EP2205369A1 - Dispositif d'inspection d'une bande métallique - Google Patents
Dispositif d'inspection d'une bande métalliqueInfo
- Publication number
- EP2205369A1 EP2205369A1 EP08837906A EP08837906A EP2205369A1 EP 2205369 A1 EP2205369 A1 EP 2205369A1 EP 08837906 A EP08837906 A EP 08837906A EP 08837906 A EP08837906 A EP 08837906A EP 2205369 A1 EP2205369 A1 EP 2205369A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- winding
- mandrel
- sample
- conveying
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
-
- 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
- B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
- B21C47/245—Devices for the replacement of full reels by empty reels or vice versa, without considerable loss of time
-
- 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
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- 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
- B21B15/0007—Cutting or shearing the product
- B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
- B21B39/04—Lifting or lowering work for conveying purposes, e.g. tilting tables arranged immediately in front of or behind the pass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
- B21B41/12—Arrangements of interest only with respect to provision for indicating or controlling operations
Definitions
- the invention relates to a device for inspecting a metal strip at the output of an on-line processing facility.
- a metal strip In an on-line processing plant, in particular a rolling mill, a metal strip must be wound in a reel, at the outlet of the processing section, so as to be easily transported to another part of the installation or any other place of use.
- winding machines comprising a mandrel rotatably mounted on a frame around an axis orthogonal to the longitudinal axis of travel of the strip and on which a torque is applied to wind the strip with a force of traction necessary to the rolling process and also allowing to ensure the application of the turns on one another.
- WO 2006/051239 describes an arrangement of this type.
- the band is cut by a shear placed at the outlet of the treatment section to allow the evacuation of the wound coil and the head of the strip being processed can immediately be directed to the other mandrel already in the first winding start position.
- a metal strip such as a sheet
- flatness defects may occur.
- a coil can be removed from the installation from time to time and placed on a reel to unroll the length of the strip necessary for the inspection.
- Such devices are heavy and expensive. In addition, they allow to inspect only one side of the band.
- JP-A-2000-254725 describes a device of this type comprising, at the exit of a rolling installation, a carousel type winder and an inspection table carrying several pairs of pinch rollers. which can rotate 180 ° simultaneously around a lateral axis. A shear placed downstream of the last cage thus makes it possible to cut a sample which is held between the different pairs of rollers so as to first inspect the upper face, the sample being then returned by rotation of 180 ° pinch rollers, to inspect the underside.
- the document WO 2006/051239 describes another arrangement making it possible to avoid taking support on a table. In this case, in fact, the sample is stretched between two grippers respectively mounted on two rotating plates spaced longitudinally, and can rotate simultaneously about a longitudinal axis, to return the sample.
- each winder must be equipped with a wrapper to facilitate the start of winding, and a switch for either directing the sample to the inspection device, or guide the tape head to the mandrel.
- a carousel winder of the type described in document JP-A-2000-254725 makes it possible to use a single switch and a single wrapper for the two mandrels that successively come into the winding start position.
- it must be directed accurately to the mandrel, by means of the switching device placed downstream of the shear. It is therefore necessary to exert a certain bending force on the strip to direct it towards the mandrel placed below the plane of travel. For this, we can pass the band between two rollers movable transversely, or push the tape head to the mandrel by means of a pusher roller actuated by a jack.
- a guiding device comprising, in known manner, two inclined plates placed on either side of the strip and forming a guiding chute converging towards the mandrel. Furthermore, after engagement on the mandrel of the head of the strip, it is wound on a few turns then the rotation of the frame is controlled to bring the mandrel into its winding position, and replace it with the other mandrel in the winding start position.
- the strip In this second position, diametrically opposed, the strip must be subjected to a relatively large tensile force and directed towards a deflector roll placed in the plane of travel, above the winder.
- the subject of the invention is a new provision making it possible to solve all these problems while avoiding such drawbacks.
- the invention therefore generally relates to a device for inspecting a metal strip at the outlet of a processing installation successively comprising, along a running direction of the strip, a processing section. , a shear, a carousel type winder having at least two winding mandrels mounted on a rotating frame, means for guiding the strip, after shearing, to the mandrel in the winding start position and a winding device.
- inspection comprising means for conveying a sample taken by shearing the strip towards an inspection table extending downstream of the coiler in a substantially horizontal plane.
- the mandrel in the winding start position is placed substantially at a plane of travel of the strip downstream of the shear, while the mandrel in the end winding position is placed at above said plane of travel so that the tensile force applied by the belt is always directed downwards, and the means for conveying the sample between the shear and the inspection table are formed on at least one guide table tilted upwards by an angle sufficient to pass over the coil at any moment of the winding and whatever the diameter of the coil.
- the inspection table is placed above the plane of travel of the strip downstream of the shear, at a distance from said plane greater than the maximum radius of a coil at the end of winding, increased by distance between the axis of rotation of the mandrel and the plane of scrolling.
- the conveying means are arranged along a lower face of the inclined guide table, facing towards the strip running plane and advantageously comprise means for applying the sample. on said lower face, with the possibility of longitudinal displacement.
- these means of conveying the sample comprise an endless belt extending between two spaced apart rolls, between the upstream end and a downstream end of the guide table and provided, advantageously, magnetic means for applying the sample to the carpet.
- the guide table carrying the sample conveying means is articulated, at an upstream end, about an axis orthogonal to the direction of travel and extends along an inclined plane passing above the coil in winding end position, to a downstream end placed substantially at the axis of said coil, above it.
- the guide table may be provided, at its upstream end, with a baffle roll centered on the axis of articulation of the frame and on which the sample taken from the strip is applied, at the exit of the shears.
- the guide table is articulated about an axis orthogonal to the direction of travel, and is supported on the coil in end winding position, by means of a roller.
- the device comprises a transfer table provided with means for longitudinal conveying of the sample, and extending between a downstream end of the inclined guide table and an upstream end of the inspection table. the upstream end of this transfer table being placed at an intermediate level between the downstream end of the guide table and the coil in end winding position.
- the switching device placed downstream of the shear comprises a plate hinged about an axis orthogonal to the running direction of the strip and means for orienting the plate between a substantially horizontal conveying position. of the strip towards the mandrel in the starting position and an upwardly inclined position, of connection with an upstream end of the means of conveying the sample.
- this switching plate is articulated about an axis placed in its central part, substantially at the upstream end of the conveying means, so as to comprise, in the inclined position of the plate, a downstream portion which comes substantially in contact with said conveying means and an upstream portion which deviates downwards for the passage of the sample.
- Figure 1 is a schematic overview of an inspection device placed at the output of a strip processing line, with a switch in the guiding position of the strip towards the mandrel of a carrousel winder.
- Figure 2 is an overall view of the device with a switch in guiding position of the sample, and for a large diameter spool.
- Figure 3 shows the entire device with a switch in the guide position of the sample, and for a small diameter coil.
- FIG. 1 there is shown diagrammatically an inspection device placed at the outlet of an on-line processing plant of metal sheets, downstream from a treatment section A, not shown, for example a cold rolling plant. comprising several successive cages operating in tandem.
- the output section 1 of the installation may comprise successively, in the direction of travel of the band M, that is to say from right to left on the figure, a deflector roll 11 for guiding the band M to a shear shear 12, means for driving the band, for example a pair of nip rollers 13 mounted on a frame 12 and rotated, a Flying shear 14 of known type for cutting the band parade and a winder 2 for winding in the coil of the band M after rolling or other treatment.
- this winder 2 is advantageously of the carousel type comprising two diametrically opposite mandrels 21, 21 'carried by a not shown frame, drum-shaped, rotatably mounted on a support frame 22, about a horizontal axis 20, orthogonal to the running direction of the strip M.
- Each mandrel 21, 21 ' is provided, in a known manner, with not shown means for engaging and clamping the tape head and can be rotated around its head.
- the winder 2 is equipped with a single wrapper 25 comprising at least two guide arms 26, 26 'determining a bending of the band for winding the first turns on the mandrel and this wrapper is mounted on a frame movable between the engagement position shown in the drawings, for which said guide arms 24, 24 'surround the mandrel 21, and a spaced apart position for rotating the frame rotating about its axis 20.
- the band M (indicated in phantom) is driven by the nip rolls 13 and its head is engaged on a first mandrel placed in its first position E1 winding start.
- the frame is rotated so as to bring the first mandrel into a second position E2 diametrically opposite, the second mandrel then coming into the first position E1.
- the winding of the strip continues in this second position E2, until a coil 3 having a diameter d is obtained.
- the band is subjected to a tangential force T.
- the band M is cut by the shear 14 and the spool 3 can be lowered on a handling trolley 24, in order to to be evacuated.
- Articulated arms 31 make it possible to maintain the wound strip before it is taken over by the carriage 24.
- the head of the new strip has been directed towards the mandrel 21 located in the first position E1 of the beginning of 'winding.
- the carousel winder is placed in a pit, below the strip travel plane and it is therefore necessary to apply a bending force on the head of the machine to precisely direct it towards the mandrel of the winder.
- the mandrel 21 in the winding start position is placed substantially at the level of the horizontal plane P of the strip downstream of the shear 14, the axis 20 of rotation of the rotating frame of the winder being placed above this plane.
- an essential advantage of the invention lies in the fact that, after cutting, the head of the new band, driven by the nip rollers 13, naturally moves towards the mandrel 21 which is substantially at the level of the scroll plane, and can therefore easily engage in the clamping means provided on the mandrel 21. It is therefore sufficient, to direct the strip towards the mandrel 21, to place, between the latter and the shear 14, a substantially horizontal guide plate 4 , consisting, for example of a belt conveyor comprising an endless belt 41 stretched between two rollers 42, 42 '.
- the second mandrel 21 'placed in the second diametrically opposed position of the end of winding E2 is at a relatively high height above In this way, during the rotation of the rotating frame for the passage of the mandrel in this position E2 and until the end of the winding of the coil 3, the strip follows an inclined path of a angle (a) relative to the scroll plane P and the tensile force T applied to the strip is directed permanently downwards.
- the inspection table 5 on which a sample of the strip to be inspected is to be placed is placed clearly above the scroll plane P and not, as before, substantially at this plane. . Therefore, to convey the strip sample from the shear 14 to the inspection table 16, according to the invention, conveying means 6 are used passing over the coil 3.
- these conveying means 6 comprise a guide table 61 forming a plate inclined upwards so as to pass over the coil 3 at the end of winding and carrying an endless belt 62 stretched between two rollers apart, respectively an upstream roller 63 placed a little above the plane P scrolling of the strip and a downstream roll 63 'placed a little downstream of the vertical plane Q passing through the axis 23' of the mandrel 21 'in the end winding position E2.
- this endless belt 62 is of the magnetic type comprising a series of magnets 64 interposed between the two strands of the endless belt 62 and this latter is formed on the lower face of the guide table 61, turned towards the plane scroll P and the winder 2.
- the plate 6 is articulated, at its lower end, about an axis 60 orthogonal to the direction of travel and is supported, at its upper end, on the outer face 32 of the coil 3, by means of a roller 65.
- this roller is coated with a material that does not risk deteriorating the surface quality of the band and used, conventionally, for the various deflector rollers for guiding the band.
- the weight of the plate carrying the guide belt 6 is compensated by a jack 67 articulated on the frame C of the installation.
- the guide table 6 is provided with a baffle roller 66 rotatably mounted about the hinge axis 60 of the plate 61.
- the device 4 for guiding the band between the shear 14 and the mandrel 21 is used to apply the band sample to the magnetic belt 62, 64 in order to direct it to the inspection table 5.
- the endless belt 41 is mounted on a tray-shaped frame hinged about an axis 40 and can be oriented by means of a jack 43 whose body bears on the foundation block 15 and whose rod is articulated, about an axis 44, on a support piece secured to the orientable plate 4.
- the tail of the previous strip is wound on the coil 3 which can be evacuated.
- the cylinder 43 then rotates the guide plate 4 upwards, in the intermediate position shown in FIG. 2, so that, as soon as the first section of the sample is cut, the head thereof is directed towards the magnetic belt 62 who can then take care of the sample.
- the plate 4 continues its pivoting until it comes into alignment with the belt 62 in the position shown in FIG. 3 and the shear 14 makes a second cut to separate the sample M1. This is pushed by the pinch rollers 13 and applied to the magnetic belt 62, so as to be driven by it to the inspection table 5, passing over the coil 3.
- the sample leaving the belt 62 can simply be deposited on the inspection table 5.
- This is usually made of an endless belt and it is preferable that the upstream end 51 thereof is spaced from the winder 2 and connected to the downstream end 63 'of the guide table 6 by a transfer table 7 also comprising an endless belt 71 mounted on a not shown frame, in the form of a plate and stretched between two separated rollers, respectively an upstream roll 72 placed below the downstream roll 63 'of the guide table 6 and a downstream roll 72' placed next to the upstream roll 51 of the inspection table 5.
- the guide table 6 bears directly, by the roller 65, on the spool 3, in order to follow the variations in diameter thereof.
- the coil-wound tape length and, therefore, the maximum diameter thereof may vary because, in continuous rolling, it is possible successively to treat sheets of different types and sizes.
- FIGS. 1 and 2 show a coil 3 of maximum diameter while FIG. 3 shows the arrangement corresponding to a coil 3 of small diameter. It is therefore necessary that the transfer table 7 also follow these variations in diameter.
- the transfer table 7 is articulated, at its downstream end, about a horizontal axis corresponding, preferably to the axis of rotation of the downstream roller 72 'placed near the upstream roller 51 of the inspection table 5.
- the transfer table 7 can be oriented by means of a jack 73 so that its upstream end 74 is always placed at an intermediate level between the coil 3 at the end of winding and the downstream end of the table. 6, that is to say the downstream roll 63 'of the magnetic belt 62.
- the upstream end of the transfer table 7 may be provided with a tapered portion 73 forming a spout. guidance extending below the lower run of the guide table 6 to facilitate passage of the sample to the transfer table 7.
- the head of the strip is directed directly to the mandrel 21 while remaining in its scroll plane P.
- the axis of rotation 23 of the mandrel 21 is placed substantially in this plane P, one of the arm 25 of the wrapper extends above the mandrel 21 forming, with the latter, a guide space which is gradually tightened and in which the head of the band naturally engages.
- the frame of the winder can rotate to bring the mandrel to its position E2, the jack 67 can move the guide table 6 to allow this rotation of the coil during winding.
- the guide table 7 is lowered until the roller 65 comes into contact with the outer face of the coil.
- the strip is inclined upwardly at an angle (a) from the baffle roller 66, the tensile force T being directed downwards.
- the hinge axis 40 thereof is placed in its central part and shifted downwards. as shown in the figures.
- the endless belt constituting the switching table 4 rotates about its point of tangency with the deflector roller 66 and the upstream roller 42 moves downwards to let the head of the sample M1 which is applied on the underside of the endless belt 61 by the upward movement of the downstream end 42 'of the switch mat 4, as shown in FIG. 3.
- the sample M1 is thus successively guided by the table 4, the guide table 6 and the transfer table 7 to the inspection table 5, passing over the coiler 2.
- the raised position thereof eliminates the pit in which it is usually placed, all devices can be placed on the same foundation floor 15. In addition, the evacuation coiled coils 3 'is facilitated.
- raising the inspection table 5 to a relatively large height above the foundation floor 15 facilitates the establishment of turning mechanisms as described, for example, in WO 2006/051239 or JP 2000 254725, cited above.
- mandrel 21 is placed in position E1 winding start at a certain height above the floor 15, it is easier to arrange around the mandrel wrappers of any type known to facilitate the engagement of the tape head and the beginning of winding.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0758151A FR2921852B1 (fr) | 2007-10-08 | 2007-10-08 | Dispositif d'inspection d'une bande metallique |
PCT/FR2008/000877 WO2009047395A1 (fr) | 2007-10-08 | 2008-06-20 | Dispositif d'inspection d'une bande métallique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2205369A1 true EP2205369A1 (fr) | 2010-07-14 |
EP2205369B1 EP2205369B1 (fr) | 2012-12-26 |
Family
ID=39135217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08837906A Not-in-force EP2205369B1 (fr) | 2007-10-08 | 2008-06-20 | Dispositif d'inspection d'une bande métallique |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2205369B1 (fr) |
CN (1) | CN101821029B (fr) |
ES (1) | ES2401973T3 (fr) |
FR (1) | FR2921852B1 (fr) |
WO (1) | WO2009047395A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1397452B1 (it) * | 2009-12-30 | 2013-01-10 | Danieli E C Ohg S P A | Dispositivo e procedimento per avvolgere/svolgere un prodotto metallico in una linea di laminazione |
DE102011077461A1 (de) | 2011-02-23 | 2012-08-23 | Sms Siemag Ag | Vorrichtung und Verfahren zur Entnahme einer Probe von einem Coil |
BE1021536B1 (fr) * | 2012-02-06 | 2015-12-09 | Cockerill Maintenance & Ingenierie S.A. | Installation et procede de sortie de laminoir tandem avec carrousel de bobinage couplee avec une inspection en ligne (i) |
EP2664390B1 (fr) * | 2012-05-15 | 2015-11-18 | Cockerill Maintenance & Ingenierie S.A. | Installation et procédé de sortie de laminoir tandem avec carrousel de bobinage couplée avec une inspection en ligne |
US9586250B2 (en) | 2012-02-06 | 2017-03-07 | Cockerill Maintenance & Ingénierie S.A. | Tandem rolling mill output method and installation with coiling carousel coupled with on-line inspection |
EP2664391A1 (fr) * | 2012-05-16 | 2013-11-20 | Cockerill Maintenance & Ingenierie S.A. | Installation et procédé de sortie de laminoir tandem avec carrousel de bobinage couplée avec une inspection en ligne |
BE1020475A3 (fr) * | 2012-02-06 | 2013-11-05 | Cockerill Maintenance & Ingenierie Sa | Intallation et procede de sortie de laminoir tandem avec carrousel de bobinage couplee avec une inspection en ligne (ii). |
EP2902126A1 (fr) * | 2014-01-31 | 2015-08-05 | Primetals Technologies Austria GmbH | Procédé et dispositif d'échantillonnage de bandes métalliques |
CN109433833B (zh) * | 2018-11-30 | 2023-12-29 | 中冶南方工程技术有限公司 | 用于带钢表面质量检测的转向装置及方法 |
CN112150644B (zh) * | 2020-09-17 | 2022-11-08 | 北京停简单信息技术有限公司 | 停车稽查方法、装置、电子设备及停车监控管理系统 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3247705A1 (de) * | 1982-12-23 | 1984-07-05 | Siemag Transplan Gmbh, 5902 Netphen | Scherenanlage mit inspektionsrollgang |
JP2000254725A (ja) * | 1999-03-05 | 2000-09-19 | Hitachi Ltd | 冷間圧延設備 |
DE10300362A1 (de) * | 2003-01-06 | 2004-07-22 | Sms Demag Ag | Verfahren und Anlage zum Walzen und anschließendem Haspeln von Metallband, insbesondere von Stahlband |
FR2877593B1 (fr) * | 2004-11-10 | 2008-05-02 | Vai Clecim Soc Par Actions Sim | Procede et dispositif d'inspection d'une bande laminee |
-
2007
- 2007-10-08 FR FR0758151A patent/FR2921852B1/fr not_active Expired - Fee Related
-
2008
- 2008-06-20 CN CN2008801106345A patent/CN101821029B/zh not_active Expired - Fee Related
- 2008-06-20 EP EP08837906A patent/EP2205369B1/fr not_active Not-in-force
- 2008-06-20 WO PCT/FR2008/000877 patent/WO2009047395A1/fr active Application Filing
- 2008-06-20 ES ES08837906T patent/ES2401973T3/es active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2009047395A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2401973T3 (es) | 2013-04-25 |
FR2921852A1 (fr) | 2009-04-10 |
FR2921852B1 (fr) | 2010-02-26 |
CN101821029B (zh) | 2012-06-20 |
EP2205369B1 (fr) | 2012-12-26 |
CN101821029A (zh) | 2010-09-01 |
WO2009047395A1 (fr) | 2009-04-16 |
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