摘 要

工業(yè)電鍍生產(chǎn)線工位多、生產(chǎn)復(fù)雜,同時(shí)在電鍍中，其氧化、酸洗、堿洗、電鍍等許多工藝具有嚴(yán)重的化學(xué)污染和腐蝕，對人的身心健康十分不利，而且人工操作隨機(jī)性大，影響產(chǎn)品質(zhì)量。采用可編程控制器PLC可實(shí)現(xiàn)自動(dòng)控制。PLC控制電鍍生產(chǎn)線，和以往系統(tǒng)相比有以下突出的特點(diǎn)：抗干擾能力大為提高，控制精度準(zhǔn)確，提高了產(chǎn)品質(zhì)量；由于采用了程序的設(shè)計(jì)方法，可以根據(jù)工藝要求迅速靈活的改變生產(chǎn)流程，系統(tǒng)擴(kuò)充方便。同時(shí)該系統(tǒng)維護(hù)簡單，使用方便，提高了生產(chǎn)效率，降低了工人勞動(dòng)強(qiáng)度。
本文介紹了當(dāng)前電鍍生產(chǎn)線發(fā)展的現(xiàn)狀以及我國電鍍生產(chǎn)線面臨的挑戰(zhàn)和對策；對可編程控制器（PLC）加以研究，介紹了PLC的工作原理、使用注意事項(xiàng)以及PLC的發(fā)展；并以這些為基礎(chǔ)重點(diǎn)講述了PLC在電鍍生產(chǎn)線上的應(yīng)用，針對電鍍生產(chǎn)線中的前處理生產(chǎn)線，分析研究其工藝以及控制要求，選擇PLC，遵循PLC設(shè)計(jì)的基本原則，利用PLC進(jìn)行全自動(dòng)電鍍生產(chǎn)線中的前處理生產(chǎn)線進(jìn)行控制系統(tǒng)的開發(fā)設(shè)計(jì)。


關(guān)鍵字：可編程控制器，電鍍生產(chǎn)線，控制系統(tǒng)，電鍍工藝















ABSTRACT

Industrial plating production lines workers in electroplating, production complex,At the same time，its oxidation, acid, caustic washing, electroplating process, and so many have a serious chemical pollution and erosion of the very adverse physical and mental health in electroplating,And manual random, affect product quality，PLC can be used to achieve control. PLC control plating production lines, compared to the previous system have the following prominent features: anti-interference capability greatly improved, accurate control accuracy, improved product quality; As a result of the design process, in accordance with requirements of the rapidly changing production processes flexible , The system expanded convenience. At the same time maintaining the system simple, easy to use, improve productivity and reduce labor intensity of the workers.
This paper describes the current plating production lines and development of the status quo of China's plating production line facing the challenges and responses; the programmable logic controller (PLC) to study, on the PLC's working principle, the use of attention, as well as the development of PLC, and these Focus on the basis of the PLC in plating production line applications, for plating production line in the pre-treatment production lines, analysis of its technology and control requirements, select the PLC, follow the basic principles of design, use of PLC for automatic plating production lines in the former Production Line of Control System Development and Design.


Key words：PLC, plating production lines, control systems, plating process











目 錄

中文摘要 Ⅰ
ABSTRACT Ⅱ
1緒論 1
1.1 研究背景和意義 1
1.2 電鍍生產(chǎn)線國內(nèi)外研究現(xiàn)狀 2
1.3 論文的研究內(nèi)容 3
2可編程控制器的研究 4
2.1 PLC的定義及其特點(diǎn) 4
2.2 PLC的基本構(gòu)成 5
2.3 PLC的基本工作原理及其使用的注意問題 7
3.3.1 PLC的基本工作原理 7
3.3.2 PLC應(yīng)用中需要注意的問題 7
2.4 PLC的應(yīng)用領(lǐng)域 8
2.5 PLC的國內(nèi)外狀況及其未來展望 9
2.6本章小結(jié) 11
3電鍍生產(chǎn)線控制系統(tǒng)的設(shè)計(jì) 12
3.1前處理生產(chǎn)線 12
3.2系統(tǒng)控制要求 13
3.3 PLC控制系統(tǒng)的設(shè)計(jì)分析 18
3.3.1 PLC控制系統(tǒng)設(shè)計(jì)的基本原則 18
3.3.2 PLC控制系統(tǒng)的設(shè)計(jì)主要內(nèi)容 18
3.3.3 PLC控制系統(tǒng)的設(shè)計(jì)的基本步驟 19
3.4 電鍍生產(chǎn)線PLC控制系統(tǒng)的設(shè)計(jì) 19
3.4.1選擇PLC 19
3.4.2 PLC規(guī)模的估算 20
3.4.3 PLC 輸入輸出模塊的選擇 20
3.5控制系統(tǒng)程序設(shè)計(jì) 22
3.6本章小結(jié) 30
4結(jié)論和展望 31
致謝 32
參考文獻(xiàn) 33

附 錄 34