Profile rolling mill and rolling process for rolling profiles

Abstract

In profile rolling mills or when rolling profiles in a profile rolling mill, the operational reliability and the quality of the rolled profiles can be improved if the influence of the individual profile rolls on the rolled material is as specific or individualized as possible.

Description

[0001] The invention relates to a profile rolling mill comprising at least one profile roll arrangement arranged along a pass line with at least two profile rolls forming a common roll pass, each of which is mounted displaceably perpendicular to an axial plane arranged parallel to the pass line and containing the roll axis via two roll journals arranged on a roll axis, which counteract the rolling forces via a roll stand. The invention also relates to a rolling method for rolling profiles in a profile rolling mill comprising at least one profile roll arrangement arranged along a pass line with at least two profile rolls forming a common roll pass, which each rotate about a roll axis for rolling.

[0002] Such profile rolling mills are known, for example, from DE 15 27 699 A1, from DE 15 27 630 A1, from EP 1 232 807 A2 or from DE 101 03 683 B4.

[0003] The object of the present invention is to improve the rolling of profiles with regard to the quality of the rolled profiles and with regard to operational reliability.

[0004] The object of the invention is achieved by profile rolling mills and rolling methods for rolling profiles having the features of the independent claims. Further advantageous embodiments, possibly independent of these, can be found in the subclaims and the following description.

[0005] The invention is based on the fundamental finding that in profile rolling mills or when rolling profiles in a profile rolling mill, the operational reliability and the quality of the rolled profiles can be improved if the influence of the individual profile rolls on the rolled material is as specific and individualized as possible.

[0006] Thus, a profile rolling mill which comprises at least one profile roll arrangement arranged along a pass line with at least two profile rolls forming a common roll pass, which are each mounted displaceably perpendicular to an axial plane arranged parallel to the pass line and containing the roll axis via two roll necks arranged on a roll axis, which counteract the rolling forces via a roll stand, can be characterized in that at least one profile roll is mounted axially adjustable with respect to at least one of its roll necks and / or at least one of the roll necks is mounted in the roll stand with a component adjustable parallel to the axial plane, in order to improve the quality of the rolled profiles and operational reliability.

[0007] Cumulatively or alternatively, a rolling method for rolling profiles in a profile rolling mill, which comprises at least one profile roll arrangement arranged along a pass line with at least two profile rolls forming a common roll pass, which rolls each rotate about a roll axis for rolling, can be characterized in that, depending on at least one specified parameter, at least one of the roll axes is adjusted with a component in an axis plane arranged parallel to the pass line and containing the roll axis in order to improve the quality of the rolled profiles and the operational reliability.

[0008] Due to the geometry of a roll, in particular a profile roll, which rotates or revolves around a roll axis in order to carry out the corresponding rolling process, the surface of the roll or profile roll, when in contact with the rolling stock, has a movement component that is directed perpendicular to the roll axis. The rolling stock will therefore pass the corresponding profile roll - and generally also other profile rolls in the same profile rolling mill - with this movement component, and from this movement component a fitting line can be defined, which then accordingly has a component perpendicular to the roll axis. A plane can thus be defined by the fitting line or the component perpendicular to the roll axis on the one hand and by the roll axis on the other, which in the present context is referred to as the axial plane if the roll axis lies in this axial plane.if the axis plane includes the roller axis.

[0009] In practice, it can therefore be assumed that a significant component of the force applied to the rolled stock by a profile roll is generally aligned perpendicular to the axial plane of the respective profile roll. As a rule, the rolling forces will therefore initially act perpendicular to the respective axial plane on the respective profile roll and thus also on its roll neck and any main drives with which the rolling axis can be adjusted in relation to the pass line or in a plane perpendicular to the pass line in order to provide the respective rolling pass. Accordingly, these rolling forces are generally also directed via such main drives, as are well known from hydraulic adjustments from the prior art, in this plane perpendicular to the pass line or perpendicular to the axial plane into a rolling stand, which serves to counteract these rolling forces.

[0010] Irrespective of the other combinations of features explained here as being advantageous, a profile rolling mill which comprises at least one profile roll arrangement arranged along a pass line with at least two profile rolls forming a common roll pass, which are each mounted displaceably perpendicular to an axial plane arranged parallel to the pass line and containing the roll axis via two roll necks arranged on a roll axis, which meet the rolling forces via a roll stand, can be characterized in that cumulatively or alternatively at least one of the roll necks is mounted displaceably to the axial plane independently of the other roll neck supporting the respective profile roll, in order to improve the quality of the rolled profiles and the operational reliability.Irrespective of this, a rolling method for rolling profiles in a profile rolling mill, which comprises at least one profile roll arrangement arranged along a pass line with at least two profile rolls forming a common rolling pass, which each rotate about a roll axis for rolling, can be characterized cumulatively or alternatively in that, depending on at least one specified parameter, at least one of the roll axes is adjusted in its solid angle in order to improve the quality of the rolled profiles or operational reliability - and this, if appropriate, also independently of the other feature combinations presented here as advantageous. In this case, an adjustment of at least one of the roll axes in its solid angle requires that the associated profile roll is also adjusted in its solid angle, which leads to an inclination of the profile roll in space.To the extent that the roll axis is adjusted at a solid angle that is aligned in a plane perpendicular to the fitting line, this can be implemented, for example, by displacing at least one of the roll necks with a component perpendicular to the axis plane. The other roll neck should then not undergo the same displacement, as this would otherwise lead to a parallel displacement of the roll axis perpendicular to the axis plane, which, as already explained above, would correspond to an immediate change in the roll pass. For the targeted adjustment of a roll axis at a solid angle that lies in a plane perpendicular to the fitting line, the main drives of the respective section rolling mill can therefore be used, provided they are capable of displacing the two roll necks that support a section roll independently of one another.Should this not be possible with sufficient precision, it is understood that one or more additional drives may be used for this purpose. For adjusting a roll axis at a solid angle that lies in or parallel to the axis plane, one of the roll necks, in particular, can be mounted on the roll stand with a component that can be adjusted parallel to the axis plane. This then enables the roll axis to be adjusted accordingly, unless both roll necks are adjusted identically parallel to the axis plane, which would in turn lead to a parallel displacement of the roll axis.

[0011] However, regardless of the other combinations of features listed here as advantageous, it can be cumulatively or alternatively advantageous if a rolling method for rolling profiles in a profile rolling mill, which comprises at least one profile roll arrangement arranged along a pass line with at least two profile rolls forming a common rolling caliber, which each rotate about a roll axis for rolling, is characterized in that, depending on at least one specified parameter, at least one of the profile rolls is adjusted along its roll axis in order to improve the quality of the rolled profiles or the operational reliability.

[0012] Adjusting a profile roll along the roll axis can be structurally implemented, for example, by mounting a profile roll so that it can be axially adjustable with respect to at least one of its roll necks, or by mounting it so that it can be adjusted parallel to the roll axis with respect to at least one of its roll necks. It is also conceivable for at least one of the roll necks to be mounted on the roll stand so that it can be adjusted with a component parallel to the axial plane, specifically parallel to the roll axis lying in the axial plane, and thus a corresponding displacement of the roll neck can also cause a corresponding displacement of the profile roll.

[0013] A profile rolling mill which comprises at least one profile roll arrangement arranged along a pass line with at least two profile rolls forming a common roll pass, which are each mounted displaceably perpendicular to an axial plane arranged parallel to a pass line and containing the roll axis via two roll journals arranged on a roll axis, which counteract the rolling forces via a roll stand, can be characterized, independently of the other combinations of features presented here as advantageous, cumulatively or alternatively in that the two profile rolls of the profile roll arrangement are driven independently of one another in order to improve the quality of the rolled profiles and the operational reliability.Likewise, a profile rolling mill which comprises at least one profile roll arrangement arranged along a fitting line with at least two profile rolls forming a common rolling pass, which are each mounted displaceably perpendicular to an axial plane arranged parallel to the fitting line and containing the roll axes via two roll journals arranged on a roll axis, which counteract the rolling forces via a roll stand, can be characterized, in addition or as an alternative, in that at least one of the two profile rolls of the profile roll arrangement is driven independently of at least one profile roll of a further profile roll arrangement arranged along the fitting line, in order to improve the operational reliability and the quality of the rolled profiles.A rolling method for rolling profiles in a profile rolling mill, which comprises at least one profile roll arrangement arranged along a pass line with at least two profile rolls forming a common rolling groove, which each rotate about a roll axis for rolling, can also be characterized in that the roll speed of at least one profile roll is controlled as a function of at least one specified parameter in order to improve the operational reliability and the quality of the rolled profiles cumulatively or alternatively to the other feature combinations advantageously explained here. By independently driving the profile rolls or by controlling the roll speed of a profile roll as a function of at least specified parameters, it is possible to have a profile roll lead or lag in a targeted manner, whereby direct intervention in the rolling process is possible.In particular, lagging can be used to counteract, for example, a breakout of the rolled stock in the direction of the corresponding roll. Likewise, leading or lagging can be used to specifically enable curvature or other targeted material displacement in the desired manner, particularly depending on correspondingly meaningful predefined parameters.

[0014] In the present context, the term "section rolling mill" is understood in particular to refer to an arrangement comprising at least one section roller arrangement arranged along a pass line. Depending on the specific design, the section rolling mill may also comprise rolling stock guides for guiding a rolling stock passing through the section rolling mill along the pass line and rolled thereby, which are or can be arranged on the input side or output side or between the rolling stations. Corresponding rolling stock feeds, such as an input roller conveyor or an output roller conveyor, may also be provided on the input side or output side. Depending on the specific design, the section rolling mill may also comprise a change system for exchanging the section roller arrangements and other units, such as the rolling stock guides, which may in particular comprise one or more change carriages and the like.In the present context, the term "profile rolling mill" preferably refers to the mechanical unit of at least one profile rolling arrangement, by means of which a rolled stock can be rolled into a profile and which preferably has a rolled stock feed and a rolled stock removal system, so that the profile rolling mill can be integrated into an overall system or a rolling mill. In this case, the profile rolling mill often acts on the rolled stock in a forming manner on its own, i.e. only with the profile rolling arrangement or with further profile rolling arrangements arranged along the pass line. It is also conceivable that two or more profile rolling mills act on the rolled stock successively but simultaneously or at least in a continuous work sequence. Alternatively,In the present context, a “profile rolling mill” can be understood as an arrangement of one or more profile roller arrangements arranged along a pass line, as long as the corresponding rolling mill is suitable and intended for rolling rolled stock into profiles or at least one of the rollers is a profile roller.

[0015] In practice, it can be assumed that profile rolling mills are preferably operated with at least one forward and backward pass, i.e., preferably reversing, as this represents a very economical method of rolling profiles. Accordingly, it appears advantageous if the profile rolling mill can be operated, or rolls, in a reversing manner. In particular, an even number of direction changes allows the rolled stock to be discharged in the same direction in which it is fed in, which often leads to consistent process control throughout the entire plant. On the other hand, a second change of direction or further changes of direction are not absolutely necessary.

[0016] In this case, a different rolling caliber can be provided for each pass by using identical profile roll arrangements, as the respective rolls are individually adjusted for each pass. For example, a significant elongation and profile change can occur in the first two passes, while the third pass has a more smoothing effect on the rolled stock.

[0017] Accordingly, section rolling mills can be particularly distinguished by the technical capability of rolling the rolled stock in both directions along the pass line, i.e., reversibly or reversing, even if this capability may not be utilized in specific applications. In this respect, this capability distinguishes section rolling mills from other rolling mills for long products, such as billet mills, wire rod mills, sizing or groove mills, continuous rolling mills, or PQF rolling mills.

[0018] As a rule, a profile rolling operation or a profile rolling mill can also be characterized by the fact that solid material or rolled stock with a solid cross-section is rolled into a profile, since the rolling speeds generally do not allow the use of a rolling mandrel to enable hollow profiles or, with the rolling forces and rolling speeds applied, the operationally reliable maintenance of cavities aligned along the length of the rolled stock cannot be guaranteed.

[0019] Profiles, unlike wire in particular, are generally inherently rigid and therefore should not, are not, or cannot be rolled or wound up after rolling. Such rolled and inherently rigid profiles can generally ultimately be assigned a load-bearing function, for example if they are to be used as beams, stiffeners or rails. In this respect, we speak of inherently rigid rolled stock or inherently rigid profiles if the corresponding rolled stock or profile only yields to bending forces to a small extent over its longitudinal extent and, in particular, cannot be bent back on itself without changing the material structure. Section rolling mills can, in particular, be suitable and intended to roll inherently rigid rolled stock or inherently rigid profiles, whereby this can have an impact on the design of the inlet and outlet sides, in particular.discharging units, such as correspondingly long roller conveyors without the possibility of unwinding or winding the rolled material or profiles.

[0020] In particular, in section rolling mills, the rolled stock can be hot-rolled if necessary, which allows for correspondingly deep interventions in the material structure to impart the desired properties to the rolled sections. Accordingly, it can be advantageous if the section rolling mill is designed for hot rolling or if hot rolling is used.

[0021] Ultimately, any material that can be rolled into a profile can be considered as rolled stock in this case. Such profiles can in particular be profile steels, also known as section steels. Accordingly, however, other rollable materials can also serve as starting materials for correspondingly rolled shaped bodies, such as non-ferrous metals such as copper or aluminum, or sintered materials, although the risk of accidents affecting operational safety is often not expected to be too serious, particularly with relatively soft materials. In this respect, all rollable materials can serve as starting materials for the respective section rolling mills and thus as the rolling stock fed to the section rolling arrangements, which can then be rolled into corresponding profiles by the section rolling mill. In particular, slabs, blocks, billets, hollows or other semi-finished products, preferably made of metals, can be used as starting materials oras rolled stock fed to the respective profile rolling arrangements and profile rolling mills. Accordingly, the products produced by a corresponding profile rolling process are profiles, i.e., long products with a corresponding profile cross-section, which are well known on the market both as semi-finished products and as finished products, for example, as H-, B-, or I-beams, angle profiles, U-, L-, or T-irons, or as sheet piling, rails, or other long or flat products or special profiles. Accordingly, sectional steels and profile steels, in particular, are well known on the market as products of such profile rolling processes.

[0022] In this context, profiles can be characterized by a longitudinal extension that is significantly longer than the extension of the profile perpendicular thereto, with the profile cross-section preferably deviating from a round profile cross-section and being constant over the longitudinal extension within specified limits. It is not absolutely necessary for the profile to extend along a straight line along its longitudinal extension. Rather, it is conceivable for the longitudinal extension to follow a curved line, which can be achieved, for example, by a suitably adjusted offset of the rolls of a profile roll arrangement along the pass line or by a suitable offset of the roll passes of successive profile roll arrangements.Under certain circumstances, it is also conceivable that the profile cross-section can vary with a periodicity along the longitudinal direction if rolls with a surface that changes over the roll circumference are used. It should be taken into account that if the rolled stock is elongated during the use of such profile rolls, this may cause problems if several passes are to be rolled.

[0023] The profile cross-section of the sections rolled by the profile rolling mills or profile rolling arrangements is determined by the respective rolling calibers, which essentially represent the free space between the corresponding profile rollers of the respective profile rolling arrangements, which these leave for the rolled stock as it passes along the pass line. If this rolling caliber deviates from the cross-section of the incoming rolled stock and parts of the profile rollers are in the way of the rolled stock, the material is displaced. The extent to which this displacement occurs along the pass line—and thus at least partially as elongation—or perpendicular to the pass line—and thus as a profile change—depends on the associated rolling conditions.

[0024] Accordingly, the term "profile roll arrangement" in this context refers in particular to any arrangement of at least two rolls that are suitable and intended for rolling profiles. It is understood that the rolls are generally profiled rolls, which can then provide a corresponding rolling pass that forms the rolled stock into a profile. Depending on the specific desired profile, however, it is conceivable that at least one roll of an associated roll arrangement is a universal roll, which is not profiled as such but has a cylindrical roll surface.

[0025] The number of rolls in a profile roll arrangement is not limited to two. Ultimately, three or more rolls can also form a roll pass and thus represent a profile roll arrangement. In this case, it is particularly common to combine vertical rolls and horizontal rolls. The horizontal rolls generally have horizontally aligned roll axes and are often profiled, while the vertical rolls have vertical roll axes and are often designed as universal rolls and are therefore unprofiled or have cylindrical roll surfaces. However, vertical rolls with conical roll surfaces are also available on the market.

[0026] In the present context, the term "profile roll arrangement" preferably refers in particular to a roll arrangement comprising rolls that form a common rolling pass, so that the rolls interact together on the rolled stock, and which is suitable and intended for forming the rolled stock into a profile. In this case, the profile rolls of a rolling pass often interact at least during one pass in such a way that not only individual areas of the rolled stock are bent, but also material is displaced. This material displacement can occur along the pass line and / or perpendicular to it, depending on the specific requirements.

[0027] It goes without saying that, if necessary, several such profile roll arrangements can be combined one behind the other by arranging them along the fitting line. At least two profile roll arrangements arranged along a fitting line are often referred to as a profile roll tandem, even if the profile roll tandem comprises, for example, three or more profile roll arrangements arranged along the fitting line. This is particularly true if the profile roll arrangements arranged one behind the other along the fitting line are arranged in a common staggered stand, which then provides corresponding rolling stations for these profile roll arrangements. Such a staggered stand is accordingly often or possibly referred to as a tandem stand.Insofar as all of these profile roll arrangements are suitable and intended to ultimately form the rolled stock into a profile, in the present context all of these roll arrangements are referred to as profile roll arrangements and all of these rolls as profile rolls, even if individual rolls or individual roll arrangements are merely universal rolls. In this respect, it is preferably sufficient in cases of doubt if only one roll of the entire profile roll tandem or of the profile rolling mill is a profiled roll in order to refer to the entire arrangement as a profile rolling mill comprising at least one profile roll arrangement consisting of profile rolls arranged along the pass line. Insofar as, in special cases, profiles with a purely rectangular cross-section are to be produced by a profile rolling mill or insofar as, in special cases, a purely rectangular roll pass is sufficient to produce an already pre-profiled orIn order to subsequently process rolled stock that is to be further profiled, all of the profile rollers can even be designed as universal rollers.

[0028] Profiled rolls, in particular, are referred to as "profile rolls" in this context. As a rule, the profiling of the respective roll will be limited to a change in the roll radius along the roll axis, so that the corresponding roll makes an identical contribution to the respective roll pass, regardless of its angular position around the roll axis. It is understood that in special cases, the profiling of the roll may also vary in the circumferential direction, which then results in a corresponding periodic variation in the contribution of the corresponding profile roll to the respective roll pass. This, however, may potentially lead to problems in the case of elongation or rolling in multiple passes.On the other hand, in the present context, all rolls of a profile rolling mill or a profile rolling arrangement, regardless of their surface design, can be referred to as profile rolls, so that universal rolls, as long as they are used in profile rolling mills or in profile rolling arrangements, can represent a special form of a profile roll.

[0029] Typically, the profile rollers will each have roller axes aligned perpendicular to the pass line. It should be understood that these roller axes do not necessarily have to be physical, but rather indicate the axis around which the components of the respective profile roller rotate.

[0030] In the present context, the term “fitting line” preferably refers to an idealized line through the respective section rolling mill or through the associated staggered stand, along which the rolled stock passes the rolls or profile rolls. Depending on the specific design of the associated section rolling mill or the specific definition of the fitting line, the fitting line can, for example, approximately represent the center of the rolling stock passing through. On the other hand, it is also common practice, for example, to standardize the fitting line to an inlet or outlet roll row or to align its height to the running surface of the respective roller table or tables. Ultimately, the fitting line is a defined or imaginary line through the respective section rolling mill, which is often used as the appropriate reference for assemblies that are to be positioned or adjusted in relation to the rolling stock passing through.Since these are relative values, if a different fitting line is chosen, these relative values ​​will simply have to be converted accordingly by means of a parallel offset.

[0031] In the present context, it is assumed that in a stacked stand or in a profile rolling mill with profile roll arrangements at multiple rolling stations, there is generally a profile roll arrangement consisting of profile rolls at each rolling station arranged along the pass line in order to provide a profile rolling mill. It is understood that in special cases, when very specific profiles have to be rolled, only one of the two rolling stations may be occupied by a profile roll arrangement if this allows the desired forming work on the rolled stock to be carried out with sufficient operational reliability. Accordingly, the term "rolling station" refers to any device in a stacked stand that is suitable and intended to accommodate a profile roll arrangement.

[0032] The profile rolls are preferably supported by two roll necks arranged on a roll axis. Depending on the specific design, the two roll necks may be part of a common roll shaft and, in particular, may serve to rotatably support the respective profile roll such that the profile roll can exert a forming effect on the rolled stock. Accordingly, the roll necks and the associated bearings are preferably designed to counteract the rolling forces accordingly. Typically, the roll necks are then supported in a rolling stand, via which the profile rolling mill can counteract the rolling forces or apply the rolling forces.

[0033] Depending on the specific design of the section rolling mill, the rolling stand can extend over several stand positions. Preferably, the rolling stand is designed at least in such a way that it can absorb all the rolling forces of at least one rolling position of the section rolling mill. For example, a rotating stand body can serve this purpose, although multi-part rolling stands can also be provided. In particular, the rolling stand can comprise longitudinal beams which are connected to one another by corresponding belts. Depending on the specific implementation, the rolling stand can comprise a vertical post system for absorbing horizontally directed rolling forces and / or a horizontal post system for absorbing vertically directed rolling forces, whereby these post systems can be provided individually or jointly for several rolling positions.If necessary, guides with corresponding guide stands can be provided between the rolling stations, which can also be operatively connected to the rolling stands or can be designed together with them.

[0034] It is conceivable that individual profile rolls merely rotate as the rolling stock passes through them, yet still have a forming or rolling effect on the rolling stock. In profile rolling mills, at least two profile rolls are usually driven per rolling station. If necessary, even all of the profile rolls in a profile rolling mill can be driven. The corresponding drive is provided via at least one of the roll necks, which can then be assigned the function of a drive shaft. To distinguish the term "roll axis" from a physical assembly that merely rotates along with the rolling stock, the term "roll shaft" is also used in this context for rotating, axle-like assemblies when they penetrate a profile roll and thus support this profile roll. In such arrangements, the roll necks are often integrally connected to the roll shaft, regardless of whether one or both roll necks are driven or not.The rolling pins can be attached to the rolling shaft or can be formed integrally with it to form part of a common rolling shaft.

[0035] The "roll axis," however, in this context simply refers to the geometric rotation axis of a profile roll around which it rotates during rolling, i.e., during the forming process. This applies regardless of whether the respective profile roll is driven or not.

[0036] In order to transfer the rolling forces from the roll necks to the rolling stand so that the necks can withstand the rolling forces, it is advantageous if the roll necks are mounted in chocks, which in turn are directly or indirectly supported on the rolling stand or guided by it. The chocks are preferably designed in particular such that they support the roll necks rotatably, which can be achieved, for example, by suitable rolling or plain bearings. Accordingly, the bearings are also preferably designed such that they can withstand the rolling forces during a rotary movement of the profile rolls and the roll necks.

[0037] In profile rolling mills, it is particularly known to design at least one of the profile rolls, possibly several or even all of the profile rolls, to be displaceable perpendicular to the axial plane. This makes it possible, in particular, to change the roll caliber of the associated profile roll arrangement, which appears to be advantageous in particular in reversing rolling processes, or to react to deviations of the rolled profiles from the target specifications. Insofar as the roll caliber can generally be defined essentially by the circumferential surface of a profile roll or several profile rolls that comes into contact with the rolling stock, a displacement of the roll neck perpendicular to the axial plane results in a corresponding displacement of the surface of the associated profile roll towards or away from the fitting line, which accordingly directly influences the roll caliber.

[0038] This displacement, which essentially influences the roll pass, can preferably be driven by a main drive, which in profile rolling mills is often realized by hydraulic piston-cylinder arrangements. Depending on the specific implementation, it is also conceivable for the main drive to comprise mechanical components, such as screw threads, roller threads and / or associated recirculating ball nuts, recirculating roller nuts, or similar devices, which can optionally also be combined with hydraulic drives. The respective main drive is preferably designed in such a way that the roll neck or the roll axis of the associated profile roll can be displaced even during rolling, so that current conditions or changes in specified parameters can be responded to as immediately as possible.

[0039] A corresponding adjustment option is known, for example, from EP 1 232 807 A2, using hydraulic adjustment drives that can move chocks in a tandem stand perpendicular to the axis plane. A radial adjustment option is also known for sizing or groove rolling mills, for example from EP 1 449 597 A2 or EP 0 594 270 A1, which can be adjusted radially via spindle gears. Likewise, DE 22 59 143 A discloses roll necks or roll axes that can be adjusted via spindle gears, there for wire rod rolling mills. DE 10 2012 025 012 A1 also discloses adjustment means, there referred to as groove direction adjustment means, which enable the rolls to be moved perpendicular to the axis plane and thus a corresponding change in the roll groove in continuously operating and thus non-standard rolling mills.

[0040] As already explained above, at least one of the roll necks can be mounted so that it can be displaced perpendicular to the axis plane, independently of the other roll neck supporting a respective profile roll, in order to improve operational reliability and the quality of the rolled profiles. Such independent displaceability can be achieved, for example, by a main drive that can control each of the two roll necks individually, for example by acting on them in a correspondingly divided manner. This can be achieved, for example, by separate hydraulic controls, separate electric motor drives, or a separating gear arrangement.

[0041] By independently shifting the two roll necks of a profile roll, it is possible to adjust the corresponding roll axis in its solid angle, specifically in a plane perpendicular to the pass line or in a plane that intersects the axis plane perpendicularly at the roll axis. A simultaneous shift, on the other hand, would directly influence the roll pass, while adjusting the roll axis in its solid angle would, for example, lead to a tilt of the profile rolls in a profile roll arrangement or at a rolling station, which can specifically influence or compensate for camber or other rolling artifacts.

[0042] Adjusting a roll axis in its solid angle is also feasible if at least one of the roll necks of a profile roll arrangement is mounted on the roll stand with a component that can be adjusted parallel to the axis plane in order to, as already mentioned above, improve operational reliability and the quality of the rolled profiles. With axial adjustability, which can be realized, for example, by axis-plane drives, i.e., in particular, by drives acting in the axis plane, it is also possible to react to rolling artifacts depending on certain specified parameters, for example by deliberately interlacing opposing profile rolls or by correcting this.

[0043] Axis plane drives can also be implemented, for example, by hydraulic drives or mechanically, for example by eccentrics or by screw drives, such as ball or roller screws.

[0044] Particularly when there are more than two profile rolls at one rolling station, very complex movement sequences of the roll surfaces of the profile rolls, which are found at one rolling station or which form a rolling pass, can be realized in relation to one another by appropriate adjustment of the roll axis, whereby the actual material flow, while the rolled stock is rolled through these rolling passes, can be influenced in a correspondingly complex manner both perpendicularly and parallel to the pass line.

[0045] If both roll necks are mounted on the roll stand with a component that can be adjusted parallel to the axis plane, it is also possible to displace the corresponding roll axis with a component parallel to the axis plane, whereby, for example, ski formation or sabre formation or other rolling artifacts can be specifically influenced or compensated.

[0046] In particular, at least one of the profile rolls can be adjusted along its roll axis, which can be implemented purely technically, for example, by the profile roll being mounted so that it can be axially adjusted with respect to at least one of its roll necks or by the roll necks being mounted so that they can be axially adjusted accordingly. In this context, the term “axial” therefore refers to the roll axis, so that the displacement occurs parallel to the roll axis when an axial adjustment is carried out. In this respect, it is correspondingly advantageous if the profile roll is mounted so that it can be axially adjusted with respect to both of its roll necks or, if the two roll necks can be regarded as part of a common roll shaft, the profile roll is mounted so that it can be axially adjusted with respect to the roll shaft.Such axial adjustment can be achieved, for example, hydraulically or by electric motor, whereby suitable axial drives, such as threaded or spindle drives, or direct or linear drives, can be advantageously used in this regard. In particular, it is also conceivable to implement corresponding axial displacements using piezo motors or piezo crystals, especially since it can be assumed that even very small axial adjustment distances can lead to significant results or effects in terms of operational reliability and the quality of the rolled profiles.

[0047] The roll speed, i.e. in particular the number of revolutions of a profile roll during rolling, can also influence the rolling result, in particular the operational reliability and the quality of the rolled profiles. Accordingly, it is advantageous if the roll speed is controlled as a function of at least one specified parameter. It is conceivable that such control takes place only for one of the rolls in a profile roll arrangement, while the other of the profile rolls runs at a uniform roll speed or at a specified roll speed. By appropriately lagging or leading the respective profile roll, it is then possible to react to any change or deviation from the specified parameters.

[0048] However, more freedom is achieved if not only the roll speed of one profile roll, but of two profile rolls, preferably all profile rolls, of a profile roll arrangement or at a rolling station is or are controlled depending on the associated specified parameters.

[0049] Particularly in the case of several profile roll arrangements or rolling stations arranged along the fitting line, the roll speeds of the profile rolls of the individual profile roll arrangements or of the profile rolls at the individual rolling stations can also be varied, so that the rolled stock can be compressed or stretched in a targeted manner between the profile roll arrangements or between the rolling stations. It is also conceivable to place the rolled stock between the rolling stations or profile roll arrangements under tension, in particular also under compressive stress, by appropriate advance or retardation, so that it moves outwards with respect to the fitting line after leaving a first profile roll arrangement or the profile rolls of a first rolling station, in order to then be moved back inwards into the rolling pass of the subsequent rolling station.By means of such or similar measures, for example, the rolling speed can be increased, whereby such a material flow between the profile roll arrangements or between the rolling stations can also be influenced cumulatively or alternatively, for example, by a suitable displacement of the roll axes.

[0050] In technical implementation, the two profile rollers of a profile roller arrangement can therefore be driven independently of each other, whereby this can be achieved in a suitable manner based on the independence of the displaceability of the roll necks, if necessary by dividing the associated drives.

[0051] At least one profile roller of a first profile roller arrangement can also be driven independently of a profile roller of a second profile roller arrangement arranged along the fitting line, so that, if appropriate, depending on at least one preset parameter, the rolling process can be influenced accordingly by controlling the roller speed of profile rollers of profile roller arrangements arranged along the fitting line, as already explained above.

[0052] The independence of the drive can be achieved, for example, through individual drive motors or variable transmissions, allowing for a corresponding variation of the roller speeds. Direct drives, such as torque motors, are particularly suitable as individual drives.

[0053] As already indicated above, the profile rolling mill can, in particular, comprise a plurality of profile roll assemblies arranged along the pass line, which are provided at correspondingly successively arranged rolling stations. The profile roll assemblies are preferably arranged along the pass line in such a way that, ideally, a rolled stock can easily pass through all profile roll assemblies in a single pass. In particular, skimming or cambering, but also other rolling artifacts, can impair operational reliability, as they can prevent smooth passage. By appropriately adjusting the roll axes or by appropriately controlling the roll speed, such artifacts can be minimized, which accordingly has a positive effect on operational reliability and the quality of the rolled profile.In this context, it should be noted that a complex adjustment may be necessary between the control of the roll speed and a displacement of the roll axis in the axis plane parallel to the fitting line, but also with other displacement directions, since a lead or lag of a roll acts on the rolled stock in a way that differs from a mere displacement of the corresponding profile roll, which can be traced, for example, to a variation in the roll speed by an increased or decreased slip and a resulting varying penetration depth of the rolling pressure into the material structure of the rolled stock.

[0054] With regard to the roll speed, in particular, as already indicated above, the roll speed of at least two profile rolls, preferably all profile rolls, can be controlled independently of one another in order to influence the rolling result accordingly.

[0055] The spatial position of at least one of the profile rolls can, for example, serve as a preset parameter, which determines the adjustment of the respective roll axis or the respective profile roll, or the control of the roll speed. Likewise, the position of at least one rolling stock guide can serve as a supplementary or alternative preset parameter in this regard. It is understood that, in particular, the position of several profile rolls or rolling stock guides, and possibly even the position of all profile rolls or rolling stock guides, can be used accordingly as preset parameters.

[0056] It is also conceivable that a force applied to or by the rolling stock, which can be measured, for example, using suitable force sensors, could be used as a corresponding preset parameter. On the one hand, it is conceivable that this force is a force proportional to the rolling force or the rolling force itself, if the force is measured, for example, in the force flow through the roll stand, through the respective roll necks, and the profile rolls. Likewise, the force used as a preset parameter could be, for example, the force exerted by a rolling stock guide or on a rolling stock guide when it comes into contact with the rolling stock.It is also conceivable that a workpiece position, a workpiece material, a workpiece temperature, or another intrinsic property of the workpiece is used as a corresponding specification parameter, whereby the corresponding values ​​can be stored electronically or measured at a suitable location. The geometry of the rolled workpiece and / or a workpiece deformation can also serve as a specification parameter, for example, by taking suitable measurements on the workpiece. In particular, an attempt can be made to detect any skid formations, sabre formation, or similar rolling artifacts by taking suitable measurements of the geometry of the rolled workpiece in order to use these measured values ​​as specification parameters accordingly.

[0057] Specification parameters can be entered manually or via interfaces. These can be existing parameters, such as setting values ​​or settings of the profile rolling mill, or information about the rolled stock. Likewise, measured values ​​that provide information about the condition of the profile rolling mill and the associated equipment can serve as specification parameters. Measurements can also be taken directly on the rolled stock, such as geometric measurements, temperature measurements, or similar, and serve as specification parameters. Specification parameters can also be defined from process data and specifications for such process data, which can then form the basis for corresponding reactions. However, corresponding specification parameters can also originate from one or more configuration memories and / or parameter memories or be obtained from data stored there.In particular, default parameters can be all parameters that are specified as parameters for a control or regulation.

[0058] If a method for rolling rolled stock in a profile rolling mill comprising at least one profile roller arrangement arranged along a pass line and an input side and an output side opposite the input side with respect to the pass line is characterized in that process data are stored in a process data memory during rolling, the process reliability during profile rolling can be increased cumulatively or alternatively to the other feature combinations presented here as advantageous.

[0059] Storing process data in this way can, in particular, make it possible to use it for subsequent testing or training purposes. In particular, the reasons for a possible malfunction or a faulty connector can be identified. It is also conceivable that this process data could then be compared with the quality of the rolled profiles in order to optimize future rolling processes.

[0060] The corresponding information, which can be obtained from the process data stored in the process data memory, can be used in particular to optimize the control and regulation processes explained above, in particular to optimally adapt the control of the profile roller and the rolling stock guides to the respective rolling situation.

[0061] Depending on the specific implementation, the control or regulation system can rely on or include neural networks or other technologies similar to artificial intelligence. The process data can be further enhanced, if necessary, to include measurement data and information about the finished rolled profiles and / or used as training data for training the neural networks or artificial intelligence. This also allows the rolling results of subsequent rolling processes to be successively improved and, in particular, process reliability during profile rolling to be increased.

[0062] In particular, any data supplied by measuring devices can be considered as process data. In particular, for example, the radial position of the rolling stock, particularly at the inlet or outlet side of the profile roll arrangement and / or between the rolling stations of the profile rolling mill comprising respective profile roll arrangements, a force exerted by the rolling stock on a guide body coming into contact with the rolling stock or its contact with the rolling stock, the movement speed of the rolling stock, and / or the shape of the rolling stock can be measured or otherwise recorded as process data, preferably via measuring devices.

[0063] However, measurement results from other sensors, such as force sensors that interact with the profile rollers, speed measurements of the profile rollers, the rolling stock or guide rollers as well as the shape of the rolling stock and / or its radial position in relation to the fitting line can also be recorded as process data or stored in the process memory.

[0064] In addition, a configuration memory can be provided in which information on the current configuration of the profile rolling mill, also called roll setup data, can be saved, which can also be used for control or even regulation or for subsequent testing or training purposes.

[0065] It is also conceivable, either cumulatively or alternatively, to use corresponding data from a parameter memory into which additional parameters have been or are being entered. Such data can, for example, be supplementary temperature data or bypass data. Likewise, precise material data of the rolling stock used or its production history, as well as other data, can be used as additional parameters. These can then also be used for control, in particular for closed-loop control, and / or for subsequent testing or training purposes.

[0066] These additional parameters can be entered manually or automatically, depending on specific requirements. Automatic input can be achieved, for example, via appropriate sensors, interfaces, or one of the measuring devices described here. However, additional measuring devices, such as measurements of the preheating process or storage times of the rolled stock, and similar, can also be used as additional parameters.

[0067] A displaceability of the respective roll necks perpendicular to the axis plane can be implemented in a structurally simple manner, in particular by means of correspondingly displaceable chocks, as already explained above and sufficiently known from the prior art.

[0068] To enable the adjustment of at least one roll neck parallel to the axial plane, it may be advantageous if the at least one roll neck is mounted in the chock or at least one profile roll is mounted so that it can be adjusted parallel to the axial plane with respect to the chock. This makes it possible, in particular, to use already known options for the displaceability perpendicular to the axial plane, while then, if necessary, only additional adjustment of the roll neck or profile roll parallel to the axial plane needs to be implemented.

[0069] In particular, the at least one roll neck can be mounted in an intermediate piece on the chock so as to be adjustable, wherein the intermediate piece can then preferably be adjusted accordingly parallel to the axis plane, whereby the adjustability of the roll neck with respect to the chock can be realized accordingly.

[0070] As long as the rolling forces can be adequately counteracted, which can be ensured by a more solid design if necessary, it may be sufficient to divide an existing and well-designed chock and mount one part as an intermediate piece on the other part of the chock, allowing for adjustment while maintaining sufficient freedom of movement. Accordingly, it can be assumed that a roll axis or roll neck that can be adjusted parallel to the axis plane must be implemented.

[0071] The intermediate piece can, for example, be mounted on the chock as an eccentric piece, so that a corresponding adjustability parallel to the axis plane can be achieved via a corresponding movement of the eccentric, whose axis of rotation is preferably parallel to the roll axis. A movement perpendicular to the axis plane caused by the movement of the eccentric piece can, if necessary, be compensated for by an existing displaceability perpendicular to it, for example by the main drive. Alternatively, a double eccentric can also be provided, whereby a suitable combination of the rotational movement of the two eccentrics of the double eccentric can achieve a movement of the roll neck or the roll axis that is aligned purely parallel to the axis plane.If necessary, an associated double eccentric can also be used for fine adjustment perpendicular to the axis plane and, in particular, for independent displacement of the roll necks of a profile roll, so that independence of the main drive in this regard is not required in addition for adjustment perpendicular to the axis plane.

[0072] Accordingly, it is advantageous if the intermediate piece is mounted on the chock as an eccentric piece – or if the intermediate piece eccentrically mounts at least one roll pin to achieve a corresponding eccentric movement. In this case, each individual eccentric can be adjusted by a motor, for example, a hydromotor, an electric motor, an electromechanical motor, or a hydraulically driven mechanism.

[0073] A corresponding drive can in particular also be implemented via an eccentric piece, regardless of the design of the drive, in order to drive the intermediate piece in a suitable manner, which can accordingly be realized hydraulically or motor-driven, in particular electromotorically or electromechanically or with similar drives, in particular for example also with linear drives or with spindle drives or screw drives or with ball or roller gears.

[0074] If the intermediate piece is hydraulically driven, corresponding hydraulic cylinders of associated cylinder-piston arrangements can, if necessary, serve as an additional function of an overload protection, which can be realized in a structurally simple manner, for example, by means of bursting discs or pressure relief valves.

[0075] In particular, if at least one roll neck or at least one of the roll necks of a profile roll is mounted on the roll stand, on the chock and / or on the intermediate piece via at least one spherical roller bearing and / or at least one bearing calotte, the generally structurally rigid arrangement of roll neck and profile roll or the associated roll shaft can follow an independent movement of the assemblies supporting the roll neck, such as the chocks or the intermediate pieces, without there being any risk of impairment of the rolling process or damage to the profile rolling mill.

[0076] It is understood that the features of the solutions described above or in the claims can also be combined if necessary in order to be able to implement the advantages cumulatively.

[0077] Further advantages, objects, and features of the present invention will become apparent from the following description of exemplary embodiments, which are particularly illustrated in the accompanying drawings. In the drawings: Fig. 1 a profile rolling mill in a schematic section on the operating side; Fig. 2 the profile rolling mill Fig. 1 in a section perpendicular to the fitting line; Fig. 3 the profile rolling mill Fig. 1 and Fig. 2 partially broken open; Fig. 4 a chock of the profile rolling mill according to Fig. 1 to 3 in a schematic side view from a perspective similar Fig. 1 or Fig. 3; Fig. 5 the chock after Fig. 4 in a section along the line VV in Fig. 4; Fig. 6 a section of a second mounting piece in a similar representation as Fig. 5; Fig. 7 a third chock in a similar representation as Fig. 4 without the drives for adjusting the roller axis; Fig. 8 a fourth chock in section along the line VII-VII in Fig. 8; Fig. 9 the chock after Fig. 8 in section through its axial plane 60; and Fig. 10 a fifth chock in a similar representation as Fig. 9.

[0078] This is particularly true in the Fig. 1 to 3 comprises three profile roller arrangements 20 arranged along a pass line 30, each of which is provided at rolling stations 31 arranged successively along the pass line 30.

[0079] The profile roller arrangements 20 each comprise profile rollers 21, which form a rolling pass for each rolling station 31, through which rolling stock can be continuously rolled along the pass line 30.

[0080] The profile rolls 21 each counteract the rolling forces by means of a rolling stand 40, which in this exemplary embodiment is designed as a staggered stand. For this purpose, the rolling stand 40 comprises, for example, two stand walls 41, which together essentially form a horizontal support structure 46, as well as a vertical support structure 47, which is divisible for maintenance purposes and in particular for changing the profile rolls 21 and comprises several vertical stand halves 45, which are each detachably connected to one another via tie rods 44 and intermediate cross members 43 and each have a crosshead cross member 42 for absorbing rolling forces acting in the horizontal direction 36 from vertical rolls 24.

[0081] Such a stacked stand is relatively compact, although in alternative designs, separate rolling stands 40 can be provided for each rolling station 31, or individual rolling stands 40 can be provided for groups of rolling stations 31. It is also conceivable to provide guides, in particular suitable guide stands, between the individual rolling stations 31. Continuous crosshead beams 42 can also be dispensed with in alternative designs, in particular if, for example, vertical rolls 24 are dispensed with at the middle rolling station 31.

[0082] In this exemplary embodiment, the horizontal support structure 46 can particularly counteract rolling forces directed in the vertical direction 37 from horizontal rolls, i.e., from upper rolls 22 and lower rolls 23. The vertical support structure 47, on the other hand, can particularly counteract rolling forces directed essentially in the horizontal direction 36 from vertical rolls 24.

[0083] The profile rolling mill 10 can be assigned an input side 33 and an output side 34, which are arranged on both sides of the profile roller arrangements 20 along the fitting line 30.

[0084] Here, the input side 33 is defined as the side via which a rolling stock to be rolled is first fed to the profile rolling mill 10 for a first pass, whereby - depending on the specific process - the rolling stock can be rolled in a reversing manner, i.e. in a second pass from the output side 34 to the input side 33. This reversing can also be carried out several times if necessary, whereby an odd number of reversals results in the rolling stock leaving the profile rolling mill 10 towards the input side 33, which in this case does not change the definition of input side 33 and output side 34.

[0085] In order to ensure that the movement of the rolled stock along the fitting line 30 through the profile rolling mill 10 or past the profile roller arrangements 20 can be controlled, the profile rolling mill 10 comprises an input roller conveyor 48 on the input side 33 and an output roller conveyor 49 on the output side 34, which are aligned according to the profile rollers 21 along the fitting line 30 or possibly even define the fitting line 30, so that the profile rollers 21 can be aligned accordingly.

[0086] As already indicated above, the vertical support structure 47 can be separated by loosening the tie rods 44. In this case, it has proven advantageous if the profile rolling mill 10 can be assigned a drive side 38 and an operating side 39, as shown by way of example in Fig. 2 is shown.

[0087] Once the vertical support structure 47 is separated, the support wall 41 on the operating side 39 can then be displaced in the horizontal direction 36 away from the drive side 38, in order to access between the vertical support halves 45 or between the two support walls 41 for maintenance purposes or to replace the profile rollers 21. This then enables corresponding maintenance work or a replacement of the profile rollers 21 in a manner known per se, whereby any drives can remain stationary, provided they only act on the drive side 38.

[0088] The profile rolls 21 each have roll axes 50 and are mounted displaceably on the roll stand 40 via roll journals 51 in associated chocks 52 perpendicular to their roll axes 50 or perpendicular to respective axis planes 60, which are spanned by the respective roll axis 50 and the fitting line 30, as is particularly also shown in Fig. 4 to 10 are shown as examples.

[0089] The displacement is carried out by exemplary numbered main drives 70, which engage the chocks 52 and the rolling stand 40, so that any rolling forces from the profile rolls 21 are transmitted via the roll necks 51 and the chocks 52 as well as via main drives 70 into the rolling stand 40, which can then counteract these rolling forces accordingly.

[0090] In the present embodiment, the main drives are realized by piston-cylinder drives 65, although in different embodiments, electric motor drives or spindle drives or the like can also be used.

[0091] The chocks 52 of the Fig. 1 to 3 are, as already explained above, individually displaceable perpendicular to their respective axis plane 60 via main drives 70, which are designed as piston-cylinder drives 75, wherein a chock guide 59 also ensures in particular that forces occurring axially along the roll axis 50 or axially along the roll neck 51 can be absorbed, as shown exemplarily in Fig. 4 and Fig. 5 shown.

[0092] In addition, the roll axes 50 and the roll necks 51 can each be adjusted parallel to the axis plane 60.

[0093] The latter is the case with Fig. 4 and Fig. 5, the chock 52 is implemented by means of an eccentric bearing. For this purpose, an intermediate piece 53 is rotatably mounted in the chock 52 parallel to the roll axis 50, with this intermediate piece 53 eccentrically mounting the associated roll neck 51. By means of an electric motor drive 76, which drives a drive pinion 83, which meshes with a drive gear 84, which in turn is seated on the intermediate piece 53, the intermediate piece 53 can be rotated or turned so that the roll neck 51 can be adjusted with a component parallel to the axis plane 60. If necessary, a displacement of the roll axis 50 or the roll neck 51 perpendicular to the axis plane 60 caused by the eccentric movement can be compensated via the main drive 70. In this way, an axis plane drive 71 can be realized, which enables the roll axis 50 or the roll neck 51 to be adjusted with a component parallel to the axis plane 60.

[0094] Furthermore, a thread 81 is attached to the intermediate piece 53, into which a drive nut 52, which is mounted axially with respect to a rotational axis of the intermediate piece 53 via a fixed bearing, engages, so that rotation of the drive nut 52 enables adjustment of the intermediate piece 53 parallel to the roll axis 50 and thus also within the axis plane 60, wherein the drive nut 82 is driven by an electric motor drive 76, which meshes with the drive nut 82 via a drive pinion 83. This makes it possible to provide an axial drive 72, by means of which the intermediate piece 53 and thus the associated roll neck 51, which is mounted in the intermediate piece 53 by means of a fixed bearing (not numbered), can be adjusted axially with respect to the roll axis 50. This then also requires an axial drive 72 for a possible roll shaft, if this roll neck 51 should be part of the same.

[0095] The drive pinion 83 of the axis plane drive 71 is relatively long, so that it meshes with the associated drive gear 84 even when the intermediate piece 53 is axially displaced.

[0096] Depending on the specific implementation, the intermediate piece 53 may be supported in the chock 52 via a plain bearing or a rolling bearing. It is also conceivable to support the shaft journal 51 via spherical roller bearings or bearing cups or other suitable bearings, be they rolling bearings or plain bearings.

[0097] As in Fig. 6, in a different embodiment the axial drive 72 can also be realized by a linear drive consisting of a stator 85 and an actuator 86, which can be supported on a suitable plate (not numbered here) or on another frame.

[0098] Also, as in Fig. 7 is shown exemplary and schematically, it is conceivable to mount the roll neck 51 in a double eccentric with two intermediate pieces 53 mounted eccentrically to one another, so that an adjustability of the roll neck 51 or the roll axis 50 in the axis plane 60 or strictly parallel thereto can be implemented by a suitable rotational movement of the two intermediate pieces 53 relative to one another. In this case, compensation by the respective main drive 70 is not absolutely necessary. In particular, it is also conceivable that an individual adjustability of the roll neck 51 or both roll necks 51 of the associated profile roll and / or its roll axis 50 perpendicular to the axis plane 60 is realized by the eccentric arrangement or by the two intermediate pieces 53, whereas this does not have to be provided by the main drive 70.

[0099] The axis plane drive 71 can also be operated via a piston-cylinder drive 75 as shown in the example in Fig. 8 and Fig. 9. For this purpose, two counter-rotating cylinders and pistons are provided, for example, on both sides of an associated intermediate piece 53, so that the latter can be adjusted parallel to the axis plane 60 as desired.

[0100] The axial drive 72 can also be realized via a piston-cylinder drive 75, as also shown in the Fig. 8 and Fig. 9 as an example. For this purpose, the associated roll neck 51 can, for example, be designed as a piston, which is sealingly arranged in the bearing opening of the intermediate piece 53. If necessary, a piston plate can also be attached to the roll neck 51 for this purpose.

[0101] The bearing opening (not separately numbered here) is then sealed by means of a sealing plate 58, so that a corresponding pressure can be exerted on the roll neck 51 via a hydraulic supply line (not shown in detail).

[0102] By means of a corresponding counterpart on another roll pin 51, an axial drive 72 effective in both directions along the roll axis 50 can then be implemented.

[0103] Depending on the specific design, a separate piston-cylinder drive 75 may also be attached to the intermediate piece 53. If necessary, the intermediate piece 53 may also be designed to be axially displaceable relative to the roller axis 75, provided that a corresponding axis-plane drive 71 can still be realized. This can be achieved, for example, by using an additional intermediate piece 53.

[0104] At the Fig.In the alternative axial drive 72 shown in Figure 10, both a forward and a return stroke are realized via only one roll neck 51, for example, by a piston plate 57 carrying a piston arranged in a double cylinder, which is formed in the roll neck 51. Alternatively, this can also be attached separately to the roll neck 51.

[0105] Pressure can be applied to the two cylinder chambers of the piston-cylinder drive 75 via unnumbered hydraulic supply lines in order to then be able to displace the roll neck 51 axially accordingly. List of reference symbols: 10 Section rolling mill 20 profile roller arrangement 21 profile roller 22 Top roller 23 Lower roller 24 vertical roller 30 pass line 31 Rolling Mill 33 Entrance page 34 Exit page 36 horizontal direction 37 vertical direction 38 Drive side 39 Operating side 40 rolling stands 41 stud wall 42 Crosshead traverse 43 Intermediate cross member 44 tie rods 45 Vertical stand half 46 Horizontal stud frame 47 Vertical stud frame 48 Input roller conveyor 49 Exit roller conveyor 50 roller axis 51 rolling pins 52 chock 53 Intermediate piece 57 Piston plate 58 Sealing plate 59 chock guide 60 Axis plane 70 Main drive 71 Axis plane drive 72 Axial drive 75 piston-cylinder drive 76 electric motor drive 81 threads 82 drive nut 83 drive pinion 84 Drive gear 85 Stator of a linear drive 86 Actuator of a linear drive QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 15 27 699 A1

[0002] DE 15 27 630 A1

[0002] EP 1 232 807 A2 [0002, 0039] DE 101 03 683 B4

[0002] EP 1 449 597 A2

[0039] EP 0 594 270 A1

[0039] DE 22 59 143 A

[0039] DE 10 2012 025 012 A1

[0039]

Claims

[1] Profile rolling mill (10) comprising at least one profile roll arrangement (20) arranged along a pass line (30) with at least two profile rolls (21) forming a common roll pass, which are each mounted displaceably perpendicular to an axis plane (60) arranged parallel to the pass line (30) and containing the roll axis (50) via two roll journals (51) arranged on a roll axis (50), which meet the rolling forces via a roll stand (40), characterized by , (i) that at least one profile roller (21) is mounted so as to be axially adjustable with respect to at least one of its roll necks (51); and / or (ii) that at least one of the roll necks (51) is mounted on the roll stand (40) with a component parallel to the axis plane (60) so as to be adjustable; and / or (iii) that at least one of the roll necks (51) is mounted so as to be displaceable perpendicular to the axial plane (60) independently of the other roll neck (51) supporting the respective profile roll (21); and / or (iv) that the two profile rollers (21) of the profile roller arrangement (20) are driven independently of one another and / or at least one of these two profile rollers (21) is driven independently of at least one profile roller (21) of a further profile roller arrangement (20) arranged along the fitting line (30). [2] Profile rolling mill (10) according to claim 1, characterized by that the at least one roll neck (51) is mounted displaceably on the roll stand (40) perpendicular to the axis plane (60) via a displaceable chock (52). [3] Profile rolling mill (10) according to claim 2, characterized by that the at least one roll neck (51) in the chock (52) or at least one profile roll (21) is mounted so as to be adjustable relative to the chock (52) parallel to the axis plane (60). [4] Profile rolling mill (10) according to claim 2 or 3, characterized by that the at least one roll pin (51) is adjustably mounted in an intermediate piece (53) on the chock (52). [5] Profile rolling mill (10) according to claim 4, characterized by that the intermediate piece (53) is mounted as an eccentric piece on the chock (52) and / or mounts the at least one roll pin (51) eccentrically and / or that the intermediate piece (53) is driven hydraulically and / or by an electric motor with respect to the chock (52). [6] Profile rolling mill (10) according to one of claims 1 to 5, characterized by that the profile roller (21) is mounted so as to be axially adjustable with respect to both of its roller journals (51). [7] Profile rolling mill (10) according to claim 6, characterized by that the two roll journals (51) are part of a common rolling shaft and the profile roll (21) is mounted so as to be axially adjustable with respect to the rolling shaft. [8] Profile rolling mill (10) according to one of claims 1 to 7, characterized by that the at least one roll neck (51) is mounted on the roll stand (40), on the chock (52) and / or on the intermediate piece (53) via at least one spherical roller bearing and / or via at least one bearing cap. [9] Profile rolling mill (10) according to one of claims 1 to 8, characterized by that the profile rolling mill (10) can be operated in a reversing manner or rolls in a reversing manner and / or that the profile rolling mill (10) is designed for rolling inherently stiff rolling stock, for hot rolling and / or for rolling rolling stock with a solid cross-section [10] Profile rolling mill (10) according to one of claims 1 to 9, characterized by that all profile rollers (21) forming a common rolling caliber, preferably all profile rollers (21) of the profile rolling mill (10), are driven independently of one another. [11] Rolling method for rolling profiles in a profile rolling mill (10) comprising at least one profile roller arrangement (20) arranged along a pass line (30) with at least two profile rollers (21) forming a common rolling caliber, which each rotate about a roller axis (50) for rolling, characterized by that depending on at least one specified parameter (i) at least one of the roller axes (50) is adjusted with a component in an axial plane (60) arranged parallel to the fitting line (30) and containing the roller axis (50); and / or (ii) at least one of the roller axes (50) is adjusted in its solid angle; and / or (iii) at least one of the profile rollers (21) is adjusted along its roller axis (50); and / or (iv) the roller speed of at least one profile roller (21) is controlled. [12] Rolling method according to claim 11, characterized bythat the roller speed of at least two profile rollers (21), preferably all profile rollers (21), is controlled independently of one another. [13] Rolling method according to claim 11 or 12, characterized by that a position of at least one of the profile rollers (21) and / or a rolling stock guide, a force applied to the rolling stock or by the rolling stock and / or a workpiece position, a workpiece material, a workpiece temperature, a geometry of the rolled workpiece and / or a workpiece deformation serves as a default parameter. [14] Rolling method according to one of claims 11 to 13, characterized by that reversing rolling and / or hot rolling is carried out and / or that the profile rolling mill (10) is designed for rolling inherently stiff rolling stock and / or for rolling rolling stock with a solid cross-section.

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