摘要:
A mandrel (10) for use in a printing apparatus. The mandrel comprises a substantially cylindrical mandrel shaft (12) and plastic expansion rings (14) that are slidably and coaxially mounted on the mandrel shaft. The mandrel also includes a locking assembly including a fixed stop ring (18) and a single locking ring (20) that is axially movably mounted on the mandrel shaft. The expansion rings are positioned between the stop ring and the locking ring. In the unlocked position of the locking ring the expansion rings are in a released state in which the axial compression and the radial expansion of the expansion rings are smaller than in a locked position of the locking ring. A printing cylinder sleeve (28) can be fixedly connected to the mandrel by bringing the expansion rings in the radially expanded state. When the printing cylinder sleeve has to be exchanged, this is feasible when the expansion rings are in the released state.
摘要:
A mandrel for use in a printing apparatus. The mandrel comprises a substantially cylindrical mandrel shaft and plastic expansion rings that are slidably and coaxially mounted on the mandrel shaft. The mandrel also includes a locking assembly including a fixed stop ring and a single locking ring that is axially movably mounted on the mandrel shaft. The expansion rings are positioned between the stop ring and the locking ring. In the unlocked position of the locking ring the expansion rings are in a released state in which the axial compression and the radial expansion of the expansion rings are smaller than in a locked position of the locking ring. A printing cylinder sleeve can be fixedly connected to the mandrel by bringing the expansion rings in the radially expanded state. When the printing cylinder sleeve has to be exchanged, this is feasible when the expansion rings are in the released state.
摘要:
The invention relates to devices and methods for raising and/or lowering a lift by means of a pressure device comprising a roller. The roller is arranged on a cross-beam in such a manner that the roller can be selectively placed on and/or taken a cylinder or a lift arranged on the cylinder by a drive. The invention is characterised in that the pressure device or the cross-beam supporting the roller can be displaced together in such a manner that the distance of the roller from the cylinder can be selectively increased.
摘要:
In a multi-layer rubber blanket intended for a rubber blanket cylinder and joined at its underside to a dimensionally stable support plate, the ends of the rubber blanket are to be insensitive to mechanical and chemical cleaning. This is achieved according to the invention by sealing the frontal faces of the layers situated underneath the covering layer of the rubber blanket at least at one end of the rubber blanket.
摘要:
Ein Werkzeugzylinder, der insbesondere als ein mit einem Gegendruckelement (300) zusammenwirkender Arbeitszylinder einer Präge- oder Druckmaschine (100) verwendet werden kann, hat einen Hülsenträger (210) und eine an dem Hülsenträger lösbar befestigbare, auswechselbare Werkzeughülse (250). Der Hülsenträger (210) weist ein Trägerelement (220) auf, welches an einem ersten axialen Endabschnitt (212) ein erstes Endstück (230) und an einem zweiten axialen Endabschnitt ein zweites Endstück (240) trägt. Die Werkzeughülse ist im montierten Zu- stand des Werkzeugzylinders zwischen den Endstücken (230, 240) eingespannt und in einem Bereich zwischen den Endstücken existiert zwischen dem Trägerelement und der Werkzeughülse ein radialer Abstand.