EP2566799B1 - Processus intégré de commande, de centrage et de régulation de la cambrure d'une bande métallique sur des lignes de transformation - Google Patents

Processus intégré de commande, de centrage et de régulation de la cambrure d'une bande métallique sur des lignes de transformation Download PDF

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EP2566799B1
EP2566799B1 EP11716184.4A EP11716184A EP2566799B1 EP 2566799 B1 EP2566799 B1 EP 2566799B1 EP 11716184 A EP11716184 A EP 11716184A EP 2566799 B1 EP2566799 B1 EP 2566799B1
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Prior art keywords
strip
correction
camber
respect
centering
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German (de)
English (en)
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EP2566799A1 (fr
Inventor
Stefano Martines
Fausto Guariento
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Tenova SpA
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Tenova SpA
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B65H23/038—Controlling transverse register of web by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/31—Features of transport path
    • B65H2301/311—Features of transport path for transport path in plane of handled material, e.g. geometry
    • B65H2301/3112—S-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/15—Roller assembly, particular roller arrangement
    • B65H2404/152—Arrangement of roller on a movable frame
    • B65H2404/1521—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/15—Roller assembly, particular roller arrangement
    • B65H2404/152—Arrangement of roller on a movable frame
    • B65H2404/1521—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis
    • B65H2404/15212—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis rotating, pivoting or oscillating around an axis perpendicular to the roller axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/20—Calculating means; Controlling methods
    • B65H2557/24—Calculating methods; Mathematic models
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/173—Metal

Definitions

  • a strip guiding apparatus includes a roll rotatable about its longitudinal axis over which strip will travel while under tension.
  • Sensing apparatus determines the lateral position of the strip with respect to the desired position and emits signals to control apparatus which will effect responsive rotation of support apparatus in order to effect rotation of the roll about a second axis which is spaced from and oriented generally perpendicular to the roll longitudinal axis responsive to lateral movement of the strip in relation to the desired position.
  • Drive apparatus effects rotation of the support apparatus responsive to receipt of signals from the control apparatus in order to move the strip toward the desired position.
  • Apparatus is also provided for measuring strip tension and emitting signals to tension controlling apparatus to adjust tension where it is not within a desired range.
  • the drive apparatus is adapted to effect rotation of the roll about the second axis in either rotatable direction and up to about 15 degrees in each direction.
  • the document US2002/0158100 discloses an in-line web-centering apparatus for centering a web of material in an aseptic internal area of a form-fill-seal packaging machine.
  • the web-centering apparatus has a support member, a tracking assembly, and an alignment mechanism, each contained within the internal aseptic area of the packaging machine.
  • the support member is internally fixed to the form-fill-seal packaging machine.
  • the tracking assembly is mounted to the support member and pivots about the support member. The pivoting of the tracking assembly positions the tracking assembly at an angle with respect to the support member, such that when the alignment mechanism is activated the angle of the tracking assembly is modified, thereby adjusting a flow path of the web of material in the packaging machine.
  • Trajectory defects of the strip which can be found in practical cases, can be classified in two categories (or a mixture of the two): offset, i.e. side translations of the axis of the strip with respect to the centre of the line, and deviations caused by cambers, i.e. longradius curvatures in the lying plane and radius orthogonal to the axis.
  • correction means can translate the strip for centering its position in various points of the line but the correction is generally limited to the transversal position of the strip (near the positioning sensor).
  • a curvature of the moving strip causes a misalignment (even if remaining in the same plane as the strip) between the axis of the line and the axis of the strip and, in the transients, between the vectors of the project rate and actual rate: as a result, the defect therefore propagates beyond the correction means.
  • a snakering or meandering is formed which propagates along the whole line. This obviously causes errors in the processing (for example a longitudinal cut, deposition processes or rolling into coils) which can also significantly affect the quality of the end-product.
  • centralizers which can be found distributed along a process line for strips and, for example, at the outlet of a thermal section, consist of one or more rolls assembled on frames capable of rotating (even if in a limited manner), with respect to the main axes of the ingoing strip.
  • the following types of centralizers can be distinguished, for the function they exert:
  • ⁇ is, therefore, a compromise selected by the line designer and is not always suitable for the conditions of the inlet material (for example limited ⁇ values produce modest correction possibilities upstream, high ⁇ values produce excessive tensions/deformations in the material, with possible stretchings of an edge or breakage of the material itself).
  • a general objective of the present invention is to solve the drawbacks mentioned above of the known art in an extremely simple, economical, and particularly functional way.
  • Another objective is to provide a centering process which combines all the advantages of the three known types, attempting to reduce the drawbacks to the minimum.
  • a further objective is to provide a process which, by effecting an optimal centering, controls and regulates the camber of the strip in all types of strip process lines, in the presence of various kinds of defects.
  • An integrated process for the control, centering and regulation of the camber of the metallic strip in process lines essentially consists, as a whole, of three components: a measuring group of the position of a strip 14 and camber, which can be schematized in 11, a group of centering rolls (for example one or more rolls positioned on a frame) schematized in 12, and a management unit, which acquires data, drives active elements and registers the status of the line, schematized in 13.
  • the measuring group of the position of the strip consists of a form and position analyzer of the strip 14, capable of defining the geometrical status of the strip 14, moment by moment, in order to be able to detect the onset of possible defects and take the necessary corrective measurements.
  • the form analyzer acts as monitoring system which comprises optical methods in which the strip 14 reveals its position by intercepting part of a light emitted by a source.
  • the source is situated in front of a detector, subject to geometrical constraints of the line, in order to obtain its curvature.
  • the presence is advantageously required of a minimum of two of these optical monitoring systems, such as those schematized in fig. 2 and indicated with 15, 16 and 17.
  • Sensors 15 of the inductive or capacitive type schematically shown in fig. 2 can also be used.
  • More innovative and less traditional systems, based, for example, on "image processing" can also be effective.
  • the basis is represented by image recognition, as shown in figure 2 , using at least one video camera 16 or 17 and an algorithm capable of extracting the geometrical information from the acquired frames.
  • apparatuses can be used equipped with traversable or fixed laser devices.
  • the positioning of the form detection systems There is no necessary constraint for the positioning of the form detection systems. As the feed-back times for the reduction in the camber defect are relatively long, the selection of the positioning of the acquisition systems of the form of the strip (either first that 17 or after that 16 of a roll control system 18, or in both positions) only has limited implications on the algorithm used for the control.
  • a group of centering rolls 12, which determines the mechanical control of the position and curvature of the strip 14, is envisaged according to the invention in association with this first group 11.
  • rolls 19 are envisaged, assembled on a double frame, fixed 20 and movable 21.
  • active and passive means are present, such as hydraulic or electromagnetic pistons 22, 23, ball bearings (not shown), etc..
  • An integral part of the control system relating to hot lines where the strip 14 passes through an oven 24 and leaves the same, consists of a set of flow-regulating valves 25 of a cooling fluid capable of operating on the cooling rate of the strip 14 in a differentiated way with respect to its width (between the operator-side edge and the motor-side edge).
  • the integral mechanical control (by introducing non-constant stress on the width) therefore allows a differentiated operation on the strip 14 at the outlet of the cooling section 26, by selectively and deliberately "stretching" only one edge of the strip 14.
  • selective deformations are introduced, calculated for (partially) recuperating possible metallurgical or geometrical defects and of residual tensioning (preexisting and/or induced by the present processing cycle) capable of significantly modifying the qualitative state of the final product.
  • an electronic control centre 13 is envisaged, which is the core of the system.
  • the following functions are exerted therein: acquisition of the general data in 31 of the strip 14 being treated; reception of the offset data in 32 and curvature data in 33 obtained from the system 11; calculation of the corrective interventions and management of the control rolls of the group 12 (indicated as 34 for the intervention on ß - proportional - and as 35 for the modifications in ⁇ - mixed integral/proportional) and communication in 36 to an automation system of the line 37 of information relating to the strip being treated.
  • the algorithm is based on the evaluation of the offset 32 and curvature 33 (observed by the monitoring system 11) to define the variation in real time of the proportional angles ß and integral angles ⁇ to be implemented on the control cylinders 19.
  • the algorithm used by the controller has a form of the following type:
  • the regulator once the integral correction has been effected (by correcting the angle ⁇ ), waits for the "flight time" calculated in relation to the distance of the area at the maximum temperature in the oven and rate, after which it re-analyzes the camber by comparing the reading obtained with the expected value (50% of the initial value).
  • the regulator effects a recalculation based on the new parameters (present ⁇ , ⁇ and camber error, residual Ei) and recycles determining the new value of Ui (intervention on ⁇ ).
  • a further set of signals indicated with 38 can be used for selectively modifying the partialization of the cooling fluid in the areas of the strip 14, typically three areas (outer operator side, central and outer motor side). This action is preferably obtained by modifying the ejection flow-rate of the cooling fluids insufflated in 39 on the three areas of the cooling section 26.
  • the algorithm must take into account the position of the sensors and centering device with respect to the area with the highest temperature in the oven 24 (in the case of the centering device at the oven exit) or the length of the branch of entry free strip (in the generic case of a centering device operating in a cold area), but the most significant aspect of the calculation consists in the graduality of the intervention: an instantaneous action and complete correction on the part of the centering roll would exert excessive stress on the edges of the strip in addition to an unstable and divergent response on its trajectory.
  • the integral action acts by increasing the potential energy of the system for a quantity proportion to the elastic modulus of the material multiplied by the square of the deformation imposed, it is therefore extremely sensitive to differential variations (between the edges) in the trajectory.
  • the strip reaches the new condition of minimum energy by passing, without sliding, on the roll, wherein, with the same steering angle ⁇ the deformation ⁇ and tension ⁇ on the edges of the strip deriving from the stress generated by the "pulling" difference between the two edges are inversely proportional to the length of the free span of the ingoing branch.
  • the strategy recommended herein consists in establishing an integral ⁇ correction lower than what is necessary for totally eliminating the camber defect of the ingoing strip for thermal lines or position of the ingoing strip for cold branches giving the system the possibility of perfectly correcting the outgoing position thanks to the so-called "proportional” action (ß rotation).
  • the total correction of the camber can be obtained by means of a series of consecutive and cumulative interventions also acting on the cooling system.
  • the overall correction time is compatible with the passage time of cambers already present or induced by the thermal cycle, making their correction possible.
  • the entity of each intervention is also calculated on the basis of metallurgic considerations.
  • An alternative control method consists in the use, initially, of pre-established corrective parameters, inferred from the geometrical and compositional characteristics of the strip. These parameters are then optimized during the process, by comparing the actual and expected behaviour. Methods of this type can be used for both running the control rolls alone (i.e. in a cold process line) and also in more complex systems such as, for example those in which, in addition to rolls, there are also differentiated cooling means (modulating the flow of the cooling fluid).
  • the algorithm is based on the fact that greater cooling gradients and a consequent higher thermal contraction of the fibres involved, correspond to different flow-rates or severe cooling conditions (if different cooling systems are used, such as, for example, mist or nebulized air) of the cooling fluid.
  • the result is that, when the cooling action is increased, an increase in tension is obtained in the oven 24 with a consequent extension of the fibres.
  • the correlation between cooling gradient and fibre elongation can be calculated analytically or with models with respect to the finished elements.
  • the ultimately most complex characterization of the cooling is simulated by means of calculation models with respect to the finished elements or finished and refined differences, in order to consider the specific characteristics of the line, by adjustments in the commissioning phase.
  • control centre 13 Important but less innovative functions for this control centre 13 consist of interconnections with the computer and informative system of the steelworks 37 for the acquisition of physical and chemical parameters in 31 of the roll under processing and the transfer, at the outlet, of the descriptive parameters of the processing effected in 36, possibly equipped with the analytical calculation of the shape defects.
  • a direct interexchange function of data with the treatment oven 24 and the quenching section (non represented) can also be implemented.
  • the centering system is equipped with proportional action plus integral action (determined by the means 22 and 23), the latter adjustable according to the feedback signals coming from the main sensor 15 of the position of the strip 14 (normally positioned downstream of the centering rolls 12), from the position sensor of the frame (linear transducer normally used in common centering devices) and, when possible, from additional position sensors 16 and 17 situated so as to allow the calculation of the camber of the strip 14, by means of specific electronic equipment 40 or line automation 41.
  • the integral action is therefore regulated in relation to the camber measured and characteristics of the strip (thickness, width, and yield point of the material) 31.
  • the correction system is typically situated at the outlet of the cooling section 26 of a thermal treatment oven 24.
  • the roll centering system 12 has proportional action (in 22) plus integral action (in 23), the latter adjustable in relation to the feedback signals 32 coming from the position sensor of the main strip 15 (normally positioned downstream of the centering roll group), from the position sensor of the frame and from the additional position sensors and/or planarity and camber measurers (for example 16 and/or 17), arranged so as to allow the calculation of the camber of the strip by means of specific electronics 40 or line automation 41.
  • the integral action is regulated (in 40) in relation to the camber measured and characteristics of the strip (thickness, width, yield point of the material at the operating temperature of the oven, provided in 31) to obtain, in addition to the proportional action immediately operating in the exit branch following the centering movement, a correction of the form of the ingoing branch.
  • suitable expedients for example, by avoiding the introduction of deflections around rolls, which would homogenize the load
  • a first action of the centering device is therefore effected (corresponding to the behaviour of a classical proportional integral centering device) as follows:
  • a second action of the centering device is also effected, according to the present invention, as follows:
  • the third action of the centering device is also effected according to the present invention, as follows:
  • the system effects another correction cycle using the new calculation parameters.
  • the cycle starts from the first action listed herein and is reiterated until the conclusion of the strip being processed.
  • the present invention consequently consists of an integrated innovative system for centering and/or controlling/regulating the camber of the strip, which can be optimized and adapted to practically all strip process lines, to all defects which can be encountered in normal production routines and to all types of strip processed in a steelworks.
  • the modulation of the integral effect is effected by means of hydraulic or electro-mechanical actuators capable of modifying the tilt angle ⁇ of the rotation axis of the roll(s) so as to be able to vary the ratio between the integral action and proportional action, by adjusting the line response to the actual conditions of the strip.
  • the invention is characterized in that, in order to be able to express its specific application elasticity, it must be capable of simultaneously controlling both the angle ⁇ and the angle ⁇ (and consequently also ⁇ ) through a calculation algorithm capable of dosing its intervention in extension and time.
  • a further characteristic of the invention in lines equipped with a thermal treatment oven, consists in the application of the calculation algorithm for a contemporaneous and simultaneous control of the driving roll (by exploiting the "traction" asymmetry induced by ⁇ ) and cooling step at the oven exit (through dosage valves of the cooling flow, which control the cooling allowing more or less time for establishing the plastic deformation).

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  • Control Of Heat Treatment Processes (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Stereophonic System (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Claims (7)

  1. Processus intégré pour la commande, le centrage et la régulation de la cambrure d'une bande métallique dans des lignes de transformation dans lequel la bande (14) est passée sur un groupe de centrage comprenant un cadre mobile (21) supportant un ou plusieurs rouleaux (19) et qui opère une rotation (β) par rapport à un cadre de support fixe (20) effectuant un décalage d'une branche de la bande sortante par rapport à une branche de la bande entrante, dans lequel la rotation (β) du cadre mobile (21) a lieu autour d'un axe (B) incliné par rapport au plan sur lequel la branche entrante de la bande repose, qui crée un angle de direction (γ) de l'axe de rouleau par rapport à la perpendiculaire à l'axe de la ligne par une rotation d'un angle d'inclinaison (α) des cadres par rapport au plan perpendiculaire à la branche entrante, dans lequel des capteurs (15, 16, 17) sont positionnés sur la bande (14) agencée le long de la ligne et connectés à une carte de commande électronique (13) qui reçoit les données de la bande avançant (position et cambrure) et, en fonction d'un algorithme de commande, utilisé par la commande qui a la forme suivante :
    pour la correction de la partie proportionnelle dans β : Up = Kp * Ep
    Figure imgb0021
    où Up est l'intervention à effectuer sur β pour la correction, Ep exprime l'erreur de positionnement de la bande (telle que révélée par les capteurs) et Kp est un paramètre dimensionnel qui exprime la lecture de gain et de décalage ;
    pour la partie intégrale dans α : Ui = Ki * Ei
    Figure imgb0022
    où Ui est l'intervention à effectuer sur α pour la correction, Ei exprime l'erreur de cambrure de la bande (telle que révélée par les capteurs) et Ki est un paramètre dimensionnel qui englobe le gain et la translation vers α des paramètres de courbure révélés ;
    dans lequel pour une erreur de positionnement donnée Ep = e, un Up est généré sur β, égal à la correction totale entière prédite, c'est à dire ; Up = e * Kp
    Figure imgb0023
    et dans lequel il y a une erreur de cambrure Ei = e' avec laquelle la correction intégrale (direction γ) doit être calculée, qui est calculée et établie par l'inclinaison réelle α et β ; le gain étant régulé pour être inférieur à 1 (correction complète de la cambrure) en utilisant, par exemple, la méthode de « Ziegler-Nichols », 50% de l'intervention de correction totale est adoptée, par exemple ; Ui = e ′ * Ki / 2
    Figure imgb0024
    dans lequel ledit algorithme calcule les interventions de corrections, agit sur les actionneurs (22, 23) reliés auxdits cadre fixe (20) et cadre mobile (21) et, dans le cas d'une ligne avec des sections thermiques, agit sur des surfaces de refroidissement (26) de la bande (14) en aval de la section chaude d'un four (24).
  2. Processus selon la revendication 1, caractérisé en ce que lesdits capteurs (15) sur la bande (14) situés le long de la ligne et connectés à la carte de commande électronique (13), analysent la forme au moyen de procédés optiques inductifs et/ou capacitifs, dans lequel la bande (14) intercepte une partie d'une lumière émise par une source, afin d'obtenir la courbure.
  3. Processus selon la revendication 2, caractérisé en ce que lesdits procédés optiques sont du type « traitement d'image », avec une reconnaissance d'image au moyen d'au moins une caméra (16), et comprennent une phase d'extraction d'image géométrique depuis des formes acquises.
  4. Processus selon la revendication 1, caractérisé en ce que lesdits capteurs (15, 16, 17) consistent en trois capteurs du type optique, ou inductif, ou capacitif, qui définissent les trois points de passage de la bande (14) nécessaires pour tracer la courbure de la même bande.
  5. Processus selon une ou plusieurs des revendications précédentes, caractérisé en ce que ladite action sur des surfaces de refroidissement est effectuée par une série de signaux (38) utilisés pour modifier de manière sélective la répartition du fluide de refroidissement dans les zones de la bande 14, en particulier trois (extérieure, côté opérateur, centrale et côté moteur extérieure) ladite modification étant obtenue en modifiant le débit d'éjection des fluides de refroidissement insufflés (en 39) sur lesdites trois surfaces de la section de refroidissement (26).
  6. Processus selon une ou plusieurs des revendications précédentes, caractérisé en ce qu'une interconnexion est envisagée pour ladite carte de commande (13) avec un système d'information informatique pour l'installation sidérurgique (37) pour l'acquisition des paramètres chimiques et physiques (en 31) de la bande (14) étant traitée et le transfert, à la sortie, de paramètres de description du traitement effectué (en 36), équipée du calcul analytique des défauts de forme.
  7. Système intégré pour la commande, le centrage et la régulation de la cambrure d'une bande métallique dans des lignes de transformation dans lequel la bande (14) est passée sur un groupe de centrage comprenant un cadre mobile (21) supportant un ou plusieurs rouleaux (19) et qui opère une rotation (β) par rapport à un cadre de support fixe (20) effectuant un décalage d'une branche de la bande sortante par rapport à une branche de la bande entrante, dans lequel la rotation (β) du cadre mobile (21) a lieu autour d'un axe (B) incliné par rapport au plan sur lequel la branche entrante de la bande repose, qui crée un angle de direction (γ) de l'axe de rouleau par rapport à la perpendiculaire à l'axe de la ligne par une rotation d'un angle d'inclinaison (α) des cadres par rapport au plan par rapport à la branche entrante, dans lequel des capteurs (15, 16, 17) sont positionnés sur la bande (14) agencée le long de la ligne et connectés à une carte de commande électronique (13) qui reçoit les données de la bande avançant (position et cambrure) et, en fonction d'un algorithme de commande, utilisé par la commande qui a la forme suivante :
    pour la correction de la partie proportionnelle dans β : Up = Kp * Ep
    Figure imgb0025
    où Up est l'intervention a effectuer sur β pour la correction, Ep exprime l'erreur de positionnement de la bande (telle que révélée par les capteurs) et Kp est un paramètre dimensionnel qui exprime la lecture de gain et de décalage ;
    pour la partie intégrale dans α : Ui = Ki * Ei
    Figure imgb0026
    où Ui est l'intervention à effectuer sur α pour la correction, Ei exprime l'erreur de cambrure de la bande (telle que révélée par les capteurs) et Ki est un paramètre dimensionnel qui englobe le gain et la translation vers α des paramètres de courbure révélés ;
    dans lequel pour une erreur de positionnement donnée Ep = e, un Up est généré est généré sur β, égal à la correction totale entière prédite, c'est à dire ; Up = e * Kp
    Figure imgb0027
    et dans lequel il y a une erreur de cambrure Ei = e' avec laquelle la correction intégrale (direction γ) doit être calculée, qui est calculée et établie par l'inclinaison réelle α et β ; le gain étant régulé pour être inférieur à 1 (correction complète de la cambrure) en utilisant, par exemple, la méthode de « Ziegler-Nichols », 50% de l'intervention de correction totale est adoptée, par exemple ; Ui = e ′ * Ki / 2
    Figure imgb0028
    dans lequel ledit algorithme calcule les interventions de corrections, agit sur les actionneurs (22, 23) reliés auxdits cadre fixe (20) et cadre mobile (21) et, dans le cas d'une ligne avec des sections thermiques, agit sur des surfaces de refroidissement (26) de la bande (14) en aval de la section chaude d'un four (24).
EP11716184.4A 2010-05-06 2011-04-20 Processus intégré de commande, de centrage et de régulation de la cambrure d'une bande métallique sur des lignes de transformation Active EP2566799B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2010A000801A IT1399922B1 (it) 2010-05-06 2010-05-06 Procedimento integrato di controllo, centraggio e regolazione della sciabolatura (camber) del nastro metallico in linee di processo
PCT/EP2011/002104 WO2011137988A1 (fr) 2010-05-06 2011-04-20 Processus intégré de commande, de centrage et de régulation de la cambrure d'une bande métallique sur des lignes de transformation

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EP2566799A1 EP2566799A1 (fr) 2013-03-13
EP2566799B1 true EP2566799B1 (fr) 2017-12-06

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CN (1) CN102883980B (fr)
IT (1) IT1399922B1 (fr)
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JP5782197B2 (ja) 2011-12-15 2015-09-24 スリーエム イノベイティブ プロパティズ カンパニー 移動ウェブを導くための装置
CN104729437B (zh) * 2013-12-24 2018-03-13 珠海格力电器股份有限公司 打包带偏斜率的检验装置及检验方法
CN104016170B (zh) * 2014-06-13 2016-04-13 上海小松包装机械有限公司 一种自动在线纠偏装置
JP2017171436A (ja) * 2016-03-23 2017-09-28 株式会社Ｓｃｒｅｅｎホールディングス 蛇行補正装置、基材処理装置、および蛇行補正方法
CN105668288A (zh) * 2016-03-29 2016-06-15 广州贝晓德传动配套有限公司 虚拟圆心摆动纠偏系统
CN105692297B (zh) * 2016-04-06 2018-10-30 广州贝晓德传动配套有限公司 一种适用于柔性物料的定位纠偏装置及其应用方法
CN105858306A (zh) * 2016-04-06 2016-08-17 广州贝晓德传动配套有限公司 一种用于一次性卫生用品原材料偏移检测及纠正的设备
CN109720084A (zh) * 2017-10-31 2019-05-07 天津长荣科技集团股份有限公司 烫金设备
CN108519439B (zh) * 2018-04-20 2021-04-13 株洲时代电子技术有限公司 一种带磨耗补偿的自动对中控制系统

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IT1399922B1 (it) 2013-05-09
WO2011137988A1 (fr) 2011-11-10
EP2566799A1 (fr) 2013-03-13
ITMI20100801A1 (it) 2011-11-07
CN102883980B (zh) 2016-08-10
CN102883980A (zh) 2013-01-16

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