EP4100182A1 - Vorrichtung und verfahren zum an- bzw. einstellen eines walzspaltes einer zweiwalzen-richtmaschine für stäbe und/oder profile - Google Patents
Vorrichtung und verfahren zum an- bzw. einstellen eines walzspaltes einer zweiwalzen-richtmaschine für stäbe und/oder profileInfo
- Publication number
- EP4100182A1 EP4100182A1 EP21703008.9A EP21703008A EP4100182A1 EP 4100182 A1 EP4100182 A1 EP 4100182A1 EP 21703008 A EP21703008 A EP 21703008A EP 4100182 A1 EP4100182 A1 EP 4100182A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- straightening
- measuring device
- roll
- profile
- assessment
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
-
- 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
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/005—Control arrangements
- B30B11/006—Control arrangements for roller presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
- B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones
-
- 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
- B21D3/04—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 arranged on axes skew to the path of the work
Definitions
- the invention relates to a device and a method for adjusting or adjusting a roll gap of a two-roll straightening machine for bars and / or profiles.
- Rods or profiles cool after hot rolling or after heat treatment, for example on a cooling bed.
- the rods or profiles warp in three dimensions and, under certain circumstances, form helical geometries.
- the bars or profiles are straightened accordingly by cold forming.
- the straightening takes place between straightening rollers of a straightening machine, in particular a two-roll straightening machine.
- the setting of the straightening rollers such as the gap geometry, the spacing and alignment of the straightening rollers to one another, the tension locally introduced into the bar or profile and thus the resulting remaining deformation after straightening determine.
- the straightening force and the direction of the straightening force remain as the essential control or regulating variable. This is specified by the straightening gap and the alignment of the straightening rollers with respect to one another in relation to the bar or profile geometry.
- Various devices or methods are known from the prior art for adjusting the straightening rollers to one another.
- CN 2930910 Y is a hydraulic system for straightening with a regulated Directional force known.
- a change in the straightening force for the start or end of the bar by reducing the roll gap force can be found in CN 100 584 478 C.
- the alignment of the straightening rolls to one another is determined by the straightening machine type.
- a device can be taken from EP 111 4682 B1 which makes it possible to cushion impacts on the roller frame that occur during the forming of strongly warped black material. This is done in a
- Two-roll straightening machine uses a floating bearing for the straightening rolls. Hydraulic cylinders are attached between the mounts for the straightening rolls and the roll frame, which can give way if the pressure is exceeded. This allows the straightening gap to be opened for a short time and the impact on the roller frame is reduced.
- An electromechanical system for setting or adjusting a roll gap is known from CN 101 791 640 B, for example. Separate hydraulic cylinders lock or unlock the adjustment mechanism of the roll gap. The mechanics acting on the roll gap are then moved by an electric drive and the setting of the straightening rolls is changed
- the object of the invention is to further develop a known device for straightening a bar or profile in such a way that a rapid change in the roll gap and the rolling force is made possible by changing the setting of the straightening rolls to one another during straightening.
- Each straightening roller is connected to at least one fully hydraulic drive for changing the on or setting of the straightening rollers and the straightening forces occurring during the straightening are essentially, preferably completely, transferrable to the roller frame by the fully hydraulic drive.
- Fully hydraulic in the sense of the invention means that all of the adjustments and adjustments of the respective straightening roll required to change the roll gap and the rolling force are carried out by at least one hydraulic drive acting on the straightening roll. If multi-axis adjustments or adjustments are to be made to a straightening roll, several hydraulic drives in the sense of the invention can also be used for adjustment or adjustment.
- the hydraulic on or adjustment of the straightening roller enables a faster adjustment of the straightening gap compared to, for example, an electrically driven spindle, even under load.
- a hydraulic cylinder can perform a movement with sufficient accuracy using commercially available systems and at the same time absorb the forces required for straightening.
- a corresponding hydraulic system is also able to carry out very dynamic movement patterns.
- a measuring device for determining a system parameter of the two-roll straightening machine preferably a straightening force, a power consumption of the straightening drives and torques of the straightening drives
- the system parameters preferred for a straightening process are recorded.
- actual data of a bar or profile, in particular shape and dimensions can be recorded and thus made available to quality assurance.
- These data can then, for example, be part of a basis for modeling the straightening machine.
- the system parameters are recorded online. In this sense, online means that the number of acquisitions is so high and the time intervals between the acquisitions so small that a course of the system parameters can be displayed over, for example, a rod length while the rod straightening process is in progress.
- the measuring device is suitable for providing the assessment value of the rod and / or profile for assessing a diameter, a straightness, a roundness, a wall thickness, a surface flaw and / or an internal flaw.
- a measuring device can assess the condition of the bar or profile before straightening, or it can document a straightening success after straightening rolling.
- the different assessment values represent possible technically relevant actual or target values for a bar or profile in a straightening process. Similar to the system parameters, the determined assessment values can form a basis for a process model and can be used for controlling or regulating the straightening machine.
- the provision of the assessment values by the measuring device takes place, according to dependent claim 5, preferably online.
- This enables quick intervention in the straightening process in the event of unforeseen deviations or errors.
- at least one measuring device for providing an assessment value from the assessment of the rod and / or the profile is arranged in front of the straightening rollers. In this way, the deviation of the rod or the profile from the target specification can be measured and a response can be made by adjusting the roll gap accordingly. This is particularly advantageous if the deformation behavior and / or the settings required to obtain a corresponding deformation are known.
- control or regulation is a process model, having at least one analytical, empirical and / or numerical model for describing the relationship between at least one assessment value and / or at least one system parameter and control or regulating variables for the fully hydraulic drives, contains.
- a device for straightening having at least two straightening machines following one another in a line, at least one of the straightening machines is designed according to one of claims 1 to 7 according to the independent claim 8.
- the device can be set up with a rigid one
- Multi-roller straightening machine take place and then the fine straightening with a two-roller straightening machine with the roll gap setting according to the invention.
- Multi-roller straightening machine take place and then the fine straightening with a two-roller straightening machine with the roll gap setting according to the invention.
- At least one measuring device for the provision of assessment values of the rod and / or the profile is, according to dependent claim 9, arranged at least in front of the first straightening machine and / or between two straightening machines. This allows intermediate values to be recorded in the overall straightening process and used for the documentation and / or control of the straightening process.
- dependent claim 10 it is preferred if there is an overall control or regulation of the at least two straightening machines in the line and the overall control or regulation is connected to the measuring devices for the assessment values and / or the system parameters. In this way, for example, the straightening forces or stress distributions can be balanced across the line in order to avoid cracking and / or surface hardening.
- the straightening rollers are turned on or adjusted by the fully hydraulic drive assigned to the respective straightening roller, and the straightening forces occurring during the straightening are essentially transmitted to the roller frame by the fully hydraulic drive.
- Hydraulic, preferably complete, drives enable fast and dynamic movement even with high loads acting on them.
- Corresponding controls and components for hydraulic systems are freely available on the market and are inexpensive.
- a system parameter of the two-roll straightening machine preferably a straightening force, a power consumption of the straightening drives and a torque of the straightening drives, is determined by at least one measuring device.
- the acquisition of the system parameters enables control or regulation as well as overload protection of the individual straightening machine.
- a force acting on the rod or the profile can be documented by recording the straightening force.
- quality assurance for example, can be optimized. According to the dependent claim 13, it is preferred if at least one
- System parameters is determined online by the measuring device.
- the actual state of the straightening process or the straightening machine can preferably be shown to a system operator.
- a preferred embodiment of the method is when the measuring device uses values from the assessment of the rod and / or profile for assessing a diameter, a straightness, a roundness, a wall thickness, a surface defect and / or an internal defect to be provided. In this way, depending on the positioning of the measuring device, an initial state or a straightening result can be recorded.
- the measuring device uses values from the assessment of the rod and / or profile for assessing a diameter, a straightness, a roundness, a wall thickness, a surface defect and / or an internal defect to be provided.
- the values are provided by the measuring device, preferably online. In this way, data can be made available to a system operator or a control or regulation system at short notice.
- Provision of values from the assessment of the rod and / or the profile by the measuring device takes place at least in front of the straightening rollers.
- a system operator can then select appropriate target specifications for the on or setting of the straightening rollers on the basis of the values.
- the control or regulation by means of a process model, having at least one analytical, empirical and / or numerical model for describing the relationship between at least one assessment value and / or at least one system parameter and control or regulation variables for the fully hydraulic Drives, control or regulating variables for the fully hydraulic drives.
- the integration of such models in a control makes it possible for system setpoints adapted to the individual rod to be specified by the control or regulation. This reduces the number of entry rods or reduces the response time in the event of deviations.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020201477.9A DE102020201477A1 (de) | 2020-02-06 | 2020-02-06 | Vorrichtung und Verfahren zum An- bzw. Einstellen eines Walzspaltes einer Zweiwalzen-Richtmaschine für Stäbe und/oder Profile |
| PCT/EP2021/052309 WO2021156205A1 (de) | 2020-02-06 | 2021-02-01 | Vorrichtung und verfahren zum an- bzw. einstellen eines walzspaltes einer zweiwalzen-richtmaschine für stäbe und/oder profile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4100182A1 true EP4100182A1 (de) | 2022-12-14 |
Family
ID=74505273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21703008.9A Withdrawn EP4100182A1 (de) | 2020-02-06 | 2021-02-01 | Vorrichtung und verfahren zum an- bzw. einstellen eines walzspaltes einer zweiwalzen-richtmaschine für stäbe und/oder profile |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20230057403A1 (de) |
| EP (1) | EP4100182A1 (de) |
| JP (1) | JP2023512780A (de) |
| KR (1) | KR20220119152A (de) |
| DE (1) | DE102020201477A1 (de) |
| WO (1) | WO2021156205A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023211806A1 (de) * | 2023-11-27 | 2025-05-28 | Sms Group Gmbh | Verfahren zum Betreiben einer Rollenrichtmaschine für metallisches Gut |
| CN119026283A (zh) * | 2024-10-31 | 2024-11-26 | 南昌理工学院 | 一种矫直辊磨损预测方法、系统、计算机及存储介质 |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT259334B (de) * | 1964-03-24 | 1968-01-10 | Dalmine Spa | Vorrichtung zur Geraderichten von Stangen, Rohren u. dgl. |
| US3858425A (en) * | 1973-12-06 | 1975-01-07 | Sutton Eng Co | Straightening machine with overload release |
| US4534197A (en) * | 1982-03-23 | 1985-08-13 | Woolley Brown J | Method and apparatus for straightening pipe |
| US4471639A (en) * | 1982-11-01 | 1984-09-18 | E. W. Bliss Company, Inc. | Roll orientation control system for straightening machines |
| JPS61123419A (ja) * | 1984-11-16 | 1986-06-11 | Sumitomo Metal Ind Ltd | 管矯正方法 |
| JPS61253123A (ja) * | 1985-04-30 | 1986-11-11 | Kawasaki Steel Corp | 差厚板材の矯正方法及びその装置 |
| JPS61283420A (ja) * | 1985-06-07 | 1986-12-13 | Hitachi Ltd | 長尺金属材の曲り修正装置 |
| JP2586099B2 (ja) * | 1988-04-30 | 1997-02-26 | 日本精工株式会社 | 長尺材の曲り矯正方法および曲り矯正装置 |
| JPH0810850A (ja) * | 1994-06-27 | 1996-01-16 | Toko Kikai Kk | 金属製品の曲がり取り方法及び曲がり取り装置 |
| IT1288426B1 (it) * | 1997-01-23 | 1998-09-22 | Demag Italimpianti Spa | Macchina per il raddrizzamento di tubi e corpi astiformi in generale |
| DE19724300A1 (de) | 1997-06-09 | 1998-12-10 | Wrt Metallbearbeitungsmaschine | Rohr- oder Stangenrichtvorrichtung |
| JP3299944B2 (ja) * | 1999-10-15 | 2002-07-08 | 高田機工株式会社 | パネル連続矯正装置 |
| DE10000349C2 (de) | 2000-01-07 | 2002-04-04 | Sms Eumuco Gmbh | Schrägwalzen-Richtmaschine |
| JP2002282943A (ja) * | 2001-03-23 | 2002-10-02 | Kawasaki Steel Corp | H形鋼の曲がり矯正装置およびそれを用いた矯正設備列 |
| JP2002346634A (ja) * | 2001-05-23 | 2002-12-03 | Hatarii Seimitsu:Kk | 形鋼矯正方法および形鋼矯正機ならびに形鋼矯正ユニット |
| JP3914742B2 (ja) * | 2001-10-31 | 2007-05-16 | 新日本製鐵株式会社 | 全長における断面寸法形状および真直性に優れた形鋼の矯正方法 |
| JP2003305515A (ja) * | 2002-04-09 | 2003-10-28 | Nippon Steel Corp | 形鋼の矯正装置 |
| JP2006281228A (ja) * | 2005-03-31 | 2006-10-19 | Sumitomo Metal Ind Ltd | ロール式管矯正機の制御方法 |
| CN100584478C (zh) | 2005-08-22 | 2010-01-27 | 西安重型机械研究所 | 液压动态恒压矫直方法 |
| CN2930910Y (zh) | 2006-06-05 | 2007-08-08 | 洛阳锐腾机械设备有限公司 | 斜辊矫直机辊缝伺服调整装置 |
| CN101791640B (zh) | 2010-03-22 | 2012-05-30 | 中信重工机械股份有限公司 | 一种大型多斜辊矫直机平衡、锁紧缸的分配方法 |
| IT1400550B1 (it) * | 2010-06-09 | 2013-06-11 | Danieli Automation Spa | Procedimento e dispositivo per il controllo dimensionale della sezione di un prodotto laminato. |
| JP6007597B2 (ja) * | 2012-05-31 | 2016-10-12 | Jfeスチール株式会社 | 形鋼用曲り矯正装置および形鋼の曲り矯正方法 |
-
2020
- 2020-02-06 DE DE102020201477.9A patent/DE102020201477A1/de not_active Withdrawn
-
2021
- 2021-02-01 KR KR1020227025937A patent/KR20220119152A/ko not_active Ceased
- 2021-02-01 EP EP21703008.9A patent/EP4100182A1/de not_active Withdrawn
- 2021-02-01 WO PCT/EP2021/052309 patent/WO2021156205A1/de not_active Ceased
- 2021-02-01 JP JP2022547868A patent/JP2023512780A/ja active Pending
- 2021-02-01 US US17/797,523 patent/US20230057403A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20230057403A1 (en) | 2023-02-23 |
| JP2023512780A (ja) | 2023-03-29 |
| DE102020201477A1 (de) | 2021-08-12 |
| KR20220119152A (ko) | 2022-08-26 |
| WO2021156205A1 (de) | 2021-08-12 |
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