PURPOSE: To simplify a production line by pushing out a counter plate synchronously with a separator-covered plate for stacking a plate group.

CONSTITUTION: Counter plate sending-out equipment 6 detects the passing of a separator-covered plate 1 and synchronously places a counter plate 2 on the separator-covered plate 1 on a claw conveyer. By installing this plate automatic stacking equipment just in the back of a separator-covered plate production machine, the stock of the separator-covered plates is made unnecessary, and the plate group stacking process is simultaneously progressed with the plate production. The space is saved and production speed is increased.