发明名称 |
MATERIAL BEAD CHARGING METHOD, SYNTHETIC RESIN MOLD FOAM FORMING METHOD USING THIS METHOD, AND MOLD FOAM FORMED PRODUCT OBTAINED BY THIS METHOD |
摘要 |
A material bead charging method using a novel foam forming device comprising forming chambers (13, 14) formed independently of a cavity (4) on the rear sides of a set of forming molds (2, 3) for forming a foam formed product, respectively, so that a service fluid such as air and steam can be fed into the cavity (4) through a first opening part (30) independently of the chambers (13, 14), the method comprising feeding material beads into the cavity (4) while a pressure inside the cavity (4) is maintained, by using the first opening part (30), at a specified negative pressure relative to a pressure inside a material tank, whereby a variation in charging density due to the omission of vent holes can be prevented while various kinds of problems caused by the forming of vent holes are basically solved.
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申请公布号 |
WO9951415(A1) |
申请公布日期 |
1999.10.14 |
申请号 |
WO1999JP01710 |
申请日期 |
1999.03.31 |
申请人 |
DAISEN INDUSTRY CO., LTD.;NOHARA, IWAO;NAKASHIMA, TOMIO;IDA, KIYOTAKA;SAMESHIMA, MASAHIKO;KOBAYASHI, YOSHIYUKI;YAMAGUCHI, KENJI |
发明人 |
NOHARA, IWAO;NAKASHIMA, TOMIO;IDA, KIYOTAKA;SAMESHIMA, MASAHIKO;KOBAYASHI, YOSHIYUKI;YAMAGUCHI, KENJI |
分类号 |
B29C44/44;(IPC1-7):B29C44/00 |
主分类号 |
B29C44/44 |
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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