Thread clip
    1.
    发明授权
    Thread clip 失效
    线夹

    公开(公告)号:US4909285A

    公开(公告)日:1990-03-20

    申请号:US269692

    申请日:1988-11-10

    IPC分类号: D03D47/34

    CPC分类号: D03D47/34

    摘要: A thread clip including a clamping mechanism (1) consisting of a first jaw (2) and a second jaw (3); a spring mechanism (4) which presses the clamping mechanism jaws (1) together; an electromagnetic device (5) which can open the clamping mechanism against the force of the above-mentioned spring mechanism (4); a cam mechanism (6) which can close the clamping mechanism (1) against the force of the electromagnetic device (5); and a mechanism (7) which on closing of the clamping mechanism (1) by means of the cam mechanism (6) presses the different elements of the clamping mechanism (1) against each other with a certain clamping force.

    Method for regulating the supply of weft thread on weaving machines, and
a device which uses this method
    4.
    发明授权
    Method for regulating the supply of weft thread on weaving machines, and a device which uses this method 失效
    用于调节织机上纬纱供应的方法,以及使用该方法的装置

    公开(公告)号:US4909286A

    公开(公告)日:1990-03-20

    申请号:US269650

    申请日:1988-11-10

    IPC分类号: D03D47/36 D03D47/34 H02P5/50

    CPC分类号: H02P5/50 D03D47/34

    摘要: A method for regulating the supply of weft thread on weaving machines includes the steps of winding the weft thread from a thread supply by means of a draw-off roller driven by a motor, supplying the thread to an accumulator, and controlling the draw-off roller motor by a pulse train generated on the basis of a set value and a second pulse train whose frequency is proportional to the main shaft of the weaving machine. By adjusting the set value, the speed of the draw-off roller can be adjusted to account for such factors as thread type, thickness extensibility and diameter, and also thread supply package diameter and variations in thread draw-off speed. A device for implementing the method of the invention includes, in a preferred embodiment, a cam, a set value setting unit, a shaft pulse generator for generating the second pulse train, a buffer, and a counter which adds the set value and the second pulse train to generate the first pulse train.

    Apparatus for adjusting weft thread lengths by changing the length of
weft thread supply path
    5.
    发明授权
    Apparatus for adjusting weft thread lengths by changing the length of weft thread supply path 失效
    通过改变纬纱供应路径的长度来调整纬纱长度的装置

    公开(公告)号:US4953597A

    公开(公告)日:1990-09-04

    申请号:US386601

    申请日:1989-07-31

    IPC分类号: D03D47/34 D03D47/36

    摘要: Apparatus for adjusting the length of the weft thread to be inserted into the shed of weaving looms that provides an automatic correction of the weft thread length during each weaving cycle of the weaving process by adding to or subtracting a variable amount of weft thread from the accumulated length of weft thread prior to insertion of the thread into the shed.

    摘要翻译: 用于调节插入梭织机梭口中的纬纱长度的装置,其通过加入或减少来自累积的纬纱的可变量的纬纱来提供织造过程的每个织造周期期间的纬纱长度的自动校正 在将线插入梭口之前的纬纱长度。

    Weft thread supply via two accumulators
    6.
    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.

    Adjustable control of the weft on a weaving loom
    7.
    发明授权
    Adjustable control of the weft on a weaving loom 失效
    编织机上纬纱的可调节控制

    公开(公告)号:US4673004A

    公开(公告)日:1987-06-16

    申请号:US733728

    申请日:1985-05-14

    IPC分类号: D03D47/30

    CPC分类号: D03D47/3053 D03D47/3033

    摘要: An adjustable control for weft thread delivery of an air jet weaving loom includes a system for selectively controlling the control time and the duration of master weft delivery jets in response to measurements made of weft thread delivery during the weaving process. Different types of weft threads are provided with their own master jets that are independently controllable as to duration time and/or control time. The duration and/or control time of auxiliary jets disposed along the shed of the loom are also controllable in response to detected weft motion. The system also includes a control system for the weft supply drums responsive to detected weft thread delivery during the weaving process.

    摘要翻译: 用于喷气织机的纬纱输送的可调节控制器包括用于响应于在编织过程期间由纬纱传送进行的测量而选择性地控制主纬纱输送喷嘴的控制时间和持续时间的系统。 提供不同类型的纬纱,其自身的主喷嘴可独立控制持续时间和/或控制时间。 响应于检测到的纬纱运动,沿织机梭口布置的辅助射流的持续时间和/或控制时间也是可控的。 该系统还包括用于纬纱供应桶的控制系统,其响应于织造过程中检测到的纬纱传送。