EP1345712B1 - Procede de regulation en temps reel d'une planeuse - Google Patents

Procede de regulation en temps reel d'une planeuse Download PDF

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Publication number
EP1345712B1
EP1345712B1 EP01272062A EP01272062A EP1345712B1 EP 1345712 B1 EP1345712 B1 EP 1345712B1 EP 01272062 A EP01272062 A EP 01272062A EP 01272062 A EP01272062 A EP 01272062A EP 1345712 B1 EP1345712 B1 EP 1345712B1
Authority
EP
European Patent Office
Prior art keywords
plate
planished
planishing
planisher
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.)
Expired - Lifetime
Application number
EP01272062A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1345712A1 (fr
Inventor
Jacques-Yves Bourgon
Olivier Guillard
Fabrice Tondo
Olivier Madelaine-Dupuich
Pierre Lemoine
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.)
USINOR SA
Original Assignee
USINOR 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 USINOR SA filed Critical USINOR SA
Publication of EP1345712A1 publication Critical patent/EP1345712A1/fr
Application granted granted Critical
Publication of EP1345712B1 publication Critical patent/EP1345712B1/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
    • 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 method for regulating time real a leveler intended to plan metal strips in reel or in coil, such as steel strips or directly plates or sheets, according to the preamble of claim 1, as well as an installation leveling according to the preamble of claim 4.
  • the invention applies on the one hand to the leveling of metal strips intended to be cut out of the leveler, so as to obtain plates or sheets of a determined length L, and on the other hand at planing plates or sheets.
  • a metal strip or a plate undergoes various operations, such as that hot rolling and cold rolling, intended to give it uniform dimensional characteristics over its entire length; so a laminated metal strip theoretically has a thickness at all points and a constant width.
  • the rolling operation is not sufficient to obtain a strip free from defects. Indeed, it may have flatness defects such as ripples at the edges or in the center, and a hanger (this is say a curvature) depending on the length or width of the strip.
  • a leveler consists of two cassettes superimposed each supporting several motorized rollers, offset relative to each other, and arranged alternately above and in below the course of the strip.
  • a tape reel metallic In the case of a tape reel metallic, it is unwound beforehand, generally straightened in a straightener before undergoing the leveling operation.
  • planed strips In order to deliver products that meet the flatness criteria required by manufacturers, planed strips are not rewound, in fact the winding destroys the flatness. They are therefore cut, at the exit of the leveler, so as to obtain plates, sheets or blanks, either by shears guillotine, either by means of a follower, rotary or flying shear. The plates or planed sheets then transported to a stacker, and are stacked pending delivery.
  • the leveling proper is carried out by passing the strip or the plate between the offset rollers of the leveler, whose tightening is adjusted by entry, i.e. the spacing of the rollers upstream of the leveler, and outlet, i.e. the spacing of the rollers downstream of the leveler.
  • entry i.e. the spacing of the rollers upstream of the leveler
  • outlet i.e. the spacing of the rollers downstream of the leveler.
  • the adjustment of the tightening parameters at the input and output of the leveler is carried out each time the reel, plate (or sheet), in order to adapt these parameters not only to the characteristics dimensional and types of tape or plate defects, but also depending on the hanger, depending on the shape you want to print on the plate (or sheet) after planing.
  • the plates will be delivered with a null hanger (plate perfectly flat), a positive hanger or a negative hanger.
  • a known means for adjusting the rollers of the leveler at the outlet consists in checking the residual hanger of the plate (or sheet) after planing.
  • the plate is raised by means of a lifter so that that the plate is suspended by one or two support points, then an operator measure the hanger of the plate by raising the arrow in the center of the plate to using a ruler. The operator can then adjust the tightening setting of the output rollers to correct the plate hanger and adapt it to demand from the industrialist. This measurement operation is repeated as many times as necessary for each change of product (in the form of a reel, plate or sheet).
  • the control of the residual hanger of the plate is an operation important insofar as the tolerances required by manufacturers, concerning the dimensions and the hanger of the plate, are more and more narrow.
  • the tolerances concerning the hanger of plates intended for LASER cutting, and for certain applications automotive, such as connecting parts are often less than ⁇ 3 mm / m.
  • the object of the present invention is to remedy the drawbacks of the method used in the prior art.
  • the invention also relates to a leveling installation of the type comprising a leveler for leveling metal strips, plates or sheets comprising, means for cutting, after planing, the strip in planed sheets or in planed sheets, characterized in that it comprises means for measuring the residual bend of the planed plates or planed sheets resulting either from the planing of the cut strip, or from the planing of the plate or of the sheet, at the outlet of the leveler, and means for modifying the tightening rollers located at the outlet of said leveler according to the indications supplied by the measuring means of said residual hanger.
  • the invention consists in performing a measurement in real time from the hanger of the plate or from the strip cut into a plate at its exit from the leveler, and to control the clamping of the rollers according to the results of this measurement.
  • FIG 1 there is shown schematically a leveler 1, of two 2,3 superimposed cassettes supporting 4 motorized rollers, positioned offset from each other, and between which a metal strip 5, a plate or sheet.
  • the installation includes cutting means 6 arranged at the leveler exit, a transport table 7, a means of conveying the strip cut into plates (not shown on the face).
  • the installation includes cutting means 6 arranged at the leveler exit
  • the cutting means 6 are superfluous when one directly planes plates or sheets; however, they may be present in the installation and in this case they are not operated.
  • the metal strip or plate 5 is planed in the leveler 1 by scrolling between the rollers 4.
  • the strip 5 is sheared by the cutting means 6 consisting either of a guillotine shears, or of a rotary, follower, or flying shear, so as to obtain plates 8, sheets or blanks of a length L determined in advance.
  • the cutting means 6 consisting either of a guillotine shears, or of a rotary, follower, or flying shear, so as to obtain plates 8, sheets or blanks of a length L determined in advance.
  • a part of the planed plate 8 rests on the transport table 7, while a length of plate L'determined in advance by a detection cell 10 exceeds the table 7 and is therefore outside the support zone.
  • the measurements made by the sensors 9 are preferably non-contact distance measurements to avoid distorting the measurement of the curvature of the plate part 8 of length L ′.
  • non-contact distance sensors 9 such as current sensors Eddy or optical sensors ...
  • the transfer function is calculated which then makes it possible to adjust the clamping at the outlet (rollers 4a and 4b) of the leveler 1, so as to adapt the hanger of the following plate 8 to the request of the manufacturer.
  • the hanger of plate 8 required by the manufacturer may be zero (plate perfectly flat), positive (curvature of the plate up) or negative (curvature of the plate down). To obtain plates with one of these profiles, either loosen or tighten the spacing of the rollers 4a with respect to rollers 4b located at the leveler exit 1.
  • This operation can be carried out by an operator who collects the different measures mentioned above, calculates using these measures the transfer function allowing to deduce the tightening parameters in exit of the rollers 4a and 4b to be injected into the regulation system 11 according to the hanger you want to apply to the plate.
  • the actuator 12 acts directly on the clamping of the rollers 4a and 4b at the outlet leveler 1, ie on their relative spacing.
  • the method according to the invention thus makes it possible to control in real time the hanger of each of the plates 8.
  • real-time control of the hanger of the plate 8 makes it possible to act immediately on the tightening parameters in leveler output 1 and modify, if necessary, the tightening settings at the outlet (rollers 4a and 4b), so as to obtain plates 8, the hanger is constant, or whose value of the hanger remains within the limit of tolerance set by the manufacturer.
  • Figure 2 shows the variation in the value of the residual hanger (expressed in mm / m) as a function of the tightness of the rollers at the exit from the leveler (expressed in mm).
  • the material considered is a steel strip 6 mm thick, 1500 mm wide and elastic limit of 350 Mpa.
  • the initial plasticization rate of the band is 60%.
  • the maximum plasticization rate targeted for this example is 80%. This imposed plasticization rate depends on the strategy leveling used and the initial flatness of the strip before leveling. The amplitude of the hanger variations after leveling is directly correlated to this parameter.
  • Example 1 the contactless distance sensors measure a hanger residual of the plate obtained after planing and shearing of the steel strip of + 7mm / m. So that the hanger of this plate is zero (plate perfectly plane), the regulation system (a) must correct the tightening of the rollers at the exit from the leveler by a correction of 0.15 mm so that the tightening reaches 0.32 mm.
  • Example 2 the contactless distance sensors measure a hanger residual of the plate obtained after planing and shearing of the steel strip of -7mm / m. So that the hanger of this plate is zero (plate perfectly plane), the regulation system (a ') must correct the tightening of the rollers at the exit from the leveler by a correction of 0.2 mm so that the tightening reaches 0.32 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Soil Working Implements (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Coloring (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Paper (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Fuel Cell (AREA)
  • Road Paving Structures (AREA)
  • Control Of Metal Rolling (AREA)
  • Processing Of Meat And Fish (AREA)
  • Crushing And Grinding (AREA)
EP01272062A 2000-12-27 2001-12-14 Procede de regulation en temps reel d'une planeuse Expired - Lifetime EP1345712B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0017085A FR2818563B1 (fr) 2000-12-27 2000-12-27 Procede de regulation en temps reel d'une planeuse
FR0017085 2000-12-27
PCT/FR2001/003992 WO2002051563A1 (fr) 2000-12-27 2001-12-14 Procede de regulation en temps reel d'une planeuse

Publications (2)

Publication Number Publication Date
EP1345712A1 EP1345712A1 (fr) 2003-09-24
EP1345712B1 true EP1345712B1 (fr) 2004-09-01

Family

ID=8858247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01272062A Expired - Lifetime EP1345712B1 (fr) 2000-12-27 2001-12-14 Procede de regulation en temps reel d'une planeuse

Country Status (14)

Country Link
US (1) US7032420B2 (cs)
EP (1) EP1345712B1 (cs)
AT (1) ATE275007T1 (cs)
CA (1) CA2432648C (cs)
CZ (1) CZ305184B6 (cs)
DE (1) DE60105312T2 (cs)
ES (1) ES2230238T3 (cs)
FR (1) FR2818563B1 (cs)
ME (1) ME00794B (cs)
PL (1) PL201321B1 (cs)
PT (1) PT1345712E (cs)
RS (1) RS50159B (cs)
TR (1) TR200402368T4 (cs)
WO (1) WO2002051563A1 (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104550326A (zh) * 2013-10-18 2015-04-29 沈阳东宝海星金属材料科技有限公司 一种周期性纵向变厚度板材矫直装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0302082L (sv) * 2003-07-10 2004-12-21 Ortic Ab maskin för krökning av långa produkter och sätt att styra en sådan maskin
DE102009024701B4 (de) 2009-06-12 2016-05-04 Mahle International Gmbh Ölnebelabscheider
US9021844B2 (en) * 2013-03-15 2015-05-05 The Bradbury Company, Inc. Methods and apparatus to monitor material conditioning machines
DE102015218599A1 (de) 2015-09-28 2017-03-30 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Richten eines Verzugs eines Bauteils durch eine Richtvorrichtung sowie Richtvorrichtung
EP3437749A1 (fr) * 2017-08-04 2019-02-06 Primetals Technologies France SAS Planeuse multi-rouleaux de bande métallique
PL233869B1 (pl) * 2018-01-26 2019-12-31 Ekoinstal Holding Spólka Z Ograniczona Odpowiedzialnoscia Spólka Komandytowa Sposób prostowania naciągowego blachy
CN108380700B (zh) * 2018-03-09 2019-10-29 太原科技大学 优化头尾部矫直的辊式矫直工艺参数设定方法
AT524979B1 (de) * 2021-04-27 2025-07-15 Evg Entwicklungs U Verwertungs Ges M B H Drahtrichtmaschine und Verfahren zum Geraderichten von Draht oder Bandmaterial

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180122A (en) * 1962-02-06 1965-04-27 United States Steel Corp Sheet classifier
DE1552695A1 (de) * 1966-01-08 1970-04-16 Ungerer Irma Richt- und Abschneidemaschine
US3416340A (en) * 1966-06-08 1968-12-17 Voss Engineering Company Automatic control and indicating systems for roller levelers
DE1552110C3 (de) * 1966-08-20 1978-05-03 Ungerer Geb. Dollinger, Irma, 7530 Pforzheim Band-Richt- und Zerteilanlage
JPS5870923A (ja) * 1981-10-22 1983-04-27 Sumitomo Metal Ind Ltd 連続製造材の矯正方法
US4768363A (en) * 1984-12-03 1988-09-06 Kawasaki Steel Corporation Method of levelling two-layered clad metal sheet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104550326A (zh) * 2013-10-18 2015-04-29 沈阳东宝海星金属材料科技有限公司 一种周期性纵向变厚度板材矫直装置
CN104550326B (zh) * 2013-10-18 2016-07-13 沈阳东宝海星金属材料科技有限公司 一种周期性纵向变厚度板材矫直装置

Also Published As

Publication number Publication date
US20040069035A1 (en) 2004-04-15
US7032420B2 (en) 2006-04-25
RS50159B (sr) 2009-05-06
PT1345712E (pt) 2005-01-31
FR2818563A1 (fr) 2002-06-28
CA2432648A1 (fr) 2002-07-04
ME00794B (me) 2012-03-20
CZ20031785A3 (cs) 2004-02-18
PL361846A1 (en) 2004-10-04
CA2432648C (fr) 2009-11-17
DE60105312D1 (de) 2004-10-07
YU47003A (sh) 2004-11-25
EP1345712A1 (fr) 2003-09-24
DE60105312T2 (de) 2005-09-01
WO2002051563A1 (fr) 2002-07-04
ES2230238T3 (es) 2005-05-01
PL201321B1 (pl) 2009-03-31
ATE275007T1 (de) 2004-09-15
FR2818563B1 (fr) 2003-02-07
CZ305184B6 (cs) 2015-06-03
TR200402368T4 (tr) 2004-12-21

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