EP0698428B1 - Dispositif pour détecter l'emprise entre deux cylindres de travail d'une cage de laminoir - Google Patents

Dispositif pour détecter l'emprise entre deux cylindres de travail d'une cage de laminoir Download PDF

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Publication number
EP0698428B1
EP0698428B1 EP95109639A EP95109639A EP0698428B1 EP 0698428 B1 EP0698428 B1 EP 0698428B1 EP 95109639 A EP95109639 A EP 95109639A EP 95109639 A EP95109639 A EP 95109639A EP 0698428 B1 EP0698428 B1 EP 0698428B1
Authority
EP
European Patent Office
Prior art keywords
hydraulic cylinders
roll
working
roller
distance
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.)
Expired - Lifetime
Application number
EP95109639A
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German (de)
English (en)
Other versions
EP0698428A1 (fr
Inventor
Ansgar Dipl.-Ing. Grüss
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
Publication of EP0698428A1 publication Critical patent/EP0698428A1/fr
Application granted granted Critical
Publication of EP0698428B1 publication Critical patent/EP0698428B1/fr
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
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends

Definitions

  • the invention relates to a device for detecting the Roll gap between two work rolls of a roll stand with a roll stand and a work roll bending device, where each of a total of four work roll chocks, which support the work rolls at their ends, over two each, on opposite sides of the hydraulic cylinders arranged directly on the respective work roll are adjustable relative to the roller stand.
  • the rolling stock thickness As a controlled variable of interest, cannot be measured in terms of control technology at the point of its creation, namely the roll gap, and therefore cannot be used for the direct correction of faults, such as eccentricities of the rolls can be used.
  • the invention has for its object a largely direct Detection of the roll gap between the work rolls to enable a roll stand, being a roll stand with a work roll bending device, as for example from "Handbook of Manufacturing Technology", Volume 2/1, Carl Hanser Verlag, 1983, page 453, picture 80 is.
  • the object is achieved in that position transmitters are installed in the hydraulic cylinders in the device of the type specified at the outset, and in that the position transmitters are followed by an evaluation device for determining the roll gap from the position values supplied by the position transmitters, the evaluation device being designed so that that it determines a common actual position value as a function of the position values s r and s l , the distance between the two hydraulic cylinders and the distance between the axis of the associated work roll and a line connecting the points of application of the hydraulic cylinders to the work roll chock .
  • Position sensors which are suitable for this measurement are disclosed in DE-A-1 602 195 or JP-A-61 199 506.
  • the roll stand shown in FIG. 1 consists of a roll stand 2, in which an upper and lower support roller 3 and 4 and two work rolls 5 and 6 are arranged.
  • the two Back-up rolls 3 and 4 are at their two ends via Morgoil bearings stored in backup roller chocks 7 and 8; the Both work rolls 5 and 6 are in corresponding work roll chocks 9 and 10 stored.
  • 1 shows that Roll stand 1 from its drive side, that is from the side, on which the rollers are driven so that only those on chocks 7 to 10 on this side can be seen.
  • the Back-up roll chocks 7 and 8 are in a window 11 of the roll stand 2 out.
  • a hydraulic adjusting device 13 is arranged between the upper crosshead 12 of the roller stand 2 and the chock 7 of the upper Back-up roller 3.
  • the chock 8 of the lower support roller 4 is via a wedge adjustment device 14 against the lower crosshead 15 of the roll stand 2 is supported.
  • each hydraulic cylinder 18 and 19 is a position transmitter 24 or 25 installed.
  • the axis 26 of the work roll 5 lies in the middle between the two hydraulic cylinders 18 and 19, the distance from each other designated x is.
  • the points of attack of the hydraulic cylinders 18 and 19 on the work roll chock 9 are designated 27 and 28.
  • FIG. 3 illustrates the geometric relationships on the work roll chock 9.
  • the distance r between the axis 26 of the work roll 5 and the connecting line 29 between the two points of attack 27 and 28 of the hydraulic cylinders 18 and 19 on the chock 9 is designated by r.
  • the position transmitter supplies a position value s l and the position transmitter 25 supplies a position value s r .
  • the block diagram in FIG. 4 shows a total of eight position transmitters 24, 25, 30, 31, 32, 33, 34 and 35, which are connected to an evaluation device 36.
  • the common position values s 01 to s 04 are calculated from the position values of two position transmitters and added to the values h A and h B for the roll gap.
  • the values h A and h B only have to take into account the comparatively small influences from the work roll back bend, the work roll eccentricity, the thermal work roll expansion and the elastic deformation of the work roll chocks.
  • the previously required additional calculations of the suspension of the back-up rolls and the eccentricity of the back-up rolls can be omitted.
  • the direct detection of the roll gap according to the invention enables a significantly more precise roll gap control to be implemented.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Claims (2)

  1. Dispositif de détection de l'emprise (23) entre deux cylindres (5, 6) de travail d'une cage (1) de laminoir comprenant une cage (2) de cylindre et un dispositif de cintrage de rouleau de travail, dans lequel chacune des empoises (9, 10) des cylindres de travail, au nombre de quatre en tout, qui portent à leurs extrémités les cylindres (5, 6) de travail, peuvent être réglées directement par rapport à la cage (2) de laminoir par respectivement deux vérins (18, 19, 20, 21) hydrauliques disposés sur des côtés opposés de chaque cylindre (5, 6) de travail,
    caractérisé
    en ce que dans les vérins (18, 19, 20, 21) hydrauliques sont montés des indicateurs (24, 25, 30 à 35) de position et en ce qu'en aval des indicateurs (24, 25 30 à 35) de position est prévu un dispositif (36) d'exploitation pour déterminer l'emprise à partir des valeurs (sl, sr) de position fournies par les indicateurs (24, 25, 30 à 35) de position, le dispositif (36) d'exploitation étant tel qu'il détermine une valeur réelle de position commune en fonction des valeurs sr et sl de position, de la distance entre les deux vérins (18, 19) hydrauliques et de la distance entre l'axe (26) du cylindre (5) de travail correspondant et une ligne (29) qui relie les points (27, 28) d'attaque des vérins (18, 19) hydrauliques à l'empoise (9) du cylindre de travail.
  2. Dispositif suivant la revendication 1,
    caractérisé
    en ce que le dispositif (36) d'exploitation détermine, à partir des valeurs sr et sl de position des indicateurs (24, 25) de position dans respectivement les deux vérins (18, 19) hydrauliques servant à déplacer l'empoise du cylindre de travail, une valeur réelle de position so = ½ (sr+sl)-[(sr-sl).r/x].tan[½ arctan ((sr-sl)/x)] x étant la distance entre les deux vérins (18, 19) hydrauliques et r la distance entre l'axe (26) du cylindre (5) de travail correspondant et une ligne (29) qui relie les points (27, 28) d'attaque des vérins (18, 19) hydrauliques à l'empoise (9) du cylindre de travail.
EP95109639A 1994-07-08 1995-06-21 Dispositif pour détecter l'emprise entre deux cylindres de travail d'une cage de laminoir Expired - Lifetime EP0698428B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4424153 1994-07-08
DE4424153 1994-07-08

Publications (2)

Publication Number Publication Date
EP0698428A1 EP0698428A1 (fr) 1996-02-28
EP0698428B1 true EP0698428B1 (fr) 1999-03-31

Family

ID=6522687

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95109639A Expired - Lifetime EP0698428B1 (fr) 1994-07-08 1995-06-21 Dispositif pour détecter l'emprise entre deux cylindres de travail d'une cage de laminoir

Country Status (2)

Country Link
EP (1) EP0698428B1 (fr)
DE (1) DE59505484D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022243425A1 (fr) 2021-05-21 2022-11-24 Sms Group Gmbh Procédé de fonctionnement d'une cage de laminage

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50214899D1 (de) 2001-12-12 2011-03-17 Sms Siemag Ag Einrichtung zur messung des walzspaltes zwischen arbeitswalzen eines kalt- oder warmwalzgerüstes
DE102005042837A1 (de) * 2005-08-26 2007-03-08 Sms Demag Ag Verfahren zur Dickenregelung beim Warmwalzen
DE102009060642A1 (de) * 2009-07-07 2011-01-13 Sms Siemag Ag 4-Rollen-/-Rollen/18HS Rollenwalzgerüst in Kassettenbauweise
DE102011078139A1 (de) 2011-06-07 2012-12-13 Sms Siemag Ag Messvorrichtung, Walzgerüst und Verfahren zum Erfassen der Höhe eines Walzspalts
CN104741385B (zh) * 2015-04-14 2017-02-01 中冶赛迪工程技术股份有限公司 一种四辊轧机的工作辊弯辊装置及弯辊力的控制方法
DE102022125630A1 (de) 2022-10-05 2024-04-11 Karlsruher Institut für Technologie, Körperschaft des öffentlichen Rechts Anordnung mit zwei voneinander unter Ausbildung eines Spaltes beabstandeten Walzen mit einem Spaltweitenmesssystem

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1190738A (en) * 1966-08-16 1970-05-06 United Eng Foundry Co Means for indicating the Roll Pass Opening in a Rolling Mill or Calender
US3733875A (en) * 1971-07-12 1973-05-22 Mesta Machine Co Work roll sensing and/or balancing arrangements
JPS57209710A (en) * 1981-06-16 1982-12-23 Sumitomo Metal Ind Ltd Plate thickness controlling method
JPS61199506A (ja) * 1985-02-28 1986-09-04 Ishikawajima Harima Heavy Ind Co Ltd 圧延機

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022243425A1 (fr) 2021-05-21 2022-11-24 Sms Group Gmbh Procédé de fonctionnement d'une cage de laminage
DE102021205275A1 (de) 2021-05-21 2022-11-24 Sms Group Gmbh Verfahren zum Betreiben eines Walzgerüstes

Also Published As

Publication number Publication date
EP0698428A1 (fr) 1996-02-28
DE59505484D1 (de) 1999-05-06

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