Fiber-disintegrating unit for a spinning machine

Details Fiber-disintegrating unit for a spinning machine Fiber-disintegrating unit for a spinning machine

1976-11-26

1978-01-10

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Unitary multiple twist devices

19105, 57 5895, 241222, D01H 112, D01G 1540

Patent

active

040671810

ABSTRACT:
A unit for disintegrating a sliver into spinnable fibers fed to a spinning machine comprises a fiber-disintegrating drum with serrations generating a cylinder on rotation of the drum. A first smooth feed roller guides the sliver to the cylinder and defines therewith a first and second wedge-shaped space on the sides of which the serrations approach and depart from the first feed roller during a rotation, and this feed roller may be adjustably spaced from the cylinder. A second clamping and smoothing feed roller is disposed in the first wedge-shaped space and defines a nip with the first feed roller, the feed rollers being operable to feed the sliver through the nip to the serrations. A cover extends into the second wedge-shaped space and is closely spaced from the first feed roller and as closely as possible from the cylinder. A first pair of pinch rollers feed the sliver to the nip and a second pair of pinch rollers feed the sliver to the first pair of pinch rollers, the first pair of pinch rollers being driven at a higher speed than the second pair of pinch rollers, and the feed rollers being driven at a higher speed than the first pair of pinch rollers.

REFERENCES:
patent: 692601 (1902-02-01), Berger
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patent: 3122904 (1964-03-01), Brandt
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patent: 3635271 (1972-01-01), Markham
patent: 3695022 (1972-10-01), Landwehrkamp
patent: 3762144 (1973-10-01), Didek et al.
patent: 3837586 (1974-09-01), Perschbacher et al.
patent: 3938746 (1976-02-01), Nordgren
patent: 3972173 (1976-08-01), Fehrer

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