EP0545825B1 - Dresseuse de poutrelle - Google Patents
Dresseuse de poutrelle Download PDFInfo
- Publication number
- EP0545825B1 EP0545825B1 EP92403274A EP92403274A EP0545825B1 EP 0545825 B1 EP0545825 B1 EP 0545825B1 EP 92403274 A EP92403274 A EP 92403274A EP 92403274 A EP92403274 A EP 92403274A EP 0545825 B1 EP0545825 B1 EP 0545825B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinders
- girder
- stand
- straightening machine
- straightening
- 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.)
- Expired - Lifetime
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 3
- 230000007547 defect Effects 0.000 abstract description 8
- 125000006850 spacer group Chemical group 0.000 description 14
- 210000000056 organ Anatomy 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 241001080024 Telles Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
- B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work
Definitions
- the present invention relates to a dresser beam according to the preamble of claim 1.
- This dresser usually has longitudinal straightening means comprising two rows rollers, driven in rotation, and offset longitudinally, which act on the soul of the beam for flex the latter alternately, according to the technique well known in pebble dressing.
- longitudinal straightening means comprising two rows rollers, driven in rotation, and offset longitudinally, which act on the soul of the beam for flex the latter alternately, according to the technique well known in pebble dressing.
- the game between the rollers and the wings of the beam allow wing deformations, which leads to defects in parallelism of these, exceeding the tolerances of generally accepted deformation. It is known to correct these faults by straightening the wings of the beam to the press.
- This last operation has the disadvantage to interrupt the continuous treatment of the beam after its passing through the blocker and creating a slowdown in the beam production line.
- JP-A-1 099 722 which forms the basis of the preamble of claim 1, describes a trainer for the continuous erection of a beam with parallel wings, comprising, on the one hand, longitudinal straightening means of the beam, the beam passing through the straightener along its longitudinal direction, and other hand, a frame or cage comprising two cylinders between which pass the beam, the cylinders having axes substantially coplanar and perpendicular to the direction of passage of the beam.
- the invention aims to correct, continuously, defects of parallelism of the beams' wings caused in particular by its passage between the rollers of the dresser.
- FIG. 1 a dresser 10 according to the invention for the continuous dressing of a beam with parallel wings, not shown in Figure 1.
- the straightener comprises means 12 for longitudinal dressing of the beam, arranged on the right considering the figure, and a frame or cage 14 intended to correct the defects of parallelism of the beams' wings, arranged on the left considering the figure.
- the beam is introduced at the end right of the straightener and comes out from the left end of it, considering figure 1.
- the beam is horizontally driven in the straightener of such so that its soul is parallel to the plane of Figure 1.
- the longitudinal straightening means 12 are of known type. They include rollers 16, arranged substantially staggered in two parallel rows, exerting an effort on the web of the beam. The pebbles 16 are rotated, around vertical axes, by motors 18.
- the cage 14 is shown in more detail in the figures 2 to 5.
- the side edges of the cage are formed by two frames 20,22 arranged, opposite, on the side and on the other side of the beam passing direction.
- Each frame 20,22 comprises two vertical uprights 24 joined together by two spacers 26.
- FIG 2 there is shown a single amount 24 per frame for reasons of clarity.
- the amounts are welded into housings 27 formed in the spacers 26.
- the two side frames 20,22 of the cage are interconnected by horizontal crosspieces 28, perpendicular to the direction of passage of the beam.
- the frames 20,22 of the cage carry two cylinders 30.32 axes coplanar and perpendicular to the direction of passage of the beam.
- the ends or trunnions 34 of the cylinders are arranged in spherical bearings 36 housed in sliding bearings 38 vertically between the uprights 24 of the cage.
- Bearings 38 of cylinders 30,32 are shown in detail in Figures 2 and 3.
- Each bearing 38 comprises a rectangular bearing body 40 in which is mounted the spherical bearing 36 receiving a pin 34.
- the bearing housing 40 slides between the vertical uprights 24 of a cage frame.
- Two guide plates 42 are fixed by screws 44 respectively on both sides of the bearing housing parallel to the frame of the cage in which slides the landing.
- Each guide plate 42 is provided with an opening 45 for passage of the journal carried by the landing.
- Each cylinder 30.32 is connected to a device rotational drive 46.
- This device 46 includes a drive motor 48 and a transmission assembly 50 provided with a shaft 52 rigidly connected to one of the pins 34 of the cylinder.
- the training device 46 is carried by a bearing 38 by means of a support articulated 54 secured to the body 40 of this bearing.
- Each bearing carrying a trunnion connected to a drive device 46 has two annular seals 56, rubber, surrounding the trunnion, intended to protect the spherical bearing 36.
- Each seal 56 is arranged between one of the guide plates 42 of the bearing and an end ring 58 fixed to this plate by screws 60.
- Each bearing carrying a free journal is provided a single annular seal 56 disposed on the cylinder side of the bearing, as before, and a blanking plate 62 fixed on the guide plate 42, on the other side of the bearing.
- the cylinders are positioned by means comprising a positioning device 64 for each bearing 38 of the cage.
- This device 64 shown more in detail in Figures 4 and 5, is carried by the spacer 26 positioned directly above the bearing 38.
- the device 64 of cylinder positioning includes a screw-nut system comprising a screw 66, parallel to the vertical uprights 24, a first end 68 of which is connected to the bearing 38 and a second end 69 is free.
- Screw 66 has a body 70 cooperating by screwing with a nut 72, arranged in the spacer 26.
- the first end 68 of the screw 66 has a head received in a shoulder collar 74 attached to the body of bearing 40 by screws 76. Head 68 is free to rotate in collar 74 and vertically movable integrally with the bearing housing.
- a first end of the drive nut 72 is received in a counterbore 78, formed in the spacer 26.
- This counterbore surrounds an orifice 79 drilled vertically in the spacer and crossed by the body 70 of the screw.
- a second end of the drive nut 72 is received in an assembly 80 forming a cap.
- This cap 80 includes a wheel 82 of a wheel and screw system endless 82.90 and a stepped sleeve 83 fixed by means designed - not shown - on one end of the wheel 82 and extending it along the vertical axis of the screw 66.
- the internal surface of the wheel 82 is provided with vertical ribs 84 cooperating with notches 86 of complementary shape arranged on the periphery of the drive nut 72.
- the outer surface of the wheel 82 has teeth 88 meshing with a worm drive 90 arranged horizontally in the spacer 26, perpendicular to the plane of Figure 4.
- the sleeve 84 has two shoulders 92, 94 of vertical positioning of the cap 80 in the spacer 26. These shoulders 92.94 are arranged respectively on the outer surface and on the inner surface of the sleeve 83.
- the outer shoulder 92 for positioning the cap cooperates with a bearing stop 96, shown schematically in Figure 4, rotating in a plane horizontal perpendicular to the uprights 24 of the cage.
- This bearing stop 96 is carried by a ring 98 fixed by screws 100 on the spacer 26.
- the ring 98 is crossed by the free end of the stepped sleeve 83.
- An annular seal 101 seals between the outer surface of sleeve 83 and inner surface of ring 98.
- the internal shoulder 94 for positioning the hat cooperates with an elastic member 102 disposed between this shoulder and one end of the drive nut 72, inside the sleeve 83.
- This member elastic 102 has a generally tubular shape with a vertical axis. It consists, for example, of a stack of elastic washers such as Belleville washers.
- the internal diameters of the elastic member 102 and of the sleeve 83 are greater than the outside diameter of the body 70 of the vertical screw so as to allow movement of the latter through the sleeve and the organ elastic.
- the drive nut 72 is positioned vertically in the spacer 26 between the counterbore 78, forming stop, and one end of the elastic member 102. This nut 72 is vertically movable in the direction opposing the elastic force of organ 102. The travel of the nut 72 is limited, in this sense, by a shoulder 104 forming a stop, arranged on the surface inside of sleeve 83.
- a flexible cylindrical envelope 106 or bellows is disposed between the spacer 26 and the collar shoulder 74 so as to surround the body 70 with the screw 66 protruding from the spacer to isolate it from the outdoor environment.
- a protective cover 108 is attached on the ring 98, carrying the horizontal bearing 96, at the right of the free end of the sleeve 83.
- Figure 5 shows the arrangement in the spacer 26 of the worm 90 driving the nut 72.
- the ends of this worm 90 are carried by bearings 110,112 arranged in bearings of the spacer 26.
- One end of the worm 90 is connected to the shaft of a drive motor 114.
- FIG. 2 There is shown schematically in Figure 2 a P-beam, arranged between the cylinders 30,32, of which exaggerated the dimensions and the defects of parallelism wings to make it easier to understand how it works from the cage.
- the cylinders 30, 32 are positioned so that form an angle, in the section plane of the beam P, suitable for correcting parallelism defects in wings of this beam.
- the positioning of the cylinders 30.32 is obtained by vertically moving their bearings between the uprights 24 of the frames 20, 22 of the cage 14.
- the operation of the positioning device 64 is as follows.
- the motor 114 of the worm 90 is driven in a direction corresponding to the rise or the descent of the landing that he commands.
- the drive nut 72 is rotated through the crown gear 82 of the cap 80.
- the nut 72 is, in normal operating conditions, immobilized vertically between the counterbore 78 and the elastic member 102.
- the rotation of the nut 72 in a horizontal plane causes the vertical displacement of the screw 66 connected to the bearing. All hat 80, i.e. the crown toothed 82 and the sleeve 83, is rotated jointly with nut 72.
- the two spherical bearings 36 in which are arranged respectively the two pins 34 of a same cylinder allow to tilt, compared to a horizontal plane, the axis of the cylinder. We thus form a angle, between the two cylinders 30,32, determined in function of the parallelism defects of the wings of the beam that we want to correct.
- each positioning device 64 constitutes a means of security limiting this effort.
- This elastic organ is dimensioned in such a way that when the cylinders are subjected to an excessive force tending to force their spacing and to deform them, it will compressed.
- the nut of the positioning device 64 moves vertically against the elastic force of the elastic organ, being pushed by the bearing and the vertical screw 66, which causes the spacing of the cylinders.
- the straightener according to the invention ensures the rectification continuous wing parallelism defects a beam, the latter being subjected to longitudinal straightening means comprising for example pebbles cooperating with his soul.
- the cage cylinders described above are fitted with drive devices.
- the training of the beam is mainly provided by means of longitudinal dressings that push the beam between the wing dressing cylinders.
- cage 14 is placed directly downstream of the longitudinal straightening means, as close as possible to these, it is not that at the end of training, over a short length, that the cage cylinders 14 have a real training effect.
- the beam is still engaged in the longitudinal dressing means, it is firmly guided by his soul, held in a plane vertical.
- the fact that the cage 14 is located immediately downstream of the longitudinal straightening means allows thus ensuring not only the parallelism of the wings but also their perpendicularity in relation to the soul.
- Elastic limiting safety means of effort allow to ensure a longer longevity protecting cylinders from stresses excessive exerted by the beam.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Particle Accelerators (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Forging (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Metal Rolling (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
Description
- les extrémités ou tourillons des cylindres sont disposés dans des roulements à rotule logés dans des paliers, ces derniers étant portés par la cage et déplaçables le long de montants latéraux de celle-ci ;
- les moyens de positionnement des cylindres comprennent, pour chaque palier, un système vis-écrou dont la vis est reliée au palier et dont l'écrou d'entraínement, porté par la cage, est muni de moyens d'entraínement en rotation, la rotation de l'écrou provoquant le déplacement en translation de la vis et du palier sensiblement parallèlement aux montants latéraux de la cage;
- les moyens de positionnement des cylindres comprennent des moyens de sécurité de limitation de l'effort exercé par la poutrelle sur les cylindres ;
- les moyens de sécurité comprennent un organe élastique, associé à chaque écrou d'entraínement, coopérant avec ce dernier de telle façon que, d'une part, pendant le fonctionnement normal de la cage, l'écrou d'entraínement soit immobilisé en translation entre une butée d'immobilisation, ménagée dans la cage, et une extrémité de l'organe élastique, et d'autre part, un effort excessif, exercé sur les cylindres par la poutrelle, déplace en translation l'écrou d'entraínement de la vis à l'encontre de la force élastique de l'organe élastique, dans le sens de l'écartement des cylindres ;
- les moyens d'entraínement en rotation de l'écrou d'entraínement comprennent un chapeau, recouvrant une extrémité de l'écrou d'entraínement, solidaire en rotation de l'écrou par coopération de forme, la surface externe du chapeau étant munie d'une roue dentée engrenant avec une vis sans fin entraínée en rotation, et l'organe élastique de sécurité est disposé entre un épaulement de la surface intérieure du chapeau et l'écrou d'entraínement ;
- les cylindres comportent des moyens d'entraínement en rotation.
- la figure 1 est une vue d'ensemble de la dresseuse selon l'invention ;
- la figure 2 est une vue en élévation de la cage de la dresseuse avec une coupe partielle suivant le plan contenant les axes des cylindres ;
- la figure 3 est une vue en coupe suivant la ligne 3-3 de la figure 2 ;
- la figure 4 est une vue en coupe, à grande échelle, suivant la ligne 4-4 de la figure 2 ;
- la figure 5 est une vue en coupe suivant la ligne 5-5 de la figure 2.
Claims (7)
- Dresseuse pour le dressage en continu d'une poutrelle (P) à ailes parallèles, la poutrelle (P) passant dans la dresseuse suivant sa direction longitudinale, la dresseuse comprenant des moyens (12) de dressage longitudinal de la poutrelle munis de galets (16) coopérant avec l'âme de la poutrelle et entraínant la poutrelle, deux cylindres (30,32) portés par une cage (14) et entre lesquels passe la poutrelle, présentant des axes sensiblement coplanaires et perpendiculaires à la direction de passage de la poutrelle, et des moyens de positionnement (64) de chaque cylindre (30,32) adaptés pour former un angle entre les axes des cylindres (30,32) de façon à faire coopérer ces deux cylindres respectivement avec les deux ailes de la poutrelle (P) afin de corriger les défauts de parallélisme de celles-ci, caractérisée en ce que ladite cage (14) est disposée immédiatement en aval des moyens (12) à galets (16) de dressage longitudinal, si bien que la poutrelle est entraínée dans la cage (14) essentiellement par les moyens de dressage longitudinal, la poutrelle ne coopérant dans la cage (14) qu'avec les cylindres (30,32).
- Dresseuse selon la revendication 1, caractérisée en ce que les extrémités ou tourillons (34) des cylindres (30,32) sont disposés dans des roulements à rotule (36) logés dans des paliers (38), ces derniers étant portés par la cage (14) et déplaçables le long de montants latéraux (24) de celle-ci.
- Dresseuse selon la revendication 2, caractérisée en ce que les moyens de positionnement (64) des cylindres (30,32) comprennent, pour chaque palier (38), un système vis-écrou (66,72) dont la vis (66) est reliée au palier et dont l'écrou d'entraínement (72), porté par la cage (14), est muni de moyens (80,90,114) d'entraínement en rotation, la rotation de l'écrou provoquant le déplacement en translation de la vis (66) et du palier (38) sensiblement parallèlement aux montants latéraux (24) de la cage.
- Dresseuse selon l'une quelconque des revendications 1 à 3, caractérisée en ce que les moyens de positionnement (64) des cylindres (30,32) comprennent des moyens (102) de sécurité de limitation de l'effort exercé par la poutrelle (P) sur les cylindres.
- Dresseuse selon les revendications 3 et 4 prises ensemble, caractérisée en ce que les moyens (102) de sécurité comprennent un organe élastique (102), associé à chaque écrou d'entraínement (72), coopérant avec ce dernier de telle façon que, d'une part, pendant le fonctionnement normal de la cage (14), l'écrou d'entraínement (72) soit immobilisé en translation entre une butée d'immobilisation (78), ménagée dans la cage, et une extrémité de l'organe élastique (102), et d'autre part, un effort excessif, exercé sur les cylindres (30,32) par la poutrelle, déplace en translation l'écrou d'entraínement (72) de la vis (66) à l'encontre de la force élastique de l'organe élastique (102), dans le sens de l'écartement des cylindres.
- Dresseuse selon la revendication 5, caractérisée en ce que les moyens d'entraínement en rotation de l'écrou d'entraínement (72) comprennent un chapeau (80), recouvrant une extrémité de l'écrou d'entraínement, solidaire en rotation de l'écrou (72) par coopération de forme, la surface externe du chapeau (80) étant munie d'une roue dentée (82) engrenant avec une vis sans fin (90) entraínée en rotation, et en ce que l'organe élastique (102) de sécurité est disposé entre un épaulement (94) de la surface intérieure du chapeau (80) et l'écrou d'entraínement (72).
- Dresseuse selon l'une quelconque des revendications précédentes, caractérisée en ce que les cylindres (30,32) comportent des moyens (46) d'entraínement en rotation.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9115025A FR2684574B1 (fr) | 1991-12-04 | 1991-12-04 | Dresseuse de poutrelle. |
FR9115025 | 1991-12-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0545825A1 EP0545825A1 (fr) | 1993-06-09 |
EP0545825B1 true EP0545825B1 (fr) | 1998-03-25 |
Family
ID=9419662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92403274A Expired - Lifetime EP0545825B1 (fr) | 1991-12-04 | 1992-12-03 | Dresseuse de poutrelle |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0545825B1 (fr) |
AT (1) | ATE164334T1 (fr) |
DE (1) | DE69224884T2 (fr) |
ES (1) | ES2116326T3 (fr) |
FR (1) | FR2684574B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020215582A1 (de) | 2020-12-09 | 2022-06-09 | Sms Group Gmbh | Beibiegeeinrichtung |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19525513B4 (de) * | 1995-07-13 | 2006-01-19 | Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH | Vorrichtung zum Richten eines Flanschprofils als Richtgut |
ITMI20061667A1 (it) * | 2006-09-01 | 2008-03-02 | Danieli Off Mecc | Impianto di raddrizzatura |
ITPD20090018U1 (it) * | 2009-03-26 | 2010-09-27 | Maschio Gaspardo Spa | Erpice rotativo perfezionato |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1186318A (fr) * | 1956-09-11 | 1959-08-20 | Sutton Eng Co | Appareil pour corriger le contour des profilés extrudés ou laminés |
DE2261369A1 (de) * | 1972-12-15 | 1974-06-20 | Roechling Burbach Gmbh Stahl | Spannvorrichtung fuer rollenrichtmaschinen |
JPH0716708B2 (ja) * | 1987-10-12 | 1995-03-01 | 川崎製鉄株式会社 | H形鋼のフランジ直角度矯正装置 |
JPH0829348B2 (ja) * | 1987-12-09 | 1996-03-27 | 川崎製鉄株式会社 | H形鋼の矯正方法 |
-
1991
- 1991-12-04 FR FR9115025A patent/FR2684574B1/fr not_active Expired - Fee Related
-
1992
- 1992-12-03 DE DE69224884T patent/DE69224884T2/de not_active Expired - Fee Related
- 1992-12-03 EP EP92403274A patent/EP0545825B1/fr not_active Expired - Lifetime
- 1992-12-03 ES ES92403274T patent/ES2116326T3/es not_active Expired - Lifetime
- 1992-12-03 AT AT92403274T patent/ATE164334T1/de not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020215582A1 (de) | 2020-12-09 | 2022-06-09 | Sms Group Gmbh | Beibiegeeinrichtung |
Also Published As
Publication number | Publication date |
---|---|
EP0545825A1 (fr) | 1993-06-09 |
DE69224884D1 (de) | 1998-04-30 |
FR2684574B1 (fr) | 1995-09-08 |
ES2116326T3 (es) | 1998-07-16 |
FR2684574A1 (fr) | 1993-06-11 |
DE69224884T2 (de) | 1998-09-17 |
ATE164334T1 (de) | 1998-04-15 |
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