Edge tension on-line detection method, adjustment method and device for silicon steel strip

Abstract

The present application relates to the technical field of silicon steel strip processing, and specifically discloses a kind of edge tension on-line detection method, adjusting method and device of silicon steel strip, wherein the detection method includes the following steps: intermittently control two knock components to knock the edge of both sides of silicon steel strip to collect and obtain edge parameter information;Based on the preset conversion relationship, the edge parameter information of the edge of both sides of silicon steel strip is converted into tension information;Compare the consistency of the size of the tension information of the edge of both sides of silicon steel strip to obtain the tension symmetry result of silicon steel strip;The detection method sets knock component and data acquisition component on both sides of silicon steel strip, and carries out knocking, collection, conversion and comparison analysis, realizes the on-line detection of the edge tension of silicon steel strip, and can evaluate tension symmetry. Compared with artificial experience judgment, this method can provide objective and quantitative tension symmetry result, improve the accuracy and real-time performance of detection, help to adjust cold rolling process parameters in time, and ensure the product quality of silicon steel strip.

Description

Technical Field

[0001] This application relates to the field of silicon steel strip processing technology, and more specifically, to an online detection method, adjustment method, and apparatus for the edge tension of silicon steel strip. Background Technology

[0002] In the production process of silicon steel sheets, the cold rolling of raw silicon steel strip is a crucial step. Due to the uneven microstructure and composition distribution of raw silicon steel strip, cold rolling can easily lead to an imbalance in the transverse tension distribution of the strip due to differences in material deformation. This phenomenon can cause minor processing defects such as poor sheet shape and thickness fluctuations, or even more serious problems such as brittle fracture of the strip during continuous transport due to localized stress concentration, directly affecting the production yield.

[0003] Currently, to address this issue, the industry typically relies on operators' experience and feel to determine the size of the silicon steel strip and whether the tension on both sides is consistent. Based on the tension symmetry, the gap between the cold rolling rolls or the rolling force are adjusted. However, this method is highly dependent on the operator's personal skills and experience, and has problems such as delayed response, large subjective errors, and insufficient dynamic control capabilities.

[0004] There is currently no effective technical solution to the above problems. Summary of the Invention

[0005] The purpose of this application is to provide an online detection method, adjustment method and device for edge tension of silicon steel strip, so as to achieve objective and quantitative tension symmetry analysis and improve the accuracy and real-time performance of edge tension detection.

[0006] In a first aspect, this application provides an online detection method for edge tension of silicon steel strip, which is applied in a silicon steel strip cold rolling equipment. The silicon steel strip cold rolling equipment is symmetrically provided with two striking components located behind the roll assembly and on both sides of the silicon steel strip. The striking components are provided with data acquisition components. The striking components are used to strike the edge of the silicon steel strip so that the data acquisition components collect edge parameter information characterizing the tension of the silicon steel strip.

[0007] The detection method includes the following steps:

[0008] S1. Intermittently control the two striking components to strike the two sides of the silicon steel strip so that the data acquisition component can collect and obtain edge parameter information;

[0009] S2. Based on the preset conversion relationship, convert the edge parameter information of both sides of the silicon steel strip into tension information;

[0010] S3. Compare the consistency of the tension information on both sides of the silicon steel strip to obtain the tension symmetry result of the silicon steel strip.

[0011] The online edge tension detection method for silicon steel strip disclosed in this application achieves online detection of the edge tension of silicon steel strip by setting up a striking component and a data acquisition component on both sides of the silicon steel strip, and performing striking, data acquisition, conversion, and comparative analysis. It can also assess tension symmetry. Compared with manual judgment based on experience, this method provides objective and quantitative results of tension symmetry, improving the accuracy and real-time performance of the detection. This helps to adjust cold rolling process parameters in a timely manner and ensure the product quality of the silicon steel strip.

[0012] The online edge tension detection method for silicon steel strip, wherein when the edge parameter information includes reaction force information, the data acquisition component includes a piezoelectric sensor, which is installed at the end of the striking component to collect reaction force information.

[0013] As a force sensor, a piezoelectric sensor can convert mechanical force into an electrical signal, enabling the quantitative acquisition of reaction force information. By acquiring this reaction force information, the magnitude of the edge tension of the silicon steel strip can be indirectly reflected.

[0014] The online edge tension detection method for silicon steel strip, wherein when the edge parameter information includes sound information, step S1 controls the two striking components to strike separately at staggered times; when the edge parameter information does not include sound information, step S1 controls the two striking components to strike synchronously.

[0015] The online edge tension detection method for silicon steel strip includes a striking assembly comprising a mounting bracket, a limiting sleeve, a striking rod, and a driving assembly. The limiting sleeve is hinged to the mounting bracket at its middle portion and has a limiting groove at one end. One end of the striking rod is hinged to the limiting groove, and the other end is used to strike the edge of the silicon steel strip. The limiting groove limits the swing range of the striking rod on the limiting sleeve. The driving assembly is mounted on the mounting bracket and connected to the other end of the limiting sleeve, and is used to drive the limiting sleeve to swing.

[0016] The online edge tension detection method for silicon steel strip, wherein step S1, the process of controlling the striking component to strike the edge of the silicon steel strip includes:

[0017] A1. Based on the first preset driving parameters, the driving component is controlled to drive the limiting sleeve to swing to the target position, so that the striking rod continues to swing relative to the limiting sleeve based on inertia after the limiting sleeve swings to the target position to strike the edge of the silicon steel strip.

[0018] The online edge tension detection method for silicon steel strip, wherein step S1, the process of controlling the striking component to strike the edge of the silicon steel strip, further includes:

[0019] A2. Based on the data acquisition component, monitor online whether the striking rod strikes the edge of the silicon steel strip, and after the striking rod strikes the edge of the silicon steel strip, control the driving component to drive the limit sleeve rod to retract based on the second preset driving parameters.

[0020] Secondly, this application also provides an online edge tension detection device for silicon steel strip, which is used in a silicon steel strip cold rolling equipment. The silicon steel strip cold rolling equipment is symmetrically provided with two striking components located behind the roll assembly and on both sides of the silicon steel strip. The striking components are provided with data acquisition components. The striking components are used to strike the edge of the silicon steel strip so that the data acquisition components can collect edge parameter information that characterizes the tension of the silicon steel strip.

[0021] The detection device includes:

[0022] The acquisition module is used to intermittently control the two striking components to strike the two sides of the silicon steel strip so that the data acquisition component can acquire edge parameter information;

[0023] The conversion module is used to convert the edge parameter information of both sides of the silicon steel strip into tension information based on a preset conversion relationship;

[0024] The detection module is used to compare the consistency of the tension information on both sides of the silicon steel strip to obtain the tension symmetry result of the silicon steel strip.

[0025] The online edge tension detection device for silicon steel strip disclosed in this application achieves online detection of the edge tension of silicon steel strip by setting up a striking component and a data acquisition component on both sides of the silicon steel strip, and performing striking, data acquisition, conversion, and comparative analysis. It can also assess the tension symmetry. Compared with manual judgment, this device can provide objective and quantitative tension symmetry results, improving the accuracy and real-time performance of the detection, which helps to adjust cold rolling process parameters in a timely manner and ensure the product quality of silicon steel strip.

[0026] Thirdly, this application also provides a method for online adjustment of edge tension of silicon steel strip, which is applied in a silicon steel strip cold rolling equipment, wherein the roll assembly of the silicon steel strip cold rolling equipment includes a roll shifting group;

[0027] The adjustment method includes the following steps:

[0028] B1. Based on the online edge tension detection method of silicon steel strip provided in the first aspect, the tension symmetry result is obtained, wherein the tension symmetry result includes the direction of tension deviation and the degree of tension deviation;

[0029] B2. When the tension deviation exceeds a preset threshold, an adjustment parameter is generated based on the direction and degree of tension deviation.

[0030] B3. Control the movement of the roller group according to the adjustment parameters to adjust the edge tension of the silicon steel strip.

[0031] The online edge tension adjustment method for silicon steel strip in this application obtains tension symmetry results, including the direction and degree of tension deviation, through a tapping component and a data acquisition component. When the degree of tension deviation exceeds a preset threshold, appropriate adjustment parameters are generated to control the movement of the roller group to adjust the edge tension of the silicon steel strip. This achieves adaptive online adjustment of the edge tension of the silicon steel strip, which has the advantages of high reliability and objectivity, ensuring the timeliness of cold rolling process adjustment and guaranteeing the product quality of silicon steel strip.

[0032] The method for online adjustment of edge tension of silicon steel strip includes a roll assembly comprising an upper work roll and a lower work roll, and a roll shifting group comprising an upper shifting roll and a lower shifting roll. The roll surfaces of the upper and lower shifting rolls are conical and contract in opposite directions. The upper shifting roll is driven by a first horizontal drive assembly to adjust its overlap with the upper work roll in the top view to adjust the tension of one edge of the silicon steel strip. The lower shifting roll is driven by a second horizontal drive assembly to adjust its overlap with the lower work roll in the top view to adjust the tension of the other edge of the silicon steel strip.

[0033] The tapered roll surfaces of the upper and lower rollers are designed to face opposite directions. Therefore, when the upper roller moves horizontally in a certain direction, its overlapping area with the upper work roll changes, causing an adjustment in the rolling force acting on one edge of the silicon steel strip, thereby regulating the tension at that edge. The horizontal movement and tension adjustment principle of the lower roller is the same as that of the upper roller. By independently controlling the horizontal displacement of the upper and lower rollers through two horizontal drive components, the tension at both edges of the silicon steel strip can be adjusted separately.

[0034] Fourthly, this application also provides an online edge tension adjustment device for silicon steel strip, which is used in a silicon steel strip cold rolling mill, wherein the roll assembly of the silicon steel strip cold rolling mill includes a roll shifting group;

[0035] The adjustment device includes:

[0036] An analysis module is used to obtain tension symmetry results based on the online edge tension detection method of silicon steel strip provided in the first aspect, wherein the tension symmetry results include the direction of tension deviation and the degree of tension deviation;

[0037] The generation module is used to generate adjustment parameters based on the direction and degree of tension deviation when the tension deviation exceeds a preset threshold.

[0038] An adjustment module is used to control the movement of the roller group according to the adjustment parameters to adjust the edge tension of the silicon steel strip.

[0039] The edge tension online adjustment device for silicon steel strip of this application realizes the adaptive online adjustment of edge tension of silicon steel strip, which has the advantages of high reliability and high objectivity, ensuring the timeliness of cold rolling process adjustment and guaranteeing the product quality of silicon steel strip.

[0040] As described above, this application provides an online detection method, adjustment method, and apparatus for the edge tension of silicon steel strip. The detection method involves setting up a striking component and a data acquisition component on both sides of the silicon steel strip, and performing striking, data acquisition, conversion, and comparative analysis to achieve online detection of the edge tension of the silicon steel strip and assess tension symmetry. Compared with manual judgment based on experience, this method provides objective and quantitative results of tension symmetry, improving the accuracy and real-time performance of the detection. This helps to adjust cold rolling process parameters in a timely manner and ensure the product quality of the silicon steel strip. Attached Figure Description

[0041] Figure 1 A flowchart of an online edge tension detection method for silicon steel strip provided in an embodiment of this application.

[0042] Figure 2 This is a schematic diagram of the assembly structure of the striking component, the data acquisition component, and the roll assembly.

[0043] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0044] Figure 4 A schematic diagram illustrating the process of striking the edge of a silicon steel sheet to form a striking component.

[0045] Figure 5 This is a schematic diagram of the online edge tension detection device for silicon steel strip provided in this application embodiment.

[0046] Figure 6 A flowchart illustrating the online adjustment method for the edge tension of silicon steel strip provided in this application embodiment.

[0047] Figure 7 This is a schematic diagram of the lateral structure of the roll assembly.

[0048] Figure 8 This is a schematic diagram of the working structure of the upper working roll, lower working roll, upper sliding roll, and lower sliding roll.

[0049] Figure 9 This is a schematic diagram of the online edge tension adjustment device for silicon steel strip provided in an embodiment of this application.

[0050] Reference numerals: 1. Roll assembly; 2. Striking assembly; 3. Data acquisition assembly; 11. Upper work roll; 12. Lower work roll; 13. Upper skew roll; 14. Lower skew roll; 21. Mounting bracket; 22. Limiting sleeve; 23. Striking rod; 24. Drive assembly; 201. Acquisition module; 202. Conversion module; 203. Detection module; 401. Analysis module; 402. Generation module; 403. Adjustment module. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0052] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] Firstly, please refer to Figures 1-4 This application provides an online detection method for edge tension of silicon steel strip in some embodiments, which is applied in a silicon steel strip cold rolling equipment. The silicon steel strip cold rolling equipment is symmetrically provided with two striking components 2 located behind the roll assembly 1 and on both sides of the silicon steel strip. The striking components 2 are provided with data acquisition components 3. The striking components 2 are used to strike the edge of the silicon steel strip so that the data acquisition components 3 can collect edge parameter information that characterizes the tension of the silicon steel strip.

[0054] The detection method includes the following steps:

[0055] S1. Intermittent control: Two striking components 2 strike the edges of the silicon steel strip on both sides so that the data acquisition component 3 can collect and obtain edge parameter information;

[0056] S2. Based on the preset conversion relationship, convert the edge parameter information of both sides of the silicon steel strip into tension information;

[0057] S3. Compare the consistency of the tension information on both sides of the silicon steel strip to obtain the tension symmetry result of the silicon steel strip.

[0058] Specifically, two striking components 2 are symmetrically arranged at the exit end of the silicon steel strip cold rolling equipment. The two striking components 2 are located behind the roll assembly 1 (i.e., on the side where the roll assembly 1 outputs the rolled silicon steel strip), and are located on both sides of the silicon steel strip. Each striking component 2 is equipped with a data acquisition component 3. During operation, the striking component 2 strikes the edge of the silicon steel strip, and the data acquisition component 3 then collects edge parameter information that can represent the tension of the silicon steel strip.

[0059] More specifically, the roll assembly 1 is a processing component in the silicon steel strip cold rolling equipment used for continuous cold rolling of silicon steel strip. It can be an existing roll assembly 1, which will not be described in detail here.

[0060] More specifically, step S1 employs intermittent control to enable online detection without continuously affecting the production process, allowing for continuous tension detection throughout the entire production process.

[0061] More specifically, step S2, based on a preset conversion relationship, transforms the collected edge parameter information into tension information, realizing the conversion from measurable physical quantities to tension information. The tension information can be a specific tension value or a measure representing the magnitude of tension; its specific type is related to the conversion relationship used, which can be obtained through experimental calibration or theoretical analysis.

[0062] More specifically, step S3 obtains the tension symmetry result of the silicon steel strip by comparing the consistency of the tension information on both sides of the edge obtained in step S2. This comparison process can be achieved by calculating the difference or ratio of the tension information on both sides. This tension symmetry result indicates whether the tension symmetry of the silicon steel strip is good.

[0063] The online edge tension detection method for silicon steel strip in this application embodiment achieves online detection of the edge tension of the silicon steel strip by setting a striking component 2 and a data acquisition component 3 on both sides of the silicon steel strip, and performing striking, data acquisition, conversion, and comparative analysis. It can also assess tension symmetry. Compared with manual judgment, this method provides objective and quantitative tension symmetry results, improving the accuracy and real-time performance of the detection, which helps to adjust cold rolling process parameters in a timely manner and ensure the product quality of the silicon steel strip.

[0064] In some preferred embodiments, the edge parameter information includes one or more of the following: reaction force information, sound information, or rebound amplitude information.

[0065] In some preferred embodiments, such as Figure 3 As shown, when the edge parameter information includes reaction force information, the data acquisition component 3 includes a piezoelectric sensor, which is installed at the end of the striking component 2 to collect reaction force information.

[0066] Specifically, a piezoelectric sensor is mounted at the end of the striking assembly 2 to directly sense the reaction force generated when the edge of the silicon steel strip is struck. This mounting position ensures that the sensor can accurately capture the force information at the moment of impact. As a force sensor, the piezoelectric sensor can convert mechanical force into an electrical signal, enabling the quantitative acquisition of reaction force information. By collecting the reaction force information, the magnitude of the edge tension of the silicon steel strip can be indirectly reflected.

[0067] More specifically, the striking component 2 strikes the edge of the silicon steel strip, generating a reaction force. This reaction force is transmitted to the piezoelectric sensor via the striking component 2. The piezoelectric sensor, installed at the end of the striking component 2, collects the reaction force information in real time. The magnitude of this reaction force is related to the tension at the edge of the silicon steel strip; the greater the tension, the greater the reaction force generated during striking. The data acquisition component 3 converts the collected reaction force information into an electrical signal output, providing a data basis for subsequent silicon steel strip tension analysis. This achieves online detection of the edge tension of the silicon steel strip.

[0068] More specifically, a ceramic piezoelectric sensor can be selected as the piezoelectric sensor. Ceramic piezoelectric sensors are characterized by high sensitivity and fast response speed. The piezoelectric sensor is fixed to the center of the end face of the striking assembly 2 using screws, ensuring a reliable connection between the piezoelectric sensor and the striking assembly 2, allowing the piezoelectric sensor to accurately collect the reaction force transmitted by the striking assembly 2. When the striking assembly 2 strikes the edge of the silicon steel strip, the reaction force acts directly on the piezoelectric sensor, which generates a voltage signal proportional to the reaction force. This voltage signal is transmitted to the data processing unit for subsequent tension calculation and analysis.

[0069] In some preferred embodiments, when the edge parameter information includes sound information, the data acquisition component 3 includes an electronic stethoscope disposed on one side of the tapping component 2.

[0070] Specifically, the electronic stethoscope is placed near the striking component 2 to capture the sound waves generated when the striking component 2 strikes the edge of the silicon steel strip. By analyzing the characteristic parameters such as the frequency and intensity of the sound waves, sound information characterizing the tension can be obtained.

[0071] In some preferred embodiments, when the edge parameter information includes rebound amplitude information, the data acquisition component 3 includes a camera located on one side of the striking component 2 or an acceleration sensor located on the striking component 2.

[0072] Specifically, the camera is used to capture the action process of the striking component 2 striking the edge of the silicon steel strip. By analyzing the image, the amplitude of the rebound of the striking component 2 after striking the edge of the silicon steel strip can be obtained, and the rebound amplitude information can be determined. In this case, the rebound amplitude information can be the reaction angle or the reaction distance, etc.

[0073] More specifically, the accelerometer is installed at the edge of the silicon steel strip or at the contact point between the striking assembly 2 and the edge of the silicon steel strip, and is used to measure the instantaneous acceleration generated at the edge of the silicon steel strip after the strike as information on the rebound amplitude.

[0074] More specifically, the magnitude of the rebound amplitude information is related to the tension of the silicon steel strip edge. Since the silicon steel strip is under appropriate tension during transmission, its tension remains in the elastic zone and does not exceed its yield strength. Therefore, under this condition, the greater the tension of the silicon steel strip edge, the greater the rebound amplitude information generated when struck.

[0075] Therefore, reaction force information, sound information, or rebound amplitude information can all effectively characterize the tension magnitude. In practical applications, the online edge tension detection method for silicon steel strips in this application embodiment can select one or more of these methods to calculate and obtain tension information. When using more than one type of data to calculate tension information, preliminary tension information can be calculated based on the conversion relationships corresponding to different data types, and then the average of these preliminary tension information is calculated as the tension information, which can further improve the accuracy of tension information calculation. In another embodiment, a pre-trained deep model can also be used as a conversion relationship to input the features composed of these data to generate tension information. In other embodiments, preliminary tension information can be calculated based on the conversion relationships corresponding to different data types, and then these preliminary tension information are compared to remove preliminary tension information with large differences before selecting suitable tension information. This method of integrating multiple parameter information acquisition can improve the robustness and reliability of the tension detection system. Even when a single parameter information is disturbed, it can still accurately determine the tension state by comprehensively considering other parameter information.

[0076] In some preferred embodiments, the preset conversion relationship is a pre-constructed mapping table of edge parameter information and tension information. The mapping table includes multiple numerical ranges of edge parameter information, and each numerical range has a corresponding tension level as tension information.

[0077] Specifically, this implementation method can conveniently obtain the tension information of the silicon steel strip edge through a mapping table. Using the tension level, the tension strength relationship can be conveniently evaluated with dimensionless data. This simplifies step S3 to comparing whether the tension levels of the two sides of the silicon steel strip are consistent and determining the tension level difference when they are inconsistent to obtain the tension symmetry result of the silicon steel strip. This can further simplify the tension symmetry analysis process and quantify the adjustment level of the subsequent adjustment process.

[0078] In some preferred embodiments, when the edge parameter information includes sound information, step S1 controls the two striking components 2 to strike separately at staggered times; when the edge parameter information does not include sound information, step S1 controls the two striking components 2 to strike synchronously.

[0079] Specifically, step S1 employs two different control methods depending on whether the edge parameter information includes sound information. When the edge parameter information includes sound information, the striking actions of the two striking components 2 are staggered in time; that is, the other striking component 2 only begins operation after one striking component 2 has completed its striking and data acquisition. This staggered timing control avoids mutual interference of sound information generated when the two striking components 2 simultaneously strike the edge of the silicon steel strip. The striking actions of the two striking components 2 alternate, effectively preventing sound information aliasing and ensuring the accuracy and reliability of sound information acquisition. When the edge parameter information does not include sound information, for example, when the edge parameter information is only reaction force information or rebound amplitude information, step S1 synchronously controls the two striking components 2 to strike. Synchronous striking means that the two striking components 2 strike both sides of the silicon steel strip simultaneously or nearly simultaneously. Since the edge parameter information does not include sound information at this time, synchronous striking will not cause information interference problems. Furthermore, synchronous striking can improve detection efficiency, shorten detection time, and ensure that the data sampling points are symmetrical in both time and space, thereby further improving the accuracy of tension symmetry assessment.

[0080] In some preferred embodiments, such as Figure 3 As shown, the striking assembly 2 includes a mounting bracket 21, a limiting sleeve 22, a striking rod 23, and a driving assembly 24. The limiting sleeve 22 is hinged to the mounting bracket 21 in the middle, and has a limiting groove at one end. One end of the striking rod 23 is hinged to the limiting groove, and the other end is used to strike the edge of the silicon steel strip. The limiting groove is used to limit the swing range of the striking rod 23 on the limiting sleeve 22. The driving assembly 24 is mounted on the mounting bracket 21 and connected to the other end of the limiting sleeve 22, and is used to drive the limiting sleeve 22 to swing.

[0081] Specifically, the mounting bracket 21 serves as the support structure for the striking assembly 2, providing a mounting base for the entire assembly. It can be fixed to the frame of the silicon steel strip cold rolling equipment. The limiting sleeve 22 is mounted on the mounting bracket 21 via a central hinge, allowing it to swing around the hinge point. One end of the limiting sleeve 22 has a limiting groove, and one end of the striking rod 23 is hinged inside this groove. The other end of the striking rod 23 is used to directly strike the edge of the silicon steel strip. The limiting groove is designed to limit the swing amplitude of the striking rod 23 on the limiting sleeve 22, ensuring the controllability of the striking action. It also provides the striking rod 23 with a certain amount of rebound space after striking the edge of the silicon steel strip, ensuring that the data acquisition assembly 3 can successfully acquire edge parameter information. Thus, by driving the limiting sleeve 22 to swing through the driving assembly 24, the limiting sleeve 22 drives the striking rod 23 to move through the limiting groove, ultimately achieving the striking action of the striking rod 23 on the edge of the silicon steel strip.

[0082] More specifically, the drive assembly 24 can be a linear drive assembly 24 such as an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder, with its cylinder body hinged to the mounting bracket 21, driving the limit sleeve 22 to swing through piston extension and retraction; in this embodiment, the drive assembly 24 is preferably an electric cylinder to precisely control the swing amplitude and speed of the limit sleeve 22, ensuring the consistency of the striking force of the striking rod 23, thereby improving the analysis accuracy of the tension symmetry results.

[0083] More specifically, during the edge tension detection of the silicon steel strip, after receiving the control signal, the drive assembly 24 drives the limiting sleeve 22 to swing around the hinge point to a preset angle. During the swing of the limiting sleeve 22, the limiting groove constrains the movement trajectory of the striking rod 23, causing the striking rod 23 to perform a striking action within a predetermined swing range. Under inertia, the striking rod 23 strikes the edge of the silicon steel strip, generating edge parameters characterizing tension information. The data acquisition assembly 3 collects these parameters for subsequent tension analysis. Through the synergistic effect of the limiting sleeve 22, the limiting groove, and the hinge structure, the striking assembly 2 achieves effective, stable, and controllable striking of the silicon steel strip edge. This structural design ensures the accuracy of the striking force and position, and improves the reliability of edge parameter information acquisition.

[0084] More specifically, the limiting sleeve 22 is made of high-strength alloy steel to ensure it is not easily deformed during frequent striking. The limiting groove is designed as an arc-shaped groove to match the hinge end of the striking rod 23, reducing movement resistance and improving striking flexibility. The striking rod 23 can be made of hard alloy to improve wear resistance and striking life. The striking end of the striking rod 23 can be equipped with a rubber head or nylon head or other cushioning components to reduce damage to the surface of the silicon steel strip while ensuring striking effect.

[0085] In some preferred embodiments, such as Figure 4 As shown, in step S1, the process of controlling the striking component 2 to strike the edge of the silicon steel strip includes:

[0086] A1. Based on the first preset driving parameters, the control drive assembly 24 drives the limiting sleeve 22 to swing to the target position, so that the striking rod 23 continues to swing relative to the limiting sleeve 22 based on inertia after the limiting sleeve 22 swings to the target position to strike the edge of the silicon steel strip.

[0087] Specifically, the aforementioned striking process includes two motion phases. The first phase includes: under the control of a first preset driving parameter, the driving component 24 drives the limiting sleeve 22 to swing to a predetermined target position. The second phase includes: after the limiting sleeve 22 reaches the target position, the striking rod 23 continues to swing relative to the limiting sleeve 22 using its own inertia, striking the edge of the silicon steel strip. The first phase is the preparatory phase for the striking action, and the second phase is the execution phase of the striking action based on inertia. The first preset driving parameter can be a parameter such as voltage, current, or pulse signal controlling the operation of the driving component 24. The target position is a preset angle or position within the swing stroke of the limiting sleeve 22. The first phase provides a suitable speed for the striking rod 23, so that in the second phase, the striking rod 23, under the action of inertia, swings relative to the limiting sleeve 22 based on this speed and strikes the edge of the silicon steel strip.

[0088] More specifically, at the end of the first stage, because the limiting groove provides more swing space for the striking rod 23, the stopping movement of the limiting sleeve 22 will not immediately stop the movement of the striking rod 23. Due to inertia, the striking rod 23 will continue to swing forward beyond the target position of the limiting sleeve 22 and strike the edge of the silicon steel strip. This embodiment controls the movement of the limiting sleeve 22 by controlling the first preset driving parameter, which can indirectly control the striking force and striking position of the striking rod 23, thus achieving precise control of the striking action.

[0089] More specifically, in some embodiments, the drive assembly 24 is an electric cylinder driven by a stepper motor. The first preset drive parameter is the number and frequency of pulses controlling the operation of the stepper motor. Step A1 sends out the first preset drive parameter. After receiving the pulse signal, the stepper motor drives the limiting sleeve 22 to swing to the target position. The size of the limiting groove is designed to allow the striking rod 23 to continue swinging beyond the target position of the limiting sleeve 22 under inertia, ensuring that the striking rod 23 can effectively strike the edge of the silicon steel strip and provide a stable striking force. This avoids the limiting sleeve 22 restricting the rebound behavior of the striking rod 23 after striking the edge of the silicon steel strip, ensuring the accuracy and effectiveness of the collected edge parameter information.

[0090] In some preferred embodiments, such as Figure 4 As shown, in step S1, the process of controlling the striking component 2 to strike the edge of the silicon steel strip also includes:

[0091] A2. Based on the data acquisition component 3, monitor online whether the striking rod 23 strikes the edge of the silicon steel strip, and after the striking rod 23 strikes the edge of the silicon steel strip, control the driving component 24 to drive the limit sleeve 22 to retract based on the second preset driving parameters.

[0092] Specifically, in this embodiment, the data acquisition component 3 is also used to monitor whether the striking rod 23 strikes the edge of the silicon steel strip, so as to determine whether the striking rod 23 has completed the action of striking the edge of the silicon steel strip. In actual use, it can be determined whether the striking rod 23 has struck the edge of the silicon steel strip by monitoring whether edge parameter information is collected.

[0093] More specifically, after the striking rod 23 strikes the edge of the silicon steel strip, the limiting sleeve 22 performs a retraction action. The purpose of the retraction action is to prevent the striking rod 23 from continuously remaining in the striking position and then causing multiple strikes due to gravity, thus avoiding interference with the data acquisition process, especially suitable for the collection of sound information.

[0094] More specifically, the second preset driving parameter may be different from the first preset driving parameter. It may be a parameter such as voltage, current or pulse signal that controls the operation of the driving component 24, used to control the retraction speed and retraction distance of the limit sleeve 22, so as to ensure that the limit sleeve 22 can return to the predetermined position accurately and in a timely manner.

[0095] In some preferred embodiments, a gasket (not shown in the figure) is provided in the limiting groove.

[0096] Specifically, the shim in the limiting groove can effectively prevent the striking rod 23 from being damaged by collision with the limiting sleeve 22 during striking and retraction, thereby ensuring the integrity of the striking rod 23 and making the edge parameter information generated by the striking rod 23 reliable even after long-term use.

[0097] Secondly, please refer to Figure 5 This application also provides an online edge tension detection device for silicon steel strip, which is used in a silicon steel strip cold rolling equipment. The silicon steel strip cold rolling equipment is symmetrically provided with two striking components 2 located behind the roll assembly 1 and on both sides of the silicon steel strip. The striking components 2 are provided with a data acquisition component 3. The striking components 2 are used to strike the edge of the silicon steel strip so that the data acquisition component 3 can collect edge parameter information that characterizes the tension of the silicon steel strip.

[0098] The detection device includes:

[0099] The acquisition module 201 is used to intermittently control the two striking components 2 to strike the two sides of the silicon steel strip so that the data acquisition component 3 can acquire edge parameter information.

[0100] The conversion module 202 is used to convert the edge parameter information of both sides of the silicon steel strip into tension information based on a preset conversion relationship;

[0101] The detection module 203 is used to compare the consistency of the tension information on both sides of the silicon steel strip to obtain the tension symmetry result of the silicon steel strip.

[0102] The online edge tension detection device for silicon steel strip in this embodiment of the application achieves online detection of the edge tension of silicon steel strip by setting a striking component 2 and a data acquisition component 3 on both sides of the silicon steel strip, and performing striking, data acquisition, conversion, and comparative analysis. It can also assess tension symmetry. Compared with manual judgment, this device can provide objective and quantitative tension symmetry results, improving the accuracy and real-time performance of the detection, which helps to adjust cold rolling process parameters in a timely manner and ensure the product quality of silicon steel strip.

[0103] In some preferred embodiments, the online edge tension detection device for silicon steel strip in this application is used to perform the online edge tension detection method for silicon steel strip provided in the first aspect above.

[0104] Thirdly, please refer to Figures 6-8 Some embodiments of this application also provide a method for online adjustment of edge tension of silicon steel strip, which is applied in a silicon steel strip cold rolling equipment. The roll assembly 1 of the silicon steel strip cold rolling equipment includes a set of shifting rolls.

[0105] The adjustment method includes the following steps:

[0106] B1. Based on the online edge tension detection method of silicon steel strip provided in the first aspect, the tension symmetry result is obtained, including the tension deviation direction and the tension deviation degree;

[0107] B2. When the tension deviation exceeds the preset threshold, adjustment parameters are generated based on the direction and degree of tension deviation.

[0108] B3. Adjust the edge tension of the silicon steel strip by controlling the movement of the roller group according to the adjustment parameters.

[0109] Specifically, step B1 uses a detection method to obtain tension symmetry results, providing data support for adjustments. The detection method collects edge parameter information by tapping the edge of the silicon steel strip, converts the edge parameter information into tension information, and compares the tension information on both sides of the silicon steel strip to obtain tension symmetry results. The tension symmetry results reflect the direction and degree of tension deviation.

[0110] More specifically, step B2 generates adjustment parameters when the tension deviation exceeds a threshold, quantifying the adjustment requirement so that subsequent adjustments can be made based on these parameters. Step B3 controls the movement of the roller group according to the adjustment parameters, directly affecting the edge tension of the silicon steel strip to achieve edge tension adjustment.

[0111] More specifically, the adjustment parameters are used to control the movement of the shifting roller assembly. The shifting roller assembly receives the adjustment parameters and controls the displacement of the shifting rollers. Through the interaction between the shifting rollers and the work rollers, the stress state on both sides of the silicon steel strip is changed, thereby adjusting the edge tension of the silicon steel strip to make the edge tension of the silicon steel strip tend to be symmetrical. Thus, online automatic adjustment of the edge tension of the silicon steel strip is achieved.

[0112] More specifically, the movement of the shunting roll group changes the roll gap shape between the shunting roll and the work roll, thereby changing the rolling force on the edge of the silicon steel strip and adjusting the edge tension of the silicon steel strip.

[0113] More specifically, in some embodiments, the tension symmetry result obtained in step B1 is the difference between two tension information pieces, where the positive or negative value of the data represents the direction of tension deviation, and the absolute value of the data represents the degree of tension deviation. In other embodiments, the tension information is the tension level determined based on the aforementioned mapping table, and the tension symmetry result obtained in step B1 is the difference between two tension levels, where the positive or negative value of the data represents the direction of tension deviation, and the absolute value of the data represents the degree of tension deviation. In the embodiments of this application, the latter is preferred, so that step B2 can directly match the preset adjustment parameters based on the difference in tension levels.

[0114] The online edge tension adjustment method for silicon steel strip in this embodiment obtains tension symmetry results, including the direction and degree of tension deviation, through the tapping component 2 and the data acquisition component 3. When the degree of tension deviation is greater than a preset threshold, appropriate adjustment parameters are generated to control the movement of the roller group to adjust the edge tension of the silicon steel strip. This achieves adaptive online adjustment of the edge tension of the silicon steel strip, which has the advantages of high reliability and objectivity, ensuring the timeliness of cold rolling process adjustment and guaranteeing the product quality of silicon steel strip.

[0115] In some preferred embodiments, the adjustment method further includes the following steps:

[0116] B4. Obtain new tension symmetry results to verify whether the edge tension of the silicon steel strip is properly adjusted.

[0117] Specifically, step B4 aims to verify whether the edge tension of the silicon steel strip has been adjusted correctly. It obtains the adjusted tension symmetry result through data acquisition and calculation to determine whether the edge tension of the silicon steel strip has reached the expected symmetrical state. If so, the adjustment process ends; otherwise, it returns to step B2 based on the new tension symmetry result. This achieves closed-loop control of the edge tension of the silicon steel strip, effectively improving the accuracy and reliability of tension adjustment, and enabling the adjustment method to more accurately adjust the edge tension of the silicon steel strip to the ideal state.

[0118] In some preferred embodiments, such as Figure 8As shown, the roll assembly 1 also includes an upper work roll 11 and a lower work roll 12. The roll shifting group includes an upper shifting roll 13 and a lower shifting roll 14. The roll surfaces of the upper shifting roll 13 and the lower shifting roll 14 are both conical and contracted, and the contraction directions are opposite. The upper shifting roll 13 is driven by a first horizontal drive assembly (not shown) to adjust its degree of overlap with the upper work roll 11 in the top view direction to adjust the tension of one edge of the silicon steel strip. The lower shifting roll 14 is driven by a second horizontal drive assembly (not shown) to adjust its degree of overlap with the lower work roll 12 in the top view direction to adjust the tension of the other edge of the silicon steel strip.

[0119] Specifically, the conical roll surfaces of the upper roller 13 and the lower roller 14 are designed to face opposite directions. Therefore, when the upper roller 13 moves horizontally, its overlapping area with the upper work roll 11 changes, causing an adjustment in the rolling force acting on one edge of the silicon steel strip, thereby regulating the tension at that edge. The horizontal movement and tension adjustment principle of the lower roller 14 is the same as that of the upper roller 13. By independently controlling the horizontal displacement of the upper roller 13 and the lower roller 14 through two horizontal drive components, the tension at both edges of the silicon steel strip can be adjusted separately.

[0120] More specifically, in a preferred embodiment, the first and second horizontal drive components can employ a screw mechanism or a hydraulic cylinder to achieve precise horizontal displacement control of the shifting rolls. Furthermore, the upper work roll 11 and the lower work roll 12 are arranged in parallel to ensure the stability of the silicon steel strip during the rolling process.

[0121] More specifically, the adjustment parameters include control parameters relating to the first horizontal drive assembly that characterize the horizontal displacement distance of the upper roller 13, and control parameters relating to the second horizontal drive assembly that characterize the horizontal displacement distance of the lower roller 14. The first and second horizontal drive assemblies are preferably electric cylinders driven by stepper motors, and these control parameters preferably include the number and frequency of pulses controlling the operation of the stepper motor.

[0122] More specifically, in the embodiment where the tension information is the tension level determined by the aforementioned mapping table, step B2 actually extracts the corresponding control parameter from the preset control parameters based on the difference in tension levels as the adjustment parameter. This further simplifies the process of obtaining the adjustment parameter, thereby simplifying the tension adjustment process, improving the tension adjustment efficiency, and effectively ensuring the tension symmetry during the cold rolling process of silicon steel strip, so as to improve the strip shape quality and product quality of silicon steel strip.

[0123] Fourthly, please refer to Figure 9 This application also provides an online edge tension adjustment device for silicon steel strip, which is used in silicon steel strip cold rolling equipment. The roll assembly 1 of the silicon steel strip cold rolling equipment includes a set of shifting rolls.

[0124] The adjustment device includes:

[0125] Analysis module 401 is used to obtain tension symmetry results based on the online edge tension detection method of silicon steel strip provided in the first aspect. The tension symmetry results include the direction of tension deviation and the degree of tension deviation.

[0126] The generation module 402 is used to generate adjustment parameters based on the direction and degree of tension deviation when the tension deviation exceeds a preset threshold.

[0127] The adjustment module 403 is used to control the movement of the roller group according to the adjustment parameters to adjust the edge tension of the silicon steel strip.

[0128] The online edge tension adjustment device for silicon steel strip in this embodiment obtains tension symmetry results, including the direction and degree of tension deviation, through the tapping component 2 and the data acquisition component 3. When the degree of tension deviation is greater than a preset threshold, it generates appropriate adjustment parameters to control the movement of the roller group to adjust the edge tension of the silicon steel strip. This realizes the adaptive online adjustment of the edge tension of the silicon steel strip, which has the advantages of high reliability and objectivity, ensuring the timeliness of cold rolling process adjustment and guaranteeing the product quality of silicon steel strip.

[0129] In some preferred embodiments, the online edge tension adjustment device for silicon steel strip in this application is used to perform the online edge tension adjustment method for silicon steel strip provided in the third aspect above.

[0130] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0131] Furthermore, the units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0132] Furthermore, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0133] In this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations.

[0134] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A method for on-line detection of edge tension of silicon steel strip, applied in a silicon steel strip cold rolling device, characterized in that, The cold rolling equipment of silicon steel strip is symmetrically provided with two knocking assemblies located at the rear side of the roller assembly and at both sides of the silicon steel strip, a data acquisition assembly is arranged on the knocking assembly, the knocking assembly is used for knocking the edge of the silicon steel strip to make the data acquisition assembly acquire the edge parameter information representing the tension size of the silicon steel strip; the knocking assembly comprises a mounting bracket, a limiting sleeve rod, a knocking rod and a driving assembly, the middle part of the limiting sleeve rod is hingedly installed on the mounting bracket, one end of the limiting sleeve rod is provided with a limiting groove, one end of the knocking rod is hingedly installed in the limiting groove, the other end of the knocking rod is used for knocking the edge of the silicon steel strip, the limiting groove is used for limiting the swing range of the knocking rod on the limiting sleeve rod, and the driving assembly is installed on the mounting bracket and connected with the other end of the limiting sleeve rod, and is used for driving the limiting sleeve rod to swing. The detection method comprises the following steps: S1, intermittently control the two knocking assemblies to knock the edges of the silicon steel strip to make the data acquisition assembly acquire the edge parameter information; S2, convert the edge parameter information of the edges of the silicon steel strip into tension information based on a preset conversion relationship; S3, compare the consistency of the size of the tension information of the edges of the silicon steel strip to obtain the tension symmetry result of the silicon steel strip.

2. The method of on-line edge tension detection of silicon steel strip according to claim 1, characterized in that, When the edge parameter information comprises reaction force information, the data acquisition assembly comprises a piezoelectric sensor, the piezoelectric sensor is installed at the end of the knocking assembly and is used for acquiring the reaction force information.

3. The method of on-line edge tension detection of silicon steel strip according to claim 1, characterized in that, When the edge parameter information comprises sound information, the two knocking assemblies are controlled to knock respectively at different time in step S1, and when the edge parameter information does not comprise sound information, the two knocking assemblies are controlled to knock synchronously in step S1.

4. The method of on-line edge tension detection of silicon steel strip according to claim 1, characterized in that, In step S1, the process of controlling the knocking assembly to knock the edge of the silicon steel strip comprises: A1, control the driving assembly to drive the limiting sleeve rod to swing to a target position based on a first preset driving parameter, so that the knocking rod continues to swing relative to the limiting sleeve rod based on inertia after the limiting sleeve rod swings to the target position to knock the edge of the silicon steel strip.

5. The method of on-line edge tension detection of silicon steel strip according to claim 4, characterized in that, In step S1, the process of controlling the knocking assembly to knock the edge of the silicon steel strip further comprises: A2, based on the data acquisition assembly, monitor whether the knocking rod knocks the edge of the silicon steel strip, and after the knocking rod knocks the edge of the silicon steel strip, control the driving assembly to drive the limiting sleeve rod to retreat based on a second preset driving parameter.

6. A device for on-line detection of edge tension of silicon steel strip, which is applied in a silicon steel strip cold rolling equipment, characterized in that, The silicon steel strip cold rolling equipment is symmetrically provided with two knocking assemblies located at the rear side of the roller assembly and at both sides of the silicon steel strip, the knocking assemblies are provided with data acquisition assemblies, the knocking assemblies are used for knocking the edges of the silicon steel strip to make the data acquisition assemblies acquire edge parameter information representing the tension of the silicon steel strip; the knocking assembly comprises a mounting bracket, a limiting sleeve rod, a knocking rod and a driving assembly, the middle part of the limiting sleeve rod is hingedly mounted on the mounting bracket, one end of the limiting sleeve rod is provided with a limiting groove, one end of the knocking rod is hingedly mounted in the limiting groove, the other end of the knocking rod is used for knocking the edge of the silicon steel strip, the limiting groove is used for limiting the swinging range of the knocking rod on the limiting sleeve rod, and the driving assembly is mounted on the mounting bracket and connected with the other end of the limiting sleeve rod, and is used for driving the limiting sleeve rod to swing. The detection device comprises: The acquisition module is configured to intermittently control the two knocking assemblies to knock the edges of the silicon steel strip to make the data acquisition assemblies acquire the edge parameter information. The conversion module is configured to convert the edge parameter information of the edges of the silicon steel strip into tension information based on a preset conversion relationship. The detection module is configured to compare the consistency of the sizes of the tension information of the edges of the silicon steel strip to obtain a tension symmetry result of the silicon steel strip.

7. A method for adjusting the edge tension of a silicon steel strip on line, applied in a silicon steel strip cold rolling device, characterized in that, The roller assembly of the silicon steel strip cold rolling equipment comprises a roller shifting group; The adjusting method comprises the following steps: B1. obtaining a tension symmetry result based on the edge tension online detection method of the silicon steel strip according to any one of claims 1-5, wherein the tension symmetry result comprises a tension deviation direction and a tension deviation degree; B2. when the tension deviation degree is greater than a preset threshold, generating an adjustment parameter according to the tension deviation direction and the tension deviation degree; B3. controlling the roller shifting group to move to adjust the edge tension of the silicon steel strip according to the adjustment parameter.

8. The method of on-line adjustment of edge tension of silicon steel strip according to claim 7, characterized by, The roller assembly further comprises an upper work roll and a lower work roll, the roller shifting group comprises an upper roller shifting roll and a lower roller shifting roll, the roller faces of the upper roller shifting roll and the lower roller shifting roll are both conically contracted, and the contraction directions are opposite, the upper roller shifting roll is driven to horizontally displace based on a first horizontal driving assembly to adjust the coincidence degree of the upper roller shifting roll with the upper work roll in the top view direction to adjust the tension of one side edge of the silicon steel strip, and the lower roller shifting roll is driven to horizontally displace based on a second horizontal driving assembly to adjust the coincidence degree of the lower roller shifting roll with the lower work roll in the top view direction to adjust the tension of the other side edge of the silicon steel strip.

9. A device for adjusting the edge tension of a silicon steel strip on line, which is applied in a silicon steel strip cold rolling equipment, characterized in that, The roller assembly of the silicon steel strip cold rolling equipment comprises a roller shifting group; The adjusting device comprises: The analysis module is configured to obtain a tension symmetry result based on the edge tension online detection method of the silicon steel strip according to any one of claims 1-5, wherein the tension symmetry result comprises a tension deviation direction and a tension deviation degree; The generation module is configured to generate an adjustment parameter according to the tension deviation direction and the tension deviation degree when the tension deviation degree is greater than a preset threshold; The adjustment module is configured to control the roller shifting group to move to adjust the edge tension of the silicon steel strip according to the adjustment parameter.

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