塑料管道热熔焊机系统开发

材料成型及控制工程论文，论文编号:JX1360  论文字数:12506.页数:35

摘  要
 本论文阐述了热塑性塑料的物理性能,分析了塑料焊接中温度、压力、时间等参数对熔接质量的影响,介绍了对接焊机的基本构成及工作原理。重点探讨了塑料对接焊机液压系统集成化设计和用PID实施温度控制,保证塑料管道的焊接质量。提出熟料管道热熔焊机系统的开发设计，塑料压力管道热熔对接焊的工艺参数随管道尺寸和环境条件的不同而不同,同时还受人为因素的影响。因此利用液压系统来完成焊接的四个阶段及提供各阶段所需的不同压力;利用工控机控制焊接温度、时间及液压缸的动作,以及根据管道参数和环境条件自动选择和校正焊接参数,消除人为因素的影响,提高焊接量。主要工作就是对控制柜的尺寸设计，使其空间最优化。完成控制电路的设计，挑选合理的电器元件，使成本最小化，功能最优化，再进行控制界面程序和驱动模块的编译。
关键词：对接焊机  控制系统 塑料压力管道 控制柜 电路设计 界面程序

Abstract
This text expatiated the physics function of the hot the plastics of plastic, analyzing the plastics weld the inside temperature, pressure, time. Parameter to connect the influence of the quantity to the , introducing to butt fusion welding machine basic to constitute and work the principle. The point inquiried into the plastics to connect the welding machine liquid press the system gathers turn the design with puts with the PID into practice the temperature control, guaranteeing the welding quantity of the plastics piping. It is also about the development of plastic pipe butt fusion welding machine system，introducing the basic structure and the working principle butt fusion welding machine. Parameters of butt fusion welding of plastic pressure-pipe are different for varying pipe diameters and ambient conditions, and it is also affected by personal factor. Therefore, in this paper, four stages of the welding process were driven and the welding compress inforce was supplied by hydraulic system. In order to remove human element to improve the welding quality,the welding temperature，time and operation of hydraulic cylinder were controlled by IPC, and welding parameters were selected andadjusted automatically according to pipe parameters and ambient conditions. The main task is to design the size of  control counter, to optimize the space. Complete control circuit design, selection of a reasonable electrical components, to minimize costs, most optimized. Then compiler control interface procedures and drive module  programmr. 
 
Keywords: Pressurized plastic pipe；Butt fusion welding machine ；Control system
Control counter；Circuit design；Interface program

目录
摘 要 i
Abstract ii
第一章 绪论 1
第二章 焊接机控制系统设计 4
2.1 功能要求 4
2.2 机械系统设计 4
2.3 液压控制原理 5
第三章 控制电路设计 11
3.1 控制柜设计 11
3.2 强电设计 12
3.3 弱电设计 13
第四章 控制程序设计 16
4.1 功能界面设计 16
4.2 PCL818应用 19
4.2.1 开关和跳线的设置 19
4.2.2 基址的选择 19
4.2.3 定时器时钟选择 20
4.2.4 D/A基准电压选择 20
4.2.5 模拟输入功能测试 20
4.2.6 模拟输出功能测试 21
4.2.7 数字量输入功能测试 22
4.2.8 数字量输出功能测试 23
4.3 XMT-7W四位智能数显调节仪及其控制 24
4.3.1 仪表操作说明 24
4.3.2 仪表安装与接线 26
第六章 总结 28
致 谢 31