JP6213391B2 - Packaging equipment - Google Patents

Description

  The present invention relates to a packaging device for packaging an article by covering the article placed on a pedestal with a film together with the pedestal.

  A packaging apparatus for packaging an article by covering an article placed on the upper surface of a pedestal such as cardboard with a film together with the pedestal has been proposed. For example, the packaging device disclosed in Patent Document 1 includes a conveyance roller, an urging roller, a mounting table, a film, and a cradle. The conveying roller and the urging roller are arranged to face each other in the vertical direction, and can convey the pedestal placed on the placing table. The mounting table, the film, and the cradle are sequentially arranged from the upstream side in the transport direction of the pedestal. The pedestal placed on the placing table with the article placed on the upper surface is sandwiched between the conveying roller and the urging roller. The pedestal is conveyed from the mounting table to the receiving table by the rotation of the conveying roller and the urging roller. By the time it is transported to the cradle, the pedestal is covered with the article from the upper side to the lower side with a film and packaged. The packaged pedestal can be removed from the cradle.

  A packaging device provided with a conveyance belt instead of the conveyance roller and the urging roller is conceivable so that the articles to be charged can be packaged efficiently and sequentially. A plurality of detachable portions to which a pedestal can be attached are arranged on the outer surface of the conveyor belt along the belt rotation direction. The pedestal attached to any of the plurality of detachable parts is conveyed and packaged from the mounting table to the receiving table by the rotation of the conveying belt. When the pedestal is transported to the cradle, the subsequent pedestal mounted on the mounting table can be attached to another detachable portion, so that the packaging apparatus can sequentially pack the articles to be input.

JP 2013-233932 A

  However, there is a possibility that the packaging apparatus transports a subsequent pedestal mounted on the mounting table before the article packaged together with the pedestal is taken out of the receiving table. In this case, there is a possibility that a problem such as an article falling on the cradle dropping from the packaging device may occur.

  An object of the present invention is to provide a packaging device that can efficiently and continuously package articles that are sequentially inserted and that can reliably start the packaging operation of subsequent articles after the packaged articles are removed. It is.

  A packaging apparatus according to an aspect of the present invention is a packaging apparatus including packaging means capable of packaging an article placed on a pedestal with a film together with the pedestal, and a placing table capable of placing the pedestal before packaging. And a first detection means capable of detecting the pedestal before packaging placed on the mounting table, a plurality of attaching / detaching parts to which the pedestal can be attached, and a rotation in a predetermined direction, along the rotation direction. A plurality of detachable portions arranged on the mounting table and capable of conveying the pedestal attached to any of the plurality of detachable portions; and By rotating in the predetermined direction, each of the plurality of attachment / detachment portions is a position where the pedestal is wrapped by the wrapping means from a start position where the conveyance of the pedestal before packaging is started sequentially. Package via the packaging position Drive means for moving to the end position, which is a position where the subsequent conveyance of the pedestal ends, and second detection means capable of detecting the post-packaging pedestal attached to the detachable part moved to the end position; Control means for controlling the rotation of the conveyor belt by the drive means, and the plurality of attaching / detaching portions are spaced by a predetermined length that is a length in the rotation direction from the start position to the end position. And when the pedestal after packaging is not detected by the second detection means and the pedestal before packaging is detected by the first detection means, the drive means The start of the rotation of the conveyor belt is allowed.

  In the packaging apparatus according to the present embodiment, the pedestal before packaging on which the article is placed is attached to the detachable portion at the start position and placed on the placing table. The drive means controlled by the control means rotates the conveyor belt in a predetermined direction. The rotating conveyor belt moves the attaching / detaching portion to which the pedestal is attached from the start position to the end position via the packaging position. Thereby, the article placed on the pedestal is packaged with the pedestal by the film. Here, when the attachment / detachment unit located at the start position moves to the end position, another attachment / detachment unit moves to the start position. The packaging device is in a state in which the subsequent pedestal can be mounted on the mounting table without returning the detachable portion that has moved to the end position to the starting position. Therefore, the packaging apparatus can efficiently and continuously package articles that are sequentially inserted. Furthermore, the control means allows the rotation of the conveyor belt when the packaged pedestal at the end position is taken out and the subsequent pedestal is placed on the placing table. Therefore, the packaging apparatus can reliably start the packaging operation of the subsequent article after the packaged article is taken out. As described above, the packaging device can efficiently and continuously package articles that are sequentially inserted, and can reliably start the packaging operation of subsequent articles after the packaged articles are taken out.

It is a perspective view of packaging device 1 (state where case 800 was equipped). It is a perspective view of packaging device 1 (state which removed case 800). 3 is a perspective view of a transport mechanism 50. FIG. It is a perspective view of the attaching / detaching part 61. FIG. 3 is a perspective view of a movable roller 30. FIG. It is a right view of the packaging apparatus 1 by which the support part 34 was arrange | positioned at the highest position. It is a right view of the packaging apparatus 1 by which the support part 34 was arrange | positioned at the lowest position. 4 is a perspective view of a pedestal guide roller 71, a holding roller 72, and a heating unit 86. FIG. It is a perspective view of the periphery of the support part 34 arrange | positioned at the lowest. 2 is a block diagram showing an electrical configuration of the packaging device 1. FIG. It is a flowchart of a main process. It is a state transition diagram of packaging device 1 at the time of the main processing start. FIG. 13 is a state transition diagram of the packaging device 1 in the main process, following FIG. 12. FIG. 14 is a state transition diagram of the packaging device 1 in the main process, following FIG. 13. It is a state transition diagram of the packaging apparatus 1 in the main process following FIG. FIG. 16 is a state transition diagram of the packaging device 1 in the main process, following FIG. 15. FIG. 17 is a state transition diagram of the packaging device 1 in the main process, following FIG. 16. FIG. 18 is a state transition diagram of the packaging device 1 in the main process, following FIG. 17. FIG. 19 is a state transition diagram of the packaging device 1 in the main process, following FIG. 18. FIG. 20 is a state transition diagram of the packaging device 1 in the main process, following FIG. 19. 3 is a right side view of the packaging device 11. FIG.

  Embodiments of the present invention will be described below with reference to the drawings. The packaging device 1 wraps the article 3 by covering the article 3 placed on the base 2 such as a mount with a film 24 and fixing the article 3 to the base 2. Hereinafter, packaging the article 3 in this way is referred to as packaging the base 2 and the article 3. The packaging device 1 conveys the pedestal 2 on which the article 3 is placed from the lower right side of FIG. 1 toward the upper left side, and wraps the pedestal 2 and the article 3. The upper side, the lower side, the left diagonal lower side, and the right diagonal upper side in FIG. 1 are referred to as the upper side, the lower side, the right side, and the left side of the packaging device 1, respectively. The diagonally lower right side and the diagonally upper left side in FIG. 1 are referred to as an upstream side and a downstream side in the transport direction, respectively.

<Case 800>
As shown in FIG. 1, the packaging device 1 includes a housing 800. The shape of the housing 800 is a substantially rectangular parallelepiped whose longitudinal direction is the vertical direction. The housing 800 includes an upper housing 801 and a lower housing 803. The upper housing 801 includes two standing portions 802A and a erection portion 802B. Each of the two standing portions 802A extends upward from both left and right end portions of the lower housing 803. The erection part 802B is erected between the upper ends of the two erection parts 802A. A display unit 207 capable of displaying various types of information is provided on the right standing unit 802A.

  The two standing portions 802A respectively cover side plate portions 111 and 112 (see FIG. 2) described later from the right side and the left side. The erection part 802B covers a film roll 22 (see FIG. 2) described later from above. A portion surrounded by the lower housing 803, the two standing portions 802A, and the erection portion 802B forms an internal space of the housing 800. The internal space of the housing 800 communicates with the outside of the housing 800 through openings 805 formed on the upstream side and the downstream side of the housing 800. The shape of the lower housing 803 is a substantially rectangular parallelepiped with the left-right direction as the longitudinal direction. The lower housing 803 is provided with an operation unit 206 for the user to instruct the packaging device 1 to start a main process described later.

<Receivers 12, 13>
The cradle 12 extends in the horizontal direction from the upper end of the upstream side surface of the lower housing 803 toward the upstream side. The cradle 13 extends in the horizontal direction from the upper end of the downstream side surface of the lower housing 803 toward the downstream side. The shapes of the cradles 12 and 13 are box-like shapes that are substantially rectangular in plan view with the conveying direction as the longitudinal direction. The cradle 12 receives the pedestal 2 conveyed toward the opening 805 on the upper surface. The cradle 13 receives the pedestal 2 and the article 3 whose packaging has been completed on the upper surface. The leg portions 121 and 131 support the cradle 12 and 13 from below.

  The upper surface of the cradle 12 is referred to as a receiving surface 12A, and the upper surface of the cradle 13 is referred to as a receiving surface 13A. The receiving surfaces 12A and 13A are horizontal and form substantially the same plane. Therefore, the receiving surfaces 12A and 13A are flat surfaces that can smoothly convey the base 2. A portion where the pedestal 2 is transported on the receiving surfaces 12A and 13A is referred to as a transport path 103 (see FIG. 6 and the like).

  As shown in FIG. 2, the packaging device 1 includes a bottom portion 10 and side plate portions 111 and 112. The shape of the bottom 10 is a rectangular shape in plan view. The side plate portion 111 extends in the upward vertical direction from the right end portion of the bottom portion 10. The side plate portion 112 extends in the upward vertical direction from the left end portion of the bottom portion 10. Each shape of the side plate portions 111 and 112 is a substantially rectangular plate shape whose longitudinal direction is the vertical direction. The inner surfaces of the side plate portions 111 and 112 face each other. The cradle 12 is supported by end portions on the upstream side of the side plate portions 111 and 112. The cradle 13 is supported by the downstream ends of the side plate portions 111 and 112.

<Transport mechanism 50>
As shown in FIG. 3, a motor 222 is provided inside the cradle 13. The motor 222 can rotate the pulley 54 forward and backward about the left-right direction. The pulley 54 is provided on the upstream side of the internal space of the cradle 13. A pulley 56 is provided in the internal space of the cradle 13 and downstream of the pulley 54. The pulley 56 is supported by a rotating shaft 58 that extends in the left-right direction on the downstream side of the internal space of the cradle 13. The pulley 56 is arranged on the right side of the approximate center of the rotating shaft 58 in the left-right direction. An endless belt 57 is stretched around the outer peripheral surfaces of the pulleys 54 and 56.

  A pulley 52 </ b> A is supported on the right end portion of the rotation shaft 58. The pulley 52 </ b> A is disposed at the right end portion of the cradle 13. A pulley 52B is provided on the upstream side of the pulley 52A. The pulley 52B is supported by a rotating shaft 59 that extends in the left-right direction on the upstream side of the internal space of the cradle 12. The pulley 52B is disposed at the right end portion of the rotation shaft 59 and is aligned with the pulley 52A along the transport direction. The outer peripheral surfaces of the pulleys 52A and 52B are each formed with tooth portions that continuously extend along the circumferential direction. An endless conveyance belt 511 is stretched around the outer peripheral surfaces of the pulleys 52A and 52B. On the inner surface of the conveyor belt 511, teeth that extend continuously along the extending direction of the conveyor belt 511 are formed. The conveyor belt 511 is rotatably supported in a state where the teeth formed on the inner surface mesh with the teeth of the pulleys 52A and 52B.

  A pulley 53 </ b> A is supported on the left end portion of the rotation shaft 58. The pulley 53 </ b> A is disposed at the left end portion of the cradle 13. A pulley 53B is provided on the upstream side of the pulley 53A. The pulley 53B is supported by the rotation shaft 59. The pulley 53B is disposed at the right end portion of the rotation shaft 59 and is aligned with the pulley 52A along the transport direction. Each of the outer peripheral surfaces of the pulleys 53A and 53B is formed with tooth portions that continuously extend along the circumferential direction. An endless conveyance belt 512 is stretched around the outer peripheral surfaces of the pulleys 53A and 53B. On the inner surface of the conveyor belt 512, teeth that extend continuously along the extending direction of the conveyor belt 512 are formed. The conveyor belt 512 is rotatably supported in a state where the teeth formed on the inner surface mesh with the teeth of the pulleys 53A and 53B.

  The driving force of the motor 222 is transmitted through the pulley 54, the belt 57, the pulley 56, and the rotating shaft 58 in order to rotate the pulleys 52A and 53A. As the pulleys 52A and 53A rotate, the conveyor belts 511 and 512 travel while rotating the pulleys 52B and 53B. That is, the pulleys 52A and 53A are driving pulleys that rotate the conveyor belts 511 and 512 as the motor 222 is driven, while the pulleys 52B and 53B are driven pulleys that rotate in conjunction with the rotation of the conveyor belts 511 and 512. .

  Portions of the outer surfaces of the conveyor belts 511 and 512 facing upward are exposed to the outside from the receiving surfaces 12A and 13A and extend in the conveying direction. On the outer side surfaces of the conveyor belts 511 and 512, the detachable parts 61 to 63 are fixed in order from the counterclockwise side to the clockwise side as viewed from the right side. The attaching / detaching parts 61 to 63 are arranged at predetermined uniform intervals (hereinafter referred to as “predetermined intervals”) along the rotation direction of the conveying belts 511 and 512, and the outer surfaces of the conveying belts 511 and 512 are evenly spaced. Divide into three. The detachable portions 61 to 63 can each be attached to the pedestal 2 and can convey the pedestal 2 downstream as the conveying belts 511 and 512 rotate.

  As the conveyor belts 511 and 512 rotate counterclockwise as viewed from the right side, the attaching / detaching parts 61 to 63 can move in the order of the start position, the end position, and the retracted position, respectively. The start position is a position at which conveyance of the pedestal 2 placed on the cradle 12 is started. The end position is a position at which the conveyance of the base 2 that has moved from the cradle 12 to the cradle 13 is finished. The retreat position is a position spaced from the start position clockwise in the right side view along the rotation direction of the conveyor belts 511 and 512.

  The start position, the end position, and the retreat position are separated from each other by a predetermined interval along the rotation direction of the conveyor belts 511 and 512. That is, when any one of the attachment / detachment portions 61 to 63 is in the start position, the other two attachment / detachment portions are located at the end position and the retracted position, respectively. For example, when the detachable part 61 is located at the start position, the detachable part 62 is located at the retracted position, and the detachable part 63 is located at the end position (see FIGS. 3 and 12). When the detachable portion 62 is located at the start position, the detachable portion 63 is located at the retracted position, and the detachable portion 61 is located at the end position (see FIG. 20). When the detachable part 63 is located at the start position, the detachable part 61 is located at the retracted position, and the detachable part 62 is located at the end position (not shown).

  The detachable part 61 includes a right detachable part 61A and a left detachable part 61B. The right attachment / detachment portion 61 </ b> A is provided on the conveyance belt 511, and the left attachment / detachment portion 61 </ b> B is provided on the conveyance belt 512. The right attachment / detachment portion 61A and the left attachment / detachment portion 61B have the same shape and face each other in the left-right direction.

  As shown in FIG. 4, the right attachment / detachment portion 61 </ b> A and the left attachment / detachment portion 61 </ b> B each include a pair of support portions 94, a penetration portion 96, and an extension portion 98. The pair of support portions 94 are arranged side by side along the rotation direction of the conveyor belt 512 and are fixed to the outer surface of the conveyor belt 512. Each of the pair of support portions 94 is a plate-like body that is long in the rotation direction of the transport belt 512, and is formed so that the thickness decreases in a direction away from each other. The penetrating portion 96 is a columnar body that extends to the outside of the conveyor belt 512 from the end portions of the pair of support portions 94 that are close to each other. In other words, the pair of support portions 94 extends from the penetration portion 96 clockwise and counterclockwise in a side view along the rotation direction of the transport belt 512. The penetrating portion 96 protrudes upward from the receiving surface 12A in a side view when in the start position, and protrudes upward from the receiving surface 13A (see FIG. 2) in a side view when in the end position.

  The extending portion 98 is a plate-like body that extends along the rotational direction of the transport belt 512 and is connected to the penetrating portion 96 from the side opposite to the pair of support portions 94. A central portion of the extending portion 98 in the rotation direction of the transport belt 512 is connected to the through portion 96. In other words, the extending portion 98 extends from the penetrating portion 96 in the clockwise direction and the counterclockwise direction as viewed from the side along the rotation direction of the conveyor belt 512. Each extension amount of the extending portion 98 in the clockwise direction and the counterclockwise direction from the penetrating portion 96 is smaller than the extending amount from each penetrating portion 96 of the pair of support portions 94. . Hereinafter, the extension amount that the extension portion 98 extends clockwise and counterclockwise as viewed from the side from the penetration portion 96 is referred to as “extension amount of the extension portion 98”.

  The configuration of the detachable portions 62 and 63 is the same as the configuration of the detachable portion 61. That is, the detachable part 62 includes a right detachable part 62A and a left detachable part 62B, and the detachable part 63 includes a right detachable part 63A and a left detachable part 63B. The right attachment / detachment portions 62A and 63A are provided on the conveyance belt 511, and the left attachment / detachment portions 62B and 63B are provided on the conveyance belt 512. The right attachment / detachment portion 62A and the left attachment / detachment portion 62B, and the right attachment / detachment portion 63A and the left attachment / detachment portion 63B face each other in the left-right direction.

  The right attachment / detachment portions 62A and 63A and the left attachment / detachment portions 62B and 63B each have the same shape as the right attachment / detachment portion 61A. That is, the right detachable portions 62A and 63A and the left detachable portions 62B and 63B each include a pair of support portions 94, a penetrating portion 96, and an extending portion 98.

  As shown in FIG. 3, the operating members 91 to 93 are fixed to the outer surface of the conveyor belt 512. The operation members 91 to 93 are separate from the attaching / detaching parts 61 to 63 and are formed in a substantially rectangular parallelepiped shape. The operation members 91 to 93 are arranged at predetermined intervals in order from the counterclockwise direction to the clockwise direction when viewed from the right side along the rotation direction of the transport belt 512. In the rotation direction of the conveyor belt 512, the operation member 91 is disposed on the right-hand side counterclockwise side of the attaching / detaching portion 63. Similarly, the actuating member 92 is disposed on the detachable portion 61 and the actuating member 93 is disposed on the detachable portion 62 on the counterclockwise side as viewed from the right side.

  Since the operating members 91 to 93 are arranged at a predetermined interval similarly to the attaching / detaching parts 61 to 63, when the attaching / detaching parts 61 to 63 sequentially reach the start position, the operating members 91 to 93 are specified in order. To reach the position. Hereinafter, this specific position is referred to as a “detected position”. In the present embodiment, the detected position is a position between the lower end portion of the pulley 53A and the lower end portion of the pulley 53B, and a position in the vicinity of the pulley 53A. When the detected position is in the vicinity of the pulley 53A, the portion of the conveyor belt 512 between the lower end of the pulley 53A and the lower end of the pulley 53B can swing up and down using the pulleys 53A and 53B as fulcrums. However, the swinging amount of the actuating members 91 to 93 at the detected position is small.

  The motor 222, the pulleys 54, 56, 52A, 52B, 53A, 53B, the belt 57, the rotation shafts 58 and 59, the conveyor belts 511 and 512, the attaching / detaching parts 61 to 63, and the operating members 91 to 93 described above are generically named. This is referred to as a transport mechanism 50.

<Pedestal mounting sensor 41, pedestal discharge sensor 42, operation detection sensor 43>
As shown in FIG.2 and FIG.3, the packaging apparatus 1 is provided with the base mounting sensor 41, the base discharge sensor 42, and the operation | movement detection sensor 43 (refer FIG. 12). The pedestal mounting sensor 41 is a contact-type sensor provided in a downstream portion of the cradle 12 and can detect an object (for example, the pedestal 2) placed on the receiving surface 12A. The pedestal discharge sensor 42 is a contact-type sensor provided in a downstream portion of the cradle 13 and can detect an object placed on the receiving surface 13A. The operation detection sensor 43 (see FIG. 12) is a non-contact sensor (reflective sensor) provided in the internal space of the cradle 13 and below the conveyor belt 512. The operation detection sensor 43 can detect the operation members 91 to 93 at the detected positions.

<Film roll 22>
As shown in FIG. 2, the film roll 22 around which the film 24 is wound is rotatably supported between the upper end portions of the side plate portions 111 and 112. The motor 227 (see FIG. 10) rotates the film roll 22 via the transmission mechanism 65. The film 24 (see FIG. 1) fed out from the rotating film roll 22 is discharged downward in the internal space of the housing 800. When the pedestal 2 on which the article 3 is placed is conveyed from the upstream side toward the downstream side in the internal space of the housing 800, the pedestal 2 is packaged by the film 24.

<Movable roller 30>
A carriage 349 that is driven by the rotation of the motor 221 is provided on the right side surface of the side plate portion 111. The carriage 349 is connected to a support portion 341 (see FIG. 5). A carriage 350 is provided on the left side surface of the side plate portion 111. The carriage 350 is connected to a support portion 342 (see FIG. 5).

  As shown in FIG. 5, the support portions 341 and 342 are collectively referred to as the support portion 34. The guide roller 31, the first auxiliary roller 32, and the second auxiliary roller 33 are collectively referred to as a movable roller 30. The movable roller 30 is a cylindrical body extending in the left-right direction. The length in the left-right direction of the movable roller 30 is substantially the same as the length in the left-right direction of the cradles 12 and 13 (see FIG. 2). The support portion 34 rotatably supports the left and right end portions of the movable roller 30.

  The support part 34 is a plate-like member having a substantially inverted L shape when viewed from the right side. The guide roller 31 is supported at the downstream end portion of the support portion 34. The first auxiliary roller 32 is supported by the support portion 34 slightly upstream from the guide roller 31. The second auxiliary roller 33 is supported by the support portion 34 on the upstream side and the upper side of the first auxiliary roller 32. That is, the guide roller 31, the first auxiliary roller 32, and the second auxiliary roller 33 are arranged in order from the downstream side to the upstream side.

  The motor 221 (see FIG. 2) can move the support portion 34 that supports the movable roller 30 in the vertical direction via carriages 349 and 350 (see FIG. 2). FIG. 6 shows a state in which the support portion 34 is disposed at the uppermost position. In this state, a portion extending in the vertical direction of the support portion 34 is disposed in the vicinity of the upstream side of the film roll 22. A portion extending in the transport direction of the support portion 34 is disposed below the film roll 22. The movable roller 30 is disposed below the film roll 22. In FIG. 6, the casing 800, the bottom portion 10, and the side plate portions 111 and 112 are not shown (the same applies to FIG. 7).

  FIG. 7 shows a state in which the support portion 34 is disposed at the lowest position. In this state, a portion of the support portion 34 that extends in the transport direction is disposed below the transport path 103. A movement path of the guide roller 31 accompanying the movement of the support portion 34 is referred to as a movement path 104. When the guide roller 31 moves to the lowest position along the movement path 104, the guide roller 31 is disposed below the conveyance path 103. A position where the conveyance path 103 and the movement path 104 intersect is referred to as an intersection position 105.

<Cutting part 77>
As shown in FIGS. 6 to 8, a guide rail 74 extending in the left-right direction is provided below the intersection position 105. The guide rail 74 extends to the right side of the conveyance belt 511 and extends to the left side of the conveyance belt 512. The cutting part 77 is connected to the upstream side of the guide rail 74 and is movable along the guide rail 74. The cutting portion 77 includes a blade portion 771 that protrudes upward and extends in the left-right direction. The motor 225 (see FIG. 10) moves the cutting portion 77 in the left-right direction along the guide rail 74.

  As shown in FIG. 7, when the support portion 34 is disposed at the lowest position, the guide roller 31 is disposed above the guide rail 74. A blade portion 771 extending upward from the cutting portion 77 is disposed between the guide roller 31 and the first auxiliary roller 32. When the cutting part 77 is moved in the left-right direction in this state, the blade part 771 can cut the film 24 supplied from the film roll 22 in the width direction.

<Pedestal guide roller 71, holding roller 72, heating unit 86, rotation suppressing unit 80>
As shown in FIGS. 6 to 8, a pedestal guide roller 71 extending in the left-right direction is provided on the upstream side of the portion sandwiched between the side plate portions 111 and 112 (see FIG. 2) and on the lower side of the conveyance path 103. The pedestal guide roller 71 contacts the conveyance path 103 from below. The pedestal guide roller 71 supports the pedestal 2 (see FIG. 1) transported from the upstream side to the downstream side along the transport path 103 from below between the cradles 12 and 13, and from the cradle 12 to the cradle 13. Induce. As shown in FIG. 7, when the support portion 34 is disposed at the lowest position, the second auxiliary roller 33 is disposed near the upper portion of the pedestal guide roller 71.

  A holding roller 72 extending in the left-right direction is provided on the downstream side of the pedestal guide roller 71. The left and right end portions of the holding roller 72 are rotatably supported by the holding portion 78. The holding portion 78 can swing around a shaft extending in the left-right direction provided below the pedestal guide roller 71. The holding part 78 is swung by a motor 226 (see FIG. 10). A state in which the holding roller 72 is close to the downstream side of the pedestal guide roller 71 (see FIG. 12) and a state in which the holding roller 72 is separated downward from the pedestal guide roller 71 by the swinging of the holding portion 78 (see FIGS. 6 and 7). To see). When the holding roller 72 comes close to the downstream side of the pedestal guide roller 71, the holding roller 72 contacts the conveyance path 103 from the lower side (see FIG. 12). At this time, the film 24 supplied from the film roll 22 is sandwiched between the holding roller 72 and the pedestal guide roller 71.

  As shown in FIGS. 8 and 9, a heating unit 86 is provided in the vicinity of the downstream side of the holding roller 72. The heating unit 86 includes three heating units at the upper end. The heating unit includes a heater 871 on the upper surface. The heater 871 can heat the film 24 in contact with the film 24. As the motor 223 (see FIG. 10) rotates, the heating unit 86 moves in the vertical direction. In a state where the heating unit 86 is disposed at the uppermost position (see FIG. 8), the upper surfaces of the three heating units are close to the conveyance path 103 (see FIGS. 6 and 7). The upper surface of each of the three heating units is separated from the conveyance path 103 in a state where the heating unit 86 moves and is disposed at the lowest position (see FIGS. 6 and 7).

  A rotation suppression unit 80 is provided on the downstream side of the heating unit 86. The rotation suppression unit 80 includes a cam 851, two support rods 82, and a stopper 81. The two support bars 82 extend in the transport direction. The stopper 81 is provided at the upstream end of each of the two support rods 82 and extends in the left-right direction. The shape of the stopper 81 is a bar shape having a square cross-sectional shape. Rubber is provided on the upstream surface of the stopper 81. When the motor 224 (see FIG. 10) rotates the cam 851, the two support bars 82 move in the transport direction, and the stopper 81 also moves in the transport direction.

  In FIG. 9, the support portion 34 is disposed at the lowest position, the base guide roller 71 (see FIG. 7) and the holding roller 72 are close to each other, the heating portion 86 is disposed at the uppermost position, and the stopper 81 is disposed on the upstream side. Indicates the state. The stopper 81 is disposed at a position where it can contact the guide roller 31. The rubber of the stopper 81 pushes the guide roller 31 upstream. Thereby, the rotation of the guide roller 31 is restricted. The heating unit 86 protrudes upward through the space between the first auxiliary roller 32 and the holding roller 72.

<Pedestal 2>
The pedestal 2 will be described with reference to FIG. The pedestal 2 is produced by bending a substantially rectangular plate-shaped portion 90 with bent portions 911 and 912. The bent portions 911 and 912 are folds extending in the transport direction and arranged at intervals in the left-right direction. A portion sandwiched between the bent portions 911 and 912 in the plate-like portion 90 is referred to as a plate-like portion 905. The plate-like portion 905 has a plurality of holes 927 formed at equal intervals along the bent portions 911 and 912. In the transport direction, the length of the hole 927 is longer than the penetrating portion 96 (see FIG. 4) and shorter than the extending portion 98 (see FIG. 4). The plurality of holes 927 formed in the bent portion 911 are aligned in the left-right direction with any of the plurality of holes 927 formed in the bent portion 912. In the pedestal 2 of this embodiment, three pairs of holes 927 arranged in the left-right direction are formed along the bent portions 911 and 912.

  Removable parts 61 to 63 (see FIG. 3) can be attached to the pair of holes 927 formed in the plate-like part 905. For example, as shown in FIG. 1, when the user places the pedestal 2 on the cradle 12, the detachable portion 61 (in the start position) is inserted into a pair of holes 927 on the downstream side in the transport direction among the plurality of holes 927. (See FIG. 12). More specifically, with the pedestal 2 tilted, the extending portion 98 and the penetrating portion 96 are inserted from below into each of the pair of holes 927 on the downstream side. The pedestal 2 is penetrated by the penetration part 96, supported from below by the support part 94, and further supported from above by the extension part 98. Thereby, the base 2 is attached to the attaching / detaching portion 61. The detachable part 61 can transport the pedestal 2 downstream in the transport direction.

<Electrical configuration>
The electrical configuration of the packaging device 1 will be described with reference to FIG. The packaging device 1 includes a CPU 201, a flash ROM 202, a RAM 203, a pedestal mounting sensor 41, a pedestal discharge sensor 42, an operation detection sensor 43, an operation unit 206, a display unit 207, and a heater 871. The CPU 201 controls the entire packaging device 1. The CPU 201 executes a program stored in the flash ROM 202 to execute a process of packaging the article 3 placed on the pedestal 2 with the film 24. The flash ROM 202 stores programs and the like for various processes to be described later executed by the CPU 201.

  The packaging device 1 includes drive units 211 to 217, motors 221 to 227, and encoders 231, 232, and 237. The drive units 211 to 217 drive the motors 221 to 227 by outputting pulse signals to the motors 221 to 227, respectively. The encoders 231, 232, and 237 output a number of pulse signals corresponding to the rotation of the motors 221, 222, and 227, respectively. The CPU 201 is electrically connected to the flash ROM 202, RAM 203, pedestal mounting sensor 41, pedestal ejection sensor 42, operation detection sensor 43, operation unit 206, display unit 207, heater 871, driving units 211 to 217, and encoders 231, 232, and 237. Connect. Drive units 211 to 217 are electrically connected to motors 221 to 227, respectively.

<Main processing>
The main process executed by the CPU 201 will be described with reference to FIGS. 12 to 20 are cross-sectional views taken along the line AA in FIG. 2, and the casing 800, the bottom portion 10, and the side plate portions 111 and 112 are not shown.

  The main process is a process executed by the CPU 201 in order for the packaging device 1 to package the base 2 and the article 3. Before the main process is executed, the leading end of the film 24 is pulled out from the film roll 22 and is below the transport path 103 and downstream of the pedestal guide roller 71 (see FIG. 12). Before the main process is executed, the packaging device 1 is in an initial state (see FIG. 12). When the packaging device 1 is in the initial state, the support portion 34 is disposed at the uppermost position, the heating portion 86 is disposed at the lowermost position, the stopper 81 is disposed on the downstream side, the cutting portion 77 is disposed on the left side, and the holding roller 72 is disposed at a position close to the pedestal guide roller 71 from the downstream side. The leading end of the film 24 is sandwiched between the holding roller 72 and the pedestal guide roller 71 from both sides in the transport direction. The film 24 extends straightly in the vertical direction between the upstream side of the second auxiliary roller 33 and the portion sandwiched between the pedestal guide roller 71 and the holding roller 72 (see FIG. 12).

  In addition, it is assumed that the attaching / detaching portion 61 is at the start position. The pedestal 2 placed on the cradle 12 by the user is positioned by being attached to the detachable part 61 at the start position. The article 3 is placed on the plate-like portion 905 of the base 2. When the user inputs an instruction to start the main process to the operation unit 206 (see FIG. 1), the CPU 201 starts the main process by reading and executing a program stored in the flash ROM 202.

  As shown in FIG. 11, the CPU 201 determines whether or not the pedestal mounting sensor 41 is ON (S11). When the pedestal mounting sensor 41 is OFF (S11: NO), the CPU 201 displays an error message on the display unit 207 (S13), and returns the process to S11. When the pedestal 2 is not placed on the cradle 12, the pedestal mounting sensor 41 is turned off. In this case, for example, the CPU 201 displays an error message “Please set the mount” on the display unit 207 (not shown).

  When the pedestal mounting sensor 41 is ON (S11: YES), the CPU 201 advances the process to S15. When the user mounts the pedestal 2 on which the article 3 is placed on the upper surface and mounts the pedestal 2 on the detachable portion 61 and places the pedestal 12 on the cradle 12, the pedestal mounting sensor 41 is turned on.

  The CPU 201 determines whether or not the pedestal discharge sensor 42 is ON (S15). When the base discharge sensor 42 is ON (S15: YES), the CPU 201 displays an error message on the display unit 207 (S17), and returns the process to S11. When a pedestal 2 different from the pedestal 2 placed on the cradle 12 is placed on the cradle 13 (see FIG. 12), the pedestal discharge sensor 42 is turned on. In this case, for example, the CPU 201 displays an error message “please take out the wrapped mount” on the display unit 207 (not shown).

  When the base discharge sensor 42 is OFF (S15: NO), the CPU 201 controls the driving unit 212 and drives the motor 222 to start the rotation of the conveyor belts 511 and 512 (S19). The CPU 201 drives the motor 222 so that the conveyor belts 511 and 512 rotate counterclockwise when viewed from the right side. As the conveyor belts 511 and 512 rotate, the attachment / detachment unit 61 conveys the base 2 toward the downstream side (see FIGS. 12 and 13). Note that when the conveyor belts 511 and 512 start to rotate, the operating member 91 at the detected position rotates counterclockwise when viewed from the right side (see FIGS. 12 and 13).

  CPU201 performs a packaging process (S21). CPU201 controls the drive parts 211-217 and drives the motors 221-227, and performs the packaging process shown in FIGS. When the packaging process is started, the conveyor belts 511 and 512 are continuously rotated, and the pedestal 2 is conveyed toward the downstream side.

  As shown in FIG. 13, the motor 222 rotates the conveyor belts 511 and 512 counterclockwise when viewed from the right side, whereby the pedestal 2 is conveyed downstream (arrow 142). The downstream end of the plate-like portion 905 contacts the film 24 and then passes over the holding roller 72. The pedestal 2 approaches the movement path 104 from the upstream side while pushing the film 24 to the downstream side, and passes above the heating unit 86. Note that the leading end of the film 24 is sandwiched between a pedestal guide roller 71 and a holding roller 72. When the film 24 is pushed downstream by the pedestal 2, the leading end of the film 24 goes around the lower surface of the plate-like portion 905. The film roll 22 rotates in the feeding direction, and the film 24 is fed from the film roll 22. When the film roll 22 rotates, the motor 227 rotates the film roll 22 in the feeding direction.

  When the downstream end of the pedestal 2 moves a predetermined distance downstream from the upper position of the heating unit 86, the motor 222 stops the rotation of the conveyor belts 511 and 512. The pedestal 2 stops. The motor 227 (see FIG. 10) further rotates the film roll 22 in the feeding direction. As a result, the film 24 is forcibly fed out from the film roll 22. As the film roll 22 rotates in the direction of arrow 161, the film 24 relaxes. Thereafter, the motor 227 stops rotating.

  The motor 223 raises the heating unit 86 to the top (arrow 143). The upper surface of the heating unit 86 is close to the conveyance path 103 from below. The downstream end of the pedestal 2 has moved a predetermined distance downstream from the upper position of the heating unit 86, and the film 24 wraps around the lower surface of the plate-like part 905. Therefore, the upper surface of the heating unit 86 moved to the uppermost position is in a state in which the leading end portion of the film 24 is sandwiched between the lower surface of the plate-like portion 905.

  The heater 871 (see FIG. 9) of the heating unit 86 generates heat. When heated by the heater 871, the leading end of the film 24 is melted and bonded to the lower surface of the base 2. The heater 871 stops the heat generation after a lapse of a predetermined time from the start of heat generation. The predetermined time is a time required for heating the temperature of the film 24 to the melting point by the heater 871.

  As shown in FIG. 14, the motor 223 (see FIG. 10) lowers the heating unit 86 to the lowest position (arrow 144). The motor 226 (see FIG. 10) moves the holding roller 72 to a position spaced downward with respect to the pedestal guide roller 71 by swinging the holding portion 78 (arrow 145). The pedestal guide roller 71 and the holding roller 72 release the leading end of the film 24. In addition, the front-end | tip part of the film 24 is the state adhere | attached on the lower surface of the base 2. As shown in FIG.

  The motor 222 (see FIG. 3) restarts the rotation of the conveyor belts 511 and 512 counterclockwise when viewed from the right side, and conveys the pedestal 2 downstream (arrow 146). The leading end of the film 24 is released from the pedestal guide roller 71 and the holding roller 72. The leading end of the film 24 is moved to the downstream side with the movement of the pedestal 2 while being adhered to the lower surface of the pedestal 2. Note that the motor 227 rotates the film roll 22 in the feeding direction as the pedestal 2 moves downstream. The film 24 is further unwound from the film roll 22 (arrow 162). The film 24 is loose.

  The motor 222 continuously rotates the conveyor belts 511 and 512 counterclockwise as viewed from the right side, so that the downstream end of the base 2 is located upstream at the intersection 105 where the conveyance path 103 and the movement path 104 intersect. Cross from the side toward the downstream side. The base 2 is further conveyed downstream (arrow 146). By transporting the pedestal 2 to the downstream side, the downstream end of the plate-like portion 905 of the pedestal 2 and the downstream end of the article 3 are brought into contact with the film 24 and bent.

  The downstream end of the pedestal 2 is transported to the cradle 13. The upstream end of the pedestal 2 is conveyed to the downstream side of the pedestal guide roller 71. The film 24 is disposed at a position covering the plate-like portion 905 and the upper side of the article 3. After the upstream end of the base 2 crosses the intersection position 105 from the upstream side to the downstream side, the motor 222 stops the rotation of the conveyor belts 511 and 512. The pedestal 2 stops. The film 24 extending from the film roll 22 contacts the upstream side of the second auxiliary roller 33 and is slightly guided upstream, contacts the lower side of the second auxiliary roller 33 and extends downstream, and the first auxiliary roller It contacts the lower side of 32 and extends further downstream, reaching the downstream side of the base 2 and the downstream side of the article 3. The guide roller 31 is placed above the film 24 extending between the first auxiliary roller 32 and the base 2 and the article 3.

  As shown in FIG. 15, after the base 2 stops, the motor 221 moves the support portion 34 along the movement path 104 from the highest level to the lowest level. As the support portion 34 moves to the lowest position, the guide roller 31 contacts the film 24 from above, and further guides the film 24 downward along the movement path 104 (arrow 147). The film 24 presses the base 2 and the article 3 from above. While the support portion 34 moves to the lowest position, the motor 227 rotates the film 24 in the feeding direction. The film 24 is fed out from the film roll 22 (arrow 163). Accordingly, the film 24 is loose. Thereafter, the motor 227 stops rotating.

  When the guide roller 31 guides the film 24 downward, the leading end portion of the film 24 is bonded to the lower surface of the plate-like portion 905 on the downstream side of the attaching / detaching portion 61. For this reason, the load which tries to rotate the base 2 clockwise (arrow 301) by the right side view centering on the attachment / detachment part 61 generate | occur | produces. Even in this case, since the pedestal 2 is supported from above and below by the pair of support portions 94 and the extending portions 98, the pedestal 2 does not come off the detachable portion 61. Further, when the pedestal 2 is slightly rotated around the attaching / detaching portion 61, the support portion 94 on the upstream side of the pair of support portions 94 and the lower surface of the plate-like portion 905 come into contact with each other. Since the extension amount of each of the pair of support portions 94 from the through portion 96 is larger than the extension amount of the extension portion 98, the contact area between the support portion 94 and the plate-like portion 905 is increased. Therefore, the stress which the plate-shaped part 905 receives from the support part 94 reduces.

  As shown in FIG. 16, the guide roller 31 that has moved to the lowest position is in contact with the transport path 103 from below. The film 24 covers the downstream side, the upper side, and the upstream side of the plate-like portion 905 and the article 3. The motor 227 rotates the film roll 22 in the winding direction. The winding direction is the direction opposite to the feeding direction. As a result, the film 24 fed out from the film roll 22 is forcibly wound around the film roll 22 (arrow 164).

  The motor 222 (see FIG. 3) rotates the conveyor belts 511 and 512 clockwise as viewed from the right side. The detachable part 61 moves from the downstream side to the upstream side, and conveys the base 2 toward the upstream side (arrow 148). The upstream end of the plate-like portion 905 of the pedestal 2 comes into contact with the film 24 and is pushed upstream. The upstream end of the pedestal 2 crosses the intersection position 105 from the downstream side toward the upstream side, and passes through the upper position of the heating unit 86.

  The guide roller 31 moves relatively to the downstream side with respect to the pedestal 2 while in contact with the lower surface of the plate-like portion 905 from below. The film 24 is sandwiched between the lower surface of the plate-like portion 905 and the guide roller 31. The film 24 goes around to the lower side of the base 2. When the upstream end surface of the pedestal 2 moves a predetermined distance upstream from the upper position of the heating unit 86, the motor 222 (see FIG. 3) stops driving and stops the pedestal 2.

  When the base 2 is transported upstream, the motor 227 rotates the film roll 22 in the winding direction. The film 24 is wound on a film roll 22. Accordingly, the pedestal 2 is conveyed to the upstream side, and tension is applied to the film 24 when the upstream end of the plate-like portion 905 pushes the film 24 to the upstream side. Due to the tension acting on the film 24, the film 24 adheres to the base 2 and the article 3.

  When the pedestal 2 pushes the film 24 to the upstream side, the film 24 is sandwiched between the plate-like portion 905 and the guide roller 31 on the upstream side of the attaching / detaching portion 61. For this reason, the load which tries to rotate the base 2 counterclockwise (arrow 303) by the right side view centering on the attachment / detachment part 61 generate | occur | produces. Even in this case, since the pedestal 2 is supported from above and below by the pair of support portions 94 and the extending portions 98, the pedestal 2 does not come off the detachable portion 61. Further, when the pedestal 2 slightly rotates around the attaching / detaching portion 61, the support portion 94 on the downstream side of the pair of support portions 94 and the lower surface of the plate-like portion 905 come into contact with each other. Since the extension amount of each of the pair of support portions 94 from the through portion 96 is larger than the extension amount of the extension portion 98, the contact area between the support portion 94 and the plate-like portion 905 is increased. Therefore, the stress which the plate-shaped part 905 receives from the support part 94 reduces.

  As shown in FIG. 17, the motor 224 (see FIG. 10) moves the stopper 81 upstream (arrow 149). On the upstream side of the stopper 81, the guide roller 31 that has moved to the lowest position is disposed. The rubber of the stopper 81 is close to the guide roller 31 and sandwiches the film 24 wound around the guide roller 31 between the guide roller 31 and the rubber. The film 24 is sandwiched between the guide roller 31 and the rubber of the stopper 81. The rotation of the guide roller 31 is restricted. Thereafter, the motor 227 stops driving and stops the rotation of the film roll 22 in the winding direction.

  The motor 225 moves the cutting part 77 from the left side to the right side along the guide rail 74 (see FIG. 8). When the cutting portion 77 moves to the right side, the film 24 is cut by the blade portion 771 on the film roll 22 side from the portion sandwiched between the guide roller 31 and the rubber of the stopper 81. The cutting part 77 cuts out the part which covered the downstream edge part of the base 2 and the articles | goods 3 among the films 24 from the film roll 22 side. After the film 24 is cut, the cut end of the film 24 extending from the film roll 22 hangs down below the pedestal guide roller 71 (see FIG. 18).

  As shown in FIG. 18, the motor 226 swings the holding portion 78 to move the holding roller 72 to a position close to the base guide roller 71 from the downstream side (arrow 150). An end portion of the film 24 cut by the cutting portion 77 is sandwiched between the pedestal guide roller 71 and the holding roller 72.

  The motor 223 raises the heating unit 86 from the lowest position to the highest position (arrow 151). The upper surface of the heating unit 86 is close to the conveyance path 103 from below. Note that the upstream end surface of the plate-like portion 905 has moved upstream by a predetermined distance from the position above the heating portion 86. At the upstream end of the lower surface of the plate-like portion 905, the film 24 guided by the guide roller 31 is in a state of being arranged along the lower surface. Therefore, when the heating unit 86 is raised and disposed at the uppermost position, the upper surface of the heating unit 86 is in a state where the film 24 is sandwiched between the pedestal 2 and the upper surface.

  The heater 871 of the heating unit 86 generates heat and heats the end portion of the film 24 cut by the cutting unit 77. The film 24 melts. The melted film 24 is bonded to the upstream end of the lower surface of the base 2. The film 24 cut from the film roll 22 is in a state of covering the base 2 and the article 3. The base 2 and the article 3 are packaged. The heater 871 stops generating heat after a predetermined time has elapsed.

  As shown in FIG. 19, the motor 223 lowers the heating unit 86 from the top to the bottom (arrow 152). The upper surface of the heating unit 86 is separated from the conveyance path 103. The motor 224 moves the stopper 81 downstream (arrow 153). The rubber provided on the stopper 81 is separated from the guide roller 31. The guide roller 31 is in a rotatable state. Thereafter, the motor 222 rotates the conveyor belts 511 and 512 counterclockwise when viewed from the right side, and conveys the base 2 to the downstream side. Thereby, the base 2 after packaging is conveyed downstream toward the receiving tray 13, and the packaging process is completed.

  As shown in FIG. 11, the CPU 201 determines whether or not the operation detection sensor 43 is ON (S23). When the operation detection sensor 43 is OFF (S23: NO), the CPU 201 enters a standby state. When the detachable portion 61 has not reached the end position, the operation detection sensor 43 is turned off because the operation member 92 (see FIG. 19) has not reached the detected position. The conveyor belts 511 and 512 continue to rotate and continue to convey the packaged base 2 downstream.

  When the operation detection sensor 43 is ON (S23: YES), the CPU 201 stops the rotation of the conveyor belts 511 and 512 by controlling the driving unit 212 and stopping the driving of the motor 222 (S25). As shown in FIG. 20, when the attaching / detaching portion 61 moves to the end position, the operating member 92 reaches the detected position, and the operation detecting sensor 43 is turned on. The conveyor belts 511 and 512 stop rotating. In this case, the pedestal 2 after packaging is conveyed to the cradle 13 and the pedestal discharge sensor 42 (see FIG. 2) is turned on.

  The detected position is a position near the pulley 53A. Therefore, even when the portion of the conveyor belt 511 between the lower part of the pulley 53A and the lower part of the pulley 53B swings up and down, the swing amount of the operating member 92 at the detected position is small. . Therefore, the operation member 92 at the detected position is unlikely to be detached from the detectable region of the operation detection sensor 43. Therefore, the packaging device 1 can suppress a problem that the operation detection sensor 43 is not turned on even though the operation member 92 has moved to the detected position.

  When the attachment / detachment unit 61 moves to the end position, the attachment / detachment unit 62 moves to the start position. The user can attach the other pedestal 2 (hereinafter referred to as the subsequent pedestal 2) to the detachable portion 62 at the start position after removing the packaged pedestal 2 conveyed to the cradle 13 from the detachable portion 61. (Arrow 165). When the user places another article 3 (hereinafter referred to as the succeeding article 3) on the upper surface of the subsequent pedestal 2 and inputs an instruction to start packaging to the operation unit 206, the CPU 201 executes the main process again. Even if a packaging start instruction is input to the operation unit 206 before the user removes the pedestal 2 after packaging from the pedestal 13, the pedestal discharge sensor 42 is ON (S15: YES). The belts 511 and 512 remain stopped.

  Even if the user inputs a packaging start instruction to the operation unit 206 before the user places the subsequent base 2 on the receiving base 12, the base mounting sensor 41 is OFF (S11: NO). The conveyor belts 511 and 512 remain stopped.

  When the CPU 201 executes the second main process (S11 to S25), the conveyor belts 511 and 512 move the attachment / detachment portion 62 at the start position to the end position via the packaging position where the base 2 and the article 3 are packaged. Move. Thereby, the subsequent base 2 and the subsequent article 3 are packaged. When the operating member 93 has moved to the detected position, the second main process ends. When the second main process is completed, the user can attach another pedestal 2 to the attachment / detachment unit 63 moved to the start position (not shown).

  When the CPU 201 repeatedly executes the main process, the packaging device 1 sequentially moves the attachment / detachment units 61 to 63 from the start position to the end position via the packaging position. Thereby, the packaging apparatus 1 can wrap the pedestal 2 and the article 3 that are sequentially inserted successively.

  As described above, the packaging apparatus 1 wraps the base 2 and the article 3 with the film 24 by the CPU 201 executing the main process. When the first main process is completed, the attachment / detachment unit 61 moves to the end position, and the attachment / detachment unit 62 moves to the start position. The packaging device 1 is in a state in which the subsequent article 3 can be packaged without returning the attaching / detaching portion 61 to the start position. Therefore, the packaging device 1 can efficiently and continuously wrap the articles 3 that are sequentially inserted. Moreover, if the base 2 is not attached to any of the attaching / detaching parts 61 to 63 at the start position (S11: YES), the packaging process is not started. Moreover, when the pedestal 2 after packaging is not taken out from the cradle 13 (S15: YES), the subsequent pedestal 2 is not packaged. As described above, the packaging device 1 can efficiently and continuously wrap the articles 3 that are sequentially inserted, and after the packaged article 3 is taken out from the cradle 13, the packaging operation of the subsequent article 3 is performed. You can start reliably.

  Each time the operation detection sensor 43 that detects any of the operation members 91 to 93 that have moved to the detected position is turned on, the conveyance belts 511 and 512 stop rotating. The conveyance belts 511 and 512 stop rotating at positions where any two of the attachment / detachment portions 61 to 63 are arranged at the start position and the end position, respectively. Since the rotation stop positions of the conveyor belts 511 and 512 are stabilized, the packaging device 1 can continuously and stably execute the articles 3 that are sequentially inserted.

  Even if the portion of the conveyor belt 512 between the lower side of the pulley 53A and the lower side of the pulley 53B swings up and down, the amount of swing of the operating members 91 to 93 at the detected position is small. . Thereby, the operation members 91 to 93 at the detected positions are unlikely to be detached from the detectable region of the operation detection sensor 43. Since the packaging device 1 can suppress a problem that the operation detection sensor 43 is not turned on even though the operation members 91 to 93 are in the detected positions, the position where the conveyance belts 511 and 512 stop rotating can be stabilized. Therefore, the packaging apparatus 1 can stabilize the position where the pedestal 2 after packaging stops and the position where the subsequent pedestal 2 is placed on the cradle 12.

  Further, the operating members 91 to 93 are formed separately from the attaching / detaching portions 61 to 63. The actuating members 91 to 93 are positions different from the attaching / detaching parts 61 to 63, and any positions on the outer surface of the conveyor belt 512 as long as they are spaced apart from each other along the rotation direction of the conveyor belt 512. Can be placed. The detected positions of the operating members 91 to 93 can be set flexibly. Therefore, the packaging device 1 can set the arrangement position of the operation detection sensor 43 more flexibly.

  The pedestal 2 conveyed by the attaching / detaching portion 61 is supported from above and below by a pair of support portions 94 and an extending portion 98. Further, the pair of support portions 94 respectively extend clockwise and counterclockwise from the penetration portion 96 in a side view, and the extension portion 98 similarly extends clockwise and counterclockwise from the penetration portion 96 in a side view. Thereby, even if the load which is generated when the base 2 and the article 3 are packaged to rotate the base 2 is directed in the clockwise direction or the counterclockwise direction in the side view, the base 2 is It does not come off from the detachable part 61. Further, the extension amount of each of the pair of support portions 94 from the through portions 96 is larger than the extension amount of the extension portion 98. Thereby, even if the base 2 is slightly rotated around the attaching / detaching portion 61 by the load, even if one support portion 94 of the pair of support portions 94 contacts the lower surface of the plate-like portion 905, the contact area Becomes bigger. The stress that the plate-like portion 905 receives from the support portion 94 is reduced. Therefore, the packaging device 1 can hardly deform the base 2.

  The cradle 12 is an example of the “mounting table” in the present invention. The pedestal mounting sensor 41 is an example of the “first detection means” in the present invention. The motor 222 is an example of the “driving means” in the present invention. The base discharge sensor 42 is an example of the “second detection means” in the present invention. The operation members 91 to 93 and the operation unit 291 are examples of the “plurality of operation members” of the present invention. The operation detection sensor 43 is an example of the “third detection means” in the present invention. The pulleys 52A and 53A are examples of the “drive pulley” of the present invention. The pulleys 52B and 53B are examples of the “driven pulley” of the present invention. The CPU 201 that executes S21 is an example of the “packaging unit” in the present invention. The CPU 201 that executes S19 and S25 is an example of the “control unit” in the present invention. The predetermined interval is an example of the “predetermined length” in the present invention.

  The present invention is not limited to the above embodiment, and various modifications can be made. The conveyance mechanism 50 includes three attachment / detachment portions 61 to 63 on the conveyance belts 511 and 512, but the number of attachment / detachment portions may be two or four or more.

  The detachable parts 61 to 63 do not have to be formed in the same shape. For example, only the detachable part 61 may include a plate-like member extending in the rotation direction of the conveyor belts 511 and 512 instead of the pair of support parts 94. In this case, the plate-like member is fixed to the outer surface of the conveyor belts 511 and 512, and the penetrating portion 96 is connected to the side surface opposite to the conveyor belts 511 and 512.

  After determining whether or not the pedestal mounting sensor 41 is ON (S11), the CPU 201 determines whether or not the pedestal discharge sensor 42 is ON (S15). Instead, the CPU 201 may determine whether the pedestal mounting sensor 41 is ON after determining whether the pedestal ejection sensor 42 is ON.

  The detachable parts 61 to 63 and the operating members 91 to 93 do not need to be separately provided on the transport belt 512. Hereinafter, with reference to FIG. 21, the packaging apparatus 11 which concerns on the modification of the packaging apparatus 1 is demonstrated. The packaging device 11 includes a transport mechanism 250 instead of the transport mechanism 50. In the following description, only the configuration of the transport mechanism 250 that is different from the transport mechanism 50 will be described.

  In place of the attaching / detaching parts 61 to 63 (see FIG. 3), attaching / detaching parts 261 to 263 are fixed to the outer surfaces of the conveying belts 511 and 512 of the conveying mechanism 250. The detachable parts 261 to 263 each include a pair of support parts 94, a penetrating part 96, an extending part 98, and an operating part 291. The operating part 291 protrudes from the extending part 98 toward the side opposite to the penetrating part 96. The operating part 291 is curved in an arc shape in the protruding direction. An operation detection sensor 243 is provided below the conveyor belt 512. The operation detection sensor 243 is a non-contact type sensor (transmission type sensor) that detects the operation unit 291 of the attachment / detachment unit 261 to the attachment / detachment unit 263 at the retracted position. That is, the detected position of the operating part 291 and the retracted position of the attaching / detaching parts 261 to 263 are the same.

  When the motor 222 (see FIG. 3) stops driving at the timing when the operation detection sensor 243 is turned on, any two of the attachment / detachment portions 261 to 263 of the conveyor belts 511 and 512 are at the start position and the end position, respectively. You can stop where it is placed.

  The detachable parts 261 to 263 function as members to be detected that are detected by the operation detection sensor 243 in addition to functioning as members that allow the base 2 to be attached. Since the number of components provided on the transport belt 512 is reduced, the packaging device 11 can simplify the mechanism of the transport mechanism 250.

DESCRIPTION OF SYMBOLS 1,11 Packaging apparatus 2 Base 3 Good 12 Receptacle 24 Film 41 Base mounting sensor 42 Base discharge sensor 43,243 Operation detection sensor 52A, 52B, 53A, 53B Pulley 61, 62, 63, 261, 262, 263 Detachable part 91 , 92, 93 Actuating member 94 Support part 96 Penetration part 98 Extension part 201 CPU
222 Motor 291 Actuator 511, 512 Conveyor belt

Claims (5)

A packaging device comprising packaging means capable of packaging an article placed on a pedestal with a film together with the pedestal,
A mounting table capable of mounting the pedestal before packaging;
First detection means capable of detecting the pedestal before packaging placed on the mounting table;
A plurality of detachable portions to which the pedestal can be attached;
A conveyor belt that is rotatable in a predetermined direction and in which the plurality of attachment / detachment portions are arranged along the rotation direction, and is mounted on any of the plurality of attachment / detachment portions and mounted on the mounting table. A transport belt capable of transporting
By rotating the transport belt in the predetermined direction, the pedestal is wrapped by the wrapping means from a start position where each of the plurality of attaching / detaching portions is sequentially started to transport the pedestal before packaging. Driving means for moving to a finish position, which is a position where the transport of the pedestal after packaging is finished, via a packaging position, which is a position where
Second detection means capable of detecting the pedestal after packaging attached to the detachable part moved to the end position;
Control means for controlling rotation of the conveyor belt by the drive means,
The plurality of attaching / detaching portions are arranged at intervals with a predetermined length, which is a length in the rotation direction from the start position to the end position,
The control means is configured such that when the pedestal after packaging is not detected by the second detection means, and the pedestal before packaging is detected by the first detection means, the transport belt by the driving means is used. A packaging device that allows the start of rotation. A plurality of actuating members disposed on the conveyor belt at predetermined intervals along the rotation direction;
Third detection means capable of detecting whether any of the plurality of operating members is in a predetermined position;
The predetermined position is a position at which one of the plurality of operating members reaches each of the start position and the end position when any two of the plurality of attachment / detachment portions have arrived.
The said control means stops rotation of the said conveyance belt by the said drive means, when it is detected by the said 3rd detection means that either of these operation members exists in the said predetermined position. Item 4. The packaging device according to Item 1. A driving pulley that is rotated by the power of the driving means;
A driven pulley provided apart from the drive pulley,
The conveyor belt is stretched over the drive pulley and the driven pulley,
The packaging apparatus according to claim 2, wherein the predetermined position is a position where any one of the operating members is in the vicinity of the driving pulley or the driven pulley.   The packaging device according to claim 2 or 3, wherein each of the plurality of operating members is provided in the plurality of attaching / detaching portions. Each of the plurality of attachment / detachment portions is
A support portion fixed to the conveyor belt, extending along the rotational direction, and capable of supporting the pedestal;
A penetrating portion that extends in a direction away from the conveyor belt from the support portion and is capable of penetrating the pedestal supported by the support portion;
It connects with the penetration part from the opposite side to the support part, extends from the penetration part in one direction parallel to the rotation direction and the other direction opposite to the one direction, and the pedestal through which the penetration part passes is opposite to the support part. An extended portion that can be supported from the side,
The support portion extends from the penetration portion in the one direction and the other direction, and each extension amount from the penetration portion in the one direction and the other direction is larger than the extension amount of the extension portion. The packaging device according to any one of claims 1 to 4, wherein the packaging device is large.

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