EP2337678B1 - Dispositif et procédé pour ouvrir les extrémités de pièces tubulaires pour former des fonds à section carrée - Google Patents

Dispositif et procédé pour ouvrir les extrémités de pièces tubulaires pour former des fonds à section carrée Download PDF

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Publication number
EP2337678B1
EP2337678B1 EP09780854.7A EP09780854A EP2337678B1 EP 2337678 B1 EP2337678 B1 EP 2337678B1 EP 09780854 A EP09780854 A EP 09780854A EP 2337678 B1 EP2337678 B1 EP 2337678B1
Authority
EP
European Patent Office
Prior art keywords
opening
moving
tube piece
extension
movable
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.)
Not-in-force
Application number
EP09780854.7A
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German (de)
English (en)
Other versions
EP2337678A1 (fr
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.)
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Publication date
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP2337678A1 publication Critical patent/EP2337678A1/fr
Application granted granted Critical
Publication of EP2337678B1 publication Critical patent/EP2337678B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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

  • 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
  • a forming die perpendicular to the transport direction of the hose pieces, lowered onto the hose pieces.
  • the corner folds of the opened bottom of the sack, which is located in the subsequent bottom opening station, are later located on the fold edge created is formed.
  • the upper wall of the hose piece which may consist of several layers of material, is folded back onto itself along the folded edge.
  • 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.
  • the bottom opening of the bag is folded, so that subsequently in the ground cover sheet station by welding or other joining methods such as bonding the bottom opening thereof with a bottom cover sheet of the bag is completed.
  • An apparatus 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 DE 912 045 discloses a Bodenlegevorraum for cross bottom bag machines, in which a sickle-like Bodenlegeorgan of a drive, which consists of the machine drive and two gears is being driven.
  • This Bodenlegeorgan which can be referred to as means for opening in the sense of the present patent application moves at least partially in the transport direction and in the extension direction of the hose pieces.
  • the gears and the machine drive can be considered as a first means of moving.
  • the sickle-like Bodenlegeorgan touches the hose piece only at certain points, so that pieces of hose, especially if they include tissue plastic tapes are often not opened safely.
  • 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 7. Accordingly, it is provided that the means for opening on a carriage (16) is mounted, which (16) is movable on the coupling element.
  • the pieces of tubing are fed cyclically 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.
  • the invention it is therefore not necessary to stop the pieces of hose to open the hose piece ends. Therefore, a large 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 rotation, care must be taken 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, which can even act on the means for moving at both ends of the hose piece. There may be two for this purpose be provided 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 the 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 attached, thus performing 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 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 extension direction of the tube piece.
  • the plane of the sheet and the hose piece are therefore advantageously - at least almost - parallel.
  • the Fig. 1 schematically shows individual steps for processing a hose, such as a fabric tube, to bags, as done 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 an inventive device for opening ends of hose pieces 13 to open bottom squares 14th
  • 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 D 1 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 non-uniform speed - in the direction of the arrow 24 or in the xz plane - is synchronized with a synchronization unit, not described in detail, for example an electric motor 22 with nonuniformity gear, to the extent that the slider along the x-direction (transport direction of the hose pieces 13) as non-uniform rotational movement can also be achieved when the rotor of the electric motor 22 is moved at a non-uniform rotational speed.
  • the tube pieces 13 are transported at a continuous speed with an unillustrated conveying device, such as a needle or magnetic conveyor belt, in the x direction.
  • an unillustrated conveying device such as a needle or magnetic conveyor belt
  • the (lower) wall of the tube piece 13 facing the support table is moved by means of an in the Figures 3 - 5 Fixing device shown fixed on the table.
  • This fixing device may be a suction conveyor belt 27 or a follower fixing piston.
  • the sliding plate 15 by means of the carriage 16 in the propagation direction z - in the plane of the tube pieces 13 - moved and so folded back the upper wall of the tube piece 13 to itself, so that an open bag bottom 14 - a so-called bottom square - is formed.
  • the non-uniform rotational movement of the lever arms 19 ensures that the sliding plate 15, during the folding back of the upper wall of the tube piece 13, moves at substantially the same continuous speed in the x-direction as the tube pieces 13 itself.
  • a uniform folding can be ensured and a symmetrical bottom square 14 are formed.
  • 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 the Fig. 2 ,
  • a pressure plate 26 can be seen, which forms a horizontal gap with the transport table, not shown.
  • the Andschreibblech 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 based on the FIGS. 4 and 5 clear.
  • a suction belt 27 is arranged between the Andschreibblech and the end of the hose piece. This suction belt is provided with air passage openings 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 air passage openings 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.
  • FIG. 4 shows a similar situation the the FIG. 3
  • 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.
  • 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.

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

Claims (8)

  1. Dispositif (1) pour l'ouverture d'extrémités d'éléments tubulaires (13) vers des carrés de fond ouverts (14), qui sont constitués de deux parois superposées,
    • qui comprend au moins un dispositif de transport avec lequel les éléments tubulaires (13) peuvent être convoyés en position horizontale dans une direction de transport (x), qui s'étend transversalement par rapport à leur direction d'extension (z),
    • qui comprend au moins un moyen (15) permettant d'ouvrir les carrés de fond (14), ce moyen (15) étant mobile dans la direction d'extension (z) et
    • avec lequel la paroi supérieure d'une extrémité d'un élément tubulaire (13) pour la formation d'un carré de fond ouvert (14) peut être rabattue sur elle-même,
    • l'au moins un moyen (15) permettant d'ouvrir les carrés de fond (14) étant mobile au moins simultanément dans la direction de transport (x) et dans la direction d'extension (z) des éléments tubulaires (13),
    • un premier moyen de déplacement (22, 19, 19', 18, 17) étant prévu, avec lequel le moyen d'ouverture (15)
    - est mobile dans la direction de transport (x) des éléments tubulaires (13) ou
    - est mobile dans la direction de transport (x) des éléments tubulaires et dans la direction d'extension (z),
    • le premier moyen de déplacement (21, 16, 17) comprenant un bras de levier (19, 19') qui est logé de manière rotative autour d'un axe de rotation (D3), qui est orientée de manière orthogonale par rapport au plan des éléments tubulaires, et un autre bras de levier (19, 19') qui est logé de manière rotative autour d'un autre axe de rotation (D4), qui est orientée de manière orthogonale par rapport au plan des éléments tubulaires (13),
    • un deuxième moyen de déplacement (21, 16, 17), étant prévu dans la direction d'extension des éléments tubulaires (13), qui est peut être déplacé par le premier moyen de déplacement et porte le moyen d'ouverture (15) et
    • le deuxième moyen de déplacement (16, 17, 21) comprenant un élément de couplage (17) et un dispositif d'entraînement (21), avec lequel le moyen d'ouverture (15) peut être déplacé par rapport au premier moyen de déplacement(21, 16, 17) et
    • les deux bras de levier (19, 19') étant reliés par l'intermédiaire de l'élément de couplage (17), qui est logé de manière rotative dans les deux bras de levier, caractérisé en ce que
    • le moyen d'ouverture est logé sur un chariot (16), ce chariot (16) étant mobile sur l'élément de couplage.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    le dispositif d'entraînement du premier moyen de déplacement peut être synchronisé de façon à ce que le moyen d'ouverture (15) se déplace le long de la direction de transport des éléments tubulaires à la même vitesse que les éléments tubulaires (13).
  3. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif d'entraînement du deuxième moyen est fixé à l'élément de couplage.
  4. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif d'entraînement comprend un vérin pneumatique (21).
  5. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    un moteur électrique (22) est prévu pour l'entraînement d'au moins un bras de levier (19, 19') par l'intermédiaire d'un axe/arbre dans le deuxième centre de rotation (D3, D4).
  6. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    le premier moyen (21) de déplacement et/ou le deuxième moyen (15) de déplacement comprend un dispositif d'entraînement linéaire ou un moteur linéaire.
  7. Procédé d'ouverture d'extrémités d'éléments tubulaires (13) vers des carrés de fond ouverts (14), ces éléments tubulaires (13) étant constitués de parois superposées,
    • au moins un dispositif de transport étant prévu, avec lequel les éléments tubulaires (13) sont convoyés en position horizontale dans une direction de transport (x) qui s'étend dans sa direction d'extension (z),
    • au moins un moyen (15) d'ouverture des carrés de fond (14) étant déplacé dans la direction d'extension (z),
    • pour l'ouverture des extrémités des éléments tubulaires (13) vers des carrés de fond ouverts (14), la paroi supérieure de l'élément tubulaire (13) étant rabattue sur elle-même,
    • l'au moins un moyen (15) d'ouverture des carrés de fond (14) étant déplacé au moins simultanément dans la direction de transport (x) et dans la direction d'extension (z) des éléments tubulaires (13),
    • un premier moyen de déplacement (22, 19, 19', 18, 17) étant prévu, avec lequel le moyen d'ouverture (15)
    - est déplacé dans la direction de transport (x) des éléments tubulaires (13) ou
    - est déplacé dans la direction de transport (x) des éléments tubulaires et dans la direction d'extension (z)
    • un deuxième moyen de déplacement (21, 16, 17) étant prévu dans la direction d'extension des éléments tubulaires (13), qui est déplacé par le moyen de déplacement et portant le moyen (15) d'ouverture et
    • le deuxième moyen de déplacement (16, 17, 21) comprenant un élément de couplage (17) et un dispositif d'entraînement (21), avec lequel le moyen d'ouverture (15) est déplacé par rapport au premier moyen de déplacement (21,16, 17) et
    • le premier moyen de déplacement (21, 16, 17) comprend un bras de levier (19, 19'), qui est logé de manière rotative autour d'un axe de rotation (D3), qui est orienté de manière orthogonale par rapport au plan des éléments tubulaires, et un autre bras de levier (19, 19'), qui est logé de manière rotative autour d'un axe de rotation (D4), qui est orienté de manière orthogonale par rapport au plan des éléments tubulaires (13), les deux bras de levier (19, 19') étant reliés par l'intermédiaire de l'élément de couplage (17), qui est logé de manière rotative dans les deux bras de levier,
    caractérisé en ce que
    • le moyen d'ouverture est logé sur un chariot (16), ce chariot (16) étant déplacé sur l'élément de couplage.
  8. Procédé selon la revendication précédente,
    caractérisé en ce que
    l'au moins un moyen (15) d'ouverture des carrés de fond (14) effectue un mouvement de rotation dans le plan (x, z) de l'élément tubulaire (13) posé à plat.
EP09780854.7A 2008-08-05 2009-07-21 Dispositif et procédé pour ouvrir les extrémités de pièces tubulaires pour former des fonds à section carrée Not-in-force EP2337678B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008040999 2008-08-05
DE102008063949A DE102008063949A1 (de) 2008-08-05 2008-12-19 Mitlaufender Schieber
PCT/EP2009/059330 WO2010015505A1 (fr) 2008-08-05 2009-07-21 Coulisseau mobile pour ouvrir les extrémités de pièces tubulaires

Publications (2)

Publication Number Publication Date
EP2337678A1 EP2337678A1 (fr) 2011-06-29
EP2337678B1 true EP2337678B1 (fr) 2017-04-26

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EP09780854.7A Not-in-force 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

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

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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
CN115335216A (zh) * 2020-01-29 2022-11-11 温德莫勒及霍尔希尔公司 一种用于在管状袋体处产生拐角折叠部的装置

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EP2337678A1 (fr) 2011-06-29
DE102008063949A1 (de) 2010-02-11
WO2010015505A1 (fr) 2010-02-11

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