Abstract: A flexographic printing unit is provided for a sheet along a printing line, including a plurality of printing assemblies, each including a printing roller apt to include a printing block, automatic and programmable movement apparatus for the printing rollers, apt to distance at least one of the printing rollers from the printing line during the printing procedure, so that the printing roller does not print the sheet, wherein each of the printing assemblies includes a structure fixed to the floor, at least one frame, which is movable with respect to the structure fixed to the floor, including at least one printing roller and apt to be moved by the displacement apparatus and damping apparatus arranged between the frame and a fixed point so as to damp the movement of the frame.
Abstract: Provided is a printing machine including printing means configured for printing on at least a portion of the surface of a board arranged along a printing area. The printing machine also includes a conveyor means configured to convey the board along a feed path and to supply and free the printing area. The conveyor means may include at least one conveyor belt which occupies at least a portion of the printing area, having a breathable surface layer and suction means configured to draw in air through the surface layer so as to define a suction surface configured to hold the board in place and arranged in proximity to the printing surface. The conveyer means may also include a transfer means configured to move the suction surface along the feed path with respect to the printing area.