Heidelberger Druckmaschinen Ag

Gunther Hofmann

Willi Jeschke

Rudi Junghans

Hermann Beisel

Rudolf Leib

Device for processing a viscous fluid for finishing printing products in a finishing unit of a rotary printing press, the finishing unit having a plurality of rollers suppliable with the fluid at least at one feeding location thereof, and a plurality of cylinders suppliable with the fluid by the plurality of rollers, includes a device for collecting the fluid from the one feeding location thereof, the plurality of rollers including a metering roller engageable with one of the cylinders for feeding the fluid thereto, another roller of the plurality of rollers being in cooperative engagement with the metering roller and with the collecting device for feeding the fluid to the metering roller.

Convertible or shiftable varnish supply on finishing units in rotary

A device for varnishing printed sheets in a printing machine. The varnishing device includes a varnish pan, a varnish dipping roller and a metering roller for transferring varnish onto a varnishing cylinder. The dipping roller and the metering roller have a drive that can be connected to the printing machine drive mechanism by an overrunning clutch. The printing machine also includes an auxiliary motor by which the dipping roller and the metering roller can be driven when the printing machine is at a standstill. A torque transmission device, for driving the dipping roller and the metering roller, is also provided. The torque transmission device is connected between the auxiliary motor and the dipping and metering rollers. The torque transmission device does not include a rigid rotary connection apparatus for driving the dipping roller and the metering roller.

Drive mechanism for a printed sheet varnishing device of a printing

Ink duct for offset of letterpress printing machines with an ink metering unit formed of a plurality of zone-wide metering elements disposed closely adjacent one another and adjustable to zonally varying ink-gap thicknesses, and an ink duct roller forming part of the ink duct, including support and metering regions formed on the metering elements, the support regions being constantly in at least indirect contact under spring pressure with the ink duct roller, each of the metering regions of the respective metering elements extending over the entire respective zone width, the respective metering region, as viewed in rotary direction of the ink duct roller, being disposed downstream from and at such a spacing behind the support regions that ink located between the support and metering regions can spread axially and distribute uniformly over the entire zone width, respectively.

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Walldorf, Germany

Gunther Hofmann