絲網(wǎng)印花機(jī)系統(tǒng)設(shè)計

論文編號:JX1578  論文字?jǐn)?shù):12607.頁數(shù):34 附任務(wù)書，開題報告，外文翻譯,CAD圖

絲網(wǎng)印花系統(tǒng)設(shè)計
摘要：在自動印花設(shè)備結(jié)構(gòu)設(shè)計時，采用了外槽輪機(jī)構(gòu)帶動工作臺旋轉(zhuǎn)，并在印花機(jī)構(gòu)和推網(wǎng)機(jī)構(gòu)中采用螺旋機(jī)構(gòu)進(jìn)行傳動。最后成形時所包含的主要部件是底座、槽輪、銷子、螺桿、螺母、導(dǎo)軌、軸、工作臺等。需要對一些重要部件進(jìn)行強(qiáng)度校驗。
采用傳統(tǒng)的繼電器控制系統(tǒng)來實現(xiàn)電動機(jī)的控制與保護(hù)功能時，由于機(jī)械接觸點(diǎn)很多，接線復(fù)雜，因此傳統(tǒng)的控制方式已經(jīng)越來越滿足不了生產(chǎn)過程復(fù)雜多變的控制要求。
應(yīng)用PLC實現(xiàn)電動機(jī)的啟動與停止、正反轉(zhuǎn)、順序啟動、降壓啟動以及互鎖保護(hù)等功能，可以充分發(fā)揮PLC“軟接控制”的優(yōu)點(diǎn)、通過變成實現(xiàn)復(fù)雜的邏輯控制功能；另一方面，應(yīng)用PLC“軟觸點(diǎn)”來取代繼電器控制線路中的自鎖觸點(diǎn)、互鎖觸點(diǎn)以及時間繼電器觸點(diǎn)等，使得PLC控制系統(tǒng)的硬件接線得到了很大程度上的簡化，提高了系統(tǒng)的可靠性。因此，在電動機(jī)控制中，應(yīng)用PLC取代繼電器控制系統(tǒng)成為發(fā)展的必然。
在設(shè)計PLC控制系統(tǒng)時分為電路原理的設(shè)計，PLC流程圖和外部接線圖，以及梯形圖和程序的設(shè)計等。
本自動印花設(shè)備由可轉(zhuǎn)位的工作臺，可上下、左右移動的印花機(jī)構(gòu)，和可左右移動的推網(wǎng)機(jī)構(gòu)組成。通過各機(jī)構(gòu)的協(xié)調(diào)動作和控制系統(tǒng)的電路實現(xiàn)工作臺和印花機(jī)構(gòu)的邏輯動作，實現(xiàn)自動印花過程。自動化程度高、結(jié)構(gòu)簡單、控制方便，具有很高的實用價值和市場空間。

關(guān)鍵詞：自動印花  槽輪機(jī)構(gòu)  推網(wǎng)機(jī)構(gòu)  PLC控制系統(tǒng)

Screen printing system design

Abstract: The structural design of the automatic printing equipment used when driving outside the geneva mechanism rotating table, and network printing agencies and institutions to promote the use of screw drive bodies. Finally forming the main component is included in the base, tank rounds, pin, screw, nut, rail, shaft, table, etc.. Need to check the strength of some important parts.
   Traditional relay control system to achieve motor control and protection features, because a lot of mechanical contacts, terminal complex, the traditional control methods have become increasingly complex production process can not meet the control requirements.
   Application of PLC to achieve the motor start and stop, rotating, and the order of start, step-down start and interlock protection features, you can give full play to PLC "soft take control" of the merits, by the logic becomes complex control functions; another , the application of PLC "soft touch" to replace the relay control circuit in the self-locking contact, interlock relay contacts and other contacts, and time to make the hardware connection PLC control system has been largely simplified, improve the reliability of the system. Therefore, motor control, the application of PLC control system to replace relay as inevitable.
   In the design of PLC control system is divided into circuit design, PLC and external wiring diagram flow chart, and the ladder and procedures of design.
The automatic printing equipment can be transferred from the position of the table, can be up and down, move around in the printing sector, and can move around the push net institutions. Coordinated action by all agencies of the circuit and control system, the logical table and printing action, automatic printing process. High degree of automation, simple structure, easy to control with high practical value and the market space.

Keywords: automatic printing  Geneva Mechanism  push net institutions  PLC control system
目   錄
1  前言
1.1  選題的依據(jù)及意義.......................................... 1
1.2  國內(nèi)外研究概況及發(fā)展趨勢.................................. 1
1.3  PLC控制系統(tǒng)的發(fā)展概況.................................... 2
1.3.1國外PLC發(fā)展概況......................................... 2
1.3.2 技術(shù)發(fā)展動向............................................. 2
1.3.3 國內(nèi)發(fā)展及應(yīng)用概況....................................... 3
1.4.  設(shè)計要求及工作內(nèi)容....................................... 3
1.5． 目標(biāo)、主要特色及工作進(jìn)度................................. 4
2   整體機(jī)械結(jié)構(gòu)與旋轉(zhuǎn)工作臺的設(shè)計
2.1整體系統(tǒng)結(jié)構(gòu)分析............................................ 5
2.2.旋轉(zhuǎn)工作臺的部件分析....................................... 8
2.2.1 旋轉(zhuǎn)工作臺簡介........................................... 8
2.2.2 槽輪的結(jié)構(gòu)分析........................................... 8
2.2.3  滾動軸承類型的選擇..................................... 10
2.2.4  螺釘?shù)膹?qiáng)度校核......................................... 12
2.2.5 軸的校核................................................ 13
3   推網(wǎng)工作臺與磙子工作臺的結(jié)構(gòu)設(shè)計
3.1推網(wǎng)工作臺和磙子升降臺簡介................................. 14
3.2推網(wǎng)工作臺和磙子升降臺結(jié)構(gòu)................................. 15  
3.3推網(wǎng)工作臺和磙子升降臺部件分析..............................15
3.3.1滑動螺旋傳動的校核計算................................... 16
3.3.2聯(lián)軸器的選擇............................................. 19
3.3.3導(dǎo)軌的選擇............................................... 20
4   自動印花設(shè)備的控制系統(tǒng)
4.1可編程控制系統(tǒng)的基本結(jié)構(gòu)................................... 21
4.2自動印花設(shè)備的控制要求及印花工藝........................... 23
4.3控制系統(tǒng)設(shè)計及功能..........................................25
4.3.1 控制系統(tǒng)的構(gòu)成............................................25 
4.3.2主電動機(jī)的控制............................................26
4.3.3輸入、輸出地址分配，PLC外部接線圖和限位開關(guān)的位置.........28
4.3.4 軟件編程..................................................29
4.4總結(jié)與評價...................................................32
參考文獻(xiàn)......................................................32
致謝...........................................................33