EP0266575B1 - Verfahren und Vorrichtung zum Durchtrennen und anschliessendem Stapeln von flachen Gegenständen, vorzugsweise Doppelbeuteln, aus Kunststoff - Google Patents

Verfahren und Vorrichtung zum Durchtrennen und anschliessendem Stapeln von flachen Gegenständen, vorzugsweise Doppelbeuteln, aus Kunststoff Download PDF

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Publication number
EP0266575B1
EP0266575B1 EP87114651A EP87114651A EP0266575B1 EP 0266575 B1 EP0266575 B1 EP 0266575B1 EP 87114651 A EP87114651 A EP 87114651A EP 87114651 A EP87114651 A EP 87114651A EP 0266575 B1 EP0266575 B1 EP 0266575B1
Authority
EP
European Patent Office
Prior art keywords
wicket
web
arms
stacking
similar
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
EP87114651A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0266575A1 (de
Inventor
Klaus Ullmann
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 EP0266575A1 publication Critical patent/EP0266575A1/de
Application granted granted Critical
Publication of EP0266575B1 publication Critical patent/EP0266575B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/38—Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
    • B65H29/40—Members rotated about an axis perpendicular to direction of article movement, e.g. star-wheels formed by S-shaped members
    • 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
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/98—Delivering in stacks or bundles
    • B31B70/984—Stacking bags on wicket pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4212—Forming a pile of articles substantially horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/65—Other elements in face contact with handled material rotating around an axis parallel to face of material and perpendicular to transport direction, e.g. star wheel
    • B65H2404/655—Means for holding material on element
    • B65H2404/6551—Suction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/12—Surface aspects
    • B65H2701/121—Perforations
    • B65H2701/1212—Perforations where perforations serve for handling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/191—Bags, sachets and pouches or the like

Definitions

  • the invention relates to a method for severing and subsequent stacking of web sections provided with positioning holes in their central region, preferably double bags welded off from a plastic tubular or semi-tubular web with opening edges lying in the region of their center line, according to the preamble of patent claim 1, and a device for carrying them out this procedure.
  • the double bags welded from a film tube by transverse welding separating seams are placed on stacking plates carried by endless chains, which have a series of stacking pins on both sides of their longitudinal center line for receiving the bags.
  • a heated knife can be raised and lowered, which cuts the stack located in the separating station between the rows of stacking pins, the stacking plate forming the abutment for the separating knife. Since the stacking plates also form the abutments for the heated knives, these have to be made relatively large and heavy.
  • the known device is therefore relatively expensive because the endless chains must be provided with stacking plates at a distance from the stacks transported by them, which meet the requirements as abutment plates for the cutting knife.
  • the positioning holes are located in a central strip which is laterally delimited by perforation lines and through which the later cut separating the stacks is passed in the center.
  • the object of the invention is to propose a method of the type specified at the outset, according to which stacks which are separate from one another can be produced in a simpler manner and with simpler means from the centrally separated web sections or double bags.
  • this object is achieved in a method of the generic type by the characterizing features of patent claim 1.
  • the separation of the individual web sections or double bags in the area of their longitudinal center line is already carried out during the transport by the transfer device or the winder to the stacking station, so that web sections already separated in the center or individual bags formed by separating the double bags are stacked predetermined number of pieces are stacked.
  • the method according to the invention can be carried out much more simply and with little effort, because there is no need for a separate separating device which separates the stacks formed, with a correspondingly stable stack conveyor which forms the abutment for the separating knife which separates the needled stacks.
  • a pull rod or the like is used. provided that cuts through the individual web sections or double bags and means only a small investment.
  • a method for the production of bags each connected by perforation lines is known, which are produced from a double-layer material web, in which the bags are connected by perforation lines, and are torn off in pairs after their production from this material web .
  • the pair of bags to be torn off are provided with grippers which are attached laterally and are attached to the ends of spoke-shaped arms which are arranged in pairs on rotatably mounted hubs provided with a drive.
  • torn-off bags are torn off by grippers provided on rotating arms, but the tied bags are not separated again during their transport from the material web onto the stack.
  • a device for carrying out the method according to the invention with a so-called wicketer is the subject of patent claim 2.
  • the tear wire or the like attached to at least one cross-member fixed to the frame provided outside the enveloping cylinder of the winding arms.
  • this can be slidably fastened with clamping pieces on cross members parallel to the axis of rotation.
  • the tear wire or the like is preferably located. in the conveying direction behind the winding axis of rotation and above the feed plane of the web sections or the web and is inclined at an angle of 30 degrees to 60 degrees to the feed plane against the conveying direction, so that the tear-off perforation line to be severed progressively or the like over the tear wire. is led and severed.
  • the tear wire can be curved in an arc.
  • a shaft 2 is provided with a drive (not shown) on which a hub 3 is fastened, which carries star-shaped so-called winding arms 4.
  • These winding arms 4 are provided in a known manner with gripping devices or suction cups, to which suction air is fed through suction lines and a rotary leadthrough for sucking in web sections.
  • the winding arms consist of outer arms 4 and inner, a gap between delimiting arms 4 '.
  • Each row of the winding arms 4, 4 'fastened in a star shape on the hub is located in a plane intersecting the axis of rotation of the winding and containing the axis of rotation.
  • stacking conveyors 5, 6 are arranged between the winder arms 4, 4 '.
  • These stacking conveyors consist of endless traction means 9 running over deflection rollers 7 and guide supports 8, on which pairs of stacking pins 10 are fastened at a distance from the stack to be formed.
  • On the stacking pins are provided with end flanges sleeves 11, which hold the stacks together after they have been removed from the pins 10 and are closed by edge pieces of pipe which are pressed into the sleeves.
  • the stacking belts 5, 6 are arranged between the winding arms 4, 4 'immediately adjacent to the inner winding arms 4'.
  • traverses 12, 12 ′ consisting of tubes are fastened and run parallel to the winding shaft 2.
  • Clamping pieces 13, 13 ' in which the ends of a pull rod 15 are fastened, are fastened on these cross members 12, 12'.
  • the rice rod 15 is located in the annular gap between the inner winding arms 4 '.
  • a cross-welding separating device 14 is arranged in the machine frame, which welds off web sections or double bags from the tubular or semi-tubular web coming from a bag or processing machine, which are then taken over and stacked by the winding arms.
  • a short conveyor 17, 18 formed from endless belts is provided, which is, as it were, a storage table for the front one which is advanced between the open cross-welding separation station 14 Forms the end of the web so that the welded-off section can be taken over by the winding arms and, after turning, can be needled via copy onto the needles 10 or sleeves 11.
  • the web 16 is provided with a central longitudinal tear-off perforation line. The welded-off web sections penetrate the tear wire 15 when they are taken along by the winding arms and hit overhead on the stacking pins 10, so that the sections are severed along their central tear-off perforation line.
  • the web 16 is provided on both sides of the central tear-off perforation line with stack holes, the distance between which corresponds to the distance between the stacking pins 11.
  • the centrally separated web sections are therefore needled onto the stacking pins 10 or sleeves 11 in their inner edge regions, which can form the opening sides of bags, for example.
  • the stacking belts 5, 6 are located close to the inner winding arms 4 ', the stacked bags hang out laterally over the stacking conveyor 5, 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
EP87114651A 1986-11-04 1987-10-07 Verfahren und Vorrichtung zum Durchtrennen und anschliessendem Stapeln von flachen Gegenständen, vorzugsweise Doppelbeuteln, aus Kunststoff Expired - Lifetime EP0266575B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863637491 DE3637491A1 (de) 1986-11-04 1986-11-04 Verfahren und vorrichtung zum stapeln von flachen gegenstaenden vorzugsweise doppelbeuteln, aus kunststoffolie
DE3637491 1986-11-04

Publications (2)

Publication Number Publication Date
EP0266575A1 EP0266575A1 (de) 1988-05-11
EP0266575B1 true EP0266575B1 (de) 1990-02-28

Family

ID=6313107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114651A Expired - Lifetime EP0266575B1 (de) 1986-11-04 1987-10-07 Verfahren und Vorrichtung zum Durchtrennen und anschliessendem Stapeln von flachen Gegenständen, vorzugsweise Doppelbeuteln, aus Kunststoff

Country Status (6)

Country Link
US (1) US4878888A (enrdf_load_stackoverflow)
EP (1) EP0266575B1 (enrdf_load_stackoverflow)
DE (1) DE3637491A1 (enrdf_load_stackoverflow)
DK (1) DK571187A (enrdf_load_stackoverflow)
FI (1) FI874858A7 (enrdf_load_stackoverflow)
NO (1) NO874544L (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834115C1 (enrdf_load_stackoverflow) * 1988-10-07 1990-05-03 Karl Heinz 7000 Stuttgart De Stiegler
DE3838563A1 (de) * 1988-11-14 1990-05-17 Windmoeller & Hoelscher Vorrichtung zum stapeln von flachen gegenstaenden
DE19932365C2 (de) * 1999-07-10 2003-10-16 Lemo Maschb Gmbh Vorrichtung zum paketweisen Sammeln von Kunststoffbeuteln, insbesondere Automatenbeuteln
US6612563B1 (en) 2000-03-31 2003-09-02 Graphic Management Associates, Inc. Stacking and counting device for planar products
US6786003B2 (en) * 2002-07-03 2004-09-07 Scott R. Gilbert Multi-layer sleeve

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805683A (en) * 1972-08-28 1974-04-23 C Hook Timed vacuum delivery belts
DE2244495A1 (de) * 1972-09-11 1974-03-21 Stiegler Maschf Felix Vorrichtung und verfahren zum verblocken eines stapels von kunststoffbeuteln und ein nach dem verfahren verblockter beutelstapel
DE3049142A1 (de) * 1979-08-01 1982-07-15 Wilhelm 7180 Crailsheim Scherz Abreissstation fuer eine vorrichtung zum herstellen von tuetenbloecken
US4451249A (en) * 1980-09-26 1984-05-29 Debin Rene F Manufacture of thermoplastic bags
US4529114A (en) * 1983-09-09 1985-07-16 Moore Business Forms, Inc. Form burster
DE3505858A1 (de) * 1984-11-23 1986-06-05 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zum stapeln von flachen gegenstaenden, vorzugsweise beuteln aus kunststoffolie
US4699607A (en) * 1985-11-06 1987-10-13 Fmc Corporation Method and apparatus for producing bags

Also Published As

Publication number Publication date
DE3637491C2 (enrdf_load_stackoverflow) 1988-10-27
US4878888A (en) 1989-11-07
DK571187A (da) 1988-05-05
EP0266575A1 (de) 1988-05-11
NO874544L (no) 1988-05-05
NO874544D0 (no) 1987-11-02
FI874858A7 (fi) 1988-05-05
FI874858A0 (fi) 1987-11-04
DK571187D0 (da) 1987-10-30
DE3637491A1 (de) 1988-05-19

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