US3427848A - Devices for cold-rolling and planishing metal sheet - Google Patents

Devices for cold-rolling and planishing metal sheet Download PDF

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Publication number
US3427848A
US3427848A US558634A US3427848DA US3427848A US 3427848 A US3427848 A US 3427848A US 558634 A US558634 A US 558634A US 3427848D A US3427848D A US 3427848DA US 3427848 A US3427848 A US 3427848A
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United States
Prior art keywords
sheet
cold
unit
rolling
cylinders
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US558634A
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English (en)
Inventor
Pierre Gay
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DES ATELIERS ET FORGES de la LOIRE CIE
FORGES de la LOIRE CIE DES ATE
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FORGES de la LOIRE CIE DES ATE
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    • 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
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B1/222—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 plates, strips, bands or sheets of indefinite length in a rolling-drawing process; in a multi-pass mill
    • 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
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B1/30—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 plates, strips, bands or sheets of indefinite length in a non-continuous process
    • B21B1/32—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 plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B21B1/36—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 plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by cold-rolling

Definitions

  • This invention relates to a device for cold-rolling a metal sheet to the desired degree.
  • the sheet is caused to pass firstly through a rolling stand and then through a planishing or leveling stand, the sheet speeds at the inlet end of the rolling stand and at the outlet end of the planishing or leveling stand having a predetermined adjustable ratio.
  • This device comprises a rolling stand and a planishing or leveling stand disposed between two cylinder units termed the one the driving unit and the other the retaining unit, each cylinder unit consisting of a pluraliy of cylinders over and under which the sheet is caused to pass alternately, adequate coupling means being provided for keeping the peripheral speeds of the cylinders of said retaining unit and of the cylinders of said driving unit at a predetermined adjustable ratio.
  • FIGURE 1 is an elevational, very diagrammatic view, showing the principle of the device of this invention
  • FIGURE 2 is an elevational view showing a typical form of embodiment of the device of this invention.
  • FIGURE 3 is a plan view of the arrangement shown in FIGURE 2.
  • FIGURE 1 illustrates the essential component elements of a device for carrying out this method.
  • the sheet 1 to be cold-hardened by rolling is fed in the direction of the arrow.
  • This sheet 1 is rolled in a coldrolling stand comprising working cylinders 2 and 2.
  • the sheet Upon completion of this cold-rollling operation, the sheet is directed through a planishing or leveling unit designated as a whole by the reference numeral 3 in the figure and wherein the sheet is flexed alternately in one and the other direction.
  • a device for continuously tensioning the sheet 1 is associated with the rolling stand and the planishing or leveling unit, whereby if A is a point of sheet 1 which is located upstream of the rolling stand, and if this point A travels at a speed VA, and if B is a point of said sheet 1 which is located after the planishing unit, and if this point B travels at a speed VB, a predetermined or desired speed ratio VB/ VA can be imposed at will.
  • the rolling and planishing steps can be performed in a single and same operation, which is particularly advantageous; thus, the elongation resulting from these two successive steps and therefore the degree of coldhardening of the end product will have the desired value.
  • variable elongations and therefore variable degrees of cold-hardening are obtained according to the magnitude of the pressure exerted by the rolling cylinders, the relative imbrication of the rolls of the planishing cylinders, the sheet width and thickness, and the nature of the metal constituting the sheet.
  • the device according to this invention can be used with either the planishing unit or the rolling stand inoperative, this possibility constituting an interesting feature if only one of the planishing or rolling operations on the sheet is contemplated.
  • this unit 22 comprises five cylinders such as 24 having their axes of rotation parallel to each other; the sheet 1 is caused to pass alternately over and under these cylinders, as shown.
  • a presser roller 23 parallel to said cylinders 24 applies the metal sheet 1 as it enters the retaining unit against the first cylinder 24 of the unit, so that the device may operate with a slackened sheet upstream of unit 22 (at point A of FIGURE 1).
  • the presser roller 23 has its end trunnions journaled in a pair of parallel levers 26, 26' fulcrumed on a fixed shaft 27 carried by the unit 22 and parallel to the aforesaid cylinders 24.
  • levers 3 26, 26' are each responsive to a piston-cylinder unit such as 28 (FIGURE 2) having its cylinder attached t the frame structure of the retaining unit 22 by means of a member 29, the piston being attached to the end of the corresponding lever 26 or 26' which is opposite to said presser roller 23.
  • a piston-cylinder unit such as 28 (FIGURE 2) having its cylinder attached t the frame structure of the retaining unit 22 by means of a member 29, the piston being attached to the end of the corresponding lever 26 or 26' which is opposite to said presser roller 23.
  • the sheet 1 As it emerges from the retaining or input unit 22, the sheet 1 enters a rolling stand 4 comprising two coldrolling cylinders 30 and 31, and inlet and outlet guide rollers 32 and 33 respectively.
  • the metal sheet 1 When delivered from the rolling stand 4 the metal sheet 1 is fed to a planishing or leveling machine designated by the general reference numeral 5.
  • This machine operates by alternate transverse flexing and is equipped with an anti-rib stand as depicted in the British Patent 1,028,537 and in the US. Patent No. 3,326,026.
  • This planishing or levelling machine comprises rolls 34 and 35 producing a sheet distorsion by alternate flexures, each roll being provided with two bearing rollers designated by the reference numerals 36, 36 and 37, 37' respectively for preventing the rolls 34 and 35 from sagging.
  • the bearing rollers 36 and 36 are mounted on a plate 38, and the bearing rollers 37 and 37 are mounted likewise on a plate 39.
  • the planishing or levelling machine 5 further comprises an anti-tilting device according to the aforesaid British patent and U.S. patent, which comprises a cylinder 40 trunnioned in bearings provided in a plate 43 solid with plate 39.
  • This cylinder presses the metal sheet 1 against a small roller 41 called tile-correcting roll supported by a pair of bearing rollers 42, 42 to prevent same from sagging.
  • the vertical position of the tile-correcting roll 41 is adjustable to remove the tile effect.
  • the roller 41 and its bearing rollers 42 and 42 are mounted on a common support 44 adapted to pivot about a shaft 45 under the control of an eccentric system comprising a disc 47 adapted to rotate about a shaft 46 eccentric in relation to the disc center.
  • this unit 6 comprises five cylinders such as 25 having their axes parallel to those of cylinders 24, the sheet 1 being alternately flexed by passing over and under these cylinders, as shown.
  • a presser roller 7 is provided for pressing the sheet against the last cylinder 25 of unit 6 so that the device can operate with a slackened sheet at the outlet end of this unit 6 (point B of FIGURE 1).
  • This presser roller 7 is mounted like the presser roller 23; in other words, it is trunnioned in the ends of a pair of levers such as 48 fulcrumed on a pivot pin or shaft 49 rigid with the frame structure of unit 6. These levers are responsive to piston and cylinder actuators connected in 51 to the ends of levers 48 which are opposite to said roller 7.
  • this device is identical with the one described hereinabove in connection with roller 23, it is not shown in FIGURE 3.
  • This mechanism is driven from a motor 17 having two shaft ends 52 and 53.
  • the shaft end 52 is coupled to the device designated as a whole by the reference numeral 14 and termed hereinafter connecting box.
  • This connecting box of which the functions will be set forth in detail presently, comprises conventional means such as gearings, a differential and clutches.
  • the retaining unit 22 comprising the cylinders 24 is driven through the distributor box 11 actuated by the power shaft 12.
  • This distributor box is a simple gearbox designed for simultaneously starting the output shafts 58 at the same rotational speed.
  • the output shafts 58 drive in turn the shafts 13 of cylinders 24 through the medium of a reduction gearing designated as a whole by the reference numeral 59.
  • a magnetic power clutch of the type disclosed in the British patent application No. 27,064/64 and US. Patent No. 3,362,202 to Gay may be interposed on shafts 58, between the box 11 and reduction gearing 59.
  • this distributor box 8 is similar to that of distributor box 11 and consists therefore of a gearbox for rotatably driving the output shafts 60 from the input shaft 9.
  • These output shafts 60 drive in turn the shafts 10 of cylinders 25 through a suitable reduction gearing 62 and possibly clutches 61 similar to the aforesaid clutches 57.
  • the connecting box 14 consisting of conventional means (pinions, differential 15 and clutch) provides the following functions:
  • shaft 9 is connected through differential 15 to shaft 12.
  • This differential 15 is so designed that the velocity of rotation of shaft 12, that is, ca has the following characteristic:
  • m is the velocity of rotation of shaft 9.
  • K and K being constants depending on the number of teeth of the various pinions of the trains of gears in connecting box 14. As a rule, K 1.
  • a brake 63 is provided.
  • FIGURES 2 and 3 of the attached drawings describe the mode of operation of the device illustrated therein.
  • the clutch of the aforesaid connecting box 14 is released and sheet 1 is driven by the cold-rolling cylinders 30, 31 of stand 4 which constitute in this case the driving medium of the assembly.
  • the speed ratio of cylinders 24 and 25 respectively of retaining unit 22 and output unit 6 is obtained through the driving connections provided by the above-described mechanisms 8, 11, 14, 15 and 16, 18.
  • the clutch of connecting box 14 may be replaced, if desired, by a sliding dog clutch. In one position this sliding dog clutch will drive the shaft or shafts driving the cold-rolling cylinders, and in the other position it will drive the pinions of connecting box 14.
  • a driving device for properly distributing the driving and reaction torques among the cylinders of each driving and retaining units to avoid any undesired slipping of the sheet on the cylinders.
  • This device is constituted by a magnetic powder clutch 57 to 61 driving the cylinders 24, 25 respectively of each unit 22 and 6.
  • These magnetic powder clutches are disclosed in the British patent application No. 27,064/ 64 and U.S. Patent No. 3,361,155 by same applicant.
  • a device for cold-hardening sheet metal stock comprising a cold-rolling stand, a leveling stand disposed in succession to said cold-ro1ling stand in the direction of feed of the sheet to be processed, a sheet driving unit disposed at the outlet end of said leveling stand, a sheet retaining unit disposed at the inlet end of said cold-rolling stand, and means for adjustably setting the ratio of the linear speed of said sheet at the inlet end of said coldrolling stand to the linear speed of said sheet at the outlet end of said leveling stand at a predetermined, adjustable value, whereby the sheet elongation produced between said inlet and outlet ends, and therefore the cold-hardening of said sheet, may be given a predetermined value.
  • each one of said sheet retaining and driving units consist of a train of cylinders, said sheet being alternately passed over and under the successive cylinders of each unit.
  • each one of said sheet retaining and driving units consists of a train of cylinders, said sheet being passed alternately over and under the successive cylinders of the unit, a presser roller at the inlet end of said retaining unit which is adapted to press the sheet being processed against the first cylinder of the relevant :unit, and another presser roller at the outlet end of said driving unit which is adapted to press the processed sheet against the last cylinder of said driving unit, for feeding said sheet in an unstressed con dition to said device and delivering said sheet in an unstressed condition from said device.
  • a device for cold-hardening sheet metal stock comprising a cold-rolling stand and a leveling stand disposed in succession in the direction of feed of the sheet to be processed, a sheet driving unit disposed at the outlet end of said leveling stand, a sheet retaining unit disposed at the inlet end of said cold-rolling stand, each one of said sheet retaining and driving units consisting of a train of cylinders, said sheets being alternately passed over and under the successive cylinders of each unit, a presser roller at the inlet end of said retaining unit which is adapted to press the sheet being processed against the first cylinder of the relevant unit, and another presser roller at the outlet end of said driving unit which is adapted to press the processed sheet against the last cylinder of said driving unit for feeding said sheet in an :unstressed condition to said device and delivering said sheet in an unstressed condition from said device, a differential mechanism for driving said retaining and driving units, hydraulic power means releasably connected to said differential mechanism and adapted, when operative,
  • a device as set forth in claim 4 comprising an electric motor, a hydraulic pump driven from said electric motor and adapted to supply fluid under pressure to said hydraulic motor, a mechanism also driven from said electric motor, and clutch means associated with said mechanism for transmitting the motion either to all the working cylinders of the device or to a single working cylinder thereof, and/or to the cylinders of said driving and retaining units.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Control Of Metal Rolling (AREA)
US558634A 1965-08-23 1966-06-20 Devices for cold-rolling and planishing metal sheet Expired - Lifetime US3427848A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR29134A FR1489722A (fr) 1965-08-23 1965-08-23 Procédé et dispositif d'écrouissage et de planage d'une bande de métal

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US3427848A true US3427848A (en) 1969-02-18

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US558634A Expired - Lifetime US3427848A (en) 1965-08-23 1966-06-20 Devices for cold-rolling and planishing metal sheet

Country Status (6)

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US (1) US3427848A (enrdf_load_stackoverflow)
JP (1) JPS4844627B1 (enrdf_load_stackoverflow)
BE (1) BE683048A (enrdf_load_stackoverflow)
DE (1) DE1527621A1 (enrdf_load_stackoverflow)
FR (1) FR1489722A (enrdf_load_stackoverflow)
GB (1) GB1116249A (enrdf_load_stackoverflow)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641797A (en) * 1970-02-05 1972-02-15 American Metal Climax Inc Stretcher leveling system
US3777533A (en) * 1971-10-21 1973-12-11 Ungerer Irma Apparatus for straightening metal by stretching
US3783667A (en) * 1971-04-14 1974-01-08 Ungerer Irma Apparatus for straightening metal by stretching
US3798951A (en) * 1972-10-03 1974-03-26 Herr Voss Corp Torque distribution system
US3839888A (en) * 1972-11-06 1974-10-08 Wean United Inc Tension levelling of strip
US3841132A (en) * 1971-09-14 1974-10-15 Lysaght Ltd John Method of flattening metal strip exhibiting a discontinuous yield point and suppressing the discontinuous yield point
DE3636688C1 (de) * 1986-10-28 1988-03-24 Bwg Bergwerk Walzwerk Walzstrasse zum Behandeln von Metallbaendern
DE3636707A1 (de) * 1986-10-28 1988-05-19 Bwg Bergwerk Walzwerk Vorrichtung zum streckbiegerichten von metallbaendern
US4819470A (en) * 1985-04-20 1989-04-11 Bwg Bergwerk-Und Walzwerk-Maschinenbau Gmbh Method for continuously straightening thin metal strips
WO1990000451A1 (en) * 1988-07-11 1990-01-25 Blazevic David T Apparatus and method for dynamic high tension rolling in hot strips mills
US5035130A (en) * 1986-11-26 1991-07-30 M.E.P. Machine Elettroniche Piegatrici Spa Antirotation straightening machine
CN103372568A (zh) * 2012-04-24 2013-10-30 株式会社英田精密机械 同步带式冷轧成形机以及冷轧制管机
CN103920714A (zh) * 2013-01-15 2014-07-16 宝山钢铁股份有限公司 平整轧制张力放大方法及装置
EP2958688B1 (en) 2013-02-19 2018-04-04 F.I.M.I. - Fabbrica Impianti Machine Industriali - S.p.A. Roll leveller for metal sheets and a process for levelling a metal sheet with it
CN111957741A (zh) * 2020-08-07 2020-11-20 无锡华生精密材料股份有限公司 户外运动鞋底料的生产方法
CN114011906A (zh) * 2021-11-25 2022-02-08 贵溪奥泰铜业有限公司 一种用于铜带生产用的平整装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543976B1 (fr) * 1983-04-05 1985-11-29 Inst Francais Du Petrole Nouveau procede permettant d'accroitre la resistance a la corrosion fissurante d'elements allonges tels que des armatures de conduites flexibles ou de cables, et produits ainsi obtenus
DE102006006530A1 (de) * 2006-02-10 2007-08-16 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH Richtvorrichtung und Richtverfahren für ein Metallband

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2030817A (en) * 1930-07-07 1936-02-11 Newton Steel Company Apparatus for finishing sheets
US2189329A (en) * 1935-07-16 1940-02-06 American Rolling Mill Co Tension rolling means
US2214618A (en) * 1937-08-28 1940-09-10 Westinghouse Electric & Mfg Co Continuously operating strip mill
US2742949A (en) * 1951-06-05 1956-04-24 Einar W Nilsson Leveler apparatus and method
FR1372010A (fr) * 1963-08-01 1964-09-11 Loire Atel Forges Perfectionnement aux procédés de planage des tôles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2030817A (en) * 1930-07-07 1936-02-11 Newton Steel Company Apparatus for finishing sheets
US2189329A (en) * 1935-07-16 1940-02-06 American Rolling Mill Co Tension rolling means
US2214618A (en) * 1937-08-28 1940-09-10 Westinghouse Electric & Mfg Co Continuously operating strip mill
US2742949A (en) * 1951-06-05 1956-04-24 Einar W Nilsson Leveler apparatus and method
FR1372010A (fr) * 1963-08-01 1964-09-11 Loire Atel Forges Perfectionnement aux procédés de planage des tôles

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641797A (en) * 1970-02-05 1972-02-15 American Metal Climax Inc Stretcher leveling system
US3783667A (en) * 1971-04-14 1974-01-08 Ungerer Irma Apparatus for straightening metal by stretching
US3841132A (en) * 1971-09-14 1974-10-15 Lysaght Ltd John Method of flattening metal strip exhibiting a discontinuous yield point and suppressing the discontinuous yield point
US3777533A (en) * 1971-10-21 1973-12-11 Ungerer Irma Apparatus for straightening metal by stretching
US3798951A (en) * 1972-10-03 1974-03-26 Herr Voss Corp Torque distribution system
US3839888A (en) * 1972-11-06 1974-10-08 Wean United Inc Tension levelling of strip
US4819470A (en) * 1985-04-20 1989-04-11 Bwg Bergwerk-Und Walzwerk-Maschinenbau Gmbh Method for continuously straightening thin metal strips
DE3636688C1 (de) * 1986-10-28 1988-03-24 Bwg Bergwerk Walzwerk Walzstrasse zum Behandeln von Metallbaendern
FR2605536A1 (fr) * 1986-10-28 1988-04-29 Bwg Bergwerk Walzwerk Train de laminage pour le traitement de bandes metalliques
DE3636707A1 (de) * 1986-10-28 1988-05-19 Bwg Bergwerk Walzwerk Vorrichtung zum streckbiegerichten von metallbaendern
US5035130A (en) * 1986-11-26 1991-07-30 M.E.P. Machine Elettroniche Piegatrici Spa Antirotation straightening machine
WO1990000451A1 (en) * 1988-07-11 1990-01-25 Blazevic David T Apparatus and method for dynamic high tension rolling in hot strips mills
US4909055A (en) * 1988-07-11 1990-03-20 Blazevic David T Apparatus and method for dynamic high tension rolling in hot strip mills
CN103372568A (zh) * 2012-04-24 2013-10-30 株式会社英田精密机械 同步带式冷轧成形机以及冷轧制管机
CN103372568B (zh) * 2012-04-24 2016-10-26 株式会社英田精密机械 同步带式冷轧成形机以及冷轧制管机
CN103920714A (zh) * 2013-01-15 2014-07-16 宝山钢铁股份有限公司 平整轧制张力放大方法及装置
CN103920714B (zh) * 2013-01-15 2016-06-29 宝山钢铁股份有限公司 平整轧制张力放大方法及装置
EP2958688B1 (en) 2013-02-19 2018-04-04 F.I.M.I. - Fabbrica Impianti Machine Industriali - S.p.A. Roll leveller for metal sheets and a process for levelling a metal sheet with it
CN111957741A (zh) * 2020-08-07 2020-11-20 无锡华生精密材料股份有限公司 户外运动鞋底料的生产方法
CN114011906A (zh) * 2021-11-25 2022-02-08 贵溪奥泰铜业有限公司 一种用于铜带生产用的平整装置
CN114011906B (zh) * 2021-11-25 2023-04-25 贵溪奥泰铜业有限公司 一种用于铜带生产用的平整装置

Also Published As

Publication number Publication date
DE1527621A1 (de) 1970-01-15
FR1489722A (fr) 1967-07-28
BE683048A (enrdf_load_stackoverflow) 1966-12-23
JPS4844627B1 (enrdf_load_stackoverflow) 1973-12-26
GB1116249A (en) 1968-06-06

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