Heidelberger Druckmaschinen Ag

Nexpress Solutions, Inc.

Carsten Huschle

Martin Reuter

Thomas Wolf

Hans-Peter Hiltwein

Uwe Fischer

Helmut Buck

Frank Pierel

Hans Butterfass

Ulrich Grimm

Michael Rehberg

Andreas Bechtel

Lutz Pfaff

Dirk Naumann

Robert M&uuml;ller

Peter Kettenmann

A contact-less safety device, i.e., a safety device operating without contact has an interface for the transmission of output signals to connectable appliances for signal processing. The output signals from the individual sensors of the safety device operating without contact can be transmitted separately via the interface.

Light barrier having separate output signals

A control system for a printing machine and a safety device for scanning and displaying a hazardous area that cannot be looked at on a printing machine and method thereof includes permitting the printing machine to be started up only after an acknowledgement through a control device that the hazardous area displayed has been examined by an operator.

Safety device and method for monitoring a hazardous area that cannot be looked at in a printing machine

The position of sheets in a printing press is measured. A problem in transporting sheets through the printing press is how to guarantee the correct orientation and lay of the sheets, which must be guaranteed particularly in the printing operation. There is provided a device for precisely determining and correcting the positions of sheets in printing presses. Margin regions of a sheet are respectively imaged, projection data are transmitted to a computing unit, and the position of the sheet is calculated with the aid of the projection data by way of an image recognition algorithm. Furthermore, the computed positions of the sheet are compared to positions which are stored in the computing unit, and from the comparison, position deviations are computed, which are transmitted to the printing press and corrected by way of a sheet registration device.

Method and device for measuring a position of a passing sheet

A method is proposed for measuring thickness and detecting double and missing sheets during the sheet feed to a sheet-processing machine, such as a sheet-fed printing machine. A corresponding monitoring apparatus has one or more sensing elements above or beneath the sheet stream. The sensing element can be displaced, with an actuating device having an actuating drive, in the direction towards and away from the sheet stream. The actuating drive has at least one piezoelectric actuator or it is formed by the latter.

Monitoring apparatus for the sheet feed to a sheet-processing machine, and method of monitoring the sheet stream structure/the sheet stream

Growing community of inventors

Bretten, Germany

Carsten Huschle