Punch and die apparatus for manufacturing secondary battery and electrode plate knockout device

Abstract

The present disclosure relates to a punch and die apparatus for manufacturing a secondary battery and an electrode plate knockout device. The punch and die apparatus includes a lower die that supports an electrode plate and has one or more scrap discharge holes, an upper die positioned above the lower die and including a punch corresponding to each of the scrap discharge holes, and a knockout device including a guide body partially protruding toward the scrap discharge hole and configured to provide a support force upon being fixed to the lower die, a knockout block supported by the guide body to vertically move and supports the electrode plate via a reaction force corresponding to a downward pressure of the punch to a bottom surface of the electrode plate when the punch punches the electrode plate, and an elastic force providing part elastically supporting the knockout block.

Dependencies are inferred from the claim text.