To improve the manufacture efficiency,this article aims at the design and amelioration of the extrusion dies with a treble-head mold,and expatiates on the idiographic demand of the design in detail.

• 针对现有单一挤出机头在生产中存在的不足,提出采用多模头挤出机头,并进行了多模头挤出机头设计和结构优化以及试模。