Rapid dust-free powder feeding station

Abstract

The invention relates to the technical field of powder processing, and particularly discloses a rapid dust-free powder feeding station which comprises a first connecting support and a feeding outer shell arranged on the first connecting support, the upper end of the feeding outer shell is communicated with a dust collector, and the upper end of the dust collector is connected with a dust collection pump. The dust suction pump is connected with a control mechanism on the outer side of the feeding outer shell through a connecting line on the dust suction pump. A screening hopper communicating with the feeding outer shell is arranged at the bottom of the first connecting support. According to the rapid dust-free powder feeding station, the overlapped hole diameter of powder screening meshes is adjusted by rotating the screen sleeve, powder of different particle sizes can be screened, meanwhile, after the diameter is adjusted, remaining particle powder can be automatically cleaned and discharged, and the powder feeding efficiency is improved. And it is prevented that blocking is caused in the first screen mesh holes, the second screen mesh holes and the third screen mesh holes, later use is affected, manual operation time is shortened, and working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder processing, in particular to a quick dust-free powder feeding station. BACKGROUND

[0002] The dust-free feeding station, also known as a dust-free vibrating screen, is a screening device that achieves dust suppression through closed design and negative pressure airflow control. Its core features are the fully enclosed structure and dust emission control technology, making it suitable for industries with high cleanliness requirements such as food and medicine.

[0003] The existing dust-free vibrating screen pours the raw materials into the interior of the vibrating screen, performs vibrating screening, and discharges and collects the screened particles from the screen mesh. By replacing the screen mesh, different particle size powder materials can be screened, such as: The environmental protection type dust-free feeding station provided in the publication No. CN113120644A includes a dust-free feeding station body, a feeding cavity is arranged on the dust-free feeding station body, a feeding preliminary screening device is arranged on the feeding cavity, a buffer filtering screening device is arranged in the feeding cavity, the feeding preliminary screening device includes a feeding box, the feeding box is arranged at the top of the feeding cavity, the top of the feeding box is open, the bottom of the feeding box is in communication with the feeding cavity, a box cover is hingedly arranged on the top opening of the feeding box, a grid-shaped conveyor belt and a screen plate are sequentially arranged in the feeding box from top to bottom, left and right material pouring plates are arranged on the inner wall of the feeding cavity above the grid-shaped conveyor belt, and a plurality of upper oscillation rod groups are arranged on the inner wall of the feeding box between the left and right material pouring plates. The present application can effectively remove the dust generated during feeding through layer-by-layer screening of the material, and reduces environmental pollution.

[0004] The existing technical solution has the following defects: the existing dust-free feeding station needs to replace the screen mesh when screening different particle size powder materials, which is not convenient for automatic adjustment of the mesh, and the adjusted screen mesh cannot automatically collect the remaining powder, and the mesh is easily blocked during screening. Therefore, the present application provides a quick dust-free powder feeding station to solve the above problems. SUMMARY

[0005] The present application aims to provide a quick dust-free powder feeding station to solve the problems of replacing the screen mesh when screening different particle size powder materials, which is not convenient for automatic adjustment of the mesh, and the adjusted screen mesh cannot automatically collect the remaining powder, and the mesh is easily blocked during screening.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a kind of powder quick dust-free feeding station, comprising: first connecting support, and the outer shell of material inlet is arranged on the first connecting support, the upper end of the outer shell of material inlet is connected with dust collector, and the upper end of dust collector is connected with dust suction pump, and dust suction pump is connected with the control mechanism outside the outer shell of material inlet by the connecting line on it; The bottom of the first connecting support is provided with a sieve hopper communicated with the outer shell of material inlet, and the outer side of the sieve hopper is provided with a second connecting support, the outer surface of the sieve hopper is provided with an adapter plate, and the outer end of the adapter plate is fixed with a vibrator by bolts, the inside of the sieve hopper is superimposed with a first sieve net sleeve and a second sieve net sleeve, the inside of the first sieve net sleeve and the second sieve net sleeve is respectively provided with a first sieve net hole and a second sieve net hole, wherein the first sieve net sleeve and the second sieve net sleeve are relatively rotated to adjust the overlapping range of the first sieve net hole and the second sieve net hole by the adapter assembly arranged at the bottom.

[0007] As a preferred technical scheme of the present application, the outer end of the sieve hopper is provided with a first motor, and the output end of the first motor is connected with an adapter disc, and the outer side of the adapter disc is provided with a limiting block connected to the outer surface of the second sieve net sleeve.

[0008] As a preferred technical scheme of the present application, the limiting block and the adapter disc are connected in meshing mode.

[0009] As a preferred technical scheme of the present application, the first sieve net hole and the second sieve net hole are uniformly opened at equal angles on the outer surfaces of the first sieve net sleeve and the second sieve net sleeve, respectively, and the outer surface of the first sieve net sleeve is attached to the inner wall of the second sieve net sleeve, and the first sieve net sleeve is connected by clamping the positioning block and the second sieve net sleeve; The top outer end of the first sieve net sleeve is connected with a positioning block, and the outer end of the second sieve net sleeve is provided with a limiting rod.

[0010] As a preferred technical scheme of the present application, the adapter assembly includes a first sieve net plate arranged at the bottom of the first sieve net sleeve, the second sieve net sleeve is provided with a second sieve net plate at the bottom, and the upper end of the first sieve net plate is symmetrically provided with a first auxiliary block, the upper end of the second sieve net plate is symmetrically connected with a second auxiliary block, the inside of the first sieve net plate and the second sieve net plate is uniformly provided with a third sieve net hole, the shaft center of the second sieve net plate is provided with a mounting shell, and the inside of the mounting shell is mounted with a second motor; The first sieve net sleeve is connected by clamping the first auxiliary block and the first sieve net plate; The second motor is connected with the first sieve net sleeve through the output end to play the role of adjusting the gap.

[0011] As a preferred technical scheme of the present application, the inner side of the screening hopper is provided with a mounting groove, and a third electric mounting telescopic rod is arranged inside the mounting groove.

[0012] As a preferred technical scheme of the present application, the inner wall of the screening hopper is provided with a second electric mounting telescopic rod, and a first cleaning brush is connected to the outer side of the second electric mounting telescopic rod, the inner side of the first screening net sleeve is provided with a bearing plate, and the bearing plate is connected to a second cleaning brush through an electric telescopic rod.

[0013] As a preferred technical scheme of the present application, the second screening net sleeve is oppositely clamped to the second screening net plate through a second auxiliary block, the lower surface of the second screening net plate is arranged in abutment with the upper surface of the connecting bottom plate, and the inside of the connecting bottom plate is provided with a hole structure at equal angles.

[0014] As a preferred technical scheme of the present application, the connecting plate is connected to the second connecting support through the telescopic spring at the lower end thereof, the outer end of the material inlet outer shell body is rotatably connected to a shell cover, and the outer end of the shell cover is rotatably connected to a first electric mounting telescopic rod.

[0015] As a preferred technical scheme of the present application, the limiting rods are symmetrically arranged at the outer end of the second screening net sleeve, and the limiting rods are slidably connected to the screening hopper through the connecting grooves at the outer sides thereof.

[0016] Compared with the prior art, the present application has the following beneficial effects: the powder rapid dust-free feeding station can adjust the overlapping pore size of the powder screening mesh through the rotating screening net sleeve, can screen the powder with different particle sizes, can automatically clean and discharge the remaining particle powder after adjusting the diameter, prevents the first screening mesh and the second screening mesh and the third screening mesh from being blocked, reduces the manual operation time, and improves the work efficiency. 1. The bottom of the first screening net sleeve and the second screening net sleeve is provided with an adjustable connecting assembly, the first screening net sleeve is clamped and connected to the first screening net plate through a first auxiliary block, the first screening net plate drives the first auxiliary block, the first screening net sleeve rotates, the first screening mesh and the second screening mesh are evenly arranged at equal angles on the outer surfaces of the first screening net sleeve and the second screening net sleeve, the outer surface of the first screening net sleeve is arranged in abutment with the inner wall of the second screening net sleeve, the overlapping pores of the first screening mesh and the second screening mesh adjust the size of the screening pores, and the first screening net sleeve and the second screening net sleeve can be used for screening the powder with different particles under the cooperation of rotation. 2、By limiting block and adapter disc with meshing way of connection, the second screen sleeve is driven to rotate, and the bottom of the second screen sleeve is fixed with the installation shell through bolts, so that the second screen sleeve drives the first screen sleeve to rotate under the rotation of the second screen sleeve, the powder in the first screen sleeve is screened and rotated to the outside of the first screen hole through the screen holes in the first screen hole and the second screen hole, the limiting rods are symmetrically arranged at the outer end of the second screen sleeve, and the limiting rods are slidably connected with the screening hopper through the adapter slots on the outer side of the limiting rods, so that the limiting rods slide in the adapter slots when the second screen sleeve rotates, thereby stably moving the second screen sleeve; 3、The second screen sleeve is arranged in opposite abutting relationship with the second screen plate through the second auxiliary block, the adapter bottom plate drives the first screen plate and the second screen plate to disengage, so that the first auxiliary block and the second auxiliary block are disengaged from the first screen sleeve and the second screen sleeve respectively, the first cleaning brush is moved by the second electrically operated installation telescopic rod, so that the first cleaning brush is attached to the outer surface of the second screen sleeve, the second screen sleeve is driven to rotate under the rotation of the adapter disc, thereby wiping and cleaning the powder in the first screen hole and the second screen hole, preventing the hole from being blocked, the second cleaning brush is moved downward by the electrically operated telescopic rod, so that the second cleaning brush is attached to the surface of the first screen plate, the remaining large particle powder on the surface of the first screen plate is rotated and concentrated under the rotation of the second screen sleeve and discharged from the bottom of the screening hopper, thereby facilitating simultaneous cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the connection between the second screen sleeve and the first screen plate of the present application; Figure 3 It is a schematic diagram of the overall cross-sectional structure of the connection between the first screen plate and the second screen plate of the present application; Figure 4 It is a schematic diagram of the overall cross-sectional structure of the connection between the first screen plate and the second screen plate of the present application; Figure 2 It is a schematic diagram of the enlarged structure of position A in the present application; Figure 5 It is a schematic diagram of the overall cross-sectional structure of the connection between the limiting rod and the second screen sleeve of the present application; Figure 6 It is a schematic diagram of the overall cross-sectional structure of the connection between the limiting block and the second screen sleeve of the present application; Figure 7 It is a schematic diagram of the overall cross-sectional structure of the connection between the second motor and the first screen plate of the present application; Figure 8 It is a schematic diagram of the enlarged structure of position B in the present application; Figure 6 Figure 9 ​This is a schematic diagram of the overall exploded structure of the connection between the first screen sleeve and the second screen sleeve of the present invention.

[0018] In the diagram: 1. First connecting bracket; 2. Feeding housing; 3. Vacuum cleaner; 4. Vacuum pump; 5. Connecting wire; 6. Control mechanism; 7. Housing cover; 8. First electrically operated telescopic rod; 9. Feed inlet; 10. Screen hopper; 11. Second connecting bracket; 12. Telescopic spring; 13. Connecting plate; 14. Vibrator; 15. First motor; 16. Connecting disc; 17. Connecting groove; 18. First cleaning brush; 19. Second electrically operated telescopic rod; 20. First 21. Screen sleeve; 22. First screen hole; 23. Positioning block; 24. Second screen sleeve; 25. Second screen hole; 26. First screen plate; 27. Second screen plate; 28. First auxiliary block; 29. ​​Second auxiliary block; 30. Third screen hole; 31. Mounting housing; 32. Second motor; 33. Connecting base plate; 34. Third electric mounting telescopic rod; 35. Mounting groove; 36. Limiting block; 37. Limiting rod; 38. Bearing plate; 39. Second cleaning brush. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-9 This invention provides a technical solution: a rapid dust-free powder feeding station, comprising a first connecting bracket 1, a feeding shell 2, a vacuum cleaner 3, a vacuum pump 4, a connecting line 5, a control mechanism 6, a shell cover 7, a first electrically operated telescopic rod 8, a feeding port 9, a sieve hopper 10, a second connecting bracket 11, a telescopic spring 12, a connecting plate 13, a vibrator 14, a first motor 15, a connecting disc 16, a connecting groove 17, a first cleaning brush 18, a second electrically operated telescopic rod 19, a first screen sleeve 20, a first screen hole 21, a positioning block 22, a second screen sleeve 23, a second screen hole 24, a first screen plate 25, a second screen plate 26, a first auxiliary block 27, a second auxiliary block 28, a third screen hole 29, a mounting shell 30, a second motor 31, a connecting base plate 32, a third electrically operated telescopic rod 33, a mounting groove 34, a limiting block 35, a limiting rod 36, a bearing plate 37, and a second cleaning brush 38.

[0021] When using this powder rapid dust-free feeding station, the specific details are as follows: Figure 1 and Figure 2The first connecting support 1 is provided with an inlet shell 2, the upper end of the inlet shell 2 is communicated with a dust collector 3, the upper end of the dust collector 3 is connected with a dust suction pump 4, the dust suction pump 4 is connected with a control mechanism 6 outside the inlet shell 2 through a connecting line 5, the dust collector 3 is opened by starting the control mechanism 6, the first connecting support 1 is internally provided with an inlet opening 9, the powder is put into the inlet shell 2 through the inlet opening 9, the outer end of the inlet shell 2 is rotationally connected with a shell cover 7, the outer end of the shell cover 7 is rotationally connected with a first electrically-operated mounting telescopic rod 8, the outer end of the first electrically-operated mounting telescopic rod 8 is rotated at the outer end of the shell cover 7 and the inlet shell 2 by starting the first electrically-operated mounting telescopic rod 8, at the same time, the shell cover 7 is rotated at the outer end of the inlet shell 2, thereby the outer end of the inlet shell 2 is closed by the shell cover 7, preventing the powder dust from being discharged from the inlet opening 9 after the powder is put into the inlet shell 2, affecting the environment, after the powder is put into the inlet shell 2, the control mechanism 6 is started, the dust suction pump 4 is started by the control mechanism 6, the dust in the inlet shell 2 is sucked and discharged by the dust collector 3, making the whole work in a dust-free state.

[0022] Specifically as Figure 3 , Figure 4 and Figure 7The bottom of the first connecting support 1 is provided with a screening hopper 10 communicated with the feeding shell 2. When the dust is poured into the feeding shell 2, the dust enters the inside of the screening hopper 10 through the feeding shell 2. The inside of the screening hopper 10 is respectively provided with a first screen sleeve 20 and a second screen sleeve 23. The inside of the first screen sleeve 20 is provided with a first screen hole 21, and the inside of the second screen sleeve 23 is provided with a second screen hole 24. The first screen sleeve 20 and the second screen sleeve 23 are respectively provided with adjustable connecting assemblies at the bottom. The connecting assembly comprises a first screen plate 25 arranged at the bottom of the first screen sleeve 20, and a second screen plate 26 arranged at the bottom of the second screen sleeve 23. The upper end of the first screen plate 25 is symmetrically provided with a first auxiliary block 27, and the upper end of the second screen plate 26 is symmetrically connected with a second auxiliary block 28. The inside of the first screen plate 25 and the second screen plate 26 is uniformly provided with a third screen hole 29. The first screen plate 25 is driven to rotate by the first screen sleeve 20, so that the third screen hole 29 in the first screen plate 25 and the second screen plate 26 is adjusted. The shaft of the second screen plate 26 is provided with a mounting shell 30, and the inside of the mounting shell 30 is provided with a second motor 31. The first screen plate 25 is driven to rotate by the second motor 31. When the first screen plate 25 rotates, the first screen sleeve 20 is connected with the first screen plate 25 through the first auxiliary block 27. The first screen plate 25 drives the first auxiliary block 27 to rotate the first screen sleeve 20. The first screen hole 21 and the second screen hole 24 are uniformly arranged on the outer surface of the first screen sleeve 20 and the second screen sleeve 23 at equal angles. The outer surface of the first screen sleeve 20 is arranged in close contact with the inner wall of the second screen sleeve 23. The holes on the first screen hole 21 and the second screen hole 24 are staggered. The size of the screen hole is adjusted by the coincident holes of the first screen hole 21 and the second screen hole 24. The structure is ingenious, the operation is simple, and the screening efficiency is improved. The outer side of the screening hopper 10 is provided with a second connecting bracket 11, the outer surface of the screening hopper 10 is provided with an adapter plate 13, and the outer end of the adapter plate 13 is fixed with a vibrator 14 by bolts, the adapter plate 13 is connected with the second connecting bracket 11 through the extension spring 12 at the lower end thereof, and the vibrator 14 is started, at this time the extension spring 12 is extended and retracted, so that the adapter plate 13 shakes and screens the screening hopper 10, and at the same time of screening, the outer end of the screening hopper 10 is provided with a first motor 15, the output end of the first motor 15 is connected with an adapter disc 16, the outer side of the adapter disc 16 is provided with a limiting block 35 connected to the outer surface of the second screen sleeve 23, and the first motor 15 is started at the same time of screening, so as to drive the adapter disc 16 at the output end of the first motor 15 to rotate, when the adapter disc 16 rotates, the limiting block 35 is connected to the adapter disc 16 in a meshing manner, so as to drive the second screen sleeve 23 to rotate, the bottom of the second screen sleeve 23 is fixed with a mounting shell 30 by bolts, so that the second screen sleeve 23 drives the first screen sleeve 20 to rotate under the rotation of the second screen sleeve 23, the powder in the first screen sleeve 20 is screened and rotated to be discharged to the outside of the first screen hole 21 through the screen holes in the first screen hole 21 and the second screen hole 24, at the same time of rotation of the second screen sleeve 23, the outer end of the second screen sleeve 23 is provided with a limiting rod 36, the limiting rod 36 is symmetrically arranged at the outer end of the second screen sleeve 23, and the limiting rod 36 is slidably connected with the screening hopper 10 through the adapter groove 17 at the outer side thereof, when the second screen sleeve 23 rotates, the limiting rod 36 slides in the adapter groove 17, so as to stably move the second screen sleeve 23, the bottom of the second screen sleeve 23 is in abutment with the adapter bottom plate 32, and the lower surface of the second screen plate 26 is in abutment with the upper surface of the adapter bottom plate 32, so as to support the rotation of the second screen sleeve 23, and the adapter bottom plate 32 is provided with a hole structure at equal angles, the powder in the screening hole is discharged from the groove of the adapter bottom plate 32 to the bottom of the screening hopper 10, and the rotation of the first screen sleeve 20 and the second screen sleeve 23 can screen powder with different particles.

[0023] Specifically as Figure 5 、 Figure 6 、 Figure 8 and Figure 9The outer end of the top of the first screen sleeve 20 is connected with a positioning block 22, the second motor 31 is connected with the first screen sleeve 20 through an output end to play a role in adjusting the gap, when the second motor 31 is started, the first screen sleeve 20 is driven to rotate, at the same time, the positioning block 22 slides at the outer end of the second screen sleeve 23, and the first screen sleeve 20 is connected with the second screen sleeve 23 through the positioning block 22, the inside of the screening hopper 10 is provided with a mounting groove 34, and the inside of the mounting groove 34 is provided with a third electric mounting telescopic rod 33, the upper end of the third electric mounting telescopic rod 33 is provided with a connecting bottom plate 32, after the powder is screened, the powder that is not discharged from the inside of the first screen hole 21 and the second screen hole 24 is in the inside of the first screen sleeve 20 and the surface of the first screen plate 25, and the third electric mounting telescopic rod 33 is started, at this time, the third electric mounting telescopic rod 33 slides the connecting bottom plate 32 in the inside of the mounting groove 34, and the second screen sleeve 23 supports the first screen sleeve 20 through the positioning block 22; Under the action of gravity, the second screen sleeve 23 is relatively clamped with the second screen plate 26 through the second auxiliary block 28, the connecting bottom plate 32 drives the first screen plate 25 and the second screen plate 26 to separate, so that the first auxiliary block 27 and the second auxiliary block 28 are separated from the first screen sleeve 20 and the second screen sleeve 23 respectively, the inner wall of the screening hopper 10 is provided with a second electric mounting telescopic rod 19, and the outer side of the second electric mounting telescopic rod 19 is connected with a first cleaning brush 18, the first cleaning brush 18 is moved by the second electric mounting telescopic rod 19, so that the first cleaning brush 18 is attached to the outer surface of the second screen sleeve 23, under the rotation of the connecting disc 16, the second screen sleeve 23 is driven to rotate, so that the powder in the first screen hole 21 and the second screen hole 24 is wiped and cleaned, to prevent the hole from being blocked, the inside of the first screen sleeve 20 is provided with a bearing plate 37, and the bearing plate 37 is connected with a second cleaning brush 38 through an electric telescopic rod, and under the starting of the electric telescopic rod, the electric telescopic rod drives the second cleaning brush 38 to move downward, so that the second cleaning brush 38 is attached to the surface of the first screen plate 25, the remaining large particle powder on the surface of the first screen plate 25 is rotated and concentrated under the rotation of the second screen sleeve 23 and is discharged from the bottom of the screening hopper 10, which is convenient for simultaneous cleaning, convenient operation, reduces manual operation time, and improves the automation level, which is the use method of the powder rapid dust-free feeding station.

[0024] The standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here. The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0025] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements for part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fast dust-free powder dosing station, comprising: First connecting support (1), and the inlet shell (2) arranged on the first connecting support (1), the upper end of the inlet shell (2) is communicated with a dust collector (3), the upper end of the dust collector (3) is connected with a dust pump (4), and the dust pump (4) is connected with a control mechanism (6) outside the inlet shell (2) through a connecting line (5) arranged thereon; It is characterized by further comprising: The bottom of the first connecting support (1) is provided with a screening hopper (10) communicated with the inlet shell (2), and the outer side of the screening hopper (10) is provided with a second connecting support (11), the outer surface of the screening hopper (10) is provided with an adapter plate (13), and the outer end of the adapter plate (13) is fixed with a vibrator (14) through a bolt, the inside of the screening hopper (10) is overlapped with a first screen sleeve (20) and a second screen sleeve (23), the inside of the first screen sleeve (20) and the second screen sleeve (23) is respectively provided with a first screen hole (21) and a second screen hole (24), wherein the first screen sleeve (20) and the second screen sleeve (23) are relatively rotated to adjust the overlapping range of the first screen hole (21) and the second screen hole (24) through the adapter assembly arranged at the bottom.

2. A quick dust-free powder feeding station according to claim 1, characterized in that: The outer end of the screening hopper (10) is provided with a first motor (15), the output end of the first motor (15) is connected with an adapter disc (16), and the outer side of the adapter disc (16) is provided with a limiting block (35) connected to the outer surface of the second screen sleeve (23).

3. A quick dust-free powder feeding station according to claim 2, characterized in that: The limiting block (35) and the adapter disc (16) are connected in meshing mode.

4. A quick dust-free powder feeding station according to claim 1, characterized in that: The first screen hole (21) and the second screen hole (24) are evenly arranged at equal angles on the outer surfaces of the first screen sleeve (20) and the second screen sleeve (23), respectively, the outer surface of the first screen sleeve (20) is attached to the inner wall of the second screen sleeve (23), and the first screen sleeve (20) is connected to the second screen sleeve (23) through the positioning block (22). The top outer end of the first screen sleeve (20) is connected with a positioning block (22), and the outer end of the second screen sleeve (23) is provided with a limiting rod (36).

5. A quick dust-free powder feeding station according to claim 1, characterized in that: The adapter assembly comprises a first screen plate (25) arranged at the bottom of the first screen sleeve (20), the bottom of the second screen sleeve (23) is provided with a second screen plate (26), the upper end of the first screen plate (25) is symmetrically provided with a first auxiliary block (27), the upper end of the second screen plate (26) is symmetrically connected with a second auxiliary block (28), the inside of the first screen plate (25) and the second screen plate (26) is evenly provided with a third screen hole (29), the shaft center of the second screen plate (26) is provided with a mounting shell (30), and the inside of the mounting shell (30) is mounted with a second motor (31). The first screen sleeve (20) is connected to the first screen plate (25) through the first auxiliary block (27). The second motor (31) is connected to the first screen sleeve (20) through the output end to adjust the gap.

6. A quick dust-free powder feeding station according to claim 5, characterized in that: The inner side of the screening hopper (10) is provided with a mounting groove (34), and the inside of the mounting groove (34) is provided with a third electric mounting telescopic rod (33), and the upper end of the third electric mounting telescopic rod (33) is provided with a connecting bottom plate (32).

7. A quick dust-free powder feeding station according to claim 1, characterized in that: The inner wall of the screening hopper (10) is provided with a second electric mounting telescopic rod (19), and the outer side of the second electric mounting telescopic rod (19) is connected with a first cleaning brush (18), the inner side of the first screen mesh sleeve (20) is provided with a bearing plate (37), and the bearing plate (37) is connected with a second cleaning brush (38) through an electric telescopic rod.

8. A quick dust-free powder feeding station according to claim 6, characterized in that: The second screen mesh sleeve (23) is oppositely clamped with the second screen mesh plate (26) through the second auxiliary block (28), the lower surface of the second screen mesh plate (26) is abutted with the upper surface of the connecting bottom plate (32), and the inside of the connecting bottom plate (32) is provided with a hole structure at equal angles.

9. A quick dust-free powder feeding station according to claim 5, characterized in that: The connecting plate (13) is connected with the second connecting support (11) through the telescopic spring (12) at the lower end, the outer end of the inlet shell (2) is rotatably connected with a shell cover (7), and the outer end of the shell cover (7) is rotatably connected with a first electric mounting telescopic rod (8).

10. A quick dust-free powder feeding station according to claim 4, characterized in that: The limiting rod (36) is symmetrically arranged at the outer end of the second screen mesh sleeve (23), and the limiting rod (36) is slidably connected with the screening hopper (10) through the connecting groove (17) at the outer side.

Images