Novel mold closing device of injection molding machine

The invention relates to the technical field of mold closing devices, solves the problems of easy deformation and heavy weight of a mold closing device of an injection molding machine in the prior art, and particularly discloses a novel mold closing device of an injection molding machine, which comprises a fixed mold plate, a tail plate, a movable mold plate, a power mechanism and a toggle rod mechanism, the power mechanism drives the movable mold plate to move between the fixed mold plate and the tail plate through the toggle rod mechanism, mold opening and closing are achieved, an inner connecting rod is additionally arranged in the toggle rod mechanism, when the toggle rod mechanism works and a rear connecting rod part is stressed, most of force is concentrated on the inner connecting rod, and due to the fact that the inner connecting rod is wide, the inner connecting rod is not prone to breakage and deformation, and mold opening and closing are achieved. Meanwhile, the multiple weight reduction cavities a