Heidelberger Druckmaschinen Ag

Andreas Mallok

Bernhard Wagensommer

Holger Faulhammer

Eckehard Sommer

Matthias Herden

Ralf Würdinger

A method is provided for synchronizing drive combinations having a plurality of drives for machines. The drives include at least one master drive and a plurality of slave drives assigned to the master drive. A central control unit is provided, as well as controls for each of the drives, including data processing and storage equipment. The slave drives are synchronized with respect to at least one of rotational speed and angular setting as prescribed by the master drive. The steps of the method, depending upon operating values of the master drive, include determining at least one synchronization function for each of the slave drives, determining master-synchronous operating values for each operating time for the respective slave drive with the synchronization function, and prescribing the determined operating values for the respective drive. A device for performing the method is also provided.

Method and device for synchronizing drive combinations

A device for laterally aligning a sheet in a sheet-processing machine, includes a marking device for automatically identifying a sheet side edge.

Marking device for sheet side edges in a rotary printing machine

A method separates out individual sheets from a sheet-processing machine, by a revolving gripper chain bearing grippers for gripping the sheets one after another at a leading edge thereof and conveying them with a given mutual travel spacing and a given conveying speed to a stacking region for deposition. A separating device is disposed beyond the stacking region. The separating device has a controllable revolving suction belt for conveying individual sheets. The suction belt is accelerated to the conveying speed and the individual sheets are conveyed to the separating device. The individual sheets are picked up with the suction belt, and the grippers are opened. The suction belt is briefly decelerated so as to withdraw the respective sheet from the grippers. The suction belt is accelerated again to at least the conveying speed. The suction belt is subsequently decelerated to a given output speed.

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Wiesloch, Germany

Andreas Mallok