Control of lower limit of jet pressure for a picking nozzle

Details Control of lower limit of jet pressure for a picking nozzle Control of lower limit of jet pressure for a picking nozzle

1990-12-14

1992-05-26

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

D03D 4730

Patent

active

051158400

ABSTRACT:
A control method and control apparatus for controlling jet pressure of a picking nozzle of a jet loom which includes detecting a flying characteristic of the filling yarn and inhibiting descending control of a pressure controller for controlling jet pressure when the unevenness of the flying characteristic exceeds a set allowable value. In the control apparatus, the pressure controller is positively controlled by an auxiliary controller provided with a flying characteristic detection mechanism, an unevenness calculation mechanism and a comparison mechanism.

REFERENCES:
patent: 4732179 (1988-03-01), Takegawa
patent: 4827990 (1989-05-01), Takegawa
patent: 5031672 (1991-07-01), Wahhoud et al.
Japanese Patents Gazette, week 8822, Section Ch, Class D, No. AN-88151631, Derwent Publications Ltd., London, GB; & JP-A-63 092 753 (Toyoda) Apr. 23, 1988.

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