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EP0993933B1 - Méthode de production de sacs plastiques à paroi multiple, en particulier à paroi double - Google Patents

Méthode de production de sacs plastiques à paroi multiple, en particulier à paroi double Download PDF

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Publication number
EP0993933B1
EP0993933B1 EP99118937A EP99118937A EP0993933B1 EP 0993933 B1 EP0993933 B1 EP 0993933B1 EP 99118937 A EP99118937 A EP 99118937A EP 99118937 A EP99118937 A EP 99118937A EP 0993933 B1 EP0993933 B1 EP 0993933B1
Authority
EP
European Patent Office
Prior art keywords
webs
web
flat
film
tube
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP99118937A
Other languages
German (de)
English (en)
Other versions
EP0993933A3 (fr
EP0993933A2 (fr
Inventor
Armin Meyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lemo Maschinenbau GmbH
Original Assignee
Lemo Maschinenbau GmbH
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 Lemo Maschinenbau GmbH filed Critical Lemo Maschinenbau GmbH
Publication of EP0993933A2 publication Critical patent/EP0993933A2/fr
Publication of EP0993933A3 publication Critical patent/EP0993933A3/fr
Application granted granted Critical
Publication of EP0993933B1 publication Critical patent/EP0993933B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16—Cutting webs
    • B31B70/18—Cutting webs longitudinally
    • 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
    • B31B2155/00—Flexible containers made from 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/106—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from sheets cut from larger sheets or webs before finishing the bag forming operations
    • 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
    • B31B2170/00—Construction of flexible containers
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/916—Pliable container
    • Y10S493/917—Envelope
    • Y10S493/922—Envelope having liner

Definitions

  • the invention relates to a method for producing multi-walled, preferably double-walled plastic bags, in particular drawstring bags at least one film web fed continuously from an unwinding station thermoplastic plastic.
  • the width of each film web corresponds to the output side twice the height or length of a finished plastic bag.
  • US 4,481,669 describes a process for the production of multi-walled bags Made of flexible plastic, with the layers one above the other in the longitudinal direction folded, flat web of a first flexible film on one edge opposite the Fold line to be opened at least partially and into the second flexible plastic film a deflection guide into the space between the two at least partially open Layers of the first plastic film is inserted around the fold line of the second Plastic film at least essentially in alignment with the fold line of the first Bring plastic wrap.
  • the two tracks move synchronously into one Direction to at a sealing station transverse to the direction of movement of the two webs to be sealed.
  • a number of open bags are formed, the bottom of which each through the aligned fold lines of the two panels and their opening area is formed by the edge of the web over the fold line.
  • the invention has for its object a method for producing multi-walled, preferably double-walled plastic bags, especially drawstring bags, to propose by processing foil webs in the form of tubular webs and / or flat films is significantly simplified and thus with the best possible quality comparatively high production speeds are possible.
  • This object is achieved in that several, for example two Foil sheets each double-layered compared to a single-layer sheet width, in. substantially half the web width unwound from an unwinding roll of the unwinding station and then be folded up to the full web width in one layer.
  • the advantages of such Procedures are obvious. For the extrusion a smaller plant and thus also requires a lower investment.
  • a film tube of, for example, 1000 mm width is easier to extrude than, for example, a film tube from 2000 mm width.
  • the tubular webs are in the running direction unfolded flat film webs fed, the film webs by appropriate Deflection devices are performed.
  • the hose tracks can also be essentially transverse to the direction of the fed flat, unfolded film webs and guided over turning bars.
  • An unwinding station 1 shown in FIG. 1, one not shown in detail Device for producing plastic bags 2, in particular drawstring bags, see above as shown in Figure 2, has a first unwinding roll 3 for feeding a first film web 4 and an unwinding roll 5 for feeding a second film web 6 on.
  • the film webs 4, 6 are each designed as a tubular web, for example has a width of 1000 mm.
  • the tubular web 4 can be cut through a cutting knife 7 a middle cut should be cut open so that there is a cut line on both sides lying edge areas of the film web 4 via a corresponding guide device 8 Unfold to the full width, i.e. 2000 mm.
  • the flat web unfolded in this way becomes via a deflecting rod 9 in a manner described in more detail below to a led individual bag making machines, not shown.
  • the unwind roll 5 is with Distance behind the unwinding roller 3 and the unwinding roller 5 is the likewise designed as a tubular web of film 6 also by a cutting knife 10 separated in the middle and led up and there also by one Deflection rod 11 folded so that this film web covers the first film web 4 to a folding device 12 upstream of the bag making machine with a Folding triangle 13 is supplied.
  • the two become opaque lying tube sheets folded in a U-shape to half the width, so that finally A double-layer film arrangement is formed on both sides, as is designated by 14 and finally, in a manner not of interest here, as known per se, the Plastic bag 2 or drawstring bag can be produced.
  • the respective tubular web 4 to 6 in Direction of the fed unfolded flat webs fed.
  • FIG. 6 shows a further modification of the procedure.
  • Winding rolls 3 5 semi-tubular webs 16, 17 wound, each with its own Folding triangle 18, 19 are unfolded into a flat sheet of film, which is then opaque are guided to another folding device 21.
  • the latter corresponds to about the folding device 13 in the embodiment variants of FIGS. 1 and 5.
  • the unwinding rolls are located. H. the unwind station 1, lower than that higher located turning and deflecting rods or folding triangles, so that the supplied half-wide film webs are led from bottom to top and then in substantially horizontally when the width is fully unfolded.

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  • Making Paper Articles (AREA)

Claims (10)

  1. Procédé de fabrication de sacs en matière synthétique (2) multiparois, de préférence à double paroi, en particulier des sacs à tirants, à partir d'au moins une feuille en bande (4, 6) en forme de feuille plane et/ou de tuyau souple en matière synthétique thermoplastique amenée en continu par un poste de déroulage (3), deux feuilles en bande (4, 6) par exemple étant d'abord réunies par superposition et ensuite pliées en forme de U, après quoi les couches de la bande sont fermées en les soudant par paire au moins dans la zone du haut, caractérisé en ce que plusieurs feuilles en bande (4, 6) sont déroulées d'un rouleau dérouleur (3) du poste de déroulage (1) chacune en double couche présentant une largeur de bande substantiellement de moitié par rapport à une largeur de bande à simple couche et ensuite dépliées en simple couche de manière à former une pleine largeur de bande, après quoi les feuilles en bande (4, 6) planes dépliées sont réunies de manière connue par superposition et ensuite pliées en forme de U, de façon à fabriquer, à partir des feuilles en bande (4, 6) pliées, les sacs en matière synthétique (2) dans une machine automatique de fabrication de sacs.
  2. Procédé selon la revendication 1, caractérisé en ce que les feuilles en bande (4, 6) à double couche enroulées sur les rouleaux dérouleurs (3) du poste de déroulage (1) sont conformées comme des bandes en forme de tuyau souple, lesquelles sont chacune ouvertes d'un côté de leur paroi au moyen d'une coupe longitudinale substantiellement médiane, après quoi les zones de bande se trouvant de chaque côté de la ligne de coupe sont dépliées de manière à former conjointement avec l'autre côté de la paroi du tuyau souple une feuille en bande (4, 6) plane de pleine largeur.
  3. Procédé selon la revendication 2, caractérisé en ce que la coupe longitudinale dans la bande en forme de tuyau souple est réalisée pendant la montée de la bande en forme de tuyau souple, laquelle a lieu substantiellement dans le sens vertical depuis le poste de déroulage (1) situé en contrebas vers un dispositif de renvoi (9, 11) situé plus haut.
  4. Procédé selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que les bandes en forme de tuyau souple sont amenées dans le sens de défilement des feuilles en bande (4, 6) dépliées de manière plane.
  5. Procédé selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que les bandes en forme de tuyau souple sont amenées substantiellement de manière transversale au sens de défilement des feuilles en bande (4, 6) dépliées de manière plane.
  6. Procédé selon la revendication 5, caractérisé en ce que les feuilles en bande (4, 6) sont guidées par des barres de renvoi (9, 10).
  7. Procédé selon la revendication 1, caractérisé en ce que plusieurs bandes en forme de demi-tuyau souple (16, 17), par exemple deux bandes, sont dépliées de manière à former des bandes planes à simple couche, lesquelles sont réunies par superposition et après avoir été pliées ensemble de manière à former un U sont transformées en sacs en matière synthétique (2) dans une machine de fabrication de sacs.
  8. Procédé selon la revendication 7, caractérisé en ce que les bandes en forme de demi-tuyau souple (16, 17) sont guidées depuis des rouleaux dérouleurs (3, 5) disposés à une certaine distance l'un à côté de l'autre vers des triangles de pliage (18, 19) de dispositifs de pliage situés plus haut, lesquels déploient les bandes en forme de demi-tuyau souple (16, 17) à la pleine largeur d'une bande plane.
  9. Dispositif selon la revendication 8, caractérisé en ce que les bandes planes sont guidées chacune derrière une barre de renvoi du dispositif de pliage (21) correspondant substantiellement dans un plan de guidage horizontal.
  10. Dispositif selon la revendication 9, caractérisé en ce qu'à la fin du plan de guidage, les bandes planes sont guidées substantiellement de manière verticale vers le bas par une barre de renvoi commune d'un autre dispositif de pliage (21) et pliées en forme de U par un triangle de pliage commun de l'autre dispositif de pliage (20), afin de fabriquer des sacs en matière synthétique (2).
EP99118937A 1998-10-14 1999-09-25 Méthode de production de sacs plastiques à paroi multiple, en particulier à paroi double Expired - Lifetime EP0993933B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19847321A DE19847321A1 (de) 1998-10-14 1998-10-14 Verfahren zum Herstellen von mehrwandigen, vorzugsweise doppelwandigen Kunststoffbeuteln, insbesondere Zugbandbeuteln
DE19847321 1998-10-14

Publications (3)

Publication Number Publication Date
EP0993933A2 EP0993933A2 (fr) 2000-04-19
EP0993933A3 EP0993933A3 (fr) 2000-05-24
EP0993933B1 true EP0993933B1 (fr) 2003-07-23

Family

ID=7884419

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99118937A Expired - Lifetime EP0993933B1 (fr) 1998-10-14 1999-09-25 Méthode de production de sacs plastiques à paroi multiple, en particulier à paroi double

Country Status (5)

Country Link
US (1) US6416452B1 (fr)
EP (1) EP0993933B1 (fr)
CA (1) CA2285819A1 (fr)
DE (2) DE19847321A1 (fr)
ES (1) ES2204043T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023109230A1 (de) * 2023-04-12 2024-10-17 Manroland Goss Web Systems Gmbh Vorrichtung und Verfahren zur Schlauchbildung

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US9393757B2 (en) * 2010-11-16 2016-07-19 The Glad Products Company Discontinuously laminated film structures with improved visual characteristics
US9604429B2 (en) 2010-11-16 2017-03-28 The Glad Products Company Ribbed film structures with pigment created visual characteristics
US9566760B2 (en) 2010-11-16 2017-02-14 The Glad Products Company Ribbed film structures with voiding agent created visual characteristics
US9381718B2 (en) * 2011-04-25 2016-07-05 The Glad Products Company Multi-layered films with visually-distinct regions and methods of making the same
US6635002B1 (en) * 2002-05-21 2003-10-21 Yong-Tsang Yeh Seal cutter for plastic bag
US8876382B2 (en) * 2009-09-03 2014-11-04 The Glad Products Company Embossed draw tape bag
US9637278B2 (en) 2008-10-20 2017-05-02 The Glad Products Company Non-continuously laminated multi-layered bags with ribbed patterns and methods of forming the same
US20100162665A1 (en) * 2008-12-31 2010-07-01 Ips Industries, Inc. Apparatus for manufacturing a bag pack
US20100166340A1 (en) * 2008-12-31 2010-07-01 Ips Industries, Inc. Pack of unfolded plastic bags
WO2010078225A2 (fr) * 2008-12-31 2010-07-08 Ips Industries, Inc. Appareil et procédé de fabrication d’un paquet de sacs
US20100167893A1 (en) * 2008-12-31 2010-07-01 Ips Industries, Inc. Method for manufacturing a bag pack
PL2246270T3 (pl) * 2009-04-29 2014-07-31 Scholle Ipn Corp Składana torba i sposób wytwarzania składanej torby
US9050783B2 (en) 2009-11-16 2015-06-09 The Glad Products Company Multi-layered bags with shortened inner layer
CN102180290A (zh) * 2011-04-15 2011-09-14 中山市新宏业自动化工业有限公司 一种多层薄膜包装袋供膜装置
CA2832649C (fr) * 2011-04-25 2018-11-20 The Glad Products Company Films thermoplastiques possedant des regions etirees visuellement distinctes, et procedes de fabrication de ces films
US9108380B2 (en) * 2011-08-19 2015-08-18 The Glad Products Company Trash bag with odor control and method of making same
US9315319B2 (en) 2012-01-25 2016-04-19 The Glad Products Company Continuous process for trash bag with inner bag
US9387957B2 (en) 2012-01-25 2016-07-12 The Glad Products Company Trash bag with inner bag
US9387955B2 (en) 2012-01-25 2016-07-12 The Glad Products Company Multi-layered thermoplastic bag with reinforced seals and methods of making the same
US9962898B1 (en) 2014-08-25 2018-05-08 James Russell Method of manufacturing a bottom gusseted pouch
US9434492B1 (en) 2014-08-25 2016-09-06 James Russell Method of filling a plurality of bottom gusseted pouches disposed on a roll
US9050770B1 (en) 2014-08-25 2015-06-09 James Russell Method of manufacturing a bottom gusseted pouch
CN105015038A (zh) * 2015-07-25 2015-11-04 蚌埠市天一包装制品有限责任公司 一种制袋机的内膜放卷架
CN106273667B (zh) * 2016-08-11 2018-05-08 厦门新旺新材料科技有限公司 全自动超声波束口袋制袋机设备
CN108943870A (zh) * 2018-09-14 2018-12-07 张坡 双层制袋机及其制袋工艺
CN110228229B (zh) * 2019-06-17 2021-07-30 徐州立峰塑料制品有限公司 一种塑料编织袋生产用制袋装置
WO2021035998A1 (fr) * 2019-08-23 2021-03-04 太仓市贤杰标准件厂 Machine de fabrication de sacs
CN110861355A (zh) * 2019-11-28 2020-03-06 安徽百盛源包装材料有限公司 一种包装材料加工用卷曲装置
CN112238651B (zh) * 2020-11-04 2022-03-18 揭西县绿雅印刷有限公司 一种环保包装袋成型加工方法

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Publication number Priority date Publication date Assignee Title
DE102023109230A1 (de) * 2023-04-12 2024-10-17 Manroland Goss Web Systems Gmbh Vorrichtung und Verfahren zur Schlauchbildung

Also Published As

Publication number Publication date
EP0993933A3 (fr) 2000-05-24
US6416452B1 (en) 2002-07-09
CA2285819A1 (fr) 2000-04-14
EP0993933A2 (fr) 2000-04-19
ES2204043T3 (es) 2004-04-16
DE19847321A1 (de) 2000-04-27
DE59906341D1 (de) 2003-08-28

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