EP0409621A1 - Kabelverseilapparat - Google Patents

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Publication number
EP0409621A1
EP0409621A1 EP90307905A EP90307905A EP0409621A1 EP 0409621 A1 EP0409621 A1 EP 0409621A1 EP 90307905 A EP90307905 A EP 90307905A EP 90307905 A EP90307905 A EP 90307905A EP 0409621 A1 EP0409621 A1 EP 0409621A1
Authority
EP
European Patent Office
Prior art keywords
guide
cores
packs
shaft
pass
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Withdrawn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
EP90307905A
Other languages
English (en)
French (fr)
Inventor
Paul Brian Barlow
John Philip Vale
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.)
DELTA CROMPTON CABLES Ltd
Original Assignee
DELTA CROMPTON CABLES Ltd
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 DELTA CROMPTON CABLES Ltd filed Critical DELTA CROMPTON CABLES Ltd
Publication of EP0409621A1 publication Critical patent/EP0409621A1/de
Withdrawn legal-status Critical Current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
    • H01B13/0235—Stranding-up by a twisting device situated between a pay-off device and a take-up device
    • 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
    • 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
    • H01B13/0214—Stranding-up by a twisting pay-off 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
    • H01B13/02—Stranding-up
    • H01B13/0292—After-treatment
    • 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
    • D07B3/04—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 and are arranged in tandem along the axis of the machine, e.g. tubular or high-speed type stranding machine

Definitions

  • the present invention relates to apparatus for laying up or twisting insulated cores in the manufacture of electric cables.
  • One conventional type of electric cable comprises two or more separately insulated cores or conductors covered in a common outer protective sheath.
  • One stage in the manufacture of such cable comprises taking the requisite number of insulated cores wound on different drums, twisting them together, and winding them onto another drum.
  • the layered up or twisted cores from the latter drum are then passed through an extruder in which the outer sheath is extruded over the twisted cores to form the finished cable.
  • insulated core is drawn from a plurality of different drums or spools outside the machine.
  • the machine comprises a bow-shaped guide which is driven to rotate about an axis which passes through the ends of the bow-shaped guide.
  • the insulated cores pass from outside through an eye near one end of the bow, then together along the bow-shaped guide to the other end where they pass inwardly to within the bow where they are wound onto a drum.
  • the drum is driven separately from the bow to rotate about an axis coaxial with the rotation axis of the bow, and thus draw the cable into the machine.
  • the twisted insulated cores are fed through a traverse mechanism which moves the cores back and forth axially as the twisted cores are wound onto the drum so that the core is wound in layers.
  • a disadvantage of this arrangement is that it requires slip rings to take power in through the bow guide to drive the drum on the traverse mechanism. The machine has to be stopped when the drum is full and then the drum has to be transferred to the machine which performs the next stage of the cable manufacturing process.
  • apparatus for twisting cores of a cable comprising a guide, and means for rotating the guide about an axis, a support for mounting a plurality of drums or packs of insulated cores within the guide, the guide being shaped to pass around the insulated cores on the support as the guide is rotated, and the support being mounted so as not to rotate with the guide, and means located outside the guide for drawing core from the drums or packs outwardly in one direction and along the guide to leave the guide in the opposite direction.
  • the apparatus is placed next to a sheath-extruding apparatus and the twisted cores pass directly from the cable twisting apparatus to the extrusion apparatus.
  • the invention can provide an in-line arrangement for supplying twisted core to a sheath-extruding machine.
  • the insulated cores are wound in packs rather than on drums.
  • Drums have a central core and side flanges for retaining the insulated core.
  • a pack may have a core and be mounted on a pallet but is of much lighter construction.
  • the core is frusto-conical.
  • apparatus for twisting insulated core comprises a hollow rotor shaft 11 formed in two sections 11a and 11b and in bearings 12 on stanchions 13.
  • a bow-shaped guide 14 is rigidly secured by its ends to the rotor shaft 11 between the bearings 12, thus joining the two sections together.
  • a cradle 15 is supported from bearings 16 on the inner ends 17 of the shaft sections 11a and 11b.
  • a motor (not shown) is coupled to the outer end of the shaft section 11b for rotating the shaft and guide assembly about a horizontal axis X-X in the bearings 12.
  • the bearings 16 permit the cradle 15 to remain stationary whilst the rotor shaft and guide assembly rotate.
  • Means are provided for locating three packs 18, 19 and 20 of insulated core in the cradle.
  • the cores are covered in different coloured plastics insulation, for example brown, blue and green/yellow for conventional 3 core cable.
  • Each pack 18 may comprise a hollow frusto-conical former 42 around which the core 44 is wound, and a pallet base 46 for supporting the pack (see Figures 4 & 5).
  • the means for locating the packs may comprise three posts 21 projecting up from the bottom of the cradle which fit inside the packs of insulated core and support the cores whilst they are being unwound.
  • a guide 22 may be fitted to the top of each post 21 for guiding the cable as it comes off the pack.
  • Each guide 22 comprises an arm twisted about a vertical axis on the post 21 at its inner end and having an eye 23 at its outer end through which the insulated core passes.
  • the arm rotates as the core is drawn from the pack and prevents the core catching the top edge of the pack as it is drawn off, and thus preventing the core becoming tangled.
  • the core from the three packs pass through eyes 25 mounted on a bridge 26 extending over the cradle and through three separate holes in a die 27 also carried by the bridge 26.
  • the three insulated cores pass into the end of the hollow shaft 11b through the bearings 16 before passing out through an opening 28 in the side of the shaft. As the cores turn at the opening 28 they pass over a roller 29 which prevents abrasion.
  • the cores then pass along the guide 14 in the opposite direction to which they left the packs 18, 19 and 20.
  • the cores pass through eyes 30 at intervals along the guide, with roller bearings 31 to prevent abrasion.
  • the cores pass through an opening 24 into the hollow shaft 11a.
  • a roller 32 prevents abrasion as the cores turn to pass along the shaft.
  • the cores emerge from the open end of the shaft section 11a and are then passed to the sheath extrusion machine (not shown).
  • Drive pulleys (not shown) outside the machine apply traction to the cable to pull the cable through the machine.
  • the bow-shaped guide 14 is rotated about the axis X-X by a motor (not shown) coupled to the end of the shaft 11b as the cores are drawn from the packs through the guide 14.
  • the rotation of the bow twists the cores twice on each revolution, firstly as the cores pass from the stationary die 27 on the cradle bridge to the rotating shaft and guide assembly, and secondly when the cores pass from the rotating shaft and guide assembly to the next stage of the cable making process.
  • the twists are applied in the same sense to the cores resulting in two twists for each revolution of the rotor shaft and guide assembly.
  • the twisted cores from the machine could be wound onto a drum for storage before subsequent use
  • the feature of drawing the twisted cable through the machine from outside the machine means that it is possible to incorporate the core twisting machine 59 into an in-line arrangement with a sheath extruding machine 60 as shown in Figure 3.
  • the drives for advancing the cores through the laying-up machine and the extruding machine may be linked so that the pitch of the twist of the insulated cores remains constant in the sheathed product.
  • a conventional arrangement of weighted pulley for providing an accumulation of twisted cable between the twisting machine and the sheath extruding machine may be used to provide a reserve of twisted cable to for the extruding machine work on whilst the twisting machine is being reloaded, or alternatively the sheathing machine may be immediately adjacent the laying up machine as shown in Figure 3.
  • the extruded sheathed cable may be passed from the sheath extruding machine through an accumulator 61 to a pack-winding machine 62.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
EP90307905A 1989-07-19 1990-07-19 Kabelverseilapparat Withdrawn EP0409621A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8916471 1989-07-19
GB8916471A GB2234267B (en) 1989-07-19 1989-07-19 Apparatus for manufacturing electric cable

Publications (1)

Publication Number Publication Date
EP0409621A1 true EP0409621A1 (de) 1991-01-23

Family

ID=10660249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90307905A Withdrawn EP0409621A1 (de) 1989-07-19 1990-07-19 Kabelverseilapparat

Country Status (2)

Country Link
EP (1) EP0409621A1 (de)
GB (1) GB2234267B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2732503A1 (fr) * 1995-03-31 1996-10-04 Filotex Sa Procede d'assemblage et de rubanage de conducteurs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048305B (de) * 1957-12-31 1959-01-08 Siemens-Schuckertwerke Aktiengesellschaft, Berlin Und Erlangen Wickeltrommel, deren Bremswirkung durch das Trommelgewicht geregelt wird, insbesondere für strangförmiges Wickelgut für elektrische Kabel
GB1303106A (de) * 1970-01-23 1973-01-17
FR2202343A1 (de) * 1972-10-04 1974-05-03 Cortinovis Spa
JPS5158542A (de) * 1974-11-14 1976-05-21 Teijin Seiki Co Ltd
DE3006701A1 (de) * 1980-02-20 1981-08-27 Siemens AG, 1000 Berlin und 8000 München Verseilmaschine mit rueckdrehung fuer elektrische oder optische kabel und leitungen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB589955A (en) * 1944-04-11 1947-07-03 Carbide & Carbon Chem Corp Improvements in sealed electric cable
GB634261A (en) * 1947-11-21 1950-03-15 Standard Telephones Cables Ltd Improvements in or relating to machines for twisting electric conductors for use in electric cables
BE619203A (nl) * 1962-06-20 1962-10-15 Bekaert Pvba Leon Staaldraadkabel
GB1320770A (en) * 1970-12-23 1973-06-20 Martinez M Bunching and twisting apparatus
US3771304A (en) * 1971-03-16 1973-11-13 Sumitomo Electric Industries Twisting motion and process for producing wire cords
FR2353936A1 (fr) * 1976-06-04 1977-12-30 Felten & Guilleaume Carlswerk Procede et installation pour fabriquer des cables ou conducteurs pour courants forts comportant plusieurs brins a cablage alterne
LU79218A1 (fr) * 1978-03-13 1979-10-29 Bekaert Sa Nv Cordage metallique de renforcement et son mode de fabrication
IT1110954B (it) * 1979-02-06 1986-01-13 Pirelli Metodo e macchinario per produrre cordicelle metalliche a strati
US4302924A (en) * 1979-11-20 1981-12-01 International Wire Products Company, A Division Of Carlisle Corporation Wire stranding apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048305B (de) * 1957-12-31 1959-01-08 Siemens-Schuckertwerke Aktiengesellschaft, Berlin Und Erlangen Wickeltrommel, deren Bremswirkung durch das Trommelgewicht geregelt wird, insbesondere für strangförmiges Wickelgut für elektrische Kabel
GB1303106A (de) * 1970-01-23 1973-01-17
FR2202343A1 (de) * 1972-10-04 1974-05-03 Cortinovis Spa
JPS5158542A (de) * 1974-11-14 1976-05-21 Teijin Seiki Co Ltd
DE3006701A1 (de) * 1980-02-20 1981-08-27 Siemens AG, 1000 Berlin und 8000 München Verseilmaschine mit rueckdrehung fuer elektrische oder optische kabel und leitungen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2732503A1 (fr) * 1995-03-31 1996-10-04 Filotex Sa Procede d'assemblage et de rubanage de conducteurs

Also Published As

Publication number Publication date
GB2234267B (en) 1994-02-02
GB8916471D0 (en) 1989-09-06
GB2234267A (en) 1991-01-30

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