EP0570770B1 - Verfahren zum Richten von Blechen und Bändern - Google Patents

Verfahren zum Richten von Blechen und Bändern Download PDF

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Publication number
EP0570770B1
EP0570770B1 EP93107311A EP93107311A EP0570770B1 EP 0570770 B1 EP0570770 B1 EP 0570770B1 EP 93107311 A EP93107311 A EP 93107311A EP 93107311 A EP93107311 A EP 93107311A EP 0570770 B1 EP0570770 B1 EP 0570770B1
Authority
EP
European Patent Office
Prior art keywords
straightening
regulated
forces
machine
levelling
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
EP93107311A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0570770A1 (de
Inventor
Willi Benz
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6459336&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0570770(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0570770A1 publication Critical patent/EP0570770A1/de
Application granted granted Critical
Publication of EP0570770B1 publication Critical patent/EP0570770B1/de
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
    • 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

Definitions

  • a method of this type has become known from US-A-4,730,472 and makes it possible to preset the support rollers of straightening machines in such a way that, taking into account the deflection of the crossbeams under the straightening force, the straightening roll deflection is compensated and the straightening rolls are therefore straight when straightening.
  • the actuating cylinders acting on the crossbeam for this purpose are position-controlled, i.e. the forces occurring at the individual support points are completely ignored. It is only ensured that the cylinders ultimately return to their preset position or position even when load peaks occur.
  • EP-A-0 182 062 which there act on the straightening rollers indirectly above the complementary rollers serving as supports.
  • the invention has for its object to provide a method of the type mentioned with which the operation of the straightening machine can be improved, in particular the straightening gap can be maintained even more precisely.
  • This object is achieved in that the sheet width and sheet position with respect to the machine center and the inlet and outlet side left and right of the machine center total forces acting on each adjusting cylinder are measured, from which and taking into account the crossbeam deflection, a calculator the percentage of Individual forces are calculated, and the individual forces that change depending on the load are then calculated according to the measured cylinder forces and the calculated percentage distribution are regulated.
  • a variable regulation of the straightening gap under load is thus achieved as a function of the forces actually occurring during straightening, these forces, which counteract the forces widening the straightening gap, being set in accordance with the calculated percentages; a constant straightening gap can be maintained in this way.
  • the force of each of the four positioning cylinders which can be different for an eccentric sheet run and therefore an eccentric straightening force for each positioning cylinder, are known, the equilibrium of forces and the corresponding deformation equations as well as the condition that the roller mills have no deflection at outer support points and only the deflection of the crossbeams is compensated for, the individual forces required between the support points to compensate for the crossbeam deflection.
  • the outermost individual forces acting symmetrically to the center of the machine are preferably set automatically due to the regulated straightening gap and only the internal individual forces are regulated. These external individual forces correspond to fixed stops.
  • a control deviation of the regulated individual forces is absorbed.
  • the differential force from the straightening force and the weight force must not exceed the balancing force.
  • Adjusting wedges 8 are mounted on the lower roller mill 7, each of which can be displaced by a pressure medium cylinder 9.
  • a bearing bracket 11 for lower straightening rollers 12 and supporting rollers 13 associated therewith is supported on each wedge; webs 14 are arranged between the support rollers 13.
  • several upper straightening rollers 15 are arranged by support rollers arranged between webs 16 17 supported on their bales.
  • the upper straightening and support rollers 15, 17 are mounted on a bearing bracket 18.
  • Each of the adjacent bearing supports 18 is supported on a wedge 21, the other side of which rests on the upper roller mill 6.
  • the adjusting wedges 21 can be displaced by one pressure medium cylinder 22 each.
  • the upper and lower straightening rollers 15, 12 are individually driven and connected to a drive (not shown) via cardan shafts 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Laminated Bodies (AREA)
EP93107311A 1992-05-21 1993-05-05 Verfahren zum Richten von Blechen und Bändern Expired - Lifetime EP0570770B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4216686A DE4216686A1 (de) 1992-05-21 1992-05-21 Verfahren und Richtmaschine zum Richten von Blechen und Bändern
DE4216686 1992-05-21

Publications (2)

Publication Number Publication Date
EP0570770A1 EP0570770A1 (de) 1993-11-24
EP0570770B1 true EP0570770B1 (de) 1997-07-30

Family

ID=6459336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93107311A Expired - Lifetime EP0570770B1 (de) 1992-05-21 1993-05-05 Verfahren zum Richten von Blechen und Bändern

Country Status (4)

Country Link
EP (1) EP0570770B1 (es)
AT (1) ATE156046T1 (es)
DE (2) DE4216686A1 (es)
ES (1) ES2106222T3 (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9126250B2 (en) 2009-09-09 2015-09-08 Siemens Vai Metals Technologies Sas Leveling machine with multiple rollers
WO2019076886A1 (de) 2017-10-16 2019-04-25 Schuler Pressen Gmbh Verfahren, vorrichtung und computerprogrammprodukt zum einstellen der biegung zumindest einer richtwalze einer walzenrichtmaschine

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5461895A (en) * 1993-12-09 1995-10-31 Danieli United, Inc. High capacity hydraulic leveller
FR2718661B1 (fr) * 1994-04-15 1996-07-12 Clecim Sa Installation de planage d'une bande métallique.
FR2732912A1 (fr) * 1995-04-14 1996-10-18 Clecim Sa Planeuse a rouleaux imbriques
FR2732913B1 (fr) * 1995-04-14 1999-06-11 Clecim Sa Planeuse a rouleaux imbriques et procede de mise en oeuvre d'une telle planeuse
FR2739578B1 (fr) * 1995-10-06 1998-01-02 Clecim Sa Planeuse a cylindres paralleles
FR2860738B1 (fr) * 2003-10-13 2006-02-03 Vai Clecim Procede d'augmentation de la precision du controle de la trajectoire du produit dans une machine a planer a rouleaux imbriques et installation de planage permettant la mise en oeuvre du procede.
DE102004041732A1 (de) 2004-08-28 2006-03-02 Sms Demag Ag Verfahren zum Richten eines Metallbandes und Richtmaschine
CN104457670B (zh) * 2014-12-14 2017-08-01 天津博信汽车零部件有限公司 一种半自动坐垫间隙检测设备
CN104942048B (zh) * 2015-06-30 2017-04-19 中国二十冶集团有限公司 辊式冷矫直机上斜锲的拆卸方法
DE102021101054A1 (de) 2021-01-19 2022-07-21 Kohler Maschinenbau Gmbh Richtmaschine zum Richten von Metallbändern oder flächigen Metallteilen sowie Verfahren zum Betreiben einer solchen
CN114505406B (zh) * 2022-02-15 2024-04-30 中山市钜沣精密机械制造有限公司 一种金属板材整平机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2824217A1 (de) * 1978-06-02 1979-12-06 Schloemann Siemag Ag Richtmaschine fuer bleche und baender
AT365485B (de) * 1980-02-21 1982-01-25 Voest Alpine Ag Vorrichtung zum abstuetzen einer arbeitswalze einer blechbiege- oder -richtmaschine
US4454738A (en) * 1981-06-29 1984-06-19 The Paxson Machine Company Roller leveler and method of operating same
DE3437777A1 (de) * 1984-10-16 1986-04-24 Fr. W. Schnutz GmbH & Co, 5900 Siegen Stuetzwalzenverstellung fuer richtmaschinen
US4730472A (en) * 1986-07-10 1988-03-15 United Engineering, Inc. Hydraulic contouring means for a hot or cold leveler machine
DE3700555A1 (de) * 1987-01-10 1988-07-21 Schloemann Siemag Ag Richtmaschine fuer bleche und baender

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9126250B2 (en) 2009-09-09 2015-09-08 Siemens Vai Metals Technologies Sas Leveling machine with multiple rollers
WO2019076886A1 (de) 2017-10-16 2019-04-25 Schuler Pressen Gmbh Verfahren, vorrichtung und computerprogrammprodukt zum einstellen der biegung zumindest einer richtwalze einer walzenrichtmaschine
DE102017124027B4 (de) * 2017-10-16 2021-06-10 Schuler Pressen Gmbh Verfahren, Vorrichtung und Computerprogrammprodukt zum Einstellen der Biegung zumindest einer Richtwalze einer Walzenrichtmaschine

Also Published As

Publication number Publication date
EP0570770A1 (de) 1993-11-24
DE4216686A1 (de) 1993-11-25
DE59306992D1 (de) 1997-09-04
ATE156046T1 (de) 1997-08-15
ES2106222T3 (es) 1997-11-01

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