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1. 发明公开

EP2774741A4 PREFORM INJECTION MOLDING DEVICE 有权
标题翻译：瓶坯注射装置
公开(公告)号：EP2774741A4
公开(公告)日：2015-07-15
申请号：EP12845397
申请日：2012-10-19
申请人： YOSHINO KOGYOSHO CO LTD
发明人： ISHIZAWA YASUHIRO , HOSOKOSHIYAMA HIROSHI , SATO MAMORU
IPC分类号： B29C45/16 , B29B11/08 , B29C45/20 , B29C49/06 , B29C49/22 , B29K77/00
CPC分类号： B29C49/221 , B29B11/08 , B29B11/10 , B29B11/14 , B29B2911/00 , B29B2911/1404 , B29B2911/14046 , B29B2911/14073 , B29B2911/14086 , B29B2911/14093 , B29B2911/141 , B29B2911/14133 , B29C45/0046 , B29C45/1603 , B29C45/1646 , B29C49/0078 , B29C49/0084 , B29C49/06 , B29C49/22 , B29C2045/1648 , B29C2049/0089 , B29K2067/003 , B29K2077/00 , B29K2105/258 , B29K2995/0067 , B29L2009/00 , B29L2023/00 , B29L2031/7158
摘要： A technical problem of this invention is to minimize fluctuations in the height position of a leading edge of an intermediate layer of a preform in a circumferential direction when an injection molding device is used to mold the preform in a test tube by laminating substrate layers of a main resin with an intermediate layer, while segmenting the intermediate-layer resin in the circumferential direction into small streams A principal means of solving the above-described technical problem is a preform-molding device having a nozzle section comprising three cylindrical layer-forming flow channels, which include an inner flow channel and an outer flow channel for forming the substrate layers of the main resin, and a middle flow channel for forming the intermediate layer, and also comprising a predetermined number of vertical blocking rib pieces disposed at a downstream end of the middle flow channel, in parallel in the circumferential direction, so that the intermediate layer would be segmented in the circumferential direction into a predetermined number of vertically running streams, wherein flow behavior of the intermediate-layer resin flowing through the middle flow channel is adjusted by positioning the vertical blocking rib pieces in the circumferential direction so as to minimize a difference in height between a maximum height point and a minimum height point that appear in a leading edge of the intermediate layer of the preform.

2. 发明公开

EP2774741A1 PREFORM INJECTION MOLDING DEVICE 有权
标题翻译： VORFORM-SPRITZGUSSVORRICHTUNG
公开(公告)号：EP2774741A1
公开(公告)日：2014-09-10
申请号：EP12845397.4
申请日：2012-10-19
申请人： Yoshino Kogyosho Co., Ltd.
发明人： ISHIZAWA Yasuhiro , HOSOKOSHIYAMA Hiroshi , SATO Mamoru
IPC分类号： B29C45/16 , B29C45/20 , B29C49/06 , B29C49/22
CPC分类号： B29C49/221 , B29B11/08 , B29B11/10 , B29B11/14 , B29B2911/00 , B29B2911/1404 , B29B2911/14046 , B29B2911/14073 , B29B2911/14086 , B29B2911/14093 , B29B2911/141 , B29B2911/14133 , B29C45/0046 , B29C45/1603 , B29C45/1646 , B29C49/0078 , B29C49/0084 , B29C49/06 , B29C49/22 , B29C2045/1648 , B29C2049/0089 , B29K2067/003 , B29K2077/00 , B29K2105/258 , B29K2995/0067 , B29L2009/00 , B29L2023/00 , B29L2031/7158
摘要： A technical problem of this invention is to minimize fluctuations in the height position of a leading edge of an intermediate layer of a preform in a circumferential direction when an injection molding device is used to mold the preform in a test tube by laminating substrate layers of a main resin with an intermediate layer, while segmenting the intermediate-layer resin in the circumferential direction into small streams A principal means of solving the above-described technical problem is a preform-molding device having a nozzle section comprising three cylindrical layer-forming flow channels, which include an inner flow channel and an outer flow channel for forming the substrate layers of the main resin, and a middle flow channel for forming the intermediate layer, and also comprising a predetermined number of vertical blocking rib pieces disposed at a downstream end of the middle flow channel, in parallel in the circumferential direction, so that the intermediate layer would be segmented in the circumferential direction into a predetermined number of vertically running streams, wherein flow behavior of the intermediate-layer resin flowing through the middle flow channel is adjusted by positioning the vertical blocking rib pieces in the circumferential direction so as to minimize a difference in height between a maximum height point and a minimum height point that appear in a leading edge of the intermediate layer of the preform.
摘要翻译：本发明的一个技术问题是使注射成型装置在试管中将预成型件模制成一个预制件的圆周方向的中间层的前缘的高度位置的波动，具有中间层的主树脂，同时将中间层树脂沿圆周方向分割成小流体解决上述技术问题的主要方法是具有喷嘴部分的预成型件成型装置，该喷嘴部分包括三个圆柱形层形成流动通道，其包括用于形成主树脂的基底层的内部流道和外部流动通道，以及用于形成中间层的中间流动通道，并且还包括设置在下游端的预定数量的垂直阻挡肋片中间流动通道在圆周方向上平行，使得中间层将是间隔的在圆周方向上引入预定数量的垂直流动流，其中流过中流道的中间层树脂的流动行为通过在垂直方向上定位垂直阻挡肋片来调节，以便最小化高度差在出现在预成型件的中间层的前缘中的最大高度点和最小高度点之间。

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