Development of an Automatic Debubbling System with Human-Machine Interface

• Main Authors: Chuan-Ming Huang, 黃川銘
• Other Authors: Chil-Chyuan Kuo
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/10951834304926752035

碩士 === 明志科技大學 === 機電工程研究所 === 101 === Rapid tooling is used extensively in the industry. Silicone molding is one of these techniques. During fabricating silicone molds, silicone is stirred homogeneously with hardening agent to be solidified and amounts of bubbles are generated. Vacuum machine is used for debubbling to prevent bubbles remained in the solidified silicone and becomes the defects in the products. Generally, the price of vacuum molding equipment with vacuum de-bubbling facility is beyond one million NT$. It’s not affordable for the small –scale laboratory. If using manual vacuum facility to de-bubbling, it will take a long time for monitoring to prevent silicone overflow in the de-bubbling process. It turns an important issue to achieve de-bubbling completely and shorting the operation time. In the study, a vacuum de-bubbling system with human machine interfaces is proposed. Three different volumes of silicon are used for studying the improvement of debubbling efficiency and saving of operation time. The results show more than 41% time saving can be reached by the proposed automatic mode than manual mode. The main difference is the time consumed on the explosion phase. In addition, time prediction equations are also established for different silicon volumes at balance phase and convergence phase, where maximum error rate of prediction time is controlled bellow 6.34%, to assure the effect of vacuum debubbling can be achieved completely.