ROTARY SHEET-PRINTING MACHINE FOR PERFECTING OR MULTI-COLOUR PRINTING

摘要

A sheet-fed rotary printing machine for single-side multi-color printing or perfector printing having an in-line type of construction with at least one sheet-turning device as well as devices for processing both papers and cardboard, and respective printing units each having, in addition to a plate cylinder and a blanket cylinder of equal given diameter, an impression cylinder having a diameter at least double the given diameter and a sheet transfer drum includes a lower printing-unit part with parts of the turning device located between an adjacent pair of the printing units, the lower printing-unit part having a storage drum in place of an impression cylinder, the storage drum being formed with at least two sheet-carrying surfaces, and a sheet transfer drum with a diameter at least double the given diameter, the printing unit of the adjacent pair of printing units following the lower printing-unit part, in travel direction of a sheet through the printing machine, having a sheet transfer drum formed as a turning cylinder following the storage drum, the turning cylinder carrying at least two systems of pincer-type grippers.