Enameled wire coating equipment and method for improving utilization rate of lubricant

Abstract

The invention discloses enameled wire coating equipment and method for improving the utilization rate of a lubricant, the enameled wire coating equipment comprises a uniform coating device mounted beside a discharging mechanism, the uniform coating device comprises a fixed bracket, a plurality of guide wheels for guiding an enameled wire are arranged on the fixed bracket, and a plurality of coating heads are further mounted on the fixed bracket; a flow guide sleeve coated with lubricant is arranged in the smearing head, a quantitative through hole for scraping redundant lubricant is formed in the top of the flow guide sleeve, a plurality of supporting strips distributed at equal intervals are arranged on the inner wall of the quantitative through hole, and the supporting strips are used for supporting and guiding the enameled wire to penetrate through the quantitative through hole in the middle. An upper flow guide pipeline and a lower flow guide pipeline are arranged on the upper side and the lower side of each smearing head respectively and used for controlling airflow to flow along the outer wall of the enameled wire in a vortex mode, and an ash removal threading base for cleaning the outer wall of the enameled wire is installed at the bottom of the lower flow guide pipeline.

Description

Technical Field

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

[0002] In the process of manufacturing enameled wire, generally multiple processing steps are required, and coating the enameled wire with liquid lubricant is one of the processes. Coating with liquid lubricant can make the enameled wire convenient for subsequent processing and transportation, and can also reduce friction.

[0003] In the prior art, for example, a Chinese patent application (publication number CN114082584A) discloses a batch coating device for lubricant on the surface of enameled wires, the purpose of which is to design a batch coating device for lubricant on the surface of enameled wires that can simultaneously coat six rolls of enameled wires with liquid lubricant to improve work efficiency and make the process less time-consuming. Specifically, the above-mentioned batch coating device for lubricant on the surface of enameled wires includes a base, a support frame, and a slotted feed pipe, etc. The support frame is fixedly connected to the middle of the top rear side of the base, and the slotted feed pipe is fixedly connected to the bottom end of the upper front side of the support frame. The coating device puts six rolls of enameled wires on the discharge mechanism, pulls the discharge mechanism to straighten the enameled wires, starts the electric heating spiral plate to scrape off the paste lubricant for heating and melting into liquid lubricant, and then starts the driving mechanism. The driving mechanism drives the cylinder to rotate forward, so that the felt rotates forward to coat the liquid lubricant on the six rolls of enameled wires. In this way, the six rolls of enameled wires are coated with liquid lubricant at the same time, with high work efficiency and less time spent.

[0004] Although the coating device disclosed in the above-mentioned prior art can achieve batch coating through direct contact between the felt and the enameled wire. However, this traditional method has several technical defects, which seriously affect the coating effect and the efficiency of lubricant use. Since the felt is in direct contact with 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. As time goes by, the dirt on the felt gradually accumulates, which not only aggravates the wear of the felt, but also seriously affects the uniform coating of the lubricant. The presence of dirt reduces the quality of the coating layer, which may cause the performance of the enameled wire to deteriorate during subsequent processing or use.

[0005] In addition, when using felt for coating, it is difficult to accurately control the amount of lubricant adsorbed. The adsorption capacity of different areas of the felt may vary, resulting in insufficient lubricant adsorption in some areas and poor coating effect; while excessive adsorption in some areas will cause waste of lubricant. This uneven coating not only increases production costs, but may also have an adverse effect 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 circulation plate, a circulation hole is provided at the axial position of the circulation plate, a floating membrane is provided at the bottom of the circulation plate, and the uniform coating device also includes a one-way valve installed on the delivery pipe.

[0015] Preferably, the uniform coating device includes a circulating pushing device that drives multiple one-way pushing pistons to move up and down, and the circulating pushing device is provided with multiple pushing shafts that can move up and down, and the multiple pushing shafts pass through the anti-drip liquid storage barrel and are connected to the one-way pushing pistons.

[0016] A method for coating an enameled wire for improving lubricant utilization rate comprises the following steps: 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.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes precise control of lubricant delivery and coating process through the designed coating head structure, the internal guide sleeve and quantitative perforation. The quantitative perforation and the support strips 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, thereby significantly improving the utilization rate of the lubricant. At the same time, the stable airflow in the upper and lower guide pipes 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.

[0018] 2. The design of the cleaning threading seat in the present invention can perform preliminary cleaning on the enameled wire before applying the lubricant, effectively removing 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 enameled wire surface, thereby improving the quality of the coating layer and the overall performance of the enameled wire. This is important for ensuring the stability and reliability of the enameled wire in subsequent processing or use.

[0019] 3. The present invention flexibly adjusts the positions of the upper guide pipe and the lower guide pipe through the expansion adjustment device, so that the equipment can adapt to the coating requirements of enameled wires of different diameters. This design not only enhances the adaptability of the equipment, but also improves the convenience of operation. In addition, the guide wheels evenly spaced on the fixed bracket ensure the stability of the enameled wire during transmission, further improving the coating effect. Overall, the design of the equipment takes into account the actual needs of production, making the adjustment, maintenance and operation processes simpler and more efficient, reducing production costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of an enameled wire coating device for improving lubricant utilization rate of the present invention.

[0021] Figure 2 The invention is a front view of an enameled wire coating device for improving lubricant utilization.

[0022] Figure 3 yes Figure 2 Plane section view of section AA.

[0023] Figure 4 It is a three-dimensional schematic diagram of a partial structure of an enameled wire coating device for improving lubricant utilization rate of the present invention.

[0024] Figure 5 The present invention is a front view of a coating head in an enameled wire coating device for improving lubricant utilization.

[0025] Figure 6 yes Figure 5 Plane cutaway stereogram of section BB.

[0026] Figure 7 The present invention is a front view of an upper flow guide pipe in an enameled wire coating device for improving lubricant utilization.

[0027] Figure 8 yes Figure 7 Plane cutaway stereogram of section CC.

[0028] Fig. 9 The invention is a three-dimensional schematic diagram of a lower conical bucket in an enameled wire coating device for improving lubricant utilization.

[0029] Fig.10 The invention discloses a stereoscopic schematic diagram of a lower flow guide pipe and a dust cleaning threading seat in an enameled wire coating device for improving lubricant utilization.

[0030] Fig.11 The present invention is a front view of a circulating conveying device in an enameled wire coating device for improving lubricant utilization.

[0031] Fig.12 yes Fig.11 Plane cutaway perspective view of the DD section.

[0032] Fig.13 yes Fig.12 A partial enlarged view of point E in the middle.

[0033] Fig.14 yes Fig.12 A partial enlarged view of point F in the middle.

[0034] Fig.15 The present invention is a schematic diagram of the working state of the air flow inside the upper guide pipe of an enameled wire coating device for improving the utilization rate of lubricant.

[0035] The numbers in the figure are: 1. Enameled wire; 11. Lubricant; 2. Fixed bracket; 21. Guide wheel; 3. Applicator head; 31. Annular nozzle; 32. Liquid flow guide bucket; 321. Air flow hole; 33. Guide sleeve; 331. Quantitative perforation; 332. Support bar; 34. First exhaust duct; 4. Upper guide duct; 41. First clamping port; 42. Blocking plate; 43. Inlet duct; 44. Air pressure sensor; 45. Pressure regulating valve; 46. Air flow inner tube; 461. Air flow hole; 462. Lower conical bucket; 4621. Centered vent hole; 4622. Guide plate; 464. Blocking strip; 463. Second clamping port; 5. Lower guide duct; 6. Cleaning threading seat; 61. Blocking bottom plate; 62. Second exhaust duct; 63. Third clamping port; 64. Snap-on installation Installation sleeve; 65, assembly sleeve; 651, dust cleaning layer; 652, sealing strip; 7, expansion adjustment device; 71, limit guide column; 72, movable adjustment frame; 73, connecting block; 74, push rod; 75, two-way adjustment screw; 76, rotary drive; 8, circulation conveying device; 81, anti-drip liquid storage barrel; 811, material receiving cover; 812, filter layer; 82, conveying pipe; 83, one-way valve; 84, one-way pushing piston; 842, circulation plate; 8421, circulation hole; 843, floating membrane; 85, circulation pushing device; 851, circulation guide sleeve; 8511, circulation groove; 852, rotating column; 8521, sliding ball; 8522, pushing shaft; 8523, limit telescopic shaft; 853, conical driving wheel; 854, driving device. DETAILED DESCRIPTION

[0036] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] See also Figures 1 to 15As shown, an enameled wire coating device for improving lubricant utilization rate includes a uniform coating device installed beside a discharging 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 guide sleeve 33 for coating lubricant 11 is provided inside the coating head 3, a quantitative perforation 331 for scraping off excess lubricant 11 is provided on the top of the guide sleeve 33, a plurality of support bars 332 distributed at equal intervals are provided on the inner wall of the quantitative perforation 331, 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 guide pipe 4 and a lower guide pipe 5 are respectively provided on the upper and lower sides of each coating head 3, the upper guide pipe 4 and the lower guide pipe 5 are both used to control the vortex flow of the airflow along the outer wall of the enameled wire 1, and a dust cleaning threading seat 6 for cleaning the outer wall of the enameled wire 1 is installed at the bottom of the lower guide pipe 5.

[0038] A plurality of guide wheels 21 are evenly spaced on the fixed bracket 2. The main function of the guide wheel 21 is to guide the travel path of the enameled wire 1 and ensure that the enameled wire 1 maintains a stable direction during the transmission process. The coating head 3 is evenly distributed above the guide wheel 21 and is fixedly connected to the fixed bracket 2. A guide sleeve 33 is provided inside the coating head 3, and a quantitative perforation 331 is provided on the top of the guide sleeve 33. The inner wall of the quantitative perforation 331 is arranged with a plurality of support bars 332 distributed at equal intervals. The support bars 332 not only play the role of positioning the moving path of the enameled wire 1, but also ensure that the enameled wire 1 always maintains a concentrated rise when passing through the quantitative perforation 331, while avoiding scratches on the outer wall of the enameled wire 1. The coating head 3 can cooperate with the lubricant conveying equipment to evenly apply the lubricant 11 on the enameled wire 1. The expansion adjustment device 7 is arranged on the side of the coating head 3, and the upper guide pipe 4 and the lower guide pipe 5 are both connected to the gas transmission equipment, and the gas transmission equipment provides a stable airflow. The cleaning threading seat 6 is installed at the bottom of the lower guide pipe 5. The cleaning threading seat 6 can perform preliminary cleaning 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 1 is rolled and placed on the unloading mechanism, and the enameled wire 1 passes through the guide wheel 21, the cleaning threading seat 6, the lower guide pipe 5, the coating head 3 and the upper guide pipe 4 in sequence. After the enameled wire 1 is inserted, the unloading mechanism is started to drive the enameled wire 1 to reel and move. When the enameled wire 1 passes through the cleaning threading seat 6, its outer wall is preliminarily cleaned. The coating head 3 gathers the lubricant 11 and transports it to the 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 bar 332 ensures that there is space between the enameled wire 1 and the quantitative perforation 331, so that the lubricant 11 can be quantitatively attached to the outer wall of the enameled wire 1. If the lubricant 11 on the coating head 3 is in contact with the enameled wire 1 and excess lubricant 11 is generated, part of the lubricant 11 will pass through the bottom of the guide sleeve 33 and fall down along the enameled wire 1 to below the coating head 3 .

[0039] When the enameled wire 1 continues to move through the upper guide pipe 4, the airflow inside the upper guide pipe 4 will swirl and blow toward the lubricant 11 on the outer wall of the enameled wire 1. Through the pushing effect of the airflow, the lubricant 11 in the excessive area is evenly spread and coated, thereby ensuring that the lubricant 11 on the outer wall of the enameled wire 1 is evenly coated. The lower guide pipe 5 guides the airflow to assist the lubricant 11 to quickly and evenly adhere to the enameled wire 1, thereby achieving pre-coating.

[0040] By precisely controlling the coating process of the lubricant 11 and using airflow 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.

[0041] The lubricant conveying equipment, gas conveying equipment and discharge mechanism are all prior art and will not be described in detail here.

[0042] See also Figures 1 to 6 As shown, the coating head 3 includes an annular nozzle 31 installed inside, a liquid guide flow hopper 32 is installed below the annular nozzle 31, and a mounting hole for mounting a guide sleeve 33 is provided at the axial position of the liquid guide flow hopper 32. The liquid guide flow hopper 32 is used to guide the lubricant 11 to converge toward the guide sleeve 33.

[0043] A plurality of airflow holes 321 are provided on the inner wall of the liquid guide funnel 32. An airflow chamber is also provided between the liquid guide funnel 32 and the coating head 3, and the airflow holes 321 are connected to the airflow chamber. A first exhaust pipe 34 is also installed on the liquid guide funnel 32.

[0044] The first exhaust pipe 34 is used to connect to an air filter device, and the air filter device is prior art and will not be described in detail here.

[0045] The mounting hole is used to install the guide sleeve 33. An annular nozzle 31 is installed inside the coating head 3. The annular nozzle 31 is responsible for connecting the 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 the lubricant 11 and delivers it 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 guide sleeve 33 installed inside the mounting hole.

[0046] When the lubricant 11 is evenly applied to the enameled wire 1, the airflow transported by the upper guide pipe 4 flows into the airflow chamber through the plurality of airflow holes 321 when it flows to the liquid guide funnel 32, and then is guided to the air filter device through the first exhaust pipe 34 for purification and filtration to prevent the spread of odor. The guide sleeve 33 is snap-fitted to the mounting hole, which is easy to disassemble and replace, so as to adapt to the enameled wire 1 with different diameters. The flexibility of the equipment is improved.

[0047] See also Figures 3 to 8As shown, the upper guide pipe 4 and the lower guide pipe 5 have the same structure. The upper guide pipe 4 is equipped with an air intake pipe 43 for conveying air flow, and the air intake pipe 43 is equipped with a pressure regulating valve 45 for controlling the air pressure. The interior of the upper guide pipe 4 is also provided with an air flow inner tube 46 for guiding the air flow to swirl along the outer wall of the enameled wire 1, and the inner wall of the upper guide pipe is provided with a first heating layer.

[0048] An air pressure sensor 44 for detecting air pressure is also installed on the air intake pipe 43. A first wire clamping port 41 is provided on the side of the upper guide pipe, and the first wire clamping port 41 provides a convenient installation path for the enameled wire 1. A blocking plate 42 is installed on the outer side of the first wire clamping port 41, and the blocking plate 42 is movably connected to the upper guide pipe 4.

[0049] The air inlet pipe 43 is used to connect to the gas transmission equipment, and the gas transmission equipment is prior art and will not be described in detail here.

[0050] When the enameled wire 1 needs to be installed inside the upper guide tube, the staff can directly pass the enameled wire 1 through the first wire clamping port 41 to move the enameled wire 1 to the axial position of the airflow inner tube 46, and then fix it to the first wire clamping port 41 through the sealing plate 42 to prevent the airflow from leaking and ensure that the airflow acts entirely on the enameled wire 1 and the lubricant 11 attached to it.

[0051] The air intake pipe 43 is connected to the gas transmission equipment and is responsible for introducing a stable airflow into the upper guide pipe 4. The air pressure sensor 44 monitors the airflow pressure in the air intake pipe 43 in real time to ensure that the airflow is maintained within an appropriate range. If the airflow pressure fluctuates abnormally, the pressure regulating valve 45 will automatically adjust to maintain the stability of the airflow. The airflow inner tube 46 is located inside the upper guide pipe 4, and the airflow inner tube 46 effectively guides the airflow to flow along the enameled wire 1. The first heating layer is arranged on the inner wall of the upper guide pipe 4 to adjust the temperature inside the pipe. A suitable temperature environment helps to maintain the fluidity of the lubricant 11 and ensure the coating effect.

[0052] During the coating process, the enameled wire 1 first passes through the coating head 3, and a certain amount of lubricant 11 is attached to the outer wall of the enameled wire 1. Subsequently, the enameled wire 1 rises and passes through the airflow inner tube 46 of the upper guide duct 4. At this time, the airflow introduced by the air inlet duct 43 flows spirally along the airflow inner tube 46 toward the outer wall of the enameled wire 1, directly acting on the enameled wire 1 and the lubricant 11 attached thereto. The blowing effect of the airflow causes the lubricant 11 in the excessive area to flow rapidly downward along the enameled wire 1, thereby ensuring uniform coating of the lubricant 11 on the enameled wire 1. The upper guide duct 4 effectively enhances the uniform coating effect of the lubricant 11 on the enameled wire 1 through precise airflow guidance and temperature control, thereby improving the coating quality and the utilization rate of the lubricant 11.

[0053] See also Figures 3 to 9As shown, the inner wall of the airflow inner tube 46 is provided with a plurality of air flow holes 461, and a plurality of lower conical buckets 462 are installed at equal intervals inside the airflow inner tube 46. A central air vent 4621 is provided at the bottom of the lower conical bucket 462, and a plurality of guide plates 4622 for guiding the vortex flow of the airflow are provided on the inner wall of the lower conical bucket 462.

[0054] The inner wall of the lower conical bucket 462 is provided with a second wire clamping port 463, and a sealing rubber strip 464 is provided on the second wire clamping port 463. The inner wall of the airflow inner tube 46 is provided with a plurality of evenly distributed airflow holes 461, and the function of the airflow holes 461 is to evenly diffuse the airflow introduced by the air intake duct 43. The airflow must be evenly distributed and flow inside the airflow inner tube 46. A plurality of lower conical buckets 462 are installed at equal intervals inside the airflow inner tube 46. The plurality of guide plates 4622 on the inner wall of the lower conical bucket 462 help guide the airflow spiral to converge at the central vent 4621, ensuring the gathering effect of the airflow. This enables the airflow to act more concentratedly on the enameled wire 1, thereby improving the airflow utilization efficiency. At the same time, the central vent 4621 not only facilitates air circulation, but also provides a smooth moving path for the enameled wire 1.

[0055] A second wire clamping opening 463 is provided on the inner wall of the lower conical bucket 462. The second wire clamping opening 463 cooperates with the first wire clamping opening 41 to provide a stable and accurate installation path for the enameled wire 1. To ensure smooth airflow guidance, a sealing rubber strip 464 is provided on the second wire clamping opening 463. The sealing rubber strip 464 effectively prevents the airflow from directly passing through the lower conical bucket 462 while ensuring the stable passage of the enameled wire 1, further improving the effect of the airflow on the enameled wire 1.

[0056] See also Figure 3 and Fig.10 As shown, the cleaning threading seat 6 includes a sealing bottom plate 61 installed at the bottom of the lower guide pipe 5, and a snap-on mounting sleeve 64 is also installed at the bottom of the sealing bottom plate 61. A detachable assembling sleeve 65 is installed in the snap-on mounting sleeve 64, and a cleaning layer 651 for cleaning the surface of the enameled wire 1 is provided inside the assembling sleeve 65.

[0057] A second exhaust duct 62 is also installed at the bottom of the blocking bottom plate 61 , a third wire clamping opening 63 is provided on the side of the blocking bottom plate 61 , and a blocking strip 652 for blocking the third wire clamping opening 63 is provided on the side of the assembling sleeve 65 .

[0058] The bottom of the blocking bottom plate 61 is integrated with a second exhaust duct 62, which is used to connect an air filter device to process the passing gas. A third wire clamping port 63 is designed on the side of the blocking bottom plate 61, which provides an installation path for the enameled wire 1, ensuring that the enameled wire 1 can be accurately positioned at a predetermined position of the blocking bottom plate 61.

[0059] The clamping installation sleeve 64 on the sealing 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 installation sleeve 64, the internal dust cleaning layer 651 will directly contact 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 also provided on the side of the assembly sleeve 65, and the sealing strip 652 can effectively close the third clamping port 63 to prevent the airflow in the lower guide duct 5 from leaking out.

[0060] During operation, when the lower guide pipe 5 delivers gas, the airflow will flow downward and blow toward the blocking bottom plate 61. At this time, the second exhaust pipe 62 on the blocking bottom plate 61 can guide the airflow into the air filter device, thereby maintaining the working environment.

[0061] See also Figures 1 to 4 As shown, the uniform coating device includes an expansion adjustment device 7, on which two synchronously movable adjustment frames 72 are provided, and the two movable adjustment frames 72 are connected to the upper guide pipe 4 and the lower guide pipe 5 respectively.

[0062] The expansion adjustment device 7 includes two limiting guide columns 71 installed on the fixed bracket 2, and two movable adjustment frames 72 are slidably installed on the limiting guide columns 71. Multiple synchronous push rods 74 are installed on both sides of the movable adjustment frame 72. Two connecting blocks 73 are provided on the side of the movable adjustment frame 72. The two connecting blocks 73 are connected to the synchronous push rods 74, and a bidirectional adjustment screw 75 is installed between the two connecting blocks 73.

[0063] The two-way adjustment screw rod 75 is rotatably connected to the fixed bracket 2, and the two-way adjustment screw rod 75 is driven by a rotary driver 76. The two movable adjustment racks 72 are respectively connected to the corresponding upper guide pipe 4 and lower guide pipe 5. The two movable adjustment racks 72 are used to connect the upper guide pipe 4 and the lower guide pipe 5 respectively.

[0064] The limiting guide post 71 is firmly mounted on the fixed bracket 2, providing a sliding track for the movable adjustment frame 72. The movable adjustment frame 72 is slidably mounted along the limiting guide post 71, and can move linearly along a predetermined direction. Synchronous push rods 74 are installed on both sides of the movable adjustment frame 72, and the push rods 74 are connected to the connecting block 73 to ensure the synchronous movement between the movable adjustment frame 72 and the connecting block 73.

[0065] The two-way adjustment screw 75 is installed between the two connecting blocks 73 and is rotatably connected to the fixed bracket 2. The two-way adjustment screw 75 is driven by a rotary driver 76. When the driver is started, the two-way adjustment screw 75 rotates, thereby driving the two connecting blocks 73 to move in relative or opposite directions along the axis direction of the two-way adjustment screw 75.

[0066] In actual operation, when the enameled wire 1 needs to be installed in the lower guide pipe 5, the coating head 3 and the upper guide pipe 4, the staff will start the rotary driver 76 to drive the two-way adjustment screw 75 to rotate. As the two-way adjustment screw 75 rotates, the two connecting blocks 73 will move synchronously along the axial direction of the two-way adjustment screw 75, and then drive the movable adjustment frame 72 to move linearly through the synchronous push rod 74. The movement of the movable adjustment frame 72 will drive the lower guide pipe 5 and the upper guide pipe 4 to separate or approach synchronously, thereby adjusting the position of the upper guide pipe 4 and the lower guide pipe 5. The expansion adjustment device 7 can easily adjust the position of the upper guide pipe 4 and the lower guide pipe 5, provide the necessary space for the installation and coating process of the enameled wire 1, and effectively facilitate the staff to pull the wiring.

[0067] See also Figure 3 , Fig.11 and Fig.12 As shown, the uniform coating device includes a circulating conveying device 8, which includes a plurality of anti-drip liquid storage barrels 81 installed below the dust cleaning threading seat 6, and a conveying pipe 82 is provided on the side of each anti-drip liquid storage barrel 81, and the end of the conveying pipe 82 away from the anti-drip liquid storage barrel 81 is connected to the coating head 3.

[0068] The inner wall of the anti-drip liquid storage barrel 81 is provided with a second heating layer, the top of the anti-drip liquid storage barrel 81 is provided with a material receiving cover 811, the material receiving cover 811 is bucket-shaped, the bottom of the material receiving cover 811 is provided with a filter layer 812, and a liquid level sensor is provided inside the anti-drip liquid storage barrel 81.

[0069] During the coating process of the enameled wire 1, some excess lubricant 11 will seep out from the cleaning threading seat 6. The seeping lubricant 11 then falls into the material receiving cover 811 located at the top of the anti-drip liquid storage barrel 81. The filter layer 812 of the material receiving cover 811 can effectively filter out impurities in the lubricant 11, ensuring that the lubricant 11 entering the anti-drip liquid storage barrel 81 is pure. The filtered lubricant 11 then falls into the anti-drip liquid storage barrel 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 barrel 81 is provided with a second heating layer. It is ensured that the lubricant 11 maintains a stable temperature during storage and transportation, thereby ensuring the consistency of the coating effect. The liquid level sensor is installed inside the anti-drip liquid storage barrel 81 for real-time monitoring of the storage status of the lubricant 11 in the barrel. When the lubricant 11 reserve is insufficient, the liquid level sensor will send a signal to prompt the operator to replenish the lubricant 11 in time. When the lubricant 11 needs to be delivered, the delivery pump can be used to quantitatively suck the lubricant 11 in cooperation with the delivery pipe 82, and the lubricant 11 is delivered to the annular nozzle 31 for coating through the delivery pipe 82. The delivery pump is prior art and will not be described in detail here.

[0070] See also Fig.12 and Fig.13 As shown, the uniform coating device includes a plurality of one-way pushing pistons 84 distributed inside each anti-drip liquid storage barrel 81, the one-way pushing piston 84 includes a circulation plate 842, a circulation hole 8421 is provided at the axial position of the circulation plate 842, a floating membrane 843 is provided at the bottom of the circulation plate 842, and the uniform coating device also includes a one-way valve 83 installed on the delivery pipe 82.

[0071] The function of the one-way valve 83 is to effectively prevent the backflow of the lubricant 11 during the conveying process and ensure the one-way stable conveying of the lubricant 11. A circulation plate 842 is installed on the one-way pushing piston 84. A circulation hole 8421 is provided at the axial position of the circulation plate 842 to allow the lubricant 11 to pass through when the piston moves. A floating membrane 843 is provided at the bottom of the circulation plate 842. The floating membrane 843 has elasticity and sealing properties. The floating membrane 843 can fit the edge of the circulation hole 8421 to achieve a sealing effect.

[0072] Under the action of the circulating pushing device 85, the one-way pushing piston 84 reciprocates up and down inside the anti-drip liquid storage barrel 81. When the one-way pushing 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 membrane 843 is not subjected to pressure and maintains a non-fitting state with the flow hole 8421, allowing the lubricant 11 to pass smoothly.

[0073] When the one-way push piston 84 moves downward, the floating membrane 843 is subjected to the squeezing force of the piston, and the floating membrane 843 will be elastically deformed and fit closely with the edge of the flow hole 8421 of the flow plate 842, forming an effective sealing structure, thereby blocking the flow hole 8421. At this time, the lubricant 11 can no longer flow back to the upper part of the anti-drip liquid storage barrel 81 through the flow hole 8421, 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 toward the delivery pipe 82. Since the delivery pipe 82 is provided with a one-way valve 83, the lubricant 11 enters the delivery pipe 82 through the one-way valve 83 under pressure, and continues to be delivered in the direction of the annular nozzle 31. The one-way valve 83 effectively prevents the backflow of the lubricant 11 during the delivery process, ensuring the stable delivery of the lubricant 11.

[0074] See also Fig.12 and Fig.14 As shown, the uniform coating device includes a circulating pushing device 85 that drives multiple one-way pushing pistons 84 to move up and down. The circulating pushing device 85 is provided with multiple pushing shafts 8522 that can move up and down. The multiple pushing shafts 8522 pass through the anti-drip liquid storage barrel 81 and are connected to the one-way pushing pistons 84.

[0075] The circulation pushing device 85 includes a circulation guide sleeve 851 installed at the bottom of the anti-drip liquid storage barrel 81, and a circulation groove 8511 is arranged inside the circulation guide sleeve 851. A rotating column 852 is installed in the circulation guide sleeve 851, and a sliding ball 8521 is installed on the rotating column 852. The sliding ball 8521 is slidably connected with the circulation groove 8511. The top of the rotating column 852 is rotatably connected with the pushing shaft 8522, and a limiting telescopic shaft 8523 is arranged at the bottom of the rotating column 852. A conical driving wheel 853 is also installed on the circulation guide sleeve 851, and the conical driving wheel 853 is slidably connected with the limiting telescopic shaft 8523.

[0076] A circulation groove 8511 is provided inside the circulation guide sleeve 851 to provide a path for the movement of the sliding ball 8521. The rotating column 852 is installed in the circulation guide sleeve 851, and the sliding ball 8521 is installed on the rotating column 852. The sliding ball 8521 is slidably connected with the circulation groove 8511 to ensure that the rotating column 852 can rotate smoothly in the circulation guide sleeve 851 and produce a reciprocating telescopic motion. The top of the rotating column 852 is connected with a pushing shaft 8522, and the pushing shaft 8522 is connected to the one-way pushing piston 84. Therefore, the rotation and telescopic movement of the rotating column 852 will directly drive the one-way pushing piston 84 to reciprocate in the anti-drip liquid storage barrel 81. A limited telescopic shaft 8523 is provided at the bottom of the rotating column 852, and the limited telescopic shaft 8523 is slidably connected with the conical driving wheel 853 on the circulation guide sleeve 851. The conical driving wheel 853 can drive the limited telescopic shaft 8523 to rotate synchronously when rotating.

[0077] When it is necessary to push the one-way pushing piston 84 to reciprocate, the driving device 854 starts 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 limit telescopic shaft 8523, so that the rotating column 852 starts to rotate. As the rotating column 852 rotates, the sliding ball 8521 slides in the circulation groove 8511. Due to the guidance of the circulation groove 8511, the movement of the sliding ball 8521 will guide the rotating column 852 to reciprocate and telescopic motion. The reciprocating and telescopic motion of the rotating column 852 is transmitted to the one-way pushing piston 84 through the pushing shaft 8522, thereby driving the one-way pushing piston 84 to reciprocate in the anti-drip storage barrel 81. This movement process effectively pushes the lubricant 11 from the bottom of the anti-drip storage barrel 81 to the end connected to the delivery pipe 82, ensuring the stable delivery of the lubricant 11.

[0078] To summarize, the circulating pushing device 85 realizes the reciprocating motion of the one-way pushing piston 84 in the anti-drip storage barrel 81 through the rotation of the conical driving wheel 853, the transmission of the limiting telescopic shaft 8523, the rotation and telescopic movement of the rotating column 852, and the transmission of the pushing shaft 8522, thereby ensuring the stable delivery of the lubricant 11 and the consistency of the coating effect.

[0079] A method for coating an enameled wire for improving lubricant utilization rate comprises the following steps: S1, pass the enameled wire 1 through the guide wheel 21, the cleaning threading seat 6, the lower guide pipe 5, the coating head 3 and the upper guide pipe 4; S2, start the feeding mechanism to drive the enameled wire 1 to move, and at the same time, perform preliminary cleaning through the cleaning threading seat 6; S3, the coating head 3 gathers and transports the lubricant 11 to the guide sleeve 33, so that the enameled wire 1 adheres to the lubricant 11 during the rising process, and the enameled 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; S4, the air flow inside the upper guide pipe 4 is blown toward the outer wall of the enameled wire 1, so that the lubricant 11 is evenly spread and coated; S5. The lower guide pipe 5 guides the airflow to assist the lubricant 11 to adhere quickly and evenly, thereby achieving pre-coating.

[0080] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, 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 attached 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 support (2), the fixed support (2) being provided with a plurality of guide wheels (21) for guiding the enameled wire (1), the fixed support (2) being further provided with a plurality of coating heads (3), the coating heads (3) being provided with a guide sleeve (33) for coating the lubricant (11), the top of the guide sleeve (33) being provided with a quantitative perforation (331) for scraping off excess lubricant (11), the inner wall of the quantitative perforation (331) being provided with a plurality of support bars (332) distributed at equal intervals, the support bars (332) being used to support and guide the enameled wire (1) to pass through the quantitative perforation (331) in the middle, the upper and lower sides of each coating head (3) being provided with an upper guide pipe (4) and a lower guide pipe (5), both being used to control the vortex flow of the airflow along the outer wall of the enameled wire (1), and the bottom of the lower guide pipe (5) being provided with a dust cleaning threading seat (6) for cleaning the outer wall of the enameled wire (1).

2. The enameled wire coating device for improving lubricant utilization according to claim 1, characterized in that: The coating head (3) comprises an annular nozzle (31) installed inside, a liquid guide flow funnel (32) is installed below the annular nozzle (31), a mounting hole for mounting a guide sleeve (33) is provided at the axial position of the liquid guide flow funnel (32), and the liquid guide flow funnel (32) is used to guide the lubricant (11) to converge toward the guide sleeve (33).

3. The enameled wire coating device for improving lubricant utilization rate according to claim 1, characterized in that: The upper flow guide pipe (4) and the lower flow guide pipe (5) have the same structure. An air intake pipe (43) for conveying air flow is installed on the upper flow guide pipe (44). A pressure regulating valve (45) for controlling air pressure is installed on the air intake pipe (43). An air flow inner pipe (46) for guiding air flow to swirl along the outer wall of the enameled wire (1) is also provided inside the upper flow guide pipe (4). A first heating layer is provided on the inner wall of the upper flow guide pipe.

4. The enameled wire coating device for improving lubricant utilization rate according to claim 3, characterized in that: The inner wall of the airflow inner tube (46) is provided with a plurality of airflow holes (461), the interior of the airflow inner tube (46) is provided with a plurality of lower conical buckets (462) at equal intervals, the bottom of the lower conical bucket (462) is provided with a central air vent (4621), and the inner wall of the lower conical bucket (462) is provided with a plurality of guide plates (4622) for guiding the vortex flow of the airflow.

5. The enameled wire coating device for improving lubricant utilization rate according to claim 1, characterized in that: The dust cleaning threading seat (6) comprises a blocking bottom plate (61) mounted at the bottom of the lower guide pipe (5); a snap-fit ​​installation sleeve (64) is also mounted at the bottom of the blocking bottom plate (61); a detachable assembly sleeve (65) is mounted in the snap-fit ​​installation sleeve (64); and a dust cleaning layer (651) for cleaning the surface of the enameled wire (1) is provided inside the assembly sleeve (65).

6. The enameled wire coating device for improving lubricant utilization according to claim 1, characterized in that: The uniform coating device comprises an expansion adjustment device (7), on which two synchronously adjustable movable adjustment frames (72) are provided, and the two movable adjustment frames (72) are respectively connected to the upper guide pipe (4) and the lower guide pipe (5).

7. The enameled wire coating device for improving lubricant utilization rate according to claim 1, characterized in that: The uniform coating device comprises a circulating conveying device (8), wherein the circulating conveying device (8) comprises a plurality of anti-drip liquid storage barrels (81) installed below the dust cleaning threading seat (6), and a conveying pipe (82) is provided on the side of each anti-drip liquid storage barrel (81), and one end of the conveying pipe (82) away from the anti-drip liquid storage barrel (81) is connected to the coating head (3).

8. The enameled wire coating device for improving lubricant utilization rate according to claim 7, characterized in that: The uniform coating device comprises a plurality of one-way pushing pistons (84) distributed inside each anti-drip liquid storage barrel (81), the one-way pushing pistons (84) comprising a circulation plate (842), a circulation hole (8421) being provided at the axial position of the circulation plate (842), a floating membrane (843) being provided at the bottom of the circulation plate (842), and the uniform coating device further comprises a one-way valve (83) installed on the delivery pipe (82).

9. The enameled wire coating device for improving lubricant utilization rate according to claim 8, characterized in that: The uniform coating device comprises a circulating pushing device (85) for driving a plurality of one-way pushing pistons (84) to move up and down, wherein a plurality of pushing shafts (8522) that can move up and down are provided on the circulating pushing device (85), and the plurality of pushing shafts (8522) pass through the anti-drip liquid storage barrel (81) and are connected to the one-way pushing pistons (84).

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, passing the enameled wire (1) through the guide wheel (21), the cleaning threading seat (6), the lower guide pipe (5), the coating head (3) and the upper guide pipe (4); S2, starting the feeding mechanism to drive the enameled wire (1) to move, and at the same time, performing preliminary cleaning treatment through the cleaning threading seat (6); S3, the coating head (3) gathers and transports the lubricant (11) to the position of the guide sleeve (33), so that the enameled wire (1) adheres to the lubricant (11) during the rising process, the enameled wire (1) passes through the quantitative perforations (331) of the coating head (3), and the support bar (332) cooperates with the quantitative perforations (331) to ensure that the lubricant (11) adheres to the quantitative state; S4, the air flow inside the upper guide pipe (4) is blown toward the outer wall of the enameled wire (1), so that the lubricant (11) is evenly spread and coated; S5. The lower guide pipe (5) guides the airflow and assists the lubricant (11) to adhere quickly and evenly, thereby achieving pre-coating.

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