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Title:
DEVICE FOR DETECTING WEAR OF GUIDE ROLLER FOR WIRE SAW
Document Type and Number:
Japanese Patent JPH07266213
Kind Code:
A
Abstract:

PURPOSE: To automatically detect the wear of a guide roller without stopping the machine by connecting a voltage detecting means between one terminal of a power source and a detecting bar.

CONSTITUTION: A detecting bar 32, with which a wire 13 contacts when a guide roller 14 is worn, is provided near the guide roller 14. A voltage detecting means 33 is connected between one terminal of a power source 31 and the detecting bar 32, and a judge unit 34 for judging the wear of the guide roller 14 on the basis of the signal from the voltage detecting means 33 is provided./ Since the detecting bar 32 does not contact with the wire 13 in the normal condition of the guide roller 14, voltage is not generated in the voltage detecting means 33, but in the case where the guide roller 14 is worn, since the detecting bar 32 and the wire 13 contact with each other and both terminals of the voltage detecting means 33 are connected to both terminals of the power source 31, voltage is generated in the voltage detecting means 33. Consequently, wear of the guide roller 14 can be judged by detecting the voltage generated in the voltage detecting means 33.


Inventors:
KATAMACHI SHIYOUZOU
Application Number:
JP1994000083840
Publication Date:
October 17, 1995
Filing Date:
March 30, 1994
Export Citation:
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Assignee:
TOKYO SEIMITSU CO LTD
International Classes:
B28D1/08; B23D57/00; B24B27/06; B28D5/02; (IPC1-7): B24B27/06; B28D1/08; B28D5/02