Stack mold balance injection device

The utility model discloses a stack mold balance injection device, belongs to the field of injection molds, and solves the problems that the quality of an injected product is influenced because temperatures, speeds and pressure of material flows at various injection gates of a stack mold are unequal. According to the stack mold balance injection device, the material flow enters a main injection gate from a nozzle of a machine tool, enters a one-stage diving plate from a main runner hot nozzle, flows to a two-stage dividing plate A and a two-stage dividing plate B respectively through a first dividing hot nozzle and a second dividing hot nozzle, then flows to a three-stage dividing plate A, a three-stage dividing plate B, and a three-stage dividing plate C respectively and enters a cavity through various injection hot nozzles and injection gates. According to the utility model, runners of the material flows from the nozzle of the machine to the various injection gates are same in length and structure, and the temperatures and pressures of the material flows at the various injection gates are equal, so that the balance injection is realized, and the quality of the injected product is improved.