Direct-pressure mould closing and clamping mechanism

The utility model discloses moulding equipment for pressing a molten material into a moulding cavity for moulding, in particular to a direct-pressure mould closing and clamping mechanism used for the moulding equipment. The mechanism is provided with an adjusting lead screw, a threaded guide drum, a transmission mechanism and a driving device, wherein the adjusting lead screw and the threaded guide drum are matched with each other and are axially parallel to a mould closing cylinder; one of the adjusting lead screw and the threaded guide drum serves as a fixture, and the other serves as a driving member; the fixture is fixed to an axial position of a big lever; a rotating member is fixed to the axial position of a movable plate; and the rotating member is connected with the driving device through the transmission mechanism. Through the adjusting lead screw and the threaded guide drum, the influence of mould adjustment on the travel of an oil cylinder is prevented, and the clamping force is improved through the dead point of the oil cylinder; thus the invention can overcome the disadvantage of instantaneous impulsive load during fast extruding injection, solve the problem of insufficient rigidity of the structure of a conventional direct-pressure mould closing and clamping mechanism, provide the direct-pressure mould closing and clamping mechanism with high rigidity and high positioning accuracy and be applied to various injection moulding machines and die casting machines.