JP2002284195A - Bag with zipper and method of producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag with a zipper which is suitable for a bag used in refilling detergents or the like or a bag for taking out a small amount of seasonings or the like, and also to provide a method of producing the same. SOLUTION: The side web of male type of a zipper strip or the side web of female type thereof is thermally and obliquely connected to the corner of one wrapping film before heat sealing is applied to the superposed portion of the respective ends of two wrapping films of the bag when the two wrapping films are overlapped with each other. Then, the other wrapping film is superimposed on the above wrapping film and heat sealing is applied to the superposed portions except the portions which are used for the filling port of the bag. Thereafter, the male and female type side webs are thermally connected to the wrapping films on the respective sides. Further, the corner part to which the zipper strip is attached is provided with unsealing means such a notch, half cuts, or a perforated line or the like showing the position to be cut off or unsealed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag with a zipper suitable for a bag for refilling a detergent or the like and a bag for taking out a small amount of a seasoning or the like, and a bag making method for the bag with a zipper.

[0002]

2. Description of the Related Art A conventional bag with a zipper is disclosed in, for example,
1 and 2 of JP-263350, which are bags for refilling detergents and bags for removing small amounts of seasonings and the like, for example,
No bag with zipper is provided in the bag shown in 11-349006.

[0003]

[Problems to be Solved by the Invention] In order to provide a bag with a zipper in a bag for refilling a detergent or the like, or a bag for taking out a small amount of a seasoning or the like, improvement of a zipper strip and development of a zipper strip attaching device are indispensable. And application to a bag making machine is required.

An object of the present invention is to provide a bag with a zipper suitable for a bag for refilling a detergent or the like and a bag for taking out a small amount of a seasoning or the like, and a method for making a bag with a zipper.

[0005]

According to the first invention of the present application (the invention described in claim 1), two sheets of packaging film constituting a bag are stacked and heat-sealed at the overlapping portion between the edges. , At an angle to the corner of one packaging film,
The male side web and the female side web are configured so as to prevent the male side web and the female side web from being welded to each other when they are welded to the packaging film, respectively. The male side web or the female side web of the zipper strip with the meshing portion in the meshed state is welded, the other wrapping film is overlaid and pressed by a pair of heat sealers from the outside of the bag. The mold side web and the female mold side web are welded to the packaging film on each side, and the packing material filling port is secured at a location other than the corner where the zipper strip is attached, and the edges other than the packing material filling port are connected. The overlapping part is heat-sealed to make a bag, and the corner part where the zipper strip is attached is provided with opening means such as a notch or half cut, or perforation printing to clearly indicate the cutting and opening position. It is characterized in that which is to provide a zipper-equipped bag.

The second invention of the present application (the invention described in claim 2)
While the film feed is intermittently stopped, at an angle with respect to the corner of the planned bag of one continuous packaging film,
The male side web and the female side web are configured so as to prevent the male side web and the female side web from being welded to each other when they are welded to the packaging film, respectively. The welding portion welds the male side web or the female side web of the zipper strip in the meshed state, and at a position where the other packaging film covers the zipper strip at a position downstream from the mounting position of the zipper strip, The male side web and the female side web were welded to the packaging films on each side by being squeezed by a pair of heat sealers from the outside of the bag, and a zipper strip was attached to the expected filling port of the bag to be wrapped with the packaging film on each side. Heat sealing is applied to the overlapping part of the edges other than the filling port, and then cut into individual bags with a cutter. Characterized in that, there is provided a bag manufacturing method of the zipper-equipped bag.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a bag with a zipper, a bag making apparatus and a method for a bag with a zipper according to the present invention will be described with reference to the drawings. Further, the zipper strip mounting device will be described with reference to the drawings. First, a zipper strip used in the present invention will be described with reference to FIG. The zipper strip G shown in FIG. 1 (a) is composed of a male zipper strip 1 and a female zipper strip 2 which are attached to opposing inner surfaces of the opening of the main body and close the opening of the bag main body. The male zipper strip 1 is, for example, a male web 1 fixed to the inner surface of the opening of the packaging film on the front side of the bag.
a and a male meshing portion 1b co-extruded to protrude integrally from the male web 1a. The male meshing portion 1b is fixed to the center of the width of the male web 1a. The female zipper strip 2 is, for example, co-extruded and molded so as to protrude integrally with the female web 2a fixed to the inner surface of the opening of the packaging film on the rear side of the bag and from the female web 2a. It comprises a female engaging portion 2b which receives the engaging portion 1b in the groove space and snaps the same. The female side web 2a has the same width as the male side web 1a, and the male meshing portion 1b is connected to the female side web 2a.
It is fixed at the center of the width of a. The zipper strip G shown in FIG. 1 (b) is composed of a male zipper strip 1 and a female zipper strip 2, and the male zipper strip 1 is composed of a male side web 1a and a male engagement portion 1b. Meshing part 1
b is fixed to the center of the width of the male side web 1a, the female zipper strip 2 is composed of the female side web 2a and the female meshing portion 2b, and the female side web 2a is located on the bag opening side of the female type meshing portion 2b. It does extend to the inside of the bag. Incidentally, in FIG. 1 (b), the male meshing portion 1b and the female meshing portion 2b may be mounted in a reversed position.

In the packaging film, the innermost film is a sealant (heat-soluble adhesive layer) such as an unstretched low-density polyethylene film, a linear polyethylene film, or an unstretched polypropylene. For example, when low-density polypropylene is selected as the sealant film of the innermost layer of the packaging film, a zipper strip in which unstretched polypropylene is laminated and formed by co-extrusion is selected as the outer layer that adheres to the web packaging film. . When low-density polyethylene or linear polyethylene is selected as the innermost sealant film of the packaging film, low-density polyethylene or linear polyethylene is laminated by coextrusion as the outer layer that is in close contact with the web packaging film. Zipper strips are selected.

In the zipper strip G employed in the present invention, when the male web 1a and the female web 2a are welded to the packaging film, respectively, the male web 1a and the female web 2a are welded to each other. It is a necessary configuration that the situation is avoided. More specifically, the male side web 1a and the female side web 2a have, for example, a three-layer structure, the intermediate layer is a base film, and the outer layers are each formed on a packaging film constituting a bag body.
Consists of a sealant that is welded at 0 ° C to 130 ° C,
The outer layer is made of, for example, a sealant that is welded at 150 ° C to 160 ° C. That is, the inner layer laminate and the outer layer laminate are formed by coextrusion such that the welding temperature of the inner layer of the web is higher than the outer layer by, for example, about 20 ° C. to 40 ° C. The male web 1a and the female web 2a have, for example, a three-layer structure, and the inner and outer layers of the web are both formed of a sealant welded at 120 to 130 ° C. The inner surface of the mold-side web 1a and the inner surface of the female-side web 2a may be coated with a non-adhesive heat-resistant paint so that they cannot be welded, or the male-side web 1a and the female A configuration in which a film having no heat sealing property is laminated on at least one inner surface of the mold side web 2a may be adopted.

Next, a zipper strip mounting apparatus suitable for carrying out the method of making a zippered bag according to the second invention of the present application will be described with reference to FIGS. FIG. 2A shows a state before the zipper strip is attached, and FIG.
Indicates a state where the zipper strip is attached to the packaging film. FIG. 3A shows a state in which the zipper strip shown in FIG. 1A is attached to the packaging film, and FIG. 3B shows a state in which the zipper strip shown in FIG. 1B is attached to the packaging film. Show. The zipper strip mounting device includes a zipper strip feeding device A for feeding out a zipper strip G from a raw material on which the zipper strip is wound, and a zipper strip G that is cut to a certain size above the packaging film F to support and feed the zipper strip G. An upper side device B that presses against the upper surface (inner layer surface) of the packaging film F at the time of intermittent stop, and a heat sealer at the same location on the lower surface of the packaging film F when a zipper strip G of a fixed size is pressed against the upper surface of the packaging film F. And a lower side device C for welding the web on the lower surface side of the zipper strip G to the packaging film F by pressing the zipper strip G.

The zipper strip feeding device A is provided with a feeding roll 4 driven by a servomotor and an accumulator 3, and when the dancing roll of the accumulator 3 rises above the intermediate height level, the feeding roll 4 is slightly accelerated to perform the dancing. When the roll descends from the intermediate height level, the feed roll 4 is slightly delayed so that the zipper strip is cooperated with a pair of zipper strip feed rolls 5 of the upper device B for intermittently feeding the zipper strip G. The zipper strip G is unwound from the web 6 wound with.

The upper device B has a hollow block 7 having a length substantially equal to the bag opening width and a frame-shaped rotating bracket 8e fixed to the lower end of a rotating shaft 8d attached to the frame 8a. The output shaft of the attached servo motor 8f is fixedly connected to the rotating shaft 8d, and the rotating bracket 8e is provided with an elevating rod 8b and an air cylinder device 8c. The hollow block 7 is supported at the lower end of the elevating rod 8b. And a hollow block elevating means 8 for elevating and lowering the hollow block 7 by expanding and contracting an air cylinder device 8c connected to the hollow block 7 and a hollow block for securing a zipper strip between the lower surface of the hollow block 7 and the hollow block. A receiving plate 9 for a zipper strip attached to the diaper 7 and negative pressure generating means (not shown) connected to an external connection hole of a hollow portion 7a of the hollow block 7; A zipper strip holding guide portion 10 provided in one longitudinal end of the hollow blocks 7,
The hollow block 7 of the zipper strip holding guide 10
A pair of zipper strip feed rolls 5 provided at the near end
And a zipper strip cutting machine 11 provided between the zipper strip feed roll 5 and the hollow block 7. Then, when the zipper strip G cut to a length substantially equal to the width of the bag opening is held on the lower surface of the hollow block 7 during the ascent stop, the air cylinder device 8c expands and contracts, and the servo motor 8f operates only 45 degrees. The zipper strip G can be pressed against the upper surface of the packaging film F such that the zipper strip G is displaced by 45 degrees at the lowered position. In addition,
Also when returning to the upward position, the servo motor 8f rotates counterclockwise by 45 degrees and returns. The hollow block 7 of the upper device B and the zipper strip receiving plate 9 cooperate to hold the zipper strip G, and the air cylinder device 8c and the servomotor 8f cooperate to lower the zipper strip G at the lower position by 45.
Pressing against the upper surface of the packaging film F so that the orientation is displaced, the lower side device C of the zipper strip attaching device
And are provided in the same direction. As shown in FIG. 3 (a), the hollow block 7 has a hollow portion 7a which is connected to a negative pressure generating means provided outside and can generate a negative pressure, and can be at substantially the center of the width of the lower surface of the block and orthogonal to the film feeding direction. And a suction hole 7c for guiding a zipper strip G which is communicated with the hollow portion and is sent out in a protruding state is arranged in front of the groove. The zipper strip receiving plate 9 covers a half of the width of the lower surface of the hollow block 7 on the upstream side in the film feeding direction with a slight gap with respect to the block lower surface.
And a guide function for receiving the half of the lower surface of the zipper strip G on the upstream side in the film feeding direction and projecting so that the zipper strip G does not drop. The portion of the lower surface of the hollow block 7 which is not covered with the zipper strip receiving plate 9 is the inner surface of the bag front side film or the inner surface of the bag rear side film which is scheduled to be near the bag opening of the film during which film feeding is stopped. It is located vertically above the mounting position. The zipper strip holding guide 10 is
A pair of pinch rolls 4 and a zipper strip feed roll 5
And the zipper strip G is guided so as not to meander. When the zipper strip feed roll 5 sandwiching the zipper strip G is rotated by the sabo motor 14 by a certain number of revolutions, the zipper strip G is The male or female meshing portion of the zipper strip G is inserted into the groove 7c on the lower surface of the hollow block 7 so that the male or female meshing portion of the zipper strip G slides on the lower surface of the hollow block 7 during the ascent and stops to cover the entire length of the lower surface of the block. Can be sent out to match. The zipper strip cutting machine 11 cuts when the zipper strip G slides into contact with the lower surface of the hollow block 7 that is being lifted and stopped so as to cover the entire lower surface of the block and has a length substantially equal to the width of the bag opening. Cut the zipper strip G.

The lower side device C supports a zipper strip mounting heat sealer 12 and a zipper strip mounting heat sealer 12 at the upper end of a lifting rod 13b guided by a frame 13a. Heat sealer elevating means 13 for elevating and lowering the heat sealer 12 for attaching the zipper strip by expanding and contracting the air cylinder device 13c connected to the sealer 12. The lower device C includes a hollow block 7.
And the zipper strip receiving plate 9 cooperate to hold the zipper strip G having a length equal to the bag opening width, and to halve the lower surface of the zipper strip G on the downstream side in the film feeding direction in the packaging film F near the bag opening. When pressing obliquely against the corner of the bag, the heat sealer elevating means 13 is actuated to move the heat sealer 12 to attach the zipper strip to lower the zipper strip pressing position of the hollow block 7 to the lower side. From the packaging film 7
And the zipper strip G is pressed and heated so that the lower half of the lower surface of the zipper strip G on the downstream side in the film feeding direction is welded to the packaging film. Since the receiving plate 9 for the zipper strip covers half of the width of the lower surface of the lower surface of the hollow block 7 on the upstream side in the film feeding direction with a slight gap with respect to the lower surface of the block, the receiving direction of the film on the lower surface of the zipper strip G is small. When the lower half is welded to the upper surface of the packaging film F near the bag opening and the vacuum suction of the hollow portion 7a is released at the same time, the zipper strip is started even when the hollow block 7 starts moving upward and starts film feeding at the same time. G can be smoothly separated from the lower surface of the hollow block 7.

The above-mentioned zipper strip mounting apparatus shown in FIGS. 2 and 3 is provided at the position where the packaging film F is opened before the continuous closed flat cylindrical shape, and the film feeding is stopped intermittently. Then, the web of the zipper strip G is welded to the sealant of the packaging film, and the attachment is performed by welding the lower half of the zipper strip G (the film contact surface side) on the downstream side in the film feeding direction to the packaging film. Is what you do. Since it is not a complete attachment, it is necessary to perform the second welding as shown in FIG.

FIG. 4 (a) shows the welding of the lower side web 1a of the zipper strip G shown in FIG. 1 (a) (for example, the web which is in close contact with the bag front side film) to the packaging film. The upper surface side web 2a of the strip is welded to the packaging film. FIG. 4 (b) shows that the upper half of the lower side web 1a of the zipper strip G shown in FIG. 1 (b) is welded to the wrapping film on the upstream side in the film feed direction, and the upper side web 2a of the zipper strip G is Shows the place where it is welded.

Next, an embodiment of the bag making method for a bag with a zipper according to the second invention of the present application will be described. FIG. 5 is an overall perspective view of a bag making machine and FIG. 6 is a front view of the bag to be made. This will be described with reference to FIGS. 2, 3, and 4. In addition,
The zipper strip mounting device shown in FIG.
Are indicated by the same reference numerals. FIG. 6 shows a pouch-shaped bag P1 with a zipper strip made by the bag making machine shown in FIG. The bag making method of this bag with a zipper is such that a continuous packaging film F1 unwound from a raw fabric roll R1 is hung on a film splicing roll 15 and then hung on turn bars 16, 17 for changing from horizontal running to vertical running. The film is cut out to a half width by a cutter 19, and the film is hung on an M plate 20 for changing the film from vertical feed to horizontal feed again.
For example, the film on the front side of the bag is horizontally run on the upper side, and the film on the rear side of the bag is horizontally run on the lower side. The films are hung on the accumulators 21 and 22, respectively, and the film feed on the downstream side of the accumulators 21 and 22 is referred to as intermittent feed. Then, the inner surfaces of the bag front side film F2a horizontally running on the upper side and the bag rear side film F2b horizontally running on the lower side are passed between the pair of aligning rolls 23 and brought close to each other. The film is passed between a pair of film draw-off rolls 24 that provide intermittent feeding at a bag length pitch. Here, the bag front side and the bag rear side are formed into a flat cylindrical shape in which the bag front side and the bag rear side are completely in close contact with each other. Front side film F2a running on the upper side of the apparatus on the side and rear side film F2b running on the lower side of the apparatus on the lower side
In the space largely secured between the gusset film roll R2, the gusset film F3 for forming the bag bottom is fed out from the gusset film roll R2, and is hung on the gusset film accumulator 25, and is then hung on the triangular plate former 26, and the inner side of the bag is mountain-folded. Then, the sealant is folded in half so as to be folded outward so that the sealant is on the outside, and a small hole h is provided in accordance with the bag cutting line planned by the punching device 34, and the bag front side film F2a and the bag rear side A stage before sandwiching the two-fold gusset film F3 between the edges of the bag front side film F2a and the bag rear side film F2b between the edges on both sides of the film F2b. Then, the bag rear side film F2b running on the lower side runs horizontally between the two guide rolls (not numbered). An upper device B constituting a zipper strip feeding device shown in FIG. 2 is provided above the horizontal traveling portion, and a lower device C is provided below the horizontal traveling portion. 2 and FIG. 3, a zipper strip G having a length substantially equal to the width of the bag opening in which the male zipper strip and the female zipper strip are constructed so that the webs are not welded to each other. As shown in the figure, the bag is attached (welded) to one of the opposing inner surfaces in the vicinity of the bag opening which is expected to be located at a position slightly smaller than the expected bag cutting line in the bag. The zipper strip G is attached at an angle of 45 degrees to the expected corner of the bag (the preferred angle is specified and the angle is not limited), and subsequently, the bag front side film F2a is attached. In the downstream side after the bag rear side film F2b and clamshell gusset film F3 is passed to the roll 23 and the film lead-out roll 24 fit in the, 5, 6,
The bottom edge of the bag front side film F2a and the bottom side edge of the bag rear side film F2b and the edge of the gusset film F3 are subjected to the bottom seal S1 by the bottom heat sealers 27a and 28a, and the bag front side film F2a and the bag rear side. The top heat sealers 27b and 28b heat seal S2 on the overlapping portion of the top edge corresponding to the corner where the zipper strip G of the film F2b is attached, and wrap the package with the overlapping portion of the top edge that is not heat sealed. As shown in FIG. 4, the web of the zipper strip G is squeezed from the outside of the bag by a pair of zipper strip heat sealers 29 to secure the male zipper strip 1 as shown in FIG. The web 1a and the web 2a of the female zipper strip film 2 are placed on the bag front side corresponding to each side. It is welded to the sealant on the inner surface of the film (lower side) or the film on the rear side of the bag (upper side), further subjected to the side seal S3 by the horizontal heat sealer 30, and then cooled by the cooler 31 to cool the bottom seal portion. The portion adjacent to the seal is cut by a cutter 32, and a stacking machine (not shown) is formed as a pouch-shaped bag P1 with a zipper strip shown in FIG. 6 on a conveyor 33 for performing a stacking operation. The zipper strip-attached bag P1 is provided with an opening means such as a notch or a half cut, or a perforated print or the like indicating a cut-off position at the corner where the zipper strip G is attached. For this purpose, as shown by a symbol m on the packaging film F1, it is assumed that an opening means such as a notch or a half cut or a perforated print indicating a cut-off position is attached. When the packaged product is a liquid, has an aromatic property, or has an oil or fat component or a volatile component, a sealant film is laminated on the inner surface side of the packaging film F1 and the gusset film F3. A film having a barrier property is used. In the bag making machine shown in FIG. 5, the zipper strip attaching device shown in FIG. 2 is provided, but the zipper strip attaching device which descends the zipper strip cut to a predetermined length without changing its direction by 45 degrees in the middle of descending. Can also be arranged. In this case, the upper device B is 45
Change the direction and install.

FIG. 7 is a schematic plan view of a principal part of another bag making machine. The bag making machine shown in FIG. 7 is different from the bag making machine shown in FIG. 5 in that the bottom heat sealers 27a and 28a, the top heat sealers 27b and 28b, the horizontal heat sealer 30 and the cutter 32 are replaced with a heat sealer having a special contour shape. 35
Corresponds to the one that has been replaced with a punch-type cutter 36. In the bag making machine shown in FIG. 7, a zipper strip G is attached to one of the wrapping films F2b, and then the other wrapping film F2a is covered with the zipper strip G. The mold side web and the female side web are wrapped on each side of the packaging film F2a, F2.
b, and then the heat is not applied to the intended filling port k of the bag to be packaged, and the other overlapping portions of the edges of the packaging films F2a and F2b and the packaging films F2a and F2
A heat sealer S4 is applied to the overlapping portion of the edge of 2b and the gusset film F3 by the heat sealer 35, and then the bag is formed by punching and cutting each bag with a punching type cutter 36. ing.
The position where the zipper strip is pressed by the heat sealer 29 may be positioned between the horizontal heat sealer 30 and the cutter 32. FIG. 8 shows a pouch-shaped bag P2 with a zipper strip produced by the bag making machine shown in FIG. Since the bag P2 with the zipper strip is formed by the heat sealer 35 and the punching cutter 36, the shape of the spout can be made into a triangular shape different from the rectangular outline of the whole bag.

A bag P with a zipper strip shown in FIG.
3 is a form of a four-sided seal bag in which a filling port k for a packaged article is secured on the side where the zipper strip G is attached. In the bag making machine shown in FIG.
28a is a bag-forming zipper strip and a bag form when gusset film is not used and a long rod-shaped heat sealable shape is used. The bag P4 with a zipper strip shown in FIG. 9 (b) is in the form of a four-side seal bag in which a filling port k for the article to be packaged is provided on the opposite side of the zipper strip G to the full width of the bag. Machine without gusset film and with top heat sealer 27
It is a bag form that can be made by replacing b and 28b with long ones.

FIG. 10 is a schematic plan view of a main part of a bag making machine for carrying out a bag making method according to another embodiment of the second invention in which bags with zippers can be formed in two rows. . FIG.
In the bag making machine shown in FIG. 1, bags with zippers can be formed in a single row, whereas in this embodiment, bags with zippers can be formed in two rows. The configuration of the bag making machine is as follows:
Although a slight change is required, the configuration of the bag making machine shown in FIG. 7 is provided symmetrically and will not be described.

[0020]

According to the bag with zipper and the method for making the bag with zipper according to the present invention, the zipper strip is provided at the corner of the bag, and the filling port of the article to be packaged is avoided at the corner corresponding to the zipper strip. Since the zipper strip does not need to be opened and closed when filling the wrapped product, it is possible to fill the wrapped product with good quality and seal well, and when the consumer opens the zipper strip, The zipper strip can be opened by opening the zipper strip, which is cut off in parallel with the strip.After removing the required amount of packaged goods, the zipper strip can be reclosed, so it can be used as a refill bag for detergents or a small bag for seasonings. It is suitable.

[Brief description of the drawings]

FIG. 1 is a sectional view of a zipper strip employed in the present invention.

FIG. 2 (a) shows an operation process of the zipper strip attaching apparatus according to the embodiment of the first invention of the present application, and FIG. 2 (a) shows a state before attaching the zipper strip, and FIG. () Shows a state in which the zipper strip is attached to the packaging film.

3 (a) is a view showing a state in which the zipper strip shown in FIG. 1 (a) is attached to a packaging film, and FIG. 3 (b) is a view showing the zipper strip shown in FIG. 1 (b) as a packaging film. The figure which shows the state which is attached.

FIG. 4 shows a state in which a zipper strip is welded to a packaging film from the outside of the bag after forming a continuous sealed flat cylindrical shape. FIG. 4 (a) shows a state in which the zipper strip shown in FIG. 1 (a) is welded. FIG. 4B is a view showing a state where the zipper strip shown in FIG. 1B is welded.

FIG. 5 is a perspective view of a bag making machine for carrying out a bag making method for a bag with a zipper according to the second embodiment of the present invention.

FIG. 6 is a front view of a bag with a zipper strip manufactured by the bag making machine shown in FIG. 5;

FIG. 7 is a schematic plan view of a main part of a bag making machine for carrying out a bag making method capable of forming bags with zippers in a line in another embodiment of the second invention of the present application.

FIG. 8 is a front view of a bag with a zipper strip manufactured by the bag making machine shown in FIG. 7;

9 is a front view of a bag with a zipper strip manufactured by partially replacing parts of the bag making machine shown in FIG.

FIG. 10 is a schematic plan view of a main part of a bag making machine for carrying out a bag making method capable of forming bags with zippers in two rows according to another embodiment of the second invention of the present application.

[Explanation of symbols]

G: Zipper strip, 1: Male zipper strip, 2: Female zipper strip, 1a: Male side web, 1b: Male meshing portion, 2a: Female side Web, 2b: female type meshing part, A: zipper strip feeding device, B: upper device, F: packaging film, C: lower device, 3: accumulator,
4 ... unrolling roll, 5 ... zipper strip feed roll, 6 ... raw material with zipper strip wound, 7
... hollow block, 7a ... hollow part of hollow block, 7b ... groove, 7c ... suction hole, 8 ... hollow block elevating means, 8a ... frame, 8b ... elevating Rod, 8c: Air cylinder device, 8d: Rotating shaft,
8e: rotating bracket, 8f: servo motor, 9
... Receiving plate for zipper strip, 10 ... zipper strip holding guide, 11 ... zipper strip cutting machine, 12 ... heat sealer for attaching zipper strip, 13 ... heat sealer elevating means, 13a ...
Frame, 13b: Lifting rod, 13c: Air cylinder device, 1a, 2a: Web of zipper strip, R1: Raw material roll, F1: Packaging film, 1
4 ... sabo motor, 15 ... film splicing roll,
16, 17: turn bar, 18: feeding roll, 19: cutter, 20: M plate, 21, 22
... Accumulator, F2a ... Bag front side film,
F2b: film on the back side of the bag, 23: matching roll, R2: raw roll for gusset, F3: gusset film, 25: accumulator for gusset film, 26: triangular plate former, 27a , 28a ...
・ Bottom heat sealer, S1 ・ ・ ・ Bottom seal, 27
b, 28b: top heat sealer, S2: heat seal, 29: heat sealer for zipper strip, 30: horizontal heat sealer, 31: cooler, 32: cutter, 33 ...・ Conveyor, 34 ・
..Punching equipment, h: small holes, P1 to P4: bags with zipper strips,

 ──────────────────────────────────────────────────続 き Continued on front page F term (reference) 3E064 AA01 AA11 BA26 BA30 BB03 BC08 EA12 EA23 FA03 GA10 HM01 HN13 HP01 HP02 3E075 AA28 BA42 BA46 BA70 BB14 BB15 CA02 DA03 DA04 DA05 DA14 DA32 DD13 DE14 DE17 FA07 FA13 GA05

Claims (2)

[Claims] 1. A method according to claim 1, wherein before the two packaging films constituting the bag are overlapped and heat-sealed at the overlapping portions of the edges, the male side web and the female are slanted with respect to the corner of one of the packaging films. When the mold side webs are welded to the packaging film, respectively, the male side web and the female side web are configured to be prevented from being welded to each other, and the male side meshing section and the female side meshing section are in the meshing state. The male side web or the female side web of the zipper strip is welded, the other wrapping film is overlaid and sandwiched by a pair of heat sealers from the outside of the bag to form the male side web and the female side. The side web is welded to the packaging film on each side, and the stuffed product filling port is secured at a place other than the corner where the zipper strip is attached, and heat sealing is performed at the overlapping portion of the edges other than the wrapped product filling port. Made and made Is further characterized in that demonstrates perforation printing the opening means or cut open position such as notches or half-cut in the corner with attached zipper strip is attached, the zipper-equipped bag. 2. While the film feed is intermittently stopped, the male web and the female web are welded to the packaging film, respectively, at an angle to the expected corner of the bag of one of the continuous packaging films. In this case, the male side web and the female side web are configured to be prevented from welding to each other, and the male side web or the zipper strip of the zipper strip in which the male side meshing section and the female side meshing section are in the meshing state. At the position where the other wrapping film covers the zipper strip at a position downstream of the mounting position of the zipper strip while welding the female mold side web, the male mold is pressed by a pair of heat sealers from outside the bag. The side web and female side web are welded to the wrapping film on each side, and the expected filling port of the bag to be wrapped is other than the corner where the zipper strip is attached. To ensure subjected to heat-sealing the overlapping portions of the edge with each other except 該被 packaging filling port, then characterized by divided for each one bag by a cutter, the bag-making method of the zipper-equipped bag.