无人机灭火弹饰盖模流分析及注塑模具设计  

Moldflow Analysis and Injection Mold Design for UAV Fire-Fighting Grenade Cover

作　　者：张晓光[1] 程志超 孟枭 李顾学 ZHANG Xiao-guang;CHENG Zhi-chao;MENG Xiao;LI Gu-xue(School of Mechanical Engineering and Automation,Liaoning University of Technology,Jinzhou 121001,China)

机构地区：[1]辽宁工业大学机械工程与自动化学院,辽宁锦州121001

出　　处：《塑料科技》2024年第4期121-126,共6页Plastics Science and Technology

基　　金：辽宁省科学技术计划项目(2021-BS-261)。

摘　　要：以无人机灭火弹的饰盖为研究对象,利用Moldflow软件从灭火弹饰盖的填充时间、流动前沿温度、熔接痕、气穴、翘曲变化五个方面对两种浇口设计方案进行对比分析,得到最优的浇口方案,并对两种冷却系统进行模流分析,得到较优的冷却系统。经锁模力的数值计算和模流分析,选择符合成型要求的注射机,然后运用正交试验优化工艺参数,从而降低饰盖的体积收缩率,通过对塑件总体温度分布和剪切速率与体积分布进行验证,最终得到优化后的注塑模具结构。结果表明:通过Moldflow软件分析和正交试验,可提高无人机灭火弹饰盖模具的设计效率和质量,且优化后的注塑模具结构合理,工作可靠,可以有效减少试模的成本,满足生产需求。实验为类似模具的设计提供了参考。Taking the UAV fire-fighting grenade cover as the research object,Moldflow software was used to compare and analyze the two gate design schemes from five aspects such as filling time,flow front temperature,welding line,air pockets,and warpage change of the fire-fighting grenade cover,to get the optimal gate scheme.The two cooling systems were analyzed by Moldflow analysis,and the optimal cooling system was obtained by comparing the parameters after analysis.After the numerical calculation of clamping force and mold flow analysis,the injection molding machine meeting the molding requirements was selected,and then the orthogonal test was used to optimize the process parameters,so as to reduce the volume shrinkage rate of the decorative cap.The overall temperature distribution of the plastic part and the shear rate and volume distribution were verified,and finally the optimized structure of the injection mold was obtained.The results show that the analysis of Moldflow software and the results of orthogonal test can improve the design efficiency and quality of the UAV fire-fighting grenade cover mold,and the optimized injection mold structure is reasonable and reliable,which can effectively reduce the cost of the trial mold to meet the production requirements,and provide a reference for the design of similar molds.

关 键 词：灭火弹饰盖 模流分析 正交试验 注塑模具 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]