Weft thread supply via two accumulators
    1.
    发明授权
    Weft thread supply via two accumulators 失效
    纬纱通过两个蓄电池供电

    公开(公告)号:US4947898A

    公开(公告)日:1990-08-14

    申请号:US267092

    申请日:1988-11-03

    IPC分类号: D03D47/36 B65H51/20 D03D47/34

    摘要: A method for supplying weft threads to the weft of a weaving machine includes the steps of leading the thread successively through two thread accumulators, one of which is a prewinder which at each insertion releases a length of thread equal to the thread length required, and the second of which is a thread accumulator which has a lower draw-off resistance than the prewinder, and which provides a thread accumulation consisting of at least a part of the length of thread released from the prewinder. An apparatus for implementing the above method includes the above-mentioned two accumulators and control means for controlling thread insertion nozzles and also a thread clip on the low-resistance accumulator which determines the beginning of insertion and a magnetic pin on the prewinder which controls the end of insertion.