Control of fibers in apron drafting systems of machinery used in

Details Control of fibers in apron drafting systems of machinery used in Control of fibers in apron drafting systems of machinery used in

1985-12-16

1988-03-01

Rimrodt, Louis K.

Textiles: fiber preparation

Working

Drafting

19249, 57315, D01H 586

Patent

active

047276266

ABSTRACT:
An improved fiber control for an apron drafting system of a spinning frame is disclosed which includes a rear pair of rolls (3, 6) a middle pair of rolls (2, 5), and a front pair of rolls (1, 4). A silver guidance zone is formed between upper apron 8 and lower apron 11 around rolls 5 and 2, respectively by which sliver is guided in a prescribed path. The guidance path may be configured especially to the fiber type and length by transverse projection elements (17, 18, 19) which engage lower apron 11 and are displaceable. The projection elements are displaceable perpendicular to and along the length of the sliver guidance zone and may be made to contact lower apron 11 to provide a desired shape for control of the sliver.

REFERENCES:
patent: 2686938 (1954-08-01), Noguera
patent: 2774995 (1956-12-01), Sandelin
patent: 3055060 (1962-09-01), Schitknecht
patent: 3636591 (1972-01-01), Herubel
patent: 4391021 (1983-05-01), Kamel

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