| 摘要 |
PURPOSE:To accelerate the speed of printing work, by mounting a mechanism wherein support mechanisms for supporting a squeezee and a doctor are made reciprocally movable along a guide arm and the falling of the squeezee and the raising of the doctor are performed at one turn-back point thereof while the opposite operation thereto is performed at the other turn-back point thereof. CONSTITUTION:A pair of guide arms 12 are parallelly arranged to the frame 13 provided above a screen plate 9 while support mechanisms 49, 50 of a squeezee 10 and a doctor 11 are provided between said arms 12 in a freely slidable manner and reciprocally moved by a servo motor. In this case, a change-over drive mechanism, such that the squeezee 10 is raised and the doctor 11 is fallen at one turn-back point in said reciprocal movement and the opposite operation thereto is performed at the other turn-back point thereof, is provided and constituted of a cam body 46 moved between two positions along the guide arms 12 and cam followers 84, 85 which are mounted to the support mechanisms 49, 50 and engaged with said cam body 46. |
