It feeds cup on level and adopts corona pre-treatment, mandrel UV curing, so printed pattern is clear and real. Main motor mounted with three-phase frequency conversion speed adjust, timing belt drive, stepless speed regulation, functions steadily without noise. Convenient to adjust quantity of ink and pressure of ink distributing roller, and the ink supply is ideal. When fix forme, locating spring can automatically tighten, and it is easy to load or unload the forme, as well as chromatography. Printing cylinder and forme roller assembled with cantilever are easy to clutch and adjust pressure.