Heidelberger Druckmaschinen Ag

Ulrike Weisbrodt

Bernd Herrmann

Christopher Berti

Jurgen Deschner

Kurt L&ouml;tsch

Arnd Schmidt

A sheet-fed printing machine having a feed system for feeding sheets from a sheet feeder to the sheet-fed printing machine, and an imaging device for setting an image on a printing plate disposed on the plate cylinder are provided. The feed system includes at least one oscillatingly moving pregripper and a drive device for the feed system, the pregripper being uncoupled from the drive device.

Sheet-fed printing machine and method of operation

A printing-machine form cylinder having, in an interior space thereof, a winding reel and an unwinding reel for a printing film drawn around the outer casing surface of the form cylinder, respective ends of the printing film being fastened to the winding reel and the unwinding reel inside the form cylinder, the form cylinder being formed with a cylinder gap extending in the direction of a generatrix of the outer casing surface of the form cylinder, the cylinder gap being defined by cylinder gap edges which are formed on the form cylinder and around which the printing film is guidable into the interior of the form cylinder, includes a cover element closing the form cylinder gap, and at least one pressure roller disposed on the cover element and bearing against the printing film for guiding it out of the interior of the form cylinder over one of the cylinder gap edges.

Growing community of inventors

Ilvesheim, Germany

Ulrike Weisbrodt