| 摘要 |
PROBLEM TO BE SOLVED: To provide a printing plate automatic exposure device with a simple structure at low cost. SOLUTION: In the printing plate automatic exposure device 10, when a plate-feeding guide 20 rises and faces to a punch part 16, a guide plate 70 contacts with a guide roller 74 to guide the plate-feeding guide 20 and to determine the position of the plate-feeding guide 20 in the right-and-left direction. When a plate-feeding guide 20 descends and faces to an exposure part 18, a guide roller 72 contacts with a guide plate 80 to guide the plate-feeding guide 20 and to determine the position of the plate-feeding guide 20 in the right-and-left direction. Deviation of the plate feeding guide 20 in the right-and-left direction when the guide 20 goes up/down can be eliminated by just providing the guide plates 70, 80 and guide rollers 72, 74. Accordingly, a punch part 16 does not require for providing a conventional punch mechanism for forming a notch and the printing plate automatic exposure device 10 can be made at low cost with a simple structure. COPYRIGHT: (C)2004,JPO&NCIPI
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