A dynamic electrification device and method for metal strip rolling

Abstract

The application discloses a dynamic electrification device and method for metal extremely thin strip rolling, and relates to the technical field of metal extremely thin strip electric plastic working and rolling forming. The device comprises a pulse power supply, a flexible conductive strip, an electrification area adjusting assembly and a multidirectional position adjusting assembly. The electrification area adjusting assembly is arranged at the inlet side and the outlet side of a rolling mill, and is moved by three triangularly distributed ceramic rollers in linkage to adjust the effective contact area of the flexible conductive strip and the extremely thin strip. The copper electrode is abutted against the flexible conductive strip under the action of a tension spring and is connected to the pulse power supply. The multidirectional position adjusting assembly adjusts the position of the electrification area adjusting assembly along the rolling direction and the thickness direction to change the electrification action range and adapt to the extremely thin strips with different thicknesses. According to the material of the extremely thin strip, the thickness and the electric pulse processing parameters, the electrification area, the electrification action range and the extremely thin strip thickness adaptation spacing are adjusted, so that the pulse current forms a conductive loop through the inlet side flexible conductive strip, the extremely thin strip and the outlet side flexible conductive strip, and the stable dynamic electrification treatment in the extremely thin strip rolling process is realized.

Description

Technical Field

[0001] This invention relates to the field of electroplastic processing and rolling forming technology of metal materials, specifically to a dynamic energizing device and method for rolling ultra-thin metal strips. Background Technology

[0002] Extremely thin metal strips are characterized by their small thickness, low bending stiffness, and relatively small mass and heat capacity per unit length, making them susceptible to localized loads, temperature fluctuations, and changes in contact conditions during rolling. For some high-strength, low-plasticity, or difficult-to-deform extremely thin metal strips, conventional rolling processes often result in problems such as high deformation resistance, insufficient plasticity, and poor forming stability. By applying pulsed current during rolling, the Joule heating effect and electroplastic effect can be utilized to improve the material's deformation properties.

[0003] Existing dynamic electrified rolling mills typically use rigid electrodes, conductive rollers, or fixed conductive structures to contact the strip. For extremely thin strips with minimal thickness, rigid conductive components are prone to excessive local contact pressure, affecting the strip's surface condition and operational stability, while insufficient contact pressure can lead to unstable conductive contact. Furthermore, the contact area of ​​existing conductive structures is usually fixed, making it difficult to adjust the effective conductive contact area according to the thickness, width, material properties, and pulse current parameters of the extremely thin strip. This can easily result in unreasonable current density distribution in the contact area and excessive local temperature rise. In addition, the distance between the conductive components on the mill's inlet and outlet sides is often fixed, making it difficult to adjust the energizing range and effective energizing time according to rolling speed and process requirements.

[0004] In view of this, how to provide an ultra-thin strip dynamic energizing device and method that can partially or completely overcome the above-mentioned defects and can adjust the energizing area, energizing range and ultra-thin strip thickness adaptation spacing is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide an ultra-thin dynamic energizing device and method with adjustable energizing area and energizing range, in order to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides an ultra-thin dynamic current-carrying device with adjustable current-carrying area and current-carrying range, comprising:

[0007] Multiple flexible conductive strips are electrically connected to the corresponding output terminals of the pulse power supply;

[0008] Multiple electrical area adjustment components are respectively disposed on the inlet and outlet sides of the rolling mill. Each of the electrical area adjustment components includes three ceramic rolls arranged in a triangle and an electrical area adjustment mechanism. The flexible conductive strip is wound around the three ceramic rolls. The electrical area adjustment mechanism is used to drive the first ceramic roll to move and to link the second and third ceramic rolls to move synchronously in opposite directions or in opposite directions, so as to adjust the effective contact area between the flexible conductive strip and the ultra-thin strip.

[0009] A multi-directional position adjustment component is disposed between the frame and each of the energized area adjustment components, and is used to adjust the position of the energized area adjustment components along the ultra-thin strip rolling direction and the ultra-thin strip thickness direction, so as to adjust the energizing range of the ultra-thin strip and adapt to ultra-thin strips of different thicknesses.

[0010] Furthermore, the first ceramic roller is disposed between the second and third ceramic rollers on the side opposite to the ultrathin strip, and is capable of moving along the first direction;

[0011] The second ceramic guide roller and the third ceramic guide roller are symmetrically arranged about the center line of movement of the first ceramic guide roller along the first direction, and can move synchronously towards or away from each other along the second direction;

[0012] The first direction is perpendicular to the surface of the ultrathin strip, the second direction is parallel to the surface of the ultrathin strip, and the flexible conductive strip located between the second ceramic roller and the third ceramic roller forms a conductive contact section for contacting the ultrathin strip.

[0013] Furthermore, the current-conducting area adjustment assembly has two current-conducting area adjustment mechanisms, symmetrically arranged on both sides of the ceramic roller, each of the current-conducting area adjustment mechanisms including:

[0014] A first guide rail and a first slider, wherein the first guide rail is fixedly connected to the adjustment bracket along a first direction, and the first slider is slidably connected to the first guide rail;

[0015] The first movable base is fixedly connected to the first slider, and the corresponding end of the first ceramic roller is rotatably disposed on the first movable base;

[0016] The second guide rail, the second slider, and the third slider are respectively slidably connected to the second guide rail along the second direction.

[0017] The second movable base is fixedly connected to the second slider, and the corresponding end of the second ceramic roller is rotatably mounted on the second movable base;

[0018] The third movable base is fixedly connected to the third slider, and the corresponding end of the third ceramic roller is rotatably mounted on the third movable base;

[0019] The drive motor is fixedly mounted on the adjustment bracket;

[0020] A lead screw is rotatably mounted on the adjusting bracket in a first direction and is connected to the output end of the drive motor.

[0021] A lead screw nut is threadedly connected to the lead screw and fixedly connected to the first movable base;

[0022] The first link and the second link, one end of the first link and the second link are hinged to the first movable base, and the other end are respectively hinged to the second movable base and the third movable base;

[0023] The drive motor drives the first moving base to move along the first direction through the lead screw and lead screw nut, and drives the second moving base and the third moving base to move synchronously towards or away from each other along the second direction through the first connecting rod and the second connecting rod.

[0024] Furthermore, each of the described power-contact area adjustment mechanisms further includes:

[0025] A copper electrode is disposed between two opposing energized area adjustment mechanisms, and its upper end is rotatably connected to the two first movable bases via a ceramic shaft. The copper electrode is electrically connected to the pulse power supply.

[0026] A ceramic sleeve is fixedly attached to the optical axis at the lower end of the copper electrode.

[0027] A tension spring, one end of which is connected to a ceramic sleeve on the copper electrode and the other end of which is connected to the first movable base, is used to apply a force toward the flexible conductive strip to the copper electrode, so that the conductive contact surface of the copper electrode abuts against the surface of the flexible conductive strip.

[0028] Furthermore, the multi-directional position adjustment component is symmetrically arranged on both sides of the energized area adjustment component, and the multi-directional position adjustment component includes:

[0029] A movable mounting frame, each of which is mounted on both sides of the power-conducting area adjustment component via an electric cylinder, with its cylinder body fixedly connected to the plurality of movable mounting frames and its output end connected to the power-conducting area adjustment component;

[0030] A horizontal guide rod is fixed between the stand and the mill along the ultra-thin strip rolling direction;

[0031] A horizontal lead screw is rotatably mounted between the stand and the mill along the ultra-thin strip rolling direction;

[0032] A horizontal lead screw nut and a horizontal linear bearing are fixedly connected to the side of the movable mounting frame away from the energized area adjustment assembly; the horizontal linear bearing is slidably connected to the horizontal guide rod; and the horizontal lead screw nut is threadedly connected to the horizontal lead screw.

[0033] A horizontal drive motor is mounted on the frame and is connected to the horizontal lead screw.

[0034] The dynamic energizing device described in this invention is not limited to the rolling of ultra-thin metal strips, but can also be applied to metal strips and plates depending on the thickness and size specifications of the material to be processed. For metal materials of different thicknesses, the position of the relatively arranged energizing area adjusting components along the thickness direction of the material can be adjusted by the multi-directional position adjusting components to change the spacing between the flexible conductive strips, ensuring stable contact between the flexible conductive strips and the surface of the metal material to be processed. Simultaneously, the effective contact area between the flexible conductive strips and the metal material can be adjusted by the energizing area adjusting components, and the energizing range can be changed by adjusting the position of the energizing area adjusting components along the rolling direction. Therefore, this invention can make corresponding adjustments according to the differences in thickness, width, and energizing process parameters of ultra-thin metal strips, metal strips, and metal plates, exhibiting good dimensional adaptability and process versatility.

[0035] This invention also provides a dynamic current-carrying method for an ultra-thin strip with adjustable current-carrying area and current-carrying range, using an ultra-thin strip dynamic current-carrying device with adjustable current-carrying area and current-carrying range, comprising the following steps:

[0036] S1: Based on the target effective contact area between the flexible conductive strip and the ultra-thin strip, drive the first ceramic guide roller to move along the thickness direction of the ultra-thin strip, and link the second ceramic guide roller and the third ceramic guide roller to move synchronously towards or away from each other in a direction parallel to the surface of the ultra-thin strip, so that the effective contact area between the flexible conductive strip and the ultra-thin strip reaches the target effective contact area.

[0037] S2: Based on the target distance between the energized areas on the mill inlet and outlet sides, drive the energized area adjustment components on the mill inlet and outlet sides to move along the ultra-thin strip rolling direction, so that the distance between the energized area adjustment components on the inlet and outlet sides reaches the target energized action distance.

[0038] S3: Based on the thickness of the ultrathin strip, drive the relatively set conductive area adjustment components to move towards or away from each other along the thickness direction of the ultrathin strip, so that the corresponding flexible conductive strips contact the two sides of the ultrathin strip respectively.

[0039] S4: Start the rolling mill to make the ultra-thin strip move along the rolling direction. While the flexible conductive strip is in contact with the ultra-thin strip, start the pulse power supply so that the pulse current forms a conductive circuit through the flexible conductive strip on the inlet side and the outlet side of the rolling mill and the ultra-thin strip between them, and dynamically energize the moving ultra-thin strip.

[0040] The present invention discloses the following technical effects:

[0041] 1. By forming a flexible surface contact between the flexible conductive strip and the ultra-thin metal strip, the stability of the conductive contact during dynamic energization can be improved, and the risk of local compression, scratches or deformation of the ultra-thin strip caused by rigid conductive components can be reduced.

[0042] 2. By adjusting the three ceramic guide rollers in a coordinated manner, the effective contact area between the flexible conductive strip and the ultra-thin strip can be changed, thereby adapting to the conductivity requirements under different thicknesses, widths and energizing parameters, and facilitating the adjustment of the current density in the contact area.

[0043] 3. By driving the energized area adjustment components on the inlet and outlet sides to move along the rolling direction of the ultra-thin strip, the energized range and effective energization time of the ultra-thin strip are changed to adapt to different rolling speeds and electrical pulse processing processes.

[0044] 4. The conductive area adjustment component is driven by a relatively set electric cylinder to move along the thickness direction of the ultra-thin strip, which can adapt to ultra-thin strips of different thicknesses and maintain stable contact between the flexible conductive strip and the surface of the ultra-thin strip.

[0045] 5. The copper electrode continuously abuts against the surface of the flexible conductive strip under the action of the tension spring, which can maintain stable conductivity during the movement and shape change of the flexible conductive strip, thereby improving the continuity and reliability of the dynamic energizing process. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0048] Figure 2 This is a schematic diagram of the current-carrying area adjustment component.

[0049] Figure 3 for Figure 2 Side sectional view;

[0050] Figure 4 This is a schematic diagram of the multi-directional position adjustment component structure;

[0051] The components are as follows: 1. Pulse power supply; 2. Frame; 3. Rolling mill; 4. First ceramic roll; 5. Second ceramic roll; 6. Third ceramic roll; 7. Flexible conductive belt; 8. Copper electrode; 9. Ceramic shaft; 10. Tension spring; 11. Ceramic sleeve; 12. First guide rail; 13. First slider; 14. Adjustment bracket; 15. First movable base; 16. Second guide rail; 17. Second slider; 18. Third slider; 19. Second movable base; 20. Third movable base; 21. Drive motor; 22. Lead screw; 23. Lead screw nut; 24. First connecting rod; 25. Second connecting rod; 26. Movable mounting bracket; 27. Electric cylinder; 28. Horizontal lead screw; 29. ​​Horizontal lead screw nut; 30. Horizontal drive motor; 31. Horizontal linear bearing; 32. Horizontal guide rod. Detailed Implementation

[0052] 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.

[0053] 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.

[0054] The "ultra-thin metal strip" described in this invention refers to a metal strip with a thickness of no more than 0.1 mm. The specific thickness can be selected based on the material type and rolling process requirements. While ultra-thin metal strip is the preferred application of this invention, the dynamic energizing device described herein is not limited to the aforementioned thickness range. By adjusting the positions of the energizing area adjustment component and the multi-directional position adjustment component, it can also be applied to metal strips or sheets of other thicknesses.

[0055] This invention provides an ultra-thin dynamic current-carrying device with adjustable current-carrying area and current-carrying range, comprising:

[0056] The flexible conductive strip 7 is electrically connected to the corresponding output terminal of the pulse power supply 1;

[0057] The conductive area adjustment components are respectively installed on the inlet and outlet sides of the rolling mill. Each conductive area adjustment component includes three ceramic rollers arranged in a triangle and a conductive area adjustment mechanism. The flexible conductive strip 7 is wound around the three ceramic rollers. The conductive area adjustment mechanism is used to drive the first ceramic roller 4 to move, and to link the second ceramic roller 5 and the third ceramic roller 6 to move synchronously in opposite directions or in opposite directions, so as to adjust the effective contact area between the flexible conductive strip 7 and the ultra-thin strip.

[0058] A multi-directional position adjustment component is disposed between the frame 2 and each of the energized area adjustment components. It is used to adjust the position of the energized area adjustment component along the ultra-thin strip rolling direction and the ultra-thin strip thickness direction, so as to adjust the energized range of the ultra-thin strip and adapt to ultra-thin strips of different thicknesses.

[0059] In this embodiment, the first ceramic roller 4 is disposed between the second ceramic roller 5 and the third ceramic roller 6 on the side away from the ultrathin strip, and is capable of moving along the first direction;

[0060] The second ceramic guide roller 5 and the third ceramic guide roller 6 are symmetrically arranged about the first ceramic guide roller 4 along the center line of movement in the first direction, and can move synchronously towards or away from each other in the second direction.

[0061] The first direction is perpendicular to the surface of the ultrathin strip, the second direction is parallel to the surface of the ultrathin strip, and the flexible conductive strip 7 located between the second ceramic roller 5 and the third ceramic roller 6 forms a conductive contact section for contacting the ultrathin strip.

[0062] In this embodiment, the power-conducting area adjustment assembly has two power-conducting area adjustment mechanisms, which are symmetrically arranged on both sides of the ceramic roller. Each of the power-conducting area adjustment mechanisms includes:

[0063] The first guide rail 12 and the first slider 13 are fixedly connected to the adjusting bracket 14 along the first direction, and the first slider 13 is slidably connected to the first guide rail 12.

[0064] The first movable base 15 is fixedly connected to the first slider 13, and the corresponding end of the first ceramic roller 4 is rotatably disposed on the first movable base 15.

[0065] The second guide rail 16, the second slider 17, and the third slider 18 are respectively slidably connected to the second guide rail 16 along the second direction.

[0066] The second movable base 19 is fixedly connected to the second slider 17, and the corresponding end of the second ceramic roller 5 is rotatably disposed on the second movable base 19.

[0067] The third movable base 20 is fixedly connected to the third slider 18, and the corresponding end of the third ceramic roller 6 is rotatably disposed on the third movable base 20.

[0068] The drive motor 21 is fixedly mounted on the adjustment bracket 14;

[0069] The lead screw 22 is rotatably mounted on the adjusting bracket 14 in the first direction and is connected to the output end of the drive motor 21.

[0070] The lead screw nut 23 is threadedly connected to the lead screw 22 and fixedly connected to the first movable base 15;

[0071] The first link 24 and the second link 25 are connected together at one end to the first movable base 15, and the other end is connected to the second movable base 19 and the third movable base 20 respectively.

[0072] The drive motor 21 drives the first movable base 15 to move along the first direction through the lead screw 22 and lead screw nut 23, and drives the second movable base 19 and the third movable base 20 to move synchronously towards or away from each other along the second direction through the first connecting rod 24 and the second connecting rod 25.

[0073] In this embodiment, each of the current-carrying area adjustment mechanisms further includes:

[0074] A copper electrode 8 is disposed between two opposing energized area adjustment mechanisms. Its upper end is rotatably connected to the two first movable bases 15 via a ceramic shaft 9. The copper electrode 8 is electrically connected to the pulse power supply 1.

[0075] The ceramic sleeve 11 is fixed to the optical axis at the lower end of the copper electrode 8;

[0076] A tension spring 10, one end of which is connected to the ceramic sleeve 11 on the copper electrode 8 and the other end of which is connected to the first movable base 15, is used to apply a force toward the flexible conductive strip 7 to the copper electrode 8, so that the conductive contact surface of the copper electrode 8 abuts against the surface of the flexible conductive strip 7.

[0077] In this embodiment, the multi-directional position adjustment component is symmetrically arranged on both sides of the power-contact area adjustment component, and the multi-directional position adjustment component includes:

[0078] Each of the movable mounting brackets 26 is mounted on both sides of the power-conducting area adjustment component via an electric cylinder 27, with its cylinder body fixedly connected to the movable mounting bracket 26 and its output end connected to the power-conducting area adjustment component.

[0079] A horizontal guide rod 32 is fixedly connected between the stand 2 and the mill 3 along the ultra-thin strip rolling direction;

[0080] A horizontal lead screw 28 is rotatably disposed between the frame 2 and the mill 3 along the ultra-thin strip rolling direction;

[0081] The horizontal lead screw nut 29 and the horizontal linear bearing 31 are fixedly connected to the side of the movable mounting bracket 26 away from the energized area adjustment assembly; the horizontal linear bearing 31 is slidably connected to the horizontal guide rod 32; the horizontal lead screw nut 29 is threadedly connected to the horizontal lead screw 28.

[0082] A horizontal drive motor 30 is mounted on the frame 2 and is connected to the horizontal lead screw (28) for transmission.

[0083] The dynamic energizing device described in this invention is not limited to the rolling of extremely thin metal strips, but can also be applied to thin metal strips and plates depending on the thickness and size specifications of the material to be processed.

[0084] This invention also provides a dynamic current-carrying method for an ultra-thin strip with adjustable current-carrying area and current-carrying range, using an ultra-thin strip dynamic current-carrying device with adjustable current-carrying area and current-carrying range, comprising the following steps:

[0085] S1: Based on the target effective contact area between the flexible conductive strip 7 and the ultra-thin strip, drive the first ceramic guide roller 4 to move along the thickness direction of the ultra-thin strip, and link the second ceramic guide roller 5 and the third ceramic guide roller 6 to move synchronously towards or away from each other in a direction parallel to the surface of the ultra-thin strip, so that the effective contact area between the flexible conductive strip 7 and the ultra-thin strip reaches the target effective contact area.

[0086] S2: Based on the target distance between the energized areas on the mill inlet and outlet sides, drive the energized area adjustment components on the mill inlet and outlet sides to move along the ultra-thin strip rolling direction, so that the distance between the energized area adjustment components on the inlet and outlet sides reaches the target energized action distance.

[0087] S3: Based on the thickness of the ultrathin strip, drive the relatively arranged conductive area adjustment components to move towards or away from each other along the thickness direction of the ultrathin strip, so that the corresponding flexible conductive strip 7 contacts the two sides of the ultrathin strip respectively.

[0088] S4: Start the rolling mill 3 to make the ultra-thin strip move along the rolling direction. While the flexible conductive strip is in contact with the ultra-thin strip, start the pulse power supply 1 so that the pulse current forms a conductive circuit through the flexible conductive strip on the inlet side and the outlet side of the rolling mill and the ultra-thin strip between them, and dynamically energize the moving ultra-thin strip.

[0089] 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.

[0090] 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 dynamic energizing device for rolling ultra-thin metal strips, characterized in that, include: The flexible conductive strip (7) is electrically connected to the corresponding output terminal of the pulse power supply (1); The energized area adjustment components are respectively set on the inlet side and the outlet side of the rolling mill. Each of the energized area adjustment components includes three ceramic rollers arranged in a triangle and an energized area adjustment mechanism. The flexible conductive strip (7) is wound around the three ceramic rollers. The energized area adjustment mechanism is used to drive the first ceramic roller (4) to move and link the second ceramic roller (5) and the third ceramic roller (6) to move synchronously towards or away from each other, so as to adjust the effective contact area between the flexible conductive strip (7) and the ultra-thin strip. A multi-directional position adjustment component is disposed between the frame (2) and each of the energized area adjustment components. It is used to adjust the position of the energized area adjustment component along the ultra-thin strip rolling direction and the ultra-thin strip thickness direction, so as to adjust the energized range of the ultra-thin strip and adapt to ultra-thin strips of different thicknesses.

2. The dynamic energizing device for rolling ultra-thin metal strips according to claim 1, characterized in that: The first ceramic roller (4) is disposed between the second ceramic roller (5) and the third ceramic roller (6) on the side away from the ultrathin strip, and is capable of moving along the first direction; The second ceramic guide roller (5) and the third ceramic guide roller (6) are symmetrically arranged about the first ceramic guide roller (4) along the center line of movement in the first direction, and can move synchronously towards or away from each other in the second direction. The first direction is perpendicular to the surface of the ultrathin strip, the second direction is parallel to the surface of the ultrathin strip, and the flexible conductive strip (7) located between the second ceramic roller (5) and the third ceramic roller (6) forms a conductive contact segment for contacting the ultrathin strip.

3. The dynamic energizing device for rolling ultra-thin metal strips according to claim 2, characterized in that, The current-conducting area adjustment assembly has two current-conducting area adjustment mechanisms, symmetrically arranged on both sides of the ceramic roller, each of the current-conducting area adjustment mechanisms including: The first guide rail (12) and the first slider (13) are fixedly connected to the adjustment bracket (14) along the first direction, and the first slider (13) is slidably connected to the first guide rail (12). The first movable base (15) is fixedly connected to the first slider (13), and the corresponding end of the first ceramic roller (4) is rotatably disposed on the first movable base (15); The second guide rail (16), the second slider (17), and the third slider (18) are fixedly connected to the adjusting bracket (14) along the second direction. The second slider (17) and the third slider (18) are slidably connected to the second guide rail (16) respectively. The second movable base (19) is fixed to the second slider (17), and the corresponding end of the second ceramic roller (5) is rotatably disposed on the second movable base (19); The third movable base (20) is fixed to the third slider (18), and the corresponding end of the third ceramic roller (6) is rotatably mounted on the third movable base (20); The drive motor (21) is fixedly mounted on the adjustment bracket (14); The lead screw (22) is rotatably mounted on the adjusting bracket (14) in the first direction and is connected to the output end of the drive motor (21) for transmission. The lead screw nut (23) is threadedly connected to the lead screw (22) and fixedly connected to the first movable base (15); The first link (24) and the second link (25) are connected together at one end to the first movable base (15) and at the other end to the second movable base (19) and the third movable base (20) respectively. The drive motor (21) drives the first movable base (15) to move along the first direction through the lead screw (22) and lead screw nut (23), and drives the second movable base (19) and the third movable base (20) to move synchronously towards or away from each other along the second direction through the first connecting rod (24) and the second connecting rod (25).

4. The dynamic energizing device for rolling ultra-thin metal strips according to claim 3, characterized in that, Each of the aforementioned energized area adjustment mechanisms further includes: The copper electrode (8) is disposed between two opposing energized area adjustment mechanisms. Its upper end is rotatably connected to the two first movable bases (15) via a ceramic shaft (9). The copper electrode (8) is electrically connected to the pulse power supply (1). A ceramic sleeve (11) is fixed to the optical axis at the lower end of the copper electrode (8); A tension spring (10) is connected at one end to a ceramic sleeve (11) on the copper electrode (8) and at the other end to the first movable base (15). It is used to apply a force toward the flexible conductive strip (7) to the copper electrode (8) so that the conductive contact surface of the copper electrode (8) abuts against the surface of the flexible conductive strip (7).

5. The dynamic energizing device for rolling ultra-thin metal strips according to claim 1, characterized in that, The multi-directional position adjustment component is symmetrically arranged on both sides of the current-conducting area adjustment component, and the multi-directional position adjustment component includes: Mobile mounting bracket (26), each of the mobile mounting brackets (26) is mounted on both sides of the power-conducting area adjustment component via an electric cylinder (27), the cylinder body is fixed to the mobile mounting bracket (26), and the output end is connected to the power-conducting area adjustment component; A horizontal guide rod (32) is fixed between the stand (2) and the mill (3) along the ultra-thin strip rolling direction; A horizontal lead screw (28) is rotatably disposed between the stand (2) and the mill (3) along the ultra-thin strip rolling direction; A horizontal lead screw nut (29) and a horizontal linear bearing (31) are fixedly connected to the side of the movable mounting bracket (26) away from the energized area adjustment assembly; the horizontal linear bearing (31) is slidably connected to the horizontal guide rod (32); and the horizontal lead screw nut (29) is threadedly connected to the horizontal lead screw (28). A horizontal drive motor (30) is mounted on the frame (2) and is connected to the horizontal lead screw (28) for transmission.

6. A dynamic energizing method for rolling ultra-thin metal strips, employing the ultra-thin strip dynamic energizing device according to any one of claims 1-5, characterized in that, Includes the following steps: S1: Based on the target effective contact area between the flexible conductive strip (7) and the ultra-thin strip, drive the first ceramic guide roller (4) to move along the thickness direction of the ultra-thin strip, and link the second ceramic guide roller (5) and the third ceramic guide roller (6) to move synchronously towards or away from each other in a direction parallel to the surface of the ultra-thin strip, so that the effective contact area between the flexible conductive strip (7) and the ultra-thin strip reaches the target effective contact area; S2: Based on the target distance between the energized areas on the mill inlet and outlet sides, drive the energized area adjustment components on the mill inlet and outlet sides to move along the ultra-thin strip rolling direction, so that the distance between the energized area adjustment components on the inlet and outlet sides reaches the target energized action distance. S3: Based on the thickness of the ultrathin strip, drive the relatively set conductive area adjustment components to move towards or away from each other along the thickness direction of the ultrathin strip, so that the corresponding flexible conductive strip (7) contacts the two sides of the ultrathin strip respectively. S4: Start the rolling mill (3) to make the ultra-thin strip move along the rolling direction. In the state where the flexible conductive strip and the ultra-thin strip are in contact, start the pulse power supply (1) so that the pulse current forms a conductive circuit through the flexible conductive strip on the inlet side and the outlet side of the rolling mill and the ultra-thin strip between them, and perform dynamic energization treatment on the moving ultra-thin strip.

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