A kind of enamelled wire on-line production coating device
By introducing an oiling unit, a uniform distribution unit, and a drying unit into the coating device, the circulation and uniform application of lubricating oil are achieved, solving the problem of uneven lubricating oil distribution and improving the production quality of enameled wire.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUZHOU YONGXIN ELECTROMAGNETIC WIRE CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-23
AI Technical Summary
In traditional coating equipment, lubricating oil tends to settle unevenly, leading to unstable lubrication and affecting the coating quality of enameled wires.
Design a coating device including an oiling unit, a uniform distribution unit, and a drying unit. The enameled wire achieves the circulation of lubricating oil through an oil absorption medium and a pump inside the housing. Combined with a uniform distribution ring and a uniform distribution brush, a uniform film layer is formed, and the stability of the lubricating oil is ensured by the drying unit.
This ensures the long-term stable use of lubricating oil, guarantees the uniformity and stability of lubrication, and improves the production quality of enameled wire.
Smart Images

Figure CN224400141U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of enameled wire preparation technology, and in particular to a coating device for online production of enameled wire. Background Technology
[0002] Enameled wire consists of two parts: a conductor and an insulation layer. It is made by annealing and softening bare wire, followed by multiple coatings and baking. However, producing products that meet both standard requirements and customer needs is not easy. It is affected by factors such as the quality of raw materials, process parameters, production equipment, and environment. Therefore, the quality characteristics of various enameled wires are different, but they all possess four major properties: mechanical properties, chemical properties, electrical properties, and thermal properties.
[0003] In order to reduce friction and protect the insulation layer of the enameled wire during the winding process, the enameled wire is coated with lubricating oil after the insulating varnish is applied. The traditional coating process involves immersing the coating roller in lubricating oil and threading the enameled wire through the corresponding groove of the coating roller. When the coating roller rotates, the lubricating oil is applied to the enameled wire.
[0004] When the lubricating oil in the oil reservoir or tank decreases, staff will replenish it periodically to prevent insufficient lubricating oil from causing incomplete coating. Since the lubricating oil is static, over time it will become uneven and its content will be unstable, resulting in an uneven lubricating film formed on the enameled wire and affecting the lubrication effect. Utility Model Content
[0005] The purpose of this invention is to provide a coating device for online production of enameled wire. This invention has the advantage of providing more stable lubricating oil over long-term use without affecting lubrication performance.
[0006] The technical solution of this utility model is as follows: A coating device for online production of enameled wire includes a housing and an enameled wire passing through the housing; the housing has an oiling unit on the left, a uniform distribution unit in the middle, and a drying unit on the right; the housing has an inlet on the left and an outlet on the right; the oiling unit includes an oiling chamber at the top, an oil storage tank below the oiling chamber, an oil absorption medium in the oiling chamber, and a pump connected to the oil absorption medium via an oil delivery pipe in the oil storage tank; an oil outlet pipe connected to the oil absorption medium is located above the oiling chamber, and multiple evenly distributed oil outlets inserted into the oil absorption medium are located below the oil outlet pipe; the enameled wire passes through the oil absorption medium; a return oil pipe connected to the oil storage tank is located in the middle of the lower part of the oiling chamber, and an oil injection pipe is connected to one side of the oil storage tank.
[0007] In the aforementioned coating device for online production of enameled wire, the uniform distribution unit includes a vertical plate, a drive motor located on the left side of the vertical plate, and a uniform distribution ring located on the right side of the vertical plate; the output shaft of the drive motor is provided with a drive wheel located on the right side of the vertical plate, and the drive wheel is linked to the uniform distribution ring below via a belt; a uniform distribution brush is sleeved in the middle of the uniform distribution ring, and the enameled wire passes horizontally through the middle of the uniform distribution brush; the vertical plate is rotatably connected to the uniform distribution ring via a pair of evenly distributed support rods; an annular groove is provided on the left side of the uniform distribution ring, and the support rods are correspondingly slidably sleeved in the annular groove.
[0008] In the aforementioned coating device for online production of enameled wire, the uniform distribution brush and the uniform distribution ring are detachably connected, and the uniform distribution brush has multiple different specifications according to different inner diameters.
[0009] In the aforementioned coating apparatus for online production of enameled wire, the drying unit includes a drying chamber, multiple guide rollers distributed within the drying chamber, an electric heating grid located at the bottom of the drying chamber, and an air inlet unit connected to the bottom of the drying chamber; the multiple guide rollers constitute the drying wire diameter; and a drying plate located above the enameled wire is provided inside the drying chamber.
[0010] In the aforementioned coating device for online production of enameled wire, the air intake unit includes an air intake pipe and an air intake pump connected to the air intake pipe; the air intake end of the air intake pump is connected to the air intake pipe, and the air outlet end is connected to the bottom of the drying chamber; a removable dustproof net is fitted on the air intake pipe.
[0011] In the aforementioned coating device for online production of enameled wire, the housing is provided with an exhaust unit connected to the drying chamber; the exhaust unit includes an exhaust pump located on the upper right side of the housing, an air supply pipe connecting the exhaust pump to the upper right side of the drying chamber, and an exhaust pipe connecting the exhaust pump to the exhaust gas purification device.
[0012] In the aforementioned coating device for online production of enameled wire, an oil collection tank is provided between the drying unit and the oil storage tank, and an oil drain pipe passing through the tank body is provided at the bottom of the oil collection tank.
[0013] Compared with the prior art, this application sets up an oiling unit, a uniform distribution unit and a drying unit inside the box. The enameled wire enters from one side of the box and passes through each unit in sequence to apply lubricating oil, distribute it evenly and dry it, and then exits from the other side to enter the next process.
[0014] The oiling unit includes an upper oiling chamber, a lower oil storage tank, and an oil-absorbing medium in the oiling chamber. The enameled wire passes through the oil-absorbing medium and is coated by the oil-absorbing medium. The oil storage tank is equipped with a pump and injects oil into the oil-absorbing medium from above through an oil delivery pipe. The dripping lubricating oil is returned to the oil storage tank through a return oil pipe connected to the oil storage tank below the oiling chamber.
[0015] By using this application, the lubricating oil circulates between the oil reservoir and the oil supply chamber, and will not remain in a static state for a long time, thus effectively preventing the problem of uneven or unstable static distribution.
[0016] Therefore, this invention has the advantage that the lubricating oil is more stable over long-term use and does not affect the lubrication effect. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the oil-absorbing medium of this utility model.
[0019] The labels in the attached diagram are as follows: 1-box body, 11-inlet, 12-outlet, 13-vertical plate, 21-oil storage tank, 22-oil injection pipe, 23-oil delivery pipe, 3-oil chamber, 31-oil suction medium, 32-oil outlet pipe, 33-oil discharge port, 34-oil return pipe, 35-air outlet plate, 41-drive motor, 42-drive wheel, 43-belt, 5-uniform distribution ring, 51-uniform distribution brush, 52-support rod, 6-drying chamber, 61-guide roller, 62-electric heating grid, 63-drying plate, 7-air intake pump, 71-air intake pipe, 8-exhaust pump, 81-air delivery pipe, 82-exhaust pipe, 9-enameled wire. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.
[0021] Example. A coating apparatus for in-line production of enameled wire, such as... Figure 1 As shown, it includes a housing 1 and an enameled wire 9 threaded inside the housing 1; the housing 1 has an oiling unit on the left, a uniform distribution unit in the middle, and a drying unit on the right; the housing 1 has an inlet 11 on the left and an outlet 12 on the right; the oiling unit includes an oiling chamber 3 at the top, an oil storage tank 21 below the oiling chamber 3, an oil-absorbing medium 31 in the oiling chamber 3, and a pump connected to the oil-absorbing medium 31 in the oil storage tank 21 via an oil delivery pipe 23; an oil outlet pipe 32 connected to the oil-absorbing medium 31 is located above the oiling chamber 3, and multiple evenly distributed oil outlets 33 inserted into the oil-absorbing medium 31 are located below the oil outlet pipe 32; as shown Figure 2 The enameled wire 9 passes through the oil absorption medium 31; the oil return pipe 34 connected to the oil storage tank 21 is provided in the middle of the lower part of the oil chamber 3, and the oil storage tank 21 is connected to the oil injection pipe 22 on one side.
[0022] The oil-absorbing medium 31 can be any common oil-absorbing felt or oil-absorbing sponge used for applying lubricating oil.
[0023] The oil storage tank 21 is equipped with a controller and a liquid level sensor. The liquid level sensor monitors the liquid level of the lubricating oil in the oil storage tank 21 in real time. When the liquid level reaches the warning level, it sends a signal to the controller. The controller issues a warning and controls or notifies the staff to replenish the lubricating oil. The pump is also connected to the controller. The pump works at certain intervals according to the staff's preset intervals to pump out the lubricating oil, ensuring that the oil suction medium 31 is rich in lubricating oil while circulating the lubricating oil to prevent it from standing still for a long time.
[0024] The uniform distribution unit includes a vertical plate 13, a drive motor 41 located on the left side of the vertical plate 13, and a uniform distribution ring 5 located on the right side of the vertical plate 13. The output shaft of the drive motor 41 is provided with a drive wheel 42 located on the right side of the vertical plate 13. The drive wheel 42 is linked to the uniform distribution ring 5 below via a belt 43. A uniform distribution brush 51 is sleeved in the middle of the uniform distribution ring 5, and an enameled wire 9 passes horizontally through the middle of the uniform distribution brush 51. The vertical plate 13 is rotatably connected to the uniform distribution ring 5 via a pair of evenly distributed support rods 52. An annular groove is provided on the left side of the uniform distribution ring 5, and the support rods 52 are correspondingly slidably sleeved in the annular groove.
[0025] By setting up a uniform distribution ring 5 and a uniform distribution brush 51, the lubricating oil on the enameled wire 9 is applied in a circular motion using the uniform distribution brush 51, thereby ensuring that the formed film layer is uniform. The uniform distribution ring 5 and the uniform distribution brush 51 can be common rotating cylinders and lubricating oil brushes available on the market.
[0026] The uniformly distributed brush 51 is detachably connected to the uniformly distributed ring 5, and the uniformly distributed brush 51 has multiple different specifications according to different inner diameters.
[0027] The drying unit includes a drying chamber 6, multiple guide rollers 61 distributed within the drying chamber 6, an electric heating grid 62 located at the bottom of the drying chamber 6, and an air intake unit connected to the bottom of the drying chamber 6; the multiple guide rollers 61 constitute the drying wire diameter; a drying plate 53 located above the enameled wire 9 is provided inside the drying chamber 6.
[0028] The air intake unit includes an air intake pipe 71 and an air intake pump 7 connected to the air intake pipe 71; the air intake end of the air intake pump 7 is connected to the air intake pipe 71, and the air outlet end is connected to the bottom of the drying chamber 6; a removable dustproof net is fitted on the air intake pipe 71.
[0029] The housing 1 is equipped with an exhaust unit connected to the drying chamber 6; the exhaust unit includes an exhaust pump 8 located on the upper right side of the housing 1, an air supply pipe 81 connecting the exhaust pump 8 to the upper right side of the drying chamber 6, and an exhaust pipe 82 connecting the exhaust pump 8 to the exhaust gas purification device.
[0030] An oil collection trough is provided between the drying unit and the oil storage tank 21. An oil drain pipe is provided at the bottom of the oil collection trough, passing through the tank body 1. A waste drain pipe is provided at the bottom of the oil storage tank 21, which is connected to the outside of the tank body 1. Both the oil drain pipe and the waste drain pipe are equipped with switch valves for draining the lubricating oil for cleaning.
Claims
1. A coating apparatus for online production of enameled wire, characterized in that: The system includes a housing (1) and an enameled wire (9) threaded inside the housing (1); the housing (1) has an oiling unit on the left, a distribution unit in the middle, and a drying unit on the right; the housing (1) has an inlet (11) on the left and an outlet (12) on the right; the oiling unit includes an oiling chamber (3) located above, an oil storage tank (21) located below the oiling chamber (3), an oil-absorbing medium (31) located in the oiling chamber (3), and a conveyor belt located in the oil storage tank (21). The oil pipe (23) is connected to the oil suction medium (31) by a pump; an oil outlet pipe (32) connected to the oil suction medium (31) is provided above the oil chamber (3), and multiple oil outlets (33) are evenly distributed and inserted into the oil suction medium (31) below the oil outlet pipe (32); the enameled wire (9) passes through the oil suction medium (31); a return oil pipe (34) connected to the oil storage tank (21) is provided in the middle of the lower part of the oil chamber (3), and an oil injection pipe (22) is connected to one side of the oil storage tank (21).
2. The coating apparatus for online production of enameled wire according to claim 1, characterized in that: The uniform distribution unit includes a vertical plate (13), a drive motor (41) located on the left side of the vertical plate (13), and a uniform distribution ring (5) located on the right side of the vertical plate (13). The output shaft of the drive motor (41) is provided with a drive wheel (42) located on the right side of the vertical plate (13). The drive wheel (42) is linked to the uniform distribution ring (5) below via a belt (43). A uniform distribution brush (51) is sleeved in the middle of the uniform distribution ring (5), and an enameled wire (9) passes horizontally through the middle of the uniform distribution brush (51). The vertical plate (13) is rotatably connected to the uniform distribution ring (5) via a pair of evenly distributed support rods (52). An annular groove is provided on the left side of the uniform distribution ring (5), and the support rods (52) are correspondingly slidably sleeved in the annular groove.
3. The coating apparatus for online production of enameled wire according to claim 2, characterized in that: The uniformly distributed brush (51) is detachably connected to the uniformly distributed ring (5), and the uniformly distributed brush (51) has multiple different specifications according to different inner diameters.
4. The coating apparatus for online production of enameled wire according to claim 1, characterized in that: The drying unit includes a drying chamber (6), multiple guide rollers (61) distributed in the drying chamber (6), an electric heating grid (62) located at the bottom of the drying chamber (6), and an air inlet unit connected to the bottom of the drying chamber (6); the multiple guide rollers (61) constitute the drying wire diameter; a drying plate (53) located above the enameled wire (9) is provided inside the drying chamber (6).
5. A coating apparatus for online production of enameled wire according to claim 4, characterized in that: The air intake unit includes an air intake pipe (71) and an air intake pump (7) connected to the air intake pipe (71); the air intake end of the air intake pump (7) is connected to the air intake pipe (71), and the air outlet end is connected to the bottom of the drying chamber (6); a removable dustproof net is fitted on the air intake pipe (71).
6. The coating apparatus for online production of enameled wire according to claim 4, characterized in that: The housing (1) is provided with an exhaust unit connected to the drying chamber (6); the exhaust unit includes an exhaust pump (8) located on the upper right side of the housing (1), an air supply pipe (81) connecting the exhaust pump (8) to the upper right side of the drying chamber (6), and an exhaust pipe (82) connecting the exhaust pump (8) to the exhaust gas purification device.
7. The coating apparatus for online production of enameled wire according to claim 1, characterized in that: An oil collection trough is provided between the drying unit and the oil storage tank (21), and an oil drain pipe passing through the box body (1) is provided at the bottom of the oil collection trough.