Coating device of covering glass antireflection film

The invention discloses a coating device of a covering glass antireflection film. The coating device includes: a film coating mechanism used for coating a covering glass with the antireflection film and a transmission mechanism used for transporting the covering glass. The film coating mechanism comprises a film coating roller and a film coating liquid metering roller, wherein the film coating liquid metering roller is arranged above and is contact with the film coating roller. The transmission mechanism comprises a plurality of transporting rollers which are arranged in parallel and are arranged below the film coating roller. A gap is formed between the transporting rollers and the film coating roller and is used for the covering glass to pass through. By means of the film coating roller for coating the covering glass with the antireflection film, the thickness of the antireflection film is uniform. In addition, the gap between the transporting rollers and the film coating roller can be adjusted, by which the thickness of the antireflection film on the surface of the covering glass can be adjusted, thereby achieving a design requirement of the antireflection film and increasing a light transmittance of the covering glass.