Development Of Visual Device For Injection Molding Process

With the wider application of injection molding product in engineering of mechanics, electronic, aviation and instruments, there will be a ever-higher requirement of the apparent accuracy and quality. The molding process of injection molding product is very complicated dynamic coupling factors process. Each factor, for example, the structure of injection mold, injection materials, the process parameters of injection have the major impact on the quality of injection molding products. How to do the qualitative and quantitative analysis of the reasons of injection products quality defects and to propose appropriate countermeasures is a facing important subject, by which can improve the accuracy, apparent quality and me chanical properties of injection molding product. Using the visual techniques to solve this problem is a very good idea.In this study, facing the research actuality and development trend of the molding process of injection molding product, former experimental research results of molding process is analyzed and concluded, and especially on the basis of research of injection molding process in use of visual technology, and considering our existing processing equipment and laboratory equipment, we design and manufacture a visual mold for the experimental injection molding. Firstly, this study has a detailed analysis and comparison of the existing visual design project for the experimental mold, and concludes the characteristic and shortage of experimental mold, and selects a suitable mold design project, and also does the elementary structural design.Secondly, in the process of manufacturing and assemblying, and after several experiments, This study also constantly revises and improves the structure of the mold. For example, it includes the revise of shape of front quartz glass and the region of filling in cavity.Then, using the moldflow software, the flow simulation of molding process is done, the flow simulation includes the process of flowing through the injection molding the gate,the runner, the total mold cavity, until the end of packing. The simulation analysis, taking into account the low heat conductivity of quartz glass, this study designs particularly the inserts, whose thermal conductivity is close to the quartz glass, and to the greatest ture extent, the simulation is similarly to the fact. The moldflow simulation analysis has obtained the best injection molding process parameters, to a certain extent, which provide a valuable reference to the choice of process parameters, such as injection pressure, injection rate, holding time, the clamping force, mold temperature and other parameters. At the same time, using the analysis of the...