Heidelberger Druckmaschinen Ag

Arno Jünger

Peter Hachmann

Andreas Detmers

Gotthard Schmid

Thomas Schmidt

Christian Hieb

Alexander Knabe

Bernd Sitzmann

Daniel Conzelmann

Sven Mader

Christian Meier

Rainer Hofmann

Markus Kramer

Olaf Lorenz

Rolf Kündgen

Patrick Roth

Jürgen Kreutzkämper

Klaus Gohl

Hans Butterfaβ

Michael ÖStreicher

Pasquale Parisi

An apparatus for turning a sheet during transport through a printing press provides better printed results as a result of improved sheet guidance. A transfer drum has gripper systems disposed in channels for holding the sheet at the leading and trailing sheet edge, and guide elements covering the channels.

Apparatus for turning a sheet during transport through a printing press

A method and an apparatus for turning a sheet during its transport through a printing press permit improved printing results as a result of improved sheet guidance. A sheet is tautened following a transfer from a first transport device to a second transport device.

Method and apparatus for turning a sheet during its transport through a printing press

A printing unit configuration includes an accessory and a connection mechanism moveably fastening the accessory thereto, throwing the accessory thereon into a working position, and removing it therefrom into maintenance positions. A linear guide can be connected to the accessory and disposed perpendicular to a pivot axis, with the mechanism pivoting the accessory away from the unit about the axis and displacing it along the guide. The mechanism can have two pivot axes disposed parallel to the unit rotation axis and can pivot the accessory away from the unit first about the first axis then about the second. The mechanism can pivot the accessory about an axis perpendicular to the unit rotation axis and/or about a single pivot axis disposed below the accessory. The mechanism can connect the accessory to the unit to project into a recess of a side wall of the printing machine at a side opposite an operator side in a maintenance position.

Accessory for a printing unit

A rotary printing machine includes at least one form cylinder, at least one further cylinder, and a gear transmission via which the form cylinder and the further cylinder are drivable together during a printing operation. A device is provided for setting an image on a printing form located on the form cylinder. A switchable speed-change gear mechanism is disposed between the form cylinder and the gear transmission for driving the form cylinder during the printing operation.

Rotary printing press having a switchable speed-change gear mechanism with plant gears

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Nussloch, Germany

Arno Jünger