Improper weft removing device for air jet loom

Details Improper weft removing device for air jet loom Improper weft removing device for air jet loom

1990-07-24

1991-09-10

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Means for withdrawing defective weft

1393702, D03D 4734

Patent

active

050465325

ABSTRACT:
An improper weft removing device for an air jet loom is capable of precisely measuring the length of the improper weft and judging whether the whole of the improper weft has been discharged or a cut piece of the improper weft is left in the open shed of the warps at the time of discharging the improper weft. The device includes a sensor for detecting the passage of the improper weft, a controller for measuring the length of the improper weft according to a signal outputted from the sensor, a nozzle for blowing pressurized air against the end portion of the improper weft thereby controlling the running attitude of the end portion of the improper weft, and a discharge nozzle for delivering the improper weft on an air stream to a discharge dust box, wherein the blowing pressure of the discharge nozzle can be controlled.

REFERENCES:
patent: 4688606 (1987-08-01), Tamatani
patent: 4729411 (1988-03-01), Ellenberger et al.
patent: 4730643 (1988-03-01), Tamatani

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