Method and device of piecing or starting of spinning for...

Details Method and device of piecing or starting of spinning for... Method and device of piecing or starting of spinning for...

2005-11-01

2005-11-01

Calvert, John J. (Department: 3765)

Textiles: spinning, twisting, and twining

Apparatus and processes

Splicing

C057S263000

Reexamination Certificate

active

06959532

ABSTRACT:
The invention concerns a start of spinning or the method of piecing for spinning positions of air spinning frames, which, during a spinning process, produce a thread from a longitudinal fiber structure and which, for this, comprise a fineness influencing unit with parts drivable at the inlet side and part drivable at the outlet side with clamping points, a means for the air twist generation and a means for the thread take-off, whereby, after an interruption of the spinning process, the resumption of the production of the thread comprises the following steps. In particular, the method does provide for,that the start-up of the part of the drafting unit, driven at the outlet side, takes place with a subsequent time coordinated and delayed start-up of the part driven at the inlet side, in such a manner that the end portions of the torn longitudinal fiber structure and of the thread end overlap and pass, in overlapping condition, the clamping point of the part driven at the outlet side.

REFERENCES:
patent: 5339614 (1994-08-01), Witschi
patent: 5524427 (1996-06-01), Sekiya et al.
patent: 5802831 (1998-09-01), Imamura
patent: 5809764 (1998-09-01), Baba
patent: 5934058 (1999-08-01), Hirao et al.
patent: 6691501 (2004-02-01), Anderegg et al.
patent: 2002/0124545 (2002-09-01), Griesshammer et al.
patent: 2002/0144496 (2002-10-01), Anderegg et al.

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