EP0564445A1 - Dispositif pour l'alimentation alternative de matériau à une installation de travail - Google Patents

Dispositif pour l'alimentation alternative de matériau à une installation de travail Download PDF

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Publication number
EP0564445A1
EP0564445A1 EP93890069A EP93890069A EP0564445A1 EP 0564445 A1 EP0564445 A1 EP 0564445A1 EP 93890069 A EP93890069 A EP 93890069A EP 93890069 A EP93890069 A EP 93890069A EP 0564445 A1 EP0564445 A1 EP 0564445A1
Authority
EP
European Patent Office
Prior art keywords
straightening
clamping
rollers
strand
feed
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Withdrawn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
EP93890069A
Other languages
German (de)
English (en)
Inventor
Klaus Dipl.-Ing. Ritter
Gerhard Dipl.-Ing. Dr. Ritter
Gerhard Dipl.-Ing. Schmidt
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.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs GmbH
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 EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP0564445A1 publication Critical patent/EP0564445A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus
    • B21F23/002—Feeding means specially adapted for handling various diameters of wire or rod

Definitions

  • the invention relates to a device for the alternative feeding of different strands of material from a material supply to a processing system, with a threading device which can be pivoted from a material strand receiving position into an insertion position determined by the working line of the processing system and which has a feed roller that can be driven in both directions of rotation and a feed roller that can be moved relative to the feed roller Pressure roller is provided, with a clamping turret pivotable about a horizontal pivot axis, which is provided with a plurality of clamping devices arranged on a circular arc around the pivot axis for holding the front end of each strand of material, and with a straightening unit connected downstream in the production direction for this, which comes from a feed device and at least one straightening device.
  • a device of this type is known in which a pivotable holding device provided with receiving openings for the material strands, for example wires, provided on a circular arc is provided for holding the front ends of a plurality of wires, each of which is inserted into the working line by means of the threading device are transferable.
  • the pivot axis of the turret-like holding device and the threading device run parallel to one another and the movement paths of the threading device and the circular arc formed by the receiving openings intersect at a transfer point.
  • the front end of a strand of material to be processed is first pivoted into the transfer point with the aid of the holding device, then taken over by the threading device, which is also pivoted into the transfer point, and brought into the working line of the processing system.
  • the holding device can be loaded manually and that a great technical effort is required to position the holding device precisely in the transfer point and for positioning the transport rollers both in the transfer point and in the working line of the processing plant.
  • a device for straightening and cutting wire or rod-shaped material which comprises a swiveling magazine consisting of inlet, intermediate and end guides, two fixed pairs of push rollers assigned to the magazine, a turret system with several for has different wire diameters designed straightening tools and a pair of traction rollers downstream of the turret system and a cutting device.
  • the swivel axis of the magazine and the axis of the turret system run parallel to one another and the swiveling of the magazine and the positioning of the turret system in the working position take place synchronously.
  • the object of the invention is to avoid the disadvantages of the known devices and to provide a device for the alternative feeding of a strand of material to a processing system, which can be equipped with different strands of material in a simple catfish, enables a rapid change from one strand of material to another, and moreover permits the processing of the strand of material to be interrupted and, after processing another strand of material in the meantime, to be fed back to the processing plant.
  • the device according to the invention is characterized by this from the fact that the threading device can be pivoted into the working line by means of a working cylinder, which lies in the effective range of the clamping devices of the clamping turret, the clamping devices in turn being pivotable about a horizontal pivot axis by means of a pivoting drive of the clamping turret for taking over the front end of the material strand from the threading device into the working line, and that the feed roller of the threading device can be actuated for advancing the front end of the material strand into the straightening unit and for withdrawing this end from the straightening unit, the straightening device of which has straightening rollers arranged in opposite rows, the center distance of the straightening rollers of one row from the straightening rollers of the other row is changeable by means of an actuator.
  • the straightening rollers of one row for guiding the strand of material can preferably be moved into a threading position and the straightening rollers of both rows can be moved individually or together into a working position for straightening the strand of material.
  • the clamping devices are each provided with at least one clamping tool for clamping the front end of the material strand, the clamping tool having a plurality of rotatable clamping rollers which are arranged in two opposite rows, in which the clamping rollers at least one row individually or together can be adjusted relative to the pinch rollers of the other row by means of an actuator, the pinch rollers being provided with circumferential grooves adapted to the shape of the material strand.
  • the feed device of the straightening unit consists of feed rollers which can be driven in both directions of rotation, one feed roller being adjustable relative to the other feed roller and the feed rollers being provided with recesses adapted to the shape of the material strand.
  • a further development according to the invention is characterized in that the straightening unit, as known per se, with a further straightening device is provided, and that for feeding the strand of material, this second straightening device can be pivoted from its working position into a threading position with the aid of a swivel drive, the circumferential grooves of the straightening rollers of the second straightening device having the circumferential grooves of the pinch rollers of the clamping device pivoted into the working line, the feed rollers the feed device and the straightening rollers of the first straightening device are aligned.
  • a frame 1 is shown schematically, which is provided with a front side plate 2, an intermediate plate 3 and a rear side plate 4.
  • a threading device 5 is provided between the front side plate 2 and the intermediate plate 3 parallel to a working line L. running, horizontal pivot axis 6 pivotally mounted.
  • a clamping turret 7 is pivotally mounted according to the double arrow P2 about a horizontal pivot axis 8 running parallel to the working line L.
  • the working line L is determined by a processing system for the material strand which is arranged downstream of the device.
  • the threading device 5 consists essentially of a pivotable about the pivot axis 6 support plate 9, which can be driven by means of a feed drive 10 according to the double arrow P3 in both directions of feed roller 11 and a pressure roller 12, which on a with the help of a clamping cylinder 13 according to the double arrow P4 pivotable clamping lever 14 is rotatably mounted.
  • the surface of the feed roller 11 is roughened, for example toothed, in order to increase the frictional engagement.
  • a pivotally mounted working cylinder 15 is supported, the working piston 16 of which can be displaced according to the double arrow P5 and is articulated on the support plate 9.
  • the threading device 5 is pivoted from a receiving position shown in full lines in FIG. 1 into a feed position 5 'shown in dash-dotted lines in FIG. 1, in which the feed roller 11 and the pressure roller 12 form The roller gap is aligned with the working line L.
  • FIG. 2 shows the threading device in an intermediate position 5 ′′, which was selected only for better illustration of the individual components of the threading device.
  • the clamping turret 7 consists essentially of a swivel frame 17, which is designed like a two-armed rocker and is pivotably mounted approximately in the center about the swivel axis 8 in the frame 1.
  • the pivot frame 17 has a front side plate 18 and a rear side plate 19, which on one side of the pivot axis 8, ie in FIG. 1 below the pivot axis 8, each in the form of a swivel arm and are connected to one another by a connecting support 20.
  • the two side plates 18 and 19 are connected with the aid of a plurality of cross members 21 which are essentially on a circular arc about the pivot axis 8.
  • the connection carrier 20 carries a spindle drive 22 which interacts with a pivotable spindle 23 which is supported on the frame 1.
  • the spindle drive 22 consists of a drive motor 24, a drive chain 25 and a spindle nut 26.
  • the spindle drive 22 When the spindle drive 22 is activated, it moves according to the double arrow P6 along the spindle 23 and thereby causes the corresponding pivoting movement of the clamping turret 7 according to the double arrow P2.
  • On each cross member 21 is a clamping device 27; 28; 29; 30; 31 and 32 arranged, which can be pivoted into the working line L by means of the pivot frame 17.
  • the clamping device 32 In the position of the swivel frame 17 shown in full lines in FIG. 2, the clamping device 32 is, for example, in the working line L, while in the position 17 'of the swivel frame shown in broken lines, the clamping device 27 is located in the working line L.
  • the clamping devices 27, 28, 29, 30, 31 and 32 are each adapted to a strand of material to be processed and can be designed in various forms within the scope of the invention and can be equipped with a wide variety of clamping tools.
  • the clamping tools consist of a plurality of clamping rollers 33 which are rotatable about their axis and which are arranged in two opposite rows which run essentially parallel to the working line L, the clamping rollers of one row being opposite the clamping rollers of FIG another row staggered, ie arranged on a gap.
  • the pinch rollers of the individual rows are also opposite one another.
  • the number and diameter of the Pinch rollers 33 are chosen such that a secure clamping connection is ensured without damaging the surface of the strand of material and also the front end E of the strand of material remains as straight as possible.
  • the clamping rollers 33 according to this exemplary embodiment are provided for processing a wire-shaped material strand D with a circumferential groove 34 corresponding to the diameter of the wire and are adjustable relative to the clamping rollers of the other row by means of an eccentric adjustment 35.
  • Hiebei it is possible within the scope of the invention to employ only one row of pinch rollers according to the double arrow P7 or P8 or the pinch rollers of both rows together. Furthermore, it is possible within the scope of the invention to form individually selectable pinch rollers of one or both rows.
  • FIG. 4 shows a further exemplary embodiment of a clamping roller 33, which is provided with circumferential grooves 36 for receiving a strand of material D 'consisting of two individual wires, a so-called double wire.
  • the clamping tool shown in FIG. 5 consists of a clamping jaw 37 provided with recesses for receiving the strand of material to be processed and a counter jaw 38.
  • the clamping jaw 37 can be displaced against the counter jaw 38 according to the double arrow P9 with the aid of an adjusting device (not shown).
  • the counter jaw 38 can be displaced according to the double arrow P10 against the jaw 37.
  • the clamping jaw 37 and the counter jaw 38 can be adjusted together against one another.
  • the shape of the clamping jaw 37 and the counter jaw 38 is adapted to the material strand to be processed in such a way that on the one hand a secure clamping connection is ensured without damage to the material strand and on the other hand the front end E of the material strand remains as straight as possible.
  • At least the jaw 37 is with recesses adapted to the shape of the strand of material.
  • several clamping rollers 33 as well as clamping and counter jaws 37 and 38 can be provided together as clamping tools in one clamping device.
  • supply spools 39, 40, 41 and 42 are shown, each of which can be rotated about its longitudinal axis in accordance with the double arrow P11 and can be driven at least in a direction of rotation directed against the production direction P12 and a supply for one strand of material D1; D2; Form D3 or D4.
  • the threading device 5 and the clamping turret 7 and a subsequent straightening unit 43 connect to the supply spools 39, 40, 41 and 42.
  • the straightening unit 43 is followed by a processing system 44 for a strand of material, wherein the processing system 44 can consist, for example, of a bending and cutting system or only one cutting system.
  • An inlet guide 45 is arranged between the clamping turret 7 and the straightening unit 43.
  • the straightening unit 43 essentially consists of a straightening device 46 arranged on the inlet side, an intermediate guide 47, a feed device 48 and a straightening device 49 arranged on the outlet side.
  • the straightening devices 46 and 49 have straightening rollers 50 and 51 which can be rotated about their axis, the axes of the straightening rollers of one Straightening device 46 are rotated by 90 ° to the axes of the straightening rollers of the other straightening device 49.
  • the straightening rollers 50 and 51 of both straightening devices 46 and 49 are each arranged in rows 52 and 53, as shown in FIGS. 6a and 6b, the straightening roller 50 of one row 52 being offset relative to the straightening rollers 51 of the other row 53, ie to a gap, are arranged.
  • the straightening rollers 50 of the series 52 are arranged in a stationary manner, whereas the straightening rollers 51 of the series 53 can be adjusted according to the double arrow P13 either jointly or individually with the aid of a common actuator or several individual actuators 54.
  • the roller gap between the straightening rollers 50 and 51 is selected in this threading position such that both pushing the strand of material between the straightening rollers 50 and 51 without great effort, as well as a perfect guidance of the strand of material through the straightening rollers 50 and 51 becomes.
  • the adjustable straightening rollers 51 of the row 53 are further delivered from this threading position in accordance with the directional arrow 13 pointing to the stationary straightening rollers 50 until they reach a so-called working position, which is a function of the diameter, the material properties of the strand of material to be straightened and the pulling speed of the strand of material by the straightening unit 43 must ensure perfect straightening of the strand of material by the straightening rollers 50 and 51.
  • the straightening rollers 50 and 51 are adapted in their diameter and their shape to the material strand to be straightened.
  • the circumferential grooves of the straightening rollers 50 and 51 can be designed similarly to the grooves 34 and 36 of the pinch rollers 33 shown in FIGS. 3 and 4.
  • the inlet-side straightening device 46 can be pivoted with the aid of a swivel drive 55 corresponding to the double arrow P14 from the working position 46 shown in FIG. 6a into a threading position 46 'shown in FIG. 6b.
  • This pivoting of the inlet-side straightening device 46 into the threading position according to FIG. 6b is always necessary when the strand of material consists of two adjacent individual wires, a so-called double wire.
  • the corresponding recesses of all the straightening rollers 50 and 51 must lie in a continuous straight line.
  • the feed device 48 consists of at least one pair of feed rollers which can be driven in both directions of rotation in accordance with the double arrow P 1, one of which Feed roller 56 according to the double arrow P16 relative to the other fixed feed roller 57 is displaceable, so that between the two feed rollers 56 and 57 on the one hand a large passage gap required for threading the strand of material and on the other hand a small opening gap required for advancing the strand of material is formed.
  • the feed rollers 56 and 57 are also provided with circumferential grooves adapted to the strand of material, for example similar to the circumferential grooves 34 and 36 shown in FIGS. 3 and 4.
  • the device according to the invention works in the following way: The front end E of the material strand D1; D2; D3 or D4 is placed in the open gap between the feed roller 11 and the pressure roller 12 of the threading device 5 in the receiving position and firmly clamped between the feed roller 11 and the pressure roller 12 by pivoting the clamping lever 14. The threading device 5 then pivots according to the double arrow P1 in its feed position 5 ', so that the strand of material D1; D2; D3 or D4 enters work line L.
  • the clamping device adapted to the respective strand of material is then pivoted into the working line L with the help of the swivel frame 17 in accordance with the double arrow P2 in such a way that the clamping gap formed by the clamping rollers 33 (or the clamping and counter jaw 37, 38) with the working line L is in flight.
  • the front end E of the respective strand of material is then pushed between the pinch rollers 33 (or the open clamping and counter jaw 37 or 38) corresponding to the direction of the double arrow P17 pointing in the direction of production P12 until the beginning of the strand of material approximately matches the rear side panel 19 of the swivel frame 17.
  • the front end E of the strand of material is frictionally engaged in the clamping rollers 33 in the working position (or by adjusting the clamping and counter jaws 37 and 38 corresponding double arrows P9 or P10) clamped.
  • the design of the clamping tools in the form of clamping rollers 33 has proven to be particularly advantageous because an additional employment of the clamping rollers 33 for clamping the front end E of the strand of material is not necessary, so that the clamping rollers 33 can always remain in the working position unchanged. Due to the pinch rollers 33 in the working position, the front end E of the material strand is also aligned and guided on a large section parallel to the working line L.
  • the pressure roller 12 of the threading device 5 is then pivoted away according to the double arrow P4, so that the clamping of the strand of material is released by the threading device 5 and the threading device 5 can be pivoted back into its receiving position 5 for receiving a new strand of material according to the double arrow P1. These processes are repeated until all clamping devices of the clamping turret 7 are equipped with material strands.
  • the clamping closure of the strand of material is maintained by the threading device 5 remaining in the feed position 5 and the front end E of the strand of material is driven by the driven feed roller 11 further advanced through the inlet guide 45, the possibly located in the threading position, the inlet-side straightening device 46, the intermediate guide 47, the feed device 48 and the straightening device 49 arranged on the outlet side in accordance with the production direction P 12.
  • the straightening rollers 50 and 51 of the two straightening devices 46 and 49 as well as the feed rollers 56 and 57 of the feed device 48 are each in their threading position.
  • the inlet-side straightening device 46 is pivoted into its working position and the adjustable straightening rollers 51 of both straightening devices 46 and 49 and the adjustable feed roller 56 of the feed device 48 are brought into their working position. Finally, the pressure roller 12 of the threading device 5 is pivoted away and the threading device 5 is pivoted back into its receiving position.
  • the feed of the material strand is now carried out by the feed device 48 which, in comparison to the threading device 5, must apply correspondingly higher feed forces in order to pull the material strand both through the straightening rollers 50 and 51 of the two straightening devices 46 and 49 in the working position and through that of the straightening unit 43 downstream processing plant 44 to push.
  • the threading device 5 is moved into its feed position 5 'in the working line L pivoted and the strand of material clamped by positioning the pressure roller 12 between the feed roller 11 and the pressure roller 12. Then the feed rollers 56 of the feed device 48 open and the straightening rollers 51 of the straightening devices 46 and 49 are brought into their threading position and, if appropriate, the inlet-side straightening device 46 is also pivoted into its threading position.
  • the feed roller 11 is now driven in such a way that the strand of material is pulled out of the processing system 44 and the straightening unit 43 counter to the direction of production P 12 until the beginning of the retracted strand of material is approximately aligned with the rear side plate 19 of the swivel frame 17.
  • the supply spools 39, 40, 41 and 42 can be driven in the corresponding direction of the double arrow P11, so that the retracted strand of material is wound up on the supply spools.
  • a buffer for example in the form of a loop, for receiving the withdrawn strand of material.
  • the strand of material is clamped in the clamping device of the clamping turret 7, the pressure roller 12 is opened and the threading device 5 is pivoted back into its receiving position 5.
  • the swivel frame 17 is then pivoted in accordance with the double arrow P2 until the corresponding clamping device with the new strand of material to be processed enters the working line L.
  • the threading device 5 is then pivoted into its feed position 5 in the working line L, the pressure roller 12 is placed against the strand of material and the feed roller 11 is driven to advance the front end E of the new strand of material through the straightening unit 43 until the beginning of the strand of material at least has passed the feed rollers 56, 57 of the feed device 48.
  • the straightening rollers 51 of the straightening devices 46 and 49 and the advancing roller 56 of the advancing device 48 and optionally the inlet-side straightening device 46 then take up their working position so that the processing of the new strand of material can be carried out.
  • the clamping rollers 33 of the clamping device 32 located in the working line L, the straightening rollers 50, 51 of the straightening device 49 on the outlet side and the feed rollers 56, 57 of the feed device 48 must lie in a common plane, for example in a vertical plane, as shown in FIG. 6a.
  • the straightening rollers 50, 51 of the inlet-side straightening device 46 must therefore also be pivoted into this plane for threading, as already described and shown in FIG. 6b.
  • the plane of the pinch roller 33 located in the working line L must also be inclined, as shown in FIG. 1.
  • the invention is not limited to the exemplary embodiments shown, but rather they can be modified in various ways within the scope of the general inventive concept.
  • the sequence of the straightening devices and the feed device within the straightening unit can be freely selected and can be adapted to the requirements of the downstream processing system.
  • a corresponding control device is provided to control the movement sequences of the device according to the invention.
  • measuring devices are arranged in the corresponding positions in the device according to the invention, which are not shown in the figures for the sake of clarity.
  • the measuring devices record the positions of the adjustable devices, control the passage of the strand of material through the device according to the invention and pass the determined measurement and position data on to the control device for further processing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
EP93890069A 1992-04-03 1993-04-01 Dispositif pour l'alimentation alternative de matériau à une installation de travail Withdrawn EP0564445A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT699/92 1992-04-03
AT69992 1992-04-03

Publications (1)

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EP0564445A1 true EP0564445A1 (fr) 1993-10-06

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Application Number Title Priority Date Filing Date
EP93890069A Withdrawn EP0564445A1 (fr) 1992-04-03 1993-04-01 Dispositif pour l'alimentation alternative de matériau à une installation de travail

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1004132B (el) * 2002-02-28 2003-01-31 Μεθοδος και μηχανισμος τροφοδοσιας συρματων, μπετοβεργων, σωληνων, ή αλλου υλικου πρισματικης διατομης απο διαφορετικες γραμμες σε μια γραμμη κατεργασιας
EP1864726A1 (fr) * 2006-06-08 2007-12-12 M.E.P. Macchine Elettroniche Piegatrici S.p.A. Dispositif d'alimentation pour barres métalliques et procédé correspondant
WO2015149088A1 (fr) * 2014-04-01 2015-10-08 Evg Entwicklungs- U. Verwertungs-Gesellschaft M.B.H. Dispositif d'avance et de dressage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE552818C (de) * 1932-06-21 Adolf Pfeiffer Ohg Geraderichter fuer Rohrdraehte mit U-foermig gebogenen, ihre OEffnung einander zukehrenden Gehaeuseteilen
EP0143960A2 (fr) * 1983-10-27 1985-06-12 Mecapec S.A. Dispositif pour le redressage et la coupe à longueur de matériau en forme de fils
EP0221482A1 (fr) * 1985-10-28 1987-05-13 Bernhard Dr.-Ing. Jürgenhake Méthode et dispositif de transport de câbles
AT383756B (de) * 1985-10-28 1987-08-25 Evg Entwicklung Verwert Ges Vorrichtung zum alternativen zufuehren verschiedener draehte zu einer verarbeitungsmaschine
US4819533A (en) * 1987-08-11 1989-04-11 Artos Engineering Company Wire processing apparatus having pushbar and conveyor mechanisms

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE552818C (de) * 1932-06-21 Adolf Pfeiffer Ohg Geraderichter fuer Rohrdraehte mit U-foermig gebogenen, ihre OEffnung einander zukehrenden Gehaeuseteilen
EP0143960A2 (fr) * 1983-10-27 1985-06-12 Mecapec S.A. Dispositif pour le redressage et la coupe à longueur de matériau en forme de fils
EP0221482A1 (fr) * 1985-10-28 1987-05-13 Bernhard Dr.-Ing. Jürgenhake Méthode et dispositif de transport de câbles
AT383756B (de) * 1985-10-28 1987-08-25 Evg Entwicklung Verwert Ges Vorrichtung zum alternativen zufuehren verschiedener draehte zu einer verarbeitungsmaschine
US4819533A (en) * 1987-08-11 1989-04-11 Artos Engineering Company Wire processing apparatus having pushbar and conveyor mechanisms

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1004132B (el) * 2002-02-28 2003-01-31 Μεθοδος και μηχανισμος τροφοδοσιας συρματων, μπετοβεργων, σωληνων, ή αλλου υλικου πρισματικης διατομης απο διαφορετικες γραμμες σε μια γραμμη κατεργασιας
WO2003072279A1 (fr) * 2002-02-28 2003-09-04 Antonios Anagnostopoulos Procede et mecanisme de positionnement de fils, tiges filaires, tubes ou d'autre materiau des section transversale prismatique, de plusieurs lignes d'alimentation se terminant en une seule ligne de traitement
EP1864726A1 (fr) * 2006-06-08 2007-12-12 M.E.P. Macchine Elettroniche Piegatrici S.p.A. Dispositif d'alimentation pour barres métalliques et procédé correspondant
WO2015149088A1 (fr) * 2014-04-01 2015-10-08 Evg Entwicklungs- U. Verwertungs-Gesellschaft M.B.H. Dispositif d'avance et de dressage

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