A device for coating a board surface with rust-proof oil
By designing a rust-preventive oil coating device for sheet metal with a spraying rack, coating rack, and drying rack, the problem of incomplete coating in traditional methods has been solved, achieving all-round coating and rapid air drying of sheet metal, thus improving coating efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING HAIYUAN GENERAL AVIATION TECH CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-29
AI Technical Summary
In the traditional process of applying rust-preventive oil to sheet metal, the edges of the sheet metal are not completely coated, requiring two coats, which affects the coating efficiency.
Design a rust-preventive oil coating device for sheet metal surfaces, comprising an oil spraying frame, a coating frame, and a drying frame. The oil spraying frame is equipped with nozzles, the coating frame is equipped with coating brushes to achieve coating on all four sides and two sides of the sheet metal, and the drying frame is used for air drying.
It achieves one-time all-round coating of the four sides and two sides of the board, improving coating efficiency, and allows for rapid air drying after coating, making it easy to collect.
Smart Images

Figure CN224293610U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal sheet production, and in particular to a rust-preventive oil coating device for sheet surfaces. Background Technology
[0002] Applying rust-preventive oil to steel plates primarily works by forming a protective film on the metal surface to prevent contact with air, moisture, and other corrosive substances, thus achieving rust prevention. This type of rust-preventive oil is widely used in industries such as steel, automobile manufacturing, and machining, and is especially important when protecting metal plates during long-term storage or transportation.
[0003] In the traditional process of applying rust-preventive oil to sheet metal, both sides of the sheet metal are usually coated. However, the edges of the sheet metal are easily missed, causing rust to form around them. Furthermore, the coating process can only be done on one side at a time, requiring two coats, which affects the coating efficiency and needs to be improved. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rust-preventive oil coating device for plate surface, which has the effect of improving coating efficiency.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a rust-preventive oil coating device for plate surface, comprising:
[0006] The support frame is horizontally installed on the ground.
[0007] A drive roller is horizontally and rotatably connected to the support frame at intervals;
[0008] The oil spray frame is rectangularly arranged on the support frame and is used for the plate to pass through. A rectangular oil spray pipe is arranged inside the oil spray frame. A solenoid valve is arranged on the oil spray pipe. Several nozzles are evenly distributed on the inner wall of the oil spray pipe.
[0009] A coating rack, rectangular in shape, is set on the support frame and is used to pass through the sheet material. It is located behind the spray gun. A rectangular coating brush is provided inside the coating rack. The coating brush is used to contact the two sides and all sides of the sheet material.
[0010] In a preferred embodiment, the present invention can be further configured as follows: a drying rack is provided on the support frame behind the coating rack; the support frame is rectangular and is for the plate to pass through; a rectangular air blowing pipe is provided on the inner side of the drying rack; and a plurality of air blowing ports are evenly distributed on the inner wall of the air blowing pipe.
[0011] In a preferred embodiment, the present invention can be further configured such that a pair of limiting plates are provided at the front end of the support frame, the limiting plates being used to clamp the two sides of the plate.
[0012] In a preferred embodiment, the present invention can be further configured as follows: the coating brush includes a pair of brush plates, the brush plates are arranged in an L-shape and interlock with each other, a plurality of dovetail blocks are provided on the back side of the brush plates, and the coating frame is provided with dovetail grooves for the dovetail blocks to slide into, the tail end of the dovetail grooves being closed.
[0013] In a preferred embodiment, the present invention can be further configured such that the brush plate is inclined and flared.
[0014] In a preferred embodiment, the present invention can be further configured such that: a sensor located in front of the fuel injector is provided on the support frame, and the sensor is connected to the solenoid valve.
[0015] In a preferred embodiment, the present invention can be further configured such that a conveyor belt is laterally arranged at the tail end of the support frame.
[0016] In summary, this utility model has the following beneficial effects:
[0017] 1. By setting up a ring-shaped spray gun and coating gun, it is possible to spray oil on all four sides of the board and coat it at the same time, completing the all-round anti-rust oil coating operation of the board in one go, so as to prevent the board from rusting and improve the coating efficiency.
[0018] 2. By setting up a structure behind the support frame that can air dry the board, the board can be air dried around its edges after the anti-rust oil is applied, making it easy to collect the board quickly and directly.
[0019] 3. By designing an easy-to-disassemble coating brush, the brush can be removed, stored, and cleaned after use, ensuring stable application of the anti-rust oil. Attached Figure Description
[0020] Figure 1 This is a structural schematic diagram of an embodiment;
[0021] Figure 2 This is a schematic diagram of the structure of the spray gun, coating gun, and drying gun in the embodiment;
[0022] Figure 3 This is a schematic diagram of the coating rack in an embodiment.
[0023] Reference numerals: 1. Support frame; 2. Drive roller; 3. Spraying frame; 31. Spraying pipe; 32. Solenoid valve; 33. Nozzle; 4. Coating frame; 41. Coating brush; 42. Brush plate; 43. Dovetail block; 44. Dovetail groove; 5. Drying frame; 51. Air blowing pipe; 52. Air blowing nozzle; 6. Conveyor belt; 7. Limiting plate; 8. Sensor. Detailed Implementation
[0024] The present invention will be further described in detail below with reference to the accompanying drawings.
[0025] like Figure 1 As shown, a rust-preventive oil coating device for sheet metal surfaces includes a support frame 1, a transmission roller 2, an oil spraying frame 3, a coating frame 4, and a drying frame 5.
[0026] like Figure 1 As shown, the support frame 1 is horizontally positioned on the ground, and a conveyor belt 6 is horizontally positioned at the tail end of the support frame 1 for transporting the processed sheet material. A drive roller 2 is horizontally and rotatably connected to the support frame 1, and is also used for transporting the sheet material.
[0027] like Figure 1 As shown, a pair of limiting plates 7 are provided at the front end of the support frame 1. The limiting plates 7 are used to clamp the two sides of the plate to limit the plate during transmission, ensuring stable transmission and processing of the plate.
[0028] like Figure 1 , Figure 2 As shown, the fuel injector 3 is rectangularly mounted on the support frame 1 and is used for the plate to pass through. A rectangular fuel injector pipe 31 is provided inside the fuel injector 3, and a solenoid valve 32 is provided on the fuel injector pipe 31. Several nozzles 33 are evenly distributed on the inner wall of the fuel injector pipe 31. A sensor 8 is provided on the support frame 1 in front of the fuel injector 3, and the sensor 8 is connected to the solenoid valve 32.
[0029] like Figure 1 , Figure 2 As shown, the coating rack 4 is rectangularly arranged on the support frame 1, through which the sheet metal is passed, and is located behind the spray gun 3. A rectangular coating brush 41 is provided on the inner side of the coating rack 4, which is used to contact the two sides and all sides of the sheet metal.
[0030] like Figure 1 , Figure 2 As shown, the drying rack 5 is rectangularly arranged on the support frame 1, and is used to pass through the sheet metal, and is located behind the coating rack 4. A rectangular air blowing pipe 51 is provided on the inner side of the drying rack 5, and several air blowing ports 52 are evenly distributed on the inner wall of the air blowing pipe 51.
[0031] When it is necessary to coat the surface of the sheet material with anti-rust oil, the sheet material is placed on the transmission roller 2 on the support frame 1, and the limiting plate 7 clamps both sides of the sheet material to restrict its straight-line transmission. Then the sheet material is passed through the spraying frame 3, the coating frame 4 and the drying frame 5 in sequence, and finally the coated sheet material is transported by the conveyor belt 6 to complete the subsequent production processing of the sheet material.
[0032] When the sheet metal enters the spray gun 3, it covers the sensor 8. At this time, the sensor 8 transmits a signal to the position of the solenoid valve 32 and opens the solenoid valve 32. At this time, the rust-preventive oil fills the spray pipe 31 and is sprayed out along the nozzle 33, spraying the rust-preventive oil on both sides and around the sheet metal.
[0033] When the board enters the coating rack 4, the coating brush 41 wraps around the board and applies the coating to the edges, ensuring that the rust-preventive oil is evenly applied to the board. When the board enters the drying rack 5, cold air enters the air blowing pipe 51 and is blown out along the air blowing port 52, achieving air drying of the board.
[0034] Therefore, by setting up an annular spray gun 3 and a coating gun 4, it is possible to spray oil around the board and coat it around the board at the same time, completing the all-round anti-rust oil coating operation of the board in one go, so as to prevent the board from rusting and improve the coating efficiency.
[0035] Meanwhile, by setting a structure behind the support frame 1 that can air dry the board, the board can be air dried around its edges after the anti-rust oil is applied, making it easy to collect the board quickly and directly.
[0036] like Figure 2 , Figure 3 As shown, the coating brush 41 includes a pair of brush plates 42, which are L-shaped and interlocked. The brush plates 42 are inclined and flared. Multiple dovetail blocks 43 are provided on the back side of the brush plates 42. The coating frame 4 is provided with dovetail grooves 44 for the dovetail blocks 43 to slide and be inserted into. The tail end of the dovetail grooves 44 is closed.
[0037] Because the coating brush 41 is flared, when the board enters or leaves the position of the brush plate 42, the brush plate 42 can coat both ends of the board, and then coat both sides and sides of the board to complete the all-round coating of the board.
[0038] Meanwhile, the dovetail block 43 on the brush plate 42 is embedded into the dovetail groove 44 from front to back, and the plate also slides from front to back, so the brush plate 42 will not fall off. After a period of use, the brush plate 42 can also be disassembled to replace and clean it, ensuring the stable coating of anti-rust oil on the plate.
[0039] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.
Claims
1. A device for coating rust-preventive oil on the surface of sheet metal, characterized in that: include: The support frame (1) is horizontally set on the ground; The drive roller (2) is horizontally and rotatably connected to the support frame (1) at intervals; The oil spray frame (3) is rectangularly arranged on the support frame (1) and is used for the plate to pass through. A rectangular oil spray pipe (31) is arranged inside the oil spray frame (3). A solenoid valve (32) is arranged on the oil spray pipe (31). Several nozzles (33) are evenly distributed on the inner wall of the oil spray pipe (31). The coating rack (4) is rectangularly arranged on the support frame (1) and is used for the plate to pass through. It is located behind the spray gun (3). A rectangular coating brush (41) is provided on the inner side of the coating rack (4). The coating brush (41) is used to contact the two sides and the sides of the plate.
2. The anti-rust oil coating device for plate surface according to claim 1, characterized in that: The support frame (1) is provided with a drying rack (5) located behind the coating rack (4). The support frame (1) is rectangular and is used for passing through the plate. A rectangular air blowing pipe (51) is provided on the inner side of the drying rack (5). Several air blowing ports (52) are evenly distributed on the inner wall of the air blowing pipe (51).
3. The anti-rust oil coating device for plate surface according to claim 2, characterized in that: A pair of limiting plates (7) are provided at the front end of the support frame (1), and the limiting plates (7) are used to clamp the two sides of the plate.
4. The anti-rust oil coating device for plate surface according to claim 1, characterized in that: The coating brush (41) includes a pair of brush plates (42), which are L-shaped and interlocked. Multiple dovetail blocks (43) are provided on the back side of the brush plates (42). The coating frame (4) is provided with dovetail grooves (44) for the dovetail blocks (43) to slide into. The tail end of the dovetail grooves (44) is closed.
5. The anti-rust oil coating device for plate surface according to claim 4, characterized in that: The brush plate (42) is set at an angle and has an flared shape.
6. The anti-rust oil coating device for plate surface according to claim 1, characterized in that: The support frame (1) is provided with a sensor (8) located in front of the fuel injector (3), and the sensor (8) is connected to the solenoid valve (32).
7. The anti-rust oil coating device for plate surface according to claim 1, characterized in that: A conveyor belt (6) is horizontally arranged at the tail end of the support frame (1).