Circular needling loom with smooth table

D - Textiles – Paper – 04 – H

Patent

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Details

D04H 18/00 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2445986

The invention concerns a circular loom for needling an annular preform comprising a vertically mobile needling table serving as horizontal support to said annular preform, and a needling head including a specific number of barbed needles, arranged in line with the needling table in a needling zone, and driven in a vertical reciprocating movement, wherein the annular preform is set on the needling table itself and is driven in rotation on the needling table by driving means, the needling table remaining stationary during said rotation. Said driving means comprise an assembly of conical friction rollers maintained in continuous contact with the annular preform.

Dans une machine d'aiguilletage circulaire d'une préforme annulaire comportant une table d'aiguilletage mobile verticalement et servant de support horizontal à cette préforme annulaire, et une tête d'aiguilletage comprenant un nombre déterminé d'aiguilles à barbes, disposée à; l'aplomb de la table d'aiguilletage dans une zone d'aiguilletage, et animée d'un mouvement alternatif vertical, il est prévu que la préforme annulaire est posée à même la table d'aiguilletage et est entraînée en rotation sur la table d'aiguilletage par des moyens d'entraînement, la table d'aiguilletage restant fixe pendant cette rotation. Ces moyens d'entraînement comportent un ensemble de rouleaux de friction coniques maintenus en contact continu avec la préforme annulaire.

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