Process and device for pneumatic feeding of fibers to the fiber

Details Process and device for pneumatic feeding of fibers to the fiber Process and device for pneumatic feeding of fibers to the fiber

1993-08-16

1994-11-08

Stodola, Daniel P.

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57411, 57412, 57413, D01H 430, D01H 432, D01H 436

Patent

active

053615743

ABSTRACT:
In conveying fibers (20) pneumatically to the fiber collection surface of an open-end spinning element, the fibers (20) fed into the fiber feeding channel (4) are detached from the wall (42) of the fiber feeding channel (4)which follows the fiber-guiding peripheral wall (12) of the opener roller (10) preceding the fiber feeding channel (4) and are fed to the zone of high flow speed. For this purpose the concave peripheral wall (12) preceding the fiber feeding channel (4) merges via a convex surface (41) of such configuration and length into the wall (42) of the fiber feeding channel (4) that a tangent (43) applied to the end of the concave peripheral wall (12) preceding the fiber feeding channel (4) intersects the opposite wall (420) of the fiber feeding channel (4). Along that wall (420) which is intersected by the tangent (43), an air conveying channel (6) lets out into the fiber feeding channel (4), it being possible to convey an auxiliary air stream (80) through it to the fiber feeding channel (4) in a direction contrary to the direction of rotation of the opener roller (10). As a result, the fibers (20) are brought into the zone of higher flow speed and are maintained therein.

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