Devices for aligning magnetic or magnetizable particles, machine, and method for producing optically variable image elements

A device for aligning one of magnetic and magnetizable particles that are contained in a coating medium that is applied to one side of one of a web-format and a sheet-format substrate comprising:

• a magnetic cylinder, which is arranged in a transport path of the substrate to be conveyed and which magnetic cylinder has, in a region of an outer circumference of the magnetic cylinder, a plurality of magnetic devices that induce a magnetic field;
• wherein at least some of the magnetic devices each comprise a magnet that is rotatable by an associated motor;
• wherein the magnetic cylinder is arranged rotatably in frame walls of a frame;
• wherein at least one transducer is provided for contactless transmission of one of electric energy and of control signals from an outside of the magnetic cylinder one of into and onto the magnetic cylinder, the transducer comprising a first transducer part that is fixed to the frame and a second transducer part that is fixed to the magnetic cylinder during operation;
• wherein a bus system is provided for the contactless transmission of signals to the second transducer part that is fixed to the magnetic cylinder;
• and
• one of wherein the second transducer part, that is fixed to the magnetic cylinder during operation, is arranged on a shaft segment that remains in the frame when the magnetic cylinder is removed from the frame, and, that, for operation, the shaft segment can be connected for conjoint rotation to a cylinder journal of the magnetic cylinder, and wherein the first transducer part that is fixed to the frame is arranged, at least Partially, in a recess in the frame wall such that the first transducer part at least dips into a plane of the frame on an interior side of the frame.