发明名称 |
METHOD AND APPARATUS FOR OVERMOLDING FRAGILE HOLLOW ARTICLE |
摘要 |
A method and apparatus for of overmolding a fragile hollow item with a plastic material. The process comprises providing the fragile hollow item collapsible under a pressure of about 25 MPa and greater and at least partially overmolding the fragile hollow item with the thermoplastic material while maintaining a substantially constant melt pressure of less than about 25 MPa. An apparatus for said process comprises at least two mold parts forming therebetween a mold cavity for receiving the fragile hollow item, an injection device for injecting the thermoplastic material into the mold cavity and over the hollow item, and a pressure-control mechanism for monitoring a melt pressure of the thermoplastic material and adjusting an injection pressure according to a pressure-dominated algorithm based on the melt pressure, wherein the pressure-control mechanism comprises at least one high-frequency pressure sensor located upstream of the mold cavity's front end. |
申请公布号 |
WO2016100314(A2) |
申请公布日期 |
2016.06.23 |
申请号 |
WO2015US65780 |
申请日期 |
2015.12.15 |
申请人 |
THE PROCTER & GAMBLE COMPANY |
发明人 |
NEWMAN, MATTHEW, LLOYD;LARSCHEID, ANDREAS;CARSON, JOHN |
分类号 |
B29C45/14;B29C45/77 |
主分类号 |
B29C45/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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