Förfarande för att styra skärkanternas läge i en längdskärningsanordni ng för pappersbanor eller liknande och en motsvarande längdskärningsan ordning

摘要

Given the method, the pairs of circular knives (4,5) of a longitudinal cutter apparatus are displaced on rails (7) proceeding transversely relative to the web, being displaced thereon by prescribable positioning distances from an outer, apparatus-fixed bench mark up to a carriage-fixed bench mark. In order to be able to take the alterred position of the cutting edge (19) which may have arisen under given circumstances due to re-grinding into consideration, the distance of the cutting edge (19) from an edge (69) fixed to the carriage of a circular knife is measured by means of position sensors (80) and is input into the control as part of the positioning distances. The carriage (6) is thereby positioned at a different location such that the cutting edge (19) again lies at the proper location despite the re-grinding.