Sheet rotary printing machine i.e. sheet-fed offset rotary printing machine, has moving unit for moving rotation axis of gear wheel of transfer cylinder from initial position to another position while maintaining meshing

摘要

The machine has a set of printing elements (1, 2) provided with a set of plate cylinders (1.1, 2.1), a blanket cylinder (1.2) and a set of impression cylinders (1.3, 2.3), where a transfer cylinder (3) is arranged between two impression cylinders. A gear wheel of a main gear wheel train is attached to each cylinder. A moving unit moves a rotation axis of the gear wheel of the transfer cylinder from an initial position to another position while maintaining meshing, where the rotation axis of the gear wheel in the latter position exhibits parallelism to the initial position.