In the paper, study on displacement law of blank hole for forming cylindraceous with bottom border by numerical simulation technology.

通过数值仿真研究了带底孔件后底孔变规律,在基础上建立了带底孔件后毛料中心孔变规律经验公式。

Y series wrapping machine is suitable for the packaging of cylindraceous goods.This method of packing prevent the goods from dust , water etc .

Y系列式缠绕包装机对状物体进行轴向包装，实现物体整体裹包。