JP2021109239A - Improved adaptation of roll model - Google Patents

Abstract

To provide means for optimizing a roll model capable of specifying temperature and a diameter of a roll in determination of a location when viewed in a direction of a roll shaft.SOLUTION: A storage device for two rolls of the same type is a component part of a roll stand or can be positioned relative to the roll stand so that the rolls can be transferred from the roll stand into the storage device. The storage device has a measuring system and can detect pieces of temperature and/or diameters of the rolls at predefined detection positions, as viewed in a direction of roll axes. After transmission to an automation unit that controls the roll stand, the unit can adapt a roll model. The pieces of temperature and/or the diameters of the rolls are repeatedly determined at predefined determination positions, as viewed in the direction of the roll axes, by using the roll model and by using operation data of the roll stand for the rolls of the same type.SELECTED DRAWING: Figure 7

Description

The present invention begins with a containment device for two rolls of the same type in a roll stand, which can be a component of the roll stand or transfer rolls from the roll stand to the containment device. It can be positioned relative to the roll stand in such a way that it can, and vice versa.

The present invention further begins with a method of operating a roll stand, where
-Flat rolled stock passing through the roll stand is rolled between two rolls of the same type in the roll stand.
− The automation unit that controls the roll stand utilizes a roll model that uses roll stand motion data for the same type of roll, at least in a predetermined specific position when viewed in the direction of the roll axis. The temperature and / or diameter of the roll is repeatedly identified, and the activation of the roll stand function is identified based on the identified temperature and / or diameter, so that the rolling gap of the roll stand is set as much as possible. Set during rolling of flat rolling stock according to
-The same type of roll is occasionally removed from the roll stand and transferred to a roll exchange trolley.

During rolling of metal flat rolled stock, rolling gaps are usually calculated in the context of "level-2" automation. A complex model is used to calculate the rolling gap, which includes, for example, roll setting, roll bending, roll flattening, roll warpage, roll wear, roll temperature, rolling stock temperature, and others. Factors are taken into consideration. Some of the listed variables are specified as their respective characteristics across the width of the roll barrel. So, for example, the higher the temperature of the roll at each location, the thicker the roll will be locally (the term "local" refers to the location when viewed in the direction of the roll axis). Conversely, the greater the wear or wear of the roll at each location, the thinner the roll will be locally.

The smaller the rolling gap, the greater the absolute accuracy with which the rolling gap must be calculated. For example, in the case of a rolling gap of 3 cm, an accuracy of 20 μm or 50 μm can be perfectly acceptable. In contrast, for example with a rolling gap of 1.2 mm, this kind of accuracy is generally no longer acceptable.

As already mentioned, the rolling gap is affected, among other things, by the local temperature of the roll. In addition, the rolling gap is also affected by the wear that the roll receives during operation. In addition, the temperature of the material of the flat rolled stock also depends on the temperature of the roll, especially during processing, within certain limits. The temperature of the rolling stock is, for example, an important criterion for the accurate identification of rolling forces. This applies to both hot and cold rolling.

Neither the temperature or wear or wear of the rolls during machining can be measured directly during rolling. A roll model is used for this reason, and by utilizing the role model, the operating parameters of the roll stand, which can be measured in other ways, are used, and with the help of the model, of the roll being machined. The temperature and wear of the roll during machining can be identified. A similar approach to the procedure may be adopted for other roll pairs on the roll stand, eg, placed on a 4-high stand support roll or between the support roll and the roll being machined, 6- It may be used for the intermediate roll of the high stand.

The models used to model roll and rolling gaps are error prone. Therefore, one of ordinary skill in the art is to optimize the model. This applies, among other things, to role models.

Patent Document 1 discloses a method capable of specifying both the temperature of the roll and the wear of the roll in the case of the roll of the roll stand. Identification is done by determining the location when viewed in the direction of the roll axis.

Patent Document 2 and Patent Document 3 disclose a procedure capable of exchanging a rolling roll during processing of a roll stand while a flat rolled stock passes through the roll stand.

International Patent Publication No. 2012/02526 Pamphlet International Patent Publication No. 2017/144227 Pamphlet International Patent Publication No. 2011/1245885 Pamphlet

An object of the present invention is to optimize a roll model in a simple and reliable manner, from which the temperature of the roll and its wear, as well as its diameter, can be identified from the determination of the location when viewed in the direction of the roll axis. Is to provide the feasibility that can be done.

This object is achieved by utilizing the containment device having the characteristics of claim 1. The advantageous improvement of the containment device forms the subject of the dependent claims of claims 2-8.

According to the present invention, the type of containment device described at the outset has at least one measuring system that utilizes it at at least a predetermined detection position when viewed in the direction of the roll axis. It is configured so that the temperature and / or diameter of the rolls can be detected individually and independently of each other.

This allows the actual temperature and / or actual diameter of the rolls to be detected by measurement, thus allowing them to be compared with the corresponding values identified with the help of the model. It also makes it possible to adapt the role model based on this comparison.

As already mentioned, the mere exception is that the containment device can be a component of the roll stand. However, this configuration is generally only appropriate in specific embodiments. However, in general, the containment device is designed as a roll exchange carriage. In such cases, among other things, it is possible to ensure in a simple form that the measuring system is not exposed to the rough movements of the roll stand that occur when rolling flat rolled stock.

For each roll, the measuring system has a plurality of measuring devices whose location is fixed with respect to the main body of the storage device, whereby each case when viewed in the direction of the roll axis using the measuring device. Allows detection of the temperature and / or diameter of each roll at one of the pre-defined detection positions in. In one such embodiment, a measuring device capable of detecting the temperature and / or diameter of each roll at each position is viewed in the direction of the roll axis, eg, every 10 cm, or every 20 cm. Can be provided.

As an alternative, for each roll, the measuring system has a plurality of measuring devices that are movable in the direction of the roll axis with respect to the body of the containment device, thereby utilizing the measuring device in the direction of the roll axis. Allows detection of the temperature and / or diameter of each roll within each subsection containing at least one of the predetermined detection positions in each case as seen in. For example, the measuring device may be movable left and right by 5 cm, 8 cm, 12 cm or 15 cm in each case from the center position of each measuring device when viewed in the direction of the roll axis. In this case, the temperature and / or diameter of each roll can be detected within each sub-region of 10 cm, 16 cm, 24 cm or 30 cm utilizing one of the measuring devices in each case. As before, the numbers mentioned are just examples. Depending on the size of the sub-regions and the deviation between them, for example 10 cm or 20 cm, the sub-regions may overlap each other or be separated from each other.

Alternatively, for each roll, the measuring system has a single measuring device that utilizes each at at least all of the pre-defined detection positions when viewed in the direction of the roll axis. The temperature and / or diameter of the roll can be detected. This embodiment has the advantage that it requires only a minimum number of measuring devices.

In the latter case, two alternative embodiments are also possible here.

On the other hand, the measuring device is placed on the body of the containment device in such a way that it is movable when viewed in the direction of the roll axis, thereby moving the measuring device over the entire effective barrel length of the roll. to enable. In this case, the roll is first placed in the body of the containment device. The measuring device is then moved along the roll. Such movements may be repeatedly interrupted for individual measurement processes, during which roll temperature and / or diameter is detected.

The measuring device, on the other hand, was secured on the body of the containment device in such a way that each roll was moved past the measuring device during transfer from the roll stand to the roll exchange carriage and vice versa. It can also be placed in place. This embodiment does not require any other moving parts other than the parts that must be present in either case to transfer the rolls from the roll stand to the roll exchange carriage and vice versa. , Especially simple. More specifically, this embodiment can be further implemented not only on the roll exchange carriage but also on the roll stand itself. Specifically, in this case, the measuring device can be placed within the protected area of the operator-side stand housing.

The detected measurements can be manually sent to the automation unit that controls the roll stand. However, preferably, there is a data link between the measurement system and the automation unit, which automatically transfers the detected temperature and / or diameter to the automation unit, thereby being detected by the automation unit. Allows the temperature and / or diameter to be associated with a predetermined detection position. For this purpose, in addition to temperature and / or diameter, it may also be necessary to transfer the detection position to the automation unit.

This object is further achieved by utilizing the operating method for the roll stand, which has the characteristics of claim 9. According to the present invention, the type of operation described at the beginning is
− In the direction of the roll axis during or immediately after removing the roll from the roll stand and transferring the roll to the roll exchange carriage using a measurement system located on the roll stand or on the roll exchange carriage. The temperature and / or diameter of the two rolls is detected in an automated form, at least at a predetermined detection position when viewed.
-Detected temperature and / or diameter is automatically transferred to the automation unit, which allows the automation unit to associate the detected temperature and / or diameter with a pre-defined detection position.
-The automation unit compares the temperature of the roll identified using the role model with the temperature of the roll identified using the measurement system and / or the diameter of the roll identified using the role model. Is embodied in such a way that a measurement system is used to compare the diameter of the identified rolls and this comparison is used to fit the role model.

The above-mentioned properties, features and advantages of the present invention, as well as the forms in which they are achieved, can be more clearly and clearly understood in combination with the following description of the exemplary embodiments. , Explained in more detail in combination with the drawings.

It is a schematic diagram which shows the multi-stand roll row during rolling of a rolling stock. It is a schematic diagram which shows the model of a rolling gap and the identification of the activation of the function of a roll stand. It is a schematic diagram which shows the removal of the roll of a roll stand from a roll stand. It is a schematic diagram which shows the roll row of FIG. 1 while rolling is stopped. It is a schematic diagram which shows the measurement system and the automation apparatus. It is a flow chart. It is a schematic diagram which shows one possible embodiment of a roll exchange carriage. It is a schematic diagram which shows the modification form of the roll exchange carriage of FIG. It is a schematic diagram which shows the further modification form of the roll exchange carriage of FIG. It is a schematic diagram which shows another possible embodiment of a roll exchange carriage. It is a schematic diagram which shows one possible embodiment of a roll stand.

According to FIG. 1, the metal flat rolled stock 1 passes through the roll stand 2 of the roll row and is rolled during the process. Rolling is performed in each case between two rolls 3 of the same type in each roll stand 2. The flat rolled stock 1 can be a strip or plate. The metal constituting the flat rolled stock 1 can be, for example, steel or aluminum. In principle, the flat rolled stock 1 can be hot rolled. However, the present invention can be used to be advantageous, especially when the rolling is cold rolling. The two rolls 3 of the same type are generally the two working rolls of each roll stand 2, that is, the rolls that act in direct and direct contact with the flat rolled stock 1. Alternatively, they may be rolls that act directly or indirectly on the roll being machined, eg, a support roll in the case of a 4-high stand or a 6-high stand, or a 6-high stand. , Can be an intermediate roll placed between the support roll and the roll being machined. In each case, the rolls 3 are functionally the same type, and are of the same type in the sense that one of the two rolls 3 acts on the rolled stock 1 from above and the other acts from below.

The roll sequence is controlled by the automation unit 4. Specifically, the automation unit 4 also controls the roll stand 2 thereby. One control of the roll stand 2 by the automation unit 4 will be described in more detail below as a representative example of all roll stands 2 in combination with FIG. First, note the fact that this type of control is itself widely known to those of skill in the art. Specific implementation details are therefore not needed.

According to FIG. 2, the automation unit 4 implements the role model 5. The automation unit 4 sends the operation data BD of the roll stand 2 to the roll model 5. In general, the motion data BD describes the actual properties of the flat rolled stock 1 as it travels into the roll stand 2, such as its width, its thickness, its chemical composition, and its temperature. include. In general, the motion data BD also includes, as the flat rolled stock 1 exits the roll stand 2, its associated contour, associated contour and / or its thickness combined with associated flatness, and the like. Includes set value characteristics of flat rolled stock 1. The automation unit 4 further sets the control data SD for the roll stand 2, even if only temporarily. The control data SD is also sent to the role model 5. The control data SD can include, for example, setting, rolling force, bending force and other factors. Utilizing the roll model 5, the controller identifies the temperature T of each roll 3 and / or the diameter D of each roll 3 for two rolls 3 of the same type. In addition, the controller also identifies the characteristics of the resulting rolling gap as the flat rolled stock 1 exits the roll stand 2, and based on the latter, the predicted actual actual rolling stock 1. Identify the characteristics. In all cases, the identification is made by determining the location when viewed in the direction of the roll axis. Therefore, it is done at least at a predetermined specific position p. However, the 20 cm spacing pointed out in FIG. 2 between adjacent specific positions p should be understood as merely an example.

The automation unit 4 is then identified using the roll model 5 to show its expected actual characteristics as the flat rolled stock 1 exits the roll stand 2 and the flat rolled stock 1 roll stands. Compare with its desired set value characteristics as it exits from 2. As long as necessary, its expected actual characteristics as the flat rolled stock 1 exits the roll stand 2 and its desired set value characteristics as the flat rolled stock 1 exits the roll stand 2. There, the automation unit 4 modifies the control data SD in order to be as close as possible to. This involves a repetitive procedure, as long as necessary. Changes in the control data SD are shown in FIG. 2 due to the fact that the operation data BD is sent only to the role model 5 by the automation unit 4, whereas the control data SD can be sent in both directions. There is.

As already mentioned, the procedure described is already widely known to those skilled in the art and is well known as such. It is repeated during rolling of the flat rolled stock 1, eg, for a new section of the flat rolled stock 1, or for a subsequent flat rolled stock 1. As a result, the automation unit 4 thereby repeatedly identifies the temperature T and / or diameter D of the roll 3 (especially among several factors and from the determination of location when viewed in the direction of the roll axis). Based on this, the activation SD of each function of the roll stand 2, that is, the control data SD is specified. The identification of diameter D includes both temperature-induced expansion of roll 3 and changes associated with wear of diameter D. The corresponding model is known to those of skill in the art by the term TWC (Thermage Crown). As part of the modeling, the temperature of the flat rolled stock 1 is often also specified. This is also widely known and well known to those skilled in the art.

It is necessary to replace the roll 3 after rolling a specific number of flat rolled stocks 1, for example, after rolling 20 or 25 flat rolled stocks 1. For this purpose, according to the illustration of FIG. 3, the roll exchange carriage 6 is positioned next to the roll stand 2 on which the roll 3 should be exchanged. Specifically, the roll stand 2 has a stand housing 2 ′ on the operator side and a stand housing 2 ″ on the drive side. The roll exchange carriage 6 is arranged next to the stand housing 2'on the operator side. The roll 3 is then removed from the roll stand 2 and transferred to the roll exchange carriage 6 as indicated by the corresponding arrow in FIG. The removed roll 3 is shown by a dotted line in FIG.

In general, rolling interruptions in which the flat rolling stock 1 is not rolled in the roll row are incorporated into this process. FIG. 4 shows the state of the roll row corresponding to this. However, there is also a known procedure in which the roll 3 can be replaced while the flat rolled stock 1 is passing through the roll stand 2. Which of the procedures is adopted in the context of the present invention is less important.

The removal of the roll 3 and the transfer of the roll 3 to the roll exchange carriage 6 can be performed in a conventional and widely known format. However, it is important that the temperature T and / or diameter D of the two rolls 3 be detected while the roll 3 is removed from the roll stand 2 and the roll 3 is transferred to the roll exchange carriage 6 or immediately after the procedure. be. Therefore, the detection is performed before the roll exchange carriage 6 is moved away from the roll stand 2.

The detection is automatically performed using the measurement system 7, and the measurement system is arranged on the roll stand 2 or the roll exchange carriage 6. Further, the detection is performed by determining the location when viewed in the direction of the roll axis, that is, at least at a predetermined detection position p'. Directly adjacent detection positions p'can have intervals of, for example, 8 cm, 10 cm, 12 cm, 15 cm or 20 cm from each other.

Further, the temperature T and / or the diameter D can be detected individually and independently of each other by utilizing the measuring system 7. Therefore, it is impossible or not easily possible to draw a conclusion about the temperature T for another detection position p'from the temperature T detected for a particular detection position p'. A similar situation applies to the detected diameter D. Possible implementations of this procedure are described below.

The detected temperature T and / or diameter D is automatically transferred from the measurement system 7 to the automation unit 4. For this purpose, the measurement system 7 has a data link with the automation unit 4. Wired or wireless transfers are possible options here. To implement wireless transfer, the measurement system 7 and automation unit 4 can implement a wireless link via the antenna 8, eg, as illustrated in FIG.

The detected temperature T and / or diameter D is transferred so that the automation unit 4 associates the detected temperature T and / or diameter D with a predetermined detection position p'. For example, the detection position p'may be transferred at the same time. The automation unit 4 also determines at which detection position p'the temperature T and / or the diameter D is detected, and in what order the temperature T and / or the diameter D is transferred from the measurement system 7 to the automation unit 4. Can be known in advance.

The automation unit 4 receives the transferred temperature T and / or diameter D in step S1 according to FIG. In step S2, the automation unit 4 performs coordinate matching. The temperature T and / or diameter D detected with respect to the detection position p'is used to identify the corresponding temperature T and / or diameter D with respect to the particular position p, for example by linear interpolation or by any other type of interpolation method. can do. As an alternative, in step S2, the temperature T and / or diameter D identified with the help of the model for a particular position p to the detection position p'by linear interpolation or by any other type of interpolation method. It is possible to convert. If the detection position p'and the specific position p directly correspond to each other, step S2 can be omitted.

In step S3, the automation unit 4 detects the temperature T and / or the corresponding diameter D of the roll 3 identified by using the roll model 5 and the temperature T and / or the temperature T of the roll 3 detected by using the measurement system 7. Or compare with diameter D. Specifically, in step S3, the automation unit 4 identifies the first modified value δk1 for the first model parameter k1 of the role model 5 based on the comparison of temperatures T and based on the comparison of diameters D. It is possible to specify the second modified value δk2 for the second model parameter k2 of the role model 5. Using the identified modification values δk1 and δk2, the automation unit 4 can then modify the model parameters k1 and k2 in step S4 so that the role model 5 can be adapted. As a matter of course, the model parameters k1 and k2 become part of the determination of the temperature T and / or the diameter D of the roll 3, which is carried out utilizing the roll model 5.

Next, possible embodiments in which the detection of temperature T and / or diameter D can be performed will be described below in combination with FIGS. 7-11.

In all embodiments, there are containment devices for the two rolls 3. In most of the embodiments, the containment device is designed as a roll exchange carriage 6 according to the illustrations of FIGS. 7-10. In such cases, the retractor (ie, the roll exchange carriage 6) can transfer the roll 3 from the roll stand 2 to the retractor, and vice versa, with respect to the roll stand 2. Can be positioned. However, in individual cases, the containment device may be a component of the roll stand 2 itself, as illustrated in FIG.

Thus, for example, as illustrated in FIG. 7, the measuring system 7 can have a plurality of measuring devices 9 for each roll 3. In the embodiment according to FIG. 7, the measuring device 9 is arranged at a position fixed to the main body 10 of the roll exchange carriage 6. Using the measuring device 9, in each case, the temperature T and / or the diameter D of each roll 3 is detected at one of the predetermined detection positions p'when viewed in the direction of the roll axis. NS. In the context of the embodiment according to FIG. 7, the roll 3 is thereby first removed from the roll stand 2 and transferred to the roll exchange carriage 6. After this, each measuring device 9 detects the temperature T and / or the diameter D of the associated roll 3 for its respective detection position p'. The detection of the temperature T can be achieved either by contact or by non-contact. Detection of temperature T by contact can be achieved using, for example, a sensing probe. For this purpose, the sensing probe can be equipped with, for example, a PT100 element. It is also possible to use the same sensing probe or some other sensing probe to detect the diameter D by contact, if applicable. To detect diameter D, the corresponding sensing probe may be similar in design to, for example, a micrometer screw. As an alternative, non-contact detection of temperature T can be performed using, for example, an infrared camera. For example, it is also possible to perform non-contact detection of the diameter D by using the distance measurement by a laser or the distance measurement by an ultrasonic wave.

FIG. 8 shows an embodiment similar to that of FIG. Also in the case of the embodiment shown in FIG. 8, the measuring system 7 has a plurality of measuring devices 9 for each roll 3. However, in contrast to the embodiment of FIG. 7, the measuring device 9 in the embodiment according to FIG. 8 is arranged so as to be movable individually or together with respect to the main body 10 in the direction of the roll axis. Mobility is indicated by the corresponding bidirectional arrows in FIG. Using the measuring device 9, in each case, in each subsection including at least one of the predetermined detection positions p'when viewed in the direction of the roll axis, the temperature T of each roll 3 and / Or the diameter D can be detected. In other respects, the terms associated with FIG. 7 continue to apply.

In the case of the embodiment shown in FIGS. 7 and 8, the measuring system 7 has a plurality of measuring devices 9 for each roll 3 in each case. However, it is possible that the measuring system 7 has only a single measuring device 9 for each roll 3. In such a case, the temperature T and / or diameter D of each roll 3 is utilized by using the individual measuring devices 9 at least at all of the predetermined detection positions p'when viewed in the direction of the roll axis. Must be able to detect.

In order to enable such detection, for example, the embodiment of FIG. 9 can be adopted. FIG. 9 is basically an embodiment of FIG. The difference is that, in contrast to the embodiment of FIG. 8, there is only a single measuring device 9 for each roll 3, but to compensate for this, when this measuring device 9 is viewed in the direction of the roll axis. The area that can be moved to is correspondingly large, so that the measuring device 9 can be moved at least over the entire effective barrel length of the roll 3. In FIG. 9, as in FIG. 8, mobility is indicated by the corresponding bidirectional arrows.

As a result, for each roll 3, the only important factor for data acquisition at all of the predetermined detection positions p'using a single measuring device 9 is the relative motion of the measuring device 9 with respect to the roll 3. Is. Therefore, whether or not the roll 3 is stopped in the main body 10 of the roll exchange carriage 6 and the measuring device 9 is moved, or conversely, whether or not the measuring device 9 is stopped and the roll 3 is moved is determined. , Not important during data acquisition. Therefore, according to the illustration of FIG. 10, by kinematically reversing the procedure of FIG. 9, the measuring device 9 can be arranged at a fixed place on the main body 10 of the roll exchange carriage 6.

In such cases, the measuring device 9 is arranged such that each roll 3 is moved past the measuring device 9 during transfer from the roll stand 2 to the roll exchange carriage 6 and vice versa. You just have to be done. This can be easily implemented.

To be precise, in this embodiment, the measuring device 9 is placed in a fixed location, and the measuring device 9 is moved while each roll 3 is transferred from the roll stand 2 to the roll exchange carriage 6 and vice versa. In an embodiment in which the measuring device 9 is not placed in a fixed place on the roll exchange carriage 6 but on the roll stand 2 itself, in detail on the operator side, according to the illustration of FIG. It can also be mounted in such a way that it is placed on the stand housing 2'of. In such cases, the containment device is therefore a component of the roll stand 2.

The present invention has many advantages. Specifically, continuous modification of the model parameters k1 and k2 of the role model 5 is possible in a simple and reliable format. Improved modeling can also improve the rolling quality of rolling stock 1. In particular, the quality of thickness, flatness, and contour can be enhanced. Modeling of the temperature of the rolled stock 1 can also be improved. In addition, improved predictions in rolling of new materials are possible.

Although the invention has been exemplified and described more specifically by utilizing preferred exemplary embodiments, the invention is not limited by the disclosed examples and is the scope of protection of the invention. Other variants can be derived from it by those skilled in the art without exceeding.

1 ・ ・ ・ Rolled stock 2 ・ ・ ・ Roll stand 2 ´ 2 ´ ´ ・ ・ ・ Stand housing 3 ・ ・ ・ Roll 4 ・ ・ ・ Automation unit 5 ・ ・ ・ Roll model 6 ・ ・ ・ Roll exchange cart 7 ・ ・・ Measurement system 8 ・ ・ ・ Antenna 9 ・ ・ ・ Measuring device 10 ・ ・ ・ Main body BD ・ ・ ・ Operation data D ・ ・ ・ Diameter k1, k2 ・ ・ ・ Model parameters p ・ ・ ・ Specific position p ´ ・ ・ ・ Detection Positions S1 to S4 ・ ・ ・ Step SD ・ ・ ・ Control data T ・ ・ ・ Temperature δk1, δk2 ・ ・ ・ Corrected value

Claims (9)

A storage device for two rolls (3) of the same type in a roll stand (2), the storage device being a component of the roll stand (2) or the roll (3) being said. A storage device that can be transferred from the roll stand (2) to the storage device and vice versa, and can be positioned with respect to the roll stand (2).
The storage device has at least one measurement system (7), and the measurement system (7) is used to at least at a predetermined detection position (p') when viewed in the direction of the roll axis. , A storage device characterized in that the temperature (T) and / or diameter (D) of the roll (3) can be detected individually and independently of each other. The storage device according to claim 1, wherein the storage device is designed as a roll exchange carriage (6). For each roll (3), the measuring system (7) has a plurality of measuring devices (9) whose location is fixed with respect to the main body (10) of the storage device, whereby the measuring device (9) is located. ) To the temperature (T) and / of the roll (3) at one of the predetermined detection positions (p') in each case when viewed in the direction of the roll axis. The storage device according to claim 2, wherein the diameter (D) can be detected. For each roll (3), the measuring system (7) has a plurality of measuring devices (9) that are movable with respect to the main body (10) of the accommodating device, thereby making the measuring device (9). Utilizing the roll (3) within each subsection including at least one of the predetermined detection positions (p') in each case when viewed in the direction of the roll axis. The storage device according to claim 2, wherein the temperature (T) and / or the diameter (D) can be detected. For each roll (3), the measuring system (7) has a single measuring device (9), and the measuring device (9) is used to advance the measurement when viewed in the direction of the roll axis. Claim 1 or 2, characterized in that the temperature (T) and / or diameter (D) of each of the rolls (3) can be detected at at least all of the defined detection positions (p'). The containment device described. The measuring device (9) is arranged on the main body (10) in such a way that it is movable when viewed in the direction of the roll axis, whereby the measuring device (9) is placed on the roll (3). The storage device according to claim 5, wherein the storage device can be moved over the entire effective barrel length. The measuring device (9) is moved so that each of the rolls (3) is moved past the measuring device (9) during transfer from the roll stand (2) into the roll exchange carriage (6). The storage device according to claim 5, wherein the storage device is arranged in a fixed place on the main body (10) of the storage device in a manner similar to that of the storage device and vice versa. There is a data link between the measurement system (7) and the automation unit (4) that controls the roll stand (2), and the measurement system (7) has the detected temperature (T). And / or the diameter (D) is automatically transferred to the automation unit (4), whereby the detected temperature (T) and / or diameter (D) is preliminarily transferred by the automation unit (4). The storage device according to any one of claims 1 to 7, wherein the storage device can be associated with a specified detection position (p'). This is the operation method of the roll stand (2).
-A flat rolled stock (1) passing through the roll stand (2) is rolled between two rolls (3) of the same type in the roll stand (2).
-The automation unit (4) that controls the roll stand (2) utilizes a roll model (5) that uses the operation data (BD) of the roll stand (2) for the roll (3) of the same type. When viewed in the direction of the roll axis, the temperature (T) and / or diameter (D) of the roll (3) is repeatedly specified and specified at least at a predetermined specific position (p). Based on (T) and / or diameter (D), the activation (SD) of the function of the roll stand (2) is specified, and as a result, the rolling gap of the roll stand (2) is set as much as possible. According to the value input, it is set during rolling of the flat rolling stock (1).
− A method of operating the roll stand (2), wherein the roll (3) of the same type is occasionally removed from the roll stand (2) and moved into a roll exchange carriage (6).
-Using the measurement system (7) arranged on the roll stand (2) or the roll exchange carriage (6), the roll (3) can be removed from the roll stand (2), and the roll can be removed. The two rolls at least at a predetermined detection position (p') when viewed in the direction of the roll axis during or immediately after the roll (3) is being transferred into the exchange carriage (6). The temperature (T) and / or diameter (D) of (3) is automatically detected.
-The detected temperature (T) and / or diameter (D) is automatically transferred to the automation unit (4), whereby the detected temperature (T) by the automation unit (4). And / or the diameter (D) can be associated with a predetermined detection position (p'),
-The automation unit (4) measures the temperature (T) of the roll (3) specified by using the role model (5) to the roll (7) specified by using the measurement system (7). The diameter (D) of the roll (3) compared to the temperature (T) of 3) and / or identified using the role model (5) is specified using the measurement system (7). A method of operating a roll stand (2), characterized in that the roll model (5) is adapted using this comparison as compared to the diameter (D) of the roll (3).

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