Method and apparatus for detecting collisions in printing machines

摘要

Apparatus for detecting collisions in a printing machine having at least one rotationally driveable rotary body (18; 20) and an actuator (28; 30) for adjusting the rotary body in a direction normal to the axis of rotation, the apparatus including a torque sensor (T) and/or an angle increment sensor (OMEGA) for detecting the driving torque and/or the rotary speed of the rotary body (18; 20), and a control unit (38) adapted to detect a collision of the rotary body with another component member on the basis of the signal of the torque or angle increment sensor and to stop the actuator (28; 30) thereupon.