本文選題：調(diào)光膜合膜機(jī) + 薄膜傳輸系統(tǒng)張力控制　； 參考：《中北大學(xué)》2017年碩士論文

【摘要】：隨著液晶顯示行業(yè)的發(fā)展,具有特殊性能的電控調(diào)光膜在多個(gè)領(lǐng)域得到了廣泛應(yīng)用,由高分子分散液晶技術(shù)PDLC(Polymer Dispersed Liquid Crystal)制備而成的電控調(diào)光膜成為液晶行業(yè)研究的熱點(diǎn)。本文在分析調(diào)光膜制備工藝以及合膜機(jī)的機(jī)構(gòu)工作原理的基礎(chǔ)上,對(duì)合膜機(jī)卷繞系統(tǒng)的張力控制及軋輥的接觸問(wèn)題展開(kāi)分析,并對(duì)合膜機(jī)的電氣控制系統(tǒng)進(jìn)行了設(shè)計(jì)。首先,本文介紹了調(diào)光膜的制備過(guò)程,對(duì)調(diào)光膜的典型工藝(如放料,壓合,紫外固化等),和其涉及到的相關(guān)機(jī)械結(jié)構(gòu)進(jìn)行了分析研究。對(duì)各機(jī)構(gòu)進(jìn)行了總體分析。其次,對(duì)合膜機(jī)張力系統(tǒng)進(jìn)行了設(shè)計(jì),包括張力控制系統(tǒng)總體方案,發(fā)料裝置動(dòng)力學(xué)分析,張力系統(tǒng)的控制分析等。分析結(jié)果表明,執(zhí)行機(jī)構(gòu)磁粉制動(dòng)器的輸出轉(zhuǎn)矩與發(fā)料卷卷徑成線性關(guān)系。提出了一種通過(guò)調(diào)節(jié)張力控制器的電磁轉(zhuǎn)矩來(lái)控制ITO導(dǎo)電膜的機(jī)械裝置使得傳輸系統(tǒng)保持恒定張力,實(shí)現(xiàn)對(duì)磁粉制動(dòng)器的制動(dòng),調(diào)節(jié)其電磁轉(zhuǎn)矩來(lái)控制ITO導(dǎo)電膜傳輸保持恒張力的方法。然后,針對(duì)壓合工藝中出現(xiàn)的壓合不勻的狀況,對(duì)軋輥進(jìn)行了有限元仿真分析,發(fā)現(xiàn)接觸區(qū)軋輥的最大軸向應(yīng)力3Pa,接觸時(shí)橡膠層最大變形0.01mm,切向發(fā)生0.3 m的滑動(dòng)位移。對(duì)軋輥模態(tài)分析,結(jié)果表明其共振頻率為1350Hz,與系統(tǒng)工作頻率差距較大,有效避免了共振現(xiàn)象。針對(duì)薄膜壓合后出現(xiàn)的云層以及軋輥彈性橡膠層部分的磨損問(wèn)題,對(duì)軋輥結(jié)構(gòu)進(jìn)行了優(yōu)化。最后,對(duì)調(diào)光膜合膜機(jī)的電氣控制系統(tǒng)進(jìn)行了設(shè)計(jì),包括主控電路和其他模塊的控制電路以及人機(jī)界面進(jìn)行設(shè)計(jì)。生產(chǎn)結(jié)果表面,該合膜機(jī)可以實(shí)現(xiàn)調(diào)光膜的生產(chǎn)基本功能,并且生產(chǎn)出的調(diào)光膜具備了通電透明,斷電模糊的性能。
[Abstract]:With the development of liquid crystal display industry, electrically controlled dimming films with special properties have been widely used in many fields. The electrically controlled dimming films prepared by Polymer Dispersed liquid Crystal (PDLC) have become the focus of research in liquid crystal industry. Based on the analysis of the preparation process of dimming film and the working principle of the mechanism of the film closing machine, the tension control of the winding system and the contact problem of the roll are analyzed in this paper, and the electrical control system of the film closing machine is designed. Firstly, the preparation process of dimmer film is introduced. The typical process of dimmer film (such as discharge, pressing, UV curing etc.) and the related mechanical structure are analyzed and studied. The overall analysis of each organization is made. Secondly, the tension system of the film machine is designed, including the overall scheme of tension control system, the dynamic analysis of the feeder, the control analysis of the tension system and so on. The results show that the output torque of the actuator magnetic powder brake is linearly related to the coil diameter. A kind of mechanical device which can control the ITO conductive film by adjusting the electromagnetic torque of the tension controller makes the transmission system keep constant tension and realize the braking of the magnetic powder brake. The method of adjusting its electromagnetic torque to control the transmission of ITO conductive film to maintain constant tension. Then, according to the unevenness of compaction process, the finite element simulation analysis of the roller is carried out. It is found that the maximum axial stress of the roller in the contact zone is 3 Pa. the maximum deformation of the rubber layer is 0.01 mm and the sliding displacement is 0.3 m in the tangential direction. The results of modal analysis show that the resonance frequency of the roller is 1350Hz, which is different from the operating frequency of the system, and the resonance phenomenon is avoided effectively. The roll structure was optimized in view of the wear problem of the cloud layer and the elastic rubber layer of the roll after the film was pressed. Finally, the electrical control system of dimmer film closing machine is designed, including the control circuit of main control circuit and other modules, as well as the design of man-machine interface. On the surface of the production result, the dimmer can realize the basic function of dimming film, and the dimmer film has the properties of transparent electrification and blurry power off.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TP273

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6 孫s，

本文編號(hào)：2105121