Man Roland Druckmaschinen Ag

Manroland Ag

Manroland Sheetfed Gmbh

Franz-Peter Richter

Peter Hummel

Robert Ortner

Klemens Kemmerer

Ulrich Jung

Rainer Stamme

Harald Bayer

Jürgen Schölzig

Dietmar Stahl

Hans-Dieter HÖHN

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.

Sheet-fed letterpress rotary with printing units for multicolor printing and at least one coating unit

A sheet-conveying drum for use between units in a printing machine is provided with a plurality of gripper bridges arranged substantially circumferentially symmetrically on the drum surface. The gripper bridges hold the paper on the drum and include gripper impact strips that are adjustable substantially radially relative to the drum in order to accommodate printing materials of different thickness. Each gripper impact strip is adjusted by means of a positioning device that is arranged on the drum radially inward of the gripper impact strip and mounted so that it can move axially relative to the drum and cam the gripper impact strip radially. The axial movement of the positioning devices is brought about by two actuating devices which are mounted opposite each other on the side frames of the printing machine. The actuating devices are preferably pneumatic cylinders and are adapted so that when they are extended they periodically engage adapters on the free ends of the positioning devices as the drum rotates. When the extended actuating device engages the adaptor the actuating device cams the positioning devices in the axial direction thereby causing the gripper impact strips to move in the radial direction.

Sheet-conveying drum for printing machines

Growing community of inventors

Fränkisch-Crumbach, Germany

Franz-Peter Richter