Heidelberger Druckmaschinen Ag

Ulrich Luckhardt

Martin Mayer

Dieter Schaffrath

Peter Heiler

Mathias Zuber

Gerhard Heppenstiel

Oliver Nowarra

Felix Dorenkamp

Willi Stutz

A method for operating a printing machine in a print operating mode and another operating mode, for example a maintenance mode. In the print operating mode, bringing a vibrating roller periodically into contact with a first roller of an inking unit, driving the first roller rotationally by a first motor, driving a second roller of the inking unit rotationally by a second motor, transmitting no torque from the first motor to the second roller through a clutch therebetween, and activating the first motor by a control device causing the first roller to rotate at a rotational speed in a constant ratio to a rotational speed of the second roller. In the other operating mode, driving the first and second rollers rotationally by the first motor and transmitting torque from the first motor to the second roller through the clutch. A printing machine for carrying out the method Is also provided.

Method of operating a printing machine and printing machine for carrying out the method

Methods for performing a roller adjustment in a printing press include an axial spacing adjustment and an oblique position adjustment. The oblique position adjustment is carried out along a straight line of movement which extends perpendicularly relative either to another straight line of movement of the axial spacing adjustment or to a tangential line of a pivoting circular arc of the axial spacing adjustment.

Method for roller adjustment in a printing press

A printing press contains a distributor roller, an oscillating roller which has a roller axle and a roller barrel, and a switching device for optionally releasing, in a first operating mode, and locking, in a second operating mode, an oscillating movement of the roller barrel. The oscillating movement is driven frictionally by the distributor roller. The switching device is disposed separately from the roller axle and the roller axle is mounted so as to be adjustable relative to the switching device.

Printing press

A printing machine includes a printing form cylinder, a first roller, a second roller, a third roller, a fourth roller, and a dampener roller. The machine has a defined roller control position, wherein the first roller engages with the dampener roller, the third roller and the fourth roller, the second roller engages with the dampener roller, and the dampener roller engages with the printing form cylinder. In this same roller position, the second roller further engages with the third roller.

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Heidelberg, Germany

Ulrich Luckhardt