EP0393301B2 - Verfahren und Vorrichtung zum kontinuierlichen Zugrecken von dünnen Bändern, insbesondere von metallischen Bändern - Google Patents

Verfahren und Vorrichtung zum kontinuierlichen Zugrecken von dünnen Bändern, insbesondere von metallischen Bändern Download PDF

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Publication number
EP0393301B2
EP0393301B2 EP90100244A EP90100244A EP0393301B2 EP 0393301 B2 EP0393301 B2 EP 0393301B2 EP 90100244 A EP90100244 A EP 90100244A EP 90100244 A EP90100244 A EP 90100244A EP 0393301 B2 EP0393301 B2 EP 0393301B2
Authority
EP
European Patent Office
Prior art keywords
stretching
rolls
tension
brake
strip
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
EP90100244A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0393301A3 (de
EP0393301A2 (de
EP0393301B1 (de
Inventor
Oskar Dipl.-Ing. Noé
Rolf Dipl.-Ing. Noé
Andreas Dr. mont. Dipl.-Ing. Noé
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.)
BWG Bergwerk und Walzwerk Maschinenbau GmbH
Original Assignee
BWG Bergwerk und Walzwerk Maschinenbau GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6378905&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0393301(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BWG Bergwerk und Walzwerk Maschinenbau GmbH filed Critical BWG Bergwerk und Walzwerk Maschinenbau GmbH
Priority to AT90100244T priority Critical patent/ATE90233T1/de
Publication of EP0393301A2 publication Critical patent/EP0393301A2/de
Publication of EP0393301A3 publication Critical patent/EP0393301A3/de
Application granted granted Critical
Publication of EP0393301B1 publication Critical patent/EP0393301B1/de
Publication of EP0393301B2 publication Critical patent/EP0393301B2/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
    • B21D1/05—Stretching combined with rolling

Definitions

  • the invention relates to a method for the continuous tensile stretching of metallic strips with a strip thickness between 0.05 mm and 0.5 mm, in particular strips of beam, aluminum or similar metals, according to which the respective strip passes through a brake roller set and a pull roller set and between the two roller sets is stretched in the course of its stretching in the plastic region, which corresponds to the yield point or yield point of the strip material or slightly exceeds this yield point.
  • the plastic elongation of the strip in question is obtained from the reduction in strip thickness and strip width. While the reduction in strip thickness is not hindered, the reduction in strip width in the transverse direction is hindered by the friction between the strip and the rollers in question so that transverse tensions build up from the strip edge to the center of the strip and consequently larger plastic deformations occur in the central strip region than in the edge region. Indeed, the reduction in bandwidth in the transverse direction is hindered in particular because one wants to build high stretching trains with as few rollers as possible and consequently uses rollers whose roller jackets are provided with a friction lining made of rubber, plastic or the like.
  • the last role of the brake roller set and the first role of the pull roller set have to transfer the maximum stretch on the belt according to a staggering of the coefficient of friction e ⁇ .
  • the stretching stretches generated are set so that the respective stretching limit or yield point of the band in question is reached between the last brake roller and the first pulling roller and any length of band that can be set is achieved.
  • the resulting longitudinal stresses cause the mentioned transverse stresses, which are dependent on the strip material.
  • the ratio of ⁇ transverse to ⁇ longitudinal the so-called Poisson's coefficient ⁇ , is between 0.25 - 0.3 for metals. If a longitudinal tension is applied to a band, the band is constricted both in the elastic and in the plastic area.
  • a drive device for a device for the continuous stretching of strips and wires which has at least two tensioning sets with tensioning drums, which are each driven by a differential gear from a common drive motor, all differential gears alternatingly across tensioning sets with the same main part of a planetary gear are coupled and a drive motor acts on the external gearboxes, at least one of which is a variable-speed control motor.
  • a second drive motor is required, which is speed-controllable, the speed of which, depending on the desired degree of stretching, can be regulated to a different, lower or higher speed compared to the driving motor.
  • the invention has for its object to provide a method and an apparatus for the continuous tensile stretching of metallic strips with a strip thickness between 0.05 mm and 0.5 mm of the type described in the introduction, according to which the strip transverse changes occurring during plastic stretching are reduced to a minimum and consequently the formation of center bowls and residual voltages distributed unevenly across the bandwidth are almost eliminated.
  • the stretching required for the desired stretching of the belt is thus divided between the brake roller set and the pulling roller set for the elastic stretching on the one hand and the pair of tension stretching rollers for the plastic stretching of the relevant strip on the other hand.
  • the invention is based on the knowledge that only a low stress component is required for the stretching in the plastic region, that is to say to reach and, if necessary, to slightly exceed the yield or yield point of the strip material. With a modulus of elasticity predetermined by the band material, this results in a correspondingly low transverse elongation. This, in turn, results in a relatively even distribution of tension over the bandwidth, so that the center dishes practically no longer occur and band lengths of different lengths are no longer to be feared after band length division. As a result, a flawless product is available even for lithographic purposes.
  • the invention also relates to a train stretching system which is particularly suitable for carrying out the claimed method and has a brake roller set and a train roller set in its basic structure.
  • This tension stretching system is characterized in that a pair of tension rollers is arranged between the brake roller set and the tension stretching roller set, with brake drives controlled by the brake rollers, tension drives controlled by the tension rollers and a speed-controlled stretching drive operating on the tension rollers with the interposition of a superposition gear.
  • the tensioning of the brake roller set, pair of draw rollers and pull roller set can take place in a known manner.
  • one embodiment of the invention provides that the drawing stretching rollers have metallic roller shells, the surface of which is hardened or hard-coated and finely machined. This minimizes the friction between the belt in question and the pair of tensioning rollers so that transverse stresses no longer build up due to frictional influences from the belt edge to the belt center, but rather an essentially uniform tension distribution over the belt width is achieved.
  • the invention preferably provides that the roller shells of the pull rollers made of a metal alloy with a low coefficient of friction such.
  • the tension stretching rollers can preferably be acted upon with a lubricant, for example an oil emulsion, which at the same time prevent loose particles from caking.
  • a lubricant for example an oil emulsion
  • a tension stretching system for the continuous tension stretching of thin metal strips M made in particular of steel, aluminum or the like is shown with a strip thickness between 0.05 mm and 0.5 mm.
  • this pull stretching system has a brake roller set A with brake rollers 1, 2, 3, 4 and a pull roller set B with pull rollers 7, 8, 9, 10. Between the brake roller set A and the tension roller set B, a pair of stretching rollers C with tensioning rollers 5, 6 is arranged. At least the tension stretching rollers 5, 6 have metallic roller jackets 11, the surface of which is hardened or hard-coated and finely machined. In particular, it can be a metal alloy with a low coefficient of friction such as. B.
  • the tension stretching rollers 5, 6 can be acted upon with a lubricant.
  • the diameter of the draw rollers 5, 6 is 1500 times larger than the maximum strip thickness.
  • the brake roller set A and the pull roller set B can basically have two or more brake or pull rollers. The bracing can be done in a known manner.
  • the transverse expansion is a factor 1 10th reduced because the band in the intermediate stretching roller pair C between the brake roller set A and the tension roller set B is only subjected to the stretching stretch required for its stretching in the plastic region, namely about 5% - 25% of the maximum stretching stretch for the plastic stretching, while with the brake roller set and tension roller set 75% - 95% of the maximum stretch, however, are only generated for the elastic stretching of the belt.
  • FIG. 1 An embodiment of a train stretching system is shown in FIG.
  • a tension-controlled stretching drive 14 works on the brake rollers 1, 2, 3, 4 tension-controlled brake drives 12 and on the tension rollers 7, 8, 9, 10 and on the tension stretching rollers 5, 6, with the interposition of a superposition gear 15
  • a speed-controlled main motor 16 operates as a speed master for the traction roller set B.
  • the braking roller set A and the traction roller set B are traction-controlled, while the traction roller pair C is connected via a differential gear and the stretching drive 14 as the tensioning motor the desired one Degree of stretching generated by speed control.
  • plastic stretching takes place.
  • the stretching drive 14 is set with the percentage of the rotational speed of the main motor 16, so that the stretching drive 14 effects a uniform stretching over the entire speed range.
  • the superposition gear 15 consists essentially of a planetary gear and a bevel gear connecting shaft, via which the draw rollers 5, 6 are supported.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Metal Rolling (AREA)
  • Conductive Materials (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
EP90100244A 1989-04-18 1990-01-06 Verfahren und Vorrichtung zum kontinuierlichen Zugrecken von dünnen Bändern, insbesondere von metallischen Bändern Expired - Lifetime EP0393301B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90100244T ATE90233T1 (de) 1989-04-18 1990-01-06 Verfahren und vorrichtung zum kontinuierlichen zugrecken von duennen baendern, insbesondere von metallischen baendern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3912676 1989-04-18
DE3912676A DE3912676A1 (de) 1989-04-18 1989-04-18 Verfahren und vorrichtung zum kontinuierlichen zugrecken von duennen baendern, insbesondere von metallischen baendern

Publications (4)

Publication Number Publication Date
EP0393301A2 EP0393301A2 (de) 1990-10-24
EP0393301A3 EP0393301A3 (de) 1991-03-27
EP0393301B1 EP0393301B1 (de) 1993-06-09
EP0393301B2 true EP0393301B2 (de) 1996-07-24

Family

ID=6378905

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100244A Expired - Lifetime EP0393301B2 (de) 1989-04-18 1990-01-06 Verfahren und Vorrichtung zum kontinuierlichen Zugrecken von dünnen Bändern, insbesondere von metallischen Bändern

Country Status (5)

Country Link
US (1) US5182931A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0393301B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE90233T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA2013824C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE3912676A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4230243C1 (de) * 1992-09-10 1994-01-27 Bwg Bergwerk Walzwerk Rollensatz für die S-förmige Umlenkung zu planierender dünner Metallbänder
DE19509067A1 (de) * 1995-03-14 1996-09-19 Bwg Bergwerk Walzwerk Verfahren zum kontinuierlichen Richten von dünnen Metallbändern, insbesondere von Aluminium- und Edelstahl-Bändern mit Banddicken von 0,1 mm bis 0,5 mm, und Richtanlage zur Durchführung des Verfahrens
DE19645599A1 (de) * 1996-11-06 1998-05-07 Kampf Gmbh & Co Maschf Vorrichtung zum Zugrecken von dünnen Metallbändern
DE19843899C1 (de) * 1998-09-24 2000-05-04 Bwg Bergwerk Walzwerk Verfahren und Vorrichtung zur Planheitsmessung von Bändern
DE10041563A1 (de) * 2000-08-24 2002-03-07 Sms Demag Ag Verfahren und Vorrichtung zum Streckrichten von Kaltband sowie Regelung des Streckgrades
DE10114883C1 (de) 2001-03-26 2002-10-31 Bwg Bergwerk Walzwerk Zugreckanlage für Stahl- und Metallbänder
DE10121981C1 (de) * 2001-05-05 2002-12-12 Bwg Bergwerk Walzwerk Bandbehandlungsanlage zum Richten eines Metallbandes
US6668610B2 (en) 2001-12-27 2003-12-30 Alcan International Limited Method for continuous tension leveling of aluminum strip
DE10323811A1 (de) 2003-05-23 2005-01-13 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren zum kontinuierlichen Zugrecken von metallischen Bändern und Zugreckanlage
DE102004048658A1 (de) * 2004-10-06 2006-04-20 Sms Demag Ag Vorrichtung zum kontinuierlichen Zugrecken eines Metallbandes und Verfahren zum Betreiben einer solchen Vorrichtung
NO325865B1 (no) * 2007-01-24 2008-08-04 Nli Products As Frontstotte til strekkmaskin, samt fremgangsmate for heving og senking av frontstotten
US9309714B2 (en) 2007-11-13 2016-04-12 Guardian Ig, Llc Rotating spacer applicator for window assembly
US8967219B2 (en) 2010-06-10 2015-03-03 Guardian Ig, Llc Window spacer applicator
CN104727705B (zh) * 2007-11-13 2017-06-20 监护人Ig有限责任公司 具有侧壁的箱式间隔装置
DE102008024013B3 (de) * 2008-05-16 2009-08-20 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren und Vorrichtung zum Richten eines Metallbandes
WO2011008860A1 (en) * 2009-07-14 2011-01-20 Infinite Edge Technologies, Llc Stretched strips for spacer and sealed unit
US9228389B2 (en) 2010-12-17 2016-01-05 Guardian Ig, Llc Triple pane window spacer, window assembly and methods for manufacturing same
US9689196B2 (en) 2012-10-22 2017-06-27 Guardian Ig, Llc Assembly equipment line and method for windows
US9260907B2 (en) 2012-10-22 2016-02-16 Guardian Ig, Llc Triple pane window spacer having a sunken intermediate pane
DE102016121448B4 (de) * 2016-11-09 2018-08-30 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren und Vorrichtung zum Streckbiegerichten eines Metallbandes

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2350503B1 (de) * 1973-10-08 1975-01-23 Bwg Bergwerk Walzwerk Verfahren und Vorrichtung zum Entzundern und Planieren von Blechbaendern
DE2439260B1 (de) * 1974-08-16 1975-12-18 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg Spannvorrichtung für kontinuierlich durchlaufende Bänder
DE2625414C2 (de) * 1976-06-05 1985-10-10 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg Spannvorrichtung für kontinuierlich durchlaufende Bänder, insbesondere Metallbänder
DE2818411A1 (de) * 1978-04-27 1979-11-08 Thyssen Industrie Antriebseinrichtung fuer eine vorrichtung zum kontinuierlichen recken von baendern und draehten
DE3026129A1 (de) * 1980-07-10 1982-02-04 Erwin Kampf Gmbh & Co Maschinenfabrik, 5276 Wiehl Metallbandreckanlage
DE3312181C2 (de) * 1983-04-02 1985-11-14 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg Streckbiegevorrichtung zum Streckbiegerichten von dünnen Metallbändern und -folien
GB2174027B (en) * 1985-04-20 1988-07-13 Bwg Bergwerk Walzwerk Process and equipment for continuous flattening of particularly thin metal strip
DE3525343C1 (de) * 1985-04-20 1986-12-11 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg Verfahren und Vorrichtung zum Kontinuierlichen Richten von Metallbändern
FR2608946A1 (fr) * 1986-12-31 1988-07-01 Clecim Sa Cylindres actifs de cage de planage
US4861549A (en) * 1988-02-18 1989-08-29 National Forge Company Roller caster shell steel

Also Published As

Publication number Publication date
CA2013824C (en) 1999-08-31
EP0393301A3 (de) 1991-03-27
DE3912676A1 (de) 1990-10-25
DE59001660D1 (de) 1993-07-15
CA2013824A1 (en) 1990-10-18
ATE90233T1 (de) 1993-06-15
DE3912676C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-12-24
EP0393301A2 (de) 1990-10-24
EP0393301B1 (de) 1993-06-09
US5182931A (en) 1993-02-02

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