▎ 摘　　要

NOVELTY - The graphene preparing system has a material storage cover (23) which is comprised of a spherical crown shape, and is formed with an upward opening. A suction cup (24) is arranged at a lower end of the material storage cover. The suction cup is fixedly mounted on an upper surface of a lower bottom plate (13) by an electric push rod (25). A lower surface of a mounting block (21) is fixedly mounted with a rubber pad for reducing the impact of the material storage cover on the mounting block. A lower surface of the material storage cover is provided with a mounting block (26) which is fixedly mounted on the upper surface of the lower bottom plate through an elastic component (27). USE - Graphene preparing system. ADVANTAGE - The problem of reduced elasticity caused by the long-term use of the spring is solved. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic front view of the graphene preparing system. Lower bottom plate (13) Mounting blocks (21,26) Material storage cover (23) Suction cup (24) Electric push rod (25) Elastic component (27)