发明名称 |
METHOD FOR MANUFACTURING A HOLLOW PLASTIC PRODUCT |
摘要 |
A method and apparatus for manufacturing a hollow plastic product is provided. In accordance with one aspect, into a mold half having a tubular groove portion and a projecting groove portion which projects outwardly from the tubular groove section is supplied a parison into the tubular groove portion and a clump of molding material into the projecting groove portion, and when blow molding is carried out by introducing a pressurized gas into the parison, the clump becomes integrated with the parison thereby providing a plastic product of unitary structure. In accordance with another aspect of the present invention, a parison extrusion nozzle is provided with at least two passages each of which is connected, preferably through a valve, to a corresponding dispensing unit for dispensing a desired molding material. A control unit is provided as connected to each of the dispensing units to control the supply of molding material so that there is obtained a parison having regions of different molding materials.
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申请公布号 |
US2001042947(A1) |
申请公布日期 |
2001.11.22 |
申请号 |
US19960703249D |
申请日期 |
1996.08.26 |
申请人 |
NAKAGAWA TATSUYA;EZAKI YASUO |
发明人 |
NAKAGAWA TATSUYA;EZAKI YASUO |
分类号 |
B29B11/10;B29B11/14;B29C47/04;B29C47/06;B29C47/20;B29C47/28;B29C47/58;B29C47/92;B29C49/00;B29C49/02;B29C49/04;B29C49/20;B29C49/22;B29C49/42;B29C49/78;B29L22/00;B29L23/18;F16D1/06;F16L11/11;(IPC1-7):B29C49/04 |
主分类号 |
B29B11/10 |
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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