Research on Simulation of Injection Molding for Barrel-Shaped Plastic Part

• Main Author: 李進順
• Other Authors: 劉明山
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/48966360316726286505

碩士 === 逢甲大學 === 機械與電腦輔助工程學系 === 103 === The study used computer-aided mold flow analysis software Autodesk Simulation Moldflow Synergy to investigate the key factors of long cylindrical high-magnification zoom lens barrel plastic part in the process of forming, and the influences on the formability and roundness with different injection forms and gate location setting. Results showed that the cavity center easily gather heat in the process of forming the plastic long cylindrical zoom lens barrel, so the cooling channel in the central core is necessary. The camera barrel forming process with non-uniform thickness caused hesitation for the formability has very huge influence. The compound injection system which has three equal distributed pin-point gates in the barrel top and three equal distributed side gates just below the thin grooves improves the effectiveness of hesitation and the data of forming and the roundness. It has better performance in the experiments of serval kinds of injection system. Hence, hesitation and roundness could be controlled through the design of the gate location and number of gates.