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EP3595825B1 - Dresseuse à galets et procédé pour faire fonctionner une dresseuse à galets - Google Patents

Dresseuse à galets et procédé pour faire fonctionner une dresseuse à galets Download PDF

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Publication number
EP3595825B1
EP3595825B1 EP18713141.2A EP18713141A EP3595825B1 EP 3595825 B1 EP3595825 B1 EP 3595825B1 EP 18713141 A EP18713141 A EP 18713141A EP 3595825 B1 EP3595825 B1 EP 3595825B1
Authority
EP
European Patent Office
Prior art keywords
straightening
roll
machine
machine control
rolls
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
EP18713141.2A
Other languages
German (de)
English (en)
Other versions
EP3595825A1 (fr
Inventor
Olaf HAUSMANN
Helmut Jax
Bernd Bohnenkamp
Roman Dehmel
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.)
SMS Group GmbH
Original Assignee
SMS Group GmbH
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 SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3595825A1 publication Critical patent/EP3595825A1/fr
Application granted granted Critical
Publication of EP3595825B1 publication Critical patent/EP3595825B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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 roll straightening machine with a set of upper and lower straightening rolls, each straightening roll being provided with a rotary drive to rotate the straightening roll, caused by a machine control, and thus conveying and straightening a metallic flat material to be straightened in a conveying direction.
  • the invention also relates to a method for operating such a roll straightening machine.
  • the DE 1 930 349 A which is a basis for the preambles of the independent claims 1 and 7, discloses both a bilateral drive for the straightening rollers and their individual drive.
  • the US 2013/327109 A1 or the KR 10 1508711 B1 provides a pair of driving rollers in front of or behind the straightening roller unit in order to apply additional tape tension to the material. This is intended to limit the torques required.
  • the KR 10 1508711 B1 provides a pair of driving rollers in front of or behind the straightening roller unit in order to apply additional tape tension to the material. This is intended to limit the torques required.
  • the invention is therefore based on the object of developing a roller straightening machine of the type mentioned at the outset and a method for operating such in such a way that an improved and optimized straightening result can be achieved in comparison with the previously known solution explained above.
  • the solution to this object by the invention is characterized in that the machine control is designed to apply a parameter determining the rotational movement of the straightening roll to the respective first and second rotary drives individually according to a value specified.
  • the machine control can be connected to a setpoint presetting device which prescribes the parameters for the rotary movement of the straightening rollers for all rotary drives.
  • the machine control is preferably designed to apply a predetermined torque to the respective first and second rotary drives.
  • the machine control can be designed to act on the respective first and second rotary drives with a predetermined rotational speed.
  • the machine control can also be designed to regulate the parameters determining the rotational movement of the straightening roller in a closed control loop.
  • sensors for detecting the torque and / or the rotational speed are arranged in the area of the first and second rotary drives and are connected to the machine control.
  • the method for operating such a roller straightening machine provides that each straightening roller has a first rotary drive which rotates one axial end of the straightening roller, and a second rotary drive which rotates the other axial end of the straightening roller, with the machine control for the respective first and second rotary drives, individual values for at least one parameter which determines the rotary movement of the straightening roller are specified.
  • Setpoint values for the parameters for the rotary movement of the straightening rollers can be specified for the machine control by a setpoint value generator.
  • the setpoint generator can be connected to a module in which a number of different straightening strategies are stored, with a data record for the parameters for the rotational movement of the straightening rollers being available for each straightening strategy, the module providing the setpoint generator with the data set 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.
  • a roller straightening machine and a method for its operation are accordingly provided, which enables optimal control of the individual, bilateral drives of each straightening roller and thus allows an individually influenceable straightening process.
  • a setpoint specification of the drive parameters can take place according to the specification of a control unit.
  • the control unit can be controlled or regulated by a straightening strategy.
  • the straightening strategy can take local changes in the straightening gap into account.
  • a precise setting of the drive parameters of each driven straightening roller (with regard to speed and / or torque) is possible, in particular a one-sided or a two-sided drive.
  • a targeted distribution of the drive parameters to the sides and / or the selection of the straightening rollers can thus also take place. It is also possible to synchronize the drive parameters and, if necessary, also to trim the drive parameters in a targeted manner.
  • the proposed solution can also be used for load balancing control for targeted torque distribution, which enables optimized utilization of the component life of the components in the drive train.
  • load balancing regulation can take place on the basis of the straightening strategy.
  • the (active) straightening roller drives can first be controlled according to the specification of setpoint values that are specified by the straightening strategy of the control unit. Then the Execution of the straightening process with the intended or specified drive values for the individual straightening rolls. If necessary, the control of the active straightening roller drives can be corrected (in a closed control loop), ie on the basis of a setpoint / actual value comparison of the drive values during a straightening pass.
  • the drives can be regulated or controlled separately or jointly. As mentioned, synchronized operation of the drives is also possible.
  • the straightening strategy can take into account the types of defects in the material to be straightened. Signs of wear and tear on the system (i.e. in particular wear on the tools) can also be taken into account.
  • the drive for the straightening rollers can be an assembly unit consisting of an (electric or hydraulic) drive motor and, if necessary, an associated transmission gear (including spindle, shafts and couplings, etc.).
  • the straightening roller drives provided for this purpose can be activated if they are actively involved in the forming process of the material and are to transmit torque.
  • individual drives can also run loosely (not driven) without transmitting a torque to the roller; Such rollers can also be switched off completely; their drives are then passive.
  • the proposed roller straightening machine or the explained method is preferably used for high-strength materials for which a very high Torque of the straightening rolls is required for the straightening process. They are particularly suitable for straightening high-strength steel sheets or strips.
  • the proposal according to the invention thus results in the fact that the separate two-sided presetting and regulation of the torque and / or speed of the straightening rollers can react individually and promptly to locally acting distortions and flatness errors, namely when introducing very high torques.
  • the straightening range of a straightening machine can thus be expanded, so that the product range that can be processed with a given system configuration is expanded. This means that, in the given case, there is no need to invest in an additional straightening machine, because a greater coverage of the product range can be achieved. Alternatively, the size of a straightening machine can be reduced if the task at hand is present.
  • a change in the straightening effect can also be set in a targeted manner by changing the torque on one or more straightening rollers on one or both sides, so that a further effective actuator for improving flatness is provided for the known adjustment of the straightening rollers (by adjusting, bending, pivoting).
  • FIG. 1 An exemplary embodiment of the invention is shown in the drawing.
  • the single figure shows a schematic plan view of a roller straightening machine for straightening a metallic strip.
  • the figure shows a schematic representation of the top view of a roller straightening machine 1 with a number of straightening rollers 2, of which only one set is shown.
  • An upper and a lower set of straightening rollers 2 are provided for straightening a metallic strip (not shown).
  • the strip is conveyed in a conveying direction F.
  • Each straightening roll 2 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 rolls 2.
  • Each straightening roll 2 has a drive on both sides which can be controlled by a machine control 4. This is shown as an example for the left-hand side of the roller straightening machine 1, the first rotary drives L 1 , L 2 ,... To L n being designated.
  • Second rotary drives R 1 , R 2 , ... to R n are accordingly provided on the right-hand side.
  • the straightening rolls 2 are given their operating parameters by the machine control 4 through the respective first and second rotary drives. This individual control applies to both axial ends of the straightening rollers, i.e. to both rotary drives.
  • the right-hand and left-hand control of all straightening rollers 2 takes place independently of one another.
  • the relevant parameters for the rotary drive are specified for them by the machine control, i.e. specifically the torque Md with which the rotary drive drives the straightening rollers 2, as well as their speed (or rotational speed).
  • the specified values for the torque or the speed are adhered to by the machine control 4 in a closed control loop, for which sensors 6 are present (only one of which is shown in the figure), which the actual values (for the torque or the Speed) and pass it on to the machine control 4 so that readjustment can take place in the event of deviations from the setpoint values.
  • the machine control 4 transmits further adjustment parameters to the straightening machine in order to set the straightening gap and to maintain it in a controlled manner at specified values. This is done by adjusting the immersion depth, bending, pivoting, compensation systems, etc. This is, however, the previously known mode of operation of a roller straightening machine, so that said control is only shown schematically in the figure as a dashed arrow.
  • the machine control 4 is connected to a setpoint presetting device 5 in which the specific data for torques and speeds are available.
  • the machine control 4 thus converts the data received from the setpoint presetting device 5 as setpoint presetting into control values for machine functionalities.
  • the setpoint specification contains all the necessary parameters, including the drive parameters for setting each straightening roll of the straightening machine and the straightening gap for the respective straightening pass.
  • each straightening roller 2 can be expanded to include a choice between a one-sided or a two-sided (both-sided) drive, which is specified depending on the desired straightening strategy.
  • a module 7 for storing and / or calculating straightening strategies, with which the setpoint value preset is supplied. The selection of a defined straightening strategy thus leads to the specification of corresponding data from module 7 to setpoint value presetting device 5 and further to machine control 4.
  • a targeted distribution of the drive parameters can be set so that the drives are synchronized or controlled or regulated with an intended, fixed trim. In this way, the directing influence on the item to be straightened can be specified in a targeted manner.
  • the individual control of the two drives of each straightening roll is particularly advantageous with regard to load balancing control of two adjacent straightening rolls. This enables positive effects on the service life of the drives to be achieved through targeted torque distribution.
  • the integration of the drive control in a regulation ie the adaptation of the manipulated variables torque Md or speed n, is shown on the right-hand side of the figure.
  • the measured variables Md and / or n are determined from the drive train by the sensor 6 and sent as a target / actual value comparison to the machine control 4, which corrects the control deviation.
  • This individual control is provided for each right-hand and left-hand drive.
  • This control loop is shown in the illustration of Figure 1 limited to drive R1.
  • the proposed roller straightening machine 1 can have various concepts and corresponding specific construction details for changing the rollers. For this purpose it makes sense (but not absolutely necessary) to place the drives, at least on the side to which the roll change is to take place, on a common base frame in order to implement the intended movement as simply as possible, in one block. An exchange of all rollers or individual rollers can be provided. 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 area of the straightening machine.
  • the drive on one side (individually or for the entirety of all rolls) is removed from the roll change zone.
  • the drive is shifted in the direction of the roll axis and / or across it, so that the space in front of the straightening machine is free to remove the set of rolls or a single roll and insert a new roll or set of rolls bring in the straightening machine.
  • the proposed roller straightening machine can be used for processing metal sheets, strips and sections thereof.
  • the material thicknesses are preferably between 1 mm and 70 mm, particularly 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 straightening machine is less than 600 ° C.
  • the yield point of the material is preferably above 460 MPa, in particular above 800 MPa.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Claims (10)

  1. Dresseuse du type à galets (1) comprenant un ensemble de cylindres de dressage supérieurs et inférieurs (2) ; dans laquelle chaque cylindre de dressage (2) est équipé d'un entraînement en rotation (3) qui est destiné, par le biais d'une commande de machine (4), à mettre en rotation les cylindres de dressage (2) et, de cette manière, à transporter un matériau plat métallique qui doit être soumis à un dressage, dans une direction de transport (F) et à le dresser par la même occasion ; dans laquelle chaque cylindre de dressage (2) présente un premier entraînement en rotation (L1, L2, ..., Ln) qui peut mettre en rotation une des extrémités axiales des cylindres de dressage (2), et présente un deuxième entraînement en rotation (R1, R2, ..., Rn) qui peut mettre en rotation l'autre extrémité axiale des cylindres de dressage (2), caractérisée en ce que la commande de machine (4) est réalisée d'une manière telle qu'elle sollicite les premiers et deuxièmes entraînements en rotation respectifs (L1, L2, ..., Ln, R1, R2, ..., Rn), après spécification d'une valeur, de manière individuelle, avec un paramètre qui détermine le mouvement rotatif des cylindres de dressage (2).
  2. Dresseuse du type à galets selon la revendication 1, caractérisée en ce que la commande de machine (4) est mise en relation avec un dispositif (5) de spécification d'une valeur de consigne qui spécifie, pour tous les entraînements en rotation (L1, L2, ..., Ln, R1, R2, ..., Rn), les paramètres qui sont destinés au mouvement rotatif des cylindres de dressage (2).
  3. Dresseuse du type à galets selon la revendication 1 ou 2, caractérisée en ce que la commande de machine (4) est réalisée d'une manière telle qu'elle sollicite les premiers et deuxièmes entraînements en rotation respectifs (L1, L2, ..., Ln, R1, R2, ..., Rn) avec un couple de rotation (Md) qui a été prédéfini.
  4. Dresseuse du type à galets selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que la commande de machine (4) est réalisée d'une manière telle qu'elle sollicite les premiers et deuxièmes entraînements en rotation respectifs (L1, L2, ..., Ln, R1, R2, ..., Rn) avec une vitesse de rotation (n) qui a été prédéfinie.
  5. Dresseuse du type à galets selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la commande de machine (4) est réalisée d'une manière telle qu'elle règle les paramètres qui déterminent le mouvement rotatif des cylindres de dressage (2) dans un circuit de commande fermé.
  6. Dresseuse du type à galets selon la revendication 5, caractérisée en ce que, dans la zone des premiers et deuxièmes entraînements en rotation (L1, L2, ..., Ln, R1, R2, ..., Rn), sont disposés des capteurs (6) destinés à l'enregistrement du couple de rotation (Md) et/ou de la vitesse de rotation (n), qui sont mis en relation avec la commande de machine (4).
  7. Procédé destiné à l'exploitation d'une dresseuse du type à galets (1) qui présente un ensemble de cylindres de dressage supérieurs et inférieurs (2) ; dans lequel chaque cylindre de dressage (2) est équipé d'un entraînement en rotation (3) qui est destiné, par le biais d'une commande de machine (4), à mettre en rotation les cylindres de dressage (2) et, de cette manière, à transporter un matériau plat métallique qui doit être soumis à un dressage, dans une direction de transport (F) et à le dresser par la même occasion ; dans lequel chaque cylindre de dressage (2) présente un premier entraînement en rotation (L1, L2, ..., Ln) qui peut mettre en rotation une des extrémités axiales des cylindres de dressage (2), et présente un deuxième entraînement en rotation (R1, R2, ..., Rn) qui peut mettre en rotation l'autre extrémité axiale des cylindres de dressage (2), caractérisé en ce que, par l'intermédiaire de la commande de machine (4), on spécifie, pour les premiers et deuxièmes entraînements en rotation respectifs (L1, L2, ..., Ln, R1, R2, ..., Rn), des valeurs individuelles pour au moins un paramètre qui détermine le mouvement rotatif des cylindres de dressage (2).
  8. Procédé selon la revendication 7, caractérisé en ce que la commande de machine (4) peut être mise en service selon ce que l'on souhaite dans un des modes d'exploitation repris ci-après :
    a) un actionnement uniquement des premiers entraînements en rotation (L1, L2, ..., Ln) des cylindres de dressage (2) ;
    b) un actionnement uniquement des deuxièmes entraînements en rotation (R1, R2, ..., Rn) des cylindres de dressage (2) ;
    c) un actionnement aussi bien des premiers entraînements en rotation (L1, L2, ..., Ln) que des deuxièmes entraînements en rotation (R1, R2, ..., Rn) des cylindres de dressage (2).
  9. Procédé selon la revendication 7 ou 8, caractérisé en ce que des valeurs de consigne pour les paramètres qui sont destinés au mouvement rotatif des cylindres de dressage (6) sont spécifiées à la commande de machine (4) à partir d'un dispositif de spécification de valeurs de consigne (5).
  10. Procédé selon la revendication 9, caractérisé en ce que le dispositif de spécification de valeurs de consigne (5) est mis en relation avec un module (7) dans lequel sont mémorisées une multitude de stratégies de dressage différentes ; dans lequel, pour chaque stratégie de dressage, on dispose d'un ensemble de données pour les paramètres qui sont destinés au mouvement rotatif des cylindres de dressage (2) ; dans lequel le module (7) spécifie l'ensemble de données au dispositif de spécification de valeurs de consigne (5), conformément à une stratégie de dressage qui a été sélectionnée.
EP18713141.2A 2017-03-13 2018-03-13 Dresseuse à galets et procédé pour faire fonctionner une dresseuse à galets Active EP3595825B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017204133 2017-03-13
PCT/EP2018/056191 WO2018167034A1 (fr) 2017-03-13 2018-03-13 Dresseuse à galets et procédé pour faire fonctionner une dresseuse à galets

Publications (2)

Publication Number Publication Date
EP3595825A1 EP3595825A1 (fr) 2020-01-22
EP3595825B1 true EP3595825B1 (fr) 2020-10-14

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Application Number Title Priority Date Filing Date
EP18713141.2A Active EP3595825B1 (fr) 2017-03-13 2018-03-13 Dresseuse à galets et procédé pour faire fonctionner une dresseuse à galets

Country Status (6)

Country Link
US (1) US20200269300A1 (fr)
EP (1) EP3595825B1 (fr)
JP (1) JP6815531B2 (fr)
CN (1) CN110418682A (fr)
DE (1) DE102018203746A1 (fr)
WO (1) WO2018167034A1 (fr)

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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
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
DE102023211806A1 (de) * 2023-11-27 2025-05-28 Sms Group Gmbh Verfahren zum Betreiben einer Rollenrichtmaschine für metallisches Gut

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Also Published As

Publication number Publication date
EP3595825A1 (fr) 2020-01-22
JP2020508879A (ja) 2020-03-26
WO2018167034A1 (fr) 2018-09-20
DE102018203746A1 (de) 2018-09-13
JP6815531B2 (ja) 2021-01-20
US20200269300A1 (en) 2020-08-27
CN110418682A (zh) 2019-11-05

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