EP0371280A2 - Procédé de dressage de tÔles, bandes, plaques, profilés, poutres etc. - Google Patents

Procédé de dressage de tÔles, bandes, plaques, profilés, poutres etc. Download PDF

Info

Publication number
EP0371280A2
EP0371280A2 EP89120439A EP89120439A EP0371280A2 EP 0371280 A2 EP0371280 A2 EP 0371280A2 EP 89120439 A EP89120439 A EP 89120439A EP 89120439 A EP89120439 A EP 89120439A EP 0371280 A2 EP0371280 A2 EP 0371280A2
Authority
EP
European Patent Office
Prior art keywords
straightening
roller
measured
machine
correction
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
Application number
EP89120439A
Other languages
German (de)
English (en)
Other versions
EP0371280B1 (fr
EP0371280A3 (fr
Inventor
Gerd Dr. Beisemann
Klaus Pietsch
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
Priority to AT89120439T priority Critical patent/ATE90232T1/de
Publication of EP0371280A2 publication Critical patent/EP0371280A2/fr
Publication of EP0371280A3 publication Critical patent/EP0371280A3/fr
Application granted granted Critical
Publication of EP0371280B1 publication Critical patent/EP0371280B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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

Definitions

  • the invention relates to a method for straightening sheets, strips, sheets, profiles, beams, etc., the straightening forces being measured by at least one of the straightening rollers of a roller straightening machine and the straightening roller positions being adjusted as a function of the measured values.
  • Deviations in the properties of the leveling material entering the leveling machine usually lead to undesirable leveling results.
  • a change in strength causes one Changed discharge curvature of the leveling material that runs out of the leveling machine.
  • changed straightening properties can also be determined with changed properties of the straightening material, which in turn lead to changed spring-back values and thus to changed effective positions, it can be seen that the stability of the straightening result in the event of scatter in the product parameters is largely determined by the spring-back behavior of the straightening machine. This corresponds to previous practical experience. In the case of high-strength, thick sheets, for example, the spring deflection can even become the dominant component of effective roll adjustment.
  • the machine rigidity is also used for an approximate description of the suspension behavior.
  • a stiffness matrix is particularly suitable for the linearized description of the dependencies between individual roller forces and individual suspensions.
  • the elements of the matrix can also depend on the respective operating point. Calculations have shown that there is a connection between the property changes of the straightening material entering the straightening machine (yield point) and the straightening result (curvature of the outgoing straightening material). Different machine stiffnesses have very different courses. Similar relationships can also be demonstrated for the parameters that depend on the thickness and width of the material to be straightened. In terms of process technology, it is fundamentally advantageous for the scattering to have as little effect as possible on the bending process, ie as far as possible flat functions.
  • the process is determined by the vertical positions of the straightening rollers, which are selected depending on the desired straightening result and the properties of the straightening material.
  • the upper and lower straightening rollers can be adjusted individually or together.
  • hydraulic piston-cylinder units are also used as adjusting devices.
  • the roller straightening gap is set and corrected with the aid of control wedges which are connected to pressure cylinders and spindle drives as displacement devices.
  • the control wedges are arranged running in the longitudinal direction of the straightening rollers and are therefore operatively connected to both bearings of the straightening roller in the same way.
  • the object of the invention is to use suitable measures to detect fluctuations and variations in the properties of the target material without a time delay and to eliminate their effects.
  • each straightening force acting perpendicularly on the axes of rotation of the straightening rollers and / or the roller bearings and / or on the frame of the straightening machine is measured for itself, and in that the straightening rollers are automatically readjusted in the range of the varying pressure forces that occur as a function of these measured values will.
  • each vertical force acting on the axes of rotation of the straightening rollers and / or the roller bearings and / or on the frame of the straightening machine is measured for itself, each increased load occurring during operation of the rolling mill can very advantageously, in particular also every off-center increased Load on the straightening roller is measured directly and corrected without delay.
  • the practically instantaneous correction of the straightening roller position depending on the measured values is achieved in particular by the automatic adjustment of the straightening rollers.
  • the individual forces acting perpendicular to the axes of rotation of the straightening rollers and / or roller bearings and / or on the frame of the straightening machine can be determined very easily in a manner known per se by direct or indirect measurement, the measurement of the straightening forces on the frame using the elastic deformations. In most cases, measuring devices of only one type known per se are sufficient for this.
  • a control device known per se which, depending on the forces measured with the measuring devices and / or depending on the deformation paths measured using the measuring devices and possibly depending on the properties (yield strength, width, thickness ..) of the straightening material-dependent correction of the straightening roller position which can be adjusted during straightening, so that the parallel displacement of the straightening roller axes caused by this correction runs in the opposite direction in the direction determined by the elastic deformations of the machine.
  • This very advantageously keeps the roller straightening machine free from fluctuations and scatter in the properties of the straightening good.
  • the adjustment or correction of the straightening roller position is the same as that due to the elastic Deformations occurred after the straightening rollers were shifted.
  • a complete compensation of the influences, such as elastic deformations, starting from the leveling material and acting on the leveling machine, in particular on the leveling rollers, is achieved, which causes the leveling machine to behave rigidly, almost infinitely stiffly, without placing high demands on the actual machine rigidity have to.
  • the adjustment or correction of the straightening roller position is greater than the displacement of the respective straightening roller due to the elastic deformations.
  • This corresponds to an overcompensation of the straightening machine, the curve of which, as the graphic diagram shows, runs completely flat, ie flat.
  • An overcompensation of the elastic deformations which is suitably selected depending on the operating point of the straightening machine, allows a material influence of the straightening material on the straightening result for a wide range (e.g. the strength) to be suppressed practically completely and thereby to achieve a previously unattained, stable behavior of the work process.
  • the adjustment or correction of the straightening roller position can also be smaller than the displacement of the respective straightening roller due to the elastic deformations. This corresponds to a partial compensation of the influences of the leveling material on the leveling machine, which can be advantageous if the number of straightening rollers adjustable under load is small compared to the total number of rollers.
  • the correction values of the straightening roller positions can be very easily from case to case arithmetically determined with the help of PC computers and, depending on the calculated values, the straightening machine can either be driven by force or position-controlled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Laminated Bodies (AREA)
  • Wire Processing (AREA)
EP89120439A 1988-11-26 1989-11-04 Procédé de dressage de tôles, bandes, plaques, profilés, poutres etc. Expired - Lifetime EP0371280B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89120439T ATE90232T1 (de) 1988-11-26 1989-11-04 Verfahren zum richten von blechen, baendern, tafeln, profilen, traegern etc.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3840016 1988-11-26
DE3840016A DE3840016A1 (de) 1988-11-26 1988-11-26 Verfahren zum richten von blechen, baendern, tafeln, profilen, traegern etc.

Publications (3)

Publication Number Publication Date
EP0371280A2 true EP0371280A2 (fr) 1990-06-06
EP0371280A3 EP0371280A3 (fr) 1991-05-02
EP0371280B1 EP0371280B1 (fr) 1993-06-09

Family

ID=6367981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120439A Expired - Lifetime EP0371280B1 (fr) 1988-11-26 1989-11-04 Procédé de dressage de tôles, bandes, plaques, profilés, poutres etc.

Country Status (5)

Country Link
US (1) US5115653A (fr)
EP (1) EP0371280B1 (fr)
JP (1) JPH02182320A (fr)
AT (1) ATE90232T1 (fr)
DE (2) DE3840016A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19653569C2 (de) * 1996-12-20 1999-07-22 Witels App Masch Albert Gmbh Verfahren zur automatisierten Führung eines Richtprozesses
EP1038602B1 (fr) * 1999-03-26 2002-05-22 SMS Demag AG Méthode et dispositif pour cintrer des profiles
DE102004041732A1 (de) 2004-08-28 2006-03-02 Sms Demag Ag Verfahren zum Richten eines Metallbandes und Richtmaschine
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
DE102006009173B4 (de) * 2006-02-24 2015-02-05 Kocks Technik Gmbh & Co. Kg Verfahren zum Ermitteln der Walzkraft in einem Walzgerüst und Walzgerüst
CN101733308B (zh) * 2008-11-17 2012-02-01 鞍钢股份有限公司 一种热矫直机入口及出口矫直力保护方法
CN102489551B (zh) * 2011-11-22 2013-08-28 南京钢铁股份有限公司 中厚板轧制矫直机松卡缸压力自适应控制方法及控制结构
CN102527774B (zh) * 2012-01-19 2014-07-09 太原科技大学 一种辊式矫直机压下工艺参数动态调整方法
EP3184191B1 (fr) * 2015-12-21 2020-02-05 Komax Holding AG Dispositif d'alignement des conducteurs
AT522234B1 (de) * 2019-02-28 2022-05-15 Evg Entwicklungs U Verwertungs Ges M B H Verfahren und Vorrichtung zum Geraderichten von Draht oder Bandmaterial

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3308616A1 (de) * 1983-03-11 1984-09-13 SMS Schloemann-Siemag AG, 4000 Düsseldorf Verfahren und vorrichtung zum richten von blech
EP0182062A2 (fr) * 1984-10-16 1986-05-28 Fr.W. SCHNUTZ GMBH & CO. Réglage du cylindre d'appui pour machines à dresser

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1210674A (en) * 1967-11-21 1970-10-28 Davy & United Eng Co Ltd Apparatus for processing sheet and strip material
US3566638A (en) * 1968-05-29 1971-03-02 Textron Inc Screwdown system for a rolling mill
DE1934496A1 (de) * 1969-07-08 1971-01-21 Schloemann Ag Walzenrichtmaschine fuer Blech und Band
US4152913A (en) * 1976-12-21 1979-05-08 Horst Zerhoch Vorrichtungs und maschinenbau GmbH & Co. KG Straightening machine for straightening sheet metal and flat materials
US4454738A (en) * 1981-06-29 1984-06-19 The Paxson Machine Company Roller leveler and method of operating same
JPS6061108A (ja) * 1983-09-13 1985-04-08 Mitsubishi Electric Corp 連続圧延機の負荷配分制御方法
DE3430034A1 (de) * 1984-08-16 1986-02-27 Mannesmann AG, 4000 Düsseldorf Planheitsregelung an bandwalzgeruesten
US4730472A (en) * 1986-07-10 1988-03-15 United Engineering, Inc. Hydraulic contouring means for a hot or cold leveler machine
JPH0626723B2 (ja) * 1986-09-24 1994-04-13 三菱電機株式会社 板材の形状制御方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3308616A1 (de) * 1983-03-11 1984-09-13 SMS Schloemann-Siemag AG, 4000 Düsseldorf Verfahren und vorrichtung zum richten von blech
EP0182062A2 (fr) * 1984-10-16 1986-05-28 Fr.W. SCHNUTZ GMBH & CO. Réglage du cylindre d'appui pour machines à dresser

Also Published As

Publication number Publication date
US5115653A (en) 1992-05-26
EP0371280B1 (fr) 1993-06-09
DE58904631D1 (de) 1993-07-15
EP0371280A3 (fr) 1991-05-02
ATE90232T1 (de) 1993-06-15
DE3840016A1 (de) 1990-05-31
JPH02182320A (ja) 1990-07-17

Similar Documents

Publication Publication Date Title
DE69404527T2 (de) Walzwerk und Verfahren
EP1074317B1 (fr) Procédé pour le laminage flexible d'une bande métallique
DE69514010T2 (de) Verfahren und Vorrichtung zum Richten eines dünnen Metallbandes
DE2543738A1 (de) Verfahren und kalander zur herstellung von folien
EP0371280B1 (fr) Procédé de dressage de tôles, bandes, plaques, profilés, poutres etc.
EP0551658B2 (fr) Méthode pour le dressage des tôles
EP0035009B1 (fr) Dispositif pour soutenir le cylindre de travail d'une machine à cintrer ou dresser les tôles
DE69101312T2 (de) Rollenrichtmaschine.
DE69102689T2 (de) Walzenbiegemaschine.
DE2253524A1 (de) Kombinierte dickenregelungs- und balligkeitsregelungsautomatik fuer ein walzwerk oder walzgeruest system und verfahren
DE1427888B2 (de) Einrichtung zur Dickenverringerung von Bandmaterial
DE1602197A1 (de) Walzwerk oder Walzgeruest zum Walzen mit konstanter Dicke
DE3805364A1 (de) Fertigwalzverfahren fuer profile
DE4216686A1 (de) Verfahren und Richtmaschine zum Richten von Blechen und Bändern
DE2341768A1 (de) Walzgeruest
EP0602492B1 (fr) Laminoir à plusieurs cylindres
DE69502447T2 (de) Vorrichtung zur Ausgleichung der Längenänderungen von mindestens zwei Drähten oder Stäben in einer Zieheinrichtung
EP0721811A1 (fr) Procédé pour le réglage du profil d'emprise
EP1080800B1 (fr) Procédé pour le laminage flexible d'une bande métallique
DE2836595A1 (de) Verfahren zur regelung der dicke eines flachen produkts waehrend des walzens und vorrichtung zur durchfuehrung des verfahrens
AT399175B (de) Kalander zur oberflächenbearbeitung von materialbahnen
DE29980239U1 (de) Walzwerk mit zweidimensional gesteuerter Walzendurchbiegung
DE29780451U1 (de) Hochgenaues Walzwerk mit zweidimensionaler Biegungssteuerung
DE69612225T2 (de) Verfahren und Vorrichtung zum Richten von flachen metallischen Produkten sowie Blechen, Metallbanden
EP0181474B1 (fr) Cage de laminoir à six cylindres

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

PUAF Information related to the publication of a search report (a3 document) modified or deleted

Free format text: ORIGINAL CODE: 0009199SEPU

17P Request for examination filed

Effective date: 19891117

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE ES FR GB IT

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE ES FR GB IT

D17D Deferred search report published (deleted)
PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE ES FR GB IT

RHK1 Main classification (correction)

Ipc: B21D 1/02

17Q First examination report despatched

Effective date: 19920514

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19930609

Ref country code: GB

Effective date: 19930609

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19930609

Ref country code: FR

Effective date: 19930609

REF Corresponds to:

Ref document number: 90232

Country of ref document: AT

Date of ref document: 19930615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 58904631

Country of ref document: DE

Date of ref document: 19930715

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19931104

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19930609

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970121

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980801