JP5240484B1 - Body winding packaging equipment - Google Patents

Abstract

The present invention provides a body wrapping apparatus capable of body wrapping a laminated product bundle formed by laminating a plurality of products in a vertical direction in a stable state.
A product supply position A where a laminated product bundle W is supplied downward on a moving path of an elevator 310, an upper surface folding position where a sheet S is folded on the upper surface of the laminated product bundle W, and a body wrapped. The transfer start position for transferring the laminated product bundle W is sequentially set. The upper surface folding position is defined as a position where the upper surface of the laminated product bundle W stops. The process of pressing the laminated product bundle W supplied to the product supply position A with the press plate 321 and lowering the sheet S and the laminated product bundle W to the upper surface folding position by the elevator 310 while maintaining the pressed state. Then, the sheet S is folded on both the front and rear side surfaces of the laminated product bundle W, and the sheet S is folded on the upper surface of the laminated product bundle W at the upper folding position to complete the body-wrapping packaging.
[Selection] Figure 3

Description

  The present invention relates to a body wrapping apparatus for body wrapping the outer periphery of a laminated product bundle obtained by laminating a plurality of products such as papers and booklets with a sheet (packaging material).

  The body-wrapping device places a laminated product bundle on a sheet cut into a rectangular shape, folds the sheet along both side surfaces of the laminated product bundle, and then forms the sheet along the upper surface of the laminated product bundle. It has a structure for folding and finally pasting the polymerized portion of the sheet with glue or adhesive tape to form a body-wrapped form.

  Patent Document 1 discloses a conventional body wrapping apparatus. As described in paragraphs “0032” to “0039” of the specification 1 and the FIG. 3, the body wrapping device disclosed in the document 1 has a deposit B (laminated product bundle) on the upper surface of the package sheet. The packaging sheet is folded up along both side surfaces of the deposit B by placing and lowering the elevator 1. Next, the compression receiving plate 3 is arranged at a position facing the upper surface of the deposit B, and the elevator is slightly raised from this state, and the deposit B is compressed in the vertical direction between the elevator 1 and the compression receiving plate 3. At the same time, the body winding guides 2 and 2 are alternately protruded in the horizontal direction to tighten the packaging sheet. Subsequently, the overlapped portion of the packaging sheet is attached with an adhesive tape to complete the body-wrapped packaging. Thereafter, the elevator 1 is slightly lowered to release the compressed state of the deposit B, and the compression receiving plate 3 is pulled out in the horizontal direction.

  The body wrapping apparatus disclosed in Patent Document 2 also has the same configuration as the apparatus of Patent Document 1 described above, and performs body wrapping with the same operation (paragraphs “0033” to “0041” in the document 2). And see FIG. 5)

  As described above, the body wrapping apparatus disclosed in Patent Documents 1 and 2 includes a configuration in which the laminated product bundle is compressed in the vertical direction by the compression receiving plate during the body wrapping. The compression was for tightly wrapping the wrapping sheet for wrapping. Therefore, during the operation of lowering the elevator and folding the packaging sheets on both sides of the laminated product bundle, the laminated product bundle is not compressed by the compression receiving plate, and the laminated product is in an unstable state and is lowered downward. It will be moved. Therefore, during the lowering operation, the individual products forming the laminated product bundle may be misaligned, resulting in a deformed body-wrapping form, or the laminated product bundle may collapse and become inoperable. .

JP-A-5-330509 Japanese Patent Laid-Open No. 6-211205

  This invention is made | formed in view of the situation mentioned above, and aims at provision of the body-wrapping apparatus which can carry out the body-wrapping of the laminated product bundle formed by laminating | stacking several products in the vertical direction in the stable state. .

In order to achieve the above object, the present invention is a body-wrapping apparatus for body-wrapping a laminated product bundle in which a plurality of products are stacked in the longitudinal direction with a sheet as a packaging material,
Elevating means for raising and lowering the sheet and the laminated product bundle in a state where the laminated product bundle is placed on the upper surface of the sheet, a pressing means for pressing and compressing the upper surface of the laminated product bundle from above, and a sheet on the upper surface of the laminated product bundle A top sheet folding means for folding
In addition, the product supply position where the laminated product bundle is supplied, the upper surface folding position where the sheet is folded on the upper surface of the laminated product bundle, and the laminated product bundle wrapped around the body are transported downward on the moving path of the lifting means. The transfer start position is set sequentially,
The upper surface folding position is defined as the position where the upper surface of the laminated product bundle stops,
While pressing the laminated product bundle supplied to the product supply position with the press means, the sheet and the laminated product bundle are lowered to the upper surface folding position by the lifting means while maintaining the pressed state, and in the process of lowering the laminated product bundle, Fold the sheet to the front and rear or left and right sides, the top sheet folding means folds the sheet on the top surface of the laminated product bundle at the top folding position to complete the body-wrapped packaging, and the transporting position of the laminated product bundle wrapped by the body-wrapped by the lifting means It is characterized in that it is configured to be lowered.

  In this way, the present invention presses the laminated product bundle supplied to the product supply position with the pressing means, and lowers the sheet and the laminated product bundle to the upper surface folding position by the lifting means while maintaining this pressed state, and the lowering operation In this process, the sheet is folded at the front and rear or the left and right side surfaces of the laminated product bundle. Therefore, there is no possibility that the individual products forming the laminated product bundle are misaligned while the laminated product bundle moves in the vertical direction, and the laminated product bundle can be wound and wrapped in a stable state.

  Now, the height dimension of the stacked product bundle varies depending on the thickness of each product, the number of stacked layers, and the like. On the other hand, the upper surface folding position for folding the sheet on the upper surface of the laminated product bundle needs to be a fixed position because of the installation of the upper sheet folding means. In view of this, the present invention defines the "upper surface folding position" as the position where the upper surface of the laminated product bundle stops, and pays attention to the upper surface of the laminated product bundle so as to control the lowering operation of the laminated product bundle by the lifting means. Thus, accurate positioning of the upper surface of the laminated product bundle at the upper surface folding position is realized regardless of variations in the height dimension of the laminated product bundle.

The elevating means includes a mounting board on which the stacked product bundle is mounted on the upper surface of the sheet, and a vertical drive mechanism for moving the mounting board up and down. be able to.
In addition, the pressing means applies a pressing plate that presses the upper surface of the stacked product bundle placed on the mounting board from above, and applies a downward pressing force to the pressing board. It can be set as the structure provided with the pushing-down mechanism which descends the said press plate.
If the lower end of the press plate by the pressing mechanism is set to the upper surface folding position, the upper surface of the laminated product bundle can be easily and accurately moved to the upper surface folding position without monitoring the upper surface position of the laminated product bundle using a sensor or the like. It becomes possible to arrange in.

  If necessary, the upper surface position of the laminated product bundle can be monitored by a sensor or the like, and the upper surface of the laminated product bundle can be positioned at the upper surface folding position. In addition, the height dimension of the laminated product bundle in the compressed state is measured in advance, and the lowering amount by the lifting means is adjusted based on the height dimension, and the upper surface of the laminated product bundle is positioned at the upper surface folding position. You can also.

The press plate is held at the upper surface folding position, and the upper sheet folding means holds the pressed state against the laminated product bundle by the press plate until the upper sheet folding means folds the sheet onto the upper surface of the laminated product bundle to complete the body wrapped packaging, and the wound packaging is completed. After that, the pressed state can be released and moved in the left-right or front-rear direction so as to come out from between the upper surface of the laminated product bundle and the sheet folded on the upper surface.
In this way, by holding the pressed state of the laminated product bundle until the laminated product bundle is wound around by the sheet and no positional deviation occurs in each product, an appropriate trunk-wrapped form with no shape loss is more reliably formed. It becomes possible.

Furthermore, this invention is good also as a structure provided with the load collapse prevention means which supports the left and right or the front and back side surfaces of the laminated product bundle descending from the product supply position to the upper surface folding position. The load collapse prevention means moves from both sides of the laminated product bundle supplied to the product supply position, contacts the left and right or front and rear sides of the laminated product bundle, and folds from the product supply position together with the press plate. It can be set as the structure containing a pair of press support plate which descends to a position.
By providing such load collapse prevention means, it is possible to more reliably prevent the positional deviation of the individual products forming the laminated product bundle.

It is process drawing for demonstrating the outline | summary of the packaging system in which the body winding packaging apparatus which concerns on embodiment of this invention is integrated. It is a figure for demonstrating a sheet | seat tailoring apparatus. It is sectional drawing which shows the structure and operation | movement of an elevator typically. It is a perspective view which shows typically a structure and operation | movement of a press mechanism. (A)-(c) is a schematic diagram which shows the structure and operation | movement of an upper surface winding mechanism, (d) is a perspective view similarly. FIG. 5 is a cross-sectional view schematically showing the configuration and operation of the elevator and the press mechanism following FIG. 4. It is a front view which shows the specific structural example of an elevator, a press mechanism, and a load collapse prevention mechanism.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[Outline of packaging system]
FIG. 1 is a process diagram for explaining an outline of a packaging system in which a case-wrapping apparatus according to an embodiment of the present invention is incorporated.
The packaging system shown in FIG. 1 is a roll-wrapped laminated product bundle in which a plurality of products are stacked in the vertical direction, and is wrapped around with a sheet as a packaging material, and is further extended outward from both ends of the laminated product bundle. This is a packaging system that forms a so-called overwrapping form in which the (extended portion) is folded to cover a laminated product bundle. The body wrapping apparatus according to the present embodiment is incorporated in the wrapping system and is responsible for the body wrapping of the laminated product bundle with sheets.

The packaging system shown in FIG. 1 is composed of the laminated product bundle supply device 100, the sheet tailoring device 200, the body winding packaging device 300, the transfer device 400, and the sheet folding device 500.
That is, the laminated product bundle supply device 100 supplies the laminated product bundle W to the preset product supply position A, and the sheet tailoring device 200 is set immediately below the product supply position A in parallel with this. The sheet-like packing sheet S is cut and supplied to the sheet supply position B. At this time, an adhesive tape T (adhesive medium) is attached to the leading edge of the sheet S.

  Subsequently, the body wrapping apparatus 300 performs body wrapping with the sheet S supplied to the sheet supply position B while pressing and compressing the upper surface of the laminated product bundle W supplied to the product supply position A from above. In the present embodiment, the body-wrapping form is a form in the middle of the packaging operation, and the ears S1 extend outward from both ends of the laminated product bundle. In addition, it is also possible to set it as the system configuration which carries out a trunk winding packaging form as a final packaging form, without extending the ear | edge part S1.

The laminated product bundle W1 wrapped around the sheet S in this way is transferred to the working position of the sheet folding device 500 by the transfer device 400, and the sheet folding device 500 folds the ear S1 of the sheet S at the same position. In addition, 500a, 500b, 500c of FIG. 1 has shown the folding procedure of the ear | edge part S1.
The laminated product bundle W2 wrapped and wrapped in this manner is carried out by the transfer device 400.

[Sheet making device]
FIG. 2 is a diagram for explaining the sheet tailoring apparatus.
The sheet tailoring apparatus 200 includes a sheet conveying mechanism 210, an adhesive tape applying mechanism 220, and a sheet cutter 230.
The sheet transport mechanism 210 feeds the web-shaped sheet S from a winding roll (not shown), transports the leading edge of the sheet S to a preset adhesive tape application position 221 and stops (see FIG. 2B). . Next, the adhesive tape attaching mechanism 220 attaches the adhesive tape T to the leading edge of the sheet S arranged at the adhesive tape attaching position 221. Thereafter, the sheet transport mechanism 210 feeds the sheet S and places the sheet S at the sheet supply position B (see FIG. 1), and the sheet cutter 230 cuts the sheet S into a predetermined length (FIG. 2C). reference).

[Body winding device]
Next, the body wrapping apparatus according to the present embodiment will be described with reference to the drawings.
3-7 is a figure for demonstrating the body winding packaging apparatus which concerns on this embodiment.
The body wrapping apparatus 300 includes an elevator 310 (elevating means), a press mechanism 320 (press means), a load collapse prevention mechanism 330 (load collapse prevention means), and an upper surface sheet folding mechanism 340 (upper surface sheet folding means). ing.

  On the lifting path of the elevator 310, the product supply position A where the laminated product bundle W is supplied downward, the sheet supply position B where the sheet S is arranged, and the sheet S are folded on the upper surface of the laminated product bundle W. An upper surface folding position C and a transfer start position D for transferring the laminated product bundle wrapped around the body are sequentially set. Among these, the floor board A1 is installed on the same plane of the product supply position A, but this floor board A1 is divided into two pieces as shown in FIG. The interference when the press mechanism 320 and the load collapse prevention mechanism 330 are raised and lowered is avoided. Although not shown in FIG. 4, the floor board B1 is also installed on the same plane of the sheet supply position B, and this floor board B1 is also not shown in FIG. The interference mechanism when the press mechanism 320 and the load collapse prevention mechanism 330 are moved up and down is avoided.

  As shown in FIG. 3, the elevator 310 includes a mounting board 311 that can be raised and lowered. The elevator 310 is controlled by the above-described sheet tailoring apparatus 200 so that when the sheet S is conveyed at the sheet supply position B, the placement board 311 is raised in advance and placed at the sheet supply position B ( (Refer FIG.3 (b)).

  Further, when the laminated product bundle W is supplied to the product supply position A, the elevator 310 is controlled so as to raise the placement board 311 in advance and lift the sheet S and to arrange the product S at the product supply position A ( (Refer FIG.3 (c)). As a result, the placement board 311 with the sheet S on the upper surface is arranged at the product supply position A.

  When the laminated product bundle W is supplied and arranged at the product supply position A, the press mechanism 320 is operated to press the press plate 321 against the upper surface of the laminated product bundle W from above to compress the laminated product bundle W. Subsequently, the elevator 310 is lowered and the upper surface of the laminated product bundle W is positioned at the upper surface folding position C. During this time, the pressed state of the laminated product bundle W by the press mechanism 320 is maintained (see FIG. 3D).

FIG. 4 is a perspective view schematically showing the configuration and operation of the press mechanism.
The press mechanism 320 includes a pair of left and right press plates 321 and an air cylinder 322 (pressing mechanism) that presses the press plates 321 from above. Each press plate 321 is movable in the left-right direction, and is driven in the left-right direction by an air cylinder 323 for horizontal drive, and is disposed at an upper position of the stacked product bundle W disposed at the product supply position A. (See FIG. 4 (a)).
A specific configuration of the air cylinders 322 and 323 will be described later with reference to FIG.

  Next, each air cylinder 322 is driven to push down each press plate 321 downward. Thereby, each press plate 321 presses and compresses the upper surface of the laminated product bundle W (see FIG. 4B). Subsequently, while the downward driving force of each air cylinder 322 is maintained, the placement board 311 of the elevator 310 is lowered and the upper surface of the laminated product bundle W is disposed at the upper surface folding position C (FIG. 4C). )reference). Since the laminated product bundle W moves downward while maintaining a compressed state between the mounting board 311 and the press plate 321, the individual products forming the laminated product bundle W are displaced during the movement. There is no risk.

  The load collapse prevention mechanism 330 includes a pair of side support plates 331 that press and support both side surfaces of the laminated product bundle W disposed at the product supply position A in the left-right direction. These side support plates 331 are horizontally driven in the left-right direction by a stepping motor (not shown) and descend the press plate 321 together with the driving force of the air cylinder 322. These side support plates 331 have a flat vertical surface, and when moved down, the lateral position of the side support plate 331 is such that the vertical surface supports both lateral surfaces of the laminated product bundle W. It is controlled. While the laminated product bundle W moves downward from the product supply position A, both side surfaces in the left-right direction are supported by the pair of side support plates 331, and the load collapse in the left-right direction is prevented.

Furthermore, in this embodiment, one front side surface support plate 335 and two rear side surface support plates 336 are provided (see FIG. 3D and FIG. 6). Each of these support plates 335 and 336 is a member for supporting the both side surfaces in the front-rear direction of the laminated product bundle W descending from the product supply position A and preventing the collapse of the load in the front-rear direction.
As shown in FIG. 4, the elevator 310 is configured such that the pair of left and right mounting boards 311 cooperate to lower the stacked product bundle W, and a gap 311 a is provided between the pair of left and right mounting boards 311. It is formed.
The front side support plate 335 stands by at a position lower than the floor plate B1 at the sheet supply position B, enters the gap 311a of the placement board 311 that has been lowered (see FIG. 4C), and the placement board 311. The front side surface of the laminated product bundle W placed thereon is supported (see FIG. 3D).
Further, as shown in FIG. 3C, the laminated product bundle W is placed on the placing board 311 of the elevator 310 on the basis of the rear side surface. That is, the rear side surface of the laminated product bundle W is positioned in accordance with the rear end edge of the mounting board 311.
The rear side support plate 336 is on the lower side of the floor plate B1 at the sheet supply position B and stands by in the vicinity of the outside of the elevating orbit X of the rear edge of the placement board 311 and is placed on the placement board 311 that has been lowered. The rear side surface of the placed laminated product bundle W is supported.
While the laminated product bundle W is moving downward from the product supply position A, both front and rear side surfaces are supported by the front side surface support plate 335 and the rear side surface support plate 336 to prevent collapse of the load in the front and rear direction. Is done.

  As shown in FIG. 6B, the two rear side surface support plates 336 move in the left-right direction after the laminated product bundle W is arranged at the transfer start position D, thereby moving the laminated product bundle W. Open. Further, the front side support plate 335 is transferred by the transfer device 400 together with the laminated product bundle W.

  When the laminated product bundle W moves downward from the product supply position A, the sheet S is folded at the edge of the floor board B1 installed at the sheet supply position B and is folded on both side surfaces of the laminated product bundle W.

As shown in FIG. 5, the upper surface sheet folding mechanism 340 has a function of folding the sheet S on the upper surface of the laminated product bundle W that has been lowered to the upper surface folding position C. In the present embodiment, a pair of press plates 321 that compress the upper surface of the laminated product bundle W are also folded into the sheet S together. In FIG. 5, the front side support plate 335 and the rear side support plate 336 are omitted.
The upper sheet folding mechanism 340 includes a pair of folding rollers 341 and 342. The pair of folding rollers 341 and 342 stands by at the outer side position in the front-rear direction of the system at the upper surface folding position C (see FIG. 5A).

  Next, one folding roller 341 moves inwardly, and the sheet S is folded into the upper surface of the press plate 321 that presses the upper surface of the laminated product bundle W (see FIG. 5B). When the folding operation of the sheet S by the folding roller 341 is completed, the roller 341 moves backward, and the other folding roller 342 moves horizontally inward to fold the sheet S in the same manner. At this time, the sheet S is folded and superimposed on the upper surface of the sheet S that has been folded. Here, an adhesive tape T is attached to the edge of the sheet S to be folded, and the adhesive tape T is attached to the lower sheet S by the roller 342 (see FIG. 5C). Thereby, the sheet | seat S is wound and wrapped around the laminated product bundle W (refer FIG.5 (d)).

  Each folding roller 341, 342 employs a unidirectional rotating roller that is horizontally controlled inward and whose rotation is restricted in the process of folding the sheet S, and that rotates in the process of retracting after the folding operation. Thereby, when the sheet S is folded, a sliding contact resistance is generated between the sheet S, and the sheet S is folded while being pulled. Therefore, the stacked product bundle W having a non-uniform height is more firmly and stably collapsed. It is possible to pack it in a packing form that is difficult to do. On the other hand, when retreating, there is no possibility that the folded sheet S will be peeled off because there is no sliding contact resistance with the sheet S due to the rotation.

  After the sheet S is wound and wrapped around the laminated product bundle W at the upper folding position C, the pair of press plates 321 are horizontally driven outward in the left-right direction of the laminated product bundle W by a horizontal drive air cylinder 323. It is pulled out from the inside of the sheet S (see FIG. 6A). Further, the pair of side support plates 331 are also retracted to the outside in the left-right direction together with the press plate 321 and separated from the laminated product bundle W.

Thereafter, the elevator 310 further lowers the mounting board 311 from the upper surface folding position C. Below the top folding position C, a transfer start position D by a transfer device 400, which will be described later, is set, and the stacked product bundle W1 wrapped around and wrapped by the lowering operation of the mounting board 311 is arranged at the transfer start position D. (See FIG. 6B).
Then, the laminated product bundle W1 arranged at the transfer start position D is transferred to the work position of the sheet folding device 500 by the transfer device 400 (see FIG. 1).

FIG. 7 is a front view showing a specific configuration example of an elevator, a press mechanism, and a load collapse prevention mechanism.
The elevator 310 moves the mounting board 311 up and down by a driving force from a driving motor (not shown).
The press mechanism 320 has a support member 325 mounted with an air cylinder 323 for horizontal drive, and the support member 325 is connected to the tip of a drive rod of an air cylinder 322 fixed to the apparatus main body 301. The support member 325 moves in the same direction as the drive rod of the air cylinder 322 moves forward and backward in the vertical direction. A press plate 321 is attached to the tip of the drive rod of the air cylinder 323 for horizontal drive. Therefore, the press plate 321 moves in the same direction as the drive rod of the air cylinder 323 moves forward and backward in the left-right direction.

The side support plate 331 constituting the load collapse prevention mechanism is configured to move in the left-right direction by a stepping motor (not shown) mounted on the support member 325. The stepping motor is drive-controlled so that the side support plate 331 supports the side surface of the laminated product bundle W based on the dimension data of the laminated product bundle W inputted in advance.
In addition, the elevator 310, the press mechanism 320, and the side support plate 331 (load collapse prevention mechanism) described above are provided in a pair symmetrically.

The product supply position A, the sheet supply position B, and the transfer start position D described above are set in advance, and the elevator 310 arranges the upper surface of the mounting board 311 at each of these positions. The positioning control can be easily and accurately performed by detecting the mounting board 311 with sensors provided at the positions A, B, and D, for example.
On the other hand, the above-described upper surface folding position C is also set in advance, and the lower surface position of the press plate 321 when the drive rod of the air cylinder 322 protrudes to the descending end is matched with this upper surface folding position C.

After the placement board 311 of the elevator 310 is raised and the sheet placed at the sheet supply position B (not shown in FIG. 7) is lifted and placed at the product supply position A, the stacked product bundle is placed at the product supply position A. W is supplied.
Next, the air cylinder 323 is actuated to protrude the press plate 321 to a position above the product supply position A. Subsequently, the air cylinder 322 is actuated so that the drive rod protrudes downward, and the press plate 321 presses the upper surface of the laminated product bundle W accordingly. Here, a stepping motor (not shown) is actuated to horizontally move the side support plate 331 inward, and the left and right side surfaces of the laminated product bundle W are supported by the side support plate 331.
Thereafter, the elevator 310 lowers the placement board 311. With this operation, the air cylinder 322 continues to be driven, and the pressing state of the stacked product bundle W by the press plate 321 is maintained. Further, the side support plate 331 also moves downward together with the press plate 321 by the driving force of the air cylinder 322, and continues to hold both side surfaces of the laminated product bundle W.

When the drive rod of the air cylinder 322 reaches the lower end, the lowering operation by the elevator 310 is stopped. This stop control can be easily executed by, for example, detecting that the drive rod of the air cylinder 322 has reached the descending end with a sensor and feeding back to the drive source of the elevator 310.
The stop position C ′ of the mounting board 311 at this time arbitrarily varies depending on the thickness of the laminated product bundle W, but the upper surface height position of the laminated product bundle W is always arranged at the upper surface folding position C.

After the body wrapping is completed at the top folding position C, the air cylinder 323 for horizontal driving is driven to move the press plate 321 outward in the left-right direction as described above, and these members are pulled out from the inside of the sheet S. Further, a stepping motor (not shown) is operated to move the side support plate 331 outward in the left-right direction so as to be separated from both side surfaces of the laminated product bundle W.
Thereafter, the elevator 310 further lowers the placement board 311 to the transfer start position D.

In addition, this invention is not limited to embodiment mentioned above, Of course, various deformation | transformation implementation and application implementation are possible in the range which does not deviate from a summary.
For example, the pressing mechanism for lowering the press plate is not limited to the air cylinder, and various known actuators and drive mechanisms can be applied.
In the above-described embodiment, the body wrapping is formed by folding sheets on the front and back side surfaces of the laminated product bundle. However, the present invention is not limited thereto, and the body winding packaging can be formed by folding sheets on the left and right side surfaces of the laminated product bundle. . In that case, the press plate 321 and the side support plate 331 are configured to move horizontally in the front-rear direction and to appear above and below the stacked product bundle.

100: Laminated product bundle supply device,
200: Sheet tailoring device, 210: Sheet conveying mechanism, 220: Adhesive tape applying mechanism, 221: Adhesive tape feeding mechanism, 230: Sheet cutter,
300: body winding packaging apparatus, 301: apparatus main body, 310: elevator, 311: placement board, 320: press mechanism, 321: press plate, 322: air cylinder, 323: air cylinder, 325: support member, 330: load collapse Prevention mechanism, 331: side support plate, 335: front side support plate, 336: rear side support plate, 340: top sheet folding mechanism, 341, 342: folding roller,
400: transfer device, 500: sheet folding device,
A: Product supply position, A1: Floor board, B: Sheet supply position, B1: Floor board, C: Upper surface folding position, D: Transfer start position, W: Stacked product bundle, S: Sheet, S1: Ear part, T: Adhesive tape

Claims (5)

A body-wrapping device for body-wrapping a laminated product bundle obtained by laminating a plurality of products in a longitudinal direction with a sheet as a packaging material,
Lifting means for moving up and down these sheets and the laminated product bundle in a state where the laminated product bundle is placed on the upper surface of the sheet, pressing means for pressing and compressing the upper surface of the laminated product bundle from above, and the laminated product bundle An upper surface sheet folding means for folding the sheet on the upper surface,
And a product supply position where the laminated product bundle is supplied downward on the moving path of the elevating means, an upper surface folding position where the sheet is folded on the upper surface of the laminated product bundle, and a laminated product which is wrapped around the body. The transfer start position for transferring the bundle is set in sequence,
The upper surface folding position is defined as a position where the upper surface of the laminated product bundle stops,
The laminated product bundle supplied to the product supply position is pressed by the pressing means, and the sheet and the laminated product bundle are lowered to the upper surface folding position by the elevating means while maintaining the pressed state, and lowered. In the process, the sheet is folded on the front and rear or left and right side surfaces of the laminated product bundle, and the upper sheet folding means folds the sheet on the upper surface of the laminated product bundle at the upper folding position, thereby completing the body-wrapping packaging. A body-wrapping apparatus characterized in that the laminated product bundle is lowered to the transfer start position by the elevating means. The elevating means includes a placement board on which the sheet and the laminated product bundle are placed in a state where the laminated product bundle is placed on the upper surface of the sheet, and a vertical drive mechanism for raising and lowering the placement board. And
The pressing means presses the upper surface of the stacked product bundle placed on the mounting plate from above, applies a downward pressing force to the pressing plate, and lowers the mounting plate. And a pressing mechanism for lowering the press plate,
The body wrapping apparatus according to claim 1, wherein a descending end of the press plate by the pressing mechanism is set at the upper surface folding position.   The press plate is in the upper surface folding position until the upper surface sheet folding means folds the sheet on the upper surface of the laminated product bundle and completes the body-wrapped packaging, so that the pressed plate is pressed against the laminated product bundle. After holding the body-wrapped packaging, the pressed state is released, and the left and right or the front and rear direction are moved to exit from between the upper surface of the laminated product bundle and the sheet folded on the upper surface. The body-wrapping apparatus according to claim 2.   4. The body wrapping apparatus according to claim 3, further comprising load collapse prevention means for supporting left and right or front and back side surfaces of the stacked product bundle descending from the product supply position to the upper surface folding position.   The load collapse prevention means moves from both sides of the laminated product bundle supplied to the product supply position and comes into contact with the left and right or front and rear side surfaces of the laminated product bundle, and supplies the product together with the press plate. The body-wrapping apparatus according to claim 4, further comprising a pair of pressing support plates that descend from a position to the upper surface folding position.

Images