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    Techniques to mold parts with injection-formed aperture in gate area
    1.
    发明授权
    Techniques to mold parts with injection-formed aperture in gate area 有权

    公开(公告)号：US09050747B2

    公开(公告)日：2015-06-09

    申请号：US13827293

    申请日：2013-03-14

    申请人： Kortec, Inc.

    发明人： Paul M. Swenson

    IPC分类号： B29C45/28 ,  B29C45/23 ,  B29C45/16 ,  B29C45/76 ,  B32B3/02

    摘要： Methods and systems for co-extruding multiple polymeric material flow streams into a mold cavity to produce a molded plastic article having an injection-formed aperture in gate region of the article are disclosed herein. A method includes providing a valve pin having a distal portion with a first diameter and a mid-portion with a second diameter smaller than the first diameter and providing a mold defining a cavity corresponding to a shape of a resulting molded plastic article. The mold has a recess aligned with a gate region of the mold, extending into the mold and configured to receive the distal portion of the valve pin when the distal portion of the valve pin extends beyond the gate region. The method includes advancing the distal portion of the valve pin into the recess until the mid-portion of the valve pin at least partially extends into the gate region, thereby establishing a flow path for a combined polymeric stream into the cavity at the gate region for forming a molded plastic article having at least one layer of a first polymeric material and at least one layer of a second polymeric material. The method also includes withdrawing the mid-portion of the valve pin from the gate region, thereby forming an injection-molded aperture in the resulting molded plastic article at the gate region.

    Multi-layer molding using temperature adjustment of flow rate in conjunction with shooting pot technology
    2.
    发明申请
    Multi-layer molding using temperature adjustment of flow rate in conjunction with shooting pot technology 有权
    多层成型使用温度调节流量与射出锅技术相结合

    公开(公告)号：US20060029691A1

    公开(公告)日：2006-02-09

    申请号：US11177464

    申请日：2005-07-07

    申请人： Douglas Sabin ,  Paul Swenson ,  Ronald Roberts

    发明人： Douglas Sabin ,  Paul Swenson ,  Ronald Roberts

    IPC分类号： B29C45/20

    CPC分类号： B29C45/2737 ,  B29B2911/1404 ,  B29B2911/1406 ,  B29B2911/14066 ,  B29B2911/1408 ,  B29B2911/14093 ,  B29B2911/1412 ,  B29B2911/14126 ,  B29B2911/14146 ,  B29B2911/14153 ,  B29C45/02 ,  B29C45/1646 ,  B29K2105/253

    摘要： Disclosed herein are methods and systems for forming a plurality of multiple layer plastic articles. The methods and systems utilize shooting pot technology in combination with a combination of thermal control elements and in some instances, specialized flow bore geometries to control a thermal property and a flow parameter of selected polymeric material flowing through the system to mold the plurality of multiple layer plastic articles. Both the systems and methods are well suited for use to perform simultaneous flow injection or sequential flow injection to form the plurality of multiple layer plastic articles. The systems and methods described therein beneficially reduce the mold cavity pitch size for multiple layer molds used with systems having shooting pot technology to a mold cavity pitch size found on conventional monolayer molds to provide a plurality of multiple layer plastic articles having a cost similar to monolayer plastic articles.

    摘要翻译： 本文公开了用于形成多个多层塑料制品的方法和系统。 该方法和系统利用射流缸技术结合热控制元件的组合，并且在一些情况下，专门的流动孔径几何形状来控制流过系统的选定聚合材料的热性质和流动参数以模制多个多层 塑料制品。 系统和方法都非常适用于执行同时流动注射或顺序流动注射以形成多个多层塑料制品。 其中描述的系统和方法有益地将用于具有射出缸技术的系统的多层模具的模腔间距尺寸减小到在常规单层模具上发现的模腔间距尺寸，以提供具有类似于单层的成本的多个多层塑料制品 塑料制品。

    Optimized flow to prevent core layer breakthrough
    3.
    发明授权
    Optimized flow to prevent core layer breakthrough 有权
    优化流程，防止核心层突破

    公开(公告)号：US06908581B2

    公开(公告)日：2005-06-21

    申请号：US10355642

    申请日：2003-01-31

    申请人： Douglas Sabin ,  Paul Swenson

    发明人： Douglas Sabin ,  Paul Swenson

    IPC分类号： B29C45/16

    CPC分类号： B29C45/1646 ,  B29C45/1607 ,  B29C45/1642 ,  B29C45/1643 ,  B29C2045/1648 ,  B29K2105/253

    摘要： A method of co-extruding a plurality of plastic material flowing streams into a mold cavity produces a molded product. Inner and outer streams of covering plastic materials are combined with at least one interior stream that is to serve as an interior core of a resulting molded plastic product. The combined streams are forced to flow along annular flow paths, with the annular interior stream encased within the inner and outer annular covering plastic material stream layers. The flows of the interior stream and the inner and outer streams are controlled so that: the interior stream has a flow velocity that is greater than an average velocity of the combined stream, and the interior stream does not flow along or across a zero-velocity-gradient streamline of the combined streams.

    摘要翻译： 将多个塑性材料流入模腔共挤出的方法产生模制产品。 覆盖塑料材料的内部和外部流与至少一个内部流组合，其用作所得模制塑料产品的内部芯。 组合的流被迫沿着环形流动路径流动，其中环形内部流包围在内部和外部环形覆盖塑料材料流层内。 控制内部流和内部和外部流的流动，使得：内部流具有大于组合流的平均速度的流速，并且内部流不沿着或跨越零速度流动 组合流的渐进流线。

    Co-injection nozzle with improved interior layer termination and method of using same
    4.
    发明申请
    Co-injection nozzle with improved interior layer termination and method of using same 有权
    具有改进的内层终止的共注射喷嘴及其使用方法

    公开(公告)号：US20040247739A1

    公开(公告)日：2004-12-09

    申请号：US10851284

    申请日：2004-05-21

    申请人： KORTEC, INC.

    发明人： Douglas Sabin ,  Paul Swenson

    IPC分类号： B29C045/22

    CPC分类号： B29C45/1603 ,  B29C45/1642 ,  B29K2105/253

    摘要： Disclosed herein are a method and apparatus for combining two or more streams of a polymeric material to form a plastic object. The method and apparatus are capable of ending an interior layer of the plastic object at a desired length to avoid the need to clean selected surfaces of components used to form the plastic object. The method and apparatus increase the velocity of the polymeric material used to form the plastic object in certain components used to form the plastic object. The increase in the velocity of the polymeric material facilitates the ending of the interior layer of the plastic object.

    摘要翻译： 本文公开了一种用于组合两种或更多种聚合物材料流以形成塑料物体的方法和装置。 该方法和装置能够以期望的长度终止塑料物体的内层，以避免清洁用于形成塑料物体的部件的选定表面。 所述方法和装置增加了用于形成塑料物体的某些部件中用于形成塑料物体的聚合物材料的速度。 聚合物材料的速度的增加有助于塑料物体内层的结束。

    METHOD OF MOLDING MULTI-LAYER POLYMERIC ARTICLES HAVING CONTROL OVER THE BREAKTHROUGH OF THE CORE LAYER
    7.
    发明申请
    METHOD OF MOLDING MULTI-LAYER POLYMERIC ARTICLES HAVING CONTROL OVER THE BREAKTHROUGH OF THE CORE LAYER 有权
    在核心层突破控制的多层聚合物制品的成型方法

    公开(公告)号：US20110217496A1

    公开(公告)日：2011-09-08

    申请号：US13043230

    申请日：2011-03-08

    申请人： Paul M. Swenson

    发明人： Paul M. Swenson

    IPC分类号： B32B1/02 ,  B29C47/06 ,  B29C45/16

    CPC分类号： B29C45/16 ,  B29C45/1642 ,  B29C2945/76545 ,  B29C2945/76555 ,  B29C2945/76568 ,  B29C2945/76765 ,  B29K2995/0069 ,  B29L2031/712 ,  Y10T428/1352

    摘要： Disclosed herein are methods and systems for co-extruding multiple polymeric material flow streams into a mold cavity to produce a molded plastic article. At least one interior core stream of a first polymeric material is surrounded by inner and outer streams of at least one other polymeric material. The interior core stream serves as an interior layer of a resultant molded plastic article while the inner and outer streams serve as inner and outer layers, respectively, of the resultant plastic article. The interior core stream is selectively directed to flow into or past a downstream branch channel in a mold cavity. The downstream branch channel branches from a primary channel in the mold cavity at a branch junction. The branch channel defines a protrusion portion of the resultant molded plastic article. The leading edge of the interior core stream is selectively controlled in the branch channel to position the leading edge at or near to the terminal end of the branch channel without having the leading edge of the interior core stream breakthrough a flow-front of the inner and outer streams. The resultant molded plastic article includes an interior layer formed of the first polymeric material that extends into, through and to a distal end of the protrusion while still being encased by inner and outer layers formed from the inner and outer flow streams.

    摘要翻译： 本文公开了用于将多个聚合物材料流流共同挤出到模腔中以产生模制塑料制品的方法和系统。 至少一个第一聚合物材料的内部核心流被至少一种其它聚合材料的内部和外部流包围。 内部芯流作为所得模制塑料制品的内层，而内部和外部流分别用作所得塑料制品的内层和外层。 内部芯流被选择性地导向流入或流过模腔中的下游分支通道。 下游分支通道从分支结处的模腔中的主通道分支。 分支通道限定所得模制塑料制品的突出部分。 内部芯流的前缘被选择性地控制在分支通道中，以将前缘定位在分支通道的末端或接近分支通道的末端，而不会使内芯流的前缘穿过内部流的前端， 外流。 所得到的模制塑料制品包括由第一聚合物材料形成的内层，该内层延伸到突起的远端并穿过突出部的远端，同时仍由内流和外流形成的内层和外层包围。

    Multilayer molding using temperature adjustment of flow rate in conjunction with shooting pot technology
    9.
    发明授权
    Multilayer molding using temperature adjustment of flow rate in conjunction with shooting pot technology 有权
    多层成型采用温度调节流速结合射出盆技术

    公开(公告)号：US07399442B2

    公开(公告)日：2008-07-15

    申请号：US11177464

    申请日：2005-07-07

    申请人： Douglas Sabin ,  Paul Swenson ,  Ronald Roberts

    发明人： Douglas Sabin ,  Paul Swenson ,  Ronald Roberts

    IPC分类号： B29C45/22

    CPC分类号： B29C45/2737 ,  B29B2911/1404 ,  B29B2911/1406 ,  B29B2911/14066 ,  B29B2911/1408 ,  B29B2911/14093 ,  B29B2911/1412 ,  B29B2911/14126 ,  B29B2911/14146 ,  B29B2911/14153 ,  B29C45/02 ,  B29C45/1646 ,  B29K2105/253

    摘要： Disclosed herein are methods and systems for forming a plurality of multiple layer plastic articles. The methods and systems utilize shooting pot technology in combination with a combination of thermal control elements and in some instances, specialized flow bore geometries to control a thermal property and a flow parameter of selected polymeric material flowing through the system to mold the plurality of multiple layer plastic articles. Both the systems and methods are well suited for use to perform simultaneous flow injection or sequential flow injection to form the plurality of multiple layer plastic articles. The systems and methods described therein beneficially reduce the mold cavity pitch size for multiple layer molds used with systems having shooting pot technology to a mold cavity pitch size found on conventional monolayer molds to provide a plurality of multiple layer plastic articles having a cost similar to monolayer plastic articles.

    摘要翻译： 本文公开了用于形成多个多层塑料制品的方法和系统。 该方法和系统利用射流缸技术结合热控制元件的组合，并且在一些情况下，专门的流动孔径几何形状来控制流过系统的选定聚合材料的热性质和流动参数以模制多个多层 塑料制品。 系统和方法都非常适用于执行同时流动注射或顺序流动注射以形成多个多层塑料制品。 其中描述的系统和方法有益地将用于具有射出缸技术的系统的多层模具的模腔间距尺寸减小到在常规单层模具上发现的模腔间距尺寸，以提供具有类似于单层的成本的多个多层塑料制品 塑料制品。

    Apparatus for throttle-valving control for the co-extrusion of plastic materials as interior core streams encased by outer and inner streams for molding and the like
    10.
    发明授权
    Apparatus for throttle-valving control for the co-extrusion of plastic materials as interior core streams encased by outer and inner streams for molding and the like 失效
    用于将塑料材料共挤出的节流阀控制装置作为用于模制的外部和内部流包围的内部芯流

    公开(公告)号：US5914138A

    公开(公告)日：1999-06-22

    申请号：US720385

    申请日：1996-09-27

    申请人： Paul Swenson

    发明人： Paul Swenson

    IPC分类号： B29C45/16 ,  B29C45/78

    CPC分类号： B29C45/1607 ,  B29C45/1642 ,  B29C2045/1614

    摘要： A multiple-plastic stream co-extruder as for injection-molding cavities, in which the extruder is internally provided therewithin and therealong with a restrictor or throttle pin, rod or element that forces combined plastic material streams, formed with an interior core stream encased in outer and inner stream layers, into corresponding concentric annular flow stream layers that are ultimately split transversely in opposite directions into a cavity gated to the extruder, and with the core stream at a region of zero gradient in the transverse flow velocity profile within the extruder and cavity.

    摘要翻译： 用于注射成型腔的多塑料流共挤出机，其中挤出机内部设置有挤出机，并具有限制器或节流销，杆或元件，其强制组合的塑料材料流，其形成有封装在内部芯流中 外层和内层层分成对应的同心环形流动流层，其最终在相反方向上横向分裂成与浇口相连的空腔，并且芯流在挤出机内的横向流速分布中为零梯度的区域;以及 腔。