满足位移要求的偏置式双肘杆模切机构结构参数优化分析  

Optimization Analysis of Structural Parameters for Offset Double-Toggle Molding Mechanism Meeting Displacement Requirement

作　　者：王君玲 李子昂 陈伟 高玉芝 郭彩玲[1] WANG Jun-ling;LI Zi-ang;CHEN Wei;GAO Yu-zhi;GUO Cai-ling(Hebei Key Lab of Intelligent Equipment Digital Design and Process Simulation,Tangshan University,Tangshan 06300,China;School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100018,China;Shengtian Printing and Packing Machinery Co.,Ltd.,Yutian 064100,China)

机构地区：[1]唐山学院河北省智能装备数字化设计及过程仿真重点实验室,河北唐山063000 [2]北京理工大学机电工程学院,北京100018 [3]盛田印刷包装机械有限公司,河北玉田064100

出　　处：《唐山学院学报》2022年第6期29-34,共6页Journal of Tangshan University

基　　金：2020年度河北省省级科技计划项目重点研发计划(20327107D);2022年度唐山市市级科技计划项目(22150203A)。

摘　　要：模切机是印后包装加工成型的重要设备,模切机构是其核心,对模切机构的优化设计有利于提高模切机的工作性能。文章采用矢量复数法和杆长逼近约束条件法建立偏置式双肘杆模切机构的位移分析模型,在满足位移要求的基础上进行结构参数优化,即以一个运动周期内动平台转角和其后端垂直位移无限接近理想值为目标函数,从机构在工作过程中对构件位置要求及曲柄存在条件的角度出发建立约束函数,运用Matlab编程求解,得到符合要求的各构件尺寸。以优化后的尺寸进行实体建模和运动仿真,仿真结果与理论计算结果相吻合,由此验证了所建函数与计算程序的正确性。Modeling machine is an important equipment for packaging processing and forming after printing,where the core is the modeling mechanism.Thus,the optimization of the modeling mechanism design is conducive to improve the working performance of the modeling machine.In this paper,the displacement analysis model of the double-toggle modeling mechanism is established by using the vector complex number method and the rod-length approximation constraint method.In this way,after the displacement requirements are satisfied,the structural parameters are optimized.With the swing angle of the moving platform and the vertical displacement at the rear end infinitely close to the ideal value in a single motion cycle as the object function,the constraint function is constructed based on the position requirements of the components in the working process and the existence conditions of the crank,then Matlab programming is used to solve the equations,so as to obtain the required dimensions of each moving component.In the following,the entity modeling and moving simulation are carried out with the optimized dimensions,and the simulation results are consistent with the theoretical calculation.In this way,the correctness of the formula and calculation program is verified.

关 键 词：肘杆 模切机构 位移 优化设计 

分 类 号：TH112[机械工程—机械设计及理论] TB486[一般工业技术—包装工程]