Railway embedded part anti-rust coating coating device
By controlling the temperature of railway embedded parts within the range of 15℃-25℃ during spraying, the problem of insufficient coating adhesion was solved, achieving uniformity and firmness of the coating, improving rust prevention and reducing energy consumption.
Patent Information
- Application Number
- CN202520242662.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Railway embedded parts are prone to corrosion during use. Existing coatings have insufficient adhesion, resulting in defects such as sagging and dripping, which affect the protective performance of the coating.
The temperature of the railway embedded parts is controlled within the range of 15℃-25℃ by a cooling device. The temperature is monitored by an infrared thermometer and the spray nozzle is activated for spraying. Combined with the design of sealing plate, heat conduction plate and heat insulation chamber, the viscosity of the coating and the spraying effect are ensured.
It improves the adhesion of coatings to the surface of railway embedded parts, avoids defects such as sagging and dripping, enhances the uniformity and firmness of the coating, reduces energy consumption, and realizes the automation of spraying operations.
Smart Images

Figure CN223915741U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway embedded parts processing technology, specifically to a rust-proof coating device for railway embedded parts. Background Technology
[0002] Railway embedded parts are typically made of steel. Due to the complex and variable operating environment of railways, they are exposed to various adverse factors such as wind and sun, rain erosion, and chemical corrosion. As a result, railway embedded parts are prone to corrosion during use, making effective protective treatment of them crucial.
[0003] However, because railway embedded parts are usually made of metal steel, their surfaces have a high degree of smoothness. When water-soluble coatings are sprayed onto their surfaces, the coatings often do not adhere well, which may lead to defects such as sagging and dripping marks on the surface. This not only affects the appearance but may also weaken the protective performance of the coating.
[0004] Studies have shown that reducing the surface temperature of embedded parts from the conventional 25℃ to 10℃-15℃ can double the viscosity of water-soluble coatings applied to railway embedded parts, and increase the critical film thickness for sag by 50%. Therefore, by pre-treating railway embedded parts with a cooling temperature, the adhesion of water-soluble coatings to the surface of railway embedded parts can be effectively improved, thereby enhancing the coating effect of the anti-rust coating on railway embedded parts. Utility Model Content
[0005] In view of the problems existing in the prior art, this utility model proposes a rust-proof coating device for railway embedded parts.
[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:
[0007] A rust-proof coating device for railway embedded parts; it includes a spray box and a nozzle installed inside the spray box. The spray box is equipped with a cooling device and an infrared thermometer. When the infrared thermometer detects that the temperature of the railway embedded parts has dropped to between 15℃ and 25℃, the nozzle starts spraying the railway embedded parts.
[0008] The railway embedded parts to be processed are placed in the spraying box, and the cooling device is activated to cool them down. An infrared thermometer monitors the temperature of the embedded parts in real time. When the temperature drops to the range of 15℃-25℃, the viscosity of the water-soluble coating on the railway embedded parts is effectively increased, avoiding defects such as dripping and sagging. At this time, the spray nozzle automatically opens and the spraying operation on the railway embedded parts begins.
[0009] Preferably, a storage tank is provided on the bottom wall of the inner cavity of the spraying box, a cooling device is installed in the storage tank, the storage tank contains coolant covering the entire cooling device, and a sealing plate covering the storage tank is also provided inside the spraying box.
[0010] The cooling device is placed in a storage tank on the bottom wall of the spray booth cavity and is completely covered by coolant. When cooling of the railway embedded parts is required, the cooling device operates, and the coolant absorbs the heat generated, thereby lowering the temperature around the storage tank. The sealing plate prevents coolant from splashing out and also prevents external impurities from entering the storage tank and affecting the normal operation of the coolant and the cooling device.
[0011] Preferably, the sealing plate is made of heat-insulating material and has mounting holes. The spray box is equipped with a heat-conducting plate for placing railway embedded parts, and a heat-conducting column is fixed on the lower end face of the heat-conducting plate. When the railway embedded parts are placed on the heat-conducting plate, the heat-conducting column extends into the coolant through the mounting holes.
[0012] The sealing plate is made of heat-insulating material, effectively reducing heat loss from the coolant in the storage tank. The railway embedded parts to be processed are placed on the heat-conducting plate, which contacts the coolant through heat-conducting columns fixed to its lower end face. When the embedded parts need cooling, their heat is transferred through the heat-conducting plate to the heat-conducting columns, and then from the heat-conducting columns to the coolant, thus achieving rapid cooling. The arrangement of the heat-conducting plate and heat-conducting columns provides an efficient path for heat transfer from the embedded parts, enabling rapid heat transfer to the coolant and further improving cooling speed and efficiency. The heat-insulating sealing plate reduces reverse heat transfer, improving the energy efficiency of the cooling system and also reducing the thermal impact on other components within the spray booth.
[0013] Preferably, the lower end face of the heat-conducting plate is provided with a heat-insulating ring that is sleeved on the outside of the heat-conducting column. When the heat-conducting column passes through the mounting hole and extends into the coolant, the lower end face of the heat-insulating ring abuts against the upper end face of the sealing plate.
[0014] When railway embedded parts are placed on a heat-conducting plate for cooling, the heat-conducting pillars extend into the coolant through the mounting holes, transferring the coolant's heat to the heat-conducting plate, thus cooling the embedded parts. An insulation ring fitted around the outside of the heat-conducting pillar rests its lower end against the upper end of the sealing plate as the pillar extends into the coolant. This design reduces heat loss through the heat-conducting pillars, ensuring concentrated cooling on the plate and improving the cooling effect.
[0015] Preferably, a spring is fixed to the lower end face of the heat-conducting plate, and the other end of the spring is fixed to the sealing plate. When no railway embedded parts are placed on the heat-conducting plate, the heat-conducting column leaves the surface of the coolant under the action of the spring.
[0016] Under normal conditions, when no railway embedded parts are placed on the heat-conducting plate, the spring is in its naturally extended state, pulling the heat-conducting plate upwards, causing the heat-conducting column to leave the coolant surface. When the railway embedded parts are placed on the heat-conducting plate, the weight of the embedded parts overcomes the spring tension, causing the heat-conducting plate to move downwards, and the heat-conducting column to extend into the coolant, thus achieving heat exchange and cooling. When no cooling operation is being performed on the embedded parts, the heat-conducting column remains above the coolant surface, reducing unnecessary heat exchange and lowering energy consumption.
[0017] Preferably, a limiting plate is provided on the lower end face of the heat-conducting column. When the heat-conducting column leaves the surface of the coolant under the action of the spring, the upper end face of the limiting plate abuts against the lower end face of the sealing plate.
[0018] When the heat-conducting column leaves the coolant surface under the action of the spring, the upper surface of the limiting plate abuts against the lower surface of the sealing plate. This not only restricts the rising position of the heat-conducting column but also ensures close contact between the two, improving the sealing performance of this part. In the absence of railway embedded parts for cooling, this excellent seal effectively reduces heat loss from the box to the external environment through this part.
[0019] Preferably, the spraying box is equipped with an insulated chamber, and the spray nozzle is installed inside the insulated chamber. When the infrared thermometer detects that the temperature of the railway embedded parts has dropped to between 15℃ and 25℃, the door of the insulated chamber is opened, and the spray nozzle begins to spray the railway embedded parts.
[0020] An insulated chamber is installed inside the spray booth, and the spray nozzle is placed inside. Before the railway embedded parts reach the suitable spraying temperature of 15℃-25℃, the chamber door remains closed to maintain the temperature of the spray nozzle and paint. When the infrared thermometer detects that the embedded parts have reached the required temperature, the chamber door opens, and the spray nozzle begins spraying the embedded parts. The insulated chamber effectively maintains a stable paint temperature inside the spray nozzle, preventing the paint from becoming less fluid due to excessively low nozzle temperature, which would affect the paint's exit from the nozzle. Attached Figure Description
[0021] Figure 1 This is a cross-sectional view of the anti-rust coating device for railway embedded parts in the embodiment when no railway embedded parts are placed.
[0022] Figure 2 This is a schematic diagram of the structure of the heat-conducting plate and the sealing plate in the embodiment;
[0023] Figure 3 This is a schematic diagram of the structure of the heat-conducting plate and sealing plate after the spring is removed in the embodiment.
[0024] The names of the parts referred to by the numbers in the attached diagram are as follows:
[0025] 110. Spraying box; 1101. Storage tank; 1102. Sealing plate; 120. Spray nozzle; 130. Cooling device; 140. Infrared thermometer; 150. Heat-conducting plate; 1501. Heat-conducting column; 1502. Insulation ring; 1503. Limiting plate; 160. Spring; 170. Insulation chamber. Detailed Implementation
[0026] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.
[0027] Example
[0028] like Figures 1-3 As shown; in this embodiment, the anti-rust coating device includes a spray box 110, inside which is a spray nozzle 120 for spraying the railway embedded parts. The box is also equipped with a cooling device 130 and an infrared thermometer 140. When the cooling device 130 reduces the surface temperature of the railway embedded parts to 15℃-25℃, the spray nozzle 120 starts the spraying operation.
[0029] A storage tank 1101 is provided on the bottom wall of the inner cavity of the spraying box 110. A cooling device 130 is installed in the storage tank 1101, and the storage tank 1101 contains coolant covering the entire cooling device 130 to absorb the heat generated by the cooling device 130. A sealing plate 1102 is also provided inside the spraying box 110, covering the storage tank 1101. The sealing plate 1102 is made of heat-insulating material and has mounting holes. A heat-conducting plate 150 for placing railway embedded parts is provided inside the spraying box 110. A heat-conducting column 1501 is fixed to the lower end face of the heat-conducting plate 150. When the railway embedded parts are placed on the heat-conducting plate 150, the heat-conducting column 1501 extends into the coolant through the mounting holes. The lower end face of the heat-conducting plate 150 is provided with a heat-insulating ring 1502 that is sleeved on the outside of the heat-conducting column 1501. When the heat-conducting column 1501 passes through the mounting hole and extends into the coolant, the lower end face of the heat-insulating ring 1502 abuts against the upper end face of the sealing plate 1102.
[0030] A spring 160 is fixed to the lower end face of the heat-conducting plate 150, and the other end of the spring 160 is fixed to the sealing plate 1102. When no railway embedded parts are placed on the heat-conducting plate 150, the heat-conducting column 1501 leaves the surface of the coolant under the action of the spring 160. A limiting plate 1503 is provided on the lower end face of the heat-conducting column 1501. When the heat-conducting column 1501 leaves the surface of the coolant under the action of the spring 160, the upper end face of the limiting plate 1503 abuts against the lower end face of the sealing plate 1102. In addition, an insulation chamber 170 is provided inside the spray box 110, and the spray nozzle 120 is installed inside the insulation chamber 170.
[0031] The working principle of the anti-rust coating device in this embodiment is as follows:
[0032] The railway embedded parts to be processed are placed on the heat-conducting plate 150, and the cooling device 130 is activated. The heat generated by the cooling device 130 is absorbed by the coolant, reducing the temperature around the storage tank 1101. The heat from the embedded parts is transferred through the heat-conducting plate 150 to the heat-conducting column 1501, and then to the coolant for cooling. When the infrared thermometer 140 detects that the temperature of the embedded parts has dropped to the range of 15℃-25℃, the door of the insulation chamber 170 is opened, and the spray nozzle 120 sprays the embedded parts. When no embedded parts are placed, the spring 160 pulls up the heat-conducting plate 150, causing the heat-conducting column 1501 to leave the coolant surface, reducing heat exchange. When the heat-conducting column 1501 leaves the liquid surface, the limiting plate 1503 abuts against the lower end face of the sealing plate 1102, enhancing the sealing performance.
[0033] By precisely controlling the temperature of the embedded parts, the viscosity of the water-soluble coating on the railway embedded parts is increased, avoiding defects such as sagging and dripping, making the coating more uniform and firm, and enhancing the anti-rust effect.
[0034] The rational cooling design and insulation measures reduced energy consumption and improved work efficiency. The infrared thermometer 140 and control system automated the spraying operation, reducing manual intervention and errors. The insulation chamber 170 design ensures the paint inside the spray nozzle 120 is kept at a suitable temperature.
[0035] In summary, the above are merely preferred embodiments of this embodiment. All equivalent changes and modifications made in accordance with the scope of the patent application of this embodiment shall fall within the scope of the patent of this embodiment.
Claims
1. A device for applying anti-rust coating to railway embedded parts; characterized in that: It includes a spray box (110) and a spray nozzle (120) installed inside the spray box (110). The spray box (110) is equipped with a cooling device (130) and an infrared thermometer (140). When the infrared thermometer (140) detects that the temperature of the railway embedded part has dropped to between 15℃ and 25℃, the spray nozzle (120) starts spraying the railway embedded part.
2. The anti-rust coating device for railway embedded parts according to claim 1, characterized in that: A storage tank (1101) is provided on the bottom wall of the inner cavity of the spray box (110). A cooling device (130) is installed in the storage tank (1101). The storage tank (1101) is filled with coolant covering the entire cooling device (130). The spray box (110) is also provided with a sealing plate (1102) covering the storage tank (1101).
3. The anti-rust coating device for railway embedded parts according to claim 2, characterized in that: The sealing plate (1102) is made of heat-insulating material and has mounting holes. The spray box (110) is equipped with a heat-conducting plate (150) for placing railway embedded parts. A heat-conducting column (1501) is fixed on the lower end face of the heat-conducting plate (150). When the railway embedded parts are placed on the heat-conducting plate (150), the heat-conducting column (1501) extends into the coolant through the mounting holes.
4. The anti-rust coating device for railway embedded parts according to claim 3, characterized in that: The lower end face of the heat-conducting plate (150) is provided with a heat-insulating ring (1502) sleeved on the outside of the heat-conducting column (1501). When the heat-conducting column (1501) passes through the mounting hole and extends into the coolant, the lower end face of the heat-insulating ring (1502) abuts against the upper end face of the sealing plate (1102).
5. The anti-rust coating device for railway embedded parts according to claim 3, characterized in that: A spring (160) is fixed to the lower end face of the heat-conducting plate (150), and the other end of the spring (160) is fixed to the sealing plate (1102). When no railway embedded parts are placed on the heat-conducting plate (150), the heat-conducting column (1501) leaves the surface of the coolant under the action of the spring (160).
6. The anti-rust coating device for railway embedded parts according to claim 5, characterized in that: A limiting plate (1503) is provided on the lower end face of the heat-conducting column (1501). When the heat-conducting column (1501) leaves the surface of the coolant under the action of the spring (160), the upper end face of the limiting plate (1503) abuts against the lower end face of the sealing plate (1102).
7. The anti-rust coating device for railway embedded parts according to claim 1, characterized in that: The spray box (110) is equipped with an insulation chamber (170), and the spray nozzle (120) is installed inside the insulation chamber (170). When the infrared thermometer (140) detects that the temperature of the railway embedded parts has dropped to between 15℃ and 25℃, the door of the insulation chamber (170) is opened, and the spray nozzle (120) begins to spray the railway embedded parts.