Abstract: According to the product and technical requests for the injection-molded outlet joints of cylinder heads provided by an enterprise, the injuction mould used for the production of this outlet joint was designed by adopting a stacked-hot-runner structure, and the feasibility of designed scheme was confirmed through a molding simulation using a Moldflow software. Furthermore, the side core-pushing and side parting mechanisms, a stacked-hot-runner system, a two-step ejection mechanism and electrical heat and temperature control systems were designed. The mould has been used for the practical production and proved that it has reasonable structure.

Key words: stacked injection mold, hot runner, injection molding simulation, electrical-heating temperature control system, two-step ejection mechanism