An enamelled wire coating device and method for improving the utilization rate of lubricant

Abstract

An enamelled wire coating device and method for improving the utilization rate of lubricant, which are disclosed by the present invention, include a uniform coating device installed beside a feeding mechanism. The uniform coating device comprises a fixed bracket, on which a plurality of guide wheels for guiding the enamelled wire are provided. A plurality of coating heads are also installed on the fixed bracket. A diversion sleeve for coating the lubricant is arranged inside the coating head. A quantitative perforation for scraping off the excess lubricant is provided at the top of the diversion sleeve. A plurality of support bars are arranged at equal intervals on the inner wall of the quantitative perforation. The support bars are used to support and guide the enamelled wire to pass through the quantitative perforation in the center. An upper diversion pipeline and a lower diversion pipeline are respectively arranged on the upper and lower sides of each coating head. Both the upper diversion pipeline and the lower diversion pipeline are used to control the airflow to swirl along the outer wall of the enamelled wire. A dust cleaning wire threading seat for cleaning the outer wall of the enamelled wire is installed at the bottom of the lower diversion pipeline. The present invention improves the utilization rate of the lubricant and the coating uniformity.

Description

Technical Field

[0001] The present invention relates to the technical field of coating devices for enameled wire processing, and specifically to an enameled wire coating device and method for improving the utilization rate of lubricant. Background Art

[0002] During the production process of enameled wire, generally multiple processes are required, and coating the enameled wire with a liquid lubricant is one of the processes. Coating the liquid lubricant can facilitate subsequent processing and transportation of the enameled wire, and also reduce friction.

[0003] In the prior art, for example, Chinese Patent Application (Publication No. CN114082584A) discloses a batch coating device for surface lubricant of enameled wire, aiming to design a batch coating device for surface lubricant of enameled wire that can simultaneously coat six coils of enameled wire with a liquid lubricant to improve work efficiency and reduce the time spent. Specifically, the above-mentioned batch coating device for surface lubricant of enameled wire has a structure including a base, a support frame, a grooved feed pipe, etc. A support frame is fixedly connected to the middle of the rear side of the top of the base, and a grooved feed pipe is fixedly penetrated through the bottom end of the front side of the upper part of the support frame. The coating device slews six coils of enameled wire on the unwinding mechanism, and pulls the unwinding mechanism to straighten the enameled wire. Then, the electric heating spiral plate is started to scrape off the paste lubricant and heat it to melt into a liquid lubricant. Next, the driving mechanism is started, and the driving mechanism drives the cylinder to rotate forward, so that the felt rotates forward to coat the liquid lubricant on the six coils of enameled wire. In this way, the six coils of enameled wire are simultaneously coated with the liquid lubricant, with high work efficiency and less time spent.

[0004] Although the coating device disclosed in the above prior art can achieve batch coating through the direct contact between the felt and the enameled wire. However, this traditional method has several technical defects, seriously affecting the coating effect and the utilization efficiency of the lubricant. Since the felt directly contacts the surface of the enameled wire, if there is dust or dirt attached to the surface of the enameled wire, these impurities will inevitably be transferred to the felt. Over time, the dirt on the felt gradually accumulates, not only exacerbating the wear of the felt, but also seriously affecting the uniform coating of the lubricant. The presence of dirt reduces the quality of the coating layer, which may lead to a decline in the performance of the enameled wire during subsequent processing or use.

[0005] In addition, when using a felt for coating, it is difficult to precisely control the adsorption amount of the lubricant. There may be differences in the adsorption capacity of different regions of the felt, resulting in insufficient adsorption amount of the lubricant in some regions, with poor coating effect; while in some regions, the adsorption amount is excessive, causing waste of the lubricant. This non-uniform coating not only increases the production cost, but also may have an adverse impact on the overall performance of the enameled wire. Summary of the Invention

[0006] In view of the above problems, an enameled wire coating device and method for improving lubricant utilization are provided, and the lubricant utilization and coating uniformity are improved through a uniform coating device.

[0007] To solve the problems of the prior art, the present invention provides an enameled wire coating device for improving the utilization rate of lubricant, including a uniform coating device installed beside a discharging mechanism, the uniform coating device including a fixed bracket, a plurality of guide wheels for guiding the enameled wire are provided on the fixed bracket, a plurality of coating heads are also installed on the fixed bracket, a guide sleeve for coating lubricant is provided inside the coating head, a quantitative perforation is provided on the top of the guide sleeve for scraping off excess lubricant, a plurality of support bars distributed at equal intervals on the inner wall of the quantitative perforation are provided, the support bars are used to support and guide the enameled wire to pass through the quantitative perforation in the center, an upper guide duct and a lower guide duct are respectively provided on the upper and lower sides of each coating head, the upper guide duct and the lower guide duct are both used to control the vortex flow of airflow along the outer wall of the enameled wire, and a dust cleaning threading seat for cleaning the outer wall of the enameled wire is installed at the bottom of the lower guide duct.

[0008] Preferably, the coating head includes an annular nozzle installed inside, a liquid guide flow hopper is installed below the annular nozzle, a mounting hole for installing a guide sleeve is provided at the axial position of the liquid guide flow hopper, and the liquid guide flow hopper is used to guide the lubricant to converge toward the guide sleeve.

[0009] Preferably, the upper guide duct and the lower guide duct have the same structure, an air intake duct for conveying airflow is installed on the upper guide duct, a pressure regulating valve for controlling the air pressure is installed on the air intake duct, and an air flow inner tube is also provided inside the upper guide duct for guiding the airflow to flow in a vortex along the outer wall of the enameled wire, and a first heating layer is provided on the inner wall of the upper guide duct.

[0010] Preferably, the inner wall of the inner airflow tube is provided with a plurality of air flow holes, a plurality of lower conical buckets are installed at equal intervals inside the inner airflow tube, a central air vent is provided at the bottom of the lower conical bucket, and a plurality of guide plates for guiding the vortex flow of the airflow are provided on the inner wall of the lower conical bucket.

[0011] Preferably, the cleaning threading seat includes a sealing bottom plate installed at the bottom of the lower guide pipe, and a snap-on mounting sleeve is also installed at the bottom of the sealing bottom plate. A detachable assembling sleeve is installed in the snap-on mounting sleeve, and a cleaning layer for cleaning the surface of the enameled wire is provided inside the assembling sleeve.

[0012] Preferably, the uniform coating device comprises an expansion adjustment device, on which two movable adjustment frames for synchronous adjustment are provided, and the two movable adjustment frames are respectively connected to the upper guide pipe and the lower guide pipe.

[0013] Preferably, the uniform coating device includes a circulating conveying device, which includes a plurality of anti-drip liquid storage barrels installed below the dust cleaning threading seat, and a conveying pipe is provided on the side of each anti-drip liquid storage barrel, and the end of the conveying pipe away from the anti-drip liquid storage barrel is connected to the coating head.

[0014] Preferably, the uniform coating device includes a plurality of one-way pushing pistons distributed inside each anti-drip liquid storage barrel. The one-way pushing piston includes a flow plate, a flow hole is provided at the axial center position of the flow plate, a floating film is provided at the bottom of the flow plate, and the uniform coating device further includes a one-way valve installed on the conveying pipe.

[0015] Preferably, the uniform coating device includes a circulating pushing device for driving a plurality of one-way pushing pistons to move up and down. A plurality of vertically movable push shafts are provided on the circulating pushing device, and the plurality of push shafts pass through the anti-drip liquid storage barrel and are connected to the one-way pushing piston.

[0016] An enameled wire coating method for improving the utilization rate of lubricant includes the following steps:

[0017] S1. Pass the enameled wire through the guide wheel, dust cleaning threading seat, lower diversion pipeline, coating head and upper diversion pipeline;

[0018] S2. Start the feeding mechanism to drive the enameled wire to move, and at the same time, perform preliminary dust cleaning treatment through the dust cleaning threading seat;

[0019] S3. The coating head aggregates and conveys the lubricant to the position of the diversion sleeve, so that the enameled wire adheres to the lubricant during the rising process. The enameled wire passes through the quantitative perforation of the coating head, and the support strip cooperates with the quantitative perforation to ensure the quantitative adhesion of the lubricant;

[0020] S4. The air flow inside the upper diversion pipeline blows towards the outer wall of the enameled wire to uniformly diffuse and coat the lubricant;

[0021] S5. The lower diversion pipeline guides the air flow to assist the lubricant to quickly and uniformly adhere, realizing pre-coating.

[0022] The beneficial effects of the present invention compared with the prior art are:

[0023] 1. Through the designed coating head structure, the diversion sleeve and quantitative perforation inside it, the present invention realizes the precise control of the lubricant conveying and coating process. The quantitative perforation and the support strip on the inner wall not only ensure the effective contact between the enameled wire and the lubricant when passing through, but also avoid excessive adhesion of the lubricant, thus significantly improving the utilization rate of the lubricant. At the same time, the stable air flow in the upper diversion pipeline and the lower diversion pipeline further promotes the uniform diffusion of the lubricant on the outer wall of the enameled wire, effectively solving the problem of uneven lubricant in the traditional coating process and significantly improving the coating uniformity.

[0024] 2. The ash-cleaning threading seat design in the present invention can perform preliminary ash cleaning on the enameled wire before applying the lubricant, effectively removing the dust and dirt on the surface of the enameled wire. This step not only prevents impurities from interfering with the coating process but also ensures that the lubricant can better adhere to the clean surface of the enameled wire, thereby improving the quality of the coating layer and the overall performance of the enameled wire. This is crucial for ensuring the stability and reliability of the enameled wire during subsequent processing or use.

[0025] 3. The present invention flexibly regulates the positions of the upper diversion pipe and the lower diversion pipe through the expansion adjustment device, enabling the equipment to adapt to the coating requirements of enameled wires with different diameters. This design not only enhances the adaptability of the equipment but also improves the operation convenience. In addition, the guide wheels evenly distributed on the fixed bracket ensure the stability of the enameled wire during transmission, further improving the coating effect. Overall, the design of this equipment takes into account the actual production needs, making the adjustment, maintenance, and operation processes simpler and more efficient, reducing the production cost, and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional schematic diagram of an enameled wire coating equipment for improving the utilization rate of lubricant according to the present invention.

[0027] Figure 2 is a front view of an enameled wire coating equipment for improving the utilization rate of lubricant according to the present invention.

[0028] Figure 3 is Figure 2 a plane cross-sectional view of the A-A section in

[0029] Figure 4 is a three-dimensional schematic diagram of a partial structure in an enameled wire coating equipment for improving the utilization rate of lubricant according to the present invention.

[0030] Figure 5 is a front view of the coating head in an enameled wire coating equipment for improving the utilization rate of lubricant according to the present invention.

[0031] Figure 6 is Figure 5 a plane cross-sectional three-dimensional view of the B-B section in

[0032] Figure 7 is a front view of the upper diversion pipe in an enameled wire coating equipment for improving the utilization rate of lubricant according to the present invention.

[0033] Figure 8 is Figure 7 a plane cross-sectional three-dimensional view of the C-C section in

[0034] Figure 9It is a three-dimensional schematic diagram of the lower conical hopper in an enameled wire coating device for improving the utilization rate of lubricant according to the present invention.

[0035] Figure 10 It is a three-dimensional schematic diagram of the lower diversion pipeline and the dust cleaning wire threading seat in an enameled wire coating device for improving the utilization rate of lubricant according to the present invention.

[0036] Figure 11 It is the front view of the circulating conveying device in an enameled wire coating device for improving the utilization rate of lubricant according to the present invention.

[0037] Figure 12 It is Figure 11 The plane sectional three-dimensional diagram of the D-D section in

[0038] Figure 13 It is Figure 12 The partial enlarged view at E in

[0039] Figure 14 It is Figure 12 The partial enlarged view at F in

[0040] Figure 15 It is a schematic diagram of the working state of the internal air flow in the upper diversion pipeline of an enameled wire coating device for improving the utilization rate of lubricant according to the present invention.

[0041] The reference numerals in the figure are:

[0042] 1. Enameled wire; 11. Lubricant; 2. Fixed bracket; 21. Guide wheel; 3. Coating head; 31. Annular nozzle; 32. Liquid guide hopper; 321. Air flow hole; 33. Deflector sleeve; 331. Quantitative perforation; 332. Support bar; 34. First exhaust pipe; 4. Upper flow guide pipe; 41. First wire clamping port; 42. Sealing plate; 43. Intake pipe; 44. Air pressure sensor; 45. Pressure regulating valve; 46. Air flow inner pipe; 461. Air flow through hole; 462. Lower conical hopper; 4621. Centering ventilation hole; 4622. Deflector plate; 464. Sealing rubber strip; 463. Second wire clamping port; 5. Lower flow guide pipe; 6. Dust cleaning wire threading seat; 61. Sealing bottom plate; 62. Second exhaust pipe; 63. Third wire clamping port; 64. Clamping installation sleeve; 65. Assembly sleeve; 651. Dust cleaning layer; 652. Sealing strip; 7. Expansion adjusting device; 71. Limit guide post; 72. Movable adjusting frame; 73. Connecting block; 74. Push rod; 75. Bidirectional adjusting screw rod; 76. Rotary drive; 8. Circulating conveying device; 81. Anti-drip liquid storage barrel; 811. Material receiving cover; 812. Filter layer; 82. Delivery pipe; 83. Check valve; 84. Unidirectional push piston; 842. Flow plate; 8421. Flow through hole; 843. Floating film; 85. Circulating push device; 851. Circulating guide sleeve; 8511. Circulating groove; 852. Rotating column; 8521. Sliding ball; 8522. Push shaft; 8523. Limit telescopic shaft; 853. Conical driving wheel; 854. Driving device. Detailed implementation mode

[0043] In order to further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes.

[0044] See Figures 1 to 15 As shown in the figure, an enameled wire coating device for improving the utilization rate of lubricant includes a uniform coating device installed beside the feeding mechanism. The uniform coating device includes a fixed bracket 2. A plurality of guide wheels 21 for guiding the enameled wire 1 are provided on the fixed bracket 2. A plurality of coating heads 3 are also installed on the fixed bracket 2. A deflector sleeve 33 for coating the lubricant 11 is provided inside the coating head 3. A quantitative perforation 331 for scraping off the excess lubricant 11 is provided at the top of the deflector sleeve 33. A plurality of support bars 332 are provided on the inner wall of the quantitative perforation 331 at equal intervals. The support bars 332 are used to support and guide the enameled wire 1 to pass through the quantitative perforation 331 in the center. An upper flow guide pipe 4 and a lower flow guide pipe 5 are respectively provided on the upper and lower sides of each coating head 3. The upper flow guide pipe 4 and the lower flow guide pipe 5 are both used to control the air flow to swirl along the outer wall of the enameled wire 1. A dust cleaning wire threading seat 6 for cleaning the outer wall of the enameled wire 1 is installed at the bottom of the lower flow guide pipe 5.

[0045] A plurality of guide wheels 21 are evenly distributed on the fixed bracket 2. The main function of the guide wheels 21 is to guide the traveling path of the enameled wire 1 and ensure that the enameled wire 1 maintains a stable direction during transmission. The coating heads 3 are evenly distributed above the guide wheels 21 and are fixedly connected to the fixed bracket 2. A flow guide sleeve 33 is provided inside the coating head 3, and a quantitative perforation 331 is provided at the top of the flow guide sleeve 33. A plurality of support bars 332 are arranged on the inner wall of the quantitative perforation 331 at equal intervals. The support bars 332 not only play a role in positioning the moving path of the enameled wire 1, but also ensure that the enameled wire 1 always rises centrally when passing through the quantitative perforation 331, while avoiding scratching the outer wall of the enameled wire 1. The coating head 3 can cooperate with the lubricant conveying device to evenly apply the lubricant 11 on the enameled wire 1. The expansion adjustment device 7 is arranged beside the coating head 3. The upper air guide pipe 4 and the lower air guide pipe 5 are both connected to the air conveying device, and the air conveying device provides a stable air flow. The dust cleaning and wire threading seat 6 is installed at the bottom of the lower air guide pipe 5. The dust cleaning and wire threading seat 6 can perform a preliminary dust cleaning treatment on the enameled wire 1 to ensure that the surface of the enameled wire 1 is clean and free of impurities before applying the lubricant 11. During the working process, the enameled wire reel is placed on the feeding mechanism, and the enameled wire 1 passes through the guide wheels 21, the dust cleaning and wire threading seat 6, the lower air guide pipe 5, the coating head 3 and the upper air guide pipe 4 in sequence. After the enameled wire 1 is threaded, the feeding mechanism is started to drive the enameled wire 1 to move for winding. When the enameled wire 1 passes through the dust cleaning and wire threading seat 6, its outer wall is subjected to a preliminary dust cleaning treatment. The coating head 3 gathers and conveys the lubricant 11 to the position of the flow guide sleeve 33, so that the enameled wire 1 adheres to the lubricant 11 during the rising process. When the enameled wire 1 passes through the quantitative perforation 331, the support bars 332 ensure that there is a space between the enameled wire 1 and the quantitative perforation 331, so that the lubricant 11 can be quantitatively adhered to the outer wall of the enameled wire 1. If there is excess lubricant 11 when the lubricant 11 on the coating head 3 contacts the enameled wire 1, part of the lubricant 11 will pass through the bottom of the flow guide sleeve 33 and fall along the enameled wire 1 to the lower part of the coating head 3.

[0046] When the enameled wire 1 continues to move through the upper air guide pipe 4, the air flow inside the upper air guide pipe 4 will swirl and blow towards the lubricant 11 on the outer wall of the enameled wire 1. Through the pushing action of the air flow, the lubricant 11 in the excessive area is evenly diffused and coated, so as to ensure that the lubricant 11 on the outer wall of the enameled wire 1 is evenly coated. The lower air guide pipe 5 guides the air flow to assist the lubricant 11 to quickly and evenly adhere to the enameled wire 1 to achieve pre-coating.

[0047] By precisely controlling the coating process of the lubricant 11 and using the air flow to evenly diffuse the lubricant 11, the problem of uneven lubricant 11 in the traditional coating process is effectively solved, the utilization rate of the lubricant 11 is improved, and the production cost is reduced.

[0048] The lubricant conveying device, the air conveying device and the feeding mechanism are all prior arts and will not be elaborated here.

[0049] See Figures 1 to 6 As shown, the application head 3 includes an annular nozzle 31 installed inside. Below the annular nozzle 31, a liquid guide hopper 32 is installed. An installation hole for installing a diversion sleeve 33 is provided at the axial center position of the liquid guide hopper 32. The liquid guide hopper 32 is used to guide the lubricant 11 to converge towards the diversion sleeve 33.

[0050] A plurality of air flow holes 321 are provided on the inner wall of the liquid guide hopper 32. An air flow chamber is further provided between the liquid guide hopper 32 and the application head 3. The air flow holes 321 are communicated with the air flow chamber. A first exhaust pipe 34 is also installed on the liquid guide hopper 32.

[0051] The first exhaust pipe 34 is used to connect to an air filtration device, and the air filtration device is a prior art and will not be elaborated here.

[0052] The installation hole is used to install the diversion sleeve 33. An annular nozzle 31 is installed inside the application head 3, and the annular nozzle 31 is responsible for connecting to a lubricant delivery device. The lubricant delivery device stably delivers the lubricant 11 to the annular nozzle 31, and then the annular nozzle 31 evenly distributes and delivers the lubricant 11 to the liquid guide hopper 32. The liquid guide hopper 32 is used to receive the lubricant 11 from the annular nozzle 31 and evenly guide it to the diversion sleeve 33 installed inside the installation hole.

[0053] When the lubricant 11 is evenly applied to the enameled wire 1, when the air flow conveyed by the upper diversion pipe 4 flows to the liquid guide hopper 32, it will flow into the air flow chamber through a plurality of air flow holes 321, and then be guided to the air filtration device through the first exhaust pipe 34 for purification and filtration to avoid the diffusion of peculiar smell. The diversion sleeve 33 is snap-fitted with the installation hole, which is convenient for disassembly and replacement, so as to be adapted according to enameled wires 1 with different diameters. The flexibility of the device is improved.

[0054] See Figures 3 to 8 As shown, the structures of the upper diversion pipe 4 and the lower diversion pipe 5 are the same. An air inlet pipe 43 for conveying air flow is installed on the upper diversion pipe 4. A pressure regulating valve 45 for controlling air pressure is installed on the air inlet pipe 43. An air flow inner pipe 46 for guiding the air flow to swirl along the outer wall of the enameled wire 1 is further provided inside the upper diversion pipe. A first heating layer is provided on the inner wall of the upper diversion pipe.

[0055] An air pressure sensor 44 for detecting air pressure is also installed on the air inlet pipe 43. A first wire clamping port 41 is provided on the side of the upper diversion pipe. The first wire clamping port 41 provides a convenient installation path for the enameled wire 1. A sealing plate 42 is installed outside the first wire clamping port 41, and the sealing plate 42 is movably snap-fitted with the upper diversion pipe 4.

[0056] The air inlet pipe 43 is used to connect to an air delivery device, and the air delivery device is a prior art and will not be elaborated here.

[0057] When the enameled wire 1 needs to be installed inside the upper flow guide pipe, the staff can directly pass the enameled wire 1 through the first wire clamping port 41, move the enameled wire 1 to the axial center position of the air flow inner pipe 46, and then clamp and fix it to the first wire clamping port 41 through the sealing plate 42 to prevent air leakage and ensure that all the air flow acts on the enameled wire 1 and the attached lubricant 11.

[0058] The intake pipe 43 is connected to the gas transmission equipment and is responsible for introducing stable air flow into the upper flow guide pipe 4. The air pressure sensor 44 monitors the air flow pressure in the intake pipe 43 in real time to ensure that the air flow is maintained within an appropriate range. If the air flow pressure fluctuates abnormally, the pressure regulating valve 45 will automatically adjust to maintain the stability of the air flow. The air flow inner pipe 46 is located inside the upper flow guide pipe 4, and the air flow inner pipe 46 effectively guides the air flow to flow along the enameled wire 1. The first heating layer is arranged on the inner wall of the upper flow guide pipe 4 and is used to adjust the temperature inside the pipe. The appropriate temperature environment helps to maintain the fluidity of the lubricant 11 and ensure the coating effect.

[0059] During the coating process, the enameled wire 1 first passes through the coating head 3, and a fixed amount of lubricant 11 adheres to the outer wall of the enameled wire 1. Subsequently, the enameled wire 1 rises and passes through the air flow inner pipe 46 of the upper flow guide pipe 4. At this time, the air flow introduced by the intake pipe 43 spirally flows along the air flow inner pipe 46 towards the outer wall of the enameled wire 1 and directly acts on the enameled wire 1 and the attached lubricant 11. The blowing effect of the air flow causes the lubricant 11 in excessive areas to quickly flow downward along the enameled wire 1, thereby ensuring the uniform coating of the lubricant 11 on the enameled wire 1. Through precise air flow guidance and temperature control, the upper flow guide pipe 4 effectively enhances the uniform coating effect of the lubricant 11 on the enameled wire 1 and improves the coating quality and the utilization rate of the lubricant 11.

[0060] See Figures 3 to 9 As shown, a plurality of air flow through holes 461 are provided on the inner wall of the air flow inner pipe 46. A plurality of lower conical hoppers 462 are installed at equal intervals inside the air flow inner pipe 46. A central ventilation hole 4621 is provided at the bottom of the lower conical hopper 462, and a plurality of guide plates 4622 for guiding the air flow to vortex flow are provided on the inner wall of the lower conical hopper 462.

[0061] The inner wall of the lower conical hopper 462 is provided with a second wire clamping port 463, and a sealing rubber strip 464 is arranged on the second wire clamping port 463. The inner wall of the air flow inner pipe 46 is configured with a plurality of uniformly distributed air flow through holes 461, and the function of the air flow through holes 461 is to uniformly diffuse the air flow introduced by the air inlet pipe 43. The air flow has to flow uniformly inside the air flow inner pipe 46. A plurality of lower conical hoppers 462 are installed at equal intervals inside the air flow inner pipe 46. The plurality of flow guiding plates 4622 on the inner wall of the lower conical hopper 462 contribute to guiding the air flow to converge spirally at the central ventilation hole 4621, ensuring the aggregation effect of the air flow. This enables the air flow to act more concentratedly on the enameled wire 1, improving the air flow utilization efficiency. At the same time, the central ventilation hole 4621 not only facilitates air circulation but also provides a smooth movement path for the enameled wire 1.

[0062] On the inner wall of the lower conical hopper 462, there is a second wire clamping port 463. The second wire clamping port 463 cooperates with the first wire clamping port 41 to jointly provide a stable and precise installation path for the enameled wire 1. To ensure the smooth diversion of the air flow, a sealing rubber strip 464 is arranged on the second wire clamping port 463. While ensuring that the enameled wire 1 passes through stably, the sealing rubber strip 464 effectively prevents the air flow from directly passing through the lower conical hopper 462, further enhancing the effect of the air flow acting on the enameled wire 1.

[0063] See Figure 3 and Figure 10 As shown in the figure, the dust cleaning wire threading seat 6 includes a sealing bottom plate 61 installed at the bottom of the lower diversion pipe 5. A clamping installation sleeve 64 is also installed at the bottom of the sealing bottom plate 61. A detachable assembly sleeve 65 is installed in the clamping installation sleeve 64, and a dust cleaning layer 651 for cleaning the surface of the enameled wire 1 is arranged inside the assembly sleeve 65.

[0064] A second exhaust pipe 62 is also installed at the bottom of the sealing bottom plate 61. A third wire clamping port 63 is arranged on the side of the sealing bottom plate 61, and a sealing strip 652 for sealing the third wire clamping port 63 is arranged on the side of the assembly sleeve 65.

[0065] The second exhaust pipe 62 is integrated at the bottom of the sealing bottom plate 61. The second exhaust pipe 62 is used to connect an air filtering device to process the passing gas. On the side of the sealing bottom plate 61, a third wire clamping port 63 is designed. This wire clamping port provides an installation path for the enameled wire 1, ensuring that the enameled wire 1 can be accurately positioned at a predetermined position on the sealing bottom plate 61.

[0066] The clamping and installation sleeve 64 for sealing the bottom plate 61 is used to fix the assembly sleeve 65. The assembly sleeve 65 is detachable, and the dust cleaning layer 651 inside the assembly sleeve 65 ensures that the outer surface of the enameled wire 1 reaches the required cleanliness. When the assembly sleeve 65 is installed on the clamping and installation sleeve 64, the internal dust cleaning layer 651 will be in direct contact with the enameled wire 1, and the dust cleaning effect can be achieved when the enameled wire 1 passes through the dust cleaning layer 651. In addition, a sealing strip 652 is provided on the side of the assembly sleeve 65, and the sealing strip 652 can effectively seal the third wire clamping port 63 to prevent the air flow in the lower diversion pipeline 5 from leaking out.

[0067] During the operation, when the lower diversion pipeline 5 conveys gas, the air flow will flow downward and blow towards the sealing bottom plate 61. At this time, the second exhaust pipeline 62 on the sealing bottom plate 61 can guide the air flow into the air filtering device, so as to maintain the working environment.

[0068] See Figures 1 to 4 As shown, the uniform coating device includes an expansion adjustment device 7. There are two activity adjustment frames 72 that are synchronously and actively adjusted on the expansion adjustment device 7, and the two activity adjustment frames 72 are respectively connected to the upper diversion pipeline 4 and the lower diversion pipeline 5.

[0069] The expansion adjustment device 7 includes two limit guide columns 71 installed on the fixed bracket 2. Two activity adjustment frames 72 are slidably installed on the limit guide columns 71. A plurality of synchronous push rods 74 are installed on both sides of the activity adjustment frame 72. There are two connection blocks 73 beside the activity adjustment frame 72, and both connection blocks 73 are connected to the synchronous push rods 74. A bidirectional adjustment screw rod 75 is installed between the two connection blocks 73.

[0070] The bidirectional adjustment screw rod 75 is rotatably connected to the fixed bracket 2 and is driven by a rotation driver 76. The two activity adjustment frames 72 are respectively connected to the corresponding upper diversion pipeline 4 and lower diversion pipeline 5. The two activity adjustment frames 72 are respectively used to connect the upper diversion pipeline 4 and the lower diversion pipeline 5.

[0071] The limit guide columns 71 are firmly installed on the fixed bracket 2, providing a sliding track for the activity adjustment frame 72. The activity adjustment frame 72 is slidably installed along the limit guide columns 71 and can linearly move along a predetermined direction. A plurality of synchronous push rods 74 are installed on both sides of the activity adjustment frame 72, and the push rods 74 are connected to the connection blocks 73, ensuring the synchronous movement between the activity adjustment frame 72 and the connection blocks 73.

[0072] The bidirectional adjustment screw rod 75 is installed between the two connection blocks 73 and is rotatably connected to the fixed bracket 2. The bidirectional adjustment screw rod 75 is driven by a rotation driver 76. When the driver is started, the bidirectional adjustment screw rod 75 will rotate, driving the two connection blocks 73 to move in opposite or relative directions along the axis direction of the bidirectional adjustment screw rod 75.

[0073] In actual operation, when it is necessary to install the enameled wire 1 onto the lower diversion pipe 5, the coating head 3, and the upper diversion pipe 4, the staff will start the rotary drive 76 to drive the bidirectional adjusting screw rod 75 to rotate. As the bidirectional adjusting screw rod 75 rotates, the two connecting blocks 73 will move synchronously along the axial direction of the bidirectional adjusting screw rod 75, and then drive the movable adjusting frame 72 to move linearly through the synchronous push rod 74. The movement of the movable adjusting frame 72 will drive the lower diversion pipe 5 and the upper diversion pipe 4 to separate or approach synchronously, thereby adjusting the positions of the upper diversion pipe 4 and the lower diversion pipe 5. The expansion adjusting device 7 can conveniently adjust the positions of the upper diversion pipe 4 and the lower diversion pipe 5, provide the necessary space for the installation and coating process of the enameled wire 1, and effectively facilitate the staff to draw and route the wire.

[0074] See Figure 3 , Figure 11 and Figure 12 As shown in

[0075] The inner wall of the anti-drip liquid storage bucket 81 is provided with a second heating layer. The top of the anti-drip liquid storage bucket 81 is provided with a material receiving cover 811. The material receiving cover 811 is in a funnel shape. The bottom of the material receiving cover 811 is provided with a filter layer 812. A liquid level sensor is installed inside the anti-drip liquid storage bucket 81.

[0076] During the coating process of the enameled wire 1, some excess lubricant 11 will seep out from the dust cleaning and wire threading seat 6. The seeped lubricant 11 then falls into the material receiving cover 811 located at the top of the anti-drip liquid storage bucket 81. The filter layer 812 of the material receiving cover 811 can effectively filter out the impurities in the lubricant 11 to ensure the purity of the lubricant 11 entering the anti-drip liquid storage bucket 81. The filtered lubricant 11 then falls into the anti-drip liquid storage bucket 81. In order to maintain the appropriate temperature of the lubricant 11 during the coating process, the inner wall of the anti-drip liquid storage bucket 81 is provided with a second heating layer. This ensures that the lubricant 11 maintains a stable temperature during storage and transportation, thus ensuring the consistency of the coating effect. The liquid level sensor is installed inside the anti-drip liquid storage bucket 81 and is used to monitor the storage situation of the lubricant 11 in the bucket in real time. When the storage amount of the lubricant 11 is insufficient, the liquid level sensor will send a signal to prompt the operator to replenish the lubricant 11 in time. When it is necessary to transport the lubricant 11, the lubricant 11 can be quantitatively sucked through the delivery pump in cooperation with the delivery pipe 82, and the lubricant 11 is transported to the annular spray head 31 through the delivery pipe 82 for coating use. The delivery pump is a prior art and will not be elaborated here.

[0077] SeeFigure 12 and Figure 13 As shown in Figure 13 , the uniform coating device includes a plurality of one-way push pistons 84 distributed inside each anti-drip liquid storage barrel 81. The one-way push piston 84 includes a flow plate 842. A flow hole 8421 is provided at the axial center position of the flow plate 842. A floating film 843 is provided at the bottom of the flow plate 842. The uniform coating device further includes a one-way valve 83 installed on the delivery pipe 82.

[0078] The function of the one-way valve 83 is to effectively avoid the backflow phenomenon of the lubricant 11 during the transportation process and ensure the one-way and stable transportation of the lubricant 11. A flow plate 842 is installed on the one-way push piston 84. A flow hole 8421 is provided at the axial center position of the flow plate 842, which is used to allow the lubricant 11 to pass through when the piston moves. A floating film 843 is provided at the bottom of the flow plate 842. The floating film 843 has elasticity and sealing performance. The floating film 843 can fit with the edge of the flow hole 8421 to achieve a sealing effect.

[0079] Under the action of the cyclic push device 85, the one-way push piston 84 reciprocates up and down inside the anti-drip liquid storage barrel 81. When the one-way push piston 84 moves upward, the lubricant 11 inside the anti-drip liquid storage barrel 81 flows freely through the flow hole 8421 of the flow plate 842 under the action of gravity. At this time, the floating film 843 is not under pressure and remains in a non-fitting state with the flow hole 8421, allowing the lubricant 11 to pass through smoothly.

[0080] When the one-way push piston 84 moves downward, the floating film 843 is subjected to the extrusion pressure of the downward movement of the piston. The floating film 843 will elastically deform and closely fit with the edge of the flow hole 8421 of the flow plate 842 to form an effective sealing structure, thereby blocking the flow hole 8421. At this time, the lubricant 11 can no longer flow back through the flow hole 8421 to the upper part of the anti-drip liquid storage barrel 81, ensuring the one-way flow of the lubricant 11. When the one-way push piston 84 continues to compress downward, the pressure at the bottom increases, pushing the lubricant 11 at the bottom of the anti-drip liquid storage barrel 81 to move towards the delivery pipe 82. Since a one-way valve 83 is provided on the delivery pipe 82, the lubricant 11 enters the delivery pipe 82 through the one-way valve 83 under the action of pressure and continues to be transported towards the annular spray head 31. The one-way valve 83 effectively prevents the backflow of the lubricant 11 during the transportation process and ensures the stable transportation of the lubricant 11.

[0081] See Figure 12 and Figure 14 As shown in Figure 12 and Figure 14 , the uniform coating device includes a cyclic push device 85 that drives the one-way push pistons 84 to move up and down. A plurality of vertically movable push shafts 8522 are provided on the cyclic push device 85. The plurality of push shafts 8522 pass through the anti-drip liquid storage barrel 81 and are connected to the one-way push pistons 84.

[0082] The cyclic pressing device 85 includes a cyclic guiding sleeve 851 installed at the bottom of the drip-proof storage barrel 81. Inside the cyclic guiding sleeve 851, there is a cyclic groove 8511. A rotating column 852 is installed in the cyclic guiding sleeve 851. A sliding ball 8521 is installed on the rotating column 852. The sliding ball 8521 is slidably connected to the cyclic groove 8511. The top of the rotating column 852 is rotatably connected to a pressing shaft 8522. The bottom of the rotating column 852 is provided with a limiting telescopic shaft 8523. A conical driving wheel 853 is also installed on the cyclic guiding sleeve 851. The conical driving wheel 853 is slidably connected to the limiting telescopic shaft 8523.

[0083] Inside the cyclic guiding sleeve 851, there is a cyclic groove 8511, which provides a path for the movement of the sliding ball 8521. The rotating column 852 is installed inside the cyclic guiding sleeve 851. A sliding ball 8521 is installed on the rotating column 852. The sliding ball 8521 is slidably connected to the cyclic groove 8511, ensuring that the rotating column 852 can rotate smoothly inside the cyclic guiding sleeve 851 and generate a reciprocating telescopic motion. The top of the rotating column 852 is connected to a pressing shaft 8522, and the pressing shaft 8522 is connected to the one-way pressing piston 84. Therefore, the rotation and telescoping of the rotating column 852 will directly drive the one-way pressing piston 84 to perform a reciprocating motion inside the drip-proof storage barrel 81. The bottom of the rotating column 852 is provided with a limiting telescopic shaft 8523. The limiting telescopic shaft 8523 is slidably connected to the conical driving wheel 853 on the cyclic guiding sleeve 851. When the conical driving wheel 853 rotates, it can drive the limiting telescopic shaft 8523 to rotate synchronously.

[0084] When it is necessary to drive the one-way pressing piston 84 to perform a reciprocating motion, the driving device 854 is started and drives the conical driving wheel 853 to rotate. The rotation of the conical driving wheel 853 is transmitted to the rotating column 852 through the limiting telescopic shaft 8523, causing the rotating column 852 to start rotating. As the rotating column 852 rotates, the sliding ball 8521 slides inside the cyclic groove 8511. Due to the guidance of the cyclic groove 8511, the movement of the sliding ball 8521 will guide the rotating column 852 to perform a reciprocating telescopic motion. The reciprocating telescopic motion of the rotating column 852 is transmitted to the one-way pressing piston 84 through the pressing shaft 8522, thereby driving the one-way pressing piston 84 to perform a reciprocating motion inside the drip-proof storage barrel 81. This motion process effectively pushes the lubricant 11 from the bottom of the drip-proof storage barrel 81 to the end connected to the delivery pipe 82, ensuring the stable delivery of the lubricant 11.

[0085] In summary, the cyclic pressing device 85 realizes the reciprocating motion of the one-way pressing piston 84 inside the drip-proof storage barrel 81 through the rotation of the conical driving wheel 853, the transmission of the limiting telescopic shaft 8523, the rotation and telescoping of the rotating column 852, and the transmission of the pressing shaft 8522, thereby ensuring the stable delivery of the lubricant 11 and the consistency of the coating effect.

[0086] An enamelled wire coating method for improving the utilization rate of lubricant, comprising the following steps:

[0087] S1. Pass the enamelled wire 1 through the guide wheel 21, the dust cleaning threading seat 6, the lower diversion pipeline 5, the coating head 3 and the upper diversion pipeline 4;

[0088] S2. Start the feeding mechanism to drive the enamelled wire 1 to move, and at the same time, perform preliminary dust cleaning treatment through the dust cleaning threading seat 6;

[0089] S3. The coating head 3 aggregates and conveys the lubricant 11 to the position of the diversion sleeve 33, so that the enamelled wire 1 adheres to the lubricant 11 during the rising process. The enamelled wire 1 passes through the quantitative perforation 331 of the coating head 3, and the support bar 332 cooperates with the quantitative perforation 331 to ensure the quantitative adhesion of the lubricant 11;

[0090] S4. The air flow inside the upper diversion pipeline 4 blows towards the outer wall of the enamelled wire 1 to uniformly diffuse and coat the lubricant 11;

[0091] S5. The lower diversion pipeline 5 guides the air flow to assist the rapid and uniform adhesion of the lubricant 11 to achieve pre-coating.

[0092] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. An enameled wire coating device for improving lubricant utilization, comprising a uniform coating device installed beside a discharge mechanism, characterized in that: The uniform coating device comprises a fixed bracket, on which a plurality of guide wheels for guiding the enameled wire are arranged, and a plurality of coating heads are also installed on the fixed bracket, a guide sleeve for coating lubricant is arranged inside the coating head, a quantitative perforation for scraping off excess lubricant is arranged on the top of the guide sleeve, a plurality of support bars distributed at equal intervals are arranged on the inner wall of the quantitative perforation, and the support bars are used to support and guide the enameled wire to pass through the quantitative perforation in the center, and an upper guide pipe and a lower guide pipe are arranged on the upper and lower sides of each coating head, respectively, and the upper guide pipe and the lower guide pipe are used to control the vortex flow of airflow along the outer wall of the enameled wire, and a dust cleaning threading seat for cleaning the outer wall of the enameled wire is installed at the bottom of the lower guide pipe, and the coating head comprises an annular nozzle installed inside, and a liquid guide flow hopper is installed below the annular nozzle, and a plurality of air flow holes are arranged on the inner wall of the liquid guide flow hopper, and an air flow chamber is also arranged between the liquid guide flow hopper and the coating head, and the air flow hole is connected with the air flow chamber; The uniform coating device includes a circulating conveying device, which includes a plurality of anti-drip liquid storage barrels installed below the dust cleaning threading seat; The uniform coating device also includes a plurality of one-way pushing pistons distributed inside each anti-drip liquid storage barrel and a circulating pushing device for driving the plurality of one-way pushing pistons to move up and down, and the circulating pushing device is provided with a plurality of pushing shafts that move up and down; The circulation pushing device includes a circulation guide sleeve installed at the bottom of the anti-drip liquid storage barrel, a circulation groove is arranged inside the circulation guide sleeve, a rotating column is installed in the circulation guide sleeve, a sliding ball is installed on the rotating column, the sliding ball is slidably connected to the circulation groove, the top of the rotating column is rotatably connected to the pushing shaft, a limit telescopic shaft is arranged at the bottom of the rotating column, a conical driving wheel is also installed on the circulation guide sleeve, and the conical driving wheel is slidably connected to the limit telescopic shaft.

2. The enameled wire coating device for improving lubricant utilization according to claim 1, characterized in that: A mounting hole for mounting a guide sleeve is arranged at the axial center position of the liquid guide flow bucket, and the liquid guide flow bucket is used to guide the lubricant to converge toward the guide sleeve.

3. The enameled wire coating device for improving lubricant utilization rate according to claim 1, characterized in that: The structures of the upper guide pipe and the lower guide pipe are the same. The upper guide pipe is equipped with an air intake pipe for conveying airflow, and a pressure regulating valve for controlling air pressure is installed on the air intake pipe. The interior of the upper guide pipe is also provided with an airflow inner tube for guiding the airflow to flow in a vortex along the outer wall of the enameled wire, and the inner wall of the upper guide pipe is provided with a first heating layer.

4. The enameled wire coating device for improving lubricant utilization rate according to claim 3, characterized in that: The inner wall of the air flow inner tube is provided with a plurality of air flow holes, a plurality of lower conical buckets are installed at equal intervals inside the air flow inner tube, a central air vent is provided at the bottom of the lower conical bucket, and a plurality of guide plates for guiding the vortex flow of the air flow are provided on the inner wall of the lower conical bucket.

5. The enameled wire coating device for improving lubricant utilization rate according to claim 1, characterized in that: The dust cleaning threading seat includes a blocking bottom plate installed at the bottom of the lower guide pipe. A snap-on mounting sleeve is also installed at the bottom of the blocking bottom plate. A detachable assembly sleeve is installed in the snap-on mounting sleeve. A dust cleaning layer for cleaning the surface of the enameled wire is provided inside the assembly sleeve.

6. The enameled wire coating device for improving lubricant utilization according to claim 1, characterized in that: The uniform coating device comprises an expansion regulating device, on which two synchronously movable regulating frames are arranged, and the two movable regulating frames are respectively connected with the upper guide pipe and the lower guide pipe.

7. The enameled wire coating device for improving lubricant utilization rate according to claim 1, characterized in that: A delivery pipe is provided on the side of each anti-drip liquid storage barrel, and one end of the delivery pipe away from the anti-drip liquid storage barrel is connected to the coating head.

8. The enameled wire coating device for improving lubricant utilization rate according to claim 7, characterized in that: The one-way pushing piston comprises a circulation plate, a circulation hole is arranged at the axial center of the circulation plate, a floating membrane is arranged at the bottom of the circulation plate, and the uniform coating device also comprises a one-way valve installed on the delivery pipe.

9. The enameled wire coating device for improving lubricant utilization rate according to claim 8, characterized in that: A plurality of pushing shafts pass through the anti-drip liquid storage barrel and are connected with the one-way pushing piston.

10. A method for coating an enameled wire for improving lubricant utilization, using an enameled wire coating device for improving lubricant utilization as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Pass the enameled wire through the guide wheel, the cleaning threading seat, the lower guide pipe, the coating head and the upper guide pipe; S2, start the feeding mechanism to drive the enameled wire to move, and at the same time, perform preliminary cleaning through the cleaning threading seat; S3, the coating head gathers and transports the lubricant to the guide sleeve position, so that the enameled wire adheres to the lubricant during the rising process, and the enameled wire passes through the quantitative perforations of the coating head, and the support bar cooperates with the quantitative perforations to ensure the quantitative adhesion of the lubricant; S4, the air flow inside the upper guide pipe is blown to the outer wall of the enameled wire, so that the lubricant is evenly spread and coated; S5. The lower guide duct guides the airflow, assists the lubricant to adhere quickly and evenly, and realizes pre-coating.

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