A painting device for a dedicated line
By combining the upper and lower rollers with the paint drip tube and brush tube design, the problems of paint waste and uneven coating in existing coating devices are solved, realizing efficient coating and paint recycling of the winding line, improving coating quality and ease of maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HUAYANG COPPER GRP
- Filing Date
- 2025-06-07
- Publication Date
- 2026-06-05
AI Technical Summary
Existing painting equipment suffers from serious paint waste and uneven coating, making it difficult to meet the high-quality painting requirements of precision coating scenarios such as machine winding.
The design employs an upper and lower roller combined with a paint drip tube and brush tube. Driven by a motor, it achieves precise delivery and uniform coating of paint. The dripping paint is collected in a collection box, and the quick-release assembly enables rapid replacement and cleaning of the paint box.
It enables precise coating and efficient recycling of paint, improves the stability of coating quality and paint utilization, and simplifies the maintenance process of paint boxes.
Smart Images

Figure CN224321711U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating technology for machine-wound special wires, and in particular to a coating device for machine-wound special wires. Background Technology
[0002] As a core component of electrical equipment such as motors and transformers, the insulation performance of machine-wound special wires directly affects the reliability and service life of the equipment. Currently, the insulation varnish coating process is a key link to ensure the insulation performance of the wires. However, traditional varnishing methods generally suffer from problems such as low efficiency and poor precision. With the development of electrical equipment towards high efficiency and miniaturization, higher requirements are placed on the wire varnishing process. In particular, the uniformity of the varnish film and the utilization rate of the varnish have become important factors restricting product quality. In the production process of machine-wound wires, due to the thin diameter of the wires and the strict requirements for the thickness of the varnish film, traditional varnishing methods often cannot achieve a stable and reliable coating effect. It is necessary to develop a special varnishing device that can accurately control the amount of varnish applied and improve the uniformity of the coating.
[0003] Currently, most common painting equipment adopts simple dipping or spraying methods with low technological maturity. Dipping usually relies solely on the cooperation of a paint tank and guide rollers to allow the wire to be immersed in the paint and then naturally carried out, lacking precise paint volume control. Spraying uses open nozzles, which easily cause paint mist to scatter, resulting in significant waste and pollution of the working environment. Although some improved equipment has introduced roller coating structures, the design is crude and the fit between the upper and lower rollers is not precise enough, leading to uneven coating. In addition, most existing equipment lacks an effective waste paint recovery system, and dripping paint is directly lost, causing resource waste. Overall, the existing technology is simple in structure and crude in control, making it difficult to meet the requirements of high-quality painting.
[0004] The most prominent problem with existing coating equipment is the serious waste of paint and poor coating uniformity. Due to the lack of precise paint delivery and coating mechanisms, traditional methods cannot ensure the uniform distribution of paint film on the wire surface, often resulting in local accumulation or missed coating. At the same time, dripping and splashing paint lacks effective recycling, which not only increases production costs but also causes environmental pollution. This problem is particularly evident in precision coating scenarios such as machine winding, seriously affecting the insulation performance of products and the quality of subsequent processing. A solution that can achieve precise coating and efficient recycling of excess paint is needed. Therefore, a coating device for machine winding is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a coating device for machine-wound wire, which aims to improve the problems of serious paint waste and uneven coating in the traditional coating device in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a coating device for machine-wound special wire, comprising a device body, a wire disposed inside the device body, a partition fixedly connected inside the device body, a fan disposed on the outer wall of the device body, and a coating component disposed inside the device body;
[0007] The painting assembly includes an upper roller, a lower roller, and a paint tank. The upper roller is rotatably connected inside the main body of the device, and the lower roller is rotatably connected inside the main body of the device. The paint tank is located on the top of the main body of the device. A motor is fixedly connected to the outer wall of the main body of the device, and the output end of the motor is fixedly connected to one end of the lower roller. Multiple grooves are formed on the outer walls of both the upper and lower rollers. Multiple paint drip tubes are provided at the bottom of the paint tank. A brush cylinder is fixedly connected to the outer wall of the partition, and the inner wall of the brush cylinder is in contact with the outer wall of the wire. A collection box is provided inside the main body of the device, and a quick-release assembly is provided on the top of the main body of the device.
[0008] As a further description of the above technical solution:
[0009] The quick-release assembly includes a fixing block and a locking block. The bottom of the fixing block is fixedly connected to the top of the main body of the device, and the side wall of the locking block is fixedly connected to the outer wall of the paint box.
[0010] As a further description of the above technical solution:
[0011] The fixing block has a slot inside, and the card block has a hole inside, and the card block and the slot engage with each other.
[0012] As a further description of the above technical solution:
[0013] A hollow column is fixedly connected inside the fixed block, and a sliding column is slidably connected inside the hollow column.
[0014] As a further description of the above technical solution:
[0015] A pull block is fixedly connected to one end of the sliding column, and a locking column is fixedly connected to the other end of the sliding column.
[0016] As a further description of the above technical solution:
[0017] The outer wall of the locking post is slidably connected to the inside of the hollow post, and the locking post and the locking hole are engaged.
[0018] As a further description of the above technical solution:
[0019] A limiting block is fixedly connected to the outer wall of the sliding column, and the outer wall of the limiting block is slidably connected inside the hollow column.
[0020] As a further description of the above technical solution:
[0021] A spring is provided on the outer wall of the sliding column. One end of the spring is fixedly connected to the outer wall of the limiting block, and the other end of the spring is fixedly connected to the inside of the hollow column.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the paint in the paint tank is precisely delivered to the groove of the upper roller through the paint dripping tube. The lower roller is driven by the motor to rotate the upper roller. The contact between the groove and the wire achieves uniform paint coating. Then, the excess paint on the surface of the wire is scraped off by the brush. The paint scraped off and dripped from the roller falls into the collection box, achieving the effect of precise paint coating and paint recycling to avoid waste. It solves the problems of serious paint waste and uneven paint coating in traditional paint coating devices, and improves the stability of paint coating quality and the paint recycling rate.
[0024] 2. In this utility model, by pulling the pull block, the pull block drives the sliding column, the limiting block and the locking column to squeeze the spring and move into the hollow column. At this time, the locking column is released from the restriction of the locking hole. Then, by pulling the paint box upward, it can be separated from the locking groove opened inside the fixing block, thereby achieving the effect of quickly disassembling the paint box. This solves the problem of fixed installation of paint boxes and difficulty in quick replacement or cleaning in the prior art, and improves the convenience of paint box maintenance. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a coating device for machine-wound special wire proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the main body of a painting device for machine-wound special wire proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of the fixing block of the painting device for machine-wound special wire proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the structure of the clamping block of the painting device for machine-wound special wire proposed in this utility model;
[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle.
[0030] Legend:
[0031] 1. Main body of the device; 2. Wire; 3. Partition plate; 4. Fan; 5. Upper roller; 6. Lower roller; 7. Groove; 8. Motor; 9. Paint box; 10. Paint dripping tube; 11. Collection box; 12. Brush tube; 13. Fixing block; 14. Slot; 15. Locking block; 16. Locking hole; 17. Hollow column; 18. Sliding column; 19. Locking column; 20. Limiting block; 21. Pulling block; 22. Spring. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figures 1-2 This utility model provides an embodiment of a coating device for machine-wound wire, comprising a main body 1, a wire 2 for conveying is disposed inside the main body 1, a partition 3 for separating the working area is fixedly connected inside the main body 1, a fan 4 for ventilation and heat dissipation is disposed on the outer wall of the main body 1, and a coating assembly for completing the coating process is disposed inside the main body 1; the coating assembly includes an upper roller 5, a lower roller 6, and a paint tank 9, the upper roller 5 is rotatably connected inside the main body 1 for contacting the wire 2 for coating, the lower roller 6 is rotatably connected inside the main body 1 for driving the wire 2 to move, and the paint tank 9 is disposed in the main body 1. The top is used to store insulating varnish. A motor 8 for providing power is fixedly connected to the outer wall of the main body 1. The output end of the motor 8 is fixedly connected to one end of the lower roller 6 to drive the lower roller 6 to rotate. Multiple grooves 7 for evenly distributing varnish are opened on the outer walls of the upper roller 5 and the lower roller 6. Multiple drip tubes 10 for precisely controlling the amount of varnish are set at the bottom of the varnish tank 9. A brush cylinder 12 for scraping off excess varnish is fixedly connected to the outer wall of the partition 3. The inner wall of the brush cylinder 12 is in contact with the outer wall of the wire 2 to ensure the varnish scraping effect. A collection box 11 for recycling excess varnish is set inside the main body 1. A quick-release assembly for easy maintenance is set on the top of the main body 1.
[0034] Reference Figures 3-5The quick-release assembly includes a fixing block 13 and a locking block 15. The bottom of the fixing block 13 is fixedly connected to the top of the main body 1 for support. The side wall of the locking block 15 is fixedly connected to the outer wall of the paint box 9 for connection. The fixing block 13 has a positioning groove 14 inside, and the locking block 15 has a locking hole 16 inside for locking. The locking block 15 and the groove 14 engage to achieve initial fixation. A hollow column 17, which serves as a guide structure, is fixedly connected inside the fixing block 13. A sliding column 18, which enables unlocking, is slidably connected inside the hollow column 17. One end of the sliding column 18 is fixedly connected to a device for easy operation. Pull block 21, the other end of sliding column 18 is fixedly connected to locking pin 19, the outer wall of locking pin 19 is slidably connected inside hollow column 17 to ensure smooth movement, locking pin 19 and locking hole 16 engage to complete locking, the outer wall of sliding column 18 is fixedly connected to limiting stroke limit block 20, the outer wall of limit block 20 is slidably connected inside hollow column 17 to ensure accuracy, the outer wall of sliding column 18 is provided with spring 22 to provide reset force, one end of spring 22 is fixedly connected to the outer wall of limit block 20, the other end of spring 22 is fixedly connected to hollow column 17 to form a complete elastic reset mechanism.
[0035] Working principle: When applying insulating varnish to machine-wound special wire, the motor 8 drives the lower roller 6 to rotate, which in turn drives the upper roller 5 to rotate synchronously through friction. The wire 2 to be coated passes between the upper roller 5 and the lower roller 6. The varnish in the groove 7 is evenly transferred to the surface of the wire 2. The special design of the groove 7 ensures uniform varnish distribution and avoids local accumulation or missed coating. After coating, the wire 2 continues to move to the brush cylinder 12, where the brush cylinder 12 scrapes off excess varnish from the surface of the wire 2, ensuring a consistent varnish film thickness. The scraped-off excess varnish and the varnish dripping from the rollers fall into the collection box 11, realizing the recycling of the varnish. At the same time, the device... The fan 4 installed on the outer wall of the main body 1 can accelerate the curing of the paint film and improve production efficiency. When it is necessary to replace or clean the paint box 9, the operator pulls the pull block 21 outward, which drives the sliding column 18 and the locking column 19 to move into the hollow column 17, so that the locking column 19 disengages from the locking hole 16 on the locking block 15. At this time, the spring 22 is compressed, and the limit block 20 ensures accurate movement. After unlocking, the locking block 15 can be removed from the locking groove 14 of the fixing block 13, realizing the quick disassembly of the paint box 9. During installation, simply insert the locking block 15 into the locking groove 14, release the pull block 21, and the restoring force of the spring 22 pushes the locking column 19 to re-lock into the locking hole 16, which improves maintenance efficiency.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A coating device for machine-wound special wire, comprising a device body (1), characterized in that: The device body (1) is provided with wires (2) inside, the device body (1) is fixedly connected with a partition (3) inside, the device body (1) is provided with a fan (4) on the outer wall, and the device body (1) is provided with a painting assembly inside; The painting assembly includes an upper roller (5), a lower roller (6), and a paint tank (9). The upper roller (5) is rotatably connected inside the main body (1) of the device. The lower roller (6) is rotatably connected inside the main body (1) of the device. The paint tank (9) is located on the top of the main body (1). A motor (8) is fixedly connected to the outer wall of the main body (1). The output end of the motor (8) is fixedly connected to one end of the lower roller (6). Multiple grooves (7) are provided on the outer walls of both the upper roller (5) and the lower roller (6). Multiple paint drip tubes (10) are provided at the bottom of the paint tank (9). A brush tube (12) is fixedly connected to the outer wall of the partition (3). The inner wall of the brush tube (12) is in contact with the outer wall of the wire (2). A collection box (11) is provided inside the main body (1). A quick-release assembly is provided on the top of the main body (1).
2. The coating device for machine-wound special wire according to claim 1, characterized in that: The quick-release assembly includes a fixing block (13) and a locking block (15). The bottom of the fixing block (13) is fixedly connected to the top of the main body (1) of the device, and the side wall of the locking block (15) is fixedly connected to the outer wall of the paint box (9).
3. The painting device for machine-wound special wire according to claim 2, characterized in that: The fixing block (13) has a slot (14) inside, and the card block (15) has a hole (16) inside. The card block (15) and the slot (14) engage with each other.
4. The painting device for machine-wound special wire according to claim 2, characterized in that: A hollow column (17) is fixedly connected inside the fixed block (13), and a sliding column (18) is slidably connected inside the hollow column (17).
5. The painting device for machine-wound special wire according to claim 4, characterized in that: One end of the sliding column (18) is fixedly connected to a pull block (21), and the other end of the sliding column (18) is fixedly connected to a locking column (19).
6. The painting device for machine-wound special wire according to claim 5, characterized in that: The outer wall of the locking post (19) is slidably connected to the inside of the hollow post (17), and the locking post (19) and the locking hole (16) are engaged.
7. The painting device for machine-wound special wire according to claim 4, characterized in that: The outer wall of the sliding column (18) is fixedly connected to a limiting block (20), and the outer wall of the limiting block (20) is slidably connected inside the hollow column (17).
8. The coating device for machine-wound special wire according to claim 7, characterized in that: A spring (22) is provided on the outer wall of the sliding column (18). One end of the spring (22) is fixedly connected to the outer wall of the limiting block (20), and the other end of the spring (22) is fixedly connected to the inside of the hollow column (17).