An even oiling device and oiling method for enameled wire production

Abstract

The present invention relates to the technical field of enameled wire production, and specifically relates to a uniform oiling device and an oiling method for enameled wire production. An oiling mechanism and an oil scraping mechanism are sequentially arranged along the conveying direction of the enameled wire. The oiling mechanism includes an oil pool and a rotatable oil roller in the oil pool. The enameled wire is tangent to the oil roller and can dip lubricating oil. The key to the oil scraping mechanism is that the circumferential surfaces of two clamping wheels are in contact with each other, forming an oil scraping opening in the middle. It is driven by a rotation driving component to rotate. A flexible oil scraping sleeve is sleeved on the wheels and abuts against each other to clamp the enameled wire. In addition, an adjusting component is used to adjust the distance between the clamping wheels to adapt to different wire diameters. The pressing wheel cooperates with the clamping wheel, and the distance between the two is less than the thickness of the oil scraping sleeve. When the pressing wheel rotates with the clamping wheel, the oil liquid in the oil scraping sleeve can be extruded. In this way, the oiling mechanism first allows the enameled wire to be fully dipped in oil, and the rotating clamping wheel uses the oil scraping sleeve to scrape off the excess oil. The pressing wheel maintains the adsorption force of the oil scraping sleeve, solving the problem of adsorption saturation of the previous oil scraping device.

Description

Technical Field

[0001] The present invention relates to the technical field of enameled wire production, and particularly to a uniform oiling device and an oiling method for enameled wire production. Background Art

[0002] In the enameled wire manufacturing process, after the copper wire is coated with insulating paint and cured, a layer of lubricating oil also needs to be coated on the surface to protect the insulating paint film from damage during the coil winding operation. Currently, the common method of coating lubricating oil is to use an oil felt to supply oil, that is, the wire coated with insulating paint passes through an oil felt saturated with lubricating oil, or the wire is first fully wetted with oil, and then the excess oil is scraped off through the oil felt. The structure of this method device is relatively simple, and the production reliability is relatively high. The lubricating oil with a certain viscosity can uniformly form an oil film along the circumferential direction of the enameled wire.

[0003] The distribution of the surface lubricating oil of the enameled wire is uneven. When too much lubricating oil is applied to the surface of the enameled wire, it causes waste of the lubricating oil. When too little lubricating oil is applied to the surface of the enameled wire, it affects the lubrication effect of the enameled wire, causing damage to the surface insulating layer of the enameled wire, resulting in affecting the service life of the enameled wire.

[0004] Chinese Patent Publication No. CN115365053B discloses an 180 - grade self - adhesive polyurethane enameled wire production system, including a body, an inlet, an outlet, an oiling device, a scraping device, and a lifting mechanism; an oiling device is arranged in the space inside the body. The enameled wire entering along the inlet is immersed in the lubricating oil by using the oiling device, so that the lubricating oil fully adheres to the surface of the enameled wire, and a scraping device is arranged on the right side wall of the partition plate.

[0005] In this production system, during the process of the enameled wire passing through the scraping device, the scraping device can scrape off the excess lubricating oil on the surface of the enameled wire. However, when the lubricating oil gradually accumulates in the scraper structure. When the oil - absorbing cotton thread and the supporting sponge layer reach the critical value of oil - absorption saturation, they lose the ability to scrape off the excess lubricating oil on the surface of the enameled wire. This is because in the saturated state, the internal pores of the oil - absorbing cotton thread and the sponge layer are filled with lubricating oil, and the excess oil on the surface of the enameled wire cannot be adsorbed through physical mechanisms such as capillary action, and thus the scraping action cannot be realized.

[0006] Moreover, the saturated oil - absorbing cotton thread and sponge layer, due to the large amount of lubricating oil stored inside, will instead cause the phenomenon of reverse transfer of the lubricating oil during the contact with the enameled wire. Specifically, during the contact and friction between the two, the lubricating oil in the oil - absorbing cotton thread and the sponge layer is more likely to adhere to the surface of the enameled wire under the action of extrusion and adhesion, etc., increasing the lubricating oil content on the surface of the enameled wire, greatly interfering with the normal production process and subsequent performance of the enameled wire, and posing potential risks to the entire production process. Summary of the Invention

[0007] In view of the problems of the prior art, a uniform oiling device and an oiling method for enameled wire production are provided. The oiling mechanism fully soaks the surface of the enameled wire with lubricating oil, and the rotating drive assembly drives two rotatable clamping wheels, so that the flexible oil wiping sleeves sleeved on the two clamping wheels can scrape off the excess lubricating oil on the surface of the enameled wire with a certain clamping force. At the same time, because the clamping wheels can rotate, the extrusion wheel in contact with the circumferential surface of the clamping wheel can extrude the oil in the flexible oil wiping sleeve, ensuring that the flexible oil wiping sleeve is always in a state capable of adsorbing excess lubricating oil, solving the problem that the oil scraping device in the prior art will be saturated with adsorbed oil.

[0008] To solve the problems of the prior art, the present invention provides a uniform oiling device for enameled wire production, including an oiling mechanism and an oil wiping mechanism arranged in sequence along the enameled wire conveying direction; the oiling mechanism includes an oil pool and an oil roller rotatable in the oil pool, and the enameled wire is tangent to the surface of the oil roller; the oil scraping mechanism includes two clamping wheels with circumferential surfaces in contact with each other and a rotating drive assembly for driving the two clamping wheels to rotate. A wiping opening for the enameled wire to pass through is formed between the two clamping wheels. Flexible oil wiping sleeves are sleeved on the circumferential surfaces of the two clamping wheels, and the flexible oil wiping sleeves on the two clamping wheels are in contact with each other to clamp the enameled wire. The oil wiping mechanism further includes an adjusting assembly for adjusting the distance between the two clamping wheels and an extrusion wheel for cooperating with the clamping wheels to extrude the flexible oil wiping sleeve. The minimum distance between the surface of the extrusion wheel and the surface of the clamping wheel is less than the thickness of the flexible oil wiping sleeve.

[0009] Preferably, the oil wiping mechanism further includes an oil storage tank with an open top. The adjusting assembly includes a support, a double-headed screw rod, a driving member, and a driven frame; the support is horizontally arranged on the top of the oil storage tank, and an oil dropping port is formed on the support; the double-headed screw rod is horizontally rotatably arranged in the support; there are two driving members, and the two driving members can slide towards or away from each other on the double-headed screw rod; a driven frame is elastically connected to the back side of each driving member, and a clamping wheel and an extrusion wheel are rotatably arranged on each driven frame.

[0010] Preferably, two optical rods parallel to the double-headed screw rod are arranged in the support. The driving member includes a driving plate and an elastic buffer element; the driving plate is slidably arranged on the optical rod, a screw nut threadedly connected to the double-headed screw rod is arranged on the driving plate, a connecting sleeve slidably penetrating the driven frame is arranged on the side of the driving plate facing the driven frame, the connecting sleeve is coaxial with the optical rod, and a fixing ring is arranged at the end of the connecting sleeve; the elastic buffer element is sleeved on the connecting sleeve, and the elastic buffer element is located between the fixing ring and the driven frame.

[0011] Preferably, a V-shaped plate is arranged on the side of the driven frame facing the driving plate. The tip of the V-shaped plate faces upward and is located at the bottom of the extrusion wheel, and the double-headed screw rod penetrates through the V-shaped plate.

[0012] Preferably, the driven frame is provided with a sliding groove which is horizontally perpendicular to the double-headed screw, a sliding seat is provided in the sliding groove, the extrusion wheel has an extrusion shaft coaxial therewith, the extrusion shaft horizontally passes through the sliding seat and is rotatably connected thereto, the driven frame is also provided with a rotating seat, an adjusting bolt threadedly connected thereto is provided in the rotating seat, the adjusting bolt extends along the sliding direction of the sliding seat, a connecting head is provided on the top of the sliding seat, one end of the adjusting bolt passes through the connecting head and is rotatably connected thereto.

[0013] Preferably, the top of the driven frame is inclined, the clamping wheel is a conical wheel, and a clamping shaft is provided in the clamping wheel which is coaxial with the clamping wheel and rotatably connected to the top of the driven frame. The clamping shaft is transmission-connected to the rotary drive assembly. An annular groove is provided on the surface of the clamping wheel, and abutment strips distributed along its circumference are also provided in the annular groove. The abutment strips extend along the width direction of the annular groove, and a flexible oil-wiping sleeve is sleeved in the annular groove.

[0014] Preferably, a driving frame is provided on one side of the support, and the rotating driving assembly includes a driving motor, a driving shaft and a driven shaft; a stand is provided between the oiling mechanism and the oil wiping mechanism, and the driving motor is provided in the stand; the driving shaft is rotatably provided in the driving frame, and the driving shaft is transmission-connected with the output shaft of the driving motor; the driven shaft is rotatably provided at the bottom of the two clamping wheels, and the driven shaft is vertically provided with the driving shaft, a driving bevel gear is provided on the driving shaft, and a driven bevel gear is provided on the driven shaft, and the driving bevel gear and the driven bevel gear are meshed; two transmission frames capable of moving toward each other are provided on the driven shaft, and a sliding bevel gear spline-connected to the driven shaft and a fixed bevel gear coaxially fixedly connected to the clamping shaft are provided on the transmission frame, and the sliding bevel gear is meshed with the fixed bevel gear.

[0015] Preferably, a fixed frame is also provided on the top of the oil storage tank, and a support is slidably arranged on the top of the fixed frame along a longitudinal direction perpendicular to the enameled wire. A driving disk is provided on the output shaft of the driving motor, and a laterally extending driving groove is provided on the driving frame. A driving column deviating from its axis is provided on the driving disk, and the driving column extends into the driving groove and slides with it, and the driving disk is connected to the driving shaft by transmission.

[0016] Preferably, a transmission shaft is provided on the driving frame, one end of the transmission shaft is transmission-connected to the driving shaft, and a transmission wheel coaxial therewith is provided at the other end of the transmission shaft; a laterally extending guide groove is also provided on the driving frame, a sliding block is provided in the guide groove, a tensioning wheel is provided on the sliding block, a tension spring is provided between the sliding block and one end of the guide groove, and a conveyor belt is transmission-connected among the driving disk, the tensioning wheel and the transmission wheel.

[0017] A uniform oiling method for enameled wire production, using a uniform oiling device for enameled wire production, comprises the following steps:

[0018] Step 1, guiding the enameled wire to pass through the surface of the oil roller and the oil wiping port in sequence;

[0019] Step 2: The oil roller rotates and applies oil to the surface of the enameled wire.

[0020] Step 3: Pre-adjust the clamping force of the oil wiping port on the enameled wire. When the enameled wire passes through the two flexible oil wiping sleeves, the excess oil is wiped off.

[0021] Step 4: The extrusion wheel abuts against the surface of the clamping wheel to extrude the lubricating oil in the flexible oil wiping sleeve.

[0022] The beneficial effects of this application compared with the prior art are as follows:

[0023] In this application, the oiling mechanism enables the surface of the enameled wire to be fully dipped in the lubricating oil to reach a saturated state. Subsequently, the rotation drive assembly drives a pair of clamping wheels into operation. The outer surfaces of these two clamping wheels are sleeved with flexible oil wiping sleeves. With the driving force given by the rotation drive assembly, the two clamping wheels rotate towards each other, generating an appropriate clamping force that precisely acts on the surface of the enameled wire. During this dynamic oil wiping process, the flexible oil wiping sleeve, relying on its flexible characteristics and the established clamping force, efficiently wipes off the excess lubricating oil on the surface of the enameled wire, ensuring that the amount of lubricating oil on the surface of the enameled wire meets the process standards.

[0024] Meanwhile, to maintain the long-term oil absorption efficiency of the flexible oil wiping sleeve, the oiling device is also equipped with an extrusion wheel structure. The extrusion wheel is in close contact with the circumferential surface of the clamping wheel. As the clamping wheel continues to rotate, the extrusion wheel applies a stable and regular extrusion force to the flexible oil wiping sleeve. Based on this physical extrusion mechanism, the oil absorbed inside the flexible oil wiping sleeve can be orderly extruded, thus creating enough pore space to keep the flexible oil wiping sleeve in an unsaturated state with sufficient adsorption capacity at all times, ready to absorb the excess lubricating oil on the surface of the enameled wire in the subsequent oil wiping process. In this way, compared with the traditional oil wiping device that frequently encounters the problem of saturated oil absorption and subsequent oil wiping failure, it effectively guarantees the stability and continuity of the lubrication treatment process of the enameled wire. Through dynamic extrusion, the oil in the flexible oil wiping sleeve can be discharged in time, the pores always remain open, and the oil absorption capacity does not decay. This means that the device does not need to frequently stop the machine to replace the oil absorption components, the operation and maintenance cycle is greatly extended, and the overall operation efficiency of the production line is significantly improved. Description of the Drawings

[0025] Figure 1 is a perspective view of a uniform oiling device for enameled wire production according to the present invention.

[0026] Figure 2 is a top view of a uniform oiling device for enameled wire production according to the present invention.

[0027] Figure 3 is a perspective view of the oil wiping mechanism in a uniform oiling device for enameled wire production according to the present invention.

[0028] Figure 4 is Figure 3 The partial enlarged view of part A of

[0029] Figure 5 is Figure 3 The partial enlarged view of part B of

[0030] Figure 6 It is the front view of the oil wiping mechanism in the uniform oiling device for enameled wire production of the present invention.

[0031] Figure 7 It is the three-dimensional exploded view of the oil wiping mechanism in the uniform oiling device for enameled wire production of the present invention.

[0032] Figure 8 It is the three-dimensional view of the adjusting component in the uniform oiling device for enameled wire production of the present invention.

[0033] Figure 9 It is the three-dimensional view of the clamping wheel in the uniform oiling device for enameled wire production of the present invention.

[0034] Figure 10 It is the three-dimensional exploded view of the clamping wheel and the flexible oil wiping sleeve in the uniform oiling device for enameled wire production of the present invention.

[0035] The reference numerals in the figure are: 11, oil sump; 12, oil roller; 21, clamping wheel; 211, clamping shaft; 212, annular groove; 213, abutting strip; 22, rotary drive assembly; 221, drive motor; 222, driving shaft; 223, driven shaft; 224, driving bevel gear; 225, driven bevel gear; 226, transmission frame; 227, sliding bevel gear; 228, fixed bevel gear; 229, drive disk; 2291, drive column; 23, flexible oil wiping sleeve; 24, adjusting component; 241, support; 2411, drive frame; 2412, transmission shaft; 2413, transmission wheel; 2414, sliding block; 2415, tensioning wheel; 2416, tension spring; 2417, transmission belt; 242, double-headed lead screw; 2431, active plate; 2432, elastic buffer element; 2433, connecting sleeve; 2434, fixing ring; 244, driven frame; 2441, V-shaped plate; 2442, rotating seat; 245, optical rod; 246, sliding seat; 2461, connecting head; 247, adjusting bolt; 25, pressing wheel; 251, pressing shaft; 3, upright seat; 4, oil storage tank; 41, fixing frame; 42, column; 43, elastic support element; 51, drive shaft; 52, first bevel gear; 53, second bevel gear. Detailed implementation manners

[0036] 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 with reference to the drawings and specific implementation manners.

[0037] As Figure 1 , Figure 2 and Figure 3 shown, the present application provides a uniform oiling device for enameled wire production, including an oiling mechanism and an oil wiping mechanism arranged in sequence along the enameled wire conveying direction; the oiling mechanism includes an oil pool 11 and an oil roller 12 rotatable in the oil pool 11, and the enameled wire is tangent to the surface of the oil roller 12; the oil scraping mechanism includes two clamping wheels 21 with mutually abutting circumferential surfaces and a rotation driving assembly 22 for driving the two clamping wheels 21 to rotate. A wiping opening for the enameled wire to pass through is formed between the two clamping wheels 21. Flexible oil wiping sleeves 23 are sleeved on the circumferential surfaces of the two clamping wheels 21, and the flexible oil wiping sleeves 23 on the two clamping wheels 21 abut against each other to clamp the enameled wire. The oil wiping mechanism further includes an adjusting assembly 24 for adjusting the distance between the two clamping wheels 21 and a pressing wheel 25 for cooperating with the clamping wheels 21 to squeeze the flexible oil wiping sleeves 23. The minimum distance between the surface of the pressing wheel 25 and the surface of the clamping wheel 21 is less than the thickness of the flexible oil wiping sleeve 23.

[0038] As the starting link of the oiling process, the oiling mechanism includes an oil pool 11 and a rotatable oil roller 12 arranged inside the oil pool 11. The oil pool 11 serves as a storage container for lubricating oil, continuously supplying an oil source for subsequent coating operations. The oil roller 12 is assembled in the oil pool 11, and its rotating shaft is firmly connected to the structure of the oil pool 11. The enameled wire contacts the surface of the oil roller 12 in a tangent manner. When the oil roller 12 rotates at a constant speed, by virtue of the adhesion characteristics of the lubricating oil, an appropriate amount of lubricating oil can be evenly adhered to the surface of the enameled wire, laying a foundation for the subsequent oil scraping process.

[0039] The oil wiping mechanism is responsible for removing the excess lubricating oil on the surface of the enameled wire to ensure that the amount of lubricating oil on the surface of the final product meets the process standards. Among them, the circumferential surfaces of the two clamping wheels 21 are closely abutted, and a wiping opening for the enameled wire to pass through is formed between them. The rotation driving assembly 22 is mechanically connected to the clamping wheels 21, supplying stable and continuous rotation power to the clamping wheels 21 and driving them to make a uniform circular motion around the axis. Flexible oil wiping sleeves 23 are sleeved on the circumferential surfaces of the two clamping wheels 21, and these two flexible oil wiping sleeves 23 are in contact with each other, thereby applying an appropriate clamping force to the enameled wire passing through. During the rotation of the clamping wheels 21, the flexible oil wiping sleeves 23, relying on their flexible material characteristics, fit the surface of the enameled wire to scrape off the excess lubricating oil.

[0040] The adjusting assembly 24 can finely adjust the distance between the two clamping wheels 21 to ensure that for enameled wires of various specifications, an ideal clamping and oil scraping effect can be maintained. The pressing wheel 25 operates in coordination with the clamping wheels 21. The minimum distance between the surface of the pressing wheel 25 and the surface of the clamping wheel 21 is maintained at a specific value, so as to ensure that when the clamping wheels 21 rotate, the pressing wheel 25 can periodically squeeze the flexible oil wiping sleeves 23 to squeeze out the absorbed oil, ensuring that the flexible oil wiping sleeves 23 always maintain high-efficiency oil absorption and oil scraping capabilities.

[0041] The flexible oil wiping sleeves 23 on the two clamping wheels 21 can form a state of fully wrapping the enameled wire, so that when the enameled wire passes through the two flexible oil wiping sleeves 23, the excess oil on the surface of the enameled wire can be wiped off, avoiding the problem of uneven oil thickness on the surface of the enameled wire caused by uneven oil wiping.

[0042] Such as Figure 6 、 Figure 7 and Figure 8 As shown, the oil wiping mechanism further includes an oil storage tank 4 with an open top. The adjusting assembly 24 includes a support 241, a double-headed screw rod 242, a driving member, and a driven frame 244. The support 241 is horizontally arranged on the top of the oil storage tank 4, and an oil dropping port is opened on the support 241. The double-headed screw rod 242 is horizontally rotatably arranged in the support 241. There are two driving members, and the two driving members can be slidably arranged on the double-headed screw rod in opposite or away directions. A driven frame 244 is elastically connected to the back side of each driving member, and a clamping wheel 21 and a pressing wheel 25 are rotatably arranged on each driven frame 244.

[0043] The support 241 is stably arranged on the top of the oil storage tank 4 in a horizontal posture, and an oil dropping port is drilled on its structure. The oil dropping port ensures that the oil squeezed out from the flexible oil wiping sleeve 23 can pass through the oil dropping port and be collected in the oil storage tank 4.

[0044] There are two driving members in total, which are assembled in the support 241 in a sliding manner towards each other. The threads with different helix directions at both ends of the double-headed screw rod 242 respectively penetrate through the corresponding driving members precisely and form a stable threaded connection relationship with them. When an external power source drives the double-headed screw rod 242 to rotate, according to the principle of screw drive, the two driving members will perform linear movement actions towards or away from each other within the guide rail range defined by the support 241. The whole process is smooth and the accuracy is controllable, providing a basic displacement drive for subsequent linkage adjustment.

[0045] There are also two driven frames 244, and the two are precisely arranged in a sliding state towards each other. The two driven frames 244 are respectively located on the back sides of the two driving members, and an elastic connection structure is built between the driving member and its adjacent driven frame 244. It can maintain a certain pre-tightening force under normal conditions and provide accurate and stable elastic force feedback when deformed by force. The clamping wheel 21 and the pressing wheel 25 are both rotatably installed on the driven frame 244 through bearings, so as to ensure that they can rotate smoothly around the axis during operation. When the two clamping wheels 21 are in contact with each other, the elastic force generated by the elastic connection between the driving member and the driven member must be overcome. The elastic force provides a stable initial pre-tightening force for the clamping wheel 21, ensuring the stable clamping of the enameled wire and the consistency of the oil scraping action.

[0046] Such as Figure 7 and Figure 8As shown, two smooth rods 245 parallel to the double-headed lead screw 242 are provided in the support 241. The active member includes an active plate 2431 and an elastic buffer element 2432. The active plate 2431 is slidably arranged on the smooth rods 245. A lead screw nut threadedly connected to the double-headed lead screw 242 is provided on the active plate 2431. On the side of the active plate 2431 facing the driven frame 244, a connecting sleeve 2433 slidably penetrating the driven frame 244 is provided. The connecting sleeve 2433 is coaxial with the smooth rod 245. A fixing ring 2434 is provided at the end of the connecting sleeve 2433. The elastic buffer element 2432 is sleeved on the connecting sleeve 2433, and the elastic buffer element 2432 is located between the fixing ring 2434 and the driven frame 244.

[0047] The active plate 2431 is slidably adapted to the two smooth rods 245. On the active plate 2431, a lead screw nut threadedly engaged with the double-headed lead screw 242 is assembled. The lead screw nut can efficiently convert the rotational motion into linear displacement in response to the rotation of the double-headed lead screw 242.

[0048] On the side of the active plate 2431 facing the driven frame 244, a connecting sleeve 2433 is further provided. The connecting sleeve 2433 slidably penetrates the driven frame 244 and is coaxial with the smooth rod 245. A fixing ring 2434 is firmly installed at the end of the connecting sleeve 2433.

[0049] The elastic buffer element 2432 is arranged on the connecting sleeve 2433 in a sleeved form and is positioned in the interval between the fixing ring 2434 and the driven frame 244. The elastic buffer element 2432 can not only provide a buffering effect for the relative movement between the active member and the driven frame 244, but also store and release elastic potential energy when needed to maintain the dynamic stability of the device structure and assist in accurately regulating the distance between the clamping wheel 21 and the pressing wheel 25.

[0050] As Figure 7 and Figure 8 shown, on the side of the driven frame 244 facing the active plate 2431, a V-shaped plate 2441 is provided. The tip of the V-shaped plate 2441 faces upward and is located at the bottom of the pressing wheel 25. The double-headed lead screw 242 penetrates the V-shaped plate 2441.

[0051] By providing the V-shaped plate 2441 located at the bottom of the double-headed lead screw 242 on the driven frame 244, it is possible to prevent the lubricating oil extruded from the flexible oil wiping sleeve 23 from adhering to the double-headed lead screw 242, and at the same time enable the lubricating oil to flow on the V-shaped plate 2441 and slide into the oil storage tank 4.

[0052] As Figure 5As shown, the driven frame 244 is provided with a sliding groove which is horizontally perpendicular to the double-headed screw rod 242, and a sliding seat 246 is provided in the sliding groove. The extrusion wheel 25 has an extrusion shaft 251 coaxial therewith, and the extrusion shaft 251 horizontally penetrates the sliding seat 246 and is rotatably connected thereto. The driven frame 244 is also provided with a rotating seat 2442, and an adjusting bolt 247 which is threadedly connected thereto is provided in the rotating seat 2442. The adjusting bolt 247 extends along the sliding direction of the sliding seat 246, and a connecting head 2461 is provided on the top of the sliding seat 246, and one end of the adjusting bolt 247 penetrates the connecting head 2461 and is rotatably connected thereto.

[0053] In order to adjust the extrusion pressure of the extrusion wheel 25 on the flexible oil wiping sleeve 23, the adjusting bolt 247 is rotated relative to the rotating seat 2442, so that the sliding seat 246 can slide in the sliding groove, thereby flexibly changing the relative position of the extrusion wheel 25 and the clamping wheel 21, thereby achieving precise control of the extrusion pressure of the extrusion wheel 25 and meeting the extrusion pressure requirements of the flexible oil wiping sleeve 23 under different oil absorption and scraping states.

[0054] like Figure 6 , Figure 9 and Figure 10 As shown, the top of the driven frame 244 is inclined, the clamping wheel 21 is a conical wheel, and a clamping shaft 211 is provided in the clamping wheel 21 which is coaxial with the driven frame 244 and rotatably connected to the top of the driven frame 244. The clamping shaft 211 is transmission-connected to the rotary drive assembly 22. The surface of the clamping wheel 21 is provided with an annular groove 212, and the annular groove 212 is also provided with abutment strips 213 distributed along its circumference. The abutment strips 213 extend along the width direction of the annular groove 212, and a flexible oil-wiping sleeve 23 is sleeved in the annular groove 212.

[0055] The clamping wheels 21 are conical wheels, so that the clamping openings of the two clamping wheels 21 are in a vertical state, and the contact surfaces of the two clamping wheels 21 and the extrusion wheel 25 face downward, which is more convenient for squeezing out the lubricating oil in the flexible oil wiping sleeve 23 and preventing the lubricating oil from being thrown back onto the enameled wire when the clamping wheels 21 rotate.

[0056] like Figure 2 , Figure 3 and Figure 6As shown in the figure, a driving frame 2411 is provided on one side of the support 241. The rotation driving assembly 22 includes a driving motor 221, a driving shaft 222 and a driven shaft 223. A vertical seat 3 is arranged between the oiling mechanism and the oil wiping mechanism. The driving motor 221 is arranged in the vertical seat 3. The driving shaft 222 is rotatably arranged in the driving frame 2411, and the driving shaft 222 is in transmission connection with the output shaft of the driving motor 221. The driven shaft 223 is rotatably arranged at the bottom of the two clamping wheels 21. The driven shaft 223 is arranged perpendicular to the driving shaft 222. A driving bevel gear 224 is arranged on the driving shaft 222, and a driven bevel gear 225 is arranged on the driven shaft 223. The driving bevel gear 224 and the driven bevel gear 225 are engaged. Two transmission frames 226 capable of moving towards each other are arranged on the driven shaft 223. A sliding bevel gear 227 splined to the driven shaft 223 and a fixed bevel gear 228 coaxially and fixedly connected to the clamping shaft 211 are arranged on the transmission frame 226. The sliding bevel gear 227 is engaged with the fixed bevel gear 228.

[0057] The spline connection consists of an internal spline and an external spline. Both the internal and external splines are multi-tooth parts. The spline on the surface of the driven shaft 223 is the internal spline, and the spline on the inner surface of the sliding bevel gear 227 is the external spline. While the driven shaft 223 can transmit torque to the sliding bevel gear 227, the sliding bevel gear 227 can slide on the driven shaft 223.

[0058] The driving motor 221 is a double-shaft motor. A first bevel gear 52 is arranged on the output shaft at the other end of the driving motor 221. A driving shaft 51 is arranged on the vertical seat 3. A second bevel gear 53 engaged with the first bevel gear 52 is arranged on the driving shaft 51. Both ends of the driving shaft 51 are in transmission connection with both ends of the oil roller 12.

[0059] When it is necessary to rotate the two clamping wheels 21 for adjusting the distance, start the driving motor 221. The driving motor 221 transmits torque to the rotating shaft. The driving shaft 222 and the driven shaft 223 are driven by the driving bevel gear 224 and the driven bevel gear 225, so that the driven wheel can drive the two sliding bevel gears 227 thereon to rotate. The fixed bevel gear 228 installed on the clamping shaft 211 rotates with the sliding bevel gear 227, so that the torque can be transmitted to the clamping shaft 211, so that the clamping shaft 211 drives the clamping wheel 21 to rotate on the driven frame 244. And when the two driven frames 244 move towards each other, the two transmission frames 226 can move towards each other on the driven shaft 223 to ensure that the sliding bevel gear 227 and the fixed bevel gear 228 are always kept engaged.

[0060] As Figure 4As shown, a fixed frame 41 is further provided at the top of the oil storage tank 4. The support 241 is slidably arranged on the top of the fixed frame 41 longitudinally perpendicular to the enameled wire. A driving disc 229 is arranged on the output shaft of the driving motor 221. A laterally extending driving groove is arranged on the driving frame 2411. A driving column 2291 offset from its axis is arranged on the driving disc 229. The driving column 2291 extends into the driving groove and is slidably engaged with it. The driving disc 229 is in transmission connection with the driving shaft 222.

[0061] Vertical columns 42 extending in the vertical direction are arranged at the four corners of the fixed frame 41. The vertical columns 42 slidably penetrate through the vertical seats 3. Elastic support elements 43 are sleeved on the vertical columns 42. The elastic support elements 43 are located between the fixed frame 41 and the support 241.

[0062] To avoid excessive local wear of the flexible oil wiping sleeve 23, the distance between the two flexible oil wiping sleeves 23 is adjusted so that the two flexible oil wiping sleeves 23 can reciprocate longitudinally in a state where they can wipe off the excess oil. When the driving motor 221 rotates, its output shaft drives the driving disc 229 to rotate. The driving column 2291 offset from the axis on the driving disc 229 extends into the driving groove and is slidably engaged with it. When the driving disc 229 rotates, the driving frame 2411 can drive the support 241 to reciprocate on the top of the fixed frame 41. At the same time, the elastic support element 43 can buffer the vibration force, and the vertical column 42 can guide the sliding of the support 241.

[0063] As Figure 4 shown, a transmission shaft 2412 is arranged on the driving frame 2411. One end of the transmission shaft 2412 is in transmission connection with the driving shaft 222. A transmission wheel 2413 coaxial with it is arranged at the other end of the transmission shaft 2412. A laterally extending guiding groove is also arranged on the driving frame 2411. A sliding block 2414 is arranged in the guiding groove. A tension wheel 2415 is arranged on the sliding block 2414. A tension spring 2416 is arranged between the sliding block 2414 and one end of the guiding groove. The driving disc 229, the tension wheel 2415 and the transmission wheel 2413 are connected by a transmission belt.

[0064] To ensure that the torque of the driving motor 221 can also be transmitted to the driving shaft 222 when the support 241 moves up and down, a transmission shaft 2412 is arranged on the driving frame 2411 so that the transmission shaft 2412 is in transmission connection with the driving shaft 222. The other end of the transmission shaft 2412 is in transmission connection with the driving disc 229 through the transmission wheel 2413, the transmission belt 2417 and the tension wheel 2415. When the driving frame 2411 reciprocates longitudinally, the tension spring 2416 can provide a pulling force for the sliding block 2414 so that the tension wheel 2415 always abuts against the inner side of the transmission belt 2417 to ensure that the transmission belt 2417 is always in a tensioned state, thereby ensuring that the torque of the driving disc 229 can be stably transmitted to the driving shaft 222.

[0065] A uniform oiling method for enameled wire production, using a uniform oiling device for enameled wire production, includes the following steps:

[0066] Step 1, guide the enameled wire to pass through the surface of the oil roller 12 and the oil wiping port in sequence;

[0067] Step 2, rotate the oil roller 12 and apply oil to the surface of the enameled wire;

[0068] Step 3, pre-adjust the clamping force of the oil wiping port on the enameled wire, and the excess oil is wiped off when the enameled wire passes through the two flexible oil wiping sleeves 23;

[0069] Step 4, the extrusion wheel 25 abuts against the surface of the clamping wheel 21 to extrude the lubricating oil in the flexible oil wiping sleeve 23.

[0070] The above embodiments only represent one or several implementation manners of the present invention, and the description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the present invention patent. 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 patent shall be subject to the appended claims.

Claims

1. A uniform oiling device for enameled wire production, characterized in that: It includes an oiling mechanism and an oil wiping mechanism which are sequentially arranged along the conveying direction of the enameled wire; The oiling mechanism comprises an oil pool (11) and an oil roller (12) rotatably arranged in the oil pool (11), and the enameled wire is tangent to the surface of the oil roller (12); The oil scraping mechanism comprises two clamping wheels (21) whose circumferential surfaces abut against each other and a rotation driving assembly (22) for driving the two clamping wheels (21) to rotate; an oil scraping port for the enameled wire to pass through is formed between the two clamping wheels (21); flexible oil scraping sleeves (23) are sleeved on the circumferential surfaces of the two clamping wheels (21); the flexible oil scraping sleeves (23) on the two clamping wheels (21) abut against each other to clamp the enameled wire; the oil scraping mechanism further comprises an adjusting assembly (24) for adjusting the distance between the two clamping wheels (21) and an extruding wheel (25) cooperating with the clamping wheel (21) to squeeze the flexible oil scraping sleeve (23); the minimum distance between the surface of the extruding wheel (25) and the surface of the clamping wheel (21) is less than the thickness of the flexible oil scraping sleeve (23); The oil wiping mechanism also includes an oil storage tank (4) with an opening at the top, and the adjustment assembly (24) includes a support (241), a double-ended screw rod (242), a driving member and a driven frame (244); The support (241) is horizontally arranged on the top of the oil storage tank (4), and an oil drop port is provided on the support (241); The double-ended screw rod (242) is horizontally rotatably arranged in the support (241); There are two active parts, and the two active parts can be slidably arranged on the bidirectional screw rod towards or away from each other; The back side of each active member is elastically connected to a driven frame (244), and each driven frame (244) is rotatably provided with a clamping wheel (21) and a squeezing wheel (25); Two smooth rods (245) parallel to the double-ended lead screw (242) are arranged in the support (241), and the active component comprises an active plate (2431) and an elastic buffer element (2432); The active plate (2431) is slidably disposed on the polished rod (245); a screw nut threadedly connected to the double-headed screw (242) is disposed on the active plate (2431); a connecting sleeve (2433) slidably penetrating the driven frame (244) is disposed on one side of the active plate (2431) facing the driven frame (244); the connecting sleeve (2433) is coaxial with the polished rod (245); and a fixing ring (2434) is disposed at the end of the connecting sleeve (2433); The elastic buffer element (2432) is sleeved on the connecting sleeve (2433), and the elastic buffer element (2432) is located between the fixing ring (2434) and the driven frame (244); The driven frame (244) is provided with a sliding groove which is horizontally perpendicular to the double-headed screw rod (242), a sliding seat (246) is provided in the sliding groove, the extrusion wheel (25) has an extrusion shaft (251) which is coaxial with the extrusion wheel (25), the extrusion shaft (251) horizontally penetrates the sliding seat (246) and is rotatably connected thereto, and the driven frame (244) is also provided with a rotating seat (2442); The top of the driven frame (244) is inclined, the clamping wheel (21) is a conical wheel, a clamping shaft (211) is provided in the clamping wheel (21) and is coaxial with the clamping wheel and rotatably connected to the top of the driven frame (244), and the clamping shaft (211) is drivingly connected to the rotary drive assembly (22); A driving frame (2411) is provided on one side of the support (241), and the rotary driving assembly (22) comprises a driving motor (221), a driving shaft (222) and a driven shaft (223); The driving shaft (222) is rotatably disposed in the driving frame (2411), and the driving shaft (222) is drivingly connected to the output shaft of the driving motor (221); A fixing frame (41) is also provided on the top of the oil storage tank (4); a support (241) is slidably provided on the top of the fixing frame (41) in a longitudinal direction perpendicular to the enameled wire; a driving disk (229) is provided on the output shaft of the driving motor (221); a driving groove extending transversely is provided on the driving frame (2411); a driving column (2291) deviating from the axis of the driving disk (229) is provided on the driving disk (229); the driving column (2291) extends into the driving groove and slidably cooperates with the driving groove; and the driving disk (229) is transmission-connected to the driving shaft (222).

2. The uniform oiling device for producing enameled wire according to claim 1, characterized in that: A V-shaped plate (2441) is provided on one side of the driven frame (244) facing the active plate (2431), the tip of the V-shaped plate (2441) faces upward and is located at the bottom of the extrusion wheel (25), and the double-headed screw rod (242) passes through the V-shaped plate (2441).

3. The uniform oiling device for producing enameled wire according to claim 2, characterized in that: An adjusting bolt (247) threadedly connected to the rotating seat (2442) is provided in the rotating seat (2442), the adjusting bolt (247) extending along the sliding direction of the sliding seat (246), a connecting head (2461) is provided on the top of the sliding seat (246), and one end of the adjusting bolt (247) passes through the connecting head (2461) and is rotatably connected thereto.

4. The uniform oiling device for producing enameled wire according to claim 3, characterized in that: The surface of the clamping wheel (21) is provided with an annular groove (212), the annular groove (212) is further provided with abutment strips (213) distributed along its circumference, the abutment strips (213) extending along the width direction of the annular groove (212), and the flexible oil wiping sleeve (23) is sleeved in the annular groove (212).

5. The uniform oiling device for producing enameled wire according to claim 4, characterized in that: A stand (3) is arranged between the oiling mechanism and the wiping mechanism, and a driving motor (221) is arranged in the stand (3); A driven shaft (223) is rotatably disposed at the bottom of the two clamping wheels (21), the driven shaft (223) is vertically disposed with respect to the driving shaft (222), a driving bevel gear (224) is disposed on the driving shaft (222), a driven bevel gear (225) is disposed on the driven shaft (223), and the driving bevel gear (224) and the driven bevel gear (225) are meshed; The driven shaft (223) is provided with two transmission frames (226) capable of moving toward each other. The transmission frame (226) is provided with a sliding bevel gear (227) spline-connected to the driven shaft (223) and a fixed bevel gear (228) coaxially fixedly connected to the clamping shaft (211). The sliding bevel gear (227) meshes with the fixed bevel gear (228).

6. The uniform oiling device for producing enameled wire according to claim 5, characterized in that: A transmission shaft (2412) is provided on the driving frame (2411), one end of the transmission shaft (2412) is transmission-connected to the driving shaft (222), and the other end of the transmission shaft (2412) is provided with a transmission wheel (2413) coaxial therewith; a transversely extending guide groove is also provided on the driving frame (2411), a sliding block (2414) is provided in the guide groove, a tensioning wheel (2415) is provided on the sliding block (2414), a tension spring (2416) is provided between the sliding block (2414) and one end of the guide groove, and a conveyor belt is transmission-connected among the driving disk (229), the tensioning wheel (2415) and the transmission wheel (2413).

7. A method for uniform oiling of enameled wire production, characterized in that: A uniform oiling device for producing enameled wire according to any one of claims 1 to 2 comprises the following steps: Step 1, guiding the enameled wire to pass through the surface of the oil roller (12) and the oil wiping port in sequence; Step 2, the oil roller (12) rotates and applies oil to the surface of the enameled wire; Step 3, pre-adjusting the clamping force of the oil wiping port on the enameled wire, and wiping off excess oil from the enameled wire when the enameled wire passes through the two flexible oil wiping sleeves (23); Step 4: The extrusion wheel (25) abuts against the surface of the clamping wheel (21) to squeeze out the lubricating oil in the flexible oil wiping sleeve (23).

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