Patent ID: 6769336
Filing Date: 2004-08-03
Classification: B21F,B23D,Y02P,Y10S,Y10T

Abstract:
A wire cutting apparatus for periodically cutting off wire being advanced through a cutting station, the apparatus comprising:a support; a cutter holder carried by the support having a wire cutter, the cutter holder adapted to oscillate relative to the support to work the wire cutter into the predetermined wire path; an electrical motor carried by the support having an output directly oscillating the cutter holder, the motor having run and stop modes and being capable of oscillating the cutter at a first frequency during a continuous run mode of the motor; a position sensor arranged downstream of the cutting station adapted to produce an output signal indicating presence of wire in proximity to the end of the predetermined wire path; and a controller selectively generating an electrical output to the electrical motor in response to output signals of the position sensor, the controller continuously driving the electrical motor when a second frequency of the output signals from the position sensor is at least equal to or greater than the first frequency, the controller intermittently switching the motor between run and stop modes when the second frequency is less than the first frequency.