Printed circuit board film pasting plate rotating mechanism

The utility model discloses a printed circuit board pasting film rotating plate mechanism which comprises a base and a rotating table, a cavity is arranged in the base, a bidirectional lead screw is rotatably arranged in the cavity, one end of the bidirectional lead screw is connected with a crank, the crank rotatably penetrates through the cavity and the side wall of the base, and the rotating table is arranged on the base. A bidirectional lead screw is arranged on the base, a first lead screw pair and a second lead screw pair are connected to the bidirectional lead screw in a threaded and sleeved mode, connecting blocks are connected to the first lead screw pair and the second lead screw pair, a movable plate is connected to the top ends of the connecting blocks, a movable side edge clamping and overturning assembly is arranged on the movable plate, and a lifting air cylinder is rotatably arranged on the base. The lifting air cylinder is connected with a rotary steering assembly, and the rotary table is con