Method and control device for operating a strip processing plant for processing strip material, in particular metal strip or rolled material

Abstract

The invention relates to a method for operating a strip processing plant (1) for processing strip material (2), in particular metal strip or rolled material, wherein the strip material (2) is guided along a conveying direction through the strip processing plant (1) using conveying rolls (3), and the strip processing plant (1) comprises at least two strip run control devices (4, 5, 6) which follow one another in the conveying direction, wherein the strip run control devices (4, 5, 6) are used to detect and adjust the position of the strip material (2) transverse to the conveying direction, the method comprising the following steps: detecting the position of the strip material (2) transverse to the conveying direction by means of a sensor, in particular a sensor of a strip run control device (4, 5, 6) of the strip processing plant (1), identifying a property of the strip material (2) by means of the sensor, which property influences the position of the strip material (2) transverse to the conveying direction, assigning the identified property of the strip material (2) to a respective point or section of the strip material (2), and actively adjusting the position of the strip material (2) transverse to the conveying direction at a strip run control device (4, 5, 6) located downstream in the conveying direction on the basis of the property identified for the respective point or section of the strip material (2) by a sensor located upstream, in particular by a strip run control device (4, 5, 6) located upstream. The invention relates to a control device for operating a strip processing plant (1) for processing strip material (2), in particular metal strip or rolled material.

Description

Technical Field

[0001] This invention relates to a method for operating strip processing equipment for processing strip, particularly metal strip or rolled products. The invention also relates to a control device for operating the strip processing equipment for processing strip, particularly metal strip or rolled products. Background Technology

[0002] In the production, handling, and processing of metal strip, strip, especially metal strip or rolled material, is guided along the conveying direction through processing equipment. If necessary, the strip, conveyed in the form of a material coil (i.e., so-called coil), is unwound at the feed point of the strip processing equipment. After processing by the equipment, the processed strip can be rewound into coils to simplify transportation.

[0003] The strip material is guided through the processing equipment using conveyor rollers. Based on its geometry, the strip material tends to extend laterally from the conveyor rollers, particularly deflector rollers, i.e., transversely to the conveying direction. To ensure the strip material's position on the conveyor rollers, the processing equipment includes multiple strip movement control devices arranged sequentially and spaced apart from each other along the conveying direction. The distance between the strip movement control devices in the strip processing equipment can be several hundred meters, for example, 300m to 500m, where the strip movement control devices are typically independent of each other.

[0004] The strip running control device is used to hold the strip in the middle of the conveyor rollers, transverse to the conveying direction, or in another fixed position transverse to the conveying direction. This ensures that the processing equipment handles the strip evenly and avoids damage to the strip or the processing equipment.

[0005] Therefore, the strip running control device is also used to detect and adjust the transverse position of the strip relative to the conveying direction. For this purpose, the strip running control device includes a sensor for determining the transverse position of the strip relative to the conveying direction and an actuator for adjusting the transverse position of the strip relative to the conveying direction.

[0006] For example, the sensor detects one or both edges of the strip. Furthermore, inductive measurement frames or image sensors that include image evaluation are known in the prior art.

[0007] The actuator, for example, is a rotatable roller that transmits a transverse component of motion to the strip. Sensors and actuators of the strip running control device are connected to control logic, which controls the actuators based on sensor data.

[0008] Therefore, the strip operation control device uses sensors to detect the position of the strip in the strip handling equipment, especially its position transverse to the conveying direction. Based on the sensor data, the device logically calculates the deviation of the strip from the target position (usually the middle of the conveyor roller transverse to the conveying direction) and uses actuators to correct the transverse position of the strip.

[0009] For example, a corresponding strip running control device is disclosed in document WO2009 / 030388A1.

[0010] However, in existing technologies, there is a problem with rapid changes in strip shape, such as the so-called dog-leg bends that occur in the weld area when welding sequential strips. This leads to rapid changes in strip position, resulting in significant deviations and rapid shifts from the target strip position. The logic of the strip running control device reacts to this and makes strong corrections via actuators. The problem is exacerbated by the fact that the sensors and actuators of the strip running control device are partially separated by several meters. Therefore, in general, strong control interventions, or even incorrect interventions, occur in areas where strip shape changes rapidly, which can negatively impact strip processing, the strip itself, and / or strip positioning.

[0011] Another problem with the existing technology is that there is a large error in the transverse direction of the strip during rolling, also known as strip misalignment. If the strip deviates laterally from the longitudinal direction in this manner, there will be a significant deviation from the target position of the strip until the next strip running control device. Since the target position of the strip is usually located at the middle of the strip conveyor roller, the error in the transverse longitudinal direction may occur in two directions transverse to the middle of the strip conveyor roller. To compensate for this error, the width of the conveyor roller and, if necessary, the net passage width of the strip handling equipment are correspondingly widened in the prior art. Since the strip handling equipment can be hundreds of meters long, this results in considerable additional costs.

[0012] Furthermore, errors can occur during strip processing if the strip is not in the desired position, particularly in the middle of the conveyor rollers. This is especially true for inline leveling equipment, coating machines, heat treatment units, or trimming shears. Summary of the Invention

[0013] Based on the aforementioned prior art, the object of the present invention is to provide a method and a control device for operating strip processing equipment, particularly metal strip or rolled strip, which reduces the negative effects of rapid changes in strip shape, such as so-called bending in the weld area, and large errors transverse to the longitudinal direction of the strip, such as so-called strip misalignment, thereby preventing damage to the strip and strip processing equipment, avoiding interference malfunctions, and also reducing the manufacturing cost of the strip processing equipment.

[0014] According to the present invention, this objective is achieved by a method for operating a strip processing device for processing strip, particularly metal strip or rolled material, wherein the strip is guided through the strip processing device along the conveying direction by conveying rollers, and the strip processing device includes at least two strip running control devices sequentially arranged along the conveying direction, wherein the strip running control devices are used to detect and adjust the transverse position of the strip to the conveying direction, and the method includes the following steps:

[0015] The transverse position of the strip relative to the conveying direction is detected by means of sensors, especially the sensors of the strip operation control device of the strip handling equipment;

[0016] The sensor identifies the characteristics of the strip, which affect the strip's position transverse to the conveying direction;

[0017] Assigning the identified characteristics of the strip to corresponding points or sections of the strip; and

[0018] At the strip running control device located downstream along the conveying direction, the position of the strip transverse to the conveying direction is actively adjusted based on the characteristics of the corresponding points or sections of the strip identified by the upstream sensors, especially the upstream strip running control device.

[0019] In this invention, "strip" specifically refers to metal strip or rolled material. According to the invention, "transverse to the conveying direction" corresponds to movement in the strip plane perpendicular to the conveying direction.

[0020] According to the present invention, the transverse position of the strip to the conveying direction is detected by means of suitable sensors. These are particularly sensors of the strip operation control device of the strip handling equipment. For example, the sensor detects one or both edges of the strip. Furthermore, inductive measurement frames or image sensors known in the prior art, including image evaluation, can also be used.

[0021] Based on sensor data, the characteristics of the strip, which affect its position transverse to the conveying direction, are then determined according to the invention. These are in particular so-called bends, strip misalignment, or similar strip characteristics in the weld area. For example, sensor data is used to identify when the vertical position of the strip transverse to the conveying direction changes rapidly, which corresponds to strip bends. So-called strip misalignment is identified when the position of the strip transverse to the conveying axis changes slowly and steadily. Irregularities in the strip that affect its position transverse to the conveying direction are also identified.

[0022] If no other information is available, the first strip running control device will perform control intervention based on sensor data and correct the strip's transverse position to the conveyor axis using the relevant actuators of the strip running control device. In the event of a bend, this can lead to a sudden change, which may negatively impact the strip and / or the strip handling equipment, particularly the corresponding strip running control device. Because there is typically a distance between the sensors and actuators of the strip running control device, and steady changes, such as strip misalignment, are always associated with control delays, the strip first deviates from its target position, i.e., in the transverse direction to the conveying direction, before the strip running control device corrects the strip position back to the target position. Therefore, the width of the conveyor rollers must be greater than the actual width of the strip, which can result in considerable additional costs, especially in the case of very long strip handling equipment. The conveyor rollers in this invention refer not only to individual rollers but also to multiple rollers spanning the conveying area to form the conveying surface.

[0023] The characteristics affecting the transverse position of the belt in the conveying direction, as identified according to the present invention, are assigned to corresponding points or sections of the belt. Therefore, data detected by sensors and subsequently evaluated are assigned to corresponding points or sections of the belt.

[0024] According to the present invention, at a strip running control device located downstream along the conveying direction, the transverse position of the strip is actively adjusted based on characteristics of corresponding points or sections of the strip identified by sensors located upstream, particularly the upstream strip running control device. This active adjustment, in the context of the invention, involves early preparation for adjusting the transverse position of the strip, so that the adjustment can be performed when the characteristics of the strip are identified. This significantly reduces control delays that would otherwise frequently occur. Furthermore, active adjustment can also include a more uniform adjustment of the transverse position of the strip, even if the identified characteristics involve rapid changes in the transverse position of the strip. This significantly improves operational smoothness. Additionally, active adjustment can also involve avoiding adjustments to the transverse position of the strip, particularly for rapid and short-term characteristics that affect the transverse position of the strip only within a very limited area.

[0025] According to the present invention, based on sensor data detected and evaluated at the strip transport control device, an early and proactive response is made to the identified strip characteristics to avoid unnecessary or sudden control interventions and to make the overall transport of the strip quieter and more harmonious. The strip transport control device can perform this proactive adjustment at the optimal time because the identified characteristics have been assigned to the corresponding points or sections of the strip, and the positions of the points or sections in the strip handling equipment can be easily determined at any time.

[0026] According to a variation of the invention, the method includes the step of transferring identified characteristics of corresponding points or sections of the strip from an upstream strip running control device to a downstream strip running control device along the conveying direction, preferably to multiple downstream strip running control devices. Therefore, the method according to the invention is implemented in the controller of the strip running control device, and the corresponding data is transmitted from the upstream strip running control device to one or more downstream strip running control devices. This can preferably be accomplished using existing communication devices, but can also be accomplished using other components or parts, such as a central control device.

[0027] In an alternative or additional variation of the invention, the method includes transmitting identified characteristics of corresponding points and segments of the strip from a strip operation control device to a computing device, wherein the computing device optimizes the transverse position of the strip relative to the conveying direction for transporting the strip through the strip processing equipment based on the transmitted characteristics of the corresponding points and segments. Specifically, the computing device can optimize the transport of the strip through the entire strip processing equipment and actively adjust the transverse position of the strip relative to the conveying direction for all strip operation control devices. This computing device enables overall optimization of the transport of the strip through the strip processing equipment.

[0028] According to an advantageous variation of the invention, optimization is based on machine learning methods or simulation, particularly to minimize strip damage, avoid uneven processing by the strip handling equipment, minimize the width of the strip handling equipment, avoid damage to the strip handling equipment, especially the conveying device and the strip operation control device, and avoid unnecessary downtime of the strip handling equipment due to havariefall or similar optimization objectives. Specifically, a data-driven model is therefore used to optimize the target position of the strip throughout its conveying process through the strip handling equipment.

[0029] According to a variant of the invention, at a strip running control device located downstream along the conveying direction, the transverse position of the strip relative to the conveying direction is actively adjusted based on optimization by a computing device. For this purpose, the optimization results are transmitted from the computing device to the downstream strip running control device, wherein the optimization advantageously takes into account data from all upstream strip running control devices.

[0030] In an advantageous variant of the invention, the method includes the following steps: comparing, at a strip operation control device, the optimized transverse position of the strip in the conveying direction by a computing device with the actual position of a corresponding point or segment of the strip, and adjusting the actual transverse position of the strip in the conveying direction by the strip operation control device as needed. For each strip operation control device, the actual position of the strip is compared with the optimized position of the strip determined by the computing device, and corrections are made accordingly when deviations occur.

[0031] According to a variant, the method according to the invention includes feeding back the deviation between the optimized transverse position of the strip in the conveying direction, as determined by a computing device, and the actual position of the corresponding point or segment of the strip to the computing device to improve the optimization. Based on this information, further improvements, particularly more uniform execution of active adjustments to the transverse position of the strip in the conveying direction, can be achieved at a corresponding strip operation control device located downstream in the conveying direction. The computing device can also use this information to evaluate and improve the quality and accuracy of the optimization. In particular, machine learning algorithms can be further trained based on this feedback.

[0032] According to a variant of the invention, the method includes taking into account past optimizations regarding the processing of another strip via the strip handling equipment when the computing device optimizes the transverse position of the current strip. Therefore, experience from previous optimizations is considered when performing the current optimization. If prior proactive adjustments for certain previously identified characteristics affecting the transverse position of the strip have proven effective, these proactive adjustments can be made accordingly or in modified form for similar identified characteristics affecting the transverse position of the strip, so as to take into account the characteristics of the current strip where necessary.

[0033] In a particularly advantageous variant, the method according to the invention includes training an optimization algorithm based on past optimizations regarding the processing of another strip via the strip handling equipment. The algorithm used for optimization, i.e., the algorithm for determining the active adjustment of the strip's transverse position to the conveying direction at a strip running control device located downstream along the conveying direction, is trained using past datasets as well as datasets from other similar strip handling equipment. This improves the initial accuracy of the optimization algorithm used.

[0034] According to an advantageous variant of the invention, the active adjustment of the transverse position of the strip in the conveying direction at a downstream strip running control device takes into account the adjustment performed at an upstream strip running control device. If the active adjustment performed by the preceding strip running control device proves advantageous, the active adjustment at the subsequent strip running control device can adopt that active adjustment or at least use it as the basis for its own active adjustment. This allows for steady improvement of the active adjustments of the strip running control devices along the strip handling equipment. This is particularly advantageous for a computing device that optimizes the transverse position of the strip in the conveying direction, as it can thus better optimize the conveying of the strip through the entire strip handling equipment. For this purpose, the computing device can compare and evaluate the active adjustments of the strip running control devices sequentially along the strip handling equipment. In particular, this variant allows for the determination of the variations in the identified characteristics affecting the transverse position of the strip along the strip handling equipment, and these variations can be taken into account during optimization.

[0035] For example, strip handling equipment includes stretch levelers, ovens, or other devices that alter strip properties, including those affecting the strip's position transverse to the conveying direction. These variations can be identified and taken into account during optimization by considering the proactive adjustments made by the strip handling equipment's sequential strip operation control devices.

[0036] According to another preferred variant of the invention, the method includes the following steps: when actively adjusting the transverse position of the strip in the conveying direction and / or optimizing the transverse position of the strip in the conveying direction by a computing device, particularly for actively adjusting and / or optimizing the transverse position of the strip in the conveying direction at a first strip running control device in the conveying direction of the strip handling equipment, information and / or data from equipment located upstream of the strip handling equipment is taken into consideration. According to an advantageous variant, the upstream equipment is selected from: hot rolling mills, cold rolling mills, pickling machines, welding machines, particularly four-point sensors or quality monitoring systems of welding machines, uncoiling devices, or the like. Thus, the method according to the invention obtains information and / or data about the strip prior to processing in the strip handling equipment, which can be taken into consideration during optimization. In particular, this enables active adjustment of the transverse position of the strip in the conveying direction at the first strip running control device of the strip handling equipment. For example, characteristics of the strip that affect the transverse position of the strip in the conveying direction can be determined based on information and / or data from the upstream equipment. Information and / or data from upstream equipment, such as asymmetries from the rolling mill (wedges, force differences, asymmetric contact forces, signals from the flatness measuring rolls), information from contact systems (flatteners, tension straighteners, levelers), etc.

[0037] In an advantageous variation, the method according to the invention further includes the step of determining the position of a point or segment of the strip within the strip handling equipment, particularly based on the tracking system of the strip handling equipment. This ensures that the downstream strip handling equipment performs proactive adjustments for optimization precisely at the points or windows in time when the strip has appropriate characteristics affecting its position transverse to the conveying direction. Position determination is based, for example, on monitoring the conveying speed, which is performed by means of, for example, the drive rollers of the strip handling equipment or the like.

[0038] According to an advantageous variant of the invention, the method includes the steps of: detecting the transverse position of the strip relative to the conveying direction between two strip operation control devices, and transmitting the detected position to an upstream strip operation control device, a downstream strip operation control device, and / or a computing device. This allows, for example, checking whether an active adjustment performed has achieved the desired effect. The downstream strip operation control device or computing unit can also identify newly occurring positional changes of the strip relative to the conveying direction and take them into account at a downstream strip handling device or typically during optimization.

[0039] According to another preferred variant of the invention, the distance between two successive strip running control devices at the beginning of the strip handling equipment is smaller than the distance between two successive strip running control devices at the end of the strip handling equipment; in particular, the distance between the two successive strip running control devices increases along the conveying direction. Therefore, more information can be obtained at the beginning of the strip handling equipment for optimization, and the transverse position of the strip to the conveying direction can be set more precisely at the beginning of the strip handling equipment. As the conveying length increases, more information, particularly regarding the optimized positioning of the strip transverse to the conveying direction to compensate for strip irregularities, can be obtained.

[0040] In an advantageous variant of the invention, the method is performed continuously.

[0041] According to a particularly advantageous variant of the invention, the method includes considering information from the strip running control device, particularly current information regarding the adjustment of the strip's position transverse to the conveying direction. Information to be considered includes, for example, the current angle of attack of the conveyor rollers of the strip running control device, the alignment of components or the entire strip running control device, or similar information. This information should be considered particularly when identifying strip characteristics affecting the strip's position transverse to the conveying direction or when actively adjusting the strip's position transverse to the conveying direction.

[0042] In another variation of the invention, adjustments to the strip running control device are considered when actively adjusting the transverse position of the strip to the conveying direction. The characteristics of the strip running control device may change, for example, due to maintenance work or replacement of parts, or due to wear over time (i.e., typically long-term changes).

[0043] This objective is also achieved by a control device for operating a strip processing equipment for processing strip, particularly metal strip or rolled material, wherein the strip is guided through the strip processing equipment along the conveying direction by conveying rollers, and the strip processing equipment has a plurality of strip running control devices sequentially arranged along the conveying direction, wherein the strip running control devices are used to detect and adjust the position of the strip transverse to the conveying direction, and wherein the control device is used to execute the method according to the invention. Attached Figure Description

[0044] The invention will now be explained in more detail with reference to the embodiments shown in the accompanying drawings. Wherein:

[0045] Figure 1 A schematic diagram of a strip processing apparatus for processing strip material according to the method of the present invention is shown. Detailed Implementation

[0046] Figure 1 A schematic diagram of a strip processing apparatus 1 for processing strip 2, particularly metal strip or rolled material, is shown. In the strip processing apparatus 1, the strip 2 is guided through the apparatus 1 in the conveying direction by conveying rollers 3. Figure 1 In this embodiment, the conveying direction is a horizontal direction from left to right. Furthermore, the strip handling equipment includes at least two sequentially arranged strip operation control devices 4, 5, and 6 along the conveying direction. Figure 1 In one embodiment, the strip processing equipment 1 includes a total of n strip operation control devices 4, 5, and 6. The strip operation control devices 4, 5, and 6 respectively detect and adjust the transverse position of the strip 2 relative to the conveying direction.

[0047] Since the strip 2 is usually transported in the form of a material roll (so-called a coil), an uncoiler 7 is usually present at the feed point of the strip handling equipment 1. To facilitate further transport, a coiler 8 can be arranged at the end of the strip handling equipment 1 to rewind the strip 2 into a coil.

[0048] The strip 2 is guided through the strip processing equipment 1 by conveyor rollers 3. Each conveyor roller 3 may comprise multiple individual rollers, which form the support and conveying surface of the strip 2. The strip 2, based on its geometry, tends to extend laterally from the conveyor rollers 3, particularly the deflection rollers, i.e., transversely to the conveying direction. Strip running control devices 4, 5, and 6 are used to ensure the position of the strip 2 on the conveyor rollers 3. In particular, the strip running control devices 4, 5, and 6 hold the strip in the middle transversely to the conveying direction on the conveyor rollers 3 or in another fixed transversely to the conveying direction.

[0049] The strip running control devices 4, 5, and 6 respectively include a sensor for determining the transverse position of the strip 2 to the conveying direction and an actuator for adjusting the transverse position of the strip 2 to the conveying direction.

[0050] The sensor detects, for example, one or both lateral edges of strip 2. Furthermore, inductive measurement frames or image sensors, including image evaluation, are known in the prior art.

[0051] The actuator is, for example, a rotatable roller that transmits a velocity component transverse to the main conveying direction to the strip 2.

[0052] Figure 1 The strip processing equipment 1 in the invention implements a method according to the invention for operating the strip processing equipment 1 to process strip 2, particularly metal strip or rolled material, the method comprising the following steps:

[0053] The position of the strip 2 transverse to the conveying direction is detected by means of sensors, especially the sensors of the strip operation control devices 4, 5, and 6 of the strip processing equipment 1;

[0054] The characteristics of the strip 2 are identified by sensors, which affect the transverse position of the strip 2 in the conveying direction;

[0055] Assign the identified characteristics of strip 2 to the corresponding points or sections of strip 2; and

[0056] At the downstream strip running control devices 5 and 6 along the conveying direction, the transverse position of the strip 2 to the conveying direction is actively adjusted based on the characteristics of the corresponding points or sections of the strip 2 identified by the upstream sensors, especially by the upstream strip running control devices 4 and 5.

[0057] according to Figure 1 In this embodiment, the transverse position of the strip 2 to the conveying direction is detected by means of suitable sensors, particularly the sensors of the first strip running control device 4. The characteristics of the strip, which affect its transverse position to the conveying direction, are identified using sensor data. The identified characteristics of the strip are assigned to corresponding points or sections of the strip 2.

[0058] At the downstream strip operation control devices 5 and 6 along the conveying direction, i.e., from the second strip operation control device 5 to the nth strip operation control device 6, the transverse position of the strip 2 to the conveying direction can be actively adjusted based on the characteristics identified at the corresponding points or sections of the strip 2.

[0059] For this purpose, for example, the identified characteristics of corresponding points or sections of strip 2 are transferred from the first strip operation control device 4 to at least the second strip operation control device 5 located downstream along the conveying direction, and preferably to all downstream strip operation control devices 6. Alternatively or supplementarily, the identified characteristics of corresponding points and sections of strip 2 are transmitted from the strip operation control devices 4, 5, and 6 to the computing device 9. In order to convey strip 2 through strip handling equipment 1, and in particular, to convey strip 2 through the entire strip handling equipment 1, the computing device 9 optimizes the transverse position of strip 2 in the conveying direction based on the transmission characteristics of the corresponding points and sections.

[0060] This optimization is based, for example, on machine learning methods or simulation, specifically to minimize strip damage, avoid uneven processing by the strip handling equipment, minimize the width of the strip handling equipment, avoid damage to the strip handling equipment, especially to the conveying device and the strip operation control device, and avoid unnecessary downtime of the strip handling equipment due to breakage or similar optimization objectives.

[0061] Preferably, based on the optimization of the computing device 9, the transverse position of the strip 2 relative to the conveying direction is actively adjusted at the strip running control devices 5 and 6 located downstream along the conveying direction. Thus, at the downstream strip running control devices 5 and 6, the transverse position of the strip 2 optimized by the computing device 9 relative to the conveying direction is compared with the actual position of the corresponding point or section of the strip 2, and the actual transverse position of the strip 2 relative to the conveying direction is adjusted by the strip running control devices 5 and 6 if necessary. The identified deviation between the transverse position of the strip 2 optimized by the computing device 9 relative to the conveying direction and the actual position of the corresponding point or section of the strip 2 is fed back to the computing device 9 for further optimization.

[0062] According to the present invention, in order to improve the optimization of the position of the current strip 2 transverse to the conveying direction by the computing device 9, past optimizations regarding the processing of another strip 2 by the strip processing equipment 1 can be considered. In particular, the optimization algorithm can be trained based on past optimizations regarding the processing of another strip 2 by the strip processing equipment 1.

[0063] According to a preferred variant of the invention, the active adjustment of the transverse position of the strip 2 to the conveying direction at the downstream strip running control devices 5 and 6 takes into account the adjustments performed on the transverse position of the strip 2 to the conveying direction at the upstream strip running control devices 4 and 5. Therefore, the strip running control devices 4, 5, and 6 can transmit the adjustments performed on the transverse position of the strip 2 to the computing device 9, and the computing device 9 can take the transmitted adjustments into account when optimizing the transverse position.

[0064] According to a particularly advantageous variant, the method includes the following steps: when actively adjusting and / or optimizing the transverse position of the strip 2 in the conveying direction using a computing device 9, information and / or data from equipment located upstream of the strip handling equipment 1 are considered. This is particularly advantageous for the active adjustment and / or optimization of the transverse position of the strip in the conveying direction at a first strip operation control device 4 in the conveying direction of the strip handling equipment 1. The upstream equipment is selected, for example, from: hot rolling mills, cold rolling mills, pickling machines, welding machines, especially four-point sensors or quality monitoring systems of welding machines, uncoiling devices 7, or the like. Figure 1 In some embodiments, the information of the unwinding device 7 can be taken into account so that the information for actively adjusting the position of the strip 2 transverse to the conveying direction is already available at the first strip running control device 4.

[0065] The method according to the invention also determines the position of points or sections of strip 2 in strip processing equipment 1, particularly based on the tracking system of strip processing equipment 1.

[0066] The method according to the invention may further include the following steps: detecting the transverse position of the strip 2 between the two strip operation control devices 4, 5, and 6, and transmitting the detected position to the upstream strip operation control devices 4 and 5, the downstream strip operation control devices 5 and 6, and / or the computing device 9. For this purpose, it is preferable to use a separate sensor to detect the transverse position of the strip 2. In particular, such a sensor may be arranged at the beginning of the strip handling equipment 1 such that information for actively adjusting the transverse position of the strip 2 is already available at the first strip operation control device 4.

[0067] According to an advantageous embodiment of the invention, the distance between two sequentially connected strip running control devices 4, 5, 6 at the beginning of the strip processing equipment 1 is less than the distance between two sequentially connected strip running control devices 4, 5, 6 at the end of the strip processing equipment 1. In particular, the distance between two sequentially connected strip running control devices 4, 5, 6 increases along the conveying direction.

[0068] Advantageously, the method according to the invention can be performed continuously.

[0069] The method according to the invention further includes the step of considering information from the strip running control devices 4, 5, and 6, particularly current information regarding the adjustment of the transverse position of the strip 2 in the conveying direction. Information to be considered includes, for example, the current angle of attack of the conveyor rollers of the strip running control devices 4, 5, and 6, the alignment of components or the entire strip running control devices 4, 5, and 6, or similar information. This information is particularly considered when identifying characteristics of the strip 2 that affect the transverse position of the strip 2 in the conveying direction or the active adjustment of the transverse position of the strip 2 in the conveying direction.

[0070] In another variation of the invention, adjustments to the strip running control devices 4, 5, and 6 are considered when actively adjusting the transverse position of the strip 2 to the conveying direction. The characteristics of the strip running control devices 4, 5, and 6 can be changed, for example, through maintenance work or component replacement, or through wear over time (i.e., typically long-term changes).

[0071] List of reference numerals in the attached diagram:

[0072] 1. Strip processing equipment

[0073] 2. Strip

[0074] 3 Conveyor Rollers

[0075] 4 First strip running control device

[0076] 5. Second strip running control device

[0077] 6. nth strip operation control device

[0078] 7 Uncoiling machine

[0079] 8. Winding machine

[0080] 9. Computing device

Claims

1. A method for operating a strip processing device (1) for processing strip (2), in, The strip (2) is guided along the conveying direction by the conveying roller (3) through the strip processing equipment (1), and the strip processing equipment (1) includes at least two strip running control devices (4, 5, 6) sequentially along the conveying direction. The strip running control devices (4, 5, 6) are used to detect and adjust the transverse position of the strip (2) relative to the conveying direction. The method includes the following steps: The transverse position of the strip (2) to the conveying direction is detected by means of a sensor. The characteristics of the strip (2) are identified by the sensor, and these characteristics affect the transverse position of the strip (2) in the conveying direction. Assigning the identified characteristics of the strip (2) to the corresponding points or sections of the strip (2), and At the strip running control device (4, 5, 6) located downstream along the conveying direction, the position of the strip (2) transverse to the conveying direction is actively adjusted based on the characteristics of the corresponding point or section of the strip (2) identified by the upstream sensor.

2. The method according to claim 1, wherein, The sensor is a sensor of the strip operation control device (4, 5, 6) of the strip processing equipment (1).

3. The method according to claim 1, comprising transferring the identified characteristics of the corresponding points or sections of the strip (2) from an upstream strip operation control device (4, 5, 6) to a downstream strip operation control device (4, 5, 6) along the conveying direction.

4. The method according to claim 3, comprising transferring the identified characteristics of a corresponding point or section of the strip (2) from an upstream strip operation control device (4, 5, 6) to a plurality of downstream strip operation control devices (4, 5, 6) along the conveying direction.

5. The method according to any one of claims 1 to 4, comprising transmitting identified characteristics of corresponding points or segments of the strip (2) from the strip operation control device (4, 5, 6) to the computing device (9), wherein, The computing device (9) optimizes the position of the strip (2) transverse to the conveying direction of the strip (2) through the strip processing equipment (1) based on the characteristics of the corresponding point or section.

6. The method according to claim 5, wherein, The optimization is based on machine learning methods or simulation in order to minimize strip damage, avoid uneven strip processing of the strip processing equipment (1), minimize the width of the strip processing equipment (1), avoid damage to the conveying device and strip operation control device (4, 5, 6) of the strip processing equipment (1), and avoid unnecessary shutdown of the strip processing equipment (1) due to breakage or similar optimization objectives.

7. The method according to claim 5, wherein, Based on the optimization of the computing device (9), the position of the strip (2) transverse to the conveying direction is actively adjusted at the strip running control device (4, 5, 6) located downstream along the conveying direction.

8. The method according to claim 7, further comprising the following step: At the strip running control device (4, 5, 6), the position of the strip (2) in the transverse direction optimized by the computing device (9) is compared with the actual position of the corresponding point or section of the strip (2), and the actual position of the strip (2) in the transverse direction is adjusted by the strip running control device (4, 5, 6) as needed.

9. The method according to claim 8, comprising feeding back the deviation between the position of the strip (2) optimized by the computing device (9) transverse to the conveying direction and the actual position of the corresponding point or section of the strip (2) to the computing device (9) to improve the optimization.

10. The method according to claim 3 or 4, further comprising, when optimizing the position of the current strip (2) transverse to the conveying direction by means of the computing device (9), taking into account past optimizations regarding the processing of another strip (2) by means of the strip processing equipment (1).

11. The method of claim 10, comprising training an optimization algorithm based on past optimizations regarding the processing of another strip (2) through the strip processing equipment (1).

12. The method according to any one of claims 1 to 4, wherein, The active adjustment of the transverse position of the strip (2) to the conveying direction at the downstream strip operation control device (4, 5, 6) along the conveying direction takes into account the adjustment performed on the transverse position of the strip (2) to the conveying direction at the upstream strip operation control device (4, 5, 6).

13. The method according to claim 12, wherein, The strip running control device (4, 5, 6) transmits the adjustment performed on the position of the strip (2) in the transverse direction to the computing device (9), and the computing device (9) takes into account the transmitted adjustment when optimizing the position in the transverse direction.

14. The method according to any one of claims 1 to 4, further comprising the step of: When actively adjusting the position of the strip (2) transverse to the conveying direction and / or optimizing the position of the strip (2) transverse to the conveying direction by the computing device (9), information and / or data from the device located upstream of the strip processing equipment (1) are taken into consideration.

15. The method according to claim 14, further comprising the step of: taking into account information and / or data from a device located upstream of the strip processing equipment (1) in order to actively adjust and / or optimize the transverse position of the strip (2) to the conveying direction at a first strip operation control device (4) in the conveying direction of the strip processing equipment (1).

16. The method of claim 14, wherein, The upstream equipment is selected from: hot rolling mill, cold rolling mill, pickling machine, welding machine, and uncoiling device (7).

17. The method according to claim 16, wherein, The upstream equipment is selected from: hot rolling mill, cold rolling mill, pickling machine, welding machine four-point sensor or quality monitoring system, uncoiling device (7).

18. The method according to any one of claims 1 to 4, further comprising the following step: Determine the position of the point or section of the strip (2) in the strip processing equipment (1).

19. The method of claim 18, further comprising the step of: The tracking system of the strip processing equipment (1) determines the position of a point or section of the strip (2) in the strip processing equipment (1).

20. The method according to any one of claims 1 to 4, further comprising the following step: The transverse position of the strip (2) located between the two strip operation control devices (4, 5, 6) in the conveying direction is detected, and the detected position is transmitted to the upstream strip operation control device (4, 5, 6), the downstream strip operation control device (4, 5, 6) and / or the computing device (9).

21. The method according to any one of claims 1 to 4, wherein, The distance between two successive strip operation control devices (4, 5, 6) at the beginning of the strip processing equipment (1) is less than the distance between two successive strip operation control devices (4, 5, 6) at the end of the strip processing equipment (1), and the distance between the two successive strip operation control devices (4, 5, 6) increases along the conveying direction.

22. The method according to any one of claims 1 to 4, wherein, The method is executed continuously.

23. The method according to any one of claims 1 to 4, further comprising taking into account information from the strip running control device (4, 5, 6).

24. The method of claim 23 further includes taking into account current information regarding the adjustment of the position of the strip (2) transverse to the conveying direction.

25. The method according to any one of claims 1 to 4, wherein, The strip (2) is a metal strip or rolled material.

26. A control device for operating a strip processing device (1) for processing strip (2), in, The conveying roller (3) guides the strip (2) through the strip processing equipment (1) along the conveying direction, and the strip processing equipment (1) includes a plurality of strip running control devices (4, 5, 6) sequentially along the conveying direction. The strip running control devices (4, 5, 6) are used to detect and adjust the transverse position of the strip (2) relative to the conveying direction. Its features are, The control device is used to perform the method according to any one of claims 1 to 25.

27. The control device according to claim 26, wherein, The strip (2) is a metal strip or rolled material.

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