本文選題：專用打印機(jī)　切入點(diǎn)：切刀壽命　出處：《哈爾濱工業(yè)大學(xué)》2012年碩士論文

【摘要】：目前，專用打印機(jī)行業(yè)在我國市場(chǎng)中已經(jīng)占有重要席位，廣泛應(yīng)用于交通運(yùn)輸、通信、餐飲等領(lǐng)域。隨著電子信息化和自動(dòng)化程度提高，人們對(duì)專用打印機(jī)的使用性能提出更高的要求。切刀模塊作為專用打印機(jī)的重要組成部分，主要實(shí)現(xiàn)自動(dòng)切紙的功能。它的壽命關(guān)系到打印機(jī)的可靠性，本文主要對(duì)切刀的壽命進(jìn)行研究。 首先，本文闡述了切刀的結(jié)構(gòu)及工作原理，并依據(jù)失效學(xué)原理和實(shí)驗(yàn)手段對(duì)切刀殘骸進(jìn)行失效分析，以便尋找切刀的失效原因及提出預(yù)防措施。運(yùn)用光學(xué)儀器分別從宏觀角度和微觀角度觀察失效切刀的表面形貌。下切刀中間部位為主要失效部位，且切刀表面存在許多深淺不一的溝槽。結(jié)合切刀的具體服役條件，判斷其失效形式為上、下切刀構(gòu)成二體磨粒磨損。依據(jù)摩擦學(xué)原理判斷切刀的失效機(jī)理為塑性變形機(jī)理，主要影響因素為切刀安裝位移。 然后，運(yùn)用有限元軟件ANSYS對(duì)切刀進(jìn)行非線性分析。運(yùn)用參數(shù)化編程的方法建立切刀有限元模型，并結(jié)合切刀的實(shí)際約束和加載情況對(duì)模型約束和加載。主要研究下切刀在工作時(shí)沿刀刃方向上的應(yīng)力分布以及當(dāng)切刀安裝位移改變時(shí)最大應(yīng)力的變化情況，進(jìn)一步判斷切刀位移對(duì)切刀壽命的影響程度。 最后，搭建了專用打印機(jī)切刀壽命檢測(cè)平臺(tái)，，并提出一種讓切刀加速失效的方案。專用打印機(jī)切刀壽命檢測(cè)平臺(tái)能準(zhǔn)確調(diào)整上、下切刀在水平和豎直方向上的位移；可以微量調(diào)整兩切刀刀面之間的角度；調(diào)整上切刀電機(jī)的切紙速度；通過控制送紙電機(jī)的頻率來調(diào)整切紙寬度；通過傳感器準(zhǔn)確檢測(cè)切紙效果；準(zhǔn)確記錄切紙次數(shù)。
[Abstract]:At present, the special printer industry has occupied an important position in the market of our country. It is widely used in transportation, communication, catering and other fields. With the development of electronic information and automation, As an important part of special printer, cutter cutting module mainly realizes the function of automatic paper cutting. Its life is related to the reliability of printer. In this paper, the life of cutter is studied. Firstly, the structure and working principle of the cutter are described, and the failure analysis of the cutter wreckage is carried out according to the failure theory and experimental means. In order to find out the failure reason of the cutter and put forward the preventive measures, the surface morphology of the cutter is observed from the macro and micro angles by using optical instruments. The middle part of the lower cutter is the main failure position. In addition, there are many grooves with different depth on the cutting surface. Combined with the specific service conditions of the cutter, the failure form of the cutter is judged as upper, and the lower cutter constitutes a two-body abrasive wear. According to the tribology principle, the failure mechanism of the cutter is determined to be the plastic deformation mechanism. The main influencing factor is cutter installation displacement. Then, the nonlinear analysis of the cutter is carried out by using the finite element software ANSYS, and the finite element model of the cutter is established by parameterized programming. Combined with the actual constraint and loading of the cutter, the stress distribution along the cutting edge direction and the maximum stress change when the cutter installation displacement is changed are mainly studied. The influence of cutter displacement on cutter life is further judged. Finally, a special printer tool life detection platform is set up, and a scheme to accelerate the cutting tool failure is put forward. The special printer cutter life detection platform can accurately adjust the displacement of the cutting tool in horizontal and vertical direction. It can adjust the angle between the two cutter surfaces; adjust the cutting speed of the upper cutter motor; adjust the cutting width by controlling the frequency of the paper feeding motor; detect the cutting effect accurately through the sensor; and accurately record the paper cutting times.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TP334.8

【參考文獻(xiàn)】

相關(guān)期刊論文 前5條

1 秦龍;董海;張弘_";李Z

本文編號(hào)：1666136