SCULPTED EXTRUSION DIE AND METHOD OF ADJUSTING THE THICKNESS OF AN EXTRUDED SHEET
    1.
    发明申请
    SCULPTED EXTRUSION DIE AND METHOD OF ADJUSTING THE THICKNESS OF AN EXTRUDED SHEET 审中-公开
    压缩挤压机和调整挤压片厚度的方法

    公开(公告)号:WO2013013033A1

    公开(公告)日:2013-01-24

    申请号:PCT/US2012/047388

    申请日:2012-07-19

    Inventor: ULCEJ, John, A.

    Abstract: An extrusion device includes a sculpted extrusion die (100) comprising a pair of mating die lips (108, 110) having sculpted surfaces (118,120) and defining a die exit (112) for an extrudate. The contour of the sculpted surfaces (118, 120) is substantially similar to the contour of a juxtaposed surface (210) configured for receiving the extrudate from the die exit (112) of the sculpted extrusion die (210). The sculpted extrusion die preferably comprises a die lip adjustment mechanism (122) for adjusting a thickness of the extrudate exiting the die exit (112) and the thickness of the extrudate received on the juxtaposed surface (210). The air gap between the die exit (112) of the sculpted extrusion die and the juxtaposed surface (210) preferably is substantially eliminated by adjusting the distance between the sculpted surfaces (118,120) and the juxtaposed surface (210). A method of adjusting a thickness of a substantially continuous sheet of extrudate formed using an embodiment of the sculpted extrusion die (210) is also provided.

    Abstract translation: 挤出装置包括雕刻的挤出模具(100),其包括具有雕刻表面(118,120)并且限定用于挤出物的模具出口(112)的一对配合模唇(108,110)。 雕刻表面(118,120)的轮廓基本上类似于被配置用于接收来自雕刻挤出模具(210)的模具出口(112)的挤出物的并置表面(210)的轮廓。 雕刻挤出模具优选地包括用于调节离开模头出口(112)的挤出物的厚度和接收在并置表面(210)上的挤出物的厚度的模唇调节机构(122)。 优选地,通过调节雕刻表面(118,120)和并置表面(210)之间的距离,基本上消除了雕刻的挤出模头的模具出口(112)与并置的表面(210)之间的空气间隙。 还提供了使用雕刻的挤出模具(210)的实施例来调节形成的基本上连续的挤出物片材的厚度的方法。

    BLOW MOLDING EXTRUSION APPARATUS AND METHOD
    2.
    发明申请

    公开(公告)号:WO2007027303A3

    公开(公告)日:2007-03-08

    申请号:PCT/US2006/027410

    申请日:2006-07-13

    Abstract: An apparatus for the extrusion of a multi-layer parison comprises an extrusion blow molding head having a bore passing through the head with a diverter sleeve located within the bore. There is a first manifold in fluid communication with a first die inlet, and a second manifold in communication with a second die inlet. The first and second manifold substantially surround the diverter sleeve, wherein the first manifold is in fluid communication with a proximal end of a flow path formed by the diverter sleeve and the bore and the second manifold is in fluid communication with the flow path at a first location downstream from the proximal end of the flow path Lands having vanable width are positioned between the manifolds and the flow path. The manifolds and lands are sized so that a polymer melt is maintained in laminar flow through the flow path.

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