EP4065295B1 - Système et procédé de laminage flexible d'un matériau en bande métallique - Google Patents

Système et procédé de laminage flexible d'un matériau en bande métallique Download PDF

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Publication number
EP4065295B1
EP4065295B1 EP20816160.4A EP20816160A EP4065295B1 EP 4065295 B1 EP4065295 B1 EP 4065295B1 EP 20816160 A EP20816160 A EP 20816160A EP 4065295 B1 EP4065295 B1 EP 4065295B1
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EP
European Patent Office
Prior art keywords
strip material
strip
drive
unit
motor
Prior art date
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Application number
EP20816160.4A
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German (de)
English (en)
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EP4065295C0 (fr
EP4065295A1 (fr
Inventor
Stephan PRITZ
Stefan Hörth
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Muhr und Bender KG
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Muhr und Bender KG
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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
    • B21B37/58—Roll-force control; Roll-gap control
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • 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 program
    • B21B37/26—Automatic variation of thickness according to a predetermined program for obtaining one strip having successive lengths of different constant thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/003—Regulation of tension or speed; Braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/345—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the tension or advance of the material
    • B21C47/3458—Endlessly revolving chain systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0028—Drawing the rolled product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2205/00—Particular shaped rolled products
    • B21B2205/02—Tailored blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression

Definitions

  • the invention relates to a device and a method for flexible rolling of metallic strip material.
  • strip material with essentially uniform sheet thickness is rolled out into strip material with variable sheet thickness along the length by changing the roll gap during the process.
  • the sections of different thicknesses created by flexible rolling extend transversely to the longitudinal direction or to the rolling direction of the strip material.
  • the strip material can easily be wound back into a coil and sent for further processing elsewhere, or it can be further processed directly, for example by cutting the strip material to length into individual sheet metal elements.
  • a method for flexible rolling of metal strip is known, with a first reel device for unwinding, from which strip with a defined strip output thickness is unwound, a rolling stand with an adjustable roll gap, and a second reel device for reeling, onto which the rolled strip with a thickness opposite to the strip output thickness is unwound reduced strip end thickness is wound up.
  • the tape storage means each comprise a plurality of rollers over which the tape material is guided in the shape of an "S" with at least partially superimposed sheets.
  • the S is distorted in such a way that that the length of the metal band between the inlet and the outlet into or out of the band storage means is changed.
  • Such tape storage devices with multiple rolls are also referred to as a dancer system.
  • the device comprises two controllable chain drive units, each with an endless chain, between which the long material is passed, two controllable pressing units, each of which exerts a contact force on the associated chain in the direction of long material, and a controllable actuating unit, which is mechanically connected to the chain drive units and this can move in the longitudinal direction of the long material.
  • the actuating unit includes a length-variable linear drive in the form of a hydraulic piston-cylinder unit.
  • the chain drive units By actuating the piston-cylinder unit, the chain drive units are moved relative to a stationary component in or against the feed direction of the strip material.
  • the chain drive units each include a carrier, a drive roller, a deflection roller and a motor that drives the respective chain evenly.
  • From the DE 299 09 850 U1 is a device for pulling or braking metal strips between two oppositely arranged, endlessly rotating chain systems driven by sprockets.
  • the chain systems tension the belt with cart-like roller blocks that are guided on ledges in a straight driving area.
  • the present invention is based on the object of proposing a system for the flexible rolling of metallic strip material, which is of simple construction, has a small space requirement and which, if necessary, can be integrated into a process chain with further processing devices.
  • the task is also to propose a corresponding method that enables efficient production of flexibly rolled strip material or parts made from it.
  • a system for processing metallic strip material comprising: a feed unit for feeding metallic tape material; a belt drive device which has at least one controllable traction device drive unit with at least one motor and an endless traction device that can be driven by the motor, as well as a pressing unit for pressing the traction device against the belt material, the drive power of the motor and the contact pressure of the pressing unit being variably adjustable during operation, so that a driving force acting on the strip material by the traction means with frictional contact can be variably adjusted; a rolling device for flexibly rolling the strip material to produce a variable sheet thickness over the length of the strip material; a measuring device, in particular a tension measuring device, which is arranged or designed to detect a physical quantity acting on the strip material, in particular an inlet tensile force; wherein the drive power of the motor of the belt drive device can be regulated based on the physical quantity determined by the measuring device.
  • the traction drive unit is held stationary, in particular in the longitudinal direction, for example fixed to a support element or housing.
  • the drive power or drive torque of the motor, which rotates the endless traction means By changing the drive power or drive torque of the motor, which rotates the endless traction means, the driving force acting on the strip material from the traction means can be variably adjusted as required.
  • the inlet tensile force i.e. the tensile force acting on the strip material on the inlet side of the rolling device, can be regulated directly by controlling the drive power of the motor.
  • the belt drive device There are no or only small displacement paths of the belt drive device necessary, which has a positive overall effect on the space required by the system. Even if there is little space available, the system can be integrated into a process chain with additional processing devices. In particular, further processing steps can be carried out upstream and/or downstream, since the train in front of the train drive unit in front of the rolling device or after the train drive unit behind the rolling device is independent of the process train in the area of the rolling device.
  • a strip storage unit is used in front of the rolling device, other otherwise required units, such as a dancer unit or a loop unit, may possibly be omitted.
  • the hydraulic adjustment of the work rolls is the main process, which is possible via thickness control, position control or mass flow control. This creates strong variations Process variables tensile force, speed and rolling force.
  • a traction drive unit is understood to mean, in particular, a drive unit that transmits drive power (speeds and torques) with the help of flexible or flexible machine elements.
  • a flexible machine element can essentially transmit tensile forces and is therefore also referred to as a traction device.
  • positive traction means such as a chain or a toothed belt, are used, which always have the same peripheral speed over the circumference.
  • a drive unit with a chain as traction means can be referred to as a chain drive unit; a drive unit with a toothed belt corresponding to a toothed belt drive unit.
  • a second belt drive device can be arranged behind the rolling device in the direction of movement of the strip material.
  • the use of a second belt drive device has the advantage that the processing or transport direction of the belt material can also be reversed.
  • the second belt drive device is in front of the rolling device in the direction of movement of the strip material, and the first belt drive device is behind it.
  • the second belt drive device can be supported against a stationary component by means of at least one spring unit.
  • the drive power of the motor of the second belt drive device can be kept constant.
  • Any elements that are suitable for absorbing, storing and releasing external forces can be used as the spring unit.
  • mechanical, hydraulic, electrical or pneumatic springs or energy storage devices can be used as spring units.
  • the speeds of the two devices can be adjusted accordingly the volume constancy of the strip material can be adjusted.
  • a control with constant stretching is also possible, which means that the drive speed of the drive device of the strip material downstream in the transport direction of the strip material is slightly faster than the drive speed of the upstream drive device.
  • the difference in speed between the two drive devices, taking into account the constant volume, can be up to 3%, for example.
  • the two belt drive devices are preferably designed the same in terms of structure and functionality. It is therefore understood that all details described within the scope of the present disclosure in relation to one of the two tape drive devices or their individual components can also apply equally to the second tape drive device, unless otherwise stated.
  • the second belt drive device also includes at least one controllable traction device drive unit with a motor, an endless traction device that can be driven in rotation by the motor, and a pressing unit for pressing the traction device against the belt material.
  • the traction device includes in particular positive machine elements, such as a chain or a toothed belt.
  • the tensile force acting on the strip material can be regulated as needed to support the rolling process to produce the desired thickness profile in the strip material.
  • the measuring device can be designed as a tension measuring device, which can be arranged between the belt drive device and the rolling device in order to record the infeed tensile force acting on the strip material as a physical quantity.
  • a force measuring device can be provided which can detect a signal representing the rolling force of the rolling device as a physical quantity.
  • a position measuring device can be provided, which is connected to an actuating unit for a Roller can be arranged in order to detect the position of an actuating unit for a roller as a physical quantity.
  • a second tension measuring device can be arranged between the rolling device and the second belt drive device in order to detect the exit tensile force acting on the strip material on the exit side.
  • the drive power of the motor of the second belt drive device can be regulated in particular on the basis of the run-out tensile force determined by the second tension measuring device.
  • a tape storage device can be arranged between the second tape drive device and a downstream processing device, in which the tape material can be stored as it passes between a storage inlet and a storage outlet.
  • the contact force of the respective pressing unit can be regulated based on the tensile force determined by the respective tension measuring device.
  • the drive power of the motor and/or the contact force of the pressing unit can be variably regulated during operation, so that a target tensile force acting on the strip material by the traction means under frictional contact can be variably adjusted.
  • a tape storage device in which the tape material can be stored as it passes between a storage inlet and a storage outlet.
  • a dancer unit and/or a sling unit can be dispensed with if necessary.
  • the tape storage device may include a vertical storage, a horizontal storage or a loop storage.
  • a vertical storage is characterized in that strip material is stored in the vertical direction, with the space requirement in the horizontal direction being correspondingly small.
  • a horizontal storage device stores strip material in a horizontal direction, although the space required in a vertical direction is correspondingly small.
  • the system can have two controllable traction drive units, between which the strip material can be passed through under frictional contact is, so that the band material is moved during operation of the traction drive units in the direction of movement of the traction means sections in contact with the band material.
  • the two train drive units can be designed the same in terms of structure and functionality. When using two motors per drive unit, there are a total of four motors for the belt drive device.
  • the two traction means drive units can each have an associated pressing unit, which each exerts a contact pressure on the respective traction means in the direction of the strip material.
  • a single pressing unit can also be provided, which can press both traction drive units towards each other or move them away from each other.
  • a pressing unit can, for example, have one or more linear drives, in particular a piston-cylinder unit, which can generate a force transverse to the belt direction.
  • One or more further processing devices can be provided.
  • a processing device can be arranged between the feed unit and the belt drive device, in particular a belt cleaning unit.
  • the strip material can be driven by means of a second belt drive device, which is arranged behind the rolling device in the direction of movement of the strip material.
  • the second belt drive device can have at least one controllable traction device drive unit with a motor, an endless traction device that can be driven by the motor and a pressing unit for pressing the traction device against the belt material.
  • the run-out tensile force acting on the strip material can be determined by means of a second tension measuring device which is arranged between the rolling device and the second belt drive device.
  • the driving power of the motor of the second tape drive device can be set to a constant value.
  • the contact pressure of the pressure unit of the second belt drive device can be regulated depending on the run-out tensile force determined by the second tension measuring device.
  • the Figure 1 shows a system 2 according to the invention for processing metallic strip material.
  • the system 2 has a feed unit 3 for feeding metallic strip material 4, a belt drive device 5, a rolling device 6 for flexible rolling of the strip material 4 and a tension measuring device 7.
  • a strip processing unit 8 and/or a strip storage unit 9 can be provided between the feed unit 3 and the rolling device 6.
  • the feed unit 3 can be any unit that provides or supplies the strip material 4 for the further process steps.
  • a reel in particular a lightweight reel, can be used, which can be designed to essentially carry the coil and one for the Subsequent processes require winding tension to be applied, which can in particular be smaller than 10 N/mm 2 , but does not have to apply winding tensions that go beyond this.
  • An optional downstream strip processing unit 8 can be integrated into the system according to technical requirements.
  • a cleaning unit and/or a welding unit for longitudinal or transverse welding of two supplied coils can be provided as an additional strip processing unit.
  • a strip storage unit 9 can optionally be provided between the feed unit 3 and the rolling unit 6, which is designed to temporarily store sections of the strip material 4 as they pass between a storage inlet and a storage outlet and thus to compensate for speed fluctuations during the transport of the strip material 4.
  • the tape storage unit 9 is designed here as a vertical storage, although other embodiments are also possible.
  • the drive wheels 15, 15' can be driven in rotation by the associated motor 13, 13' and transmit torque introduced by the motor to the respective traction means 14, 14'.
  • suitable form engagement means can be provided on the drive roller 15, 15', which engage in a form-fitting manner in opposite form engagement means of the traction means 14, 14'.
  • the pressing units 11, 11' can also be mounted on the carrier 17 or supported against it.
  • a carrier 17 is provided for both traction drive units 10, 10' and pressing units 11, 11', although an embodiment with separate carriers for the upper and lower units is also possible.
  • the first motor 13 for driving the first traction means 14 and the second motor 13 'for driving the second traction means 14' are operated in particular synchronously, so that the two traction means 14, 14' can be moved with the same rotational speed v14, v14 ⁇ .
  • the traction means 14, 14' each have a large number of interconnected traction means members.
  • Each traction element can have one or more friction bodies 18, 18 ', which are designed to come into frictional contact with the band material 4 during the rotating movement of the traction means 14, 14' and to move the band material 4 clamped between the two opposing traction means arrangements in the feed direction R.
  • the friction bodies 18, 18 ' are designed or coordinated with the material of the band material so that static friction is generated between the friction body and the band material 4.
  • the friction lining can in particular contain metallic components such as copper, brass, iron, gray cast iron, each as powder or fibers, mineral fibers and / or sulfides of iron, copper, antimony, zinc, tin , molybdenum and / or components made of plastic, which can be embedded in a carrier material, in particular made of rubber.
  • metallic components such as copper, brass, iron, gray cast iron, each as powder or fibers, mineral fibers and / or sulfides of iron, copper, antimony, zinc, tin , molybdenum and / or components made of plastic, which can be embedded in a carrier material, in particular made of rubber.
  • the tension measuring device 7 is provided, which is designed to measure the tensile forces F4 acting on the belt material 4 between the belt drive device 5 and the rolling device 6.
  • the tension measuring device 7 can also be arranged at another suitable location, for example in the belt drive device 5.
  • the tensile forces F4 determined here serve as an input variable for regulating the drive power of the motors 13, 13 'of the belt drive device 5, although it is understood that other input variables are added can.
  • the rolling unit 6 is provided for flexible rolling.
  • the strip material 4 which has a largely constant sheet thickness over its length before flexible rolling, is rolled by means of rollers 21, 21 'in such a way that it is along the rolling direction variable sheet thickness over the length.
  • the work rolls 21, 21' are supported by support rolls 22, 22'.
  • the rolling device 6 exerts a rolling force F6 on the strip material 4, the work rolls 21, 21 'being supported by the support rolls with a supporting force that can correspond to the rolling force.
  • the process is monitored and controlled, and the data determined by a strip thickness measurement 23 can be used as an input signal for controlling the rollers 21, 21 '.
  • the strip material 4 has different thicknesses in the rolling direction.
  • the strip material can be rolled out, starting from the substrate with a uniform thickness over the length, with rolling rates of 3% to over 40%, in particular in sections even over 50%.
  • the initial thickness of the substrate can be, for example, between 0.7 mm and 4.0 mm, without being limited to this.
  • the flexibly rolled material has correspondingly reduced thicker and thinner strip sections, which are manufactured according to a specified target thickness profile.
  • An advantage of the system 2 is that by means of the belt drive device 5 with traction drive units 10, 10 'and regulated drive power M1, M2 of the motors 13, 13' or variable drive torque, a very compact arrangement for generating the variable counter-traction force required for flexible rolling is provided . This results in a relatively short overall size of the system, regardless of any downstream processes. Furthermore, the belt drive device 5 enables the setting of a constant rolling tensile force F4 on the inlet side of the rolling unit 4 by directly regulating the drive power via rapid acceleration or deceleration. This is important in flexible rolling because, due to the change in the thickness of the strip material, a cyclical one occurs in terms of process technology Belt jam results.
  • a special feature of the present embodiment Figure 2 is that a belt drive device 5 with traction drive units 10, 10 'is used in the processing direction of the strip material 4 behind the flexible rolling device 6.
  • the belt drive device 5 corresponds to that in terms of structure and functionality Figure 1 , so that abbreviated reference is made to the above description.
  • a tension measuring device 7' can be arranged in order to detect the exit tensile force F7 acting on the strip material 4 on the exit side.
  • the drive power or the drive torque M3, M4 of the motors 13, 13' of the downstream belt drive device 5' can be regulated in particular on the basis of the run-out tensile force F7 determined by the tension measuring device 7'.
  • the belt drive device 5' is fixed in place on a standing component, for example on a part of a building, which is shown schematically by the bearings 33, 33'.
  • a further processing unit 26 can be provided, for example a reel, a forming tool, in particular for producing pipes, and / or a cutting device for separating the strip material or a pipe made from it.
  • the controlled variable can also be a rolling force F6 that is as constant as possible.
  • the drive power M1, M2 or the torque of the motors 15, 15 ' is dynamically changed as a manipulated variable in order to achieve a reduction in rolling force (F6) by increasing the tension (F4, F7) or an increase in rolling force by reducing the tension.
  • the speed v3 of the strip material 3 and the tensile force F4 or F7 result accordingly.
  • the rolling force F6 is determined continuously by means of a rolling force measuring unit 35.
  • Figure 3 Another embodiment is in Figure 3 shown schematically. According to the order Figure 3 largely corresponds to a combination of those according to Figure 1 and Figure 2 , so that reference is made to the above description with regard to the similarities. The same or corresponding details are given the same reference numbers as in Figure 1 and Figure 2 .
  • the present embodiment is characterized in that a first belt drive device 5 is arranged in front of the flexible rolling device 6 and a second belt drive device 5 'is arranged behind the rolling device 6.
  • the system includes 2 for processing metallic strip material according to Figure 3 in the processing direction of the band material 4, in particular the following units: a feed unit 3, a first band driver 27, a first band storage unit 9, a first roller unit 28, a first band drive device 5, a first tension measuring device 7, a first measuring unit 23 for measuring the band thickness and / or band speed , a first squeezing unit 29, a rolling device 6 for flexible rolling, a second squeezing unit 29 ', a second measuring unit 29 for measuring the strip thickness and / or strip speed, a second tension measuring device 7', a second strip drive device 5, a second roller unit 28, a second Band storage unit 9, a second band driver 27 and/or a third measuring unit 23" for measuring the band thickness and/or band speed.
  • the squeezing units 29, 29' serve to squeeze out
  • the first belt drive device 5 can be as in Figure 1 be carried out, the description of which is referred to in this respect.
  • the second belt drive device 5 ' can be as in Figure 2 be carried out, the description of which is referred to in this respect.
  • the system according to Figure 3 has a particularly short system length, which in particular can be less than 25 meters, due to the use of the belt drive devices 5, 5 'with traction drives 10, 10' and drive control via the rotary motors 13, 13'.
  • Another processing unit can follow the third measuring unit 23", for example a cutting or welding unit.
  • FIG. 4 shows an attachment 2 in an alternative or supplementary embodiment. Individual units according to the embodiment Figure 4 correspond to those from Figure 1 , so that reference is made to the above description with regard to the similarities. The same or corresponding details are given the same reference numbers as in Figure 1 .
  • a special feature of the present embodiment Figure 4 is the use of a belt drive device 5 with traction drive units 10, 10 'in the processing direction of the strip material 4 behind the flexible rolling device 6.
  • the belt drive device 5 corresponds to that in terms of structure and functionality Figure 1 , so that abbreviated reference is made to the above description.
  • a tension measuring device 7' can be arranged in order to detect the exit tensile force F7 acting on the strip material 4 on the exit side.
  • the drive power M3, M4 of the motors 13, 13' of the downstream belt drive device 5' can be regulated in particular on the basis of the run-out tensile force F7 determined by the tension measuring device 7'.
  • the buffering of the strip jam resulting from the flexible rolling process on the outlet side of the roll gap, that is, behind the rolling unit 6, can be realized via the elasticity of the traction drive arrangement in conjunction with the spring arrangement 24, 24 '. Since the strip jam or the fluctuations in the strip tensile forces F7, F8 on the outlet side of the rolling device are significantly lower than before, dynamic control of the drive power of the motors 13, 13 'can be dispensed with. Rather, the motors can be operated here with constant drive power or constant drive torque M3, M4.
  • a pressing unit 11, 11' is provided on each side of the carrier 17, which can jointly act on the traction drive units 10, 10' toward or away from each other.
  • each of the two pressing units 11, 11' engages on the upper support 34 on the one hand and on the lower support 34' on the other hand in order to be able to press them against each other in the vertical direction H and thus a contact pressure F1, F2 on the between the traction drive units 10, 10'. carried out band material 4 to be able to exercise.
  • the supports 34, 34 ' are each height-adjustable, that is, guided in the transverse direction H in the frame 17 and fixed in the longitudinal direction L in the frame.
  • the forces F1, F2 acting between the supports 34, 34' correspond to one another.
  • the pressing units 11, 11' can be used as linear drives, in particular as hydraulic piston-cylinder units.
  • a strip storage unit can be dispensed with.
  • the belt jam which is significantly smaller here, can optionally be achieved by using a belt drive device 5 'according to Figure 4 are buffered via the elasticity of the traction device arrangement in connection with the spring arrangement 24, 24 '.
  • FIG. 7 shows a tape storage unit 9 for a system 2 according to the invention in a further embodiment.
  • the tape storage unit 9 is here designed in the form of a horizontal storage and comprises a plurality of rollers 30, 30 ', of which at least one is movable in a horizontal plane.
  • the horizontal movement of the roller(s) 30' changes the path that can be covered by the strip material between the inlet roller(s) 31 and the outlet roller(s) 32. In this way, a band storage is formed in which the band jam created during flexible rolling can be buffered during the machining process.
  • the tape storage unit 9 or the displacement paths of the displaceable roller(s) 30' are designed in particular in such a way that a length compensation of at least 100 mm and/or up to 1000 mm is made possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Claims (15)

  1. Installation pour traiter un matériau métallique en bande, comprenant :
    une unité d'alimentation (3) pour alimenter en matériau métallique en bande (4),
    un dispositif d'entraînement de bande (5, 5'), qui comprend au moins une unité d'entraînement de moyen de traction (10, 10') avec au moins un moteur (13, 13') et un moyen de traction (14, 14') sans fin pouvant être entraîné en rotation par le moteur (13, 13'), ainsi qu'une unité de pression (11, 11') pour presser le moyen de traction (14, 14') contre le matériau en bande (4), dans lequel une force d'entraînement pouvant être transmise au matériau en bande (4) par le moyen de traction (14, 14') en contact de frottement avec le matériau en bande (4) ;
    un dispositif de laminage (6) pour le laminage flexible du matériau en bande, qui est conçu pour produire dans le matériau en bande une épaisseur de tôle variable sur la longueur du matériau en bande en modifiant la fente de laminage,
    un dispositif de mesure (7, 7' ; 35 ; 36) qui est disposé pour détecter une grandeur physique (F4, F6) agissant sur le matériau en bande (4),
    caractérisé en ce
    que l'au moins une unité d'entraînement de moyen de traction (10, 10') est fixée de manière stationnaire sur une partie stationnaire (17) dans la direction longitudinale du matériau en bande (4), et
    qu'un couple d'entraînement du moteur (13, 13') est réglable sur la base de la grandeur physique (F4, F6, s) déterminée par le dispositif de mesure (7, 7' ; 35; 36), la force d'entraînement agissant sur le matériau en bande (4) par le moyen de traction (14, 14') étant réglable de manière variable par modification du couple d'entraînement du moteur (13, 13').
  2. Installation selon la revendication 1,
    caractérisé en ce
    que, comme dispositif de mesure, au moins l'un
    a) d'un dispositif de mesure de traction (7, 7'), qui est disposé entre le dispositif d'entraînement de bande (5, 5') et le dispositif de laminage (6), pour détecter, comme grandeur physique, une force de traction d'entrée (F4) agissant sur le matériau en bande (4),
    b) un dispositif de mesure de force (35), qui est disposé sur un cylindre (21, 22) du dispositif de laminage (6), afin de détecter, en tant que grandeur physique, une force de laminage (F6) du dispositif de laminage (6) agissant sur le matériau en bande (4),
    c) un dispositif de mesure de position (36), qui est disposé sur une unité de réglage du dispositif de laminage (6), pour détecter, en tant que grandeur physique, une position de réglage (s) d'un cylindre (21, 22 ; 21', 22') agissant sur le matériau en bande (4),
    est prévue.
  3. Installation selon l'une des revendications 1 ou 2,
    caractérisé en ce
    qu'un deuxième dispositif d'entraînement de bande (5') est disposé derrière le dispositif de laminage (6) dans le sens de déplacement (R) du matériau en bande (4), le deuxième dispositif d'entraînement de bande présentant au moins une unité d'entraînement de moyen de traction (10, 10') commandable avec un moteur (13, 13'), un moyen de traction sans fin (14, 14') pouvant être entraîné en rotation par le moteur (13, 13') ainsi qu'une unité de pressage (11, 11') pour presser le moyen de traction (14, 14') contre le matériau en bande (4); un deuxième dispositif de mesure de traction (7') étant disposé entre le dispositif de laminage (6) et le deuxième dispositif d'entraînement de bande (5'), afin de détecter la force de traction de sortie (F7) agissant du côté de la sortie sur le matériau en bande (4),
    dans lequel la puissance d'entraînement du moteur (13, 13') du deuxième dispositif d'entraînement de bande (5') est réglée de manière variable sur la base de la force de traction de sortie (F7) déterminée par le deuxième dispositif de mesure de traction (7'),
    dans lequel, pour au moins l'un des premier et deuxième dispositifs de mesure de traction (7, 7'), la force de pression (F1, F2, F5, F6) de l'unité de pression respective (11, 11') est réglée de manière variable sur la base de la force de traction (F4, F7) déterminée par le dispositif de mesure de traction respectif (7, 7').
  4. Installation selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce
    qu'il est prévu un dispositif de stockage de bande (9, 9') dans lequel le matériau en bande peut être stocké lors de son passage entre une entrée de stockage (31) et une sortie de stockage (32),
    le dispositif de stockage de bande (9, 9') présentant en particulier un stockage vertical, un stockage horizontal ou un stockage en boucle.
  5. Installation selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce
    que le moteur (13, 13') est conçu comme un moteur hydraulique ou un moteur électrique, en particulier comme un entraînement direct.
  6. Installation selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce
    que le dispositif d'entraînement de bande (5, 5') est conçu pour produire des forces de traction d'au moins 1 N/mm2 et/ou de moins de 120 N/mm2 par rapport à la surface de section transversale du matériau de bande (4),
    dans lequel, en cas d'utilisation d'un matériau en bande (4) en acier, le dispositif d'entraînement de bande (5, 5') est notamment conçu pour produire des forces de traction d'au moins 50 N/mm2 par rapport à la surface de la section transversale du matériau en bande (4).
  7. Installation selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce
    en ce que le dispositif d'entraînement de bande (5, 5') est conçu pour accélérer et/ou freiner le matériau en bande (4) avec au moins 3 m/sec2.
  8. Installation selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce
    que le dispositif d'entraînement de bande (5, 5') comprend deux unités d'entraînement de moyen de traction (10, 10'), les unités d'entraînement de moyen de traction (10, 10') présentant chacune un premier axe pouvant être entraîné, qui peut être entraîné en rotation par le moteur (13, 13'), afin de transmettre un couple d'entraînement au moyen de traction (14, 14'), et un deuxième axe qui est entraîné en rotation par le moyen de traction (14, 14').
  9. Installation selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce
    qu'il est prévu deux unités d'entraînement de moyens de traction (10, 10') pouvant être commandées, entre lesquelles le matériau en bande (4) peut être passé en contact de friction, de sorte que le matériau en bande, lors du fonctionnement des unités d'entraînement de moyens de traction (10, 10') est déplacé dans la direction de déplacement des sections de moyen de traction (19, 19') se trouvant en contact avec le matériau en bande (4), au moins une unité de pression (11, 11') étant prévue, laquelle exerce une force de pression (F1, F2, F5, F6) sur le moyen de traction respectif (14, 14') en direction du matériau en bande (4).
  10. Installation selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce
    qu'un dispositif de traitement (8) est disposé entre l'unité d'alimentation (3) et le dispositif d'entraînement de bande (5, 5'), en particulier une unité de nettoyage de bande.
  11. Installation selon l'une quelconque des revendications 3 à 10,
    caractérisé en ce
    que le deuxième dispositif d'entraînement de bande (5, 5') est soutenu au moins au moyen d'une unité à ressort (24, 24') contre un composant stationnaire (25, 25'), la puissance du moteur (13, 13') du deuxième dispositif d'entraînement de bande (5, 5') pouvant être maintenue constante.
  12. Procédé de traitement d'un matériau métallique en bande, comprenant :
    entraîner le matériau en bande (4) au moyen d'un dispositif d'entraînement de bande (5, 5'), le matériau en bande (4) étant déroulé d'une unité d'alimentation (3) et amené à un dispositif de laminage (6) en aval pour le laminage flexible, le dispositif d'entraînement de bande (5, 5') présente au moins une unité d'entraînement de moyen de traction (10, 10') commandable avec un moteur (13, 13') et un moyen de traction sans fin (14, 14') pouvant être entraîné en rotation par le moteur (13, 13'), ainsi qu'une unité de pressage (11, 11') pour presser le moyen de traction (14, 14') contre le matériau en bande (4) ;
    détecter une grandeur physique (F4, F6, s) agissant sur le matériau en bande (4) au moyen d'un dispositif de mesure (7, 7' ; 35 ; 36) qui est disposé sur le dispositif de laminage (6) pour le laminage flexible ou sur sa périphérie ;
    caractérisé en ce
    que l'au moins une unité d'entraînement de moyen de traction (10, 10') est fixée de manière stationnaire dans la direction longitudinale (L) du matériau en bande (4) sur une partie stationnaire (17), et
    que le couple d'entraînement du moteur (13, 13') est régulé en fonction de la grandeur physique (F4, F6, s) déterminée par le dispositif de mesure (7, 7; 35; 36), la force d'entraînement agissant sur le matériau en bande (4) par le moyen de traction (14, 14') étant modifiée par variation du couple d'entraînement du moteur (13, 13').
  13. Procédé selon la revendication 12,
    caractérisé en ce
    que, en tant que dispositif de mesure (7, 7'), au moins un d'un dispositif de mesure de traction, afin de détecter, en tant que grandeur physique, une force de traction d'entrée (F4) agissant sur le matériau en bande (4),
    un dispositif de mesure de force (35), afin de détecter comme grandeur physique une force de laminage (F6) du dispositif de laminage (6) agissant sur le matériau en bande (4),
    un dispositif de mesure de position (36), afin de détecter, en tant que grandeur physique, une position de réglage (s) d'un rouleau (21, 22 ; 21', 22') agissant sur le matériau en bande (4),
    est utilisé.
  14. Procédé selon l'une quelconque des revendications 12 à 13,
    caractérisé en ce
    qu'une force de pression (F1, F2, F5, F6) de l'unité de pressage (11, 11') est réglée en fonction de la grandeur physique (F4) déterminée par le dispositif de mesure (7, 7'), la puissance d'entraînement du moteur (13, 13') et la force de pression (F1, F2, F5, F6) de l'unité de pressage (11, 11') sont notamment réglées de telle sorte que la force d'entraînement agissant sur le matériau en bande (4) par le dispositif d'entraînement de bande (5, 5') est commandée de manière dynamique entre 1 et 120 N/mm2 par rapport à la section transversale du matériau en bande.
  15. Procédé selon l'une quelconque des revendications 12 à 14, caractérisé par les étapes suivantes :
    entraîner le matériau en bande (4) au moyen d'un deuxième dispositif d'entraînement de bande (5') qui est disposé derrière le dispositif de laminage (6) dans le sens de déplacement du matériau en bande (4), le deuxième dispositif d'entraînement de bande (5') comprenant au moins une unité d'entraînement de moyen de traction commandable (10, 10') avec un moteur (13, 13'), un moyen de traction sans fin (14, 14') pouvant être entraîné par le moteur (13, 13') ainsi qu'une unité de pressage (11, 11') pour presser le moyen de traction (14, 14') contre le matériau en bande (4) ;
    détecter une force de traction de sortie (F7) agissant sur le matériau en bande (4) au moyen d'un second dispositif de mesure de traction (7') disposé entre le dispositif de laminage (6) et le second dispositif d'entraînement de bande (5') ; et
    régler la puissance d'entraînement du moteur (13, 13') du deuxième dispositif d'entraînement de bande (5') à une valeur constante et/ou réguler la force de pression (F5, F6) de l'unité de pression (11, 11') du deuxième dispositif d'entraînement de bande (5') en fonction de la force de traction de sortie (F7) déterminée par le deuxième dispositif de mesure de traction (7').
EP20816160.4A 2019-11-27 2020-11-27 Système et procédé de laminage flexible d'un matériau en bande métallique Active EP4065295B1 (fr)

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DE102019132133.6A DE102019132133A1 (de) 2019-11-27 2019-11-27 Anlage und verfahren zum flexiblen walzen von metallischem bandmaterial
PCT/EP2020/083761 WO2021105447A1 (fr) 2019-11-27 2020-11-27 Système et procédé de laminage flexible d'un matériau en bande métallique

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BE541577A (fr) * 1954-09-28
SU692650A1 (ru) * 1977-07-11 1979-10-25 Карагандинский Филиал Особого Конструкторского Бюро Всесоюзного Научноисследовательского Института Автоматизации Черной Металлургии Устройство дл автоматического регулировани нат жени полосы
DE4009862A1 (de) * 1990-03-28 1991-10-02 Schloemann Siemag Ag Vorrichtung zum ziehen und bremsen von metallbaendern
JPH0977316A (ja) * 1995-09-20 1997-03-25 Nippon Reliance Kk ウェブ自動継ぎ装置
DE19846900C2 (de) * 1998-10-12 2000-08-10 Thyssenkrupp Stahl Ag Verfahren und Vorrichtung zum Herstellen eines Metallbandes für abzulängende Tailored Blanks
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JP5057467B2 (ja) * 2008-03-03 2012-10-24 株式会社中田製作所 成形装置とそのシュー及び成形方法
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WO2021105447A1 (fr) 2021-06-03
HUE065735T2 (hu) 2024-06-28
US20220410234A1 (en) 2022-12-29
EP4065295C0 (fr) 2023-12-27
CN114867567B (zh) 2024-12-17
PL4065295T3 (pl) 2024-05-13
CN114867567A (zh) 2022-08-05
DE102019132133A1 (de) 2021-05-27
US12036593B2 (en) 2024-07-16
EP4065295A1 (fr) 2022-10-05

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