EP0483939B1 - Alignement de cylindres horizontaux - Google Patents

Alignement de cylindres horizontaux Download PDF

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Publication number
EP0483939B1
EP0483939B1 EP91250297A EP91250297A EP0483939B1 EP 0483939 B1 EP0483939 B1 EP 0483939B1 EP 91250297 A EP91250297 A EP 91250297A EP 91250297 A EP91250297 A EP 91250297A EP 0483939 B1 EP0483939 B1 EP 0483939B1
Authority
EP
European Patent Office
Prior art keywords
roller
upper roller
adjustment
stand
horizontal
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
EP91250297A
Other languages
German (de)
English (en)
Other versions
EP0483939A1 (fr
Inventor
Hans Sturm
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0483939A1 publication Critical patent/EP0483939A1/fr
Application granted granted Critical
Publication of EP0483939B1 publication Critical patent/EP0483939B1/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
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • 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
    • B21B38/105—Calibrating or presetting roll-gap

Definitions

  • the lower roller is first moved to the center of the roller, optical detection devices possibly determining the position of the lower roller.
  • the upper roller driven at creep speed against the lower roller is placed against the former, any inclined positions of the upper roller relative to the lower roller being detected by roller pressure differences on roller pressure load cells arranged on both sides of the upper roller.
  • the position of the top roller is corrected in accordance with this display.
  • the known method is unsuitable for the exact horizontal alignment because the position of the top roller is oriented to the position of the bottom roller and both may not be aligned horizontally if the bottom roller has not been positioned horizontally. A parallel roll nip is thereby obtained, which, however, can be inclined overall from the roll plane.
  • DE 24 54 896 A1 discloses a method for setting a parallel, open roll gap, in which forces corresponding to the adjusting drive means are applied to both roll sides.
  • the present invention is based on the object of a roll stand with roll adjustment devices for the top roller and roller adjustment devices for the bottom roller and displacement sensors for detecting the position of the roll adjustments of the top roller, the position data recorded being storable in the memory of a computer to be designed in such a way that an exact horizontal alignment of both horizontal rolls is possible with essentially available means and to find a corresponding method for carrying out this alignment and adjustment process.
  • a roll stand designed in this way enables a simple and inexpensive exact horizontal alignment of the top roll on the stop surfaces of the roll stand provided for this purpose and, via the geometrically defined points and the known dimensions of the roll stand and of the rolls, allows an exact detection of the position of the top roll.
  • the method according to the invention for aligning and adjusting the upper and lower horizontal roll to the center of the stand in a roll stand according to claim 1 is characterized by the method steps described in claim 2.
  • the present invention makes it possible to automatically align and set up the horizontal rolls of a horizontal or universal roll stand in such a way that the position of the top roll can be precisely defined via mechanical conditions and via the fixed and known position of the top roller the bottom roller can also be aligned horizontally.
  • 1 denotes the stand of a horizontal rolling stand, the top roller of which bears the position number 2a.
  • the upper roller 2a is mounted in the chock 3, which in turn is guided in the stand 1 in the horizontal direction.
  • the balancing cylinders 4 are used, of which at least two correspondingly trained ear-like projections 5 engage behind the chock.
  • stop surfaces can be seen in the stand 1, which are arranged at a precisely defined distance from the horizontal rolling center plane 7 at a distance a.
  • the connecting line between the stop faces 6 on both sides is exactly parallel to the rolling center plane 7.
  • FIG. 1 also shows the adjustment spindle for one side of the upper roller 2, which is numbered 9.
  • the adjusting spindle 9 is connected via a spherical bearing 10 to a hydraulic cylinder 11, which is cup-shaped and engages around the piston 12 formed on the extended adjusting spindle 9.
  • the hydraulic cylinder 11 or its piston 12 can be pressurized on both sides.
  • the distance of the stop surface 8 from the center 13 of the chock 3 is denoted by b; this distance is geometrically predetermined and known. Also known is the radius r of the top roller and thus the distance c in FIG. 1. This means that with a known distance a of the roller center plane to the stop surfaces 6 and with a known sum of the distances b and c in the abutting state of the contact surfaces 8 and 6 the position the top roller and its apex 14 and thus its distance (d) from the roller center plane 7 are exactly known. In addition, the exact horizontal position of the top roller is given solely by the geometric conditions when the stop surfaces 6 and 8 abut one another by the mechanical fixing of the stop surfaces 6.
  • the chocks of the top roller with 3a and 3b and the chocks of the bottom roller with 3c and 3d are mechanically precisely machined on their undersides, the dimension e being known as the distance between the contact surfaces of the lower adjusting spindles 15 on the contact surfaces 16 of the chocks 3c, 3d. With the distance f, the radius of the lower roller 2b and thus the distance from the center of the chocks 3c, 3d to the apex 14b of the lower roller is known.
  • the chock 3 in the stand 1 is raised until the stop surfaces 8 on the top of the ear-like projections 5 come to rest against the contact surfaces 6 on the stand 1.
  • a computer (not shown), the exact position of the top roller 2 relative to the stand 1 or the abutment surfaces 6 and the distance d between the apex 14 of the top roller 2 and the center plane 7 of the roller are calculated from the difference between dimension a and the sum of dimensions b and c.
  • the top roller 2 which is in an exactly horizontal position, is clamped against the balancing via the adjustment cylinders 11 of the adjustment spindles 9, and with the aid of the adjustment the top roller 2 is moved in parallel and in the direction of the center plane 7 of the roller.
  • the top roller is stopped about 2 mm before the center of the roll.
  • the lower roller 2b With the help of the lower setting 15, the lower roller 2b is now also moved in the direction of the center roll plane 7, the position of the apex 14b of the lower roller 2b being calculated from the dimensions e and f and ggis. the position of the adjusting spindle 15 is known. Since the known dimensions merely indicate the theoretical position of the apex 14b of the lower roller 2b, but do not take play and wear into account, it can be expected that the lower roller will not be stopped exactly in parallel and in the center plane 7 of the roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Control Of Metal Rolling (AREA)
  • Crushing And Grinding (AREA)

Claims (2)

  1. Cage de laminoir comportant des dispositifs de réglage de rouleau pour le rouleau supérieur (2a) et des dispositifs de réglage de rouleau pour le rouleau inférieur (2b), ainsi que des capteurs de course pour détecter la position des réglages du rouleau supérieur, les données de position détectées pouvant être stockées dans une mémoire d'un calculateur,
    caractérisée en ce que des surfaces de butée (6) sont prévues sur le bâti (1) de la cage de laminoir, surfaces de butée qui sont fixées dans leur position par rapport au plan horizontal central des rouleaux (7), en ce que des surfaces de butée (8) sont formées sur les pièces de montage (3) du rouleau supérieur (2a) à une distance fixe par rapport au centre horizontal de la pièce de montage (3), pièces de montage qui peuvent prendre appui, sans jeu, dans une position extrême horizontale, à l'aide d'un moyen d'équilibrage (4) du rouleau supérieur (2a) pouvant se déplacer perpendiculairement, contre les surfaces de butée (6) sur le bâti (1), et en ce que l'on obtient la position du sommet (14b) du rouleau inférieur (2b), à partir de la somme du rayon (f) du rouleau inférieur (2b) et de la distance (e) entre le plan central inférieur des pièces de montage et les surfaces de butée (16) des broches de réglage inférieures (15) sur les pièces de montage inférieures (3c, 3d), ou à partir de la position des broches de réglage (15) par rapport au plan central des rouleaux (7).
  2. Procédé pour l'alignement et le réglage automatiques des rouleaux horizontaux supérieur (2a) et inférieur (2b) dans le plan central des rouleaux (7), dans une cage de laminoir selon la revendication 1, dans lequel on utilise des capteurs de course pour détecter la position des rouleaux par rapport à la cage de laminoir et leurs positions réciproques, ainsi qu'un calculateur pour traiter les données de position,
    caractérisé par les étapes de procédé suivantes :
    a) Les pièces de montage (3) du rouleau supérieur (2a) sont amenées à l'aide du moyen d'équilibrage (4) contre les surfaces de butée (6) sur le bâti (1) de la cage de laminoir, jusqu'à ce que les surfaces de contre-butée (8) reposent sans jeu.
    b) On calcule la position du rouleau supérieur (2a) par rapport au plan central des rouleaux (7), à partir des localisations géométriques des surfaces de butée (6) et du rayon connu (r) du rouleau supérieur.
    c) Le rouleau supérieur (2a) aligné horizontalement de façon exacte est tendu contre le moyen d'équilibrage (4), par l'intermédiaire des cylindres de réglage (11) du réglage hydraulique.
    d) Le rouleau supérieur (2a) se déplace d'au moins 2 mm, en synchronisme horizontal, dans le plan central des rouleaux (7).
    e) Le rouleau inférieur (2b) est amené au centre théorique des rouleaux à l'aide des broches de réglage (15).
    f) Le rouleau supérieur (2a) est reposé sur le rouleau inférieur (2b) à l'aide de son moyen d'équilibrage (4), la course ainsi effectuée par chaque cylindre de réglage (11) étant détectée à l'aide de leur capteur de course et introduite dans le calculateur.
EP91250297A 1990-11-02 1991-10-30 Alignement de cylindres horizontaux Expired - Lifetime EP0483939B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4035276 1990-11-02
DE4035276A DE4035276C1 (fr) 1990-11-02 1990-11-02

Publications (2)

Publication Number Publication Date
EP0483939A1 EP0483939A1 (fr) 1992-05-06
EP0483939B1 true EP0483939B1 (fr) 1994-07-13

Family

ID=6417750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91250297A Expired - Lifetime EP0483939B1 (fr) 1990-11-02 1991-10-30 Alignement de cylindres horizontaux

Country Status (5)

Country Link
US (1) US5279139A (fr)
EP (1) EP0483939B1 (fr)
JP (1) JP3169405B2 (fr)
KR (1) KR100222057B1 (fr)
DE (2) DE4035276C1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19718529A1 (de) * 1997-05-02 1998-11-12 Schloemann Siemag Ag Verfahren zum Betreiben eines Walzwerks für das Warm- und Kaltwalzen von Flachprodukten
CA2287842C (fr) 1998-02-27 2005-03-22 Nippon Steel Corporation Procede de laminage de toles et laminoir
DE19831663A1 (de) * 1998-07-15 2000-01-20 Schloemann Siemag Ag Vorrichtung und Verfahren zur Ermittlung und Festlegung von Gerüstmitte und Anstellpositionen an Walzgerüsten
KR100510719B1 (ko) * 2002-02-05 2005-08-30 엘지.필립스 엘시디 주식회사 액정 표시 장치의 제조 방법
JP4214150B2 (ja) * 2003-03-20 2009-01-28 新日本製鐵株式会社 金属板材の圧延方法および圧延装置
US6983549B2 (en) * 2003-06-02 2006-01-10 Mark Vincent Loen Method to accurately measure small angular differences between surfaces
FR2877862B1 (fr) * 2004-11-12 2007-02-16 Vai Clecim Soc Par Actions Sim Procede de detection des vibrations d'une cage de laminoir
DE102009039501A1 (de) * 2009-08-31 2011-03-03 Sms Siemag Ag Verfahren zur Einstellung der Walzen eines Walzgerüsts und Walzgerüst
CN102319739B (zh) * 2011-10-19 2013-05-08 北京金自天正智能控制股份有限公司 二辊斜轧穿孔机辗轧角调整装置
DE102015223516A1 (de) * 2015-09-23 2017-03-23 Sms Group Gmbh Walzgerüst, Walzlanlage und Verfahren zum aktiven Dämpfen von Schwingungen in einem Walzgerüst
DE102019202691A1 (de) * 2019-02-28 2020-09-03 Sms Group Gmbh Walzgerüst zum Walzen metallischen Guts
US20240083133A1 (en) * 2022-09-14 2024-03-14 Paper Converting Machine Company Coater and Embosser-Laminator Process Roll Calibration
CN115401227B (zh) * 2022-09-29 2024-10-01 湖北三江航天险峰电子信息有限公司 一种基于数控车床的双向在线检测装置及方法
CN115846416B (zh) * 2023-02-08 2023-05-09 厦门航天思尔特机器人系统股份公司 一种金属压轧机换辊调整装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054530A (en) * 1930-04-01 1936-09-15 Harrison R Williams Means for aligning calender rolls
US3358485A (en) * 1965-02-15 1967-12-19 United States Steel Corp Measuring and controlling gap between rolls
US3369383A (en) * 1965-07-16 1968-02-20 Gen Dynamics Corp Rolling mill system
DE2454896A1 (de) * 1974-11-20 1976-08-12 Betr Forsch Inst Angew Forsch Verfahren zum einstellen eines parallelen walzspaltes
FR2374101A1 (fr) * 1976-12-17 1978-07-13 Secim Cage pour train continu de laminage de profiles
JPS55165205A (en) * 1979-06-11 1980-12-23 Nippon Steel Corp Universal rolling mill
US4312209A (en) * 1980-05-19 1982-01-26 Sack Gmbh Method for operating a strip rolling mill
JPS5919014A (ja) * 1982-07-26 1984-01-31 Hitachi Ltd 圧延機のパスライン調整制御装置
DE3501622A1 (de) * 1985-01-19 1986-07-24 Mannesmann AG, 4000 Düsseldorf Verfahren zum automatischen einrichten der walzen eines universal-walzgeruestes
GB8613353D0 (en) * 1986-06-03 1986-07-09 Davy Mckee Sheffield Roll adjustment method
FR2645051A1 (fr) * 1989-03-28 1990-10-05 Clecim Sa Dispositif de reperage de la position des cylindres d'un laminoir
EP0399296B1 (fr) * 1989-05-24 1993-08-11 Sms Schloemann-Siemag Aktiengesellschaft Justification automatique d'un laminoir universel après le changement des cylindres pour les profils neufs

Also Published As

Publication number Publication date
KR920009466A (ko) 1992-06-25
DE4035276C1 (fr) 1992-05-07
DE59102171D1 (de) 1994-08-18
JP3169405B2 (ja) 2001-05-28
KR100222057B1 (ko) 1999-10-01
JPH04266412A (ja) 1992-09-22
EP0483939A1 (fr) 1992-05-06
US5279139A (en) 1994-01-18

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