Weft insertion control system for jet loom responsive to inserte

Details Weft insertion control system for jet loom responsive to inserte Weft insertion control system for jet loom responsive to inserte

1989-04-20

1990-04-10

Jaudon, Henry S.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

1391161, D03D 4736

Patent

active

049151428

ABSTRACT:
A weft insertion control system for a jet loom includes a weft yarn sensor for sensing a behavior of a forward end of an inserted weft yarn accurately, and a controlling system for controlling a weft inserting condition such as a fluid jet in accordance with the sensed behavior. The weft yarn sensor is arranged to detect at least one of the following first, second and third conditions. The first condition is a condition in which the picked weft yarn is elongated to a greatest length, and the weft forward end is farthest from a main fluid jet nozzle. The second condition is a condition in which the weft end is pulled back most by shrinkage of the weft yarn after the first condition is reached. The third condition is a condition in which the weft yarn is elongated again to a relative maximum length.

REFERENCES:
patent: 4744393 (1988-05-01), Takegawa
patent: 4830063 (1989-05-01), Takegawa

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