【作者】 司军锋；

【导师】 张海燕；

【作者基本信息】 西安理工大学 ， 制浆造纸工程， 2007， 硕士

【摘要】 收纸装置是印刷机的最后单元,其主要作用是把印品从压印滚筒上接过来,利用传送装置把印品送到收纸台上完成印刷。为了把已经印好的印张送到收纸台上,目前在高速印刷机上,普遍采用链条传送装置。在链条传送装置中,收纸链条架着收纸叼牙排在导轨中运行,导轨布局设计的优劣对印刷质量和印刷速度的提升影响很大,因此收纸链条导轨合理的布局对印刷机设计是非常重要的。本课题完成的主要内容如下:(1)印刷机收纸链传动运动学分析。(2)印刷机原链条导轨布局分析,应用MATLAB软件编程仿真出链条运动曲线,找出该印刷机收纸链条导轨布局存在的问题。(3)在链轮的啮出、啮入点进行改进型导轨设计,应用MATLAB软件仿真出收纸链条运动曲线图,与改进前链条运动曲线图进行对比分析,以论证改进型导轨的优越性。(4)在导轨“拐弯”处选用多种运动规律曲线进行曲线导轨设计,应用MATLAB软件进行编程仿真,找出最适合替代圆弧曲线导轨的运动规律曲线。(5)编写程序界面对导轨设计程序进行处理,并对改进型导轨进行参数化软件设计本课题通过对印刷机收纸链条导轨布局的分析与优化,消除了原收纸导轨布局存在的振动与冲击,对于提高国产印刷机的速度、精度和印刷质量,缩短国产机与国外先进印刷机的差距有重要意义。更多还原

【Abstract】 Delivery assembly is the final element of printing press. Its effect is hadding over the product from the impression cylinder,the printing procedure is finished when the delivery assembly taking the product to the delivery platen.now,It is commonly adopting the chain channel unit in the high speed printing press, the delivery chains with jaws operate in the chains orbit, the distribution of orbit will affect the improvement of printing quality and speed greatly,so the design of distribution of delivery chains orbit is very important.The main works are as following:(1) Kinematic analysis of delivery chains of printing press.(2) Analysis of distribution of original chains orbit of printing press.Getting the movement curve of chains through the emulation in Matlab.Finding the existing problems of the distribution of chains orbit of the printing press.(3) Designing the developed form orbit in the“joggling in”and“joggling out”point of chains wheel.Getting the movement curve through the emulation in Matlab and contrasting with the curve of the undeveloped form orbit, demonstrating the advantage of the developed form orbit.(4) Designing the“curve orbit”according to multiple movement curve in the“turning”point of the chains orbit.Emulating in Matlab and finding the most appropriate curve substituting for“arc curve orbit”.(5) Programming the interface of orbit designing,and configuring the improved orbit.From the analysis and majorization of the distribution of delivery chains orbit in the paper.we can see that the vibration and impact are eliminated.which is important both to enhance the internal printing press’s speed、precision and quality and to shorten the gap between the internal printing press and the foreign external top grade ones.更多还原