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    Screw extruder with improved dispersive mixing elements
    51.
    发明授权
    Screw extruder with improved dispersive mixing elements 有权
    螺杆挤出机具有改进的分散混合元件

    公开(公告)号：US6136246A

    公开(公告)日：2000-10-24

    申请号：US241822

    申请日：1999-02-01

    申请人： Chris J. Rauwendaal ,  Paul J. Gramann ,  Bruce A. Davis ,  Tim A. Osswald

    发明人： Chris J. Rauwendaal ,  Paul J. Gramann ,  Bruce A. Davis ,  Tim A. Osswald

    IPC分类号： B29C47/00 ,  B29C47/38 ,  B29C47/40 ,  B29C47/60 ,  B29C47/62 ,  B29C47/64 ,  B29C47/66

    CPC分类号： B29C47/60 ,  B29C47/0825 ,  B29C47/0871 ,  B29C47/38 ,  B29C47/402 ,  B29C47/404 ,  B29C47/605 ,  B29C47/6075 ,  B29C47/6081 ,  B29C47/62 ,  B29C47/66 ,  B29C47/0009

    摘要： A screw extruder (10) having a barrel (18) which has a bore (26) defining an inner surface (44) and one or more extruder screws (28), positioned within the bore (26). The extruder screw or screws (28) include a central shaft (34) and one or more screw flights (30). The extruder screw or screws (28) farther including one or more dispersive mixing elements (204), (234), (308), (406), (508), (558), which interact with the inner surface of the barrel (44) to form one or more progressively narrowing passages (46) through which material is forced into multiple regions of high elongational and shear stress (480, (120), (214), (310), (410), (510), (564).A second preferred embodiment is a screw extruder (10) having a barrel (18) having a bore (26) defining an inner surface (44) and one or more extruder screws (600), (701), positioned within the bore (26). The extruder screw or screws (600), (701) include a central shaft (602), (706) and a number of dispersive mixing elements (604), (608), (714), which are configured and positioned to form a number of progressively narrowing passages (606), (716) through which material is forced into multiple regions of high elongational and shear stress (608), (718).

    摘要翻译： 一种具有筒体（18）的螺杆挤出机（10），其具有限定内表面（44）的孔（26）和位于所述孔（26）内的一个或多个挤出机螺杆。 挤压机螺杆或螺钉（28）包括中心轴（34）和一个或多个螺旋螺纹（30）。 挤出机螺杆或螺钉（28）进一步包括一个或多个分散混合元件（204），（234），（308），（406），（508），（558），其与筒的内表面 形成一个或多个逐渐变窄的通道（46），材料通过该通道被迫进入高伸长和剪切应力的多个区域（480，（120），（214），（310），（410），（510）， 第二优选实施例是具有筒（18）的螺杆挤出机（10），其具有限定内表面（44）的孔（26）和位于内部表面（44））内的一个或多个挤出机螺杆（600），（701） 挤出机螺杆（600），（701）包括中心轴（602），（706）和多个分散混合元件（604），（608），（714），其中 构造并定位成形成多个逐渐变窄的通道（606），（716），材料通过该通道被迫进入高伸长和剪切应力的多个区域（608），（718）。

    Method of cooling a foam extrusion mixture to an extrudable temperature
    52.
    发明授权
    Method of cooling a foam extrusion mixture to an extrudable temperature 有权
    将泡沫挤出混合物冷却至可挤压的温度的方法

    公开(公告)号：US6132077A

    公开(公告)日：2000-10-17

    申请号：US384872

    申请日：1999-08-27

    申请人： James D. Fogarty

    发明人： James D. Fogarty

    IPC分类号： B29C44/34 ,  B29C47/60 ,  B29C47/64 ,  B29C47/82 ,  B29B7/82

    CPC分类号： B29C47/60 ,  B29C44/3419 ,  B29C44/3442 ,  B29C47/6075 ,  B29C47/64 ,  B29C47/82 ,  B29C47/822 ,  B29C47/825 ,  B29C47/0019 ,  B29C47/0023 ,  B29C47/003

    摘要： A method of cooling a foam extrusion mixture to an extrudable temperature as the foam extrusion mixture passes through an elongate barrel including the steps of drawing heat from a perimeter surface of the barrel, while urging the extrusion mixture through the barrel towards an outlet of the barrel, and also circulating at least some quantities of the extrusion mixture disposed a spaced apart distance from the perimeter surface of the barrel away from the outlet of the barrel and towards the perimeter surface of the barrel by passing at least some of the extrusion mixture through at least one circulation channel defined in the screw flight a spaced apart distance from the perimeter surface of the barrel, and having an asymmetrical, partially tapered inlet area that is smaller than its outlet area, thereby maximizing the quantity and flow velocity of said extrusion mixture which enters said circulation channel and disrupting a flow pattern of the extrusion mixture through the circulation channel in order to achieve substantially uniform cooling and homogenization of the extrusion mixture.

    摘要翻译： 当泡沫挤出混合物通过细长筒体时，将泡沫挤出混合物冷却至可挤出温度的方法，包括从桶的周边表面抽出热量的步骤，同时将挤出混合物通过筒体朝向筒体的出口 并且还循环至少一些量的挤出混合物，其通过将至少一些挤出混合物通过至少一些挤出混合物而与管筒的出口远离筒的出口并且朝向桶的周边表面间隔开距离设置 至少一个循环通道限定在螺旋螺旋中，与筒的周边表面间隔开距离，并且具有小于其出口面积的不对称的，部分渐缩的入口面积，从而最大化所述挤出混合物的量和流速 进入所述循环通道并通过循环破坏挤出混合物的流动模式 n通道，以实现挤出混合物的基本均匀的冷却和均化。

    Extruder injection apparatus
    55.
    发明授权
    Extruder injection apparatus 失效
    挤出机注射装置

    公开(公告)号：US5318357A

    公开(公告)日：1994-06-07

    申请号：US899347

    申请日：1992-06-16

    申请人： Paul N. Colby ,  Bradley P. Smith ,  Shawn P. Bodnar

    发明人： Paul N. Colby ,  Bradley P. Smith ,  Shawn P. Bodnar

    IPC分类号： B29C47/60 ,  B01F7/08 ,  B29B7/42

    CPC分类号： B29C47/60 ,  B29C47/6075 ,  B29C47/0009

    摘要： A screw for use in an plasticating injection apparatus includes a plurality of interrupted primary flights. An outer surface of a primary valley is formed by the primary flights and features a plurality of plateaus. The plateaus span adjacent sections of the primary flights and define shallow levels between deeper levels of the primary valleys. This depth differential contributes to a turbulent mixing action which, along with the primary and secondary valleys, contributes to improve mixing action within a metering section of the screw. The primary flights are interrupted by secondary valleys which are of opposite hand to the primary valleys.

    摘要翻译： 用于塑化注射装置的螺钉包括多个中断的一次航行。 主谷的外表面由主飞行形成并且具有多个平台。 高原跨越主要航段的相邻部分，并定义较深层次的主要峡谷之间的浅层。 该深度差异有助于湍流混合作用，其与主要和次要谷一起有助于改善螺杆的计量部分内的混合作用。 主要航班由与主要山谷相反的次级峡谷中断。

    Extruder and screw with wear surfaces
    56.
    发明授权
    Extruder and screw with wear surfaces 失效
    挤出机和螺丝磨损表面

    公开(公告)号：US5135378A

    公开(公告)日：1992-08-04

    申请号：US511091

    申请日：1990-04-19

    申请人： Larry D. Catton

    发明人： Larry D. Catton

    IPC分类号： B29C47/08 ,  B29C47/60

    CPC分类号： B29C47/0844 ,  B29C47/0801 ,  B29C47/60 ,  B29C47/6043 ,  B29C47/6075 ,  B29C47/0009

    摘要： A twin screw extruder includes screw crests having wear surfaces formed of weld bead, deposited on the edges of the crests and into a groove in the crest to form a plurality of spaced dams or fences across the groove between the edges of the crest, and a molybdenum fitting between the dams. The dams or fences prevent unraveling of the entire molybdenum fitting, in the event of separation between the fitting and the screw.

    摘要翻译： 双螺杆挤出机包括具有由焊缝形成的磨损表面的螺旋牙顶，沉积在波峰的边缘上并形成在波峰中的凹槽中，以在波峰的边缘之间的沟槽上形成多个间隔开的坝或围栏， 大坝之间的钼配合。 在配件和螺丝之间分离的情况下，水坝或围栏可防止整个钼配件的拆开。

    Extruder screws and method for accelerating melting in plasticating extruders
    57.
    发明授权
    Extruder screws and method for accelerating melting in plasticating extruders 失效
    挤出机螺杆及加塑挤出机熔化方法

    公开(公告)号：US5056925A

    公开(公告)日：1991-10-15

    申请号：US531760

    申请日：1990-06-01

    申请人： Imrich Klein

    发明人： Imrich Klein

    IPC分类号： B29C47/60 ,  B29C47/64

    CPC分类号： B29C47/64 ,  B29C47/60 ,  B29C47/6075 ,  B29C47/0009

    摘要： Apparatus and method for use in a plasticating extruder of the type having an axially extending elongate barrel for preparing a plasticated material from solids introduced into the extruder wherein an axially extending screw conveyor continuously conveys material in a downstream direction as the material is melted within a channel in the screw conveyor, the channel extending between a leading face and a trailing face on a flight of the screw conveyor such that a solid bed of material is established and melting takes place to form melted material within a relatively thin melt film established between the solid bed and the barrel, the melted material passing progressively from the melt filn into a melt pool formed at the leading face of the flight, and melted material is transferred within a conduit in the screw conveyor from the melt pool to the solid bed, whereby the transferred melted material is forced into intimate contact with unmelted material in the solid bed to heat the unmelted material and accelerate melting.

    摘要翻译： 用于具有轴向延伸的细长筒的塑化挤出机的装置和方法，用于从引入挤出机的固体制备塑化材料，其中当材料在通道内熔化时，轴向延伸的螺旋输送机沿下游方向连续输送材料 在螺旋输送机中，通道在螺旋输送机的螺旋线的前表面和后表面之间延伸，使得建立固体材料床，并且熔化发生，以在固体之间建立的相对薄的熔体膜内形成熔融材料 床和桶，熔融材料从熔体丝逐渐流入形成在飞行的前面的熔池中，熔融的材料在螺旋输送机的导管内从熔池传送到固体床，由此， 转移的熔融材料被迫与固体床中未熔化的材料紧密接触，以加热未熔化的材料 材料加速融化。

    Screw extruders
    59.
    发明授权
    Screw extruders 失效
    螺杆挤出机

    公开(公告)号：US4462692A

    公开(公告)日：1984-07-31

    申请号：US490647

    申请日：1983-05-02

    申请人： Paul Meyer

    发明人： Paul Meyer

    IPC分类号： B29C47/66 ,  B29B7/00 ,  B29B7/42 ,  B29C47/00 ,  B29C47/36 ,  B29C47/38 ,  B29C47/60 ,  B29C47/62 ,  B29C47/92 ,  B65G33/14 ,  B65G33/26 ,  F04D3/02 ,  B29B1/06

    CPC分类号： B29C47/666 ,  B29B7/425 ,  B29C47/361 ,  B29C47/38 ,  B29C47/6012 ,  B29C47/6018 ,  B29C47/6025 ,  B29C47/6043 ,  B29C47/6075 ,  B29C47/62 ,  B29C47/92 ,  B29C2947/92514 ,  B29C2947/92704 ,  B29C2947/92895 ,  B29C47/0009 ,  B29C47/60

    摘要： An extrusion apparatus having a barrel and a rotatable threaded screw coaxially positioned therein is disclosed. The apparatus includes an upstream inlet section having an opening therein for receiving material to be processed by the apparatus, a compression section downstream of the inlet section, and a mixing or plasticizing section downstream of the compression section. The interior surface of the barrel is provided with an undercut therein which intercommunicates the feed opening with the compression section and has a portion thereof which extends downstream in the compression section about the interior surface of the barrel with a continuously decreasing cross-sectional area. The undercut may be formed in a cylindrical insert carried within the barrel and, in an alternate embodiment, a second undercut cylindrical insert positioned about the first insert and rotatable relative thereto may be employed to vary the cross-sectional area of the undercut.

    摘要翻译： 公开了一种挤出设备，其具有筒体和同轴地位于其中的可旋转的螺纹螺杆。 该装置包括：上游入口部分，其中具有用于接收由该装置处理的材料的开口，入口部分下游的压缩部分，以及压缩部分下游的混合或塑化部分。 筒体的内表面设置有底切，其中进给开口与压缩部分相通，并且其一部分在压缩部分的下游延伸，围绕筒的内表面具有连续减小的横截面面积。 底切可以形成在承载在筒内的圆柱形插入件中，并且在替代实施例中，可以使用围绕第一插入件定位并且可相对于其旋转的第二底切圆柱形插入件来改变底切的横截面面积。

    Extruder screw
    60.
    发明授权
    Extruder screw 失效
    挤出机螺丝

    公开(公告)号：US4092015A

    公开(公告)日：1978-05-30

    申请号：US724941

    申请日：1976-09-20

    申请人： Klaus Koch

    发明人： Klaus Koch

    IPC分类号： B29B7/00 ,  B29C47/00 ,  B29C47/38 ,  B29C47/60 ,  B29C47/62 ,  A21C1/06

    CPC分类号： B29C47/60 ,  B29C47/6075 ,  B29C47/625 ,  B29C47/0009 ,  Y02P70/263

    摘要： The screw for an extruder for working plastic material and rubber comprises along its length several zones with different numbers of threads or webs. In at least one portion of its length, the screw has a plurality of single thread zones alternating with two-thread zones. In each of the two-thread zones there are two webs which are diametrically disposed and extend parallel to the axis of the screw. These axially extending webs have inclined or wedge shaped flanks so that a wedge shaped aperture is formed between the cylinder wall of the extruder and the wedge shaped flanks of the axially extending webs. One web of the two-thread zone joins the web of the preceding single thread zone and the other web of the two-thread zone joins the web of the following single thread zone at the points where the axially extending webs meet the webs of the two-thread zone.

    摘要翻译： 用于加工塑料材料和橡胶的挤出机的螺杆包括沿其长度的几个具有不同数量的螺纹或腹板的区域。 在其长度的至少一部分中，螺钉具有与双螺纹区域交替的多个单螺纹区域。 在每个双螺纹区域中，两个腹板沿径向设置并平行于螺钉的轴线延伸。 这些轴向延伸的腹板具有倾斜或楔形的侧面，使得在挤出机的气缸壁和轴向延伸腹板的楔形侧面之间形成楔形孔。 双螺纹区域的一个腹板连接前一个单一螺纹区域的腹板，并且双螺纹区域的另一个腹板在轴向延伸的腹板与两个腹部的腹板相接合的点处连接下列单螺纹区域的腹板 绕线区。