Residual powder recovery device of hub powder spraying equipment
By designing a compact residual powder recovery device for wheel hub powder spraying equipment, using a combination of a long cylindrical mounting cylinder and an air intake fan filter element, along with a vibration motor and an air tank nozzle, the problems of low compatibility and low recovery efficiency of existing devices are solved, achieving efficient and comprehensive powder recovery.
Patent Information
- Application Number
- CN202520100912.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The residual powder recovery device of the existing wheel hub powder coating equipment is difficult to be compatible with the existing powder coating equipment due to its large size, and the recovery efficiency is low.
A compact residual powder recovery device for wheel hub powder spraying equipment was designed. It adopts a combination of a long cylindrical mounting cylinder, an air suction fan and a filter element. It uses negative pressure to suck up unattached powder and uses a vibration motor to assist in the powder falling off. Combined with an air storage tank and an inclined nozzle, it raises the powder on the ground, thereby improving the recovery efficiency.
The device achieves compatibility with various powder spraying equipment, improves powder recovery efficiency and thoroughness, and ensures efficient operation of the equipment and comprehensive powder recovery.
Smart Images

Figure CN223818932U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to wheel hub powder spraying recycling technical field especially relates to a kind of residual powder recovery device of wheel hub powder spraying equipment. BACKGROUND
[0002] In wheel hub spraying operation, powder coating is usually attached to the surface of wheel hub by electrostatic spraying method. However, due to poor electrostatic effect, inappropriate spraying distance and other factors, part of the powder cannot be effectively attached and is lost with air flow. In order to improve material utilization and reduce waste, the residual powder recovery device of wheel hub powder spraying equipment aims to capture these unattached powders and reuse them.
[0003] According to the patent No. CN220610974U, a kind of powder spraying powder recycling and recycling device can realize effective recovery of powder through its unique structure design. However, due to its large size, it occupies a lot of space and is difficult to be compatible with existing powder spraying equipment, which limits its practicality.
[0004] Therefore, in view of the above problems, it is necessary to provide a residual powder recovery device for wheel hub powder spraying equipment, which not only overcomes the space occupation problem of existing technology, but also has the ability to efficiently recover powder to meet the compatibility of various powder spraying equipment in modern production. UTILITY MODEL CONTENT
[0005] In order to overcome the shortcomings of the above-mentioned prior art, the utility model provides a residual powder recovery device for wheel hub powder spraying equipment, which overcomes the space occupation problem of existing technology and has the ability to efficiently recover powder to meet the compatibility of various powder spraying equipment in modern production.
[0006] A residual powder recovery device for wheel hub powder spraying equipment includes a base, a mounting cylinder, an air inlet pipe, a filter element, a cover plate, a mounting ring, a suction fan, a mounting cover, a sealing ring and an air outlet pipe. The mounting cylinder is arranged on the base, the air inlet pipe is connected to the mounting cylinder in a staggered manner, the cover plate is inserted into the upper end of the mounting cylinder, the filter element is arranged at the bottom of the cover plate for filtering residual powder, and the suction fan is arranged at the middle position for sucking residual powder. When the cover plate is fastened to the mounting cylinder, the filter element and the suction fan are placed in the mounting cylinder, and there is a gap between the mounting cylinder and the filter element for storing residual powder. The mounting cover is inserted between the base and the bottom end of the mounting cylinder, the sealing ring is assembled on the mounting cover, there is a compartment between the sealing ring and the filter element for collecting residual ash, and the mounting ring is arranged on the inner wall of the filter element. The air outlet pipe is connected to the mounting cover for exhaust.
[0007] Further, a vibration motor is arranged on the filter element for vibrating the attached residual powder.
[0008] Furthermore, it also includes a gas storage tank, nozzles, and valves. The gas storage tank is located at the top of the mounting cylinder, and a valve for controlling the gas inlet is located on the top of the gas storage tank. Nozzles for spraying gas are arranged at intervals on the gas storage tank.
[0009] Furthermore, the nozzles are evenly distributed on the circumferential surface and bottom of the gas storage tank. The nozzles on the circumferential surface are arranged horizontally, while the nozzles at the bottom are arranged at an angle and outward.
[0010] Furthermore, handles are symmetrically arranged on the cover plate.
[0011] Furthermore, the mounting tube is made of a transparent material.
[0012] The beneficial effects are as follows: 1. Through its compact design, especially the elongated cylindrical design of the mounting cylinder, this utility model not only facilitates movement and placement but also improves the compatibility of the device with various types of powder coating equipment. It is suitable for wheel hub painting operations of different specifications and models. In addition, through the coordinated operation of the suction fan and the filter element, the device uses the suction fan to generate negative pressure, effectively drawing air containing unattached powder into the device, and using the filter element to filter and separate the powder, thereby improving the efficiency of powder recovery and efficiently handling the recovery of residual powder.
[0013] 2. This utility model uses a built-in vibration motor to help the powder attached to the filter element fall off, further improving the recycling efficiency and ensuring unobstructed operation of the filter element.
[0014] 3. This utility model, through the setting of the air tank and the nozzle, and by using the nozzle placed at an angle at the bottom, effectively raises the powder on the ground, promotes the recycling of the powder, and further ensures the comprehensive recycling of residual powder. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a three-dimensional structural cross-sectional view of the filter element, cover plate, and air tank of this utility model.
[0017] Figure 3 This is a three-dimensional structural cross-sectional view of the components of this utility model, including the air intake fan, mounting cover, and sealing ring.
[0018] Figure 4 This is a three-dimensional structural cross-sectional view of the gas storage tank, nozzle, and valve of this utility model.
[0019] The parts and their numbers in the diagram are as follows: 1. Base, 2. Mounting cylinder, 3. Air inlet pipe, 4. Filter element, 5. Cover plate, 6. Mounting ring, 7. Suction fan, 8. Mounting cover, 9. Sealing ring, 10. Air outlet pipe, 11. Vibration motor, 12. Air tank, 13. Nozzle, 14. Valve. Detailed Implementation
[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings.
[0021] Example: A residual powder recovery device for wheel hub powder coating equipment, such as Figures 1-3 As shown, the device includes a base 1, a mounting cylinder 2, an air inlet pipe 3, a filter element 4, a cover plate 5, a mounting ring 6, an air intake fan 7, a mounting cover 8, a sealing ring 9, and an air outlet pipe 10. The mounting cylinder 2 is mounted on the base 1, and the two together form the basic structure of the entire device. The mounting cylinder 2 is used to house the internal components, and its elongated cylindrical design makes it easier to move and place. Furthermore, its narrow shape improves the compatibility of the device with various types of powder coating equipment, making it suitable for residual powder recovery operations of different types of wheel hub painting equipment. The mounting cylinder 2 is made of transparent material, facilitating observation of the internal conditions of the device. Air inlet pipes 3 are arranged at intervals on the mounting cylinder 2 to introduce external powder-laden air into it for subsequent recovery. A cover plate 5 is inserted into the upper end of the mounting cylinder 2, with symmetrically arranged handles for easy gripping and disassembly. A filter element 4 for filtering residual powder is located at the bottom of the cover plate 5, and a suction fan 7 is positioned in the middle for aspirating the residual powder. The filter element 4 is detachable from the cover plate 5, allowing for convenient replacement. The air fan 7 generates negative pressure to draw powder-laden air through the air inlet pipe 3 into the mounting cylinder 2, promoting the flow of powder-laden air and improving filtration and recovery efficiency. When the cover plate 5 is fastened onto the mounting cylinder 2, the filter element 4, along with the air fan 7, is placed inside the mounting cylinder 2, thus completing the assembly of the core components of this device. A gap exists between the mounting cylinder 2 and the filter element 4 to store residual powder, ensuring that powder entering the mounting cylinder 2 is first intercepted by the filter element 4, and then placed in the gap between the two elements, thereby achieving powder separation and facilitating subsequent processing. For recycling and collection, an installation cover 8 is inserted between the base 1 and the bottom of the installation cylinder 2. The installation cover 8 can be removed from it. A sealing ring 9 is installed on the installation cover 8. There is a compartment for collecting residual ash between the sealing ring 9 and the filter element 4. The sealing ring 9 ensures the seal between the installation cover 8 and the filter element 4, preventing the powder placed in the compartment from being directly discharged. In addition, an installation ring 6 is also provided on the installation cover 8 to be in contact with the inner wall of the filter element 4, making the base of the filter element 4 more stable. An exhaust pipe 10 is also connected to the installation cover 8 for exhausting the filtered gas.
[0022] like Figure 3As shown, it also includes a vibration motor 11. The filter element 4 is provided with a vibration motor 11 for vibrating the attached residual powder. The vibration helps to remove the powder attached to and accumulated on the surface of the filter element 4, and maintains the permeability and filtration efficiency of the filter element 4.
[0023] like Figure 1 , Figure 2 and Figure 4 As shown, it also includes a gas storage tank 12, nozzles 13, and valves 14. The gas storage tank 12 is located at the top of the mounting cylinder 2. A valve 14 for controlling the gas inflow is located at the top of the gas storage tank 12. Nozzles 13 for spraying gas are arranged at intervals on the gas storage tank 12. The nozzles 13 are evenly distributed on the circumferential surface and the bottom of the gas storage tank 12. The nozzles 13 on the circumferential surface are arranged horizontally, while the nozzles 13 at the bottom are arranged at an angle and outward. The inert gas flowing in is controlled by the valve 14. The compressed inert gas is stored in the gas storage tank 12 and released through the nozzles 13, so that both the horizontal and the angled nozzles 13 spray out inert gas. The horizontal nozzles 13 distribute the inert gas evenly, while the angled nozzles 13 spray towards the ground and raise the falling powder, so that the powder is suspended in the air and can be sucked in and processed by the suction fan 7.
[0024] When recovering residual powder from powder coating equipment, the device must first be placed at the desired location, ensuring it is on a stable surface. Its cylindrical design allows for adaptability to various environments, and its omnidirectional shape facilitates comprehensive powder collection, improving recovery efficiency and thoroughness. It also enhances compatibility with different types of powder coating equipment. Next, the operator activates the suction fan 7, generating negative pressure that draws in air containing unattached powder through the intake pipes 3. This air then enters the mounting cylinder 2. Inside the mounting cylinder 2, the powder-laden air is filtered by the filter element 4, effectively intercepting the powder particles. The purified air is then directed to the center of the mounting cylinder 2 and discharged through the exhaust pipe 10. The intercepted powder is temporarily stored in the gap between the mounting cylinder 2 and the filter element 4. To further improve recovery efficiency, a vibration motor 11 can be simultaneously activated to vibrate and dislodge the powder from the filter element 4. This dislodged powder then falls into the compartment between the sealing ring 9 and the filter element 4.
[0025] In addition, inert gas can be injected into the gas storage tank 12 by opening valve 14, and then the nozzles 13 can be activated to spray the inert gas through each nozzle 13. The tilted nozzles 13 will spray the gas towards the ground, thereby raising the powder on the ground and suspending it in the air, making it easier for the suction fan 7 to suck in and process it. During this process, inert gas will also be sucked in, which helps to maintain the uniform dispersion of the powder. After the recovery operation is completed, the operator should remove the mounting cover 8 at the bottom of the device. As the mounting cover 8 is removed, the sealing ring 9 is also taken out, which opens the bottom of the mounting cylinder 2 to collect the powder accumulated in the compartment. Then, the necessary cleaning and maintenance work can be carried out, including removing the gas storage tank 12 from the mounting cylinder 2, opening the cover plate 5, and taking out the filter element 4 and the suction fan 7. The filter element 4 is removed for replacement, and the suction fan 7 is cleaned to ensure the continuous and efficient operation of the equipment. This completes the overall operation process of this device.
[0026] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.
Claims
1. A residual powder recovery device for a wheel hub powder coating equipment, comprising a base (1), characterized in that: It also includes an installation cylinder (2), an air inlet pipe (3), a filter element (4), a cover plate (5), an installation ring (6), a suction fan (7), an installation cover (8), a sealing ring (9), and an air outlet pipe (10). The base (1) is provided with an installation cylinder (2), and the installation cylinder (2) is connected to the air inlet pipe (3) in an alternating pattern. A cover plate (5) is inserted into the upper end of the installation cylinder (2). The bottom of the cover plate (5) is provided with a filter element (4) for filtering residual powder, and a suction fan (7) located in the middle for sucking up residual powder. When the cover plate (5) is fastened to the installation cylinder (2), the The filter element (4) together with the suction fan (7) is placed inside the mounting cylinder (2), and there is a gap between the mounting cylinder (2) and the filter element (4) for storing residual powder. A mounting cover (8) is inserted between the base (1) and the bottom end of the mounting cylinder (2). A sealing ring (9) is mounted on the mounting cover (8). There is a compartment for collecting residual ash between the sealing ring (9) and the filter element (4). A mounting ring (6) that is in contact with the inner wall of the filter element (4) is also provided on the mounting cover (8). An exhaust pipe (10) for exhausting is also connected to the mounting cover (8).
2. The residual powder recovery device for a wheel hub powder coating equipment according to claim 1, characterized in that: It also includes a vibration motor (11), and the filter element (4) is provided with a vibration motor (11) for vibrating the adhering residual powder.
3. The residual powder recovery device for a wheel hub powder coating equipment according to claim 2, characterized in that: It also includes a gas storage tank (12), a nozzle (13) and a valve (14). The gas storage tank (12) is located at the top of the mounting cylinder (2). A valve (14) for controlling the gas entry is provided on the top of the gas storage tank (12). Nozzles (13) for spraying gas are arranged at intervals on the gas storage tank (12).
4. The residual powder recovery device for a wheel hub powder coating equipment according to claim 3, characterized in that: The nozzles (13) are evenly distributed on the circumferential surface and bottom of the gas storage tank (12). The nozzles (13) on the circumferential surface are arranged horizontally, while the nozzles (13) at the bottom are arranged at an angle and outward.
5. The residual powder recovery device for a wheel hub powder coating equipment according to claim 4, characterized in that: The cover plate (5) is symmetrically provided with handles.
6. The residual powder recovery device for a wheel hub powder coating equipment according to claim 5, characterized in that: The mounting cylinder (2) is made of transparent material.