Method and apparatus of transporting an elongate flexible...

B - Operations – Transporting – 65 – H

Patent

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Details

B65H 20/24 (2006.01) B65H 51/12 (2006.01)

Patent

CA 2175037

The invention relates to a method of transporting an elongated, flexible object (1,5), such as a belt, chain, wire or web, wherein the speed of a part of the elongated object (1,5) is periodically varied, while maintaining a constant speed of the upstream and downstream parts of the object(1,5).The method comprises feeding the elongate object (1,5) past transport members (9,11,13,15) such as rotating transport rollers which are oscillated parallel to the elongate object (1,5) in the direction of transport and opposite to the direction of transport. Three sections of the elongate object are during oscillation of the transport members maintained in a mutually parallel relationship. Translation and rotation balancing mechanism allow the transport members (9,11,13,15) to be driven at high speeds and low variations in torque.

L'invention se rapporte à un procédé de transport d'un objet flexible allongé (1, 5) tel qu'une courroie, une chaîne, un fil métallique ou une bande. Lors de ce transport, la vitesse d'une partie de l'objet allongé (1, 5) est amenée à varier périodiquement, alors qu'une vitesse constante des parties amont et aval de l'objet (1, 5) est maintenue. Le procédé consiste à faire passer l'objet allongé (1, 5) devant des organes de transport (9, 11, 13, 15), tels que des cylindres rotatifs qui oscillent parallèlement à l'objet allongé (1, 5) dans le sens du transport et dans le sens opposé au transport. Lors de l'oscillation des organes de transport, trois sections de l'objet allongé sont maintenues parallèles les unes aux autres. Un mécanisme d'équilibrage du mouvemnt de translation et de rotation permet que les organes de transport (9, 11, 13, 15) soient entraînés à des vitesses élevées et à de faibles variations du couple.

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