EP0611363B1 - Dispositif de changement de bobines - Google Patents

Dispositif de changement de bobines Download PDF

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Publication number
EP0611363B1
EP0611363B1 EP92923387A EP92923387A EP0611363B1 EP 0611363 B1 EP0611363 B1 EP 0611363B1 EP 92923387 A EP92923387 A EP 92923387A EP 92923387 A EP92923387 A EP 92923387A EP 0611363 B1 EP0611363 B1 EP 0611363B1
Authority
EP
European Patent Office
Prior art keywords
bobbin
gripping
gripping arms
gripping arm
arms
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
EP92923387A
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German (de)
English (en)
Other versions
EP0611363A1 (fr
Inventor
Helmut Winkler
Hans-Georg HÖRNDLER
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.)
Maschinenfabrik Niehoff GmbH and Co KG
Original Assignee
Maschinenfabrik Niehoff GmbH and Co 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 Maschinenfabrik Niehoff GmbH and Co KG filed Critical Maschinenfabrik Niehoff GmbH and Co KG
Publication of EP0611363A1 publication Critical patent/EP0611363A1/fr
Application granted granted Critical
Publication of EP0611363B1 publication Critical patent/EP0611363B1/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
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements

Definitions

  • the present invention relates to a device for changing bobbins in a winding machine which receives a bobbin with a substantially vertical axis.
  • Winding machines of the type in question are used to wind up or unwind all types of strand material.
  • Strand-like goods are, above all, products such as wire, wire bundles, strands, all of which may or may not be covered, glass fibers and the like.
  • the strand-like material is wound or unwound on spools after manufacture and usually also in the course of the further machining or processing operations, the spools mostly consisting of metal. Due to the constantly increasing production speed of wire-producing and processing systems, the filling and emptying times of these coils are becoming shorter and shorter, even with large coil dimensions. It is therefore necessary for the rational operational sequence in such a system that the filled or emptied coils are changed relatively quickly against an empty coil or filled coil.
  • a mobile automatic bobbin changing device which among other things. can be used to change bobbins on bobbins with a vertical bobbin axis.
  • This known bobbin changing device has a centrally rotatably mounted support arm, at the opposite ends of which a bobbin can be coupled.
  • the support arm is further provided with devices for rotating the coils coupled to its ends.
  • To change a bobbin on a winder that e.g. To wind up the wire, the bobbin changing device moves to the winder, an empty bobbin being arranged on one side of the support arm and rotating at the same speed as the winding bobbin located in the winder.
  • the bobbin changing device is brought into position on the winder and connected to the largely filled bobbin located in the winder, so that this bobbin is now driven by the bobbin changing device.
  • the support arm is then rotated by 180 °, the wire being cut and taped to the filled coil at the same time.
  • the wire entering the bobbin winder is placed on the bobbin and further wound there.
  • the bobbin changing device of the known type takes a certain time to be brought into the corresponding position after the bobbin changing request signal has been triggered by a bobbin winder. Furthermore, it takes a certain time until the bobbin changing device moves the filled bobbin to a corresponding magazine and a new empty bobbin has recorded so that another bobbin change can be carried out.
  • the use of such a mobile bobbin changing device therefore proves to be problematic when the filling times of the bobbins are reduced and therefore the number of bobbin changes to be carried out increases.
  • the sleeve is in particular a cylindrical sleeve which is wound with yarn in such a way that the yarn has frustoconical end sections.
  • the sleeve is held with two opposing gripping elements, which have a cylindrical region that holds the sleeve in a clamped manner, and a frustoconically opening region, on which the frustoconical end portions of the yarn rest in order to absorb tilting forces.
  • the device is provided for attaching and removing such sleeves to a textile machine. A use of the device beyond the textile machine sector is not disclosed in the document.
  • the present invention has for its object to provide a bobbin changing device which, despite its simple structure, enables a bobbin change to be carried out quickly and reliably on a winding machine with a vertical winding axis.
  • the bobbin changing device has a bobbin support device which can be rotated about a vertical axis and on which four gripping arms are arranged so as to be rotatable.
  • the (inner) ends of the gripper arms are about axes rotatably arranged, which are close to this vertical axis.
  • a drive device is provided with which these gripping arms can be pivoted about their respective axes of rotation, at least the movement of two gripping arms being coupled to one another.
  • At the other (outer) end of each gripper arm at least one coil support is provided.
  • the bobbin support device with the four gripping arms can be raised in a substantially vertical direction by means of a lifting device.
  • the dimensions and swivel angle of the gripper arms and the coil supports are dimensioned such that the gripper arms each have a coil vertical axis can take, with the lower flange of the coil rests on the coil supports.
  • the bobbin located in the winding machine is referred to as a full bobbin, and the other bobbin, which is to be replaced with this bobbin, is referred to as an empty bobbin.
  • the bobbin changing device according to the invention also works in reverse, i.e. if the winding machine is a drain device and the exchange of an empty bobbin takes place with a filled bobbin.
  • the empty spool is brought into a position by a handling device or a conveying device in which it can be gripped by two of the gripping arms which are assigned to one another in motion. As soon as the bobbin in the winding machine is full, this bobbin is also gripped by two of the gripper arms. It should be noted that the two coils can be gripped simultaneously or in succession.
  • the lifting device When both spools are gripped, the lifting device is actuated, whereby the spool supports come into contact with the lower flanges of the spools.
  • the bobbins are raised, the full bobbin located in the winding machine being removed from the drive cone or the centering. If the winding machine also has an upper quill to engage the central bore of the bobbin from above, the quill is moved back out of the bobbin beforehand.
  • a rotating device is then actuated and the coil support device is pivoted through 180 °, as a result of which the empty coil and full coil exchange positions.
  • the lifting device is lowered, so that the empty spool rests on the drive cone of the winding machine, and the possibly existing quill is inserted into the central bore.
  • the gripper arms are then moved away from the coils. Then can take place on winding or unwinding the strand-like material on or from the newly inserted bobbin.
  • the bobbin changing device In order to be able to use the bobbin changing device also in continuous processing processes, it is preferably combined with an intermediate store, on which a certain amount of the strand-like material can be temporarily stored.
  • the bobbin changing device also has the advantage that it has a simpler design than the bobbin changing devices known in the prior art, so that it can be manufactured inexpensively. As a result, it is also possible in the case of larger systems to assign a corresponding individual bobbin changing device to each winding machine.
  • Another significant advantage of this bobbin changing device over other known bobbin changing devices is the fact that no special devices have to be provided in the winding machine for the operation of the bobbin changing device. For the bobbin changing machine to function, it is sufficient that there is a gap under the lower flange of the bobbin in which the bobbin supports can be inserted. Special devices for lifting the bobbins, for releasing or moving out the bobbins do not have to be attached to the winding machine.
  • the gripper arms can be designed to have a large swivel range. As a result, the gripper arms can move far away from the coils, so that the transport of the coils to and from the coil change position can be carried out without any problems.
  • the described embodiment is used in connection with a winding machine on which wire is wound and in which the coil assumes a vertical position during the winding process.
  • the Coil 1 is a filled coil that is to be exchanged for the empty coil 2.
  • Each of the coils has an upper flange 1a, 2a and a lower flange 1b, 2b.
  • the two flanges are connected to the winding core 1c, 2c, a cylindrical winding core being shown in the exemplary embodiment.
  • a conical winding core can also be used, in which case the smaller diameter of the conical winding core is then preferably at the bottom, ie on the lower flanges 1b, 2b.
  • the bobbin changing device designated overall by 10, has a bobbin support device 12 which can be pivoted about a (fictitious), essentially vertical axis 13.
  • the swivel range of the embodiment is dimensioned such that the coil support device can rotate about 185 ° about this axis 13.
  • a first upper plate 16, which is round in the exemplary embodiment, and a likewise round lower plate 18 are arranged at a distance from one another concentrically to this axis 13.
  • Four pivot pins 21 are fastened in these plates 16, 18, as can be seen in particular in the sectional illustration according to FIG. 2.
  • a bearing sleeve 23 is provided with a corresponding bore, the bearing preferably being carried out with roller bearings (not shown in FIGS. 1, 2).
  • a plate-shaped support 29 is arranged on the end of each gripper arm opposite the bearing sleeve, as can be seen in particular from the illustration in FIG. 1 (dashed line there).
  • the support 29 is connected to jaws 30, which have a circular segment-shaped recess 31 for receiving the coil flange.
  • two gripping arms namely the gripping arms 25 and 26 and the gripping arms 27 and 28, act together to hold the coils 1 and 2.
  • This interaction is effected by gears 34, which are each arranged concentrically to the pivot pin 21 and the bearing sleeve 23 adjacent to the lower plate, and the diameter of which is dimensioned such that the corresponding gears 34 of the interacting gripping arms mesh with one another. Since the interacting gripper arms are thereby kinematically coupled to one another, a pneumatically or hydraulically acting piston-cylinder unit 36 or 38 is sufficient to move the gripper arms towards and away from one another.
  • the piston stroke of the piston-cylinder unit 36 or 38 can be dimensioned such that the gripping arms can open so far that practically an angle of approximately 180 ° is formed between the interacting gripping arms 25, 26 and 27, 28 . This, most open position of the gripping arms is shown in dashed lines in FIG. 1.
  • the bobbin support device is received by a base body 45 which, as can be seen in FIG. 2, is preferably fastened directly to the foundation 50 or the corresponding machine frame of the bobbin winder with fastening devices 48.
  • a plate 52 is arranged at a distance from the base body 45 and can be raised and lowered by means of piston-cylinder units 54, 55, the pistons of which are visible in the view according to FIG. 1.
  • the piston-cylinder units are confirmed hydraulically or pneumatically.
  • a support body 60 is rotatably held in the plate 52, this axis of rotation forming the pivot axis 13 of the bobbin changing device.
  • the support body 60 is supported in a known manner by roller bearings or the like. and is therefore not shown in the figures.
  • the rotary movement of the coil support device is effected in the exemplary embodiment by a rotary cylinder 62.
  • the rotary cylinder 62 which is actuated hydraulically or pneumatically, has a fixed part which is fixedly connected to the base body 45 and a rotatable part which is connected to the support body 60.
  • the rotary cylinder 62 internally has a reciprocating piston, this reciprocating piston being connected to a threaded spindle in such a way that the reciprocating movement of the piston is converted into a rotation of the movable part with respect to the fixed part. Since a pressure fluid is required anyway for the actuation of the piston-cylinder units 36, 38, the use of such a rotary cylinder is one Particularly inexpensive and simple design option to effect the rotary movement of the coil support device.
  • a swivel ring provided with a toothing on the coil support device concentrically to the axis 13, which is rotated via a pinion and a geared motor.
  • the bobbin changing device has a control device, which is not shown in the figures.
  • This control device is connected to one or more sensors which e.g. detect whether the coil 1 is filled, whether the coil 2 is in the correct position and the like.
  • the control device can issue control commands which cause the piston-cylinder units 36, 38, 54, 55 and the rotary cylinder 62 to be actuated.
  • the control device can also be integrated into a higher-level control device which serves to control larger parts of the production process.
  • the spool 2 While the spool 1 is being wound, the spool 2 is brought into a position by a handling or conveying device (not shown) in such a way that it can be gripped by the gripping arms 25, 26. This positioning of the coil is not hindered by the wide opening angle of these two gripping arms.
  • the piston-cylinder unit 36 are actuated to move the (opened) gripping arms 25, 26 towards one another. This closing movement of the gripping arms is continued until these supports 29 engage under the lower coil flange 2b and the jaws 30 rest against the coil flange. It should be noted that the coil 2 is to be positioned so that it is possible to reach under the coil flange through the support 29.
  • the strand-like material entering the winding machine is cut and the end of the strand-like material is glued to the bobbin 1. This cutting and gluing can be done during the bobbin change.
  • a signal is output which causes the piston-cylinder unit 38 to be actuated.
  • the gripping arms 27 and 28 are moved towards one another until the supports 29 also engage under the lower flange 1b and the flange lies against the jaws 30.
  • the gripping arms can also be closed simultaneously.
  • the piston-cylinder units 54, 55 are actuated and the coil support device is raised.
  • the coil 1 detaches from the centering or from the receiving cone.
  • the rotary cylinder 62 is actuated and the coil support device is pivoted through 180 °.
  • the correct position can be taken by stops or by appropriate sensors be ensured.
  • the coil 1 and coil 2 have now swapped their position in the illustration according to FIGS. 1 and 2.
  • the piston-cylinder units 54, 55 are actuated again and the bobbin support device is lowered, as a result of which the empty bobbin is received by the centering or the receiving cone of the bobbin winder.
  • the free wire end is then connected in a suitable manner to the empty spool and the winding process is continued.
  • the winding machine is preferably preceded by a storage device in which the strand-like material is temporarily stored during the winding change.
  • This arrangement has the advantage that a continuous production process is not interrupted by the spool change.
  • a bobbin winder is preferably used, in which the bobbin rotates during the winding or unwinding process.
  • the bobbin changing device can also be used with a bobbin winder in which the bobbin stands still during winding and the winding takes place by means of a laying device rotating around the bobbin.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Particle Accelerators (AREA)
  • Outside Dividers And Delivering Mechanisms For Harvesters (AREA)

Claims (10)

  1. Appareil automatique de changement de bobine (10) pour des machines de bobinage avec axe de bobinage vertical, dans lesquelles on embobine des bobines (1, 2) qui présentent un noyau de bobine (1c, 2c) ainsi qu'une bride inférieure (1b, 2b), et qui est prévu pour le bobinage et le déroulement de produits en forme allongée, comme du fil, des faisceaux de fils, des torons, des fibres de verre, ou similaires, dans lequel l'appareil de changement de bobine comporte un dispositif de support de bobine (12) susceptible de tourner autour d'un axe vertical (13) et capable d'être déplacé en hauteur au moyen d'un dispositif de levage (54, 55), le dispositif de support de bobine présentant une première position de maintien de bobine pour maintenir une première bobine (1), ainsi qu'une seconde position de maintien de bobine pour maintenir une seconde bobine (2), ladite seconde position de maintien de bobine étant déplacée d'environ 180° par rapport à la première position de maintien de bobine,
    caractérisé en ce que :
    - le dispositif de support de bobine (12) comporte un premier (20), un second (26), un troisième (27) et un quatrième (28) bras de saisie avec une première extrémité intérieure respective, laquelle est agencée en rotation au voisinage de cet axe vertical, et l'axe de rotation de chaque bras de saisie étant parallèle à cet axe vertical,
    - à l'extrémité extérieure de chaque bras de saisie (25, 26, 27, 28) est agencé au moins un appui de bobine (29),
    - il est prévu un dispositif d'entraînement (36, 38) qui assure un mouvement de rotation de ces bras de saisie autour de ces axes de rotation,
    - le premier et le second bras de saisie (25, 26) étant reliés l'un à l'autre au moyen d'un dispositif d'accouplement (34) de telle manière qu'ils maintiennent la première bobine avec ces appuis de bobine (29) dans cette première position de maintien de bobine,
    - le troisième et le quatrième bras de saisie (27, 28) étant reliés l'un à l'autre au moyen d'un dispositif d'accouplement (34) de telle manière qu'ils maintiennent la seconde bobine (2) avec ces appuis de bobine (29) dans la seconde position de maintien de bobine,
    - il est prévu un dispositif de commande qui commande l'appareil de changement de bobine,
    - ledit dispositif de commande, lesdits bras de saisie, ledit dispositif de levage et ledit dispositif d'entraînement étant conçus de telle façon que ladite première bobine est saisie en déplaçant le premier et le second bras de saisie (25, 26) par rapport à la première bobine de telle manière que l'appui de bobine (29) engage par dessous la bride inférieure (1b) de la bobine (1),
    - ladite seconde bobine est saisie en déplaçant le troisième et le quatrième bras de saisie (27, 28) par rapport à la seconde bobine de telle manière que l'appui de bobine (29) engage par dessous la bride inférieure (2b) de la seconde bobine (2), et
    - pour réaliser le changement de bobine, le dispositif de support de bobine (12) avec les quatre bras de saisie est soulevé dans son ensemble par le dispositif de levage (54, 55), il est basculé d'environ 180° par celui-ci, et il est descendu.
  2. Appareil selon la revendication 1, caractérisé en ce que chaque bras de saisie (25, 26, 27, 28) est relié solidairement en rotation avec un pignon (34), lequel est agencé de telle manière qu'il engrène avec le pignon correspondant du bras de saisie associé cinématiquement à ce bras de saisie.
  3. Appareil selon la revendication 2, caractérisé en ce que lesdits de bras de saisie associés cinématiquement l'un à l'autre (25, 26 ; 27, 28) sont reliés l'un à l'autre avec une unité à piston-et-cylindre à double action (36 ; 38) de telle manière que les deux bras de saisie peuvent être déplacés en éloignement et en rapprochement l'un de l'autre par actionnement de l'unité à piston-et-cylindre.
  4. Appareil selon la revendication 1, caractérisé en ce que tous les quatre bras de saisie sont accouplés cinématiquement les uns aux autres.
  5. Appareil selon la revendication 4, caractérisé en ce que l'accouplement cinématique des quatre bras de saisie est assuré par quatre roues dentées, qui sont agencées respectivement de manière concentrique par rapport à l'axe de rotation des bras de saisie et sont reliées solidairement en rotation avec ceux-ci, les roues dentées des bras de saisie voisins l'un de l'autre étant en engrènement mutuel.
  6. Appareil selon l'une ou l'autre des revendications 4 et 5, caractérisé en ce qu'il est prévu une unité à piston-et-cylindre à double effet, laquelle est reliée à deux bras de saisie afin d'assurer un mouvement de pivotement de tous les quatre bras de saisie.
  7. Appareil selon l'une au moins des revendications 1 à 6, caractérisé en ce que les appuis de bobine (29) sont respectivement reliés à une mâchoire (30), laquelle s'appuie contre le diamètre extérieur de la bride de bobine (1b, 2b) lorsque l'appui est positionné au-dessous de la bride de bobine.
  8. Appareil selon l'une au moins des revendications 1 à 7, caractérisé en ce que le mouvement de levage est assuré par deux unités à piston-et-cylindre qui sont agencées symétriquement par rapport à cet axe vertical.
  9. Appareil selon l'une au moins des revendications 1 à 8, caractérisé en ce que la rotation de l'unité de support de bobine (12) autour de cet axe vertical (13) est assurée par un cylindre rotatif (62).
  10. Appareil selon l'une au moins des revendications 1 à 9, caractérisé en ce que l'angle de pivotement des bras de saisie est choisi de telle manière que l'angle d'ouverture entre deux bras de saisie associés cinématiquement l'un à l'autre (25, 26 ; 27, 28) s'élève à environ 180°.
EP92923387A 1991-11-06 1992-11-05 Dispositif de changement de bobines Expired - Lifetime EP0611363B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4136545 1991-11-06
DE4136545A DE4136545B4 (de) 1991-11-06 1991-11-06 Spulenwechselvorrichtung
PCT/EP1992/002539 WO1993009052A1 (fr) 1991-11-06 1992-11-05 Dispositif de changement de bobines

Publications (2)

Publication Number Publication Date
EP0611363A1 EP0611363A1 (fr) 1994-08-24
EP0611363B1 true EP0611363B1 (fr) 1996-10-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP92923387A Expired - Lifetime EP0611363B1 (fr) 1991-11-06 1992-11-05 Dispositif de changement de bobines

Country Status (10)

Country Link
US (1) US5544828A (fr)
EP (1) EP0611363B1 (fr)
JP (1) JP3210016B2 (fr)
CN (1) CN1031454C (fr)
AT (1) ATE143909T1 (fr)
BR (1) BR9206719A (fr)
DE (2) DE4136545B4 (fr)
ES (1) ES2095498T3 (fr)
FI (1) FI98908C (fr)
WO (1) WO1993009052A1 (fr)

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US5544828A (en) 1996-08-13
JPH07504877A (ja) 1995-06-01
ATE143909T1 (de) 1996-10-15
ES2095498T3 (es) 1997-02-16
JP3210016B2 (ja) 2001-09-17
FI98908C (fi) 1997-09-10
CN1082505A (zh) 1994-02-23
FI942073A (fi) 1994-05-05
DE59207346D1 (de) 1996-11-14
CN1031454C (zh) 1996-04-03
DE4136545B4 (de) 2004-05-19
BR9206719A (pt) 1995-10-24
FI942073A0 (fi) 1994-05-05
EP0611363A1 (fr) 1994-08-24
FI98908B (fi) 1997-05-30
WO1993009052A1 (fr) 1993-05-13
DE4136545A1 (de) 1993-05-13

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