Mold convenient to exhaust and efficient in injection molding

The utility model discloses a mold convenient for exhausting and efficient injection molding, which relates to the technical field of injection molds and comprises an upper mold and a lower mold which are butted with each other, a glue feeding system arranged on the upper mold and an ejection mechanism arranged on the lower mold, an upper mold core is fixedly mounted on the upper mold, and a lower mold core is fixedly mounted on the lower mold. The upper part of the upper mold is connected with a sub-runner plate, the glue feeding system comprises a pouring gate which is arranged on the sub-runner plate and is used for guiding materials, the pouring gate comprises a main runner arranged in the middle of the sub-runner plate and a plurality of sub-runners arranged around the main runner, the upper end of the main runner is connected with an external injection molding machine, and the lower end of the sub-runner is connected with the injection molding machine. The lower end of the main runner is respectively co