Selvedge forming device for shuttleless looms with linear motor

Details Selvedge forming device for shuttleless looms with linear motor Selvedge forming device for shuttleless looms with linear motor

1991-08-07

1992-10-27

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

139 1R, D03D 4748

Patent

active

051581191

ABSTRACT:
A device to form the selvedge in shuttleless looms, includes a weft yarn gripping member, a first shaft reciprocable lengthwise to operate the weft yarn gripping member, a first linear electric motor to reciprocate the first shaft, a cutting member for cutting weft yarn gripped by the gripping member, a second shaft reciprocable lengthwise to actuate the cutting member, and a second linear electric motor for reciprocating the second shaft. A yarn engaging hook is carried by a needle to insert weft tails cut off by the cutting member, into a strip of warp yarns, thereby to form a selvedge. A third shaft carries the needle, from which said needle extends transversely. A third linear electric motor reciprocates the third shaft lengthwise. A sensor senses the reciprocated position of the third shaft thereby to control the third linear electric motor. A fourth linear electric motor rotates the third shaft. Another sensor senses the rotated position of the third shaft thereby to control the fourth linear electric motor. A microprocessor receives input from sensors and controls the operation of the motors and continuously varies the operation of the device.

REFERENCES:
patent: 4909283 (1990-03-01), Verclyte
patent: 4943927 (1990-07-01), Yarita et al.

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