An electrostatic powder coating device for aluminum surfaces

By designing an electrostatic powder coating device for aluminum surfaces and employing rotary spraying and collection components, the problem of non-reusable powder was solved, achieving uniform coating of aluminum surfaces and recycling of powder.

CN224271583UActive Publication Date: 2026-05-26JIANGXI RONGXING ALUMINUM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI RONGXING ALUMINUM CO LTD
Filing Date
2025-06-24
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing aluminum coating equipment cannot collect and reuse the powder after coating, resulting in resource waste.

Method used

An electrostatic powder coating device for aluminum surfaces was designed, comprising a housing, a collection component, a coating plate, and a motor drive system. The device achieves powder recycling through rotary spraying and the collection component.

Benefits of technology

This achieves uniform powder coating on aluminum surfaces and enables the recycling of powder, reducing resource waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an electrostatic powder coating device for aluminum surfaces. The device includes a housing with a collection assembly at the bottom. A guide frame is fixedly installed at the bottom of the housing, and a fixing plate is installed on top of the guide frame. A turntable is rotatably mounted on top of the fixing plate. A pressure plate is located inside the housing above the turntable. A spraying plate is slidably mounted on one side of the inner wall of the housing, and multiple spray nozzles are connected to one side of the spraying plate. The collection assembly includes a collection box located at the bottom of the housing. The top of the collection box is connected to the bottom of the guide frame. An opening is provided at the top of the collection box, and a filter screen is installed on the inner wall of the opening. A guide plate is fixedly connected to the bottom of the collection box. This utility model solves the problem that while existing devices achieve comprehensive coating of aluminum profiles, the powder cannot be collected and reused after coating, resulting in resource waste and inconvenience during use.
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Description

Technical Field

[0001] This utility model relates to the technical field of aluminum spraying equipment, specifically to an electrostatic powder spraying equipment for aluminum surfaces. Background Technology

[0002] Powder coating is a process in which powder coating equipment (electrostatic powder coating machine) sprays powder coating onto the surface of a workpiece. Under the action of electrostatics, the powder will be evenly adsorbed onto the surface of the workpiece to form a powdery coating. The powdery coating is then baked at high temperature to flow and cure, becoming a final coating with different effects (different types of powder coatings have different effects). The coating effect of powder coating is superior to that of spray painting in terms of mechanical strength, adhesion, corrosion resistance, and aging resistance, and the cost is also lower than that of spray painting with the same effect.

[0003] Patent document CN 222343255 U discloses an aluminum profile powder coating device. The device involves placing the aluminum profile to be coated on a lower clamping plate, then activating a cylinder to extend its output shaft and move the lower clamping plate upwards until the upper end of the aluminum profile contacts the lower side of the upper clamping plate. The aluminum profile is then fixed between the lower and upper clamping plates. The door is then closed, and a second motor and nozzle are activated. Powder from the storage tank enters the nozzle through a rubber tube and is sprayed to the left onto the outer side of the aluminum profile held between the lower and upper clamping plates. Simultaneously, a reciprocating screw rotates, causing a moving block to move up and down repeatedly, which in turn causes the nozzle to move up and down repeatedly, uniformly coating the aluminum profile at different heights on its outer side. In implementing this technical solution, the inventors discovered at least the following problems in the prior art:

[0004] While the above-mentioned device achieves comprehensive coating of aluminum profiles in actual use, the powder cannot be collected and reused after coating, resulting in waste of resources and inconvenience during use. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0006] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An electrostatic powder coating device for aluminum surface includes a housing, and a collection component is provided at the bottom of the housing.

[0009] A guide frame is fixedly installed at the bottom of the box, a fixing plate is installed on the top of the guide frame, a turntable is rotatably installed on the top of the fixing plate, a pressure plate is installed inside the box above the turntable, a spraying plate is slidably installed on one side of the inner wall of the box, and multiple spray nozzles are connected to one side of the spraying plate.

[0010] Furthermore: the collection assembly includes a collection box disposed at the bottom of the box body, the top of the collection box being connected to the bottom of the guide frame, the top of the collection box having an opening, and the inner wall of the opening being provided with a filter screen, the bottom of the collection box being fixedly connected to a guide plate, and a collection box being fixedly connected to one side of the collection box, the collection box having an exhaust fan installed inside, one end of the exhaust fan being connected to the inside of the collection box through a pipe, the other end of the exhaust fan being connected to a discharge pipe, the top of the collection box having a spray pump being installed, one end of the spray pump being connected to a telescopic flexible hose, and the other end of the spray pump being connected to a material extraction pipe.

[0011] Furthermore: a connecting frame is installed on the inner wall of the box, the connecting frame is located between the guide frame and the collection box, a connecting pipe is connected to one side of the spray plate, and one end of the telescopic hose is connected to one end of the connecting pipe.

[0012] Furthermore: a first motor is installed at the bottom of the fixed plate, the output end of the first motor is fixedly connected to the top of the turntable, an electric push rod is installed at the top of the box, the top rod of the electric push rod is fixedly connected to a rotating seat, and the bottom of the rotating seat is rotatably connected to the top of the pressure plate.

[0013] Furthermore: a second motor is installed on one side of the inner wall of the box, and a lead screw is fixedly connected to the output end of the second motor. The outer side of the lead screw is threadedly connected to the inner wall of the spray plate.

[0014] Furthermore: a support rod is fixedly connected to the inner wall of the box, and the inner wall of the spray plate is slidably connected to the outer side of the support rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Open the door on one side of the cabinet, place the aluminum material on top of the turntable inside the cabinet, and press and fix the aluminum material by moving the pressure plate down to contact the top of the aluminum material. The turntable rotates on top of the fixing plate, causing the aluminum material to rotate. The spray nozzle on one side of the spray plate sprays powder onto the aluminum material. During the spraying process, the aluminum material rotates, making the spraying more uniform. After the spraying is completed, the powder inside the cabinet is collected by the collection component, which facilitates the reuse of the powder.

[0017] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0018] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model;

[0022] Figure 3 This is a schematic diagram of the material guide frame of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the collection component of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Housing; 2. Collection assembly; 21. Collection box; 22. Filter screen; 23. Guide plate; 24. Central box; 25. Exhaust fan; 26. Spray pump; 27. Telescopic hose; 3. Material guide frame; 4. Fixing plate; 5. Turntable; 6. Pressure plate; 7. Spray plate; 8. Spray nozzle; 9. Connecting frame; 10. First motor; 11. Electric push rod; 12. Second motor; 13. Lead screw; 14. Support rod; 15. Connecting pipe. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Please see Figures 1-4 As shown in the figure, the electrostatic powder coating device for aluminum surface provided in this embodiment of the present invention includes a box 1, and a collection component 2 is provided at the bottom of the box 1;

[0031] A guide frame 3 is fixedly installed at the bottom of the box 1. A fixing plate 4 is installed on the top of the guide frame 3. A turntable 5 is rotatably installed on the top of the fixing plate 4. A pressure plate 6 is installed inside the box 1 above the turntable 5. A spraying plate 7 is slidably installed on one side of the inner wall of the box 1. Multiple spray nozzles 8 are connected to one side of the spraying plate 7.

[0032] Open the door on one side of the housing 1, place the aluminum material on top of the turntable 5 inside the housing 1, and press and fix the aluminum material by moving the pressure plate 6 down to contact the top of the aluminum material. The turntable 5 rotates on top of the fixing plate 4, causing the aluminum material to rotate. The spray nozzle 8 on one side of the spraying plate 7 sprays powder onto the aluminum material. During the spraying process, the aluminum material rotates, making the spraying of the aluminum material more uniform. After the spraying is completed, the powder inside the housing 1 is recycled and collected by the collection component 2, which makes it easy to reuse the powder.

[0033] Preferably, the collection component 2 includes a collection box 21 located at the bottom of the box body 1. The top of the collection box 21 is connected to the bottom of the guide frame 3. The top of the collection box 21 has an opening, and the inner wall of the opening is provided with a filter screen 22. A guide plate 23 is fixedly connected to the bottom of the collection box 21. A collection box 24 is fixedly connected to one side of the collection box 21. An exhaust fan 25 is installed inside the collection box 24. One end of the exhaust fan 25 is connected to the inside of the collection box 21 through a pipe, and the other end of the exhaust fan 25 is connected to a discharge pipe. A spray pump 26 is installed on the top of the collection box 24. One end of the spray pump 26 is connected to a telescopic hose 27, and the other end of the spray pump 26 is connected to a material extraction pipe.

[0034] A connecting frame 9 is installed on the inner wall of the box 1. The connecting frame 9 is located between the guide frame 3 and the collection box 21. A connecting pipe 15 is connected to one side of the spray plate 7. One end of the telescopic hose 27 is connected to one end of the connecting pipe 15.

[0035] After the powder is sprayed onto the aluminum surface, it falls into the guide frame 3. The powder enters the collection box 21 through the guide frame 3 and the connecting frame 9. Impurities in the powder are filtered through the filter screen 22. The filtered powder falls onto the inclined guide plate 23, and slides down to one side of the guide plate 23 under the action of gravity. The sprayed powder is collected. The exhaust fan 25 draws the powder from the collection box 21 and transports it to the collection box 24. The spraying pump 26 draws the powder from the collection box 24 and transports it to the spraying plate 7 through the connecting pipe 15 via the telescopic hose 27, thereby recycling the powder.

[0036] Preferably, a first motor 10 is installed at the bottom of the fixed plate 4, and the output end of the first motor 10 is fixedly connected to the top of the turntable 5. An electric push rod 11 is installed at the top of the housing 1, and a rotating seat is fixedly connected to the top of the electric push rod 11, and the bottom of the rotating seat is rotatably connected to the top of the pressure plate 6.

[0037] The first motor 10 can easily drive the turntable 5 to rotate, and the electric push rod 11 can easily drive the pressure plate 6 to rise and fall.

[0038] Preferably, a second motor 12 is installed on one side of the inner wall of the housing 1, and a lead screw 13 is fixedly connected to the output end of the second motor 12. The outer side of the lead screw 13 is threadedly connected to the inner wall of the spray plate 7.

[0039] The second motor 12 drives the lead screw 13 to rotate, causing the spraying plate 7 to be raised and lowered, so as to carry out all-round spraying operation on the aluminum material.

[0040] Preferably, a support rod 14 is fixedly connected to the inner wall of the housing 1, and the inner wall of the spray plate 7 is slidably connected to the outer side of the support rod 14.

[0041] When the spray plate 7 is raised or lowered, one side of it slides on the support rod 14 to guide and limit one side of the spray plate 7, thereby improving the stability of the spray plate 7 during the raising and lowering process.

[0042] The working principle of this utility model is as follows: Open the door on one side of the housing 1, place the aluminum material on top of the turntable 5 inside the housing 1, and press and fix the aluminum material by lowering the pressure plate 6 to contact the top of the aluminum material. The turntable 5 rotates on top of the fixing plate 4, causing the aluminum material to rotate. The spray nozzle 8 on one side of the spraying plate 7 sprays powder onto the aluminum material. During the spraying process, the aluminum material rotates, making the spraying more uniform. After the powder is sprayed onto the surface of the aluminum material, it falls into the guide frame 3. The powder then enters the receiving container through the guide frame 3 and the connecting frame 9. Inside the collection box 21, impurities in the powder are filtered by the filter screen 22. The filtered powder falls onto the inclined guide plate 23, and then slides down to one side of the guide plate 23 under the action of gravity. The powder after spraying is collected. The exhaust fan 25 draws the powder from the collection box 21 into the collection box 24. The spraying pump 26 draws the powder from the collection box 24 into the collection box 24 and transports the powder through the telescopic hose 27 and the connecting pipe 15 into the spraying plate 7, thereby recycling the powder.

[0043] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electrostatic powder coating device for aluminum surfaces, characterized in that, Includes a box (1), and a collection component (2) is provided at the bottom of the box (1); A guide frame (3) is fixedly installed at the bottom of the box (1). A fixing plate (4) is installed on the top of the guide frame (3). A turntable (5) is rotatably installed on the top of the fixing plate (4). A pressure plate (6) is installed inside the box (1) above the turntable (5). A spraying plate (7) is slidably installed on one side of the inner wall of the box (1). Multiple spray nozzles (8) are connected to one side of the spraying plate (7).

2. The electrostatic powder coating device for aluminum surface according to claim 1, characterized in that: The collection component (2) includes a collection box (21) located at the bottom of the box body (1). The top of the collection box (21) is connected to the bottom of the guide frame (3). The top of the collection box (21) has an opening, and the inner wall of the opening is provided with a filter screen (22). The bottom of the collection box (21) is fixedly connected to a guide plate (23). A collection box (24) is fixedly connected to one side of the collection box (21). A blower (25) is installed inside the collection box (24). One end of the blower (25) is connected to the inside of the collection box (21) through a pipe. The other end of the blower (25) is connected to a discharge pipe. A spray pump (26) is installed on the top of the collection box (24). One end of the spray pump (26) is connected to a telescopic hose (27), and the other end of the spray pump (26) is connected to a material extraction pipe.

3. The electrostatic powder coating device for aluminum surface according to claim 2, characterized in that: The inner wall of the box (1) is equipped with a connecting frame (9), which is located between the guide frame (3) and the collection box (21). One side of the spray plate (7) is connected to a connecting pipe (15), and one end of the telescopic hose (27) is connected to one end of the connecting pipe (15).

4. The electrostatic powder coating device for aluminum surface according to claim 1, characterized in that: The bottom of the fixed plate (4) is equipped with a first motor (10), the output end of the first motor (10) is fixedly connected to the top of the turntable (5), the top of the box (1) is equipped with an electric push rod (11), the top rod of the electric push rod (11) is fixedly connected to a rotating seat, and the bottom of the rotating seat is rotatably connected to the top of the pressure plate (6).

5. The electrostatic powder coating device for aluminum surface according to claim 1, characterized in that: A second motor (12) is installed on one side of the inner wall of the box (1). A lead screw (13) is fixedly connected to the output end of the second motor (12). The outer side of the lead screw (13) is threadedly connected to the inner wall of the spray plate (7).

6. The electrostatic powder coating device for aluminum surface according to claim 1, characterized in that: The inner wall of the box (1) is fixedly connected to a support rod (14), and the inner wall of the spray plate (7) is slidably connected to the outer side of the support rod (14).