CA2058691A1 - Arrangement for straightening strips, particulary metal strips - Google Patents

Arrangement for straightening strips, particulary metal strips

Info

Publication number
CA2058691A1
CA2058691A1 CA002058691A CA2058691A CA2058691A1 CA 2058691 A1 CA2058691 A1 CA 2058691A1 CA 002058691 A CA002058691 A CA 002058691A CA 2058691 A CA2058691 A CA 2058691A CA 2058691 A1 CA2058691 A1 CA 2058691A1
Authority
CA
Canada
Prior art keywords
stretch
driver
strips
strip
bending unit
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.)
Abandoned
Application number
CA002058691A
Other languages
French (fr)
Inventor
Oskar Noe
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.)
BWG Bergwerk und Walzwerk Maschinenbau GmbH
Original Assignee
BWG Bergwerk und Walzwerk Maschinenbau 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 BWG Bergwerk und Walzwerk Maschinenbau GmbH filed Critical BWG Bergwerk und Walzwerk Maschinenbau GmbH
Publication of CA2058691A1 publication Critical patent/CA2058691A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/05Stretching combined with rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/22Metal-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
    • B21B1/30Metal-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
    • B21B1/32Metal-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
    • B21B1/36Metal-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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/22Metal-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
    • B21B2001/228Metal-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 skin pass rolling or temper rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B15/00Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0071Levelling the rolled product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B38/00Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/06Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Metal Rolling (AREA)

Abstract

ABSTRACT OF THE DISCLOSURE
An arrangement for straightening finite strips, particularly metal strips. The arrangement includes a coiling reel, an uncoiling reel and a stretch-bending unit arranged between the two reels. A driver each is arranged in strip travel direction in front of and following the stretch-bending unit. In another embodiment, a temper pass stand is arranged in strip travel direction in front of the stretch-bending unit and a driver is arranged following the stretch-bending unit.

Description

2 ~ ?J ~

~ACKGROUND OF T~E INVENTION

l. Field of the Invention The present invention relates to an arrangement for straightening finite strips, particularly metal strips. The arrangement includes a coiling reel, an uncoiling reel and a stretch-bending unit arranged between the two reels.

2. Description of the Related Art In discontinuous strip treatment lines, such as, for example, stretch-bending straightening lines, stretch-bending straightening/temper-rolling lines, or the like, in which only individual coils are treated, strip losses of approximately 15 to 20 meters occur at both ends of the strip being treated. These strip losses result particularly from the sets of brake drums and sets of tension drums which are usually used in known straightening arrangements and which produce the relatively high tensions required for the stretch-bending range. These tensions can only be build up if the coiling reel and the uncoiling reel produce the forward tension and the rearward tension for the sets of tension drums.

The process of stretch-bending straightening is to be understood as an alternating bending under high strip ~ 3 tension. Depending on the strip dimensions and the yield point of, for example, steel strips having thicknesses of 1.0 - 4.0 mm and a width of 1500 mm, the tension for stretch-bending straightening is approximately 8 - 20 tons. Such a tension cannot be produced by the coiling and uncoiling reels because the usual specific coiling tension is 10 - 15 N/mm2.
A particular problem is the non-straightened strip beginning which must be wound into the coil and can only be cut off by the final user of the strip.

Another disadvantage is to be seen in the fact that the respective strip beginning must be newly introduced into the sets of tension drums. This results in substantial time and production losses. Moreover, thick strips can only be introduced by means of a so called pilot strip or a rope.

SUMMARY OF THE INVENTION

Therefore, it is the object of the present invention to provide a straightening arrangement for finite strips, particularly metal strips, of the above-described type, which makes it possible in a simple manner, without time-consuming introduction of the strip and large strip losses,~to coil strips in a discontinuous strip line and to straighten the strip or to straighten and temper-roll the strip.

2 ~

In accordance with the present invention, the above-object is met by arranging in strip travel direction before and following the stretch-bending unit a driver each or a temper-pass stand and a driver.

~ ccordingly, the present invention provides that the stretch-bending unit is arranged between two drivers or between a driver and a temper-pass stand and, in turn, the two drivers or the driver and the temper-pass stand are arranged between the coiling reels and the stretch-bending unit.

The present invention starts from the finding that the driver arranged in strip travel direction behind the stretch-bending unit can be driven as a tension driver and the driver or temper-pass stand arranged in strip travel direction in front of the stretch-bending unit can be used as a brake driver or braking temper-pass stand, respectively, such that, instead of the usually used sets of tension drums and brake drums, only these drivers or the driver and temper-pass stand are required for producing the high tensions required for stretch-bending straightening. In other words, the usually used sets of tension drums and brake drums are replaced by the drivers for the driver and the temper-pass stand.
Moreover, this makes it also possible to produce the high tensions in the stretch-bending range independently of the fact whether the coiling tensions have already been built up ~ fi or not. At any rate, the required high tensions can be produced merely by the adjustable contact pressure force of the driven driver rolls or rolls of the temper-pass stand.
The drivers and, if applicable, the temper-pass stand reduce the strip losses which usually occur in sets of tension drums at the strip beginning and the strip end because these strip losses are reduced to the portion which is without treatment between the tension driver and the stretch-bending unit or the stretch-bending unit and the brake driver or temper-pass stand. In addition, the strip to be treated can be easily introduced into the arrangement by means of the driver or the temper-pass stand and the stretch-bending rolls which are adjustably mounted in the stretch-bending unit, so that significant time and reduction losses no longer occur.
Since, furthermore, the requirements with respect to the planeness of the strips and particularly metal strips have increased, the straightening arrangement according to the present invel1tion makes it possible with simple means, and without time-consuming introduction and great strip losses, to coil, straighten or straighten and temper-roll strips and particularly metal strips in a continuous strip line.

In accordance with another proposal according to the present invention, the driver or temper-pass stand arranged in strip travel direction in front of the stretch-bending unit includes a tension measuring device, for example, a tension measuring roller for controlling the tension of the 2~3~s~3~

driver or of the temper-pass stand. This tension measuring device ~s used for controlling with respect to tension the drive of the brake driver or the temper-pass stand. As a result, the adjusted straightening effect remains constant, even if the coil tensioning means of the coiling reels are switched on or off. The tension driver, on the other hand, is the speed master of the strip line. The drive shafts of the driver and of the temper-pass stand are driven individually by separate drive motors.

The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages attained by its use, reference should be had to the drawing and descriptive matter in which there are illustrated and described preferred embodiments of the invention.

BRIEF DESCRIPTION OF THE DRAWING

In the drawing:

Fig. 1 is a schematic side view of a straightening arrangement according to the present invention with two drivers; and ~ J

Fig. 2 is a schematic side view of the straightening arrangement according to the present invention with a driver and a temper-pass stand.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Figs. 1 and 2 of the drawing each show an arrangement for straightening finite strips 1, particularly metal strips or discontinuously operating strip lines. The arrangement essentially includes a coiling reel 2, an uncoiling reel 3 and a stretch-bending unit ~ arranged between the two reels 2, 3.

AS illustrated in Fig. 1, a driver 5, 6 each is arranged in travel direction of the strip in front of and following the stretch-~ending unit 4. In other words, the stretch-bending unit 4 is arranged between two drivers 5, 6 and the two drivers 5, 6 between the two reels 2, 3. The contact pressure force of the driver rolls 7, 8 is adjustable in order to produce the necessary strip tensions. The adjusting device g is only schematically shown. The drive shafts lo, 11 of the driver rolls 7, 8 are individually'driven by drive motors, not shown. The strip 1 is introduced by means of the drivers 5, 6 and by means of adjustable stretch-bendlng rolls 12 of the stretch-bending unit 4.

Fig. 2 of the drawing shows a straightening arrangement ~hich operates as a stretch-bending straightening and temper-pass line and in which, instead of a driver, a temper-pass stand 13 with driven back-up rolls 14 is arranged in strip travel direction in front of the stretch-bending unit 4. In accordance with the proposal of the invention shown in Fig.
2, already existing temper-pass stands, i.e., two-high or our-high stands, can be converted into a combined stretch-bending and temper-rolling arrangement by providing a driver 6 and a stretch-bending straightening unit 4.

In both embodiments of the present invention, a tension measuring device 15 is provided for the driver 5 or the temper-pass stand 13 arranged in strip travel direction in front of the stretch bending unit 4. The tension measuring device 15 is, for example, a tension measuring roller and serves for controlling the tension of the driver 5 or of the temper roll stand 13. In both cases, the strip losses are indicated by reference characters la at the strip beginning and le at the strip end. The strip ~ravel direction is indicated by an arrow.

While specific embodiments of the invention have been shown and described in detail to illustrate the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.

Claims (6)

1. In a straightening arrangement for finite strips, particularly metal strips, the arrangement including a coiling reel, an uncoiling reel and a stretch-bending unit arranged between the two reels, the strips traveling in the arrangement in a strip travel direction, the improvement comprising a driver being arranged in strip travel direction in front of the stretch-bending unit and a driver being arranged in strip travel direction following the stretch-bending unit.
2. The straightening arrangement according to claim 1, wherein the driver arranged in strip travel direction in front of the stretch-bending unit includes a tension measuring device for controlling the tension of the driver.
3. The straightening arrangement according to claim 2, wherein the tension measuring device is a tension measuring roller.
4. In a straightening arrangement for finite strips, particularly metal strips, the arrangement including a coiling reel, an uncoiling reel and a stretch-bending unit arranged between the two reels, the strips traveling in the arrangement in a strip travel direction, the improvement comprising a temper roll stand being arranged in strip travel direction in front of the stretch-bending unit and a driver being arranged in strip travel direction following the stretch-bending unit.
5. The straightening arrangement according to claim 4, wherein the temper-pass stand includes a tension measuring device for controlling the tension of the temper-pass stand.
6. The straightening arrangement according to claim 5, wherein the tension measuring device is a tension measuring roller.
CA002058691A 1991-02-08 1992-01-02 Arrangement for straightening strips, particulary metal strips Abandoned CA2058691A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4103804.5-14 1991-02-08
DE4103804A DE4103804A1 (en) 1991-02-08 1991-02-08 ALIGNMENT SYSTEM FOR FINAL TAPES, IN PARTICULAR METAL TAPES

Publications (1)

Publication Number Publication Date
CA2058691A1 true CA2058691A1 (en) 1992-08-09

Family

ID=6424629

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002058691A Abandoned CA2058691A1 (en) 1991-02-08 1992-01-02 Arrangement for straightening strips, particulary metal strips

Country Status (4)

Country Link
EP (1) EP0498038B1 (en)
AT (1) ATE99576T1 (en)
CA (1) CA2058691A1 (en)
DE (1) DE4103804A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520541C2 (en) * 1995-06-03 1999-01-14 Bwg Bergwerk Walzwerk Method and device for correcting a rolled metal strip which is bent horizontally in the strip plane, in particular a metal strip with a strip thickness of 0.5 mm to 2.0 mm
US6732561B2 (en) 2002-09-23 2004-05-11 The Material Works, Ltd. Method and apparatus for leveling and conditioning sheet metal
US6814815B2 (en) 2003-04-07 2004-11-09 The Material Works, Ltd. Method of removing scale and inhibiting oxidation in processed sheet metal
US6814089B1 (en) 2003-06-03 2004-11-09 The Material Works, Ltd. Conditioning liquid cleaning and recycling system for sheet metal conditioning apparatus
DE102017202909A1 (en) * 2016-11-07 2018-05-09 Sms Group Gmbh Method and plant for producing a metallic strip

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1518264A (en) * 1966-04-08 1968-03-22 Armco Steel Corp Method of leveling metal strips
DE2537188C3 (en) * 1975-08-21 1978-05-18 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg Method and device for the production of hot strip with improved quality properties
AT345063B (en) * 1976-06-25 1978-08-25 Voest Ag DEVICE FOR MAINTAINING A CERTAIN TENSION EXERCISED ON A METAL STRAP DURING A DIRECTIONAL PROCESS
US4528830A (en) * 1982-06-30 1985-07-16 Sumitomo Metal Industries, Ltd. Method for changing widthwise distribution of thickness of metal strip
DE3635088A1 (en) * 1986-10-15 1988-04-28 Bwg Bergwerk Walzwerk METHOD AND ROLLING MILL FOR PRODUCING METAL STRIP IN A ROLLING PROCESS

Also Published As

Publication number Publication date
EP0498038B1 (en) 1994-01-05
EP0498038A2 (en) 1992-08-12
EP0498038A3 (en) 1992-09-23
DE4103804A1 (en) 1992-08-13
ATE99576T1 (en) 1994-01-15

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Legal Events

Date Code Title Description
FZDE Discontinued