Man Roland Druckmaschinen Ag

Reinhold Guba

Helmut Emrich

Jurgen Scholzig

Joachim Olek

Herbert Schoppe

A method and apparatus for more simply and efficiently coupling and decoupling a cylinder in a printing machine. The coupling and decoupling apparatus includes a bearing bushing ( ) in a fixed bushing ( ). The bearing bushing ( ) carries an axial force loaded spindle ( ) that is axially displaceable within the bushing ( ) between a coupling position in a centering portion ( ) of the cylinder and a decoupling position in which a braking system ( ) is engaged.

Method and device for coupling in/out a cylinder in a printing machine

An apparatus for cleaning the cylinders of the printing units of a printing machine is disclosed. The cleaning apparatus is provided with three subassemblies. Specifically, it includes a cleaning subassembly having at least one washing roller for washing the cylinder to be cleaned. The cleaning apparatus also includes a conveying subassembly for transporting the cleaning subassembly into and out of the printing unit. The conveying subassembly is dimensioned to slide into the service orifice in the frame of the printing unit while supporting the cleaning subassembly. The cleaning apparatus is also provided with an actuating subassembly mounted on the frame of the printing unit for removably receiving the cleaning subassembly and for selectively moving the cleaning subassembly between a first position wherein the cleaning subassembly is disposed on the conveying subassembly within the service orifice, a second position wherein the cleaning subassembly is separated from the conveying subassembly and displaced laterally from the service orifice, and a third position wherein the at least one washing roller of the cleaning subassembly engages the cylinder to be cleaned.

Apparatus for the cleaning of cylinders of a printing machine

A device for transporting sheets within a printing machine in which the sheets are conveyed by gripper carriages which are articulated on endless chains driven by chain wheels. A transfer of the sheets between the gripper carriages and a sheet-guiding cylinder takes place in the region of the chain wheels. The chain wheels, around which the chains are guided do not have a continuous shaft, but are attached to the opposing ends of short stub shafts which are mounted rotatably in the frame side walls of the printing machine. Attached to the other ends of the stub shafts stubs are gear wheels which mesh with gear wheels attached to the two journals of the sheet-guiding cylinder in order to synchronize the chain wheels with the sheet-guiding cylinder. A feed and take-off transport device of this type operates in such a way that a freshly printed sheet or a sheet provided with varnish coating can be transferred to and/or removed from the sheet-guiding cylinder in a smear-free manner.

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Weiterstadt, Germany

Reinhold Guba