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EP0669172B1 - Walzgerüst - Google Patents

Walzgerüst Download PDF

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Publication number
EP0669172B1
EP0669172B1 EP95100645A EP95100645A EP0669172B1 EP 0669172 B1 EP0669172 B1 EP 0669172B1 EP 95100645 A EP95100645 A EP 95100645A EP 95100645 A EP95100645 A EP 95100645A EP 0669172 B1 EP0669172 B1 EP 0669172B1
Authority
EP
European Patent Office
Prior art keywords
rolling stand
rolls
protective plates
stand
working
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
EP95100645A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0669172A1 (de
Inventor
Bernd Dr. Berger
Peter Reinthal
Manfred Benfer
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.)
Sundwiger Eisenhuette Maschinenfabrik GmbH and Co
Original Assignee
Sundwiger Eisenhuette Maschinenfabrik GmbH and Co
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 Sundwiger Eisenhuette Maschinenfabrik GmbH and Co filed Critical Sundwiger Eisenhuette Maschinenfabrik GmbH and Co
Publication of EP0669172A1 publication Critical patent/EP0669172A1/de
Application granted granted Critical
Publication of EP0669172B1 publication Critical patent/EP0669172B1/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
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates

Definitions

  • the invention relates to a roll stand, in particular multi-roll roll stand, with mudguards, which are arranged in pairs opposite one another above and below the strip processed in the roll stand in the entry and exit area of the roll stand and approximately up to the respective supported by support rollers and / or rollers Work rolls of the roll stand extend into the latter, the lower protective plates in each case being pivotably connected to the lower stand part about an axis arranged parallel to the work rolls.
  • the mudguards used in the roll stands serve to protect the support rolls against damage, which can be caused, for example, by tearing of the strip processed in the roll stand if the strip ends suddenly swing in the direction of the rolls.
  • the lower mudguard also serves as an aid for threading a new strip to be machined or for threading out a finished strip, the mudguards simultaneously ensuring that the work rolls of the roll stand are not damaged.
  • the mudguards in the known roll stand have channels and nozzles via which coolant is applied to the sheets processed in the roll stand.
  • the fenders make it necessary for the fenders to come as close as possible to the work rolls both during threading and unthreading and in the working position of the roll stand. This in turn makes it necessary to make the position of the mudguards relative to the work rolls variable depending on their size.
  • the respective upper fenders are horizontally displaceable, so that they can be pushed into the inlet or outlet area of the mill stand depending on the size of the work rolls.
  • the advantage of this design of the mudguards is that they can safely intercept the vertically deflecting band ends in the event of a band break due to their large-area support.
  • a disadvantage of the known device is that the upper fenders have an unequal distance from the belt when using differently sized work rolls, with large work rolls the distance of the upper fenders to the belt being so great that their protective effect is reduced.
  • Another disadvantage of the known roll stand is that it requires complex lifting means to raise the upper work roll, which is not supported in the rolling operation, when the upper part of the stand is being opened, for example for changing the strip to be processed.
  • the object of the invention is to improve the protective effect of the fenders used in a roll stand of the type mentioned and at the same time to reduce the outlay for the lifting means required for lifting the work roll.
  • the respective upper fenders are pivotally connected to the upper part of the scaffold about an axis which is also arranged parallel to the work rolls, and each have support means on their tip assigned to the work rolls, which support the upper work roll when the upper fenders are pivoted in the direction of the upper part of the frame take.
  • the pivotability of the respective upper fender makes it possible in the roll stand according to the invention to align the respective lower and upper fenders in their pivoting angle so that they have the same distance from the strip at their ends assigned to the work rolls. This setting of the distance between the fenders is independent of the size of the work rolls used in the roll stand.
  • the pivotability of the upper mudguards does not limit the effectiveness of the mudguards, since, for example, in the case of the end of the belt that breaks open, the affected mudguard is brought into contact with the rollers arranged above it and is additionally supported in this way.
  • a high degree of operational safety is always guaranteed regardless of the size of the work rolls used in it.
  • the mudguards are also equipped with support means at their tips assigned to the work rolls, it is possible to use the drives required for pivoting the mudguards at the same time to lift the work roll when the roll stand is open.
  • the additional lifting means for lifting the work roll required in the prior art can be dispensed with.
  • the versatility of the device according to the invention can be further increased in that the mudguards are each divided into an inner part assigned to the work rolls and an outer part, the inner part being pivotable and the outer part being fixed to the respective upper or lower part of the frame connected is.
  • This configuration makes it possible to increase the swivel range and thus the adaptability of the essential parts of the mudguards without reducing operational reliability.
  • the mudguards in the case of the invention can also be designed as cooling plates which have channels and outlet nozzles for a cooling medium to be applied to the strip.
  • the rollers and rollers arranged above the upper mudguards support these mudguards in the event of a malfunction due to a tape tear, it makes sense for the mudguards in question to have cushion pieces on their sides assigned to the supporting rollers and rollers in the area of the rollers or rollers which are directly adjacent to them in such a case, damage to the rollers or rollers is excluded.
  • These upholstery pieces can be designed as bronze inlays.
  • the support means for the upper work roll can be designed as bronze pieces. Damage to the surface of the work rolls coming into contact with the belt by the support means can also be excluded by arranging the support means for the upper work roll on the outer lateral edge of the mudguards.
  • the lower pivotable fenders should rest on the stops which are resiliently resilient in the event of an overload in the working position of the roll stand.
  • the lower mudguards like the corresponding upper mudguards, should be provided with cushion inserts that prevent damage to the support rollers in question in the event of a malfunction.
  • a constant distance between the tips of the mudguards associated with the work rolls and the strip can be achieved in a simple manner in that the respective upper mudguard is in the working position of the roll stand a stop of the associated lower mudguard or the lower part of the scaffold.
  • an upper work roll 1 is supported by intermediate rolls 2,2a, 3,3a, 4 and support rolls 5,5a, 6,6a.
  • the intermediate rolls 2,2a, 3,3a, 4 and the support rolls 5,5a, 6,6a are mounted in an upper part 7 of the stand and are adjustable in height together with the latter.
  • a lower work roll 8 is supported via intermediate rolls 9, 9a, 10, 11, 11a and backup rolls 12, 12a, 13, 13a.
  • the intermediate rolls 9, 9a, 10, 11, 11a and the support rolls 12, 12a, 13, 13a are supported in a lower frame part 14.
  • the height of the intermediate rolls 9, 9a, 10, 11, 11a and the support rolls 12, 12a, 13, 13a can be adjusted within the lower frame part 14 in order to be able to use pairs of work rolls 1.8 of different diameters in the roll stand. In this way it is ensured that the strip B to be processed is always guided in a straight line through the roll stand regardless of the diameter of the work rolls 1.8.
  • a of the roll stand is an upper protective plate 15 designed as a cooling plate, which is divided into an immovable outer part 15 'and a second part 15' 'which can be pivoted by means of hydraulic drives (not shown).
  • the first part 15 'of the fender 15 is firmly attached to the upper frame part 7.
  • a pivot joint 16 is formed for the pivotable part 15 ′′ of the upper fender.
  • Both parts 15 ', 15' 'of the mudguard 15 have channels 17 and nozzles 18, via which a cooling medium can be applied to the strip B processed in the roll stand.
  • support means 19 made of bronze are fastened, via which the work roll 1 is held in the raised position in the open position of the roll stand shown in FIG. 1 .
  • cushion pieces 20, which are also made of bronze are inserted opposite the support roller 5 or intermediate roller 3 in the side of the pivotable mudguard part 15 ′′ assigned to the support rollers.
  • the pivot axis 22 for the inner part 21 "of lower fender 21 is in turn formed on the front edge of the first part 21 ′ assigned to the support roller 12.
  • the pivotable part 21 ′′ of the lower mudguard 21 rests on a stop of the stand lower part 14 which is resiliently resilient in the event of overload, so that its distance from the strip B processed in the roll stand is fixed .
  • the pivotable part 15 ′′ of the mudguard 15 rests on a stop, also not shown, formed on the pivotable part 21 ′′ of the lower mudguard 21 or on the lower frame part 14. In this way, its distance from belt B is also fixed during processing. There is no contact between any of the rolls of the roll stand and the respective pivotable part 15 ′′, 21 ′′ of the mudguards 15, 21.
  • the work rolls 1, 2 are relieved of pressure.
  • the pivotable part 15 ′′ of the upper fender is then pivoted up until the support means 19 attached to it abut the upper work roll 1.
  • the upper mudguard not shown, in the outlet area of the roll stand.
  • the upper frame part 7 is raised, the work roll 1 now resting on the support means 19 of the mudguard 15 ′′ being carried along.
  • the pivotable part 21 '' of the lower fender 21 assigned to the inlet area E is pivoted upwards (position indicated by dashed lines in FIG. 3), so that the lower working shaft 2 is not damaged when the finished strip is threaded out and the new strip to be processed is threaded in becomes.
  • the movable part 21 '' of the lower mudguard 21 is pivoted down until it is on the lower stop of the Scaffold lower part 14 rests.
  • the roll gap which was previously open between the work rolls 1, 2 is then closed.
  • the pivotable part 15 ′′ of the upper fender 15 bears against the stop of the lower fender 21 or the lower frame part 14 assigned to it, so that the upper work roll 1 can again be freely rotated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Metal Rolling (AREA)
EP95100645A 1994-02-28 1995-01-19 Walzgerüst Expired - Lifetime EP0669172B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4406454 1994-02-28
DE4406454A DE4406454C1 (de) 1994-02-28 1994-02-28 Walzgerüst mit lose gelagerten Arbeitswalzen

Publications (2)

Publication Number Publication Date
EP0669172A1 EP0669172A1 (de) 1995-08-30
EP0669172B1 true EP0669172B1 (de) 1997-10-22

Family

ID=6511386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100645A Expired - Lifetime EP0669172B1 (de) 1994-02-28 1995-01-19 Walzgerüst

Country Status (5)

Country Link
US (1) US5558017A (es)
EP (1) EP0669172B1 (es)
JP (1) JP3792744B2 (es)
DE (2) DE4406454C1 (es)
ES (1) ES2107867T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013009695A1 (de) * 2013-06-03 2014-12-04 Sms Siemag Ag Spritzbalkenverstellung für ein Mehr-Rollenwalzwerk

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19752524C2 (de) * 1997-11-27 2000-05-18 Adolf Seide Glättwerk für eine Materialbahn aus thermoplastischem Kunststoff
DE10027866B4 (de) * 2000-06-06 2005-03-24 Keiper Gmbh & Co. Kg Sitzhöheneinsteller-Antrieb für einen Fahrzeugsitz
EP2676744A1 (fr) 2012-06-22 2013-12-25 Siemens VAI Metals Technologies GmbH Dispositif d'arrosage d'une installation de laminage et méthode d'extraction/introduction dudit système hors/dans ladite cage de laminage

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2353288A (en) * 1940-08-03 1944-07-11 Crucible Steel Co America Apparatus for rolling strip metal
DE811831C (de) * 1948-10-02 1951-08-23 Sack Gmbh Maschf Spritzvorrichtung an Walzwerken
GB948165A (en) * 1959-12-03 1964-01-29 Davy & United Eng Co Ltd Improvements in or relating to rolling mills
BE634026A (es) * 1962-06-26
US4039107A (en) * 1975-11-12 1977-08-02 Boley Robert E Roller entry guide having improved guide insert and roller adjustment means
SU576131A1 (ru) * 1976-05-19 1977-10-15 Предприятие П/Я А-7697 Проводковое устройство многовалкового стана
JPS58125311A (ja) * 1982-01-18 1983-07-26 Kobe Steel Ltd 多段圧延機のストリツプガイド装置
JPS58125310A (ja) * 1982-01-18 1983-07-26 Kobe Steel Ltd 多段圧延機のストリツプガイド装置
JPS60221114A (ja) * 1984-03-30 1985-11-05 Kobe Steel Ltd 多段圧延機におけるストリツプガイド
JPS6142407A (ja) * 1984-08-02 1986-02-28 Hitachi Ltd 多段圧延機のロ−ル組替装置
DE3934087C1 (es) * 1989-10-12 1991-02-07 Nordischer Maschinenbau Rud. Baader Gmbh + Co Kg, 2400 Luebeck, De
DE3939124A1 (de) * 1989-11-25 1991-05-29 Sundwiger Eisen Maschinen Vielwalzengeruest mit hydraulischer anstellung
DE4116019C2 (de) * 1991-05-16 1997-01-23 Sundwiger Eisen Maschinen Verfahren und Vorrichtung zum Kühlen eines flächenhaften Gutes, insbesondere eines Metallbandes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013009695A1 (de) * 2013-06-03 2014-12-04 Sms Siemag Ag Spritzbalkenverstellung für ein Mehr-Rollenwalzwerk

Also Published As

Publication number Publication date
US5558017A (en) 1996-09-24
EP0669172A1 (de) 1995-08-30
JPH0833903A (ja) 1996-02-06
DE4406454C1 (de) 1995-08-24
JP3792744B2 (ja) 2006-07-05
DE59500820D1 (de) 1997-11-27
ES2107867T3 (es) 1997-12-01

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