JPH04311411A - Method and device for filling/packaging in chuck bag - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention provides a technique for attaching zipper tape to the folded part of a long strip of film that is folded in half along the widthwise center of the film to ensure that there is no adhesion failure. The side end of the film opposite to the adhered zipper tape is adhered to the tube bag, and the packaged items are filled into the tube bag while gluing in the width direction at predetermined intervals in the longitudinal direction of the tube bag. The present invention relates to a filling and packaging method and a filling and packaging device for zipper bags.

0002

2. Description of the Related Art A conventional filling and packaging apparatus for zipper bags of this type is described in, for example, Japanese Patent Application Laid-Open No. 61-232114. To explain this in conjunction with FIG. 11, bag material a made of two long strip-shaped films
, a, while abutting each other in the width direction, the zipper tape b, on which the male zipper tape and the female zipper tape have been engaged in advance, is passed through the roller c,
c, and the two surfaces of the zipper tape that are on the back side with respect to the hooking surface, the facing surfaces of the bag materials a, a, and the ends of the bag materials a, a, respectively, using rotary welding devices d, d. and then adhered by first welding devices e, e along the width direction of the bag materials a, a at a predetermined interval in the longitudinal direction of the bag materials a, a, so that one side is open. After that, the filling device f is inserted through the opening.
The opening is then adhesively sealed by second welding devices h, and finally the packages j filled with the filling material g are individually cut by cutting devices i, i. This is what I did.

0003

[Problems to be Solved by the Invention] However, in the conventional zipper bag filling and packaging apparatus, as shown in FIG. When the opposing surfaces of a and a are bonded by rotary welding devices d and d, if the temperature of these rotary welding devices d and d is too high, the engaging surfaces b1 and b1 of zipper tape b are bonded together, In addition, if the temperature of the rotary welding devices d and d is too low, the two surfaces b2 and b2 that are the back side with respect to the engaging surface of the zipper tape and the bag material a,
There was a problem in that the opposing surfaces a1, a1 of a were not bonded to each other, and therefore, it was difficult to control the temperature of the rotary welding devices d, d.

[0004] Furthermore, the end portions of the bag materials a, a to which the zipper tape b is adhered, cannot be adhered to each other at the same time as the zipper tape b is adhered. When filler g is filled from the filling device f through the bag-shaped opening where the tape b is glued and glued at predetermined intervals in the width direction, the zipper tape b
There was also the problem that the filling material g would fall when the container opened.

[0005] Also, the bag materials a, a, are adhered along the width direction of the bag materials a, a at a predetermined interval in the longitudinal direction by first welding devices e, e, so that one of the bag materials a, a in the width direction is open. After that, the filling device f is formed through the opening.
Since the opening is made to be filled with more filler g, there is also a problem in that the opening is difficult to open wide and it is difficult to fill with filler g.

SUMMARY OF THE INVENTION An object of the present invention is to provide a zipper bag filling and packaging method and a filling and packaging apparatus that solve the above-mentioned conventional problems.

[0007]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention folds a long strip-shaped film in two along the center part in the width direction, and then A zipper tape, in which a male zipper tape and a female zipper tape are connected in advance, is sandwiched between the zipper tapes, and each inner surface of the zipper tape is attached to the upper and lower surfaces of a zipper tape guide member placed at a predetermined position. While being intermittently transferred together with the two-fold film, the outer surfaces of both zipper tapes are bonded to each other by an adhesive member disposed at a predetermined position.
It is integrally glued to the inner surface of the folded film, and then the opening side end of the folded film is glued along the longitudinal direction with an adhesive member placed at a predetermined position below the outlet of the hopper to form a tube bag. , the tube bag is glued along the width direction of the tube bag at predetermined intervals in the longitudinal direction to form a bag body which is open at the top, and the bag body is filled with the material to be packaged from a hopper to form the tube. This is a zipper bag filling and packaging method in which the bag is moved downward a predetermined length and the opening of the bag body is glued.

[0008]Furthermore, a male zipper tape is placed in advance between the folding means for folding a long strip-shaped film into two along the widthwise center thereof and the folded portion of the film by the folding means. and a female zipper tape sandwich the hooked zipper tape, and the outer surfaces of the male zipper tape and the female zipper tape are adhered to both inside sides of the folded portion of the film, and further,
A zipper tape adhesive means for adhesively bonding the ends of the folded portions to each other, and the open side end of the opposite film to which the zipper tape guided below the hopper is adhered is adhered along the longitudinal direction to form a tube bag. The forming longitudinal adhesive means is adhered along the width direction of the cylindrical bag at predetermined intervals in the longitudinal direction of the cylindrical bag to form a bag body with an open top, and the bag body is filled with the packaged material from a hopper to the bag body. This zipper bag filling and packaging apparatus is comprised of widthwise adhesive means for filling the tube bag with objects and moving the tube bag downward a predetermined length to adhere the opening of the bag body.

[0009] Further, in the zipper tape adhesive means, an engaging portion in which a convex strip formed at the longitudinal center of the male zipper tape is engaged with a concave strip formed at the longitudinal center of the female zipper tape is loosely fitted. Chuck tape guide members that fit between the male zipper tape and the female zipper tape are provided at intervals along the longitudinal direction of the zipper tape,
A heat welding member is provided that heat-presses and heat-welds the male and female zipper tapes to the folded part of the film arranged to sandwich the male and female zipper tapes loosely fitted in the zipper tape guide member. It was established.

[0010] Furthermore, when forming a tube bag by bonding the open side end of the film opposite to the side to which the zipper tape is bonded by the longitudinal direction bonding means along the longitudinal direction, the width direction bonding means Point adhesion portion of the adhered zipper tape when the tube bag to which the zipper tape is adhered is moved downward by a predetermined length and the opening of the bag body is adhered in the width direction in the next adhesion process by the means. A point bonding means is provided for bonding the male zipper tape and the female zipper tape in advance.

[0011]

[Example] Hereinafter, the method for filling and packaging zipper bags of the present invention will be described. A long strip-shaped film is folded in two along the center of the width direction, and between the folded portions of the film, A zipper tape in which a male zipper tape and a female zipper tape are engaged in advance is sandwiched, and each inner surface of the zipper tape is attached to the upper and lower surfaces of a zipper tape guide member placed at a predetermined position, and then While being intermittently transported together with the folded film, the outer surfaces of both zipper tapes are integrally bonded to the inner surface of the folded film by an adhesive member disposed at a predetermined position, and then the folded film is placed below the outlet of the hopper. The open end is glued along the longitudinal direction with an adhesive member placed at a predetermined position to form a tube bag, and the tube bag is glued along the width direction of the tube bag at a predetermined interval in the longitudinal direction. A bag with an open top is formed, and the bag is filled with items to be packaged from a hopper, and the cylindrical bag is moved down a predetermined length and the opening of the bag is glued. be.

An embodiment of the zipper bag filling and packaging apparatus of the present invention will be described with reference to FIGS. It is a folding means for folding in half, and as shown in FIGS. 1 and 2, a roll part on which a long strip-shaped film 2 pulled out from a roll part 2a is partially wound and the direction is changed. 1a, and an isosceles triangular plate 1b on this roll portion 1a.
The bases of the isosceles triangular plate 1 are arranged close together.
The apex 1c of b comes into contact with the widthwise center of the long strip-shaped film 2, and the film 2 is folded in two along the widthwise center. 1d and 1d are guide rollers that pinch and send out the folded film.

Reference numeral 3 denotes a zipper tape adhesive means, in which a male zipper tape 4a and a female zipper tape 4b are engaged in advance between the folded portion of the film 2 by the film folding means 1 and pulled out from the winding portion 4d. At the same time, the outer surfaces of the male zipper tape 4a and the female zipper tape 4b are adhered to both inner sides of the folded portion of the film 2, and the ends of the folded portions are further adhered to each other.

Further, to explain this zipper tape adhesive means 3 in detail, FIG. 3(A) is a plan view, and FIG. 3(B) is a plan view.
(C) is a front view, and (C) is a right side view. 4 is a sectional view taken along line a-a of FIG. 3(A), and FIG. 5 is a sectional view of FIG. 3(A).
6 is a cross-sectional view taken along line bb of FIG.
A sectional view taken along line c, FIG. 7 shows the zipper tape adhesive means 3
It is a perspective view showing a part of the male zipper tape 4a and the female zipper tape 4b, with an interval 3a in which a hooking part 4c, which is the hooked part of the male zipper tape 4a and the female zipper tape 4b, loosely fitted, between the male zipper tape 4a and the female zipper tape 4b. Chuck tape guide members 3b and 3c to be fitted are provided along the longitudinal direction of the male zipper tape 4a and the female zipper tape 4b, and the male zipper tape 4a is loosely fitted into the zipper tape guide members 3b and 3c.
and the female zipper tape 4b are sandwiched between the two folded films 2, 2 and the male zipper tape 4.
first and second heat welding members 3d1 and 3d1 that heat and press and heat-weld a and female zipper tape 4b;
It is configured by providing 3d2 and 3d2.

Reference numerals 3e and 3f are connecting members that connect the ends of the zipper tape guide members 3b and 3c in order to arrange the zipper tape guide members 3b and 3c at the interval 3a, and this connecting member 3e and the zipper tape guide A male zipper tape 4 is inserted between the members 3b and 3c and between the connecting member 3f and the zipper tape guide members 3b and 3c.
Gaps 3g and 3h where a and female zipper tape 4b are loosely fitted
is formed.

The connecting members 3e and 3f are shown in FIG. 3(A).
And as shown in FIG. 7, the zipper tape guide member 3
Sliding guide portions 3e1 and 3f1 for slidingly guiding the films 2, 2 which are mostly integrally fixed to c and are bent in two.
and connecting portions 3e2, 3f2 which expose most of the zipper tape guide members 3b, 3c and connect the ends of the zipper tape guide members 3b, 3c.

3i, 3i are the parts where the zipper tape 4 is bonded by the first heat welding members 3d1, 3d1,
The second heat welding members 3d2 and 3d2 are heat welding members that heat and press the end portions 2b of the films 2, 2 and weld them together. 3j, 3j are cooling members that press and cool the heat-welded zipper tape 4.

[0018] The first and second heat welding members 3d1
, 3d1, 3d2, and 3d2 to adhere the zipper tape 4 to the folded portion of the films 2 and 2, and heat welding of the ends 2b of the films 2 and 2 to which the zipper tape 4 is adhered by the heat welding members 3i and 3i. The cooling of the heat-welded portion of the zipper tape 4 by the cooling members 3j, 3j is performed by stopping the intermittent movement of the films 2, 2 folded in half at the exposed portions of the zipper tape guide members 3b, 3c. It is done when there is.

5a and 5b are guide rolls for the folded films 2 and 2 disposed on both sides of the zipper tape adhesive means 3, and 5c is a guide roll for the folded films 2 and 2 below the hopper which will be described later. A guide roll that changes direction to
6 is a sensor (photoelectric sensor for pattern matching) that controls the film advance, and the film 2, which is folded in two,
2 is intermittently moved by a predetermined length by a film feeding mechanism (not shown) controlled by a signal from the sensor 6, and when the movement stops, the zipper tape adhesive means 3
The zipper tape 4 is adhered to the folded portion of the film.

Reference numeral 7 includes a hopper in which the items to be packaged are placed, 8 a measuring device for weighing the items to be packaged that have descended from the hopper 7, and 9 a bottom lid that temporarily receives the items to be packaged that have descended from the weighing device 8. Shoot valve for packaged items, 10
receives the packaged item that has descended from the chute valve 9 and transfers it to the film 2 to which the zipper tape 4 is attached.
These chute valves 9 and chute pipes 10 are made of a film with zipper tape 4 adhered to the bifold portion. 2.

Reference numeral 11 denotes longitudinal adhesion in which the open side end of the film 2 opposite to the side to which the zipper tape 4 is adhered is adhered along the longitudinal direction, that is, in the vertical direction in the figure to form a tube bag. means, and this longitudinal adhesive means 1
1, the open side ends of the film 2 are adhered in the longitudinal direction, and the film 2 to which the zipper tape 4 is adhered is formed into a cylindrical shape. Reference numeral 12 denotes a width direction adhesion means for adhering the film 2 along the width direction of the tube bag at predetermined intervals in the longitudinal direction of the tube bag formed in a cylindrical shape. forms an open bag, fills the bag with the material to be packaged from the chute pipe (discharge port) 10 below the hopper 7, moves the cylindrical bag downward a predetermined length, and stops; At this time of stopping, the opening of the bag filled with the object to be packaged is glued. The operation of inserting the object to be packaged into the tube bag made of this film and the operation of gluing the opening of the tube bag after the insertion is repeated in sequence.

As shown in FIG. 9, the open side ends of the films 2, 2 on the side opposite to the side to which the zipper tape 4 was adhered are adhered along the longitudinal direction by the longitudinal direction adhesive means 11 to form a tube bag. When forming the bag, the tube bag to which the zipper tape 4 is bonded is moved downward by a predetermined length in the next bonding step by the width direction bonding means 12, and the opening of the bag body is bonded in the width direction. , the point bonding means 13 for previously bonding the male zipper tape 4a and the female zipper tape 4b of the point bonding portion 4e (see FIG. 10) of the bonded zipper tape 4 is interlocked with the bonding by the longitudinal bonding device 11. It is set up so that Reference numeral 14 denotes a cutter for individually cutting the packaged items as described above, and 15 is a chute for discharging the packaged items 16.

Further, reference numeral 17 denotes a punching member for punching a hole 16a (see FIG. 10) in the folded portion of the film 2 on the outside of the portion where the zipper tape 4 is adhered to the folded portion of the film 2. This hole 16a is used when hanging the item 16 later for display. 18 is the zipper tape 4
This notch member is provided with a notch 16b (see FIG. 10) to facilitate cutting between the bonded portion and the folded portion of the film.

In the zipper bag filling and packaging apparatus as described above, before starting the packaging operation, one long strip of film 2 is manually pulled out from the roll portion 2a, and the second part of the film is While hooking on the roll part 1a constituting the folding means 1, the isosceles triangular plate 1b
When the film 2 is brought into contact with the side surface of the film 2 and pulled out, the apex 1c of the isosceles triangular plate 1b comes into contact with the center of the film, and the film 2 is folded in half along the center.
Set it by holding it between d and 1d. At the time of this setting, the zipper tape 4 pulled out from the winding part 4d is also hooked onto the center part of the roll part 1a constituting the film folding means 1, and is sandwiched between the two folded parts of the film 2. Set it by holding it between 1d and 1d.

Furthermore, the male zipper tape 4a and the female zipper tape 4b forming the zipper tape 4 are loosely fitted into the zipper tape guide members 3b, 3c and pulled out, and then the film is passed through the guide rolls 5b, 5c to the hopper. 7 lower chute valve 9 and chute pipe 1
0 to the longitudinal direction adhesive means 11 and the width direction adhesive means 12, the operation of the zipper bag filling and packaging apparatus is started.

[0026]

Effects of the Invention As explained above, the zipper bag filling and packaging method of the present invention involves folding a long strip-shaped film in two along the widthwise center of the film, and In between, a zipper tape in which a male zipper tape and a female zipper tape have been engaged in advance is sandwiched, and each inner surface of the zipper tape is attached to the upper and lower surfaces of a zipper tape guide member placed at a predetermined position. While the two zipper tapes are being intermittently transferred together with the two-fold film, the outer surfaces of both zipper tapes are integrally bonded to the inner surface of the two-fold film by an adhesive member disposed at a predetermined position, and then the two zipper tapes are placed below the outlet of the hopper. The opening end of the folded film is glued along the longitudinal direction with an adhesive member placed at a predetermined position to form a tube bag, and the edges are glued along the width direction of the tube bag at predetermined intervals in the longitudinal direction of the tube bag. At the same time, the cylindrical bag is glued to form a bag with an open top, and the bag is filled with items to be packaged from a hopper, and the cylindrical bag is moved downward by a predetermined length, and the opening of the bag is glued. In addition, the filling and packaging device includes a bending means for bending a long strip-shaped film along the center part in the width direction, and a male zipper tape in advance between the bending part of the film by the bending means. and a female zipper tape sandwiching the hooked zipper tape, the outer surfaces of the male zipper tape and the female zipper tape are adhered to both inside sides of the folded part of the film, and the ends of the folded parts are further adhered to each other. an adhesion means, and a longitudinal adhesion means for forming a tube bag by adhering in the longitudinal direction the open side end of the film on the opposite side to which the zipper tape guided below the outlet of the hopper is adhered; The tube bag is glued along the width direction of the tube bag at predetermined intervals in the longitudinal direction to form a bag body with an open top, and the bag body is filled with the filling material from the discharge port of the hopper. Since the tube bag is moved downward by a predetermined length and is configured with a widthwise adhesive means for gluing the opening of the bag body, it is possible to fold a long strip of film in half along the widthwise center. While bending, zipper tape is glued to the bent part, and the opening on the opposite side to which the zipper tape was glued is glued in the longitudinal direction to form a tube bag, and a predetermined interval is left in the longitudinal direction on this tube bag. It is possible to sequentially fill the items to be packaged at the same time and package the items very efficiently.

[0027] Further, in the zipper tape adhesive means, an engaging portion in which a convex strip formed in the longitudinal center portion of the male zipper tape and a concave strip formed in the longitudinal center portion of the female zipper tape are engaged with each other is loosely fitted. Chuck tape guide members that fit between the male zipper tape and the female zipper tape are provided at intervals along the longitudinal direction of the zipper tape,
A heat welding member is provided that heat-presses and heat-welds the male and female zipper tapes to the folded part of the film arranged to sandwich the male and female zipper tapes that are loosely fitted in the zipper tape guide member. With this arrangement, the zipper tape can be reliably adhered to the two-fold folded portion along the longitudinal direction of the film to prevent adhesion failure.

[0028] Furthermore, when forming a tube bag by bonding the open side end of the film opposite to the side to which the zipper tape is bonded by the longitudinal direction bonding means along the longitudinal direction, the width direction bonding means may be used. The point adhesion part of the adhered zipper tape when the tube bag to which the zipper tape is adhered is moved downward by a predetermined length and the opening of the bag body is adhered in the width direction in the next adhesion step by the means. By providing a point adhesive means for adhering the male zipper tape and female zipper tape in advance, when each package is manufactured, both ends of the zipper tape attached to the opening of the package can be attached to the package. can be reliably adhered to both ends of the opening.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the zipper bag filling and packaging apparatus of the present invention.

FIG. 2 is a perspective view of a folding means portion for folding the film into two along the center portion in the width direction of the film according to the present invention.

FIG. 3 is a plan view (A), a front view (B), and a right side view (C) of the zipper tape adhesive means in the present invention.

FIG. 4 is a sectional view taken along line a-a in FIG. 3(A).

FIG. 5 is a sectional view taken along line bb in FIG. 3(A).

FIG. 6 is a sectional view taken along line cc in FIG. 3(A).

FIG. 7 is a perspective view of a zipper tape adhesive means in the present invention.

FIG. 8 is a perspective view of a longitudinal adhesive means, a width adhesive means, and a cutter portion in the present invention.

FIG. 9 is a diagram showing point adhesion means of the zipper tape in the present invention.

FIG. 10 is a plan view of a package manufactured according to the present invention.

FIG. 11 is a perspective view of a conventional zipper bag filling and packaging apparatus.

FIG. 12 is an enlarged view of a welded part of zipper tape in a conventional zipper bag filling and packaging apparatus.

[Explanation of symbols]

1 Film bending means 1a Roll part 1b Isosceles triangular plate 1c Vertex 1d Guide roller 2 Film 2a Rolled portion 3 Zipper tape adhesive means 3a Interval 3b Zipper tape guide member 3c Zipper tape guide member 3d1 First heat welding member 3d2 Heat welding member 3e of No. 2 Connecting member 3f Connecting member 3e1 Sliding guide portion 3f1 Sliding guide portion 3e2 Connecting portion 3f2 Connecting portion 3g Gap 3h Gap 3i Heat welding member 3j Cooling member 4 Chuck tape 4a Male zipper tape 4b Female zipper tape 4c Hooking part 4d Wrapping part 4e Point adhesive part 5a Film guide roll 5b Film guide roll 5c Film guide roll 6 Sensor 7 Hopper 8 Measuring device 9 Chute valve 10 Chute pipe 11 Longitudinal adhesive means 12 Width adhesive means 13 Point Adhesive means 14 Cutter 15 Chute 16 Package 16a Hole 16b Notch 17 Punching member 18 Notch member

Claims (4)

[Claims] 1. A chuck in which a long strip-shaped film is folded in two along the widthwise center thereof, and a male zipper tape and a female zipper tape are hooked in advance between the folded portions of the film. While sandwiching the tape, each inner surface of the zipper tape is attached to the upper and lower surfaces of a zipper tape guide member placed at a predetermined position, and the zipper tape is placed at a predetermined position while being intermittently transferred together with the bifold film. The outer surfaces of both zipper tapes are integrally bonded to the inner surface of the two-fold film using an adhesive member, and then the open end of the two-fold film is placed in a predetermined position below the discharge port of the hopper. The tube bag is glued along the longitudinal direction to form a tube bag, and the tube bag is glued along the width direction of the tube bag at a predetermined interval in the longitudinal direction to form a bag body with an open top. A method for filling and packaging a zipper bag, characterized in that the bag is filled with an object to be packaged from a hopper, the cylindrical bag is moved downward by a predetermined length, and the opening of the bag is glued. 2. Folding means for folding a long strip of film into two along the widthwise center thereof, and a male zipper tape placed between the folded portion of the film by the folding means. and a female zipper tape sandwiching the hooked zipper tape, the outer surfaces of the male zipper tape and the female zipper tape are adhered to both inside sides of the folded part of the film, and the ends of the folded parts are further adhered to each other. an adhesive means, a longitudinal adhesive means for forming a cylindrical bag by gluing along the longitudinal direction the open side end of the film on the opposite side to which the zipper tape is adhered and guided below the hopper; The tube bag is glued along the width direction at predetermined intervals in the longitudinal direction to form a bag with an open top, and the bag is filled with the material to be packaged from a hopper to form the tube bag to a predetermined length. 1. A zipper bag filling and packaging device comprising: a width direction adhesive means for moving the bag downward to adhere the opening of the bag body. 3. The zipper tape bonding means has an engaging portion in which a convex strip formed at the longitudinal center of the male zipper tape and a concave strip formed at the longitudinal center of the female zipper tape are loosely fitted. A zipper tape guide member that is fitted between the male zipper tape and the female zipper tape is provided at intervals along the longitudinal direction of the zipper tape, and the male zipper tape and the female zipper tape that are loosely fitted into the zipper tape guide member. 3. Filling a zipper bag according to claim 2, further comprising a heat welding member for heat-pressing and heat-welding the male zipper tape and the female zipper tape to the folded portion of the film arranged to sandwich the film. packaging equipment. 4. When forming a tube bag by bonding the open side end of the film opposite to the side to which the zipper tape is bonded by the longitudinal direction bonding means along the longitudinal direction, the width direction bonding Point adhesion portion of the adhered zipper tape when the tube bag to which the zipper tape is adhered is moved downward by a predetermined length and the opening of the bag body is adhered in the width direction in the next adhesion process by the means. 3. The zipper bag filling and packaging apparatus according to claim 2, further comprising a point bonding means for bonding the male zipper tape and the female zipper tape in advance.