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    Stretch Film Using a Multi-Manifold Die
    2.
    发明申请
    Stretch Film Using a Multi-Manifold Die 审中-公开
    使用多歧管模具的拉伸膜

    公开(公告)号：US20140327175A1

    公开(公告)日：2014-11-06

    申请号：US14267375

    申请日：2014-05-01

    申请人： Paragon Films, Inc.

    发明人： Shaun Eugene Pirtle

    IPC分类号： B29C47/30 ,  B29C47/00 ,  B29C47/06

    CPC分类号： B29C48/30 ,  B29C48/08 ,  B29C48/18 ,  B29C48/19 ,  B29C48/21 ,  B29C48/307 ,  B29C48/345 ,  B29C48/49 ,  B29C48/70 ,  B29C48/92 ,  B29C2948/92704

    摘要： A die for forming a stretch film includes at least: a primary passage for receiving a primary stream, the primary passage having a length extending from a die inlet opening to a die outlet opening; and a flow assembly for supplying a secondary stream to the primary passage at a secondary passage opening. A method for forming a stretch film includes: introducing a primary stream to a primary passage of a die at a die inlet opening, the primary passage having a length extending from the die inlet opening to a die outlet opening; supplying a secondary stream to the primary passage at a secondary passage opening; combining the primary stream and the secondary stream to create a combined stream; passing the combined stream through said die outlet opening; and passing the combined stream from the die outlet opening to a casting unit, thereby forming a film web.

    摘要翻译： 用于形成拉伸膜的模具至少包括：用于接收初级流的主通道，所述主通道具有从模具入口开口延伸到模具出口开口的长度; 以及用于在次级通道开口处将次流供应到主通道的流动组件。 一种形成拉伸膜的方法包括：将一次流引入模具入口开口的模具的主通道，该主通道具有从模具入口开口延伸到模具出口开口的长度; 在次级通道开口处将次流供应到主通道; 组合主流和次流以创建组合流; 使组合流通过所述模具出口; 并将组合的流从模具出口开口传递到铸造单元，从而形成薄膜网。

    Extrusion head for extruding a tube-shaped strand from at least one thermoplastic melt for producing blown films
    9.
    发明申请
    Extrusion head for extruding a tube-shaped strand from at least one thermoplastic melt for producing blown films 审中-公开
    挤出头，用于从至少一种用于生产吹塑薄膜的热塑性熔体挤出管状股线

    公开(公告)号：US20020086071A1

    公开(公告)日：2002-07-04

    申请号：US09997403

    申请日：2001-11-29

    发明人： Anton Rubhausen

    IPC分类号： B29C047/06

    CPC分类号： B29C48/705 ,  B29C48/09 ,  B29C48/10 ,  B29C48/21 ,  B29C48/30 ,  B29C48/32 ,  B29C48/3363 ,  B29C48/34 ,  B29C48/70

    摘要： An extrusion head for extruding a tube-shaped strand from at least one thermoplastic melt for producing blown films, containing an internal member and an external member, between which an annular space is formed. The external member has at least one extrusion module with two extrusion members, which are arranged on top of each other. A separating gap, which terminates in the annular space, is formed between the extrusion members of each one of the extrusion modules. A channel system for distributing the plastic melt into the annular space is formed in each extrusion module. The channel system includes an inlet area, a branching area and a spiral area, each of which is located on a separate level, wherein the level of the inlet area is arranged between the level of the branching area and the level of the spiral area, and a group of first connecting channels leads from the inlet area into the branching area, and a group of second connecting channels leads from the branching area to the spiral area.

    摘要翻译： 一种用于从至少一个热塑性熔体挤出管状股线的挤压头，用于生产包含内部构件和外部构件的吹塑薄膜，在其间形成有环形空间。 外部构件具有至少一个具有两个挤出构件的挤出模块，它们彼此顶部布置。 在每个挤出模块的挤出构件之间形成有分隔间隙，其终止在环形空间中。 在每个挤出模块中形成用于将塑料熔体分配到环形空间中的通道系统。 通道系统包括入口区域，分支区域和螺旋区域，每个区域位于单独的水平面上，其中入口区域的高度设置在分支区域的高度与螺旋区域的高度之间， 并且一组第一连接通道从入口区域引导到分支区域，并且一组第二连接通道从分支区域引导到螺旋区域。