Textiles: cloth finishing – Cutting – Pile loops
Patent
1984-12-19
1987-10-27
Mackey, Robert R.
Textiles: cloth finishing
Cutting
Pile loops
D06C 1308
Patent
active
047019859
ABSTRACT:
The apparatus detects corduroy cutter needles coming out of the weft yarn loop channels which are being cut open by the needles, by means of a laser beam scanning about 10 to 20 times a second, transversely across the region where the parallel needles are working. The scanning laser beam creates a diffused light pattern having the general form of a transversely oriented geometric prism, e.g. a cylinder; and a plurality of detector devices determines any variation in the light distribution, as to time and lateral distance, in this scattered or diffused ight pattern. A logic circuit carries out and displays the results of the scanning and detecting, and stops the corduroy cutting machine when an emerged needle is detected.
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Peiretti Domenico
Pepino Antonio
Ribolla G. Carlo
Taroni Federico
Leglertex S.r.l.
Mackey Robert R.
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