Uniform spraying equipment for surface coating of steel coil

By designing a combination structure of drive motor and bevel gear, uniform spraying of coating on the surface of steel coils is achieved, solving the problems of uneven coating and insufficient adaptability in existing equipment, and improving the equipment's versatility and production efficiency.

CN223931714UActive Publication Date: 2026-02-24ZHENGZHOU JIGUANG LIGHTWEIGHT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520424631.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-02-24
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

Existing uniform coating equipment for steel coils may result in coatings that are too thick or too thin in certain areas during the coating process, affecting the protective performance and appearance quality of the coating. Furthermore, the equipment lacks adaptability and cannot meet the needs of diverse steel coil products.

Method used

The design employs a structure including a drive motor, a fixed bevel gear, a rotating rod, a base, a nozzle, and a switching assembly. By reciprocating sliding and adjusting the nozzle angle, uniform coating is achieved. The relative position between the nozzle and the steel coil surface is kept constant by using clamping blocks and rollers to correct the steel coil.

Benefits of technology

It achieves uniformity and integrity of the coating, improves the versatility and applicability of the equipment, avoids coatings that are too thick, too thin, or have missed areas, and improves production efficiency and spraying effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of spraying equipment, and discloses steel coil surface coating uniform spraying equipment which comprises a protection box, a driving motor is fixedly connected to the inner wall of the protection box, a fixed bevel gear is fixedly arranged at the output end of the driving motor, and the outer wall of the fixed bevel gear is rotationally connected to the inner wall of the protection box. A first rotating rod is fixedly connected to the outer wall of the fixed bevel gear, a second rotating rod is rotatably connected to the outer wall of the first rotating rod, a second connecting rod is rotatably connected to the outer wall of the first connecting rod, the outer wall of the connecting bevel gear is rotatably connected to the inner wall of the protection box, and a switching assembly is arranged at the tooth end of the fixed bevel gear. The driving motor is started to enable the fixed bevel gear to push the first rotating rod to rotate, meanwhile, the second rotating rod pulls the base to slide on the outer wall of the connecting bevel gear in a reciprocating mode, the device flexibly adapts to steel coils of various sizes and shapes, and the effect of improving the universality and the application range of the device can be achieved.
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Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, and in particular to a uniform spraying equipment for coating the surface of steel coils. Background Technology

[0002] A steel coil is a cylindrical steel product made by rolling hot-rolled or cold-rolled steel plates into a cylindrical shape using specialized coiling equipment.

[0003] The uniform coating spraying equipment for steel coils can spray evenly to ensure consistent coating thickness, avoiding localized areas that are too thick or too thin. A uniform coating thickness provides stable and consistent protective performance, ensuring that different parts of the steel coil receive the same level of protection. This prevents premature corrosion and wear in certain areas due to uneven coating thickness, thereby extending the overall service life of the steel coil.

[0004] Existing uniform coating equipment for steel coils may have a single nozzle movement path during the coating process, resulting in some areas of the steel coil having an excessively thick coating while other areas have an excessively thin coating. This affects the overall protective performance and appearance quality of the coating. Furthermore, the equipment's adaptability is limited when dealing with diverse steel coil products, which may prevent it from meeting the needs of different customers. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a uniform coating spraying device for steel coil surfaces, which aims to solve the problem that existing uniform coating spraying devices for steel coil surfaces have excessively thick coatings in some areas and excessively thin coatings in other areas during the spraying process, affecting the overall protective performance and appearance quality of the coating. Furthermore, the adaptability of the equipment is limited when dealing with diverse steel coil products, which may result in the inability to meet the needs of different customers.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A uniform coating spraying device for steel coils includes a protective box. A drive motor is fixedly connected to the inner wall of the protective box. A fixed bevel gear is fixedly installed at the output end of the drive motor. The outer wall of the fixed bevel gear is rotatably connected to the inner wall of the protective box. A first rotating rod is fixedly connected to the outer wall of the fixed bevel gear. A second rotating rod is rotatably connected to the outer wall of the first rotating rod. A base is rotatably connected to the inner wall of the second rotating rod. The outer wall of the base is slidably connected to the inner wall of the protective box. A nozzle is rotatably connected to the inner wall of the nozzle. A limit ring is slidably connected to the outer wall of the limit ring. A first connecting rod is rotatably connected to the inner wall of the first connecting rod. A second connecting rod is rotatably connected to the outer wall of the first connecting rod. A connecting bevel gear is slidably connected to the outer wall of the second connecting rod. The outer wall of the connecting bevel gear is rotatably connected to the inner wall of the base. The outer wall of the connecting bevel gear is rotatably connected to the inner wall of the protective box. A switching component is provided at the tooth end of the fixed bevel gear.

[0008] Preferably, the switching component includes a drive bevel gear, the tooth end of which is meshed with the tooth end of a fixed bevel gear, and the outer wall of the drive bevel gear is rotatably connected to the inner wall of the protective box.

[0009] Preferably, the tooth end of the driving bevel gear is meshed with a sliding bevel gear, the outer wall of the sliding bevel gear is rotatably connected to a handle, the outer wall of the handle is slidably connected to the inner wall of the protective box, and the tooth end of the sliding bevel gear is meshed with the tooth end of the connecting bevel gear.

[0010] Preferably, a working platform is detachably installed on the inner wall of the protective box, a fixed motor is fixedly connected to the lower surface of the working platform, a rotating block is fixedly installed at the output end of the fixed motor, and the outer wall of the rotating block is rotatably connected to the inner wall of the working platform.

[0011] Preferably, the outer wall of the rotating block is rotatably connected to a push-pull rod.

[0012] Preferably, the inner wall of the push-pull rod is rotatably connected to a slide block, and the outer wall of the slide block is slidably connected to the inner wall of the work platform.

[0013] Preferably, a clamping block is fixedly connected to the upper surface of the slide block, and the outer wall of the clamping block is slidably connected to the inner wall of the work platform.

[0014] Preferably, the outer wall of the clamping block is fixedly connected to a fixing seat, and the inner wall of the clamping block is rotatably connected to a roller.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, starting the drive motor causes the fixed bevel gear to push the first rotating rod to rotate, while the second rotating rod pulls the base to slide back and forth on the outer wall of the connecting bevel gear. The base drives the nozzle to slide, and the first connecting rod drives the nozzle to swing. The nozzle can achieve reciprocating spraying of steel coils, avoiding blank areas in the spraying. Moreover, by adjusting parameters such as reciprocating stroke and speed, it can flexibly adapt to steel coils of various sizes and shapes, thereby improving the versatility and applicability of the equipment.

[0017] 2. In this utility model, the starting fixed motor drives the rotating block to rotate, and the rotating block will pull the push rod, which in turn pushes the slide to slide. The slide will drive the clamping block to slide. The set roller can correct the steel coil while facilitating feeding, so that the steel coil is always in the correct position of the spraying equipment, and the relative position between the nozzle and the surface of the steel coil is kept constant. This avoids the phenomenon of coating being too thick, too thin, or even missing spray due to steel coil deviation, and achieves the effect of maintaining the uniformity and integrity of the coating. Attached Figure Description

[0018] Figure 1 This is a perspective view of the uniform coating spraying device for steel coils proposed in this utility model;

[0019] Figure 2 This is a partial structural diagram of the protective box of the uniform coating spraying equipment for steel coil surfaces proposed in this utility model.

[0020] Figure 3 This is a partial structural diagram of the base of the uniform coating spraying equipment for steel coil surfaces proposed in this utility model;

[0021] Figure 4 This is a partial structural diagram of the nozzle of the uniform coating spraying device for steel coil surface proposed in this utility model.

[0022] Figure 5 This is a partial structural diagram of the fixing seat of the uniform coating spraying equipment for steel coils proposed in this utility model.

[0023] Legend:

[0024] 1. Protective box; 2. Drive motor; 3. Fixed bevel gear; 4. First rotating rod; 5. Second rotating rod; 6. Base; 7. Nozzle; 8. Limiting ring; 9. First connecting rod; 10. Second connecting rod; 11. Connecting bevel gear; 12. Sliding bevel gear; 13. Handle; 14. Drive bevel gear; 15. Working platform; 16. Fixed motor; 17. Rotary block; 18. Push-pull rod; 19. Slide; 20. Clamping block; 21. Fixed base; 22. Roller. Detailed Implementation

[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a uniform coating spraying device for steel coils, comprising a protective box 1, a drive motor 2 fixedly connected to the inner wall of the protective box 1, a fixed bevel gear 3 fixedly installed at the output end of the drive motor 2, the outer wall of the fixed bevel gear 3 rotatably connected to the inner wall of the protective box 1, a first rotating rod 4 fixedly connected to the outer wall of the fixed bevel gear 3, a second rotating rod 5 rotatably connected to the outer wall of the first rotating rod 4, a base 6 rotatably connected to the inner wall of the second rotating rod 5, the outer wall of the base 6 slidably connected to the inner wall of the protective box 1, a nozzle 7 rotatably connected to the inner wall of the nozzle 7, a limit ring 8 slidably connected to the outer wall of the limit ring 8, a first connecting rod 9 rotatably connected to the inner wall of the first connecting rod 9, a second connecting rod 10 rotatably connected to the outer wall of the second connecting rod 10, a connecting bevel gear 11 slidably connected to the outer wall of the second connecting rod 10, the outer wall of the connecting bevel gear 11 rotatably connected to the inner wall of the base 6, and the outer wall of the connecting bevel gear 11 rotatably connected to the inner wall of the protective box 1, and a switching component provided at the tooth end of the fixed bevel gear 3.

[0027] Specifically, the drive motor 2 is fixed to the inner wall of the protective box 1. Starting the drive motor 2 causes the fixed bevel gear 3 to rotate on the inner wall of the protective box 1, which in turn drives the first rotating rod 4 to rotate, preventing it from falling off. The first rotating rod 4 pulls the second rotating rod 5 to rotate, which in turn drives the base 6 to slide back and forth. The nozzle 7 slides on the inner wall of the base 6 and the limit ring 8. The base 6 slides on the outer wall of the connecting bevel gear 11, which rotates on the inner wall of the protective box 1, preventing the base 6 from shifting during sliding. The second connecting rod 10, which rotates on the inner wall of the connecting bevel gear 11, pulls the first connecting rod 9, which in turn pulls the limit ring 8, preventing it from falling off. The nozzle 7 can reciprocate to spray the steel coil, avoiding blank areas. Furthermore, by adjusting parameters such as the reciprocating stroke and speed, it can flexibly adapt to steel coils of various sizes and shapes, improving the equipment's versatility and applicability.

[0028] Reference Figure 2 and Figure 4The switching assembly includes a drive bevel gear 14, the tooth end of which is meshed with the tooth end of the fixed bevel gear 3, the outer wall of the drive bevel gear 14 is rotatably connected to the inner wall of the protective box 1, the tooth end of the drive bevel gear 14 is meshed with a sliding bevel gear 12, the outer wall of the sliding bevel gear 12 is rotatably connected with a handle 13, the outer wall of the handle 13 is slidably connected to the inner wall of the protective box 1, and the tooth end of the sliding bevel gear 12 is meshed with the tooth end of the connecting bevel gear 11.

[0029] Specifically, starting the drive motor 2 drives the fixed bevel gear 3 to rotate, and the fixed bevel gear 3 drives the drive bevel gear 14 to rotate on the inner wall of the protective box 1. When the handle 13 pulls the sliding bevel gear 12 to the tooth end of the drive bevel gear 14, the equipment can perform reciprocating spraying. After pulling the sliding bevel gear 12 to the tooth end of the connecting bevel gear 11, the connecting bevel gear 11 rotates and the second connecting rod 10 is pulled to adjust the angle of the nozzle 7. The drive bevel gear 14 can flexibly adjust the angle of the nozzle 7 according to the shape and size of the steel coil, plan a more efficient spraying path, reduce the travel distance and time of the spray gun, and achieve the effect of improving production efficiency.

[0030] Reference Figure 1 and Figure 5 The inner wall of the protective box 1 is detachably equipped with a work platform 15. A fixed motor 16 is fixedly connected to the lower surface of the work platform 15. A rotating block 17 is fixedly installed at the output end of the fixed motor 16. The outer wall of the rotating block 17 is rotatably connected to the inner wall of the work platform 15. A push-pull rod 18 is rotatably connected to the outer wall of the rotating block 17. A slide block 19 is rotatably connected to the inner wall of the push-pull rod 18. The outer wall of the slide block 19 is slidably connected to the inner wall of the work platform 15. A clamping block 20 is fixedly connected to the upper surface of the slide block 19. The outer wall of the clamping block 20 is slidably connected to the inner wall of the work platform 15. A fixed seat 21 is fixedly connected to the outer wall of the clamping block 20. A roller 22 is rotatably connected to the inner wall of the clamping block 20.

[0031] Specifically, after the working platform 15 is installed on the inner wall of the protective box 1, the fixed motor 16 is started to make the rotating block 17 push and pull the push rod 18, so that the push rod 18 drives the slide 19 to slide on the inner wall of the working platform 15, which can prevent the slide 19 from falling off. The sliding of the slide 19 drives the clamping block 20 to slide, and the outer wall of the clamping block 20 is fixedly connected to the fixed seat 21, which can achieve the effect of the clamping block 20 sliding stably on the inner wall of the working platform 15. The roller 22 rotating on the inner wall of the clamping block 20 can correct the steel coil while facilitating feeding, so that the steel coil is always in the correct position of the spraying equipment, and the relative position of the nozzle 7 and the surface of the steel coil remains constant, thereby avoiding the phenomenon of coating being too thick, too thin or even missed spraying due to steel coil deviation, and achieving the effect of maintaining the uniformity and integrity of the coating.

[0032] Working principle: When the equipment is needed, the working platform 15 is installed on the inner wall of the protective box 1. Then, the fixed motor 16 is started, causing the rotating block 17 to push and pull the push-pull rod 18. At the same time, the push-pull rod 18 drives the slide 19 to slide. The clamping block 20 fixed on the upper surface of the slide 19 slides on the inner wall of the working platform 15, achieving a stable correction effect. The roller 22 rotating on the inner wall of the clamping block 20 can achieve the feeding effect while correcting the deviation. After the steel coil is delivered to the appropriate position, the drive motor 2 is started, causing the fixed bevel gear 3 to rotate. This causes the first rotating rod 4 to pull the second rotating rod 5, while the base 6 slides on the inner wall of the protective box 1, achieving a stable reciprocating spraying effect. When the angle needs to be adjusted, the fixed bevel gear 3 drives the drive bevel gear 14 to rotate. Then, the sliding bevel gear 12 driven by the handle 13 is slid to the tooth end of the connecting bevel gear 11, achieving a quick switching effect. The rotation of the connecting bevel gear 11 will pull the second connecting rod 10, which will pull the first connecting rod 9, causing the limit ring 8 to slide up and down. The nozzle 7, which rotates on the inner wall of the base 6, slides on the inner wall of the limiting ring 8, thereby adjusting the angle of the nozzle 7. The nozzle 7 is designed to reciprocate and spray the steel coil, avoiding blank areas. Moreover, by adjusting parameters such as the reciprocating stroke and speed, it can flexibly adapt to steel coils of various sizes and shapes, thereby improving the versatility and applicability of the equipment. The drive bevel gear 14 can flexibly adjust the angle of the nozzle 7 according to the shape and size of the steel coil, planning a more efficient spraying path, reducing the travel distance and time of the spray gun, and improving production efficiency. The roller 22 can correct the steel coil and facilitate feeding, keeping the steel coil in the correct position of the spraying equipment. This keeps the relative position of the nozzle 7 and the surface of the steel coil constant, thereby avoiding the phenomenon of uneven coating thickness, thinness, or even missed spraying caused by steel coil deviation, and achieving the effect of maintaining coating uniformity and integrity. This equipment can not only achieve reciprocating spraying and angle adjustment, but also correct the steel coil and feed simultaneously.

[0033] 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 uniform coating spraying device for steel coils, including a protective box (1), characterized in that: A drive motor (2) is fixedly connected to the inner wall of the protective box (1). A fixed bevel gear (3) is fixedly installed at the output end of the drive motor (2). The outer wall of the fixed bevel gear (3) is rotatably connected to the inner wall of the protective box (1). A first rotating rod (4) is fixedly connected to the outer wall of the fixed bevel gear (3). A second rotating rod (5) is rotatably connected to the outer wall of the first rotating rod (4). A base (6) is rotatably connected to the inner wall of the second rotating rod (5). The outer wall of the base (6) is slidably connected to the inner wall of the protective box (1). The inner wall of the base (6) rotates. A nozzle (7) is connected, and a limit ring (8) is slidably connected to the outer wall of the nozzle (7). A first connecting rod (9) is rotatably connected to the inner wall of the limit ring (8). A second connecting rod (10) is rotatably connected to the outer wall of the first connecting rod (9). A connecting bevel gear (11) is slidably connected to the outer wall of the second connecting rod (10). The outer wall of the connecting bevel gear (11) is rotatably connected to the inner wall of the base (6). The outer wall of the connecting bevel gear (11) is rotatably connected to the inner wall of the protective box (1). A switching component is provided at the tooth end of the fixed bevel gear (3).

2. The uniform coating spraying equipment for steel coil surface according to claim 1, characterized in that: The switching assembly includes a drive bevel gear (14), the tooth end of which is meshed with the tooth end of a fixed bevel gear (3), and the outer wall of the drive bevel gear (14) is rotatably connected to the inner wall of the protective box (1).

3. The uniform coating spraying equipment for steel coil surface according to claim 2, characterized in that: The tooth end of the driving bevel gear (14) is meshed with a sliding bevel gear (12), and the outer wall of the sliding bevel gear (12) is rotatably connected with a handle (13). The outer wall of the handle (13) is slidably connected to the inner wall of the protective box (1), and the tooth end of the sliding bevel gear (12) is meshed with the tooth end of the connecting bevel gear (11).

4. The uniform coating spraying equipment for steel coil surface according to claim 3, characterized in that: The inner wall of the protective box (1) is detachably equipped with a working platform (15). A fixed motor (16) is fixedly connected to the lower surface of the working platform (15). A rotating block (17) is fixedly installed at the output end of the fixed motor (16). The outer wall of the rotating block (17) is rotatably connected to the inner wall of the working platform (15).

5. The uniform coating spraying equipment for steel coils according to claim 4, characterized in that: The outer wall of the rotating block (17) is rotatably connected to a push-pull rod (18).

6. The uniform coating spraying equipment for steel coil surface according to claim 5, characterized in that: The inner wall of the push-pull rod (18) is rotatably connected to a slide (19), and the outer wall of the slide (19) is slidably connected to the inner wall of the work platform (15).

7. The uniform coating spraying equipment for steel coil surface according to claim 6, characterized in that: A clamping block (20) is fixedly connected to the upper surface of the slide (19), and the outer wall of the clamping block (20) is slidably connected to the inner wall of the work platform (15).

8. The uniform coating spraying equipment for steel coil surface according to claim 7, characterized in that: The outer wall of the clamping block (20) is fixedly connected to a fixing seat (21), and the inner wall of the clamping block (20) is rotatably connected to a roller (22).