JP2010162705A - Method of manufacturing cylindrical bottomed bag, apparatus for manufacturing the same and paste-like material-sealed cylindrical bottomed bag food using the bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a new type cylindrical bottomed bag having a cylindrical tub, which has both of the convenience of a cartridge type container and the convenience of an inner bag of the container, and a disk like bottom, and to provide an apparatus for manufacturing the cylindrical bottomed bag, and a paste-like material sealed cylindrical bottom bag food using the cylindrical bottomed bag. <P>SOLUTION: In the method of manufacturing the cylindrical bottomed bag formed by fusing a disk like bottom material and a cylindrical film to each other, a rising part of a bottom part covers a seal receiver expandable in the diameter direction to be held by a head part of a cylindrical holding tool having a diameter a little smaller than the diameter of the cylindrical film. The cylindrical film covers the bottom member and the cylindrical film is moves to a seal planed position, the seal receiver in the head of the holding tool is extended to the diameter direction and a first fusion is carried out in the extended state. Next, the bottomed bag formed by the first fusion is rotated quarter to carry out a second fusion. This invention includes the apparatus for manufacturing the bottomed bag, and the paste-like material sealed cylindrical bottomed bag food using the cylindrical bottomed bag. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a new type of cylindrical self-supporting bag having a cylindrical film and a disk-shaped bottom portion having a rising edge in a molded product.

When selling mayonnaise, ketchup, various types of cream, mustard, other viscous liquids, pastes, etc. to foods, mass retailers of edible foods such as hamburgers and hot dogs need to treat them in large quantities. For this reason, the above-mentioned viscous liquid material and paste-like material are automatically dispensed in appropriate amounts from the container by a dispenser so as to improve efficiency at the time of sale. A cartridge type container is often used for the dispenser. (Patent Document 1) Since these cartridge-type containers are disposable, they are easy to use, but the influence on the environment is not necessarily good, and improvements are required in terms of cost, and various proposals have been made.

Instead of cartridges, proposals have been made to use inner bags. (Patent Document 2) The use of an inner bag means that if the container is filled with a viscous liquid or paste-like material without filling the container, the container is not washed after the contents are used. Both can be used by simply replacing the inner bag. By the way, the inner bag can be used for replacement, but its shape requires the convenience of a cartridge-type container, so the bottom disk and the cylindrical main body film must be sealed. The bag sealing operation was very difficult.

JP 3-23436 JP 11-100043 A

The problem to be solved by the present invention is a new type of cylindrical bottomed bag having a cylindrical film having both the ease of a cartridge-type container and the ease of an inner bag of the container and a disk-shaped bottom portion having a rising in a molded product Manufacturing method and apparatus therefor, and a paste-form-filled cylindrical bottomed bag food using the bag.

A method for producing a new type of cylindrical bottomed bag having a disc-shaped bottom according to the present invention,
In a manufacturing method of a cylindrical bottomed bag in which a cylindrical bottom member having a rising shape and a cylindrical film are welded, the head of a cylindrical holder having a diameter slightly smaller than the diameter of the cylindrical film A diametrically expandable seal holder is covered with a rising portion of the bottom member, the tubular member is covered with a tubular film, the tubular film is moved to a predetermined sealing position, and the head of the holder is The seal receiver is expanded in the diametrical direction, and the first welding is performed in the expanded state, and then the second welding is performed by rotating the bottom-sealed bag with the first welding by a quarter turn.

Furthermore, a new type of cylindrical bottomed bag manufacturing apparatus having a disk-shaped bottom is
In a manufacturing apparatus for a cylindrical bottomed bag in which a cylindrical bottom member having a rising shape and a tubular film are welded, a cylindrical holder having a diameter slightly smaller than the diameter of the tubular film is provided, A holder having a plurality of diametrically expandable seal receivers on the head of the holder, and holding the bottom member over the seal receiver; covering the bottom member with the tubular film; A step of moving the bottom member and the tubular film to a sealing position, a step of expanding the seal receiver, a first sealing step of sealing the bottom member and the tubular film, and a predetermined rotation of the first sealed bottomed bag It has the process of moving, the 2nd sealing process of sealing an unsealed, and the process of taking out a cylindrical bottomed bag from a holder.

In addition, the column-shaped bottomed bag food enclosed with the paste-like material is a tube-shaped paste-like food in the columnar bottomed bag made by the columnar bottomed bag manufacturing method or the columnar bottomed bag manufacturing apparatus. Filling from the film opening opposite to the bottom member seal of the film, the cylindrical film is sealed by being folded flat and heat-sealed.

In addition, in the column-shaped bottomed bag food enclosed with a paste-like material, if the gusset is formed in the flat folded portion of the tubular film, it can be easily used when used in a dispenser.
Also, if the bottom member of the cylindrical bottomed bag is provided with a plurality of open valves and sealed with a peelable film, the paste can be used as it is because the open valves are provided when used with a dispenser. The above-mentioned problems are solved by providing a cylindrical product with a cylindrical bottomed bag.

The manufacturing method of the cylindrical bottomed bag by this invention can seal the disk-shaped bottom part which has a standing | starting-up with a cylindrical film and a molded article, without a crack. Moreover, by using the apparatus, it is possible to manufacture a cylindrical bottomed bag very easily without generating wrinkles in the seal portion. Moreover, it is a new type of self-supporting bag having a disc-shaped bottom part, and can be used in the same manner as a cartridge-type container by providing an open valve at the bottom part.

It is a perspective view which shows the cylindrical bottomed bag of one Example which concerns on this invention. It is explanatory drawing explaining the process of one Example of this invention. It is a perspective view explaining the state by which the column-shaped bottomed bag of one Example which concerns on this invention was filled with the paste-form food from the film opening, and this cylindrical film was folded flat and heat-sealed.

The present invention will be described below with reference to the drawings.
The cylindrical bottomed bag of one embodiment according to the present invention is a cylindrical bottom member 2 which is a molded product of polypropylene, a cylindrical film 1 of nylon and polypropylene, and a rising portion of the cylindrical bottom member 2 and the cylindrical film 1. Is heat welded.

First, as the cylindrical film 1 used in the present invention, a nylon and polypropylene co-extruded blown film can be used, but the resin composition of the film is not particularly limited, and a conventionally used resin such as polyethylene or polyester is selected. can do. The tubular film 1 is preferably a film obtained by cutting an inflation film into a desired length as it is, but the end of a film formed into a flat shape by an inflation extrusion molding method or a T-die extrusion molding method having different sizes. The parts may be molded into a cylindrical shape by heat sealing or the like.

Further, the disk-shaped bottom member 2 is formed by cutting a rising portion into a flat film of polypropylene, and the material thereof preferably has a thickness of 300 microns or more in order to form the opening valve 3. Since the material is thermally welded to the tubular film 1, polypropylene and polyethylene can be mainly selected.

Next, a method of manufacturing the cylindrical bottomed bag of the present invention from the cylindrical film 1 and the disk-shaped bottom member 2 and the apparatus will be described with reference to FIG.

First, a cylindrical holder 10 having a diameter slightly smaller than the diameter of the cylindrical film 1 has a seal cradle 11 that is divided at the head of the holder 10 so as to be expandable in the diameter direction. The divided seal receiver 11 is expanded by inserting a wedge into the divided portion, and has a structure for maintaining the diameter. Therefore, the seal cradle 11 is placed in a closed state so as to cover the disk-like bottom member 2 having a rise on the upper surface thereof.

Next, the cylindrical film 1 cut into a predetermined length is placed on the disk-shaped bottom member 2 having a rising edge, and moved to the sealing position of the bottom member 2 and the cylindrical film 1. Next, when the seal receiver 11 is expanded, the rising portion of the disk-like bottom member 2 is pushed and spread, and can be brought into close contact with the inner surface of the covered tubular film 1. At this time, after the disk-shaped bottom member 2 is placed, the insertion of the tubular film 1 can be facilitated by using the insertion guide 12 of the tubular film 1 that also serves as a fixing to the bottom member 2 placed on the seal cradle 11. Good to be. When the seal cradle 11 is expanded, the bottom member 2 and the tubular film 1 are fixed. In this state, the bottom member 2 and the tubular film 1 are overlapped with each other, and a first heat seal is performed by pressing a heater block 14 that is temperature-controlled by two in a sandwiched shape from the outside.

The bottomed bag after the end of the first heat seal is rotated and moved by approximately 90 degrees, and a second heat seal similar to the first heat seal is performed. In this way, by performing the heat sealing separately for the first heat sealing and the second heat sealing, it is possible to reliably heat seal the gap between the two heater blocks 14. Finally, the cylindrical bottomed bag can be completed by removing the cylindrical bottomed bag that has been heat-sealed from the holder 10. The cylindrical film 1 is put on the disk-shaped bottom member 2 having a rising, and the seal cradle 11 is expanded, so that the bottom member 2 and the cylindrical film 1 can be sealed in a close contact state, so that a pinhole due to a heel Can be prevented.

As shown in FIG. 3, the cylindrical bottomed bag is filled with paste-like food from the film opening 5, and the lower end portion of the tubular film 1 is folded flat and heat-sealed. At this time, as shown in FIG. 3 (b), if the gusset is taken on the side of the tubular film 1 and folded flat, the shape of the seal portion becomes close to a circle, so it is attached to the cartridge when used in a gun dispenser. It becomes easier and pinholes are less likely to occur.

In addition, when the bottom member 2 having a cross-shaped or asterisk-shaped opening valve provided in advance on the flat portion of the disk-shaped bottom member 2 and sealed with a peelable top cover film 4 on the outer side of the opening valve is used, a paste-like food is used. Can be used by simply removing the top cover film 4 when used with a gun dispenser after filling and sealing.

The disk-shaped bottom member 2 is a polypropylene plate having a thickness of 300 microns. In the hill portion, four opening valves 3 provided with an asterisk-shaped cut of 15 mm across are formed. The hill where the opening valve 3 is provided is covered with a PET / PP cover film 4 on the outside. This cover film 4 is an easy peel seal, and has a structure in which the opening valve 3 can be used as it is by peeling off.

Next, the cylindrical film 1 was a nylon / polypropylene co-extruded blown film having a thickness of 70 microns, a folding diameter of 124 mm, and a length of 200 mm.

Next, a sealing method will be described using a sealing device for the disc-shaped bottom member 2 and the tubular film 1.
The sealing device is a cylindrical holder 10 having a diameter of 76 mm and a height of 250 mm. The head of the holder 10 is divided into two discs having a diameter of 79 mm and a thickness of 15 mm, and is closed. The opposite side is 76 mm, and it is a seal cradle 11 having a structure that can be expanded to 79 mm by an expansion lever, and below that is a skirt portion.

First, the disc-shaped bottom member 2 is placed on the seal cradle 11. By placing the insertion guide 12 on the bottom member 2 and covering the insertion guide 12 with the tubular film 1, the rising of the bottom member 2 and the sealing position of the tubular film 1 can be easily matched. If the seal receiving base 11 is expanded by operating the expansion lever 13 of the seal receiving base 11 after confirming the seal position, the rising portion of the bottom member 2 and the tubular film 1 can be brought into close contact with each other.

The riser of the bottom member 2 and the inner surface of the tubular film 1 can be heat-sealed by sandwiching the seal cradle 11 with a temperature-controlled heater block 14 having a shape matched to the seal cradle 11. After the heater block 14 is released and cooled, the cylindrical bottomed bag is rotated 90 degrees, and the seal cradle 11 is sandwiched again by the heater block 14, heat sealing is performed, and after the heater block 14 is opened and cooled, the insertion guide 12 is removed and completed. The cylindrical bottomed bag was removed from the holder 10 to complete the cylindrical bottomed bag. The rotation of 90 degrees and the removal of the finished cylindrical bottomed bag can be performed more smoothly when the seal cradle 11 is expanded.

Next, 540 g of mayonnaise was filled from the opening 5 so that bubbles were not mixed as much as possible.

The opening 5 was folded flat to eliminate bubbles as much as possible and heat-sealed to produce a paste-filled cylindrical bottomed bag food. Similarly, after filling 540 g of mayonnaise from the opening so that bubbles do not mix as much as possible, the opening 5 is folded flat to eliminate bubbles as much as possible, then both sides folded flat are taken with a 2 cm gusset and heat sealed. Thus, a column-shaped bottomed bag food containing a paste-like material was produced.

These pasty-filled cylindrical bottomed bag foods could be used smoothly by simply peeling off the cover film of the opening valve when used in a gun dispenser.

DESCRIPTION OF SYMBOLS 1 Cylindrical film 2 Disc shaped bottom member 3 Opening valve 4 Top cover film 5 Opening part 5A, 5B Opening seal 10 Holder 11 Seal receptacle (table)
12 Insertion guide 13 Expansion lever 14 Heater block

Claims (5)

In a manufacturing method of a cylindrical bottomed bag in which a cylindrical bottom member having a rising shape and a cylindrical film are welded, the head of a cylindrical holder having a diameter slightly smaller than the diameter of the cylindrical film A diametrically expandable seal holder is covered with a rising portion of the bottom member, the tubular member is covered with a tubular film, the tubular film is moved to a predetermined sealing position, and the head of the holder is The seal holder is expanded in the diametrical direction, the first welding is performed in the expanded state, and then the second welding is performed by rotating the bottomed bag with the first welding for a quarter turn. Manufacturing method of bottom bag. In a manufacturing apparatus for a cylindrical bottomed bag in which a cylindrical bottom member having a rising shape and a tubular film are welded, a cylindrical holder having a diameter slightly smaller than the diameter of the tubular film is provided, A holder having a plurality of diametrically expandable seal receivers on the head of the holder, and holding the bottom member over the seal receiver; covering the bottom member with the tubular film; A step of moving the bottom member and the tubular film to a sealing position, a step of expanding the seal receiver, a first sealing step of sealing the bottom member and the tubular film, and a predetermined rotation of the first sealed bottomed bag An apparatus for producing a cylindrical bottomed bag comprising a step of moving, a second sealing step of sealing an unsealed seal, and a step of taking out a cylindrical bottomed bag from a holder. A columnar bottomed bag made by the manufacturing method of the cylindrical bottomed bag according to claim 1 or the cylindrical bottomed bag manufacturing apparatus according to claim 2, wherein paste-like food is placed on the bottom member seal of the tubular film Is filled with the film opening on the opposite side, and the cylindrical film is sealed by being folded flat and heat-sealed. The paste-like-enclosed columnar bottomed bag food according to claim 3, wherein a gusset is formed in a portion of the tubular film folded flat. 5. The pasty-stuffed cylindrical bottomed bag food according to claim 3, wherein the bottom member of the cylindrical bottomed bag is provided with a plurality of opening valves and sealed with a peelable film.

Images