EP3423209B1 - Method for manufacturing a gas or liquids tank having a drum-type peripheral wall - Google Patents

Method for manufacturing a gas or liquids tank having a drum-type peripheral wall Download PDF

Info

Publication number
EP3423209B1
EP3423209B1 EP16816213.9A EP16816213A EP3423209B1 EP 3423209 B1 EP3423209 B1 EP 3423209B1 EP 16816213 A EP16816213 A EP 16816213A EP 3423209 B1 EP3423209 B1 EP 3423209B1
Authority
EP
European Patent Office
Prior art keywords
profiling
workpiece
roller
internal
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16816213.9A
Other languages
German (de)
French (fr)
Other versions
EP3423209A1 (en
Inventor
Benedikt Nillies
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leifeld Metal Spinning GmbH
Original Assignee
Leifeld Metal Spinning GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leifeld Metal Spinning GmbH filed Critical Leifeld Metal Spinning GmbH
Publication of EP3423209A1 publication Critical patent/EP3423209A1/en
Application granted granted Critical
Publication of EP3423209B1 publication Critical patent/EP3423209B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/18—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B21H5/025—Internally geared wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length

Definitions

  • the invention relates to a method for producing a gas or liquid tank with a drum-shaped peripheral wall, on the inside of which an inner profile with longitudinal ribs is formed by feeding at least one profiling roller, according to the preamble of claim 1.
  • Such methods for the production of pressure tanks go about from DE 10 2006 032 304 A1 or the DE 10 2006 038 379 A1 out.
  • a tubular starting workpiece is placed on a mandrel with straight milled cuts.
  • the starting workpiece is pressed against the mandrel by flow-forming and longitudinal ribs are formed in accordance with the millings.
  • the DE 1 602 264 A describes a process for the production of longitudinally ribbed tubes.
  • a tubular starting workpiece is pushed onto a mandrel which is provided with teeth on its outside.
  • the thin-walled tube is formed into the toothing on the inner mandrel by feeding spinning wheels with teeth.
  • the entire pipe wall is formed so that the profile is formed both on the inside and on the outside of the workpiece.
  • the WO 2008/13932312 A2 and the EP 1621 263 A1 disclose methods for manufacturing transmission parts with internal gearing.
  • the DE 44 08 427 A1 relates to the production of an annular torsional vibration damper.
  • the invention is based on the object of specifying an efficient method for producing a gas or liquid tank.
  • the method according to the invention is characterized, among other things, in that at least one rotatably mounted profiling roller is fed to an inside of the peripheral wall and that the at least one profiling roller rotates relative to the inside of the peripheral wall, with the inside profile being formed without cutting.
  • a basic idea of the invention consists in molding an inner profile with longitudinal ribs into an inner side of a cavity wall from the inside by means of a profiling roller.
  • the inner profile is, so to speak, rolled in or rolled in.
  • the outer circumference of the profiling roller is matched to the inner diameter of the workpiece, so that when the circumferential wall of the rotating workpiece rotates multiple times relative to the profiling roller, the outer profile meshes exactly is given on the profiling roll with the molded inner profile on the inside of the peripheral wall.
  • the method according to the invention it is possible to also provide larger workpieces with a larger inner diameter with an inner profile, for which the production of an inner mandrel with a matching counter-profile is not economical.
  • the profiling roller when changing the inner profile, only the profiling roller has to be changed, but not a complex inner mandrel.
  • the workpiece is preferably set in rotation via a main spindle drive. Alternatively, the workpiece can be stationary while the internal profiling rollers are driven in rotation.
  • a preferred variant of the method according to the invention is that the at least one profiling roller is infed axially and/or radially.
  • the roller can be rotatably mounted on a roller holder, preferably driven to rotate via a roller drive.
  • the profiling roller is fed with a corresponding feed force so that the material of the workpiece is deformed without cutting and the desired inner profile with the axial longitudinal ribs is formed.
  • the rotation of the workpiece and the rotation of the roller are synchronized, preferably coordinated with one another without slippage. If the profiling rollers are driven by a separate roller drive, however, a defined slip can be provided for the outer profile of the profiling roller to mesh with the inner profile, so that the profiles mesh exactly with one another.
  • the workpiece can be lengthened. Alternatively, the workpiece length can remain the same, with the displaced material being used solely to form the profiling.
  • At least two profiling rollers are infed, the positions and infeed movements of which are coordinated with one another, so that a uniform inner profile is formed on the inside.
  • Preferably three, four or more profiling rollers are provided evenly distributed along the inner circumference of the workpiece.
  • the workpiece can have a diameter of up to 1 m and more.
  • the position, diameter and infeed movements of the profiling rollers are synchronized with one another so that there is always the profiles of the roll and the workpiece mesh with each other. In this way, an exact, uniform inner profile can be generated on the inside of the workpiece.
  • An advantageous embodiment of the method according to the invention consists in profiling being carried out exclusively on the inside of the peripheral wall. A previously machined outer diameter of the workpiece can thus remain unchanged.
  • each inner profiling roller is assigned an outer counter-pressure roller, which is infed radially opposite the profiling roller on an outside of the workpiece.
  • the outer counter-pressure roller preferably has a smooth surface, so that an undesired deformation of the outside of the workpiece is counteracted.
  • the backup roller serves as an abutment to absorb radially outward forces. This makes it possible to provide relatively high radial infeed forces outwards on the profiling roller in order to bring about efficient, non-cutting forming of the inner profile.
  • the counter-pressure roller ensures that the workpiece rotates round.
  • an efficient variant of the method consists in that when the inner profile is molded into the inside, an outside of the peripheral wall remains undeformed.
  • Longitudinal ribs formed as an inner profile.
  • the hollow body is a gas or liquid tank in which the axial longitudinal ribs serve to stiffen the wall of the hollow body.
  • a thin-walled but very stable gas or liquid tank can thus be formed from a metal without cutting.
  • the longitudinal ribs run axially, in particular they can be provided parallel to the longitudinal axis or with a certain deflection angle, so that the longitudinal ribs can have a helical course.
  • the device used is designed such that the at least one profiling roller can be moved into a cavity in the workpiece and advanced to the inside of the drum-shaped peripheral wall, with an internal profile with longitudinal ribs being able to be formed into an inside of the peripheral wall without cutting.
  • the method according to the invention described above can be carried out with a forming device, so that the corresponding advantages result.
  • the profiling roller is rotatably mounted on a corresponding roller holder and can be moved axially into the cavity of the drum-shaped or pot-shaped workpiece via an axial adjustment drive.
  • a corresponding radial infeed force causes the profiling roller to roll on the inside of the drum-shaped peripheral wall of the workpiece, with the inner profile being formed without cutting with longitudinal ribs.
  • the device can be used to efficiently produce a wide variety of inner profiles with longitudinal ribs.
  • the device it is advantageous that at least two profiling rollers are provided, the positions and infeed movements of which can be coordinated with one another, so that a uniform inner profile can be formed on the inside of the workpiece.
  • more than two profiling rolls can be arranged evenly along the inner circumference of the workpiece.
  • the rollers are sized and positioned to uniformly mesh with the molded internal profile.
  • the profiling rollers can each have their own roller drive.
  • the roller drive could preferably be controlled and synchronized with the main spindle drive for rotating the workpiece.
  • each inner profiling roller is assigned an outer counter-pressure roller, which can be advanced radially opposite the profiling roller on an outside of the workpiece.
  • the outer counter-pressure roller can have a smooth surface or even be provided with an external profile.
  • the counter-pressure roller serves as a kind of abutment to absorb the radial deflection forces in order to ensure that the workpiece runs true.
  • the invention is explained in more detail below using a preferred exemplary embodiment, which is shown schematically in the attached drawing.
  • the drawing shows a partial cross-sectional view in a highly schematic manner through part of a device 10 during the forming of a workpiece 1 with a drum-shaped peripheral wall 2.
  • a profiling roller 12 with an outer profile 14 is delivered radially to an inner side 3 of the workpiece 1, while the workpiece 1 is rotated in the direction of the arrow. Due to the radial infeed, the peripheral wall 2 of the workpiece 1 is deformed without cutting, with an inner profile 5 being formed corresponding to the profile 14 of the profiling roller 12 rotating with it.
  • the inner profile 5 has longitudinal ribs 6 running axially.
  • a smooth-surfaced counter-pressure roller 16 is applied to an outer side 4 of the workpiece 1 radially opposite to the profiling roller 12 .
  • the co-rotating counter-pressure roller 16 ensures that the outside 4 of the peripheral wall 2 of the workpiece 1 remains undeformed, and concentricity of the rotating workpiece 1 is thus ensured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Herstellen eines Gas- oder Flüssigkeitstanks mit einer trommelförmigen Umfangswand, an deren Innenseite ein Innenprofil mit Längsrippen durch Zustellen mindestens einer Profilierungsrolle eingeformt wird, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a method for producing a gas or liquid tank with a drum-shaped peripheral wall, on the inside of which an inner profile with longitudinal ribs is formed by feeding at least one profiling roller, according to the preamble of claim 1.

Derartige Verfahren zum Herstellen von Drucktanks gehen etwa aus der DE 10 2006 032 304 A1 oder der DE 10 2006 038 379 A1 hervor. Ein rohrförmiges Ausgangswerkstück wird auf einem Dorn mit geradlinigen Ausfräsungen angeordnet. Durch Drückwalzen wird das Ausgangswerkstück an den Dorn angepresst und dabei Längsrippen entsprechend den Ausfräsungen eingeformt.Such methods for the production of pressure tanks go about from DE 10 2006 032 304 A1 or the DE 10 2006 038 379 A1 out. A tubular starting workpiece is placed on a mandrel with straight milled cuts. The starting workpiece is pressed against the mandrel by flow-forming and longitudinal ribs are formed in accordance with the millings.

Die DE 1 602 264 A beschreibt ein Verfahren zur Herstellung längsgerippter Rohre. Bei diesem bekannten Verfahren wird ein rohrförmiges Ausgangswerkstück auf einen Dorn aufgeschoben, welcher an seiner Außenseite mit Zähnen versehen ist. Durch Zustellen von Drückrädern mit Zähnen wird das dünnwandige Rohr in die Verzahnung am Innendorn eingeformt. Bei diesem bekannten Verfahren wird also die gesamte Rohrwand umgeformt, so dass das Profil sowohl an der Innenseite als auch an der Außenseite des Werkstückes ausgebildet ist.the DE 1 602 264 A describes a process for the production of longitudinally ribbed tubes. In this known method, a tubular starting workpiece is pushed onto a mandrel which is provided with teeth on its outside. The thin-walled tube is formed into the toothing on the inner mandrel by feeding spinning wheels with teeth. In this known method, the entire pipe wall is formed so that the profile is formed both on the inside and on the outside of the workpiece.

Aus der DE 24 20 014 A1 geht ein Abstreckdrückverfahren hervor, bei welchem ein Ausgangswerkstück ebenfalls auf einem profilierten Dorn aufgesetzt wird. Durch ein Abstreckdrückwalzen mittels Abstreckdrückrollen wird das Werkstück gelängt und das Material in die Profilierung am Innendorn eingeformt. Dieses bekannte Verfahren zum Einformen eines Innenprofils bedingt zwingend eine Umformung der Außenkontur des Werkstücks.From the DE 24 20 014 A1 describes a flow ironing process in which a starting workpiece is also placed on a profiled mandrel. The workpiece is lengthened and the material is shaped into the profile on the inner mandrel by means of flow ironing rollers. This well-known procedure For forming an inner profile, the outer contour of the workpiece must be reshaped.

Weitere Verfahren zum Umformen eines rohrförmigen Werkstücks unter Verwendung eines profilierten Innendorns gehen aus der EP 2 210 682 A1 oder der CH 432436 A hervor.Other methods for forming a tubular workpiece using a profiled inner mandrel go from the EP 2 210 682 A1 or the CH 432436 A out.

Aus der DE 1 552 178 A ist ein Verfahren zur Walzreduzierung von Ringwandstärken bekannt. An ein rohrförmiges Werkstück werden gleichzeitig an der Innen- und der Außenseite rollenförmige Walzen zugestellt. Hierdurch kann eine Wanddickenreduzierung bei gleichzeitiger Werkstücklängung erzeugt werden. Weiter wird in dieser Druckschrift gelehrt, die Reduzierwalzen in bestimmten Intervallen voneinander zu trennen, so dass umlaufende ringförmige Rippen ausgebildet werden können.From the DE 1 552 178 A a method for rolling reduction of ring wall thicknesses is known. Roll-shaped rollers are fed simultaneously to the inside and outside of a tubular workpiece. As a result, a reduction in wall thickness can be generated with simultaneous workpiece elongation. This reference also teaches separating the reduction rolls at certain intervals so that circumferential annular ribs can be formed.

Aus der DE 10 2004 010 444 A1 , der WO 2008/13932312 A2 und der EP 1621 263 A1 gehen Verfahren zum Herstellen von Getriebeteilen mit einer Innenverzahnung hervor. Die DE 44 08 427 A1 betrifft die Herstellung eines ringförmigen Drehschwingungsdämpfers.From the DE 10 2004 010 444 A1 , the WO 2008/13932312 A2 and the EP 1621 263 A1 disclose methods for manufacturing transmission parts with internal gearing. the DE 44 08 427 A1 relates to the production of an annular torsional vibration damper.

Der Erfindung liegt die Aufgabe zugrunde, ein effizientes Verfahren zum Herstellen eines Gas- oder Flüssigkeitstanks anzugeben.The invention is based on the object of specifying an efficient method for producing a gas or liquid tank.

Die Aufgabe wird durch ein Verfahren mit den Merkmalen des Anspruchs 1 gelöst. Bevorzugte Ausführungsformen der Erfindung sind in den abhängigen Ansprüchen angegeben.The object is achieved by a method having the features of claim 1. Preferred embodiments of the invention are given in the dependent claims.

Das erfindungsgemäße Verfahren ist unter anderem dadurch gekennzeichnet, dass mindestens eine drehbar gelagerte Profilierungsrolle an eine Innenseite der Umfangswand zugestellt wird und dass die mindestens eine Profilierungsrolle relativ zu der Innenseite der Umfangswand umläuft, wobei das Innenprofil spanlos eingeformt wird.The method according to the invention is characterized, among other things, in that at least one rotatably mounted profiling roller is fed to an inside of the peripheral wall and that the at least one profiling roller rotates relative to the inside of the peripheral wall, with the inside profile being formed without cutting.

Eine Grundidee der Erfindung besteht darin, ein Innenprofil mit Längsrippen in eine Innenseite einer Hohlraumwand mittels Profilierungsrolle von innen einzuformen. Das Innenprofil wird sozusagen eingerollt oder eingewalzt. Gemäß der Erfindung ist dabei der Außenumfang der Profilierungsrolle auf den Innendurchmesser des Werkstücks abgestimmt, so dass bei einem vielfachen Umlauf der Umfangswand des rotierenden Werkstücks gegenüber der Profilierungsrolle ein exaktes Kämmen des Außenprofiles an der Profilierungsrolle mit dem eingeformten Innenprofil an der Innenseite der Umfangswand gegeben ist.A basic idea of the invention consists in molding an inner profile with longitudinal ribs into an inner side of a cavity wall from the inside by means of a profiling roller. The inner profile is, so to speak, rolled in or rolled in. According to the invention, the outer circumference of the profiling roller is matched to the inner diameter of the workpiece, so that when the circumferential wall of the rotating workpiece rotates multiple times relative to the profiling roller, the outer profile meshes exactly is given on the profiling roll with the molded inner profile on the inside of the peripheral wall.

Mit dem erfindungsgemäßen Verfahren ist es möglich, auch größere Werkstücke mit größerem Innendurchmesser mit einem Innenprofil versehen, für welche die Herstellung eines Innendornes mit einem passenden Gegenprofil nicht wirtschaftlich ist. Zudem muss bei einer Änderung des Innenprofils lediglich die Profilierungsrolle geändert werden, nicht jedoch ein aufwändiger Innendorn. Vorzugsweise wird das Werkstück über einen Hauptspindelantrieb in Rotation versetzt. Alternativ kann das Werkstück feststehend sein, während die innen liegenden Profilierungsrollen drehend angetrieben werden.With the method according to the invention it is possible to also provide larger workpieces with a larger inner diameter with an inner profile, for which the production of an inner mandrel with a matching counter-profile is not economical. In addition, when changing the inner profile, only the profiling roller has to be changed, but not a complex inner mandrel. The workpiece is preferably set in rotation via a main spindle drive. Alternatively, the workpiece can be stationary while the internal profiling rollers are driven in rotation.

Eine bevorzugte Verfahrensvariante nach der Erfindung besteht darin, dass die mindestens eine Profilierungsrolle axial und/oder radial zugestellt wird. Die Rolle kann dabei auf einem Rollenhalter drehbar gelagert, vorzugsweise über einen Rollenantrieb drehbar angetrieben sein. Die Profilierungsrolle wird mit einer entsprechenden Zustellkraft zugestellt, so dass das Material des Werkstücks spanlos verformt und das gewünschte Innenprofil mit den axialen Längsrippen eingeformt wird. Die Werkstückdrehung und die Rollendrehung sind dabei synchronisiert, vorzugsweise schlupffrei aufeinander abgestimmt. Bei einem Antrieb der Profilierungsrollen durch einen separaten Rollenantrieb kann für ein Kämmen des Außenprofiles der Profilierungsrolle mit dem Innenprofil jedoch ein definierter Schlupf vorgesehen sein, so dass die Profile exakt miteinander kämmen. Abhängig von der Zustellbewegung und der Werkstückeinspannung kann eine Werkstücklängung erfolgen. Alternativ kann die Werkstücklänge gleich bleiben, wobei das verdrängte Material ausschließlich zum Bilden der Profilierung verwendet wird.A preferred variant of the method according to the invention is that the at least one profiling roller is infed axially and/or radially. The roller can be rotatably mounted on a roller holder, preferably driven to rotate via a roller drive. The profiling roller is fed with a corresponding feed force so that the material of the workpiece is deformed without cutting and the desired inner profile with the axial longitudinal ribs is formed. The rotation of the workpiece and the rotation of the roller are synchronized, preferably coordinated with one another without slippage. If the profiling rollers are driven by a separate roller drive, however, a defined slip can be provided for the outer profile of the profiling roller to mesh with the inner profile, so that the profiles mesh exactly with one another. Depending on the infeed movement and the workpiece clamping, the workpiece can be lengthened. Alternatively, the workpiece length can remain the same, with the displaced material being used solely to form the profiling.

Nach einer weiteren Ausführungsvariante des erfindungsgemäßen Verfahrens ist es bevorzugt, dass mindestens zwei Profilierungsrollen zugestellt werden, deren Positionen und Zustellbewegungen aufeinander abgestimmt werden, so dass ein einheitliches Innenprofil an der Innenseite eingeformt wird. Vorzugsweise sind drei, vier oder mehr Profilierungsrollen gleichmäßig verteilt entlang des Innenumfangs des Werkstücks vorgesehen. Das Werkstück kann dabei einen Durchmesser von bis zu 1 m und mehr aufweisen. Position, Durchmesser und Zustellbewegungen der Profilierungsrollen sind dabei so synchronisiert aufeinander abgestimmt, dass stets die Profile von Rolle und Werkstück miteinander kämmen. So kann ein exaktes einheitliches Innenprofil an der Werkstückinnenseite erzeugt werden. Grundsätzlich ist es möglich, auch Umformoperationen an der Außenseite des Werkstücks durchzuführen, insbesondere auch eine Profilierung der Außenseite zu bewirken. Eine vorteilhafte Ausführungsform des erfindungsgemäßen Verfahrens besteht darin, dass eine Profilierung ausschließlich an der Innenseite der Umfangswand durchgeführt wird. Ein vorab bearbeiteter Außendurchmesser des Werkstücks kann so unverändert bleiben.According to a further embodiment of the method according to the invention, it is preferred that at least two profiling rollers are infed, the positions and infeed movements of which are coordinated with one another, so that a uniform inner profile is formed on the inside. Preferably three, four or more profiling rollers are provided evenly distributed along the inner circumference of the workpiece. The workpiece can have a diameter of up to 1 m and more. The position, diameter and infeed movements of the profiling rollers are synchronized with one another so that there is always the profiles of the roll and the workpiece mesh with each other. In this way, an exact, uniform inner profile can be generated on the inside of the workpiece. In principle, it is possible to also carry out forming operations on the outside of the workpiece, in particular also to bring about a profiling of the outside. An advantageous embodiment of the method according to the invention consists in profiling being carried out exclusively on the inside of the peripheral wall. A previously machined outer diameter of the workpiece can thus remain unchanged.

Insbesondere bei relativ dünnwandigen Werkstücken ist es nach einer weiteren Verfahrensvariante vorteilhaft, dass jeder inneren Profilierungsrolle eine äußere Gegendruckrolle zugeordnet wird, welche der Profilierungsrolle radial gegenüberliegend an einer Außenseite des Werkstücks zugestellt wird. Vorzugsweise ist die äußere Gegendruckrolle glattflächig, so dass einer unerwünschten Verformung der Außenseite des Werkstücks entgegengewirkt wird. Die Gegendruckrolle dient als ein Widerlager, um radial nach außen gerichtete Kräfte aufzunehmen. Dies ermöglicht, an der Profilierungsrolle relativ hohe radiale Zustellkräfte nach außen vorzusehen, um ein effizientes spanloses Einformen des Innenprofils zu bewirken. Die Gegendruckrolle sichert dabei einen runden Umlauf des Werkstücks.Particularly in the case of relatively thin-walled workpieces, it is advantageous according to a further variant of the method that each inner profiling roller is assigned an outer counter-pressure roller, which is infed radially opposite the profiling roller on an outside of the workpiece. The outer counter-pressure roller preferably has a smooth surface, so that an undesired deformation of the outside of the workpiece is counteracted. The backup roller serves as an abutment to absorb radially outward forces. This makes it possible to provide relatively high radial infeed forces outwards on the profiling roller in order to bring about efficient, non-cutting forming of the inner profile. The counter-pressure roller ensures that the workpiece rotates round.

Grundsätzlich ist es möglich, beim Einformen des Innenprofils auch ein Außenprofil in die Außenseite der Umfangswand einzuformen. Eine effiziente Verfahrensvariante besteht nach der Erfindung darin, dass beim Einformen des Innenprofils in die Innenseite eine Außenseite der Umfangswand unverformt bleibt.In principle, it is possible to also form an outer profile into the outside of the peripheral wall when forming the inner profile. According to the invention, an efficient variant of the method consists in that when the inner profile is molded into the inside, an outside of the peripheral wall remains undeformed.

Mit dem erfindungsgemäßen Verfahren wird ein Gas- oder Flüssigkeitstank mit axialenWith the method according to the invention, a gas or liquid tank with axial

Längsrippen als Innenprofil geformt.Longitudinal ribs formed as an inner profile.

Der Hohlkörper ist erfindungsgemäß ein Gas- oder Flüssigkeitstank, bei welchem die axialen Längsrippen zur Versteifung der Hohlkörperwand dienen. Es kann so ein dünnwandiger, jedoch sehr stabiler Gas- oder Flüssigkeitstank aus einem Metall spanlos geformt werden. Die Längsrippen verlaufen axial, insbesondere können diese parallel zur Längsachse oder mit einem gewissen Ablenkwinkel versehen sein, so dass die Längsrippen einen schraubenförmigen Verlauf aufweisen können.According to the invention, the hollow body is a gas or liquid tank in which the axial longitudinal ribs serve to stiffen the wall of the hollow body. A thin-walled but very stable gas or liquid tank can thus be formed from a metal without cutting. The longitudinal ribs run axially, in particular they can be provided parallel to the longitudinal axis or with a certain deflection angle, so that the longitudinal ribs can have a helical course.

Die verwendete Vorrichtung ist derart ausgebildet, dass die mindestens eine Profilierungsrolle in einen Hohlraum des Werkstücks einfahrbar und an die Innenseite der trommelförmigen Umfangswand zustellbar ist, wobei ein Innenprofil mit Längsrippen spanlos in eine Innenseite der Umfangswand einformbar ist.The device used is designed such that the at least one profiling roller can be moved into a cavity in the workpiece and advanced to the inside of the drum-shaped peripheral wall, with an internal profile with longitudinal ribs being able to be formed into an inside of the peripheral wall without cutting.

Mit einer Umformvorrichtung kann insbesondere das zuvor beschriebene erfindungsgemäße Verfahren durchgeführt werden, so dass sich die entsprechenden Vorteile ergeben. Die Profilierungsrolle ist auf einem entsprechenden Rollenhalter drehbar gelagert und über einen axialen Verstellantrieb axial in den Hohlraum des trommel- oder topfförmigen Werkstücks einfahrbar. Durch eine entsprechende radiale Zustellkraft rollt die Profilierungsrolle an der Innenseite der trommelförmigen Umfangswand des Werkstücks ab, wobei das Innenprofil mit Längsrippen spanlos eingeformt wird. Auf diese Weise können mit der Vorrichtung effizient verschiedenste Innenprofile mit Längsrippen hergestellt werden.In particular, the method according to the invention described above can be carried out with a forming device, so that the corresponding advantages result. The profiling roller is rotatably mounted on a corresponding roller holder and can be moved axially into the cavity of the drum-shaped or pot-shaped workpiece via an axial adjustment drive. A corresponding radial infeed force causes the profiling roller to roll on the inside of the drum-shaped peripheral wall of the workpiece, with the inner profile being formed without cutting with longitudinal ribs. In this way, the device can be used to efficiently produce a wide variety of inner profiles with longitudinal ribs.

Gemäß einer Ausführungsform der Vorrichtung ist es vorteilhaft, dass mindestens zwei Profilierungsrollen vorgesehen werden, deren Positionen und Zustellbewegungen aufeinander abstimmbar sind, so dass ein einheitliches Innenprofil an der Innenseite des Werkstücks einformbar ist. Insbesondere können mehr als zwei Profilierungsrollen gleichmäßig entlang des Innenumfangs des Werkstücks angeordnet werden. Hierdurch können sich die auf das Werkstück einwirkenden Querkräfte gegenseitig kompensieren. Die Rollen sind so dimensioniert und angeordnet, dass diese einheitlich mit dem eingeformten Innenprofil kämmen. Zur Synchronisation der Profilierungsrollen mit dem Werkstück können die Profilierungsrollen jeweils über einen eigenen Rollenantrieb verfügen. Der Rollenantrieb könnte vorzugsweise über eine Steuerung mit dem Hauptspindelantrieb zum rotierenden Antreiben des Werkstücks abgestimmt und synchronisiert werden.According to one embodiment of the device, it is advantageous that at least two profiling rollers are provided, the positions and infeed movements of which can be coordinated with one another, so that a uniform inner profile can be formed on the inside of the workpiece. Especially more than two profiling rolls can be arranged evenly along the inner circumference of the workpiece. As a result, the transverse forces acting on the workpiece can compensate each other. The rollers are sized and positioned to uniformly mesh with the molded internal profile. To synchronize the profiling rollers with the workpiece, the profiling rollers can each have their own roller drive. The roller drive could preferably be controlled and synchronized with the main spindle drive for rotating the workpiece.

Eine weitereAusführungsform der Vorrichtung besteht darin, dass jeder inneren Profilierungsrolle eine äußere Gegendruckrolle zugeordnet ist, welche der Profilierungsrolle radial gegenüberliegend an einer Außenseite des Werkstücks zustellbar ist. Die äußere Gegendruckrolle kann glattflächig oder selbst mit einem Außenprofil versehen sein. Die Gegendruckrolle dient als eine Art Widerlager zur Aufnahme der radialen Auslenkkräfte, um so einen Rundlauf des Werkstücks sicherzustellen.A further embodiment of the device consists in that each inner profiling roller is assigned an outer counter-pressure roller, which can be advanced radially opposite the profiling roller on an outside of the workpiece. The outer counter-pressure roller can have a smooth surface or even be provided with an external profile. The counter-pressure roller serves as a kind of abutment to absorb the radial deflection forces in order to ensure that the workpiece runs true.

Die Erfindung wird nachfolgend anhand eines bevorzugten Ausführungsbeispieles weiter erläutert, welches schematisch in der beigefügten Zeichnung dargestellt ist. Die Zeichnung zeigt eine Teilquerschnittsansicht in stark schematisierter Weise durch den Teil einer Vorrichtung 10 beim Umformen eines Werkstücks 1 mit einer trommelförmigen Umfangswand 2.The invention is explained in more detail below using a preferred exemplary embodiment, which is shown schematically in the attached drawing. The drawing shows a partial cross-sectional view in a highly schematic manner through part of a device 10 during the forming of a workpiece 1 with a drum-shaped peripheral wall 2.

An eine Innenseite 3 des Werkstücks 1 wird eine Profilierungsrolle 12 mit einem äußeren Profil 14 radial zugestellt, während das Werkstück 1 in Pfeilrichtung in Rotation versetzt ist. Aufgrund der radialen Zustellung wird die Umfangswand 2 des Werkstücks 1 spanlos verformt, wobei sich entsprechend dem Profil 14 der mitdrehenden Profilierungsrolle 12 ein Innenprofil 5 ausbildet. Das Innenprofil 5 weist axial verlaufende Längsrippen 6 auf.A profiling roller 12 with an outer profile 14 is delivered radially to an inner side 3 of the workpiece 1, while the workpiece 1 is rotated in the direction of the arrow. Due to the radial infeed, the peripheral wall 2 of the workpiece 1 is deformed without cutting, with an inner profile 5 being formed corresponding to the profile 14 of the profiling roller 12 rotating with it. The inner profile 5 has longitudinal ribs 6 running axially.

Radial gegenüberliegend zu der Profilierungsrolle 12 wird an eine Außenseite 4 des Werkstücks 1 eine glattflächige Gegendruckrolle 16 angelegt. Die mitdrehende Gegendruckrolle 16 stellt sicher, dass die Außenseite 4 der Umfangswand 2 des Werkstücks 1 unverformt bleibt und somit ein Rundlauf des rotierenden Werkstücks 1 gesichert ist.A smooth-surfaced counter-pressure roller 16 is applied to an outer side 4 of the workpiece 1 radially opposite to the profiling roller 12 . The co-rotating counter-pressure roller 16 ensures that the outside 4 of the peripheral wall 2 of the workpiece 1 remains undeformed, and concentricity of the rotating workpiece 1 is thus ensured.

Claims (5)

  1. Method for producing a gas or liquid tank with a drum-shaped circumferential wall (2) by means of forming,
    in which
    - on an internal side (3) of the circumferential wall (2) an internal profile (5) with axial longitudinal ribs (6) is formed in a non-cutting manner,
    - wherein the axial longitudinal ribs (6) of the internal profile (5) are provided for the reinforcement of the hollow body wall of the gas or liquid tank,
    characterized in that
    - for the forming of the longitudinal ribs (6) at least one rotatably supported profiling roller (12) is fed to the internal side (3) of the circumferential wall (2) of the gas or liquid tank,
    - in that to each internal profiling roller (12) an external counter-pressure roller (16) is assigned which is fed radially opposite the profiling roller (12) to an external side (4) of the gas or liquid tank, and
    - the at least one profiling roller (12) circulates relative to the internal side (3) of the circumferential wall (2), wherein the internal profile (5) is formed in a non-cutting manner.
  2. Method according to claim 1,
    characterized in that
    the at least one profiling roller (12) is fed axially and/or radially.
  3. Method according to claim 1 or 2,
    characterized in that
    at least two profiling rollers (12) are fed, the positions and feed movements of which are coordinated so that a uniform internal profile (5) is formed on the internal side (3).
  4. Method according to any one of claims 1 to 3,
    characterized in that
    a profiling is exclusively carried out on the internal side (3) of the circumferential wall (2).
  5. Method according to any one of claims 1 to 4,
    characterized in that
    during the forming of the internal profile (5) into the internal side (3) an external side (4) of the circumferential wall (2) remains non-deformed.
EP16816213.9A 2016-03-04 2016-11-28 Method for manufacturing a gas or liquids tank having a drum-type peripheral wall Active EP3423209B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016103946.2A DE102016103946A1 (en) 2016-03-04 2016-03-04 Method and device for forming a workpiece with drum-shaped peripheral wall
PCT/EP2016/078933 WO2017148551A1 (en) 2016-03-04 2016-11-28 Method and device for shaping a workpiece having a drum-type peripheral wall

Publications (2)

Publication Number Publication Date
EP3423209A1 EP3423209A1 (en) 2019-01-09
EP3423209B1 true EP3423209B1 (en) 2022-02-23

Family

ID=57590479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16816213.9A Active EP3423209B1 (en) 2016-03-04 2016-11-28 Method for manufacturing a gas or liquids tank having a drum-type peripheral wall

Country Status (6)

Country Link
US (1) US11033950B2 (en)
EP (1) EP3423209B1 (en)
CN (1) CN109070184B (en)
DE (1) DE102016103946A1 (en)
ES (1) ES2909548T3 (en)
WO (1) WO2017148551A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110721778A (en) * 2019-10-30 2020-01-24 葛军 Anti-deformation solid-liquid separation device for kitchen waste treatment
CN111420992B (en) * 2020-01-03 2021-06-11 华中科技大学 Sizing rolling forming method for axial inner rib cylindrical part

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006032304A1 (en) * 2006-07-11 2008-01-24 Eska Flowform Gmbh Pressure tank for gases and liquids used in aircraft, rocket and vehicle construction comprises internal and external reinforcing ribs
DE102006038379A1 (en) * 2006-07-11 2008-04-03 Eska Flowform Gmbh Seamless and welded pressure tank i.e. highly flexible thin walled pressure tank, for automobile construction, has applying material with material structures or contours that are reinforced, where tank is manufactured by flow turning

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029667A (en) * 1955-08-31 1962-04-17 Lodge & Shipley Co Metal working
US3160036A (en) * 1958-08-29 1964-12-08 Lockheed Aircraft Corp Roll-forming mill
CH432436A (en) 1963-04-22 1967-03-31 Schmoele Metall R & G Method and device for the production of metal finned tubes intended for heat exchangers or condensers etc.
DE1552178A1 (en) 1966-10-17 1970-09-03 Ladish Co Rolling reduction of ring wall thickness
US3469427A (en) * 1967-03-10 1969-09-30 Torrington Co Method and apparatus for cold-rolling annular members
DE2420014A1 (en) 1973-06-07 1975-01-02 France Etat Forming of inner grooves in thin tubes - involves mandrel and pressing rollers to control flow forming
US4126029A (en) * 1976-12-02 1978-11-21 General Electric Company Method of forming hollow cylindrical parts with internal contours
US4538439A (en) * 1982-05-10 1985-09-03 Cantec, Incorporated Cans formed of thin-walled material and apparatus for forming precise fine beads therein
DE3545506A1 (en) * 1985-12-20 1987-07-02 Man Technologie Gmbh TOOL FOR ROLLING HOLLOW CYLINDRICAL WORKPIECES
MY106990A (en) * 1990-12-21 1995-08-30 Metal Box Plc Containers
DE4408427C2 (en) * 1994-03-12 1998-01-15 Freudenberg Carl Fa Process for producing a profiled ring as a flywheel for a torsional vibration damper
US5622070A (en) * 1995-06-05 1997-04-22 Redicon Corporation Method of forming a contoured container
JP3947204B2 (en) * 2003-07-25 2007-07-18 株式会社エムエイチセンター Manufacturing method of parts having internal teeth and rolling machine
CN100372626C (en) * 2003-07-25 2008-03-05 株式会社Mh中心 Method of manufacturing part with internal gear and rolling machine
DE102004010444B4 (en) * 2004-03-01 2010-08-19 Bad Düben Profilwalzmaschinen GmbH Method for producing an inner contour with an inner mandrel acting on the inner wall of a pot-shaped or annular rotationally symmetrical workpiece
US7191626B2 (en) * 2005-06-07 2007-03-20 Profiroll Technologies Gmbh Method for producing an inner contour with an internal arbor acting on the inside wall of a workpiece
ES2676420T3 (en) * 2005-07-15 2018-07-19 Ernst Grob Ag Method for producing internal and external teeth in thin-walled cylindrical holes
US20080282544A1 (en) * 2007-05-11 2008-11-20 Roger Lawcock Powder metal internal gear rolling process
DE102008019437A1 (en) * 2008-04-17 2009-10-22 Gottfried Wilhelm Leibniz Universität Hannover Device and non-cutting forming method for introducing an outer profile into a workpiece
JP2010017737A (en) * 2008-07-10 2010-01-28 M H Center:Kk Countermeasure to deflection of shaft of form rolling tool
JP2010125520A (en) * 2008-12-01 2010-06-10 Musashi Seimitsu Ind Co Ltd Method for forming recessed part to cylindrical base stock
PL2210682T3 (en) 2009-07-09 2012-07-31 Leifeld Metal Spinning Ag Method and apparatus for spinning
CN105108016B (en) * 2015-09-23 2017-03-22 武汉理工大学 Radial rolling method for ring piece with controllable strain distribution

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006032304A1 (en) * 2006-07-11 2008-01-24 Eska Flowform Gmbh Pressure tank for gases and liquids used in aircraft, rocket and vehicle construction comprises internal and external reinforcing ribs
DE102006038379A1 (en) * 2006-07-11 2008-04-03 Eska Flowform Gmbh Seamless and welded pressure tank i.e. highly flexible thin walled pressure tank, for automobile construction, has applying material with material structures or contours that are reinforced, where tank is manufactured by flow turning

Also Published As

Publication number Publication date
EP3423209A1 (en) 2019-01-09
DE102016103946A1 (en) 2017-09-07
CN109070184B (en) 2020-06-05
US11033950B2 (en) 2021-06-15
US20190022735A1 (en) 2019-01-24
WO2017148551A1 (en) 2017-09-08
CN109070184A (en) 2018-12-21
ES2909548T3 (en) 2022-05-09

Similar Documents

Publication Publication Date Title
EP2210682B1 (en) Method and apparatus for spinning
DE2549230C2 (en)
DE102009024847B4 (en) Device for producing helical corrugated pipes
EP2127777A1 (en) Device and method for generating or processing workpieces from a blank mould, in particular for casting internal profiles or internal gears
EP0882532B1 (en) Flow-turning device and method for the manufacture of a workpiece having a toothed face
DE10005578C2 (en) Method and pressure rolling device for producing a hollow body
DE3742516C2 (en) Method for producing a helical internal gear and device for carrying out the method
EP3423209B1 (en) Method for manufacturing a gas or liquids tank having a drum-type peripheral wall
EP1909990B1 (en) Method and device for producing metal rings
EP1356891A1 (en) Method of manufacturing sliding sleeves for gear boxes
EP3265251B1 (en) Method and coating device for applying a cladding layer during the production of a multilayer heavy-duty pipe
CH685542A5 (en) A method for producing a hollow workpiece which is at least inside straight or angled profiled to the workpiece axis.
EP2353744A1 (en) Method for shaping a rotationally symmetric hollow body and device for executing the method
DE102007002228A1 (en) Method for preparing pipes with internal profiles, involves surrounding pipe from outside, by template, where rotating tool presses on pipe wall for producing different wall thickness wall areas in longitudinal direction of pipe
DE19620812B4 (en) Method for producing a rotationally symmetrical body
DE102010000004B4 (en) Process for manufacturing a rim and device for carrying out the process
DE19636567C2 (en) Process for the pressure rolling of a gear part with an internal toothing
DE10311144B3 (en) Method for producing a tube with an internal profile and device for carrying out the method
EP2343138B1 (en) Method and device for forming workpieces
DE102015109433A1 (en) Method and device for wall deformation of a tubular workpiece
DE19953525C2 (en) Process for producing a metallic pipe fitting
DE19650343B4 (en) Process for producing a cylindrical, thin-walled hollow body with a profile
DE29606684U1 (en) Thread rolling head
DE521027C (en) Process for the production of flexible metal hoses
EP2067542A1 (en) Method and rolling mill to produce wireless steel pipes

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180814

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LEIFELD METAL SPINNING GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20211119

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1470031

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502016014567

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2909548

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20220509

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20220223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220623

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220523

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220524

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220623

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502016014567

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20221124

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230511

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20221128

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20221130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221130

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221128

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221130

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221130

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1470031

Country of ref document: AT

Kind code of ref document: T

Effective date: 20221128

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20231215

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221128

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231129

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20161128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220223