Powder discharging structure of powder bin

Abstract

The utility model discloses a powder outlet structure of a powder bin, which comprises a powder bin body provided with a powder outlet, and the powder outlet is provided with a flexible skirt edge; and the powder outlet piece is movably arranged in the powder bin body and used for pushing powder to be discharged from the powder outlet, and the powder outlet piece can interact with the flexible skirt edge when moving so that the flexible skirt edge can shake. According to the utility model, the flexible skirt edge shakes, so that a powder accumulation structure near the powder outlet is damaged, and the powder becomes loose again and is easy to flow. The powder outlet piece is not only used for pushing the powder to be discharged from the powder outlet, but also realizes dynamic intervention on the powder near the powder outlet through interaction with the flexible skirt edge. The dynamic intervention is helpful for preventing the powder from forming a stable static layer at the powder outlet, so that the risk of blockage is reduced. And meanwhile, the low-cost and low-energy-consumption anti-blocking effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of powder conveying technology, and in particular to a powder hopper discharge structure. Background Technology

[0002] In industrial practice of powder handling and conveying, outlet blockage is a long-standing technical problem. It not only hinders the smooth flow of powder but can also increase production line downtime, severely impacting production efficiency and cost control. Currently, various solutions exist for outlet blockage, but each method has its inherent limitations and shortcomings.

[0003] Existing technologies for solving powder outlet blockage include mechanical anti-blocking schemes, airflow anti-blocking technology, and electrostatic elimination. Firstly, mechanical anti-blocking schemes use mechanical components, such as rotating brushes, installed near the powder outlet to physically intervene in the powder outlet area, disrupting the powder's accumulation structure and preventing blockage. However, since the area inside the powder outlet cannot be intervened, the blockage problem is not ideally solved. Secondly, airflow anti-blocking technology uses compressed or inert gas to create an airflow through nozzles to purge the powder outlet, maintaining powder flow and preventing blockage. Such devices consume significant energy, increasing production costs. Finally, electrostatic elimination is typically suitable for specific types of powder or specific working environments, limiting its application and also presenting a high cost issue. Utility Model Content

[0004] To overcome at least one of the defects described in the prior art, this utility model provides a powder hopper discharge structure. This solves the problem of powder outlet blockage while also reducing cost and energy consumption.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A powder hopper discharge structure includes: a powder hopper body having a powder outlet with a flexible skirt; and a powder discharge component movably disposed within the powder hopper body for pushing powder out of the powder outlet. The powder discharge component interacts with the flexible skirt during movement to cause the flexible skirt to vibrate.

[0007] By employing the above-described scheme, the vibration of the flexible skirt disrupts the powder accumulation structure near the powder outlet, making the powder loose and easily flowable again. The powder outlet component not only propels the powder out of the outlet but also dynamically intervenes in the powder near the outlet through its interaction with the flexible skirt. This dynamic intervention helps prevent the formation of a stable, stagnant layer of powder at the outlet, thereby reducing the risk of clogging. Simultaneously, it achieves a low-cost and low-energy anti-clogging effect.

[0008] Furthermore, the flexible skirt is provided with at least one protrusion so that the powder dispensing component can drive the flexible skirt to make a shaking motion.

[0009] By adopting the above solution, the protrusion design increases the friction area or contact point when the powder outlet contacts the flexible skirt, enabling the powder outlet to more effectively drive the flexible skirt to shake during movement.

[0010] Furthermore, the powder outlet is provided with at least one flexible skirt along the pushing direction of the powder outlet component.

[0011] By adopting the above solution, since the flexible skirt is set along the pushing direction of the powder outlet, when the powder outlet pushes the powder forward, the flexible skirt can continuously contact the powder and vibrate. This helps to prevent the powder from accumulating or clumping at the powder outlet, thereby enhancing the anti-clogging capability.

[0012] Furthermore, when the pushing direction of the powder outlet is different from the circumferential direction of the powder hopper body, at least one flexible skirt is provided along the circumferential direction of the powder hopper body, and the flexible skirts are spaced apart from each other and are provided independently.

[0013] By adopting the above solution, a wider area of ​​the powder outlet can be covered, and the accumulation or clumping of powder around the outlet can be prevented more effectively. This spaced and independently set flexible skirt design allows each skirt to independently shake and guide the powder, thereby enhancing the overall anti-clogging effect.

[0014] Furthermore, a sealing plate is provided outside the powder outlet, and the sealing plate is sealed to the powder outlet.

[0015] By adopting the above solution, the presence of the sealing plate can effectively prevent dust from leaking into the external environment, while also preventing external dust from entering through the powder outlet and contaminating the powder.

[0016] Furthermore, the powder discharging component includes: a rotating component; and blades, the blades being arranged circumferentially along the rotating component, the blades being driven by the rotating component to push the material, and interacting with the protrusions to cause the flexible skirt to vibrate.

[0017] By adopting the above scheme, the blades are arranged circumferentially along the rotating component, effectively propelling the powder forward as the component rotates. This feeding method is not only highly efficient but also ensures a uniform distribution of powder near the outlet.

[0018] Furthermore, the powder discharging component also includes a sweeping component, which is connected to the end of the rotating component. The sweeping component and the blade rotate synchronously with the rotating component to drive different flexible skirts to vibrate.

[0019] By adopting the above-mentioned scheme, the shaking effect is made more significant. It not only propels the powder forward along with the blades, but also, through its specific shape and trajectory, more effectively stimulates the shaking of the flexible skirt. This shaking is not limited to a single area, but covers a wider area of ​​the powder outlet, thus more effectively preventing powder blockage.

[0020] Furthermore, there are two or more sweeping members, and the two or more sweeping members are arranged at equal intervals along the circumference of the rotating member.

[0021] By adopting the above solution, a more uniform mixing and pushing effect can be formed within the powder hopper. This helps ensure a more even distribution of powder near the powder outlet, reducing the risk of blockage caused by powder accumulation or excessively high local concentrations.

[0022] Furthermore, the powder hopper body includes a powder hopper shell, a powder hopper cover, and a stirring mechanism. The powder hopper shell includes a lower driving layer and an upper storage layer. A partition plate is provided between the driving layer and the storage layer. The partition plate is provided with a discharge hole and a drive shaft hole. The stirring mechanism is assembled in the storage layer and is drivenly connected to the powder outlet component.

[0023] By adopting the above scheme, the drive layer and storage layer inside the powder silo shell are separated by a partition plate, making the internal structure of the powder silo clear and the functional areas well-defined. The discharge holes on the partition plate allow powdered materials to smoothly enter the drive layer from the storage layer. The drive connection between the stirring mechanism and the powder outlet is reliably constructed to ensure that there will be no loosening or detachment during the stirring process, thereby improving the safety of the equipment.

[0024] Furthermore, the edge of the partition plate is provided with an upwardly inclined annular region, and the stirring mechanism is in contact with and abuts the annular region so that the powder material in the annular region is moved into the feeding hole by the stirring mechanism.

[0025] By adopting the above scheme, the agitator fits snugly against the annular area, allowing the agitator blades to more effectively contact the powder material at the edge of the powder hopper, reducing the agitation blind zone. The upwardly inclined annular area guides the powder material to flow into the feed hole. Driven by the agitator, the powder material can smoothly slide into the feed hole along the inclined surface of the annular area, avoiding powder accumulation and blockage.

[0026] In summary, the powder dispensing structure of the powder hopper provided by this utility model has the following technical effects:

[0027] 1. By incorporating a flexible skirt at the powder outlet and interacting with it through the movement of the powder outlet component, the flexible skirt vibrates, thereby disrupting the powder accumulation structure near the outlet. This dynamic intervention effectively prevents the formation of a stable static layer of powder at the outlet, significantly reducing the risk of clogging.

[0028] 2. The vibration of the flexible skirt not only helps break up powder buildup but also loosens the powder and makes it easier to flow. This helps ensure that the powder flows smoothly from the outlet, improving powder flowability;

[0029] 3. Compared with traditional mechanical anti-clogging solutions, airflow anti-clogging technologies, and electrostatic elimination methods, this invention achieves low-cost and low-energy-consumption anti-clogging effects through a combination of simple mechanical structures and flexible materials. This helps reduce production costs and improve economic efficiency.

[0030] 4. The powder hopper's discharge structure has a relatively simple design, yet it is highly functional. It can adapt to the processing needs of powders of different types, particle sizes, and characteristics. Whether the powder is highly viscous or has good flowability, this structure can achieve effective powder discharge and anti-clogging effects. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model;

[0032] Figure 2 This is a schematic diagram of the internal structure of Embodiment 1 of the present invention;

[0033] Figure 3 This is a cross-sectional structural diagram of Embodiment 1 of the present invention;

[0034] Figure 4 This is an exploded structural diagram of Embodiment 1 of the present invention;

[0035] Figure 5 This is a schematic diagram of the disassembled structure of the drive gear set in Embodiment 1 of this utility model;

[0036] Figure 6 This is a schematic diagram of the internal structure of the powder hopper shell in Embodiment 1 of this utility model;

[0037] Figure 7 This is a partial exploded structural diagram of Embodiment 2 of the present invention;

[0038] Figure 8 This is a schematic diagram of the exploded structure of the internal parts in Embodiment 2 of this utility model;

[0039] Figure 9 This is a schematic diagram of the powder outlet structure of Embodiment 2 of this utility model.

[0040] The meanings of the reference numerals in the attached drawings are as follows: 1. Powder hopper body; 11. Powder outlet; 12. Flexible skirt; 121. Protrusion; 13. Sealing plate; 2. Powder outlet component; 21. Rotating component; 211. Blade; 22. Sweeping component; 3. Powder hopper shell; 31. Drive layer; 32. Storage layer; 321. Columnar channel; 33. Insertion hole; 34. Rotating sleeve; 35. Plug; 4. Powder hopper cover; 5. Stirring mechanism; 51. Stirring blade; 511. Inclined surface; 52. Rotating shaft; 6. Spacing plate; 61. Feeding hole; 62. Drive shaft hole; 63. Circular area; 7. Main drive rod; 8. Drive gear set; 81. First bevel gear; 811. First helical gear; 812. First spur gear; 82. Second bevel gear; 821. Second helical gear; 822. Second spur gear; 83. Double-layer gear; 831. First gear disc; 832. Second gear disc; 84. Stirring drive gear; 9. Annular plate; 91. Adaptive boss. Detailed Implementation

[0041] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.

[0042] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0043] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0045] See the embodiments of this utility model. Figures 1-9As shown, a powder hopper discharge structure is disclosed, including a powder hopper body 1 and a powder discharge component 2. The powder hopper body 1 has a powder outlet 11, which is provided with a flexible skirt 12. The powder discharge component 2 is movably disposed within the powder hopper body 1 and is used to push the powder out of the powder outlet 11. When the powder discharge component 2 moves, it can interact with the flexible skirt 12, causing the flexible skirt 12 to vibrate. This vibration of the flexible skirt 12 disrupts the powder accumulation structure near the powder outlet 11, making the powder loose and easy to flow again. The powder discharge component 2 not only pushes the powder out of the powder outlet 11, but also achieves dynamic intervention of the powder near the powder outlet 11 through its interaction with the flexible skirt 12. This dynamic intervention helps prevent the powder from forming a stable static layer at the powder outlet 11, thereby reducing the risk of clogging. It also achieves a low-cost and low-energy-consumption anti-clogging effect.

[0046] It should be noted that the flexible skirt 12 is provided with at least one protrusion 121, so that the powder dispensing component 2 can drive the flexible skirt 12 to vibrate. The design of the protrusion 121 increases the friction area or contact point when the powder dispensing component 2 contacts the flexible skirt 12, so that the powder dispensing component 2 can more effectively drive the flexible skirt 12 to vibrate during movement. Preferably, the powder outlet 11 is provided with at least one flexible skirt 12 along the pushing direction of the powder dispensing component 2. Since the flexible skirt 12 is arranged along the pushing direction of the powder dispensing component 2, when the powder dispensing component 2 pushes the powder forward, the flexible skirt 12 can continuously contact the powder and vibrate. This helps to prevent the powder from accumulating or agglomerating at the powder outlet 11, thereby enhancing the anti-clogging capability. When the pushing direction of the powder outlet 2 is different from the circumferential direction of the powder hopper body 1, at least one flexible skirt 12 is provided along the circumferential direction of the powder hopper body 1. The flexible skirts 12 are spaced apart and independently arranged, which can cover a wider area of ​​the powder outlet 11 and more effectively prevent the powder from accumulating or clumping around the powder outlet 11. This spaced and independently arranged flexible skirt 12 design allows each skirt to independently shake and guide the powder, thereby enhancing the overall anti-clogging effect.

[0047] The following is a description using specific embodiments:

[0048] Example 1

[0049] A powder hopper discharge structure, wherein the powder hopper body 1 is a spiral-driven material feeding mechanism; for details, please refer to [reference needed]. Figure 1-6As shown, the powder hopper body 1 includes a powder hopper shell 3, a powder hopper cover 4, and a stirring mechanism 5. The powder hopper shell 3 and the powder hopper cover 4 are threaded together. The powder hopper shell 3 includes a lower driving layer 31 and an upper storage layer 32. A partition plate 6 is provided between the driving layer 31 and the storage layer 32. Preferably, the partition plate 6 in this embodiment 1 is disc-shaped and integrally formed with the powder hopper shell 3. The partition plate 6 is provided with a discharge hole 61 and a drive shaft hole 62. The stirring mechanism 5 is assembled on the storage layer 32 and is drivenly connected to the powder outlet 2. The edge of the partition plate 6 is provided with an upwardly inclined annular region 63. The stirring mechanism 5 fits against the annular region 63 so that the powder material in the annular region 63 is moved into the discharge hole 61 by the stirring mechanism 5. Preferably, the stirring mechanism 5 includes a stirring blade 51 and a rotating shaft 52. The stirring blade 51 is drivenly connected to the rotating shaft 52, and the bottom edge of the stirring blade 51 is provided with an inclined surface 511 that fits against the annular region 63, so as to push the powder in the storage layer 32 to the discharge hole 61 and enter the driving layer 31. The driving layer 31 is provided with a cylindrical channel 321 communicating with the discharge hole 61. The cylindrical channel 321 is used to place the powder outlet 2. In this embodiment 1, the powder outlet 2 includes a rotating member 21 and a blade 211. Preferably, the rotating member 21 is a rotating rod, and the blade 211 is spirally arranged around the rotating member 21. The blade 211 is driven by the rotating member 21 to push the material. The bottom of the cylindrical channel 321 near the edge of the powder hopper shell 3 is provided with an opening for discharging the material. The powder outlet 11 is provided with Preferably, an annular plate 9 is provided below the opening, and the annular plate 9 is provided with an upwardly facing adapter protrusion 91. The adapter protrusion 91 is adapted to the cylindrical channel 321. The powder outlet 11 is provided on the adapter protrusion 91 so that the powder outlet 11 is directly facing the opening. The powder outlet 11 is curved, and a flexible skirt 12 is provided on the side near the rotating member 21. One end of the blade 211 extends beyond the flexible skirt 12 so that the blade 211 can interact with the flexible skirt 12 to vibrate and avoid material blockage. Preferably, a protrusion 121 is also provided above the flexible skirt 12. The number of protrusions 121 is preferably two or more, and they are arranged perpendicular to the powder outlet direction so that the blade 211 can interact with the flexible skirt 12 in sequence to vibrate.

[0050] In some embodiments, since the powder outlet 11 has a flexible skirt 12 on only one side and the contact area with the blade 211 is small, flexible skirts 12 can also be provided on the two edges of the powder outlet 11 parallel to the rotating member 21. Each of the two flexible skirts 12 has an elongated protrusion 121. The powder outlet member 2 also includes a sweeping member 22 connected to the end of the rotating member 21. The sweeping member 22 and the blade 211 rotate synchronously with the rotating member 21 to drive the two parallel flexible skirts 12 to interact. The interaction with the protrusion 121 on the flexible skirts 12 causes the flexible skirts 12 to vibrate. The sweeping member 22 makes the vibration effect more significant. It can not only propel the powder forward together with the blade 211, but also more effectively stimulate the vibration of the flexible skirts 12 through its specific shape and movement trajectory. This vibration is not limited to a single area, but can cover a wider area of ​​the powder outlet 11, thereby more effectively preventing powder blockage. Two or more sweeping elements 22 are provided, and the two or more sweeping elements 22 are arranged at equal intervals along the circumference of the rotating element 21. This can create a more uniform stirring and pushing effect in the powder hopper. This helps to ensure a more uniform distribution of powder near the powder outlet 11, reducing the risk of blockage caused by powder accumulation or excessively high local concentration.

[0051] In some embodiments, to make the rotation of the rotating component 21 more stable, an insertion hole 33 for rotatably connecting the rotating component 21 is provided on the side wall of the powder hopper housing 3, and a plug 35 is provided outside the insertion hole 33. Optionally, a rotating sleeve 34 is also provided between the insertion hole 33 and the rotating component 21 to reduce frictional loss between the rotating component 21 and the powder hopper housing 3, and the rotating sleeve 34 is snapped and fixed to the insertion hole 33.

[0052] The rotating component 21 is driven to rotate by a driving structure. Specifically, the driving structure includes a driving gear set 8 and a main driving rod 7. The driving gear set 8 includes a first bevel gear 81, a second bevel gear 82, a double-layer gear 83, and a stirring driving gear 84. The main driving rod 7 passes through the first bevel gear 81 and is driven to it. The first bevel gear 81 includes a first helical tooth 811 and a first spur tooth 812. The second bevel gear 82 includes a second helical tooth 821 and a second spur tooth 822. The double-layer gear 83 includes a first helical tooth 811 and a second spur tooth 822. A first toothed disc 831 and a second toothed disc 832 are provided. The first helical tooth 811 meshes with the second helical tooth 821, and the first spur tooth 812 meshes with the first toothed disc 831. The second spur tooth 822 is coaxially driven to the end of the rotating member 21. The second toothed disc 832 meshes with the stirring drive tooth 84, which drives the rotating shaft 52 of the stirring mechanism 5 to rotate. Therefore, the rotation of the main drive rod 7 can simultaneously drive the rotating member 21 and the rotating shaft 52 of the stirring mechanism 5 to rotate, saving power. In other embodiments, the drive structure is not specifically limited, as long as the same effect is achieved.

[0053] Example 2

[0054] A powder silo discharge structure, wherein the powder silo body 1 is a blade 211 type agitator for feeding. For details, please refer to [reference needed]. Figure 7-9As shown, the powder hopper body 1 includes a powder hopper shell 3, a powder hopper cover 4, and a stirring mechanism 5. The powder hopper shell 3 and the powder hopper cover 4 are threaded together. The powder hopper shell 3 includes a lower driving layer 31 and an upper storage layer 32. A partition plate 6 is provided between the driving layer 31 and the storage layer 32. Preferably, the partition plate 6 in this embodiment 2 is disc-shaped and is snap-fitted to the powder hopper shell 3. The partition plate 6 is provided with a discharge hole 61 and a drive shaft hole 62. The stirring mechanism 5 is assembled on the storage layer 32 and is drivenly connected to the powder outlet 2. The edge of the partition plate 6 is provided with an upwardly inclined annular region 63. The stirring mechanism 5 fits against the annular region 63 so that the powder material in the annular region 63 is moved into the discharge hole 61 by the stirring mechanism 5. Preferably, the stirring mechanism 5 includes a stirring blade 51 and a rotating shaft 52. The stirring blade 51 is drivenly connected to the rotating shaft 52, and the bottom edge of the stirring blade 51 is provided with an inclined surface 511 that fits against the annular region 63, so as to push the powder in the storage layer 32 to the discharge hole 61 and enter the driving layer 31. The driving layer 31 is provided with a powder outlet 2 coaxial with the stirring mechanism 5. In this embodiment 2, the powder outlet 2 includes a rotating component 21 and blades 211. Preferably, the rotating component 21 is a turntable, and the blades 211 are equally spaced around the rotating component 21. The blades 211 are rotated by the rotating component 21, and the powder outlet 11 is located at the driving layer 31. The bottom edge of the moving layer 31 is covered by the sweeping range of the blade 211, which can cover the powder outlet 11. Therefore, the discharge direction of the powder outlet 11 is the rotation direction of the blade 211. Flexible skirts 12 are provided on both sides of the powder outlet 11 that are perpendicular to the rotation direction of the blade 211. Optionally, flexible skirts 12 can also be provided on the other two sides so that the blade 211 can interact with the flexible skirts 12 to vibrate and avoid discharge blockage. Preferably, a protrusion 121 is provided above the four flexible skirts 12. The number of protrusions 121 on each flexible skirt 12 is one and they are strip-shaped so that the blade 211 can interact with the flexible skirts 12 to vibrate when it rotates.

[0055] The rotating component 21 is driven to rotate by a driving structure. Specifically, the driving structure includes a main driving rod 7, which simultaneously drives the rotating component 21 and the rotating shaft 52 of the stirring mechanism 5. Therefore, the rotation of the main driving rod 7 can simultaneously drive the rotating component 21 and the rotating shaft 52 of the stirring mechanism 5 to rotate, thus saving power.

[0056] Optionally, in Embodiments 1 and 2, a sealing plate 13 may be provided outside the powder outlet 11. When the equipment is not in use, the sealing plate 13 is sealed to the powder outlet 11. The presence of the sealing plate 13 can effectively prevent dust from leaking into the external environment and prevent external dust from entering the powder outlet 11 and contaminating the powder.

[0057] In summary, the powder dispensing structure of the powder hopper provided by this utility model has the following technical effects:

[0058] 1. By providing a flexible skirt 12 at the powder outlet 11 and interacting with it using the movement of the powder outlet component 2, the flexible skirt 12 vibrates, thereby disrupting the powder accumulation structure near the powder outlet 11. This dynamic intervention effectively prevents the formation of a stable static layer of powder at the powder outlet 11, significantly reducing the risk of blockage;

[0059] 2. The vibration of the flexible skirt 12 not only helps break up powder buildup but also loosens the powder and makes it easier to flow. This helps ensure that the powder can flow smoothly from the powder outlet 11, improving powder flowability;

[0060] 3. Compared with traditional mechanical anti-clogging solutions, airflow anti-clogging technologies, and electrostatic elimination methods, this invention achieves low-cost and low-energy-consumption anti-clogging effects through a combination of simple mechanical structures and flexible materials. This helps reduce production costs and improve economic efficiency.

[0061] 4. The powder hopper's discharge structure has a relatively simple design, yet it is highly functional. It can adapt to the processing needs of powders of different types, particle sizes, and characteristics. Whether the powder is highly viscous or has good flowability, this structure can achieve effective powder discharge and anti-clogging effects.

[0062] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A powder dispensing structure for a powder hopper, characterized in that, include: The powder container body (1) has a powder outlet (11) and the powder outlet (11) is provided with a flexible skirt (12); The powder outlet (2) is movably disposed inside the powder hopper body (1) and is used to push the powder out of the powder outlet (11). When the powder outlet (2) moves, it can interact with the flexible skirt (12) to make the flexible skirt (12) vibrate.

2. The powder discharging structure of a powder hopper according to claim 1, characterized in that, The flexible skirt (12) is provided with at least one protrusion (121) so that the powder outlet (2) can drive the flexible skirt (12) to make a shaking motion.

3. The powder discharging structure of a powder hopper according to claim 2, characterized in that, The powder outlet (11) is provided with at least one of the flexible skirts (12) along the pushing direction of the powder outlet (2).

4. The powder discharging structure of a powder hopper according to claim 3, characterized in that, When the pushing direction of the powder outlet (2) is different from the circumferential direction of the powder hopper body (1), at least one flexible skirt (12) is provided along the circumferential direction of the powder hopper body (1), and the flexible skirt (12) is spaced apart from each other and is provided independently.

5. The powder discharging structure of a powder hopper according to claim 1, characterized in that, A sealing plate (13) is provided outside the powder outlet (11), and the sealing plate (13) is sealed to the powder outlet (11).

6. The powder discharging structure of a powder hopper according to claim 4, characterized in that, The powder dispensing component (2) includes: Rotating component (21); The blade (211) is arranged circumferentially along the rotating member (21). The blade (211) is driven by the rotating member (21) to push the material and interacts with the protrusion (121) to cause the flexible skirt (12) to vibrate.

7. The powder discharging structure of a powder hopper according to claim 6, characterized in that, The powder outlet (2) also includes a sweeping member (22), which is connected to the end of the rotating member (21). The sweeping member (22) and the blade (211) rotate synchronously with the rotating member (21) to drive different flexible skirts (12) to shake.

8. The powder discharging structure of a powder hopper according to claim 7, characterized in that, There are two or more sweeping members (22), and the two or more sweeping members (22) are arranged at equal intervals along the circumference of the rotating member (21).

9. The powder discharging structure of a powder hopper according to claim 1, characterized in that, The powder hopper body (1) includes a powder hopper shell (3), a powder hopper cover (4), and a stirring mechanism (5). The powder hopper shell (3) includes a driving layer (31) located below and a storage layer (32) located above. A partition plate (6) is provided between the driving layer (31) and the storage layer (32). The partition plate (6) is provided with a discharge hole (61) and a drive shaft hole (62). The stirring mechanism (5) is assembled on the storage layer (32) and is drivenly connected to the powder outlet (2).

10. A powder hopper discharging structure according to claim 9, characterized in that, The edge of the partition plate (6) is provided with an upwardly inclined annular region (63), and the stirring mechanism (5) is in contact with the annular region (63) to move the powder material in the annular region (63) into the feeding hole (61) by the stirring mechanism (5).

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