发明授权
US06939500B2 Method and apparatus for eliminating a parting line witness mark from a molded part
失效
用于从模制部件消除分型线见证标记的方法和装置
- 专利标题: Method and apparatus for eliminating a parting line witness mark from a molded part
- 专利标题(中): 用于从模制部件消除分型线见证标记的方法和装置
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申请号: US10226892申请日: 2002-08-22
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公开(公告)号: US06939500B2公开(公告)日: 2005-09-06
- 发明人: Edward Helmut Bernard
- 申请人: Edward Helmut Bernard
- 申请人地址: CA Oldcastle
- 专利权人: Bernard Mould
- 当前专利权人: Bernard Mould
- 当前专利权人地址: CA Oldcastle
- 代理机构: Reising, Ethington, Barnes, Kisselle, P.C.
- 代理商 William J. Waugaman
- 主分类号: B29C45/00
- IPC分类号: B29C45/00 ; B29C45/56 ; B29C45/38
摘要:
Method and apparatus for molding a sealing surface of revolution on a molded part in first and second partable mold halves that mate at a major parting line plane. First and second mold inserts each have a sub-insert trim wheel component shaped to mold form the sealing surface of revolution when closed at a minor parting line plane. The sub-inserts are rotatable between a position flush with the major parting line plane and a starting position angularly offset therefrom. The mold cavity is filled with liquid molding material that is allowed to harden to at least a self-sustaining solidification strength. The sub-inserts are then rotated to thereby move any minor parting line flash toward a position angularly offset from their starting position. This rotation causes any parting line flash that might otherwise remain on the sealing surface to be removed from attachment to, and/or smeared smooth along, such surface.