Patent application number | Description | Published |
20080257182 | Web-Fed Rotary Presses Comprising a Modifiable Folding Assembly - A web-fed rotary printing press includes a printing unit which has a specific width for printing a web with six adjacent vertical printed pages in a first newspaper format. A longitudinal cutting device is used to divide the web into three partial webs, each of which having a width corresponding to two of the newspaper pages. A folding assembly includes a group of three fold formers which are located next to each other on a machine plane. The three formers are disposed in the web-fed rotary press in such a that the two distances between the folding planes of two of the formers, which are placed next to each other in pairs, can be modified. | 10-23-2008 |
20090090261 | Inking unit of a rotary press, comprising a film roller - An inking unit of a rotary printing press includes a film roller. The film roller has a structured outer surface that has a Shore D hardness ranging between 80 and 90 and a stochastic surface. The stochastic surface is incorporated into the outer surface of the film roller by peening. | 04-09-2009 |
20090205520 | Drive units of a rotating component of a printing press - A drive unit is provided for a rotating component of a printing press, which rotating component is disposed between spaced lateral frames. A bearing assembly supports the rotatable component so that it is movable in a direction of movement which is perpendicular to the axis of rotation of the rotatable component. A journal of the rotatable component does not penetrate an alignment of the lateral frame in its mounted orientation. The rotatable component is rotatably driven by an independent drive motor. A rotor of the drive motor is joined to the journal of the rotatable component in a torsion-proof, detachable configuration. A bearing assembly for the journal is provided with a movable bearing block that receives the journal of the rotatable component, and which is located on an interior portion of the bearing assembly, relative to the plane of the lateral frame. A stator of the driving motor is rigidly, and removably connected to the movable bearing block. | 08-20-2009 |
20090217832 | Printing Unit and Method for Adjusting a Print-On Position - A printing unit is comprised of at least two cylinders which cooperate with each other in a printing group. At least one of these at least two cylinders is movably mounted so that it can be positioned against the other of the at least two cylinders by the use of at least one actuator, which is preferably configured as a power-controlled actuator. A control device is provided and in which several different preset values, which represent different levels of contact force between the two cylinders, are stored. Such data storage is in accordance with a criterion which concerns machine data and/or consumed material data and/or operational data. This data is usable to position the cylinder by operation of the actuator. | 09-03-2009 |
20090272284 | Assemblies in the printing unit of a rotary press - An assembly in a printing unit of a rotary printing press includes at least one plate cylinder, three ink forme rollers, two vibrator rollers and an ink separator roller. Both of the vibrator rollers are applied directly to the ink separation roller. One of the ink forme rollers is applied to both one of the vibrator rollers and the plate cylinder. The secondary two ink form rollers are applied both to the other vibrator roller and to the plate cylinder. The plate cylinder is covered with several printing formes. An upper ink forme roller is located such that a horizontal line that is tangent to the circumference of that upper ink forme roller is positioned at a vertical decline of at least 50 mm from a horizontal line that is tangent to the circumference of the plate cylinder. | 11-05-2009 |
20100024673 | METHOD FOR OPERATING A PRINTING UNIT HAVING AT LEAST ONE PRESS UNIT, AND A PRESS UNIT FOR CARRYING OUT THE METHOD - A printing unit has at least one press unit having a plate cylinder with at least one printing plate that can be mounted on the plate cylinder and which carries a printing image. The plate cylinder has at least one cylinder channel in which ends of the printing plate can be fixed or positioned. The printing plate has a leading angled end and also has a trailing angled end, as viewed in the direction of rotation of the printing cylinder during operation of the printing press. The printing plate can be secured to the plate cylinder by insertion of the plate leading end into the cylinder channel and by insertion of the plate trailing end into the same, or another cylinder channel. Initially, the plate trailing end is fixed in its associated cylinder channel and the plate cylinder is rotated in a rotational direction counter to a production direction. The leading plate end is then fixed in its associated cylinder channel during continued rotation of the plate cylinder opposite to a production direction. Once the printing plate is secured, the printing cylinder is rotated in its production direction. | 02-04-2010 |
20100101436 | PRINTING UNIT OF A ROTARY PRINTING PRESS AND A METHOD FOR WASHING A DAMPENING UNIT OF A PRINTING UNIT - A printing unit of a rotary printing press includes a forme cylinder. An inking unit interacts with the forme cylinder and has a plurality of inking rolls. A dampening unit also interacts with the forme cylinder and has a plurality of dampening rolls. A washing device interacts with at least one of the inking rolls and dampening rolls for washing the inking unit and/or the dampening unit. The inking unit includes a plurality of ink applicator rolls which can be placed directly onto the forme cylinder during printing operation. The dampening unit has at least one dampening rotation applicator roll that can also be placed directly onto the forme cylinder during printing operations. In a washing position, one of the plurality of ink application rolls and the dampening rotation applicator roll are brought directly into contact with each other. | 04-29-2010 |
20100263564 | PRINTING UNIT HAVING AT LEAST TWO LATERAL FRAME PARTS THE DISTANCE OF WHICH CAN BE CHANGED RELATIVE TO EACH OTHER IN A HORIZONTAL DIRECTION - A printing unit has at least two lateral frame parts. The distance between which can be changed, relative to each other, in a horizontal direction. Each frame part receives a printing group or parts of such a printing group. At least one of the lateral frame parts is displaceably supported for movement between a functional position, in which the lateral frame parts meet and are affixed relative to one another, and an open position in which the lateral frame parts are positioned at a distance from each other. The support of the at least one movable lateral frame part has at least one sliding surface which is made using a composite plastic that is composed of multiple materials. | 10-21-2010 |
20100307355 | PRINTING UNIT COMPRISING AT LEAST TWO SIDE FRAME PARTS WHOSE DISTANCE RELATIVE TO EACH OTHER CAN BE MODIFIED IN A HORIZONTAL DIRECTION - A printing unit is comprised of at least two side frame parts whose distance, relative to each other, can be modified in a horizontal direction. Each printing unit receives at least one printing group or parts of a printing group. At least one of the side frame parts can be moved between a closed functional position, in which the side frames are moved together and are fixed relative to one another, and an open position, in which they are spaced from each other. In order to fix or to secure the side frame parts relative to one another, at lease one closure device is provided. The at least one closure device is comprised of a cylinder that can be used to pretension the side frame parts into the closed functional position. The cylinder carries a piston rod that is adapted to carry out a stroke movement. The closure device is configured as a swivel tensioning element. The piston rod is arranged such that it carries out a pivoting movement about a longitudinal axis of the piston rod, in addition to the stroke movement. The piston rod may also be pivoted about a longitudinal arm of the piston rod, in addition to the stroke movement. | 12-09-2010 |
20120037017 | PRINTING PRESSES HAVING ONE OR MORE PRINTING UNITS EMBODIED AS PRINTING TOWERS FOR DOUBLE-SIDED MULTICOLOR PRINTING, AND DEVICES FOR CONTROLLING THE TEMPERATURE OF COMPONENTS OF ONE OR MORE OF THE PRINTING UNITS - A printing machine, which is configured as a printing tower having a plurality of printing units, is usable for double-sided, multicolor printing. A device that is usable for controlling the temperature of the components of one or more of the printing couples is provided. Each printing unit includes a plurality of printing towers that are disposed vertically one over the other. Each of these printing devices has at least one component that is to be temperature controlled and which has a thermal interaction with a fluid of a secondary circuit by way of an inlet. The secondary circuit can have fluid of a primary circuit entered by a feeding station for controlling the temperature. Components that are to be temperature controlled, and that are part of at least two different printing devices, have thermal interactions with two secondary circuits that are different from each other. A selectively actuable electrical heating appliance is provided in the secondary circuit in addition to the feeding station and at least one of valves and pumps and heating appliances that are associated with the two secondary circuits and different from each other are disposed on a machine front side at different heights or can be fed with fluid from the primary units by feeding stations that are disposed at different heights. | 02-16-2012 |
20120210891 | PRESSURE ADJUSTMENT DEVICE OF A CHAMBERED DOCTOR BLADE SYSTEM - A pressure adjustment device of a chambered doctor blade system of a printing press includes at least one chambered doctor blade, at least one ink chamber having at least one supply line connected to an ink reservoir and having at least one drain line or overflow opening that at least partially forms a return flow path of the medium from the at least one ink chamber to the at least one ink reservoir. At least one pressure release valve is arranged in the one of the drain line or overflow opening. Another pressure release valve is also arranged in the at least one supply line. One of the pressure release valves is configured as a passive pressure release valve. The at least one pressure release valve arranged in the at least one supply line has a line connection to at least one bypass line. That bypass line is arranged to at least partially form a return flow path of the medium from the supply line to the ink reservoir. | 08-23-2012 |