Gravure press as an important printing technology has broad application .At present, the domestic leading gravure press machine is low degree of automation and the printing speed is slow, which isn’t satisfied to the high-precision demand of printing machine market. And as the development of high-performance microprocessors ,it is possible to design an efficient high-precision measurement and control system to the chromatography.
The domestic traditional plate automatic detection system was not stable in the loop of control system and also a serious lag in response. To solve these problem, an original measurement and control system to chromatography is designed which use microprocessor as the core of the control system to complete the high efficient and high precision operation. And the system has high- performance and low- cost advantage. The measurement and control system use dual-spot optical scanning machine to detect the color error, and the error signal, after the amplification and filtering ,sent into the microprocessors ,which calculate the account of error correction and drive the motor to revise the error. This not only simplifies the circuit, but also improve the system stability and real-time control and facilitate a future upgrade.
This article first reviewed the printed technical background , as well as the issues of stability and real-time control. Then, put forward a project a which use 80C196KC as the core of the measurement and control system of chromatography, and the corresponding hardware circuit diagram and program design. Finally, brief analyze the control strategy of the system. The system in this thesis compared with other chromatography system is more simple in structure, the adjustment is more accurate, the respond speed is faster and this system is greatly improved the accuracy and efficiency of intaglio printing.
Keywords: Gravure Press； error detection ; optical isolation; 80C196KC single-chip
目 录
中文摘要 Ⅰ
英文摘要 Ⅱ
目录 Ⅲ
第一章 绪论 1
1.1 引言 1
1.2 国产凹版印刷的现状及存在的问题 1
1.2.1 国产凹版印刷的现状 2
1.2.2 国产凹版印刷存在的问题 2
1.3 国产凹印存在的套色问题 3
1.4 本课题的目的及设计内容 3
1.5 本章小结 4
第二章 对版测控系统的总体方案及分析 5
2.1 系统的总体结构 5
2.2 套印误差检测 5
2.2.1 色标的标定 6
2.2.2 双光电头检测原理 7
2.2.3 误差的提取 8
2.3 计算机微处理器 8
2.3.1 80C196KC功能图 8
2.3.2 80C196KC功能分析 9
2.4 驱动执行机构 13
2.5 印刷中的纸带张力对套印的影响 13
2.6 本章小结 14
第三章 对版测控系统的硬件电路设计及软件设计 15
3.1 对版测控系统的硬件电路设计 15
3.1.1 套印信息数据采集电路模块 15
3.1.2 光电隔离电路设计 16
3.1.3 计算机微机处理模块 19
3.1.4 驱动执行电路 20
3.2 系统的程序框图设计 21
3.3 本章小结 24
第四章 控制算法设计 25
4.1 PID控制及参数的整定 25
4.1.1 比例调节器—比例的作用 26
4.1.2 比例积分调节器—积分的作用 26
4.1.3 比例微分调节器—微分的作用 27
4.2 对版测控系统控制方式的确定 27
4.2.1 Smith PID控制 28
4.3本章小结 29
第五章 结论 30
参考文献 31
致谢 33
附录1 80C196KC外围引脚图 34
附录2 硬件电路总图 35
