公开(公告)号：US20100225025A1

公开(公告)日：2010-09-09

申请号：US12694870

申请日：2010-01-27

申请人： Christian Striegel

发明人： Christian Striegel

IPC分类号： B29C45/13

CPC分类号： B29C45/281 ,  B29C45/0025 ,  B29C2045/0032 ,  B29C2045/0089

摘要： A cascade injection molding system includes a plurality of nozzles each having a valve rod driven by a piston cylinder drive, for injecting melt into the mold cavity. A throttle check valve is located within a pressurizing medium line to regulate nozzle operation. The method includes injecting the melt at feed orifice using a needle valve-controlled needle valve nozzle associated with each feed orifice into the cavity of the molding tool. The needle valve nozzles is opened at different times by controlling the opening speed and the injection pressure at the feed orifices, via the corresponding piston-cylinder drives for the needle valve nozzles. The pressurizing medium discharge from the piston cylinder is throttled for at least one of the piston-cylinder drives when the nozzle is opened.

摘要翻译： 级联注塑系统包括多个喷嘴，每个喷嘴具有由柱塞缸驱动器驱动的阀杆，用于将熔体注入模腔中。 节气门止回阀位于加压介质管线内，以调节喷嘴操作。 该方法包括使用与每个进料孔相关联的针阀控制的针阀喷嘴将进料口处的熔体注入到模具的腔中。 通过针对针阀喷嘴的相应的活塞 - 气缸驱动器控制打开速度和进料孔处的喷射压力，在不同的时间打开针阀喷嘴。 当喷嘴打开时，来自活塞气缸的加压介质排出用于至少一个活塞 - 气缸驱动器。