Method and apparatus for monitoring the operation of a friction

Details Method and apparatus for monitoring the operation of a friction Method and apparatus for monitoring the operation of a friction

1983-11-16

1986-01-28

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Monitor and control

57265, 57338, D02G 104, D01H 1314

Patent

active

045662622

ABSTRACT:
The production of defective yarn in a friction false-twisting unit is deted and prevented. Variations of speed of rotation caused by defects in drive elements, such as worn or jammed bearings or a damaged drive belt, are detected by comparing a signal indicating the speed of rotation of at least one shaft with a reference signal. If the signal differs from the reference signal, an electrical fault signal is generated. This fault signal may control a thread cutting device which cuts the thread coming from the unit; or the fault signal may go to a central thread monitoring station where an operator may observe that a fault has occurred.

REFERENCES:
patent: 3662531 (1972-05-01), Carroll
patent: 3950930 (1976-04-01), Shindo et al.
patent: 3994123 (1976-11-01), Sholly
patent: 4015414 (1977-04-01), Sholly
patent: 4019310 (1977-04-01), Seidl et al.
patent: 4068460 (1978-01-01), Fischbach

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