EP0182062A2 - Réglage du cylindre d'appui pour machines à dresser - Google Patents
Réglage du cylindre d'appui pour machines à dresser Download PDFInfo
- Publication number
- EP0182062A2 EP0182062A2 EP85112714A EP85112714A EP0182062A2 EP 0182062 A2 EP0182062 A2 EP 0182062A2 EP 85112714 A EP85112714 A EP 85112714A EP 85112714 A EP85112714 A EP 85112714A EP 0182062 A2 EP0182062 A2 EP 0182062A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- straightening
- rolls
- adjustment
- support
- rollers
- 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.)
- Granted
Links
Images
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 invention relates to a support roller adjustment of N support rollers per straightening roller in straightening machines for straightening strips and sheets in the passage, which have successive trains of straightening rollers and complementary rollers against which the straightening rollers can be adjusted in the direction of the straightening material.
- the three-dimensional curvatures which usually occur during the rolling process due to different lengths of the fibers of the rolled strip, require the greater amount of mechanical straightening.
- the straightening rollers (or the respective "straightening roller trains" formed by the successive straightening rollers) are immersed between the complementary straightening rollers to different depths over their effective length - which must be slightly more than the width of the straightening material.
- the leveling material is stretched at the positions of greater immersion depth than the fibers parallel to it. It is thus possible to match the fiber lengths to one another. This can be used to correct all planning errors.
- the straightening rolls In order to achieve different immersion depths between the complementary rolls over the effective length of the straightening rolls, the straightening rolls must be bent elastically.
- the support rollers supporting the straightening rollers are used for this.
- These back-up rolls are arranged over the effective length of the straightening roll - depending on the width, between 3 and about 13 back-up rolls - and support the straightening roll against the pressure exerted by the straightening material.
- the straightening roller is also a straight bar.
- the straightening roll is elastically bent as expected, thereby increasing the depth of immersion between the complementary straightening rolls and thus, in turn, the extension of the straightening material in this fiber.
- the criterion for the adjustment and for the adjustment is "best judging result" on the target.
- the advantage of the invention lies in the fact that the specified back-up rolls can now be adjusted as required for an optimal straightening result and that the free back-up rolls are automatically adjusted after calculating the pitch from the function describing the deformation of the straightening roll so that they rest securely on the straightening roll. This eliminates the need for the operating personnel to observe and correct the operating state that follows each adjustment. The dependence on the individual skill of the operator is significantly reduced.
- the defined readjustment of the free support rollers in contact with the leveling roller is also a significant improvement in the leveling ability of a leveling machine.
- the load distribution over the straightening roller depends on the condition of the straightening good, but the load distribution determines the deformation of the straightening roller, the setting of the specified back-up rollers alone (in the case of free supporting rollers not in contact) cannot determine the actual bending of the straightening roller for all operating states. Rather, the changes in the load distribution over the straightening roller lead to changing deformations of the straightening roller due to changing flatness errors of the straightening material and thus to changing stretching of the straightening material. As a result, the effect of an adjustment on the leveling material becomes ambiguous, which makes training operating personnel considerably more difficult.
- the state of deformation is determined by the setting of the K-specifying support rollers and is retained with every load distribution, because the adjusted free support rollers intercept every change in load by reactive changes in support force.
- the deformation of the straightening roller then remains essentially unchanged.
- equation (4) is used to check again whether there are negative loads.
- the matrix / A / is created by calculation from the respective straightening parameters: the machine constants, such as the straightening roll length, the straightening roll diameter, the number of backing rolls, the backing roll distance and the constants of the straightening goods, such as the sheet thickness, sheet width and yield strength.
- the calculation of the IArexp-1 sweeping matrices assigned to the matrix / A / requires computing time.
- the reversing matrices are therefore stored in a storage medium to increase the calculation speed. They are then immediately available for every calculation.
- the adjustment of the free back-up rolls can also be carried out by providing the supports of the back-up rolls with load sensors, that K-specifying back-up rolls are set freely beyond the back-up roll alignment, that the adjustment of the NK-free back-up rolls is only carried out as long as the adjustment of the specifying back-up rolls continues and that all NK load sensors indicate a positive load.
- the tracking process of the free back-up rolls can be carried out directly and quickly in the "upward control", that is to say the increase in the employment.
- the control of the machine must also be suspended, for example, when the end of the material to be straightened (for example in the direction of the table) is reached so that the control remains stable. Additional parameters must therefore be monitored and processed.
- the "downward regulation”, that is to say the reduction in the employment, is carried out by resetting all the support rollers with a similarity transformation of the deflection of all the support rollers.
- the setting of the specifying support rollers takes place in three sections, the load sensors of the free support rolls indicating a positive load in the first section during the setting of the specifying support rolls, and the adjustment only during the adjustment of the specifying support rolls Back-up rolls take place in the second section, the adjustment of the free back-up rolls is calculated from the function describing the deformation of the straightening roll and adjusted by the controllable adjusting means, and in the third section a downward regulation takes place while maintaining the relative back-up roll heights.
- the control criterion can be a predetermined total pressure between straightening rolls and complementary rolls, which is obtained by adding up the loads.
- the support rollers can be actuated by hydraulic means, because this makes feedback adjustments of the support rollers particularly easy.
- hydraulically operated pulling wedges leads to a robust arrangement that is adapted to the operating conditions that exist when straightening sheet metal.
- back-up roll is a predetermined support roll and is automatically set, for which the fluctuations in the leveling material measured by N sensors on N fibers of the leveling material have a minimum, the amount of the adjustment being proportional to the fluctuation, and the remaining N-1 back-up rolls are adjusted according to the invention on the specifying support roller.
- the advantage of this device is that regulation is now possible, which uses, for example, the fluctuation of the target material measured before the straightening process as a control variable, and the fluctuation measured after the straightening process as a control variable.
- Example la The general calculation scheme for calculating the matrix of the influencing numbers for a specific machine configuration defined in the coefficients.
- Example IIa The simultaneous matrix of the influencing numbers for three backup rolls.
- Example Ilb The inverse matrices of the simultaneous matrix lla.
- Example III Example calculation for an adjustment process.
- Fig. 1 there are straightening rolls 100,101,102 .. the complementary rolls ... 1000,1001, .... Support roller pairs 10001, 10002 .... 1000N support the straightening roller 100.
- the support roller pairs are arranged in a starting position on a support roller alignment FL parallel to the axis of the straightening roller.
- rollers 100, 101, 102 .. form a straightening roller train, the support rollers of which are treated in the same way during adjustment by adjusting the support rollers.
- a roller is referred to in the following, the single drum roller is therefore meant.
- Fig.la. shows the course of the leveling material R between the leveling rolls 100, 101, 102, .. and the complementary rolls 1000, 1 001, 10, 11 , 1021 ..
- the straightening effect is achieved by straightening the straightening material in the plastic-elastic area at the beginning of the process due to a slight inclination of the straightening roller level towards the complementary roller level, but then smoothing it out and guiding it into the elastic area by the subsequent straightening rollers.
- the inclination angles used in the longitudinal and transverse directions are set accordingly for the respective straightening good.
- the supports L1, L2, .. which can be designed, for example, in a known arrangement as hydraulically operated pulling wedges, support the support rollers 10001, 10002, .. on the machine frame 2000.
- load cells KS1, KS2 .. for example piezoelectric transducers, can be provided, with which the applied loads can be measured.
- FIG. 2 shows a modification of the case of five backup rolls as a schematic form of FIG. 1b.
- the support roller 10002 is the default in this example, the support rollers 1 0001, 10003, 10004, 10005 are free support rollers.
- the supports are at positions X1, X2 ...
- the straightening roller bearing distance is LD.
- the support rollers 10001 ... have a bale length of u and the support center distance xi-xi + is t
- the deflections are measured with position sensors LS1, LS2, .. Load cells KS 1 , KS2 ... can also be provided.
- Such a matrix / Aii / is (for reasons of clarity in the case of three backup rolls) in example, Ilb calculated with the parameters of the straightening roll given there.
- the matrix / A / has to be recalculated for every straightening machine, every straightening good and every load distribution F (i). During the straightening process, however, it is unchanged (with constant loads F (i)).
- the reversing matrices, example Ilb, are calculated for typical load cases (in these unit vectors occur at the points where there were negative loads on the backup roller) and serve to determine the backup roller heights.
- the setting of the device is carried out in such a way that the measured values of the position sensors LS1, LS2 .. are fed into the computer DV, that when the supports ST1, ST2, ... are adjusted, the adjustment is also known and the computing process is thereby triggered, the necessary Matrices and their reciprocal values can be read by the computer DV from the memory MM.
- the "downward control” that is to say the reduction in the immersion depth of the straightening roller, can always take place in such a way that the positions found in the "upward control" are reduced by a similarity transformation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Wire Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT85112714T ATE45895T1 (de) | 1984-10-16 | 1985-10-08 | Stuetzwalzenverstellung fuer richtmaschinen. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843437777 DE3437777A1 (de) | 1984-10-16 | 1984-10-16 | Stuetzwalzenverstellung fuer richtmaschinen |
| DE3437777 | 1984-10-16 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0182062A2 true EP0182062A2 (fr) | 1986-05-28 |
| EP0182062A3 EP0182062A3 (en) | 1987-09-30 |
| EP0182062B1 EP0182062B1 (fr) | 1989-08-30 |
Family
ID=6247937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85112714A Expired EP0182062B1 (fr) | 1984-10-16 | 1985-10-08 | Réglage du cylindre d'appui pour machines à dresser |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4698990A (fr) |
| EP (1) | EP0182062B1 (fr) |
| AT (1) | ATE45895T1 (fr) |
| DE (1) | DE3437777A1 (fr) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0371280A3 (fr) * | 1988-11-26 | 1991-05-02 | Sms Schloemann-Siemag Aktiengesellschaft | Procédé de dressage de tôles, bandes, plaques, profilés, poutres etc. |
| EP0570770A1 (fr) * | 1992-05-21 | 1993-11-24 | Sms Schloemann-Siemag Aktiengesellschaft | Procédé et machine de dressage pour dresser des tôles et bandes |
| EP0730918A1 (fr) * | 1995-03-08 | 1996-09-11 | SOLLAC (Société Anonyme) | Procédé et dispositif de planage de produits plats métalliques, tels que bandes, toles ou feuilles |
| WO1996032212A1 (fr) * | 1995-04-14 | 1996-10-17 | Clecim | Planeuse a rouleaux imbriques et procede de mise en ×uvre d'une telle planeuse |
| FR2732913A1 (fr) * | 1995-04-14 | 1996-10-18 | Clecim Sa | Planeuse a rouleaux imbriques et procede de mise en oeuvre d'une telle planeuse |
| US7530250B2 (en) | 2004-08-28 | 2009-05-12 | Sms Demag Ag | Method for straightening a metal strip and straightening machine |
| DE102017124027A1 (de) * | 2017-10-16 | 2019-04-18 | Schuler Automation Gmbh & Co. Kg | Verfahren, Vorrichtung und Computerprogrammprodukt zum Einstellen der Biegung zumindest einer Richtwalze einer Walzenrichtmaschine |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4881392A (en) * | 1987-04-13 | 1989-11-21 | Broken Hill Proprietary Company Limited | Hot leveller automation system |
| US5758533A (en) * | 1994-04-15 | 1998-06-02 | Clecim | Imbricated roll planisher and process for its use |
| FR2739578B1 (fr) * | 1995-10-06 | 1998-01-02 | Clecim Sa | Planeuse a cylindres paralleles |
| FR2816530B1 (fr) * | 2000-11-15 | 2003-02-07 | Usinor | Procede de reglage d'une planeuse sous traction et dispositif correspondant |
| US6598445B2 (en) | 2001-04-16 | 2003-07-29 | Automatic Feed Company | Leveling machine and method |
| US6769279B1 (en) * | 2002-10-16 | 2004-08-03 | Machine Concepts, Inc. | Multiroll precision leveler with automatic shape control |
| DE102010056616A1 (de) * | 2010-12-23 | 2012-06-28 | Hegenscheidt-Mfd Gmbh & Co. Kg | Verfahren zum Richtwalzen von Kurbelwellen |
| DE102012204074A1 (de) * | 2012-03-15 | 2013-09-19 | Sms Siemag Ag | Vorrichtung zum Richten von Metallband |
| US9459086B2 (en) | 2014-02-17 | 2016-10-04 | Machine Concepts, Inc. | Shape sensor devices, shape error detection systems, and related shape sensing methods |
| US10363590B2 (en) | 2015-03-19 | 2019-07-30 | Machine Concepts, Inc. | Shape correction leveler drive systems |
| US11833562B2 (en) | 2016-12-21 | 2023-12-05 | Machine Concepts, Inc. | Dual-stage multi-roll leveler and metal strip material flattening method |
| US10710135B2 (en) | 2016-12-21 | 2020-07-14 | Machine Concepts Inc. | Dual-stage multi-roll leveler and work roll assembly |
| CN107377680A (zh) * | 2017-06-23 | 2017-11-24 | 成都飞机工业（集团）有限责任公司 | 一种滚弯壁板的校形方法 |
| CN114570791B (zh) * | 2020-11-30 | 2024-08-09 | 宝山钢铁股份有限公司 | 一种提高酸洗冷连轧机组矫直机安装及调整辊子压下精度的方法与装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2049142A (en) * | 1933-09-14 | 1936-07-28 | Ungerer Fritz | Plate straightening machine |
| US2091789A (en) * | 1934-12-11 | 1937-08-31 | Hedwig Maussnest | Sheet straightening machine |
| DE1853619U (de) * | 1958-03-26 | 1962-06-20 | Fritz Dipl Ing Ungerer | Vorrichtung zur ermittlung von messwerten fuer das richten von blechen in richtmaschinen. |
| US3236079A (en) * | 1961-06-15 | 1966-02-22 | Ungerer Fritz | Control device for metal straightening machine and a method for operating such machine |
| DE1934496A1 (de) * | 1969-07-08 | 1971-01-21 | Schloemann Ag | Walzenrichtmaschine fuer Blech und Band |
| AT365485B (de) * | 1980-02-21 | 1982-01-25 | Voest Alpine Ag | Vorrichtung zum abstuetzen einer arbeitswalze einer blechbiege- oder -richtmaschine |
| DE3308616C2 (de) * | 1983-03-11 | 1993-11-25 | Schloemann Siemag Ag | Verfahren und Maschine zum Richten von Blech |
-
1984
- 1984-10-16 DE DE19843437777 patent/DE3437777A1/de not_active Ceased
-
1985
- 1985-10-08 EP EP85112714A patent/EP0182062B1/fr not_active Expired
- 1985-10-08 AT AT85112714T patent/ATE45895T1/de active
- 1985-10-10 US US06/786,316 patent/US4698990A/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0371280A3 (fr) * | 1988-11-26 | 1991-05-02 | Sms Schloemann-Siemag Aktiengesellschaft | Procédé de dressage de tôles, bandes, plaques, profilés, poutres etc. |
| EP0570770A1 (fr) * | 1992-05-21 | 1993-11-24 | Sms Schloemann-Siemag Aktiengesellschaft | Procédé et machine de dressage pour dresser des tôles et bandes |
| EP0730918A1 (fr) * | 1995-03-08 | 1996-09-11 | SOLLAC (Société Anonyme) | Procédé et dispositif de planage de produits plats métalliques, tels que bandes, toles ou feuilles |
| FR2731372A1 (fr) * | 1995-03-08 | 1996-09-13 | Lorraine Laminage | Procede et dispositif de planage de produits plats metalliques, tels que bandes, toles ou feuilles |
| WO1996032212A1 (fr) * | 1995-04-14 | 1996-10-17 | Clecim | Planeuse a rouleaux imbriques et procede de mise en ×uvre d'une telle planeuse |
| FR2732912A1 (fr) * | 1995-04-14 | 1996-10-18 | Clecim Sa | Planeuse a rouleaux imbriques |
| FR2732913A1 (fr) * | 1995-04-14 | 1996-10-18 | Clecim Sa | Planeuse a rouleaux imbriques et procede de mise en oeuvre d'une telle planeuse |
| US7530250B2 (en) | 2004-08-28 | 2009-05-12 | Sms Demag Ag | Method for straightening a metal strip and straightening machine |
| DE102017124027A1 (de) * | 2017-10-16 | 2019-04-18 | Schuler Automation Gmbh & Co. Kg | Verfahren, Vorrichtung und Computerprogrammprodukt zum Einstellen der Biegung zumindest einer Richtwalze einer Walzenrichtmaschine |
| WO2019076886A1 (fr) | 2017-10-16 | 2019-04-25 | Schuler Pressen Gmbh | Procédé, dispositif et produit programme d'ordinateur pour régler la courbure d'au moins un galet de dressage d'une machine de dressage à galets |
| DE102017124027B4 (de) * | 2017-10-16 | 2021-06-10 | Schuler Pressen Gmbh | Verfahren, Vorrichtung und Computerprogrammprodukt zum Einstellen der Biegung zumindest einer Richtwalze einer Walzenrichtmaschine |
| US11596989B2 (en) | 2017-10-16 | 2023-03-07 | Schuler Pressen Gmbh | Method and computer program product for setting the bending of at least one straightening roller of a roller straightening machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0182062A3 (en) | 1987-09-30 |
| ATE45895T1 (de) | 1989-09-15 |
| DE3437777A1 (de) | 1986-04-24 |
| EP0182062B1 (fr) | 1989-08-30 |
| US4698990A (en) | 1987-10-13 |
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