Man Roland Druckmaschinen Ag

Dietmar Stahl

Ulrich Jung

Rainer Stamme

Franz-Peter Richter

An apparatus and method for removing and cleaning ink from an ink fountain in a rotary printing press. The ink fountain includes an ink fountain container having a fountain roll disposed adjacent an open side thereof. The apparatus includes a scraping device for forcing ink from the container in the direction of the inking roll, and a metering device disposed between the container and fountain roll which is movable to an open position to form a gap between the fountain roll and container through which ink forced by the scraping device is directed into an underlying catching trough. The container further includes a doctor blade positionable into adjacent relation to the fountain roll for removing ink from the fountain roll during a cleaning operation and directing the removed ink into the catching trough so as to preclude contamination of the downstream roll train of the inking unit.

Method and apparatus for cleaning ink fountain in rotary printing machine

The invention relates to a sheet-fed rotary printing machine with printing units for multi-color printing and with at least one coating unit. The object of the invention is, inter alia, to provide a sheet-fed rotary printing machine of the type described in the introduction, in which at least one coating unit can be used more universally and set-up times are reduced. This is achieved in that the coating unit,is formed from an impression cylinder,, a form cylinder,and a metering system,with a screened applicator roller,. The applicator roller,has a circular segment congruent to the cylinder pit of the form cylinder,, is at least the same size as the form cylinder,and can be imaged as a rough intaglio printing form.

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Obertshausen, Germany

Dietmar Stahl