EP3595825A1 - Rollenrichtmaschine und verfahren zum betrieb einer solchen - Google Patents
Rollenrichtmaschine und verfahren zum betrieb einer solchenInfo
- Publication number
- EP3595825A1 EP3595825A1 EP18713141.2A EP18713141A EP3595825A1 EP 3595825 A1 EP3595825 A1 EP 3595825A1 EP 18713141 A EP18713141 A EP 18713141A EP 3595825 A1 EP3595825 A1 EP 3595825A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- straightening
- roller
- rotary
- machine
- 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
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
-
- 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
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0071—Levelling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/46—Roll speed or drive motor control
-
- 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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/14—Particular arrangements for handling and holding in place complete dies
- B21D37/147—Tool exchange carts
Definitions
- the invention relates to a roller leveler with a set of upper and lower straightening rollers, each straightening roller is provided with a rotary drive to, caused by a machine control, to rotate the straightening roller and so to promote a metallic flat material to be straightened in a conveying direction and thereby. Furthermore, the invention relates to a method for operating such a roller leveler.
- DE 1 930 349 A discloses both a two-sided drive of the leveling rolls, as well as their individual drive. In this solution, however, it is provided to use the two-sided drive exclusively for reasons of space, to provide sufficient space for the arrangement of individual drives.
- the KR 10 150871 1 B1 provides for a driving roller pair in front of or behind the straightening roller unit in order to apply an additional strip tension to the material. This should limit the required torques.
- special demands are placed on the entire leveling machine in order to set the best possible flatness of the material. It is necessary for the straightening process to initiate very high moments in the leveling rolls. At the same time, however, the straightening rollers must be able to realize complex flatness errors via individual control of machine functions.
- the arrangement of additional driver rollers for applying a forward or retraction has a negative effect on the straightening roller geometry, because in this way the straightening rollers are deflected in the pulling direction. Thus, the straightening gap is geometrically deformed and the straightening result is degraded.
- the invention is therefore based on the object, a roller leveling machine of the type mentioned above and a method for operating such a way that in comparison with the above-known prior art solution, an improved and optimized directional result can be achieved.
- each straightening roller has a first rotary drive which can rotate one axial end of the straightening roller and a second rotary drive which can rotate the other axial end of the straightening roller
- the machine control is designed to individually act upon the respective first and second rotary actuators after setting a value with a parameter determining the rotational movement of the straightening roller.
- the machine control can be in connection with a setpoint default, which specifies the parameters for the rotational movement of the straightening rollers for all rotary actuators.
- the machine control is preferably designed to apply a predetermined torque to the respective first and second rotary drives.
- the machine controller may be configured to apply a predetermined rotational speed to the respective first and second rotary actuators.
- the machine control can also be designed to control the parameters determining the rotational movement of the straightening roller in a closed loop.
- sensors for detecting the torque and / or the rotational speed are arranged, which are in communication with the machine control.
- the method for operating such a roller straightening machine according to the invention provides that each straightening roller has a first rotary drive, which rotates the one axial end of the straightening roller, and a second rotary drive which rotates the other axial end of the straightening roller, wherein the machine control for the respective individual values for at least one parameter determining the rotational movement of the straightening roller are specified for the first and second rotary drives.
- the machine control is optionally operated in one of the following operating modes: a) operating only the first rotary drives of the straightening rollers; b) operating only the second rotary drives of straightening rollers; c) operating both the first rotary actuators and the second rotary drives of the straightening rollers.
- the machine control can be specified by a setpoint default setpoints for the parameters for the rotational movement of the straightening rollers.
- the setpoint adjuster can be in communication with a module in which a number of different straightening strategies are stored, wherein for each straightening strategy a data set for the parameters for the rotational movement of the straightening rollers is present, wherein the module sets the setpoint default the record according to a selected straightening strategy.
- each individual straightening roller can be driven either on one side or on both sides.
- Each straightening roller drive can have its own drive control. Based on the above-described prior art solution is accordingly a roller leveling machine and a method for their operation is provided which allows optimal control of the individual, two-sided drives of each straightening roller and thus allows an individually influenced straightening process.
- It can be a setpoint specification of the drive parameters (torque, speed or rotational speed) according to the specification of a drive unit.
- the drive unit can be controlled or regulated by a directional strategy.
- the straightening strategy can take into account local changes in the straightening gap. It is a precise adjustment of the drive parameters of each driven straightening roller (in terms of speed and / or torque) possible, in particular a one-sided or a double-sided drive. It can thus also be a targeted distribution of the drive parameters on the sides and / or the selection of straightening rollers. It is also possible synchronization of the drive parameters and, if necessary, a targeted trim the drive parameters.
- the proposed solution can also be a load balancing control for targeted torque distribution, whereby an optimized utilization of the component life of the components in the drive train is possible.
- a load balancing scheme can be based on the indicative strategy. Furthermore, it is very advantageous that in the reversing operation of the straightening machine completely symmetrical conditions for the preceding straightening stitch can be set.
- a control of the (active) straightening roller drives can be carried out after specification of desired values, which are predetermined by the straightening strategy of the drive unit. Subsequently, the Execution of the straightening process with the provided or predetermined drive values for the individual straightening rollers. If necessary, a correction of the control of the active straightening roller drives can take place (in the closed control loop), ie on the basis of a desired-actual-value comparison of the drive values during a roughing pass.
- the straightening strategy can take into account error types of the material to be straightened. Likewise, wear and tear on the equipment (ie, tool wear) can be taken into account.
- the drive for the straightening rollers can be an assembly unit, which consists of an (electric or hydraulic) drive motor and possibly an associated transmission gear (including spindle, shafts and couplings, etc.). In most cases, all straightening rollers are actively driven. However, it is also possible that partially straightening rollers are not driven. Accordingly, according to the specification of an applied straightening strategy, the straightening roller drives provided for this purpose can be activated, as long as they are actively involved in the forming process of the material and should transmit torque. However, individual drives can run loosely (not driven) without transmitting torque into the roller; such rollers can also be switched off completely, their drives are then passive.
- the proposed roller leveler or the described method is preferably used in high-strength materials, in which a very high Torque of straightening rollers is needed for the straightening process. They are particularly suitable for straightening high-strength steel sheets or strips.
- results from the proposal according to the invention that can be responded individually and promptly due to the separate two-sided presetting and control of torque and / or speed of the straightening rolls on locally acting faults and flatness errors, namely at the introduction of very high torques.
- the straightening range of a straightening machine can be extended, so that the product range, which can be processed in a given system configuration, is extended.
- the size of a leveler can be reduced with existing task.
- FIG. 1 An embodiment of the invention is shown.
- the single figure shows in plan view schematically a roller leveler for straightening a metallic band.
- the figure shows a schematic representation of the top view of a roller leveler 1 with a number of straightening rollers 2, of which only one set is shown.
- an upper and a lower set of leveling rolls 2 are provided for straightening a metallic strip, not shown.
- the belt is conveyed in a conveying direction F.
- Each straightening roller 2 in this case has a rotary drive 3, which in the present case consists of a first rotary drive and a second rotary drive, which are each arranged in the two axial ends of the straightening rollers 2.
- Each straightening roller 2 thus has a drive on both sides, which can be controlled in each case by a machine control 4.
- This is exemplified for the left side of the roller leveler 1, wherein the first rotary drives Li, L 2 , ... to L n are designated.
- second rotary drives Ri, R 2 , ... to R n are provided on the right side.
- the straightening rollers 2 are given their operating parameters by the machine control 4 by the respective first and second rotary drives. This single control applies to both axial ends of the straightening rollers, so for both rotary actuators. The right-side and left-side control of all straightening rollers 2 takes place independently of each other.
- the relevant parameters for the rotary drive are specified, ie in particular the torque Md, with which the rotary drive drives the straightening rollers 2, and their speed (or rotational speed).
- the specified values for the torque or the rotational speed are maintained by the machine control 4 in a closed control loop, for which purpose sensors 6 are present (of which only one is shown in the figure), which determine the actual values (for the torque or torque) Speed) and pass it to the machine control 4, so that in case of deviations from target values, a readjustment can take place.
- the machine control 4 sends further setting parameters to the straightening machine in order to set the setting gap and to maintain it in a regulated manner at predetermined values. This is done via the employment of the immersion depth, the bending, the pivoting, the compensation systems, etc. However, this is the previously known operation of a Rollenrichtmaschine, so that said control is shown only schematically in the figure as a dashed arrow. It should be noted in this context on the mutual influence of Richtspaltdimensionen, material parameters, Anstellparametern and drive parameters, so that any change is not considered in isolation, but is taken into account as part of the overall control concept.
- the machine control 4 is connected to a setpoint generator 5, in which the concrete data for torques and speeds are available.
- the machine controller 4 thus converts the data received from the setpoint generator 5 as setpoint input into drive values for machine functionalities.
- the setpoint specification contains all the necessary parameters, including the drive parameters for setting each straightening roller of the straightening machine and the straightening gap for the respective topping.
- each straightening roller 2 can be extended by the choice between a one-sided or a two-sided (double-sided) drive, which is determined depending on the desired straightening strategy.
- a module 7 for storing and / or calculating straightening strategies is available, with which the setpoint generator is supplied.
- the selection of a defined straightening strategy thus leads to the specification of corresponding data from the module 7 to the setpoint generator 5 and further to the machine control 4.
- the proposed roller leveler 1 may have various concepts and corresponding specific construction details for changing the rollers. For this purpose, it is useful (but not necessarily required) to set the drives, at least the side to which the roll change should take place, on a common Grundrahen to as simple as possible, in a block to realize the proposed process. It can be provided an exchange of all rolls or individual rolls. In any case, the roller or the entire set of rollers must be decoupled from their drives, on both sides and for those rollers that are to be removed from the range of straightening machine. For the roll change, the drive of one side (individually or for the entirety of all rolls) is removed from the roll change zone.
- the drive is moved depending on the space conditions of the system layout in the direction of the roll axis and / or transversely, so that the space is free in front of the straightening machine to remove the set of rollers or a single roller and a new roll or a set of rolls in to introduce the leveler.
- the drive is returned to its operating position, coupled the straightening rollers to the drives and the straightening machine is ready for operation.
- the proposed roller leveler can be used to process sheets, strips and cutouts thereof.
- the material thicknesses are preferably between 1 mm and 70 mm, more preferably between 1 mm and 30 mm; the maximum material thickness is 150 mm.
- the material width is preferably between 600 mm and 6,000 mm; the maximum material width is 7,000 mm.
- the material temperature during processing in the roller leveler is less than 600 ° C.
- the yield strength of the material is preferably above 460 MPa, in particular above 800 MPa.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017204133 | 2017-03-13 | ||
| PCT/EP2018/056191 WO2018167034A1 (de) | 2017-03-13 | 2018-03-13 | Rollenrichtmaschine und verfahren zum betrieb einer solchen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3595825A1 true EP3595825A1 (de) | 2020-01-22 |
| EP3595825B1 EP3595825B1 (de) | 2020-10-14 |
Family
ID=61768253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18713141.2A Active EP3595825B1 (de) | 2017-03-13 | 2018-03-13 | Rollenrichtmaschine und verfahren zum betrieb einer solchen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20200269300A1 (de) |
| EP (1) | EP3595825B1 (de) |
| JP (1) | JP6815531B2 (de) |
| CN (1) | CN110418682A (de) |
| DE (1) | DE102018203746A1 (de) |
| WO (1) | WO2018167034A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116984421A (zh) * | 2023-09-25 | 2023-11-03 | 太仓庄正数控设备有限公司 | 一种矫平机的滚筒控制方法及系统 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112850264B (zh) * | 2021-01-08 | 2022-06-28 | 佛山市三水南钢实业有限公司 | 一种不间断钢卷卷取设备 |
| CN116900092A (zh) * | 2023-07-25 | 2023-10-20 | 北京京诚之星科技开发有限公司 | 实现微张力矫直的主传动系统及矫直机 |
| DE102023211806A1 (de) * | 2023-11-27 | 2025-05-28 | Sms Group Gmbh | Verfahren zum Betreiben einer Rollenrichtmaschine für metallisches Gut |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1930349A1 (de) * | 1969-06-14 | 1970-12-17 | Siemag Siegener Maschb Gmbh | Richtwalzenantrieb fuer Blechrichtmaschinen |
| JPS5152357A (en) * | 1974-11-01 | 1976-05-08 | Kobe Steel Ltd | Kinzokuitazaino roorukyoseisochi |
| JPS6130223A (ja) * | 1984-07-20 | 1986-02-12 | Mitsubishi Heavy Ind Ltd | ブライドルロ−ル駆動装置 |
| US4614099A (en) * | 1984-07-27 | 1986-09-30 | Teledyne, Inc. | Rolling mill |
| JPS62199222A (ja) * | 1986-02-27 | 1987-09-02 | Mitsubishi Heavy Ind Ltd | ロ−ラレベラのトルク循環低減方法 |
| JPH11221618A (ja) * | 1998-02-06 | 1999-08-17 | Sumitomo Heavy Ind Ltd | 板状物自動矯正装置 |
| JP4559939B2 (ja) * | 2005-09-06 | 2010-10-13 | 新日本製鐵株式会社 | 厚鋼板矯正ラインの通板監視方法及び通板監視装置 |
| WO2007037085A1 (ja) | 2005-09-27 | 2007-04-05 | Scivax Corporation | 熱インプリント用樹脂 |
| US8893537B2 (en) * | 2007-11-07 | 2014-11-25 | The Bradbury Company, Inc. | Methods and apparatus to drive material conditioning machines |
| CN201720282U (zh) * | 2010-06-23 | 2011-01-26 | 康凤明 | 双驱动辊式矫平机 |
| CN101885014A (zh) * | 2010-06-23 | 2010-11-17 | 康凤明 | 双驱动辊式矫平机 |
| CN101927280B (zh) * | 2010-09-01 | 2012-10-17 | 攀钢集团钢铁钒钛股份有限公司 | 钢轨端部平直度矫直方法 |
| 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 |
| JP2012171005A (ja) | 2011-02-24 | 2012-09-10 | Jp Steel Plantech Co | ローラレベラおよび金属板の矯正方法 |
| EP2572810A1 (de) * | 2011-09-22 | 2013-03-27 | Siemens VAI Metals Technologies SAS | Richtanordnung |
| CN203235784U (zh) * | 2013-04-26 | 2013-10-16 | 武汉钢实热轧协力有限责任公司 | 一种板材矫平机驱动装置 |
| CN104801571A (zh) * | 2015-03-26 | 2015-07-29 | 长治钢铁(集团)锻压机械制造有限公司 | 两端合流驱动的高强度钢板校平机 |
-
2018
- 2018-03-13 WO PCT/EP2018/056191 patent/WO2018167034A1/de not_active Ceased
- 2018-03-13 EP EP18713141.2A patent/EP3595825B1/de active Active
- 2018-03-13 CN CN201880017724.3A patent/CN110418682A/zh active Pending
- 2018-03-13 US US16/493,925 patent/US20200269300A1/en not_active Abandoned
- 2018-03-13 DE DE102018203746.9A patent/DE102018203746A1/de not_active Withdrawn
- 2018-03-13 JP JP2019547264A patent/JP6815531B2/ja not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116984421A (zh) * | 2023-09-25 | 2023-11-03 | 太仓庄正数控设备有限公司 | 一种矫平机的滚筒控制方法及系统 |
| CN116984421B (zh) * | 2023-09-25 | 2023-12-08 | 太仓庄正数控设备有限公司 | 一种矫平机的滚筒控制方法及系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3595825B1 (de) | 2020-10-14 |
| JP2020508879A (ja) | 2020-03-26 |
| US20200269300A1 (en) | 2020-08-27 |
| CN110418682A (zh) | 2019-11-05 |
| JP6815531B2 (ja) | 2021-01-20 |
| DE102018203746A1 (de) | 2018-09-13 |
| WO2018167034A1 (de) | 2018-09-20 |
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