| 摘要 |
PURPOSE:To provide a printing device which enables ink-transfer in a thin film in a wide range and reduces irrgularity in printing. CONSTITUTION:By providing a servomotor 29 for driving a table 21 for printing, a direct drive motor 33 for driving a plate cylinder 31 and a direct drive motor 36 for driving an anilox roll 34, respectively the plate cylinder 31, the anilox roll 34 and the table 31 are separately driven. Thus, there is no need for interconnecting each drive unit with gears as conventional in practice, and mechanical vibration caused by backlash and the like is thereby improved, whereby irregularity in printing is reduced. Further, the correction of speed irregularity caused by variations in the diameters of rolls, errors on a design and the like can be made because synchronous control becomes possible by providing a control circuit to the servomotor 29 and the direct drive motors 33, 36 and, as a result, irregularity in printing caused by speed irregularity is reduced. |
