sz100800注塑机节能改造与动态特性研究毕业论文
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在查阅大量的国内外相关文献基础上，分析了注塑机的组成、工作原理和工作过程，在此基础上对节能系统进行全面的分析，提出了适合型号SZ-100/800全液压注塑机的节能改造方案，给出了伺服驱动液压系统，并对伺服控制元件进行了选型。根据矢量控ຫໍສະໝຸດ Baidu原理，建立了永磁同步电机的数学模型、液压泵控执行机构的数学模型、伺服驱动液压系统的数学模型和阀控液压缸数学模型，应用MATLAB/Simulink对伺服驱动系统和阀控液压缸系统分别进行仿真研究，通过分析结构参数转动惯量J、排量Dp、机构参数A1、 、 、V1、CP等参数对其系统动态性能的影响，对伺服驱动液压系统动态性能的改善提出了措施(减小转动惯量J、总泄露系数 、液压缸总容积V1、系统负载和增大排量Dp、油液体积弹性模量 等因素)，提高了系统的动态特性。实验与仿真结果对比，验证了模型建立的正确性。
本文针对企业大量的全液压驱动注塑机现状，分析了节能改造的可能性，给出了基于伺服驱动液压系统的注塑机节能改造方案。该系统采用高性能永磁同步电机驱动定量泵，通过改变永磁同步电机的扭矩和转速等参数来控制定量泵的输出流量和压力，进而达到调节执行元件速度的目的。该系统具有闭环控制灵活、控制精度高、调速范围广、高效、节能、低噪音等优点。在对现有全液压驱动注塑机节能改造的基础上，对伺服驱动液压系统的动态性能进行深入研究，为改善其系统动态性能和进一步拓展广泛应用打下基础。
According to the status of fully hydraulic driven Injection Molding Machine, this paper analysis all the possibilities of energy saving, then put forward the reform scheme for energy saving, based on the existing servo driven hydraulic system of Injection Molding Machine. Using high-performance permanent magnet synchronous motor driven by the dosing pump, the purpose of adjusting actuator speed will be achieved, by changing the parameters (torque, speed, etc.) of permanent magnet synchronous motor to control the pump output flow and pressure. The system has advantages of flexible closed-loop control, high control precision, wide speed range, high efficiency, energy saving and low noise, etc. Based on the energy saving of existing full hydraulic injection molding machine, this paper made the thorough research of dynamic performance of the servo-driven hydraulic system, in order to improve the dynamic performance of the system and lay the foundation for the further application.
SZ-100/800注塑机节能改造与动态特性研究
SZ-100/800InjectionMoldingMachineEnergyConservationTransformation andDynamicCharacteristicResearch
摘要
注塑机是塑料行业的重要生产设备，随着科学技术的不断进步，注塑机控制技术也随着工业技术的发展而日新月异。目前，国内注塑机的控制系统种类繁多，但是，在我国目前很多企业仍存在着大量的传统全液压注塑机。由于其生产过程电源供给功率基本不变，而不同工艺过程所需工作流量和压力不同，这种老式的注塑机其油泵的供油量却不能随之改变，因此产生了大量的能源浪费。鉴于注塑机应用越来越广泛和节能减排的需求，注塑机的机械结构、控制模式，以及工艺条件进行最小耗能优化设计成为必然趋势，对已有的注塑机进行节能改造具有较大的理论意义和工程实用价值。
研究结果表明，基于伺服驱动液压系统的注塑机节能改造方案是合理的，节能效果显著，达37%之多；合理的选用伺服驱动液压系统的结构参数能有效的改善系统的动态性能。
关键词：注塑机；伺服驱动液压系统；系统建模；结构参数；动态特性
论文类型：应用基础研究
ABSTRACT
The Injection Molding Machine is an important production equipment of plastics industry. Along with the progress of science and technology, the Injection Molding Machine control technology is also changing rapidly with the development of industrial technology. At present, there are so many different kinds of Injection Molding Machine control system in the domestic; however, a large number of traditional hydraulic Injection Molding Machine still exists in many enterprises in our country. In the producing process, the power supply power is basically unchanged, due to the difference of the flow and pressure, respectively, in different technological process, the fuel supply of the pump could not change in the pace of different flow and pressure, therefore, a large amount of energy are wasted. In view of the application of the Injection Molding Machine is more and more widely and the demand of energy saving, the mechanical structure, control mode, as well as the optimization design of the least energy consumption, become an inevitable trend, and the modification of existing Injection Molding Machine will be a great theoretical significance and practical value in the engineering.
本文针对企业大量的全液压驱动注塑机现状，分析了节能改造的可能性，给出了基于伺服驱动液压系统的注塑机节能改造方案。该系统采用高性能永磁同步电机驱动定量泵，通过改变永磁同步电机的扭矩和转速等参数来控制定量泵的输出流量和压力，进而达到调节执行元件速度的目的。该系统具有闭环控制灵活、控制精度高、调速范围广、高效、节能、低噪音等优点。在对现有全液压驱动注塑机节能改造的基础上，对伺服驱动液压系统的动态性能进行深入研究，为改善其系统动态性能和进一步拓展广泛应用打下基础。
According to the status of fully hydraulic driven Injection Molding Machine, this paper analysis all the possibilities of energy saving, then put forward the reform scheme for energy saving, based on the existing servo driven hydraulic system of Injection Molding Machine. Using high-performance permanent magnet synchronous motor driven by the dosing pump, the purpose of adjusting actuator speed will be achieved, by changing the parameters (torque, speed, etc.) of permanent magnet synchronous motor to control the pump output flow and pressure. The system has advantages of flexible closed-loop control, high control precision, wide speed range, high efficiency, energy saving and low noise, etc. Based on the energy saving of existing full hydraulic injection molding machine, this paper made the thorough research of dynamic performance of the servo-driven hydraulic system, in order to improve the dynamic performance of the system and lay the foundation for the further application.
SZ-100/800注塑机节能改造与动态特性研究
SZ-100/800InjectionMoldingMachineEnergyConservationTransformation andDynamicCharacteristicResearch
摘要
注塑机是塑料行业的重要生产设备，随着科学技术的不断进步，注塑机控制技术也随着工业技术的发展而日新月异。目前，国内注塑机的控制系统种类繁多，但是，在我国目前很多企业仍存在着大量的传统全液压注塑机。由于其生产过程电源供给功率基本不变，而不同工艺过程所需工作流量和压力不同，这种老式的注塑机其油泵的供油量却不能随之改变，因此产生了大量的能源浪费。鉴于注塑机应用越来越广泛和节能减排的需求，注塑机的机械结构、控制模式，以及工艺条件进行最小耗能优化设计成为必然趋势，对已有的注塑机进行节能改造具有较大的理论意义和工程实用价值。
研究结果表明，基于伺服驱动液压系统的注塑机节能改造方案是合理的，节能效果显著，达37%之多；合理的选用伺服驱动液压系统的结构参数能有效的改善系统的动态性能。
关键词：注塑机；伺服驱动液压系统；系统建模；结构参数；动态特性
论文类型：应用基础研究
ABSTRACT
The Injection Molding Machine is an important production equipment of plastics industry. Along with the progress of science and technology, the Injection Molding Machine control technology is also changing rapidly with the development of industrial technology. At present, there are so many different kinds of Injection Molding Machine control system in the domestic; however, a large number of traditional hydraulic Injection Molding Machine still exists in many enterprises in our country. In the producing process, the power supply power is basically unchanged, due to the difference of the flow and pressure, respectively, in different technological process, the fuel supply of the pump could not change in the pace of different flow and pressure, therefore, a large amount of energy are wasted. In view of the application of the Injection Molding Machine is more and more widely and the demand of energy saving, the mechanical structure, control mode, as well as the optimization design of the least energy consumption, become an inevitable trend, and the modification of existing Injection Molding Machine will be a great theoretical significance and practical value in the engineering.