The present utility model discloses a precise synchronous demolding device in an injection blow molding machine, comprising: a support plate, on which a motor base is arranged; a servo motor is arranged on the motor base, and a rotation angle encoder and a driving pulley are arranged on the servo motor. Two sleeve seats are arranged in the support plate, a nut is rotatably arranged in each sleeve seat, and a driven pulley is fixedly connected to each nut. A synchronous belt is connected between the driving pulley and the two driven pulleys, a lead screw is threadedly connected in each nut, and a push plate is connected between the two lead screws. The push plate is located at the front side of the support plate, a demolding turning plate is rotatably arranged on the push plate, a swing arm base is connected to the push plate, a cylinder is hinged on the swing arm base, a joint bearing is arranged on the piston rod of the cylinder, and a swing arm is rotatably arranged in the joint bearing and connected to the demolding turning plate. The present utility model has a compact structure and can precisely control the strokes of the push plate and the demolding turning plate.

Country Code: CN

Application Number: CN202322370132.0