Method and apparatus for optically monitoring a knitted article

Details Method and apparatus for optically monitoring a knitted article Method and apparatus for optically monitoring a knitted article

1988-10-05

1991-01-15

Rosenberger, Richard A.

Optics: measuring and testing

By monitoring of webs or thread

250559, 250563, 66163, G01N 2184, G01N 2186, D04B 3512

Patent

active

049848968

ABSTRACT:
For optical monitoring of a knitted article for faults during the manufacture thereof in a knitwear processing machine, the knitted article is scanned line by line by the optical scanner. The scan signals generated in the process are delivered to a digital processing circuit. In a reference mode, the scan signals are stored as pattern signals in the digital processing circuit. In a subsequent operating mode during manufacture of the knitted article, the scan signals are compared as operating scan signals with the pattern signals corresponding to the scan position, to check if they match. If they do not match, a fault signal is generated.

REFERENCES:
patent: 3474254 (1969-10-01), Piepenbrink et al.
patent: 4124300 (1978-11-01), Mead et al.
patent: 4166541 (1979-09-01), Smith, Jr.
patent: 4549413 (1985-10-01), Flamig
patent: 4748334 (1988-05-01), Kobayashi et al.
patent: 4845374 (1989-07-01), White et al.
Operating Instructions for KW Warp Knitting Machine Monitors by Erwin Sick GmbH Optic, Electronik.

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