WO2003055669A1 - Machine a fabriquer des sacs - Google Patents

Machine a fabriquer des sacs Download PDF

Info

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
Authority
WO
WIPO (PCT)
Prior art keywords
plastic film
bag
blade
blades
feed
Prior art date
Application number
PCT/JP2002/013714
Other languages
English (en)
Japanese (ja)
Inventor
Akira Nishibe
Original Assignee
Nishibe Kikai Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nishibe Kikai Co., Ltd. filed Critical Nishibe Kikai Co., Ltd.
Publication of WO2003055669A1 publication Critical patent/WO2003055669A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/10—Feeding or positioning webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16—Cutting 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

L'invention concerne une machine à fabriquer des sacs conçue pour fabriquer des sacs en plastique à partir d'un film en plastique. Le procédé de fabrication d'un sac consiste à introduire un film en plastique (1), de façon discontinue, dans la machine, à l'aide de premiers rouleaux d'entraînement (2) et de seconds rouleaux d'entraînement (3) synchronisés les uns avec les autres, la vitesse d'introduction correspondant à deux fois les dimensions d'un produit défini. La machine comprend une première série de lames (4) disposées entre les premiers rouleaux d'entraînement (2) et les seconds rouleaux d'entraînement (3) et une seconde série de lames (5) disposées en aval des seconds rouleaux d'entraînement (3), dans le sens d'introduction du film en plastique (1). Les premières lames (4) et les secondes lames (5) sont montées de façon mobile, pour que l'espace qui les sépare puisse être adapté aux dimensions du produit à fabriquer. Cette machine permet ainsi de fabriquer des sacs en plastique à une vitesse deux fois supérieure à la vitesse critique de la machine.
PCT/JP2002/013714 2001-12-26 2002-12-26 Machine a fabriquer des sacs WO2003055669A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001394162A JP2003191354A (ja) 2001-12-26 2001-12-26 製袋機
JP2001-394162 2001-12-26

Publications (1)

Publication Number Publication Date
WO2003055669A1 true WO2003055669A1 (fr) 2003-07-10

Family

ID=19188838

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/013714 WO2003055669A1 (fr) 2001-12-26 2002-12-26 Machine a fabriquer des sacs

Country Status (2)

Country Link
JP (1) JP2003191354A (fr)
WO (1) WO2003055669A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6178502B2 (ja) * 2013-05-29 2017-08-09 ボブスト メックス ソシエテ アノニム 連続ウェブ基材を変換するためのユニット、及びこれを備えた包装材製造装置
JP7234833B2 (ja) * 2019-07-04 2023-03-08 東洋製罐株式会社 製袋装置

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 (fr) * 1991-12-02 1993-06-03 Fritz Achelpohl Appareil pour faire des coutures transversales, des ruptures transversales et des perforations alignees transversalement dans des toiles tubulaires
EP0624458A1 (fr) * 1993-04-30 1994-11-17 Water-Line S.A. Procédé et appareil pour la fabrication de sacs en matière plastique, sous forme de feuilles, en particulier pour des boissons et de la nourriture
JPH11156962A (ja) * 1997-11-28 1999-06-15 Shinx Ltd 製袋機におけるプラスチックフィルムの移送装置

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 (fr) * 1991-12-02 1993-06-03 Fritz Achelpohl Appareil pour faire des coutures transversales, des ruptures transversales et des perforations alignees transversalement dans des toiles tubulaires
EP0624458A1 (fr) * 1993-04-30 1994-11-17 Water-Line S.A. Procédé et appareil pour la fabrication de sacs en matière plastique, sous forme de feuilles, en particulier pour des boissons et de la nourriture
JPH11156962A (ja) * 1997-11-28 1999-06-15 Shinx Ltd 製袋機におけるプラスチックフィルムの移送装置

Also Published As

Publication number Publication date
JP2003191354A (ja) 2003-07-08

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