An ultra-thin charged current distribution regulation device and method based on flexible loading

Abstract

This invention discloses a device and method for regulating the current distribution of ultra-thin strips based on flexible loading, belonging to the field of ultra-thin strip processing technology. It includes a symmetrically arranged mounting base, on which a support assembly is mounted. Multiple distributed pressure modules are evenly spaced on the support assembly. Each distributed pressure module includes a first driving part fixedly connected to the support assembly, which includes a first driving member fixedly connected to the support assembly. A push rod follower plate is fixedly connected to the first driving member, and a second driving part is fixedly connected to the push rod follower plate. The second driving part includes a pressure sensor and a pressing component respectively disposed on the push rod follower plate. A flexible auxiliary roller and an electrode shaft are located below the distributed pressure modules, with strip material positioned between the flexible auxiliary roller and the electrode shaft. The pressing component abuts against the flexible auxiliary roller. This invention eliminates the need for applying a large, destructive load, avoiding localized stress concentration and mechanical indentations caused by traditional rigid electrodes, thus perfectly protecting the surface quality of the ultra-thin, high-strength strip material.

Description

Technical Field

[0001] This invention belongs to the field of ultra-thin strip processing technology, and particularly relates to an ultra-thin strip current distribution control device and method based on flexible loading. Background Technology

[0002] With the rapid development of aerospace, precision electronics, and high-end medical devices, the application of ultra-thin strips such as titanium alloys, stainless steel, and difficult-to-deform metals is becoming increasingly widespread. However, due to the "size effect," these materials exhibit severe work hardening characteristics during ultra-thinning, with a sharp increase in deformation resistance. Traditional cold rolling or processing methods face technical bottlenecks such as excessive load, poor strip shape quality, and high susceptibility to strip breakage. To improve the processing performance of ultra-thin strips, electroplastic assisted processing technology, which applies high-energy pulsed current to the deformation or transport zone of the strip, has emerged. This technology utilizes the non-thermal effect of the electric field on dislocation motion, which can significantly reduce the rheological stress of the material and improve plasticity. However, the stability of this process and the quality of the final product depend heavily on the uniformity of the pulsed current distribution on the strip. The following technical challenges are difficult to overcome in pulsed current assisted rolling processes: 1. Inherent edge aggregation effect induces transverse current distortion: During the application of pulsed current to ultra-thin strips, under the influence of macroscopic electromagnetic field boundary conditions, charge aggregation easily occurs at the physical boundaries of the strip. This results in a distinctly non-uniform initial current distribution on the metal strip, characterized by "low in the middle and high at both sides." The dramatic increase in edge current density can induce local overheating and contact interface ablation, and under certain material conditions, it can lead to excessive transverse thermal stress gradients, causing warping of the ultra-thin strip.

[0003] 2. Traditional rigid integral contact electrodes exacerbate local electro-thermal-mechanical instability: Existing energizing devices mostly employ integral rigid clamping mechanisms or directly rely on the longitudinal tension of the strip itself to force it to adhere to the electrode to achieve contact loading. Due to the objective micro-undulations (slight waviness or warping) on ​​the surface of extremely thin strips, rigid contacts cannot conform to the transverse micro-morphology of the strip, resulting in random and uneven pressure distribution on the contact surface, which in turn causes disordered abrupt changes in the transverse contact resistance Rc. In areas with low pressure and poor contact, excessive Rc leads to a surge in local Joule heating; while in areas with excessive pressure, it easily overlaps with inherent accumulation, exacerbating the current spike accumulation.

[0004] 3. Lack of proactive intervention and dynamic control methods for contact resistance: Existing technologies for current distribution in strips mainly focus on indirect adjustment methods such as changing the peripheral circuit or the static shape of the electrodes, lacking dynamic and proactive intervention methods at the energized execution end. Traditional equipment cannot effectively convert physical mechanical loads into electrical control variables, and therefore cannot deliberately guide the dense current at the edges to flow back and homogenize to the low-density area at the center during processing.

[0005] In summary, existing current-loading technologies suffer from the problem of isolated and uncoordinated mechanical loading and electrical distribution. Due to the lack of a laterally distributed dynamic intervention mechanism, the lateral pattern of contact resistance cannot be actively reshaped, resulting in long-term uncontrolled current distortion in ultra-thin strips during pulsed energization. This defect easily leads to irreversible localized edge thermal damage and sheet instability induced by uneven thermal stress, becoming a core technological bottleneck restricting the high-quality, continuous electroplastic production of ultra-thin, high-strength strips. Summary of the Invention

[0006] The purpose of this invention is to provide an ultra-thin current distribution control device and method based on flexible loading to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following solution: The present invention provides an ultra-thin current distribution control device based on flexible loading, comprising a symmetrically arranged mounting base, a support assembly mounted on the mounting base, and multiple distributed pressure modules equally spaced on the support assembly. Each distributed pressure module includes a first driving part fixedly connected to the support assembly, the first driving part including a first driving member fixedly connected to the support assembly, a push rod follower plate fixedly connected to the first driving member, and a second driving part fixedly connected to the push rod follower plate. The second driving part includes a pressure sensor and a pressing member respectively disposed on the push rod follower plate. A flexible sub-roller and an electrode shaft are provided below the distributed pressure module, and a strip is provided between the flexible sub-roller and the electrode shaft. The pressing member abuts against the flexible sub-roller.

[0008] Optionally, the first driving component includes a primary slide rail upright plate symmetrically fixed to the support assembly. A primary slide rail mounting plate is fixedly connected to one end of the primary slide rail upright plate away from the support assembly. A primary slide rail is mounted on the primary slide rail mounting plate. A primary slider is slidably connected to the primary slide rail. The primary slider is fixedly connected to the push rod follower plate. A push rod connecting plate is fixedly connected to the bottom of the push rod follower plate. A push rod is fixedly connected to the push rod connecting plate. The push rod is fixedly connected between the two primary slide rail upright plates.

[0009] Optionally, a pressure sensor mounting plate is fixedly connected to the push rod follower plate, and the pressure sensor is mounted on the bottom of the pressure sensor mounting plate.

[0010] Optionally, a secondary slide rail is fixedly connected to the side of the push rod follower plate away from the primary slider, a secondary slider is slidably connected to the secondary slide rail, and the pressing member is fixedly connected to the secondary slider.

[0011] Optionally, the pressing component includes a contact block mounting plate fixedly connected to the secondary slider, a contact block sub-plate fixedly connected to the bottom of the contact block mounting plate, a pressure contact block fixedly connected to the bottom surface of the contact block sub-plate, the pressure contact block abutting against the flexible sub-roller, and a buffer component fixedly connected to the top of the contact block mounting plate, the buffer component being located below the pressure sensor.

[0012] Optionally, the buffer includes a pressure rod mounting seat fixedly connected to the push rod follower plate, a spring fixedly connected to the bottom of the pressure rod mounting seat, a spring stop fixedly connected to the top surface of the contact block mounting plate, the spring being fixedly connected to the spring stop, and a fine-tuning nut being installed on the bottom surface of the spring stop.

[0013] Optionally, the support assembly includes a mounting column fixed to the top surface of the mounting base, and a pressure module mounting plate is fixed to the top surface of the mounting column. The pressure module mounting plate is fixed to the first-stage slide rail plate.

[0014] Optionally, the two ends of the flexible auxiliary roller are respectively rotatably connected to auxiliary roller mounting seats, the bottom of the auxiliary roller mounting seat is fixedly connected to a bearing seat mounting block, the top surface of the bearing seat mounting block is mounted with a bearing seat, and the electrode shaft is installed between the two bearing seats.

[0015] Optionally, a carbon brush mounting plate is provided below the electrode shaft, and a carbon brush is mounted on the carbon brush mounting plate, the carbon brush abutting against the electrode shaft.

[0016] A method for controlling the current distribution in an ultrathin band based on flexible loading includes the following steps: S1. Lift the flexible auxiliary roll and pass the ultra-thin metal strip to be rolled between the lower fixed electrode roll and the flexible auxiliary roll to apply and establish the basic longitudinal tension. S2. System initialization and target calculation stage: After the main control device is powered on, the set target current distribution curve and current pulse condition parameters are input. The system calls the pre-trained end-to-end proxy model, inversely calculates the optimal distributed thrust array to achieve the current sharing target, and uses it directly as the reference force matrix for the operation of each push rod target, and initializes the range and zero point of each pressure sensor. S3. The main control system sends instructions to the multi-axis controller, and multiple sets of push rods press down synchronously. S4. The system operates in force control mode. Based on the real-time feedback from each pressure sensor, it quickly approaches and locks onto the reference force matrix issued by the agent model, and completes the mechanical reshaping of the target contact resistance lateral distribution pattern in one step. S5. Start the external pulse power supply and transmission / rolling mechanism. The high-frequency pulse current passes through the ultra-thin strip. The main control system simultaneously opens the high-frequency dynamic closed loop and finely adjusts the thrust output of each push rod in real time to adaptively resist the surface undulations and mechanical disturbances during the strip's travel and processing. S6. After processing is completed, the system stops the pulse current and mechanical power output, and all push rods return to their original positions.

[0017] This invention discloses the following technical effects: The discrete lattice load applied by the pressing element is smoothly transformed into a continuous, stepless external pressure curve acting on the transverse direction of the ultra-thin strip through a slender auxiliary roller with a certain degree of elasticity. This eliminates the need for applying a large, destructive load across the entire strip, avoiding localized stress concentration and mechanical indentations caused by traditional rigid electrodes, thus perfectly protecting the surface quality of the ultra-thin, high-strength strip. Utilizing this continuously distributed external pressure field, the degree of compression deformation of the micro-protrusions in each transverse section of the ultra-thin strip is dynamically controlled, thereby converting the mechanical pressure into a contact resistance control parameter in electrically assisted rolling. At the physical level, a coupling mapping relationship between pressure loading parameters and current distribution adjustment is successfully established. Using the principle of micro-roughness, the pressure field is transformed into a contact resistance control variable. By adjusting the contact resistance, the current distribution in the electrode area is homogenized, suppressing strip defects caused by edge aggregation effects. During energization, the system fine-tunes the pressure distribution in real time based on calibration parameters and feedback from each pressure sensor, automatically compensating for control fluctuations and maintaining a stable contact resistance adjustment pattern. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the distributed structure of the distributed pressure module of the present invention; Figure 3 This is a schematic diagram of the distributed pressure module of the present invention; Figure 4 This is a side view of the distributed pressure module of the present invention; Figure 5 A flowchart is established for the proxy model of this invention; Figure 6 This is the control flowchart of the present invention.

[0019] Figure label: 1. Mounting base; 2. Bearing seat mounting block; 3. Carbon brush mounting plate; 4. Carbon brush; 5. Electrode shaft; 6. Bearing seat; 7. Auxiliary roller mounting seat; 8. Mounting column; 9. Flexible auxiliary roller; 10. Pressure module mounting plate; 11. Distributed pressure module; 12. Pressure sensor mounting plate; 13. Pressure sensor; 14. Pressure rod mounting seat; 15. Spring; 16. Spring stop seat; 17. Fine-tuning nut; 18. Contact block mounting plate; 19. Contact block sub-plate; 20. Pressure contact block; 21. Push rod follower plate; 22. First-stage slide rail mounting plate; 23. First-stage slide rail upright plate; 24. Push rod; 25. Push rod connecting plate; 26. First-stage slider; 27. First-stage slide rail; 28. Second-stage slide rail; 29. ​​Second-stage slider. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Reference Figures 1 to 6 As shown, this embodiment provides an ultra-thin current distribution control device based on flexible loading, including a symmetrically arranged mounting base 1, a support assembly mounted on the mounting base 1, and multiple distributed pressure modules 11 evenly spaced on the support assembly. Each distributed pressure module 11 includes a first driving part fixedly connected to the support assembly, the first driving part including a first driving member fixedly connected to the support assembly, a push rod follower plate 21 fixedly connected to the first driving member, and a second driving part fixedly connected to the push rod follower plate 21. The second driving part includes a pressure sensor 13 and a pressing member respectively disposed on the push rod follower plate 21. A flexible auxiliary roller 9 and an electrode shaft 5 are provided below the distributed pressure module 11, and a strip is provided between the flexible auxiliary roller 9 and the electrode shaft 5. The pressing member abuts against the flexible auxiliary roller 9.

[0023] The discrete lattice load applied by the pressing component is smoothly transformed into a continuous, stepless external pressure curve acting on the transverse direction of the ultra-thin strip through a slender auxiliary roll with a certain degree of elasticity. This eliminates the need for applying a large, destructive load across the entire strip, avoiding localized stress concentration and mechanical indentations caused by traditional rigid electrodes, thus perfectly protecting the surface quality of the ultra-thin, high-strength strip. Utilizing this continuously distributed external pressure field, the degree of compression deformation of the micro-protrusions in each transverse section of the ultra-thin strip is dynamically controlled, thereby converting the mechanical pressure into a contact resistance control parameter in electrically assisted rolling. This successfully establishes a coupling mapping relationship between pressure loading parameters and current distribution adjustment at the physical level. Using the principle of micro-roughness, the pressure field is transformed into a contact resistance control variable. By adjusting the contact resistance, the current distribution in the electrode area is homogenized, suppressing strip defects caused by edge aggregation effects. During energization, the system fine-tunes the pressure distribution in real time based on calibration parameters and feedback from each pressure sensor 13, automatically compensating for control fluctuations and maintaining a stable contact resistance adjustment pattern.

[0024] Multiple independent distributed pressure modules 11 are evenly and equidistantly arranged along the width of the strip. The drive source adopts a linear actuator to convert the power input into linear displacement thrust, supporting a high-precision fine-tuning mode for pressure or displacement. A slender, insulated auxiliary roller with specific elastic flexural stiffness is used. The upper part of the auxiliary roller bears the discrete pressing force of multiple linear modules, and the lower part contacts the ultra-thin metal strip. By utilizing its elastic deformation, the discrete load is transformed into a continuous, stepless, smooth pressure distribution curve.

[0025] In a further optimized design, the first driving component includes a primary slide rail plate 23 symmetrically fixed to the support component. A primary slide rail mounting plate 22 is fixed to the end of the primary slide rail plate 23 away from the support component. A primary slide rail 27 is mounted on the primary slide rail mounting plate 22. A primary slider 26 is slidably connected to the primary slide rail 27. The primary slider 26 is fixed to a push rod follower plate 21. A push rod connecting plate 25 is fixed to the bottom of the push rod follower plate 21. A push rod 24 is fixed to the push rod connecting plate 25. The push rod 24 is fixed between the two primary slide rail plates 23.

[0026] The push rod 24 extends, causing the push rod connecting plate 25 to move downwards, which in turn causes the push rod follower plate 21 to move downwards. The push rod follower plate 21 then causes the first-stage slider to slide along the first slide rail. The linear module containing the push rod 24 includes a miniature force sensor that provides real-time feedback on the absolute pressure value applied by the push rod 24, forming a closed-loop control with the linear module.

[0027] In a further optimized design, a pressure sensor mounting plate 12 is fixedly attached to the push rod follower plate 21, and a pressure sensor 13 is mounted on the bottom of the pressure sensor mounting plate 12.

[0028] In a further optimized design, a secondary slide rail 28 is fixedly connected to the side of the push rod follower plate 21 away from the primary slider 26. A secondary slider 29 is slidably connected to the secondary slide rail 28, and a pressing component is fixedly connected to the secondary slider 29.

[0029] The scheme is further optimized. The pressing component includes a contact block mounting plate 18 fixedly connected to the secondary slider 29. A contact block sub-plate 19 is fixedly connected to the bottom of the contact block mounting plate 18. A pressure contact block 20 is fixedly connected to the bottom surface of the contact block sub-plate 19. The pressure contact block 20 abuts against the flexible sub-roller 9. A buffer is fixedly connected to the top of the contact block mounting plate 18. The buffer is located below the pressure sensor 13.

[0030] As the push rod follows the plate 21 downwards, it drives the pressure contact block 20 downwards, causing it to contact the flexible auxiliary roller 9. The reaction force on the pressure contact block 20 forces the secondary slider 29 to slide in the opposite direction along the secondary guide rail. This relative displacement compresses the series-connected buffer, which then transmits a gentle and linear compressive force to the pressure sensor 13. With this composite transmission structure, the system not only eliminates the mechanical impact caused by rigid hard contact, but also accurately outputs the minute gradient load required to adjust the interface impedance of ultra-thin, high-strength metal strips.

[0031] The further optimized scheme includes a pressure rod mounting base 14 fixedly connected to the push rod follower plate 21, a spring 15 fixedly connected to the bottom of the pressure rod mounting base 14, a spring stop 16 fixedly connected to the top surface of the contact block mounting plate 18, the spring 15 and the spring stop 16 fixedly connected, and a fine-tuning nut 17 installed on the bottom surface of the spring stop 16.

[0032] The scheme is further optimized. The supporting components include a mounting column 8 fixed to the top surface of the mounting base 1, a pressure module mounting plate 10 fixed to the top surface of the mounting column 8, and the pressure module mounting plate 10 fixed to the first-stage slide rail plate 23.

[0033] In a further optimized design, the two ends of the flexible auxiliary roller 9 are respectively rotatably connected to auxiliary roller mounting seats 7, the bottom of the auxiliary roller mounting seat 7 is fixedly connected to a bearing seat mounting block 2, the top surface of the bearing seat mounting block 2 is mounted with a bearing seat 6, and an electrode shaft 5 is installed between the two bearing seats 6.

[0034] To further optimize the design, a carbon brush mounting plate 3 is provided below the electrode shaft 5, and a carbon brush 4 is mounted on the carbon brush mounting plate 3, with the carbon brush 4 abutting against the electrode shaft 5.

[0035] Before performing continuous processing and control, this invention pre-constructs an end-to-end force-electric multi-field coupling proxy model, with the specific steps as follows: First, based on the finite element results, the parameter value boundaries and sampling space are determined, and the distributed pressure array is initialized. With pulse current parameters (pulse amplitude) Pulse frequency Rise time ).

[0036] By using finite element method and thin-film pressure sensor calibration and correction, a mapping relationship from discrete thrust to continuous pressure curve is established. (x represents the transverse coordinate position of the strip), and is converted into transverse contact resistance distribution based on micro-convexity contact theory. ; Initial current accumulation characteristics were extracted based on finite element results. .

[0037] joint and Perform electromagnetic simulation and calculate current density distribution. Calculate the final current density distribution .

[0038] Will As a zero-force field physical boundary constraint, the uniform flow residual features are extracted to construct a multi-field coupled training sample library.

[0039] Finally, the neural network is trained using this sample library to fit the mapping relationship between multi-point pressure, pulse parameters and current distribution. When the prediction error loss meets the standard, the multi-point pressure and current distribution mapping proxy model is output and sent to the main control system.

[0040] The online control logic of this invention adopts a control process of "surrogate model feedforward solution + online adaptive closed loop".

[0041] 1. In the system initialization and target calculation stage, after the main control device is powered on, the set target current distribution curve and current pulse condition parameters are input. The system calls the pre-trained end-to-end proxy model to inversely calculate the optimal distributed thrust array to achieve the current sharing target. It is directly used as the reference force matrix for the target operation of each push rod 24, and the range and zero point of each pressure sensor 13 are initialized.

[0042] 2. Apply and lock the initial load. After the ultra-thin strip passes through the flexible auxiliary roller 9 and the electrode shaft 5 and establishes the basic tension, the main control system sends a command to the multi-axis controller, and multiple sets of push rods 24 press down synchronously. 3. The system operates in force control mode. Based on the real-time feedback from each pressure sensor 13, it quickly approaches and locks onto the reference force matrix issued by the proxy model, and completes the mechanical reshaping of the target contact resistance lateral distribution pattern in one step.

[0043] 4. Turn on the external pulse power supply and strip winding mechanism to enter the continuous pulse current processing process. The high-frequency pulse current passes through the ultra-thin strip, and the system immediately performs online multi-channel synchronous dynamic closed-loop control. The main control system strictly uses the reference force matrix output by the proxy model as the control target and relies on pressure sensor 13 for high-frequency real-time sampling.

[0044] 5. When the strip material is subjected to stress fluctuations and exceeds the tolerance during processing, the system will trigger a real-time dynamic adaptive compensation and control mechanism, and output dynamic compensation thrust with the optimal reference force matrix as the target.

[0045] Specifically, the output parameters of push rod 24 are determined by the nonlinear optimization results of the surrogate model: taking the homogenization target curve as an example, for the edge regions with excessively high inherent current density, the system will actively reduce the external pressure of the corresponding push rod 24 to reduce local surface adhesion and amplify edge contact resistance; while in the central region with lower current density, the pressure of push rod 24 will be increased to reduce contact resistance. The main control system precisely executes this customized pressure field issued by the surrogate model to force the dense high-frequency pulse current at the edge to flow back to the center, thereby ultimately achieving current homogenization control.

[0046] A method for controlling the current distribution in an ultrathin band based on flexible loading includes the following steps: S1. Lift the flexible auxiliary roll 9 and pass the ultra-thin metal strip to be rolled between the lower fixed electrode roll and the flexible auxiliary roll 9 to apply and establish the basic longitudinal tension. S2. System initialization and target calculation stage: After the main control device is powered on, the set target current distribution curve and current pulse condition parameters are input. The system calls the pre-trained end-to-end proxy model, inversely calculates the optimal distributed thrust array to achieve the current sharing target, and uses it directly as the reference force matrix for the target operation of each push rod 24, and initializes the range and zero point of each pressure sensor 13. S3. The main control system sends instructions to the multi-axis controller, and multiple sets of push rods 24 press down synchronously. S4. The system operates in force control mode. Based on the real-time feedback from each pressure sensor 13, it quickly approaches and locks onto the reference force matrix issued by the agent model, and completes the mechanical reshaping of the target contact resistance lateral distribution pattern in one step. S5. Start the external pulse power supply and transmission / rolling mechanism. The high-frequency pulse current passes through the ultra-thin strip. The main control system simultaneously opens the high-frequency dynamic closed loop and finely adjusts the thrust output of each push rod 24 in real time to adaptively resist the surface undulations and mechanical disturbances during the strip's travel and processing. S6. After processing is completed, the system stops the pulse current and mechanical power output, and all push rods return to their original positions 24 times.

[0047] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0048] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A very thin current distribution regulation device based on flexible loading, characterized in that: The system includes a symmetrically arranged mounting base (1), on which a support assembly is mounted. Multiple distributed pressure modules (11) are equally spaced on the support assembly. Each distributed pressure module (11) includes a first driving part fixedly connected to the support assembly. The first driving part includes a first driving member fixedly connected to the support assembly. The first driving member is fixedly connected to a push rod follower plate (21). The push rod follower plate (21) is fixedly connected to a second driving part. The second driving part includes a pressure sensor (13) and a pressing member respectively disposed on the push rod follower plate (21). A flexible auxiliary roller (9) and an electrode shaft (5) are provided below the distributed pressure module (11). A strip is provided between the flexible auxiliary roller (9) and the electrode shaft (5). The pressing member abuts against the flexible auxiliary roller (9).

2. The ultra-thin charged current profile regulating device based on flexible loading according to claim 1, characterized in that: The first driving component includes a primary slide rail plate (23) symmetrically fixed to the support component. A primary slide rail mounting plate (22) is fixed to one end of the primary slide rail plate (23) away from the support component. A primary slide rail (27) is mounted on the primary slide rail mounting plate (22). A primary slider (26) is slidably connected to the primary slide rail (27). The primary slider (26) is fixed to the push rod follower plate (21). A push rod connecting plate (25) is fixed to the bottom of the push rod follower plate (21). A push rod (24) is fixed to the push rod connecting plate (25). The push rod (24) is fixed between the two primary slide rail plates (23).

3. The ultra-thin charged current profile regulating device based on flexible loading according to claim 1, characterized in that: A pressure sensor mounting plate (12) is fixedly connected to the push rod follower plate (21), and the pressure sensor (13) is installed at the bottom of the pressure sensor mounting plate (12).

4. The ultra-thin charged current profile regulating device based on flexible loading according to claim 2, characterized in that: The push rod follower plate (21) is fixedly connected to a secondary slide rail (28) on the side away from the primary slider (26). A secondary slider (29) is slidably connected on the secondary slide rail (28). The pressing member is fixedly connected to the secondary slider (29).

5. The ultra-thin current distribution control device based on flexible loading according to claim 4, characterized in that: The pressing component includes a contact block mounting plate (18) fixedly connected to the secondary slider (29). A contact block sub-plate (19) is fixedly connected to the bottom of the contact block mounting plate (18). A pressure contact block (20) is fixedly connected to the bottom surface of the contact block sub-plate (19). The pressure contact block (20) abuts against the flexible sub-roller (9). A buffer is fixedly connected to the top of the contact block mounting plate (18). The buffer is located below the pressure sensor (13).

6. The ultra-thin current distribution control device based on flexible loading according to claim 5, characterized in that: The buffer includes a pressure rod mounting seat (14) fixedly connected to the push rod follower plate (21). A spring (15) is fixedly connected to the bottom of the pressure rod mounting seat (14). A spring stop (16) is fixedly connected to the top surface of the contact block mounting plate (18). The spring (15) is fixedly connected to the spring stop (16). A fine-tuning nut (17) is installed on the bottom surface of the spring stop (16).

7. The ultra-thin current distribution control device based on flexible loading according to claim 2, characterized in that: The support assembly includes a mounting column (8) fixed to the top surface of the mounting base (1), and a pressure module mounting plate (10) fixed to the top surface of the mounting column (8). The pressure module mounting plate (10) is fixed to the first-stage slide rail plate (23).

8. The ultra-thin current distribution control device based on flexible loading according to claim 1, characterized in that: The flexible auxiliary roller (9) is rotatably connected to the two ends of the auxiliary roller mounting seat (7). The bottom of the auxiliary roller mounting seat (7) is fixedly connected to the bearing seat mounting block (2). The top surface of the bearing seat mounting block (2) is equipped with a bearing seat (6). The electrode shaft (5) is installed between the two bearing seats (6).

9. The ultra-thin current distribution control device based on flexible loading according to claim 1, characterized in that: A carbon brush mounting plate (3) is provided below the electrode shaft (5), and a carbon brush (4) is mounted on the carbon brush mounting plate (3). The carbon brush (4) abuts against the electrode shaft (5).

10. A method for controlling the current distribution in an ultra-thin band based on flexible loading, wherein the ultra-thin band current distribution control device based on flexible loading as described in any one of claims 1-9 is characterized in that, Includes the following steps: S1. Lift the flexible auxiliary roller (9) and pass the ultra-thin metal strip to be rolled between the lower fixed electrode roller and the flexible auxiliary roller (9) to apply and establish the basic longitudinal tension; S2. System initialization and target calculation stage: After the main control device is powered on, the set target current distribution curve and current pulse condition parameters are input. The system calls the pre-trained end-to-end proxy model, inversely calculates the distributed thrust array that achieves the current equalization target, and uses it directly as the reference force matrix for the target operation of each push rod (24), and initializes the range and zero point of each pressure sensor (13). S3. The main control system sends instructions to the multi-axis controller, and multiple push rods (24) press down synchronously; S4. The system operates in force control mode. Based on the real-time feedback from each pressure sensor (13), it quickly approaches and locks onto the reference force matrix issued by the agent model, and completes the mechanical reshaping of the target contact resistance lateral distribution pattern in one step. S5. Start the external pulse power supply and transmission / rolling mechanism. The high-frequency pulse current passes through the ultra-thin strip. The main control system synchronously opens the high-frequency dynamic closed loop and adjusts the thrust output of each push rod (24) in real time to adaptively resist the surface undulations and mechanical disturbances during the strip's travel and processing. S6. After processing is completed, the system stops the pulse current and mechanical power output, and all push rods (24) return to the origin to reset.

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