Pneumatic intelligent folding center upper pressing die hinge die and using method

The invention discloses a pneumatic intelligent folding center upper pressing die hinge die and a using method, the pneumatic intelligent folding center upper pressing die hinge die comprises a die body, the bottom of the die body is provided with a main body knife edge, the die body is provided with a driving mechanism, a movable ear knife taking the driving mechanism as a power source and rotating relative to the die body, and a positioning block suitable for limiting the position of the movable ear knife; the output end of the driving mechanism is connected with the movable lug cutter to drive the movable lug cutter to rotate, the bottom edge of the movable lug cutter is provided with an auxiliary cutter edge used for being horizontally aligned with the mold body, and the bottom of the outer side of the movable lug cutter extends to form a lug mold. When the bending is finished and the die is withdrawn, the air cylinder pushes the movable ear knife and the knife edge of the movable ear knife to be quickly