EP2130622B1 - Device for guiding rotating mandrel bars and hollow blocks in the area of skew rolling plants - Google Patents
Device for guiding rotating mandrel bars and hollow blocks in the area of skew rolling plants Download PDFInfo
- Publication number
- EP2130622B1 EP2130622B1 EP20090006307 EP09006307A EP2130622B1 EP 2130622 B1 EP2130622 B1 EP 2130622B1 EP 20090006307 EP20090006307 EP 20090006307 EP 09006307 A EP09006307 A EP 09006307A EP 2130622 B1 EP2130622 B1 EP 2130622B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolling
- guide
- guide rollers
- rollers
- hollow block
- 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.)
- Not-in-force
Links
- 238000005096 rolling process Methods 0.000 title claims description 47
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
- B21B25/02—Guides, supports, or abutments for mandrels, e.g. carriages or steadiers; Adjusting devices for mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
Definitions
- the invention relates to a device for guiding rotating mandrel bars and hollow blocks in the field of cross rolling mills, in particular Lochschrägwalzgerüsten in seamless tube systems, with a plurality of successively arranged in the rolling guide units, each of which has at least three, the rolling axis surrounding, engageable guide rollers whose axes of rotation parallel to Roll axis extend and wherein the individual guide units are assigned in each case in the rolling direction, rotating, separately driven transport rollers, as by the DE 10 22 540 B known.
- the guide rollers In order to reliably fulfill this management task, the guide rollers must be adjusted in the radial direction according to the diameter of the mandrel bar and the hollow block. This is done by changing the angle of attack of the guide rollers mounted on swivel arms. This achieves the least possible clearance between the lateral surfaces of mandrel bars or Hollow blocks and the guide rollers.
- the swivel arms require additional space and freedom of movement.
- the hollow block is transported axially in the outlet direction and then transported away transversely to the outlet direction.
- the linear transport is carried out by driven in the direction of rolling transport or drive rollers, which are provided in the aforementioned generic type document between the guide units on pivot levers, while so-called ejector or pivot lever lift the hollow block from the outlet and transfer for removal to a transverse conveyor.
- These transport and removal devices are arranged at a distance from the guide units.
- One from the EP 0868947 A 2 known guide device of another kind has instead of a plurality of successively arranged guide units two trained over the maximum to be rolled Luppenin as a continuous tubes guide rollers, which are each received on the shaft side in radial bearings rotatably.
- the dimension-dependent adjustment of the tubular guide rollers is carried out centrally to the roller center individually via inclined guide carriage or together about an outside pivot point.
- This guide device also requires several short guide rollers, which are pivoted from above against the long guide rollers to prevent lateral breakout of the leaking doll. After rolling, the upper short guide rollers swung out and arranged between the long guide rollers, driven pulleys are pivoted to the longitudinal transport of the doll
- the invention is therefore an object of the invention to provide a guide device of the type mentioned, which allows a rolling with significantly lower Walzguttoleranzen and consequently less waste in the finished tube.
- This object is achieved in that the transport rollers within the guide units each arranged between two lower, with respect to the roll axis vertically adjustable guide rollers and with these a triangular three-roll guide forming and also with respect to the roll axis are vertically adjustable.
- the integration of the otherwise remote from guide units arranged transport rollers in a guide unit makes it possible that the distance between two guide units significantly shortened and thus the leadership quality of mandrel and hollow block can be significantly improved.
- Both the integrated transport rollers and the two lower guide rollers are vertically adjustable with respect to the rolling axis.
- the upper guide roller can be pivoted as in known devices by a pivot axis adjustable about a fixed pivot axis to the rolling axis and away from it, while in any case, the two lower guide rollers vertically, ie moved away in a linear movement to the rolling axis or from this become.
- the inventive linear adjustment of the lower guide rollers, the transport roller can be arranged in the space between the lower guide rollers.
- the transport rollers are raised or adjusted by a suitable lifting device to the rolling axis.
- a suitable lifting device to the rolling axis.
- the vertical adjusting movement allows the angle of attack of the lower guide rollers to each other is no longer changed, so no pivotal movement of the lower guide rollers toward each other or away from each other takes place.
- the constructively once defined clearance between the two lower guide rollers can therefore be used without restriction for receiving the vertically adjustable transport roller.
- the vertical stroke of the guide rollers only the angle of attack to the object to be guided, in the range of a smallest (when guiding the mandrel bar) to a largest (when guiding the Rolling stock or hollow block) angle or angle.
- Fig. 1 1 denotes a transverse conveyor, via which blocks heated to rolling temperature are fed to a depositing channel 2 of a perforated cross rolling stand 3.
- a mandrel 4 On the outlet side of the cross rolling stand 3 is a mandrel 4, which is held in the axial direction by an abutment, not shown, and on which in the cross rolling stand 3, a hollow block 5 is rolled.
- the mandrel 4 and later the rolled hollow block 5 must be guided radially supported, since they rotate at considerable speed.
- For guiding the mandrel bar 4 and in the sequence of the hollow block 5 serve several in the rolling direction successively arranged guide units. 6
- FIGS. 2 and 3 show the example of a single guide unit 6, that this is designed as a triangular three-roller guide and each has three guide rollers 7a, 7b, 7c, which in Fig. 2 the mandrel 4 and in Fig. 3 center the hollow block 5.
- the guide roller 7a can be employed vertically or moved by means of pivoting levers and cylinders, not shown here, by a pivoting action towards the mandrel bar 4 and the hollow block 5, respectively.
- the guide rollers 7b and 7c are moved by means of lifting devices also not shown here by a vertical or linear adjustment 8 to the mandrel 4 and the hollow block 5 out respectively away.
- the guide rollers 7a, 7b, 7c are rotatably mounted on axes by means of rolling bearings, not shown, but not driven.
- a vertically adjustable in the direction of the double arrow 13 transport roller 9 is arranged, which is mounted in a lifting device, not shown here and is driven separately.
- Fig. 2 is a mandrel 4 inserted or retracted into the rolling line and the guide rollers 7a, 7b, 7c - whose closing or opening movements are coupled together via a corresponding control device - are with their lateral surfaces 10 on the mandrel 4, so that these Beginning of the rolling process is performed in the radial direction.
- the guide rollers 7 a and 7 b and 7 c take a minimum distance from each other with a correspondingly smallest angle ⁇ 1 of the two vertically adjustable lower guide rollers 7 b, 7 c to the mandrel 4. Both at the beginning and during the rolling process is the transport roller 9 in its lower basic position, without having contact with the mandrel 4.
- the hollow block 5 slides over the mandrel rod 4. If the leading end of the hollow block 5 reaches the guide units 6 in the rolling direction, the guide rollers 7a, 7b, 7c make a uniform opening or adjusting movement, the upper guide roller 7a possibly through a pivoting movement and the two lower guide rollers 7b and 7c by a vertical lifting movement of the mandrel bar 4 away.
- a circular passage is formed between the guide rollers 7a, 7b, 7c, which is initially slightly larger than the Jardindruchmesser the resulting hollow block 5.
- the guide rollers 7a, 7b, 7c make a smooth closing movement to the hollow block 5 out.
- the lateral surfaces 10 of the guide rollers 7a, 7b, 7c come circumferentially distributed to rest against the surface of the hollow block 5, whereby this is safely centered during the rolling process.
- To this hollow block guide take the guide rollers 7 a and 7 b and 7 c a farthest Distance from each other with a correspondingly largest angle ⁇ 2 of the two vertically adjustable lower guide rollers 7 b, 7 c to the hollow block. 5
- the transport roller 9 is moved vertically into its transport position, so that the hollow block 5 rests on its the radius of the hollow block 5 adapted lateral surface 11 (see. Fig. 3 ). Subsequently, the hollow block 5 is transported by means of integrated in the guide units 6 transport rollers 9 axially from the rolling line out in the downstream outlet area, where it is then stored by, for example, a pivot lever having device for conveying to a transverse conveyor 12.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Führen von rotierenden Dornstangen und Hohlblöcken im Bereich von Schrägwalzwerken, insbesondere von Lochschrägwalzgerüsten in Nahtlosrohranlagen, mit mehreren in Walzrichtung hintereinander angeordneten Führungseinheiten, von denen jede mindestens drei, die Walzachse umgebende, anstellbare Führungsrollen besitzt, deren Drehachsen sich parallel zur Walzachse erstrecken und wobei den einzelnen Führungseinheiten jeweils in Walzrichtung rotierende, separat angetriebene Transportrollen zugeordnet sind, wie durch die
Bei einem Schrägwalzwerk bzw. Lochschrägwalzwerk ist es nämlich erforderlich, den durch die Walzung rotierenden Hohlblock und die ebenfalls rotierende, den Walzdorn tragende Dornstange zu führen. Das wird mit den drei anstellbaren Führungsrollen erreicht, wobei die Führungsrollen im wesentlichen zylindrisch ausgebildet sind und mit ihren glatten Mantelflächen abwechselnd die Dornstange und den Hohlblock in radialer Richtung abstützen, so dass diese im Bereich der Walzachse gehalten werden, ohne dass ihre Rotationsbewegung behindert wird.In a slanting mill or hole-rolling mill, it is namely necessary to guide the hollow block rotating through the rolling and the likewise rotating mandrel bar carrying the rolling mandrel. This is achieved with the three engageable guide rollers, wherein the guide rollers are substantially cylindrical and with their smooth lateral surfaces alternately support the mandrel and the hollow block in the radial direction, so that they are held in the rolling axis, without their rotational movement is hindered.
Um diese Führungsaufgabe zuverlässig erfüllen zu können, müssen die Führungsrollen in radialer Richtung entsprechend dem Durchmesser der Dornstange und des Hohlblockes verstellt werden. Dies erfolgt durch eine Änderung des Anstellwinkels der dazu an Schwenkarmen gelagerten Führungsrollen. So erreicht man ein möglichst geringes Spiel zwischen den Mantelflächen von Dornstangen bzw. Hohlblöcken und den Führungsrollen. Die Schwenkarme erfordern allerdings einen zusätzlichen Bauraum und Bewegungs-Freiraum.In order to reliably fulfill this management task, the guide rollers must be adjusted in the radial direction according to the diameter of the mandrel bar and the hollow block. This is done by changing the angle of attack of the guide rollers mounted on swivel arms. This achieves the least possible clearance between the lateral surfaces of mandrel bars or Hollow blocks and the guide rollers. However, the swivel arms require additional space and freedom of movement.
Nach der Walzung, bei welcher die Führungseinheiten im Auslauf zunächst die Dornstange und dann den Hohlblock führen, wird der Hohlblock axial in Auslaufrichtung transportiert und anschließend quer zur Auslaufrichtung abtransportiert. Der Lineartransport erfolgt durch in Walzrichtung angetriebene Transport- bzw. Treibrollen, die bei der eingangs genannten, gattungsbildenden Druckschrift zwischen den Führungseinheiten auf Schwenkhebeln vorgesehen sind, während sogenannte Auswerfer bzw. Schwenkhebel den Hohlblock aus dem Auslauf heben und zum Abtransport an eine Quertransporteinrichtung überleiten. Diese Transport- und Entnahmeeinrichtungen sind beabstandet von den Führungseinheiten angeordnet. Aufgrund des konstruktiv notwendigen, relativ großen Abstandes der Führungseinheiten voneinander im Auslauf, ist eine weite Distanz zwischen den Transport- und Entnahmeeinrichtungen im Auslauf unvermeidlich, so dass die Dornstange bzw. der Hohlblock nicht optimal geführt werden kann, was mit einer erhöhten und nicht wünschenswerten Wanddickentoleranz des Walzgutes einhergeht.After the rolling, in which the guide units in the outlet initially the mandrel and then lead the hollow block, the hollow block is transported axially in the outlet direction and then transported away transversely to the outlet direction. The linear transport is carried out by driven in the direction of rolling transport or drive rollers, which are provided in the aforementioned generic type document between the guide units on pivot levers, while so-called ejector or pivot lever lift the hollow block from the outlet and transfer for removal to a transverse conveyor. These transport and removal devices are arranged at a distance from the guide units. Due to the constructively necessary, relatively large distance of the guide units from each other in the outlet, a long distance between the transport and removal devices in the outlet is inevitable, so that the mandrel or the hollow block can not be performed optimally, resulting in an increased and undesirable wall thickness tolerance associated with the rolling stock.
Eine aus der
Der Erfindung liegt daher die Aufgabe zugrunde, eine Führungsvorrichtung der eingangs genannten Art zu schaffen, die eine Walzung mit deutlich geringeren Walzguttoleranzen und dementsprechend weniger Ausschuss beim Fertigrohr ermöglicht.The invention is therefore an object of the invention to provide a guide device of the type mentioned, which allows a rolling with significantly lower Walzguttoleranzen and consequently less waste in the finished tube.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Transportrollen innerhalb der Führungseinheiten jeweils zwischen zwei unteren, in Bezug auf die Walzachse vertikal anstellbaren Führungsrollen und mit diesen eine triangelförmige Dreirollenführung bildend angeordnet und ebenfalls in Bezug auf die Walzachse vertikal anstellbar sind. Die Integration der ansonsten entfernt von Führungseinheiten angeordneten Transportrollen in einer Führungseinheit ermöglicht es, dass der Abstand zwischen zwei Führungseinheiten deutlich verkürzt und einhergehend damit die Führungsqualität von Dornstange und Hohlblock erheblich verbessert werden kann.This object is achieved in that the transport rollers within the guide units each arranged between two lower, with respect to the roll axis vertically adjustable guide rollers and with these a triangular three-roll guide forming and also with respect to the roll axis are vertically adjustable. The integration of the otherwise remote from guide units arranged transport rollers in a guide unit makes it possible that the distance between two guide units significantly shortened and thus the leadership quality of mandrel and hollow block can be significantly improved.
Sowohl die integrierten Transportrollen als auch die beiden unteren Führungsrollen sind in Bezug auf die Walzachse vertikal anstellbar. Die obere Führungsrolle kann wie bei bekannten Vorrichtungen durch einen um eine feste Schwenkachse verstellbaren Schwenkarm zur Walzachse hin bzw. von dieser weg geschwenkt werden, während auf jeden Fall die beiden unteren Führungsrollen vertikal, d.h. in einer linearen Bewegung zur Walzachse hin bzw. von dieser wegbewegt werden. Durch die erfindungsgemäße lineare Anstellung der unteren Führungsrollen kann die Transportrolle im Freiraum zwischen den unteren Führungsrollen angeordnet werden.Both the integrated transport rollers and the two lower guide rollers are vertically adjustable with respect to the rolling axis. The upper guide roller can be pivoted as in known devices by a pivot axis adjustable about a fixed pivot axis to the rolling axis and away from it, while in any case, the two lower guide rollers vertically, ie moved away in a linear movement to the rolling axis or from this become. The inventive linear adjustment of the lower guide rollers, the transport roller can be arranged in the space between the lower guide rollers.
Nach der Walzung werden die Transportrollen über eine geeignete Hubeinrichtung zur Walzachse hin angehoben bzw. verstellt. Sobald ein für das jeweilige Kaliber des Hohlblockes voreingestelltes Transportmaß erreicht ist, kann der gewalzte Hohlblock mittels der jeweils einzeln angetriebenen Transportrollen in Auslaufrichtung des Schrägwalz- bzw. Lochschrägwalzwerkes allseitig geführt transportiert werden.After the rolling, the transport rollers are raised or adjusted by a suitable lifting device to the rolling axis. Once a preset for the respective caliber of the hollow block Transportmaß is reached, the rolled hollow block can be transported on all sides guided by means of each individually driven transport rollers in the outlet direction of the oblique roll or hole rolling mill.
Die vertikale Anstellbewegung ermöglicht, dass der Anstellwinkel der unteren Führungsrollen zueinander nicht mehr verändert wird, also keine Schwenkbewegung der unteren Führungsrollen aufeinander zu bzw. voneinander weg stattfindet. Der konstruktiv einmal festgelegte Freiraum zwischen den beiden unteren Führungsrollen kann daher uneingeschränkt zur Aufnahme der vertikal anstellbaren Transportrolle genutzt werden. Abhängig von den Abmessungen des zu führenden Gegenstandes (Dornstange oder Hohlblock) ändert sich mit dem vertikalen Hub der Führungsrollen lediglich der Anstellwinkel zu dem zu führenden Gegenstand, und zwar im Bereich eines kleinsten (bei Führung der Dornstange) bis zu einem größten (bei Führung des Walzgutes bzw. Hohlblocks) Winkels bzw. Winkel.The vertical adjusting movement allows the angle of attack of the lower guide rollers to each other is no longer changed, so no pivotal movement of the lower guide rollers toward each other or away from each other takes place. The constructively once defined clearance between the two lower guide rollers can therefore be used without restriction for receiving the vertically adjustable transport roller. Depending on the dimensions of the object to be guided (mandrel bar or hollow block) changes with the vertical stroke of the guide rollers only the angle of attack to the object to be guided, in the range of a smallest (when guiding the mandrel bar) to a largest (when guiding the Rolling stock or hollow block) angle or angle.
Weitere Merkmale und Einzelheiten der Erfindung ergeben sich aus den Ansprüchen und der nachfolgenden Beschreibung eines in den Zeichnungen dargestellten Ausführungsbeispiels der Erfindung. Es zeigen:
- Fig. 1
- in der Draufsicht ein Schrägwalzgerüst mit im Auslauf mehreren hinterein- ander angeordneten Führungseinheiten, schematisch dargestellt;
- Fig. 2
- in stark schematisierter Darstellung als Einzelheit eine Führungseinheit mit darin zentrierter Domstange, in Walzrichtung gesehen; und
- Fig. 3
- in stark schematisierter Darstellung als Einzelheit die Führungseinheit ge- mäß
Fig. 2 mit demgegenüber darin zentriertem Hohlblock, in Walzrichtung gesehen.
- Fig. 1
- in the plan view, a cross rolling stand with a plurality of successively arranged guide units in the outlet, shown schematically;
- Fig. 2
- in a highly schematic representation as a detail of a guide unit with centered therein dome rod, seen in the rolling direction; and
- Fig. 3
- in a highly schematic representation as a detail of the guide unit according to
Fig. 2 with the hollow block centered in it, seen in the rolling direction.
In
Auf der Auslaufseite des Schrägwalzgerüstes 3 befindet sich eine Dornstange 4, die in axialer Richtung von einem nicht dargestellten Widerlager gehalten wird und auf welcher im Schrägwalzgerüst 3 ein Hohlblock 5 ausgewalzt wird.On the outlet side of the cross rolling stand 3 is a mandrel 4, which is held in the axial direction by an abutment, not shown, and on which in the cross rolling stand 3, a
Die Dornstange 4 und später der gewalzte Hohlblock 5 müssen radial abgestützt geführt werden, da sie mit beachtlicher Drehzahl umlaufen. Zur Führung der Dornstange 4 und in der Folge des Hohlblockes 5 dienen mehrere in Walzrichtung hintereinander angeordnete Führungseinheiten 6.The mandrel 4 and later the rolled
Die
Die Führungsrollen 7a, 7b, 7c sind mit Hilfe von nicht dargestellten Wälzlagern auf Achsen drehbar gelagert, jedoch nicht angetrieben.The
Zwischen den unteren beiden Führungsrollen 7b und 7c ist eine in Richtung des Doppelpfeils 13 vertikal verstellbare Transportrolle 9 angeordnet, welche in einer hier nicht dargestellten Hubeinrichtung gelagert ist und separat angetrieben wird.Between the lower two
In
Mit fortschreitendem Walzvorgang schiebt sich der Hohlblock 5 über die Dornstange 4. Erreicht die in Walzrichtung voreilende Stirnseite des Hohlblocks 5 die Führungseinheiten 6, vollziehen die Führungsrollen 7a, 7b, 7c eine gleichmäßige Offnungs- bzw. Anstellbewegung, die obere Führungsrolle 7a dabei ggf. durch eine Schwenkbewegung und die beiden unteren Führungsrollen 7b und 7c durch eine vertikale Hubbewegung von der Dornstange 4 weg.With the progress of the rolling process, the
Somit wird zwischen den Führungsrollen 7a, 7b, 7c ein kreisförmiger Durchlass gebildet, der zunächst geringfügig größer ist als der Aussendruchmesser des entstehenden Hohlblockes 5. Sobald der Hohlblock 5 sich innerhalb der Führungseinheit 6 befindet, vollziehen die Führungsrollen 7a, 7b, 7c eine gleichmäßige Schließbewegung zu dem Hohlblock 5 hin. Die Mantelflächen 10 der Führungsrollen 7a, 7b, 7c kommen umfangsverteilt zur Anlage an der Oberfläche des Hohlblockes 5, wodurch dieser während des Walzvorgangs sicher zentriert wird. Zu dieser Hohlblockführung nehmen die Führungsrollen 7 a sowie 7 b und 7 c einen weitesten Abstand zueinander ein mit einem entsprechend größten Anstellwinkel α 2 der beiden vertikal anstellbaren unteren Führungsrollen 7 b, 7 c zum Hohlblock 5.Thus, a circular passage is formed between the
Am Ende eines jeden Walzvorgangs wird die Transportrolle 9 vertikal in ihre Transportstellung gefahren, so dass der Hohlblock 5 auf ihrer dem Radius des Hohlblockes 5 angepaßten Mantelfläche 11 aufliegt (vgl.
- 11
- QuerfördereinrichtungCross conveyor
- 22
- Einlegerinnedepositors Inne
- 33
- SchrägwalzgerüstSkew rolling mill
- 44
- Dornstangemandrel
- 55
- Hohlblockhollow block
- 66
- Führungseinheitenguide units
- 7a,b,c7a, b, c
- Führungsrollenguide rollers
- 88th
- vertikale Verstellungvertical adjustment
- 99
- Transportrolletransport roller
- 1010
- Mantelfläche FührungsrollenLateral surface guide rollers
- 1111
- Mantelfläche TransportrolleLateral surface transport roller
- 1212
- QuertransporteinrichtungCross-transport device
- 1313
- Doppelpfeil (vertikale Verstellung der Transportrolle)Double arrow (vertical adjustment of the transport roller)
-
α 1
α 1 - kleinster Anstellwinkelsmallest angle of attack
-
α 2
α 2 - größter Anstellwinkellargest angle of attack
Claims (1)
- A device for guiding rotating mandrel bars (4) and hollow billets (5) in the field of cross rolling mills, particularly cross rolling piercing mills in seamless tube production plants, comprising multiple guide units (6) arranged consecutively in the direction of rolling, each of which is equipped with at least three adjustable guide rollers (7a, 7b, 7c) surrounding the rolling axis and extending parallel to the rolling axis, and wherein driven conveyor rollers (9), each rotating separately in the direction of rolling, are assigned to the individual guide units,
characterized in that
the conveyor rollers (9) are each arranged between two lower guide rollers (7b, 7c) that are vertically adjustable relative to the rolling axis so as to form a triangular three-roller guide therewith, and are also adjustable vertically relative to the rolling axis within the guide units (6).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810028348 DE102008028348B4 (en) | 2008-06-07 | 2008-06-07 | Device for guiding rotating mandrel bars and hollow blocks in the area of cross rolling mills |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2130622A1 EP2130622A1 (en) | 2009-12-09 |
EP2130622B1 true EP2130622B1 (en) | 2012-05-30 |
Family
ID=41057326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20090006307 Not-in-force EP2130622B1 (en) | 2008-06-07 | 2009-05-09 | Device for guiding rotating mandrel bars and hollow blocks in the area of skew rolling plants |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2130622B1 (en) |
DE (1) | DE102008028348B4 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102284484A (en) * | 2011-08-31 | 2011-12-21 | 太原重工股份有限公司 | Mandrel pre-rotation mechanism of skew rolling mill |
CN104148414B (en) * | 2014-08-21 | 2016-01-06 | 湖北理工学院 | A kind of three-roller guiding devices for three-roll pipe mill outlet |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1022540B (en) * | 1953-03-23 | 1958-01-16 | Mannesmann Meer Ag | Device for opening several mandrel bar guides in tube rolling mills that work with mandrels |
IT1086314B (en) * | 1977-09-19 | 1985-05-28 | Innocenti Santeustacchio Spa | SUPPORT CAGE AND SPINDLE GUIDE IN CONTINUOUS LAMINATE WITH HOLDED SPINDLE |
DE3715803A1 (en) * | 1987-05-12 | 1988-11-24 | Kocks Technik | DEVICE FOR THE RADIAL GUIDE OF ROTATING THORN BARS AND TUBE TUBES |
DE3833375C1 (en) * | 1988-09-28 | 1989-05-18 | Mannesmann Ag, 4000 Duesseldorf, De | |
DE19714300A1 (en) * | 1997-03-24 | 1998-10-01 | Mannesmann Ag | Device for guiding a billet |
-
2008
- 2008-06-07 DE DE200810028348 patent/DE102008028348B4/en not_active Expired - Fee Related
-
2009
- 2009-05-09 EP EP20090006307 patent/EP2130622B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
DE102008028348A1 (en) | 2009-12-10 |
DE102008028348B4 (en) | 2010-05-27 |
EP2130622A1 (en) | 2009-12-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3110577B2 (en) | Ring rolling device | |
EP3124131B1 (en) | Device and a method for curing and straightening a bar-shaped semi-finished product | |
DE202018102903U1 (en) | Equipment design and structure of full support of the mandrel bar on the inlet and outlet side of the cross rolling mill for hot rolling of seamless steel tubes | |
EP2318159B1 (en) | Method for producing a seamless steel pipe and rolling mill for performing the method | |
EP1166907B1 (en) | Method of rolling tube blanks in a planetary skew rolling mill | |
EP2130622B1 (en) | Device for guiding rotating mandrel bars and hollow blocks in the area of skew rolling plants | |
EP2429731B1 (en) | Chuck for a cold-pilgering mill | |
DE1527608A1 (en) | Tube rolling mill | |
EP2488313B1 (en) | Winding device, roller system having a winding device and related method | |
DE102010010697A1 (en) | Rolling mill for manufacturing elongated product e.g. pipe, has bearing housings arranged on guide bolts in frame, where one of bolts has adjusting device for adjusting correction roller angle in plane perpendicular to roller center line | |
DE602004001281T2 (en) | Method and apparatus for slowing down and temporarily storing hot-rolled products | |
DE3533119C2 (en) | ||
DE2502651A1 (en) | LEVELING MACHINE | |
EP2067542B1 (en) | Method and rolling mill to produce wireless steel pipes | |
DE102008056988A1 (en) | Seamless steel pipe producing method for rolling mill, involves providing inner tool in interior of pipe blank, where rotation movement opposite to rotary movement of pipe blank is imposed to piercer | |
DE2500369C3 (en) | Device for feeding and removing mandrels in tube rolling mills | |
EP0016422A1 (en) | Straightening machine for thin-walled pipes | |
EP0868947B1 (en) | Device for guiding a loop | |
DE19719312C2 (en) | Method and device for the production of, in particular, small metal balls from a cylindrical strand material | |
EP2121208B1 (en) | Method and device for rolling a product to be rolled in a rolling mill having a cross-rolling mill | |
EP1500441B1 (en) | Rolling mill for the fabrication of seamless tubes | |
DE634385C (en) | Pilgrim's step rolling mill | |
DE10126411B4 (en) | A method for rolling tube billets in a planetary cross rolling mill and apparatus for feeding tube billets into a planetary cross rolling mill | |
DE1123641B (en) | Device for the manufacture of screw sutures | |
DE102021131974A1 (en) | Chill roll station and method for cooling a material web in such a chill roll station |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): 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 SE SI SK TR |
|
17P | Request for examination filed |
Effective date: 20100507 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: B21B 25/02 20060101AFI20111221BHEP |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): 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 SE SI SK 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: 559811 Country of ref document: AT Kind code of ref document: T Effective date: 20120615 |
|
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: 502009003636 Country of ref document: DE Effective date: 20120726 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20120530 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D Effective date: 20120530 |
|
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: 20120530 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: 20120930 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: 20120530 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: 20120830 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: 20120530 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: 20120530 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20120530 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: 20120530 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: 20120530 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: 20120831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20120530 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: 20120530 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: 20120530 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: 20120530 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: 20120530 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: 20120530 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20121001 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: 20120530 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: 20120530 |
|
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 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES 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: 20120910 |
|
26N | No opposition filed |
Effective date: 20130301 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502009003636 Country of ref document: DE Effective date: 20130301 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20120830 |
|
BERE | Be: lapsed |
Owner name: SMS MEER G.M.B.H. Effective date: 20130531 |
|
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: 20120530 |
|
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: 20130509 |
|
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: 20130531 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130531 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20131203 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130531 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20140131 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502009003636 Country of ref document: DE Effective date: 20131203 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130509 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130509 |
|
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: 20130531 |
|
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: 20120530 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR 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: 20120530 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 559811 Country of ref document: AT Kind code of ref document: T Effective date: 20140509 |
|
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: 20090509 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130509 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: 20120530 |
|
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: 20140509 |