| 摘要 |
PURPOSE:To improve an operation rate by moving a marking-off and for marking-off operation, sucking and conveying printing plates after the marking- off operation, one by one, by a suction board provided to a plate discharge arm, and releasing printing plates from being sucked and stacking them successively and automatically. CONSTITUTION:When plural printing plates 11 are set and a start switch is turned on, the marking-off head 18 moves on a marking-off table 2 according to input data to mark the uppermost printing plate 11 among the stacked print ing plates with register mark. When the marking-off operation is completed, the marking off heat 18 returns its origin so that it does not disturb plate dis charging operation, and then a cylinder unit 23 operates to let the suction board 33 abuts on the surface of the uppermost marked-off printing plate 11 and suck it. Air is sent in between the uppermost printing plate 11 and a printing plate 11 right below it through an air injection port 35 to separate the upper most printing plate 11 from the printing plate 11 right below it. The plate discharging arm 9 is moved toward a discharging table 3 and the marked-off printing plate is stood against a slanting surface 3a. Consequently, the efficiency of the marking-off operation is improved greatly. |
