中国塑料 ›› 2025, Vol. 39 ›› Issue (8): 120-123.DOI: 10.19491/j.issn.1001-9278.2025.08.019

• 机械与模具 • 上一篇    下一篇

照相机支架注塑模具设计

金华军()   

  1. 无锡职业技术学院机械工程学院,江苏 无锡 214121
  • 收稿日期:2024-09-21 出版日期:2025-08-26 发布日期:2025-07-30
  • 作者简介:金华军(1978—),男,高级技师,从事材料成型工艺、模具设计研究,jhj7801@163.com

Design of injection mold for camera support

JIN Huajun()   

  1. School of Mechanical Engineering,Wuxi University of Technology,Wuxi 214121,China
  • Received:2024-09-21 Online:2025-08-26 Published:2025-07-30

摘要:

照相机支架产品结构复杂,精度要求高,外观面要求无任何缺陷,成型工艺及模具设计有较高的难度。经工艺验证,采用动模潜伏浇口,塑料熔体通过产品上增加的工艺薄片进入型腔,以保证产品的成型质量。该产品有4处需要设计侧向抽芯与分型结构,其中2处为动模侧的斜向侧抽。借鉴双分型面模具结构的分型原理,采用固定在支承板上的斜抽块作为传动元件,利用支承板与动模板之间的开模力驱动斜向侧滑块在斜抽块的斜向T型槽内运动,迫使斜向侧滑块沿主型芯内的斜孔移动设定距离,实现斜向侧抽。试模结果表明,模具设计结构合理,动作可靠,产品质检合格。

关键词: 相机支架, 潜伏浇口, 工艺薄片, 斜向侧抽芯, 斜向T型槽

Abstract:

The camera support component presents significant molding challenges due to its complex structure, high precision requirements, and stringent surface quality standards. To achieve optimal molding quality, the mold design incorporates several innovative features: (1) a submarine gate positioned in the moving half, enabling melt to flow through product additives via plastic sheeting; (2) a sophisticated core⁃pulling system with four side mechanisms, including two angled core⁃pullers in the moving half; and (3) an innovative adaptation of three⁃plate mold parting principles, where an angled pulling split fixed to the support plate serves as a transmission element. During operation, mold opening force between the support plate and moving half plate drives angled sliders along T⁃slots in the pulling split, achieving precise angled core⁃pulling through guided movement along the main core's angled holes. Trial results confirm the mold structure's reliability and effectiveness, producing components that meet all quality specifications.

Key words: camera support, submarine gate, process sheeting, angled side core?pulling, angled T?slot

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