EP1345712B1 - Procede de regulation en temps reel d'une planeuse - Google Patents
Procede de regulation en temps reel d'une planeuse Download PDFInfo
- 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
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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
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Soil Working Implements (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Control Of Metal Rolling (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Coloring (AREA)
- Electrophonic Musical Instruments (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Fuel Cell (AREA)
- Road Paving Structures (AREA)
- Processing Of Meat And Fish (AREA)
- Crushing And Grinding (AREA)
- Paper (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
- la mesure du cintre d'une plaque lors du changement de produit et l'adaptation du serrage des rouleaux en sortie par l'opérateur imposent de stopper la ligne de planage pendant cette opération, d'où une perte de productivité ;
- certaines lignes de planage sont compactes, et il n'est pas toujours possible d'y implanter un dispositif de levage des plaques ; dans ce cas la mesure du cintre de la plaque est effectuée hors ligne avec un temps d'arrêt de la ligne plus important encore ;
- l'opération de levage de la plaque peut comporter des risques pour la sécurité de l'opérateur, notamment pour les plaques de grandes dimensions (supérieures à 2 m de long).
après avoir plané ladite bande, on la découpe pour obtenir, une plaque, ou une feuille; caractérisé en ce que:
- on mesure la courbure de ladite plaque issue soit du planage de la bande découpée, soit du planage de la plaque, en sortie de ladite planeuse hors d'une zone d'appui ;
- on corrige ladite mesure de manière à éliminer l'influence due au poids propre de la plaque; et
- on corrige, le cas échéant, le serrage des rouleaux situés en sortie de ladite planeuse de manière à obtenir une plaque de cintre contrôlé.
- la mesure du cintre résiduel de la plaque planée est réalisée à partir d'une mesure de la courbure de ladite plaque en sortie de la planeuse hors de ladite zone d'appui, ladite mesure étant effectuée au moyen d'au moins trois capteurs de distance.
- la mesure du cintre résiduel de la plaque planée est déduite de la courbure mesurée et de la courbure propre de la plaque planée.
- les moyens de mesure du cintre résiduel comportent au moins trois capteurs de distance tels que des capteurs de distance optiques, ou des capteurs de distance à courant de Foucault.
- l'installation de planage comprend des moyens automatiques pour régler le serrage des rouleaux de sortie en fonction des indications des mesures de distances des capteurs.
- la mesure de la courbure de la plaque planée est réalisée au niveau de ladite plaque planée hors d'une zone d'appui.
- la figure 1 est une vue schématique en coupe transversale d'une planeuse ;
- la figure 2 montre la variation de la valeur du cintre résiduel en fonction du serrage des rouleaux en sortie de planeuse.
- longueur L' de la plaque 8 qui dépasse hors de la table 7, déterminée par une cellule de position 10,
- épaisseur de la plaque 8,
- distance des capteurs 9 par rapport à la table 7,
- amélioration des conditions de sécurité ;
- suppression du temps de manutention des plaques permettant ainsi d'augmenter la productivité globale de la ligne ;
- rapidité d'exécution des corrections du serrage des rouleaux, dans le cas
- opération de contrôle du cintre de la plaque facile à mettre en oeuvre, on n'est pas limité aux plaques de longueur inférieure à 3 m pour des épaisseurs de 3 mm comme c'était le cas avec le procédé de l'art antérieur ;
- gain de place : le dispositif selon l'invention est compatible avec les lignes compactes, il nécessite un espace plus réduit que celui nécessité par le levage de la plaque.
- contrôle systématique du cintre de toutes les plaques (archivage des valeurs)
Claims (9)
- Procédé pour réguler en temps réel une planeuse destinée à planer des bandes métalliques, des plaques ou des feuilles, dans lequelaprès avoir plané ladite bande (5), on la découpe pour obtenir, une plaque planée (8), ou une feuille planée, caractérisé en ce que :on mesure la courbure de ladite plaque planée (8) issue soit du planage de la bande (5) découpée, soit du planage de la plaque (5), en sortie de ladite planeuse (1) hors d'une zone d'appui ;on corrige ladite mesure de manière à éliminer l'influence due au poids propre de la plaque planée (8) ; eton corrige, le cas échéant, le serrage des rouleaux (4a) et (4b) situés en sortie de ladite planeuse (1 ) de manière à obtenir une plaque planée (8) de cintre contrôlé.
- Procédé selon la revendication 1, caractérisé en ce que la mesure du cintre résiduel de la plaque planée (8) est réalisée à partir d'une mesure de la courbure de ladite plaque planée (8) en sortie de la planeuse (1) hors de ladite zone d'appui, ladite mesure étant effectuée au moyen d'au moins trois capteurs de distance (9).
- Procédé selon les revendications 1 à 2, caractérisé en ce que la mesure du cintre résiduel de la plaque planée (8) est déduite de la courbure mesurée et de la courbure propre de la plaque planée (8).
- Installation de planage du type comprenant une planeuse pour planer des bandes métalliques, des plaques, ou des feuilles comportant des moyens pour découper, après planage, la bande (5) en plaques planées (8) ou en feuilles planées caractérisé en ce qu'elle comprend des moyens de mesure du cintre résiduel des plaques planées (8) ou feuilles planées issues soit du planage de la bande (5) découpée, soit du planage de la plaque (5) ou de la feuille, en sortie de la planeuse (1), et des moyens pour modifier le serrage des rouleaux (4a) et (4b) situés en sortie de ladite planeuse (1 ) en fonction des indications fournies par les moyens de mesure dudit cintre résiduel.
- Installation de planage selon la revendication 4, caractérisé en ce que lesdits moyens de mesure du cintre résiduel comportent au moins trois capteurs de distance (9).
- Installation de planage selon la revendication 4 à 5, caractérisé en ce que lesdits moyens de mesure du cintre résiduel comportent au moins trois capteurs de distance optiques (9).
- Installation de planage selon la revendication 4 à 5, caractérisé en ce que lesdits moyens de mesure du cintre résiduel comportent au moins trois capteurs de distance à courant de Foucault (9).
- Installation de planage selon les revendications 4 à 7, caractérisé en ce qu'elle comprend des moyens automatiques pour régler le serrage des rouleaux de sortie (4a) et (4b) en fonction des indications des mesures de distances des capteurs (9).
- Installation de planage selon les revendications 4 à 8, caractérisé en ce que la mesure de la courbure de la plaque planée (8) est réalisée au niveau de ladite plaque planée (8) hors d'une zone d'appui.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0017085 | 2000-12-27 | ||
FR0017085A FR2818563B1 (fr) | 2000-12-27 | 2000-12-27 | Procede de regulation en temps reel d'une planeuse |
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 (fr) |
EP (1) | EP1345712B1 (fr) |
AT (1) | ATE275007T1 (fr) |
CA (1) | CA2432648C (fr) |
CZ (1) | CZ305184B6 (fr) |
DE (1) | DE60105312T2 (fr) |
ES (1) | ES2230238T3 (fr) |
FR (1) | FR2818563B1 (fr) |
ME (1) | ME00794B (fr) |
PL (1) | PL201321B1 (fr) |
PT (1) | PT1345712E (fr) |
RS (1) | RS50159B (fr) |
TR (1) | TR200402368T4 (fr) |
WO (1) | WO2002051563A1 (fr) |
Cited By (1)
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 (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE525196C2 (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 |
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 |
AT524979A1 (de) * | 2021-04-27 | 2022-11-15 | Evg Entwicklungs U Verwertungs Ges M B H | Drahtrichtmaschine und Verfahren zum Geraderichten von Draht oder Bandmaterial |
Family Cites Families (6)
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 |
WO1986003435A1 (fr) * | 1984-12-03 | 1986-06-19 | Kawasaki Steel Corporation | Procede de correction du gauchissement d'une plaque metallique a revetement bicouche |
-
2000
- 2000-12-27 FR FR0017085A patent/FR2818563B1/fr not_active Expired - Fee Related
-
2001
- 2001-12-14 US US10/451,542 patent/US7032420B2/en not_active Expired - Lifetime
- 2001-12-14 DE DE60105312T patent/DE60105312T2/de not_active Expired - Lifetime
- 2001-12-14 CZ CZ2003-1785A patent/CZ305184B6/cs not_active IP Right Cessation
- 2001-12-14 PT PT01272062T patent/PT1345712E/pt unknown
- 2001-12-14 EP EP01272062A patent/EP1345712B1/fr not_active Expired - Lifetime
- 2001-12-14 PL PL361846A patent/PL201321B1/pl unknown
- 2001-12-14 ME MEP-2009-156A patent/ME00794B/fr unknown
- 2001-12-14 AT AT01272062T patent/ATE275007T1/de active
- 2001-12-14 CA CA002432648A patent/CA2432648C/fr not_active Expired - Lifetime
- 2001-12-14 ES ES01272062T patent/ES2230238T3/es not_active Expired - Lifetime
- 2001-12-14 TR TR2004/02368T patent/TR200402368T4/xx unknown
- 2001-12-14 WO PCT/FR2001/003992 patent/WO2002051563A1/fr not_active Application Discontinuation
-
2003
- 2003-06-11 RS YUP-470/03A patent/RS50159B/sr unknown
Cited By (2)
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 |
---|---|
PL201321B1 (pl) | 2009-03-31 |
ATE275007T1 (de) | 2004-09-15 |
PL361846A1 (en) | 2004-10-04 |
US7032420B2 (en) | 2006-04-25 |
FR2818563B1 (fr) | 2003-02-07 |
PT1345712E (pt) | 2005-01-31 |
WO2002051563A1 (fr) | 2002-07-04 |
TR200402368T4 (tr) | 2004-12-21 |
CZ20031785A3 (cs) | 2004-02-18 |
ME00794B (fr) | 2012-03-20 |
EP1345712A1 (fr) | 2003-09-24 |
US20040069035A1 (en) | 2004-04-15 |
FR2818563A1 (fr) | 2002-06-28 |
RS50159B (sr) | 2009-05-06 |
YU47003A (sh) | 2004-11-25 |
DE60105312T2 (de) | 2005-09-01 |
DE60105312D1 (de) | 2004-10-07 |
CA2432648A1 (fr) | 2002-07-04 |
CZ305184B6 (cs) | 2015-06-03 |
ES2230238T3 (es) | 2005-05-01 |
CA2432648C (fr) | 2009-11-17 |
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