Wire electrode feeding apparatus

Details Wire electrode feeding apparatus Wire electrode feeding apparatus

1990-04-18

1991-10-01

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

B23H 710

Patent

active

050535986

ABSTRACT:
A wire electrode feeding apparatus for an electrodischarge machine uses a motor-driven capstan roller to feed the wire electrode from a bobbin. A pinch roller presses the wire electrode against the capstan roller with a pressure that can be adjusted by a pressure adjusting mechanism. A pre-tension motor applies torque to the bobbin to resist the unwinding of the wire electrode. A control unit adjusts the pressure of the pinch roller and the torque of the pre-tension motor according to the diameter of the wire electrode, so that the wire electrode is not deformed and does not slip or snarl.

REFERENCES:
patent: 4929810 (1990-05-01), Kawase

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