Double-belt draw frame

Details Double-belt draw frame Double-belt draw frame

1995-11-01

1997-02-11

Calvert, John J.

Textiles: fiber preparation

Working

Drafting

19288, 19150, 19236, D01H 526, D01H 572

Patent

active

056008724

ABSTRACT:
A process and device for bundling a fiber composite which has been drafted in a drafting device having a pair of output rollers and a pair of delivery rollers gathers together the fiber composite leaving the pair of output rollers in a fiber bundling zone. The fiber composite is conveyed through the fiber bundling zone and supported through the fiber bundling zone on one side by a conveying plane which moves in the direction of conveyance of the fiber composite. A suction air stream is drawn through the fiber bundling zone at substantially a right angle to the conveying direction of the fiber composite. The suction air stream causes the gathering together of the fiber composite in the bundling zone at a width substantially equal to a desired width of the fiber composite.

REFERENCES:
patent: 2659936 (1953-11-01), Sandelin
patent: 3090081 (1963-05-01), Klein
patent: 3122794 (1964-03-01), Klein
patent: 3438094 (1969-04-01), Field, Jr.
patent: 4290170 (1981-09-01), Brookstein et al.
patent: 4475272 (1984-10-01), Wood
patent: 4953349 (1990-09-01), Fehrer

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