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1. 发明授权

EP3059064B1 PLASTIC MOLDING METHOD 有权
公开(公告)号：EP3059064B1
公开(公告)日：2019-02-06
申请号：EP14872011.3
申请日：2014-11-28
申请人： Toyo Seikan Group Holdings, Ltd. , Toyo Seikan Co., Ltd.
发明人： KOISO, Nobuhisa , ICHIKAWA, Kentarou , NAKATANI, Toyohiko , KOTANI, Hisashi , TAJIMA, Tomonari
IPC分类号： B29C33/72 , B29C45/17 , B29C45/34 , B29C33/10

2. 发明公开

EP3059064A1 PLASTIC MOLDING METHOD 有权
标题翻译：塑料成型方法
公开(公告)号：EP3059064A1
公开(公告)日：2016-08-24
申请号：EP14872011.3
申请日：2014-11-28
申请人： Toyo Seikan Group Holdings, Ltd. , Toyo Seikan Co., Ltd.
发明人： KOISO, Nobuhisa , ICHIKAWA, Kentarou , NAKATANI, Toyohiko , KOTANI, Hisashi , TAJIMA, Tomonari
IPC分类号： B29C33/72 , B29C33/10
CPC分类号： B29D22/00 , B29C33/10 , B29C33/72 , B29C45/03 , B29C45/1703 , B29C45/1753 , B29C45/34 , B29C2033/727
摘要： A method of forming a plastic material by using a mold 30 that has a split-mold structure forming air vent 39 in the split surfaces which are the butt surfaces of split molds, the air vent 39 being communicated with gas passages 37, wherein a resin is fed into the mold 30 so as to be formed, and after the formed article is taken out from the mold but before the rein is fed into the mold 30 so as to be formed in the next cycle, a cleaning gas G is fed through the gas passages 37 into the air vent 39 in a state where there is formed at least part of the mold 30 inclusive of the air vent 39, the cleaning gas G being discharged through passages separate from the gas passages 37. The method is capable of effectively preventing the oligomers from building up in the vent groove and, therefore, automatically executing the cleaning without the need of halting the forming cycle.
摘要翻译：使用在作为分割模具的对接面的分割面上形成有通气孔39的分割模制结构的模具30与气体通路37连通的方式形成塑料材料的方法，被供给到模具30中以形成，并且在将成形物品从模具中取出之后但在将缰绳供给到模具30中以在下一循环中形成之前，将清洁气体G通过气体通道37在形成包括通气口39的模具30的至少一部分的状态下进入通气口39，清洁气体G通过与气体通道37分离的通道排出。该方法能够有效地防止低聚物在通气槽中积聚，并因此自动执行清洁而不需要停止成型周期。

4. 发明公开

EP2962829A1 METHOD FOR MANUFACTURING FOAMABLE INJECTION MOLDING AND INJECTION DEVICE THEREFOR 有权转让
标题翻译：制造可发泡注射成型和注射装置的方法
公开(公告)号：EP2962829A1
公开(公告)日：2016-01-06
申请号：EP14756937.0
申请日：2014-02-20
申请人： Toyo Seikan Group Holdings, Ltd. , Toshiba Machine Engineering Co. Ltd.
发明人： NAKATANI, Toyohiko , ICHIKAWA, Kentarou , TANAKA, Hideo , SATO, Kazuhito , LEVI, Kishbaugh
IPC分类号： B29C45/00 , B29C45/54 , B29K105/04
摘要： A plasticizing process in which a molten resin that has been plasticized and dissolved in a foaming gas is sent to the front end side of a heating cylinder 20 by means of a screw 21 that rotates in a heating cylinder 20, and the screw 21 retreats according as the molten resin accumulates in the front end side of the heating cylinder 20; a transfer process in which the screw 21 is advanced with rotating and transfers the molten resin accumulated in the front end side of the heating cylinder 20 from a plasticizing unit 2 to an injection unit 3, and an injection process in which the molten resin is injected from the injection unit 3 are conducted and repeated to produce a foamable injection molded product. By this method, in injection molding of a foamable injection molded product dissolved in a foaming gas such as an inert gas, plasticization of a raw material resin and impregnation of a plasticized molten resin with a foaming gas in a molding cycle can be improved, whereby productivity can be improved.
摘要翻译：通过在加热缸20内旋转的螺杆21将在发泡气体中塑化溶解的熔融树脂送入加热缸20的前端侧的塑化工序，螺杆21按照当熔融树脂积聚在加热缸20的前端侧时，转动过程，其中螺杆21随着旋转而前进，并且将积聚在加热缸20的前端侧的熔融树脂从塑化单元2转移到注入单元3;以及注入过程，其中注入熔融树脂从注射单元3引导并重复以生产可发泡注射成型产品。通过该方法，在注射成型溶解在惰性气体等发泡气体中的发泡性注塑成型品的情况下，能够提高原料树脂的塑化和成型周期中发泡气体对增塑熔融树脂的含浸，生产力可以得到提高。

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