Strip material electrical treatment apparatus

Abstract

The application discloses a strip electric treatment equipment, and relates to the technical field of metal strip forming, which comprises unwinding devices, tensioning devices, electric treatment devices and winding devices arranged in sequence; the unwinding devices comprise an unwinding control box and an unwinding shaft, the unwinding shaft is rotationally arranged in the unwinding control box, and the unwinding shaft is used for bearing a strip coil and unwinding the strip coil along a preset direction; the tensioning devices comprise a tensioning frame body and multiple tensioning rollers, the tensioning rollers are arranged on the tensioning frame body, at least one of the multiple tensioning rollers is movably arranged on the tensioning frame body, and the tensioning roller movably arranged on the tensioning frame body is used for changing the contact included angle between the strip and the multiple tensioning rollers by moving; the electric treatment devices comprise an electric treatment frame body, a power supply, a first conductive roller and a second conductive roller, the first conductive roller and the second conductive roller are both rotationally arranged on the electric treatment frame body, and the positive and negative poles of the power supply are electrically connected with the first conductive roller and the second conductive roller respectively; and the winding devices comprise a winding control box and a winding shaft.

Description

Technical Field

[0001] This invention relates to the field of metal strip forming technology, and more particularly to an electrical treatment device for strip. Background Technology

[0002] Wide-width precision stainless steel strip, as a high-end product in the sheet and strip steel industry, possesses excellent strength, plasticity, surface precision, corrosion resistance, and fatigue resistance. It is a key material for large aircraft skin, solar cell substrates, new energy battery electrodes, flexible screens, and foldable screen substrates. Wide-width precision stainless steel strip is typically produced using a 20-roll mill with multi-pass reciprocating rolling and offline furnace coil annealing between passes. Coil annealing can easily lead to problems such as interlayer adhesion and incomplete annealing in the center of the coil, resulting in excessively high residual stress and insufficient microstructure uniformity in the processed strip, affecting its final performance and service life. Summary of the Invention

[0003] The purpose of this invention is to provide an electrical treatment device for strip, which eliminates residual stress in strip after rolling and forming, improves the uniformity of strip structure, and enhances the final performance and service life of strip.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A strip electro-treatment device includes an unwinding device, a tensioning device, an electro-treatment device, and a winding device arranged sequentially. The unwinding device includes an unwinding control box and an unwinding shaft. The unwinding shaft is rotatably mounted on the unwinding control box. The unwinding shaft is used to carry the strip roll and unwind the strip roll along a preset direction. The tensioning device includes a tensioning frame and a plurality of tensioning rollers. The tensioning rollers are disposed on the tensioning frame, and at least one of the plurality of tensioning rollers is movably disposed on the tensioning frame. The tensioning roller movably disposed on the tensioning frame is used to adjust the tension of the strip by changing the contact wrap angle between the strip and the plurality of tensioning rollers. The electrical processing device includes an electrical processing frame, a power supply, a first conductive roller, and a second conductive roller. The first conductive roller and the second conductive roller are rotatably mounted on the electrical processing frame. The positive and negative terminals of the power supply are electrically connected to the first conductive roller and the second conductive roller, respectively. The first conductive roller and the second conductive roller are spaced apart along the conveying direction of the strip and are both used to contact the surface of the strip, forming a current path on the strip segment between the first conductive roller and the second conductive roller. The winding device includes a winding control box and a winding shaft, the winding shaft being rotatably mounted in the winding control box for winding the strip.

[0005] Optionally, in the above-described strip electrical treatment equipment, the electrical treatment apparatus further includes: The first guide roller is rotatably mounted on the electrical processing frame. The first guide roller is located on the side of the first conductive roller near the tensioning device and is used to contact and guide the strip so that the strip wraps around the surface of the first conductive roller. The second guide roller is rotatably mounted on the electrical processing frame. The second guide roller is located on the side of the second conductive roller near the winding device and is used to contact and guide the strip.

[0006] Optionally, in the above-mentioned strip electrical treatment equipment, the strip electrical treatment equipment further includes a welding device, which is disposed between the unwinding device and the tensioning device, and the welding device includes: Welded frame; A welding robotic arm, which is mounted on the welding frame; A welding torch, fixed on the welding robotic arm, is used to weld one end of the strip coil to be unwound and one end of the unwound strip coil.

[0007] Optionally, in the above-described strip electrical treatment equipment, the electrical treatment apparatus further includes: A first conductive bridge, one end of which is fixed to the electrical processing frame and electrically connected to the power supply, is located above the first conductive roller, and the extension direction of the first conductive bridge is parallel to the axial direction of the first conductive roller. The second conductive bridge has one end fixed to the electrical processing frame and electrically connected to the power supply. The second conductive bridge is located above the second conductive roller, and the extension direction of the second conductive bridge is parallel to the axial direction of the second conductive roller. A first brush assembly is electrically connected to the first conductive bridge and slides in contact with the first conductive roller. The second brush assembly is electrically connected to the second conductive bridge and slides in contact with the second conductive roller.

[0008] Optionally, in the above-mentioned strip electrical processing equipment, both the first brush assembly and the second brush assembly include: The brush body has a clamping end and a force-applying end. The clamping end has a clamping opening that can be elastically opened. The clamping end and the force-applying end are rotatably connected by a lever shaft. A pre-tensioning spring, with both ends connected to the force-applying end, is used to apply a reciprocating elastic force to the force-applying end, so that the clamping end clamps the outer peripheral surfaces of the first conductive roller and the second conductive roller.

[0009] Optionally, in the above-mentioned strip electrical treatment equipment, the electrical treatment device further includes a conductive sleeve, which is sleeved on the outer peripheral surface of the first conductive roller and the second conductive roller. The conductive sleeve includes a plurality of conductive sleeve segments, which are arranged along the axial direction of the first conductive roller and the second conductive roller. The outer diameter of the plurality of conductive sleeve segments decreases from the axial center of the first conductive roller and the second conductive roller towards both ends. The outer peripheral surfaces of the plurality of conductive sleeve segments together form an arc-shaped conductive surface for contacting the strip.

[0010] Optionally, in the above-mentioned strip electrical treatment equipment, both the first conductive roller and the second conductive roller have cooling channels opened along their own axial direction inside. The two ends of the first conductive roller and the two ends of the second conductive roller are respectively provided with cooling channel inlets and cooling channel outlets, and the cooling channel inlets are used to introduce coolant.

[0011] Optionally, in the above-mentioned strip electrical treatment equipment, both the first conductive roller and the second conductive roller include a first section, a second section and a third section arranged sequentially along their own axial direction. The outer peripheral surface of the second section is provided with a spiral groove. The first section is provided with the cooling channel inlet and the third section is provided with the cooling channel outlet. The cooling channel and the spiral groove are connected. The electrical treatment device further includes an insulating sealing sleeve, and the insulating sealing sleeve and the conductive sleeve are sequentially fitted on the outer peripheral surface of the second section. The insulating sealing sleeve is used to seal the spiral channel. The conductive sleeve has an extension portion, which is sleeved on the outer peripheral surface of the first segment and the outer peripheral surface of the third segment. The extension portion is used to make conductive contact with the first conductive roller and the second conductive roller.

[0012] Optionally, in the above-mentioned strip electrical treatment equipment, the strip electrical treatment equipment further includes an electromagnetic control device, the electromagnetic control device comprising: An electromagnetic control frame is fixed on the electrical treatment frame and located between the first conductive roller and the second conductive roller. Two electromagnetic shielding covers are movably connected to the electromagnetic control frame, with the two electromagnetic shielding covers located above and below the strip, respectively; and multiple excitation coils are fixedly disposed on the side of the electromagnetic shielding covers facing the strip, and the multiple excitation coils are arranged along the width direction of the strip.

[0013] Optionally, in the above-mentioned strip electrical treatment equipment, the electrical treatment device further includes a housing, in which the electrical treatment frame, the first conductive roller and the second conductive roller are all disposed, and the housing has a strip inlet and a strip outlet; The strip electrochemical treatment equipment also includes an inert gas source, which is fixedly installed on the housing and used to supply inert gas into the housing.

[0014] Compared with the prior art, the strip electro-treatment equipment provided in this application comprises an unwinding device, a tensioning device, an electro-treatment device, and a winding device arranged sequentially. The unwinding device's unwinding shaft carries the strip roll and unwinds it along a preset direction. Multiple tensioning rollers of the tensioning device are in contact with the strip surface, and the movable tensioning rollers adjust the contact wrap angle between the strip and each tensioning roller by changing their position. The first and second conductive rollers of the electro-treatment device are mounted on the electro-treatment frame and connected to the positive and negative terminals of the power supply, respectively, to simultaneously contact the strip surface and form a current loop with the strip. The winding device's winding shaft is used to wind the treated strip. During operation: The unwinding device continuously releases the strip, which, after tension adjustment by multiple tension rollers of the tensioning device, enters the electro-treatment device with stable tension. The strip sequentially winds around the first and second conductive rollers, with current flowing from the positive terminal of the power supply through the strip to the negative terminal, forming a current path in the strip section between the first and second conductive rollers. The electroplastic effect generated by the current flowing through the strip is used to electro-treat the strip. The winding device simultaneously winds up the treated strip, achieving electro-treatment of the strip. This setup, by unwinding the strip into a single layer and forming a current loop on the single layer, allows for electroplastic treatment of the strip in its flattened state after unwinding, avoiding the problems of interlayer adhesion and incomplete annealing in the middle of the roll caused by high-temperature annealing in coiled form. The strip passes through the electro-treatment device in a flattened state after unwinding, ensuring the uniformity of the electro-treatment, eliminating residual stress, and improving the microstructure. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a strip electrochemical treatment device proposed in an embodiment of the present invention; Figure 2 This is an isometric view of a strip electrochemical treatment device proposed in an embodiment of the present invention; Figure 3 This is a schematic diagram of the tensioning device of a strip electrical treatment equipment proposed in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of an electrical treatment device for a strip electrical treatment equipment proposed in an embodiment of the present invention; Figure 5This is a schematic diagram of the overall structure of the first and second conductive rollers of a strip electrochemical treatment device proposed in an embodiment of the present invention. Figure 6 This is an enlarged schematic diagram of the ends of the first and second conductive rollers of a strip electrochemical treatment device proposed in an embodiment of the present invention. Figure 7 This is a schematic diagram of the electromagnetic control device of a strip electro-processing equipment proposed in an embodiment of the present invention.

[0016] Reference numerals: 100 unwinding device, 110 unwinding control box, 120 unwinding shaft, 200 tensioning device, 210 tensioning frame, 220 tensioning roller, 300 electrical treatment device, 310 electrical treatment frame, 311 conductive roller frame, 312 power supply frame, 313 first conductive bridge, 314 second conductive bridge, 315 first brush assembly, 316 second brush assembly, 320 first conductive roller, 321 conductive sleeve, 3210 extension, 322 cooling channel, 323 spiral groove, 324 cooling channel inlet, 32 5 is the cooling channel outlet, 326 is the insulating sealing sleeve, 327 is the first section, 328 is the second section, 329 is the third section, 330 is the second conductive roller, 340 is the first guide roller, 350 is the second guide roller, 400 is the winding device, 410 is the winding control box, 420 is the winding shaft, 500 is the electromagnetic control device, 510 is the electromagnetic control frame, 520 is the electromagnetic shielding cover, 521 is the excitation coil, 600 is the strip, 700 is the welding device, 710 is the welding gun, 810 is the brush body, 811 is the clamping end, 812 is the force application end, and 820 is the preload spring. Detailed Implementation

[0017] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0018] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4The strip electro-treatment equipment provided in this embodiment of the invention includes an unwinding device 100, a tensioning device 200, an electro-treatment device 300, and a winding device 400 arranged sequentially. The unwinding device 100 includes an unwinding control box 110 and an unwinding shaft 120. The unwinding shaft 120 is rotatably disposed on the unwinding control box 110 and is used to carry the strip roll and unwind the strip roll along a preset direction. The tensioning device 200 includes a tensioning frame 210 and a plurality of tensioning rollers 220. The tensioning rollers 220 are disposed on the tensioning frame 210, and at least one of the plurality of tensioning rollers 220 is movably disposed on the tensioning frame 210. The tensioning rollers 220 are used to adhere to the surface of the strip 600, and the tensioning rollers 220 movably disposed on the tensioning frame 210 are used to change the relationship between the strip 600 and the plurality of tensioning rollers by moving. The contact wrap angle between 220 and the strip 600 is adjusted to regulate the tension of the strip 600. The electrical treatment device 300 includes an electrical treatment frame 310, a power supply, a first conductive roller 320 and a second conductive roller 330. The first conductive roller 320 and the second conductive roller 330 are both disposed on the electrical treatment frame 310. The positive and negative terminals of the power supply are electrically connected to the first conductive roller 320 and the second conductive roller 330, respectively. The first conductive roller 320 and the second conductive roller 330 are spaced apart along the conveying direction of the strip 600 and are both used to contact the surface of the strip 600, forming a current path on the strip segment between the first conductive roller 320 and the second conductive roller 330. The winding device 400 includes a winding control box 410 and a winding shaft 420. The winding shaft 420 is rotatably disposed in the winding control box 410 and is used to wind the strip 600.

[0019] For specific implementation details, please refer to: Figure 1 , Figure 2 , Figure 3 and Figure 4The unwinding device 100 continuously releases the strip 600. After the tension of the strip 600 is adjusted by the tensioning rollers 220 of the tensioning device 200, it enters the electro-treatment device 300 with a stable tension. The strip 600 passes sequentially around the first conductive roller 320 and the second conductive roller 330. Current is conducted from the positive terminal of the power supply through the strip 600 to the negative terminal of the power supply, forming a current path on the strip section between the first conductive roller 320 and the second conductive roller 330. The electro-plastic effect generated by the current flowing through the strip 600 is used to achieve electro-treatment of the strip 600. The winding device 400 simultaneously winds up the electro-treated strip 600, realizing the treatment and storage of the strip 600. This configuration, by unwinding the strip roll into a single layer of strip 600 and creating a current path on the single layer of strip 600, allows for electroplastic treatment of the unwound, flattened strip 600. This avoids the problems of interlayer adhesion and incomplete annealing in the middle of the roll caused by high-temperature annealing in coiled form. The strip 600 passes through the electrotreatment device 300 in a flattened state after unwinding, ensuring uniform electrotreatment, eliminating residual stress, and improving microstructure. It is understood that the preset direction is also the conveying direction of the strip 600.

[0020] As one possible implementation, such as Figure 1 , Figure 2 and Figure 4 As shown, the electrical treatment device 300 also includes a first guide roller 340 and a second guide roller 350. The first guide roller 340 is rotatably mounted on the electrical treatment frame 310 and is located on the side of the first conductive roller 320 near the tensioning device 200. It is used to contact and guide the strip 600 so that the strip 600 wraps around the surface of the first conductive roller 320. The second guide roller 350 is rotatably mounted on the electrical treatment frame 310 and is located on the side of the second conductive roller 330 near the winding device 400. It is used to contact and guide the strip 600.

[0021] During operation, when the conveyor belt 600 enters the electrical treatment device 300, it first contacts the first guide roller 340, is guided by the first guide roller 340 and changes direction, and then wraps around the surface of the first conductive roller 320 with a certain contact wrap angle. After completing contact with the first conductive roller 320, the conveyor belt 600 passes through the second conductive roller 330 and is finally guided away from the electrical treatment device 300 by the second guide roller 350. This ensures a stable transmission path for the conveyor belt 600 as it enters and exits the electrical treatment device 300 and contacts the first conductive roller 320 and the second conductive roller 330 respectively. By setting the first guide roller 340 and the second guide roller 350, the contact wrap angle between the strip 600 and the first conductive roller 320 and between the strip 600 and the second conductive roller 330 can be improved, thereby ensuring stable contact between the strip 600 and the first conductive roller 320 and between the strip 600 and the second conductive roller 330. This ensures the reliability of current conduction on the strip 600 and avoids problems such as local overheating or uneven current conduction caused by poor contact, thereby improving the stability of electrical processing.

[0022] As one possible implementation, such as Figure 1 and Figure 2 As shown, the strip electrochemical treatment equipment also includes a welding device 700, which is disposed between the unwinding device 100 and the tensioning device 200. The welding device 700 includes a welding frame, a welding robotic arm, and a welding torch 710. The welding robotic arm is disposed on the welding frame, and the welding torch 710 is fixed on the welding robotic arm for welding one end of the strip coil to be unwound to one end of the unwound strip coil.

[0023] It is understandable that during the production process of electro-treatment after unwinding the strip 600, when the strip roll on the unwinding device 100 is unwound, a section of the tail end of the strip 600 (i.e., the upstream end of the strip along the conveying direction) must be left for fixing on other devices upstream of the electro-treatment device 300 (such as...). Figure 2 As shown, it can be fixed to the tensioning device 200. It is understood that if a section of strip 600 is not fixed to the tensioning device 200, the tail end of the strip 600 cannot be electro-treated in the electro-treatment device 300. Therefore, this section of strip 600 used for fixing cannot enter the electro-treatment device 300 for electro-treatment, and this section of strip 600 becomes an untreated residual section. Therefore, when processing multiple strip rolls, the treated strip 600 is removed (the tail end of the strip roll was not electro-treated), and a new strip roll is then loaded for electro-treatment. Thus, each strip roll wastes a section of untreated strip 600, resulting in a considerable material loss accumulated over time.

[0024] Therefore, this embodiment provides a welding device 700 to solve the above problems. The welding device 700 can connect multiple discrete strip rolls into a continuous strip 600. During operation, when the previous strip roll (for ease of understanding, this strip roll is named A roll) is unwound, that is, when the end of A roll reaches the working range of the robotic arm of the welding device 700 (see [link to documentation]), Figure 1 and Figure 2 At this point, a portion of the strip 600 is fixed at the tensioning device 200, and the tail end of the strip 600 is within the work area of ​​the robotic arm. At this time, the unwinding device 100 has finished unwinding, and there is no strip roll on the unwinding shaft 120. The winding device 400 and other equipment are paused. After the machine stops, the next strip roll (for ease of understanding, this strip roll is named roll B) is placed on the unwinding device 100 to start unwinding, so that one end of roll B reaches the tail end of roll A, and under the action of the welding gun 710, the tail end of roll A and one end of roll B are welded together. After the welding is completed, the unwinding device 100 and the winding device 400 resume operation. At this time, the two discrete strip rolls are welded into a complete strip 600. One end of roll B and the tail end of roll A are connected and pass through the electrical treatment device 300, thus obtaining complete electrical treatment. This setup allows for the sequential welding of multiple strip coils during processing, reducing the number of residual sections caused by coil changes when processing multiple strip coils in batches (only the last strip coil will have a residual section), thus lowering raw material costs.

[0025] The welding torch 710 can be a plasma arc welding torch 710, a laser welding torch 710, or an electron beam welding torch 710, etc., and the specific form of the welding torch 710 is not limited.

[0026] In some embodiments, such as Figure 4 As shown, the electrical processing frame 310 includes a conductive roller frame 311 and a power supply frame 312. The first conductive roller 320 and the second conductive roller 330 are both rotatably mounted on the conductive roller frame 311. The first guide roller 340 and the second guide roller 350 are both rotatably mounted on the power supply frame 312. The power supply frame 312 is located on one side of the conductive roller frame 311, and the power supply is located inside the power supply frame 312.

[0027] By dividing the electrical processing frame 310 into a conductive roller frame 311 and a power supply frame 312, the electrical system and the mechanical system are isolated, which improves the safety of equipment operation. At the same time, the daily maintenance and troubleshooting of the conductive roller frame 311 and the power supply frame 312 are more independent and convenient. That is, if a component on the conductive roller frame 311 fails, the conductive roller frame 311 can be accessed separately for maintenance, thereby improving the reliability of the strip electrical processing equipment.

[0028] As one possible implementation, such as Figure 4 and Figure 6 As shown, the electrical treatment device 300 further includes a first conductive bridge 313, a second conductive bridge 314, a first brush assembly 315, and a second brush assembly 316. One end of the first conductive bridge 313 is fixed to the electrical treatment frame 310 and electrically connected to a power source. The first conductive bridge 313 is located above the first conductive roller 320, and its extension direction is parallel to the axial direction of the first conductive roller 320. One end of the second conductive bridge 314 is fixed to the electrical treatment frame 310 and electrically connected to a power source. The second conductive bridge 314 is located above the second conductive roller 330, and its extension direction is parallel to the axial direction of the second conductive roller 330. The first brush assembly 315 is electrically connected to the first conductive bridge 313 and slides in contact with the first conductive roller 320. The second brush assembly 316 is electrically connected to the second conductive bridge 314 and slides in contact with the second conductive roller 330.

[0029] Specifically, the first brush assembly 315 is electrically connected to the first conductive bridge 313 via a wire and slides in contact with the first conductive roller 320. The second brush assembly 316 is electrically connected to the second conductive bridge 314 via a wire and slides in contact with the second conductive roller 330. It can be understood that sliding contact means that the contact portion of the first brush assembly 315 with the first conductive roller 320 rests against the outer circumferential surface of the rotating first conductive roller 320, and slides relative to it as the first conductive roller 320 rotates. This sliding contact design ensures that the first brush assembly 315 and the first conductive roller 320, and the second brush assembly 316 and the second conductive roller 330 maintain uninterrupted contact when the first conductive roller 320 and the second conductive roller 330 rotate, thereby achieving stable electrical connections between the first conductive bridge 313 and the first conductive roller 320, and between the second conductive bridge 314 and the second conductive roller 330, respectively.

[0030] During the work process, please refer to Figure 4Here, we take the example of connecting the positive terminal of the power supply to the first conductive bridge 313 and the negative terminal of the power supply to the second conductive bridge 314 (it should be noted that the positive terminal of the power supply can also be connected to the second conductive bridge 314, and the negative terminal of the power supply can also be connected to the first conductive bridge 313): The current flows out from the positive terminal of the power supply, is conducted through the first conductive bridge 313 to the first brush assembly 315, and then to the first conductive roller 320 which is in sliding contact with the first brush assembly 315; then the current flows through the roller surface of the first conductive roller 320 to the strip 600 which is in contact with the roller surface of the first conductive roller 320, and flows through the area to be processed of the strip 600 (that is, the area of ​​the strip 600 located between the first conductive roller 320 and the second conductive roller 330) to the second conductive roller 330; then the current flows from the second conductive roller 330 through the second brush assembly 316 to the second conductive bridge 314, and finally flows back from the second conductive bridge 314 to the negative terminal of the power supply, forming a complete current loop between the power supply and the strip 600. By setting up a first conductive bridge 313 and a second conductive bridge 314, and by using a first brush assembly 315 to slide in contact with the first conductive roller 320 and a second brush assembly 316 to slide in contact with the second conductive roller 330, a stable transmission of current from the power source to the rotating first conductive roller 320 and second conductive roller 330 is achieved.

[0031] Furthermore, such as Figure 4 As shown, there are two first brush assemblies 315 and two second brush assemblies 316. The two first brush assemblies 315 are respectively connected to the two axial ends of the first conductive bridge 313 and contact the two ends of the first conductive roller 320. The two second brush assemblies 316 are respectively connected to the two axial ends of the second conductive bridge 314 and contact the two ends of the second conductive roller 330. This arrangement allows current to flow synchronously from both ends of the first conductive bridge 313 into the first conductive roller 320, resulting in a uniform current distribution along the axial direction of the first conductive roller 320. This ensures a consistent current density along the width of the strip 600, effectively improving the uniformity of the electrical treatment. Simultaneously, it guarantees the stability of the electrical treatment; if a single first brush assembly 315 or second brush assembly 316 experiences poor contact, the other first brush assembly 315 or second brush assembly 316 can still maintain current transmission, enhancing the stability of the equipment.

[0032] As one possible implementation, such as Figure 4 and Figure 6As shown, both the first brush assembly 315 and the second brush assembly 316 include a brush body 810 and a preload spring 820. The brush body 810 has a clamping end 811 and a force-applying end 812. The clamping end 811 has a clamping opening that can be elastically opened. The clamping end 811 and the force-applying end 812 are rotatably connected by a lever shaft. Both ends of the preload spring 820 are connected to the force-applying end 812 and are used to apply a spring force that moves away from each other to the force-applying end 812, so that the clamping end 811 is clamped on the outer peripheral surface of the first conductive roller 320 and the second conductive roller 330.

[0033] It is understandable that the clamping end 811 has a clamping opening that can be elastically opened, meaning that the brush body 810 is made of a conductive elastic material, giving the clamping end 811 a certain degree of elasticity and conductivity. During operation, please refer to... Figure 6 When the brush body 810 of the first brush assembly 315 is clamped to the outer peripheral surface of the first conductive roller 320 via its clamping end 811, and the brush body 810 of the second brush assembly 316 is clamped to the outer peripheral surface of the second conductive roller 330 via its clamping end 811, the preload spring 820 is in a compressed state. The compressed preload spring 820 applies a reciprocating elastic force to the force-applying end 812. Under the action of the lever shaft, the clamping end 811 receives a reciprocating elastic preload force along the clamping direction, causing the clamping opening to form a stable clamping on the outer peripheral surfaces of the first and second conductive rollers 320, thereby ensuring a stable electrical connection. By employing this lever-type clamping, the elastic force of the preload spring 820 is converted into a clamping force using the lever principle, enabling a reliable connection between the first brush assembly 315 and the rotating first conductive roller 320, and between the second brush assembly 316 and the rotating second conductive roller 330.

[0034] As one possible implementation, such as Figure 4 and Figure 5 As shown, the electrical treatment device 300 also includes a conductive sleeve 321, which is sleeved on the outer peripheral surface of the first conductive roller 320 and the second conductive roller 330. The conductive sleeve 321 includes multiple conductive sleeve segments, which are arranged along the axial direction of the first conductive roller 320 and the second conductive roller 330. The outer diameter of the multiple conductive sleeve segments decreases from the axial center of the first conductive roller 320 and the second conductive roller 330 to both ends. The outer peripheral surfaces of the multiple conductive sleeve segments together form an arc-shaped conductive surface for contacting the strip 600.

[0035] Specifically, there are two conductive sleeves 321, which are respectively fitted onto the first conductive roller 320 and the second conductive roller 330. Each conductive sleeve 321 is composed of multiple conductive sleeve segments, which are interconnected by keying or welding and installed on the first conductive roller 320 and the second conductive roller 330. The multiple conductive sleeve segments with different outer diameters are spliced ​​together to form an arc-shaped conductive surface on their outer circumferences. In the axial direction of the first conductive roller 320 and the second conductive roller 330, the outer diameter of the arc-shaped conductive surface decreases from the axial center to both ends. Along the axial direction of the first conductive roller 320, the middle part of the arc-shaped conductive surface is slightly bulging. During operation, when the strip 600 wraps around and passes through the arc-shaped conductive surface under tension, even if the strip 600 has warping or poor shape, the surface of the strip 600 can maintain uniform contact with the arc-shaped conductive surface, thereby ensuring the stability of current transmission between the first conductive roller 320, the second conductive roller 330, and the strip 600. This design solves the problem of poor contact caused by warping of the strip 600, increases the effective contact area, and facilitates uniform electroplastic treatment of the strip 600. At the same time, the segmented conductive sleeve structure facilitates installation and replacement after localized wear, reducing maintenance costs. For example, the conductive sleeve can be made of copper alloy to improve conductivity.

[0036] Understandably, during the rolling or transport of strip 600, due to uneven internal stress distribution or thermal effects, strip 600 is prone to warping in its width direction, causing the upper and lower surfaces of strip 600 to no longer be flat but slightly curved. This warping can lead to poor contact between strip 600 and the first conductive roller 320 and the second conductive roller 330.

[0037] As one possible implementation, such as Figure 4 and Figure 5 As shown, both the first conductive roller 320 and the second conductive roller 330 have cooling channels 322 axially formed inside them. Both ends of the first conductive roller 320 and the second conductive roller 330 have cooling channel inlets 324 and cooling channel outlets 325, respectively. The cooling channel inlets 324 are used to introduce coolant.

[0038] Specifically, cooling channels 322 are formed inside the first conductive roller 320 and the second conductive roller 330 along their own axial direction. At both ends of the first conductive roller 320 and the second conductive roller 330, cooling channel inlets 324 and cooling channel outlets 325 are formed, communicating with the cooling channels 322. The cooling channel inlets 324 and cooling channel outlets 325 are connected to an external coolant circulation system through pipelines. The cooling channel inlets 324 are used to introduce coolant. During operation, coolant enters the cooling channel 322 from the cooling channel inlet 324 at one end of the first conductive roller 320 and the second conductive roller 330, and then flows out from the cooling channel outlet 325. During the electro-processing, current flows through the first conductive roller 320 and the second conductive roller 330, generating heat. Additionally, the contact and friction between the strip 600 and the first conductive roller 320, and between the strip 600 and the second conductive roller 330, also generate heat on the first and second conductive rollers 320 and 330. During the coolant flow, the coolant carries away this heat, providing internal cooling for the continuously heating first and second conductive rollers 320 and 330, preventing them from deforming or being damaged due to overheating, ensuring stable conductivity, and guaranteeing the stability of the electro-processing. Simultaneously, the built-in cooling channel 322 has a compact cooling flow channel structure, does not occupy external space, and saves space. Furthermore, in some embodiments, rotary joints can be used at the cooling channel inlet 324 and cooling channel outlet 325 to connect to external fixed pipelines, thereby achieving reliable coolant delivery to the first and second conductive rollers 320 and 330 during rotation.

[0039] Furthermore, such as Figure 4 and Figure 5 As shown, both the first conductive roller 320 and the second conductive roller 330 include a first section 327, a second section 328, and a third section 329 arranged sequentially along their own axial direction. The outer peripheral surface of the second section 328 is provided with a spiral groove 323. The first section 327 is provided with a cooling channel inlet 324, and the third section 329 is provided with a cooling channel outlet 325. The cooling channel 322 and the spiral groove 323 are connected. The electrical treatment device 300 also includes an insulating sealing sleeve 326. The outer peripheral surface of the second section 328 is sequentially fitted with an insulating sealing sleeve 326 and a conductive sleeve 321. The insulating sealing sleeve 326 is used to seal the spiral groove 323. The conductive sleeve 321 has an extension 3210, which is fitted on the outer peripheral surface of the first section 327 and the outer peripheral surface of the third section 329. The extension 3210 is used to make conductive contact with the first conductive roller 320 and the second conductive roller 330.

[0040] Specifically, the following description uses the first conductive roller 320 as an example: The first conductive roller 320 includes a first section 327, a second section 328, and a third section 329 arranged sequentially along the axial direction. A spiral groove 323 is formed on the outer circumferential surface of the second section 328, and an insulating sealing sleeve 326 and a conductive sleeve 321 are sequentially fitted on the outer circumferential surface of the second section 328. The insulating sealing sleeve 326 is used to seal the spiral groove 323 to ensure that when the coolant entering from the cooling channel inlet 324 flows from the cooling channel 322 to the spiral groove 323, the coolant will not leak into the conductive sleeve 321. The first section 327 has a cooling channel inlet 324, the third section 328 has a cooling channel inlet 327, the third section 328 has a cooling channel inlet 328, the third section 329 ... A cooling channel outlet 325 is provided on the 29, and the cooling channel 322 is connected to the spiral channel 323 to form a complete cooling channel; the first section 327 and the third section 329 are used to achieve electrical connection with an external power source, so that the first conductive roller 320 is energized; the conductive sleeve 321 includes an extension 3210, which is sleeved on the first section 327 and the third section 329. The extension 3210 is in direct contact with the roller surface of the first conductive roller 320, so the current can be directly conducted from the energized first conductive roller 320 to the extension 3210 of the conductive sleeve 321, thereby energizing the entire conductive sleeve 321 and then performing electrical treatment on the strip 600.

[0041] During operation: The first section 327 and the third section 329 are electrically connected to the power supply. The power supply inputs current into the first conductive roller 320. The current is conducted in the first conductive roller 320 and then through the extension 3210 of the conductive sleeve 321 to the conductive sleeve 321, making the conductive sleeve 321 energized. The energized conductive sleeve 321 contacts the strip 600, guiding the current into the strip 600, thus achieving electrical treatment of the strip 600. Coolant enters the cooling channel 322 from the cooling channel inlet 324 of the first section 327. Since the cooling channel 322 is connected to the spiral channel 323, the coolant then flows into the spiral channel 323 of the second section 328, absorbing and carrying away the heat generated by the current passing through the first conductive roller 320, as well as the heat transferred from the strip 600. The heated coolant flows out from the cooling channel outlet 325 of the third section 329. In some embodiments, the first brush assembly 315 is installed on the first section 327 and the third section 329 respectively.

[0042] This configuration achieves axial functional partitioning of the first conductive roller 320 and the second conductive roller 330. The first segment 327 and the third segment 329 perform the conductive function, and the first brush assembly 315 and the second brush assembly 316 can be directly installed to achieve a stable electrical connection with the power supply without interfering with the strip 600. The second segment 328 is used to achieve electrical contact with the strip 600 and for cooling. This ensures that the functions of the first conductive roller 320 or the second conductive roller 330 do not interfere with each other, improving functional stability. Furthermore, the integrated structural design of conducting, cooling, and electrical contact functions results in a compact layout, eliminating the need for additional external cooling or auxiliary conductive components and saving space. In some embodiments, the spiral channel 323 can adopt a variable pitch design with the pitch gradually increasing from the middle of the roller shaft to both ends to optimize the cooling intensity in different areas.

[0043] As one possible implementation, such as Figure 2 and Figure 3 As shown, the tensioning device 200 also includes a vertical guide rail, a support slider, a flange-type tension sensor, and a servo electric cylinder; wherein, the vertical guide rail is disposed on the tensioning frame 210; the support slider is slidably connected to the vertical guide rail; the flange-type tension sensor is fixedly disposed on the support slider, and the tensioning roller 220, which is movably disposed on the tensioning frame 210, is disposed on the built-in bearing seat of the flange-type tension sensor; the servo electric cylinder is communicatively connected to the flange-type tension sensor and is drivenly connected to the support slider, and is used to drive the support slider according to the feedback signal of the flange-type tension sensor.

[0044] During operation, the strip 600 passes around the tension roller 220, which is movably mounted on the tension frame 210. The tension of the strip 600 is transmitted to the bearing seats at both ends through the tension roller 220, and is detected by the flange-type belt tension sensor. The flange-type belt tension sensor transmits the detected tension signal to the control system. The control system compares this signal with the preset tension target value, calculates the deviation, and generates a control command to send to the servo electric cylinder. The servo electric cylinder drives the piston rod to extend or retract according to the command, thereby driving the support slider and the movable tension roller 220 mounted on it to rise or fall along the vertical guide rail. By changing the position of the movable tension roller 220, the contact wrap angle between the strip 600 and the tension roller 220 is adjusted, thereby maintaining the tension of the strip 600 within the target value range. By setting up a control system consisting of a flange-type tension sensor and a servo electric cylinder, the tension of strip 600 is adjusted in real time, avoiding tension fluctuations caused by uneven thickness of strip 600. This ensures that strip 600 maintains stable tension throughout the electrochemical treatment process, thereby achieving better electroplastic treatment results.

[0045] As one possible implementation, such as Figure 4 and Figure 7As shown, the strip electrical treatment equipment also includes an electromagnetic control device 500, which includes an electromagnetic control frame 510, two electromagnetic shielding covers 520, and multiple excitation coils 521. The electromagnetic control frame 510 is fixed on the electrical treatment frame 310 and located between the first conductive roller 320 and the second conductive roller 330. The two electromagnetic shielding covers 520 are movably connected to the electromagnetic control frame 510, and the two electromagnetic shielding covers 520 are located above and below the strip 600, respectively. The excitation coils 521 are fixedly arranged on the side of the electromagnetic shielding cover 520 facing the strip 600, and the multiple excitation coils 521 are arranged along the width direction of the strip 600.

[0046] Specifically, the strip electrical treatment equipment also includes an electromagnetic control device 500, which includes an electromagnetic control frame 510, two electromagnetic shielding covers 520, and multiple excitation coils 521. The electromagnetic control frame 510 is fixed to the electrical treatment frame 310 by bolts or welding and is located between the first conductive roller 320 and the second conductive roller 330. The two electromagnetic shielding covers 520 are movably connected to the electromagnetic control frame 510, such that one electromagnetic shielding cover 520 is located above the strip 600 and the other is located below the strip 600, and can move relative to each other to adapt to strips 600 of different thicknesses. Multiple excitation coils 521 are fixedly arranged on the side of each electromagnetic shielding cover 520 facing the strip 600, and these excitation coils 521 are arranged sequentially along the entire width of the strip 600. During operation, when the strip 600 passes between the upper and lower electromagnetic shields 520, multiple excitation coils 521 arranged on the upper and lower sides of the strip 600 are energized, thereby forming a magnetic field in the width direction of the strip 600, improving the uniformity of current distribution in the width direction of the strip 600, and enhancing the quality of electroplastic treatment.

[0047] In some embodiments, an infrared temperature sensor array may also be integrated and installed on the electromagnetic shield 520 for real-time monitoring of the temperature distribution on the strip 600.

[0048] As one possible implementation, such as Figure 1 and Figure 2 As shown, the electrical treatment device 300 also includes a housing, an electrical treatment frame 310, a first conductive roller 320 and a second conductive roller 330, all of which are disposed in the housing. The housing has a strip 600 inlet and a strip 600 outlet. The strip electrical treatment device also includes an inert gas source, which is fixedly disposed on the housing and used to supply inert gas into the housing.

[0049] Specifically, the electrotreatment device 300 also includes an integral housing. The electrotreatment frame 310, the first conductive roller 320, and the second conductive roller 330 are all installed inside the housing. The housing has an inlet and an outlet on each of the two side walls corresponding to the travel path of the strip 600, allowing the strip 600 to pass through. The strip electrotreatment equipment also includes an inert gas source, which is fixedly connected to the outside of the housing and communicates with the inside of the housing to introduce inert gas into the housing. During operation, the inert gas source delivers inert gas, such as nitrogen or argon, into the sealed housing, thereby establishing an inert gas environment in the electrotreatment area. The strip 600 passes through the inert gas-filled housing via the inlet and outlet and completes the electroplasticization treatment therein. By setting up a sealed enclosure and introducing an inert gas source, an inert gas environment is provided for the electrotreatment process, preventing the strip 600 from oxidizing upon contact with oxygen during processing. This maintains the performance of the strip 600 and results in strip 600 with excellent surface quality. At the same time, the enclosure also provides a certain degree of safety protection for the components inside.

[0050] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0051] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A strip electrochemical treatment device, characterized in that, It includes an unwinding device, a tensioning device, an electrical treatment device, and a winding device arranged in sequence; The unwinding device includes an unwinding control box and an unwinding shaft. The unwinding shaft is rotatably mounted on the unwinding control box. The unwinding shaft is used to carry the strip roll and unwind the strip roll along a preset direction. The tensioning device includes a tensioning frame and a plurality of tensioning rollers. The tensioning rollers are disposed on the tensioning frame, and at least one of the plurality of tensioning rollers is movably disposed on the tensioning frame. The tensioning roller movably disposed on the tensioning frame is used to adjust the tension of the strip by changing the contact wrap angle between the strip and the plurality of tensioning rollers. The electrical treatment device includes an electrical treatment frame, a power supply, a first conductive roller, and a second conductive roller. The first conductive roller and the second conductive roller are rotatably mounted on the electrical treatment frame. The positive and negative terminals of the power supply are electrically connected to the first conductive roller and the second conductive roller, respectively. The first conductive roller and the second conductive roller are spaced apart along the conveying direction of the strip and are both used to contact the surface of the strip, forming a current path on the strip segment between the first conductive roller and the second conductive roller. The winding device includes a winding control box and a winding shaft, the winding shaft being rotatably mounted in the winding control box for winding the strip.

2. The strip electrochemical treatment equipment according to claim 1, characterized in that, The electrical processing device further includes: The first guide roller is rotatably mounted on the electrical processing frame. The first guide roller is located on the side of the first conductive roller near the tensioning device and is used to contact and guide the strip so that the strip wraps around the surface of the first conductive roller. The second guide roller is rotatably mounted on the electrical processing frame. The second guide roller is located on the side of the second conductive roller near the winding device and is used to contact and guide the strip.

3. The strip electrochemical treatment equipment according to claim 1, characterized in that, The strip electrochemical treatment equipment further includes a welding device, which is disposed between the unwinding device and the tensioning device, and the welding device includes: Welded frame; A welding robotic arm, which is mounted on the welding frame; A welding torch, fixed on the welding robotic arm, is used to weld one end of the strip coil to be unwound and one end of the unwound strip coil.

4. The strip electrochemical treatment equipment according to claim 1, characterized in that, The electrical processing device further includes: A first conductive bridge, one end of which is fixed to the electrical processing frame and electrically connected to the power supply, is located above the first conductive roller, and the extension direction of the first conductive bridge is parallel to the axial direction of the first conductive roller. The second conductive bridge has one end fixed to the electrical processing frame and electrically connected to the power supply. The second conductive bridge is located above the second conductive roller, and the extension direction of the second conductive bridge is parallel to the axial direction of the second conductive roller. A first brush assembly is electrically connected to the first conductive bridge and slides in contact with the first conductive roller. The second brush assembly is electrically connected to the second conductive bridge and slides in contact with the second conductive roller.

5. The strip electrochemical treatment equipment according to claim 4, characterized in that, Both the first brush assembly and the second brush assembly include: The brush body has a clamping end and a force-applying end. The clamping end has a clamping opening that can be elastically opened. The clamping end and the force-applying end are rotatably connected by a lever shaft. A pre-tensioning spring, with both ends connected to the force-applying end, is used to apply a reciprocating elastic force to the force-applying end, so that the clamping end clamps the outer peripheral surfaces of the first conductive roller and the second conductive roller.

6. The strip electrochemical treatment equipment according to claim 1, characterized in that, The electrical treatment device further includes a conductive sleeve, which is sleeved on the outer peripheral surfaces of the first conductive roller and the second conductive roller. The conductive sleeve includes multiple conductive sleeve segments, which are arranged along the axial direction of the first conductive roller and the second conductive roller. The outer diameter of the multiple conductive sleeve segments decreases from the axial center of the first conductive roller and the second conductive roller towards both ends. The outer peripheral surfaces of the multiple conductive sleeve segments together form an arc-shaped conductive surface for contacting the strip.

7. The strip electrochemical treatment equipment according to claim 6, characterized in that, Both the first conductive roller and the second conductive roller have cooling channels formed inside them along their own axial direction. Cooling channel inlets and outlets are formed at both ends of the first conductive roller and the second conductive roller, respectively. The cooling channel inlets are used to introduce coolant.

8. The strip electrochemical treatment equipment according to claim 7, characterized in that, Both the first conductive roller and the second conductive roller include a first section, a second section and a third section arranged sequentially along their own axial direction. The outer peripheral surface of the second section is provided with a spiral groove. The first section is provided with the cooling channel inlet. The third section is provided with the cooling channel outlet. The cooling channel and the spiral groove are connected. The electrical treatment device further includes an insulating sealing sleeve, and the insulating sealing sleeve and the conductive sleeve are sequentially fitted on the outer peripheral surface of the second section. The insulating sealing sleeve is used to seal the spiral channel. The conductive sleeve has an extension portion, which is sleeved on the outer peripheral surface of the first segment and the outer peripheral surface of the third segment. The extension portion is used to make conductive contact with the first conductive roller and the second conductive roller.

9. The strip electrochemical treatment equipment according to claim 1, characterized in that, The strip electrochemical treatment equipment further includes an electromagnetic control device, which comprises: An electromagnetic control frame is fixed on the electrical treatment frame and located between the first conductive roller and the second conductive roller. Two electromagnetic shielding covers are movably connected to the electromagnetic control frame, and the two electromagnetic shielding covers are located above and below the strip, respectively. Multiple excitation coils are fixedly disposed on the side of the electromagnetic shield facing the strip, and the multiple excitation coils are arranged along the width direction of the strip.

10. The strip electrochemical treatment equipment according to claim 1, characterized in that, The electrical processing device also includes a housing, in which the electrical processing frame, the first conductive roller, and the second conductive roller are all disposed. The housing has a strip inlet and a strip outlet. The strip electrochemical treatment equipment also includes an inert gas source, which is fixedly installed on the housing and used to supply inert gas into the housing.

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