WO2003055669A1 - Bag-making machine - Google Patents

Bag-making machine Download PDF

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Publication number
WO2003055669A1
WO2003055669A1 PCT/JP2002/013714 JP0213714W WO03055669A1 WO 2003055669 A1 WO2003055669 A1 WO 2003055669A1 JP 0213714 W JP0213714 W JP 0213714W WO 03055669 A1 WO03055669 A1 WO 03055669A1
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WO
WIPO (PCT)
Prior art keywords
plastic film
bag
blade
blades
feed
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Application number
PCT/JP2002/013714
Other languages
French (fr)
Japanese (ja)
Inventor
Akira Nishibe
Original Assignee
Nishibe Kikai Co., Ltd.
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Publication date
Application filed by Nishibe Kikai Co., Ltd. filed Critical Nishibe Kikai Co., Ltd.
Publication of WO2003055669A1 publication Critical patent/WO2003055669A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00Making flexible containers, e.g. envelopes or bags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00Making flexible containers, e.g. envelopes or bags
    • B31B70/02Feeding or positioning sheets, blanks or webs
    • B31B70/10Feeding or positioning webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00Shape of flexible containers
    • B31B2160/10Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00Making flexible containers, e.g. envelopes or bags
    • B31B70/14Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16Cutting webs

Definitions

  • the present invention relates to a bag making machine for manufacturing plastic bags and the like, and more particularly to a cutting machine for completing bag making in the final stage by using two cutting blades. It relates to a bag making machine that manufactures bags by simultaneously cutting once, while sending plastic film intermittently twice the product size in the length direction.
  • a plurality of layers of a continuous plastic film have been intermittently fed in the length direction thereof.
  • a bag making machine for cutting the plastic film by the above-described method, thereby producing a plastic bag.
  • a plurality of layers of a continuous plastic film are intermittently fed in the longitudinal direction, and a bag drive is formed by a cutter driving mechanism that cuts with a cutter every time the plastic film is intermittently fed. Then, it was impossible to make bags at a speed higher than the limit speed of the bag making machine.
  • the present invention sets the interval between the two cutting blades to be the same as the product size, and makes the intermittent feed dimension of the film twice the product size, thereby simultaneously using the two cutting blades. Synchronous cutting is performed, then the film is moved by feeding twice the product size, and then cut simultaneously by two cutting blades. It is an object of the present invention to provide a bag making machine that manufactures bags by intermittently feeding twice the product size and cutting the feed with two cutting blades. Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a continuous plastic film intermittently fed in the length direction thereof, and a plurality of heaters for each intermittent feeding of the plastic film.
  • the plastic film After heat-sealing the plastic film, the plastic film is slit along a lengthwise slit line by a slit blade, and the plastic film is further cut by a cutting blade.
  • the feed dimensions of the plastic film should be twice as large as the product dimensions set by the synchronized first feed roll and second feed roll.
  • a pair of first blades and a pair of second blades are provided in front of the second feed roll, and the distance between the first and second blades is set.
  • the technical means of movably providing the product size was adopted.
  • FIG. 1 The first embodiment shown in FIG. 1 will be described.
  • a continuous plastic film is superposed in a plurality of layers, and this is intermittently sent in the length direction.
  • the plastic film 1 is heat-sealed by a plurality of heaters. Normally, when the plastic film 1 is heat-sealed in parallel with the feeding direction, a vertical sealing portion is formed in the plastic film 1.
  • the plastic film 1 undergoes heat transfer at right angles to the feed direction, so that a horizontal seal portion is formed in the plastic film 1.
  • the plastic film 1 is fed to the slit blade portion, and the plastic film 1 is slit in the center position of the vertical seal portion in parallel with the feeding direction. After that, the plastic film 1 is sent to the cutter, and is intermittently fed by twice the length of the product dimensions of the plastic film 1. Therefore, the plastic film 1 is cut, and the plastic film 1 is cut at right angles to the feed direction near the horizontal seal portion. This produces a plastic bag.
  • the center dove and a part of the corner are punched by a punching tool at the intersection of the vertical seal portion and the horizontal seal portion, and a hole is formed in the plastic film 1.
  • the plastic film 1 is cut by the cutter at the center position of the hole, whereby the plastic bag is corner-cut.
  • two sets of cutting devices are provided, and each of the cutting devices is moved and fixed by a sensor such as a photoelectric tube so as to be controlled corresponding to each dimension using a conventionally known moving means and fixing means.
  • Various positions can be selected as the installation position of this sensor as long as it is upstream of the final cutting device.
  • the moving means for example, a mechanism for sliding and fixing on a rail is provided, and can be moved and fixed according to the size of the bag to be made.
  • the plastic film 1 is rotated by a servo motor in the direction of the arrow so as to be intermittently fed between the pair of second feed rolls 3 similarly to the pair of first feed rolls 2.
  • the first feed roll 2 and the second feed roll 3 are connected and driven synchronously by a belt or a gear so as to be able to perform a double feed of a set size twice as long as the set product size.
  • the first blade 4 is disposed between the first feed roll 2 and the second feed roll 3, and the second blade 5 is located at the end of the second feed roll 3, that is, for the plastic film 1. It is arranged at an appropriate position in front of the traveling direction.
  • the distance between the first blade 4 and the second blade 5 can be moved so as to be the product size, and the space can be controlled according to the set product size.
  • the plastic film 1 fed by the first feed roll 2 and the second feed roll 3 is intermittently fed by a length twice as large as the set product size.
  • Blade 5 is not cut, that is, the first blade 4 and the second blade 5 are
  • the first blade 4 is located at one end of the second product dimension, for example, at the bottom of the second blade
  • the second blade 5 is One end of the product dimensions, for example, the bottom part of the first bag, that is, the position where the two bags are cut intermittently is arranged so that the first bag and the second bottom part can always be cut. ing.
  • both the heater drive and the intermittent feed drive are driven by, for example, a servo motor.
  • the plastic film 1 heat-sealed several times on the feed path is slit by the slit blade of the feed roll, and the plastic film 1 is intermittently passed between the pair of first feed holes 2 and the pair of second feed rolls 3.
  • the first feed roller 2 and the second feed roller 3 are synchronously driven by a drive source such as a servomotor, and intermittently feed twice the product size as the feed amount.
  • the first blade 4 and the second blade 5 perform a cutting action, that is, the upper blade descends and cuts each time the intermittently fed plastic film 1 is intermittently fed.
  • the first blade 4 and the second blade 5, which are arranged vertically and horizontally and sent intermittently with the plastic film 1 according to the product dimensions, are synchronized and cut simultaneously. I do. This is done by cutting the bottom of the first bag into a second blade 5 and cutting it off, cutting the bottom of the next second bag with the first blade 4 and simultaneously cutting the two bags. It is to be manufactured.
  • FIG. 1 is a schematic plan view showing a relevant position of a feed roll and a blade in one embodiment of the present invention. Explanation of reference numerals

Abstract

A bag-making machine capable of manufacturing plastic bags with a plastic film, wherein the plastic film (1) is intermittently fed by first feed rolls (2) and second feed rolls (3) in synchronism with each other and each feed rate thereof is set to twice a set product size, a set of first blades (4) are installed between the first feed rolls (2) and the second feed rolls (3) and a set of second blades (5) are installed on the downstream side of the second feed rolls (3) in the feeding direction of the plastic film (1), and the first blades (4) and the second blades (5) are installed movable so that an interval therebetween can be adjusted to the set product size, whereby the plastic bags can be manufactured at a speed twice the critical speed of the bag-making machine.

Description

明細書 製袋機 発明の属する技術分野 本発明は、 プラスチック袋等を製造する製袋機、 特に最終段における製袋完成 のための切断を 2個の切断刃により行い、 2個の切断刃を同時に 1度切断するの に対して、 プラスチックフィルムをその長さ方向に製品寸法の 2倍分間欠的に送 ることによって袋を製造する製袋機に関するものである。  Description Bag making machine TECHNICAL FIELD The present invention relates to a bag making machine for manufacturing plastic bags and the like, and more particularly to a cutting machine for completing bag making in the final stage by using two cutting blades. It relates to a bag making machine that manufactures bags by simultaneously cutting once, while sending plastic film intermittently twice the product size in the length direction.
従来の技術 従来、 複数層の連続プラスチックフィルムをその長さ方向に間欠的に送り、 前 記プラスチックフィルムの間欠送り毎に、 ヒータによつて前記プラスチックフィ ルムをヒートシール、 1枚の力ッタによって前記プラスチックフィルムを切断し、 これによつてプラスチック袋を製造する製袋機は存在している。 発明が解決しょうとする課題 前記従来技術では、 複数層の連続プラスチックフィルムをその長さ方向に間欠 的に送り、 該プラスチックフィルムの間欠送り毎に、 カツタで切断するカツタ駆 動機構とで製袋すると、 その製袋機の限界速度以上の速度で製袋することは不可 能であった。  2. Description of the Related Art Conventionally, a plurality of layers of a continuous plastic film have been intermittently fed in the length direction thereof. There is a bag making machine for cutting the plastic film by the above-described method, thereby producing a plastic bag. According to the conventional technique, a plurality of layers of a continuous plastic film are intermittently fed in the longitudinal direction, and a bag drive is formed by a cutter driving mechanism that cuts with a cutter every time the plastic film is intermittently fed. Then, it was impossible to make bags at a speed higher than the limit speed of the bag making machine.
本発明は、この事情に鑑み、 2枚の切断刃の配置間隔は、製品寸法と同一にし、 フィルムの間欠送り寸法を製品寸法の 2倍にすることにより、 2枚の切断刃によ つて同時に同期切断し、 続いてライルムを製品寸法の 2倍分の送りを行って移動 したら、 続いて 2枚の切断刃によって同時に切断する。 このように製品寸法の 2 倍分を間欠送りして、 この送りに対して 2枚の切断刃で切断を行うことにより袋 を製造する製袋機を提供することを目的とするものである。 課題を解決するための手段 本発明は、 前記の課題を解決するために、 連続プラスチックフィルムをその長 さ方向に間欠的に送り、 前記プラスチックフィルムの間欠送り毎に、 複数段のヒ ータによって前記プラスチックフィルムをヒートシールした後、 長さ方向スリッ ト線に沿って、 スリット刃によってスリットし、 さらに切断刃によって前記プラ スチックフィルムを切断し、 これによつてプラスチック袋を製造する製袋機にお いて、 プラスチックフィルムの送り寸法は、 同期された第 1送りロール、 第 2送 りロールにより設定した製品寸法の 2倍分を送ることができるようにし、 この第 1送りローノレと第 2送りロール間に 1組の第 1の刃と、 第 2送りロールの前方に 1組の第 2の刃を設け、 この第 1の刃、 第 2の刃の間隔は設定した製品寸法にす ることができるように移動可能に設けるという技術手段を採用した。 発明の実施の形態 以下、 本発明の実施例を添付図面で詳細に説明する。 In view of this situation, the present invention sets the interval between the two cutting blades to be the same as the product size, and makes the intermittent feed dimension of the film twice the product size, thereby simultaneously using the two cutting blades. Synchronous cutting is performed, then the film is moved by feeding twice the product size, and then cut simultaneously by two cutting blades. It is an object of the present invention to provide a bag making machine that manufactures bags by intermittently feeding twice the product size and cutting the feed with two cutting blades. Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a continuous plastic film intermittently fed in the length direction thereof, and a plurality of heaters for each intermittent feeding of the plastic film. After heat-sealing the plastic film, the plastic film is slit along a lengthwise slit line by a slit blade, and the plastic film is further cut by a cutting blade. In addition, the feed dimensions of the plastic film should be twice as large as the product dimensions set by the synchronized first feed roll and second feed roll. A pair of first blades and a pair of second blades are provided in front of the second feed roll, and the distance between the first and second blades is set. The technical means of movably providing the product size was adopted. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
図 1に示す第 1実施例について説明すると、 プラスチックフィルム 1等により 袋を製造する製袋機で、 連続プラスチックフィルムが複数層に重ね合わされ、 こ れがその長さ方向に間欠的に送られる。 このプラスチックフィルム 1の間欠送り 毎に複数段のヒータによってプラスチックフィルム 1がヒートシールされる。 普 通、 プラスチックフィルム 1がその送り方向に対して平行にヒートシールするこ とにより、プラスチックフィルム 1に縦シール部分が形成される。これと同時に、 プラスチックフィルム 1がその送り方向に対して直角にヒートシ一ノレすることに より、 プラスチックフィルム 1に横シール部分が形成される。  The first embodiment shown in FIG. 1 will be described. In a bag making machine for manufacturing a bag with a plastic film 1 or the like, a continuous plastic film is superposed in a plurality of layers, and this is intermittently sent in the length direction. Each time the plastic film 1 is intermittently fed, the plastic film 1 is heat-sealed by a plurality of heaters. Normally, when the plastic film 1 is heat-sealed in parallel with the feeding direction, a vertical sealing portion is formed in the plastic film 1. At the same time, the plastic film 1 undergoes heat transfer at right angles to the feed direction, so that a horizontal seal portion is formed in the plastic film 1.
さらに、 プラスチックフィルム 1がスリット刃部分に送られ、 縦シール部分の 中心位置において、 プラスチックフィルム 1がその送り方向に平行にスリットさ れる。 その後、 プラスチックフィルム 1がカツタに送られ、 プラスチックフィル ム 1の製品寸法の 2倍の長さ分だけ間欠送りされ、 この間欠送り毎に、 カツタに よってプラスチックフィルム 1が切断され、 横シール部分付近において、 プラス チックフィルム 1がその送り方向に直角に切断される。 これによつてプラスチッ ク袋が製造される。 Further, the plastic film 1 is fed to the slit blade portion, and the plastic film 1 is slit in the center position of the vertical seal portion in parallel with the feeding direction. After that, the plastic film 1 is sent to the cutter, and is intermittently fed by twice the length of the product dimensions of the plastic film 1. Therefore, the plastic film 1 is cut, and the plastic film 1 is cut at right angles to the feed direction near the horizontal seal portion. This produces a plastic bag.
また、 製品によってはプラスチックフィルム 1の切断前、 その縦シール部分と 横シール部分の交差領域において、 打ち抜き工具によってセンタードブとコーナ 一部が打ち抜かれ、 プラスチックフィルム 1に抜き穴が形成される。 その後、 抜 き穴の中心位置で、 カツタによってプラスチックフィルム 1が切断され、 これに よってプラスチック袋がコーナーカットされる。 そして、 切断装置を 2組設け、 各切断装置は従来公知の移動手段と固定手段を用いて、 各寸法に対応して制御す るように光電管等のセンサーによって移動、 固定する。 なお、 このセンサーの設 置位置としては最終切断装置の上流であれば、 種々な位置が選択できる。 また、 移動手段としては例えば、 レール上をスライドさせて固定させる機構を設けたも のであり、 その製袋する袋の寸法に合わせ移動、 固定できるようにしたもの等で ある。  Also, depending on the product, before cutting the plastic film 1, the center dove and a part of the corner are punched by a punching tool at the intersection of the vertical seal portion and the horizontal seal portion, and a hole is formed in the plastic film 1. Then, the plastic film 1 is cut by the cutter at the center position of the hole, whereby the plastic bag is corner-cut. Then, two sets of cutting devices are provided, and each of the cutting devices is moved and fixed by a sensor such as a photoelectric tube so as to be controlled corresponding to each dimension using a conventionally known moving means and fixing means. Various positions can be selected as the installation position of this sensor as long as it is upstream of the final cutting device. Further, as the moving means, for example, a mechanism for sliding and fixing on a rail is provided, and can be moved and fixed according to the size of the bag to be made.
図 1に示すように、 プラスチックフィルム 1は矢印方向にサーボモータの回転 で一対の第 1送りローノレ 2と同じく一対の第 2送りロール 3間を間欠送りされる ように回転させる。 第 1送りロール 2と第 2送りロール 3はベルト、 あるいはギ ャ等で連結同期駆動し、 設定した製品寸法の 2倍分の一定寸法分間欠送りできる ようになつている。  As shown in FIG. 1, the plastic film 1 is rotated by a servo motor in the direction of the arrow so as to be intermittently fed between the pair of second feed rolls 3 similarly to the pair of first feed rolls 2. The first feed roll 2 and the second feed roll 3 are connected and driven synchronously by a belt or a gear so as to be able to perform a double feed of a set size twice as long as the set product size.
そして、 この実施例では、 第 1の刃 4は第 1送りロール 2と第 2送りロール 3 間に配置し、 そして第 2の刃 5は第 2送りロール 3の先方、 すなわちプラスチッ クフィルム 1の進行方向前方の適宜位置に配置する。 しかもこの第 1の刃 4と第 2の刃 5との間隔は製品寸法になるように移動可能になっていて、 その設定した 製品寸法に対応して間隔を制御できるものである。  In this embodiment, the first blade 4 is disposed between the first feed roll 2 and the second feed roll 3, and the second blade 5 is located at the end of the second feed roll 3, that is, for the plastic film 1. It is arranged at an appropriate position in front of the traveling direction. In addition, the distance between the first blade 4 and the second blade 5 can be moved so as to be the product size, and the space can be controlled according to the set product size.
そして、 第 1送りロール 2と第 2送りロール 3によって送られるプラスチック フィルム 1は、 設定した製品寸法の 2倍分だけの長さ間欠的に送られる。  Then, the plastic film 1 fed by the first feed roll 2 and the second feed roll 3 is intermittently fed by a length twice as large as the set product size.
このように 2枚の切断刃 4、 5の同時切断と、 第 1、 第 2送りロール 2、 3の 送り量の設定によって、 図 1からも理解できるように、 第 1の刃 4と第 2の刃 5 は切断しない状態、 すなわち第 1の刃 4と第 2の刃 5はプラスチックフィルム 1 から離れ上昇していて、 しかも、 カット位置も第 1の刃 4は、 2個目の製品寸法 の一端部、 例えば 2個目のボトム部に位置し、 第 2の刃 5は 1個目の製品寸法の 一端部、 例えば 1個目のボトム部、 すなわち袋 2個分を間欠的に送ることで切断 する位置を 1個目の袋と 2個目のボトム部を常に切断できるように配置されてい る。 Thus, by simultaneous cutting of the two cutting blades 4 and 5 and setting of the feed amounts of the first and second feed rolls 2 and 3, as can be understood from FIG. Blade 5 is not cut, that is, the first blade 4 and the second blade 5 are The first blade 4 is located at one end of the second product dimension, for example, at the bottom of the second blade, and the second blade 5 is One end of the product dimensions, for example, the bottom part of the first bag, that is, the position where the two bags are cut intermittently is arranged so that the first bag and the second bottom part can always be cut. ing.
これを踏まえ、 本発明では、 制御を容易にするためにヒータ駆動も間欠送り駆 動も、 例えばサ一ボモータにより駆動するものを採用している。  Based on this, in the present invention, for facilitating the control, both the heater drive and the intermittent feed drive are driven by, for example, a servo motor.
次に、 作動について図 1に基づいて説明する。  Next, the operation will be described with reference to FIG.
まず、 送り経路上で複数回ヒートシールされたプラスチックフィルム 1を送り ロールのスリット刃でスリットし、 プラスチックフィルム 1を一対の第 1送り口 ール 2並びに一対の第 2送りローノレ 3間を通して間欠的に送るもので、 第 1送り ローノレ 2、 第 2送りローノレ 3をサーボモータ等の駆動源で同期駆動させ間欠的に 送り量として製品寸法の 2倍分を送る。  First, the plastic film 1 heat-sealed several times on the feed path is slit by the slit blade of the feed roll, and the plastic film 1 is intermittently passed between the pair of first feed holes 2 and the pair of second feed rolls 3. The first feed roller 2 and the second feed roller 3 are synchronously driven by a drive source such as a servomotor, and intermittently feed twice the product size as the feed amount.
そして、 第 1の刃 4と第 2の刃 5は、 前記間欠的に送られるプラスチックフィ ルム 1の間欠送り毎に、 切断作用すなわち上側の刃が下降して切断するものであ る。  The first blade 4 and the second blade 5 perform a cutting action, that is, the upper blade descends and cuts each time the intermittently fed plastic film 1 is intermittently fed.
このような構成により、 縦、 横シールされて間欠的に送られてくるプラスチッ クフィルム 1を製品寸法に配置された第 1の刃 4と第 2の刃 5は、 同期されて同 時に切断作動する。 これは 1個目の袋のボトム部を第 2の刃 5に切断されて切り 離され、 第 1の刃 4で次の 2個目の袋のボトム部を切断して同時に 2個の袋を製 造するものである。  With such a configuration, the first blade 4 and the second blade 5, which are arranged vertically and horizontally and sent intermittently with the plastic film 1 according to the product dimensions, are synchronized and cut simultaneously. I do. This is done by cutting the bottom of the first bag into a second blade 5 and cutting it off, cutting the bottom of the next second bag with the first blade 4 and simultaneously cutting the two bags. It is to be manufactured.
すなわち、 第 1送りローノレ 2と第 2送りロール 3が同期しながら製品寸法の 2 倍分送り出し、 第 2の刃 5の位置より 1個目の袋分だけ先に送り出された状態で 停止し、 先に述べたように第 1の刃 4、 第 2の刃 5が同期して 1個目の袋のボト ム部と 2個目の袋のボトム部を同時に切断する。 このように繰り返すことで製品 を順次、その装置の限界速度に対して 2倍のスピードで製造していくものである c 発明の効果 本発明は、 以上の構成を採用した結果、 次のような効果を得ることができる。 (1) 2本の送りロールによるプラスチックフィルムを製品寸法の 2倍の送り量 に設定し、 2枚の刃物を製品寸法に合致した間隔で配置することで、 その製袋機 の限界速度を維持しながら 2倍の速度で製袋できるものである。 図面の簡単な説明 図 1は本発明の 1実施例における送りロール、 刃物の関連位置を示す概略平面 図である。 符号の説明 That is, the first feed roller 2 and the second feed roll 3 are synchronized and sent out twice the product size, and stopped after being sent out by the first bag from the position of the second blade 5, As described above, the first blade 4 and the second blade 5 synchronously cut the bottom of the first bag and the bottom of the second bag simultaneously. The effect of such a product sequentially by repeating it in, c invention is intended to continue to manufacture at twice the speed for the limit speed of the device According to the present invention, the following effects can be obtained as a result of employing the above configuration. (1) Maintain the speed limit of the bag making machine by setting the feed rate of the plastic film with two feed rolls to twice the product size and arranging the two blades at intervals that match the product size It can make bags at twice the speed. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan view showing a relevant position of a feed roll and a blade in one embodiment of the present invention. Explanation of reference numerals
1 · ··'プラスチックフィルム 2''.'第1送りロール  1 ··· 'Plastic film 2' '.' 1st feed roll
3 ····第 2送りロール 4····第 1の刃  3 2nd feed roll 4 1st blade
5 ····第 2の刃  5 ... second blade

Claims

'請求の範囲 'The scope of the claims
1 . 連続プラスチックフィルムをその長さ方向に間欠的に送り、 前記プラスチ ックフィルムの間欠送り毎に、 複数段のヒータによって前記プラスチックフィル ムをヒートシールした後、 長さ方向スリ ット線に沿って、 スリ ッ ト刃によってス リットし、 さらに切断刃によって前記プラスチックフィルムを切断し、 これによ つてプラスチック袋を製造する製袋機において、 プラスチックフィルムの送り寸 法は、 同期された第 1送りロール、 第 2送りロールにより設定した製品寸法の 2 倍分を送ることができるようにし、 この第 1送りローノレと第 2送りロール間に 1 組の第 1の刃と、第 2送りロールの前方に 1組の第 2の刃を設け、この第 1の刃、 第 2の刃の間隔は設定した製品寸法にすることができるように移動可能に設けた ことを特徴とする製袋機。  1. A continuous plastic film is intermittently fed in its length direction, and after each intermittent feeding of the plastic film, the plastic film is heat-sealed by a plurality of heaters and then along a longitudinal slit line. In a bag making machine that slits the plastic film with a slit blade and further cuts the plastic film with a cutting blade and thereby manufactures a plastic bag, the feeding dimension of the plastic film is synchronized with the first feed roll. The second feed roll is capable of feeding twice the product size set, and a pair of first blades is provided between the first feed roll and the second feed roll, and a set of blades is provided in front of the second feed roll. A set of second blades is provided, and the distance between the first blade and the second blade is provided so as to be movable so that the product dimensions can be set. Bag-making machine for.
PCT/JP2002/013714 2001-12-26 2002-12-26 Bag-making machine WO2003055669A1 (en)

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WO2014191095A1 (en) * 2013-05-29 2014-12-04 Bobst Mex Sa Unit for transforming a substrate in a continuous band and wrapping production machine equipped with same
JP7234833B2 (en) * 2019-07-04 2023-03-08 東洋製罐株式会社 bag making equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505699A (en) * 1982-03-03 1985-03-19 Totani Giken Kogyo Kabushiki Kaisha Apparatus for making envelopes from a continuous film sheet
US5038648A (en) * 1990-08-17 1991-08-13 Mazda Motor Manufacturing (Usa) Corporation Adjustable shear blade blanking press with automatically centered blank pusher
CA2084372A1 (en) * 1991-12-02 1993-06-03 Fritz Achelpohl Apparatus for producing transverse weld seams, transverse severing cuts and, respectively, transverse lines of perforations in tubular webs
EP0624458A1 (en) * 1993-04-30 1994-11-17 Water-Line S.A. Method and apparatus for manufacturing bags out of a plastics film, especially for beverages and foodstuffs
JPH11156962A (en) * 1997-11-28 1999-06-15 Shinx Ltd Transferring device of plastic film in bag making machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505699A (en) * 1982-03-03 1985-03-19 Totani Giken Kogyo Kabushiki Kaisha Apparatus for making envelopes from a continuous film sheet
US5038648A (en) * 1990-08-17 1991-08-13 Mazda Motor Manufacturing (Usa) Corporation Adjustable shear blade blanking press with automatically centered blank pusher
CA2084372A1 (en) * 1991-12-02 1993-06-03 Fritz Achelpohl Apparatus for producing transverse weld seams, transverse severing cuts and, respectively, transverse lines of perforations in tubular webs
EP0624458A1 (en) * 1993-04-30 1994-11-17 Water-Line S.A. Method and apparatus for manufacturing bags out of a plastics film, especially for beverages and foodstuffs
JPH11156962A (en) * 1997-11-28 1999-06-15 Shinx Ltd Transferring device of plastic film in bag making machine

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