EP0567903B1 - A method and arrangement for the manufacture of an electric multi-conductor cable - Google Patents

A method and arrangement for the manufacture of an electric multi-conductor cable Download PDF

Info

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
Authority
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
German (de)
English (en)
French (fr)
Other versions
EP0567903A2 (en
EP0567903A3 (sv
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/en
Publication of EP0567903A3 publication Critical patent/EP0567903A3/xx
Application granted granted Critical
Publication of EP0567903B1 publication Critical patent/EP0567903B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Communication Cables (AREA)
  • Manufacturing Of Electric Cables (AREA)
EP19930106415 1992-04-28 1993-04-21 A method and arrangement for the manufacture of an electric multi-conductor cable Expired - Lifetime EP0567903B1 (en)

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 (en) 1993-11-03
EP0567903A3 EP0567903A3 (sv) 1994-01-26
EP0567903B1 true EP0567903B1 (en) 1997-07-30

Family

ID=20386081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930106415 Expired - Lifetime EP0567903B1 (en) 1992-04-28 1993-04-21 A method and arrangement for the manufacture of an electric multi-conductor cable

Country Status (5)

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

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
FR87005E (fr) * 1963-04-12 1966-05-27 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
DK0567903T3 (da) 1997-12-29
FI931889A0 (fi) 1993-04-27
SE9201329L (sv) 1993-10-29
FI931889A (fi) 1993-10-29
SE9201329D0 (sv) 1992-04-28
DE69312557D1 (de) 1997-09-04
EP0567903A2 (en) 1993-11-03
EP0567903A3 (sv) 1994-01-26
DE69312557T2 (de) 1998-02-05
SE510571C2 (sv) 1999-06-07

Similar Documents

Publication Publication Date Title
US3847190A (en) Method and apparatus for twisting wires
US4081602A (en) Self-supporting cable
US12002600B1 (en) Electrical cables with non-metallic jackets and methods of fabricating the same
EP0117943B1 (en) Method of manufacturing a communication cable
US5122622A (en) Electrical cable having a bearing part and two concentrically arranged conductors
EP1047818B1 (en) Method of and apparatus for making twisted cable and the cable produced thereby
JPS6145323B2 (sv)
US4435238A (en) Manufacturing process for a low loss optical fiber cable
US4171609A (en) Method and apparatus for manufacturing cables and lines with SZ-twisted elements
US20020129969A1 (en) Electrical cable
CN110797141A (zh) 耐磨抗拖拽散热型多功能电动汽车充电用电缆及制作方法
EP0567903B1 (en) A method and arrangement for the manufacture of an electric multi-conductor cable
FI69529C (fi) Flerledarstarkstroemskabel och dess framstaellningsfoerfarande
GB2219063A (en) Method and apparatus for manufacture of an umbilical
US2147095A (en) Multiconductor cable
GB2078810A (en) Apparatus and method for the manufacture of electrical cables
EP0529607B1 (en) Method and arrangement in connection with reverse stranding
EP0190287A4 (en) APPARATUS AND METHOD FOR MANUFACTURING WRAPPED PRODUCTS WITH DOUBLE WRAPPING EQUIPMENT.
US3138915A (en) Method of forming a sectorconductor cable
US3247036A (en) Method of producing communications cable
US3722203A (en) Method for continuously manufacturing a communication cable
JP2000133071A (ja) 電気コード及びその製造方法
HU180818B (en) Method and apparatus for coating cable-like or rope-like industrial products with layer of wire and single- or multicore electrical cable produced thereof
GB1586661A (en) Electric cables and their manufacture
US2827510A (en) Electric cables for transformer leads and the like

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE DK FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE DK FR GB IT

17P Request for examination filed

Effective date: 19940428

17Q First examination report despatched

Effective date: 19950607

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITPR It: changes in ownership of a european patent

Owner name: TRA.NE EPO REG. 20;ALCATEL ALSTHOM COMPAGNIE D'ELE

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE DK FR GB IT

REF Corresponds to:

Ref document number: 69312557

Country of ref document: DE

Date of ref document: 19970904

ITF It: translation for a ep patent filed
RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: ALCATEL ALSTHOM COMPAGNIE GENERALE D'ELECTRICITE

ET Fr: translation filed
REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19980313

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980318

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 19980320

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991231

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000313

Year of fee payment: 8

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010421

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050421