公开(公告)号：US10245773B2

公开(公告)日：2019-04-02

申请号：US14376597

申请日：2013-06-08

申请人： YAPP AUTOMOTIVE PARTS CO., LTD

发明人： Yan Sun ,  Lin Jiang ,  Songjun Xu ,  Liang Liu ,  Dejun Gao ,  Ye Wang ,  Lushun Wu ,  Jie Li ,  Weidong Su ,  Changru Wang ,  Xiaojun Li ,  Quanzhou Yang

IPC分类号： B29C49/00 ,  B29C49/18 ,  B29C49/20 ,  B29C49/42 ,  B29L31/00 ,  B29C49/04

摘要： A method for molding a two-piece blow molded hollow tank by using auxiliary male molds includes the following steps: 1) blanking two parisons; 2) closing mold halves of a mold and a pre-molding template; 3) pre-stretching the molten parisons by using auxiliary male molds in the pre-molding template; 4) performing internal high-pressure blow molding, and pre-molding two housing portions; 5) opening the mold, and withdrawing the pre-molding template; 6) moving in a component built-in mechanism to perform built-in component connection; 7) moving out the component built-in mechanism; 8) closing the mold for the second time and finally blow molding a hollow tank; and 9) opening the mold and taking out the product.