EP0565942A1 - Dispositif de manipulation pour bobines, en particulier pour l'alimentation de dispositifs d'enroulement - Google Patents

Dispositif de manipulation pour bobines, en particulier pour l'alimentation de dispositifs d'enroulement Download PDF

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Publication number
EP0565942A1
EP0565942A1 EP93105290A EP93105290A EP0565942A1 EP 0565942 A1 EP0565942 A1 EP 0565942A1 EP 93105290 A EP93105290 A EP 93105290A EP 93105290 A EP93105290 A EP 93105290A EP 0565942 A1 EP0565942 A1 EP 0565942A1
Authority
EP
European Patent Office
Prior art keywords
support
coil
legs
support leg
spool
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.)
Withdrawn
Application number
EP93105290A
Other languages
German (de)
English (en)
Inventor
Helmut Dipl.-Ing. Lämmermann
Jens Dipl.-Ing. Schmieder
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 EP0565942A1 publication Critical patent/EP0565942A1/fr
Withdrawn legal-status Critical Current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

Definitions

  • the present invention relates to a handling device for coils, and in particular for wire coils, which is particularly suitable for winding devices, i.e. Machines in which strand material is applied or removed from the spool is suitable.
  • Strand-like material such as wire, strands with and without plastic sheathing, wire bundles and the like, is spooled or unwound during manufacture and in the individual further processing stages, for which purpose spooling devices are used in which a spool is clamped over a Driver device is set in rotation by a drive device of the winding machine.
  • Plants for the production and further processing of wire are now operated largely fully automatically, so that it is possible to drive one or two shifts per day without operating personnel.
  • the systems must therefore be designed so that filled or emptied bobbins are automatically replaced by a new empty or full bobbin. Since wire manufacturing and most wire processing processes, For example, the covering of a strand with plastic insulation, takes place continuously, it must be ensured that the production is not affected by changing the coil. This can be the case, for example, by using a double winder, as described in DE 35 34 236 C2. In such double winders, a reserve spool is provided on which the wire is wound as soon as the first spool is filled.
  • a short interruption of the winding process to replace the bobbin can be accepted, e.g. if an appropriately dimensioned storage device is available in which the delivered strand material can be temporarily stored.
  • this is only possible if the bobbin changing times are very short.
  • the coils which are usually made of steel, have a cylindrical or slightly conical coil body, at the two ends of which end flanges are arranged.
  • the dimensions are defined in the Federal Republic, for example, by DIN 46397.
  • the steel coils used, for example, in the manufacture and further processing of copper wire have a considerable empty weight and can weigh over a ton when filled. The handling of such coils is therefore only with the appropriate hoists and conveyors possible.
  • DE 39 28 186 Al discloses a gripping device for hoists and for conveying and handling systems for gripping and holding wire coils provided with side flanges.
  • This known gripping device has a base support which is connected to the handling system and two support legs which are arranged at a distance from one another and are oriented essentially at right angles to the base support, the support legs each having at least three projections on their mutually facing surface, which in the holding position enclose a circle, the diameter of which slightly exceeds the diameter of the end flanges of the coil.
  • the distance between the projections is suitably increased and, when the gripping device is in the receiving position, reduced again, in which case the at least three projections prevent lateral displacement of the coil with respect to the gripping device.
  • the entire transport of the coils can be accomplished, i.e. So, the bobbins can for example be removed from a winding device and the like to a shelf warehouse. transported and deposited there.
  • the present invention is therefore based on the object of providing a handling device for handling bobbins which is particularly suitable for loading bobbin devices and which makes it possible to to significantly reduce the bobbin changing times in such winding devices.
  • the handling device according to the invention means a fundamental departure from the hitherto usual design of such handling devices.
  • the previously known handling devices could only be used to remove and transport the bobbins from the winding machines.
  • the handling device now takes over some of the functions that are usually carried out by the winding machine when changing the bobbin. So far, the bobbins have been inserted into the winding machines by the handling device and then the drive device of the winding machine is rotated at low speed until the bobbin is correctly positioned in the winding machine, i.e. until the corresponding driver pin engages in the (standardized) driver bore in the coil flange. Due to the low speed at which the search is carried out, this means a considerable amount of time, which can be 30 seconds and more.
  • the bobbin is already positioned outside the winding machine, ie before the actual changing process.
  • the handling device then only has to bring the spool into the predetermined position in the winding machine, whereupon the spool can be tensioned immediately.
  • the time required for positioning the rotational position of the coil can thus be completely eliminated.
  • the handling device is used to load winding machines in which the strand-like material is wound up, according to a preferred development, the handling device is provided with a masking device for the outer end of the strand material and, if the inner end is also led out of the coil winding, also for the provided inner strand end.
  • a masking device for the outer end of the strand material and, if the inner end is also led out of the coil winding, also for the provided inner strand end.
  • the end of the strand material has hitherto been stuck to the windings with a masking device which is arranged on the winding machine.
  • the winding machine has to turn the coil, which in turn requires a corresponding amount of time, which is saved by the development of the invention.
  • the handling device is only intended to convey coils with a horizontal longitudinal axis, which is relatively often the case, their construction costs can be considerably reduced in accordance with a preferred embodiment of the invention. While in the prior art at least three projections are provided on each support leg in order to fix the coil, in this development of the invention only two projections are used on each support leg, which lie essentially in the same horizontal plane.
  • the spool is gripped by increasing the distance between the two support legs by a predetermined distance and then reducing it again, so that the projections prevent the spool from falling out of the handling device.
  • the spacing of the support legs from one another can also be changed in order to accommodate coils of different lengths.
  • Fig. 1 shows a commercially available, standardized steel spool, as used for winding wire.
  • Such coils are used for winding copper wire or wire bundles running out of a wire drawing machine, for winding strands in a stranding machine, for winding the insulated strand after the sheathing device and for many other purposes.
  • the steel coil designated as a whole by 1, has a cylindrical coil body 2, which is designed to be rotationally symmetrical to the longitudinal axis 3 of the coil, and at the ends of which end flanges 4, 5 are provided, which are designed as flat plates and extend essentially at right angles to the coil body 2.
  • a driver bore 6, 7 is provided in each of the two flanges 4, 5.
  • a driver pin connected to the winding device of the respective winding machine or the bunching machine and the like engages in this driver bore.
  • a standard coil with a flange diameter of 800 mm and a diameter of the coil body of 500 mm can, for example, hold approx. 1000 kg of copper wire.
  • the handling device has a base support 10, which in this exemplary embodiment is always held in a horizontal position and a first support leg 12, which is also referred to below as a fixed support leg and a second support leg 14.
  • the base support 10 is connected to a vertical support structure 15, which , as shown in the embodiment according to FIG. 7, for example can be held in a portal scaffold.
  • a vertical support structure 15 which , as shown in the embodiment according to FIG. 7, for example can be held in a portal scaffold.
  • Two holding projections 18, 19 arranged at a distance from one another are provided on the first supporting leg 12 and two holding projections 20, 21 also arranged at a distance from one another are provided on the second supporting leg 14.
  • the holding projections 18, 19 and 20, 21 are all in the same horizontal plane.
  • An electric motor 23 is arranged on the fixed support leg 12, by means of which the holding projections 18, 19 can be driven.
  • the electric motor 23, which is designed as a geared motor, has a sprocket 24 which is located on the outside, i.e. that is, on the side of the support leg facing away from the coil in its receiving position.
  • the holding projections 18, 19 have a cylindrical body 26, on which the coil flange 4 rests in the receiving position.
  • the cylindrical body 26 is integrally connected to a cylindrical pin 27 which is held in a bushing 30 by means of schematically illustrated roller bearings 29, which in turn is fastened in the support leg 12.
  • a sprocket 32 is rotatably attached. The rotationally symmetrical cylindrical body 26 can thus be rotated about the axis of rotation 28.
  • the holding projections 20 and 21 have a rotationally symmetrical bushing 36 which can be rotated about the axis of rotation 35 and on which the flange 5 of the coil is supported in the receiving position.
  • the bushing 36 as shown schematically in FIG. 5, is rotatably supported by roller bearings 37 on a fixed, cylindrical pin 39 which is fastened in the second support leg 14.
  • the embodiment described here is designed so that the handling device can grip a spool even when it is stretched on a mandrel or between two quills.
  • the support legs 12, 14 are essentially designed as plates, so that they have only a small extent in the longitudinal direction of the coil.
  • incisions 42 are provided in the two support legs, which run essentially along the line of symmetry 43 between the projections 18, 19 and 20, 21.
  • the rotatable projections 18, 19 are driven via a chain 44, which is guided over the chain wheel 24 and over the chain wheels 32 of the projections 18, 19.
  • the chain is guided over a freely rotatable chain wheel 46, which is located on the line of symmetry 43 between the projections 18, 19 and above the incision 42 is located.
  • the sprocket 46 is preferably fastened in an elongated hole which also extends along the line of symmetry 43 between the projections 18, 19, and is fastened in such a way that the chain has sufficient pretension.
  • light barriers 48 are arranged with which the position of the driver bore 7 of a received coil can be determined.
  • An incremental encoder (not shown) is also provided on the motor 23, with which the rotational movement of the chain wheel 24 is detected and the angular position of the coil can thus be changed in a defined manner.
  • round racks 50, 52 are slidably mounted in sockets, of which the sockets 54 and 56 can be seen in the illustration according to FIG. 6.
  • the use of round racks has the advantage that they can also serve as guide means.
  • An electric motor 58 fastened to the base support 10 is connected via a gear 59 to a pinion which cannot be seen in the figures and which meshes with the toothing of the two round racks 50, 52.
  • the support leg 12 is connected to the rack 50 via a bushing 62 and the support leg 14 is connected to the rack 52 via a bushing 64.
  • the connection between the support leg 12 and the bush 62 and the rack 50 is fixed, while the rack 52 has a plurality of predetermined fixing points which determine the position of the bush 64 and thus of the support leg 14 with respect to the rack 52.
  • a masking device 70 is also attached to the base carrier 10.
  • the masking device has two rollers 72, 73, by means of which an adhesive tape stored in the masking device or labels which are arranged on a tape can be applied to the winding of the coil for removal.
  • the masking device has a guide device 75, by means of which the masking device can be moved towards or away from a picked-up spool.
  • the handling device is moved, for example by means of a portal frame, as will be described with reference to FIG. 7, to a spool magazine in order to receive an empty spool.
  • the recording takes place by rotating the electric motor 58, as a result of which the toothed racks move over the pinion connected to it in such a way that both support legs 12, 14 move outwards, ie in the direction in which their distance increases.
  • the stroke of each rack corresponds approximately to the length of the projections 18, 19, 20, 21.
  • the handling device is aligned so that the plane spanned by the line of symmetry 43 of the two support legs is exactly vertical above the coil arranged with the horizontal longitudinal axis, so that the longitudinal axis is part of this plane.
  • the handling device is then lowered and the electric motor 58 is rotated in the opposite direction than before, so that the two support legs close again.
  • the coil is then in the Position, as indicated in FIGS. 3 to 6.
  • the electric motor 23 is actuated and the driver bore 6 is brought into a position which lies on the line of symmetry 43 of the support legs.
  • the empty spool is placed in front of the winding machine to be filled on a support stand (not shown), which preferably has a U-profile that is open at the top.
  • the spool is held on the jack stand so that it cannot rotate.
  • the full bobbin is picked up by the handling device and placed on a second parking stand.
  • the handling device then grips the empty spool and brings it into the winding position in the winding machine. Since the spool is already fixed in its position, the spool can be tensioned immediately and winding can continue.
  • the filled bobbin is then guided to a bobbin magazine, the sealing device 70 being moved towards the bobbin axis during transport such that the baffle rolls 72, 73 lie on the bobbin winding and the end of the strand material can be taped off.
  • the alignment of the empty spool can also take place immediately before or when it is inserted into the winding machine.
  • the procedure described above has the advantage that it enables a faster bobbin change.
  • the filled bobbin can also be taped off during removal from the bobbin winder, but this also means the total bobbin changing time elevated.
  • the handling device can accommodate coils of different sizes. This is indicated in Fig. 6 by the fact that a second position 14 'of the second support leg is shown, through which a small coil designated 1' is received, while in the position designated 14, a large coil 1 is held.
  • the fixing points of the second rack 52 are arranged so that the second support leg can be fixed in the positions that correspond to the length of the usual, standardized coils.
  • the position of the second support leg 14 can also be automatically adapted to the coil length.
  • a lifting cylinder is preferably provided, which is arranged between the supporting leg and the toothed rack assigned to it, in order to displace the supporting leg with respect to the toothed rack.
  • FIG. 7 A further exemplary embodiment of the invention will now be described with reference to FIG. 7, the handling device in its details corresponding to the exemplary embodiment according to FIGS. 2 to 6.
  • the vertical support structure 15 which was described with reference to the exemplary embodiments according to FIGS. 1 to 6 and the alternatives explained, is fastened to the crossbar 81 of a portal frame 80.
  • the crossbar 81 is supported by two or more vertical support frames 83, 84, and is like is indicated schematically by rollers 85, 86, movable in a direction transverse to the plane of the drawing.
  • the vertical support structure 15 is arranged on the crossbar 81 in such a way that it can be raised and lowered by a movable lifting device 89, as shown by the arrow 90. Furthermore, it is possible to move the lifting device 89 with the vertical support structure 15 along the crossbar 81, which is symbolized by the double arrow 92.
  • an electric motor 93 is arranged on the base support, which engages in a toothing attached to the vertical support structure by means of a gear wheel, not shown.
  • the connection of the vertical support structure 15 to the base support is rotatable in this case.
  • the base support and the two support legs can be lifted, lowered and in both directions in this embodiment, i.e. be moved in and perpendicular to the plane of the drawing.
  • a control device is preferably used to control the handling device, by means of which the various functions are controlled centrally.
  • sensor devices which check that the respective functions have been performed correctly.
  • a sensor device is provided, which checks whether a coil for receiving between the support legs 12, 14 is at all for seduction.
  • the handling device is particularly suitable for supplying a large number of winding machines.
  • a central control device is provided which controls the movement of the handling device as a whole.
  • a coupling mechanism is preferably provided which causes the handling device to be controlled by this machine after coupling to the respective machine.
  • the coil is always in a horizontal orientation, i.e. with horizontal longitudinal axis, below the base beam.
  • this alignment it is also possible to provide an alignment in which the coil axis as a whole can be tilted, i.e. e.g. e.g. can be brought from a horizontal to a vertical position.
  • FIG. 8 shows an exemplary embodiment of a holding projection, with which the coil can also be handled with the vertical coil axis.
  • This holding projection has a cylindrical body 96 which is provided with a flanged disc 97. When the coil axis is in a horizontal position, the picked-up coil rests with the flange 4 on the cylindrical body 96.
  • the coil axis is brought into a horizontal position during the rotation, since in this case only the two projections on each support leg on which the coil rests when the coil axis rests must then be designed is in a horizontal position and the support legs assume a predetermined position.
  • any manipulation of the coils is possible, provided that the three or more projections are arranged so that the coil is in relation to the support legs is recorded, ie for example at a constant angular distance on a circle that is slightly larger than the end flange of the coil to be accommodated.

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  • Winding, Rewinding, Material Storage Devices (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
EP93105290A 1992-03-31 1993-03-30 Dispositif de manipulation pour bobines, en particulier pour l'alimentation de dispositifs d'enroulement Withdrawn EP0565942A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924210597 DE4210597A1 (de) 1992-03-31 1992-03-31 Handhabungsvorrichtung für Spulen, insbesondere zum Beschicken von Spuleinrichtungen
DE4210597 1992-03-31

Publications (1)

Publication Number Publication Date
EP0565942A1 true EP0565942A1 (fr) 1993-10-20

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EP93105290A Withdrawn EP0565942A1 (fr) 1992-03-31 1993-03-30 Dispositif de manipulation pour bobines, en particulier pour l'alimentation de dispositifs d'enroulement

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EP (1) EP0565942A1 (fr)
DE (1) DE4210597A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721397A (en) * 1969-11-25 1973-03-20 Japan Steel Works Ltd Automatic reel mounting device for a continuous winding machine
DE3224110A1 (de) * 1981-08-21 1983-03-03 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Drahtaufwickelmaschine
EP0142813A2 (fr) * 1983-11-18 1985-05-29 S.A.M.P. S.p.A. Meccanica di Precisione Dispositif robot pour le remplacement de bobines dans les bobinoirs de fil
DE3928186A1 (de) * 1989-08-25 1991-03-14 Niehoff Kg Maschf Greifvorrichtung fuer drahtspulen und dergleichen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721397A (en) * 1969-11-25 1973-03-20 Japan Steel Works Ltd Automatic reel mounting device for a continuous winding machine
DE3224110A1 (de) * 1981-08-21 1983-03-03 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Drahtaufwickelmaschine
EP0142813A2 (fr) * 1983-11-18 1985-05-29 S.A.M.P. S.p.A. Meccanica di Precisione Dispositif robot pour le remplacement de bobines dans les bobinoirs de fil
DE3928186A1 (de) * 1989-08-25 1991-03-14 Niehoff Kg Maschf Greifvorrichtung fuer drahtspulen und dergleichen

Also Published As

Publication number Publication date
DE4210597A1 (de) 1993-10-07

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