| 摘要 |
PURPOSE:To enable the marking of a date or the like, by mounting a laser oscillator, a reflector and a laser blocking plate. CONSTITUTION:When the carton 2 carried by a conveyor 1 is located at a predetermined position, a laser oscillator 5 starts operation to oscillate laser L and a fluid pressure cylinder 7 is subsequently operated to move a movable reflector 9 from left to right. Hereupon, the laser L downwardly oscillated from the laser oscillator 5 is directionally changed to a left direction by a fixed reflector 10 and subsequently changed to a downward direction by the movable reflector 9 and moved while passing a series of signals 15, 17, 19 displayed on a laser blocking plate 11. As a result, the special ink applied to the top surface of the carton reacts to display a series of signal 15, 17, 19. |
