Copper strip annealing device

Abstract

The invention relates to the technical field of copper strip annealing equipment, in particular to a copper strip annealing device which comprises a rack, a copper strip conveying mechanism and a nitrogen protection mechanism, the copper strip conveying mechanism and the nitrogen protection mechanism are fixedly connected with the rack, and the nitrogen protection mechanism comprises a support assembly, a protection shell, a rotating module, a visual collection module and a cleaning module. The protective shell is provided with a protective channel arranged in the length direction of the support assembly, the rotating module is provided with a rotating part arranged in the protective channel, the visual collecting module is provided with a visual collecting end capable of collecting images in the protective channel, and the cleaning module is provided with a stator part and a rotor part. By adding the nitrogen protection mechanism, oxygen is effectively isolated, the copper strip is prevented from being oxidized in the high-temperature and cooling process, the surface quality of the copper strip is guaranteed, meanwhile, the visual collection module is added in the nitrogen protection mechanism, and the surface quality of the copper strip and the thickness of the copper strip can be monitored in real time.

Description

Technical Field

[0001] This invention relates to the field of copper strip annealing equipment technology, and more particularly to a copper strip annealing apparatus. Background Technology

[0002] Copper strip is a key material in the fields of electronics, electrical engineering, and new energy, and its mechanical properties and surface quality directly affect the reliability of downstream products. In the integrated rolling and tin-plating production line, the copper strip annealing unit is a critical process step, mainly used to eliminate internal stress generated during rolling, reduce the yield strength of the material, and improve the microstructure, thereby providing a stable substrate for the subsequent tin-plating process.

[0003] Current annealing processes generally employ water cooling, which briefly exposes the cooled copper strip to the atmosphere before transferring it to the tin plating process. Due to copper's high chemical reactivity, a trace oxide layer will still form on the surface after water cooling and contact with air. Although this oxide layer is thin, it significantly reduces the interfacial adhesion between the tin plating layer and the copper substrate, leading to insufficient plating adhesion, pinhole defects, and the risk of peeling, thereby affecting the soldering performance and long-term service stability of the solder strip.

[0004] Currently, because the copper wire rolling and tin plating of the tin-plating integrated production line are carried out in one process, the copper strip directly enters the tin plating process after the rolling and annealing treatment is completed. During this process, there is a lack of independent and real-time detection methods for the surface of the copper strip. The detection of defects on the surface of the copper strip is only carried out after the tin plating is completed, which leads to a delay in defect detection. Defects such as cracks and uneven thickness on the surface of the copper strip cannot be detected in time, resulting in derivative defects such as insufficient adhesion of the tin plating layer, pinholes, and peeling. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a copper strip annealing device to solve the problem that the copper strip in the tin-plating integrated production line adopts an integrated process of rolling and tin plating. After the copper strip completes the rolling and annealing treatment, it directly enters the tin plating process. Defects such as cracks and uneven thickness on the surface of the copper strip cannot be detected in time, resulting in problems such as insufficient adhesion of the tin plating layer, pinholes, peeling and other derivative defects.

[0006] To achieve the above objectives, the present invention provides a copper strip annealing apparatus, comprising a copper strip conveying mechanism and a nitrogen protection mechanism fixedly connected to a frame. The nitrogen protection mechanism includes: a support assembly fixedly connected to the frame; a protective shell fixedly connected to the support assembly, having a protection channel arranged along the length direction of the support assembly, the copper strip passing through the protective shell along the protection channel; a rotating module fixedly connected to the support assembly, having a rotating part disposed within the protection channel, the rotation centerline of the rotating part coinciding with the centerline of the protection channel, the rotating part having a first rotation angle, a second rotation angle, and a third rotation angle; and visual acquisition. The module, fixedly connected to the rotating part, has a vision acquisition end capable of acquiring images within the protection channel; the cleaning module has a stator and a rotor, the stator being fixed within the protection channel, the rotor being rotatably mounted within the protection channel and capable of moving along the direction of the protection channel, and a cleaning scraper for cleaning the vision acquisition end is fixed on the rotor; when the rotating part is at a first rotation angle, the vision acquisition end acquires an image of one side end face of the copper strip; when the rotating part is at a second rotation angle, the vision acquisition end acquires an image of the thickness end face of the copper strip; when the rotating part is at a third rotation angle, the vision acquisition end acquires an image of the other side end face of the copper strip.

[0007] In an optional example, the cleaning module includes a drive mechanism having a power ring capable of moving along the protection channel direction. The rotor is fixedly connected to the power ring, and the power ring has a first working position and a second working position. When the power ring is in the first working position, it abuts against the rotating part and rotates synchronously with the rotating part, causing the cleaning scraper to move away from the direction of the visual acquisition end. When the power ring is in the second working position, it abuts against the stator, and the stator remains in its current position, causing the cleaning scraper to maintain relative movement with the rotating part.

[0008] In an alternative example, a spring is fitted on the outer wall of the power ring, one end of the spring abuts against the power ring, and the other end of the spring abuts against the stator component. The spring force pushes the power ring to move toward the rotor component. An electromagnetic ring is fixed to the end of the stator component that is closer to the power ring. The electromagnetic ring has a magnetic end that can generate magnetic force, and the magnetic end can use magnetic force to make the power ring move away from the rotor component.

[0009] In an optional example, the upper end of the rotating part is provided with a positioning slot, and the lower end of the power ring is provided with a positioning block. When the power ring is in the first working position, the positioning block is inserted and fixed in the positioning slot, so that the power ring can rotate synchronously with the rotating ring.

[0010] In an optional example, the inner wall of the stator component is provided with a plurality of limiting slots, the outer wall of the power ring is provided with a positioning flange, and the outer wall of the power ring is provided with a plurality of limiting protrusions facing the stator component. When the power ring is in the second working position, the limiting protrusions are inserted into the limiting slots.

[0011] In an optional example, the bracket assembly includes a support frame on which two sets of symmetrically arranged support units are fixed. The protective shell includes two sets of protective tubes, which are fixedly connected to the corresponding support units. The two sets of support unit brackets have a certain installation distance. The rotating part is disposed within the installation distance. The two ends of the rotating part are respectively connected to the corresponding support units by rotation. The rotating part and the inner cavity of the two sets of protective tubes combine to form a protective channel.

[0012] In an optional example, the stator component has a sliding groove along the direction of the protection channel, and a through hole is formed at the bottom of the sliding groove. The through hole penetrates the stator component along the direction of the protection channel. A sliding ring is fixed to the upper end of the rotating part by means of bolt connection. The sliding ring is rotatably inserted into the sliding groove. A limiting flange extending towards the center line is provided in the sliding groove. The limiting flange is used to limit the sliding of the sliding ring.

[0013] In an alternative example, the electromagnetic ring is fixed to the upper end of the guide base, and the power ring is made of a material that can be magnetically attracted.

[0014] In an optional example, the vision acquisition module includes a drive motor fixedly connected to the support unit, a drive gear fixed on the output shaft of the drive motor, a driven gear ring fitted on the outer wall of the rotating part, the drive gear meshing with the driven gear ring, a mounting flange provided on the outer wall of the rotating part, an observation hole communicating with the inner cavity of the rotating part on the mounting flange, a sealing sheet fixed at one end of the observation hole facing the inner cavity of the rotating part, and a vision acquisition end fixed on the mounting flange and extending into the observation hole.

[0015] In one alternative example, a liquid supply channel is provided on the outer wall of the rotating part, and the liquid supply channel is connected to the inner cavity of the rotating part.

[0016] The beneficial effects of this invention are as follows: by adding a nitrogen protection mechanism to the copper strip annealing device, oxygen is effectively isolated, preventing oxidation of the copper strip and ensuring the surface quality of the copper strip. At the same time, by adding a vision acquisition module to the nitrogen protection mechanism, the surface quality and thickness of the copper strip can be monitored in real time, and parameters such as nitrogen flow rate can be dynamically adjusted to ensure the production quality of the copper strip. Furthermore, by adding a cleaning module, dirt inside the protective channel can be scraped off, preventing dirt from interfering with the image acquisition accuracy. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of the gas protection mechanism in an embodiment of the present invention; Figure 3 This is a cross-sectional view of the gas protection mechanism in an embodiment of the present invention; Figure 4 This is a schematic diagram showing the state of the rotating part at the first rotation angle in an embodiment of the present invention; Figure 5 This is a schematic diagram showing the state of the rotating part at the second rotation angle in an embodiment of the present invention; Figure 6 This is a schematic diagram showing the state of the rotating part at the third rotation angle in an embodiment of the present invention; Figure 7 This is a schematic diagram of the connection relationship of the power ring in an embodiment of the present invention; Figure 8 This is a schematic diagram showing the state of the power ring in the first working position in an embodiment of the present invention; Figure 9 This is a schematic diagram showing the state of the power ring in the second working position in an embodiment of the present invention; Figure 10 This is a schematic diagram of the exploded structure of the cleaning module in an embodiment of the present invention. Figure 1 ; Figure 11 This is a schematic diagram of the exploded structure of the cleaning module in an embodiment of the present invention. Figure 2 ; Figure 12 This is a schematic diagram of the three-dimensional structure of the stator component in an embodiment of the present invention. Figure 1 ; Figure 13 This is a schematic diagram of the three-dimensional structure of the stator component in an embodiment of the present invention. Figure 2 .

[0019] The components in the diagram are labeled as follows: 1. Frame; 2. Gas protection mechanism; 3. Bracket assembly; 31. Support frame; 32. Support unit; 321. Support column; 322. Top end plate; 34. Sliding ring; 4. Protective shell; 41. Gas guide pipe; 42. Protective channel; 43. Protective tube; 5. Rotating module; 51. Rotating part; 511. Positioning slot; 512. Mounting flange; 513. Observation hole; 514. Sealing plate; 515. Extension flange; 516. Connecting key; 517. 6. Liquid supply channel; 7. Vision acquisition module; 61. Vision acquisition end; 62. Drive motor; 63. Drive gear; 64. Driven gear ring; 7. Cleaning module; 71. Stator; 711. Limiting slot; 712. Sliding groove; 713. Through hole; 714. Limiting flange; 72. Rotor; 73. Scraper; 74. Power ring; 741. Positioning block; 742. Positioning flange; 743. Limiting protrusion; 75. Spring; 76. Electromagnetic ring; 761. Magnetic end. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] In one embodiment, please refer to Figures 1 to 6 As shown, the present invention provides a copper strip annealing device, including a copper strip conveying mechanism and a nitrogen protection mechanism 2 fixedly connected to a frame 1.

[0023] The nitrogen protection mechanism 2 includes a support assembly 3, which is fixedly connected to the frame 1. The support assembly 3 serves as the carrier of the nitrogen protection mechanism 2.

[0024] The protective shell 4 is fixedly connected to the support assembly 3 and has a gas guide pipe 41 and a protective channel 42 arranged along the length of the support assembly 3. The gas guide pipe 41 and the protective channel 42 are connected, and the copper strip passes through the protective shell 4 along the protective channel 42. The gas guide pipe 41 is connected to an external gas supply device, which provides a protective gas for the copper strip, such as nitrogen. The gas guide pipe 41 can be made of transparent material for easy observation by the operator.

[0025] The rotating module 5 is fixedly connected to the bracket assembly 3 and has a rotating part 51 disposed within the protection channel 42. The rotation centerline of the rotating part 51 coincides with the centerline of the protection channel 42. The rotating part 51 has a first rotation angle, a second rotation angle, and a third rotation angle. The three rotation angles of the rotating part 51 enable image acquisition from different perspectives. The rotating part 51 is circular.

[0026] The visual acquisition module 6 is fixedly connected to the rotating part 51 and has a visual acquisition end 61 capable of acquiring images within the protection channel 42. The visual acquisition end 61 uses an image sensor, such as a camera, and is capable of transmitting data to the cloud.

[0027] The cleaning module 7 comprises a stator 71 and a rotor 72. The stator 71 is fixed within the protective channel 42, and the rotor 72 is rotatably mounted within the protective channel 42 and can move along the direction of the protective channel 42. A cleaning scraper 73 for cleaning the visual acquisition end 61 is fixed on the rotor 72. The rotor 72 has a ring structure and can rotate and move along the inner wall of the protective channel 42. A rubber strip is fixed at the contact end between the cleaning scraper 73 and the inner cavity of the protective channel 42, which can scrape away dirt from the inner cavity of the protective channel 42, preventing dirt from interfering with the image acquisition accuracy, extending the equipment maintenance cycle, and reducing operating costs.

[0028] When the rotating part 51 is at the first rotation angle, the vision acquisition end 61 acquires an image of one side end face of the copper strip; when the rotating part 51 is at the second rotation angle, the vision acquisition end 61 acquires an image of the thickness end face of the copper strip; when the rotating part 51 is at the third rotation angle, the vision acquisition end 61 acquires an image of the other side end face of the copper strip. The first and third rotation angles allow for real-time monitoring of the surface quality of the copper strip, enabling dynamic adjustment of the protective gas flow rate; the second rotation angle allows for real-time monitoring of the copper strip thickness, enabling dynamic adjustment of relevant parameters.

[0029] Specifically, this example incorporates a nitrogen protection mechanism 2 into the copper strip annealing device to effectively isolate oxygen, prevent oxidation of the copper strip after cooling, and ensure the surface quality of the copper strip. At the same time, a vision acquisition module 6 is added to the nitrogen protection mechanism 2 to monitor the surface quality and thickness of the copper strip in real time and dynamically adjust parameters such as nitrogen flow rate to ensure the production quality of the copper strip. Furthermore, by adding a cleaning module 7, dirt inside the protective channel 42 can be scraped off, preventing dirt from interfering with the image acquisition accuracy.

[0030] In an optional example, please refer to Figures 1 to 9 As shown, the cleaning module 7 includes a drive mechanism with a power ring 74 that can move along the direction of the protection channel 42. The rotor 72 is fixedly connected to the power ring 74. The power ring 74 has a first working position, a second working position, and a transition position. When the power ring 74 is in the first moving position, the power ring 74 is inserted and fixed to the rotating part 51. The power ring 74 rotates synchronously with the rotating part 51, causing the cleaning scraper 73 to move away from the visual acquisition end 61. At this time, the cleaning scraper 73 is away from the visual acquisition end 61 to avoid interfering with the visual acquisition process.

[0031] When the power ring 74 is in the second moving position, the power ring 74 disengages from the rotating part 51 and is fixedly inserted into the stator part 71. The power ring 74 and the cleaning scraper 73 remain in the current position. The rotating part 51 rotates, causing the cleaning scraper 73 and the rotating part 51 to move relative to each other, scraping away dirt from the inner cavity surface. After cleaning is completed, the power ring 74 disengages from the stator part 71 and returns to the first working position, waiting for the next round of collection or cleaning instructions.

[0032] When the power ring 74 is in the transition position, the rotating part 51 rotates to a set angle, and the power ring 74 is in a motion state between the first working position and the second working position.

[0033] Specifically, this example ensures that the cleaning scraper 73 avoids interference with image acquisition during visual acquisition by precisely switching the position of the power ring 74, while using the drive mechanism to automate the acquisition and cleaning process.

[0034] In an optional example, please refer to Figures 1 to 11 As shown, a spring 75 is fitted on the outer wall of the power ring 74. One end of the spring 75 abuts against the power ring 74, and the other end of the spring 75 abuts against the stator component 71. The elastic force of the spring 75 pushes the power ring 74 to move toward the rotor component 72, so that the power ring 74 keeps in contact with the rotating part 51 under normal conditions.

[0035] An electromagnetic ring 76 is fixed to the end of the stator component 71 that is close to the end away from the power ring 74. The electromagnetic ring 76 has a magnetic end 761 that can generate magnetic force. The magnetic end 761 can use magnetic force to move the power ring 74 in a direction away from the rotor component 72. The rotating part 51 is made of non-magnetic material, such as aluminum alloy or plastic. When the electromagnetic ring 76 is energized, the magnetic end 761 overcomes the spring force of the spring 75 through magnetic force, pushing the power ring 74 to move away from the rotor 72. When the rotating part 51 rotates to a specified angle, the vision acquisition end 61 acquires images. At this time, the electromagnetic ring 76 is de-energized, and the spring 75 pushes the power ring 74 to the first working position, where it contacts the rotating part 51 and rotates synchronously. The cleaning scraper 73 moves away from the vision acquisition end 61. After completing one round of image acquisition, the control system activates the electromagnetic ring 76. The magnetic end 761 generates magnetic force to overcome the spring force of the spring 75, pushing the power ring 74 to the second working position, where it contacts the stator 71. The power ring 74 drives the rotor 72 to rotate, and the cleaning scraper 73 cleans the vision acquisition end 61. After cleaning, the rotating part 51 rotates to a set angle, the electromagnetic ring 76 is de-energized, and the spring 75 pushes the power ring 74 back to the first working position.

[0036] Specifically, this example utilizes the preload of spring 75 to maintain the normal position of the power ring 74, while the electromagnetic ring 76 is only energized when needed, reducing continuous energy consumption and improving system efficiency. Furthermore, the electromagnetic ring 76 rapidly generates magnetic force when energized, and the spring 75 automatically resets after power is cut off, enabling the power ring 74 to move quickly and ensuring accurate and stable position switching.

[0037] In an optional example, please refer to Figures 1 to 11 As shown, the upper end of the rotating part 51 is provided with a positioning slot 511, and the lower end of the power ring 74 is provided with a positioning block 741. When the power ring 74 is in the first working position, the positioning block 741 is inserted and fixed in the positioning slot 511, so that the power ring 74 can rotate synchronously with the rotating ring. When the electromagnetic ring 76 is de-energized, the spring 75 pushes the power ring 74 to the first working position, and the positioning block 741 is inserted into the positioning slot 511. When the rotating part 51 rotates, the power ring 74 rotates synchronously through the insertion structure. The cleaning scraper 73 maintains a distance from the visual acquisition end 61 along with the rotor 72, without affecting image acquisition. When the control system activates the electromagnetic ring 76, the magnetic force overcomes the spring force of the spring 75, pushing the power ring 74 to move to the second working position. The positioning block 741 disengages from the positioning slot 511, the power ring 74 disengages from the rotating part 51, and the rotor 72 rotates to perform cleaning. Specifically, in this example, the power ring 74 and the rotating part 51 are rigidly connected during rotation through the mechanical insertion of the positioning slot 511 and the plug, avoiding slippage or asynchrony caused by insufficient friction, ensuring the positional accuracy of the cleaning scraper 73 during rotation. At the same time, during the copper strip conveying process, external vibration or airflow interference may cause the power ring 74 to shift. The positioning insertion structure can effectively resist such interference and ensure the stability of the drive mechanism.

[0038] In an optional example, please refer to Figures 1 to 12 As shown, the inner wall of the stator component 71 has several limiting slots 711, and the outer wall of the power ring 74 has a positioning flange 742. The outer wall of the power ring 74 also has several limiting protrusions 743 facing the stator component 71. When the power ring 74 is in the second working position, the limiting protrusions 743 are inserted into the limiting slots 711. The slots may be wedge-shaped, rectangular, or have other specific geometric shapes to ensure unidirectional insertion stability and prevent axial or circumferential displacement. When the power ring 74 is in the second working position, the power ring 74 and the stator component 71 achieve synchronous locking in both axial and circumferential directions, preventing relative rotation or displacement.

[0039] Specifically, this example ensures that the power ring 74 and the stator 71 are precisely positioned axially and circumferentially in the second working position by the insertion and engagement of the limiting protrusion 743 and the slot, thus avoiding relative displacement caused by external forces.

[0040] In an optional example, please refer to Figures 1 to 12 As shown, the bracket assembly 3 includes a support frame 31, on which two sets of symmetrically arranged support units 32 are fixed. The protective shell 4 includes two sets of protective tubes 43, which are fixedly connected to the corresponding support units 32. The two sets of support units 32 have a certain installation distance. The rotating part 51 is set within the installation distance. The two ends of the rotating part 51 are connected to the corresponding support units 32 by bearing connection. The rotating part 51 and the inner cavity of the two sets of protective tubes 43 combine to form a protective channel 42. The support unit 32 includes several support columns 321 and two top end plates 322. The top end plates 322 are fixed to both ends of the support columns 321 by bolts. A connecting bearing is inserted and fixed on the top end plates 322 of the two support units 32 on one side. The rotating part 51 is inserted and fixed to the inner ring of the connecting bearing. The top end plate 322 has an insertion groove, and the protective tube 43 is inserted and fixed in the insertion groove. The rotating part 51 is made of non-magnetic material, such as aluminum alloy or plastic, and the rotating part 51 adopts a tubular structure.

[0041] Specifically, this example adopts a modular structure design, which effectively reduces the manufacturing difficulty and production cost of the bracket assembly 3.

[0042] In an optional example, please refer to Figures 1 to 13 As shown, a sliding groove 712 is formed on the stator component 71 along the direction of the protection channel 42. A through hole 713 is formed at the bottom of the sliding groove 712, and the through hole 713 penetrates the stator component 71 along the direction of the protection channel 42. A sliding ring 34 is fixed to the upper end of the rotating part 51 by bolt connection. The sliding ring 34 is rotatably inserted into the sliding groove 712. A limiting flange 714 extending towards the center line is provided in the sliding groove 712. The limiting flange 714 is used to limit the sliding of the sliding ring 34. The sliding groove 712 is circular, and the sliding ring 34 can rotate and move along the sliding groove 712.

[0043] Specifically, this example achieves multi-dimensional constraint and transmission integration of the movement of the rotating part 51 through the synergistic effect of the sliding groove 712 and the limiting flange 714 of the stator 71, which simplifies the relevant structure and reduces the manufacturing difficulty and cost.

[0044] In an optional example, please refer to Figures 1 to 13 As shown, the electromagnetic ring 76 is fixed to the upper end of the stator 71 by bolt connection, and the power ring 74 is made of a material that can be magnetically attracted.

[0045] Specifically, this example simplifies the structure and reduces manufacturing difficulty and cost by sealing the stator component 71 with an electromagnetic ring 76.

[0046] In an optional example, please refer to Figures 1 to 13 As shown, the vision acquisition module 6 includes a drive motor 62 fixedly connected to the support unit 32. A drive gear 63 is fixed on the output shaft of the drive motor 62. A driven gear ring 64 is fitted on the outer wall of the rotating part 51. The drive gear 63 meshes with the driven gear ring 64. A mounting flange 512 is provided on the outer wall of the rotating part 51. An observation hole 513 communicating with the inner cavity of the rotating part 51 is opened on the mounting flange 512. A sealing sheet 514 is fixed at one end of the observation hole 513 facing the inner cavity of the rotating part 51. The vision acquisition end 61 is fixed on the mounting flange 512 and extends into the observation hole 513. The sealing sheet 514 is made of transparent material; an extension flange 515 is provided on the outer wall of the rotating part 51, and a connecting key 516 is provided at the upper end of the extension flange 515. The driven gear ring 64 is inserted into the outer wall of the rotating part 51, and a connecting groove is provided on the inner wall of the driven gear ring 64. The connecting key 516 is inserted into the connecting groove, and the lower end of the driven gear ring 64 abuts against the upper end of the extension flange 515. When the drive motor 62 is working, the output shaft of the drive motor 62 drives the drive gear 63 to rotate, and the drive gear 63 drives the driven gear ring 64 and the rotating part 51 to rotate synchronously, forming the core mechanism of rotational motion.

[0047] Specifically, in this example, the outer wall of the rotating part 51 is provided with a mounting flange 512, which facilitates the insertion and installation of the visual acquisition end 61. The sealing plate 514 is fixed inside the observation hole 513 to form a sealing barrier to prevent dust, liquid and other external substances from entering the interior. It may also meet the protection or light transmission requirements of the optical window. Furthermore, the synchronous rotation and stable connection between the rotating part 51 and the driven gear ring 64 are achieved through the meshing of the drive gear 63 and the driven gear ring 64, ensuring the smooth movement of the visual acquisition end 61.

[0048] In an optional example, please refer to Figures 1 to 13 As shown, a liquid supply channel 517 is provided on the outer wall of the rotating part 51, and the liquid supply channel 517 is connected to the inner cavity of the rotating part 51. An external liquid supply device is connected to the liquid supply channel 517 via a pipeline, and the liquid supply device is used to provide cleaning fluid.

[0049] Specifically, this example improves image acquisition accuracy by adding a liquid supply channel 517, which allows the cleaning fluid to be sprayed onto the sealing plate 514.

[0050] In summary, this invention effectively isolates oxygen by adding a nitrogen protection mechanism 2 to the copper strip annealing device, preventing oxidation of the copper strip during high temperature and cooling processes and ensuring the surface quality of the copper strip. At the same time, the addition of a vision acquisition module 6 to the nitrogen protection mechanism 2 enables real-time monitoring of the surface quality and thickness of the copper strip, and dynamic adjustment of parameters such as nitrogen flow rate, ensuring the production quality of the copper strip. Furthermore, the addition of a cleaning module 7 can remove dirt from the surface of the sealing sheet 514, preventing dirt from interfering with the image acquisition accuracy.

[0051] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0052] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A copper strip annealing apparatus, comprising a copper strip conveying mechanism and a nitrogen protection mechanism (2) fixedly connected to a frame (1), characterized in that, The nitrogen protection mechanism (2) includes: The bracket assembly (3) is fixedly connected to the frame (1); The protective shell (4) is fixedly connected to the bracket assembly (3) and has a protective channel (42) arranged along the length direction of the bracket assembly (3). The copper strip passes through the protective shell (4) along the protective channel (42). The rotating module (5) is fixedly connected to the bracket assembly (3) and has a rotating part (51) disposed in the protection channel (42). The rotation center line of the rotating part (51) coincides with the center line of the protection channel (42). The rotating part (51) has a first rotation angle, a second rotation angle and a third rotation angle. The visual acquisition module (6) is fixedly connected to the rotating part (51) and has a visual acquisition end (61) capable of acquiring images in the protection channel (42); The cleaning module (7) has a stator (71) and a rotor (72). The stator (71) is fixed in the protection channel (42). The rotor (72) is rotatably mounted in the protection channel (42) and can move along the direction of the protection channel (42). A cleaning scraper (73) for cleaning the vision acquisition end (61) is fixed on the rotor (72). When the rotating part (51) is at the first rotation angle, the visual acquisition end (61) acquires an image of one side end face of the copper strip; When the rotating part (51) is at the second rotation angle, the vision acquisition end (61) acquires the thickness end face image of the copper strip; When the rotating part (51) is at the third rotation angle, the visual acquisition end (61) acquires an image of the other end face of the copper strip.

2. The copper strip annealing apparatus according to claim 1, characterized in that, The cleaning module (7) includes a drive mechanism with a power ring (74) that can move along the direction of the protection channel (42). The rotor (72) is fixedly connected to the power ring (74). The power ring (74) has a first working position and a second working position. When the power ring (74) is in the first moving position, the power ring (74) abuts against the rotating part (51) and rotates synchronously with the rotating part (51), so that the cleaning scraper (73) moves away from the direction of the visual acquisition end (61). When the power ring (74) is in the second moving position, the power ring (74) abuts against the stator (71), and the stator (71) remains in the current position, so that the cleaning scraper (73) and the rotating part (51) maintain relative movement.

3. The copper strip annealing apparatus according to claim 2, characterized in that, A spring (75) is fitted on the outer wall of the power ring (74). One end of the spring (75) abuts against the power ring (74), and the other end of the spring (75) abuts against the stator (71). The elastic force of the spring (75) pushes the power ring (74) to move toward the rotor (72). An electromagnetic ring (76) is fixed to the end of the stator (71) that is close to and away from the power ring (74). The electromagnetic ring (76) has a magnetic end (761) that can generate magnetic force. The magnetic end (761) can make the power ring (74) move away from the rotor (72) through magnetic force.

4. The copper strip annealing apparatus according to claim 3, characterized in that, The upper end of the rotating part (51) is provided with a positioning slot (511), and the lower end of the power ring (74) is provided with a positioning plug (741). When the power ring (74) is in the first working position, the positioning plug (741) is inserted and fixed in the positioning slot (511), so that the power ring (74) can rotate synchronously with the rotating ring.

5. The copper strip annealing apparatus according to claim 4, characterized in that, The stator component (71) has several limiting slots (711) on its inner wall, the power ring (74) has a positioning flange (742) on its outer wall, and the power ring (74) has several limiting protrusions (743) on its outer wall facing the stator component (71). When the power ring (74) is in the second working position, the limiting protrusions (743) are inserted into the limiting slots (711).

6. The copper strip annealing apparatus according to claim 5, characterized in that, The bracket assembly (3) includes a support frame (31), on which two sets of symmetrically arranged support units (32) are fixed. The protective shell (4) includes two sets of protective tubes (43), which are fixedly connected to the corresponding support units (32). The two sets of support units (32) have a certain installation distance. The rotating part (51) is set within the installation distance. The two ends of the rotating part (51) are connected to the corresponding support units (32) by rotation. The rotating part (51) and the inner cavity of the two sets of protective tubes (43) combine to form a protective channel (42).

7. The copper strip annealing apparatus according to claim 6, characterized in that, The stator (71) has a sliding groove (712) along the direction of the protection channel (42). The bottom of the sliding groove (712) has a through hole (713). The through hole (713) passes through the stator (71) along the direction of the protection channel (42). The upper end of the rotating part (51) is fixed with a sliding ring (34) by bolt connection. The sliding ring (34) is rotatably inserted into the sliding groove (712). The sliding groove (712) is provided with a limiting flange (714) extending towards the center line. The limiting flange (714) is used to limit the sliding of the sliding ring (34).

8. The copper strip annealing apparatus according to claim 7, characterized in that, The electromagnetic ring (76) is fixed to the upper end of the guide base, and the power ring (74) is made of a material that can be magnetically attracted.

9. The copper strip annealing apparatus according to claim 6, characterized in that, The visual acquisition module (6) includes a drive motor (62) fixedly connected to the support unit (32). A drive gear (63) is fixed on the output shaft of the drive motor (62). A driven gear ring (64) is fitted on the outer wall of the rotating part (51). The drive gear (63) meshes with the driven gear ring (64). An installation flange (512) is provided on the outer wall of the rotating part (51). An observation hole (513) communicating with the inner cavity of the rotating part (51) is opened on the installation flange (512). A sealing plate (514) is fixed at one end of the observation hole (513) facing the inner cavity of the rotating part (51). The visual acquisition end (61) is fixed on the installation flange (512) and extends into the observation hole (513).

10. The copper strip annealing apparatus according to claim 1, characterized in that, A liquid supply channel (517) is provided on the outer wall of the rotating part (51), and the liquid supply channel (517) is connected to the inner cavity of the rotating part (51).

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