Method and arrangement for producing a basic element of a...

G - Physics – 02 – B

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G02B 6/44 (2006.01) B29C 47/00 (2006.01)

Patent

CA 2226396

The invention relates to a method and an arrangement for producing a basic element of a multi-element optic cable, comprising a coating tool (6) for forming a tubular sheathing around a fibre (3) or a fibre bundle formed of several optical fibres (3), and a pulling device (8) placed after the coating tool (6) for pulling forward a unit formed by the sheathing and the fibres. In order to produce a stable product, the tension (t3) of the fibres (3) passed to the coating tool (6) is arranged to be kept continuously at a controlled level. The direction of travel of the fibres and the sheathing is arranged to be kept straight before the pulling device (8), and the pulling device (8) is placed from the coating tool (6) at a distance depending on the production rate of the production line, so that the desired sliding of the fibres (3) inside the sheathing is provided at the pulling device (8).

La présente invention concerne un procédé et un équipement de production d'un élément de base de câble optique à plusieurs éléments, comprenant un outil de revêtement (6) destiné à former une gaine tubulaire autour d'une fibre (3) ou d'un faisceau de fibres constitué par plusieurs fibres optiques (3), et un dispositif de traction (8) placé après l'outil de revêtement (6) pour tirer vers l'avant une unité constituée de la gaine et des fibres. Afin de fabriquer un produit stable, on fait en sorte que la tension (t¿3?) des fibres (3) transmise à l'outil de revêtement (6) soit maintenue en permanence à un niveau contrôlé. Le déplacement des fibres et de la gaine est maintenu rectiligne avant le dispositif de traction (8), et celui-ci est placé à une distance de l'outil de revêtement (6) qui est fonction de la vitesse de fabrication de la chaîne de production, de telle sorte que le glissement désiré des fibres (3) à l'intérieur de la gaine est donné dans le dispositif de traction (8).

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