【摘要】 陕西北人FR400高速凹版印刷机在实际印刷中，印刷辊筒在液压缸压力作用下存在中心挠曲变形量过大，出现周期性的印刷墨杠等印刷缺陷，严重影响印品质量。文中针对其原有锥顶空心版辊结构进行优化设计，提出一种穿心轴印刷版辊结构。利用SolidWorks软件对印刷单元版辊结构进行建模，采用ANSYS有限元分析软件对锥顶结构和穿心轴结构进行对比分析。结果显示：印刷单元采用改进的穿心轴版辊结构，在不同液压缸压力作用下，能有效减小印刷辊筒挠曲变形量，达到消除印刷墨杠，提高印刷精度的目的。该优化创新设计目前已在高速凹版印刷机上应用，效果良好。更多还原

【Abstract】 When the Shaanxi-Beiren FR400 high-speed gravure printing press is operating, its printing roller suffers from too much central flexural deformation under hydraulic cylinder pressure, as well as periodic printing ink bar and other defects, which seriously affect quality of printing products. In this article, the original plate roller characterized by cone top hollow is optimized, and a through-spindle plate roller is proposed. The SolidWorks software is used to model the printing unit’s plate roller, and the ANSYS finite-element analytical software is adopted to compare and analyze the cone top and through-spindle structures. The results show that under different hydraulic cylinder pressure, this improved through-spindle printing roller is desirable to reduce flexural deformation of the cylinder and eliminate the ink bar, thus ensuring higher printing accuracy. The optimized and innovative design is applied in the high-speed gravure printing press, with superior effect.更多还原