Method and system for the manufacture of annular fibrous...

Details Method and system for the manufacture of annular fibrous... Method and system for the manufacture of annular fibrous...

D - Textiles, Paper

04

H

D04H 1/70 (2006.01) B29C 70/14 (2006.01) B29C 70/24 (2006.01) D04H 1/46 (2006.01) D04H 3/02 (2006.01) D04H 3/07 (2006.01) D04H 3/10 (2006.01) D04H 18/00 (2006.01) F16D 69/02 (2006.01)

Patent

CA 2486608

Free fibers (10) are deposited on a rotary support plate (30) by means of a hollow deposition cone (40) comprising an outer partition surrounding a chamber and being pierced by multiple perforations. The fibers are guided to the outer surface of the perforated wall of the cone (40) in a feed zone of the deposition cone on the plate (30), are then maintained by creating a depression in the chamber, resulting in suction via the perforations of the partition of the cone, in order to be transported by rotating the cone from the feed zone to the zone for deposition on the plate, and maintenance of the fibers is suppressed in the zone of deposition by localized interruption of the suction via the perforations of the partition of the cone, at least on the level of said zone, such that the fibers transported are deposited on the plate which is rotatingly driven around the axis thereof simultaneously with the cone. The fibers deposited on the rotary plate (30) can be compacted and needled.

Des fibres libres (10) sont déposées sur un plateau de support rotatif (30) au moyen d'un cône de dépôt creux (40) comprenant une paroi extérieure entourant une chambre et percée de multiples perforations. Les fibres sont amenées à la surface externe de la paroi perforée du cône (40) dans une zone d'alimentation du cône éloignée de la zone de dépôt sur le plateau (30), puis sont maintenues par établissement d'une dépression dans la chambre, produisant une aspiration à travers les perforations de la paroi du cône, pour être transportées par rotation du cône de la zone d'alimentation du cône à la zone de dépôt sur le plateau, et le maintien des fibres sur le cône est supprimé dans la zone de dépôt par interruption localisée de l'aspiration à travers les perforations de la paroi du cône au moins au niveau de cette zone, de sorte que les fibres transportées se déposent sur le plateau entraîné en rotation autour de son axe simultanément avec le cône. Les fibres déposées sur le plateau rotatif (30) peuvent être compactées et aiguilletées.

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