JP4601589B2 - Rotary cutter unit and filling and packaging device - Google Patents

Description

  The present invention relates to a rotary cutter unit that draws and cuts a connecting portion of a packaging body connection band while sequentially pressing, and a filling and packaging apparatus using the rotary cutter unit.

  A package formed in the form of a bag (hereinafter abbreviated as a package) by overlapping the film and joining the edges of the film (hereinafter abbreviated as a package) is a package that contains instant foods and contents such as seasonings such as powder and liquid. Widely used as a body.

  In the filling and packaging apparatus for producing such a package, the package is generally produced as follows.

  That is, first, one strip-shaped film is folded in the width direction or two strip-shaped films are stacked (stacking process).

  And the connection part formed by joining this overlapping film in strip shape over the full width in the predetermined space | interval of a longitudinal direction is formed (connection part process). Thereby, when one belt-like film is folded in the width direction, the region between the connecting portions becomes a bag portion in which the side edge of the film is open. In addition, when two belt-like films are overlapped, a side edge portion formed by joining the belt film along the side edge is formed on one side edge of the overlap film (side edge processing), A region defined by the connecting portion and the side edge portion is a bag portion having one side edge opened.

  Then, the contents are filled from the opening into the area defined by the connecting portion and the side edge (filling process).

  And an opening part is joined by a side edge part process or a connection part process. As a result, a package body in which the contents filled between the overlapping films are sealed by the connecting portion and the side edge portion is completed, and the completed package body is a package body in which the package body is connected by the connecting portion. It constitutes a connection band (packaging body connection band manufacturing process).

  And the packaging body connection belt | band | zone is cut according to the use use as needed. For example, each package is separated from the package coupling band at the coupling portion, or is separated as two or three packaging bodies in which perforations are cut into the coupling portion.

  Here, the cutter unit that performs the cutting process of the package needs to be configured so as to be compatible with two types of processing, that is, perforation cutting processing and separation processing. Techniques aimed at speeding up processing switching and simplifying the structure have been proposed.

  However, these Patent Documents 1 to 4 have a structure in which the receiving blade side is stationary and a rotating cutting blade cuts into a connecting portion in contact with the receiving blade. Therefore, since the time for the cutting blade to cut into the connecting portion is limited to the time for the connecting portion to be positioned on the receiving blade, there is a limit to increasing the moving speed of the connecting portion. In other words, the filling and packing speed of a so-called vertical filling and packaging apparatus as shown in FIG. 4 of Patent Document 1, FIG. 2 of Patent Document 2, FIG. 3 of Patent Document 3 and FIG. It was the limit of conversion.

On the other hand, the rotary-type filling and packaging apparatus as shown in FIG. 1 of each of Patent Documents 5 to 7 has a high filling and packaging speed of about 200 pieces per minute. In the cutter unit as shown in Patent Documents 1 to 4, It is difficult to follow, and a rotary cutter unit using a bladed roller as shown in FIG. 3 of Patent Documents 5 to 7 is generally used. That is, the rotary cutter unit can secure a longer time for the cutting blade to cut into the connecting portion on the receiving blade by rotating the receiving blade side in synchronization with the movement of the connecting portion. Suitable for packaging equipment.
Japanese Utility Model Publication No. 3-45809 JP-A-6-171623 JP 2000-62735 A JP 2001-72024 A JP 2000-355303 A JP 2001-225809 A JP 2004-359385 A

  Here, the switching operation of the perforation cutting process and the separation process in the case of using a roller with a blade is performed by, for example, cutting the perforation cutting blade and the separation as described in paragraph [0023] of Patent Document 6. It was common to replace the blades.

  However, replacing the blade increases the work burden on the operator and requires adjustment of the position of the blade edge after replacement, which takes a few tens of minutes at a minimum, leading to a decrease in production efficiency. It was.

  The present invention has been made in order to solve the above-described problems, and can switch the perforation cutting process and the separation process for the connecting part of the packaging connecting band in a shorter time than before. An object of the present invention is to provide a rotary cutter unit and a filling and packaging apparatus using the rotary cutter unit.

The present invention has been made to solve the above problems, and the rotary cutter unit according to the first aspect of the present invention has a plurality of blade receiving surfaces extending in a strip shape along the extending direction of the roller shaft in the circumferential direction of the roller shaft. A blade receiving roller having a roller surface arranged at equal intervals, and a plurality of cutting edges extending along the extending direction of the roller shaft are arranged at equal intervals in the circumferential direction of the roller shaft, and the roller surface is configured, and A bladed roller arranged in parallel so that the blade receiving surface and the blade tip are in contact with each other, and the blade receiving roller and the bladed roller rotate in opposite directions, respectively, and thereby the blade receiving surface and the A rotary cutter unit that cuts the connecting portion while sequentially pulling the connecting portion of the package connecting band between the blade edge and the relative rotational phase between the blade receiving roller and the roller with blade is at least first. Times More have been adjustably configured in the phase and the second rotation phase, the plurality of blade receiving surface, comprising a first contact region and the second contact region both extending in strip shape in the roller axis direction of the blade receiving roller When the relative rotational phase between the blade receiving roller and the roller with blade is adjusted to be the first rotational phase, the blade edge is any blade receiving surface. The blade edge is adjusted so that the relative rotational phase between the blade receiving roller and the roller with blade is the second rotational phase. Any blade receiving surface is contacted in the second contact area, and the first contact area of each of the blade receiving surfaces is entirely formed regardless of which blade receiving surface is formed. And the second contact area of each blade receiving surface is Being formed in those with multi-grooved surface formed in a plane by the surface are mixed. If comprised in this way, since the exchanging operation | work of a blade edge is not required when switching the cutting | disconnection form of a package body, the switching operation of the perforation cutting process and the cutting process with respect to the connection part of a packaging connection belt is quicker than before. It can be carried out. Here, the multi-groove surface refers to a surface in which a plurality of grooves are formed on a plane so as to extend in parallel to each other in a direction crossing the extending direction of the roller shaft.

A rotary cutter unit according to a second aspect of the present invention includes a blade receiving side gear mounted around the roller shaft of the blade receiving roller, and a blade side mounted around the roller shaft of the bladed roller and meshing with the blade receiving gear. And a gear
The mounting phase of the blade receiving side gear around the roller axis of the blade receiving roller in the mounting structure of the blade receiving roller and the blade receiving side gear, and the blade in the mounting structure of the roller with blade and the blade side gear It is preferable that at least one of the mounting phases of the blade side gear around the roller axis of the attached roller is adjustable. With this configuration, the blade receiving roller can be more easily adjusted by adjusting the mounting phase of the blade receiving side gear around the roller shaft of the blade receiving roller or by adjusting the mounting phase of the blade side gear around the roller shaft of the bladed roller. The rotation phase with the bladed roller can be adjusted.

The rotary cutter unit according to a third aspect of the present invention is formed on the sign of the mark formed on the roller shaft of the blade receiving roller and the mark formed on the blade receiving side gear, and on the roller shaft of the blade attaching roller. By at least one of the sign and the sign formed on the blade side gear,
In the mounting structure of the blade receiving roller and the blade receiving side gear, in the mounting structure of the blade receiving roller and the blade side gear, the selection of the mounting phase of the blade receiving side gear around the roller axis of the blade receiving roller. It is preferable that at least one of selection of the mounting phase of the blade side gear around the roller shaft of the bladed roller is possible. If comprised in this way, it will become possible to adjust the relative rotation phase between a blade receiving roller and a roller with a blade more easily by the agreement of a label | marker.

The rotary cutter unit of the fourth aspect of the present invention is configured such that the number of the blade receiving surfaces is an even number, and the second contact area of the adjacent blade receiving surfaces is a flat surface and a multi-groove surface. Good. If comprised in this way, since the replacement | exchange operation | work of a blade edge is not required for switching to the cutting-out process of a single package, and the cutting-out process of a 2 series package, it can carry out in a shorter time than before.

In the rotary cutter unit of the fifth aspect of the present invention, the number of the blade receiving surfaces is a multiple of 3, and the two contact areas are continuous on one plane in the three consecutive blade receiving surfaces, and the two multi-groove surfaces are continuous. It is good to be configured to do so. If comprised in this way, since the replacement | exchange operation | work of a blade edge is not required for switching to the cutting-out process of a single package and the cutting process of a triple package, it can carry out in a shorter time than before.

In the rotary cutter unit of the sixth aspect of the present invention, the relative rotational phase between the blade receiving roller and the roller with blade is added to the first rotational phase and the second rotational phase, and the third rotational phase is set. The plurality of blade receiving surfaces are all configured to be in a band shape in the roller axial direction of the blade receiving roller, in addition to the first contact region and the second contact region, and the blade receiving roller It is divided into a plurality of regions including a third contact region extending in a strip shape in the roller axial direction, and the relative rotational phase between the blade receiving roller and the roller with blade is the third rotational phase. When adjusted, the cutting edge contacts any blade receiving surface in its third contact region, the number of the blade receiving surfaces is a multiple of 6, and the first of the adjacent blade receiving surfaces is 2 Configure the contact area to be flat and multi-groove. Together they are, may the third contact region in three of the blade receiving face continuous is configured so that the two multi-grooved surface in one plane are continuous. If comprised in this way, since the blade receiving surface which a blade edge | tip contacts for every 1 rotation of a roll with a blade will shift | deviate one by one, a blade edge | tip will contact all the blade receiving surfaces equally. Therefore, since the wear of all the cutting edges can be made uniform, the replacement frequency of the cutting edges of the rotary cutter unit of the present invention can be further reduced.

  In the rotary cutter unit of the seventh aspect of the present invention, the difference between the number of blade edges of the roller with blade and the number of blade receiving surfaces of the blade receiving roller is preferably 1. If comprised in this way, since the blade receiving surface which a blade edge | tip contacts for every 1 rotation of a roll with a blade will shift | deviate one by one, a blade edge | tip will contact all the blade receiving surfaces equally. Therefore, since the wear of all the cutting edges can be made uniform, the replacement frequency of the cutting edges of the rotary cutter unit of the present invention can be further reduced.

The filling and packaging apparatus according to the eighth aspect of the present invention is a stacking process in which a single strip-shaped film is folded in the width direction or a stacked film formed by stacking two strip-shaped films, and the longitudinal direction of the stacked film. A connecting portion treatment for forming a connecting portion formed in a band shape over the entire width at a predetermined interval, and a side edge portion bonded in a band shape along the side edge at least one side edge of the overlap film. By the side edge processing to be formed and the filling processing of filling the contents inside the region defined by the connecting portion and the side edge, the contents filled between the overlapping films are connected to the connecting portion. A manufacturing unit for manufacturing a package connecting band formed by connecting the package sealed with the side edge portion by the connecting portion; and
The rotary cutter unit according to claim 1, which is disposed on the downstream side of the manufacturing unit. If comprised in this way, since the exchanging operation | work of a blade edge is not required when switching the cutting | disconnection form of a package body, the switching operation of the perforation cutting process and the cutting process with respect to the connection part of a packaging connection belt is quicker than before. It can be carried out.

  The rotary cutter unit of the present invention has an effect that the perforation cutting process and the cutting process for the connection part of the packaging connection band can be performed in a shorter time than before. Moreover, the filling packaging apparatus of this invention has an effect that the switching operation | work of the perforation | slicing cutting process and cutting | disconnection process with respect to the connection part of a packaging connection belt | band | zone can be performed in a shorter time than before.

The best mode for carrying out the present invention will be described below with reference to the drawings.
(First embodiment)
First, the structure of the filling and packaging apparatus 200 of this embodiment is demonstrated.

  FIG. 1 is a top view schematically showing a configuration example of the filling and packaging apparatus according to the first embodiment of the present invention. FIG. 2 is a view taken in the direction of arrow II in FIG. 3 is a view taken in the direction of arrow III in FIG. 4 is a view taken along arrow IV in FIG.

  In FIG. 1, the filling and packaging apparatus 200 includes a rotary cutter unit 7 on the downstream side of the packaging body connection band manufacturing unit in the distribution direction of the packaging body connection band PC.

  The package connecting band manufacturing unit is provided with an inner peripheral seal bar 1A and an outer peripheral seal bar 1B, a filling chute 2, a dispensing mass 3, a guide roller 4, a heat welding device 5, and a rotating drum 8. As shown in FIG. 3, a package connecting band PC in which the package P is connected from the film F by the connecting portion PA is manufactured.

  As shown in FIG. 4, the rotary cutter unit 7 separates the triple package P in which the perforation 101 is formed in the connecting portion PA.

  Here, the film F is composed of a resin film, a composite film in which a resin film and a metal foil are laminated, or the like. Therefore, the heat welding mentioned later is possible.

  The structure of the devices arranged here will be described.

  The rotating drum 8 is formed in a cylindrical shape, and is arranged so that the rotating shaft extends in the vertical direction and the circumferential surface rotates in a horizontal plane. Then, the film F is folded on the circumferential surface of the rotating drum 8 so that both sides thereof, that is, both edges in the width direction are overlapped, and wound so that the both ends of the film F are below. It has been turned.

  A plurality of inner peripheral seal bars 1 </ b> A are arranged extending in the vertical direction inside the peripheral wall of the rotary drum 8, and rotate together with the rotary drum 8. Further, the interval between the inner peripheral seal bars 1A and the interval between the connecting portions PA are substantially equal.

  The outer peripheral seal bar 1B is disposed in a pair with the inner peripheral seal bar 1A. In the drawing, the outer peripheral seal bar 1B is opposed to the inner peripheral seal bar 1A in the rotation section from the seal start point SS to the seal completion point SE. To position. Further, although not shown, in a rotation section other than the rotation section from the seal start point SS to the seal completion point SE, it rotates while retracting downward.

  In the drawing, the inner peripheral seal bar 1A and the outer peripheral seal bar 1B indicate that the rotary drum 8 is sandwiched between the main surfaces of the folded film F in the rotation section from the seal start point SS to the seal completion point SE of the rotary drum 8. Rotate and move on the circumference. As a result, the inner peripheral seal bar 1A and the outer peripheral seal bar 1B sandwich the film F that rotates and moves on the peripheral surface of the rotary drum 8, and heat the film F in strips at predetermined intervals in the longitudinal direction over its entire width. It welds and forms connection part PA. The connection part PA seals the boundary between the adjacent package bodies P, and a bag part is formed in a region partitioned between the connection parts PA. Further, the film F is sandwiched between the inner peripheral seal bar 1 </ b> A and the outer peripheral seal bar 1 </ b> B and pulled by the rotating operation of the rotary drum 8.

  The filling chutes 2 are arranged one by one above the adjacent inner circumferential seal bar 1A, and rotate and move along the circumferential surface of the drum 8 in synchronization with the inner circumferential seal bar 1A. Then, as shown in FIG. 3, the lower end enters between the folded films F. As a result, the contents discharged from the weighing cell 3 are guided into the package P of the package connection band PC.

  A plurality of the dispensing masses 3 are arranged on the circumference inscribed in the peripheral wall of the rotary drum 8 in a plan view so as to have substantially the same spacing as the inner circumferential seal bar 1A, and rotate around the circumference. In the figure, the mass 3 is positioned between the adjacent inner seal bars 1A in the rotation section from the filling start point FS to the filling completion point FE, and is parallel to the upper side of the rotating drum 8. As a result, the contents in the measuring mass 3 are filled into the package P through the filling chute 2.

  The guide roller 4 is disposed on the downstream side of the rotating drum 8 in the flow direction of the package assembly PC and in the vicinity of the outside of the sealing completion point SE of the rotating drum 8. As a result, the package connecting band PC filled with the contents is guided to the heat welding device 5.

  The heat welding device 5 is disposed on the downstream side of the guide roller 4 in the flow direction of the package assembly PC. The heat welding device 5 includes a pair of preheating bars 5A and a die roller 5B. Then, the preheating bar 5A and the die roller 5B are disposed so as to sandwich the side edge portion formed by overlapping both side edges of the film F one after another. As a result, the vicinity of the side edge of the film F is thermally welded to form a band-like side edge PF of the package P (see FIG. 4). The die roller 5B is rotated in opposite directions by a rotary drive device (not shown) in synchronism with the rotational operation of the rotary drum 8 so as to draw in the packaging body connection band PC.

  The rotary cutter unit 7 is disposed so as to sandwich the package assembly PC between the bladed roller 10 and the blade receiving roller 20.

  Here, the rotary cutter unit 7 which is a feature of the present invention will be described.

  FIG. 5 is a perspective view schematically showing a configuration example of the rotary cutter unit according to the first embodiment of the present invention.

  As shown in FIG. 5, the rotary cutter unit 7 includes a blade receiving roller 20 and a bladed roller 10 arranged in parallel.

  The blade receiving roller 20 has a roller surface in which six blade receiving surfaces 23, 24, 25, 26, 27, 28 extending in a strip shape along the extending direction of the roller shaft 21 are arranged at equal intervals in the circumferential direction. .

  The roller with blade 10 has a roller surface in which the cutting edges of five cutting blades 13 extending radially from the roller shaft 11 and extending along the extending direction of the roller shaft 11 are arranged at equal intervals in the circumferential direction.

  The bladed roller 10 and the blade receiving roller 20 are arranged in parallel so that the blade receiving surfaces 23, 24, 25, 26, 27, 28 and the cutting edge of the cutting blade 13 are in contact with each other at the roller tangent line G. The blade receiving roller 20 and the roller with blade 10 rotate in opposite directions, so that the package connecting band PC is placed between the blade receiving surfaces 23, 24, 25, 26, 27, 28 and the cutting edge of the cutting blade 13. The connecting portion PA can be cut into the connecting portion PA while being sequentially pulled.

  Here, the blade receiving surfaces 23, 24, 25, 26, 27, and 28 are configured on the end surfaces of the tips of the six protrusions 22 that extend radially from the roller shaft 21 of the blade receiving roller 20.

  Further, the cutting blade 13 is attached to five attachment portions 12 extending radially from the roller shaft 11 of the bladed roller 10 by fasteners 18 each consisting of a bolt and a nut.

  Further, the blade receiving roller 20 and the bladed roller 10 are mounted around the lower end of the roller shaft 11 of the blade receiving roller 29 and the roller shaft 11 of the bladed roller 10 mounted around the lower end of the roller shaft 21 of the blade receiving roller 20. The blade-side gear 14 thus engaged meshes with each other and rotates in opposite directions. The gear ratio between the blade receiving side gear 29 and the blade side gear 14 is such that the cutting edge of the cutting blade 13 and the blade receiving surfaces 23, 24, 25, 26, 27, 28 sequentially contact at the roller tangent line G. It is configured. Therefore, the gear diameters of the blade receiving side gear 29 and the blade side gear 14 and the gear ratio between them are determined as follows. First, the number of cutting blades 13, the number of blade receiving surfaces 23, 24, 25, 26, 27, and 28, and the distance between the connection portions PA of the packaging body connection band PC are determined. The distance between the connecting portions PA of the packaging body connection band PC, the distance between the cutting edges of the cutting blade 13 and the distance between the cutting edges of the cutting edge 13 and the distance between the cutting edges of the roller shaft 11 are substantially equal. The distance from the shaft center to the cutting edge of the cutting blade 13 and the distance from the shaft center of the roller shaft 21 to the blade receiving surfaces 23, 24, 25, 26, 27, 28 are determined. Thereby, the inter-axis distance between the roller shafts 21 and 11 is determined. Further, the gear diameters and gear ratios of the blade receiving side gear 29 and the blade side gear 14 so that the speed of the cutting edge of the cutting blade 13 and the speed of the blade receiving surfaces 23, 24, 25, 26, 27, 28 are substantially equal. Are determined respectively.

  A driving gear 50 is engaged with the blade side gear 14, and the driving gear 50 rotates the blade side gear 14 and the blade receiving side gear 29 by a rotation of the driving shaft 51 in a predetermined rotation direction, that is, a manufacturing unit. It is comprised so that the package connection belt | band | zone PC sent out from may be rotated in the pulling-in direction.

  The drive shaft 51 is connected to a drive mechanism (not shown) or a drive mechanism such as a transmission gear (not shown). Further, the drive shaft 51 is driven so as to synchronize with the delivery speed of the package connecting band PC delivered from the manufacturing unit.

  By arranging the blade receiving roller 20 and the bladed roller 10 as described above, while drawing the packaging body connection band PC between the blade receiving surfaces 23, 24, 25, 26, 27, 28 and the cutting edge of the cutting blade 13, It becomes possible to cut the connecting portion PA with certainty.

  Here, the blade receiving surfaces 23, 24, 25, 26, 27 and 28 are each divided into a plane or multi-groove surface region extending in a strip shape in the extending direction of the roller shaft 21. Here, the “multi-groove surface” refers to a surface in which a plurality of grooves are formed on a plane so as to extend in a direction intersecting with the extending direction of the roller shaft 21 and in parallel with each other. In the multi-groove surface, grooves having a width of 1 to 2 mm and a depth of 1 to 2 mm are formed by cutting.

  FIG. 6 is a plan view showing the configuration of the blade receiving surface of the rotary cutter unit of FIG.

  As shown in FIG. 6, in this embodiment, the blade receiving surfaces 23, 24, 25, 26, 27, and 28 are partitioned into three belt-like regions, and the first phase region A on the rear side in the rotational direction, It is divided into a third phase region C on the front side in the rotation direction and a second phase region B between the first phase region A and the third phase region C.

  The blade receiving roller 20 and the bladed roller 10 are configured such that the relative rotational phase between them can be adjusted.

  The blade receiving surfaces 23, 24, with which the blade tip 13 comes into contact with the structure for adjusting the rotational phase between the blade receiving roller 20 and the bladed roller 10 and the configuration of the blade receiving surfaces 23, 24, 25, 26, 27, 28. The contact area of 25, 26, 27, 28 can be switched to either a flat surface or a multi-groove surface.

  Here, in this embodiment, by adjusting the mounting phase of the blade receiving side gear 29 around the roller shaft 21 of the blade receiving roller 20 in the mounting structure of the blade receiving roller 20 and the blade receiving side gear 29, the blade receiving roller 20 and The rotational phase with the bladed roller 10 is adjustable. Hereinafter, a mounting structure of the roller shaft 11 of the bladed roller 10 and the blade side gear 14 and a mounting structure of the roller shaft 21 of the blade receiving roller 20 and the blade receiving side gear 29 will be described.

  7 is a side view (a) and a bottom view (b) showing a mounting structure of the blade side gear and the blade receiving side gear of the rotary cutter unit of FIG. For convenience of explanation, a part is shown in a sectional view.

  As shown in FIG. 7, a blade-side gear 14 of a spur gear is mounted around one end of the roller shaft 11 of the roller with blade 10. The roller shaft 11 and the blade side gear 14 are appropriately joined with a suitable structure. Here, the blade side gear 14 is fitted into the roller shaft 11, the annular coupling member 15 is fitted into the roller shaft 11 so as to be stacked on the blade side gear 14, and the roller shaft 11 and the coupling member 15 are fixed bolts. The blade side gear 14 and the connecting member 15 are joined by a connecting bolt 17 that extends in the stacking direction. Alternatively, instead of the connecting member 15, a key may be provided on the peripheral surface of the roller shaft 11, and the key and a key groove formed on the inner peripheral side of the blade side gear 14 may be engaged and joined.

  Here, the roller shaft 21 and the blade receiving side gear 29 are configured such that the blade receiving side gear 29 is fitted into the roller shaft 21 and the annular connecting member 30 is attached to the roller shaft 21 so as to be stacked on the blade receiving side gear 29. The roller shaft 21 and the connecting member 30 are joined by a fixing bolt 31. That is, the connecting member 30 is fixed to the roller shaft 21. The blade receiving side gear 29 and the connecting member 30 are fastened and joined by a connecting bolt 32. That is, a bolt hole 36 into which the connecting bolt 32 is screwed is formed on the stacking surface of the blade receiving side gear 29 on which the connecting member 30 is stacked.

  By the way, the connecting member 30 is a flat plate, and a groove-like hole 33 is formed in the connecting member 30 so as to penetrate the bolt hole 36 in the thickness direction. The groove-shaped hole 33 is formed by extending in an arc shape centering on the axis center of the roll shaft 21 in plan view. That is, the mounting phase of the blade receiving side gear 29 around the roller shaft 21 of the blade receiving roller 20 is configured to be adjustable by the tightening position of the connecting bolt 32 in the extending range of the grooved hole 33.

  In addition, one roller shaft side mark 35 is formed on the outer peripheral edge of the connecting member 30 by a method such as stamping, and the blade receiving side gear 29 near the outer peripheral edge of the connecting member 30 has a method such as stamping. Thus, three gear side marks 34 are formed. The gear side mark 34 is a roller shaft side mark 35 in the second rotational phase in which the cutting edge of the cutting blade 13 of the bladed roller 10 contacts the blade receiving surfaces 23, 24, 25, 26, 27, 28 in the second phase region B. A gear-side mark 34 of the second mounting phase 'Y' is formed at a position that coincides with the blade receiving surface 23, 24, 25, 26 in the first phase region A. , 27, 28, a gear side mark 34 of the first mounting phase “X” is formed at a position coinciding with the roller shaft side mark 35 in the first rotational phase, and the bladed roller 10 is formed in the third phase region C. In the third rotational phase where the cutting edge of the cutting blade 13 contacts the blade receiving surfaces 23, 24, 25, 26, 27, 28, the gear side indicator of the third mounting phase “Z” is located at a position coinciding with the roller shaft side indicator 35. 34 is formedIn other words, in the rotational direction of the blade receiving side gear 34, a mark of the first mounting phase X is formed at a position where the rotational phase of the roller shaft 21 is shifted to the front side with the second mounting phase Y as the center. A third mounting phase Z mark is formed at a position where the phase is shifted rearward.

  Here, FIG. 8 is a figure which shows the cutting | disconnection form of the package in the 1st thru | or 3rd rotation phase.

  As shown in FIG. 6, the first phase regions (contact regions) A of the blade receiving surfaces 23, 24, 25, 26, 27, and 28 are all flat surfaces. That is, when the roller shaft 21 of the blade receiving roller 20 and the blade receiving side gear 29 are mounted at the first mounting phase X, all the connecting portions PA of the packaging body connecting band PC are at the blade tangent line G at the blade tangent line G. Since it is pushed between the first phase region A of the receiving surfaces 23, 24, 25, 26, 27 and 28 and the cutting edge of the cutting blade 13 of the bladed roller 10, as shown in FIG. The package P is separated individually.

  Further, the second phase region (contact region) B of the blade receiving surfaces 23, 24, 25, 26, 27, and 28 is configured such that the second phase region B of the adjacent blade receiving surface is a flat surface and a multi-groove surface. Has been.

  Here, when the connection part PA of the package P is pressed against the blade edge on the multi-groove surface, a part of the connection part PA escapes to the groove and avoids cutting. It remains uncut. That is, a perforation is formed in the connection part PA.

  Therefore, when the roller shaft 21 of the blade receiving roller 20 and the blade receiving side gear 29 are mounted at the second mounting phase Y, the blade receiving surfaces 23, 24, 25, 26, 27 that sequentially arrive at the roller tangent line G are obtained. 28, the second phase region B has alternating planes and multi-groove surfaces, and therefore, as shown in FIG. 8, a double package in which a perforation 101 is formed in the connecting portion PA by the rotary cutter unit 7. P is cut off.

  Further, the third phase region (contact region) C of the blade receiving surfaces 23, 24, 25, 26, 27, and 28 is composed of two multi-grooves in one plane in the third phase region C in three consecutive blade receiving surfaces. The surface is configured to be continuous. Specifically, since the third phase region C of the first blade receiving surface 23 is a flat surface, the third phase region C of the second and third blade receiving surfaces 24 and 25 is a multi-groove surface. Subsequently, the third phase region C of the fourth blade receiving surface 26 becomes a flat surface, the third phase region C of the fifth and sixth blade receiving surfaces 27 and 28 becomes a multi-groove surface, and further, the first blade receiving surface 23. And continues to circulate in the plane of the third phase region C.

  Therefore, when the roller shaft 21 of the blade receiving roller 20 and the blade receiving side gear 29 are mounted in the third mounting phase Z, the blade receiving surfaces 23, 24, 25, 26, 27 that sequentially arrive at the roller tangent line G are obtained. 28, the pattern of the third phase region C is a pattern in which two multi-groove surfaces are continuous on a plane. Therefore, as shown in FIG. 8, a perforation 101 is formed in the connecting portion PA by the rotary cutter unit 7. The triple package P is cut off.

  Next, an operation example of the filling and packaging apparatus 200 configured as described above will be described with reference to FIGS. 1 to 4.

  First, the belt-like film F wound up in a roll is sandwiched between the inner peripheral seal bar 1A and the outer peripheral seal bar 1B, pulled by the rotating operation of the rotary drum 8, and pulled out.

  Then, the drawn film F passes over the drum of the rotary drum 8. Specifically, as shown in FIG. 2, the film F is folded so that both side edges of the film F overlap, and the rotary drum 8 is formed so that the side edges of the film F are below the fold. Wound around the circumference. When the side edges of the film F are overlapped, the lower end of the filling chute 2 enters between the films F. Although not described in detail, the filling chute 2 slides upward after the seal completion point SE in the rotation direction, reaches the seal start point SS while sliding again downward above the film F, Return to the rotating orbit. Thus, the lower end of the filling chute 2 can easily enter between the films F.

  Then, the film F is heat-welded by sandwiching the inner peripheral seal bar 1A and the outer peripheral seal bar 1B on the circumferential surface of the rotary drum 8 in the rotation section from the seal start point SS to the seal completion point SE. A package connection band PC is formed in which a connection part PA thermally welded between P is formed. That is, as shown in FIG. 3, the package P is filled with the contents, and the package of the contents is completed when the filling port FA at the upper end of the folded film F is sealed.

  And in the rotation section to the filling start point FS and the filling completion point FE, the contents are filled into the package P from the filling chute FA from the filling chute.

  The package connecting band PC filled with the contents is guided by the guide roller 4, leaves the rotating drum 8, and passes through the heat welding device 5. In the heat welding device 5, the filling port portion FA of the film F is preheated by the preheating bar 5A, and the preheated filling port portion FA is thermally welded by the die roller 5B to form the side edge portion PF, and the side edge. An uneven surface is formed in the portion PF. Thereby, the packaging body P sealed by the connection part PA and the side edge part PC is completed, and the packaging body connection band PC is configured.

  Finally, the packaging body connection band PC is guided to the rotary cutter unit 7. The rotary cutter unit 7 is rotationally driven so as to synchronize with the delivery speed of the packaging body connection band PC delivered from the manufacturing unit, and a perforation 101 is formed in the connection part PA as shown in FIG. The continuous package P is continuously separated.

  And when switching the cutting | disconnection form of the package P, the filling packaging apparatus 200 is stopped, the connection bolt 32 of the blade receiving side gear 29 is loosened, and the first to third mounting phases X, Y, Z to be selected are selected. The gear-side marker 34 and the roller shaft-side marker 35 are encoded so that the connecting bolt 32 is tightened. Then, the filling and packaging apparatus 200 is restarted.

  As described above, the rotary cutter unit 7 according to the present embodiment does not require the work of replacing the cutting blade 13 when switching the separation form of the package P, and between the blade receiving roller 20 and the bladed roller 10. Since it is performed by adjusting the relative rotational phase, the perforation cutting process and the separation process can be switched in a shorter time than in the prior art.

  Further, the rotary cutter unit 7 of the present embodiment can be more easily disposed between the blade receiving roller 20 and the bladed roller 10 by adjusting the mounting phase of the blade receiving side gear 29 around the roller shaft 21 of the blade receiving roller 20. The relative rotational phase can be adjusted.

  Further, the rotary cutter unit 7 of the present embodiment is configured so that the mounting phase of the blade receiving side gear 29 around the roller shaft 21 can be selected by the sign of the roller side mark 35 and the gear side mark 34. The relative rotation phase between the blade receiving roller 20 and the bladed roller 10 can be easily adjusted.

  Further, the rotary cutter unit 7 of the present embodiment can switch between the cutting process of the single package P, the cutting process of the double package P, and the cutting process of the triple package P. Therefore, it is possible to cope with a larger number of detachment forms of the package P.

  Furthermore, in the rotary cutter unit 7 of the present embodiment, the number of cutting edges 13 is 5, the number of blade receiving surfaces 23, 24, 25, 26, 27, and 28 is 6, and the difference between the numbers is Is 1. That is, in the bladed roll 10, the blade receiving surfaces 23, 24, 25, 26, 27, and 28 that come into contact with each rotation are shifted one by one, so that the cutting blade 13 has all the blade receiving surfaces 23, 24, 25, 26, 27, and 28 are evenly contacted. Therefore, since wear of all the cutting blades 13 can be made uniform, the replacement frequency of the cutting blades 13 of the rotary cutter unit 7 of the present invention can be further reduced.

(Second Embodiment)
The second embodiment is an embodiment in which the configuration of the blade receiving surface of the blade receiving roller 20 and the number of cutting blades 13 of the roller with blade 10 are modified in the first embodiment. Therefore, the configuration of the blade receiving surface of the blade receiving roller 20 and the number of cutting blades 13 of the roller with blade 10 will be described, and the other configurations are the same as those in the first embodiment, and the description thereof will be omitted.

  FIG. 9 is a perspective view schematically showing a configuration example of the rotary cutter unit according to the second embodiment of the present invention. FIG. 10 is a plan view showing the configuration of the blade receiving surface of the rotary cutter unit of FIG. FIG. 11 is a side view (a) and a bottom view (b) showing the mounting structure of the blade side gear and the blade receiving side gear of the rotary cutter unit of FIG. For convenience of explanation, a part is shown in a sectional view. 9 to 11, the same components as those shown in FIGS. 5 to 7 are denoted by the same reference numerals.

  As shown in FIG. 9, in the bladed roll 10, the cutting edges of four cutting blades 13 extending in the extending direction of the roller shaft 11 are radially formed at equal intervals.

  Further, as shown in FIG. 10, in this embodiment, the blade receiving surfaces 23, 24, 25, 26, 27, and 28 are partitioned into two belt-like regions, and the first phase region on the rear side in the rotational direction. A, is divided into a second phase region B on the front side in the rotational direction.

  Further, as shown in FIG. 11, the gear-side marker 34 is configured so that the cutting edge of the cutting blade 13 of the bladed roller 10 contacts the blade receiving surfaces 23, 24, 25, 26, 27, 28 in the second phase region B. A gear side mark 34 of the second mounting phase 'Y' is formed at a position coinciding with the roller shaft side mark 35 in the two rotation phases, and the cutting edge of the cutting blade 13 of the bladed roller 10 in the first phase region A is a blade. A gear side mark 34 of the first mounting phase 'X' is formed at a position coinciding with the roller shaft side mark 35 in the first rotational phase contacting the receiving surfaces 23, 24, 25, 26, 27, 28. That is, in the rotational direction of the blade receiving side gear 34, a mark of the first mounting phase X is formed at a position where the rotational phase of the roller shaft 21 is shifted forward, and the rotational phase of the roller shaft 21 is shifted to the rear side. A mark of the second mounting phase Y is formed.

  And as shown in FIG. 10, all 1st phase area | regions (contact area | region) A of the blade receiving surfaces 23, 24, 25, 26, 27, and 28 are planes. That is, when the roller shaft 21 of the blade receiving roller 20 and the blade receiving side gear 29 are mounted at the first mounting phase X, all the connecting portions PA of the packaging body connecting band PC are at the blade tangent line G at the blade tangent line G. Since it is pushed between the first phase region A of the receiving surfaces 23, 24, 25, 26, 27, and 28 and the cutting edge of the cutting blade 13 of the bladed roller 10, the package P is separated individually by the rotary cutter unit 7. It is.

  Further, only the second phase region (contact region) B of the blade receiving surfaces 24, 26, 28 is configured as a multi-groove surface. Therefore, since the second phase region (contact region) B of the blade receiving surfaces 23, 24, 25, 26, 27, 28 is a flat surface and a multi-groove surface, the second phase region B of the adjacent blade receiving surface is When the roller shaft 21 of the receiving roller 20 and the blade receiving side gear 29 are mounted in the second mounting phase Y, the double package body in which the perforation 101 is formed in the connecting portion PA by the rotary cutter unit 7. P is cut off.

  As described above, the rotary cutter unit 7 of the present embodiment does not require the replacement operation of the cutting blade 13 for switching between the cutting process of the single package P and the cutting process of the double package P. Can be done in a short time.

  Further, since the mounting phase of the blade receiving side gear 29 around the roller shaft 21 can be selected by the sign of the roller side mark 35 and the gear side mark 34, the blade receiving roller 20 and the roller with blade are more easily selected. A relative rotational phase between 10 and 10 can be adjusted.

  As described above, since the rotary cutter unit and the filling and packaging apparatus of the present invention do not require the replacement operation of the cutting blade 13 when switching the cutting form of the package P, the perforation cutting process for the connection portion PA of the packaging connection band PC In addition, the switching operation of the separation process can be performed in a shorter time than conventional.

  Moreover, the rotary cutter unit and the filling and packaging apparatus of the present invention are not limited to the above embodiment.

  For example, the number of cutting blades of the bladed roller 10 and the number of blade receiving surfaces of the blade receiving roller 20 are not limited to the number in the above embodiment.

  The number of blades of the bladed roller 10 and the number of blade receiving surfaces of the blade receiving roller 20 may be the same. In this case, the rotation ratio of the bladed roller 10 and the blade receiving roller 20 can be made the same.

  In the above embodiment, the blade receiving roller 20 and the bladed roller 10 are adjusted by adjusting the mounting phase of the blade receiving side gear 29 with respect to the blade receiving roller 20 in the mounting structure of the blade receiving roller 20 and the blade receiving side gear 29. The relative rotational phase between the two is adjustable. However, the present invention can also be implemented by adopting a mounting structure in which the mounting phase of the blade side gear 14 with respect to the bladed roller 10 in the mounting structure of the bladed roller 10 and the blade side gear 14 can be adjusted. As a specific structure, the mounting structure of the blade receiving roller 20 and the blade receiving side gear 29 may be applied to the mounting structure of the roller with blade 10 and the blade side gear 14. That is, it is only necessary that the mounting phase of at least one of the mounting phase of the blade receiving side gear 29 and the mounting phase of the blade side gear 14 can be adjusted.

  Furthermore, the drive mechanism of the bladed roller 10 and the blade receiving roller 20 is not limited to a gear mechanism, and other mechanisms that can control the rotational phase can also be applied. For example, instead of the blade receiving side gear 29, the blade side gear 14 and the drive gear 50 of the rotary cutter unit 7 of the present invention, a servo motor is connected to the roller shafts 11 and 21 of each roller, and both servos are controlled by a control device. It can also be implemented by driving the motor synchronously. That is, the present invention can be implemented by the control device controlling the relative rotational phase of the servomotors.

  INDUSTRIAL APPLICABILITY The present invention is useful as a rotary cutter unit capable of performing a perforation cut-off process and a cut-off process switching operation for a connecting portion of a packaging connecting band in a shorter time than before and a filling packaging apparatus using the rotary cutter unit.

It is a top view which shows typically the structural example of the filling packaging apparatus of 1st Embodiment of this invention. FIG. 2 is a view taken in the direction of arrow II in FIG. 3 is a view taken in the direction of arrow III in FIG. 4 is a view taken along arrow IV in FIG. It is a perspective view which shows typically the structural example of the rotary cutter unit of 1st Embodiment of this invention. It is a top view which shows the structure of the blade receiving surface of the rotary cutter unit of FIG. It is the side view (a) and bottom view (b) which show the mounting structure of the blade side gear and blade receiving side gear of the rotary cutter unit of FIG. It is a figure which shows the disconnection form of the package body in the 1st thru | or 3rd rotation phase. It is a perspective view which shows typically the structural example of the rotary cutter unit of 2nd Embodiment of this invention. It is a top view which shows the structure of the blade receiving surface of the rotary cutter unit of FIG. It is the side view (a) and bottom view (b) which show the mounting structure of the blade side gear and blade receiving side gear of the rotary cutter unit of FIG.

Explanation of symbols

1A Inner seal bar 1B Outer seal bar 2 Filling chute 3 Quantity mass 4 Guide roller 5 Heat welding device 5A Preheating bar 5B Die roller 7 Rotating cutter unit 8 Rotating drum 9 Feed roller 10 Blade roller 11 Roller shaft 12 Mounting portion 13 Cutting blade 14 Blade-side gear 15 Connecting member 16 Fixing bolt 17 Connecting bolt 18 Fastener 20 Blade receiving roller 21 Roller shaft 22 Projection portion 23 First blade receiving surface 24 Second blade receiving surface 25 Third blade receiving surface 26 Fourth blade receiving surface 27 Fifth blade receiving surface 28 Sixth blade receiving surface 29 Blade receiving side gear 30 Connecting member 31 Fixing bolt 32 Connecting bolt 33 Groove hole 34 Gear side mark 35 Roller shaft side mark 36 Bolt hole 50 Drive gear 51 Drive shaft 101 Sewing machine Eye 200 Filling and packaging device F Film FA Filling port FE Filling completion point FS Filling start point P Packaging body PA Part PC Package connection band PF Side edge SE Sealing completion point SS Sealing start point A First phase region B Second phase region C Third phase region G Roller tangent line X First mounting phase Y Second mounting phase Z Third mounting phase

Claims (8)

A blade receiving roller in which a plurality of blade receiving surfaces extending in a strip shape along the extending direction of the roller shaft are arranged at equal intervals in the circumferential direction of the roller shaft, and extending along the extending direction of the roller shaft A plurality of blade edges arranged at equal intervals in the circumferential direction of the roller shaft, a roller surface is configured, and a bladed roller arranged in parallel so that the blade receiving surface and the blade edge are in contact with each other, the blade A rotating cutter unit that cuts the connecting portion while sequentially pulling the connecting portion of the package connecting band between the blade receiving surface and the blade edge by rotating the receiving roller and the bladed roller in opposite directions. And
The relative rotational phase between the blade receiving roller and the bladed roller is configured to be adjustable to at least a first rotational phase and a second rotational phase ,
Each of the plurality of blade receiving surfaces is partitioned into a plurality of regions including a first contact region and a second contact region extending in a belt shape in the roller axis direction of the blade receiving roller,
When the relative rotational phase between the blade receiving roller and the roller with blade is adjusted so as to be the first rotational phase, the blade tip makes a first contact with any blade receiving surface. Touch in the area,
When the relative rotational phase between the blade receiving roller and the roller with blade is adjusted so as to be the second rotational phase, the blade edge contacts the second contact surface with any blade receiving surface. Touch in the area,
The first contact area of each of the blade receiving surfaces is all formed in a plane regardless of which blade receiving surface is,
The second contact area of each of the blade receiving surfaces is a rotary cutter unit in which a portion formed on a flat surface by the blade receiving surface and a portion formed on a multi-groove surface are mixed . A blade receiving side gear mounted around the roller shaft of the blade receiving roller; and a blade side gear mounted around the roller shaft of the bladed roller and meshing with the blade receiving gear;
The mounting phase of the blade receiving side gear around the roller axis of the blade receiving roller in the mounting structure of the blade receiving roller and the blade receiving side gear, and the blade in the mounting structure of the roller with blade and the blade side gear The rotary cutter unit according to claim 1, wherein at least one of the mounting phases of the blade side gear around the roller shaft of the attached roller is adjustable. The sign of the mark formed on the roller shaft of the blade receiving roller and the mark formed on the blade receiving side gear, and the mark formed on the roller shaft of the blade attaching roller and the mark formed on the blade side gear Depending on at least one of
In the mounting structure of the blade receiving roller and the blade receiving side gear, in the mounting structure of the blade receiving roller and the blade side gear, the selection of the mounting phase of the blade receiving side gear around the roller axis of the blade receiving roller. The rotary cutter unit according to claim 2, wherein at least one of selection of a mounting phase of the blade side gear around a roller axis of the roller with blade is possible. The rotary cutter unit according to claim 1, wherein the number of the blade receiving surfaces is an even number, and the second contact area of the adjacent blade receiving surfaces is a flat surface and a multi-groove surface . The number of the blade receiving surfaces is a multiple of 3, and the two contact regions are configured such that two multi-groove surfaces are continuous on one plane in the three consecutive blade receiving surfaces. The rotary cutter unit described in 1. The relative rotational phase between the blade receiving roller and the bladed roller is configured to be adjustable to the third rotational phase in addition to the first rotational phase and the second rotational phase,
The plurality of blade receiving surfaces, in addition to the first contact region and the second contact region that extend in a belt shape in the roller axial direction of the blade receiving roller, in addition to a third shape that extends in a belt shape in the roller axial direction of the blade receiving roller. It is divided into a plurality of areas including the contact area,
When the relative rotational phase between the blade receiving roller and the roller with blade is adjusted so as to be the third rotational phase, the blade tip is in contact with any blade receiving surface in the third contact. Touch in the area,
The number of the blade receiving surfaces is a multiple of 6, and the second contact region of the adjacent blade receiving surfaces is configured to be a flat surface and a multi-groove surface, and three consecutive blade receiving members The rotary cutter unit according to claim 1 , wherein the third contact region is configured such that two multi-groove surfaces are continuous with each other on a plane .   The rotary cutter unit according to claim 1, wherein a difference between the number of blade edges of the bladed roller and the number of blade receiving surfaces of the blade receiving roller is one. An overlapping process for forming an overlapping film in which one band-shaped film is folded in the width direction or two band-shaped films are overlapped, and bonded in a band shape over the entire width at a predetermined interval in the longitudinal direction of the overlapping film. A connecting portion processing for forming a connecting portion, a side edge processing for forming a side edge portion joined at the side edge of at least one side edge of the overlap film along the side edge, and the connecting portion And a filling process for filling the inside of the region partitioned by the side edge portion, and the contents filled between the overlapping films are sealed by the connecting portion and the side edge portion. A manufacturing unit in which a package connecting band formed by connecting the package by the connecting portion is manufactured; and
The filling packaging apparatus which has the rotary cutter unit of Claim 1 arrange | positioned in the downstream of the said manufacturing unit.

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