Film oil gas mixing device for film coating machine

The utility model discloses a film oil gas mixing device for a film coating machine, which comprises a heating barrel, a spiral heater is mounted on the inner wall of the heating barrel, internal threads are arranged on the inner wall of an opening of the heating barrel, a threaded cover is arranged at the opening of the heating barrel, a gas storage cylinder is mounted above the threaded cover, and a gas outlet is formed in the gas storage cylinder. Two sets of supporting columns and a gas storage box are installed on the lower portion of the heating barrel, a liquid outlet pipe fixedly penetrates through the other side of the heating barrel, a control valve is arranged on the side wall of the liquid outlet pipe, a base is welded to one ends of the two sets of supporting rods, and a plurality of sets of installation cavities are formed in the inner bottom face of the heating barrel. And air spraying pipes penetrate through the interiors of the multiple sets of mounting cavities, and one ends of the multiple