Film covering device for protective door production

The utility model relates to the technical field of protective door production, in particular to a film covering device for protective door production. According to the technical scheme, the device comprises a panel, a shell and a water tank, a fixing shaft is arranged on the inner wall of the panel, the shell is welded to the top end face of the panel, a partition plate is welded to the inner top end face of the panel, a first ceramic heating pipe is installed on the top end face of the panel in an attached mode, a liquid outlet pipe is installed on the inner wall of the panel, and an air inlet pipe is fixedly embedded into the shell; a water tank is welded to the rear end face of the shell, a water pump is arranged on the bottom end face of the inner wall of the water tank, a machine box is welded to the rear end face of the shell, a rotating shaft is arranged on the front end face of the machine box, a limiting frame is welded to the rotating shaft, and an unwinding wheel is arranged in the limiting frame.