EP4025359A1 - Unité de laminage transversal et procédé de réglage du passage de rouleau d'une unité de laminage transversal - Google Patents

Unité de laminage transversal et procédé de réglage du passage de rouleau d'une unité de laminage transversal

Info

Publication number
EP4025359A1
EP4025359A1 EP20785907.5A EP20785907A EP4025359A1 EP 4025359 A1 EP4025359 A1 EP 4025359A1 EP 20785907 A EP20785907 A EP 20785907A EP 4025359 A1 EP4025359 A1 EP 4025359A1
Authority
EP
European Patent Office
Prior art keywords
rolling
roller
rollers
roll
adjustment
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.)
Pending
Application number
EP20785907.5A
Other languages
German (de)
English (en)
Inventor
Martin Sauerland
Susanne Zeller
Krahn MATTHIAS
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.)
SMS Group GmbH
Original Assignee
SMS Group GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP4025359A1 publication Critical patent/EP4025359A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/20—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a non-continuous process,(e.g. skew rolling, i.e. planetary cross rolling)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/008—Skew rolling stands, e.g. for rolling rounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • 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
    • B21B37/78—Control of tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/12—Rolling load or rolling pressure; roll force

Definitions

  • the invention relates to a skew roller unit and a method for adjusting the roller pass of a skew roller unit.
  • Such inclined rolling units or adjustment methods are, for example, from
  • the inclined rolling unit comprises at least two rolls, each mounted in roll mills, a roll stand in which at least one of the roll mills is adjustable to change the roll caliber, there the feed, in its position via a roll mill adjustment, there an eccentric bushing.
  • JP 53-149858 also discloses a corresponding cross rolling unit.
  • the invention is based on the basic knowledge that a good
  • the rolling result can be achieved if the rolling caliber can also be adjusted during rolling. As a result, the rolling pass can then be adapted accordingly to changing rolling parameters, which can be obtained, for example, by suitable measurements.
  • the inclined rolling unit comprises at least two rolls and a roll stand, in which at least one of the rolls is adjustable in its position for changing the roll caliber. This allows the rollers to be hired with a specific whale kali.
  • roller mills come into use, all of the roller mills of the two rollers are used Change of the roll caliber in its position can be mounted on a roll mill adjustment, which enables a more precise adjustment or alignment of the roll caliber.
  • a cross-rolling unit with at least two rolls and with a roll stand in which at least one of the rolls can be adjusted to change the position of the roll caliber, can be implemented in implementation of the above-mentioned basic knowledge is mounted, characterized in that a roller positioning device comprises a stator-bound part and a roller mill bound part which can be moved during the rolling and which can be adjusted relative to one another.
  • the first part of the roller positioning device is in this case preferably firmly connected to the stand and the second part is connected to the roller mill.
  • the stand and thus also the first part of the roller positioning device remain stationary on the same stand during the rolling or can also rotate in a constant path during the rolling, if necessary.
  • the roller frame and, accordingly, the second part of the roller positioning device connected to it are adjustable against the first part or the roller stand, the stand preferably remaining in its position, possibly also in its circumferential path, and the roller stand understands itself accordingly.
  • the adjustment can take place in particular during the rolling process, the parts of the roll positioning device also being understood as a load.
  • the rolling caliber can be adjusted during rolling, for example to produce a changing diameter on the workpiece or to be able to react accordingly to changes in the geometry of the workpiece or to rolling parameters that change during rolling, for example when running in or running out.
  • the rolling caliber could be adapted individually to the shape of the rolled piece during rolling.
  • a cross-rolling unit with at least two rolls and with a roll stand in which at least one of the rolls is adjustable in position to change the rolling caliber characterized in that a drive of the roller positioning device is dimensioned in such a way that it can apply rolling forces.
  • roller positioning device is dimensioned in such a way that it can apply the rolling forces, its adjustment can also be changed during rolling and thus position at least one of the rollers differently accordingly, which in turn enables the roller caliber to be changed during rolling.
  • a cross-rolling unit with at least two rolls and with a roll stand in which at least one of the rolls is adjustable in position to change the rolling caliber , characterized in that the mandrel position of a mandrel is adjustable during rolling by means of a mandrel position adjustment device parallel to the workpiece.
  • this also means that the rolling pass can be adjusted or adapted during rolling in accordance with the basic knowledge explained above.
  • the position of the mandrel with respect to the rolls can be changed and thus the influence of the rolling forces on the workpiece or on the mandrel and consequently the roll caliber can also be influenced.
  • the mandrel can be adjusted at the same speed as the workpiece during rolling, so that the punching of the workpiece only extends to the point up to which the mandrel was not adjusted with the same speed and direction of the workpiece.
  • the mandrel can also be removed more easily from the workpiece if the workpiece is not completely perforated or after rolling.
  • the mandrel position adjustment device By adjusting the mandrel position adjustment device, if this is arranged, for example, as a mandrel holder along the rolling axis at a distance from the rollers, perpendicular to the rolling axis, the spread angle or the like, i.e. also the roll caliber, can also be changed via the mandrel position adjustment device, which, as already indicated above, this can also be done by suitable adjustment or adjustment of the rollers.
  • the former allows a change in the roller gauge independently of a direction of movement of the roller frame or of the roller frame-bound part of the roller positioning device or independently of a movement direction of the roller positioner device itself, so that adjustment options for the roller gauge can be provided more cost-effectively here.
  • the roller positioning device comprises at least one hydraulic cylinder, which enables the respective roller to be adjusted sufficiently dynamically and, in particular, with a suitable design, also quickly. It is particularly advantageous here if a hydraulic cylinder is used, with which high pressures can be used or with which high travel speeds are possible. This then makes it possible, in particular, to allow the respective hydraulic cylinder to carry at least part of the rolling forces or to change the rolling caliber during rolling. In particular, if the corresponding hydraulic cylinder can be operated at 50,000 hPa, preferably, rolling forces can then be applied by the roller positioning device.
  • Hydraulic cylinder is less than 150 mm. Depending on the specific implementation, even lifting heights below 100 mm can lead to satisfactory results here. If necessary, a two-stage system can be provided in which the roll caliber is preselected with a coarse roll positioning device, while a finer roll positioning device, for example with a small stroke, high understanding speed and / or high pressures, can then be used to adjust during rolling .
  • roller positioning devices are provided for at least one of the rollers, possibly even for several or all of the rollers. This made light a more precise adjustment of the corresponding rollers, possibly even in their angle. The rolling forces can then also be distributed over several roller positioning devices so that they can be countered structurally more easily.
  • the inclined rolling unit comprises a multivariable control which comprises at least two input variables and at least one output variable, both of which can be determined by the roller positioning device or are transmitted to the roller positioning device.
  • the input variables can be composed of measured variables that are determined, for example, by the roller positioning device or determined by other measuring systems and transmitted to them.
  • control processes can be carried out on the basis of the measured data, so that the cross-rolling unit or an associated control can intervene accordingly in the rolling process.
  • Skew rolling unit available in a structurally relatively simple way.
  • the rolling force but also the position of the rollers or the roller mills should be mentioned as suitable measured variables.
  • the measured variables of workpiece infeed speed, workpiece outfeed speed, wall thickness, eccentricity, outer diameter, ovality, rolling force and mandrel holding force can be recorded as cumulative or alternative input variables, which are then used cumulatively or alternatively for multivariable control.
  • multivariable control is advantageous, which comprises at least two input variables and at least one output variable, since this allows the rolling process to be monitored more precisely and responded accordingly. It goes without saying that this advantage can be further enhanced by further input or output variables. On the other hand, it is also conceivable that only one input variable and / or only one output variable are used if this appears sufficient for the specific application.
  • the workpiece infeed speed describes the speed of the workpiece relative to the rollers before rolling. Depending on the workpiece infeed speed, the required or advantageous roll caliber can also change. The dimensions of the workpiece can also be decisive for the workpiece infeed speeds that are possible, for example. In addition, this speed can be a required variable to be controlled if the mandrel is to be adjusted in a specific speed ratio to the workpiece. It goes without saying that, since blocks or hollow blocks can be used as workpieces, which then pass through the inclined rolling unit either perforated or not perforated, the infeed speed of the blocks or hollow blocks can be used as a measured variable.
  • the workpiece exit speed describes the speed of the workpiece relative to the rollers after rolling, after punching or when moving the workpiece out or out.
  • the hollow block exit speed is often higher than the block entry speed, since the rolling often shifts material in the direction of the workpiece's direction of movement.
  • the workpiece exit speed can, however, also be higher than the workpiece entry speed.
  • the difference between the workpiece inlet and outlet speed can also be used advantageously as a measured variable or as a variable derived therefrom as this variable can also provide important information about the rolling process under certain circumstances.
  • the rotational speed of the workpiece can also serve as a measured variable, since information about the rolling process can also be obtained from this.
  • the position of the workpiece can also be a suitable measured variable in order to optimize the rolling process in a targeted manner.
  • a suitable measured variable in order to optimize the rolling process in a targeted manner.
  • other manipulated variable values or a different weighting of measured variables can be provided when determining the manipulated variables.
  • the wall thickness describes the difference between the outer diameter and the inner diameter of the workpiece, in particular of a perforated block or a hollow block.
  • the required or measured wall thickness can cumulatively or alternatively serve as a measured variable.
  • the eccentricity describes the deviation of an ellipse from the circular shape. This measured variable may be necessary for a preventive check to ensure that the
  • the rolling can be controlled in such a way that, despite the eccentricity of the workpiece, the rolling process or, in particular, further manipulated or output variables are adapted in such a way that the desired rolling result can be achieved or that the eccentricity is optimized, for example, by suitable procedural measures and geometric irregularities can be corrected.
  • the eccentricity can also be a subsequent control criterion to check whether the rolling has changed the eccentricity of the workpiece.
  • the eccentricity can be important here both on the outside diameter and on the inside diameter. [30]
  • the outer diameter describes the outer diameter of the workpiece. Under
  • the inside diameter of the workpiece in particular a pipe, can also be determined and used as an input variable.
  • the ovality of the workpiece describes the difference between the largest and smallest outer diameter in a plane. On the one hand, this can be helpful in identifying whether procedural adjustments to the manipulated variables are necessary in order to achieve the best possible rolling result. On the other hand, the ovality can be used as a retrospective Control are used, for example, to check tolerances or to check to what extent the rolling has influenced the dimensions of the workpiece.
  • the rolling force describes the force that the workpiece experiences during rolling or the force that the rollers apply to the workpiece during rolling.
  • the rolling force can vary depending on the dimensions and the properties of the workpiece. However, the rolling force must be applied during the entire duration of the rolling in order to ensure reliable rolling.
  • the mandrel holding force describes the force with which the mandrel acts on the workpiece, especially during rolling, and corresponds to the force with which the mandrel must be held during rolling.
  • the magnitude of the mandrel holding force can depend in particular on the nature of the workpiece and the workpiece infeed speed. This force can also vary accordingly when adjusting the mandrel position or the spread angle.
  • the output variables preferably include manipulated variables which are adjusted, for example, to regulate the rolling caliber, in particular during rolling.
  • the manipulated variables can in particular include a dynamic positioning adjustment of at least one of the rollers, an adjustment of the roller center by adjusting all rollers, a dynamic adjustment of the mandrel position and / or an adjustment of the spread angle.
  • the manipulated variables are used for multivariable control in that the manipulated variables can be used to react to the input variables or the input variables are controlled accordingly.
  • the manipulated variables all describe adjustment options for the individual elements of the inclined rolling unit, such as the adjustment of the rollers and the mandrel. These adjustment possibilities, which are determined by the manipulated variables, are used to actively influence the measured variables.
  • a specific rolling force can only be established by appropriately adjusting the position of the upper or lower roller.
  • the rotational speed of the rollers or the rotary drive force acting on the rollers and the like can also be used cumulatively or alternatively as output variables.
  • the method for adjusting the rolling gauge of a skew rolling unit with at least two rollers can be characterized in that at least one of the rollers is understood during rolling. It understands that two or all of the rollers of the inclined rolling units can be adjusted accordingly. In this way, too, the basic knowledge explained at the beginning that an adjustment of the rolling caliber should be made possible during rolling is implemented cumulatively or alternatively.
  • a method for adjusting the rolling gauge of a skew rolling unit with at least two rollers can be characterized in that a spreading angle or setting angle and / or the axial position of a dome are adjusted during rolling in order to achieve the best possible rolling result achieve.
  • the rolling caliber can also be adapted to any changes or abnormalities in the respective specific rolling process during rolling.
  • the axial position of the mandrel is usually defined in relation to the rolling center line or in relation to the passage line of the workpieces through the respective skew rolling unit and then the relative position of the mandrel on the rolling center line or is determined or specified on the passage line in relation to the rollers.
  • This axial position can in particular be determined by a mandrel holder, by a mandrel rod holder or by a mandrel position adjusting device holding the mandrel and adjusted as required.
  • the angle of spread or the angle of attack of the mandrel which determines the angle between the mandrel and the workpiece, can preferably be adjusted. This changes the
  • the adjustable spread angle allows ovality, eccentricity or, in general, the shape of the hole to be changed or optimized as required.
  • the corresponding rollers are adjusted synchronously with a specific roll diameter or adjusted synchronously during rolling.
  • the roller center line can shift if necessary, but this can also be wanted if necessary.
  • this can also be prevented by moving the rollers precisely against one another or only changing their angle of inclination. This is very advantageous for the entire device, since the workpiece can also be moved further on its line. When the rolling center line is shifted, rolling with straight transport of the workpiece may no longer be guaranteed to be operationally reliable.
  • roller frame positioning device In order to be able to provide an operationally reliable or as error-free as possible rolling process, rolling forces can be applied continuously by the drive of the roller frame positioning device. This enables the rollers to be adjusted or adjusted even during rolling, since the risk of sticking or similar difficulties can be minimized.
  • a roller frame can be mounted so that it can be adjusted over several or even just a single roller positioning device. If there are several roller positioning devices for a roller frame, the roller positioning devices can be used, for example, to make targeted changes to the angle of the rollers via the roller positioning devices. On the other hand, the adjustment of a roller frame enables a simpler structure only via a roller positioning device, which can be correspondingly advantageous in particular in the case of roller frames which support both roller sides. [47]
  • the roller, the rollers or the mandrel are preferably adjusted in
  • the rolling center line is a theoretically and machine-built ideal line on which the rolling stock passes through the cross-rolling unit.
  • skew rollers or skew rolling units are distinguished from longitudinal rollers or longitudinal rolling units in that the axes of the two rollers have a component parallel to a rolling center line of the skew rolling unit or skew rollers.
  • the rolling surface of the rollers during rolling has a component of rotation perpendicular to the rolling center line of the skew rolling unit or the skew rollers, which represents a different demarcation from longitudinal rollers, in which the roller surface is moved parallel to the roller center line or parallel to the direction of movement of the material .
  • the position of the rolls in skew rolling also usually has a much more complex influence on the rolling process.
  • the corresponding roller mills and their connection to the roller stand are also very complex.
  • the rolling pass describes in particular the free space that the cross-rolling unit leaves for the workpiece during rolling. It therefore includes in particular the position of the rollers and, if present, the mandrel. In particular, in connection with inclined rolling units, it also describes the angle of the roll surface in relation to the workpieces in relation to the rolling center line.
  • FIG. 1 shows a schematic plan view of two skew rolls of a skew rolling unit
  • FIG. 2 shows a schematic side view of a first cross-rolling unit
  • FIG. 3 shows a schematic side view of a second cross rolling unit
  • FIG. 4 shows a schematic front view of a third cross-rolling unit
  • FIG. 5 shows a schematic side view of the third cross-rolling unit
  • FIG. 6 shows a schematic front view of a fourth cross-rolling unit
  • FIG. 7 shows a schematic side view of the fourth cross-rolling unit
  • FIG. 8 shows a schematic side view of a workpiece running through a cross-rolling unit with a mandrel, with measured and manipulated variables
  • FIG. 9 shows a schematic representation of the multivariable control with input and output variables.
  • the skew rolling units 10 shown in the figures each include at least two rollers 20 (see Figures 1 to 3) or three rollers 20 (see Figures 4 to 7), which are carried in roller frames 21, which in turn via a roller positioning device 22 adjustable on a roll stand 27 is mounted.
  • the rollers 20 can rotate about roller axes 25 and have roller surfaces
  • the workpiece 32 runs essentially along a rolling center line 11, which roughly represents the center of gravity of the material passing through and - more precisely - represents the axis from an infeed roller table, not shown, through the center of the rolling unit to an outfeed roller table, not shown.
  • roller axes 25 are here essentially parallel to the roller center line
  • the rolls 20 themselves have a relatively complex roll surface 26, which in turn leads to a relatively complex roll caliber and in particular also to a different load on the respective roll frames 21 of a roll 20.
  • the roller positioning device 22 of the embodiments shown in Figures 1 and 2 are connected to the roller stand 27 via longitudinal spars, which serve as points of attack 24, so that via the points of attack 24 or via the connection between the points of attack 24 and the roller stand 27, the can be referred to as attack 23, the rolling forces are directed into the roll stand 27, which leads to a corresponding springing back of the roll stand 27, which ultimately leads to a corresponding non-uniform load on the roll stand 27 in accordance with the above-mentioned non-uniform loads on the rolls 20 and the roll mills 21 can lead.
  • a solid roller stand 27 is provided, in which in the embodiment of Figures 4 and 5 a thread to a roller positioning device 22 and in the embodiment of Figures 6 and 7 a Flydraulik cylinder and piston arrangement are introduced, which can be used to adjust the rollers 20 and defined as an attack 23.
  • threads can also be provided as roller positioning devices in the embodiment according to FIGS. 6 and 7, while in the embodiment shown in FIGS. 4 and 5, hydraulic roller positioning devices 22 can also be used instead of the threads.
  • each roller frame 21 is mounted so as to be adjustable on the roller stand 27 by two roller positioning devices 22.
  • the roll axes 25 can also be adjusted at their angle to the roll center line 11, or non-uniform load changes can also be countered.
  • the exemplary embodiments according to FIGS. 6 and 7, on the other hand, have only one roller positioning device 22 per roller frame 21, which is structurally simpler to implement.
  • roller positioning device 22 only one roller positioning device and / or one hydraulic roller positioning device 22 can be provided, while in the exemplary embodiment according to FIGS. mechanical roller positioning devices 22 can be provided. Mechanical and hydraulic roller positioning devices 22 can also be combined if necessary. Other roller positioning devices 22, such as piezoelectric or pneumatic adjustments, can also be provided.
  • the rolling surface 26 of the rollers 20 has, as can be seen directly from the figures, a movement component perpendicular to the rolling center line 11 of the inclined rolling unit 10 during rolling. As a rule, it accordingly follows from this that the rolling surface 26 of the rollers 20 during rolling have a movement component perpendicular to the direction of movement of the workpiece 32 through the inclined rolling unit 10.
  • the axes 25 of the two rolls 20 also have a component parallel to the rolling center line 11 of the cross-rolling unit 10, as can be seen directly from the figures.
  • the path 40 between the two roller mills 21 of both rollers 20 is measured by a distance measuring system 41 is arranged between roller covers 50 on the roller mills 21 and on the respective roller mill 21 arranged reference covers 60, the Measurement can easily take place even during rolling.
  • the roller cover 50 of a first roller frame 21 can specifically be referred to as the reference reference 60 of the second roller frame 21 using the same position measuring system 41. It goes without saying that in a different embodiment only one
  • assemblies such as assemblies provided between the roller positioning devices 22 and the roller frames 21 or the longitudinal or stand bars, can also be used accordingly or corresponding separate assemblies can serve as supports for the roller reference points 51 or reference reference stands 61.
  • approaches are in each case as
  • Roller reference point 51 or reference reference point 61 is provided, the lugs for the roller reference point 51 being arranged on the roller frames 21 and the lugs for the reference reference points 61 being arranged on a separate reference frame 62.
  • the reference frame 62 is decoupled from the roll stand 27, so that this provides a reference or a reference reference 61 independently of the respective rolling forces.
  • the roll reference points 51 or the roll covers 50 being provided on the roll mills 21, which, however, can also be provided on other assemblies in different embodiments, as in the exemplary embodiment according to Figures 6 and 7 is the case, which also uses a reference frame 62.
  • a distance measurement between the rollers 20 or the roller mills 21 can also take place, as is shown by way of example using the exemplary embodiment shown in FIG.
  • the path 40 between the roller mills of the rollers 20 and a reference provided outside of the engagement 23 is measured.
  • the reference reference 61 is arranged outside of the attack point 24 of the roller positioning device 22 of the roller frame 21, which acts on the roller stand 27.
  • resistance sensors, capacitive ones are used
  • Sensors and / or inductive sensors are used as position measuring systems 41 or for distance measurement.
  • optical rangefinders, ultrasonic sensors or radar sensors can also be used accordingly.
  • a contact or non-contact measurement can be carried out accordingly.
  • FIG. 8 a hole process of a workpiece 32 by means of a mandrel 30 and two rollers 20 is illustrated schematically. A corresponding procedure can be used in particular in conjunction with the other inclined rolling units 20 presented here.
  • manipulated and measured variables are also shown by way of example which, among other manipulated and measured variables, can advantageously be used as input variables or as output variables in all of the embodiments shown here for a multivariable control 70. It goes without saying that, if necessary, only individual measured and manipulated variables can be used and individual of these measured and manipulated variables can be dispensed with, or that further measured and manipulated variables and variables derived therefrom can be used for the multivariable control 70.
  • the workpiece infeed speed 71, the workpiece outflow speed 72, the wall thickness 73, the eccentricity 74, the outer diameter 75, the ovality 76, the rolling force 77 and the mandrel holding force 78 can be used as measured variables and are shown schematically in FIG.
  • These measured variables and further measured variables as well as variables derived from the measured variables can then serve as input variables of the multivariable control 70, as shown by way of example in FIG.
  • an adjustment 80 of the spreading angle, a dynamic positioning adjustment 81 of the rollers 20 used here as upper and lower rollers, and a dynamic adjustment 82 of the roller center are exemplified as manipulated variables Adjustment of the rollers used as upper and lower rollers synchronously and the dynamic adjustment 83 of the mandrel position shown schematically.
  • these manipulated variables can optionally be implemented by individual output variables for the respective roller positioning devices 22 and a mandrel position adjusting device 31 holding the mandrel 30, while in the present exemplary embodiment these manipulated variables are each associated with the actuators, i.e. the roller positioning devices 22 and the mandrel position adjusting device 31, respond together in order to ensure, for example, a synchronous movement of the rollers 20.
  • Roller center line 11 or also by the dynamic adjustment 82 of the roller center is a roller center line 11 or also by the dynamic adjustment 82 of the roller center.
  • the mandrel position adjustment device 31 can also adjust the axial position of the mandrel 30, that is, its position in relation to the rollers 20 in relation to the roller center line 11, which can also be used as a manipulated variable if necessary. [83] All of the manipulated variables shown in this exemplary embodiment can be adjusted, in particular, during rolling.
  • roller cover (exemplified by 45 82 dynamic adjustment of the roller number) in the middle

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

L'invention concerne une unité de laminage transversal et un procédé de réglage du passage de rouleau d'une unité de laminage transversal, ayant au moins deux rouleaux et un logement de rouleau, dans lequel au moins un des rouleaux est monté de telle sorte que sa position puisse être réglée afin de modifier le passage du rouleau, permettant de régler le passage de rouleau au moyen d'un appareil de positionnement de rouleau même pendant le laminage, ledit appareil de positionnement de rouleau étant caractérisé par une partie reliée au logement et une partie reliée au broyeur à cylindres, qui peut être déplacée par rapport à la partie reliée au logement pendant le laminage, lesdites parties pouvant être repositionnées l'une par rapport à l'autre et/ou ledit appareil de positionnement de rouleau étant caractérisé par un entraînement qui est dimensionné de manière à appliquer les forces de laminage.
EP20785907.5A 2019-09-05 2020-09-07 Unité de laminage transversal et procédé de réglage du passage de rouleau d'une unité de laminage transversal Pending EP4025359A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019123836.6A DE102019123836A1 (de) 2019-09-05 2019-09-05 Schrägwalzaggregat sowie Verfahren zum Anstellen des Walzkalibers eines Schrägwalzaggregats
PCT/DE2020/100779 WO2021043374A1 (fr) 2019-09-05 2020-09-07 Unité de laminage transversal et procédé de réglage du passage de rouleau d'une unité de laminage transversal

Publications (1)

Publication Number Publication Date
EP4025359A1 true EP4025359A1 (fr) 2022-07-13

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Application Number Title Priority Date Filing Date
EP20785907.5A Pending EP4025359A1 (fr) 2019-09-05 2020-09-07 Unité de laminage transversal et procédé de réglage du passage de rouleau d'une unité de laminage transversal

Country Status (6)

Country Link
US (1) US20220339683A1 (fr)
EP (1) EP4025359A1 (fr)
JP (1) JP2022548209A (fr)
CN (1) CN114375231A (fr)
DE (2) DE102019123836A1 (fr)
WO (1) WO2021043374A1 (fr)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN118060778A (zh) * 2024-04-19 2024-05-24 常州宝捷电机制造有限公司 工业设备用电机壳体焊接成型装置

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DE112020004223A5 (de) 2022-06-09
US20220339683A1 (en) 2022-10-27
JP2022548209A (ja) 2022-11-17
CN114375231A (zh) 2022-04-19
DE102019123836A1 (de) 2021-03-11

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