Method and apparatus for driving drafting rollers during thread-

Details Method and apparatus for driving drafting rollers during thread- Method and apparatus for driving drafting rollers during thread-

1990-05-23

1992-12-08

Stodola, Daniel P.

Textiles: spinning, twisting, and twining

Apparatus and processes

Stopping or starting

57279, D01H 1302, D01H 518

Patent

active

051686945

ABSTRACT:
A spinning machine includes a yarn draw-off apparatus having a pair of rollers including a draw-off roller being continuously rotatable in a draw-off direction and a shiftable contact roller to be pressed against the draw-off roller for clamping a spun yarn in a gap between the rollers and transporting the yarn. A method and apparatus for drawing-off a yarn produced in the spinning machine include driving the contact roller at a predeterminable circumferential speed prior to beginning drawing-off yarn while the gap between the rollers is open, before pressing the contact roller against the draw-off roller for drawing-off the yarn and closing the gap between the rollers.

REFERENCES:
patent: 1794578 (1931-03-01), Broch
patent: 4089155 (1978-05-01), Stahlecker
patent: 4127983 (1978-12-01), Munker
patent: 4187588 (1980-02-01), Tsukumo
patent: 4356691 (1982-11-01), Karl et al.
patent: 4365465 (1982-12-01), Muller et al.
patent: 4550560 (1985-11-01), Tanaka et al.
patent: 4704857 (1987-11-01), Stahlecker

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