Man Roland Druckmaschinen Ag

Man Roland Druckmaschinen

Manroland Ag

Manroland Sheetfed Gmbh

Edgar Werber

Peter Hummel

Valentin Gensheimer

Harald Bayer

Albrecht Volz

Joachim Blumor

Holger Wiese

Achim Stoffler

Jurgen Wenzel

Frank Seidel

Christian Schlegel

Marc Hinz

Michael Dotzert

Hubert Zschetzsche

Manfred Straub

Rainer Gebhardt

Hans-Georg Eitel

Olga Martin

Hans-Bernd Jäger

Stefan Vogel

Thomas Klassert

Lothar Kühlmeyer

Hans-Bernd JÄGER

Hubert Hofmann

Stefan Klein

Stefan Schwarz

Pierre Prost

An undershot inking unit and associated method are disclosed. The undershot inking unit includes an ink fountain roller that is controlled independently of the printing speed of the printing machine, and in which the rotational contact angle of the distributor roller on the ink fountain roller is varied according to the printing unit speed. The method comprises controlling the rotational speed of the ink fountain roller independently of the printing speed of the printing machine; and varying the rotational contact angle of the intermittent ductor roller on the ink fountain roller according to the printing speed of the printing machine. In a preferred embodiment, the apparatus includes two coaxial cams rotatably adjustable with respect to each other. Each cam includes a predominant circumferential contour and a subordinate circumferential contour. By adjusting the relative rotational position of the cams, the rotational contact angle of the ductor roller on the ink foundation roller is varied according to the printing unit speed.

Method and apparatus for regulating ink distribution in an undershot

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Offenbach, Germany

Edgar Werber