US3260093A - Strip flattening device - Google Patents

Strip flattening device Download PDF

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Publication number
US3260093A
US3260093A US356530A US35653064A US3260093A US 3260093 A US3260093 A US 3260093A US 356530 A US356530 A US 356530A US 35653064 A US35653064 A US 35653064A US 3260093 A US3260093 A US 3260093A
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United States
Prior art keywords
flexing
strip
rolls
roll
support
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Expired - Lifetime
Application number
US356530A
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English (en)
Inventor
Natalis H Polakowski
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Individual
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Individual
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Filing date
Publication date
Priority to US356530A priority Critical patent/US3260093A/en
Application filed by Individual filed Critical Individual
Priority to SE4166/65A priority patent/SE314348B/xx
Priority to AT292865A priority patent/AT258088B/de
Priority to FR11309A priority patent/FR1426849A/fr
Priority to CH439465A priority patent/CH444795A/de
Priority to ES0311313A priority patent/ES311313A1/es
Priority to BE661931A priority patent/BE661931A/xx
Priority to DE1452829A priority patent/DE1452829C3/de
Priority to NL6504163A priority patent/NL6504163A/xx
Priority to LU48306A priority patent/LU48306A1/xx
Application granted granted Critical
Publication of US3260093A publication Critical patent/US3260093A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening

Definitions

  • This invention relates to constructions used for the flattening of metal strip.
  • the invention is concerned with the flattening of light gauge strip including tin plate, stainless steel, brass or aluminum strip in thicknesses below .020 and particularly below .010 inch.
  • roller levelers currently available for the flattening of strip are known to be ineflicient or altogether ineflective on materials below 0.008 inch or so, due to the difficulties encountered in properly supporting the thin flexing rolls against deflection.
  • FIGURE 1 is a diagrammatic elevational view of a flattening device characterized by the features of this invention
  • FIGURE 2 is an enlarged detail view illustrating end support means for flexing rollers employed in a flattening device of the type shown in FIGURE 1; 7
  • FIGURE 3 is a diagrammatic elevational view of an alternative form of flattening device
  • FIGURE 4 is an enlarged fragmentary sectional plane view illustrating support means for the back-up and flexing rollers of the flattening device of FIGURE 3;
  • FIGURE 5 is a fragmentary elevational view of the support means shown in FIGURE 4.
  • the constructions of this invention generally comprise a plurality of strip flexing rolls with each being rotatably mounted adjacent one large support roll.
  • the flexing rolls are disposed in a generally horizontal plane and the strip to be flattened is adapted to be passed under tension over the rolls with the strip contacting opposite sides of adjacent rolls. Accordingly, the strip defines a more or less sinuous path with respect to the flexing rolls.
  • a support roll engages each flexing roll on the side opposite that side which is engaged by the strip. Accordingly, the strip bears down on the flexing rolls, and this pressure is opposed by the large support rolls contacting the opposite side of the flexing rolls.
  • additional deflection rolls 4 are disposed on the side of the strip opposite the first mentioned support roll. These additional rolls are engaged by the strip, and they serve to stabilize the flexing rolls in the device.
  • FIGURE 1 The construction shown in FIGURE 1 consists of an idler roll 1 and a plurality of support rolls 2, 3, 4, 5 and 6.
  • the support rolls are of relatively large diameter, and flexing rolls 7, 8, 9, and 11 engage the support rolls and are located on opposite sides of adjacent support rolls.
  • the strip 12 passes under tension beneath the idler 1 and then over the flexing rolls without ever contacting any of the support rolls.
  • Suitable coil payoff means are 3,260,093 Patented July 12, 1966 provided ahead of the idler 1 and suitable take-up means are located beyond the idler 13.
  • the diameters of the flexing rolls are selected so that the ratio of the first flexing roll diameter to the strip thickness is preferably between 50 and :1 although both lower and higher ratios can be employed.
  • a significant plastic strain will be produced in the strip by such a flexing roll and under the combined effect of bending and tension, the strip will be stretched slightly in its shorter portions to flatten the material.
  • the amount of stretch required varies from a fraction of one percent to about two or three percent.
  • the diameter of the support rolls may also be increased roughly in proportion to the changing diameter of the respective flexing rolls.
  • one end of flexing roll '15 is loosely inserted into a vertical slot-type holder 17-18 made of, or lined with, a bearing material at least on holder plate 17, or the side of the flex roll 15 when the strip 16 leaves it.
  • Holder plate 18 is provided just to keep roll 15 from falling out when the strip is slack or altogether removed.
  • the other end of 15 is similarly confined.
  • the machine will usually consist of two frames, the upper carrying pairs 3-8, 5-10, etc., while the lower, pairs 2-7, 4-9, 6-11, etc.
  • the two frames may be connected by a hinge on one side and swinging bolts on the other. This allows opening the machine for easy threading and for service.
  • the construction shown in FIGURE 3 comprises a succession of roll clusters, each consisting of three relatively large diameter rollers arranged in a triangle, and a smaller flexing roll located in between the three support rollers.
  • rollers 1-2'-3', 4'-5-6', 7'- taining flexing roll 10', 11, 12', cluster resembles a letter Y, the large rolls being located at the tips of the arms with the small flexing roll at the center node. They are arranged in a line so that the Y-like roll sets are alternately pointing up and down.
  • the flexing rolls within successive clusters increase in size from the entry to the exit of the flattener, the smallest being as little as or even diameter for strip about 0.002" thick, about A to for 0.003" to 0.006" strip and proportionally larger for thicker material.
  • each cluster conetc., respectively.
  • Each The clusters consist of support and deflector typical sequence is /2%11%2. /2". The last two rolls are so thick and rigid that a cluster may not be needed and they may be unsupported unless the strip is wider than 10". In the latter case, backing support for them as well as for the outer rollers in each cluster may be required.
  • the strip passing through the machine enters at left, wraps around deflector roll 1, then, without touching support roll'3, wraps in the opposite direction over flexing roll 10', over deflector rolls 2' and 4, over flexing roll 10, etc.
  • FIGURES 4 and 5 The mounting of the various rollers in the machine is illustrated in FIGURES 4 and 5.
  • the lower set of rolls 3', 4, 5', 9, etc. is rotatably mounted in bearings 14, 15, etc., located in lower frame 16.
  • the flexing rolls (also 12' and every other alternate) are also mounted in 16' by means of support plates 17' bolted to opposite sides of 16 and equipped with oversize blind holes 19'.
  • the upper frame 18' is similarly constructed, this including support plates 20 containing roll 11, etc. It can be hinged on one end of the lower frame 16' for easy access to the interior and also for threading the strip.
  • a pair of swing-out bolts is used on the other end to hold the upper frame down in operation.
  • a device for the flattening of metal strip comprising a plurality of strip flexing rollers, adjacent flexing rollers being disposed along a generally horizontal plane whereby said strip can be fed through said device in a substantially sinuous path for flexing in alternate directions over consecutive flexing rolls, large support rolls engaging said flexing rolls on the side opposite the side in contact with the strip, and wherein said flexing rolls are loosely confined at their ends against displacement in the direction of strip movement.
  • a device for the flattening of metal strip comprising a plurality of strip flexing rollers with adjacent flexing rollers being disposed along a generally horizontal plane whereby said strip can be fed through said device ina substantially sinuous path for flexing in alternate directions over consecutive flexing rolls, large support rolls engaging said flexing rolls on the side opposite the side in contact with the strip, said flexing rolls being loosely confined at their ends against displacement in the direction of strip movement, and wherein said flexing rolls are supported in vertical channels and are free to rotate and to move vertically therein.
  • a device for the flattening of metal strip comprising a plurality of strip flexing rollers with adjacent flexing rollers being disposed generally along a common plane whereby said strip can be fed through said device in a substantially sinuous path for flexing in alternate directions over consecutive flexing rolls, large support rolls engaging said flexing rolls on the side opposite the side in contact with the strip, said flexing rolls being loosely confined at their ends, and including two additional relatively large deflector rolls straddling each flexing roll and located on the side of each flexing roll opposite its respective back-up roll, said strip engaging said additional rolls during passage through said device.
  • each combination of a support roll and two additional deflector rolls comprises a cluster in the shape of a Y and wherein said clusters alternate between upright Ys and inverted Ys along the length of said device.
  • a large support roll engaging the flexing roll on the side opposite the side of the flexing roll which is in contact with the strip, and including two additional relatively large deflector rolls straddling said flexing roll and located on the side of each flexing roll opposite said support roll, said strip engaging said additional rolls during passage through said device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US356530A 1964-04-01 1964-04-01 Strip flattening device Expired - Lifetime US3260093A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US356530A US3260093A (en) 1964-04-01 1964-04-01 Strip flattening device
AT292865A AT258088B (de) 1964-04-01 1965-03-31 Einrichtung zum Flachrichten und Glätten von Metallstreifen
FR11309A FR1426849A (fr) 1964-04-01 1965-03-31 Dispositif pour le dressage des bandes métalliques
CH439465A CH444795A (de) 1964-04-01 1965-03-31 Einrichtung zum Flachrichten und Glätten von Metallstreifen
SE4166/65A SE314348B (enrdf_load_stackoverflow) 1964-04-01 1965-03-31
ES0311313A ES311313A1 (es) 1964-04-01 1965-04-01 Dispositivo para el planteamiento de tiras metalicas.
BE661931A BE661931A (enrdf_load_stackoverflow) 1964-04-01 1965-04-01
DE1452829A DE1452829C3 (de) 1964-04-01 1965-04-01 Walzenrichtmaschine für Metallbänder
NL6504163A NL6504163A (enrdf_load_stackoverflow) 1964-04-01 1965-04-01
LU48306A LU48306A1 (enrdf_load_stackoverflow) 1964-04-01 1965-04-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US356530A US3260093A (en) 1964-04-01 1964-04-01 Strip flattening device

Publications (1)

Publication Number Publication Date
US3260093A true US3260093A (en) 1966-07-12

Family

ID=23401832

Family Applications (1)

Application Number Title Priority Date Filing Date
US356530A Expired - Lifetime US3260093A (en) 1964-04-01 1964-04-01 Strip flattening device

Country Status (10)

Country Link
US (1) US3260093A (enrdf_load_stackoverflow)
AT (1) AT258088B (enrdf_load_stackoverflow)
BE (1) BE661931A (enrdf_load_stackoverflow)
CH (1) CH444795A (enrdf_load_stackoverflow)
DE (1) DE1452829C3 (enrdf_load_stackoverflow)
ES (1) ES311313A1 (enrdf_load_stackoverflow)
FR (1) FR1426849A (enrdf_load_stackoverflow)
LU (1) LU48306A1 (enrdf_load_stackoverflow)
NL (1) NL6504163A (enrdf_load_stackoverflow)
SE (1) SE314348B (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466913A (en) * 1967-08-29 1969-09-16 Mckay Machine Co Strip working apparatus
US3513677A (en) * 1967-08-02 1970-05-26 Natalis H Polakowski Metal strip processing machine
US3678720A (en) * 1970-08-13 1972-07-25 Sutton Eng Co Roller leveler and method of leveling
US3834202A (en) * 1973-04-24 1974-09-10 Toyo Kohan Co Ltd Metal strip straightening machine
US3958439A (en) * 1973-05-31 1976-05-25 Toyo Kohan Co., Ltd. Method for recovering ductility of a cold rolled metal strip
US4587822A (en) * 1984-08-10 1986-05-13 The Monarch Machine Tool Company Tension leveling apparatus
US4633697A (en) * 1985-08-16 1987-01-06 Mesta Engineering Company Plate levelling machine
WO1996014175A1 (en) * 1994-11-08 1996-05-17 Selema S.R.L. Flattening group in levelling machines kept under tension, for metal bands, with operative rollers of increasing diameter
CN104492855A (zh) * 2014-12-23 2015-04-08 江苏铂宝焊材有限公司 钢丝防翘头装置
US10717124B2 (en) * 2014-09-12 2020-07-21 Honda Motor Co., Ltd. Press forming method and plate material expansion device used in said method
WO2021001271A1 (en) * 2019-07-02 2021-01-07 Nv Bekaert Sa Apparatus and methods using the apparatus for treating metal wire

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482482B1 (enrdf_load_stackoverflow) * 1980-05-16 1984-08-24 Siderurgie Fse Inst Rech
FR2586595B1 (fr) * 1985-09-05 1989-08-18 Maubeuge Fer Dispositif de planage d'une bande metallique sous traction.
DE19506224C2 (de) * 1995-02-22 1998-09-24 Schleicher Gmbh & Co Hermann Walzenrichtmaschine zum Richten von Blechen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2060400A (en) * 1932-11-30 1936-11-10 Bethlehem Steel Corp Method of and apparatus for treating sheet metal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2060400A (en) * 1932-11-30 1936-11-10 Bethlehem Steel Corp Method of and apparatus for treating sheet metal

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3513677A (en) * 1967-08-02 1970-05-26 Natalis H Polakowski Metal strip processing machine
US3466913A (en) * 1967-08-29 1969-09-16 Mckay Machine Co Strip working apparatus
US3678720A (en) * 1970-08-13 1972-07-25 Sutton Eng Co Roller leveler and method of leveling
US3834202A (en) * 1973-04-24 1974-09-10 Toyo Kohan Co Ltd Metal strip straightening machine
US3958439A (en) * 1973-05-31 1976-05-25 Toyo Kohan Co., Ltd. Method for recovering ductility of a cold rolled metal strip
US4587822A (en) * 1984-08-10 1986-05-13 The Monarch Machine Tool Company Tension leveling apparatus
EP0171267A3 (en) * 1984-08-10 1987-04-22 The Monarch Machine Tool Company Tension leveling apparatus
US4633697A (en) * 1985-08-16 1987-01-06 Mesta Engineering Company Plate levelling machine
WO1996014175A1 (en) * 1994-11-08 1996-05-17 Selema S.R.L. Flattening group in levelling machines kept under tension, for metal bands, with operative rollers of increasing diameter
US10717124B2 (en) * 2014-09-12 2020-07-21 Honda Motor Co., Ltd. Press forming method and plate material expansion device used in said method
CN104492855A (zh) * 2014-12-23 2015-04-08 江苏铂宝焊材有限公司 钢丝防翘头装置
WO2021001271A1 (en) * 2019-07-02 2021-01-07 Nv Bekaert Sa Apparatus and methods using the apparatus for treating metal wire
CN114007778A (zh) * 2019-07-02 2022-02-01 贝卡尔特公司 用于处理金属线材的装置和使用该装置的方法
US20220324003A1 (en) * 2019-07-02 2022-10-13 Nv Bekaert Sa Apparatus and methods using the apparatus for treating metal wire
US11904369B2 (en) * 2019-07-02 2024-02-20 Nv Bekaert Sa Apparatus and methods using the apparatus for treating metal wire
CN114007778B (zh) * 2019-07-02 2024-11-15 贝卡尔特公司 用于处理金属线材的装置和使用该装置的方法

Also Published As

Publication number Publication date
DE1452829B2 (de) 1974-03-14
SE314348B (enrdf_load_stackoverflow) 1969-09-08
LU48306A1 (enrdf_load_stackoverflow) 1965-06-01
NL6504163A (enrdf_load_stackoverflow) 1965-10-04
DE1452829C3 (de) 1974-10-10
FR1426849A (fr) 1966-01-28
ES311313A1 (es) 1965-07-01
DE1452829A1 (de) 1969-10-30
BE661931A (enrdf_load_stackoverflow) 1965-08-02
CH444795A (de) 1967-10-15
AT258088B (de) 1967-11-10

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