Membrane coating device for ferrite sheets

The invention discloses a membrane coating device for ferrite sheets. The membrane coating device comprises a membrane material supplying unit, a membrane coating unit and a substrate supplying unit; the membrane coating unit comprises a magnetic roller, the membrane material supplying unit conveys a first membrane material and enables the first membrane material to be wound on the magnetic roller in a coating mode, the substrate supplying unit sequentially conveys the ferrite sheets and enables the ferrite sheets to sequentially make contact with the magnetic roller, and under the magnetic attraction action of the magnetic roller and the viscosity action of the first membrane material, the ferrite sheets pass through the magnetic roller in a closely attached mode, and the first membrane material is closely pressed to the surface of one side of each ferrite sheet in a coating mode. By arranging the magnetic roller and enabling the first membrane material to be wound on the surface of the magnetic roller in th