▎ 摘　　要

NOVELTY - The utility model claims a graphene coating film device, comprising a storage tank, a peristaltic pump, a spraying device and a heating piece, the lower part of the spraying device is provided with a heating member, the heating member comprises a working platform, the working platform is fixed on the bracket; the bracket is provided with a heating cylinder through a rotating shaft, a first roller and a second roller, the first roller and the second roller is set at the two sides of the heating cylinder, the bracket is further provided with two oppositely set through hole, the through hole is sleeved with a movable rod; lower end of the movable rod is equipped with a roller. the heating cylinder is metal foil pressed by one end of the first roller, the second roller presses the heating the other end of the metal foil on the cartridge, the heating of the metal foil tube end is pressed on two sides by two pair of rollers of the two, can spread, flattening the metal foil firmly fixed on the heating cylinder, and prevents the metal foil by high pressure air flow blows to deformation.