Electromagnetic coupling equipment for regulation of switching times - has time link for delaying control impulse for switching off action

摘要

The equipment is for on speed depending regulation of switching on and switching off times of an electromagnet especially of a magnetic coupling in a drive of a label transporter of a labelling machine. The goods to be labelled are continuously transported at variable speed and the labels carrying band is intermittently transported at variable speed. The switching on of the coupling is depending on the approach (2) of the goods to the labelling position and the switching off of the coupling is depended on the length of the labels determined by feeling of spaces between the labels. In at least one switching line for switching on or switching off the drive coupling (9, 19) for the transport of labels is located a time link (R1, R2, C) for delaying a control impulse for the switching off action.