EP0216989B1 - Dispositif pour tirer une pile de sacs en matière thermoplastique en dessous d'une pile qui est en train de se former - Google Patents

Dispositif pour tirer une pile de sacs en matière thermoplastique en dessous d'une pile qui est en train de se former Download PDF

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Publication number
EP0216989B1
EP0216989B1 EP86105832A EP86105832A EP0216989B1 EP 0216989 B1 EP0216989 B1 EP 0216989B1 EP 86105832 A EP86105832 A EP 86105832A EP 86105832 A EP86105832 A EP 86105832A EP 0216989 B1 EP0216989 B1 EP 0216989B1
Authority
EP
European Patent Office
Prior art keywords
saddle
conveyor belt
shaft
stack
drive
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
EP86105832A
Other languages
German (de)
English (en)
Other versions
EP0216989A2 (fr
EP0216989A3 (en
Inventor
Helmut Simon
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 EP0216989A2 publication Critical patent/EP0216989A2/fr
Publication of EP0216989A3 publication Critical patent/EP0216989A3/de
Application granted granted Critical
Publication of EP0216989B1 publication Critical patent/EP0216989B1/fr
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
    • B65H31/00—Pile receivers
    • B65H31/30—Arrangements for removing completed piles
    • 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
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering

Definitions

  • the invention relates to a device for pulling off a stack of bags made of plastic films under a stack that is formed, with a conveyor belt that intermittently transports the formed stacks, with a slide that runs on guides that are parallel to the conveying direction of the conveyor belt and in which pressure pieces can be raised and lowered, which are supported are controllable in such a way that they can be removed from the stack in order to pull off the stack formed during its standstill, then can be moved in the transport direction with the intermittent movement of the conveyor belt and can be lifted off the stack at the end of the removal, with a drive which moves the carriage in the opposite direction to the transport direction and with means for clamping the carriage to the conveyor belt.
  • the object of the invention is therefore to simplify the structure of the known device.
  • this object is achieved in that the drive moving the carriage also moves it in the conveying direction and in that the intermittent drive of the conveyor belt takes place by clamping it on the carriage.
  • the drive for the conveyor belt is omitted because it is taken intermittently in accordance with the step-by-step removal of the stacks formed from the carriage which is clamped onto it during the preferred movement.
  • the pressure pieces are arranged at the free ends of resilient levers, the other ends of which are fastened to a shaft provided with a rotary drive, and that the opening and closing movements of clamping pieces are derived from the shaft, via which the slide is clamped to the edges of the conveyor belt during its withdrawal movement.
  • the carriage can be driven via pinions provided with a drive which mesh with toothed racks which are connected to the guides.
  • the clamping pieces can be driven by spring-loaded plungers which are actuated by central cams placed on the shaft.
  • pinions are carried by a shaft 11 which is held on the one hand in the geared motor 12 and on the other hand by two supports 13 and 14.
  • the motor 12 and the supports 13 and 14 are mounted on a crossbar 15 and connect two frame plates 16 and 17 of a sled-type towing vehicle 34 to one another.
  • a shaft 20 is rotatably mounted in the frame plates 16 and 17.
  • a lever 21 is provided on the shaft 20, with the freely projecting end of which the piston rod 22 of a piston-cylinder unit 23 is connected.
  • the piston-cylinder unit 23 itself is held by the frame plate 16.
  • spring-loaded hold-down devices 24 which are arranged at a distance from one another are fastened on the shaft 20 and have rubber buffers 25 at their free end.
  • an eccentric 26 is also clamped to the shaft 20 for the hold-down devices 24 and is used to actuate a resilient plunger 27.
  • This stamp 27 is axially displaceable against spring force in a holder 28 and has a lower pressure piece 29.
  • the holder 28 itself is firmly connected to the frame plate 17.
  • a support beam 30 is provided, which is screwed to the frame plates 16 and 17.
  • the support bar 30 has a recess into which a rubber cushion 31 is inserted.
  • This pivoting also causes the rotation of the eccentric 26 by rotating the shaft 20 in such a way that the resilient plunger 27 is pressed upwards by the spring and thus the pressure piece 29 is raised, as a result of which the non-positive connection between the pressure piece 29 and the upper run of the conveyor belt 6 and rubber cushion 31 is released.
  • the geared motor 12 is switched on, so that the entire towing vehicle 34 is moved to the left against the direction of the arrow A (FIG. 1). Then the piston-cylinder unit is retracted and the resilient hold-down devices 24 lie on the front end of the bag stack 33 in the transport direction and press it from above against the rear end of the bag stack 32. At the same time, the upper run of the conveyor belt 6 is pressed between the pressure piece by pressing the plunger 27 down 29 and the rubber cushion 31 of the support beam 30 clamped. By actuating the motor 12, the stack of bags 33 can then be transported as far in the direction of the arrow A as is desired.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Discharge By Other Means (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Making Paper Articles (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Claims (6)

1. Dispositif pour tirer une pile de sacs en matière thermoplastique en dessous d'une pile en train de se former, avec une bande transporteuse (6) évacuant de façon, intermittente les piles formées, avec un chariot (34) se déplaçant sur des guidages parallèles au sens de transport de la bande transporteuse dans lequel sont montés pour être soulevés et abaissés des organes presseurs (25) qui sont commandés de sorte que, pour tirer la pile formée pendant son arrêt, ils se posent sur le bord avant de la pile formée, puis ils se déplacent dans le sens du transport conjointement avec le mouvement intermittent de la bande transporteuse, et, après qu'a pris fin le mouvement de tirage, ils se soulèvent de la pile, avec une commande d'entraînement (7-12) déplaçant le chariot dans le sens opposé au sens de transport, et avec des moyens (26-29) pour serrer le chariot contre la bande transporteuse, caractérisé en ce que la commande d'entraînement (8-12) du chariot (34) déplace celui-ci également dans le sens du transport et que l'avance intermittente de la bande transporteuse (6) s'effectue grâce au fait que cette même bande est serrée contre le chariot (34).
2. Dispositif selon la revendication 2, caractérisé en ce que les organes presseurs (25) sont disposés aux extrémités libres de leviers (24) élastiques dont les autres extrémités sont fixées sur un arbre (20) pourvu d'une commande rotative (21-23) et que, de ce même arbre (20) sont dérivés les mouvements d'ouverture et de fermeture de pièces de serrage (29) au moyen desquelles le chariot (34) est serré contre les bords de la bande transporteuse (6) pendant qu'il effectue son mouvement de tirage.
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les guidages sont pourvus de crémaillères (7-8) avec lesquelles engrènent des pignons (9-10) montés dans le chariot (34) et pourvus d'une commande d'entraînement (11-12).
4. Dispositif selon une quelconque des revendications 1 à 3, caractérisé en ce que la commande rotative de l'arbre (20) est constituée par un levier (21) lié à l'arbre (20) à l'une des extrémités duquel est articulé un vérin à fluide de pression (23) et dont l'autre extrémité est montée dans le chariot (34).
5. Dispositif selon une quelconque des revendications 1 à 4, caractérisé en ce que le chariot (34) est pourvu sous le brin supérieur de la bande convoyeuse de butées d'appui (30) pour les membres de pression (25) et pièces de serrage (29).
6. Dispositif selon une quelconque des revendications 1 à 5, caractérisé en ce que les pièces de serrage (29) sont constituées par des pilons (27) qui sont sollicités par des ressorts de pression en direction de leur position d'ouverture et que, pour exercer leur action, les pilons (24) s'appuient sur des disques (26) excentriques calés sur l'arbre (20).
EP86105832A 1985-07-09 1986-04-28 Dispositif pour tirer une pile de sacs en matière thermoplastique en dessous d'une pile qui est en train de se former Expired - Lifetime EP0216989B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853524486 DE3524486A1 (de) 1985-07-09 1985-07-09 Vorrichtung zum abziehen eines stapels von beuteln aus kunststoffolie unter einem sich bildenden stapel
DE3524486 1985-07-09

Publications (3)

Publication Number Publication Date
EP0216989A2 EP0216989A2 (fr) 1987-04-08
EP0216989A3 EP0216989A3 (en) 1989-01-04
EP0216989B1 true EP0216989B1 (fr) 1990-09-19

Family

ID=6275316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105832A Expired - Lifetime EP0216989B1 (fr) 1985-07-09 1986-04-28 Dispositif pour tirer une pile de sacs en matière thermoplastique en dessous d'une pile qui est en train de se former

Country Status (6)

Country Link
US (1) US4723654A (fr)
EP (1) EP0216989B1 (fr)
JP (1) JPS6232039A (fr)
CA (1) CA1278585C (fr)
DE (1) DE3524486A1 (fr)
ES (1) ES8707142A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03217759A (ja) * 1990-01-24 1991-09-25 Matsushita Electric Ind Co Ltd 石油燃焼器具
DE69314455T2 (de) * 1993-01-08 1998-04-23 Agfa Gevaert Nv Klemmvorrichtung

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US31945A (en) * 1861-04-09 Bobbin fob
US1991835A (en) * 1930-03-22 1935-02-19 Bayuk Cigars Inc Cigar handling mechanism
US2684626A (en) * 1948-12-28 1954-07-27 Journal Company Bundle tying machine feeder and the control mechanism
US3283918A (en) * 1963-12-02 1966-11-08 George C Devol Coordinated conveyor and programmed apparatus
DE1206295B (de) * 1964-01-21 1965-12-02 Stiegler Maschf Felix Vorrichtung zum schrittweisen Foerdern von Stapeln flacher Gegenstaende
US3958682A (en) * 1973-11-05 1976-05-25 Martin Paul S Coordination of robot and conveyor
FR2310210A1 (fr) * 1975-05-06 1976-12-03 Lagain Georges Dispositif de reception et de transport d'objets plats notamment a la sortie d'une machine pour la fabrication de sacs
DE2708853A1 (de) * 1977-03-01 1978-09-07 Windmoeller & Hoelscher Vorrichtung zum durchtrennen und gleichzeitigem verblocken eines aus folienfoermigen abschnitten gebildeten stapels
DE2858022C2 (de) * 1978-07-28 1983-09-08 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zum Abziehen eines Stapels von Beuteln aus Kunststoffolien unter einem sich bildenden Stapel
IT1133674B (it) * 1980-10-02 1986-07-09 Ind Bagnolo S I B Srl Soc Trasportatore a nastro in tessuto metallico ad avanzamento intermittente,particolarmente per il trasporto di materiali in forni industriali
US4396379A (en) * 1980-10-16 1983-08-02 Fmc Corporation Thermoplastic bag stacking apparatus
DE3046107C2 (de) * 1980-12-06 1982-11-18 Bielomatik Leuze Gmbh + Co, 7442 Neuffen Vorrichtung zum Ablegen von Bogen zu einem Stapel
JPS5796747A (en) * 1980-12-08 1982-06-16 Hitachi Ltd Device for clamping and centering long material
FR2557549B1 (fr) * 1983-12-29 1986-05-30 Lagain Georges Dispositif pour aplanir et extraire des piles de sacs a la sortie d'une machine pour la fabrication de sacs en matiere plastique

Also Published As

Publication number Publication date
ES8707142A1 (es) 1987-07-16
EP0216989A2 (fr) 1987-04-08
JPS6232039A (ja) 1987-02-12
DE3524486C2 (fr) 1987-07-16
US4723654A (en) 1988-02-09
DE3524486A1 (de) 1987-01-22
EP0216989A3 (en) 1989-01-04
ES556302A0 (es) 1987-07-16
CA1278585C (fr) 1991-01-02

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