Sliver guide assembly including a thickness sensor having operat

Details Sliver guide assembly including a thickness sensor having operat Sliver guide assembly including a thickness sensor having operat

1995-10-27

1997-08-26

Bennett, G. Bradley

Geometrical instruments

Gauge

Continuous gauging

73159, G01B 320, G01B 330, G01B 338

Patent

active

056599684

ABSTRACT:
An apparatus for measuring sliver thickness in a drawing frame includes a sliver guiding device having converging inner wall faces for bringing a plurality of simultaneously introduced slivers together to form a sliver assembly constituted by side-by-side positioned running slivers arranged in a plane. The apparatus further includes a sensor element and a counterelement laterally contacting the sliver assembly from opposite sides. The sensor element has an operative position and a servicing position; in the servicing position the apparatus outlet is free for access from the exterior. The sensor element is urged into a resilient contact with the sliver assembly whereby the sensor element undergoes excursions upon variation of thickness of the sliver assembly. There is further provided a setting arrangement for selectively positioning the sensor element into the operative or servicing position. The sensor element and the counterelement together define a constriction through which the sliver assembly passes. A transducer converts excursions of the sensor element into electric pulses. A withdrawing roller pair supported downstream of the sliver guiding device pulls the sliver assembly through the sliver guiding device.

REFERENCES:
patent: 5014547 (1991-05-01), Holroyd
patent: 5075979 (1991-12-01), Foskett
patent: 5140852 (1992-08-01), Bonigk et al.
patent: 5161398 (1992-11-01), Gore et al.

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