Weft feed rate control method

Details Weft feed rate control method Weft feed rate control method

1997-09-26

1999-05-11

Falik, Andy

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

D03D47/30

Patent

active

059017570

ABSTRACT:
A weft control method capable of adjusting weft feed rate correctly and easily. The control method is for looms which include a weft length measuring system having a length measuring roller 1a and a pinch roller 1b, a weft feeding system having a gripper (4) and a nozzle (3), and weft arrival sensors (6, 7) installed in a weft arriving position in the loom. In accordance with the weft control method, a weft arrival measurement value measured by weft arrival sensors is stored, an average weft arrival value for a certain number of picks is calculated, then the calculated average arrival value is compared with a preset reference target value; and the weft length measuring system is controlled based on the result of the comparison.

REFERENCES:
patent: 3926224 (1975-12-01), Vermeulen et al.
patent: 4877064 (1989-10-01), Pezzoli
patent: 4886094 (1989-12-01), Takegawa
patent: 4921019 (1990-05-01), Kawabata et al.
patent: 5154209 (1992-10-01), Takegawa

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