Man Roland Druckmaschinen Ag

Jurgen Scholzig

Ulrich Jung

Thomas Walther

Uwe Puschel

Reinhold Guba

Ruth Kremer

Hans-Georg Eitel

The invention relates to a sheet-guiding device in a printing machine. The object of the invention is to provide such a sheet-guiding device which in a printing/varnishing unit that is not involved in the printing/varnishing process, permits the smear-free passage of the printing material in a printing/varnishing nip. This is achieved in that on the blanket/plate cylinderthere is arranged a printing plate with an ink/varnish-repellent surface coating, it being possible for the blanket/plate cylinderto be driven at the machine speed, and the sheet-carrying cylinderconveying the printed or varnished printing material.

Sheet-guiding device for a printing machine

Temperature control of the coating medium is performed to influence the processability of coating media in an applicator system. In order to operate without losing efficiency, devices acting directly from the inside or the outside for heat supply or dissipation are connected to the elements guiding the coating medium. The temperature of the coating medium is influenced by measuring the temperature within the coating medium and, if necessary, at the elements guiding the coating medium.

Device for the temperature equalisation of coating media

A coating system for supplying a coating medium to sheet material in a printing press. The coating system includes a tempering system operable for influencing the temperature of both a coating medium processed through the applicator system and rinsing mediums supplied to the applicator system for cleaning the system. The tempering system includes and intermediate container connected to the metering system of the applicator system, a first storage container connected to the intermediate container for containing a stored quantity of coating medium, and a second storage or discharge container connected to the intermediate container for a rinsing medium. The intermediate container includes a heat exchanger such that upon selected connection of either the first or second storage containers to the intermediate container, the cleaning medium or the rinsing medium can be individually tempered for optimum processing.

Device for tempering coatings

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

The invention relates to a sheet-fed rotary printing machine with printing units for multicolor printing and at least one coating unit. An object of the invention is to provide stable quality during the coating process and to reduce contamination of coating fluids. This is achieved by providing at least one coating unit being arranged downstream of the printing units, the coating unit including a cleaning system. More specifically, each of the coating units has a rotatable applicator roller, a metering system for applying coating fluid to the applicator roller, and a cleaning wiper system which is movable into and out of contact with the applicator roller. The cleaning wiper is arranged upstream of the metering system relative to a direction of rotation of the applicator roller.

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Mainz-Finthen, Germany

Jurgen Scholzig