纺织学报 ›› 2020, Vol. 41 ›› Issue (09): 143-148.doi: 10.13475/j.fzxb.20191205906
DING Caihong(), LI Shucheng, WU Xiru
摘要:
为实现自动化铲板过程中铲刀快速接近并压紧在喷丝板面而不损伤铲刀或者喷丝板面,需对对刀运动进行运动参数规划。通过分析自动化铲板运动过程,描述对刀运动的4个阶段连续运动,提出对刀运动的梯形速度控制曲线设计方案;应用Hertz接触理论建立铲刀和喷丝板面的接触力学模型,对铲刀和喷丝板面的受损难易程度进行定性分析,确定以不损伤铲刀刀刃为对刀运动参数设计的依据;通过接触碰撞分析建立铲刀与喷丝板面之间的碰撞力、碰撞变形、碰撞时间与碰撞速度之间的数学关系式。最后以曲率半径为0.2 mm的铲刀刀刃(最大损伤变形0.1 mm)为例,应用MatLab计算得到对刀运动的最大允许碰撞速度和碰撞力,完成对刀运动的参数设计,为铲板组件缓冲结构的详细设计提供参考。
中图分类号:
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