JP3528173B2 - Packaging equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging device for film-wrapping an object to be packaged by transporting a film formed into a cylindrical bag and cutting the seal.

[0002]

2. Description of the Related Art Conventionally, as a device of this type, a roll holding portion for rotatably supporting a raw roll which is rotatably supported, and a guide for guiding a film pulled out from the raw roll. Part and the film pulled out through this guide part are folded back and guided in a two-fold state to form the film into a tubular bag, and the opening side of the tubular film is held open and the object to be packaged is put into the film. A former forming a supply unit for supplying, a conveying device for intermittently conveying the opening side of the film supplied with the object to be packaged by a pair of clamping rollers, and the opening of the tubular film. A center seal device that seals and closes the side, an end seal device that seals this tubular film in a direction orthogonal to the film transport direction, and a shape formed by these seal devices. Packaging apparatus comprising a cutting device for successively cutting the objects to be packaged enter the packaging bag is known to be. In this case, a carrying-out device that conveys the article to be packaged is provided on the film loading side and the film unloading side with the end seal device and the cutting device as a boundary, and the article to be packaged is provided together with the end seal device and the cutting device. There has been proposed an unpacking device for unpacking, which is provided with a box motion mechanism in which a unpacking device for carrying the contained film is reciprocally provided in the film carrying direction.

This box motion mechanism does not keep the film transport stopped while holding and heating the film by the end-sealing device to heat-seal it. The film of No. 1 was moved to the unloading side together with the end seal device and the cutting device, and when the heat sealing was completed and the cutting process was performed, the film was already conveyed during this period, and these devices returned again and continued to stop. It is a mechanism that controls movement so that the next end seal and cutting process can be performed immediately without waiting for a long time until the film conveyance is completed.

As a conventional box motion mechanism of this type, for example, as shown in Japanese Patent Publication No. 8-230836, there is one in which the length of the carry-in side conveyor device expands and contracts as the box motion moves. However, the structure in which the belt winding roller of the conveyor device is moved to change the length of the conveyor device has a complicated structure, resulting in poor mass productivity and high cost, and also has a short belt life and poor practicality. It was

The present invention solves such a problem, and provides a packaging device which has a simple structure, can be structurally simplified by a box motion, and is excellent in durability. It is an object.

[0006]

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

A roll holding part 21 for rotatably supporting the original roll 1A, a guide part 10 for guiding the film 1 drawn out from the original roll 1A, and a film 1 drawn out through the guide part 10 are provided. The tubular film 1 is folded back in two folds and formed into a tubular bag.
The former 12 which holds the opening side of the film 1 and forms the supply part 11 for supplying the object to be packaged 3 into the film 1, and the opening side of the film 1 to which the object to be packaged 3 is supplied from the supply part 11. A conveying device 4 that holds the pair of holding rollers 4A and intermittently conveys it, a center seal device 2 that seals and closes the opening side of the tubular film 1, and the tubular film 1
In a packaging device provided with an end seal device 6 for sealing the sheet in a direction orthogonal to the film transport direction, and a cutting device 7 for sequentially cutting the packaging bag 5 containing the article to be packaged 3 formed by these sealing devices 2 and 6. At the film carrying-in side with the end seal device 6 and the cutting device 7 as a boundary, a carrying-in side conveyor device 19 for supplying the film 1 containing the article to be packaged 3 is arranged, and at the film carrying-out side, A carry-out side conveyor device 20 for supplying the film 1 containing the package 3 is arranged, and the end-sealing device 6 and the cutting device 7 together with the carry-in side conveyor device 19 and the carry-out side conveyor device 20 in the film conveying direction. The box motion mechanism 13 of the carry-in side conveyor device 19 that supports the film 1 is provided with a box motion mechanism 13 that is reciprocally movable.
This carry-in side conveyor device 19 which is widened by movement by
Having a rotary bearing in the separation space S on the carry-in end side of the
A plurality of 14 are installed side by side, and the installation intervals of the support members 14 are widened according to the size of the separated space S, and the packaged object 3
The present invention relates to a wrapping device characterized in that the support 14 is provided so as to be movable in the film transport direction so that the distance is not longer than the length.

Further, among the plurality of supporting bodies 14 arranged in parallel in the separating space S on the carrying-in end side of the carrying-in side conveyor device 19, the separating space is accompanied by the movement of the carrying-in conveyor device 19 to the carrying-out side. When S expands, this carry-in side conveyor device
With the movement of 19, the support 14 on the most unloading side moves to the unloading side in an interlocking manner, and when the fulcrum 14 on the most unloading side moves a predetermined distance shorter than the length of the object 3 to be packaged, 14 is configured to move in conjunction with the carry-out side, and conversely, when the separation space S narrows as the carry-in side conveyor device 19 returns to the carry-in side, the carry-in side conveyor device 19 The support 14 which has been moved to the unloading side in association with the return movement is configured to sequentially return and move in association with the supporter according to the width of the separation space S caused by the movement of the carry-in side conveyor device 19.
The erection interval of 14 is automatically widened so that the film 1 is always supported by the support member 14 arranged at an interval shorter than the length of the object to be packaged 3. Related to the packaging device.

Further, the most carrying-in side supporting body 14 is arranged at a position close to the holding roller 4A of the conveying device 4 or the center seal device 2, and the supporting body 14 is juxtaposed to the carrying-out side with respect to the supporting body 14. 3. A plurality of bearings 14 are erected as described above, and the bearings 14 are configured to be horizontally reciprocally movable along the guide portion 15 in the film transport direction.
The present invention relates to the packaging device.

Further, the carry-out side conveyor device 20 is provided so that the carry-out side conveyor device 20 can be relatively moved toward and away from the carry-in side conveyor device 19, and the box motion mechanism 13 allows the carry-in side conveyor device 19 and the carry-out side conveyor device 20. When returning to the carry-in side and moving, the carry-in side conveyor device 19 is arranged so as to narrow the interval between the carry-in side conveyor device 19 and the carry-out side conveyor device 20 which are separated due to the operation of the end seal device 6 and the cutting device 7. The packaging apparatus according to any one of claims 1 to 3, characterized in that the carry-out side conveyor device 20 is configured to move closer to each other.

Further, the carry-in side conveyor device 19 includes a pair of rollers 19A and an endless belt spanned by the rollers 19A.
19B, and the carry-out side conveyor device 20 is composed of a pair of rollers 20A and an endless belt 20B spanned by the rollers 20A. Related to the packaging device.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention (how to carry out the invention) will be briefly described with reference to the drawings and showing its function and effect.

By the operation of the box motion mechanism 13, the carry-in side conveyor device 19 moves to the carry-out side together with the other end seal devices 6, cutting device 7, and carry-out side conveyor device 20, so that the carry-in end side of the carry-in side conveyor device 19 When the separation space S of is expanded, a plurality of the support bodies 14 installed in parallel in the separation space S move in conjunction with this, and the installation interval of the support bodies 14 correspondingly expands and narrows automatically. Always packaged 3
The film 1 can be supported without making a space longer than the length, and the box motion mechanism 13 can be used to stably convey the film, and other processing can be performed satisfactorily.

[0014]

Embodiments of the present invention will be described with reference to the drawings.

A roll holding part 21 for rotatably supporting the original roll 1A rotatably supported by the roll holding part 21, a guide part 10 for guiding the film 1 drawn from the original roll 1A, and this guide part. The film 1 drawn out through 10 is folded back and guided in a two-fold state to form the film 1 into a tubular bag, and the opening side of the tubular film 1 is held open so that the object to be packaged 3 is placed in the film 1. A former 12 forming a supply section 11 for supplying the film 1 to which the object 3 to be packaged is supplied from the supply section 11 by a supply / conveyance apparatus 18 and a pair of sandwiching rollers 4A, a carrying-in side conveyor apparatus 19, respectively. The carrying device 4 for carrying out intermittent carrying to one side (carrying side) in the horizontal direction by the carrying-out side conveyor device 20.
A center seal device 2 provided on the film unloading side of the former 12 by the transport device 4 to seal and close the opening side of the tubular film 1, and the tubular film is intermittently provided in a direction orthogonal to the film transport direction. An end seal device 6 that seals into two strips when transportation is stopped, and a gap between the two end seals of the packaging bag 5 containing the article to be packaged 3 formed by these sealing devices 2 and 6 is cut when intermittent transportation is stopped. This is an embodiment in which the present invention is applied to a packaging device having a cutting device 7 that sequentially cuts the packaging bags 5 containing the packages 3 one by one.

In this embodiment, a carrying-in side conveyor device for supplying the film 1 containing the article to be packed 3 to the film carrying-in side with the end seal device 6 and the cutting device 7 as a boundary.
A unloading-side conveyor device for arranging 19 and for supplying the film 1 containing the object to be packaged 3 to the unloading side of the film.
20, the end seal device 6 and the cutting device 7 are provided.
At the same time, an endless belt 19B is laid between a pair of rollers 19A supporting the film 1 and a carrying-in side conveyor device 19,
A box motion mechanism 13 is provided, which is provided with a carry-out side conveyor device 20 in which an endless belt 20B is laid between a pair of rollers 20A and a reciprocating motion in the film transport direction.

The box motion mechanism 13 does not keep the film transport stopped while the film 1 is held and heat-sealed by the end-sealing device 6, and during the heat-sealing so as to improve the packaging efficiency,
The carry-in side carry-in conveyor device 19 and the carry-out side carry-out side conveyor device 20 supporting the film 1 containing the object to be packaged 3 are moved to the carry-out side together with the end seal device 6 (and the cutting device 7), When the heat sealing is completed and the cutting process is completed, the film is already being conveyed during this period, and these devices perform the operation of returning and moving again, and do not wait for a long time until the film conveyance is completed while continuing to stop. It is a mechanism that controls movement so that the next end seal and cutting process can be performed immediately.

In this embodiment, the carry-in side conveyor device 19
The separation space S on the carry-in end side of the carry-in side conveyor device 19 which is widened by the movement of the box motion mechanism 13
Further, a plurality of bearings 14 (rotatably supporting bearing rolls 14 in the present embodiment) having a rotary bearing are installed side by side, and the installation intervals of the bearings 14 vary depending on the width of the separation space S. Therefore, the support 14 is provided so as to be reciprocally movable in the film transport direction so that the distance is not longer than the length of the object to be packaged 3.

Specifically, among the plurality of bearings 14 arranged side by side in the separation space S on the carry-in end side of the carry-in side conveyor device 19, the separation space S is accompanied by the movement of the carry-in side conveyor device 19 to the carry-out side. When the carry-in side conveyor device 19 is moved by a predetermined distance or more, the most carrying-out side supporting body 14 first moves in conjunction with the carrying-out side, and the most carrying-out side supporting body 14 moves by a predetermined distance. Then, the next support 14 is configured to move to the carry-out side in an interlocking manner, and conversely, when the separation space S narrows as the carry-in side conveyor device 19 returns to the carry-in side,
Along with the return movement of the carry-in side conveyor device 19, the bearings 14 that have been sequentially moving from the carry-out side are interlocked and sequentially returned and moved.

Therefore, according to the width of the separating space S caused by the movement of the carry-in side conveyor device 19, the erection intervals of the support members 14 are automatically widened so that the film 1 is always arranged at an interval less than the length of the article to be packaged 3. It is configured to be supported by the above-mentioned support body 14 that is provided. That is, the holding roller 4A and the carry-in side conveyor device 19 which are fixed by the movement of the carry-in side conveyor device 19.
When the carrying-in end of the carrying-in side is separated from the carrying-in end of the carrying-in side conveyor device 19, the carrying-out side conveyor device 19 is separated from the carrying-in side conveyor device 19 by a predetermined distance. The most unloading side support 14 in conjunction with the movement of
Is moved to the carry-out side, the carry-in side conveyor device 19 is further moved to the carry-out side, and the support 14 is moved a predetermined distance, the next support 14 is configured to move to the carry-out side. Space between the body 14 and the carry-in side conveyor device 19 and the support 14
The side-by-side spacing is maintained so that it does not separate more than it hinders film transport.

To further explain, in this embodiment, the support 14 (support roll 14) closest to the carry-in side is fixedly arranged at a position close to the holding roller 4A at the carry-out side of the transfer device 4,
A plurality of (two in this embodiment) bearing rolls 14 are erected in parallel with the bearing rolls 14 on the unloading side, and the (total three) bearing rolls 14 are provided along the guide portion 15. It is configured to be horizontally reciprocable in the film transport direction.

In this embodiment, the separating space S between the holding roller 4A and the carry-in end of the carry-in side conveyor device 19 is widened.
Each of the support rolls 14 disposed on the upper side of the roll mounting plate 26 is rotatably installed side by side so as to be at the same height, and the roll mounting plate 26 on the most loading side is provided in a fixed state and most loaded. The side support roll 14 is disposed close to the holding roller 4A, and the remaining two support rolls 14 are installed on the roll mounting plate 26.
Are horizontally reciprocally movable along the rod-shaped guide portions 15 to the carry-out side in the direction away from the holding roller 4A.

Further, a guide hole 27 is provided in the roll mounting plate 26 on the most unloading side, and a guide rod 28 projecting from the carry-in side conveyor device 19 to the carry-in side is inserted and connected to the guide hole 27, so that the carry-in side conveyor device 19 is provided. Is moved to the unloading side, the guide hole
The guide rod 28 projects from the 27 toward the carry-out side, and the stopper operating portion 29 provided on the guide rod 28 hits the carry-in side surface of the guide hole 27 (after moving a predetermined distance), and the carry-out side of the carry-in side conveyor device 19 Along with the movement of
First, the support roll 14 on the most unloading side is configured to move along the guide portion 15 to the unloading side.

Further, another guide hole 30 is provided in the roll mounting plate 26 of the bearing roll 14 on the most unloading side, and the guide rod 31 protruding toward the unloading side from the roll mounting plate 26 of the intermediate bearing roll 14 is used as a guide. The roller mounting plate 26, which is inserted into and coupled to the hole 30 and the support roller 14 on the most unloading side moves to the unloading side, moves along the guide rod 31, and the stopper operating portion 32 provided on the guide rod 31. When the carry-out side surface of the guide hole 30 of the roll mounting plate 26 abuts (after moving for a predetermined distance), the next intermediate bearing roll 14 is also guided (in conjunction with) as the carry-in side of the carry-in side conveyor device 19 moves (in conjunction). It is configured to move to the unloading side along the portion 15. A guide hole 33 is also provided in the roll mounting plate 26 of the intermediate support roll 14, and is inserted and connected to a guide rod 34 protruding from the roll mounting plate 26 of the support roll 14 on the most loading side.

Therefore, the guide holes 27, 3 of the roll mounting plate 26
The lengths of the guide rods 28, 31, 34 that project from the 0, 33, that is, the carry-in side conveyor device 19 of the guide rods 28, 31, 34 and the roll mounting plate 26 that can slide and reciprocate, are the lengths of the support roll 14. The distance from the conveyor device 19 on the carry-in side at the time of extension and the space between the support rolls 14 are determined. This space is long even if the separation space S in which the support rolls 14 are arranged is enlarged. I try not to exceed it.

That is, when the carry-in side conveyor device 19 is moved to the carry-out side over the length of the article to be packed 3, first the carry-out side support roll 14 begins to move with respect to the fixed carry-in side support roll 14. The next supporting roll 14 which moves further further also moves, and by this movement of the supporting roll 14, the separation space S between the holding roller 4A and the carry-in end of the carry-in side conveyor device 19 is constantly maintained.
Is configured so that there is no space longer than the length of the article to be packaged 3.

Further, when the carry-in side conveyor device 19 further moves back to the carry-in side, the guide rod 28 first projects from the guide hole 27 of the roll mounting plate 26 to the carry-out side and hits the carry-out end of the guide rod 28. When the portion 35 hits the roll mounting plate 26, the bearing roll 14 on the most unloading side moves back to the loading side along the guide portion 15, and at this time, the roll mounting plate 26 moves along the guide rod 31. When the roll mounting plate 26 hits the abutting portion 36 of the roll mounting plate 26 of the intermediate support roll 14, the intermediate support roll 14 also moves back along the guide portion 15, and further the intermediate roll mounting plate 26. Also moves along the guide hole 33, hits the abutting portion 37 of the roll mounting plate 26 of the bearing roll 14 on the most loading side, and the three bearing rolls 14 are brought into close proximity.

Further, in this embodiment, the carry-in side conveyor device
When the carry-out side conveyor device 20 is relatively movable toward and away from the carry-out side conveyor device 19, the box motion mechanism 13 causes the carry-in side conveyer device 19 and the carry-out side conveyor device 20 to move back toward the carry-in side, and the end seal The carry-out side conveyor device 20 is moved closer to the carry-in side conveyor device 19 so as to narrow the gap between the carry-in side conveyor device 19 and the carry-out side conveyor device 20 which are separated due to the operation of the device 6 and the cutting device 7. Is configured.

That is, when the end seal device 6 operates, the film 1 between the carry-in side conveyor device 19 and the carry-out side conveyor device 20 is sandwiched from above and below to be heat-sealed,
Since the cutting device 7 cuts between the heat seals in this sandwiched state, at this time, the carry-in side conveyor device 19 and the carry-out side conveyor device 20 are separated from each other. When finished and opened up and down, the carry-in conveyor device 19 is carried out with respect to the carry-in conveyor device 19 so that the object 3 to be packaged in the film 1 can be delivered from the carry-in conveyor device 19 to the carry-out conveyor device 20 favorably.
Although it is necessary to bring 20 closer to each other, in the present embodiment, when the box motion mechanism 13 moves back, that is, after the end seal device 6 and the cutting device 7 have finished operating, the end seal device 6 and the cutting device 7 operate again. The carry-out side conveyor device 20 is brought close to the carry-in side conveyor device 19 until the start,
When the end seal device 6 and the cutting device 7 operate, they are separated again.

Specifically, a cam mechanism 39 which is moved by a reciprocating oscillating portion 38 which is a driving portion of the box motion mechanism 13 for reciprocating the carry-in side conveyor device 19 and the carry-out side conveyor device 20 is rotationally driven, and By providing a regulation roller 40 that comes into contact with the cam mechanism 39 in a biased state, and swinging the cam swinging portion 41 provided with this regulation roller 40 against the biasing force,
The carry-out side conveyor device 20 is configured to be reciprocally movable in a direction of approaching and separating from the carry-in side conveyor device 19.

The configuration of this embodiment described above will be briefly described based on the operation of the box motion mechanism 13 with reference to FIG.

To explain from the upper side of FIG. 2 to the lower side of FIG. 2, the film transport is stopped and the end seal device 6 is operated to sandwich the film 1 between the carry-in side conveyor device 19 and the carry-out side conveyor device 20 and heat seal it. Then, the holding roller 4A is held until the heat sealing and the cutting process by the cutting device 7 are completed.
The film withdrawing / transporting is restarted, and the end-sealing device 6 and the cutting device 7 as well as the carry-in side conveyor device 19 and the carry-out side conveyor device 20 move to the carry-out side together.

When the carry-in side conveyor device 19 is moved to the carry-out side, the support rolls 14 are sequentially moved, and the length of the article 3 to be packaged is larger than the space S between the carry-in side conveyor device 19 and the holding roller 4A. I try to avoid the gaps.

The operation of the end seal device 6 and the cutting device 7 is completed in a state in which each of the support rolls 14 has been moved to the most unloading side, and the unloading side conveyor device 20 is operated to discharge the packaged object 3 into the wrapping bag 5. At the same time, the support roll 14 is returned and moved, and the end seal device 6, the cutting device 7, the carry-in side conveyor device 19, and the carry-out side conveyor device 20 are moved back to the carry-in side.

At this time, in order to suppress the resistance to the film 1, the carry-in side conveyor device 19 is operated to feed, and the articles 3 to be packaged in the film 1 are easily transferred from the carry-in side conveyor device 19 to the carry-out side conveyor device 20. Thus, the carry-out side conveyor device 20 approaches the carry-in side conveyor device 19, and when the transfer is completed, the carry-out side conveyor device 20 becomes the carry-in side conveyor device 19
After that, the supporting rolls 14 all return and move, the film transport stops, and the end seal device 6 and the cutting device 7 stop at the next operating position.

As described above, in this embodiment, the article 3 to be wrapped in the film 1 is supported by the support guide 42 from the supply section 11 by the former 12 and is transferred onto the support roll 14, and the length of the article 3 to be wrapped is always maintained. Transfer to the carry-in side conveyor device 19 while being supported by the support rolls 14 held at intervals less than or equal to the transfer roll, and to the carry-out side conveyor device 20 that has moved closer to the end, after the end seal and cutting processing, the packaged object 3 packaging bag 5 As a result, it becomes an epoch-making packaging device that can be carried out very smoothly with a simple structure.

Further, the carry-in side conveyor device 19 and the carry-out side conveyor device 20 are provided with a box motion mechanism excellent in durability by arranging the endless belt between a pair of rollers set at predetermined intervals. It is possible to provide a packaging device provided with.

[0038]

Since the present invention is configured as described above, even if a simple structure is adopted, a plurality of bearings such as bearing rollers can be used even if the carry-in side conveyor device is moved by the box motion and the separation space S is widened or narrowed. The erection interval is automatically adjusted so that the film can be supported without leaving an interval longer than the length of the object to be packaged, stable film transfer can be performed even with the box motion mechanism, and other processing can be performed well. It will be an epoch-making packaging device.

Further, in the inventions according to claims 2 and 3, the present invention, which exhibits the above-mentioned actions and effects, can be easily realized with a simpler structure, and is a packaging device of extremely excellent practicality.

Further, in the invention according to claim 4, the interval between the carry-in side conveyor device and the carry-out side conveyor device, which are arranged with the end seal device and the cutting device as a boundary, is set at the timing of transferring the packaged object at the time of returning movement. Since the carry-out side conveyor device is relatively close to the carry-in side conveyor device and is narrowed, transfer from this carry-in side conveyor device to the carry-out side conveyor device is also good, and stable film transport can be achieved even with the box motion mechanism. This is an epoch-making packaging device that can perform other processing well.

Further, in the invention of claim 5, the carrying-in side conveyor device and the carrying-out side conveyor device are provided with durability by disposing the endless belt between a pair of rollers set at a predetermined interval. A packaging device having an excellent box motion mechanism can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating a schematic configuration of a present embodiment.

FIG. 2 is a side view for explaining the operation of the present embodiment.

FIG. 3 is a schematic configuration explanatory perspective view of a main part of the present embodiment in a state where the separation space is the narrowest and the support rolls are closest to each other.

FIG. 4 is a schematic configuration explanatory perspective view of a main part in a state in which a separation space according to the present embodiment is most expanded and each support roll is separated most.

5 is a schematic configuration explanatory side view in a state where the end seal device and the like have finished returning to the carry-in side and the film is sandwiched by the end seal device in the state of FIG. 3 of the present embodiment.

6 is a schematic configuration explanatory side view in a state in which the end seal device and the like have finished moving to the carry-out side and the end seal device and the like have ended in the state of FIG. 4 of the present embodiment.

FIG. 7 is a schematic configuration explanatory side view in a state where the end seal device and the like of the present embodiment are returning to the carry-in side and moving and the carry-out side conveyor device is close to the carry-in side conveyor device.

[Explanation of symbols]

1 film 1A original roll 2 Center seal device 3 Items to be packaged 4 Conveyor 4A holding roller 5 packaging bags 6 End seal device 7 cutting device 10 Information department 11 Supply department 12 Former 13 box motion mechanism 14 bearing 15 Guide section 19 Carry-in side conveyor device 19A roller 19B endless belt 20 Delivery side conveyor device 20A roller 20B endless belt 21 Roll holder S separation space

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65B 11/08

Claims (5)

(57) [Claims] 1. A roll holding portion for rotatably supporting an original roll, a guide portion for guiding a film pulled out from the original roll, and a film pulled out through the guide portion is folded back into a two-fold state. A former that guides and forms the film into a tubular bag and holds the opening side of the tubular film to form a supply unit for supplying the object to be packaged into the film, and a product to be packaged from the supply unit. Conveying device that intermittently conveys the opening side of the supplied film by sandwiching it with a pair of holding rollers, a center seal device that seals and closes the opening side of the tubular film, and the tubular film in the film conveying direction. In a packaging device including an end seal device that seals in a direction orthogonal to each other, and a cutting device that sequentially cuts a packaging bag containing a package formed by these sealing devices , The end seal device and the cutting device as a boundary, on the film carry-in side, a carry-in side conveyor device for supplying the film containing the packaged object is arranged, and at the film carry-out side, the packaged object is contained. Arrangement of a carry-out side conveyor device for supplying a film, and a box motion mechanism provided with the end seal device and the cutting device together with the carry-in side conveyor device and the carry-out side conveyor device so as to be reciprocally movable in the film conveying direction, In the separation space on the carry-in end side of the carry-in side conveyor device which is widened by the movement of the carry-in side conveyor device supporting the film by the box motion mechanism, a plurality of bearings having a rotary bearing part are installed side by side in a line. The erection distance of the support members should be narrowed according to the width of the separated space so that the distance is not longer than the length of the packaged object. Packaging device, characterized in that the provided movably in the film conveying direction Uketamawakarada. 2. When the separation space expands as the carry-in conveyor device moves to the carry-out side among a plurality of the support bodies arranged in parallel in the separation space on the carry-in end side of the carry-in side conveyor device. , With the movement of the carry-in side conveyor device, the most unloading side support moves in tandem to the unloading side, and when the most unloading side support moves a predetermined distance shorter than the length of the packaged object, When the support is configured to move in conjunction with the carry-out side, and conversely the return space of the carry-in side conveyor device is narrowed due to the return movement to the carry-in side, the return movement of the carry-in side conveyor device is performed. The bearings that had been moved to the unloading side in conjunction with the above are configured to sequentially return and move, and the erection intervals of the bearings are automatically set according to the width of the separation space caused by the movement of the loading conveyor device. Widen and narrow the film always The packaging device according to claim 1, wherein the packaging device is configured to be supported by the support body arranged at an interval shorter than the length of the package. 3. A support body on the most carrying-in side is arranged at a position close to a sandwiching roller of the carrying device or the center seal device, and a plurality of support bodies are arranged side by side on the carrying-out side with respect to the support body. 3. The packaging apparatus according to claim 2, wherein a body is installed, and the support body is configured to be horizontally reciprocally movable along the guide portion in the film transport direction. 4. The carry-out conveyor device is provided so as to be relatively movable toward and away from the carry-in conveyor device, and the box motion mechanism returns the carry-in conveyor device and the carry-out conveyor device to the carry-in side. When moving, the carry-out side conveyor is relatively relative to the carry-in side conveyor device so as to narrow the gap between the carry-in side conveyor device and the carry-out side conveyor device that are separated due to the operation of the end seal device and the cutting device. The packaging device according to any one of claims 1 to 3, wherein the packaging device is configured to move closer to each other. 5. The carry-in side conveyor device comprises a pair of rollers and an endless belt spanned by the rollers, and the carry-out side conveyor device comprises a pair of rollers and an endless belt spanned by the rollers. The packaging device according to any one of claims 1 to 4, wherein the packaging device comprises: