Method for avoiding weaving a faulty weft thread during repair o

Details Method for avoiding weaving a faulty weft thread during repair o Method for avoiding weaving a faulty weft thread during repair o

1996-06-10

1997-07-01

Falik, Andy

Textiles: weaving

Weft manipulation

Means for withdrawing defective weft

D03D 5108, D03D 5134

Patent

active

056427590

ABSTRACT:
In an air jet loom, a method is provided for avoiding weaving a faulty weft thread such as a broken weft thread into the cloth being woven. When a faulty weft thread is inserted into the loom shed, the failure of the thread to traverse the weaving width is detected preferably optoelectronically by a suitable sensor. Thereupon the weaving operation of the loom is interrupted and a repair thread is inserted into the loom shed to remove the faulty weft thread. The length of the repair thread is less than the normal length of the weft threads that are inserted for the usual weaving operation. Thereby the repair thread is too short by itself to reach the weft thread sensor, and only when the faulty thread is properly connected to the repair thread will the sensor be triggered.

REFERENCES:
patent: 4781221 (1988-11-01), Onishi et al.
patent: 5016676 (1991-05-01), Fourneaux et al.

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