JP2016175656A - Folding habit fixing device for end seal part of pillow packaging - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for applying a folding habit to an end seal part while limiting a lateral (horizontal) line length when a folding habit is applied and fixed to the end seal part (ear part) of pillow packaging.SOLUTION: A device for fixing a folding habit in the end seal part of a pillow package includes (1) a conveyance mechanism for continuously conveying the pillow package of lateral pillow packaging in the roughly horizontal state of end seal parts at both ends, (2) a transfer mechanism for bending the end seal parts of both ends of the pillow package upward and transferring the pillow package downward while maintaining the bent state, (3) a heating mechanism for pressing and heating the end seal parts of both ends bent upward for the predetermined pillow package transferred downward, and (4) a take-out mechanism for sequentially taking out the heated pillow packages.SELECTED DRAWING: Figure 1

Description

The present invention relates to an apparatus and a method for applying a signature to an end seal portion (ear portion) of a pillow package and fixing the same.

Pillow packaging is a packaging technology used in various industrial fields. Pillow packaging mainly includes horizontal pillow packaging and vertical pillow packaging. In horizontal pillow wrapping, an object (object) is transported in a substantially horizontal direction and covered from the top of the object while including a strip-shaped wrapping sheet, and the wrapping sheet is center-sealed (back seal) in the same direction as the transport direction. ) To make a cylindrical body.
Then, for each object, the packaging sheet is sealed up and down (end seal) in the direction perpendicular to the conveying direction to seal the object, and the pillow package of individual packaging is cut by cutting the vicinity of the center of the end seal part. Finalize.
In each pillow package, even after the end seal portion is cut, a part of the seal portion of the end seal portion remains in each pillow package. The end seal portion is also referred to as an ear portion, but the remaining end seal portion is normally in a state of protruding in a substantially horizontal state.
However, when a plurality of pillow packaging bodies are boxed, the end seal portion often becomes an obstacle. Therefore, a method for bending the end seal part to the side part of the pillow package to make it flat and fixing this fold is necessary. As a technique for solving such a problem, for example, the following prior art is disclosed.

JP 2007-106489 A

  The method described in Patent Document 1 is a method of attaching a crease to the end seal portion upward in horizontal pillow packaging, but there is a problem that a crease can be attached only to one side. In addition, there is a means of providing a plurality of the devices, but a problem that the length of the production line in the lateral direction (horizontal direction) itself is expected to be long. As other methods, there are various methods for attaching a crease to the end seal portion. However, the production line is often long, and the installation space of the production line is not efficiently used.

Then, the present inventors made it the subject to develop another method for making a crease in an end seal part, suppressing the line length of a horizontal direction (horizontal direction).

As a result of our diligent research, after heat-sealing the pillow package, the direction of transfer of the pillow package is changed from the lateral direction to the downward direction, and the end seal portions exposed at both ends are directed upward in the process of transferring downward. We found that the method of making a compromise is effective.
As a result, the pillow package in which the signature is fixed can be sequentially removed from the bottom to suppress the expansion of the lateral space.

That is, the first invention of the present application is
“1) A transport mechanism for continuously transporting a pillow package of a horizontal pillow package with end seal portions at both ends thereof being substantially horizontal,
2) a transfer mechanism for transferring the pillow package downward while the end seal portions at both ends of the pillow package are bent upward and maintaining the bent state;
3) a heating mechanism that presses and heats the end seal portions at both ends bent upward with respect to the predetermined pillow package that has been transferred downward;
4) a take-out mechanism for sequentially taking out the pillow package after the heating;
The apparatus which fixes the signature of the end seal part of the pillow packaging body provided with. "
It is.

Furthermore, as a method of transferring the above downward, a method in which the conveyed pillow package is stacked in order from the bottom and the lowermost pillow package is sequentially taken out to transfer it downward step by step. Has been found to be preferable.
That is, the second invention of the present application is
“1) A transport mechanism for continuously transporting a pillow package of a horizontal pillow package with end seal portions at both ends thereof being substantially horizontal,
2) A laminating mechanism in which the end seal portions at both ends of the pillow package are folded upward and the pillow package is sequentially stacked from the bottom while maintaining the bent state to form a laminate of packages. When,
3) a heating mechanism that presses and heats end seal portions at both ends bent upward with respect to a predetermined pillow package in the package laminate;
4) a take-out mechanism for sequentially taking out the lowermost pillow package of the package laminate;
The apparatus which fixes the signature of the end seal part of the pillow packaging body provided with. "
It is.

Furthermore, the inventor of the present application also contemplates a compromise fixing method including steps realized in the above apparatus.
That is, the third invention of the present application is
“1) A conveying step in which the pillow package of horizontal pillow packaging is continuously conveyed in a substantially horizontal state with end seal portions at both ends thereof;
2) A transfer step of transferring the pillow package downward while the end seal portions at both ends of the pillow package are bent upward and maintaining the bent state;
3) A heating step of pressing and heating the end seal portions at both ends bent upward with respect to the predetermined pillow package transferred downward;
4) A step of taking out the heated pillow package in sequence,
A method for fixing the end seal part of a pillow package body having a structure. ".

With the apparatus or method of the present invention, the exposed end seal portion in the horizontal pillow package can be fixed by making a fold in the upper direction while effectively utilizing the space in the horizontal direction.

It is a schematic diagram of the whole structure including the apparatus which fixes the signature of this invention. It is the perspective view which showed the conveyance state on the conveyor of a pillow package. It is a perspective view of a pillow package when a plurality of (5) pillow packages of the same type of packaging object are packaged. It is the perspective view which showed the position control frame in this embodiment. It is the schematic diagram which showed the other embodiment of the apparatus which fixes the signature of this invention.

DESCRIPTION OF SYMBOLS 10 Carry-in conveyor 20 Entrance conveyor 30 Assist plate 40 Pushing mechanism 42 Pressing member 44 Cylinder part 44
46 Power unit 50 Position regulating frame 60 Heat bar 70 Heat bar pressurizing actuator 75 Package drop prevention guide 80 Attached chain type transfer device 90 Extrusion conveyor 100 Exit conveyor 110 Discharge conveyor P Pillow package
ES End seal part
CS center seal

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic view of the entire configuration including a device for fixing a signature of an end seal portion of the present invention.
FIG. 2 is a perspective view showing a transport state of the pillow package on the conveyor.
FIG. 3 is a perspective view of a pillow package when a plurality (five) of the same type of packaging objects are packaged.
FIG. 4 is a perspective view showing a position restricting frame body in the present embodiment.
FIG. 5 is a schematic view showing another embodiment of the apparatus for fixing a signature according to the present invention.

FIG. 1 is a view showing the entire pillow package folding / fixing system including the end seal portion folding / fixing device of the present invention. The eclectic fixing system includes a conveyor 10 on which both ends of the pillow package P are cut after end sealing in the horizontal direction and the individually wrapped pillow package P having both ends of the seal portion is conveyed, Before and after the entrance conveyor 20 to which the pillow package body is transferred from the transport conveyor and the pillow package body P transported from the entrance conveyor 20 are transported in a substantially parallel state and are stacked on the stacked body stacked in the hanging direction. , An assist plate 30 is provided for guiding the ear portion to be bent upward.

Further, a push-in mechanism 40 that pushes each pillow package P in the vertical vertical direction from above the assist plate 30 is provided. The pushing mechanism is composed of a pressing member 42, a cylinder part 44, and a power part 46, and pushes the pillow package body downward from the upper part of the pillow package body.
Further, a position restricting frame 50 that restricts the position of the laminated body of the pillow package P so that the pillow package P sequentially moves downward from the assist plate 30, and the ear portion from both sides of the frame. A heat bar 60 that heats while pressing through the body, a heat bar pressure actuator 70 that controls movement of the heat bar 60 in the horizontal direction, and a pillow package that prevents the stacked pillow package P from falling in the vertical direction In order to carry the fall prevention guide 75 and the pillow package that has passed through the fall prevention guide 75 from the horizontal to the vertical upward, the chain portion 82 on which the pillow package P that has passed through the guide 75 is placed, the sprocket 84, and a predetermined Attachment-type transfer device 80 provided with a power unit, and pillow package P carried upward by attachment-type transfer device 80 as an outlet conveyor Extruded at a extrusion conveyor 90, and a discharge conveyor 110 in a state of placing the outlet conveyor 100 and the pillow packaging body moves horizontally longitudinally convey horizontally.

-Pillow package-
An object of the present invention is to fix the end seal part (ear part) ES of the pillow package P. Here, the pillow wrapping machine refers to a belt-like film that is continuously drawn and includes both ends in the width direction of the belt-like film in the traveling direction of the packaging object while containing the object to be packaged conveyed in the horizontal direction. And heat sealed (center seal) to form a tubular film.
On the other hand, since the objects are sequentially supplied into the pillow packaging machine at regular intervals, the objects are included in the cylindrical film at predetermined intervals. Furthermore, as a state in which the center is sealed and the object is included in the cylindrical film, the object is sealed laterally at a predetermined interval in the direction perpendicular to the moving direction of the object (conveying direction by the conveyor) at a predetermined interval before and after the conveying direction. (Lateral seal), and then cut so that the heat seal part remains at the front and rear at a predetermined position of the lateral seal part to form individual pillow packages.

As shown in FIG. 2, the end seal portion referred to in the present invention is a heat-sealed portion generated after cutting the seal portion formed by the above-described lateral seal performed after the center seal portion CS. That is, it is the end seal portion ES remaining after being cut after heat sealing.
In this way, the pillow package P in which the object is included in the film is formed. Here, the object to be packaged can have various shapes such as a spherical shape and a rectangular parallelepiped shape (box shape). It is also possible to use a type that is already packaged by a packaging material. However, in the present invention, since the end seal portion ES is later folded upward to fix the folds, the object accommodated therein is in a rectangular parallelepiped shape (box shape) so that the end seal portion ES can be easily folded and pressed. ) Is preferable.

Further, the object to be accommodated is not limited to a single item, and for example, it is possible to adopt a mode in which a plurality of objects of the same type are placed in parallel or stacked. In this case, it is preferable to have a substantially rectangular parallelepiped shape in a state where a plurality of objects are placed side by side or stacked. Specifically, it may be a case of a package of five meal packs in which five bag-type instant noodle packages as shown in FIG. 3 are placed in parallel.
Further, as described above, in the horizontal pillow packaging, heat sealing is performed before and after the object so that the object is included in the cylindrical film and is perpendicular to the transport direction, and then the heat sealing unit The end seal part ES (ear part) is formed by cutting near the center.
Usually, in the state after cutting, the end seal portion ES (ear portion) is in a state where it can be bent in either the upper or lower direction at the free end.

─Drops through the assist plate when transported vertically from the transport conveyor─
After pillow packaging and the heat seal part ES being cut at the center, each pillow package P is conveyed in the lateral direction and reaches the assist plate 30 shown in FIG. The assist plate 30 is a plate in which a pair of substantially triangular columnar bodies is arranged as a control, and the pillow package P falls downward between the pair of assist plates 30, and Laminated on top.
When falling into the assist plate 30, the front and rear end seal portions 210 of the pillow package P come into contact with the inclined surface of the assist plate 30 and are folded back upward, and fall into a position regulation frame described later. Are stacked in a state bent in the upper direction.

─ Pillow package push-in device ─
As described above, each pillow package P is stacked in the vertical vertical direction. The pushing mechanism 40 is provided on the upper part of the laminate of the pillow package P. The pushing mechanism 40 includes a pressing member 42, a cylinder portion 44, and a power portion 46, and employs a configuration in which the pressing member 42 moves up and down at regular intervals. Here, when a new pillow package P is stacked on the uppermost package P of the stacked pillow package P, the pressing member P presses the uppermost pillow package P from above, The entire laminate of the pillow package P is moved downward.
The entire laminated body of the pillow package P is weighted downward, but is supported by a fall prevention guide 70 described later. And when the lowermost pillow packaging body P is taken out, the form which a laminated body moves below sequentially is employ | adopted.

─ Position restriction frame ─
The stacked state of the pillow package P described above is realized by regulating the position of the stacked state of the pillow package P. The position is defined by the position restriction frame 50. The pillow package body P is sequentially stacked on the assist plate 30 to form a stacked body of the pillow package body P.
As shown in FIG. 4, the position regulation frame 50 regulates the laminated body of the pillow package P so that the laminated body is sequentially laminated with the ears folded upward, and becomes a metallic frame. Yes.

As will be described later, in order to press and press the heat bar 60 from the outside of the frame, a material such as a metal having good thermal conductivity is used for the frame. Thereby, even if it heats from the exterior of a frame, an ear folding part can fully be heated.
The frame has a hollow rectangular parallelepiped shape, and a pillow package dropping guide 70 described later is provided inside two of the four side surfaces facing each other.
In this embodiment, the type of heating from the outside of the frame is disclosed. However, the present invention is not limited to this. A mode in which the side surface of the package body P can be heated or the side surface of the pillow package body P can be directly heated by the heat bar 60 using the frame body as a columnar structure is also possible.

─Heat bar─
The position restricting frame 50 can realize a state in which a plurality of pillow packages P are stacked in a state where the ears are bent in the upper direction in the vertical direction. In this state, heat sealing is performed while applying pressure in a state where the heat bar 60 is approached from both sides of the laminated body of the pillow package P via the frame body and the ear portion is bent upward.
In addition, in FIG. 1, although the upper and lower whole of the ear | edge part of the laminated body of the pillow packaging body P which laminated | stacked the part to heat seal is shown, it is not limited to this. That is, the aspect which heats only the ear | edge part of only the pillow package P of a specific position may be sufficient.
For the packaging film of the pillow package P, various plastic films are usually used, but it is sufficient to use a material whose shape is fixed by heating, such as polyethylene or polyethylene terephthalate.
Note that the fixing of the ear portion by heating does not require the shape to be completely fixed, and it is sufficient if the end seal portion bent upward is fixed so as not to return in the horizontal direction.

─ Pillow package fall prevention guide ─
In the first embodiment of the present invention, a drop prevention guide 70 for the pillow package P is provided to prevent the stacked pillow package P from falling freely. As shown in FIG. 3, the guide 70 is mounted inside the frame as a belt-like plate, and has a shape that warps toward the inside as the elastic plate goes downward. doing. The entire stack of pillow packages is pressed downward by the pushing device 40 described above, and the vertical end of the lowermost pillow package P is opened downward by reaching the tip of the guide, and falls downward. . Moreover, the structure which the pillow package P of the one upper part stops in the state supported by the guide of the shape along the inside is employ | adopted.
In addition, in this embodiment, in order to prevent the laminated body of the pillow packaging body P from falling downward, it is disclosed that the guide 50 is supported. However, even if the guide is not provided, the laminated body is laminated. A plate-like body that supports the whole body is provided horizontally, and the lowermost packaging body of the laminate is configured to be taken out in the horizontal direction, so that the pillow package P after the folds are fixed is sequentially taken out. It can be set as an aspect.

─ Attachment type transfer device ─
In this embodiment, an attachment type transfer device 80 is provided for receiving the lowest pillow package P, transferring the package upward, and transferring it to another conveyor. The attachment type transfer device 80 is configured to include a conveyor belt 82, a plurality of sprockets 84, and a power unit. Further, the conveyor belt 82 is divided into a plurality of regions by a sorting plate 86. And the structure which receives the pillow package P exceeding the previous fall prevention guide 70 in a horizontal state one by one, and conveys the conveyor belt 82 upward is employ | adopted. It is carried while being pushed by the sorting board 86 so that the left corner of the paper is down to the top.
When reaching the upper part, the left end seal part 210 (ear part) on the left side of the side part is folded and conveyed to the discharge conveyor with the side part facing down. In addition, since this attachment type transfer apparatus 80 is only an example, it cannot be overemphasized that another aspect may be sufficient. For example, it may be a mode of transferring in the horizontal direction instead of transferring upward.

─Discharge conveyor─
The pillow package P transferred upward by the above-described attachment type transfer device 80 is subsequently transferred to the outlet conveyor 100 and sequentially conveyed. When the outlet conveyor 100 is transferred from the attachment-type transfer device 80 described above, the left side surface of the pillow package is placed vertically as a grounding portion to the conveyor belt of the outlet conveyor 100 as shown in FIG. So that it is transported and conveyed.
The transport method described above is merely an example, and it is needless to say that the transport method is not limited to the above-described vertical placement and may be placed horizontally.

─Second embodiment of the present invention─
FIG. 5 shows a second embodiment of the present invention. In the second embodiment of FIG. 5, the pillow package P that is transported in the lateral direction by the inlet conveyor 20 is placed on a stack of other pillow packages P, transferred downward, and the ear Unlike the assist plate 30 described in FIG. 1 when the portion is bent upward, an assist roller 35 in which a flexible material is configured as a blade portion is used. An ear portion enters between the blade portions of the assist roller 35 and is bent upward when the pillow package P is transferred downward.
Further, a plurality of heat bars 60 are provided, and by pressing and heating a plurality of times, the upward folding is surely fixed.
Further, a cooling fan 120 is provided to quickly fix the signature after heating with the heat bar 60. Cold air is jetted from the cooling fan 120 to take heat from the ears where the eclectic has been fixed, and to fix it early.

─Explanation of the movement of pillow packaging─
The operation process of the pillow package by the apparatus according to the present invention will be described again.
As shown in FIG. 1, each pillow package P that is pillow-wrapped is conveyed in the lateral direction in an end-sealed and cut state. The pillow package is transferred to another entrance conveyor 20 and then reaches the assist plate 30. In the lower part of the assist plate 30, there is already a laminated body of pillow packages P that are sequentially stacked in the position regulation frame 50, and the upper part of the uppermost pillow package P of the stacked body. A new pillow package P that has been transported is placed.

The assist plate 30 shown in FIG. 1 is transported while the end seal portions 210 (ear portions) at both ends of the pillow package P are maintained in the horizontal direction before entering the position control frame 50 having a substantially triangular prism shape. When the ears are put into the assist plate 30, the ears at both ends are bent upward, and are sequentially stacked in the position restricting frame 50.
Further, when entering the position restricting frame 50 from the assist plate 30, the ears at both ends are folded upward. With the ears folded, the ears are heated from both sides of the frame while being pressed by the heat bar 60 through the frame.
The pillow package P in which the ears at both ends are heated and creased is applied in the upper direction and the ears at both ends are heat-sealed, each time the pillow package P at the lowermost end is taken out, You can move it down one by one.

An attachment type transfer device 80 is provided for receiving the pillow package P taken out from the lowermost end, transferring the package upward, and transferring it to the next conveyor. The attachment type transfer device 80 includes a conveyor belt 82 and a plurality of sprockets 84, and the conveyor belt 82 is divided into a plurality of regions by a dividing plate 86. And the pillow packaging body P which exceeded the previous fall prevention guide 70 is received in a horizontal state one by one, and a conveyor moves upwards. It is carried while being pushed by the sorting board 86 so that the left corner of the paper is down to the top.
When reaching the upper part, the left ear part of the side part is folded and the side part is brought down to be conveyed to the exit conveyor 100. The pillow package P transferred to the outlet conveyor 100 is sequentially transferred to the discharge conveyor 110 and conveyed to move to another process.

Claims (3)

1) a transport mechanism for continuously transporting a pillow package of a horizontal pillow package in a substantially horizontal state with end seal portions at both ends thereof;
2) a transfer mechanism for transferring the pillow package downward while the end seal portions at both ends of the pillow package are bent upward and maintaining the bent state;
3) a heating mechanism that presses and heats the end seal portions at both ends bent upward with respect to the predetermined pillow package that has been transferred downward;
4) a take-out mechanism for sequentially taking out the pillow package after the heating;
The apparatus which fixes the signature of the end seal part of the pillow packaging body provided with.
1) a transport mechanism for continuously transporting a pillow package of a horizontal pillow package in a substantially horizontal state with end seal portions at both ends thereof;
2) A laminating mechanism in which the end seal portions at both ends of the pillow package are folded upward and the pillow package is sequentially stacked from the bottom while maintaining the bent state to form a laminate of packages. When,
3) a heating mechanism that presses and heats end seal portions at both ends bent upward with respect to a predetermined pillow package in the package laminate;
4) a take-out mechanism for sequentially taking out the lowermost pillow package of the package laminate;
The apparatus which fixes the signature of the end seal part of the pillow packaging body provided with.
1) A transport step for continuously transporting the pillow package body of the horizontal pillow package with the end seal portions at both ends thereof in a substantially horizontal state;
2) A transfer step of transferring the pillow package downward while the end seal portions at both ends of the pillow package are bent upward and maintaining the bent state;
3) A heating step of pressing and heating the end seal portions at both ends bent upward with respect to the predetermined pillow package transferred downward;
4) A step of taking out the heated pillow package in sequence,
A method for fixing the end seal part of a pillow package body having a structure.

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