发明名称 |
Needle blow nozzle, air cooling method, blow molding method and apparatus |
摘要 |
In a conventional needle blow nozzle and blow molding apparatus, because a needle portion is formed to have a linear tip, resistance against insertion of the nozzle into a parison is large and only a small-diameter needle blow nozzle can be inserted into the parison. For this reason, it has been difficult to increase an amount of air supplied to the interior of the parison and to shorten the molding cycle. With a needle blow nozzle, an air cooling method and apparatus, a blow molding method and apparatus, and a blow molded product according to the present invention, since a needle portion of the needle blow nozzle is formed into an umbrella-like shape, the tip of the needle portion provides a pointed needle center so that resistance against insertion of the nozzle into a parison is reduced and a large-diameter needle blow nozzle can be employed. |
申请公布号 |
GB2342066(B) |
申请公布日期 |
2001.01.10 |
申请号 |
GB19990022852 |
申请日期 |
1999.09.27 |
申请人 |
THE * JAPAN STEEL WORKS LIMITED;* YACHIYO KOGYO KABUSHIKI KAISHA |
发明人 |
YUZO * OMI;SYOUJI * SATOU;TAKATOSHI * WATANABE;RIKIISHI * AKIRA;HAJIME * KUDO;YOSHITAKA * OHNO;TOSHIO * KAGITANI;SOHEI * MASAKI;SHOJI * ABE |
分类号 |
B29C49/58;B29C49/04;B29C49/60;B29C49/66;B29L22/00;(IPC1-7):B29C49/60;B29C49/78 |
主分类号 |
B29C49/58 |
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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