| 摘要 |
PROBLEM TO BE SOLVED: To obtain a printing plate in which a foreign matter such as a dust or the like is not adhered and which is worked in a desired size. SOLUTION: An entirety from a web feeding unit 14 to a stacking unit 66 is covered with a casing 80. A plurality of sub-ducts 82 are connected along a conveying direction to a top plate 80A of the casing 80, and are connected to a filter 88 and a fan 90 via a branch 84 and a main duct 86. Cleaned air through the filter 88 from the sub-duct 82 is blown into the casing 80, and exhausted to an exterior from an exhaust port 94. Contaminated air containing the dust or the like is not invaded from the port 94 into the casing 80, and hence a CTP press plate 45 of a high quality in which no foreign matter such as the dust or the like is adhered can be obtained. There is a case in which a dust occurs in the case of cutting a metal web 20, but since the dust is exhausted from the lower exhaust port 94 along with an air flow in the casing, the dust is not adhered to the web 20 and the press plate 45 after cutting. |
