A multi-stage atomizing device

Abstract

This application relates to the field of metal powder preparation technology, and provides a multi-stage atomizing device, including a housing, a screen, and a collection box; the housing has a discharge port and a placement slot; it also includes an anti-clogging component, which includes a cleaning component, a first elastic component, a pull rod, and a connecting piece; one end of the cleaning component is rotatably connected to the end of the housing located at the discharge port away from the opening of the placement slot; the first elastic component is disposed between the cleaning component and the housing to drive the cleaning component away from the discharge port, and the cleaning component elastically abuts against the screen; the pull rod is slidably connected to the housing, and one end of the connecting piece is rotatably connected to the pull rod, and the other end is rotatably connected to the cleaning component. Based on this, the accumulation of metal powder at the discharge port can be minimized, thereby improving the collection effect of the collection box on metal powder.

Description

Technical Field

[0001] This application relates to the field of metal powder preparation, and in particular to a multi-stage atomizing device. Background Technology

[0002] Among the many metal powder preparation processes, a multi-stage atomization device is used to atomize the metal solution into metal powder, and then the multi-stage atomization device is used to sieve the metal powder to collect metal powder of different particle sizes.

[0003] In related technologies, multi-stage atomizing devices include a housing, an atomizing disc, and multiple screens with different apertures. The atomizing disc and multiple screens are all located in the housing, with the multiple screens positioned below the atomizing disc. The molten metal enters the atomizing disc through the feed inlet of the housing. The atomizing disc atomizes the molten metal into metal powder, which then falls onto the screens. The screens are tilted, and due to the different apertures of the screens, metal powder of different particle sizes falls onto different screens and onto different discharge outlets on the housing, where they are collected by a collection box.

[0004] However, in practical applications, since metal powder falls to the outlet by its own weight, it tends to accumulate at the outlet, resulting in poor collection efficiency of the collection box. Therefore, improvements are needed. Summary of the Invention

[0005] In order to minimize the accumulation of metal powder at the discharge port and improve the collection effect of the collection box on metal powder, this application provides a multi-stage atomization device.

[0006] The multi-stage atomizing device provided in this application adopts the following technical solution:

[0007] A multi-stage atomizing device includes a housing, a screen, and a collection box. The housing has a discharge port and a placement slot, the discharge port being connected to the placement slot, which extends to one side of the housing. The collection box is slidably connected to the placement slot. The screen is inclinedly disposed within the housing, with its lower end connected to the side of the discharge port away from the placement slot. The device also includes an anti-clogging component, comprising a cleaning element, a first elastic element, a pull rod, and a connecting piece. One end of the cleaning element is rotatably connected to the housing at the end of the discharge port away from the opening of the placement slot. The first elastic element is disposed between the cleaning element and the housing to drive the cleaning element away from the discharge port, and the cleaning element elastically abuts against the screen. The pull rod is slidably connected to the housing, and one end of the connecting piece is rotatably connected to the pull rod, while the other end is rotatably connected to the cleaning element.

[0008] By adopting the above technical solution, in practical applications, metal powder larger than the screen aperture falls into the collection box through the discharge port under its own gravity. When the metal powder accumulates at the discharge port, the pull rod is pulled outward. Since the two ends of the connection are respectively rotated and connected to the pull rod and the cleaning component, the cleaning component is driven to rotate, so that the cleaning component is close to the discharge port, thereby pushing the metal powder accumulated at the discharge port into the collection box, minimizing the accumulation of metal powder at the discharge port, and thus improving the collection effect of the collection box on metal powder collection.

[0009] When the pull rod is released, the first elastic element drives the cleaning element to rotate and reset, so that the cleaning element is away from the discharge port, thus avoiding the cleaning element from blocking the falling metal powder. In addition, the cleaning element elastically abuts against the screen, ensuring that the cleaning element is suitable for the inclined screen, thereby ensuring that the cleaning element can normally push the metal powder at the discharge port.

[0010] Preferably, the cleaning component includes a mounting plate, a cleaning plate, and a plurality of second elastic members; the mounting plate is rotatably connected to the housing and has a mounting groove on its lower side; the cleaning plate and the plurality of second elastic members are disposed in the mounting groove, and the cleaning plate protrudes from the mounting groove under the drive of the plurality of second elastic members, so that the cleaning plate fits against the screen.

[0011] By adopting the above technical solution, and by setting an installation plate, a cleaning plate, and multiple second elastic elements, the cleaning plate protrudes from the installation groove under the drive of the multiple second elastic elements, so that the cleaning plate elastically abuts against the screen, thereby realizing the elastic abutment of the cleaning component against the screen. Among them, the cleaning plate is attached to the screen, so that the cleaning plate can more fully push the metal powder into the collection box, and the rotation of the installation plate has a certain resistance, so that the pulling rod has a certain damping feeling, improving the pulling experience, and also slowing down the rotation speed of the installation plate to a certain extent, so that the cleaning plate can fully contact and push the metal powder at the discharge port.

[0012] Preferably, the cleaning component further includes a smoothing plate, which is disposed on the lower side of the cleaning plate and adheres to the screen.

[0013] By adopting the above technical solution and setting a smooth plate, the friction between the cleaning plate and the screen is reduced, and excessive friction between the cleaning plate and the screen is avoided as much as possible, which would make it difficult to pull the lever outward.

[0014] Preferably, the cleaning component further includes a scraper, which is disposed on the side of the cleaning plate near the discharge port.

[0015] By adopting the above technical solution and setting scrapers to remove the metal powder accumulated at the discharge port, the accumulation of metal powder at the discharge port is further prevented.

[0016] Preferably, the collection box includes a box body and an abutment block. The abutment block is located at one end of the box body away from the opening of the placement slot. The abutment block has an inclined first abutment portion on the side away from the discharge port. A connecting block protrudes from one side of the pull rod and abuts against the first abutment portion. When the box body is away from the placement slot, the first abutment portion drives the connecting block away from the discharge port, so that the pull rod is away from the chassis.

[0017] By adopting the above technical solution, and by setting up a box body, an abutment block, and a connecting block, in the initial state, the box body is placed in the placement groove, the cleaning component moves away from the discharge port under the action of the first elastic component, and the connecting block abuts against the first abutment part. During the process of the box body sliding out of the placement groove, due to the inclined setting of the first abutment part, the pull rod moves outward to drive the cleaning component to rotate, thereby pushing and collecting the metal powder at the discharge port into the box body. That is, during the process of taking out the collection box, the metal powder accumulated at the discharge port is cleaned and collected into the collection box, so as to improve the efficiency of metal powder collection.

[0018] Preferably, the abutting block is further provided with a second abutting part, the first abutting part and the second abutting part are spaced apart along the length direction of the box body, and the first abutting part and the second abutting part are symmetrically arranged.

[0019] By adopting the above technical solution and setting a second abutting part, when the box slides out of the placement groove, the connecting block abuts against the second abutting part, so that the cleaning part slowly resets under the drive of the first elastic part. This can effectively reduce the damage and wear caused by friction between the cleaning part and the screen, and can also minimize the violent collision between the cleaning part and the machine box.

[0020] Preferably, the connecting block has chamfers on both sides near the abutting block, and the two chamfers respectively cooperate with the first abutting part and the second abutting part.

[0021] By adopting the above technical solution and setting two chamfers, the connecting block can more tightly and stably abut against the first abutment part and the second abutment part.

[0022] Preferably, the anti-blocking component further includes a limiting ring, which is threadedly connected to the pull rod and abuts against the outside of the chassis.

[0023] By adopting the above technical solution, a limiting ring is set. When the limiting ring abuts against the outside of the machine box, it restricts the rotation of the cleaning part. The position of the cleaning part can be adjusted by adjusting the position of the limiting ring, so that the cleaning part blocks the discharge port and minimizes the possibility of metal powder falling into the placement tank when the collection box is removed.

[0024] Preferably, the multi-stage atomizing device further includes a shaking component, which includes a driving member and a shaking cam shaft. The shaking cam shaft is rotatably connected to the housing under the drive of the driving member. The shaking cam shaft abuts against the lower side of the screen away from the discharge port, and the end of the screen near the discharge port is rotatably connected to the housing.

[0025] By adopting the above technical solution, by setting a driving component and a vibrating cam, the driving component drives the vibrating cam to rotate, thereby causing the screen to swing back and forth, so that the metal powder can fall more fully into the collection box, thereby further preventing the metal powder from accumulating at the discharge port; and it also makes it easier for metal powder smaller than the screen aperture to fall into the next stage screen.

[0026] Preferably, the shaking assembly further includes a plurality of third elastic elements disposed between the housing and the screen to drive the screen to press against the shaking cam.

[0027] By adopting the above technical solution and setting multiple third elastic elements, the oscillation of the screen is made more stable, thereby making the screening of metal powder by the screen more stable.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. By pulling the lever outward, the two ends of the connection are respectively rotated and connected to the lever and the cleaning component, which drives the cleaning component to rotate, so that the cleaning component is close to the discharge port, thereby pushing the metal powder accumulated at the discharge port into the collection box, minimizing the accumulation of metal powder at the discharge port, and thus improving the collection box's effect on collecting metal powder.

[0030] 2. By setting an installation plate, a cleaning plate, and multiple second elastic elements, the cleaning plate protrudes out of the installation groove under the drive of the multiple second elastic elements, so that the cleaning plate elastically abuts against the screen, thereby realizing the elastic abutment of the cleaning element against the screen.

[0031] 3. By setting up a box body, an abutment block, and a connecting block, in the initial state, the box body is placed in the placement groove, the cleaning component moves away from the discharge port under the action of the first elastic component, and the connecting block abuts against the first abutment part. During the process of the box body sliding out of the placement groove, due to the inclined setting of the first abutment part, the pull rod moves outward to drive the cleaning component to rotate, thereby pushing the metal powder at the discharge port and collecting it in the box body. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the multi-stage atomizing device in the embodiments of this application;

[0033] Figure 2This is a cross-sectional structural diagram of the multi-stage atomizing device in an embodiment of this application;

[0034] Figure 3 yes Figure 2 Enlarged diagram of part A in the diagram;

[0035] Figure 4 This is a schematic diagram of the exploded structure of the cleaning component in the embodiments of this application;

[0036] Figure 5 This is a partial structural diagram of the multi-stage atomizing device in an embodiment of this application;

[0037] Figure 6 This is a schematic diagram of the connection structure between the collection box and the pull rod in an embodiment of this application.

[0038] Reference numerals: 1. Chassis; 11. Feed inlet; 12. Discharge outlet; 13. Placement slot; 2. Atomizing component; 3. Screen; 4. Collection box; 41. Box body; 42. Abutting block; 421. First abutting part; 422. Second abutting part; 5. Anti-clogging component; 51. Cleaning component; 511. Mounting plate; 512. Cleaning plate; 513. Second elastic component; 514. Smoothing plate; 515. Scraper; 52. First elastic component; 53. Pull rod; 531. Connecting block; 532. Chamfer; 54. Connecting piece; 55. Limiting ring; 6. Vibration component; 61. Vibration cam; 62. Third elastic component. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0040] This application discloses a multi-stage atomizing device.

[0041] Reference Figure 1 and Figure 2 The multi-stage atomizing device includes a housing 1, an atomizing component 2, a screen 3, a collection box 4, and an anti-clogging component 5. The upper end of the housing 1 is provided with an inlet 11 for the metal solution to enter. The atomizing component 2 is fixedly connected in the housing 1 and communicates with the inlet 11. The atomizing component 2 is existing technology, and its specific structure will not be described.

[0042] Reference Figure 2 The casing 1 is provided with a discharge port 12 and a placement slot 13. The discharge port 12 and the placement slot 13 are connected and spaced apart along the width direction of the casing 1. The placement slot 13 extends to one side of the casing 1, so that one end of the placement slot 13 is open. The collection box 4 slides along the length direction of the placement slot 13 and is connected to the placement slot 13.

[0043] The screen 3 is installed in the housing 1 and is inclined. The lower end of the screen 3 is connected to the discharge port 12, so that most of the metal powder on the screen 3 falls into the collection box 4 through the discharge port 12 under its own gravity. It should be noted that in this embodiment, there are three screens 3, which are arranged at intervals in the vertical direction. The lower screen 3 has a smaller aperture. Correspondingly, there are three discharge ports 12, three placement slots 13, three collection boxes 4, and three anti-clogging components 5.

[0044] Reference Figure 2 and Figure 3 The anti-clogging component 5 includes a cleaning member 51, a first elastic member 52, a pull rod 53, and a connecting piece 54. One end of the cleaning member 51 is rotatably connected to the end of the housing 1 located at the discharge port 12 away from the opening of the placement slot 13. The first elastic member 52 is a torsion spring, or in other embodiments, a spring. One end of the first elastic member 52 is fixedly connected to the cleaning member 51, and the other end is fixedly connected to the housing 1. The first elastic member 52 drives the cleaning member 51 to rotate, so that the cleaning member 51 moves away from the discharge port 12. The cleaning member 51 elastically abuts against the upper side of the screen 3, allowing the cleaning member 51 to fit the inclined screen 3, thereby ensuring that the cleaning member 51 can properly push the metal powder at the discharge port 12.

[0045] The pull rod 53 is a cylindrical rod that slides along the length of the housing 1 and is movably inserted into the placement slot 13. One end of the connecting piece 54 is rotatably connected to the pull rod 53, and the other end is rotatably connected to the cleaning component 51. The rotation axis of the connecting piece 54 is located on the side of the rotation axis of the cleaning component 51 closer to the opening of the placement slot 13. It should be noted that the pull rod 53 is limited to relative rotation with the housing 1 by limiting structures, such as limiting grooves and limiting strips.

[0046] When metal powder accumulates at the discharge port 12, the pull rod 53 is pulled outward (towards the end away from the cleaning member 51). Since one end of the connecting piece 54 is rotatably connected to the pull rod 53 and the other end is rotatably connected to the cleaning member 51, the connecting piece 54 drives the cleaning member 51 to rotate, bringing the cleaning member 51 closer to the discharge port 12. This pushes the metal powder accumulated at the discharge port 12 into the collection box 4, minimizing the accumulation of metal powder at the discharge port 12 and improving the collection efficiency of the collection box 4. During this process, the metal powder on the screen 3 is also pushed, thereby improving the collection efficiency. Afterward, when the pull rod 53 is released, the first elastic member 52 drives the cleaning member 51 to rotate and reset, moving the cleaning member 51 away from the discharge port 12 and bringing it closer to the inner wall of the casing 1, minimizing the obstruction of metal powder falling off the cleaning member 51.

[0047] Reference Figure 4In some embodiments, the cleaning component 51 includes a mounting plate 511, a cleaning plate 512, and a plurality of second elastic members 513. The mounting plate 511 is rotatably connected to the housing 1, so that the cleaning component 51 is rotatably connected to the housing 1. It should be noted that the first elastic member 52 is disposed on the mounting plate 511, and one end of the connecting piece 54 is rotatably connected to the mounting plate 511. A mounting groove (not shown in the figure) is formed on the lower side of the mounting plate 511 in the vertical direction. The cleaning plate 512 and the plurality of second elastic members 513 are disposed in the mounting groove. The second elastic members 513 are springs. One end of the plurality of second elastic members 513 is fixedly connected to the upper side of the cleaning plate 512, and the other end is fixedly connected to the top wall of the mounting plate 511 located in the mounting groove. The plurality of second elastic members 513 drive the cleaning plate 512 to protrude out of the mounting groove, so that the cleaning plate 512 fits against the screen 3, thereby realizing the elastic contact of the cleaning component 51 with the screen 3.

[0048] In practical applications, because the cleaning plate 512 is elastically attached to the upper side of the screen 3, it can more effectively push the metal powder at the screen 3 and the discharge port 12 into the collection box 4. In addition, the friction between the cleaning plate 512 and the upper side of the screen 3 creates resistance to the rotation of the mounting plate 511, providing a damping sensation to the pulling rod 53. This provides feedback to the operator, improving the pulling experience and also slowing down the rotation speed of the mounting plate 511 to a certain extent, ensuring that the cleaning plate 512 fully contacts and pushes the metal powder at the discharge port 12.

[0049] In some embodiments, the cleaning component 51 further includes a smoothing plate 514, which is fixedly connected to the lower side of the cleaning plate 512. Different smoothing plates 514 with varying coefficients of friction can be selected based on the working conditions. This minimizes the friction between the cleaning plate 512 and the screen 3 while ensuring adequate damping when pulling the rod 53, thus facilitating the outward pulling of the rod 53. It should be noted that the upper part of the smoothing plate 514 has a certain degree of elasticity to accommodate the inclined screen 3.

[0050] In some embodiments, the cleaning component 51 further includes a scraper 515, which is fixedly connected to the side of the cleaning plate 512 near the discharge port 12 and is fixedly connected to the smooth plate 514. The side of the scraper 515 away from the smooth plate 514 is spiked to scrape off the metal powder accumulated at the discharge port 12, thereby further preventing the metal powder from accumulating at the discharge port 12 and also scraping off the metal powder remaining on the screen 3.

[0051] Reference Figure 5 and Figure 6In some embodiments, the collection box 4 includes a box body 41 and an abutment block 42. The box body 41 is slidably connected to the placement groove 13, and the abutment block 42 is fixedly connected to the end of the box body 41 away from the opening of the placement groove 13 and abuts against the bottom wall of the housing 1 located in the placement groove 13. The abutment block 42 has a first abutment portion 421 on the side away from the discharge port 12. The first abutment portion 421 is inclined and the length of the end away from the box body 41 is greater than the length of the end near the box body 41. Correspondingly, a rectangular connecting block 531 protrudes from the lower side of the pull rod 53. Under the action of the first elastic member 52, the connecting block 531 abuts against the first abutment portion 421 to achieve tight abutment of the collection box 4, thereby improving the stability of the collection box 4.

[0052] Furthermore, during the process of the box body 41 sliding out of the placement slot 13, since the connecting block 531 abuts against the inclined first abutment part 421, the first abutment part 421 drives the connecting block 531 away from the discharge port 12, causing the pull rod 53 to move outward, which can drive the cleaning part 51 to rotate, thereby pushing the metal powder at the discharge port 12 and collecting it in the box body 41. That is, when the collection box 4 is taken out, the metal powder accumulated at the discharge port 12 can be automatically cleaned and collected in the collection box 4. The operation is simple and convenient, and it can also improve the efficiency of metal powder collection.

[0053] In some embodiments, the abutting block 42 is further provided with a second abutting part 422. The first abutting part 421 and the second abutting part 422 are spaced apart along the length direction of the box body 41 and are symmetrically arranged. During the process of the box body 41 sliding out of the placement groove 13, after the connecting block 531 releases its abutment against the first abutting part 421, the box body 41 continues to slide outward, so that the connecting block 531 abuts against the second abutting part 422. The second abutting part 422 can ensure that the cleaning part 51 slowly resets under the drive of the first elastic member 52, which can effectively reduce the damage and wear caused by friction between the cleaning plate 512 and the screen 3, and can also minimize the violent collision between the mounting plate 511 and the chassis 1, thereby improving the service life of the cleaning part 51.

[0054] In some embodiments, the connecting block 531 has chamfers 532 on both sides near the abutting block 42. One chamfer 532 cooperates with the first abutting part 421, and the other chamfer 532 cooperates with the second abutting part 422, so that the connecting block 531 can abut against the first abutting part 421 and the second abutting part 422 more tightly and stably. When the box body 41 slides into the placement groove 13, the connecting block 531 abuts against the second abutting part 422 through the chamfer 532, so as to place the collection box 4 into the placement groove 13.

[0055] Reference Figure 2In some embodiments, the anti-blocking component 5 further includes a limiting ring 55, which is threadedly connected to the pull rod 53. The first elastic element 52 drives the pull rod 53 to reset, so that the limiting ring 55 abuts against the outside of the housing 1. By rotating the limiting ring 55, the position of the limiting ring 55 is adjusted, thereby adjusting the position of the mounting plate 511, so that the cleaning plate 512 blocks the discharge port 12, and tries to prevent metal powder from falling into the placement groove 13 when the collection box 4 is removed.

[0056] In some embodiments, the multi-stage atomizing device further includes a shaking component 6, which includes a driving member (not shown) and a shaking cam 61. The driving member is a motor and is fixedly connected to the housing 1. The shaking cam 61 is rotatably connected to the housing 1 and fixedly connected to the power output shaft of the driving member, so that the driving member drives the shaking cam 61 to rotate. The lower end of the screen 3 is rotatably connected to the housing 1, and the shaking cam 61 abuts against the lower side of the higher end of the screen 3. During the rotation of the shaking cam 61 driven by the driving member, the screen 3 swings back and forth, allowing the metal powder to fall more fully into the collection box 4, thereby further preventing the metal powder from accumulating at the outlet 12 and making it easier for metal powder smaller than the aperture of the screen 3 to fall into the lower screen 3.

[0057] In some embodiments, the shaking assembly 6 further includes a plurality of third elastic elements 62, which are also springs. One end of the third elastic element 62 is fixedly connected to the upper side of the screen 3, and the other end is fixedly connected to the housing 1, so that the screen 3 is pressed against the shaking cam 61 under the drive of the third elastic element 62. The third elastic element 62 can drive the screen 3 to reset and can further connect the screen 3, so that the swing of the screen 3 is more stable, thereby making the screening of metal powder by the screen 3 more stable.

[0058] The implementation principle of this embodiment is as follows: When metal powder accumulates at the discharge port 12, the pull rod 53 is pulled outward. One end of the connecting piece 54 is rotatably connected to the pull rod 53, and the other end is rotatably connected to the cleaning member 51. This causes the connecting piece 54 to drive the cleaning member 51 to rotate, bringing the cleaning member 51 closer to the discharge port 12. This pushes the metal powder accumulated at the discharge port 12 into the collection box 4, minimizing the accumulation of metal powder at the discharge port 12 and improving the collection efficiency of the collection box 4. During this process, the metal powder on the screen 3 is also pushed, thereby improving the collection efficiency. Afterward, when the pull rod 53 is released, the first elastic member 52 drives the cleaning member 51 to rotate and reset, moving the cleaning member 51 away from the discharge port 12 and bringing it closer to the inner wall of the casing 1, minimizing the obstruction of metal powder falling off the cleaning member 51.

[0059] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-stage atomizing device, comprising a housing (1), a screen (3), and a collection box (4); the housing (1) is provided with a discharge port (12) and a placement groove (13), the discharge port (12) being connected to the placement groove (13), and the placement groove (13) extending to one side of the housing (1); the collection box (4) is slidably connected to the placement groove (13); the screen (3) is inclinedly disposed in the housing (1), and its lower end is connected to the side of the discharge port (12) away from the placement groove (13); characterized in that, It also includes an anti-clogging component (5), which includes a cleaning component (51), a first elastic component (52), a pull rod (53), and a connecting piece (54); one end of the cleaning component (51) is rotatably connected to the end of the housing (1) located at the discharge port (12) away from the opening of the placement groove (13); the first elastic component (52) is disposed between the cleaning component (51) and the housing (1) to drive the cleaning component (51) away from the discharge port (12), and the cleaning component (51) elastically abuts against the screen (3); the pull rod (53) is slidably connected to the housing (1), one end of the connecting piece (54) is rotatably connected to the pull rod (53), and the other end is rotatably connected to the cleaning component (51); The cleaning component (51) includes a mounting plate (511), a cleaning plate (512), and a plurality of second elastic members (513); the mounting plate (511) is rotatably connected to the housing (1) and has a mounting groove on its lower side; the cleaning plate (512) and the plurality of second elastic members (513) are disposed in the mounting groove, and the cleaning plate (512) protrudes out of the mounting groove under the drive of the plurality of second elastic members (513) so that the cleaning plate (512) fits against the screen (3); The collection box (4) includes a box body (41) and an abutment block (42). The abutment block (42) is located at one end of the box body (41) away from the opening of the placement slot (13). The abutment block (42) has an inclined first abutment portion (421) on the side away from the discharge port (12). A connecting block (531) protrudes from one side of the pull rod (53) and abuts against the first abutment portion (421). When the box body (41) is away from the placement slot (13), the first abutment portion (421) drives the connecting block (531) away from the discharge port (12) so that the pull rod (53) is away from the chassis (1). The abutting block (42) is further provided with a second abutting part (422), the first abutting part (421) and the second abutting part (422) are spaced apart along the length direction of the box body (41), and the first abutting part (421) and the second abutting part (422) are symmetrically arranged; The connecting block (531) has chamfers (532) on both sides near the abutting block (42), and the two chamfers (532) respectively cooperate with the first abutting part (421) and the second abutting part (422).

2. The multi-stage atomizing device according to claim 1, characterized in that, The cleaning component (51) also includes a smoothing plate (514), which is located on the underside of the cleaning plate (512).

3. The multi-stage atomizing device according to claim 1, characterized in that, The cleaning component (51) also includes a scraper (515), which is disposed on the side of the cleaning plate (512) near the discharge port (12).

4. The multi-stage atomizing device according to claim 1, characterized in that, The anti-blocking component (5) also includes a limiting ring (55), which is threaded to the pull rod (53) and abuts against the outside of the chassis (1).

5. The multi-stage atomizing device according to claim 1, characterized in that, The multi-stage atomizing device also includes a shaking component (6), which includes a driving member and a shaking cam (61). The shaking cam (61) is rotatably connected to the housing (1) under the drive of the driving member. The shaking cam (61) abuts against the lower side of the end of the screen (3) away from the outlet (12), and the end of the screen (3) near the outlet (12) is rotatably connected to the housing (1).

6. The multi-stage atomizing device according to claim 5, characterized in that, The shaking assembly (6) also includes a plurality of third elastic elements (62), which are disposed between the housing (1) and the screen (3) to drive the screen (3) to press against the shaking cam (61).

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