Heidelberger Druckmaschinen Ag

Christian Meier

Andreas Detmers

Sven Mader

J&uuml;rgen Kreutzk&auml;mper

Arno J&uuml;nger

Gotthard Schmid

Arno Jünger

Jürgen Kreutzkämper

Bernd Lassen

Lars Paulsen

Bernhard Zintzen

Markus Uihlein

Arno Juenger

Burkhard Paasch

Thomas Rupp

Juergen Kreutzkaemper

Ingo Ringle

Rene G&uuml;ldenberg

Wolfgang Theiss

Claus Harbach

An imaging apparatus for imaging on a recording medium is improved to permit the imaging power to be balanced between various groups of individual radiation sources with a low outlay and high accuracy. Two or more imaging heads that respectively include a multiplicity of individual radiation sources that can be electrically driven individually with light beams directed onto a radiation-sensitive layer of the recording medium. A drive moves the recording medium and the radiation sources relative to one another. A control device controls the power of the light beams of the radiation sources separately for each imaging head. A least one light guide is provided that guides a portion of the light beams emanating from the radiation sources to the receiver surface of a photoelectric sensor, which sensor is connected to the control device.

Apparatus for imaging on a recording medium

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

An apparatus for producing a printing form which, with little expenditure, permits exact beam alignment and positioning. The apparatus for producing the printing form contains a holder for at least one printing form blank, and at least one imaging module, which can be moved relative to the printing form blank and which contains at least one radiation source which, in order to produce image elements that accept printing ink, is aimed at the surface of the printing form blank and whose beam direction can be adjusted. The imaging module being accommodated in a six-point mounting in three bearing locations, each bearing location containing a spherical element and an associated bearing element and in each case the spherical element rests on it and, in order to adjust the beam direction, at least one element of one bearing location being disposed adjustably.

Apparatus for producing a printing form

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

A method for driving a printing press includes driving, in a printing operation, via a gear train by at least a first motor, at least one drum for advancing printing material and a printing-form cylinder, processing angle-of-rotation signals of the drum in a control device for controlling the driving of the drum and the form cylinder, and driving, in a printing-form production operation in the printing press, a printing-form cylinder by a separate motor. The method further includes, in an operation for producing the printing form, synchronously actuating the first motor and the separate motor by providing a gear allocated to the driving of the printing-form cylinder, and an adjacent gear allocated to the driving of the drum of the gear train, the gears being disposed relative to one another at the most out of contact with one another, and at the least barely in engagement with one another so as to exert a slight pressure on one another, and a device for performing the method.

Method and device for driving a printing press

A novel, inexpensive and compact printing press is provided, having a central plate cylinder ( ) including at least two printing plates ( ) mounted on the peripheral side, around which are arranged in a satellite configuration at least two blanket cylinders ( ) having assigned inking units ( ), including a transport device ( ), which loops around the blanket cylinder ( ) on the outside, in the manner of a closed, continuous belt, having printing sheets, which are pressed for the printing operation by compensating rollers ( ) against blanket cylinders ( ), and having a control unit ( ), which engages the particular inking unit ( ) and the blanket cylinder ( ) on the corresponding printing plate ( ) and lifts it off of the other printing plate(s) ( ).

Printing press having a central plate cylinder

An apparatus is provided for guiding a print carrier upon feeding the print carrier to and guiding the print carrier away from a form cylinder of a rotary printing machine. Guide elements for the print carrier are disposed axially parallel to the form cylinder. The guide elements are disposed in two groups. One group serves to pull the print carrier into the printing unit, while the other group assists in the removal of the print carrier from the printing unit of the rotary printing machine. The guide elements assisting the feeding-in and exchanging of the print carrier are protected against contact with the print carrier by throw-on elements during exchange of a print carrier. A printing unit in a rotary printing machine having the apparatus is also provided.

Apparatus for guiding a print carrier and printing unit in a rotary printing machine having the apparatus

A printing-unit accessory engaged with a printing unit of a printing press, in an operating position of the accessory, and removed from the vicinity of the printing unit, in at least one maintenance position of the accessory, includes a pivoting mechanism securing the accessory to the printing press, the pivoting mechanism being disposed in a region of a side wall of the printing unit in a manner that the accessory is movable into a vertical position adjacent the side wall, and at least one linear guide disposed in front of the side wall so that the accessory is displaceable into a horizontal position thereof distal from the printing unit.

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Schriesheim, Germany

Christian Meier