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EP0719601A1 - Universal rolling stand for forming tubes - Google Patents

Universal rolling stand for forming tubes Download PDF

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Publication number
EP0719601A1
EP0719601A1 EP95250300A EP95250300A EP0719601A1 EP 0719601 A1 EP0719601 A1 EP 0719601A1 EP 95250300 A EP95250300 A EP 95250300A EP 95250300 A EP95250300 A EP 95250300A EP 0719601 A1 EP0719601 A1 EP 0719601A1
Authority
EP
European Patent Office
Prior art keywords
universal
chocks
stand
tubes
rollers
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.)
Granted
Application number
EP95250300A
Other languages
German (de)
French (fr)
Other versions
EP0719601B1 (en
Inventor
Klaus Rehag
Bernhard Dr. Dipl.-Ing. Heiman
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0719601A1 publication Critical patent/EP0719601A1/en
Application granted granted Critical
Publication of EP0719601B1 publication Critical patent/EP0719601B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08Making tubes with welded or soldered seams
    • B21C37/083Supply, or operations combined with supply, of strip material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B13/00Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/08Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B21B13/10Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane
    • B21B13/103Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane for rolling bars, rods or wire
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B17/00Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/14Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B31/00Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B31/00Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16Adjusting or positioning rolls
    • B21B31/20Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C3/00Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing
    • B21C3/02Dies; Selection of material therefor; Cleaning thereof
    • B21C3/06Dies; Selection of material therefor; Cleaning thereof with adjustable section
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/155Making tubes with non-circular section
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B31/00Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16Adjusting or positioning rolls

Definitions

  • the invention relates to a universal frame for the continuous forming of pipes, in particular in pipe welding systems, to round or profile pipes with the aid of oppositely arranged pairs, in a common plane perpendicular to the longitudinal axis of the pipe, whose appropriately trained calibers enclose the pipe.
  • a plurality of stands arranged in series, each with four rollers arranged in one plane, are used, which, according to their roller calibration, give the tube a round or profiled (rectangular or square) cross-sectional shape.
  • the universal rolling stands for forming round tubes are accordingly equipped with round-calibrated rollers, each of which is precisely tailored to the desired tube profile. This means that new rollers would have to be inserted into the stand for every other tube profile to be formed, which requires considerable conversion measures.
  • the complete universal internals can be removed from the universal rolling stands and optionally exchanged for universal internals for the production of round tubes or for the production of profile tubes.
  • the present invention makes it possible, for the first time, to use universal fittings for the production of round tubes and those for the production of profiled tubes in the same contour of a pipe welding system in the same scaffold, so that the complex conversion of the scaffolds for different pipe cross-sectional shapes is significantly reduced.
  • the downtimes of the pipe welding system are reduced so significantly that a noticeably higher output is achieved.
  • the chocks receiving the rollers of each universal installation for producing profile tubes are box-shaped and each chock is displaceably guided parallel and transversely to the axis of the roller accommodated in it on the adjacent chocks of the same universal installation.
  • the guides for moving the chocks are provided on the side cheeks of the chocks and are designed as slide strips and sliding grooves receiving these, the guides for the adjacent chocks of a universal installation being perpendicular to one another, then a dimensionally stable and precisely manageable adjustment mechanism, which, in addition to short adjustment times and the inexpensive removal and installation of the universal installation kit mentioned above, also guarantees exact shape retention of the pipes produced.
  • FIG. 1 denotes the stand of the universal rolling stand, which is suitable for the continuous forming of round tubes as well as profile tubes.
  • the universal installation identified overall by 2
  • the rollers 3 to 6 are stored in chocks.
  • the upper chock with 7, the lower chock with 8 and the chocks of the vertical rollers with 9 and 10 are designated.
  • the upper adjustment 11 and the lower adjustment 12 are provided, which accomplish the adjustment to the rolling line and / or the adjustment of the rollers relative to one another in a conventional manner.
  • the hydraulic adjustment for roller 6, which can be seen at 13 and the hydraulic adjustment 14 for roller 5, which is moved upwards in FIG. 1 on the sliding guide 15i attached to the stand 1, are provided, so that the complete universal installation is possible can be moved with the chocks 7, 8, 9 and 10 and the rollers 3, 4, 5 and 6 out of the scaffold window in the position shown in dashed lines next to the stand 1.
  • the hydraulic adjustment 14 is moved downward and acts like the adjustment 14 on the chock 9 of the vertical roller 5.
  • a universal installation for the production of profiled tubes consists of four box-shaped installation pieces which accommodate the rollers 3 to 6 and which are nested in one another in the installed state.
  • the chock receiving the upper horizontal roller 3 is designated 17, the chock receiving the lower horizontal roller 18.
  • the chocks supporting the vertical rollers are designated 19 for the roller 5 and 20 for the roller 6.
  • each chock is provided on the inner and outer flanks with guides for the adjacent chocks.
  • the chock 19 is provided on both opposite flanks with guide strips 20 and 21, the guide strip 21 corresponding to a correspondingly designed groove 23 on the inner flank of the chock 18 in the assembled state and the strip 20 in the correspondingly designed grooves 24 on the chock 17 fits for the upper horizontal roller 3.
  • the grooves 25 correspond with the strips 26 on the chock 20, the strips 27 on the chock 20 fit into the grooves 28 on the chock 17.
  • FIGS. 6 and 7 show two different shift positions of the rollers 3 to 6. As can be seen, the pipes 16 have been given 3 to 6 different cross-sectional areas by the axial displacement of the rollers.
  • the advantage of the present invention can be seen on the one hand in the interchangeability of the universal internals for round tubes and profiled tubes and on the other hand in the favorable sliding mounting of the chocks of the universal internals for the manufacture of profiled tubes, so that with the simplest structural design and therefore economical manufacturability best results on the tubes produced therewith are to be expected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

The universal roll stand for continuous forming of pipes(in particular, in pipe welding installations) incorporates pairwise opposing, appropriately grooved rolls which are adjustable in common plane perpendicular to the longitudinal pipe axis. It is characterised by the fact that complete universal roll assemblies (2) can be removed from the stand (1) and be replaced with other complete universal roll assemblies for production of round or different profiled pipes.

Description

Die Erfindung betrifft ein Universahvalzgerüst zum kontinuierlichen Umformen von Rohren, insbesondere in Rohrschweißanlagen, zu Rund- oder Profilrohren mit Hilfe von sich paarweise sich gegenüberliegend, in einer gemeinsamen zur Rohrlängsachse senkrechten Ebene verstellbar angeordneten Walzen, deren entsprechend ausgebildete Kaliber das Rohr umschließen.The invention relates to a universal frame for the continuous forming of pipes, in particular in pipe welding systems, to round or profile pipes with the aid of oppositely arranged pairs, in a common plane perpendicular to the longitudinal axis of the pipe, whose appropriately trained calibers enclose the pipe.

Im Konturformteil von Schweißanlagen werden eine Mehrzahl in Reihe hintereinander angeordneter Gerüste mit jeweils vier in einer Ebene angeordneten Walzen eingesetzt, die, entsprechend ihrer Walzenkalibrierung, dem Rohr eine runde oder profilierte (rechteckige oder quadratische) Querschnittsform geben. Die Universawalzgerüste zum Formen runder Rohre werden demgemäß mit rund kalibrierten Walzen ausgestattet, die jeweils exakt auf das gewünschte Rohrprofil abgestellt sind. Das bedeutet, daß für jedes andere zu formende Rohrprofil neue Walzen in das Gerüst eingesetzt werden müssten, was erhebliche Umbaumaßnahmen erfordert.In the contoured molding of welding systems, a plurality of stands arranged in series, each with four rollers arranged in one plane, are used, which, according to their roller calibration, give the tube a round or profiled (rectangular or square) cross-sectional shape. The universal rolling stands for forming round tubes are accordingly equipped with round-calibrated rollers, each of which is precisely tailored to the desired tube profile. This means that new rollers would have to be inserted into the stand for every other tube profile to be formed, which requires considerable conversion measures.

Zum Herstellen von Profilrohren, beispielsweise Vierkantrohren, sind Universalgerüste bekannt, deren Walzen zur Anpassung der Rohrquerschnittsform radial und axial auf Schlitten verschiebbar angeordnet waren, so daß durch verschachteltes Einstellen der Walzen verschiedene Querschnittsformen erzielbar sind. Diese vorbekannten Universaleinbauten sind jedoch ausschießlich für die Herstellung von Profilen geeignet. Der konstruktive Versteilaufwand der bekannten Universaleinbauten ist erheblich.For the production of profiled tubes, for example square tubes, universal stands are known, the rollers of which were arranged so that they could be displaced radially and axially on slides to adapt the tube cross-sectional shape, so that different cross-sectional shapes can be achieved by nested adjustment of the rollers. However, these previously known universal internals are only suitable for the production of profiles. The design adjustment effort of the known universal internals is considerable.

Es ist auch schon vorgeschlagen worden (EP 0582562) eine Anpassung an unterschiedliche Rohrgrößen und Rohrformen dadurch vorzunehmen, daß die radial gegenüber dem Rohr verstellbaren Walzen jeweils um eine zur Rohrachse parallele Schwenkachse schwenkverstellbar gelagert werden. Durch diese aufwendige Maßnahme kann aber nur eine sehr eingeschränkte Anpassung an die Rohrendform erreicht werden; das Einformen von kreisrunden Rohren ist mit einer derartigen Anordnung nicht möglich.It has also already been proposed (EP 0582562) to adapt to different pipe sizes and pipe shapes in that the rolls which are radially adjustable with respect to the pipe are each mounted so as to be pivotable about a pivot axis parallel to the pipe axis. With this complex measure, however, only a very limited adaptation to the pipe end shape can be achieved; the molding of circular tubes is not possible with such an arrangement.

Ausgehend von dem beschriebenen Stand der Technik und den geschilderten Problemen und Nachteilen ist es die Aufgabe der vorliegenden Erfindung, ein Universalwalzgerüst der gattungsgemäßen Art so auszubilden, daß mit geringem konstruktiven Aufwand und hoher Zuverlässigkeit sowohl Rundrohre wie auch Profilrohre mit großer Formgenauigkeit wirtschaftlich hergestellt werden können.Based on the described prior art and the problems and disadvantages described, it is the object of the present invention to design a universal rolling stand of the generic type in such a way that both round tubes and profile tubes can be economically produced with great dimensional accuracy with little design effort and high reliability.

Zur Lösung der Aufgabe wird vorgeschlagen, daß die kompletten Universaleinbauten aus den Universalwalzgerüsten ausbaubar und wahlweise gegen Universaleinbauten zur Herstellung von Rundrohren bzw. zur Herstellung von Profilrohren austauschbar sind.To solve the problem, it is proposed that the complete universal internals can be removed from the universal rolling stands and optionally exchanged for universal internals for the production of round tubes or for the production of profile tubes.

Die vorliegende Erfindung ermöglicht es erstmals, im Konturformteil einer Rohrschweißanlage in ein und demselben Gerüst wahlweise Universaleinbauten zum Herstellen von Rundrohren sowie solche zum Herstellen von Profilrohren einzusetzen, so daß der aufwendige Umbau der Gerüste für unterschiedliche Rohrquerschnittsformen wesentlich verringert wird. Durch Austausch der kompletten Universaleinbauten verringem sich die Stillstandszeiten der Rohrschweißanlage so wesentlich, daß eine merklich höhere Ausbringung erzielt wird.The present invention makes it possible, for the first time, to use universal fittings for the production of round tubes and those for the production of profiled tubes in the same contour of a pipe welding system in the same scaffold, so that the complex conversion of the scaffolds for different pipe cross-sectional shapes is significantly reduced. By replacing the complete universal internals, the downtimes of the pipe welding system are reduced so significantly that a noticeably higher output is achieved.

In einer besonders günstigen Weiterbildung der vorliegenden Erfindung wird vorgeschlagen, daß die die Walzen aufnehmenden Einbaustücke jedes Universaleinbaus zum Herstellen von Profilrohren kastenförmig ausgebildet sind und jedes Einbaustück parallel und quer zur Achse der in ihm aufgenommenen Walze an den benachbarten Einbaustücken des gleichen Universaleinbaus Verschiebbar geführt ist.In a particularly favorable development of the present invention, it is proposed that the chocks receiving the rollers of each universal installation for producing profile tubes are box-shaped and each chock is displaceably guided parallel and transversely to the axis of the roller accommodated in it on the adjacent chocks of the same universal installation.

Ausgehend von einem bekannten Universalgerüst, wie es als CTA-Kalibrierelement der Firma Voest-Alpine beschrieben wird, wird ein Universaleinbau derart vereinfacht und optimiert, daß nicht nur die Austauschbarkeit gegen einen Einbausatz zur Herstellung von Rundrohren leicht und schnell möglich ist, sondern auch die Verstellung des Universaleinbaus bei der Herstellung von Profilrohren auf unterschiedliche Querschnittsformen einfach und genau mit gennstem Bauaufwand möglich wird. Die Führungen zur Verstellung der Einbaustücke und damit der Walzen des Universaleinbaus zum Herstellen von Profilrohren sind nicht mehr in den Gerüsten vorgesehen, sondern an den die Walzen aufnehmenden Einbaustücken selbst. Durch die Anordnung der Führungen wird eine exakte Verstellung der Walzen durch am Gerüst abgestützte Anstellelemente möglich, die beim Ausbau des Universaleinbaus am Gerüst verbleiben und somit den Ausbau vereinfachen. Der Universaleinbausatz ist kompakt und übersichtlich konstruiert.Starting from a well-known universal scaffold, as it is described as a CTA calibration element by Voest-Alpine, universal installation is simplified and optimized in such a way that not only is it quick and easy to replace it with an installation kit for the production of round tubes, but also adjustment of universal installation in the manufacture of profile tubes with different cross-sectional shapes is possible simply and precisely with the least construction effort. The guides for adjusting the chocks and thus the rollers of the universal installation for the production of profile tubes are no longer provided in the stands, but on the chocks that receive the rollers themselves. The arrangement of the guides enables exact adjustment of the rollers by adjusting elements supported on the frame that remain on the scaffolding when the universal installation is removed, thus simplifying the removal. The universal installation kit is compact and clearly designed.

Wenn in einer weiteren Ausgestaltung der Erfindung vorgeschlagen ist, daß die Führungen zum Verschieben der Einbaustücke an den Seitenwangen der Einbaustücke vorgesehen und als Gleitleisten und diese aufnehmende Gleitnuten ausgebildet sind, wobei die Führungen für die benachbarten Einbaustücke eines Universaleinbaus senkrecht zueinander verlaufen, so wird eine formstabile und exakt führbare Verstellmechanik geschaffen, die neben kurzen Verstellzeiten und dem bereits mehrfach erwähnten günstigen Aus- und Einbau des Universaleinbausatzes, auch exakte Formhaltigkeit der hergestellten Rohre garantiert.If it is proposed in a further embodiment of the invention that the guides for moving the chocks are provided on the side cheeks of the chocks and are designed as slide strips and sliding grooves receiving these, the guides for the adjacent chocks of a universal installation being perpendicular to one another, then a dimensionally stable and precisely manageable adjustment mechanism, which, in addition to short adjustment times and the inexpensive removal and installation of the universal installation kit mentioned above, also guarantees exact shape retention of the pipes produced.

Zum Auswechsein der Universaleinbauten werden diese seitlich aus dem Universalwalzgerüst ausgefahren, wozu die ausbauseitige Horizontalanstellung an einer Gleitführung quer aus dem Bereich des Gerüstständerfensters entfernbar ist. Lediglich an der Ausbauseite des Gerüstes wird also die vorgesehene Anstellung entfernt, wobei die Gleitführung am Gerüst vorgesehen ist und somit die Horizontalanstellung-zwar seitlich verschoben- doch am Gerüst bleibt.To replace the universal internals, these are extended laterally from the universal rolling stand, for which purpose the horizontal adjustment on the slide on a slide guide can be removed transversely from the area of the stand frame window. Only on the dismantling side of the scaffold is the intended employment removed, the sliding guide being provided on the scaffold and thus the horizontal adjustment - although laterally displaced - remains on the scaffold.

Ein Ausführungsbeispiel der Erfindung ist der Zeichnung dargestellt und wird nachfolgend beschrieben. Es zeigt:

Figur 1
Ein Universalwatzgerüst nach der Erfindung zum Herstellen von Rundrohren in Ausbaustellung bzw. ausgebauter Stellung.
Figur 2
Das Gerüst nach Figur in Arbeitsstellung.
Figur 3
Ein erfindungsgemäßes Univemalwalzgerüst zum Herstellen von Profilrohren in Ausbaustellung bzw. ausgebauter Stellung.
Figur 4
Den aus den Universalwalzgerüst ausgebauten Universaleinbau in perspektivischer Darstellung.
Figur 5
Den Universaleinbau nach Figur 5 mit vereinzelten Einbaustücken.
Figuren 6u.7
Zwei erfindungsgemäße Universalwalzgerüste zum Herstellen von Profilrohren unterschiedlicher Querschnitte.
An embodiment of the invention is shown in the drawing and is described below. It shows:
Figure 1
A universal honeycomb scaffold according to the invention for the production of round tubes in the extended position or in the expanded position.
Figure 2
The scaffold according to the figure in the working position.
Figure 3
A universal roll stand according to the invention for the production of profile tubes in the extended position or in the removed position.
Figure 4
A perspective view of the universal installation removed from the universal roll stand.
Figure 5
The universal installation according to Figure 5 with isolated chocks.
Figures 6u.7
Two universal roll stands according to the invention for producing profile tubes of different cross sections.

In Figur 1 ist mit 1 der Ständer des Universalwalzgerüstes bezeichnet, der sowohl zum kontinuierlichen Umformen von Rundrohren wie auch Profilrohren geeignet ist. Im Ständer 1 ist der insgesamt mit 2 bezeichnete Universaleinbau erkennbar, der aus der oberen Horizontalwalze 3, der unteren Horizontalwalze 4 und den beiden Vertikalwalzen 5 und 8 besteht. Die Walzen 3 bis 6 sind in Einbaustücken gelagert. wobei das obere Einbaustück mit 7, das untere Einbaustück mit 8 und die Einbaustücke der Vertikalwalzen mit 9 und 10 bezeichnet sind.In FIG. 1, 1 denotes the stand of the universal rolling stand, which is suitable for the continuous forming of round tubes as well as profile tubes. In the stand 1, the universal installation, identified overall by 2, can be seen, which consists of the upper horizontal roller 3, the lower horizontal roller 4 and the two vertical rollers 5 and 8. The rollers 3 to 6 are stored in chocks. the upper chock with 7, the lower chock with 8 and the chocks of the vertical rollers with 9 and 10 are designated.

Zur Anstellung der oberen und unteren Horizontalwalzen 3 und 4 sind die obere Anstellung 11 und die untere Anstellung 12 vorgesehen, die in konventioneller Weise die Einstellung zur Walzlinie und/oder die Anstellung der Walzen zueinander bewerkstelligen. Zur Einstellung der Vertikalwalzen 5 und 6 ist die bei 13 erkennbare hydraulische Anstellung für die Walze 6 vorgesehen sowie die hydraulische Anstellung 14 für die Walze 5, die in Figur 1 an der am Ständer 1 befestigten Gleitführung 15i nach oben verfahren ist, damit der komplette Universaleinbau mit den Einbaustücken 7, 8, 9 und 10 und den Walzen 3, 4, 5 und 6 aus dem Gerüstfenster heraus in die gestrichelt dargestellte Lage neben dem Ständer 1 verfahren werden kann. In Arbeitsstellung ist die hydraulische Anstellung 14 nach unten verfahren und wirkt, wie die Anstellung 14 auf das Einbaustück 9 der Vertikalwalze 5.For the adjustment of the upper and lower horizontal rollers 3 and 4, the upper adjustment 11 and the lower adjustment 12 are provided, which accomplish the adjustment to the rolling line and / or the adjustment of the rollers relative to one another in a conventional manner. To adjust the vertical rollers 5 and 6, the hydraulic adjustment for roller 6, which can be seen at 13, and the hydraulic adjustment 14 for roller 5, which is moved upwards in FIG. 1 on the sliding guide 15i attached to the stand 1, are provided, so that the complete universal installation is possible can be moved with the chocks 7, 8, 9 and 10 and the rollers 3, 4, 5 and 6 out of the scaffold window in the position shown in dashed lines next to the stand 1. In the working position, the hydraulic adjustment 14 is moved downward and acts like the adjustment 14 on the chock 9 of the vertical roller 5.

Aus Figur 1 ist auch ersichtlich, daß zum Ausbau des Universaleinbaus die Einbaustücke aufeinander gefahren werden, d.h. die Einbaustücke 9 und 10 der Vertikalwalzen werden auf dem Einbaustück 8 der unteren Horizontalwalze abgesetzt und das Einbaustück 7 der oberen Horizontalwalze 3 wird auf den Einbaustücken 9 und 10 der Vertikalwalzen abgesetzLFrom Figure 1 it can also be seen that to remove the universal installation, the chocks are moved onto each other, ie the chocks 9 and 10 of the vertical rollers are placed on the chock 8 of the lower horizontal roller and the chock 7 of the upper horizontal roller 3 is placed on the chocks 9 and 10 of the vertical rollers

In Arbeitsstellung, die in Figur 2 dargestellt ist, sind die Einbaustücke 7, 8, 9 und 10 so zur Walzachse zentriert eingestellt, daß die Kaliber der Walzen 3 bis 6 das Rohr 16 allseitig umschließen und kalibrieren. Gleiche Teile sind die Figur 2 gleich bezeichnet.In the working position, which is shown in Figure 2, the chocks 7, 8, 9 and 10 are set centered on the rolling axis so that the calibres of the rollers 3 to 6 enclose and calibrate the tube 16 on all sides. Identical parts are identified in the same way in FIG. 2.

In Figur 3 ist in dem gleichen Ständer 1 des Universalwalzgerüstes ein Universaleinbau zum Herstellen von Profilrohren eingesetzt. Zur Vereinfachung sind auch hier gleiche Teile gleich bezeichnet. Mit den Anstellungen 11, 12, 13 und 14 werden die jetzt für die zylindrischen Walzen 3 bis 5 entsprechend ausgebildeten Einbaustücke 7, 8, 9 und 10 auf das gewünschte Kaliber eingestellt, wie später noch beschrieben wird. Auch bei diesem Universaleinbau werden zum Ausbau die Einbaustücke aufeinandergefahren, wie dies zur Figur 1 beschrieben wurde. Bei aus dem Bereich des Ständers 1 verschobener hydraulischer Anstellung 14 kann der Universaleinbau komplett in die gestrichelt dargestellte Stellung ausgefahren werden.In Figure 3, a universal installation for producing profile tubes is used in the same stand 1 of the universal rolling stand. For the sake of simplicity, the same parts are also labeled here. With the positions 11, 12, 13 and 14, the chocks 7, 8, 9 and 10, which are now appropriately designed for the cylindrical rollers 3 to 5, are set to the desired caliber, as will be described later. With this universal installation, too, the chocks are moved together for removal, as was described for FIG. 1. When the hydraulic position 14 is moved out of the area of the stand 1, the universal installation can be completely extended into the position shown in dashed lines.

Wie in Figur 4 perspektivisch dargestellt, besteht ein Universaleinbau zum Herstellen von Profilrohren aus vier kastenförmig ausgebildeten, die Walzen 3 bis 6 aufnehmenden Einbaustücken, die im Einbauzustand ineinander verschachtelt sind. Das die obere Horizontalwalze 3 aufnehmende Einbaustück ist mit 17 bezeichnet, das die untere Horizontalwalze aufnehmende Einbaustück mit 18. Die die Vertikalwalzen lagernden Einbaustücke sind für die Walze 5 mit 19 und die für die Walze 6 mit 20 bezeichnet.As shown in perspective in FIG. 4, a universal installation for the production of profiled tubes consists of four box-shaped installation pieces which accommodate the rollers 3 to 6 and which are nested in one another in the installed state. The chock receiving the upper horizontal roller 3 is designated 17, the chock receiving the lower horizontal roller 18. The chocks supporting the vertical rollers are designated 19 for the roller 5 and 20 for the roller 6.

In Figur 5 sind zum besseren Verständnis die kastenförmigen Einbaustücke mit den Walzen - wie in einer Explosionszeichnung - auseinandergebaut dargestellt, wodurch erkennbar ist, daß jedes Einbaustück an den inneren bzw. äußeren Flanken mit Führungen für die jeweils benachbarten Einbaustücke versehen sind. So ist erkennbar das Einbaustück 19 an beiden gegenüberliegenden Flanken mit Führungsleisten 20 und 21 versehen, wobei die Führungsleiste 21 im zusammengebauten Zustand mit einer entsprechend ausgebildeten Nut 23 an der inneren Flanke des Einbaustückes 18 korrespondiert und die Leiste 20 in die entsprechend ausgebildeten Nuten 24 am Einbaustück 17 für die obere Horizontalwalze 3 paßt. Die Nuten 25 korrespondieren mit den Leisten 26 am Einbaustück 20, die Leisten 27 am Einbaustück 20 passen in die Nuten 28 am Einbaustück 17.In Figure 5, the box-shaped chocks with the rollers are shown disassembled - as in an exploded view -, so that it can be seen that each chock is provided on the inner and outer flanks with guides for the adjacent chocks. Thus, the chock 19 is provided on both opposite flanks with guide strips 20 and 21, the guide strip 21 corresponding to a correspondingly designed groove 23 on the inner flank of the chock 18 in the assembled state and the strip 20 in the correspondingly designed grooves 24 on the chock 17 fits for the upper horizontal roller 3. The grooves 25 correspond with the strips 26 on the chock 20, the strips 27 on the chock 20 fit into the grooves 28 on the chock 17.

Durch die derartig ausgebildete Führung der Einbaustücke 17, 18, 19, 20 am jeweils benachbarten Einbaustück wird eine stabile und kompakte Führung der Einbaustücke zueinander erreicht und gleichzeitig sichergestellt, daß eine genaue axiale und gleichzeitig parallele Verschiebung der Walzen 3 bis 6 zueinander zur Einstellung der gewünschten Querschnittsformen ermöglicht wird. In Figuren 6 und 7 sind zwei unterschiedliche Verschiebestellungen der Walzen 3 bis 6 dargestellt. Erkennbar haben die Rohre 16 durch die Axialverschiebung der Walzen 3 bis 6 unterschiedliche Querschnittsflächen erhalten.By thus guiding the chocks 17, 18, 19, 20 on the adjacent chock, a stable and compact guide of the chocks to each other is achieved and at the same time it is ensured that an exact axial and parallel displacement of the rollers 3 to 6 to each other to set the desired Cross-sectional shapes is made possible. FIGS. 6 and 7 show two different shift positions of the rollers 3 to 6. As can be seen, the pipes 16 have been given 3 to 6 different cross-sectional areas by the axial displacement of the rollers.

Der Vorteil der vorliegenden Erfindung ist einerseits in der Austauschbarkeit der Universaleinbauten für Rundrohre und Profilrohre und andererseits in der günstigen Verschiebelagerung der Einbaustücke des Universaleinbaus zum Herstellen von Profilrohren zu sehen, so daß bei einfachster konstruktiver Ausgestaltung und damit wirtschaftlicher Herstellbarkeit beste Ergebnisse an den damit hergestellten Rohren zu erwarten sind.The advantage of the present invention can be seen on the one hand in the interchangeability of the universal internals for round tubes and profiled tubes and on the other hand in the favorable sliding mounting of the chocks of the universal internals for the manufacture of profiled tubes, so that with the simplest structural design and therefore economical manufacturability best results on the tubes produced therewith are to be expected.

Claims (4)

Universalwatz gerüst zum kontinuierlichen Umformen von Rohren, insbesondere in Rohrschweißanlagen, zu Rund- oder Profilrohren mit Hilfe von sich paarweise gegenüberliegend in einer gemeinsamen zur Rohrlängsachse senkrechten Ebene verstellbar angeordneten Walzen, deren entsprechend ausgebildete Kaliber das Rohr umschließen.
dadurch gekennzeichnet,
daß die kompletten Universaleinbauten (2) aus dem Ständer (1) des Universalwalzgerüstes ausbaubar und wahlweise gegen Universaleinbauten (2) zur Herstellung von Rundrohren bzw. zur Herstellung von Profilrohren austauschbar sind.
Universalwatz scaffold for the continuous forming of pipes, in particular in pipe welding systems, to round or profile pipes with the help of rollers arranged opposite each other in pairs in a common plane perpendicular to the pipe longitudinal axis, whose appropriately trained calibers enclose the pipe.
characterized,
that the complete universal internals (2) can be removed from the stand (1) of the universal rolling stand and can be exchanged for universal internals (2) for the production of round tubes or for the production of profile tubes.
Universalwalzgerüst nach Anspruch 1,
dadurch gekennzeichnet,
daß die die Walzen aufnehmenden Einbaustücke (7 bis 10) jedes Universaleinbaus (2) zum Herstellen von Profilrohren kastenförmig ausgebildet sind und jedes Einbaustück (7 bis 10) parallel und quer zur Achse der in ihm aufgenommenen Walze (3 bis6) an den benachbarten Einbaustücken (7 oder 8 oder 9 oder 10) des gleichen Universaleinbaus (2) verschiebbar geführt ist.
Universal rolling stand according to claim 1,
characterized,
that the chocks receiving the rollers (7 to 10) of each universal installation (2) for producing profiled tubes are box-shaped and each chock (7 to 10) parallel and transverse to the axis of the roller (3 to 6) accommodated in it on the adjacent chocks ( 7 or 8 or 9 or 10) of the same universal installation (2) is slidably guided.
Universamalzgerüst nach Anspruch 2,
dadurch gekennzeichnet,
daß die Führungen (20,21,23,24,25,26,27,28) zum Verschieben der Einbaustücke (7 bis 10) an den Seitenwangen der Einbaustücke vorgesehen und als Gleitleisten und diese aufnehmende Gleitnuten ausgebildet sind, wobei die Führungen für die benachbarten Einbaustücke (7 bis 10) eines Universaleinbaus (2) senkrecht zueinander verlaufen.
Universal salt stand according to claim 2,
characterized,
that the guides (20, 21, 23, 24, 25, 26, 27, 28) are provided for moving the chocks (7 to 10) on the side cheeks of the chocks and are designed as slide strips and slide grooves receiving them, the guides for the Adjacent chocks (7 to 10) of a universal installation (2) run perpendicular to each other.
Universalwalzgerüst nach Anspruch 1 bis 3,
dadurch gekennzeichnet;
daß die Universaleinbauten (2) seitlich aus den Ständem (1) der Universalwalzgerüste ausfahrbar sind, wozu die ausbauseitige Honzontalanstellung (14) an einer Gleitführung (15) quer aus dem Bereich des Gerüstständerfensters entfernbar ist.
Universal roll stand according to claims 1 to 3,
characterized;
that the universal internals (2) can be extended laterally from the stands (1) of the universal rolling stands, for which purpose the horizontal adjustment (14) on the slide guide (15) can be removed transversely from the area of the stand frame window.
EP95250300A 1994-12-23 1995-12-07 Universal rolling stand for forming tubes Expired - Lifetime EP0719601B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4447397 1994-12-23
DE4447397A DE4447397C2 (en) 1994-12-23 1994-12-23 Universal form rolling stand for the continuous contour forming of pipes

Publications (2)

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EP0719601A1 true EP0719601A1 (en) 1996-07-03
EP0719601B1 EP0719601B1 (en) 1999-01-27

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EP95250300A Expired - Lifetime EP0719601B1 (en) 1994-12-23 1995-12-07 Universal rolling stand for forming tubes

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US (1) US5685188A (en)
EP (1) EP0719601B1 (en)
JP (1) JP3841864B2 (en)
AT (1) ATE176179T1 (en)
DE (2) DE4447397C2 (en)

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WO2000064606A1 (en) * 1999-04-21 2000-11-02 Nakata Manufacturing Co., Ltd Method for manufacturing a pipe with a not circular cross-section and device therefor

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EP1150785B1 (en) * 1999-10-17 2004-12-29 Karl Fuhr GmbH & Co. KG Roller device and method for adjusting said device
DE10127562A1 (en) * 2001-06-06 2002-12-19 Sms Meer Gmbh Universal mill stand used for continuously deforming tubes, especially in tube welding devices, to round or profile tubes has a vertical roller assigned to the drive side of horizontal rollers
DE10160004B4 (en) * 2001-12-06 2004-01-29 Sms Meer Gmbh Method and device for changing the rolls in a pipe welding stand
JP5456062B2 (en) * 2009-12-28 2014-03-26 株式会社中田製作所 Turks head stand
DE102011107786A1 (en) * 2010-11-03 2012-05-03 Sms Meer Gmbh Rolling mill, rolling stand and method for changing rolling stands in a rolling mill
JP6385552B1 (en) 2017-11-22 2018-09-05 株式会社中田製作所 Roll forming machine
CN113198889A (en) * 2021-04-16 2021-08-03 凌云工业股份有限公司 Five-roller extruding machine for high-frequency welded pipe with special-shaped section
KR102431650B1 (en) * 2021-12-31 2022-08-12 (주)백천정밀 Roll forming machine has an easy changeable roll

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DE2701571A1 (en) * 1977-01-15 1978-07-27 Schloemann Siemag Ag Universal rolling mill with roll changing cassette - which has wear resistant rails carrying the roll chocks
DE2845052A1 (en) * 1978-10-16 1980-04-24 Kocks Gmbh Friedrich Rapid changing of roll housings - esp. in stretch reducing mill for mfg. tubes, where roll changing can be automated
FR2534496A1 (en) * 1982-10-15 1984-04-20 Ishikawajima Harima Heavy Ind Device for replacing the rollers in a tube-rolling mill
EP0556631A1 (en) * 1992-02-19 1993-08-25 Sms Schloemann-Siemag Aktiengesellschaft Universal rolling stand
EP0557874A1 (en) * 1992-02-26 1993-09-01 DANIELI & C. OFFICINE MECCANICHE S.p.A. Universal rolling mill stand
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Publication number Priority date Publication date Assignee Title
WO2000064606A1 (en) * 1999-04-21 2000-11-02 Nakata Manufacturing Co., Ltd Method for manufacturing a pipe with a not circular cross-section and device therefor

Also Published As

Publication number Publication date
JPH08238504A (en) 1996-09-17
DE59504981D1 (en) 1999-03-11
EP0719601B1 (en) 1999-01-27
US5685188A (en) 1997-11-11
ATE176179T1 (en) 1999-02-15
DE4447397C2 (en) 2000-09-21
DE4447397A1 (en) 1996-06-27
JP3841864B2 (en) 2006-11-08

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