EP0567903B1 - Verfahren und Anordnung zur Herstellung eines elektrisches Mehrleiterkabel - Google Patents

Verfahren und Anordnung zur Herstellung eines elektrisches Mehrleiterkabel Download PDF

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Publication number
EP0567903B1
EP0567903B1 EP19930106415 EP93106415A EP0567903B1 EP 0567903 B1 EP0567903 B1 EP 0567903B1 EP 19930106415 EP19930106415 EP 19930106415 EP 93106415 A EP93106415 A EP 93106415A EP 0567903 B1 EP0567903 B1 EP 0567903B1
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EP
European Patent Office
Prior art keywords
drum
reeling
cable
rotatable
axis
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
EP19930106415
Other languages
English (en)
French (fr)
Other versions
EP0567903A3 (de
EP0567903A2 (de
Inventor
Carl-Henric Bogren
Karl-Gustav Persson
Bo Thunwall
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel Iko Kabel AB
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 Alcatel Iko Kabel AB filed Critical Alcatel Iko Kabel AB
Publication of EP0567903A2 publication Critical patent/EP0567903A2/de
Publication of EP0567903A3 publication Critical patent/EP0567903A3/xx
Application granted granted Critical
Publication of EP0567903B1 publication Critical patent/EP0567903B1/de
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
    • H01B13/0228—Stranding-up by a twisting pay-off and take-up device
    • 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
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping

Definitions

  • the present invention relates to a method of manufacturing an electric cable comprising a cable body which consists of at least two mutually separate, insulated conductors which are embraced by a surrounding sheath and each of which is twisted spirally about its long axis in parallel with the other, and further comprises wires, filaments or bands which are twisted spirally parallel with one another on the outer surface of the sheath in the longitudinal direction.
  • the invention also relates to an arrangement for carrying out the method.
  • a stranding machine is known (FR-A-2 505 545) where the pay-off and the take-up rotates in synchronism in the same direction and at the same speed.
  • the cable core passing from the pay-off reel to the take-up reel is rotated, but it is not twisted. It must be assumed that the longitudinal elements of the cable core have been twisted or stranded together in a previous operation.
  • the purpose of spirally twisting the insulated conductors of an electric cable is primarily to make the cable flexible, so that it can be readily bent without being damaged, for instance when reeling the cable onto a cable drum or during installation work. If the conductors, etc., were not twisted spirally, there would be some risk that the individual cable conductors would become kinked or stretched due to the circumferential difference between the outer side and the inner side of the bent cable.
  • the electical conductors are normally twisted spirally about their individual long axis continously in a known manner in a separate operation in which each conductor is advanced individually by a respective drum to a twisting drum which rotates about its own axis.
  • the arrangement used may be one in which the individual drums intended for respective electric conductors are placed on a rotatable device which, in this case, advances the conductors to a stationary drum.
  • the conductors may be spirally wound in a special, separate operation by a so-called S-Z-spinning or laying process in which the conductors in one direction, e. g., to the left, over a predetermined length of time, whereafter the conductor is locked and thereafter twisted in the opposite direction, i. e. to the right, and so on.
  • This device thus twists the conductor alternately to the left and to the right.
  • the letters S and Z used to define this operation refer to a left-hand pitch and a right-hand pitch respectively.
  • Twisting of the individual electric cables in a separate operation in accordance with the aforegoing involves an extra expense in comparison with conductors that are twisted spirally in accordance with the so-called integrated S-Z-method, in which further working steps are carried out at the same time, for instance sheathing the cable.
  • the S-Z-method sometimes has certain limitations which renders the method unusable, e. g., in conjunction with flexible conductors.
  • the object of the present invention is primarily to provide a method and an arrangement which when spirally winding insulated conductors and the aforesaid sheathing wires or wires/bands of electric cables reduces the number of working operations with intermediate reeling of the conductors onto cable drums.
  • This object is achieved with the method defined in the introduction by spirally twisting the conductors and the wires/bands simultaneously in one single working step subsequent to sheathing the not yet spiralized insulated conductors, wherein the cable body is reeled-off from a first cable drum rotatable around its drum axis and mounted in a rotatable reeling-off device being rotatable at a first twisting speed around an axis perpendicular to said drum axis, and with wires/bands applied is reeled onto a second cable drum rotatable around its drum axis and mounted in a rotatable reeling-on device being rotatable at a second twisting speed around an axis perpendicular to said drum axis of said second drum.
  • An arrangement for carrying out the aforedescribed method is primarily characterized in that the arrangement includes a rotatable reeling-off device in which a first cable drum for reeling-off the cable body can be mounted with its drum axis in a rotational plane of the reeling-off device, a rotatable reeling-on device in which a second cable drum for reeling-on the cable can be mounted with its axis in a rotational plane of the reeling-on device, and a wire or band magazine with associated distribution plate which is located between the reeling-off device and the reeling-on device for advancing wire/band to be twisted spirally on the outside of the sheath wherein the reeling-off device and the reeling-on device are arranged to be rotated individually at controllable speeds.
  • the reeling-off device or the reeling-on device has the form of a so-called single twister or double twister.
  • the drawing illustrates the principle of a drum which is rotated in the plane of its axis by its respective reeling-off and reeling-on device.
  • the electric multi-conductor cable 10 illustrated in cross-section in Figure 1 includes three identical conductors 12, each of which is embraced by an insulating layer 14.
  • each conductor 12 has an area of about 0.5-16.0 mm 2 . Including its insulation, each conductor will thus have a diameter which is normally smaller than 7 mm.
  • the insulated conductors 12, 14 are each twisted about their individual longitudinal axis and surrounded by sheathing 16 which may comprise, for instance, a filling in the form of an extruded plastic or rubber layer.
  • the sheathing 16 may, in some cases, also be obtained by banding, e.g. by means of a plastic band.
  • wires or filaments 18 Located externally on the sheathing 16 are a plurality of wires or filaments 18 which, similar to the insulated conductors 12, 14, are twisted individually in the direction of their longitudinal axes. These wires or filaments 18 preferably form a reinforcement of galvanized steel wires although they may also form a copper screen. Copper bands or plastic bands may be used in some instances, instead of wires. Further structural elements, for instance further bands, wires or an outer sheath, can be applied to the outer surfaces of the wires 18, although this has not been shown in the drawing.
  • Figure 2 illustrates an arrangement for applying the aforesaid filler sheathing 16 to the insulated conductors 12, 14. Each conductor is wound onto a corresponding conductor spool 20. Since the multi-conductor cable shown in Figure 1 includes three insulated conductors 12, 14, the embodiment illustrated in Figure 2 comprises three similar conductor spools 20. The three insulated conductors 12, 14 are brought together in an extruder head 22 by means of the conductor spools 20. The filler sheathing 16 is applied in the extruder head 22 with the aid of an extruder 24. The sheathed cable body 12, 14, 16 is reeled-up onto a separate cable body drum 26 which has a relatively large core diameter.
  • the insulated conductors 12, 14 encased in the sheathing 16 have still not yet been twisted and the cable body 12, 14, 16 will not be able to withstand any powerful bending force. Consequently, it is necessary to dimension the core diameter of the drum 26 so that the inner side and outer side of the cable body will not be kinked and stretched when wound onto the drum.
  • Figure 3 illustrates an inventive arrangement which is intended to enable the insulated conductors 12, 14 and the aforesaid wires/bands 18 to be twisted spirally in one single working step subsequent to providing the insulated conductors 12, 14 with a filler sheathing 16, as described with reference to Figure 2.
  • a reeling-off device 27 and a reeling-on device 28 which can be rotated about their respective axes.
  • a cable body drum 30 is detachably mounted in the reeling-off device 27 such that the drum axis will lie in the rotational plane of the reeling-off device 27.
  • the cable body 12, 14, 16 is reeled onto a corresponding cable drum 32 detachably mounted in the reeling-on device 28, the drum axis of the cable drum 32 lying in the rotational plane of the reeling-on device 28.
  • the cable drum 32 is provided with a drive means which rotates around the drum in the direction in which the cable 10 is advanced. This drive means is of a known kind and is therefore not shown in the drawing.
  • the wires/bands 18 are applied from a stationary wire/band magazine 34 between the reeling-off device 27 and the reeling-on device 28.
  • Each wire/band 18 is taken from a corresponding wire/band spool 36 included in the magazine and is passed to the cable body 12, 14, 16 for application externally to the filler sheathing 16, through the intermediary of a distribution plate 38 which provides the desired spacing between said wires/bands 18.
  • the reeling-off device 27 and the reeling-on device 28 preferably rotate in the plane of the drum axis in mutually the same direction and at separately adjustable rotational speeds.
  • the reeling-off device 27 and the reeling-on device 28 may, of course, be formed as so-called single twisters or double twisters, in a known manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Communication Cables (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Manufacturing Of Electric Cables (AREA)

Claims (6)

  1. Verfahren zur Herstellung eines elektrischen Kabels (10), das einen Kabelkorpus (12, 14, 16) enthält, der mindestens zwei getrennte, isolierte Leiter (12, 14) umfaßt, die in einen Mantel (16) eingeschlossen werden und von denen jeder spiralförmig um seine Längsachse parallel zum anderen verdrillt wird, und der des weiteren Drähte und Bänder (18) umfaßt, die auf der Außenfläche des Mantels (16) angeordnet werden und von denen jeder/jedes ebenfalls spiralförmig um seine Längsachse verdrillt wird,
    dadurch gekennzeichnet, daß die Leiter (12, 14) und die Drähte/Bänder (18) im Anschluß an die Ümmantelung der noch nicht spiralförmig verdrillten, isolierten Leiter (12, 14) in einem einzigen Arbeitsschritt gleichzeitig spiralförmig verdrillt werden, wobei der Kabelkorpus (12, 14, 16) von einer ersten Kabeltrommel (30) abgewickelt wird, die um ihre Trommelachse drehbar und in einer drehbaren Abwickelvorrichtung (27) montiert ist, welche mit einer ersten Verdrillgeschwindigkeit um eine Achse, die senkrecht zur Trommelachse verläuft, gedreht werden kann, und mit Drähten/Bändern (18) versehen auf eine zweite Kabeltrommel (32) aufgewickelt wird, die um ihre Trommelachse drehbar und in einer drehbaren Aufwickelvorrichtung (28) montiert ist, welche mit einer zweiten Verdrillgeschwindigkeit um eine Achse, die senkrecht zur Trommelachse der zweiten Trommel verläuft, gedreht werden kann.
  2. Verfahren nach Anspruch 1,
    dadurch gekennzeichnet, daß die Drähte/Bänder (18) von einem feststehenden Draht- und Bandmagazin (34) auf den Kabelkorpus (12, 14, 16) aufgebracht werden, wobei der Kabelkorpus um seine eigene Längsachse verdrillt wird.
  3. Verfahren nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, daß sich die erste Kabeltrommel (30) in derselben Richtung wie die zweite Kabeltrommel (32) dreht.
  4. Verfahren nach Anspruch 3,
    dadurch gekennzeichnet, daß die erste Kabeltrommel mit einer höheren Geschwindigkeit als die zweite Kabeltrommel gedreht wird.
  5. Vorrichtung zur Durchführung des Verfahrens zur Herstellung eines elektrischen Kabels (10), das einen Kabelkorpus (12, 14, 16) umfaßt, der aus mindestens zwei getrennten, isolierten Leitern (12, 14) besteht, die in einen Mantel (16) eingeschlossen werden, wobei jeder der Leiter spiralförmig um seine Längsachse parallel zum anderen verdrillt wird, und der des weiteren Drähte und Bänder (18) umfaßt, die außen auf den Mantel (16) aufgebracht werden und von denen jeder/jedes ebenfalls spiralförmig um seine Längsachse, gemäß einem der Ansprüche 1 bis 4, verdrillt wird,
    dadurch gekennzeichnet, daß die Vorrichtung eine drehbare Abwickelvorrichtung (27) und eine drehbare Aufwickelvorrichtung (28) enthält, wobei der Kabelkorpus (12, 14, 16) von einer ersten Kabeltrommel (30) abgewickelt wird, die um ihre Trommelachse drehbar und in der drehbaren Abwickelvorrichtung (27) montiert ist, welche mit einer ersten Verdrillgeschwindigkeit um eine Achse, die senkrecht zur Trommelachse verläuft, gedreht werden kann, und mit Drähten/Bändern (18) versehen auf die zweite Kabeltrommel (32) aufgewickelt wird, die um ihre Trommelachse drehbar und in einer drehbaren Aufwickelvorrichtung (28) montiert ist, welche mit einer zweiten Verdrillgeschwindigkeit um eine Achse, die senkrecht zur Trommelachse der zweiten Trommel verläuft, gedreht werden kann, sowie ein Draht- und Bandmagazin (34) mit zugehörigem Verteilungsteller (38), der sich zwischen der Abwickelvorrichtung (27) und der Aufwickelvorrichtung (28) befindet.
  6. Vorrichtung nach Anspruch 5,
    dadurch gekennzeichnet, daß die Abwickelvorrichtung (27) und die Aufwickelvorrichtung (28) gegenseitig in derselben Richtung drehbar sind.
EP19930106415 1992-04-28 1993-04-21 Verfahren und Anordnung zur Herstellung eines elektrisches Mehrleiterkabel Expired - Lifetime EP0567903B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9201329 1992-04-28
SE9201329A SE510571C2 (sv) 1992-04-28 1992-04-28 Förfarande och anordning vid tillverkning av en elektrisk flerledarkabel

Publications (3)

Publication Number Publication Date
EP0567903A2 EP0567903A2 (de) 1993-11-03
EP0567903A3 EP0567903A3 (de) 1994-01-26
EP0567903B1 true EP0567903B1 (de) 1997-07-30

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ID=20386081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930106415 Expired - Lifetime EP0567903B1 (de) 1992-04-28 1993-04-21 Verfahren und Anordnung zur Herstellung eines elektrisches Mehrleiterkabel

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Country Link
EP (1) EP0567903B1 (de)
DE (1) DE69312557T2 (de)
DK (1) DK0567903T3 (de)
FI (1) FI931889A (de)
SE (1) SE510571C2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115072490A (zh) * 2022-06-21 2022-09-20 安徽齐宝电线电缆有限公司 一种电缆生产用可移动防磨损的绞丝并线设备

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1390922A (fr) * 1963-04-12 1965-03-05 Geoffroy Delore Procédé pour transmettre un mouvement de rotation de l'une à l'autre des extrémités d'un élément filiforme, et machines à câbler pour la mise en oeuvre de ce procédé
FR2505545A1 (fr) * 1981-05-07 1982-11-12 Cables De Lyon Geoffroy Delore Armeuse pour cables electriques

Also Published As

Publication number Publication date
SE9201329D0 (sv) 1992-04-28
EP0567903A3 (de) 1994-01-26
EP0567903A2 (de) 1993-11-03
DE69312557D1 (de) 1997-09-04
SE9201329L (sv) 1993-10-29
FI931889A0 (fi) 1993-04-27
DE69312557T2 (de) 1998-02-05
SE510571C2 (sv) 1999-06-07
DK0567903T3 (da) 1997-12-29
FI931889A (fi) 1993-10-29

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