Method and apparatus for recognizing foreign substances in and s

Details Method and apparatus for recognizing foreign substances in and s Method and apparatus for recognizing foreign substances in and s

1997-07-25

2000-07-11

Nguyen, Tuan N.

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Condition responsive means controls separating means

209587, 209588, 209938, 250223R, 250226, 356402, B07C 5342

Patent

active

060876085

ABSTRACT:
A fiber processing method includes the steps of removing fiber tufts from a series of fiber bales; pneumatically conveying the fiber tufts in a duct; forming images of the conveyed material as it passes through a first location of the duct; determining the degree of lightness or the color of the fiber tufts by an image processing device; determining the degree of lightness of foreign substances, conveyed with the fiber tufts, by the image processing device; comparing the measuring values obtained by the image processing device with a settable limit value; and initiating a switching operation when the limit value is exceeded for branching off to a waste receiver the fiber tufts from the duct at a second location thereof.

REFERENCES:
patent: 5135114 (1992-08-01), Satake et al.
patent: 5443164 (1995-08-01), Walsh et al.
patent: 5626237 (1997-05-01), Hergeth
patent: 5791489 (1998-08-01), Leifeld

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