【作者】 任峰；

【导师】 杨于光；

【作者基本信息】 北京化工大学 ， 机械设计及理论， 2008， 硕士

【摘要】 近年来,能源问题越来越多地受到人们重视,节能降耗也成为政府评价企业优良的主要指标。而随着注塑机的不断改进发展,注塑机的能耗问题也日趋凸现出来。如何提高注塑机性能,开发节能型注塑机,成为生产企业提高市场竞争力的主要因素。本文主要研究了注塑螺杆参数变化对塑化单产能耗的影响。本文对注塑螺杆计量段长度L₃（螺杆长径比）、螺距S、槽深h₃（螺杆压缩比）及螺棱顶部距机筒内壁间隙δ四个因素建立正交试验表,通过ProE软件建立螺杆计量段模型,用Gambit进行螺杆和流道的有限元网格划分,通过流体有限元分析软件POLYFLOW模拟分析了它们对注射机塑化单产能耗的影响。建立注塑成型机实验台测试系统,对注射成型机塑化能耗进行测量。通过加装传感器,对注塑机螺杆转矩、功率和转速以及电机功率进行实时在线测量。设计加工模拟的9根螺杆,对螺杆参数变化与注塑机塑化单产能耗关系进行了实验研究。结合实验结果,运用正交实验表通过极差分析、综合比较找出计量段长度L₃（螺杆长径比）、螺距S、槽深h₃（螺杆压缩比）及螺棱顶部距机筒内壁间隙δ对塑化单产能耗影响的大小,同时结合螺杆的混合性能,与模拟结果综合比较,最后给出了在混合性能最优情况下能耗最低的螺杆参数,为实际生产中设计节能型螺杆提供了参考,对实际生产有一定的指导意义。更多还原

【Abstract】 In recent years, more and more energy problems cause people’s attention, the energy consumption has also become the key indicators the government evaluates the enterprises whether they are excellent or not. With the continuous improvement of injection molding machines, the energy problems are becoming increasingly emerged. How to improve the performance of injection molding machines and develop energy-saving injection molding machines become the main factors for the production enterprises to improve the market competitiveness.This paper studied the effect of screw parameters on plastizing uniproducing energy consumption of injection molding machine.The orthogonal test was established for the slot depth h₃, length L₃, screw distance S of injection screw measurement segment and the apertureδ between screw and barrel inner-wall. By using the software ProE established the screw models, then division into finite element mesh by Gambit. And last through well know fluid element analysis software POLYFLOW, analyzed the effect of these four factors on plasting energy consumption.Established the testing system for injection molding machine. Measure the screw torque and motor power on-line throw the installed sensors.Then designed and processed the nine simulation screws, then studied their effect throw experiment. With the experimental result, using the orthogonal test identified the order of the factors, including depth h₃, length L₃, screw distance S of injection screw measurement segment and the apertureδ, on plasting energy consumption. Finally, combined with the mixing ability and simulation result we got the optimal screw parameters. For designing and producing the energy-saving screw, the result provides a reference.更多还原