| 摘要 |
The present invention relates to a punching apparatus which punches papers and, more specifically, to a punching apparatus connecting multiple connecting rods and punching members with one crankshaft, while the crankshaft is connected with a rotation shaft to have a certain angle for multiple punching members to punch papers with a time difference. The punching apparatus according to the present invention includes a driving source; a rotation shaft rotated by the driving source; a crankshaft eccentrically connected with the rotation shaft; multiple connecting rods combined with the crankshaft to convert rotatory motion of the crankshaft into lifting motion; and multiple punching members combined with the connecting rod and punching papers, wherein the crankshaft is characterized by being connected with the rotation shaft to be twisted in a certain angle for the multiple punching members to punch the papers with a time difference. |
