Surface paint spraying device for metal door and window machining

The utility model relates to a surface paint spraying device for metal door and window processing, which comprises a shell, one side of the shell is provided with a paint spraying part, a partition plate is fixedly connected in the shell, the top of the partition plate is rotatably connected with a lower plate, the bottom of the partition plate is fixedly connected with a support frame, and the top of the support frame is fixedly connected with a motor. The output end of the motor is fixedly connected with the lower plate, two threaded sleeves are rotatably arranged on the upper half portion of the shell in a penetrating mode, threaded rods are in threaded connection with the interiors of the threaded sleeves, a top plate is arranged on the upper half portion in the shell, the bottom ends of the threaded rods are fixedly connected with the top of the top plate, and an upper plate is rotatably connected to the bottom of the top plate. And a worm gear fixedly sleeves the outer peripheral surface of the threaded