Heidelberger Druckmaschinen Ag

Erich Michael Zahn

Gerhard Pollich

Rainer Buschulte

Richard Burkhard Mack

Werner Huber

Heiner Luxem

Clemens Rensch

Michael Kohlmann

Oliver Gottschalt

Michael Nubel

Rainer Klenk

Karl-Heinz Filsinger

Martin Schmitt-Lewen

Hans Butterfass

Gerhard Fischer

Michael Bantlin

Bruno Eltner

Peter Gamperling

Peter Stadler

Klaus Sauer

Karl-Heinz Walther

Manfred Gang

Alexander Cartellieri

A method of using a printing plate includes, in a first step, setting an image on the printing plate in an imaging machine, while holding the printing plate firmly on a magnetic cylinder of the imaging machine during the imaging process, and in a second step, printing in a printing machine with the printing plate having the image set in this manner; and an imaging machine and a printing machine for performing the method.

Imaging assembly for imaging printing plate including magnetic drum and registration system

An apparatus for transferring a sheet stack which is located on a first pallet to a second, different pallet. The apparatus is distinguished by a number of horizontal carrying rods which are disposed like a rake, are intended to engage temporarily under the sheet stack, can be moved in their longitudinal direction and in a vertical direction while the respective ends of the carrying rods are supported. The carrying rods are longer in length than a respective extent of both pallets in a direction of the carrying rods.

Pallet-changing apparatus

A device for storing, transporting and feeding a roll-forming web of printing material for a machine for processing the material. The device has a housing that surrounds and includes a receptacle for the roll. The housing is manipulatable in a manner analogous to a pallet, and is disposed for receiving and surrounding the roll, from which the web of printing material is unwindable.

Apparatus for storing, transporting and delivering roll-formed flat printing material for a machine processing such material

An inking unit in a printing machine includes a screen roller and an ink metering system subdivided into inking zones and assigned to the screen roller for performing zonal ink metering on the screen roller, the ink metering system having metering elements disposed so as to be movable relative to one another.

Inking unit in a printing machine having a chambered doctor blade and multiple inking zones

A flexible bearing bar includes a flexurally soft tensile member carrying, on one side thereof, a multiplicity of compressive elements disposed successively in series and formed with respective contact surfaces, said tensile member being supportable on two supports, and said contact surfaces being subjectible to a load acting between said supports, from said compressive elements in a direction towards said tensile member for keeping said contact surfaces, respectively, in contact with one another.

Flexible bearing bar for accommodating a sheet pile in a sheet-processing machine

Method for form-processing paper in a printing press by at least one processing tool and a computer includes converting digital data representing desired processing geometries into signals in the computer, and controlling the at least one processing tool with the signals so as to obtain the processing geometries: and apparatus for performing the method.

Apparatus for form-processing paper in a printing press

Product is printed in a combined printing process with two ink systems. The printing material is first printed with a solvent-based or radiation-curing ink and then with at least one offset-typical ink. The printing machine for the inline implementation of the novel process is a hybrid press, having a flexo printing unit and a downstream offset printing unit. A UV, electron-beam or air-stream dryer is integrated into the flexo printing unit, or a UV, electron-beam or air-stream drying unit is arranged between the flexo printing unit and the offset printing unit.

Combined printing method and hybrid printing machine

A hurdle board assembly for separating sheet piles in a delivery of a sheet-fed printing machine includes a hurdle board. A plurality of spacer elements are connected to the hurdle board at locations in the vicinity of the border of one surface of the hurdle board. The spacer elements are respectively movable between a condition wherein they are retracted into the hurdle board and a condition wherein they extend vertically from the hurdle board. Respective prestressing devices are provided for prestressing the spacer elements, respectively, in a direction in the condition wherein the spacer elements, respectively, extend from the hurdle board. Respective locking devices are provided for securing the spacer elements, respectively, in the retracted condition. The locking devices are deactivatable from a side of the hurdle board so as to release the spacer elements.

Hurdle or rack board for sheet-fed printing machines

The sheet-stacking apparatus stacks sheets arriving in a stream of successive sheets. A stop face configuration is pivotable, about a geometric pivot axis located at a predetermined level and oriented crosswise to the stream, between a working position wherein it stops the sheets and a position that is pivoted away from it. The system enables accurate, straight-edged stacks, both in the successive buildup of one stack and in the formation of a succeeding stack without interrupting the stream of sheets. In a first variant a carrier profile is provided, which is located above the pivot axis in the working position and past which, in the working position, stop face segments protrude downward in comblike fashion. In a second variant, a carrier profile with auxiliary stops protruding past it is disposed, adjustable in height, below the pivot axis.

Apparatus for forming stacks

Device for the transport and deposit of sheets in a stacking region of a

A guard for contrarotatable cylinders of a printing press includes a finger protective element disposable adjacent cylindrical surfaces of the cylinder for guarding a nip between the cylinders in vicinity of a danger zone, the finger protective element being in fixed position and having at least one switch sensor disposed in the region of the cylinder nip.

Guard on contrarotatable cylinders of a printing press

Method for form-processing paper in a printing press by at least one processing tool and a computer includes converting digital data representing desired processing geometries into signals in the computer, and controlling the at least one processing tool with the signals so as to obtain the processing geometries; and apparatus for performing the method.

Method and apparatus for form-processing paper in a printing press

Device for producing individual stacks of sheets

A device for uniting a residue sheet pile and a main sheet pile into an aggregate sheet pile wherein a lowermost sheet of the residue sheet pile rests upon and uppermost sheet of the main sheet pile includes a displacement device having a drive; and a rake displaceable by the displacement device along a displacement path in a pile slide-in direction from a first to a second position and from the second to the first position in a direction opposite to the slide-in direction. The residue sheet pile is seated with its undermost sheet on the rake in the second position thereof, and the main sheet pile is in engagement with the rake from below with the uppermost sheet thereof, in one phase of the pile uniting process. The rake has traversed the displacement path in the direction from the second to the first position thereof, in a final phase of the pile uniting process. The rake is formed of lattice bars having respective free ends extending in the slide-in-direction, and the free bar ends have a cross-section reducing in height substantially constantly in the slide-in direction; the reduction in cross section of the free ends of the lattice bars being such that when the residue sheet pile becomes seated on the lattice bars, a lateral face of the residue sheet pile extending in the slide-in direction is simultaneously lowered onto a reduced cross section of the lattice bars.

Device for uniting a residue sheet pile and a main sheet pile

The combination of a sheet-processing machine and a transport system for sheet piles includes a device for passing sheets through the sheet-processing machine in a given direction of travel; a pile support assigned to the machine; a device for carrying the pile support; and a device for raising and lowering the carrying device together with the pile support to upper and lower levels, respectively; the carrying device including a first transport device for moving the pile support horizontally with respect to the carrying device; second transport device disposed on both sides of the sheet processing machine and assigned to the first transport device for moving the pile support horizontally; the first transport device of the carrying device in the lower-level position of the carrying device and the second transport device assigned to the first transport device forming a conveyor section composed of aligned conveyor section parts for transporting a pile support in a transport direction transverse to the given direction of travel; the pile support being formed as a flat pallet; and the conveyor section having guidance device comprising first and second guide elements in cooperative engagement directly with the flat pallet for rectilinearly guiding the flat pallet along the conveyor section.

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Eppelheim, Germany

Erich Michael Zahn