EP2129479A1 - Method and device for winding hot-rolled strip - Google Patents

Method and device for winding hot-rolled strip

Info

Publication number
EP2129479A1
EP2129479A1 EP08734878A EP08734878A EP2129479A1 EP 2129479 A1 EP2129479 A1 EP 2129479A1 EP 08734878 A EP08734878 A EP 08734878A EP 08734878 A EP08734878 A EP 08734878A EP 2129479 A1 EP2129479 A1 EP 2129479A1
Authority
EP
European Patent Office
Prior art keywords
hot strip
pressing device
winding
strip
coiler mandrel
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
EP08734878A
Other languages
German (de)
French (fr)
Other versions
EP2129479B1 (en
Inventor
Heinrich Röse
Olaf-Norman Jepsen
Heinz Niehues
Heinz Adolf MÜLLER
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.)
SMS Siemag AG
Original Assignee
SMS Siemag 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 SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP2129479A1 publication Critical patent/EP2129479A1/en
Application granted granted Critical
Publication of EP2129479B1 publication Critical patent/EP2129479B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B21C47/06—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
    • B21C47/063—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum with pressure rollers only
    • 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
    • B21C47/06—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
    • 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
    • B21C47/10—Winding-up or coiling by means of a moving guide
    • B21C47/14—Winding-up or coiling by means of a moving guide by means of a rotating guide, e.g. laying the material around a stationary reel or drum
    • 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
    • B21C47/045—Winding-up or coiling on or in reels or drums, without using a moving guide in rotating drums

Definitions

  • the invention relates to a method for winding hot strip, with
  • the invention further relates to a device for winding hot strip.
  • Hot strip reels are arranged at the end of hot strip mills and have the function to wind hot strip after rolling into coils.
  • the tape is wound up under tension to produce a sufficiently tightly wound waistband and to avoid cracking of the waistband after the finished winding.
  • the tension is also necessary to bend the band around the coiler mandrel and thus plastically deform. Especially with thick bands, large tensile forces are necessary to overcome the plastic bending moment.
  • the tape is guided by a driver consisting of an upper drive roller and a lower drive roller and transported to a coiler mandrel.
  • the band is wound around the mandrel with the assistance of pressure rollers and a collar is formed, which is drawn from the reel dome after the tape has been completely wound up.
  • a predetermined tension in the belt is set between the driver and the coiler mandrel.
  • EP 0 469 483 discloses hot strip reels in which the strip is pressed against a mandrel by four pressure rollers.
  • JP 58 058 931 A discloses a reel in which the band to be wound is pressed against a mandrel by three adjustable pressure rollers. Every spinning roller is pivoted about its own pivot point by means of its own hydraulic cylinder.
  • DE 24 14 482 B2 proposes to reduce the thickness of the tape at the beginning of the tape by at least 20%.
  • the beginning of the strip is thus provided with a thickness which allows a complete application of the strip beginning to the mandrel and the first windings. After the first windings are frictionally connected to each other or lie on top of each other, the thickness of the tape is adjusted and increased the specifications.
  • Such a procedure is also disclosed in DE 24 14 475 A1.
  • the invention is therefore based on the object to provide a method by which a rolled strip with strip thicknesses of 7 mm and more, low winding temperatures and higher-strength grades such as tube material when winding to a covenant from the beginning completely on the coiler mandrel and subsequently completely to the already wound coils of the federal government is applied. Furthermore, a device for winding hot strip to be specified.
  • the hot strip By pre-bending the hot strip is firstly achieved that the hot strip from the beginning of the winding completely rests on the reel mandrel or the subsequent turns and secondly, a winding with a lower strip tension is possible because the hot strip is not only deformed by the pressing devices, but in addition through the pre-bending device.
  • the invention also relates to a device for winding hot strip, with
  • a reel mandrel at least one first pressing device
  • At least a second pressing device wherein the hot strip is pressed by the first pressing device and the second pressing device to the coiler mandrel, wherein between the first pressing device and the second pressing device Vorbiegevorrich- device is arranged, which is in contact with the hot strip on the inner side of the winding and the hot strip radially outwardly, away from the coiler mandrel, deformed.
  • the deformation takes place such that the hot strip receives a radius which corresponds to the radius of the coiler mandrel or is slightly smaller.
  • the hot strip is from the beginning of Aufwickeins on the coiler mandrel or is pressed due to the bias of the slightly smaller radius completely by the pressure devices to the coiler mandrel.
  • a controller / controller for winding hot strip is designed so that a Vorbiegevortechnisch arranged between the first and the second pressing device is moved away from the coiler mandrel or to the coiler mandrel that, depending on the collar diameter, the thickness of the hot strip, the Quality of the hot strip and / or the temperature of the hot strip a concern of the hot strip at the beginning of Aufwickeins on the coiler mandrel is always given.
  • the Vorbiegevortechnisch is movable both from the coiler mandrel and the reel dome out.
  • the distance of the Vorbiegevoroplasty to the first pressing device and the second pressing device can be changed.
  • the Vorbiegevoroplasty is equipped with a first pulling or pushing device that moves the Vorbiegevortechnische to the coiler mandrel or away from her. At least one second pulling or pushing device is arranged so that the pre-bending device is moved towards or away from the first pressing device or the second pressing device. The respective position of the pre-bending device to the coiler mandrel, the first pressing device and the second pressing device is dependent on the thickness of the hot strip, the quality of the hot strip and the temperature of the hot strip.
  • control / regulation provides that, instead of the position of the pre-bending device, the tensile force during winding up of the bandes is considered.
  • known devices are used to determine the strip tension and, depending on the determined values, the Vorbiegevorraum is controlled / regulated.
  • Figure 1 is a side view of a hot strip reel according to the prior art.
  • FIG. 2 shows a side view of a hot strip reel according to the invention
  • Fig. 3 shows the control scheme of the device.
  • hot strip 1 shows a side view of a known device for winding hot strip 1 is shown. That coming from a roll stand, not shown, hot strip 1 is carried out between an upper drive roller 2 and a lower drive roller 3 and transported from there to a coiler mandrel 4. For pressing the hot strip 1 to the coiler mandrel 4 a plurality of pressing devices 7, 8, 9 are arranged around this. When winding a hot strip 1 of higher-strength steel grades and / or strip thickness of 7mm or more, the hot strip 1 does not apply directly to the reel mandrel 4. A frictional engagement between the coiler mandrel 4 and hot strip 1 takes place only when the hot strip 1 has reached a wrap angle of 180 ° or more.
  • FIG. 2 shows a device according to the invention for winding warm strip 1.
  • the device parts known from the prior art are used further under the same reference number.
  • the hot strip 1 transported from the upper drive roller 2 and the lower drive roller 3 to the coiler mandrel 4 is pressed by the first pressing device 7 in the direction of the reel mandrel 4 in the direction radially.
  • the hot strip 1 is pressed radially outward from the coiling mandrel 4 by a pre-bending device 6.
  • the pre-bending device 6 is arranged on the inner side of the winding 10, between the coiler mandrel 4 and hot-rolled strip 1, while the pressing devices 7, 8 and 9 come into contact with the hot-rolled strip 1 on the outer side of the winding.
  • the Vorbiegevorides 6 bends the hot strip 1 to an equal or higher curvature than the hot strip 1 would normally require to abut the coiler mandrel 4.
  • pre-bending of the hot strip 1 is firstly achieved that the hot strip 1 from the beginning of Aufwickeins completely applied to the reel mandrel 4 and the subsequent turns and secondly, a winding with a lower strip tension is possible because the hot strip 1 not only by the pressing devices , 8, and 9, but additionally by the pre-bending device 6.
  • a measuring device determines the band diameter, the strip thickness, the temperature of the hot strip and / or the quality of the material used. With these parameters, the desired position or the desired force of a Vorbiegevo ⁇ ch- device (6) is determined in a computing device and adjusted by means of an actuator. By means of a further measuring device, the actual position or the actual force is determined and compared with the desired position or the desired force and, if necessary, changed or adjusted by the control device.

Abstract

In a method for winding hot-rolled strip (1), comprising —a decoiler mandrel (4), —at least one first pressing device (7), —at least one second pressing device (8), wherein the hot-rolled strip (1) is pressed from the first pressing device (7) and the second pressing device (8) toward the decoiler mandrel (4), the hot-rolled strip (1) is pushed or pulled away from the decoiler mandrel (4) between the first pressing device (7) and the second pressing device (8), thereby subjecting the hot-rolled strip (1) to a prebending step. The invention further relates to a device for winding hot-rolled strip (1).

Description

Verfahren und Vorrichtung zum Aufwickeln von Warmband Method and device for winding hot strip
Die Erfindung betrifft ein Verfahren zum Aufwickeln von Warmband, mitThe invention relates to a method for winding hot strip, with
- einem Haspeldorn,- a coiler mandrel,
- mindestens einer ersten Andrückvorrichtung - mindestens einer zweiten Andrückvorrichtung, wobei das Warmband von der ersten Andrückvorrichtung und der zweiten Andrückvorrichtung zum Haspeldorn hin gedrückt wird. Die Erfindung betrifft weiterhin eine Vorrichtung zum Aufwickeln von Warmband.- At least a first pressing device - at least one second pressing device, wherein the hot strip is pressed by the first pressing device and the second pressing device to the coiler mandrel. The invention further relates to a device for winding hot strip.
Warmbandhaspel sind am Ende von Warmbandstraßen angeordnet und haben die Funktion, Warmband nach dem Walzen zu Bunden aufzuwickeln. Das Band wird dabei unter Zugspannung aufgewickelt, um ein ausreichend fest gewickeltes Bund zu erzeugen und ein Aufspringen des Bundes nach dem Fertigwickeln zu vermeiden. Die Zugspannung ist auch notwendig, um das Band um den Haspeldorn zu biegen und damit plastisch zu verformen. Besonders bei dicken Bändern sind große Zugkräfte notwendig, um das plastische Biegemoment zu überwinden.Hot strip reels are arranged at the end of hot strip mills and have the function to wind hot strip after rolling into coils. The tape is wound up under tension to produce a sufficiently tightly wound waistband and to avoid cracking of the waistband after the finished winding. The tension is also necessary to bend the band around the coiler mandrel and thus plastically deform. Especially with thick bands, large tensile forces are necessary to overcome the plastic bending moment.
Beim Wickeln wird das Band durch einen Treiber, bestehend aus einer oberen Treiberrolle und einer unteren Treiberrolle, geführt und zu einem Haspeldom transportiert. Das Band wird mit Unterstützung von Andrückrollen um den Dorn gewickelt und es bildet sich ein Bund, das nach vollständigem Aufwickeln des Bandes vom Haspeldom gezogen wird. Während des Wickeins wird zwischen Treiber und Haspeldorn eine vorgegebene Zugspannung im Band eingestellt.During winding, the tape is guided by a driver consisting of an upper drive roller and a lower drive roller and transported to a coiler mandrel. The band is wound around the mandrel with the assistance of pressure rollers and a collar is formed, which is drawn from the reel dome after the tape has been completely wound up. During winding, a predetermined tension in the belt is set between the driver and the coiler mandrel.
Die EP 0 469 483 offenbart Warmbandhaspel, bei denen das Band durch vier Andrückrollen an einen Dorn gedrückt wird.EP 0 469 483 discloses hot strip reels in which the strip is pressed against a mandrel by four pressure rollers.
Die JP 58 058 931 A offenbart einen Haspel, bei dem das aufzuwickelnde Band durch drei anstellbare Andrückrollen an einen Dorn gedrückt wird. Jede An- drückrolle wird mittels eines eigenen Hydraulikzylinders um einen eigenen Drehpunkt verschwenkt.JP 58 058 931 A discloses a reel in which the band to be wound is pressed against a mandrel by three adjustable pressure rollers. Every spinning roller is pivoted about its own pivot point by means of its own hydraulic cylinder.
Um zu erreichen, dass bereits der Bandanfang vollständig mit dem Dorn in Kontakt kommt und die ersten Wicklungen des Bandes einen Reibschluss bilden sieht die DE 24 14 482 B2 vor, die Dicke des Bandes am Bandanfang um mindestens 20% zu verringern. Der Bandanfang wird also mit einer Dicke versehen, die ein vollständiges Anlegen des Bandanfanges an den Dorn und der ersten Wicklungen ermöglicht. Nachdem die ersten Wicklungen reibschlüssig miteinander verbunden sind bzw. aufeinander liegen, wird die Dicke des Bandes den Vorgaben angepasst und erhöht. Ein derartiges Vorgehen ist auch in der DE 24 14 475 A1 offenbart.In order to achieve that already the beginning of the tape comes completely into contact with the mandrel and the first windings of the tape form a frictional connection, DE 24 14 482 B2 proposes to reduce the thickness of the tape at the beginning of the tape by at least 20%. The beginning of the strip is thus provided with a thickness which allows a complete application of the strip beginning to the mandrel and the first windings. After the first windings are frictionally connected to each other or lie on top of each other, the thickness of the tape is adjusted and increased the specifications. Such a procedure is also disclosed in DE 24 14 475 A1.
Verfahren und Vorrichtungen zum Aufwickeln von Warmband sind weiterhin aus EP 0 790 084 B1 und JP 59064116 A bekannt.Methods and apparatus for winding hot strip are further known from EP 0 790 084 B1 and JP 59064116 A.
Bei Bändern mit Banddicken von 7 mm und mehr, niedrigen Wickeltemperaturen sowie höherfesten Güten, wie z.B. Röhrenmaterial, sind große Bandzüge notwendig. Trotz der hohen Bandzüge legt sich das Band aber nicht direkt an den Dorn und an die ersten Wicklungen des Bundes an, sondern wird über eine längere Strecke gebogen, bevor es mit dem Bund in Kontakt kommt.For tapes with tape thicknesses of 7 mm and more, low coiling temperatures and higher strength grades, such as e.g. Tubing material, large bands are necessary. Despite the high bandages, the band does not lay directly on the thorn and the first coils of the federal government, but is bent over a longer distance before it comes into contact with the federal government.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren anzugeben, durch das ein Walzband mit Banddicken von 7 mm und mehr, niedrigen Wickel- temperaturen sowie höherfesten Güten wie Röhrenmaterial beim Aufwickeln zu einem Bund von Beginn an vollständig an dem Haspeldorn und nachfolgend vollständig an den bereits aufgewickelten Windungen des Bundes anliegt. Weiterhin soll eine Vorrichtung zum Aufwickeln von Warmband angegeben werden.The invention is therefore based on the object to provide a method by which a rolled strip with strip thicknesses of 7 mm and more, low winding temperatures and higher-strength grades such as tube material when winding to a covenant from the beginning completely on the coiler mandrel and subsequently completely to the already wound coils of the federal government is applied. Furthermore, a device for winding hot strip to be specified.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass bei einem Verfahren der o.g. Gattung zwischen der ersten Andrückvorrichtung und der zweiten Andrückvorrichtung eine Vorbiegevorrichtung das Warmband von dem Haspeldorn wegdrückt bzw. wegzieht und das Warmband dadurch einer Vorbiegung unterzogen wird.This object is achieved in that in a method of the above type between the first Andrückvorrichtung and the second Pressing a Vorbiegevorrichtung presses the hot strip from the coiler mandrel or pull away and the hot strip is thereby subjected to a pre-bend.
Durch das Vorbiegen des Warmbandes wird erstens erreicht, dass das Warmband von Beginn an des Aufwickeins vollständig am Haspeldorn bzw. an den nachfolgenden Windungen anliegt und zweitens wird ein Aufwickeln mit geringerem Bandzug ermöglicht, da das Warmband nicht nur durch die Andrückvorrichtungen verformt wird, sondern zusätzlich durch die Vorbiegevorrichtung.By pre-bending the hot strip is firstly achieved that the hot strip from the beginning of the winding completely rests on the reel mandrel or the subsequent turns and secondly, a winding with a lower strip tension is possible because the hot strip is not only deformed by the pressing devices, but in addition through the pre-bending device.
Weitere Ausgestaltungen des Verfahrens ergeben sich aus den diesbezügli- chen Unteransprüchen.Further embodiments of the method will become apparent from the dependent claims.
Die Erfindung betrifft außerdem eine Vorrichtung zum Aufwickeln von Warmband, mitThe invention also relates to a device for winding hot strip, with
- einem Haspeldorn, - mindestens einer ersten Andrückvorrichtung,a reel mandrel, at least one first pressing device,
- mindestens einer zweiten Andrückvorrichtung, wobei das Warmband von der ersten Andrückvorrichtung und der zweiten Andrückvorrichtung zum Haspeldorn hin gedrückt wird, wobei zwischen der ersten Andrückvorrichtung und er zweiten Andrückvorrichtung eine Vorbiegevorrich- tung angeordnet ist, die an der Wickelinnenseite mir dem Warmband in Kontakt ist und das Warmband radial nach außen, von dem Haspeldorn weg, verformt. Die Verformung erfolgt derart, dass das Warmband einen Radius erhält, der der dem Radius des Haspeldorns entspricht oder etwas kleiner ist. Das Warmband liegt von Beginn des Aufwickeins am Haspeldorn an oder wird, auf Grund der Vorspannung durch den etwas kleineren Radius vollständig durch die Andrückvorrichtungen an den Haspeldorn angedrückt.- At least a second pressing device, wherein the hot strip is pressed by the first pressing device and the second pressing device to the coiler mandrel, wherein between the first pressing device and the second pressing device Vorbiegevorrich- device is arranged, which is in contact with the hot strip on the inner side of the winding and the hot strip radially outwardly, away from the coiler mandrel, deformed. The deformation takes place such that the hot strip receives a radius which corresponds to the radius of the coiler mandrel or is slightly smaller. The hot strip is from the beginning of Aufwickeins on the coiler mandrel or is pressed due to the bias of the slightly smaller radius completely by the pressure devices to the coiler mandrel.
Weitere Ausgestaltungen der Vorrichtung ergeben sich aus den diesbezüglichen Unteransprüchen. Eine Regelung/Steuerung zum Aufwickeln von Warmband ist so ausgebildet, dass eine zwischen der ersten und der zweiten Andrückvorrichtung angeordnete Vorbiegevorrichtung so von dem Haspeldorn weg bzw. zu dem Haspeldorn hin verfahren wird, dass, abhängig von dem Bunddurchmesser, der Dicke des Warmbandes, der Güte des Warmbandes und/oder der Temperatur des Warmbandes ein Anliegen des Warmbandes am Beginn des Aufwickeins an dem Haspeldorn immer gegeben ist. Hierzu ist die Vorbiegevorrichtung sowohl von dem Haspeldorn weg als auch zum Haspeldom hin verfahrbar. Zusätzlich kann der Abstand der Vorbiegevorrichtung zur ersten Andrückvorrichtung und zur zweiten Andrückvorrichtung verändert werden. Daraus resultiert insgesamt ei- ner Möglichkeit zur Positionierung der Vorbiegevorrichtung in einer Ebene senkrecht zur Bandoberfläche. Hierzu ist die Vorbiegevorrichtung mit einer ersten Zug- oder Druckvorrichtung ausgestattet, die die Vorbiegevorrichtung zum Haspeldorn hin oder von ihr weg bewegt. Mindestens eine zweite Zug- oder Druckvorrichtung ist so angeordnet, dass die Vorbiegevorrichtung zur ersten An- drückvorrichtung oder zur zweiten Andrückvorrichtung hin oder weg verfahren wird. Die jeweilige Position der Vorbiegevorrichtung zum Haspeldorn, zur ersten Andrückvorrichtung und zur zweiten Andrückvorrichtung ist jeweils abhängig von der Dicke des Warmbandes, der Güte des Warmbandes und der Temperatur des Warmbandes. Diese vorab zu messenden bzw. zu ermittelnden Werte werden in einem Rechenprogramm einer Steuerung/Regelung eingelesen/eingegeben und die Position der Vorbiegevorrichtung zu Beginn des Aufwickelvorganges festgelegt. Da sich bei größer werdendem Bunddurchmesser der Radius beim Vorbiegen ebenfalls vergrößert, wird die Vorbiegevorrichtung zum Haspeldorn hin verfahren. Nach dem Aufwickelvorgang, wenn die letzte Win- düng des Warmbandes am Bund anliegt, wird die Vorbiegevorrichtung von dem Bund entfernt. Dieses kann sowohl in Bandlaufrichtung als auch quer zur Bandlaufrichtung erfolgen. Die Vorbiegevorrichtung beeinflusst das Abziehen des Bundes vom Haspeldorn nicht.Further embodiments of the device will become apparent from the relevant subclaims. A controller / controller for winding hot strip is designed so that a Vorbiegevorrichtung arranged between the first and the second pressing device is moved away from the coiler mandrel or to the coiler mandrel that, depending on the collar diameter, the thickness of the hot strip, the Quality of the hot strip and / or the temperature of the hot strip a concern of the hot strip at the beginning of Aufwickeins on the coiler mandrel is always given. For this purpose, the Vorbiegevorrichtung is movable both from the coiler mandrel and the reel dome out. In addition, the distance of the Vorbiegevorrichtung to the first pressing device and the second pressing device can be changed. This results in a total of a possibility for positioning the Vorbiegevorrichtung in a plane perpendicular to the strip surface. For this purpose, the Vorbiegevorrichtung is equipped with a first pulling or pushing device that moves the Vorbiegevorrichtung to the coiler mandrel or away from her. At least one second pulling or pushing device is arranged so that the pre-bending device is moved towards or away from the first pressing device or the second pressing device. The respective position of the pre-bending device to the coiler mandrel, the first pressing device and the second pressing device is dependent on the thickness of the hot strip, the quality of the hot strip and the temperature of the hot strip. These values to be measured in advance or to be determined are read / entered in a computer program of a control / regulation and the position of the pre-bending device is determined at the beginning of the winding process. As the radius increases during pre-bending as the collar diameter increases, the pre-bending device is moved towards the coiler mandrel. After the winding process, when the last winding of the hot strip is applied to the collar, the pre-bending device is removed from the collar. This can be done both in the tape running direction and transversely to the direction of tape travel. The Vorbiegevorrichtung does not affect the removal of the federal government from the coiler mandrel.
Eine alternative Ausführung der Steuerung/Regelung sieht vor, dass anstelle der Position der Vorbiegevorrichtung die Zugkraft beim Aufwickeln des Warm- bandes berücksichtigt wird. Hierzu werden bekannte Vorrichtungen zur Ermittlung des Bandzuges eingesetzt und, abhängig von den ermittelten Werten, wird die Vorbiegevorrichtung gesteuert/geregelt.An alternative embodiment of the control / regulation provides that, instead of the position of the pre-bending device, the tensile force during winding up of the bandes is considered. For this purpose, known devices are used to determine the strip tension and, depending on the determined values, the Vorbiegevorrichtung is controlled / regulated.
Ein Ausführungsbeispiel der Erfindung wird anhand einer sehr schematischen Zeichnung näher beschrieben. Es zeigt:An embodiment of the invention will be described with reference to a very schematic drawing. It shows:
Fig. 1 in Seitenansicht einen Warmbandhaspel nach dem Stand der Technik;Figure 1 is a side view of a hot strip reel according to the prior art.
Fig. 2 in Seitenansicht einen erfindungsgemäßen Warmbandhaspel; undFIG. 2 shows a side view of a hot strip reel according to the invention; FIG. and
Fig. 3 das Regelschema der Vorrichtung.Fig. 3 shows the control scheme of the device.
In Figur 1 ist in Seitenansicht eine bekannte Vorrichtung zum Aufwickeln von Warmband 1 dargestellt. Dass aus einem nicht dargestellten Walzgerüst kommende Warmband 1 wird zwischen einer oberen Treiberrolle 2 und einer unteren Treiberrolle 3 durchgeführt und von dort zu einem Haspeldorn 4 transpor- tiert. Zum Andrücken des Warmbandes 1 an den Haspeldorn 4 sind um diesen mehrere Andrückvorrichtungen 7, 8, 9 angeordnet. Beim Aufwickeln eines Warmbandes 1 aus höherfesten Stahlgüten und/oder von Banddicken von 7mm oder mehr legt sich das Warmband 1 nicht direkt an den Haspeldom 4 an. Ein Reibschluss zwischen Haspeldorn 4 und Warmband 1 erfolgt erst dann, wenn das Warmband 1 einem Umschlingungswinkel von 180° oder mehr erreicht hat. D.h. das Warmband 1 ist zu Beginn des Aufwickelvorganges von dem Haspeldorn 4 beabstandet und eine Zugspannung im Warmband 1 zwischen den Treiberrollen 2, 3 und dem Haspeldorn 4 wird nicht aufgebaut. Weiterhin weicht der Durchmesser des Coilauges, d.h. des inneren Durchmessers des aufgewickel- ten Warmbandes 1 , von dem durch den Haspeldorn 4 vorgegebenen Durchmesser ab. Figur 2 zeigt eine erfindungsgemäße Vorrichtung zum Aufwickeln von Warmband 1. Die aus dem Stand der Technik bekannten Vorrichtungsteile werden unter gleicher Bezugsziffer weiter verwendet. Das von der oberen Treiberrolle 2 und der unteren Treiberrolle 3 zum Haspeldorn 4 transportierte Warmband 1 wird durch die erste Andrückvorrichtung 7 in Richtung radial in Richtung des Haspeldoms 4 gedrückt. Bevor das Warmband 1 durch die zweite Andrückvorrichtung 8 ebenfalls radial an den Haspeldorn 4 gedrückt wird das Warmband 1 durch eine Vorbiegevorrichtung 6 radial von dem Haspeldorn 4 nach außen gedrückt. Dabei ist die Vorbiegevorrichtung 6 an der Wickelinnenseite 10 ange- ordnet, zwischen Haspeldorn 4 und Warmband 1 , während die Andrückvorrichtungen 7, 8 und 9 auf die Wickelaußenseite in Kontakt mit dem Warmband 1 treten. Die Vorbiegevorrichtung 6 biegt das Warmband 1 auf eine gleiche oder eine höhere Krümmung als das Warmband 1 normalerweise erfordern würde, um an dem Haspeldorn 4 anzuliegen. Durch das Vorbiegen des Warmbandes 1 wird erstens erreicht, dass das Warmband 1 von Beginn an des Aufwickeins vollständig am Haspeldorn 4 bzw. an den nachfolgenden Windungen anliegt und zweitens wird ein Aufwickeln mit geringerem Bandzug ermöglicht, da das Warmband 1 nicht nur durch die Andrückvorrichtungen 7,8, und 9 verformt wird, sondern zusätzlich durch die Vorbiegevorrichtung 6.1 shows a side view of a known device for winding hot strip 1 is shown. That coming from a roll stand, not shown, hot strip 1 is carried out between an upper drive roller 2 and a lower drive roller 3 and transported from there to a coiler mandrel 4. For pressing the hot strip 1 to the coiler mandrel 4 a plurality of pressing devices 7, 8, 9 are arranged around this. When winding a hot strip 1 of higher-strength steel grades and / or strip thickness of 7mm or more, the hot strip 1 does not apply directly to the reel mandrel 4. A frictional engagement between the coiler mandrel 4 and hot strip 1 takes place only when the hot strip 1 has reached a wrap angle of 180 ° or more. That is, the hot strip 1 is spaced at the beginning of the winding of the coiler mandrel 4 and a tensile stress in the hot strip 1 between the driver rollers 2, 3 and the coiler mandrel 4 is not established. Furthermore, the diameter of the coil eye, ie the inner diameter of the wound hot strip 1, deviates from the diameter predetermined by the coiler mandrel 4. FIG. 2 shows a device according to the invention for winding warm strip 1. The device parts known from the prior art are used further under the same reference number. The hot strip 1 transported from the upper drive roller 2 and the lower drive roller 3 to the coiler mandrel 4 is pressed by the first pressing device 7 in the direction of the reel mandrel 4 in the direction radially. Before the hot-rolled strip 1 is likewise pressed radially by the second pressing device 8 onto the coiler mandrel 4, the hot strip 1 is pressed radially outward from the coiling mandrel 4 by a pre-bending device 6. In this case, the pre-bending device 6 is arranged on the inner side of the winding 10, between the coiler mandrel 4 and hot-rolled strip 1, while the pressing devices 7, 8 and 9 come into contact with the hot-rolled strip 1 on the outer side of the winding. The Vorbiegevorrichtung 6 bends the hot strip 1 to an equal or higher curvature than the hot strip 1 would normally require to abut the coiler mandrel 4. By pre-bending of the hot strip 1 is firstly achieved that the hot strip 1 from the beginning of Aufwickeins completely applied to the reel mandrel 4 and the subsequent turns and secondly, a winding with a lower strip tension is possible because the hot strip 1 not only by the pressing devices , 8, and 9, but additionally by the pre-bending device 6.
In Figur 3 ist das Regelschema dargestellt. Eine Messeinrichtung ermittelt den Banddurchmesser, die Banddicke, die Temperatur des Warmbandes und/oder die Güte des eingesetzten Werkstoffes. Mit diesen Parametern wird in einer Recheneinrichtung die Soll-Position oder die Soll-Kraft einer Vorbiegevoπϊch- tung (6) ermittelt und mittels eines Stellorganes eingestellt. Mittels einer weiteren Messeinrichtung wird die Ist-Position oder die Ist-Kraft ermittelt und mit der Soll-Position bzw. der Soll-Kraft verglichen und, wenn nötig, durch die Regeleinrichtung verändert bzw. angepasst. BezugszeichenlisteIn Figure 3, the control scheme is shown. A measuring device determines the band diameter, the strip thickness, the temperature of the hot strip and / or the quality of the material used. With these parameters, the desired position or the desired force of a Vorbiegevoπϊch- device (6) is determined in a computing device and adjusted by means of an actuator. By means of a further measuring device, the actual position or the actual force is determined and compared with the desired position or the desired force and, if necessary, changed or adjusted by the control device. LIST OF REFERENCE NUMBERS
1. Warmband1. hot strip
2. obere Treiberrolle2nd upper driver role
3. untere Treiberrolle3. lower driver role
4. Haspeldorn4. reel mandrel
5. Bund5th fret
6. Vorbiegevorrichtung6. Vorbiegevorrichtung
7. erste Andrückvorrichtung7. first pressing device
8. zweite Andrückvorrichtung8. second pressing device
9. Andrückvorrichtung9. Pressing device
10. Wickelinnenseite10. winding inside
11. Wickelaußenseite 11. Wickelaußenseite

Claims

Patentansprüche claims
1. Verfahren zum Aufwickeln von Warmband (1 ), mit - einem Haspeldorn (4),1. A method for winding hot strip (1), comprising - a coiler mandrel (4),
- mindestens einer ersten Andrückvorrichtung (7),at least one first pressing device (7),
- mindestens einer zweiten Andrückvorrichtung (8), wobei das Warmband (1 ) von der ersten Andrückvorrichtung (7) und der zweiten Andrückvorrichtung (8) zum Haspeldorn (4) hin gedrückt wird, dadurch gekennzeichnet, dass dass das Warmband (1 ) zwischen der ersten Andrückvorrichtung (7) und der zweiten Andrückvorrichtung (8) von dem Haspeldorn (4) weggedrückt bzw. weggezogen wird und das Warmband (1) dadurch einer Vorbiegung unterzogen wird.- At least a second pressing device (8), wherein the hot strip (1) from the first pressing device (7) and the second pressing device (8) is pressed towards the coiler mandrel (4), characterized in that that the hot strip (1) between the first pressing device (7) and the second pressing device (8) is pushed away or pulled away from the coiler mandrel (4) and the hot strip (1) is thereby subjected to a pre-bend.
2. Verfahren nach Anspruch 1 dadurch gekennzeichnet, dass der das Warmband (1) während des gesamten Wickelvorganges vorgebogen wird.2. The method according to claim 1, characterized in that the hot strip (1) is pre-bent during the entire winding process.
3. Verfahren nach Anspruch 1 dadurch gekennzeichnet, dass dass das Warmband (1) am Anfang des Wickelvorganges vorgebogen wird.3. The method according to claim 1, characterized in that that the hot strip (1) is pre-bent at the beginning of the winding process.
4. Verfahren nach Anspruch 1 , 2 oder 3, dadurch gekennzeichnet, dass die Vorbiegung mit Hilfe einer Vorbiegevorrichtung (6) erfolgt, deren Position in Bezug auf das Warmband (1) und/oder deren Kraft, mit wel- eher die Vorbiegevorrichtung (6) auf das Warmband (1 ) drückt, während des Aufwickeins geeignet geregelt wird. 4. The method according to claim 1, 2 or 3, characterized in that the pre-bending takes place with the aid of a pre-bending device (6) whose position relative to the hot strip (1) and / or its force, with which the pre-bending device (6 ) presses on the hot strip (1) is controlled properly during the winding.
5. Vorrichtung zum Aufwickeln von Warmband (1 ), mit5. Apparatus for winding hot strip (1), with
- einem Haspeldorn (4),a coiler mandrel (4),
- mindestens einer ersten Andrückvorrichtung (7),at least one first pressing device (7),
- mindestens einer zweiten Andrückvorrichtung (8), wobei das Warmband (1 ) von der ersten Andrückvorrichtung (7) und der zweiten Andrückvorrichtung (8) zum Haspeldorn (4) hin gedrückt wird, dadurch gekennzeichnet, dass zwischen der ersten Andrückvorrichtung (7) und der zweiten Andrückvorrichtung (8) eine Vorbiegevorrichtung (6) angeordnet ist, die an der Wickelinnenseite (10) mit dem Warmband (1 ) in Kontakt ist und das- At least a second pressing device (8), wherein the hot strip (1) of the first pressing device (7) and the second pressing device (8) is pressed towards the reel mandrel (4), characterized in that between the first pressing device (7) and the second pressing device (8) a Vorbiegevorrichtung (6) is arranged, which is on the winding inner side (10) with the hot strip (1) in contact and the
Warmband (1 ) radial nach außen, von dem Haspeldorn (4) weg, verformt.Hot strip (1) radially outward, of the coiler mandrel (4) away, deformed.
6. Vorrichtung nach Anspruch 5, gekennzeichnet durch eine Regelungseinrichtung zum Regeln der Position der Vorbiegevorrichtung (6) in Bezug auf das Warmband (1 ) mit Hilfe eines Stellorgans und/oder zum Regeln der Kraft mit welcher die Vorbiegevorrichtung (6) auf das Warmband (6) drückt.6. Apparatus according to claim 5, characterized by a regulating device for regulating the position of the Vorbiegevorrichtung (6) with respect to the hot strip (1) by means of an actuator and / or for regulating the force with which the Vorbiegevorrichtung (6) on the hot strip ( 6) presses.
7. Vorrichtung nach Anspruch 6, gekennzeichnet durch eine Messeinrichtung zum Erfassen von Parametern, wie z.B. dem Bunddurchmesser, der Banddicke, der Güte oder der Temperatur des Warmbandes (1 ); und eine Recheneinrichtung mit einem Rechenprogramm zur Bestimmung eines Sollwertes für die Regelung der Position oder der Kraft der Vorbiegevorrichtung (6) während des Aufwickeins des Bundes nach Maßgabe der Größe der erfassten Parameter.7. Apparatus according to claim 6, characterized by a measuring device for detecting parameters, such. the collar diameter, the strip thickness, the quality or the temperature of the hot strip (1); and a computing device having a computer program for determining a target value for the regulation of the position or the force of the pre-bending device (6) during the winding of the collar in accordance with the size of the detected parameters.
8. Vorrichtung nach Anspruch 6 oder 7. dadurch gekennzeichnet, dass das Stellorgan als Zug- oder Druckvorrichtung ausgebildet ist, um die Vorbiegevorrichtung (6) in einer Ebene senkrecht zur Bandoberfläche in Bezug auf den Haspeldorn (4) und das aufgewickelte Bund in Abhängigkeit der erfassten Parameter geeignet zu positionieren.8. Apparatus according to claim 6 or 7, characterized in that in that the actuator is designed as a pulling or pushing device in order to position the pre-bending device (6) in a plane perpendicular to the belt surface with respect to the coiler mandrel (4) and the wound coil as a function of the detected parameters.
Vorrichtung nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, dass das Stellorgan ausgebildet ist, die Vorbiegevorrichtung (6) aus der Linie des Warmbandes (1 ) zu verfahren, während oder nach dem Aufwickeln des Warmbandes (1 ). Device according to one of claims 5 to 8, characterized in that the actuator is designed to move the Vorbiegevorrichtung (6) from the line of the hot strip (1), during or after the winding of the hot strip (1).
EP08734878A 2007-03-28 2008-03-28 Method and device for winding hot-rolled strip Not-in-force EP2129479B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007014748 2007-03-28
DE102008016314A DE102008016314A1 (en) 2007-03-28 2008-03-28 Method and device for winding hot strip
PCT/EP2008/002511 WO2008116666A1 (en) 2007-03-28 2008-03-28 Method and device for winding hot-rolled strip

Publications (2)

Publication Number Publication Date
EP2129479A1 true EP2129479A1 (en) 2009-12-09
EP2129479B1 EP2129479B1 (en) 2010-09-15

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US (1) US9238259B2 (en)
EP (1) EP2129479B1 (en)
JP (1) JP4988916B2 (en)
KR (1) KR101121999B1 (en)
CN (1) CN101687238B (en)
AT (1) ATE481187T1 (en)
BR (1) BRPI0807869A2 (en)
CA (1) CA2679434A1 (en)
DE (2) DE502008001320D1 (en)
ES (1) ES2353044T3 (en)
RU (1) RU2403112C1 (en)
UA (1) UA96482C2 (en)
WO (1) WO2008116666A1 (en)

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US9238259B2 (en) 2016-01-19
JP4988916B2 (en) 2012-08-01
BRPI0807869A2 (en) 2014-06-17
EP2129479B1 (en) 2010-09-15
ES2353044T3 (en) 2011-02-24
US20110138870A1 (en) 2011-06-16
KR20090102858A (en) 2009-09-30
WO2008116666A1 (en) 2008-10-02
DE102008016314A1 (en) 2008-10-02
RU2403112C1 (en) 2010-11-10
ATE481187T1 (en) 2010-10-15
CA2679434A1 (en) 2008-10-02
CN101687238A (en) 2010-03-31
KR101121999B1 (en) 2012-03-09
DE502008001320D1 (en) 2010-10-28
CN101687238B (en) 2012-10-10
UA96482C2 (en) 2011-11-10
JP2010522084A (en) 2010-07-01

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