中国塑料 ›› 2024, Vol. 38 ›› Issue (9): 107-111.DOI: 10.19491/j.issn.1001-9278.2024.09.018

• 机械与模具 • 上一篇    

一套复杂的倒装热流道注塑模具设计

庄雨乐, 赵利平(), 秦瑞亮, 蒋尚添, 孙光东, 梁世添   

  1. 广东科技学院机电学院,广东 东莞 523000
  • 收稿日期:2024-03-26 出版日期:2024-09-26 发布日期:2024-09-27
  • 通讯作者: 赵利平(1982-),男,模具制造工高级技师、机械实验师,从事模具设计及制造,机械制造设计及机械零件加工等方面研究,273725342@qq.com
    E-mail:273725342@qq.com
  • 基金资助:
    广东科技学院教科创教育相长项目(GKJXXZ2023032);2023松山湖科技特派员项目《基于AI人工智能技术的起源机器人控制系统及自动化设备研发》(20234440?01KCJ?G)

Design of large injection mold for office equipment shell

ZHUANG Yule, ZHAO Liping(), QIN Ruiliang, JIANG Shangtian, SUN Guangdong, LIANG Shitian   

  1. School of Mechanical and Electrical Engineering,Guangdong University of Science and Technology,Dongguan 523000,China
  • Received:2024-03-26 Online:2024-09-26 Published:2024-09-27
  • Contact: ZHAO Liping E-mail:273725342@qq.com

摘要:

针对一款碎纸机上壳塑件,为解决塑件表面进胶出现浇口痕的问题,特别设计了一副复杂倒装结构的后模进胶方式的热流道模具。通过设计机械拉勾的方式完成顶出动作。鉴于塑件四周倒扣和内部骨位多的结构特性,后模侧向设计了四边滑块拼接抽芯方式脱模;后模芯设计了多处镶件结构,方便加工、防止困气、提高成型效率及品质。量产过程中,模具各机构运行平稳,塑件品质优秀,符合设计要求。

关键词: 碎纸机, 热流道, 倒装模具, 四边滑块抽芯机构, 机械拉勾

Abstract:

To address the problem in the existence of gate marks on the surface of a shredder shell plastic part, a hot runner mold with a complex inverted structure and a rear mold feeding mode was designed. The ejection action was completed through designing mechanical hooks. Considering the structural characteristics of the plastic parts with multiple inverted buckles surround them and internal bone positions, a four⁃sided slider splicing and core⁃pulling mechanism was designed for demolding on the lateral side of the rear mold. The back mold core was designed with multiple insert structures, which facilitated the processing, prevented the air trapping, improved the molding efficiency and quality. During the mass production, the various mechanisms of the mold operated smoothly, and the quality of the plastic parts was excellent, which could meet the requirements of design.

Key words: needle valve type hot runner, inverted mold, four side slide core extraction mechanism, mechanical hook, shredder

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