胶带涂布机的张力控制模块

论文编号:JX962  论文字数:20424.页数:61   附任务书，开题报告，文献综述，外文翻译

摘    要
 随着社会的发展，胶带在社会生产、生活中发挥着越来越重要的作用。但我国的胶带生产却还处于落后阶段。当我们还在努力研究一些质量较低涂布技术和干燥装置时，国外不仅有了先进涂布技术和干燥装置，以及较高的车速，而且已经对张力自控系统、胶带的校正、传动系统及自动控制等多方面有了深入的研究和发明，并投入了生产。
 本毕业设计主要针对就是胶带涂布机的张力控制模块。为了连续稳定的生产和产品质量的提高，涂布机作业中胶带张力的稳定是非常必要的。作业中胶带每段的张力要求是不一样的，如烘干阶段，希望张力低些，以利于纸幅的收缩。本设计应用张力检测装置和自控系统，来保证胶带张力的稳定。
 另一方面，本设计主要是对工厂现有的机器进行改造。我国旧的生产设备有上千台,如果对这些设备进行技术改造,将会极大地提高原有设备的生产能力。同时为国家、企业节约大量资金。而且通过此次胶带涂布机的张力控制模块的设计，可以为以后的新型涂布机设计打下一个良好的基础。
 据工厂的实地考察，以及国内工厂现有涂布机设备的使用情况来看，现有设备主要存在着两大缺点：一、开环控制；二、速度难调。针对以上主要缺点，并结合工厂的实际场合以及经济效率等多方面因素，可初步拟定张力模块控制的设计方案，最后进行比较，得出最适合我国目前工厂采用的方案。
 当牵引带电机（收卷处）间歇式工作时，由于有升、减速且储料辊上下移动时胶带的运动方向与垂直线夹角有变化，造成胶带张力较大幅度变化。因此，当干燥室温度较高时，胶带就特别容易拉伸。针对这一问题，采用张力传感器检测收卷处的胶带张力值，根据张力值的大小来控制气缸的动作，使收卷处的张力值保持基本恒定，以减少胶带的拉伸。
 系统采用闭环控制，由张力检测装置反馈信号构成闭环调节。当张力检测装置将信号传输给中央处理器，经过逻辑处理，将信号传输给执行装置，迫使气缸上升或下降，从而使胶带的张力在允许范围内，达到张力控制的目的
 关键词：张力控制  涂布技术  涂布机  闭环控制 

The Tension Control System Design Of Tape Coating Machine

Abstract
 With the development of society, tape is playing an increasingly important role in social production and life. However, its production in China is still in a backward stage. When we are working hard on a number of low quality coating and drying device, foreign countries are already had not only advanced technology and dry coating devices, but high speed, not only have in-depth research and invention but also put automatic control system, correction tape, transmission and automatic control and other aspects into production.
 This paper is mainly studying the tape coating machine for tension control module. In order to stabilize production and continuous improvement of product quality, coating machine, tape tension and stability operations is necessary. Each piece of work in the tape tension is not the same requirements, such as the drying stage, hoping tension lower, to facilitate the rate of contraction of paper. In here I want to use tension detection device and automatic control system to ensure the stability of tape tension.
 On the other hand, the design of the plant is mainly to transform the existing machines. China has thousands of old sets, if transform these devices, the capacity of existing equipment will greatly improve. it will also save a lot of money for the state and enterprises at the same time. And it will lay a good foundation for the future design of new coating machine.
 According to the factory site visits, as well as domestic factories to use the existing coating machine equipment situation, there are two major drawbacks: First, open loop control; second, speed difficult to reach. The main drawback for the above, and the actual situation and the plant's economic efficiency and other factors, may get the initial development of tension module design. By the final comparison, get the most suitable option for the factory in China currently.
 When the traction belt motor (winding Office) intermittent work, due to rise, slow down and move up and down roller storage tape movement direction and the vertical angle has changed, resulting in a more substantial change in belt tension. Therefore, when the drying chamber temperature is high, tapes are particularly vulnerable stretch. To solve this problem, using tension sensors detect the winding tension value tape, according to the size of the value to control the tension cylinder action, so that the value of winding tension Department maintained almost constant, to reduce the tape tension.
 System uses closed loop control, feedback signals from the tension detecting device constitutes a closed-loop regulation. When the tension detection device will signal transmission to the central processing unit, through the logical processing, the signal transmission to the implementation of the device, forcing the cylinder up or down, so that the belt tension within the allowable range, to reach tension control.
Keywords：Tension Control  Coating Technology  Coating Machine  Closed-loop control 

目  录
第一章 绪 论 1
1.1 胶带简介 1
1.2 涂布机在国外的发展状况 1
1.2.1 涂布装置 1
1.2.2 干燥装置 2
1.2.3 退纸卷取及换卷的拉动接纸装置 2
1.2.4 张力自控系统 3
1.2.5 胶带的校正 3
1.2.6传动系统及自动控制 3
1.3 涂布机的国内发展现状 3
1.3.1 涂布装置 4
1.3.2 干燥装置 5
1.4 对国内涂布机发展的总结 6
第二章 控制方案设计 8
2.1 对国内现有旧设备的分析 8
2.2涂布机的张力控制方案 8
2.2.1 张力控制方案一 9
2.3.2 张力控制方案二 10
2.3 张力控制方案的对比及确定 10
2.4 控制系统的设计 11
2.5 PLC控制系统硬件的组成选定 13
2.6 系统框架图及各接线图 19
2.7 触摸屏、控制面板的设计及电源连接示意图 21
第三章 控制软件系统设计 28
3.1 主程序及其功能说明 28
3.2 手动/自动流程图及其功能说明 36
第四章 特殊功能模块调试以及资源分配清单 38
4.1 特殊功能模块 38
4.1.1 4AD调试程序 38
4.1.2 4DA调试程序 39
4.2 资源分配清单 40
第五章 总结 46
参考文献 47
致  谢 49

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