Weaving machine with pneumatic weft thread insertion

Details Weaving machine with pneumatic weft thread insertion Weaving machine with pneumatic weft thread insertion

D - Textiles, Paper

03

D

D03D 47/30 (2006.01) D03D 47/34 (2006.01) D03D 47/38 (2006.01) D03D 49/70 (2006.01)

Patent

CA 2234464

The invention concerns a mechanical loom comprising a weaving reed (8) and a weft thread guide device (32) which are interconnected so as to pivot between an insertion position and a stop position. In order to insert the weft, there are provided a stationary weft-insertion device (14) with at least one blower nozzle (22) for inserting a weft thread (38) into the guide duct (36), as well as a thread clamp (16) and scissors (15). The thread clamp (16) is coupled with the weaving reed in order to clamp an inserted weft thread (38) and convey it synchronously with the guide duct (36) from the insertion position to the stop position. The scissors (15) are arranged downstream of the thread clamp (16) in the stop direction in order to cut off the weft thread immediately after it has been clamped. Since the insertion device is stationary and the thread clamp and scissors are operatively associated with the weaving reed, control of the loom is simplified such that up to sixteen different weft threads can be inserted.

L'invention concerne un métier mécanique qui contient un peigne (8) et un dispositif de guidage du fil de trame (32) qui sont interconnectés et peuvent pivoter entre une position d'insertion et une position de butée. Pour insérer la trame, il est prévu un dispositif d'insertion approprié (14) monté fixe, qui comprend au moins une buse de projection (22) pour insérer un fil de trame (38) dans le canal de guidage (36), une pince pour fil (16) et des ciseaux (15). La pince pour fil est accouplée au peigne, afin de pincer un fil de trame (38) inséré et de le faire passer, de manière synchrone avec le canal de guidage (36), du point d'insertion au point de butée, et les ciseaux (15) sont placés en aval de la pince pour fil (16) dans le sens de butée, afin que le fil de trame puisse être coupé immédiatement après pinçage. La disposition fixe du dispositif d'insertion et l'adjonction fonctionnelle au peigne de la pince pour fil et des ciseaux permettent de simplifier le mode de commande de manière à pouvoir insérer jusqu'à seize fils de trame différents.

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