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    • 7. 发明授权
    • Method and apparatus for changing a printing sleeve
    • 改变印刷套筒的方法和装置
    • US5289769A
    • 1994-03-01
    • US930774
    • 1992-08-17
    • Robert J. Lewis
    • Robert J. Lewis
    • B41F27/12B41F27/00
    • B41F27/12B41P2227/21
    • A system for changing a removable sleeve on a printing roller in a flexographic printing press is disclosed. Axially fixed bearing assemblies are installed on the mandrel of the printing roll, and positioned in a split bearing block. In changing the printing sleeve, at least one bearing block is opened to release the bearing assemblies as the mandrel is raised and fitted with a removable axial extension. The axial extension is then braced to support the roll in a raised position. The printing sleeve can then be axially extracted onto the extension, clearing the printing roller and the frame of the printing press. A second brace is then applied intermediate the printing roller and the extracted printing sleeve. Withdrawal of the first brace allows the printing sleeve to be entirely removed while the partially dismounted printing roller is stabilized by the second brace. A replacement printing sleeve is then placed over the axial extension, and the process reversed.
    • 公开了一种用于在柔版印刷机中改变印刷辊上的可移除套筒的系统。 轴向固定的轴承组件安装在印刷辊的心轴上,并定位在分离轴承座中。 在更换印刷套筒时,打开至少一个轴承座以释放轴承组件,因为心轴被提升并装配有可拆卸的轴向延伸部分。 然后支撑轴向延伸部以将卷支撑在升高位置。 然后可以将印刷套筒轴向地抽出到延伸部上,清除印刷辊和印刷机的框架。 然后在印刷辊和提取的印刷套筒之间施加第二支架。 退出第一支架允许打印套筒被完全移除,而部分拆卸的印刷辊被第二支架稳定。 然后将替换的印刷套管放置在轴向延伸部上,并且该过程相反。