| 摘要 |
The present invention relates to a punching device and, more specifically, to a punching device connecting multiple connecting rods and punching members having different lengths to one crank and capable of punching paper with the punching members at time differences. The punching device according to the present invention includes a driving source; a rotary shaft rotated by the driving source; the crank connected to the rotary shaft to be eccentric; the multiple connecting rods joined to the crank and converting the rotation of the crank into lifting movement; and the multiple punching members joined to the connecting rods to punching paper. The present invention is characterized that the lengths of the punching members are different to punch paper at time differences. |
