METHOD AND CONTROL DEVICE FOR OPERATING A STRIP HANDLING INSTALLATION FOR PROCESSING STRIP, IN PARTICULARLY METAL STRIP OR ROLLED STOCK - Patent application

Abstract

The invention relates to a method for operating a strip handling installation (1) for processing a strip (2), in particular a metal strip or rolled material, in which a strip (2) is guided through a strip handling installation (1) along a conveying direction on conveying rollers (3), the strip handling installation (1) having at least two successive strip travel controls (4, 5, 6) along the conveying direction, the strip travel controls (4, 5, 6) being designed for detecting and adapting the position of the strip (2) transverse to the conveying direction by sensors, in particular sensors of the strip travel controls (4, 5, 6) of the strip handling installation (1), The present invention relates to a control device for operating a strip handling installation (1) for processing a strip (2), in particular a metal strip or rolled material.The ...

Description

[Technical field]

[0001] The present invention relates to a method for operating a strip handling installation for processing strip, in particular metal strip or rolled stock, and further to a control device for operating a strip handling installation for processing strip, in particular metal strip or rolled stock. [Background technology]

[0002] During the production, manipulation and treatment of metal strip, the strip, in particular metal strip or rolled stock, is guided through the handling installation in the transport direction. If necessary, the strip, which is fed onto a material roll, a so-called coil, is unwound at the inlet of the strip handling installation. After processing in the handling installation, the processed strip can be wound again onto a coil to facilitate transport.

[0003] In this case, the strip is guided through the handling facility by means of conveying rollers. Due to its geometric shape, the strip has a tendency to move laterally from the conveying rollers, in particular the deflecting rollers, i.e. transversely to the conveying direction. To ensure the position of the strip at the conveying rollers, the handling facility has a number of successive, spaced apart strip travel controllers along the conveying direction. The distance between the strip travel controllers of the handling facility can be several hundred meters, for example 300-500 m, the strip travel controllers being typically freestanding relative to one another.

[0004] The strip travel control device is used to hold the strip in the center of the transport rollers transverse to the transport direction or in another fixed position transverse to the transport direction, thereby ensuring uniform handling of the strip by the handling equipment and avoiding damage to the strip or the handling equipment.

[0005] That is to say, the strip travel control devices are designed to detect and adapt the position of the strip transverse to the transport direction, and for this purpose each have a sensor for determining the position of the strip transverse to the transport direction and an actuator for adapting the position of the strip transverse to the transport direction.

[0006] The sensor detects, for example, one or both side edges of the strip.Furthermore, image sensors are known from the prior art which include an inductive measuring frame or an image evaluation device.

[0007] The actuators are, for example, formed as pivotable rollers which transmit a movement component to the strip transverse to the main transport direction. The sensors and actuators of the strip travel control are connected to a control logic which controls the actuators on the basis of the sensor data.

[0008] That is, the strip travel control devices each detect the position of the strip in the strip handling device, i.e. transverse to the transport direction, by means of a sensor, and from the sensor data, logic calculates the deviation of the strip from a target position, usually from the center of the transport roller transverse to the transport direction, and triggers a correction of the strip position transverse to the transport direction by means of an actuator.

[0009] A corresponding strip travel control device is disclosed, for example, in WO 2009030388 A1.

[0010] However, in the known prior art, problems arise with rapid changes in the strip shape, for example so-called dog legs in the region of the weld seam when welding a strip to be continuously manipulated. In this case, rapid changes in the strip position and therefore large and rapid deviations from the strip target position occur. The logic of the strip travel control reacts to this with significant corrections by the actuators. The problem is exacerbated by the fact that the sensors and actuators of the strip travel control are in some cases several meters apart from one another. Overall, therefore, significant control interventions or misinterventions occur in the region of rapidly changing strip shapes, which can have a negative effect on the strip manipulation of the strip, on the strip itself and / or on the positioning of the strip.

[0011] Another problem in the prior art is that of rolling material with large deviations transverse to the longitudinal direction of the strip, also called strip sabers. If the strip has such a movement transverse to the longitudinal direction, significant deviations from the strip target position occur up to the next strip run control device. Since the strip target position is usually located in the center of the strip conveying roller, it can occur in both directions transverse to the center of the strip conveying roller, depending on the direction of the deviation transverse to the longitudinal direction. In order to be able to compensate for such deviations, in the prior art the width of the conveying roller and, if necessary, the inside passage width of the strip handling equipment are correspondingly enlarged. This results in significant additional costs, since the strip handling equipment can be several hundred meters long.

[0012] Additionally, during strip manipulation, errors can occur if the strip is not in the desired location during manipulation, particularly centered on the transport rollers, especially in the case of in-line conditioning equipment, coaters, heat treatment equipment, or trimming shears. [Prior art documents] [Patent documents]

[0013] [Patent Document 1] International Publication No. 2009030388 Brochure Summary of the Invention [Problem to be solved by the invention]

[0014] Based on the above-mentioned prior art, the problem underlying the present invention is to provide a method and a control device for operating a strip handling installation for processing strip, in particular metal strip or rolled stock, which reduces the negative effects of both rapid changes in the strip shape, such as, for example, so-called dog legs in the area of ​​the weld seam, and large deviations transverse to the longitudinal direction of the strip, such as, for example, so-called strip sabers, thereby preventing damage to the strip and the strip handling installation, avoiding accidents and additionally reducing the production costs of the strip handling installation. [Means for solving the problem]

[0015] The object of the invention is to provide a method for operating a strip handling installation for processing strip, in particular metal strip or rolled stock, in which the strip is guided through the strip handling installation along the transport direction by means of transport rollers, the strip handling installation having at least two successive strip travel controls along the transport direction, the strip travel controls being designed for detecting and adapting the position of the strip transverse to the transport direction, comprising: - detecting the position of the strip transversely to the transport direction by means of a sensor, in particular a sensor of a strip travel control of a strip handling installation; sensing by a sensor a characteristic of the strip that influences the position of the strip transverse to the conveying direction; The detected characteristics of the strip are then mapped to corresponding points or segments of the strip. A matching step; Sensed by an upstream sensor, particularly an upstream strip travel controller, Strip Corresponding - actively adapting the position of the strip transverse to the conveying direction in a strip travel control device downstream in the conveying direction based on the characteristics relating to the points or segments; The problem is solved by a method comprising the steps of:

[0016] A strip within the meaning of the invention corresponds in particular to a metal strip or rolled stock. Transverse to the transport direction corresponds to a movement perpendicular to the transport direction in the plane of the strip.

[0017] According to the invention, the position of the strip transverse to the transport direction is detected by a suitable sensor, in particular a sensor of a strip travel control of the strip handling installation, which detects, for example, one or both side edges of the strip. Furthermore, image sensors including inductive measuring frames or image evaluation devices known from the prior art can also be used.

[0018] Then, based on the sensor data, according to the invention, strip properties are determined which influence the position of the strip transverse to the conveying direction. These are in particular so-called doglegs, strip sabers or comparable strip properties in the region of the weld seam. For example, the sensor data detects cases where the vertical position of the strip transverse to the conveying direction changes rapidly, which corresponds to a dogleg of the strip. If the change in the position of the strip transverse to the conveying axis is slow and constant, so-called strip sabers are detected, i.e. irregularities in the strip which influence the position of the strip transverse to the conveying direction are detected.

[0019] Based on the sensor data, the first strip travel controller performs a control intervention and corrects the position of the strip transverse to the conveying axis by means of the associated actuator of the strip travel controller, even if no further information is available. This leads to abrupt changes in the case of doglegs, which may have a negative effect on the strip and / or the strip handling installation, in particular the corresponding strip travel controller. Since there is usually a certain distance between the sensors and actuators of the strip travel controller and since constant changes, such as in the case of strip sabers, are always associated with a control delay, the strip first runs out of the strip target position, i.e. transverse to the conveying direction, before the strip travel controller corrects the strip position again to the strip target position. The width of the conveying roller must therefore be designed larger than the actual width of the strip, which can result in significant additional costs, especially if the strip handling installation is very long. Conveying rollers in the sense of the present invention relate not only to individual rollers, but also to conveying areas with several rollers for constituting the conveying surface.

[0020] The properties recognized by the invention which influence the position of the strip transverse to the transport direction are: Strip Corresponding That is, the data detected by the sensor and subsequently evaluated is associated with a point or segment. Strip Corresponding It is associated with a point or a segment.

[0021] According to the invention, the downstream strip travel control device in the conveying direction detects an upstream sensor, in particular an upstream strip travel control device, Strip CorrespondingBased on the characteristics relating to the points or segments, the position of the strip transverse to the conveying direction is actively adapted. An active adaptation in the sense of the invention particularly relates to early preparation for the adaptation of the position of the strip transverse to the conveying direction to be performed, so that the adaptation can be performed as soon as the detected characteristics of the strip occur. This significantly reduces the control delays that would otherwise normally occur. Furthermore, although the detected characteristics relate to rapid changes in the position of the strip transverse to the conveying direction, the active adaptation can also include a more uniform adaptation of the position of the strip transverse to the conveying direction. This significantly improves quiet running. Furthermore, the active adaptation can also relate to non-performance of the adaptation of the position of the strip transverse to the conveying direction, in particular if the characteristics influencing the position of the strip transverse to the conveying direction are rapid and short-term due to a very limited area.

[0022] That is to say, according to the invention, an early, i.e. proactive, reaction is made to the detected strip characteristics on the basis of the detected and evaluated sensor data of the strip travel control device in order to avoid unnecessary or abrupt control interventions and to make the transport of the strip quieter and more coordinated overall. The proactive adaptation can be carried out by the strip travel control device at the optimal time, if the detected characteristics are: Strip Corresponding This is because it is associated with a point or segment, and the position of the point or segment within the strip handling installation can be easily determined at any time.

[0023] According to a variant of the invention, the method comprises the steps of: transmitting from an upstream strip travel control device to a downstream strip travel control device at least in the conveying direction, preferably to a plurality of downstream strip travel control devices: Strip CorrespondingThe method according to the invention comprises a step of transferring the sensed characteristics of the points or segments. Thus, the method according to the invention is executed in a controller of a strip travel controller and the corresponding data is transmitted from the upstream strip travel controller to one or more downstream strip travel controllers. This can be preferably done via existing communication means, but also by utilizing other components or parts of the installation, e.g. a central controller.

[0024] In an alternative or additional variation of the present invention, the method further comprises transmitting, from the strip running controller to a computing device: Strip Corresponding The method includes a process for transmitting the detected characteristics for the points or segments, and a calculation device optimizes the position of the strip transverse to the conveying direction for conveying the strip through the strip handling facility based on the transmitted characteristics for the corresponding points and segments. In particular, the calculation device optimizes the conveying of the strip through the entire strip handling facility and can perform corresponding active adaptations of the positions of the strip transverse to the conveying direction for all strip travel control devices. The calculation device enables a global optimization for conveying the strip through the strip handling facility.

[0025] According to a purposeful variant of the invention, the optimization is based on machine learning methods or simulations for optimization objectives, in particular, to minimize strip damage, to avoid uneven strip operation by the strip handling equipment, to minimize the width of the strip handling equipment, to avoid damage to the strip handling equipment, in particular the transport equipment and the strip travel control equipment, to avoid unnecessary downtimes of the strip handling equipment, for example due to accidents, or equivalent, i.e., data-driven models are used to optimize the strip target position of the strip for the entire transport through the strip handling equipment.

[0026] In a variant according to the invention, an active adaptation of the position of the strip transverse to the transport direction in a strip transport control device downstream in the transport direction is carried out on the basis of an optimization of the calculation device, for which purpose the results of the optimization are transmitted from the calculation device to the downstream strip transport control device, and the optimization expediently takes into account the data of all upstream strip transport control devices.

[0027] In an advantageous variant of the invention, the method further comprises the step of: determining the position of the strip transverse to the transport direction, optimized by the calculation device, in a strip travel control device. Strip Corresponding The method includes a step of comparing the actual positions of the points or segments and, if necessary, adapting the actual position of the strip transverse to the conveying direction by the strip travel control device, i.e. for each strip travel control device, the actual position of the strip is compared with the optimized strip position determined by the computing device and, in the event of deviations, is corrected accordingly.

[0028] According to one variant, the method according to the invention comprises the steps of: determining a position of the strip transverse to the conveying direction, optimized by a calculation device; Strip Corresponding The deviation between the actual position of the points or segments is fed back to the computing device in order to improve the optimization. Based on this information, the active adaptation of the strip position transverse to the conveying direction at the downstream strip travel control device in the corresponding conveying direction can be further improved, in particular more uniformly performed. The computing device can also evaluate and improve the quality and accuracy of the optimization by means of this information. In particular, machine learning algorithms can be further trained by this feedback.

[0029] According to a variation according to the invention, the method comprises a process for taking into account past optimizations of the processing of other strips by the strip handling installation when optimizing the position of the current strip transverse to the conveying direction by the computing device, i.e. the experience of previous optimizations is taken into account in the current optimization. If previous active adaptations have been found to be valid when determining the previous detected characteristics influencing the position of the strip transverse to the conveying direction, these active adaptations can be applied accordingly or in modified form, if necessary, to take into account the particularities of the current strip, if the detected characteristics influencing the position of the strip transverse to the conveying direction are comparable.

[0030] In a particularly expedient variant, the method according to the invention comprises the step of training an optimization algorithm on the basis of past optimizations of the processing of other strips by the strip handling installation, whereby the algorithm used for the optimization, i.e. for determining a proactive adaptation of the position of the strip transverse to the conveying direction at the strip travel control downstream in the conveying direction, is trained by data sets from past and also other comparable strip handling installations, whereby the initial accuracy of the optimization algorithm used is improved.

[0031] According to an advantageous variant of the invention, the active adaptation of the position of the strip transverse to the conveying direction in the strip transport control device downstream in the conveying direction takes into account the adaptation of the position of the strip transverse to the conveying direction carried out in the upstream strip transport control device. If an active adaptation carried out in a previous strip transport control device has proven advantageous, the active adaptation in the downstream strip transport control device can be adopted or at least used as a basis for an own active adaptation. This allows the active adaptation of the strip transport control devices along the strip handling installation to be improved. This is particularly advantageous in connection with a calculation device for optimizing the position of the strip transverse to the conveying direction, since the calculation device can thereby better optimize the transport of the strip through the entire strip handling installation. To this end, the calculation device can compare and evaluate the active adaptations of successive strip transport control devices along the strip handling installation with one another. This variant allows in particular changes in detected properties that affect the position of the strip transverse to the conveying direction to be identified along the strip handling installation and taken into account in the optimization. For example, the strip handling installation comprises stretcher levellers, furnaces or other devices that change the properties of the strip, i.e. that also affect the position transverse to the conveying direction. Such changes can be detected and considered for active adaptation of the strip run control systems along the strip handling equipment. 、 This can be taken into account during optimization.

[0032] According to another preferred variant of the invention, the method comprises the step of taking into account information and / or data from equipment upstream of the strip handling installation during the active adaptation of the position of the strip transverse to the transport direction and / or during the optimization of the position of the strip transverse to the transport direction by the computing device, in particular in the transport direction of the first strip handling installation, taking into account the information and / or data from equipment upstream of the strip handling installation. According to an expedient variant, the upstream equipment is selected from hot rolling mills, cold rolling mills, pickling machines, welding machines, in particular four-point sensors or quality monitoring systems of welding machines, coiling machines, etc. Thus, in the method according to the invention, information and / or data about the strip before processing in the strip handling installation is already available, which can be taken into account during the optimization. In particular, this already allows an active adaptation of the position of the strip transverse to the transport direction in the first strip running control device of the strip handling installation. For example, from the information and / or data from the upstream equipment, strip properties that influence the position of the strip transverse to the transport direction can be determined. Information and / or data of upstream equipment are, for example, asymmetries from the rolling mill (wedges, load differences, asymmetric roll down forces, flatness measuring roller signals), information from the roll down system (flatteners, stretcher levellers, temper mills), etc.

[0033] In an expedient variant, the method according to the invention further comprises a step of determining the position of the strip point or segment in the strip handling installation, in particular based on a tracking system of the strip handling installation, so as to ensure that the downstream strip handling installation actively adapts for optimization at the exact moment or time window when the strip has corresponding characteristics that influence the position of the strip transverse to the conveying direction. The position determination is based, for example, on monitoring the conveying speed by the drive rollers of the strip handling installation or the like.

[0034] According to an advantageous variant according to the invention, the method comprises the step of determining the position of the strip transverse to the conveying direction between the two strip transport controllers and transmitting the determined position to an upstream strip transport controller, a downstream strip transport controller and / or a computing unit, for example, so that it can be checked whether a proactive adaptation made has achieved the desired result. The downstream strip transport controller or computing unit can also detect newly occurring changes in the position of the strip relative to the conveying direction and take them into account in the downstream strip handling equipment or generally during optimization.

[0035] According to another preferred variant of the invention, the distance between two successive strip travel control devices at the start of the strip handling installation is smaller than at the end of the strip handling installation, in particular the distance between two successive strip travel control devices increases in the conveying direction, so that at the start of the strip handling installation more information is available for optimization and the position of the strip transverse to the conveying direction can be set more accurately at the start of the strip handling installation. With an increase in the conveying length, more information is available in order to compensate for the strip modulation, in particular with regard to the optimized positioning of the strip transverse to the conveying direction.

[0036] In an expedient variation of the invention, the method is carried out continuously.

[0037] According to a particularly advantageous variant of the invention, the method comprises a step of taking into account information of the strip travel control device, in particular current information regarding the adaptation of the position of the strip transverse to the conveying direction, such as the current attack angle of the conveying rollers of the strip travel control device, a partial or complete position adjustment of the strip travel control device or similar information, in particular when detecting strip properties that influence the position of the strip transverse to the conveying direction or when actively adapting the position of the strip transverse to the conveying direction.

[0038] In another variation according to the invention, an adaptation is taken into account in the strip transport control device when actively adapting the position of the strip transverse to the transport direction. The characteristics of the strip transport control device can change, for example, due to maintenance work or replacement of parts or due to wear over time, i.e., due to long-term changes in general.

[0039] The problem is further solved by a control device for operating a strip handling facility for processing strip, in particular metal strip or rolled stock, in which the strip is guided through the strip handling facility along the transport direction by means of transport rollers, the strip handling facility having a plurality of successive strip run control devices along the transport direction, the strip run control devices being designed for detecting and adapting the position of the strip transverse to the transport direction, characterized in that the control device is designed for performing the method according to the invention.

[0040] The invention will now be explained in greater detail with the aid of an embodiment shown in the drawings. [Brief description of the drawings]

[0041] [Figure 1] FIG. 1 is a schematic diagram of a strip handling installation for processing strips, in which the method according to the invention is carried out. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0042] FIG. 1 shows a schematic view of a strip handling installation 1 for processing a strip 2, in particular a metal strip or rolled stock. In the strip handling installation 1, the strip 2 is guided through the strip handling installation 1 along a conveying direction by means of conveying rollers 3. In the embodiment from FIG. 1, the conveying direction is horizontally from left to right. Furthermore, the strip handling installation has at least two consecutive strip run controls 4, 5, 6 along the conveying direction. According to the embodiment from FIG. 1, the strip handling installation 1 has a total of n strip run controls 4, 5, 6. The strip run controls 4, 5, 6 are each formed for detecting and adapting the position of the strip 2 transverse to the conveying direction.

[0043] Since the strip 2 is often supplied in the form of material rolls, so-called coils, there is often a decoiler 7 at the inlet of the strip handling installation 1. To facilitate further transport, a coiler 8 can be arranged at the end of the strip handling installation 1 in order to rewind the strip 2 into a coil.

[0044] The strip 2 is guided through the strip handling installation 1 by means of conveying rollers 3. The individual conveying rollers 3 may each have a number of separate rollers which constitute a support and conveying surface for the strip 2. Due to its geometry, the strip 2 has a tendency to move laterally away from the conveying rollers 3, i.e. transversely to the conveying direction, away from the deflection rollers at the rear. Strip travel control devices 4, 5, 6 are used to ensure the position of the strip 2 on the conveying rollers 3. In particular, the strip travel control devices 4, 5, 6 are adapted to adjust the position of the strip 2 on the conveying rollers 3 transversely to the conveying direction, or to adjust the position of the strip 2 transversely to the conveying direction. direction The strip is held in another fixed position laterally relative to the

[0045] The strip travel control devices 4, 5, 6 each have a sensor for determining the position of the strip 2 transverse to the conveying direction and a sensor for determining the position of the strip 2 transverse to the conveying direction. of It has an actuator for adjusting it.

[0046] The sensor detects, for example, one or both side edges of the strip 2. Furthermore, image sensors are known from the prior art which include an inductive measuring frame or an image evaluation device.

[0047] The actuator is formed, for example, as a pivotable roller which transmits a movement component to the strip 2 transverse to the main transport direction.

[0048] The stripping operation installation 1 from FIG. - detecting the position of the strip 2 transverse to the transport direction by means of sensors, in particular sensors of strip travel control devices 4, 5, 6 of the strip handling installation 1; - detecting by a sensor a property of the strip 2 which influences the position of the strip 2 transverse to the conveying direction; The detected characteristic of strip 2 is assigned to a corresponding point or segment of strip 2. A matching step; Detected by upstream sensors, in particular the upstream strip travel control devices 4, 5, Strip 2's corresponding - actively adapting the position of the strip 2 transverse to the conveying direction in a strip travel control device 5, 6 downstream in the conveying direction based on the point or segment-related characteristics; In accordance with the present invention, a method for operating a strip handling installation 1 for processing a strip 2, in particular a metal strip or rolled stock, is carried out, the method comprising:

[0049] According to the embodiment from Fig. 1, in the first strip travel control 4, the position of the strip 2 transverse to the transport direction is detected by suitable sensors, in particular by sensors of the first strip travel control 4. With the aid of the sensor data, strip properties which influence the position of the strip transverse to the transport direction are detected. The detected strip properties are assigned to corresponding points or segments of the strip 2.

[0050] In the strip travel control devices 5, 6 downstream in the conveying direction, i.e. the second strip travel control device 5 to the nth strip travel control device 6, the position of the strip 2 transverse to the conveying direction can be actively adapted based on the detected characteristics of the corresponding point or segment of the strip 2.

[0051] To this end, for example, the detected properties of the corresponding points or segments of the strip 2 are transferred from the first strip run controller 4 to a downstream second strip run controller 5 at least in the conveying direction, preferably to all downstream strip run controllers 6. Alternatively or additionally, the detected properties of the corresponding points and segments of the strip 2 are transmitted from the strip run controllers 4, 5, 6 to a computing device 9. Based on the transmitted properties of the corresponding points and segments, the computing device 9 optimizes the position of the strip 2 transverse to the conveying for conveying the strip 2 through the strip handling installation 1, in particular for conveying the strip 2 through the entire strip handling installation 1.

[0052] The optimization is based on machine learning methods or simulations for example, inter alia, minimizing strip damage, avoiding uneven strip operation by the strip handling equipment, minimizing the width of the strip handling equipment, avoiding damage to the strip handling equipment, in particular the conveying equipment and the strip travel control equipment, avoiding unnecessary downtimes of the strip handling equipment, e.g. due to accidents, or equivalent optimization objectives.

[0053] In this case, an active adaptation of the position of the strip 2 transverse to the conveying direction in the downstream strip travel control 5, 6 in the conveying direction is preferably performed on the basis of an optimization by the calculation device 9. In this case, the position of the strip 9 transverse to the conveying direction optimized by the calculation device 9 is compared with the actual position of the corresponding point or segment of the strip 9 in the downstream strip travel control 5, 6 and, if necessary, the actual position of the strip 2 transverse to the conveying direction is adapted by the strip travel control 5, 6. Detected deviations between the position of the strip 2 transverse to the conveying direction optimized by the calculation device 9 and the actual position of the corresponding point or segment of the strip 2 are fed back to the calculation device 9 in order to improve the optimization.

[0054] In order to improve the optimization of the position of the current strip 2 transverse to the conveying direction by the calculation device 9, according to the invention past optimizations for the processing of other strips 2 by the strip handling installation 1 can be taken into account. In particular, the optimization algorithm can be trained on the basis of past optimizations for the processing of other strips 2 by the strip handling installation 1.

[0055] According to a preferred variant of the invention, the active adaptation of the position of the strip 2 transverse to the conveying direction in the downstream strip travel control device 5, 6 in the conveying direction takes into account the adaptation of the position of the strip 2 transverse to the conveying direction performed in the upstream strip travel control device 4, 5. To this end, the strip travel control device 4, 5, 6 can transmit the performed adaptation of the position of the strip 2 transverse to the conveying direction to the calculation device 9, which takes the transmitted adaptation into account when optimizing the position transverse to the conveying direction.

[0056] According to a particularly advantageous variant, the method comprises a step of taking into account information and / or data from equipment upstream of the strip handling installation 1 during active adaptation of the position of the strip 2 transverse to the conveying direction and / or during optimization of the position of the strip 2 transverse to the conveying direction by the calculation device 9. This is advantageous for active adaptation and / or optimization of the position of the strip transverse to the conveying direction in the first strip handling installation 4, in particular in the conveying direction of the strip handling installation 1. The upstream installation is selected, for example, from a hot rolling mill, a cold rolling mill, a pickling machine, a welding machine, in particular a four-point sensor or a quality monitoring system of a welding machine, a decoiler installation 7, etc. According to the embodiment from FIG. 1, in particular information of the decoiler installation 7 can be taken into account, so that information for active adaptation of the position of the strip 2 transverse to the conveying direction is already available in the first strip running control device 4.

[0057] The method according to the invention further determines the position of points or segments of the strip 2 within the strip handling installation 1 , in particular based on a tracking system of the strip handling device 1 .

[0058] The method according to the invention can further comprise the step of detecting the position of the strip 2 transverse to the conveying direction between the two strip travel controllers 4, 5, 6 and transmitting the detected position to the upstream strip travel controller 4, 5, the downstream strip travel controller 5, 6 and / or to the computing device 9. For this purpose, preferably a separate sensor is used for detecting the position of the strip 2 transverse to the conveying direction. In particular, such a sensor can be arranged at the start of the strip handling installation 1, so that information is already available at the first strip travel controller 4 for active adaptation of the position of the strip 2 transverse to the conveying direction.

[0059] According to an advantageous embodiment of the invention, the distance between two successive strip run control devices 4, 5, 6 at the start of the strip operating installation 1 is smaller than at the end of the strip operating installation 1, in particular the distance between two successive strip run control devices 4, 5, 6 increases in the conveying direction.

[0060] Expediently, the process according to the invention is carried out continuously.

[0061] Furthermore, the method according to the invention comprises a step of taking into account information of the strip travel control devices 4, 5, 6, in particular current information regarding the adaptation of the position of the strip 2 transverse to the conveying direction. Information to be taken into account is, for example, the current angles of attack of the conveying rollers of the strip travel control devices 4, 5, 6, a partial or complete position adjustment of the strip travel control devices or similar information. The information is taken into account in particular when detecting properties of the strip 2 which influence the position of the strip 2 transverse to the conveying direction or when actively adapting the position of the strip 2 transverse to the conveying direction.

[0062] In another variation according to the invention, an adaptation is taken into account in the active adaptation of the position of the strip 2 transverse to the transport direction in the strip transport control devices 4, 5, 6. The characteristics of the strip transport control devices 4, 5, 6 can change, for example, due to maintenance work or replacement of parts or due to wear over time, i.e. generally due to long-term changes. In addition, the present application relates to the invention described in the claims, but may also include the following as other aspects. 1. 1. A method for operating a strip handling installation (1) for processing a strip (2), in particular a metal strip or rolled stock, in which a strip (2) is guided through the strip handling installation (1) along a conveying direction by means of conveying rollers (3), the strip handling installation (1) having at least two successive strip travel controls (4, 5, 6) along the conveying direction, the strip travel controls (4, 5, 6) being designed for detecting and adapting a position of the strip (2) transverse to the conveying direction, - detecting the position of the strip (2) transverse to the transport direction by means of a sensor, in particular a sensor of a strip travel control (4, 5, 6) of the strip handling installation (1); - detecting by a sensor a characteristic of the strip (2) which influences the position of the strip (2) transverse to the conveying direction; mapping the sensed characteristics of the strip (2) to corresponding points or segments of the strip (2); - actively adapting the position of the strip (2) transverse to the conveying direction in a downstream strip conveying control device (4, 5, 6) in the conveying direction based on characteristics of a corresponding point or segment of the strip (2) detected by an upstream sensor, in particular an upstream strip conveying control device (4, 5, 6); The method of claim 1, further comprising: 2. 2. The method according to claim 1, further comprising the step of transferring sensed characteristics of a corresponding point or segment of the strip (2) from an upstream strip travel controller (4, 5, 6) to a downstream strip travel controller (4, 5, 6) at least in the conveying direction, preferably to a number of downstream strip travel controllers (4, 5, 6). 3. 3. The method according to claim 1 or 2, further comprising a process of transmitting the sensed characteristics of the corresponding points or segments of the strip (2) from the strip travel control devices (4, 5, 6) to a calculation device (9), which optimizes the position of the strip (2) transverse to the conveying direction for conveying the strip (2) through the strip handling facility (1) based on the transmitted characteristics of the corresponding points and segments. 4. 4. The method according to claim 3, characterized in that the optimization is based on machine learning methods or simulations for optimization objectives, in particular, of minimizing strip damage, avoiding uneven strip operation by the strip operation equipment (1), minimizing the width of the strip operation equipment (1), avoiding damage to the strip operation equipment (1), in particular the conveying equipment and the strip travel control equipment (4, 5, 6), avoiding unnecessary downtimes of the strip operation equipment (1), for example due to accidents, or equivalent. 5. 5. The method according to claim 3 or 4, characterized in that an active adaptation of the position of the strip (2) transverse to the conveying direction in a strip travel control device (4, 5, 6) downstream in the conveying direction is performed on the basis of an optimization by a calculation device (9). 6. 6. The method according to claim 5, further comprising a step of comparing the position of the strip (2) transverse to the conveying direction optimized by the calculation device (9) with the actual positions of the corresponding points or segments of the strip (2) at the strip travel control device (4, 5, 6) and, if necessary, adapting the actual positions of the strip (2) transverse to the conveying direction by the strip travel control device (4, 5, 6). 7. 7. The method according to claim 6, further comprising a process of feeding back to the calculation device (9) the deviation between the position of the strip (2) transverse to the conveying direction optimized by the calculation device (9) and the actual position of the corresponding point or segment of the strip (2) in order to improve the optimization. 8. The method according to any one of claims 2 to 7, further comprising a process for taking into account past optimizations of the processing of other strips (2) by the strip handling equipment (1) when optimizing the position of the current strip (2) transverse to the conveying direction by the calculation device (9). 9. 9. The method according to claim 8, further comprising the step of training the optimization algorithm based on past optimizations of the processing of other strips (2) by the strip processing equipment (1). 10. 10. The method according to any one of claims 1 to 9, characterized in that the active adaptation of the position of the strip (2) transverse to the conveying direction in the downstream strip travel control device (4, 5, 6) in the conveying direction takes into account the adaptation of the position of the strip (2) transverse to the conveying direction performed in the upstream strip travel control device (4, 5, 6). 11. 11. The method according to claim 10, characterized in that the strip travel control device (4, 5, 6) transmits the adaptation of the position of the strip (2) transverse to the performed conveying direction to the calculation device (9), and the calculation device (9) takes the transmitted adaptation into account when optimizing the position transverse to the conveying direction. 12. 12. The method according to any one of claims 1 to 11, further comprising a step of taking into account information and / or data from equipment upstream of the strip operating facility (1) when actively adapting the position of the strip (2) transverse to the conveying direction and / or when optimizing the position of the strip (2) transverse to the conveying direction by the computing device (9), in particular for an active adaptation and / or optimization of the position of the strip (2) transverse to the conveying direction in a first strip operating facility (4) in the conveying direction of the strip operating facility (1). 13. 13. The method according to claim 12, characterized in that the upstream equipment is selected from a hot rolling mill, a cold rolling mill, a pickling machine, a welding machine, in particular a four-point sensor or quality monitoring system of a welding machine, a coiler device (7), etc. 14. The method according to any one of claims 1 to 13, further comprising a step of determining the position of a point or segment of the strip (2) within the strip handling installation (1), in particular based on a tracking system of the strip handling installation (1). 15. 15. The method according to any one of claims 1 to 14, further comprising a step of detecting a position of the strip (2) transverse to the conveying direction between two strip travel control devices (4, 5, 6) and transmitting the detected position to an upstream strip travel control device (4, 5, 6), a downstream strip travel control device (4, 5, 6) and / or a computing device (9). 16. 16. The method according to any one of claims 1 to 15, characterized in that the distance between two consecutive strip run control devices (4, 5, 6) at the start of the strip operating installation (1) is smaller than at the end of the strip operating installation (1), in particular the distance between two consecutive strip run control devices (4, 5, 6) increases in the conveying direction. 17. 17. The method according to any one of claims 1 to 16, characterized in that the method is carried out continuously. 18. 18. The method according to any one of claims 1 to 17, further comprising a process for taking into account information of the strip travel control device (4, 5, 6), in particular current information regarding the adaptation of the position of the strip (2) transverse to the conveying direction. 19. A control device for operating a strip handling installation (1) for processing a strip (2), in particular a metal strip or rolled material, in which a strip (2) is guided through the strip handling installation (1) along a conveying direction by means of conveying rollers (3), the strip handling installation (1) having a plurality of successive strip travel controls (4, 5, 6) along the conveying direction, the strip travel controls (4, 5, 6) being designed for detecting and adapting a position of the strip (2) transverse to the conveying direction, A control device, characterized in that the control device is configured to carry out the method according to any one of 1 to 18 above. [Explanation of symbols]

[0063] 1. Strip operation equipment 2. Strip 3 Conveyor roller 4. First strip running control device 5 Second strip running control device 6 nth strip running control device 7. Decoyra 8. Koira 9 Computing equipment

Claims

1. 1. A method for operating a strip handling installation (1) for processing a strip (2), in which a strip (2) is guided through the strip handling installation (1) along a conveying direction by means of conveying rollers (3), the strip handling installation (1) having at least two successive strip travel controls (4, 5, 6) along the conveying direction, the strip travel controls (4, 5, 6) being designed for detecting and adapting a position of the strip (2) transverse to the conveying direction, i.e. correcting it to a strip target position, - detecting the position of the strip (2) transverse to the conveying direction by means of a sensor or sensors of a strip travel control (4, 5, 6) of the strip handling installation (1); detecting by a sensor a characteristic of the strip (2) that influences the position of the strip (2) transverse to the conveying direction, i.e. a dog leg or a strip sabre; mapping the detected characteristics of the strip (2) to corresponding points or segments of the strip (2); - adapting a position of the strip (2) transverse to the conveying direction in a downstream strip conveying control device (4, 5, 6) based on characteristics of a corresponding point or segment of the strip (2) detected by an upstream sensor or an upstream strip conveying control device (4, 5, 6); The method of claim 1, further comprising:

2. 2. The method according to claim 1, further comprising the step of transferring sensed characteristics of a corresponding point or segment of the strip (2) from an upstream strip travel control device (4, 5, 6) to a downstream strip travel control device (4, 5, 6) or to a number of downstream strip travel control devices (4, 5, 6) at least in the conveying direction.

3. 3. The method according to claim 1 or 2, further comprising a step of transmitting the detected characteristics of the corresponding points and segments of the strip (2) from the strip travel control devices (4, 5, 6) to a calculation device (9), which optimizes the position of the strip (2) transverse to the conveying direction for conveying the strip (2) through the strip handling facility (1) based on the transmitted characteristics of the corresponding points and segments.

4. 4. The method according to claim 3, characterized in that the optimization is based on machine learning methods or simulations for minimizing strip damage, avoiding uneven strip operation by the strip handling installation (1), minimizing the width of the strip handling installation (1), avoiding damage to the strip handling installation (1) or to the conveying devices and the strip travel control devices (4, 5, 6), and avoiding unnecessary downtimes of the strip handling installation (1) due to accidents.

5. 5. The method according to claim 3, wherein the adaptation of the position of the strip (2) transverse to the conveying direction in a strip travel control device (4, 5, 6) downstream in the conveying direction is performed on the basis of an optimization by a calculation device (9).

6. 6. The method according to claim 5, further comprising the step of comparing the positions of the strip (2) transverse to the conveying direction optimized by the calculation device (9) with actual positions of corresponding points or segments of the strip (2) at the strip travel control device (4, 5, 6) and, if necessary, adapting the actual positions of the strip (2) transverse to the conveying direction by the strip travel control device (4, 5, 6).

7. 7. The method according to claim 6, characterized in that it comprises a process of feeding back to the calculation device (9) the deviations between the positions of the strip (2) transverse to the conveying direction optimized by the calculation device (9) and the actual positions of the corresponding points or segments of the strip (2) in order to improve the optimization.

8. The method according to any one of claims 2 to 7, further comprising a process for taking into account past optimizations of the processing of other strips (2) by the strip handling equipment (1) when optimizing the position of the current strip (2) transverse to the conveying direction by the calculation device (9).

9. 9. The method according to claim 8, characterized in that it comprises the step of training the optimization algorithm based on past optimizations of the processing of other strips (2) by the strip handling installation (1).

10. 10. The method according to claim 1, wherein the adaptation of the position of the strip (2) transverse to the conveying direction in a strip travel control (4, 5, 6) downstream in the conveying direction takes into account an adaptation of the position of the strip (2) transverse to the conveying direction performed in an upstream strip travel control (4, 5, 6).

11. 11. The method according to claim 10, characterized in that the strip travel control (4, 5, 6) transmits an adaptation of the position of the strip (2) transverse to the performed conveying direction to a calculation device (9), and the calculation device (9) takes the transmitted adaptation into account when optimizing the position transverse to the conveying direction.

12. 12. The method according to claim 1, further comprising the step of taking into account information and / or data from equipment upstream of the strip handling installation (1) when adapting the position of the strip (2) transverse to the conveying direction and / or when optimizing the position of the strip (2) transverse to the conveying direction by the computing device (9) in order to adapt and / or optimize the position of the strip (2) transverse to the conveying direction in a first strip handling installation (4) in the conveying direction of the strip handling installation (1).

13. 13. The method according to claim 12, characterized in that the upstream equipment is selected from a hot rolling mill, a cold rolling mill, a pickling machine, a welding machine or a four-point sensor or quality monitoring system of a welding machine, a coiler device (7), etc.

14. The method according to any one of the preceding claims, further comprising the step of determining a position of a point or a segment of the strip (2) within the strip handling installation (1) based on a tracking system of the strip handling installation (1).

15. 15. The method according to claim 1, further comprising the step of detecting a position of the strip (2) transverse to the conveying direction between two strip travel controllers (4, 5, 6) and transmitting the detected position to an upstream strip travel controller (4, 5, 6), to a downstream strip travel controller (4, 5, 6) and / or to a computing device (9).

16. 16. The method according to claim 1, characterized in that the distance between two consecutive strip run control devices (4, 5, 6) at the start of the strip operating installation (1) is smaller than at the end of the strip operating installation (1) and the distance between two consecutive strip run control devices (4, 5, 6) increases in the conveying direction.

17. The method according to any one of claims 1 to 16, characterized in that the method is carried out continuously.

18. The method according to any one of the preceding claims, further comprising taking into account information of a strip travel control device (4, 5, 6), i.e. current information regarding adaptation of the position of the strip (2) transverse to the conveying direction.

19. A control device for operating a strip handling facility (1) for processing a strip (2), in which a strip (2) is guided through the strip handling facility (1) along a conveying direction by means of conveying rollers (3), the strip handling facility (1) having a plurality of successive strip travel control devices (4, 5, 6) along the conveying direction, the strip travel control devices (4, 5, 6) being designed for detecting and adapting a position of the strip (2) transverse to the conveying direction, i.e. correcting it to a strip target position, Control device, characterized in that the control device is configured to carry out the method according to any one of claims 1 to 18.

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