EP2488313A1 - Aufwickelvorrichtung, walzanlage mit einer aufwickelvorrichtung und zugehöriges verfahren - Google Patents
Aufwickelvorrichtung, walzanlage mit einer aufwickelvorrichtung und zugehöriges verfahrenInfo
- Publication number
- EP2488313A1 EP2488313A1 EP10759864A EP10759864A EP2488313A1 EP 2488313 A1 EP2488313 A1 EP 2488313A1 EP 10759864 A EP10759864 A EP 10759864A EP 10759864 A EP10759864 A EP 10759864A EP 2488313 A1 EP2488313 A1 EP 2488313A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- axis
- rollers
- bending device
- billet
- 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
Links
- 238000004804 winding Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005452 bending Methods 0.000 claims abstract description 61
- 238000005096 rolling process Methods 0.000 claims description 70
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
- B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
Definitions
- the present invention relates to a take-up device for a pipe produced in a rolling mill and to a rolling mill with such a take-up device and to a method for winding a finished pipe.
- an extended hollow cylindrical blank is usually cold reduced in the fully cooled state by compressive stresses.
- the blank is formed into a tube with a defined reduced external diameter and a defined wall thickness.
- the most common pipe reduction method is known as cold pilgering, the blank being called billet.
- the billet is rolled over a calibrated, i. the inner diameter of the finished tube, rolling mandrel pushed while calibrated from the outside of two calibrated, i. comprising the outer diameter of the finished tube defining rollers and rolled in the longitudinal direction over the rolling mandrel.
- the billet undergoes incremental advance toward or beyond the mandrel as the rolls are reciprocated horizontally over the mandrel and thus over the billet.
- the horizontal movement of the rollers is predetermined by a rolling stand on which the rollers are rotatably mounted.
- the roll stand is reciprocated in known Rollpilgeranlagen by means of a crank drive in a direction parallel to the rolling mandrel, while the rollers themselves receive a rotational movement through a fixed relative to the rolling rack, engage firmly connected to the roll axes gears.
- the feed of the billet over the mandrel is carried out by means of a feed tension slide, which allows a translational movement in a direction parallel to the axis of the rolling mandrel.
- the superimposed conically calibrated rollers in the rolling stand rotate counter to the feed direction of the feed tension slide.
- the so-called vocational mouth formed by the rollers captures the billet and the rollers press from the outside a small material shaft from the smoothing caliber of the rollers and the rolling mandrel to the intended wall thickness is stretched until the idling caliber of the rollers releases the finished tube.
- the roll stand moves with the rolls attached thereto against the feed direction of the billet.
- the billet is advanced by a further step onto the rolling mandrel, while the rolls with the rolling stand return to their horizontal starting position. At the same time, the billet undergoes a rotation about its axis to achieve a uniform shape of the finished tube.
- a uniform wall thickness and roundness of the pipe as well as uniform inside and outside diameters are achieved.
- the finished tubes in the prior art Due to the complex movements that run the billet or the finished tube, which consist of a superposition of rotational and translational movements, the finished tubes in the prior art have only completely left the rolling mill, before, for example by winding, in a transportable state can be brought.
- a winding device for a tube made in a rolling mill with a bending device for bending the tube so that it can be spirally wound around a first axis and placed in a holding position, wherein the bending device is perpendicular to the first axis substantially second axis is pivotally received on the Garge- stell.
- Such a device makes it possible to pick up the finished tube from the rolling mill and to bend it so that it can be wound up on a helical path.
- This arrangement allows a considerable time saving in the production of steel tubes that are dimensioned so that they can be wound up, since the expiring from the rolling mill tube can already be wound while introduced in the same strand still in the vocational's stool and formed there.
- the device according to the invention allows a considerable space saving for the rolling mill as such, since in the production of the tube not the entire strand must first run out of the rolling stand on its full length before it can be wound or shot.
- the core of the winding device according to the invention is that the bending device is mounted pivotably about an axis. In this way, the bending device can Swinging movement, which run the tube or the billet driven during rolling by the feed tension slide, understand and the tube can be wound without twisting. Without a corresponding pivotable mounting of the bending device, there would be a twisting of the tube during winding and an associated significant loss of quality in the finished tube.
- the second axis about which the bending device is pivotably received on the holding frame is in one embodiment parallel to the axis of symmetry of the finished pipe leaving the rolling stand, and preferably the second pivoting axis coincides with the axis of symmetry of the finished pipe leaving the rolling mill stand.
- the bending device is driven by a motor to pivot about the second axis.
- a motor drive largely prevents the tube from undergoing torsional stresses when it is wound up.
- the bending device has at least three rollers which can be rotated about an axis of rotation, wherein the axes of rotation are arranged substantially parallel to the first axis and wherein at least two of the axes of rotation have a distance from the first axis which is different from each other, so that in operation of the device, the tube is guided between two rollers on a first side and a roller on another side.
- This arrangement of the rollers of the bending device allows a continuous bending of the tube and thus a winding about the first axis.
- two rollers have a greater distance from the first axis than the third roller arranged between them. The radius of curvature which the bending device imposes on the finished tube then depends on the difference between the distances between the first and the second roller and the third roller from the first axis.
- the difference of the distances from the first axis can be adjusted such that the pipe can run freely between the rolls, whereas only then is the difference between the distances of the rolls is adjusted by the first axis so that the roller, which is closer to the first axis, causes a curvature of the tube.
- at least one of the rollers of the bending device is rotatably driven by a motor.
- a motor drive prevents at least one of the rollers of the bending device, that the tube during the winding on a compressive or tensile stresses experiences in the longitudinal direction.
- the holding frame is designed so that it is movable in a direction substantially parallel to the second axis.
- the winding device or its bending device can track the translational movement of the tube in its longitudinal direction during rolling and the winding takes place essentially free of the influences of the forces of the feed during rolling.
- the holding frame is also driven by a motor.
- the rolling mill is a cold pilger rolling mill with two rolls, wherein the winding device is arranged in the feed direction of the pipe behind the rolls or the roll stand, on which the rolls are accommodated.
- the rolling mill on two rollers and at least one feed chuck, wherein the feed chuck receives a billet during operation of the rolling mill and pushes them between the rollers, wherein the feed chuck is designed to pivot and the doll receives about its longitudinal axis pivotally and wherein the Roller means comprises a controller which is adapted to synchronously pivot the feed chuck and the bending device during operation of the device.
- the bending device is accommodated on the holding frame so as to be pivotable about the second axis by a motor. This "electronic wave" between the feed tension slide and the take-up device allows longitudinally nearly distortion-free winding of the finished tube.
- the rolling mill has a control that is set up so that during operation of the device in a first phase it drives at least one of the rollers of the bending device so that they pull the holding frame with the bending device against the feed direction of the pipe and in a second phase at least one role of Bending device fixed so that the holding frame with the bending device of the tube in the feed direction of the tube is movable.
- a control that is set up so that during operation of the device in a first phase it drives at least one of the rollers of the bending device so that they pull the holding frame with the bending device against the feed direction of the pipe and in a second phase at least one role of Bending device fixed so that the holding frame with the bending device of the tube in the feed direction of the tube is movable.
- the winding process is interrupted and at least one of the rollers fixes the bending device to the tube to be wound up.
- the holding frame is then moved in the direction of advance to the other end point of its translational movement, and the reeling operation of the reeling device begins again.
- a method for winding a tube made in a rolling mill comprising the steps of: bending the tube in a bending device so that it can be spirally wound around a first axis, and pivoting the bending device over a second axis substantially perpendicular to the first axis.
- Such a method is used in one embodiment for producing a coiled tube, which additionally comprises the steps of feeding a billet into a rolling mill and forming the billet into a finished tube.
- the billet is formed by rolling, wherein the billet is pivoted during forming about its longitudinal axis, wherein the pivoting of the billet and the gift of the bending device takes place synchronously.
- the bending device has rollers which engage with the tube, wherein in a first phase at least one of the rollers is driven so that they pull the bending device on the pipe against the feed direction of the pipe and wherein in a second phase at least one roller is fixed so that the bending device is moved by the tube in the feed direction of the tube.
- Figure 1 shows a side view of the schematic structure of a cold pilger rolling mill with a winding device according to an embodiment of the present invention.
- FIG. 2 shows a detailed side view of the winding device according to the invention from FIG. 1.
- FIG 1 the structure of a cold pilger rolling mill according to the invention is shown schematically in a side view.
- the rolling mill consists of a rolling stand 1 with rollers 2, 3 a calibrated rolling mandrel 4 and a feed tensioning slide 5.
- the cold pilger rolling mill on a linear motor 6 as a direct drive for the feed clamping slide 5.
- the linear motor 6 is constructed from a rotor 16 and a stator 17.
- the billet 1 1 undergoes a gradual feed in the direction of the rolling mandrel 4 to or beyond this, while the rollers 2, 3 rotating over the mandrel 4 and thus over the billet 1 1 horizontally be moved back and forth.
- the horizontal movement of the rollers 2, 3 is predetermined by a roll stand 1, on which the rollers 2, 3 are rotatably mounted.
- the roll stand 1 is reciprocated by means of a crank drive 21 in a direction parallel to the rolling mandrel 4, while the rolls 2, 3 themselves receive their rotary movement through a toothed rack (not shown) fixed relative to the rolling stand 1 into which they are fixed engage the roller axes connected gears.
- the feed of the billet 1 1 on the mandrel 4 is carried out by means of the feed tension slide 5 which allows a translational movement in a direction parallel to the axis of the rolling mandrel.
- the rolling mill 1 arranged one above the other conically calibrated rollers 2, 3 rotate counter to the feed direction of the feed tension slide 5.
- the so-called crawl mouth formed by the rollers detects the billet 1 1 and the rollers 2, 3 press from the outside a small material shaft, from a Smoothing caliber of the rollers 2, 3 and the rolling mandrel 4 is stretched to the intended wall thickness until an idling caliber of the rollers 2, 3 releases the finished tube.
- the roll stand 1 moves with the rollers 2, 3 attached thereto counter to the feed direction of the billet 11.
- the billet 1 1 after reaching the idling caliber of the rollers 2, 3 is advanced by a further step on the rolling mandrel 4, while the rollers 2, 3 return to the rolling mill 1 in its horizontal starting position.
- the billet 1 1 undergoes a rotation about its axis 22 to achieve a uniform shape of the finished tube.
- the winding device 24 which is shown schematically in FIG. 1, consists of a holding frame 25 and a bending device 26.
- the bending device 26 has three rollers 27, 28, 29, which are all motor-driven in the illustrated embodiment and frictionally engage the finished tube 23 into engagement.
- the three rollers 27, 28, 29 bend the finished tube 23 around an imaginary axis 30 around.
- the axis 30 is substantially perpendicular to the axis of symmetry 22 of the finished tube 23, as it leaves the rollers 2, 3.
- the pair of rollers 27, 28 is disposed over the finished tube 23, the third roller 29 is disposed below the finished tube 23 and ensures that the finished tube 23 in the bending device 26 is curved.
- the bending radius of the tube 23 depends on the difference between the distances of the roller 29 from the axis 30 and the roller pair 27, 28 from the axis 30.
- the bending device 26 and the three rollers 27, 28, 29 are pivotally mounted about the axis 22 on the holding frame 25.
- the pivoting movement of the rollers 27, 28, 29 about the axis 22 by means of a motor drive.
- the pivoting movement of the bending device 26 with the rollers 27, 28, 29 via a controller with the pivoting movement of the billet, which is impressed on the billet from the feed tension slide 5, synchronized.
- the finished tube 23 can be wound up without torsional stresses during rolling.
- the holding frame 25 is mounted on a rail 31 so that it can perform a translational movement in and against the feed direction of the billet 1 1 and the tube 23.
- the translational movement of the holding frame 25 does not take place via a separate motor drive but is effected in one direction by the advance of the billet 11 or of the finished tube 23 and in the other direction by a motor-driven rotary movement of the rollers 27, 28, 29.
- the winding process begins while the billet 11 or the finished pipe 23 continues to feed.
- the rollers 27, 28, 29 are driven so that they pull the holding frame 25 on the finished tube 23 in the direction of the roll stand 1 and thereby curving the finished tube 23 and wind up.
- the rotational movement of the rollers 27, 28, 29 stopped and these fix the finished tube 23 relative to the holding frame 25.
- the holding frame 25 now begins in the feed direction, driven by the feed of the finished Tube 23, again in the direction of the first stop 32 to move.
- the stop 32 again starts a phase of winding.
- the winding device 24 is shown in detail from Figure 1.
- identical elements are denoted by identical reference numerals.
- the holding frame 25 has two bearings 34, 35 for receiving a pivot axis for the bending device 26.
- the three bending rollers 27, 28, 29 can be seen, which form the bending device 26 driven by a motor.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009045640A DE102009045640A1 (de) | 2009-10-13 | 2009-10-13 | Aufwickelvorrichtung |
PCT/EP2010/064111 WO2011045165A1 (de) | 2009-10-13 | 2010-09-24 | Aufwickelvorrichtung, walzanlage mit einer aufwickelvorrichtung und zugehöriges verfahren |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2488313A1 true EP2488313A1 (de) | 2012-08-22 |
EP2488313B1 EP2488313B1 (de) | 2013-07-17 |
Family
ID=43216272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10759864.1A Active EP2488313B1 (de) | 2009-10-13 | 2010-09-24 | Aufwickelvorrichtung, walzanlage mit einer aufwickelvorrichtung und zugehöriges verfahren |
Country Status (4)
Country | Link |
---|---|
US (1) | US9233406B2 (de) |
EP (1) | EP2488313B1 (de) |
DE (1) | DE102009045640A1 (de) |
WO (1) | WO2011045165A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013114578A1 (de) | 2013-12-19 | 2015-06-25 | Sandvik Materials Technology Deutschland Gmbh | Glühofen und Verfahren zum Glühen eines Strangs aus Stahl |
DE102016106035A1 (de) * | 2016-04-01 | 2017-10-05 | Sandvik Materials Technology Deutschland Gmbh | Kaltpilgerwalzanlage und Verfahren zum Herstellen eines Rohres |
DE102016106034A1 (de) | 2016-04-01 | 2017-10-05 | Sandvik Materials Technology Deutschland Gmbh | Kaltpilgerwalzanlage und Verfahren zum Herstellen eines Rohrs |
CN109967523A (zh) * | 2017-12-28 | 2019-07-05 | 广州倬粤动力新能源有限公司 | 一种环保碳金水平电池锌线生产装置 |
CN115318828B (zh) * | 2022-09-02 | 2023-10-27 | 张家港华裕有色金属材料有限公司 | 一种用于冷轧金属管的轧制方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3858829A (en) * | 1969-04-21 | 1975-01-07 | Bell & Howell Co | Cartridge for a coil of flexible strip material |
DD128573A1 (de) * | 1976-12-07 | 1977-11-23 | Gerhard Wiegel | Synchronaufwickelvorrichtung fuer kaltgepilgerte rohre |
SU751459A1 (ru) | 1977-05-10 | 1980-07-30 | Электростальский Завод Тяжелого Машиностроения | Способ холодной прокатки труб |
DE3146284C2 (de) * | 1981-11-19 | 1985-10-31 | Mannesmann AG, 4000 Düsseldorf | Verfahren zum Abführen von kaltgewalzten Rohren, insbesondere großer Längen |
JPS59206117A (ja) | 1983-05-10 | 1984-11-21 | Nippon Steel Corp | 管棒の巻取装置 |
US5351515A (en) | 1993-01-19 | 1994-10-04 | Sandvik Special Metals Corporation | Apparatus and method for reducing the diameter of a cylindrical workpiece |
DE4344942A1 (de) * | 1993-12-27 | 1995-06-29 | Mannesmann Ag | Vorrichtung zum Abführen von kaltgewalzten Rohren hinter einem Kaltpilgerwalzwerk |
DE19831111A1 (de) * | 1998-07-11 | 2000-01-13 | Km Europa Metal Ag | Verfahren zur Erzeugung eines zu einem Coil wickelbaren Metallbands und Horizontal-Bandgießanlage zur Durchführung des Verfahrens |
JP4591908B2 (ja) * | 2003-12-15 | 2010-12-01 | 臼井国際産業株式会社 | パイプの曲げ加工装置 |
DE102007013902A1 (de) * | 2007-03-20 | 2008-09-25 | Universität Dortmund | Vorrichtung zum Profilbiegen |
-
2009
- 2009-10-13 DE DE102009045640A patent/DE102009045640A1/de not_active Withdrawn
-
2010
- 2010-09-24 EP EP10759864.1A patent/EP2488313B1/de active Active
- 2010-09-24 US US13/499,981 patent/US9233406B2/en active Active
- 2010-09-24 WO PCT/EP2010/064111 patent/WO2011045165A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2011045165A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2011045165A1 (de) | 2011-04-21 |
EP2488313B1 (de) | 2013-07-17 |
US9233406B2 (en) | 2016-01-12 |
DE102009045640A1 (de) | 2011-04-14 |
US20120272706A1 (en) | 2012-11-01 |
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