EP3661669B1 - Multiwalzen-richtmaschine für metallband - Google Patents

Multiwalzen-richtmaschine für metallband Download PDF

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Publication number
EP3661669B1
EP3661669B1 EP18738359.1A EP18738359A EP3661669B1 EP 3661669 B1 EP3661669 B1 EP 3661669B1 EP 18738359 A EP18738359 A EP 18738359A EP 3661669 B1 EP3661669 B1 EP 3661669B1
Authority
EP
European Patent Office
Prior art keywords
rolls
profile
leveling
leveler
strip
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.)
Active
Application number
EP18738359.1A
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English (en)
French (fr)
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EP3661669A1 (de
EP3661669B8 (de
Inventor
Sébastien MAILLARD
Dominique Tellier
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.)
Clecim SAS
Original Assignee
Primetals Technologies France SAS
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Publication date
Application filed by Primetals Technologies France SAS filed Critical Primetals Technologies France SAS
Priority to PL18738359T priority Critical patent/PL3661669T3/pl
Priority to RS20211292A priority patent/RS62458B1/sr
Publication of EP3661669A1 publication Critical patent/EP3661669A1/de
Publication of EP3661669B1 publication Critical patent/EP3661669B1/de
Application granted granted Critical
Publication of EP3661669B8 publication Critical patent/EP3661669B8/de
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Classifications

    • 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
    • B21D1/05—Stretching combined with rolling
    • 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

Definitions

  • the present invention relates to a metal strip leveler according to claim 1.
  • a metal strip leveler according to claim 1.
  • a heat treatment system imposing a phase transformation under difficult control conditions (for example during rapid cooling) and inducing internal deformations, heterogeneities and stresses within the metal product.
  • a problem of final shaping of the metal product such as by stamping or forming is thus made more difficult by high elastic limit properties (elastic return), and requires an incoming product having a homogeneous material and perfectly freed from internal stresses.
  • a metal strip leveler has a property of correcting flatness defects, for example by means of two upper and lower rows of upper and lower leveling rollers, respectively, the upper and lower rollers being with parallel axes, offset. longitudinally in a tape pass line direction and also offset in height, so as to determine, by nesting the rollers, a corrugated path of the tape between said rollers.
  • this type of leveler makes it possible to impose an elongation of the strip strands in order to make it more flat.
  • At the exit of such a leveler it is possible to have an anti-tile crew in order to correct a residual deformation linked to the strip tiling effect.
  • said leveler can include at its output a second module called multi-roller type, the main property of which is to reduce residual stresses on the metal strip.
  • a second profile of linear nesting values of the rollers comprising two successive discontinuous linear profiles of linear nesting values (Penetration settings of rollers (mm), fig. 23) according to the direction of the pass line.
  • This improved profile is achieved by arranging two successive sets of upper and lower leveling cassettes each being individually tiltable in a plane vertical to the web pass line. It is specified that such profiles of nesting values make it possible to compensate for residual stresses of the linear type of the material, but that non-linear stresses seem to persist.
  • EP2813299A1 uses the same principle of a leveler under traction and thus has the same drawbacks, as well as those described below.
  • the metal strip mainly exhibits mechanical stresses exhibiting a strong asymmetry in intensity. depending on the thickness of the product and with respect to at least one neutral fiber of the strip.
  • these residual stresses hereinafter referred to as asymmetric, persist to the detriment of the required quality of the planed product.
  • Figure 1 presents a typical example of an asymmetric profile of residual stresses (c) according to the thickness (e) of strip (B) such as after a leveling step according to the state of the art.
  • the stress value is zero at the level of at least one neutral fiber (fn), said neutral fiber here being spaced from a so-called “strip center” (cb) fiber located in the middle of the strip thickness.
  • strip center cb
  • Figure 2 has an optimized profile of residual stresses targeted by the invention, in that the asymmetry of the profile according to figure 1 tends to be corrected by a rebalancing of positive and negative asymmetric constraints. Such a rebalancing must result in a profile of stresses symmetrical compared to the center of band and of which the distribution of the stresses (c) positive and negative is also the most balanced possible.
  • An aim of the present invention is to provide a metal strip leveler capable of at least compensating for an imbalance, in particular asymmetric, in the distribution of residual stresses in the thickness of the planed strip, in particular for steels with a high elastic limit.
  • a metal strip leveler is thus provided through the features of claim 1.
  • a major advantage of the nesting profile with at least three non-linear type deviations makes it possible to distribute the residual stresses better in the thickness of the planed strip, on the model of the figure 2 , unlike known linear type profiles which mainly have only a leveling effect absorbing symmetrical type stresses on the thickness of the strip to be leveled and therefore cannot rebalance an asymmetric stress.
  • Figure 3 presents a first embodiment of the leveler of a metal strip (B) according to the invention and in a side view (operator for example).
  • the strip has a thickness subjected to a stress profile as described above in relation to the figure 1 .
  • the strip also has some flatness defects.
  • Figure 4 present according to figure 3 said deviations having a profile (in continuous line) of non-linear nesting values (Imbr) of either convex or concave type with respect to a profile (in dotted lines) of linear nesting values (Imbr_lin) following the direction of pass line (rolls 1 to 16 in this case).
  • the two upper rollers and the two lower rollers are arranged (1, 2, 3, 4) in a first leveling assembly (pl1) comprising for each of the rollers a individual vertical adjustment (v1, v2, v3, v4) in relation to a frame, a beam, a cassette or any other holding element included in the leveler for this purpose.
  • the adjustment of at least one of the rollers includes at least one cylinder.
  • the first rollers of the leveler included in the first leveling assembly (p1) make it possible in principle to ensure the major part of the elongation of the strip in order to correct flatness defects and stresses.
  • the leveler may additionally comprise at least a second leveling assembly (pl2) respectively formed by an upper cassette (C1) and a lower cassette (C2) of a multi-roller type leveler (5, 6, 7, 8, ... ).
  • This configuration is particularly suitable for leveling so-called “tinplate” steels, for example suitable for the manufacture of metal packaging.
  • At least one of the cassettes (C1, C2) of the second leveling assembly (pl2) is tilted by vertical displacement means (v2hg, v2hd, v2bg, v2bd), so that the cassettes are arranged at an open angle in a vertical plane in the direction of the pass.
  • vertical displacement means v2hg, v2hd, v2bg, v2bd
  • Figures 5 to 7 finally present a second and a third embodiments of the leveler according to the invention.
  • the second embodiment of the leveler according to the invention provides that the leveler is only composed of the second leveling assembly of the multi-roller type (first leveling assembly absent or inactive).
  • This type of multi-roll leveler generally comprises a high number of rollers (15 or more), and has the advantage of being able to absorb large flatness and stress defects.
  • the profile of non-linear nesting values is applied to at least four rollers of the second leveling assembly (p12), for example, by means of the two upper rollers (5, 7) and the two lower rollers ( 6, 8) which are arranged in (at least) the second leveling assembly (pl2) respectively formed by an upper cassette (C1) and a lower cassette (C2) of a multi-roll type leveler, with at least one of said cassettes including for each of the rollers an individual vertical adjustment (r5, r7; r6, r8, ...) of the rollers in relation to the cassettes, ideally the adjustment comprising at least one actuator of mechanical or servomotor type.
  • Figure 6 presents an example of a profile of non-linear values of nesting (Imbr) of convex shape here and applied to the rollers (5, 6, 7, 8, etc.) of the only second leveling set (pl2) presented in figure 5 for this second embodiment, the first leveling assembly being not present or inactive.
  • the third embodiment of the leveler according to the invention finally provides that the leveler is again composed of the first and of the second leveling assemblies (pl1, pl2).
  • the leveler is again composed of the first and of the second leveling assemblies (pl1, pl2).
  • at least the two upper rollers and two lower rollers linked to the profile of non-linear nesting values are distributed or distributed in the first set and in the second set.
  • rollers of the second leveling assembly made it possible in the state of the art to limit the residual stresses generated by a linear and decreasing leveling nesting in order to compensate for the stresses induced in the product
  • the application of profiles of non-linear values of nesting (convex and / or concave) according to figure 5 around said linear profiles very advantageously lead to additional compensation for asymmetries of constraints in the thickness of the product.
  • the said first rolls (according to the direction of the web pass) of the second leveling assembly (pl2) are arranged under non-linear nesting values of concave or convex shape, the said non-nesting values.
  • linear values being greater than the linear nesting values (Imbr_lin).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Metal Rolling (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Claims (11)

  1. Richtmaschine für Metallband (B), wobei das Band eine Dicke (e) aufweist, die einem Spannungsprofil unterliegt, die Richtmaschine umfassend:
    - eine Reihe oberer Rollen (1, 3, 5, 7, 9...) und eine Reihe unterer Rollen (2, 4, 6, 8, 10...),
    - wobei die oberen und unteren Rollen parallele Achsen aufweisen, die in einer Durchlauflinienrichtung (lp) in Längsrichtung versetzt sind und in der Höhe versetzt sind, um durch vertikale Verzahnung der Rollen einen gewellten Weg des Bands zwischen den Rollen zu bestimmen, dadurch gekennzeichnet, dass mindestens zwei obere Rollen (1, 3, 5, 7) und zwei untere Rollen (2, 4, 6, 8) über und jeweils unter der Durchlauflinie angeordnet sind, so dass sie drei Abstände vertikaler Verzahnung bilden, wobei die Abstände ein Profil nichtlinearer Verzahnungswerte (Imbr) entweder konvexen oder konkaven Typs bezogen auf ein Profil linearer Verzahnungswerte (Imbr_lin) entlang der Durchlauflinienrichtung aufweisen.
  2. Richtmaschine nach Anspruch 1, wobei die zwei oberen Rollen (1, 3) und die zwei unteren Rollen (2, 4) in einer ersten Richtanordnung (pl1) angeordnet sind, die für jede der Rollen eine individuelle vertikale Einstellung (v1, v2, v3, v4) umfasst.
  3. Richtmaschine nach Anspruch 1 oder 2, wobei die zwei oberen Rollen (5, 7) und die zwei unteren Rollen (6, 8) in mindestens einer zweiten Richtanordnung (pl2) angeordnet sind, die jeweils von einer oberen Kassette (C1) und einer unteren Kassette (C2) der Richtmaschine vom Multirollentyp gebildet ist, wobei mindestens eine der Kassetten für jede der Rollen eine individuelle vertikale Einstellung (r5, r7, r6, r8) der Rollen bezogen auf die Kassetten umfasst, wobei die Einstellung idealerweise mindestens einen mechanischen Aktor oder Servomotor umfasst.
  4. Richtmaschine nach Anspruch 3, wobei wenigstens die zwei oberen Rollen und zwei untere Rollen in der ersten Anordnung und in der zweiten Anordnung verteilt sind.
  5. Richtmaschine nach Anspruch 3 oder 4, wobei die ersten Rollen der zweiten Richtanordnung (pl2) unter nichtlinearen Verzahnungswerten konkaver oder konvexer Form angeordnet sind, wobei die nichtlinearen Verzahnungswerte größer als die linearen Verzahnungswerte (Imbr_lin) sind.
  6. Richtmaschine nach einem der Ansprüche 3 bis 5, wobei die zweite Anordnung (pl2) mehrere Paare oberer und unterer Kassetten umfasst, die entlang der Durchlauflinie aufeinander folgen.
  7. Richtmaschine nach einem der Ansprüche 1 bis 6, wobei das Profil linearer Verzahnungswerte (Imbr_lin) entlang der Durchlauflinienrichtung von einem Einlass zu einem Auslass mindestens eines Bandrichtabschnitts entlang der Durchlauflinie abnehmend ist.
  8. Richtmaschine nach einem der Ansprüche 1 bis 7, wobei mindestens zwei Spannvorrichtungen stromauf beziehungsweise stromab mindestens einer Gruppe von oberen und unteren Rollen angeordnet sind, so dass das Band unter einer Zugspannung steht.
  9. Richtmaschine nach einem der Ansprüche 2 bis 8, wobei die zweite Richtanordnung (pl2) mindestens 2,2 mal so viele Richtrollen wie die erste Richtanordnung (pl1) umfasst, idealerweise 2,5 bis 6 mal so viele.
  10. Richtmaschine nach einem der Ansprüche 1 bis 9, die von einer Steuereinheit vom Typ Automat gesteuert wird oder/und geeignet ist, von einem Bediener gesteuert zu werden, wobei die Einheit einen Datenträger aufweist, der verschiedene Spannungsprofil-Modelle umfasst, je nach den mechanischen Eigenschaften diverser zu richtender Bandmaterialien, und geeignet ist, eins von zugehörigen Richtmodellen auszuwählen, die verschiedene Profile nichtlinearer Verzahnungswerte in Form von Steuersignalen aufweisen, die an Aktoren zur vertikalen Einstellung (v1, v2, v3, v4, r5, r6, r7 ,r8) der aufeinanderfolgenden Richtrollen übertragen werden.
  11. Richtmaschine nach einem der Ansprüche 1 bis 10, wobei auf der Bedienerseite mindestens drei vertikale Abstände zwischen ersten Paaren von aufeinanderfolgenden oberen und unteren Rollen ein erstes Profil nichtlinearer Verzahnungswerte aufweisen und auf der Motorseite mindestens drei vertikale Abstände zwischen zweiten Paaren von aufeinanderfolgenden oberen und unteren Rollen ein zweites Profil nichtlinearer Verzahnungswerte aufweisen, das vom ersten Profil abweicht, wobei die ersten und zweiten Rollenpaare entweder zu denselben Rollen gehören oder aus gesonderten Rollen gebildet sind.
EP18738359.1A 2017-08-04 2018-07-17 Multiwalzen-richtmaschine für metallband Active EP3661669B8 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL18738359T PL3661669T3 (pl) 2017-08-04 2018-07-17 Wielo-rolkowa prostownica taśmy metalowej
RS20211292A RS62458B1 (sr) 2017-08-04 2018-07-17 Uredjaj za nivelisanje metalnih traka sa više valjaka

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17290100.1A EP3437749A1 (de) 2017-08-04 2017-08-04 Multiwalzen-richtmaschine für metallband
PCT/EP2018/069394 WO2019025179A1 (fr) 2017-08-04 2018-07-17 Planeuse multi-rouleaux de bande métallique

Publications (3)

Publication Number Publication Date
EP3661669A1 EP3661669A1 (de) 2020-06-10
EP3661669B1 true EP3661669B1 (de) 2021-09-01
EP3661669B8 EP3661669B8 (de) 2021-10-06

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EP17290100.1A Withdrawn EP3437749A1 (de) 2017-08-04 2017-08-04 Multiwalzen-richtmaschine für metallband
EP18738359.1A Active EP3661669B8 (de) 2017-08-04 2018-07-17 Multiwalzen-richtmaschine für metallband

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EP17290100.1A Withdrawn EP3437749A1 (de) 2017-08-04 2017-08-04 Multiwalzen-richtmaschine für metallband

Country Status (11)

Country Link
US (1) US20200171559A1 (de)
EP (2) EP3437749A1 (de)
JP (1) JP7071011B2 (de)
KR (1) KR102606762B1 (de)
CN (1) CN110914005B (de)
BR (1) BR112020001276B1 (de)
ES (1) ES2899672T3 (de)
MX (1) MX2020001331A (de)
PL (1) PL3661669T3 (de)
RS (1) RS62458B1 (de)
WO (1) WO2019025179A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020117682A1 (de) * 2020-07-03 2022-01-05 Kohler Maschinenbau Gmbh Richtmaschine und Verfahren zum Richten eines Metallbandes oder eines flächigen Metallteils
CN111842547B (zh) * 2020-07-17 2022-03-22 太原科技大学 一种具有拉压不对称性金属板材矫直工艺新方法

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IT1120753B (it) * 1975-12-09 1986-03-26 Mesta Machine Co Metodo e apparecchiatura per operazioni di raddrizzatura
AT368044B (de) * 1981-03-26 1982-08-25 Voest Alpine Ag Verfahren und vorrichtung zum aufwickeln gerichte-ter blechbaender
JPS63144821A (ja) * 1986-12-05 1988-06-17 Sumitomo Metal Ind Ltd 強圧下矯正方法
FR2715592B1 (fr) 1994-02-01 1996-04-12 Clecim Sa Procédé et installation de planage d'une bande métallique mince.
JP3268149B2 (ja) * 1994-12-27 2002-03-25 三菱重工業株式会社 ローラレベラ
FR2816856B1 (fr) * 2000-11-17 2003-01-31 Usinor Dispositif et procede de calibrage d'une planeuse multi-rouleaux
JP2006122963A (ja) * 2004-10-29 2006-05-18 Sankyo Mfg Co Ltd 幅広材用材料矯正装置および幅広材矯正機構を備えたコイル材供給装置
DE102008024013B3 (de) * 2008-05-16 2009-08-20 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren und Vorrichtung zum Richten eines Metallbandes
DE102009041852A1 (de) * 2009-09-18 2011-04-07 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren und Vorrichtung zum kontinuierlichen Streckbiegerichten von Metallbändern
JP5448692B2 (ja) * 2009-10-05 2014-03-19 新日鉄住金エンジニアリング株式会社 テンションローラレベラ
CN103391823B (zh) * 2010-10-06 2016-11-16 布拉德伯里有限公司 用于增加辊轧成型和整平系统的效率的装置和方法
JP2013215754A (ja) * 2012-04-05 2013-10-24 Nippon Steel & Sumikin Engineering Co Ltd 矯正機
JP5856535B2 (ja) * 2012-04-26 2016-02-09 スチールプランテック株式会社 ローラレベラおよびそれを用いた板材の矯正方法
DE102013106243C5 (de) 2013-06-14 2018-10-04 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren und Vorrichtung zum Streckbiegerichten von Metallbändern
CN104668313B (zh) * 2015-01-30 2017-01-18 燕山大学 一种七辊厚板矫直机辊缝调整方法

Also Published As

Publication number Publication date
ES2899672T3 (es) 2022-03-14
BR112020001276B1 (pt) 2023-02-07
KR20200037223A (ko) 2020-04-08
MX2020001331A (es) 2020-03-20
KR102606762B1 (ko) 2023-11-24
JP7071011B2 (ja) 2022-05-18
US20200171559A1 (en) 2020-06-04
EP3661669A1 (de) 2020-06-10
EP3437749A1 (de) 2019-02-06
JP2020534157A (ja) 2020-11-26
CN110914005B (zh) 2022-03-11
WO2019025179A1 (fr) 2019-02-07
CN110914005A (zh) 2020-03-24
RS62458B1 (sr) 2021-11-30
BR112020001276A2 (pt) 2020-07-21
PL3661669T3 (pl) 2022-01-17
EP3661669B8 (de) 2021-10-06

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