EP0187351A1 - Dispositif à saisir des éléments individuels d'un tissu, dépliés et de préférence fabriqués en plastique - Google Patents

Dispositif à saisir des éléments individuels d'un tissu, dépliés et de préférence fabriqués en plastique Download PDF

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Publication number
EP0187351A1
EP0187351A1 EP85116338A EP85116338A EP0187351A1 EP 0187351 A1 EP0187351 A1 EP 0187351A1 EP 85116338 A EP85116338 A EP 85116338A EP 85116338 A EP85116338 A EP 85116338A EP 0187351 A1 EP0187351 A1 EP 0187351A1
Authority
EP
European Patent Office
Prior art keywords
brushes
tissue
fabric
bristles
lifting
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.)
Granted
Application number
EP85116338A
Other languages
German (de)
English (en)
Other versions
EP0187351B1 (fr
Inventor
Karlheinz Klebe
Friedrich Hauptstein
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.)
Cessione librawerk Maschinen Fabrik GmbH
Original Assignee
Librawerk Pelz & Nagel & Co KG GmbH
Librawerk Pelz & Nagel & Co Kg ik GmbH
Librawerk Pelz & Nagel 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 Librawerk Pelz & Nagel & Co KG GmbH, Librawerk Pelz & Nagel & Co Kg ik GmbH, Librawerk Pelz & Nagel KG filed Critical Librawerk Pelz & Nagel & Co KG GmbH
Priority to AT85116338T priority Critical patent/ATE41401T1/de
Publication of EP0187351A1 publication Critical patent/EP0187351A1/fr
Application granted granted Critical
Publication of EP0187351B1 publication Critical patent/EP0187351B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/22—Separating articles from piles by needles or the like engaging the articles

Definitions

  • the invention relates to a device for detecting individual flat-lying fabric parts or fabric bags, preferably made of plastic, in particular for lifting or lifting at least a portion of the fabric parts or fabric bags from a stack with at least one fabric part held on a lifting and / or swiveling device or the gripper element gripping the bag.
  • the claws must penetrate relatively deep into the tissue in order to be able to grasp it safely. As a result, there is a risk that the claw tips will reach through the uppermost tissue part of the stack or sack when a tissue part or tissue sack is lifted from a stack and also grasp the tissue part underneath. This results in problems and malfunctions in the further devices downstream of the separation when separating flat-lying tissue parts from a stack.
  • the invention has for its object to develop a device of the type mentioned in such a way that the disadvantages described avoided and a non-positive detection of the tissue parts achieved with gentle treatment and when lifting or lifting a individual tissue parts from a stack secure separation is guaranteed.
  • the device according to the invention is characterized in that at least one brush equipped with a plurality of bristles is provided as the gripper element, which can be pressed in the direction transverse to the tissue plane against the tissue part to be detected in each case and with its bristles engaging in the tissue part in the direction is held transversely to the longitudinal extent of the bristles back and forth on the lifting and / or pivoting device.
  • the invention provides at least two separate brushes, both of which can be pressed in the direction transverse to the tissue plane against the tissue part to be detected and with their bristles engaging in the tissue part against each other in the direction transverse to the longitudinal extension of the bristles back and forth - are held on the lifting and / or swiveling device.
  • the brushes in this arrangement are moved so far from each other after the pressure has been applied to the tissue in the direction transverse to the tissue plane that the area of the tissue located between the brushes is stretched. In this position of the brushes, the tissue part or the tissue bag can be lifted off the base or the stack and transported to another location.
  • the bristles are designed as steel bristles which, in comparison to the individual fabric threads or fabric tapes also provided in the case of plastic fabrics, have a relatively high bending stiffness and elasticity and in this way promote the grasping of the respective fabric parts.
  • the bristles of the individual brushes are inclined in the direction of engagement at least in the region of their free ends.
  • the bristles additionally catch or engage under the individual tissue threads or ribbons when the brush or the brushes grasp the tissue part or the tissue sack.
  • each brush is connected to the free end of a swivel lever on which a swivel drive engages.
  • the pivot lever can itself be designed as a lifting device or can be connected to a lifting device in order to be able to grasp and also lift the tissue part by means of the brush held at its free end.
  • the swivel levers can expediently be designed as double-armed levers and rotatably mounted on a vertically movable crossmember and with their ends facing away from the brushes via a telescoping end Drive connected to each other.
  • the swivel drive for the swivel levers can be designed relatively simply in a mechanical design, for example as a spindle drive. However, a piston-cylinder arrangement is preferred as the swivel drive.
  • the aforementioned drive for the swivel lever enables such an engagement of the brushes in the tissue part to be detected that, for releasing the tissue part, for example after transfer to another location, the brushes can be moved together beyond their initial position, thereby automatically releasing the Allow tissue part. If necessary, the brushes can also be returned to the release position against the action of the swivel drive which spreads them by means of a spring.
  • three brushes arranged directly next to one another can be provided, one of which is held so that it can be moved back and forth relative to the other two .
  • a swiveling of the brushes in the direction of the tissue plane is not necessary for grasping the tissue sections or tissue parts with this device, since the brushes already grasp the tissue in the manner described above due to their relative movement.
  • the brushes are expediently designed as flat brushes, i.e. their free ends of the bristles end in a common plane.
  • At least two brushes in the form of concentrically arranged rings can also be provided and held pivotable relative to one another about their central axis.
  • This device is also particularly suitable for the detection of smaller tissue parts or for lifting a tissue section of larger tissue parts, for example for the purpose of separation.
  • At least two brushes can also be designed as round brushes which can be rotated about axes running parallel to the plane of the fabric part.
  • the opposite movement of the brushes can be generated with a single drive, only relatively small rotary movements of the brushes being required to tighten the tissue part located between the brushes.
  • the device described is to be used for grasping tissue parts or bags of larger dimensions, it is advisable to provide the brushes individually or in the multiple arrangement described in the region of the corners of the tissue part or bag for engagement.
  • the device described is not only suitable for the detection and lifting of tissue parts or bags, but it can be according to a special embodiment can also be used to open sack mouths in that at least two brushes which can be moved back and forth are assigned to the tissue walls lying one on top of the other in the flat state of the sack and are arranged opposite one another in the direction perpendicular to the plane of the tissue walls. It is not necessary for the two opposite pairs of brushes to perform a movement perpendicular to the plane of the tissue walls, but it is sufficient if only one pair of brushes executes this movement and the other pair of brushes is held in its position.
  • the drawing shows exemplary embodiments of the invention in a schematic representation.
  • a hydraulically actuated pressure device 2 is provided at one end of a cantilever arm 1 which is held in a stationary manner and has a pressure stamp 2a which can be raised and lowered.
  • a piston-cylinder arrangement 3 is articulated, which can be pivoted about its articulation point on the cantilever arm 1 via a further piston-cylinder arrangement 4.
  • a gripper element in the form of a brush 5 is provided, the bristles 6 of which, in the example shown, extend inclined away from the pressing device 2.
  • the piston-cylinder arrangements 3 and 4 together form a lifting and swiveling device for the brush 5 in order to be able to transfer it to the different positions shown in FIGS. 2 and 3.
  • the cantilever arm 1 with the elements held thereon is arranged above a stack 8 of fabric parts or fabric bags located on a base 7. Laterally next to the stack 8, a gripper device 9 can be seen, the gripper arms of which are equipped with clamping jaws and can be transferred into the gripping and release position and which is also held in the direction of the double arrow 10 by means of a drive device not shown in the drawing.
  • the pressure stamp 2a of the pressure device 2 is lowered and pressed onto the stack 8, and the brush 5 with its bristles 6 is also pressed onto the stack 8 by actuating the piston-cylinder arrangement 3 lowered and pressed against the stack.
  • the piston-cylinder arrangement 3 is pivoted so far towards the gripper 9 by the piston-cylinder arrangement 4 which is further provided that the bristles 6 engage in the uppermost tissue part or the uppermost tissue bag 8a between the pressure stamp 2a and the pressure or point of engagement of the bristles 6 is stretched. In this way, a frictional or form-fitting connection is created between the bristles and the tissue threads or fabric tapes captured by them, so that when the brush 5 is raised, the tissue part captured by the bristles 6 is also lifted.
  • the position of the brush 5 in engagement with the uppermost fabric part or fabric bag 8a still lying on the stack is shown in solid lines and the broken line shows the raised position of the brush 5 and the top fabric part or fabric bag 8a entrained by this brush .
  • the Gripper device 9 are actuated in order to grasp the edge of the fabric part or fabric bag 8a which projects beyond the brush 5 and faces the gripper device 9.
  • the piston-cylinder arrangement 3 with the brush 5 held thereon is pivoted back in the direction of the pressing device 2, so that the bristles 6 of the brush 5 are in a disengaged position with the tissue part or tissue bag 8a be transferred.
  • the tissue part or tissue bag 8a which is gripped by its one edge by the gripper device 9 can now be removed from the stack 8 and transported away as a single tissue part or tissue bag.
  • the described process can be repeated in order to further separate the tissue parts or tissue bags forming the stack.
  • a lifting device 12 which is movable in its longitudinal direction is held on a carrier 11 and is connected at its free end facing away from the carrier 11 according to FIG. 5 to a supporting beam 13, which in turn is at the ends is each equipped with a similar gripping device, generally designated 14.
  • the lifting device 12 is designed as a piston-cylinder arrangement, the piston rod of which is connected to the cross member 13. 4, the lifting device 12 fastened in the direction of the double arrow 17 to the supporting beam 11 with the associated gripping devices 14 is shown in solid lines above a stack 8 and in dashed lines in a position above a depositing table 16 posed.
  • the gripping devices 14 are each equipped with two brushes 18 and 19 which can be moved back and forth, the design and operation of which are described in detail in connection with FIGS. 6 to 8.
  • FIGS. 6 to 8. The design of the gripping devices results from FIGS. 6 to 8. In these figures, the gripping devices are shown without an outer casing in order to better explain the functionality.
  • the brushes 18 and 19 are fastened to the lower free ends of the levers 20, which are designed as double-armed levers and are held on a crossbar 21 via pivot axes 22 and 23, and at their ends remote from the brushes 18 and 19 via a telescope acting drive 24 are interconnected.
  • the telescopic drive 24 engages via articulation points at the upper ends of the double-armed lever 20 and is designed in the example shown as a piston cylinder arrangement which can be acted upon on both sides. When the piston-cylinder arrangement is actuated, the brushes 18 and 19 are moved towards or away from one another in order to achieve the positions shown in FIGS. 7 and 8.
  • the brushes 18 and 19 shown in Figs. 4 to 8 are designed as flat brushes, i.e. their bristles 26 end in a common plane.
  • the bristles 26 are designed as steel bristles.
  • the figures show that the bristles of the brush 18 with their free ends in one direction and the bristles 26 of the brush 19 with their free ends in the opposite direction are inclined. The inclined course of the free ends of the brushes corresponds to the direction of engagement of the brushes in the flat-lying tissue part or tissue bag 8a to be detected.
  • the bristles can have hardened and ground tips at their free ends.
  • the brushes are held interchangeably on the levers assigned to them, so that they can be replaced and replaced when worn. In this way it is possible to use brushes with bristles of different spacing and different stiffness, depending on the structure of the tissue part or tissue bag to be gripped by the brushes.
  • Brushes whose bristles are so closely arranged that a bristle is provided on at least 4 mm 2 and the brush has a dimension of at least 4 cm 2 have proven useful for gripping plastic fabric bags, so that more than 100 at a point of attack of the brush Bristles come into contact with the tissue surface.
  • the brushes 18 and 19 in the position shown in FIG. 6 are lowered onto the fabric part 8a and, with simultaneous pressure on the fabric part, by actuating the piston-cylinder arrangement 24 into that shown in FIG. 7 Position transferred.
  • the fabric part 8a can be removed from its base, for example from the stack 8 shown in FIG. 4, lifted off and transferred to another location, for example according to FIG. 4, on the storage table 16.
  • the brushes 18 and 19 are transferred into the position shown in FIG. 8 by means of the piston-cylinder arrangement 24. Characterized in that the brushes 18 and 19 are moved against each other, the bristles 26 of the brushes 18 and 19 come out of engagement with the surface of the fabric part 8a, so that the fabric part 8a is released from the bristles 26 of the brushes 18 and 19 and can be deposited.
  • FIG. 8 shows that to release the tissue part, the brushes 18 and 19 are brought into a more approximate position than is the case according to FIG. 6 when the tissue part is gripped. In the position of the brushes 18 and 19 as shown in FIG. 8, the fabric part comes out of the action of the bristles 26 of the aforementioned brushes solely due to the force of gravity, so that any manipulations for the release of the fabric parts are not necessary.
  • a Suspension mechanism 27 is provided which, when the piston cylinder arrangement 24 is released in the position according to FIG. 8, acts on the right-hand double-armed lever 20 in the position shown in FIG. 8 by the spring 27a tensioned in this position and the return bolt 27b under the action of this spring, and this in the in Fig. 6 pivots back position.
  • three brushes 28, 29 and 30 which can be moved relative to one another are provided, of which the brushes 28 and 30 are held stationary on the lifting device, for example via the holding bracket 31 shown in FIG. 9, while the brush 29 is held on an upstanding web 32, which in turn is attached to the piston rod of a piston-cylinder arrangement 33 in such a way that the brush 29 relative to the brushes 28 and 30 in the direction of the double arrow 34 is movable.
  • the bristles of the brushes 28 and 30 are formed such that their free ends in one direction and the bristles of the brush 29 are inclined in the other direction, so that the portion of the tissue part gripped by the brushes between the brushes is under tension is held.
  • two brushes 35 and 36 are provided in the form of concentrically arranged rings.
  • the brush 35 is fastened to the rotatably held housing of a rotary drive 37, while the brush 36 is connected to a drivable shaft 38 or rotary drive 37.
  • the bristles of the brushes 35 and 36 are inclined in opposite directions, at least at their free ends, in order to achieve the effect already described in connection with the other figures when grasping the tissue part.
  • FIG. 13 a brush arrangement is shown in which two brushes 39 and 40 are provided in the form of round brushes, which keep pivot axes 41 and 42 pivotable relative to one another in the direction of the double arrows shown, about axes of rotation 8a to be grasped parallel to the plane ces tissue part 8a are. It is not necessary to provide bristles on the entire circumference of the round brushes since only relatively small angular movements of the brushes 39 and 40 about their axes of rotation 41 and 42 are required to tighten and release the tissue part 8a to be detected.
  • Fig. 13 shows that the bristles 26 of these brushes in total in the direction of engagement. that is to say, inclined in an inclined manner. P.est training is also in the other brushes described above instead of their execution with only inclined running free ends possible.
  • the drive required for the brushes 39 and 40 in FIG. 13 is not shown in the drawing, just as for the arrangements according to FIGS. 9 to 12, the lifting device connected to the respective gripping devices is not shown for reasons of clarity. However, the lifting device can be designed in the same way as is shown in FIGS. 4 and 5.
  • the brush arrangements according to FIGS. 9 to 13 can also be used instead of the individual brush 5 in connection with devices according to FIGS. 1 to 3 for lifting only a portion of the tissue part or bag to be detected in each case.
  • FIGS. 5 to 13 are not only suitable for lifting and separating tissue parts or tissue bags, but they can also be provided in an arrangement according to FIG. 14 for opening sack openings.
  • anoronuncenes according to FIGS. 4 to 8 are provided, each with two brushes 18 and 19 that can be moved back and forth, which vertically guide the fabric walls 43a and 43b of the sack designated 43 in the flat state in FIG. 14 move to their level and thus remove from each other so that a corresponding opening 44 of the bag 43 is reached at the mouth thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Treatment Of Fiber Materials (AREA)
EP85116338A 1985-01-04 1985-12-20 Dispositif à saisir des éléments individuels d'un tissu, dépliés et de préférence fabriqués en plastique Expired EP0187351B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85116338T ATE41401T1 (de) 1985-01-04 1985-12-20 Vorrichtung zum erfassen einzelner flachliegender, vorzugsweise aus kunststoff hergestellter gewebeteile.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3500140 1985-01-04
DE3500140 1985-01-04

Publications (2)

Publication Number Publication Date
EP0187351A1 true EP0187351A1 (fr) 1986-07-16
EP0187351B1 EP0187351B1 (fr) 1989-03-15

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EP85116338A Expired EP0187351B1 (fr) 1985-01-04 1985-12-20 Dispositif à saisir des éléments individuels d'un tissu, dépliés et de préférence fabriqués en plastique

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EP (1) EP0187351B1 (fr)
AT (1) ATE41401T1 (fr)
DE (1) DE3568762D1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319251A2 (fr) * 1987-11-30 1989-06-07 Nippon Sheet Glass Co., Ltd. Procédé et dispositif pour la fabrication de verres laminés
WO1993013680A1 (fr) * 1992-01-15 1993-07-22 De Montfort University Manipulation de pieces de tissu
WO1994027900A1 (fr) * 1993-05-27 1994-12-08 Bjoerkloef Tage Dispositif de prehension automatique d'articles souples et sans consistance
WO1997012810A1 (fr) * 1995-09-29 1997-04-10 Bühler AG Dispositif pour suspendre automatiquement des sacs
EP1052206A3 (fr) * 1999-05-07 2002-01-02 TAI Tecnologia Automazione Innovazione S.p.a. Procédé pour enlever une feuille pour vitrage feuilleté d'une pile de feuilles et dispositif correspondant
US20140137513A1 (en) * 2009-04-10 2014-05-22 Gw Services, Llc Ice bagging device
DE102015005660A1 (de) * 2015-04-27 2016-10-27 Beumer Gmbh & Co. Kg Vorrichtung und Verfahren zum Ausrichten und Greifen eines Sacks
US9527610B1 (en) 2008-08-11 2016-12-27 Gw Services, Llc Ice bagging assembly
WO2019137585A1 (fr) * 2018-01-15 2019-07-18 Inwatec Aps Procédé de préhension, de déplacement et de libération d'un morceau de tissu avec un organe de préhension, et organe de préhension

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10357913A1 (de) * 2003-12-11 2005-07-14 Weinmann Holzbausystemtechnik Gmbh Transporteinrichtung für flächenhafte poröse Materialien
CN103818743A (zh) * 2014-03-18 2014-05-28 刘才平 一种用于汽车内饰顶棚面料的自动抓料机构
EP3017940B1 (fr) * 2014-11-04 2017-09-13 Starlinger & Co. Gesellschaft m.b.H. Procédé et dispositif de fabrication de sacs à partir de corps de sac tubulaires

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1348799A (fr) * 1963-02-19 1964-01-10 Schiesser Ag Trikotfabriken Dispositif destiné à saisir et à déposer des éléments d'un tissu pouvant êtrepiqué
DE2160437A1 (de) * 1971-12-06 1973-06-14 Ivanhoe Research Corp Verfahren und vorrichtung zum abheben und trennen des obersten faserigen werkstueckes von einem stapel faseriger werkstuecke
DE3319901A1 (de) * 1983-06-01 1984-12-06 Haver & Boecker, 4740 Oelde Vorrichtung zum oeffnen und zur uebergabe von oben offenen saecken an einen fuellstutzen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1348799A (fr) * 1963-02-19 1964-01-10 Schiesser Ag Trikotfabriken Dispositif destiné à saisir et à déposer des éléments d'un tissu pouvant êtrepiqué
DE2160437A1 (de) * 1971-12-06 1973-06-14 Ivanhoe Research Corp Verfahren und vorrichtung zum abheben und trennen des obersten faserigen werkstueckes von einem stapel faseriger werkstuecke
DE3319901A1 (de) * 1983-06-01 1984-12-06 Haver & Boecker, 4740 Oelde Vorrichtung zum oeffnen und zur uebergabe von oben offenen saecken an einen fuellstutzen

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319251A2 (fr) * 1987-11-30 1989-06-07 Nippon Sheet Glass Co., Ltd. Procédé et dispositif pour la fabrication de verres laminés
EP0319251A3 (en) * 1987-11-30 1990-12-19 Nippon Sheet Glass Co., Ltd. Method and apparatus for manufacturing laminated glass
WO1993013680A1 (fr) * 1992-01-15 1993-07-22 De Montfort University Manipulation de pieces de tissu
WO1994027900A1 (fr) * 1993-05-27 1994-12-08 Bjoerkloef Tage Dispositif de prehension automatique d'articles souples et sans consistance
CN1075014C (zh) * 1995-09-29 2001-11-21 布勒公司 自动挂袋设备
AU709660B2 (en) * 1995-09-29 1999-09-02 Buhler Ag Device for automatically suspending sacks
WO1997012810A1 (fr) * 1995-09-29 1997-04-10 Bühler AG Dispositif pour suspendre automatiquement des sacs
EP1052206A3 (fr) * 1999-05-07 2002-01-02 TAI Tecnologia Automazione Innovazione S.p.a. Procédé pour enlever une feuille pour vitrage feuilleté d'une pile de feuilles et dispositif correspondant
US9527610B1 (en) 2008-08-11 2016-12-27 Gw Services, Llc Ice bagging assembly
US20140137513A1 (en) * 2009-04-10 2014-05-22 Gw Services, Llc Ice bagging device
US9481478B2 (en) * 2009-04-10 2016-11-01 Gw Services, Llc Ice bagging device
DE102015005660A1 (de) * 2015-04-27 2016-10-27 Beumer Gmbh & Co. Kg Vorrichtung und Verfahren zum Ausrichten und Greifen eines Sacks
WO2019137585A1 (fr) * 2018-01-15 2019-07-18 Inwatec Aps Procédé de préhension, de déplacement et de libération d'un morceau de tissu avec un organe de préhension, et organe de préhension
US11370126B2 (en) 2018-01-15 2022-06-28 Inwatec Aps Method for gripping, moving and releasing a piece of cloth with a gripper, and a gripper

Also Published As

Publication number Publication date
ATE41401T1 (de) 1989-04-15
EP0187351B1 (fr) 1989-03-15
DE3568762D1 (en) 1989-04-20

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