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WO2003011581A2 - Dispositif de transfert de sachets plastiques, notamment vers un collecteur dans une machine de fabrication de sachets - Google Patents

Dispositif de transfert de sachets plastiques, notamment vers un collecteur dans une machine de fabrication de sachets Download PDF

Info

Publication number
WO2003011581A2
WO2003011581A2 PCT/EP2002/007088 EP0207088W WO03011581A2 WO 2003011581 A2 WO2003011581 A2 WO 2003011581A2 EP 0207088 W EP0207088 W EP 0207088W WO 03011581 A2 WO03011581 A2 WO 03011581A2
Authority
WO
WIPO (PCT)
Prior art keywords
suction
hollow shaft
impellers
openings
suction surface
Prior art date
Application number
PCT/EP2002/007088
Other languages
German (de)
English (en)
Other versions
WO2003011581A3 (fr
Inventor
Hans Bert Wuits
Armin Meyer
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
Priority to EP02754764A priority Critical patent/EP1412172A2/fr
Publication of WO2003011581A2 publication Critical patent/WO2003011581A2/fr
Publication of WO2003011581A3 publication Critical patent/WO2003011581A3/fr
Priority to NO20040363A priority patent/NO20040363L/no

Links

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
    • 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
    • B65H2406/00—Means using fluid
    • B65H2406/30—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
    • B65H2701/19—Specific article or web
    • B65H2701/191—Bags, sachets and pouches or the like

Definitions

  • the invention relates to a device for transferring plastic bags, in particular to a collecting device of a bag making machine, with an impeller consisting of a central hollow shaft, which is connected to a rotary drive and connected to a vacuum source, as well as several wing arms attached radially protruding from the hollow shaft Inside are designed as a suction channel and have a suction surface with a plurality of suction openings on one long side.
  • the invention is therefore based on the object of improving the suction power on the wing arms in a transfer device of the generic type without the power of the suction fan having to be increased.
  • the suction surface of the wing arms has suction openings with a diameter between 3 mm and 12 mm, preferably between 6 mm and 9 mm and that the open portion formed by the suction openings in the entire suction surface more than 3%, preferably more than 5%.
  • suction channel has a reduced cross section in the area below the suction surface.
  • the suction of the bags on the suction surface is improved if the suction openings are designed as nozzles with a cross section that widens outwards.
  • the suction surface is formed by the outer surface of a strip-shaped through-hole insert which is placed in the wing arm on the suction channel in a region with a reduced cross-section such that its outer surface is in contact with the adjacent outer surface of the Wing arm is aligned.
  • Figure 1 shows a part of the bag making machine with the transfer device and the beginning of the collecting device in side view.
  • Figure 2 shows a plan view of the transfer device.
  • Figure 3 shows a side view of a wing arm.
  • Figure 4 shows a top view of the wing arm with a portion of the bag held.
  • the device shown in the figures is used to transfer plastic bags 1, which are produced from a double-layer plastic sheet 2 by cross-cut welding by means of a cut-off welding device 3, to a collecting device 4. It is part of a bag machine in which the bags 1 produced are collected in stacks and so on can be combined into bag packages. The bags of a package are then preferably blocked.
  • the collecting device 4 is preferably designed as a so-called pen stacker. It has a cyclically driven longitudinal conveyor to which stacking pins 5 are fastened.
  • the bags 1 have collection openings on one side, with which they are drawn over the pins 5 and are thus placed one above the other and stacked.
  • the transfer device contains an impeller 6, which consists of a central hollow shaft 7 and several, attached to the hollow shaft 7 wing arms 8.
  • the hollow shaft 7 is connected to a rotary drive 9 and connected to a suction fan as a vacuum source, so that a vacuum can be generated in its interior.
  • a plurality of wing arms 8 are fastened to the hollow shaft 7 in a radially projecting manner, the interior of which is designed as a suction channel 10.
  • a wing arm is shown enlarged in FIGS. 3 and 4:
  • Each wing arm 8 has the shape of a hollow strip, at the fastening end of which a connecting piece 15 is fastened and which is closed at its other, free end. With the open connector 15, the wing arm 8 is attached to the central hollow shaft 7 and connected to the vacuum source.
  • the hollow strip serving as suction channel 10 has a suction surface 16 with a plurality of suction openings 11.
  • the suction openings 11 in the suction surface 16 have a diameter between 3 mm and 12 mm, preferably between 6 mm and 9 mm.
  • the open portion of the total suction surface 16 formed by the suction openings 11 is more than 3%, preferably more than 5%. In the present exemplary embodiment, the suction surface 16 is approximately 3,500 mm.
  • the four suction openings in the suction surface 16 each have a diameter of 8 mm, so that the open portion of the suction surface 16 is approximately 5.7%.
  • the suction surface 16 is preferably formed by the outer surface of a strip-shaped insert 12, which is shown in a removed position in FIG. 3.
  • the insert 12 has through holes 13 as suction openings 11, which are connected to the suction channel 10.
  • the insert 12 is placed in the wing arm 8 on the suction channel 10 and screwed down by means of screws 14.
  • the hollow strip serving as suction channel 10 has a reduced height in the area of use by the height of the insert 12, so that the outer surface of the insert used which forms the suction surface 16 is aligned with the outer surface of the wing arm 8. Due to the reduced height of the hollow strip, the suction channel 15 has a reduced cross section in the area below the suction surface 16. This leads to an increase in the flow rate and thus to an improved suction effect.
  • the through bores 13 are preferably designed as nozzles with an outwardly widening cross section, as shown in FIG. 3.
  • the nozzle-shaped design of the bores 13 increases the suction force with which a bag 1 is pulled in the direction of the wing arm 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

L'invention vise à mettre en oeuvre le transfert de sachets plastiques (1) vers un collecteur (4) d'une machine de fabrication de sachets. Les dispositifs connus destinés à cet effet comportent une roue à ailettes (6) constituée d'un arbre creux central (7) relié à un entraînement rotatif (9) et à une source de dépression. L'arbre creux (7) comporte plusieurs ailettes (8) faisant saille radialement, dont l'intérieur est conçu en tant que canal d'aspiration (10), et présentant sur un côté longitudinal une surface d'aspiration (16) comportant plusieurs ouvertures d'aspiration (11). Pour améliorer la force d'aspiration sur les ailettes (8), la surface d'aspiration (16) des ailettes (8) contient des ouvertures d'aspiration (11) de diamètre valant entre 3 mm et 12 mm, de préférence entre 6 mm et 9 mm. La partie ouverte constituée par les ouvertures d'aspiration (11) sur la surface d'aspiration totale (16) représente plus de 3 %, de préférence plus de 5 %. Dans un autre mode de réalisation, les ailettes (8) du canal d'aspiration (10) présentent dans la zone située sous la surface d'aspiration (16) une section transversale réduite.
PCT/EP2002/007088 2001-07-28 2002-06-27 Dispositif de transfert de sachets plastiques, notamment vers un collecteur dans une machine de fabrication de sachets WO2003011581A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02754764A EP1412172A2 (fr) 2001-07-28 2002-06-27 Dispositif de transfert de sachets plastiques, notamment vers un collecteur dans une machine de fabrication de sachets
NO20040363A NO20040363L (no) 2001-07-28 2004-01-27 Anordning for overforing av plastposer, saerlig til en oppsamler i en posefremstillingsmaskin.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10136867A DE10136867A1 (de) 2001-07-28 2001-07-28 Vorrichtung zum Übergeben von Kunststoffbeuteln, insbesondere an eine Sammeleinrichtung in einer Beutelherstellungsmaschine
DE10136867.4 2001-07-28

Publications (2)

Publication Number Publication Date
WO2003011581A2 true WO2003011581A2 (fr) 2003-02-13
WO2003011581A3 WO2003011581A3 (fr) 2003-09-25

Family

ID=7693441

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/007088 WO2003011581A2 (fr) 2001-07-28 2002-06-27 Dispositif de transfert de sachets plastiques, notamment vers un collecteur dans une machine de fabrication de sachets

Country Status (4)

Country Link
EP (1) EP1412172A2 (fr)
DE (1) DE10136867A1 (fr)
NO (1) NO20040363L (fr)
WO (1) WO2003011581A2 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3216504C1 (de) * 1982-05-03 1983-10-13 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zum Stapeln flacher Gegenstände
US4573955A (en) * 1983-10-07 1986-03-04 Fmc Corporation Apparatus for stacking thermoplastic sheets
US5143367A (en) * 1991-01-07 1992-09-01 Pottorff Earl T Rotary vacuum wicketter with removable split wearplates
DE4420975A1 (de) * 1994-06-16 1995-12-21 Lemo Maschb Gmbh Vorrichtung zum Stapeln von in einem Randbereich mit Stapellöchern oder dergleichen versehenen Kunststoffbeuteln oder dergleichen
US5564693A (en) * 1995-02-01 1996-10-15 Ward Holding Company, Inc. Paperboard processing machine with vacuum transfer system

Also Published As

Publication number Publication date
WO2003011581A3 (fr) 2003-09-25
NO20040363L (no) 2004-03-18
EP1412172A2 (fr) 2004-04-28
DE10136867A1 (de) 2003-02-20

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