Automatic wire connection device

Preventing wire breakage after being connected to the wire collecting roller, also automatic wire connection can and without switching the control mode, and, by increasing the wire speed in order to shorten the wire connection time, automatic wire of the present invention in connection apparatus, with respect to the wire feed motor (10), with the time connection operation of the wire electrode (2) for outputting the rotational speed command to the feeding direction, the wire feed roller detected than the rotational speed command (4) performed in the wire feed motor control means for reducing the torque of the feed direction when towards the rotational speed is high, relative to the wire recovery motor (12), a wire recovery by outputting a predetermined wire collection roller speed instruction in automatic wire connection device comprising a wire collecting motor control means, a wire feed motor control means, the unwinding direction of the wire feed roller The absolute value of the motor torque, and is configured to perform a torque limit so as to be smaller than the absolute value of the motor torque to the dispensing direction. .The