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    Extruder head for extruding an outer tube or sheath about an inner tube or cable
    3.
    发明授权
    Extruder head for extruding an outer tube or sheath about an inner tube or cable 失效
    用于挤出外管或护套围绕内管或电缆的挤出机头

    公开(公告)号：US3994644A

    公开(公告)日：1976-11-30

    申请号：US529657

    申请日：1974-12-04

    申请人： Wilhelm Hegler ,  Ralph-Peter Hegler

    发明人： Wilhelm Hegler ,  Ralph-Peter Hegler

    IPC分类号： B29C49/00 ,  B29B7/00 ,  B29B11/10 ,  B29C47/00 ,  B29C47/02 ,  B29C47/06 ,  B29C47/26 ,  B29C47/28 ,  B29C49/04 ,  B29C49/22 ,  B29C49/30 ,  B29C49/38 ,  B29C53/30 ,  B29C65/00 ,  B29C69/00 ,  B29D23/00 ,  B29D23/18 ,  B29F3/10

    CPC分类号： B29C47/28 ,  B29C47/0033 ,  B29C47/005 ,  B29C47/065 ,  B29C47/126 ,  B29C47/225 ,  B29C47/0016 ,  B29C47/0023 ,  B29L2016/00

    摘要： An improvement in an extruder head for extruding an outer tubular extrusion or sheath about an inner tube or cable which extrusion head has a means for passing an inner tube or cable through the extruder head which extruder head also terminates in a generally annular passage disposed about said inner tube or cable, the improvement residing in means for feeding molten material through an introducing passage at an angle to said extruder head and then into said annular passage, dividing means in said introducing passage for dividing said molten material into a stream of U-shaped cross-section, said dividing means including a leading parting edge; a method of producing a carrier ring which carries the dividing means by passing a machining tool into the introducing passage and passing the tool along paths having progressively larger U-shaped loops.

    摘要翻译： 用于挤压挤压机头部的挤压机头部的改进，该挤压机头部围绕内管或缆线挤出外管状挤出物或护套，该挤压头具有使内管或缆索通过挤出机头部的装置，该挤出机头部也终止于围绕所述 内管或电缆，其改进位于用于通过与所述挤出机头成角度的引入通道供入熔融材料然后进入所述环形通道的装置中，所述引入通道中的分隔装置将所述熔融材料分成U形流 横截面，所述分割装置包括前导分割边缘; 一种制造承载环的方法，该承载环通过将加工工具通过所述引入通道并沿着具有逐渐变大的U形环的路径使所述工具通过所述分割装置。

    Apparatus for producing plastic drain pipes
    4.
    发明授权
    Apparatus for producing plastic drain pipes 失效
    塑料排水管生产设备

    公开(公告)号：US4184831A

    公开(公告)日：1980-01-22

    申请号：US694414

    申请日：1976-06-09

    申请人： Wilhelm Hegler ,  Ralph-Peter Hegler

    发明人： Wilhelm Hegler ,  Ralph-Peter Hegler

    IPC分类号： B26F1/00 ,  B29C47/00 ,  B29C49/00 ,  E02B11/00 ,  B29D23/04

    CPC分类号： E02B11/005 ,  B26F1/0038 ,  B29C49/0021 ,  B29C2791/006 ,  B29C2793/0063 ,  B29C47/0023 ,  B29C47/003 ,  B29C47/0033 ,  B29C47/0066 ,  B29L2023/18 ,  B29L2023/183

    摘要： A synthetic plastic drain pipe comprising a continuous pipe of plastic material having transverse, angular or helical corrugations, said pipe having openings for the entry of water, said openings being disposed in said pipe at regular repeating intervals between corrugated lengths of pipe at least at every 20 cm, preferably 30-50 cm, said pipe being free of any opening between said intervals; an apparatus for producing such a synthetic drain pipe, particularly a pipe having distinct portions of general cross section wherein on said portions there are longitudinally running grooves through which there are disposed openings, said apparatus comprising an extruder having an extrusion head, said extrusion head having a generally annular opening defined by a generally circular die disposed about a generally circular mandrel, said apparatus having in general axial alignment with said opening a pair of endless traveling means in the form of a mold train, each of which traveling means carries cooperating mold halves which are in facing relationship generally axial of said opening and joined to define a mold cavity, means for moving said traveling means, means for exerting a partial vacuum on the contents of said mold cavity, some of said molds having grooves to form transversely corrugated pipe lengths of synthetic plastic extruded through said opening, and some of said mold halves having longitudinally running grooves which form longitudinally running grooves in a plastic pipe extruded through said opening.

    摘要翻译： 一种合成塑料排水管，包括具有横向，有角或螺旋形波纹的塑料材料的连续管道，所述管道具有用于进入水的开口，所述开口以至少每个管道的波纹管段之间的规则重复间隔设置在所述管道中 20厘米，优选30-50厘米，所述管道在所述间隔之间没有任何开口; 一种用于生产这种合成排水管的装置，特别是具有截面不同部分的管，其中在所述部分上具有纵向延伸的槽，通过该槽设置开口，所述装置包括具有挤出头的挤出机，所述挤出头具有 一个大致环形的开口，由通常圆形的模具限定，围绕一个大致圆形的心轴设置，所述装置通常与所述开口轴向对准一对模具列的形式的一对环形行进装置，每个行程装置承载配合的半模 它们处于所述开口的大致轴向的面对关系并且被连接以限定模腔，用于移动所述行进装置的装置，用于对所述模腔的内容物施加部分真空的装置，一些所述模具具有凹槽以形成横向波纹管 通过所述开口挤出的合成塑料的长度以及所述半模中的一些 具有在通过所述开口挤出的塑料管中形成纵向运行的槽的纵向运行槽。

    Plastic drain pipe and apparatus for producing the same
    7.
    发明授权
    Plastic drain pipe and apparatus for producing the same 失效
    塑料排水管及其制造装置

    公开(公告)号：US4006599A

    公开(公告)日：1977-02-08

    申请号：US555325

    申请日：1975-03-04

    申请人： Wilhelm Hegler ,  Ralph-Peter Hegler

    发明人： Wilhelm Hegler ,  Ralph-Peter Hegler

    IPC分类号： F16L11/11 ,  B26F1/00 ,  B29C47/00 ,  B29C49/00 ,  B29C53/00 ,  B29C53/30 ,  B29C59/04 ,  B29C65/00 ,  B29C69/00 ,  B29D23/00 ,  B29D23/18 ,  B29L23/00 ,  E02B11/00 ,  F16L1/00

    CPC分类号： E02B11/005 ,  B26F1/0038 ,  B26F1/0053 ,  B29C49/0021 ,  B29C2791/006 ,  B29L2023/003 ,  B29L2023/18 ,  B29L2023/183

    摘要： A synthetic plastic drain pipe comprising a continuous pipe of plastic material having transverse, angular or helical corrugations, said pipe having openings for the entry of water, said openings being disposed in said pipe at regular repeating intervals between corrugated lengths of pipe at least at every 20 cm, preferably 30-50 cm, said pipe being free of any opening between said intervals; an apparatus for producing such a synthetic drain pipe, particularly a pipe having distinct portions of general cross section wherein on said portions there are longitudinally running grooves through which there are disposed openings, said apparatus comprising an extruder having an extrusion head, said extrusion head having a generally annular opening defined by a generally circular die disposed about a generally circular mandrel, said apparatus having in general axial alignment with said opening a pair of endless traveling means in the form of a mold train, each of which traveling means carries cooperating mold halves which are in facing relationship generally axial of said openings and joined to define a mold cavity, means for moving said traveling means, means for exerting a partial vacuum on the contents of said mold cavity, some of said molds having grooves to form transversely corrugated pipe lengths of synthetic plastic extruded through said opening, and some of said mold halves having longitudinally running grooves which form longitudinally running grooves in a plastic pipe extruded through said opening.

    摘要翻译： 一种合成塑料排水管，包括具有横向，有角或螺旋形波纹的塑料材料的连续管道，所述管道具有用于进入水的开口，所述开口以至少每个管道的波纹管段之间的规则重复间隔设置在所述管道中 20厘米，优选30-50厘米，所述管道在所述间隔之间没有任何开口; 一种用于生产这种合成排水管的装置，特别是具有截面不同部分的管，其中在所述部分上具有纵向延伸的槽，通过该槽设置开口，所述装置包括具有挤出头的挤出机，所述挤出头具有 一个大致环形的开口，由通常圆形的模具限定，围绕一个大致圆形的心轴设置，所述装置通常与所述开口轴向对准一对模具列的形式的一对环形行进装置，每个行程装置承载配合的半模 它们处于所述开口的大致轴向的相对关系并且被连接以限定模腔，用于移动所述行进装置的装置，用于对所述模腔的内容物施加部分真空的装置，所述模具中的一些具有凹槽以形成横向波纹管 通过所述开口挤出的合成塑料的长度以及所述半模中的一些 具有在通过所述开口挤出的塑料管中形成纵向运行的槽的纵向运行槽。

    Method of producing double-walled synthetic plastics tubes having an outer wall with annular or helical corrugations
    8.
    发明授权
    Method of producing double-walled synthetic plastics tubes having an outer wall with annular or helical corrugations 失效
    制造具有环形或螺旋状波纹的外壁的双壁合成塑料管的方法

    公开(公告)号：US3996323A

    公开(公告)日：1976-12-07

    申请号：US554946

    申请日：1975-03-03

    申请人： Wilhelm Hegler ,  Ralph-Peter Hegler

    发明人： Wilhelm Hegler ,  Ralph-Peter Hegler

    IPC分类号： B29B11/10 ,  B29C47/00 ,  B29C47/04 ,  B29C47/06 ,  B29C47/26 ,  B29C47/28 ,  B29C47/90 ,  B29C47/92 ,  B29C49/00 ,  B29C49/04 ,  B29C49/30 ,  B29C49/38 ,  B29C49/48 ,  B29C49/58 ,  B29C53/30 ,  B29C59/04 ,  B29C65/00 ,  B29D23/18 ,  B29L23/18 ,  F16L11/118 ,  G01D9/00 ,  B29C17/07

    CPC分类号： F16L11/118 ,  B29C47/0023 ,  B29C47/0033 ,  B29C47/0052 ,  B29C47/065 ,  B29C47/126 ,  B29C47/28 ,  B29C47/902 ,  B29C47/92 ,  B29C49/0021 ,  G01D9/00 ,  B29C2791/006 ,  B29C2947/92019 ,  B29C2947/92209 ,  B29C2947/92409 ,  B29C2947/92514 ,  B29C2947/92704 ,  B29C2947/92904 ,  B29C47/904 ,  B29L2016/00 ,  B29L2023/186 ,  B29L2024/003 ,  B29L2031/601

    摘要： An improvement in the process of producing a double-walled synthetic plastic tube having a concentric outer tube and an inner tube wherein an outer tube of molten synthetic plastic is extruded from an annular die and passing to a mold cavity formed by a divided mold having two cooperating endless recirculating trains of mold halves which close to complete the mold cavity and an inner tube of molten synthetic plastic is extruded from a die orifice located in the interior of said mold which improvement comprises introducing a first gas into the space between said inner tube and said outer tube before said synthetic plastic has fully hardened, said gas being at a pressure above atmospheric and at a temperature at or above the softening point of said synthetic plastic and permitting said outer inner tubes to cool; an apparatus for carrying out the process comprising an extruder having a first die disposed over a first mandrel to define a first annular space through which molten synthetic plastic can flow en route to a mold cavity of the type described, a second annular die concentric to a first mandrel and a second mandrel concentric to said first die, said second mandrel and said second die disposed to define a second annular space through which additional molten synthetic plastic can flow wherein a first gas channel entering the region between the first annular space and the second annular space is provided to supply fluid gas between the outer wall of the inner tube and the inner wall of the outer tube as the tubes emerge from the respective dies.

    摘要翻译： 制造具有同心外管和内管的双壁合成塑料管的制造方法的改进，其中熔融合成塑料的外管从环形模具挤出并且通过由具有两个 配合的半模的无限循环列车接近完成模具腔，并且熔融合成塑料的内管从位于所述模具内部的模孔挤出，其改进包括将第一气体引入到所述内管和 所述外管在所述合成塑料完全硬化之前，所述气体处于高于大气压并且处于或高于所述合成塑料的软化点的温度，并允许所述外部内管冷却; 用于执行该方法的装置包括挤出机，该挤出机具有设置在第一心轴上的第一模具，以限定第一环形空间，熔融的合成塑料可以通过该第一环形空间流动到所述类型的模腔中，与第一模具同心的第二环形模具 第一心轴和与所述第一模具同心的第二心轴，所述第二心轴和所述第二模具设置成限定另外的熔融合成塑料可以流过的第二环形空间，其中进入第一环形空间和第二心轴之间的区域的第一气体通道 环形空间被设置成当管从相应的模具出来时，在内管的外壁和外管的内壁之间提供流体气体。