EP1331650B1 - Méthode et appareil de réduction de tension dans des fils lors d'un processus de fabrication d'un câble - Google Patents

Méthode et appareil de réduction de tension dans des fils lors d'un processus de fabrication d'un câble Download PDF

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Publication number
EP1331650B1
EP1331650B1 EP03075183A EP03075183A EP1331650B1 EP 1331650 B1 EP1331650 B1 EP 1331650B1 EP 03075183 A EP03075183 A EP 03075183A EP 03075183 A EP03075183 A EP 03075183A EP 1331650 B1 EP1331650 B1 EP 1331650B1
Authority
EP
European Patent Office
Prior art keywords
wire
roller
speed
wires
winding
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
EP03075183A
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German (de)
English (en)
Other versions
EP1331650A2 (fr
EP1331650A3 (fr
EP1331650B8 (fr
Inventor
Vicenzo D'ottavi
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.)
Leoni Kabel GmbH
Original Assignee
Leoni Felisi SpA
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Publication date
Application filed by Leoni Felisi SpA filed Critical Leoni Felisi SpA
Publication of EP1331650A2 publication Critical patent/EP1331650A2/fr
Publication of EP1331650A3 publication Critical patent/EP1331650A3/fr
Publication of EP1331650B1 publication Critical patent/EP1331650B1/fr
Application granted granted Critical
Publication of EP1331650B8 publication Critical patent/EP1331650B8/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/02—Stranding-up
    • H01B13/0285—Pretreatment

Definitions

  • the present invention relates to a method and an associated apparatus for reducing the tension of wires during a process for production of a strand using said wires.
  • said strands are made from a wire or a plurality of wires wound onto a supply reel from which the wire(s) is/are unwound so as to be fed to the stranding machine which forms the bundles of wires, imparts one or more twists to them and winds the strand thus formed onto a take-up reel.
  • the wire is however subject to slackening and/or tensioning and, in order to compensate for this, the supply reel is equipped with an arm for adjusting the unwinding speed; said arm has a roller onto which the wire is wound and is connected to means for adjusting the speed of rotation of the said reel.
  • the wire is subject to a tension in the longitudinal direction which is permitted and regulated within certain limits, since it tends to equalize the behaviour of different wires wound onto the same reel and wires wound onto different reels.
  • the technical problem which is posed, therefore, is that of providing a method and an apparatus which allows a reduction in the tension produced on the wire during winding thereof onto a reel, for example of a stranding machine.
  • the present invention also relates to an apparatus for reducing the tension of wires during a process for forming a strand according to the characteristics of claim 8.
  • a conventional plant for forming a strand 2 from at least one wire 1 comprises essentially a reel 10 for supplying the wire(s) 1, a device 20 for guiding the wire(s) entering a stranding machine, schematically shown together with the associated winding reel 30.
  • the guiding device schematically shown is of the type able to impart a single twist to the wire, but, although not illustrated, the stranding machine may comprise means able to impart a double twist to the wires before they are wound onto the reel 30.
  • the supply reel 10 is connected to an arm 11 for adjusting its speed of rotation, which arm is in turn connected to the wires being unwound.
  • Fig. 2 shows the plant according to Fig. 1 equipped with an apparatus 100 for reducing the tension of the wires to which the wires 1 are subject during the process for forming and winding a strand 2, which apparatus is arranged in a position between the supply reel 10 and the point of entry into the stranding machine in the direction of feeding of the wires 1.
  • the apparatus according to the invention will also be called a tension-reducing apparatus.
  • the tension-reducing apparatus 100 is substantially formed by a first roller 111 which is motorized and by a second drive roller 112 which is idle, the wires 1 being made to pass between said rollers.
  • the first motorized roller 111 is rotated by means of an associated controlled motor 111a which imparts a speed of rotation of the roller such as to produce a peripheral speed which is slightly greater than the driving speed of the stranding machine.
  • the motor 111a is also connected to a speed control device 120, for example of the type called "encoder", onto which one of the wires 1 fed to the stranding machine is wound; said device is able to detect the speed of the roller and send corresponding signals to actuating means able to vary the speed of rotation of the motor 111a and therefore the corresponding roller 111.
  • a speed control device 120 for example of the type called "encoder”
  • the second idle roller 112 is mounted on an associated frame 112a which is movable translationwise parallel to the direction of feeding of the wires 1 so as to produce a relative position of the two rollers 111,112 such as to allow adjustment of the winding angle of the said wires 1 around the first motorized roller as illustrated in Figs. 4a to 4c where a winding angle of 90° is modified to a winding angle of about 180°.
  • the second roller 112 is in turn motorized by means of a motor 111b which is also regulated by the encoder signal and imparts to the second roller 112 a speed of rotation which is substantially the same as that of the first roller 111 and therefore slightly greater than the speed of feeding of the wire.
  • the tension-reducing effect is substantially determined by the winding angle on the first motorized (or active) roller - or by the sum of the winding angles on all the active rollers - it follows that, for the same reduction in tension on the wires 1, the motorization of the second roller 112 results in winding angles of the wires on the two active rollers which are smaller than those required in the case of an idle second roller, also allowing the mechanical design of the apparatus to be simplified.
  • a method for reducing the longitudinal tension of wires 1 forming the components of a strand 2 to be wound onto a reel 30 of a stranding machine is also defined, said method envisaging the following steps:
  • said pulling/pushing action is obtained by means of application of a sliding friction to the wire; said sliding friction being determined by the pulling/pushing action of a roller on which the wire is wound at a predefined winding angle depending on the characteristics of the wire and the strand to be formed.
  • Said winding angle is normally between 60° and 300° and preferably between 90° and 240°.
  • the roller which applies the pulling/pushing force to the wire is rotationally actuated so as to have a speed slightly greater than the speed of driving of the wire by the stranding machine.
  • the peripheral speed of the roller is greater than the speed of driving of the wire by an amount ranging between 2% and 10% of the latter.

Claims (16)

  1. Procédé permettant de réduire la tension dans des fils (1) pendant un processus de fabrication d'un câble (2) utilisant lesdits fils (1), comportant les étapes comprenant de :
    - dérouler au moins un fil (1) à partir d'une bobine d'alimentation (10) ;
    - fournir suivant une direction d'alimentation le fil déroulé (1) à une machine de formation de câble (30) qui tire le fil (1), l'enrouler sur une bobine de réception (31) à une vitesse d'enroulement prédéterminée ;
    caractérisé en ce que ledit, au moins un, fil (1) est soumis à une action consistant à le tirer/pousser dans le même sens que la direction suivant laquelle il est fourni, le long de la section du chemin de circulation entre la bobine d'alimentation et le point d'entrée dans la machine de formation de câble, par le fait que ladite action de tirer/pousser est appliquée par un appareil comprenant un premier rouleau (111) et un second rouleau (112), lesquels sont espacés l'un de l'autre le long d'une distance perpendiculaire à la direction d'alimentation, et dont l'un au moins(111) est motorisé (111a), lesdits premier (111) et second (112) rouleaux pouvant se déplacer l'un par rapport à l'autre dans une direction parallèle à la direction d'alimentation, permettant un réglage de l'angle d'enroulement du, au moins un, fil (1).
  2. Procédé selon la revendication 1, caractérisé en ce que ladite action de tirer/pousser est obtenue au moyen de l'application d'une friction de glissement au fil (1).
  3. Procédé selon la revendication 2, caractérisé en ce que ladite friction de glissement est déterminée par l'action de tirer/pousser d'une paire de rouleaux motorisés (111, 112) sur lesquels le fil (1) est enroulé suivant un angle d'enroulement prédéterminé.
  4. Procédé selon la revendication 3, caractérisé en ce que ledit angle d'enroulement se situe entre 60° et 300°.
  5. Procédé selon la revendication 4, caractérisé en ce que ledit angle d'enroulement se situe, de préférence, entre 90° et 240°.
  6. Procédé selon la revendication 1, caractérisé en ce que le rouleau (111) qui applique l'action de tirer/pousser sur le fil (1) est actionné à rotation de façon à avoir une vitesse plus grande que la vitesse d'entraînement du fil par la machine de formation de câble (30).
  7. Procédé selon la revendication 6, caractérisé en ce que la vitesse de rotation du rouleau motorisé (111, 111a) est supérieure à la vitesse d'entraînement du fil d'une quantité se situant entre 2% et 10% de cette dernière.
  8. Appareil permettant de réduire la tension sur des fils (1) pendant un processus de fabrication d'un câble (2) enroulé sur une bobine d'une machine de formation de câble (30) utilisant au moins un fil (1) fourni à partir d'une bobine d'alimentation (10, 11) suivant une direction d'alimentation, caractérisé en ce qu'il comporte des moyens (111, 112) capables de communiquer au dit au moins un fil (1) une action consistant à le tirer/pousser dans le même sens que la direction de fourniture dudit fil (1), lesdits moyens pour tirer/pousser (100) étant placés le long de la section du parcours de circulation entre la bobine d'alimentation (10, 11) et la bobine d'enroulement (30) avant la machine de formation de câble (30), et comprenant en tant que dits moyens (111, 112) au moins un premier rouleau (111) qui est motorisé et qui est capable de communiquer ladite action consistant à tirer/pousser et un second rouleau d'entraînement (112) qui est libre, les fils (1) étant enroulés autour desdits rouleaux, en ce que lesdits premier (111) et second (112) rouleaux sont parallèles l'un à l'autre et en ce que ledit second rouleau (112) peut se déplacer en translation par rapport au premier rouleau (111) afin de permettre un réglage de l'angle d'enroulement du fil (1) autour des rouleaux.
  9. Appareil selon la revendication 8, caractérisé en ce que lesdits moyens de pousser comportent au moins un premier rouleau motorisé (111) capable de communiquer ladite action de pousser/tirer et au moins un second cylindre motorisé (112), rouleaux autour desquels les fils (1) sont enroulés.
  10. Appareil selon la revendication 8, caractérisé en ce que ledit premier rouleau motorisé (111) tourne à une vitesse de rotation supérieure à la vitesse d'enroulement de la bobine (30) de la machine de formation de câble.
  11. Appareil selon la revendication 10, caractérisé en ce que la vitesse de rotation du rouleau motorisé (111) est supérieure à la vitesse d'entraînement du fil (1) d'une quantité se situant de préférence entre 2% et 10% de cette dernière.
  12. Appareil selon la revendication 8, caractérisé en ce que ledit premier rouleau motorisé (111) tourne à une vitesse de rotation supérieure à la vitesse d'enroulement de la machine de formation de câble et en ce que ledit second rouleau motorisé (112) tourne a une vitesse essentiellement identique à celle du premier rouleau.
  13. Appareil selon la revendication 8, caractérisé en ce qu'il comporte un dispositif (120) pour commander la vitesse de rotation du rouleau (des rouleaux) motorisé(s) sur lequel (lesquels) l'un des fils (1) fourni à la machine de formation de câble (30) est enroulé.
  14. Appareil selon la revendication 13, caractérisé en ce que ledit dispositif de commande (120) est capable de détecter la vitesse du rouleau et d'envoyer des signaux correspondants aux moyens d'actionnement capables de modifier la vitesse de rotation du moteur (111a, 111b) permettant d' actionner le (les) rouleau(x) motorisé(s).
  15. Appareil selon la revendication 8, caractérisé en ce que l'angle d'enroulement du fil (1) autour du (des) rouleau(x) motorisé(s) se situe entre 60° et 300°.
  16. Usine de fabrication de câbles (2) à partir de fils (1), dans laquelle au moins une machine de formation de câble pourvue d'une bobine d'enroulement (30) et d'au moins une bobine (10, 11) servant à fournir au moins un fil (1) sont envisagées, caractérisée en ce qu'elle comprend un appareil permettant de réduire la tension dudit au moins un fil (1) selon la revendication 8.
EP03075183A 2002-01-24 2003-01-20 Méthode et appareil de réduction de tension dans des fils lors d'un processus de fabrication d'un câble Expired - Lifetime EP1331650B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20020120 2002-01-24
IT2002MI000120A ITMI20020120A1 (it) 2002-01-24 2002-01-24 Metodo e relativa apparecchiatura per il detensionamento di fili durante un processo di produzione di corde

Publications (4)

Publication Number Publication Date
EP1331650A2 EP1331650A2 (fr) 2003-07-30
EP1331650A3 EP1331650A3 (fr) 2003-12-03
EP1331650B1 true EP1331650B1 (fr) 2010-07-28
EP1331650B8 EP1331650B8 (fr) 2010-09-01

Family

ID=11448973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03075183A Expired - Lifetime EP1331650B8 (fr) 2002-01-24 2003-01-20 Méthode et appareil de réduction de tension dans des fils lors d'un processus de fabrication d'un câble

Country Status (5)

Country Link
US (1) US20030141400A1 (fr)
EP (1) EP1331650B8 (fr)
AT (1) ATE475973T1 (fr)
DE (1) DE60333509D1 (fr)
IT (1) ITMI20020120A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105047319B (zh) * 2015-08-25 2017-03-08 安吉腾飞电子有限公司 一种电线绞合收卷设备
US10934142B2 (en) * 2018-02-27 2021-03-02 Hall Labs Llc Motor-driven fairlead for assisting spooling or unspooling from a winch

Family Cites Families (21)

* Cited by examiner, † Cited by third party
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US2127936A (en) * 1935-11-29 1938-08-23 Nat Standard Co Wire winding apparatus
US2985393A (en) * 1956-03-12 1961-05-23 Glanzstoff Ag Winding machine for the production of bobbins with predetermined thread tension overthe bobbin run
US3526368A (en) * 1968-06-10 1970-09-01 Deering Milliken Res Corp Method and apparatus for winding thread
GB1235439A (en) * 1969-06-18 1971-06-16 Standard Telephones Cables Ltd An arrangement for controlling the acceleration and tension of strip material being unwound from a spirally wound pad
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Also Published As

Publication number Publication date
DE60333509D1 (de) 2010-09-09
US20030141400A1 (en) 2003-07-31
EP1331650A2 (fr) 2003-07-30
EP1331650A3 (fr) 2003-12-03
ATE475973T1 (de) 2010-08-15
ITMI20020120A0 (it) 2002-01-24
EP1331650B8 (fr) 2010-09-01
ITMI20020120A1 (it) 2003-07-24

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