EP1441063A1 - Toronneuse à double torsion - Google Patents

Toronneuse à double torsion Download PDF

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Publication number
EP1441063A1
EP1441063A1 EP03425034A EP03425034A EP1441063A1 EP 1441063 A1 EP1441063 A1 EP 1441063A1 EP 03425034 A EP03425034 A EP 03425034A EP 03425034 A EP03425034 A EP 03425034A EP 1441063 A1 EP1441063 A1 EP 1441063A1
Authority
EP
European Patent Office
Prior art keywords
rollers
stranding machine
cable
machine according
previous
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Withdrawn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
EP03425034A
Other languages
German (de)
English (en)
Inventor
Fabrizio Recchia
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.)
Officine Meccaniche di Lesmo SpA
Original Assignee
Officine Meccaniche di Lesmo SpA
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 Officine Meccaniche di Lesmo SpA filed Critical Officine Meccaniche di Lesmo SpA
Priority to EP03425034A priority Critical patent/EP1441063A1/fr
Publication of EP1441063A1 publication Critical patent/EP1441063A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • D07B3/08—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the take-up reel rotates 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 rope or cable on the take-up reel in fixed position and the supply reels are fixed in position
    • D07B3/10—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the take-up reel rotates 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 rope or cable on the take-up reel in fixed position and the supply reels are fixed in position with provision for imparting more than one complete twist to the ropes or cables for each revolution of the take-up reel or of the guide member
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02—Machine details; Auxiliary devices
    • D07B7/021—Guiding means for filaments, strands, ropes or cables

Definitions

  • the present invention relates to a double-twist stranding machine, and in particular to a double-twist stranding machine having an arc structure which rotates around a stationary central structure.
  • EP 123656 A discloses a double-twist stranding machine comprising a base on which an arc structure can rotate around a stationary central structure.
  • a bobbin is rotated in this stationary structure around its own axis for winding a finished cable pulled into the stationary structure by one or more pulleys, so that it undergoes a double twist due to the rotation of the arc structure, which comprises for this purpose a pair of rotating guides mutually connected by an arc along which the cable runs, thereby simultaneously rotating around the stationary structure.
  • Both rotating guides of the arc structure of this known stranding machine comprise a pulley which deviates toward the arc, and vice versa, the feed direction of the cable, generally coinciding with the horizontal rotation axis of the arc structure.
  • the high sliding friction due to the wide contact of the cable with the surface of the race causes a localized torsion of the cable in the rotating guides, so that the resulting cable has a stranding pitch substantially different from the one upstream the machine, with consequent risk of cable imperfections, such as for instance ovalings or swellings, during the passing of the cable in the arc structure.
  • the stranding machine allows to minimize the friction of the cable in the rotating guides, so that the torsion of the cable tends to "go out” already upstream the machine, i.e. before it goes into the rotating guides, so that the stranding pitch upstream the machine comes close to the final stranding pitch and the obtained cable results free from imperfections.
  • the rotating guides are provided with a plurality of rollers which can be rotated so that their rotation axis is not perpendicular to the feed direction of the cable, but forms with the latter given angles which allow to minimize the rolling friction and, above all, the sliding friction.
  • the axis of the rollers are oriented with the stranding direction of the cable, so that the rotation of the rollers imparts to the cable a force tending to rotate it around its own axis in the stranding direction, so as to facilitate the "exit" of the torsions upstream the machine.
  • the stranding machine comprises in a known way a base 1 on which an arc structure 2 can rotate around a horizontal axis 3.
  • the arc structure 2 also rotates around a stationary central structure 4 in which a bobbin 5 is rotated around its own axis for winding a finished cable 6 pulled by one or more pulleys 7 (shown with broken lines) arranged in the same stationary structure 4.
  • Cable 6 comes from the outside of the stranding machine (from the left in figure 1) and undergoes a double twist when it runs toward bobbin 5 in the arc structure 2 rotating around axis 3.
  • the arc structure 2 comprises in turn a pair of rotating guides 2a, 2b mutually connected by an arc 2c along which cable 6 runs.
  • the first rotating guide 2a and/or the second rotating guide 2b of the arc structure 2 are suitably provided with a plurality of rollers 8 along which cable 6 can run pulled by pulleys 7.
  • Each roller 8 is preferably idle, is provided with a concave race and is mounted on a fork support 9 comprising a pin 10 substantially perpendicular to the rotation axis of roller 8, as well as to the portion of cable 6 tangent to the same roller.
  • Pin 10 is inserted into a corresponding hole made in a transversal plate 11 fixed to the rotating guide 2a or 2b.
  • the free end of pin 10 is further preferably threaded, so that the rotation of the fork support 9 can be locked by tightening into such a threaded end a nut 12 which urges against plate 11, in particular through a washer.
  • the rotating guide 2a is provided with three rollers 8 arranged along an arc covering an angle ⁇ comprised between 20° and 60°, for example substantially equal to 40°
  • the rotating guide 2b is provided with twelve rollers 8 arranged along an arc covering an angle ⁇ comprised between 160° and 120°, for example substantially equal to 140°.
  • angle ⁇ is substantially equal to a straight angle minus angle ⁇ , i.e. ⁇ ⁇ 180° - ⁇ .
  • figure 4 shows that the revolving supports 9 can be rotated so that the axis of rollers 8 form with the portion of cable 6 tangent thereto not a right angle, as in the known art, but an acute angle comprised between 60° and 90°, for example about 70°.
  • cable 6 touches the edges of the race of rollers 8 and is not located at the bottom thereof, thus minimizing not only the rolling friction due to the running onto rollers 8, but especially the sliding friction due to the contact with their surface.
  • the axis of rollers 8 are preferably oriented with the stranding direction of cable 6.
  • cable 6 has a left stranding direction with respect to the feed direction (indicated with the arrow), so that the axis of roller 8 is oriented so that the stranding direction of cable 6, viewed from the outside, is substantially parallel to the axis of roller 8 or forms a small angle therewith, in particular lower than 20°.

Landscapes

  • Ropes Or Cables (AREA)
EP03425034A 2003-01-24 2003-01-24 Toronneuse à double torsion Withdrawn EP1441063A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03425034A EP1441063A1 (fr) 2003-01-24 2003-01-24 Toronneuse à double torsion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03425034A EP1441063A1 (fr) 2003-01-24 2003-01-24 Toronneuse à double torsion

Publications (1)

Publication Number Publication Date
EP1441063A1 true EP1441063A1 (fr) 2004-07-28

Family

ID=32524307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03425034A Withdrawn EP1441063A1 (fr) 2003-01-24 2003-01-24 Toronneuse à double torsion

Country Status (1)

Country Link
EP (1) EP1441063A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007002304A1 (de) 2007-01-16 2008-07-17 Maschinenfabrik Niehoff Gmbh & Co Kg Verfahren und Anlage zur Herstellung eines Kabels mit Folienschirmung mit einer Doppelschlag-Verseileinrichtung
WO2011124291A1 (fr) 2010-04-09 2011-10-13 Maschinenfabrik Niehoff Gmbh & Co. Kg Machine pour le traitement d'un produit filiforme allongé
WO2019197193A1 (fr) * 2018-04-12 2019-10-17 Maschinenfabrik Niehoff Gmbh & Co. Kg Machine à toronner
RU2776499C2 (ru) * 2018-04-12 2022-07-21 Машиненфабрик Нихофф Гмбх Унд Ко. Кг Свивочная машина

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB422129A (en) * 1933-07-05 1935-01-07 Anton Kraft Improvements in and relating to machines for making ropes
US3196601A (en) * 1962-09-17 1965-07-27 Delore Sa Geoffroy Deflector device for a revolving wire or the like
US3309857A (en) * 1963-04-12 1967-03-21 Delore Sa Geoffroy Apparatus for processing cable-like elements
EP0123656A1 (fr) * 1983-04-21 1984-10-31 OFFICINE MECCANICHE DI LESMO S.p.A. Toronneuse avec arc de support des fils compensé dynamiquement
FR2616165A1 (fr) * 1987-06-02 1988-12-09 Godderidge Stephane Moulineuse-assembleuse pour la fabrication de cables en couches alternees
EP0461844A2 (fr) * 1990-06-11 1991-12-18 Cortinovis S.P.A. Perfectionnements aux toronneuses

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB422129A (en) * 1933-07-05 1935-01-07 Anton Kraft Improvements in and relating to machines for making ropes
US3196601A (en) * 1962-09-17 1965-07-27 Delore Sa Geoffroy Deflector device for a revolving wire or the like
US3309857A (en) * 1963-04-12 1967-03-21 Delore Sa Geoffroy Apparatus for processing cable-like elements
EP0123656A1 (fr) * 1983-04-21 1984-10-31 OFFICINE MECCANICHE DI LESMO S.p.A. Toronneuse avec arc de support des fils compensé dynamiquement
FR2616165A1 (fr) * 1987-06-02 1988-12-09 Godderidge Stephane Moulineuse-assembleuse pour la fabrication de cables en couches alternees
EP0461844A2 (fr) * 1990-06-11 1991-12-18 Cortinovis S.P.A. Perfectionnements aux toronneuses

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007002304A1 (de) 2007-01-16 2008-07-17 Maschinenfabrik Niehoff Gmbh & Co Kg Verfahren und Anlage zur Herstellung eines Kabels mit Folienschirmung mit einer Doppelschlag-Verseileinrichtung
WO2011124291A1 (fr) 2010-04-09 2011-10-13 Maschinenfabrik Niehoff Gmbh & Co. Kg Machine pour le traitement d'un produit filiforme allongé
DE102010014356A1 (de) 2010-04-09 2011-10-13 Maschinenfabrik Niehoff Gmbh & Co Kg Maschine zum Verarbeiten von langgestrecktem Stranggut
DE202011110557U1 (de) 2010-04-09 2014-08-22 Maschinenfabrik Niehoff Gmbh & Co Kg Rotorbügel, insbesondere für Maschine zum Verarbeiten von langgestrecktem Stranggut
US8893464B2 (en) 2010-04-09 2014-11-25 Maschinenfabrik Niehoff Gmbh & Co. Kg Machine for processing elongate strand-form material
WO2019197193A1 (fr) * 2018-04-12 2019-10-17 Maschinenfabrik Niehoff Gmbh & Co. Kg Machine à toronner
RU2776499C2 (ru) * 2018-04-12 2022-07-21 Машиненфабрик Нихофф Гмбх Унд Ко. Кг Свивочная машина
US11946200B2 (en) 2018-04-12 2024-04-02 Maschinenfabrik Niehoff Gmbh & Co. Kg Stranding machine

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