多模穴之分配位置及流道平衡的引導式模具設計

Position Allocating and Runner Balancing in Navigating Multi-cavity Mold Design

李坤璟(Kun-Jing Li)

指導教授 ： 鍾文仁

中原大學/工學院/機械工程研究所/碩士(2015年)

https://doi.org/10.6840/cycu201500912

摘要

現今產業及經濟的快速發展，造成產品變化快速，因此必須縮短產品生產週期，以因應需求，然而產品的設計經常依靠工程師的經驗，尤其在一模多穴上的流道平衡複雜度，非一般設計工程師能輕易控制的，且許多問題都發生在設計完成後的測試產出階段，造成額外支出並提高成本。近年來電腦輔助分析(Computer Aided Engineering, CAE)發展快速，多數問題都能於分析完成後找出，但CAE與電腦輔助設計(Computer Aided Design, CAD)使用的檔案並不相同，經常需要切換使用兩種不同軟體；因此本研究在CAD軟體下，導入引導流程，以標準化流程引導使用者完成設計，接著以一模多穴流道平衡和流長比等理論公式計算，預估一模多穴時，模仁大小與模穴擺放的位置，並計算流道設計是否符合設計要點，讓經驗不足的使用者在額外參考資訊下，可設計出錯誤較少的模穴位置及流道系統，最後應用CAD/CAE整合系統，在單一CAD軟體操作環境下做分析，使用者閱讀分析報告後，可利用程式直接對尺寸設計，進行對應的修改。由以上幾點，可做到減少設計錯誤、避免初始值錯誤過大的CAE分析，及去除CAD與CAE間，軟體多次的切換與檔案匯出匯入，降低設計及分析的時間與成型測試上的錯誤，達到縮短模穴與流道設計40%以上的時間，及減少模具修改的成本。

關鍵字

射出成型 ； 一模多穴 ； 模穴位置 ； 流道平衡 ； 引導流程

並列摘要

With the rapid development of industry and the economy, resulting in product changes quickly. It is necessary to shorten the product life cycle to cope with demands, but the product design rely on the experience of engineers, especially the runner balance complexity in a mold multi-cavities. And many problems would occur in the testing stage, resulting in additional expenses and increase costs. In recent years, Computer Aided Engineering (CAE) develop fast, so most problems can be find after the analysis. But the files of CAE and Computer Aided Design (CAD) are different, users need to switch to use two different software. Therefore this research import the navigating process in CAD software to the standardize process and led the user to complete the design. By the calculations of theoretical formula of multi-cavity mold runner balance and flow length ratio, it would estimate the size of the mold core and the position of cavity with a multi-cavity mold. Also the process would check the runner design meets the design elements, so that inexperienced users can design the more correct cavity location and runner system. Finally using the application of CAD / CAE integration, users can run the analysis in CAD software operating environment. After studying analysis reports, users can directly change the design. From the above study, the process can reduce design errors and to avoid wrong CAE analysis with a too big initial value, also removed the switch between CAD and CAE, in result that reducing the time of design and analysis. This study can shorten the design time of cavity and runner design for more than 40%, and reduce the cost of mold modification.

並列關鍵字

Injection Molding ； Multi-Cavity ； Cavity Position ； Runner Balance ； Navigating Design

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