发明名称 |
Molding apparatus and molding method for light-permeable articles |
摘要 |
A molding apparatus for light-permeable articles which includes a nozzle that is movable up and down. A suction path and a suction device connected to the suction path are provided so as to suck a gas at a contact face of a sprue bush and its vicinity during the up/down movement of the nozzle. Accordingly, foreign substances, invading the mold can be sucked up before the apparatus performs a molding operation. Therefore, foreign substances are prevented from being mixed into the molded product. The molded product is accordingly improved in quality and yield.
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申请公布号 |
US5961898(A) |
申请公布日期 |
1999.10.05 |
申请号 |
US19970942902 |
申请日期 |
1997.10.02 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
HIGASHIDA, TAKAAKI;KADORIKU, SHINJI;NAKAGAWA, TOKIHARU;KATAYAMA, AKINOBU;YUTANI, HIROSHI;MARUYAMA, YOSHIO |
分类号 |
B29C45/20;B29C45/17;B29C45/27;G11B7/26;(IPC1-7):B29C45/24 |
主分类号 |
B29C45/20 |
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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