A copper wire surface treatment and passivation integrated device

Abstract

The utility model discloses a copper wire surface treatment and passivation integrated equipment relates to copper wire surface treatment field, including positioning frame, fixed plate, drive motor drive coupling drive rotating shaft rotation to drive first polishing disc rotation and polish the copper wire surface grinding work, set up in the second polishing disc of one side of the round corner positioning frame, with first polishing disc synchronous polishing work to copper wire, set up L shape support plate, round corner limit frame utilizes the movable axle to the movable polishing roller limit work, set up movable polishing roller outer wall can contact the copper wire surface and polish work to it, set up two round corner limit pad and carry out the location effect to movable axle, set up support plate, positioning ring can to first special -shaped positioning plate, second special -shaped positioning plate and the use of fixed cylinder is dedicated to reinforce the support effect, set up fixed cylinder, threading hole and draw -in groove can all be positioned to the copper wire and polish work to its surface.

Description

Technical Field

[0001] This utility model relates to the field of copper wire surface treatment technology, and in particular to an integrated device for copper wire surface treatment and passivation. Background Technology

[0002] Copper wire, as a fundamental and crucial conductive material, plays an indispensable role in numerous fields such as power transmission, communication, electronic equipment, new energy vehicles, and motor windings. Its conductivity, mechanical strength, and service life depend not only on the purity of the copper itself but also on its surface quality. During production, storage, and transportation, the surface of copper wire inevitably accumulates oxide layers, burrs, oil stains, scratches, and other deposits. These surface defects significantly increase the contact resistance of the copper wire, leading to signal attenuation, increased energy loss, and even localized overheating, affecting the safety and reliability of the entire electrical system. Simultaneously, a rough surface reduces the adhesion of subsequent coatings (such as insulating varnish and tin plating), shortening the product's final lifespan.

[0003] Traditional processing often separates grinding, polishing, cleaning, and passivation steps onto different equipment. Copper wires need to pass through multiple independent stations sequentially, which not only increases equipment footprint and extends production cycles but also reduces overall production efficiency due to multiple loading, unloading, and transfers. It also increases the risk of secondary contamination or damage to the copper wires during transport. In the grinding stage, many machines use single-sided or fixed grinding structures. For circular cross-section copper wires, single-sided grinding makes it difficult to ensure uniform force along the circumference, easily leading to over- or under-grinding, resulting in uneven wire diameter and spiral scratches on the surface. Fixed grinding tools cannot adapt to minute dimensional fluctuations or slight vibrations in the copper wire, also affecting processing consistency. Some older equipment requires manual loading, positioning, pressure adjustment, and monitoring of the process, which not only increases labor costs but also allows human factors to easily cause product quality fluctuations, making it difficult to meet the demands of modern large-scale, high-precision production. The surface activity of the ground copper wire is extremely high, and it is in a "fresh" exposed state. If it is not immediately and effectively passivated, it will quickly re-oxidize in the air, forming a new oxide layer. This significantly reduces the effectiveness of the preceding polishing process, and the surface quality of the product deteriorates before it enters the next process (such as extruded insulation).

[0004] To address the above issues, it is necessary to design an integrated device for copper wire surface treatment and passivation to overcome these problems. Summary of the Invention

[0005] The main objective of this invention is to provide an integrated device for copper wire surface treatment and passivation, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An integrated surface treatment and passivation device for copper wire includes a positioning frame and a fixing plate. A drive motor is connected to one end of the top of the fixing plate. A coupling is provided at the output end of the drive motor. A rotating shaft is provided at the output end of the coupling. A first grinding disc is connected to the output end of the rotating shaft. A rounded corner positioning frame is fixedly installed in the middle of the top of the positioning frame. A second grinding disc is installed at the end of the inner side of the rounded corner positioning frame away from the first grinding disc. An L-shaped support plate is installed on the top of the rounded corner positioning frame. A positioning block is installed on one side of the L-shaped support plate. A rounded corner limiting frame is installed at the end of the positioning block away from the L-shaped support plate. A movable shaft is connected to the inner side of the rounded corner limiting frame. Two movable shafts are connected to rounded corner limiting pads at one end through the rounded corner limiting frame. A movable grinding roller is connected to the outer wall of the movable shaft.

[0007] As a preferred embodiment of this utility model, support plates are installed at both ends of the top of the positioning frame away from the rounded corner positioning frame. A positioning ring is fixedly installed on one side of each of the two support plates. A first irregular positioning plate and a second irregular positioning plate are respectively installed on the top of the positioning ring. A fixing cylinder is connected to one end of the positioning ring. A wire hole is provided at one end of the first irregular positioning plate and the second irregular positioning plate. A slot is opened in the middle of the top of the first irregular positioning plate and the second irregular positioning plate.

[0008] In a preferred embodiment of this utility model, the drive motor is connected to the rotating shaft via the coupling, the rotating shaft is rotatably connected to the first grinding disc, and the rounded corner positioning frame is threadedly fixedly connected to the second grinding disc.

[0009] In a preferred embodiment of this utility model, the rounded corner positioning frame is fixedly connected to the L-shaped support plate, the L-shaped support plate is fixedly connected to the positioning block, and the positioning block is fixedly connected to the rounded corner limiting frame.

[0010] As a preferred embodiment of this utility model, the rounded corner limiting frame is rotatably connected to the two movable shafts, the movable shafts pass through the rounded corner limiting frame and are rotatably connected to the rounded corner limiting pad, and the movable shafts are rotatably connected to the movable grinding roller.

[0011] In a preferred embodiment of this utility model, the support plate is fixedly connected to the two positioning rings, the first irregular positioning plate and the second irregular positioning plate are fixedly snapped onto the outer wall of the positioning ring, and the positioning ring is rotatably connected to the fixed cylinder.

[0012] As a preferred embodiment of this utility model, the first irregularly shaped positioning plate and the second irregularly shaped positioning plate are fixedly connected to the thread hole, and the support plate is fixedly connected to the top two ends of the positioning frame.

[0013] Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: This integrated copper wire surface treatment and passivation equipment uses a drive motor to drive a coupling, which in turn rotates a rotating shaft. This rotation causes a first grinding disc to grind the surface of the copper wire. A second grinding disc, positioned on one side of a rounded corner positioning frame, works in sync with the first grinding disc to grind the copper wire. An L-shaped support plate and a rounded corner limiting frame use a movable shaft to limit the movement of the grinding roller. The outer wall of the movable grinding roller can contact the surface of the copper wire for grinding. Two rounded corner limiting pads limit the movement of the shaft. The support plate and positioning ring reinforce the first and second irregularly shaped positioning plates and the fixing cylinder. The fixing cylinder, wire hole, and slot all position the copper wire before grinding its surface. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the first grinding disc installation structure of this utility model; Figure 3 This is a schematic diagram of the rounded corner positioning frame installation structure of this utility model; Figure 4 This is a schematic diagram of the installation of the movable grinding roller of this utility model; Figure 5 This is a schematic diagram of the installation structure of the first irregularly shaped positioning plate of this utility model.

[0015] In the diagram: 1. Positioning frame; 2. Fixing plate; 3. Drive motor; 4. Coupling; 5. Rotating shaft; 6. First grinding disc; 7. Rounded corner positioning frame; 8. Second grinding disc; 9. L-shaped support plate; 10. Positioning block; 11. Rounded corner limiting frame; 12. Movable shaft; 13. Rounded corner limiting pad; 14. Movable grinding roller; 15. Support plate; 16. Positioning ring; 17. First irregularly shaped positioning plate; 18. Second irregularly shaped positioning plate; 19. Fixing cylinder; 20. Threading hole; 21. Slot. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-5As shown, an integrated copper wire surface treatment and passivation device includes a positioning frame 1 and a fixing plate 2. A drive motor 3 is connected to one end of the top of the fixing plate 2. A coupling 4 is provided at the output end of the drive motor 3. A rotating shaft 5 is provided at the output end of the coupling 4. A first grinding disc 6 is connected to the output end of the rotating shaft 5. A rounded corner positioning frame 7 is fixedly installed in the middle of the top of the positioning frame 1. A second grinding disc 8 is installed at the end of the inner side of the rounded corner positioning frame 7 away from the first grinding disc 6. An L-shaped support plate 9 is installed on the top of the rounded corner positioning frame 7. A positioning block 10 is installed on one side of the L-shaped support plate 9. A rounded corner limiting frame 11 is installed at the end of the positioning block 10 away from the L-shaped support plate 9. A movable shaft 12 is connected to the inner side of the rounded corner limiting frame 11. A rounded corner limiting pad 13 is connected to one end of the two movable shafts 12 that pass through the rounded corner limiting frame 11. A movable grinding roller 14 is connected to the outer wall of the movable shaft 12. The drive motor 3 is connected to the rotating shaft 5 via the coupling 4. The rotating shaft 5 is rotatably connected to the first grinding disc 6. The rounded corner positioning frame 7 is threadedly fixed to the second grinding disc 8. The rounded corner positioning frame 7 is fixedly connected to the L-shaped support plate 9. The L-shaped support plate 9 is fixedly connected to the positioning block 10. The positioning block 10 is fixedly connected to the rounded corner limiting frame 11. The rounded corner limiting frame 11 is rotatably connected to two movable shafts 12. The movable shafts 12 pass through the rounded corner limiting frame 11 and are rotatably connected to the rounded corner limiting pad 13. The movable shafts 12 are rotatably connected to the movable grinding roller 14. Specifically, in this embodiment, the drive motor 3 is preferably a servo motor or a variable frequency speed control motor, so as to precisely adjust the speed of the grinding disc according to the wire diameter, material and processing requirements of the copper wire to achieve the best processing effect. The output shaft of the drive motor 3 is coaxially connected to a rotating shaft 5 through a coupling 4 to ensure the smoothness and efficiency of power transmission. The coupling 4 can be an elastic coupling to absorb installation errors and minor vibrations during operation. At the end of the rotating shaft 5 away from the coupling 4, a first grinding disc 6 is detachably installed by means of key connection or flange connection. The detachable design facilitates quick replacement after the grinding disc wears out. The surface of the first grinding disc 6 can be bonded or sintered with abrasive materials of different particle sizes, such as diamond, alumina, etc., to adapt to the different process requirements of coarse grinding or fine grinding. A rounded corner positioning frame 7 is fixedly installed at the middle position of the top of the positioning frame 1. The rounded corner positioning frame 7 is generally U-shaped or C-shaped, with its opening facing the first grinding disc 6. On the inner wall of the rounded corner positioning frame 7, opposite the first grinding disc 6, a second grinding disc 8 is installed via a threaded connection or snap-fit. A grinding gap is formed between the first grinding disc 6 and the second grinding disc 8 to allow copper wires to pass through. By adjusting the screw depth of the second grinding disc 8 onto the rounded corner positioning frame 7, the size of this grinding gap can be precisely controlled to accommodate copper wires of different diameters. The rounded corner design of the rounded corner positioning frame 7 effectively prevents rigid scraping between the copper wire and the equipment when entering or exiting the grinding area. To achieve comprehensive fine grinding of the circumferential surface of the copper wire, this equipment is also equipped with an adaptive grinding mechanism. The mechanism includes an L-shaped support plate 9 fixed to the top of a rounded corner positioning frame 7. A positioning block 10 is mounted on the horizontal arm of the L-shaped support plate 9, and a rounded corner limiting frame 11 is fixedly connected to the other end of the positioning block 10. Inside the rounded corner limiting frame 11, two parallel movable shafts 12 are connected through and rotatably. A movable grinding roller 14 is fixedly mounted in the middle of the movable shaft 12. The movable grinding roller 14 can be made of highly elastic polyurethane or a rubber roller wrapped with abrasive cloth, so that it can effectively grind and adapt to the surface contour of the copper wire. The two movable shafts 12... The end extends out of the rounded corner limiting frame 11 and each is equipped with a rounded corner limiting pad 13. The outer diameter of the rounded corner limiting pad 13 is larger than the diameter of the shaft hole on the rounded corner limiting frame 11, which plays the role of axial limiting and prevents the movable shaft 12 from moving during rotation. This ensures that the movable grinding roller 14 always works stably within the predetermined track. In actual operation, the two movable grinding rollers 14 hang down naturally and press against the surface of the copper wire passing below them under the action of gravity or spring force. When the copper wire moves, it drives the rollers to rotate, thereby performing 360° flexible fine grinding and polishing on the copper wire.

[0018] Support plates 15 are installed at both ends of the top of the positioning frame 1 away from the rounded corner positioning frame 7. A positioning ring 16 is fixedly installed on one side of the two support plates 15. A first irregular positioning plate 17 and a second irregular positioning plate 18 are respectively installed on the top of the positioning ring 16. A fixing cylinder 19 is connected to one end of the positioning ring 16. A wire hole 20 is provided at one end of the first irregular positioning plate 17 and the second irregular positioning plate 18. A slot 21 is opened in the middle of the top of the first irregular positioning plate 17 and the second irregular positioning plate 18. The support plate 15 is fixedly connected to two positioning rings 16. The first irregular positioning plate 17 and the second irregular positioning plate 18 are fixedly snapped onto the outer wall of the positioning ring 16. The positioning ring 16 is rotatably connected to the fixed cylinder 19. The first irregular positioning plate 17 and the second irregular positioning plate 18 are fixedly connected to the wire hole 20. The support plate 15 is fixedly connected to the top two ends of the positioning frame 1. Specifically, in this embodiment, a support plate 15 is vertically installed at each end of the top of the positioning frame 1, away from the rounded corner positioning frame 7. The two support plates 15 form a channel for the copper wire to enter and exit. A positioning ring 16 is fixedly installed on the inner side of each support plate 15. A fixing cylinder 19 is rotatably connected in the inner hole of the positioning ring 16. The inner diameter of the fixing cylinder 19 matches the outer diameter of the copper wire, providing stable forward guidance for the copper wire and preventing it from shaking. On the outer wall of the positioning ring 16, a clamping or bolting device is installed. The first irregularly shaped positioning plate 17 and the second irregularly shaped positioning plate 18 are both provided with wire-passing holes 20. The axis of the wire-passing holes 20 is strictly aligned with the center line of the fixed cylinder 19 and the grinding station to ensure that the copper wire can pass straight through the entire equipment. The irregular design facilitates installation and fixation. In addition, the top of the first irregularly shaped positioning plate 17 and the second irregularly shaped positioning plate 18 are both provided with slots 21. These slots can be used to install dust covers, sensors, or as guide channels for lubricating / passivating liquid droplets, enhancing the expandability and functionality of the equipment. During operation, the position of the second grinding disc 8 is first adjusted according to the diameter of the copper wire to be processed, and the initial gap between it and the first grinding disc 6 is set. One end of the copper wire is then passed sequentially through the wire-passing hole 20 of the second irregular positioning plate 18, the rear fixed cylinder 19, the grinding area between the second grinding disc 8 and the first grinding disc 6, below the two movable grinding rollers 14, and the front fixed cylinder 19. Finally, it exits through the wire-passing hole 20 of the first irregular positioning plate 17 at the front. The drive motor 3 is started to rotate the first grinding disc 6. Then, the copper wire traction device is started to make the copper wire pass through the device at a constant speed. When the copper wire passes through the main grinding area, the high-speed rotating first grinding disc 6 and the fixed cylinder 19... The second grinding disc 8 powerfully cuts the surface of the copper wire from both sides, removing oxide scale and burrs. Subsequently, the copper wire enters the adaptive fine grinding zone, where two movable grinding rollers 14 are pressed against the surface of the copper wire and rotate with the movement of the copper wire, gently grinding and polishing any remaining minor imperfections in the circumferential direction, making the surface smoother and more uniform. Throughout the process, the fixed cylinder 19 and the wire-passing hole 20 always provide precise guidance for the copper wire, ensuring the straightness and concentricity of the processing. Finally, the processed copper wire is exported from the front end of the equipment. If a passivation function is integrated, a passivation liquid spraying device can be set at the equipment outlet to perform immediate passivation treatment on the smooth copper wire surface, forming a protective film to prevent secondary oxidation.

[0019] It should be noted that this utility model is an integrated device for copper wire surface treatment and passivation. In use, the copper wire to be treated enters from one end of the device, first passing through an inlet guide unit composed of a first irregularly shaped positioning plate 17 and a second irregularly shaped positioning plate 18. Both of these positioning plates are provided with wire-passing holes 20, the diameter of which matches the nominal diameter of the copper wire to be treated, serving as preliminary straightening and center positioning to ensure the copper wire enters the subsequent grinding station in the correct posture. Simultaneously, the slot 21 on the top of the positioning plate can be used to install auxiliary components or as an adjustment mark, enhancing the device's versatility. The copper wire then enters a fixed cylinder 19 supported by a positioning ring 16. The fixed cylinder provides a stable, enclosed channel for the copper wire, preventing unnecessary vibration during high-speed processing. After passing through the fixed cylinder, the copper wire enters the core main grinding station, which consists of a first grinding disc 6 and a second grinding disc 8. After the device starts, the drive motor 3 begins operation, transmitting power to the rotating shaft 5 via a coupling 4, thereby driving the first grinding disc 6 to rotate at high speed. The copper wire passes between the first polishing disc and the second polishing disc 8, which is fixedly mounted on the rounded corner positioning frame 7. These two polishing discs are positioned opposite each other, forming a clamping polishing area. As the copper wire passes through, the rotating first polishing disc and the fixed second polishing disc simultaneously polish the surface of the copper wire from both sides, efficiently and powerfully removing the oxide layer, burrs, and larger defects. The design of the rounded corner positioning frame 7 not only provides a stable mounting base for the second polishing disc, but its rounded corner structure also prevents scratches during the copper wire's movement. After passing through the main grinding station, most defects on the copper wire surface have been removed, but minor scratches or unevenness may still remain. At this point, the copper wire enters the adaptive finishing station composed of movable grinding rollers 14. This station is securely installed above or to the side of the main station via an L-shaped support plate 9, a positioning block 10, and a rounded corner limiting frame 11. The movable grinding rollers 14 are mounted within the rounded corner limiting frame via a movable shaft 12. Their key feature is "movability." As the copper wire passes through, the movable grinding rollers can rely on their own weight or a preset elastic pressure to tightly adhere to the copper wire surface. This floating design allows them to adapt to minute diameter changes caused by manufacturing tolerances or thermal expansion and contraction, maintaining a constant grinding pressure. Two rounded corner limiting pads 13 axially limit the movable shaft 12, ensuring that the movable grinding rollers do not shift during rotational grinding, thus guaranteeing grinding stability and precision. This step performs fine polishing and finishing on the copper wire surface, further improving surface smoothness.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated device for surface treatment and passivation of copper wire, comprising a positioning frame (1) and a fixing plate (2), characterized in that: One end of the top of the fixed plate (2) is connected to a drive motor (3), and the output end of the drive motor (3) is provided with a coupling (4). The output end of the coupling (4) is provided with a rotating shaft (5), and the output end of the rotating shaft (5) is connected to a first grinding disc (6). A rounded corner positioning frame (7) is fixedly installed in the middle of the top of the positioning frame (1). A second grinding disc (8) is installed on the inner side of the rounded corner positioning frame (7) away from the first grinding disc (6). 7) is equipped with an L-shaped support plate (9) on the top. A positioning block (10) is installed on one side of the L-shaped support plate (9). A rounded corner limiting frame (11) is installed at the end of the positioning block (10) away from the L-shaped support plate (9). A movable shaft (12) is connected to the inner side of the rounded corner limiting frame (11). A rounded corner limiting pad (13) is connected to one end of the two movable shafts (12) that pass through the rounded corner limiting frame (11). A movable grinding roller (14) is connected to the outer wall of the movable shaft (12).

2. The integrated copper wire surface treatment and passivation equipment according to claim 1, characterized in that: Support plates (15) are installed at both ends of the top of the positioning frame (1) away from the rounded corner positioning frame (7). A positioning ring (16) is fixedly installed on one side of the two support plates (15). A first irregular positioning plate (17) and a second irregular positioning plate (18) are respectively installed on the top of the positioning ring (16). A fixing cylinder (19) is connected to one end of the positioning ring (16). A wire hole (20) is provided at one end of the first irregular positioning plate (17) and the second irregular positioning plate (18). A slot (21) is opened in the middle of the top of the first irregular positioning plate (17) and the second irregular positioning plate (18).

3. The integrated equipment for copper wire surface treatment and passivation according to claim 1, characterized in that: The drive motor (3) is connected to the rotating shaft (5) via the coupling (4), the rotating shaft (5) is rotatably connected to the first grinding disc (6), and the rounded corner positioning frame (7) is threadedly fixed to the second grinding disc (8).

4. The integrated equipment for copper wire surface treatment and passivation according to claim 1, characterized in that: The rounded corner positioning frame (7) is fixedly connected to the L-shaped support plate (9), the L-shaped support plate (9) is fixedly connected to the positioning block (10), and the positioning block (10) is fixedly connected to the rounded corner limiting frame (11).

5. The integrated equipment for copper wire surface treatment and passivation according to claim 1, characterized in that: The rounded corner limiting frame (11) is rotatably connected to the two movable shafts (12). The movable shafts (12) pass through the rounded corner limiting frame (11) and are rotatably connected to the rounded corner limiting pad (13). The movable shafts (12) are rotatably connected to the movable grinding roller (14).

6. The integrated copper wire surface treatment and passivation equipment according to claim 2, characterized in that: The support plate (15) is fixedly connected to the two positioning rings (16), the first irregular positioning plate (17) and the second irregular positioning plate (18) are fixedly snapped onto the outer wall of the positioning ring (16), and the positioning ring (16) is rotatably connected to the fixed cylinder (19).

7. The integrated copper wire surface treatment and passivation equipment according to claim 2, characterized in that: The first irregular positioning plate (17) and the second irregular positioning plate (18) are fixedly connected to the thread hole (20), and the support plate (15) is fixedly connected to the top two ends of the positioning frame (1).

Images