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1. (WO2017177658) SLIDING AND POSITIONING WEFT CATCHER

Pub. No.:    WO/2017/177658    International Application No.:    PCT/CN2016/103467
Publication Date: Fri Oct 20 01:59:59 CEST 2017 International Filing Date: Fri Oct 28 01:59:59 CEST 2016
IPC: D03D 47/34
Applicants: SUZHOU DANFANG TEXTILE R & D CO., LTD
苏州市丹纺纺织研发有限公司
Inventors: HE, Xiaodong
何晓东
Title: SLIDING AND POSITIONING WEFT CATCHER
Abstract:
Disclosed is a sliding and positioning weft catcher, comprising a frame-shaped rail (200) disposed at a weft catch end of a weaving machine. A frame-shaped optical sensor (300) is provided on the rear side of the frame-shaped rail (200). Four slide slots (220) are provided on the inner side of the frame-shaped rail (200). Two sliders (210) driven by a motor are provided in each slide slot (220). The sliders (210) oppositely disposed in the slide slots (220) are correspondingly connected by means of two pairs of parallel metal wires (100). The motor and the sliders (210) are electrically connected with the frame-shaped optical sensor (300). The metal wires (100) are driven by the motor to rotate in opposite rotation directions. In the sliding and positioning weft catcher, when the frame-shaped optical sensor detects that a weft passes through the weft catcher, the motor starts, and the sliders drive the parallel metal wires to quickly move toward each other from edges of the frame-shaped rail. As the quadrilateral defined by the four parallel metal wires becomes smaller, the weft is finally limited at the center of the frame-shaped rail. Moreover, since the parallel metal wires oppositely rotate inwards, the weft can be tensioned and prevented from coming off.