Device for detecting neps in carded, textile fiber material

Details Device for detecting neps in carded, textile fiber material Device for detecting neps in carded, textile fiber material

1989-03-01

1990-09-04

Schroeder, Werner H.

Textiles: fiber preparation

Assembling

Web forming

19106R, D01G 1546

Patent

active

049532650

ABSTRACT:
For detecting neps in a textile fiber fleece band transported along a transporting path through a carding machine a detecting device comprises a mechanism for illuminating the fiber fleece band on at least one area located on the transporting path. Imaging optics project an image of this illuminated area onto the surface of one of a plurality of photo sensor elements. The area projected onto each one of the photo sensor elements substantially corresponds to the size of the neps to be detected. The photo sensor elements are connected to evaluation circuits for evaluating light intensity variations caused by neps passing the illuminated area.

REFERENCES:
patent: 3157915 (1964-11-01), Gilbo
patent: 3235911 (1966-02-01), Reiterer
patent: 3562866 (1971-02-01), Roberson et al.
patent: 3652864 (1972-03-01), Person
patent: 4272868 (1981-06-01), Grunder et al.
patent: 4481667 (1984-11-01), Price et al.
patent: 4805266 (1989-02-01), Leifeld et al.

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