device for abfallosen druckperforation of different substrates in ratation printing machines

摘要

PURPOSE: To perform perforation without producing waste capable of more rotionally performing the production of individual sections as stamp or coupon and essentially keeping a traditional saw-toothed breaking. CONSTITUTION: A cutting thin plate 6 arranged on a cutting cylinder 5 side has a number of cutting edges, and the cutting edges are arranged at intervals so as to have a prescribed angle α to the virtual breaking line 11 of a print.