Abstract: A printing unit arrangement in a web-fed rotary printing press includes at least one printing unit 2a having a first and second plate cylinder 4, 6 and associated first and second blanket cylinders 8, 10 which are mechanically coupled via meshing gear wheels and which are commonly driven by one drive motor 12. A second printing unit of the printing unit arrangement includes a first and second plate cylinder 24, 26 and associated first and second blanket cylinders 28, 30. The first plate cylinder 24 and the first and second blanket cylinders 28, 30 are mechanically coupled via meshing gear wheels and are commonly driven by a first drive motor 42. The second plate cylinder 26 is individually driven by a second drive motor 46, and is engageable and disengageable from the associated second blanket cylinder 30 while the printing press is in operation, in order to perform flying edition changes or changes of a spot color.

Abstract: A tucking device for tucking a printing plate into a gap of a plate cylinder includes a tucker bar having a tucking surface and at least one magnet for creating a repulsive magnetic force at the tucking surface. An actuator connected to the tucker bar is used for moving the tucker bar to tuck the printing plate into the gap.

Abstract: A printing unit arrangement in a web-fed rotary printing press includes at least one printing unit 2a having a first and second plate cylinder 4, 6 and associated first and second blanket cylinders 8, 10 which are mechanically coupled via meshing gear wheels and which are commonly driven by one drive motor 12. A second printing unit of the printing unit arrangement includes a first and second plate cylinder 24, 26 and associated first and second blanket cylinders 28, 30. The first plate cylinder 24 and the first and second blanket cylinders 28, 30 are mechanically coupled via meshing gear wheels and are commonly driven by a first drive motor 42. The second plate cylinder 26 is individually driven by a second drive motor 46, and is engageable and disengageable from de associated second blanket cylinder 30 while the printing press is in operation, in order to perform flying edition changes or changes of a spot color.

Abstract: A tucking device for tucking a printing plate into a gap of a plate cylinder includes a tucker bar having a tucking surface and at least one magnet for creating a repulsive magnetic force at the tucking surface. An actuator connected to the tucker bar is used for moving the tucker bar to tuck the printing plate into the gap.

Abstract: A tucking device for tucking a printing plate into a gap of a plate cylinder includes a tucker bar having a tucking surface and at least one magnet for creating a repulsive magnetic force at the tucking surface. An actuator connected to the tucker bar is used for moving the tucker bar to tuck the printing plate into the gap.

Abstract: A plate cylinder comprising a cylinder body having at least one external slot extending axially with respect to the cylinder body, and at least one register pin slidable by an external registration device within the slot. Also provided is an external registration device comprising a base for attaching to a periphery of a plate cylinder, and a pin pusher interacting with a register pin in a slot of the plate cylinder, the pin pusher being axially movable relative to the base. A method is provided for registering plates on a plate cylinder comprising the steps of placing an external registration device on a plate cylinder having at least one register pin, and moving the register pin axially with the external registration device.

Abstract: A printing sleeve removal device includes a first jaw arm and a second jaw arm movable with respect to the second jaw arm, the first and second jaw arms having ends forming a jaw to engage a printing sleeve. Also disclosed is a method for removing a printing sleeve comprising engaging a printing sleeve on a printing cylinder with a first jaw arm and a second jaw arm and moving the printing sleeve via the first and second jaw arms so as to slide the printing sleeve axially with respect to the printing cylinder.

Abstract: A printing unit arrangement in a web-fed rotary printing press includes at least one printing unit 2a having a first and second plate cylinder 4, 6 and associated first and second blanket cylinders 8, 10 which are mechanically coupled via meshing gear wheels and which are commonly driven by one drive motor 12. A second printing unit of the printing unit arrangement includes a first and second plate cylinder 24, 26 and associated first and second blanket cylinders 28, 30. The first plate cylinder 24 and the first and second blanket cylinders 28, 30 are mechanically coupled via meshing gear wheels and are commonly driven by a first drive motor 42. The second plate cylinder 26 is individually driven by a second drive motor 46, and is engageable and disengageable from de associated second blanket cylinder 30 while the printing press is in operation, in order to perform flying edition changes or changes of a spot color.

Abstract: A printing unit arrangement in a web-fed rotary printing press includes at least one printing unit 2a having a first and second plate cylinder 4, 6 and associated first and second blanket cylinders 8, 10 which are mechanically coupled via meshing gear wheels and which are commonly driven by one drive motor 12. A second printing unit of the printing unit arrangement includes a first and second plate cylinder 24, 26 and associated first and second blanket cylinders 28, 30. The first plate cylinder 24 and the first and second blanket cylinders 28, 30 are mechanically coupled via meshing gear wheels and are commonly driven by a first drive motor 42. The second plate cylinder 26 is individually driven by a second drive motor 46, and is engageable and disengageable from the associated second blanket cylinder 30 while the printing press is in operation, in order to perform flying edition changes or changes of a spot color.