Heidelberger Druckmaschinen Ag

Matthias Noell

Stefan Maier

Bernhard Roskosch

Markus Moehringer

Bernhard Buck

Alexander Weber

Martin Riese

Sven Mader

Michael Krueger

Holger Faulhammer

Christopher Berti

Tobias Mueller

Alexander Matern

Helge Grandt

Kai Oskar Mueller

Bernhard Mechler

Juergen Maass

Martin Schnaiter

Peter Mutschler

An apparatus for the printing and radiation treatment of a curved surface of an object, such as a body part, includes a printing unit, preferably an inkjet print head, a radiation unit, preferably a UV dryer, and a movement unit, preferably a robot, either for moving the printing unit and the radiation unit at a working distance along the surface or for moving the object at a working distance along the printing unit and the radiation unit. A shielding unit can be adjusted and/or deformed relative to the printing unit and/or relative to the radiation unit and during the printing. Scattered radiation is shielded and damage to the printing unit is prevented as a result of the special configuration of the shielding unit.

Apparatus for the printing and radiation treatment of a curved surface of an object

An apparatus for printing a curved surface of an object, for example a ball includes a stationary printing unit for printing the object, the printing unit including an inkjet print head producing a print on the object surface in an active region of the print head, a curing unit for curing the print, the curing unit including a radiant heater curing the print in an active region of the radiant heater, a movable holding unit for receiving the object in a receiving region, moving the object from the receiving region into the active region of the print head, moving the object in the active region of the print head during production of the print and moving the object into the active region of the curing unit, and a control unit for controlling the movements of the holding unit, the production of the print and the curing of the print.

Apparatus for printing a curved surface of an object

A method for determining the optimum procedure for a job change on a printing-material processing machine () with at least one control computer. The data of a first machine job is compared to the data of a subsequent machine job using a control computer, and the comparison is used to establish an order of the operations to be carried out during the job change. Also provided is a device for determining the optimum procedure for a job change on a printing-material processing machine () with at least one control computer. The control computer is intended to compare the data of a first machine job to the data of a subsequent machine job, and to use the comparison to establish an order of the operations to be carried out during the job change.

Method and device for optimizing a job change

A method for compensating for a mechanical oscillation which has a frequency spectrum which can be approximately represented by a number of discrete frequency components, at a machine shaft via at least one actuator acting directly or indirectly upon the machine shaft. At least upon one of the discrete frequency components of the mechanical oscillation is superposed by the actuator, independently of the other frequency components, at least one substantially harmonic torque of the same frequency having a specific amplitude and phase in such a manner that the amplitude of the oscillation of the machine shaft at the this frequency is reduced.

Method for compensation for mechanical oscillations in machines

A compensation device () for vibrations of an angle variable in a printing material processing machine () having an associated actuator () which acts on the angle variable, the compensation device () receiving a signal representative of the angle variable characteristic, and the compensation device () generating an output signal for the actuator () is disclosed. The compensation device () has at least one filter () in the form of a transfer function or a sum of transfer functions whose frequency parameters correspond to the vibration frequencies to be compensated, through whose effect the output signal of the compensation device () is obtained from the signal at at least one of the discrete frequencies to be compensated.

Compensation of cylinder vibration in printing material processing machines

Method for compensating for mechanical oscillations in machines

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Weiterstadt, Germany

Matthias Noell