▎ 摘　　要

NOVELTY - The utility model claims a multifunctional protection device of plastic mould, comprising an upper mould and a lower mould, two side walls of the upper mould are provided with an assembling groove, the assembling groove position of the upper mould is compounded with a radiating component, the radiating component comprises a graphene gasket, a copper-aluminium alloy plate and a copper-aluminium alloy rib, the copper-aluminium alloy plate is bonded outside the graphene gasket by heat-conducting silicone grease. the assembling groove of the upper mould is provided with a radiating component, the radiating component comprises a graphene gasket, copper-aluminium alloy plate and copper-aluminium alloy rib, in the mould closing process, the part of heat generated by the upper mould is transferred to the surface of the copper-aluminium alloy plate through the graphene gasket, the copper-aluminium alloy rib and the arc-shaped groove on the surface of the copper-aluminium alloy plate increase the radiating area, improve the radiating effect, reduce the accumulation of the heat on the upper mould surface, improve the product quality; the lower mould surface is provided with a radiating through hole B and a radiating through hole A, radiating through hole B and radiating through hole A increases the flow effect of the lower mould surface and the inner air, so as to reduce the accumulation of heat.