Injection Tool Design for Rubber Shoues Injection Mold

• Main Author: 李啟維
• Other Authors: 戴國政
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/wgvxeb

碩士 === 逢甲大學 === 智能化機電系統設計產業碩士專班 === 107 === In the current process of manufacturing vulcanized shoes, the rubber parts are separately made before combing into the shoes body followed by a plurality of steps in the end forming stage then are sent to the heating tank to be shaped at a high temperature and a high pressure, which is complicated and labor-intensive. Therefore, in this paper, it will be discussed how to design a mold that achieves the online output level by first spraying these rubber parts in an injection machine integrally, and allowing them exiting the machine directly after the injection is completed, finally pressurize and heating the outside to wait for the completion of vulcanization. In this mold design, the concept is to shoot by the plastic three-plate mold, and the core is divided into upper and lower molds by the side line splitting, wherein the inclined pin drives the slider to avoid the outer barb portion. The first section is opened when the front head is retracted and the second section will be opened to separate the upper and lower dies. The relevant parameters of the injection machine are calculated to verify the feasibility of the design by Moldflow. The Moldflow mold flow analysis verifies the research results, and shows that the flow balance analysis of the mold design results is based on the calculated parameters. The flow balance of the left and right finished products is equalized and the time difference between the front and rear ends is less than 0.5 second. The exhaust and package analysis is also verified on the front. Although there will be a small part of the toe cap portion but, the exhaust gap will be solved by using the slider gap, and the calculated injection machine parameters will be consistent with the analysis results.