Heidelberger Druckmaschinen Ag

Heidelberger Druckmaschinen

Weitmann & Konrad Gmbh & Co. Kg

Claudius Haas

Marius Stelter

Detlev Berlingen

Peter Hachmann

Peter T Blaser

Udo Ganter

Frank Gunschera

Markus Moehringer

Reiner Haas

Bernd Herrmann

Rainer Haas

Herbert Ackermann

Edmund Klein

Peter Foerch

Christoph Ruppaner

Uwe Angst

Steffen Siegemund

Reiner Goetz

Ulrich Fellenberg

Jürgen Zeltner

Nicolas Martin

Bettina Remarque

Markus Leva

Andreas Boettger

Jürgen Ehrhard

Sebastian Wilhelm

Bernhard Kaufmann

Peter Theobald Blaser

A sheet-fed printing machine contains a printing unit, a drier, and a sheet handling device for transporting or guiding print sheets. The sheet handling device has an opening disposed downstream of the drier in the direction of transport. A humidification device for rehumidifying the print sheets is disposed in such a way that it rehumidifies the print sheets through the opening. The sheet handling device may contain a guide plate or several guide plates.

Sheet-fed printing machine with a humidification device

A powdering device for a printing press includes a metering roller and a manifold. A plurality of injectors are provided downstream of the manifold in a conveying direction of the powder. The powdering device is operable in accordance with a method in which a total powder stream is subdivided into partial powder streams that are subsequently separately mixed with compressed air to create powder/air streams.

Powdering device for a printing press and method for operating the powdering device

An apparatus for dusting printed sheets with powder contains at least one powder nozzle, an actuating element which is mounted such that it can be adjusted into a position, in which the actuating element is situated in the jet path of the powder nozzle and the powder bounces off the actuating element, and an extraction device for extracting the powder which has bounced off the actuating element. An air-conducting connection exists permanently between the powder nozzle and the surroundings of the apparatus.

Apparatus for dusting printed sheets with powder

A method for applying powder to a printed sheet includes ejecting air flows from a nozzle bar. The air flows are set in such a way that the air flows which are ejected per meter length of the nozzle bar produce a resultant force acting on the printed sheet of from 0.5 newtons to 16 newtons. A printing press for carrying out the method is also provided.

Method for applying powder to a printed sheet and printing press for carrying out the method

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

The invention concerns a spray nozzle for a powder duster for dusting freshly printed products with a connection for a tube for supplying a powder-air mixture, a distribution chamber and at least two nozzle channels which branch off from the distribution chamber like a fan, wherein the opening angle of the outer nozzle channels limiting the fan subtends an angular range of 5&#xb0; to 20&#xb0;, in particular an angular range of 8&#xb0; to 15&#xb0;, and preferably 12&#xb0;. The invention also concerns a spray bar with spray nozzles of this type, a powder duster comprising spray nozzles of this type, and a method for dusting freshly printed products.

Spray nozzle and method for dusting freshly printed products

A sheet-processing rotary printing press includes a sheet guiding device over which sheets are to be pulled in a processing direction. The guiding device has a stationary first guide surface and a withdrawable second guide surface. The withdrawable second guide surface follows the stationary first guide surface in the processing direction, and forms a pocket with the first guide surface. The guiding device further includes a molded part received in the pocket and forming a third guide surface for bridging over the pocket.

Sheet-processing rotary printing press with a sheet guiding device

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Nussloch, Germany

Claudius Haas