EP0084880A2 - Dispositif pour le découpage transversal de bandes - Google Patents

Dispositif pour le découpage transversal de bandes Download PDF

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Publication number
EP0084880A2
EP0084880A2 EP83100595A EP83100595A EP0084880A2 EP 0084880 A2 EP0084880 A2 EP 0084880A2 EP 83100595 A EP83100595 A EP 83100595A EP 83100595 A EP83100595 A EP 83100595A EP 0084880 A2 EP0084880 A2 EP 0084880A2
Authority
EP
European Patent Office
Prior art keywords
pressure bar
web
cutting knife
counter
cross
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.)
Granted
Application number
EP83100595A
Other languages
German (de)
English (en)
Other versions
EP0084880A3 (en
EP0084880B1 (fr
Inventor
Fritz Achelpohl
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP0084880A2 publication Critical patent/EP0084880A2/fr
Publication of EP0084880A3 publication Critical patent/EP0084880A3/de
Application granted granted Critical
Publication of EP0084880B1 publication Critical patent/EP0084880B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/14—Means for treating work or cutting member to facilitate cutting by tensioning the work
    • 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
    • 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
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/003—Flexible containers made from webs starting from tubular 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
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1054—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing and simultaneously bonding [e.g., cut-seaming]
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1313—Cutting element simultaneously bonds [e.g., cut seaming]

Definitions

  • the invention relates to a device for cross-cutting webs made of thermoplastic, preferably tubular webs in the manufacture of bags, with a pair of preferred rollers which advance the web clockwise by a length of web section, a heated cross-cutting knife preferably arranged parallel to a cross-welding device, with a counter-pressure bar and with a pressure bar lowering onto the separate section or sections.
  • the front end of a tubular web is separated by a blowing air nozzle arranged on both sides thereof generated blown air stream stretched forward and by A b-lowering a cross seal bar and a cross cutting knife, the front web section forming a bag is separated and a cross weld seam is attached to the front cut of the web, which forms the bottom seam of the bag separated in the following cycle.
  • the cross-cutting knives are also heated due to their proximity to the heated sealing bar, the cutting of multilayer foils, for example a tubular web, can lead to blocking of the foil webs on the cut surface, which is particularly undesirable if the cut causes the opening edges Bag to be formed. Furthermore, the cut surfaces of the film web can stick to the cutting knife, which can result in malfunctions.
  • the object of the invention is therefore to improve a device of the type mentioned at the outset in such a way that the cut surfaces of multilayer webs, for example tubular webs, cannot become blocked by the separating cut and that, furthermore, cut surfaces stick to the cutting knife.
  • this object is achieved in that two pressure bars which can be lowered and raised on the separate section or sections are provided parallel to one another, the front of which, in the advancing direction, clamps the web end presented between the cutting knife and the counter-pressure bar against a base and the one between the cutting knife and the front
  • the pressure bar arranged in the pressure bar clamps the web clamped between the pair of preferred rollers and the front pressure bar before the heated cutting knife cuts through them.
  • the first pressure bar lowers first, so that the web section on which the transverse welding and cross cutting takes place between the pair of preferred rollers and the Print bar is clamped.
  • the second pressure bar is close G egendruckance lowered, the web is resiliently biased because the counter pressure bar with the lower level, in which the leading web end is clamped, forming a step. If the heated knife is now provided with a cross-section by the heated knife, the cut surfaces snap away from the heated knife.
  • the upper layer of the web first detaches from the cutting knife and then the lower one, i.e. since the cutting surfaces of these webs separate from the cutting knife one after the other, these webs are also moved relative to each other and pulled away from each other so that sticking or blocking of these cut surfaces is excluded.
  • the elastic tension additionally leads to the rear ends of the bags or sections being hit smoothly on the stack being formed.
  • the pressure bar that excites the web after it has been clamped can also simultaneously function as a slider needling the section edges onto a row of needles for fixing them.
  • the preferred rollers 1 and 2 advance the plastic tubular web 3 in cycles by one bag length and clamp them firmly between them. Blown air nozzles, not shown, can be provided for stretching the front end of the web. If a sufficiently long piece of tubular web has now been pulled forward by the preferred rollers 1 and 2, the hold-down consisting of the pressure bar 4 first lowers a counter bearing, so that the web in the manner shown in FIG. 2 between the preferred rollers 1, 2, on the one hand, and un the pressure bar 4 and the counter bearing 5 is clamped. Immediately thereafter, the pressure pad 6 travels in the strength in F from the position shown in Fig. 1 position.
  • the pressure bar 6 moves into the position shown in FIG. 3 and thereby presses the bag separated from the web onto the support bar 13 connected to the counter pressure bar 8.
  • the welding jaws 11 are still closed and the transverse weld seam is formed.
  • the support bar 13 has through holes through which needles 12 protrude upward, so that the separated bag is needled at the same time.
  • the needles 12 are firmly connected to the angled profile of the counter bearing 5.
  • the pressure bar 6 also has holes so that the individual bags can be pushed onto the needles 12 against the support bar 13.
  • the indentation 14 under the groove 7 in the counter pressure bar 8 serves for the compression-free storage of the bag edges.
  • the individual elements' then move back into the position shown in FIG. 1, so that the web 3 is advanced by a further section length, possibly with the aid of blowing air nozzles, from the preferred rollers 1, 2 can.
  • the counter bearing 5 moves down, the needles 12 being pulled out of the stack of bags.
  • the tipper roller 15, which is controlled by the piston-cylinder unit 16 lowers onto the conveyor belt 17, which is then switched on for the removal of the stacks 18 formed.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Replacement Of Web Rolls (AREA)
EP83100595A 1982-01-25 1983-01-24 Dispositif pour le découpage transversal de bandes Expired EP0084880B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3202272 1982-01-25
DE3202272 1982-01-25
DE3204492 1982-02-10
DE19823204492 DE3204492A1 (de) 1982-01-25 1982-02-10 Vorrichtung zum querschneiden von bahnen

Publications (3)

Publication Number Publication Date
EP0084880A2 true EP0084880A2 (fr) 1983-08-03
EP0084880A3 EP0084880A3 (en) 1985-01-30
EP0084880B1 EP0084880B1 (fr) 1988-06-01

Family

ID=25799072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100595A Expired EP0084880B1 (fr) 1982-01-25 1983-01-24 Dispositif pour le découpage transversal de bandes

Country Status (7)

Country Link
US (1) US4490207A (fr)
EP (1) EP0084880B1 (fr)
BR (1) BR8300138A (fr)
CA (1) CA1194401A (fr)
DE (1) DE3204492A1 (fr)
DK (1) DK159676C (fr)
ES (1) ES8402526A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566741A1 (fr) * 1984-07-02 1986-01-03 Lagain Georges Dispositif de coupe et de rangement de sacs en matiere plastique a la sortie d'une machine pour la fabrication de sacs
DE3700067A1 (de) * 1986-01-02 1987-07-09 Fmc Corp Vorrichtung zum herstellen und stapeln von beuteln
DE3713081A1 (de) * 1986-04-18 1987-10-29 Fmc Corp Vorrichtung zum herstellen und stapeln von taschen, beuteln u. dgl.
FR2625946A1 (fr) * 1988-01-15 1989-07-21 Lagain Georges Installation de fabrication et d'empilage de sacs, sachets, etc. en matiere thermoplastique
EP0448819A1 (fr) * 1990-03-26 1991-10-02 WindmÀ¶ller & Hölscher Procédé et dispositif pour former des piles de sacs retenues par des agrafes
WO1993018917A1 (fr) * 1992-03-24 1993-09-30 Ulrich Steinemann Ag Maschinenfabrik Procede, dispositif et installation pour la fabrication de stratifies
CN112895600A (zh) * 2021-02-23 2021-06-04 重庆鼎盛印务股份有限公司 包装袋生产用分切装置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623004A1 (de) * 1986-07-09 1988-01-28 Wolfgang Mohr Planschneidemaschine
IT1213658B (it) * 1987-07-28 1989-12-29 Colin Luis Dispositivo di saldatura,taglio, prelievo e accumulo in macchine per la fabbricazione di sacchetti in materiale plastico
DE3936515A1 (de) * 1989-11-02 1991-05-08 Windmoeller & Hoelscher Vorrichtung zum querschneiden und querschweissen von bahnen
DE4029440A1 (de) * 1990-09-17 1992-03-19 Windmoeller & Hoelscher Verfahren zum herstellen von kunststoffbeuteln
US6572724B1 (en) * 1992-03-10 2003-06-03 Gunther E. Asterlin Method for producing an improved seamless bag by heat sealing
CN1075034C (zh) * 1994-10-07 2001-11-21 四国化工机株式会社 狭带连接装置
DE19537833C1 (de) * 1995-10-11 1996-10-02 Bosch Gmbh Robert Quernahtsiegeleinrichtung an einer Schlauchbeutelmaschine
DE19728371C1 (de) * 1997-07-03 1999-01-14 Lemo Maschb Gmbh Vorrichtung zum Querschweißtrennen und stapelweisen Sammeln und Verblocken von aus einer Kunststoffolienbahn hergestellten Beuteln, insbesondere Hemdchentragetaschen
IT1391710B1 (it) * 2008-09-12 2012-01-27 Ciemme Group S R L Metodo e macchina per il taglio di un film plastico
US8776857B1 (en) 2013-02-04 2014-07-15 Computype, Inc. Label application devices

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1192392B (de) * 1957-07-17 1965-05-06 Albert E Luetzow Verfahren und Vorrichtung zum thermischen Trennen mehrerer flach aufeinanderliegender Bahnen aus thermoplastischem Material
DE1479421B1 (de) * 1964-06-03 1973-05-24 Hans Lehmacher Vorrichtung zum Schweissen und Trennen von thermoplastischen Kunststoff-Schlaeuchen oder zusammengelegten Kunststoff-Folien
US3384528A (en) * 1964-01-14 1968-05-21 Lehmacher Michael Apparatus for severing and welding of thermoplastic tubing film
DE1704168B2 (de) * 1967-03-18 1973-04-26 Lehmacher, Hans, 5215 Mondorf Vorrichtung zum querabtrennen und querschweissen von doppelt liegenden bahnen oder einem schlauch aus thermoplastischer kunststoffolie zum herstellen von beuteln, saecken oder dgl
IT1045882B (it) * 1972-04-11 1980-06-10 Lagain G Dispositivo impilatore di sacchi, particolarmente di materia plastica, alluscita della relativa macchina di fabbricazione
DE2236524A1 (de) * 1972-07-26 1974-02-14 Hans Lehmacher Vorrichtung zum herstellen von beuteln oder dergleichen verpackungen aus thermoplastischer kunststoffolie und deren stapelung
FR2194154A5 (fr) * 1972-07-28 1974-02-22 Lagain Georges
DE2254448A1 (de) * 1972-11-07 1974-05-22 Windmoeller & Hoelscher Verfahren und vorrichtung zur herstellung von beutelblocks aus thermoplastischem kunststoff
DE2354974A1 (de) * 1973-11-02 1975-05-07 Hans Lehmacher Verfahren und vorrichtung zum stapeln und ablegen von beuteln
DE2358281A1 (de) * 1973-11-22 1975-06-05 Windmoeller & Hoelscher Vorrichtung zur herstellung von beutelblocks aus thermoplastischer kunststoffolie
US3992981A (en) * 1975-11-19 1976-11-23 Fmc Corporation Web stripping apparatus
BE862009A (fr) * 1977-12-19 1978-04-14 Printex Procede pour la fabrication de liasses de sacs et machine pour la mise en oeuvre de ce procede
DE2833236C2 (de) * 1978-07-28 1982-11-25 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zum Herstellen und Stapeln von Kunststoffbeuteln
DE2833232C2 (de) * 1978-07-28 1983-09-08 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zum Herstellen von Hemdchenbeuteln aus einer mit Seitenfalten versehenen Kunststoffschlauchfolienbahn
DE2940399C2 (de) * 1979-10-05 1985-10-03 Hans 5216 Niederkassel Lehmacher Vorrichtung zum Stapeln von Kunststoffbeuteln

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566741A1 (fr) * 1984-07-02 1986-01-03 Lagain Georges Dispositif de coupe et de rangement de sacs en matiere plastique a la sortie d'une machine pour la fabrication de sacs
DE3700067A1 (de) * 1986-01-02 1987-07-09 Fmc Corp Vorrichtung zum herstellen und stapeln von beuteln
DE3713081A1 (de) * 1986-04-18 1987-10-29 Fmc Corp Vorrichtung zum herstellen und stapeln von taschen, beuteln u. dgl.
US4798573A (en) * 1986-04-18 1989-01-17 Fmc Corporation Machine for the manufacture and stacking of bags, pouches and the like made from a thermoplastic material
FR2625946A1 (fr) * 1988-01-15 1989-07-21 Lagain Georges Installation de fabrication et d'empilage de sacs, sachets, etc. en matiere thermoplastique
EP0329495A1 (fr) * 1988-01-15 1989-08-23 Georges Lagain Installation de fabrication et d'empilage de sacs, sachets, etc... en matière thermoplastique
EP0448819A1 (fr) * 1990-03-26 1991-10-02 WindmÀ¶ller & Hölscher Procédé et dispositif pour former des piles de sacs retenues par des agrafes
WO1993018917A1 (fr) * 1992-03-24 1993-09-30 Ulrich Steinemann Ag Maschinenfabrik Procede, dispositif et installation pour la fabrication de stratifies
US5518569A (en) * 1992-03-24 1996-05-21 Ulrich Steinemann Ag Process, device and installation for producing laminates
US5639335A (en) * 1992-03-24 1997-06-17 Ulrich Steinemann Ag Cutting process, device and installation for producing laminates
CN112895600A (zh) * 2021-02-23 2021-06-04 重庆鼎盛印务股份有限公司 包装袋生产用分切装置

Also Published As

Publication number Publication date
EP0084880A3 (en) 1985-01-30
DK159676C (da) 1991-04-29
ES519215A0 (es) 1984-02-16
CA1194401A (fr) 1985-10-01
DK29083A (da) 1983-07-26
DE3204492A1 (de) 1983-08-18
DK29083D0 (da) 1983-01-25
ES8402526A1 (es) 1984-02-16
EP0084880B1 (fr) 1988-06-01
US4490207A (en) 1984-12-25
BR8300138A (pt) 1983-10-04
DK159676B (da) 1990-11-19
DE3204492C2 (fr) 1993-03-18

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