Thread testing apparatus for textile machines

Details Thread testing apparatus for textile machines Thread testing apparatus for textile machines

1976-09-20

1978-02-28

Rimrodt, Louis K.

Textiles: manufacturing

Thread finishing

Surface modification of running length

242 356R, 242 36, D01H 1322

Patent

active

040757447

ABSTRACT:
The thread testing apparatus of a textile spooling machine is equipped with a thread inserter which is responsive to knots formed in the thread. In a typical thread testing apparatus a flaw is detected in a fault sensing zone whereupon the thread is cut, the flaw is removed and the loose ends of the good thread are reunited with a knot. Due to the nature of the sensing mechanism, it is not desirable to place the reunited thread back in the fault sensing zone until the thread starts moving again. The thread inserter of the present invention accomplishes this function by detecting the presence of the reuniting knot with a slot having a width smaller than the knot, but larger than the average width of the thread. The thread inserter also includes a slough off means for guiding the thread back to the falt sensing zone and a magnetic means for biasing the thread inserter in a first knot detecting position.

REFERENCES:
patent: 3335476 (1967-08-01), Pitts et al.
patent: 3396442 (1968-08-01), Gilmore

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