发明公开
- 专利标题： Desynchronized injection sandwich moulding
- 专利标题（中）： 异步Mehretagen-Spritzguss。
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申请号： EP83303844.1申请日： 1983-07-01
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公开(公告)号： EP0103363A1公开(公告)日： 1984-03-21
- 发明人: SORENSEN, Jens Ole
- 申请人： SORENSEN, Jens Ole
- 申请人地址： P.O. Box 2274 Rancho Santa Fe, CA 92067 US
- 专利权人： SORENSEN, Jens Ole
- 当前专利权人： SORENSEN, Jens Ole
- 当前专利权人地址： P.O. Box 2274 Rancho Santa Fe, CA 92067 US
- 代理机构： Wilson, Nicholas Martin
- 优先权： US398603 19820916; US398606 19820715; US436643 19821025
- 主分类号： B29C45/00
- IPC分类号： B29C45/00 ; B29C45/32
摘要：
A method and system of injection molding a thermoplastic material in a sandwich mold (17) which operates with desynchronized injection periods and usually with desynchronized opening and closing periods. The method includes a process of depressurizing the runner system (43, 44) and for preventing molding of layered products when using the desynchronized injection cycle. The method utilizes a bifurcated channel system encompassed by the injection unit (14) and two or more runner systems (43, 44) encompassed by the sandwich mold. Also disclosed is an improved method of transferring thermoplastic material from an injection unit (14) to a sandwich mold when a transfer of molding material along the central axis of the clamping platens is not suitable. The method utilizes one or more snorkels (30, 31) which have a central axis which is displaced from the central axis of the clamping platens (10, 11).
公开/授权文献
- EP0103363B1 Desynchronized injection sandwich moulding 公开/授权日：1986-11-26
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