【作者】 贾春江；

【导师】 黄颖为；

【作者基本信息】 西安理工大学 ， 制浆造纸， 2006， 硕士

【摘要】 本文从合理印刷压力的确定开始,通过对印刷压力的计算分析,得出了印刷压力的分布情况,在印刷压力计算分析的基础上,对滚筒刚度,压印辊橡胶老化及印版滚筒的驱动功率进行分析计算,主要对以下几个问题进行分析讨论:(1)通过实验分析,确定承印材料BOPP的合理印刷压力范围,在这个压力范围内印刷品密度较为稳定,没有拉毛及印迹不清等现象,这个范围是正常印刷的压力范围。(2)采用赫兹弹性接触理论,对印刷压力进行分析计算,从而确定滚压过程中压印滚筒胶皮内部的应力大小,确定压印辊的老化层,在120m/min的转速下,通过计算分析,得出老化层在表面以下0.8a(其中a为接触宽度的1/2),用于指导压印滚筒胶皮的生产加工。(3)加筋板滚筒和无筋板滚筒刚度的比较,通过计算得出:在相同挠度、相同外径的前提下,无筋板滚筒的壁厚为加筋板滚筒的壁厚的1.5倍。因此,在加工条件允许的前提下,应采用有筋板结构的滚筒。(4)滚筒滚压过程中能量消耗的计算,以此为依据对弹性变形所造成的功率损耗进行准确计算,为滚筒驱动功率的计算打下基础。更多还原

【Abstract】 The subject begins from the sureness of printing pressure, through calculation and analysis of the printing pressure, we get the distribution situation of the printing pressure. On the basis of calculation and analysis of printing pressure, we calculate and analyzing the cylinder rigidity, press roller wear out and driving power .the main contents and the innovative views are as follows:( 1) The ascertain of the rational printing pressure of BOPP material by experimentation, the density of print product is comparatively steady within this range of this pressure, and there is no unclear printing trace etc, and also the range in which is to keep printing work. smoothly。( 2) Through the analysis of printing pressure by the hertz-theoretics, confirming the stress within the rubber in the work, and also the impression cylinder wore out on which layer. Draw through calculation and analysis, under the speed of printing of 120m/min, wear out in one layer of 0.8 a places under top layer (‘a’is half of the tangency width),it can be the direction of the mackintosh’s production and processing technique.( 3) Through the comparison of the stiffened panels and no panel cylinder, we got that: On the premise of the same value , the same external diameter , the wall thickness of the stiffened panel is 1.5 times than the no panel cylinder. So, if the condition of the process is allowed, we should adopt the cylinder with stiffened panel.( 4) The calculation of the energy consumption in the printing works, and based on which, we give out the accurate calculation of energy consumption caused by the elasticity deformation. And from this we get the groundwork of the calculation of the cylinder driving power.更多还原