Method and apparatus for adjusting a shear bar in a cutting apparatus using a vibration sensor.

摘要

Under the control of a microprocessor (200), first and second motors (110, 112) drive first and second ends (A, B) of a shear bar (102) for adjusting the position of the shear bar (102) relative to a cutter head (100). A knock sensor (118) is provided for sensing impacts between the cutter head (100) and the shear bar (102); the knock sensor output signal being converted to a digital value for controlling the adjusting sequence. <IMAGE>