公开(公告)号：US5525289A

公开(公告)日：1996-06-11

申请号：US380689

申请日：1995-01-30

申请人： Manfred A. A. Lupke ,  Stefan A. Lupke

发明人： Manfred A. A. Lupke ,  Stefan A. Lupke

IPC分类号： B29C35/16 ,  B29C47/12 ,  B29C47/88 ,  B29C49/04 ,  B29C49/64

CPC分类号： B29C47/882 ,  B29C47/0023 ,  B29C47/0033 ,  B29C47/126

摘要： In a method of forming a hollow product in a molding apparatus having an upstream and a downsteam end a parison of thermoplastic material is extruded in a molten state from a heated extruder at the upstream end and moved through a product shaping region towards the downstream end of the apparatus. The material is cooled by passing a cooling medium internally of the product from the downstream end towards the upstream end of the apparatus.

摘要翻译： 在具有上游和下游端的成型设备中形成中空产品的方法中，热塑性材料的型坯在熔融状态下从上游端的加热挤出机挤出，并通过产品成形区域向下游端 该装置。 通过将产品内部的冷却介质从装置的下游端向上游端通过冷却材料来冷却。

公开(公告)号：US5296188A

公开(公告)日：1994-03-22

申请号：US942774

申请日：1992-09-10

申请人： Manfred A. A. Lupke

发明人： Manfred A. A. Lupke

IPC分类号： B29C47/12 ,  B29C47/88 ,  B29C47/90

CPC分类号： B29C47/908 ,  B29C47/0023 ,  B29C47/0033 ,  B29C47/126 ,  B29C47/8865 ,  B29C47/902 ,  B29C2791/006 ,  B29C47/003 ,  B29C47/904 ,  B29L2009/00 ,  B29L2016/00 ,  B29L2023/18 ,  B29L2031/601

摘要： The invention concerns a cooling plug for sizing the interior surface of thermoplastic extruded pipe. Vacuum and/or pneumatic pressure is applied at the surface of the plug. The pneumatic pressure may cause the inner wall to balloon outwardly to form bells within a mold or within an outer wall, to fit into corrugations of an outer corrugated tube, etc. The vacuum may be used to pull the inner wall back to the surface of the plug after application of pneumatic pressure.

摘要翻译： 本发明涉及一种用于调整热塑性挤出管的内表面的冷却塞。 在插头的表面施加真空和/或气动压力。 气动压力可能导致内壁向外气球以在模具内或外壁内形成钟形，以适应外部波纹管的波纹等。真空可用于将内壁拉回至 插头应用气动压力后。

公开(公告)号：US4995800A

公开(公告)日：1991-02-26

申请号：US415586

申请日：1989-10-02

申请人： Manfred A. A. Lupke

发明人： Manfred A. A. Lupke

IPC分类号： B29C47/06 ,  B29C47/22

CPC分类号： B29C47/0023 ,  B29C47/005 ,  B29C47/065 ,  B29C47/225

摘要： The invention concerns an extrusion die assembly, especially for use where accurate centering of a mandrel is important. The assembly includes the first member having a mandrel projecting therefrom and an extrusion passage generally in line with the mandrel, which extrusion passsage is, at one end, of cross-section to conform with a passage carrying extrudate for the extrusion head and which merges, over its length, into an extrusion passage at the other end, at least partially surrounding the root of the mandrel. This member is adjustably located in an outer member, which together with the mandrel defines an extrusion nozzle. Since the extrusion passage passes through the first member, it is possible to provide positioning means for the first member and the mandrel without interfering with extrudate's flow.

公开(公告)号：US4731138A

公开(公告)日：1988-03-15

申请号：US41538

申请日：1987-04-23

申请人： Manfred A. A. Lupke

发明人： Manfred A. A. Lupke

IPC分类号： B29C69/02 ,  B29C31/00 ,  B29C47/06 ,  B29C53/58 ,  B29C53/82 ,  B29C53/84 ,  B29C63/32 ,  B29D23/00 ,  B29D23/18 ,  B29D24/00 ,  B29L23/18 ,  F16L55/00 ,  B65H81/00

CPC分类号： B29D23/18 ,  B29C53/581 ,  B29C53/586 ,  B29C53/822 ,  B29C53/845 ,  B29C63/32 ,  Y10T156/1025

摘要： An apparatus for producing helically wound double-walled fused thermoplastic pipes, corrugated outside and smooth inside. The apparatus includes extruder means forming two bands of a thermoplastic material, a former shaping the corrugated configuration of and helically winding the first extruded band, a cooled element pressing the second band to the inside of the corrugations and having passages communicating with the second band and with a vacuum means.

摘要翻译： 一种用于生产螺旋缠绕的双壁熔融热塑性管的设备，波纹状外部和光滑的内部。 该装置包括形成热塑性材料的两个带的挤出机装置，成形为波纹结构并螺旋缠绕第一挤出带的成形装置，将第二带压到波纹内部的冷却元件，并具有与第二带连通的通道， 用真空手段。

公开(公告)号：US4689174A

公开(公告)日：1987-08-25

申请号：US916844

申请日：1986-10-08

申请人： Manfred A. A. Lupke

发明人： Manfred A. A. Lupke

IPC分类号： B29D23/18 ,  B29C47/00 ,  B29C53/78 ,  B29D23/00 ,  B29D24/00 ,  B31F1/20 ,  B31F1/28

CPC分类号： B29D23/001 ,  B29C53/785 ,  Y10S425/016 ,  Y10T156/1016 ,  Y10T156/1025

摘要： A system is disclosed for the production of double-walled helically wound thermoplastic pipe. The apparatus includes an endless former (10) of the axially advancing and rotating type for forming a band of thermoplastic material (24) into a corrugated outer wall (26). An internal extruding device (28) extends along the core of the former and extrudes a second band (34) of thermoplastic material onto the interior of the outer wall. A cold shoe (36) presses the inner wall against the outer wall to form a smooth inner wall (42) of the double-walled pipe. It is also possible to provide for the insertion of a reinforcing profile in the corrugations of the outer wall.

摘要翻译： 公开了用于生产双壁螺旋缠绕热塑管的系统。 该装置包括用于将热塑性材料带（24）形成波纹状外壁（26）的轴向前进和旋转型的环形成形器（10）。 内部挤压装置（28）沿着前者的芯部延伸，并将第二热塑性材料带（34）挤压到外壁的内部。 冷靴（36）将内壁压靠在外壁上以形成双壁管的平滑内壁（42）。 还可以提供在外壁的波纹中插入增强轮廓。

公开(公告)号：US4325685A

公开(公告)日：1982-04-20

申请号：US186625

申请日：1980-09-12

申请人： Manfred A. A. Lupke ,  Gerd P. H. Lupke

发明人： Manfred A. A. Lupke ,  Gerd P. H. Lupke

IPC分类号： B29C65/00 ,  B29B11/10 ,  B29C33/00 ,  B29C33/36 ,  B29C49/00 ,  B29C49/04 ,  B29C49/30 ,  B29C49/38 ,  B29C49/42 ,  B29C49/48 ,  B29C49/56 ,  B29C17/07

CPC分类号： B29C49/0021 ,  B29C33/36 ,  B29C33/0022 ,  B29L2023/18

摘要： In an apparatus for producing thermoplastic tubing, the apparatus being of the type comprising a pair of complementary mold assemblies providing recirculating mold units which cooperate in pairs along a forward run to define a mold cavity, each mold unit comprises a transversely displaceable die member providing a plurality of half molds which can be selectively displaced to an operative position. The apparatus includes selectively operable cam means positioned along the return runs of the mold units for selectively engaging the die members. The half molds in each die member are configured differently, there being at least one with a smooth inner surface and at least one with a corrugated inner surface.

摘要翻译： 在一种用于生产热塑性管材的装置中，该装置是包括一对互补模具组件的类型，该组互补的模具组件提供循环模具单元，这些模具单元成对地沿前进方向协作以限定模腔，每个模具单元包括横向可移位的模具构件， 多个半模可以选择性地移动到操作位置。 该装置包括沿着模具单元的返回行程定位的选择性地操作的凸轮装置，用于选择性地接合模具构件。 每个模具构件中的半模具的构造不同，存在至少一个具有平滑的内表面和至少一个具有波纹内表面的模具。

公开(公告)号：US4226580A

公开(公告)日：1980-10-07

申请号：US868702

申请日：1978-01-11

申请人： Gerd P. H. Lupke ,  Manfred A. A. Lupke

发明人： Gerd P. H. Lupke ,  Manfred A. A. Lupke

IPC分类号： B29C69/00 ,  B29B7/00 ,  B29C33/02 ,  B29C33/38 ,  B29C33/46 ,  B29C33/76 ,  B29C35/02 ,  B29C35/16 ,  B29C47/00 ,  B29C47/06 ,  B29C47/10 ,  B29C47/20 ,  B29C47/86 ,  B29C49/00 ,  B29C49/48 ,  B29C53/30 ,  B29C63/34 ,  B29C65/00 ,  B29D23/00 ,  B29D23/18 ,  B29C17/07 ,  B29D23/04

CPC分类号： B29C49/48 ,  B29C47/0052 ,  B29C47/065 ,  B29C47/126 ,  B29C49/0021 ,  B29C63/341 ,  B29C2035/0211 ,  B29C2035/1616 ,  B29C2035/1658 ,  B29C2791/006 ,  B29C2791/007 ,  B29C33/02 ,  B29C33/3814 ,  B29C33/46 ,  B29C33/76 ,  B29C47/0023 ,  B29C47/0033 ,  B29K2105/04 ,  B29L2016/00 ,  B29L2023/186 ,  B29L2031/14

摘要： An apparatus for producing multi-walled thermoplastic tubing having a corrugated wall and a substantially smooth inner wall secured to the corrugated wall, there is incorporated two sets of endless flexible belts each of which is entrained around rotatable end rolls, the outer runs of the belts of one of the sets thereof alternating with the outer runs of the other of the sets thereof, with these outer runs of the various belts serving to urge the inner wall against the corrugations of the corrugated wall while the thermoplastic material of the walls is soft thereby to secure the walls together, and with an electrically energizeable heating coil being provided for softening the thermoplastic material of the corrugated wall to ensure satisfactory securement between the walls. The apparatus also incorporates a suction chamber, a cooling chamber forwardly of the suction chamber, and a pressure chamber forwardly of the cooling chamber, the suction chamber communicating with passages in the mold blocks which constitute a tubular mold tunnel in which the tubing is formed to urge the appropriate wall against the tubular mold tunnel thereby to form the corrugated wall, cooling air flowing from the cooling chamber through these passages and exhausting through spring-loaded check valves to cool the mold blocks, and pressurized air flowing from the pressure chamber through the passages to eject the finished tubing from the tubular mold tunnel at the forward end thereof, during which the check valves are maintained closed.

摘要翻译： 一种用于生产具有波纹壁和固定到波纹壁的基本平滑的内壁的多壁热塑性管的装置，其中结合有两组环形柔性带，每组环形柔性带被夹带在可旋转端辊周围，带的外侧 其中一组与其另一组的外部行程交替，其中各种带的这些外部行程用于在壁的热塑性材料为软的同时推动内壁抵靠波纹壁的波纹，从而 以将壁固定在一起，并且具有用于软化波纹壁的热塑性材料的电可加热加热线圈，以确保壁之间的令人满意的固定。 该装置还包括吸入室，吸入室前方的冷却室和冷却室前方的压力室，吸入室与模块中的通道连通，该模块中构成管道形成的管状模具通道 推动适当的壁抵靠管状模具通道，从而形成波纹壁，冷却空气从冷却室流过这些通道并通过弹簧加载的止回阀排出以冷却模具块，以及从压力室流过的加压空气通过 通道在其前端从管状模具通道中弹出成品管道，在此期间止回阀保持关闭。

公开(公告)号：US4218164A

公开(公告)日：1980-08-19

申请号：US002757

申请日：1979-01-11

申请人： Gerd P. H. Lupke ,  Manfred A. A. Lupke

发明人： Gerd P. H. Lupke ,  Manfred A. A. Lupke

IPC分类号： B26F1/00 ,  B26D3/16 ,  B29C17/10

CPC分类号： B26F1/0076 ,  Y10T409/303752 ,  Y10T409/30644 ,  Y10T83/0596 ,  Y10T83/323 ,  Y10T83/4769

摘要： Corrugated tubing is advanced along its axial path by rotatably driven lead screw members the screw threading of which is in meshing engagement with the corrugations of the tubing, the lead screw members being in pairs with the screw threading of the members of each pair being of opposite hand and the lead screw members each pair being rotated in opposite directions. The lead screw members of each pair present outwardly directed cutters which are synchronized substantially simultaneously to intersect the tubing thereby, in perforating the tubing, to restrain the tubing against rotation thereof about the axial path. A slide member is preferably slidably and non-rotatably mounted by a splined connection on each lead screw member with the associated cutter or cutters mounted on the slide member for rotation therewith during operative rotation of the lead screw member, the slide member being slidably moved along the lead screw member by the advancing tubing during intersection of the tubing by the associated cutter or cutters with the slide member and associated cutter or cutters being returned to the initial position thereof between intersections of the tubing by the cutter or cutters. There is also disclosed a method of producing the lead screw members with the outwardly projecting cutters mounted thereon.

摘要翻译： 波纹管沿着其轴向通过可旋转地驱动的丝杠构件推进，该丝杠构件的螺纹螺纹与管道的波纹啮合，导螺杆构件与每对构件的螺纹螺纹成对成对 并且每对的导螺杆构件沿相反的方向旋转。 每对的导螺杆构件存在向外定向的切割器，其基本上同时地同步地与管道相交，从而在穿孔管道时限制管道围绕轴向路径旋转。 滑动构件优选地通过花键连接可滑动地且不可旋转地安装在每个导螺杆构件上，其中相关联的切割器或切割器安装在滑动构件上以在丝杠构件的操作旋转期间与其一起旋转，滑动构件可滑动地沿着 通过相关联的切割器或切割器与滑动构件和相关联的切割器或切割器在管道相交期间的前进管道的导螺杆构件通过切割器或切割器在管道的交叉点之间返回到其初始位置。 还公开了一种用于在其上安装有向外突出的切割器的丝杠构件的制造方法。

公开(公告)号：US4136143A

公开(公告)日：1979-01-23

申请号：US770664

申请日：1977-02-22

申请人： Gerd P. H. Lupke ,  Manfred A. A. Lupke

发明人： Gerd P. H. Lupke ,  Manfred A. A. Lupke

IPC分类号： B29C47/00 ,  B29C47/88 ,  B29C49/00 ,  B29D23/03

CPC分类号： B29C49/0021 ,  B29C47/0023 ,  B29C47/0033 ,  B29C47/882 ,  B29C47/0038 ,  B29K2023/12 ,  B29K2027/06 ,  B29L2023/18

摘要： In order, in the molding of corrugated thermoplastic tubing, to overcome the disadvantage that pressurized air which is supplied to a zone within the tube of thermoplastic material as it is extruded from an extrusion head into the entrance of a tubular mold tunnel may tend to cause rupturing of the tube at the area immediately adjacent to the extrusion head where the tube is unsupported by the wall of the tubular mold tunnel the pressurized gas is supplied at a low pressure to a first zone within the tube of thermoplastic material to support the tube against the wall of the tunnel, and pressurized gas at a higher pressure is supplied to a second zone within the tube to urge the tube outwardly into the corrugations of the tubular mold tunnel. A first sealing arrangement separates the first zone from the second zone which is disposed downstream of the first zone, and a second sealing arrangement defines the downstream end of the second zone.

公开(公告)号：US3957386A

公开(公告)日：1976-05-18

申请号：US550458

申请日：1975-02-18

申请人： Manfred A. A. Lupke

发明人： Manfred A. A. Lupke

IPC分类号： B23D21/00 ,  B23C3/34 ,  B23D45/10 ,  B23D45/12 ,  B23D61/02 ,  B26F1/00 ,  B29C17/10 ,  B23C1/14 ,  B26D3/06

CPC分类号： B26F1/0023 ,  B23D45/105 ,  B23D45/122 ,  B23D61/02 ,  B26F1/003 ,  Y10T408/3833 ,  Y10T409/307784 ,  Y10T409/308792 ,  Y10T83/0596 ,  Y10T83/4455 ,  Y10T83/4493 ,  Y10T83/4645

摘要： A machine for perforating corrugated tubing at accurately spaced locations includes a double chain conveyor which positively engages the tubing and is driven intermittently to advance the tubing in steps of equal length. Upon completion of each step a pair of clamping members are actuated to engage the tubing, the clamping faces of the members being shaped so as to locate the tubing positively while it is stationary. When the tubing is so located, accurately positioned sets of cutters are brought into operation so as to cut slots or holes in the tubing at the desired locations. Upon completion of the cutting stroke, the clamping members are automatically released and the conveyor advances the tubing by another step. The sequence of operations in each cycle is controlled by limit switches responsive to the positions of the conveyor, the clamping means and the cutters. The cutters may be rotary saws or rotary drills.

摘要翻译： 用于在精确间隔的位置穿孔波纹管的机器包括双链输送机，该双链输送机主动地接合管道并间歇地驱动以使管道以相等长度的步长推进。 在每个步骤完成之后，一对夹紧构件被致动以接合管道，构件的夹紧面被成形为在固定的同时正确地定位管道。 当管道如此定位时，精确定位的刀具组被运行，以在期望的位置切割管道中的槽或孔。 在完成切割行程时，夹紧构件自动释放，并且输送机将管道推进另一步骤。 每个循环中的操作顺序由响应于输送机，夹紧装置和切割器的位置的限位开关控制。 切割机可以是旋转锯或旋转钻。