Textiles: fiber preparation – Working – Carding
Patent
1987-05-26
1988-10-11
Rimrodt, Louis K.
Textiles: fiber preparation
Working
Carding
19106R, 19240, D01G 2306
Patent
active
047760664
ABSTRACT:
An apparatus which feeds a fiber lap to a fiber processing machine has a reserve chute connected to a pneumatic fiber tuft conveying duct to receive fiber tufts therefrom; a feed chute connected to the reserve chute; a feed roller arranged for advancing fiber tufts from the reserve chute into the feed chute; a drive for rotating the feed roller; an arrangement for delivering a compressing air stream into the feed chute for densifying a fiber tuft column therein; a plurality of air outlet openings to provide a passage of the air stream out of the feed chute; a pressure sensor situated in the feed chute; a pressure regulator connected with the pressure sensor and the drive for altering the rpm of the feed roller as a function of the pressure prevailing in the feed chute. There are further provided a desired pressure value setter connected with the pressure regulator; a fill-level measuring device situated in the feed chute; a fill-level regulator operatively connected to the fill-level measuring device and the desired value setter of the pressure regulator for applying signals from the fill-level measuring device to the pressure regulating device via the fill-level regulator; and a common control device operatively connected to the fill-level regulator and the pressure regulator for receiving signals from the common control device.
REFERENCES:
patent: 4494204 (1985-01-01), Hosel
patent: 4520531 (1985-06-01), Hergeth
patent: 4530134 (1985-07-01), Hosel
patent: 4535511 (1985-08-01), Leifeld
patent: 4689857 (1987-09-01), Pinto
Rimrodt Louis K.
Trutzschler GmbH & Co. KG
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