Uniform plastic spraying device
By introducing a combination design of conveyor belt and powder coating head into the powder coating device, combined with electric heating wire and curing lamp plate, the problems of uneven powder coating and slow speed are solved, and flexible adaptability and high-efficiency powder coating for workpieces of different sizes are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-07
AI Technical Summary
Existing powder coating equipment has a limited powder coating range and slow powder coating speed when processing longer products, resulting in uneven powder coating and making it impossible to achieve continuous and rapid powder coating.
The machine employs a conveyor belt and powder coating head design within the powder coating machine housing, combined with electric heating wires and curing lamps. Workpieces of different sizes are limited by an electric cylinder and a limit plate. The drive unit drives the conveyor belt to move smoothly, and the powder coating head works in conjunction with it to achieve uniform powder coating and rapid curing.
It achieves flexible adaptability to workpieces of different sizes, ensures uniform powder coating, improves powder coating efficiency and coating quality, and realizes continuous and rapid powder coating effect.
Smart Images

Figure CN224087013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of powder coating, and in particular to a uniform powder coating device. Background Technology
[0002] In industrial production, powder coating is widely used for the surface treatment of various metal and non-metal products to improve their corrosion resistance, wear resistance and decorative properties.
[0003] Chinese Patent No. CN221656903U discloses a powder coating device for uniform powder coating, including a powder coating body, a clamping platform, a gripper, a first telescopic tube fixedly connected to one end of the gripper, a fixing block fixedly connected to one end of the first telescopic tube, and a first motor fixedly connected to one end of the fixing block. This invention utilizes a powder coating head and a fixing platform in conjunction. The fixing platform provides a stable working platform, firmly securing the product in the powder coating area, thus solving the problem of products potentially falling during powder coating, thereby improving work efficiency and ensuring product quality.
[0004] However, the above-mentioned patent requires the product to be firmly fixed in the powder coating area for powder coating treatment. However, the powder coating head has a limited powder coating range, which is a limitation when powder coating longer products. In addition, this powder coating method is slow and cannot achieve the effect of continuous and rapid powder coating. Therefore, we propose a uniform powder coating device to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a uniform powder coating device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A uniform powder coating device includes a powder coating machine housing. A conveyor belt is installed inside the powder coating machine housing. A drive component and a support component are respectively installed inside the conveyor belt. A powder coating head is installed on the inner top wall of the powder coating machine housing, and a connecting joint is connected to the top of the powder coating head. Two heat-conducting plates are installed on the inner top wall of the powder coating machine housing, and electric heating wires are installed on the inner walls of both heat-conducting plates. Two temperature sensors are installed on the inner top wall of the powder coating machine housing. Two curing lamp plates are installed on the inner side wall of the powder coating machine housing. A guide plate is connected to one side of the support component. Two support covers are embedded in the outer surface of the powder coating machine housing. Electric cylinders are installed on the inner walls of both support covers, and limit plates are installed on the extension and retraction ends of both electric cylinders. A connecting pipe is connected to the upper surface of the powder coating machine housing, and a connecting flange is connected to the top of the connecting pipe.
[0008] In a further embodiment, the support includes two left support plates, each with a left bearing ring embedded on one side of the two left support plates that are close to each other. The inner rings of the two left bearing rings are connected to a rotating roller, and the outer surface of the rotating roller is connected to the inner ring of the conveyor belt.
[0009] In a further embodiment, the driving component includes two right support plates, each of which has a right bearing ring embedded on one side that is close to the other, and the inner rings of the two right bearing rings are connected to a driving roller.
[0010] In a further embodiment, the outer surface of the drive roller is connected to the inner ring of the conveyor belt, and a geared motor is mounted on the outer surface of one of the right support plates, with the output end of the geared motor mounted on one end of the drive roller.
[0011] In a further embodiment, the inner wall of the powder coating machine housing has two sliding holes, and the inner walls of the two sliding holes are slidably connected to sliding rods. The ends of the two sliding rods that are close to each other are respectively connected to the sides of the two limiting plates that are far apart from each other.
[0012] In a further embodiment, a connecting seat is connected to the upper surface of the powder coating machine housing, and two sets of threaded connecting grooves are opened on the upper surface of the connecting seat. A controller is installed on one side of the powder coating machine housing.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This invention, by incorporating an electric cylinder and a limiting plate, allows for flexible positioning of workpieces of different sizes, ensuring they are in the correct position during transport. This reduces uneven powder coating caused by improper workpiece placement and improves adaptability to various workpieces. The drive unit propels the conveyor belt smoothly, and in conjunction with the powder coating head, ensures uniform powder coating on the workpiece surface. This overcomes the uneven powder coating issues caused by poorly designed traditional nozzles and achieves continuous and rapid powder coating. The combination of an electric heating wire and a heat-conducting plate ensures uniform heating and coating drying. Furthermore, a curing lamp emits specific wavelengths of light to rapidly cure the powder. Compared to traditional powder coating devices, this combination method more efficiently completes the powder curing process, improving coating quality and production efficiency. Attached Figure Description
[0015] Figure 1 A three-dimensional structural diagram of a uniform powder coating device viewed from the front;
[0016] Figure 2 A top-view cross-sectional view of a uniform powder coating device;
[0017] Figure 3 A cross-sectional view of a uniform powder coating device taken from the front.
[0018] Figure 4 A top-view cross-sectional view of a uniform powder coating device.
[0019] In the diagram: 1. Powder coating machine housing; 2. Conveyor belt; 3. Drive unit; 301. Right support plate; 302. Gear motor; 303. Drive roller; 304. Right bearing ring; 4. Support component; 401. Left support plate; 402. Left bearing ring; 403. Rotary roller; 5. Connecting joint; 6. Powder coating head; 7. Heat-conducting plate; 8. Electric heating wire; 9. Temperature sensor; 10. Curing lamp; 11. Guide plate; 12. Controller; 13. Support cover; 14. Electric cylinder; 15. Limiting plate; 16. Sliding hole; 17. Sliding rod; 18. Connecting pipe; 19. Connecting flange; 20. Connecting seat; 21. Threaded connection groove. Detailed Implementation
[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-4 In this utility model, a uniform powder coating device includes a powder coating machine housing 1. A conveyor belt 2 is installed inside the powder coating machine housing 1. A drive component 3 and a support component 4 are respectively installed inside the conveyor belt 2. A powder coating head 6 is installed on the inner top wall of the powder coating machine housing 1, and a connecting connector 5 is connected to the top of the powder coating head 6. Two heat-conducting plates 7 are installed on the inner top wall of the powder coating machine housing 1, and electric heating wires 8 are installed on the inner walls of both heat-conducting plates 7. Two temperature sensors 9 are installed on the inner top wall of the powder coating machine housing 1. The temperature sensors 9 monitor the temperature inside the powder coating machine housing 1 in real time and feed the data back to a controller 12. The controller 12 controls the operation of the electric heating wires 8 and the curing lamp plate 10 according to the set temperature value. The powder coating machine housing 1 is designed to maintain a suitable temperature for powder coating and powder curing. Two curing lamps 10 are installed on the inner wall of the powder coating machine housing 1. A guide plate 11 is connected to one side of the support component 4. The guide plate 11 can buffer and guide the powder coating workpiece downwards. Two support covers 13 are embedded on the outer surface of the powder coating machine housing 1. Electric cylinders 14 are installed on the inner walls of the two support covers 13. Limit plates 15 are installed on the extension and retraction ends of the two electric cylinders 14. A connecting pipe 18 is connected to the upper surface of the powder coating machine housing 1. A connecting flange 19 is connected to the top of the connecting pipe 18. Through the connecting pipe 18 and the connecting flange 19, it can be connected to the gas purification equipment for easy treatment of powder coating gas.
[0024] In a further embodiment, the support member 4 includes two left support plates 401. Each of the two left support plates 401 has a left bearing ring 402 embedded on one side that is close to each other. The inner rings of the two left bearing rings 402 are connected to a rotating roller 403. The outer surface of the rotating roller 403 is connected to the inner ring of the conveyor belt 2. Through the arrangement of the left support plates 401 and the left bearing rings 402, and their cooperation with the rotating roller 403, the left end of the conveyor belt 2 can be supported, ensuring the stability of the left end of the conveyor belt 2.
[0025] In a further embodiment, the drive component 3 includes two right support plates 301. A right bearing ring 304 is embedded in one of the two right support plates 301 on their adjacent sides. The inner rings of the two right bearing rings 304 are connected to a drive roller 303. The outer surface of the drive roller 303 is connected to the inner ring of the conveyor belt 2. A reduction motor 302 is mounted on the outer surface of one right support plate 301. The output end of the reduction motor 302 is connected to one end of the drive roller 303. The reduction motor 302 in the drive component 3 drives the drive roller 303 to rotate. The drive roller 303, connected to the inner ring of the conveyor belt 2, drives the conveyor belt 2 to rotate. When a workpiece is placed above the conveyor belt 2, it will be smoothly conveyed and powder-coated. The rotating roller 403 of the support component 4 provides auxiliary support and transmission.
[0026] In a further embodiment, the inner wall of the powder coating machine housing 1 has two sliding holes 16, and the inner walls of the two sliding holes 16 are slidably connected to sliding rods 17. The ends of the two sliding rods 17 that are close to each other are respectively connected to the sides of the two limiting plates 15 that are far apart. The sliding rods 17 slide in the sliding holes 16, which plays a guiding and stabilizing role, making the movement of the limiting plates 15 more stable. The upper surface of the powder coating machine housing 1 is connected to a connecting seat 20, and the upper surface of the connecting seat 20 is provided with two sets of threaded connecting grooves 21. A controller 12 is installed on one side of the powder coating machine housing 1. Through the setting of the connecting seat 20 and the threaded connecting grooves 21, the powder coating supply mechanism can be installed and supported. The operation of the device can be controlled by the setting of the controller 12.
[0027] The working principle of this utility model is as follows: First, the workpiece is placed above the conveyor belt 2. When limiting the workpiece of different sizes, the electric cylinder 14 is activated to extend, which can drive the limiting plate 15 to move, thereby limiting the workpiece and ensuring that the workpiece is in a suitable position during the conveying process. Then, the powder coating head 6 is connected to the powder coating supply mechanism through the connecting joint 5, so that the powder can be sprayed out through the powder coating head 6. The driving component 3 drives the conveyor belt 2 to move to the left, so that the powder can be evenly sprayed on the surface of the workpiece on the conveyor belt 2. Then, the electric heating wire 8 is activated to generate heat, and the heat is evenly distributed through the heat conduction plate 7, which can dry the coating. At the same time, the curing lamp plate 10 is turned on to emit light of a specific wavelength, so that the plastic powder sprayed on the surface of the workpiece can be quickly cured to form a uniform and firm coating.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A uniform powder coating device, characterized in that: The system includes a powder coating machine housing (1), inside which a conveyor belt (2) is installed. Inside the conveyor belt (2) are a drive component (3) and a support component (4). A powder coating head (6) is installed on the inner top wall of the powder coating machine housing (1). The top of the powder coating head (6) is connected to a connecting joint (5). Two heat-conducting plates (7) are installed on the inner top wall of the powder coating machine housing (1). Electric heating wires (8) are installed on the inner walls of the two heat-conducting plates (7). Two temperature sensors are installed on the inner top wall of the powder coating machine housing (1). (9) Two curing lamp plates (10) are installed on the inner side wall of the powder coating machine box (1). A guide plate (11) is connected to one side of the support (4). Two support covers (13) are inlaid on the outer surface of the powder coating machine box (1). Electric cylinders (14) are installed on the inner walls of the two support covers (13). Limit plates (15) are installed on the telescopic ends of the two electric cylinders (14). A connecting pipe (18) is connected to the upper surface of the powder coating machine box (1). A connecting flange (19) is connected to the top of the connecting pipe (18).
2. The uniform powder coating device according to claim 1, characterized in that: The support member (4) includes two left support plates (401). The two left support plates (401) are each inlaid with a left bearing ring (402) on one side that is close to each other. The inner rings of the two left bearing rings (402) are connected to a rotating roller (403). The outer surface of the rotating roller (403) is connected to the inner ring of the conveyor belt (2) for transmission.
3. The uniform powder coating device according to claim 1, characterized in that: The drive component (3) includes two right support plates (301), and a right bearing ring (304) is inlaid on one side of the two right support plates (301) that are close to each other. The inner rings of the two right bearing rings (304) are connected to a drive roller (303).
4. The uniform powder coating device according to claim 3, characterized in that: The outer surface of the drive roller (303) is connected to the inner ring of the conveyor belt (2) for transmission. A reduction motor (302) is installed on the outer surface of one of the right support plates (301), and the output end of the reduction motor (302) is installed at one end of the drive roller (303).
5. The uniform powder coating device according to claim 1, characterized in that: The inner wall of the powder coating machine housing (1) has two sliding holes (16), and the inner walls of the two sliding holes (16) are slidably connected with sliding rods (17). The ends of the two sliding rods (17) that are close to each other are respectively connected to the sides of the two limiting plates (15) that are far apart from each other.
6. The uniform powder coating device according to claim 1, characterized in that: The upper surface of the powder coating machine housing (1) is connected to a connecting seat (20), and the upper surface of the connecting seat (20) is provided with two sets of threaded connecting grooves (21). A controller (12) is installed on one side of the powder coating machine housing (1).
Citation Information
Patent Citations
Plastic spraying device capable of spraying plastic uniformly
CN221656903U