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EP0749131A1 - Method to manufacture a cable-twist - Google Patents

Method to manufacture a cable-twist Download PDF

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Publication number
EP0749131A1
EP0749131A1 EP96108841A EP96108841A EP0749131A1 EP 0749131 A1 EP0749131 A1 EP 0749131A1 EP 96108841 A EP96108841 A EP 96108841A EP 96108841 A EP96108841 A EP 96108841A EP 0749131 A1 EP0749131 A1 EP 0749131A1
Authority
EP
European Patent Office
Prior art keywords
wires
guide
stranding
cross
wire
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.)
Granted
Application number
EP96108841A
Other languages
German (de)
French (fr)
Other versions
EP0749131B1 (en
Inventor
Gerhard Dipl.-Ing. Seibert
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.)
Rosendahl Maschinen GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT96108841T priority Critical patent/ATE289114T1/en
Publication of EP0749131A1 publication Critical patent/EP0749131A1/en
Application granted granted Critical
Publication of EP0749131B1 publication Critical patent/EP0749131B1/en
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
    • H01B13/0235—Stranding-up by a twisting device situated between a pay-off device and a take-up device
    • H01B13/0264—Stranding-up by a twisting device situated between a pay-off device and a take-up device being rollers, pulleys, drums or belts

Definitions

  • the invention relates to a method for producing a cable stranding (4) from single wires - in particular non-round cross-section wires, e.g. for high-voltage cables consisting of three or four sector-shaped conductors (1) made of copper or aluminum with large cross-sections with plastic insulation (2) - with changing direction of lay.
  • EP-A1-0582802 describes a stranding machine with alternating lay direction for wires of round cross-section. It consists of a fixed inlet guide in a swirl storage and a back and forth rotating laying head with guides for each wire. If the wires are now to be twisted around their axis, then they must be held in the laying head so that they cannot rotate. It makes sense to use guides and guide rollers that are form-fitting to the wire cross-section. However, depending on the strength and type (Al, Cu - solid solid or stranded) of the conductor used, this is practically impossible without damaging the plastic conductor insulation. Especially since the shape of the circular sector-shaped conductor cross sections with 90 ° or 120 ° sector angle offers only little "attack" for a profile guide due to the relatively large roundings at the corners.
  • the profile rollers (5, 6) which apply the torque are arranged on the laying head (3) in an arc such that a crank arm is formed for twisting the wires (1 ... conductor, 2 ... insulation) , with the radius R, so that the respective circumferential force P u becomes so small that the wire insulation made of plastic is not damaged.
  • FIG. 1 and 2 show an example of such a laying head (3), the “stretched swirl store” lying in front of it in the wire running direction (7) not being shown.
  • the laying head (3) is rotatably mounted in the bearing points (10, 11), it is driven by the motor (12) and the belt drive (13) in an oscillating manner.
  • the individual wires (1) with their insulation (2) come from the "twist accumulator" in the direction of travel (7).
  • each wire (1) has a lever arm the radius R.
  • the required circumferential force P u is thereby much smaller, it then has the entire cross-sectional height as the line of action, so that the specific surface pressure becomes small enough not to damage the insulation (2).
  • the stranding is formed in the stranding nipple (9) and runs in the direction 8 in a "twist lock" of known type.
  • the arcuate guide made of several smaller roles is shown as an example, which reduces the size of the stranding head.
  • a single roll of possibly larger diameter could also be carried out in each case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wire Processing (AREA)
  • Ropes Or Cables (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Insulated Conductors (AREA)
  • Communication Cables (AREA)

Abstract

Wires (1) of circular or esp. non-circular cross-section are twisted together without back-twisting to form a cable with alternating twist. The twisting head (3) guides each wire in an arc shape over guide rollers (5). The roller profile is adapted to suit the cross-section of the wire (1).

Description

Die Erfindung betrifft ein Verfahren zur Herstellung einer Kabelverseilung (4) aus Einzeladern - insbesondere Adern nichtrunden Querschnitts wie z.B. für Hochspannungskabel aus drei oder vier sektorförmigen Leitern (1) aus Kupfer oder Aluminium mit großen Querschnitten mit einer Kunststoffisolierung (2) - mit wechselnder Schlagrichtung.The invention relates to a method for producing a cable stranding (4) from single wires - in particular non-round cross-section wires, e.g. for high-voltage cables consisting of three or four sector-shaped conductors (1) made of copper or aluminum with large cross-sections with plastic insulation (2) - with changing direction of lay.

Vorrichtungen zum Verseilen mit wechselnder Schlagrichtung sind für runde Adern bekannt. Sektorförmige Drähte müssen jedoch, anders als runde Drähte, wegen ihrer Passform im Seil zusätzlich einmal pro Schlag (Umdrehung) um ihre Achse verdrillt werden (Verseilen ohne Rückdrehung). Das bedeutet, daß hohe Drehmomente auf die einzelnen Drähte/Adern (bezogen auf deren Längsachsen) aufgebracht werden müssen.Devices for stranding with alternating lay direction are known for round wires. However, unlike round wires, sector-shaped wires have to be twisted around their axis once per turn (rotation) due to their fit in the rope (stranding without reverse twist). This means that high torques must be applied to the individual wires / wires (based on their longitudinal axes).

Die EP-A1-0582802 beschreibt eine Verseilmaschine mit wechselnder Schlagrichtung für Drähte runden Querschnitts. Sie besteht aus einer feststehenden Einlaufführung in einen Drallpeicher und einem hin- und herrotierenden Legekopf mit Führungen für jeden Draht. Wenn nun die Drähte um ihre Achse verdrillt werden sollen, dann müssen sie im Legekopf drehfest gehalten werden. Es ist naheliegend, dafür formschlüssig zum Drahtquerschnitt angepaßte Führungen und Führungsrollen einzusetzen. Jedoch ist das, abhängig von der Festigkeit und Art (Al, Cu - eindrähtig massiv oder mehrdrähtig verseilt) des verwendeten Leiters, praktisch kaum möglich, ohne daß die Leiterisolierung aus Kunststoff beschädigt wird. Zumal die Form der kreissektorförmigen Leiterquerschnitte mit 90° oder 120° Sektorwinkel durch relativ große Abrundungen an den Ecken nur wenig "Angriff" für eine Profilführung bietet.EP-A1-0582802 describes a stranding machine with alternating lay direction for wires of round cross-section. It consists of a fixed inlet guide in a swirl storage and a back and forth rotating laying head with guides for each wire. If the wires are now to be twisted around their axis, then they must be held in the laying head so that they cannot rotate. It makes sense to use guides and guide rollers that are form-fitting to the wire cross-section. However, depending on the strength and type (Al, Cu - solid solid or stranded) of the conductor used, this is practically impossible without damaging the plastic conductor insulation. Especially since the shape of the circular sector-shaped conductor cross sections with 90 ° or 120 ° sector angle offers only little "attack" for a profile guide due to the relatively large roundings at the corners.

Bei der vorliegenden Erfindung werden die, die Drehkraft aufbringenden Profilrollen (5, 6) am Legekopf (3) so in einem Bogen angeordnet, daß für das Verdrehen der Adern (1...Leiter, 2...Isolierung) ein Kurbelarm gebildet wird, mit dem Radius R, sodaß die jeweilige Umfangkraft Pu so klein wird, daß die Aderisolierung aus Kunststoff nicht beschädigt wird.In the present invention, the profile rollers (5, 6) which apply the torque are arranged on the laying head (3) in an arc such that a crank arm is formed for twisting the wires (1 ... conductor, 2 ... insulation) , with the radius R, so that the respective circumferential force P u becomes so small that the wire insulation made of plastic is not damaged.

Fig. 1 und Fig 2 zeigen beispielhaft einen solchen Legekopf (3), wobei der, in Drahtlaufrichtung (7) davorliegende "gestreckte Drallspeicher" nicht dargestellt ist. Der Legekopf (3) ist in den Lagerstellen (10, 11) drehbar gelagen, er wird vom Motor (12) und dem Riemenantrieb (13) oszilierend angetrieben. Die einzelnen Drähte (1) mit ihrer Isolierung (2) kommen in Durchlaufrichtung (7) aus dem "Drallspeicher".1 and 2 show an example of such a laying head (3), the “stretched swirl store” lying in front of it in the wire running direction (7) not being shown. The laying head (3) is rotatably mounted in the bearing points (10, 11), it is driven by the motor (12) and the belt drive (13) in an oscillating manner. The individual wires (1) with their insulation (2) come from the "twist accumulator" in the direction of travel (7).

Um nun die nötige Drehkraft zuin Verdrillen der steifen Drähte um ihre Längsachsen nicht an den abgerundeten Ecken (14) der Drähte angreifen zu lassen, werden die Drähte aus ihrer eigentlich idealen gestreckten Lage bogenförmig nach außen geführt, sodaß jeder Draht (1) einen Hebelarm mit dem Radius R bildet. Die erforderliche Umfangskraft Pu wird dadurch weitaus kleiner, sie hat dann die ganze Querschnittshöhe als Angriffslinie, sodaß die spezifische Flächenpressung klein genug wird, um die Isolierung (2) nicht zu beschädigen. Die Verseilung wird im Verseilnippel (9) gebildet und läuft in Richtung 8 in eine "Drallsperre" bekannter Art.In order to prevent the necessary torque from twisting the stiff wires around their longitudinal axes at the rounded corners (14) of the wires, the wires are led outward from their actually ideal, stretched position, so that each wire (1) has a lever arm the radius R. The required circumferential force P u is thereby much smaller, it then has the entire cross-sectional height as the line of action, so that the specific surface pressure becomes small enough not to damage the insulation (2). The stranding is formed in the stranding nipple (9) and runs in the direction 8 in a "twist lock" of known type.

In der dargestellten Fig. 1 wird beispielhaft die bogenförmige Führung aus mehreren kleineren Rollen dargestellt das verkleinert die Baugröße des Verseilkopfes. Es könnte aber auch jeweils nur eine einzige Rolle eventuell größeren Durchmessers (der Steifigkeit der Verseilelemente entsprechend) ausgeführt werden.In the Fig. 1 shown, the arcuate guide made of several smaller roles is shown as an example, which reduces the size of the stranding head. However, only a single roll of possibly larger diameter (corresponding to the rigidity of the stranding elements) could also be carried out in each case.

Claims (4)

Vorrichtung zur Herstellung einer Kabelverseilung (4) mit wechselnder Schlagrichtung aus Einzeldrähten (1) runden oder vornehmlich nicht runden Querschnitts, welche ohne Rückdrehung verseilt werden sollen, dadurch gekennzeichnet, daß der in wechselnder Drehrichtung antreibbare Legekopf (3) für jeden Draht eine bogenförmige Rollenführung aufweist, deren Rollenprofil (5) an die Querschnittsform der Drähte (1) angepaßt ist.Device for producing a cable stranding (4) with alternating lay direction from individual wires (1) of round or primarily non-round cross-section, which are to be stranded without reverse rotation, characterized in that the laying head (3), which can be driven in alternating direction of rotation, has an arcuate roller guide for each wire , whose roller profile (5) is adapted to the cross-sectional shape of the wires (1). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß, in Laufrichtung (7) der Drähte (1) gesehen, vor dem Legekopf (3) ein Drallspeicher für die einzelnen Elemente (1) der Verseilung vorgesehen ist, der aus drehbar gelagerten Führungsscheiben gebildet wird und die Führungsscheiben dem Profil der Drähte angepaßte Führungsrollen aufweisen.Apparatus according to claim 1, characterized in that, seen in the running direction (7) of the wires (1), a swirl store for the individual elements (1) of the stranding is provided in front of the laying head (3), which is formed from rotatably mounted guide disks and the guide disks have guide rollers adapted to the profile of the wires. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Führungsscheiben synchron zum Verseilkopf, über eine Transmissionswelle mit abgesetzt unterschiedlichen Übersetzungen angetrieben werden.Apparatus according to claim 2, characterized in that the guide discs are driven synchronously with the stranding head, via a transmission shaft with different ratios. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die feststehende Einlaufführung in den Drallspeicher, in gleicher Art wie der Legekopf nach Anspruch 1, für jeden Draht eine bogenförmige Rollenführung aufweist, deren Rollenprofil an die Querschnittsform der Drähte angepaßt ist.Apparatus according to claim 2, characterized in that the fixed inlet guide into the swirl store, in the same way as the laying head according to claim 1, has an arcuate roller guide for each wire, the roller profile of which is adapted to the cross-sectional shape of the wires.
EP96108841A 1995-06-06 1996-06-01 Method to manufacture a cable-twist Expired - Lifetime EP0749131B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT96108841T ATE289114T1 (en) 1995-06-06 1996-06-01 METHOD FOR PRODUCING CABLE STRANDING

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT962/95 1995-06-06
AT96295 1995-06-06
AT0096295A AT402305B (en) 1995-06-06 1995-06-06 DEVICE FOR PRODUCING A CABLE WIRING

Publications (2)

Publication Number Publication Date
EP0749131A1 true EP0749131A1 (en) 1996-12-18
EP0749131B1 EP0749131B1 (en) 2005-02-09

Family

ID=3503826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96108841A Expired - Lifetime EP0749131B1 (en) 1995-06-06 1996-06-01 Method to manufacture a cable-twist

Country Status (5)

Country Link
EP (1) EP0749131B1 (en)
AT (2) AT402305B (en)
DE (1) DE59611191D1 (en)
ES (1) ES2236721T3 (en)
PT (1) PT749131E (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1011108A1 (en) * 1998-12-14 2000-06-21 Gerhard Seibert Device for making cables with alternating twist direction
EP1017064A1 (en) * 1998-12-30 2000-07-05 Rosendahl Maschinen GmbH Method for manufacturing a cable with alternating twist direction from elements of sector-shaped cross-section
CN102592750A (en) * 2012-03-16 2012-07-18 江苏中超电缆股份有限公司 Molding device for cable fan-shaped conductor
CN107442668A (en) * 2017-08-10 2017-12-08 杭州华新电力线缆有限公司 A kind of cable special-shaped conductor wheel pressure type mould
CN111739699A (en) * 2020-08-25 2020-10-02 南昌冠东科技有限公司 A strip winding type photoelectric transmission composite cable untwisting device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2637943A1 (en) * 1976-08-23 1978-03-02 Kabel Metallwerke Ghh Telecommunication cable cording machine - has deflection roller near stranding pulley covered by sliding shoe for alternating twist direction
DE2855593A1 (en) * 1978-12-22 1980-06-26 Felten & Guilleaume Carlswerk METHOD AND DEVICE FOR REVERSING CABLE FOR HEAVY DEGRAPABLE ELEMENTS, SUCH AS STRONG CABLE CHARGERS

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582802B1 (en) * 1992-08-11 1999-03-10 Frisch GmbH Device for producing cables with alternating twist direction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2637943A1 (en) * 1976-08-23 1978-03-02 Kabel Metallwerke Ghh Telecommunication cable cording machine - has deflection roller near stranding pulley covered by sliding shoe for alternating twist direction
DE2855593A1 (en) * 1978-12-22 1980-06-26 Felten & Guilleaume Carlswerk METHOD AND DEVICE FOR REVERSING CABLE FOR HEAVY DEGRAPABLE ELEMENTS, SUCH AS STRONG CABLE CHARGERS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1011108A1 (en) * 1998-12-14 2000-06-21 Gerhard Seibert Device for making cables with alternating twist direction
EP1017064A1 (en) * 1998-12-30 2000-07-05 Rosendahl Maschinen GmbH Method for manufacturing a cable with alternating twist direction from elements of sector-shaped cross-section
CN102592750A (en) * 2012-03-16 2012-07-18 江苏中超电缆股份有限公司 Molding device for cable fan-shaped conductor
CN107442668A (en) * 2017-08-10 2017-12-08 杭州华新电力线缆有限公司 A kind of cable special-shaped conductor wheel pressure type mould
CN111739699A (en) * 2020-08-25 2020-10-02 南昌冠东科技有限公司 A strip winding type photoelectric transmission composite cable untwisting device

Also Published As

Publication number Publication date
EP0749131B1 (en) 2005-02-09
DE59611191D1 (en) 2005-03-17
AT402305B (en) 1997-04-25
ATE289114T1 (en) 2005-02-15
ATA96295A (en) 1996-08-15
PT749131E (en) 2005-05-31
ES2236721T3 (en) 2005-07-16

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