JP2558132Y2 - 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 apparatus which draws out a band-shaped two-fold film of an appropriate size, inserts an article therebetween, melts and welds an opening, and packages the article.

[0002]

2. Description of the Related Art Conventionally, packaging welding using a band-shaped two-fold film wound in a roll shape has been proposed, for example, in Japanese Utility Model Publication No. 62-18 / 1987.
As disclosed in Japanese Patent Publication No. 429, a right-angled triangular film opening device is provided which is provided so as to be opposed to each other in parallel with the product transport belt with the product transport belt interposed therebetween. Following the product transport belt, a product discharge belt is provided, and L is parallel to the product discharge belt.
A letter-shaped sealing device is provided so that one side is located between the two belts. As a result, the product is sandwiched between the two-fold films, sent from the product transport belt to the product carry-out belt, and the opening of the two-fold film is fused and welded by the L-shaped sealing device to complete the packaging. .

A filling device of a type in which a bag is formed in a vertical shape and a product is filled therein is disclosed in JP-B-49-31394. The product is continuously filled in each of the formed bag-shaped bag-shaped bag elements, and the opening is closed.

[0004]

In the former case of the prior art described above, since the opening of the film wrapping the product is located on the side of the two belts, the opening of the film opening device and the film feeding chain are not used. Due to positional restrictions, there is a problem in that a tall product cannot be packed upright. Furthermore, the conventional packaging apparatus has a problem that it cannot be used for film packaging of a product that cannot be wrapped upright and cannot be laid down or a product that cannot be wrapped when folded down. In addition, the base end of the film feeding chain for feeding out the two-fold film cannot be disposed at a position closer to the film roll than between the product transport belt and the product discharge belt, that is, at a position overlapping the product transport belt. When the film is fed, there is a problem that a crack is likely to be generated in a corner portion of the film being fed and fused. This is because the two-folded film is fed out in parallel with the product transport belt interposed therebetween, so that the film feeding device cannot structurally penetrate the film sandwiching the product transport belt. Therefore, it is necessary to pull the cut end portion of the fusing-welded film with the film feeding chain, and it is necessary to minimize the tension applied to the film in order to prevent cracks at the corners of the fusing-welded portion. For this reason, the film must be unwound so as not to come into contact with the apparatus, so that the unwinding angle of the film is limited, the amount of the film required for packaging is increased, and the size of the bag is disadvantageously increased.

[0005] In the latter case of the above-mentioned prior art, only bags of a certain fixed size can be used.
Rather than equipment Ru can be said that a box-like items as appropriate in accordance with the product packaged in a desired size, but no versatility.

The present invention has been made in view of the above-mentioned problems of the prior art, and a tall product can be securely packaged in an upright position using a two-fold film. An object of the present invention is to provide a packaging device that can be packaged.

[0007]

According to the present invention, a product transport belt for feeding a product and a product discharge belt for sending a product are provided in series, and the product transport belt is provided in a packaging apparatus for packaging the product with a two-fold film. across at providing a substantially right angle facing the film outlet opening device together with the belt surface, the film feeding side near the film outlet opening device
A film feeder is provided in the film advancing direction from the upper side of the product transport belt to the product discharge belt, and the opening of the film is blown at a position where the product transport belt and the product discharge belt face each other. A packaging device in which a sealing device for welding is provided in a plane substantially perpendicular to the belt surface of the product discharge belt and parallel to the product discharge direction. Then, place the film under the product transport belt.
From the side above the product carrying belt,
Place the product on the film on the unloading belt and
Fusing and welding the vertical and horizontal openings of the film with the above sealing device
Things. Further, the film is transported to the product transport base.
The product is sent to the opening device from below
The position where each end of the conveyor belt and the above-mentioned product discharge belt face each other
The seal device is provided on the
Lum is the product unloading bell from below the product transport belt.
Is sent out above the port.

[0008]

In the packaging device of the present invention, the film opening device is provided substantially at right angles to the product transport belt, and the film feeder is extended above the product transport belt. The film packaging of the whole product can be surely and neatly performed, and the film can be reliably fed and the bag-making dimension can be reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the packaging apparatus of this embodiment includes a product transport belt 1 for feeding a product 10.
2 and a product discharge belt 14 for sending out products are provided in series, and a pair of right-angled triangular film opening devices 16 are provided on both sides of the product transport belt 12. The film opening devices 16 are provided upright at right angles to the belt surface of the product transport belt 12, and are attached such that the hypotenuse of a right-angled triangle is at 45 degrees to the belt surface as shown in the figure. ing. In the film opening device 16, a two-folded film 20 fed from a film roll 18 around which a two-folded film is wound is hung on the oblique side, and the film feeding direction is changed by 90 degrees.
The film 20 is spread from the folded state so as to straddle the outside of the film opening device 16, and the film 20 is folded inward along the oblique side of the film opening device 16, and the feeding direction is changed by 90 degrees. Then, the folded film 20 is opened to allow the product to be wrapped.

[0010] The goods transport belt 12 and the goods discharge belt 14
The belts 12 and 14 are opposed to each other at a position where the seal device 22 can move at the time of sealing, and the seal device 22 and the seal receiver 24 are provided on both sides of the opposed portion. And are installed facing each other. The sealing device 22 is an L-shaped so-called L sealer.
At right angles to the belt surface and in parallel with the product transport direction. Similarly, the seal receiver 24 is formed in an L shape, and is provided at right angles to the belt surface so as to face the seal device 22.

The goods transport belt 12 and the goods discharge belt 14
Above the part where the product transport belt 12 faces
Film feeding device 26 from
Is provided. The film feeder 26 engages a pair of chains so as to face each other, and bites the film so that the vicinity of the opening of the opened folded film 20 sent from the film opening device 16 is fitted to each other. 20.

The seal device 22 and the seal receiver 24 are
It is attached to the attachment frame 28 via a pair of air cylinder devices 30. Each of the air cylinders 30 is provided so as to be operable in a direction perpendicular to the product conveying direction and in a direction parallel to the belt surface of the product carrying-out belt 24. A spring 32 is provided between the seal receiver 24 and the air cylinder 30 so that the seal device 22 is pressed against the seal receiver 24 with a constant force. Also, the mounting frame 28
Is mounted on a driving device 34 that moves up and down in the vertical direction, and is provided so that the vertical position can be adjusted.

The operation of the packaging apparatus of this embodiment is as follows. First, the product 10 sent from the product transport belt 12 is passed between the film opening devices 16 to be sandwiched between the films 20. At this time, as soon as the film 20 exits the film opening device 16, the film feeding device 2
The product 10 is sent out together with the film 20 as the product transport belt 12 advances while the opening is closed by 6. When the product 10 moves to the product unloading belt 14, this is detected by a sensor (not shown), the product unloading belt 14 is stopped, the air cylinder 30 is operated, and the film is moved between the sealing device 22 and the seal receiver 24. The opening of the film 20 is fused and welded by sandwiching the film 20. Thereafter, the product delivery belt is operated again to carry out the product 10. If necessary, the product wrapped with the film 20 may be shrunk by passing it through a heat tunnel (not shown).

According to the packaging apparatus of this embodiment, even a product having a high height can be wrapped upright, and the film feeder 26 comes close to the film opening device 16, so that the film 20 Is reliably fed out, and even if the resistance of the passage path of the film is large, there is no problem in the feeding of the film, and the film used for packaging can be minimized. Further, even if the product is sent randomly, the product can be securely packed, and the sealing position of the seal device 22 and the seal receiver 24 can be positioned at the center of the product, so that a well-balanced package is possible. Further, by changing the width of the film opening device 16, it is possible to cope with various products, and the seal position can be arbitrarily set by the driving device 34.

The sealing device of the present invention is not limited to the above-described embodiment, but can be set as appropriate. In addition to using an L sealer, a so-called I-type sealing device provided vertically and horizontally can also be used. Needless to say. In addition, the shape of the film opening device is not only a right triangle,
What is necessary is just to be able to open the two-fold film in the vertical direction and insert a product between them.

[0016]

[Effect of the Invention] In the packaging device of the invention, the film opening device and the sealing device are provided in the vertical direction with respect to the product conveying belt, so that the entire product can be wrapped with the product standing .
In this way, film packaging can be performed, and even a high product can be easily and reliably packaged. Moreover,
Since the film feeder is provided to extend above the product transport belt, the film is reliably fed and a film feeding path is formed so as to minimize the amount of film for wrapping the product. However, there is no problem in feeding the film, and the film can be reliably and neatly packed with small bag making dimensions. In addition, the installation area of the apparatus can be reduced, and by changing the width of the film opening apparatus, packaging of any product, large or small, can be easily performed.

[Brief description of the drawings]

FIG. 1 is a front view of a packaging device according to an embodiment of the present invention.

FIG. 2 is a partial perspective view of the packaging device of the embodiment.

FIG. 3 is a right side view of the packaging device of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Commodity 12 Commodity conveyance belt 14 Commodity discharge belt 16 Film opening device 20 Film 22 Sealing device 26 Film feeder

Claims (2)

(57) [Scope of request for utility model registration] 1. A packaging apparatus for providing a product conveying belt for feeding a product and a product discharging belt for sending a product in series, feeding out a band-shaped two-fold film, wrapping the product, and fusing and welding the film for packaging. A film opening device is provided, which faces the product conveyance belt at a substantially right angle to the belt surface and substantially in parallel with the conveyance direction of the product, and is located on a film feeding side of the film opening device. on top of the goods unloaded belt from above
A film feeding device is provided along the film advancing direction, and a sealing device for fusing and fusing the opening of the film at a position where the product transport belt and the product discharge belt are opposed to each other is provided on a belt surface of the product discharge belt. and provided out direction parallel to the plane of the product in the perpendicular direction, the film
From below the product transport belt to above the product discharge belt
On the film on the belt of the product
Place the product and seal the opening of the film.
A packaging apparatus characterized by fusing and welding by an apparatus. 2. The film opening device according to claim 1, wherein the film feeding device is the opening device.
Provided in the vicinity of the film feed side of
Is sent to the opening device from below the product transport belt.
The product transport belt and the product transport belt
The sealing device is provided at a position where each end faces each other.
And whether the film is below the product transport belt
2. The product is sent out above the product carrying belt.
Packaging equipment .