Procedure for monitoring continuously moved line of objects e.g. cigarette filter tips has error signal controlling throw-out device for rejection of faulty bar or stopper only with simultaneous adjustment of cutting instant

摘要

With the fully automatic monitoring and subsequent regulation of the cutting process for the division of a line (1) into individual bars or stoppers, in order to attain additionally a fully automatic separation into short and long bars or stoppers, one compares a certain actual length value in a digital way with the help of an opto-electronic sampling device (4) on one hand with a minimum and a maximum set point length of a set point length range. On the other hand, one compares the certain actual value in a digital way with the help of the opto-electronic device with a minimum value, formed from the minimum set point value less a tolerance value and a maximum set point value plus a tolerance value. An actual value that is smaller than the given minimum value or greater than the given maximum value causes an error signal which causes an error signal controlling a throw-out device for the rejection of the faulty bar or stopper only with a simultaneous adjustment of the cutting instant of the cutting device in the correcting sense.