Airflow coating equipment convenient to clean
By combining a backflushing machine and a vibrator, the problem of powder adhesion in the airflow coating equipment was solved, achieving efficient mixing and cleaning of powder and liquid, and improving the conveying efficiency of the equipment.
Patent Information
- Application Number
- CN202423176274.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-23
AI Technical Summary
In existing airflow coating equipment, when powder and liquid are mixed, the material tends to adhere to the filter device, which is difficult to clean and affects the conveying efficiency.
The filter element is cleaned by combining a backflush machine with an air inlet pipe and a vibrator. The backflush machine blows away the adhering powder, the vibrator shakes off the powder, and a spray gun is used to spray liquid and heated air to ensure uniform mixing.
It effectively cleans powder adhering to the filter element, improves conveying efficiency, ensures uniform mixing of powder and liquid, and enhances equipment operating efficiency.
Smart Images

Figure CN223760812U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hybrid technology, and in particular to an airflow encapsulation device that is easy to clean. Background Technology
[0002] Airflow coating machines, as efficient and practical coating equipment, play an important role in industrial production. Their core component is the nozzle, which sprays airflow onto the target object. During the coating process, the airflow carries the coating material and impacts the object's surface at extremely high speeds, causing the material to adhere tightly to the object and form a uniform coating layer.
[0003] Currently, airflow coating equipment generally includes a mixing tank, a conveyor, and an air inlet pipe. The conveyor is installed in the mixing tank, the air inlet pipe is inserted into the mixing tank, and the conveyor is equipped with a filter device. When airflow coating equipment is used to mix powder and liquid, the material tends to adhere to the filter device, which is difficult to clean and affects the conveying efficiency. Utility Model Content
[0004] Therefore, it is necessary to provide an airflow envelopment device that is easy to clean in order to address the above problems.
[0005] An easy-to-clean airflow encapsulation device includes a mixing tank, a vacuum conveyor, and a feeding assembly. The mixing tank includes an air inlet cylinder, a mixing cylinder, a discharge cylinder, and a feed cylinder connected in sequence. The vacuum conveyor includes a support plate, a filter element, a cover plate, a suction pipe, an air inlet pipe, a backflushing machine, and a vibrator. The support plate is mounted on the feed cylinder, the filter element is mounted on the support plate, and the cover plate is placed on the support plate. One end of the suction pipe is connected to the cover plate, and the other end is connected to the suction machine. One end of the air inlet pipe is connected to the cover plate, and the other end is connected to the backflushing machine. The vibrator is mounted on the support plate. The feeding assembly includes multiple spray guns inserted into the mixing cylinder, with each spray gun evenly distributed along the circumference of the mixing cylinder. The spray guns are used to spray liquid and heated air into the mixing tank.
[0006] In one embodiment, the mixing tank further includes a pipe and an air flotation plate, one end of the pipe being connected to the air inlet cylinder and the other end being connected to an air conveyor; the air flotation plate is installed at the end of the mixing tank near the air inlet cylinder.
[0007] In one embodiment, a stirring assembly is further included. The stirring assembly includes a hopper, a rotating shaft, blades, a fixed plate, a vertical rod, and a stirring power element. The hopper is installed inside the mixing cylinder and has multiple through holes. The rotating shaft passes through the mixing cylinder and the hopper, and the blades are installed on the rotating shaft. The fixed plate is disposed inside the air inlet cylinder and has multiple air holes. One end of the vertical rod is installed at the bottom of the feed cylinder, and the other end is installed on the fixed plate. The stirring power element is installed on the fixed plate and is used to drive the rotating shaft to rotate.
[0008] In one embodiment, the stirring assembly further includes stirring blades mounted on the rotating shaft and on one side of the blades.
[0009] In one embodiment, the spray gun has a three-way structure, with the first end connected to an air heater, the second end connected to a liquid conveyor, and the third end connected to the mixing cylinder.
[0010] In one embodiment, the feeding assembly further includes a sealing plug installed on the mixing cylinder, and the spray gun is rotatably and / or slidably connected to the sealing plug.
[0011] In one embodiment, the feeding assembly further includes a gas-liquid nozzle installed in the discharge cylinder, the gas-liquid nozzle being used to inject liquid and heated air into the mixing tank.
[0012] In one embodiment, a shaker is also included, which is mounted on the side wall of the feed cylinder.
[0013] In one embodiment, a heating element is also included, which covers the outside of the mixing cylinder.
[0014] In one embodiment, the vibrator is an ultrasonic vibrator.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This utility model's easy-to-clean airflow coating device blows air towards the filter element through a back-blowing machine and an air inlet pipe, thereby blowing away the powder adhering to the filter element; it also vibrates the support plate through a vibrator, thereby shaking off the powder adhering to the filter element; by combining vibration and back-blowing, it effectively cleans the powder adhering to the filter element and improves conveying efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the easy-to-clean airflow covering device shown in the first embodiment of this utility model;
[0018] Figure 2 for Figure 1 A sectional view along line AA.
[0019] Figure 3 for Figure 1 The diagram shows the structure of the feed cylinder, support plate, filter element and vibrator in the airflow envelopment device that is easy to clean;
[0020] Figure 4 This is a schematic diagram of the structure of the airflow covering device that is easy to clean, as shown in the second embodiment of this utility model;
[0021] Figure 5 for Figure 4 The diagram shows the structure of the mixing component in an airflow coating device that is easy to clean; the hopper is not shown.
[0022] Figure 6 for Figure 4 The diagram shows an airflow enveloping device that is easy to clean and is in a circulating mixing state.
[0023] The meanings of the numbers in the attached diagram are as follows:
[0024] 100. Easy-to-clean airflow envelopment equipment;
[0025] 10. Mixing tank; 11. Air inlet cylinder; 12. Mixing cylinder; 120. Groove; 13. Discharge cylinder; 14. Feed cylinder; 15. Through pipe; 16. Air flotation plate; 17. Feed pipe; 18. Discharge pipe;
[0026] 20. Vacuum conveyor; 21. Support plate; 22. Filter element; 23. Cover plate; 24. Suction pipe; 25. Air inlet pipe; 26. Backflush machine; 27. Vibrator; 30. Feeding assembly; 31. Spray gun; 32. Sealing plug; 33. Gas-liquid nozzle; 40. Shaker;
[0027] 100a. An easy-to-clean airflow enveloping device;
[0028] 10a. Mixing tank; 11a. Air inlet cylinder; 12a. Mixing cylinder; 13a. Discharge cylinder; 14a. Feed cylinder; 15a. Through pipe; 16a. Air flotation plate; 17a. Feed pipe; 18a. Discharge pipe; 40a. Agitator assembly; 41a. Hopper; 410a. Through hole; 42a. Rotating shaft; 43a. Blade; 44a. Fixing plate; 440a. Air hole; 45a. Vertical rod; 46a. Agitator power element; 47a. Agitator blade. Detailed Implementation
[0029] To make the above-mentioned objects, 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. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.
[0031] Furthermore, the terms "first" and "second" 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0035] Please refer to Figures 1 to 3 A utility model provides an easy-to-clean airflow coating device 100, comprising a mixing tank 10, a vacuum conveyor 20, and a feeding assembly 30. The mixing tank 10 includes an air inlet cylinder 11, a mixing cylinder 12, a discharge cylinder 13, and a feed cylinder 14 connected in sequence. The vacuum conveyor 20 includes a support plate 21, a filter element 22, a cover plate 23, a suction pipe 24, an air inlet pipe 25, a back-blowing machine 26, and a vibrator 27. The support plate 21 is mounted on the feed cylinder 14. The filter element... The filter element 22 is installed on the support plate 21, and the cover plate 23 covers the support plate 21. One end of the suction pipe 24 is connected to the cover plate 23, and the other end is connected to the suction fan. One end of the air inlet pipe 25 is connected to the cover plate 23, and the other end is connected to the back-blowing machine 26. The vibrator 27 is installed on the support plate 21. The feeding assembly 30 includes multiple spray guns 31 inserted into the mixing cylinder 12. Each spray gun 31 is evenly distributed along the periphery of the mixing cylinder 12. The spray guns 31 are used to spray liquid and heated air into the mixing tank 10. This easy-to-clean airflow coating device 100 blows air towards the filter element 22 through the back-blowing machine 26 and the air inlet pipe 25, thereby blowing away the powder adhering to the filter element 22. The support plate 21 is vibrated by the vibrator 27, thereby shaking off the powder adhering to the filter element 22. By combining vibration and back-blowing, the powder adhering to the filter element 22 is effectively cleaned, and the conveying efficiency is improved.
[0036] Example 1:
[0037] like Figure 1 and Figure 2As shown, in this embodiment, the mixing tank 10 includes an air inlet cylinder 11, a mixing cylinder 12, a discharge cylinder 13, and a feed cylinder 14 connected in sequence. Optionally, the mixing cylinder 12 has multiple slots 120 at one end connected to the air inlet cylinder 11. Further, the mixing tank 10 also includes a through pipe 15 and an air flotation plate 16. One end of the through pipe 15 is connected to the air inlet cylinder 11, and the other end is connected to an air conveyor. The air flotation plate 16 is installed at the end of the mixing cylinder 12 near the air inlet cylinder 11. In one embodiment, the air conveyor is used to transport hot air, which blows towards the air flotation plate 16 to prevent powder from accumulating on the air flotation plate 16. The air flotation plate 16 is a SUS sintered plate. The mixing tank 10 also includes a feed pipe 17 and a discharge pipe 18, which are respectively connected to both sides of the air inlet cylinder 11.
[0038] like Figures 1 to 3 As shown, the vacuum conveyor 20 includes a support plate 21, a filter element 22, a cover plate 23, a suction pipe 24, an air inlet pipe 25, a back-blowing machine 26, and a vibrator 27. The support plate 21 is mounted on the feed cylinder 14, and the filter element 22 is mounted on the support plate 21. Optionally, there may be multiple filter elements 22. The cover plate 23 covers the support plate 21. One end of the suction pipe 24 is connected to the cover plate 23, and the other end is connected to the suction machine. In use, the suction machine draws air, causing the powder to enter the mixing tank 10 through the feed pipe 17. Under the action of the filter element 22, the powder remains in the mixing tank 10. One end of the air inlet pipe 25 is connected to the cover plate 23, and the other end is connected to the back-blowing machine 26. The vibrator 27 is mounted on the support plate 21. Optionally, the vibrator 27 is an ultrasonic vibrator. Air is blown towards the filter element 22 by the back-blowing machine 26 and the air inlet pipe 25, thereby blowing away the powder adhering to the filter element 22; the support plate 21 is vibrated by the vibrator 27, thereby shaking off the powder adhering to the filter element 22.
[0039] Please refer to the following: Figure 1 and Figure 2 The feeding assembly 30 includes multiple spray guns 31 inserted into the mixing cylinder 12. The spray guns 31 are used to spray liquid and heated air into the mixing tank 10. The liquid is atomized by heating, allowing the powder to be coated with the liquid. Each spray gun 31 is evenly distributed along the periphery of the mixing cylinder 12 to ensure thorough mixing of the liquid and powder. Optionally, the spray gun 31 has a three-way structure, with the first end connected to the air heater, the second end connected to the liquid conveyor, and the third end connected to the mixing cylinder 12. Further, the feeding assembly 30 also includes a sealing plug 32, which is installed in the mixing cylinder 12. The spray guns 31 are rotatably and / or slidably connected to the sealing plug 32. Rotating the spray guns 31 to the sealing plug 32 adjusts the firing direction of the spray guns 31; sliding the spray guns 31 to the sealing plug 32 adjusts their horizontal position. In one embodiment, the feeding assembly 30 further includes a gas-liquid nozzle 33 installed in the feed cylinder 13, the gas-liquid nozzle 33 being used to inject liquid and heated air into the mixing tank 10, further ensuring thorough mixing of the liquid and powder.
[0040] like Figure 1 As shown, the easy-to-clean airflow coating device 100 also includes a shaker 40, which is installed on the side wall of the feeding cylinder 13. The shaker 40 vibrates to prevent powder from accumulating on the side wall of the feeding cylinder 13. Optionally, the shaker 40 is a reciprocating vibrator.
[0041] In one embodiment, the easy-to-clean airflow covering device 100 further includes a heating element (not shown) that covers the outside of the mixing cylinder 12 to ensure that the mixing tank 10 maintains a high temperature so that the liquid is atomized; optionally, the heating element is an electric heating blanket.
[0042] In operation, the valve of the feed pipe 17 is opened, the valve of the discharge pipe 18 is closed, and the vacuum conveyor 20 starts working, sucking the powder into the mixing tank 10 until the powder is filled to the predetermined level. At this point, the vacuum conveyor 20 stops working, and the valve of the feed pipe 17 is closed. Next, heated air enters the air inlet cylinder 11 through the through pipe 15, and then enters the mixing tank 12 through the air flotation plate 16, allowing the powder to flow fully and preventing the powder from accumulating on the air flotation plate 16. Then, the liquid and heated air enter the spray gun 31 respectively, and are then injected into the mixing tank 10. The high temperature atomizes the liquid, achieving mixing of powder and liquid. Optionally, the liquid and heated air enter the gas-liquid nozzle 33 respectively, and are then sprayed into the mixing tank 10. Air is continuously supplied through the through pipe 15, and the spray gun 31 works intermittently to mix the powder and liquid until the predetermined mixing time. Finally, the valve of the discharge pipe 18 is opened, and the mixed and coated product is discharged into the material tank through the discharge pipe 18.
[0043] This easy-to-clean airflow coating device 100 introduces hot air into the air inlet 11 and the air flotation plate 16, allowing the powder in the mixing tank 10 to flow freely and preventing powder accumulation on the air flotation plate 16. Then, the spray gun 31 injects liquid and heated air into the mixing tank 10, causing the liquid to atomize upon heating. The powder and atomized liquid mix and coat in a short time, resulting in high efficiency and uniform mixing. Furthermore, the continuous introduction of hot air through the pipe 15 and the spray gun 31, along with the heating element, keeps the mixing tank 10 at a high temperature, further enhancing liquid atomization. The powder and liquid expand upon heating, resulting in uniform coating. Precise metering of the powder and liquid ensures high mixing accuracy. Air is blown onto the filter element 22 through the backflushing machine 26 and the air inlet pipe 25, while the vibrator 27 vibrates the support plate 21. The backflushing machine 26 and the vibrator 27 operate intermittently, and the combination of vibration and backflushing effectively cleans the powder adhering to the filter element 22.
[0044] Example 2:
[0045] Please see Figures 4 to 6This is a second embodiment of the easy-to-clean airflow coating device 100a. This embodiment is similar to the easy-to-clean airflow coating device 100 of the first embodiment, except that the easy-to-clean airflow coating device 100a of this embodiment further includes a stirring assembly 40a. The stirring assembly 40a includes a hopper 41a, a rotating shaft 42a, blades 43a, a fixing plate 44a, a vertical rod 45a, and a stirring power element 46a. The hopper 41a is installed inside the mixing cylinder 12a and has multiple through holes 410a to allow powder to fall from the hopper 41a into the mixing cylinder 12a; the rotating shaft... A mixing cylinder 12a and a hopper 41a are connected by a shaft 42a. A blade 43a is mounted on a rotating shaft 42a, which drives the blade 43a to rotate, causing the blade 43a to agitate the powder and force it to fall through the through hole 410a. Optionally, the blade 43a is a spiral blade. A fixed plate 44a is disposed inside an air inlet cylinder 11a and has multiple air holes 440a to allow gas flow. One end of a vertical rod 45a is mounted to the bottom of the feed cylinder 14a, and the other end is mounted to the fixed plate 44a. A stirring power element 46a is mounted on the fixed plate 44a and is used to drive the rotating shaft 42a to rotate. Optionally, the mixing assembly 40a also includes a stirring blade 47a, which is mounted on the rotating shaft 42a and on one side of the blade 43a. The rotating shaft 42a drives the stirring blade 47a to rotate, causing the stirring blade 47a to agitate the powder and force it to fall through the through hole 410a.
[0046] In operation, the valve on the feed pipe 17a is opened, and the valve on the discharge pipe 18a is closed. The vacuum conveyor starts working, drawing powder into the mixing tank 10a until the powder reaches the predetermined level. At this point, the vacuum conveyor stops working, and the valve on the feed pipe 17a is closed. Next, ambient temperature air enters the air inlet cylinder 11a through the through pipe 15a, and then enters the mixing cylinder 12a through the air flotation plate 16a, ensuring sufficient powder flow and preventing powder accumulation on the air flotation plate 16a. Because the air is in contact with the stirring power element 46a, hot air cannot be introduced through the through pipe 15a. Then, the liquid and heated air enter the spray guns respectively, and are then injected into the mixing tank 10a. The high temperature atomizes the liquid, achieving mixing of the powder and liquid. Optionally, the liquid and heated air enter the gas-liquid nozzles respectively, and are then sprayed into the mixing tank 10a. Simultaneously, the stirring power element 46a drives the rotating shaft 42a to rotate, which in turn drives the blades 43a and stirring blades 47a to rotate, forcing the powder in the hopper 41a to fall through the through hole 410a. Furthermore, a negative pressure zone is formed inside the hopper 41a. Air is continuously introduced through the through pipe 15a, and the spray gun sprays atomized liquid upwards, forcing the powder to flow continuously upwards. The powder enters the discharge cylinder 13a from the mixing cylinder 12a. Due to the negative pressure zone inside the hopper 41a, the powder flows back into the hopper 41a from the discharge cylinder 13a, forming a circulating mixture to ensure thorough mixing and coating of the powder and liquid. This circulating mixing continues until the predetermined mixing time. Finally, the valve of the discharge pipe 18a opens, and the mixed and coated product is discharged into the material tank through the discharge pipe 18a.
[0047] The easy-to-clean airflow coating device 100 of this utility model blows air towards the filter element 22 through the back-blowing machine 26 and the air inlet pipe 25, thereby blowing away the powder adhering to the filter element 22; the vibrator 27 vibrates the support plate 21, thereby shaking off the powder adhering to the filter element 22; by combining vibration and back-blowing, the powder adhering to the filter element 22 is effectively cleaned, and the conveying efficiency is improved.
[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0049] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An air flow coating apparatus that facilitates cleaning, characterized in that, The mixing tank comprises a gas inlet cylinder, a mixing cylinder, a discharging cylinder and a feeding cylinder which are sequentially communicated, the vacuum conveyor comprises a support plate, a filter core, a cover plate, an air suction pipe, a gas inlet pipe, a back blowing machine and a vibrator, the support plate is installed on the feeding cylinder, the filter core is installed on the support plate, the cover plate is arranged on the support plate, one end of the air suction pipe is communicated with the cover plate and the other end is communicated with an air suction fan, one end of the gas inlet pipe is communicated with the cover plate and the other end is communicated with the back blowing machine, and the vibrator is installed on the support plate; the feeding assembly comprises a plurality of spray guns which are arranged in the mixing cylinder and are uniformly distributed along the periphery of the mixing cylinder, and the spray guns are used for spraying liquid and heated air into the mixing tank.
2. The air flow enrobing apparatus of claim 1, wherein, The mixing tank further comprises a through pipe and an air floating plate, one end of the through pipe is communicated with the gas inlet cylinder and the other end is communicated with an air conveying machine, and the air floating plate is installed on one end of the mixing cylinder which is close to the gas inlet cylinder.
3. The air flow enrobing apparatus of claim 1, wherein, The stirring assembly comprises a hopper, a rotating shaft, a blade, a fixed plate, a vertical rod and a stirring power element, the hopper is installed in the mixing cylinder and is provided with a plurality of through holes, the rotating shaft penetrates the mixing cylinder and the hopper, the blade is installed on the rotating shaft, the fixed plate is arranged in the gas inlet cylinder and is provided with a plurality of air holes, one end of the vertical rod is installed on the bottom of the feeding cylinder and the other end is installed on the fixed plate, and the stirring power element is installed on the fixed plate and is used for driving the rotating shaft to rotate.
4. The air flow enrobing apparatus of claim 3, wherein, The stirring assembly further comprises a stirring blade which is installed on the rotating shaft and is installed on one side of the blade.
5. The easy-to-clean air-knitting apparatus of claim 1, wherein, The spray gun has a three-way structure, one end of the spray gun is communicated with an air heater, the second end is communicated with a liquid conveying machine, and the third end is communicated with the mixing cylinder.
6. The easy-to-clean air-knitting apparatus of claim 1, wherein, The feeding assembly further comprises a sealing plug which is installed on the mixing cylinder, and the spray gun is rotationally and / or slidingly connected to the sealing plug.
7. The easy-to-clean air-knitting apparatus of claim 1, wherein, The feeding assembly further comprises an air-liquid nozzle which is installed in the discharging cylinder and is used for spraying liquid and heated air into the mixing tank.
8. The easy-to-clean air-knitting apparatus of claim 1, wherein, The feeding assembly further comprises a material shaking device which is installed on the side wall of the discharging cylinder.
9. The easy-to-clean air-knitting apparatus of claim 1, wherein, The feeding assembly further comprises a heating element which covers the outer side of the mixing cylinder.
10. The easy-to-clean air-knitting apparatus of claim 1, wherein, The vibrator is an ultrasonic vibrator.