Application of Piezoelectric Ceramics in Compensation Unit of Tobacco Cutter

The tobacco cutter's knives needed to be advanced to compensate for the wear while machine running. The existing wear compensation unit uses mechanical or pneumatic-mechanical driving device.A piezoelectric microdisplacement unit was developed by means of the inverse piezoelectric effect of piezoelectric ceramics, its linearity, stability, zero-resetting ability and value of delay were satisfactory both in static and dynamic states, and could be used in the knife wear compensation unit in tobacco cutter.