基于实例的注塑模设计与成型工艺优化

发布时间：2018-01-05 07:15

本文关键词：基于实例的注塑模设计与成型工艺优化　出处：《湖北工业大学》2017年硕士论文　论文类型：学位论文

更多相关文章： 注塑模具 UG Moldflow 工艺优化

【摘要】：模具是衡量一个国家制造水平的重要标志,是国民经济的支柱产业之一。注塑模具作为模具行业的重要组成部分,其设计水平的高低直接影响着塑胶产品的质量和效益。伴随着工业的发展,全面推广CAD/CAE技术已成为注塑模具发展的必然趋势。本文简单介绍了国内外注塑成型技术的研究现状及发展趋势,以及影响注塑成型技术的相关因素,重点对放大镜塑件进行了注塑模具设计和注塑成型过程的有限元分析。使用UG NX8.5软件进行塑件的三维建模,通过mold wizard模块中项目初始化、模具分型、加载模架、浇注系统设计、脱模机构设计、冷却系统设计和模具装配图等功能的使用,详细解读了注塑模具设计的整个流程。运用Moldflow软件对放大镜塑件进行注塑成型过程的模拟分析,通过相关工艺参数的设置,重点对流动阻力分析、充填时间、流动前沿的温度变化、顶出时的体积收缩率、冷却回路的温度变化、翘曲变形等过程进行了注塑模拟仿真和数据分析,并且对注塑成型过程中,可能引起的气穴、熔接线等成型缺陷进行了成因分析,为浇注系统和冷却系统的设计奠定了理论基础。通过对放大镜模具设计的模流分析过程,提出了基于模流分析对塑胶产品模具浇口的优化设计方法。设计结果表明,此方法缩短了产品开发周期,对于塑胶类产品模具的设计评估具有重要的工程参考意义和较好的应用价值。
[Abstract]:Mold is an important symbol to measure the manufacturing level of a country, is one of the pillar industries of the national economy. Injection mold as an important part of the mold industry. The level of design directly affects the quality and benefit of plastic products, which is accompanied by the development of industry. Popularizing CAD/CAE technology has become an inevitable trend of injection mold development. This paper briefly introduces the research status and development trend of injection molding technology at home and abroad. As well as the related factors affecting injection molding technology, the emphasis is placed on the design of injection mold and the finite element analysis of injection molding process for magnifying glass plastic parts. The 3D modeling of plastic parts is carried out with UG NX8.5 software. Through the mold wizard module in the project initialization, die parting, loading mold frame, gating system design, mold removal mechanism design, cooling system design and mold assembly drawing and other functions. The whole process of injection mold design is explained in detail. The simulation analysis of injection molding process of magnifying glass plastic parts is carried out by using Moldflow software, and the setting of relevant process parameters is adopted. The flow resistance analysis, filling time, temperature change of the flow front, volume shrinkage of the ejection, temperature change of the cooling loop, warpage and other processes are simulated and analyzed. And the causes of formation defects such as cavitation and welding line are analyzed in the process of injection molding. It lays a theoretical foundation for the design of the gating system and the cooling system. The mold flow analysis process of the magnifying glass die design is carried out. An optimization design method for mold gate of plastic products based on mold flow analysis is proposed. The design results show that the method shortens the product development cycle. It has important engineering reference significance and good application value for the design and evaluation of plastic product mould.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TQ320.52

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