公开(公告)号：US20140159275A1

公开(公告)日：2014-06-12

申请号：US14233863

申请日：2012-07-19

Applicant: Emmanouil Lempidakis ,  Ioannis Melas ,  Minas Kalarakis

Inventor： Emmanouil Lempidakis ,  Ioannis Melas ,  Minas Kalarakis

IPC: B29C47/26 ,  B29C47/06

CPC classification number: B29C47/268 ,  B29C47/0026 ,  B29C47/065 ,  B29C47/261 ,  B29C47/263 ,  B29C47/265 ,  B29C47/364 ,  B29C47/56 ,  B29C47/70 ,  B29C47/705

Abstract: A large concentric co-extrusion die (1) is described having a plurality of annular or conical die mandrel layers (201-205). Each layer is formed between a pair of adjacent annular or conical die mandrels (101-106) defining between them a flow path for molten thermoplastics material from an inlet to an annular extrusion outlet (110) through which a thermoplastics tubular extrusion is formed in use. Extrusion takes place through the multiple annular layer outlets (301-305) to form a multi-layered product. At least one layer (203) of the annular or conical die mandrels has a plurality of molten material inlets arranged around the external circumference of the co-extrusion die with each inlet being connected to a feed channel (403) which has plural bifurcations (403.1, 403.2, 403.3) providing 2n subsidiary outlet feed channels (503) where n is the number of bifurcations. Each subsidiary outlet feed channel being connected to a corresponding helical outlet channel (703).

Abstract translation: 描述了具有多个环形或圆锥形模心层层（201-205）的大型同心共挤出模头（1）。 每个层形成在一对相邻的环形或圆锥形模心轴（101-106）之间，在它们之间形成用于从入口到环形挤出出口（110）的熔融热塑性材料的流动通道，在其中形成热塑性管状挤出物 。 通过多个环形层出口（301-305）进行挤出以形成多层产品。 环形或圆锥形模芯心轴的至少一层（203）具有围绕共挤出模头的外圆周布置的多个熔融材料入口，每个入口连接到具有多个分支（403.1）的进料通道（403） ，403.2,403.3），其提供2n个辅助出口馈送通道（503），其中n是分叉数。 每个辅助出口进料通道连接到相应的螺旋出口通道（703）。

公开(公告)号：US07988438B2

公开(公告)日：2011-08-02

申请号：US12028990

申请日：2008-02-11

Applicant: Gerald S. Sutton ,  William V. Shaffer ,  Randall A. Kolbet

Inventor： Gerald S. Sutton ,  William V. Shaffer ,  Randall A. Kolbet

IPC: B29C47/08 ,  B29C47/20

CPC classification number: B29C47/021 ,  B29C47/0023 ,  B29C47/0033 ,  B29C47/065 ,  B29C47/0872 ,  B29C47/126 ,  B29C47/261 ,  B29C2947/92085 ,  B29C2947/92304 ,  B29C2947/92409 ,  B29C2947/92609 ,  B29C2947/92904 ,  B29C2947/9298 ,  B29L2009/00 ,  B29L2016/00 ,  B29L2023/22 ,  B29L2024/003

Abstract: An extrusion die configured to have an interior chamber sealed from the atmosphere is disclosed. The extrusion die includes an extrusion die head disposed at a downstream end of the interior chamber; and a vacuum seal disposed at an upstream end of the interior chamber; wherein the vacuum seal is configured to selectively form a seal between the extrusion die and a product disposed in the interior chamber. The vacuum seal includes an annular sealing surface disposed at an inner diameter of the vacuum seal; a hollow, interior chamber; and a plurality of bellows disposed between the annular sealing surface and the extrusion die; wherein the vacuum seal is configured to selectively form a seal between the extrusion die and a product disposed in the interior chamber. A method of selectively sealing an end of an extrusion die is also disclosed.

Abstract translation: 公开了一种配置成具有与大气密封的内部室的挤出模头。 挤出模具包括设置在内部室的下游端的挤出模头; 以及设置在所述内部室的上游端的真空密封件; 其中所述真空密封件构造成选择性地在所述挤出模具和设置在所述内部室中的产品之间形成密封。 真空密封件包括设置在真空密封件的内径处的环形密封表面; 一个中空的室内; 以及设置在所述环形密封表面和所述挤压模之间的多个波纹管; 其中所述真空密封件构造成选择性地在所述挤出模具和设置在所述内部室中的产品之间形成密封。 还公开了一种选择性地密封挤出模头的端部的方法。

公开(公告)号：US07357890B2

公开(公告)日：2008-04-15

申请号：US11252381

申请日：2005-10-18

Applicant: Tim Pritchett ,  Jennifer Peavey

Inventor： Tim Pritchett ,  Jennifer Peavey

IPC: B29C47/64 ,  B29C47/06

CPC classification number: B29C47/065 ,  B29C47/0023 ,  B29C47/003 ,  B29C47/261 ,  B29C47/56 ,  B29C47/6012

Abstract: An apparatus and method for extruding a multilayered article employs a shearing rod connected to the end of an extruder screw. The shearing rod is rotated along with the extruder screw and shears the polymer materials being advanced along an annular space between the shearing rod and the inner surface of a bore in a housing. A first melt stream of polymer material is advanced by the extruder screw into the annular space. A second melt stream of polymer material is fed (e.g., from a second extruder) through a passage in the housing into the annular space to join with the first melt stream therein. The rotation of the shearing rod shears the melt streams and swirls them together to produce a multiplicity of layers of the polymer materials.

Abstract translation: 用于挤出多层制品的装置和方法采用连接到挤出机螺杆的端部的剪切杆。 剪切杆与挤出机螺杆一起旋转，并且剪切聚合物材料沿着剪切杆和壳体中的孔的内表面之间的环形空间前进。 聚合物材料的第一熔体流由挤压机螺杆推进到环形空间中。 聚合物材料的第二熔体流（例如，从第二挤出机）通过壳体中的通道进入环形空间以与其中的第一熔体流接合。 剪切杆的旋转剪切熔体流并将其旋转在一起以产生多个聚合物材料层。

公开(公告)号：US07074027B2

公开(公告)日：2006-07-11

申请号：US09788910

申请日：2001-02-19

Applicant: Joseph M. Starita

Inventor： Joseph M. Starita

IPC: B29C47/06

CPC classification number: F16L11/15 ,  B29C44/0492 ,  B29C47/0023 ,  B29C47/065 ,  B29C47/126 ,  B29C47/261 ,  B29C47/265 ,  B29C47/86 ,  B29C47/862 ,  B29C47/864 ,  B29K2105/04 ,  F16L9/121

Abstract: Extrusion dies for forming dual wall corrugated plastic pipe and dual wall plastic pipe having a foam annular core that provides homogenous melt flow to each axially displaced orifice by means of an individual concentric spiral mandrel are disclosed. Spiral mandrels transport the melt from the extruders initially in spiral paths and then to spiral paths having diminishing depths so that the melt from adjacent spiral paths mix axially resulting in an annular path of homogenous melt. Extrusion dies for real time, continuous and remote control of the openings of the axially displaced orifices by moving the die lip closest and furthest from the extruder in a precise manner are also disclosed. A means for controlling separation of the die lips for both the inner and outer wall walls of the pipe gives the pipe manufacturer the benefit of better controlling quality in real time and changing grades on the fly by controlling wall thickness.

Abstract translation: 公开了用于形成双壁波纹塑料管和具有泡沫环形芯的双壁塑料管的挤出模具，其通过单独的同心螺旋心轴向每个轴向移动的孔提供均匀的熔体流动。 螺旋心轴首先从挤出机输送熔体，然后以螺旋形路径传送熔融物，然后将螺旋路径输送到具有减小的深度的螺旋路径，使得来自相邻螺旋路径的熔体轴向混合，形成均匀熔体的环形路径。 还公开了通过以精确的方式移动距离挤出机最靠近和最远的模唇，来实时，连续和远程地控制轴向移动孔的开口的挤出模具。 用于控制管壁内壁和外墙壁的模唇分离的手段使管制造商能够通过控制壁厚实时更好地控制质量和改变飞行中的等级。

公开(公告)号：US20040217519A1

公开(公告)日：2004-11-04

申请号：US10747636

申请日：2003-12-29

Applicant: Mitsuboshi Belting Ltd.

Inventor： Takayuki Tagawa ,  Tomohiro Miwa ,  Toshihiro Nishimura

IPC: B29C035/00

CPC classification number: B29C47/0004 ,  B29C47/0023 ,  B29C47/065 ,  B29C47/261 ,  B29D29/00 ,  B29K2021/00 ,  B29K2105/06 ,  B29K2301/10 ,  B29L2031/7094

Abstract: A method of manufacturing a power transmission belt having a body with a length and a cushion rubber layer in which at least one carrying member is embedded so as to extend lengthwise of the body. The method includes the steps of: extrusion molding (a) a first rubber composition including rubber with short fibers therein and (b) a second rubber composition that is different than the first rubber composition to produce a first sheet in which the second rubber composition defines at least a part of the cushion rubber layer; applying the at least one load carrying member to the second rubber composition to produce a preform assembly; and processing the preform assembly to produce a power transmission belt.

Abstract translation: 一种制造具有长度的本体和缓冲橡胶层的动力传递带的方法，其中至少一个承载构件被嵌入以沿身体的纵向延伸。 该方法包括以下步骤：挤压成型（a）包含短纤维的橡胶的第一橡胶组合物和（b）不同于第一橡胶组合物的第二橡胶组合物，以制备其中第二橡胶组合物定义的第一片 缓冲橡胶层的至少一部分; 将所述至少一个承载构件施加到所述第二橡胶组合物以产生预成型件组件; 并处理预制组件以产生动力传动带。

公开(公告)号：US06793475B2

公开(公告)日：2004-09-21

申请号：US10022576

申请日：2001-12-17

Applicant: Hans-Ullrich Schmidt ,  Udo Schütz ,  Jürgen Schulz

Inventor： Hans-Ullrich Schmidt ,  Udo Schütz ,  Jürgen Schulz

IPC: B29C4706

CPC classification number: B29C47/0822 ,  B29C47/0023 ,  B29C47/0818 ,  B29C47/261

Abstract: Disclosed is a nozzle arrangement for the coextrusion of a product with at least two layers, whereby a distributor portion 14 adjacent to the extruder is provided through which an extruding mass is delivered to the extruder and whereby a nozzle portion 12 for the extrusion of the extrusion mass is connected to the distributor portion, whereby in accordance with the invention a mounting and connecting base is provided between the distributor portion and the nozzle portion.

Abstract translation: 公开了一种用于共挤出具有至少两层的产品的喷嘴装置，由此提供与挤出机相邻的分配器部分14，通过该喷嘴装置将挤出物质输送到挤出机，由此用于挤出挤出机的喷嘴部分12 质量体连接到分配器部分，由此根据本发明，在分配器部分和喷嘴部分之间设置安装和连接底座。

公开(公告)号：US06787092B2

公开(公告)日：2004-09-07

申请号：US09827310

申请日：2001-04-06

Applicant: Harry Chan ,  Elio Moy

Inventor： Harry Chan ,  Elio Moy

IPC: B29C4706

CPC classification number: B29C47/065 ,  B29C47/0023 ,  B29C47/261 ,  B29C47/86 ,  B29C47/862 ,  B29C47/8865 ,  B29C47/902

Abstract: There is provided a pipe extrusion die that includes a first and second die assembly. The first and second die assembly each include an extrusion head, a nozzle carrying an outer die lip, a hollow mandrel, an inner mandrel carrying an inner die lip, and a layer-forming channel. The layer-forming channel is defined by the space between the nozzle and inner mandrel. The extrusion die includes a space between the nozzle of the second die assembly and the inner mandrel of the first die assembly such that the first and second die assembly do not share a common wall. The space between the inner and outer die lip (die gap) can be individually adjusted and the second die assembly is freely movable relative to the first die assembly. The extrusion die also includes a vacuum cooling mandrel with a single cooling channel and multiple vacuum ports that provide improved vacuum control over the final die product.

Abstract translation: 提供了一种管挤出模具，其包括第一和第二模具组件。 第一和第二模具组件各自包括挤出头，承载外模唇的喷嘴，中空心轴，承载内模唇的内心轴和层形成通道。 层形成通道由喷嘴和内心轴之间的空间限定。 挤出模具包括在第二模具组件的喷嘴和第一模具组件的内心轴之间的空间，使得第一模具组件和第二模具组件不共享共同的壁。 可以单独地调节内模唇和外模唇之间的空间（模间隙），并且第二模组可相对于第一模组装自由移动。 挤出模具还包括具有单个冷却通道和多个真空端口的真空冷却心轴，其提供对最终模具产品的改进的真空控制。

公开(公告)号：US20030100869A1

公开(公告)日：2003-05-29

申请号：US10335743

申请日：2003-01-02

Applicant: SciMed Life Systems, Inc.

Inventor： Lixiao Wang

IPC: A61M005/00 ,  A61M025/00

CPC classification number: B29C47/065 ,  A61M25/0009 ,  A61M25/0045 ,  B29C47/0023 ,  B29C47/24 ,  B29C47/261 ,  B29L2031/7542

Abstract: A tubular extruded member particularly suitable for use in medical devices such as intravascular catheters and guide wires, wherein the extruded tubular member includes multiple layers having biaxial helical orientation in different directions. A counter-rotation extrusion process may be used to orient the layers in different biaxial helical directions. The counter-rotation extrusion process provides orientation in two different circumferential directions in addition to a longitudinal direction. By combining the dual direction or biaxial helical orientation with multiple layers, different layers of the tubular member may be tailored to have the desired mechanical properties.

Abstract translation: 特别适用于诸如血管内导管和引导线的医疗装置中的管状挤出构件，其中挤压管状构件包括在不同方向上具有双轴螺旋取向的多个层。 可以使用反向旋转挤出工艺来将层定向在不同的双轴向螺旋方向。 除了纵向方向之外，反向旋转挤出工艺提供在两个不同圆周方向上的取向。 通过将双向或双轴螺旋取向与多个层组合，管状构件的不同层可以被调整为具有期望的机械性能。

公开(公告)号：US06274071B1

公开(公告)日：2001-08-14

申请号：US09142518

申请日：1998-09-08

Applicant: Kari Kirjavainen ,  Jyri Järvenkylä

Inventor： Kari Kirjavainen ,  Jyri Järvenkylä

IPC: B29C4778

CPC classification number: F16L9/121 ,  B29C44/22 ,  B29C45/1704 ,  B29C45/53 ,  B29C47/0016 ,  B29C47/0023 ,  B29C47/003 ,  B29C47/0057 ,  B29C47/02 ,  B29C47/021 ,  B29C47/022 ,  B29C47/065 ,  B29C47/24 ,  B29C47/261 ,  B29C47/265 ,  B29C47/522 ,  B29C47/527 ,  B29C47/705 ,  B29C47/76 ,  B29C47/822 ,  B29C47/825 ,  B29C47/903 ,  B29C47/94 ,  B29C49/20 ,  B29C53/58 ,  B29C55/00 ,  B29C55/24 ,  B29C63/34 ,  B29C70/50 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2071/00 ,  B29K2077/00 ,  B29L2009/00 ,  B29L2023/006 ,  B32B1/08 ,  F16L9/147 ,  F16L9/21 ,  F16L11/15 ,  F16L55/162

Abstract: A method for extruding an extrudable material to form an extruded product, the method including the steps of (a) providing an extruder having a periphery and at least a first stator, an outer rotor and an inner rotor, the first stator being disposed between the outer rotor and the inner rotor to define at least two annular feed gaps disposed one within the other in a radial direction within the periphery of the extruder, a first of the at least two annular feed gaps being defined by the outer rotor and the first stator and being disposed outside of the first stator between the first stator and the outer rotor with the outer rotor being closer to the periphery than the first stator, the first feed gap being the outermost feed gap in the extruder, the extruder including a supply conduit for supplying the material to the first feed gap through the first stator; and (b) supplying the material to the at least two annular feed gaps, with at least a part of the material being supplied through the first stator to the first feed gap, to cause the material to be extruded.

Abstract translation: 一种用于挤出可挤出材料以形成挤出产品的方法，所述方法包括以下步骤：（a）提供具有周边和至少第一定子，外转子和内转子的挤出机，所述第一定子设置在 外转子和内转子以限定在挤出机的周边内沿径向方向一个设置在另一个内的至少两个环形进给间隙，所述至少两个环形进给间隙中的第一个由外转子和第一定子 并且在所述第一定子和所述外转子之间设置在所述第一定子的外侧，所述外转子比所述第一定子更靠近周边，所述第一进料间隙是所述挤出机中的最外部进料间隙，所述挤出机包括用于 通过第一定子将材料供应到第一进给间隙; 以及（b）将所述材料供应到所述至少两个环形进给间隙，其中所述材料的至少一部分通过所述第一定子供应到所述第一进给间隙，以使所述材料被挤出。

公开(公告)号：US06203740B1

公开(公告)日：2001-03-20

申请号：US09155024

申请日：1998-09-17

Applicant: Kari Kirjavainen ,  Jyri Järvenkylä

Inventor： Kari Kirjavainen ,  Jyri Järvenkylä

IPC: D01D520

CPC classification number: F16L9/147 ,  B29C44/22 ,  B29C47/0014 ,  B29C47/0021 ,  B29C47/0023 ,  B29C47/0026 ,  B29C47/0057 ,  B29C47/021 ,  B29C47/022 ,  B29C47/065 ,  B29C47/20 ,  B29C47/24 ,  B29C47/261 ,  B29C47/265 ,  B29C47/522 ,  B29C47/525 ,  B29C47/527 ,  B29C47/705 ,  B29C47/76 ,  B29C47/903 ,  B29C47/94 ,  B29C53/58 ,  B29C55/00 ,  B29C55/24 ,  B29C63/34 ,  B29C70/50 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2071/00 ,  B29K2077/00 ,  B29L2009/00 ,  B32B1/08 ,  F16L9/121 ,  F16L9/21 ,  F16L11/15 ,  F16L55/162

Abstract: An extruder according to the invention comprises at least two annular conical feed gaps (9) one within the other, formed between a rotatable rotor (1) and a stator (4, 5). At least some of the material to be extruded is subjected in the different feed gaps (9) of the extruder alternately to a higher pressure and then to a lower pressure. The rotor (1) or stator (4, 5) between the feed gaps (9) can then be balanced such that the pressure effect provides a hydrodynamic bearing, whereby, when the extruder is used, even at worst a very small force is exerted on die other bearings of the rotor (1) or stator (4, 5). By the method of the invention, a product can also be produced which contains cross-linked and at least partly oriented polyethylene.

Abstract translation: 根据本发明的挤出机包括形成在可旋转转子（1）和定子（4,5）之间的另一个内的至少两个环形锥形进给间隙（9）。 至少一些要挤出的材料在挤出机的不同进料间隙（9）中交替进行到更高的压力，然后到更低的压力。 然后，进给间隙（9）之间的转子（1）或定子（4,5）可以被平衡，使得压力效应提供流体动力轴承，由此，当使用挤出机时，即使在最坏情况下施加非常小的力 在转子（1）或定子（4,5）上的其它轴承上。 通过本发明的方法，还可以生产含有交联和至少部分取向的聚乙烯的产品。