JPH11152104A - Standing bag making, filling and packaging method, and machine therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a standing bag efficiently, and set a packaging machine in a small setting space. SOLUTION: An upper sealing unit 20 for heat-sealing mating surfaces of a cylindrical film 1 is disposed below a bag-making guide 12 for forming a sheet like film 1a into a cylindrical shape. A bottom sealing unit 40 for heat- sealing top ends of two lugs formed on the cylindrical film 1 by a folding part 30 is disposed on the side opposite to the upper sealing unit 20 with the cylindrical film 1 therebetween. A feed roller 14 for feeding the cylindrical film 1 downward is provided at a position below both the upper sealing unit 20 and the bottom sealing unit 40, respectively, and a lateral sealing unit 50 for heat-sealing the cylindrical film 1 in the horizontal direction is disposed at a position further below the feed rollers 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag making / filling / packaging method and a bag making / filling / packaging machine for simultaneously making a self-standing bag and filling a filling material.

[0002]

2. Description of the Related Art A packaged product in the form of a free-standing bag can be displayed in an upright state by itself, and is therefore widely used as a packaging format replacing plastic containers, bottles and cans.

[0003] Conventionally, the making of self-standing bags and the filling of filling materials are as follows.
Each is performed in a separate process. That is, in advance, a bag is prepared in which the bottom and both sides folded into a W shape are heat-sealed and only the upper end is opened, and in the filling step, the prepared bags are taken out one by one and the bags are transported in the horizontal direction. While doing
After charging the filler from the opening of the bag, the upper end is heat-sealed to seal the bag.

[0004] However, productivity is poor in separate processes of bag making and filling. Therefore, the sheet-like film is folded in half, and while the folded film is transported in the horizontal direction, the bottom and both sides are heat-sealed and cut into individual bags, and then the filler is filled through the opening at the upper end of the bags. A bag making filling and packaging machine has been developed in which bag making and filling are continuously performed by throwing in and heat sealing the upper end of the bag.

[0005]

However, although the productivity is improved, the bag making / filling / packing machine for performing the bag making and the filling in a continuous manner transports the film in the horizontal direction. However, there is a problem that the size becomes larger.

[0006] The same applies to the case where bag making and filling are separate processes, but there is a danger that dust or the like may enter the bag because the bag is opened while the filler is charged while being conveyed horizontally. . In addition, since the upper end of the bag filled with the filler is heat-sealed, it is extremely difficult to heat seal without mixing air in the bag. Therefore, in the case where the filling is food or the like which is easily oxidized or spoiled, the quality of the filling cannot be maintained if it is exposed to air. In addition, in the case of a foaming filler, for example, a detergent, foam flows out of the opening at the time of filling, and the outer surface of the packaging bag becomes dirty or adheres to the seal portion, resulting in poor sealing.

Accordingly, an object of the present invention is to provide a bag-making and filling method for efficiently producing a self-standing bag and in which air and dust are hardly mixed in the self-standing bag. The present invention also provides
An object of the present invention is to provide a bag making and filling machine that can be installed in a small space while efficiently producing self-standing bags.

[0008]

In order to achieve the above object, the present invention provides a method for making, filling, and packaging a self-standing bag, wherein both end portions of a sheet-like film are overlapped with each other to form a cylindrical shape and the film is fed downward. A step of heat-sealing the overlapped both end portions of the cylindrical film along the longitudinal direction of the film, and a step opposite to the heat-sealed portion of the cylindrical film. Folding the sides inward, heat sealing the tips of the two peaks formed by the folding along the longitudinal direction of the film, and the side edges and the tips of the two peaks overlapped with each other. Has a step of charging the heat-sealed film with a filler, and a step of horizontally heat-sealing the film charged with the filler and cutting the heat-sealed portion.

[0009] In the bag making, filling and packaging method of the present invention as described above, while the tubular film is fed downward, heat sealing is performed on both side edges where the films are overlapped, and
First, the portions corresponding to the upper end portion and the bottom portion of the self-standing bag are heat-sealed by heat-sealing the tip portions of the two mountain portions opposite to the heat-sealed portion. Next, a filling material is put into the film, and the film filled with the filling material is heat-sealed in a horizontal direction, so that a portion corresponding to a side portion of the self-standing bag is heat-sealed. Then, by cutting the portion that has been heat-sealed in the horizontal direction, the film is separated one bag at a time, and a self-standing bag is produced.

[0010] Further, after the step of charging the filler, there is a step of dividing the filler by sandwiching the film from the outside, and performing the above-described horizontal heat sealing at the divided portion, thereby forming the self-standing bag. Air is prevented from entering the interior.

[0011] The self-standing bag making and filling machine according to the present invention is characterized in that both sides are overlapped with each other to form a cylindrical shape, and the overlapped both ends of the film to be fed downward are placed along the longitudinal direction of the film. A first sealing mechanism for heat-sealing the film, a folding mechanism disposed on the opposite side of the film with the first sealing means therebetween to fold a part of the film inward, and forming the film by the folding means. A second sealing mechanism for heat-sealing the tips of the two crests along the longitudinal direction of the film;
A charging pipe inserted into the film for charging the filler into the film heat-sealed by the sealing means and the second sealing means, and disposed below the charging pipe, and the film is moved horizontally. And a third sealing mechanism for heat-sealing and cutting the heat-sealed portion.

In the self-standing bag making and filling machine of the present invention configured as described above, the portion corresponding to the upper end of the self-standing bag is heat-sealed by the first sealing mechanism, and the self-standing bag is self-standing by the second sealing mechanism. The portion corresponding to the bottom of the bag is heat sealed. Then, the filling material is charged into the film by the charging pipe, and the charged portion is heat-sealed in a horizontal direction by a third sealing mechanism, and cut, so that a portion corresponding to the side portion of the self-standing bag is heat-sealed. Then, it is cut and one free-standing bag is produced.

[0013] Further, by further having a squeeze roller for dividing the filling material put into the film, air is prevented from being mixed into the self-standing bag.

[0014] The third sealing mechanism is disposed so as to be opposed to each other with the film interposed therebetween and provided so as to be able to move opposed to each other.
A heater bar for heat-sealing the film, and a cutter holding member for holding a cutter for cutting the film, wherein the cutter holding member is opposed to the heater bar by the retreat of the cutter holding member with respect to the film. A heater receiving member that is moved to a position where the heater bar is retracted with respect to the film in order to cool a portion heated by the heater bar. The cooling member that is moved to the position where the cooling member moves may be provided.

Thus, when the film is heat-sealed, the heater bar is advanced and the cutter holding member is retracted, and the film is heated under pressure by the heater bar and the heater bar receiver. When the heat sealing of the film is completed, the heater bar is retracted and the cutter holding member is advanced, and the film is pressurized by the cutter holding member and the cooling member to cool and cut the heat sealed film.

Further, the second sealing mechanism is provided with three ridges formed on the film by the folding mechanism.
A spot welding portion is formed at the lower corner of the obtained self-standing bag by providing a projection for heat welding in the vicinity of a portion to be heat sealed by the sealing mechanism. As a result, it is difficult for a large force to be applied to a portion of the side portion of the self-standing bag where the seal portion is easily peeled off.

[0017]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic front view of an embodiment of the self-standing bag making and filling machine of the present invention, and FIG. 2 is a schematic side view of the self-standing bag making and filling machine shown in FIG.

This bag making / filling / packaging machine comprises a main pipe 12
This is a vertical filling and packaging machine for bagging a liquid or paste-like filler 5 charged from a charging pipe 11 provided inside the container. A sheet-like film 1 supplied via a tension roller 16 is provided on an outer peripheral portion of the main pipe 12.
A bag-making guide 13 is attached to form a cylindrical shape by overlapping both side ends of the sheet a with each other. The film formed into a tubular shape by the bag-making guide 13 is attached to the upper sealing device 2 provided below the bag-making guide 13.
With 0, the mating surface is heat-sealed in the vertical direction along the side edge, and the cylindrical film 1 is obtained. Upper sealing device 2
0 is the same as a vertical sealing device used in a general vertical filling and packaging machine, and therefore the description thereof is omitted.

Further, as shown in FIG.
On the opposite side of the upper seal device 20 between the two, a bottom seal device 40 for thermally sealing the tubular film 1 in the vertical direction is arranged. The bottom sealing device 40 is for forming a bottom portion of the self-standing bag 100 (FIG. 9) manufactured by the bag making and filling machine. A fold is formed in the film 1 along its longitudinal direction. Therefore, the bottom sealing device 4
Above 0, a fold portion 30 for forming a fold in the tubular film 1 is arranged. Hereinafter, the folded portion 30 and the bottom sealing device 40 will be described.

First, the folded portion will be described with reference to FIG. FIG. 3 is a sectional view taken along the line BB of the folded portion shown in FIG. As shown in FIG. 3, the folding part 30
It is composed of one pressing plate 31 and two pressing plates 32. The respective pressing plates 32 are opposed to each other at an interval inside the tubular film 1. The push plate 31
The side end portion is disposed between the pressing plates 32 on the outside of the tubular film 1 so as to enter.

The tubular film 1 formed into a tubular shape by the bag-making guide 13 (see FIG. 2) is
The portion opposite to the portion to be heat-sealed in (see FIG. 2) is folded by a pushing plate 31, and both sides thereof are held by two holding plates 32. Thus, the tubular film 1 is folded into a W-shaped cross section, and two ears 1c are formed.

Next, the heat sealing device will be described with reference to FIGS. FIG. 4 is a diagram of the bottom sealing device shown in FIG. 2, wherein FIG. 4 (a) is a top view thereof, and FIG.
Shows a side view thereof. FIG. 5 is a cross-sectional view taken along the line CC of the bottom seal device shown in FIG.

As shown in FIG. 4, two heater bar support members 43 are fixed to the frame 10 of the bag making and filling machine at an interval in the vertical direction. Two heater bar shafts 46 are fixed between the heater bar support members 43, and each of the heater bar shafts 46 has a heater bar 4 having a built-in heating means (not shown) such as an electric heater.
4 is provided rotatably in the direction of the arrow shown in the figure. Each heater bar 44 is biased by a biasing means (not shown) such as a spring.
The tips are urged to approach each other.

A heater bar receiver 45 is fixed between the heater bar support members 43. The heater bar receivers 45 are arranged between the heater bars 44. At the tip of each heater bar 44, there is a pressing surface projecting toward the heater bar receiver 45, and these pressing surfaces are heated by the urging force of the urging means.
Pressure on both sides.

On the other hand, a cylinder 41 is fixed to the frame 10 by a cylinder fixing member 42. The cylinder 41 is fixed with its rod facing the heater bar 44. A pressing rod 47 is fixed to the rod of the cylinder 41 so as to penetrate the frame 10. The pressing rod 47 is located in the middle of each heater bar shaft 46 as shown in FIG.
Each of the heater bars 44 is pressed by a protruding portion 44a formed at a portion facing each other. As a result, the heater bars 44 are rotated in a direction to open each other against the urging force of the urging means, and a gap is formed between the pressing surface of each heater bar 44 and the heater bar receiver 45.

As shown in FIG. 3, the two lugs 1c formed on the tubular film 1 by the folding part 30 are respectively provided with a pressing surface of a heater bar 44 and a heater bar receiver 45.
Pass between Here, when the rod of the cylinder 41 is retracted while the feeding of the tubular film 1 is stopped, the pressing of the protrusions 44a of the heater bars 44 by the pressing rods 47 is released, and the respective heater bars 44 are biased. The urging force of the means rotates around the heater bar shaft 46, and the pressing surface of each heater bar 44 is pressed against the heater bar receiver 45. Then, by driving the heating means of each heater bar 44, the distal end of each ear 1c of the tubular film 1 is heat-sealed along the longitudinal direction of the tubular film 1 as shown in FIG. .

Referring back to FIGS. 1 and 2, below the main pipe 12, two pairs of feed rollers 14 sandwiching both sides of the tubular film 1 heat-sealed by the upper seal device 20 and the bottom seal device 40 are provided. Is provided, and the tubular film 1 is fed downward by rotating the feed roller 14 while sandwiching the tubular film 1.

The feed roller 1 is located below the feed roller 14.
A pair of squeegee rollers 15 rotated in synchronization with the rotation of 4
Is provided. The squeeze roller 15 is a cylindrical film 1
The filler 5 is divided by being sandwiched therebetween, and is provided so as to be able to move in the direction of arrow A shown in FIG.

Below the squeeze roller 15, a horizontal sealing portion 50 for heat sealing the tubular film 5 in the horizontal direction is arranged.

The horizontal seal portion 50 will be described with reference to FIG. In FIG. 7, two cylinders 51 and 56 are arranged with their rods facing each other with the tubular film 1 interposed therebetween. Each of the cylinders 51 and 56 is fixed to a slider (not shown) which moves in the horizontal direction.

A cutter holding plate 52 holding a cutter 53 so as to be able to move forward and backward is fixed to the rod of one cylinder 51. The cylinder 51 has a heater bar receiver 54 which is a member for receiving a heater bar 57 described later.
Are provided so as to be rotatable around the support shaft 51a in the direction of arrow D in the figure. The heater bar receiver 54 is urged clockwise in the figure by a spring (not shown). However, the position of the tip of the heater bar receiver 54 is not higher than the height of a heater bar 57 described later. It is regulated not to move. Silicone rubber is affixed to the distal end surface of the cutter holding plate 52 and the distal end surface of the heater bar receiver 54.

Further, the rod of the cylinder 51 is provided with a cam 52a, and the heater bar receiver 54 is provided with a cam receiving roller 54a which comes into contact with the upper surface of the cam 52a when the rod of the cylinder 51 is advanced. I have. Thus, when the rod of the cylinder 51 advances and the cam receiving roller 54a rides on the cam 52a, the heater bar receiver 54 is rotated counterclockwise against the urging force of the spring.

The rod of the other cylinder 56 has a heater bar 5 having a built-in heating means (not shown) such as an electric heater.
7 is fixed. A cooling bar 58, which is a member for receiving the cutter holding plate 52, is provided on the cylinder 56 so as to be rotatable about a support shaft 56a in a direction indicated by an arrow E in FIG. Although the cooling bar 58 is urged counterclockwise in the figure by a spring (not shown), the position of the tip of the cooling bar 58 does not rotate below a height substantially equal to the position of the cutter holding plate 52. Is regulated as follows. Cooling bar 58
The tip of the cutter 5 held by the cutter holding plate 52
When the cutter 3 is moved forward, a groove is formed in which the cutter 53 can enter.

The rod of the cylinder 56 is provided with a cam 57a, and the cooling bar 58 is provided with a cylinder 56
A cam receiving roller 58a is provided which comes into contact with the upper surface of the cam 57a when the rod is advanced. As a result, the rod of the cylinder 56 moves forward and the cam receiving roller 5
When the cam 8a rides on the cam 57a, the cooling bar 58 is rotated clockwise against the urging force of the spring.

Next, the filling / packaging operation by the above-described bag making / filling / packaging machine will be described with reference to FIG. 1 and FIG.

First, in FIG. 1, with the squeeze roller 15 and the horizontal sealing device 50 open, the charging pipe 11
The feed roller 14 is rotated while feeding the filler 5 into the tubular film 1 from below to feed the tubular film 1 downward. At this time, since the upper seal device 20 and the bottom seal device 40 are provided above the lower end of the charging pipe 11,
The portion of the tubular film 1 into which the filler 5 is charged has already been heat-sealed by the upper sealing device 20 and the bottom sealing device 40.

When the cylindrical film 1 is fed by a predetermined amount, the squeeze roller 15 is closed, and the filler 5 is divided as shown in FIG.

When the tubular film 1 is further fed downward by the feed roller 14 and the squeeze roller 15 in this state, as shown in FIG. Is formed.

When the empty filling portion 1b has been fed to a position between the horizontal sealing devices 50, the feeding of the cylindrical film 1 is stopped, and the cylinders 51 and 56 are moved closer by driving the slider.
At this time, the heater bar 57 is being advanced, and the heater bar 57 and the heater bar receiver 54 face each other.
When the cylinders 51 and 56 are moved closer, FIG.
As shown in the figure, the heater bar 57 and the heater bar receiver 5
4 is closed, and the empty filling portion 1b is pressurized. When the heater bar 57 and the heater bar receiver 54 are closed, the heating means incorporated in the heater bar 57 is driven to heat seal the empty filling portion 1b.

When the heat sealing is completed, as shown in FIG. 8C, the heater bar 57 is retracted, and at the same time, the cutter holding plate 52 is advanced. Thus, the cooling bar 58 and the heater bar receiver 54 rotate counterclockwise, and the cooling bar 58 is moved to a position facing the cutter holding plate 52, while the heater bar receiver 54 is retracted upward. As a result, the empty filling portion 1b is pressurized by the cooling bar 58 and the cutter holding plate 52. In this state, the heat-sealed portion is cooled, and the cutter 53 is further advanced to cut the heat-sealed portion.

When the heat-sealed portion is cut, the cylinders 51 and 56 are retracted, and the package is dropped. At this time, the cutter holding plate 52 is retracted, and the heater bar receiver 54 is returned to the original position. And Sigaki Roller 1
Open 5 and let the next filling drop.

The package obtained as described above is a self-standing bag 10 which can be erected as shown in FIG. 9 with the part heat-sealed by the bottom seal device 40 (see FIG. 2) as the bottom.
It becomes 0. In addition, the self-standing bag 100 is connected to the bottom sealing device 4.
Since the part heat-sealed at 0 becomes the rib 101, it can be stably stood. In addition, since the packaging machine performs bag making and filling at the same time, the self-standing bag 100 can be efficiently produced.

Further, according to the present invention, since the bag making is performed with the bottom portion of the self-standing bag 100 lying sideways, the bag making and filling can be performed while the tubular film 1 is fed downward. . As a result, the installation area of the bag making, filling and packaging machine is reduced, and the inside space of the bag is smaller than in the conventional case where the bag with the open upper end is transported in the horizontal direction and the filling is performed and the bag is sealed. It is difficult for garbage to enter. In addition, by charging the filler 5 with the bottom portion of the self-standing bag 100 lying sideways, the diameter of the charging pipe 11 can be increased as compared with the related art. As a result, the charging amount of the filling 5 per unit time can be increased, so that the charging time of the filling 5 is shortened, and the production efficiency of the self-standing bag is further improved.

On the other hand, the heat sealing on both sides of the self-standing bag 100 is performed by the horizontal sealing device 50 as described above, but the horizontal sealing device 50 of the present embodiment stops feeding the cylindrical film 1. In this state, heat sealing and cooling and cutting of the heat sealed portion are performed by different means. Therefore, since the film is cooled immediately after heating, each step of heating, cooling, and cutting the film can be efficiently performed, and the operation from heat sealing to cutting can be speeded up. Strength is improved,
The seal width can be reduced.

In particular, the portion to be heat-sealed by the horizontal sealing device 50 is such that when the tubular film 1 is quadruple in the ear portion 1c shown in FIG. 3, and when the self-standing bag 100 is displayed as a product, Located on both sides. Therefore, the horizontal sealing device 50 is required to be able to reliably weld four films, and it is preferable that the seal width on both sides is small in order to display the product efficiently without any gap. Therefore, the horizontal sealing device 50 of the present embodiment, in which the sealing strength is strong and the sealing width can be reduced, is as follows.
It can be said that it is suitable as a heat sealing device used in the present invention.

The heat sealing in the horizontal sealing device 50 is as follows.
Since the process is performed for the empty filling portion 1b formed by the squeeze roller 15, air is prevented from being mixed into the self-standing bag 100. As a result, it is possible to prevent the filling material from being oxidized or putrefied even in food packaging.

As described above, in the heat-sealed portions on both sides of the self-standing bag 100, the portion corresponding to the ear portion 1c shown in FIG. 3 has a four-layer film, and is more heat-sealed than the other portions. It is a difficult part. In particular, at the tip of the portion where the film is folded inward (portion F in FIG. 9), stress is likely to concentrate when an internal pressure acts on the bottom surface of the self-standing bag 100 due to an impact such as dropping. There may be a boundary between the overlapping portion and the overlapping portion, and the heat seal may be peeled off.

In order to prevent this, FIG.
It is preferable to use a bottom sealing device as shown in FIG. FIG.
In the bottom seal device shown in FIG. 0, a plurality of spot welding projections 84b are provided at the tip of each heater bar 84 at intervals in the vertical direction. Spot welding projection 8
4b is disposed at a position corresponding to the bottom and both corners of the self-standing bag 100 (see FIG. 9) to be produced. Spot welding projection 84b provided on one heater bar 84
Is two when the length of the heater bar 84 in the vertical direction is a length corresponding to one bag of the self-standing bag 100, and is four when the length corresponds to two bags. Individual.

The heater bar receiver 85 has a plurality of protrusions 85 for receiving the spot welding protrusions 84b.
a is provided integrally, and by closing each heater bar 84, the tip end surface of the spot welding projection 84b is pressed against the side surface of the protruding portion 85a, and one portion of the two ear portions 1c shown in FIG. Are spot-welded respectively.

Other structures are the same as those of the bottom seal device shown in FIGS. 4 and 5, and a detailed description thereof will be omitted.

By using the bottom sealing device shown in FIG. 10, spot welding portions 102 (only two locations are shown in FIG. 11) are formed at four locations on the side bottom of the self-standing bag 100 'as shown in FIG. You. These spot welds 102 prevent the ears from spreading near the sides of the self-standing bag 100 '. As a result, a large internal pressure hardly acts on the F portion, and the heat seal at that portion is hardly peeled off.

[0053]

As described above, in the method of making, filling, and packing a self-standing bag according to the present invention, the self-standing bag can be efficiently produced because the bag making and the filling are performed simultaneously. In addition, by performing bag making and filling with the self-standing bag lying down, bag making and filling can be performed while feeding the film downward, and as a result, dust hardly enters the self-standing bag.

The self-standing bag making, filling and packaging machine of the present invention has first to third sealing mechanisms for performing the three heat sealing steps in the above-mentioned bag making, filling and packaging method of the present invention. It is suitable for carrying out the bag making, filling and packaging method, and has the effect that the installation space of the packaging machine is small in addition to the above-mentioned effects.

Further, by having a squeeze roller for dividing the filler charged in the film, air can be prevented from being mixed into the self-standing bag, and the filler is liable to be oxidized and decomposed. Can also be packaged.

Further, the third sealing mechanism comprises a heater bar provided with a movable cooling member and a cutter holding member provided with a movable heater bar receiver.
Heat-sealing strength at the side of the self-standing bag is improved by performing pressure heating of the film by the heater bar and the heater bar receiver, and cooling / cutting the film by the cooling member and the cutter holding member, and sealing. The width can be reduced.

In addition, by providing a projection for spot welding on the second sealing mechanism, it is possible to protect a portion of the self-standing bag where the heat seal is easily peeled off.

[Brief description of the drawings]

FIG. 1 is a schematic front view of one embodiment of a self-standing bag making and filling machine of the present invention.

FIG. 2 is a schematic side view of the self-standing bag making and filling machine shown in FIG.

FIG. 3 is a sectional view taken along line BB of the folded portion shown in FIG. 2;

4 is a view of the bottom sealing device shown in FIG. 2, wherein FIG. 4A is a top view thereof, and FIG. 4B is a side view thereof.

5 is a cross-sectional view of the bottom seal device taken along line CC of FIG.

FIG. 6 is a cross-sectional view of a main part of a tubular film heat-sealed by a bottom sealing device.

FIG. 7 is an enlarged view of the horizontal seal portion shown in FIG.

FIG. 8 is a view for explaining a filling and packaging operation of the self-standing bag making and filling machine shown in FIGS. 1 and 2;

FIG. 9 is a perspective view of a self-standing bag obtained by the self-standing bag making and filling machine shown in FIGS. 1 and 2;

FIG. 10 is a perspective view of a main part of the bottom sealing device shown in FIG. 4;

FIG. 11 is a side view of a self-standing bag whose bottom is heat-sealed by the bottom sealing device shown in FIG. 10;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical film 1a Sheet-shaped film 1b Empty filling part 1c Ear part 10 Frame 11 Feeding pipe 12 Main pipe 13 Bag-making guide 14 Feeding roller 15 Squeeze roller 20 Upper sealing device 30 Folding portion 31 Push-in plate 32 Pressing plate 40 Bottom sealing device 41 , 51, 56 Cylinder 43 Heater bar support member 44, 57 Heater bar 45, 54 Heater bar receiver 46 Heater bar shaft 47 Press rod 50 Horizontal seal device 52 Cutter holding plate 53 Cutter 58 Cooling bar

Claims (6)

[Claims] 1. A process in which both ends of a sheet-like film are overlapped with each other to form a tube and the film is sent downward, and the overlapped two-sided ends of the tube-shaped film are longitudinally extended. Heat sealing along the direction, folding the opposite side of the heat-sealed portion of the cylindrical film into the inside, the tip of the two peaks formed by this folding into the film A step of heat-sealing along the longitudinal direction; a step of charging the film with the overlapped both end portions and the tips of the two peaks being heat-sealed; and a film into which the filler is charged And a step of cutting the heat-sealed portion in a horizontal direction. 2. The method according to claim 1, further comprising the step of dividing the filler by sandwiching the film from outside after the step of charging the filler, and performing the horizontal heat sealing at the divided portion. 2. A method for filling, filling and packaging a self-standing bag according to 1. 3. A first sealing mechanism for heat-sealing said overlapped two-sided ends of a film which is formed into a tubular shape and whose film is fed downward along both sides thereof in a longitudinal direction of said film. A folding mechanism that is arranged on the opposite side of the first sealing means with the film interposed therebetween and folds a part of the film inward; and a tip portion of two peaks formed on the film by the folding means. A second sealing mechanism for heat sealing along the longitudinal direction of the film; and inserting the filler into the film heat-sealed by the first sealing means and the second sealing means. And a third sealing mechanism disposed below the input pipe, heat-sealing the film in a horizontal direction, and cutting the heat-sealed portion. Self-standing bag bag filling and packaging machine having a. 4. The apparatus according to claim 3, further comprising a pair of squeegee rollers for separating the filler charged in the film, the squeegee rollers being disposed so as to face each other with the film facing each other and provided so as to be able to move and rotate. Self-standing bag making and filling machine. 5. The third sealing mechanism holds a heater bar for heat-sealing the film, and a cutter for cutting the film, the heater bar being arranged to face the film and to be movable to face each other. A cutter receiving member, wherein the cutter holding member is provided with a heater receiving member moved to a position facing the heater bar by retreating with respect to the film; The bar is provided with a cooling member that is moved to a position facing the cutter holding member by the retreat of the heater bar with respect to the film in order to cool a portion heated by the heater bar. The self-standing bag making and filling machine according to claim 3 or 4. 6. The second seal mechanism has a projection which is welded in a spot shape. The second seal mechanism has two peaks formed on the film by the folding mechanism. 6. The self-standing bag making and filling machine according to claim 3, wherein projections for heat-welding portions in the vicinity of portions to be heat-sealed in spots are provided.