| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary die cutter which does not produce hairs and burrs, and surely cuts off a workpiece even when the workpiece having a metallic foil, such as the electrode sheet of a lithium ion secondary battery, is cut off. SOLUTION: A die cut roll having a cutting edge projecting from its outer circumferential surface outward in the radial direction and an anvil roll 30 having a smooth outer circumferential surface are arranged such that the respective axes are in parallel with each other and the respective outer circumferential surfaces are opposed to each other. The machining of the workpiece is carried out by inserting the workpiece into the space between the die cut roll and the anvil roll 30. A resinoid film layer 35 made of the resin having the hardness lower than that of the outer circumferential surface 30A of the anvil roll 30 is formed on the outer circumferential surface 30A of the anvil roll 30. COPYRIGHT: (C)2009,JPO&INPIT
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