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  本文關(guān)鍵詞：基于高速旋轉(zhuǎn)式吹瓶機凸輪系統(tǒng)的優(yōu)化研究　出處：《華南理工大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 高速凸輪 開合模凸輪 凸輪盤 貝齊爾曲線 運動學(xué)仿真

【摘要】：PET塑料瓶價格便宜，透明性、氣密性、耐壓強度好而且易塑造型，在包裝行業(yè)越來越被廣泛使用，而PET旋轉(zhuǎn)式吹瓶機具有速度高、效率高、成品率高等優(yōu)點，而成了吹瓶機的主要發(fā)展方向。目前國內(nèi)已經(jīng)有多家公司開始從事旋轉(zhuǎn)式吹瓶機的研發(fā)生產(chǎn)，其中包括東莞佳鴻機械有限公司、廣州達意隆包裝機械股份有限公司等都已經(jīng)開發(fā)出熱灌和水瓶的不同工位的旋轉(zhuǎn)式吹瓶機。但由于相關(guān)技術(shù)及研發(fā)水平的差別，國內(nèi)旋轉(zhuǎn)式吹瓶機在穩(wěn)定性和單模產(chǎn)量上都不高，而旋轉(zhuǎn)式吹瓶機中的開合模凸輪系統(tǒng)和兩個手指盤凸輪系統(tǒng)對機器穩(wěn)定性和單模產(chǎn)量起到直接作用，本文就對這幾個凸輪系統(tǒng)整體優(yōu)化展開研究。 本論文首先就高速場合下凸輪系統(tǒng)運動規(guī)律及高速凸輪優(yōu)化方法進行研究，分析對比用于高速場合下的凸輪機構(gòu)從動件運動規(guī)律，并將最優(yōu)化設(shè)計理論引用到高速凸輪系統(tǒng)的研究。其次，本文對旋轉(zhuǎn)式吹瓶機中開合模凸輪系統(tǒng)進行機構(gòu)原理分析，然后利用矢量分析法研究了開合模凸輪系統(tǒng)的解析方法，推導(dǎo)出開合模凸輪與模具開合角度數(shù)學(xué)關(guān)系，并分別通過Auto-CAD和Pro/Engineer實現(xiàn)了解析法的凸輪輪廓曲線的生成；論文還對兩個手指盤凸輪輪廓曲線進行研究，詳細(xì)討論研究了輪廓曲線不同段的設(shè)計要求，并利用樣條插值法對手指盤凸輪輪廓曲線過渡部分的構(gòu)造，然后參照曲率使用貝齊爾曲線法對構(gòu)造的曲線進行優(yōu)化調(diào)整。最后，論文就開合模凸輪與手指盤凸輪關(guān)系進行研究，并通過Pro/Engineer的運動學(xué)仿真模塊來構(gòu)造凸輪盤機構(gòu)的仿真模型，并進行運動學(xué)仿真，對比速度加速度，選擇最適合的開合模凸輪參數(shù)。旨在通過本文的研究，從旋轉(zhuǎn)式吹瓶機各個凸輪系統(tǒng)整體及其之間的關(guān)系出發(fā)進行優(yōu)化設(shè)計各凸輪輪廓曲線，從而提高旋轉(zhuǎn)式吹瓶機的平穩(wěn)性和單模產(chǎn)量。 本論文最終通過上述研究優(yōu)化得出三個凸輪系統(tǒng)的凸輪輪廓曲線，并應(yīng)用于高速旋轉(zhuǎn)式吹瓶機上，在保持機器平穩(wěn)運轉(zhuǎn)的基礎(chǔ)上，，單模產(chǎn)量由原來的1500BPH提高到1800BPH，對高速旋轉(zhuǎn)式吹瓶機凸輪系統(tǒng)的設(shè)計有一定的實際意義。
[Abstract]:PET plastic bottle price is cheap, transparent, airtight, good pressure strength and easy to shape, more and more widely used in the packaging industry, and PET rotary bottle blowing machine with high speed, high efficiency. The high product rate has become the main development direction of the bottle blowing machine. At present, many domestic companies have begun to engage in the research and production of rotary bottle blowing machine, including Dongguan Jiahong Machinery Co., Ltd. Guangzhou Dayilong Packaging Machinery Co., Ltd. has developed the hot irrigation and water bottle of different work station rotary blowing machine. But due to the related technology and R & D level differences. Domestic rotary bottle blowing machine is not high in stability and single mode production, but the open and close cam system and two finger disc cam system in rotary bottle blowing machine play a direct role in machine stability and single mode output. In this paper, the overall optimization of these cam systems is studied. In this paper, the motion law of cam system and the optimization method of high-speed cam are studied firstly, and the motion law of follower of cam mechanism used in high-speed situation is analyzed and compared. And the optimization design theory is applied to the research of high-speed cam system. Secondly, the mechanism principle of open and close cam system in rotary bottle blowing machine is analyzed in this paper. Then, the analytical method of open and close cam system is studied by vector analysis method, and the mathematical relationship between open and close cam and opening and closing angle of die is deduced. The cam contour curve is generated by Auto-CAD and Pro/Engineer, respectively. The paper also studies the contour curve of two finger disc cam, discusses the design requirements of different segments of the profile curve in detail, and constructs the transition part of the cam contour curve using spline interpolation method. Then the curve is optimized and adjusted by the method of Bezier curve according to the curvature. Finally, the relationship between the open and close cam and the finger cam is studied in this paper. The simulation model of cam disk mechanism is constructed by the kinematics simulation module of Pro/Engineer, and the kinematics simulation is carried out, and the velocity acceleration is compared. The purpose of this paper is to optimize the design of cam contour curves from the angle of the whole cam system of rotary bottle blowing machine and the relationship between the cam system and the cam system. In order to improve the stability of rotary bottle blowing machine and single mode output. Finally, the cam contour curves of three cam systems are obtained through the above research, and applied to the high-speed rotary bottle blowing machine, on the basis of maintaining the smooth operation of the machine. The output of single mold is increased from 1500 BPH to 1800 BPH, which is of practical significance to the design of cam system of high speed rotary bottle blowing machine.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH112.2

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