EP2475473B1 - Machine de planage a rouleaux multiples - Google Patents

Machine de planage a rouleaux multiples Download PDF

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Publication number
EP2475473B1
EP2475473B1 EP09783580A EP09783580A EP2475473B1 EP 2475473 B1 EP2475473 B1 EP 2475473B1 EP 09783580 A EP09783580 A EP 09783580A EP 09783580 A EP09783580 A EP 09783580A EP 2475473 B1 EP2475473 B1 EP 2475473B1
Authority
EP
European Patent Office
Prior art keywords
cassette
levelling
contact surface
machine according
leveling
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.)
Active
Application number
EP09783580A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2475473A1 (fr
Inventor
Jean-Pierre Chazal
Bernard Dumas
Vincent Philippaux
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.)
Clecim SAS
Original Assignee
Siemens VAI Metals Technologies SAS
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 Siemens VAI Metals Technologies SAS filed Critical Siemens VAI Metals Technologies SAS
Priority to PL09783580T priority Critical patent/PL2475473T3/pl
Priority to EP09783580A priority patent/EP2475473B1/fr
Publication of EP2475473A1 publication Critical patent/EP2475473A1/fr
Application granted granted Critical
Publication of EP2475473B1 publication Critical patent/EP2475473B1/fr
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Classifications

    • 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
    • B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies

Definitions

  • the invention relates to a machine for flattening strips or thick metal plates which will subsequently be generically called “strips" according to the preamble of claim 1 and a planing cassette according to the preamble of claim 15.
  • strips a machine for flattening strips or thick metal plates which will subsequently be generically called "strips" according to the preamble of claim 1 and a planing cassette according to the preamble of claim 15.
  • strips a machine for flattening strips or thick metal plates which will subsequently be generically called "strips" according to the preamble of claim 1 and a planing cassette according to the preamble of claim 15.
  • strips according to the preamble of claim 1
  • planing cassette according to the preamble of claim 15.
  • planing devices are used for the purpose of eliminating flatness defects of the strips after hot rolling or cold rolling. Indeed, for example after the hot rolling, cooling and conditioning phases, the rolled products may have non-developable flatness defects, such as defects called long or long center edges, or even developable flatness defects. , such as tile defects. These geometric defects visibly affect the rolled products.
  • multiple roll planers arranged to interlock are used to determine a corrugated path of the web which is thus subjected to bending effects in alternate directions.
  • a planing installation of a metal strip or plate generally comprises a lower leveling cassette and an upper leveling cassette, each equipped with a plurality of leveling rollers which are in direct contact with the strip. These leveling rollers are generally supported by support rollers.
  • These two leveling cassettes are included in the structure of the planer which comprises vertical beams secured in their lower part by a generally fixed bed base and, in the upper part, by horizontal upper beams.
  • the lower cassette is supported by the lower and the upper cassette by a pressure frame to which it is fixed by locks.
  • the lower cassette is fixed and the upper cassette can move vertically to adjust the gap of the leveling rollers and thereby determine the corrugated path of the tape.
  • This separation and the resumption of efforts the cassettes are separated by the strength of the belt by means of hydraulic clamping cylinders supported on one side on the upper beams and on the other side on the pressure frame.
  • a motorized drive system enables the rollers to be rotated and, by friction, to advance the belt at a predetermined speed. It comprises at least one motor driving at least one speed reducer which actuates at the required speed at least one gear box which distributes the rotational torques to the different upper and lower leveling rollers via connected extensions of a side to the outputs of the gearbox and, on the other side, to the end journals of the rollers.
  • the figure 1 is a schematic view of a leveling machine of the prior art whose upper cassette 5a is carried by a pressure frame 4 movable vertically with the aid of hydraulic cylinders resting on horizontal upper crosspieces 3a, 3b secured to the beams vertical.
  • the machine is composed of a fixed lower bed base 1 supporting a lower leveling cassette 5b and integral with two pairs of vertical beams 2a, 2b.
  • the upper part of each beam 2a, 2b is connected to a horizontal cross member 3a, 3b.
  • a pressure frame 4 guided in vertical translation between the beams 2 is forced on the upper cassette 5a by means of four clamping cylinders 6.
  • Each cassette 5a, 5b comprises a plurality of leveling rollers 51a, 51b supported by bearings 52a, 52b and supported by support rollers 53a, 53b themselves carried by bearings 54a, 54b.
  • the leveling machine further comprises return cylinders 8 for moving the pressure frame 4 and thus the upper cassette 5a upwards.
  • the leveling machine shown in FIG. figure 1 is provided with correction cylinders 7 interposed between the pressure frame 4 and the upper leveling cassette 5a.
  • Fastening devices 9 ensure the attachment of the upper cassette of planing 5a on the pressure frame while allowing the displacements of the upper leveling cassette 5a caused by the correction cylinders 7.
  • the document EP 0 570 770 proposes the use of jacks arranged between the upper leveling rollers and the upper pressure frame of a leveling machine. These jacks allow the compensation of the bending of the leveling rollers occurring during the passage of the web of material between the rollers. These compensation cylinders act in concert with cylinders for moving an upper frame whose upper leveling cassette is secured.
  • the leveling machine is also equipped with a plurality of sensors measuring the deformation of the rollers and providing information to a computer which controls the compensation cylinders and the jacks for moving the frame.
  • the document JP A 2000 326012 also discloses a leveling machine having a plurality of compensation jacks installed between an upper frame and upper rollers of a leveling machine. Other cylinders supported on horizontal sleepers modify the position of the upper leveling rollers by acting on the upper bed of the leveling machine.
  • the document US 5,461,895 discloses a leveling machine which to compensate for the longitudinal bending of the leveling rollers comprises a combination of pressure cylinders acting in the middle of the upper cassette and traction cylinders acting at its ends.
  • leveling machines comprise a stack of superimposed layers formed of an upper cassette, bending correction cylinders, the pressure frame, main clamping cylinders, horizontal top rails.
  • a thick striping machine of great width can reach a mass of more than six hundred tons for a height greater than ten meters.
  • a pressure frame alone may have a mass of more than seventy tonnes. It is therefore important to minimize the weight and bulk of the planing machines.
  • the present invention aims to solve the problems mentioned above and aims in particular to limit the stack of structural members and cylinders to limit the height of the machine and, in particular, the length of the vertical beams. It also aims to provide a leveling machine having a limited volume and mass in comparison with known leveling machines while performing the same functions and in particular by allowing compensation of the bending of planing cassettes caused by the advancement of the material. to hover.
  • the value of the maximum thickness of the cassette may be between 1.5 and 4 times the value of the minimum thickness and may preferably be between 2 and 2.5 times.
  • the leveling machine according to the invention therefore has a total height limited compared to known machines, in addition unlike prior art planing machines it does not include conventional pressure frame or horizontal crosspieces, which allows the economy of tens of tons of structure and thus a lightening of the planing machine according to the invention.
  • the invention also allows the removal of lifting cylinders of the pressure frame and the upper cassette, a gain that is not negligible because these cylinders, generally in number of four, must be strong enough to lift a mass of up to one hundred tons.
  • their stroke is generally important to allow the disassembly of the clamping jacks.
  • These are very heavy cylinders that require the installation of high pressure hydraulic circuits and a large amount of oil. The removal of all these devices has the additional effect of lightening the mass of the planing machine several tens of additional tons.
  • the leveling machine according to the invention shown in figure 2 comprises a lower bed base 1, fixed during use of the leveling machine, supporting a lower leveling cassette 5b.
  • Two pairs of vertical beams 2a, 2b extend upwards from the lower bed base 1 while being fixed rigidly thereto.
  • each pair of vertical beams 2a, 2b is located on one side of a vertical imaginary plane passing through the longitudinal axis of movement P (visible on the figure 4 ) of the material web.
  • An upper bed base 11 fixed is rigidly secured to the upper end of each of the vertical beams 2a, 2b.
  • the leveling machine further comprises clamping cylinders 10 fixed on the one hand to the fixed upper base 11 and in contact on the other hand with an upper face of the top leveling cassette 5a.
  • the clamping cylinders 10 By unfolding, the clamping cylinders 10 bear on the bed base 11 and force the rollers 51a of the top leveling cassette 5a against the material to be hovered.
  • the clamping jacks thus ensure, on the one hand, that the rollers 51a of the upper leveling cassette are brought closer to the rollers 51b of the lower leveling cassette 5b and, on the other hand, as a function of their relative vertical displacement, compensate for the bending of the upper leveling cassette 5a caused by the separation force due to the passage of the band to be hovered.
  • Fastening means 9 secure the upper leveling cassette 5a on the bed base 11 while allowing the vertical displacements of the upper leveling cassette 5a caused by the clamping jacks 10.
  • the figure 3 shows an embodiment of the attachment means.
  • the upper leveling cassette 5a carrying the leveling rollers 51a and their bearings 52a is hooked to the upper bed 11 by means of two jacks 111 supported, on the drive side of the rollers, by flanges 113 of the upper bed base. 11.
  • Each cylinder head 111 is engaged in a retaining hook 56a of the upper leveling cassette 5a.
  • each cylinder head 111 may comprise a cylindrical retaining portion 111b with an axis perpendicular to the axis of the rod 111a of the cylinder 111.
  • the upper leveling cassette 5a is also attached to the upper beam 11 by the intermediate of two other cylinders 112 supported on the opposite side to the drive of the rollers, by L-shaped parts 114 rotatable relative to the fixed upper bed base 11.
  • Each cylinder head 112 is engaged in a retaining hook 56b of the upper leveling cassette 5a.
  • each cylinder head 112 may comprise a cylindrical retaining portion 112b with an axis perpendicular to the axis of the rod 112a of the cylinder 112.
  • each cylindrical retaining portion 111b, 112b may comprise two vertical stops located on either side of each retaining hook 56a and intended to block the upper leveling cassette 5a in horizontal translation.
  • the jacks 111, 112 thus support the upper leveling cassette 5a while accompanying the relative displacements between the upper leveling cassette 5a and the upper beam 11 under the action of the jacks 10.
  • Each movable piece 114 is fixed to an axis of the bed base 11 and can rotate about this axis, each axis being carried by a flange 1100 of the bed base 11.
  • At least one additional jack 115 capable of pivoting at least one moving part 114 s' extends between one end of the moving part 114 and another flange 1200 of the bed base 11.
  • the rods of the clamping cylinders 10 extend until the upper leveling cassette 5a rests on the lower leveling cassette 5b.
  • the rods 111a and 112a of the holding cylinders 111, 112 follow the movement of the upper leveling cassette 5a downwards.
  • the rods 111a and 112a of the holding cylinders 111, 112 continue their downward stroke until the release of each retaining hook 56a.
  • the additional cylinder 115 retracting then rotates the support 114 which retracts the cylinder 112 upwards and the upper leveling cassette can be extracted in the direction of the arrow 1300, the opposite side to the drive of the planing rollers 51 at.
  • the pressure frame is guided between the vertical beams and the upper leveling cassette is attached to it by means of devices capable of tracking the movements of the cylinders. bending correction.
  • the upper cassette is not guided between the vertical beams or between amounts of the lower cassette .
  • the absence of a pressure frame allows the guide of the cassette itself between the vertical beams or between amounts of the lower cassette, which greatly improves the accuracy of its movements.
  • the figure 4 shows an embodiment of the guidance system of planing crews between the beams 2a and 2b. It will be noted that the figure 4 is a schematic sectional view of the leveling machine made at the bearings 52a and 52b, in a plane parallel to an imaginary vertical plane passing through the longitudinal axis of travel of the strip of material.
  • each beam 2a, 2b has an internal vertical contact surface 21a intended to cooperate with another contact surface for translational guidance of at least one leveling cassette 5a, 5b of the leveling machine.
  • the lower leveling cassette 5b comprises, for its guidance out of the leveling machine during assembly and disassembly operations, the vertical uprights 55b extending upwards from the base of the lower cassette 5b.
  • Each upright 55b has an outer vertical surface 59 coming into contact with an inner vertical surface 21a of one of the beams 2a, 2b so as to ensure precise positioning and to guide in translation the bottom leveling cassette 5b.
  • the amounts 55b and the lower leveling cassette 5b are thus linked by a slide connection.
  • the two contact surfaces 59 and 21a extend at least partially opposite each other.
  • each amount 55b of the lower leveling cassette 5b is positioned so as to serve as a guide in translation to the upper cassette of planing 5a.
  • each amount of the lower leveling cassette 5b also has an inner vertical surface 57b contacting an outer surface 55a of the upper leveling cassette.
  • the contact surfaces 55a and 57b extending at least partially facing each other when the leveling machine is fully assembled, cooperate to guide in translation the top leveling cassette 5a relative to the cassette lower leveling 5b. Due to the frame of the upper leveling cassette 5a by the uprights 55b, the lower and upper leveling cassettes are thus linked by a slide connection which ensures their relative positioning with great accuracy.
  • each outer contact surface 55a of the upper leveling cassette may be slightly curved. This allows inclined positioning of the upper cassette 5a relative to the lower cassette 5b between the input side of the web between the leveling rolls and the output side.
  • each of the uprights 55b of the lower leveling cassette 5b has at its upper end a positioning pin 58b for receiving a support 57a of the upper leveling cassette 5a.
  • each positioning pad 58b receives a support a support 57a which ensures the joining of the two cassettes.
  • the lower leveling cassette 5b does not include uprights 55b and the upper leveling cassette is directly guided in vertical translation by the beams 2a, 2b of the leveling machine.
  • each outer contact surface 55a of the upper leveling cassette 5a cooperates with an inner vertical contact surface 21a of one of the beams 2a, 2b.
  • the lower leveling cassette 5a is therefore connected to the uprights 2a, 2b of the leveling machine by a sliding connection.
  • the contact surfaces 21a, 56b, 57b and 55a may be coated with a wear material promoting the sliding of parts relative to each other as hardened steel plates superficially.
  • the clamping jacks 10 In order for the clamping jacks 10 to play their role of correcting the bending of the leveling rolls correctly, they have the advantage of being at least six to act between the upper bed base 11 and the upper cassette 5a. As shown on Figures 2 to 5 , the clamping cylinders 10 are arranged in line in the direction of the longitudinal axis of the rollers. In the embodiment of the figures the leveling machine comprises two lines of three clamping cylinders 10 each. A first line of three clamping jacks 10 acts on the side of the tape entrance in the upper leveling cassette 5a while another line of clamping jacks acts on the output side of the leveling cassette, as schematized on the figure 4 .
  • An additional condition for the smooth operation of the roll bending correction is the deformation capacity of the upper leveling cassette in the direction of the longitudinal axis of the rollers. This condition is fulfilled without difficulty for the planing of the thick strips which causes very great efforts of separation of the upper and lower cassettes. In the case of thinner strips, it may be necessary to adjust the shape of the upper leveling cassette to reduce its inertia to bending.
  • the figure 5 gives an example of a planing upper cassette having an increased bending deformation capacity compared to the prior planing upper cassettes. It can also be said that the lower leveling cassette 5a shown in FIG. figure 5 has a decreased deformation inertia compared to the upper leveling cassettes of the prior art.
  • the thickness e of the upper leveling cassette 5a varies between a maximum value e1 and a minimum value e2.
  • Each bearing surface of the clamping jacks 10 is located in a zone z1 where the thickness e of the upper leveling cassette 5a is maximum so as to ensure maximum resistance of the upper leveling cassette 5a to the clamping forces and bending correction transmitted by the clamping cylinders 10.
  • the length l 1 of the of each zone of maximum thickness z1 is at least equal to the diameter of the end 10a of the cylinder 10 with which it is in contact.
  • zones z2 of minimum thickness e2 inserted between zones z1 of thickness maximum allow to reduce the inertia to the deformation of the upper casette 5a and thus to obtain a fast and effective bending correction.
  • These zones z2 have a length l 2 less than the length l 1 .
  • each zone z1 of maximum thickness is provided, two at the ends of the upper leveling cassette 5a and three in the bearing portions of the upper leveling cassette 5a cooperating with the clamping cylinders 10. These zones z1 of thickness constant maximum e1 are separated by three zones z2 of constant minimum thickness e2 favoring the bending of the entirety of the upper leveling cassette 5a.
  • the upper leveling cassette thus has in the plane of section a section in the form of saw teeth truncated in their upper and lower parts.
  • the maximum thickness may be between 1.5 and 4 times the value of the minimum thickness and preferably may have a value of between 2 and 2.5 times.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Machine Tool Units (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP09783580A 2009-09-09 2009-09-30 Machine de planage a rouleaux multiples Active EP2475473B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL09783580T PL2475473T3 (pl) 2009-09-09 2009-09-30 Prostownica z wieloma walcami
EP09783580A EP2475473B1 (fr) 2009-09-09 2009-09-30 Machine de planage a rouleaux multiples

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09290685 2009-09-09
PCT/EP2009/062659 WO2011029485A1 (fr) 2009-09-09 2009-09-30 Machine de planage a rouleaux multiples
EP09783580A EP2475473B1 (fr) 2009-09-09 2009-09-30 Machine de planage a rouleaux multiples

Publications (2)

Publication Number Publication Date
EP2475473A1 EP2475473A1 (fr) 2012-07-18
EP2475473B1 true EP2475473B1 (fr) 2012-12-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09783580A Active EP2475473B1 (fr) 2009-09-09 2009-09-30 Machine de planage a rouleaux multiples

Country Status (12)

Country Link
US (1) US9126250B2 (enrdf_load_stackoverflow)
EP (1) EP2475473B1 (enrdf_load_stackoverflow)
JP (1) JP2013503752A (enrdf_load_stackoverflow)
KR (1) KR101606237B1 (enrdf_load_stackoverflow)
CN (1) CN102481611B (enrdf_load_stackoverflow)
BR (1) BR112012005193B1 (enrdf_load_stackoverflow)
ES (1) ES2401979T3 (enrdf_load_stackoverflow)
IN (1) IN2012DN02039A (enrdf_load_stackoverflow)
PL (1) PL2475473T3 (enrdf_load_stackoverflow)
RU (1) RU2518828C2 (enrdf_load_stackoverflow)
SM (1) SMT201300037B (enrdf_load_stackoverflow)
WO (1) WO2011029485A1 (enrdf_load_stackoverflow)

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CN104384246A (zh) * 2014-09-30 2015-03-04 巢湖广丰金属制品有限公司 一种带钢精细整形自动控制系统和方法
EP2881187A1 (de) * 2013-12-05 2015-06-10 Arku Maschinenbau Gmbh Walzenrichtmaschine sowie Verfahren zum Inspizieren, Warten und Instandhalten einer Walzenrichtmaschine
WO2017013099A1 (de) * 2015-07-22 2017-01-26 Sms Group Gmbh Anlage und verfahren zum beseitigen von planheitsfehlern eines metallischen flachprodukts

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JP6440454B2 (ja) * 2014-10-30 2018-12-19 日本発條株式会社 板状ワークの反り矯正装置と、反り矯正方法
CN105170722A (zh) * 2015-10-08 2015-12-23 扬中中科维康智能科技有限公司 一种大型折弯机载荷时上下模的挠性补偿方法
CN108405643A (zh) * 2018-02-08 2018-08-17 嘉善翱鹰五金制品厂 一种合页挤压成型装置
CN108453193A (zh) * 2018-02-08 2018-08-28 嘉善翱鹰五金制品厂 一种用于合页生产的固定装置
CN108480410A (zh) * 2018-02-08 2018-09-04 嘉善翱鹰五金制品厂 一种用于合页生产的挤压机构
CN108637106A (zh) * 2018-07-12 2018-10-12 无锡新奇生电器有限公司 一种圆钢折弯组合模
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CN111531035B (zh) * 2020-05-09 2021-02-12 佛山市顺德区新越精密五金有限公司 一种金属件矫形模具
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2881187A1 (de) * 2013-12-05 2015-06-10 Arku Maschinenbau Gmbh Walzenrichtmaschine sowie Verfahren zum Inspizieren, Warten und Instandhalten einer Walzenrichtmaschine
CN104384246A (zh) * 2014-09-30 2015-03-04 巢湖广丰金属制品有限公司 一种带钢精细整形自动控制系统和方法
WO2017013099A1 (de) * 2015-07-22 2017-01-26 Sms Group Gmbh Anlage und verfahren zum beseitigen von planheitsfehlern eines metallischen flachprodukts
CN107921501B (zh) * 2015-07-22 2020-10-20 Sms集团有限公司 用于消除金属的扁平产品的平整度缺陷的设备和方法
US11179759B2 (en) 2015-07-22 2021-11-23 Sms Group Gmbh System and method for removing flatness faults from a metal flat product

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ES2401979T3 (es) 2013-04-25
KR101606237B1 (ko) 2016-03-24
PL2475473T3 (pl) 2013-05-31
RU2518828C2 (ru) 2014-06-10
BR112012005193B1 (pt) 2019-10-22
CN102481611B (zh) 2015-10-21
US20120174644A1 (en) 2012-07-12
KR20120060884A (ko) 2012-06-12
SMT201300037B (it) 2013-05-06
WO2011029485A1 (fr) 2011-03-17
JP2013503752A (ja) 2013-02-04
RU2012113625A (ru) 2013-10-20
BR112012005193A2 (pt) 2016-03-08
US9126250B2 (en) 2015-09-08
IN2012DN02039A (enrdf_load_stackoverflow) 2015-08-21
CN102481611A (zh) 2012-05-30
EP2475473A1 (fr) 2012-07-18

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