Picking control for air jet loom with timing and pressure correc

Details Picking control for air jet loom with timing and pressure correc Picking control for air jet loom with timing and pressure correc

1990-08-21

1992-04-07

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

D03D 4730

Patent

active

051018675

ABSTRACT:
A picking control apparatus for providing stable picking operation in a jet loom. The apparatus comprises an angle correcting section for outputting an angle correction amount of a picking start angle on the basis of an arrival angle deviation of filling yarn and a pressure correcting section for outputting a pressure correction amount of an injection pressure in a locking nozzle on the basis of a flying term deviation of filling yarn. The angle correcting section promptly corrects and controls a change of an arrival angle caused by a variation of flying characteristic of filling yarn, and thereafter the pressure correcting section corrects and controls a flying term so as to be adjusted to a set value. As a result, a stable picking operation in which only the picking start angle is not excessively deviated can be accomplished.

REFERENCES:
patent: 4732179 (1988-03-01), Takegawa
patent: 4830063 (1989-05-01), Takegawa
patent: 4932442 (1990-06-01), Ishido et al.
patent: 4967806 (1990-11-01), Imamura et al.

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