Abstract: A device for printing hollow bodies includes a segmented wheel which can be rotated about a rotational axis. The segmented wheel has multiple segments, one behind the other, on the segmented wheel circumference, each for receiving a respective printing blanket. At least one of the printing blankets, which is arranged on one of the segments, is arranged on the hollow body to be printed in a rolling manner or at least in a rollable manner. Each of the printing blankets is arranged on a plate-shaped metal support. Each plate-shaped metal support is configured to be bendable and forms a metal printing blanket, together with the printing blanket arranged on the support. Each metal printing blanket formed by the respective support, together with the printing blanket arranged on the support, is arranged or can at least be arranged on one of the segments of the segmented wheel in a replaceable manner as a whole.

Abstract: An apparatus is comprised of a plurality of printing units for printing hollow elements. A conveying device conveys the hollow elements to be printed into a printing zone of at least one of the printing units. At least one of the printing units includes a plate cylinder to which a plate replacing mechanism is assigned.

Abstract: A printing unit has a printing form cylinder. A plate changer is arranged in a manner which is allocated to the printing form cylinder. The plate changer has a bearing surface on which a printing form, which is arranged or is to be arranged on the printing form cylinder, can be laid. That bearing surface is arranged such that it can be moved to and fro between at least two defined positions longitudinally with respect to the rotational axis of the printing form cylinder. The printing form is arranged and registered on the bearing surface of the plate changer. At least two edges of a carrier for the relevant printing form, which are arranged at a right angle with respect to each other, are brought into physical contact with register pins which are arranged on the bearing surface of the plate changer.

Abstract: An inking unit of a printing unit and a device for printing on hollow bodies each have a cylindrical lateral surface. The device comprises the inking unit. The inking unit has an anilox roller which receives a printing ink from an ink reservoir and has an inking roller placed against a printing cylinder of the printing unit. A rider roller is arranged axially parallel to the anilox roller in a region between the ink reservoir and the inking roller, that region being located subsequent to the ink reservoir in a direction of rotation of the anilox roller. The ink reservoir interacts with the anilox roller. The rider roller is placed against the anilox roller. The rider roller is rotationally driven by the anilox roller by friction. The inking roller is rotationally driven by the anilox roller by friction. The plate cylinder and the anilox roller are each independently rotationally driven by a motor.

Abstract: A heat accumulator has a heat accumulator structure with at least two accumulator elements through which a medium flows for charging and that thus each forms a hot end and a cold end by temperature layering and having a medium rinse device. In a rinse operation the heat accumulator produces at least one cold medium rinse flow and introduces it into the cold end of at least one of the accumulator elements. The hot medium rinse flow exiting from the hot end of the accumulator element enters the hot end that is in the charged state via at least one rinse path.