Torsion guide, guide device and corresponding method

Abstract

The twist guide (10) comprises a support (11) to which are associated at least two twist rollers (12, 13) rotatable about respective parallel rotation axes (T1, T2) and spaced apart with respect to one another at least in an adjustment direction (B) perpendicular to the rotation axes (T1, T2) and arranged on respective support elements (17, 18).

Description

[Technical Field]

[0001] SUMMARY OF THE INVENTION The embodiments described herein relate to twist guides that can be used in rolling long metal products to guide and position the metal products as they exit the rolling stand.

[0002] In particular, the present invention relates to a torsion guide suitable for correcting the angular positioning of elongated metal products having circular, oval, square, or polygonal cross sections.

[0003] The invention also relates to a guiding device in which the torsion guide is used, and to a corresponding guiding method. [Background technology]

[0004] The rolling of elongated metal products with a circular cross section, such as bars, circular strips, rods, wires or other similar products, is known, which provides a gradual reduction in the thickness of these metal products by means of cylinders or rollers of a rolling stand positioned successively along the rolling axis.

[0005] It is also known that when the stands are arranged in sequence on a horizontal axis, the elongated metal product exiting the rolling stands can have an elliptical cross section defined by major and minor axes that are offset by 90°. At exit from the rolling stand, the metal product is positioned with its minor axis perpendicular to the axis of rotation of the rollers or cylinders of the rolling stand.

[0006] Therefore, in order to accurately roll the metal product and obtain the desired thickness reduction and expected elongation, it is necessary to twist the metal product at the exit from the rolling stand before the entrance to the next rolling stand. Typically, the total twist required is about 90°, with the twist axis coinciding with the rolling axis. In this way, the metal product enters the next rolling stand with its main axis perpendicular to the axis of rotation of the cylinder or roller.

[0007] To obtain this twist, it is known to use twist guides which are inserted into the rolling stand.

[0008] Known twist guides generally comprise a pair of conical or frustoconical twist rollers associated with a support and having axes of rotation parallel to each other and belonging to a common plane perpendicular to the rolling axis.

[0009] The twist rollers are normally idle and are kept in constant contact with the rolled metal product which is subjected to rotational motion by friction.

[0010] The two twist rollers are arranged to converge in opposite directions. Furthermore, they usually overlap in a direction perpendicular to the rolling axis and their rotation axis, and are spaced apart in a direction parallel to their rotation axis. For example, in the case of a rolling train with a horizontal axis, the two twist rollers overlap in the vertical direction and are spaced apart in the horizontal direction.

[0011] Thus, a gap is defined between the two twist rollers through which the metal product passes, contacting the twist rollers at their conical portions and imparting a first twist to the metal product. This first twist is discernible in the difference in the inclination of the cross section of the metal product between the upstream and downstream sides of the twist guide, and is a function of the relative positioning of the twist rollers, particularly the distance between them in the direction of overlap.

[0012] The total twist of a metal product can be identified by the difference in the inclination of its cross section between the upstream twist guide and the entrance to the next rolling stand. The total twist depends on the degree of the first twist transmitted by the twist roller, the pitch between two successive rolling stands, and the position of the twist guide between the two stands.

[0013] Furthermore, Chinese Patent No. 209663975(U) and Application Publication No. S55177908(U20) are known, which relate to a rolling device comprising two rollers pivotally mounted on respective movable support elements.

[0014] One drawback of the torsion guides known in the prior art is that the mutual positioning of the torsion rollers is set manually by one or more operators intervening directly in the guide. In practice, it is known that the operator properly spaces the torsion rollers taking into account the gaps provided in the rolling table and the distance between the rolling stands.

[0015] This drawback is particularly disadvantageous since the operator or team of operators needs to intervene rapidly at each torsion guide along the rolling train. This can be disadvantageous both from an economic point of view and in terms of operator safety.

[0016] Furthermore, it is also known that the long-term contact between the metal product and the torsion rollers causes their progressive wear, with the result that the exact mutual positioning is lost. This drawback is particularly disadvantageous and can lead to an inaccurate positioning of the metal product and thus to a low quality of the final product or to jamming during rolling.

[0017] To overcome this, known torsion guides require more frequent and cumbersome manual repositioning of the torsion rollers during operation, which entails further drawbacks in terms of economic aspects and operator safety.

[0018] Therefore, there is a need to complete a torsion guide that can overcome at least one of the drawbacks of the prior art.

[0019] In particular, one object of the present invention is to provide a torsion guide that reduces or eliminates manual intervention by the operator for setting and adjusting the torsion guide.

[0020] Yet another object is to complete a rolling method and plant that make it possible to guarantee a high quality of the rolled metal product and reduce the risk of maintenance intervention and jamming.

[0021] The Applicant has devised, tested and embodied the present invention to overcome the drawbacks of the prior art and to obtain these and other objects and advantages. Summary of the Invention

[0022] The invention is set forth and characterized in the independent claims, while the dependent claims describe other features of the invention or variants to the main inventive idea.

[0023] In accordance with the above objectives, a torsion guide is described that overcomes the limitations of the state of the art and eliminates the deficiencies present therein.

[0024] The twist guide of the present invention comprises a support having an inlet and an outlet for a metal product aligned along a rolling axis, and at least two twist rollers rotatable about respective axes of rotation parallel to each other and perpendicular to the rolling axis are associated with the support.

[0025] The twist rollers overlap and are spaced apart from one another in an adjustment direction perpendicular to their rotation axis and rolling axis.

[0026] According to one aspect of the invention, the torsion rollers are pivotally mounted on respective support elements which are movable at least parallel to the adjustment axis and are mechanically connected to at least one motor means. Furthermore, according to one aspect of the invention, the torsion guide comprises a control and management unit and one or more means for detecting the relative positions of the torsion rollers at least in a direction parallel to the adjustment axis. The detection means are configured to transmit data correlating to the positions of the torsion rollers to the control and management unit in order to enable the relative positions of the torsion rollers at least in a direction parallel to the adjustment axis to be adjusted.

[0027] In a preferred embodiment, the motor means is mechanically connected to both support elements for moving them in a coordinated manner, and further corresponds to the mutual movement of the torsion rollers towards / away from each other along with the movement of the support elements.

[0028] In a preferred embodiment, the twist guide comprises a support provided with an inlet and an outlet for the metal products aligned along the rolling axis, the support elements being arranged symmetrically with respect to the rolling axis.

[0029] In a preferred embodiment, the control and management unit is configured to command the function of at least one motor means as a function of data correlating to the position of at least the torsion rollers in order to adjust their mutual position at least in a direction parallel to the adjustment axis.

[0030] In a preferred embodiment, the support elements each comprise a disk rotatable about a respective axis of rotation, the respective torsion roller being eccentrically pivotally mounted by a rotary support.

[0031] In a preferred embodiment, the discs are integral with respective gear wheels which engage a common headless screw element which can be driven by at least one motor means, and the detection means comprise transducers of the angular position of the discs.

[0032] The invention also relates to a guide device for rolling stands arranged in sequence along a rolling axis, comprising at least one twist guide according to the invention and a rolling guide arranged downstream of the twist guide along the rolling axis, the rolling guide comprising guide rollers and means for detecting the forces exerted by metal products being transported on the guide rollers, and adapted to transmit data relating to the forces exerted on the guide rollers to a control and management unit, whereby adjustment of the mutual positions of the twist rollers is subject to the force detection by the force detection means.

[0033] The invention also relates to a rolling plant comprising at least two rolling stands arranged in succession along a rolling axis, the rolling plant also comprising at least one twist guide according to the invention installed between the two rolling stands of the plant.

[0034] Additionally, a rolling guide can be arranged in the plant, installed downstream of the twist guide and upstream of one of the rolling stands. The rolling guide comprises at least two guide rollers associated with one or more means for detecting the forces exerted thereon by the metal product during use. These detection means are configured to transmit data relating to the forces exerted on the guide rollers to a control and management unit. The control and management unit can command the motor means of the twist guide as a function of the data received from the detection means of the rolling guide.

[0035] The present invention also provides a rolling method, comprising the steps of: - reducing the thickness of the metal product by a first rolling stand; - transmitting a first twist to the metal product at the outlet from the first rolling stand by means of a twist guide comprising at least two twist rollers pivotally mounted on respective support elements movable at least parallel to the adjustment axis and mechanically connected with at least one motor means, a control and management unit, and one or more means for detecting the position of the twist rollers at least in a direction parallel to the adjustment axis, the means being configured to transmit data correlating to the position of the twist rollers to the control and management unit; - detecting wear of the torsion roller directly or indirectly; - automatically adjusting the mutual position of the torsion rollers, at least in a direction parallel to the adjustment axis, based on detection of wear of the torsion rollers.

[0036] In a preferred embodiment, detection of wear of the twist roller occurs by a control and management unit which analyzes the data transmitted by the twist roller to detect the force exerted by the metal product on one or more guide rollers of a rolling guide located downstream of the twist guide.

[0037] In a preferred embodiment, the automatic adjustment of the mutual positions of the twist rollers occurs by moving them by motor means commanded by a control unit. [Brief explanation of the drawings]

[0038] These and other aspects, features and advantages of the present invention will become apparent from the following description of some embodiments, given by way of non-limiting example with reference to the accompanying drawings, in which:

Figure 1

Figure 2

Figure 3

[0039] For ease of understanding, the same reference numbers have been used, where possible, in the figures to identify identical common elements, it being understood that elements and features of one embodiment may be conveniently combined or incorporated in other embodiments without further description. DETAILED DESCRIPTION OF THE INVENTION

[0040] Reference will now be made in detail to possible embodiments of the invention, one or more examples of which are illustrated by way of non-limiting example in the accompanying drawings. The phraseology and terminology used herein is also for the purpose of providing non-limiting examples.

[0041] With reference to the accompanying drawings, the number 10 indicates a twist guide according to some embodiments of the present invention. This twist guide 10 can be used in a rolling plant 50 comprising two or more rolling stands 51, 52 located successively along a rolling axis X.

[0042] In use, the twist guide 10 receives the metal product P at its inlet exiting the first rolling stand 51 to impart a first twist that enables the desired total twist to be naturally reached at the inlet of the next rolling stand 52.

[0043] Twisting the metal product P at the exit from the rolling stand 51 and before entering the next rolling stand 52 is particularly important since, after rolling, the metal product P has an elliptical cross section characterized by its major and minor axes being offset by approximately 90° relative to one another. The twist guide 10 therefore preferably makes it possible to position the metal product P with its major axis perpendicular to the axis of rotation of the rollers or cylinders of the next rolling stand 52.

[0044] By way of example only, in the case of two successive rolling stands 51, 52 spaced 3 metres apart, the twist guide 10 can be installed between them at 1 / 6 of such distance to impart a first twist of about 15° to the metal product P. Over the remaining 5 / 6 of the distance, the metal product P will naturally position itself until it reaches a total twist of about 90° at the entrance to the second rolling stand 52.

[0045] According to some embodiments, the twist guide 10 comprises a support 11 with an inlet 11a and an outlet 11b for the metal product P aligned along a rolling axis X.

[0046] The two twist rollers 12, 13 are preferably associated with a support 11 having a slope profile S that gives the rollers 12, 13 an at least partially conical shape. The twist rollers 12, 13 are arranged to converge or conically shape in substantially opposite directions. In other words, the direction of the radial contraction of one twist roller 12 is substantially opposite to the direction of the radial contraction of the other twist roller 13.

[0047] Alternatively, the twist rollers 12, 13 may be cylindrical and suitably arranged to be inclined, for example by their respective support heads, so as to impart the desired first twist to the metal product P contacting them in use.

[0048] The torsion rollers 12,13 are rotatable about respective axes of rotation T1,T2 and are associated with respective movable support elements 17,18.

[0049] In some embodiments, the twist rollers 12, 13 are pivotally mounted on respective rotary supports 14, 15 that define their rotation axes T1, T2, and each rotary support 14, 15 can be arranged on a respective support element 17, 18.

[0050] According to some embodiments, the rotation axes T1, T2 of the twist rollers 12, 13 are substantially parallel and lie in a common plane A perpendicular to the rolling axis X.

[0051] The two twist rollers 12, 13 can overlap and be spaced apart in an adjustment direction B perpendicular to the rotation axes T1, T2 and the rolling axis X.

[0052] Furthermore, the twist rollers 12, 13 can also be spaced apart from one another in a direction parallel to the rotation axes T1, T2. This configuration makes it possible to define a passage gap 16 for the metal products P between the twist rollers 12, 13.

[0053] In some embodiments, at least one torsion roller 12 , 13 is movable relative to the other in an adjustment direction B to modify the size of the passage gap 16 .

[0054] According to one aspect of the present invention, the torsion guide 10 comprises at least one motor means 19 mechanically connected to at least one of the support elements 17, 18 for selectively moving the same.

[0055] In some embodiments, the movement of the support elements 17, 18 corresponds to a translation of the respective torsion roller 12, 13 at least in a direction parallel to the adjustment direction B.

[0056] According to a preferred embodiment, the motor means 19 are mechanically connected so as to be able to selectively and coordinately move both support elements 17, 18. In this case, the movement of the support elements 17, 18 corresponds to a translation of the torsion rollers 12, 13 at least in a direction parallel to the adjustment direction B. Furthermore, the degree of this translation may be the same for each torsion roller 12, 13, but determines in an opposite sense the mutual movement of the torsion rollers 12, 13 towards / away from each other.

[0057] The twist guide 10 may also comprise one or more means 22 for detecting the mutual position of the twist rollers 12, 13. These detection means 22 detect, for example, directly or indirectly, the relative or absolute position of the twist rollers 12, 13 with respect to a known point on the twist guide 10. In particular, the detection means 22 are configured to detect the mutual position of the twist rollers 12, 13 at least in a direction parallel to the adjustment direction B.

[0058] In some embodiments, the detection means 22 are associated directly with the torsion rollers 12, 13. In other embodiments, the detection means 22 are associated with the rotary supports 14, 15. In further embodiments, the detection means 22 are associated with the support elements 17, 18.

[0059] The detection means 22 can be arranged to transmit data relating to the position of the twist rollers 12 , 13 to the control and management unit 58 .

[0060] The control and management unit 58 may be configured to analyze data received from the detection means 22 and to manage the operation of the at least one motor means 19 based on such data. In particular, the control and management unit 58 may drive the motor means 19 to move the support elements 17, 18 in order to position the torsion rollers 12, 13 at a desired distance from each other along the adjustment axis B.

[0061] In this particular case, each support element 17, 18 comprises a disc 20, 21 rotatable about an axis of rotation D1, D2 parallel to the axes of rotation T1, T2 of the torsion rollers. On each disc 20, 21 is arranged eccentrically a respective rotary support 14, 15 to which a torsion roller 12, 13 is pivotally mounted. Associated with each disc 20, 21 is a gear 24, 25 which engages with a common grub screw 23 inserted between the discs 20, 21 and movable by motor means 19. This arrangement makes it possible to rotate the discs 20, 21 in opposite directions, thereby rotating the grub screw 23.

[0062] Due to the eccentric arrangement of the rotary supports 14, 15 on the discs 20, 21, the rotation of the discs 20, 21 is accompanied by a corresponding translation of the torsion rollers 12, 13 at least in a direction parallel to the adjustment axis B.

[0063] The eccentricity E can be identified as the distance between the axis of rotation T1, T2 of the torsion roller 12, 13 and the axis of rotation D1, D2 of the disk 20, 21 on which it is arranged.

[0064] In some embodiments, the eccentricity E is substantially the same for both support elements 17, 18. Furthermore, the support elements 17, 18 and the rotary supports 14, 15 can be arranged symmetrically with respect to the rolling axis X (FIG. 2). This makes it possible to move the torsion rollers 12, 13 towards / away from each other in the adjustment direction B by means of motor means 19, while always remaining equidistant from the rolling axis X.

[0065] In some embodiments, the detection means 22 may comprise a transducer of the angular position of the disks 20, 21. For example, an angular position transducer may be associated with each disk 20, 21 that is configured to transmit data relating to the angular position of the disk 20, 21 with which it is associated to the control and management unit 58. Advantageously, in this way, the control and management unit 58 can command the motor means 19 based on the data transmitted by the transducer of the angular position of the disks 20, 21.

[0066] The control and management unit 58 may also be configured to receive inputs from an operator and to command the motor means 19 as a function of such inputs. In particular, the control and management unit 58 may comprise a user interface comprising any known communication device, such as, for example, keys, a keyboard, a touch screen device, and / or a device for communication with a computer network.

[0067] By way of example only, an operator may communicate to the control and management unit 58 the desired distance between the twist rollers 12, 13 along the adjustment axis B. Then, as a function of the input received and data regarding the position of the twist rollers 12, 13, the control and management unit 58 may drive the motor means 19 to position the twist rollers 12, 13 as desired by the operator.

[0068] Advantageously, this configuration limits operator intervention with the twist guide 10, making its setting faster and more effective. This is particularly advantageous in rolling trains having, for example, 20 or more different rolling passes, where a twist guide 10 is installed for each pass.

[0069] With reference to FIG. 3, the present invention also relates to a rolling plant 50 comprising at least two rolling stands 51, 52 arranged in succession along a rolling axis X and a twist guide 10 according to the invention inserted between the two rolling stands 51, 52.

[0070] In a preferred embodiment, the rolling plant 50 may also comprise a rolling guide 53 inserted downstream of the twist guide 10 between the two rolling stands 51, 52. The rolling guide 53 is preferably installed corresponding to the entrance of the rolling stand 52 downstream of the twist guide 10. The rolling guide 53 holds the metal product in the correct working position in accordance with the gap defined between the rollers or cylinders of the rolling stand 52 downstream of it.

[0071] The rolling guide 53 is attached to the support 56 and includes at least a pair of guide rollers 54 having a rotation axis orthogonal to the rolling axis X.

[0072] The guide rollers 54 are normally in an idle state and are always kept in contact with the metal product that receives rotational movement by friction. The rolling guide 53 also includes one or more means 57 for detecting the force applied to the guide rollers 54 by the metal product P during use. For example, each guide roller 54 of the rolling guide 53 can be associated with a respective force detection means 57. These detection means 57 can be of any known type and can be directly associated with each guide roller 54 or, alternatively, with an element connected to the guide roller 54, such as a support arm (Figure 3).

[0073] The force detection means 57 is also configured to transmit the detected force value to a control and management unit 58 that commands at least one motor means 19 of the guide 10. Twist

[0074] In some embodiments, the control and management unit 58 is configured to analyze the data received from the detection means 57 of the rolling guide 53 and, as a function thereof, Twist command the motor means 19 of the guide 10.

[0075] In practice, the value of the force applied to the guide rollers 54 of the rolling guide 53 by the metal product P can vary as a function of the wear of the rollers 12, 13 of the guide 10. In other words, the worn Twist rollers 12, 13 of the guide 10 do not give the metal product P a correct first rolling and enter the next rolling guide 53 with an inaccurate positioning, for example, by pressing one guide roller 54 more than the other. Twist Twist

[0076] ​​​By way of example only, if the control and management unit 58 detects a significant difference in the force applied by the metal product P to one guide roller 54 compared to the other, it can move the twist rollers 12, 13 towards / away from each other until the value of the force applied to the guide rollers 54 falls within a preset tolerance range.

[0077] The rolling plant 50 of the present invention therefore makes it possible to automatically adjust the mutual positioning of the twist rollers 12, 13 of the twist guide 10, even while the rolling plant 50 is in use. Advantageously, the rolling plant 50 of the present invention makes it possible to prevent jams, breakdowns and defects in the final product and to limit the frequent, burdensome and invasive maintenance associated with wear of the twist rollers 12, 13.

[0078] The present invention also provides a rolling method, comprising the steps of: - reducing the thickness of the metal product P by means of a first rolling stand 51; - transmitting a first twist to the metal product P at the exit from the first rolling stand 51 by means of the two twist rollers 12, 13 of the twist guide 10; - detecting wear of the torsion rollers 12, 13 directly or indirectly; and a method for providing an automatic adjustment of the mutual positioning of the twist rollers 12, 13 of the twist guide 10 based on the detected wear.

[0079] In a preferred embodiment of the method, detection of wear of the twist rollers 12, 13 can occur by a control and management unit 58 analyzing data transmitted by means 57 for detecting the force exerted by the metal product P on one or more guide rollers (54) of the rolling guide 53 located downstream of the twist guide 10.

[0080] Furthermore, in other embodiments, adjustment of the reciprocating positioning of the twist rollers 12, 13 of the twist guide 10 can occur by the control and management unit 58 selectively driving the motor means 19 associated with the twist rollers 12, 13. In particular, driving of the motor means 19 can occur as a function of data transmitted by the detection means 57.

[0081] It will be apparent that modifications and / or additions of parts or steps may be made to the twist guide 10, rolling plant 50, and rolling method described hereinabove without departing from the field and scope of the present invention as defined by the claims.

[0082] In the claims that follow, the sole purpose of references in parentheses is to facilitate reading and they should not be considered as a limiting factor with regard to the field of protection claimed in a particular claim.

Claims

1. A guiding device for rolling stands arranged in sequence along a rolling axis (X), said guiding device comprising at least one torsion guide (10) that can be used in a rolling mill (50) comprising at least two rolling stands (51, 52), and a rolling guide (53) arranged downstream of said torsion guide (10) along said rolling axis (X). Said torsion guide (10) comprises a support (11) associated with at least two torsion rollers (12, 13) rotatable about respective rotation axes (T1, T2) parallel to each other and perpendicular to said rolling axis (X), said torsion rollers (12, 13) overlap each other when viewed from an adjustment direction (B) perpendicular to said rotation axes (T1, T2) and said rolling axis (X), and are spaced apart from each other in said adjustment direction (B), said torsion rollers (12, 13) are pivotally attached to respective support elements (17, 18), said support elements (17, 18) are movable in said adjustment direction (B) and are mechanically connected to at least one motor means (19), a control and management unit (58), and one or more detection means (22) for detecting at least the relative position of said torsion rollers (12, 13) in said adjustment direction (B). Said detection means (22) is configured to transmit data correlated with the relative position of said torsion rollers (12, 13) to said control and management unit (58) in order to enable adjustment of at least the relative position of said torsion rollers (12, 13) in said adjustment direction (B). Said rolling guide (53) comprises at least two guide rollers (54), and force detection means (57) for detecting the force applied by a metal product (P) being transported over said at least two guide rollers (54). Said force detection means (57) for detecting the force applied by a metal product (P) being transported over said at least two guide rollers (54) is configured to transmit data regarding the force applied to said at least two guide rollers (54) to said control and management unit (58), whereby the adjustment of the relative position of said torsion rollers (12, 13) follows the detection of said force by said force detection means (57). A guiding device characterized thereby.

2. 2. The guide device according to claim 1, wherein said at least one motor means (19) is mechanically connected to said support elements (17, 18) for selectively and cooperatively moving them, said movement of said support elements (17, 18) corresponding to the mutual movement of said torsion rollers (12, 13) towards / away from each other.

3. A guide device as described in claim 1 or 2, characterized in that the support (11) has an inlet (11a) and an outlet (11b) for the metal product (P) aligned along the rolling axis (X), and the support elements (17, 18) are arranged symmetrically with respect to the rolling axis (X).

4. 4. The guiding device according to claim 1, wherein the control and management unit (58) is configured to command the function of the at least one motor means (19) as a function of the data correlating to the mutual position of at least the torsion rollers (12, 13) in order to adjust the mutual position at least in the adjustment direction (B).

5. 5. The guiding device according to claim 1, wherein the support elements (17, 18) are each rotatable about a respective axis of rotation (D1, D2), and each torsion roller (12, 13) comprises a disk (20, 21) pivotally mounted eccentrically by a rotary support (14, 15).

6. 6. A guiding device according to claim 5, characterized in that the discs (20, 21) are integral with respective gears (24, 25) which engage a common headless screw element (23) which can be driven by the at least one motor means (19), and the detection means (22) comprise transducers of the angular position of the discs (20, 21).

7. A rolling plant (50) comprising at least two horizontal axis rolling stands (51, 52) arranged in succession along a rolling axis (X), also comprising at least one twist guide (10) installed between said at least two horizontal axis rolling stands (51, 52), said twist guide (10) comprising: a support (11) associated with at least two twist rollers (12, 13) rotatable about respective rotation axes (T1, T2) parallel to each other and perpendicular to said rolling axis (X); The torsion rollers (12, 13) overlap each other when viewed from the adjustment direction (B) perpendicular to the rotation axes (T1, T2) and the rolling axis (X), and are separated from each other in the adjustment direction (B). The torsion rollers (12, 13) are pivotally attached to respective support elements (17, 18). The support elements (17, 18) are movable in the adjustment direction (B) and are mechanically connected to at least one motor means (19). a control and management unit (58); one or more detection means (22) for detecting at least the mutual position of the torsion rollers (12, 13) in the adjustment direction (B); The detection means (22) is configured to transmit data correlated with the mutual position of the torsion rollers (12, 13) to the control and management unit (58) in order to enable adjustment of at least the mutual position of the torsion rollers (12, 13) in the adjustment direction (B). The rolling plant (50) further comprises at least one rolling guide (53) installed downstream of the torsion guide (10) and upstream of one of the horizontal axis rolling stands (51, 52). The rolling guide (53) comprises at least two guide rollers (54); one or more force detection means (57) for detecting the force applied to the at least two guide rollers (54) by the metal product (P) during use; The force detection means (57) is configured to transmit data regarding the force applied to the at least two guide rollers (54) to the control and management unit (58).

8. The control and management unit (58) is also configured to command the motor means (19) of the torsion guide (10) based on the data received from the force detection means (57) of the rolling guide (53) in order to adjust at least the mutual position of the torsion rollers (12, 13) in the adjustment direction (B). The rolling plant according to claim 7, characterized in that

9. A rolling method for rolling a metal product (P) along a rolling axis (X), comprising - reducing the thickness of the metal product (P) by a first rolling stand (51); - At least two skew rollers (12, 13) rotatable about respective rotation axes (T1, T2) that are parallel to each other and perpendicular to the rolling axis (X), wherein at least one of the skew rollers (12, 13) is pivotally attached to respective support elements (17, 18), and the support elements (17, 18) are movable in an adjustment direction (B) perpendicular to the rotation axes (T1, T2) and the rolling axis (X), and are mechanically connected to at least one motor means (19); at least two skew rollers (12, 13); a control and management unit (58); and one or more detection means (22) for detecting the relative position of the skew rollers (12, 13) at least in the adjustment direction (B), the detection means (22) being configured to transmit data correlated with the relative position of the skew rollers (12, 13) to the control and management unit (58). By means of the skew guide (10), transmitting a first skew to the metal product (P) at the outlet from the first rolling stand (51). - Detecting the wear of the skew rollers (12, 13) directly or indirectly. - Providing automatic adjustment of the relative position of the skew rollers (12, 13) at least in the adjustment direction (B) based on the detection of the wear of the skew rollers (12, 13). The detection of the wear of the skew rollers (12, 13) occurs by the control and management unit (58) analyzing data transmitted by force detection means (57) for detecting the force applied to one or more guide rollers (54) of a rolling guide (53) located downstream of the skew guide (10) by the metal product (P). A rolling method.

10. The automatic adjustment of the relative position of the skew rollers (12, 13) occurs by moving them by at least one motor means (19) commanded by the control and management unit (58). The rolling method according to claim 9, characterized in that.

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