An outer surface treatment device for copper wire tinned

Abstract

This invention belongs to the field of copper wire galvanizing technology, and specifically relates to an external surface treatment device for copper wire tin plating. It includes: a treatment box, and an oil-immersing wheel group, a polishing wheel group, and a rinsing wheel group installed inside the treatment box. The oil-immersing wheel group, polishing wheel group, and rinsing wheel group guide and convey the copper wire to be treated. A polishing mechanism is used to grind and polish the copper wire passing through the polishing wheel group. Through the cooperation between the treatment box, the oil-immersing wheel group, the polishing wheel group, the rinsing wheel group, the polishing mechanism, the rinsing mechanism, and the drying mechanism, the oil-immersing wheel group, the polishing wheel group, and the rinsing wheel group guide the copper wire requiring surface treatment, thereby conveying the copper wire within the same reference plane. This allows for sequential degreasing, polishing, rinsing, and drying, achieving continuity of multi-process copper wire treatment. This avoids secondary contamination during copper wire surface treatment, thereby improving the cleanliness of the copper wire surface before tin plating and enhancing the quality of copper wire tin plating.

Description

Technical Field

[0001] This invention belongs to the field of copper wire zinc plating technology, and specifically relates to an external surface treatment device for copper wire tin plating. Background Technology

[0002] Tin plating of copper wire is a key process to improve the oxidation resistance, corrosion resistance, conductivity and weldability of copper wire. It is widely used in wire and cable, electronic components, electrical equipment and other fields. The surface treatment of copper wire before tin plating is the core link to ensure the adhesion, uniformity and quality of the tin plating layer. It is necessary to complete a series of processes such as degreasing, derusting, polishing, cleaning and drying of the copper wire surface to remove contaminants such as oil, oxide scale and impurities, so as to provide a clean and activated metal surface for subsequent tin plating.

[0003] In the existing technology, various treatment methods for copper wire before zinc plating are carried out using different equipment. After completing one treatment, another surface treatment is required, which leads to secondary contamination during the transfer of different equipment parts, thus affecting the quality of zinc plating. Therefore, we need to propose an external surface treatment device for copper wire tin plating. Summary of the Invention

[0004] To address the above problems, the present invention provides an external surface treatment apparatus for tin plating of copper wire, comprising:

[0005] The processing box, and the oil-immersing wheel set, polishing wheel set and rinsing wheel set installed in the inner cavity of the processing box, guide and transport the copper wire to be processed through the oil-immersing wheel set, polishing wheel set and rinsing wheel set;

[0006] The polishing mechanism is used to grind and polish copper wires that have passed through the polishing wheel set;

[0007] High-pressure rinsing mechanism, used to perform high-pressure rinsing on copper wires that have passed through the rinsing wheel assembly;

[0008] The air-drying mechanism is used to dry the surface moisture of the copper wire after high-pressure rinsing.

[0009] The top of the processing box is detachably connected to a cover plate, and both sides of the processing box are provided with through holes for copper wires to pass through.

[0010] Furthermore, the oil-immersing roller assembly includes an inlet roller, an oil-immersing roller, and a tensioning roller. The inlet roller and the tensioning roller are both arranged on the same horizontal plane, and the oil-immersing roller is located at the bottom of the inner cavity of the processing box. The inlet roller, the oil-immersing roller, and the tensioning roller are arranged in a triangular array.

[0011] Furthermore, it also includes a tensioning mechanism for installing the tensioning roller. The tensioning mechanism includes two sets of sliders slidably disposed on the inner wall of the processing line. One side of each set of sliders is fixedly connected to a telescopic rod, and a spring is sleeved on the outside of the telescopic rod. Slide grooves for sliding of the sliders are opened on both sides of the inner cavity of the processing box. A sliding plate located outside the processing box is fixedly connected to the opposite side of each set of sliders.

[0012] Furthermore, a first baffle and a second baffle are fixedly connected to the inner cavity of the processing box. An oil scraping mechanism located in the inner cavity of the processing box is installed above the first baffle. A neutral oil storage cavity is provided on one side of the inner cavity of the processing box and the first baffle, and the neutral oil storage cavity is used to remove oil stains from the surface of the copper wire.

[0013] Furthermore, the oil scraping mechanism includes a mounting frame, with positioning bolts for bolting to the treatment box inserted into both sides of the mounting frame. An elastic hoop is provided on the lower surface of the mounting frame, and multiple sets of rubber scraper strips are bonded to the inner wall of the elastic hoop. Reinforcing ribs are provided on the upper surface of the mounting frame.

[0014] Furthermore, the polishing mechanism includes a first polishing roller and two sets of second polishing rollers rotatably disposed in the inner cavity of the processing box and located between the first baffle and the second baffle. The first polishing roller and the two sets of second polishing rollers are arranged in a triangular array. One end of the first polishing roller and the two sets of second polishing rollers passes through the processing box and is fixedly connected to a synchronous sprocket. Chains are provided on the multiple sets of synchronous sprockets. The other end of the first polishing roller passes through the processing box and is driven by a motor.

[0015] Furthermore, the polishing wheel set includes multiple polishing guide rollers arranged in a triangular array. The first grinding roller and two sets of second grinding rollers are both arranged between the multiple polishing guide rollers. A debris disk located below the polishing wheel set is inserted into the lower end of the side of the processing box adjacent to the through hole.

[0016] Furthermore, the high-pressure rinsing mechanism includes an inner rinsing box, an outer rinsing plate, and a water pump. Multiple sets of nozzles for spraying water onto the copper wires are provided on opposite sides of the inner rinsing box and the outer rinsing plate. The outlet of the water pump is connected to a connecting pipe that communicates with the inner rinsing box and the outer rinsing plate.

[0017] Furthermore, the flushing wheel assembly includes multiple sets of flushing guide rollers arranged in a rectangular array, the inner flushing box is disposed between the multiple sets of flushing guide rollers, the front view cross-section of the outer flushing plate is U-shaped, an outlet roller is installed on the side of the inner cavity of the processing box away from the inlet roller, and a return slope is provided in the inner cavity of the processing box below the outlet roller.

[0018] Furthermore, the air drying mechanism includes an air pump and an annular pipe. An air pipe that penetrates the processing box is installed between the air pump and the annular pipe. One end of the annular pipe is integrally formed with two sets of extension pipes. The inner walls of the two sets of extension pipes and the inner wall of the annular pipe are provided with air holes for blowing air onto the copper wire.

[0019] The beneficial effects of this invention are:

[0020] 1. This invention utilizes the coordination between a processing box, an oil-immersing wheel assembly, a polishing wheel assembly, a rinsing wheel assembly, a polishing mechanism, a rinsing mechanism, and a drying mechanism. The oil-immersing wheel assembly, polishing wheel assembly, and rinsing wheel assembly guide the copper wires that require surface treatment, thereby allowing the copper wires to be transported within the same reference plane. This enables sequential degreasing, polishing, rinsing, and drying processes, achieving continuity in the multi-process treatment of the copper wires. This avoids secondary contamination during the surface treatment of the copper wires, thereby improving the cleanliness of the copper wire surface before galvanizing and enhancing the quality of copper wire galvanizing.

[0021] 2. This invention utilizes the cooperation between a tensioning mechanism and an oil scraping mechanism. The copper wire is immersed in neutral oil in the treatment tank through an oil-immersing wheel assembly, thereby removing grease from the surface of the copper wire. After detaching from the neutral oil, the excess grease on the surface of the copper wire is scraped off by the oil scraping mechanism. At the same time, the copper wire is prevented from becoming loose during transport under the action of the tensioning mechanism, thereby improving the stability of the transport and ensuring that the surface of the copper wire is clean when it enters the polishing mechanism. This ensures that the polishing mechanism polishes the surface of the copper wire and improves the smoothness of the copper wire surface.

[0022] 3. This invention utilizes the cooperation between a high-pressure rinsing mechanism and a drying mechanism. The high-pressure rinsing mechanism removes the debris generated during polishing, thereby ensuring the quality of subsequent zinc plating of the copper wire. Furthermore, the drying mechanism prevents water stains from remaining on the surface of the copper wire. Multiple processes are completed sequentially, avoiding secondary pollution caused by traditional transfer between multiple devices.

[0023] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present invention is shown;

[0026] Figure 2 A schematic diagram of the internal structure of the processing box according to an embodiment of the present invention is shown;

[0027] Figure 3 A schematic diagram of the internal copper wire routing structure of the processing box according to an embodiment of the present invention is shown;

[0028] Figure 4 It shows Figure 3 Enlarged structural diagram of A in the middle;

[0029] Figure 5 A schematic diagram of the polishing mechanism structure according to an embodiment of the present invention is shown;

[0030] Figure 6 A schematic diagram of the high-pressure flushing mechanism according to an embodiment of the present invention is shown;

[0031] Figure 7 A schematic diagram of the air-drying mechanism structure according to an embodiment of the present invention is shown;

[0032] Figure 8 A schematic diagram of the oil scraping mechanism according to an embodiment of the present invention is shown.

[0033] In the diagram: 1. Processing box; 2. Cover plate; 3. Controller; 4. Tensioning mechanism; 41. Slider; 42. Telescopic rod; 43. Spring; 44. Slide plate; 5. Polishing mechanism; 51. Motor; 52. First polishing roller; 53. Second polishing roller; 54. Synchronous sprocket; 55. Chain; 6. Debris disc; 7. High-pressure rinsing mechanism; 71. Inner rinsing box; 72. Outer rinsing plate; 73. Nozzle; 74. Connecting pipe; 75. Water pump; 8. Drying mechanism; 81. Air pump; 8 2. Air pipe; 83. Annular pipe; 84. Extension pipe; 85. Air hole; 9. Oil-immersed wheel assembly; 91. Inlet roller; 92. Oil-immersed roller; 93. Tensioning roller; 10. Oil scraping mechanism; 101. Mounting frame; 102. Positioning bolt; 103. Reinforcing rib; 104. Elastic hoop; 105. Rubber scraper; 11. Through hole; 12. Slide groove; 13. First baffle; 14. Second baffle; 15. Polishing wheel assembly; 16. Flushing wheel assembly; 17. Outlet roller; 18. Return slope. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figure 1-8 As shown, this embodiment of the invention provides an external surface treatment device for tin plating of copper wire, including a treatment box 1, a polishing mechanism 5, a high-pressure rinsing mechanism 7, an air drying mechanism 8, and an oil-immersing wheel group 9, a polishing wheel group 15, and a rinsing wheel group 16 installed in the inner cavity of the treatment box 1. The treatment box 1 is made of stainless steel and its surface is treated with anti-corrosion to resist corrosion from neutral oil and water, thus extending the service life of the device. The oil-immersing wheel group 9, the polishing wheel group 15, and the rinsing wheel group 16 guide and transport the copper wire to be treated.

[0036] The top of the processing box 1 is detachably connected to a cover plate 2, and both sides of the processing box 1 are provided with through holes 11 for copper wires to pass through.

[0037] Motor 51 is a speed-regulating servo motor with adjustable speed to suit the polishing needs of copper wires of different diameters. Air pump 81 is a high-pressure vortex air pump with adjustable airflow. Water pump 75 is a high-pressure booster water pump with adjustable water pressure. All three are electrically connected to external controller 3 via wires to achieve centralized control and convenient operation.

[0038] like Figure 2-3 As shown, in this embodiment, the oil-immersing roller group 9 includes an inlet roller 91, an oil-immersing roller 92, and a tensioning roller 93. The inlet roller 91 and the tensioning roller 93 are both arranged on the same horizontal plane. The oil-immersing roller 92 is arranged at the bottom of the inner cavity of the processing box 1. The inlet roller 91, the oil-immersing roller 92, and the tensioning roller 93 are arranged in a triangular array.

[0039] The triangular array layout allows the copper wire to be completely immersed in the neutral oil in the treatment tank 1, extending the contact time between the copper wire and the degreasing agent, improving the degreasing effect, and removing oil stains from the surface of the copper wire. The placement of the inlet roller 91 and the tension roller 93 on the same horizontal plane ensures the smooth introduction and tensioning of the copper wire, preventing the copper wire from loosening or knotting during the oil immersion process, and ensuring the continuous and smooth progress of the degreasing process.

[0040] like Figure 3-4 As shown, the device also includes a tensioning mechanism 4 for mounting the tensioning roller 93. The tensioning mechanism 4 includes two sets of sliders 41 that are slidably disposed on the inner wall of the processing line. One side of each set of sliders 41 is fixedly connected to a telescopic rod 42, and a spring 43 is sleeved on the outer side of the telescopic rod 42. Slide grooves 12 for sliding of the sliders 41 are opened on both sides of the inner cavity of the processing box 1. A sliding plate 44 located on the outer side of the processing box 1 is fixedly connected to the opposite side of each set of sliders 41.

[0041] The sliding engagement of slider 41 and groove 12 allows for flexible adjustment of the position of tension roller 93. Combined with the elastic force of telescopic rod 42 and spring 43, continuous elastic tension is provided to tension roller 93. This can be adaptively adjusted according to the conveying tension of copper wire, preventing the copper wire from shifting due to excessive looseness or breaking due to excessive tightness. The sliding plate 44 allows operators to observe and adjust the position of tension roller 93 from the outside of processing box 1. The sliding plate 44 is a transparent hard plastic plate, which improves the ease of operation.

[0042] The telescopic rod 42 is a multi-section nested metal telescopic rod 42 with a telescopic stroke of 5-15cm. The spring 43 is a compression spring with an elastic coefficient adapted to the tension requirements of copper wire conveying. The two ends of the spring 43 are fixedly connected to the slider 41 and the side wall of the slide groove 12 respectively to ensure the stable elastic tensioning effect of the tension roller 93.

[0043] like Figure 2-3 As shown, further, a first baffle 13 and a second baffle 14 are fixedly connected to the inner cavity of the processing box 1. An oil scraping mechanism 10 located in the inner cavity of the processing box 1 is installed above the first baffle 13. A neutral oil storage chamber is provided on one side of the inner cavity of the processing box 1 and the first baffle 13. The neutral oil storage chamber is used to remove oil stains from the surface of the copper wire. The neutral oil storage chamber provides a stable medium space for the copper wire degreasing, ensuring the continuous operation of the degreasing process.

[0044] The first baffle 13 and the second baffle 14 divide the inner cavity of the processing box 1 into independent degreasing, polishing and rinsing stations to avoid the media of each process from mixing and contaminating each other, and to ensure the processing effect of each process. The oil scraping mechanism 10 can perform surface oil scraping treatment on the copper wire after oil immersion and degreasing to remove excess neutral oil and prevent oil stains from being carried into the subsequent polishing process and affecting the polishing effect.

[0045] The upper side of the treatment tank 1 is provided with an oil inlet (not shown in the figure) that communicates with the neutral oil storage chamber. A sealing cap is threaded onto the oil inlet. The lower side of the treatment tank 1 is provided with an oil drain pipe (not shown in the figure) that communicates with the neutral oil storage chamber. A valve is provided on the oil drain pipe to facilitate the addition, replacement and discharge of neutral oil and waste liquid.

[0046] like Figure 2 and Figure 8 As shown, the oil scraping mechanism 10 includes a mounting frame 101. Positioning bolts 102 that are bolted to the processing box 1 are inserted into both sides of the mounting frame 101, which facilitates the disassembly, cleaning and replacement of the oil scraping components. An elastic hoop 104 is provided on the lower surface of the mounting frame 101, and multiple sets of rubber scraper strips 105 are bonded to the inner wall of the elastic hoop 104. A reinforcing rib 103 is provided on the upper surface of the mounting frame 101. The reinforcing rib 103 enhances the structural strength of the mounting frame 101, prevents deformation during long-term use, and ensures the working stability of the oil scraping mechanism 10.

[0047] The elastic band 104, together with the multiple sets of rubber scrapers 105 on the inner wall, can closely fit the surface of copper wires of different diameters to achieve flexible oil scraping. This ensures thorough oil scraping while avoiding damage to the copper wire substrate, ensuring that excess oil on the surface of the copper wire is effectively removed.

[0048] like Figure 2 and Figure 5 As shown, it is worth noting that the polishing mechanism 5 includes a first polishing roller 52 rotatably disposed in the inner cavity of the processing box 1 and located between the first baffle 13 and the second baffle 14, and two sets of second polishing rollers 53. The first polishing roller 52 and the two sets of second polishing rollers 53 are arranged in a triangular array. One end of the first polishing roller 52 and the two sets of second polishing rollers 53 all pass through the processing box 1 and are fixedly connected to a synchronous sprocket 54. Chains 55 are provided on the multiple sets of synchronous sprockets 54. The other end of the first polishing roller 52 passes through the processing box 1 and is driven by a motor 51.

[0049] The copper wire can pass between the three sets of polishing rollers, achieving all-round polishing of the circumferential surface of the copper wire without polishing dead corners, and thoroughly removing the oxide scale and impurities on the surface of the copper wire. The cooperation between the synchronous sprocket 54 and the chain 55 enables the synchronous rotation of the three sets of polishing rollers, ensuring uniform polishing force on the surface of the copper wire and improving polishing accuracy.

[0050] like Figure 2-3 As shown, specifically, the polishing wheel set 15 includes multiple polishing guide rollers, and the multiple polishing guide rollers are arranged in a triangular array. The first grinding roller 52 and two sets of second grinding rollers 53 are both arranged between the multiple polishing guide rollers. The lower end of the processing box 1 adjacent to the through hole 11 is connected to a debris disk 6 located below the polishing wheel set 15.

[0051] Multiple sets of polishing guide rollers are arranged in a triangular array to provide stable guidance and support for the copper wire polishing process, ensuring that the copper wire is conveyed in a straight line during polishing and avoiding deviation that leads to uneven polishing. The polishing rollers are set between the polishing guide rollers so that the copper wire is in close contact with the polishing rollers, improving the polishing effect.

[0052] like Figure 1-2 As shown, the chip tray 6 is directly inserted into the outside of the processing box 1, which can quickly collect impurities such as oxide scale and metal chips generated during the polishing process, and prevent impurities from accumulating in the processing box 1 and affecting subsequent processes. The outside of the processing box 1 is fixedly connected with guide rails and limit frames. The limit frames are used to position the chip tray 6 after installation to prevent the chip tray 6 from falling off. The chip tray 6 is easy to install and remove, and is convenient for cleaning impurities and maintaining the device.

[0053] Meanwhile, the surfaces of the first grinding roller 52 and the two sets of second grinding rollers 53 are all wrapped with wear-resistant flexible polishing cloth. The mesh size of the polishing cloth is 200-300 mesh, which can effectively remove oxide scale and impurities, and avoid damage to the copper wire substrate by rigid grinding.

[0054] like Figure 6 As shown, in a further preferred embodiment, the high-pressure rinsing mechanism 7 includes an inner rinsing box 71, an outer rinsing plate 72 and a water pump 75. Multiple sets of nozzles 73 for spraying water onto copper wires are provided on opposite sides of the inner rinsing box 71 and the outer rinsing plate 72. The outlet of the water pump 75 is connected to a connecting pipe 74 that is connected to the inner rinsing box 71 and the outer rinsing plate 72.

[0055] The inner rinsing box 71 and the U-shaped outer rinsing plate 72 work together to perform high-pressure spray rinsing from both the inside and outside of the copper wire, achieving all-round, no-dead-angle rinsing of the circumferential surface of the copper wire, thoroughly removing the debris and impurities remaining after polishing. Meanwhile, the multiple sets of nozzles 73 are evenly distributed to ensure uniform rinsing water pressure and volume, improving the rinsing effect.

[0056] All nozzles 73 are high-pressure atomizing nozzles 73. The nozzles 73 on the inner flushing box 71 and the outer flushing plate 72 are distributed in a ring at equal intervals. The water spraying pressure of the nozzles 73 is 0.3-0.5MPa, which ensures that the flushing water is atomized and evenly covers the surface of the copper wire, thereby improving the flushing effect.

[0057] like Figure 2 As shown, the flushing wheel assembly 16 includes multiple sets of flushing guide rollers, which are arranged in a rectangular array. The inner flushing box 71 is arranged between the multiple sets of flushing guide rollers. The front view of the outer flushing plate 72 is U-shaped. An outlet roller 17 is installed on the side of the inner cavity of the treatment box 1 away from the inlet roller 91. A return slope 18 is provided in the inner cavity of the treatment box 1 below the outlet roller 17.

[0058] The output roller 17 enables the smooth output of copper wire, and the return slope 18 can concentrate and collect the water generated during air drying, preventing wastewater from accumulating in the treatment tank 1. A drain outlet is provided on one side of the treatment tank 1 below the return slope 18. A filter screen is installed at the drain outlet, and the drain outlet is connected to an external wastewater recovery tank through a pipe to realize the centralized recovery and filtration of the rinsing water, which can be recycled and save water resources.

[0059] The inlet roller 91, oil-immersing roller 92, polishing guide roller, rinsing guide roller and outlet roller 17 are all rotatably connected to the inner cavity side wall of the treatment box 1 through bearings. The bearings are sealed and waterproof bearings to prevent oil and water from entering and causing the bearings to jam, and to ensure that each roller rotates smoothly.

[0060] like Figure 7 As shown, specifically, the air drying mechanism 8 includes an air pump 81 and an annular pipe 83. An air pipe 82 that penetrates the processing box 1 is installed between the air pump 81 and the annular pipe 83. One end of the annular pipe 83 is integrally formed with two sets of extension pipes 84. The inner walls of the two sets of extension pipes 84 and the inner wall of the annular pipe 83 are provided with air holes 85 for blowing air onto the copper wire.

[0061] High-pressure airflow is provided by air pump 81 and delivered to annular tube 83 and extension tube 84 through air pipe 82. Multiple sets of air holes 85 on the inner wall of annular tube 83 and extension tube 84 are used to achieve annular all-round air blowing on the circumferential surface of copper wire, so that there are no dead corners and the residual moisture on the surface of copper wire is dried quickly. The air holes 85 are evenly distributed to ensure uniform air blowing force and air volume, improve drying efficiency, and avoid moisture residue affecting the adhesion of the subsequent tin plating of copper wire.

[0062] In use, the copper wire to be treated is inserted through the through hole 11 on one side of the treatment box 1, guided by the guide roller 91 of the oil immersion roller group 9, and then passes around the oil immersion roller 92 located at the bottom of the inner cavity of the treatment box 1. It is then completely immersed in the neutral oil in the neutral oil storage chamber, achieving the dissolution and removal of surface oil. After being elastically tensioned by the tension roller 93, it is conveyed to the oil scraping mechanism 10. The elastic hoop 104 of the oil scraping mechanism 10 and the rubber scraper 105 are in close contact with the surface of the copper wire to scrape off excess neutral oil from the surface of the copper wire, preventing oil from being carried into subsequent processes. After degreasing, the copper wire enters the polishing station through the first baffle 13. Under the guidance and support of the polishing guide roller of the polishing wheel group 15, it passes between the first grinding roller 52 and the two sets of second grinding rollers 53 of the polishing mechanism 5. The motor 51 drives the synchronous sprocket 54 and the chain 55 to drive the first grinding roller 52 and the two sets of second grinding rollers 53 to rotate synchronously, and perform all-round mechanized grinding and polishing on the circumferential surface of the copper wire to completely remove oxide scale and impurities. The polishing debris falls into the debris disk 6 below for collection.

[0063] After polishing, the copper wire enters the rinsing station through the second baffle 14. Guided by the rinsing guide rollers of the rinsing wheel group 16, it passes through the gap between the inner rinsing box 71 and the U-shaped outer rinsing plate 72. The water pump 75 provides high-pressure water flow to the nozzles 73 of the inner rinsing box 71 and the outer rinsing plate 72 through the connecting pipe 74. High-pressure spray rinsing is performed simultaneously from both the inner and outer sides of the copper wire to remove polishing residue and impurities. The rinsed copper wire continues to be transported to the air drying station. The high-pressure airflow generated by the air pump 81 is transported to the annular pipe 83 and the extension pipe 84 through the air pipe 82. The airflow is blown in an all-round ring through the multiple sets of air holes 85 on the inner wall to quickly dry the residual moisture on the surface of the copper wire. Finally, it is guided by the exit roller 17 and passes through the through hole 11 on the other side of the processing box 1, completing all the external surface treatment processes before copper wire tin plating, thereby reducing secondary pollution during equipment transfer.

[0064] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An external surface treatment apparatus for tin plating of copper wire, characterized in that, include: The processing box (1), and the oil-immersing wheel group (9), polishing wheel group (15) and rinsing wheel group (16) installed in the inner cavity of the processing box (1) guide and transport the copper wire to be processed through the oil-immersing wheel group (9), polishing wheel group (15) and rinsing wheel group (16); Polishing mechanism (5) is used to polish the copper wire that has passed through the polishing wheel set (15); High-pressure rinsing mechanism (7) is used to perform high-pressure rinsing on copper wires that have passed through the rinsing wheel assembly (16); The air drying mechanism (8) is used to dry the surface moisture of the copper wire after high-pressure rinsing; The top of the processing box (1) is detachably connected to a cover plate (2), and both sides of the processing box (1) are provided with through holes (11) for copper wires to pass through.

2. The external surface treatment device for tin plating copper wire according to claim 1, characterized in that: The oil-immersing roller assembly (9) includes an inlet roller (91), an oil-immersing roller (92), and a tensioning roller (93). The inlet roller (91) and the tensioning roller (93) are both arranged on the same horizontal plane. The oil-immersing roller (92) is arranged at the bottom of the inner cavity of the processing box (1). The inlet roller (91), the oil-immersing roller (92), and the tensioning roller (93) are arranged in a triangular array.

3. The external surface treatment device for tin plating copper wire according to claim 2, characterized in that: It also includes a tensioning mechanism (4) for installing the tensioning roller (93). The tensioning mechanism (4) includes two sets of sliders (41) slidably disposed on the inner wall of the processing line. One side of each set of sliders (41) is fixedly connected to a telescopic rod (42), and a spring (43) is sleeved on the outer side of the telescopic rod (42). Slide grooves (12) for sliding of the sliders (41) are opened on both sides of the inner cavity of the processing box (1). A sliding plate (44) located on the outer side of the processing box (1) is fixedly connected to the opposite side of each set of sliders (41).

4. The external surface treatment device for tin plating copper wire according to claim 3, characterized in that: The processing box (1) is fixedly connected to a first baffle (13) and a second baffle (14). An oil scraping mechanism (10) located in the processing box (1) is installed above the first baffle (13). A neutral oil storage chamber is provided on one side of the processing box (1) and the first baffle (13), and the neutral oil storage chamber is used to remove oil stains from the surface of the copper wire.

5. The external surface treatment device for tin plating copper wire according to claim 4, characterized in that: The oil scraping mechanism (10) includes a mounting frame (101), and positioning bolts (102) that are bolted to the treatment box (1) are inserted on both sides of the mounting frame (101). An elastic hoop (104) is provided on the lower surface of the mounting frame (101), and multiple sets of rubber scraper strips (105) are bonded to the inner wall of the elastic hoop (104). A reinforcing rib (103) is provided on the upper surface of the mounting frame (101).

6. The external surface treatment device for tin plating copper wire according to claim 5, characterized in that: The polishing mechanism (5) includes a first polishing roller (52) and two sets of second polishing rollers (53) rotatably disposed in the inner cavity of the processing box (1) and located between the first baffle (13) and the second baffle (14). The first polishing roller (52) and the two sets of second polishing rollers (53) are arranged in a triangular array. One end of the first polishing roller (52) and the two sets of second polishing rollers (53) passes through the processing box (1) and is fixedly connected to a synchronous sprocket (54). Chains (55) are provided on the multiple sets of synchronous sprockets (54). The other end of the first polishing roller (52) passes through the processing box (1) and is driven by a motor (51).

7. The external surface treatment device for tin plating copper wire according to claim 6, characterized in that: The polishing wheel assembly (15) includes multiple polishing guide rollers arranged in a triangular array. The first grinding roller (52) and two sets of second grinding rollers (53) are arranged between the multiple polishing guide rollers. The lower end of the processing box (1) adjacent to the through hole (11) is connected to a chip disk (6) located below the polishing wheel assembly (15).

8. The external surface treatment device for tin plating copper wire according to claim 7, characterized in that: The high-pressure rinsing mechanism (7) includes an inner rinsing box (71), an outer rinsing plate (72) and a water pump (75). Multiple sets of nozzles (73) for spraying water onto copper wires are provided on opposite sides of the inner rinsing box (71) and the outer rinsing plate (72). The outlet of the water pump (75) is connected to a connecting pipe (74) that is connected to the inner rinsing box (71) and the outer rinsing plate (72).

9. The external surface treatment device for tin plating copper wire according to claim 8, characterized in that: The flushing wheel assembly (16) includes multiple sets of flushing guide rollers, which are arranged in a rectangular array. The inner flushing box (71) is arranged between the multiple sets of flushing guide rollers. The front view section of the outer flushing plate (72) is U-shaped. An outlet roller (17) is installed on the side of the inner cavity of the treatment box (1) away from the inlet roller (91). A return slope (18) is provided in the inner cavity of the treatment box (1) below the outlet roller (17).

10. The external surface treatment apparatus for tin plating copper wire according to claim 9, characterized in that: The air drying mechanism (8) includes an air pump (81) and an annular pipe (83). An air pipe (82) that penetrates the processing box (1) is installed between the air pump (81) and the annular pipe (83). One end of the annular pipe (83) is integrally formed with two sets of extension pipes (84). The inner walls of the two sets of extension pipes (84) and the inner walls of the annular pipe (83) are provided with air holes (85) for blowing air onto the copper wire.

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