EP0118812B1 - Mehrwalzengerüst - Google Patents

Mehrwalzengerüst Download PDF

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Publication number
EP0118812B1
EP0118812B1 EP84101855A EP84101855A EP0118812B1 EP 0118812 B1 EP0118812 B1 EP 0118812B1 EP 84101855 A EP84101855 A EP 84101855A EP 84101855 A EP84101855 A EP 84101855A EP 0118812 B1 EP0118812 B1 EP 0118812B1
Authority
EP
European Patent Office
Prior art keywords
roll
levers
rolls
lever
stand according
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
EP84101855A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0118812A3 (en
EP0118812A2 (de
Inventor
Wilfried Bald
Hans Römmen
Erich Stoy
Hans Friedrich Heisterkamp
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
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 filed Critical SMS Schloemann Siemag AG
Publication of EP0118812A2 publication Critical patent/EP0118812A2/de
Publication of EP0118812A3 publication Critical patent/EP0118812A3/de
Application granted granted Critical
Publication of EP0118812B1 publication Critical patent/EP0118812B1/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
    • 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
    • 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
    • B21B13/145—Lateral support devices for rolls acting mainly in a direction parallel to the movement of the product

Definitions

  • the invention relates to a multi-roll stand with two driven support rolls and work rolls entrained by them by friction drive, which are shifted for their horizontal support from the vertical axis plane of the support rolls in the rolling direction and are supported in the direction of the displacement by support rolls supported on their bales and support rolls mounted on support bridges .
  • Multi-roll stands of this type are already known.
  • multi-roll stands of this type are already part of the prior art, which are equipped with bending devices, via which the work rolls using a lateral support system, predominantly horizontally, one Curvature of the entire bale can be forced.
  • the horizontal curvature, but also the vertical component of the curvature of the roll barrel resulting from the center offset thus influences the roll gap profile positively or negatively, and thereby the height of the roll gap can be changed over the width of the roll.
  • This can result in a pressure distribution that not only aims to achieve a rectangular rolling stock cross-section, but also achieves flat surfaces, that is to say allows for a quick and precise compensation of edge and center shafts during rolling.
  • this work roll interacts with the associated backup roll by an additional intermediate roll. It is also provided here that the work roll arranged offset from the vertical axis plane has a smaller diameter than the work roll lying in the vertical axis plane and the additional back-up roll assigned to it, also in the vertical axis plane.
  • the one work roll is therefore considerably larger than in the multi-roll stands according to DE-B-17 77 054 and DE-B-25 22 213, where both work rolls are only bent horizontally and the vertical component of the curvature resulting from their center offset to the vertical plane also influences the roll gap profile.
  • the invention has for its object to provide a generic multi-roll stand of the type known from DE-B-17 77 054 and DE-B-25 22 213, in which it is possible in a simple and safe manner, not just one but rather to influence at least one of the two work rolls in a simple and safe manner in such a way that a spatial curvature in the direction of the two main axes is achieved and different curvature characters can also be combined with one another.
  • An important development feature of the invention - according to claim 2 - is that at least the support rollers and / or the intermediate roller to one of the work rollers can be acted upon by horizontal bending devices.
  • a further development of a multi-roll stand according to the invention is achieved according to claim 3 in that between the Installation pieces of the work rolls and the mutually facing head pieces of the respectively interacting, two levers over the maximum swivel ranges of the levers provide a positive engagement with play.
  • the head pieces arranged at the free ends of the levers on the inlet side are held by joints with axes parallel to the roller axes.
  • the head pieces of the levers on the inlet side act as coupling links, with the aid of which the change in distance between the lever on the inlet side and the lever on the outlet side caused by the arc-shaped movement is compensated for while maintaining the form fit between the head pieces and the chocks.
  • the bearings of the inlet-side levers can be acted upon by a horizontal adjusting device, while according to claim 6 the two levers arranged on the inlet side also have a common bearing axis.
  • the work roll chocks are provided on opposite longitudinal sides with shoulders, which engage in claw-like holders on the head pieces of the two cooperating levers.
  • the vertical bending cylinders and / or the horizontal bending devices can be influenced by pressure control elements which not only allow a freely selectable intervention in the bending shape character of at least one work roll, but are also connected to superordinate flatness control loops.
  • the work rolls clamped on the one hand between the support rolls and on the other hand the elastically and / or plastically embedded rolling stock located in the roll gap can thereby be bent positively or negatively within the framework of load redistribution, with the aim of planning a rectangular rolling stock cross section even under changing conditions of the rolling process To get surfaces.
  • the handlebar-like guidance of the chocks supporting the work rolls by the two interacting levers also allows the required inclination of the vertical adjustment movement from the vertical, tangential to the direction of the two supports, to be carried out in a simple manner, without a position adjustment of the side support being necessary during vertical adjustment becomes.
  • At least the intermediate roller assigned to the work roll which can be acted upon by the horizontal bending device is held displaceably in the lever mounted on the outlet side via guide links.
  • Fig. 1 is a vertical section parallel to the rolling direction shows a multi-roll stand, which has two roll stands 1 in the usual way, of which only one can be seen and in the windows 2 two driven support rollers 3 and 4 mounted on their chocks 5 and 6 will.
  • the chocks 5 and 6 support rollers 3 and 4 work with balancing cylinders 7 and 9 or 8 and 10, which in Sit in the roll stands 1 in the usual way.
  • a holding block 11 is arranged in the inlet side of each roller stand 1, while on the outlet side there is a cross bar between the two roller stands 1 above and below the roller plane, which forms so-called support bridges 12 and 13.
  • two levers 15 and 16 are mounted on the inlet side, in each case about a common, horizontal axis 14, which act as rockers and are in actuating connection with one another by a vertical bending cylinder 17.
  • a lever 19 is pivotally mounted on the support bridge 12 about a horizontal axis 18, while a corresponding lever 21 is pivotably suspended on the support bridge 13, likewise about a horizontal axis 20.
  • the two levers 19 and 21 are effective as swing un stand with; other by vertical bending cylinder 22 in connection, as can be clearly seen in Fig. 2.
  • the facing head pieces 23 and 24 of the two upper levers 15 and 19 each serve to hold the chocks 25 for an upper work roll 26, while the corresponding head pieces 27 and 28 of the two lower levers 16 and 21 together form a holder for the chocks 29 of a lower one Form work roll 30.
  • each of the chocks 25 and 29 engages in a claw-like holder 35 on the head pieces 23 and 27 of the lever 15 and 16, while the opposite shoulder 34 with a corresponding claw-like holder 36 of the head piece 24 on the lever 19 or 21 enters into holding engagement, as can be seen particularly clearly in FIG. 3.
  • the stops 40 and 41 are important for the simple and rapid roll change, because, together with the vertical bending cylinders 17 and 22, they enable the work rolls 26 and 30 to be aligned in the multi-roll stand, which enable exact extension and retraction the same together with their chocks 25 and 29 relative to the head piece 23, 24 and 27, 28 of the levers 15, 19 and 16, 31 guaranteed.
  • the axis plane 42-44 of the two work rolls 26 and 30 give over the face plane 43-43 of the two support rolls 3 and 4 to the outlet side of the multi-roll stand, and that the distance between them the two axis planes 42-42 and 43-43 can be dimensioned so that it corresponds approximately to half the work roll diameter and can be both somewhat larger and somewhat smaller than this.
  • the two work rolls 26 and 30 have a relatively small diameter compared to the two support rolls 3 and 4, the diameter ratio preferably being approximately 1: 5, but can also be smaller or larger .
  • the bending of the work rolls 26 and 30 in the vertical direction is carried out with the aid of the vertical bending cylinders 17 acting on the levers 15, 16 and on the levers 19 and 21 attacking vertical bending cylinder 22 causes.
  • a bend in the horizontal direction can be achieved on at least one of the two work rolls 26 and 30.
  • the upper work roll 26 interacts with an intermediate roll 45, which is mounted in the levers 19 and in turn abuts support rollers 46, which are supported on the support bridge 12.
  • a corresponding intermediate roller 47 also interacts with the lower work roller 30, which in turn bears against support rollers 48 which are mounted in the support bridge 13.
  • horizontal bending devices 49 which are accommodated in the upper support bridge 12, can act on the support rollers 46 and the intermediate roller 45 and thus also on the upper work roller 26. Furthermore, it is shown there that 13 horizontal bending devices 50 also sit in the lower support bridge, by means of which the lower work roll 42 can be acted on via the support rolls 48 and the intermediate roll 47.
  • roller stands 1 can be assigned to the inlet-side holding blocks 11. These are particularly important if constant operating conditions are to be guaranteed for a multi-roll stand operated in reversing operation. For the sake of simplicity, however, these horizontal adjustment devices are not shown in the drawing.
  • Fig. 4 of the drawing the horizontal bend which can be achieved in a multi-roll stand of the type explained above for a work roll is shown schematically.
  • the left half of the figure shows the possible setting of the work roll in question to a parabolic shape of the first order.
  • a second-order bending shape is shown for the work roll in question, which corresponds to the so-called M or W shape and can be adjusted if the work rolls are sufficiently slender.
  • 5 of the drawing shows which vertical component results from the horizontal bend according to FIG. 4 when the work rolls are arranged off-center.
  • a left-hand parabolic shape of the first order is again indicated in the left half of FIG. 5, while the right-hand half represents the second-order bending shape, that is to say the so-called M or W shape.
  • FIG. 6 shows the effect which arises from the vertical bending on the work roll neck under certain width and load conditions.
  • FIG. 7 different roll gap profiles can be seen from FIG. 7, which can be achieved by the combined effect of horizontal and vertical bending of the work rolls.
  • the intensifying effects of both bending effects are shown, while in c) and d) it can be seen that by switching the two bending effects against one another, roll gap profiles can be produced which result from the second-order bending shape for the work rolls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Transplanting Machines (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
EP84101855A 1983-03-11 1984-02-22 Mehrwalzengerüst Expired - Lifetime EP0118812B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3308673A DE3308673A1 (de) 1983-03-11 1983-03-11 Mehrwalzengeruest
DE3308673 1983-03-11

Publications (3)

Publication Number Publication Date
EP0118812A2 EP0118812A2 (de) 1984-09-19
EP0118812A3 EP0118812A3 (en) 1985-01-09
EP0118812B1 true EP0118812B1 (de) 1990-08-01

Family

ID=6193174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84101855A Expired - Lifetime EP0118812B1 (de) 1983-03-11 1984-02-22 Mehrwalzengerüst

Country Status (5)

Country Link
US (1) US4598566A (ko)
EP (1) EP0118812B1 (ko)
JP (1) JPS59166306A (ko)
KR (1) KR910001767B1 (ko)
DE (2) DE3308673A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008032524A1 (de) 2008-07-10 2010-01-14 Sms Siemag Aktiengesellschaft Walzenanordnung

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0620561B2 (ja) * 1985-04-03 1994-03-23 株式会社日立製作所 圧延機のロ−ルベンデイング装置
DE3605614A1 (de) * 1986-02-21 1987-08-27 Schloemann Siemag Ag Walzgeruest mit vertikal in staenderfenstern verschieblichen einbaustuecken
JPH0741290B2 (ja) * 1986-08-08 1995-05-10 株式会社日立製作所 多段圧延機
EP0416880B1 (en) * 1989-09-08 1994-06-01 Hitachi, Ltd. Rolling mill and rolling method
JP3121471B2 (ja) * 1993-04-22 2000-12-25 株式会社日立製作所 圧延機および圧延方法
DE10243677A1 (de) * 2002-09-20 2004-04-01 Sms Demag Ag Reibungsarmes Biegesystem in einem Mehrwalzen-Walzgerüst
US7185522B2 (en) * 2005-05-10 2007-03-06 T. Sendzimir, Inc. Side supported 6-high rolling mill
US8365563B2 (en) * 2009-11-16 2013-02-05 Quad Engineering, Inc. Methods for reducing ridge buckles and annealing stickers in cold rolled strip and ridge-flattening skin pass mill

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1864299A (en) * 1928-10-04 1932-06-21 Ind Methods Company Rolling mill
US3003373A (en) * 1953-01-21 1961-10-10 Schloemann Ag Multi-roll stand for rolling mills
GB792523A (en) * 1955-04-18 1958-03-26 Schloemann Ag Improved means for keeping working rolls in contact with backing rolls and supporting rollers in rolling mills
DE1527713A1 (de) * 1966-06-28 1970-01-15 Schloemann Ag Mehrwalzengeruest
DE1602219A1 (de) * 1967-10-16 1970-06-18 Schwermaschb Kom Ernst Thaelma Mehrwalzengeruest
US3653968A (en) * 1970-05-04 1972-04-04 Union Carbide Corp Solid state electrochemical cells
AT317817B (de) * 1972-03-03 1974-09-10 Thaelmann Schwermaschbau Veb Mehrwalzengerüst
DE2522213C3 (de) * 1975-05-17 1980-05-14 Schloemann-Siemag Ag, 4000 Duesseldorf Mehnvalzengerust
US4059002A (en) * 1976-10-20 1977-11-22 Schloemann- Siemag Aktiengesellschaft Multi-roll rolling mill stand
CH636991B (de) * 1977-08-10 Ciba Geigy Ag Verfahren zum faerben oder nachbehandeln von polyesterfasern.
JPS57165104A (en) * 1981-04-02 1982-10-12 Ishikawajima Harima Heavy Ind Co Ltd Multiple stages rolling mill having shape controlling function
JPS5823508A (ja) * 1981-07-31 1983-02-12 Ishikawajima Harima Heavy Ind Co Ltd 形状制御機能を有する圧延機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008032524A1 (de) 2008-07-10 2010-01-14 Sms Siemag Aktiengesellschaft Walzenanordnung

Also Published As

Publication number Publication date
KR840007834A (ko) 1984-12-11
US4598566A (en) 1986-07-08
JPH0261841B2 (ko) 1990-12-21
DE3482842D1 (de) 1990-09-06
EP0118812A3 (en) 1985-01-09
KR910001767B1 (ko) 1991-03-23
JPS59166306A (ja) 1984-09-19
DE3308673A1 (de) 1984-09-20
EP0118812A2 (de) 1984-09-19

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