EP1552892A1 - Vorrichtung zum Richten von Metallbändern - Google Patents

Vorrichtung zum Richten von Metallbändern Download PDF

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Publication number
EP1552892A1
EP1552892A1 EP05300003A EP05300003A EP1552892A1 EP 1552892 A1 EP1552892 A1 EP 1552892A1 EP 05300003 A EP05300003 A EP 05300003A EP 05300003 A EP05300003 A EP 05300003A EP 1552892 A1 EP1552892 A1 EP 1552892A1
Authority
EP
European Patent Office
Prior art keywords
active cylinder
support
cylinder
leveling
machine according
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.)
Granted
Application number
EP05300003A
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English (en)
French (fr)
Other versions
EP1552892B1 (de
Inventor
André Mondiere
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
VAI Clecim SA
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 VAI Clecim SA filed Critical VAI Clecim SA
Publication of EP1552892A1 publication Critical patent/EP1552892A1/de
Application granted granted Critical
Publication of EP1552892B1 publication Critical patent/EP1552892B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D1/05—Stretching combined with rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally

Definitions

  • the subject of the invention is a leveling machine that can be used, in particular, in a planing installation under tension of a band metal and also covers the process used.
  • a machine of planing includes, in general, a number of cylinders rotatably mounted about axes orthogonal to a scrolling direction of the band to be hovered and offset longitudinally and vertically, from way to define a wavy path of the band which, furthermore, is put under traction and thus undergoes tensile-bending effects in opposite directions allowing to homogenize the constraints.
  • a machine comprises, inside a frame not shown in FIG.
  • such a machine can comprise, for example, two flexure units F1, F2, each comprising a upper leveling board E 'and a lower crew E, a unit flexion T carrying a roller called “corrector tile” adjustable vertically by a mechanical system and often another unit of bending carrying a "hanger” or decambering correction roll.
  • Each leveling crew comprises a transverse frame, vertically movable in the frame and carrying a leveling cylinder, called active cylinder, rotatably mounted about an axis transverse to the scroll direction.
  • active cylinder For planing, the active cylinder is weak diameter, and must therefore rely on support organs consist, in most cases, of two intermediate rollers resting themselves in three rows of pebbles.
  • the active planing cylinders must have a fairly small diameter and therefore rotate at a very high speed, which leads to wear relatively fast of their external faces. Active cylinders and, possibly, the intermediate rollers must therefore be replaced periodically.
  • the coils are butt welded to the entrance of the line, the band being cut in coils at the exit.
  • of the accumulators of bands are placed, respectively, upstream and downstream to ensure a constant speed scrolling of the band in a central processing section during the stop required for entry for welding or outgoing for shearing.
  • the planers are, normally installed in this center section at a speed substantially constant in order to obtain the desired regularity of quality parameters of the product.
  • the welding between two successive coils constitutes generally, an extra thickness that may deteriorate the cylinders of planing.
  • the set of active cylinders, intermediate rollers and support rollers is then again driven by friction when berthing equipment on the tape and inevitably results in slip due to rotational inertia of the various cylinders and rollers for a few seconds that can, however, correspond to several tens of meters of tape, given the speed of scrolling.
  • JP-A-63-149017 to give in advance to the active cylinder, in the position away from the planing crew, a corresponding angular velocity substantially at the speed of the tape, allowing avoid skating at the time of docking.
  • the document JP-A-63149017 provides for rotating the central row of support rollers, the latter being mounted on a spline shaft connected to a motor by a clutch. The rotation movement is then transmitted by friction to the intermediate rollers and then to the active cylinder, the speed of rotation of the driven rollers being adjusted so as to give to the active cylinder an angular velocity corresponding to the speed of tape, which avoids skating when docking.
  • the active cylinder must be carried at its ends by two bearings suspended from the chassis of the crew by springs that pull up the active cylinder in order to apply it on the intermediate rollers and the support rollers.
  • the springs are connected to the bearings by removable hooks.
  • the angular velocity of the support rollers on which is applied the torque must be adjusted according to the ratio of diameters of said rollers, intermediate rollers and active cylinder so that the angular velocity of the latter matches exactly at the tape speed.
  • the diameters of these different organs may vary slightly due to wear and it This must be taken into account when adjusting the angular speeds.
  • this wear is not evenly distributed over the length of the cylinders and so there may be a slight difference in diameter and, by consequently, of peripheral speed between the successive rollers of the row driven in rotation. This difference leads to increased wear certain parts of the intermediate rollers and active rollers which can result in defects on the tape. The objective sought risk of not being reached.
  • the invention overcomes these various disadvantages by a new provision allowing, by very simple means, to drive for sure the active cylinders at an angular velocity corresponding to the scroll speed of the product, while maintaining a possibility of dismounting and reassembly easy and fast cylinders assets and, where appropriate, intermediate rollers.
  • the invention therefore applies, in a general way, to a machine planing system comprising at least two leveling crews placed both sides of the strip and each comprising an active cylinder and a set of support members rotatably mounted around their axes on a transverse frame, the assembly being movable parallel to itself between a rest position for which the active cylinder is away from the band and a leveling position for which the cylinder active is applied to the tape by pressing, on the opposite side, on its support organs, each active cylinder being able to be driven by rotation, before its application on the band, at an angular velocity corresponding substantially to the speed of travel of the band.
  • the rotational drive of each active cylinder is determined by direct application of a torque on one end of said cylinder, at an angular speed slaved to the tape speed.
  • each active cylinder is carried, at each of its ends, by a centering pin rotatably mounted about the axis of the cylinder, on a support piece slidably mounted on the frame crosswise of the crew parallel to a radial plane passing through the axis said active cylinder, the positions relative to said frame of the two support pieces that can be adjusted by radial sliding for the displacement of the active cylinder, parallel to its axis, between a position of application on its support organs and a discarded position, and one of the centering pins of each active cylinder is connected to a means for directly applying a torque to said trunnion.
  • each support piece of an active cylinder comprises a first housing-shaped portion cylinder, in which is mounted a rotary support bearing of the active cylinder, centered on a radial plane passing through the axis of said cylinder, and a second part forming an arm mounted sliding on a slide arranged on a guide foot fixed to the transverse frame of the planing crew.
  • each piece of sliding support is associated with a return means supporting, in a sense on the piece support and in the other on the transverse chassis, for the application of the active cylinder on its support organs.
  • each support piece comprises a means support on the chassis, advantageously constituted by a mounted cam rotational between at least two positions, respectively one position away from the chassis, allowing the application of the active cylinder on its support members, by means of return means supported on said support piece and a support position on the frame to repel the support piece against the action of the return means.
  • each support piece has a bearing part provided with at least one through-hole at least one guide rod fixed at one end to the transverse frame and extending, on the other side of the bearing portion of the support piece, up to a second end on which is provided a support flange of elastic means compressed between said flange and the support part of the support piece.
  • each piece of support of an active cylinder carries a centering bearing with a cage internal rotating device in which is threaded a support pin fixed on the end of the active cylinder, in the axis of the latter, one of the two journals being extended outwardly by a drive end connected to a means for controlling the rotation of the journal with the active cylinder, around its axis.
  • each of the two support pins of the active cylinder forms a shaft end provided, on the side of the active cylinder, with a detachable connection means with the active cylinder, said shaft end being axially displaceable between a constricted position of connection with the cylinder, for the rotary support of the latter and a spaced position, disengaged from the end of the cylinder, for disassembly of this last
  • this connecting means may consist of two parts of conjugate forms formed respectively on the trunnion and the end of the cylinder and engaging one another by displacement axial axis of the pin from a position apart to a constricted position.
  • each cylinder active is slidably mounted parallel to a radial plane passing through the axis of said cylinder, on a guide foot integral with a base slidably mounted on the transverse frame, parallel to the axis of the active cylinder, between a constricted position of the two support pieces for the engagement of the ends of the active cylinder on the bearings of centering and a spaced release position of the ends of the active cylinder, for disassembly of the latter, the transverse chassis being provided with means for fixing the base of the guide foot of each support piece in the tightened engagement position of ends of the active cylinder on the centering bearings.
  • the active cylinder in the rest position of the planing crew, can be removed from its support rollers by both cams, in order to be disassembled then, after reassembly between the two pins, it is repulsed by the two pieces support in the opposite direction so as to take support in advance on its support organs.
  • he In this position, he is trained in rotation at a peripheral speed corresponding to the scroll speed of the band, also supporting the support organs, so that that the contact with the belt, in the planing position, can occur without risk of slipping and, therefore, deterioration the superficial quality of the product.
  • the angular speed of rotation thereof around its axis can be slaved to the scroll speed of the band and this not only in the rest position of the crew of planing but also, during the planing, in the working position of the crew.
  • FIG. 1 is a schematic view of a set of planing installation.
  • Figure 2 is an overview, from the side, of a crew of top planing.
  • FIG. 3 is a detail view, in axial section, of an end of the upper leveling crew.
  • Figure 4 is a side view of the two planing crews.
  • FIG. 5 is a horizontal sectional view along line V-V of Figure 4.
  • Figure 1 shows schematically the conventional layout of a leveling installation comprising by example, two flexion units F1-F2 and a correction device of T tile, associated with rollers D and adjustable in height, in order to define a wavy path of the band M that runs between the rollers in a longitudinal direction parallel to the plane of the figure 1.
  • the strip is put under tension by known means such as tensioning rollers called “rollers in S "upstream and downstream.
  • Figure 1 shows, for example, the downstream tensioner device S.
  • Each bending unit includes two planing crews, respectively lower E and upper E 'longitudinally offset and each having, usually, an active cylinder A associated with two intermediate rollers I which rest on three rows of rollers G when the active cylinder A is applied to the belt in the planing position shown in Figure 1, by vertical displacement chassis C, for example, by means of cylinders or screws represented.
  • FIG. 2 shows, in a side view, the set of the upper leveling equipment E 'mounted on a transverse frame 1 forming a resilient beam extending in one direction orthogonal to the scroll axis of the strip and provided with parts 10 for cylinders or thrust screws of the crew of planing in its application position on the tape.
  • transverse frame of the upper crew E ' is rotatably mounted around of a horizontal axis, according to a provision which is the subject of the patent FR-A-2 659 254 from the same company, which allows to go back up the entire crew to facilitate dismantling and replacement of cylinders and rollers.
  • the active cylinder A and the intermediate rollers I do not bear on each other and on the rollers G that in the planing position and that is why they are worn with play by the transverse frame C and are only held laterally by axial stops.
  • the active cylinder 2 is provided at its opposite ends with two trunnions 3, 3 'centered on the axis 20 of the cylinder and rotatably mounted, by by means of bearings 30, 30 ', on two support pieces 4, 4' of the as shown in more detail in FIGS. 3, 4 and 5.
  • each support piece 4 forms a kind of empoise centered on a radial plane P passing through the axis 20 of the cylinder active 2 and has an arm 41 mounted sliding radially on a foot 5 extending to the strip from the frame 1, and a portion in the form of housing 40, attached to the end of the arm 41 opposite the chassis, and in which is inserted the bearing 30 of the pin 3.
  • each support piece 4 at one end of the active cylinder 2 is associated with return means 6 allowing to apply the active cylinder 2 on its support members which are constituted, in the example shown, of two intermediate rollers 7, 7 ', held axially between the two guide feet 5, 5' and resting on three rows of support rollers 70 rotatably mounted on the transverse frame 1.
  • each support piece 4, 4 ' is provided, on the side of the frame 1, a sole 44 on which support at least two springs 6 spaced apart symmetrically on both sides of the radial plane P and bearing, in the opposite direction, on the frame 1.
  • each spring 6 is threaded on a sleeve 61 passing through an orifice of the sole 44 of the chock 4 and fixed on the frame 1 by an axial screw 62, the sleeve 61 comprising a compression flange 63 of the spring 6.
  • Each chock 4, 4 ' is thus mounted radially sliding on at least two bushes 61 and pushed back to the frame 1 by the springs 6 tablets between the flanges 63 and the sole 44 which extends parallel to the base 51, at a short distance therefrom.
  • the two chocks 4, 4 'supporting the ends of the roll active 2 are thus pushed back to the transverse frame 1 by applying the active cylinder on the intermediate rollers 7, 7 'which take support on the pebbles 70.
  • the intermediate rollers 7 are not carried by bearings but simply held laterally between two axial abutments each consisting of a ceramic pellet 71 mounted in a housing 72 fixed by a rear extension 73 on the foot 5.
  • the guide foot 5 comprises two uprights spaced 52 carrying the slides 50, between which extends a sleeper 54 provided with two recesses 53 into which the extensions 73 of the two centering stops 71, respectively, of the two intermediate rollers 7, 7 '.
  • Each housing 72 is held by a clamping screw engaging in a threaded bore of extension 73 which is mounted sliding in the housing 53 parallel to the bisecting plane of two rows of pebbles 70 on which he leans, with a game allowing slight adjustments of the intermediate roll.
  • the active cylinder 2 is subject to wear and must be able to be replaced.
  • the bases 51 of the two guide feet 5 carrying the two support pieces 4 are slidably mounted on the transverse frame 1, parallel to the axes of the cylinders.
  • each base 51 is provided with a central groove which engages on a boss rectilinear 11 of the transverse frame 1.
  • it is provided with two longitudinal dwellings 12 within which are mounted sliding, respectively, two strips 13 connected to the base 51 by screws 14 which allow, after sliding, to block the base 51 in the chosen position.
  • each pin 3 of the active cylinder consists of two parts engaging one in the other and secured by a screw 34, respectively a pivot 31 fixed to the end of the active cylinder 2, in the axis thereof, and a shaft end 32 threaded into the bearing 30 and, by therefore axially secured to the support piece 4 and the foot of guidance 5.
  • the pivot 31 and the shaft end 32 are provided with conical parts conjugates formed respectively recessed and protruding, and engaging one into the other to ensure both the centering and the rotational drive of the active cylinder 2, one of the shaft ends 32, for example, the one on the left in FIG. 3, being provided with a tip 33 on which is applied a torque produced by a means motor not shown.
  • each chock 4, 4 'of a trunnion 3, 3' of the cylinder active 2 is equipped with a means of spacing the cylinder constituted, in the embodiment shown in the drawings, of a profile cam 8 eccentric rotatably mounted on the central rib 41 of the chock 4 around of an axis 80.
  • a rotation of the cam eccentric 8 around its axis 80 allows to push the sole 44 of each support piece 4, 4 'by increasing the compression of the 6.
  • the active cylinder 2 thus being slightly away from the rollers intermediate 7, 7 ', it is possible to spread both feet laterally 5, 5 'with support pieces 4, 4' to release the pivots 31 at both ends of the cylinder 2.
  • the transverse frame 1 is rotatably mounted around a horizontal axis 15, according to a provision which is the subject of the French patent FR 2 659 254 already cited. Indeed, before any disassembly operation, it is possible to turn 180 ° the upper leveling equipment E 'so that the active cylinder 2 is placed above its support organs and is therefore based on these last when one discards the two ends of the tree 32, 32 'with the chocks 4, 4 '.
  • the chocks 4, 4' are tightened so that the tapered portions of the pivot 31 and the shaft end 32 engage one in the other.
  • the cylinder 2 can then be applied to the rollers intermediate 7, 7 'by turning the eccentric cams in the other direction 8 which are provided with a plane face 81, in order to allow the springs 6 to push the sole 44 towards the base 51.
  • the spacing (e) between the soleplate 44 and the base 51 is maintained at a minimum value by adjustable stops 64 consisting of screws engaging in bores threaded of the sole 44.
  • one of the two trunnions of each active cylinder 2, for example the left trunnion 3 in the figure 2, is extended by a drive end 33, for example fluted, which can be removably connected to a motor means such as gearmotor, pulley and belt or other transmission device of the movement, according to the general arrangement adopted for the machine.
  • a motor means 9 shown schematically in FIGS. and 2 can be arranged on the fixed frame or on the frame of each leveling equipment E, E 'and removably connected to the active cylinder 2, 2 ', by a telescopic extension double cardan 36 allowing transmit the torque by following all the positions of the axis of the active cylinder, according to the diameters of all its support members.
  • each cylinder by a pin connected detachably to the cylinder 2 facilitates the disassembly and reassembly of the cylinder.
  • the active cylinders 2 can then be launched in rotation and they the intermediate rollers and the support rollers are frictionally driven. When the speed of synchronism with the band is reached, one can proceed to close the machine by placing the two crews E, E 'in their planing positions, the docking of the active cylinders on the band thus without skating and without risk of marking the product.
  • the springs 6 could be replaced by other ways.
  • enforcement efforts of the active cylinder are not the same for the lower equipment E and for the upper equipment E 'whose weight must be compensated.
  • the chocks of the active cylinder are advantageously associated with two pairs of springs symmetrical with respect to the radial plane P, on the one hand the springs 60 which exert only the necessary application pressure to the rotational drive of the cylinder and intermediate rollers, and on the other hand, two springs 65 which are calibrated so as to take up the weight of the active cylinder 2 with its two chocks 4, 4 ', its means 36 and, in a general way, all the organs which are not not carried directly by the chassis.
  • trunnion drive 3 could be releasably connected to the end of the cylinder, the other pin remaining fixed on the cylinder and can simply engage axially in the inner cage of the bearing corresponding for the winding of the cylinder, the guide foot of the bearing support piece 4 'being then fixed on the frame.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Soil Working Implements (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Wire Processing (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Replacement Of Web Rolls (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Coating With Molten Metal (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
EP05300003A 2004-01-06 2005-01-04 Vorrichtung zum Richten von Metallbändern Expired - Fee Related EP1552892B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0450021 2004-01-06
FR0450021A FR2864797B1 (fr) 2004-01-06 2004-01-06 Machine de planage d'une bande metallique

Publications (2)

Publication Number Publication Date
EP1552892A1 true EP1552892A1 (de) 2005-07-13
EP1552892B1 EP1552892B1 (de) 2008-07-09

Family

ID=34586500

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05300003A Expired - Fee Related EP1552892B1 (de) 2004-01-06 2005-01-04 Vorrichtung zum Richten von Metallbändern

Country Status (8)

Country Link
US (1) US7251977B2 (de)
EP (1) EP1552892B1 (de)
KR (1) KR101157661B1 (de)
CN (1) CN1636643B (de)
AT (1) ATE400376T1 (de)
DE (1) DE602005007943D1 (de)
ES (1) ES2308412T3 (de)
FR (1) FR2864797B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101733285B (zh) * 2008-11-05 2011-11-16 中冶赛迪工程技术股份有限公司 一种具有弯窜辊功能的平整机

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007006810B3 (de) * 2007-02-07 2008-10-02 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Vorrichtung zum Planieren von Metallbändern
KR101084314B1 (ko) * 2010-03-18 2011-11-16 강릉원주대학교산학협력단 비대칭 압연장치, 비대칭 압연방법 및 이를 이용하여 제조된 압연재
CN105327939B (zh) * 2015-11-27 2017-07-25 山东钢铁集团日照有限公司 一种能快速更换防皱辊的辊组
KR101779334B1 (ko) * 2015-12-29 2017-09-19 주식회사 성우하이텍 가변 두께 판재 성형용 롤 포밍 장치
CN109604339B (zh) * 2018-08-13 2023-09-01 襄阳博亚精工机器有限公司 一种辊盒
CN109604378A (zh) * 2018-12-24 2019-04-12 杭州恒创机电有限公司 拉弯矫直机
CN110038902A (zh) * 2019-04-03 2019-07-23 马鞍山市恒强合金科技有限公司 一种基于冷轧中间辊便于调节的切削装置
CN112775264A (zh) * 2020-12-23 2021-05-11 安徽宜万丰电器有限公司 一种新型v型卡箍扎带冲切模具

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074555A (en) * 1975-08-21 1978-02-21 Bwg Bergwerk-Und Walzwerk Maschinenbau Gesellschaft Mit Beschrankter Haftung Method of and apparatus for improving hot-rolled sheet-metal strips
JPS63149017A (ja) * 1986-12-11 1988-06-21 Ishikawajima Harima Heavy Ind Co Ltd テンシヨンレベラ−

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2091789A (en) * 1934-12-11 1937-08-31 Hedwig Maussnest Sheet straightening machine
US2963071A (en) * 1957-03-15 1960-12-06 Lake Erie Machinery Corp Leveler for sheet metal strips
US4286451A (en) * 1979-06-18 1981-09-01 The Yoder Company Forming leveller

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074555A (en) * 1975-08-21 1978-02-21 Bwg Bergwerk-Und Walzwerk Maschinenbau Gesellschaft Mit Beschrankter Haftung Method of and apparatus for improving hot-rolled sheet-metal strips
JPS63149017A (ja) * 1986-12-11 1988-06-21 Ishikawajima Harima Heavy Ind Co Ltd テンシヨンレベラ−

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0124, no. 04 (M - 757) 26 October 1988 (1988-10-26) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101733285B (zh) * 2008-11-05 2011-11-16 中冶赛迪工程技术股份有限公司 一种具有弯窜辊功能的平整机

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Publication number Publication date
DE602005007943D1 (de) 2008-08-21
US20050172691A1 (en) 2005-08-11
CN1636643A (zh) 2005-07-13
ES2308412T3 (es) 2008-12-01
EP1552892B1 (de) 2008-07-09
CN1636643B (zh) 2010-12-08
US7251977B2 (en) 2007-08-07
KR101157661B1 (ko) 2012-06-20
ATE400376T1 (de) 2008-07-15
KR20050072701A (ko) 2005-07-12
FR2864797A1 (fr) 2005-07-08
FR2864797B1 (fr) 2007-02-23

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