Heidelberger Druckmaschinen Ag

Heidelberger Druckmaschinen

Peter T Blaser

Anton Rodi

Dieter Hauck

Nikolaus Spiegel

Bertold Grutzmacher

Hermann Beisel

Hans-Georg Jahn

Karl-Hermann Miltner

Helmut F Jager

Rudolf Hutzenlaub

Michael Kruger

Jurgen Maass

Walter Hofheinz

Robert Muller

Helmut Kipphan

Udo Ganter

Helmut Meyer

Manfred Henn

Wolfgang Pfizenmaier

Marius Stelter

Jurgen Reithofer

Claudius Haas

Renko M&ouml;llers

Andreas Geider

Robert Mu/ Ller

Helmut Ja/ Ger

Walter Stammer

A method of controlling a powder sprayer having a fan jet nozzle configuration in a printing press, includes controlling the fan jet nozzle configuration as a function of operating parameters of the printing press. A printing press having a powder sprayer is also provided.

Method of controlling a powder sprayer and printing press having a powder sprayer

A device for filling with printing ink a respective ink duct of various printing units of a printing press, provided with an ink cartridge reciprocatingly movable on a crossbar above the respective ink duct, includes a container system provided with a plurality of ink cartridges, the container system being mounted so as to be movable along the printing press, a control unit for controlling the container system, and a gripper system disposed in the container system for changing the ink cartridges.

Device for changing ink cartridges in an offset printing press

Printing-plate magazine for printing machine

Device for supplying printing plates to a printing machine

Device for depositing printed sheets on a sheet pile, including at least one pair of mechanical grippers for seizing the printed sheets at a respective leading edge thereof, the gripper pair being movable over the sheet pile and being controllable for releasing the printed sheets at a given instant of time, a pneumatic device for applying varying pressure to defined regions over a depositing surface of the respective printed sheets for decelerating and transporting the sheets against a mechanical stop, and adjusting elements for the grippers and the pneumatic device, also includes a control device including a computer and having an input and an output, the control device being connected via the output thereof to the adjusting elements, an input device for receiving sheet-specific and process-specific data being connected to the control device via the input thereof, the sheet-specific and process-specific data including data regarding two-dimensional mass distribution of the respective printed sheet, the adjusting elements of the pneumatic device being controllable by the control device so as to produce a pressure distribution on the depositing surface of the respective printed sheet which is correlated with the mass distribution of the respective printed sheet.

Device for depositing printed sheets on a sheet pile

Process and device for carrying away printing plates from a printing

A sheet-guiding assembly in a sheet delivery system of a sheet-fed printing press includes a plurality of sheet grippers disposed on at least one endlessly revolving chain of a first gripper system for gripping a leading edge of a sheet, and a plurality of after-grippers disposed on at least one endlessly revolving chain of a second gripper system for gripping a trailing edge of the sheet, the sheet delivery system being extended in length and defining a horizontal transport path for the sheet therethrough, the first and second gripper systems being disposed so as to be adjustable in phase with respect to one another at the extended sheet delivery system, the sheet grippers and the after-grippers being attached to the first and the second gripper systems, respectively, for holding the sheet by the leading and trailing edges thereof, respectively, on the horizontal transport path of the sheet over the length of the sheet delivery system.

Sheet-guiding assembly in a delivery system of a printing press

Clamping and tensioning device for an inwardly bent trailing edge of a flexible printing plate disposed in an axial gap at the circumference of a plate cylinder adjustable in axial spacing and cooperating with a blanket cylinder, the printing plate being fixable at a leading edge thereof on the plate cylinder and being tensionable in circumferential direction on the plate cylinder, includes two clamping bars displaceably supported in the axial gap and forming therebetween a clamping slot for receiving therein an inwardly bent trailing edge of the printing plate, the two clamping bars extending axially in the gap within the cross-sectional contour of the plate cylinder and being loadable by reversible opposing clamping forces as well as by reversible tensioning forces in common in tensioning direction of the printing plate, and being respectively braced against the plate cylinder, the two clamping bars being formed with radially outer edges, the clamping and tensioning device being radially displaceably disposed in the axial gap of the plate cylinder, and a device for applying drive forces to the clamping and tensioning device for displacing the clamping and tensioning device with the radially outer edges of the two clamping bars radially outwardly at least to the cross-sectional circumferential contour of the plate cylinder, with the clamped bend of the trailing edge of the printing plate being displaceable back within the contour of the plate cylinder.

Clamping and tensioning device for a printing plate in a printing machine

Sheet-fed offset printing machine for automated changing of a printing plate having a plate cylinder for carrying a printing plate, the plate cylinder being formed with a gap extending in axial direction thereof, a blanket cylinder formed with a gap extending in axial direction thereof disposed in cooperative engagement with the plate cylinder, and a clamping device disposed in the plate-cylinder gap and including a pair of movably disposed clamping rails defining therebetween a clamping slot located within the cross-sectional contour of the blanket cylinder, includes an insertion device for inserting, into the clamping slot defined by the clamping rails, a bent edge of a printing plate disposed on the plate cylinder, the bent edge being located at a trailing end of the printing plate, the insertion device being disposed in the gap formed in the blanket cylinder and having a thrust body formed with a thrust surface movable radially out of the cross-sectional contour of the blanket cylinder against the trailing end of the printing plate on the plate cylinder.

Sheet-fed offset printing machine equipped for automated changing of

An installation for supplying pressurized gas to pressure medium-actuated systems of a printing machine is disclosed. The installation comprises at least one compressor; a plurality of pressure tanks; and a plurality of sensors for measuring a system pressure, each of the pressure medium-actuated systems of the printing machine having at least one of the pressure tanks and one of the sensors associated therewith; pressure pick-off connections fluidically communicating with the pressure tanks; a pressure medium distribution and feed device for connecting an input side of the pressure tanks to the at least one compressor; the pressure medium distribution and feed device having actuators; and an electrical control apparatus controlling the actuators and the at least one compressor, the control apparatus being connected with the sensors and with the machine control of the printing machine.

Installation for supplying pressurized gas to pressure-medium actuated

An auxiliary-pile carrier in a pile lift of a sheet-processing machine is disclosed. The pile lift has a main-pile lifting unit and an auxiliary-pile lifting unit. The auxiliary pile is supported on a pile board having grooves formed in an upper surface thereof. The auxiliary pile carrier comprises auxiliary-pile carrier elements for carrying an auxiliary pile, the carrier elements each having a free end; forward cross-members for supporting the free end of each of the carrier elements; rear cross-members for supporting the carrier elements; the carrier elements are configured so as to allow a rod-like insertion thereof in the grooves formed in the upper surface of the pile board carrying the auxiliary pile, such that the carrier elements are aligned parallel to the grooves; the carrier elements are in the form of chains each having a plurality of links; the links are configured such that the chains are non-flexible in one direction beyond a substantially straight alignment of the links; the rear cross-member is a rotatable shaft with chain wheels rigidly disposed thereon; the chain wheels mesh with the chains and drive the chains.

Auxiliary-pile carrier for a lifting device for a pile of sheets

A device for movably positioning in a plurality of positions a magazine for automatically changing printing plates in a printing machine for changing the printing plate of the plate cylinder, replacing the printing plates of the magazine, servicing the printing machine and normal operation, includes a device for mounting the magazine, including a vertical guide wherein the magazine is displaceable, and a horizontal shaft about which the magazine is swivelable, and drive devices for displacing and swiveling the magazine.

Device for positioning a magazine for automatically changing printing

An electrical machine includes a motor having a motor housing and a stator and a rotor received in the housing, and a device for detecting rotor position and rotational speed disposed outside the motor housing on a motor shaft carrying the rotor, the device being fixed to the motor housing.

Electrical machine with device for detecting rotor position and

An assembly for controlling individual positioning elements in a delivery region of a sheet-fed printing machine, including at least one computer, at least one input device connected to the computer for inputting therein characteristic data specific to a sheet and/or to the printing machine, the computer having devices for further processing the characteristic data, and a control device operatively connected to the computer and having individual positioning elements for causing a format-dependent adjustment in accordance with the inputted characteristic data, the computer having devices for calculating, from the characteristic data, energy of the sheet oncoming to the delivery region and, in accordance with the calculated energy value, also for calculating an actuating value for at least one individual positioning element in the delivery region so that energy withdrawal by the individual positioning element is substantially equal to the energy of the oncoming sheet in the delivery region, the control device having devices for actuating the individual positioning element in accordance with the calculated value; and method of operation.

Assembly and method for controlling individual positioning elements in a

A method of determining the rotational speed of a three-phase brushless DC-motor, which comprises scanning at least one signal trace disposed on a revolving rotor of a three-phase brushless DC-motor by means of three sensors, each emitting a signal having two possible signal states, the signal trace and the sensors being of such construction and arrangement that eight values are realized by a logical combination of the two possible signal states, respectively, of the three sensors; detecting the rotor position with six of the values; and determining the rotational speed with the other two values.

Growing community of inventors

Dielheim, Germany

Peter T Blaser