收音机外壳上盖注射模的设计

Design of Injection Mold for Front Cover of Radio Set Shell

分析了收音机外壳上盖的塑件工艺特点 ,介绍了收音机外壳上盖注射成型模结构的设计及模具的工作过程。此注射模设计的结构特点是点浇口形式的双分型面的注射模 ,是侧向抽芯。经生产验证 ,该模具结构设计巧妙、操作方便、使用寿命长 。

The technological characteristics of the plastics front cover of the shell of radio set were analyzed, the design and the working process of the injection mould of the front cover of the shell of radio set were introduced.The structure peculiarity of this injection mould was a two-parting surface, and was a side core pulling mechanism.The mould was proved to be a clever design by production practice, the mould could be operated easily, the service life of the mould was long and the plastics parts produced by the mould could meet the technical requirement.