EP3610961B1 - Dispositif, installation de laminage et procédé de régulation d'une tension de la bande lors du laminage flexible de la bande métallique - Google Patents

Dispositif, installation de laminage et procédé de régulation d'une tension de la bande lors du laminage flexible de la bande métallique Download PDF

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Publication number
EP3610961B1
EP3610961B1 EP18189152.4A EP18189152A EP3610961B1 EP 3610961 B1 EP3610961 B1 EP 3610961B1 EP 18189152 A EP18189152 A EP 18189152A EP 3610961 B1 EP3610961 B1 EP 3610961B1
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EP
European Patent Office
Prior art keywords
hydraulic
strip
roller
metal strip
rolling
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.)
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Application number
EP18189152.4A
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German (de)
English (en)
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EP3610961A1 (fr
Inventor
Andre Sondermann
Andre Feldmann
Alexander EICK
Harald Eichner
Martin Böhmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Muhr und Bender KG
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Muhr und Bender KG
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Publication date
Application filed by Muhr und Bender KG filed Critical Muhr und Bender KG
Priority to ES18189152T priority Critical patent/ES2945411T3/es
Priority to EP18189152.4A priority patent/EP3610961B1/fr
Priority to PL18189152.4T priority patent/PL3610961T3/pl
Priority to PCT/EP2019/069604 priority patent/WO2020035261A1/fr
Priority to US17/265,831 priority patent/US11666957B2/en
Priority to CN201980053603.9A priority patent/CN112566733B/zh
Publication of EP3610961A1 publication Critical patent/EP3610961A1/fr
Application granted granted Critical
Publication of EP3610961B1 publication Critical patent/EP3610961B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48—Tension control; Compression control
    • B21B37/50—Tension control; Compression control by looper control
    • 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
    • B21B39/08—Braking or tensioning arrangements
    • B21B39/084—Looper devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/02—Tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness

Definitions

  • the invention relates to a device, a rolling plant with such a device and a method for controlling strip tension during flexible rolling of metal strip, the device having a roller arrangement with at least one dancer roller whose position can be adjusted to control the strip tension of the metal strip. Furthermore, the device has at least one hydraulic drive, which is coupled to the dancer roll for adjusting the latter, and a hydraulic tank for hydraulic fluid, which is connected to the hydraulic drive via a hydraulic supply line in a fluid-conducting manner. A controllable valve arrangement is arranged between the hydraulic tank and the hydraulic drive for controlling the hydraulic drive. The hydraulic drive is supplied with hydraulic fluid from the hydraulic tank by means of a hydraulic pump. The device also includes at least one hydraulic pressure accumulator for temporarily storing hydraulic fluid previously delivered by the hydraulic pump, the hydraulic pressure accumulator being arranged between the hydraulic pump and the valve arrangement.
  • a device of the type mentioned is in the GB 1 165 475 A shown.
  • the valve arrangement is transferred to a neutral position during the rolling process, in which both chambers of the hydraulic cylinder for moving the roll are connected to the pressure accumulator.
  • a constant pressure is thus applied to the hydraulic cylinder and the roller is pressed against the belt with a constant force.
  • the force exerted by a piston rod of the hydraulic cylinder depends on the difference between a force on the piston rod side Surface and a cylinder chamber side surface of a piston of the hydraulic cylinder.
  • So-called flexible rolling produces metal strips with periodically changing, defined different thicknesses.
  • the length and thickness of the rolled longitudinal thickness profile corresponds, for example, to the subsequent load case of a sheet metal component.
  • the rolling process can be designed as cold or hot strip rolling.
  • the strip material to be rolled is unwound from a coil, rolled and then wound up again under tension.
  • the corresponding rolling mills can be reversing mills, i. H. after a coil has passed from a first to a second coiling device, a next coil can be allowed to pass from the second to the first coiling device.
  • circuit boards are separated from this strip material and used for the production of components with different wall thicknesses.
  • the speed variation of the metal strip at relatively to compensate for low rolling speeds is to change the coiler speeds.
  • the speed of the reel is regulated depending on the position of the roll gap. If the roll gap opens and a thicker area is rolled, the speed of the coiler increases. If the roll gap is closed and the strip speed is reduced as a result of the process, the coiler speed is also reduced, as shown in the CN 101890434A is described.
  • the disadvantage of this method is the limitation of the coil weight and the rolling speed. Due to the mass inertia, the response time of the system increases with increasing mass. An increase in the mass of the coil leads to a necessary reduction in the rolling speed. On the other hand, an increased rolling speed causes a reduction in the mass of the coil, which increases the non-productive times of the plant.
  • DE 103 15 357 A1 discloses a rolling mill for rolling metal strip with a first coiling device for uncoiling, from which strip with a defined initial strip thickness can be unwound, with a roll stand that comprises at least two work rolls, between which a roll gap that can be controlled and/or regulated in terms of width is formed, and with a second coiling device for coiling, onto which metal strip with a reduced strip thickness compared to the defined initial strip thickness can be wound up.
  • the rolling installation has first strip storage means with a roller arrangement made up of a plurality of rollers between the first coiling device and the rolling stand.
  • the rolling installation also has second strip storage means with a roller arrangement made up of a plurality of rollers between the rolling stand and the second coiling device.
  • the position of the rollers of the first tape storage means and the second tape storage means can be changed relative to one another for tape storage, the metal tape being guided in the form of an "S" with at least partially superimposed arcs.
  • the movement of one of the rollers per strip storage means is adjusted hydraulically so that the "S" is distorted such that the length of the metal strip between an entry and an exit in the respective strip storage means is changed.
  • a compensating or dancer roll is arranged both between a coiler for uncoiling metal strip and the roll stand and between the roll stand and a coiler for coiling metal strip.
  • the strip material is looped around the compensating or dancer roll.
  • the compensating or dancer rolls are force-controlled at a constant peripheral speed of the rolls of the roll stand that determine the roll gap in order to apply a desired strip tension, with the reels being speed-controlled.
  • the compensating or dancer rolls are adjusted vertically and linearly in a direction perpendicular to the metal strip.
  • the object of the present invention is to provide a device, a rolling installation and a method for controlling strip tension during flexible rolling of metal strip, in which rapid and precise regulation of strip tension in the metal strip is made possible.
  • a device for controlling strip tension during the flexible rolling of metal strip having the following: a roller arrangement with at least one dancer roller, the position of which can be adjusted to regulate the strip tension of the metal strip, at least one hydraulic drive which is used to adjust the Dancer roller is coupled to this, a hydraulic tank for hydraulic fluid, which is connected to the hydraulic drive via a hydraulic supply line, a controllable valve arrangement between the hydraulic tank and the hydraulic drive for controlling the hydraulic drive, a hydraulic pump, with which the hydraulic drive is supplied with hydraulic fluid from the Hydraulic tank is supplied, and at least one hydraulic pressure accumulator for temporarily storing hydraulic fluid previously delivered by the hydraulic pump, the hydraulic pressure accumulator being arranged between the hydraulic pump and the valve arrangement.
  • a pressure sensor for determining the hydraulic pressure is arranged in the hydraulic drive, the device being set up to infer the strip tension in the metal strip from the hydraulic pressure and to control the valve arrangement as a function of the determined strip tension.
  • Rapid adjustment of the at least one dancer roll is particularly at high rolling speeds, for example over 25 m/min, and when using large coil masses of, for example, 5 to 25 kg/mm strip width with strip widths of 300 to 750 mm, not just by adjusting the To ensure delivery capacity of the hydraulic pump.
  • the invention therefore also provides a hydraulic pressure accumulator for temporarily storing hydraulic fluid previously delivered by the hydraulic pump, the hydraulic accumulator being arranged between the hydraulic pump and the valve arrangement.
  • a high volume of hydraulic fluid for adjusting the at least one dancer roll can be made available from this hydraulic pressure accumulator in a very short time, so that small fluctuations in the strip tension, if possible below 35%, can be achieved.
  • the hydraulic pressure accumulator is to be arranged as close as possible to the hydraulic units for adjusting the dancer roll, so that line losses between the hydraulic pressure accumulator and the adjusting unit for the dancer roll are kept low.
  • the hydraulic drive can be, for example, one or more hydraulic cylinders per dancer roll.
  • One double-acting hydraulic cylinder or two single-acting hydraulic cylinders can be used to adjust a dancer roll.
  • the hydraulic pressure is measured in the hydraulic supply line or in one or more cylinder chambers of the hydraulic cylinder.
  • At least one force sensor for example a tension measuring cell
  • at least one force sensor for example a tension measuring cell
  • a path measuring system for determining the position of the dancer roll can be arranged on the at least one dancer roll. This makes it possible to determine whether the dancer roll is already in the vicinity of an end position of its adjustment path to be able to adjust the speed of the metal strip if necessary.
  • the speed of the metal strip can be adjusted by changing the reel speed. Changing the speed of the metal strip tends to shift the position of the dancer roll.
  • the hydraulic drive is connected in a fluid-conducting manner to the hydraulic tank via a return, with at least one pulsation damper being arranged in the return.
  • at least one pulsation damper is arranged in the return.
  • the at least one pulsation damper is arranged as close as possible to the hydraulic cylinder.
  • a compensating tank can be arranged downstream of the at least one pulsation damper, in order to enable further expansion of the hydraulic fluid as close as possible to the hydraulic drive.
  • the flow of the hydraulic fluid, starting from the expansion tank to the hydraulic tank, can then be based purely on gravity, which counteracts further cavitation.
  • a check valve can be arranged between the compensation tank and the hydraulic tank.
  • the dancer roll is arranged so that it can be adjusted horizontally. In principle, however, an adjustment direction of the dancer roll that deviates from the horizontal direction is also conceivable.
  • the roller arrangement can have at least one further roller, the at least one dancer roller and the at least one further roller being arranged vertically one above the other in such a way that the metal strip is guided in the shape of an S or as an S-shaped loop .
  • the task is further accomplished by a rolling mill for the flexible rolling of metal strip solved, wherein the rolling mill has the following: a roll stand with two work rolls between which a width-adjustable roll gap is formed, a first strip guiding unit with a first coiler for uncoiling metal strip, a second strip guiding unit with a second coiler for coiling rolled metal strip.
  • a device according to the embodiments described above is arranged between the respective coiler and the roll stand.
  • Another solution to the problem is a method for controlling a strip tension during the flexible rolling of metal strip in a rolling mill with a device as described above, the valve arrangement being controlled as a function of the strip tension of the metal strip and the hydraulic drive being at least partially available for the short-term provision of hydraulic fluid is fed with hydraulic fluid previously stored in the at least one hydraulic accumulator.
  • the hydraulic pressure is measured in the hydraulic drive, the strip tension in the metal strip being inferred from the hydraulic pressure and the valve arrangement being controlled as a function of the strip tension determined.
  • the forces acting from the metal strip on a roller of the roller arrangement can be measured, with the strip tension in the metal strip being inferred from the determined forces and the valve arrangement being controlled as a function of the strip tension determined.
  • the position of the dancer roll of the at least one strip guide unit can be determined using a position measuring system, with the speed or rotational speed of the reel of the at least one strip guide unit being controlled depending on the position of the dancer roll. This can be used to change the position of the dancer roll.
  • this can shortly before reaching a defined first End position of the dancer roll, in which the metal strip length between an entry into the roller arrangement and an exit from the roller arrangement assumes a minimum value, the speed of the first reel can be increased.
  • the speed of the first reel can be reduced shortly before a defined second end position of the dancer roll is reached, in which the metal strip length between the entry into the roller arrangement and the exit from the roller arrangement assumes a maximum value. This avoids the dancer roll having to be adjusted beyond the two end positions and being kept in a central area as far as possible.
  • the conditions are the opposite. This means that shortly before the dancer roller reaches a defined first end position, at which the metal strip length between an entry into the roller arrangement and an exit from the roller arrangement assumes a maximum value, the speed of the second reel is increased. Shortly before a defined second end position of the dancer roll is reached, at which the metal strip length between the entry into the roller arrangement and the exit from the roller arrangement assumes a minimum value, the speed of the second reel is reduced.
  • the roll gap setting of the roll stand is determined, the valve arrangement being controlled in addition to the strip tension of the metal strip as a function of the roll gap. This enables pre-control as a function of the roll gap setting, which, in particular in combination with the control from the determination of the strip tension, ensures a short response time of the system.
  • FIG. 1 A preferred embodiment of a rolling mill according to the invention is explained in more detail below with reference to the drawings.
  • the drawing shows a sketch of a rolling mill according to the invention with a hydraulic adjustment device in a side view.
  • a roll stand 2 is built on a foundation 1, in which two work rolls 3, 4 and two lying one above the other in vertical alignment with the work rolls 3, 4 lying support rollers 5, 6 can be seen.
  • An adjustable and controllable roll gap 7 is formed between the work rolls 3, 4, through which a metal strip 8 runs from left to right in a production direction P in the illustration shown.
  • the rolling installation can be a reversing installation in which, after a coil has passed through in the production direction P, as shown in the figure, a next coil runs through the rolling installation in the opposite direction.
  • the metal strip 8 comes from a first reel device 9 with a left-hand rotating first reel 10 from which the metal strip 8 is unwound via the underside of the first reel 10 .
  • the metal strip 8 runs in the production direction P into a first roller arrangement 11 for storing a specific length of the metal strip 8 and for introducing a strip tension into the metal strip 8 in the form of a double roller arrangement, which has a movable upper dancer roller 12 and a fixed lower roller 13 has.
  • a horizontal double arrow indicates that the dancer roller 12 in the first roller arrangement 11 can be displaced horizontally in a controlled manner.
  • a movement of the dancer roller 12 changes the length of the loop of the metal strip 8 between an entry into the first roller arrangement 11 and an exit from the first roller arrangement 11.
  • the dotted line indicates the insertion position of the stationary roll 13, in which the metal strip 8 can be introduced into the roll stand 2 along the strip line 21, which is also shown in dashed lines.
  • the roller 13 pivots back into its operating position shown in solid line.
  • a second coiling device 15 for coiling the metal strip 8 which has a left-handed second reel 16 which winds up the rolled metal strip 8 via the underside.
  • a further second roller arrangement 17 for storing metal strip and applying a strip tension which has a movable upper dancer roller 18 and a fixed lower roller 19 .
  • first reel 10 and the second reel 16 can be designed to rotate to the left or right, with the metal strip 8 being able to be wound up or unwound from above or from below.
  • a horizontal double arrow indicates that the dancer roller 18 can be displaced in a controlled manner in relation to the fixed roller 19 in the second roller arrangement 17 . It is also conceivable here, analogously to the dancer roller 12 of the first roller arrangement 11, that the dancer roller 18 is displaced or pivoted in a different direction. By adjusting the dancer roller 18 of the second roller arrangement 17, the length of the loop of the metal strip 8 between an entry into the second roller arrangement 17 and an exit from the second roller arrangement 17 is changed.
  • the broken line shows the roller 19 in an insertion position (19 ⁇ ) pivoted by means of a rocker 20 from its operating position (19) via a belt line 21', which is used to insert a beginning of the belt along the belt line 21 again shown in dashed lines.
  • the roller 19 pivots back into its operating position (19) shown in solid lines.
  • a hydraulic drive for the dancer roller 18 of the second roller arrangement 17 is shown schematically in the figure, the hydraulic drive having a double-acting hydraulic cylinder 22 .
  • the dancer roller 18 is connected to a piston rod 23 that is adjustably arranged in a cylinder 24 of the hydraulic cylinder 22 and thereby adjustable in position.
  • the hydraulic cylinder 22 is actuated via a hydraulic actuating arrangement 25 .
  • the dancer roller 12 of the first roller arrangement 11 is adjustable identically to the dancer roller 18 of the second roller arrangement 17 via a hydraulic cylinder and a hydraulic actuating arrangement, the hydraulic cylinder and the hydraulic actuating arrangement for the dancer roller 12 of the first roller arrangement 11 not being shown for the sake of clarity.
  • the hydraulic actuation arrangement 25 for the second roller arrangement 17 is also described as representative of the hydraulic actuation arrangement of the first roller arrangement 11 .
  • a hydraulic tank 27 in which hydraulic fluid is stored. Furthermore, a hydraulic pump 28 is arranged in the roll cellar 26 , which is fluidly connected to the hydraulic tank 27 via a hydraulic line 37 and delivers hydraulic fluid from the hydraulic tank 27 in the direction of the hydraulic cylinder 22 . In principle, several hydraulic pumps 28 can also be provided.
  • the hydraulic cylinder 22 is in turn connected to the hydraulic tank 27 in a fluid-conducting manner on the outlet side.
  • a controllable valve arrangement 29 is arranged between the hydraulic cylinder 22 and the hydraulic pump 28 , which is fluidly connected to the hydraulic pump 28 via an inlet line 38 and which has a hydraulic servo valve 30 .
  • the valve arrangement is also connected to the hydraulic tank 27 by a return line 39 .
  • the servo valve 30 can be controlled in such a way that the feed line 38 from the hydraulic pump 28 is blocked, just as the return line 39 from the hydraulic cylinder 22 to the hydraulic tank 27 can be blocked.
  • the feed line 38 can optionally be fluidly connected to a first cylinder chamber 31 or a second cylinder chamber 32 of the hydraulic cylinder 22, with the return line 39 to the hydraulic tank 27 being connected to the other of the two cylinder chambers 32, 31.
  • a hydraulic pressure accumulator 33 is arranged in the feed line 38 between the hydraulic pump 28 and the valve arrangement 29 in order to temporarily store hydraulic fluid previously delivered by the hydraulic pump 28 and, if necessary, to Hydraulic cylinder 22 to promote.
  • the hydraulic pressure accumulator 33 is preferably arranged at a level of the foundation 1 or above and is also provided as close as possible to the hydraulic cylinder 22 in order to avoid line losses. In principle, it is also conceivable that several hydraulic pressure accumulators 33 are arranged in the feed line 38 .
  • a pulsation damper 34 is arranged in the return line 39 between the valve arrangement 29 and the hydraulic tank 27, it also being possible in principle for several pulsation dampers 34 to be provided.
  • the pulsation dampener 34 serves to equalize the pressure fluctuations in the return line from the valve assembly 29 in order to counteract cavitation.
  • a compensation tank 35 is provided between the pulsation damper 34 and the hydraulic tank 27, which ensures that hydraulic fluid can flow from the compensation tank 35 into the hydraulic tank 27 without pressure, so that no cavitation can occur in this area of the hydraulic line.
  • the pulsation damper 34 is arranged as close as possible to the hydraulic cylinder 22 . In principle, however, it is also conceivable that no pulsation damper is provided in the return line 39 .
  • a force sensor in the form of a tension measuring cell 35 is provided between the hydraulic cylinder 22 and the coupling thereof to the dancer roller 18 . With this, the tensile and compressive forces that occur between the hydraulic cylinder 22 and the dancer roll 18 can be determined in order to be able to deduce the strip tension within the metal strip 8.
  • the hydraulic cylinder 22 has a pressure sensor 36 with which the hydraulic pressure within the second cylinder chamber 32 can be determined.
  • the strip tension in the metal strip 8 can also be inferred from this determined pressure become.
  • the pressure sensor can also be located in the first cylinder space 31 .
  • several pressure sensors for example one for the first cylinder chamber 31 and one for the second cylinder chamber 32 or for the hydraulic supply lines to the hydraulic cylinder 22 can be provided.
  • the hydraulic cylinder 22 is also equipped with an integrated distance measuring system 40, via which the position of the dancer roll 18 can be determined.
  • the path measuring system 40 can be provided on another component that is moved with the dancer roller 18 .
  • the position of the dancer roll 18 can be used to determine whether the dancer roll 18 is already in an end position of its adjustment path in order to be able to adjust the speed of the metal strip 8 if necessary.
  • the speed of the metal strip 8 for example by changing the reel speed
  • the position of the dancer roll 18 can be changed. If the reel speed of the second reel 16 is increased, more metal strip 8 tends to be diverted from the second roller arrangement 17 so that a shorter loop of metal strip 8 has to be stored in the second roller arrangement 17 in order to achieve a constant strip tension.
  • this is achieved by moving the dancer roll 18 to the left. So if the dancer roll 18 of the second roller arrangement 17 is in an end position in the illustration on the right, the speed of the second reel 16 must be increased in order to tend to move the dancer roll 18 back into a middle position. If the dancer roll 18 has reached a left end position, the speed of the second reel 16 must be reduced accordingly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Metal Rolling (AREA)

Claims (13)

  1. Dispositif de régulation d'une tension de la bande lors du laminage flexible de la bande métallique, sachant que le dispositif comporte les éléments suivants :
    un agencement de rouleaux (11, 17) avec au moins un rouleau de tension (12, 18), dont la position peut être réglée pour la régulation de la tension de la bande de la bande métallique (8),
    au moins un système d'entraînement hydraulique (22), qui est couplé avec le rouleau de tension (12, 18) pour le réglage de celui-ci,
    un réservoir hydraulique (27) pour du liquide hydraulique, qui est relié en conduction de fluide au système d'entraînement hydraulique par une conduite d'alimentation hydraulique (38),
    un agencement de soupapes (29) pouvant être réglé entre le réservoir hydraulique (27) et le système d'entraînement hydraulique (22) pour commander le système d'entraînement hydraulique (22) ,
    une pompe hydraulique (28) avec laquelle le système d'entraînement hydraulique (22) est alimenté en liquide hydraulique à partir du réservoir hydraulique (27) et
    au moins un réservoir hydraulique sous pression (33) pour l'emmagasinage intermédiaire de liquide hydraulique véhiculé préalablement par la pompe hydraulique (28), sachant que le réservoir hydraulique sous pression (33) est disposé entre la pompe hydraulique (28) et l'agencement de soupapes (29),
    caractérisée en ce que
    dans le système d'entraînement hydraulique (22) est disposé un capteur de pression (36) pour déterminer la pression hydraulique, sachant que le dispositif est agencé pour définir la tension de la bande dans la bande métallique (8) par la pression hydraulique et pour commander l'agencement des soupapes (29) en fonction de la tension de la bande déterminée.
  2. Dispositif selon la revendication 1
    caractérisé en ce que
    le système d'entraînement hydraulique comprend un vérin hydraulique (22).
  3. Dispositif selon la revendications 1 ou 2,
    caractérisé en ce qu'
    au moins un capteur de force (35) pour déterminer les forces agissant sur le rouleau (18) par la bande métallique (8) est disposé sur un rouleau (12, 13, 18, 19) de l'agencement des rouleaux (11, 17).
  4. Dispositif selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce qu'
    un système de mesure de course (40) pour déterminer la position du rouleau de tension (12, 18) est disposé sur le rouleau de tension (12, 18).
  5. Dispositif selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que
    le système d'entraînement hydraulique (22) est relié en conduction de fluide par une conduite de renvoi hydraulique (39) au réservoir hydraulique (27) et
    en ce qu'un amortisseur de pulsations (34) est disposé dans la conduit de de renvoi (39).
  6. Dispositif selon la revendication 5,
    caractérisé en ce qu'
    un réservoir de compensation (35) est disposé en aval de l'amortisseur de pulsations (34).
  7. Dispositif selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    le rouleau de tension (12, 18) est disposé pouvant être réglé horizontalement.
  8. Dispositif selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    l'agencement de rouleaux (11, 17) comporte en plus d'au moins un rouleau de tension (12, 18) au moins un autre rouleau (13, 19), sachant qu'au moins un rouleau de tension (12, 18) et au moins un autre rouleau (13, 19) sont disposés verticalement l'un sur l'autre de telle manière que la bande métallique (8) est guidée sous la forme d'un S.
  9. Installation de laminage pour le laminage flexible d'une bande métallique (8), sachant que l'installation de laminage comporte les éléments suivants :
    une cage de laminoir (2) avec deux cylindres de travail (3, 4) entre lesquels est formé un écartement entre cylindres (7) réglable en largeur,
    une première unité de guidage de bande avec un premier bobinoir (10) pour dérouler la bande métallique (8),
    une deuxième unité de guidage de bande avec un deuxième bobinoir (16) pour enrouler la bande métallique (8),
    caractérisé en ce que
    dans au moins une des unités de guidage de bande est disposé un dispositif selon l'une quelconque des revendications 1 à 8 entre les bobinoirs (10, 16) respectifs et la cage de laminoirs (2).
  10. Procédé de régulation d'une tension de la bande lors du laminage flexible de la bande métallique (8) dans une installation de laminage avec un dispositif selon l'une quelconque des revendications 1 à 8, sachant que l'agencement des soupapes (29) est commandé en fonction de la tension de la bande de la bande métallique (8) et pour la fourniture rapide de liquide hydraulique, le système d'entraînement hydraulique (22) est alimenté au moins en partie avec un liquide hydraulique emmagasiné préalablement dans au moins un réservoir hydraulique sous pression (33),
    sachant que la pression hydraulique est mesurée sur le système d'entraînement hydraulique (22),
    sachant que l'on définit la tension de la bande dans la bande métallique (8) par la pression hydraulique et sachant que l'agencement de soupapes (29) est commandé en fonction de la tension de la bande déterminée.
  11. Procédé selon la revendication 10
    caractérisé en ce que
    les forces agissant par la bande métallique (8) sur un rouleau de l'agencement de rouleaux (11, 17) sont mesurées,
    en ce que l'on définit la tension de la bande dans la bande métallique (8) par les forces déterminées,
    en ce que l'agencement des soupapes (29) est commandé en fonction de la tension de la bande déterminée.
  12. Procédé selon la revendication 10 à 11 pour commander une installation de laminage selon la revendication 9,
    caractérisé en ce que
    la position du rouleau de tension (12, 18) d'au moins une des unités de guidage de bande est déterminée par un système de mesure de course (40) et
    en ce que la vitesse du bobinoir (10, 16) d'au moins une des unités de guidage de bande est commandée en fonction de la position du rouleau de tension (12, 18).
  13. Procédé selon l'une quelconque des revendications 10 à 12 pour commander une installation de laminage selon la revendication 9, caractérisé en ce que
    le réglage de l'écartement entre cylindres de la cage de laminoir (2) est déterminé et
    en ce que l'agencement des soupapes (29) est commandé en plus de la tension de la bande de la bande métallique (8) en fonction de l'écartement entre les cylindres (7) .
EP18189152.4A 2018-08-15 2018-08-15 Dispositif, installation de laminage et procédé de régulation d'une tension de la bande lors du laminage flexible de la bande métallique Active EP3610961B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES18189152T ES2945411T3 (es) 2018-08-15 2018-08-15 Dispositivo, instalación de laminación y procedimiento para la regulación de una tensión frontal durante el laminado flexible de una banda metálica
EP18189152.4A EP3610961B1 (fr) 2018-08-15 2018-08-15 Dispositif, installation de laminage et procédé de régulation d'une tension de la bande lors du laminage flexible de la bande métallique
PL18189152.4T PL3610961T3 (pl) 2018-08-15 2018-08-15 Urządzenie, walcarka i sposób regulacji naciągu taśmy w elastycznym walcowaniu taśmy metalowej
PCT/EP2019/069604 WO2020035261A1 (fr) 2018-08-15 2019-07-20 Dispositif, laminoir et procédé pour régler une tension de bande lors du laminage flexible d'une bande métallique
US17/265,831 US11666957B2 (en) 2018-08-15 2019-07-20 Controlling a strip tension during the flexible rolling of metal strip
CN201980053603.9A CN112566733B (zh) 2018-08-15 2019-07-20 用于在金属带的柔性轧制时调节带材张力的装置、轧制设备和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18189152.4A EP3610961B1 (fr) 2018-08-15 2018-08-15 Dispositif, installation de laminage et procédé de régulation d'une tension de la bande lors du laminage flexible de la bande métallique

Publications (2)

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EP3610961A1 EP3610961A1 (fr) 2020-02-19
EP3610961B1 true EP3610961B1 (fr) 2023-04-19

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Country Status (6)

Country Link
US (1) US11666957B2 (fr)
EP (1) EP3610961B1 (fr)
CN (1) CN112566733B (fr)
ES (1) ES2945411T3 (fr)
PL (1) PL3610961T3 (fr)
WO (1) WO2020035261A1 (fr)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN111687219A (zh) * 2020-06-08 2020-09-22 首钢集团有限公司 一种控制冷轧单机架模拟器张力的液压系统及其方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1281450A2 (fr) * 2001-08-02 2003-02-05 Mitsubishi Heavy Industries, Ltd. Laminoir et procédé pour son exploitation

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US2526296A (en) * 1943-08-12 1950-10-17 United Eng Foundry Co Method and apparatus for processing strip metal
GB1165475A (en) * 1968-03-06 1969-10-01 Inst Chernoi Metallurgii Apparatus for Regulating the Tension of a Strip between Roll Stands in a Continuous Rolling Mill
JPH01205815A (ja) * 1988-02-15 1989-08-18 Kobe Steel Ltd 巻取りリール回転張力変動制御方法および装置
CN1067606C (zh) * 1994-10-08 2001-06-27 川崎制铁株式会社 连续式轧机中的机架间张力控制器
JPH1034204A (ja) * 1996-07-29 1998-02-10 Kawasaki Steel Corp 可逆圧延機における張力制御装置
DE10004532A1 (de) 2000-02-02 2001-08-30 Josef Froehling Gmbh Walzwerks Vorrichtung zum Walzen von Bändern mit periodisch veränderlicher Bandenddicke
DE10133756A1 (de) * 2001-07-11 2003-01-30 Sms Demag Ag Kaltwalzwerk sowie Verfahren zum Kaltwalzen von metallischem Band
DE10310399B4 (de) * 2003-03-07 2005-03-03 Sundwig Gmbh Vorrichtung und Verfahren zum Walzen von Metallbändern
DE10315357B4 (de) 2003-04-03 2005-05-25 Muhr Und Bender Kg Verfahren zum Walzen und Walzanlage zum Walzen von Metallband
JP3761530B2 (ja) * 2003-04-07 2006-03-29 川崎重工業株式会社 スイングレバー装置
CN100525943C (zh) * 2007-01-09 2009-08-12 东北大学 实现带钢轧制恒张力控制的比例控制液压系统
AT507087B1 (de) * 2008-12-05 2010-02-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zur semi-aktiven reduktion von druckschwingungen in einem hydrauliksystem
CN101890434B (zh) 2010-07-06 2012-05-23 东北大学 周期变厚度带材轧制速度的控制方法
CN103722026B (zh) 2013-12-24 2017-05-17 河南万达铝业有限公司 一种张力辊张力测试方法
CN105858307A (zh) * 2016-05-27 2016-08-17 徐州市旭松新型材料有限公司 一种多反馈输入的收料张力控制装置

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Also Published As

Publication number Publication date
US11666957B2 (en) 2023-06-06
CN112566733B (zh) 2023-09-01
US20210291244A1 (en) 2021-09-23
CN112566733A (zh) 2021-03-26
PL3610961T3 (pl) 2023-09-11
ES2945411T3 (es) 2023-07-03
EP3610961A1 (fr) 2020-02-19
WO2020035261A1 (fr) 2020-02-20

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