Push-in mechanism and boxing device

Abstract

The invention discloses a pushing mechanism and a boxing device. The pushing mechanism is used for pushing a plurality of bags into a box with a side opening in a standing posture. The push-in mechanism is provided with: a tank waiting unit for waiting the tank; an article placement unit having a placement surface on which the plurality of bags are temporarily placed in a standing posture; and a pushing part which extends in a direction in which the plurality of bags are arranged, and which pushes the plurality of bags placed on the placement surface into the box by moving from the article placement part toward the opening of the box. The pushing-in part is provided with an abutting part, and the abutting part abuts against a part, in the height direction, of the bag in the standing posture and bends in the direction in which one side of the bag is pushed in.

Description

Technical Field

[0001] The present disclosure relates to a pushing mechanism and a boxing device. Background Art

[0002] A pushing mechanism is known, which pushes a plurality of bags in an erected posture into a box that opens laterally. The bag is formed by sealing both ends of a film formed in a tubular shape. As such a pushing mechanism, for example, Japanese Patent No. 6534820 discloses a mechanism including: a box waiting part for waiting for a box; an article placing part having a placing surface for temporarily placing an article (bag); and a pushing plate (pushing part) having a pressing surface for pressing the article toward the box. The mechanism inserts the article into the box by bringing the pushing plate closer to the box.

[0003] In the above-mentioned pushing mechanism, sometimes a part of the bag that has been pushed into the box protrudes from the box. In this case, for example, there is a risk that the bag interferes with peripheral components during the subsequent operation, resulting in the disorder of the posture of the bag inside the box (for example, causing the bag to rotate). Summary of the Invention

[0004] The present disclosure describes a pushing mechanism and a boxing device that can suppress the disorder of the posture of the bag that has been pushed into the box.

[0005] [[ID=1⑨]]One aspect of the present disclosure is a pushing mechanism for pushing a plurality of bags in an erected posture into a box that opens laterally. The bag is formed by sealing both ends of a film formed in a tubular shape. The pushing mechanism includes: a box waiting part for waiting for a box; an article placing part having a placing surface for temporarily placing the plurality of bags in an erected posture; and a pushing part extending in the direction in which the plurality of bags are arranged, and pushing the plurality of bags placed on the placing surface into the box by moving from the article placing part toward the opening of the box. The pushing part has an abutting part that abuts against a part in the height direction of the bag in an erected posture and causes one side of the bag to bend in the pushing direction.

[0006] In this pushing mechanism, one side of the bag that has been pushed into the box bends through the abutting part. As a result, one side of the bag is easily deformed. Therefore, even if the bag that has been pushed into the box interferes with peripheral components, the one side of the bag can be actively deformed to suppress the overall movement of the bag (such as the rotation of the bag). That is, the disorder of the posture of the bag that has been pushed into the box can be suppressed.

[0007] (2) Optionally, in the pushing mechanism described in (1) above, the abutting part protrudes from the pressing surface of the pushing part that pushes the plurality of bags toward the direction in which the pushing part pushes the bags. The protruding height of the abutting part is greater than 1 / 10 of the length of the bag in the pushing direction and less than 1 / 3 of the length of the bag. In this case, the disorder of the posture of the bag that has been pushed into the box can be effectively suppressed.

[0008] (3) Alternatively, in the pushing mechanism described in (1) or (2) above, a lifting part may be further provided. The lifting part raises and lowers the box waiting part, and the pushing part pushes a plurality of bags into the box again after the plurality of bags have been pushed into the box and the box has been lowered by the lifting part. In this case, multiple layers of bags can be arranged inside the box in the height direction.

[0009] (4) Alternatively, in the pushing mechanism described in any one of (1) to (3) above, the abutting part is provided so as to be able to expand and contract in the direction in which the plurality of bags are arranged. In this case, by expanding and contracting the abutting part, the number of the plurality of bags abutted by the abutting part can be adjusted.

[0010] (5) Alternatively, in the pushing mechanism described in any one of (1) to (4) above, one side of the bag where the abutting part bends corresponds to the edge of either one of a pair of sealing parts provided at both ends of the bag. For example, since the rigidity of the sealing part of the bag is relatively high, if the sealing part interferes with the surrounding components, it is likely to cause the posture of the bag inside the box to be disordered. Therefore, when the edge of the sealing part is bent by the abutting part, the effect of suppressing the disorder of the posture of the bag that has been pushed into the box becomes significant.

[0011] (6) Alternatively, in the pushing mechanism described in any one of (1) to (5) above, the abutting part abuts against the central part in the height direction of the bag in the erected posture, and when viewed from the direction in which the plurality of bags are arranged, one side of the bag on the opening side of the box that has been pushed into the box is bent so as to enter the inside. In this case, the abutting part that bends one side of the bag can be specifically realized.

[0012] (7) One aspect of the present disclosure is a box-packing device, including: a conveying mechanism that sequentially conveys bags one by one; an aggregating mechanism that aggregates a predetermined number of bags; and the pushing mechanism described in any one of (1) to (6) above that pushes a predetermined number of bags into a box. In this box-packing device, the effect of suppressing the disorder of the posture of the bag that has been pushed into the box by the above-mentioned pushing mechanism is also achieved.

[0013] According to the present disclosure, the disorder of the posture of the bag that has been pushed into the box can be suppressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a block diagram of a box-packing device according to an embodiment.

[0015] Figure 2 shows Figure 1 a perspective view of the flow of a corrugated cardboard box and goods of the box-packing device.

[0016] Figure 3A shows the Figure 1 transportation steps of the item group by the commodity transportation part.Figure 3B is the subsequent figure showing Figure 3A . Figure 3C is the subsequent figure showing Figure 3B . Figure 3D is the subsequent figure showing Figure 3C . Figure 3E is the subsequent figure showing Figure 3D .

[0017] Figure 4 is a simplified side view showing the pushing mechanism of Figure 1 .

[0018] Figure 5 is a perspective view showing the pushing part of Figure 1 .

[0019] Figure 6 is a simplified side view explaining the operation of the pushing mechanism of Figure 4 .

[0020] Figure 7 is a simplified side view explaining the subsequent part of Figure 6 .

[0021] Figure 8 is a simplified side view explaining the subsequent part of Figure 7 .

[0022] Figure 9 is a figure explaining the rotation of the bag inside the corrugated cardboard box. Detailed Embodiment

[0023] Hereinafter, the embodiments will be described with reference to the drawings. In the following description, for convenience, the front, rear, up, down, left, and right directions with respect to the packing device 1 are used. In several figures, three-dimensional orthogonal axes showing these directions are displayed. As an example, the position where the box material Z is placed and the position where the corrugated cardboard box B after sealing is discharged are the front part of the packing device 1. The position where the commodity supply unit 50 is provided is the rear part of the packing device 1. The front-rear direction and the left-right direction are both horizontally extending directions. The up-down direction is the same as the vertical direction.

[0024] First, the overall structure of the packing device 1 will be described with reference to Figure 1 and Figure 2 . As shown in Figure 1As shown, the packing device 1 is a device that assembles (manufactures boxes) a corrugated cardboard box (box) B, houses a plurality of bags A in the corrugated cardboard box B, and seals the corrugated cardboard box B. The packing device 1 assembles the plurality of box materials Z housed in the box material housing section 11 one by one, and packs the plurality of bags A supplied from the outside by the commodity supply unit 50 and sequentially carried in into the corrugated cardboard box B in an arranged state. The bag A is an article (commodity) formed by sealing both end portions of a film formed in a tubular shape. The bag A includes sealing portions 2 at both end portions thereof.

[0025] As Figure 1 and Figure 2 shown, the packing device 1 includes: a box supply unit 10 that assembles and supplies the corrugated cardboard box B; a commodity supply unit 50 that sequentially supplies a plurality of bags A; a pushing mechanism 20 that pushes and houses the plurality of bags A in the corrugated cardboard box B; and a sealing unit 30 that transports and seals the corrugated cardboard box B housing the plurality of bags A. Hereinafter, each structure included in the packing device 1 will be described.

[0026] The box supply unit 10 includes: a box material housing section 11 that houses a plurality of box materials Z; a box manufacturing section 12 that assembles the box body Ba of the corrugated cardboard box B; and a first rotating section 13 that rotates the assembled box body Ba. The box material housing section 11 supports the plurality of box materials Z stacked on top of each other by a support section (not shown). The box material housing section 11 includes a lifting mechanism 11a that takes out each box material Z piece by piece. Each box material Z taken out by the lifting mechanism 11a is transported to the subsequent stage by a conveyor (not shown).

[0027] The box manufacturing section 12 receives each box material Z, expands the box material Z into a tubular shape, and folds the flap Bf on the bottom surface side and pastes a tape on the bottom surface Bc. Thereby, the box body Ba is further transported to the subsequent stage with the opening Bp facing upward. In the present embodiment, "manufacturing the box" of the corrugated cardboard box B means forming the box body Ba in a rectangular parallelepiped shape. Therefore, "manufacturing the box" does not require folding the flap Bf on the upper surface side. Alternatively, the box manufacturing section 12 may include an adsorption rotating mechanism 12a that rotates the box body Ba so that the long side D of the box body Ba faces the transport direction.

[0028] The box body Ba of the corrugated cardboard box B is a rectangular parallelepiped. That is, the box body Ba includes a top surface Bd (refer to Figure 2The sealed corrugated cardboard box B shown in the lower right corner of the figure has four parallel sides of equal length extending in the vertical direction in the reference posture facing upward. On the other hand, the box body Ba has a rectangular top surface Bd and a bottom surface Bc that overlap each other. The top surface Bd and the bottom surface Bc each include a pair of short sides C and a pair of long sides D. In addition, on the top surface Bd, when the flaps Bf are opened, the box body Ba has an opening Bp. This opening Bp also includes a pair of short sides C and a pair of long sides D, just like the top surface Bd. (In addition, strictly speaking, there is a difference in the thickness of the box material Z between the top surface Bd and the opening Bp, but they are not distinguished in this embodiment.)

[0029] The first rotating unit 13 rotates the finished corrugated cardboard box B into a predetermined posture. For example, the first rotating unit 13 rotates the box so that the long side D is positioned downward and the opening Bp faces sideways. The posture of the corrugated cardboard box B controlled by the first rotating unit 13 is controlled, for example, by the controller 60 described below.

[0030] The product supply unit 50 includes a product loading section 51 and a product transport section 52. The product loading section 51 is located downstream of a process that performs weight, sealing, and foreign matter inspections, for example. It receives bags A that have passed inspection and delivers each bag A to the product transport section 52. The product loading section 51 includes a product inlet conveyor 51a and a product inlet conveyor 51b located downstream of the product inlet conveyor 51a. Each bag A is transferred from the product inlet conveyor 51a to the product inlet conveyor 51b, where it is transported along a support wall (not shown). The product loading section 51 corresponds to a transport mechanism that sequentially transports bags A one by one.

[0031] The commodity transporting section 52 receives the bags A from the commodity carrying section 51 and gathers a predetermined number of bags A to form a commodity group X. The commodity transporting section 52 corresponds to a gathering mechanism for gathering the bags A. Figure 3A 、 Figure 3B as well as Figure 3C As shown, the commodity conveying section 52 includes: a first arranging conveyor 52a, which conveys bags A at a predetermined interval L; and a second arranging conveyor 52b, which receives a plurality of bags A from the first arranging conveyor 52a in a state where parts of the bags A overlap with each other, and conveys them to the article loading section 22 described later.

[0032] The first array conveyor 52a and the second array conveyor 52b are each tilted at a predetermined angle. Alternatively, the tilt angles of the first array conveyor 52a and the second array conveyor 52b may be adjusted. Figure 3DAs shown, when the product group X is formed on the article placement unit 22, the next bag A is sequentially supplied to the first alignment conveyor 52a, and a part of the bags A is transferred to the second alignment conveyor 52b. As Figure 3E shown, on the article placement unit 22, a plurality of bags A are arranged in a row in the left-right direction.

[0033] As Figure 1 and Figure 2 shown, the pushing mechanism 20 is a mechanism that pushes a plurality of bags A carried in an erected posture into a corrugated cardboard box B that opens to the side. The pushing mechanism 20 houses a plurality of bags A in the corrugated cardboard box B. Details of the pushing mechanism 20 will be described later.

[0034] The case sealing unit 30 includes: a second rotating unit 31 that rotates the box body Ba containing a plurality of bags A, and a case sealing unit 32 that closes the opening Bp of the box body Ba rotated by the second rotating unit 31 with the folding flap Bf and pastes a tape. The second rotating unit 31 rotates the corrugated cardboard box B so that the conveying direction of the corrugated cardboard box B matches the pasting direction of the tape by the case sealing unit 32. The case sealing unit 32 includes a tape pasting unit 34. The case sealing unit 32 folds the folding flap Bf on the top surface side with respect to the box body Ba conveyed by the discharge conveyor 33, and pastes a tape on the top surface Bd by the tape pasting unit 34.

[0035] The packing device 1 includes a controller 60 that controls the operations of the box supply unit 10, the pushing mechanism 20, the case sealing unit 30, and the product supply unit 50. The controller 60 is configured as a computer device including a processor such as a CPU, a memory such as a ROM and a RAM, a storage, and a communication device. In the controller 60, the processor executes a predetermined software (program) read into the memory and the like, and controls the reading and writing of data in the memory and the storage, and communication based on the communication device, thereby realizing various controls.

[0036] Next, details of the pushing mechanism 20 will be described. As Figure 2 and Figure 4 shown, the pushing mechanism 20 includes a box waiting unit 21, an article placement unit 22, a pushing unit 23, and a lifting unit 28. The box waiting unit 21 is a mechanism or device for waiting for the corrugated cardboard box B. The box waiting unit 21 holds the corrugated cardboard box B in a state where the long side D is located below and the opening Bp faces the side (here, the rear). There is no particular limitation on the box waiting unit 21, and various known techniques can also be used.

[0037] The article placement section 22 has a placement surface 22a for temporarily placing a plurality of bags A in an erected posture. The placement surface 22a is a horizontal plane. The height position of the placement surface 22a corresponds to the holding position of the corrugated cardboard box B based on the box waiting section 21. The article placement section 22 is constituted by, for example, a conveyor. In the article placement section 22, by transferring a plurality of bags A toward the erected conveyor 22e, the plurality of bags A are erected (see Figure 3D and Figure 3E ).

[0038] As Figure 4 , Figure 6 and Figure 7 show, the pushing-in section 23 extends in the direction in which the plurality of bags A are arranged, that is, the left-right direction. The pushing-in section 23 moves from the article placement section 22 toward the opening Bp of the corrugated cardboard box B, thereby pushing the plurality of bags A placed on the placement surface 22a into the corrugated cardboard box B. The pushing-in section 23 has a transfer plate 24 and a contact section 25.

[0039] The transfer plate 24 is configured to be slidable in the front-rear direction. The transfer plate 24 includes a pressing surface 24a on its front surface. The transfer plate 24 is driven by the controller 60 and moves forward at the moment when the holding of the corrugated cardboard box B in the box waiting section 21 and the placement of the plurality of bags A in the article placement section 22 are completed. Thereby, the plurality of bags A are pushed forward by the pressing surface 24a and pushed (transferred) into the box body Ba. The transfer plate 24 moves forward until the bag A pressed by the pressing surface 24a contacts the bottom surface Bc of the corrugated cardboard box B. As an example, the transfer plate 24 moves forward until the pressing surface 24a is located inside the corrugated cardboard box B.

[0040] As Figure 5 shows, the transfer plate 24 includes a first transfer plate 24x and a second transfer plate 24y. The second transfer plate 24y is provided so as to be movable in the left-right direction relative to the first transfer plate 24x. The second transfer plate 24y has a nested structure that is connected to the first transfer plate 24x and can be accommodated in the first transfer plate 24x. Thereby, the transfer plate 24 is provided so as to be expandable and contractible in the left-right direction.

[0041] As Figure 4 , Figure 6 and Figure 7 [[ID=3)), the contact section 25 contacts a part of the bag A in the erected posture in the height direction and bends one side of the bag A in the direction in which the pushing-in section 23 pushes in. The one side of the bag A bent by the contact section 25 corresponds to the edge of the sealing section 2 provided on the bag A. In the present embodiment, the contact section 25 contacts the central portion of the bag A in the erected posture in the height direction, and when viewed from the left-right direction, bends one side of the sealing section 2 on the rear side (opening Bp side) of the bag A that has been pushed into the corrugated cardboard box B so as to enter the inside (see Figure 6 andFigure 7 ). When the pushing portion 23 pushes the bag A into the corrugated cardboard box B, the abutting portion 25 deforms a part of the bag A and pushes it into the corrugated cardboard box B. By bending one side of the bag A using the abutting portion 25, a recess 5 that is recessed corresponding to the shape of the abutting portion 25 is formed at the rear side of the bag A.

[0042] The abutting portion 25 is fixed to the transfer plate 24 by screws or the like. The abutting portion 25 is a protrusion that protrudes forward from the pressing surface 24a in the direction of pushing the bag A into the pushing portion 23, that is, forward. The abutting portion 25 is a rib that extends in the left - right direction and protrudes forward. The abutting portion 25 has a curved surface on its front surface. For example, the shape of the abutting portion 25 is curved in a manner that protrudes forward on the front side when viewed from the left - right direction. As an example, the shape of the abutting portion 25 is a semi - cylindrical shape. The protruding height of the abutting portion 25 is greater than 1 / 10 of the length of the bag A in the front - rear direction and less than 1 / 3 of the length of the bag A in the front - rear direction. The abutting portion 25 is provided at the lower part of the pressing surface 24a. Here, a gap for preventing the bag A from getting stuck is formed between the abutting portion 25 and the lower end edge of the pressing surface 24a.

[0043] As Figure 5 shown, the abutting portion 25 includes a first abutting portion 25x provided on the first transfer plate 24x and a second abutting portion 25y provided on the second transfer plate 24y. By moving the second transfer plate 24y relative to the first transfer plate 24x in the left - right direction, the second abutting portion 25y moves relative to the first abutting portion 25x in the left - right direction. The second abutting portion 25y forms a nested structure that is connected to the first abutting portion 25x and can be accommodated in the first abutting portion 25x. Thus, the abutting portion 25 is provided so as to be able to expand and contract in the left - right direction. As Figure 4 、 Figure 6 and Figure 7 shown, the lifting portion 28 lifts and lowers the box waiting portion 21. As the lifting portion 28, there is no particular limitation, and for example, it may include various known structures such as a conveyor belt.

[0044] In such a pushing mechanism 20, as an example, first, the box waiting part 21 is lowered by the lifting part 28, and the corrugated cardboard box B held in a state with the opening Bp facing backward is lowered to a height position corresponding to the pushing part 23. The pushing part 23 moves forward, and presses a plurality of bags A arranged upright on the article placing part 22 forward through the pressing surface 24a. Thus, the plurality of bags A are pushed into the corrugated cardboard box B. Thereafter, the pushing part 23 moves backward and returns to the initial position, and another plurality of bags A are conveyed to the article placing part 22 by the commodity conveying part 52. Then, the box waiting part 21 is lowered again by the lifting part 28, and the corrugated cardboard box B is lowered by a predetermined distance (a distance corresponding to the width direction of the bag A). The pushing part 23 moves forward again, and presses a plurality of bags A arranged upright on the article placing part 22 forward through the pressing surface 24a. Thus, the plurality of bags A are pushed into the corrugated cardboard box B again in a manner of being stacked on the plurality of bags A that have already been accommodated.

[0045] In the pushing mechanism 20 and the packing device 1 of the present embodiment, one side of the bag A that has been pushed into the corrugated cardboard box B by the pushing mechanism 20 is bent by the abutting part 25 (refer to Figure 7 ). Thus, one side of the bag A is easily deformed. Therefore, for example, Figure 8 as shown, in order to further accommodate a plurality of bags A in the corrugated cardboard box B, when the box waiting part 21 is lowered by the lifting part 28, even if the bag A that has already been pushed into the corrugated cardboard box B interferes with the peripheral component 90, only one side of the bag A can be actively deformed to suppress the overall movement of the bag A (such as Figure 9 rotation of the bag A in the corrugated cardboard box B as shown). That is, the posture disorder of the bag A that has been pushed into the corrugated cardboard box B can be suppressed. The stability of packing the bag A into the corrugated cardboard box B can be ensured.

[0046] In the present embodiment, the abutting part 25 protrudes forward from the pressing surface 24a of the pushing part 23 that pushes a plurality of bags A, and the protruding height of the abutting part 25 is greater than 1 / 10 of the length of the bag A in the front-rear direction and less than 1 / 3 of the length of the bag A. In this case, the posture disorder of the bag A that has been pushed into the corrugated cardboard box B can be effectively suppressed.

[0047] In the present embodiment, the pushing mechanism 20 further includes a lifting part 28 that raises and lowers the box waiting part 21. The pushing part 23 pushes a plurality of bags A into the corrugated cardboard box B again after the plurality of bags A have been pushed into the corrugated cardboard box B and the corrugated cardboard box B has been lowered by the lifting part 28. In this case, multiple layers of bags A can be arranged inside the corrugated cardboard box B in the height direction.

[0048] In the present embodiment, the abutting portion 25 is configured to be able to expand and contract in the left-right direction. In this case, by expanding and contracting the abutting portion 25, the number of the plurality of bags A with which the abutting portion 25 abuts can be adjusted.

[0049] For example, in the bag A, the rigidity of the sealing portion 2 is relatively high. Therefore, if the sealing portion 2 interferes with the peripheral member 90, the bag A rotates inside the corrugated cardboard box B, and it is easy to cause a large disorder in the posture of the bag A. In this regard, in the present embodiment, one side of the bag A bent by the abutting portion 25 corresponds to the edge of any one of the pair of sealing portions 2 of the bag A. Thus, when the edge of the sealing portion 2 is bent by the abutting portion 25, the effect of suppressing the disorder in the posture of the bag A that has been pushed into the corrugated cardboard box B is remarkable.

[0050] In the present embodiment, the abutting portion 25 abuts against the central portion in the height direction of the bag A in the erected posture. When viewed in the left-right direction, the abutting portion 25 bends one side of the bag A on the opening Bp side of the corrugated cardboard box B of the bag A that has been pushed into the corrugated cardboard box B so as to enter the inside. In this case, the abutting portion 25 that bends one side of the bag A can be specifically realized.

[0051] The above has described the embodiments, but one aspect of the present disclosure is not limited to the above embodiments.

[0052] In the above embodiment, the length of 1 / 10 includes approximately the length of 1 / 10, including errors such as measurement errors. Similarly, in the above embodiment, the length of 1 / 3 includes approximately the length of 1 / 3, including errors such as measurement errors. In the above embodiment, the box supply unit 10 may be omitted, and in the packing device 1, the box sealing unit 30 may also be omitted. The structure of the commodity supply unit 50 may also be appropriately changed from the above embodiment. In the above embodiment, the peripheral member 90 is not particularly limited, and various members that can exist in the periphery (nearby, close positions) of the corrugated cardboard box B in the box waiting portion 21 may be used.

[0053] The structures of the above embodiments and the above modification examples are not limited to the above materials and shapes, and various materials and shapes can be applied. In addition, the structures of the above embodiments and modification examples can be arbitrarily applied to the structures of other embodiments or modification examples.

Claims

1. A pushing mechanism, characterized in that, the pushing mechanism is used to push a plurality of bags into a box with a side opening in an upright posture, and the bags are formed by sealing both ends of a film formed in a tubular shape. The pushing mechanism includes: a box waiting part for waiting for the box; an article placing part having a placing surface on which a plurality of the bags are temporarily placed in an upright posture; and a pushing part extending in the direction in which the plurality of bags are arranged, and pushing the plurality of bags placed on the placing surface into the box by moving from the article placing part toward the opening of the box. The pushing part has an abutting part that abuts against a part in the height direction of the bag in an upright posture and bends one side of the bag in the pushing direction.

2. The pushing mechanism according to claim 1, characterized in that, the abutting part protrudes from the pressing surface of the pushing part for pushing the plurality of bags toward the direction in which the pushing part pushes the bags. The protruding height of the abutting part is greater than 1 / 10 of the length of the bag in the pushing direction and less than 1 / 3 of the length of the bag.

3. The pushing mechanism according to claim 1 or 2, characterized in that, the pushing mechanism further includes a lifting part that lifts and lowers the box waiting part. The pushing part pushes a plurality of bags into the box that has been lowered by the lifting part again after the plurality of bags have been pushed into the box.

4. The pushing mechanism according to claim 1 or 2, characterized in that, the abutting part is arranged to be able to expand and contract in the direction in which the plurality of bags are arranged.

5. The pushing mechanism according to claim 1 or 2, characterized in that, one side of the bag bent by the abutting part corresponds to the edge of either one of a pair of sealing parts provided at both ends of the bag.

6. The pushing mechanism according to claim 1 or 2, characterized in that, the abutting part abuts against the central part in the height direction of the bag in an upright posture, and when viewed from the direction in which the plurality of bags are arranged, bends the side of the bag on the opening side of the box that has been pushed into the box so as to enter the inside.

7. A packing device, characterized in that, It includes: a conveying mechanism that conveys the bags one by one in sequence; an aggregating mechanism that aggregates a predetermined number of the bags; and the pushing mechanism according to claim 1 or 2 that pushes the predetermined number of the bags into the box.

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