纸巾包装机夹纸机构冲击强度计算

摘要

An impact/dynamic contact finite element model of a paper tissue packing machine clipped system is built. Impact force and impact time between four-bar linkage putter and moving clipped paper board are calculated. Meanwhile, the time-stress history of moving clipped paper board key point is obtained. Analysis results show that the maximum impact stress of clipped paper system is less than the allowable stress of material. Impact strength can meet the needs of working environment. This study verifies working conditions of the paper tissue packing machine clipped system is stable, it also plays a certain guiding role of the optimization of mechanism design.%建立某型纸巾包装机夹纸系统冲击/动态接触有限元模型，计算了四杆机构推杆对夹纸活动板的冲击力、冲击时间，活动板关键点时间-应力历程。分析结果表明，夹纸系统的最大冲击应力小于材料的许用应力，抗冲击强度满足工作需要。验证了纸巾包装机夹纸机构的稳定工作的条件，并对机构的后续结构优化有一定的指导作用。