发明公开
EP3287257A1 INJECTION MOLD FOR INJECTION STRETCH BLOW MOLDING MACHINE, METHOD FOR MOLDING PREFORM, PREFORM, METHOD FOR MOLDING CONTAINER, AND CONTAINER
有权
基本信息:
- 专利标题： INJECTION MOLD FOR INJECTION STRETCH BLOW MOLDING MACHINE, METHOD FOR MOLDING PREFORM, PREFORM, METHOD FOR MOLDING CONTAINER, AND CONTAINER
- 专利标题（中）：注射拉伸吹瓶机的注射模，成型前的成型方法，预成型方法，成型容器的成型方法以及容器
- 申请号：EP16872575.2 申请日：2016-06-13
- 公开(公告)号：EP3287257A1 公开(公告)日：2018-02-28
- 发明人： AOKI, Shigeto
- 申请人： A.K. TECHNICAL LABORATORY, INC.,
- 申请人地址： 4963-3, Ohazaminamijo, Sakakimachi Hanishina-gun, Nagano-ken 389-0603 JP
- 专利权人： A.K. TECHNICAL LABORATORY, INC.,
- 当前专利权人： A.K. TECHNICAL LABORATORY, INC.,
- 当前专利权人地址： 4963-3, Ohazaminamijo, Sakakimachi Hanishina-gun, Nagano-ken 389-0603 JP
- 代理机构： Leitner, Waldemar
- 优先权： JP2015242217 20151211; JP2016105539 20160526
- 国际公布： WO2017098673 20170615
- 主分类号： B29C49/48
- IPC分类号： B29C49/48 ; B29C45/78 ; B29C49/06 ; B29C49/12
摘要：
According to the present invention, in order to improve the productivity of an injection stretch blow molding machine, when a core mold is lifted during mold opening at an injection molding part of the injection stretch blow molding machine, stress is dispersed so as not to concentrate at an area where the thickness changes between a preform opening and a preform body so that the preform body is inhibited from being lifted at a skin layer in the area where the thickness changes between the preform opening and the preform body. In a preform (30) where a skin layer (34) at the surface has a lower temperature than a middle layer (35) so as to allow a preform body (32) and a preform bottom (33) to expand and deform from the inside of the preform toward the outside of the preform, the skin layer (34) bridging between the inner surf ace of the preform body (32) and the inner surface of the preform opening (31) is formed in a tapered shape that opens upward at an outward slant with respect to an extension line (38) of the inner surface of the preform body (32) extending above the skin layer (34) so that, during the lifting of the core mold, the stress exerted from the preform body (32) is dispersed at a stress dispersing plane section (39) with the skin layer (34).
摘要（中）：
根据本发明，为了提高注坯拉伸吹塑机的生产率，当在注射拉伸吹塑机的注射成型部件的模具打开过程中提升型芯模具时，应力被分散以不集中 在预成型体开口和预成型体之间的厚度变化的区域，以便在预成型体开口和预成型体之间的厚度变化的区域中，预成型体不会在表层处被抬起。 在其中表面处的表层（34）具有比中间层（35）更低的温度的预成型件（30）中，以允许预成型件本体（32）和预成型件底部（33）膨胀并从 在预成型件的内侧朝向预成型件的外侧，桥接在预成型件本体（32）的内表面和预成型件开口（31）的内表面之间的表层（34）形成为向上开口的锥形 相对于在表层（34）上方延伸的预成型体（32）的内表面的延长线（38）向外倾斜，使得在提升型芯时，预成型体 （32）与皮层（34）一起分散在应力分散平面部分（39）处。
公开/授权文献:
IPC结构图谱:
| B | 作业；运输 |
| --B29 | 塑料的加工；一般处于塑性状态物质的加工 |
| ----B29C | 塑料的成型或连接；塑性状态物质的一般成型；已成型产品的后处理，如修整 |
| ------B29C49/00 | 吹塑法，即在模型内将预型件或型坯吹成要求的形状；所用的设备 |
| --------B29C49/24 | .加衬里或加标记 |
| ----------B29C49/48 | ..模型 |