EP2260956B1 - Device for producing helix-shaped corrugated pipe - Google Patents
Device for producing helix-shaped corrugated pipe Download PDFInfo
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- EP2260956B1 EP2260956B1 EP10003639A EP10003639A EP2260956B1 EP 2260956 B1 EP2260956 B1 EP 2260956B1 EP 10003639 A EP10003639 A EP 10003639A EP 10003639 A EP10003639 A EP 10003639A EP 2260956 B1 EP2260956 B1 EP 2260956B1
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- Prior art keywords
- corrugated pipe
- corrugation
- pressure rolls
- corrugated
- pressure rollers
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- 239000002184 metal Substances 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 abstract description 5
- 239000011295 pitch Substances 0.000 description 8
- 230000007423 decrease Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001295925 Gegenes Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
Definitions
- the pressure rollers 2, 3, 4 are for this purpose in a in the FIG. 2 arranged roller frame 9 and can therefore be positioned or replaced as a common structural unit in the device.
- the pressure rollers 2, 3, 4 with respect to the central longitudinal axis 8 in the FIG. 1 shown corrugated tube 1 in the direction of arrow 10 limited axially movable.
- the pressure rollers 2, 3, 4 are each arranged on a pivotable about an axis 11 rocker 12, wherein the pressure rollers 2, 3, 4 are arranged on the axis 23 slidably limited.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Herstellung wendelförmiger Wellrohre, insbesondere aus längsnahtgeschweißten Metallrohren, wobei ein in einem rotationsbeweglich antreibbaren Wellerkopf drehbar gelagerter Wellerwälzring unter Einbringung der Wellung auf der Oberfläche eines glatten Rohres abwälzbar angeordnet ist, wobei die Vorrichtung mehrere in Fertigungsflussrichtung hinter dem Wellerkopf am Umfang des Wellrohres verteilt angeordnete Druckrollen aufweist, die gegen die sich gegenüberliegenden Flanken der Wellung des Wellrohres anlegbar sind, um beim Drehen um das Wellrohr den Abstand zwischen den Flanken zur Veränderung der Steigung zu reduzieren und/oder den Außendurchmessers des Wellrohres zu vergrößern.The invention relates to a device for producing helical corrugated pipes, in particular of longitudinally welded metal tubes, wherein a rotatably driven in a rotatable shaft head rotatably mounted Wellerwälzring is arranged abrollable by introducing the corrugation on the surface of a smooth tube, wherein the device more in the production flow direction behind the corrugated head on the circumference the corrugated pipe has arranged distributed pressure rollers which can be applied against the opposite flanks of the corrugation of the corrugated pipe to reduce the distance between the flanks to change the slope when turning around the corrugated pipe and / or to increase the outer diameter of the corrugated pipe.
In bekannten Vorrichtungen zur Herstellung von Wellrohren werden Formringe und Druckrollen verschiedener Art verwendet. Die
Aus der
Weiterhin ist auch durch die
Ferner ist bei einem Verfahren gemäß der
Die bekannten Vorrichtungen haben jedoch den Nachteil, nur unter großen Schwierigkeiten in derselben Vorrichtung Metallrohre verschiedener Größe und Art mit einer Wellung versehen zu können. Es ist ferner gelegentlich erwünscht, ein mit einer Wellung versehenes Metallrohr derart zu verändern, dass auf einer bestimmten Länge des Metallrohres eine größere Anzahl von Wellen vorhanden ist, um so die Steigung der Wellung zu vermindern, wobei jedoch die Form des Metallrohres aufrechterhalten werden soll.However, the known devices have the disadvantage that they can be provided with a corrugation only with great difficulty in the same device metal tubes of different sizes and types. It is also occasionally desirable to alter a corrugated metal tube such that there is a greater number of corrugations over a given length of the metal tube so as to reduce the pitch of the corrugation while maintaining the shape of the metal tube.
Der Erfindung liegt die Aufgabe zugrunde, eine Möglichkeit zur problemlosen Anpassung an nahezu beliebige Steigungen des einlaufenden Wellrohres zu schaffen.The invention has for its object to provide a way to easily adapt to almost any slope of the incoming corrugated pipe.
Diese Aufgabe wird erfindungsgemäß mit einer Vorrichtung gemäß den Merkmalen des Anspruchs 1 gelöst. Die weitere Ausgestaltung der Erfindung ist den Unteransprüchen zu entnehmen.This object is achieved with a device according to the features of claim 1. The further embodiment of the invention can be found in the dependent claims.
Erfindungsgemäß ist also eine Vorrichtung vorgesehen, bei der die Druckrollen in Bezug auf die Mittellängsachse des Wellrohres begrenzt axial beweglich angeordnet sind. Hierdurch wird in überraschend einfacher Weise eine nahezu unbegrenzte und selbsttätig wirksame Anpassung der Druckrollen an unterschiedliche, zuvor mittels des Wälzringes beziehungsweise der vorhergehenden Druckrolle eingebrachte Steigungen der Wellung ermöglicht, sodass insbesondere die individuelle Einstellung der Positionierung der Druckrollen entfällt. Dabei sind die Druckrollen derart in der Vorrichtung zu einer Baueinheit integriert, dass der Wälzring eine Vorwelleinrichtung bildet, während die Druckrollen die Nachwelleinrichtung bilden. Dadurch, dass nicht etwa der axiale Versatz der am Umfang verteilten Druckrollen die Steigung festlegt, sondern die Art der Vorwellung und die Geometrie der Druckrollen, kann eine Vielzahl unterschiedlicher Wellrohrsteigungen ohne Austausch der Druckrollen realisiert werden. Der Umformungsgrad kann dabei flexibel und in wirtschaftlich ebenso wie technologisch vorteilhafter Weise auf den Wälzring sowie auf die Druckrollen aufgeteilt werden, sodass in der Praxis eine wesentliche Entlastung des Wellkopfes erreicht werden kann. Hierbei wird außerdem eine unerwünschte Torsionsbeanspruchung des Wellrohres weitgehend vermieden.According to the invention, therefore, a device is provided in which the pressure rollers are arranged axially movable relative to the central longitudinal axis of the corrugated tube limited. As a result, a virtually unlimited and automatically effective adjustment of the pressure rollers to different, previously introduced by means of the Wälzringes or the previous pressure roller pitches of the corrugation is possible in a surprisingly simple manner, so that in particular the individual adjustment of the positioning of the pressure rollers deleted. In this case, the pressure rollers are integrated in the device into a structural unit such that the rolling ring forms a pre-shaft device, while the pressure rollers form the post-wave device. The fact that not about the axial offset of the circumferentially distributed pressure rollers determines the slope, but the type of Vorwellung and the geometry of the pressure rollers, a variety of different Wellrohrsteigungen can be realized without replacing the pressure rollers. The degree of deformation can be divided flexibly and economically as well as technologically advantageous manner on the Wälzring and on the pressure rollers, so that in practice a significant relief of the corrugated head can be achieved. In this case, an undesirable torsional stress of the corrugated pipe is also largely avoided.
Die Druckrollen könnten auf einer in Richtung der Mittellängsachse ausgerichteten Achse drehbeweglich und begrenzt axial verschiebbar angeordnet sein. Besonders vorteilhaft ist hingegen eine Ausführungsform der Erfindung, bei welcher die Druckrollen an einer um eine Achse schwenkbeweglichen Schwinge angeordnet sind, die auf der Achse durch einen Anschlag begrenzt verschiebbar angeordnet ist. Hierdurch wird in einfacher Weise eine radiale und axiale Verlagerung der Druckrollen mittels derselben Achse ermöglicht, sodass der Herstellungsaufwand minimiert werden kann. Zugleich kann die Schwinge mittels einer Vorspannkraft in Richtung des Wellrohres vorgespannt sein oder Stellglieder zur radialen Einstellung aufweisen. Weiterhin können in die Schwinge auch Sensoren zur Positionserfassung integriert sein.The pressure rollers could be arranged to be rotatable and limited axially displaceable on an axis aligned in the direction of the central longitudinal axis. In contrast, an embodiment of the invention is particularly advantageous in which the pressure rollers are arranged on a rocker which is pivotable about an axis and which is displaceably arranged on the axis so as to be displaceable by a stop. As a result, a radial and axial displacement of the pressure rollers is made possible by means of the same axis in a simple manner, so that the production cost can be minimized. At the same time, the rocker may be biased by a biasing force in the direction of the corrugated pipe or have actuators for radial adjustment. Furthermore, sensors for position detection can be integrated in the rocker.
Die Druckrollen könnten schräg anstellbar sein, um so beispielsweise durch den Neigungswinkel den Freiraum zwischen den randseitigen Bereichen der Rollen entsprechend dem Neigungswinkel zu verringern und somit eine Verstärkung der Umformung zu erreichen. Besonders vorteilhaft ist hingegen eine Abwandlung der Erfindung, bei welcher die Druckrollen um eine Längsachse im gewünschten Winkel zur Mittellängsachse des Wellrohres beweglich angeordnet sind, wobei die Steigung durch die Geometrie der zu diesem Zweck beispielsweise einstellbaren Druckrolle bestimmt ist.The pressure rollers could be obliquely adjustable, so as to reduce, for example, by the angle of inclination, the free space between the edge regions of the rollers according to the angle of inclination and thus to achieve an amplification of the deformation. In contrast, a modification of the invention is particularly advantageous in which the pressure rollers are movably arranged about a longitudinal axis at the desired angle to the central longitudinal axis of the corrugated tube, wherein the slope is determined by the geometry of the pressure roller, which is adjustable for this purpose, for example.
Eine andere, ebenfalls besonders sinnvolle Ausgestaltung der Erfindung wird dadurch erreicht, dass die Druckrollen an einem gemeinsamen Rollengestell angeordnet sind. Hierdurch können die Druckrollen zur Anpassung an wesentliche Dimensionsänderungen des Wellrohres gemeinsam ausgetauscht werden, sodass unerwünschte Stillstandszeiten der Vorrichtung verringert werden können. Dabei sind vorzugsweise alle Druckrollen an derselben Welle angeordnet.Another, also particularly useful embodiment of the invention is achieved in that the pressure rollers are arranged on a common roller frame. As a result, the pressure rollers can be exchanged to adapt to significant dimensional changes of the corrugated tube together, so that undesirable downtime of the device can be reduced. In this case, all pressure rollers are preferably arranged on the same shaft.
Dabei ist es besonders zweckmäßig, wenn das Rollengestell an der Vorrichtung in seiner axialen und/oder radialen Position einstellbar ist, sodass eine einfache Zentrierung der Druckrollen gegenüber dem Wellrohr ermöglicht wird. Dabei kann zudem zur Anpassung an unterschiedliche, mittels des Wälzringes eingebrachte Steigungen zusätzlich auch eine axiale Positionsänderung des Rollengestells vorgenommen werden.It is particularly expedient if the roller frame on the device in its axial and / or radial position is adjustable, so that a simple centering of the pressure rollers relative to the corrugated pipe is made possible. In addition, an axial position change of the roller frame can also be made to adapt to different, introduced by means of the Wälzringes gradients.
Weiterhin erweist es sich als besonders praxisnah, wenn die zumindest drei Druckrollen gleich verteilt an dem Umfang des Wellrohres angeordnet sind. Hierdurch wird eine gleichmäßige Verformungskraft in das Wellrohr eingeleitet, um so auch hohe Qualitätsanforderungen erfüllen zu können. Selbstverständlich ist die Vorrichtung nicht auf drei Druckrollen beschränkt. Vielmehr lässt sich je nach Einsatzzweck und Rohrdurchmesser mittels einer Mehrzahl von, beispielsweise sechs, Druckrollen eine weitere Qualitätsverbesserung erreichen, indem die je Druckrolle eingebrachten Verformungskräfte reduziert werden.Furthermore, it proves to be particularly practical if the at least three pressure rollers are distributed evenly distributed on the circumference of the corrugated tube. As a result, a uniform deformation force is introduced into the corrugated pipe in order to meet even high quality requirements. Of course, the device is not limited to three pressure rollers. Rather, depending on the application and pipe diameter by means of a plurality of, for example six, pressure rollers can achieve a further quality improvement by reducing the deformation forces introduced per pressure roller.
Eine andere, ebenfalls besonders Erfolg versprechende Ausgestaltung der Erfindung wird dann erreicht, wenn zumindest eine Druckrolle zwei seitliche, radial vorspringende Bereiche aufweist, die jeweils an den sich gegenüberliegenden Flanken der Wellung des Wellrohres anlegbar sind, um so eine durch die Geometrie und den Abstand der Bereiche bestimmte Verformung der Wellung zu erreichen. Der die Bereiche verbindende Zylinderkern ist dabei auch bei hohen Umformgraden stets zu dem Wellrohr beabstandet, um so einer Abflachung der Wellung vorzubeugen. Selbstverständlich können die Bereiche einteilig miteinander verbunden sein oder aber auf einem zylindrischen Körper beispielsweise auch austauschbar fixiert sein. Ferner können die vorspringenden Bereiche mit einer reibungsmindernden Oberflächenbeschaffenheit, insbesondere einer Beschichtung, ausgestattet sein, oder Einrichtungen zur Einstellung vorbestimmter Temperaturen aufweisen.Another, also particularly promising embodiment of the invention is achieved when at least one pressure roller has two lateral, radially projecting portions which can be applied to each of the opposite flanks of the corrugation of the corrugated tube, so as to a by the geometry and the distance Areas to achieve certain deformation of the corrugation. The cylinder core connecting the regions is always spaced even at high degrees of deformation to the corrugated pipe, so as to prevent a flattening of the corrugation. Of course, the areas can be integrally connected to each other or be fixed on a cylindrical body, for example, interchangeable. Further, the projecting portions may be provided with a friction-reducing surface finish, in particular a coating, or have means for setting predetermined temperatures.
Eine andere, ebenfalls besonders Erfolg versprechende Ausgestaltung der Erfindung liegt auch dann vor, wenn zumindest zwei paarweise angeordnete Druckrollen jeweils einen einzigen vorspringenden Bereich aufweisen und die Bereiche jeweils an den sich gegenüberliegenden Flanken der Wellung des Wellrohres anlegbar sind. Aufgrund der hierbei unabhängig voneinander beweglichen Druckrollen wird nahezu jede beliebige Kontur der Wellung, beispielsweise auch mit einer unterschiedlichen Neigung der vorder- und rückseitigen Flanken, realisierbar, sodass eine optimale Anpassung des Wellrohres an die jeweiligen Anforderungen erfüllt werden kann. Der Bereich besteht hierzu beispielsweise aus einem zylindrischen Vorsprung mit einem endseitigen Radius, wobei die Seitenflächen des vorspringenden Bereichs parallel zueinander verlaufen. Die mit dem einzigen vorspringenden Bereich ausgestatteten Druckrollen weisen dabei vorzugsweise eine konvexe Kontur auf.Another, also particularly promising embodiment of the invention is also present when at least two pressure rollers arranged in pairs each have a single projecting area and the areas each at the opposite flanks of the corrugation of the corrugated pipe can be applied. Due to the here independently movable pressure rollers almost any contour of the corrugation, for example, with a different inclination of the front and back flanks, realized, so that an optimal adaptation of the corrugated pipe can be met to the respective requirements. For this purpose, the region consists, for example, of a cylindrical projection with an end-side radius, the side surfaces of the projecting region extending parallel to one another. The pressure rollers equipped with the single projecting area preferably have a convex contour.
Dabei können diese mit dem einzigen vorspringenden Bereich ausgestatteten Druckrollen auf einer gemeinsamen Achse beweglich angeordnet sein. Besonders sinnvoll ist es hingegen, wenn die zwei Druckrollen jeweils um die zueinander und gegenüber der Mittellängsachse des Wellrohres geneigte Achse rotationsbeweglich angeordnet sind, wobei die Achsen derart zueinander geneigt sind, dass eine negative Steigung der Flanken der Wellung mittels der Druckrollen darstellbar ist. Dadurch wird erstmals eine auch als Toruswellung bezeichnete Verformung über die Vertikale hinaus ermöglicht, um so ein Höchstmaß an Flexibilität bei der Herstellung des Wellrohres zu ermöglichen. Die so geschaffene Wellung weist also im Bereich des Wellungsgrundes aufeinander zulaufende Flanken auf, sodass der Abstand der Flanken in radialer Richtung auf die Mittellängsachse abnimmt und im Bereich des Wellungsgrundes sein Minimum hat.In this case, these pressure rollers equipped with the single protruding area can be arranged movably on a common axis. It is particularly useful, however, when the two pressure rollers are rotatably arranged in each case about the mutually and with respect to the central longitudinal axis of the corrugated tube axis, wherein the axes are inclined to each other such that a negative slope of the flanks of the corrugation is represented by the pressure rollers. This allows for the first time also referred to as Toruswellung deformation beyond the vertical addition, so as to allow the highest degree of flexibility in the production of corrugated pipe. The corrugation created in this way therefore has mutually tapering flanks in the region of the corrugation base, so that the spacing of the flanks in the radial direction decreases towards the central longitudinal axis and has its minimum in the region of the corrugation bottom.
Zu diesem Zweck erweist sich eine Weiterbildung als besonders Erfolg versprechend, bei welcher die an den sich gegenüberliegenden Flanken der Wellung des Wellrohres anlegbaren Bereiche derselben Druckrolle oder unterschiedlicher Druckrollen in Richtung ihrer Achse zustellbar angeordnet sind, um so in Abhängigkeit des gewünschten Umformgrades den Abstand der beiden Bereiche, die jeweils an den sich gegenüberliegenden Flanken der Wellung des Wellrohres anlegbar sind, derselben Druckrolle oder benachbarter Druckrollen flexibel einstellen zu können. Insbesondere werden so Aufhärtungen im Wellungsgrund verringert. Die Zustellung ist dabei bei einer relativ zueinander geneigten Anordnung der Bereiche ebenso wie auch bei paralleler Anordnung realisierbar.For this purpose, a further development proves to be particularly successful, in which the regions of the same pressure roller or different pressure rollers which can be applied to the opposite flanks of the corrugated tube are arranged to be deliverable in the direction of their axis, thus depending on the desired degree of deformation the distance between the two Areas that can be applied in each case on the opposite flanks of the corrugation of the corrugated tube, to be able to flexibly adjust the same pressure roller or adjacent pressure rollers. In particular, so hardenings in Wellungsgrund be reduced. The delivery is feasible in a relatively inclined arrangement of the areas as well as in a parallel arrangement.
Dabei erweist es sich als besonders praxisnah, wenn diese Halbrollen mittels einer Einstellmutter in Achsrichtung zustellbar sind, sodass die Zustellung in einfacher Weise manuell durchgeführt werden kann. Zur Festlegung der eingestellten Position dient dabei eine Kontermutter.It proves to be particularly practical if these half rolls are deliverable by means of an adjusting nut in the axial direction, so that the delivery can be carried out manually in a simple manner. To determine the set position serves a lock nut.
Vorzugsweise sind die Geometrie und/oder der Abstand zwischen den Bereichen verschiedener Druckrollen unterschiedlich ausgeführt, um so in Drehrichtung des Rollengestells im Wellrohr einen steigenden Umformgrad sicherzustellen.Preferably, the geometry and / or the distance between the areas of different pressure rollers are designed differently, so as to ensure an increasing degree of deformation in the direction of rotation of the roller frame in the corrugated pipe.
Die Erfindung lässt verschiedene Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips ist eine davon in der Zeichnung dargestellt und wird nachfolgend beschrieben.
Diese zeigt in
- Fig. 1
- eine perspektivische Darstellung von drei gegen ein Wellrohr anliegenden Druckrollen gemäß der Erfindung;
- Fig. 2
- die in der
Figur 1 gezeigten Druckrollen in einem Rollengestell; - Fig. 3
- die unterschiedlichen Rollenprofile der in der
Figur 1 gezeigten Druckrollen in einer Seitenansicht; - Fig. 4
- zwei zueinander geneigte Halbrollen in einer Seitenansicht.
This shows in
- Fig. 1
- a perspective view of three voltage applied to a corrugated tube pressure rollers according to the invention;
- Fig. 2
- the in the
FIG. 1 shown pressure rollers in a roller frame; - Fig. 3
- the different role profiles in the
FIG. 1 shown pressure rollers in a side view; - Fig. 4
- two mutually inclined half-rolls in a side view.
In der
Die Druckrollen 2, 3, 4 sind hierzu in einem in der
In der
Darüber hinaus ist auch eine weitergehende Umformung realisierbar, wie dies anhand der
Claims (14)
- Apparatus for producing helical corrugated pipes (1), in particular from longitudinally seam-welded metal pipes, wherein a corrugation roller ring, which is mounted in a rotatable manner in a corrugation head that can be driven in rotation, is arranged such that it can roll on the surface of a smooth pipe so as to introduce the corrugation (5), wherein the apparatus has a plurality of pressure rolls (2, 3, 4, 13, 14), which are arranged downstream of a corrugation roller ring, as seen in the production flow direction, in a manner distributed on the circumference of the corrugated pipe (1), and can be placed against the opposing flanks (6, 7) of the corrugation (5) in the corrugated pipe (1) in order, while rotating about the corrugated pipe (1), to reduce the distance (a) between the flanks (6, 7) so as to change the pitch and/or the outside diameter of the corrugated pipe (1), characterized in that the pressure rolls (2, 3, 4, 13, 14) are arranged such that they can move axially in a limited manner with respect to the central longitudinal axis (8) of the corrugated pipe (1).
- Apparatus according to Claim 1, characterized in that the pressure rolls (2, 3, 4, 13, 14) are arranged on a rocker (12) that can pivot about an axis (11) and are arranged on the axis (23) such that they can be displaced to a limited extent.
- Apparatus according to Claim 1 or 2, characterized in that the pressure rolls (2, 3, 4) are arranged such that they can move about a longitudinal axis parallel to the central longitudinal axis (8) of the corrugated pipe (1) or inclined with respect thereto.
- Apparatus according to one of the preceding claims, characterized in that the pressure rolls (2, 3, 4) are arranged on a common roll frame (9).
- Apparatus according to Claim 4, characterized in that the roll frame (9) is arranged in an exchangeable manner on the apparatus.
- Apparatus according to Claim 4 or 5, characterized in that the roll frame (9) can be adjusted in its axial and/or radial position on the apparatus.
- Apparatus according to one of the preceding claims, characterized in that the at least three pressure rolls (2, 3, 4, 13, 14) are arranged in a manner distributed uniformly on the circumference of the corrugated pipe (1).
- Apparatus according to one of the preceding claims, characterized in that at least one pressure roll (2, 3, 4) has two lateral, radially protruding regions (2a, 2b, 3a, 3b, 4a, 4b), which can each be placed against the opposing flanks (6, 7) of the corrugation (5) in the corrugated pipe (1).
- Apparatus according to one of the preceding claims, characterized in that at least two pressure rolls (13, 14) that are arranged in pairs each have a single protruding region (17, 18) and the regions (17, 18) can each be placed against the opposing flanks (6, 7) of the corrugation (5) in the corrugated pipe (1).
- Apparatus according to one of the preceding claims, characterized in that two pressure rolls (13, 14) are each arranged such that they can rotate about the axes (15, 16) which are inclined with respect to one another and to the central longitudinal axis (8) of the corrugated pipe.
- Apparatus according to Claim 10, characterized in that the axes (15, 16) are inclined with respect to one another such that a negative pitch (γ) of the flanks (6, 7) of the corrugation (5) can be produced by means of the pressure rolls (13, 14).
- Apparatus according to one of the preceding claims, characterized in that those regions (2a, 2b, 3a, 3b, 4a, 4b, 17, 18) of the same pressure roll (2, 3, 4, 13, 14) or of different pressure rolls (2, 3, 4, 13, 14) which can be placed against the opposing flanks (6, 7) of the corrugation (5) in the corrugated pipe (1) are arranged such that they can be advanced in the direction of their axes (15, 16).
- Apparatus according to one of the preceding claims, characterized in that the regions (2a, 2b, 3a, 3b, 4a, 4b, 17, 18) can be advanced in the axial direction by means of an adjustment nut (21).
- Apparatus according to one of the preceding claims, characterized in that the geometry and/or the distance between the regions (2a, 2b, 3a, 3b, 4a, 4b, 17, 18) of different pressure rolls (2, 3, 4, 13, 14) is configured differently.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009024847A DE102009024847B4 (en) | 2009-06-09 | 2009-06-09 | Device for producing helical corrugated pipes |
Publications (2)
Publication Number | Publication Date |
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EP2260956A1 EP2260956A1 (en) | 2010-12-15 |
EP2260956B1 true EP2260956B1 (en) | 2011-12-28 |
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EP10003639A Active EP2260956B1 (en) | 2009-06-09 | 2010-04-01 | Device for producing helix-shaped corrugated pipe |
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EP (1) | EP2260956B1 (en) |
AT (1) | ATE538884T1 (en) |
DE (1) | DE102009024847B4 (en) |
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CN116871375B (en) * | 2023-09-06 | 2023-11-28 | 杭州万全金属软管有限公司 | Stainless steel corrugated pipe machining device |
CN118023366A (en) * | 2024-04-11 | 2024-05-14 | 浙江博美特能源设备有限公司 | Metal bellows continuous forming device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3128821A (en) * | 1964-04-14 | Corrugator for metal tubing | ||
DE1652990B1 (en) | 1961-05-17 | 1969-10-02 | Kabel Metallwerke Ghh | Device for continuous waves of thin-walled, in particular longitudinally welded, smooth tubes |
US3568489A (en) * | 1967-08-14 | 1971-03-09 | Susumu Tobita | Methods and apparatus for producing corrugated metal tubes |
DE6609600U (en) | 1967-11-10 | 1972-07-27 | Calumet & Hecla | DEVICE FOR THE MANUFACTURE OF CORRUGATED METAL HOSES. |
DE2049235C3 (en) | 1970-10-07 | 1979-09-27 | Kabel- Und Metallwerke Gutehoffnungshuette Ag, 3000 Hannover | Device for the production of helically corrugated tubes |
JPS60102231A (en) * | 1983-11-07 | 1985-06-06 | Yutaka Katayama | Corrugating device of tube |
DE4137275A1 (en) | 1991-11-13 | 1993-05-19 | Kabelmetal Electro Gmbh | METHOD FOR THE CONTINUOUS PRODUCTION OF SCREW LINE OR RING SHAPED METAL PIPES |
DE10126399A1 (en) * | 2001-05-31 | 2002-12-05 | Nexans France S A | Device for the continuous production of a helically corrugated metal tube |
-
2009
- 2009-06-09 DE DE102009024847A patent/DE102009024847B4/en not_active Expired - Fee Related
-
2010
- 2010-04-01 EP EP10003639A patent/EP2260956B1/en active Active
- 2010-04-01 AT AT10003639T patent/ATE538884T1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105606290A (en) * | 2015-12-23 | 2016-05-25 | 太原航空仪表有限公司 | High-performance aero-engine pressure sensitive element and test method thereof |
CN105606290B (en) * | 2015-12-23 | 2018-09-21 | 太原航空仪表有限公司 | High Performance Aeroengine pressure-sensing device and its test method |
Also Published As
Publication number | Publication date |
---|---|
DE102009024847B4 (en) | 2012-01-26 |
ATE538884T1 (en) | 2012-01-15 |
EP2260956A1 (en) | 2010-12-15 |
DE102009024847A1 (en) | 2010-12-23 |
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