Heidelberger Druckmaschinen Ag

Heidelberger Druckmaschinen

Rolf Spilger

Martin Mayer

Bernhard Roskosch

Michael Bantlin

Christian Thomas

Sven Baumgarten

Klaus Auer

Karl-Heinz Helmstädter

Heiner Pitz

Hans-Peter Hiltwein

Wolfgang Dolz

Hendrik Frank

Wolfgang Sch&ouml;nberger

Siegfried Kurtzer

Thomas Schaeffer

Jochen Bechtler

Manfred Gross

Michael Krüger

Bernhard Mechler

Uwe Peters

Volker Müller

Jürgen Maass

Norbert Thünker

Sebastian Krüger

Frank Heynig

Timo Breuninger

A method for adjusting ink zone openings in an ink fountain of a printing press uses a computer. The computer calculates a deflection of the ink fountain on the basis of an ink fountain model which contains forces that act on the ink fountain, and takes the calculated deflection of the ink fountain into consideration during the adjustment of the ink zone openings.

Method for compensating deflection of an ink fountain in printing presses

In a method for re-imaging a printing form that has been used for printing in a prior printing process a substrate of the printing form is cleaned globally of ink or varnish and the substrate is treated abrasively globally in order to erase a preceding printing image. The substrate to be imaged with a new printing image is treated locally in image regions with a pulsed laser beam and, in the process, a nanoscopic and hydrophobic surface structure is produced locally. The substrate is treated globally with a hydrophilicity intensifier, as a result of which the substrate becomes hydrophilic locally in the previously hydrophobic image regions. An apparatus has a corresponding erasing unit and an imaging unit with a femtosecond laser.

Method and apparatus for re-imaging a previously used printing form

A method and a device combine auxiliary and main stacks in a delivery or feeder of a machine for processing printing materials. The device includes a rake that can be moved in and out between the main and auxiliary stacks by a motor drive. A control computer controls the motor drive of the rake. Different speed profiles are stored in the control computer for the drive of the rake as a function of the printing materials in the stacks. A sheet-fed offset printing press having the device is also provided.

Method and device for combining auxiliary and main stacks in a delivery or feeder of a machine for processing printing materials and sheet-fed offset printing press having the device

A device for determining the wear of ink fountain films in an ink fountain has at least one ink metering element and a ductor in a printing press. The ink metering element can be moved in the direction of the ductor. A closed position of the ink metering element with an ink fountain film inserted can be determined, and that deviations from the closed position determined are registered by a sensor and the deviations registered can be supplied to a computer as a basis for determining the wear of the ink fountain film.

Wear detector for ink fountain films

A method for synchronizing the motion sequences of at least one main pile and at least one auxiliary pile in a feeder or delivery device of a printing material processing machine () having the following features: a drive () for moving the main pile () and a main pile controller () associated with the drive (), an additional drive () for moving the auxiliary pile () and an auxiliary pile controller () associated with the additional drive (). The auxiliary pile controller () receives from main pile controller () or from a further, higher-level machine controller () a start signal to move the auxiliary pile (), the start signal simultaneously initiating a movement of the main pile (). A related device is provided.

Method for synchronizing the main pile and the auxiliary pile

A gripper device in a sheet-processing machine includes a gripper, a gripper pad associated with the gripper and a first drive for moving the gripper out of an opened position thereof into a closed position thereof. The gripper is cooperatively engageable with the gripper pad for producing a clamping force for holding sheets being processed. A second drive is separately operable from the first drive during a production printing operation of the sheet-processing machine. The first and second drives are operable for positioning the gripper and/or the gripper pad so that clamping faces of one of the gripper and/or the gripper pad are movable by the second drive perpendicularly to clamping faces of the other of the gripper and/or the gripper pad.

Gripper device in a sheet-processing machine

A method and a corresponding inking unit permit positioning of a roller into at least two different operating positions. The roller is, in particular, a vibrator roller of an inking unit for a rotary printing machine. The roller is positioned by controlling or regulating a magnetic bearing device in which the roller is mounted.

Method and apparatus for using magnetic bearings to position an inking unit roller in at least two different positions

A method of controlling the travel speed of a unit in a machine for processing printing materials, including monitoring the travel speed by a first measuring device, includes additionally monitoring the travel speed by a second measuring device belonging to the machine; a control device for performing the method; and a machine for processing printing materials having the control device.

Method and device for controlling the travel speed of a unit in a machine for processing printing materials

A meterable screen roller having a peripheral surface whereon a multiplicity of printing ink-accepting depressions are disposed includes a respective base for the depressions formed by a resilient material, and respective chambers located underneath and assigned to the depressions, the chambers being actable upon by a pressure medium for respectively enlarging and reducing the volume of the depressions.

Meterable screen roller in a rotary printing machine

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Viernheim, Germany

Rolf Spilger