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EP0767012A2 - Cage de laminoir de précision - Google Patents

Cage de laminoir de précision Download PDF

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Publication number
EP0767012A2
EP0767012A2 EP96890148A EP96890148A EP0767012A2 EP 0767012 A2 EP0767012 A2 EP 0767012A2 EP 96890148 A EP96890148 A EP 96890148A EP 96890148 A EP96890148 A EP 96890148A EP 0767012 A2 EP0767012 A2 EP 0767012A2
Authority
EP
European Patent Office
Prior art keywords
crosshead
frame
rollers
roller
drive
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.)
Withdrawn
Application number
EP96890148A
Other languages
German (de)
English (en)
Other versions
EP0767012A3 (fr
Inventor
Ernst Dipl.-Ing. Schandl
Ernst Pokorny
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau 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
Application filed by Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Publication of EP0767012A2 publication Critical patent/EP0767012A2/fr
Publication of EP0767012A3 publication Critical patent/EP0767012A3/fr
Withdrawn legal-status Critical Current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
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • 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
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B21B13/12—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process axes being arranged in different planes
    • 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
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • 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
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/14—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by pivotally displacing
    • 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
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
    • B21B35/04—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills each stand having its own motor or motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills

Definitions

  • the invention relates to a precision roll stand, with a roll housing which absorbs the rolling forces, in which rolls forming a pair of rolls, in particular caliber rolls, are rotatably mounted with their chocks and adjustable by means of adjusting means with respect to one another while changing the center distance, and with a drive housing having a roll drive, the Drive housing can be connected to the roller housing by establishing a drive connection of the roller drive with the rollers and can be removed therefrom by loosening the drive connection.
  • At least two precision roll stands - also referred to in the specialist literature as sizing roll stands - are arranged in a row one after the other, etc. either inclined at an angle of 45 ° once in one direction and once in the opposite direction to the horizontal plane or alternately arranged horizontally-vertically, with adjacent precision roll stands being inclined at 90 ° to one another.
  • the caliber rolls are preferably mutually adjustable under load, so that deviations in the dimensions of the rolled product from the ideal dimensions can be corrected during rolling.
  • a precision roll stand of the type described at the outset is known, for example, from AT-B-370.643.
  • this caliber roller with its bearings is used in eccentric bearing bushes in this known precision rolling stand.
  • the bearing bushes are rotatably inserted in the roller housing, so that the rolling caliber or the center distance of the two caliber rollers can be changed by rotating the bearing bushes.
  • the invention aims at avoiding these disadvantages and difficulties and has as its object to create a precision rolling stand of the type described above, with which a quick adjustment of the rolling caliber is possible, so that rolling stock can be produced with an extremely high dimensional accuracy.
  • deviations should be able to be corrected immediately after they arise, so that deviations of, for example, ⁇ 0.1 mm based on a rolling stock diameter of approximately 16 mm can be guaranteed.
  • the invention has the task of being able to change the rolls of the precision roll stand quickly and easily in order to be able to use the precision roll stand for different rolled material.
  • the roller housing has a frame that receives and guides the chocks of the rollers and is open in the direction of adjustment of the rollers and a crosshead that closes the frame, that the crosshead carries the adjusting device designed as a pressure medium cylinder, that the crosshead is rigid with the frame is connectable and that the drive housing is supported on the crosshead.
  • the arrangement of the pressure medium cylinders in the base part according to the invention not only enables a quick adjustment of the rolling caliber, but also results in a very simple and quick interchangeability of the rollers, which can be removed from the precision rolling stand with the frame carrying them. Then there remains the crosshead of the roller housing with the drive housing as well as the roller drive and the adjusting device in the rolling mill, so that neither adjustment work for the frame exchanged together with the rollers nor on the caliber adjustment have to be carried out.
  • the drive housing is expediently rigidly connectable to the crosshead.
  • a particularly quick change of the rollers can be carried out if the crosshead can be connected to the frame by means of a quick release device.
  • the quick-action clamping device is advantageously formed by tie rods, which are adjustably arranged on the crosshead and can be inserted into groove-shaped recesses in the frame.
  • a simple and inexpensive construction is characterized in that one of the rollers is supported in a chock receiving both bearings of this roller, that the chock is guided displaceably in the frame and that the chock rests on the pressure medium cylinders in the assembled state of the precision roll stand.
  • a robust construction which results in a high accuracy of the rolling stock even with high rolling forces, is characterized in that the frame surrounds the chocks of both rolls in a U-shape and the crosshead is designed as a part connecting the two legs of the U.
  • the precision roll stand is preferably characterized by an automatic thickness control system acting on the adjusting device for adjusting the axis distance of the rolls forming a pair of rolls.
  • FIG. 1 illustrating an oblique view of a part of a rolling mill with two precision rolling stands arranged one behind the other in the rolling direction.
  • Fig. 2 shows a detail of Fig. 1, but with the frame pivoted up.
  • Fig. 3 illustrates a frame with caliber rollers in an exploded view.
  • the first figure 1 shows two precision rolling stands 1, 2 arranged one behind the other in the rolling direction, of a bar mill, which is formed by a total of several rolling units, such as a roughing mill, an intermediate mill, a finishing mill and a precision mill stand, the two precision mill stands 1, 2 forming the precision mill stand of this bar mill .
  • the number of precision roll stands of the precision roll stand depends on the requirements; here more than two precision rolling stands could also be arranged one behind the other.
  • the two precision roll stands 1, 2 are arranged at an angle of 45 ° with respect to the horizontal 3, etc. once inclined to one side and once inclined to the other side so that they form an angle of 90 ° with one another.
  • Each of the two identically designed, but laterally arranged, precision rolling stands has a roller housing 4 in which a pair of caliber rollers 5, 6 with their chocks 7, 8 are rotatably mounted.
  • the rolling forces are absorbed by the roller housing 4.
  • a caliber roll 5 of the caliber rolls 5, 6 is rigid in the roll housing 4, i.e. immovable, rotatably mounted, whereas the second caliber roller 6 is adjustably mounted by means of an adjusting device 9 for the purpose of changing the center distance of the two caliber rollers 5, 6. A change in the center distance and thus the rolling caliber can be carried out during the rolling process.
  • the roller housing has a frame 10, in which both caliber rollers 5, 6 are mounted and the adjustable caliber roller 6 is also guided.
  • This frame 10 is U-shaped.
  • the two legs 11, 12 of the U-shaped frame 10 serve as guides for the adjustable caliber roller 6, etc. whose chock 8, in which the caliber roller 6 is rotatably mounted with its two bearings.
  • guide strips 13 are used in the legs 11, 12 of the U, which engage in corresponding guide recesses 14 of the chock 8.
  • the roller housing 4 has a crosshead 15 which closes the frame 10 and rigidly connects the two free ends of the two legs 11, 12 of the U.
  • tie rods 16 are adjustably mounted in the crosshead 15 and engage with their anchor heads 17 in corresponding groove-shaped recesses 18 on the end faces of the free ends of the legs 11, 12 of the U.
  • the tie rods form with their actuating device, which e.g. can be formed by pressure medium cylinders 19, a quick release device, which enables a quick and uncomplicated release of the frame 10 from the crosshead 15 or vice versa, a quick fixation of the two parts 10 and 15 to each other.
  • a drive housing 20 which has the roller drive is rigidly attached to the crosshead 15.
  • This drive housing 20 carries support brackets 21 for supporting the entire precision roll stand 1 or 2 against the foundation.
  • the frame 10 is pivotably mounted on the drive housing 20 at its end facing away from the crosshead 15, that is to say with the base of the U, etc. Via support brackets 22 arranged on the frame 10, which carry bolts 23, which in turn are supported in upwardly open storage pockets 24 which are provided on the outside of the drive housing 20.
  • the roll journals 25 of the caliber rolls 5, 6 protrude from the frame 10 and can each be connected to the drive journals 27 of the roll drive by means of a coupling 26.
  • the coupling is designed as a tooth coupling.
  • the connection can be made automatically by pivoting the frame 10 into the installation position shown in FIG. 1, the anchor heads 17 sliding into the corresponding grooves 18 of the frame 10.
  • Connecting elements for the coolant to be fed to the caliber rollers 5, 6 can also be automatically connected to the stationary lines in a manner known per se when the frame 10 is pivoted in and out of the installed position, e.g. through plug connections etc.
  • the pressure medium cylinders forming the adjusting device 9 are provided on the crosshead 15 in a recess 28. These pressure medium cylinders 9 act directly on the chock 8 of the adjustable caliber roller 6 as soon as the frame 10 is pivoted into the installed position.
  • the arrangement of the pressure medium cylinders 9 on the crosshead 15 which remains stationary when changing the rollers eliminates the need to disconnect or reconnect pressure medium lines leading to the pressure medium cylinders 9 when changing the caliber rollers 5, 6.
  • a guide device 29 for guiding the rolling stock which can be equipped, for example, with a thickness measuring device, is arranged between the two precision roll stands 1, 2.
  • the pressure medium cylinders 5, which are designed as hydraulic cylinders, are acted upon by an automatic thickness control system in order to compensate for dimensional deviations of the rolling stock from the ideal dimension immediately after such dimensional deviations have been determined, i.e. to eliminate.
  • Such thickness control systems are known in a wide variety of variants.
  • AGC Automatic Gauge Control System
  • US Pat. No. 4,428,054 is particularly suitable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
EP96890148A 1995-09-28 1996-09-24 Cage de laminoir de précision Withdrawn EP0767012A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1608/95 1995-09-28
AT0160895A AT406232B (de) 1995-09-28 1995-09-28 Präzisionswalzgerüst

Publications (2)

Publication Number Publication Date
EP0767012A2 true EP0767012A2 (fr) 1997-04-09
EP0767012A3 EP0767012A3 (fr) 1997-04-16

Family

ID=3517110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96890148A Withdrawn EP0767012A3 (fr) 1995-09-28 1996-09-24 Cage de laminoir de précision

Country Status (4)

Country Link
US (1) US5816144A (fr)
EP (1) EP0767012A3 (fr)
AT (1) AT406232B (fr)
TW (1) TW348079B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009144107A1 (fr) 2008-05-26 2009-12-03 Siemens Vai Metals Technologies Gmbh & Co Installation de coulée continue à plusieurs lignes
CN103785691A (zh) * 2014-02-27 2014-05-14 济南重工股份有限公司 一种轧管机接轴定位托架

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1048369A1 (fr) * 1999-03-22 2000-11-02 Boegli-Gravures S.A. Dispositif de gaufrage pour matériel plat et étendu
CN1273905A (zh) 1999-05-17 2000-11-22 伯格利-格拉维瑞斯股份有限公司 处理扁平材料的设备
US6665998B1 (en) 2000-05-17 2003-12-23 Boegli-Gravures Sa Embossing device for planar materials
US6817266B1 (en) * 2000-11-03 2004-11-16 Beacon Power Corporation Stiff metal hub for an energy storage rotor
US6604397B2 (en) 2001-02-05 2003-08-12 Dietrich Industries, Inc. Rollforming machine

Family Cites Families (22)

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DE970102C (de) * 1950-02-21 1958-08-21 Mannesmann Meer Ag Gruppenantrieb fuer kontinuierliche Walzwerke
GB883059A (en) * 1958-01-07 1961-11-22 Moeller & Neumann Gmbh Improvements in rolling mills arranged for the removal of roll housings
FR1214061A (fr) * 1958-03-24 1960-04-06 Schloemann Ag Cage de laminoir constituée par une paire de cylindres et une paire de pignons
DE1110115B (de) * 1958-03-24 1961-07-06 Schloemann Ag Loesbare Befestigung eines Walzgeruestes an einem feststehenden Kammwalzengeruest
US3016772A (en) * 1959-04-20 1962-01-16 Beloit Iron Works Drive assembly for metal working mill
US3336781A (en) * 1964-08-24 1967-08-22 Morgan Construction Co Rolling mill
US3244090A (en) * 1964-09-01 1966-04-05 Perkins & Son Inc B F Calender
IT1024204B (it) * 1974-09-25 1978-06-20 Danieli Off Mecc Perfezionamenti alle gabbie a duo ribaltabili e gabbie a duo ribaltabili ocsi perfezionate
US3945234A (en) * 1975-01-02 1976-03-23 Rolf Steinbock Tandem rolling mill arrangement
DE2528243C3 (de) * 1975-06-25 1979-11-22 Th. Kieserling & Albrecht, 5650 Solingen Richtmaschine für stangenförmige Werkstücke
US4205596A (en) * 1978-05-15 1980-06-03 W. R. Chestnut Engineering, Inc. Rotary die cutting device
US4428054A (en) * 1979-11-05 1984-01-24 Kawasaki Steel Corporation Automatic control methods and devices for rolling hills
GB2069869B (en) * 1980-02-27 1983-07-27 Nurse W A Mill
AT370643B (de) * 1981-05-14 1983-04-25 Gfm Fertigungstechnik Walzgeruest
IT1168096B (it) * 1981-06-11 1987-05-20 Innocenti Santeustacchio Spa Laminatoio continuo a gabbie incrociate per la produzione di tubi senza saldatura
GB2129722B (en) * 1982-10-15 1985-12-11 Ishikawajima Harima Heavy Ind Pipe-rolling mills
IT1209050B (it) * 1983-11-11 1989-07-10 Danieli Off Mecc Rulli e attrezzature su gabbie di dispositivo per la sostituzione di laminazione con rulli a sbalzo.
US4580429A (en) * 1985-01-15 1986-04-08 Morgan Construction Company Rolling mill roll stand with hydraulic roll position control
AT390741B (de) * 1986-11-24 1990-06-25 Andritz Ag Maschf Walzwerk, insbesondere kaltwalzwerk
IT1226137B (it) * 1988-10-18 1990-12-17 Danieli Off Mecc Dispositivo cambio attrezzature su una pluralita' integrata di gabbie con coppie di rulli a sbalzo ad asse alterno
JPH07102364B2 (ja) * 1989-10-20 1995-11-08 日本鋼管株式会社 プレストレス式ユニバーサル圧延機
DE4117054A1 (de) * 1991-05-22 1992-11-26 Mannesmann Ag Sizing-geruest gruppe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009144107A1 (fr) 2008-05-26 2009-12-03 Siemens Vai Metals Technologies Gmbh & Co Installation de coulée continue à plusieurs lignes
CN103785691A (zh) * 2014-02-27 2014-05-14 济南重工股份有限公司 一种轧管机接轴定位托架

Also Published As

Publication number Publication date
AT406232B (de) 2000-03-27
EP0767012A3 (fr) 1997-04-16
TW348079B (en) 1998-12-21
ATA160895A (de) 1999-08-15
US5816144A (en) 1998-10-06

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