齿顶圆直径为Ф596μm的聚合物微齿轮是血液透析回路中透析液输送泵的一个主要传动零件,从微注射成型模具设计特点出发,重点设计了脱模机构和抽真空排气系统,完成了微齿轮注射成型模具的设计,可为同类产品的模具结构设计提供参考。
An injection mold of micro gear with diameter of 596 μm was designed, which was an important part in the dialysis fluid transmission pump. The emphasis was focused on the demoulding structure and vacuum vent system.