A milk powder machine

Abstract

This invention discloses a milk powder machine, comprising: a machine body, a quantitative powder dispensing mechanism, a mixing box, and a water supply mechanism; the quantitative powder dispensing mechanism includes a powder storage box, a powder discharging channel, a blowing assembly, a first rotating assembly, and a second rotating assembly; a first powder outlet is provided at the bottom of the powder storage box; the powder discharging channel is located beside it; the blowing assembly is used to blow airflow into the powder discharging channel; the powder transfer plate of the first rotating assembly has several powder receiving slots; the powder scraping plate of the second rotating assembly evenly scrapes the milk powder in the powder storage box into the powder receiving slots facing the first powder outlet; each powder receiving slot can be rotated to align with the powder discharging channel, so that the milk powder falls into the mixing box; the mixing box is connected to the machine body; the water supply mechanism supplies warm water to the mixing box to mix with the milk powder. The milk powder machine provided by this invention, through the staggered layout of the first powder outlet and the powder discharging channel, combined with the blowing assembly to form a positive airflow, effectively prevents the milk powder from getting damp, clumping, and growing bacteria, ensuring the long-term dry storage and safe preparation of the milk powder.

Description

Technical Field

[0001] This invention relates to the field of milk powder machine technology, and in particular to a milk powder machine. Background Technology

[0002] A milk powder maker is a device used to automatically prepare milk powder. Its basic working principle is as follows: milk powder is stored in a powder storage box, and a preset amount of milk powder is delivered into the mixing chamber by a quantitative powder dispensing mechanism. At the same time, a water supply mechanism provides warm water at a suitable temperature, so that the milk powder and water are mixed in the mixing chamber to form milk liquid, which is then output through the liquid outlet, achieving quick and convenient preparation.

[0003] Currently, most infant formula dispensers have a metering outlet directly at the bottom of the powder storage box. This outlet is directly connected to the mixing chamber, forming a channel for the powder to fall. Since infant formula requires warm water at 37-45℃ to ensure solubility and taste, this warm water easily creates warm mist in the mixing chamber. However, these dispensers typically lack an effective backflow prevention design between the metering outlet and the mixing chamber, allowing this warm mist to easily flow upwards along this channel and enter the powder storage box.

[0004] When milk powder in the storage container comes into contact with the backflow of mist, it absorbs moisture and clumps. This not only easily clogs the dispensing spout, causing inaccurate or interrupted dispensing and affecting the normal delivery of milk powder, but also impairs the milk powder's flowability, leading to incomplete dissolution during preparation and potentially resulting in undissolved particles in the milk. More seriously, damp, clumped milk powder is prone to bacterial growth, posing food safety risks and directly impacting the health of infants and young children.

[0005] It is evident that existing technologies still need improvement and enhancement. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a milk powder machine to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A milk powder machine includes: a machine body, a quantitative powder dispensing mechanism, a milk mixing box, and a water supply mechanism; The quantitative powder dispensing mechanism includes a powder storage box, a powder dispensing channel, a blowing assembly, a first rotating assembly, and a second rotating assembly. The powder storage box is located inside the machine body and is used to store milk powder. The bottom of the powder storage box has a first powder outlet. The powder dispensing channel extends vertically and is located next to the first powder outlet. The air outlet of the blowing assembly is located at the top of the powder dispensing channel and is used to blow air into the powder dispensing channel. The output end of the first rotating assembly has a rotatable powder transfer plate, which has several powder receiving slots arranged in a circumferential array. The powder receiving slots are used to fill milk powder. The output end of the second rotating assembly has a rotatable powder scraping plate located inside the powder storage box. The powder scraping plate is used to evenly scrape the milk powder in the powder storage box into the powder receiving slots facing the first powder outlet. Each of the powder receiving slots can be rotated from the powder receiving position facing the first powder outlet to the position facing the powder dispensing channel under the drive of the first rotating assembly, thereby realizing quantitative transfer of milk powder. The mixing box is detachably connected to the machine body and is located directly below the powder dispensing channel; the bottom of the mixing box has a downward-extending liquid outlet; The water supply mechanism is located on the machine body, and its water outlet is provided with a water inlet channel. The water inlet channel is connected to the milk mixing box and is used to quantitatively deliver warm water to the milk mixing box. The warm water and the milk powder falling in through the powder dispensing channel are mixed evenly in the milk mixing box.

[0008] Furthermore, the projection area of ​​the first powder outlet can accommodate at least two powder receiving slots; the projection area of ​​the powder dispensing channel can accommodate one powder receiving slot.

[0009] Furthermore, it also includes a stirring mechanism; the mixing box is provided with a guide cavity and a stirring cavity communicating with the bottom of the guide cavity, and the inner wall of the stirring cavity is provided with several raised ribs; the output end of the stirring mechanism is provided with a rotatable stirring rod, which extends into the stirring cavity to stir the mixture of milk powder and water flowing in from the guide cavity.

[0010] Furthermore, the quantitative powder dispensing mechanism also includes a powder pressing component; the powder pressing component includes a mounting base and a pusher block, the mounting base is disposed on the powder dispensing channel, one end of the pusher block is connected to the mounting base, and the other end extends to the powder transfer plate for dispensing milk powder from the powder receiving tank.

[0011] Furthermore, the quantitative powder dispensing mechanism also includes a plasma generator, the electrode needle of which extends into the powder dispensing channel and is located between the air outlet of the blowing assembly and the powder transfer disc.

[0012] Furthermore, the bottom of the powder storage box is provided with a bottom cover, which together with the bottom of the powder storage box forms a powder transfer cavity. The powder transfer disc is rotatably embedded in the powder transfer cavity. The bottom of the first powder outlet and the powder discharge channel are both connected to the powder transfer cavity. A second powder outlet is provided on the bottom cover, which is coaxially arranged with the powder discharge channel. The second powder outlet extends into the guide cavity.

[0013] Furthermore, the quantitative powder dispensing mechanism also includes a positioning sensing component, which includes a Hall sensor and several magnets. The magnets are embedded in the powder transfer disk in a circumferential array, and each magnet corresponds to one of the powder receiving slots. The Hall sensor is located on the bottom cover and is used to detect the passing of the magnets and output a pulse signal.

[0014] Furthermore, the flow guiding cavity includes a vertical section and a conical flow guiding section connected in sequence, the conical flow guiding section being arranged to contract inward in the downward direction; the axis of the water inlet channel is located in the tangential direction of the vertical section, the second powder outlet is close to the water inlet channel, and the bottom of the second powder outlet is provided with an inclined surface adapted to the inner wall of the conical flow guiding section.

[0015] Furthermore, the body includes a main body, a front panel, and a U-shaped panel. The front panel and the U-shaped panel are located on the front side of the main body, and the U-shaped panel is located below the front panel. The U-shaped panel is recessed towards the inner side of the main body to form a receiving cavity. The mixing box also includes a mounting part, which is fastened to the U-shaped panel. The front side of the mounting part is provided with a stepped part, which abuts against the bottom of the front panel.

[0016] Furthermore, the water supply mechanism includes a water storage tank, a water pump, and an instant heating module. The water storage tank is detachably mounted on the machine body, and a sterilization lamp is installed on the top of the water storage tank. The water pump and the instant heating module are both located inside the machine body. Along the water flow direction, the water outlet of the water storage tank, the water pump, the instant heating module, and the water inlet channel are connected in sequence to achieve quantitative delivery of warm water.

[0017] Beneficial effects: This invention provides a milk powder machine, which has the following beneficial effects: (1) By independently controlling the powder scraping and filling and the powder transfer through dual rotating components, combined with a fixed-volume powder receiving tank, the milk powder is accurately and stably dispensed in a quantitative manner. At the same time, the milk powder machine adopts a non-coaxial layout with the first powder outlet and the powder discharging channel offset, which physically blocks the upward channel of warm and humid air in the mixing box. The blowing component forms a continuous positive airflow in the powder discharging channel, thereby effectively inhibiting the backflow of moisture to the powder storage box. This fundamentally avoids the stored milk powder from getting damp, clumping, and growing bacteria, ensuring the long-term dry storage and safe preparation of the milk powder. In addition, the mixing box adopts a detachable connection, which is convenient for users to remove for thorough cleaning and maintain hygiene. After each preparation program, the system can also use the airflow generated by the blowing component, supplemented by a small amount of warm water, to rinse and blow the inside of the mixing box. This not only removes residual milk stains but also accelerates internal drying, achieving a certain degree of self-cleaning and extending the cycle of manual disassembly and cleaning.

[0018] (2) The added plasma generator can effectively eliminate static electricity generated by friction during the falling of milk powder, avoid powder adsorption and clumping, and ensure accurate powder dispensing; after the milk is prepared, the blower component and the plasma generator work together to generate airflow that can simultaneously dry the water vapor remaining on the inner wall of the component and use ozone for sterilization and disinfection, thus completing the integrated cleaning and maintenance; in addition, it also supports automatic sterilization and disinfection of key components such as the powder dispensing channel and the mixing box during non-use periods to maintain the safety and cleanliness of the mixing box. Attached Figure Description

[0019] Figure 1 The structural diagram of the milk powder machine provided by the present invention; Figure 2 This is a partial exploded view of the milk powder machine provided by the present invention; Figure 3 This is a cross-sectional view of the quantitative powder dispensing mechanism in the milk powder machine provided by the present invention; Figure 4 An exploded view of the quantitative powder dispensing mechanism in the milk powder machine provided by the present invention; Figure 5 Cross-sectional view of the milk powder machine provided by the present invention Figure 1 ; Figure 6 This is a structural diagram of the milk mixing box in the milk powder machine provided by the present invention; Figure 7 A cross-sectional view of the milk mixing box in the milk powder machine provided by the present invention; Figure 8 An exploded view of the milk mixing box in the milk powder machine provided by the present invention; Figure 9 Cross-sectional view of the milk powder machine provided by the present invention Figure 2 ; Figure 10 Cross-sectional view of the milk powder machine provided by the present invention Figure 3 .

[0020] Reference numerals: 1. Body; 11. Water inlet channel; 12. Body body; 13. Front plate; 14. U-shaped plate; 141. Positioning strip; 142. Second inclined snap-fit ​​surface; 15. Top cover; 151. Sealing ring; 16. Water collection tank; 17. Cover plate; 171. Clearance hole; 18. Box cover; 2. Quantitative powder dispensing mechanism; 21. Powder storage box; 21. First powder outlet; 212. Powder storage cavity; 213. Locking position; 214. Second boss; 22. Powder discharge channel; 221. Reduced diameter section; 23. Blowing assembly; 24. First rotating assembly; 24. Powder transfer plate; 241. Powder receiving tank; 2411. First groove; 2412. First positioning post; 2413. First drive motor; 242. Second rotating assembly; 25. Powder scraper plate; 251. Second groove; 2511. Second positioning post; 2512. Second motor; 252. Powder pressing assembly; 26. Mounting base; 261. Pulse block. 262, Plasma generator 27, Electrode needle 271, Powder dispensing rod 28, Milk mixing box 3, Flow guiding cavity 31, Vertical section 311, Conical flow guiding section 312, Stirring cavity 32, Raised rib 321, Liquid outlet 33, Mounting part 34, Stepped part 341, Clearance position 342, Positioning groove 343, Locking block 344, Inclined guide surface 3441, First inclined locking surface 3442, Stepped surface 345, Clearance groove 346, Stirring mechanism 4, Stirring rod 41, Stirring motor 42, Water supply mechanism 5, Water storage tank 51, Water pump 52, Instant heating module 53, Sterilization lamp 54, Bottom cover 6, Second powder outlet 61, Inclined surface 611, Powder transfer cavity 62, First surrounding edge 621, Second surrounding edge 63, First boss 64, Positioning sensing component 7, Hall sensor 71, Magnet 72, Circuit board 73. Detailed Implementation

[0021] This invention provides a milk powder machine. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention.

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0023] Please see Figures 1 to 10As shown, the present invention provides a milk powder machine, including: a machine body 1, a quantitative powder dispensing mechanism 2, a milk mixing box 3, and a water supply mechanism 5; the quantitative powder dispensing mechanism 2 includes a powder storage box 21, a powder dispensing channel 22, a blower assembly 23, a first rotating assembly 24, and a second rotating assembly 25; the powder storage box 21 is disposed inside the machine body 1 and is used to store milk powder, and the bottom of the powder storage box 21 is provided with a first powder outlet 211; the powder dispensing channel 22 extends vertically and is located beside the first powder outlet 211; the air outlet of the blower assembly 23 is disposed at the top of the powder dispensing channel 22 and is used to blow air into the powder dispensing channel 22; the output end of the first rotating assembly 24 is provided with a rotatable powder transfer plate 241, and the powder transfer plate 241 has a plurality of powder receiving slots 2411 arranged in a circumferential array inside the powder receiving plate 241, the powder receiving slots 2411 being used to fill milk powder; the second rotating assembly 25; The output end of 25 is provided with a rotatable powder scraper 251 located inside the powder storage box. The powder scraper 251 is used to evenly scrape the milk powder in the powder storage box 21 into the powder receiving trough 2411 facing the first powder outlet 211. Each of the powder receiving troughs 2411 can be rotated from the powder receiving position facing the first powder outlet 211 to the position facing the powder discharging channel 22 under the drive of the first rotating component 24, so as to realize the quantitative transfer of milk powder. The mixing box 3 is detachably connected to the body 1 and is located directly below the powder discharging channel 22. The bottom of the mixing box 3 is provided with a downwardly extending liquid outlet 33. The water supply mechanism 5 is located on the body 1, and its water outlet end is provided with a water inlet channel 11. The water inlet channel 11 is connected to the mixing box 3 and is used to quantitatively deliver warm water to the mixing box 3. The warm water and the milk powder falling into the mixing box 3 through the powder discharging channel 22 are mixed evenly in the mixing box 3.

[0024] During operation, the second rotating component 25 drives the powder scraper 251 to rotate, evenly scraping the milk powder into the powder receiving trough 2411 located below the first powder outlet 211, achieving quantitative filling. Subsequently, the first rotating component 24 drives the powder transfer plate 241 to rotate one step, transferring the filled powder receiving trough 2411 to the powder discharge channel 22. At this time, the milk powder in the powder receiving trough 2411, aided by its own weight and the downward airflow from the blowing component 23, falls completely into the mixing box 3 below through the powder discharge channel 22. Simultaneously, the water supply mechanism 5 injects warm water into the mixing box 3 through the water inlet channel 11. After the milk powder and warm water mix in the mixing box 3, they flow out through the liquid outlet 33.

[0025] In the above-mentioned process, the filling and transfer are independently controlled by dual rotating components, and with the fixed volume of the powder container 2411, a stable and quantitative amount of powder is dispensed. The first powder outlet 211 and the powder dispensing channel 22 adopt a staggered, non-coaxial layout, which physically blocks the upward path of warm and humid air in the mixing box 3. At the same time, the blowing component 23 continuously blows air downward, forming a stable positive airflow pressure in the powder dispensing channel 22, which further effectively blocks the backflow of moisture into the powder storage box 21, thereby fundamentally avoiding the problems of milk powder becoming damp and clumping, and the growth of bacteria, ensuring the storage quality and preparation safety of the milk powder.

[0026] In this embodiment, the blowing assembly 23 is a miniature axial flow fan. The miniature axial flow fan is fixed at the top of the powder feeding channel 22, and its air outlet is set directly facing the powder feeding channel 22, so as to directly deliver a stable airflow into the powder feeding channel 22.

[0027] In another embodiment, the blowing assembly 23 may also be a micro centrifugal fan or other airflow generating device with the same function. Its air outlet can be directly directed toward the powder dispensing channel 22, or the airflow can be transported to the inside of the powder dispensing channel 22 through the air guide pipe. The core purpose is to maintain a stable positive pressure state inside the powder dispensing channel 22 so as to achieve the effect of blocking the backflow of mist in the mixed milk box.

[0028] In a preferred embodiment, see [reference] Figure 3 , 4 The projection area of ​​the first powder outlet 211 can accommodate at least two powder receiving slots 2411; the projection area of ​​the powder dispensing channel 22 can accommodate one powder receiving slot 2411. This configuration ensures that during the rotation of the powder transfer disc 241, at least two powder receiving slots 2411 are always located below the first powder outlet 211, simultaneously filling with powder. This extends the dwell time of a single powder receiving slot 2411 at the filling position, ensuring that the milk powder can fully and evenly fill the powder receiving slot 2411, avoiding incomplete filling due to insufficient filling time. Simultaneously, the powder dispensing channel 22 corresponds to only one powder receiving slot 2411, achieving precise powder dispensing control per slot. The milk powder machine's controller can accurately accumulate the total powder dispensing volume by controlling the number of powder receiving slots 2411 passing through the powder dispensing channel 22, avoiding quantitative loss of control caused by simultaneous dispensing from multiple slots, and ensuring that the powder dispensing rhythm precisely matches the mixing ratio requirements of the formula.

[0029] In a preferred embodiment, see [reference] Figure 7 The system also includes a stirring mechanism 4; the mixing box 3 has a guide cavity 31 and a stirring cavity 32 connected to the bottom of the guide cavity 31; the output end of the stirring mechanism 4 is equipped with a rotatable stirring rod 41, which extends into the stirring cavity 32 to stir the mixture of milk powder and water flowing in from the guide cavity 31. During operation, the milk powder falling from the powder discharge channel 22 and the warm water entering from the water inlet channel 11 first come into initial contact and mix in the guide cavity 31, and then the mixture flows into the stirring cavity 32 below under the action of gravity. At this time, the stirring mechanism 4 is activated, driving the stirring rod 41 to rotate, and actively and fully mechanically stirring the powder-water mixture flowing into the stirring cavity 32. By adding an independent stirring cavity 32 and configuring an active stirring component, the agglomeration of milk powder particles can be strongly broken, effectively improving the dissolution rate and mixing uniformity of milk powder, ensuring that the final prepared milk liquid is delicate and uniform, with no undissolved particle residue and low bubble generation, thus improving the drinking taste and convenience.

[0030] The inner wall of the mixing chamber 32 is provided with a number of raised ribs 321. Specifically, the raised ribs 321 are distributed circumferentially along the axis of the mixing chamber 32. When the stirring rod 41 rotates and drives the powder-water mixture to rotate, these raised ribs 321 can generate local turbulence and disturbance in the mixing chamber 32, preventing the mixture from simply sliding along the chamber wall, thereby enhancing the mixing effect and further improving the uniformity and efficiency of the mixing.

[0031] Preferably, the cross-section of the raised rib 321 is semi-circular. Its arc surface faces the inside of the mixing chamber 32, and the surface is smooth without any sharp edges. This design effectively turbulent the powder-water mixture during mixing to break laminar flow, while avoiding excessive obstruction or cutting of the mixture, preventing the milk from generating a large number of bubbles due to excessive turbulence. Furthermore, the smooth arc surface greatly reduces the adhesion and residue of milk powder particles on the surface of the raised rib 321 and at its connection with the inner wall of the mixing chamber 32, making cleaning after preparation more convenient and effectively improving the hygiene and maintenance convenience of the milk powder machine.

[0032] For easy cleaning, the mixing container 3 is detachably mounted on the main body 1. After preparation, users can remove it for thorough cleaning, making maintenance convenient. Furthermore, in practical applications, the milk powder machine has an automatic cleaning function. After the preparation process is complete, the water supply mechanism 5 introduces water at a preset temperature into the mixing container 3 through the water inlet channel 11. The water flows sequentially through the guide chamber 31 and the stirring chamber 32. Simultaneously, the stirring mechanism 4 is activated, driving the stirring rod 41 to rotate. The water flow and the rotation of the stirring rod 41 clean the inside of the mixing container 3. During this process, the blower assembly 23 continuously blows airflow into the powder discharge channel 22. This airflow enters the mixing container 3 through the powder discharge channel 22, not only helping to remove residual water stains but also accelerating the drying of the entire powder discharge channel 22 and the internal cavity of the mixing container 3. This achieves effective automatic cleaning of the milk powder contact path, extending the interval between manual disassembly and cleaning by the user.

[0033] In a preferred embodiment, see [reference] Figure 3 , 4 The quantitative powder dispensing mechanism 2 further includes a powder pressing component 26. The powder pressing component 26 includes a mounting base 261 and a pusher block 262. The mounting base 261 is located on the powder dispensing channel 22. One end of the pusher block 262 is connected to the mounting base 261, and the other end extends to the powder transfer plate 241, used to push out the milk powder in the powder receiving tank 2411. When the powder receiving tank 2411 containing milk powder rotates to the powder dispensing channel 22, the end of the pusher block 262 can extend into or pass over the powder receiving tank 2411, applying a slight pushing or vibration action to the milk powder inside. This helps to break up any electrostatic adsorption or slight clumping that may occur due to the fine texture of the milk powder, ensuring that all the milk powder in the powder receiving tank 2411 can be completely dislodged and discharged under the action of gravity and airflow, effectively reducing powder residue and ensuring accurate dispensing volume each time.

[0034] In one embodiment, the lever 262 has a U-shaped structure and can be formed by bending a thin, elastic metal wire. The open end of the lever 262 is fixedly connected to the mounting base 261, and its closed end has a curved section facing the powder receiving tank 2411. When the powder transfer disc 241 rotates, the lever 262 can elastically deform to avoid being squeezed, and can elastically return to its original position and apply force to the milk powder when the powder receiving tank 2411 is aligned. The structure is simple and reliable.

[0035] Preferably, the powder pressing component 26 is located above the powder transfer tray 241. Compared to a layout where the powder is located below the powder transfer tray 241, this arrangement effectively prevents milk powder from flowing through and adhering to the dispensing block 262 during its descent, thereby preventing milk powder from accumulating, clumping, or remaining on the dispensing block 262 for a long time and ensuring clean powder dispensing.

[0036] In another embodiment, the pusher block 262 can also be made of elastic silicone sheet. The silicone sheet has good flexibility and elasticity, and can generate adaptive deformation when the powder transfer disk 241 rotates, ensuring that the powder transfer disk 241 rotates smoothly; when the powder receiving tank 2411 rotates to the corresponding position of the powder discharging channel 22, the elastic silicone sheet can extend into the powder receiving tank 2411 to gently push the milk powder in the tank and completely discharge the milk powder.

[0037] In a preferred embodiment, see [reference] Figure 4 The quantitative powder dispensing mechanism 2 also includes a plasma generator 27. The electrode needle 271 of the plasma generator 27 extends into the powder dispensing channel 22 and is located between the air outlet of the blower assembly 23 and the powder transfer plate 241. The plasma generator 27 has multiple functions: First, the high-voltage electric field it generates can ionize the air, producing a large number of positive and negative ions, which are used to neutralize the static electricity generated by friction during the falling of the milk powder, preventing the milk powder from adsorbing onto the channel wall or the powder transfer plate, and avoiding the powder from clumping due to static electricity. Clumped milk powder will increase the difficulty of mixing the milk powder with warm water evenly in the mixing box later. Second, the ionization process also produces a small amount of ozone. After the milk is prepared, the blower assembly 23 can continue to work, driving the ions and ozone oxygen flow downward through the powder dispensing channel 22 and blowing the inside of the mixing box 3. This not only dries the residual moisture in the powder dispensing channel 22 and the milk mixing box 3, but also uses the oxidizing properties of ozone to sterilize and disinfect the powder dispensing channel 22, the milk mixing box 3, and other parts that come into contact with the milk.

[0038] In practical applications, the control system of the milk powder machine can also be preset with a timed sterilization program. This program can automatically activate the blower assembly 23 and the plasma generator 27 during non-milk preparation periods, for example, set to start two to three times a day. The blower assembly 23 generates airflow, while the plasma generator 27 simultaneously ionizes the air to generate ozone. The airflow delivers the ozone and distributes it throughout components such as the powder dispensing channel 22 and the mixing container 3, utilizing the strong oxidizing properties of ozone for thorough sterilization.

[0039] In a preferred embodiment, see [reference] Figure 2 , 3 4. The bottom of the powder storage box 21 is provided with a bottom cover 6, which, together with the bottom of the powder storage box 21, forms a powder transfer cavity 62. The powder transfer disc 241 is rotatably embedded in the powder transfer cavity 62. Specifically, the powder storage box 21 has a powder storage cavity 212 for storing milk powder inside. The first powder outlet 211 is located at the bottom of the powder storage cavity 212. The powder storage box 21 and the powder dispensing channel 22 adopt an integral molding structure, so that the powder dispensing channel 22 is located on the side of the powder storage cavity 212 and close to the first powder outlet 211, which can effectively improve the compactness and stability of the overall structure. The bottom of both the first powder outlet 211 and the powder dispensing channel 22 are connected to the powder transfer cavity 62. The bottom cover 6 has a second powder outlet 61 coaxially arranged with the powder dispensing channel 22, which extends into the guide cavity 31. Thus, the powder dispensing channel 22 and the second powder outlet 61 are coaxially corresponding and cooperate to form a continuous powder dispensing path. The bottom cover 6 can seal and position the powder transfer plate 241 within the powder transfer cavity 62, facilitating the assembly, positioning, and stable rotation of the powder transfer plate 241. During operation, the milk powder rotates under the drive of the powder transfer plate 241 to the top of the powder discharge channel 22, and then falls through the second powder outlet 61 to the mixing box 3 below, ensuring a smooth powder discharge process with no splashing and minimal residue.

[0040] Preferably, the peripheral wall of the powder transfer cavity 62 is provided with a first perimeter 621, and the bottom cover 6 is provided with a second perimeter 63 sleeved outside the first perimeter 621. The first perimeter 621 and the second perimeter 63 are nested together to better seal the powder transfer cavity 62 and effectively prevent milk powder leakage or external moisture from entering.

[0041] Specifically, the first rotating assembly 24 further includes a first drive motor 242. The bottom of the powder transfer disk 241 has a first groove 2412 coaxially arranged with its axis, and a first positioning post 2413 is provided within the first groove 2412. The bottom cover 6 has a first boss 64 coaxially arranged with the first positioning post 2413, which is sleeved on the outside of the first positioning post 2413 and extends into the first groove 2412, thus forming a nested positioning structure. The first drive motor 242 is fixedly mounted on the bottom cover 6, and its output shaft is inserted and fixedly connected to the first positioning post 2413. During operation, the first drive motor 242 drives the first positioning post 2413 to rotate, thereby causing the powder transfer disk 241 to rotate smoothly around its own axis. Through the above arrangement, the assembly sealing between the powder transfer cavity 62 and the bottom cover 6 can be effectively improved.

[0042] Further, see Figure 3 The powder dispensing channel 22 is provided with at least one narrowing section 221, the inner diameter of which gradually decreases towards the downstream, forming a gradually narrowing guide structure. In this embodiment, there are two narrowing sections 221, arranged sequentially along the axial direction of the powder dispensing channel 22. The gradual narrowing of the inner diameter of the powder dispensing channel 22 can effectively increase the airflow and the falling speed of the milk powder, enhance the smoothness of powder dispensing, and further strengthen the positive airflow pressure in the channel to better block the backflow of moisture in the mixing box below.

[0043] Preferably, the inner diameter of the bottom of the powder discharge channel 22, the inner diameter of the powder receiving trough 2411, and the inner diameter of the second powder outlet 61 gradually decrease in size, forming a progressively narrowing guide channel. This design can guide the powder and airflow to converge and accelerate, ensuring a smooth and continuous powder discharge process and complete powder delivery, minimizing milk powder residue in the transport path.

[0044] In a preferred embodiment, see [reference] Figure 3 , 4The quantitative powder dispensing mechanism 2 further includes a positioning sensing component 7, which comprises a Hall sensor 71 and several magnets 72. The magnets 72 are arranged in a circumferential array on the powder transfer disk 241, with each magnet 72 corresponding to one of the powder receiving slots 2411. The Hall sensor 71 is located on the bottom cover 6 and is used to detect the passage of the magnets 72 and output a pulse signal. Specifically, a circuit board 73 is mounted on the bottom cover 6, and the Hall sensor 71 is soldered and fixed to the circuit board 73. The controller of the milk powder machine is electrically connected to the circuit board 73. By collecting the pulse signal fed back by the Hall sensor 71, the number of powder receiving slots 2411 that have been passed can be identified, thereby accurately controlling the number of powder dispensing cycles and achieving closed-loop control of quantitative powder dispensing. In this embodiment, seven powder receiving slots 2411 are evenly arranged on the powder transfer disk 241, and the nominal filling amount of milk powder in a single powder receiving slot 2411 is approximately 0.85g. The controller of the milk powder machine can accurately accumulate the total weight of the powder by controlling the number of powder troughs 2411 passing through the powder dispensing channel 22, thereby meeting the preparation needs of different milk proportions.

[0045] Further, see Figure 3 , 4 The quantitative powder dispensing mechanism 2 further includes a powder-dispensing rod 28, which is rotatably connected to the powder scraping disc 251 and located on the upper surface of the powder scraping disc 251. The powder-dispensing rod 28 has two rods extending towards the inner wall of the powder storage cavity 212. The inner wall of the powder storage cavity 212 has corresponding locking positions 213, with the ends of the rods embedded in the locking positions 213. Because the locking positions 213 are fixed to the inner wall of the powder storage cavity 212, the powder-dispensing rod 28 remains stationary relative to the powder storage cavity 212, while the powder scraping disc 251 can rotate freely relative to the powder storage cavity 212, thus creating a relative rotation between the powder scraping disc 251 and the powder-dispensing rod 28. During operation, the stationary powder-dispensing rod 28 guides, disperses, and flattens the milk powder on the rotating powder scraper 251. In conjunction with the rotation of the powder scraper 251, the milk powder is evenly pushed to the first powder outlet 211 area, so that the milk powder can be evenly and fully filled into each powder container 2411, ensuring that the amount of powder in each powder container 2411 is uniform and stable.

[0046] Preferably, the bottom of the powder scraper 251 is provided with a second groove 2511 coaxially arranged with its axis and extending upward, and a second positioning post 2512 coaxially arranged within the second groove 2511. The bottom of the powder storage box 21 is provided with a second boss 214, which is sleeved on the second positioning post 2512 and extends into the second groove 2511, thereby forming a nested positioning structure. The second rotating assembly 25 also includes a second motor 252, which is fixed to the bottom of the powder storage box 21 by a motor mount, and its output shaft is inserted and fixed to the second positioning post 2512. The second positioning post 2512 is driven to rotate by the second motor 252, thereby driving the powder scraper 251 to rotate smoothly around its own axis. Through the above-mentioned nested positioning and driving structure, the structural sealing and transmission stability at the connection between the powder storage box 21 and the second rotating assembly 25 can be effectively improved.

[0047] In a preferred embodiment, see [reference] Figure 2 , 3 The top of the body 1 is hinged to a top cover 15, which is used to open and close the top opening of the powder storage box 21. A sealing ring 151 is provided between the top cover 15 and the edge of the opening of the powder storage box 21. When the top cover 15 is closed, the sealing ring 151 is compressed, which can effectively seal the powder storage cavity 212, prevent external moisture and dust from entering, and prevent the milk powder inside the box from leaking out, thus ensuring a dry and clean powder storage environment.

[0048] Furthermore, a push-button latch is provided on the top of the body 1. This push-button latch is used to lock the relative position of the upper cover 15 and the body 1 when the upper cover 15 is closed, ensuring that the powder storage box 21 is reliably sealed. When powder needs to be added, the user presses the latch, the lock is released, and the upper cover 15 can automatically spring open at a certain angle under the action of a preset torsion spring (not shown in the figure), realizing convenient one-handed opening and effectively improving operating efficiency and user experience.

[0049] In a preferred embodiment, see [reference] Figure 7The guiding cavity 31 includes a vertical section 311 and a conical guiding section 312 connected in sequence. The conical guiding section 312 is designed to taper inward in a downward direction. The axis of the water inlet channel 11 is located tangentially to the vertical section 311. The second powder outlet 61 is close to the water inlet channel 11, and the bottom of the second powder outlet 61 is provided with an inclined surface 611 that matches the inner wall of the conical guiding section 312. With the above configuration, when warm water is injected tangentially from the water inlet channel 11 into the vertical section 311, it will form a rotating downward water flow under the guidance of the inner wall of the guiding cavity 31. This rotating water flow can quickly envelop and carry the milk powder falling from the second powder outlet 61 into the vortex, so that the milk powder is fully pre-mixed and pre-dispersed with the warm water before entering the mixing chamber 32, effectively reducing the possibility of dry powder clumping and falling directly into the mixing chamber 32. The tapered structure of the conical guiding section 312 helps to accelerate the flow of the mixture into the mixing chamber 32. The bottom slope 611 of the second powder outlet 61 makes the milk powder fall closer to the cavity wall, which is easier to be captured by the swirling flow and reduces the milk powder residue in the guide cavity 31.

[0050] In a preferred embodiment, see [reference] Figure 9 The machine body 1 includes a main body 12, a front panel 13, and a U-shaped plate 14. The front panel 13 and the U-shaped plate 14 are located on the front side of the main body 12, and the U-shaped plate 14 is located below the front panel 13. The U-shaped plate 14 is recessed towards the inside of the main body 12 to form a receiving cavity. Specifically, a water collection tank 16 is provided at the bottom of the receiving cavity, the outline of which is adapted to the shape of the mounting part 34 of the milk mixing box 3. The milk mixing box 3 can be installed from bottom to top to the top of the receiving cavity. When automatic milk preparation is performed, the user places the milk bottle in the water collection tank 16 and positions it below the liquid outlet 33 of the milk mixing box 3 to smoothly receive the prepared milk.

[0051] like Figure 9As shown, the mixing box 3 also includes a mounting part 34, which is fastened to the U-shaped plate 14. The front side of the mounting part 34 has a stepped part 341, which abuts against the bottom of the front plate 13. When the mounting part 34 of the mixing box 3 is fully fastened into the receiving cavity, the fastening of the two side walls of the U-shaped plate 14 with the mounting part 34, the abutment of the middle side wall of the U-shaped plate 14 with the outer side wall of the mounting part 34, and the abutment of the stepped part 341 with the front plate 13 together form multiple positioning and fixing mechanisms, ensuring a stable connection between the mixing box 3 and the machine body 1, and preventing displacement or loosening due to vibration during mixing. For disassembly, the user only needs to pull the mixing box 3 downwards with slight force to overcome the fastening force and quickly remove it; the operation is simple and requires no tools. At the same time, the front surface of the front plate 13 is flush with the front surface of the mounting part 34 of the mixing box 3, creating a unified visual effect for the entire machine and significantly improving the product's integrity and aesthetics. In addition, the front panel 13 can be configured as an operating area in practical applications, integrating a touch screen, function buttons and status indicator lights, supporting operations such as brewing mode selection, temperature adjustment, and stirring time setting.

[0052] Preferably, the front middle of the mounting part 34 is provided with an inwardly recessed relief position 342. The relief position 342 extends vertically and naturally divides the front surface of the mounting part 34 and the stepped part 341 into left and right sections. Through the above-mentioned arrangement, a convenient gripping point is provided for the user to disassemble and assemble the mixing box 3. The user can easily apply force by pinching the parts on both sides of the relief position 342, which further improves the convenience of disassembling and assembling the mixing box 3.

[0053] Further, see Figure 9The U-shaped plate 14 is provided with at least one positioning strip 141 extending vertically. The mounting part 34 is provided with a positioning groove 343 that matches the positioning strip 141. The mounting part 34 is also provided with several symmetrically arranged locking blocks 344, all of which are respectively locked onto the top of both sides of the U-shaped plate 14. During the process of installing the mixing box 3 from bottom to top into the receiving cavity, the positioning strip 141 and the positioning groove 343 form a sliding fit, which not only plays a guiding role, guiding the mounting part 34 to enter the top of the receiving cavity smoothly and steadily, but also further limits the left and right installation position of the mixing box 3. In addition, the locking blocks 344 on both sides of the mounting part 34 are integrally formed with the mounting part 34, and the cross-section of the locking block 344 is triangular, with the side facing the top of the receiving cavity being an inclined guide surface 3441 and the side facing downwards being a first inclined locking surface 3442. When the mixing box 3 is installed at the top of the receiving cavity, each locking block 344 can smoothly slide into and lock onto the top sides of the U-shaped plate 14 with the guidance of the inclined guide surface 3441. The top of the U-shaped plate 14 is provided with a second inclined locking surface 142 that matches the first inclined locking surface 3442. The cooperation between the first inclined locking surface 3442 and the second inclined locking surface 142 forms a stable engagement, realizing the axial limitation of the mixing box 3, thereby ensuring the stability after installation. It should be noted that the top of the U-shaped plate 14 has an open design, which gives it a slight elastic deformation capability. When disassembling, only downward force is needed to easily overcome the locking force of the locking block 344, without affecting the quick assembly and disassembly of the mixing box 3, making the operation convenient and efficient.

[0054] In a preferred embodiment, see [reference] Figure 5 , 6 8. The bottom of the bottom cover 6 is provided with a cover plate 17, and the cover plate 17 has a clearance hole 171. The second powder outlet 61 extends into the interior of the mixing box 3 after passing through this clearance hole 171. The top of the mounting part 34 is provided with a stepped surface 345, and the top of the vertical section 311 of the guide cavity 31 is flush with the stepped surface 345. The cover plate 17 is embedded in the stepped surface 345 and covers the top opening of the vertical section 311. With the above arrangement, on the one hand, the cover plate 17 can close the top opening of the guide cavity 31 after being embedded, effectively preventing the powder-water mixture from splashing upward due to turbulence during the initial mixing or subsequent stirring process, avoiding liquid leakage and contamination of the interior or exterior environment of the machine body 1, and ensuring hygiene during use; on the other hand, the cover plate 17 and the stepped surface 345 of the mounting part 34 of the mixing box 3 form a fitting fit, which can assist in the assembly and positioning of the mixing box 3 and the machine body 1, and improve the assembly stability of the mixing box 3.

[0055] Preferably, see Figure 2 , 68. The water inlet channel 11 is fixed to the bottom cover 6. The stepped surface 345 is provided with a relief groove 346 communicating with the vertical section 311, and the relief groove 346 extends along the tangential direction of the vertical section 311. The water outlet end of the water inlet channel 11 is embedded in the relief groove 346. By setting the relief groove 346, installation space is provided for the water inlet channel 11, so that it forms a compact assembly structure with the mixing box 3 and the cover plate 17, effectively optimizing the internal space layout of the body 1, while ensuring that warm water can smoothly enter the guide cavity 31 along the preset tangential direction and smoothly form a rotating water flow.

[0056] Further, see Figure 7 The stirring mechanism 4 also includes a stirring motor 42. The stirring motor 42 is mounted on the cover plate 17, and its output shaft extends downward into the mixing box 3. The stirring rod 41 is detachably connected to the output shaft of the stirring motor 42. The stirring motor 42 drives the stirring rod 41 to rotate within the stirring chamber 32 to achieve thorough mixing. When it is necessary to clean the stirring rod 41, the user can first remove the mixing box 3 from the machine body 1, and then remove the stirring rod 41 from the output shaft of the stirring motor 42 for thorough cleaning, effectively improving the convenience of cleaning and maintenance of the milk powder machine.

[0057] In a preferred embodiment, see [reference] Figure 10 The water supply mechanism 5 includes a water storage tank 51, a water pump 52, and an instant heating module 53. The water storage tank 51 is detachably mounted on the body 1, and a sterilizing lamp 54 is installed on the top of the water storage tank 51. The water pump 52 and the instant heating module 53 are both located inside the body 1. Along the water flow direction, the outlet of the water storage tank 51, the water pump 52, the instant heating module 53, and the water inlet channel 11 are connected in sequence to achieve quantitative delivery of warm water. The water storage tank 51 is used to store drinking water. Since the water storage tank 51 is detachably connected to the body 1, it is convenient for users to clean and replace it regularly, improving water safety. During operation, the water pump 52 draws water from the water storage tank 51 and delivers it to the instant heating module 53. The instant heating module 53 uses thick-film instantaneous heating technology, which can quickly heat the flowing room temperature water to the target temperature. This instant heating method avoids repeated heating of the water, ensuring water freshness and accurate temperature. The heated warm water is then pumped into the mixing box 3 through the water inlet channel 11. By controlling the flow rate and working time of the water pump 52, the warm water can be quantitatively delivered, thus achieving a precise ratio with the milk powder dispensed by the quantitative powder dispensing mechanism 2.

[0058] Furthermore, a cover 18 can be hinged to the body 1 above the water tank 51, covering the opening of the water tank 51. A germicidal lamp 54 is located at the bottom of the cover 18, and the germicidal lamp 54 can be a UV-C LED. When the cover 18 is closed, the germicidal lamp 54 can continuously irradiate the water in the water tank 51 with ultraviolet light to sterilize it, effectively inhibiting bacterial growth. Moreover, the ultraviolet light is completely shielded inside the tank and will not be exposed, ensuring user safety.

[0059] It is understood that those skilled in the art can make equivalent substitutions or modifications to the technical solution and inventive concept of the present invention, and all such substitutions or modifications should fall within the protection scope of the appended claims.

Claims

1. A milk powder machine characterized by, include: The machine body (1), the quantitative powder dispensing mechanism (2), the milk mixing box (3), and the water supply mechanism (5); The quantitative powder dispensing mechanism (2) includes a powder storage box (21), a powder dispensing channel (22), a blowing assembly (23), a first rotating assembly (24), and a second rotating assembly (25). The powder storage box (21) is located inside the machine body (1) and is used to store milk powder. The bottom of the powder storage box (21) is provided with a first powder outlet (211). The powder dispensing channel (22) extends vertically and is located next to the first powder outlet (211). The air outlet of the blowing assembly (23) is located at the top of the powder dispensing channel (22) and is used to blow air into the powder dispensing channel (22). The output end of the first rotating assembly (24) is provided with a rotatable powder transfer plate (241). The powder transfer tray (241) has several powder receiving slots (2411) arranged in a circular array. The powder receiving slots (2411) are used to fill milk powder. The output end of the second rotating component (25) is provided with a rotatable powder scraping disc (251) located in the powder storage box. The powder scraping disc (251) is used to scrape the milk powder in the powder storage box (21) evenly into the powder receiving slots (2411) facing the first powder outlet (211). Each of the powder receiving slots (2411) can be rotated from the powder receiving position facing the first powder outlet (211) to the position facing the powder discharge channel (22) under the drive of the first rotating component (24), so as to realize the quantitative transfer of milk powder. The mixing box (3) is detachably connected to the body (1) and is located directly below the powder discharge channel (22); the bottom of the mixing box (3) is provided with a downward-extending liquid outlet (33). The water supply mechanism (5) is located on the body (1), and its outlet end is provided with a water inlet channel (11). The water inlet channel (11) is connected to the milk mixing box (3) and is used to quantitatively deliver warm water to the milk mixing box (3). The warm water and the milk powder falling through the powder dispensing channel (22) are mixed evenly in the milk mixing box (3).

2. The milk powder machine according to claim 1, characterized in that, The projection area of ​​the first powder outlet (211) can accommodate at least two powder receiving troughs (2411); the projection area of ​​the powder dispensing channel (22) can accommodate one powder receiving trough (2411).

3. The milk powder machine according to claim 1, characterized in that, It also includes a stirring mechanism (4); the mixing box (3) is provided with a flow guide cavity (31) and a stirring cavity (32) connected to the bottom of the flow guide cavity (31). The inner wall of the stirring cavity (32) is provided with several protruding ribs (321); the output end of the stirring mechanism (4) is provided with a rotatable stirring rod (41). The stirring rod (41) extends into the stirring cavity (32) and is used to stir the mixture of milk powder and water flowing from the flow guide cavity (31).

4. The milk powder machine according to claim 1, characterized in that, The quantitative powder dispensing mechanism (2) further includes a powder pressing component (26); the powder pressing component (26) includes a mounting base (261) and a pusher (262). The mounting base (261) is located on the powder dispensing channel (22). One end of the pusher (262) is connected to the mounting base (261), and the other end extends to the powder transfer plate (241) for dispensing milk powder from the powder container (2411).

5. The milk powder machine according to claim 1, characterized in that, The quantitative powder dispensing mechanism (2) also includes a plasma generator (27), whose electrode needle (271) extends into the powder dispensing channel (22) and is located between the air outlet of the blowing assembly (23) and the powder transfer plate (241).

6. The milk powder machine according to claim 3, characterized in that, The bottom of the powder storage box (21) is provided with a bottom cover (6), and the bottom cover (6) and the bottom of the powder storage box (21) form a powder transfer cavity (62). The powder transfer plate (241) is rotatably embedded in the powder transfer cavity (62). The bottom of the first powder outlet (211) and the powder discharge channel (22) are both connected to the powder transfer cavity (62). The bottom cover (6) is provided with a second powder outlet (61) coaxially arranged with the powder discharge channel (22). The second powder outlet (61) extends into the guide cavity (31).

7. The milk powder machine according to claim 6, characterized in that The quantitative powder dispensing mechanism (2) further includes a positioning sensing component (7), which includes a Hall sensor (71) and several magnets (72). The several magnets (72) are embedded in the powder transfer plate (241) in a circumferential array, and each magnet (72) is correspondingly set with one of the powder receiving tanks (2411). The Hall sensor (71) is located on the bottom cover (6) and is used to detect the passing of the magnet (72) and output a pulse signal.

8. The milk powder machine according to claim 6, characterized in that, The flow guiding cavity (31) includes a vertical section (311) and a conical flow guiding section (312) connected in sequence. The conical flow guiding section (312) is set to contract inward in the downward direction. The axis of the water inlet channel (11) is located in the tangential direction of the vertical section (311). The second powder outlet (61) is close to the water inlet channel (11), and the bottom of the second powder outlet (61) is provided with an inclined surface (611) that is adapted to the inner wall of the conical flow guiding section (312).

9. The milk powder machine according to claim 1, characterized in that, The body (1) includes a body body (12), a front plate (13) and a U-shaped plate (14). The front plate (13) and the U-shaped plate (14) are located on the front side of the body body (12), and the U-shaped plate (14) is located below the front plate (13). The U-shaped plate (14) is recessed towards the inside of the body body (12) to form a receiving cavity. The mixing box (3) also includes a mounting part (34), which is fastened to the U-shaped plate (14). The front side of the mounting part (34) is provided with a stepped part (341), which abuts against the bottom of the front plate (13).

10. The milk powder machine according to claim 1, characterized in that, The water supply mechanism (5) includes a water storage tank (51), a water pump (52) and an instant heating module (53). The water storage tank (51) is detachably mounted on the body (1), and a sterilization lamp (54) is provided on the top of the water storage tank (51). The water pump (52) and the instant heating module (53) are both located inside the body (1). Along the water flow direction, the water outlet of the water storage tank (51), the water pump (52), the instant heating module (53) and the water inlet channel (11) are connected in sequence to realize the quantitative delivery of warm water.

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