卸料板推管二次推出压铸模设计

针对复杂壳体压铸件难以脱模的问题,分析了复杂壳体的工艺特性,设计了卸料板、推管二次推出压铸模,论述了模具工作原理和结构特点,并且通过胀型力的计算选择了压铸机。该模具推出机构的异形摆块使卸料板和推管产生速度差,实现铸件的二次推出,解决了工件变形的问题。模具结构紧凑,工作可靠,成型工件满足质量要求。

Design of Die-casting Mould with Stripper Plate and Ejector Sleeve Twi-ejection

In order to solve the problem of the difficulty for the complicated shell in stripping away from the mould, the technical trait of the complicated shell has been analyzed, the twi-ejector using stripper plate and ejector sleeve has been designed, the mould operational principle and the structure trait have been discussed, and the die casting machine has been selected based on the swelling force calculation. The pendulum block of the ejector on this mould makes the velocity different between the stripper plate and the ejector sleeve, which realizes the twi-ejection, and thus solves the problem of the casting distortion. The mould structure is compact, it works reliably,and the casting meets the quality request.