Powder bin structure and milk brewing machine

Abstract

The utility model discloses a powder bin structure and a milk brewing machine. The powder bin structure comprises a powder storage bin, a powder falling bin, a stirring assembly and a powder blocking assembly. A powder discharging channel is arranged at the bottom of the powder storage bin. The powder falling bin is located below the powder storage bin and detachably connected to the powder storage bin, a powder falling opening is formed in the bottom of the powder storage bin, and the powder discharging channel communicates with the powder falling opening. The stirring assembly is arranged in the powder storage bin, a stirring shaft of the stirring assembly extends in the vertical direction, and an arch breaking structure is arranged at the lower end of the stirring shaft and partially inserted into the powder discharging channel. The powder blocking assembly is used for blocking or opening the powder falling opening. In the rotating process of the stirring shaft, the arch breaking structure can break the arch of the milk powder so as to ensure that the milk powder in the powder storage bin can smoothly pass through the powder discharging channel; the powder storage bin and the powder falling bin are detachably connected, so that mutual separation is facilitated for respective cleaning; the stirring shaft and the powder storage bin are coaxially arranged, the milk powder gets close to the middle and falls, and the powder falling efficiency is improved.

Description

Technical Field

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

[0002] Currently, the milk powder compartment in milk maker is prone to blockage at the outlet during the feeding process, preventing the milk powder from being fed smoothly through the outlet; moreover, the complex internal structure of the milk powder compartment makes it difficult to clean. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a powder hopper structure and a milk maker.

[0004] In a first aspect, this utility model embodiment provides a powder hopper structure, the powder hopper structure comprising:

[0005] A powder storage bin, the bottom of which is provided with a powder discharge channel;

[0006] A powder discharge chamber is located below the powder storage chamber and is detachably connected to the powder storage chamber. The bottom of the powder storage chamber is provided with a powder discharge port, and the powder discharge channel is connected to the powder discharge port.

[0007] A stirring assembly is provided inside the powder storage bin. The stirring shaft of the stirring assembly extends in the vertical direction. The stirring assembly can be driven to rotate around the stirring shaft. The lower end of the stirring shaft is provided with an arch-breaking structure, and the arch-breaking structure is partially inserted into the powder feeding channel.

[0008] A powder-blocking component is used to block or open the powder discharge port.

[0009] The powder hopper structure according to the embodiment of this utility model has at least the following technical effects: during the rotation of the stirring shaft, the arch-breaking structure can break the arches of the milk powder to ensure that the milk powder in the powder storage hopper can pass smoothly through the powder discharge channel; the powder storage hopper and the powder discharge hopper are detachably connected, making it easy to separate them for separate cleaning.

[0010] According to some embodiments of the present invention, the inner wall of the powder storage bin includes an annular wall and a conical wall, the lower end of the annular wall is connected to the upper end of the conical wall, and the conical wall gradually approaches the axis of the powder storage bin from top to bottom.

[0011] According to some embodiments of the present invention, the stirring assembly includes the stirring shaft and a plurality of stirring blades. The upper end of the stirring shaft is provided with a coupling member for connection with the driving component. The arch-breaking structure spirals around the stirring shaft. One end of each stirring blade is fixedly connected to the stirring shaft. The plurality of stirring blades are circumferentially distributed around the stirring shaft.

[0012] According to some embodiments of the present invention, the stirring assembly includes a stirring shaft, a first stirring blade, and a second stirring blade. The upper end of the stirring shaft is provided with a coupling member for connection with a driving component. The arch-breaking structure spirally surrounds the stirring shaft. Both the first stirring blade and the second stirring blade are U-shaped. The two ends of the first stirring blade are respectively fixedly connected to the stirring shaft, and the two ends of the second stirring blade are respectively fixedly connected to the stirring shaft. The distance between the first stirring blade and the inner peripheral wall of the powder storage bin is smaller than the distance between the second stirring blade and the inner peripheral wall of the powder storage bin. Both the first stirring blade and the second stirring blade are provided with a second powder-sweeping part.

[0013] According to some embodiments of the present invention, a first support is provided inside the powder storage bin, the first support extends horizontally, the inner wall of the powder storage bin is provided with two slots, the two ends of the first support are respectively fastened to the two slots, the stirring shaft passes through and is rotatably connected to the first support, a second support is provided inside the powder storage bin, the second support extends vertically, the upper end of the second support is fixedly connected to the first support, and the lower end of the second support is provided with a first powder sweeping part.

[0014] According to some embodiments of this utility model, the lower end of the powder storage bin is provided with a first powder outlet cylinder, the inner cavity of the first powder outlet cylinder forms the powder discharge channel, the outer peripheral wall of the first powder outlet cylinder is provided with a protrusion, the powder discharge bin is provided with a second powder outlet cylinder, the inner peripheral wall of the second powder outlet cylinder is provided with a snap-fit ​​part, the first powder outlet cylinder can be inserted into the second powder outlet cylinder so that the protrusion and the snap-fit ​​part are fastened together, the inner peripheral wall of the second powder outlet cylinder is provided with a first groove and a second groove, the first groove extends in the vertical direction, the second groove extends in the circumferential direction of the second powder outlet cylinder, the lower end of the first groove is connected to one end of the second groove, and the snap-fit ​​part is provided in the second groove.

[0015] According to some embodiments of this utility model, the powder-blocking assembly includes a powder-blocking plate and a resetting member. The powder-blocking plate is rotatably connected to the powder-feeding chamber. The resetting member is used to apply a torque to the powder-blocking plate to rotate toward the powder-feeding port. The powder-feeding chamber is provided with an arc-shaped limiting hole, and the powder-blocking plate is provided with a limiting post. The limiting post passes through the arc-shaped limiting hole. The lower end of the powder-feeding chamber is detachably connected to a powder-receiving cover. The powder-feeding port communicates with the inner cavity of the powder-receiving cover, and the powder-receiving cover is provided with a powder outlet.

[0016] According to some embodiments of the present invention, the lower end of the powder storage bin is provided with a stainless steel powder feeding sleeve, the inner cavity of the stainless steel powder feeding sleeve forms the powder feeding channel, the inner diameter of the stainless steel powder feeding sleeve gradually decreases from top to bottom, and the powder dropping bin is provided with an electrostatic elimination module, which is used to eliminate the static electricity of the stainless steel powder feeding sleeve.

[0017] According to some embodiments of this utility model, the powder discharge chamber is equipped with an electrostatic elimination module, which is used to eliminate static electricity from the stainless steel powder discharge sleeve; or...

[0018] The outer wall of the powder storage bin is equipped with a conductive plate, one end of which is connected to the stainless steel powder lower sleeve, and the other end of which is connected to the ground wire; or...

[0019] The upper end of the powder storage bin is slidably connected to a metal spring needle, the lower end of the metal spring needle abuts against the stirring shaft, the outer side of the arch-breaking structure abuts against the inner circumferential wall of the stainless steel lower powder sleeve, and the upper end of the metal spring needle is connected to the ground wire.

[0020] Secondly, this utility model embodiment also provides a milk maker, including a powder hopper structure according to the first aspect embodiment of this utility model described above.

[0021] The milk maker according to the embodiment of this utility model has at least the following technical effects: the milk maker adopts the powder hopper structure, and the arch-breaking structure can break the arches of the milk powder during the rotation of the stirring shaft, so as to ensure that the milk powder in the powder storage hopper can pass smoothly through the powder discharge channel; the powder storage hopper and the powder discharge hopper are detachably connected, so as to facilitate separation for separate cleaning.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of the powder hopper structure according to some embodiments of the present invention;

[0025] Figure 2 This is a cross-sectional view of the powder hopper structure according to some embodiments of this utility model;

[0026] Figure 3 These are exploded views of the powder hopper structure of some embodiments of this utility model;

[0027] Figure 4 This is a schematic diagram of the powder discharge chamber according to some embodiments of this utility model;

[0028] Figure 5 This is a schematic diagram of the powder dispensing chamber from another angle, representing some embodiments of this utility model.

[0029] Figure 6 This is a schematic diagram of another powder hopper structure according to some embodiments of the present invention;

[0030] Figure 7 This is a cross-sectional view of another powder hopper structure according to some embodiments of this utility model;

[0031] Figure 8 This is an exploded view of another powder hopper structure according to some embodiments of this utility model;

[0032] Figure 9 This is a cross-sectional view of another powder hopper structure according to some embodiments of this utility model;

[0033] Figure 10 This is a cross-sectional view of another powder hopper structure according to some embodiments of this utility model.

[0034] Icon labels:

[0035] Powder storage bin 100, powder discharge channel 110, annular wall 121, conical wall 122, slot 130, first powder discharge cylinder 140, protrusion 150; metal spring needle 160; conductive sheet 170;

[0036] Powder discharge hopper 200, powder discharge port 210, second powder discharge cylinder 220, first groove 231, second groove 232, buckle part 240, arc-shaped limiting hole 250, stainless steel powder lower sleeve 260, static elimination module 270, powder receiving cover 280, powder outlet 281;

[0037] The stirring assembly 300, stirring shaft 310, stirring blade 320, arch-breaking structure 321, coupling component 322, first support 330, second support 340, first powder-sweeping part 341, first stirring blade 351, second stirring blade 352, and second powder-sweeping part 353 are included.

[0038] Powder blocking assembly 400, powder blocking plate 410, reset component 420, limit post 430, connecting post 431, cylinder cover 440, handle 450. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the 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.

[0041] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0042] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0043] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0044] According to some embodiments of this utility model, refer to Figures 1 to 3 The powder silo structure includes a powder storage silo 100, a powder discharge silo 200, a stirring assembly 300, and a powder blocking assembly 400. The powder storage silo 100 is axially oriented vertically, and a powder discharge channel 110 is located at its bottom, coaxially with the powder storage silo 100. The powder discharge silo 200 is located below the powder storage silo 100 and is detachably connected to it. A powder discharge port 210 is located at the bottom of the powder storage silo 100, and the powder discharge channel 110 communicates with the powder discharge port 210. The stirring assembly 300 is located inside the powder storage silo 100, and its stirring shaft 310 extends vertically. The stirring assembly 300 can be driven to rotate around the stirring shaft 310. An arch-breaking structure 321 is located at the lower end of the stirring shaft 310, and part of the arch-breaking structure 321 is inserted into the powder discharge channel 110. The powder blocking assembly 400 is used to block or open the powder discharge port 210.

[0045] When powder needs to be dispensed, the powder-blocking component 400 opens the powder-dispensing port 210, and the milk powder in the powder storage bin 100 falls downwards through the powder dispensing channel 110 and the powder-dispensing port 210. The milk powder may arch at the falling channel and its entrance. During the rotation of the stirring shaft 310, the arch-breaking structure 321 breaks up the arches in the milk powder, ensuring that the milk powder in the powder storage bin 100 can smoothly pass through the powder dispensing channel 110. Simultaneously, because the stirring shaft 310 and the powder storage bin 100 are coaxially arranged, the milk powder in the powder storage bin 100 concentrates from the periphery to the center, resulting in a faster dispensing efficiency compared to the traditional method where milk powder needs to move to the surrounding powder compartments. Furthermore, the powder storage bin 100 and the powder dispensing bin 200 are detachably connected, facilitating separation for separate cleaning, and making it easier to clean the powder dispensing port 210 and the falling channel.

[0046] According to some embodiments of this utility model, refer to Figure 2The inner wall of the powder storage chamber 100 includes an annular wall 121 and a conical wall 122. The lower end of the annular wall 121 is connected to the upper end of the conical wall 122. The conical wall 122 gradually approaches the axis of the powder storage chamber 100 from top to bottom. The conical wall 122 can guide the milk powder to move from top to bottom towards the axis of the powder storage chamber 100, which facilitates the milk powder to be concentrated in the downward channel.

[0047] According to some embodiments of this utility model, refer to Figure 2 and Figure 3 The mixing assembly 300 includes a mixing shaft 310 and multiple mixing blades 320. The upper end of the mixing shaft 310 is provided with a coupling member 322 for connection to a driving component, allowing the driving end of the driving component to be relatively fixed to the mixing shaft 310, thus enabling the driving component to rotate the mixing shaft 310. An arch-breaking structure 321 spirally surrounds the mixing shaft 310. The arch-breaking structure 321 is a bolt-up plate shape. During the rotation of the mixing shaft 310, milk powder can pass through the arch-breaking structure 321 and then downwards through the falling channel. One end of each mixing blade 320 is fixedly connected to the mixing shaft 310, and multiple mixing blades 320 are circumferentially distributed around the mixing shaft 310.

[0048] Furthermore, refer to Figure 2 The stirring blades 320 are pressed against the conical wall 122 so that the stirring blades 320 can scrape the conical wall 122 under the rotation of the stirring shaft 310, thus preventing milk powder from sticking to the conical wall 122.

[0049] According to some embodiments of this utility model, refer to Figures 6 to 8 The stirring assembly 300 includes a stirring shaft 310, a first stirring blade 351, and a second stirring blade 352. The upper end of the stirring shaft 310 is provided with a coupling member 322 for connection to a driving component. An arch-breaking structure 321 spirally surrounds the stirring shaft 310. Both the first stirring blade 351 and the second stirring blade 352 are U-shaped. Both ends of the first stirring blade 351 and the second stirring blade 352 are fixedly connected to the stirring shaft 310. The first stirring blade 351 and the second stirring blade 352 are in the same plane. The lower ends of the first stirring blade 351 and the second stirring blade 352 are at the same height, while the upper end of the first stirring blade 351 is lower than the upper end of the second stirring blade 352. The distance between the first stirring blade 351 and the inner peripheral wall of the powder storage bin 100 is smaller than the distance between the second stirring blade 352 and the inner peripheral wall of the powder storage bin 100. Both the first stirring blade 351 and the second stirring blade 352 are provided with a second powder-sweeping part 353. The first stirring blade 351 and the second stirring blade 352 work together to fully stir the material and prevent the material from accumulating and getting stuck in the powder storage bin 100. The second powder sweeping part 353 can further stir the material and prevent the material from accumulating and getting stuck in the powder storage bin 100.

[0050] According to some embodiments of this utility model, refer to Figure 2 and Figure 3 The powder storage bin 100 is equipped with a first support 330 extending horizontally. The inner wall of the powder storage bin 100 has two slots 130, and both ends of the first support 330 are respectively engaged with the two slots 130. The stirring shaft 310 passes through and is rotatably connected to the first support 330. It is understood that the first support 330 supports the stirring shaft 310, preventing it from shifting and ensuring that the axis of the stirring shaft 310 is vertical. Simultaneously, the first support 330 is detachably connected to the powder storage bin 100, facilitating the removal and separation of the stirring shaft 310 and the stirring blades 320 from the powder storage bin 100 for cleaning.

[0051] Furthermore, refer to Figure 2 and Figure 3 The powder storage hopper 100 is equipped with a second support 340, which extends vertically. The upper end of the second support 340 is fixedly connected to the first support 330, and the lower end of the second support 340 is equipped with a first powder sweeping part 341. The first powder sweeping part 341 guides the milk powder to concentrate towards the center and also breaks up air pockets.

[0052] According to some embodiments of this utility model, refer to Figures 2 to 4 The powder storage bin 100 has a first powder outlet cylinder 140 at its lower end. The inner cavity of the first powder outlet cylinder 140 forms a powder discharge channel 110. Both the upper and lower ends of the first powder outlet cylinder 140 are open. The upper end of the first powder outlet cylinder 140 is connected to the inner cavity of the powder storage bin 100. The outer peripheral wall of the first powder outlet cylinder 140 has a protrusion 150. The powder discharge bin 200 has a second powder outlet cylinder 220. Both the upper and lower ends of the second powder outlet cylinder 220 are open. The inner peripheral wall of the second powder outlet cylinder 220 has a snap-fit ​​part 240. The lower end of the second powder outlet cylinder 220 forms a powder discharge port 210. The first powder outlet cylinder 140 can be inserted into the second powder outlet cylinder 220 so that the protrusion 150 and the snap-fit ​​part 240 are fastened together, thereby fixing the powder discharge bin 200 and the powder storage bin 100 relatively.

[0053] It should be noted that the powder discharge hopper 200 and the powder storage hopper 100 can also be relatively fixed by threaded connection. For example, the second powder discharge cylinder 220 is provided with internal thread, the first powder discharge cylinder 140 is provided with external thread, and the first powder discharge cylinder 140 and the second powder discharge cylinder 220 are threadedly connected.

[0054] Furthermore, refer to Figure 3 and Figure 4The inner circumferential wall of the second powder outlet cylinder 220 is provided with a first groove 231 and a second groove 232. The first groove 231 extends vertically, and the second groove 232 extends circumferentially along the second powder outlet cylinder 220. The lower end of the first groove 231 is connected to one end of the second groove 232, and the latching part 240 is provided in the second groove 232. Understandably, when the first powder outlet cylinder 140 is inserted downward into the second powder outlet cylinder 220, the protrusion 150 passes through the first groove 231, and the first powder outlet cylinder 140 rotates relative to the second powder outlet cylinder 220, so that the protrusion 150 moves relative to the second groove 232, so that the protrusion 150 moves to the other end of the locking part 240 and the second groove 232. The locking part 240 is elastic. When the protrusion 150 passes over the locking part 240 and is located between the locking part 240 and the other end of the second groove 232, the locking part 240 and the second groove 232 cooperate to restrict the rotation of the protrusion 150 relative to the second powder outlet cylinder 220, so that the powder storage bin 100 and the powder discharge bin 200 are relatively fixed.

[0055] According to some embodiments of this utility model, refer to Figure 2 and Figure 3 The powder blocking assembly 400 includes a powder blocking plate 410 and a reset member 420. The powder blocking plate 410 is rotatably connected to the powder discharge chamber 200, and the reset member 420 is used to apply a torque to the powder blocking plate 410 to rotate toward the powder discharge port 210.

[0056] Understandably, the upper end of the powder baffle 410 is provided with a connecting post 431, which is inserted into and rotatably connected to the powder discharge chamber 200. The reset member 420 is a torsion spring, which is sleeved on the connecting post 431, and its two ends are respectively connected to the powder baffle 410 and the powder discharge chamber 200. In the initial state, the powder baffle 410 blocks the powder discharge port 210. When an external force is applied to the powder baffle 410 to rotate it and open the powder discharge port 210, the torque of the reset member 420 needs to be overcome. When the external force is removed, the powder baffle 410 re-blocks the powder discharge port 210 under the drive of the reset member 420.

[0057] It should be noted that the rotation of the powder baffle 410 can be controlled manually or by a drive motor.

[0058] According to some embodiments of this utility model, refer to Figure 4 and Figure 5 The powder discharge chamber 200 is provided with an arc-shaped limiting hole 250, and the powder baffle plate 410 is provided with a limiting post 430, which passes through the arc-shaped limiting hole 250. The arc-shaped limiting hole 250 can limit the rotation range of the powder baffle plate 410 and prevent the powder baffle plate 410 from rotating too much and damaging the reset component 420.

[0059] Reference Figure 3The powder storage hopper 100 has a cylindrical cover 440 at its upper end, which covers the powder storage hopper 100 to seal the upper opening of the powder storage hopper 100. A sealing ring is provided between the cylindrical cover 440 and the powder storage hopper 100 to prevent milk powder leakage and external impurities from entering the powder storage hopper 100. A handle 450 is provided on the outer peripheral wall of the powder storage hopper 100 to facilitate the removal of the powder storage hopper 100.

[0060] The milk maker is equipped with a drive component, which is located at the upper end of the powder storage bin 100 and the drive end of the drive component faces downward. When the powder storage bin 100 is installed on the milk maker, the drive component is coupled to the stirring shaft 310.

[0061] According to some embodiments of this utility model, refer to Figures 6 to 8 The lower end of the powder storage hopper 100 is equipped with a stainless steel powder discharge sleeve 260. The inner cavity of the stainless steel powder discharge sleeve 260 forms a powder discharge channel 110. The inner diameter of the stainless steel powder discharge sleeve 260 gradually decreases from top to bottom, thereby guiding the milk powder in the powder storage hopper 100 to flow towards the middle of the stainless steel powder discharge sleeve 260, preventing the milk powder from getting stuck inside the stainless steel powder discharge sleeve 260. Furthermore, the powder dropping hopper 200 is equipped with an electrostatic elimination module 270, which is used to eliminate static electricity in the stainless steel powder discharge sleeve 260, preventing the milk powder from adhering to the inside of the stainless steel powder discharge sleeve 260 under the action of static electricity and failing to fall downwards.

[0062] In some embodiments, refer to Figure 9 The outer wall of the powder storage hopper 100 is provided with a conductive sheet 170. One end of the conductive sheet 170 is connected to the stainless steel powder lower sleeve 260, and the other end of the conductive sheet 170 is connected to the ground wire, thereby eliminating static electricity in the stainless steel powder lower sleeve 260 through the conductive sheet 170. Preferably, the powder storage hopper 100 is provided with a ground wire contact, which is connected to the conductive sheet 170, and the ground wire is connected to the ground wire contact and parallel to the power line; or, the powder storage hopper 100 is provided with a conductive element, which is connected to both the stainless steel powder lower sleeve 260 and the ground wire conductive element, and the ground wire conductive element is then parallel to the ground wire, thereby eliminating static electricity in the stainless steel powder lower sleeve 260 and preventing powder accumulation.

[0063] In some embodiments, refer to Figure 10 A metal spring pin 160 is slidably connected to the upper end of the powder storage bin 100. The lower end of the metal spring pin 160 abuts against the stirring shaft 310. The spring of the metal spring pin 160 is in a compressed state, and the upper end of the spring abuts against the powder storage bin 100. The outer side of the anti-arch structure 321 abuts against the inner circumferential wall of the stainless steel powder lower sleeve 260. The upper end of the metal spring pin 160 is connected to the ground wire. The metal spring pin 160 is connected to the metal housing of the motor, and the metal housing of the motor is connected to the ground wire. Both the stirring shaft 310 and the anti-arch structure 321 are made of conductive materials, thereby eliminating static electricity in the stainless steel powder lower sleeve 260 and preventing powder accumulation.

[0064] According to some embodiments of this utility model, refer to Figures 6 to 8 The lower end of the powder receiving chamber 200 is detachably connected to a powder receiving cover 280. The powder receiving port 210 communicates with the inner cavity of the powder receiving cover 280, and the powder receiving cover 280 is provided with a powder outlet 281. The milk powder in the powder storage chamber 100 enters the powder receiving cover 280 through the powder discharging channel 110 and the powder discharging port 210. The inner diameter of the powder receiving cover 280 gradually decreases from top to bottom, thereby guiding the milk powder to flow towards the middle and fall downward through the powder outlet 281.

[0065] In this specification, the reference to the term "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0066] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A powder hopper structure, characterized in that, include: A powder storage bin (100) is provided with a powder discharge channel (110) at the bottom; A powder discharge chamber (200) is located below the powder storage chamber (100) and is detachably connected to the powder storage chamber (100). The powder storage chamber (100) has a powder discharge port (210) at its bottom, and the powder discharge channel (110) is connected to the powder discharge port (210). A stirring assembly (300) is disposed in the powder storage bin (100). The stirring shaft (310) of the stirring assembly (300) extends in the vertical direction. The stirring assembly (300) can be driven to rotate around the stirring shaft (310). The lower end of the stirring shaft (310) is provided with an arch-breaking structure (321). The arch-breaking structure (321) is partially inserted into the powder discharge channel (110). A powder blocking assembly (400) is used to block or open the powder discharge port (210).

2. The powder hopper structure according to claim 1, characterized in that, The inner wall of the powder storage bin (100) includes an annular wall (121) and a conical wall (122). The lower end of the annular wall (121) is connected to the upper end of the conical wall (122), and the conical wall (122) gradually approaches the axis of the powder storage bin (100) from top to bottom.

3. The powder hopper structure according to claim 1, characterized in that, The stirring assembly (300) includes the stirring shaft (310) and a plurality of stirring blades (320). The upper end of the stirring shaft (310) is provided with a coupling member (322) for connection with the driving component. The arch-breaking structure (321) spirally surrounds the stirring shaft (310). One end of the stirring blades (320) is fixedly connected to the stirring shaft (310). The plurality of stirring blades (320) are circumferentially distributed around the stirring shaft (310).

4. The powder hopper structure according to claim 1, characterized in that, The stirring assembly (300) includes the stirring shaft (310), a first stirring blade (351), and a second stirring blade (352). The upper end of the stirring shaft (310) is provided with a coupling member (322) for connection with the driving component. The arch-breaking structure (321) spirally surrounds the stirring shaft (310). Both the first stirring blade (351) and the second stirring blade (352) are U-shaped. The two ends of the first stirring blade (351) are fixedly connected to the stirring shaft (310), and the two ends of the second stirring blade (352) are fixedly connected to the stirring shaft (310). The distance between the first stirring blade (351) and the inner peripheral wall of the powder storage bin (100) is smaller than the distance between the second stirring blade (352) and the inner peripheral wall of the powder storage bin (100). Both the first stirring blade (351) and the second stirring blade (352) are provided with a second powder sweeping part (353).

5. The powder hopper structure according to claim 1, characterized in that, The powder storage bin (100) is provided with a first support (330) extending horizontally. The inner wall of the powder storage bin (100) is provided with two slots (130). The two ends of the first support (330) are respectively fastened to the two slots (130). The stirring shaft (310) passes through and is rotatably connected to the first support (330). The powder storage bin (100) is provided with a second support (340) extending vertically. The upper end of the second support (340) is fixedly connected to the first support (330). The lower end of the second support (340) is provided with a first powder sweeping part (341).

6. The powder hopper structure according to claim 1, characterized in that, The lower end of the powder storage bin (100) is provided with a first powder outlet cylinder (140), the inner cavity of the first powder outlet cylinder (140) forms the powder discharge channel (110), and the outer peripheral wall of the first powder outlet cylinder (140) is provided with a protrusion (150). The powder discharge bin (200) is provided with a second powder outlet cylinder (220), and the inner peripheral wall of the second powder outlet cylinder (220) is provided with a snap-fit ​​part (240). The first powder outlet cylinder (140) can be inserted into the second powder outlet cylinder (220) to allow... The protrusion (150) is fastened to the snap-fit ​​part (240). The inner peripheral wall of the second powder discharge cylinder (220) is provided with a first groove (231) and a second groove (232). The first groove (231) extends vertically, and the second groove (232) extends circumferentially along the second powder discharge cylinder (220). The lower end of the first groove (231) is connected to one end of the second groove (232). The snap-fit ​​part (240) is located in the second groove (232).

7. The powder hopper structure according to claim 1, characterized in that, The powder blocking assembly (400) includes a powder blocking plate (410) and a reset member (420). The powder blocking plate (410) is rotatably connected to the powder dropping chamber (200). The reset member (420) is used to apply a torque to the powder blocking plate (410) to rotate toward the powder dropping port (210). The powder dropping chamber (200) is provided with an arc-shaped limiting hole (250). The powder blocking plate (410) is provided with a limiting post (430). The limiting post (430) passes through the arc-shaped limiting hole (250). The lower end of the powder dropping chamber (200) is detachably connected to a powder receiving cover (280). The powder dropping port (210) communicates with the inner cavity of the powder receiving cover (280). The powder receiving cover (280) is provided with a powder outlet (281).

8. The powder hopper structure according to claim 1, characterized in that, The lower end of the powder storage bin (100) is provided with a stainless steel powder feeding sleeve (260), the inner cavity of the stainless steel powder feeding sleeve (260) forms the powder feeding channel (110), and the inner diameter of the stainless steel powder feeding sleeve (260) gradually decreases from top to bottom.

9. The powder hopper structure according to claim 8, characterized in that, The powder discharge chamber (200) is equipped with an electrostatic elimination module (270), which is used to eliminate static electricity from the stainless steel powder discharge sleeve (260); or, The outer wall of the powder storage bin (100) is provided with a conductive sheet (170), one end of which is connected to the stainless steel powder lower sleeve (260), and the other end of which is connected to the ground wire; or, The upper end of the powder storage bin (100) is slidably connected to a metal spring needle (160), the lower end of the metal spring needle (160) abuts against the stirring shaft (310), the outer side of the arch-breaking structure (321) abuts against the inner circumferential wall of the stainless steel powder lower sleeve (260), and the upper end of the metal spring needle (160) is connected to the ground wire.

10. A formula maker, characterized in that, It includes the powder hopper structure as described in any one of claims 1 to 9.

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