Precise injection mold for modular combined plastic frame

The utility model provides a precise injection mold of a modular combined plastic frame, and relates to the field of injection molds. Comprising an outer mold, grooves are formed in the four sides of the interior of the outer mold, side mold plates are arranged in the multiple grooves, racks are fixedly connected to the left side and the right side of the rear side surface of one side mold plate, and two first cavities are formed in the rear side surface of the outer mold; and the rear ends of the two racks penetrate through the rear sides of the inner walls of the grooves to the rear side surface of the outer mold, the lower side surfaces of the two racks are in engaged connection with straight gears, the inner walls of the two straight gears are jointly and fixedly connected with a rotating rod, and the opposite side surfaces of the multiple corresponding side mold plates are fixedly connected with two screws. According to the utility model, the frame is subjected to injection molding by adopting a module m