导 师: 陈凌珊
学科专业: 080202
授予学位: 硕士
作 者: ;
机构地区: 广东工业大学
摘 要: 可编程控制器/(PLC/)作为控制系统的核心装置,功能强大、性能稳定可靠。在现代工业自动化生产中得到了广泛的应用。取得了理想的控制效果。 本论文以东莞佳鸣机械制造有限公司与我们合作开发的高速全自动卷纸包装机控制系统为背景,理论与实践相结合,详细阐述了集PLC技术,变频器技术,光电感应技术,通信技术于一体的先进控制技术在该包装机控制系统中的应用。论文主要内容如下:1.概述了可编程控制器PLC的现状及其在包装机械上应用的可能性和前景。2.通过对卷纸包装机生产工艺流程的了解,统计其输入输出I/O点,然后进行PLC选型,硬件组态的设计。3.详细分析了包装纸放卷过程中的受力/(尤其是张力/)情况,并建立了数学模型,利用自适应控制原理实现了送料过程中的张力控制。4.在卷纸包装机中,卷纸和包装纸要求能同时到达工位1,这就产生了送料过程中的同步控制问题,在同步控制中,我们在卷纸供送系统的驱动轴上安装一个半圆形金属片,在侧面装上接近开关探头,通过判断每次光电传感器检测到色标时接近开关的输出状态,就能知道包装纸供送系统是滞后还是超前于卷纸供送系统,从而使伺服电机正、反转或不动,实现了送料过程中的同步控制。5.卷纸的包装是一个典型的顺序控制,因此我们利用一个移位寄存器,使工艺盘的每一个V形槽对应一个二进制位,通过移位寄存器的移动,实现了包装过程的程序控制。6.利用Siemens公司的编程软件Step7、监控组态软件WinCC及其通信功能设计了包装过程梯形图、STL语句及PLC通信网络,以完成数据的采集并控制输出设备安全、高速、高效地运行,实现了该包装过程的监视功能。 经过我们的努力,卷纸包装机控制系统的设计已经完成.� This thesis mainly discussed the design of control system of roll packing. As the kernel device control system, PLC is widely used in modern industrial production and do well in this field. This thesis takes the control system of the high-speed full-automatic roll packing machine that was developed by Dongguan Jiaming Machine Manufacturing Limited Company along with us as a background. We apply the advanced control technique in the packing machine control system such as the technique of PLC, the inverter technique, light electricity technique and so on. By using these techniques, we realized tension control, Synchronous control in transmitting process and packing process program control. To complete the data of collecting and control the output equipments to work safely, high speed and efficiently, we designed the PLC correspondence network by using the WinCC, a supervise control and configuration software of the company of Siemens, and its communication function, to realize the surveillance function of the packing process. The machine got the exaltation of the quality whether the function or the efficiency, basically came to the international advanced level in the late of 90's, realized well the control request that the company put forward. This control system is well running in the lab.
领 域: [一般工业技术]