Patent ID: 6712200
Filing Date: 2004-03-30
Classification: B65G

Abstract:
An automatic centering device for a conveyor belt for industrial and/or agricultural machinery, the belt being of the type looped around at least two tensioning rollers, the device comprising:a detection system which generates a signal correlated to a transversal movement of the belt in a direction relative to a belt's centered reference position, and wherein said belt is centered on the two rollers; actuator means which drive the rotation of at least one of the two rollers in a plane parallel to the main plane in which the belt lies between the two rollers; a control unit, its input connected to the detection system and its output connected to the actuator means, continuously implementing a procedure involving at least, in succession, a step of acquiring and processing the signal, a step of comparing the signal processed with a predetermined threshold value and, if the threshold value is exceeded, a step of activating the actuator means in which the two rollers are made to converge on the side opposite the direction of the transversal movement of the belt by a predetermined angle relative to their starting configuration, promoting a transversal movement of the belt in the opposite direction and returning it towards its reference position.