Environment-friendly water-based insulating paint spraying equipment for coil
By installing a protective cover and heating device inside the spraying box, the problem of paint dripping after coil insulation varnish spraying is solved, achieving environmentally friendly spraying and rapid drying, thus improving environmental friendliness and operational safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU RENTONG ENERGY SAVING TECH CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-28
AI Technical Summary
The insulating varnish on the coil surface cannot solidify or dry quickly after spraying, causing the varnish to drip, resulting in material waste and environmental pollution, and poor environmental performance.
The coating chamber is equipped with a protective cover and a heating device. The coil surface is heated and dried immediately after coating. The hot air is blown by a fan to prevent paint from dripping and improve environmental friendliness.
It effectively prevents insulating paint from scattering during the spraying process, reduces environmental pollution, and ensures the paint dries after spraying, thus improving environmental friendliness and practicality.
Smart Images

Figure CN224167812U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coil insulation technology, specifically relating to an environmentally friendly water-based insulating paint spraying device for coils. Background Technology
[0002] Coil insulation refers to wrapping one or more layers of material with good insulating properties around the conductor of a coil to prevent current leakage, avoid short circuit faults, ensure electrical safety, and improve the stability and reliability of the coil.
[0003] Chinese Patent Publication No. CN218902372U discloses an insulating varnish spraying device for producing electromagnetic wires. The device includes a base, a paint tank, a first nozzle, a second nozzle, and two conveying hoses. A first cylinder is fixedly installed inside the base. A limit rod is fixedly connected to the output end of the first cylinder and extends beyond the upper surface of the base. Multiple first nozzles are fixedly installed on the outer wall of the limit rod. A turntable is fixedly installed on the upper surface of the base, outside one end of the limit rod. A motor is fixedly installed inside the base, next to the first cylinder. A gear is fixedly connected to the output end of the motor and extends beyond the upper surface of the base. An arc-shaped plate is fixedly installed on the upper surface of the base, outside the limit rod. The outer wall of the turntable has toothed grooves that mesh with the toothed grooves on the outer wall of the gear. This utility model uses the first and second nozzles to simultaneously spray the electromagnetic coil from both inside and out, effectively improving spraying efficiency.
[0004] However, when the coil is coated, the insulating varnish on the surface of the coil cannot solidify or dry in a short time. Therefore, during the removal process after coating, the insulating varnish on the surface of the coil may drip onto the outside due to gravity. This not only wastes materials but also damages the surrounding environment, resulting in poor environmental performance. Utility Model Content
[0005] The purpose of this invention is to provide an environmentally friendly water-based insulating varnish spraying device for coils, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly water-based insulating paint spraying device for coils, comprising a spraying box, a placement groove on the front of the spraying box, a clamp fixedly installed at the bottom inside the placement groove, a protective structure installed at the top inside the placement groove, the protective structure including a lifting rod fixedly connected to the top inside the placement groove, a protective cover fixedly connected to the lifting end of the lifting rod, a spray nozzle fixedly connected to the side surface inside the protective cover, an air outlet groove on the top inside the protective cover, a resistance wire fixedly connected inside the air outlet groove, a fan fixedly connected inside the air outlet groove, and a ventilation groove on the back of the spraying box.
[0007] In a preferred embodiment, the clamping plate includes a support platform, an auxiliary plate is fixedly connected to the top of the support platform, and an auxiliary groove is provided inside the auxiliary plate.
[0008] In a preferred embodiment, a movable plate is slidably connected to the top of the support platform, and a positioning groove is provided on the side of the movable plate closer to the auxiliary plate. An auxiliary block is fixedly connected below the positioning groove and on the side surface of the movable plate.
[0009] In a preferred embodiment, a storage tank is provided in the upper part of the spraying box, a liquid filling pipe is fixedly connected to the top of the storage tank, and a water pump is fixedly installed at the bottom of the storage tank.
[0010] In a preferred embodiment, a return pipe is fixedly connected to the side surface inside the storage tank, and a liquid storage tank is fixedly installed in the lower part inside the spraying box, with the top of the liquid storage tank connected to the placement tank.
[0011] In a preferred embodiment, a second water pump is fixedly connected to the bottom of the liquid storage tank, a heat dissipation groove is provided on the back of the spraying box, and a support column is fixedly connected to the bottom of the spraying box.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention involves activating a lifting rod, which lowers a protective cover around the coil. A water pump draws water-based insulating varnish from the storage tank via its input end and sprays it onto the coil surface via its output nozzle. After spraying, the resistance wire is heated, and a fan is activated to blow hot air onto the coil surface, drying the coating. This design not only protects the coil during spraying to prevent the insulating varnish from scattering and polluting the environment, but also heats and dries the coil after spraying, effectively preventing the insulating varnish from dripping during subsequent transfer. This significantly improves both environmental friendliness and practicality.
[0014] This invention involves inserting both ends of the coil into the positioning groove, then activating the push rod to move the moving plate towards the auxiliary plate until the auxiliary block on the side of the moving plate is inserted into the auxiliary groove, thus stopping the process and fixing the coil. This effectively improves the safety and stability of the coil placement and facilitates subsequent spraying operations. Attached Figure Description
[0015] Figure 1 This is a three-dimensional front view of the overall structure of this utility model;
[0016] Figure 2 This is a three-dimensional back view of the overall structure of this utility model;
[0017] Figure 3 This is a three-dimensional cross-sectional view of the back of the spray box body of this utility model;
[0018] Figure 4 This is a three-dimensional schematic diagram of the protective cover and other components of the present utility model.
[0019] Figure 5 This is a three-dimensional cross-sectional view of the bottom of the spray box body of this utility model.
[0020] Figure 6 The structure of this utility model Figure 5 Enlarged 3D diagram showing details at point A.
[0021] In the diagram: 1. Spraying box; 2. Placement slot; 3. Clamping plate; 4. Storage tank; 5. Liquid filling pipe; 6. Water pump one; 7. Return pipe; 8. Liquid storage tank; 9. Water pump two; 10. Heat dissipation slot; 11. Support column; 21. Lifting rod; 22. Protective cover; 23. Spray nozzle; 24. Air outlet slot; 25. Resistance wire; 26. Fan; 27. Ventilation slot; 31. Support platform; 32. Auxiliary plate; 33. Auxiliary slot; 34. Moving plate; 35. Positioning slot; 36. Auxiliary block. Detailed Implementation
[0022] The present invention will be further described below with reference to the embodiments.
[0023] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.
[0024] Please see Figure 1-6 This utility model provides an environmentally friendly water-based insulating paint spraying device for coils, including a spraying box 1. The front of the spraying box 1 is provided with a placement groove 2. A clamping plate 3 is fixedly installed at the bottom inside the placement groove 2. A protective structure is installed at the top inside the placement groove 2. The protective structure includes a lifting rod 21 fixedly connected to the top inside the placement groove 2. A protective cover 22 is fixedly connected to the lifting end of the lifting rod 21. A spray nozzle 23 is fixedly connected to the side surface inside the protective cover 22. An air outlet groove 24 is provided at the top inside the protective cover 22. A resistance wire 25 is fixedly connected inside the air outlet groove 24. A fan 26 is fixedly connected inside the air outlet groove 24. A ventilation groove 27 is provided on the back of the spraying box 1.
[0025] The nozzle 23 is connected to the output end of the water pump 6. The nozzle 23 is installed at a 45° angle inside the protective cover 22. First, the coil is fixed inside the clamping plate 3. Then, the lifting rod 21 is activated, causing the lifting end of the lifting rod 21 to lower the protective cover 22 and cover the coil. Subsequently, the water pump 6 extracts water-based insulating paint from the storage tank 4 through the input end, and then sprays the coil surface through the nozzle 23 at the output end. After the spraying is completed, the resistance wire 25 is heated, and the fan 26 is started to blow hot air onto the coil surface, thereby drying the coating on the coil surface, thus avoiding paint dripping and pollution of the working environment, and effectively improving environmental protection.
[0026] Specifically, such as Figure 5 and Figure 6 As shown, the clamping plate 3 includes a support platform 31, and an auxiliary plate 32 is fixedly connected to the top of the support platform 31. An auxiliary groove 33 is provided inside the auxiliary plate 32.
[0027] A movable plate 34 is slidably connected to the top of the support platform 31. A positioning groove 35 is provided on the side of the movable plate 34 that is closer to the auxiliary plate 32. An auxiliary block 36 is fixedly connected below the positioning groove 35 and on the side surface of the movable plate 34.
[0028] The movable plate 34 has a push rod installed on one side of the auxiliary plate 32. During use, the operator first inserts both ends of the coil into the positioning groove 35, and then starts the push rod to move the movable plate 34 toward the auxiliary plate 32 until the auxiliary block 36 on the side of the movable plate 34 is inserted into the auxiliary groove 33, which completes the fixation of the coil. This effectively improves the safety and stability of the coil placement and facilitates the subsequent spraying operation.
[0029] Specifically, such as Figure 3 As shown, a storage tank 4 is provided in the upper part of the inside of the spraying box 1. A liquid filling pipe 5 is fixedly connected to the top of the inside of the storage tank 4, and a water pump 6 is fixedly installed at the bottom of the inside of the storage tank 4.
[0030] Staff can use external equipment to connect to the device through the liquid filling pipe 5, so that the water-based insulating paint of the external equipment can be poured into the storage tank 4.
[0031] Specifically, such as Figure 3 As shown, a return pipe 7 is fixedly connected to the side surface inside the storage tank 4, and a liquid storage tank 8 is fixedly installed in the lower part inside the spray box 1. The top of the liquid storage tank 8 is connected to the placement tank 2.
[0032] A water pump 9 is fixedly connected to the bottom of the liquid storage tank 8, a heat dissipation groove 10 is provided on the back of the spraying box 1, and a support column 11 is fixedly connected to the bottom of the spraying box 1.
[0033] The output end of the second water pump 9 is connected to the return pipe 7; excess insulating varnish will flow into the storage tank 8 through the bottom of the placement tank 2, and then be pumped out by the second water pump 9, so that the insulating varnish inside the storage tank 8 is discharged back into the storage tank 4 through the return pipe 7.
[0034] The working principle and usage process of this utility model: During use, the staff first places the device in a suitable position and connects it to other equipment through the liquid addition pipe 5, so that the other equipment can transport the processed insulating varnish into the storage tank 4.
[0035] First, insert both ends of the coil into the positioning slots 35, and then start the push rod to move the moving plate 34 towards the auxiliary plate 32 until the auxiliary block 36 on the side of the moving plate 34 is inserted into the auxiliary slot 33. This completes the process and fixes the coil.
[0036] Then, the lifting rod 21 is activated, causing the lifting end of the lifting rod 21 to lower the protective cover 22 and cover the coil. The water pump 6 extracts water-based insulating varnish from the storage tank 4 through the input end, and then sprays it onto the coil surface through the nozzle 23 at the output end. After the spraying is completed, the resistance wire 25 is heated, and the fan 26 is started to blow hot air onto the coil surface, thereby drying the coating on the coil surface. This not only protects the coil from the spread of insulating varnish during the spraying process, preventing environmental pollution, but also heats and dries the coil after the spraying is completed, effectively preventing the insulating varnish from dripping during the subsequent transfer process, thus effectively improving environmental protection and practicality.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An environmentally friendly water-based insulating varnish spraying device for coils, comprising a spraying box (1), characterized in that: The front of the spray box (1) is provided with a placement slot (2). A clamp (3) is fixedly installed at the bottom inside the placement slot (2). A protective structure is installed at the top inside the placement slot (2). The protective structure includes a lifting rod (21) fixedly connected to the top inside the placement slot (2). A protective cover (22) is fixedly connected to the lifting end of the lifting rod (21). A spray nozzle (23) is fixedly connected to the side surface inside the protective cover (22). An air outlet slot (24) is provided at the top inside the protective cover (22). A resistance wire (25) is fixedly connected inside the air outlet slot (24). A fan (26) is fixedly connected inside the air outlet slot (24). A ventilation slot (27) is provided on the back of the spray box (1).
2. The environmentally friendly water-based insulating varnish spraying equipment for coils according to claim 1, characterized in that: The clamp (3) includes a support platform (31), and an auxiliary plate (32) is fixedly connected to the top of the support platform (31). An auxiliary groove (33) is provided inside the auxiliary plate (32).
3. The environmentally friendly water-based insulating varnish spraying equipment for coils according to claim 2, characterized in that: A movable plate (34) is slidably connected to the top of the support platform (31). A positioning groove (35) is provided on the side of the movable plate (34) that is closer to the auxiliary plate (32). An auxiliary block (36) is fixedly connected below the positioning groove (35) and on the side surface of the movable plate (34).
4. The environmentally friendly water-based insulating varnish spraying equipment for coils according to claim 1, characterized in that: The upper part of the spray box (1) is provided with a storage tank (4), the top of the storage tank (4) is fixedly connected with a liquid filling pipe (5), and a water pump (6) is fixedly installed at the bottom of the storage tank (4).
5. The environmentally friendly water-based insulating varnish spraying equipment for coils according to claim 4, characterized in that: The side surface inside the storage tank (4) is fixedly connected to a return pipe (7), and the lower part inside the spray box (1) is fixedly installed with a liquid storage tank (8). The top of the liquid storage tank (8) is connected to the placement tank (2).
6. The environmentally friendly water-based insulating varnish spraying equipment for coils according to claim 5, characterized in that: The bottom of the liquid storage tank (8) is fixedly connected to a water pump (9), the back of the spray box (1) is provided with a heat dissipation groove (10), and the bottom of the spray box (1) is fixedly connected to a support column (11).
Citation Information
Patent Citations
Insulating paint spraying device for electromagnetic wire production
CN218902372U