EP2315636A2 - Procédé pour le réglage d'un effort de traction d'une bande, dispositif de commande et/ou de régulation, support de mémoire, code de programme pour l'exécution du procédé et installation industrielle pour l'usinage de bandes - Google Patents

Procédé pour le réglage d'un effort de traction d'une bande, dispositif de commande et/ou de régulation, support de mémoire, code de programme pour l'exécution du procédé et installation industrielle pour l'usinage de bandes

Info

Publication number
EP2315636A2
EP2315636A2 EP09780684A EP09780684A EP2315636A2 EP 2315636 A2 EP2315636 A2 EP 2315636A2 EP 09780684 A EP09780684 A EP 09780684A EP 09780684 A EP09780684 A EP 09780684A EP 2315636 A2 EP2315636 A2 EP 2315636A2
Authority
EP
European Patent Office
Prior art keywords
tension
roller assembly
roller
control
band
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
EP09780684A
Other languages
German (de)
English (en)
Other versions
EP2315636B1 (fr
Inventor
Ralf Smukalski
Hans-Joachim Felkl
Wilfried Tautz
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to PL09780684T priority Critical patent/PL2315636T3/pl
Publication of EP2315636A2 publication Critical patent/EP2315636A2/fr
Application granted granted Critical
Publication of EP2315636B1 publication Critical patent/EP2315636B1/fr
Active 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
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48—Tension control; Compression control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48—Tension control; Compression control
    • B21B37/52—Tension control; Compression control by drive motor control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/08—Braking or tensioning arrangements
    • B21B39/082—Bridle devices

Definitions

  • the invention relates to a method for adjusting a tensile stress of a strip. Furthermore, the invention relates to a control and / or regulating device for carrying out the method, a program code, a storage medium and an industrial plant for processing strip, in particular metal strip.
  • Roller composites as used in the present invention are used, for example, in rolling metal strip, especially cold rolling, and in treatment lines, such as e.g. used in the coating, pickling, heating or similar processes of metal strips.
  • These roller assemblies are used to adjust the belt tension for a metal belt to be machined.
  • the belt tension substantially influences the machining process, for example the decrease in thickness during rolling of a rolling stock. Often these are also referred to as a tensioning roller set.
  • roll composites can also be used in the textile industry, for example for textile tapes or in the plastic guide for plastic tapes, and thus also the method mentioned above.
  • the slippage of the belt, in particular metal strip brings along with the occurring process errors during rolling further disadvantages. If, for example, a metal strip undetected slips over a roll for a prolonged period of time, the usually existing special coating of the slipping roll may become worn. As a result, the coefficient of friction of the roller shell surface is reduced and the problems occurring in the rolling process are further enhanced. Furthermore, the damaged roll - after discovery - replaced. This leads to additional costs, since possibly due to the required change of the damaged roll a plant downtime is required.
  • Slipping rollers can also lead to a significant loss of quality in the metal band produced or treated or to be treated. Due to the slipping of the metal strip over a roller, its surface can be damaged, which possibly leads to rejects, however, at least, which leads to economic losses for the operator.
  • the invention has for its object to provide a method, a device and a program code by means of which a slippage of tape in a belt processing plant can be reduced or avoided.
  • the procedural part of the object is achieved by a method for adjusting a tension of a belt, in particular metal strip, wherein the belt is guided simultaneously by means of a first roller assembly and by means of a second roller assembly, wherein each determines an actual train ratio for the first and the second roller assembly is, wherein the actual train ratios of the first and second roller assembly are adjusted by means of a change in the tension of the band between the roller assemblies such that the respective actual train ratio of a respective predetermined target train ratio of the first and second roller assembly is approximated.
  • the specification of the desired train ratios can be static or dynamic.
  • used target train ratios are dynamic, i. adapted at least in each case to the material passing through the plant.
  • the desired train ratios can be made as a function of the design of the roller assemblies used with regard to tension transmission and / or as a function of the drives assigned to the roller assemblies.
  • the rollers of the roller assembly each have a wrap angle of at least 30 ° in normal operation.
  • the rollers do not serve for a plastic deformation of the belt, as is the case for example when rolling by means of rollers.
  • a band engagement of the roller assembly at a certain point usually takes place only from one side of the band and not simultaneously from opposite hinge sides.
  • the band can be provided, such as a tape storage, or it can also take place only a transport of the tape between the roller assemblies, without another function for the system except the translation of the band trains and the transport of the band is reached.
  • the method can be used for more than two roller assemblies.
  • it is already advantageous in the use of two Rollenverbunden applicable.
  • the method can be carried out particularly advantageously as a control and / or regulating method.
  • the method can also be used outside of the metal industry, for example in the paper industry, the textile industry and the plastics industry, in particular wherever band-shaped goods have to be processed in industry.
  • the process can be implemented easily for existing plants and thereby contribute to a significant improvement in the operation of old plants in the context of plant modernization.
  • the tension is changed such that the desired train ratios of the first and the second roller assembly are substantially equal.
  • a distribution of the total load on the drives of the roller assemblies is achieved, which is particularly advantageous.
  • belt slipping can be avoided particularly well.
  • the absolute and / or relative train ratio is used as Buchüberech.
  • a quotient of the higher intended for the roll compound target strip tension and the lower intended for the same role composite target strip tension or the quotient of higher applied to the roller assembly actual strip tension and the lower applied to the same role composite actual strip tension is understood
  • relative train translation is understood to mean a quotient which relates an absolute train ratio of a group of roles to its maximum absolute train ratio. For example, the following relationship can be used for the relative actual / desired train ratio:
  • the maximum absolute tension ratio is a characteristic of the role grouping used and is usually specified by the supplier or manufacturer of the role grouping.
  • the use of the relative Buchwald Anlagen in the above-described approach is advantageous.
  • the tensile stress is changed on the basis of the relative actual tensile ratios of the first and second roller assemblies and / or the band tension applied to the first and / or second roller assemblies. This can be done throughout the process. tion of the metal strip, which passes through the roller assemblies, a possible advantageous Glasberger GmbH be set for the respective role of composites.
  • a tension setting is set as directly as possible between the roller assemblies, which increases the process reliability and the speed of the method.
  • the tension of the band between the roller assemblies is set to a value substantially equal to the geometric mean of an inlet side band tensioner in the mass flow direction of the second
  • the tension of the belt between the roller assemblies is changed based on a deviation of the relative actual train ratios of the first and second roller assemblies.
  • the change in the tensile stress is effected by means of a redistribution of a drive load between the drives assigned to the first and second roller assemblies.
  • the device-related part of the object is achieved by means of a control and / or regulating device for an industrial plant, in particular rolling mill and / or treatment line, with machine-readable program code, which comprises control commands which, when executed, the control and / or regulating device for To carry out the method according to one of claims 1 to 7.
  • the part of the object to be assigned to the program code is achieved by a machine-readable program code for a control and / or regulating device for a roller assembly of an industrial plant, such as a rolling mill and / or a treatment line, for processing strip, in particular metal strip, the program code having control commands, which cause the control and / or regulating device for carrying out the method according to one of claims 1 to 7.
  • the device-related part of the object is achieved by a storage medium with a machine-readable program code stored thereon according to claim 9.
  • the device-related part of the object is also achieved by an industrial plant, in particular rolling mill and / or treatment line, with a first roller assembly and a second roller assembly in each case for adjusting a belt tension of one of these simultaneously guided band, with a control and / or regulating device according to claim 8, wherein the control and / or regulating device with the first and / or second roller assembly for the control and / or regulation, in particular of the respective roller assemblies associated drives, is operatively connected.
  • FIG 1 shows an industrial plant, suitable for carrying out the method according to the invention
  • FIG 2 is a schematic flow diagram for exemplary
  • 1 shows a section of an industrial plant 1, in particular a treatment line for processing metal strip B.
  • the plant comprises a rolling zone 5 with a roll stand
  • a belt tension measuring device 7 in the form of a measuring roller.
  • the belt tension of the brought up from the rolling band band is detected.
  • rolling in the rolling zone 5 requires a high strip tension in order to avoid problems in processing the metal strip B.
  • a considered section of the metal strip B is guided through a first roller assembly 2, with which the tensile stress of the metal strip B can be adjusted. After passing through the first roller assembly 2, the belt tension can be detected again with another belt tension measuring device 7.
  • the band memory 4 is an exemplary unit which is arranged between the first roller assembly 2 and a second roller assembly 3, which is arranged downstream of the band storage 4.
  • a further tape tension measuring device 7 is arranged between the tape storage 4 and the second roller assembly 3.
  • the belt tension or the strip tension of the metal strip B entering the second roller assembly 3 can be detected.
  • the metal strip B is guided by the second roller assembly 3, wherein the second roller assembly 3, a further belt tension measuring device 7 is arranged downstream. This makes it possible to detect the band tension of the expiring from the second Rollverbund 3 metal strip B.
  • This arrangement of belt tension measuring devices 7 according to FIG. 1 is advantageous, since in this way actual train ratios for the first and second roller assemblies 2 and 3 are easy to determine.
  • FIG. 1 The detail of a treatment line 1 shown in FIG. 1 also shows a control and regulating device 8, which is operatively connected to the above-mentioned belt tension measuring devices 7 and to the drives of the first and second roller assemblies 2 and 3, respectively.
  • the control and regulating device 8 are supplied by means of the belt tension measuring devices 7 respectively before and after the first and second roller assembly 2 and 3 detected band tension. The control and regulating device 8 then determines therefrom the absolute and relative actual train ratios for the first and second roller assemblies 2 and 3, respectively.
  • the absolute actual tensile ratio is determined, for example, as a quotient of a higher actual strip tension and a lower actual strip tension or as a quotient of a higher target tension and a lower target tension.
  • the relative Buchwalder can advantageously the quotient with a counter consisting of a product with the first factor formed of absolute Buchüber Anlagen minus one and the second factor 100 and the denominator of the quotient formed from the maximum absolute train ratio minus one.
  • the relative train ratio is zero, and at an absolute actual train ratio equal to the maximum absolute actual train ratio, the relative train ratio is 100.
  • control and / or regulating device changes the relative actual train ratios in the direction of desired, desired relative train ratios for the respective roller assemblies 2 or 3 off.
  • the rolling region 5 shown in FIG. 1 is a high-tensile region, a high ribbon tension must be maintained in it so that the upstream rolling can take place. If there is a drop in the belt tension in the high-tension area in order to adjust the relative tension ratios of the roller assemblies 2 and 3, respectively. This can cause a variety of problems, such as banding and tension oscillations.
  • the belt tension in a pull-down region can not be increased as desired. If the belt tension was increased here in order to match the relative tensile ratios of the roller assemblies 2 and 3, this could lead to scratches on the belt or mechanical damage to the equipment.
  • the change in the tension for the belt section arranged between the rollers is preferably carried out in such a way that the relative tension ratios of the first and second roller assemblies 2 and 3 are set substantially to a same value. This ensures the best possible distribution of the total load between the drive loads of the motors 11 or drives driving the roller assemblies, as a result of which belt slippage can be avoided.
  • FIG. 2 shows a flow chart for the schematic representation of the sequence of an embodiment of the method according to the invention.
  • the flowchart shown in FIG 2 assumes that the industrial plant 1 of FIG 1 is in operation and metal strip B is passed through the industrial plant 1. If device designations with reference numbers are mentioned below, they refer to devices shown in FIG.
  • the tape tension of the tape is on the input side and output side of the respective roller assembly 2 and 3 mit- Tels of each existing tape tension measuring devices 7 detected.
  • an absolute actual tension ratio for the respective roller assembly 2 or 3 is determined by the higher tape tension or actual tape tension on the respective roller assembly 2 or 3 by the lower voltage applied to this tape tension or actual tape tension, recorded in the Process steps 20, 21, 22 and 23, respectively.
  • the now present absolute actual train ratio for the respective roller assembly 2 or 3 is now set in relation to the maximum absolute train ratio for the respective roller assembly, which may be allowed to exist at most on the Rolleverbund 2 or 3.
  • the maximum absolute tension ratio can be different or equal for the first roller assembly 2 and the second roller assembly 3. This is a technical design and specification of the respective roller combination 2 or 3.
  • a method step 26 it is then checked whether the determined relative actual train ratio deviates from a predetermined relative desired train ratio.
  • the relative target train ratios for the roller assemblies 2 and 3 are predetermined such that they are the same for the first and second roller assemblies 2 and 3 respectively. If there is no deviation of the actual train ratios from the relative nominal train ratios of the roller assemblies 2 or 3, the method is started anew, ie the belt tension on the inlet side and outlet side for the respective roller composite 2 or 3 is determined by means of the belt tension measuring device. 7.
  • a deviation of the relative actual tension ratio from the relative nominal tension ratio of the respective roller composite 2 or 3 is given, then in a method step 27 a tension is determined for the band between the roller assemblies 2 or 3, so that the deviation between the actual train translations is reduced from the desired train translations.
  • the tension to be set between the roller assemblies 2 or 3 or a change in tension between the roller assemblies 2 and 3 to be set can be determined differently in method step 27.
  • the tensile stress for lenverbunden 2 and 3 arranged band area particularly simple as geometric means from the current inlet side strip tension of the first roller 2 and the current outfeed-side strip tension of the second roller assembly 3 according to FIG 1 ermit- telt be determined.
  • first roller assembly 2 and the second roller assembly 3 have different maximum absolute train ratios, for example due to constructive differences, then the change in tension between the roller assemblies 2 or 3 can preferably be adjusted by means of a PI controller.
  • Input value for this PI controller is a measure of the deviation of the relative actual train ratios of the two roller assemblies 2 and 3 respectively.
  • the PI controller preferably regulates the change in tension between the roller assemblies 2 and 3, respectively, such that the relative actual tensile ratios of the first and second roller assemblies 2 and 3, respectively, match each other.
  • the adjustment of the tensile stress in the band region of the band B between the roller assemblies 2 and 3 takes place in a method step 28 by changing the distribution of the drive loads of the drives or motors 11 associated with the roller assemblies.
  • the process is carried out until the processing of the metal strip B in the treatment line 1 of FIG. 1 is completed. Whether the method is to be terminated is queried in the exemplary embodiment after each run of the method in a method step 29.
  • the strip runs are preferably carried out continuously and temporally parallel to the processing of previously recorded strip passes and further processed, so that the highest possible measuring density and thus corresponding control accuracy of the method is ensured.
  • the method can also be advantageously used in modifications of the illustrated embodiment for an industrial plant for processing strip-shaped goods.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Control Of Metal Rolling (AREA)
  • Control Of Heat Treatment Processes (AREA)

Abstract

L'invention concerne une installation industrielle et des procédés pour régler un effort de traction d'une bande (B), en particulier d'une bande métallique. La bande (B) est guidée simultanément au moyen d'un premier système de rouleaux (2) et au moyen d'un deuxième système de rouleaux (3), une transmission de traction réelle étant respectivement déterminée (24, 25) pour le premier et le deuxième système de rouleaux (2, 3). Pour améliorer le fonctionnement d'une installation d'usinage de produits en forme de bandes, en particulier de bandes métalliques, les transmissions de traction réelles du premier et du deuxième système de rouleaux (2, 3) sont réglées par variation de l'effort de traction de la bande entre les systèmes de rouleaux (2, 3) de sorte que la transmission de traction réelle respective s'approche (26) d'une transmission de traction prescrite prédéfinie respective du premier et du deuxième système de rouleaux.
EP09780684.8A 2008-08-20 2009-07-16 Procédé pour le réglage d'un effort de traction d'une bande, dispositif de commande et/ou de régulation, support de mémoire, code de programme pour l'exécution du procédé et installation industrielle pour l'usinage de bandes Active EP2315636B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09780684T PL2315636T3 (pl) 2008-08-20 2009-07-16 Sposób nastawiania naprężenia rozciągającego taśmy, urządzenie sterujące i/lub regulujące, nośnik pamięci, kod programowy do realizacji tego sposobu oraz instalacja przemysłowa do obróbki taśmy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008038551A DE102008038551A1 (de) 2008-08-20 2008-08-20 Verfahren zur Einstellung eines Zugspannung eines Bandes, Steuer- und/oder Regeleinrichtung, Speichermedium, Programmcode zur Durchführung des Verfahrens und eine Industrieanlage zum Bearbeiten von Band
PCT/EP2009/059123 WO2010020486A2 (fr) 2008-08-20 2009-07-16 Procédé pour le réglage d'un effort de traction d'une bande, dispositif de commande et/ou de régulation, support de mémoire, code de programme pour l'exécution du procédé et installation industrielle pour l'usinage de bandes

Publications (2)

Publication Number Publication Date
EP2315636A2 true EP2315636A2 (fr) 2011-05-04
EP2315636B1 EP2315636B1 (fr) 2013-08-28

Family

ID=41566615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09780684.8A Active EP2315636B1 (fr) 2008-08-20 2009-07-16 Procédé pour le réglage d'un effort de traction d'une bande, dispositif de commande et/ou de régulation, support de mémoire, code de programme pour l'exécution du procédé et installation industrielle pour l'usinage de bandes

Country Status (7)

Country Link
EP (1) EP2315636B1 (fr)
CN (1) CN102123800B (fr)
BR (1) BRPI0918405A2 (fr)
DE (1) DE102008038551A1 (fr)
PL (1) PL2315636T3 (fr)
RU (1) RU2011110461A (fr)
WO (1) WO2010020486A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104785541A (zh) * 2015-03-27 2015-07-22 中冶南方工程技术有限公司 分段压辊式张应力分布控制装置

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Publication number Priority date Publication date Assignee Title
CN103223422B (zh) * 2012-01-30 2015-04-22 宝山钢铁股份有限公司 一种热连轧机机架间带钢张力波动的控制方法
RU2494828C1 (ru) * 2012-04-19 2013-10-10 Открытое акционерное общество "Магнитогорский металлургический комбинат" Способ автоматического регулирования натяжения полосы в черновой группе клетей непрерывного прокатного стана
CN103920714B (zh) * 2013-01-15 2016-06-29 宝山钢铁股份有限公司 平整轧制张力放大方法及装置
RU2620424C2 (ru) * 2015-10-21 2017-05-25 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Магнитогорский государственный технический университет им. Г.И. Носова" (ФГБОУ ВПО "МГТУ") Способ автоматического регулирования скорости горизонтальных и вертикальных валков универсальной клети стана горячей прокатки
RU2687354C1 (ru) * 2018-06-01 2019-05-13 федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" Способ согласования скоростей вертикальных и горизонтальных валков универсальной клети прокатного стана
CN111250550B (zh) * 2020-01-15 2022-03-18 首钢京唐钢铁联合有限责任公司 一种张力辊组的控制方法和控制系统

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JPS5942568B2 (ja) * 1978-12-15 1984-10-16 新日本製鐵株式会社 調質圧延設備の張力制御方法
JPS60231517A (ja) * 1984-05-02 1985-11-18 Toshiba Corp シングルスタンド圧延機の張力制御装置
JPH09225514A (ja) * 1996-02-23 1997-09-02 Kawasaki Steel Corp ルーパ設備の張力制御方法
DE102004043150A1 (de) * 2004-09-03 2006-03-09 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH Spannrolle für eine Bandbehandlungsanlage sowie Bandbehandlungsanlage und Verwendung der Spannrolle

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104785541A (zh) * 2015-03-27 2015-07-22 中冶南方工程技术有限公司 分段压辊式张应力分布控制装置
CN104785541B (zh) * 2015-03-27 2017-03-01 中冶南方工程技术有限公司 分段压辊式张应力分布控制装置

Also Published As

Publication number Publication date
EP2315636B1 (fr) 2013-08-28
CN102123800A (zh) 2011-07-13
PL2315636T3 (pl) 2014-01-31
CN102123800B (zh) 2013-06-26
BRPI0918405A2 (pt) 2015-11-24
WO2010020486A3 (fr) 2010-04-29
WO2010020486A2 (fr) 2010-02-25
DE102008038551A1 (de) 2010-02-25
RU2011110461A (ru) 2012-09-27

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