Method of and apparatus for removing dirt particles from staple

Details Method of and apparatus for removing dirt particles from staple Method of and apparatus for removing dirt particles from staple

1979-07-17

1981-02-10

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Clearing

57 5891, D01H 7888, D01H 7898

Patent

active

042493706

ABSTRACT:
A method of and apparatus for removing dirt particles from staple fibers and straightening the resulting clean fibers in an open-end spinning unit which includes means for feeding sliver, fiber opening means, and means for twisting the thus cleaned and opened fibers. Fibers together with dirt particles contained therein are accelerated by the opening action and are exposed to a first air flow which, by its deceleration due to its expansion, separates the dirt particles from the fibers. Immediately thereafter, the thus cleaned fibers are exposed to a second air flow by which they are straightened due to an acceleration imparted to them by said second air flow.
In the apparatus of the invention there are provided three sectors, viz. a fiber opening sector, a dirt discharging sector, and a fiber straightening sector, in that order, the dirt discharging sector merging with the fiber straightening sector via a widened mouth.

REFERENCES:
patent: 3777466 (1973-12-01), Kabele et al.
patent: 3892063 (1975-07-01), Doudlebsky et al.
patent: 3924397 (1975-12-01), Stahlecker et al.
patent: 3953961 (1976-05-01), Harrap et al.
patent: 4009562 (1977-03-01), Stalder
patent: 4142356 (1979-03-01), Husges

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