基于最小速比偏差的注塑机双曲肘合模机构优化设计
PDF下载 (4053)董凌波,张哲衍,李国平,陈星欣,娄军强,柳 丽.基于最小速比偏差的注塑机双曲肘合模机构优化设计[J].宁波大学学报(理工版),2021,34(1):39-44.DOI:
DONG Lingbo,ZHANG Zheyan,LI Guoping,CHEN Xingxin,LOU Junqiang,LIU Li.Optimal design of double toggle clamping mechanism of injection molding machine based on minimum speed ratio deviation[J].Journal of Ningbo University(Natural Science & Engineering Edition),2021,34(1):39-44.DOI:
| Title: | Optimal design of double toggle clamping mechanism of injection molding machine based on minimum speed ratio deviation |
| 作者: | 董凌波, 张哲衍, 李国平, 陈星欣, 娄军强, 柳 丽 |
| Author(s): | DONG Lingbo, ZHANG Zheyan, LI Guoping, CHEN Xingxin, LOU Junqiang, LIU Li |
| 关键词: | 注塑机; 双曲肘内翻式; 合模机构; 最小速比偏差; 多目标优化 |
| Keywords: | injection molding machine; double elbow inversion; clamping mechanism; minimum speed ratio deviation; multi-objective optimization |
| 分类号: | TQ320.5 |
| 文献标识码: | A |
| 摘要: | 注塑机合模机构的性能直接影响注塑制件的质量、效率以及注塑设备的寿命. 以企业指定380T锁模力的双曲肘合模机构为研究对象, 提出将肘杆机构原型速比曲线与理想速比曲线的最小偏差值加入优化函数, 结合机构总长、行程比、力放大比等进行多目标优化设计, 并进行仿真验证. 结果表明: 在合模机构总长、移模行程满足要求的基础上, 力放大比增大12.24%, 临界角处速比降低14.49%, 且合模周期减少6.6%, 可有效提升合模机构的综合性能. |
| Abstract: | The performance of the clamping mechanism of injection molding machine directly affects the quality and efficiency of the injection-molded parts and the life of the injection molding equipment. In this paper, the double toggle clamping mechanism with 380T clamping force specified by the enterprise is taken as the research object. The minimum deviation between the speed ratio curve of the existing toggle mechanism and the ideal speed ratio curve is introduced to the optimization objective function and is combined with other three objectives i.e. the total length of the mechanism, the stroke ratio and the force amplification ratio, to form a multi-objective optimization design. The simulation results show that, under the premise of the overall size and the shifting stroke meeting the requirements, the force amplification ratio increases by 12.24%, the speed ratio at the closing and opening of the mold decreases by 14.49%, and the mold clamping cycle is reduced by 6.6%, hence the overall performance of the mold clamping mechanism is effectively improved. |
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| 备注/Memo: | 收稿日期: 2020－06－10. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/基金项目: 宁波市“科技创新2025”重大专项科技攻关项目（2018B10082）.第一作者: 董凌波（1995－）, 男, 浙江嘉兴人, 在读硕士研究生, 主要研究方向: 机构设计与分析. E-mail: 18868081924@163.com*通信作者: 柳丽（1968－）, 女, 甘肃民勤人, 副教授, 主要研究方向: 机构设计与分析等. E-mail: liuli@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
