US20080257005A1 - Winding assembly for a rolling mill - Google Patents

Winding assembly for a rolling mill Download PDF

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Publication number
US20080257005A1
US20080257005A1 US12/047,675 US4767508A US2008257005A1 US 20080257005 A1 US20080257005 A1 US 20080257005A1 US 4767508 A US4767508 A US 4767508A US 2008257005 A1 US2008257005 A1 US 2008257005A1
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United States
Prior art keywords
roll
axis
coil
turns
winding
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
US12/047,675
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English (en)
Inventor
Daniele BERSIA
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.)
Fata SpA
Original Assignee
Fata SpA
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
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Application filed by Fata SpA filed Critical Fata SpA
Assigned to FATA S.P.A. reassignment FATA S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BERSIA, DANIELE
Publication of US20080257005A1 publication Critical patent/US20080257005A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
    • B21C47/06—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
    • B21C47/063—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum with pressure rollers only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/3408—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the lateral position of the material
    • B21C47/3425—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the lateral position of the material without lateral edge contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product

Definitions

  • the present invention relates to a winding assembly for a rolling mill.
  • Rolling mills for aluminium produce sheets with a thickness ranging from 8 mm to 5 ⁇ m. Downstream of the rolling mill, the sheet is gathered in a coil by means of a winding assembly.
  • a winding assembly for a rolling mill for aluminium sheets generally comprises the following main components:
  • a winding spool which turns about a first horizontal axis, wound on which is a coil formed by a continuous sheet of metal;
  • an oscillating support carrying the ironing roll and associated to actuator means, which are designed to push the ironing roll against the coil being formed;
  • a pass-line roll which turns about a third axis parallel to the first axis and to the second axis;
  • At least one deflector roll which turns about a fourth axis parallel to the first, second, and third axes and is set between the pass-line roll and the ironing roll.
  • the pass-line roll is tangential to the plane of the sheet coming out of the rolling mill.
  • the pass-line roll is constituted by a simple roll.
  • the pass-line roll is constituted by a flatness-measuring roll, designed to detect possible errors of flatness of the sheet immediately downstream of the rolling mill.
  • the signals provided by the flatness-measuring roll are used for correcting the operating conditions of the rolling mill, according to a technique in itself known in the sector.
  • the deflector roll has the purpose of ensuring that the sheet will have a certain angle of winding with respect to the pass-line roll.
  • the ironing roll has the task of expelling the air between the sheet and the coil being formed.
  • the air that remains trapped between successive layers of the coil produces major problems of flatness of the sheet and, given the same dimensions of the coil, entails a reduction in the useful weight of the coil.
  • the ironing roll is pressed against the coil in a point situated slightly further downstream with respect to the point of tangency between the sheet and the coil.
  • angle of winding is the angle comprised between the radius of the coil passing through the point of tangency between the sheet and the coil and the radius of the coil passing through the point of contact between the ironing roll and the coil.
  • the angle of winding is a very important process parameter for ensuring correct winding of the sheet on the coil.
  • the angle of winding varies as a function of the diameter of the coil.
  • the angle of winding can vary from a minimum of 1.6° when the coil has a diameter of approximately 665 mm up to a value of 7.6° when the coil reaches dimensions in the region of 2000 mm.
  • the object of the present invention is to provide a winding assembly for a rolling mill that will enable the aforesaid drawbacks to be overcome.
  • the purpose of the invention is to provide a winding assembly that will enable control and adjustment of the angle of winding during formation of the coil.
  • this object is achieved by a winding assembly having the characteristics forming the subject of claim 1 .
  • FIG. 1 is a schematic side view of a winding assembly according to the present invention associated to a rolling mill;
  • FIGS. 2 and 3 are side views of the winding assembly according to the present invention in the condition of minimum and maximum diameter of the coil, respectively;
  • FIG. 4 is a plan view of the winding assembly according to the present invention.
  • FIG. 5 is a cross section according to the line V-V of FIG. 3 ;
  • FIG. 6 is a detail at a larger scale of the part designated by the arrow VI of FIG. 5 .
  • the reference number 10 designates as a whole a rolling mill for aluminium sheets, comprising a sturdy framework 12 carrying a pair of rolling rolls 14 and a pair of contrast rolls 16 .
  • a continuous sheet F advances in the direction indicated by the arrow 18 and is compressed by the rolling rolls 14 that produce a reduction of thickness of the sheet F.
  • a winding assembly 20 gathers the sheet F in a coil 22 .
  • the rolling mill 10 has been illustrated in a purely schematic way merely to provide a framework for the present invention.
  • the invention regards specifically the winding assembly 20 , which can be combined with rolling mills of any type.
  • the coil 22 is illustrated with a solid line in the condition of minimum diameter and with a dashed line in the condition of maximum diameter.
  • the coil 22 is wound on a spool 24 , which turns about a first stationary horizontal axis 26 , orthogonal to the plane of representation of FIGS. 1 to 3 .
  • the winding assembly 20 comprises a stationary base 28 , fixed, for example, on the output side of the framework 12 of the rolling mill 10 .
  • the winding assembly 20 comprises an ironing role 30 , which turns about a second axis 32 parallel to the axis of rotation 26 of the spool 24 .
  • the ironing roll 30 is carried by an oscillating structure 34 , which is articulated to the stationary base 28 about an axis 36 parallel to the axis of rotation 32 of the ironing roll 30 .
  • the oscillating structure 34 comprises two arms 38 , which carry the ends of the ironing roll 26 in such a way that they can turn.
  • the two arms 38 are fixed to the opposite ends of a shaft 40 articulated to the stationary base 28 about the axis 36 .
  • the two arms 38 of the oscillating structure 34 have a rocker conformation and have appendages 42 , which co-operate with respective hydraulic actuators 44 articulated between the appendages 42 and the stationary base 38 .
  • the actuators 44 apply to the oscillating structure 34 a torque in the direction indicated by the arrow 46 in FIGS. 2 and 3 . Said torque keeps the ironing roll 30 pressed against the coil 22 .
  • the point of contact between the ironing roll 30 and the coil 22 is slightly displaced with respect to the point of tangency between the sheet F and the coil 22 .
  • angle of winding is the angle comprised between the radius of the coil R 1 passing through the point of tangency of the sheet and the radius of the coil R 2 passing through the point of contact between the ironing roll 30 and the coil 22 .
  • the point of tangency between the sheet and the coil and the point of contact between the ironing roll and the coil are defined by She intersection of the line of tangency between the sheet and the coil and between the line of contact between the ironing roll 30 and the coil 22 with a plane orthogonal to the axis of rotation 26 of the coil 22 .
  • the winding assembly 20 comprises a pass-line roll 48 carried by the stationary base 28 in such a way that it turns about a third axis 50 parallel to the first axis 26 and the second axis 30 .
  • the pass-line roll 48 is constituted by a flatness-measuring roll. This roll is in itself known and is typically constituted by a plurality of sections set side by side ( FIG. 4 ), each of which supplies a signal indicating the pressure applied by the sheet F.
  • the signals supplied by the different sections of the roll 48 enable high-precision control of the flatness of the sheet F at output from the rolling mill 10 .
  • the information supplied by the flatness-measuring roll 48 is used, in a way in itself known, for adjusting the operating parameters and the conditions of operation of the rolling mill 10 so as to correct instantaneously possible errors of flatness of the sheet F.
  • the pass-line roll 48 could be constituted by a simple roll.
  • the winding assembly 20 comprises a deflector roll 52 set, with reference to the direction of advance of the sheet F, between the pass-line roll 48 and the ironing roll 30 .
  • the deflector roll 52 turns about a fourth axis 54 parallel to the axes 26 , 32 and 50 .
  • the deflector roll 52 has the purpose of deflecting the sheet F downstream of the pass-line roll 48 so as to ensure that the sheet F will have an angle of winding with respect to the pass-line roll 48 .
  • the axis of rotation 54 of the deflector roll 52 is mobile parallel to itself, and the position of said axis is adjustable as a function of the diameter of the coil 22 .
  • the adjustment of the position of the axis 54 of the deflector roll 52 enables control and adjustment of the angle of winding.
  • the angle of winding is no longer an uncontrollable parameter depending only upon the geometry of the winding assembly but becomes a parameter adjustable by varying the position of the deflector roll.
  • FIGS. 2 and 3 show two positions of the deflector roll 52 corresponding, respectively, to the position of minimum diameter and that of maximum diameter of the coil 22 .
  • the deflector roll 52 is displaced in a progressive and continuous way during formation of the coil 22 so as to maintain the angle of winding constant or else so as to vary the angle of winding as a function of the diameter of the coil according to a pre-set law.
  • the winding assembly according to the present invention could also be provided with two deflector rolls, set in series with respect to one another along the path of the sheet F.
  • the deflector roll immediately adjacent to the pass-line roll 48 which turns about a fixed axis, would have the purpose of keeping the angle of winding of the sheet constant on the pass-line roll 48 , whilst the deflector roll 52 immediately adjacent to the ironing roll 32 would be mobile for controlling the angle of winding.
  • the deflector roll 52 is carried in such a way that it turns about its axis of rotation 54 by a pair of end bearings 56 .
  • the bearings 56 are carried by two slides 58 that slidingly engage respective guides 60 fixed with respect to the stationary base 28 .
  • the guides 60 are rectilinear and orthogonal with respect to the axis of rotation 54 of the deflector roll 52 .
  • the guides 60 extend in a vertical direction.
  • a flange 62 carrying an electric motor 64 , which drives the deflector roll 52 in rotation about the axis of rotation 54 by means of a belt transmission 66 .
  • the two slides 58 are fixed to one another by means of a cross-member 68 that is associated to an actuation device 70 .
  • the actuation device 70 comprises an electric motor 72 numerically controlled by an electronic control unit 74 , which, among other things, receives information regarding the diameter of the coil 22 being formed.
  • the motor 72 is connected to two transmission devices 76 carried by a fixed beam 78 .
  • the two transmission devices 76 convert the rotary movement imparted by the motor 72 into a linear movement of respective output members 80 connected to the cross-member 68 .
  • the two transmission devices 76 are connected together by means of a shaft 82 .
  • the actuation device 70 is moreover provided with a stabilization mechanism designed to guarantee that the cross-member 68 moves remaining always parallel to itself.
  • Said stabilization mechanism can be obtained by means of a pair of rack devices 86 including respective racks 87 fixed to the cross-member 68 .
  • the two rack devices 86 are provided with respective toothed gears that are fixed to one another by means of a tubular shaft 88 set coaxially on the outside with respect to the shaft 82 that connects the actuation devices 76 to one another.
  • the electronic control unit 74 controls the electric motor 72 as a function of the diameter of the coil 22 .
  • the actuation device 70 controls the movement of the deflector roll 72 in the direction indicated by the arrow 90 in FIG. 5 .
  • the deflector roll 52 displaces parallel to itself, with a speed of movement correlated to the speed with which the diameter of the coil 22 increases.
  • the displacement of the deflector roll 52 enables control of the angle of winding (defined as the angle between the radii R 1 , R 2 of the coil 22 ).
  • the angle of winding can be kept constant or else can be varied with a pre-set law as a function of the diameter of the coil 22 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Metal Rolling (AREA)
  • Winding Of Webs (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
US12/047,675 2007-04-20 2008-03-13 Winding assembly for a rolling mill Abandoned US20080257005A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07425238.8 2007-04-20
EP07425238A EP1982778B1 (en) 2007-04-20 2007-04-20 Winding assembly for a rolling mill

Publications (1)

Publication Number Publication Date
US20080257005A1 true US20080257005A1 (en) 2008-10-23

Family

ID=38268794

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/047,675 Abandoned US20080257005A1 (en) 2007-04-20 2008-03-13 Winding assembly for a rolling mill

Country Status (7)

Country Link
US (1) US20080257005A1 (zh)
EP (1) EP1982778B1 (zh)
JP (1) JP2008264878A (zh)
CN (1) CN101288882A (zh)
AT (1) ATE435711T1 (zh)
DE (1) DE602007001520D1 (zh)
ES (1) ES2327075T3 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105458006A (zh) * 2016-01-06 2016-04-06 安徽众源新材料股份有限公司 一种铜箔复合叠轧装置及其加工工艺

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102009086A (zh) * 2010-10-27 2011-04-13 镇江鼎胜铝业股份有限公司 压平辊
CN103357666A (zh) * 2013-07-26 2013-10-23 江苏亨特宏业重工有限公司 铝箔轧机熨平辊转换装置
JP6564209B2 (ja) * 2015-03-17 2019-08-21 Ｊｆｅスチール株式会社 鋼帯の冷間圧延設備および製造方法
WO2021150315A1 (en) 2020-01-22 2021-07-29 Novelis Inc. Sensing and offsetting the force of events in a coil forming operation
CN115673098B (zh) * 2022-08-25 2024-01-05 徐州工程学院 一种特斯拉阻火芯加工装置及方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073543A (en) * 1959-11-05 1963-01-15 Davey And United Engineering C Apparatus for coiling and uncoiling strip material
US4096724A (en) * 1977-05-27 1978-06-27 General Motors Corporation Method of coiling a flat strip
US4158301A (en) * 1977-09-26 1979-06-19 Smith Jack C Method and apparatus for decoiling sheet material
US4249406A (en) * 1978-09-05 1981-02-10 Anderson Frohman C Line pipe forming apparatus and method
US4442690A (en) * 1981-08-24 1984-04-17 Voest-Alpine Aktiengesellschaft Coiler-furnace combination
US4726210A (en) * 1985-06-11 1988-02-23 Elpatronic, Ag Method and apparatus for making can bodies from sheets
US4761983A (en) * 1987-08-07 1988-08-09 International Rolling Mill Consultants, Inc. Method and apparatus for winding material on a drum
US6588245B2 (en) * 2001-08-15 2003-07-08 General Electric Co. Roll gap control for coiler
US7059161B2 (en) * 2001-06-30 2006-06-13 Sms Demag Ag Thin-strip coiler comprising a flatness measuring roll
US7454938B2 (en) * 2004-10-12 2008-11-25 Siemens Vai Metals Technologies Sas Method and device for rolling up a strip

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58196115A (ja) * 1982-05-11 1983-11-15 Nippon Steel Corp 脆い帯鋼を圧延する装置
JPH0645046B2 (ja) * 1985-02-14 1994-06-15 株式会社日立製作所 カロ−ゼル型巻取装置
FR2832084B1 (fr) * 2001-11-12 2004-05-14 Vai Clecim Procede et dispositif de stabilisation du defilement a grande vitesse d'un produit en bande

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073543A (en) * 1959-11-05 1963-01-15 Davey And United Engineering C Apparatus for coiling and uncoiling strip material
US4096724A (en) * 1977-05-27 1978-06-27 General Motors Corporation Method of coiling a flat strip
US4158301A (en) * 1977-09-26 1979-06-19 Smith Jack C Method and apparatus for decoiling sheet material
US4249406A (en) * 1978-09-05 1981-02-10 Anderson Frohman C Line pipe forming apparatus and method
US4442690A (en) * 1981-08-24 1984-04-17 Voest-Alpine Aktiengesellschaft Coiler-furnace combination
US4726210A (en) * 1985-06-11 1988-02-23 Elpatronic, Ag Method and apparatus for making can bodies from sheets
US4761983A (en) * 1987-08-07 1988-08-09 International Rolling Mill Consultants, Inc. Method and apparatus for winding material on a drum
US7059161B2 (en) * 2001-06-30 2006-06-13 Sms Demag Ag Thin-strip coiler comprising a flatness measuring roll
US6588245B2 (en) * 2001-08-15 2003-07-08 General Electric Co. Roll gap control for coiler
US7454938B2 (en) * 2004-10-12 2008-11-25 Siemens Vai Metals Technologies Sas Method and device for rolling up a strip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105458006A (zh) * 2016-01-06 2016-04-06 安徽众源新材料股份有限公司 一种铜箔复合叠轧装置及其加工工艺

Also Published As

Publication number Publication date
ES2327075T3 (es) 2009-10-23
DE602007001520D1 (de) 2009-08-20
EP1982778B1 (en) 2009-07-08
CN101288882A (zh) 2008-10-22
ATE435711T1 (de) 2009-07-15
JP2008264878A (ja) 2008-11-06
EP1982778A1 (en) 2008-10-22

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AS Assignment

Owner name: FATA S.P.A., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BERSIA, DANIELE;REEL/FRAME:020647/0399

Effective date: 20080115

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION