Method and apparatus at a draw frame for fibre slivers, for...

Details Method and apparatus at a draw frame for fibre slivers, for... Method and apparatus at a draw frame for fibre slivers, for...

2006-08-29

2006-08-29

Welch, Gary L. (Department: 3765)

Textiles: fiber preparation

Working

Drafting

Reexamination Certificate

active

07096542

ABSTRACT:
In a method, at a draw frame for fibre slivers, of adjusting the nip line spacing of a drawing mechanism, which has at least two drawing mechanism roller combinations, of which at least one is so mounted that it can be adjusted, each drawing mechanism roller combination consists of at least one driven lower roller and at least one upper roller (press roller) lying, in operation, on top of the lower roller and so mounted that it can be lifted off.In order to allow optimisation of specific drawing mechanism settings using the same fibre material, with fibre slivers inserted, a) the upper rollers are unloaded or lifted off, b) the mountings of at least one lower roller are unlocked, c) the mountings are adjusted to the desired nip line spacing using a displacement device, d) the mountings are subsequently re-locked.

REFERENCES:
patent: 3869759 (1975-03-01), Savageau et al.
patent: 4768262 (1988-09-01), Gunter
patent: 6088882 (2000-07-01), Leifeld
patent: 6292982 (2001-09-01), Breuer
patent: 35 32 555 (1987-03-01), None
patent: 24 26 429 (1975-05-01), None

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