JP2006240678A - Three-dimensional bag, and manufacturing method and apparatus for the same - Google Patents

Three-dimensional bag, and manufacturing method and apparatus for the same Download PDF

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JP2006240678A
JP2006240678A JP2005059431A JP2005059431A JP2006240678A JP 2006240678 A JP2006240678 A JP 2006240678A JP 2005059431 A JP2005059431 A JP 2005059431A JP 2005059431 A JP2005059431 A JP 2005059431A JP 2006240678 A JP2006240678 A JP 2006240678A
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bag
bag body
dimensional
folding line
rear wall
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JP4802518B2 (en
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Kenichi Masuda
謙一 増田
Shinichi Izumimoto
晋一 泉本
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a three-dimensional bag having an increase capacity and an enhanced self-standing function and to provide a manufacturing method and apparatus for the bag. <P>SOLUTION: When a flat bag body formed by laminating front and back wall sheets (6 and 7) and closing three sides of the front and back wall sheets (6 and 7) is placed in an inflated state, vertical gores (8 and 9) and a bottom gore (10) are formed on both sides of the bag and at the bottom of it respectively, and approximately triangular overlapping parts of the vertical gores (8 and 9) and bottom gore (10) are sealed. With leaving seal lines (12a and 13a), the sealed overlapping parts are cut off. This makes it possible to form a flat bag into a three-dimensional shape to increase its capacity and to allow the bag to support itself. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、立体袋とその製造方法及び装置に関する。   The present invention relates to a three-dimensional bag and a method and apparatus for manufacturing the same.

従来、袋を立体的に形成するには、袋の前後壁を構成するシート間にマチ（襠）片を挿入したり、袋本体を作る素材シートを折り返してマチを形成したりしている（例えば、特許文献１参照。）。   Conventionally, in order to form a bag three-dimensionally, a gusset piece is inserted between sheets constituting the front and rear walls of the bag, or a material sheet that forms the bag body is folded to form a gusset ( For example, see Patent Document 1.)

特開平１−１４１０３号公報Japanese Patent Laid-Open No. 1-14103

従来の立体袋はマチ片を別途用意してシート間に挿入したり、シートを折り返してマチを形成したりするので、袋の部品点数を多く必要とし、袋の構造も複雑化し、高価となる。また、製造工程も煩雑になり、製造装置も専用機が必要になる。   Conventional three-dimensional bags are prepared separately by inserting gusset pieces and inserted between sheets or forming gussets by folding back sheets, which requires a large number of bag parts, complicates the bag structure, and is expensive. . In addition, the manufacturing process becomes complicated, and a dedicated machine is required for the manufacturing apparatus.

従って、本発明は上記問題点を解決する立体袋とその製造方法及び装置を提供することを目的とする。   Accordingly, an object of the present invention is to provide a three-dimensional bag that solves the above problems, and a method and apparatus for manufacturing the same.

上記課題を解決するため、請求項１に係る発明は、前後壁シート（６，７）が重ね合わされ、この前後壁シート（６，７）の三辺が閉じられた扁平な袋体（１ａ，１ｂ，１ｃ，１ｄ）が膨らんだ状態に置かれることで、袋体（１ａ，１ｂ，１ｃ，１ｄ）の両側と底に夫々縦マチ（襠）部（８，９）と底マチ部（１０）が形成され、縦マチ部（８，９）と底マチ部（１０）との略三角形の交差箇所（１２，１３）がシールされ、このシールされた交差箇所（１２，１３）がシール線（１２ａ，１３ａ）を残して切除された立体袋（１）を採用する。   In order to solve the above problems, the invention according to claim 1 is a flat bag body (1a,) in which front and rear wall sheets (6, 7) are overlapped and three sides of the front and rear wall sheets (6, 7) are closed. 1b, 1c, 1d) is placed in an inflated state, so that the vertical gusset (8, 9) and the bottom gusset (10) are formed on both sides and the bottom of the bag (1a, 1b, 1c, 1d), respectively. ) Is formed, the substantially triangular intersection (12, 13) between the vertical gusset (8, 9) and the bottom gusset (10) is sealed, and the sealed intersection (12, 13) is a seal line. The three-dimensional bag (1) excised leaving (12a, 13a) is adopted.

また、請求項２に係る発明は、請求項１に記載の立体袋において、袋体（１ａ，１ｂ，１ｃ，１ｄ）の底部から上方向に伸びる癖折線（１４）が前後壁シート（６，７）に形成された立体袋（１）を採用する。   The invention according to claim 2 is the three-dimensional bag according to claim 1, wherein the folding line (14) extending upward from the bottom of the bag (1a, 1b, 1c, 1d) is provided on the front and rear wall sheets (6, 6). The three-dimensional bag (1) formed in 7) is adopted.

また、請求項３に係る発明は、請求項１又は請求項２に記載の立体袋において、袋体（１ａ，１ｂ，１ｃ，１ｄ）の開放された一辺にジッパー（２）が取り付けられた立体袋（１）を採用する。   The invention according to claim 3 is the three-dimensional bag according to claim 1 or claim 2, wherein the zipper (2) is attached to the opened side of the bag body (1a, 1b, 1c, 1d). Adopt bag (1).

また、請求項４に係る発明は、前後壁シート（６，７）が重ね合わされ、この前後壁シート（６，７）の三辺が閉じられた扁平な袋体（１ａ，１ｂ，１ｃ，１ｄ）を、膨らませて袋体（１ａ，１ｂ，１ｃ，１ｄ）の両側と底に夫々縦マチ（襠）部（８，９）と底マチ部（１０）を形成するマチ形成工程と、膨らんだ袋体（１ａ，１ｂ，１ｃ，１ｄ）における縦マチ部（８，９）と底マチ部（１０）との略三角形の交差箇所（１２，１３）をシールするシール工程と、シールされた交差箇所（１２，１３）をシール線（１２ａ，１３ａ）が残るように切除する切除工程とを包含してなる立体袋の製造方法を採用する。   The invention according to claim 4 is a flat bag body (1a, 1b, 1c, 1d) in which front and rear wall sheets (6, 7) are overlapped and three sides of the front and rear wall sheets (6, 7) are closed. ) And a gusset forming step for forming vertical gusset portions (8, 9) and bottom gusset portions (10) on both sides and bottom of the bag (1a, 1b, 1c, 1d), respectively, A sealing step for sealing a substantially triangular intersection (12, 13) between the vertical gusset (8, 9) and the bottom gusset (10) in the bag (1a, 1b, 1c, 1d), and the sealed intersection A three-dimensional bag manufacturing method including a cutting step of cutting the locations (12, 13) so that the seal wires (12a, 13a) remain is adopted.

また、請求項５に係る発明は、請求項４に記載の立体袋の製造方法において、袋体（１ａ，１ｂ，１ｃ，１ｄ）の底部から上方向に伸びる癖折線（１４）を前後壁シート（６，７）に形成する癖折線形成工程を包含する立体袋の製造方法を採用する。   The invention according to claim 5 is the method for manufacturing a three-dimensional bag according to claim 4, wherein the folding line (14) extending upward from the bottom of the bag (1a, 1b, 1c, 1d) is provided on the front and rear wall sheets. The manufacturing method of the three-dimensional bag including the folding line formation process formed in (6, 7) is employ | adopted.

また、請求項６に係る発明は、請求項４又は請求項５に記載の立体袋の製造方法において、癖折線（１４）を袋体（１ａ，１ｂ，１ｃ，１ｄ）の製袋時に形成する立体袋の製造方法を採用する。   The invention according to claim 6 is the method for manufacturing a three-dimensional bag according to claim 4 or 5, wherein the folding line (14) is formed when the bag body (1a, 1b, 1c, 1d) is made. Adopt the manufacturing method of three-dimensional bag.

また、請求項７に係る発明は、請求項４又は請求項５に記載の立体袋の製造方法において、癖折線（１４）を袋体（１ａ，１ｂ，１ｃ，１ｄ）の膨張後に形成する立体袋の製造方法を採用する。   The invention according to claim 7 is the method for producing a three-dimensional bag according to claim 4 or claim 5, wherein the folding line (14) is formed after the bag body (1a, 1b, 1c, 1d) is expanded. Adopt bag manufacturing method.

また、請求項８に係る発明は、請求項４乃至請求項７のいずれかに記載の立体袋の製造方法において、袋体（１ａ，１ｂ，１ｃ，１ｄ）の開放された一辺にジッパー（２）を取り付けるジッパー取付工程を包含する立体袋の製造方法を採用する。   The invention according to claim 8 is the method for manufacturing a three-dimensional bag according to any one of claims 4 to 7, wherein a zipper (2) is formed on the open side of the bag body (1a, 1b, 1c, 1d). The manufacturing method of the three-dimensional bag including the zipper attachment process which attaches) is employ | adopted.

また、請求項９に係る発明は、前後壁シート（６，７）が重ね合わされ、この前後壁シート（６，７）の三辺が閉じられた扁平な袋体（１ａ，１ｂ，１ｃ，１ｄ）を膨らませて袋体（１ａ，１ｂ，１ｃ，１ｄ）の両側と底に夫々縦マチ部（８，９）と底マチ部（１０）を形成するマチ形成手段（４４）と、膨らんだ袋体（１ａ，１ｂ，１ｃ，１ｄ）における縦マチ部（８，９）と底マチ部（１０）との略三角形の交差箇所（１２，１３）をシールするシール手段（４２）と、シールされた交差箇所（１２，１３）をシール線（１２ａ，１３ａ）が残るように切除する切除手段（４３）とを包含してなる立体袋の製造装置を採用する。   The invention according to claim 9 is a flat bag body (1a, 1b, 1c, 1d) in which front and rear wall sheets (6, 7) are overlapped and three sides of the front and rear wall sheets (6, 7) are closed. ) And a gusset forming means (44) for forming vertical gusset portions (8, 9) and bottom gusset portions (10) on both sides and bottom of the bag body (1a, 1b, 1c, 1d), and a swelled bag Sealing means (42) for sealing a substantially triangular intersection (12, 13) between the vertical gusset (8, 9) and the bottom gusset (10) in the body (1a, 1b, 1c, 1d); A three-dimensional bag manufacturing apparatus including cutting means (43) for cutting the crossing points (12, 13) so that the seal lines (12a, 13a) remain is employed.

また、請求項１０に係る発明は、請求項９に記載の立体袋の製造装置において、袋体（１ａ，１ｂ，１ｃ，１ｄ）の底部から上方向に伸びる癖折線（１４）を前後壁シート（６，７）に形成する癖折線形成手段（２７，５０）を包含する立体袋の製造装置を採用する。   The invention according to claim 10 is the apparatus for manufacturing a three-dimensional bag according to claim 9, wherein the folding line (14) extending upward from the bottom of the bag (1a, 1b, 1c, 1d) is provided on the front and rear wall sheets. A three-dimensional bag manufacturing apparatus including the folded line forming means (27, 50) formed in (6, 7) is employed.

また、請求項１１に係る発明は、請求項９又は請求項１０に記載の立体袋の製造装置において、癖折線形成手段（２７）が袋体（１ａ，１ｂ，１ｃ，１ｄ）の製袋装置内に組み込まれた立体袋の製造装置を採用する。   The invention according to claim 11 is the apparatus for manufacturing a three-dimensional bag according to claim 9 or claim 10, wherein the folding line forming means (27) is a bag body (1a, 1b, 1c, 1d). A manufacturing apparatus for three-dimensional bags incorporated in the inside is adopted.

また、請求項１２に係る発明は、請求項９又は請求項１０に記載の立体袋の製造装置において、袋体（１ａ，１ｂ，１ｃ，１ｄ）がマチ形成手段（４４）によって膨張した際に癖折線形成手段（５０）により癖折線（１４）が前後壁シート（６，７）に形成されるようにした立体袋の製造装置を採用する。   The invention according to claim 12 is the apparatus for manufacturing a three-dimensional bag according to claim 9 or claim 10, wherein the bag (1a, 1b, 1c, 1d) is inflated by the gusset forming means (44). A three-dimensional bag manufacturing apparatus is adopted in which the folding line (14) is formed on the front and rear wall sheets (6, 7) by the folding line forming means (50).

また、請求項１３に係る発明は、請求項９乃至請求項１２のいずれかに記載の立体袋の製造装置において、袋体（１ａ，１ｂ，１ｃ，１ｄ）の開放された一辺にジッパー（２）を取り付けるジッパー取付手段（１９）を包含してなる立体袋の製造装置を採用する。   The invention according to claim 13 is the three-dimensional bag manufacturing apparatus according to any one of claims 9 to 12, wherein a zipper (2) is formed on the open side of the bag body (1a, 1b, 1c, 1d). A three-dimensional bag manufacturing apparatus including a zipper attaching means (19) for attaching a) is adopted.

また、請求項１４に係る発明は、請求項９乃至請求項１３のいずれかに記載の立体袋の製造装置において、マチ形成手段が、被せられた袋体（１ａ，１ｂ，１ｃ，１ｄ）内で袋体（１ａ，１ｂ，１ｃ，１ｄ）の幅方向に拡開可能なマンドレル（４４）である立体袋の製造装置を採用する。   The invention according to claim 14 is the three-dimensional bag manufacturing apparatus according to any one of claims 9 to 13, wherein the gusset forming means is provided in the covered bag body (1a, 1b, 1c, 1d). Therefore, a three-dimensional bag manufacturing apparatus which is a mandrel (44) that can be expanded in the width direction of the bag (1a, 1b, 1c, 1d) is employed.

請求項１に係る発明によれば、前後壁シート（６，７）が重ね合わされ、この前後壁シート（６，７）の三辺が閉じられた扁平な袋体（１ａ，１ｂ，１ｃ，１ｄ）が膨らんだ状態に置かれることで、袋体（１ａ，１ｂ，１ｃ，１ｄ）の両側と底に夫々縦マチ（襠）部（８，９）と底マチ部（１０）が形成され、縦マチ部（８，９）と底マチ部（１０）との略三角形の交差箇所（１２，１３）がシールされ、このシールされた交差箇所（１２，１３）がシール線（１２ａ，１３ａ）を残して切除された立体袋（１）であるから、扁平な袋体（１ａ，１ｂ，１ｃ，１ｄ）を立体化して容量を大きくすることができ、また、袋体（１ａ，１ｂ，１ｃ，１ｄ）を自立させることができる。   According to the invention of claim 1, the flat bag body (1a, 1b, 1c, 1d) in which the front and rear wall sheets (6, 7) are overlapped and the three sides of the front and rear wall sheets (6, 7) are closed. ) Is inflated to form vertical gussets (8, 9) and bottom gussets (10) on both sides and bottom of the bag (1a, 1b, 1c, 1d), A substantially triangular intersection (12, 13) between the vertical gusset (8, 9) and the bottom gusset (10) is sealed, and the sealed intersection (12, 13) is a seal line (12a, 13a). Since the three-dimensional bag (1) is cut out while leaving a flat, the capacity of the flat bag body (1a, 1b, 1c, 1d) can be increased by three-dimensionalizing the bag body (1a, 1b, 1c). , 1d) can be made independent.

請求項２に係る発明によれば、請求項１に記載の立体袋において、袋体（１ａ，１ｂ，１ｃ，１ｄ）の底部から上方向に伸びる癖折線（１４）が前後壁シート（６，７）に形成された立体袋（１）であるから、袋体（１ａ，１ｂ，１ｃ，１ｄ）の自立性を高めることができる。   According to the invention which concerns on Claim 2, in the three-dimensional bag of Claim 1, the folding line (14) extended upwards from the bottom part of a bag (1a, 1b, 1c, 1d) is a front-and-back wall sheet (6, Since it is the three-dimensional bag (1) formed in 7), the self-supporting property of the bag (1a, 1b, 1c, 1d) can be enhanced.

請求項３に係る発明によれば、請求項１又は請求項２に記載の立体袋において、袋体（１ａ，１ｂ，１ｃ，１ｄ）の開放された一辺にジッパー（２）が取り付けられた立体袋（１）であるから、袋体（１ａ，１ｂ，１ｃ，１ｄ）に再封性を与え、内容物（１１）の小出し使用を可能にすることができる。また、袋体（１ａ，１ｂ，１ｃ，１ｄ）の底部が立体的であるのに対し開口部がジッパー（２）によって腰を与えられ広口となるので、内容物（１１）を取り出しやすくすることができる。   According to the invention according to claim 3, in the three-dimensional bag according to claim 1 or claim 2, the three-dimensional bag in which the zipper (2) is attached to the opened side of the bag body (1a, 1b, 1c, 1d). Since it is a bag (1), resealability can be given to a bag (1a, 1b, 1c, 1d), and dispensing use of the contents (11) can be enabled. Moreover, since the bottom of the bag (1a, 1b, 1c, 1d) is three-dimensional, the opening is given a waist by the zipper (2) to form a wide mouth, so that the contents (11) can be easily taken out. Can do.

請求項４に係る発明によれば、前後壁シート（６，７）が重ね合わされ、この前後壁シート（６，７）の三辺が閉じられた扁平な袋体（１ａ，１ｂ，１ｃ，１ｄ）を、膨らませて袋体（１ａ，１ｂ，１ｃ，１ｄ）の両側と底に夫々縦マチ（襠）部（８，９）と底マチ部（１０）を形成するマチ形成工程と、膨らんだ袋体（１ａ，１ｂ，１ｃ，１ｄ）における縦マチ部（８，９）と底マチ部（１０）との略三角形の交差箇所（１２，１３）をシールするシール工程と、シールされた交差箇所（１２，１３）をシール線（１２ａ，１３ａ）が残るように切除する切除工程とを包含してなる立体袋の製造方法であるから、袋体（１ａ，１ｂ，１ｃ，１ｄ）を立体化してその容量を大きくすることができ、また、袋体（１ａ，１ｂ，１ｃ，１ｄ）の自立を可能にすることができる。また、従来のようなマチ片をシート間に挿入するがごとき操作を必要とせず、単に二辺、三辺又は底辺をシールした扁平な袋体（１ａ，１ｂ，１ｃ，１ｄ）を基にして作ることができるので、立体袋（１）を簡易かつ低廉に製造することができる。   According to the invention of claim 4, flat bag bodies (1a, 1b, 1c, 1d) in which the front and rear wall sheets (6, 7) are overlapped and the three sides of the front and rear wall sheets (6, 7) are closed. ) And a gusset forming step for forming vertical gusset portions (8, 9) and bottom gusset portions (10) on both sides and bottom of the bag (1a, 1b, 1c, 1d), respectively, A sealing step for sealing a substantially triangular intersection (12, 13) between the vertical gusset (8, 9) and the bottom gusset (10) in the bag (1a, 1b, 1c, 1d), and the sealed intersection Since the three-dimensional bag manufacturing method includes the excision step of excising the portion (12, 13) so that the seal line (12a, 13a) remains, the bag body (1a, 1b, 1c, 1d) is three-dimensional. The capacity of the bag body (1a, 1b, 1c, 1d) can be increased. It is possible to allow. In addition, a conventional gusset piece is inserted between sheets, but no operation is required, and based on a flat bag body (1a, 1b, 1c, 1d) which is simply sealed on two, three or bottom sides. Since it can be made, the three-dimensional bag (1) can be manufactured easily and inexpensively.

請求項５に係る発明によれば、請求項４に記載の立体袋の製造方法において、袋体（１ａ，１ｂ，１ｃ，１ｄ）の底部から上方向に伸びる癖折線（１４）を前後壁シート（６，７）に形成する癖折線形成工程を包含する立体袋の製造方法であるから、自立性に優れた立体袋（１）を製造することができる。   According to the invention which concerns on Claim 5, in the manufacturing method of the three-dimensional bag of Claim 4, the folding line (14) extended upwards from the bottom part of a bag (1a, 1b, 1c, 1d) is made into a front-and-back wall sheet | seat. Since it is a manufacturing method of the three-dimensional bag including the folding line formation process formed in (6,7), the three-dimensional bag (1) excellent in independence can be manufactured.

請求項６に係る発明によれば、請求項４又は請求項５に記載の立体袋の製造方法において、癖折線（１４）を袋体（１ａ，１ｂ，１ｃ，１ｄ）の製袋時に形成する立体袋の製造方法であるから、袋体（１ａ，１ｂ，１ｃ，１ｄ）が扁平なときに癖折線（１４）を入れることができ、立体袋の製造工程が簡易化される。   According to the invention which concerns on Claim 6, in the manufacturing method of the three-dimensional bag of Claim 4 or Claim 5, a folding line (14) is formed at the time of bag making of a bag (1a, 1b, 1c, 1d). Since it is a manufacturing method of a three-dimensional bag, when a bag body (1a, 1b, 1c, 1d) is flat, a folding line (14) can be put, and the manufacturing process of a three-dimensional bag is simplified.

請求項７に係る発明によれば、請求項４又は請求項５に記載の立体袋の製造方法において、癖折線（１４）を袋体（１ａ，１ｂ，１ｃ，１ｄ）の膨張後に形成する立体袋の製造方法であるから、袋体（１ａ，１ｂ，１ｃ，１ｄ）が膨らんだ状態で癖折線（１４）を入れることができ、癖折線（１４）を正確な形状及び位置に形成することが可能である。   According to the invention which concerns on Claim 7, in the manufacturing method of the solid bag of Claim 4 or Claim 5, the folding line (14) is formed after the expansion of the bag body (1a, 1b, 1c, 1d) Since it is a manufacturing method of a bag, a folding line (14) can be put in the state which a bag (1a, 1b, 1c, 1d) swelled, and a folding line (14) is formed in an exact shape and position. Is possible.

請求項８に係る発明によれば、請求項４乃至請求項７のいずれかに記載の立体袋の製造方法において、袋体（１ａ，１ｂ，１ｃ，１ｄ）の開放された一辺にジッパー（２）を取り付けるジッパー取付工程を包含する立体袋の製造方法であるから、再封可能な立体袋（１）を製造することができる。   According to the invention which concerns on Claim 8, in the manufacturing method of the three-dimensional bag in any one of Claim 4 thru | or 7, a zipper (2 in the open side of a bag body (1a, 1b, 1c, 1d) ) Is attached to the zipper attachment step, the re-sealable three-dimensional bag (1) can be produced.

請求項９に係る発明によれば、前後壁シート（６，７）が重ね合わされ、この前後壁シート（６，７）の三辺が閉じられた扁平な袋体（１ａ，１ｂ，１ｃ，１ｄ）を膨らませて袋体（１ａ，１ｂ，１ｃ，１ｄ）の両側と底に夫々縦マチ部（８，９）と底マチ部（１０）を形成するマチ形成手段（４４）と、膨らんだ袋体（１ａ，１ｂ，１ｃ，１ｄ）における縦マチ部（８，９）と底マチ部（１０）との略三角形の交差箇所（１２，１３）をシールするシール手段（４２）と、シールされた交差箇所（１２，１３）をシール線（１２ａ，１３ａ）が残るように切除する切除手段（４３）とを包含してなる立体袋の製造装置であるから、立体袋（１）を簡易に製造することができる。   According to the invention which concerns on Claim 9, the front-and-back wall sheet | seat (6, 7) is piled up, and the flat bag body (1a, 1b, 1c, 1d) by which three sides of this front-and-back wall sheet | seat (6, 7) were closed ) And a gusset forming means (44) for forming vertical gusset portions (8, 9) and bottom gusset portions (10) on both sides and bottom of the bag body (1a, 1b, 1c, 1d), and a swelled bag Sealing means (42) for sealing a substantially triangular intersection (12, 13) between the vertical gusset (8, 9) and the bottom gusset (10) in the body (1a, 1b, 1c, 1d); Since the three-dimensional bag manufacturing apparatus includes the excision means (43) for excising the intersecting point (12, 13) so that the seal line (12a, 13a) remains, the three-dimensional bag (1) can be simply obtained. Can be manufactured.

請求項１０に係る発明によれば、請求項９に記載の立体袋の製造装置において、袋体（１ａ，１ｂ，１ｃ，１ｄ）の底部から上方向に伸びる癖折線（１４）を前後壁シート（６，７）に形成する癖折線形成手段（２７，５０）を包含する立体袋の製造装置であるから、自立性に優れた立体袋（１）を製造することができる。   According to the invention which concerns on Claim 10, in the manufacturing apparatus of the three-dimensional bag of Claim 9, the folding line (14) extended upwards from the bottom part of a bag (1a, 1b, 1c, 1d) is made into a front-and-back wall sheet | seat. Since it is a manufacturing apparatus of the three-dimensional bag which includes the folding line formation means (27, 50) formed in (6, 7), the three-dimensional bag (1) excellent in self-supporting property can be manufactured.

請求項１１に係る発明によれば、請求項９又は請求項１０に記載の立体袋の製造装置において、癖折線形成手段（２７）が袋体（１ａ，１ｂ，１ｃ，１ｄ）の製袋装置内に組み込まれた立体袋の製造装置であるから、袋体（１ａ，１ｂ，１ｃ，１ｄ）が扁平なときに癖折線（１４）を入れることができ、自立性に優れた立体袋（１）を簡易に製造することができる。   According to an eleventh aspect of the present invention, in the three-dimensional bag manufacturing apparatus according to the ninth or tenth aspect, the folding line forming means (27) is a bag making apparatus in which the bag body (1a, 1b, 1c, 1d) is formed. Since this is a three-dimensional bag manufacturing apparatus incorporated in the bag, the folding line (14) can be inserted when the bag body (1a, 1b, 1c, 1d) is flat, and the three-dimensional bag (1 ) Can be easily manufactured.

請求項１２に係る発明によれば、請求項９又は請求項１０に記載の立体袋の製造装置において、袋体（１ａ，１ｂ，１ｃ，１ｄ）がマチ形成手段（４４）によって膨張した際に癖折線形成手段（５０）により癖折線（１４）が前後壁シート（６，７）に形成されるようにした立体袋の製造装置であるから、袋体（１ａ，１ｂ，１ｃ，１ｄ）が膨らんだ状態で癖折線（１４）を入れることができ、癖折線（１４）を正確な形状及び位置に形成することが可能である。   According to the invention of claim 12, in the three-dimensional bag manufacturing apparatus according to claim 9 or 10, when the bag body (1a, 1b, 1c, 1d) is inflated by the gusset forming means (44). Since it is a three-dimensional bag manufacturing apparatus in which the folding line (14) is formed on the front and rear wall sheets (6, 7) by the folding line forming means (50), the bag body (1a, 1b, 1c, 1d) The folded line (14) can be inserted in the expanded state, and the folded line (14) can be formed in an accurate shape and position.

請求項１３に係る発明によれば、請求項９乃至請求項１２のいずれかに記載の立体袋の製造装置において、袋体（１ａ，１ｂ，１ｃ，１ｄ）の開放された一辺にジッパー（２）を取り付けるジッパー取付手段（１９）を包含してなる立体袋の製造装置であるから、再封可能な立体袋（１）を製造することができる。   According to a thirteenth aspect of the present invention, in the three-dimensional bag manufacturing apparatus according to any one of the ninth to twelfth aspects, the zipper (2) is formed on the opened side of the bag body (1a, 1b, 1c, 1d). ), The three-dimensional bag manufacturing apparatus including the zipper mounting means (19) can be manufactured. Therefore, the resealable three-dimensional bag (1) can be manufactured.

請求項１４に係る発明によれば、請求項９乃至請求項１３のいずれかに記載の立体袋の製造装置において、マチ形成手段が、被せられた袋体（１ａ，１ｂ，１ｃ，１ｄ）内で袋体（１ａ，１ｂ，１ｃ，１ｄ）の幅方向に拡開可能なマンドレル（４４）である立体袋の製造装置であるから、袋体（１ａ，１ｂ，１ｃ，１ｄ）を簡易かつ正確に膨らませることができる。   According to a fourteenth aspect of the present invention, in the three-dimensional bag manufacturing apparatus according to any one of the ninth to thirteenth aspects, the gusset forming means is provided in the covered bag body (1a, 1b, 1c, 1d). Since the three-dimensional bag manufacturing apparatus is a mandrel (44) that can be expanded in the width direction of the bag (1a, 1b, 1c, 1d), the bag (1a, 1b, 1c, 1d) can be easily and accurately Can be inflated.

以下、図面を参照して本発明を実施するための最良の形態について説明する。   The best mode for carrying out the present invention will be described below with reference to the drawings.

図１に示す立体袋１は、図２（Ａ）に示す扁平な袋体１ａに対し後述する各種処理を施すことにより形成される。   The three-dimensional bag 1 shown in FIG. 1 is formed by subjecting the flat bag body 1a shown in FIG.

図２（Ａ）に示すように、扁平な袋体１ａは、樹脂フィルム等からなる前後壁シート６，７の左右辺と底辺の三辺をヒートシールすることにより形成され、開口部となる天辺にはジッパー２がヒートシールにより取り付けられている。符号３，４は左右辺の縦シール部を示し、符号５は底辺の底シール部を示す。ジッパー２は必要に応じて設けられるもので、天辺は開放しておくこともできる。ジッパー２は公知の構造であるから、詳細な説明は省略するが、図５に示すように、樹脂フィルムでできた二条のテープ２ａ，２ｂの対向面上に凸条２ｃと凹条２ｄをそれぞれ形成し、凸条２ｃを凹条２ｄ内に係脱自在に嵌め込んでなるものである。   As shown in FIG. 2A, the flat bag 1a is formed by heat-sealing the three sides of the left and right sides and the bottom of the front and rear wall sheets 6 and 7 made of a resin film or the like, and the top side that becomes an opening The zipper 2 is attached by heat sealing. Reference numerals 3 and 4 indicate vertical seal portions on the left and right sides, and reference numeral 5 indicates a bottom seal portion on the bottom side. The zipper 2 is provided as necessary, and the top can be opened. Since the zipper 2 has a known structure, a detailed description is omitted, but as shown in FIG. 5, the ridges 2c and the ridges 2d are respectively formed on the opposing surfaces of the two tapes 2a and 2b made of a resin film. The protrusion 2c is formed and detachably fitted into the recess 2d.

図１に示すように、この立体袋１は上記扁平な図２（Ａ）の袋体１ａを膨らませることにより得られ、その両側と底に夫々縦マチ（襠）部８，９と底マチ部１０を備える。両縦マチ部８，９と両縦マチ部８，９間の前後壁とが、この立体袋１の胴を形成し、底マチ部１０がこの立体袋１の底壁を形成する。このように、扁平な袋体１ａが立体化されることにより、袋の容量の増大化が図られる。図中符号１１は内容物を示す。また、上述したように、袋体１ａの開口部にジッパー２を設けた場合は、袋体１ａの底部が立体的であるのに対し開口部がジッパー２によって腰を与えられ広口となるので、内容物１１を取り出しやすくなる。   As shown in FIG. 1, this three-dimensional bag 1 is obtained by inflating the flat bag body 1a shown in FIG. 2A, and has vertical gussets 8 and 9 and bottom gussets on both sides and bottom, respectively. The unit 10 is provided. Both the vertical gusset portions 8 and 9 and the front and rear walls between the vertical gusset portions 8 and 9 form the body of the three-dimensional bag 1, and the bottom gusset portion 10 forms the bottom wall of the three-dimensional bag 1. In this way, the flat bag body 1a is three-dimensionalized to increase the capacity of the bag. Reference numeral 11 in the figure indicates the contents. In addition, as described above, when the zipper 2 is provided in the opening of the bag body 1a, the bottom of the bag body 1a is three-dimensional, whereas the opening is given a waist by the zipper 2 and becomes a wide mouth. It becomes easy to take out the contents 11.

上記扁平な袋体１ａを膨らませることにより、図８（Ｂ）に示すように、立体袋１の底部の両側から縦マチ部８，９と底マチ部１０との略三角形に折り畳まれた交差箇所１２，１３が突出するが、この交差箇所１２，１３がヒートシール等によりシールされる。また、このシールされた略三角形の交差箇所１２，１３がシール線１２ａ，１３ａを残すように切除される。   By inflating the flat bag 1a, as shown in FIG. 8B, the vertical gusset portions 8, 9 and the bottom gusset portion 10 are folded into a substantially triangular shape from both sides of the bottom portion of the three-dimensional bag 1. Although the locations 12 and 13 protrude, the intersecting locations 12 and 13 are sealed by heat sealing or the like. Further, the sealed substantially triangular intersections 12 and 13 are cut out so as to leave the seal lines 12a and 13a.

また、図１に示すように、縦マチ部８，９を他の箇所から区画するように必要に応じて癖折線１４が前後壁シート６，７上に形成される。癖折線１４は底マチ部１０の四隅から袋の胴上を上方向に伸びる。図示例では癖折線１４が胴の途中で止まっているが、開口部まで伸ばすことも可能である。また、底マチ部１０の四隅に対応する箇所のみならず他の箇所にも付加することも可能である。このように癖折線１４が前後壁シート６，７に形成されたことから、袋体１ａの立体化が促進され、立体袋１としての自立性が高められ、内容物１１を含んだ状態で起立状態を保持しやすくなる。癖折線１４は加熱バーを前後壁シート６，７に押し付けたり、型材でプレスしたり、前後壁シート６，７を癖折りしたりすることにより形成することができる。   Moreover, as shown in FIG. 1, the folding line 14 is formed on the front-and-back wall sheet | seats 6 and 7 as needed so that the vertical gusset part 8 and 9 may be partitioned from another location. The folding line 14 extends upward from the four corners of the bottom gusset 10 on the top of the bag. In the illustrated example, the folding line 14 is stopped in the middle of the trunk, but it can be extended to the opening. Moreover, it is possible to add not only to the locations corresponding to the four corners of the bottom gusset portion 10 but also to other locations. Since the folding line 14 is thus formed on the front and rear wall sheets 6 and 7, the three-dimensionalization of the bag body 1 a is promoted, the self-supporting property of the three-dimensional bag 1 is enhanced, and the contents 11 are erected. It becomes easier to maintain the state. The folding line 14 can be formed by pressing the heating bar against the front and rear wall sheets 6, 7, pressing with a mold material, or folding the front and rear wall sheets 6, 7.

この立体袋１の製袋後、ジッパー２が開けられ開口部から内容物１１が充填され、ジッパー２に沿った前後壁シート６，７の上縁がヒートシールされる。これにより、立体袋１が密封され、販売等に付される。消費者は立体袋１を開封し、ジッパー２を開いて内容物１１を取り出すことができ、その後ジッパー２を閉じることにより立体袋１を再度密封することができる。   After the three-dimensional bag 1 is made, the zipper 2 is opened and the contents 11 are filled from the opening, and the upper edges of the front and rear wall sheets 6 and 7 along the zipper 2 are heat sealed. Thereby, the three-dimensional bag 1 is sealed and attached for sale or the like. The consumer can open the three-dimensional bag 1, open the zipper 2 and take out the contents 11, and then close the zipper 2 to re-seal the three-dimensional bag 1.

次に、上記構成の立体袋の製造方法及び装置について説明する。   Next, the manufacturing method and apparatus of the three-dimensional bag of the said structure are demonstrated.

最初に立体袋１の元となる扁平な袋体１ａを製造する方法及び装置について図３に基づいて説明する。   First, a method and an apparatus for manufacturing a flat bag body 1a which is a base of the three-dimensional bag 1 will be described with reference to FIG.

図３に示すように、前後壁シート６，７の各巻取りロール６ａ，７ａから各シートの連続体がガイドローラ１５に案内されつつ繰り出され、引出ローラ８により上下に重ね合わされて一方向に連続的に送られる。重ね合わされた前後壁シート６，７は複数本のガイドローラ１６，１７とガイドローラ１６，１７間に設けられるダンサーローラ１８とにより下流側に送り出される。ダンサーローラ１８は上下に揺動運動することにより重なった前後壁シート６，７を袋体１ａの幅分を一ピッチとして一ピッチずつ間欠的に送り出す。前後壁シート６，７は袋体１ａを二列で作りうる幅分で送られる。   As shown in FIG. 3, a continuous body of each sheet is drawn out from the winding rolls 6 a and 7 a of the front and rear wall sheets 6 and 7 while being guided by the guide roller 15, and is superposed vertically by the drawing roller 8 and continuously in one direction. Sent. The overlapped front and rear wall sheets 6 and 7 are sent downstream by a plurality of guide rollers 16 and 17 and a dancer roller 18 provided between the guide rollers 16 and 17. The dancer roller 18 intermittently feeds the front and rear wall sheets 6 and 7 overlapped by swinging up and down, one pitch at a time, with the width of the bag 1a as one pitch. The front and rear wall sheets 6 and 7 are fed in a width that can form the bags 1a in two rows.

間欠送りされる前後壁シート６，７の流れ方向には、ジッパー装着部１９、第一の中間駆動ローラ２０、底辺熱プレス部２１、底辺冷却部２２、ジッパーポイント熱プレス部２３、第二の中間駆動ローラ２４、左右辺熱プレス部２５、左右辺冷却部２６、癖折線刻設部２７、カッター２８、第三の中間駆動ローラ２９、断裁部３０が順に又は重なるように設置される。   In the flow direction of the front and rear wall sheets 6 and 7 that are intermittently fed, the zipper mounting portion 19, the first intermediate drive roller 20, the bottom heat press portion 21, the bottom cooling portion 22, the zipper point heat press portion 23, the second The intermediate drive roller 24, the left and right side heat press part 25, the left and right side cooling part 26, the folding line engraving part 27, the cutter 28, the third intermediate drive roller 29, and the cutting part 30 are installed in order or overlapping.

第一ないし第三の中間駆動ローラ２０，２４，２９は、前後壁シート６，７の流れ方向に所定の間隔で配置され、同じ周速度で間欠回転し、上下に重なった前後壁シート６，７を一ピッチずつ一方向に搬送する。   The first to third intermediate drive rollers 20, 24, 29 are arranged at predetermined intervals in the flow direction of the front and rear wall sheets 6, 7, intermittently rotate at the same peripheral speed, and overlapped vertically. 7 is conveyed by one pitch in one direction.

ジッパー装着部１９は、ジッパー２の連続体を夫々巻き取ったリール２ｅと、リール２ｅから繰り出されるジッパー２を前後壁シート６，７の走行方向に案内するガイド板３１と、ジッパー２を前後壁シート６，７に溶着するジッパー取付用プレス盤３２ａ，３２ｂと、ジッパー取付用プレス盤３２ａ，３２ｂによる加熱部分を冷却するジッパー冷却盤３３ａ，３３ｂとを具備する。   The zipper mounting portion 19 includes a reel 2e wound around a continuous body of the zipper 2, a guide plate 31 that guides the zipper 2 fed out from the reel 2e in the running direction of the front and rear wall sheets 6, 7, and the zipper 2 on the front and rear walls. Zipper mounting press machines 32a and 32b welded to the sheets 6 and 7 and zipper cooling machines 33a and 33b for cooling the heated portions of the zipper mounting press machines 32a and 32b.

ガイド板３１は、前後壁シート６，７の間に挟まれる表面が平滑な板材であり、図４に示すように、この板材の上流側に二つのジッパー導入孔３１ａが形成され、各ジッパー導入孔３１ａから下流側の端縁に向って案内溝３１ｂが伸びている。ジッパー２は各リール２ｅから繰り出され、前後壁シート６，７の両側縁から両シート６，７間に挿入された後各導入孔３１ａから各案内溝３１ｂへと挿入され、図５に示すように、各案内溝３１ｂの両縁がジッパー２の二条のテープ２ａ，２ｂ間に差し込まれることでガイド板３１に保持される。   The guide plate 31 is a plate having a smooth surface sandwiched between the front and rear wall sheets 6 and 7, and as shown in FIG. 4, two zipper introduction holes 31a are formed on the upstream side of the plate, and each zipper is introduced. A guide groove 31b extends from the hole 31a toward the downstream edge. The zipper 2 is unwound from each reel 2e and inserted between both sheets 6 and 7 from both side edges of the front and rear wall sheets 6 and 7, and then inserted into each guide groove 31b from each introduction hole 31a, as shown in FIG. In addition, both edges of each guide groove 31 b are held by the guide plate 31 by being inserted between the two tapes 2 a and 2 b of the zipper 2.

ジッパー取付用プレス盤３２ａ，３２ｂは、図３に示すように、ガイド板３１の各案内溝３１ｂ上に配置され、図５に示すように、前後壁シート６，７を上下から挟むように対向配置される。各ジッパー取付用プレス盤３２ａ，３２ｂの内部には電気ヒータ３４が埋設される。上下のジッパー取付用プレス盤３２ａ，３２ｂは前後壁シート６，７が停止する都度、ガイド板３１の表裏に対して移動し、ジッパー２のテープ２ａ，２ｂを前後壁シート６，７に熱プレスする。これにより、二条のテープ２ａ，２ｂはテープ２ａ，２ｂ同士が溶着することなく上下の前後壁シート６，７に溶着する。   As shown in FIG. 3, the press machines 32a and 32b for attaching the zipper are arranged on the guide grooves 31b of the guide plate 31 and face each other so as to sandwich the front and rear wall sheets 6 and 7 from above and below as shown in FIG. Be placed. An electric heater 34 is embedded in each zipper mounting press panel 32a, 32b. The upper and lower zipper mounting press machines 32a and 32b move relative to the front and back of the guide plate 31 whenever the front and rear wall sheets 6 and 7 are stopped, and the tapes 2a and 2b of the zipper 2 are hot pressed onto the front and rear wall sheets 6 and 7 respectively. To do. Thereby, the two tapes 2a and 2b are welded to the upper and lower front and rear wall sheets 6 and 7 without welding the tapes 2a and 2b.

なお、この実施の形態ではジッパー取付用プレス盤３２ａ，３２ｂは二ピッチ分の長さに形成され、このためジッパー２のテープ２ａ，２ｂは前後壁シート６，７に二度ずつ溶着される。   In this embodiment, the zipper mounting press machines 32a and 32b are formed to have a length corresponding to two pitches. For this reason, the tapes 2a and 2b of the zipper 2 are welded to the front and rear wall sheets 6 and 7 twice.

ジッパー冷却盤３３ａ，３３ｂは、ジッパー取付用プレス盤３２ａ，３２ｂと略同様なブロック体であるが、内部には電気ヒータ３４に代えて冷却水の通路（図示せず）が形成される。上下のジッパー冷却盤３３ａ，３３ｂは前後壁シート６，７が停止する都度、ガイド板３１の表裏に対して移動し、ジッパー取付用プレス盤３２ａ，３２ｂにより加熱されたジッパー２を冷却する。   The zipper cooling boards 33a and 33b are substantially the same block bodies as the zipper mounting press boards 32a and 32b, but a cooling water passage (not shown) is formed inside instead of the electric heater 34. Each time the front and rear wall sheets 6 and 7 stop, the upper and lower zipper cooling boards 33a and 33b move relative to the front and back of the guide plate 31 to cool the zipper 2 heated by the zipper mounting press boards 32a and 32b.

ジッパー２を取り付けられた前後壁シート６，７は、図３に示すように、第一の中間駆動ローラ２０によって底辺熱プレス部２１へと搬送される。底辺熱プレス部２１は前後壁シート６，７の流れ方向に沿って伸びるプレス盤３５ａ，３５ｂを備える。このプレス盤３５ａ，３５ｂも、前後壁シート６，７を上下から挟むように対向配置され、各々にはジッパー取付用プレス盤３２ａ，３２ｂと同様に内部に電気ヒータが埋設される。この上下のプレス盤３５ａ，３５ｂが前後壁シート６，７が停止する都度、前後壁シート６，７を上下から挟み込み、袋体１ａの底辺に相当する箇所を溶着する。   As shown in FIG. 3, the front and rear wall sheets 6, 7 to which the zipper 2 is attached are conveyed to the bottom heat press portion 21 by the first intermediate drive roller 20. The bottom heat press section 21 includes press plates 35a and 35b extending along the flow direction of the front and rear wall sheets 6 and 7. The press boards 35a and 35b are also arranged so as to sandwich the front and rear wall sheets 6 and 7 from above and below, and an electric heater is embedded in each of the press boards 35a and 32b in the same manner as the zipper mounting press boards 32a and 32b. Each time the upper and lower press panels 35a and 35b stop the front and rear wall sheets 6 and 7, the front and rear wall sheets 6 and 7 are sandwiched from above and below, and a portion corresponding to the bottom side of the bag 1a is welded.

底辺冷却部２２は、ジッパー冷却盤３３ａ，３３ｂと略同様な構造の冷却盤３６ａ，３６ｂを備える。冷却盤３６ａ，３６ｂは底辺熱プレス部２１に連続するように配置され、前後壁シート６，７を上下から挟むように配置される。上下の冷却盤３６ａ，３６ｂは前後壁シート６，７が停止する都度、前後壁シート６，７を挟むように接触し、底辺熱プレス部２１のプレス盤３５ａ，３５ｂにより加熱された箇所を冷却する。   The bottom side cooling unit 22 includes cooling boards 36a and 36b having substantially the same structure as the zipper cooling boards 33a and 33b. The cooling boards 36a and 36b are arranged so as to be continuous with the bottom side hot press section 21, and are arranged so as to sandwich the front and rear wall sheets 6 and 7 from above and below. Each time the front and rear wall sheets 6 and 7 are stopped, the upper and lower cooling boards 36a and 36b are in contact with each other so as to sandwich the front and rear wall sheets 6 and 7, and cool the portions heated by the press boards 35a and 35b of the bottom heat press portion 21. To do.

また、図３に示すように、底辺熱プレス部２１のプレス盤３５ａ，３５ｂと平行にジッパーポイント熱プレス部２３が配置される。ジッパーポイント熱プレス部２３も、前後壁シート６，７を上下から挟むように対向配置されるプレス盤３７ａ，３７ｂを備え、各々にはジッパー取付用プレス盤３２ａ，３２ｂと同様に内部に電気ヒータが埋設される。この上下のプレス盤３７ａ，３７ｂには、各袋体１ａにおけるジッパー２の両端に対応する箇所をポイント状にシールするための突起（図示せず）が形成される。図６中二点鎖線の四角形で示す箇所３８がこのポイントシール部であり、プレス盤３７ａ，３７ｂの突起はこの図６に示す箇所に対応する形状に形成される。ジッパーポイント熱プレス部２３のプレス盤３７ａ，３７ｂも前後壁シート６，７が停止する都度、前後壁シート６，７を上下から挟み込み、袋体１ａのジッパー２の両端に対応する箇所を溶着する。このプレス盤３７ａ，３７ｂは確実にシールするため二ピッチにわたって設けられる。このジッパーポイント熱プレス部２３による加熱圧着により、ジッパー２の両端は凸条２ｃと凹条２ｄが押し潰され、テープ２ａ，２ｂ同士が溶着される。   Moreover, as shown in FIG. 3, the zipper point hot press part 23 is arrange | positioned in parallel with the press boards 35a and 35b of the base hot press part 21. As shown in FIG. The zipper point heat press section 23 also includes press plates 37a and 37b disposed so as to sandwich the front and rear wall sheets 6 and 7 from above and below, and each has an internal electric heater in the same manner as the zipper mounting press plates 32a and 32b. Is buried. On the upper and lower press disks 37a and 37b, protrusions (not shown) are formed for sealing points corresponding to both ends of the zipper 2 in each bag body 1a. A point 38 indicated by a two-dot chain line in FIG. 6 is the point seal portion, and the projections of the press plates 37a and 37b are formed in a shape corresponding to the portion shown in FIG. Each time the front and rear wall sheets 6 and 7 are stopped, the press plates 37a and 37b of the zipper point heat press section 23 sandwich the front and rear wall sheets 6 and 7 from above and below, and weld portions corresponding to both ends of the zipper 2 of the bag body 1a. . The press boards 37a and 37b are provided over two pitches for reliable sealing. By thermocompression bonding by the zipper point hot press portion 23, the ridges 2c and the ridges 2d are crushed at both ends of the zipper 2, and the tapes 2a and 2b are welded together.

ジッパー２の両端が接着され、底シール部５に対応する箇所がシールされた前後壁シート６，７は、図３に示すように、第二の中間駆動ローラ２４によって左右辺熱プレス部２５へと搬送される。左右辺熱プレス部２５は前後壁シート６，７の流れ方向に対し直交する方向に伸びるプレス盤３９ａ，３９ｂを備える。このプレス盤３９ａ，３９ｂも、前後壁シート６，７を上下から挟むように対向配置され、各々には底辺熱プレス部２１のプレス盤３５ａ，３５ｂと同様に内部に電気ヒータが埋設される。この上下のプレス盤３９ａ，３９ｂが前後壁シート６，７が停止する都度、前後壁シート６，７を上下から挟み込み、図６に示すように袋体１ａの隣り合う縦シール部３，４に相当する箇所を溶着する。   As shown in FIG. 3, the front and rear wall sheets 6, 7 where both ends of the zipper 2 are bonded and the portions corresponding to the bottom seal portion 5 are sealed are transferred to the left and right side heat press portions 25 by the second intermediate drive roller 24. It is conveyed. The left and right side heat press section 25 includes press panels 39a and 39b extending in a direction orthogonal to the flow direction of the front and rear wall sheets 6 and 7. The press boards 39a and 39b are also arranged so as to sandwich the front and rear wall sheets 6 and 7 from above and below, and an electric heater is embedded in each of the press boards 39a and 35b in the same manner as the press boards 35a and 35b of the bottom heat press portion 21. When the upper and lower press panels 39a and 39b stop the front and rear wall sheets 6 and 7, the front and rear wall sheets 6 and 7 are sandwiched from the upper and lower sides, and as shown in FIG. Weld corresponding parts.

また、左右辺熱プレス部２５の下流側には、図３に示すように、左右辺冷却部２６が配置される。左右辺冷却部２６は底辺冷却部２２の冷却盤と略同様な構造の冷却盤４０ａ，４０ｂを備える。冷却盤４０ａ，４０ｂは左右辺熱プレス部２５の下流側に配置され、前後壁シート６，７を上下から挟むように配置される。上下の冷却盤４０ａ，４０ｂは前後壁シート６，７が停止する都度、前後壁シート６，７に対して接触し、左右辺熱プレス部２５のプレス盤３９ａ，３９ｂにより加熱された箇所を冷却する。   Moreover, as shown in FIG. 3, the left and right side cooling units 26 are disposed on the downstream side of the left and right side heat press units 25. The left and right side cooling unit 26 includes cooling plates 40 a and 40 b having a structure substantially similar to that of the bottom side cooling unit 22. The cooling boards 40a and 40b are arranged on the downstream side of the left and right side heat press sections 25, and are arranged so as to sandwich the front and rear wall sheets 6 and 7 from above and below. Each time the front and rear wall sheets 6 and 7 stop, the upper and lower cooling boards 40a and 40b come into contact with the front and rear wall sheets 6 and 7 and cool the portions heated by the press boards 39a and 39b of the left and right side heat press section 25. To do.

左右辺冷却部２６の下流側には、図１に示す癖折線１４を前後壁シート６，７に形成するための癖折線刻設部２７が図３に示すように設けられる。癖折線刻設部２７は前後壁シート６，７を上下から挟む加圧盤４１ａ，４１ｂを備え、加圧盤４１ａ，４１ｂには図６に示すような癖折線１４を前後壁シート６，７にプレス成形する凹凸部（図示せず）が形成される。   As shown in FIG. 3, a folding line engraving section 27 for forming the folding line 14 shown in FIG. 1 on the front and rear wall sheets 6 and 7 is provided on the downstream side of the left and right side cooling section 26. The folding line engraving section 27 includes pressure plates 41a and 41b sandwiching the front and rear wall sheets 6 and 7 from above and below, and the pressure plates 41a and 41b press the folding line 14 as shown in FIG. An uneven portion (not shown) to be molded is formed.

癖折線刻設部２７の下流側には、図３に示すように、カッター２８が設けられる。前後壁シート６，７は第三の中間駆動ローラ２９により一方向に送られながら、カッター２８により図６中二点鎖線で示す切り離し線で左右二条に切り離される。   As shown in FIG. 3, a cutter 28 is provided on the downstream side of the folding line engraving portion 27. The front and rear wall sheets 6 and 7 are cut into two left and right strips by a cutting line shown by a two-dot chain line in FIG. 6 while being fed in one direction by a third intermediate driving roller 29.

カッター２８で切り離された前後壁シート６，７は、図３に示すように、第三の中間駆動ローラ２９により断裁部３０へと送られ、断裁部の切断刃３０ａ，３０ｂにより各袋体１ａに切断される。   As shown in FIG. 3, the front and rear wall sheets 6 and 7 cut by the cutter 28 are sent to the cutting section 30 by the third intermediate drive roller 29, and each bag 1a is cut by the cutting blades 30a and 30b of the cutting section. Disconnected.

このように、前後壁シート６，７が重ね合わされ、この前後壁シート６，７の三辺が閉じられることにより形成された扁平な袋体１ａは、例えばロボット（図示せず）により次の製造工程に受け渡され立体袋１に加工される。   Thus, the flat bag 1a formed by overlapping the front and rear wall sheets 6 and 7 and closing the three sides of the front and rear wall sheets 6 and 7 is manufactured by, for example, a robot (not shown). It is delivered to the process and processed into a three-dimensional bag 1.

扁平な袋体１ａを立体袋１に加工する方法及び装置は図７及び図８（Ａ）〜（Ｆ）に示される。   The method and apparatus for processing the flat bag 1a into the three-dimensional bag 1 are shown in FIGS. 7 and 8A to 8F.

この加工装置は、図７及び図８（Ａ）〜（Ｆ）に示すように、上記工程で作られた扁平な袋体１ａを膨らませて袋体１ａの両側と底に夫々縦マチ部８，９と底マチ部１０を形成するマチ形成部と、膨らんだ袋体１ａにおける縦マチ部８，９と底マチ部１０との略三角形の交差箇所１２，１３をシールするシール機４２と、シールされた交差箇所１２，１３をシール線１２ａ，１３ａが残るように切除する切除機４３とを備える。   As shown in FIGS. 7 and 8 (A) to (F), this processing apparatus inflates the flat bag body 1a made in the above-described process and forms vertical gusset portions 8 on both sides and the bottom of the bag body 1a, respectively. 9 and a gusset forming portion that forms the bottom gusset portion 10, a sealing machine 42 that seals substantially triangular intersections 12 and 13 between the vertical gusset portions 8 and 9 and the bottom gusset portion 10 in the inflated bag 1a, and a seal And a cutting machine 43 that cuts the crossed points 12 and 13 so that the seal lines 12a and 13a remain.

マチ形成部は、一方向に拡縮可能なマンドレル４４を備える。マンドレル４４は平行に起立する二本の柱状片４５，４６を有し、各柱状片４５，４６が支持台４７，４８上に固定される。一方の支持台４８は定位置に固定され、他方の支持台４７はアクチュエータであるピストン・シリンダ装置４９に連結され、ピストン・シリンダ装置４９の伸縮動作により一方の支持台４８に対して接近又は離反可能である。両柱状片４５，４６の対向面と反対側には立体袋１の縦マチ部８，９に対応する縦マチ形成面４５ａ，４６ａが設けられ、上端には立体袋１の底マチ部１０に対応する底マチ形成面４５ｂ，４６ｂが設けられる。   The gusset forming portion includes a mandrel 44 that can be expanded and contracted in one direction. The mandrel 44 has two columnar pieces 45 and 46 that stand in parallel, and the columnar pieces 45 and 46 are fixed on the support bases 47 and 48. One support base 48 is fixed at a fixed position, and the other support base 47 is connected to a piston / cylinder device 49 which is an actuator. Is possible. Vertical gusset forming surfaces 45a and 46a corresponding to the vertical gusset portions 8 and 9 of the three-dimensional bag 1 are provided on the opposite side of the opposite surfaces of the columnar pieces 45 and 46, and the bottom gusset portion 10 of the three-dimensional bag 1 is provided at the upper end. Corresponding bottom gusset forming surfaces 45b, 46b are provided.

マチ形成部であるマンドレル４４等は多数組用意され、直線走行路又は環状走行路上を間欠走行するように配置される。直線走行路又は環状走行路上には例えば図８（Ａ）〜（Ｆ）に対応して六つのステーションが設けられ、マチ形成部が各ステーションで停止する都度図８（Ａ）〜（Ｆ）に夫々示す加工が袋体１ａに対して行われる。   Many sets of mandrels 44, which are gusset forming portions, are prepared and arranged to intermittently travel on a straight traveling path or an annular traveling path. For example, six stations corresponding to FIGS. 8A to 8F are provided on a straight traveling path or an annular traveling path, and each time the gusset forming unit stops at each station, the stations illustrated in FIGS. Processing shown respectively is performed with respect to the bag 1a.

図８（Ａ）のステーションでは、ロボット等により扁平な袋体１ａの開口部が拡げられマンドレル４４に被せられる。このときマンドレル４４は縮状態すなわち両柱状４５，４６片が接近した状態にある。袋体１ａは、その左右の縦シール部４，３が柱状片４５，４６の縦マチ形成面４５ａ，４６ａに対向し、底シール部５が柱状片４５，４６の底マチ形成面４５ｂ，４６ｂに対向するように被せられる。   8A, the opening of the flat bag 1a is expanded by a robot or the like and is placed on the mandrel 44. At this time, the mandrel 44 is in a contracted state, that is, in a state in which both columnar shapes 45 and 46 are close to each other. In the bag body 1a, the left and right vertical seal portions 4 and 3 are opposed to the vertical gusset formation surfaces 45a and 46a of the columnar pieces 45 and 46, and the bottom seal portion 5 is the bottom gusset formation surfaces 45b and 46b of the columnar pieces 45 and 46. It is covered so that it may face.

図８（Ｂ）のステーションでは、ピストン・シリンダ装置４９の縮動作により、マンドレル４４における一方の柱状片４７が他方の柱状片４８から所定距離だけ離反する。これにより、袋体１ａが膨らみ、各柱状片４５，４６の縦マチ形成面４５ａ，４６ａと底マチ形成面４５ｂ，４６ｂが袋体１ａの内面に当り、袋体１ａの両側と底に夫々縦マチ（襠）部８，９と底マチ部１０が形成される。   In the station of FIG. 8 (B), one columnar piece 47 in the mandrel 44 is separated from the other columnar piece 48 by a predetermined distance due to the contraction operation of the piston / cylinder device 49. As a result, the bag body 1a swells, and the vertical gusset forming surfaces 45a and 46a and the bottom gusset forming surfaces 45b and 46b of the columnar pieces 45 and 46 are in contact with the inner surface of the bag body 1a, and vertically on both sides and the bottom of the bag body 1a. The gusset portions 8 and 9 and the bottom gusset portion 10 are formed.

図８（Ｃ）のステーションでは、シール機４２の熱プレス盤４２ａ，４２ｂが、膨らんだ袋体１ａにおける縦マチ部８，９と底マチ部１０との略三角形の交差箇所１２，１３をヒートシールする。熱プレス盤４２ａ，４２ｂは左右の交差箇所１２，１３を上下から挟むことが出来るように左右に一対ずつ設けられる。各熱プレス盤４２ａ，４２ｂは、図３に示した袋体１ａの各シール部３，４，５をシールするプレス盤３５ａ，３５ｂ等と同様に内部に電気ヒータを有する。   In the station of FIG. 8 (C), the hot press plates 42a and 42b of the sealing machine 42 heat the substantially triangular intersections 12 and 13 between the vertical gussets 8 and 9 and the bottom gusset 10 in the inflated bag 1a. Seal. A pair of hot press panels 42a and 42b are provided on the left and right so that the left and right intersections 12 and 13 can be sandwiched from above and below. Each of the hot press machines 42a and 42b has an electric heater in the same manner as the press machines 35a and 35b for sealing the seal portions 3, 4 and 5 of the bag 1a shown in FIG.

図８（Ｄ）のステーションでは、シールされたシール線１２ａ，１３ａが残るように切除機４３が切除する。切除機４３は左右の交差箇所１２，１３に対し配置され、それぞれ交差箇所１２，１３を下から支える受け台４３ａと受け台４３ａに対して接離する切断刃４３ｂとを備える。   In the station of FIG. 8D, the excision machine 43 excises so that the sealed seal lines 12a and 13a remain. The excision machine 43 is disposed with respect to the left and right intersections 12 and 13, and includes a cradle 43a that supports the intersections 12 and 13 from below and a cutting blade 43b that contacts and separates from the cradle 43a.

図８（Ｅ）のステーションでは、癖折線形成バー５０が、袋体１ａの底部から開口部に向って伸びる癖折線１４を前後壁シート６，７に形成する。癖折線形成バー５０は内部に電気ヒータを有しており、その稜線部５０ａとマンドレル４４の柱状片４５，４６の稜線部４４ａとで袋体１ａの前後壁シート６，７を加圧することにより、縦マチ部８，９を他の部分から区画する区画線上に癖折線１４を溶融線として刻設する。   In the station of FIG. 8 (E), the folding line forming bar 50 forms the folding line 14 extending from the bottom of the bag body 1a toward the opening on the front and rear wall sheets 6 and 7. The folding line forming bar 50 has an electric heater inside, and presses the front and rear wall sheets 6 and 7 of the bag body 1a with the ridge line portion 50a and the ridge line portions 44a of the columnar pieces 45 and 46 of the mandrel 44. The folding line 14 is engraved as a melting line on the lane marking that divides the vertical gussets 8 and 9 from other portions.

なお、図３に示したように、袋体１ａを作る工程においてプレス盤４１ａ，４１ｂにより癖折線１４を形成する場合はこの図８（Ｅ）のステーション及び癖折線形成バー５０を省略してもよい。また、この図８（Ｅ）のステーション及び癖折線形成バー５０を設ける場合は、図３に示した癖折線形成用のプレス盤４１ａ，４１ｂを省略してもよい。   As shown in FIG. 3, in the process of making the bag 1a, when the folding line 14 is formed by the press panels 41a and 41b, the station and the folding line forming bar 50 in FIG. 8E may be omitted. Good. Further, when the station and the folding line forming bar 50 shown in FIG. 8 (E) are provided, the folding line forming press plates 41a and 41b shown in FIG. 3 may be omitted.

図８（Ｆ）のステーションでは、ピストン・シリンダ装置４９の伸動作により、マンドレル４４における一方の柱状片４５が他方の柱状片４６に接近して図８（Ａ）に示す元の位置に戻り、マンドレル４４が再び縮状態になる。これにより、左右両側と底に夫々縦マチ（襠）部８，９と底マチ部１０を備えた立体袋１が完成する。   In the station of FIG. 8 (F), one columnar piece 45 in the mandrel 44 approaches the other columnar piece 46 and returns to the original position shown in FIG. The mandrel 44 is again contracted. As a result, the three-dimensional bag 1 having the vertical gussets 8 and 9 and the bottom gusset 10 on the left and right sides and the bottom is completed.

この立体袋１は図８（Ｆ）のステーションで図示しないロボット等によりマンドレル４４から取り外され、扁平に折り畳まれて出荷される。或いは、折り畳まれることなく、内容物１１を開口部から充填された後、ジッパー２で封をされ、更にジッパー２より上側の上辺がヒートシールされた後に出荷される。   The three-dimensional bag 1 is removed from the mandrel 44 by a robot or the like (not shown) at the station of FIG. 8 (F), is folded flat, and is shipped. Alternatively, after the contents 11 are filled from the opening without being folded, the contents 11 are sealed with the zipper 2, and further, the upper side above the zipper 2 is heat-sealed and shipped.

なお、本発明は上記実施の形態に限定されるものではなく適宜変更可能であり、例えば上記実施の形態では図２（Ａ）に示した三方シール型の袋体１ａを用いて立体袋１を形成したが、同図（Ｂ）に示す二方シール型の袋体１ｂ、同図（Ｃ）に示すようなインフレーション法により得た筒状シートの底をヒートシールしてなる底シール型の袋体１ｃ、同図（Ｄ）に示す二方シール型の袋体１ｄを用いて立体袋を形成することも可能である。また、図３、図７に示した各工程は適宜順序を変更することが可能であり、適宜追加、変更することも可能である。   In addition, this invention is not limited to the said embodiment, It can change suitably, For example, in the said embodiment, the three-dimensional bag 1 is used using the three-sided seal-type bag body 1a shown to FIG. 2 (A). The bottom-sealed bag formed by heat-sealing the bottom of the cylindrical sheet obtained by the inflation method as shown in FIG. It is also possible to form a three-dimensional bag using the body 1c and the two-side sealed bag 1d shown in FIG. In addition, the order of the steps shown in FIGS. 3 and 7 can be changed as appropriate, and can be added or changed as appropriate.

本発明に係る立体袋の一実施形態を示す斜視図である。It is a perspective view which shows one Embodiment of the three-dimensional bag which concerns on this invention. 図１に示す立体袋の素材となる各種袋体の斜視図であり、（Ａ）は三方シール型袋体、（Ｂ）は二方シール型袋体、（Ｃ）は底シール型袋体、（Ｄ）は他の二方シール型袋体をそれぞれ示す。It is a perspective view of the various bag body used as the raw material of the three-dimensional bag shown in FIG. 1, (A) is a three-side seal type bag body, (B) is a two-side seal type bag body, (C) is a bottom seal type bag body, (D) shows each of the other two-side sealed bags. 図２（Ａ）に示す袋体の製袋方法及び装置の一例を示す斜視図である。It is a perspective view which shows an example of the bag making method and apparatus of a bag body shown to FIG. 2 (A). ジッパーのガイド板を示す斜視図である。It is a perspective view which shows the guide plate of a zipper. 図３の製袋装置において図４中Ｖ−Ｖ線方向に見た断面図である。It is sectional drawing seen in the VV line direction in FIG. 4 in the bag making apparatus of FIG. 図３中ＶＩ部の部分切欠図である。FIG. 4 is a partial cutaway view of a portion VI in FIG. 3. 図２（Ａ）に示す袋体から立体袋を得る装置の一例を示す斜視図である。It is a perspective view which shows an example of the apparatus which obtains a three-dimensional bag from the bag body shown to FIG. 2 (A). 図２（Ａ）に示す袋体から立体袋を得る方法の各工程を示す斜視図である。It is a perspective view which shows each process of the method of obtaining a three-dimensional bag from the bag body shown to FIG. 2 (A).

符号の説明Explanation of symbols

１…立体袋
１ａ，１ｂ，１ｃ，１ｄ…袋体
２…ジッパー
６，７…前後壁シート
８，９…縦マチ部
１０…底マチ部
１２，１３…交差箇所
１２ａ，１３ａ…シール線
１４…癖折線
１９…ジッパー装着部
２７…癖折線刻設部
４２…シール機
４３…切除機
４４…マンドレル
５０…癖折線形成バー DESCRIPTION OF SYMBOLS 1 ... Three-dimensional bag 1a, 1b, 1c, 1d ... Bag body 2 ... Zipper 6,7 ... Front and rear wall sheet 8,9 ... Vertical gusset part 10 ... Bottom gusset part 12, 13 ... Intersection location 12a, 13a ... Seal line 14 ... Folding line 19 ... Zipper mounting part 27 ... Folding line engraving part 42 ... Sealing machine 43 ... Cutting machine 44 ... Mandrel 50 ... Folding line forming bar

Claims (14)

前後壁シートが重ね合わされ、この前後壁シートの三辺が閉じられた扁平な袋体が膨らんだ状態に置かれることで、袋体の両側と底に夫々縦マチ部と底マチ部が形成され、縦マチ部と底マチ部との略三角形の交差箇所がシールされ、このシールされた交差箇所がシール線を残して切除されたことを特徴とする立体袋。   The front and back wall sheets are overlapped, and the flat bag body with the three sides of the front and rear wall sheet closed is placed in an inflated state, thereby forming a vertical gusset portion and a bottom gusset portion on both sides and the bottom of the bag body, respectively. A three-dimensional bag characterized in that a substantially triangular intersection between the vertical gusset and the bottom gusset is sealed, and the sealed intersection is cut away leaving a seal line. 請求項１に記載の立体袋において、袋体の底部から上方向に伸びる癖折線が前後壁シートに形成されたことを特徴とする立体袋。   The three-dimensional bag according to claim 1, wherein a folding line extending upward from the bottom of the bag body is formed on the front and rear wall sheets. 請求項１又は請求項２に記載の立体袋において、袋体の開放された一辺にジッパーが取り付けられたことを特徴とする立体袋。   The three-dimensional bag according to claim 1 or 2, wherein a zipper is attached to one side of the bag body that is opened. 前後壁シートが重ね合わされ、この前後壁シートの三辺が閉じられた扁平な袋体を、膨らませて袋体の両側と底に夫々縦マチ（襠）部と底マチ部を形成するマチ形成工程と、膨らんだ袋体における縦マチ部と底マチ部との略三角形の交差箇所をシールするシール工程と、シールされた交差箇所をシール線が残るように切除する切除工程とを包含してなることを特徴とする立体袋の製造方法。   A gusset forming process in which a flat bag body in which the front and rear wall sheets are overlapped and the three sides of the front and rear wall sheets are closed is inflated to form a vertical gusset portion and a bottom gusset portion on both sides and the bottom of the bag body, respectively. And a sealing step for sealing a substantially triangular intersection between the vertical gusset portion and the bottom gusset portion in the inflated bag body, and a cutting step for excising the sealed intersection portion so that the seal line remains. The manufacturing method of the three-dimensional bag characterized by the above-mentioned. 請求項４に記載の立体袋の製造方法において、袋体の底部から上方向に伸びる癖折線を前後壁シートに形成する癖折線形成工程を包含することを特徴とする立体袋の製造方法。   The manufacturing method of the three-dimensional bag of Claim 4 including the folding line formation process which forms the folding line which extends upwards from the bottom part of a bag body in a front-and-back wall sheet | seat in the manufacturing method of the three-dimensional bag of Claim 4. 請求項４又は請求項５に記載の立体袋の製造方法において、癖折線を袋体の製袋時に形成することを特徴とする立体袋の製造方法。
を採用する。 The method for producing a three-dimensional bag according to claim 4 or 5, wherein the folding line is formed when the bag body is produced.
Is adopted. 請求項４又は請求項５に記載の立体袋の製造方法において、癖折線を袋体の膨張後に形成することを特徴とする立体袋の製造方法。
を採用する。 The method for manufacturing a three-dimensional bag according to claim 4 or 5, wherein the folding line is formed after the bag body is inflated.
Is adopted. 請求項４乃至請求項７のいずれかに記載の立体袋の製造方法において、袋体の開放された一辺にジッパーを取り付けるジッパー取付工程を包含することを特徴とする立体袋の製造方法。   The manufacturing method of the three-dimensional bag in any one of Claim 4 thru | or 7 including the zipper attachment process which attaches a zipper to the open one side of a bag body. 前後壁シートが重ね合わされ、この前後壁シートの三辺が閉じられた扁平な袋体を膨らませて袋体の両側と底に夫々縦マチ部と底マチ部を形成するマチ形成手段と、膨らんだ袋体における縦マチ部と底マチ部との略三角形の交差箇所をシールするシール手段と、シールされた交差箇所をシール線が残るように切除する切除手段とを包含してなることを特徴とする立体袋の製造装置。   The front and rear wall sheets are overlapped, and a flat bag body in which the three sides of the front and rear wall sheet are closed is inflated to form a vertical gusset portion and a bottom gusset portion on both sides and the bottom of the bag body, respectively, and inflated A sealing means for sealing a substantially triangular intersection between the vertical gusset and the bottom gusset in the bag body, and a cutting means for excising the sealed intersection so that a seal line remains are included. Manufacturing equipment for three-dimensional bags. 請求項９に記載の立体袋の製造装置において、袋体の底部から上方向に伸びる癖折線を前後壁シートに形成する癖折線形成手段を包含することを特徴とする立体袋の製造装置。   The manufacturing apparatus of the three-dimensional bag of Claim 9 including the folding line formation means which forms the folding line which extends upwards from the bottom part of a bag body in a front-and-back wall sheet | seat. 請求項９又は請求項１０に記載の立体袋の製造装置において、癖折線形成手段が袋体の製袋装置内に組み込まれたことを特徴とする立体袋の製造装置。   The manufacturing apparatus for a three-dimensional bag according to claim 9 or 10, wherein the folding line forming means is incorporated in a bag-making apparatus for forming a bag body. 請求項９又は請求項１０に記載の立体袋の製造装置において、袋体がマチ形成手段によって膨張した際に癖折線形成手段により癖折線が前後壁シートに形成されるようにしたことを特徴とする立体袋の製造装置。   In the manufacturing apparatus of the three-dimensional bag of Claim 9 or Claim 10, when a bag body expand | swelled by the gusset formation means, a folding line was formed in the front-and-back wall sheet | seat by the folding line formation means, Manufacturing equipment for three-dimensional bags. 請求項９乃至請求項１２のいずれかに記載の立体袋の製造装置において、袋体の開放された一辺にジッパーを取り付けるジッパー取付手段を包含してなることを特徴とする立体袋の製造装置。   The three-dimensional bag manufacturing apparatus according to any one of claims 9 to 12, further comprising zipper attachment means for attaching a zipper to an open side of the bag body. 請求項９乃至請求項１３のいずれかに記載の立体袋の製造装置において、マチ形成手段が、被せられた袋体内で袋体の幅方向に拡開可能なマンドレルであることを特徴とする立体袋の製造装置。   The three-dimensional bag manufacturing apparatus according to any one of claims 9 to 13, wherein the gusset forming means is a mandrel that can be expanded in the width direction of the bag body within the covered bag body. Bag manufacturing equipment.
JP2005059431A 2005-03-03 2005-03-03 Three-dimensional bag and method and apparatus for manufacturing the same Expired - Fee Related JP4802518B2 (en)

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CN107512027A (en) * 2017-08-29 2017-12-26 温州欧伟机械股份有限公司 A kind of feeding cutter device

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CN107512027A (en) * 2017-08-29 2017-12-26 温州欧伟机械股份有限公司 A kind of feeding cutter device

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