EP0084880B1 - Dispositif pour le découpage transversal de bandes - Google Patents
Dispositif pour le découpage transversal de bandes Download PDFInfo
- Publication number
- EP0084880B1 EP0084880B1 EP83100595A EP83100595A EP0084880B1 EP 0084880 B1 EP0084880 B1 EP 0084880B1 EP 83100595 A EP83100595 A EP 83100595A EP 83100595 A EP83100595 A EP 83100595A EP 0084880 B1 EP0084880 B1 EP 0084880B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bar
- cutting knife
- backpressure
- pressure bar
- needles
- 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
Links
Images
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 tubular webs of thermoplastic material in the production of bags and for stacking the bags, with a pair of preferred rollers which cyclically advance the tubular web by a length of a web section, a heated cross-cutting knife with counter-pressure bar and arranged parallel to a cross-welding device pressure bar lowering onto the separate bag or bags.
- the front end of a tubular web is stretched out by a blow air stream generated by blow air nozzles arranged on both sides thereof by lowering a cross-welding bar and a cross-cutting knife, the front web section, each forming a bag, is cut off and, in addition to the cut, a cross-weld seam is attached to the front end of the web, which forms the bottom seam of the bag cut off in the following cycle.
- the cross-cutting knives are also heated due to their proximity to the heated sealing bar, when cutting multilayer foils, for example a tubular web, the foil webs may become blocked on the cut surface, which is particularly undesirable if the cut causes the opening edges of a bag should 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 specified at the outset (according to DE-A-2 254 448) in such a way that the cut surfaces of multi-layered webs, for example tubular webs, cannot block with one another due to the separating cut and that gluing continues of cutting surfaces on the cutting knife is avoided.
- this object is achieved in that two pressure bars, which can be lowered and raised on the separate section or sections, are provided in parallel, of which the front end in the advancing direction, the web end carried between the cutting knife and the counter pressure bar, against a base in a plane lower than the counter pressure bar clamped and the pressure bar arranged between the cutting knife and the front 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, and that below the pressure bar tensioning the web a needle row is arranged on a carrier on which the with corresponding cutouts or holes, the section edges needles after the separating cut.
- 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. If the second pressure bar is now lowered just in front of the counter pressure bar, the web is stretched elastically, since the counter pressure bar forms a step with the lower level in which the front web end is clamped. 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 comes off the cutting knife and then the lower one. Since the cut surfaces of these strips separate from the cutting knife one after the other when cutting multilayer strips, these are also moved relative to one another and pulled away from one another, so that sticking or blocking of these cut surfaces is precluded.
- 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 is 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 advanced by the preferred rollers 1 and 2, the never existing from the pressure bar 4 lowers first derhalter on a counter bearing, so that the web is clamped in the manner shown in FIG. 2 between the preferred rollers 1, 2 on the one hand and the pressure bar 4 and the counter bearing 5. Immediately thereafter, the pressure bar 6 moves from the position shown in FIG. 1 into the position shown in FIG. 2 and presses the web downward so strongly that the web lies with tension over the groove 7 of the counter pressure bar 8. The web 3 is then cut by lowering the upper separating knife holder 9 with the transverse cutting knife 10 attached to it, and simultaneously or immediately thereafter the bottom seam is formed by the permanently heated pair of welding jaws 11.
- 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 welding 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 bores 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 from the position shown in FIG. 3 to the position shown in FIG. 1, so that the web 3 can be advanced by a further section length, if necessary with the aid of blowing air nozzles, from the preferred rollers 1, 2 .
- 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)
Claims (4)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3202272 | 1982-01-25 | ||
DE3202272 | 1982-01-25 | ||
DE19823204492 DE3204492A1 (de) | 1982-01-25 | 1982-02-10 | Vorrichtung zum querschneiden von bahnen |
DE3204492 | 1982-02-10 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0084880A2 EP0084880A2 (fr) | 1983-08-03 |
EP0084880A3 EP0084880A3 (en) | 1985-01-30 |
EP0084880B1 true 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) | ES519215A0 (fr) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2566741B1 (fr) * | 1984-07-02 | 1987-08-07 | Lagain Georges | Dispositif de coupe et de rangement de sacs en matiere plastique a la sortie d'une machine pour la fabrication de sacs |
FR2592333A1 (fr) * | 1986-01-02 | 1987-07-03 | Lagain Georges | Installation de fabrication et d'empilage de sacs, sachets, etc. en matiere thermoplastique |
FR2597401B1 (fr) * | 1986-04-18 | 1988-08-05 | Lagain Georges | Installation de fabrication et d'empilage de sacs, sachets, etc. en matiere thermoplastique |
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 |
FR2625946A1 (fr) * | 1988-01-15 | 1989-07-21 | Lagain Georges | Installation de fabrication et d'empilage de sacs, sachets, etc. en matiere thermoplastique |
DE3936515A1 (de) * | 1989-11-02 | 1991-05-08 | Windmoeller & Hoelscher | Vorrichtung zum querschneiden und querschweissen von bahnen |
DE4009655A1 (de) * | 1990-03-26 | 1991-10-02 | Windmoeller & Hoelscher | Verfahren und vorrichtung zur bildung von durch klammern zusammengehaltenen beutelstapeln |
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 |
EP0706863B1 (fr) * | 1992-03-24 | 2000-11-29 | Ulrich Steinemann AG Maschinenfabrik | Procédé et dispositif pour la séparation de produits stratifiés |
JP3371173B2 (ja) * | 1994-10-07 | 2003-01-27 | 四国化工機株式会社 | テープ接続装置 |
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 |
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 |
Family Cites Families (15)
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 |
US3384528A (en) * | 1964-01-14 | 1968-05-21 | Lehmacher Michael | Apparatus for severing and welding of thermoplastic tubing film |
DE1479421B1 (de) * | 1964-06-03 | 1973-05-24 | Hans Lehmacher | Vorrichtung zum Schweissen und Trennen von thermoplastischen Kunststoff-Schlaeuchen oder zusammengelegten Kunststoff-Folien |
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 |
DE2833232C2 (de) * | 1978-07-28 | 1983-09-08 | Windmöller & Hölscher, 4540 Lengerich | Vorrichtung zum Herstellen von Hemdchenbeuteln aus einer mit Seitenfalten versehenen Kunststoffschlauchfolienbahn |
DE2833236C2 (de) * | 1978-07-28 | 1982-11-25 | Windmöller & Hölscher, 4540 Lengerich | Vorrichtung zum Herstellen und Stapeln von Kunststoffbeuteln |
DE2940399C2 (de) * | 1979-10-05 | 1985-10-03 | Hans 5216 Niederkassel Lehmacher | Vorrichtung zum Stapeln von Kunststoffbeuteln |
-
1982
- 1982-02-10 DE DE19823204492 patent/DE3204492A1/de active Granted
-
1983
- 1983-01-13 BR BR8300138A patent/BR8300138A/pt not_active IP Right Cessation
- 1983-01-14 CA CA000419512A patent/CA1194401A/fr not_active Expired
- 1983-01-24 EP EP83100595A patent/EP0084880B1/fr not_active Expired
- 1983-01-24 ES ES519215A patent/ES519215A0/es active Granted
- 1983-01-24 US US06/460,625 patent/US4490207A/en not_active Expired - Fee Related
- 1983-01-25 DK DK029083A patent/DK159676C/da active
Also Published As
Publication number | Publication date |
---|---|
BR8300138A (pt) | 1983-10-04 |
CA1194401A (fr) | 1985-10-01 |
DK159676C (da) | 1991-04-29 |
DK29083D0 (da) | 1983-01-25 |
US4490207A (en) | 1984-12-25 |
ES8402526A1 (es) | 1984-02-16 |
EP0084880A2 (fr) | 1983-08-03 |
ES519215A0 (es) | 1984-02-16 |
DE3204492C2 (fr) | 1993-03-18 |
DE3204492A1 (de) | 1983-08-18 |
DK29083A (da) | 1983-07-26 |
EP0084880A3 (en) | 1985-01-30 |
DK159676B (da) | 1990-11-19 |
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Owner name: BUGNION S.P.A. |
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