D - Textiles – Paper – 03 – D
Patent
D - Textiles, Paper
03
D
139/13
D03D 45/20 (2006.01)
Patent
CA 2004655
ABSTRACT OF THE DISCLOSURE An automatic cop changing device for a weaving machine in which a shuttle carrying a cop consisting of a bobbin around which a weft is wound is reciprocated between warps so as to weave the weft between the warps, comprising: a cop positioning unit for securing the shuttle stationary near a terminal point of its reciprocating movement when the weft of a current cop mounted on the shuttle is consumed by more than a prescribed amount; a cop storage unit for storing a plurality of new cops; a robot arm carrying a weft gripping hand for drawing the weft from the current cop and a weft from one of the new cops stored in the cop storage unit, and crossing the two wefts, a cop engaging hand for moving the cop in the shuttle between its upright position and its retracted position, and a cop gripping hand for removing the old cop from the shuttle and carrying the new cop into the shuttle; a weft tying unit for tying the crossed part of the wefts; and a weft trimming unit for trimming an extraneous part of the tied weft. This device permits quick replacement of cops without causing undue strain on the weft. The advantageous use of a robot arm permits a compact and simple design of the entire device.
Aoyagi Takayoshi
Iwasaki Tokuji
Konno Tetsuya
Murakami Fumio
Okazaki Sadaaki
Goudreau Gage Dubuc
Nippon Felt Co. Ltd.
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