Apparatus for detecting anomalies in corduroy preparation

Details Apparatus for detecting anomalies in corduroy preparation Apparatus for detecting anomalies in corduroy preparation

G - Physics

01

N

341/47, 341/49,

G01N 21/89 (2006.01) D03D 51/44 (2006.01) D06C 13/08 (2006.01) D06H 3/08 (2006.01) G01N 21/898 (2006.01)

Patent

CA 1260113

ABSTRACT The apparatus detects corduroy cutter needles coming out from the weft yarn loop channels which the needles should cut open, by a laser beam scanning about 10 to 20 times a second, transversely the region where the parallel needles are working. The scanning laser beam creates a diffused light pattern having the general form of a transversal prism, e.g. a cylinder; a plurality of detector devices determines any variation in the light distribution, as to time and lateral distance, in this scattered of diffused light pattern. A logic carrying out and displaying the seanning and detecting as well as stopping the corduroy cutting machine is described too. (Fig. 2)

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