本文選題：壓電驅(qū)動　切入點：噴墨頭　出處：《大連理工大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：壓電驅(qū)動式噴墨打印機是基于逆壓電效應(yīng)工作的,由于其響應(yīng)速度快、非接觸性、高分辨率等優(yōu)點得到了廣泛的應(yīng)用。目前市場上使用的噴墨打印機核心部件——噴墨頭,主要由國外壟斷和生產(chǎn),國內(nèi)巨大的市場需求促使了大批學(xué)者對噴墨打印頭的研究。 基于噴墨打印機目前的這種發(fā)展情況,本文特別提出了一種新型的壓電驅(qū)動式噴墨打印頭結(jié)構(gòu)。在對新型結(jié)構(gòu)的實驗研究和優(yōu)化分析過程中,由于實驗制作研究存在成本高,時間長,受儀器設(shè)備局限性大等諸多缺點,為了節(jié)約成本、提高效率,本文利用數(shù)值模擬優(yōu)化方法,使用計算機軟件COMSOL設(shè)計優(yōu)化結(jié)構(gòu)尺寸參數(shù),根據(jù)模擬優(yōu)化結(jié)果指導(dǎo)實驗研究。 首先,本文通過分析壓電式噴墨打印機的工作原理,綜合考慮實驗室設(shè)備及能夠?qū)崿F(xiàn)的MEMS工藝,設(shè)計了一種新型的壓電式噴墨打印頭。相比目前市場上應(yīng)用的噴墨頭,該結(jié)構(gòu)具有簡單易制作,一體化程度高,成本低,易實現(xiàn)批量化生產(chǎn)等優(yōu)點。 其次,本文基于有限元方法,通過COMSOL模擬軟件分析了影響該結(jié)構(gòu)噴墨情況的主要因素,其中包括壓電陶瓷層參數(shù)、電壓、控制波形、腔室尺寸、噴孔尺寸、限流部等等。在分析了各個因素對于墨滴噴射情況的影響后,選取了最合適的結(jié)構(gòu)參數(shù),最終確定了該結(jié)構(gòu)實驗制作的參數(shù)。用模擬分析的方法為實驗制作提供參考,降低實驗成本,縮短研究時間。 最后,本文通過對實驗制作的新型壓電式噴墨頭進行了多普勒振動測試,驗證了模擬分析的正確性和該結(jié)構(gòu)設(shè)計的合理性。同時測試也使我們發(fā)現(xiàn)了結(jié)構(gòu)存在的問題,為后續(xù)的研究和設(shè)計提供了幫助。
[Abstract]:Piezoelectric driven inkjet printer is based on inverse piezoelectric effect. It has been widely used because of its high response speed, non-contact, high resolution and so on. At present, inkjet head, the core component of inkjet printer, is widely used in the market. Mainly monopolized and produced by foreign countries, huge domestic market demand has prompted a large number of scholars to study inkjet printing heads. Based on the current development of inkjet printer, a new type of piezoelectric driven inkjet head structure is proposed in this paper. In the process of experimental research and optimization analysis of the new structure, the cost of experimental manufacture research is high. In order to save cost and improve efficiency, in order to save cost and improve efficiency, in order to save cost and improve efficiency, this paper uses numerical simulation optimization method and computer software COMSOL to design and optimize structural dimension parameters. According to the results of simulation optimization, the experimental research is guided. Firstly, by analyzing the working principle of piezoelectric inkjet printer and considering the laboratory equipment and MEMS process, a new type of piezoelectric inkjet head is designed. The structure has the advantages of simple and easy to make, high degree of integration, low cost and easy to realize mass production. Secondly, based on the finite element method and COMSOL simulation software, the main factors that affect the ink jet are analyzed, including the parameters of piezoelectric ceramic layer, voltage, control waveform, chamber size, nozzle size, etc. After analyzing the influence of various factors on the droplet injection, the most appropriate structural parameters are selected, and the parameters of the structure experimental fabrication are finally determined. The method of simulation analysis is used to provide reference for the experimental fabrication. The experiment cost is reduced and the research time is shortened. Finally, the Doppler vibration test of a new type of piezoelectric inkjet head is carried out, which verifies the correctness of the simulation analysis and the rationality of the structure design. At the same time, the test also makes us discover the problems existing in the structure. It is helpful for further research and design.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP334.83

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