VERFAHREN ZUR STEUERUNG DER UMLAUF-BAHNBEWEGUNGEN DER DRUECKROLLE EINER DRUECKMASCHINE UND DRUECKMASCHINE ZUR DURCHFUEHRUNG DES VERFAHRENS

摘要

A process is disclosed for controlling the revolutions of the impression cylinder (29) of a printing machine (10). The coordinate driving units (52, 53), which are designed as valve controlled (49, 51) hydrocylinders (42, 47), are operated according to a play-back process according to which the coordinate driving units (52, 53) are operated according to a follow-up process in which position set values are electrically preregulated and mechanical real values are fed back. The slowing down path DELTA S (contouring error) is continuously measured at least during the last revolution of the pressure roller (29), so that when a threshold value DELTA Smax is exceeded, the tracking speed VB is reduced or a transition to an intermediate revolution curve occurs. A printing machine for carrying out the process is also disclosed.