EP2237902B1 - Verfahren und biegeeinrichtung zum progressiven anbiegen eines metallbandes im einlaufbereich einer dornlosen bandhaspeleinrichtung - Google Patents
Verfahren und biegeeinrichtung zum progressiven anbiegen eines metallbandes im einlaufbereich einer dornlosen bandhaspeleinrichtung Download PDFInfo
- Publication number
- EP2237902B1 EP2237902B1 EP09708830A EP09708830A EP2237902B1 EP 2237902 B1 EP2237902 B1 EP 2237902B1 EP 09708830 A EP09708830 A EP 09708830A EP 09708830 A EP09708830 A EP 09708830A EP 2237902 B1 EP2237902 B1 EP 2237902B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bending
- metal strip
- rollers
- driven
- roller
- 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
Links
- 238000005452 bending Methods 0.000 title claims abstract description 161
- 239000002184 metal Substances 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 19
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- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
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- 238000009826 distribution Methods 0.000 claims description 2
- -1 BL12 Proteins 0.000 abstract 1
- 101000575029 Bacillus subtilis (strain 168) 50S ribosomal protein L11 Proteins 0.000 abstract 1
- 102100035793 CD83 antigen Human genes 0.000 abstract 1
- 101001093025 Geobacillus stearothermophilus 50S ribosomal protein L7/L12 Proteins 0.000 abstract 1
- 101000946856 Homo sapiens CD83 antigen Proteins 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 8
- 238000004804 winding Methods 0.000 description 6
- 230000000750 progressive effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
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- 238000004904 shortening Methods 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
- B21C47/08—Winding-up or coiling without making use of a reel or drum, the first turn being formed by a stationary guide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/003—Regulation of tension or speed; Braking
Definitions
- the invention relates to a method for the progressive bending of a metal strip, preferably a hot strip, in particular a hot rolled steel strip, in the inlet region of a thornless band reeling device, wherein the metal strip is guided and bent by rotationally driven bending rolls.
- a bending device for the progressive bending of a metal strip in the inlet region of a thornless band reeling device with a plurality of rotationally driven bending rollers is proposed.
- hot-rolled, windable metal strip is wound up into a bundle after emerging from a rolling stand or after leaving the last rolling stand of a rolling train in a band reeling device.
- This winding process can be done either with the involvement of a coiler mandrel or thornless.
- thornless winding of the metal strip in a Bandcoiler- it is necessary to bend the incoming metal strip in a bending device, so that in the Bandhaspel coupled can form a compact wound coil.
- the bending device comprises two above a Band carefullyweges arranged driven bending rollers and arranged below the Band properlyweges adjustable and driven bending roller, which is located in the strip running direction of the metal strip at a distance between the two above arranged bending rollers.
- the adjustable bending roller With the adjustable bending roller the bending radius of the set to be added metal band, with changing tape thicknesses can be considered.
- the driven upper bending rollers a common drive unit with a transfer case and the lower bending roller associated with a single drive. Since the metal strip has different radii of curvature during its transport through the bending device at the respective contact lines with the bending rollers, local slippage occurs between the bending roller and the metal strip, which leads to surface damage (scoring) on the metal strip.
- a method according to the preamble of claim 1 is for example from the US-A-2877821 known. Presentation of the invention
- the object of the present invention is therefore to avoid the disadvantages of the known prior art and to propose a method and a bending device in which slippage between the metal strip and the Anbiegerollen and resulting surface damage to the metal strip are largely avoided.
- the peripheral speed of all driven bending rollers at the respective contact line with the metal strip surface is set to the surface speed of the metal strip at the contact line.
- the tape passage path of the metal strip between the bending rollers is determined not only by the position of the bending rollers to each other, but also by feed conditions resulting from the last roll stand or Zu2010rollgang, and by drainage conditions or by repercussions from the Bund Struktur, such as the current Collar diameter, significantly influenced.
- These complex relationships require an individual control of the driven bending rollers in order to be able to set optimal conditions for the respective operating state. This is ensured by adjusting the peripheral speed of each driven bending roller in the bending device to the surface speed of the metal strip at the respective contact line.
- the surface velocity of the metal strip at the contact line with the bending roller in dependence on the instantaneous positions of the bending rollers involved in the bending process and state variables of the metal strip determined in a mathematical model and depending on the peripheral speed or set the speed of each driven bending roller.
- the mathematical model includes a calculation rule for determining the strains and compressions occurring at the contact line of driven bending rolls and metal strip surface and / or the resulting radius of curvature of the metal strip and depending on the calculated values, the peripheral speed or the rotational speed of each driven bending roll is determined set.
- the metal strip thickness, the metal strip temperature and the quality of the metal strip are incorporated into the mathematical model as default values or as measured values.
- the inlet and outlet angle of the metal strip in or out of the bending device is of great importance. Especially the outlet angle from the Bending device is significantly influenced by the current collar diameter and changes the tape passage behavior in the bending device.
- the instantaneous drive torque or a correlating size of one or more driven bending rollers continuously measured and at a drop in the drive torque or falls below a target torque the speed of the rotary drives (drive motors) or the bending rollers or the peripheral speed of the bending rollers in the sense of optimizing the drive torque distribution is changed or regulated.
- alarm signals can be generated, which allow further manual intervention.
- each driven bending roller is connected to an independently controllable rotary drive and all rotary actuators a common control device for setting individual peripheral speeds or speeds for each Bending roll assigned.
- the control device comprises a computing unit with at least one mathematical model for determining the rotational speed or peripheral speed of each driven bending roller with respect to the respective contact line with the metal strip surface, wherein the rotational speed or the circumferential speed in dependence on the instantaneous positions of the bending roll involved in the bending process and of State variables of the metal strip is determined.
- the mathematical model is based on the principles of strength theory and takes into account the material behavior of the metal strip in the elastic and plastic range.
- the bending device comprises at least three driven, independently controllable bending rollers.
- the control of the bending rollers here refers exclusively to the rotary drive of the bending rollers.
- Each rotary drive a bending roller are associated with measuring devices for detecting the rotational speed of the rotary drive or the bending roller and the drive torque or a correlating size of the rotary drive, and a controller for controlling the speed of the bending roller.
- the detection of the current drive torque can be done for example by a power consumption measurement with a power consumption meter.
- At least one of the driven bending rollers is supported in bearing blocks for axially parallel displacement of the bending roller, wherein the bearing blocks are connected to an adjustment and the adjusting device comprises an actuator and a position transmitter and this actuator is operatively connected to the control device.
- the bearing blocks are assigned guides. These guides can equally be arranged on special guide blocks that do not simultaneously form the bearing blocks.
- two upper driven bending rollers are supported in bearing blocks for axially parallel displacement of the bending rollers.
- the two upper bending rollers can be positioned so that the continuous metal strip downstream impose a predetermined curvature becomes.
- the adjusting blocks associated with the bearing blocks can be controlled independently of one another.
- the two upper, driven bending rollers are supported and guided in a common support frame.
- FIG. 1 shows a schematic representation of the basic arrangement of a bending device 1 in the inlet region 2 of a thornless band reeling device 3, which connects to a rolling stand 4 or a last rolling stand 4 of a rolling train.
- a rollable in the rolling stand 4 wound metal strip 5 is fed via a roller table 6 and arbitrarily configured guide means 7 of the bending device 1 and bent during the passage through the bending device 1 and provided with a curvature, after the entry of the metal strip in the thornless tape coiler 3, the winding the metal band to a compact wound collar 8 allows.
- the collar 8 is indicated by a dashed line with a small diameter in an intermediate position of the winding process and with dotted line with its maximum diameter.
- the wound collar is supported during the winding process on two rotatable support rollers 10.
- the bending device 1 comprises three rotationally driven bending rollers 11, 12, 13, of which two bending rollers are arranged above and one bending roller below a band passageway 14. Thus, a three-point bend of the implemented by passing metal strip.
- Each bending roller 11, 12, 13 is associated with a rotary drive 15, 16, 17 formed by an electric motor, wherein the rotary drives can be controlled independently of one another as required.
- the rotary actuators are connected to a control device 18 common to all rotary drives via signal lines for transmitting actual values of the rotary drives to the control device and manipulated variables from the control device to the rotary drives.
- the bending rollers 11, 12, 13 are rotatably mounted in bearing blocks 19, 20, 21, which in turn are supported in a housing, not shown, of the bending device.
- At least one, in the illustrated embodiment, two of these bearing blocks 19, 20 are slidably supported on guides 22 for axially parallel displacement of the bending rollers 11, 12 and connected to an adjusting device 23 for implementing changes in position of the bending rollers 11,12.
- the adjusting devices 23 each comprise an actuator 24 formed by a pressure medium cylinder, to which a position transmitter 25 is assigned. From the position sensor, the respective actual position of the bending roller can be transmitted to the control device 18 and manipulated variables are applied to the actuator 24. With the controlled positioning of the bending rollers 11, 12 relative to the further bending roller 13, the curvature of the metal strip can be specified at the output from the bending device as a function of various influencing variables.
- the invention is in no way limited to the positioning of the upper bending rollers 11, 12 relative to the further bending roller 13.
- the adjustment of the bending rollers relative to one another can take place more or less equally by the displacement of one or more bending rolls forming the bending device.
- the employment can hereby with different structural solutions, for example linear, as in FIG. 1 represented, or with a lever or a lever system.
- FIG. 2 illustrates the strip pass of the progressively curved metal strip through the bending device along the tape passage 14.
- the rolled metal strip leaves the mill with the belt transport speed v and at this speed passes through the bending device and enters the belt reel device at this speed.
- the tape transport speed v refers to the neutral fiber of the Metal strip.
- Each bending roller 11, 12, 13 is along a contact line BL 11 , BL 12 , BL 13 , which in FIG. 2 normal to the image plane, in contact with the strip surface of the passed metal strip.
- the metal strip has instantaneous surface velocities V 11 , V 12 , V 13 , which at different radii of curvature, each consisting of the normal distance of the instantaneous center MP 11 , MP 12 , MP 13 from the associated contact line BL 11, BL 12 , BL 13 represent different sizes.
- a largely slip-free transmission of a drive torque from the driven bending roller on the metal strip is only possible if the surface speed of the metal strip at the contact line of the bending roller with the metal strip surface of the peripheral speed of the bending roller or taking into account the roller diameter of the rotational speed n 11 , n 12 , n 13 the driven bending roller corresponds.
- all bending rollers of the bending device are driven rollers. It is well within the scope of the invention, if one or more of the bending rollers form only with the metal belt follower rollers, however, make a contribution to the bending of the metal strip.
- the control device 18 comprises a computing unit 26 (process computer) in which at least one mathematical model for calculating strains and compressions on the belt surface, or the instantaneous surface speed V 11 , V 12 , V 13 on the contact lines BL 11, BL 12 , BL 13 the bending rollers is deposited with the metal strip surface. Based on predefined or measured input variables, such as bandwidth, strip thickness, steel quality, inlet temperature, desired bending radius and fixed bending roll positions, according to the principles of strength doctrine including the plastic behavior of the metal strip Strains and compressions on the strip surface, or values of the instantaneous surface speed at the contact lines of the bending rolls with the metal strip surface are calculated.
- predefined or measured input variables such as bandwidth, strip thickness, steel quality, inlet temperature, desired bending radius and fixed bending roll positions, according to the principles of strength doctrine including the plastic behavior of the metal strip Strains and compressions on the strip surface, or values of the instantaneous surface speed at the contact lines of the bending rolls with the metal strip surface are calculated.
- inlet and outlet conditions can be defined and taken into account, for example, resulting from the tape length in the inlet side belt run or by transport-related forces or occur on the outlet side by the continuously increasing collar diameter.
- the rotary actuators are assigned an anti-slip regulation.
- the rotational speeds of the individual bending rollers or the rotary drives and the current consumption values of the rotary actuators are continuously detected and fed to regulators for speed control.
- Target rotational speeds of the individual bending rollers which are matched to the expected surface speed can be specified as empirical values or calculated by the mathematical model. Sudden changes in the current consumption of individual bending rollers are a criterion for the occurrence of slip and trigger the regulation. This can be done for example by voltage correction signals.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Control Of Metal Rolling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09708830T PL2237902T3 (pl) | 2008-02-08 | 2009-01-16 | Sposób i urządzenie gnące do progresywnego naginania taśmy metalowej w obszarze wlotowym beztrzpieniowego urządzenia zwijającego |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0020708A AT506331B1 (de) | 2008-02-08 | 2008-02-08 | Verfahren und biegeeinrichtung zum progressiven anbiegen eines metallbandes im einlaufbereich einer dornlosen bandhaspeleinrichtung |
PCT/EP2009/000267 WO2009097957A1 (de) | 2008-02-08 | 2009-01-16 | Verfahren und biegeeinrichtung zum progressiven anbiegen eines metallbandes im einlaufbereich einer dornlosen bandhaspeleinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2237902A1 EP2237902A1 (de) | 2010-10-13 |
EP2237902B1 true EP2237902B1 (de) | 2011-08-24 |
Family
ID=40638068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09708830A Active EP2237902B1 (de) | 2008-02-08 | 2009-01-16 | Verfahren und biegeeinrichtung zum progressiven anbiegen eines metallbandes im einlaufbereich einer dornlosen bandhaspeleinrichtung |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2237902B1 (es) |
CN (1) | CN101970144B (es) |
AT (2) | AT506331B1 (es) |
BR (1) | BRPI0908819A2 (es) |
ES (1) | ES2371909T3 (es) |
PL (1) | PL2237902T3 (es) |
WO (1) | WO2009097957A1 (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103693476B (zh) * | 2013-09-17 | 2015-12-23 | 西安麦特沃金液控技术有限公司 | 带材制品单排多层式收卷机 |
JP6298331B2 (ja) * | 2014-03-20 | 2018-03-20 | Primetals Technologies Japan株式会社 | シュートロールを備えたコイラー装置 |
WO2016091855A1 (de) * | 2014-12-10 | 2016-06-16 | Sms Group Gmbh | Vorrichtung zum aufwickeln eines metallischen bandes |
CN107138554A (zh) * | 2017-06-29 | 2017-09-08 | 广东含元工业技术有限公司 | 一种金属板带材收卷机 |
CN108817170B (zh) * | 2018-06-04 | 2020-03-17 | 成都浩益科技有限公司 | 一种金属卷材加工系统以及加工方法 |
DE102018209664A1 (de) | 2018-06-15 | 2019-12-19 | Sms Group Gmbh | Verschleißreduzierung bei Coilboxrollen |
CN110844651B (zh) * | 2019-11-21 | 2021-02-09 | 泰州市赛鸥网业有限公司 | 一种用于织网机的自动卷曲装置 |
CN112705595A (zh) * | 2020-12-25 | 2021-04-27 | 中冶南方工程技术有限公司 | 捆带收集装置及方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2877821A (en) * | 1954-08-04 | 1959-03-17 | Bliss E W Co | Upcoiler with rolls independently driven at surface speed of material being coiled |
US3645120A (en) * | 1970-02-19 | 1972-02-29 | Gulf & Western Ind Prod Co | Coiling apparatus |
JPS54148162A (en) * | 1978-05-12 | 1979-11-20 | Hitachi Ltd | Belt plate winder |
JPS62279021A (ja) * | 1986-05-27 | 1987-12-03 | Kawasaki Steel Corp | シ−トバ−の巻取り方法 |
-
2008
- 2008-02-08 AT AT0020708A patent/AT506331B1/de not_active IP Right Cessation
-
2009
- 2009-01-16 AT AT09708830T patent/ATE521428T1/de active
- 2009-01-16 CN CN2009801044911A patent/CN101970144B/zh active Active
- 2009-01-16 BR BRPI0908819-9A patent/BRPI0908819A2/pt not_active IP Right Cessation
- 2009-01-16 PL PL09708830T patent/PL2237902T3/pl unknown
- 2009-01-16 ES ES09708830T patent/ES2371909T3/es active Active
- 2009-01-16 WO PCT/EP2009/000267 patent/WO2009097957A1/de active Application Filing
- 2009-01-16 EP EP09708830A patent/EP2237902B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
CN101970144B (zh) | 2013-02-06 |
PL2237902T3 (pl) | 2012-01-31 |
BRPI0908819A2 (pt) | 2015-07-28 |
CN101970144A (zh) | 2011-02-09 |
WO2009097957A1 (de) | 2009-08-13 |
ATE521428T1 (de) | 2011-09-15 |
AT506331A1 (de) | 2009-08-15 |
EP2237902A1 (de) | 2010-10-13 |
AT506331B1 (de) | 2010-03-15 |
ES2371909T3 (es) | 2012-01-11 |
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