EP1601477B1 - Dispositif et procede de calibrage d'une planeuse a rouleaux par barre instrumentee - Google Patents

Dispositif et procede de calibrage d'une planeuse a rouleaux par barre instrumentee Download PDF

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Publication number
EP1601477B1
EP1601477B1 EP04716623A EP04716623A EP1601477B1 EP 1601477 B1 EP1601477 B1 EP 1601477B1 EP 04716623 A EP04716623 A EP 04716623A EP 04716623 A EP04716623 A EP 04716623A EP 1601477 B1 EP1601477 B1 EP 1601477B1
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EP
European Patent Office
Prior art keywords
leveller
rolls
bar
plate
extensometers
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
EP04716623A
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German (de)
English (en)
French (fr)
Other versions
EP1601477A1 (fr
Inventor
Olivier Madelaine-Dupuich
Stéphane ROSSI
Gilbert Petig
Philippe Wallendorf
Dominique Kircher
Fabrice Tondo
Eric Vasseur
Alain Fouratier
Jacques-Yves Bourgon
Christian Hoff
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.)
ArcelorMittal France SA
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Arcelor France SA
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 Arcelor France SA filed Critical Arcelor France SA
Priority to PL04716623T priority Critical patent/PL1601477T3/pl
Priority to SI200430700T priority patent/SI1601477T1/sl
Publication of EP1601477A1 publication Critical patent/EP1601477A1/fr
Application granted granted Critical
Publication of EP1601477B1 publication Critical patent/EP1601477B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F

Definitions

  • the present invention which is part of the field of metallurgy, and more particularly of the manufacture of sheets, in particular of steel, relates to the calibration of a roller leveling machine, with the exception of so-called multi-roll planers under traction. .
  • the planers are designed to correct or significantly reduce defects, from various stages of manufacture (rolling, winding, heat treatments), metal sheets. For example, developable defects (initial hanger, "tile") or non-developable defects ("long edge” or "long center” defects).
  • developable defects initial hanger, "tile”
  • non-developable defects long edge or "long center” defects
  • the sheet or the glide strip thus passes within a cage consisting of an assembly comprising at least two sets of lower and upper rollers arranged one facing each other.
  • the two series are arranged substantially parallel to each other, and perpendicular to the running direction of the strip.
  • the sheet undergoes a partial plastic deformation in bending in one direction, then in the opposite direction.
  • the amplitude of the bending decreases progressively, because the nesting of the rolls decreases towards the exit of the planer. In this way, it is possible to produce products having excellent flatness and a very low level of residual stresses, suitable for satisfying certain applications in the field of metal furniture, household appliances, the automotive industry.
  • a schematic longitudinal section of a conventional planer is shown: a series of lower rollers 11 (marked from “11a” to “11 n") is divided into ten in this particular case) and a series of upper rollers 12 marked “12a” to “12m”, respectively carried by a lower bed base 13 and an upper bed base 14.
  • the metal strip 10 is driven in the direction of arrow F in the planer.
  • the rollers 11 and 12 are nested one inside the other in a decreasing manner in the running direction of the web: thus the web is deformed by a significant amount by bending between the input rollers 11a, 12a, 11b, but very little in the output rollers 11m, 12m, 11n from the exit area of the planer.
  • the initial geometrical defects of the strip are transformed by plastification into a system of residual stresses whose amplitude decreases with that of the flexion imposed by the rollers.
  • the figure 2 schematically shows known means for adjusting the nesting of the rollers: the "tilting" characterizes the inclination of the upper beam 14 with respect to the lower beam 13 in the running direction of the strip.
  • the lower bed is considered as a reference plane.
  • the bed base 14 is supported on an upper frame 15 by adjustment assemblies 16a, 16b, 16c and 16d, for example of the screw-nut type with angle gear or other technologies.
  • the adjustment assemblies according to the aforementioned example of screw-nut type are actuated by the motors 19a and 19b by means of the drive shafts 17a and 17b.
  • the couplings 18a and 18b temporarily disconnect the sets of settings they connect, so as to adjust the transverse parallelism (or "skew") between the lower and upper rollers, input and output planer.
  • the adjustment of the roll nests is then carried out by means of the motors which simultaneously drive the adjustment sets at the input or at the output of leveler.
  • the swaying must be eliminated by important interventions on the machine. Tipping is currently set to change the nesting of the rolls, particularly depending on the characteristics of the planar bands.
  • the figure 3 schematically shows a conventional planer in front view, which illustrates the means available to compensate for flexing rollers under load. Indeed, the reaction forces during the planing of the strip result in deformations of the rollers.
  • the leveling rollers are supported by stages of rollers, ramps or rollers of support and against support. This set is mounted in a frame called “cassette” placed on a set of "independent counter-support ramps” and adjustable in height, distributed in the transverse direction of the planer.
  • the figure 3 illustrates an example of eleven rows of counter-supports 21 for compensating the bending of the rollers 11. The lateral movement of the rollers is limited by the bearings 20. The vertical position of these ramps can be adjusted for example by means of adjustable slack wedges 22 .
  • the figure 4 presents, intentionally exaggerated, the deformations created by these ramps of counter-supports on the lower rollers by means of a greater or lesser vertical displacement of the ramps.
  • the deformations can be performed on the vacuum rollers and loaded.
  • the figure 5 shows a known example where the height of these counter-supports is adjustable by means of wedges 23 interposed between the support rollers 11 and a rigid lower frame 15 '.
  • the relative displacement of the slack wedges is ensured by a jack 24, and can be measured for example by a position sensor 25.
  • the present invention aims to meet these needs. It thus aims in particular to determine with precision and simplicity the characteristics of a planer by performing a load calibration, reproducible and under known efforts. It also aims to determine the position of the counter-support settings, so as to correct the bending of the glider rolls. It also aims to correct the "swaying" of the planeuse, as well as control its “tilting" to parallel bed bases. It also aims to ensure that the initial settings have not changed over time.
  • the subject of the invention is a device for calibrating a roller leveling machine for gliding a metal strip, comprising at least one assembly consisting of two series of lower and upper rollers, arranged one facing each other.
  • the other so as to nest the rollers of one series in those of the other, these series of rollers being arranged substantially parallel to each other and perpendicular to the running direction of the band to be glide, device characterized in that it further comprises a rigid measuring bar, of sufficient length to be positioned in the plane direction between said set of upper and lower rollers, extending over all the rollers, rigid pads integral with the reproducing bar, when they come to be placed in line with the lower rollers, the action of the said lower rollers and their mechanical characteristics, and a thin blade. étalique resting on these pads being fixed on one of them to the middle of the bar and having extensometers to measure its elastic deformations.
  • the length of the instrumented thin strip is greater than the distance separating the first and the last roller from the planer, its width preferably being smaller than that of a ramp or a counter-roller.
  • the geometric and mechanical characteristics of said thin blade are chosen in such a way that, when this thin blade is subjected to a force corresponding to the planing of strips of thickness, of limit and module of the lowest elasticity treated on the leveler, these lead to a deformation in the elastic domain of the material of the blade.
  • the extensometers may be strain variation strain gauges or optical fiber extensometers measuring the variation in length of a Fabry-Perot cavity, or any other means for measuring the local arrow of said thin blade.
  • the bar comprises a centering pin interposed between two lower rollers for accurately and reproducibly positioning said bar in the longitudinal direction of said planer.
  • At least two extensometers are positioned in the center and on the lower part of the blade so that the instrumented bar once in place in the planeuse, the extensometers are located at the fourth roll from the input of the leveler and the N-3 th output roller of the planer, said planer comprising a total of N rolls.
  • the bar advantageously comprises an extension for its easy handling within the planer.
  • the subject of the invention is also a method of calibrating a roller planer using the instrumented bar device defined above, characterized in that two such measuring rods comprising an instrumented thin blade are placed near the bearings in the planeuse, the ramps against against supports being completely lowered, the series of lower and upper rollers are brought closer to one another by action on the clamping control means so as to exert a force on said bars measurement, this reference force corresponding to the planar strips of thickness, limit and modulus of elasticity lowest likely to be processed on the leveler, said blade being in a state of elastic deformation.
  • the strain gauges are measured by means of said extensometers to deduce a reference air gap, the swaying and tilting of said planer, and if necessary, make corrections based on these results.
  • the calibration step defined above is carried out, then, in a subsequent step, the two measurement bars comprising an instrumented blade are placed in alignment with the counter-support ramps. closer to the bearings and the two series of lower and upper rollers are brought closer to one another by action on the clamping control means to set them to the reference air gap measured in the previous step, then acts on the displacement of the two aforementioned counter-support ramps to obtain a force identical to the reference force, measured from the deformations of the instrumented thin plate, and by lateral displacement of the bars in line with the other ramps of against-support, we repeat this operation as many times as necessary until calibration of all the counter-supports.
  • measurement bars comprising a thin plate instrumented and defined above, that of counter-support ramps, is positioned near the bearings in the planer two so-called measuring bars the two series of rollers are brought closer to one another by action on the clamping control means so as to exert a reference force on the measuring bars, said force corresponding to the planing of strips of thickness, limit and modulus of elasticity treated the lowest on said planer, and, the blade being in a state of elastic deformation, one measures by means of extensometers the deformations undergone by the blades to deduce the reference gap and correct the where appropriate the swaying and tilting of said planer, then all the measuring bars are placed in the planer, positioned respectively at the right of each ramp of counter-support, we compare the two series of rollers from one another by action on the clamping control means to obtain the reference air gap, it acts on the displacement of the counter-supports to obtain the reference force, and is measured by means of extensometers the deformations experienced
  • the calibration methods described above are implemented by means of bars comprising a centering pin which is inserted between two of the lower rollers in order to precisely and reproducibly position each bar in the longitudinal direction of the planer, so that the rigid pads reproducing the action of the lower rollers are arranged in line with these rollers.
  • this metal blade The characteristics of this metal blade are chosen according to the following points: It has been seen that the stresses of this blade are those defined by the leveling conditions of the range of products that require the least effort. By definition, these conditions lead to plastically deforming the planar products. The characteristics of the blade must instead be chosen so that these same conditions result in its deformation only in the elastic domain. This means that at least one of the following characteristics of the blade: yield strength, thickness, modulus of elasticity, must be greater than those of planar products.
  • marks 1 and 9 of the figure 8 correspond to the plumb of the first and last ramps of counter-support of this planeuse, the mark 5 indicates the longitudinal axis of the planeuse.
  • the figure 8 illustrates the transverse variation of the clamping measured at the input (E) and at the output (S) of this planer by means of bars with an instrumented blade, the bending ramps being completely lowered.
  • This first step makes it possible to identify a bending of the rollers under load, as well as a kinking of the cassette of the planer.
  • the figure 9 illustrates the clamping measured on the same leveler, after correction performed on the counter-supports taking into account the indications of the preceding characterization step: the bending of the rollers, the air gap of the machine under load, have been homogenized. Clamping on the instrumented bars after this calibration operation is 0.5mm +/- 0.1mm.
  • the invention is not limited to the examples described above, but extends to multiple variants of equivalents to the extent that is reproduced its definition given in the following claims.
  • the described invention makes it possible to identify and quickly correct possible adjustment defects of the roller planing machines. Easy to use for the operator, it makes it possible to diagnose possible drifts and to significantly increase the quality of planed products, through better flatness and increased regularity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Metal Rolling (AREA)
EP04716623A 2003-03-07 2004-03-03 Dispositif et procede de calibrage d'une planeuse a rouleaux par barre instrumentee Expired - Lifetime EP1601477B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL04716623T PL1601477T3 (pl) 2003-03-07 2004-03-03 Urządzenie i sposób kalibrowania prostownicy rolkowej za pomocą pręta oprzyrządowanego
SI200430700T SI1601477T1 (sl) 2003-03-07 2004-03-03 Priprava in postopek za kalibriranje stroja za ravnalno valjanje z instrumentirano palico

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0302845A FR2851943B1 (fr) 2003-03-07 2003-03-07 Dispositif et procede de calibrage d'une planeuse a rouleaux par barre instrumentee
FR0302845 2003-03-07
PCT/FR2004/000497 WO2004080626A1 (fr) 2003-03-07 2004-03-03 Dispositif et procede de calibrage d’une planeuse a rouleaux par barre instrumentee

Publications (2)

Publication Number Publication Date
EP1601477A1 EP1601477A1 (fr) 2005-12-07
EP1601477B1 true EP1601477B1 (fr) 2008-04-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04716623A Expired - Lifetime EP1601477B1 (fr) 2003-03-07 2004-03-03 Dispositif et procede de calibrage d'une planeuse a rouleaux par barre instrumentee

Country Status (16)

Country Link
US (1) US7584638B2 (ru)
EP (1) EP1601477B1 (ru)
JP (1) JP4512585B2 (ru)
KR (1) KR101141265B1 (ru)
CN (1) CN100377802C (ru)
AT (1) ATE390964T1 (ru)
BR (1) BRPI0408672B1 (ru)
CA (1) CA2517803C (ru)
DE (1) DE602004012843T2 (ru)
ES (1) ES2301976T3 (ru)
FR (1) FR2851943B1 (ru)
PL (1) PL1601477T3 (ru)
PT (1) PT1601477E (ru)
RU (1) RU2336134C2 (ru)
SI (1) SI1601477T1 (ru)
WO (1) WO2004080626A1 (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102335684A (zh) * 2010-07-19 2012-02-01 巨力索具股份有限公司 一种镦粗钢拉杆矫直机

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006027066A1 (de) * 2006-06-10 2007-12-13 Sms Demag Ag Vorrichtung und Verfahren zum Führen eines Bandes
TWI464021B (zh) * 2012-11-19 2014-12-11 China Steel Corp Clamping force measuring device
DE102014205900A1 (de) * 2014-03-28 2015-10-01 Sms Group Gmbh Verfahren zum Anstellen einer Richtwalze einer Richtwalzanlage
DE102016000751B4 (de) * 2016-01-25 2019-01-17 Isabellenhütte Heusler Gmbh & Co. Kg Herstellungsverfahren für einen Widerstand und entsprechende Herstellungsanlage
CN108655208B (zh) * 2018-05-29 2019-11-19 攀钢集团攀枝花钢钒有限公司 矫直机矫直状态测控方法和矫直机矫直状态测控系统
CN109991163B (zh) * 2019-04-22 2021-12-21 湖南继兴科技有限公司 一种胶黏剂的检测设备
CN113458264A (zh) * 2021-07-22 2021-10-01 广西天正钢结构有限公司 一种钢板校平处理工艺
CN113714326B (zh) * 2021-08-28 2023-03-28 江苏磊澄智能机械装备有限公司 一种具有校准结构的自动钢板加工用校平机
CN117940736A (zh) 2021-09-17 2024-04-26 安赛乐米塔尔公司 矫平机校准装置
CN114653784A (zh) * 2022-04-13 2022-06-24 武汉科技大学 一种矫直机辊系在线故障诊断系统及方法

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GB1138613A (en) * 1965-03-11 1969-01-01 Derek Joseph Harry Goddin Improvements in or relating to pressure measuring devices
AT375773B (de) * 1980-01-25 1984-09-10 Voest Alpine Ag Messeinrichtung an einer von drehgelagerten rollen gebildeten rollenbahn
JPS62187520A (ja) * 1986-02-12 1987-08-15 Ishikawajima Harima Heavy Ind Co Ltd ロ−ラ矯正機の零調方法
FR2611542B1 (fr) * 1987-02-25 1989-05-26 Siderurgie Fse Inst Rech Procede et dispositif pour la mesure de l'effort de serrage entre les cylindres d'une cage de laminage
US4901585A (en) * 1988-11-30 1990-02-20 Westvaco Corporation Method and apparatus for roll nip load measurement
US5189896A (en) 1992-03-02 1993-03-02 Mesta International Single stand roller leveller for heavy plate
FR2718661B1 (fr) 1994-04-15 1996-07-12 Clecim Sa Installation de planage d'une bande métallique.
FR2732912A1 (fr) * 1995-04-14 1996-10-18 Clecim Sa Planeuse a rouleaux imbriques
DE19705457B4 (de) * 1997-02-13 2006-01-12 Sms Demag Ag Blechrichtmaschine
CN2428236Y (zh) * 1999-12-30 2001-05-02 湖北重型机器集团有限公司 辊式矫正机活动横梁的摆动导向和平衡装置
FR2816856B1 (fr) * 2000-11-17 2003-01-31 Usinor Dispositif et procede de calibrage d'une planeuse multi-rouleaux

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102335684A (zh) * 2010-07-19 2012-02-01 巨力索具股份有限公司 一种镦粗钢拉杆矫直机

Also Published As

Publication number Publication date
JP4512585B2 (ja) 2010-07-28
WO2004080626A1 (fr) 2004-09-23
KR20050106090A (ko) 2005-11-08
ATE390964T1 (de) 2008-04-15
CA2517803A1 (fr) 2004-09-23
US7584638B2 (en) 2009-09-08
PT1601477E (pt) 2008-05-16
RU2005130935A (ru) 2006-06-10
BRPI0408672A (pt) 2006-03-28
CN1771099A (zh) 2006-05-10
PL1601477T3 (pl) 2008-09-30
ES2301976T3 (es) 2008-07-01
CN100377802C (zh) 2008-04-02
RU2336134C2 (ru) 2008-10-20
DE602004012843T2 (de) 2009-05-14
JP2006519703A (ja) 2006-08-31
EP1601477A1 (fr) 2005-12-07
CA2517803C (fr) 2011-08-16
US20070033976A1 (en) 2007-02-15
FR2851943B1 (fr) 2005-04-08
SI1601477T1 (sl) 2008-08-31
BRPI0408672B1 (pt) 2015-08-18
FR2851943A1 (fr) 2004-09-10
KR101141265B1 (ko) 2012-05-24
DE602004012843D1 (de) 2008-05-15

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