中国塑料 ›› 2023, Vol. 37 ›› Issue (12): 109-114.DOI: 10.19491/j.issn.1001-9278.2023.12.016

• 机械与模具 • 上一篇    下一篇

汽车马鞍盖板注射成型冷却系统优化及模具设计

蔡厚道(), 李贵金, 陈云   

  1. 江西科技学院人工智能学院,南昌 330098
  • 收稿日期:2023-04-17 出版日期:2023-12-26 发布日期:2023-12-26
  • 作者简介:蔡厚道(1980-),男,教授,从事机械制造、模具CAD/CAE研究,304104304@qq.com
  • 基金资助:
    江西省高等学校教学改革项目(JXJG222410);江西省教育厅科学技术研究项目(GJJ212010)

Optimization of cooling system and mold design for automobile saddle cover panel

CAI Houdao(), LI Guijin, CHEN Yun   

  1. School of Artificial Intelligence,JiangXi University of Technology,Nanchang 330098,China
  • Received:2023-04-17 Online:2023-12-26 Published:2023-12-26

摘要:

利用Moldflow软件模拟注塑过程,对比分析模具冷却系统的常规运水设计和随形运水设计冷却水路对产品成型冷却的影响,相比常规运水设计,随形运水设计中产品中心和两侧的最高温度差控制在5 ℃以内,塑件达到顶出温度的冷却时间缩短了17 %,总变形量下降了38.61 %,随形冷却水路的温度均匀性好、冷却效果最佳。为了使产品顺利脱模,采用前模内、外拨块滑块机构,后模斜导柱滑块机构、斜顶机构和“顶针+推块”的联合推出机构完成了一副热流道随形运水注射模具设计,该模具结构设计先进,机械式扣机机构实现了两板模具的顺序开模,保证了模具工作的可靠性。

关键词: 汽车马鞍盖板, 注射成型, 冷却系统, 热流道, 模具设计

Abstract:

Moldflow software was used to simulate the injection process. The influences of the traditional cooling channel design and conformal cooling channel design of the mold cooling system on the cooling of product formation was compared and analyzed. The maximum temperature difference of the conformal cooling channel design between the product center and both sides was controlled within 4 ℃, which reduced the jacking cooling time by 17% and the total deformation by 38.61% compared to that of the traditional cooling channel design. This resulted in the optimal cooling uniformity of the mold with a conformal cooling channel. A hot runner injection mold of the conformal cooling channel was designed by using a inside and outside slider mechanism, an angle pin core⁃pulling mechanism, a lifter mechanism, and an “ejector pins pushing+ejector block pushing” mechanism. This design made the product released smoothly. The mold design was advanced, and the latch⁃style mechanism realized the order opening of two⁃plate injection mold, which could ensure the reliability of mold operation.

Key words: saddle cover panel of car, injection molding, cooling system, hot runner, mold design

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