Textiles: weaving – Miscellaneous – Loom cleaning
Patent
1996-01-19
1997-12-09
Falik, Andy
Textiles: weaving
Miscellaneous
Loom cleaning
26 70, 25055901, 25055939, 242534, 356431, 1393702, 139353, 139351, D03J 106, D03D 5118, D06H 312, D06H 308
Patent
active
056949790
ABSTRACT:
A woven cloth inspecting apparatus eliminates the influences of disturbances such as illuminating light and fly. At least two photoreceptor elements are arranged in the direction of the weft yarn of woven cloth. The photoreceptor elements detect different area of the woven cloth and they apply current signals to two respective current-to-voltage converters which convert the current signals into voltage signals which are fed to a difference calculating circuit. The difference calculating circuit calculates the difference between the values of the voltage signals received from the two current-to-voltage converters and supplies the obtained difference signal to a comparator which compares the received difference signal with a reference value preset by two reference value setting circuits. Exceeding the reference value is indicative of a defect in the warp. Alternatively the photoreceptor elements are arranged in the warp direction and detect defects in the weft. Also, photoreceptor elements can be located in both the weft and warp directions.
REFERENCES:
patent: 4738284 (1988-04-01), Ishikawa et al.
patent: 5433253 (1995-07-01), Toda et al.
Falik Andy
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
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