Heidelberger Druckmaschinen Ag

Michael Pritschow

Peter Hachmann

Thomas Schmidt

Peter Thoma

Michael Gieser

Georg Roessler

Kai Albrecht

Rolf Mueller

Ulrich Grimm

Kai Oskar Mueller

Andreas Wagner

Reinhard Janzer

Georg R&ouml;ssler

Stefan Weil

Timo Erben

Manfred Gaeng

A digital printing machine includes a first cylinder for transporting sheets, a second cylinder for transferring the sheets directly to the first cylinder, a third cylinder for transferring the sheets directly to the second cylinder, and at least one inkjet print head directed towards the first cylinder for printing on the sheets disposed thereon. At least one first sensor measures the temperature of the first cylinder, a second sensor measures the temperature of the sheets while being transported by the second cylinder or by the third cylinder, and at least one temperature control device controls the temperature of the sheets prior to their transfer to the first cylinder. A control element adapts the temperature of the sheets to the temperature of the first cylinder. The first sensor, the second sensor and the temperature control device are connected to the control element.

Digital printing machine with a temperature control device for sheets

A device for monitoring safety-relevant processes in actuating/drive elements in machines having at least one operation control for safety-relevant and other than safety-relevant processes, at least one safety monitoring control, at least one safety input/output device and a redundantly constructed input/output system for safety-relevant processes, includes at least one field bus system connecting the operation control, the at least one safety input/output device and the at least one safety monitoring control to one another, at least one of the safety input/output device and the safety monitoring control being disposed in a distributed manner on an actuating/drive element for, respectively, initiating and performing a safety-relevant process; and a method of operating the device.

Device for monitoring safety-relevant processes in machines

A method and a device for starting a machine, in particular, a printing press, using a sensor or sensor field which emits a start signal during the approach of a part of the body of a machine operator. According to the method, the machine is automatically started if the start signal appears twice consecutively and if the following additional conditions, automatically checked by a machine controller, are met: No start signal is present within a first predefined time period following the instant of the first appearance of the start signal in a predefined time interval, and the start signal reappears within a second predefined time period following the first predefined time period. The device includes a proximity- or touch-sensitive operating surface, which has a first partial surface having the function of a machine starter and second partial surface, which blocks the function of the first partial surface for a predefined period of time in response to proximity or contact.

Method and device for starting a machine

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Idar-Oberstein, Germany

Michael Pritschow