| 摘要 |
A punching apparatus includes a base having thereon a plurality of seats for receiving and holding an object to be punched; an eccentric transmission mechanism disposed on the base and performing a uni-directional eccentric rotation; and a cutting tool assembly transmitted by the eccentric transmission mechanism to alternately switch between a working state where a plurality of cutting tools thereof are moved deep into the seats to punch through the object and a standby state where the cutting tools are retracted from the seats to release the object in response to the uni-directional eccentric rotation.
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