Profile rolling mill and method for operating a profile rolling mill

Abstract

The most reliable rolling process possible can be ensured by a flexibly adjustable guide, especially since specific requirements can then be met during rolling.

Description

[0001] The invention relates to a profile rolling mill comprising at least one profile roller arrangement arranged along a fitting line, as well as an input side and an output side opposite the input side with respect to the fitting line, wherein at least one rolling stock guide is arranged on the input side and / or output side of the profile roller arrangement. The invention also relates to a method for operating a profile rolling mill comprising at least one profile roller arrangement arranged along a fitting line, as well as an input side and an output side opposite the input side with respect to the fitting line, wherein at least one rolling stock guide is arranged on the input side and / or output side of the profile roller arrangement.

[0002] Section rolling mills with rolling stock guides are known, for example, from DE 101 03 683 B4, from DE 15 27 630 A, from DE 15 27 699 A, from DE 38 05 475 A1 and from EP 1 232 807 A2 with guide fittings attached to chocks or roller mills, from US 5 195 347, from JP 47 - 38 762, from DE 942 389 C, from JP 11 / 290 926, from JP 9 / 262 617, from JP 9 / 29 319, from JP 64 / 34 510, from JP 9 / 155 430 and from US 3 513 680 with adjustable guide bodies.

[0003] The object of the present invention is to provide a profile rolling mill and a method for operating a profile rolling mill which enables rolling to be as reliable as possible.

[0004] The object of the invention is achieved by profile rolling mills and methods for operating profile rolling mills 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 insight that rolling that is as reliable as possible can be ensured by a flexibly adjustable guide, in particular since specific requirements during rolling can then be taken into account.

[0006] In the present context, the term "profile rolling mill" refers in particular to an arrangement comprising at least one profile rolling arrangement arranged along a pass line. Depending on the specific design, the profile rolling mill may also have rolling stock guides for guiding a rolling stock passing through the profile rolling mill along the pass line and being rolled by it. These guides are or can be arranged on the input side or output side, or, if at least two profile rolling arrangements are arranged successively along the pass line, between the rolling stations.

[0007] Appropriate rolling stock feeds, such as an input roller conveyor or an output roller conveyor, can also be provided on the input side or output side.

[0008] Depending on the specific design, the profile rolling mill may also comprise a changing system for exchanging the profile roller arrangements and other units, such as the rolling stock guides, which may in particular have one or more changing carriages and the like.

[0009] In the present context, the term profile rolling mill therefore preferably refers to the mechanical unit of at least one profile rolling arrangement by means of which a rolling stock can be rolled into a profile and which preferably has a rolling stock feed and a rolling stock removal, so that the profile rolling mill can be integrated into an overall plant or a rolling plant.

[0010] In this case, the profile rolling mill is often used in a standalone position, i.e. only with the profile roller arrangement or with other rollers arranged along the pass line.

[0011] Profile rolling mills have a forming effect on the rolled stock, whereby it is conceivable that two or more profile rolling mills act on the rolled stock successively, but simultaneously, or at least in a continuous operation. Alternatively or cumulatively, in the present context, a "profile rolling mill" can be understood as an arrangement of one or more profile rolling mills 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 rolls is a profile rolling mill.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] 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 for the use of a rolling mandrel to enable hollow profiles or, given the rolling forces and rolling speeds applied, the reliable maintenance of cavities aligned along the length of the rolled stock cannot generally be guaranteed.

[0016] Profiles, unlike wire in particular, are generally inherently rigid and therefore should not, are not, or cannot be rolled up or spooled 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 a small extent to bending forces 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.discharge units, such as correspondingly long roller conveyors without the possibility of unwinding or winding the rolled material or profiles.

[0017] 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.

[0018] 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 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.

[0019] In this context, profiles can be characterized by a longitudinal extension that is significantly longer than the perpendicular extension of the profile, with the profile cross-section preferably deviating from a round profile cross-section and remaining constant along the longitudinal extension within specified limits. It is not mandatory for the profile to extend along a straight line along its longitudinal extension.

[0020] Rather, it is conceivable that the longitudinal extension follows 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 periodically along the longitudinal direction if rolls with a surface that changes over the roll circumference are used. It should be noted that if the rolled stock is elongated during use of such profile rolls, this may cause problems if multiple passes are to be rolled.

[0021] 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 clearance 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.

[0022] Accordingly, the term "profile roll arrangement" in this context refers in particular to any arrangement of at least two rolls 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.

[0023] 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 constitute 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.

[0024] In this 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.

[0025] It is understood that, if necessary, several such profile roll assemblies can be combined one behind the other by arranging them along the fitting line. At least two profile roll assemblies 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 assemblies arranged along the fitting line. This applies in particular if the profile roll assemblies 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 assemblies. 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 overall arrangement as a profile rolling mill comprising at least one profile roll arrangement made up 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 process rolled stock that is to be further profiled, all of the profile rollers can even be designed as universal rollers.

[0026] Profiled rolls, in particular, are referred to as "profile rolls" in this context. As a rule, the profiling of the respective roll is 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 can 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, can 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.

[0027] As a rule, the profile rollers will each have roller axes that are essentially aligned perpendicular to the pass line or have their largest directional component perpendicular to the pass line. It is 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.

[0028] In this context, the term "pass line" preferably refers to an idealized line through the respective section rolling mill or 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 pass line, the pass line can, for example, represent approximately the center of the rolling stock passing through.

[0029] On the other hand, it is also common practice, for example, to standardize the fitting line to an inlet or outlet roller row or to align its height to the running surface of the respective roller conveyor(s). Ultimately, the fitting line is a defined or imaginary line through the respective profile rolling mill, which often serves as a reference for assemblies that are to be positioned or adjusted relative to the rolling stock passing through. Since these are relative specifications, these relative values ​​can simply be converted accordingly by a parallel offset if a different fitting line is selected.

[0030] 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, a profile roll arrangement consisting of profile rolls is generally located at each rolling station arranged along the pass line to provide a profile rolling mill. It is understood that in special cases, when very specific profiles must be rolled, only one of the two rolling stations may be equipped with 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.

[0031] In particular, the rolling stations can be provided on a common staggered stand or on separate rolling stands arranged along the pass line.

[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] The rolling stand can, depending on the specific design of the section rolling mill, extend over several stand positions. Preferably, the rolling stand is at least designed 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 for this purpose, although, on the other hand, 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. In particular, between the rolling positions, and in particular also on the input side orOn the output side, rolling stock guides with corresponding guide stands may also be provided, which may also be operatively connected to the rolling stands or formed together with them.

[0034] It is conceivable that individual profile rolls simply rotate as the rolling stock passes through them, yet still exert 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 profile rolls in a profile rolling mill can be driven.

[0035] The corresponding drive is provided by 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, 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 roll necks can be attached to the roll shaft or even formed integrally with it to form part of a common roll shaft.

[0036] 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., the forming process. This applies regardless of whether the respective profile roll is driven or not.

[0037] In order to transfer the rolling forces from the roll necks to the roll 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 supported directly or indirectly on the roll stand or are guided by it.

[0038] Preferably, the chocks are designed in particular to support the roll necks in a rotatable manner, which can be achieved, for example, by suitable rolling or plain bearings. Accordingly, the bearings are also preferably designed in such a way that they can withstand the rolling forces during a rotary movement of the profile rolls and roll necks.

[0039] 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 particularly advantageous 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 rotating 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.

[0040] This displacement, which essentially influences the roll pass, can preferably be driven by a main drive, which in profile rolling mills is often implemented as a hydraulic piston-cylinder arrangement. 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. Preferably, the respective main drive is 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.

[0041] In the present context, the term "rolled stock guide," which has already been used several times above, preferably refers to the actual arrangement by which the rolled stock is guided at the inlet and outlet sides, or between the rolling stations or between the profile roll arrangements, if applicable, and which serves in particular to guide the rolled stock into the subsequent rolling pass with as little damage as possible. Irregularities, burrs, or bends, in particular, can lead to rolled stock being fed at the inlet or outlet sides, for example, via roller conveyors, protruding beyond the rolling pass on one side and striking the rolls upon insertion.This is intended to be counteracted by rolling stock guides, which are well known in the art. In particular, rolling stock guides can generally also be provided on the output side, which are intended to serve as rolling stock guides in the case of reversing rolling during a reversing pass. In the present context, the term "rolling stock guide" is therefore used objectively. With regard to the term "guide," depending on the context, this refers to the process or a correspondingly effective guiding arrangement.

[0042] The rolling stock guide will generally only have a guiding effect on the rolled stock, unlike the profile rolls, whose intended purpose is generally to have a forming effect on the rolled stock, at least during one pass. Depending on the specific process situation, it is conceivable that the rolling stock guide can nevertheless have a bending effect on the rolled stock, preferably only in the elastic range, in order to have a corresponding guiding effect, especially if the rolled stock deviates too significantly from the pass line. If necessary, the rolling stock guide can even have a forming effect on the rolled stock to such an extent that it has a bending effect on the rolled stock in the plastic range, although the rolling stock guide will generally not have a material-displacing effect on the rolled stock, as this is generally reserved for profile rolls.

[0043] The rolling stock guide typically comprises at least one guide body, which is designed and intended to come into guiding contact with the rolling stock as it passes through the profile rolling mill along the pass line. However, the rolling stock guide will typically comprise several such guide bodies, which can and should accordingly come into guiding contact with the rolling stock.

[0044] The respective guide bodies are usually carried by guide beams, adjustment devices or additional beams of the respective rolling stock guide, which can then accommodate the guides and divert them in a suitable manner.

[0045] It is not absolutely necessary for the rolling stock to be in constant contact with at least one guide element of the rolling stock guide during rolling, which ultimately leads to significant wear. Depending on the specific process, the profile rolling mill can be operated in such a way that contact between the rolling stock and the guide element(s) is minimized or avoided as much as possible.

[0046] Each guide body can be assigned a main guide direction, which ultimately represents the vectorial sum of the guide forces introduced into the rolling stock on the guide body and / or can be defined in particular by the surface design of the respective guide body, its orientation in relation to the guide caliber or in relation to the fitting line and / or by the arrangement of the guide body in relation to its supports, adjustment devices or guide supports.

[0047] As already explained above, the section rolling mill can be operated with a changing rolling direction in multiple passes. Accordingly, the definition of "entry side" or "exit side" may be ambiguous if only individual passes are considered. In this context, the terms "entry side" and "exit side" are therefore preferably defined such that the entry side is the side of the staggered stand or section rolling mill to which the rolled stock is fed during the first pass. The side of the staggered stand or section rolling mill opposite the pass line is then the exit side, regardless of whether the rolled stock exits the section rolling mill to this side or to the entry side after rolling.

[0048] In order to enable rolling to be as reliable as possible, a profile rolling mill which comprises at least one profile roller arrangement arranged along a fitting line and an input side and an output side opposite the input side with respect to the fitting line, and in which at least one rolling stock guide is arranged on the input side and / or output side of the profile roller arrangement, can be characterized in that the rolling stock guide comprises at least one guide funnel formed by at least two guide bodies with linearly independent main guide directions, all of the guide bodies forming it being adjustable.By means of such a designed guide funnel, a flexible adaptation of the guide funnel to different rolling situations can be achieved, such as to different cross-sections of the rolling stock during different passes or to different profiles that are to be rolled, which accordingly then enables a safe guidance by means of a corresponding rolling stock guide with such a guide funnel.

[0049] If a profile rolling mill which comprises at least one profile roller arrangement arranged along a fitting line, as well as an input side and an output side opposite the input side with respect to the fitting line, and in which at least one rolling stock guide is arranged on the input side and / or output side of the profile roller arrangement, is characterized in that the rolling stock guide comprises at least one guide body with a convex and / or surface-treated contact surface, then, cumulatively or alternatively to the combinations of features listed here as advantageous, the most reliable rolling possible can be achieved. The correspondingly designed contact surface enables very reliable guidance, in particular even with different rolling stock cross-sections orin the event of changes in the rotational position of the respective surface areas, so that the risk of markings or canting can be minimized, the latter of which may even lead to accident situations.

[0050] Cumulatively or alternatively to the combinations of features presented here as advantageous, a profile rolling mill comprising at least one profile roller arrangement arranged along a fitting line and an input side and an output side opposite the input side with respect to the fitting line, wherein at least one rolling stock guide is arranged on the input side and / or output side of the profile roller arrangement, can be characterized in that the rolling stock guide comprises at least two guide bodies arranged successively along the fitting line, which can be adjusted in at least one directional component independently of one another or independently of a profile roller of the profile rolling mill in order to enable rolling that is as reliable as possible.Such a design enables individual adjustment of the guide caliber along the pass line, which allows very precise guidance or targeted interventions on the path of the rolled material in front of, behind or between the profile roller arrangement(s) of the profile rolling mill.

[0051] In particular, a guide pass can be formed by a rolling stock guide, which ultimately can preferably be achieved by the guide bodies of the respective rolling stock guide. To the extent that these guide bodies are adjustable, i.e., displaceable relative to the guide pass, the guide pass can be adjusted accordingly, for example, depending on suitably selected preset parameters, and thus adapted to the respective conditions. By means of two guide bodies arranged successively along the fitting line, which can be adjusted independently, the guide pass can then be designed to be adjustable along the fitting line.

[0052] Accordingly, cumulatively or alternatively to the other feature combinations explained here as being advantageous, a profile rolling mill which has at least one input side along a fitting line of the arranged profile roller arrangement and an output side opposite the input side with respect to the fitting line and in which at least one rolling stock guide is arranged on the input side and / or output side of the profile roller arrangement, can be characterized in that the rolling stock guide can be adjusted to a guide pass, the center line and / or an edge line of which has at least one extreme and / or turning point that can be adjusted parallel to the fitting line and / or at least one maximum and / or at least two turning points in order to enable rolling that is as reliable as possible.

[0053] Likewise, a method for operating a profile rolling mill comprising at least one profile roller arrangement arranged along a fitting line and an input side and an output side opposite the input side with respect to the fitting line, wherein at least one rolling stock guide is arranged on the input side and / or output side of the profile roller arrangement, can be characterized cumulatively or alternatively to the combinations of features explained here in that a guide pass is formed by the rolling stock guide, the center line and / or an edge line of which has at least one extreme and / or turning point that can be adjusted parallel to the fitting line and / or at least one maximum and / or at least two turning points in order to enable rolling that is as reliable as possible.

[0054] In particular, the ability to adjust extreme points, i.e. maxima and minima, or turning points, means that the guide pass can be adapted to the desired path of the rolled stock as it passes through the rolling stock guide. Depending on the specific requirements, a breakaway rolled stock can then be caught more gently and precisely than is possible with guides that only have guide funnels that narrow to a minimum. For example, the rolled stock can even be deflected and redirected perpendicular to the pass line in a targeted manner in order to specifically influence the rolling process. Such measures can, under certain circumstances, achieve increased rolling speeds. If necessary, corresponding displacements can also take place during the rolling process, for example, although it goes without saying that corresponding adjustment is often also necessary before or after rolling or rolling.between individual passes. On the other hand, it is conceivable that corresponding adjustment processes could also be carried out during rolling, particularly when the leading end of the rolled stock passes the profile rolling mill, but also intermittently, if this appears necessary or advantageous.

[0055] Accordingly, a method for operating a profile rolling mill, which comprises at least one profile roller arrangement arranged along a fitting line and an input side and an output side opposite the input side with respect to the fitting line, and in which at least one rolling stock guide is arranged on the input side and / or output side of the profile roller arrangement, can be characterized in that a guide pass is formed by the rolling stock guide, in the center line of which and / or in an edge line of which a maximum is formed or formed perpendicular to the fitting line in order to enable rolling that is as reliable as possible cumulatively or alternatively to the other combinations of features explained here as being advantageous.As already briefly explained above, such a maximum guide pass, which is provided centrally in the rolling stock guide and extends along the pass line, can temporarily shift the rolling stock perpendicular to the pass line before it is further rolled, for example, in a subsequent profile roll arrangement. Such loop formation or temporary deflection of the rolling stock can, under certain circumstances, be advantageous for accelerating the rolling process or for other rolling-related purposes, depending on the process.

[0056] For guiding interaction with the rolling stock, a rolling stock guide will generally comprise guide bodies, which in the given context are referred to as those physical components of a rolling stock guide that can come into guiding contact with the rolling stock. Depending on the specific process, such contact during rolling can be relatively intensive. This naturally leads to correspondingly high stress on both the rolling stock and the respective guide body. On the other hand, it is conceivable that, depending on the specific circumstances, a guide body or parts thereof come into contact with the rolling stock hardly at all, very rarely, or only briefly. In particular, it is also conceivable that no contact between a specific guide body or even several guide bodies and the rolling stock occurs during a rolling process, which is then correspondingly gentle on the rolling stock itself and also on the guide body.Particularly in such process situations, the rolling stock guide or the corresponding guide body often only serves safety aspects, whereby it is also conceivable that even contact with such a guide body is assessed as an impending emergency situation, which can then require corresponding measures, for example a readjustment of the guide body or the guide bodies or other units involved in the rolling process, or an emergency stop.

[0057] As already indicated above, the interaction of the guide elements with the rolling stock generally occurs parallel to a main guide direction or in the direction of a main guide direction, which can be defined in particular by the surface design of the respective guide element, its orientation with respect to the guide pass or with respect to the pass line, and / or by the arrangement of the guide element with respect to its guide support, with respect to adjustment devices, and / or with respect to other parts of a guide stand. If necessary, the vector sum of the guide forces introduced into the rolling stock by the guide element can also be defined as the main guide direction.

[0058] Since the rolling stock guide is to have at least two guide bodies with linearly independent main guide directions, this requires that the two main guide directions should not be parallel, as this ultimately corresponds precisely to the definition of linear independence. It is understood that, as long as the main guide directions lie in one plane, no more than two linearly independent main guide directions can occur.

[0059] This applies in particular to considerations regarding a guide funnel, which in the present context can be defined in particular as a guide boundary arranged perpendicular to the pass line.

[0060] As a rule, however, there will be more than two guide bodies on a rolling stock guide if these guide bodies have linearly independent main guide directions, since the aim is generally for rolling stock guides to have or be able to have a guiding effect from all sides in the direction of the fitting line or in the direction of the rolling stock passing the section rolling mill along the fitting line.

[0061] Rolling stock guides that are opposite one another with respect to the fitting line therefore generally have parallel but opposite main guide directions, which can be considered linearly dependent. Accordingly, it is particularly conceivable, for example, for a rolling stock guide to have two horizontally acting guide bodies, which can act on the rolling stock opposite one another with essentially horizontally directed main guide directions, and two vertical guide bodies, which can act on the rolling stock with essentially horizontally directed main guide directions on both sides of the fitting line. The horizontal guide bodies and the vertical guide bodies then have main guide directions that are linearly dependent on one another; however, there is then a linear independence from the main guide directions of the differently aligned guide bodies.It is understood that, depending on the specific implementation, a distinction between horizontal guides and vertical guides is not mandatory. In particular, guides or guide bodies and their main guide directions can also be inclined at angles to the vertical or horizontal direction.

[0062] As already indicated above, the guide bodies of a rolling stock guide generally form a guide groove, which is bordered by the guide bodies along the fitting line and extends with the guide bodies along the fitting line. Depending on the specific design, it is not absolutely necessary for the guide groove to be continuously surrounded by guide bodies, since the rolled stock, although it may be relatively easily plastically deformed during rolling in the profile drive due to preheating or due to the energy introduced into the rolled stock during rolling, can still exhibit a certain inherent rigidity and, within small limits, even a certain inherent elasticity, so that sufficiently reliable guidance of the rolled stock can be ensured even if the guide bodies forming the associated guide groove are spaced apart from one another by a certain distance.

[0063] The corresponding distances are preferably selected in a suitable manner depending on the rolling process and in particular on the plastic properties of the respective rolling stock during the associated rolling process, especially since such rolling processes are generally not one-off activities, so that the respective conditions and thus in particular also the plastic behavior of the rolling stock are known in advance to a sufficient extent in order to be able to define the required minimum distances of the guide bodies.

[0064] Depending on the specific implementation, an appropriate distance between the guide bodies can be selected both with regard to the arrangement of the guide bodies around the fitting line and with regard to the arrangement of several guide bodies successively along the fitting line.

[0065] Accordingly, in the present context, the guide caliber can be defined as the space surrounded by the guide bodies, within which the freedom of movement of the rolled stock is effectively limited as it passes through the profile rolling mill along the pass line.

[0066] To the extent that the guide bodies are adjustable in any way, the guide caliber will preferably also be considered adjustable.

[0067] Insofar as the geometric shapes of the guide caliber are important in the present context and the rolling stock guidance includes areas in which no guide bodies can be found, but which cannot be penetrated by the rolling stock for which the corresponding profile rolling mill or the corresponding rolling stock guidance is designed, since the rolling stock cannot reach or penetrate the areas due to its inherent rigidity and the guide bodies in the vicinity of these areas, the guide caliber can be defined in a continuous extrapolation of the guide bodies adjacent to these areas.

[0068] Preferably, any extreme points, i.e. maxima or minima, of the guide caliber, especially if these are found in a line containing the fitting line or in a plane parallel to the fitting line, are formed by a guide body. When checking the guide caliber for maxima or minima, i.e. extreme points, straight lines parallel to the fitting line can be selected to bridge the respective ends of the guide bodies leaving an open area to define the guide caliber in the areas where the guide caliber is not limited by guide bodies. This means that maxima or minima, i.e. corresponding extreme points on edge lines, i.e. on lines that lie in a plane containing the fitting line or in a plane parallel to the fitting line, are usually formed by a guide body, i.e. are physically formed.

[0069] The same may apply to any turning points of the edge lines, although this does not appear to be absolutely necessary.

[0070] With regard to the spacing of guide bodies in a plane oriented perpendicular to the fitting line, for example in a hopper plane or in a guide hopper, a definition of maximum points of the guide pass does not appear necessary, since in the cross-section it is ultimately the cross-section of the respective rolled stock that determines the geometry of the rolled stock guide or the arrangement of the guide bodies. For example, extreme shapes of the rolled stock, such as the arms of an H-beam, can protrude into areas open by the guide, which are specifically left in the rolling stock guide for such shapes of the rolled stock. In such cases, corresponding areas of the guide pass can be defined as the space left by the guide for such shapes or as an enveloping surface that is sufficiently generous for the rolled stock.

[0071] In the present context, a maximum of a corresponding line, for example, a center line or a boundary line, is understood to be an extreme point which, viewed in isolation, leads to a maximum caliber cross-section at this point. In contrast, a minimum of such a line exists if, based on this extreme point, a minimum caliber cross-section can be defined at this point. Corresponding lines preferably lie in a plane that contains the fitting line or is aligned parallel to the fitting line, so that corresponding maxima or minima, i.e. corresponding extreme points, affect the course of the guide along the fitting line.

[0072] When running along the corresponding line, which is to be checked for maxima or minima, a minimum initially results in a

[0073] Reduction in the cross-section of the guide caliber or the distance of this line from the fitting line until the minimum is reached, and then, as the fitting line is continued, an increase in the guide caliber or an increase in the distance of this line from the fitting line is observed. The reverse applies to maxima: as the maximum is approached along the fitting line, this leads to an increase in the guide caliber or an increase in the distance of this line from the fitting line until the actual maximum is reached, and then, as the fitting line is continued, a reduction in the guide caliber or the distance of this edge line from the fitting line is observed.

[0074] Turning points, on the other hand, occur when the direction of curvature, which - as can be seen from the above explanations - remains the same when passing through a maximum or a minimum, changes.

[0075] Ultimately, the concepts of extreme points, inflection points, maxima and minima can be defined directly and, based on mathematics, in a generally valid manner according to the mathematical definitions for such points in space.

[0076] The guide bodies forming a guide funnel can intersect a common funnel plane aligned perpendicular to the fitting line, in which the corresponding guide funnel then lies.

[0077] Depending on the specific definition of the guide funnel, the areas of the associated guide bodies located in the funnel plane can be considered the boundary of the guide funnel, so that the guide funnel can be defined as an abstract border of the guide caliber perpendicular to the fitting line. With such a definition of the guide funnel, it follows that guide funnels will be found along the fitting line, each positioned adjacent to the funnel plane, according to the course of the guide caliber.

[0078] However, corresponding to the term "guide funnel," there are also definitions in which the guide funnels are each delimited by extreme points of the guide pass along the pass line. Upon entry into a rolling stock guide, this will often narrow in a funnel shape, regardless of which side the entry into the guide pass occurs from, in order to be able to adequately capture the incoming rolling stock. Such a funnel, by definition, then preferably extends to a first minimum of the guide pass or to the first minima of the associated edge lines. Accordingly, the term "guide funnel" can then be defined as extending to the next extreme points until the exit of the associated rolling stock guide is reached.In this respect, a guide caliber can be constructed by successively placed guide funnels, each of which is defined up to the extreme points, whereby at the inlet and outlet sides of the guide caliber, the guide funnels are limited on one side by the inlet and outlet sides of the guide caliber and on their other side by an extreme point.

[0079] Depending on the specific implementation, the guide bodies, which form a guide hopper and have linearly independent main guide directions, do not necessarily have to be located in a hopper plane perpendicular to the pass line, nor do they have to have regions located in a common hopper plane. Rather, these assemblies can also be arranged successively along the pass line, as long as the rolling speeds and the inherent stability or plastic properties of the rolled stock allow the corresponding guide bodies to ensure sufficiently stable guidance in both linearly independent main guide directions.

[0080] In the present context, the claimed combinations of features apply to guide funnels regardless of how they are now specifically defined.

[0081] To the extent that hopper planes or cross sections of the guide pass are or can be defined perpendicular to the fitting line, each cross section can also be assigned a center point, which can in particular be determined as the geometric center of gravity of an associated and just defined guide hopper. Preferably, only the actual physical boundaries of the guide pass are used for such center point calculations. The juxtaposition of correspondingly determined center points along the fitting line can then preferably result in the center line of the guide pass, which - as already explained above - can have extreme and / or turning points that can be adjusted parallel to the fitting line and / or at least one maximum and / or at least two turning points in order to enable a correspondingly designed or adaptable guide pass, which in turn enables the most reliable rolling possible.

[0082] By possibly positioning the extreme and / or turning points parallel to the fitting line, the guide pass can be adapted accordingly to given conditions during rolling. Such adaptation can preferably be achieved by correspondingly displacing guide bodies along the fitting line. However, it is also conceivable and feasible for positioning guide bodies perpendicular to the edge of the guide pass or perpendicular to an edge line, and in particular in a plane perpendicular to the fitting line, to lead to a displacement of extreme and / or turning points along the fitting line. This can be particularly useful if the rolled stock is to be deflected between two profile roll arrangements perpendicular to the fitting line, for example in order to be able to increase the rolling speeds in this way.The rolling stock guide can be optimised, for example, by means of appropriate controls in which, for example, the forces acting on the rolling stock guides are measured, in order to be able to target a corresponding deflection with the lowest possible friction.

[0083] The same applies if the center line or the edge line of the guide pass has a maximum. It can generally be assumed that such a maximum will be found centrally in the guide pass when viewed along the fitting line. This is because, by definition, maximum values ​​of the guide pass or the edge line will generally be found on the inlet or outlet side of the guide pass. However, these values ​​may not be considered a true maximum due to the discontinuity there. With a suitable design of the guide pass, such a central maximum also makes it possible to deflect the rolling stock centrally and, if necessary, to form a loop corresponding to the maximum or to specifically provide the space required for this within the rolling stock guide.

[0084] It can be advantageous if the corresponding maximum can be changed perpendicular to the fitting line by means of assemblies that can be adjusted perpendicular to the fitting line, so that the extent of the loop in which the rolled stock can deflect can be influenced in a targeted and direct manner. For example, it is conceivable that the extent of the maximum at the start of rolling or at the end of each pass is desired to be different than when rolling the central area of ​​the rolled stock. On the other hand, it goes without saying that the maximum or the guide body(es) responsible for the maximum can be designed so that it can be adjusted parallel to the fitting line in order to adapt this maximum to the desired requirements and existing conditions, even parallel to the fitting line. As already explained above, a maximum of the guide calibre orwhose center line or an edge line thereof can also be formed or changed in its extent by other displacement directions of the guide bodies, as can be easily understood from basic geometric considerations.

[0085] In particular, it is also conceivable for the maximum to be formed or recessed perpendicular to the fitting line during rolling, which means that, for example, no maximum is provided initially and the corresponding guide space or a corresponding maximum of the guide pass, whose center line or at least one of its edge lines is made available, i.e., formed, during the rolling process, i.e., while the rolled stock passes the profile rolling mill and, in particular, the corresponding rolled stock guide. It is also conceivable for the maximum to be formed again during rolling, i.e., the guide pass is changed in such a way that there is no longer a maximum. This can be achieved, for example, by appropriately shifting adjacent guide bodies away from the fitting line or by shifting the guide body forming the maximum towards the fitting line.

[0086] As a rule, an extreme point, i.e. a maximum or a minimum, or a turning point in a boundary line will not be found singularly, but neighboring boundary lines will also have a corresponding extreme point or turning point to a greater or lesser extent at the corresponding height of the fitting line, so that a group of boundary lines will have a corresponding extreme point or turning point at the corresponding height.

[0087] It is understood that, depending on requirements, the maximum can also be formed or re-formed between individual rolling processes, in particular, for example, between individual passes, if this appears necessary.

[0088] In particular, it is conceivable that a minimum is formed or formed in a further edge line or in a further edge line group opposite the maximum of the edge line or of a group of edge lines in order to deflect the rolling stock accordingly at given times in a targeted manner by reducing the guide caliber accordingly by means of this minimum.

[0089] Corresponding to a central maximum, which will usually be flanked by corresponding minima, it proves advantageous if the center line and / or a peripheral line of the guide caliber has at least two turning points. Such a design can also realize a corresponding variation of the guide caliber, as already explained above, especially if the turning points are then adjustable.

[0090] Regardless of whether extreme and / or turning points can be set parallel to the pass line, it can be advantageous if an extreme and / or turning point can be set or is set perpendicular to the pass line. Accordingly, it can also be advantageous if at least one turning point can be set or is set with a component perpendicular to the pass line. This allows for advantageous responses to conditions that may arise during rolling when designing the guide hopper or guide pass.

[0091] The adjustment of extreme and / or turning points, or the shaping of maxima and minima, is preferably carried out depending on defined parameters. The same naturally also applies to the adjustment of the guide bodies or other assemblies described here as adjustable.

[0092] 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, direct measured values ​​that provide information about the condition of the profile rolling mill and the associated equipment can serve as specification parameters. Likewise, measurements taken directly on the rolled stock, such as geometric measurements, temperature measurements, or similar, can 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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 pass line can also be recorded as process data or stored in the process memory.

[0099] 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.

[0100] It is also conceivable, either cumulatively or alternatively, to use corresponding data from a parameter memory in 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.

[0101] 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.

[0102] Preferably, at least three, in particular at least four, guide bodies form the guide funnel, ensuring guidance from as many sides as possible. On the other hand, it is understood that significantly more guide bodies can be provided if necessary, in order to adapt to changing rolled stock cross-sections, which may be the case, for example, during different passes. For this purpose, it can be advantageous if a sufficient number of these guide bodies are designed to be adjustable accordingly.

[0103] On the other hand, the guide bodies can be aligned from very different directions or angles with respect to the fitting line, if necessary, to ensure not only an all-round effect, as is possible, for example, with guide bodies with three main guide directions, each arranged at an angle of 120°, or with four guide bodies with main guide directions, each arranged at an angle of 90° to one another. Instead, five guides with main guide directions at an angle of 72° or seven guide bodies with main guide directions at an angle of 51.5° can be arranged, for example, in order to distribute forces, in particular guiding forces, as evenly as possible on all sides in a hopper plane and apply them to the rolled stock.

[0104] As already explained above, it is advantageous if all guide bodies forming the guide funnel are adjustable, which - in particular in contrast to JP 9 / 262 617 - enables a high degree of adaptability to given conditions and in particular to differences during the individual passes, whereby, in deviation from this, according to JP 9 / 262 617, the lower lateral rails are not designed to be adjustable.

[0105] In this context, the adjustability of an assembly, especially the guide bodies, enables its targeted displacement. Preferably, the displacement occurs depending on selected predefined parameters, which enables the targeted control of these assemblies, especially the guide bodies. Corresponding control loops through or for such adjustability are also conceivable.

[0106] Adjustment can be achieved hydraulically, by electric motor, or by other means. The associated drives are preferably designed so that adjustment can also be performed under load, which particularly allows intervention during the rolling process.

[0107] At least two of the guide bodies forming the guide funnel can preferably be adjustable independently of one another, wherein an independent adjustability of two guide bodies, even if they do not form a guide funnel and do not have linearly independent main guide directions, can be advantageous in order to be able to influence the rolling process individually.

[0108] In particular, at least three, and in particular all, of the guide bodies forming the guide funnel can be independently adjustable, allowing for individual adjustment to changing cross-sections of the rolled stock, such as those required for different passes or when different profiles are to be rolled. This is also advantageous regardless of whether the corresponding guide bodies have linearly independent main guide directions or not, or regardless of whether they jointly form a guide funnel or not.

[0109] The guide bodies forming the guide funnel can be arranged on a common guide frame. This allows the associated guide bodies to stably span the guide caliber or the guide funnel according to the guide frame. It is understood that additional guide bodies can also be arranged on the guide frame, regardless of whether they are involved in forming the guide funnel or not. In particular, guide bodies arranged successively along the fitting line can also be arranged accordingly on a guide frame, so that they can be positioned appropriately relative to one another and with sufficient stability.

[0110] Depending on the specific implementation, the guide bodies can be individually adjustable with respect to the guide frame, so that a particularly individual reaction to changed rolling stock cross-sections or to changed conditions during rolling is possible.

[0111] It is understood that such guide frames, on which at least two or more, in particular all, guide bodies of a rolling stock guide are arranged, can also be correspondingly advantageous, regardless of the other features of the present invention, in a profile rolling mill which comprises at least one profile roller arrangement arranged along a fitting line and an input side and an output side opposite the input side with respect to the fitting line, and in which at least one rolling stock guide is arranged on the input side and / or output side of the profile roller arrangement.

[0112] Depending on the specific implementation, the guide frame itself can be designed to be adjustable relative to the pass line, allowing for particularly quick and stable responses to any situations during rolling. In particular, by adjusting the guide frame, the entire guide caliber or one or more corresponding guide funnels, which are determined by the associated guide bodies, can be relocated accordingly if necessary.

[0113] The guide bodies forming the guide funnel can comprise at least one guide roller, which appears to enable relatively gentle guidance of the rolled stock running along the pass line. In particular, such rolling contact with the rolled stock not only enables lower frictional forces and friction phenomena, but also shorter contact between the guide body and the rolled stock in the respective areas contacting the rolled stock, thus reducing the thermal load on the guide body accordingly.

[0114] On the other hand, the guide bodies forming the guide hopper can comprise at least one guide rail, which can ensure long and continuous guide contact along the pass line, so that the rolling stock can be guided accordingly reliably. Additional cooling measures can be provided if deemed necessary for thermal reasons.

[0115] In particular, a scraper can serve as a guide rail, the purpose of which is to be arranged as close as possible to one of the profile rollers and to prevent any possible adhesion of rolled material to the profile roller as far as possible.

[0116] It is understood that the design of the guide bodies as a guide roller or guide rail, preferably as a scraper, can already show corresponding advantages regardless of whether these guide bodies together form a guide funnel or not or are arranged together on a guide frame or not.

[0117] In particular, guide rollers and guide rails can also be used in combination, which can have corresponding advantages on the one hand over the circumference of the guide caliber around the fitting line and on the other hand with regard to a successive arrangement of the corresponding guide bodies along the fitting line.

[0118] As already explained above, it is advantageous if the rolling stock guide comprises at least two guide bodies arranged successively along the fitting line, which can be adjusted in at least one directional component independently of one another or independently of a profile roll of the profile rolling mill in order to enable rolling that is as reliable as possible.

[0119] In the present context, two guide bodies are considered to be arranged successively along a matching line if their beginning and end are located in different planes perpendicular to the matching line. Accordingly, guide bodies that are already offset from one another along the matching line are considered to be arranged successively along the matching line.

[0120] In particular, the two guide bodies arranged successively along the fitting line can be arranged on a common edge line of the guide pass spanned by them. However, taking into account the inherent rigidity of the rolling stock to be rolled, guide bodies arranged slightly offset perpendicular to the fitting line can also be defined as being arranged on a common edge line, provided that the mathematical definition of a line with respect to the edge line is deviated from in such a way that the edge line is widened by an amount along the outer boundary of the guide pass perpendicular to the fitting line, which amount can be regarded as a guide at the same point of the rolling stock in its cross-section, depending on the dimensions of the rolling stock and its inherent rigidity.This dimension can therefore also be regarded as the clearance within which a guide body can be displaced parallel in a plane intersecting the fitting line perpendicularly, without this having a significant influence on the effect of the guide body with regard to the guidance desired for the rolled material.

[0121] Accordingly, very slightly offset and overlapping guide bodies can be arranged successively, particularly along the fitting line, so that these guide bodies can act successively on the rolling stock with essentially parallel main guide directions.

[0122] The adjustability of such two guide bodies arranged successively along the fitting line in at least one directional component independently of each other then makes it possible for one guide body to be displaced along at least one directional component independently of the other guide body.

[0123] The relevant directional components in this regard are, on the one hand, displacement possibilities parallel to the fitting line. On the other hand, these can preferably be displacement possibilities perpendicular to the fitting line or in a plane oriented perpendicular to the fitting line. In this regard, a significant distinction can be made between directional components directed perpendicular to the respective surface of the guide caliber and directional components directed parallel to the surface of the respective guide caliber at this point.

[0124] By means of adjustments with a directional component that is perpendicular to the pass line or in a plane perpendicular to the pass line and perpendicular to the surface of the guide pass, the guide pass can be expanded or reduced particularly drastically, or the distance between the surface of the guide pass and the rolled stock or the pass line can be increased or decreased accordingly. The adjustments are somewhat less drastic if the directional component runs parallel to the surface of the guide pass in a plane perpendicular to the pass line. This results in an approximately lateral displacement of the respective guide body, which can be used to achieve a particularly suitable adaptation of the guide pass to changed cross-sectional shapes of the rolled stock, for example.

[0125] By shifting or adjusting a guide body parallel to the fitting line, the length of the guide caliber can be lengthened or shortened accordingly. This also allows the distance between the two guide bodies arranged successively along the fitting line to be directly changed, which can be advantageous, for example, if an extreme point, such as a minimum or maximum of a corresponding edge line, is to be formed or molded between these two guide bodies.

[0126] Furthermore, by independently adjusting one of two guide bodies arranged successively along the pass line, a stripper or another guide body can be moved closer to or further away from a profile roll, independently of a profile roll of the profile rolling mill, without the need to significantly alter the rolling stock guidance system, particularly on the side facing away from this roll. Stripped-off rolling stock can then continue to be guided in a targeted manner, for example, by the rolling stock guidance assemblies facing away from the associated roll. Such a displacement can also be advantageous, for example, to vary the axial extent of the rolling stock guidance system, for example for setup work, roll changes, or similar.

[0127] As a directional component in which the two guide bodies arranged successively along the fitting line can be adjusted independently of each other, an angle of adjustment between the two guide bodies can also be selected, whereby the rolling stock can be guided in a targeted and variable manner, in particular along an edge line of the guide body.

[0128] However, the adjustability of guide bodies with regard to their angle of incidence relative to other guide bodies or to the fitting line can also be advantageous, regardless of whether the corresponding guide body interacts successively with another guide body or is arranged successively along the fitting line to this guide body, in order to be able to vary the manner in which the rolling stock guide can act on the rolling stock in a guiding manner.

[0129] In particular, as already explained above, the guide bodies can be guide rails, preferably wipers. Accordingly, it can also be advantageous if the two guide bodies arranged successively along the fitting line are independently adjustable guide rails, one of which can be a wiper, for example. On the other hand, it is understood that at least one of the guide bodies can be a guide roller, which can be adjusted independently of the other guide bodies.

[0130] It is understood that, if necessary, guide rollers and guide rails can also be arranged successively one behind the other in order to design a correspondingly suitable guide.

[0131] If two guide rails are arranged successively along the fitting line, at least one of which is adjustable independently of the other, these two guide rails can be connected to each other in an articulated manner, particularly if the angle of inclination between the guide rails is to be changed. The articulated connection allows the guide rails to be stabilized relative to each other, which is advantageous in terms of stable guidance and stabilization of the guide caliber.

[0132] As already explained above, it can be advantageous if at least one of the two guide bodies arranged successively along the pass line can be adjusted both perpendicular to the pass line and parallel to the pass line. This allows for as many degrees of freedom as possible regarding the way in which the guide pass can be adjusted in response to specific boundary conditions, such as specific specified parameters, before, during, or after rolling, or in response to specific configurations or cross-sections of the rolled stock.

[0133] Preferably, one of the guide bodies is a stripper, particularly if it is arranged successively along the fitting line to another guide body, as already explained above. In particular, the stripper can have a stripper tip that can be removed non-destructively or can itself be removed non-destructively from the rolling stock guide. In its functional implementation as a stripper, the correspondingly designed guide rail comes into very close contact with the rolling stock or with a profile roll, so that increased wear can be expected in this regard. By means of a non-destructively replaceable stripper tip or a non-destructively replaceable stripper, corresponding setup times can be minimized and costs reduced, since complex dismantling measures are not required until a new stripper or a new stripper tip is available.

[0134] Depending on the specific design of the profile rolling mill, quick couplings, bayonet locks, snap-in connections, or sliding connections can be provided for the stripper or stripper tip, allowing for rapid replacement of the stripper or stripper tip. If necessary, the profile rolling mill can also be specifically designed to allow access to the stripper or stripper tip for replacement even when the profile rolling mill is closed, i.e., in a state not intended for maintenance purposes. This minimizes any setup times required for changing the stripper or stripper tip, especially when wear requires only the replacement of these components, without requiring any other replacement or setup work.

[0135] To enable the most reliable rolling possible, the rolling stock guide, as already explained above, can comprise at least one guide body with a surface-treated contact surface. Such a surface-treated contact surface makes it possible to adapt the contact surface to the specific rolling requirements, possibly also to the rolling of a specific rolling stock, and thus minimize, for example, wear or possible damage to the guide body or the rolling stock.

[0136] The surface treatment can, in particular, be a coating that can, for example, increase the temperature resistance of the guide body to the high temperatures experienced by the rolling stock or reduce the frictional resistance of the rolling stock. A sliding coating can also be applied as a coating, if necessary, to minimize friction effects. Alternatively or cumulatively, a suitable surface treatment can also increase the thermal resistance or mechanical resistance of the surface-treated contact surface. This can also be achieved, for example, by appropriate compaction, rolling, or alloy modifications of the respective contact surface.

[0137] In this context, it is initially assumed that any contact surface whose surface properties differ from other surfaces of the guide body is appropriately surface-treated. In particular, a corresponding surface treatment can be applied such that the contact surface exhibits lower friction and / or higher temperature stability than other surface areas of the associated guide body.

[0138] The rolling stock guide can also comprise a guide body with a convex contact surface, wherein the convex design refers to a cross-section perpendicular to the fitting line. In the present context, any contact surface is referred to as convex which, in a cross-section of the corresponding guide body perpendicular to the fitting line, has a curvature pointing towards the guide body. Such a convex design of the guide body or its contact surface can, in particular, minimize markings on the rolling stock or damage to the guide bodies. In particular, minor deviations in the position of the guide body in relation to the rolling stock, or vice versa, generally result in less damaging influences on the rolling stock or on the guide body.

[0139] In particular, the convex contact surface can be continuously curved perpendicular to the mating line, which can mean, in particular, that the contact surface has no edges or second-order transitions. In particular, the convex contact surface can then dispense with straight-line regions in the cross-section perpendicular to the mating line.

[0140] It is understood that the features of the solutions described above or in the claims may also be combined if necessary in order to be able to implement the advantages cumulatively.

[0141] 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: Figure 1 shows a schematic section through a first profile rolling mill with a first rolling stock guide along the line II in Fig. 2; Figure 2 a schematic section through the first profile rolling mill according to Figure 1 along line II-II in Fig. 1 ; Figure 3 a detailed enlargement of an alternative second rolling stock guide for the first profile rolling mill according to Figs. 1 and 2 in a similar sectional view as Fig. 2 ; Figure 4 shows a plan view of an alternative third rolling stock guide along the fitting line; and Figure 5 shows a schematic sectional view of the third rolling stock guide according to Fig.4 in a vertical section containing the fitting line; Figure 6 a schematic sectional view of a fourth rolling stock guide in a vertical section containing the fitting line similar Fig. 5 ; Figure 7 a schematic sectional view of a fifth rolling stock guide in a vertical section containing the fitting line similar Figs. 5 and 6 ; Figure 8 a schematic section through a second profile rolling mill with a sixth rolling stock guide along the line VIII-VIII in Fig. 9; Figure 9 a schematic section through the second profile rolling mill according to Figure 8 along the line IX-IX in Fig. 8 ; Figure 10 a detailed enlargement of the sixth rolling stock guide for the second profile rolling mill according to Figs. 8 and 9 in a similar sectional view as Fig. 2 , 9 and 3 ; Figure 11 shows part of an alternative seventh rolling stock guide in a section through the fitting line with a stripper adjacent to a profile roll; Figure 12 shows the arrangement according to Fig. 11 in a similar representation as Fig. 11 with the scraper positioned parallel to and away from the fitting line and the guide roller positioned towards the fitting line; Figure 13 the arrangement according to Figs. 11 and 12 in a similar representation as Figs. 11 and 12 with the scraper positioned towards the fitting line and the guide roller positioned away from the fitting line; Figure 14 shows a schematic Figures 1 and 8similar section through a third section rolling mill with an eighth rolling stock guide in a change position; and Figure 15 a schematic, the Figures 1 , 8 and 14 similar section through the third profile rolling mill with the eighth rolling stock guide in a working position.

[0142] The three in the Figures 1 and 2 , 8 and 9 as well as 14 and 15 The profile rolling mills 10 shown are similarly designed in their essential components, so they will initially be described together. It is understood that individual special features of one of the profile rolling mills 10 can also be implemented accordingly in the other profile rolling mills 10 if this appears advantageous.

[0143] The profile rolling mills 10 each have profile roller arrangements 20 which are arranged successively along a pass line 30, so that a rolled product can pass the profile roller arrangements 20 along the pass line 30 and in this way be rolled into a profile.

[0144] In concrete terms, the profile rolling mills 10 of the Figures 1 and 2 and 8 and 9 each have three profile roller arrangements 20 arranged successively along the fitting line 30, while the Figures 14 and 15 The third profile rolling mill 10 shown comprises only two such profile roller arrangements 20. It is understood that in different embodiments, additional profile roller arrangements 20 can also be arranged along the fitting line 30.

[0145] Not shown are any roller conveyors or similar feed or discharge devices through which the rolled stock can be fed to or removed from the profile rolling mill 10. However, the roller conveyors or similar feed or discharge devices are well known in the art.

[0146] The profile roller arrangements 20 are each arranged at rolling stations 21, at which profile rollers 22, forming a rolling pass, can each act on the rolling stock when it passes the respective rolling station 21.

[0147] In the Figures 1 and 2 In the profile rolling mills 10 shown in FIGS. 14 and 15, the profile rolls 22 are each designed as horizontal rolls, while the profile rolling mill 10 optionally also provides, at each of the rolling stations 21, additional profile rolls 22 (not shown) acting as vertical rolls. Such arrangements are also sufficiently known from the prior art.

[0148] In order to counteract the rolling forces, the profile rolling mills 10 comprise a rolling stand 23 for each rolling station 21 or for each profile rolling arrangement 20, wherein the rolling stand 23, depending on the specific implementation for the rolling stations 21, can have common components, as is the case in particular with the first and the second profile rolling mill 10 (see Figures 1 and 2 and 8 and 9). On the other hand, it is conceivable that each rolling station 21 can have its own and self-operating rolling stand 23, such as the third section rolling mill 10 according to Figures 14 and 15 provides.

[0149] The section rolling mills 10 are housed in a building 11, which serves, on the one hand, to stabilize the section rolling mill 10 with respect to its other components. Furthermore, the building 11 serves to protect the section rolling mill 10 and its associated structural units. If necessary, the building 11 can also accommodate or transfer rolling forces or, in particular, management personnel, for example, if the rolling stands 23 are connected to it with sufficient stability.

[0150] For each profile rolling mill 10, an input side 31 and an output side 32 can be defined, which is provided opposite the input side 31 along the pass line 30. Insofar as the profile rolling mills 10 are designed for reversing operation, the input side 31 in the present embodiments is defined by the fact that rolled stock is first fed to the profile rolling mill 10 via the input side 31. If reversing occurs, the corresponding rolled stock passes through the respective profile rolling mill 10 from the output side 32 to the input side 31. If only two passes are provided, the rolled stock would then leave the profile rolling mill 10 again at the input side 31. With an odd number of passes, which in the case of reversing also corresponds to an even number of reversals, the rolled stock leaves the respective profile rolling mill 10 at the output side 32, otherwise at the input side 31.

[0151] The profile rolling mills 10 each have a horizontal support frame 40, which, as part of the rolling stand 23 or stands 23, serves in particular to counteract the rolling forces applied by the profile rolls 22 used as horizontal rolls.

[0152] The horizontal stud frame 40 comprises a stud wall 41, which in particular provides longitudinal heads 42 and transverse heads 43 of the horizontal stud frame 40. In the embodiments according to the Figures 1 and 2 and 8 and 9, two stud walls 41, which are arranged opposite each other on both sides of the pass line 30 in the vertical direction 36, are used for all rolling stations 21, while in the embodiment according to Figures 14 and 15 individual stud walls 41 are provided for each rolling station 21.

[0153] The stud walls 41 are braced and stabilized against each other via tie rods 52, with intermediate cross members 53 maintaining the desired spacing between the stud walls 41. It is understood that the horizontal stud frame 40 and the bracing of the stud walls 41 can be suitably designed and implemented using any known construction methods, insofar as these construction methods are known for profile rolling mills 10.

[0154] Each of the frame walls 41 of a profile roller arrangement 20 can be assigned to a drive side 33, while the associated frame wall 41 located opposite in the horizontal direction 35 and arranged on the other side of the fitting line 30 can be assigned to an operating side 34. In this exemplary embodiment, drive units for the profile rollers 22 and, if applicable, other drives are connected via the drive side 33 or are connected to the units provided between the frame walls 41. The operating side 34, on the other hand, is intended in particular for maintenance purposes or for changing profile rollers and other fittings or assemblies, so that in the present exemplary embodiments, the frame wall 41 on the operating side 34 can be displaced in the horizontal direction 34 away from the fitting line 30, and in this way space can be gained in particular for any maintenance or changing activities.In contrast, the stud wall 41 on the drive side 33 can generally remain stationary, so that the connections, the mechanical connections and any supply lines do not necessarily have to be disconnected if maintenance and replacement work is to be carried out.

[0155] It is understood that in the case of differently designed profile rolling mills 10, other designs of the rolling stands 23 or of the rolling stand 23 may also be provided if this appears appropriate.

[0156] If the frame wall 41 is moved away from the fitting line 30 and from the drive side 33, this can, on the one hand, enable easier access to the assemblies provided between the frame walls 41, for example for maintenance or repair purposes, and on the other hand, this can provide installation space which enables the profile roller assemblies 20 and any rolling stock guides 60 to be moved in the horizontal direction 35 towards the operating side 35, for example in order to gain access to these assemblies from all sides or to be able to carry out changing operations. For example, a changing carriage can be used for such a shift in the horizontal direction 35, which is already sufficiently known from the prior art. In particular, however, a change can also be carried out using crane systems and similar units. It is also conceivable for the changing carriage itself to be used for a quick change of the profile rollers 22 orthe rolling stock guides 60, after being displaced in the horizontal direction 35 away from the drive side 33, is displaced further horizontally parallel to the fitting line 30 in order to be replaced by another changing carriage, which is then displaced back to the drive side 33 in order to bring any profile roller arrangements 20 and / or rolling stock guides 60 back into position with respect to the fitting line 30.

[0157] Once the maintenance, setup, or relocation activities are completed, the support wall 41 provided on the operating side 34 can be moved back toward the drive side 33 to position it so that the tie rods 52 can be re-tensioned. The corresponding profile rolling mill 10 is then ready for further rolling operations.

[0158] In order to counteract the rolling forces of the profile rolls 22 of the second profile rolling mill used as vertical rolls, Figures 8 and 9In order to be able to counteract these forces, the second profile rolling mill 10 additionally comprises a vertical stand frame 50, which comprises vertical stand halves 51 for each rolling station 21 at which vertical rolls are to be provided, which are each attached to the stand walls 41 on the drive side 33 or on the operating side 34 and are clamped to one another via the tie rods 52 and the intermediate cross members 53. The vertical stand halves 51 each carry, together with a further vertical stand half 51, which is assigned to the corresponding rolling station 21, a cross member 54, via which rolling forces of the profile rolls 22 used as vertical rolls can be directed into the vertical stand halves 51 so that these forces can be counteracted.

[0159] Such a design still allows the stud walls 41 to be separated for setup, replacement, or maintenance activities. On the other hand, such a design is already known from the prior art, although different designs of the vertical stud frame 50 are also conceivable in specific implementations.

[0160] To accommodate or meet the guides of the rolling stock guides 60, which the rolling stock guide 60 itself cannot meet directly, the section rolling mills 10 each have guide stands 90, which in the section rolling mills 10 according to Figures 1 and 2 and 8 and 9 share assemblies with the rolling stand 23 or with the rolling stands 23, or can be designed independently, as can be seen from the guide stands 90 of the third profile rolling mill 10 according to Figures 14 and 15 shown as an example.

[0161] By dividing the assemblies for the rolling stands 23 or the horizontal frame 40 and / or the vertical frame 50 with the guide stand 19, guides can be directly counteracted, whereby any remaining surplus can be directed into the building 11, in particular if such guides are caused, for example, by an interaction of the rolling stock with input-side or output-side roller conveyors or similar units.

[0162] At the third profile rolling mill 10 after Figures 14 and 15Any guides who cannot be encountered by the respective guide stands 90 will be guided into building 11, for which purpose corresponding anchorings are provided, which are sufficiently known from the prior art for rolling stands 23. The rolling stands 23 of the third section rolling mill 10 are also correspondingly anchored in building 11, so that, if necessary, guides who pass through the rolling stock from the rolling stock guides 60 to the section roll arrangements 20 can also be encountered accordingly. Alternatively, it is also conceivable to anchor the guide stands 90 of the third section rolling mill 10 directly to the rolling stands 23 of the third section rolling mill 10, whereby even with such an arrangement, anchoring the entire arrangement to building 11 then appears sensible, particularly for stability reasons.

[0163] The anchorages are preferably designed to be detachable, as is already sufficiently known from the prior art for rolling stands 23, so that setup work or the like can be carried out without further ado.

[0164] The guide stands 90 each have stud walls 91, which provide longitudinal heads 92 and transverse heads 93 of the guide stands 90. Tie rods 52 and intermediate cross members 53 provide appropriate stabilization, as is already known from the rolling stands 23. It is understood that other configurations of the guide stands 90 are also conceivable in different embodiments.

[0165] In the present embodiments, the guide stands 90 are designed to counteract both horizontal forces and vertical forces, even if the rolling stock guides 60 act only in the vertical direction 36, i.e. as a horizontal guide, since it cannot be ruled out that horizontal guide forces may also occur, which must be counteracted sensibly.

[0166] While in Figures 1 and 2 and 14 and 15, the horizontal support frame 40 is sufficiently stable due to its inherent rigidity to absorb guiding forces occurring in the horizontal direction, whereby the support walls 41 can be slightly reinforced for this purpose if necessary, the guide stands 90 of the second profile rolling mill 10 use Figures 8 and 9the vertical post and column system 50 for this purpose. It is understood that in this regard, combinations of the individual exemplary embodiments are readily conceivable, so that, for example, the guide stands provided on the input side 31 and on the output side 32 of the third section rolling mill 10 can be provided with a supplementary vertical post and column system 50. If this appears expedient in the specific application, a separate vertical post and column system 50 for the middle guide stand 90 of the third section rolling mill 10 is dispensed with, and this task is taken over by the horizontal post and column system of the latter guide stand 90 of the third section rolling mill 10. It is understood that, depending on the specific requirements, there is ultimately a degree of freedom in this regard.

[0167] In particular, it is also conceivable that in certain embodiments, guide frames are dispensed with entirely and the guides are provided as rolling fittings on assemblies which carry the profile rollers 22, for example on their chocks.

[0168] The Figures 1 and 2 The first profile rolling mill 10 shown has rolling stock guides 60 with a plurality of guide bodies 61, each of which comprises main guide directions 70 aligned in the vertical direction 36 and convex contact surfaces 78.

[0169] In this embodiment, eight of these guide bodies 61 are arranged on supports 64 via guide supports 65 aligned in the horizontal direction 35 and adjustment devices 36, which also act in the vertical direction 36, which in turn can be adjusted on a guide frame 80 in the vertical direction 36 via a further adjustment device not explained in detail.

[0170] In this way, an extremely flexible adaptability of a guide caliber 75 or guide funnel 79 provided by the guide bodies 61, but not separately numbered in these figures, is achieved. It is understood that the number of guide bodies 61 can also be varied if necessary.

[0171] The guide bodies 61 of these first rolling stock guides 60 are designed as guide rails 67 and carry strippers 68 (in Figures 1 and 2 not separately numbered), whose wiper tips are designed to be interchangeable.

[0172] The guide frame 80, in turn, is mounted via horizontal displacement means 81 and vertical displacement means 82, each adjustable in the horizontal direction 35 and vertical direction 36 with respect to the fitting line 30 or with respect to the guide stand 90 and the rolling stands 23, wherein, for receiving guides, the guide frame 80 is mounted on the one hand via a frame bearing 83 aligned in the horizontal direction 35 on intermediate supports 84 aligned in the horizontal direction 35, while these intermediate supports 84 can then be adjusted in the vertical direction 36 via the vertical displacement means 82 in order to be able to adjust the guide caliber 65 provided by the guide bodies 61 or the guide funnel(s) 79 in the vertical direction 36 accordingly.

[0173] For adjustment of the guide frame 80 in the horizontal direction 35, intermediate supports 84 aligned in the vertical direction 36 are each mounted on the stud wall 41 or 91 of the horizontal stud frame 40 or the guide frame 90 via a correspondingly aligned frame bearing 83 in the vertical direction 36, wherein these intermediate supports 84 then each carry the horizontal displacement means 81, which in turn can then act on the guide frame 80 in a horizontal direction 35.

[0174] The frame bearings 83 can be reset by means of springs 85, which are not numbered in more detail in this embodiment, when the overall arrangement is relaxed and in particular the stud walls 41 and 91 are separated from one another, so that the arrangement of intermediate supports 84, springs 85, frame bearings 83 and guide frames 80 can be removed as structural units and replaced if necessary.

[0175] It is understood that in different embodiments, the support of the guide frame 80 can also be implemented in other ways. In particular, it is not mandatory for the guide frame 80 itself to be adjustable; the displacement means 81, 82 of the guide frame 80 can also fulfill an overload function, for example.

[0176] Depending on the specific orientation, the adjustment devices 63 can be driven by electric motors, hydraulically, via linear actuators, or in some other way. In particular, however, a mechanical adjustment device 63 can also be provided if, for example, a detailed adjustment of the guide caliber 75 during rolling or inline operation is not considered necessary.

[0177] The guide bodies 61 do not necessarily have to be aligned only in linearly dependent main guide directions 70, for example, opposite one another. In particular, it is conceivable that the guide bodies 61 can be arranged in linearly independent main guide directions 70, as exemplified by the second rolling stock guide 60 according to Figure 3 is shown.

[0178] In this embodiment, a displaceable support 64 has been dispensed with and the guide bodies 61 are arranged directly on the guide frame 80, which in turn is arranged according to the first rolling stock guide 60 Figures 1 or 2 is displaceably mounted on the stud wall 91 of the guide scaffold 90 via horizontal displacement means 81, vertical displacement means 82, frame bearings 83 held by springs 85 and intermediate supports 84.

[0179] The guide bodies 61 of this embodiment each have convex contact surfaces 78, which allows for minor deviations in the contact between the guide body 61 and the rolling stock to be tolerated.

[0180] The number of guide bodies 61 can be drastically reduced if necessary, as can be seen from the third rolling stock guide 60 according to Figure 4 is shown by way of example, in which two guide bodies 61 are provided each with an opposite main guide direction 70. These guide bodies 61 also have pairs of linearly independent main guide directions 70, which point on the one hand in the horizontal direction 35 and on the other hand in the vertical direction 36.

[0181] In addition, the guide bodies 61 are mounted on the guide frame 80 via adjustment devices 63 in a displaceable manner, as has already been explained with reference to the first two rolling stock guides 60, wherein the guide frame 80 of the third rolling stock guide 60 is also provided so as to be displaceable perpendicular to the fitting line 30 in the horizontal direction 35 and the vertical direction 36.

[0182] While in the first two rolling stock guides 60, tilting of the guide bodies 61 in a plane directed perpendicular to the fitting line 30 is only possible by asymmetrically controlling the horizontal and vertical displacement means 81, 82, in the third rolling stock guide 60, the contact surface 78 or of the respective guide bodies 61 can be inclined accordingly in this plane by asymmetrically adjusting the two adjusting devices 63 of each individual guide body 61 arranged in the plane directed perpendicular to the fitting line.

[0183] In a cross section through a plane parallel to the fitting line 30 or containing the fitting line 30 through the guide bodies 61, the guide bodies 61 of the three rolling stock guides 60 are essentially constructed in the same way, as this construction is shown by way of example in Figure 5 for the third rolling stock guide 60.

[0184] The guide bodies 61 form a guide caliber 65, which initially tapers into the guide caliber 75 on the inlet and outlet sides, respectively, thus forming a specific guide funnel 79, which ends at a minimum 71, in which edge lines 76 of the guide caliber 75 formed by the guide bodies 61 run essentially parallel to the fitting line 30. By unevenly adjusting the two adjustment devices 63 of a guide body 61, which are arranged successively along the fitting line 30, the inclination of the guide body 61 can also be changed in the rectilinear region, so that the position of the minimum 71 moves accordingly and at least one of the guide funnels 79 is designed more complex.

[0185] It is also conceivable, in particular, to arrange several guide bodies 61 successively along the fitting line 30, as is particularly the case with fourth and fifth rolling stock guides (see Figures 6 and 7) is shown by way of example. In these exemplary embodiments, the guide rails 67 are composed of a plurality of sections 67A which overlap one another and are connected to one another in an articulated manner, wherein these guide bodies 61, which are arranged successively along the fitting line 30 and each form the sections 67A of a guide rail 67, can be adjusted independently of one another in terms of their angle of incidence and their distance from the fitting line 30 or perpendicular to the respective edge lines 76 and the surfaces of the guide calibers 75 in the region of the respective guide body 61.

[0186] Depending on the specific design, it is possible to influence the minimum 71 and its position along the pass line 30 in great detail. In particular, it is also conceivable, as shown by way of example Figure 7shown, to provide a central maximum 72 in the guide caliber 75 or in its edge line 76, from which then correspondingly provided turning points 73 can also result.

[0187] Depending on the specific implementation, a funnel-shaped constriction on the inlet side or outlet side of the corresponding rolling stock guide 60 can also be dispensed with if necessary by selecting the adjustments accordingly.

[0188] As shown by way of example with reference to the fifth rolling stock guide 60, a minimum 71 can be provided opposite the maximum 72, so that the guide caliber 75 runs explicitly off-center with respect to the fitting line 30.

[0189] Depending on the specific process or design, the guide bodies 61 or the individual sections 67A can be adjusted accordingly during rolling. This makes it possible, in particular, to change the position of the minima 71, the maxima 72, or the turning points 73 accordingly, and if necessary, to form and deform minima or maxima or to change their depth.

[0190] A sixth rolling stock guide is exemplary in the Figures 8 to 10 and essentially corresponds to the second rolling stock guide according to Figure 3 , so that repetitions in this regard are omitted, particularly with regard to the guide frame 80 and its displaceability. In this exemplary embodiment, however, the frame bearings 83 oriented in the vertical direction 36 are each supported on the vertical column half 51, whereby the vertical column half 51 is in any case designed to absorb forces directed in the horizontal direction 35.

[0191] Instead of the guide rails 67, the sixth rolling stock guide 60 uses guide rollers 65 as guide bodies 61, which are each mounted directly on the guide frame 80 by means of guide supports 62 and adjustment devices 63.

[0192] These guide rollers 65 also have concave contact surfaces 78 and can be individually adjusted with respect to the guide frame 80 and thus with respect to the fitting line 30, so that guide funnels 79 or guide calibers 75 can be provided relatively individually.

[0193] A rolling stock guide 60 comprising both guide rollers 65 and guide rails 67 is shown as a seventh rolling stock guide by way of example in Figures 11 to 13, wherein the arrangement of the guide rollers 65 on the guide frame 80 corresponds to the arrangement of the guide rollers 65 in the sixth rolling stock guide 60. In contrast, the guide frame 80 in the seventh rolling stock guide 60 is extended along the fitting line 30 in order to be able to support the guide rails 67 accordingly.

[0194] In the seventh rolling stock guide 60, the guide support 62 for the guide rails 67 is arranged in the guide frame 80 via an adjustment device 63, which can be displaced parallel to the fitting line. Furthermore, an adjustment device 63 is provided which can displace the guide rails 67 perpendicular to the fitting line 30 or perpendicular to an edge line 76 of the associated guide rail 67, in that this corresponding guide support 62 comprises a hydraulic cylinder-piston adjustment device 63, whereby other adjustment drives can also be provided in this regard if necessary.

[0195] Accordingly, the guide rails 67 are displaceable on these guide rails 67 perpendicular to the edge line 76 defined by them and perpendicular to the surface of the guide caliber 75. It is understood that in alternative embodiments, displaceability perpendicular to the edge line 76 and perpendicular to the fitting line 30, i.e., parallel to the surface of the guide caliber 75 within a plane perpendicular to the fitting line 30, can also be provided cumulatively or alternatively.

[0196] In this exemplary embodiment, the roller-side guide carrier 62 carries, by way of example, two guide rails 67, wherein the guide rail 67 facing a profile roller 22 is designed as a scraper 68 which is pivotally connected to the second guide rail 67 arranged successively along the fitting line 30, and a return spring 69 pretensions the scraper 68 away from the fitting line 30 or from the guide caliber 75.

[0197] To replace the wiper 68, it simply needs to be removed from the articulated connection, and the return spring 69 must also be loosened. A new wiper 68 can then be attached. Alternatively, a tip of the wiper 68, which can be replaced and attached to the rest of the body of the wiper 68, can be selected to provide an easy reaction to wear on the wiper 68.

[0198] As exemplified by Figures 12 and 13 deviating from the Figure 11 As explained, the guide rails 67 or scraper 68 can be displaced parallel to the fitting line 30, whereby, for example, the scraper 68 can be released from the profile roller 22.

[0199] Likewise, in this embodiment, the guide roller 65 can be adjusted with respect to the fitting line 30 or with a component perpendicular to the fitting line 76 in a plane perpendicular to the fitting line 30, which accordingly also enables the formation of different maxima and minima or turning points and thus enables influence on the edge line 76, the guide caliber 75 and the guide funnel 79.

[0200] At the Figures 14 and 15In the eighth rolling stock guide 60 shown as an example, which in this embodiment is provided between the two rolling stations 21 or profile roller arrangements 20, guide rollers 65 and strippers 68 with directional components perpendicular to the fitting line 30 or perpendicular to the associated edge line or perpendicular to the surface of the guide caliber 75 are arranged displaceably on supports 64 in planes aligned perpendicular to the fitting line 30, which in turn are designed to be displaceable in the vertical direction 36 with respect to the guide stand 90.

[0201] In addition, the scrapers 68 are each mounted on supports 64 together with two guide rollers 65, which in turn are mounted on the intermediate supports 64 via adjusting devices 63 in the horizontal direction 35 parallel to the fitting line 30.

[0202] In this way, the guide caliber 75 in this eighth rolling stock guide 60 can be adjusted relatively individually. In particular, it is possible, as shown in the example in Figure 8 shown that the guide caliber 75 can be designed relatively individually and provided with Minima 71 or Maxima 72.

[0203] Furthermore, the adjustability of the scrapers 68 and the associated guide rollers 65 arranged together with them on the supports 64 allows the associated assemblies to be brought close to the respective associated profile roller assembly 20 via the adjustment devices 61 acting in the horizontal direction 35, when this appears sensible or necessary. However, in particular for possible operating conditions, such as maintenance or setup work, the scrapers 68 together with the guide rollers 65 can also be removed from the associated profile roller assembly 20, which can then facilitate these operations accordingly.

[0204] It is understood that such adjustability in the horizontal direction 35 can also be used to design the length of the guide caliber 75 parallel to the fitting line 30 during rolling, if this appears necessary. For example, during reversing, the distance between the trailing scraper 68 and the associated profile roller arrangement 20 can be increased in order to relieve the load on it, for example - and this is independent of the direction of travel and the associated pass. The leading scraper can remain arranged on the associated profile roller arrangement 20 in order to exert its stripping effect. On the other hand, it is conceivable that a stripper 68 mounted on a profile roller 22 ora stripper 68 resting on a profile roller arrangement 20 is removed from it during a pass if the stripping effect of the stripper 68 is only required for the moment at which the leading end of the rolling stock leaves the respective profile roller arrangement 20, so that the stripper 68 can otherwise be protected and its wear can be minimized.

[0205] It is also conceivable that during a pass, but especially before the start of a rolling process, extreme and turning points can be formed and changed in the respective guide caliber 75 if this appears necessary or sensible. List of reference symbols:

[0206] 0Profile rolling mill 11Building 20Profile roll arrangement 21Rolling station 22Profile roll 23Rolling stand 30Pass line 31Input side 32Output side 33Drive side 34Operating side 35Horizontal direction 36Vertical direction 40Horizontal stud frame 41Stud wall of the horizontal stud frame 40 42Longitudinal head of the horizontal stud frame 40 43Cross head of the horizontal stud frame 40 50Vertical stud frame 51Vertical stud half 52Tie rod 53Intermediate cross member 54Cross member 60Rolling stock guide 61Guide body 62Guide support 63Adjustment device 64Support 65Guide roller 67Guide rail 67ASection of the guide rail 67 68Scraper 69Return spring 70Main guidance direction 71Minimum 72Maximum 73Turning point 75Guidance caliber 76Edge line 78Contact surface 79Guidance funnel 80Guide frame 81Horizontal displacement means 82Vertical displacement means 83Frame bearing 84Intermediate support 85Spring 90Guide scaffold 91Stud wall of the guide scaffold 90 92Longitudinal head of the guide scaffold 90 93Cross head of the guide scaffold 90

Claims

1. Profile rolling mill (10) comprising at least one profile roller arrangement (20) arranged along a fitting line (30) and an input side (31) and an output side (32) opposite the input side (31) with respect to the fitting line (30), wherein at least one rolling stock guide (60) is arranged on the input side and / or output side of the profile roller arrangement (20), characterized in thatthe rolling stock guide (60) (i) comprises at least one guide funnel (79) formed by at least two guide bodies (61) with linearly independent main guide directions (70), all of the guide bodies (61) forming it being adjustable; and / or (ii) comprises at least two guide bodies (61) arranged successively along the fitting line (30), which are adjustable in at least one directional component independently of one another and / or independently of a profile roll (22) of the profile rolling mill (10); and / or (iii) comprises at least one guide body (61) with a convex and / or surface-treated contact surface (78); and / or (iv) is adjustable to a guide caliber (75) whose center line and / or an edge line (76) have at least one extreme and / or turning point (71, 72, 73) adjustable parallel to the fitting line and / or at least one maximum (72) and / or at least two turning points (73).

2. Profile rolling mill (10) according to claim 1, characterized in that at least three, in particular at least four, guide bodies (61) form the guide funnel (79).

3. Profile rolling mill (10) according to claim 1 or 2, characterized in that the guide bodies (61) forming the guide funnel (79) cut into a common funnel plane aligned perpendicular to the fitting line (30).

4. Profile rolling mill (10) according to one of claims 1 to 3, characterized in that at least two, preferably at least three and in particular all, of the guide bodies (61) forming the guide funnel (79) can be adjusted independently of one another.

5. Profile rolling mill (10) according to one of claims 1 to 4, characterized in that the guide bodies (61) forming the guide funnel (79) are arranged on a common guide frame (80).

6. Profile rolling mill (10) according to one of claims 1 to 5, characterized in that the guide bodies (61) forming the guide funnel (79) comprise at least one guide roller (65).

7. Profile rolling mill (10) according to one of claims 1 to 6, characterized in that the guide bodies (61) forming the guide funnel (79) comprise at least one guide rail (67), preferably a scraper (68).

8. Profile rolling mill (10) according to one of claims 1 to 7, characterized in that the two guide bodies (61) arranged successively along the fitting line (30) can be adjusted independently of the profile rollers (22) of a rolling station (21), in particular independently of all profile rollers (22) of the profile roller arrangement (10).

9. Profile rolling mill (10) according to one of claims 1 to 8, characterized in that the directional component in which the two guide bodies (61) arranged successively along the fitting line (30) can be adjusted independently of one another is an angle of adjustment between the two guide bodies (61).

10. Profile rolling mill (10) according to one of claims 1 to 9, characterized in thatthe two guide bodies (61) arranged successively along the fitting line (30) are independently adjustable guide rails (67), one of which is preferably a wiper (68).

11. Profile rolling mill (10) according to claim 10, characterized in that the two guide rails (67) are connected to each other in an articulated manner.

12. Profile rolling mill (10) according to one of claims 1 to 11, characterized in that at least one of the two, preferably both, guide bodies (61) arranged successively along the fitting line (30) is a guide roller (65) which can be adjusted independently of the other guide body (61).

13. Profile rolling mill (10) according to one of claims 1 to 12, characterized in that at least one of the two guide bodies (61) arranged successively along the fitting line (30) can be adjusted both perpendicular to the fitting line (30) and parallel to the fitting line (30).

14. Profile rolling mill (10) according to one of claims 1 to 13, characterized in thatat least one of the two guide bodies (61) arranged successively along the fitting line (30) is a wiper (68), preferably with a wiper tip that can be removed without destruction.

15. Profile rolling mill (10) according to one of claims 1 to 14, characterized in that the surface treatment of the surface-treated contact surface (78) is a coating.

16. Profile rolling mill (10) according to one of claims 1 to 15, characterized by the convex contact surface (78) is continuously curved perpendicular to the fitting line (30).

17. Profile rolling mill (10) according to one of claims 1 to 16, characterized in that at least one extreme and / or at least one turning point (71, 72, 73) of the edge line (76) is formed by a guide body (61).

18. Profile rolling mill (10) according to one of claims 1 to 17, characterized in that at least one turning point (73) can be set with a component perpendicular to the fitting line (30).

19. Method for operating a profile rolling mill (10) comprising at least one profile roller arrangement (20) arranged along a fitting line (30) and an input side (31) and an output side (32) opposite the input side (31) with respect to the fitting line (30), wherein at least one rolling stock guide (60) is arranged on the input side and / or output side of the profile roller arrangement (20), characterized in that a guide caliber (75) is formed by the rolling stock guide (60), (i) the center line and / or an edge line (76) of which has at least one extreme and / or turning point (71, 72, 73) that can be set parallel to the fitting line and / or at least one maximum (72) and / or at least two turning points (73); and / or (ii) in the center line and / or in an edge line (76) of which a maximum (72) is formed or formed centrally perpendicular to the fitting line (30) 20. Method according to claim 19, characterized in thatthe maximum (72) is formed or reshaped during rolling.

21. Method according to claim 19 or 20, characterized in that a minimum (71) is formed or formed in a further edge line (76) opposite the maximum (72) of the edge line (76).

22. Method according to one of claims 19 to 21, characterized in that at least one extreme and / or turning point (71, 72, 73) is positioned perpendicular to the fitting line (30).

23. Method according to one of claims 19 to 22, characterized in that the positioning of the extreme and / or turning points (71, 72, 73) and / or the shaping takes place depending on defined specification parameters.

Images