Powder coating fluidization device

Abstract

The invention discloses a powder coating fluidizing device. The powder coating fluidizing device comprises a base, the air inlet rotating mechanism comprises a rotary air cylinder arranged in the base and a transmission assembly in transmission connection with the rotary air cylinder, and a sealing unit is arranged on the transmission assembly; the powder storage mechanism is arranged at the upper part of the base; the fluidization mechanism comprises a fluidization pool arranged in the powder storage mechanism; the screw pump is arranged between the powder storage mechanism and the fluidization mechanism so as to convey the powder in the powder storage mechanism into the fluidization pool; wherein the transmission assembly is in transmission connection with the bottom of the fluidization pool so as to drive the fluidization pool to rotate and blow air into the fluidization pool. By arranging the sealing unit and the air blowing mechanism, when the transmission assembly works, the first sealing ring is blown open, an air layer gap is formed, and external dust is prevented from entering; when the dust collector does not work, the first sealing ring is tightly attached to the labyrinth seal to isolate external dust, the sensing assembly is provided with an air blowing opening, dust is prevented from being accumulated and agglomerated at the position of the sensor, and the amount of dust in the dust storage mechanism is prevented from being misjudged.

Description

Technical Field

[0001] The invention relates to the technical field of powder coating fluidization, in particular to a powder coating fluidization device. Background Art

[0002] Coating powder fluidization technology is a surface treatment technology widely used in modern industry, mainly used to form a uniform coating on the surface of various materials. This technology is based on the principle of fluidized bed, and by making the powder particles present a fluid state under the action of airflow, a uniform coating on the surface of the workpiece is achieved. The equipment used for coating powder fluidization in the prior art needs to fluidize the powder, so it is inevitable to use electrical equipment, so it is necessary to ensure the sealing of the electrical equipment during use, because in a closed environment, the concentration of dust reaches a certain level, and there is a risk of explosion when encountering electric sparks. The sealing equipment used for fluidized beds in the prior art is relatively simple, and most of them use sealing rings, but the diameter of dust particles is extremely small, and it is inevitable that they will slowly enter the electrical equipment during use. Long-term use of a large amount of dust enters the equipment, causing the equipment to age and cannot be used normally; in addition, during the use of the equipment, the amount of dust particles in the powder storage box needs to be detected to ensure that dust is added when it is insufficient. In the prior art, most of them are checked manually or detected by sensors. Manual checking is more troublesome, and sensor detection has the problem of misdetection due to dust accumulation and agglomeration in the detection storage. Summary of the invention

[0003] The object of the present invention is to provide a powder coating fluidization device with good sealing performance, uniform powder fluidization and dense coating.

[0004] In order to achieve the above object, a specific embodiment of the present invention provides a powder coating fluidization device, comprising: Base; The air intake rotating mechanism comprises a rotary cylinder arranged in the base and a transmission assembly connected to the rotary cylinder in a transmission manner, wherein a sealing unit is provided on the transmission assembly; A powder storage mechanism is arranged on the upper part of the base; A fluidizing mechanism, comprising a fluidizing tank disposed in the powder storage mechanism; A screw pump is arranged between the powder storage mechanism and the fluidization mechanism to transport the powder in the powder storage mechanism to the fluidization tank; The transmission assembly is in transmission connection with the bottom of the fluidized pool to drive the fluidized pool to rotate and blow air into the fluidized pool.

[0005] In one or more embodiments of the present invention, the transmission assembly includes a rotating shaft provided hollow. One end of the rotating shaft is rotatably connected to a swing cylinder, and the other end is rotatably connected to the bottom of the fluidization tank. One end of the rotating shaft close to the swing cylinder is communicated with a blowing mechanism through a first air inlet joint, and one end of the rotating shaft close to the fluidization tank is communicated with the fluidization tank through an air outlet joint. A shaft sleeve is connected to the outside of the rotating shaft through a bearing, and an air duct is arranged inside the shaft sleeve. One end of the air duct is connected to a second air inlet joint arranged at the bottom of the shaft sleeve, and the other end of the air duct is communicated with a sealing unit arranged on the shaft sleeve.

[0006] In one or more embodiments of the present invention, the sealing unit includes a lower labyrinth seal and an upper labyrinth seal that cooperate with each other. An air cavity formed between the lower labyrinth seal and the upper labyrinth seal is communicated with the air duct. A first sealing ring is also arranged at the connection part outside the lower labyrinth seal and the upper labyrinth seal. The first sealing ring is provided with an inclined part. When the swing cylinder works, the second air inlet joint conveys gas through the air duct to the inclined part of the first sealing ring to form an air outlet layer between the first sealing ring and the upper labyrinth seal. When the swing cylinder does not work, the inclined part of the first sealing ring closely adheres to the connection part of the lower labyrinth seal and the upper labyrinth seal.

[0007] In one or more embodiments of the present invention, an upper connection cover is arranged at the top of the upper labyrinth seal. The rotating shaft penetrates through the upper connection cover and is fixedly connected to a connecting plate. A shock absorber is arranged on the connecting plate, and the top of the shock absorber is fixedly installed on the bottom of the fluidization tank. The fluidization tank is fixedly installed with a first vibrator.

[0008] Among them, the stability of the rotation of the fluidized bed is ensured by setting the shock absorber, and mechanical vibration is provided by setting the first vibrator to help fluidize the dust particles.

[0009] The smoothness of the fluidized bed during operation is ensured by setting the first vibrator, so that it can produce a fluidized medium with uniform texture.

[0010] In one or more embodiments of the present invention, the powder storage mechanism includes a first outer shell, a first bottom plate and a fluidization plate. The first bottom plate is arranged at intervals on the base, the fluidization plate is installed on the first bottom plate, and there is a gap between the first bottom plate and the fluidization plate. The transmission assembly is installed on the fluidization plate through a lower connection cover. The first outer shell, the first bottom plate and the fluidization plate enclose a cavity for storing powder, and a detection assembly is installed on the side of the first outer shell.

[0011] In one or more embodiments of the present invention, the detection assembly includes a connecting member installed on the first housing, the other end of the connecting member is installed with a sensor for detecting the position of powder in the first housing, a fourth air inlet joint is provided on the connecting member, and the fourth air inlet joint is communicated with a blowing mechanism to blow off the powder adhering to the inner wall of the first housing.

[0012] Wherein, by providing a blowing interface at the sensor connection, the dust adhering near the sensor detection position can be blown off, thereby improving the accuracy of sensor detection.

[0013] In one or more embodiments of the present invention, the fluidization mechanism includes a second housing provided on the first housing, a fluidization tank is provided in the second housing, a first fluidization plate and a second fluidization plate are spaced apart in the fluidization tank, an air inlet hole is provided at the bottom of the fluidization tank, and the air inlet hole is communicated with an air outlet joint, a powder extraction cover is provided at the upper part of the second housing, the powder extraction cover is a multi-layer hollow splint structure, air holes are provided on the powder extraction cover, and a dust extraction port is provided on the outer side of the powder extraction cover.

[0014] Wherein, by providing a powder extraction cover on the second housing and cooperating with the dust extraction port to suck the dust at the upper part of the fluidized bed, it is avoided that these dusts fall into the fluidized bed and cause uneven fluidization medium.

[0015] In one or more embodiments of the present invention, the screw pump includes a pump body, a powder inlet is provided at the lower end of the pump body, the powder inlet is arranged in a powder storage mechanism, a powder outlet is provided at the upper part of the pump body, the powder outlet is arranged at the upper part of the fluidization tank, a motor is provided at the upper end of the pump body, the output end of the motor is connected with a speed reducer, the output end of the speed reducer is connected with a screw conveyor through a second coupling, the screw conveyor is rotationally installed in the pump body through a bearing, and when the screw conveyor rotates, the powder in the powder storage mechanism is conveyed from the powder inlet to the powder outlet.

[0016] In one or more embodiments of the present invention, a powder adding box is further included, the powder adding box includes a box body, the box body is fixedly installed on the base through a mounting plate, a cover plate is rotatably installed at the top of the box body, an operation port is provided at the side part of the box body, the bottom of the box body is communicated with the side part of the first housing through a powder inlet pipe, and a first vibrator is provided on the mounting plate.

[0017] Wherein, by providing a powder adding box, it is convenient to perform powder adding operation on the powder storage mechanism, and by providing a second vibrator, it is convenient for the dust to enter the powder storage mechanism.

[0018] In one or more embodiments of the present invention, a powder discharging mechanism is further included, and the powder discharging mechanism is installed on the side part of the first housing and is communicated with its interior.

[0019] The beneficial effects of the present invention are as follows: through the intake rotation mechanism, the fluidization tank rotates during operation, and by introducing air into it, a uniform and delicate fluid can be produced. By setting the sealing unit in cooperation with the air blowing mechanism, when the transmission component is operating, the first sealing ring is blown open, thereby forming an air layer gap at the gap where the transmission component is connected to the outside. This prevents external dust from entering the transmission component with difficulty and can also blow out the dust that has already entered the transmission component. At the same time, it avoids the friction between the first sealing ring and the labyrinth seal, extending its service life; when the transmission component is not operating, the inclined portion of the first sealing ring closely adheres to the labyrinth seal to isolate the channel for external dust to enter the transmission component. In the present invention, by providing an air blowing port on the sensing component, it is difficult for the dust in the powder storage mechanism to accumulate and caking at the sensor detection position, thereby reducing the situation of misjudgment of the dust amount in the powder storage mechanism by the sensor due to dust accumulation and caking. In the present invention, by blowing air inside the powder storage mechanism through the air blowing mechanism, it is equivalent to a preliminary shaking of the dust in the powder storage mechanism. When the dust is transported to the fluidized bed by the screw pump and mixed with other components, a uniform and dense fluidized medium is formed through the rotating air blowing mechanism. Description of the Drawings

[0020] Figure 1 is the overall schematic diagram of the powder coating fluidization device in an embodiment of the present invention; Figure 2 is the top view of the powder coating fluidization device in an embodiment of the present invention; Figure 3 is the cross-sectional view of the powder coating fluidization device in the C-C direction in an embodiment of the present invention; Figure 4 is the cross-sectional view of the powder coating fluidization device in the A-A direction in an embodiment of the present invention; Figure 5 is the partial view of the powder coating fluidization device at F in an embodiment of the present invention; Figure 6 is the top view of the transmission mechanism of the powder coating fluidization device in an embodiment of the present invention; Figure 7 is the cross-sectional view of the transmission mechanism of the powder coating fluidization device in the B-B direction in an embodiment of the present invention; Figure 8 is the partial view of the powder coating fluidization device at E in an embodiment of the present invention; Figure 9 is the front view of the screw pump of the powder coating fluidization device in an embodiment of the present invention; Figure 10 is the cross-sectional view of the screw pump of the powder coating fluidization device in an embodiment of the present invention.

[0021] In the figure Base 100; Intake rotary mechanism 200, slewing cylinder 21, first coupling 22, transmission assembly 23, first intake joint 231, rotating shaft 232, lower connecting cover 233, first seal 234, bushing 235, air passage 2351, air groove 2352, outlet joint 236, sealing unit 237, lower labyrinth seal 2371, upper labyrinth seal 2372, first sealing ring 2373, upper connecting cover 238, second intake joint 239, connecting plate 24, shock absorber 25, first vibrator 26; Powder storage mechanism 300, first housing 31, first bottom plate 32, fluidizing plate 33, third intake joint 34, sensor mounting port 35, inspection plate 36, detection assembly 37, sensor 371, fourth intake joint 372, connecting member 373, second sealing ring 375; Fluidization mechanism 400, second housing 41, fluidization tank 42, powder extraction hood 43, first fluidizing plate 44, second fluidizing plate 45, fluidization tank bottom plate 46, temperature sensor 47, dust extraction port 48; Screw pump 500, motor 51, speed reducer 52, powder outlet 53, pump body 54, second coupling 55, bearing 56, oil seal 57, auger 58, powder inlet 59; Powder adding box 600, box body 61, operation port 62, cover plate 63, air inlet 64, fixing member 65, mounting plate 66, second vibrator 67; Powder inlet pipe 700; Powder discharging mechanism 800. Specific embodiments

[0022] In order to enable those skilled in the art of the present technology to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "vertical", "horizontal", "top", "bottom", "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0024] It should be noted that unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0025] As described in the background art, the powder coating fluidization device in the prior art has poor sealing performance. When dust enters the transmission assembly, it is not only easy to cause blockage, but also prone to explosion when the dust concentration reaches a certain level and encounters an electric spark. Secondly, it is difficult for the sensors in the prior art to accurately detect the amount of dust in the powder storage tank.

[0026] In response to the above problems, as shown in the attached Figures 1 to 3 The present invention provides a powder coating fluidization device, including: a base 100, an air intake rotation mechanism 200, a powder storage mechanism 300, a fluidization mechanism 400, a screw pump 500, a powder adding tank 600, a powder inlet pipe 700, and a powder discharging mechanism 800. Among them, the base 100 is used to install the air intake rotation mechanism 200, the powder storage mechanism 300 is installed on the base 100, the powder storage mechanism 300 is used to store dust, the fluidization mechanism 400 is installed at the output end of the air intake rotation mechanism 200, the air intake rotation mechanism 200 is used to drive the fluidized bed 42 in the fluidization mechanism 400 to rotate and blow air into the fluidized bed 42, the screw pump 500 is connected to the fluidization mechanism 400 between the powder storage mechanism 300, and it is used to transport the dust inside the powder storage mechanism 300 into the fluidized bed 42 for fluidization and fluffing. The powder overflowing from the fluidized bed 42 to the bottom of the mechanism 400 is transported back into the fluidized bed 42 for fluidization. When the powder storage mechanism 300 lacks powder, powder can be added through the connection between the powder inlet pipe 700 and the powder adding tank 600, and the excess powder inside it can be discharged through the powder discharging mechanism 800; in addition, it also includes a blowing mechanism, and the blowing mechanism is a common air intake device in the prior art, so it will not be elaborated here.

[0027] As Figures 4 to 8As shown in the figure, the intake rotation mechanism 200 includes a rotary cylinder 21 disposed within the base 100 and a transmission assembly 23 drivingly connected to the rotary cylinder 21. A sealing unit 237 is provided on the transmission assembly 23. The transmission assembly 23 includes a hollow rotating shaft 232. One end of the rotating shaft 232 is rotatably connected to the rotary cylinder 21, and the other end is rotatably connected to the bottom of the fluidized bed 42. One end of the rotating shaft 232 near the rotary cylinder 21 is communicated with the blowing mechanism through a first intake joint 231, and one end of the rotating shaft 232 near the fluidized bed 42 is communicated with the fluidized bed 42 through an air outlet joint 236. An axle sleeve 235 is connected to the outside of the rotating shaft 232 through a bearing. An air passage 2351 is provided within the axle sleeve 235. One end of the air passage 2351 is connected to a second intake joint 239 disposed at the bottom of the axle sleeve 235, and the other end of the air passage 2351 is communicated with the sealing unit 237 provided on the axle sleeve 235. In this embodiment, the rotary cylinder 21 is a Festo DRRD rotary cylinder, and a through hole 211 is provided in the middle thereof. The blowing mechanism can blow air into the rotating shaft 232 through the through hole 211 and the first intake joint 231 to be in communication.

[0028] In a further embodiment, the sealing unit 237 includes a lower labyrinth seal 2371 and an upper labyrinth seal 2372 that cooperate with each other. An air cavity formed between the lower labyrinth seal 2371 and the upper labyrinth seal 2372 is communicated with the air passage 2351. A first sealing ring 2373 is further provided at the connection outside the lower labyrinth seal 2371 and the upper labyrinth seal 2372. The first sealing ring 2373 is provided with an inclined portion. When the rotary cylinder 21 is operating, the second intake joint 239 conveys gas through the air passage 2351 to the inclined portion of the first sealing ring 2373 to form an air outlet layer between the first sealing ring 2373 and the upper labyrinth seal 2372. When the rotary cylinder 21 is not operating, the inclined portion of the first sealing ring 2373 closely adheres to the connection between the lower labyrinth seal 2371 and the upper labyrinth seal 2372. In this embodiment, the first sealing ring 2373 is a V-shaped sealing ring. Normally, the V-shaped sealing ring has an inclined portion, and the leakage gap is sealed by closely adhering to the inclined portion. When the intake mechanism conveys gas through the air passage 2351 and the air groove 2352 to the inclined portion of the first sealing ring 2373 through the second intake joint 239, the inclined portion will be blown open to form a gap of a certain size, forming an annular air layer, thereby preventing external dust from entering the transmission assembly 23. At the same time, since the inclined portion of the first sealing ring 2373 is far from the upper labyrinth seal 2372, the wear degree of the first sealing ring 2373 is reduced, and its service life is extended.

[0029] In a further embodiment, an upper connection cover 238 is provided at the top of the upper labyrinth seal 2372. The rotating shaft 232 passes through the upper connection cover 238 and is fixedly connected to the connection plate 24. A shock absorber 25 is provided on the connection plate 24. The top of the shock absorber 25 is fixedly installed at the bottom of the fluidization tank 42. The fluidization tank 42 is fixedly installed with a first vibrator 26. In this embodiment, the first vibrator 26 vibrates the bottom of the fluidization tank 42, and cooperates with the internal air supply of the rotary blowing mechanism 200 to pass through the fluidization plate in the fluidization tank 42 to make the powder inside the fluidization tank 42 fluidized and fluffy. The shock absorber 25 ensures the stability when the fluidization tank 42 rotates.

[0030] As Figure 4 shown, the powder storage mechanism 300 includes a first housing 31, a first bottom plate 32, and a fluidization plate 33. The first housing 31 and the fluidization plate 32 enclose a cavity for storing powder; the first bottom plate 32 is spaced on the base 100, the fluidization plate 33 is installed on the first bottom plate 32, and there is a gap between the first bottom plate 32 and the fluidization plate 33. The transmission assembly 23 is installed on the fluidization plate 33 through the lower connection cover 233. A detection component 37 is installed on the side of the first housing 31 to detect the amount of powder in the cavity. When the powder drops to the position set by the detection component 37, the detection component generates a detection signal to inform relevant personnel to add powder. An inspection port and a sensor installation port 35 are also provided on the side of the first housing 31. An inspection plate 36 is detachably installed on the inspection port to facilitate relevant personnel to operate inside the cavity. In addition, third air inlet joints 34 are provided on the side of the first housing 31 and the bottom of the first bottom plate 32. The blowing mechanism can blow air into the cavity through the third air inlet joints 34 to make the dust in the cavity initially reach a fluffy state.

[0031] As Figure 5 shown, in a further embodiment, the detection component 37 includes a connecting member 373 installed on the first housing 31. The other end of the connecting member 373 is installed with a sensor 371 for detecting the position of the powder in the first housing 31. A fourth air inlet joint 372 is provided on the connecting member 373. The fourth air inlet joint 372 is communicated with the blowing mechanism to blow off the powder attached to the inner wall of the first housing 31. In this embodiment, by providing the fourth air inlet joint 372 at the position where the sensor detects, the powder near the detection component 37 in the cavity cannot accumulate and caking, so as to ensure the accuracy of the detection by the sensor 371. In a further embodiment, multiple groups of sensors can be provided to reduce the situation of misdetection.

[0032] In a further embodiment, as Figures 2 to 4As shown, the fluidization mechanism 400 includes a second housing 41 disposed on the first housing 31. A fluidization tank 42 is disposed within the second housing 41. In the fluidization tank 42, a first fluidization plate 44 and a second fluidization plate 45 are spaced apart. An air inlet hole 46 is formed at the bottom of the fluidization tank 42, and is connected to the air outlet joint 236 through the air inlet hole 46. A powder extraction hood 43 is provided at the upper part of the second housing 41. The powder extraction hood 43 is a multi-layer hollow sandwich structure. Air holes are formed on the powder extraction hood 43. A dust extraction port 48 is formed on the outside of the powder extraction hood 43. Through the dust extraction port 48 and the powder extraction hood 43, the dust floating out of the fluidization tank 42 can be extracted, further ensuring the uniformity of the fluidization medium in the fluidization tank 42.

[0033] In a further embodiment, as Figures 9 to 10 shown, the screw pump 500 includes a pump body 54. An inlet powder port 59 is provided at the lower end of the pump body 54, and the inlet powder port 59 is disposed within the powder storage mechanism 300. An outlet powder port 53 is provided at the upper part of the pump body 54, and the outlet powder port 53 is disposed at the upper part of the fluidization tank 42. A motor 51 is provided at the upper end of the pump body 54. The output end of the motor 51 is connected to a speed reducer 52. The output end of the speed reducer 52 is drivingly connected to a screw conveyor 58 through a second coupling 55. The screw conveyor 58 is rotatably mounted within the pump body 54 through a bearing 56. When the screw conveyor 58 rotates, the powder in the powder storage mechanism 300 is conveyed from the inlet powder port 59 to the outlet powder port 53. In a further embodiment, an oil seal 57 is further provided on the screw conveyor 58 to prevent the powder from being carried into the speed reducer 52 and / or the motor 51 during the rotation of the screw conveyor 58.

[0034] In a further embodiment, as Figures 1 to 3 shown, the powder adding box 600 includes a box body 61. The box body 61 is fixedly mounted on the base 100 through a mounting plate 66. A cover plate 63 is rotatably mounted at the top of the box body 61. An operation opening 62 is formed at the side of the box body 61. The bottom of the box body 61 is connected to the side of the first housing 31 through a powder inlet pipe 700. A second vibrator 67 is provided on the mounting plate 66. In this embodiment, when the sensor detects that the powder in the powder storage mechanism 300 is insufficient, powder is added into the powder adding mechanism by opening the cover plate 63. The bottom of the box body 61 is inclined downward towards the powder storage mechanism 300, and together with the second vibrator 67, it makes it easier for the powder to enter the powder storage mechanism 600 through the powder inlet pipe 700. The powder discharging mechanism 800 is mounted on the side of the first housing 31 and is in communication with its interior.

[0035] In the present invention, the intake rotating mechanism 200 enables the fluidization tank 42 to rotate during operation. By supplying air into it, a uniform and delicate fluid can be produced. By providing the sealing unit 237 in cooperation with the air blowing mechanism, when the transmission component 23 is operating, the first sealing ring 2373 is blown open, thereby forming an air layer gap at the gap where the transmission component 23 is connected to the outside. This prevents external dust from entering the transmission component 23 with difficulty and can also blow out the dust that has already entered the interior of the transmission component 23. At the same time, it avoids the friction between the first sealing ring 2373 and the labyrinth seal, extending its service life; when the transmission component 23 is not operating, the inclined portion of the first sealing ring 2373 closely adheres to the labyrinth seal to isolate the passage for external dust to enter the transmission component 23. In the present invention, by providing an air blowing port on the sensing component, it is difficult for the dust in the powder storage mechanism 300 to accumulate and cake at the detection position of the sensor 371, thereby reducing the situation of misjudgment of the dust amount in the powder storage mechanism 300 caused by dust accumulation and caking. In the present invention, by blowing air inside the powder storage mechanism 300 through the air blowing mechanism, it is equivalent to initially shaking the dust in the powder storage mechanism 300. When the dust is transported to the fluidization tank 42 by the screw pump 500 and mixed with other components, a powder fluidization uniform coating dense fluidized medium is formed through the rotating air blowing mechanism 200.

[0036] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A powder coating fluidization device, characterized in that Comprising: Base (100); Air intake rotating mechanism (200), including a rotary cylinder (21) disposed within the base (100) and a transmission assembly (23) in transmission connection with the rotary cylinder (21), and a sealing unit (237) is provided on the transmission assembly (23); Powder storage mechanism (300), disposed on the upper part of the base (100); Fluidization mechanism (400), including a fluidization pool (42) disposed within the powder storage mechanism (300); Screw pump (500), disposed between the powder storage mechanism (300) and the fluidization mechanism (400) to convey the powder in the powder storage mechanism (300) into the fluidization pool (42); Wherein, the transmission assembly (23) is in transmission connection with the bottom of the fluidization pool (42) to drive the fluidization pool (42) to rotate and blow air into the fluidization pool (42).

2. The powder coating fluidizing device according to claim 1, wherein The transmission assembly (23) includes a hollow rotating shaft (232), one end of the rotating shaft (232) is rotatably connected to the rotary cylinder (21), and the other end is rotatably connected to the bottom of the fluidization pool (42). One end of the rotating shaft (232) near the rotary cylinder (21) is in communication with a blowing mechanism through a first air intake joint (231), and one end of the rotating shaft (232) near the fluidization pool (42) is in communication with the fluidization pool (42) through an air outlet joint (236). An outer sleeve (235) is connected to the outside of the rotating shaft (232) through a bearing. An air passage (2351) is provided within the outer sleeve (235). One end of the air passage (2351) is connected to a second air intake joint (239) provided at the bottom of the outer sleeve (235), and the other end of the air passage (2351) is in communication with the sealing unit (237) provided on the outer sleeve (235).

3. The powder coating fluidization device according to claim 2, characterized in that, The sealing unit (237) includes a lower labyrinth seal (2371) and an upper labyrinth seal (2372) that cooperate with each other. An air cavity formed between the lower labyrinth seal (2371) and the upper labyrinth seal (2372) is in communication with the air passage (2351). A first sealing ring (2373) is further provided at the connection outside the lower labyrinth seal (2371) and the upper labyrinth seal (2372). The first sealing ring (2373) is provided with an inclined portion. When the rotary cylinder (21) operates, the second air intake joint (239) conveys gas through the air passage (2351) to the inclined portion of the first sealing ring (2373) to form an air outlet layer between the first sealing ring (2373) and the upper labyrinth seal (2372). When the rotary cylinder (21) does not operate, the inclined portion of the first sealing ring (2373) closely adheres to the connection between the lower labyrinth seal (2371) and the upper labyrinth seal (2372).

4. A powder coating fluidization device according to claim 3, characterized in that An upper connecting cover (238) is provided on the top of the upper labyrinth seal (2372), the rotating shaft (232) passes through the upper connecting cover (238) and is fixedly connected to the connecting plate (24), a vibration damper (25) is provided on the connecting plate (24), the top of the vibration damper (25) is fixedly mounted on the bottom of the fluidizing tank (42), and a first vibrator (26) is fixedly mounted on the fluidizing tank (42).

5. The powder coating fluidization device according to claim 1, wherein, The powder storage mechanism (300) comprises a first shell (31), a first bottom plate (32) and a fluidizing plate (33); the first bottom plate (32) is spaced apart on the base (100); the fluidizing plate (33) is mounted on the first bottom plate (32); a gap exists between the first bottom plate (32) and the fluidizing plate (33); the transmission assembly (23) is mounted on the fluidizing plate (33) via a lower connecting cover (233); the first shell (31) and the fluidizing plate (33) together form a cavity for storing powder; and a detection assembly (37) is mounted on the side of the first shell (31).

6. The powder coating fluidization device according to claim 5, characterized in that, The detection assembly (37) comprises a connecting piece (373) mounted on the first housing (31); a sensor (371) for detecting the position of powder in the first housing (31) is mounted on the other end of the connecting piece (373); a fourth air inlet connector (372) is provided on the connecting piece (373); the fourth air inlet connector (372) is connected to an air blowing mechanism to blow off powder attached to the inner wall of the first housing (31).

7. The powder coating fluidization device according to claim 2, wherein, The fluidizing mechanism (400) comprises a second shell (41) arranged on the first shell (31); the fluidizing pool (42) is arranged in the second shell (41); a first fluidizing plate (44) and a second fluidizing plate (45) are arranged in the fluidizing pool (42) at intervals; an air inlet (46) is provided at the bottom of the fluidizing pool (42), and the air inlet (46) is connected to the air outlet joint (236); a powder extraction cover (43) is provided on the upper part of the second shell (41); the powder extraction cover (43) is a multi-layer hollow splint structure; air holes are provided on the powder extraction cover (43); and a dust extraction port (48) is provided on the outer side of the powder extraction cover (43).

8. A powder coating fluidization device according to claim 7, characterized in that, The screw pump (500) comprises a pump body (54), the lower end of the pump body (54) being provided with a powder inlet (59), the powder inlet (59) being arranged in a powder storage mechanism (300), the upper part of the pump body (54) being provided with a powder outlet (53), the powder outlet (53) being arranged in an upper part of a fluidizing tank (42), the upper end of the pump body (54) being provided with a motor (51), the output end of the motor (51) being connected with a reducer (52), the output end of the reducer (52) being connected to an auger (58) through a second coupling (55), the auger (58) being rotatably mounted in the pump body (54) through a bearing (56), and the auger (58) conveys powder in the powder storage mechanism (300) from the powder inlet (59) to the powder outlet (53) when the auger (58) rotates.

9. A powder coating fluidization device according to claim 5, characterized in that, It further includes a powder adding box (600). The powder adding box (600) includes a box body (61). The box body (61) is fixedly installed on the base (100) through a mounting plate (66). A cover plate (63) is rotatably installed at the top of the box body (61). An operation opening is formed in the side of the box body (61). The bottom of the box body (61) is communicated with the side of the first outer shell (31) through a powder inlet pipe (700). A second vibrator (67) is provided on the mounting plate (66).

10. A powder coating fluidization device according to claim 5, characterized in that, It further includes a powder discharging mechanism (800). The powder discharging mechanism (800) is installed on the side of the first outer shell (31) and is communicated with its interior.

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