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WO2016185875A1 - Twist packaging device - Google Patents

Twist packaging device Download PDF

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Publication number
WO2016185875A1
WO2016185875A1 PCT/JP2016/062832 JP2016062832W WO2016185875A1 WO 2016185875 A1 WO2016185875 A1 WO 2016185875A1 JP 2016062832 W JP2016062832 W JP 2016062832W WO 2016185875 A1 WO2016185875 A1 WO 2016185875A1
Authority
WO
WIPO (PCT)
Prior art keywords
continuous sheet
twist
unit
cylindrical
seal member
Prior art date
Application number
PCT/JP2016/062832
Other languages
French (fr)
Japanese (ja)
Inventor
和雄 渡部
Original Assignee
テンチ機械株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2015101650A external-priority patent/JP6152132B2/en
Application filed by テンチ機械株式会社 filed Critical テンチ機械株式会社
Priority to CN201680028013.7A priority Critical patent/CN107531347B/en
Priority to HK18106851.5A priority patent/HK1247168B/en
Publication of WO2016185875A1 publication Critical patent/WO2016185875A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/073—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it the web having intermittent motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
    • B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
    • B65B11/14—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents the ends of the tube being subsequently twisted

Definitions

  • the present invention relates to a twist packaging apparatus for winding a sheet around a package such as a candy in a cylindrical shape and twisting the end of the sheet.
  • a twist wrapping device disclosed in Japanese Patent Application Laid-Open No. 2008-137716 is provided with a transfer device that receives an object to be packaged sent from a hopper and transfers it in the horizontal direction, and is arranged on the downstream side of the transfer device and is unwound from a reel.
  • a former that bends the continuous sheet in the width direction and shapes it into a U-shape, a large number of chucks that are arranged on the downstream side of the former and grip the object to be packaged together with the continuous sheets, and a cylindrical continuous that is gripped by the chucks
  • a cutter that cuts the sheet between the objects to be packaged, and a plurality of twists that are moved in synchronization with the horizontal movement of the chuck portion, and that are cut by the cutter and picked and twisted at both open ends of the sheet that covered the outer periphery of the object to be packaged Department.
  • the packaging object is always packaged in a stable position with respect to the continuous sheet and twisted so that the twisting process is performed.
  • the continuous sheet is cut while moving the sheet, and the chucked part is rotated so that both ends of the sheet are positioned up and down while holding the packaged object together with the cut sheet and moving it horizontally. Twist the open ends of the sheet to complete packaging.
  • Japanese Patent Application Laid-Open No. 2011-131918 discloses a twist wrapping apparatus further including a center seal device that heat-seals a continuous sheet in the longitudinal direction and a rotary seal block that heat-seals the continuous sheet in the width direction.
  • the twist packaging apparatus the continuous sheet is heat-sealed in the longitudinal direction by the center seal apparatus, and the continuous sheet is cut in the width direction by the rotary seal block and heat-sealed.
  • Rotate the chuck portion so that both ends of the packaging sheet are positioned up and down while grasping and moving in the horizontal direction, and twist the both ends of the sheet with the twist portion to complete the packaging.
  • the chuck part In any conventional twist wrapping device, the chuck part is moved in the horizontal direction with the continuous sheet being gripped together with the continuous sheet, rotated, and then twisted by the twist part. It was difficult to twist and grip the sheet together with the continuous sheet at the chuck portion.
  • the twist wrapping apparatus comprises: A rotation twist mechanism that grips and twists the middle of the continuous sheet that is curved in the width direction and shaped into a cylindrical shape so that the longitudinal direction is the vertical direction, and a control unit,
  • the rotating twist mechanism is A twisting member that is disposed opposite to be movable in the horizontal direction and sandwiches a cylindrical continuous sheet to make it flat;
  • a rotation drive unit that rotates the twisting member in a state where the continuous sheet is pressed by the twisting member;
  • a cutter that is arranged so as to be movable in the horizontal direction inside the upper and lower intermediate positions of the twist member, and that cuts the continuous sheet sandwiched by the twist member;
  • a package holding unit that is disposed below the twisting member and that is movable in the horizontal direction and holds a continuous sheet in which the package is wrapped;
  • the portion sandwiched by the twisting member in the continuous sheet with a cutter, it has a twisted portion at the upper and lower end portions below the twisting member, and the article to be packaged was covered with the cylindrical sheet
  • the package can be completed, and the continuous sheet above the twist member is twisted at the lower end to be in a closed state so that the package can be received.
  • the upper portion is twisted and cut, so that a plurality of Even a packaged object can be reliably twisted.
  • the rotating twist mechanism further includes a twist member opening / closing mechanism for moving the twist member in the horizontal direction
  • the twist member opening / closing mechanism is Each twist member has a pin portion protruding upward, It has a semicircular arc groove on the lower surface where the pin part of the twist member is fitted and both ends are open, and it moves horizontally so that an annular groove is formed by connecting the both ends open part of each arc groove A pair of plate-shaped opening and closing members arranged in a possible manner; It is preferable to include a drive mechanism that moves the opening and closing member in the horizontal direction.
  • the rotating twist mechanism includes such a twist member opening / closing mechanism
  • the twist member is moved in the horizontal direction by the horizontal movement of the opening / closing member of the twist member opening / closing mechanism, and a cylinder having an object to be packaged between the twist members.
  • the continuous sheet can be allowed to pass, and then the continuous sheet can be made flat by the twist member.
  • the pin portion of the twisting member can be slid into the annular groove, so that the opening and closing member that moves in the horizontal direction rotates the twisting member.
  • the twist member can be rotated well without hindering the above.
  • the twist packaging device A transport unit that is disposed above the rotating twist mechanism and that is curved in the width direction and is shaped into a cylindrical shape, and transports the continuous sheet downward;
  • the control unit further includes a supply pipe that is arranged inside the continuous sheet shaped into a cylindrical shape, is extended to near the entrance of the rotary twist mechanism, and is supplied with an article to be packaged.
  • the control for performing the rotating operation of the twisting member by the rotation driving part and the cutting operation of the continuous sheet by the cutter, and the twisting member is configured to perform control for supplying an article to be packaged from a supply pipe to the inside of a cylindrical continuous sheet that is flat at an upper position, and control for conveying the continuous sheet by the conveyance unit. preferable.
  • the drive control by the control unit by the drive control by the control unit, the supply of the package from the supply pipe, the conveyance amount of the continuous sheet by the conveyance unit based on the amount of the package to be supplied, and the rotation twist mechanism By performing twisting and cutting control, a desired plurality of packages can be automatically twisted and packaged. Furthermore, since the lower end portion of the supply pipe extends to the vicinity of the entrance of the rotary twist mechanism, the continuous sheet is maintained in a cylindrical shape by the supply pipe, and the continuous sheet in which the package is wrapped is held by the package holding portion. Since the continuous sheet can be twisted in a state, the package can be twisted with a good appearance.
  • the twist packaging device Further comprising an up-and-down drive mechanism that allows the entire rotating twist mechanism to move in the up-and-down direction;
  • the control unit While driving the above-described vertical drive mechanism to move the entire rotary twist mechanism downward, the continuous sheet pressing operation by the twisting member and the package holding unit, the supply operation of the article to be packaged in the continuous sheet, and the continuous sheet by the conveying unit Rotating and twisting mechanism which performs the conveying operation, the twisting operation by the twisting member and the rotation driving unit, and the cutting operation of the continuous sheet, and after the sheet is cut, the pressing operation of the continuous sheet by the twisting member and the package holding unit is released. It is preferable that the vertical drive mechanism is controlled to raise the whole.
  • the entire rotary twist mechanism can be moved in the vertical direction by the vertical drive mechanism, and the rotary twist mechanism is lowered while carrying the continuous sheet to perform twisting / cutting processing.
  • the twisting process and the cutting process can be performed while continuously conveying the continuous sheet, and the production of the twist package can be improved.
  • the twist packaging device Further comprising an up-and-down drive mechanism that allows the entire rotating twist mechanism to move in the up-and-down direction;
  • the control unit After moving the twisting member of the rotary twisting mechanism and the package holding part to hold and hold the continuous sheet, the vertical drive mechanism is driven to move the entire rotary twisting mechanism downward, while covering the continuous sheet.
  • the entire rotary twist mechanism can be moved in the vertical direction by the vertical drive mechanism, so that the twist member and the package holder can be used without providing the transport unit or operating the transport unit.
  • the continuous sheet can be conveyed downward by performing a lowering operation based on the amount of articles to be packaged supplied to the rotary twist mechanism while holding the continuous sheet. As a result, it is possible to perform twisting and cutting while conveying a continuous sheet without using a conveying unit.
  • the twist wrapping device may be configured such that the twist member of the rotating twist mechanism can heat-seal the cylindrical continuous sheet in the lateral direction. In this case, not only the twist wrap but also the sealed wrap without the twist. In addition, sealing / twisting packaging with sealing and twisting becomes possible.
  • twist packaging apparatus of the other form which concerns on this invention is The continuous sheet that is curved in the width direction and arranged in a cylindrical shape is arranged so that the longitudinal direction is the vertical direction, and both ends in the width direction of the continuous sheet are sealed in the longitudinal direction to form a cylindrical continuous sheet.
  • the horizontal sealing mechanism is A transverse seal member that is arranged to be movable in the horizontal direction and that can be heat-sealed after sandwiching a cylindrical continuous sheet and making it flat;
  • a rotation drive unit that rotates the horizontal seal member in a state where the cylindrical continuous sheet is pressed by the horizontal seal member;
  • a cutter that is arranged so as to be movable in the horizontal direction at the upper and lower intermediate positions of the horizontal seal member, and that cuts the cylindrical continuous sheet sandwiched by the horizontal seal member;
  • a package holding unit that is disposed below the horizontal seal member and that is movable in the horizontal direction and holds a cylindrical continuous sheet in which an article to be wrapped is wrapped;
  • the package is supplied to the inside of the cylindrical continuous sheet in a state where the lower end of the cylindrical continuous sheet is heat-sealed and twisted and closed, at a position above the package.
  • the cylindrical continuous sheet is sandwiched flat by a horizontal seal member, and the cylindrical continuous sheet is held with the packaged object in the package holding part, heat sealed, cut, and further rotated by rotating the horizontal seal member.
  • By forming two twisted parts above and below the seal member it has a heat seal part and a twist part at the upper and lower ends on the lower side of the horizontal seal member.
  • the cylindrical continuous sheet above the horizontal seal member is heat sealed at the bottom and twisted to be closed so that the package can be received. Can be in a state.
  • the horizontal seal mechanism further includes a horizontal seal member opening / closing mechanism for moving the horizontal seal member in the horizontal direction,
  • the horizontal seal member opening and closing mechanism is Each lateral seal member has a pin portion protruding upward,
  • the horizontal seal member has a semicircular arc groove on the lower surface that is fitted with the pin part of the horizontal seal member and is open at both ends, and moves in the horizontal direction so that an annular groove is formed by connecting the open part of each arc groove A pair of plate-shaped opening and closing members arranged in a possible manner; It is preferable to include a drive mechanism that moves the opening and closing member in the horizontal direction.
  • the horizontal seal member is moved horizontally by the horizontal movement of the open / close member of the horizontal seal member open / close mechanism, and continuously after passing through the cylindrical continuous sheet having the packaged item inside.
  • the horizontal seal member can be favorably rotated without the horizontal opening / closing member hindering the rotation of the horizontal seal member.
  • the lateral seal member includes an upper lateral seal member and a lower lateral seal member that operate individually, At least one of the upper horizontal seal member and the lower horizontal seal member can be rotated by the rotation drive unit, It is preferable that the cutter is disposed between the upper lateral seal member and the lower lateral seal member.
  • the upper side seal member and the lower side seal member can be individually rotated, for example, one end of the package is only a heat seal without twisting, and the other end is heat sealed and twisted. A package rich in design can be obtained.
  • the twist packaging device A transport unit that transports the cylindrical continuous sheet downward;
  • a supply pipe which is arranged inside the cylindrical continuous sheet and is extended to near the entrance of the lateral seal mechanism to be supplied with an article to be packaged;
  • a drive unit for driving the conveyance unit, a drive unit for the lateral seal mechanism, and a control unit for controlling the supply of the packaged material to the supply pipe;
  • the control unit moves the horizontal seal member and the package holding unit of the horizontal seal mechanism to hold the cylindrical continuous sheet, and then heats the horizontal seal member and rotates the horizontal seal member by the rotation drive unit.
  • the control unit supplies the article to be packaged from the supply pipe, the conveyance amount of the cylindrical continuous sheet by the conveyance unit based on the amount of the article to be packaged, and the heat by the horizontal seal mechanism.
  • the control unit supplies the article to be packaged from the supply pipe, the conveyance amount of the cylindrical continuous sheet by the conveyance unit based on the amount of the article to be packaged, and the heat by the horizontal seal mechanism.
  • the twist packaging device A vertical drive mechanism that allows the entire horizontal seal mechanism to move in the vertical direction;
  • the control unit drives the vertical drive mechanism to move the entire horizontal seal mechanism downward, while pressing the cylindrical continuous sheet by the horizontal seal member and the package holding unit, and the article to be packaged in the cylindrical continuous sheet Supply operation, transport operation of cylindrical continuous sheet by transport section, heat seal operation by horizontal seal member, twist operation by horizontal seal member and rotation drive section, and cutting operation of cylindrical continuous sheet, after sheet cutting It is preferable that the vertical drive mechanism is controlled so as to release the pressing operation of the cylindrical continuous sheet by the horizontal seal member and the package holder and raise the entire horizontal seal mechanism.
  • the entire horizontal seal mechanism can be moved in the vertical direction by the vertical drive mechanism, and the horizontal seal mechanism is lowered while carrying the continuous sheet to perform heat sealing, twisting, and cutting.
  • the heat sealing, twisting and cutting can be performed while continuously transporting the cylindrical continuous sheet, and the production of the package can be improved.
  • the twist wrapping apparatus of the present invention with the bottom end of the cylindrical continuous sheet being twisted and closed, the article to be packaged is supplied to the inside of the cylindrical continuous sheet to twist the upper part of the continuous sheet. Since the processing and the cutting process are performed, a plurality of items to be packaged can be twisted and packaged reliably. Moreover, according to the twist packaging apparatus of the other form which concerns on this invention, in the state where the lower end part of the cylindrical continuous sheet was heat-sealed and twisted and closed, a packaged article was put inside the cylindrical continuous sheet. Since the cylindrical continuous sheet that is supplied and above the package can be heat-sealed, twisted, and cut, a plurality of packages can be sealed and twist-wrapped reliably at a time.
  • 9 (A) shows the state which the holding plate opened
  • 9 (B) shows a state in which the holding plate is closed.
  • the twist wrapping apparatus 1 of Embodiment 1 is for forming a continuous sheet S fed from a supply pipe 21 for supplying an article to be packaged T and a reel (not shown) into a cylindrical shape.
  • the former unit 2 including the former 22, the conveying unit 3 (conveying unit) for conveying the continuous sheet S shaped in a cylindrical shape downward, and the continuous sheet S shaped in a cylindrical shape are made flat.
  • a rotary twist unit 4 (rotary twist mechanism) for rotating and twisting, a control device 12 (control unit) for controlling the operation of the present twist packaging apparatus 1, and a casing 11 in which each unit is housed.
  • the casing 11 of the twist wrapping apparatus 1 includes an upper frame 11a, a lower frame 11b, an intermediate frame 11c, a horizontal reinforcing frame 11d, a vertical reinforcement frame, in order to fix the former unit 2, the transport unit 3 and the rotary twist unit 4 at predetermined positions.
  • a frame 11e, a vertical reinforcing frame 11f, a top plate 11g, a bottom plate 11h, and an intermediate plate 11i are provided.
  • Each vertical frames 11e are fixed to four corners and three lower frames 11b arranged horizontally along the edge are fixed to the rectangular bottom plate 11h.
  • the lower end of the vertical frame 11e is fixed to the end of the lower frame 11b.
  • three upper frames 11a arranged horizontally are fixed to the upper ends of the four vertical frames 11e so that the front is opened, and three intermediate frames 11c arranged horizontally are fixed to the upper and lower intermediate portions.
  • a horizontal reinforcing frame 11d is fixed to an intermediate portion of the two intermediate frames 11c arranged to face each other so as to connect the intermediate frames 11c to each other.
  • a vertical reinforcing frame 11f that connects the lower frame 11b and the intermediate frame 11c is fixed at a position where the horizontal reinforcing frame 11d of the two intermediate frames 11c arranged opposite to each other is fixed.
  • a rectangular top plate 11g is fixed to the upper frame 11a, and a rectangular middle plate 11i is fixed to the intermediate frame 11c and the horizontal reinforcing frame 11d.
  • a guide roller 11j for guiding the continuous sheet S fed from a reel (not shown) to the former 22 is fixed to the upper frame 11a.
  • movement of each unit is attached to one side part of the vertical frame 11e.
  • the former unit 2 includes a supply pipe 21 that extends vertically, and a former 22 that is disposed with the supply pipe 21 inserted through the former.
  • the supply pipe 21 is supplied with an article T to be wrapped that is wrapped with a continuous sheet S.
  • the former 22 is used for bending the continuous sheet S into a U shape and shaping it into a cylindrical shape.
  • the former unit 2 includes a support member for supporting the supply pipe 21 and the former 22.
  • the support member includes an upper support plate 23, an upper support shaft 24, a lower support plate 25, and a lower support shaft 26.
  • the long plate-like upper support plate 23 is fixed to the lower support plate 25 via four upper support shafts 24 extending vertically.
  • the lower support plate 25 is formed in a long plate shape having a length spanned over the intermediate frame 11c, and is supported by the intermediate frame 11c via four lower support shafts 26 as shown in FIG. .
  • the supply pipe 21 has an upper flange portion 21 a near the upper end, and has a length that extends to the vicinity of the upper pressing portion 41 of the rotary twist unit 4. As shown in FIGS. 1 and 2, the supply pipe 21 is supported by the intermediate frame 11 c via an upper support plate 23, an upper support shaft 24, a lower support plate 25, and a lower support shaft 26. A hole through which the supply pipe 21 is inserted is formed in the longitudinal intermediate portion of the upper support plate 23 and the longitudinal support intermediate portion of the lower support plate 25, and the upper flange portion 21 a of the supply pipe 21 is placed on the upper support plate 23.
  • the supply pipe 21 is fixed to the upper support plate 23 by fixing with a bolt.
  • the hole formed in the lower support plate 25 is formed in such a size that the continuous sheet S along the outer peripheral surface of the supply pipe 21 can be inserted.
  • the former 22 is formed in a cylindrical shape having an upper end inclined obliquely and a lower flange portion 22a at the lower end.
  • the lower flange portion 22 a of the former 22 is fixed around the hole of the lower support plate 25, and the supply pipe 21 is inserted into the former 22.
  • a gap is formed between the inner surface of the former 22 and the outer surface of the supply pipe 21 so that the continuous sheet S can be conveyed.
  • the continuous sheet S fed out from a reel (not shown) and guided by a guide roller 11j is bent from the front end of the former 22 along the outer peripheral surface of the supply pipe 21 to form the former 22 and the supply pipe. 21.
  • the continuous sheet S passes through the former 22, as shown in FIG. 1, the continuous sheet S is shaped into a cylindrical shape with both end portions in the width direction overlapping each other.
  • the supply pipe 21 is disposed inside the continuous sheet S shaped into a cylindrical shape, and it becomes easy to supply an article to be packaged into the cylindrical continuous sheet S from the supply pipe 21.
  • the continuous sheet S is maintained in a cylindrical shape by the supply pipe 21, and the package T is placed at the lower end portion in the supply pipe 21. Since it can be kept waiting, the continuous sheet S in which the package T is wrapped by the package holding unit 7 to be described later can be held in a good appearance, and the continuous sheet S can be twisted. As a result, a package P having a good appearance can be obtained.
  • the transport unit 3 serving as a transport unit of the present invention is disposed below the former unit 2.
  • the transport unit 3 includes a pair of endless transport belts 31 arranged in parallel with the supply pipe 21 so as to sandwich the supply pipe 21.
  • the endless transport belt 31 transports the cylindrical continuous sheet S along the outer surface of the supply pipe 21 downward while pressing the continuous sheet S against the supply pipe 21.
  • the endless conveyance belt 31 is formed of a toothed belt that is wound around a driving pulley 32 and a driven pulley 33. Although the endless conveyance belt 31 is not illustrated, a pressing protrusion that presses the continuous sheet S toward the supply pipe 21 is raised on the outer periphery.
  • each drive pulley 32 is rotationally driven by a conveyance drive motor 34 provided individually.
  • a pair of endless conveyance belts 31, a drive pulley 32, a driven pulley 33, and a conveyance drive motor 34 are supported by a long belt attachment plate 35 extending in the vertical direction.
  • the pair of belt attachment plates 35 are supported by two upper and lower guide bars 36 so as to be movable in the horizontal direction.
  • the two guide bars 36 are fixed at both ends to a pair of side plates 37, and the side plates 37 are fixed to a rear base plate 38.
  • the base plate 38 is fixed to the horizontal reinforcing frame 11d and the vertical reinforcing frame 11f so as to be connected to the end of the middle plate 11i. Further, a belt moving air cylinder 39 for moving the belt attaching plate 35 in the horizontal direction is attached to each side plate 37.
  • the conveyance unit 3 extends the supply pipe 21 to the vicinity of the upper pressing portion 41 and conveys the endless conveyance belt 31 while pressing the continuous sheet S with the outer surface of the supply pipe 21 as a receiving surface. Therefore, the supply pipe 21 can serve as a guide to reliably convey the cylindrical continuous sheet S downward, and the supply object T can be reliably supplied from the supply pipe 21 to the inside of the cylindrical continuous sheet S. can do.
  • the rotary twist unit 4 serving as the rotary twist mechanism of the present invention is disposed below the transport unit 3 and performs an operation of grasping and twisting the middle of the continuous sheet S.
  • the rotary twist unit 4 is arranged in a cylindrical shape by being disposed below a pair of upper pressing parts 41 and a pair of upper pressing parts 41 that press the cylindrical continuous sheet S flatly.
  • a second twist member 43b is provided.
  • the rotary twist unit 4 rotates the twist member opening / closing mechanism 5 that opens and closes the first and second twist members 43a and 43b in the horizontal direction, and the first and second twist members 43a and 43b that sandwich the continuous sheet S.
  • the rotating drive unit 6 to be moved, the lower holding unit 42, and a support frame for supporting each device of the package holding unit 7 that holds the continuous sheet S in which the package T is wrapped, and the rotary twist unit 4. 8 is provided.
  • the support frame 8 includes a pair of long support frames 81 and two short supports fixed to one end portion and an intermediate portion of each long support frame 81.
  • a frame 82 and a ring-shaped base frame 83 for supporting the rotation driving unit 6 and the package holding unit 7 are provided.
  • the base frame 83 is fixed to the lower ends of the long support frame 81 and the short support frame 82.
  • the long support frame 81 supports members constituting the twist member opening / closing mechanism 5.
  • the support frame 8 is supported by two support shafts 85 via linear bushes 84 at an intermediate portion of the long support frame 81. As shown in FIG. 2, the upper end portion of the support shaft 85 is fixed to the base plate 38 that supports the transport unit 3, and the lower end portion is fixed to the bottom plate 11h.
  • the twist wrapping apparatus 1 of the first embodiment includes a vertical drive unit 10 (vertical drive mechanism) that moves the entire rotary twist unit 4 up and down.
  • the vertical drive unit 10 includes a vertical drive belt 10a, a lower drive pulley 10b around which the vertical drive belt 10a is stretched, an upper driven pulley 10c, and a drive motor 10d.
  • the driven pulley 10 c is rotatably supported on the lower surface of the middle plate 11 i of the casing 11.
  • the driving pulley 10b and the driving motor 10d are supported by the vertical reinforcing frame 11f and the vertical frame 11e via a support plate (not shown).
  • the vertical bushing 10a of the vertical drive unit 10 is connected to the linear bushing 84, and the support frame 8 moves up and down with respect to the support shaft 85 via the linear bushing 84 by the vertical movement of the vertical drive belt 10a. It is like that. Then, when the support frame 8 is moved up and down by the vertical drive unit 10, the entire rotary twist unit 4 is moved up and down.
  • the pair of upper pressing portions 41 of the rotating twist unit 4 is an upper plate member 41 a having an L-shaped cross section and a vertical wall of the upper plate member 41 a fixed to each other. And an upper air cylinder 41b for moving the plate-like member 41a in the horizontal direction.
  • the upper air cylinder 41b is fixed to the outer surface of the short support frame 82 via an L-shaped bracket 41c.
  • the upper plate-like member 41a is formed with a tapered tip portion facing each other. By driving the upper air cylinder 41b, the continuous sheet S shaped into a cylindrical shape at the tapered tip is pressed down into a flat shape.
  • the pair of lower pressing portions 42 is disposed below the upper pressing portion 41.
  • the lower pressing portion 42 includes a lower plate-like member 42a that is opposed to be movable in the horizontal direction, and a lower air cylinder 42b that horizontally moves the lower plate-like member 42a in a direction to sandwich the continuous sheet S.
  • the lower air cylinder 42b is fixed to a plate-like cylinder mounting bracket 42c fixed to the short support frame 82. Further, a pin portion 42d protruding downward is formed on the lower surface of the lower plate-like member 42a.
  • a cylinder pusher 42e for pressing the pin portion 42d of the lower plate-like member 42a is fixed to the tip of the piston rod of the lower air cylinder 42b, and the pin portion 42d is driven via the cylinder pusher 42e by driving the lower air cylinder 42b. Is configured to be pressed.
  • the lower plate-like member 42a has a thin plate thickness at the opposed tip portions, and presses the continuous sheet S shaped into a cylindrical shape at the tip portions of these thin plates so as to be flat.
  • the positions of the tips of the upper plate member 41a and the lower plate member 42a are the same in the vertical direction.
  • the lower plate member 42a is horizontally movable in a state of being biased in a direction away from the center of the large spur gear 61 via a compression spring (not shown) on the upper surface of the large spur gear 61 constituting the rotation drive unit 6 described later. It is supported by.
  • Each lower plate-like member 42a is centered against the compression spring so that when the pin portion 42d is pushed through the cylinder pusher 42e by driving the lower air cylinder 42b, the cylindrical continuous sheet S is pressed against each other. Move horizontally toward.
  • the large spur gear 61 of the rotation drive unit 6 rotates, when the piston of the lower air cylinder 42b is retracted, the opposed lower plate member 42a is retracted by the recovery of the compression spring and is separated from the continuous sheet S.
  • the large spur gear 61 is formed with a long hole 62 through which the pin portion 42d can move, as shown in FIG. Since the upper pressing portion 41 and the lower pressing portion 42 can surely make the continuous sheet S flat before the cylindrical continuous sheet S is sandwiched between the first and second twist members 43a and 43b, The continuous sheet S can be securely and stably held by the first and second twist members 43a and 43b.
  • the upper pressing portion 41 and the lower pressing portion 42 may be omitted.
  • the first and second twist members 43a and 43b of the rotary twist unit 4 are disposed between the upper pressing portion 41 and the lower pressing portion 42, and will be described later as shown in FIG.
  • the twist member opening / closing mechanism 5 is disposed so as to be movable in the horizontal direction.
  • the first and second twist members 43a and 43b are formed of rectangular parallelepiped blocks, and have a height for sandwiching the flat continuous sheet S in a vertical direction over a predetermined length.
  • the first and second twist members 43a and 43b are attached to the first and second attachment members 51a and 51b that are part of the first and second twist members 43a and 43b. ing.
  • the surfaces of the first and second twist members 43a and 43b that sandwich the continuous sheet S are formed to have irregularities by forming a large number of small lateral grooves so that the continuous sheet S does not slip.
  • the first and second twist members 43a and 43b sandwich the flat continuous sheet S, and rotate simultaneously by driving the rotation drive unit 6 in the sandwiched state.
  • the 1st and 2nd twist members 43a and 43b can also be set as the structure which heats the surface which clamps the continuous sheet S, and can heat-seal simultaneously with twisting the continuous sheet S in this case.
  • the first and second mounting members 51a and 51b to which the first and second twist members 43a and 43b are attached include the twist member slide block 52 and the twist member slide block 52, respectively. It is supported on the upper surface of the large spur gear 61 through a twisting member rail 53 to be slidably movable.
  • two twist member rails 53 are fixed in parallel to the upper surface of the large spur gear 61, and two twist member slide blocks 52 are respectively attached to the two twist member rails 53. Are slidably arranged. Then, the twist member slide block 52 is fixed to two locations on the bottom surfaces of the first and second attachment members 51a and 51b, and the first and second attachment members 51a and 51b are placed on the two twist member rails 53. It is designed to move horizontally.
  • first and second mounting members 51a, 51b, the twist member slide block 52, and the twist member rail 53 are twist member opening / closing mechanisms that move the first and second twist members 43a, 43b in the horizontal direction. 5 is a part.
  • the twist member opening / closing mechanism 5 includes a first cam follower plate 55a that is a part of the first mounting member 51a and a second cam follower plate that is a part of the second mounting member 51b. 55b.
  • a first cam follower 54a for horizontally moving the first attachment member 51a is attached to the first cam follower plate 55a
  • a second cam follower 54b for horizontally moving the second attachment member 51b is attached to the second cam follower plate 55b. Is attached.
  • the first cam follower 54a and the second cam follower 54b are the pin portions of the present invention.
  • the first cam follower 54a and the second cam follower 54b are fixed to the first and second cam follower plates 55a and 55b so that the heads protrude upward from the first and second cam follower plates 55a and 55b.
  • a semicircular arc first having a circular groove with the head of the first cam follower 54 a fitted on the lower surface and open at both ends above the first cam follower plate 55 a.
  • An opening / closing cam 56a is arranged.
  • the first opening / closing cam 56a is fixed to a long plate-like first opening / closing cam mounting plate 57a having a circular arc cutout at the center.
  • a semicircular arc second opening / closing cam 56b having an arc groove with the head of the second cam follower 54b fitted to the lower surface and open at both ends is disposed.
  • the second opening / closing cam 56b is also fixed to a long plate-like second opening / closing cam mounting plate 57b having a circular arc cutout at the center.
  • the first and second opening / closing cams 56a, 56b and the first and second opening / closing cam mounting plates 57a, 57b are also members constituting the twisting member opening / closing mechanism 5.
  • the first opening / closing cam 56a and the first opening / closing cam mounting plate 57a serve as one of the plate-shaped opening / closing members of the present invention.
  • the second opening / closing cam 56b and the second opening / closing cam mounting plate 57b serve as the plate-shaped opening / closing member of the present invention. Of the other.
  • an opening / closing cam rail 58 a is provided on one end side in the longitudinal direction on the upper end surfaces of the two long support frames 81.
  • the two opening / closing cam rails 58a arranged opposite to each other have a first opening / closing cam mounting plate 57a to which the first opening / closing cam 56a is fixed and a second opening / closing cam mounting plate 57b to which the second opening / closing cam 56b is fixed.
  • the open / close cam slide block 58b is fixed to the back surfaces of both end portions in the longitudinal direction of the first and second open / close cam mounting plates 57a, 57b.
  • a rod support member 58c is attached to the upper surfaces of the longitudinal ends of the first and second opening / closing cam attachment plates 57a and 57b.
  • One end of a short rod 58d is swingably supported by the two rod support members 58c of the first opening / closing cam mounting plate 57a.
  • one end of the long rod 58e is swingably supported by the two rod support members 58c of the second opening / closing cam mounting plate 57b.
  • an opening / closing driven lever 58f On the other end in the longitudinal direction of the two long support frames 81, an opening / closing driven lever 58f on which the other ends of the short rod 58d and the long rod 58e are swingably supported, and a drive for swinging the opening / closing driven lever 58f.
  • An opening / closing drive lever 58h for rotating the shaft 58g and the drive shaft 58g so as to rotate forward and backward is supported via a mounting plate 58i.
  • crank arm 58j is swingably supported at the lever tip of the open / close drive lever 58h, and the other end of the crank arm 58j is outside the disc 58m rotated by the open / close drive motor 58k. It is supported on the periphery so as to be swingable.
  • the opening / closing drive motor 58k and the disk 58m are fixed to a linear bush 84 inserted through a support shaft 85 that supports the support frame 8 via a motor mounting plate 58n.
  • the opening / closing drive motor 58k is rotationally controlled by the control device 12 so as to reciprocately rotate the drive shaft 58g within a predetermined angle range.
  • the crank arm 58j moves linearly and swings the opening / closing drive lever 58h.
  • the drive shaft 58g is rotated by the swing of the open / close drive lever 58h, and the open / close driven lever 58f is swinged by the rotation of the drive shaft 58g.
  • the open / close driven lever 58f swings, the short rod 58d and the long rod 58e connected to the open / close driven lever 58f linearly move.
  • first open / close cam mounting plate 57a and the second open / close cam mounting plate 57b are moved away from each other by the reciprocating linear motion of the short rod 58d and the long rod 58e, the first and second open / close cams 56a are moved. , 56b are closed, and the first and second opening / closing cams 56a, 56b are opened when moved in a direction away from the close state.
  • first and second opening / closing cam mounting plates 57a, 57b the first and second opening / closing cams 56a, 56b, the first and second cam followers 54a, 54b, and the first and second cam follower plates 55a, 55b.
  • the 1st and 2nd twist members 43a and 43b open and close via the 1st and 2nd attachment members 51a and 51b.
  • the rotation driving unit 6 that simultaneously rotates the first and second twist members 43 a and 43 b in a state where the continuous sheet S is sandwiched includes the first and second twist members 43 a and 43 b, A large spur gear 61 on which the first and second mounting members 51 a and 51 b are arranged, and four small spur gears 63 that rotate the large spur gear 61 are provided.
  • a twist member rail 53 for sliding the first and second twist members 43a and 43b, the first and second attachment members 51a and 51b, and the like is fixed.
  • the large spur gear 61 has an opening 64 at the center so that the cylindrical continuous sheet S can be inserted.
  • One of the four small spur gears 63 is rotationally driven by a gear drive motor 65.
  • the four small spur gears 63 and the gear drive motor 65 are supported by the base frame 83.
  • the rotation drive unit 6 is in a state where the first and second opening / closing cams 56a and 56b are close to each other and the leading ends of the first and second twisting members 43a and 43b are in contact with each other to sandwich the cylindrical continuous sheet S. At this time, the large spur gear 61 is rotationally driven.
  • the first and second opening / closing cams 56a, 56b are closed, the end surfaces of the first and second opening / closing cams 56a, 56b are in contact with each other, and circular grooves formed on the lower surfaces of the respective opening and closing cams 56a, 56b are formed. It becomes a state.
  • the first and second cam followers 54a and 54b slide in the annular groove as the large spur gear 61 rotates, and the first and second twist members 43a, 43b also rotates together with the large spur gear 61 to twist the cylindrical continuous sheet S.
  • the first cam follower 54a is positioned at the center of the first opening / closing cam 56a
  • the second cam follower 54b is positioned at the center of the second opening / closing cam 56b.
  • a hollow slip ring 66 In the opening 64 formed at the center of the large spur gear 61, an upper portion of a hollow slip ring 66 is disposed.
  • the slip ring 66 protects a holding plate 71 of the package holding unit 7 to be described later, and, for example, a member such as a heater that needs electric drive can be arranged on the large spur gear 61 so that power can be supplied. Is provided to do.
  • the slip ring 66 is fixed to a rotor 66 a that rotates in conjunction with the rotation of the large spur gear 61 and a base frame 83 of the support frame 8 via a slip ring attachment member 67. And a stator 66b.
  • the holding plate 71 of the package holding unit 7 In the hollow portion of the rotor 66a of the slip ring 66, the holding plate 71 of the package holding unit 7, the cylindrical continuous sheet S, and the packaged object T wrapped in the continuous sheet S are inserted.
  • the package holding unit 7 includes six holding plates 71 that hold the continuous sheet S in which the package T is wrapped and can swing in the horizontal direction.
  • the holding plate 71 extends in the horizontal direction continuously to the upper and lower plate-like holding pieces 71a disposed in the hollow portion of the slip ring 66 and the lower end of the holding piece 71a, and the rotating shaft 72 is fixed.
  • a bifurcated rotation support portion 71b a bifurcated rotation support portion 71b.
  • a drive gear 73 is disposed between the two branches of the rotation support portion 71 b, and the drive gear 73 is fixed to the rotating shaft 72.
  • bearings 74 are attached to the upper and lower ends of the rotating shaft 72. As shown in FIG.
  • the bearing 74 is fixed to an upper bearing support plate 75a and a lower bearing support plate 75b that are disposed so as to sandwich the rotation support portion 71b between the upper and lower sides.
  • An opening through which the holding piece 71a of the holding plate 71 is inserted is formed in the upper bearing support plate 75a.
  • the lower bearing support plate 75 b is connected to one of the rotating shafts 72 of the holding plate 71 on the lower surface of the lower bearing support plate 75 b to rotate the rotating shaft 72 forward and backward within a predetermined range.
  • An air cylinder 76 is disposed.
  • a rod end 77 is fixed to the tip of the piston rod of the air cylinder 76, and one end of a long cylinder lever 78 is swingably connected to the rod end 77.
  • the other end of the cylinder lever 78 is fixed to the lower end of the rotating shaft 72.
  • the air cylinder 76 is swingably supported on the lower surface of the lower bearing support plate 75b.
  • a transmission gear 79 is disposed between the drive gears 73 of the adjacent holding plates 71 so that the six holding plates 71 swing in conjunction with each other.
  • Six transmission gears 79 are arranged, a transmission gear 79a meshing with the drive gear 73, a bearing 79b fitted to both upper and lower end surfaces of the transmission gear 79a, and a support shaft inserted through the bearing 79b and the transmission gear 79a.
  • the transmission gear 79 is fixed to the upper bearing support plate 75a and the lower bearing support plate 75b by extremely low head bolts 79e.
  • the six drive gears 73 and the six transmission gears 79a are arranged so as to draw a circle along the hollow circle of the slip ring 66, and as shown in FIG.
  • the other rotary shafts 72 rotate in conjunction with each other via the transmission gear 79a.
  • the numbers of the drive gear 73 and the transmission gear 79a are not limited to the first embodiment.
  • the holding piece 71a When the leading end of the holding piece 71a swings in the opposite direction, the state shown in FIG. 9A is obtained and the holding of the continuous sheet S is released. Since the holding piece 71a has a length capable of holding the plurality of packages T at the same time even if the plurality of packages T are provided in the continuous sheet S, the continuous sheet S does not lose its shape. A plurality of articles to be packaged T can be reliably held via the.
  • the first and second twist members 43a and 43b cover the continuous sheet S wrapped around the package T with the holding plate 71 of the package holder 7 over the entire circumference.
  • the continuous sheet S without the package T is sandwiched and twisted, and the continuous sheet S is cut.
  • the package holder 7 is fixed to the slip ring mounting member 67 so as to be movable up and down as shown in FIG.
  • the lower bearing support plate 75b of the package holder 7 is fixed to the slip ring mounting member 67 via two shrinkage absorbing air cylinders 80.
  • the holding plate 71 also moves up and down with respect to the slip ring 66.
  • the entire package holding unit 7 can be moved upward by the shrinkage absorbing air cylinder 80 in accordance with the twisting process, and therefore the continuous sheet S having a low film strength is used. Even in this case, the continuous sheet S can be reliably twisted without damaging the continuous sheet S.
  • a plate-like cutter 91 is arranged inside the upper and lower intermediate positions of one first twisting member 43 a so as to be movable in the horizontal direction.
  • the cutter 91 cuts the continuous sheet S in a state where the continuous sheet S is held flat by the first and second twist members 43a and 43b.
  • the cutter 91 is fixed to a first cam follower plate 55a to which the first cam follower 54a is attached. Further, as shown in FIG. 4, a cutter rail 92 is fixed to the bottom surface of the first cam follower plate 55a, and the cutter rail 92 slides on a cutter slide block 93 fixed to the upper surface of the first mounting member 51a. It is supported movably.
  • the first cam follower plate 55a and the first attachment member 51a are connected via a compression spring 94 as shown in FIGS.
  • the compression spring 94 is provided between a spring receiver 95 provided on the first attachment member 51a and a spring stopper 96 formed on the upper surface side of the first cam follower plate 55a.
  • a plate stopper 97 for restricting the first cam follower plate 55a from moving backward with respect to the first mounting member 51a is formed on the lower surface of the first cam follower plate 55a.
  • the movement of the cutter 91 will be described.
  • the first and second opening / closing cams 56a, 56b are advanced in the closing direction so that the tip ends of the first and second twisting members 43a, 43b are in contact with each other, the first opening / closing cam 56a
  • the first cam follower plate 55a also advances through the first cam follower 54a fitted in the arc groove.
  • the first mounting member 51a is also advanced by being pushed by the compression spring 94 until the tip of the first twist member 43a contacts the tip of the second twist member 43b.
  • the tip end portion of the cutter 91 is housed in the first twist member 43a.
  • the continuous sheet S When the continuous sheet S is cut by the cutter 91, it is cut by the first and second twist members 43a and 43b in a state where the continuous sheet S wrapped around the package T is held by the holding plate 71 of the package holding unit 7.
  • the first and second twist members 43a and 43b are rotated once by the rotation driving unit 6 while the continuous sheet S is sandwiched, and twist processing is performed.
  • the first and second opening / closing cams 56a and 56b are retracted in the opening direction, and the first cam follower plate 55a is retracted via the first cam follower 54a.
  • the cutter 91 is retracted toward the inside of the first twist member 43a by the elastic recovery of the compression spring 94.
  • the plate stopper 97 of the first cam follower plate 55a comes into contact with the stopper receiving portion 98 provided on the first mounting member 51a by the elastic recovery of the compression spring 94, the retreat of the cutter 91 is stopped.
  • the first mounting member 51a also starts to move in conjunction with the retraction of the first cam follower plate 55a.
  • the tip portions of the twisting members 43a and 43b are separated from each other and become the state shown in FIG.
  • the cutter moving mechanism 9 is configured by the cutter 91, the cutter rail 92, the cutter slide block 93, the compression spring 94, the spring receiver 95, the spring stopper 96, the plate stopper 97, and the stopper receiver 98. Yes.
  • the cutter 91 can slide in the horizontal direction with respect to the first mounting member 51a and the first twist member 43a by the opening and closing operation of the first cam follower plate 55a.
  • the second mounting member 51b not provided with the cutter 91 is fixed to the second cam follower plate 55b to which the second cam follower 54b is attached.
  • the second cam follower plate 55b is opened / closed via the second cam follower 54b, and in conjunction with the movement of the second cam follower plate 55b, the second mounting member 51b and the second twisting member 43b are moved. Open and close.
  • Control device In the first embodiment, the conveyance drive motor 34 and the belt moving air cylinder 39 of the conveyance unit 3 are driven, the upper air cylinder 41b, the lower air cylinder 42b, the opening / closing drive motor 58k, the gear drive motor 65 in the rotary twisting unit 4, Driving the slip ring 66, the air cylinder 76 and the contraction absorbing air cylinder 80, driving the driving motor 10d of the vertical drive unit 10, supplying the package T to the supply pipe 21, and if necessary
  • the control device 12 controls the heating of the first and second twist members 43a and 43b.
  • control device 12 in order to automatically twist and package a plurality of desired articles to be packaged T, the supply amount of the articles to be packaged T from the supply pipe 21 into the continuous sheet S is controlled and supplied.
  • the conveyance amount of the continuous sheet S by the conveyance unit 3 is controlled based on the amount of the package T, and the twisting and cutting by the rotary twist unit 4 are controlled.
  • control device 12 when controlling the twisting and cutting by the rotary twisting unit 4, moves the upper pressing portion 41 to sandwich the continuous sheet S, and then is positioned above the upper pressing portion 41. Control is performed so that a predetermined amount of the article to be packaged T is supplied from the supply pipe 21 into the cylindrical continuous sheet S.
  • the twist wrapping apparatus 1 is twisted and cut by driving and controlling each device by the control device 12.
  • the continuous sheet S is manually unwound from a reel (not shown) and supplied to the former 22 of the former unit 2 via the guide roller 11j. At this time, the continuous sheet S is bent in a U-shape by the tip of the former 22 along the outer peripheral surface of the supply pipe 21 and enters between the supply pipe 21 and the former 22.
  • the continuous sheet S that has entered the former 22 is shaped into a cylindrical shape in which both ends in the width direction overlap each other.
  • the continuous sheet S shaped into a cylindrical shape is passed through the transport unit 3 and pulled out to the lower end of the rotary twist unit 4 so that the continuous sheet S can be transported.
  • the lower end portion of the continuous sheet S may be manually twisted in advance to form a twisted portion, or before the package T is supplied, the rotary twisting unit 4 is driven to form the twisted portion. Also good.
  • the continuous sheet S is unwound from the reel and conveyed to the rotary twisting unit 4 via the former unit 2, and at this time, the continuous sheet S is conveyed.
  • the articles to be packaged T are reliably supplied from the supply pipe 21 extending to the outlet of the transport unit 3 in a state where they are aligned vertically. Since the lower end of the continuous sheet S is twisted and closed, the continuous sheet S is conveyed downward while the article to be packaged T is wrapped.
  • the article T to be packed next is supplied from the supply pipe 21, and is covered by the lower portion of the supply pipe 21 as shown in FIG.
  • the package T waits. Further, as shown in FIG. 10 (3), the first and second twist members 43a and 43b advance, and the continuous sheet S that is flattened by being pressed by the upper pressing portion 41 and the lower pressing portion 42 is formed. Hold it.
  • the continuous sheet S is held between the first and second twist members 43a and 43b, and as shown in FIG. 10 (4), the cutter 91 is advanced and the first and second twists of the continuous sheet S are advanced. The intermediate position sandwiched between the members 43a and 43b is cut.
  • the continuous sheet S enclosing the package T is held by the holding plate 71 of the package holding unit 7 and cut by the first and second twist members 43a and 43b.
  • the first and second twist members 43a and 43b are rotated once by the rotation driving unit 6 while the continuous sheet S is sandwiched.
  • the continuous sheet S is twisted at two locations above and below the first and second twist members 43a and 43b while the portions sandwiched between the first and second twist members 43a and 43b are maintained flat. .
  • the lower plate-like member 42a of the lower pressing portion 42 is separated from the continuous sheet S.
  • the upper plate-like member 41a of the upper pressing portion 41 is separated from the continuous sheet S.
  • the continuous sheet S is first cut by the cutter 91, but the first and second twist members 43a and 43b are first rotated to twist the continuous sheet S, and then the continuous sheet S is cut by the cutter 91. You may make it cut
  • the cutter moving mechanism 9 may be driven independently of the twisting member 43 using other driving means such as an air cylinder, instead of interlocking with the movement of the opening / closing cam 56 and the like.
  • the holding plate 71 maintains the state where the continuous sheet S wrapped with the package T is held, so the first and second twist members 43 a and 43 b are rotated.
  • the continuous sheet S can be reliably twisted without rotating the portion of the continuous sheet S that wraps the article T to be packaged.
  • the continuous sheet S is transported again as shown in FIG. 10 (5), and the package T of the continuous sheet S in FIG. 10 (2) is wrapped.
  • the continuous sheet S is conveyed to a position at which the portion is held by the package holder 7.
  • the portion of the continuous sheet S in which the article to be packaged T is wrapped is held by the package holding unit 7, the continuous sheet S is similarly twisted and cut.
  • the bottom of the cylindrical continuous sheet S is twisted and closed to be wrapped inside the cylindrical continuous sheet S. Since the upper twist processing and cutting processing are performed after the article T is supplied, even a plurality of articles to be packaged T can be twist-wrapped reliably.
  • a predetermined amount of the package T is supplied into the continuous sheet S above the upper pressing portion 41, and the cylindrical continuous sheet S is supplied.
  • a predetermined amount of covering is applied to the inside of the continuous sheet S whose lower end is closed by the twisting process.
  • the package T can be supplied immediately.
  • the continuous sheet wrapped with the article to be packaged T can be immediately conveyed to the position of the package holder, and the next twisting operation can be performed.
  • the supply pipe 21 since the lower end portion of the supply pipe 21 extends to the vicinity of the upper pressing portion 41, the supply pipe 21 maintains the cylindrical shape, and the supply object T for the next twist packaging is provided inside the supply pipe 21. It can be kept waiting in an aligned state.
  • the package P can be in a twisted state with a good appearance, Even if mechanical vibration or the like occurs, it is possible to prevent the package T from being displaced from the continuous sheet S.
  • the twisting and cutting of the continuous sheet S wrapped with the article T to be packaged shown in FIG. 10 is carried out by intermittently conveying the continuous sheet S. As shown in FIG. Further, twisting and cutting can be performed while continuously conveying the continuous sheet S.
  • the continuous sheet S is conveyed in a state in which the article to be packaged T is supplied into the continuous sheet S that is twisted and closed at the lower end.
  • FIG. 11 (2) when the portion of the continuous sheet S in which the package T is wrapped is conveyed to a position where it is held by the package holder 7, this portion is held by the package holder 7.
  • the upper pressing portion 41 and the lower pressing portion 42 press the continuous sheet S flatly.
  • the to-be-packaged goods T are supplied to the inside of the cylindrical continuous sheet S above the 1st and 2nd twist members 43a and 43b.
  • the lower pressing portion 42 is separated from the continuous sheet S, and the first and second twist members 43a. , 43b, the continuous sheet S is cut, the first and second twist members 43a, 43b are rotated to perform twisting, and the upper pressing portion 41 is separated from the continuous sheet S.
  • the rotary twist unit 4 When the package P is dropped, as shown in FIG. 11 (6), the rotary twist unit 4 is moved to a position where the upper pressing portion 41 and the lower pressing portion 42 press the continuous sheet S while continuing to convey the continuous sheet S. Raise. Since a predetermined amount of the package T is already accommodated in the continuous sheet S whose lower end portion is closed by twisting due to the separation of the upper pressing portion 41, the rotary twist unit 4 is raised to a predetermined position. Immediately, as shown in FIG. 11 (2), the continuous sheet S is pressed by the upper pressing portion 41 and the lower pressing portion 42, and the rotary twisting unit 4 is lowered in the same manner to perform twisting and cutting.
  • the conveyance of the continuous sheet S is intermittently stopped, and the twist process and the cutting process are not performed. Since the rotating and twisting unit 4 can be lowered while conveying the continuous sheet S to perform twisting and cutting, continuous twisting without wasting time can be performed to improve the productivity of the package.
  • the upper pressing portion 41 and the lower pressing portion 42 are provided above and below the first and second twist members 43a and 43b.
  • the upper pressing portion 41 and the lower pressing portion 42 are provided. It is also possible to sandwich the cylindrical continuous sheet S with only the first and second twist members 43a and 43b. In this case, when the continuous sheet S is pressed by the first and second twist members 43 a and 43 b, the article T to be packaged next is supplied from the supply pipe 21, and the article to be packaged is provided below the supply pipe 21. Wait T
  • the twist wrapping apparatus of the present invention does not provide a transport unit, or if there is a transport unit, without driving the transport unit.
  • the continuous sheet S is moved by the upper pressing part 41 and the lower pressing part 42, the first and second twisting members 43 a and 43 b and the package holding part 7. Twist packaging can also be performed while holding and transporting downward.
  • the twist wrapping apparatus 1 shown in FIG. 12 is the same as the configuration of the first embodiment except that there is no transport unit, and the same components are denoted by the same reference numerals. Furthermore, the twist packaging apparatus 1 shown in FIG. 12 has a point that the continuous sheet S is held and conveyed by the upper pressing portion 41 and the lower pressing portion 42, the first and second twisting members 43a and 43b, and the package holding portion 7. Except for this, the operations shown in FIGS. 12 (2) to (5), which are the operations of the other components, are the same as the operations shown in FIGS.
  • the twist wrapping apparatus 1 of the second embodiment is different from the first embodiment in the distance that the entire rotary twist unit 4 is lowered by the vertical drive unit 10. Specifically, as shown in FIG. 12 (5), when the position where the first and second twist members 43a and 43b and the package holder 7 are released is raised after that, the rotary twist unit 4 is raised. The first and second twist members 43a and 43b are lowered from the package T accommodated in the continuous sheet S to a position where only the continuous sheet S can be sandwiched at the elevated position.
  • the continuous sheet S is lowered when the rotary twist unit 4 is raised by lowering the continuous sheet S while holding the continuous sheet S between the first and second twist members 43a and 43b and the package holder 7.
  • the transport unit 3 can be omitted, the structure is simplified.
  • the 1st and 2nd twist members 43a and 43b are set as the structure which can be heat-sealed.
  • the twist wrapping apparatus 1 ⁇ / b> A according to the third embodiment further has a packaging form in which the open portion of the continuous sheet S is heat-sealed.
  • the twist packaging apparatus 1 ⁇ / b> A according to the third embodiment supplies the overlapping portion of the cylindrical continuous sheet S along the supply pipe 21 with a constant pressure.
  • a vertical seal unit 350 (longitudinal seal mechanism) is provided that heats the pipe 21 while being pressed and heat-seals vertically along the longitudinal direction of the continuous sheet S.
  • the vertical seal unit 350 includes a heater block 350a that is heated and pressed against an overlapping portion of the cylindrical continuous sheet S, and a heater support member 350b that supports the heater block 350a.
  • the twist wrapping apparatus 1A is disposed below the transport unit 3A and heat seals the middle of the cylindrical continuous sheet S in the width direction of the continuous sheet S (horizontal seal mechanism).
  • This horizontal seal unit 4A has a configuration corresponding to that of the rotary twist unit 4 of the first embodiment, and heats the cylindrical continuous sheet S horizontally and performs a twisting operation. That is, the first and second twist members 43a and 43b of the first embodiment are provided with heaters to form the first and second horizontal seal members 430a and 430b. Accordingly, the first and second horizontal seal members 430a and 430b are configured such that the surface sandwiching the continuous sheet S is heated to heat seal and twist the cylindrical continuous sheet S.
  • the twist member opening / closing mechanism 5 of the first embodiment is configured as a horizontal seal member opening / closing mechanism.
  • the packaging device 1 ⁇ / b> A is heat-sealed, twisted, and cut by driving and controlling each device by the control device 12.
  • the continuous sheet S is manually unwound from the reel, bent into a U shape by the former 22 and entered between the supply pipe 21 and the former 22, and both ends in the width direction are protruded outward from the slit. Shape it into a cylinder.
  • the continuous sheet S shaped into a cylindrical shape is passed through the transport unit 3A and pulled out to the lower end of the horizontal seal unit 4A, so that the continuous sheet S can be transported.
  • An operation switch (not shown) is turned on, and both ends in the width direction of the continuous sheet S are heat-sealed by the vertical seal unit 350 to form the cylindrical continuous sheet S, and then the conveyance drive motor 34 of the conveyance unit 3A is driven.
  • the continuous sheet S is conveyed to the horizontal seal unit 4A by the endless conveyance belt 31, and the horizontal seal unit 4A is driven to perform horizontal sealing, twisting, and cutting.
  • the cylindrical continuous sheet S is pressed down by the upper pressing portion 41, the articles to be packaged T to be packed next are reliably supplied from above the supply pipe 21 while being vertically aligned, as shown in FIG. 15 (3). As described above, the article to be packaged T waits at the lower part of the supply pipe 21. Further, as shown in FIG. 15 (3), the first and second lateral seal members 430a and 430b advance and are pressed by the upper plate member 41a and the lower plate member 42a to be in a flat state. The cylindrical continuous sheet S is sandwiched and heat sealed.
  • the cylindrical continuous sheet S is held between the first and second horizontal seal members 430a and 430b, and the cutter 91 is advanced as shown in FIG.
  • the intermediate position sandwiched between the first and second horizontal seal members 430a and 430b is cut.
  • the first and second horizontal seal members 430a and 430b are rotated once by the rotation driving unit 6 while holding the cylindrical continuous sheet S cut by 430b.
  • the cylindrical continuous sheet S is twisted at two locations above and below the first and second horizontal seal members 430a and 430b while being sandwiched between the first and second horizontal seal members 430a and 430b.
  • the lower plate-like member 42a of the lower pressing portion 42 is separated from the cylindrical continuous sheet S.
  • the upper plate member 41a of the upper pressing portion 41 is separated from the cylindrical continuous sheet S.
  • the holding plate 71 maintains the cylindrical continuous sheet S wrapped with the package T, and thus the first and second horizontal seal members 430 a and 430 b are rotated. Even if it makes it, the cylindrical continuous sheet S can be twisted reliably, without rotating the part of the cylindrical continuous sheet S which wrapped the to-be-packaged object T.
  • the first and second horizontal seal members 430a and 430b are retracted, and the holding of the sheet by the package holding unit 7 is released. Then, the package P in which the package T is covered with the cut cylindrical sheet falls.
  • the dropped package P has a seal portion and a twist portion at both upper and lower ends.
  • the cylindrical continuous sheet S located in the transport unit 3A is in a state where the lower end portion is closed by heat sealing and twisting, so that even if the upper plate-like member 41a is separated, it waits at the lower portion of the supply pipe 21.
  • the to-be-packaged object T is received by the twisted portion of the cylindrical continuous sheet S and does not fall.
  • the packaging device 1A As described above, according to the packaging device 1A according to the third embodiment, the lower end portion of the cylindrical continuous sheet S is heat-sealed and twisted and closed in the cylindrical continuous sheet S. After supplying the article to be packaged T, the upper part is heat sealed, twisted, and cut, so that a plurality of articles to be packaged T can be reliably sealed and twisted.
  • a predetermined amount of the article T to be packaged is supplied into the cylindrical continuous sheet S above the upper pressing portion 41, and the cylindrical shape is reached. Since the continuous sheet S is heat-sealed and twisted, the bottom end of the cylindrical continuous sheet S is closed by sealing and twisting when the heat-sealing, twisting and cutting of the continuous sheet S are finished and the upper pressing portion 41 is separated. A predetermined amount of the package T can be immediately supplied into the continuous sheet S. As a result, after the cylindrical continuous sheet S is cut, the cylindrical continuous sheet S enclosing the article to be packaged T can be immediately conveyed to the position of the package holder 7 and can be moved to the next sealing / twisting operation.
  • the supply pipe 21 since the lower end of the supply pipe 21 is positioned near the upper pressing portion 41 serving as the inlet of the horizontal seal unit 4A, the supply pipe 21 maintains a cylindrical shape and the next twist wrapping is provided inside the supply pipe 21. It is possible to wait for the packaged goods T for use in an aligned state.
  • the cylindrical continuous sheet S is heat-sealed, twisted and cut in a state where the cylindrical continuous sheet S wrapped with the package T is held by the package holder 7, the package P is a twist with a good appearance. Even if mechanical vibration or the like occurs, it is possible to prevent the package T from being displaced from the cylindrical continuous sheet S.
  • the cylindrical continuous sheet S is heat-sealed by the first and second horizontal seal members 430a and 430b and twisted.
  • the first and second horizontal seal members 430a and 430b are heated. It is also possible to cut the tubular continuous sheet S by twisting it in a state of being held flat. By packaging in this way, a package P having a twisted portion without a horizontal seal portion at the top and bottom is obtained.
  • each of the first and second horizontal seal members 430a and 430b is formed by one block.
  • the first horizontal seal member 44a and the lower first horizontal seal member 45a, and the second horizontal seal member 430b are individually configured as an upper second horizontal seal member 44b and a lower second horizontal seal member 45b, and the upper first A cutter 91 may be disposed between the horizontal seal member 44a and the lower first horizontal seal member 45a.
  • the upper end is only a seal portion without a twist
  • the lower end has a seal portion and a twist portion
  • the lower end is only a seal portion without a twist
  • the upper end is only a twist portion without a seal
  • a package P having only the sealed portion with the upper end portion having no twist and the lower end portion having only the twist portion without seal is also obtained.
  • the package to be packaged by the twist wrapping apparatus of the present invention is not particularly limited.
  • the package to be packaged by the twist wrapping apparatus of the present invention is not particularly limited.
  • solid products such as candy, ramune, rice cake and gummy, kneaded products such as eggplant, and jelly-like products
  • soaps, bathing agents with liquids in film spheres, etc. can be packaged with the twist wrapping device of the present invention as long as they are packaged with a sheet of film or paper. it can. Therefore, according to the twist wrapping apparatus of the present invention, twist wrapping can be performed in a state where the objects to be packaged are vertically aligned as in each of the above embodiments. For example, a large number of small rose foods can be twisted and packaged. You can also
  • the twist packaging apparatus of the present invention can be used as long as it can be sealed with a sheet of thermoplastic film, such as liquid, viscous body, solid-liquid mixture, powder, fluid, and loose food.
  • a sheet of thermoplastic film such as liquid, viscous body, solid-liquid mixture, powder, fluid, and loose food.
  • soup, miso, mayonnaise, eggplant, etc. can be used in the case of liquid, mucilage, and solid-liquid mixing.
  • powders include seasonings, wheat flour, granulated sugar, powdered coffee, and powdered soap. If it is a granule, coffee beans, candy, nuts, bean confectionery, cereals, etc. may be mentioned.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
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Abstract

Provided is a twist packaging device that reliably packages even a plurality of items to be packed and twists them close without the articles to be packed shifting position on a continuous sheet. A twist packaging device 1 comprises a transporting unit 3 that transports a continuous sheet S downward, and a rotating twist mechanism 4 that grabs the middle of the continuous sheet and twists the same. The rotating twist mechanism 4 comprises: twist members 43a, 43b that sandwich the continuous sheet formed into a tube therebetween and make the same flat; a rotating drive unit 6 that rotates the twist members 43a, 43b while the continuous sheet is sandwiched therebetween; a cutter 91 that cuts the continuous sheet sandwiched between the twist members 43a, 43b; and a package holding unit 7 that holds, beneath the twist members 43a, 43b, the continuous sheet S into which the item to be packaged is wrapped.

Description

ひねり包装装置Twist packaging equipment
　本発明は、キャンディなどの被包装物にシートを筒状に巻き付けてシートの端部をひねり加工するひねり包装装置に関するものである。 The present invention relates to a twist packaging apparatus for winding a sheet around a package such as a candy in a cylindrical shape and twisting the end of the sheet.
　従来、この種のひねり包装装置として、横型のひねり包装装置が提案されている。
　例えば、特開２００８－１３７７１６号公報に開示するひねり包装装置は、ホッパから送られてくる被包装物を受け取って水平方向に移送する移送装置と、移送装置の下流側に配置されてリールから繰り出される連続シートを幅方向に湾曲させてＵ字状に整形するフォーマーと、フォーマーの下流側に配置されて連続シートとともに被包装物を掴む多数のチャック部と、チャック部で掴んだ筒状の連続シートを被包装物間にて切断するカッターと、チャック部の水平移動に同期して移動され、カッターにより切断されて被包装物の外周を覆ったシートの開放両端部を摘んでひねる複数のひねり部とを備えている。 Conventionally, as this type of twist packaging apparatus, a horizontal twist packaging apparatus has been proposed.
For example, a twist wrapping device disclosed in Japanese Patent Application Laid-Open No. 2008-137716 is provided with a transfer device that receives an object to be packaged sent from a hopper and transfers it in the horizontal direction, and is arranged on the downstream side of the transfer device and is unwound from a reel. A former that bends the continuous sheet in the width direction and shapes it into a U-shape, a large number of chucks that are arranged on the downstream side of the former and grip the object to be packaged together with the continuous sheets, and a cylindrical continuous that is gripped by the chucks A cutter that cuts the sheet between the objects to be packaged, and a plurality of twists that are moved in synchronization with the horizontal movement of the chuck portion, and that are cut by the cutter and picked and twisted at both open ends of the sheet that covered the outer periphery of the object to be packaged Department.
　上記ひねり包装装置では、被包装物が連続シートに対して常に安定した位置で包装されてひねり加工が行われるようにするために、チャック部により連続シートとともに被包装物を掴んだ状態で水平方向に移動させながら連続シートを切断し、さらに、切断したシートとともに被包装物をチャック部で掴んで水平方向に移動させながらシートの両端部が上下に位置するようにチャック部を回転させて、ひねり部でシートの開放両端部をひねって包装を完了する。 In the twist wrapping apparatus, the packaging object is always packaged in a stable position with respect to the continuous sheet and twisted so that the twisting process is performed. The continuous sheet is cut while moving the sheet, and the chucked part is rotated so that both ends of the sheet are positioned up and down while holding the packaged object together with the cut sheet and moving it horizontally. Twist the open ends of the sheet to complete packaging.
　また、特開２０１１－１３１９１８号公報には、ひねり包装装置として、連続シートを長手方向に熱シールするセンターシール装置と、連続シートを幅方向に熱シールする回転シールブロックとを更に備えるものが開示されている。
　上記ひねり包装装置では、センターシール装置で連続シートを長手方向に熱シールを行い、回転シールブロックにより連続シートを幅方向に切断するとともに熱シールをした後、切断したシートとともに被包装物をチャック部で掴んで水平方向に移動させながら包装シートの両端部が上下に位置するようにチャック部を回転させて、ひねり部でシートの両端部をひねって包装を完了する。 Japanese Patent Application Laid-Open No. 2011-131918 discloses a twist wrapping apparatus further including a center seal device that heat-seals a continuous sheet in the longitudinal direction and a rotary seal block that heat-seals the continuous sheet in the width direction. Has been.
In the twist packaging apparatus, the continuous sheet is heat-sealed in the longitudinal direction by the center seal apparatus, and the continuous sheet is cut in the width direction by the rotary seal block and heat-sealed. Rotate the chuck portion so that both ends of the packaging sheet are positioned up and down while grasping and moving in the horizontal direction, and twist the both ends of the sheet with the twist portion to complete the packaging.
特開２００８－１３７７１６号公報JP 2008-137716 A 特開２０１１－１３１９１８号公報JP 2011-131918 A
　従来のいずれのひねり包装装置でも、連続シートとともに被包装物を掴んだ状態でチャック部を水平方向に移動させ、また回転させて、その後、ひねり部によりひねり加工を行うため、複数の被包装物を連続シートとともに一度にチャック部で掴んでひねり加工をすることが困難であった。 In any conventional twist wrapping device, the chuck part is moved in the horizontal direction with the continuous sheet being gripped together with the continuous sheet, rotated, and then twisted by the twist part. It was difficult to twist and grip the sheet together with the continuous sheet at the chuck portion.
　本発明の目的は、被包装物が連続シートに対して位置ズレすることなく、複数の被包装物でも確実にひねり包装が行えるひねり包装装置を提供することである。また、本発明のもう一つの目的は、複数の被包装物でも確実に熱シールとひねり加工が行えるひねり包装装置を提供することである。 An object of the present invention is to provide a twist wrapping device that can reliably twist and package a plurality of packages without causing the packages to be displaced relative to the continuous sheet. Another object of the present invention is to provide a twist wrapping apparatus that can reliably perform heat sealing and twist processing even on a plurality of packages.
　本発明に係るひねり包装装置は、
　幅方向に湾曲させて筒状に整形された連続シートの長手方向が上下方向となるように配置された途中を掴んでひねる回転ひねり機構と、制御部とを備え、
　上記回転ひねり機構は、
　水平方向に移動可能に対向配置され、筒状の連続シートを挟持して扁平状にするひねり部材と、
　連続シートをひねり部材により押えた状態で、ひねり部材を回転させる回転駆動部と、
　ひねり部材の上下中間位置の内部に水平方向に移動可能に配置され、ひねり部材によって挟持された連続シートを切断するカッターと、
　ひねり部材の下方に配置され、被包装物が包み込まれた連続シートを保持する水平方向に移動可能な包装物保持部とを備える。 The twist wrapping apparatus according to the present invention comprises:
A rotation twist mechanism that grips and twists the middle of the continuous sheet that is curved in the width direction and shaped into a cylindrical shape so that the longitudinal direction is the vertical direction, and a control unit,
The rotating twist mechanism is
A twisting member that is disposed opposite to be movable in the horizontal direction and sandwiches a cylindrical continuous sheet to make it flat;
A rotation drive unit that rotates the twisting member in a state where the continuous sheet is pressed by the twisting member;
A cutter that is arranged so as to be movable in the horizontal direction inside the upper and lower intermediate positions of the twist member, and that cuts the continuous sheet sandwiched by the twist member;
A package holding unit that is disposed below the twisting member and that is movable in the horizontal direction and holds a continuous sheet in which the package is wrapped;
　このような構成により、筒状の連続シートの下端部がひねられて閉鎖された状態で、筒状の連続シートの内部に被包装物を供給しておいて、被包装物が包み込まれた状態で連続シートを下方に搬送して、包装物保持部で被包装物と共に連続シートを保持しながら包装物保持部よりも上方位置で筒状の連続シートをひねり部材で扁平状に押さえ込んで、扁平状の連続シートを挟持することが可能となる。
　さらに、包装物保持部で連続シートを被包装物と共に保持したまま、ひねり部材を回転させることにより、ひねり部材の上方と下方に２箇所のひねり部分を形成することができる。そして、連続シートにおけるひねり部材で挟持している部分をカッターで切断することにより、ひねり部材よりも下方側に、上下両端部にひねり部分を有し、被包装物が筒状シートで覆われた包装物を完成することができ、ひねり部材よりも上方の連続シートは、下端部がひねられて閉鎖状態となって、被包装物の受け入れが可能な状態にできる。
　このように、筒状の連続シートの下端部がひねられて閉鎖された状態で、筒状の連続シートの内部に被包装物を供給した後に、上部がひねられると共に切断されるので、複数の被包装物でも確実にひねり包装を行うことができる。 With such a configuration, with the bottom end of the cylindrical continuous sheet being twisted and closed, the package is supplied inside the cylindrical continuous sheet, and the package is wrapped In this way, the continuous sheet is conveyed downward, and the continuous sheet is held together with the packaged object in the package holding unit, and the cylindrical continuous sheet is pressed flat with a twist member at a position above the package holding unit. It becomes possible to sandwich the continuous sheet.
Furthermore, two twist portions can be formed above and below the twist member by rotating the twist member while holding the continuous sheet together with the package in the package holding portion. Then, by cutting the portion sandwiched by the twisting member in the continuous sheet with a cutter, it has a twisted portion at the upper and lower end portions below the twisting member, and the article to be packaged was covered with the cylindrical sheet The package can be completed, and the continuous sheet above the twist member is twisted at the lower end to be in a closed state so that the package can be received.
In this way, in the state where the lower end portion of the cylindrical continuous sheet is twisted and closed, after the article to be packaged is supplied to the inside of the cylindrical continuous sheet, the upper portion is twisted and cut, so that a plurality of Even a packaged object can be reliably twisted.
　上記回転ひねり機構は、更に、ひねり部材を水平方向に移動させるひねり部材開閉機構を備え、
　上記ひねり部材開閉機構は、
　各ひねり部材が上方に向けて突出するピン部を有し、
　ひねり部材のピン部が嵌め合わされ、両端部が開放される半円の円弧溝を下面に有し、各円弧溝の両端開放部が接続することにより環状溝が形成されるように水平方向に移動可能に配置される１対の板状の開閉部材と、
　開閉部材を水平方向に移動させる駆動機構とを備えることが好ましい。 The rotating twist mechanism further includes a twist member opening / closing mechanism for moving the twist member in the horizontal direction,
The twist member opening / closing mechanism is
Each twist member has a pin portion protruding upward,
It has a semicircular arc groove on the lower surface where the pin part of the twist member is fitted and both ends are open, and it moves horizontally so that an annular groove is formed by connecting the both ends open part of each arc groove A pair of plate-shaped opening and closing members arranged in a possible manner;
It is preferable to include a drive mechanism that moves the opening and closing member in the horizontal direction.
　回転ひねり機構が、このようなひねり部材開閉機構を備えることにより、ひねり部材開閉機構の開閉部材の水平移動によりひねり部材を水平方向に移動させて、ひねり部材間に内部に被包装物を有する筒状の連続シートを通過させ、その後にひねり部材により連続シートを扁平状にすることが可能となる。しかも、開閉部材を互いに接触させて連続した環状溝を形成することにより、この環状溝内にひねり部材のピン部を摺動させることができるので、水平方向に移動する開閉部材がひねり部材の回転の妨げとなることなくひねり部材を良好に回転させることができる。 Since the rotating twist mechanism includes such a twist member opening / closing mechanism, the twist member is moved in the horizontal direction by the horizontal movement of the opening / closing member of the twist member opening / closing mechanism, and a cylinder having an object to be packaged between the twist members. The continuous sheet can be allowed to pass, and then the continuous sheet can be made flat by the twist member. In addition, by forming the continuous annular groove by bringing the opening and closing members into contact with each other, the pin portion of the twisting member can be slid into the annular groove, so that the opening and closing member that moves in the horizontal direction rotates the twisting member. The twist member can be rotated well without hindering the above.
　上記ひねり包装装置は、
　上記回転ひねり機構の上方に配置されて幅方向に湾曲させて筒状に整形された連続シートを下方に向けて搬送する搬送部と、
　筒状に整形された連続シートの内部に配置され、回転ひねり機構の入口近くまで延ばされて被包装物が供給される供給パイプとを更に備え、上記制御部は、
　上記回転ひねり機構のひねり部材及び包装物保持部を移動させて連続シートを保持した後に、回転駆動部によるひねり部材の回転動作と、カッターによる連続シートの切断動作とを行う制御と、ひねり部材よりも上方位置で扁平状態となっている筒状の連続シートの内部へ供給パイプから被包装物を供給する制御と、搬送部により連続シートを搬送する制御とを行うように構成されていることが好ましい。 The twist packaging device
A transport unit that is disposed above the rotating twist mechanism and that is curved in the width direction and is shaped into a cylindrical shape, and transports the continuous sheet downward;
The control unit further includes a supply pipe that is arranged inside the continuous sheet shaped into a cylindrical shape, is extended to near the entrance of the rotary twist mechanism, and is supplied with an article to be packaged.
After moving the twisting member and the package holding part of the rotating twisting mechanism to hold the continuous sheet, the control for performing the rotating operation of the twisting member by the rotation driving part and the cutting operation of the continuous sheet by the cutter, and the twisting member Also, it is configured to perform control for supplying an article to be packaged from a supply pipe to the inside of a cylindrical continuous sheet that is flat at an upper position, and control for conveying the continuous sheet by the conveyance unit. preferable.
　このような構成によれば、制御部による駆動制御で、供給パイプからの被包装物の供給と、供給される被包装物の量に基づく搬送部による連続シートの搬送量と、回転ひねり機構によるひねり及び切断の制御とを行うことにより、自動的に所望の複数の被包装物をまとめてひねり包装をすることができる。
　さらに、供給パイプの下端部が回転ひねり機構の入口近くまで延びているので、連続シートを供給パイプによって筒状を維持すると共に、包装物保持部で被包装物が包み込まれた連続シートを保持した状態で連続シートのひねり加工を行うことができるので、包装物は外観良好なひねり状態にできる。 According to such a configuration, by the drive control by the control unit, the supply of the package from the supply pipe, the conveyance amount of the continuous sheet by the conveyance unit based on the amount of the package to be supplied, and the rotation twist mechanism By performing twisting and cutting control, a desired plurality of packages can be automatically twisted and packaged.
Furthermore, since the lower end portion of the supply pipe extends to the vicinity of the entrance of the rotary twist mechanism, the continuous sheet is maintained in a cylindrical shape by the supply pipe, and the continuous sheet in which the package is wrapped is held by the package holding portion. Since the continuous sheet can be twisted in a state, the package can be twisted with a good appearance.
　上記ひねり包装装置は、
　上記回転ひねり機構全体を上下方向に移動可能とする上下駆動機構を更に備え、
　上記制御部は、
　上記上下駆動機構を駆動して回転ひねり機構全体を下方に移動させながら、ひねり部材及び包装物保持部による連続シートの押え動作、連続シート内への被包装物の供給動作、搬送部による連続シートの搬送動作、ひねり部材と回転駆動部とによるひねり動作、および、連続シートの切断動作を行い、シート切断後に、ひねり部材及び包装物保持部による連続シートの押え動作を解除して、回転ひねり機構全体を上昇させるように上下駆動機構を制御する構成とされていることが好ましい。 The twist packaging device
Further comprising an up-and-down drive mechanism that allows the entire rotating twist mechanism to move in the up-and-down direction;
The control unit
While driving the above-described vertical drive mechanism to move the entire rotary twist mechanism downward, the continuous sheet pressing operation by the twisting member and the package holding unit, the supply operation of the article to be packaged in the continuous sheet, and the continuous sheet by the conveying unit Rotating and twisting mechanism which performs the conveying operation, the twisting operation by the twisting member and the rotation driving unit, and the cutting operation of the continuous sheet, and after the sheet is cut, the pressing operation of the continuous sheet by the twisting member and the package holding unit is released. It is preferable that the vertical drive mechanism is controlled to raise the whole.
　このように上下駆動機構によって回転ひねり機構の全体を上下方向に移動可能にして、連続シートを搬送しながら回転ひねり機構を下降させてひねり加工・切断加工を行うので、連続シートの搬送を間欠的に停止してひねり加工及び切断加工を行うのではなく、連続シートの連続搬送を行いながら、ひねり加工と切断加工とを行うことができ、ひねり包装物の生産を向上できる。 In this way, the entire rotary twist mechanism can be moved in the vertical direction by the vertical drive mechanism, and the rotary twist mechanism is lowered while carrying the continuous sheet to perform twisting / cutting processing. The twisting process and the cutting process can be performed while continuously conveying the continuous sheet, and the production of the twist package can be improved.
　上記ひねり包装装置は、
　上記回転ひねり機構全体を上下方向に移動可能とする上下駆動機構を更に備え、
　上記制御部は、
　上記回転ひねり機構のひねり部材及び包装物保持部を移動させて連続シートを押さえて保持した後に、上記上下駆動機構を駆動して回転ひねり機構全体を下方に移動させながら、連続シート内への被包装物の供給動作、回転駆動部によるひねり部材の回転動作、および、カッターによる連続シートの切断動作を行い、シート切断後に、ひねり部材及び包装物保持部による連続シートの押え動作を解除して、回転ひねり機構全体を上昇させるように上下駆動機構を制御する構成とされていることが好ましい。 The twist packaging device
Further comprising an up-and-down drive mechanism that allows the entire rotating twist mechanism to move in the up-and-down direction;
The control unit
After moving the twisting member of the rotary twisting mechanism and the package holding part to hold and hold the continuous sheet, the vertical drive mechanism is driven to move the entire rotary twisting mechanism downward, while covering the continuous sheet. Supply operation of the package, rotation operation of the twist member by the rotation drive unit, and cutting operation of the continuous sheet by the cutter, after the sheet cutting, release the continuous sheet pressing operation by the twist member and the package holding unit, It is preferable that the vertical drive mechanism is controlled so as to raise the entire rotation twist mechanism.
　このように上下駆動機構によって回転ひねり機構の全体を上下方向に移動可能にすることで、搬送部を設けなくても、又は、搬送部を動作させなくても、ひねり部材及び包装物保持部により連続シートを保持した状態で回転ひねり機構を供給される被包装物の量に基づいて下降動作することによって連続シートを下方に向けて搬送することができる。その結果、搬送部を用いずに連続シートを搬送しながらひねり加工及び切断加工を行うことが可能となる。 In this way, the entire rotary twist mechanism can be moved in the vertical direction by the vertical drive mechanism, so that the twist member and the package holder can be used without providing the transport unit or operating the transport unit. The continuous sheet can be conveyed downward by performing a lowering operation based on the amount of articles to be packaged supplied to the rotary twist mechanism while holding the continuous sheet. As a result, it is possible to perform twisting and cutting while conveying a continuous sheet without using a conveying unit.
　なお、上記ひねり包装装置は、回転ひねり機構のひねり部材が、筒状の連続シートを横方向に熱シールできるように構成されてもよく、この場合、ひねり包装だけでなく、ひねり無しのシール包装や、シールとひねりを行うシール・ひねり包装も可能となる。 The twist wrapping device may be configured such that the twist member of the rotating twist mechanism can heat-seal the cylindrical continuous sheet in the lateral direction. In this case, not only the twist wrap but also the sealed wrap without the twist. In addition, sealing / twisting packaging with sealing and twisting becomes possible.
　また、本発明に係る他の形態のひねり包装装置は、
　幅方向に湾曲させて筒状に整形された連続シートの長手方向が上下方向となるように配置され、この連続シートの幅方向両端部同士を長手方向にシールして筒状連続シートとする縦シール機構と、
　上記縦シール機構の下方に配置され、筒状連続シートの途中を横方向にシールする横シール機構とを備え、
　上記横シール機構は、
　水平方向に移動可能に対向配置され、筒状連続シートを挟持して扁平状にした後に熱シール可能とする横シール部材と、
　上記筒状連続シートを横シール部材により押えた状態で、横シール部材を回転させる回転駆動部と、
　横シール部材の上下中間位置に水平方向に移動可能に配置され、横シール部材によって挟持された筒状連続シートを切断するカッターと、
　横シール部材の下方に配置され、被包装物が包み込まれた筒状連続シートを保持する水平方向に移動可能な包装物保持部とを備える。 Moreover, the twist packaging apparatus of the other form which concerns on this invention is
The continuous sheet that is curved in the width direction and arranged in a cylindrical shape is arranged so that the longitudinal direction is the vertical direction, and both ends in the width direction of the continuous sheet are sealed in the longitudinal direction to form a cylindrical continuous sheet. A sealing mechanism;
A horizontal sealing mechanism that is disposed below the vertical sealing mechanism and seals the middle of the cylindrical continuous sheet in the horizontal direction;
The horizontal sealing mechanism is
A transverse seal member that is arranged to be movable in the horizontal direction and that can be heat-sealed after sandwiching a cylindrical continuous sheet and making it flat;
A rotation drive unit that rotates the horizontal seal member in a state where the cylindrical continuous sheet is pressed by the horizontal seal member;
A cutter that is arranged so as to be movable in the horizontal direction at the upper and lower intermediate positions of the horizontal seal member, and that cuts the cylindrical continuous sheet sandwiched by the horizontal seal member;
A package holding unit that is disposed below the horizontal seal member and that is movable in the horizontal direction and holds a cylindrical continuous sheet in which an article to be wrapped is wrapped;
　このような構成により、筒状連続シートの下端部が熱シールされると共にひねられて閉鎖された状態で筒状連続シートの内部に被包装物を供給して、被包装物よりも上方位置で筒状連続シートを横シール部材で扁平状に挟持し、包装物保持部で筒状連続シートを被包装物と共に保持したまま、熱シールし、切断し、さらに、横シール部材を回転させて横シール部材の上方と下方に２箇所のひねり部分を形成することにより、横シール部材よりも下方側に、上下両端部に熱シール部分及びひねり部分を有し、複数の被包装物をまとめて一度に包装した包装物を完成することができ、横シール部材よりも上方の筒状連続シートは、下端部が熱シールされると共にひねられて閉鎖状態となって、被包装物の受け入れが可能な状態にできる。 With such a configuration, the package is supplied to the inside of the cylindrical continuous sheet in a state where the lower end of the cylindrical continuous sheet is heat-sealed and twisted and closed, at a position above the package. The cylindrical continuous sheet is sandwiched flat by a horizontal seal member, and the cylindrical continuous sheet is held with the packaged object in the package holding part, heat sealed, cut, and further rotated by rotating the horizontal seal member. By forming two twisted parts above and below the seal member, it has a heat seal part and a twist part at the upper and lower ends on the lower side of the horizontal seal member. The cylindrical continuous sheet above the horizontal seal member is heat sealed at the bottom and twisted to be closed so that the package can be received. Can be in a state.
　上記横シール機構は、さらに、横シール部材を水平方向に移動させる横シール部材開閉機構を備え、
　上記横シール部材開閉機構は、
　各横シール部材が、上方に向けて突出するピン部を有し、
　横シール部材のピン部が嵌め合わされ、両端部が開放される半円の円弧溝を下面に有し、各円弧溝の開放部が接続することにより環状溝が形成されるように水平方向に移動可能に配置される１対の板状の開閉部材と、
　開閉部材を水平方向に移動させる駆動機構とを備えることが好ましい。 The horizontal seal mechanism further includes a horizontal seal member opening / closing mechanism for moving the horizontal seal member in the horizontal direction,
The horizontal seal member opening and closing mechanism is
Each lateral seal member has a pin portion protruding upward,
The horizontal seal member has a semicircular arc groove on the lower surface that is fitted with the pin part of the horizontal seal member and is open at both ends, and moves in the horizontal direction so that an annular groove is formed by connecting the open part of each arc groove A pair of plate-shaped opening and closing members arranged in a possible manner;
It is preferable to include a drive mechanism that moves the opening and closing member in the horizontal direction.
　横シール機構をこのように構成することにより、横シール部材開閉機構の開閉部材の水平移動によって横シール部材を水平方向に移動させて内部に被包装物を有する筒状連続シートを通過した後に連続シートを扁平状にして熱シールすることが可能となり、しかも、開閉部材を互いに接触させて連続した環状溝を形成することにより、この環状溝内に横シール部材のピン部を摺動させることにより、水平方向に移動する開閉部材が横シール部材の回転の妨げとなることなく横シール部材を良好に回転させることができる。 By configuring the horizontal seal mechanism in this way, the horizontal seal member is moved horizontally by the horizontal movement of the open / close member of the horizontal seal member open / close mechanism, and continuously after passing through the cylindrical continuous sheet having the packaged item inside. By making the sheet flat and heat-sealing, and by forming a continuous annular groove by bringing the opening and closing members into contact with each other, by sliding the pin portion of the lateral seal member in the annular groove The horizontal seal member can be favorably rotated without the horizontal opening / closing member hindering the rotation of the horizontal seal member.
　上記横シール部材は、個別に動作する上部横シール部材と下部横シール部材とを備え、
　上部横シール部材と下部横シール部材の少なくともどちらか一方は、上記回転駆動部により回転可能とされ、
　上部横シール部材と下部横シール部材との間に上記カッターが配置されていることが好ましい。 The lateral seal member includes an upper lateral seal member and a lower lateral seal member that operate individually,
At least one of the upper horizontal seal member and the lower horizontal seal member can be rotated by the rotation drive unit,
It is preferable that the cutter is disposed between the upper lateral seal member and the lower lateral seal member.
　上部横シール部材と下部横シール部材とを個別に回転動作させることができるので、例えば、包装物の一端部をひねり無しの熱シールのみとし、他端部を熱シールとひねり動作とが行われた意匠性に富んだ包装物が得られる。 Since the upper side seal member and the lower side seal member can be individually rotated, for example, one end of the package is only a heat seal without twisting, and the other end is heat sealed and twisted. A package rich in design can be obtained.
　上記ひねり包装装置は、
　上記筒状連続シートを下方に向けて搬送する搬送部と、
　上記筒状連続シートの内部に配置され、上記横シール機構の入口近くまで延ばされて被包装物が供給される供給パイプと、
　搬送部の駆動、横シール機構の駆動、及び、供給パイプへの被包装物の供給を制御する制御部とを更に備え、
　上記制御部は、横シール機構の横シール部材及び包装物保持部を移動させて筒状連続シートを保持した後に、横シール部材の加熱動作と、回転駆動部による横シール部材の回転動作と、カッターによる筒状連続シートの切断動作とを行う制御を行うと共に、横シール部材よりも上方位置で扁平状態となっている筒状連続シートの内部へ供給パイプから被包装物を供給する制御と、搬送部により筒状連続シートを搬送する制御とを行うように構成されていることが好ましい。 The twist packaging device
A transport unit that transports the cylindrical continuous sheet downward;
A supply pipe which is arranged inside the cylindrical continuous sheet and is extended to near the entrance of the lateral seal mechanism to be supplied with an article to be packaged;
A drive unit for driving the conveyance unit, a drive unit for the lateral seal mechanism, and a control unit for controlling the supply of the packaged material to the supply pipe;
The control unit moves the horizontal seal member and the package holding unit of the horizontal seal mechanism to hold the cylindrical continuous sheet, and then heats the horizontal seal member and rotates the horizontal seal member by the rotation drive unit. A control for performing a cutting operation of the cylindrical continuous sheet by the cutter, and a control for supplying an article to be packaged from the supply pipe to the inside of the cylindrical continuous sheet that is flat at a position higher than the horizontal seal member; It is preferable that the conveyance unit is configured to perform control for conveying the cylindrical continuous sheet.
　このような構成によれば、制御部によって、供給パイプからの被包装物の供給と、供給される被包装物の量に基づく搬送部による筒状連続シートの搬送量と、横シール機構による熱シール、ひねり及び切断とを制御することにより、自動的に所望の複数の被包装物をまとめてシール・ひねり包装をすることができる。
　さらに、供給パイプの下端部が横シール機構の入口近くまで延びているので、筒状連続シートを供給パイプによって筒状を維持すると共に、包装物保持部で被包装物が包み込まれた筒状連続シートを保持した状態で筒状連続シートのひねり動作を行うことができるので、包装物は外観良好なひねり状態にできる。 According to such a configuration, the control unit supplies the article to be packaged from the supply pipe, the conveyance amount of the cylindrical continuous sheet by the conveyance unit based on the amount of the article to be packaged, and the heat by the horizontal seal mechanism. By controlling sealing, twisting and cutting, a desired plurality of packages can be automatically collected and sealed and twisted.
Furthermore, since the lower end portion of the supply pipe extends to the vicinity of the entrance of the horizontal seal mechanism, the cylindrical continuous sheet is maintained in the cylindrical shape by the supply pipe, and the continuous continuous material is wrapped in the package holding portion. Since the cylindrical continuous sheet can be twisted while the sheet is held, the package can be twisted with a good appearance.
　上記ひねり包装装置は、
　上記横シール機構全体を上下方向に移動可能とする上下駆動機構を更に備え、
　上記制御部は、上下駆動機構を駆動して横シール機構全体を下方に移動させながら、横シール部材及び包装物保持部による筒状連続シートの押え動作、筒状連続シート内への被包装物の供給動作、搬送部による筒状連続シートの搬送動作、横シール部材による熱シール動作、横シール部材と回転駆動部とによるひねり動作、および、筒状連続シートの切断動作を行い、シート切断後に、横シール部材及び包装物保持部による筒状連続シートの押え動作を解除して、横シール機構全体を上昇させるように上下駆動機構を制御する構成とされていることが好ましい。 The twist packaging device
A vertical drive mechanism that allows the entire horizontal seal mechanism to move in the vertical direction;
The control unit drives the vertical drive mechanism to move the entire horizontal seal mechanism downward, while pressing the cylindrical continuous sheet by the horizontal seal member and the package holding unit, and the article to be packaged in the cylindrical continuous sheet Supply operation, transport operation of cylindrical continuous sheet by transport section, heat seal operation by horizontal seal member, twist operation by horizontal seal member and rotation drive section, and cutting operation of cylindrical continuous sheet, after sheet cutting It is preferable that the vertical drive mechanism is controlled so as to release the pressing operation of the cylindrical continuous sheet by the horizontal seal member and the package holder and raise the entire horizontal seal mechanism.
　このように上下駆動機構によって横シール機構の全体を上下方向に移動可能にして、連続シートを搬送しながら横シール機構を下降させて熱シール・ひねり・切断をするので、筒状連続シートの搬送を間欠的に停止して熱シール、ひねり及び切断をするのではなく、筒状連続シートを連続搬送を行いながら、熱シール、ひねり及び切断を行うことができ、包装物の生産を向上できる。 In this way, the entire horizontal seal mechanism can be moved in the vertical direction by the vertical drive mechanism, and the horizontal seal mechanism is lowered while carrying the continuous sheet to perform heat sealing, twisting, and cutting. The heat sealing, twisting and cutting can be performed while continuously transporting the cylindrical continuous sheet, and the production of the package can be improved.
　本発明に係るひねり包装装置によれば、筒状の連続シートの下端部がひねられて閉鎖された状態で、被包装物を筒状の連続シートの内部に供給して連続シートの上部のひねり加工と切断加工を行うので、複数の被包装物をまとめて確実にひねり包装を行うことができる。
　また、本発明に係る他の形態のひねり包装装置によれば、筒状連続シートの下端部が熱シールされると共にひねられて閉鎖された状態で、被包装物を筒状連続シートの内部に供給して被包装物よりも上方の筒状連続シートを熱シール、ひねり及び切断することができるので、複数の被包装物をまとめて一度に確実にシール・ひねり包装を行うことができる。 According to the twist wrapping apparatus of the present invention, with the bottom end of the cylindrical continuous sheet being twisted and closed, the article to be packaged is supplied to the inside of the cylindrical continuous sheet to twist the upper part of the continuous sheet. Since the processing and the cutting process are performed, a plurality of items to be packaged can be twisted and packaged reliably.
Moreover, according to the twist packaging apparatus of the other form which concerns on this invention, in the state where the lower end part of the cylindrical continuous sheet was heat-sealed and twisted and closed, a packaged article was put inside the cylindrical continuous sheet. Since the cylindrical continuous sheet that is supplied and above the package can be heat-sealed, twisted, and cut, a plurality of packages can be sealed and twist-wrapped reliably at a time.
本発明の実施形態１に係るひねり包装装置の全体正面図である。It is a whole front view of the twist packaging apparatus which concerns on Embodiment 1 of this invention. 本発明の実施形態１に係るひねり包装装置の全体側面図である。It is a whole side view of the twist packaging apparatus which concerns on Embodiment 1 of this invention. 本発明の実施形態１に係るひねり包装装置の回転ひねりユニットを示す斜視図である。It is a perspective view which shows the rotation twist unit of the twist packaging apparatus which concerns on Embodiment 1 of this invention. 本発明の実施形態１に係るひねり包装装置の回転ひねりユニットの一部を示す部分斜視図である。It is a fragmentary perspective view which shows a part of rotation twist unit of the twist packaging apparatus which concerns on Embodiment 1 of this invention. 本発明の実施形態１に係るひねり包装装置の回転ひねりユニットの要部断面図であって、第１及び第２ひねり部材が離反した状態を示す。It is principal part sectional drawing of the rotation twist unit of the twist packaging apparatus which concerns on Embodiment 1 of this invention, Comprising: The state which the 1st and 2nd twist member separated is shown. 本発明の実施形態１に係るひねり包装装置の回転ひねりユニットにおける要部断面図であって、第１及び第２ひねり部材が閉じた状態を示す。It is principal part sectional drawing in the rotation twist unit of the twist packaging apparatus which concerns on Embodiment 1 of this invention, Comprising: The state which the 1st and 2nd twist member closed is shown. 本発明の実施形態１に係るひねり包装装置の回転ひねりユニットにおける包装物保持部の構成部品の斜視図である。It is a perspective view of the component of the package holding | maintenance part in the rotation twist unit of the twist packaging apparatus which concerns on Embodiment 1 of this invention. 本発明の実施形態１に係るひねり包装装置の回転ひねりユニットにおける包装物保持部の下部側面図である。It is a lower part side view of the package holding part in the rotation twist unit of the twist packaging apparatus which concerns on Embodiment 1 of this invention. 本発明の実施形態１に係るひねり包装装置の回転ひねりユニットにおける包装物保持部の動きを説明するための説明図であって、図９（Ａ）は、保持プレートが開いた状態を示し、図９（Ｂ）は、保持プレートが閉じた状態を示す。It is explanatory drawing for demonstrating the motion of the package holding | maintenance part in the rotation twist unit of the twist packaging apparatus which concerns on Embodiment 1 of this invention, Comprising: FIG. 9 (A) shows the state which the holding plate opened, 9 (B) shows a state in which the holding plate is closed. 本発明の実施形態１に係るひねり包装装置による間欠ひねり及び切断動作の工程を説明するための工程図である。It is process drawing for demonstrating the process of the intermittent twist by the twist packaging apparatus which concerns on Embodiment 1 of this invention, and cutting | disconnection operation | movement. 本発明の実施形態１に係るひねり包装装置による連続ひねり及び切断動作の工程を説明するための工程図である。It is process drawing for demonstrating the process of the continuous twist by the twist packaging apparatus which concerns on Embodiment 1 of this invention, and a cutting operation. 本発明の実施形態２に係るひねり包装装置によるひねり及び切断動作の工程を説明するための工程図である。It is process drawing for demonstrating the process of the twist by the twist packaging apparatus which concerns on Embodiment 2 of this invention, and a cutting | disconnection operation | movement. 本発明の実施形態３に係るひねり包装装置の全体正面図である。It is a whole front view of the twist packaging apparatus which concerns on Embodiment 3 of this invention. 本発明の実施形態３に係るひねり包装装置の全体側面図である。It is a whole side view of the twist packaging apparatus which concerns on Embodiment 3 of this invention. 本発明の実施形態３に係るひねり包装装置によるシール、ひねり及び切断動作の工程を説明するための工程図である。It is process drawing for demonstrating the process of the seal | sticker, twist, and cutting | disconnection operation | movement by the twist packaging apparatus which concerns on Embodiment 3 of this invention. 本発明の実施形態３に係るひねり包装装置の変形例として一方のみのひねり動作を行う場合を説明するための工程図である。It is process drawing for demonstrating the case where only one twist operation | movement is performed as a modification of the twist packaging apparatus which concerns on Embodiment 3 of this invention. 本発明の実施形態３に係るひねり包装装置の変形例としてひねり動作を行わない場合（熱シールのみ）を説明するための工程図である。It is process drawing for demonstrating the case where only a twist operation | movement is not performed (only heat sealing) as a modification of the twist packaging apparatus which concerns on Embodiment 3 of this invention.
［実施形態１］
　実施形態１のひねり包装装置１は、図１、図２に示すように、被包装物Ｔを供給するための供給パイプ２１及び図示しないリールから繰り出される連続シートＳを筒状に整形するためのフォーマー２２を備えるフォーマーユニット２と、筒状に整形された連続シートＳを下方に向けて搬送するための搬送ユニット３（搬送部）と、筒状に整形された連続シートＳを扁平状にして回転ひねりを行うための回転ひねりユニット４（回転ひねり機構）と、本ひねり包装装置１の動作を制御するための制御装置１２(制御部)と、各ユニットを内装するケーシング１１とを備える。 [Embodiment 1]
As shown in FIGS. 1 and 2, the twist wrapping apparatus 1 of Embodiment 1 is for forming a continuous sheet S fed from a supply pipe 21 for supplying an article to be packaged T and a reel (not shown) into a cylindrical shape. The former unit 2 including the former 22, the conveying unit 3 (conveying unit) for conveying the continuous sheet S shaped in a cylindrical shape downward, and the continuous sheet S shaped in a cylindrical shape are made flat. A rotary twist unit 4 (rotary twist mechanism) for rotating and twisting, a control device 12 (control unit) for controlling the operation of the present twist packaging apparatus 1, and a casing 11 in which each unit is housed.
　ひねり包装装置１のケーシング１１は、フォーマーユニット２、搬送ユニット３及び回転ひねりユニット４を所定の位置に固定するために、上部フレーム１１ａ、下部フレーム１１ｂ、中間フレーム１１ｃ、水平補強フレーム１１ｄ、縦フレーム１１ｅ、垂直補強フレーム１１ｆ、天板１１ｇ、底板１１ｈ、そして、中板１１ｉを備える。 The casing 11 of the twist wrapping apparatus 1 includes an upper frame 11a, a lower frame 11b, an intermediate frame 11c, a horizontal reinforcing frame 11d, a vertical reinforcement frame, in order to fix the former unit 2, the transport unit 3 and the rotary twist unit 4 at predetermined positions. A frame 11e, a vertical reinforcing frame 11f, a top plate 11g, a bottom plate 11h, and an intermediate plate 11i are provided.
　矩形の底板１１ｈには、４つの角部に４本の縦フレーム１１ｅが固定されると共に縁部に沿って水平に配置される３本の下部フレーム１１ｂが固定されている。縦フレーム１１ｅの下端は下部フレーム１１ｂの端部に固定されている。また、正面が開放されるように４本の縦フレーム１１ｅの上端には水平に配置される３本の上部フレーム１１ａが、上下中間部には水平に配置される３本の中間フレーム１１ｃが固定されている。さらに、対向配置される２本の中間フレーム１１ｃの中間部には、中間フレーム１１ｃ同士を連結するように水平補強フレーム１１ｄが固定されている。また、対向配置される２本の中間フレーム１１ｃの水平補強フレーム１１ｄが固定される位置には、下部フレーム１１ｂと中間フレーム１１ｃとを連結する垂直補強フレーム１１ｆが固定されている。そして、上部フレーム１１ａに矩形の天板１１ｇが固定され、中間フレーム１１ｃと水平補強フレーム１１ｄとに矩形の中板１１ｉが固定される。 Four vertical frames 11e are fixed to four corners and three lower frames 11b arranged horizontally along the edge are fixed to the rectangular bottom plate 11h. The lower end of the vertical frame 11e is fixed to the end of the lower frame 11b. In addition, three upper frames 11a arranged horizontally are fixed to the upper ends of the four vertical frames 11e so that the front is opened, and three intermediate frames 11c arranged horizontally are fixed to the upper and lower intermediate portions. Has been. Further, a horizontal reinforcing frame 11d is fixed to an intermediate portion of the two intermediate frames 11c arranged to face each other so as to connect the intermediate frames 11c to each other. In addition, a vertical reinforcing frame 11f that connects the lower frame 11b and the intermediate frame 11c is fixed at a position where the horizontal reinforcing frame 11d of the two intermediate frames 11c arranged opposite to each other is fixed. A rectangular top plate 11g is fixed to the upper frame 11a, and a rectangular middle plate 11i is fixed to the intermediate frame 11c and the horizontal reinforcing frame 11d.
　また、上部フレーム１１ａには、図示しないリールから繰り出される連続シートＳをフォーマー２２へと案内するガイドローラ１１ｊが固定されている。また、図１に示すように、縦フレーム１１ｅの一方の側部には、各ユニットの動作を制御するための制御装置１２が取り付けられている。 Further, a guide roller 11j for guiding the continuous sheet S fed from a reel (not shown) to the former 22 is fixed to the upper frame 11a. Moreover, as shown in FIG. 1, the control apparatus 12 for controlling operation | movement of each unit is attached to one side part of the vertical frame 11e.
（フォーマーユニット）
　フォーマーユニット２は、図１及び図２に示すように、上下に延びる供給パイプ２１と、供給パイプ２１が内部に挿通された状態で配置されるフォーマー２２とを備える。供給パイプ２１には、連続シートＳで包まれる被包装物Ｔが供給される。フォーマー２２は、連続シートＳをＵ字状に湾曲させて筒状に整形するために用いられる。 (Former unit)
As shown in FIGS. 1 and 2, the former unit 2 includes a supply pipe 21 that extends vertically, and a former 22 that is disposed with the supply pipe 21 inserted through the former. The supply pipe 21 is supplied with an article T to be wrapped that is wrapped with a continuous sheet S. The former 22 is used for bending the continuous sheet S into a U shape and shaping it into a cylindrical shape.
　フォーマーユニット２は、供給パイプ２１及びフォーマー２２を支持するための支持部材を備えている。この支持部材は、上部支持板２３、上部支持軸２４、下部支持板２５及び下部支持軸２６により構成されている。長尺板状の上部支持板２３は、上下に延びる４本の上部支持軸２４を介して下部支持板２５に固定されている。下部支持板２５は、中間フレーム１１ｃに掛け渡される長さを有する長尺板状に形成され、図２に示すように、４本の下部支持軸２６を介して中間フレーム１１ｃに支持されている。 The former unit 2 includes a support member for supporting the supply pipe 21 and the former 22. The support member includes an upper support plate 23, an upper support shaft 24, a lower support plate 25, and a lower support shaft 26. The long plate-like upper support plate 23 is fixed to the lower support plate 25 via four upper support shafts 24 extending vertically. The lower support plate 25 is formed in a long plate shape having a length spanned over the intermediate frame 11c, and is supported by the intermediate frame 11c via four lower support shafts 26 as shown in FIG. .
　供給パイプ２１は、上端近くに上部フランジ部２１ａを有し、回転ひねりユニット４の上部押さえ部４１の近くまで延びる長さを有する。供給パイプ２１は、図１及び図２に示すように、上部支持板２３、上部支持軸２４、下部支持板２５及び下部支持軸２６を介して中間フレーム１１ｃに支持されている。上部支持板２３の長手方向中間部及び下部支持板２５の長手方向中間部には、供給パイプ２１を挿通する穴が形成されており、供給パイプ２１の上部フランジ部２１ａを上部支持板２３に載せてボルトにより固定することにより供給パイプ２１が上部支持板２３に固定される。下部支持板２５に形成する穴は、供給パイプ２１の外周面に沿わす連続シートＳも挿通可能な大きさに形成されている。 The supply pipe 21 has an upper flange portion 21 a near the upper end, and has a length that extends to the vicinity of the upper pressing portion 41 of the rotary twist unit 4. As shown in FIGS. 1 and 2, the supply pipe 21 is supported by the intermediate frame 11 c via an upper support plate 23, an upper support shaft 24, a lower support plate 25, and a lower support shaft 26. A hole through which the supply pipe 21 is inserted is formed in the longitudinal intermediate portion of the upper support plate 23 and the longitudinal support intermediate portion of the lower support plate 25, and the upper flange portion 21 a of the supply pipe 21 is placed on the upper support plate 23. The supply pipe 21 is fixed to the upper support plate 23 by fixing with a bolt. The hole formed in the lower support plate 25 is formed in such a size that the continuous sheet S along the outer peripheral surface of the supply pipe 21 can be inserted.
　フォーマー２２は、上部先端が斜めに傾斜し、下端に下部フランジ部２２ａを有する筒状に形成されている。下部支持板２５の穴の周囲にフォーマー２２の下部フランジ部２２ａを固定し、フォーマー２２内に供給パイプ２１を挿通している。フォーマー２２の内面と供給パイプ２１の外面との間には、連続シートＳが搬送可能に挿通できる隙間が形成される。 The former 22 is formed in a cylindrical shape having an upper end inclined obliquely and a lower flange portion 22a at the lower end. The lower flange portion 22 a of the former 22 is fixed around the hole of the lower support plate 25, and the supply pipe 21 is inserted into the former 22. A gap is formed between the inner surface of the former 22 and the outer surface of the supply pipe 21 so that the continuous sheet S can be conveyed.
　図示しないリールから繰り出されてガイドローラ１１ｊによって案内されてきた連続シートＳは、図２に示すように、フォーマー２２の先端から供給パイプ２１の外周面に沿うように湾曲させてフォーマー２２と供給パイプ２１との間に挿入される。連続シートＳがフォーマー２２を通過することにより、図１に示すように、連続シートＳの幅方向両端部が重なり合った状態で、連続シートＳが筒状に整形される。その結果、供給パイプ２１は、筒状に整形された連続シートＳの内部に配置された状態となり、供給パイプ２１から筒状の連続シートＳ内に被包装物を供給し易くなる。さらに、供給パイプ２１の下端部が回転ひねりユニット４の入口近くまで延びているので、連続シートＳは供給パイプ２１によって筒状が維持されて、供給パイプ２１内の下端部において被包装物Ｔを待機させておくことができるので、後述する包装物保持部７により被包装物Ｔが包み込まれた連続シートＳを外観良好な状態で保持して連続シートＳのひねり加工を行うことができ、その結果、外観が良好な包装物Ｐを得られる。 As shown in FIG. 2, the continuous sheet S fed out from a reel (not shown) and guided by a guide roller 11j is bent from the front end of the former 22 along the outer peripheral surface of the supply pipe 21 to form the former 22 and the supply pipe. 21. As the continuous sheet S passes through the former 22, as shown in FIG. 1, the continuous sheet S is shaped into a cylindrical shape with both end portions in the width direction overlapping each other. As a result, the supply pipe 21 is disposed inside the continuous sheet S shaped into a cylindrical shape, and it becomes easy to supply an article to be packaged into the cylindrical continuous sheet S from the supply pipe 21. Further, since the lower end portion of the supply pipe 21 extends to the vicinity of the entrance of the rotary twist unit 4, the continuous sheet S is maintained in a cylindrical shape by the supply pipe 21, and the package T is placed at the lower end portion in the supply pipe 21. Since it can be kept waiting, the continuous sheet S in which the package T is wrapped by the package holding unit 7 to be described later can be held in a good appearance, and the continuous sheet S can be twisted. As a result, a package P having a good appearance can be obtained.
（搬送ユニット）
　本願発明の搬送部となる搬送ユニット３は、図１及び図２に示すように、フォーマーユニット２の下方に配置されている。搬送ユニット３は、供給パイプ２１を挟むようにして、供給パイプ２１と平行して配置される１対の無端搬送ベルト３１を備える。無端搬送ベルト３１は、供給パイプ２１の外面に沿う筒状の連続シートＳを供給パイプ２１に押し付けながら下方に向けて搬送する。無端搬送ベルト３１は、駆動プーリー３２と従動プーリー３３に掛け回された歯付ベルトで形成されている。無端搬送ベルト３１は、図示していないが、外周には連続シートＳを供給パイプ２１に向けて押圧する押圧突起が隆起している。 (Transport unit)
As shown in FIGS. 1 and 2, the transport unit 3 serving as a transport unit of the present invention is disposed below the former unit 2. The transport unit 3 includes a pair of endless transport belts 31 arranged in parallel with the supply pipe 21 so as to sandwich the supply pipe 21. The endless transport belt 31 transports the cylindrical continuous sheet S along the outer surface of the supply pipe 21 downward while pressing the continuous sheet S against the supply pipe 21. The endless conveyance belt 31 is formed of a toothed belt that is wound around a driving pulley 32 and a driven pulley 33. Although the endless conveyance belt 31 is not illustrated, a pressing protrusion that presses the continuous sheet S toward the supply pipe 21 is raised on the outer periphery.
　各駆動プーリー３２は、図２に示すように、それぞれ個別に設けた搬送用駆動モータ３４で回転駆動される。一対の無端搬送ベルト３１、駆動プーリー３２、従動プーリー３３及び搬送用駆動モータ３４が上下方向に延びる長尺なベルト取付け板３５に支持される。１対のベルト取付け板３５は、図１に示すように、上下２本のガイドバー３６に水平方向に移動可能に支持されている。２本のガイドバー３６は、図１及び図２に示すように、１対のサイドプレート３７に両端が固定され、サイドプレート３７は、後部のベースプレート３８に固定されている。ベースプレート３８は、中板１１ｉの端部と連結するように、水平補強フレーム１１ｄ及び垂直補強フレーム１１ｆに固定される。さらに、各サイドプレート３７には、ベルト取付け板３５を水平方向に移動させるベルト移動用エアシリンダ３９が取り付けられている。 As shown in FIG. 2, each drive pulley 32 is rotationally driven by a conveyance drive motor 34 provided individually. A pair of endless conveyance belts 31, a drive pulley 32, a driven pulley 33, and a conveyance drive motor 34 are supported by a long belt attachment plate 35 extending in the vertical direction. As shown in FIG. 1, the pair of belt attachment plates 35 are supported by two upper and lower guide bars 36 so as to be movable in the horizontal direction. As shown in FIGS. 1 and 2, the two guide bars 36 are fixed at both ends to a pair of side plates 37, and the side plates 37 are fixed to a rear base plate 38. The base plate 38 is fixed to the horizontal reinforcing frame 11d and the vertical reinforcing frame 11f so as to be connected to the end of the middle plate 11i. Further, a belt moving air cylinder 39 for moving the belt attaching plate 35 in the horizontal direction is attached to each side plate 37.
　本実施形態に係る搬送ユニット３は、供給パイプ２１を上部押さえ部４１の近くまで延ばして、無端搬送ベルト３１を供給パイプ２１の外面を受け面として連続シートＳに圧接させて搬送するようにしているので、供給パイプ２１がガイドとなって確実に筒状の連続シートＳを下方に向けて搬送でき、しかも、供給パイプ２１から確実に筒状の連続シートＳの内部に被包装物Ｔを供給することができる。 The conveyance unit 3 according to the present embodiment extends the supply pipe 21 to the vicinity of the upper pressing portion 41 and conveys the endless conveyance belt 31 while pressing the continuous sheet S with the outer surface of the supply pipe 21 as a receiving surface. Therefore, the supply pipe 21 can serve as a guide to reliably convey the cylindrical continuous sheet S downward, and the supply object T can be reliably supplied from the supply pipe 21 to the inside of the cylindrical continuous sheet S. can do.
（回転ひねりユニット）
　本願発明の回転ひねり機構となる回転ひねりユニット４は、図１及び図２に示すように、搬送ユニット３の下方に配置され、連続シートＳの途中を掴んでひねる動作行う。回転ひねりユニット４は、図３から図５に示すように、筒状に整形された連続シートＳを扁平状に押さえる１対の上部押さえ部４１、上部押さえ部４１の下方に配置されて筒状に整形された連続シートＳを扁平状に押さえる１対の下部押さえ部４２、上部押さえ部４１と下部押さえ部４２との間に配置され扁平状の連続シートＳを挟持する第１ひねり部材４３ａ及び第２ひねり部材４３ｂを備える。 (Rotating twist unit)
As shown in FIGS. 1 and 2, the rotary twist unit 4 serving as the rotary twist mechanism of the present invention is disposed below the transport unit 3 and performs an operation of grasping and twisting the middle of the continuous sheet S. As shown in FIG. 3 to FIG. 5, the rotary twist unit 4 is arranged in a cylindrical shape by being disposed below a pair of upper pressing parts 41 and a pair of upper pressing parts 41 that press the cylindrical continuous sheet S flatly. A pair of lower pressing portions 42 that press the continuous sheet S shaped into a flat shape, a first twist member 43a that is disposed between the upper pressing portion 41 and the lower pressing portion 42 and sandwiches the flat continuous sheet S, and A second twist member 43b is provided.
　さらに、回転ひねりユニット４は、第１及び第２ひねり部材４３ａ，４３ｂを水平方向に開閉させるひねり部材開閉機構５、連続シートＳを挟持している第１及び第２ひねり部材４３ａ，４３ｂを回転させる回転駆動部６、下部押さえ部４２の下方に配置され、被包装物Ｔが包み込まれた連続シートＳを保持する包装物保持部７、そして、回転ひねりユニット４の各機器を支持する支持フレーム８を備える。 Further, the rotary twist unit 4 rotates the twist member opening / closing mechanism 5 that opens and closes the first and second twist members 43a and 43b in the horizontal direction, and the first and second twist members 43a and 43b that sandwich the continuous sheet S. The rotating drive unit 6 to be moved, the lower holding unit 42, and a support frame for supporting each device of the package holding unit 7 that holds the continuous sheet S in which the package T is wrapped, and the rotary twist unit 4. 8 is provided.
（支持フレーム）
　支持フレーム８は、図３から図５に示すように、長尺な１対の長尺支持フレーム８１と、それぞれの長尺支持フレーム８１の一端部と中間部に固定される２本の短尺支持フレーム８２と、回転駆動部６及び包装物保持部７を支持するためのリング状のベースフレーム８３とを備える。ベースフレーム８３は、長尺支持フレーム８１及び短尺支持フレーム８２の下端部に固定される。 (Support frame)
As shown in FIGS. 3 to 5, the support frame 8 includes a pair of long support frames 81 and two short supports fixed to one end portion and an intermediate portion of each long support frame 81. A frame 82 and a ring-shaped base frame 83 for supporting the rotation driving unit 6 and the package holding unit 7 are provided. The base frame 83 is fixed to the lower ends of the long support frame 81 and the short support frame 82.
　長尺支持フレーム８１と短尺支持フレーム８２とで囲まれるスペース内に上部押さえ部４１、下部押さえ部４２、第１及び第２ひねり部材４３ａ，４３ｂ、ひねり部材開閉機構５の一部、回転駆動部６、そして、包装物保持部７が配置される。また、長尺支持フレーム８１には、ひねり部材開閉機構５を構成する部材が支持される。 In the space surrounded by the long support frame 81 and the short support frame 82, there are an upper pressing portion 41, a lower pressing portion 42, first and second twist members 43a and 43b, a part of the twist member opening / closing mechanism 5, and a rotation drive portion. 6 And the package holding part 7 is arrange | positioned. Further, the long support frame 81 supports members constituting the twist member opening / closing mechanism 5.
　支持フレーム８は、長尺支持フレーム８１の中間部において、リニアブッシュ８４を介して２本の支持軸８５に支持されている。支持軸８５の上端部は、図２に示すように、搬送ユニット３を支持するベースプレート３８に固定され、下端部は底板１１ｈに固定されている。 The support frame 8 is supported by two support shafts 85 via linear bushes 84 at an intermediate portion of the long support frame 81. As shown in FIG. 2, the upper end portion of the support shaft 85 is fixed to the base plate 38 that supports the transport unit 3, and the lower end portion is fixed to the bottom plate 11h.
（上下駆動ユニット）
　さらに、本実施形態１のひねり包装装置１は、回転ひねりユニット４全体を上下動させる上下駆動ユニット１０（上下駆動機構）を備える。上下駆動ユニット１０は、図１及び図２に示すように、上下駆動用ベルト１０ａ、上下駆動用ベルト１０ａが掛け渡される下方の駆動プーリー１０ｂ及び上方の従動プーリー１０ｃ、そして、駆動用モータ１０ｄを備える。従動プーリー１０ｃは、ケーシング１１の中板１１ｉの下面に回転可能に支持されている。また、駆動プーリー１０ｂ及び駆動用モータ１０ｄは図示しない支持板を介して垂直補強フレーム１１ｆ及び縦フレーム１１ｅに支持されている。 (Vertical drive unit)
Furthermore, the twist wrapping apparatus 1 of the first embodiment includes a vertical drive unit 10 (vertical drive mechanism) that moves the entire rotary twist unit 4 up and down. As shown in FIGS. 1 and 2, the vertical drive unit 10 includes a vertical drive belt 10a, a lower drive pulley 10b around which the vertical drive belt 10a is stretched, an upper driven pulley 10c, and a drive motor 10d. Prepare. The driven pulley 10 c is rotatably supported on the lower surface of the middle plate 11 i of the casing 11. The driving pulley 10b and the driving motor 10d are supported by the vertical reinforcing frame 11f and the vertical frame 11e via a support plate (not shown).
　リニアブッシュ８４に、上下駆動ユニット１０の上下駆動用ベルト１０ａが連結され、上下駆動用ベルト１０ａの上下方向の移動によりリニアブッシュ８４を介して、支持フレーム８が支持軸８５に対して上下動するようになっている。そして、上下駆動ユニット１０によって支持フレーム８を上下動させることにより回転ひねりユニット４全体が上下動する。 The vertical bushing 10a of the vertical drive unit 10 is connected to the linear bushing 84, and the support frame 8 moves up and down with respect to the support shaft 85 via the linear bushing 84 by the vertical movement of the vertical drive belt 10a. It is like that. Then, when the support frame 8 is moved up and down by the vertical drive unit 10, the entire rotary twist unit 4 is moved up and down.
（上部押さえ部）
　回転ひねりユニット４の１対の上部押さえ部４１は、図３及び図５に示すように、それぞれ断面Ｌ字状の上部板状部材４１ａと、上部板状部材４１ａの垂直壁が固定されて上部板状部材４１ａを水平方向に移動させる上部エアシリンダ４１ｂとを備える。上部エアシリンダ４１ｂはＬ字ブラケット４１ｃを介して短尺支持フレーム８２の外面に固定される。上部板状部材４１ａは、それぞれ対向する先端部が先細り状に形成されている。上部エアシリンダ４１ｂの駆動により、これら先細り状の先端部で筒状に整形された連続シートＳを扁平状になるように押さえ付ける。 (Upper holding part)
As shown in FIGS. 3 and 5, the pair of upper pressing portions 41 of the rotating twist unit 4 is an upper plate member 41 a having an L-shaped cross section and a vertical wall of the upper plate member 41 a fixed to each other. And an upper air cylinder 41b for moving the plate-like member 41a in the horizontal direction. The upper air cylinder 41b is fixed to the outer surface of the short support frame 82 via an L-shaped bracket 41c. The upper plate-like member 41a is formed with a tapered tip portion facing each other. By driving the upper air cylinder 41b, the continuous sheet S shaped into a cylindrical shape at the tapered tip is pressed down into a flat shape.
（下部押さえ部）
　１対の下部押さえ部４２は、図５に示すように、上部押さえ部４１の下方に配置される。下部押さえ部４２は、水平方向に移動可能に対向配置される下部板状部材４２ａと、連続シートＳを挟持する方向に下部板状部材４２ａを水平移動させるための下部エアシリンダ４２ｂとを備える。下部エアシリンダ４２ｂは、短尺支持フレーム８２に固定されている板状のシリンダ取付ブラケット４２ｃに固定されている。また、下部板状部材４２ａの下面には、下方に突出するピン部４２ｄが形成されている。下部エアシリンダ４２ｂのピストンロッドの先端部には、下部板状部材４２ａのピン部４２ｄを押圧するためのシリンダプッシャー４２ｅが固定され、下部エアシリンダ４２ｂの駆動によりシリンダプッシャー４２ｅを介してピン部４２ｄが押されるように構成されている。 (Lower holding part)
As shown in FIG. 5, the pair of lower pressing portions 42 is disposed below the upper pressing portion 41. The lower pressing portion 42 includes a lower plate-like member 42a that is opposed to be movable in the horizontal direction, and a lower air cylinder 42b that horizontally moves the lower plate-like member 42a in a direction to sandwich the continuous sheet S. The lower air cylinder 42b is fixed to a plate-like cylinder mounting bracket 42c fixed to the short support frame 82. Further, a pin portion 42d protruding downward is formed on the lower surface of the lower plate-like member 42a. A cylinder pusher 42e for pressing the pin portion 42d of the lower plate-like member 42a is fixed to the tip of the piston rod of the lower air cylinder 42b, and the pin portion 42d is driven via the cylinder pusher 42e by driving the lower air cylinder 42b. Is configured to be pressed.
　下部板状部材４２ａは、対向する先端部の板厚が薄くなっており、これら薄板の先端部で筒状に整形された連続シートＳを扁平状になるように押さえ付ける。なお、筒状の連続シートＳを上下同時に押さえつけて扁平にするために、上部板状部材４１ａと下部板状部材４２ａの先端の位置は上下方向で同一の位置になっている。 The lower plate-like member 42a has a thin plate thickness at the opposed tip portions, and presses the continuous sheet S shaped into a cylindrical shape at the tip portions of these thin plates so as to be flat. In addition, in order to press the cylindrical continuous sheet S up and down at the same time and make it flat, the positions of the tips of the upper plate member 41a and the lower plate member 42a are the same in the vertical direction.
　また、下部板状部材４２ａは、後述する回転駆動部６を構成する大平歯車６１の上面に、図示しない圧縮ばねを介して大平歯車６１の中心から遠ざかる方向に付勢された状態で水平移動可能に支持されている。各下部板状部材４２ａは、下部エアシリンダ４２ｂの駆動により、シリンダプッシャー４２ｅを介してピン部４２ｄが押されると、筒状の連続シートＳを押し合うように、圧縮ばねに抗して中心に向けて水平移動する。そして、回転駆動部６の大平歯車６１が回転する際に、下部エアシリンダ４２ｂのピストンを後退させると、対向する下部板状部材４２ａは、圧縮ばねの回復により後退して、連続シートＳから離れる。なお、大平歯車６１には、図５に示すように、ピン部４２ｄが移動可能な長穴６２が形成されている。上部押さえ部４１と下部押さえ部４２とにより、第１及び第２ひねり部材４３ａ，４３ｂで筒状の連続シートＳを挟持する前に確実に連続シートＳを扁平状にしておくことができるので、第１及び第２ひねり部材４３ａ，４３ｂによる連続シートＳの挟持を確実に安定して行える。なお、上部押さえ部４１も下部押さえ部４２も、無くても差し支えない。 Further, the lower plate member 42a is horizontally movable in a state of being biased in a direction away from the center of the large spur gear 61 via a compression spring (not shown) on the upper surface of the large spur gear 61 constituting the rotation drive unit 6 described later. It is supported by. Each lower plate-like member 42a is centered against the compression spring so that when the pin portion 42d is pushed through the cylinder pusher 42e by driving the lower air cylinder 42b, the cylindrical continuous sheet S is pressed against each other. Move horizontally toward. When the large spur gear 61 of the rotation drive unit 6 rotates, when the piston of the lower air cylinder 42b is retracted, the opposed lower plate member 42a is retracted by the recovery of the compression spring and is separated from the continuous sheet S. . The large spur gear 61 is formed with a long hole 62 through which the pin portion 42d can move, as shown in FIG. Since the upper pressing portion 41 and the lower pressing portion 42 can surely make the continuous sheet S flat before the cylindrical continuous sheet S is sandwiched between the first and second twist members 43a and 43b, The continuous sheet S can be securely and stably held by the first and second twist members 43a and 43b. The upper pressing portion 41 and the lower pressing portion 42 may be omitted.
（ひねり部材）
　回転ひねりユニット４の第１及び第２ひねり部材４３ａ，４３ｂは、図５に示すように、上部押さえ部４１と下部押さえ部４２との間に配置され、図４にも示すように、後述するひねり部材開閉機構５によって水平方向に移動可能に対向配置されている。第１及び第２ひねり部材４３ａ，４３ｂは、直方体状のブロックで形成されており、扁平状の連続シートＳを上下方向に所定長さに亘って挟持する高さを有する。第１及び第２ひねり部材４３ａ，４３ｂは、図４及び図５に示すように、第１及び第２ひねり部材４３ａ，４３ｂの一部となる第１及び第２取付け部材５１ａ,５１ｂに取り付けられている。 (Twisted member)
As shown in FIG. 5, the first and second twist members 43a and 43b of the rotary twist unit 4 are disposed between the upper pressing portion 41 and the lower pressing portion 42, and will be described later as shown in FIG. The twist member opening / closing mechanism 5 is disposed so as to be movable in the horizontal direction. The first and second twist members 43a and 43b are formed of rectangular parallelepiped blocks, and have a height for sandwiching the flat continuous sheet S in a vertical direction over a predetermined length. As shown in FIGS. 4 and 5, the first and second twist members 43a and 43b are attached to the first and second attachment members 51a and 51b that are part of the first and second twist members 43a and 43b. ing.
　第１及び第２ひねり部材４３ａ，４３ｂの連続シートＳを挟持する面は、連続シートＳが滑らないようにするために多数の小さい横溝を形成して凹凸を有するように形成されている。第１及び第２ひねり部材４３ａ，４３ｂは、扁平状の連続シートＳを挟持し、その挟持状態で回転駆動部６の駆動により同時に回転するようになっている。なお、第１及び第２ひねり部材４３ａ，４３ｂは、連続シートＳを挟持する面を加熱する構成とすることもでき、この場合は連続シートＳをひねると同時に熱シールすることができる。 The surfaces of the first and second twist members 43a and 43b that sandwich the continuous sheet S are formed to have irregularities by forming a large number of small lateral grooves so that the continuous sheet S does not slip. The first and second twist members 43a and 43b sandwich the flat continuous sheet S, and rotate simultaneously by driving the rotation drive unit 6 in the sandwiched state. In addition, the 1st and 2nd twist members 43a and 43b can also be set as the structure which heats the surface which clamps the continuous sheet S, and can heat-seal simultaneously with twisting the continuous sheet S in this case.
（ひねり部材開閉機構）
　第１及び第２ひねり部材４３ａ，４３ｂが取り付けられる第１及び第２取付け部材５１ａ,５１ｂは、図４から図６に示すように、ひねり部材用スライドブロック５２と、ひねり部材用スライドブロック５２をスライドさせるひねり部材用レール５３を介して大平歯車６１の上面に水平移動可能に支持される。 (Twist member opening / closing mechanism)
As shown in FIGS. 4 to 6, the first and second mounting members 51a and 51b to which the first and second twist members 43a and 43b are attached include the twist member slide block 52 and the twist member slide block 52, respectively. It is supported on the upper surface of the large spur gear 61 through a twisting member rail 53 to be slidably movable.
　ひねり部材用レール５３は、図４に示すように、大平歯車６１の上面に２本平行させて固定されており、この２本のひねり部材用レール５３にそれぞれ２個のひねり部材用スライドブロック５２を摺動可能に配置させている。そして、第１及び第２取付け部材５１ａ,５１ｂの底面の二箇所にひねり部材用スライドブロック５２を固定して、２本のひねり部材用レール５３上を第１及び第２取付け部材５１ａ,５１ｂが水平移動するようになっている。 As shown in FIG. 4, two twist member rails 53 are fixed in parallel to the upper surface of the large spur gear 61, and two twist member slide blocks 52 are respectively attached to the two twist member rails 53. Are slidably arranged. Then, the twist member slide block 52 is fixed to two locations on the bottom surfaces of the first and second attachment members 51a and 51b, and the first and second attachment members 51a and 51b are placed on the two twist member rails 53. It is designed to move horizontally.
　本実施形態では、第１及び第２取付け部材５１ａ,５１ｂ、ひねり部材用スライドブロック５２及びひねり部材用レール５３は、第１及び第２ひねり部材４３ａ，４３ｂを水平方向に移動させるひねり部材開閉機構５の一部を構成している。 In this embodiment, the first and second mounting members 51a, 51b, the twist member slide block 52, and the twist member rail 53 are twist member opening / closing mechanisms that move the first and second twist members 43a, 43b in the horizontal direction. 5 is a part.
　さらに、ひねり部材開閉機構５は、図４及び図５に示すように、第１取付け部材５１ａの一部となる第１カムフォロアプレート５５ａと、第２取付け部材５１ｂの一部となる第２カムフォロアプレート５５ｂとを備える。第１カムフォロアプレート５５ａには、第１取付け部材５１ａを水平移動させるための第１カムフォロア５４ａが取り付けられ、第２カムフォロアプレート５５ｂには、第２取付け部材５１ｂを水平移動させるための第２カムフォロア５４ｂが取り付けられている。第１カムフォロア５４ａ及び第２カムフォロア５４ｂが本願発明のピン部となる。第１カムフォロア５４ａ及び第２カムフォロア５４ｂは、頭部が第１及び第２カムフォロアプレート５５ａ，５５ｂから上方に突出するように第１及び第２カムフォロアプレート５５ａ，５５ｂに固定されている。 Further, as shown in FIGS. 4 and 5, the twist member opening / closing mechanism 5 includes a first cam follower plate 55a that is a part of the first mounting member 51a and a second cam follower plate that is a part of the second mounting member 51b. 55b. A first cam follower 54a for horizontally moving the first attachment member 51a is attached to the first cam follower plate 55a, and a second cam follower 54b for horizontally moving the second attachment member 51b is attached to the second cam follower plate 55b. Is attached. The first cam follower 54a and the second cam follower 54b are the pin portions of the present invention. The first cam follower 54a and the second cam follower 54b are fixed to the first and second cam follower plates 55a and 55b so that the heads protrude upward from the first and second cam follower plates 55a and 55b.
　そして、図３及び図５に示すように、第１カムフォロアプレート５５ａの上方には、下面に第１カムフォロア５４ａの頭部が嵌合され、両端が開放された円弧溝を有する半円弧の第１開閉カム５６ａが配置されている。この第１開閉カム５６ａは、円弧の切欠きを中央部に有する長尺板状の第１開閉カム取付プレート５７ａに固定されている。第２カムフォロアプレート５５ｂの上方には、下面に第２カムフォロア５４ｂの頭部が嵌合され、両端が開放された円弧溝を有する半円弧の第２開閉カム５６ｂが配置されている。この第２開閉カム５６ｂも、円弧の切欠きを中央部に有する長尺板状の第２開閉カム取付プレート５７ｂに固定されている。第１及び第２開閉カム５６ａ，５６ｂと第１及び第２開閉カム取付プレート５７ａ，５７ｂもひねり部材開閉機構５を構成する部材である。第１開閉カム５６ａと第１開閉カム取付プレート５７ａとにより本願発明の板状の開閉部材の一方を、第２開閉カム５６ｂと第２開閉カム取付プレート５７ｂとにより本願発明の板状の開閉部材の他方を構成する。 As shown in FIGS. 3 and 5, a semicircular arc first having a circular groove with the head of the first cam follower 54 a fitted on the lower surface and open at both ends above the first cam follower plate 55 a. An opening / closing cam 56a is arranged. The first opening / closing cam 56a is fixed to a long plate-like first opening / closing cam mounting plate 57a having a circular arc cutout at the center. Above the second cam follower plate 55b, a semicircular arc second opening / closing cam 56b having an arc groove with the head of the second cam follower 54b fitted to the lower surface and open at both ends is disposed. The second opening / closing cam 56b is also fixed to a long plate-like second opening / closing cam mounting plate 57b having a circular arc cutout at the center. The first and second opening / closing cams 56a, 56b and the first and second opening / closing cam mounting plates 57a, 57b are also members constituting the twisting member opening / closing mechanism 5. The first opening / closing cam 56a and the first opening / closing cam mounting plate 57a serve as one of the plate-shaped opening / closing members of the present invention. The second opening / closing cam 56b and the second opening / closing cam mounting plate 57b serve as the plate-shaped opening / closing member of the present invention. Of the other.
　さらに、第１及び第２開閉カム５６ａ，５６ｂの開閉動作を行うための残りのひねり部材開閉機構５の構成部材であって、本願発明の開閉部材を水平方向に移動させる駆動機構について説明する。２本の長尺支持フレーム８１の上端面で、長手方向一端側には、図３及び図４に示すように、開閉カム用レール５８ａが設けられている。対向して配置される２本の開閉カム用レール５８ａには、第１開閉カム５６ａが固定された第１開閉カム取付プレート５７ａと第２開閉カム５６ｂが固定された第２開閉カム取付プレート５７ｂとが開閉カム用スライドブロック５８ｂを介して摺動可能に支持される。 Further, a drive mechanism for moving the opening / closing member of the present invention in the horizontal direction, which is a component of the remaining twisting member opening / closing mechanism 5 for opening / closing the first and second opening / closing cams 56a, 56b, will be described. As shown in FIGS. 3 and 4, an opening / closing cam rail 58 a is provided on one end side in the longitudinal direction on the upper end surfaces of the two long support frames 81. The two opening / closing cam rails 58a arranged opposite to each other have a first opening / closing cam mounting plate 57a to which the first opening / closing cam 56a is fixed and a second opening / closing cam mounting plate 57b to which the second opening / closing cam 56b is fixed. Are slidably supported via an open / close cam slide block 58b.
　開閉カム用スライドブロック５８ｂは、第１及び第２開閉カム取付プレート５７ａ，５７ｂの長手方向両端部の裏面に固定されている。そして、第１及び第２開閉カム取付プレート５７ａ，５７ｂの長手方向両端部の上面には、ロッド支持部材５８ｃが取り付けられている。第１開閉カム取付プレート５７ａの２つのロッド支持部材５８ｃには、短ロッド５８ｄの一端部が揺動自在に支持されている。また、第２開閉カム取付プレート５７ｂの２つのロッド支持部材５８ｃには、長ロッド５８ｅの一端部が揺動自在に支持されている。 The open / close cam slide block 58b is fixed to the back surfaces of both end portions in the longitudinal direction of the first and second open / close cam mounting plates 57a, 57b. A rod support member 58c is attached to the upper surfaces of the longitudinal ends of the first and second opening / closing cam attachment plates 57a and 57b. One end of a short rod 58d is swingably supported by the two rod support members 58c of the first opening / closing cam mounting plate 57a. Further, one end of the long rod 58e is swingably supported by the two rod support members 58c of the second opening / closing cam mounting plate 57b.
　２本の長尺支持フレーム８１の長手方向他端側には、短ロッド５８ｄ及び長ロッド５８ｅの他端部が揺動可能に支持される開閉従動レバー５８ｆ、開閉従動レバー５８ｆを揺動させる駆動軸５８ｇ及び駆動軸５８ｇを正逆回転可能に回転させる開閉駆動レバー５８ｈが取付プレート５８ｉを介して支持されている。 On the other end in the longitudinal direction of the two long support frames 81, an opening / closing driven lever 58f on which the other ends of the short rod 58d and the long rod 58e are swingably supported, and a drive for swinging the opening / closing driven lever 58f. An opening / closing drive lever 58h for rotating the shaft 58g and the drive shaft 58g so as to rotate forward and backward is supported via a mounting plate 58i.
　さらに、開閉駆動レバー５８ｈのレバー先端部には、クランクアーム５８ｊの一端部が揺動可能に支持され、さらに、クランクアーム５８ｊの他端部は、開閉駆動モータ５８ｋによって回転する円板５８ｍの外周縁に揺動可能に支持されている。開閉駆動モータ５８ｋ及び円板５８ｍは、モータ取付板５８ｎを介して支持フレーム８を支持する支持軸８５に挿通したリニアブッシュ８４に固定されている。 Further, one end of the crank arm 58j is swingably supported at the lever tip of the open / close drive lever 58h, and the other end of the crank arm 58j is outside the disc 58m rotated by the open / close drive motor 58k. It is supported on the periphery so as to be swingable. The opening / closing drive motor 58k and the disk 58m are fixed to a linear bush 84 inserted through a support shaft 85 that supports the support frame 8 via a motor mounting plate 58n.
　本実施形態では、開閉駆動モータ５８ｋは、制御装置１２により、駆動軸５８ｇを所定の角度の範囲内で往復回転するように回転制御されている。開閉駆動モータ５８ｋを駆動して円板５８ｍが所定角度回転すると、クランクアーム５８ｊが直線的に動いて、開閉駆動レバー５８ｈを揺動させる。そして、開閉駆動レバー５８ｈの揺動で駆動軸５８ｇが回転し、駆動軸５８ｇの回転により開閉従動レバー５８ｆが揺動する。開閉従動レバー５８ｆの揺動により、開閉従動レバー５８ｆに接続される短ロッド５８ｄと長ロッド５８ｅが直線運動をする。 In this embodiment, the opening / closing drive motor 58k is rotationally controlled by the control device 12 so as to reciprocately rotate the drive shaft 58g within a predetermined angle range. When the opening / closing drive motor 58k is driven and the disk 58m rotates by a predetermined angle, the crank arm 58j moves linearly and swings the opening / closing drive lever 58h. Then, the drive shaft 58g is rotated by the swing of the open / close drive lever 58h, and the open / close driven lever 58f is swinged by the rotation of the drive shaft 58g. As the open / close driven lever 58f swings, the short rod 58d and the long rod 58e connected to the open / close driven lever 58f linearly move.
　短ロッド５８ｄと長ロッド５８ｅの往復直線運動により、第１開閉カム取付プレート５７ａ及び第２開閉カム取付プレート５７ｂとを互いに離反した状態から近接する方向に移動させると第１及び第２開閉カム５６ａ，５６ｂが閉じ、近接した状態から離反する方向に移動させると第１及び第２開閉カム５６ａ，５６ｂが開くようになっている。 When the first open / close cam mounting plate 57a and the second open / close cam mounting plate 57b are moved away from each other by the reciprocating linear motion of the short rod 58d and the long rod 58e, the first and second open / close cams 56a are moved. , 56b are closed, and the first and second opening / closing cams 56a, 56b are opened when moved in a direction away from the close state.
　第１及び第２開閉カム取付プレート５７ａ，５７ｂの開閉動作に伴って、第１及び第２開閉カム５６ａ，５６ｂ、第１及び第２カムフォロア５４ａ，５４ｂ、第１及び第２カムフォロアプレート５５ａ，５５ｂ、そして、第１及び第２取付け部材５１ａ,５１ｂを介して第１及び第２ひねり部材４３ａ，４３ｂが開閉するようになっている。 Along with the opening / closing operation of the first and second opening / closing cam mounting plates 57a, 57b, the first and second opening / closing cams 56a, 56b, the first and second cam followers 54a, 54b, and the first and second cam follower plates 55a, 55b. And the 1st and 2nd twist members 43a and 43b open and close via the 1st and 2nd attachment members 51a and 51b.
　第１及び第２開閉カム取付プレート５７ａ，５７ｂが互いに離反している場合は、図３から図５に示すように、第１及び第２ひねり部材４３ａ，４３ｂは互いに離反した状態になっている。この状態で、筒状の連続シートＳが第１及び第２ひねり部材４３ａ，４３ｂの間に挿通される。そして、第１及び第２開閉カム取付プレート５７ａ，５７ｂが互い接近する方向に移動すると、図６に示すように、第１及び第２ひねり部材４３ａ，４３ｂは、対向面が接触して、筒状の連続シートＳを扁平状態で挟持する。 When the first and second opening / closing cam mounting plates 57a and 57b are separated from each other, the first and second twist members 43a and 43b are separated from each other as shown in FIGS. . In this state, the cylindrical continuous sheet S is inserted between the first and second twist members 43a and 43b. When the first and second opening / closing cam mounting plates 57a and 57b move in the direction in which they approach each other, as shown in FIG. 6, the first and second twist members 43a and 43b come into contact with each other, and A continuous sheet S is sandwiched in a flat state.
（回転駆動部）
　さらに、連続シートＳを挟持した状態の第１及び第２ひねり部材４３ａ，４３ｂを同時に回転させる回転駆動部６は、図４に示すように、第１及び第２ひねり部材４３ａ，４３ｂと、第１及び第２取付け部材５１ａ,５１ｂとが配置される大平歯車６１と、大平歯車６１を回転させる４つの小平歯車６３とを備える。大平歯車６１の上面には、第１及び第２ひねり部材４３ａ，４３ｂ、第１及び第２取付け部材５１ａ,５１ｂなどを摺動させるひねり部材用レール５３が固定されている。さらに、大平歯車６１は、筒状の連続シートＳが挿通できるように中心部に開口部６４が形成されている。４つの小平歯車６３のうちの１つは、歯車駆動モータ６５で回転駆動するようになっている。４つの小平歯車６３と歯車駆動モータ６５はベースフレーム８３に支持されている。 (Rotation drive part)
Furthermore, as shown in FIG. 4, the rotation driving unit 6 that simultaneously rotates the first and second twist members 43 a and 43 b in a state where the continuous sheet S is sandwiched includes the first and second twist members 43 a and 43 b, A large spur gear 61 on which the first and second mounting members 51 a and 51 b are arranged, and four small spur gears 63 that rotate the large spur gear 61 are provided. On the upper surface of the large spur gear 61, a twist member rail 53 for sliding the first and second twist members 43a and 43b, the first and second attachment members 51a and 51b, and the like is fixed. Further, the large spur gear 61 has an opening 64 at the center so that the cylindrical continuous sheet S can be inserted. One of the four small spur gears 63 is rotationally driven by a gear drive motor 65. The four small spur gears 63 and the gear drive motor 65 are supported by the base frame 83.
　回転駆動部６は、第１及び第２開閉カム５６ａ，５６ｂが互いに近接して第１及び第２ひねり部材４３ａ，４３ｂの先端部が当接し、筒状の連続シートＳを挟持している状態のとき、大平歯車６１を回転駆動するように構成されている。第１及び第２開閉カム５６ａ，５６ｂが閉じると、第１及び第２開閉カム５６ａ，５６ｂの端面が接触して、それぞれの下面に形成した円弧溝が連続して環状の溝が形成された状態になる。円弧溝が連続した環状の溝となっているので、第１及び第２カムフォロア５４ａ，５４ｂは大平歯車６１の回転動作に伴って環状溝内を摺動し、第１及び第２ひねり部材４３ａ，４３ｂも大平歯車６１と共に回転して、筒状の連続シートＳのひねり加工が行われる。 The rotation drive unit 6 is in a state where the first and second opening / closing cams 56a and 56b are close to each other and the leading ends of the first and second twisting members 43a and 43b are in contact with each other to sandwich the cylindrical continuous sheet S. At this time, the large spur gear 61 is rotationally driven. When the first and second opening / closing cams 56a, 56b are closed, the end surfaces of the first and second opening / closing cams 56a, 56b are in contact with each other, and circular grooves formed on the lower surfaces of the respective opening and closing cams 56a, 56b are formed. It becomes a state. Since the circular arc groove is a continuous annular groove, the first and second cam followers 54a and 54b slide in the annular groove as the large spur gear 61 rotates, and the first and second twist members 43a, 43b also rotates together with the large spur gear 61 to twist the cylindrical continuous sheet S.
　第１及び第２開閉カム５６ａ，５６ｂを互いに離反する方向に開くときは、第１カムフォロア５４ａが第１開閉カム５６ａの中央部に、第２カムフォロア５４ｂが第２開閉カム５６ｂの中央部に位置させる。 When the first and second opening / closing cams 56a, 56b are opened away from each other, the first cam follower 54a is positioned at the center of the first opening / closing cam 56a, and the second cam follower 54b is positioned at the center of the second opening / closing cam 56b. Let
　大平歯車６１の中心部に形成する開口部６４内には、中空型のスリップリング６６の上部が配置される。このスリップリング６６は、後述する包装物保持部７の保持プレート７１を保護すると共に、例えば、大平歯車６１上に、ヒータなどの電気駆動が必要な部材を配置させて、電源を供給できるようにするために設けられている。 In the opening 64 formed at the center of the large spur gear 61, an upper portion of a hollow slip ring 66 is disposed. The slip ring 66 protects a holding plate 71 of the package holding unit 7 to be described later, and, for example, a member such as a heater that needs electric drive can be arranged on the large spur gear 61 so that power can be supplied. Is provided to do.
　スリップリング６６は、図５及び図８に示すように、大平歯車６１の回転に連動して回転するロータ６６ａと、支持フレーム８のベースフレーム８３に、スリップリング取付部材６７を介して固定されるステータ６６ｂとを備える。スリップリング６６のロータ６６ａの中空部には、包装物保持部７の保持プレート７１、筒状の連続シートＳ及び連続シートＳに包み込まれた被包装物Ｔが挿通される。 As shown in FIGS. 5 and 8, the slip ring 66 is fixed to a rotor 66 a that rotates in conjunction with the rotation of the large spur gear 61 and a base frame 83 of the support frame 8 via a slip ring attachment member 67. And a stator 66b. In the hollow portion of the rotor 66a of the slip ring 66, the holding plate 71 of the package holding unit 7, the cylindrical continuous sheet S, and the packaged object T wrapped in the continuous sheet S are inserted.
（包装物保持部）
　図５、図７、図８及び図９に示すように、下部押さえ部４２の下方であって、スリップリング６６の中空部内及びその下方には、被包装物Ｔが包み込まれた筒状の連続シートＳを保持する回転ひねりユニット４の包装物保持部７が配置されている。 (Package holder)
As shown in FIGS. 5, 7, 8, and 9, a cylindrical continuous case in which the article to be packaged T is wrapped in the hollow portion of the slip ring 66 and below the lower pressing portion 42. A package holder 7 of the rotary twist unit 4 that holds the sheet S is disposed.
　包装物保持部７は、図５及び図７に示すように、被包装物Ｔが包み込まれた連続シートＳを保持し、水平方向に揺動可能な６つの保持プレート７１を備えている。保持プレート７１は、スリップリング６６の中空部に配置される上下に長い板状の保持片７１ａと、保持片７１ａの下端部に連続して水平方向に延設され、回転軸７２が固定される二股状の回動支持部７１ｂとを有する。回動支持部７１ｂの二股の間には駆動歯車７３が配置されており、この駆動歯車７３は回転軸７２に固定されている。さらに回転軸７２の上下両端部には軸受７４が取り付けられる。軸受７４は、図５に示すように、回動支持部７１ｂを上下で挟むように配置される上部軸受支持板７５ａと下部軸受支持板７５ｂとに固定されている。上部軸受支持板７５ａには、保持プレート７１の保持片７１ａが挿通される開口部が形成されている。 As shown in FIGS. 5 and 7, the package holding unit 7 includes six holding plates 71 that hold the continuous sheet S in which the package T is wrapped and can swing in the horizontal direction. The holding plate 71 extends in the horizontal direction continuously to the upper and lower plate-like holding pieces 71a disposed in the hollow portion of the slip ring 66 and the lower end of the holding piece 71a, and the rotating shaft 72 is fixed. And a bifurcated rotation support portion 71b. A drive gear 73 is disposed between the two branches of the rotation support portion 71 b, and the drive gear 73 is fixed to the rotating shaft 72. Furthermore, bearings 74 are attached to the upper and lower ends of the rotating shaft 72. As shown in FIG. 5, the bearing 74 is fixed to an upper bearing support plate 75a and a lower bearing support plate 75b that are disposed so as to sandwich the rotation support portion 71b between the upper and lower sides. An opening through which the holding piece 71a of the holding plate 71 is inserted is formed in the upper bearing support plate 75a.
　図７及び図８に示すように、下部軸受支持板７５ｂの下面には、保持プレート７１の回転軸７２のうちの１つに接続して、回転軸７２を所定の範囲内で正逆回転させるためのエアシリンダ７６が配置されている。エアシリンダ７６のピストンロッドの先端にはロッドエンド７７が固定され、さらに、ロッドエンド７７には、長尺なシリンダレバー７８の一端が揺動可能に接続されている。シリンダレバー７８の他端は回転軸７２の下端に固定されている。また、エアシリンダ７６は、図８に示すように、下部軸受支持板７５ｂの下面に揺動可能に支持されている。 As shown in FIGS. 7 and 8, the lower bearing support plate 75 b is connected to one of the rotating shafts 72 of the holding plate 71 on the lower surface of the lower bearing support plate 75 b to rotate the rotating shaft 72 forward and backward within a predetermined range. An air cylinder 76 is disposed. A rod end 77 is fixed to the tip of the piston rod of the air cylinder 76, and one end of a long cylinder lever 78 is swingably connected to the rod end 77. The other end of the cylinder lever 78 is fixed to the lower end of the rotating shaft 72. Further, as shown in FIG. 8, the air cylinder 76 is swingably supported on the lower surface of the lower bearing support plate 75b.
　さらに、図７及び図９に示すように、６つの保持プレート７１が連動して揺動するように、隣り合う保持プレート７１の駆動歯車７３の間には、伝達ギア７９が配置されている。伝達ギア７９は、６個配置されており、駆動歯車７３に噛み合う伝達歯車７９ａと、伝達歯車７９ａの上下両端面に嵌合される軸受７９ｂと、軸受７９ｂ及び伝達歯車７９ａに挿通される支持軸７９ｃと、伝達歯車７９ａを挟むように支持軸７９ｃに挿通される上下２つの金属カラー７９ｄと、支持軸７９ｃの両端に固定される極低頭ボルト７９ｅとを備える。伝達ギア７９は、極低頭ボルト７９ｅにより上部軸受支持板７５ａと下部軸受支持板７５ｂとに固定される。 7 and 9, a transmission gear 79 is disposed between the drive gears 73 of the adjacent holding plates 71 so that the six holding plates 71 swing in conjunction with each other. Six transmission gears 79 are arranged, a transmission gear 79a meshing with the drive gear 73, a bearing 79b fitted to both upper and lower end surfaces of the transmission gear 79a, and a support shaft inserted through the bearing 79b and the transmission gear 79a. 79c, two upper and lower metal collars 79d inserted into the support shaft 79c so as to sandwich the transmission gear 79a, and extremely low head bolts 79e fixed to both ends of the support shaft 79c. The transmission gear 79 is fixed to the upper bearing support plate 75a and the lower bearing support plate 75b by extremely low head bolts 79e.
　６個の駆動歯車７３と６個の伝達歯車７９ａとは、スリップリング６６の中空の円形に沿って円を描くように配置されており、図９（Ａ）に示すように、エアシリンダ７６に接続される回転軸７２が回転すると、伝達歯車７９ａを介してその他の回転軸７２も連動して回転するようになっている。なお、駆動歯車７３及び伝達歯車７９ａの個数は本実施形態１に限定されない。そして、保持プレート７１の回動支持部７１ｂが回転軸７２を中心にして揺動すると、図９（Ｂ）に示すように、保持片７１ａの先端部がスリップリング６６の中心に向かって揺動して、被包装物Ｔを包み込んだ連続シートＳに圧接する。また、保持片７１ａの先端部が反対方向に揺動すると、図９（Ａ）に示す状態となって連続シートＳの保持が解除される。保持片７１ａは、連続シートＳ内に複数の被包装物Ｔが内装されていても、複数の被包装物Ｔを同時に保持できる長さを有しているので、型崩れすることなく連続シートＳを介して複数の被包装物Ｔを確実に保持できる。 The six drive gears 73 and the six transmission gears 79a are arranged so as to draw a circle along the hollow circle of the slip ring 66, and as shown in FIG. When the connected rotary shaft 72 rotates, the other rotary shafts 72 rotate in conjunction with each other via the transmission gear 79a. The numbers of the drive gear 73 and the transmission gear 79a are not limited to the first embodiment. When the rotation support portion 71b of the holding plate 71 swings about the rotation shaft 72, the tip end portion of the holding piece 71a swings toward the center of the slip ring 66 as shown in FIG. And it press-contacts to the continuous sheet S which wrapped the to-be-packaged goods T. FIG. When the leading end of the holding piece 71a swings in the opposite direction, the state shown in FIG. 9A is obtained and the holding of the continuous sheet S is released. Since the holding piece 71a has a length capable of holding the plurality of packages T at the same time even if the plurality of packages T are provided in the continuous sheet S, the continuous sheet S does not lose its shape. A plurality of articles to be packaged T can be reliably held via the.
　本実施形態１では、包装物保持部７の保持プレート７１で、被包装物Ｔを包み込んだ連続シートＳを全周に亘って保持した状態で、第１及び第２ひねり部材４３ａ，４３ｂにより被包装物Ｔのない連続シートＳを挟持してひねり加工を行うと共に、連続シートＳを切断するようになっている。 In the first embodiment, the first and second twist members 43a and 43b cover the continuous sheet S wrapped around the package T with the holding plate 71 of the package holder 7 over the entire circumference. The continuous sheet S without the package T is sandwiched and twisted, and the continuous sheet S is cut.
　さらに、包装物保持部７は、図８に示すように、スリップリング取付部材６７に上下動可能に固定されている。包装物保持部７の下部軸受支持板７５ｂが２つの収縮吸収用エアシリンダ８０を介してスリップリング取付部材６７に固定されている。収縮吸収用エアシリンダ８０のピストンの上下方向の動きにより、下部軸受支持板７５ｂが上下動すると、保持プレート７１もスリップリング６６に対して上下動するようになっている。 Furthermore, the package holder 7 is fixed to the slip ring mounting member 67 so as to be movable up and down as shown in FIG. The lower bearing support plate 75b of the package holder 7 is fixed to the slip ring mounting member 67 via two shrinkage absorbing air cylinders 80. When the lower bearing support plate 75 b moves up and down due to the vertical movement of the piston of the contraction-absorbing air cylinder 80, the holding plate 71 also moves up and down with respect to the slip ring 66.
　被包装物Ｔを包み込んだ連続シートＳを保持プレート７１で保持したまま連続シートＳをひねると、ひねりにより連続シートＳの被包装物Ｔを包み込んだ部分が上方に移動しようとする。連続シートＳのフィルムが薄くて引っ張り強度が弱い場合には、連続シートＳを保持プレート７１で保持したままひねり加工を行うとフィルムが破損する可能性がある。本実施形態１のひねり包装装置１では、ひねり加工に合わせて包装物保持部７の全体を収縮吸収用エアシリンダ８０により上方に移動させることができるので、フィルム強度の弱い連続シートＳを使用する場合でも、連続シートＳが損傷することなく、確実に連続シートＳのひねり加工を行うことができる。 If the continuous sheet S is twisted while the continuous sheet S wrapped around the package T is held by the holding plate 71, the portion of the continuous sheet S wrapped around the package T tends to move upward due to the twist. When the film of the continuous sheet S is thin and the tensile strength is weak, if the twisting process is performed while the continuous sheet S is held by the holding plate 71, the film may be damaged. In the twist wrapping apparatus 1 according to the first embodiment, the entire package holding unit 7 can be moved upward by the shrinkage absorbing air cylinder 80 in accordance with the twisting process, and therefore the continuous sheet S having a low film strength is used. Even in this case, the continuous sheet S can be reliably twisted without damaging the continuous sheet S.
（カッター移動機構）
　また、図５及び図６に示すように、一方の第１ひねり部材４３ａの上下中間位置の内部には、水平方向に移動可能に板状のカッター９１が配置されている。カッター９１は、第１及び第２ひねり部材４３ａ，４３ｂで連続シートＳを扁平状に挟持した状態で連続シートＳを切断する。 (Cutter moving mechanism)
As shown in FIGS. 5 and 6, a plate-like cutter 91 is arranged inside the upper and lower intermediate positions of one first twisting member 43 a so as to be movable in the horizontal direction. The cutter 91 cuts the continuous sheet S in a state where the continuous sheet S is held flat by the first and second twist members 43a and 43b.
　カッター９１は、図４から図６に示すように、第１カムフォロア５４ａが取り付けられる第１カムフォロアプレート５５ａに固定されている。さらに、図４に示すように、第１カムフォロアプレート５５ａの底面には、カッター用レール９２が固定され、このカッター用レール９２が第１取付け部材５１ａの上面に固定するカッター用スライドブロック９３に摺動可能に支持されている。 4 to 6, the cutter 91 is fixed to a first cam follower plate 55a to which the first cam follower 54a is attached. Further, as shown in FIG. 4, a cutter rail 92 is fixed to the bottom surface of the first cam follower plate 55a, and the cutter rail 92 slides on a cutter slide block 93 fixed to the upper surface of the first mounting member 51a. It is supported movably.
　そして、第１カムフォロアプレート５５ａと第１取付け部材５１ａは、図４から図６に示すように、圧縮バネ９４を介して接続されている。圧縮バネ９４は、第１取付け部材５１ａに設けたバネ受け９５と第１カムフォロアプレート５５ａの上面側に形成したバネストッパー９６との間に設けられている。 The first cam follower plate 55a and the first attachment member 51a are connected via a compression spring 94 as shown in FIGS. The compression spring 94 is provided between a spring receiver 95 provided on the first attachment member 51a and a spring stopper 96 formed on the upper surface side of the first cam follower plate 55a.
　また、第１カムフォロアプレート５５ａの下面には、第１取付け部材５１ａに対する第１カムフォロアプレート５５ａの後退を規制するプレートストッパー９７が形成されている。プレートストッパー９７が第１取付け部材５１ａに設けたストッパー受部９８に当接すると、第１取付け部材５１ａも第１カムフォロアプレート５５ａの後退に連動して後退するようになっている。 Further, a plate stopper 97 for restricting the first cam follower plate 55a from moving backward with respect to the first mounting member 51a is formed on the lower surface of the first cam follower plate 55a. When the plate stopper 97 abuts on a stopper receiving portion 98 provided on the first mounting member 51a, the first mounting member 51a is also retracted in conjunction with the retraction of the first cam follower plate 55a.
　カッター９１の動きについて説明すると、第１及び第２ひねり部材４３ａ，４３ｂの先端部が接触するように第１及び第２開閉カム５６ａ，５６ｂが閉鎖する方向に進出すると、第１開閉カム５６ａの円弧溝に嵌合する第１カムフォロア５４ａを介して第１カムフォロアプレート５５ａも進出する。第１カムフォロアプレート５５ａの進出により、第１取付け部材５１ａも、第１ひねり部材４３ａの先端部が第２ひねり部材４３ｂの先端部に接触するまでは、圧縮バネ９４で押されて進出する。第１カムフォロアプレート５５ａと第１取付け部材５１ａとが進出している間は、カッター９１の先端部は、第１ひねり部材４３ａの内部に収納された状態となっている。 The movement of the cutter 91 will be described. When the first and second opening / closing cams 56a, 56b are advanced in the closing direction so that the tip ends of the first and second twisting members 43a, 43b are in contact with each other, the first opening / closing cam 56a The first cam follower plate 55a also advances through the first cam follower 54a fitted in the arc groove. With the advancement of the first cam follower plate 55a, the first mounting member 51a is also advanced by being pushed by the compression spring 94 until the tip of the first twist member 43a contacts the tip of the second twist member 43b. While the first cam follower plate 55a and the first attachment member 51a are advanced, the tip end portion of the cutter 91 is housed in the first twist member 43a.
　そして、図６に示すように、第１及び第２カムフォロアプレート５５ａ，５５ｂの進出により、第１及び第２ひねり部材４３ａ，４３ｂの先端部が接触すると、第１及び第２ひねり部材４３ａ，４３ｂの先端部が圧接して第１及び第２取付け部材５１ａ,５１ｂは進出できなくなり、引き続き第１カムフォロアプレート５５ａが進出移動すると、圧縮バネ９４が圧縮されてカッター９１が第１ひねり部材４３ａ及び第１取付け部材５１ａに対して進出し始める。カッター９１が第１ひねり部材４３ａから突出すると扁平状の連続シートＳが切断される。なお、第１取付け部材５１ａと第２取付け部材５１ｂの移動ストロークは、第１取付け部材５１ａでのカッター９１の進出を考慮して第１取付け部材５１ａの移動ストロークを長くしている。 Then, as shown in FIG. 6, when the leading ends of the first and second twist members 43a and 43b come into contact with the advance of the first and second cam follower plates 55a and 55b, the first and second twist members 43a and 43b are brought into contact. When the first and second mounting members 51a and 51b cannot advance and the first cam follower plate 55a continues to move forward, the compression spring 94 is compressed and the cutter 91 is moved to the first twisting member 43a and the first twisting member 43a. The first attachment member 51a starts to advance. When the cutter 91 protrudes from the first twist member 43a, the flat continuous sheet S is cut. In addition, the movement stroke of the 1st attachment member 51a and the 2nd attachment member 51b makes the movement stroke of the 1st attachment member 51a long considering the advance of the cutter 91 in the 1st attachment member 51a.
　連続シートＳがカッター９１によって切断されると、被包装物Ｔを包み込んだ連続シートＳを包装物保持部７の保持プレート７１で保持した状態で、第１及び第２ひねり部材４３ａ，４３ｂにより切断された連続シートＳを挟持したまま回転駆動部６により第１及び第２ひねり部材４３ａ，４３ｂを１回転させてひねり加工を行う。 When the continuous sheet S is cut by the cutter 91, it is cut by the first and second twist members 43a and 43b in a state where the continuous sheet S wrapped around the package T is held by the holding plate 71 of the package holding unit 7. The first and second twist members 43a and 43b are rotated once by the rotation driving unit 6 while the continuous sheet S is sandwiched, and twist processing is performed.
　そして、第１及び第２開閉カム５６ａ，５６ｂが開く方向に後退し、第１カムフォロア５４ａを介して第１カムフォロアプレート５５ａが後退する。第１カムフォロアプレート５５ａの後退により、まず、圧縮バネ９４の弾性回復によりカッター９１が第１ひねり部材４３ａの内部に向かって後退する。圧縮バネ９４の弾性回復により第１カムフォロアプレート５５ａのプレートストッパー９７が第１取付け部材５１ａに設けたストッパー受部９８に当接するとカッター９１の後退が停止する。そして、プレートストッパー９７が第１取付け部材５１ａに設けたストッパー受部９８に当接することにより、第１カムフォロアプレート５５ａの後退に連動して第１取付け部材５１ａも後退し始め、第１及び第２ひねり部材４３ａ，４３ｂの先端部が離れて図５の状態になる。 Then, the first and second opening / closing cams 56a and 56b are retracted in the opening direction, and the first cam follower plate 55a is retracted via the first cam follower 54a. By the retraction of the first cam follower plate 55a, first, the cutter 91 is retracted toward the inside of the first twist member 43a by the elastic recovery of the compression spring 94. When the plate stopper 97 of the first cam follower plate 55a comes into contact with the stopper receiving portion 98 provided on the first mounting member 51a by the elastic recovery of the compression spring 94, the retreat of the cutter 91 is stopped. Then, when the plate stopper 97 contacts the stopper receiving portion 98 provided on the first mounting member 51a, the first mounting member 51a also starts to move in conjunction with the retraction of the first cam follower plate 55a. The tip portions of the twisting members 43a and 43b are separated from each other and become the state shown in FIG.
　本実施形態１では、カッター９１、カッター用レール９２、カッター用スライドブロック９３、圧縮バネ９４、バネ受け９５、バネストッパー９６、プレートストッパー９７及びストッパー受部９８により、カッター移動機構９が構成されている。このように、カッター９１は、第１カムフォロアプレート５５ａの開閉動作により、第１取付け部材５１ａ及び第１ひねり部材４３ａに対して水平方向にスライドできるようになっている。 In the first embodiment, the cutter moving mechanism 9 is configured by the cutter 91, the cutter rail 92, the cutter slide block 93, the compression spring 94, the spring receiver 95, the spring stopper 96, the plate stopper 97, and the stopper receiver 98. Yes. Thus, the cutter 91 can slide in the horizontal direction with respect to the first mounting member 51a and the first twist member 43a by the opening and closing operation of the first cam follower plate 55a.
　なお、カッター９１が設けられていない第２取付け部材５１ｂは、第２カムフォロア５４ｂが取り付けられる第２カムフォロアプレート５５ｂに固定されている。第２開閉カム５６ｂの開閉動作により、第２カムフォロア５４ｂを介して第２カムフォロアプレート５５ｂが開閉し、第２カムフォロアプレート５５ｂの移動に連動して、第２取付け部材５１ｂ及び第２ひねり部材４３ｂが開閉する。 The second mounting member 51b not provided with the cutter 91 is fixed to the second cam follower plate 55b to which the second cam follower 54b is attached. By the opening / closing operation of the second opening / closing cam 56b, the second cam follower plate 55b is opened / closed via the second cam follower 54b, and in conjunction with the movement of the second cam follower plate 55b, the second mounting member 51b and the second twisting member 43b are moved. Open and close.
（制御装置）
　本実施形態１では、搬送ユニット３の搬送用駆動モータ３４及びベルト移動用エアシリンダ３９の駆動、回転ひねりユニット４における上部エアシリンダ４１ｂ、下部エアシリンダ４２ｂ、開閉駆動モータ５８ｋ、歯車駆動モータ６５、スリップリング６６、エアシリンダ７６及び収縮吸収用エアシリンダ８０の駆動、上下駆動ユニット１０の駆動用モータ１０ｄの駆動、及び、供給パイプ２１への被包装物Ｔの供給、そして、必要であれば第１及び第２ひねり部材４３ａ，４３ｂの加熱の制御を制御装置１２で制御する。 (Control device)
In the first embodiment, the conveyance drive motor 34 and the belt moving air cylinder 39 of the conveyance unit 3 are driven, the upper air cylinder 41b, the lower air cylinder 42b, the opening / closing drive motor 58k, the gear drive motor 65 in the rotary twisting unit 4, Driving the slip ring 66, the air cylinder 76 and the contraction absorbing air cylinder 80, driving the driving motor 10d of the vertical drive unit 10, supplying the package T to the supply pipe 21, and if necessary The control device 12 controls the heating of the first and second twist members 43a and 43b.
　制御装置１２では、自動的に所望の複数の被包装物Ｔをまとめてひねり包装をするために、供給パイプ２１から連続シートＳ内への被包装物Ｔの供給量を制御し、供給される被包装物Ｔの量に基づいて搬送ユニット３による連続シートＳの搬送量を制御して、回転ひねりユニット４によるひねり及び切断の制御を行う。 In the control device 12, in order to automatically twist and package a plurality of desired articles to be packaged T, the supply amount of the articles to be packaged T from the supply pipe 21 into the continuous sheet S is controlled and supplied. The conveyance amount of the continuous sheet S by the conveyance unit 3 is controlled based on the amount of the package T, and the twisting and cutting by the rotary twist unit 4 are controlled.
　さらに、本実施形態１の制御装置１２は、回転ひねりユニット４によるひねり及び切断の制御を行う際、上部押さえ部４１を移動させて連続シートＳを挟持した後に、上部押さえ部４１より上方に位置する筒状の連続シートＳの内部に供給パイプ２１から所定量の被包装物Ｔを供給するように制御する。 Furthermore, when controlling the twisting and cutting by the rotary twisting unit 4, the control device 12 according to the first embodiment moves the upper pressing portion 41 to sandwich the continuous sheet S, and then is positioned above the upper pressing portion 41. Control is performed so that a predetermined amount of the article to be packaged T is supplied from the supply pipe 21 into the cylindrical continuous sheet S.
（動作の説明）
　次に、上記実施形態１に係るひねり包装装置１による連続シートＳのひねり及び切断の動作について図１０に基づいて説明する。ひねり包装装置１は、制御装置１２により各機器を駆動制御することによってひねり加工と切断が行われる。 (Description of operation)
Next, the operation of twisting and cutting the continuous sheet S by the twist packaging apparatus 1 according to the first embodiment will be described with reference to FIG. The twist wrapping apparatus 1 is twisted and cut by driving and controlling each device by the control device 12.
　まず、手動により、連続シートＳを図示しないリールから繰り出して、ガイドローラ１１ｊを経由してフォーマーユニット２のフォーマー２２に供給しておく。このとき、連続シートＳを供給パイプ２１の外周面に沿わしながらフォーマー２２の先端部によってＵ字状に湾曲させて供給パイプ２１とフォーマー２２との間に進入させる。フォーマー２２内に進入した連続シートＳは、幅方向両端部が重なり合った状態の筒状に整形される。 First, the continuous sheet S is manually unwound from a reel (not shown) and supplied to the former 22 of the former unit 2 via the guide roller 11j. At this time, the continuous sheet S is bent in a U-shape by the tip of the former 22 along the outer peripheral surface of the supply pipe 21 and enters between the supply pipe 21 and the former 22. The continuous sheet S that has entered the former 22 is shaped into a cylindrical shape in which both ends in the width direction overlap each other.
　筒状に整形された連続シートＳを搬送ユニット３を通過させて回転ひねりユニット４の下端まで引き出し、連続シートＳを搬送可能状態にしておく。連続シートＳの下端部は、予め手動でひねってひねり部分を形成しておいてもよいし、被包装物Ｔを供給する前に回転ひねりユニット４を駆動させてひねり部分を形成しておいてもよい。 The continuous sheet S shaped into a cylindrical shape is passed through the transport unit 3 and pulled out to the lower end of the rotary twist unit 4 so that the continuous sheet S can be transported. The lower end portion of the continuous sheet S may be manually twisted in advance to form a twisted portion, or before the package T is supplied, the rotary twisting unit 4 is driven to form the twisted portion. Also good.
　図示しない運転スイッチが投入されると、ホッパから所定量の被包装物Ｔが供給パイプ２１へと供給されると共に、搬送ユニット３の無端搬送ベルト３１が供給パイプ２１に向かって移動して無端搬送ベルト３１と供給パイプ２１とによって連続シートＳが押さえつけられて、搬送ユニット３の搬送用駆動モータ３４が駆動する。 When an operation switch (not shown) is turned on, a predetermined amount of article T to be packaged is supplied from the hopper to the supply pipe 21 and the endless conveyance belt 31 of the conveyance unit 3 moves toward the supply pipe 21 to endless conveyance. The continuous sheet S is pressed by the belt 31 and the supply pipe 21, and the conveyance drive motor 34 of the conveyance unit 3 is driven.
　搬送用駆動モータ３４が駆動すると、図１０（１）に示すように、連続シートＳは、リールから繰り出されてフォーマーユニット２を介して回転ひねりユニット４に搬送され、このとき、連続シートＳ内には、搬送ユニット３の出口まで延びる供給パイプ２１から被包装物Ｔが上下に整列した状態で確実に供給される。連続シートＳの下端はひねられて閉鎖されているので、被包装物Ｔが包まれた状態で連続シートＳは下方に向けて搬送される。 When the conveyance drive motor 34 is driven, as shown in FIG. 10A, the continuous sheet S is unwound from the reel and conveyed to the rotary twisting unit 4 via the former unit 2, and at this time, the continuous sheet S is conveyed. Inside, the articles to be packaged T are reliably supplied from the supply pipe 21 extending to the outlet of the transport unit 3 in a state where they are aligned vertically. Since the lower end of the continuous sheet S is twisted and closed, the continuous sheet S is conveyed downward while the article to be packaged T is wrapped.
　そして、図１０（２）に示すように、被包装物Ｔを包み込んだ連続シートＳが、包装物保持部７で保持される位置まで搬送されると搬送を一時停止する。搬送が停止されると、上部押さえ部４１の上部板状部材４１ａと下部押さえ部４２の下部板状部材４２ａが互いに進出して、筒状の連続シートＳの包装物保持部７よりも上方の部分が、上部板状部材４１ａと下部板状部材４２ａとで扁平状になるように押さえられる。また、包装物保持部７において、６枚の保持プレート７１で被包装物Ｔが包まれた連続シートＳの全周囲が保持される。 Then, as shown in FIG. 10 (2), when the continuous sheet S wrapped around the article to be packaged T is conveyed to the position held by the package holder 7, the conveyance is temporarily stopped. When the conveyance is stopped, the upper plate-shaped member 41a of the upper pressing portion 41 and the lower plate-shaped member 42a of the lower pressing portion 42 advance to each other, and are higher than the package holding portion 7 of the cylindrical continuous sheet S. The portion is pressed by the upper plate member 41a and the lower plate member 42a so as to be flat. Further, in the package holding unit 7, the entire periphery of the continuous sheet S in which the package T is wrapped by the six holding plates 71 is held.
　なお、上部押さえ部４１により連続シートＳが押さえつけられると、供給パイプ２１からは、次に包装する被包装物Ｔが供給され、図１０（３）に示すように、供給パイプ２１の下部で被包装物Ｔが待機する。さらに、図１０（３）に示すように、第１及び第２ひねり部材４３ａ，４３ｂが進出して、上部押さえ部４１と下部押さえ部４２に押さえられて扁平状態となっている連続シートＳを挟持する。 When the continuous sheet S is pressed down by the upper pressing portion 41, the article T to be packed next is supplied from the supply pipe 21, and is covered by the lower portion of the supply pipe 21 as shown in FIG. The package T waits. Further, as shown in FIG. 10 (3), the first and second twist members 43a and 43b advance, and the continuous sheet S that is flattened by being pressed by the upper pressing portion 41 and the lower pressing portion 42 is formed. Hold it.
　次に、連続シートＳは、第１及び第２ひねり部材４３ａ，４３ｂによって挟持されたまま、図１０（４）に示すように、カッター９１を進出させて連続シートＳの第１及び第２ひねり部材４３ａ，４３ｂで挟持されている中間位置を切断する。 Next, the continuous sheet S is held between the first and second twist members 43a and 43b, and as shown in FIG. 10 (4), the cutter 91 is advanced and the first and second twists of the continuous sheet S are advanced. The intermediate position sandwiched between the members 43a and 43b is cut.
　そして、図１０（４）に示すように、被包装物Ｔを包み込んだ連続シートＳを包装物保持部７の保持プレート７１で保持した状態で、第１及び第２ひねり部材４３ａ，４３ｂにより切断された連続シートＳを挟持したまま回転駆動部６により第１及び第２ひねり部材４３ａ，４３ｂを１回転させる。連続シートＳは、第１及び第２ひねり部材４３ａ，４３ｂで挟持された部分が扁平状に維持されたまま、第１及び第２ひねり部材４３ａ，４３ｂよりも上方と下方の２箇所でひねられる。第１及び第２ひねり部材４３ａ，４３ｂを回転させる際に、下部押さえ部４２の下部板状部材４２ａを連続シートＳから離反させておく。そして、ひねり加工が終わると上部押さえ部４１の上部板状部材４１ａを連続シートＳから離反させる。
　なお、上記では、先に連続シートＳをカッター９１で切断するが、先に第１及び第２ひねり部材４３ａ，４３ｂを１回転させて連続シートＳをひねり、その後、カッター９１で連続シートＳを切断するようにしてもよい。この場合、カッター移動機構９を開閉カム５６等の動きに連動させるのではなく、エアシリンダ等の他の駆動手段を用いて、ひねり部材４３とは独立して駆動すればよい。 Then, as shown in FIG. 10 (4), the continuous sheet S enclosing the package T is held by the holding plate 71 of the package holding unit 7 and cut by the first and second twist members 43a and 43b. The first and second twist members 43a and 43b are rotated once by the rotation driving unit 6 while the continuous sheet S is sandwiched. The continuous sheet S is twisted at two locations above and below the first and second twist members 43a and 43b while the portions sandwiched between the first and second twist members 43a and 43b are maintained flat. . When rotating the first and second twist members 43a and 43b, the lower plate-like member 42a of the lower pressing portion 42 is separated from the continuous sheet S. Then, when the twisting process is finished, the upper plate-like member 41a of the upper pressing portion 41 is separated from the continuous sheet S.
In the above, the continuous sheet S is first cut by the cutter 91, but the first and second twist members 43a and 43b are first rotated to twist the continuous sheet S, and then the continuous sheet S is cut by the cutter 91. You may make it cut | disconnect. In this case, the cutter moving mechanism 9 may be driven independently of the twisting member 43 using other driving means such as an air cylinder, instead of interlocking with the movement of the opening / closing cam 56 and the like.
　包装物保持部７では、ひねり加工を行う際、保持プレート７１で被包装物Ｔを包み込んだ連続シートＳを保持した状態を維持するので、第１及び第２ひねり部材４３ａ，４３ｂを回転させても、被包装物Ｔを包み込んだ連続シートＳの部分が回転することなく、連続シートＳのひねり加工を確実に行うことができる。 In the package holding unit 7, when the twisting process is performed, the holding plate 71 maintains the state where the continuous sheet S wrapped with the package T is held, so the first and second twist members 43 a and 43 b are rotated. In addition, the continuous sheet S can be reliably twisted without rotating the portion of the continuous sheet S that wraps the article T to be packaged.
　連続シートＳの切断加工とひねり加工が終了すると、図１０（５）に示すように、第１及び第２ひねり部材４３ａ，４３ｂを後退させると共に、包装物保持部７によるシートの保持が解除される。筒状の連続シートＳの下端部は、ひねり加工により閉鎖された状態になる。また、切断された連続シートＳは、上下両端部にひねり部分を有し、被包装物Ｔがシートで覆われた包装物Ｐとなる。２箇所のひねり部分を有する包装物Ｐは、包装物保持部７による保持が解除されて落下する。 When the cutting and twisting of the continuous sheet S is completed, as shown in FIG. 10 (5), the first and second twist members 43a and 43b are retracted, and the holding of the sheet by the package holder 7 is released. The The lower end portion of the cylindrical continuous sheet S is closed by twisting. Moreover, the cut | disconnected continuous sheet S turns into the package P which has the twist part in the up-and-down both ends, and the to-be-packaged goods T was covered with the sheet | seat. The package P having two twisted parts is released from being held by the package holding unit 7 and dropped.
　第１及び第２ひねり部材４３ａ，４３ｂよりも上方に位置する下端がひねられた連続シートＳは、下端部が閉鎖状態となるので、上部板状部材４１ａが離反しても、供給パイプ２１の下部で待機している被包装物Ｔは、連続シートＳのひねり部分で受け止められて落下しない。 Since the lower end portion of the continuous sheet S that is twisted above the first and second twist members 43a and 43b is closed, even if the upper plate member 41a is separated, The article T to be packaged waiting at the lower part is received by the twisted portion of the continuous sheet S and does not fall.
　２箇所のひねり部分を有する包装物Ｐが落下すると、図１０（５）に示すように連続シートＳの搬送が再び開始されて、図１０（２）の連続シートＳの被包装物Ｔが包み込まれた部分が包装物保持部７で保持される位置まで連続シートＳが搬送される。連続シートＳの被包装物Ｔが包み込まれた部分が包装物保持部７で保持されると、同様にして連続シートＳのひねり加工と切断が行われる。 When the package P having two twisted portions falls, the continuous sheet S is transported again as shown in FIG. 10 (5), and the package T of the continuous sheet S in FIG. 10 (2) is wrapped. The continuous sheet S is conveyed to a position at which the portion is held by the package holder 7. When the portion of the continuous sheet S in which the article to be packaged T is wrapped is held by the package holding unit 7, the continuous sheet S is similarly twisted and cut.
　以上説明したように、本実施形態１に係るひねり包装装置１によれば、筒状の連続シートＳの下端部がひねられて閉鎖された状態で、筒状の連続シートＳの内部に被包装物Ｔを供給した後に、上部のひねり加工と切断加工とを行うので、複数の被包装物Ｔでも確実にひねり包装を行うことができる。 As described above, according to the twist wrapping apparatus 1 according to the first embodiment, the bottom of the cylindrical continuous sheet S is twisted and closed to be wrapped inside the cylindrical continuous sheet S. Since the upper twist processing and cutting processing are performed after the article T is supplied, even a plurality of articles to be packaged T can be twist-wrapped reliably.
　さらに、上部押さえ部４１によって連続シートＳを押さえつけている間に、上部押さえ部４１より上方の連続シートＳの内部に所定量の被包装物Ｔを供給しておいて、筒状の連続シートＳのひねり加工を行うので、連続シートＳのひねり加工と切断加工が終了して、上部押さえ部４１を離反させた時点で、ひねり加工によって下端が閉鎖された連続シートＳの内部に所定量の被包装物Ｔをすぐに供給することができる。その結果、連続シートＳの切断後、被包装物Ｔを包み込んだ連続シートを直ぐに包装物保持部の位置まで搬送して、次のひねり動作に移ることができる。 Furthermore, while pressing the continuous sheet S by the upper pressing portion 41, a predetermined amount of the package T is supplied into the continuous sheet S above the upper pressing portion 41, and the cylindrical continuous sheet S is supplied. Thus, when the twisting and cutting of the continuous sheet S is finished and the upper pressing portion 41 is separated, a predetermined amount of covering is applied to the inside of the continuous sheet S whose lower end is closed by the twisting process. The package T can be supplied immediately. As a result, after the continuous sheet S is cut, the continuous sheet wrapped with the article to be packaged T can be immediately conveyed to the position of the package holder, and the next twisting operation can be performed.
　特に、供給パイプ２１の下端部が、上部押さえ部４１の近くまで延びているので、供給パイプ２１によって筒状を維持すると共に、供給パイプ２１の内部に次のひねり包装用の被包装物Ｔを整列した状態で待機させておくことができる。 In particular, since the lower end portion of the supply pipe 21 extends to the vicinity of the upper pressing portion 41, the supply pipe 21 maintains the cylindrical shape, and the supply object T for the next twist packaging is provided inside the supply pipe 21. It can be kept waiting in an aligned state.
　さらに、包装物保持部７によって被包装物Ｔが包み込まれた連続シートＳを保持した状態で連続シートＳのひねり加工及び切断加工を行うので、包装物Ｐは外観良好なひねり状態にできるし、機械の振動等が発生しても、被包装物Ｔが連続シートＳに対して位置ズレするのを防止できる。 Furthermore, since the continuous sheet S is twisted and cut while the continuous sheet S wrapped with the package T is held by the package holder 7, the package P can be in a twisted state with a good appearance, Even if mechanical vibration or the like occurs, it is possible to prevent the package T from being displaced from the continuous sheet S.
　なお、本実施形態１では、図１０に示す被包装物Ｔが包み込まれた連続シートＳのひねり加工と切断は、連続シートＳを間欠的に搬送して行ったが、図１１に示すように、連続シートＳを連続搬送しながらひねり加工と切断を行うこともできる。 In the first embodiment, the twisting and cutting of the continuous sheet S wrapped with the article T to be packaged shown in FIG. 10 is carried out by intermittently conveying the continuous sheet S. As shown in FIG. Further, twisting and cutting can be performed while continuously conveying the continuous sheet S.
　図１１（１）に示すように、下端がひねられて閉鎖されている連続シートＳ内に被包装物Ｔを供給した状態で連続シートＳを搬送する。図１１（２）に示すように、連続シートＳの被包装物Ｔが包み込まれた部分が包装物保持部７で保持される位置まで搬送されると、この部分を包装物保持部７で保持すると共に、上部押さえ部４１と下部押さえ部４２とで連続シートＳを扁平状に押さえつける。そして、第１及び第２ひねり部材４３ａ，４３ｂよりも上方の筒状の連続シートＳの内部に被包装物Ｔを供給しておく。 As shown in FIG. 11 (1), the continuous sheet S is conveyed in a state in which the article to be packaged T is supplied into the continuous sheet S that is twisted and closed at the lower end. As shown in FIG. 11 (2), when the portion of the continuous sheet S in which the package T is wrapped is conveyed to a position where it is held by the package holder 7, this portion is held by the package holder 7. At the same time, the upper pressing portion 41 and the lower pressing portion 42 press the continuous sheet S flatly. And the to-be-packaged goods T are supplied to the inside of the cylindrical continuous sheet S above the 1st and 2nd twist members 43a and 43b.
　連続シートＳが、上部押さえ部４１と下部押さえ部４２で扁平状に押さえつけられると、図１１（３）に示すように、上下駆動ユニット１０を駆動させて、回転ひねりユニット４全体を下降させる。回転ひねりユニット４を下降させながら、連続シートＳの搬送も続行して、第１及び第２ひねり部材４３ａ，４３ｂを進出させて、第１及び第２ひねり部材４３ａ，４３ｂにより連続シートＳを挟持する。 When the continuous sheet S is pressed flat by the upper pressing portion 41 and the lower pressing portion 42, as shown in FIG. 11 (3), the vertical drive unit 10 is driven and the entire rotary twist unit 4 is lowered. Continuing to convey the continuous sheet S while lowering the rotating twist unit 4, the first and second twist members 43a and 43b are advanced, and the continuous sheet S is sandwiched by the first and second twist members 43a and 43b. To do.
　さらに、回転ひねりユニット４の下降と、連続シートＳの搬送を続けながら、図１１（４）に示すように、下部押さえ部４２を連続シートＳから離反させて、第１及び第２ひねり部材４３ａ，４３ｂで連続シートＳを挟持したまま連続シートＳを切断し、第１及び第２ひねり部材４３ａ，４３ｂを回転させてひねり加工を行い、上部押さえ部４１を連続シートＳから離反させる。 Further, while continuing the lowering of the rotating twist unit 4 and the conveyance of the continuous sheet S, as shown in FIG. 11 (4), the lower pressing portion 42 is separated from the continuous sheet S, and the first and second twist members 43a. , 43b, the continuous sheet S is cut, the first and second twist members 43a, 43b are rotated to perform twisting, and the upper pressing portion 41 is separated from the continuous sheet S.
　次に、回転ひねりユニット４の下降と、連続シートＳの搬送を続けながら、図１１（５）に示すように、第１及び第２ひねり部材４３ａ，４３ｂを離反させると共に、包装物保持部７の保持を解除して、切り離された包装物Ｐを落下させる。 Next, while continuing the lowering of the rotating twist unit 4 and the conveyance of the continuous sheet S, as shown in FIG. 11 (5), the first and second twist members 43a and 43b are separated from each other, and the package holder 7 Is released, and the separated package P is dropped.
　包装物Ｐを落下させると、図１１（６）に示すように、連続シートＳの搬送を続けながら、回転ひねりユニット４を上部押さえ部４１と下部押さえ部４２とで連続シートＳを押さえつける位置まで上昇させる。下端部がひねりにより閉鎖された連続シートＳの内部には、上部押さえ部４１の離反により、既に所定量の被包装物Ｔが収容されているので、回転ひねりユニット４を所定の位置まで上昇させると直ぐに、図１１（２）に示すように、上部押さえ部４１と下部押さえ部４２で連続シートＳを押さえつけて、同様にして回転ひねりユニット４を下降させてひねり加工と切断を行う。 When the package P is dropped, as shown in FIG. 11 (6), the rotary twist unit 4 is moved to a position where the upper pressing portion 41 and the lower pressing portion 42 press the continuous sheet S while continuing to convey the continuous sheet S. Raise. Since a predetermined amount of the package T is already accommodated in the continuous sheet S whose lower end portion is closed by twisting due to the separation of the upper pressing portion 41, the rotary twist unit 4 is raised to a predetermined position. Immediately, as shown in FIG. 11 (2), the continuous sheet S is pressed by the upper pressing portion 41 and the lower pressing portion 42, and the rotary twisting unit 4 is lowered in the same manner to perform twisting and cutting.
　このように、上下駆動ユニット１０によって回転ひねりユニット４の全体を上下方向に移動可能にすることで、連続シートＳの搬送を間欠的に停止させてひねり加工と切断加工とを行うのではなく、連続シートＳを搬送しながら回転ひねりユニット４を下降させて、ひねり加工及び切断加工を行うことができるので、時間の無駄がない連続ひねり加工を行って包装物の生産性を向上できる。 In this way, by making the entire rotary twist unit 4 movable in the vertical direction by the vertical drive unit 10, the conveyance of the continuous sheet S is intermittently stopped, and the twist process and the cutting process are not performed. Since the rotating and twisting unit 4 can be lowered while conveying the continuous sheet S to perform twisting and cutting, continuous twisting without wasting time can be performed to improve the productivity of the package.
　なお、上記実施形態１では、第１及び第２ひねり部材４３ａ，４３ｂの上方と下方に、上部押さえ部４１と下部押さえ部４２とを設けたが、上部押さえ部４１及び下部押さえ部４２は設けず、第１及び第２ひねり部材４３ａ，４３ｂのみで筒状の連続シートＳを挟持することもできる。この場合には、第１及び第２ひねり部材４３ａ，４３ｂによって連続シートＳが押さえつけられると、供給パイプ２１から次に包装する被包装物Ｔを供給して、供給パイプ２１の下部で被包装物Ｔを待機させる。 In the first embodiment, the upper pressing portion 41 and the lower pressing portion 42 are provided above and below the first and second twist members 43a and 43b. However, the upper pressing portion 41 and the lower pressing portion 42 are provided. It is also possible to sandwich the cylindrical continuous sheet S with only the first and second twist members 43a and 43b. In this case, when the continuous sheet S is pressed by the first and second twist members 43 a and 43 b, the article T to be packaged next is supplied from the supply pipe 21, and the article to be packaged is provided below the supply pipe 21. Wait T
［実施形態２］
　また、本発明のひねり包装装置は、図１２の実施形態２のひねり包装装置１に示すように、搬送ユニットを設けずに、又は、搬送ユニットがある場合には搬送ユニットを駆動させずに、上下駆動ユニット１０の駆動による回転ひねりユニット４全体の下降を利用して、連続シートＳを上部押さえ部４１及び下部押さえ部４２、第１及び第２ひねり部材４３ａ，４３ｂ、包装物保持部７で保持して下方に搬送しながらひねり包装を行うこともできる。 [Embodiment 2]
Moreover, as shown in the twist wrapping apparatus 1 of Embodiment 2 of FIG. 12, the twist wrapping apparatus of the present invention does not provide a transport unit, or if there is a transport unit, without driving the transport unit. Utilizing the lowering of the entire rotary twist unit 4 by the drive of the vertical drive unit 10, the continuous sheet S is moved by the upper pressing part 41 and the lower pressing part 42, the first and second twisting members 43 a and 43 b and the package holding part 7. Twist packaging can also be performed while holding and transporting downward.
　図１２に示すひねり包装装置１は、搬送ユニットが無い点を除き、前記した実施形態１の構成と同じであり、同じ構成部分は同じ符号で示す。さらに、図１２に示すひねり包装装置１は、連続シートＳを上部押さえ部４１及び下部押さえ部４２、第１及び第２ひねり部材４３ａ，４３ｂ、包装物保持部７で保持して搬送する点を除き、その他の構成部分の動作である図１２（２）から（５）に示す動作は、実施形態１の図１１（２）から（５）に示す動作と同じなので説明を省略する。 The twist wrapping apparatus 1 shown in FIG. 12 is the same as the configuration of the first embodiment except that there is no transport unit, and the same components are denoted by the same reference numerals. Furthermore, the twist packaging apparatus 1 shown in FIG. 12 has a point that the continuous sheet S is held and conveyed by the upper pressing portion 41 and the lower pressing portion 42, the first and second twisting members 43a and 43b, and the package holding portion 7. Except for this, the operations shown in FIGS. 12 (2) to (5), which are the operations of the other components, are the same as the operations shown in FIGS.
　本実施形態２のひねり包装装置１は、回転ひねりユニット４全体を上下駆動ユニット１０によって下降させる距離が実施形態１と異なる。具体的には、図１２（５）に示すように、第１及び第２ひねり部材４３ａ，４３ｂ、包装物保持部７の保持を解除する位置が、その後に回転ひねりユニット４を上昇させた時に、第１及び第２ひねり部材４３ａ，４３ｂが連続シートＳ内に収容されている被包装物Ｔより上昇位置で連続シートＳのみを挟持できる位置となるまで下降させる。 The twist wrapping apparatus 1 of the second embodiment is different from the first embodiment in the distance that the entire rotary twist unit 4 is lowered by the vertical drive unit 10. Specifically, as shown in FIG. 12 (5), when the position where the first and second twist members 43a and 43b and the package holder 7 are released is raised after that, the rotary twist unit 4 is raised. The first and second twist members 43a and 43b are lowered from the package T accommodated in the continuous sheet S to a position where only the continuous sheet S can be sandwiched at the elevated position.
　このように、第１及び第２ひねり部材４３ａ，４３ｂ、包装物保持部７で連続シートＳを挟持しながら連続シートＳを下降させることにより、回転ひねりユニット４を上昇させている時に連続シートＳは停止した状態になるが、搬送ユニット３を省略できるので、構造が簡単になる。なお、実施形態２のひねり包装装置１の場合も、第１及び第２ひねり部材４３ａ，４３ｂを熱シール可能な構成としている。 In this way, the continuous sheet S is lowered when the rotary twist unit 4 is raised by lowering the continuous sheet S while holding the continuous sheet S between the first and second twist members 43a and 43b and the package holder 7. However, since the transport unit 3 can be omitted, the structure is simplified. In addition, also in the case of the twist packaging apparatus 1 of Embodiment 2, the 1st and 2nd twist members 43a and 43b are set as the structure which can be heat-sealed.
［実施形態３］
　実施形態３のひねり包装装置１Ａは、さらに、連続シートＳの開放部分を熱シールした包装形態とするものである。具体的に、実施形態３のひねり包装装置１Ａは、図１３、図１４に示すように、搬送ユニット３Ａは、供給パイプ２１に沿う筒状の連続シートＳの重なり部分を一定の加圧力で供給パイプ２１に押しつけながら加熱して連続シートＳの長手方向に沿って縦に熱シールする縦シールユニット３５０（縦シール機構）を備える。縦シールユニット３５０は、加熱されて筒状連続シートＳの重なり部分に圧接するヒータブロック３５０ａと、ヒータブロック３５０ａを支持するヒータ支持部材３５０ｂとを備える。 [Embodiment 3]
The twist wrapping apparatus 1 </ b> A according to the third embodiment further has a packaging form in which the open portion of the continuous sheet S is heat-sealed. Specifically, as illustrated in FIGS. 13 and 14, the twist packaging apparatus 1 </ b> A according to the third embodiment supplies the overlapping portion of the cylindrical continuous sheet S along the supply pipe 21 with a constant pressure. A vertical seal unit 350 (longitudinal seal mechanism) is provided that heats the pipe 21 while being pressed and heat-seals vertically along the longitudinal direction of the continuous sheet S. The vertical seal unit 350 includes a heater block 350a that is heated and pressed against an overlapping portion of the cylindrical continuous sheet S, and a heater support member 350b that supports the heater block 350a.
　また、実施形態３のひねり包装装置１Ａは、搬送ユニット３Ａの下方に配置され、筒状連続シートＳの途中を連続シートＳの幅方向に対して熱シールする横シールユニット４Ａ（横シール機構）を備える。この横シールユニット４Ａは、実施形態１の回転ひねりユニット４と対応した構成を有し、筒状連続シートＳを横に熱シールするとともに、ひねる動作を行う。すなわち、実施形態１の第１及び第２ひねり部材４３ａ，４３ｂにヒータを設けて第１及び第２横シール部材４３０ａ，４３０ｂとする。従って、この第１及び第２横シール部材４３０ａ，４３０ｂは、連続シートＳを挟持する面が加熱されて筒状の連続シートＳを熱シール及びひねり加工を行うように構成されている。また、実施形態１のひねり部材開閉機構５は、横シール部材開閉機構として構成される。 Further, the twist wrapping apparatus 1A according to the third embodiment is disposed below the transport unit 3A and heat seals the middle of the cylindrical continuous sheet S in the width direction of the continuous sheet S (horizontal seal mechanism). Is provided. This horizontal seal unit 4A has a configuration corresponding to that of the rotary twist unit 4 of the first embodiment, and heats the cylindrical continuous sheet S horizontally and performs a twisting operation. That is, the first and second twist members 43a and 43b of the first embodiment are provided with heaters to form the first and second horizontal seal members 430a and 430b. Accordingly, the first and second horizontal seal members 430a and 430b are configured such that the surface sandwiching the continuous sheet S is heated to heat seal and twist the cylindrical continuous sheet S. The twist member opening / closing mechanism 5 of the first embodiment is configured as a horizontal seal member opening / closing mechanism.
　縦シールユニット３５０及び第１及び第２横シール部材４３０ａ，４３０ｂの各々のヒータには、スリップリング６６を介して電源が供給されるようにすることができる。実施形態３のひねり包装装置１Ａのその他の構成は、実施形態１の構成と同じであるので、図１３、図１４において、実施形態１を示す図１、図２と同じ符号を付してその説明を省略する。 Power can be supplied to the heaters of the vertical seal unit 350 and the first and second horizontal seal members 430a and 430b via the slip ring 66. The other configuration of the twist wrapping apparatus 1A of the third embodiment is the same as the configuration of the first embodiment. Therefore, in FIGS. 13 and 14, the same reference numerals as those in FIGS. Description is omitted.
（動作の説明）
　次に、実施形態３のひねり包装装置１Ａによる筒状連続シートＳの熱シール、ひねり及び切断の動作について、図１５に基づいて説明する。包装装置１Ａは、制御装置１２により各機器を駆動制御することによって熱シール、ひねり及び切断が行われる。 (Description of operation)
Next, operations of heat sealing, twisting and cutting of the cylindrical continuous sheet S by the twist packaging apparatus 1A of Embodiment 3 will be described with reference to FIG. The packaging device 1 </ b> A is heat-sealed, twisted, and cut by driving and controlling each device by the control device 12.
　まず、手動により、連続シートＳをリールから繰り出して、フォーマー２２によりＵ字状に湾曲させて供給パイプ２１とフォーマー２２との間に進入させ、幅方向両端部をスリットから外方に突出させて筒状に整形する。筒状に整形された連続シートＳを搬送ユニット３Ａを通過させて横シールユニット４Ａの下端まで引き出し、連続シートＳを搬送可能状態にしておく。 First, the continuous sheet S is manually unwound from the reel, bent into a U shape by the former 22 and entered between the supply pipe 21 and the former 22, and both ends in the width direction are protruded outward from the slit. Shape it into a cylinder. The continuous sheet S shaped into a cylindrical shape is passed through the transport unit 3A and pulled out to the lower end of the horizontal seal unit 4A, so that the continuous sheet S can be transported.
　図示しない運転スイッチを投入して、縦シールユニット３５０により連続シートＳの幅方向両端部を熱シールして筒状連続シートＳを成形した後、搬送ユニット３Ａの搬送用駆動モータ３４を駆動させて無端搬送ベルト３１によって連続シートＳを横シールユニット４Ａにまで搬送し、横シールユニット４Ａを駆動させて横シールとひねりと切断とを行っておく。 An operation switch (not shown) is turned on, and both ends in the width direction of the continuous sheet S are heat-sealed by the vertical seal unit 350 to form the cylindrical continuous sheet S, and then the conveyance drive motor 34 of the conveyance unit 3A is driven. The continuous sheet S is conveyed to the horizontal seal unit 4A by the endless conveyance belt 31, and the horizontal seal unit 4A is driven to perform horizontal sealing, twisting, and cutting.
　筒状連続シートＳの下端が閉鎖された状態になったら、図１５（１）に示すように、ホッパから供給パイプ２１を介して所定量の被包装物Ｔを筒状連続シートＳ内に供給し、搬送ユニット３Ａの無端搬送ベルト３１により筒状連続シートＳを下方に搬送する。筒状連続シートＳは、下端が閉鎖されているので被包装物Ｔが抜け落ちることなく包まれた状態で下方に向けて搬送される。 When the lower end of the cylindrical continuous sheet S is closed, as shown in FIG. 15 (1), a predetermined amount of the package T is supplied from the hopper through the supply pipe 21 into the cylindrical continuous sheet S. Then, the cylindrical continuous sheet S is conveyed downward by the endless conveyance belt 31 of the conveyance unit 3A. Since the lower end of the cylindrical continuous sheet S is closed, the cylindrical continuous sheet S is conveyed downward in a state of being wrapped without falling off.
　そして、図１５（２）に示すように、被包装物Ｔを包み込んだ筒状連続シートＳが、包装物保持部７で保持される位置まで搬送されると搬送を一時停止する。搬送が停止されると、搬送ユニット３Ａ内の連続シートＳに対して縦シールが行われ、上部押さえ部４１の上部板状部材４１ａと下部押さえ部４２の下部板状部材４２ａが互いに進出して、包装物保持部７よりも上方の筒状連続シートＳの部分が、上部板状部材４１ａと下部板状部材４２ａとで扁平になるように押さえられる。また、包装物保持部７において、６枚の保持プレート７１で被包装物Ｔが包まれた筒状連続シートＳの全周囲が保持される。 And as shown in FIG. 15 (2), if the cylindrical continuous sheet S which wrapped the to-be-packaged object T is conveyed to the position hold | maintained at the package holding part 7, conveyance will be stopped temporarily. When the conveyance is stopped, vertical sealing is performed on the continuous sheet S in the conveyance unit 3A, and the upper plate member 41a of the upper pressing portion 41 and the lower plate member 42a of the lower pressing portion 42 advance to each other. The portion of the cylindrical continuous sheet S above the package holder 7 is pressed by the upper plate member 41a and the lower plate member 42a so as to be flat. Further, in the package holding unit 7, the entire circumference of the cylindrical continuous sheet S in which the package T is wrapped by the six holding plates 71 is held.
　なお、上部押さえ部４１により筒状連続シートＳが押さえつけられると、供給パイプ２１からは、次に包装する被包装物Ｔが上下に整列した状態で確実に供給され、図１５（３）に示すように、供給パイプ２１の下部で被包装物Ｔが待機する。さらに、図１５（３）に示すように、第１及び第２横シール部材４３０ａ，４３０ｂが進出して、上部板状部材４１ａと下部板状部材４２ａとによって押さえられて扁平状態となっている筒状連続シートＳを挟持し、熱シールする。 When the cylindrical continuous sheet S is pressed down by the upper pressing portion 41, the articles to be packaged T to be packed next are reliably supplied from above the supply pipe 21 while being vertically aligned, as shown in FIG. 15 (3). As described above, the article to be packaged T waits at the lower part of the supply pipe 21. Further, as shown in FIG. 15 (3), the first and second lateral seal members 430a and 430b advance and are pressed by the upper plate member 41a and the lower plate member 42a to be in a flat state. The cylindrical continuous sheet S is sandwiched and heat sealed.
　次に、筒状連続シートＳは、第１及び第２横シール部材４３０ａ，４３０ｂによって挟持されたまま、図１５（４）に示すように、カッター９１を進出させて筒状連続シートＳの第１及び第２横シール部材４３０ａ，４３０ｂで挟持されている中間位置を切断する。 Next, the cylindrical continuous sheet S is held between the first and second horizontal seal members 430a and 430b, and the cutter 91 is advanced as shown in FIG. The intermediate position sandwiched between the first and second horizontal seal members 430a and 430b is cut.
　そして、図１５（４）に示すように、被包装物Ｔを包み込んだ筒状連続シートＳを包装物保持部７の保持プレート７１で保持した状態で、第１及び第２横シール部材４３０ａ，４３０ｂにより切断された筒状連続シートＳを挟持したまま回転駆動部６により第１及び第２横シール部材４３０ａ，４３０ｂを一回転させる。筒状連続シートＳは、第１及び第２横シール部材４３０ａ，４３０ｂで挟持されたまま、第１及び第２横シール部材４３０ａ，４３０ｂよりも上方と下方の２箇所でひねられる。第１及び第２横シール部材４３０ａ，４３０ｂを回転させる際に、下部押さえ部４２の下部板状部材４２ａを筒状連続シートＳから離反させておく。そして、ひねりが終わると上部押さえ部４１の上部板状部材４１ａを筒状連続シートＳから離反させる。 And as shown in FIG. 15 (4), in the state which hold | maintained the cylindrical continuous sheet S which wrapped the to-be-packaged goods T with the holding plate 71 of the package holding part 7, 1st and 2nd horizontal seal member 430a, The first and second horizontal seal members 430a and 430b are rotated once by the rotation driving unit 6 while holding the cylindrical continuous sheet S cut by 430b. The cylindrical continuous sheet S is twisted at two locations above and below the first and second horizontal seal members 430a and 430b while being sandwiched between the first and second horizontal seal members 430a and 430b. When rotating the first and second horizontal seal members 430a and 430b, the lower plate-like member 42a of the lower pressing portion 42 is separated from the cylindrical continuous sheet S. When the twisting ends, the upper plate member 41a of the upper pressing portion 41 is separated from the cylindrical continuous sheet S.
　包装物保持部７では、ひねりを行う際、保持プレート７１で被包装物Ｔを包み込んだ筒状連続シートＳを保持した状態を維持するので、第１及び第２横シール部材４３０ａ，４３０ｂを回転させても、被包装物Ｔを包み込んだ筒状連続シートＳの部分が回転することなく、筒状連続シートＳのひねりを確実に行うことができる。 In the package holding unit 7, when the twist is performed, the holding plate 71 maintains the cylindrical continuous sheet S wrapped with the package T, and thus the first and second horizontal seal members 430 a and 430 b are rotated. Even if it makes it, the cylindrical continuous sheet S can be twisted reliably, without rotating the part of the cylindrical continuous sheet S which wrapped the to-be-packaged object T. FIG.
　筒状連続シートＳの切断とひねりが終了すると、図１５（５）に示すように、第１及び第２横シール部材４３０ａ，４３０ｂを後退させると共に、包装物保持部７によるシートの保持が解除され、切断された筒状シートで被包装物Ｔが覆われた包装物Ｐが落下する。落下した包装物Ｐは、上下両端部にシール部分とひねり部分とを有する。また、搬送ユニット３Ａに位置する筒状連続シートＳは、下端部が熱シール及びひねりにより閉鎖された状態になっているので上部板状部材４１ａが離反しても、供給パイプ２１の下部で待機している被包装物Ｔは、筒状連続シートＳのひねり部分で受け止められて落下しない。 When the cutting and twisting of the cylindrical continuous sheet S is completed, as shown in FIG. 15 (5), the first and second horizontal seal members 430a and 430b are retracted, and the holding of the sheet by the package holding unit 7 is released. Then, the package P in which the package T is covered with the cut cylindrical sheet falls. The dropped package P has a seal portion and a twist portion at both upper and lower ends. In addition, the cylindrical continuous sheet S located in the transport unit 3A is in a state where the lower end portion is closed by heat sealing and twisting, so that even if the upper plate-like member 41a is separated, it waits at the lower portion of the supply pipe 21. The to-be-packaged object T is received by the twisted portion of the cylindrical continuous sheet S and does not fall.
　２箇所のひねり部分を有する包装物Ｐが落下すると、図５（１）に示すように、筒状連続シートＳの搬送が再び開始されて、筒状連続シートＳは、被包装物Ｔが包み込まれた部分が包装物保持部７で保持される位置になるまで搬送されて、包装物保持部７で保持される。以後、同様にして筒状連続シートＳの熱シール、ひねり及び切断が行われる。 When the package P having two twisted parts falls, as shown in FIG. 5 (1), the conveyance of the cylindrical continuous sheet S is started again, and the package T is wrapped around the cylindrical continuous sheet S. It is conveyed until it reaches a position where it is held by the package holder 7 and is held by the package holder 7. Thereafter, the cylindrical continuous sheet S is similarly heat sealed, twisted and cut.
　以上説明したように、本実施形態３に係る包装装置１Ａによれば、筒状連続シートＳの下端部が熱シールされると共にひねられて閉鎖された状態で、筒状連続シートＳの内部に被包装物Ｔを供給した後に、上部の熱シールとひねりと切断とを行うので、複数の被包装物Ｔでも確実にシール・ひねり包装を行うことができる。 As described above, according to the packaging device 1A according to the third embodiment, the lower end portion of the cylindrical continuous sheet S is heat-sealed and twisted and closed in the cylindrical continuous sheet S. After supplying the article to be packaged T, the upper part is heat sealed, twisted, and cut, so that a plurality of articles to be packaged T can be reliably sealed and twisted.
　さらに、上部押さえ部４１によって筒状連続シートＳを押さえつけている間に、上部押さえ部４１より上方の筒状連続シートＳの内部に所定量の被包装物Ｔを供給しておいて、筒状連続シートＳの熱シール及びひねりを行うので、筒状連続シートＳの熱シール、ひねり及び切断が終了して、上部押さえ部４１を離反させた時点で、シール・ひねりによって下端が閉鎖された筒状連続シートＳの内部に所定量の被包装物Ｔをすぐに供給することができる。その結果、筒状連続シートＳの切断後、被包装物Ｔを包み込んだ筒状連続シートＳを直ぐに包装物保持部７の位置まで搬送して、次のシール・ひねり動作に移ることができる。 Furthermore, while pressing the cylindrical continuous sheet S by the upper pressing portion 41, a predetermined amount of the article T to be packaged is supplied into the cylindrical continuous sheet S above the upper pressing portion 41, and the cylindrical shape is reached. Since the continuous sheet S is heat-sealed and twisted, the bottom end of the cylindrical continuous sheet S is closed by sealing and twisting when the heat-sealing, twisting and cutting of the continuous sheet S are finished and the upper pressing portion 41 is separated. A predetermined amount of the package T can be immediately supplied into the continuous sheet S. As a result, after the cylindrical continuous sheet S is cut, the cylindrical continuous sheet S enclosing the article to be packaged T can be immediately conveyed to the position of the package holder 7 and can be moved to the next sealing / twisting operation.
　なお、上部板状部材４１ａで、筒状連続シートＳを押さえておいて、被包装物Ｔを筒状連続シートＳ内に落下させて待機させておくので、被包装物Ｔが落下するときの圧力衝撃が直接連続シートＳのシール部分に作用することがない。そのため、連続シートＳはホットタック性(熱間シール性)が多少悪くても、被包装物Ｔの圧力衝撃によるシール部分の破損が起こり難い。 In addition, since the cylindrical continuous sheet S is pressed down by the upper plate-like member 41a and the article to be packaged T is dropped into the cylindrical continuous sheet S and kept waiting, when the article to be packaged T falls The pressure shock does not directly act on the seal portion of the continuous sheet S. Therefore, even if the continuous sheet S has a slightly poor hot tack property (hot sealing property), the sealed portion is hardly damaged by the pressure impact of the package T.
　特に、供給パイプ２１の下端を横シールユニット４Ａの入口となる上部押さえ部４１の近くに位置させているので、供給パイプ２１によって筒状を維持すると共に、供給パイプ２１の内部に次のひねり包装用の被包装物Ｔを整列した状態で待機させておくことができる。 In particular, since the lower end of the supply pipe 21 is positioned near the upper pressing portion 41 serving as the inlet of the horizontal seal unit 4A, the supply pipe 21 maintains a cylindrical shape and the next twist wrapping is provided inside the supply pipe 21. It is possible to wait for the packaged goods T for use in an aligned state.
　さらに、包装物保持部７によって被包装物Ｔが包み込まれた筒状連続シートＳを保持した状態で筒状連続シートＳの熱シール、ひねり及び切断を行うので、包装物Ｐは外観良好なひねり状態にできるし、機械の振動等が発生しても、被包装物Ｔが筒状連続シートＳに対して位置ズレするのを防止できる。 Furthermore, since the cylindrical continuous sheet S is heat-sealed, twisted and cut in a state where the cylindrical continuous sheet S wrapped with the package T is held by the package holder 7, the package P is a twist with a good appearance. Even if mechanical vibration or the like occurs, it is possible to prevent the package T from being displaced from the cylindrical continuous sheet S.
　なお、上記実施形態３では、第１及び第２横シール部材４３０ａ，４３０ｂにより筒状連続シートＳを熱シールしてひねりを行ったが、第１及び第２横シール部材４３０ａ，４３０ｂを加熱することなく筒状連続シートＳを扁平状に挟持した状態でひねりを行って切断することもできる。このように包装することにより、上下に横シール部分を有さず、ひねり部分を有する包装物Ｐが得られる。 In the third embodiment, the cylindrical continuous sheet S is heat-sealed by the first and second horizontal seal members 430a and 430b and twisted. However, the first and second horizontal seal members 430a and 430b are heated. It is also possible to cut the tubular continuous sheet S by twisting it in a state of being held flat. By packaging in this way, a package P having a twisted portion without a horizontal seal portion at the top and bottom is obtained.
　また、本実施形態３の包装装置１Ａでは、第１及び第２横シール部材４３０ａ，４３０ｂは、それぞれ１つのブロックで形成したが、図１５に示すように、第１横シール部材４３０ａを上部第１横シール部材４４ａと下部第１横シール部材４５ａとに、また、第２横シール部材４３０ｂを上部第２横シール部材４４ｂと下部第２横シール部材４５ｂとに個別に構成し、上部第１横シール部材４４ａと下部第１横シール部材４５ａとの間にカッター９１を配置することもできる。 Further, in the packaging device 1A of the third embodiment, each of the first and second horizontal seal members 430a and 430b is formed by one block. However, as shown in FIG. The first horizontal seal member 44a and the lower first horizontal seal member 45a, and the second horizontal seal member 430b are individually configured as an upper second horizontal seal member 44b and a lower second horizontal seal member 45b, and the upper first A cutter 91 may be disposed between the horizontal seal member 44a and the lower first horizontal seal member 45a.
　この場合、上部第１横シール部材４４ａと上部第２横シール部材４４ｂとだけを密着させて回転させたり、下部第１横シール部材４５ａと下部第２横シール部材４５ｂとだけを密着させて回転させたりすることができるように構成する。このように構成することにより、図１６に示すように、上部第１及び上部第２横シール部材４４ａ，４４ｂを回転させることなく熱シールのみ行い、下部第１及び下部第２横シール部材４５ａ，４５ｂを熱シールして回転させて、下端部がシール部分のみで上端部がシール部分とひねり部分とを有する包装物Ｐが得られる。また、上端部がひねり無しのシール部分のみで、下端部がシール部分とひねり部分とを有したり、下端部がひねり無しのシール部分のみで上端部がシール無しのひねり部分のみとしたり、または、上端部がひねり無しのシール部分のみで下端部がシール無しのひねり部分のみとする包装物Ｐも得られる。 In this case, only the upper first horizontal seal member 44a and the upper second horizontal seal member 44b are brought into close contact with each other for rotation, or only the lower first horizontal seal member 45a and the lower second horizontal seal member 45b are brought into close contact with each other for rotation. It is configured so that it can be used. By configuring in this way, as shown in FIG. 16, only the heat sealing is performed without rotating the upper first and upper second horizontal sealing members 44a, 44b, and the lower first and lower second horizontal sealing members 45a, 45b is heat-sealed and rotated to obtain a package P having a lower end portion only with a seal portion and an upper end portion with a seal portion and a twist portion. Also, the upper end is only a seal portion without a twist, the lower end has a seal portion and a twist portion, the lower end is only a seal portion without a twist, and the upper end is only a twist portion without a seal, or Also, a package P having only the sealed portion with the upper end portion having no twist and the lower end portion having only the twist portion without seal is also obtained.
　また、本実施形態３のひねり包装装置１Ａによれば、図１７に示すように、第１及び第２横シール部材４３０ａ，４３０ｂを回転させることなく、熱シールのみ行って、通常のピロー包装のみを行うこともできる。この場合、被包装物Ｔが供給された筒状連続シートＳを包装物保持部７で保持しながら第１及び第２横シール部材４３０ａ，４３０ｂで挟持して熱シールを行う。その結果、筒状連続シートＳ内に多めの被包装物Ｔを供給しても、被包装物Ｔを筒状連続シートＳ越しに包装物保持部７で保持するので、被包装物Ｔの荷重で筒状連続シートＳが破断することなく確実に上部の熱シール及び切断を行うことができる。 In addition, according to the twist wrapping apparatus 1A of the third embodiment, as shown in FIG. 17, only heat sealing is performed without rotating the first and second horizontal seal members 430a and 430b, and only normal pillow wrapping is performed. Can also be done. In this case, the cylindrical continuous sheet S to which the article to be packaged T is supplied is sandwiched between the first and second horizontal seal members 430a and 430b while being held by the package holder 7, and heat sealing is performed. As a result, even if a large amount of package T is supplied into the cylindrical continuous sheet S, the package T is held by the package holder 7 over the cylindrical continuous sheet S. Thus, it is possible to reliably heat seal and cut the upper portion of the cylindrical continuous sheet S without breaking.
　なお、本発明は上記各実施形態に限定されるものではなく、請求の範囲内において種々の変形が可能である。
　また、本発明のひねり包装装置で包装される被包装物としては、特に限定されず、例えば、食品では、キャンディ、ラムネ、おかき、グミ等の固体物や、餡子などの練り物、ゼリー状の物、さらには、食品以外の物では、石鹸・フィルム球体内に液体が入った入浴剤・などフィルムや紙等のシートで包装される物であれば本発明のひねり包装装置で包装することができる。従って、本発明のひねり包装装置によれば、上記各実施形態のように被包装物を上下に整列させた状態でひねり包装もできるし、例えば、多数の小さいバラもの食品を一塊にしてひねり包装することもできる。 The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims.
In addition, the package to be packaged by the twist wrapping apparatus of the present invention is not particularly limited. For example, in foods, solid products such as candy, ramune, rice cake and gummy, kneaded products such as eggplant, and jelly-like products In addition to foods, and foods other than foods, soaps, bathing agents with liquids in film spheres, etc. can be packaged with the twist wrapping device of the present invention as long as they are packaged with a sheet of film or paper. it can. Therefore, according to the twist wrapping apparatus of the present invention, twist wrapping can be performed in a state where the objects to be packaged are vertically aligned as in each of the above embodiments. For example, a large number of small rose foods can be twisted and packaged. You can also
　さらに、シール・ひねり包装を行う場合には、液体、粘体、固液混合、粉体、流体、バラもの食品など、熱可塑性フィルム等のシートでシール包装できる物であれば本発明のひねり包装装置で包装することができる。例えば、液体、粘体、固液混合であれば、スープ、みそ、マヨネーズ、餡子などが挙げられる。粉体であれば、調味料、小麦粉、グラニュー糖、粉末コーヒー、粉石けんなどが挙げられる。粒体であれば、コーヒー豆、キャンディ、ナッツ類、豆菓子、穀類などが挙げられる。 Furthermore, in the case of sealing / twisting packaging, the twist packaging apparatus of the present invention can be used as long as it can be sealed with a sheet of thermoplastic film, such as liquid, viscous body, solid-liquid mixture, powder, fluid, and loose food. Can be packaged in. For example, soup, miso, mayonnaise, eggplant, etc. can be used in the case of liquid, mucilage, and solid-liquid mixing. Examples of powders include seasonings, wheat flour, granulated sugar, powdered coffee, and powdered soap. If it is a granule, coffee beans, candy, nuts, bean confectionery, cereals, etc. may be mentioned.
１，１Ａ　ひねり包装装置
３，３Ａ　搬送ユニット
４　回転ひねりユニット
４Ａ　横シールユニット
５　ひねり部材開閉機構
６　回転駆動部
７　包装物保持部
１０　上下駆動ユニット
１２　制御装置
２１　供給パイプ
４１　上部押さえ部
４１ａ　上部板状部材
４２　下部押さえ部
４２ａ　下部板状部材
４３ａ　第１ひねり部材
４３ｂ　第２ひねり部材
５１ａ　第１取付け部材
５１ｂ　第２取付け部材
５４ａ　第１カムフォロア
５４ｂ　第２カムフォロア
５５ａ　第１カムフォロアプレート
５５ｂ　第２カムフォロアプレート
５６ａ　第１開閉カム
５６ｂ　第２開閉カム
５８ｄ　短ロッド
５８ｅ　長ロッド
５８ｆ　開閉従動レバー
５８ｇ　駆動軸
５８ｈ　開閉駆動レバー
５８ｊ　クランクアーム
５８ｋ　開閉駆動モータ
５８ｍ　円板
６１　大平歯車
７１　保持プレート
９１　カッター
３５０　縦シールユニット
４３０ａ　第１横シール部材
４３０ｂ　第２横シール部材
Ｔ　被包装物
Ｓ　連続シート DESCRIPTION OF SYMBOLS 1,1A Twist packaging apparatus 3,3A Conveyance unit 4 Rotation twist unit 4A Horizontal seal unit 5 Twist member opening-and-closing mechanism 6 Rotation drive part 7 Package holding part 10 Vertical drive unit 12 Control apparatus 21 Supply pipe 41 Upper pressing part 41a Upper board Lower member 42a lower plate member 43a first twist member 43b second twist member 51a first attachment member 51b second attachment member 54a first cam follower 54b second cam follower 55a first cam follower plate 55b second cam follower plate 56a First open / close cam 56b Second open / close cam 58d Short rod 58e Long rod 58f Open / close driven lever 58g Drive shaft 58h Open / close drive lever 58j Crank arm 58k Open / close drive motor 58m Disc 61 Large spur gear 71 Holding plate 91 Cutter 350 Vertical shaft Ruyunitto 430a first lateral seal member 430b second horizontal sealing member T to be packaged S continuous sheet

Claims (10)

  1. 　幅方向に湾曲させて筒状に整形された連続シートの長手方向が上下方向となるように配置された途中を掴んでひねる回転ひねり機構と、制御部とを備え、
    　上記回転ひねり機構は、
    　水平方向に移動可能に対向配置され、筒状の連続シートを挟持して扁平状にするひねり部材と、
    　連続シートをひねり部材により押えた状態で、ひねり部材を回転させる回転駆動部と、
    　ひねり部材の上下中間位置の内部に水平方向に移動可能に配置され、ひねり部材によって挟持された連続シートを切断するカッターと、
    　ひねり部材の下方に配置され、被包装物が包み込まれた連続シートを保持する水平方向に移動可能な包装物保持部とを備えるひねり包装装置。     A rotation twist mechanism that grips and twists the middle of the continuous sheet that is curved in the width direction and shaped into a cylindrical shape so that the longitudinal direction is the vertical direction, and a control unit,
    The rotating twist mechanism is
    A twisting member that is disposed opposite to be movable in the horizontal direction and sandwiches a cylindrical continuous sheet to make it flat;
    A rotation drive unit that rotates the twisting member in a state where the continuous sheet is pressed by the twisting member;
    A cutter that is arranged so as to be movable in the horizontal direction inside the upper and lower intermediate positions of the twist member, and that cuts the continuous sheet sandwiched by the twist member;
    A twist wrapping apparatus comprising: a horizontally movable package holding unit that is disposed below a twist member and holds a continuous sheet in which a package is wrapped.
  2. 　請求項１に記載のひねり包装装置において、
    　上記回転ひねり機構は、更に、ひねり部材を水平方向に移動させるひねり部材開閉機構を備え、
    　上記ひねり部材開閉機構は、
    　各ひねり部材が上方に向けて突出するピン部を有し、
    　ひねり部材のピン部が嵌め合わされ、両端部が開放される半円の円弧溝を下面に有し、各円弧溝の両端開放部が接続することにより環状溝が形成されるように水平方向に移動可能に配置される１対の板状の開閉部材と、
    　開閉部材を水平方向に移動させる駆動機構とを備えるひねり包装装置。     The twist wrapping device according to claim 1,
    The rotating twist mechanism further includes a twist member opening / closing mechanism for moving the twist member in the horizontal direction,
    The twist member opening / closing mechanism is
    Each twist member has a pin portion protruding upward,
    It has a semicircular arc groove on the lower surface where the pin part of the twist member is fitted and both ends are open, and it moves horizontally so that an annular groove is formed by connecting the both ends open part of each arc groove A pair of plate-shaped opening and closing members arranged in a possible manner;
    A twist packaging apparatus comprising: a drive mechanism that moves the opening and closing member in the horizontal direction.
  3. 　請求項１または請求項２に記載のひねり包装装置において、
    　上記回転ひねり機構の上方に配置されて幅方向に湾曲させて筒状に整形された連続シートを下方に向けて搬送する搬送部と、
    　筒状に整形された連続シートの内部に配置され、回転ひねり機構の入口近くまで延ばされて被包装物が供給される供給パイプとを更に備え、
    　上記制御部は、
    　上記回転ひねり機構のひねり部材及び包装物保持部を移動させて連続シートを保持した後に、回転駆動部によるひねり部材の回転動作と、カッターによる連続シートの切断動作とを行う制御と、ひねり部材よりも上方位置で扁平状態となっている筒状の連続シートの内部へ供給パイプから被包装物を供給する制御と、搬送部により連続シートを搬送する制御とを行うように構成されているひねり包装装置。     In the twist packaging apparatus according to claim 1 or 2,
    A transport unit that is disposed above the rotating twist mechanism and that is curved in the width direction and is shaped into a cylindrical shape, and transports the continuous sheet downward;
    A feed pipe that is arranged inside the continuous sheet shaped into a cylindrical shape, is extended to near the entrance of the rotary twist mechanism, and is supplied with an article to be packaged,
    The control unit
    After moving the twisting member and the package holding part of the rotating twisting mechanism to hold the continuous sheet, the control for performing the rotating operation of the twisting member by the rotation driving part and the cutting operation of the continuous sheet by the cutter, and the twisting member Twist wrapping configured to perform control for supplying an article to be packaged from a supply pipe into a cylindrical continuous sheet that is flat at an upper position, and control for conveying the continuous sheet by a conveying unit. apparatus.
  4. 　請求項３に記載のひねり包装装置において、
    　上記回転ひねり機構全体を上下方向に移動可能とする上下駆動機構を更に備え、
    　上記制御部は、
    　上記上下駆動機構を駆動して回転ひねり機構全体を下方に移動させながら、ひねり部材及び包装物保持部による連続シートの押え動作、連続シート内への被包装物の供給動作、搬送部による連続シートの搬送動作、ひねり部材と回転駆動部とによるひねり動作、および、連続シートの切断動作を行い、シート切断後に、ひねり部材及び包装物保持部による連続シートの押え動作を解除して、回転ひねり機構全体を上昇させるように上下駆動機構を制御する構成とされているひねり包装装置。     In the twist packaging apparatus according to claim 3,
    Further comprising an up-and-down drive mechanism that allows the entire rotating twist mechanism to move in the up-and-down direction;
    The control unit
    While driving the above-described vertical drive mechanism to move the entire rotary twist mechanism downward, the continuous sheet pressing operation by the twisting member and the package holding unit, the supply operation of the article to be packaged in the continuous sheet, and the continuous sheet by the conveying unit Rotating and twisting mechanism which performs the conveying operation, the twisting operation by the twisting member and the rotation driving unit, and the cutting operation of the continuous sheet, and after the sheet is cut, the pressing operation of the continuous sheet by the twisting member and the package holding unit is released. A twist packaging device configured to control the vertical drive mechanism so as to raise the whole.
  5. 　請求項１～３のいずれか１項に記載のひねり包装装置において、
    　上記回転ひねり機構全体を上下方向に移動可能とする上下駆動機構を更に備え、
    　上記制御部は、
    　上記回転ひねり機構のひねり部材及び包装物保持部を移動させて連続シートを押さえて保持した後に、上記上下駆動機構を駆動して回転ひねり機構全体を下方に移動させながら、連続シート内への被包装物の供給動作、回転駆動部によるひねり部材の回転動作、および、カッターによる連続シートの切断動作を行い、シート切断後に、ひねり部材及び包装物保持部による連続シートの押え動作を解除して、回転ひねり機構全体を上昇させるように上下駆動機構を制御する構成とされているひねり包装装置。     The twist packaging device according to any one of claims 1 to 3,
    Further comprising an up-and-down drive mechanism that allows the entire rotating twist mechanism to move in the up-and-down direction;
    The control unit
    After moving the twisting member of the rotary twisting mechanism and the package holding part to hold and hold the continuous sheet, the vertical drive mechanism is driven to move the entire rotary twisting mechanism downward, while covering the continuous sheet. Supply operation of the package, rotation operation of the twist member by the rotation drive unit, and cutting operation of the continuous sheet by the cutter, after the sheet cutting, release the continuous sheet pressing operation by the twist member and the package holding unit, A twist wrapping device configured to control a vertical drive mechanism so as to raise the entire rotary twist mechanism.
  6. 　幅方向に湾曲させて筒状に整形された連続シートの長手方向が上下方向となるように配置され、この連続シートの幅方向両端部同士を長手方向にシールして筒状連続シートとする縦シール機構と、
    　上記縦シール機構の下方に配置され、筒状連続シートの途中を横方向にシールする横シール機構とを備え、
    　上記横シール機構は、
    　水平方向に移動可能に対向配置され、筒状連続シートを挟持して扁平状にした後に熱シール可能とする横シール部材と、
    　上記筒状連続シートを横シール部材により押えた状態で、横シール部材を回転させる回転駆動部と、
    　横シール部材の上下中間位置に水平方向に移動可能に配置され、横シール部材によって挟持された筒状連続シートを切断するカッターと、
    　横シール部材の下方に配置され、被包装物が包み込まれた筒状連続シートを保持する水平方向に移動可能な包装物保持部とを備えるひねり包装装置。     The continuous sheet that is curved in the width direction and arranged in a cylindrical shape is arranged so that the longitudinal direction is the vertical direction, and both ends in the width direction of the continuous sheet are sealed in the longitudinal direction to form a cylindrical continuous sheet. A sealing mechanism;
    A horizontal sealing mechanism that is disposed below the vertical sealing mechanism and seals the middle of the cylindrical continuous sheet in the horizontal direction;
    The horizontal sealing mechanism is
    A transverse seal member that is arranged to be movable in the horizontal direction and that can be heat-sealed after sandwiching a cylindrical continuous sheet and making it flat;
    A rotation drive unit that rotates the horizontal seal member in a state where the cylindrical continuous sheet is pressed by the horizontal seal member;
    A cutter that is arranged so as to be movable in the horizontal direction at the upper and lower intermediate positions of the horizontal seal member, and that cuts the cylindrical continuous sheet sandwiched by the horizontal seal member;
    A twist wrapping apparatus comprising: a horizontally movable package holding unit that is disposed below a horizontal seal member and holds a cylindrical continuous sheet in which an article to be wrapped is wrapped.
  7. 　請求項６に記載のひねり包装装置において、
    　上記横シール機構は、さらに、横シール部材を水平方向に移動させる横シール部材開閉機構を備え、
    　上記横シール部材開閉機構は、
    　各横シール部材が、上方に向けて突出するピン部を有し、
    　横シール部材のピン部が嵌め合わされ、両端部が開放される半円の円弧溝を下面に有し、各円弧溝の開放部が接続することにより環状溝が形成されるように水平方向に移動可能に配置される１対の板状の開閉部材と、
    　開閉部材を水平方向に移動させる駆動機構とを備えるひねり包装装置。     The twist packaging device according to claim 6,
    The horizontal seal mechanism further includes a horizontal seal member opening / closing mechanism for moving the horizontal seal member in the horizontal direction,
    The horizontal seal member opening and closing mechanism is
    Each lateral seal member has a pin portion protruding upward,
    The horizontal seal member has a semicircular arc groove on the lower surface that is fitted with the pin part of the horizontal seal member and is open at both ends, and moves in the horizontal direction so that an annular groove is formed by connecting the open part of each arc groove A pair of plate-shaped opening and closing members arranged in a possible manner;
    A twist packaging apparatus comprising: a drive mechanism that moves the opening and closing member in the horizontal direction.
  8. 　請求項６又は７に記載のひねり包装装置において、
    　上記横シール部材は、個別に動作する上部横シール部材と下部横シール部材とを備え、
    　上部横シール部材と下部横シール部材の少なくともどちらか一方は、上記回転駆動部により回転可能とされ、
    　上部横シール部材と下部横シール部材との間に上記カッターが配置されているひねり包装装置。     The twist packaging apparatus according to claim 6 or 7,
    The lateral seal member includes an upper lateral seal member and a lower lateral seal member that operate individually,
    At least one of the upper horizontal seal member and the lower horizontal seal member can be rotated by the rotation drive unit,
    A twist packaging device in which the cutter is disposed between an upper horizontal seal member and a lower horizontal seal member.
  9. 　請求項６～８のいずれか１項に記載のひねり包装装置において、
    　上記筒状連続シートを下方に向けて搬送する搬送部と、
    　上記筒状連続シートの内部に配置され、上記横シール機構の入口近くまで延ばされて被包装物が供給される供給パイプと、
    　搬送部の駆動、横シール機構の駆動、及び、供給パイプへの被包装物の供給を制御する制御部とを更に備え、
    　上記制御部は、横シール機構の横シール部材及び包装物保持部を移動させて筒状連続シートを保持した後に、横シール部材の加熱動作と、回転駆動部による横シール部材の回転動作と、カッターによる筒状連続シートの切断動作とを行う制御を行うと共に、横シール部材よりも上方位置で扁平状態となっている筒状連続シートの内部へ供給パイプから被包装物を供給する制御と、搬送部により筒状連続シートを搬送する制御とを行うように構成されているひねり包装装置。     The twist packaging apparatus according to any one of claims 6 to 8,
    A transport unit that transports the cylindrical continuous sheet downward;
    A supply pipe which is arranged inside the cylindrical continuous sheet and is extended to near the entrance of the lateral seal mechanism to be supplied with an article to be packaged;
    A drive unit for driving the conveyance unit, a drive unit for the lateral seal mechanism, and a control unit for controlling the supply of the packaged material to the supply pipe;
    The control unit moves the horizontal seal member and the package holding unit of the horizontal seal mechanism to hold the cylindrical continuous sheet, and then heats the horizontal seal member and rotates the horizontal seal member by the rotation drive unit. A control for performing a cutting operation of the cylindrical continuous sheet by the cutter, and a control for supplying an article to be packaged from the supply pipe to the inside of the cylindrical continuous sheet that is flat at a position higher than the horizontal seal member; A twist wrapping apparatus configured to perform control to transport a cylindrical continuous sheet by a transport unit.
  10. 請求項９に記載のひねり包装装置において、
    　上記横シール機構全体を上下方向に移動可能とする上下駆動機構を更に備え、
    　上記制御部は、上下駆動機構を駆動して横シール機構全体を下方に移動させながら、横シール部材及び包装物保持部による筒状連続シートの押え動作、筒状連続シート内への被包装物の供給動作、搬送部による筒状連続シートの搬送動作、横シール部材による熱シール動作、横シール部材と回転駆動部とによるひねり動作、および、筒状連続シートの切断動作を行い、シート切断後に、横シール部材及び包装物保持部による筒状連続シートの押え動作を解除して、横シール機構全体を上昇させるように上下駆動機構を制御する構成とされているひねり包装装置。     The twist wrapping device according to claim 9,
    A vertical drive mechanism that allows the entire horizontal seal mechanism to move in the vertical direction;
    The control unit drives the vertical drive mechanism to move the entire horizontal seal mechanism downward, while pressing the cylindrical continuous sheet by the horizontal seal member and the package holding unit, and the article to be packaged in the cylindrical continuous sheet Supply operation, transport operation of cylindrical continuous sheet by transport section, heat seal operation by horizontal seal member, twist operation by horizontal seal member and rotation drive section, and cutting operation of cylindrical continuous sheet, after sheet cutting A twist wrapping apparatus configured to control the vertical drive mechanism so as to lift the entire horizontal seal mechanism by releasing the pressing operation of the cylindrical continuous sheet by the horizontal seal member and the package holder.
PCT/JP2016/062832 2015-05-19 2016-04-22 Twist packaging device WO2016185875A1 (en)

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