apparatus for the automatic centering of the plates on cars flessografiche and tabloid with a centering process which does not commit the printing

摘要

an apparatus for automatically centering the plates without any intervention in the process of printing machines flessografiche and magazine includes a reader optical infrarednote to note the alignment with the light beam, to an appropriate sign of reference place on the outskirts of each cylinder door plates.in the case of a magazine or flessografica drum station, or directly on a belt by the material.among the groups, and the rollers press against - crazy for a printing machine cylinder independent.while in the second case, the optical reader is fixed, and put on the outside of the belt.in the first case, it is edited in solidarity within the drum station with his light rays that pass through a hole drilled on the outer periphery of the drum.in addition, preferably elastic media for block, in correspondence to the respective support sled, the cylinder door plates.to ensure the correct register transverse as well as longitudinal.