Heating vacuum adsorption roller for two-side direct coating machine

The utility model provides a heating vacuum adsorption roller for a two-sided direct coating machine, which comprises an outer roller, the surface of the outer roller is provided with a plurality of vacuum adsorption small holes which are densely distributed, and the inner wall of the outer roller is covered with an inner roller. Due to the fact that the swelling film and the breathable supporting film are tightly attached in the vacuum adsorption state of the heating vacuum adsorption roller, when the slurry is coated on the swelling film, the swelling film is restrained by the adsorption force of the heating vacuum adsorption roller, and swelling deformation does not occur. Due to the fact that the breathable supporting film has breathability and is not sticky, the breathable supporting film can be attached to the swelling film in the vacuum adsorption state of the heating vacuum adsorption roller, the supporting and protecting effects are achieved, and a coating on the surface of the swelling film can be p