Design Optimization of the Layout of the Heating/Cooling Pipes in Rapid Heat Cycle Molding of a LED TV shell

摘要

Compared to conventional injection molding, the rapid heat cycle molding (RHCM) mold design must meet higher requirements. Taking the average temperature, the quadratic sum of the temperature deviation, the average stress, the average maximum stress, and the average life as test indexes, the orthogonal test was done. Employing the math optimizing analysis software, 1stOpt, response surface models and regression equations of different indexes were obtained by analyzing the results of the orthogonal test. The optimization model of the heating/cooling pipe layout for a LED TV shell RHCM mold was established. Finally, the optimization design of the heating/cooling pipe layout was realized by employing nonlinear programming. The heating/cooling efficiency and lifetime of the optimized RHCM mold was ensured, and the molding cycle could be done in 62 seconds.