摘要
分析了密码机面壳的注射成型工艺,指出了模具设计的难点,模具运用潜伏式浇口避免了在制品表面留下浇口痕迹,设计循环式冷却系统提高了制品精度,采用斜推杆实现了制品内侧倒扣的成型与抽芯。实践证明,模具结构合理,工作稳定,成型的制品质量合格。
The injection moulding process for a cipher machine face shell was analyzed and the mould design difficulty was pointed out. The use of submarine gate prevents the gate mark from being on the surface; the circulating cooling system increases the products accuracy; and the application of angle ejector pin achieves the moulding and core-pulling of the product with inside upended structure.
出处
《模具工业》
2014年第11期29-33,共5页
Die & Mould Industry
关键词
密码机面壳
注射模
潜伏式浇口
斜推杆
抽芯
cipher machine face shell
injection mould
submarine gate
angle ejector pin
core-pulling