printer slotter machinery : The corrugated sheet processing apparatus of the present invention is disposed on the downstream side of the first die cutter in the conveying direction of the corrugated sheet, die cutter for punching the conveyed corrugated sheet, and the first die cutter B second die cutter that punches the processed corrugated cardboard sheet, and the die cylinders of the first die cutter and the second die cutter are arranged close to and away from each other along the rotation axis direction of the die cylinder. first cutter mounting portion and a second cutter mounting portion provided, the first cutter mounting portion being detachably mounted on the first cutter mounting portion and in a circumferential direction of the die cylinder; A first cutter and a second cutter configured to be close to and away from each other, wherein the second cutter mounting portion is the second cutter mounting portion. It has a third cutter and a fourth cutter that are detachably mounted and can be moved close to and from each other along the circumferential direction of the die cylinder, and are formed on the corrugated cardboard sheet by the first cutter. The first cutting edge and the third cutting edge formed on the cardboard sheet by the third cutter are symmetrical with respect to the center line of the cardboard sheet along the transport direction, and the second cutter The second cutting edge formed on the cardboard sheet and the fourth cutting edge formed on the cardboard sheet by the fourth cutter are symmetric with respect to the center line.
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