WO2010015505A1 - Coulisseau mobile pour ouvrir les extrémités de pièces tubulaires - Google Patents

Coulisseau mobile pour ouvrir les extrémités de pièces tubulaires Download PDF

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Publication number
WO2010015505A1
WO2010015505A1 PCT/EP2009/059330 EP2009059330W WO2010015505A1 WO 2010015505 A1 WO2010015505 A1 WO 2010015505A1 EP 2009059330 W EP2009059330 W EP 2009059330W WO 2010015505 A1 WO2010015505 A1 WO 2010015505A1
Authority
WO
WIPO (PCT)
Prior art keywords
opening
hose
moving
pieces
hose pieces
Prior art date
Application number
PCT/EP2009/059330
Other languages
German (de)
English (en)
Inventor
Klaus Ullmann
Original Assignee
Windmöller & Hölscher 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 Windmöller & Hölscher Kg filed Critical Windmöller & Hölscher Kg
Priority to EP09780854.7A priority Critical patent/EP2337678B1/fr
Publication of WO2010015505A1 publication Critical patent/WO2010015505A1/fr

Links

Classifications

    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/003—Opening or distending 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0014—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing transversally to the direction of movement
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/102—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from essentially rectangular sheets
    • 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
    • B31B2160/20—Shape of flexible containers with 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/76—Opening and distending flattened articles
    • B31B50/78—Mechanically

Definitions

  • the invention relates to an apparatus and a method for opening ends of hose pieces to open bottom squares.
  • sack making devices that can handle pieces of tubing made of any materials.
  • pieces of plastic on the devices described below in particular those comprising woven fabric of stretched plastic tape.
  • a previously separated piece of tubing is guided transversely to its longitudinal axis, that is perpendicular to the extension axis of the piece of tubing, by means of a suitable means of transport (for example double belt conveyor) to a pre-breaking station.
  • a suitable means of transport for example double belt conveyor
  • the corner folds of the opened bottom of the sack, which is formed in the subsequent bottom opening station, are later located on the folded edge created in this case.
  • the upper wall of the Hose piece which may consist of several layers of material, folded back along the folded edge on itself.
  • a valve is placed on the open bottom on a bottom opening in the valve dispensing station.
  • the bag can later be filled via a suitable filling member.
  • Zulegestation the bottom opening of the bag is folded, so that subsequently in the
  • a device for producing sacks according to the patent application DE 195 02 251 A1 shows a bottom opening device in which a designed as a slider means for opening the bottom squares is provided. This slide is moved to a raised position and at the same time extended into the tube piece plane in order to fold over the upper wall of a piece of tubing along the fold line on itself. Subsequently, the slider is lowered in the extended position to press the wall and then retracted again.
  • the object of the present invention is therefore to propose an apparatus for opening ends of hose pieces to open bottom squares, which reduces the disadvantages of the prior art. According to the invention this object is solved by the features of the characterizing parts of claims 1 and 13. Accordingly, it is provided that the means for opening the bottom squares at least temporarily simultaneously in the transport direction and extension direction of the tube pieces is movable.
  • the hose pieces are cyclically fed to the individual processing stations.
  • This standstill-free operation is made possible in that the means for opening the bottom squares during the bottom opening process is also moved in the conveying direction of the hose pieces. With the invention, it is therefore no longer necessary to stop the hose pieces to open the hose piece ends. Therefore, a larger number of pieces of tubing can be processed per period of time.
  • a first means for moving is provided, with which the means for opening in the transport direction of the hose pieces or in the transport direction of the hose pieces and in the extension direction of the hose pieces is movable.
  • the means for opening by means of the first means for movement is at least temporarily moved at the same speed and the same direction as the piece of hose whose ends are to be opened.
  • the means for opening must now be moved in the extension direction of the hose pieces, which will be described in more detail below.
  • the second alternative is mainly intended to a rotating component which is rotatable about a rotation axis.
  • This axis of rotation advantageously has a component which is directed orthogonal to the plane which is spanned by the tube piece.
  • the rotation axis is aligned completely orthogonal to this plane.
  • the rotating component can now carry the means for opening. During the rotation, it must be ensured that the Movement in the transport direction of the hose pieces is adapted to the movement of the hose pieces.
  • the first means for moving can be powered by a drive with the necessary drive power.
  • This drive can be a single drive, even on the means for moving at both ends of the
  • Hose piece can act. It can be provided for this purpose but also two separate drives. Another possibility is that the required drive torque is removed from the central main drive of the bag making device.
  • the first means for moving can be configured in various ways.
  • a driven wheel for example a toothed wheel
  • drives an endless, revolving drive means such as a link chain.
  • a support member may be arranged, which carries the means for opening.
  • Such a support element can also be arranged linearly displaceable on a rail system and driven by a suitable drive.
  • Such a drive may be a linear motor capable of rapidly moving a component back and forth between two positions, with little wear due to the use of only a few mechanical elements such as gears.
  • a second means for moving is provided, with which the means for opening in extension direction is movable. This can be arranged on or on any kind of first means for moving.
  • the second means may cause the movement of the means for opening in the longitudinal direction of the length of hose.
  • a second means may be provided for moving, for example, to overlay the movement of the first means for moving a further movement in the longitudinal direction of the hose pieces. This makes it possible to advance the means for opening sufficiently far to safely open the end of the hose piece.
  • the second means for moving may be a separate drive, for example a motor drive.
  • a mechanical power transmission This includes, for example, a lever mechanism, which consists of several lever arms connected by means of rotary joints, which are suitably arranged relative to one another. A lever is thereby supplied by the first means for moving with a torque or with a force. The lever mechanism can thus displace the means for opening relative to the first means for moving.
  • the means for opening may, for example, be movable on guide means such as rails relative to a support element to which such a guide means can be fastened and thus perform a movement in the direction of the longitudinal axis of the hose pieces.
  • curve guides are conceivable that move the means for opening and are driven by the first means for moving.
  • a drive is generally also a reciprocating into consideration, which can move the means for opening from an initial position to an end position.
  • a reciprocating piston which is quite inexpensive, the bottom can be formed relatively quickly.
  • a motor drive can here also be a linear motor, which is used as a second means for moving. With such a motor, it is even possible to vary the speed of the opening means during the opening operation.
  • a fixing device a suction conveyor belt or a follower fixing piston is suitable.
  • the at least one means for opening the bottom squares as a flat sheet extending in the direction of extension of the piece of hose.
  • the plane of the sheet and the hose piece are therefore advantageously - at least almost - parallel.
  • a pneumatic cylinder for displacing the means for opening the bottom squares on the support in the extension direction of the hose pieces is advantageously provided.
  • FIG. 1 schematic diagram of an apparatus for the production of tissue sacks
  • FIG. 2 elevation of a floor opening device according to the invention
  • FIG. 3 view M-III of Fig. 2 before opening the bottom
  • Fig. 4 view as Fig. 3, but during the bottom opening
  • FIG. 1 schematically shows individual steps for processing a hose, for example a fabric hose, into sacks, as they take place in the sack manufacturing device 1.
  • the tube 2 is fed to the sack manufacturing device 1. This is advantageously done by unwinding the one tube 3 forming tube in a processing device 4. Subsequently, the tube 2 undergoes the so-called opening in the opening station 5.
  • the fabric tube is guided around an inner tool around which separates the two walls, so that the walls, if they were glued together in one of the manufacturing steps of the tube, separate. Only with separate walls can it be ensured that the following production steps can be carried out properly. Afterwards, the separate walls (material layers) of the hose are put back on top of each other.
  • the tube is then fed to the cross-cutting device 6, which separates the tube into individual tube pieces 13.
  • both ends of each tube piece 13 are opened and the so-called bottom squares are laid.
  • valve station 9 a valve is placed and secured on one of the two open ends.
  • the open bottoms are now closed in the bottom closing station 10, wherein two tabs are placed on each other and each other permanently, for example by welding, are connected.
  • the conclusion of the actual Sackherstellreaes forms the application of a ground cover sheet on the floors in the cover sheet station 11.
  • the cover sheets can also be welded.
  • the finished bags are then placed on the bag stack 12 and transported away from there on unspecified manner.
  • FIG. 2 shows an elevation of an embodiment of a device according to the invention for opening ends of hose pieces 13 to open bottom squares 14.
  • a slide plate 15 is provided as a means for opening the bottom squares.
  • the slide plate 15 is slidably mounted on a carriage 16, which 16 on a support 17 in the direction of the arrow z, ie in the direction of extension z of the hose pieces 13, is movable.
  • a Hubkolben- or pneumatic cylinder 21 is provided, the piston is movable in the direction of arrow 23.
  • the carrier 17 is rotatably mounted about pivot bearings 18 at one end of two lever arms 19 about the axes Di and D 2 .
  • the other ends of the two lever arms 19 are rotatably mounted about the axes D 3 and D 4 in a frame 30.
  • the pieces of hose are fed to the bottom opening device 8, generally at a uniform speed.
  • the lever arms 19 thereby rotate within the x-z plane at a non-uniform speed.
  • the nonuniform velocity-in the direction of the arrow 24 or in the xz-plane- is synchronized with a synchronization unit, for example an electric motor 22 with non-uniformity lift, not described in more detail in that the slider moves along the x-direction (transport direction of the tube pieces 13).
  • a synchronization unit for example an electric motor 22 with non-uniformity lift
  • the sliding plate 15 is moved alternately on the carrier 17 - in the direction of propagation z of the tube pieces 13 - back and forth.
  • Hose piece 13 reaches the bottom opening device 8, which is the
  • This fixing device may be a suction conveyor belt 27 or a follower
  • suction pads may additionally be provided which lift the upper wall of the hose pieces 13 before the sliding panel folds back the upper wall onto itself.
  • a pressure roller 20 may be provided which is mounted in the transport direction x of the tube pieces - in the region of the bottom opening 14. By passing the bottom opening through the gap formed by the roller 20 with the table or a counter-roller, folding edges are stabilized or fixed.
  • the sliding plate 15 of the bottom opening device 8 may be inclined at an angle ⁇ to the plane of the table.
  • the sliding plate can be made of a flexible material.
  • the flexible sliding plate can cling to the table and thus exerts a force - with a major component in the y direction - on the wall fold, so that a durable fold is already formed in this step.
  • a pressure roller 20 would not be necessary.
  • both features - one by the angle ⁇ Angled slide plate and a pressure roller 20 - includes, may be advantageous.
  • FIG. 3 shows the view III - III in FIG. 2.
  • a pressure plate 26 can be seen, which forms a horizontal gap with the transport table, not shown.
  • the pressure plate 26 not only ensures the pressure of the hose piece in the direction of the table top, but forms with its the end of the hose piece 13 facing edge is a folded edge, along which the bottom is opened. This situation is clear from FIGS. 4 and 5.
  • a suction belt 27 is arranged. This suction belt is provided with Lucas micthttsötechnisch conveyor belt, which runs over a suction box, not shown.
  • This suction box is subjected to a negative pressure, so that the resting on the transport table wall is sucked from the suction box on the Lucas micthttsötechnisch in the direction of the suction table. This ensures that the lower wall remains when folding back of the upper wall on the transport table.
  • the upper wall has already been slightly raised by suitable devices, such as vacuum cups, so that an already slightly open end 25 has been created is.
  • FIG. 4 shows a similar situation to FIG. 3, but the slide plate 15 is now fully extended in the direction z. It was the Slider plate 15 is guided above the Andrückbleches 27, so that the upper wall of the hose piece was folded back on itself to form so-called triangular pockets 28 and 29. It is the desired open bottom square 14 was created. During opening both the hose piece 13 was moved in the direction z and the lever arms 19 and 19 'further rotated in the direction of the arrow 24. In this case, the rotational speed when the slide plate 15 was and is in contact with the tube piece 13 has been and is changed so that the speed component in the direction z was always as large and is as the speed of the tube piece.
  • the open bottom square Shortly after leaving the slide plate 15, the open bottom square hits the pressure roller 20, which can form a Anpressspalt with the transport table.
  • the gap may have a fixed, but adjustable by means of an adjustment measure.
  • the role can also press with its own weight on the table. To increase the contact pressure, the role can be made by spring force in addition to the table.
  • the pressure roller 20 may also form a nip instead of the table with another roller or roller.
  • the roll 20 can also be divided into two, the larger Height of the part of the open bottom square can be considered, which was folded back on itself, which rests on two bags walls.
  • the roller 20 may be tempered in order to impress the folds of the open bottom square even better.

Landscapes

  • Supplying Of Containers To The Packaging Station (AREA)
  • Making Paper Articles (AREA)

Abstract

L’invention concerne un dispositif (1) d’ouverture des extrémités de pièces tubulaires (13) en vue d’obtenir des carrés de sol ouverts (14) constitués de deux parois situées l’une sur l’autre. Le dispositif comprend au moins un dispositif de transport permettant de transporter les pièces tubulaires (13) en position horizontale dans une direction de transport (x) transversale par rapport à la direction d’extension (z) des pièces, et au moins un moyen (15) d’ouverture des carrés de sol (14) mobile dans la direction d’extension (z) et permettant à la paroi supérieure d’une extrémité d’une pièce tubulaire (13) de se rabattre sur elle-même afin de former un carré de sol (14) ouvert. Le ou les moyens (15) d’ouverture des carrés de sol (14) sont au moins temporairement mobiles simultanément dans la direction de transport (x) et dans la direction d’extension (z) des pièces tubulaires (13).
PCT/EP2009/059330 2008-08-05 2009-07-21 Coulisseau mobile pour ouvrir les extrémités de pièces tubulaires WO2010015505A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09780854.7A EP2337678B1 (fr) 2008-08-05 2009-07-21 Dispositif et procédé pour ouvrir les extrémités de pièces tubulaires pour former des fonds à section carrée

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102008040999.5 2008-08-05
DE102008040999 2008-08-05
DE102008063949.4 2008-12-19
DE102008063949A DE102008063949A1 (de) 2008-08-05 2008-12-19 Mitlaufender Schieber

Publications (1)

Publication Number Publication Date
WO2010015505A1 true WO2010015505A1 (fr) 2010-02-11

Family

ID=41501433

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/059330 WO2010015505A1 (fr) 2008-08-05 2009-07-21 Coulisseau mobile pour ouvrir les extrémités de pièces tubulaires

Country Status (3)

Country Link
EP (1) EP2337678B1 (fr)
DE (1) DE102008063949A1 (fr)
WO (1) WO2010015505A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107791582A (zh) * 2016-08-29 2018-03-13 宜兴威尼特集装袋有限公司 纸袋生产系统
CN110450455B (zh) * 2019-06-27 2021-03-23 枞阳县中邦科技信息咨询有限公司 一种包装袋加工用翻折定位设备
WO2021151621A1 (fr) * 2020-01-29 2021-08-05 Windmöller & Hölscher Kg Dispositif permettant de produire des replis d'angle sur des corps de sacs tubulaires

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE619167C (de) * 1934-10-28 1935-09-23 Windmoeller & Hoelscher G M B Kreuzbodenbeutelmaschine
DE912045C (de) * 1952-02-17 1954-05-24 Fischer & Krecke Kg Bodenlegevorrichtung fuer Kreuzbodenbeutelmaschinen
DE19502251A1 (de) * 1995-01-25 1996-08-01 Windmoeller & Hoelscher Vorrichtung zur Herstellung von Kreuzbodensäcken
AT406755B (de) * 1998-10-05 2000-08-25 Starlinger & Co Gmbh Vorrichtung zum öffnen von schlauchförmigen sackkörpern

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE619167C (de) * 1934-10-28 1935-09-23 Windmoeller & Hoelscher G M B Kreuzbodenbeutelmaschine
DE912045C (de) * 1952-02-17 1954-05-24 Fischer & Krecke Kg Bodenlegevorrichtung fuer Kreuzbodenbeutelmaschinen
DE19502251A1 (de) * 1995-01-25 1996-08-01 Windmoeller & Hoelscher Vorrichtung zur Herstellung von Kreuzbodensäcken
AT406755B (de) * 1998-10-05 2000-08-25 Starlinger & Co Gmbh Vorrichtung zum öffnen von schlauchförmigen sackkörpern

Also Published As

Publication number Publication date
DE102008063949A1 (de) 2010-02-11
EP2337678A1 (fr) 2011-06-29
EP2337678B1 (fr) 2017-04-26

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