Protective layer coating device for aluminum plate
By introducing cooling channels and sprayers into the aluminum plate coating protective layer device, the problems of easy coating peeling and unevenness are solved by using a refrigeration device to cool down and spray solvent, and a firm and smooth coating effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-17
- Publication Date
- 2026-04-03
AI Technical Summary
When applying a protective coating to an existing aluminum plate at room temperature, the coating is prone to peeling and unevenness.
A cooling channel and a sprayer are introduced into the aluminum plate coating protective layer device. The temperature of the aluminum plate is reduced by the refrigeration device and a solvent layer is formed on its surface. Combined with the sprayer spraying the coating solvent, uniform coating is achieved.
It achieves coating firmness and uniformity, ensuring that the coating is not easy to peel off and that the coating is smoother.
Smart Images

Figure CN224072470U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum plate processing equipment technology, and in particular to an aluminum plate coating protective layer device. Background Technology
[0002] Applying a protective layer to an aluminum plate can make the aluminum plate more corrosion resistant, durable, and smooth. The anti-corrosion layer is formed by a protective coating, and the formation of a protective layer on the aluminum plate is completed on an aluminum plate coating protective layer device.
[0003] The aluminum plate coating protective layer device includes a frame with conveyor rollers for transporting aluminum plates. These rollers move the aluminum plates forward, forming a processing path. A paint tank is also mounted on the frame, along with a pick-up roller that dips into the paint tank. A transfer roller and a coating roller are also mounted on the frame. The pick-up roller and transfer roller are in side contact, with the transfer roller receiving paint transferred from the surface of the pick-up roller. The transfer roller and coating roller are also in side contact, with the coating roller receiving paint transferred from the surface of the transfer roller. The coating roller is positioned directly beneath the aluminum plate, and it is the component that applies the coating to the surface of the aluminum plate.
[0004] In the existing technology, the aluminum plate coating protective layer device directly coats the aluminum plate, that is, the aluminum plate surface is coated under the condition of room temperature drying. The coating of the aluminum plate produced in this way has the disadvantages of being easy to peel off and the coating is not easy to be uniform. Summary of the Invention
[0005] The purpose of this invention is to address the above-mentioned shortcomings by providing a device for producing an aluminum plate coating protective layer that is less prone to peeling and has a more uniform coating.
[0006] The technical solution of this utility model is implemented as follows: An aluminum plate coating protective layer device includes a frame, on which are conveying rollers for aluminum plates. The conveying rollers transport the aluminum plates forward, forming a processing path under their action. A paint tank is also installed on the frame, and a material-taking roller is installed on the frame and extends into the paint tank. A transfer roller and a coating roller are also installed on the frame. The material-taking roller and the transfer roller are in side contact, and the transfer roller and the coating roller are in side contact. The coating roller receives paint transferred from the surface of the transfer roller. Below the brush roller is the position where the aluminum plate passes through. This position is the coating station, characterized by the following: a cooling channel is installed on the device frame and around the conveyor rollers. During use, the processing route passes through the cooling channel, which is installed behind the coating station. This cooling channel is a rear cooling channel. The device also includes a refrigeration unit with a cold air outlet that leads to the cold air channel. The device also includes a sprayer with a spray outlet located in the middle of the rear cooling channel and facing the position where the aluminum plate passes through.
[0007] Furthermore, a cooling channel is installed in front of the painting station; this cooling channel is the front cooling channel.
[0008] Furthermore, the cold air outlet of the refrigeration device causes the temperature in the front cooling channel to gradually rise from back to front, and makes the temperature at the front end of the front cooling channel close to room temperature.
[0009] The beneficial effects of this invention are: such an aluminum plate coating protective layer device can produce aluminum plates with coatings that are not easy to peel off and have a more uniform coating. Attached Figure Description
[0010] Figure 1 This is a side view of the structure of this utility model.
[0011] The components include: 1. Frame; 2. Conveying rollers; 3. Paint tank; 4. Picking roller; 5. Transfer roller; 6. Painting roller; 7. Conveying channel; 71. Rear conveying channel; 72. Front conveying channel; 8. Refrigeration device; 81. Cold air outlet; 9. Sprayer; 91. Spray outlet; 10. Painting station. Detailed Implementation
[0012] The present invention will be further described below with reference to the accompanying drawings.
[0013] like Figure 1As shown, an aluminum plate coating protective layer device includes a frame 1, a conveying roller 2 for conveying aluminum plates on the frame, the conveying rollers conveying the aluminum plates forward, forming a processing path under the action of the conveying rollers, a paint tank 3 installed on the frame, a pick-up roller 4 installed on the frame and extending into the paint tank, a transfer roller 5 and a coating roller 6 also installed on the frame, the pick-up roller and the transfer roller are in side contact, the transfer roller and the coating roller are in side contact, the coating roller receives the paint transferred from the surface of the transfer roller, and the aluminum plate is placed below the coating roller. The location is the painting station 10, characterized by a cooling channel 7 installed on the device frame and around the conveyor rollers. During use, the processing route passes through the cooling channel, which is installed behind the painting station. This cooling channel is the rear cooling channel 71. The device also includes a refrigeration device 8 with a cold air outlet 81 that leads to the cold air channel. The device also includes a sprayer 9 with a spray outlet 91 located in the middle of the rear cooling channel and facing the position where the aluminum plate passes.
[0014] Working principle: When using this utility model, the aluminum plate to be coated is subjected to low temperature in the cooling channel, and the aluminum plate will cool down. During use, the sprayer contains some coating solvent, such as ethanol, so that the solvent will form a solvent layer on the surface of the aluminum plate. The formation of the solvent layer is conducive to more uniform coating and smoother coating, which can achieve the purpose of this utility model.
[0015] In one embodiment, the refrigeration device can make the temperature in the cooling channel reach 5-10°C.
[0016] Furthermore, a cooling channel is installed in front of the painting station; this cooling channel is the front cooling channel 72.
[0017] This design allows the coating to cool slowly, ensuring a smoother and more durable finish.
[0018] Furthermore, the cold air outlet of the refrigeration device causes the temperature inside the front cooling channel to gradually rise from back to front, and makes the temperature at the front end of the front cooling channel close to room temperature.
[0019] This design allows for a smoother and more even coating surface.
[0020] The cold air outlet of the refrigeration device causes the temperature in the front cooling channel to gradually increase from back to front. This can be achieved by the density of the cold air outlets distributed in the front cooling channel or by the diameter of the cold air outlets.
[0021] The above embodiments are only some embodiments of this utility model, but the purpose of this utility model is not limited thereto. Any changes or modifications made by those skilled in the art within the scope of this utility model are covered by the patent scope of this utility model.
Claims
1. An aluminum plate coating protective layer device, comprising a frame, a conveying roller for conveying aluminum plates on the frame, the conveying roller conveying the aluminum plates forward, the aluminum plates forming a processing path under the action of the conveying roller, a paint tank also installed on the frame, a pick-up roller installed on the frame and extending into the paint tank, a transfer roller and a coating roller also installed on the frame, the pick-up roller and the transfer roller being in side contact, the transfer roller and the coating roller being in side contact, the coating roller receiving paint transferred from the surface of the transfer roller, and the area below the coating roller being the position where the aluminum plate passes, characterized in that: Cooling channels are also installed on the device frame and around the conveyor rollers. During use, the processing route passes through the cooling channels, which are installed behind the coating station. This cooling channel is a rear cooling channel. The device also includes a refrigeration unit with a cold air outlet that leads to the cold air channel. The device also includes a sprayer with a spray outlet located in the middle of the rear cooling channel and facing the aluminum plate as it passes.
2. The aluminum plate coating protective layer device according to claim 1, characterized in that: A cooling channel is also installed in front of the painting station; this cooling channel is the front cooling channel.
3. The aluminum plate coating protective layer device according to claim 2, characterized in that: The cold air outlet of the refrigeration device causes the temperature in the front cooling channel to gradually rise from back to front, and makes the temperature at the front end of the front cooling channel close to room temperature.