EP1083010A2 - Adjustment method for two shielding elements and associated roller table - Google Patents

Adjustment method for two shielding elements and associated roller table Download PDF

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Publication number
EP1083010A2
EP1083010A2 EP00119517A EP00119517A EP1083010A2 EP 1083010 A2 EP1083010 A2 EP 1083010A2 EP 00119517 A EP00119517 A EP 00119517A EP 00119517 A EP00119517 A EP 00119517A EP 1083010 A2 EP1083010 A2 EP 1083010A2
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EP
European Patent Office
Prior art keywords
roller table
shielding elements
adjustment
center
drives
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
EP00119517A
Other languages
German (de)
French (fr)
Other versions
EP1083010A3 (en
EP1083010B1 (en
Inventor
Hermann Thiel
Jürgen Seidel
Peter Holterhoff
Markus Cramer
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 Schloemann Siemag AG
Schloemann 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 Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP1083010A2 publication Critical patent/EP1083010A2/en
Publication of EP1083010A3 publication Critical patent/EP1083010A3/en
Application granted granted Critical
Publication of EP1083010B1 publication Critical patent/EP1083010B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/20—Temperature
    • B21B2261/21—Temperature profile

Definitions

  • Metal strips are cooled in the prior art to desired metallurgical To achieve properties. Since the edge areas of the metal strip in the Usually colder than the central area of the belt, is used in the prior art a cooling medium is shielded from the edge areas of the metal strip. In order to should achieve an even temperature distribution behind the cooling section become.
  • the object of the present invention is to provide an adjustment method for two shielding elements and a corresponding roller table are available by means of which an even temperature profile in the Metal band is achievable.
  • the object is achieved for the adjustment process in that the shielding elements can be adjusted asymmetrically with respect to the center of the roller table.
  • the task for the roller table is solved in that the shielding elements of adjustment drives are asymmetrical with respect to the center of the roller table are adjustable.
  • one Roller table can with the presence of appropriate sensor devices and hereby Corresponding detection of the corresponding deviations in particular a distance from the center of the belt to the center of the roller table, an asymmetry of the Temperature curve across the bandwidth in front of the shielding elements and one Asymmetry of the temperature curve across the bandwidth behind the shielding elements be recorded and compensated.
  • the shielding elements can optionally be used mechanically independent of its own adjustment drive from each other or from one actuator mechanically symmetrical and can be adjusted mechanically antisymmetric.
  • the roller table is structurally particularly simple when the shielding elements Are arranged above the roller table, the shielding elements as in the direction of transport extending longitudinal channels are formed and the cooling medium from fed to the longitudinal channels transverse to the direction of transport becomes.
  • transverse channels are arranged between the adjustment elements and the roller table are the adjustment elements from heat and possible explosion of the Protected metal tape.
  • a roller table has a plurality of transport rollers 1 on which a metal strip 2 is transported in a transport direction x.
  • the roller table has a roller table center 3.
  • the metal band has a beginning of the band 4, a band center 5 and a metal band width b.
  • the metal band 2 extends over the metal bandwidth b from one edge region 6 to one further edge area 6.
  • the metal strip points in front of a cooling section, generally designated 7, over the Metal bandwidth b a temperature curve. Also behind the cooling section 7 the metal strip 2 has a temperature profile over the metal strip width b.
  • the metal strip 2 In the area of the cooling section 7, the metal strip 2 with a cooling medium 8, for. B. water 8, so that it is cooled.
  • shielding elements 9 are arranged, by means of which the cooling medium 8 from the Edge areas 6 of the metal strip 2 can be shielded.
  • the shielding elements 9 are adjusted by actuators 10 such that the temperature profile over the metal bandwidth b seen in the transport direction x behind the shielding elements 9 is approximated to a set temperature curve. As a rule, the set temperature curve an even temperature distribution over the bandwidth b.
  • the shielding elements 9 are adjusted via Threaded spindles 11, which are driven by the adjustment drives 10.
  • FIG. 1 is a separate adjustment drive 10 for each shielding element 9 assigned by means of which it is mechanically independent of the other Shielding element 9 is adjustable.
  • the shielding elements are 9 via a differential gear 12, for. B. a planetary gear 12, coupled together.
  • the shielding elements 9 are driven by the one adjustment drive symmetrical to each other and mechanically antisymmetric by the other adjustment drive adjusted to each other. In both cases, however, it is possible to use the shielding elements 9 to be adjusted asymmetrically with respect to the center of the roller table 3.
  • the temperature profiles is in front of and behind the shielding elements 9 each have a sensor device 13, 14 arranged. Because of the recorded temperature profiles is an asymmetry of the temperature profiles over the bandwidth b in Transport direction x seen in front of and behind the shielding elements 9 detectable.
  • the corresponding asymmetries are entered into a control device 15, which is assigned to the adjustment drives 10.
  • the control device 15 determines then appropriate adjustments for the shielding elements 9, so that the Asymmetries of the temperature profiles in front of and behind the shielding elements 9 be compensated.
  • the temperature profile can therefore also be a distance d between the belt center 5 and the roller table center 3 are detected or determined. This distance d can also be determined by the asymmetrical adjustment of the shielding elements 9 can be compensated.
  • the metal strip 2 has a strip start 4.
  • the control device 15 Before the When the beginning of the strip 4 enters the roller table, the control device 15 and thus indirectly the adjustment drives 10 from a control unit 16 default settings predetermined to which the shielding elements 9 are to be set in advance.
  • the shielding elements 9 After the beginning of the band 4 in the roller table, the shielding elements 9 then by the adjustment drives 10 according to the detected asymmetries the temperature profiles and in accordance with the detected distance d Readjustments adjusted. The readjustments are made by the control device 15 transmitted to the control unit 16.
  • the control unit 16 modifies the presettings based on the subsequent settings.
  • the shielding elements 9 are then modified in advance Presets set. This results in self-learning behavior the adjustment procedure.
  • Figure 3 shows schematically the determination of the settings for the shielding elements 9.
  • the sensor devices 13, 14 have correction value detectors 17, 18 connected.
  • the correction value determiner 17, 18 determine from the detected temperature distribution in front of or behind the shielding elements 9 a Asymmetry value for the edge areas 6 and from this an adjustment asymmetry for the shielding elements 9.
  • the sensor device 13 is also connected to a belt position detector 19. This determines the distance d from the center of the strip from the recorded temperature profile 5 from the center of the roller table 3.
  • the determined correction values and the determined distance are the control device 15 specified.
  • the control device 15 are also used by the control unit 16 default settings.
  • the control device 15 determines corresponding adjustments for the shielding elements 9. These newly determined Settings (readjustments) are sent to the after a stabilization phase Control unit 16 transmitted back, so that this the default settings can modify.
  • the shielding elements 9 are simple baffle plates 9 formed, which are adjusted by means of the threaded spindles 11.
  • the shielding elements 9 are formed as longitudinal channels 9, which are in the transport direction x run.
  • the cooling medium 8 collected by them is fed to transverse channels 20, that run across the transport direction x. Of these, the cooling medium 8 then discharged to the outside.
  • the Transverse channels 20 are arranged between the adjustment drives 10 and the roller table.
  • the shielding elements 9 are also used instead of via threaded spindles 11 adjusted via roller chain drives 21.
  • the transverse channels 20 protect the adjustment drives 10 and / or the adjusting elements 11 and 21 before overheating and before possible ascent of the beginning of the band 4.
  • a fastening and the adjustment the shielding elements 9 can be seen according to FIG. 4 in the transport direction x done in two positions.
  • the shielding elements 9 are arranged over the roller table. In principle, however, it would also be possible to use such a shielding arrangement to be arranged below the roller table.

Abstract

Adjusting process for two screening elements (9) comprises transporting a metal strip (2) having a width (b), a center (5) and edge regions (6) on a roller table having a center (3) in a direction (x); screening a cooling medium (8) from the edge regions of the metal strip using the screening elements; and adjusting the elements asymmetrically with respect to center of the roller table so that the temperature course approximates to the theoretical temperature course in the transport direction. An Independent claim is also included for a roller table.

Description

Die vorliegende Erfindung betrifft ein Verstellverfahren für zwei Abschirmelemente,

  • wobei ein Metallband mit einer Metallbandbreite, einer Bandmitte und Randbereichen auf einem Rollgang mit einer Rollgangmitte in einer Transportrichtung transportiert wird,
  • wobei das Metallband über die Metallbandbreite einen Temperaturverlauf aufweist,
  • wobei mittels der Abschirmelemente ein Kühlmedium von den Randbereichen des Metallbandes abgeschirmt wird,
  • wobei die Abschirmelemente derart verstellt werden, daß der Temperaturverlauf in Transportrichtung gesehen hinter den Abschirmelementen einem Solltemperaturverlauf angenähert wird,
sowie einen hiermit korrespondierenden Rollgang mit einer Rollgangmitte zum Transportieren eines Metallbandes mit einer Metallbandbreite und einer Bandmitte in einer Transportrichtung, wobei mittels der Abschirmelemente ein Kühlmedium von Randbereichen des Metallbandes abschirmbar ist.The present invention relates to an adjustment method for two shielding elements,
  • wherein a metal belt with a metal belt width, a belt center and edge areas is transported on a roller table with a roller table center in a transport direction,
  • the metal strip having a temperature profile over the metal strip width,
  • wherein a cooling medium is shielded from the edge areas of the metal strip by means of the shielding elements,
  • wherein the shielding elements are adjusted in such a way that the temperature profile seen in the direction of transport is approximated to a target temperature profile behind the shielding elements,
and a roller table corresponding to this with a roller table center for transporting a metal strip with a metal strip width and a strip center in a transport direction, wherein a cooling medium can be shielded from edge areas of the metal strip by means of the shielding elements.

Ein derartiges Verstellverfahren und der hiermit korrespondierende Rollgang sind beispielsweise aus der DE 32 30 866 C2 bekannt.Such an adjustment method and the corresponding roller table are known for example from DE 32 30 866 C2.

Metallbänder werden im Stand der Technik gekühlt, um gewünschte metallurgische Eigenschaften zu erreichen. Da die Randbereiche des Metallbandes in der Regel kälter sind als der Mittelbereich des Bandes, wird dabei im Stand der Technik ein Kühlmedium von den Randbereichen des Metallbandes abgeschirmt. Damit soll eine gleichmäßige Temperaturverteilung hinter der Kühlstrecke erreicht werden. Metal strips are cooled in the prior art to desired metallurgical To achieve properties. Since the edge areas of the metal strip in the Usually colder than the central area of the belt, is used in the prior art a cooling medium is shielded from the edge areas of the metal strip. In order to should achieve an even temperature distribution behind the cooling section become.

Die Aufgabe der vorliegenden Erfindung besteht darin, ein Verstellverfahren für zwei Abschirmelemente und einen hiermit korrespondierenden Rollgang zur Verfügung zu stellen, mittels derer ein noch gleichmäßigerer Temperaturverlauf im Metallband erzielbar ist.The object of the present invention is to provide an adjustment method for two shielding elements and a corresponding roller table are available by means of which an even temperature profile in the Metal band is achievable.

Die Aufgabe wird für das Verstellverfahren dadurch gelöst, daß die Abschirmelemente bezüglich der Rollgangmitte asymmetrisch verstellt werden.The object is achieved for the adjustment process in that the shielding elements can be adjusted asymmetrically with respect to the center of the roller table.

Hiermit korrespondierend wird die Aufgabe für den Rollgang dadurch gelöst, daß die Abschirmelemente von Verstellantrieben bezüglich der Rollgangmitte asymmetrisch verstellbar sind.Correspondingly, the task for the roller table is solved in that the shielding elements of adjustment drives are asymmetrical with respect to the center of the roller table are adjustable.

Mit dem erfindungsgemäßen Verstellverfahren bzw. dem erfindungsgemäßen Rollgang kann bei Vorhandensein entsprechender Sensoreinrichtungen und hiermit korrespondierendem Erfassen der entsprechenden Abweichungen insbesondere ein Abstand der Bandmitte von der Rollgangmitte, eine Asymmetrie des Temperaturverlaufs über die Bandbreite vor den Abschirmelementen und eine Asymmetrie des Temperaturverlaufs über die Bandbreite hinter den Abschirmelementen erfaßt und kompensiert werden.With the adjustment method according to the invention or the inventive one Roller table can with the presence of appropriate sensor devices and hereby Corresponding detection of the corresponding deviations in particular a distance from the center of the belt to the center of the roller table, an asymmetry of the Temperature curve across the bandwidth in front of the shielding elements and one Asymmetry of the temperature curve across the bandwidth behind the shielding elements be recorded and compensated.

Zum asymmetrischen Verstellen der Abschirmelemente bezüglich der Rollgangmitte sind zwei Verstellantriebe erforderlich. Wahlweise können dabei die Abschirmelemente von je einem eigenen Verstellantrieb mechanisch unabhängig voneinander oder aber von je einem Verstellantrieb mechanisch symmetrisch und mechanisch antisymmetrisch verstellt werden.For asymmetrical adjustment of the shielding elements with respect to the center of the roller table two adjustment drives are required. The shielding elements can optionally be used mechanically independent of its own adjustment drive from each other or from one actuator mechanically symmetrical and can be adjusted mechanically antisymmetric.

Das Verstellverfahren ist selbstiernend, wenn

  • das Metallband einen Bandanfang aufweist,
  • vor dem Einlaufen des Bandanfangs in den Rollgang den Verstellantrieben von einer Steuereinheit Voreinstellungen vorgegeben werden,
  • nach dem Einlaufen des Bandanfangs in den Rollgang die Abschirmelemente von den Verstellantrieben auf Nacheinstellungen verstellt werden,
  • die Nacheinstellungen der Steuereinheit übermittelt werden und
  • die Steuereinheit anhand der Nacheinstellungen die Voreinstellungen modifiziert.
The adjustment procedure is self-regulating, if
  • the metal band has a beginning of the band,
  • Before the beginning of the belt into the roller table, the adjustment drives are preset by a control unit,
  • After the start of the belt into the roller table, the shielding elements are adjusted to readjustments by the adjustment drives,
  • the subsequent settings of the control unit are transmitted and
  • the control unit modified the default settings based on the subsequent settings.

Der Rollgang ist konstruktiv besonders einfach aufgebaut, wenn die Abschirmelemente über dem Rollgang angeordnet sind, die Abschirmelemente als in Transportrichtung verlaufende Längsrinnen ausgebildet sind und das Kühlmedium von den Längsrinnen quer zur Transportrichtung verlaufenden Querrinnen zugeführt wird.The roller table is structurally particularly simple when the shielding elements Are arranged above the roller table, the shielding elements as in the direction of transport extending longitudinal channels are formed and the cooling medium from fed to the longitudinal channels transverse to the direction of transport becomes.

Wenn die Querrinnen zwischen den Verstellelementen und dem Rollgang angeordnet sind, sind die Verstellelemente vor Hitze und eventuellen Hochgehen des Metallbandes geschützt.If the transverse channels are arranged between the adjustment elements and the roller table are the adjustment elements from heat and possible explosion of the Protected metal tape.

Weitere Vorteile und Einzelheiten ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels. Dabei zeigen in Prinzipdarstellung

Figur 1
einen Rollgang in Transportrichtung gesehen,
Figur 2
den Rollgang von Figur 1 von oben,
Figur 3
schematisch ein Verstellverfahren und
Figur 4
den Rollgang von Figur 1 von der Seite.
Further advantages and details emerge from the following description of an exemplary embodiment. Show in principle
Figure 1
seen a roller table in the direction of transport,
Figure 2
the roller table of Figure 1 from above,
Figure 3
schematically an adjustment process and
Figure 4
the roller table of Figure 1 from the side.

Gemaß den Figuren 1 und 2 weist ein Rollgang eine Vielzahl von Transportrollen 1 auf, auf denen ein Metallband 2 in einer Transportrichtung x transportiert wird. Der Rollgang weist eine Rollgangmitte 3 auf. Das Metallband weist einen Bandanfang 4, eine Bandmitte 5 sowie eine Metallbandbreite b auf. Das Metallband 2 erstreckt sich über die Metallbandbreite b von einem Randbereich 6 zu einem weiteren Randbereich 6.According to Figures 1 and 2, a roller table has a plurality of transport rollers 1 on which a metal strip 2 is transported in a transport direction x. The roller table has a roller table center 3. The metal band has a beginning of the band 4, a band center 5 and a metal band width b. The metal band 2 extends over the metal bandwidth b from one edge region 6 to one further edge area 6.

Das Metallband weist vor einer allgemein mit 7 bezeichneten Kühlstrecke über die Metallbandbreite b einen Temperaturverlauf auf. Auch hinter der Kühlstrecke 7 weist das Metallband 2 über die Metallbandbreite b einen Temperaturverlauf auf.The metal strip points in front of a cooling section, generally designated 7, over the Metal bandwidth b a temperature curve. Also behind the cooling section 7 the metal strip 2 has a temperature profile over the metal strip width b.

Im Bereich der Kühlstrecke 7 wird das Metallband 2 mit einem Kühlmedium 8, z. B. Wasser 8, beaufschlagt, so daß es abgekühlt wird. Im Bereich der Kühlstrecke 7 sind Abschirmelemente 9 angeordnet, mittels derer das Kühlmedium 8 von den Randbereichen 6 des Metallbandes 2 abschirmbar ist. Die Abschirmelemente 9 werden von Verstellantrieben 10 derart verstellt, daß der Temperaturverlauf über die Metallbandbreite b in Transportrichtung x gesehen hinter den Abschirmelementen 9 einem Solltemperaturverlauf angenähert wird. In der Regel ist der Solltemperaturverlauf eine gleichmäßige Temperaturverteilung über die Bandbreite b.In the area of the cooling section 7, the metal strip 2 with a cooling medium 8, for. B. water 8, so that it is cooled. In the area of the cooling section 7 shielding elements 9 are arranged, by means of which the cooling medium 8 from the Edge areas 6 of the metal strip 2 can be shielded. The shielding elements 9 are adjusted by actuators 10 such that the temperature profile over the metal bandwidth b seen in the transport direction x behind the shielding elements 9 is approximated to a set temperature curve. As a rule, the set temperature curve an even temperature distribution over the bandwidth b.

Gemäß den Figuren 1 und 2 erfolgt das Verstellen der Abschirmelemente 9 über Gewindespindeln 11, die von den Verstellantrieben 10 angetrieben werden. Gemäß Figur 1 ist dabei jedem Abschirmelement 9 ein eigener Verstellantrieb 10 zugeordnet, mittels dessen er mechanisch unabhängig von dem jeweils anderen Abschirmelement 9 verstellbar ist. Gemäß Figur 2 sind die Abschirmelemente 9 über ein Differentialgetriebe 12, z. B. ein Planetengetriebe 12, miteinander gekuppelt. In diesem Fall werden die Abschirmelemente 9 von dem einen Verstellantrieb symmetrisch zueinander und von dem anderen Verstellantrieb mechanisch antisymmetrisch zueinander verstellt. In beiden Fällen aber ist es möglich, die Abschirmelemente 9 bezüglich der Rollgangmitte 3 asymmetrisch zu verstellen.According to FIGS. 1 and 2, the shielding elements 9 are adjusted via Threaded spindles 11, which are driven by the adjustment drives 10. According to FIG. 1 is a separate adjustment drive 10 for each shielding element 9 assigned by means of which it is mechanically independent of the other Shielding element 9 is adjustable. According to FIG. 2, the shielding elements are 9 via a differential gear 12, for. B. a planetary gear 12, coupled together. In this case, the shielding elements 9 are driven by the one adjustment drive symmetrical to each other and mechanically antisymmetric by the other adjustment drive adjusted to each other. In both cases, however, it is possible to use the shielding elements 9 to be adjusted asymmetrically with respect to the center of the roller table 3.

Zur Erfassung der Temperaturverläufe ist vor und hinter den Abschirmelementen 9 je eine Sensoreinrichtung 13, 14 angeordnet. Aufgrund der erfaßten Temperaturverläufe ist eine Asymmetrie der Temperaturverläufe über die Bandbreite b in Transportrichtung x gesehen vor und hinter den Abschirmelementen 9 erfaßbar. Die entsprechenden Asymmetrien werden einer Regeleinrichtung 15 eingegeben, die den Verstellantrieben 10 zugeordnet ist. Die Regeleinrichtung 15 ermittelt dann entsprechende Verstellungen für die Abschirmelemente 9, so daß die Asymmetrien der Temperaturverläufe vor und hinter den Abschirmelementen 9 kompensiert werden.To record the temperature profiles is in front of and behind the shielding elements 9 each have a sensor device 13, 14 arranged. Because of the recorded temperature profiles is an asymmetry of the temperature profiles over the bandwidth b in Transport direction x seen in front of and behind the shielding elements 9 detectable. The corresponding asymmetries are entered into a control device 15, which is assigned to the adjustment drives 10. The control device 15 determines then appropriate adjustments for the shielding elements 9, so that the Asymmetries of the temperature profiles in front of and behind the shielding elements 9 be compensated.

Außerhalb der Metallbandbreite b fällt die von den Sensoreinrichtungen 13, 14 erfaßte Temperatur abrupt ab. Durch entsprechende Auswertung des erfaßten Temperaturverlaufs kann daher auch ein Abstand d der Bandmitte 5 von der Rollgangmitte 3 erfaßt bzw. ermittelt werden. Auch dieser Abstand d kann durch die asymmetrische Verstellung der Abschirmelemente 9 kompensiert werden.Outside the metal bandwidth b, that of the sensor devices 13, 14 falls detected temperature abruptly. By appropriate evaluation of the recorded The temperature profile can therefore also be a distance d between the belt center 5 and the roller table center 3 are detected or determined. This distance d can also be determined by the asymmetrical adjustment of the shielding elements 9 can be compensated.

Wie bereits erwähnt, weist das Metallband 2 einen Bandanfang 4 auf. Vor dem Einlaufen des Bandanfangs 4 in den Rollgang werden der Regeleinrichtung 15 und damit indirekt den Verstellantrieben 10 von einer Steuereinheit 16 Voreinstellungen vorgegeben, auf welche die Abschirmelemente 9 vorab einzustellen sind. Nach dem Einlaufen des Bandanfangs 4 in den Rollgang werden die Abschirmelemente 9 dann von den Verstellantrieben 10 entsprechend den erfaßten Asymmetrien der Temperaturverläufe und entsprechend dem erfaßten Abstand d auf Nacheinstellungen verstellt. Die Nacheinstellungen werden von der Regeleinrichtung 15 der Steuereinheit 16 übermittelt. Die Steuereinheit 16 modifiziert dann anhand der Nacheinstellungen die Voreinstellungen. Bei Durchlaufen eines weiteren Metallbandes werden die Abschirmelemente 9 dann vorab auf die modifizierten Voreinstellungen eingestellt. Somit ergibt sich ein selbstlemendes Verhalten des Verstellverfahrens.As already mentioned, the metal strip 2 has a strip start 4. Before the When the beginning of the strip 4 enters the roller table, the control device 15 and thus indirectly the adjustment drives 10 from a control unit 16 default settings predetermined to which the shielding elements 9 are to be set in advance. After the beginning of the band 4 in the roller table, the shielding elements 9 then by the adjustment drives 10 according to the detected asymmetries the temperature profiles and in accordance with the detected distance d Readjustments adjusted. The readjustments are made by the control device 15 transmitted to the control unit 16. The control unit 16 then modifies the presettings based on the subsequent settings. When going through another Metal strip, the shielding elements 9 are then modified in advance Presets set. This results in self-learning behavior the adjustment procedure.

Figur 3 zeigt schematisch die Ermittlung der Einstellungen für die Abschirmelemente 9. Gemäß Figur 3 sind die Sensoreinrichtungen 13, 14 mit Korrekturwertermittlern 17, 18 verbunden. Die Korrekturwertermittler 17, 18 ermitteln aus der erfaßten Temperaturverteilung vor bzw. hinter den Abschirmelementen 9 einen Asymmetriewert für die Randbereiche 6 und daraus eine Verstellasymmetrie für die Abschirmelemente 9.Figure 3 shows schematically the determination of the settings for the shielding elements 9. According to FIG. 3, the sensor devices 13, 14 have correction value detectors 17, 18 connected. The correction value determiner 17, 18 determine from the detected temperature distribution in front of or behind the shielding elements 9 a Asymmetry value for the edge areas 6 and from this an adjustment asymmetry for the shielding elements 9.

Die Sensoreinrichtung 13 ist ferner mit einem Bandlagenermittler 19 verbunden. Dieser ermittelt aus dem erfaßten Temperaturverlauf den Abstand d der Bandmitte 5 von der Rollgangmitte 3.The sensor device 13 is also connected to a belt position detector 19. This determines the distance d from the center of the strip from the recorded temperature profile 5 from the center of the roller table 3.

Die ermittelten Korrekturwerte sowie der ermittelte Abstand werden der Regeleinrichtung 15 vorgegeben. Der Regeleinrichtung 15 werden ferner von der Steuereinheit 16 Voreinstellungen vorgegeben. Die Regeleinrichtung 15 ermittelt dann entsprechende Verstellungen für die Abschirmelemente 9. Diese neu ermittelten Einstellungen (Nacheinstellungen) werden nach einer Stabilisierungsphase an die Steuereinheit 16 zurückübermittelt, so daß diese die Voreinstellungen entsprechend modifizieren kann.The determined correction values and the determined distance are the control device 15 specified. The control device 15 are also used by the control unit 16 default settings. The control device 15 then determines corresponding adjustments for the shielding elements 9. These newly determined Settings (readjustments) are sent to the after a stabilization phase Control unit 16 transmitted back, so that this the default settings can modify.

Gemäß den Figuren 1 und 2 sind die Abschirmelemente 9 als einfache Prallbleche 9 ausgebildet, die mittels der Gewindespindeln 11 verstellt werden. Es sind aber auch andere Ausgestaltungen denkbar. So sind beispielsweise gemäß Figur 4 die Abschirmelemente 9 als Längsrinnen 9 ausgebildet, die in Transportrichtung x verlaufen. Das von ihnen aufgefangene Kühlmedium 8 wird Querrinnen 20 zugeführt, die quer zur Transportrichtung x verlaufen. Von diesen wird das Kühlmedium 8 dann nach außen abgeführt. Wie aus Figur 4 ferner ersichtlich ist, sind die Querrinnen 20 zwischen den Verstellantrieben 10 und dem Rollgang angeordnet. Auch werden gemäß Figur 4 die Abschirmelemente 9 statt über Gewindespindeln 11 über Rollenkettenantriebe 21 verstellt. Die Querrinnen 20 schützen die Verstellantriebe 10 und/oder die Verstellelemente 11 bzw. 21 vor Überhitzung und vor eventuellen Hochgehern des Bandanfangs 4. Eine Befestigung sowie die Verstellung der Abschirmelemente 9 kann gemäß Figur 4 in Transportrichtung x gesehen an zwei Positionen erfolgen.According to FIGS. 1 and 2, the shielding elements 9 are simple baffle plates 9 formed, which are adjusted by means of the threaded spindles 11. There are but other configurations are also conceivable. For example, according to FIG 4, the shielding elements 9 are formed as longitudinal channels 9, which are in the transport direction x run. The cooling medium 8 collected by them is fed to transverse channels 20, that run across the transport direction x. Of these, the cooling medium 8 then discharged to the outside. As can also be seen from FIG. 4, the Transverse channels 20 are arranged between the adjustment drives 10 and the roller table. According to FIG. 4, the shielding elements 9 are also used instead of via threaded spindles 11 adjusted via roller chain drives 21. The transverse channels 20 protect the adjustment drives 10 and / or the adjusting elements 11 and 21 before overheating and before possible ascent of the beginning of the band 4. A fastening and the adjustment the shielding elements 9 can be seen according to FIG. 4 in the transport direction x done in two positions.

Gemäß Ausführungsbeispiel sind die Abschirmelemente 9 über den Rollgang angeordnet. Prinzipiell wäre es aber auch möglich, eine derartige Abschirmanordnung unterhalb des Rollgangs anzuordnen. According to the exemplary embodiment, the shielding elements 9 are arranged over the roller table. In principle, however, it would also be possible to use such a shielding arrangement to be arranged below the roller table.

BezugszeichenlisteReference list

11
TransportrollenTransport rollers
22nd
MetallbandMetal strap
33rd
RollgangmitteMiddle of the roller table
44th
BandanfangBand start
55
BandmitteBand
66
RandbereicheMarginal areas
77
KühlstreckeCooling section
88th
KühlmediumCooling medium
99
AbschirmelementeShielding elements
1010th
VerstellantriebeActuators
1111
GewindespindelnThreaded spindles
1212th
DifferentialgetriebeDifferential gear
13, 1413, 14
SensoreinrichtungenSensor devices
1515
RegeleinrichtungControl device
1616
SteuereinheitControl unit
17, 1817, 18
KorrekturwertermittlerCorrection value determiner
1919th
BandlageermittlerBelt position determiner
2020th
QuerrinnenCross gutters
2121
RollenkettenantriebeRoller chain drives
bb
BandbreiteBandwidth
dd
Abstanddistance
xx
TransportrichtungDirection of transport

Claims (17)

Verstellverfahren für zwei Abschirmelemente (9), wobei ein Metallband (2) mit einer Metallbandbreite (b), einer Bandmitte (5) und Randbereichen (6) auf einem Rollgang mit einer Rollgangmitte (3) in einer Transportrichtung (x) transportiert wird, wobei das Metallband (2) über die Metallbandbreite (b) einen Temperaturverlauf aufweist, wobei mittels der Abschirmelemente (9) ein Kühlmedium (8) von den Randbereichen (6) des Metallbandes (2) abgeschirmt wird, wobei die Abschirmelemente (9) derart verstellt werden, daß der Temperaturverlauf in Transportrichtung (x) gesehen hinter den Abschirmelementen (9) einem Solltemperaturverlauf angenähert wird, dadurch gekennzeichnet,
daß die Abschirmelemente (9) bezüglich der Rollgangmitte (3) asymmetrisch verstellt werden.Adjustment method for two shielding elements (9), wherein a metal belt (2) with a metal belt width (b), a belt center (5) and edge areas (6) is transported on a roller table with a roller table center (3) in a transport direction (x), the metal strip (2) having a temperature profile over the metal strip width (b), wherein a cooling medium (8) is shielded from the edge regions (6) of the metal strip (2) by means of the shielding elements (9), the shielding elements (9) being adjusted in such a way that the temperature profile seen in the transport direction (x) behind the shielding elements (9) is approximated to a target temperature profile, characterized,
that the shielding elements (9) are adjusted asymmetrically with respect to the roller table center (3). Verstellverfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß ein Abstand (d) der Bandmitte (5) von der Rollgangmitte (3) erfaßt wird und der Abstand (d) durch die asymmetrische Verstellung der Abschirmelemente (9) kompensiert wird.Adjustment method according to claim 1,
characterized,
that a distance (d) of the belt center (5) from the roller table center (3) is detected and the distance (d) is compensated for by the asymmetrical adjustment of the shielding elements (9). Verstellverfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß eine Asymmetrie des Temperaturverlaufs über die Bandbreite (b) in Transportrichtung (x) gesehen vor den Abschirmelementen (9) erfaßt wird und die Asymmetrie durch die asymmetrische Verstellung der Abschirmelemente (9) kompensiert wird. Adjustment method according to claim 1 or 2,
characterized,
that an asymmetry of the temperature profile over the bandwidth (b) in the transport direction (x) is detected in front of the shielding elements (9) and the asymmetry is compensated for by the asymmetrical adjustment of the shielding elements (9). Verstellverfahren nach Anspruch 1, 2 oder 3,
dadurch gekennzeichnet,
daß eine Asymmetrie des Temperaturverlaufs über die Bandbreite (b) in Transportrichtung (x) gesehen hinter den Abschirmelementen (9) erfaßt wird und die Asymmetrie durch die asymmetrische Verstellung der Abschirmelemente (9) kompensiert wird.Adjustment method according to claim 1, 2 or 3,
characterized,
that an asymmetry of the temperature profile over the bandwidth (b) seen in the transport direction (x) is detected behind the shielding elements (9) and the asymmetry is compensated for by the asymmetrical adjustment of the shielding elements (9). Verstellverfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß die Abschirmelemente (9) von je einem eigenen Verstellantrieb (10) mechanisch unabhängig voneinander verstellt werden.Adjustment method according to one of claims 1 to 4,
characterized,
that the shielding elements (9) are each mechanically adjusted independently of one another by a separate adjustment drive (10). Verstellverfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß die Abschirmelemente (9) bezüglich der Rollgangmitte (3) von einen Verstellantrieb (10) mechanisch symmetrisch und von einem anderen Verstellantrieb (10) mechanisch antisymmetrisch verstellt werden.Adjustment method according to one of claims 1 to 4,
characterized,
that the shielding elements (9) are adjusted mechanically symmetrically with respect to the center of the roller table (3) by an adjustment drive (10) and mechanically antisymmetrically by another adjustment drive (10). Verstellverfahren nach Anspruch 5 oder 6,
dadurch gekennzeichnet, daß das Metallband (2) einen Bandanfang (4) aufweist, daß vor dem Einlaufen des Bandanfangs (4) in den Rollgang den Verstellantrieben (10) von einer Steuereinheit (16) Voreinstellungen vorgegeben werden, daß nach dem Einlaufen des Bandanfangs (4) in den Rollgang die Abschirmelemente (9) von den Verstellantrieben (10) auf Nacheinstellungen verstellt werden, daß die Nacheinstellungen der Steuereinheit (16) übermittelt werden und daß die Steuereinheit (16) anhand der Nacheinstellungen die Voreinstellungen modifiziert. Adjustment method according to claim 5 or 6,
characterized, that the metal band (2) has a band beginning (4), that a control unit (16) presets the adjusting drives (10) before the beginning of the belt (4) into the roller table, that after the beginning of the belt (4) in the roller table, the shielding elements (9) are adjusted to readjustments by the adjustment drives (10), that the readjustments of the control unit (16) are transmitted and that the control unit (16) modifies the presettings on the basis of the readjustments. Rollgang mit einer Rollgangmitte (3) zum Transportieren eines Metallbandes (2) mit einer Metallbandbreite (b) und einer Bandmitte (5) in einer Transportrichtung (x), wobei mittels Abschirmelementen (9) ein Kühlmedium (8) von Randbereichen (6) des Metallbandes (2) abschirmbar ist, dadurch gekennzeichnet, daß die Abschirmelemente (9) von Verstellantrieben (10) bezüglich der Rollgangmitte (3) asymmetrisch verstellbar sind.Roller table with a roller table center (3) for transporting a metal strip (2) with a metal strip width (b) and a strip center (5) in a transport direction (x), with a cooling medium (8) from edge areas (6) of the Metal strip (2) can be shielded, characterized in that the shielding elements (9) of adjustment drives (10) can be adjusted asymmetrically with respect to the center of the roller table (3). Rollgang nach Anspruch 8,
dadurch gekennzeichnet,
daß er eine Sensoreinrichtung (13) aufweist, mittels derer ein Abstand (d) der Bandmitte (5) von der Rollgangmitte (3) erfaßbar ist, und daß die Sensoreinrichtung (13) mit den Verstellantrieben (10) regeltechnisch gekoppelt ist.Roller table according to claim 8,
characterized,
that it has a sensor device (13), by means of which a distance (d) of the belt center (5) from the roller table center (3) can be detected, and that the sensor device (13) is coupled with the adjustment drives (10) in terms of control technology. Rollgang nach Anspruch 8 oder 9,
dadurch gekennzeichnet,
daß er eine Sensoreinrichtung (13) aufweist, mittels derer eine Asymmetrie des Temperaturverlaufs über die Bandbreite (b) in Transportrichtung (x) gesehen vor den Abschirmelementen (9) erfaßbar ist, und daß die Sensoreinrichtung (13) mit den Verstellantrieben (10) regeltechnisch gekoppelt ist.Roller table according to claim 8 or 9,
characterized,
that it has a sensor device (13) by means of which an asymmetry of the temperature profile over the bandwidth (b) in the transport direction (x) seen in front of the shielding elements (9) can be detected, and that the sensor device (13) with the adjustment drives (10) in terms of control technology is coupled. Rollgang nach Anspruch 8, 9 oder 10,
dadurch gekennzeichnet,
daß er eine Sensoreinrichtung (14) aufweist, mittels derer eine Asymmetrie des Temperaturverlaufs über die Bandbreite (b) in Transportrichtung (x) gesehen hinter den Abschirmelementen (9) erfaßbar ist, und daß die Sensoreinrichtung (14) mit den Verstellantrieben (10) regeltechnisch gekoppelt ist.Roller table according to claim 8, 9 or 10,
characterized,
that it has a sensor device (14) by means of which an asymmetry of the temperature profile over the bandwidth (b) in the transport direction (x) can be detected behind the shielding elements (9), and that the sensor device (14) with the adjustment drives (10) in terms of control technology is coupled. Rollgang nach einem der Ansprüche 8 bis 11,
dadurch gekennzeichnet,
daß die Abschirmelemente (9) bezüglich der Rollgangmitte (3) von dem einen Verstellantrieb (10) mechanisch symmetrisch und von dem anderen Verstellantrieb (10) mechanisch antisymmetrisch verstellbar sind.Roller table according to one of claims 8 to 11,
characterized,
that the shielding elements (9) can be adjusted mechanically symmetrically with respect to the center of the roller table (3) by one adjustment drive (10) and mechanically antisymmetric by the other adjustment drive (10). Rollgang nach einem der Ansprüche 8 bis 11,
dadurch gekennzeichnet,
daß die Abschirmelemente (9) von je einem eigenen Verstellantrieb (10) mechanisch unabhängig voneinander verstellbar sind.Roller table according to one of claims 8 to 11,
characterized,
that the shielding elements (9) are each mechanically adjustable independently of one another by a separate adjustment drive (10). Rollgang nach Anspruch 12 oder 13,
dadurch gekennzeichnet, daß er eine Steuereinheit (16) aufweist, mittels derer den Verstellantrieben (10) Voreinstellungen für die Abschirmelemente (9) vorgebbar sind, daß der Steuereinheit (16) von den Verstellantrieben (10) Nacheinstellungen übermittelbar sind, auf die die Abschirmelemente (9) von den Verstellantrieben (10) verstellt werden, und daß die Voreinstellungen von der Steuereinheit (16) anhand der Nacheinstellungen modifizierbar sind. Roller table according to claim 12 or 13,
characterized, that it has a control unit (16), by means of which the adjustment drives (10) can be given default settings for the shielding elements (9), that the control unit (16) can be transmitted from the adjustment drives (10) to which the shielding elements (9) are adjusted by the adjustment drives (10), and that the default settings of the control unit (16) can be modified on the basis of the subsequent settings. Rollgang nach einem der Ansprüche 8 bis 14,
dadurch gekennzeichnet,
daß die Abschirmelemente (9) über dem Rollgang angeordnet sind, daß die Abschirmelemente (9) als in Transportrichtung (x) verlaufende Längsrinnen ausgebildet sind und daß das Kühlmedium (8) von den Längsrinnen quer zur Transportrichtung (x) verlaufenden Querrinnen (20) zugeführt wird.Roller table according to one of claims 8 to 14,
characterized,
that the shielding elements (9) are arranged above the roller table, that the shielding elements (9) are designed as longitudinal channels running in the transport direction (x) and that the cooling medium (8) is fed from the longitudinal channels transverse to the transport direction (x) transverse channels (20) becomes. Rollgang nach Anspruch 15,
dadurch gekennzeichnet,
daß die Querrinnen (20) zwischen den Verstellantrieben (10) und dem Rollgang angeordnet sind.Roller table according to claim 15,
characterized,
that the transverse channels (20) are arranged between the adjustment drives (10) and the roller table. Rollgang nach einem der Ansprüche 8 bis 16,
dadurch gekennzeichnet,
daß die Abschirmelemente (9) von den Verstellantrieben (10) über Gewindespindeln (11), Rollenkettenantriebe (21) oder Hebelgestänge verstellbar sind.Roller table according to one of claims 8 to 16,
characterized,
that the shielding elements (9) from the adjustment drives (10) via threaded spindles (11), roller chain drives (21) or lever linkages are adjustable.
EP00119517A 1999-09-10 2000-09-07 Adjustment method for two shielding elements and associated roller table Expired - Lifetime EP1083010B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19943288 1999-09-10
DE19943288A DE19943288A1 (en) 1999-09-10 1999-09-10 Adjustment procedure for two shielding elements and associated roller table

Publications (3)

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EP1083010A2 true EP1083010A2 (en) 2001-03-14
EP1083010A3 EP1083010A3 (en) 2003-10-08
EP1083010B1 EP1083010B1 (en) 2005-09-07

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ID=7921476

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Application Number Title Priority Date Filing Date
EP00119517A Expired - Lifetime EP1083010B1 (en) 1999-09-10 2000-09-07 Adjustment method for two shielding elements and associated roller table

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US (1) US6368428B1 (en)
EP (1) EP1083010B1 (en)
JP (1) JP2001105017A (en)
AT (1) ATE303874T1 (en)
DE (2) DE19943288A1 (en)
ES (1) ES2247999T3 (en)

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WO2010006750A3 (en) * 2008-07-12 2010-03-25 Sms Siemag Ag Method for longitudinally guiding rolling stock, especially a hot-rolled steel strip, and hot-rolling mill for carrying out said method

Also Published As

Publication number Publication date
JP2001105017A (en) 2001-04-17
ATE303874T1 (en) 2005-09-15
EP1083010A3 (en) 2003-10-08
EP1083010B1 (en) 2005-09-07
DE19943288A1 (en) 2001-03-15
DE50011101D1 (en) 2005-10-13
ES2247999T3 (en) 2006-03-16
US6368428B1 (en) 2002-04-09

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