Process and apparatus for controlling a sorting machine

Details Process and apparatus for controlling a sorting machine Process and apparatus for controlling a sorting machine

1987-03-10

1989-01-24

Basinger, Sherman D.

Classifying, separating, and assorting solids

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

Condition responsive means controls separating means

209587, B07C 5342

Patent

active

047995963

ABSTRACT:
Method and apparatus for controlling a color sorting machine which sorts particulate products based on a color difference between the product and a background. A photoelectric cell receives light reflected from the product and provides an output signal to a microprocessor. The microprocessor uses photoelectric cell output signals of known good products to establish a range of predetermined acceptance values. If the detected signal falls outside the predetermined range, it is determined that the product is defective and an eject signal is provided to an ejector which ejects the bad product from the machine. Outside of the microprocessor, a comparator first compares the photoelectric output signals with the predetermined range of values established by the microprocessor. If the comparator detects a defective product, it provides an eject signal to the microprocessor which then commands the ejector to eject the defective product.

REFERENCES:
patent: 4120402 (1978-10-01), Swanson
patent: 4147619 (1979-04-01), Wassmer et al.
patent: 4166541 (1979-09-01), Smith
patent: 4369886 (1983-01-01), Lane et al.
patent: 4454029 (1984-06-01), Codding
patent: 4634881 (1987-01-01), Billion

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