JPH1045103A - Packaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an epochal packaging device with which a shift conveyance of a packaging bag having a matter packaged therein from a terminal end of a conveying device to a discharging shift conveying device is excellent, conveying speed can be speeded up, and efficiency of bag making can be improved. SOLUTION: A shift conveying device 11 for further conveying a packaging bag 12 having a matter packaged therein 3 which is separated from a succeeding cylindrical film 1 is formed in a state separated from a conveying device 2 at a position where a vertical seal device 6 and a cutting device 7 are provided. The conveying device 2 is formed in a manner approachable and retractable from the shift conveying device 11. A forward/backward moving device is provided for moving the conveying device 2 to this side of the conveying direction for retraction when the vertical seal device 6 and the cutting device 7 are closed and moving the conveying device 2 to the shift conveying device 11 at the side of conveying direction when the vertical seal device 6 and the cutting device 7 are opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging apparatus for successively packaging objects to be packaged in a film while forming the film into a cylindrical shape.

[0002]

2. Description of the Related Art As a general horizontal pillow packaging apparatus as this type of packaging apparatus, an object to be packaged is supplied at predetermined intervals while a film conveyed by a conveying apparatus is formed into a cylindrical shape, and then the film is re-sealed. The folded stacking section is heat-sealed in a tubular shape by a horizontal sealing device, and then vertically heat-sealed between the objects to be packaged, and then the packaging device is transported by cutting the vertical heat-sealed portion of the film by a cutting device. ing.

At this time, when the size of the article to be packaged is relatively small, or when the thickness of the film is large and the rigidity is high, the packaging bag separated by the cutting device is carried out in a stable state by a transport device. However, there is a problem that a packaged product that is easily bulky swells when packaged with a film, and its appearance and packaging form deteriorate.

[0004] For this reason, as a means for neatly wrapping the contents to be packaged while improving the wrapping form, the wrapping of the bulky wrapped object is performed by folding the sides of both ends of the film inward. In some cases, a structure in which the packaging bag is heat-sealed after gusset shaping is employed.

[0005]

In this case, as proposed in, for example, Japanese Patent Publication No. 3-66207, the film is held by suction so that wrinkles and misalignments do not occur in the film during gusset shaping. Although a means for shaping the gusset is taken in a state in which the film is held, the suction device, which is a mechanism for holding the film, becomes large and the mechanism tends to be complicated. There is also a problem in terms of target, and there remains a problem that the entire packaging device becomes large and the cost increases.

[0006] On the other hand, in the conventional packaging apparatus, a transfer transport apparatus for further feeding out the separated packaging bags containing the articles to be packaged is provided in a state of being connected to the transport side of the transport apparatus, and generally the vertical sealing apparatus is provided. Since the transfer device is a device that opens and closes (moves) so as to divide the transport direction, the transfer device cannot simply be an extension of the transport device as it is, so that the transport route is divided. In order to do so, the vertical sealing device and the cutting device must be provided.

That is, to explain in a simple example, the cutting device or the like that operates to open and close in the vertical direction is disposed at the transfer end of the transfer device, and a predetermined distance from the end of the transfer device is provided through the cut device. Since the transfer device must be provided at a distance, the transfer of the packaging bag cannot be performed smoothly between the separated transfer device and the transfer device, or the transfer device and the transfer device can be surely transferred. The device and the device are arranged so that they are superimposed with a step on the top and bottom, so that the cut and separated packaging bags fall and transfer, or a separate transfer assist mechanism is added to improve the transfer. There was also a problem that had to be done.

In particular, when the packaged object is heavy or the bottom portion is easily caught, the transfer cannot be performed smoothly, and the conveyance and discharge are hindered.

An object of the present invention is to find out that the conventional packaging apparatus has such a problem, and to provide an innovative packaging apparatus that can surely solve the problem by simple means.

[0010]

The gist of the present invention will be described with reference to the accompanying drawings.

A feeding section 4 into which a packaged object 3 can be fed at predetermined intervals into the film 1 in the middle of a transporting device 2 for continuously transporting the film 1 folded in two with its upper part opened. A horizontal sealing device 5 for closing the upper opening of the film 1 into which the packaged object 3 is loaded and forming the film 1 into a cylindrical shape. Sealing device 6 for closing the space between the objects 3 to be packaged of the film-like film 1, and cutting the middle part of the sealing portion of the film 1 closed by the vertical sealing device 6 to form a subsequent cylinder In a packaging apparatus provided with a cutting device 7 for separating the tubular film 1 and the packaging bag 12 containing the package 3 on the transport side, the packaging bag 12 containing the package 3 separated from the subsequent tubular film 1 is unloaded. The transfer transfer device 11 to be transferred is Le device 6 and the cutting device 7
The transfer device 2 is disposed on the transfer direction side of the transfer device 2 with the position provided as a boundary, and the transfer device 2 is configured to be able to approach and retreat with respect to the transfer transfer device 11, and the vertical seal device 6 or the When the cutting device 7 is closed, the transport device 2 is retracted to the front side in the transport direction, and when the vertical sealing device 6 and the cutting device 7 are opened, the transport device 2 approaches the transfer transport device 11 on the transport direction side. The present invention relates to a packaging device provided with an advancing / retreating moving device 13 for moving.

At the end of the transfer of the transfer device 2, there is provided a terminal transfer portion 2 B separated from the transfer portion 2 A at the front, and the terminal transfer portion 2 B at the end portion of the transfer device 2 is connected to the transfer transfer device 11. When the vertical sealing device 6 or the cutting device 7 is closed by the retreating device 13, the transport device 2 is retracted to the front side in the transport direction. 2. The packaging device according to claim 1, wherein when the vertical sealing device 6 and the cutting device 7 are opened, the cutting device 7 is moved closer to the transfer device 11 in the transport direction.

The packaging apparatus according to claim 2, wherein at least the end transport section 2B of the transport apparatus 2 and the transfer transport apparatus 11 are a belt transport apparatus of a bearing transport type.

Further, a gusset device 9 is provided which forms a pair from side portions before and after in the transport direction of the vertical sealing device 6 and the cutting device 7 and folds the side portion of the tubular film 1 inward. The packaging device according to any one of claims 1 to 3.

Further, the cylindrical film 1 is disposed before and after the longitudinal seal device 6 and the cutting device 7 in the transport direction.
5. The packaging device according to claim 1, further comprising a film pressing device (8, 10) for pressing the film.

Further, the film pressing device 10 provided on the transport side of the vertical sealing device 6 and the cutting device 7 with respect to the transport direction is provided with a film pressing mechanism for pressing the cylindrical film 1 from the left and right directions and from above. A packaging device according to claim 5, wherein the packaging device is configured.

The film pressing devices 10 provided on the transport side of the vertical sealing device 6 and the cutting device 7 with respect to the transport direction are provided with soft pressure members 10D, respectively. The packaging device according to claim 6, wherein the packaging device is configured as a degassing mechanism V that presses the film 1 to degas.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

The packaged object 3 separated by the cutting device 7
The transfer bag 11 containing the transfer bag 11
When the vertical sealing device 6 and the cutting device 7 are closed, the transfer device 2 moves away from the transfer device 11 in the transfer direction so as not to hinder the operation. When the vertical sealing device 6 and the cutting device 7 open and receive and transport the separated packaging bag 12, the transport device 2 moves closer to the transfer device 11.

Accordingly, even if the transfer device 2 and the transfer transfer device 11 are arranged in a separated state in order to dispose the vertical sealing device 6 and the cutting device 7 that perform opening and closing operations, the transfer transfer device 11 can be used.
Relative movement of the conveying device 2 with respect to the vertical seal device 6 and the cutting device 7, there is no hindrance to the operation, and the transfer distance for discharge can be satisfactorily achieved by narrowing the separation distance.

In addition, the transfer device 2 moves closer to the transfer transfer device 11 to ensure transfer transfer, and the transfer device 2 approaching and moving is moved in the transfer direction. Does not cause the transfer of the packaging bag 12 containing the article to be packaged 3 to be transferred, and, for example, after the vertical sealing device 6 and the cutting device 7 are operated, the transport device 2
Even if the approaching movement of and the transport drive of the transport device 2 and the transfer transport device 11 are performed somewhat at the same time, that is, even if the transport device 2 approaches and moves while transporting, the transfer is less likely to be supported, Therefore, the transport speed can be increased, and the efficiency of bag making is improved.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

A transport device for transporting the V-shaped film 1 to a transport guide section 14 for transporting the heat-sealable strip-shaped film 1 continuously pulled out from the supply section in a folded state with the upper part opened. 2 and
An opening guide section for guiding the V-shaped film while holding the upper left and right edges of the V-shaped film at a predetermined length is provided as the loading section 4 in the transport guide section 14. For example, a to-be-packaged material 3 such as a mushroom is put in,
An ultrasonic welding type horizontal sealing device 5 is provided in which the upper opening of the film 1 containing the packaged object 3 is closed by polymerization sealing to form a cylindrical film 1, and the cylindrical film conveyed intermittently by the conveying device 2. 1 is a vertical sealing device 6 that closes the overlapped seal so as to divide a portion between the packaged objects 3 and 3; A cutting device 7 for separating the packaging bag 12 containing the packaged object 3 is provided at the transport end of the transporting device 2, and the vertical sealing device 6 and the cutting device 7 are operated to remove the packaging bag 12 containing the packaged product 3. It is configured to carry and discharge.

That is, the transporting device 2 intermittently transports the tubular film 1 containing the article 3 to be packaged, and the vertical sealing device 6 separates the package 3 at the rear and the package 3 at the front into a partitioned state. The packaging bag 12 containing the packaged object 3 is discharged to the transport side, and the leading end of the subsequent tubular film 1 is closed.

Then, the package 3 is intermittently conveyed again, and by repeating this operation, the packages 3 are automatically packaged one by one by a predetermined amount.

In addition, in order to maintain a good packaging form of the bulky article 3 which is likely to be bulky, before closing the vertical seal, the gusset claw 9A is attached to the cylindrical film slightly before the vertical seal device 6 and the cutting device 7. A gusset device 9 is provided which pushes in and retracts from both side surfaces of the cylindrical film 1 and folds (provides a gusset) a side portion of the tubular film 1 inward.

Further, a film pressing device 8 is provided slightly forward of the vertical sealing device 6 and the cutting device 7 to press the cylindrical film 1 from the outside by projecting toward the cylindrical film 1. ing.

In the film holding device 8, a pressing plate 8A is provided at the tip of an advancing / retracting rod 8C of a cylinder device 8B, and the advancing / retracting rod 8C protrudes toward the cylindrical film 1 so that the pressing plate 8A presses the outer surface of the film 1. The film 1 is pressed and shaped.

The film pressing device 8 is provided on both the left and right sides and the upper part with respect to the transport direction of the film 1 so as to press the film 1 from the left and right directions and the vertical direction.

That is, the cylindrical film 1 conveyed intermittently is
Before performing vertical sealing, cutting, or gusset processing, the pressing plate 8A protrudes inward from both left and right directions, the pressing plate 8A also protrudes downward from above, and the left and right pressing plates 8A in the left and right directions. In this case, the film 1 is pressed down by the upper pressing plate 8A and the lower supporting portion, and the present embodiment is shaped into a square.

A gusset device 9 is provided on the left and right sides of the vertical sealing device 6 and the cutting device 7 slightly on the transport side of the portion pressed and shaped by the film pressing device 8 and slightly forward of the vertical sealing device 6 and the cutting device 7. This gusset device 9
After the gusset is applied, the vertical sealing device 6 and the cutting device 7 perform closing and cutting.

Therefore, since the above-described processing is performed in a state in which the cylindrical film 1 is shaped by the pressing by the projection in the left-right direction and the vertical direction, each processing can be performed satisfactorily. The packaged object 3 is also positioned and held at the center by the pressing and shaping,
In addition, the cylindrical film 1 itself is also positioned, so that the above-described respective processes are improved.

A second film pressing device 10 for pressing the cylindrical film 1 from the upper side and the left and right directions is provided on the transport side of the vertical sealing device 6 and the cutting device 7.
Is provided.

In the second film pressing device 10, a pressing plate 10A is provided at the tip of an advancing and retracting rod 10C of a cylinder device 10B, and a soft pressing member 10 such as a sponge is provided on the pressing plate 10A.
D is a deaeration mechanism V provided with an advancing / retracting rod 10C protruding toward the cylindrical film 1 so that a soft pressure member 10D
Presses the outer surface of the film 1 containing the packaged object 3 from three sides in the same manner as the first film pressing device 8 to expel air existing in the packaging bag 12,
For vertical sealing and cutting.

In this way, in the case of performing the vertical sealing step and the cutting step of the tubular film 1 and further forming the gusset, the vertical sealing apparatus 6 and the second film pressing apparatus 10 are used. In addition, the objects to be packaged 3 located before and after the cutting device 7 and the gusset device 9 are pressed together with the film 1 and positioned and held, so that each process can be performed well.

Then, the second film holding device 10
Thus, the packaging bag 12 containing the article 3 to be evacuated is cut off and discharged.

In this embodiment, the present invention is applied to such a packaging apparatus, and an embodiment of a main part of the present invention will be further described.

The transfer conveying device 11 for receiving and supporting the packaging bag 12 containing the article to be packaged 3 separated from the subsequent tubular film 1 and further transporting the received and supported packaging bag 12 is connected to the vertical sealing device 6 and The transfer device 2 is configured so as to be separated from the end of the transfer device 2 with respect to the position where the cutting device 7 is provided. When the operation of the vertical sealing device 6 or the cutting device 7 is closed, the transport device 2 is retracted to the front side in the transport direction, and when the vertical sealing device 6 and the cutting device 7 are opened, the transport device 2 is transported. An advancing / retreating device 13 is provided for moving toward and near the transfer device 11 on the direction side.

That is, when the vertical sealing device 6 or the cutting device 7 operates, the transfer device 2 retreats relatively to the transfer direction with respect to the transfer transfer device 11, and the vertical seal device 6 and the cutting device are cut off. At the time of opening when the device 7 does not operate and does not interfere, the transport device 2 relatively moves toward the transfer device 11, and the packaging bag 12 containing the article 3 to be transported from the transport device 2 is transported. doing.

More specifically, at the transport end of the transport device 2, a support transport type terminal transport portion 2B is provided separately from the film hanging transport type transport portion 2A at the front, and the transport device 2 is transported at the terminal end. The section 2B is configured to be movable toward and away from the transfer apparatus 11, and the terminal apparatus 2B is moved by the evacuation apparatus 13 when the vertical sealing device 6 or the cutting device 7 is closed. The vertical sealing device 6 is retracted (returned) to the front side in the transport direction.
When the cutting device 7 is opened, the cutting device 7 is moved closer to the transfer device 11 on the transport direction side.

In this embodiment, a pair of unloading rollers 29 for suspending and transporting the upper part of the two-folded film 1 and a U-shape for feeding the article 3 in a mounted state along the feeding direction of the tubular film 1 are described. A transporting section 2A is constituted by the receiving plate 30 of this embodiment, and is connected to the transporting section 2A so as to be connected to the terminal transporting section 2B
Is arranged.

Further, the end transfer section 2B of the transfer apparatus 2 and the transfer transfer apparatus 11 are a belt transfer apparatus of a support transfer type.

Accordingly, the end portion of the conveying device 2 is a separated and independent belt conveyor device 2B, and at the end of the belt conveyor device 2B, a belt conveyor device 11 for transferring to a separated state is arranged in a continuous state. The vertical sealing device 6 and the cutting device 7 that open and close vertically are disposed between the belt conveyor devices 2B and 11, and the transfer conveyor device 11 is fixed, and the transfer conveyor device 11 moves with respect to the transfer conveyor device 11. Thus, the belt conveyor device 2B at the end portion of the transport device 2 is configured to approach / retreat.

The forward / backward moving device 13 of this embodiment is provided with a cylinder device 13A for driving the belt conveyor device 2B forward / backward.
The operation of the cylinder device 13A causes the belt conveyor device 2B to move forward and backward along a guide rail (not shown).

Therefore, even if the transfer device 2 and the transfer transfer device 11 are arranged apart from each other in order to dispose the vertical sealing device 6 and the cutting device 7 that perform opening and closing operations, the transfer transfer device 11 can be used.
Relative movement of the conveying device 2 with respect to the vertical seal device 6 and the cutting device 7, there is no hindrance to the operation, and the transfer distance for discharge can be satisfactorily achieved by narrowing the separation distance.

In addition, the transfer device 2 moves closer to the transfer transfer device 11 to ensure transfer transfer. The transfer device 2 approaching and moving is moved in the transfer direction. Does not cause the transfer of the packaging bag 12 containing the article to be packaged 3 to be transferred, and, for example, after the vertical sealing device 6 and the cutting device 7 are operated, the transport device 2
Even if the approaching movement of and the transport drive of the transport device 2 and the transfer transport device 11 are performed somewhat at the same time, that is, even if the transport device 2 approaches and moves while transporting, the transfer is less likely to be supported, Therefore, the conveying speed can be increased, and the bag making efficiency is improved.

In the above-described embodiment, the transport section 2A on the front side of the transport apparatus 2 is configured to be suspended and transported by the unloading roller 29 and the receiving plate 30, but the transport section 2A is also a terminal transport section 2B. In the same manner as described above, a belt conveyor device may be used, and may be provided in a state of being connected to the terminal conveyance section 2B.

[0048]

Since the present invention is constructed as described above, the transfer device is relatively closer to the transfer device in the transfer direction so as not to hinder the operation of the vertical sealing device and the cutting device. When receiving and transporting the separated packaging bag after the operation is completed, the transporting device moves closer to the transporting device. Even if the transfer device and the transfer device are arranged in a separated state, the operation of the vertical sealing device and the cutting device is not affected by the relative movement of the transfer device with respect to the transfer device. This is a very practical packaging device that can perform transfer and transfer for discharging well. In other words, an epoch-making packaging device can be provided which allows the transfer of the packaging bag from the transporting device to be discharged from the transporting device with certainty and can be performed smoothly and smoothly.

Moreover, the transfer device moves closer to the transfer transfer device to ensure transfer transfer. Since the transfer device moves closer to the transfer direction, the transfer device moves in the transfer direction. The transfer of the packaging bag containing the package does not cause a bearing, and, for example, after the vertical sealing device or the cutting device is operated, the approaching movement of the transfer device and the transfer drive of the transfer device and the transfer transfer device may be slightly increased. Even if the transfer is performed at the same time, that is, even if the transfer device approaches and moves while the transfer is being performed, it is difficult for the transfer to be transferred, so that the transfer speed can be increased, and the packaging device can be improved in bag making efficiency.

According to the second and third aspects of the present invention, the forward and backward moving configuration of the transfer device with respect to the transfer transfer device is a packaging device with excellent practicality that can be easily realized with a simple configuration. .

According to the fourth aspect of the present invention, the gusset is formed and the package can be neatly packaged. According to the fifth aspect of the present invention, the wrapping form is properly adjusted.

Further, in the invention according to the sixth aspect, the packaging form is further improved by pressing down from three sides, and in the invention according to the seventh aspect, an epoch-making packaging in which a good degassing process is also performed. Device.

[Brief description of the drawings]

FIG. 1 is a schematic configuration side view of the present embodiment.

FIG. 2 is a schematic configuration plan view of the present embodiment.

FIG. 3 is an enlarged explanatory perspective view of a main part of the embodiment.

FIG. 4 is an enlarged explanatory side view of a main part immediately before the closing of the seal and the start of the cutting process according to the embodiment.

FIG. 5 is an enlarged explanatory side view of a main part at the time of vertical seal closing and cutting processing of the present embodiment.

FIG. 6 is an enlarged explanatory side view of a main part at the start of transfer transfer according to the present embodiment.

FIG. 7 is an enlarged explanatory rear view of a main part of the embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 film 2 transport device 2A transport unit 2B terminal transport unit 3 packaged object 4 loading unit 5 horizontal seal device 6 vertical seal device 7 cutting device 8 film press device 9 gusset device 10 film press device 10D soft pressure member 11 transfer transfer device 12 Packaging bag 13 Advancing / retreating device V Degassing mechanism

Claims (7)

[Claims] 1. A feeding section which can feed a packaged object into a film at a predetermined interval in the middle of a transporting device which continuously transports a film folded in a folded state with an upper portion opened. A horizontal sealing device that closes an upper opening of the film into which the package is loaded and forms the film into a cylindrical shape; a transporting terminal of the transporting device; A vertical sealing device for closing the space between the package and the package, and a middle portion of the sealed portion of the film closed by the vertical sealing device is cut to separate the subsequent tubular film from the packaging bag containing the package on the transport side. In a packaging device provided with a cutting device, a transfer conveyance device that carries out and conveys a packaging bag containing an object to be package separated from the subsequent tubular film, with the vertical sealing device and the position where the cutting device is provided as a boundary. The transfer device is disposed on the delivery direction side of the transfer device, and the transfer device is configured so as to be able to approach and retreat with respect to the transfer transfer device. When the operation of the vertical sealing device or the cutting device is closed, the transfer device is transferred. A packaging device, comprising: a retreating device that retreats toward a front side in a direction and moves the transport device closer to the transfer transport device on the transport direction side when the vertical sealing device and the cutting device are opened. 2. A transfer device according to claim 1, wherein said transfer device is provided with a terminal transfer unit at a transfer end of said transfer device and separated from said transfer unit. When the operation of the vertical sealing device or the cutting device is closed by the retreating device, the terminal conveying device retreats the conveying device to the front side in the conveying direction, and conveys when the vertical sealing device and the cutting device are opened. 2. The packaging device according to claim 1, wherein the packaging device is configured to be moved closer to the transfer device on the direction side. 3. The packaging device according to claim 2, wherein at least the terminal transport section and the transfer transport device of the transport device are a belt transport device of a bearing transport type. 4. A gusset device which forms a pair from a side portion before and after in a transport direction of the vertical sealing device and the cutting device, and gusset device for folding a side portion of the tubular film inward. The packaging device according to any one of claims 1 to 3. 5. The apparatus according to claim 1, further comprising a film pressing device for pressing the cylindrical film before and after the vertical sealing device and the cutting device in the transport direction. Packaging equipment. 6. The film pressing device provided on the transport side of the vertical sealing device and the cutting device with respect to the transport direction of the cutting device is configured to be a film pressing mechanism for pressing the cylindrical film from the left and right directions and the upper direction. The packaging device according to claim 5, characterized in that: 7. The film holding device provided on the transport side of the vertical sealing device and the cutting device with respect to the transport direction is provided with a soft pressure member, and the soft pressure member presses the tubular film to remove it. The packaging device according to claim 6, wherein the packaging device is configured as a degassing mechanism.