EP0396068B1 - Verfahren und Vorrichtung zur Herstellung eines Drahtbündels oder eines Seiles - Google Patents

Verfahren und Vorrichtung zur Herstellung eines Drahtbündels oder eines Seiles Download PDF

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Publication number
EP0396068B1
EP0396068B1 EP90108171A EP90108171A EP0396068B1 EP 0396068 B1 EP0396068 B1 EP 0396068B1 EP 90108171 A EP90108171 A EP 90108171A EP 90108171 A EP90108171 A EP 90108171A EP 0396068 B1 EP0396068 B1 EP 0396068B1
Authority
EP
European Patent Office
Prior art keywords
strand
torsion
cable
signal
strands
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
EP90108171A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0396068A2 (de
EP0396068A3 (en
Inventor
Bernd Schulligen
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.)
Drahtcord Saar GmbH and Co KG
Original Assignee
Drahtcord Saar GmbH and Co KG
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Publication date
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Application filed by Drahtcord Saar GmbH and Co KG filed Critical Drahtcord Saar GmbH and Co KG
Publication of EP0396068A2 publication Critical patent/EP0396068A2/de
Publication of EP0396068A3 publication Critical patent/EP0396068A3/de
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Publication of EP0396068B1 publication Critical patent/EP0396068B1/de
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    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02—Machine details; Auxiliary devices
    • D07B7/022—Measuring or adjusting the lay or torque in the rope
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
    • D07B3/02—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position
    • D07B3/022—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position with provision for imparting two or more twists to the filaments for each revolution of the guide member

Definitions

  • the invention relates to a method for producing a bundle from a plurality of metallic individual wires (strand) or a rope from a plurality of strands, in which the wires or strands are pulled off in a conventional manner by means of a pull-out device via a rotor from braked coils of a coil carrier and with an adjustable lay length are laid around one another and / or twisted around one another, in which the stranded wires or stranded strands are then further twisted in their twisting direction in an overturning device, so that the residual torsion of the strand or the rope fluctuates by an adjustable constant value, and at the end the finished strand or rope is wound up on a spool or is processed immediately.
  • the invention further relates to a device for producing a bundle of several metallic individual wires (strand) or a rope made of several strands, with a coil carrier with braked coils for receiving individual wires or strands with a rotor for folding and / or twisting the wires or Stranded wire, with an overturning device, with at least one pull-out mechanism and with a winding or transfer device (see, for example, JP-A-56-9489).
  • a strand is understood to mean a bundle of at least two, but usually several, for example four or five individual wires, which are laid around and / or twisted around one another.
  • a rope is understood to mean a bundle of several strands or of more than eight individual wires or of a combination of strands and individual wires, which in turn are laid around and / or twisted around one another.
  • Under one Lay length is to be understood as the distance between two points of a wire or a strand with the same spatial position after a complete twist by 360 o .
  • the unit of measurement 1 torsion is to be defined in the context of this application in such a way that a 6 m long piece of strand unwound from a spool after the end has been released is rotated 360 o in the direction of rotation (+ 1 torsion) or in the opposite direction (- 1st Torsion).
  • the individual wires e.g. high-strength, surface-treated steel wires can be drawn off from coils by means of a pull-out mechanism and twisted around one another with an adjustable lay length by means of a rotor to form a strand. Because of the spring properties of the wires, a torque that opposes this torsion occurs.
  • a certain torsion value e.g. To obtain the value zero, the strand is twisted even further in its direction of rotation by means of an overturning device, as a rule beyond the elastic deformation range into the plastic one.
  • the residual torsions can only be measured when the machine is switched off and the strand is cut open. If the measured value is within the permissible limits, the machine is put into operation again; if the value is inadmissible, the speed of the overturning device is usually increased or decreased via a mechanical adjustment gear in order to obtain the desired value. These measurements are repeated after passing through predetermined strand lengths.
  • the invention is therefore based on the object of specifying a method for producing a strand or a rope of substantially improved quality, in which, in particular, the problems indicated no longer occur due to different residual torsions.
  • This object is achieved in that the strand or the rope behind the overturning device or the puller is given a low constant tension that in the range of low constant tension during the entire manufacturing process Torsion value of the strand or the rope is measured continuously and that if the torsion measurement deviates from the set torsion value, a control signal is generated by means of which the speed of the over-twisting device is changed in such a way that the strand or the rope again assumes the set torsion value.
  • a device for producing a strand or a rope is characterized in that a tension generator stage for maintaining a low constant tension is located between the pull-out unit and the winding or transfer device, and in the area of the low constant tension a torsion measuring device for the continuous detection of the torsion value is present, the measurement signal of which can be fed to a control device, the output signal of which changes the speed of the overturning device.
  • the main idea of the invention is to continuously measure the torsion value of the strand or the rope during the entire production process and to correct it immediately in the event of deviations from the set value.
  • the measurement is carried out in a measuring loop with a torsion measuring roller, which changes its angular position in the event of deviations from the target value and thereby generates a correction signal.
  • the control signal of the torsion measuring roller is used to change the speed of the overturning device via an electrical circuit in such a way that the strand or the rope again assumes the set torsion value (setpoint).
  • the invention offers the advantage that for the first time it has been possible to produce a strand of great length which, regardless of the length-changing properties of the individual wires, maintains a predetermined residual torsion value over its entire length. This avoids rejects both in the strand material and in the cord material subsequently produced therefrom.
  • the advantage of the stranding or stranding machine is that the elimination of a mechanical winding coupling and a mechanical adjusting mechanism of the overturning device eliminates approximately 95% of the wear parts of the machine, which results in a considerable reduction in indirect personnel.
  • a further advantage is a reduction in testing costs and rework.
  • the bunching machine essentially consists of the main assemblies bobbin 1, rotor 2, overturning device 3, pull-out mechanism 4, take-up device 5 and the assemblies according to the invention tension generator 6, torsion measuring device 7, control device 8 and conventional drive units.
  • the coil carrier 1 there are two coils 1.2 on each of two fixed axes 1.1, on which wires 1.3, for example brass-plated steel wires, are wound, from which a strand is to be produced.
  • wires 1.3 for example brass-plated steel wires
  • the individual wires 1.3 can have a diameter of approximately 0.25 mm.
  • brakes 1.4 To slow down the Coils 1.2 serve brakes 1.4.
  • the wires 1.3 are guided when pulling over collecting rollers 1.5 and rollers 1.6 forming a fixed point and an output roller 1.7.
  • the rotor 2 which is driven by the motor 9 via belts 10 and an intermediate shaft 11, consists essentially of two rotor disks 2.1, which are wrapped several times by the individual wires 1.3.
  • Two deflection rollers 2.2 are used to guide the individual wires 1.3 that have already been brought together to form a strand 12.
  • the heald 12 is fed to the overturning device 3, which essentially consists of two rollers 3.2, arranged side by side in a bracket 3.1, around which the heald 12 is guided, and a drive unit 3.3.
  • the drive unit 3.3 can be designed in such a way that the overturning device 3 is driven by the main motor 9 via drive belt 10, the intermediate shaft 11 and a gear 4.3 and that an additional motor in the unit 3.3 is only used to change the speed.
  • a separate drive motor can also be provided.
  • synchronization means should be provided for a synchronous start of the roto 2 and the overturning device 3.
  • a pull-out mechanism 4 Downstream of the overturning device 3 is a pull-out mechanism 4, which in the present example essentially consists of two pull-out rollers 4.1 and 4.2, of which the pull-out roller 4.2 is motor-driven, specifically via a reduction gear 4.3, which is connected to the intermediate shaft 11.
  • the strand 12 is generally wrapped around the rollers 4.1 and 4.2 at least ten times.
  • two pull-out units are also used, of which the second is then usually located between the rotor 2 and the overturning device 3.
  • the finished strand 12 is wound in the winding device 5 onto a driven spool 5.1.
  • a laying device 5.2 ensures the correct winding of the strand 12 in the usual way. If required, the finished strand 12 can be fed to an immediate further processing instead of to the winding device 5 via a deflection roller (not shown). If necessary, the bunching machine can also have a customary post-forming device.
  • the strand 12 is fed to the tension generator stage 6 via a deflection roller 13, which in the present example consists of a dancer device with two rollers 6.1 and 6.2.
  • the roller 6.2 is arranged in a fixed position, while the dancer roller 6.1 is located on a dancer arm 6.3 which can be pivoted about an axis A and which carries a weight 6.4 on its rear side via a linkage.
  • the weight 6.4 determines the position of the dancer arm 6.3.
  • the strand 12 is guided around the rollers 6.1 and 6.2 about four times.
  • the strand 12 is fed to a first deflecting roller 7.1 of the torsion measuring device 7 and runs from there, forming a measuring loop 7.2 around a torsion measuring roller 7.3, back to a second deflecting roller 7.4 and finally to the winding device 5.
  • the upper edges of the rollers 7.1 and 7.4 are approximately at the level of the axis of the torsion roller 7.3.
  • the torsion measuring roller 7.3 the diameter of which can be between 8 and 20 cm, is mounted in a roller arm 7.5, which is easily rotatable about its longitudinal axis.
  • An electronic signal transmitter 7.6 is connected to the torsion measuring roller 7.3 and generates an electrical signal depending on the angle of rotation of the roller arm 7.5 and thus the torsion measuring roller 7.3.
  • This signal is fed in the control device 8 - possibly with the interposition of an integrator stage 8.1 - to a comparison stage 8.2.
  • comparison stage 8.2 the signal is compared with a signal which can be set on controller R2 and which corresponds to the desired value of the residual torsion.
  • an output signal is generated in comparison stage 8.2 and sent to the drive unit 3.3 of the overturning device, which changes the speed of the overturning device 3 in such a way that the strand 12 again assumes the value set on the controller R2.
  • the operation of the stranding machine and the method for producing a strand are to be explained in more detail below.
  • the beating machine sets the rotor 2, the puller 4, the overturning device 3 and the winding device 5 in motion, whereby a synchronous start is ensured.
  • the strand 12 moves at a speed of approximately 100 to 200 m / min, and the striking discs 2.1 of the rotor 2 rotate at a speed of approximately 5 to 6000 rpm.
  • the four individual wires 1.3 are withdrawn from the braked coils 1.2 and rotated around one another with the aid of the striking discs 2.1, where they receive their first lay on the right deflection pulley 2.2 and their second lay on the left deflection pulley 2.2, so that here the final lay length of the strand 12 is reached.
  • the amount of the lay length is determined by the pull-off speed of the pull-out unit 4 and the speed of the striking discs 2.1.
  • High-strength steel wires which are used in the manufacture of strands for a tire cord as individual wires 1.3, react when twisted due to their spring properties to the twist with a reverse torque against the twisting direction. This return torque of the strand 12 is canceled or set to a desired final value (residual torsion) in that the strand 12 is further twisted together in the overturning device 3, specifically via the elastic deformation region into the plastic one.
  • the tension generator stage 6 After passing through the pulling unit 4, the strand 12 is guided via the tension generator stage 6 and the torsion measuring device 7 to the winding device 5 and is wound there on a spool 5.1. While high pulling forces act on the strand 12 up to the pull-out mechanism 4, the tension generator stage 6 ensures that the strand 12 is guided over the measuring loop of the torsion measuring device 7 with an extremely low constant tension. Only this constant low Tension allows a sensitive torsion measurement on the strand 12. The amount of tension can be adjusted with the regulator R1.
  • the dancer arm 6.3 changes its position by slightly pivoting about the axis A, as a result of which a correction signal is generated in the signal generator 6.5, which changes the winding speed of the winding spool 5.1 via the control device 8, so that the exact tension value is immediately restored.
  • the strand 12 is continuously guided as a measuring loop 7.2, in which the torsion measuring roller 7.3 hangs.
  • a value of approximately 1 m has proven to be favorable for the length of the measuring loop. It is important that the ends of the measuring loop 7.2 are guided as close as possible to one another.
  • the torsion measuring device 7 functions as follows. First, the desired residual torsion value of the strand 12 is set with the regulator R2, which can be zero, but can also be a specific value of a plus torsion or minus torsion.
  • the electrical circuit of the control device 8 supplies a signal to the drive unit 3.3, which has the effect that the overturning device 3 has exactly such a speed that it gives the strand 12 the desired residual torsion value. As long as the strand 12 maintains this value, the position of the torsion measuring roller 7.3 does not change.
  • the residual torsion of the strand 12 in the measuring loop 7.2 deviates from the predetermined value, this results in the measuring roller 7.3 and thus the roller arm 7.5 being rotated, as a result of which a measuring signal is generated in the electronic signal transmitter 7.6 Comparator stage 8.2 is fed into the control device 8 and there is a changed one Output signal generated. With this output signal, the speed of the overturning device 3 is changed in such a way that the desired residual torsion value, which is set on the regulator R2, is immediately obtained again on the strand 12. As soon as the disturbance stops due to the changed surface of the individual wires, a control mechanism starts in the opposite direction.
  • the detection of torsional fluctuations with the torsion measuring roller 7.3 is so sensitive that it may be expedient to first feed the signals generated in the electronic transmitter 7.6 to an integrator stage 8.1 and to initiate the readjustment mechanism after a certain threshold has been reached.
  • the invention can also be carried out with a single impact machine instead of the double impact machine described. Above all, instead of the strands described, the invention can also be used to produce ropes with a residual torsion that is constant over their length. In this case, there are not individual wires but strands in the coils 1.2 of the coil carrier.

Landscapes

  • Ropes Or Cables (AREA)
  • Decoration Of Textiles (AREA)
  • Wire Processing (AREA)
EP90108171A 1989-04-29 1990-04-28 Verfahren und Vorrichtung zur Herstellung eines Drahtbündels oder eines Seiles Expired - Lifetime EP0396068B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3914330 1989-04-29
DE3914330A DE3914330A1 (de) 1989-04-29 1989-04-29 Verfahren und vorrichtung zur herstellung eines drahtbuendels oder eines seils

Publications (3)

Publication Number Publication Date
EP0396068A2 EP0396068A2 (de) 1990-11-07
EP0396068A3 EP0396068A3 (en) 1990-12-19
EP0396068B1 true EP0396068B1 (de) 1994-07-06

Family

ID=6379833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90108171A Expired - Lifetime EP0396068B1 (de) 1989-04-29 1990-04-28 Verfahren und Vorrichtung zur Herstellung eines Drahtbündels oder eines Seiles

Country Status (7)

Country Link
EP (1) EP0396068B1 (nl)
JP (1) JP2921583B2 (nl)
AT (1) ATE108232T1 (nl)
BR (1) BR9001987A (nl)
DD (1) DD300116A5 (nl)
DE (2) DE3914330A1 (nl)
TR (1) TR25698A (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6718624B1 (en) 1999-04-08 2004-04-13 Schleuniger Holding Ag Method for controlling a cable treating device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535595C2 (de) * 1995-09-25 2000-12-07 Drahtcord Saar Gmbh & Co Kg Verfahren zur Herstellung eines spiralförmigen Drahtfilament, insbesondere zur Verstärkung von Gummi- oder Kunststoffartikeln, Vorrichtung zur Durchführung des Verfahrens und nach dem Verfahren herstelltes Drahtfilament
CN101736623B (zh) * 2009-11-28 2011-12-21 石国平 钢帘线残余扭转应力检测消除装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771304A (en) * 1971-03-16 1973-11-13 Sumitomo Electric Industries Twisting motion and process for producing wire cords
JPS569489A (en) * 1979-06-29 1981-01-30 Tokyo Rope Mfg Co Detecting and correcting of residual rotation in steel cord

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB724101A (en) * 1951-06-09 1955-02-16 Jean Alfred Louis Rozieres Improvements relating to the manufacture of cables, ropes and the like
BE566163A (nl) * 1957-03-30 1900-01-01
FR1260756A (fr) * 1960-03-31 1961-05-12 Courtaulds Ltd Procédé et appareil pour mesurer la nervosité des câblés métalliques pendant leur fabrication
US3593508A (en) * 1968-05-23 1971-07-20 Gen Cable Corp Apparatus for imparting a predetermined value of twist to a material
DD134881A1 (de) * 1978-02-14 1979-03-28 Werner Fuehrer Mit der verseileinrichtung gekoppelte kontinuierlich arbeitende reckeinrichtung
DE3139415A1 (de) * 1981-10-03 1983-04-21 W.H. Küster GmbH & Co KG, 6332 Ehringshausen Verfahren zur konstanthaltung der draht- bzw. litzenspannung in verseilmaschinen und vorrichtung zur durchfuehrung des verfahrens
JPS591791A (ja) * 1982-06-22 1984-01-07 住友電気工業株式会社 撚線機・集合機の回転数制御方法
JPS61124692A (ja) * 1984-11-20 1986-06-12 神鋼鋼線工業株式会社 ワイヤロ−プの撚り調整方法およびその装置
DD246579A1 (de) * 1986-01-27 1987-06-10 Thaelmann Schwermaschbau Veb Umwickeleinrichtung fuer stahldrahtlitzen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771304A (en) * 1971-03-16 1973-11-13 Sumitomo Electric Industries Twisting motion and process for producing wire cords
JPS569489A (en) * 1979-06-29 1981-01-30 Tokyo Rope Mfg Co Detecting and correcting of residual rotation in steel cord

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6718624B1 (en) 1999-04-08 2004-04-13 Schleuniger Holding Ag Method for controlling a cable treating device

Also Published As

Publication number Publication date
DE3914330A1 (de) 1990-10-31
BR9001987A (pt) 1991-08-13
JPH0369685A (ja) 1991-03-26
DE59006338D1 (de) 1994-08-11
TR25698A (tr) 1993-09-01
DE3914330C2 (nl) 1991-07-18
JP2921583B2 (ja) 1999-07-19
ATE108232T1 (de) 1994-07-15
EP0396068A2 (de) 1990-11-07
EP0396068A3 (en) 1990-12-19
DD300116A5 (de) 1992-05-21

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