JP2015030231A - Manufacturing method and manufacturing device for gazette bag with inner partition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method and a manufacturing device for a synthetic resin gusset bag which can take two pieces of the gusset bag with inner partition.SOLUTION: A molding material deployment mechanism 30 is provided in which a lateral gusset molding material 3 of twice the length of a lateral gusset part 3 and an inner partition molding material 4 are installed on a back surface film 2. A back surface heating seal mechanism 40 for temporarily bonding the lateral gusset molding material 3 and the inner partition molding material 4 is installed on the back surface film 2. A surface heating seal mechanism 50 installed in which the surface film 1 is temporarily bonded on the lateral gusset molding material 3 and the inner partition molding material 4. A bottom exposed mechanism 60 is installed for folding back the bottom surface 3B of the lateral gusset molding material 3 and the bottom surface 4B of inner partition molding material 4. A bottom seal mechanism 70 is installed which includes a closure 71 closing each bottom surface 3B and 4B. A joint mechanism 80 is installed for joining the lateral gusset molding material 3, the inner partition molding material 4, and a bottom film 5 with the surface film 1 and the back film 2.

Description

  The present invention relates to a method and an apparatus for manufacturing a gusset bag with a partition formed of a synthetic resin material, and an gusset bag with a partition that can take two gusset bags having a partition with an automatic bag making machine. The present invention relates to a manufacturing method and a manufacturing apparatus.

  As a method and an apparatus for manufacturing a synthetic resin gusset bag, for example, techniques described in Patent Document 1 and Patent Document 2 have been proposed.

  In the manufacturing method described in Patent Document 1, the horizontal gusset forming material constituting the horizontal gusset portion is interposed between the front and back films, and a separate bottom film constituting the bottom portion is further provided with respect to the transport direction of the front and back films. The film is welded while being conveyed in parallel to produce a gusset bag.

  A bag making machine for producing a gusset bag described in Patent Document 2 is an apparatus for producing a square bottom by folding a part of a belt-like film constituting a body part in a double fold shape and guiding it to the bottom part.

  On the other hand, the structure which provided the partition in the gusset bag is described in patent document 3 and patent document 4. The gusset bag described in Patent Document 3 constitutes a plastic bag, and a plastic bag comprising a horizontal gusset bag is provided with a partition. According to this shopping bag, a storage portion is formed by providing core portions extending in a columnar shape in the vertical direction at the four corners of the storage portion, and partitions are arranged in this storage portion to constitute a partition.

  Patent Document 4 describes a bag with a partition provided with a partition sheet that partitions the inside of a bottom gusset bag made of an appropriate paper material such as multilayer paper or plastic laminate paper. According to this bag with a partition, since the lower part and both side parts of the partition sheet are adhered to the bag body, the strength of the bag is increased, and the stored articles can be prevented from being mixed together.

Japanese Patent No. 4436521 Japanese Patent No. 3655627 JP 2006-131250 A Utility Model Registration No. 3134931

  None of the conventional gusset bag manufacturing methods and apparatuses are suitable for a manufacturing method called so-called two-piece production, in which both gusset bags can be manufactured one by one, but two gusset bags are manufactured simultaneously. Met.

  That is, in the conventional manufacturing method of taking two synthetic resin bags, in order to manufacture two synthetic resin bags at the same time with one manufacturing apparatus, it is normally manufactured with the opening portions of the bags facing each other. doing. Therefore, when the gusset bag is manufactured by the conventional two-piece manufacturing method, the corner bottoms are located at both ends of the width of the belt-like film. Therefore, in order to take two gusset bags, it is necessary to install two apparatuses for disposing the bottom film at both ends of the width of the belt-like film. Cannot be rationalized.

  In the manufacturing method of the gusset bag described in Patent Literature 1 and Patent Literature 2, a substantially cylindrical lateral gusset forming material that forms the lateral gusset portion of the gusset bag is provided, and the lateral gusset molding material is formed of two upper and lower belt-like films. Means arranged so as to be orthogonal to the longitudinal direction between them was employed. However, when the horizontal gusset molding material is transported from the lateral direction with respect to the transport direction of the belt-like film, positional deviation such as tilting of the horizontal gusset molding material during transportation is likely to occur. Therefore, in order to transport the horizontal gusset molding material to an accurate position by the conventional method for producing a gusset bag, it is necessary to slow the transport speed of the belt-like film.

  Therefore, in order to take two gusset bags, when a horizontal gusset forming material having a length twice the normal length is transported from the lateral direction, it is necessary to further reduce the belt film transport speed. As a result, the manufacturing time has become extremely slow, and rationalization by taking two gusset bags has become more difficult.

  Furthermore, various types of gusset bags having flaps, grips, or chucks at the openings are provided. However, in the conventional two-piece manufacturing method, since the bag is manufactured with the opening portions facing each other, it is impossible to form these flaps, handles, etc. into the facing opening portions as necessary. It was.

  On the other hand, when two gusset bags provided with a partition part as described in Patent Document 3 and Patent Document 4 are taken, the manufacturing process must be further complicated. That is, it is necessary to accurately bond the partition part and the horizontal gusset part to the bottom part and the front and back surfaces. Accordingly, it has been extremely difficult to produce two gusset bags provided with a partition.

  Therefore, the present invention has been created to solve the above-mentioned problems, and it is possible to take two gusset bags with a partition portion, and simultaneously form a flap, a handle, and the like as necessary. An object of the present invention is to provide a manufacturing method and a manufacturing apparatus of a gusset bag with a partition portion that can be used.

In order to achieve the above-mentioned object, the first means in the present invention is to use a lateral gusset molding material 3 in which a strip film made of synthetic resin is folded into a flat tube shape to form the lateral gusset portion 13 of the gusset bag 10. The horizontal gusset molding material 3 is arranged so as to be orthogonal between the longitudinal direction of the belt-like surface film 1 that forms the front body portion 11 of the gusset bag 10 and the belt-like back surface film 2 that forms the back body portion 12. Lateral gusset forming means 100;
A partition forming means 200 for arranging a partition forming material 4 arranged along the depth of the corner bottom 14 and dividing the finished width of the corner bottom 14;
A bottom forming means 300 for arranging a belt-like bottom film 5 forming the square bottom 14 of the gusset bag 10 at the bottom;
A synthetic resin having a joining means 400 for joining the horizontal gusset molding material 3 and the partition molding material 4 to the front film 1 and the back film 2 and cutting the front film 1 and the back film 2 along the outline of the gusset bag 10. In the manufacturing method of the gusset bag,
The lateral gusset forming means 100 is provided with a lateral gusset forming material 3 having a length twice that of the lateral gusset portion 13 of the gusset bag 10 to be manufactured, and has a width that is twice the height of the gusset bag 10. The process of providing the surface film 1 and the back film 2 and temporarily fixing the horizontal gusset molding material 3 and the back film 2 and the length of the horizontal gusset molding material 3 disposed between the surface film 1 and the back film 2 are halved. And a step of cutting the horizontal gusset molding material 3 together with the surface film 1,
The partition forming means 200 is provided with the partition forming material 4 having a length twice that of the partition 15 and is temporarily attached to the back film 2 in a state in which the partition forming material 4 is folded in the longitudinal direction. A step of stopping, and a step of cutting the horizontal gusset molding material 3 together with the surface film 1 so that the length of the partition molding material 4 arranged between the surface film 1 and the back film 2 is divided into two parts,
The bottom forming means 300 opens the respective cutting openings 3A of the lateral gusset molding material 3 and folds the bottom surface portion 3B of the lateral gusset molding material 3 located at the bottom of the gusset bag 10, respectively.
Each cutting opening 4A of the middle partition molding material 4 is opened, and the bottom surface portion 4B of the middle partition molding material 4 located at the bottom of the gusset bag 10 is folded back, and each bottom surface portion 3B of the horizontal gusset molding material 3 and the middle partition molding material 4 is folded. And 4B, after bonding the bottom film 5 of one sheet, the process of closing each folded back bottom surface portion 3B, 4B,
The joining means 400 includes a step of cutting the front film 1 and the back film 2 along the outlines of the two gusset bags 10 with the square bottom portions 14 facing each other.

  The second means is that the bottom gusset forming material 300 opens the cut end 1A of the surface film 1 divided in half from the longitudinal central portion of the horizontal gusset forming material 3 in the width end direction. 3, the step of exposing the bottom 3 </ b> B of the horizontal gusset molding 3 located at the bottom of the gusset bag 10, and the surface film 1 bisected from the longitudinal center of the partition molding 4 Opening the cut end portion 1A toward the width end portion to open the cut opening 4A of the partition forming material 4 and exposing the bottom surface portion 4B of the partition forming material 4 located at the bottom of the gusset bag 10; It is a manufacturing method provided with.

  A third means is a step of forming the header 16 and the flap 17 at the position of the opening of the pair of gusset bags 10 by folding back the extending member 2A extended from both width ends of the back film 2 in the joining means 400. The header 16 and the flap 17 are provided in the opening of each gusset bag 10.

  The fourth means is that, in the joining means 400, a pair of joining films 7 and a pair of handbags 18 arranged between the front film 1 and the back film 2 are provided for each opening of the pair of gusset bags 10. It is set as the manufacturing method which has the process joined to a position and provides the handbag 18 in the opening part of each gusset bag 10. FIG.

  A fifth means joins a pair of reinforcing films 8 arranged between the front film 1 and the back film 2 at the positions of the openings of the pair of gusset bags 10 in the joining means 400, The manufacturing method includes a step of opening a hand hole 18 </ b> A penetrating the reinforcing film 8, and the hand bag 18 is provided in the opening of each gusset bag 10.

  A sixth means is a step of joining the band 9 for chuck disposed between the front film 1 and the back film 2 to the position of each opening of the pair of gusset bags 10 by the joining means 400. And a sealing chuck 19 is provided at the opening of each gusset bag 10.

  The seventh means is provided with a horizontal gusset molding material 3 for forming the horizontal gusset portion 13 by folding a belt-like film made of a synthetic resin into a flat tube shape, and an intermediate partition molding material 4 for forming the partition divider 15. The horizontal gusset molding material 3 and the partition molding material 4 are formed so as to be orthogonal to the longitudinal direction between the belt-like surface film 1 forming the front drum portion 11 and the belt-like back film 2 forming the back drum portion 12. The bottom film 5 forming the corner bottom portion 14 is disposed at the bottom portion, the horizontal gusset molding material 3, the middle partition molding material 4 and the bottom film 5 are joined to the surface film 1 and the back film 2, and the surface film 1 and In the synthetic resin gusset bag manufacturing apparatus configured to cut the back film 2 along the outline of the gusset bag 10, the front film 1 and the back film 2 are moved along the longitudinal direction and manufactured. Gusset bag The horizontal gusset forming material 3 having a length twice that of the 0 horizontal gusset portion 13 and the partition forming material 4 having a length twice that of the partition 15 are cut, and the horizontal gusset forming material 3 and the partition are cut. A molding material arrangement mechanism 30 for placing the molding material 4 on the back film 2, a back surface heating sealing mechanism 40 for temporarily bonding the horizontal gusset molding material 3 and the partition molding material 4 to the back film 2, and a lateral gusset A surface heating seal mechanism 50 that temporarily bonds the surface film 1 onto the molding material 3 and the partition molding material 4, and a surface film 1 that is divided from the longitudinal center of the horizontal gusset molding material 3 and the partition molding material 4. By opening the cut end of the gusset bag 10 in the width direction, the cut opening 3A of the horizontal gusset molding material 3 and the cut opening 4A of the partition molding material 4 are opened, and the bottom portion 3B of the horizontal gusset molding material 3 located at the bottom of the gusset bag And the bottom portion exposing mechanism 6 that folds back the cutting opening 4A of the partition molding material 4 respectively. The bottom film 5 is bonded to the bottom surface portion 3B of the horizontal gusset molding material 3 and the bottom surface portion 4B of the partition molding material 4, and the bottom surface portions 3B and 4B are folded together with the bonded bottom film 5. The bottom seal mechanism 70 having a closing tool 71 configured to close the bottom gusset, the horizontal gusset molding 3, the partition molding 4 and the bottom film 5 are joined to the surface film 1 and the back film 2, and the surface film 1 and It is set as the manufacturing apparatus provided with the joining mechanism 80 which cut | disconnects the back surface film 2 along the outline of the two gusset bags 10 which the square bottom part 14 opposed.

  The eighth means includes a cutter 31 for cutting the predetermined length of the horizontal gusset molding material 3 and the partition molding material 4 above the back film 2 in the molding material arrangement mechanism 30, and a predetermined length of the horizontal gusset. Let it be set as the manufacturing apparatus provided with the moving apparatus 32 which installs the molding material 3 and the partition molding material 4 on the back film 2 from the upper direction of the back film 2. FIG.

  9th means WHEREIN: The said bottom part exposure mechanism 60 is the cutter 61 which bisects the horizontal gusset molding material 3 with the surface film 1 along the longitudinal direction of the surface film 1, and the cutting | disconnection edge part 1A of the bisected surface film 1 On the horizontal gusset molding material 3, and a widening roller 62 that opens the cutting opening 3 </ b> A of the horizontal gusset molding material 3 temporarily fixed to the surface film 1 and the cutting opening 4 </ b> A of the partition molding material 4. A manufacturing apparatus including a folding plate 63 that forms a bottom surface portion 3B that is located at the bottom of the gusset bag 10 by contacting the side surfaces of the cutting port 3A of the folded gusset molding material 3 and the cutting port 4A of the partition molding material 4. And

  In the tenth means, the feeding mechanism 20 includes a sloped portion 90 that lifts diagonally upward and returns to the horizontal again while the front film 1 and the back film 2 are horizontally moved along the longitudinal direction. A part of the ejection mechanism 60 and the bottom seal mechanism 70 is a manufacturing apparatus disposed in the gradient portion 90.

  As in the manufacturing method according to claim 1, by providing the horizontal gusset forming means 100, the bottom part forming means 300, and the joining means 400, it is possible to realize two gusset bags 10 with the partition part 15. It was.

  By providing the bottom forming means 300 of claim 2, the gusset bag 10 with the partition 15 was successfully molded at the same time. As a result, two pieces of the gusset bag 10 with the partition 15 can be rationally taken.

  According to the joining means 400 of the third aspect, two gusset bags 10 with the partition portion 15 including the header 16 and the flap 17 can be taken.

  According to the joining means 400 of the fourth aspect, it is possible to take two gusset bags 10 with the partition part 15 with the handbag 18.

  According to the joining means 400 of the fifth aspect, it is possible to take two gusset bags 10 with the partitioning portion 15 provided with the hand carrying holes 18A.

  According to the joining means 400 of the sixth aspect, two gusset bags 10 with the partition portion 15 provided with the sealing chuck 19 can be taken.

  As in the manufacturing apparatus according to claim 7, the horizontal gusset molding material 3 and the partition molding material 4 having a double length are cut by the molding material arrangement mechanism 30 to form the horizontal gusset molding material 3 and the partition molding. The material 4 can be placed on the back film 2. Further, the bottom portion 3B of the horizontal gusset molding material 3 located at the bottom of the gusset bag 10 can be folded back by the bottom portion display mechanism 60, and the bottom portion 3B of the horizontal gusset molding material 3 can be folded by the bottom seal mechanism 70. While adhering the film 5, it became possible to close the bottom surface portion 3 </ b> B that was folded back together with the adhered bottom film 5. And the two gusset bags 10 with the partition part 15 can be simultaneously manufactured by the joining mechanism 80.

  According to the molding material arrangement mechanism 30 of the eighth aspect, the horizontal gusset molding material 3 and the partition molding material 4 having a predetermined length are cut above the back film 2, and the lateral gusset molding material 3 and the partition molding material 4 are cut. Can be installed on the back film 2 from above the back film 2. As a result, it became possible to continuously form the gusset bag 10 with a partition. Further, as in the case where the horizontal gusset forming material is conveyed from the lateral direction with respect to the belt film conveying direction as in the prior art, the misalignment such as the inclination of the horizontal gusset forming material is eliminated, and it is formed for two pieces Even the horizontal gusset forming material 3 having twice the length can be installed at a very accurate position. As a result, since it is possible to install the horizontal gusset molding material 3 without slowing down the conveying speed of the back film 2 as in the prior art, the production efficiency of the gusset bag can be improved.

  The cut end portion 1A of the bifurcated surface film 1 is opened by the bottom expression mechanism 60 according to claim 9, and the cut opening 3A of the horizontal gusset molding material 3 temporarily fixed to the surface film 1 and the partition molding material 4 The bottom opening 3 </ b> B located at the bottom of the gusset bag 10 can be formed.

  As in the tenth aspect, according to the gradient portion 90 of the feed mechanism 20, even when the transport distance of the surface film 1 and the like by the feed mechanism 20 is increased, the transport distance can be shortened through the gradient portion 90. Moreover, this gradient part 90 is suitable also as a position which confirms an important process.

Schematic which shows one Example of this invention manufacturing method. The schematic perspective view which shows one Example of this invention manufacturing apparatus. The schematic plan view which shows the horizontal gusset molding material arrangement | positioning mechanism of this invention manufacturing apparatus. Schematic which shows the other Example of this invention manufacturing method. Schematic which shows one Example of the bottom part sealing mechanism of this invention manufacturing apparatus. The perspective view which shows one Example of the gusset bag shape | molded by this invention manufacturing apparatus. Schematic which shows the other Example of the bottom part sealing mechanism of this invention manufacturing apparatus. The perspective view which shows the other Example of the gusset bag shape | molded with this invention manufacturing apparatus. Schematic which shows the other Example of the bottom part sealing mechanism of this invention manufacturing apparatus. The perspective view which shows the other Example of the gusset bag shape | molded with this invention manufacturing apparatus. Schematic which shows the other Example of the bottom part sealing mechanism of this invention manufacturing apparatus. The perspective view which shows the other Example of the gusset bag shape | molded with this invention manufacturing apparatus. Schematic which shows the other Example of the bottom part sealing mechanism of this invention manufacturing apparatus. The perspective view which shows the other Example of the gusset bag shape | molded with this invention manufacturing apparatus. The perspective view which shows the other Example of the gusset bag shape | molded with this invention manufacturing apparatus. The perspective view which shows the other Example of the gusset bag shape | molded with this invention manufacturing apparatus.

  According to the present invention, it is possible to efficiently take two gusset bags with a partition made of synthetic resin, and it is possible to simultaneously mold a flap, a handle, or the like in the openings of the two gusset bags. The initial objectives such as were achieved.

  As the material of the synthetic resin gusset bag of the present invention, for example, any synthetic resin material such as a film material obtained by laminating a nylon film on a polypropylene film, an LDPE film, an HDPE film, a PET film, or an aluminum vapor deposition film can be used. It is.

  The gusset bag 10 of the present invention is formed of a synthetic resin material, and includes a front barrel portion 11, a back barrel portion 12, a horizontal gusset portion 13, a square bottom portion 14, and a partition portion 15 (FIGS. 6, 8, and 10). FIG. 12 and FIG. 14).

  The production method of the present invention particularly has the following four means. That is, the horizontal gusset forming means 100, the partition forming means 200, the bottom forming means 300, and the joining means 400 (see FIG. 1).

  The horizontal gusset forming means 100 is a means from installing the horizontal gusset molding material 3 on the back film 2 to dividing the horizontal gusset molding material 3 into two. In other words, the belt-like surface film 1 that forms the front body portion 11 of the gusset bag 10 and the belt-like back surface film 2 that forms the back body portion 12 overlap each other (see FIG. 1). On the other hand, the horizontal gusset molding material 3 is a film member in which a strip-like film made of a synthetic resin is folded into a flat tube shape and forms the horizontal gusset portion 13 of the gusset bag 10.

  In the present invention, in order to take two gusset bags 10, a horizontal gusset forming material 3 having a length approximately twice as long as the horizontal gusset portion 13 of the gusset bag 10 to be manufactured is provided (FIGS. 1, 4, and 5). FIG. 7, FIG. 9, FIG. 11, FIG. 13). Similarly, the width | variety of the surface film 1 and the back surface film 2 is formed in the width | variety of at least 2 times the height of the gusset bag 10 to manufacture. And the horizontal gusset molding material 3 which has double length between the surface film 1 and the back surface film 2 is arrange | positioned sideways (refer FIG. 1).

  In this horizontal gusset forming means 100, first, the horizontal gusset forming material 3 is placed on the back film 2 from above the back film 2 (see FIG. 2). Next, the horizontal gusset molding material 3 and the back film 2 are temporarily fixed. And after arrange | positioning the surface film 1 on the horizontal gusset molding material 3, it temporarily fixes so that the longitudinal center part of the horizontal gusset molding material 3 and the surface film 1 may adhere | attach. Then, the horizontal gusset molding material 3 is cut together with the surface film 1 from the longitudinal center of the horizontal gusset molding material 3 so that the length of the horizontal gusset molding material 3 is divided into two. In the illustrated example, the front film 1 and the horizontal gusset molding material 3 are divided into two halves together with the back film 2. It is also possible to bisect the back film 2.

  Similarly to the horizontal gusset forming means 100, the middle partition forming means 200 is a means from installing the middle partition molding material 4 on the back film 2 to dividing the horizontal gusset molding material 3 into two (see FIG. 1). The partition molding material 4 is a film member that is formed by folding a synthetic resin belt-like film in a double fold along the longitudinal direction, and forms the partition 15 of the gusset bag 10.

  In the present invention, in order to take two gusset bags 10, a partition molding material 4 having a length approximately twice as long as the partition 15 of the gusset bag 10 to be manufactured is provided (FIGS. 1, 4, 5). FIG. 7, FIG. 9, FIG. 11, FIG. 13). And the partition forming material 4 which has double length between the surface film 1 and the back surface film 2 is arrange | positioned sideways (refer FIG. 1).

  In FIG. 1, one partition molding material 4 is arranged, but two partition molding materials 4 can be arranged (see FIG. 4). Thus, the number and position of the partition molding material 4 or the length of the partition molding material 4 can be arbitrarily set.

  In this partition forming means 200, first, the partition forming material 4 is placed on the back film 2 from above the back film 2 (see FIG. 2). Next, the partition molding material 4 and the back film 2 are temporarily fixed. And after arrange | positioning the surface film 1 on the middle partition molding material 4, it fixes temporarily so that the longitudinal center part of the middle partition molding material 4 and the surface film 1 may adhere | attach. Then, the partition molding material 4 is cut together with the surface film 1 from the longitudinal center of the partition molding material 4 so that the length of the partition molding material 4 is divided into two.

  The bottom part forming means 300 is a means for arranging the belt-like bottom film 5 forming the square bottom part 14 of the gusset bag 10 at the position of the bottom part (see FIG. 1). First, each cutting opening 3A of the horizontal gusset molding material 3 is opened, and the bottom portion 3B of the horizontal gusset molding material 3 located at the bottom of the gusset bag 10 is folded back (see FIG. 4). At this time, by opening the cut end portion 1A of the surface film 1 divided in two from the longitudinal center portion of the horizontal gusset molding material 3 in the width end portion direction, the cut opening 3A of the horizontal gusset molding material 3 is opened, and the gusset bag 10 The bottom face part 3B of the horizontal gusset molding material 3 located at the bottom part of the sheet is exposed.

  Subsequently, each cutting opening 4A of the partition forming material 4 is opened, and the bottom surface portion 4B of the partition forming material 4 located at the bottom of the gusset bag 10 is folded back (see FIG. 1). Also at this time, by opening the cut end portion 1A of the surface film 1 divided into two from the longitudinal central portion of the partition molding material 4 in the width end portion direction, the cut port 4A of the partition partition molding material 4 is opened, and the gusset bag The bottom surface portion 4B of the partition molding material 4 located at the bottom of 10 is exposed. Next, the bottom film 5 of 1 sheet is adhere | attached on each bottom face part 3B, 4B. Finally, it is a step of closing the folded bottom surfaces 3B and 4B together with the bottom film 5.

  The joining means 400 joins the front film 1, the back film 2, the horizontal gusset molding material 3, the partition molding material 4, and the bottom film 5, and then cuts the two gusset bags 10 by cutting along the outline of the gusset bag 10. Is a means for simultaneously molding (see FIG. 1). At this time, the partition molding material 4 is joined to the surface film 1 and the back film 2 along the two overlapping side edges. The bottom film 5 is joined to the bottom portions of the surface film 1, the back film 2, the horizontal gusset molding material 3 and the partition molding material 4. Then, the front film 1 and the back film 2 are cut along the outline of the gusset bag 10. At this time, the two bottom gusset bags 10 are in a state where the corner bottom portions 14 are opposed to each other. As a result, the openings of the gusset bag 10 are formed so as to face outward. Therefore, by slightly changing the joining means 400, the header 16, the flap 17, the handbag 18, the sealing chuck 19 and the like can be provided in the opening of the gusset bag 10 as necessary.

  5 to 8 show a process of forming the header 16 and the flap 17 at the position of the opening of the pair of gusset bags 10 in the joining means 400. That is, it is a step of forming the header 16 and the flap 17 at the position of the opening by folding back the extending member 2A extended from both ends of the width of the back film 2 (see FIGS. 5 and 7). A header 16 and a flap 17 are formed on the gusset bag 10 formed by such a process (see FIGS. 6 and 8). In the illustrated example, when the flap 17 is folded, a long adhesive tape 17A is disposed inside the flap 17 (see FIGS. 5 and 7). And when the front film 1 and the back film 2 are cut | disconnected and the two gusset bags 10 are formed, the gusset bag 10 with the flap 17 is formed (refer FIG. 6, FIG. 8). As shown in FIG. 5, when one partition forming material 4 is arranged, one partition 15 is formed in the gusset bag 10 (see FIG. 6). Further, as shown in FIG. 7, when the two partition forming members 4 are arranged, two partition portions 15 are formed in the gusset bag 10 (see FIG. 8).

  9 and 10 show a process of forming the handbag 18 at the position of the opening of the pair of gusset bags 10 in the joining means 400. FIG. That is, it is a step of arranging the pair of bonding films 7 between the front film 1 and the back film 2 and arranging the pair of handbags 18 to form the handbags 18 at the positions of the openings (see FIG. 9). In the illustrated example, a pair of bonding films 7 is arranged on the surface where the surface film 1 and the back film 2 are directly polymerized, and a handbag 18 is interposed between the bonding film 7, the surface film 1 and the back film 2. The handbag 18 is welded to the front film 1 and the back film 2 together with the bonding film 7. And if the front side surface 1 and the back surface film 2 are cut | disconnected, the gusset bag 10 with the handbag 18 will be formed (refer FIG. 10).

  FIGS. 11 to 14 show a process of forming the hand hole 18 </ b> A at the position of the opening of the pair of gusset bags 10 in the joining means 400. In the example of illustration, a pair of reinforcement film 7 is arrange | positioned between the surface film 1 and the back surface film 2, and it joins to the position of the opening part of a pair of gusset bag 10 (refer FIG. 11, FIG. 13). Further, it is a step of opening the hand-carrying hole 18A at the position of the opening of the portion reinforced by the reinforcing film 7. And if the front side surface 1 and the back surface film 2 are cut | disconnected, the gusset bag 10 provided with 18 A of handbag holes will be formed (refer FIG. 13, FIG. 14). As shown in FIG. 11, when one partition molding material 4 is arranged, one partition 15 is formed in the gusset bag 10 (see FIG. 12). Further, as shown in FIG. 13, when the two partition forming members 4 are arranged, two partition portions 15 are formed in the gusset bag 10 (see FIG. 14).

  15 and 16 show a state in which the direction of the partition 15 formed in the gusset bag 10 is changed. For example, in FIG. 15, when the two partition portions 15 are formed in the gusset bag 10, the space S partitioned by the horizontal gusset portion 13 becomes narrower if it is directed rightward. Therefore, as shown in FIG. 16, the space S partitioned by the partition part 15 is widened by turning the partition part 15 leftward. In this way, by changing the position of the partition 15, it is easy to open and take out from the space S.

  Next, the manufacturing apparatus of the present invention will be described. The manufacturing apparatus of the present invention is an apparatus for performing the manufacturing method. That is, the basic configuration of the device of the present invention that takes two synthetic resin gusset bags 10 includes a feed mechanism 20, a molding material arrangement mechanism 30, a back surface heating seal mechanism 40, a surface heating seal mechanism 50, a bottom portion exposing mechanism 60, A bottom seal mechanism 70 and a joining mechanism 80 are provided (see FIGS. 2 and 3).

  The feed mechanism 20 is a mechanism that moves the front film 1 and the back film 2 along the longitudinal direction (see FIG. 2). In the illustrated example, a feeding mechanism 20 using a plurality of rollers 21 is shown. The feeding mechanism 20 includes a slope portion 90 that is lifted obliquely upward and returned to the horizontal again while the front film 1 and the back film 2 are horizontally moved along the longitudinal direction. Then, a part of a bottom part expression mechanism 60 and a bottom part seal mechanism 70 described later are arranged in the gradient part 90.

  The molding material arrangement | positioning mechanism 30 is a mechanism which installs the horizontal gusset molding material 3 and the partition molding material 4 on the back surface film 2 (refer FIG. 3). The illustrated molding material arrangement mechanism 30 uses two mechanisms, one that arranges the horizontal gusset molding material 3 and one that arranges the partition molding material 4.

  These molding material arrangement mechanisms 30 are located above the back film 2 and have a horizontal gusset molding material 3 that is twice as long as the horizontal gusset portion 13 and an intermediate partition molding material 4 that is twice as long as the middle partition portion 15. Are respectively provided. One cutter 31 is folded into a substantially cylindrical shape by a moving device 32 that conveys the film material for the horizontal gusset 13, and then cut into a predetermined length to form the horizontal gusset molding 3. The other cutter 31 is folded into a substantially cylindrical shape by a moving device 32 that conveys the film material for the partition 15, and then cut into a predetermined length to form the partition molding 4.

  Further, when the driving belt 34 moves in a state where the horizontal gusset molding material 3 and the partition molding material 4 are gripped by the gripping tools 33, the horizontal gusset molding material 3 and the partition molding material together with the gripping tools 33. 4 moves along the conveyance rail 35 and places the horizontal gusset molding material 3 and the partition molding material 4 on the back film 2 from above the back film 2. The gripping tool 33 in the illustrated example shows a configuration in which the horizontal gusset molding material 3 is sucked by suction air, but the configuration of the gripping tool 33 can be arbitrarily changed, such as another cam system.

  The back surface heat sealing mechanism 40 is a mechanism for temporarily adhering the horizontal gusset molding material 3 and the partition molding material 4 onto the back film 2. In the illustrated example, the horizontal gusset molding material 3 and the partition molding material 4 are temporarily bonded to the back film 2 by applying a sealing hot plate 41 from the lower surface side of the back film 2 (see FIG. 2).

  The surface heating sealing mechanism 50 is a mechanism for temporarily bonding the surface film 1 on the horizontal gusset molding material 3 and the partition molding material 4. In the illustrated example, after the surface film 1 is disposed on the horizontal gusset molding material 3 and the partition molding material 4 that are temporarily bonded onto the back film 2, a sealing hot plate 51 is provided from the upper surface side of the surface film 1. The longitudinal center parts of the horizontal gusset molding material 3 and the partition molding material 4 and the surface film 1 are temporarily bonded to each other (see FIG. 2).

  The bottom part expression mechanism 60 is a mechanism that folds back the bottom surface parts 3B and 4B of the horizontal gusset molding material 3 and the partition molding material 4 (see FIG. 2). In the bottom portion exposing mechanism 60, a cutter 61 is provided that bisects the horizontal gusset molding material 3 and the partition molding material 4 along the longitudinal direction of the front film 1 and the back film 2. And the spreading roller 62 which contacts the cut end part 1A of the divided surface film 1 is arrange | positioned, and the cut end part 1A of the surface film 1 is opened with this spreading roller 62. Then, the cutting port 3A of the horizontal gusset molding material 3 temporarily fixed to the surface film 1 and the cutting port 4A of the partition molding material 4 are also opened together with the cutting end 1A (see FIG. 1).

  Further, a folding plate 63 that contacts the side surface of the cutting opening 3A of the horizontal gusset molding material 3 and the side surface of the cutting port 4A of the partition molding material 4 is disposed (see FIG. 1). The folding plate 63 is formed by forming the bottom 3 </ b> B located at the bottom of the gusset bag 10 by folding the cut opening 3 </ b> A of the horizontal gusset 3 onto the horizontal gusset 3. This is a member that forms the bottom surface portion 4B located at the bottom of the gusset bag 10 by folding the cut opening 4A onto the partition forming material 4. The folding plate 63 in the illustrated example has a configuration of a pair of plates that sandwich the cutting openings 3 </ b> A and 4 </ b> A spread by the spreading roller 62 from above and below.

  The portion where the folding plate 63 of the bottom portion exposing mechanism 60 is disposed is disposed on the gradient portion 90 of the feeding mechanism 20 (see FIG. 2). When a part of the bottom portion exposure mechanism 60 is disposed at such an inclined position, the cut end 1A of the surface film 1, the cut opening 3A of the horizontal gusset molding material 3, and the cut opening 4A of the partition molding material 4 are expanded. There is also an advantage that the expansion process is easy to confirm.

  The bottom seal mechanism 70 is a mechanism for temporarily bonding one bottom film 5 to each bottom surface portion 3B, 4B of the expanded horizontal gusset molding material 3 and the partition molding material 4 (see FIG. 2). In the example of illustration, it adhere | attaches with the hot plate 72 for temporary fixing. At this time, the bottom film 5 is bonded to a portion where the cutting port 3A of the horizontal gusset molding material 3 and the cutting port 4A of the partition molding material 4 are linear. Further, the bottom seal mechanism 70 is provided with a closing tool 71. The closing tool 71 is configured to close the bottom surface portions 3B and 4B folded back together with the bonded bottom film 5 (see FIG. 1). In the illustrated example, a plate-like closing tool 71 having an opening having a substantially C shape is provided. Then, by bringing the cut end portion 1A folded of the surface film 1 into contact with the substantially C-shaped opening, the cut opening 3A and the partition of the horizontal gusset forming material 3 folded together with the surface film 1 The cutting port 4 </ b> A of the molding material 4 is configured to be closed together with the bottom film 5.

  Further, the closing tool 71 of the bottom seal mechanism 70 is also disposed on the gradient portion 90 of the feed mechanism 20 in the same manner as the bottom expression mechanism 60 (see FIG. 2). When the closing tool 71 is arranged at such an inclined position, the folded cut end 1A and the cut openings 3A, 4A can be easily returned to the original position, and there is an advantage that the process of sealing the bottom can be easily confirmed.

  The joining mechanism 80 is a mechanism that takes two gusset bags 10 by joining the front film 1 and the back film 2 and then cutting them (see FIG. 2). The joining mechanism 80 includes two vertical sealing hot plates 81 and one horizontal sealing hot plate 82. Then, the horizontal gusset molding material 3 and the partition molding material 4 are joined to the surface film 1 and the back film 2 by the vertical sealing hot plate 81, and the bottom sealing film 5 is bonded to the bottom film 5 by the horizontal sealing hot plate 82. The bottom part of the surface film 1, the back film 2, the horizontal gusset molding material 3, and the partition molding material 4 is joined. Furthermore, when the front film 1 and the back film 2 are cut along the contours of the two gusset bags 10 with the square bottom portions 14 facing each other simultaneously or after the bonding, the two gusset bags 10 are formed simultaneously. It is.

  The joining mechanism 80 shown in FIGS. 5 and 7 is a mechanism for forming the header 16 and the flap 17 at the position of the opening of the gusset bag 10. That is, in order to fold back the extension member 2A extended from both width ends of the back film 2 to form the header 16 and the flap 17 at the position of the opening, a reinforcing hot plate 83 for welding the folded portion of the header 16 is provided. Yes. Further, the welded header 16 is provided with a heating pin 84 that opens the locking hole 16A. As shown in FIG. 5, when one partition forming material 4 is arranged, one partition 15 is formed in the gusset bag 10 (see FIG. 6). Further, as shown in FIG. 7, when the two partition forming members 4 are arranged, two partition portions 15 are formed in the gusset bag 10 (see FIG. 8).

  In the joining mechanism 80 shown in FIG. 9, a handbag mounting device 85 for arranging a pair of handbags 18 is disposed between the front film 1 and the back film 2. This handbag mounting device 85 cuts a sheet to form a pair of handbags 18 and is arranged between the front film 1 and the back film 2. Further, a reinforcing hot plate 83 for bonding the pair of bonding films 7 is provided. Then, a pair of bonding films 7 are arranged on the surface on which the front film 1 and the back film 2 are directly polymerized, and the handbags 18 together with the bonding films 7 are put together with the bonding films 7 on the surface. It welds to the film 1 and the back film 2 (refer FIG. 10).

  A joining mechanism 80 shown in FIGS. 11 and 13 is a mechanism that forms a hand-hole 18 </ b> A at the position of the opening of the gusset bag 10. That is, a pair of reinforcing films 8 disposed between the front film 1 and the back film 2 are welded by the reinforcing hot plate 83 to reinforce the position of the opening of the gusset bag 10. Further, a handbag hole 18A is opened by a hot plate for opening 87 in a portion reinforced by the reinforcing film 8, and a gusset bag 10 having the handbag hole 18A is formed. As shown in FIG. 11, when one partition molding material 4 is arranged, one partition 15 is formed in the gusset bag 10 (see FIG. 12). Further, as shown in FIG. 13, when the two partition forming members 4 are arranged, two partition portions 15 are formed in the gusset bag 10 (see FIG. 14).

  The configuration of the device of the present invention is not limited to the illustration. Furthermore, the design can be freely changed without changing the gist of the present invention.

S space 1 surface film 1A cutting edge 2 back film 2A extension member 3 horizontal gusset molding material 3A cutting opening 3B bottom surface part 4 partitioning molding material 5 bottom film 6 handpiece 7 bonding film 8 reinforcing film 9 zipper band 10 gusset Bag 11 Front body portion 12 Back surface portion 13 Horizontal gusset portion 14 Square bottom portion 15 Partition portion 16 Header 17 Flap 18 Hand carry 18A Hand carry hole 19 Sealing chuck 20 Feed mechanism 21 Roller 30 Molding material arrangement mechanism 31 Feed roller 32 Cutter 33 Grasping tool 34 Drive belt 35 Moving rail 40 Back surface heating seal mechanism 41 Heating plate for sealing 50 Surface heating sealing mechanism 51 Heating plate for sealing 60 Bottom exposing mechanism 61 Cutter 62 Spreading roller 63 Folding plate 70 Bottom sealing mechanism 71 Closure 72 Temporary Heating plate for fixing 80 Structure 81 Heat plate for vertical seal 82 Heat plate for horizontal seal 83 Heat plate for reinforcement 84 Heating pin 85 Hand-mounted device 86 Heat plate for chuck 87 Heat plate for opening 90 Gradient portion 100 Horizontal gusset forming means 200 Middle partition forming means 300 Bottom Forming means 400 Joining means

Claims (10)

A belt-shaped surface film and a back body part that form a front body part of a gusset bag by providing a lateral gusset molding material that forms a lateral gusset part of a gusset bag by folding a strip film made of synthetic resin into a flat tube shape Horizontal gusset forming means for arranging the horizontal gusset forming material so as to be orthogonal between the longitudinal direction of the belt-shaped back film forming
A partition forming means for arranging a partition forming material that is arranged along the depth of the corner bottom and divides the finished width of the corner bottom;
Bottom forming means for arranging a strip-like bottom film forming the square bottom of the gusset bag on the bottom;
In the method of manufacturing a synthetic resin gusset bag having a joining means for joining the horizontal gusset molding material and the partition molding material to the front film and the back film, and cutting the front film and the back film along the outline of the gusset bag,
The lateral gusset forming means is provided with a lateral gusset forming material having a length twice that of the lateral gusset portion of the gusset bag to be manufactured, and a surface film and a back film having a width that is twice the height of the gusset bag. The horizontal gusset molding material and the back film are temporarily fixed, and the length of the horizontal gusset molding material arranged between the front film and the back film is divided into two parts. A step of cutting,
The partition forming means provides a partition forming material having a length twice that of the partition portion, and temporarily fixes the partition forming material to the back film in a state of being folded in the longitudinal direction; A step of cutting the horizontal gusset molding material together with the surface film so that the length of the partition molding material arranged between the surface film and the back film is bisected,
The bottom forming means opens each cut portion of the horizontal gusset molding material and folds back the bottom portion of the horizontal gusset molding material located at the bottom of the gusset bag, and opens each cutting port of the partition molding material to open the bottom portion of the gusset bag. Folding back the bottom part of the partition forming material located at the bottom, bonding one bottom film to each bottom part of the horizontal gusset molding material and the partition forming material, and then closing each folded bottom part,
The said joining means is a manufacturing method of the synthetic resin gusset bag characterized by including the process of cut | disconnecting a surface film and a back surface film along the outline of two gusset bags with which the square bottom faced.   In the bottom forming means, the cut end portion of the surface gusset molding material is opened in the width end portion direction by opening the cut end portion of the surface film divided into two from the longitudinal central portion of the horizontal gusset molding material, and the bottom portion of the gusset bag The step of exposing the bottom surface portion of the horizontal gusset molding material located in the center partition molding by opening the cut end portion of the surface film divided in half from the longitudinal center portion of the partition divider molding material in the width end portion direction A method for producing a synthetic resin gusset bag according to claim 1, further comprising a step of opening a material cutting opening and exposing a bottom surface portion of the partition molding material positioned at the bottom of the gusset bag.   The joining means includes a step of forming a header and a flap at the position of the opening of the pair of gusset bags by folding back an extending member extended from both width ends of the back film, and the header at the opening of each gusset bag And a method for producing a synthetic resin gusset bag according to claim 1.   The bonding means includes a step of bonding a pair of bonding films and a pair of handbags arranged between the front film and the back film at positions of the openings of the pair of gusset bags, and each gusset bag. The manufacturing method of the synthetic resin gusset bag of Claim 1 which provides a handbag in the opening part of this.   In the joining means, a pair of reinforcing films disposed between the front film and the back film are joined to the positions of the openings of the pair of gusset bags, and a hand hole that penetrates the reinforcing film is opened. The manufacturing method of the synthetic resin gusset bag of Claim 1 which has a process and provides a handbag in the opening part of each gusset bag.   The joining means includes a step of joining the band for chuck disposed between the front film and the back film to the position of each opening of the pair of gusset bags, and the opening of each gusset bag. The method for producing a synthetic resin gusset bag according to claim 1, wherein a sealing chuck is provided.   A strip-shaped surface that forms a front barrel by providing a horizontal gusset molding material that forms a horizontal gusset by folding a strip-shaped film made of synthetic resin into a flat tube shape and an intermediate partition molding material that forms a partition. A horizontal gusset molding material and a partition molding material are arranged so as to be orthogonal to the longitudinal direction between the film and a belt-like back film forming a back body portion, and a bottom film forming a square bottom portion is arranged at the bottom portion. A synthetic resin gusset bag manufacturing apparatus configured to join a horizontal gusset molding material, a partition molding material, and a bottom film to a surface film and a back film, and to cut the surface film and the back film along the outline of the gusset bag. , A feed mechanism that moves the front film and the back film along the longitudinal direction, a horizontal gusset forming material that is twice as long as the lateral gusset of the gusset bag to be manufactured, and a length that is twice that of the partition Partitioning The back side which cuts the material and temporarily bonds the horizontal gusset molding material and the partition molding material onto the back film, and the molding material arrangement mechanism for placing the horizontal gusset molding material and the partition molding material on the back film. Heat sealing mechanism, surface heat sealing mechanism for temporarily bonding a surface film on a horizontal gusset molding material and a partition molding material, and a surface film divided into two from the longitudinal center of the horizontal gusset molding material and the partition molding material Open the cutting edge of the horizontal gusset molding material and the cutting edge of the partition molding material by opening the cut end of the gusset bag in the width direction, and cut the bottom gusset molding material and the partition molding material located at the bottom of the gusset bag A bottom expression mechanism that folds the mouth and a bottom gusset forming material, and a bottom film portion that folds the bonded bottom film together with each bottom film. Configured to close The bottom seal mechanism with the horizontal gusset molding material, the partition molding material and the bottom film are joined to the surface film and the back film, and the surface film and the back film are in the outline of the two gusset bags with the corner bottoms facing each other. An apparatus for manufacturing a synthetic resin gusset bag, comprising a joining mechanism for cutting along.   A cutter that cuts a predetermined length of the horizontal gusset molding material and the partition molding material above the back film, and a predetermined length of the horizontal gusset molding material and the partition molding material in the molding material arrangement mechanism. The manufacturing apparatus of the synthetic resin gusset bag of Claim 7 provided with the moving apparatus installed on a back film from above.   The bottom expression mechanism includes a cutter that bisects the horizontal gusset forming material together with the surface film along the longitudinal direction of the surface film, and opens the cut end portion of the bisected surface film and is temporarily secured to the surface film. Apply to the side of the widening roller that opens the gusset molding material and the partition molding material, and the gusset molding material and the partition molding material. The synthetic resin gusset bag manufacturing apparatus according to claim 7, further comprising a folding plate member that forms a bottom surface portion positioned at a bottom portion of the gusset bag.   The feeding mechanism includes a slope portion that is lifted obliquely upward and returned to the horizontal direction while horizontally moving the front film and the back film along the longitudinal direction, and includes a bottom exposing mechanism and a bottom sealing mechanism. 8. The apparatus for manufacturing a synthetic resin gusset bag according to claim 7, wherein the portion is disposed on the slope portion.

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