Apparatus and method for correcting irregularities in a series s

Details Apparatus and method for correcting irregularities in a series s Apparatus and method for correcting irregularities in a series s

1995-05-26

1996-10-15

Falik, Andy

Textiles: weaving

Special-type looms

Pushed shed pocket

139450, 1394351, 1391162, 139452, 139436, D03D 4100, D03D 4736

Patent

active

055644732

ABSTRACT:
An apparatus and method for correcting an irregularity during the insertion of a weft yarn into a weaving rotor of a series shed weaving machine involves drawing a length of weft yarn from a supply unit and delivering the weft yarn to the weaving machine in synchronicity with the weaving cycle. The length of weft yarn is inserted into a weft yarn conveyor apparatus and wound around a conveyor roller. A sensor is positioned between the supply unit and the conveyor apparatus to detect a weft yarn interruption, e.g., as a result of a weft yarn breakage or the yarn running out of spool. When the interruption is detected, the conveyor roller continues to deliver weft yarn stored in the storage apparatus until a complete weft yarn insertion into the weaving machine has taken place (i.e., weft yarn having a single loom width). The weft yarn is then cut at the insertion side of the weaving machine and the weaving machine is stopped. The weft yarn remaining in the weft preparation unit is then pulled back by the conveyor roller and discharged into a waste container.

REFERENCES:
patent: 4664157 (1987-05-01), Shin
patent: 4858658 (1989-08-01), Shaw
patent: 5012844 (1991-05-01), Griffith
patent: 5069395 (1991-12-01), Krumm
patent: 5103876 (1992-04-01), Benz et al.
patent: 5154209 (1992-10-01), Takegawa

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