A copper wire surface defect on-line detection mechanism

Abstract

The application relates to the technical field of wire surface defect detection, in particular to a copper wire surface defect online detection mechanism, which comprises a detection equipment body, a wire guiding mechanism for guiding the copper wire is arranged outside the detection equipment body, and a marking mechanism for marking the copper wire is arranged outside the detection equipment body. The copper wire surface defect online detection mechanism adopts two marking structures which simultaneously move towards each other and mark, so that the coverage of the marking is enlarged, the defects can be marked, the marking structures simultaneously work, intermittent ink dot sequences are formed, workers or equipment can be facilitated to identify in a subsequent process, and automatic detection and marking of copper wire surface defects are realized, the workload and time of manual detection and marking are reduced, workers do not need to stare at the copper wire for a long time for one-by-one checking, only need to concentrate on processing of defective products according to the marking, production efficiency is greatly improved, and production cost is reduced.

Description

Technical Field

[0001] This application relates to the field of wire surface defect detection technology, and in particular to an online detection mechanism for copper wire surface defects. Background Technology

[0002] Visual inspection of the outer surface of wires is a crucial quality control step in industrial production. The main reasons are as follows: to ensure product performance and safety, defects such as scratches, dents, protrusions, damage, exposed copper, and uneven insulation layer thickness on the surface will seriously affect its insulation performance and withstand voltage rating. Furthermore, even minor scratches, cracks, or contamination on the surface can increase signal transmission loss, affecting communication quality and stability. Therefore, it is necessary to inspect the surface of wires for defects. A search revealed that patent document CN117269062A discloses an online visual inspection device for surface defects, relating to the field of defect detection technology. This online visual inspection device includes a visual inspection unit, with a fixed plate fixedly connected to the back side of the unit, and a rotating mechanism fixedly connected to the outer wall of the fixed plate. This online visual inspection device accelerates the removal of impurities from the wire during operation, speeding up the cleaning of impurities on the wire, reducing the presence of impurities and minimizing errors in detection accuracy caused by impurities.

[0003] Regarding the aforementioned technologies, the inventors have discovered at least the following problems: real-time sorting is not possible; after the visual inspection equipment identifies a defect, there is no marking function; even if the system detects a defect, it cannot immediately mark the problematic wire physically, requiring manual searching and handling based on system alarms, resulting in extremely low efficiency and negating the real-time advantage of online inspection. Furthermore, since wire is a continuously produced product, if the inspection system detects a defect at a certain point in time but does not mark it at the corresponding physical location, it is difficult for operators to accurately locate the specific position of the defect on the coiled wire, causing significant difficulties for subsequent repair, removal, or analysis. Therefore, an online inspection mechanism for copper wire surface defects is proposed to solve the aforementioned problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies and improve detection efficiency, this application provides a collaborative method for multiple automatic marking techniques, which greatly improves production efficiency and marking accuracy, reduces labor costs and human error, and solves the problems mentioned above.

[0005] This application provides an online detection mechanism for surface defects in copper wires, employing the following technical solution: An online inspection mechanism for surface defects of copper wire includes an inspection equipment body, a wire guiding mechanism for guiding the copper wire is provided on the outside of the inspection equipment body, a marking mechanism for marking the copper wire is provided on the outside of the inspection equipment body, wherein a driving component is provided between the marking mechanism and the wire guiding mechanism, and a guide seat for cooperating with the marking mechanism is also provided on the outside of the inspection equipment body. The marking mechanism consists of marking structure one and marking structure two. Marking structure one includes a mounting base. A connecting rod is fixed to the outer wall of the mounting base, and a guide wheel connected to the driving assembly is rotatably mounted on the top of the connecting rod. A piston, a liquid storage tank, and a nozzle are provided on the side wall of the mounting base. An infusion pipe is provided on the piston and connected to the liquid storage tank and the nozzle respectively. An abutment member that cooperates with the guide base is provided on the outside of the piston. The drive assembly includes a vertical seat and a guide plate disposed above the mounting base. The vertical seat and the guide plate are fixedly connected. One side of the vertical seat is provided with an arc-shaped contact surface for use with the wire guide mechanism. The guide plate has a guide groove that rolls with the guide wheel.

[0006] Optionally: A mounting platform is fixed on the outer wall of the testing equipment body, and a guide groove for guiding the mounting seat is provided on the mounting platform. A guide rod for limiting the position of the guide plate is also installed on the outer wall of the testing equipment body.

[0007] Optionally: The wire guide mechanism includes a lower wire guide frame and an upper wire guide frame fixed to the wire outlet side of the detection equipment body. A swing arm and an electric push rod are hinged on the upper wire guide frame, and the output end of the electric push rod is hinged to the outer wall of the swing arm. A lower wire guide wheel is installed on the lower wire guide frame, and an upper wire guide wheel is installed on the upper wire guide frame. The upper wire guide wheel and the lower wire guide wheel are distributed vertically.

[0008] Optionally: The vertical seat is located in front of the upper guide wheel, and the upper guide wheel swings upward through an electric push rod and abuts against the arc-shaped contact surface on the vertical seat.

[0009] Optionally: the mounting base is slidably connected to the guide groove, the piston component includes a plug cylinder fixed to the side wall of the mounting base, a piston extending outward is slidably disposed inside the plug cylinder, the bottom end of the piston is connected to the abutment component, two check valves are fixed on the outer wall of the plug cylinder, and there are two infusion tubes, the ends of the two infusion tubes away from the reservoir and the nozzle are respectively connected to the two check valves.

[0010] Optionally: the piston is T-shaped, and a buffer spring connected to the outer wall of the plug cylinder is installed on the piston extending out of the outer surface of the plug cylinder; the number of the marking structure one is two.

[0011] Optionally: The top side of the guide seat is provided with a wavy surface and a straight surface for use with the abutment member. The abutment member includes a wheel frame fixed to the end of the piston. A roller is installed on the inner bearing of the wheel frame. The rollers on the two marking structures respectively roll in cooperation with the wavy surface and the straight surface.

[0012] Optionally: The second marking structure consists of an intermittent component and an abutment component. The abutment component is used in conjunction with the intermittent component. The intermittent component is installed on a support base inside the mounting base. An active dial and a driven disc are rotatably mounted on the support base. Several equally spaced marking blocks are installed on the outer surface of the driven disc. A lever for driving the driven disc is installed on the outside of the active dial. Several equally spaced radial grooves that intermittently cooperate with the lever are opened inside the driven disc.

[0013] Optionally, the abutment includes a sleeve fixed inside the mounting base. The sleeve has a telescopic rod and a drive shaft inside. One end of the drive shaft is fixed to the outer wall of the active dial. One end of the telescopic rod extends to the outside of the mounting base, and the other end of the telescopic rod is sleeved on the outer surface of the drive shaft.

[0014] Optionally: The end of the telescopic rod away from the sleeve is fixed with an abutment block, the telescopic rod has an extension groove that communicates with the outside, a guide wheel is rotatably installed on the inner side of the extension groove, the drive shaft has a guide groove that is spirally arranged around the outer surface and rolls with the guide wheel, and a return spring that is rotatably connected to the end of the drive shaft is installed on the inner wall of the extension groove.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. This invention employs two marking structures that move simultaneously towards each other and mark defects. This not only expands the marking coverage area, ensuring that defects are always marked, but also creates a discontinuous sequence of ink dots that is more noticeable than a single ink dot, facilitating identification by workers or equipment in subsequent processes. This achieves automatic detection and marking of defects on the copper wire surface, reducing the workload and time required for manual inspection and marking. Workers no longer need to stare at the copper wires for extended periods to inspect each one; they can simply process defective products based on the marking information, greatly improving production efficiency and reducing production costs.

[0016] 2. This invention transforms linear collisions into precise, intermittent rotational motions through the spiral guide groove and grooved wheel mechanism in the marking structure two, thereby achieving counting. It can record the number of times a marking action occurs, i.e. the number of defects, which facilitates quality traceability. Workers do not need to constantly monitor the production line; they only need to periodically check the numbers on the counter after each roll of wire is produced to quickly know the total number of defects in that roll of wire, greatly facilitating quality statistics.

[0017] 3. In this invention, the upper guide wheel is installed at the other end of the swing arm and cooperates with the lower guide wheel to guide the transport of copper wire. When the electric push rod extends, it pushes the swing arm to swing, causing the upper guide wheel and the lower guide wheel to separate. At this time, the transport speed of the copper wire slows down, providing sufficient marking time for the marking mechanism. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the overall structure of this application; Figure 2 This is a schematic diagram of the conductor mechanism of this application; Figure 3 This is a schematic diagram of the marking structure of this application; Figure 4 This is a schematic diagram of the piston component of this application; Figure 5 This is a schematic diagram of the driver component of this application; Figure 6 This is a schematic diagram of the second marker structure of this application; Figure 7 This is a cross-sectional view of the sleeve in this application.

[0019] Explanation of reference numerals in the attached figures: 1. Testing equipment body; 11. Mounting platform; 12. Guide chute; 2. Wire guide mechanism; 21. Lower wire guide frame; 22. Upper wire guide frame; 23. Swing arm; 24. Lower wire guide wheel; 25. Upper wire guide wheel; 26. Electric push rod; 3. Marking structure one; 31. Mounting base; 32. Connecting rod; 33. Guide wheel one; 34. Piston component; 341. Plug cylinder; 342. Piston; 343. Check valve; 344. Buffer spring; 35. Liquid storage tank; 36. Abutment component; 361. Wheel frame; 362. Roller; 37. Infusion tube; 38. Nozzle; 4. Drive assembly; 41. Vertical seat; 42. Guide plate; 43. Guide groove; 44. Arc-shaped contact surface; 5. Guide seat; 51. Wavy surface; 52. Straight surface; 6. Guide rod; 7. Marking structure two; 71. Support seat; 72. Active dial; 73. Driven disc; 74. Lever; 75. Radial groove; 76. Marking block; 77. Sleeve; 78. Telescopic rod; 79. Contact block; 710. Drive shaft; 711. Guide wheel two; 712. Guide slide; 713. Extension groove; 714. Return spring. Detailed Implementation

[0020] The following is in conjunction with the appendix Figures 1 to 7 This application will be described in further detail.

[0021] This application discloses an online detection mechanism for surface defects in copper wires. Please refer to... Figures 1-7 An online inspection mechanism for surface defects in copper wire includes an inspection equipment body 1. An external guide wire mechanism 2 is installed on the exterior of the inspection equipment body 1 to guide the copper wire. It should be noted that a vision sensor, such as an industrial camera, inside the inspection equipment body 1 performs real-time scanning inspection of the wire surface. Specifically, the guide wire mechanism 2 includes a lower guide wire frame 21 and an upper guide wire frame 22 fixed to the wire outlet side of the inspection equipment body 1. A swing arm 23 and an electric push rod 26 are hinged to the upper guide wire frame 22, and the output end of the electric push rod 26 is hinged to the outer wall of the swing arm 23. A lower guide wheel 24 is installed on the lower guide wire frame 21, and an upper guide wheel 25 is installed on the upper guide wire frame 22. The upper and lower guide wheels 25 and 24 are distributed vertically, forming a relatively gentle conveying channel. When the copper wire passes between the upper and lower guide wheels 24, the compression and friction forces are relatively uniform, effectively reducing scratches, wear, and other damage to the wire surface, ensuring the quality of the copper wire. It is worth mentioning that the upper guide wheel 25 is installed at the other end of the swing arm 23 and cooperates with the lower guide wheel 24 to guide the delivery of copper wire. When the electric push rod 26 extends, it pushes the swing arm 23 to swing, causing the upper guide wheel 25 to separate from the lower guide wheel 24. At this time, the delivery speed of the copper wire slows down, providing sufficient marking time for marking. After marking is completed, the electric push rod 26 is controlled to retract, so that the upper guide wheel 25 and the lower guide wheel 24 are clamped again, restoring the normal delivery speed of the copper wire.

[0022] To enable online marking of copper wires, a marking mechanism for marking copper wires is provided on the outside of the testing equipment body 1. A drive component 4 is provided between the marking mechanism and the wire mechanism 2. A guide seat 5 for use with the marking mechanism is also provided on the outside of the testing equipment body 1. The marking mechanism consists of marking structure one 3 and marking structure two 7. Marking structure one 3 includes a mounting base 31, with a connecting rod 32 fixed to the outer wall of the mounting base 31. A guide wheel 33 connected to the drive assembly 4 is rotatably mounted on the top of the connecting rod 32. A piston 34, a liquid storage tank 35, and a nozzle 38 are provided on the side wall of the mounting base 31. An infusion pipe 37 is provided on the piston 34, which is connected to the liquid storage tank 35 and the nozzle 38 respectively. An abutment 36 that cooperates with the guide seat 5 is provided on the outside of the piston 34. A mounting platform 11 is fixed on the outer wall of the detection equipment body 1. A guide groove 12 is provided on the mounting platform 11 to guide the mounting base 31. In use, the guide groove 12 guides the mounting base 31, so that the mounting base 31 can only move along a predetermined straight line. By restricting the degree of freedom of the mounting base 31 through guidance, it is prevented from shaking or deviating during movement, thereby ensuring that marking structure one 3 and marking structure two 7 can stably and accurately mark copper wires. Specifically, the mounting base 31 is slidably connected to the guide groove 12. The piston component 34 includes a plug cylinder 341 fixed to the side wall of the mounting base 31. A piston 342 extending outward is slidably disposed inside the plug cylinder 341. The bottom end of the piston 342 is connected to the abutment member 36. Two check valves 343 are fixed on the outer wall of the plug cylinder 341. There are two infusion tubes 37. The ends of the two infusion tubes 37 away from the reservoir 35 and the nozzle 38 are respectively connected to the two check valves 343. The check valves 343 can control the unidirectional flow of liquid. When the piston 342 moves inside the plug cylinder 341, it can ensure that the marking liquid is accurately drawn from the reservoir 35 into the plug cylinder 341 and then sprayed out through the nozzle 38, realizing the precise delivery and spraying of the marking liquid and avoiding liquid backflow or leakage.

[0023] It should be noted that the piston 342 is T-shaped, and a buffer spring 344 connected to the outer wall of the stopper cylinder 341 is installed on the outer surface of the piston 342 extending outward from the stopper cylinder 341. There are two marking structures 3. The top side of the guide seat 5 is provided with a wavy surface 51 and a straight surface 52 that cooperate with the abutment member 36. The abutment member 36 includes a wheel frame 361 fixed to the end of the piston 342. A roller 362 is installed on the inner bearing of the wheel frame 361. The rollers 362 on the two marking structures 3 roll in cooperation with the wavy surface 51 and the straight surface 52, respectively. When the marking structure 3 moves, the abutment member 36 interacts with the guide seat 5, triggering the piston 342 to move inside the stopper cylinder 341, thereby realizing the automatic spraying of the marking liquid. This eliminates the need for manual intervention in the marking process, improving the automation level and production efficiency of marking.

[0024] To achieve the linkage between the upper guide wheel 25 and the marking mechanism, the drive assembly 4 includes a vertical seat 41 and a guide plate 42 mounted above the mounting base 31. The vertical seat 41 and the guide plate 42 are fixedly connected. One side of the vertical seat 41 is provided with an arc-shaped abutment surface 44 for use with the guide mechanism 2. The guide plate 42 has a guide groove 43 that rolls with the guide wheel 33. A guide rod 6 is also installed on the outer wall of the detection equipment body 1 to limit the movement of the guide plate 42. The guide rod 6 can limit the movement range of the guide plate 42 and prevent the guide plate 42 from excessively shifting or shaking due to uneven force or other reasons during the linkage process. The vertical seat 41 is located in front of the upper guide wheel 25. The upper guide wheel 25 swings upward through the output of the electric push rod 26 and abuts against the arc-shaped abutment surface 44 on the vertical seat 41, so that the movement of the upper guide wheel 25 can accurately trigger the linkage with the drive assembly 4. The electric push rod 26 can precisely control the swing amplitude and timing of the upper guide wheel 25. When the upper guide wheel 25 reaches the predetermined position and contacts the arc-shaped contact surface 44, the subsequent linkage process can be stably started, ensuring that the marking mechanism performs the marking operation under suitable copper wire conditions, thereby improving the accuracy and reliability of the entire equipment. Specifically, there are two guide grooves 43, and the two guide grooves 43 are inclined and symmetrically distributed.

[0025] To further improve the marking effect, the marking structure 7 consists of an intermittent component and an abutment component. The abutment component 36 is used in conjunction with the intermittent component. The intermittent component is installed in a support base 71 inside the mounting base 31. An active dial 72 and a driven disc 73 are rotatably mounted on the support base 71. Several equally spaced marking blocks 76 are installed on the outer surface of the driven disc 73. A lever 74 that drives the driven disc 73 is installed on the outside of the active dial 72. Several equally spaced radial grooves 75 that intermittently engage with the lever 74 are opened inside the driven disc 73. Specifically, the abutment component 36 includes a sleeve 77 fixed inside the mounting base 31. A telescopic rod 78 and a drive shaft 710 are provided inside the sleeve 77. One end of the drive shaft 710 is fixed to the outer wall of the active dial 72. One end of the telescopic rod 78 extends to the outside of the mounting base 31, and the other end of the telescopic rod 78 is sleeved on the outer surface of the drive shaft 710. The active dial 72 rotates, and its lever 74 intermittently engages with the radial groove 75 on the driven dial 73. This intermittent motion mechanism can precisely control the timing of the driven dial 73's rotation and the duration of its pauses. When the lever 74 enters the radial groove 75, it drives the driven dial 73 to rotate at a certain angle, causing a specific marker block 76 to reach the marking position. When the lever 74 leaves the radial groove 75, the driven dial 73 stops rotating, and the marker block 76 remains stable in the marking position. This ensures that the marking action is performed at the precise time, avoiding the problems of blurry or overlapping marks that may occur with continuous marking, and improving the clarity and accuracy of the markings.

[0026] The telescopic rod 78 has a stop block 79 fixed at the end away from the sleeve 77. The telescopic rod 78 has an extension groove 713 that communicates with the outside. A guide wheel 711 is rotatably installed on the inner side of the extension groove 713. The drive shaft 710 has a guide groove 712 that is spirally arranged around the outer surface and rolls with the guide wheel 711. A return spring 714 that is rotatably connected to the end of the drive shaft 710 is installed on the inner wall of the extension groove 713.

[0027] It should be noted that this marking mechanism enables automatic marking of copper wires. When the inspection equipment detects defects on the surface of the copper wire or when specific information needs to be marked, the drive assembly 4 automatically starts, driving the marking structure 3 and marking structure 7 to move. Simultaneously, the piston 34 automatically operates under the cooperation of the contact member 36 and the guide seat 5, drawing the marking liquid from the storage tank 35 and spraying it out through the nozzle 38, completing the marking of the copper wire. The entire process requires no manual intervention, greatly improving production efficiency and marking accuracy.

[0028] In addition, to better record the marks, an active dial 72 and a driven dial 73 can be added to achieve progressive driving.

[0029] Combined with appendix Figures 1 to 7 The working principle of the above embodiments is as follows: First, the copper wire passes through the body 1 of the testing equipment. The vision sensor inside the body scans and detects the surface of the wire in real time. At this time, the upper guide wheel 25 of the wire mechanism 2 is in the downward position under the action of the electric push rod 26 and does not contact the drive component 4. The copper wire passes smoothly between the upper guide wheel 25 and the lower guide wheel 24. When the vision system inside the inspection equipment 1 detects a defect on the surface of the copper wire, it sends an electrical signal to the electric push rod 26 of the wire guide mechanism 2. The electric push rod 26 retracts, pulling the swing arm 23 upward. At this time, the upper guide wheel 25 abuts against the arc-shaped contact surface 44 of the vertical seat 41 in front of it. According to the lever or guide principle, this downward force will force the entire drive assembly 4 to produce a forward displacement along the guide rod 6. Through the rolling engagement of its guide groove 43 with the guide wheel 33, it pushes the mounting seats 31 of the two marking structures 3 to slide along the guide groove 12. The movement of the mounting seats 31 causes the roller 362 in the bottom contact member 36 to roll into engagement with the guide seat 5. When the two marking structures 1 and 3 are displaced relative to each other, not only will two sets of marking functions be generated, but the marking structure 2 and 7 will also be driven to record the marking. First, the roller 362 of the right marking structure 1 and 3 rolls with the wave surface 51. The wave-shaped protrusion will periodically push the roller 362 and the piston 342 connected to it upward. When the piston 342 rises, ink is drawn from the liquid storage tank 35 through the check valve 343 at one end. When the piston 342 is pressed down by the buffer spring 344, the ink is pressed into the nozzle 38 through another check valve 343 and the liquid delivery pipe 37 and sprayed onto the copper wire surface below to form intermittent ink dot markings. As the two marking structures 3 approach each other, the left abutment 36 will also enter the wave surface 51 on the guide seat 5, and thus mark together with the right marking structure 3. When the two marking structures 1 and 3 approach each other to a certain distance, the mounting seat 31 on one of the marking structures 1 and 3 will abut against the abutment block 79 in the marking structure 2 and 7. The abutment block 79 is squeezed back, which drives the telescopic rod 78 to retract. During the retraction process, the guide wheel 2 and 711 roll in the spiral guide groove 712, converting the linear motion into the rotational motion of the drive shaft 710. The drive shaft 710 rotates, which drives the active dial 72 to rotate. The lever 74 on it intermittently engages in the radial groove 75 of the driven disk 73, driving the driven disk 73 to rotate intermittently. Every time the driven disk 73 rotates by an angle, a marking block 76 on its outer surface will be recorded once, which makes it easier for subsequent staff to query the marking location and quantity.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An online inspection mechanism for surface defects of copper wire, comprising an inspection equipment body (1), characterized in that: The outer side of the detection equipment body (1) is provided with a wire guide mechanism (2) for guiding copper wires, and the outer side of the detection equipment body (1) is provided with a marking mechanism for marking copper wires. A drive component (4) is provided between the marking mechanism and the wire guide mechanism (2). The outer side of the detection equipment body (1) is also provided with a guide seat (5) for use with the marking mechanism. The marking mechanism consists of marking structure one (3) and marking structure two (7). Marking structure one (3) includes a mounting base (31). A connecting rod (32) is fixed on the outer wall of the mounting base (31), and a guide wheel one (33) connected to the drive assembly (4) is rotatably mounted on the top of the connecting rod (32). A piston (34), a liquid storage tank (35) and a nozzle (38) are provided on the side wall of the mounting base (31). An infusion tube (37) is provided on the piston (34) and is connected to the liquid storage tank (35) and the nozzle (38) respectively. An abutment (36) is provided on the outside of the piston (34) and is used in conjunction with the guide seat (5). The drive assembly (4) includes a vertical seat (41) and a guide plate (42) disposed above the mounting base (31). The vertical seat (41) and the guide plate (42) are fixedly connected. One side of the vertical seat (41) is provided with an arc-shaped contact surface (44) for use with the wire guide mechanism (2). The guide plate (42) is provided with a guide groove (43) for rolling cooperation with the guide wheel (33).

2. The online detection mechanism for surface defects of copper wire according to claim 1, characterized in that: The outer wall of the testing equipment body (1) is fixed with a mounting platform (11), and the mounting platform (11) is provided with a guide groove (12) for guiding the mounting seat (31). The outer wall of the testing equipment body (1) is also equipped with a guide rod (6) for limiting the guide plate (42).

3. The online detection mechanism for surface defects of copper wire according to claim 1, characterized in that: The wire guide mechanism (2) includes a lower wire guide frame (21) and an upper wire guide frame (22) fixed to the wire outlet side of the body (1) of the detection equipment. A swing arm (23) and an electric push rod (26) are hinged on the upper wire guide frame (22), and the output end of the electric push rod (26) is hinged to the outer wall of the swing arm (23). A lower wire guide wheel (24) is installed on the lower wire guide frame (21), and an upper wire guide wheel (25) is installed on the upper wire guide frame (22). The upper wire guide wheel (25) and the lower wire guide wheel (24) are distributed vertically.

4. The online detection mechanism for surface defects of copper wire according to claim 3, characterized in that: The vertical seat (41) is located in front of the upper guide wheel (25). The upper guide wheel (25) swings upward through the output of the electric push rod (26) and abuts against the arc-shaped contact surface (44) on the vertical seat (41).

5. The online detection mechanism for surface defects of copper wire according to claim 2, characterized in that: The mounting base (31) is slidably connected to the guide groove (12). The piston component (34) includes a plug cylinder (341) fixed on the side wall of the mounting base (31). A piston (342) extending outward is slidably disposed inside the plug cylinder (341). The bottom end of the piston (342) is connected to the abutment (36). Two check valves (343) are fixed on the outer wall of the plug cylinder (341). There are two infusion tubes (37). The ends of the two infusion tubes (37) away from the reservoir (35) and the nozzle (38) are respectively connected to the two check valves (343).

6. The online detection mechanism for surface defects of copper wire according to claim 5, characterized in that: The piston (342) is T-shaped. The piston (342) extends out of the outer surface of the plug cylinder (341) and is equipped with a buffer spring (344) connected to the outer wall of the plug cylinder (341). There are two marking structures (3).

7. The online detection mechanism for surface defects of copper wire according to claim 6, characterized in that: The top side of the guide seat (5) is provided with a wave surface (51) and a straight surface (52) for use with the abutment (36). The abutment (36) includes a wheel frame (361) fixed to the end of the piston (342). The inner bearing of the wheel frame (361) is equipped with a roller (362). The rollers (362) on the two marking structures (3) respectively roll in cooperation with the wave surface (51) and the straight surface (52).

8. The online detection mechanism for surface defects of copper wire according to claim 1, characterized in that: The marking structure 2 (7) consists of an intermittent component and an abutment component. The abutment component (36) is used in conjunction with the intermittent component. The intermittent component is installed on the support base (71) inside the mounting base (31). The support base (71) is rotatably mounted with an active dial (72) and a driven disk (73). The outer surface of the driven disk (73) is equipped with several equally spaced marking blocks (76). The outside of the active dial (72) is equipped with a lever (74) that drives the driven disk (73). The inside of the driven disk (73) is provided with several equally spaced radial grooves (75) that intermittently cooperate with the lever (74).

9. The online detection mechanism for surface defects of copper wire according to claim 8, characterized in that: The abutment (36) includes a sleeve (77) fixed inside the mounting base (31). The sleeve (77) is provided with a telescopic rod (78) and a drive shaft (710). One end of the drive shaft (710) is fixed to the outer wall of the active dial (72). One end of the telescopic rod (78) extends to the outside of the mounting base (31), and the other end of the telescopic rod (78) is sleeved on the outer surface of the drive shaft (710).

10. The online detection mechanism for surface defects of copper wire according to claim 9, characterized in that: The telescopic rod (78) has an abutment block (79) fixed at one end away from the sleeve (77). The telescopic rod (78) has an extension groove (713) that communicates with the outside. A guide wheel (711) is rotatably installed on the inner side of the extension groove (713). The drive shaft (710) has a guide groove (712) that is spirally arranged around the outer surface and rolls with the guide wheel (711). A return spring (714) that is rotatably connected to the end of the drive shaft (710) is installed on the inner wall of the extension groove (713).

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