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文章基于遗传算法对全电动合模机构的肘杆机构的关键参数进行优化,同时优化了限制肘杆机构性能的轴销的回转直径与后模板铰点定位尺寸,解除了不合理的轴销的回转直径与后模板铰点尺寸对肘杆机构性能的影响。结果表明:在保证行程比与速度比满足要求的基础上,力的放大比增大了11.9%且速度比曲线更平缓。在不改变肘杆机构性能的基础上,轴销的回转直径与后模板铰点尺寸可以进行平移。计算得到合模机构临界角为4.37°,曲轴角达到合模临界角时,肘杆机构开始产生合模力,当曲肘角为0°时,合模机构合模力达到最大1300 k N,为全电动注塑机双曲肘内翻式合模机构的设计提供技术依据。
Based on the genetic algorithm, the article optimizes the key parameters of the toggle mechanism of the all-electric clamping mechanism and optimizes the pivoting diameter of the pin and the position of the rear mold hinge to limit the performance of the toggle mechanism, The Influence of Swing Diameter and Post Mold Hinge Dimension on Performance of Torsion Bar Mechanism. The results show that the force amplification ratio increases by 11.9% and the velocity is more gentle than the curve, while guaranteeing the ratio of stroke to speed meets the requirements. Without changing the performance of the toggle mechanism, the pivoting diameter of the pin and the size of the hinge point of the rear mold plate can be translated. The critical angle of the clamping mechanism is calculated to be 4.37 °. When the crankshaft angle reaches the critical angle of clamping, the toggle mechanism begins to generate the clamping force. When the bending angle is 0 °, the clamping force of the clamping mechanism reaches 1300 kN, All-electric injection molding machine double bend elbow-type clamping mechanism to provide technical basis.