WO2010049596A1 - Méthode et dispositif de pierrage de bandes métalliques de largeurs arbitraires en défilement continu - Google Patents
Méthode et dispositif de pierrage de bandes métalliques de largeurs arbitraires en défilement continu Download PDFInfo
- Publication number
- WO2010049596A1 WO2010049596A1 PCT/FR2008/001512 FR2008001512W WO2010049596A1 WO 2010049596 A1 WO2010049596 A1 WO 2010049596A1 FR 2008001512 W FR2008001512 W FR 2008001512W WO 2010049596 A1 WO2010049596 A1 WO 2010049596A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- abrasive element
- strip
- honing
- displacement
- band
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
Definitions
- the present invention relates to a method and a device for honing suspended metal strips, of arbitrary widths and in continuous scrolling, according to the preambles of claims 1 and 13.
- the invention relates to an automated honing, based on a selective abrasion technique intended to highlight the surface defects of cold-rolled metal strips, the so-called honing being operated on suspended metal strips, in scrolling continuously, and being processed in a processing facility.
- Processing facilities for rolled metal strips such as, for example, cold rolling mills or continuous coating lines, can generate defects on the surface of the belts leading to costly rejects or downgrades. These defects come mainly from rolling operations, even under slight reduction as in the case of a skin-pass lamination or indentations of foreign bodies when passing under tension on tensioning or deflecting rollers. In any case, the marks generated on the strip are cyclic and reproduce at each rolling cylinder or roll turn.
- the said length is generally chosen depending on the step of the longest cycle, for example, the developed length of the working rolls of the first rolling stand multiplied by the reduction in thickness, or the developed length of the largest tensioner roll or deflector.
- the technique of honing which consists in rubbing an abrasive stone on the surface of the strip, makes it possible to highlight discrete defects that are hardly detectable by visual examination even with a grazing light. Thanks to the honing, the most relief parts such as, for example, the ridges of corrugations, indentation burrs, or incrustations, undergo a slight abrasion which is sufficient, by contrast, to put them more easily in evidence. a vision inspection.
- This honing operation is usually done manually by an operator who must move the entire width of the strip (which can reach nearly two meters wide) and the entire length of the sample (from 5 to 15 meters depending on the case ). These movements must be made with extreme care not to generate defects themselves, the operators proceed by moving on the hands and knees. Such an operation can be conceived only if the band portion to be inspected is stationary. It therefore remains of limited use to lines dedicated to inspection and samples inspected offline. On the other hand it requires that the tape is supported on a support such as a table or a conveyor which can, in some cases, create "false defects" due to the reaction of the support to honing the tape.
- a device automating a honing inspection of a continuously moving steel strip surface has been proposed according to KR2003-0077104.
- the said device comprises among others: a means of horizontal displacement, transverse to the running direction of the strip, of an abrasive element, the said means being capable of effecting an alternating displacement from one edge to the other of the strip of fixed width; allowing to apply a homogeneous pressure of the abrasive element on the metal strip supported by a system of rollers.
- the present invention does not concern a honing operated for a metal strip of fixed width and supported by a roller system, but on the contrary, a honing for a band of arbitrary width applied to a portion of strip suspended between at least two modules a processing facility.
- the device according to KR2003-0077104 is a facility dedicated to the inspection of metal strips after processing the strip, while the present invention applies to strips being processed in a processing facility.
- An object of the present invention is to propose a method of free, artefact-free and automated honing, of at least one face of a metal strip in continuous scrolling, for which the said honing is performed on a portion of the strip in suspension for example between two metal rollers supporting the band.
- Another object of the invention is to allow the said honing to operate on a maximum surface of a metal strip of arbitrary width during processing in a processing facility.
- the method according to the invention comprises a variable adjustment of said pressure as a function of a longitudinal tension of the strip portion of arbitrary width in a state of suspension.
- the method according to the invention is characterized in that the honing is operated for a predetermined duration for a band of arbitrary width being processed in a processing facility.
- the honing time can advantageously be related to the time interval separating the appearances of a cyclic defect, in particular, this duration can be determined according to the roll or rollers having the lowest angular speed of the processing plant. , in order to appreciate defects that may come from any other roller having a higher angular velocity.
- Another advantage relating to a control of the duration of honing is to be able to identify which element of the processing plant is at the origin of the defect using a deconvolution method based on the duration of honing and the position of the defect on the abraded strip portion.
- the method according to the invention advantageously applies to metal strips of arbitrary widths.
- the method according to the invention is characterized by a transverse displacement of the abrasive element adapted to the arbitrary width of the strip by means of edge detection of the strip in its transverse direction. Said detection makes it possible to set limits to the transverse displacement of the abrasive element. Said detection can take place continuously during the scrolling of the band being transformed, but also, simply, at the beginning of a honing cycle or the engagement of a new band. The bandwidth would thus be memorized (recording of the abscissas of the band edges) at the beginning of the honing operation and for its duration. At the end of a honing cycle, or at a new tape start, a new bandwidth measurement can be automatically performed.
- the method according to the invention is further characterized in that the bringing into contact is operated from at least one rest position to at least one working position of the abrasive element.
- Said rest position advantageously provides secure access to the abrasive element for an operator. In fact, it is an off-line position, outside the grip of the strip, which allows, for example, a visual check of the abrasive element, or the manual / automated quick change of the abrasive element. case of wear having exceeded a threshold value.
- the working position of the abrasive element is above the web, characterized by at least one contacting state of the abrasive element with the web, as well as at least one non-contact state of the abrasive element. abrasive element above the band.
- a horizontal transfer makes it possible to move the abrasive element from its rest position to its working position above the band, preferably in the median axis thereof.
- a vertical transfer then makes it possible to go from an off-contact state to a state in contact with the abrasive element with the strip, the latter state being in contact allowing, strictly speaking, an abrasive work on the part of the abrasive element. contact with the band.
- the method according to the invention is characterized in that the pressure is adjustable in the rest position and / or in the working position. This makes it possible, for example, to preset the honing operation for metal strips with known characteristics in the rest position, but also to adjust the pressure during honing in the working position when the band characteristics are new.
- the method according to the invention is characterized by an adjustable pressure as a function of the longitudinal tension of the strip by adding at least one stress to a vertical degree of freedom of the abrasive element.
- a simple example of stress would be in this case an addition of at least one mass to a mechanism allowing a vertical displacement of the abrasive element.
- Another example would be a manual / automated preload adjustment of at least one spring having a role in applying the pressure of the abrasive element to the surface of the web.
- the adjustment of this pressure would advantageously maintain a quality of contact with the surface of the band close to human practice, with a piercing force ideally varying between 5 and 50 N for a surface of 150x50mm.
- the method according to the invention is characterized in that a correlation between a running speed of the strip and a transverse displacement speed of the abrasive element regulates the displacement of the abrasive element.
- the transverse displacement speed of the abrasive element is defined as a function of a geometry of the contact zone, a geometry of the strip and the speed of travel of the strip.
- the transverse displacement speed is set to a value equal to the quotient [Vb • ( lb-2r-lp)] / Lp, defined by a width (Ib) of the band, the running speed (Vb) of the band and a distance of withdrawal (r) of an edge of the band relative to at one edge, parallel and the nearest, of the abrasive element at each end of its transverse displacement.
- This correlation advantageously makes it possible to pierce the entire surface of the strip included at a withdrawal distance (r) from the strip edges.
- the method according to the invention advantageously comprises an adjustment of the running speed (Vb) of the strip in at least a portion of the conversion plant as a function of the transverse displacement speed of the abrasive element.
- Vb running speed
- the method according to the invention is characterized in that a commitment of the honing method and the duration of honing are configured according to an availability and a capacity of total or residual accumulation of at least one tape accumulator device located upstream of the abrasive element in the processing installation in the direction of travel of the tape. Indeed, in the case where, for example, the transverse movement speed of the honing tool would not sweep the entire width of the band at the rate of the tape speed in the processing plant, it would then be necessary to reduce the speed of the band in the honing zone via the accumulator device of bandaged.
- a bidirectional exchange of information between at least one accumulator device, a control member of the installation and a control member of the honing device can advantageously allow manual configuration, even automatic, and / or manual adjustment, or even automated, parameters aiming at a performing and functional honing operation.
- the method according to the invention is characterized in that an exceeding of a wear threshold of the abrasive element is detected, reported and capable of causing the interruption of honing.
- the abrasive element is transferred vertically out of contact with the belt, then horizontally in its rest position, a position in which for example an operator could safely check the state of wear. abrasive element, and if necessary, replace it.
- the replacement of the abrasive element could be automated and, in particular, coupled to the tape accumulator device to slow down the movement of the tape being processed during the replacement. worn abrasive element.
- the underlying advantage of the method is firstly not to interrupt the transformation of the strip during the replacement of the abrasive element, and also, secondly, to minimize the uncured surface by slowing down the abrasive element. the speed of travel of the web when coupled with a tape accumulator device.
- the method according to the invention is further characterized in that the honing is performed upstream of an inspection station by vision.
- This may be for example a purely visual inspection, or a visual inspection aided by video scanning.
- the assessment, or even the result, of the said inspection may, for example, be directly This is reflected in the operation of the processing plant, requiring, for example, an interruption of the transformation of the tape, or its slowing down (via accumulation of the tape in an accumulator device), or again the verification of a part of elements of the processing plant in direct contact with the belt, in order to determine the cause of the tape defects observed during the inspection and to remedy them.
- a honing device of at least one face of a continuous-moving metal strip comprising:
- the device according to the invention is characterized in that said first means allows to apply a homogeneous pressure on a suspended portion of band of arbitrary width and scrolling, and is coupled to a second means for adjusting said pressure as a function of the longitudinal tension of the suspended band portion.
- the device according to the invention is characterized in that the said honing device can be integrated into an installation for transforming metal strips of arbitrary widths in order to carry out the said honing for a determined duration on a strip being processed. - tion.
- the honing device makes it possible to avoid congestion due to an additional installation dedicated specifically to the inspection (by honing) of converted metal strips.
- the device performing a real-time honing on a strip being processed, has the advantage of reducing the reaction time before the observation of defects in a metal strip, thus allowing, for example, a decrease in the amount of strip waste not meeting the rolling tolerances, cost and material savings.
- the device according to the invention is characterized in that the said horizontal displacement means makes it possible to move the abrasive element from at least one rest position to at least one working position, the said rest position. located outside the belt's grip to allow safe maintenance of the abrasive element for an operator, and said working position at the top of the belt and having at least one state in contact with the abrasive element with the band, as well as at least one non-contact state of the abrasive element with the band.
- the off-line rest position of the abrasive element allows an operator to safely check its condition, but also to control at least part of the horizontal moving means.
- the device according to the invention is characterized in that said horizontal displacement means comprises at least one horizontal carriage adapted to move transversely to the strip over a distance greater than the width thereof and including said positions. rest and work.
- Said vertical positioning means carries at least one vertical transfer member disposed between the carriage and a tool support, said tool support having a fixed vertical position during honing and supporting the first and second pressure means.
- the vertical transfer member comprises at least one jack actuating a set of links arranged in deformable parallelogram.
- the device according to the invention is particularly characterized in that said first pressure means comprises at least one tool plate supporting the honing element and secured to said tool support by means of at least one vertical slide in which the tool plate can slide freely.
- the first pressure means makes it possible to bring the abrasive element into contact with the strip, while the second pressure means makes it possible to adjust said pressure to the longitudinal tension of the strip portion.
- This honing device is thus characterized by an adjustable pressure capable of being supported by the single tension of the strip passing for example between at least two devices having the capacity to support the strip, such as for example a tensioning device or deflector upstream of the honing and a retractor device downstream.
- the advantage of such a device is to avoid artefacts due to honing carried out on a strip resting on a support such as a table, a conveyor or rollers. Indeed, the support of the band on a support during honing generally creates false defects due to the reaction of the support to the honing of the band. In addition, automatic honing is less painful for the operator who can then focus on the quality of processing of the tape.
- the device according to the invention is characterized in that a detection system detects the edges of the strip and transmits a signal relating said detection to the horizontal displacement means in order to advantageously adapt said displacement of the abrasive element to the arbitrary width of the strip.
- the horizontal displacement is limited to a stroke of a value equal to (Lb) - ((Ip) + (2r)), defined by a difference between the bandwidth (Lb) and the sum of a width ( Ip) of the abrasive element with a distance (2r) equal to twice a distance of withdrawal (r) of an edge of the strip relative to a edge, parallel and the nearest, of the abrasive element to each end of its transverse displacement.
- the detection system can measure the width of the strip continuously on a strip being processed, but also at the beginning of a honing cycle of a determined duration, or at the beginning of a band or, on request, following the decision of an operator.
- said detection system comprises at least one detector, in particular a contact-free remote sensor capable of detecting the edges of the strip during transverse displacement of the abrasive element, said detector being integral with an element having a fixed vertical position during honing and belonging to the vertical positioning means.
- said element having a fixed vertical position may be the tool support.
- the device according to the invention is characterized in that the second pressure means comprises at least one detector, in particular a distance detector, free of contact, able to detect the horizontal level of the abrasive element, says detector being secured to an element having a fixed vertical position during honing, ideally belonging to the vertical positioning means. Said detection makes it possible in particular to control in a simple manner a wear of the abrasive element by comparing the measured horizontal level with a threshold value characterizing a reference level. Ideally, a detection system will detect and equal to a wear of the abrasive element approaching the threshold value, and, if necessary, interrupts the honing when said threshold value is exceeded. In particular, in case of interruption of honing due to wear of the abrasive element, said abrasive element returns to its rest position where it will be exchanged for a new abrasive element, either manually by an operator, or automated way.
- the second pressure means comprises at least one detector, in particular a distance detector, free of contact, able
- the device according to the invention is characterized in that an adjustment system correlates a running speed of the strip at a transverse displacement speed of the abrasive element in order to (automatically) adjust the speed of the abrasive element. moving the band to the honing capabilities of the honing device in at least a portion of the processing plant.
- said adjustment is characterized by at least one exchange of at least one adjustment signal between a control system of the installation and said honing device.
- the adjustment system would for example make it possible to reduce the speed of the strip by using a tape accumulator device upstream of the honing to allow a detailed visual inspection of the strip or the change of a worn abrasive element. .
- Figure 1 embodiment example of piercing device performed on a suspended band of arbitrary width.
- FIG. 1 shows a device (7) for honing at least one face of a metal strip (1) suspended in continuous movement and comprising: means (73) for vertical positioning of an abrasive element (71) on the surface of said strip,
- first means (72) for applying a homogeneous pressure of the abrasive element on the metal strip characterized in that said first means (72) makes it possible to apply a homogeneous pressure to a suspended portion of the strip; in movement and is coupled to a second means (75) for adjusting said pressure as a function of the longitudinal tension of the suspended portion of tape.
- the means (74) of horizontal displacement comprises a horizontal carriage adapted to move transversely to the strip over a distance greater than the width thereof and including a rest position and work.
- the vertical positioning means (73) comprises a vertical transfer member (732) disposed between the carriage and a tool support (731), said tool support having a fixed vertical position during honing and supporting the first one.
- the first pressure means (72) comprises a tool plate (721) supporting the honing element and secured to said tool support (731) by means of at least one vertical slide (722) in which the plate tool holder can slide freely.
- a working position in contact with the abrasive element on the surface is illustrated by the honing device (7), while the honing device (8) illustrates a working position of the abrasive element out of the contact of the strip.
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08875620A EP2349641A1 (fr) | 2008-10-27 | 2008-10-27 | Méthode et dispositif de pierrage de bandes métalliques de largeurs arbitraires en défilement continu |
| CN2008801316894A CN102196885A (zh) | 2008-10-27 | 2008-10-27 | 用于对具有任意宽度的连续移动金属带材进行珩磨的方法和装置 |
| RU2011121358/02A RU2492039C2 (ru) | 2008-10-27 | 2008-10-27 | Способ и устройство хонингования непрерывно движущихся металлических полос произвольной ширины |
| BRPI0823205-9A BRPI0823205A2 (pt) | 2008-10-27 | 2008-10-27 | Método e dispositivo de polimento com pedra de tiras metálicas de larguras arbitrárias em deslocamento contínuo |
| PCT/FR2008/001512 WO2010049596A1 (fr) | 2008-10-27 | 2008-10-27 | Méthode et dispositif de pierrage de bandes métalliques de largeurs arbitraires en défilement continu |
| US13/126,230 US20110318991A1 (en) | 2008-10-27 | 2008-10-27 | Method and device for honing metal strips of arbitrary width in continuous motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/FR2008/001512 WO2010049596A1 (fr) | 2008-10-27 | 2008-10-27 | Méthode et dispositif de pierrage de bandes métalliques de largeurs arbitraires en défilement continu |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010049596A1 true WO2010049596A1 (fr) | 2010-05-06 |
Family
ID=40874625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2008/001512 Ceased WO2010049596A1 (fr) | 2008-10-27 | 2008-10-27 | Méthode et dispositif de pierrage de bandes métalliques de largeurs arbitraires en défilement continu |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20110318991A1 (fr) |
| EP (1) | EP2349641A1 (fr) |
| CN (1) | CN102196885A (fr) |
| BR (1) | BRPI0823205A2 (fr) |
| RU (1) | RU2492039C2 (fr) |
| WO (1) | WO2010049596A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017063932A1 (fr) | 2015-10-14 | 2017-04-20 | Cockerill Maintenance & Ingenierie S.A. | Dispositif pour la détection de défauts dans des bandes |
| EP3208596A1 (fr) | 2016-02-22 | 2017-08-23 | Cockerill Maintenance & Ingenierie S.A. | Dispositif de détection de défauts dans des bandes |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523907A (zh) * | 2020-04-14 | 2021-10-22 | 上海宝信软件股份有限公司 | 冷轧带钢自动打磨装置及打磨方法 |
| CN117655903A (zh) * | 2023-12-25 | 2024-03-08 | 苏州长城精工科技股份有限公司 | 一种新型cbn油石及其加工、使用方法 |
| CN119635517A (zh) * | 2025-01-07 | 2025-03-18 | 浙江富乐德石英科技有限公司 | 用于石英产品的加工设备 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2023904A (en) * | 1932-06-06 | 1935-12-10 | Schulte Grinding And Polishing | Process of finishing metallic sheets |
| GB736217A (en) * | 1952-02-22 | 1955-09-07 | Osborn Mfg Co | Improvements relating to the cleaning, removal of scale and conditioning of metal surfaces |
| JPS5921426A (ja) * | 1982-04-23 | 1984-02-03 | Nippon Kokan Kk <Nkk> | 熱間圧延鋼材のデスケ−ル方法 |
| JPH05208209A (ja) * | 1992-01-31 | 1993-08-20 | Nkk Corp | コイル研削ラインでの板厚変動制御方法 |
| KR20030077104A (ko) * | 2002-03-25 | 2003-10-01 | 주식회사 포스코 | 강판표면 검사장치 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1680401A1 (ru) * | 1989-08-24 | 1991-09-30 | Специальное Конструкторское Технологическое Бюро Металлообрабатывающего Оборудования Научно-Производственного Объединения "Черметмеханизация" | Способ производства листового проката |
-
2008
- 2008-10-27 BR BRPI0823205-9A patent/BRPI0823205A2/pt not_active IP Right Cessation
- 2008-10-27 US US13/126,230 patent/US20110318991A1/en not_active Abandoned
- 2008-10-27 RU RU2011121358/02A patent/RU2492039C2/ru not_active IP Right Cessation
- 2008-10-27 CN CN2008801316894A patent/CN102196885A/zh active Pending
- 2008-10-27 EP EP08875620A patent/EP2349641A1/fr not_active Withdrawn
- 2008-10-27 WO PCT/FR2008/001512 patent/WO2010049596A1/fr not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2023904A (en) * | 1932-06-06 | 1935-12-10 | Schulte Grinding And Polishing | Process of finishing metallic sheets |
| GB736217A (en) * | 1952-02-22 | 1955-09-07 | Osborn Mfg Co | Improvements relating to the cleaning, removal of scale and conditioning of metal surfaces |
| JPS5921426A (ja) * | 1982-04-23 | 1984-02-03 | Nippon Kokan Kk <Nkk> | 熱間圧延鋼材のデスケ−ル方法 |
| JPH05208209A (ja) * | 1992-01-31 | 1993-08-20 | Nkk Corp | コイル研削ラインでの板厚変動制御方法 |
| KR20030077104A (ko) * | 2002-03-25 | 2003-10-01 | 주식회사 포스코 | 강판표면 검사장치 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017063932A1 (fr) | 2015-10-14 | 2017-04-20 | Cockerill Maintenance & Ingenierie S.A. | Dispositif pour la détection de défauts dans des bandes |
| EP3208596A1 (fr) | 2016-02-22 | 2017-08-23 | Cockerill Maintenance & Ingenierie S.A. | Dispositif de détection de défauts dans des bandes |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2349641A1 (fr) | 2011-08-03 |
| RU2011121358A (ru) | 2012-12-10 |
| CN102196885A (zh) | 2011-09-21 |
| RU2492039C2 (ru) | 2013-09-10 |
| BRPI0823205A2 (pt) | 2015-06-30 |
| US20110318991A1 (en) | 2011-12-29 |
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