| 摘要 |
A sheet S is intermittently advanced or alternately advanced and retreated by a pair of feed rollers 23a, 23b in synchronization with rotation of a pair of magnet and anvil rollers 16, 17 so that the pair of magnet and anvil rollers 16, 17 makes two or more revolutions while the sheet S passes through the pair of magnet and anvil rollers 16, 17. The punching of the same pattern is performed by a flexible die 29 at a plurality of areas of the sheet S spaced in a sheet conveying direction. |
