Heidelberger Druckmaschinen Ag

Heidelberger Druckmaschinen

Geoffrey Loftus

Gotthard Schmid

Andreas Detmers

Klaus Sauer

Method of influencing ink-trapping behavior of ink-conducting components of a printing unit in a rotary printing press includes disconnecting at a clutch location an inking-unit drive coming from printing-unit cylinders, directly imaging a printing form on a printing-form cylinder within the rotary printing press, and reestablishing the drive connection between the inking unit and the printing-unit cylinders at the clutch location after completing the direct imaging of the printing form; and device for performing the method.

Method and device for influencing ink-trapping behavior

Wash-up assembly for washing printing units and adjacent regions in a rotary printing press having printing units including a printing-form cylinder and a blanket cylinder cooperating with an impression cylinder, and a wash-up device assigned to each printing unit for washing the outer cylindrical surface of at least one of the respective printing-form cylinder and the respective blanket cylinder thereof, further includes a sucking unit assigned to a respective printing unit in a wedge-shaped nip region between the respective printing-form cylinder and the respective blanket cylinder thereof, the sucking unit having at least one opening directed substantially towards respective outer cylindrical surfaces of the respective printing form and blanket cylinders.

Cleaning assembly for cleaning printing units of a direct imaging rotary

Device for feeding single-sheet material to a cylinder accepting the single-sheet material, with feed channels to which, respectively, at least one friction-roller set is assigned, the friction-roller set being mounted so as to be adjustable between a press-on position and a lift-off position, and being insertable into the feed channels cyclically with a feeding of sheet material, includes at least one swivelable transport member disposed adjacent the feed channels and, located at the feed channels downstream from the swivelable transport member, as viewed in sheet transport direction, sheet-guiding elements for maximizing accuracy of the feeding of the sheet material into sheet-holding elements of a sheet-guiding cylinder.

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Marietta, GA, United States of America

Geoffrey Loftus