EP0348777B1 - Commande pour trains de laminoirs à profilés - Google Patents

Commande pour trains de laminoirs à profilés Download PDF

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Publication number
EP0348777B1
EP0348777B1 EP89111074A EP89111074A EP0348777B1 EP 0348777 B1 EP0348777 B1 EP 0348777B1 EP 89111074 A EP89111074 A EP 89111074A EP 89111074 A EP89111074 A EP 89111074A EP 0348777 B1 EP0348777 B1 EP 0348777B1
Authority
EP
European Patent Office
Prior art keywords
speed
control
vertical
rolls
stand
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.)
Expired - Lifetime
Application number
EP89111074A
Other languages
German (de)
English (en)
Other versions
EP0348777A3 (en
EP0348777A2 (fr
Inventor
Bernd Onderka
Paul Dr. Mauk
Georg Engel
Hugo Dr. Feldmann
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 Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag AG
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 Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0348777A2 publication Critical patent/EP0348777A2/fr
Publication of EP0348777A3 publication Critical patent/EP0348777A3/de
Application granted granted Critical
Publication of EP0348777B1 publication Critical patent/EP0348777B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21B37/48—Tension control; Compression control
    • B21B37/52—Tension control; Compression control by drive motor control
    • 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
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/088—H- or I-sections

Definitions

  • the invention relates to a method for controlling universal rolls in a continuously operated profile train, the vertical rolls being trailed during the rolling process and the speed of the driven horizontal rolls of each universal stand being subjected to regulation, and to a device for carrying out the method.
  • the combination of features according to the preamble of claim 1 and according to the preamble of claim 7 is known from practice.
  • the rolling of profiles in the known universal rolling process is characterized in that, starting from a preliminary profile (dog bone), the end profile is produced by rolling in two roll gaps (horizontal roll gap and vertical roll gap). The lengthening of the profile parts during the stitch is not the same.
  • JP-A-55 126 311 also proposes motor-driven vertical rolls in which the speed ratio of the horizontal rolls or the vertical rolls to one another is regulated in order to regulate the profile shape.
  • JP-A-55 094 704 also proposes heavy motors which are complex to couple to the vertical rollers and which are used to regulate the vertical roller speed.
  • the invention has for its object all of the above. Eliminate disadvantages in order to obtain very dimensionally stable products without twisting or internal tension.
  • the speed of the vertical rolls of at least one universal stand is regulated during the rolling process by means of their adjusting devices as actuators. This ensures that the speed of both the horizontal rollers and that of the vertical rollers is adjusted to a certain size. This eliminates fluctuations in speed between the horizontal and vertical rollers. The different material flows caused by speed fluctuations can also be prevented.
  • the two vertical rolls of a universal stand can be controlled separately.
  • the regulation of the vertical roller speed in connection with the knowledge of the caliber space, the flange width and using a hydraulic adjustment or a rolling moment separately for each vertical roller enables regulation of the mass flow to ensure the straight running of the profile and compliance with the extension ratios in the profile parts. This applies in particular to the rolling of asymmetrical profiles to ensure perfect straight running or a targeted pre-bending during rolling in order to obtain a largely straight profile after the cooling bed or to counteract a bending of the profile by pre-bending.
  • the horizontal roller control and the vertical roller control of each universal stand can be mutually influenced in order to set an optimal flow sheath.
  • control devices of the universal scaffolds can be mutually influenced in order to regulate optimal draft conditions between the scaffolds of the road. It makes sense to control at least one universal scaffold, but preferably several or all of the universal scaffolds on a carrier line.
  • Such regulations can be used to set optimal positions of the flow sheath and thus an optimal setting of the cross flow within the rolling stock during rolling.
  • a regulation can also be used to introduce optimal draft ratios between the scaffolds, for example for a minimal draft regulation, expediently selecting a scaffold of the carrier line as the guide scaffold which is not subject to the regulation.
  • At least one of the vertical rolls of a universal stand is assigned a speed pickup
  • the Speed sensor acts as the actual value transmitter of a control loop
  • the control loop the speed setpoint can be specified manually or from a memory and / or from the control loop of another roller of the same stand.
  • the control loop works on the adjusting device for the vertical rolls. Further particularly expedient refinements of the device result from the features of the invention which are further developed according to claims 11 and 12.
  • control loop 1 shows a control loop 1 for the horizontal roll of a universal stand, not shown, a control loop 2 for a vertical roll and a control loop 3 for the second vertical roll of a universal stand, not shown.
  • the outputs x, y, z of the control loops 1, 2, 3 act on the drives or adjusting devices (not shown) of the horizontal or vertical rollers.
  • the control loops 1, 2, 3 are connected to the respective actual values of the speed by digital angle step sensors 4, 5, 6 arranged on the respective rollers.
  • the target speed for the control loops 1, 2, 3 are taken from the multiplier 7.
  • multiplier 7 is that of a scaffold control loop 8 outgoing speed setpoint for each control loop 1, 2, 3 multiplied by a factor stored in a memory 9.
  • the factors for the control loops 1, 2, 3 can be the same. As a rule, however, at least the factors for the horizontal roller control loops and for the two vertical roller control loops will be different. However, this does not rule out that the factors for the two vertical control loops can also be different.
  • the actual values are applied to the scaffold control loop 8 via the connections a, b, c by the angle step sensors 4, 5, 6 and via the connection d.
  • connection d of the scaffolding control loop 8 e.g. the speed values of the profiles to be rolled are pending.
  • the setpoints for the scaffold control loop 8 are applied to it by a superimposed control loop 10.
  • a control value is supplied to the control circuit 10 from a memory 11.
  • the setpoint value stored in the memory 11 can represent, for example, the power consumption of the roll stand after tapping, but before the profile enters the next stand.
  • the actual value is stored once in the memory 11 by the power meter 12 before the profile enters the next stand. After the rolling stock has entered the next stand, the actual value is applied to the control circuit 10 by the power meter 12, so that this regulates the stand in the profile mill to a power consumption that is close to the power consumption of an individual stand. For example, a minimal tension between the scaffolding is achieved.
  • a target speed for the scaffold control circuit 8 can be tapped at the output of the control circuit 10.
  • the circuit shown in FIG. 1 can be repeated for each frame of the section mill.
  • a chock 13 can be seen in FIG.
  • An axis 14 is attached to the chock 13.
  • the vertical roller 15 is mounted on the axis 14.
  • a hydraulic motor 16 is accommodated, on the drive shaft of which the sun gear of a planetary gear 17 is seated.
  • the axis 14 is closed by a control cover 18.
  • a pulse generator 19 is also seated on the drive shaft of the hydraulic motor 16. The pulses are received via an optical fiber 20.
  • a stationary light source can be attached to the axis 14, opposite the light guide, and the pulse generator disk can be provided with holes. However, there is also the possibility of throwing light onto the pulse generator disk via the light guide 20 and of guiding the light reflected back from reflection zones of the pulse transmitter disks outward again via the light guide 20.
  • Both the pulse generator 19 and the light guide 20 are already components of the respective angle step transmitter 5, 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Control Of Multiple Motors (AREA)
  • Control Of Eletrric Generators (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Claims (13)

  1. Processus de commande de cadres universels dans un train de laminoirs à entraînement continu, les cylindres verticaux (15) étant traînés pendant l'opération de laminage et la vitesse des cylindres horizontaux entraînés de chaque cadre universel étant soumise à une commande (1),
    caractérisé en ce que
    la vitesse des cylindres verticaux (15) d'au moins un cadre universel est réglée pendant l'opération de laminage au moyen des dispositifs de mise en marche en tant que vérin (2, 3).
  2. Processus selon la revendication 1,
    caractérisé en ce que
    la vitesse des cylindres verticaux (15) d'au moins un cadre universel est réglable (2, 3) avant la passe initiale.
  3. Processsus selon la revendication 1 ou 2,
    caractérisé en ce que
    les deux cylindres verticaux (15) d'un cadre universel sont réglables séparèment (2 et 3).
  4. Processus selon au moins d'une des revendications 1 à 3,
    caractérisé en ce que
    la commande (1) des cylindres horizontaux et la commande (2, 3) des cylindres verticaux de chaque cadre universel sont réciproquement influençables (8) en vue du réglage d'une ligne de limite d'écoulement optimale.
  5. Processus selon au moins l'une des revendications 1 à 4,
    caractérisé en ce que
    les dispositifs de commandes (1, 2, 3, 8) des cadres universels sont réciproquement influençables (10) en vue du réglage optimal des rapports de traction entre les cadres du train.
  6. Processus selon au moins l'une des revendications 1 à 5,
    caractérisé en ce que
    plusieurs ou tous les cadres universels d'un train porteur sont commandés.
  7. Dispositif pour la commande de cadres universels dans un train de laminoirs à profilés à entraînement continu, chaque cadre ayant des cylindres verticaux (15) ajustables par les dispositifs de mise en marche, lesquels sont traînés pendant l'opération de laminage ainsi que des cylindres horizontaux auxquels sont respectivement adjoints des dispositifs de commande (1) pour le réglage de leur vitesse,
    caractérisé en ce que
    un capteur de vitesse (19) est attribué au moins à un des cylindres verticaux (5), au moins à un des cadres universels, que le capteur de vitesse (19), en tant que capteur de la valeur réelle, assure les fonctions d'au moins un circuit de réglage (2 ou 3), que la valeur de consigne de vitesse peut être donnée au circuit de réglage (2 ou 3) à la main, voire à partir d'une mémoire et/ou à partir du circuit de réglage (8) d'un autre cylindre du même cadre et que la sortie du circuit de réglage (2 ou 3) est commutée sur les dispositifs de mise en marche des cylindres verticaux du même cadre, jouant le rôle de vérin du circuit de réglage respectif ( 2 ou 3).
  8. Dispositif selon la revendication 7, sur lequel une commande de vitesse est attribuée aux cylindres verticaux,
    caractérisé en ce que
    le circuit de réglage (2 ou 3) travaille avant la passe initiale sur les entraînements (16) des cylindres verticaux (15).
  9. Dispositif selon la revendication 7 ou 8
    caractérisé en ce que
    le capteur de vitesse (19) est constitué sous la forme d'un générateur tachymètre bridé ou d'un générateur de modulation d'angle numérique relié à un cylindre vertical (15), surtout à un mécanisme de transmission (17) pour les cylindres verticaux (15).
  10. Dispositif selon au moins l'une des revendications 7 à 9
    caractérisé en ce que
    la vitesse des cylindres horizontaux du même cadre universel peut être avancée sur le circuit de réglage (2 ou 3) comme facteur (7) de la vitesse de consigne.
  11. Dispositif selon au moins l'une des revendications 7 à 10,
    caractérisé en ce que
    un réglage de vitesse du cadre (8) est attribué à la commande (2, 3) des cylindres verticaux et à celle (1) des cylindres horizontaux de chaque cadre universel, lequel permet de régler les rapports de vitesses des cylindres horizontaux et des cylindres verticaux (15).
  12. Disposition selon au moins l'une des revendications 7 à 11,
    caractérisé en ce que
    un dispositif de réglage (10) en vue de la régulation de la traction des cylindres est superposé aux circuits de réglage (8) de la vitesse des cadres.
  13. Utilisation du dispositif selon au moins l'une des revendications 8 à 12
    dans le processus selon l'une des revendications 1 à 6.
EP89111074A 1988-06-30 1989-06-19 Commande pour trains de laminoirs à profilés Expired - Lifetime EP0348777B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3821990A DE3821990A1 (de) 1988-06-30 1988-06-30 Regelung fuer profilstrassen
DE3821990 1988-06-30

Publications (3)

Publication Number Publication Date
EP0348777A2 EP0348777A2 (fr) 1990-01-03
EP0348777A3 EP0348777A3 (en) 1990-12-27
EP0348777B1 true EP0348777B1 (fr) 1994-08-24

Family

ID=6357555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111074A Expired - Lifetime EP0348777B1 (fr) 1988-06-30 1989-06-19 Commande pour trains de laminoirs à profilés

Country Status (5)

Country Link
US (1) US5085065A (fr)
EP (1) EP0348777B1 (fr)
JP (1) JP2628520B2 (fr)
AT (1) ATE110308T1 (fr)
DE (2) DE3821990A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439663B1 (fr) * 1990-02-02 1993-12-01 Siemens Aktiengesellschaft Procédé de commande d'un laminoir continu à plusieurs cages
DE484854T1 (de) * 1990-11-05 1994-02-03 Kawasaki Steel Co Verfahren zum Walzen von Doppel-T-Trägern.
DE4229323A1 (de) * 1992-09-02 1994-03-10 Thyssen Edelstahlwerke Ag Drehzahlregelung der Gerüste einer Warmwalzstraße
DE4309986A1 (de) * 1993-03-29 1994-10-06 Schloemann Siemag Ag Verfahren und Vorrichtung zum Walzen eines Walzbandes
DE19644132B4 (de) * 1996-10-23 2005-07-07 Siemens Ag Verfahren zum Optimieren der Bandbreitenverteilung an den Enden eines eine Walzstraße durchlaufenden Bandes
KR100382216B1 (ko) * 1998-04-15 2003-04-26 신닛뽄세이테쯔 카부시키카이샤 Ｈ형 강의 압연 설비용 다기능 압연기 및 ｈ형 강의 압연설비용 다기능 압연기를 사용한 압연방법
WO2012174606A1 (fr) * 2011-06-22 2012-12-27 Ashley Dean Olsson Procédé et appareil de formage de poteaux
CN102989780B (zh) * 2011-09-19 2014-12-24 宝山钢铁股份有限公司 一种立辊轧机节电控制装置及其控制方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188847A (en) * 1961-05-15 1965-06-15 Yawata Iron & Steel Co Method and apparatus for rolling wide flanged beams
DE1284920B (de) * 1962-05-11 1968-12-12 Schloemann Ag Verfahren zum Beseitigen von Druck- oder Zugspannungen im Walzgut zwischen den Walzgeruesten
DE2400411A1 (de) * 1973-01-12 1974-07-18 Nippon Steel Corp Verfahren und vorrichtung zum walzen unsymmetrischer flanschprofile
JPS516311A (ja) * 1974-07-05 1976-01-19 Kajima Corp Asufuarutokeizairyono suichusekoho
JPS6010810B2 (ja) * 1975-08-25 1985-03-20 株式会社日立製作所 圧延機の板厚制御方法
DE2541071C3 (de) * 1975-09-15 1984-07-12 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur Regelung der im Walzgut übertragenen Zugkraft in einer mehrgerüstigen kontinuierlichen Walzstraße
JPS53134757A (en) * 1977-04-28 1978-11-24 Toshiba Corp Apparatus for controlling rolling mill
JPS5918129B2 (ja) * 1977-08-27 1984-04-25 住友金属工業株式会社 形鋼用連続圧延機のためのスタンド間張力制御方法
US4248072A (en) * 1978-07-25 1981-02-03 Aichi Steel Works, Limited Method of and apparatus for producing plate material having uniform width and lengthwise thickness variation
JPS5588913A (en) * 1978-12-27 1980-07-05 Toshiba Corp Tension controller for universal rolling mill
JPS5594704A (en) * 1979-01-12 1980-07-18 Toshiba Corp Rolling method for steel shape with universal mill
JPS55126311A (en) * 1979-03-22 1980-09-30 Nippon Steel Corp Controlling method for shape in universal rolling
JPS60102220A (ja) * 1983-11-07 1985-06-06 Mitsubishi Electric Corp タンデム圧延制御装置
JPS60148608A (ja) * 1984-01-11 1985-08-05 Hitachi Ltd 異周速圧延制御におけるセツトアツプ方法
JPS60244413A (ja) * 1984-05-16 1985-12-04 Mitsubishi Electric Corp 連続圧延機における負荷配分制御方法
DE3521949C2 (de) * 1984-06-25 1994-05-26 Schloemann Siemag Ag Universalwalzgerüst
DE3627630A1 (de) * 1986-08-14 1988-02-18 Schloemann Siemag Ag Einrichtung zum antrieb der vertikalwalzen eines universalgeruestes
US4705969A (en) * 1986-09-19 1987-11-10 National Semiconductor Corporation High accuracy tachometer circuit
GB8624843D0 (en) * 1986-10-16 1986-11-19 Davy Mckee Sheffield Rolling mills

Also Published As

Publication number Publication date
ATE110308T1 (de) 1994-09-15
DE58908225D1 (de) 1994-09-29
DE3821990A1 (de) 1990-01-11
JPH0246906A (ja) 1990-02-16
US5085065A (en) 1992-02-04
EP0348777A3 (en) 1990-12-27
JP2628520B2 (ja) 1997-07-09
EP0348777A2 (fr) 1990-01-03

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