注塑机锁模机构动力学模型的建立与验证

摘要

对双曲肘五铰点锁模装置进行动力学分析,建立数学模型,并利用实验法确定该机构的传动损失因子.利用该模型对某系列注塑机的锁模力和锁模行程进行预测,并与实际值进行比较,结果显示的锁模力预测误差在3%以内,锁模行程的预测误差在0.12%以内.%An analysis on motional and mechanical characteristics of double-toggle clamping unit with slanting-five points for injection molding machine was made. The mathematical model used to predict clamping force and mold platen travel distance was constructed. The total transmitting efficiency factor of clamping system was determined using experimental method. By comparing the predicted and real value of clamping force, mold platen travel distance, it showed the errors of predicted clamping force and mold platen travel distance were within in 3％, and 1.2 ‰, respectively.