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摘要本课题完成节能型注塑机液压系统设计，包括液压系统的各组成部分的计算和控制系统的设计。塑料注射成型机是热塑性制品的成型加工设备，它将颗粒塑料加热熔化后，高压快速注入模腔，经过一定时间的保压和冷却后成型为塑料制品。任务内容具体包括注射成型原理及注射成型工艺过程分析、液压注塑机节能低耗高效的液压系统计算、工况分析、液压缸的计算、液压元件的选择、注塑机的PLC控制、绘制电控液控原理图与机械总装图等方面。先对注塑成型工艺过程进行分析，根据确定的参数制定系统方案和拟定液压系统图并选择液压元件，然后计算系统回路中的压力损失，来校验系统的性能，判别系统是否正确，并对液压缸各部分进行计算，最后根据塑料注射机的动作要求，选择出液压系统的各种油路和控制开关，又根据系统对速度、流量的要求，计算出零件的尺寸并利用软件进行相应的后续处理，用Microsoft visio绘制出液压系统的液控原理图与电控原理图，用AutoCAD绘制机械总装图。50807
毕业论文关键词：注塑机；液压系统；节能；计算
Abstract
Completion of the subject of energy-saving injection molding machine hydraulic system design, includes the mechanical part of the design of the hydraulic system and control system design. Plastic injection molding thermoplastic molding products processing equipment, it will granular plastic is melted by heating, high pressure quickly into the mold cavity, holding pressure after a certain time, cooled and molded plastic products. Design including the principle of injection molding and injection molding process, low energy efficient hydraulic injection molding machine hydraulic system design, operating conditions, the design of the hydraulic cylinder, hydraulic component selection, injection molding machine PLC control, drawing electronic control hydraulic control schematics and mechanical assembly diagrams. First injection molding process, formulated according to the determined parameter system programs and the intended hydraulic system and select hydraulic components, and then calculate the pressure loss in the system circuit to verify performance of the system, correctly discriminating system, and the hydraulic Half of each member structure design, the final design according to the requirements of the operation of the plastic injection molding machine, various oil passage of the hydraulic system and the control switch, and according to the system requirements for speed, flow, design and calculate the size of the parts and the use of software design and processing, the hydraulic system hydraulic control schematics and electrical control schematic diagram drawn with Microsoft Visio, AutoCAD drawings mechanical assembly diagrams.
Keywords: Injection molding machine; hydraulic system; Energy-saving; calculations
目 录
第一章 绪 论 - 1 -
1.1 注塑机概述 - 1 -
1.2 注塑机的分类 - 1 -
1.3 注塑机的工作原理 - 3 -
1.4 注塑机工作循环的具体过程 - 3 -
1.5 当代注塑机对节能特性的迫切需要 - 4 -
第二章 注塑机液压系统计算 - 5 -
2.1 注射机液压系统设计要求及有关设计参数 - 5 -
2.1.1 对液压系统的要求 - 5 -
2.1.2 液压系统设计参数 - 5 -
2.2 液压执行元件载荷力和载荷转矩计算 - 5 -