Diversified enameled wire conductive wire pretreatment device and treatment method thereof

Abstract

The diversified enameled wire conductive wire pretreatment device comprises a supporting frame, an annealing treatment structure and a drying treatment structure are arranged on the supporting frame, the annealing treatment structure comprises a circulating groove, an annealing groove, a control device, multiple sets of heating pieces, a positioning plate and multiple sets of sensors are arranged on the circulating groove, and multiple sets of positioning holes are formed in the positioning plate. A drain pipe and a circulating pipe are arranged at the bottom of the circulating tank, a circulating pump is arranged on the circulating pipe, the water outlet end of the circulating pipe is located above a tank opening of the annealing tank, the annealing tank is provided with a plurality of groups of feeding pipes and discharging holes matched with the feeding pipes in an aligned mode, an overflow pipe is arranged in the annealing tank, and the water outlet end of the overflow pipe is located above the tank opening of the circulating tank. And a water inlet pipe is arranged on the annealing tank and is connected with a deionized water supply device. By adopting the structure, the surface quality and the conductivity of the conductive wire are improved, the pretreatment process is accurate and controllable, the treatment flow is optimized, the production efficiency is improved, the adaptability and the operation convenience of the device are enhanced, and the production loss and the cost are reduced.

Description

Technical Field

[0001] This invention relates to the field of enameled wire production and processing technology, and in particular to a diversified pretreatment device and method for conductive wires in enameled wires. Background Technology

[0002] As a core conductive component in motors, electrical appliances, and electronic instruments, the pretreatment quality of enameled wire directly determines the electrical performance, mechanical strength, and service life of the final product. During the initial processing such as drawing and stranding, contaminants such as rolling oil and dust easily adhere to the surface of the conductive wire, while residual stress is generated internally. If not effectively treated, problems such as poor paint film adhesion, pinholes, and cracking will occur during the subsequent painting and baking process. In severe cases, this can lead to a decrease in the insulation performance of the enameled wire and cause short circuit failures in equipment.

[0003] Currently, most conductive wire pretreatment devices on the market adopt the traditional process of "high-temperature annealing + natural cooling + manual decontamination," which has many drawbacks: First, the annealing process often uses ordinary tap water as a cooling medium. The calcium and magnesium ions in the water can easily form an oxide layer on the surface of the conductive wire, which aggravates the corrosion of the conductive wire and affects its conductivity. Second, there is a lack of real-time monitoring of key parameters of the annealing medium. Problems such as water temperature fluctuations and oil accumulation cannot be detected in time, resulting in unstable annealing quality. Third, oil removal relies on manual wiping, which is inefficient and results in uneven cleanliness. The subsequent drying process is mostly overall hot air drying, which can easily lead to local water stains and increase the risk of paint film defects.

[0004] To address the aforementioned issues, there is an urgent need for a pretreatment device that can integrate annealing, decontamination, and drying, and precisely control key parameters of the process, in order to improve the pretreatment quality and production efficiency of conductive wires and meet the production requirements of high-quality enameled wires. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a diversified pretreatment device and method for enameled wire conductive wire, which improves the surface quality and conductivity of conductive wire, achieves precise and controllable pretreatment process, optimizes the processing flow, improves production efficiency, enhances the adaptability and ease of operation of the device, and reduces production losses and costs.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a diversified enameled wire conductive wire pretreatment device, including a support frame, on which an annealing treatment structure and a drying treatment structure are provided. The annealing treatment structure includes a circulation tank, on which an annealing tank, a control device, multiple sets of heating elements, a positioning plate, and multiple sets of sensors are provided. The positioning plate is provided with multiple sets of positioning holes. A drain pipe and a circulation pipe are provided at the bottom of the circulation tank. A circulation pump is provided on the circulation pipe. The water outlet of the circulation pipe is located above the opening of the annealing tank. The annealing tank is provided with multiple sets of feed pipes and discharge holes that are aligned with the feed pipes. An overflow pipe is provided inside the annealing tank. The water outlet of the overflow pipe is located above the opening of the circulation tank. A water inlet pipe is provided on the annealing tank and is connected to a deionized water supply device.

[0007] In a preferred embodiment, the multiple sets of sensors are an ion content sensor, an oil content sensor, and a water temperature sensor.

[0008] In a preferred embodiment, the discharge end of the annealing tank is equipped with an oil-removing clamp.

[0009] In a preferred embodiment, the multiple sets of feed pipes are arranged obliquely downwards from the feed end to the discharge end, and the discharge end of the feed pipe is lower than the top height of the overflow pipe.

[0010] In a preferred embodiment, the circulation tank is provided with a fixed frame, the fixed frame is provided with an air passage, one end of the air passage is provided with multiple sets of air jet pipes that correspond one-to-one with the direction of multiple sets of feed pipes, and the other end of the air passage is connected to an air pump. In a preferred embodiment, the drying structure includes a mounting frame with a drying chamber mounted on it. The inlet and outlet ends of the drying chamber are each provided with multiple sets of corresponding first and second feed pipes. The top of the drying chamber is provided with a ventilation hood connected to a hot air pipe. The inlet end of the mounting frame is provided with a first guide wheel set, and the outlet end of the drying chamber is provided with a material distribution toothed plate, which is provided with a second guide wheel set.

[0011] In a preferred embodiment, the drying chamber is arranged obliquely upwards from the inlet end to the outlet end.

[0012] In a preferred embodiment, the mounting frame is symmetrically provided with mounting screws, a base plate is mounted on the mounting screws, a first dewatering felt and a limit adjustment screw are provided on the base plate, a top plate is mounted on the limit adjustment screw, and a second dewatering felt is provided at the bottom of the top plate to clamp and cooperate with the first dewatering felt.

[0013] The diversified enameled wire conductive wire pretreatment device and method provided by the present invention, by adopting the above-described structure, have the following beneficial effects: (1) Deionized water is used as the annealing cooling medium, and the ion content sensor is used for real-time monitoring to effectively avoid the problem of excessive oxidation of conductive wires caused by metal ions in ordinary water and reduce the thickness of the surface oxide layer. At the same time, the oil content sensor accurately detects and treats oil stains in conjunction with the physical cleaning effect of the oil removal plate, which significantly improves the surface cleanliness of the conductive wires and provides a good foundation for subsequent paint film adhesion. (2) By constructing a comprehensive monitoring system through multiple sets of sensors, and cooperating with the control device to collect key parameters of the annealing medium in real time, the conductive wire can be continuously processed from annealing, decontamination to drying, reducing intermediate transfer links, shortening the conductive wire processing path, and achieving efficient utilization of water resources and reducing production energy consumption. (3) By controlling the temperature and monitoring the medium, the performance degradation of the conductive wire caused by improper annealing is reduced; the water circulation system with overflow design reduces the consumption of deionized water; the automated cleaning and drying process reduces manual intervention, reducing labor costs and losses caused by human error. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 3 This is a schematic diagram of the annealing process structure of the present invention.

[0017] Figure 4 This is a schematic diagram of the drying process structure of the present invention.

[0018] Figure 5 This is a schematic diagram of the drying process structure of the present invention.

[0019] In the diagram: 1. Support frame; 2. Annealing structure; 3. Drying structure; 4. Circulation tank; 5. Annealing tank; 6. Control device; 7. Heating element; 8. Positioning plate; 9. Positioning hole; 10. Drainage pipe; 11. Circulation pipe; 12. Circulation pump; 13. Fixing frame; 14. Ventilation pipe; 15. Air jet pipe; 16. Air pump; 17. Feed pipe; 18. Discharge hole; 19. Overflow pipe; 20. Degreasing clamp; 21. Water inlet pipe; 22. Deionized water supply device; 23. Mounting frame; 24. Drying oven; 25. First guide wheel assembly; 26. First feed pipe; 27. Ventilation hood; 28. Hot air pipe; 29. ​​Mounting screw; 30. Base plate; 31. First dewatering felt; 32. Top plate; 33. Second dewatering felt; 34. Limit adjustment screw; 35. Second feed pipe; 36. Distributing toothed plate; 37. Second guide wheel assembly. Detailed Implementation

[0020] Example 1: like Figure 1-5 The multi-functional enameled wire conductive wire pretreatment device includes a support frame 1 that provides overall support and fixation. The support frame 1 integrates an annealing treatment structure 2 for annealing and preliminary cleaning of the conductive wire and a drying treatment structure 3 for drying and shaping the conductive wire, achieving integrated pretreatment of the entire process. The annealing treatment structure 2 includes a circulation tank 4 for containing circulating media and allowing impurities to settle. The circulation tank 4 integrates an annealing tank 5, a control device 6 for controlling equipment operating parameters, multiple sets of heating elements 7 for water temperature regulation, a positioning plate 8 for guiding the conductive wire, and multiple sets of sensors 38 for real-time monitoring of key parameters. The control device 6 is electrically connected to the heating elements 7, sensors 38, and other components, and can automatically adjust the equipment's operating status based on monitoring data. The positioning plate 8 has multiple sets of positioning holes 9 that match the specifications of the conductive wire, ensuring a stable trajectory for the conductive wire. The bottom of the circulation tank 4 is equipped with a drain pipe 10 for periodic sewage discharge and a circulation pipe 11 for water circulation. The drain pipe 10 is connected to an external oil-water separation system. A circulation pump 12 is installed on the circulation pipe 11 to provide circulation power. The outlet end of the circulation pipe 11 extends above the opening of the annealing tank 5, allowing the circulating water to be sprayed evenly into the annealing tank 5. The annealing tank 5 is equipped with multiple sets of feed pipes 17 for conductive wires to enter and discharge holes 18 that are aligned with the feed pipes 17, ensuring a continuous path for the conductive wires to enter and exit. An overflow pipe 19 is provided inside the annealing tank 5 to control the water level in the tank. The outlet end of the overflow pipe 19 is located above the opening of the circulation tank 4, allowing excess water and surface oil to flow back to the circulation tank 4 for treatment. The annealing tank 5 is equipped with a water inlet pipe 21 for replenishing fresh media. The water inlet pipe 21 is connected to a deionized water supply device 22 that provides deionized water that meets the requirements, ensuring that the annealing media always meets the process standards.

[0021] In the preferred embodiment, the multiple sets of sensors 38 are an ion content sensor, an oil content sensor, and a water temperature sensor. Each sensor is electrically connected to the control device 6. The ion content sensor is used to monitor the ion content of the deionized water in the annealing tank 5 in real time. The oil content sensor monitors the accumulation of oil in the medium. The water temperature sensor accurately collects the water temperature data in the tank. The monitoring data is transmitted to the control device 6 in real time for timely adjustment.

[0022] In a preferred embodiment, the discharge end of the annealing tank 5 is provided with an oil removal clamp 20. The oil removal clamp 20 is equipped with a flexible wiping component inside, and its clamping force can be controlled by an adjustment structure. It can effectively remove oil and residual media adhering to the surface of the conductive wire without damaging the surface of the conductive wire.

[0023] In a preferred embodiment, the multiple sets of feed pipes 17 are arranged obliquely downwards from the feed end to the discharge end. This inclined structure allows the conductive wire to travel smoothly under the action of gravity, while ensuring that the conductive wire is completely immersed in the annealing medium, thus guaranteeing a uniform annealing effect. The discharge end of the feed pipe 17 is lower than the top height of the overflow pipe 19, further ensuring that the conductive wire remains below the liquid surface during the annealing process.

[0024] In a preferred embodiment, the circulation tank 4 is equipped with a mounting bracket 13 for fixing the ventilation pipe. The mounting bracket 13 is fitted with the ventilation pipe 14, and the input end of the ventilation pipe 14 is equipped with a filter to remove oil, ensuring that the incoming compressed air meets the oil content requirements. One end of the ventilation pipe 14 is equipped with multiple sets of jet pipes 15, each corresponding to a specific direction of a set of feed pipes 17. The outlet direction of the jet pipes 15 faces the inlet of the feed pipes 17, enabling pre-cleaning of the conductive wires entering the feed pipes 17 and preventing backflow of the medium. The other end of the ventilation pipe 14 is connected to an air pump 16 that provides compressed air, providing stable power for the jetting process.

[0025] In a preferred embodiment, the drying structure 3 includes a mounting frame 23 for installation and fixation. A drying chamber 24 for drying the conductive wire is mounted on the mounting frame 23. The inlet and outlet ends of the drying chamber 24 are respectively equipped with multiple sets of corresponding first feed pipes 26 and second feed pipes 35. The first feed pipes 26 and second feed pipes 35 guide the conductive wire into and out of the drying chamber 24, ensuring a stable trajectory. The top of the drying chamber 24 is equipped with a diffuser 27 for introducing hot air. The diffuser 27 is connected to a hot air pipe 28 that provides hot air. The hot air delivered by the hot air pipe 28 is evenly dispersed into the interior of the drying chamber 24 through the diffuser 27, ensuring uniform drying. The inlet end of the mounting frame 23 is equipped with a first guide wheel set 25 for guidance, which assists the conductive wire in smoothly entering the drying structure 3. The discharge end of the drying box 24 is provided with a material separating tooth plate 35 for material separation. The material separating tooth plate 35 can separate multiple conductive wires to prevent them from tangling together. The material separating tooth plate 35 is provided with a second guide wheel group 37 for guiding the conductive wires out of the box.

[0026] In a preferred embodiment, the drying chamber 24 is inclined upward from the inlet end to the outlet end. This inclined structure facilitates the downward flow of condensate on the surface of the conductive wire under the action of gravity, avoiding the formation of water stains on the surface of the conductive wire and improving the drying quality.

[0027] In a preferred embodiment, the mounting bracket 23 is symmetrically equipped with mounting screws 29 for installation and adjustment. A base plate 30 is mounted on the mounting screws 29. The base plate 30 is equipped with a first dewatering felt 31 for initial water removal and a limiting adjustment screw 34 for adjusting the spacing. A top plate 32 is mounted on the limiting adjustment screw 34. A second dewatering felt 33, which clamps tightly to the first dewatering felt 31, is located at the bottom of the top plate 32. By rotating the limiting adjustment screw 34, the clamping degree between the first dewatering felt 31 and the second dewatering felt 33 can be adjusted to accommodate conductive wires of different diameters, ensuring the dewatering effect while avoiding damage to the conductive wires. Both the first dewatering felt 31 and the second dewatering felt 33 are detachable for easy periodic inspection and replacement.

[0028] Example 2: like Figure 1-5 In this process, the resistivity of deionized water must be ≥10MΩ·cm to ensure that the ion content meets the lower limit requirements of sensor monitoring. The pH value of the deionized water in the annealing tank 5 is controlled between 6.5 and 7.5 to avoid corrosion of the conductive wire; the compressed air transported by the jet pipe 15 must be filtered and degreased, with an oil content ≤0.1mg / m³, to prevent secondary pollution. The annealing water temperature is adjusted according to the material of the conductive wire. For copper conductive wire, the temperature is controlled at 70-80℃, and for aluminum conductive wire, the temperature is controlled at 60-70℃. The water temperature fluctuation range is ≤±2℃. The hot air temperature inside the drying oven is controlled at 120-150℃, and the air velocity at the outlet is 3-5m / s, to ensure that the surface of the conductive wire dries quickly and does not oxidize or discolor. The travel speed of the conductive wire is adjusted according to the specifications. The speed of the conductive wire with a diameter of 0.1-0.5mm is controlled at 5-8m / min, and the speed of the conductive wire with a diameter of 0.5-2mm is controlled at 3-5m / min. The water circulation rate of the circulating pump 12 is matched with the volume of the annealing tank 5 to ensure that the water circulation times are ≥5 times per hour. The wiping pad of the degreaser 20 should be replaced every 8 hours; The first dewatering felt 31 and the second dewatering felt 33 should be checked every 4 hours and replaced in time if they become damp, saturated or damaged. The circulation tank 4 should be thoroughly cleaned once a week to remove impurities deposited at the bottom.

[0029] During operation, the surface temperature of the drying chamber 24 should be ≤45℃ to avoid the risk of burns. Wastewater discharged from drain pipe 10 needs to be treated by an oil-water separator before being discharged, with an oil removal rate of ≥95%.

[0030] Example 3: like Figure 1-5 The working principle of this invention is as follows: Step 1: Start the equipment through the control device 6. The deionized water supply device 22 injects deionized water into the annealing tank 5 through the water inlet pipe 21. At the same time, the circulation pump 12 starts, so that the circulation tank 4 and the annealing tank 5 form a water circulation. Step 2: The heating element 7 starts working, the water temperature sensor monitors the water temperature in the annealing tank 5 in real time, and feeds back to the control device 6 to adjust the water temperature to the preset annealing temperature of 70 degrees Celsius. The ion content sensor and oil content sensor are initialized, and the initial parameters of the deionized water are detected to ensure that they meet the pretreatment requirements. Step 31: The enameled wire conductor enters the annealing tank 5 at an angle through the feed pipe 17 and directly enters the deionized water in the annealing tank 5. The overflow pipe 19 controls the liquid level in the annealing tank 5. After annealing, the conductor enters the degreasing plate 20 through the discharge hole 18 for cleaning, and then enters the air jet pipe 15. In the air jet pipe 15, the water stains attached to its surface are quickly peeled off by the high-speed airflow. Step 4: After cleaning, the conductive wire passes through the positioning hole 9 and is then held by the felt to remove water again with the cooperation of the first guide wheel group 25. Step 5: After secondary dehydration, the conductive wire enters the drying chamber 24 through the first feed pipe 26 and is dried by high-temperature hot air. Then it is discharged through the second feed pipe 35 and transported to the subsequent painting and baking equipment with the help of the distribution tooth plate 36 and the second guide wheel group 37. Step Six: During the pretreatment process, the ion content sensor, oil content sensor, and water temperature sensor monitor the ion content and oil content of the annealing cleaning water in the circulation tank 4 and annealing tank 5 in real time, and adjust them at any time through the drain pipe 10, heating element 7, and water inlet pipe 21. The beneficial effects of this invention are as follows: Using deionized water as the annealing cooling medium, coupled with real-time monitoring by an ion content sensor, effectively avoids the problem of excessive oxidation of the conductive wires caused by metal ions in ordinary water, reducing the thickness of the surface oxide layer; simultaneously, the oil content sensor accurately detects and processes oil contaminants, combined with the physical cleaning effect of the degreasing clamp, significantly improving the surface cleanliness of the conductive wires and providing a good foundation for subsequent paint film adhesion; a comprehensive monitoring system is constructed through multiple sets of sensors, which, together with the control device, collects key parameters of the annealing medium in real time, enabling continuous processing of the conductive wires from annealing, decontamination to drying, reducing intermediate transfer links, shortening the conductive wire processing path, and achieving efficient water resource utilization while reducing production energy consumption; precise temperature control and medium monitoring reduce the performance degradation of the conductive wires caused by improper annealing; the water circulation system with overflow design reduces deionized water consumption; and the automated decontamination and drying process reduces manual intervention, lowering labor costs and losses caused by human error.

Claims

1. A diversified enameled wire conductive filament pretreatment device, comprising a support frame (1), an annealing treatment structure (2) and a drying treatment structure (3) are arranged on the support frame (1), characterized in that: The annealing treatment structure (2) comprises a circulating groove (4), the circulating groove (4) is provided with an annealing groove (5), a control device (6), a plurality of heating elements (7), a positioning plate (8) and a plurality of sensors (38), the positioning plate (8) is provided with a plurality of positioning holes (9), the bottom of the circulating groove (4) is provided with a drain pipe (10) and a circulating pipe (11), the circulating pipe (11) is provided with a circulating pump (12), the water outlet end of the circulating pipe (11) is located above the groove opening of the annealing groove (5), the annealing groove (5) is provided with a plurality of feeding pipes (17) and a discharging hole (18) matched with the feeding pipes (17), the annealing groove (5) is provided with an overflow pipe (19), the water outlet end of the overflow pipe (19) is located above the groove opening of the circulating groove (4), the annealing groove (5) is provided with a water inlet pipe (21), and the water inlet pipe (21) is connected with a deionized water supply device (22).

2. The polyvariegated enameled wire conductor filament pretreatment apparatus of claim 1, wherein: The plurality of sensors (38) are respectively ion content sensors, oil stain content sensors and water temperature sensors.

3. The polyvariegated enameled wire conductor filament pretreatment apparatus of claim 1, wherein: The discharging end of the annealing groove (5) is provided with an oil stain removing clamp plate (20).

4. The polyvariegated enameled wire conductor filament pretreatment apparatus of claim 1, wherein: The plurality of feeding pipes (17) are arranged obliquely downward from the feeding end to the discharging end, and the discharging end of the feeding pipe (17) is lower than the top height of the overflow pipe (19).

5. The multiple varnished wire conductor filament pretreatment apparatus of claim 1 wherein: The circulating groove (4) is provided with a fixing frame (13), the fixing frame (13) is provided with an air vent pipeline (14), one end of the air vent pipeline (14) is provided with a plurality of jet pipes (15) corresponding to the running positions of the plurality of feeding pipes (17) one by one, and the other end of the air vent pipeline (14) is in communication with an air pump (16).

6. The diversified enameled wire conductor filament pretreatment apparatus of claim 1, wherein: The drying treatment structure (3) comprises a mounting frame (23), the mounting frame (23) is provided with a drying box (24), the feeding end and the discharging end of the drying box (24) are respectively provided with a plurality of first feeding pipes (26) and second feeding pipes (35) corresponding to each other, the top of the drying box (24) is provided with a gas distribution cover (27), the gas distribution cover (27) is in communication with a hot air pipe (28), the feeding end of the mounting frame (23) is provided with a first guide wheel set (25), the discharging end of the drying box (24) is provided with a distribution tooth plate (35), and the distribution tooth plate (35) is provided with a second guide wheel set (37).

7. The polyvariegated enameled wire conductor filament pretreatment apparatus of claim 6, wherein: The drying box (24) is arranged obliquely upward from the feeding end to the discharging end.

8. The polyvariegated enameled wire conductor filament pretreatment apparatus of claim 6, wherein: The mounting frame (23) is symmetrically provided with mounting screws (29), the mounting screws (29) are provided with a bottom plate (30), the bottom plate (30) is provided with a first water removal felt (31) and a limiting adjustment screw (34), the limiting adjustment screw (34) is provided with a top plate (32), and the bottom of the top plate (32) is provided with a second water removal felt (33) clamped with the first water removal felt (31).

9. The process for treating a plurality of enameled wire conductive filaments according to any one of claims 1-8, wherein, The method comprises the following steps: Step one: starting the equipment through the control device (6), the deionized water supply device (22) injects deionized water into the annealing groove (5) through the water inlet pipe (21), and the circulating pump (12) is started, so that the circulating groove (4) and the annealing groove (5) form a water circulation; Step two: heating element (7) starts to work, water temperature sensor real-time monitoring of annealing tank (5) in the water temperature, feedback to the control device (6) will water temperature to the preset annealing temperature seventy degrees Celsius, ion content sensor and oil content sensor initialization, the initial parameters of deionized water detection, to ensure that meet the pretreatment requirements; Step three one: the conductive wire of the enameled wire oblique into the annealing tank (5) via the feed pipe (17), directly into the annealing tank (5) in the deionized water, overflow pipe (19) control the liquid level position in the annealing tank (5), the conductive wire after annealing via the discharge hole (18) into the oil dirt clamp plate (20) cleaning, then into the jet pipe (15), in the jet pipe (15) rely on high speed airflow fast peeling its surface attached to the water spot; Step four: after cleaning, the conductive wire through the positioning hole (9) after the cooperation of the first guide wheel group (25) again through the felt clamping water; Step five: after the second time, the conductive wire through the first material pipe (26) into the drying oven (24) inside through the high temperature hot air drying, then through the second material pipe (35) discharge and rely on the cooperation of the distribution of the tooth plate (36) and the second guide wheel group (37) to the subsequent paint baking equipment; Step six: in the pretreatment process, ion content sensor, oil content sensor and water temperature sensor real-time monitoring of annealing cleaning water in the circulating tank (4) and annealing tank (5) ion content and oil content, at any time through the drain pipe (10), heating element (7) and water inlet pipe (21) to control.

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