Apparatus for controlling weft insertion in jet loom

Details Apparatus for controlling weft insertion in jet loom Apparatus for controlling weft insertion in jet loom

1992-02-19

1994-03-22

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

3642746, 364470, 3649211, 395 61, 395900, 1394352, 1394355, 139452, D03D 4730

Patent

active

052955150

ABSTRACT:
In a jet loom, a weft insertion start timing, a jet injection start timing of a main weft inserting nozzle and a jet injection stop timing of auxiliary weft inserting nozzles are controlled on the basis of empirical rules. A weft insertion control program incorporating the empirical rules is provided for a control computer for controlling an energization start timing of a solenoid, an energization start timing of an electromagnetic valve and a deenergization timing of an electromagnetic valve on the basis of the weft insertion start timing obtained from a weft release detector and the weft leading end arrival timing obtained from a weft detector. The control program is so prepared as to detect the control quantities for the detected data on the basis of specific correspondence relations between sequential arrayed data including a plurality of weft insertions start timing data and a plurality of weft leaving and arriving timing data, both data being classified in a particular order in accordance with empirical rules, and sequentially arrayed control quantities also classified in a particular order in accordance with an empirical rule.

REFERENCES:
patent: 4901770 (1990-02-01), Takegawa
patent: 5031669 (1991-07-01), Wahhoud et al.
patent: 5101867 (1992-04-01), Tsutomo et al.

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