Spraying room with dust recovery function
By introducing sliding and threaded connection components into the powder coating booth, combined with a motor-driven lead screw and suction device, the problem of incomplete dust recovery in the powder coating booth is solved, achieving efficient and uniform powder recovery and stable equipment operation, thereby improving coating quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI CITY JINBAO ELECTROPLATING CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-05-08
AI Technical Summary
The existing simple dust collection devices for powder spraying booths have fixed dust inlet positions, which cannot fully cover the bottom area of the booth, resulting in a large amount of dust residue and low recycling efficiency.
A powder spraying chamber was designed, comprising a spraying chamber body, a fixed frame, a spray head, an inclined plate, a suction plate, a suction block, a scraper, a lead screw, a motor, and guide rails. The chamber achieves comprehensive powder collection through sliding and threaded connections. In conjunction with the suction plate and suction pipe, the motor drives the lead screw to rotate, which in turn moves the suction block. The scraper scrapes off the powder and collects it in the collection box through the suction pipe.
It achieves efficient and uniform powder recovery, reduces powder accumulation at the bottom of the powder spraying booth, lowers production costs, ensures normal equipment operation and operator health, and improves spraying quality and production efficiency.
Smart Images
Figure CN224208337U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of industrial surface treatment equipment, specifically a spray booth with dust recovery function. Background Technology
[0002] In the industrial production field, powder coating is an important surface treatment method widely used in many industries such as automobile manufacturing, machining, and home appliance production. The powder coating process aims to uniformly spray powder coating onto the surface of workpieces using a spray gun, and after curing, it forms a coating with protective and decorative functions. However, a large amount of excess dust is inevitably generated during the powder coating process. If this dust is not effectively treated, it will not only cause waste of resources and increase production costs, but also pose serious hazards to the production environment and the health of operators.
[0003] Currently, there are various types of powder coating booths on the market, each with different structures and functions. Some traditional powder coating booths have simple ventilation devices installed in the powder coating area, attempting to expel excess dust outdoors through airflow. Other powder coating booths are equipped with simple dust collection devices, typically with several fixed dust collection ports installed at the bottom of the powder coating booth, using suction to collect some of the falling dust.
[0004] However, simple dust collection devices, due to their fixed suction port positions, cannot fully cover the bottom area of the powder spraying booth, resulting in a large amount of dust remaining inside the booth and low recycling efficiency. Utility Model Content
[0005] To overcome the above-mentioned defects, this utility model provides a spray booth with dust recovery function, which solves the problem that simple dust collection devices cannot fully cover the bottom area of the spray booth due to the fixed position of the dust collection port, resulting in a large amount of dust remaining in the spray booth and low recovery efficiency.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a spray booth with dust recovery function, comprising a spray booth body, wherein multiple sets of fixed frames are fixedly installed in a symmetrical structure on both sides of the spray booth body, and spray nozzles are slidably connected within the multiple sets of fixed frames. A slot is provided at the bottom of the spray booth body, and inclined plates are provided on both sides of the slot at the bottom of the spray booth body. A fixed block is fixedly installed at the bottom of the spray booth body by bolts, and a suction disc is installed within the fixed block. A first suction pipe is fixedly connected within the suction disc. A suction block is slidably connected at the bottom of the spray booth body in a symmetrical structure. A scraper is connected to one side of the suction block, and the scraper contacts the outer surface of the inclined plate. A second movable block is fixedly connected to the bottom of the suction block, and a connecting pipe is fixedly installed at the bottom of the second movable block. A second suction pipe is installed on one side of the connecting pipe, and the other end of the second suction pipe is connected to the first suction pipe. A recovery box is installed at the other end of the first suction pipe.
[0007] As a further embodiment of this utility model: a lead screw is rotatably connected to one side of the bottom of the powder spraying chamber, one end of the lead screw passes through the outside of the powder spraying chamber, a motor that works with the lead screw is fixedly installed on one side of the powder spraying chamber, the output end of the motor is coaxially and fixedly connected to the lead screw, a slide rod that works with the lead screw is fixedly connected to the other side of the bottom of the powder spraying chamber, the slide rod moves through the second movable block, and the lead screw is threadedly connected to another set of the second movable blocks.
[0008] As a further embodiment of this utility model: a guide rail is laid on the top of the powder spraying chamber, and a first movable block is slidably connected inside the guide rail. A hook is fixedly connected to the bottom of the first movable block in a symmetrical structure, and the first movable block and the hook are located in the middle of the powder spraying chamber.
[0009] As a further embodiment of this utility model: multiple sets of support legs are fixedly installed at the bottom of the powder spraying chamber, and inlet and outlet ports are opened on both sides of the powder spraying chamber.
[0010] As a further embodiment of this utility model: the bottom of the powder spraying chamber is provided with sliding grooves on both sides for use with the second movable block, and the outer side of the second movable block is in contact with the inner wall of the groove.
[0011] As a further embodiment of this utility model: a suction pipe is provided on one side of the recycling bin for use with the first suction pipe and the second suction pipe.
[0012] As a further embodiment of this utility model: the inner wall of the powder spraying chamber is provided with a sound insulation layer, and the sound insulation layer is composed of sound-absorbing cotton and damping material.
[0013] As a further embodiment of this utility model: the surfaces of the suction block and the suction tray that come into contact with the dust are coated with a fluoropolymer coating.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. By pushing the first movable block, the workpiece is moved to the middle position inside the powder spraying chamber. The nozzle slides and adjusts its position within the fixed frame, and then the powder spraying operation begins on the workpiece in the middle position of the powder spraying chamber. During the powder spraying process, excess powder will fall to the bottom of the powder spraying chamber. The motor is started, driving the lead screw to rotate. Since the lead screw is threadedly connected to the second movable block, and the slide rod guides the second movable block, the second movable block will move in a straight line along the lead screw and slide rod. The suction block connected to the second movable block also moves accordingly. The scraper on one side of the suction block will scrape off the powder on the inclined plate. The powder is sucked into the recovery box through the connecting pipe, the second suction pipe, and the first suction pipe. At the same time, the suction plate will also suck the powder from the slot into the recovery box. The powder falling from the workpiece in the middle position will be relatively evenly scattered at the bottom of the powder spraying chamber. The suction block can collect these powders more comprehensively and efficiently during the movement, improving the efficiency of powder recovery. The evenly scattered powder can prevent local accumulation at the bottom of the powder spraying chamber, ensuring the normal operation of the suction device and reducing the damage to the equipment caused by powder accumulation.
[0016] 2. The outer side of the second movable block fits snugly against the inner wall of the slot, effectively preventing powder leakage from the gaps and improving the powder recovery effect. Connected to an external power source centrifugal fan via a suction pipe, the suction pipe, in conjunction with the first and second suction pipes, generates sufficient suction to quickly and effectively draw the powder into the recovery box, improving recovery efficiency and reducing production costs. The surfaces of the suction block and the suction disc in contact with dust are coated with a fluoropolymer coating. This coating has excellent non-stick properties, reducing powder adhesion within the suction components, ensuring unobstructed suction channels, further improving recovery efficiency, and facilitating cleaning and maintenance of the suction components. Attached Figure Description
[0017] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;
[0019] Figure 3 This is a first-view schematic diagram of the cross-sectional structure of this utility model;
[0020] Figure 4 This is a second-view schematic diagram of the cross-sectional structure of this utility model;
[0021] Figure 5 For the present utility model Figure 4 Enlarged view of a portion of point A in the middle;
[0022] Figure 6 This is a partial structural schematic diagram of the present invention.
[0023] In the diagram: 1. Powder spraying chamber body; 2. Guide rail; 3. First movable block; 4. Support leg; 5. Fixed frame; 6. Spray nozzle; 7. Fixed block; 8. Motor; 9. Recycling box; 10. Inclined plate; 11. Scraper; 12. Suction plate; 13. First suction pipe; 14. Inlet / outlet; 15. Second suction pipe; 16. Lead screw; 17. Suction block; 18. Hook; 19. Second movable block; 20. Slide bar; 21. Slide groove; 22. Connecting pipe; 23. Extraction pipe. Detailed Implementation
[0024] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0025] like Figures 1-6 As shown, this utility model provides a spray booth technical solution with dust recovery function:
[0026] The system includes a powder spraying chamber 1. Multiple sets of fixed frames 5 are symmetrically installed on both sides of the powder spraying chamber 1. Spray nozzles 6 are slidably connected within the multiple sets of fixed frames 5. A slot is provided at the bottom of the powder spraying chamber 1. Inclined plates 10 are provided on both sides of the slot at the bottom of the powder spraying chamber 1. A fixed block 7 is fixedly installed at the bottom of the powder spraying chamber 1 by bolts. A suction plate 12 is installed inside the fixed block 7. A first suction pipe 13 is fixedly connected to the suction plate 12. A suction block 17 is slidably connected to the bottom of the powder spraying chamber 1 in a symmetrical structure. A scraper 11 is connected to one side of the suction block 17, and the scraper 11 contacts the outer surface of the inclined plate 10. A second movable block 19 is fixedly connected to the bottom of the suction block 17. A connecting pipe 22 is fixedly installed at the bottom of the second movable block 19. A second suction pipe 15 is installed on one side of the connecting pipe 22. The other end of the second suction pipe 15 is connected to the first suction pipe 13. A recycling box 9 is installed at the other end of the first suction pipe 13.
[0027] Specifically, the object to be sprayed is placed inside the powder spraying chamber 1. Multiple sets of fixed frames 5 contain spray nozzles 6 that can slide within the frames. The position of the spray nozzles 6 can be adjusted as needed to ensure uniform powder spraying. During the spraying process, excess powder falls. The inclined plate 10 at the bottom of the powder spraying chamber 1 guides the powder to both sides of the groove. The suction block 17 slides at the bottom of the powder spraying chamber 1, with its scraper 11 contacting the outer surface of the inclined plate 10. As the suction block 17 slides, the scraper 11 scrapes the powder off the inclined plate 10, allowing the powder to enter the suction block 17. The second movable block 19 at the bottom of the suction block 17 is connected and fixedly installed with the connecting pipe 22. The powder enters the second suction pipe 15 through the connecting pipe 22. The other end of the second suction pipe 15 is connected to the first suction pipe 13. Finally, the powder is collected in the recycling box 9. The suction disc 12 also uses the first suction pipe 13 to collect the powder from the groove. The powder suction and recovery box 9 enables the recycling and reuse of powder. The nozzle 6 can slide within the fixed frame 5, allowing for flexible adjustment of the nozzle 6 position, resulting in more uniform powder spraying, improved coating quality, and guaranteed product surface consistency and aesthetics. Through the coordinated action of components such as the suction plate 12, suction block 17, and scraper 11, excess powder during the powder spraying process can be effectively recovered, avoiding powder waste and reducing production costs. The design of the inclined plate 10 and scraper 11 helps guide and scrape the powder into the suction device, reducing powder accumulation at the bottom of the powder spraying chamber 1, maintaining a clean working environment, and facilitating equipment maintenance and protecting the health of operators. The symmetrical fixed frame 5 on both sides and the symmetrical suction block 17 at the bottom of the powder spraying chamber 1 provide good stability during operation, ensuring the normal operation of powder spraying and powder recovery.
[0028] A lead screw 16 is rotatably connected to one side of the bottom of the powder spraying chamber 1. One end of the lead screw 16 passes through the outside of the powder spraying chamber 1. A motor 8 that works with the lead screw 16 is fixedly installed on one side of the powder spraying chamber 1. The output end of the motor 8 is coaxially fixedly connected to the lead screw 16. A slide rod 20 that works with the lead screw 16 is fixedly connected to the other side of the bottom of the powder spraying chamber 1. The slide rod 20 moves through the second movable block 19. The lead screw 16 is threadedly connected to another set of second movable blocks 19. A guide rail 2 is laid on the top of the powder spraying chamber 1. A first movable block 3 is slidably connected inside the guide rail 2. A hook 18 is fixedly connected to the bottom of the first movable block 3 in a symmetrical structure. The first movable block 3 and the hook 18 are located in the middle of the powder spraying chamber 1.
[0029] Specifically, the workpiece to be powder-coated is hung on hook 18. Since the first movable block 3 can slide within the guide rail 2, the workpiece can be moved to the middle position inside the powder spraying chamber 1 by pushing the first movable block 3. The nozzle 6 slides and adjusts its position within the fixed frame 5, and then the powder spraying operation begins on the workpiece in the middle position of the powder spraying chamber 1. During the powder spraying process, excess powder will fall to the bottom of the powder spraying chamber 1. The motor 8 is started, driving the lead screw 16 to rotate. Since the lead screw 16 is threadedly connected to the second movable block 19, and the slide rod 20 guides the second movable block 19, the second movable block 19 will move linearly along the lead screw 16 and the slide rod 20, interacting with the second movable block 19. The suction block 17 connected to the moving block 19 also moves. The scraper 11 on one side of the suction block 17 scrapes off the powder on the inclined plate 10. The powder is sucked into the recovery box 9 through the connecting pipe 22, the second suction pipe 15 and the first suction pipe 13. At the same time, the suction plate 12 also sucks the powder from the slot into the recovery box 9. The powder falling from the workpiece in the middle position will be relatively evenly scattered at the bottom of the powder spraying chamber 1. The suction block 17 can collect these powders more comprehensively and efficiently during the movement, which improves the efficiency of powder recovery. The evenly scattered powder can prevent local accumulation at the bottom of the powder spraying chamber 1, ensure the normal operation of the suction device, and reduce the damage to the equipment caused by powder accumulation.
[0030] The bottom of the powder spraying chamber 1 is fixedly equipped with multiple sets of support legs 4, and the powder spraying chamber 1 has inlet and outlet ports 14 on both sides. The bottom of the powder spraying chamber 1 has sliding grooves 21 on both sides for use with the second movable block 19. The outer side of the second movable block 19 is in contact with the inner wall of the groove. The recycling box 9 has a suction pipe 23 on one side for use with the first suction pipe 13 and the second suction pipe 15. The inner wall of the powder spraying chamber 1 is provided with a sound insulation layer, which is composed of sound-absorbing cotton and damping material. The surfaces of the suction block 17 and the suction plate 12 that come into contact with dust are coated with a fluoropolymer coating.
[0031] Specifically, the workpiece to be powder-coated is fed into the powder spraying chamber 1 through the inlet / outlet ports 14 on both sides and hung on the hook 18 located in the middle of the powder spraying chamber 1. The first movable block 3 slides within the guide rail 2, which can assist in adjusting the position of the workpiece. Multiple sets of support legs 4 installed at the bottom of the powder spraying chamber 1 provide stable support for the entire powder spraying chamber, ensuring the stability of the equipment during operation and reducing the impact of shaking on the spraying and recycling effect. The inlet / outlet ports 14 on both sides of the powder spraying chamber 1 facilitate the entry and exit of workpieces, improve the efficiency of loading and unloading, and help to achieve continuous production. The sliding grooves 21 on both sides of the bottom provide precise guidance for the second movable block 19, ensuring that it will not deviate during movement. The outer side of the second movable block 19 fits against the inner wall of the groove, which can effectively prevent powder from leaking from the gaps and improve the powder recycling effect. The extraction pipe 23 is connected to an external power source centrifugal fan. The extraction pipe 23, in conjunction with the first suction pipe 13 and the second suction pipe 15, allows the fan to generate sufficient suction to quickly and effectively draw powder into the recovery box 9, improving powder recovery efficiency and reducing production costs. The surfaces of the suction block 17 and the suction disc 12 that come into contact with dust are coated with a fluoropolymer coating. This coating has good non-stick properties, reducing powder adhesion within the suction components, ensuring unobstructed suction channels, further improving recovery efficiency, and facilitating cleaning and maintenance of the suction components. The inner wall of the powder spraying chamber 1 is equipped with a sound insulation layer composed of sound-absorbing cotton and damping materials, effectively absorbing and blocking noise generated during the powder spraying process, creating a relatively quiet working environment for operators, reducing noise damage to their hearing, and also reducing noise pollution to the surrounding environment.
[0032] The working principle of this utility model is as follows:
[0033] First, the workpiece to be powdered is fed in through the inlet and outlet ports 14 on both sides of the powder spraying chamber 1. Since the first movable block 3 can slide in the guide rail 2, the workpiece can be hung on the hook 18 and the first movable block 3 can be pushed to move the workpiece to the middle position inside the powder spraying chamber 1. The multiple sets of support legs 4 at the bottom of the powder spraying chamber 1 provide stable support for the entire equipment, ensuring the stability of the equipment during the feeding process and reducing the impact of shaking on subsequent operations.
[0034] Secondly, the nozzles 6 in the multiple fixed frames 5 slide within the fixed frames 5, and adjust their positions according to the shape of the workpiece and the spraying requirements. Then, they begin to uniformly spray powder onto the workpiece located in the middle of the powder spraying chamber 1. During this process, excess powder will fall to the bottom of the powder spraying chamber 1. Since the workpiece is in the middle position, the distance from the nozzles 6 around the workpiece is roughly the same, which can ensure that the powder is uniformly attached to the surface of the workpiece and improve the spraying quality.
[0035] It is worth mentioning that the starting motor 8 drives the lead screw 16 to rotate. Since the lead screw 16 is threadedly connected to the second movable block 19, and the slide bar 20 guides the second movable block 19, the slide grooves 21 on both sides of the bottom also precisely guide the second movable block 19, so that the second movable block 19 moves in a straight line along the lead screw 16 and the slide bar 20. The suction block 17 connected to the second movable block 19 moves accordingly. The scraper 11 on one side contacts the outer surface of the inclined plate 10 and scrapes the powder off the inclined plate 10. The centrifugal fan connected to the suction pipe 23 generates suction. The powder is sucked into the recovery box 9 through the connecting pipe 22, the second suction pipe 15 and the first suction pipe 13. At the same time, the suction plate 12 will also suck the powder from the slot into the recovery box 9 through the first suction pipe 13. The outer side of the second movable block 19 is in contact with the inner wall of the slot to prevent the powder from leaking from the gap and improve the recovery effect. The fluoropolymer coating on the surfaces of the suction block 17 and the suction plate 12 that come into contact with the dust reduces the adhesion of the powder and ensures that the suction channel is unobstructed.
[0036] Finally, after the powder coating is completed, the first movable block 3 slides again in the guide rail 2 to remove the hook 18 with the powder coated workpiece from the powder coating chamber 1 through the inlet / outlet 14 and remove the workpiece. During this process, the sound insulation layer of the inner wall of the powder coating chamber 1 is composed of sound-absorbing cotton and damping material, which can effectively absorb and block the noise generated during the powder coating process, creating a relatively quiet working environment for the operators.
[0037] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A spray booth with dust recovery function, comprising a powder spray booth body (1), characterized in that: The powder spraying chamber (1) has multiple sets of fixed frames (5) fixedly installed on both sides in a symmetrical structure. Spray nozzles (6) are slidably connected within the multiple sets of fixed frames (5). A slot is provided at the bottom of the powder spraying chamber (1). Inclined plates (10) are provided on both sides of the slot at the bottom of the powder spraying chamber (1). A fixed block (7) is fixedly installed at the bottom of the powder spraying chamber (1) by bolts. A suction plate (12) is installed inside the fixed block (7). A first suction pipe (13) is fixedly connected to the suction plate (12). The bottom of the powder spraying chamber (1) has a symmetrical structure with multiple fixed frames (5) fixedly installed on both sides. A suction block (17) is movably connected, and a scraper (11) is connected to one side of the suction block (17). The scraper (11) is in contact with the outer surface of the inclined plate (10). A second movable block (19) is fixedly connected to the bottom of the suction block (17). A connecting pipe (22) is fixedly installed at the bottom of the second movable block (19). A second suction pipe (15) is installed on one side of the connecting pipe (22). The other end of the second suction pipe (15) is connected to the first suction pipe (13). A recycling box (9) is installed at the other end of the first suction pipe (13).
2. The spray booth with dust recovery function according to claim 1, characterized in that: A lead screw (16) is rotatably connected to one side of the bottom of the powder spraying chamber (1). One end of the lead screw (16) passes through the outside of the powder spraying chamber (1). A motor (8) that works with the lead screw (16) is fixedly installed on one side of the powder spraying chamber (1). The output end of the motor (8) is coaxially fixedly connected to the lead screw (16). A slide rod (20) that works with the lead screw (16) is fixedly connected to the other side of the bottom of the powder spraying chamber (1). The slide rod (20) moves through the second movable block (19). The lead screw (16) is threadedly connected to another set of the second movable blocks (19).
3. The spray booth with dust recovery function according to claim 2, characterized in that: The top of the powder spraying chamber (1) is covered with a guide rail (2), and a first movable block (3) is slidably connected inside the guide rail (2). The bottom of the first movable block (3) is fixedly connected with a hook (18) in a symmetrical structure. The first movable block (3) and the hook (18) are located in the middle of the powder spraying chamber (1).
4. The spray booth with dust recovery function according to claim 3, characterized in that: The bottom of the powder spraying chamber (1) is fixedly equipped with multiple sets of support legs (4), and the powder spraying chamber (1) has inlet and outlet ports (14) on both sides.
5. The spray booth with dust recovery function according to claim 4, characterized in that: The powder spraying chamber (1) has grooves (21) on both sides of its bottom, which are used in conjunction with the second movable block (19). The outer side of the second movable block (19) is in contact with the inner wall of the groove.
6. The spray booth with dust recovery function according to claim 5, characterized in that: The recycling bin (9) is provided with a suction pipe (23) on one side for use with the first suction pipe (13) and the second suction pipe (15).
7. The spray booth with dust recovery function according to claim 6, characterized in that: The inner wall of the powder spraying chamber (1) is provided with a sound insulation layer, which is composed of sound-absorbing cotton and damping material.
8. The spray booth with dust recovery function according to claim 7, characterized in that: The surfaces of the suction block (17) and the suction tray (12) that come into contact with the dust are coated with a fluoropolymer coating.