Powder feeding device

Abstract

The utility model discloses a powder feeding device, which belongs to the technical field of beverage preparation devices and comprises a machine body, a plurality of bins are arranged on the machine body and used for containing powder, bin doors capable of being opened and closed are mounted at blanking ports of the bins, and a door opening device used for opening the bin doors is arranged on the machine body. The material powder feeding device can be widely applied to brewing various drinks such as milk powder, coffee and rice flour, automatic feeding of material powder into a brewing vessel and automatic water discharging into the brewing vessel are achieved, the material powder and water can be automatically and evenly shaken, the brewing process is greatly simplified, and great convenience is brought to a user; a vibration motor is further arranged on the stock bin or the machine body, so that the powder in the stock bin smoothly falls, the powder is prevented from remaining in the stock bin, waste of the powder is avoided, it is guaranteed that the amount of the powder is sufficient each time, the powder is prevented from being affected with damp, caking and even going bad, waste is avoided, and the using effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of beverage preparation equipment technology, specifically to a powder dispensing device. Background Technology

[0002] Newborns typically need to be fed multiple times at night, which often requires preparing formula. This process involves putting a certain amount of formula into a bottle, adding hot water, shaking repeatedly to mix the formula and water, and finally feeding it to the baby. For mothers who are already sleep-deprived, this series of actions is very tedious and time-consuming. Sometimes, to prepare formula for the baby, mothers need to get out of bed, and after finishing all this, it's difficult to fall back asleep. Therefore, using a formula preparer is essential.

[0003] Currently, there are milk powder mixing machines on the market, which are equipped with multiple independent milk powder compartments. Each milk powder compartment is used to hold a fixed amount of milk powder, so as to realize multiple and quantitative milk powder mixing.

[0004] A search revealed Chinese utility model patent CN218552085U, which discloses a milk powder preparer. Milk powder is pre-added into different chambers within a powder container assembly. A drive mechanism rotates the inner housing within the outer shell, causing a protruding protrusion to open the powder outlet. When the outlet aligns with the exit point, the milk powder placed within the chambers enters the bottle through the outlet and exit point, completing the dispensing of the correct amount of milk powder. A water pump then draws water from the tank into the bottle, thus automatically preparing the milk powder.

[0005] However, the above-mentioned milk powder mixing machine has the following problems during use:

[0006] 1. Often, not all the milk powder in the chamber can fall into the bottle, and some milk powder remains on the inner wall of the chamber, resulting in waste of milk powder and insufficient milk powder for a single feeding.

[0007] 2. Residual milk powder may become damp, clump, or even spoil. During use, if the amount of milk powder is insufficient at one time, the cap may be opened frequently to add more milk powder, which is more likely to cause the milk powder to become damp, clump, or even spoil, affecting the taste of the milk powder and even endangering the baby's health.

[0008] 3. The milk powder in each independent chamber needs to fall into the container through a common outlet. Milk powder is easy to get stuck at the common outlet, which is not easy to clean. The milk powder residue will get damp, clump, or even spoil.

[0009] 4. It adopts a double-layer structure, with an additional bottom cover, making the structure complex;

[0010] 5. The chamber and cover are not transparent, so the amount of milk powder in the hopper and the milk powder feeding situation cannot be observed from the outside. If powder jamming or accumulation occurs, the milk powder ratio and concentration will not meet the standards. In the long run, this will lead to malnutrition in infants and affect their growth. Utility Model Content

[0011] The purpose of this invention is to provide a powder dispensing device that can quantitatively dispense powder into a mixing vessel and mix the powder and water in the mixing vessel.

[0012] To achieve the above objectives, this utility model discloses a powder dispensing device, comprising a body with several hoppers. Each hopper has an inlet at the top for loading powder into it, and a discharge port at the bottom for allowing powder, such as milk powder, to fall into a mixing container. A hopper door is installed at the discharge port, and the body has an opening device for opening the door. When a beverage needs to be prepared, the opening device is activated, opening the hopper door and allowing the powder to fall into the mixing container, such as a baby bottle. Each hopper contains a separate amount of powder, facilitating control of the amount prepared per batch and easy observation of any powder residue, preventing waste. Furthermore, since the powder can be pre-measured in the hoppers, users do not need to retrieve powder temporarily or pre-fill the hoppers, providing great convenience.

[0013] Several hoppers are set up separately, and each hopper has a first discharge port at the bottom. The powder falls directly into the mixing vessel through the first discharge port, which greatly reduces the possibility of clogging and prevents powder from accumulating. Each independent hopper can be cleaned separately, which is convenient and hygienic.

[0014] Preferably, the machine body is equipped with a rotatable platform. Two or more hoppers are located on the platform and arranged around its rotation center. A platform drive mechanism is connected to the bottom of the platform to rotate it. The platform drive mechanism is mounted on the machine body. A hopper mounting section is provided on the platform corresponding to the hopper. When the platform rotates the hopper to a preset position above the mixing container, the opening device opens the hopper door, allowing powder to fall into the mixing container through the discharge port. The platform rotates the hopper to the preset position above the mixing container, and the opening device automatically opens the hopper door, allowing the powder to fall into the mixing container for powder preparation. After preparation, the platform moves the hopper away from the mixing container. This powder preparation mechanism is simple in structure and easy to use. The powder dispensing device can precisely control the opening of the hopper door when it is directly above the mixing vessel, preventing the powder from spilling outside the mixing vessel and causing waste.

[0015] Preferably, the top of the machine body is equipped with a machine compartment, and the machine compartment is equipped with a machine cover. The machine compartment is used to house the hopper, the platform, and the platform-driven mechanism. The machine compartment and the machine cover provide enclosed storage for the hopper, the platform, and the platform-driven mechanism, protecting the relevant components, preventing dust from falling into the hopper, ensuring cleanliness and hygiene. At the same time, the machine compartment and the machine cover can be designed in various shapes or styles to achieve an aesthetically pleasing effect.

[0016] Preferably, the hopper is fixedly mounted on the platform as an integrated unit. This integrated mounting allows for the simultaneous removal of both the hopper and the platform for cleaning or adding powder, making the process convenient, quick, and easy to assemble and disassemble.

[0017] Preferably, the hoppers are detachably mounted on the platform. This detachable mounting allows each hopper to be individually removed for cleaning or powder replenishment, making assembly and disassembly convenient and quick.

[0018] Preferably, the top of the machine body is equipped with a storage hopper for holding the powder. The hopper is integrally or detachably installed at the bottom of the storage hopper and faces the mixing vessel. A powder dispensing mechanism is provided between the storage hopper and the mixing vessel to distribute the powder from the storage hopper to the mixing vessel. The storage hopper can store a large amount of powder, and the powder dispensing mechanism can quantitatively dispense powder into the mixing vessel, eliminating the need to pre-fill the mixing vessel and making it more convenient to use.

[0019] Preferably, the powder dispensing mechanism includes a turntable installed inside the storage silo. The turntable has a discharge hole, and when the turntable rotates to a set position, the powder in the storage silo can fall into the silo through the discharge hole. Rotating the turntable so that the discharge hole is directly facing the silo allows the powder in the storage silo to fall into the silo, thus achieving powder dispensing. After completion, rotating the turntable away from the silo is sufficient. This powder dispensing mechanism has a simple structure and is easy to use.

[0020] Preferably, a sealing cover is provided at the feed inlet, and the powder in the hopper is sealed and preserved through the sealing cover and the hopper door to prevent the powder from deteriorating due to moisture.

[0021] Preferably, the hopper door is installed in one piece or detachably at the material inlet. The hopper door remains closed until the hopper reaches the preset position. When the hopper reaches the preset position, the door opening device opens the hopper door by directly acting on the hopper door or by acting on the hopper door locking device.

[0022] Preferably, when the door opening device opens the hopper door by directly acting on the hopper door, the hopper door is set at the material inlet by horizontal swinging, horizontal sliding or hinge. At this time, the hopper door only opens when the hopper reaches the preset position and remains closed when it moves away from the preset position. This can prevent residual powder in the hopper from spilling, keep the device clean and tidy, reduce the number of times the user cleans, and prevent residual powder in the hopper from getting damp, affecting the taste and quality of the subsequent brewing of new powder.

[0023] When the door opening device opens the bin door by acting on the bin door locking device, the bin door is hinged at the material discharge port and remains free to open and close.

[0024] Preferably, the silo door locking device includes a swing arm hinged to the silo, with the hinge point located in its middle. A hook is provided at the lower end of the swing arm to engage the free end of the silo door, keeping it closed. A first elastic element is provided between the swing arm and the silo sidewall to maintain the hook engaging the free end of the door. When the upper end of the swing arm is pressed, the hook disengages from the door, thus opening the door. With this structure, when the silo reaches a preset position, the door opening device automatically presses against the upper end of the swing arm to open the door. The structure is simple and easy to use.

[0025] Preferably, the silo door locking device includes a swing arm hinged to the silo, with the hinge point at its top. A hook is provided at the lower end of the swing arm to engage the free end of the silo door, keeping it closed. A first elastic element is provided between the swing arm and the silo sidewall to maintain the hook's engagement with the free end of the door. When the middle of the swing arm is pressed down, the hook disengages from the door, thus opening the door. With this structure, when the silo reaches a preset position, the door opening device automatically presses down on the middle of the swing arm to open the door. The structure is simple and easy to use.

[0026] Preferably, the hopper door locking device includes a push block slidably mounted on the hopper. The bottom end of the push block has a hook for engaging the free end of the hopper door to keep it closed. A first elastic element is provided between the push block and the hopper to maintain the hook engaging the free end of the hopper door. When the top of the push block is pressed, the push block causes the hook to move downwards, disengaging it from the hopper door and thus opening the door. With this structure, when the hopper reaches a preset position, the door opening device automatically presses the top of the push block to open the door. The structure is simple and easy to use.

[0027] Preferably, the door opening device includes a push block mounted on the machine body. When the platform rotates the hopper to a preset position above the mixing vessel, the push block presses against the hopper door locking device or the hopper door, causing the free end of the hopper door to disengage and thus opening the hopper door. When the hopper rotates with the platform to reach the set position, the push block automatically presses against the hopper door locking device or the hopper door. The advantage of this structure is that the hopper door opens automatically when the hopper is in place, the door opening device does not require separate control, and this structure is relatively reliable.

[0028] Preferably, the door opening device includes a push rod slidably mounted on the machine body and a cam mounted on the platform. The cam rotates with the platform, with its larger end acting on the inner end of the push rod, and the outer end of the push rod facing the swing arm. When the platform drives the hopper to rotate to a preset position above the mixing vessel, the cam pushes the outer end of the push rod to press against the hopper door locking device or the hopper door, causing the free end of the hopper door to disengage and thus opening the hopper door. When the hopper rotates with the platform to reach the set position, the cam pushes the outer end of the push rod to press against the hopper door locking device or the hopper door. The advantage of this structure is that the hopper door opens automatically when the hopper is in position, the door opening device does not require separate control, and this structure is relatively reliable.

[0029] Preferably, the door opening device includes a power component mounted on the machine body capable of outputting linear motion. When the platform rotates the hopper to a preset position above the mixing vessel, the power output end of the power component extends out to press against the door locking device or the door, causing the free end of the door to disengage and thus opening the door. When the hopper rotates with the platform to reach the set position, the power output end of the power component extends out to press against the door locking device or the door. The advantage of this structure is that the door opens automatically when the hopper is in position, the door opening device does not require separate control, and the power component is easy to control and install.

[0030] Preferably, when the opening device directly acts on the bin door to open it, the opening device includes a drive motor mounted on the bin for driving the bin door to open and close. When the bin rotates with the platform to the set position, the opening device directly acts on the bin door to open it. The advantage of this structure is that the bin door opens automatically when the bin is in place, reducing the number of parts used, simplifying the structure, making maintenance convenient, and increasing efficiency.

[0031] Preferably, the machine body is equipped with a water outlet pipe for connection to a water supply device. The water outlet pipe has a drain port for dispensing water into the mixing vessel. The drain pipe section containing the drain port is located below the material hopper. The drain pipe section is mounted on the machine body in a manner that allows it to swing left and right. The machine body is equipped with a first power device for driving the drain pipe section to swing. When the powder in the material hopper falls into the mixing vessel, when the drain pipe section swings to one side, the drain port is located directly below the material outlet. When the drain pipe section continues to swing to one side or the other side, the drain port moves away from the material outlet. When the drain pipe section swings to the point where the drain port is below the material outlet, water can be dispensed into the mixing vessel. When the drain pipe section swings to the point where the drain port moves away from the material outlet, it avoids obstructing the falling of the powder and also prevents the powder from falling onto the drain pipe section.

[0032] Preferably, the machine body is equipped with a water outlet pipe for connection to a water supply device. The water outlet pipe has a drain port for dispensing water into the mixing container. The drain pipe section containing the drain port is located below the material hopper and is slidably connected to the machine body in a retractable manner. The machine body is equipped with a second power device for driving the extension and retraction of the drain pipe section. When the powder in the material hopper falls into the mixing container, the drain pipe section extends forward to directly above the mixing container to dispense water. After dispensing, the drain pipe section retracts, and the drain port moves to its initial position. The extended drain pipe section allows water to be dispensed into the mixing container, while the retracted drain pipe section prevents obstruction of the powder's fall and avoids powder falling onto the drain pipe section itself.

[0033] Preferably, a notch is provided between adjacent hoppers, and a water outlet pipe is installed on the machine body for connection to a water supply device. The water outlet pipe has a drain port for discharging water into the mixing container. The drain pipe section containing the drain port is located above the hopper. When the notch moves above the mixing container, the drain port discharges water, which enters the mixing container through the notch. With this structure, the powder addition and the discharging of water into the mixing container occur sequentially and independently, without affecting each other.

[0034] Preferably, a vibration motor is installed on the hopper. The vibration motor is installed on the hopper to ensure that the powder material falls smoothly and to prevent the powder material from being difficult to slide down due to clumping, moisture or other reasons.

[0035] Preferably, the machine body is equipped with a vibration motor, which has vibration protrusions. When the platform drives the hopper to rotate to a preset position above the mixing vessel, the vibration protrusions on the vibration motor can act on the hopper to cause the powder to fall. The vibration motor is mounted on the machine body, requiring only one vibration motor, which simplifies the structure and reduces costs. At the same time, the friction between the hopper and the platform is small during vibration, which can reduce noise.

[0036] Preferably, the powder dispensing device is made entirely or partially of transparent material. By using transparent material, the amount of powder in the hopper and the powder dispensing process can be observed from the outside, allowing for timely detection of powder jams or accumulations, thereby ensuring the correct milk powder ratio and concentration.

[0037] The beneficial effects of this utility model are as follows:

[0038] 1. It can be widely used to prepare various beverages such as milk powder, coffee, and rice noodles. It not only automatically adds powder and water to the preparation container, but also automatically mixes the powder and water, greatly simplifying the preparation process and bringing great convenience to users.

[0039] 2. It is also equipped with a vibration motor on the hopper or machine body to ensure that the powder in the hopper falls smoothly, prevents the powder from remaining in the hopper, avoids powder waste, ensures sufficient powder quantity per batch, prevents the powder from getting damp and clumping or even deteriorating, avoids waste, and improves the use effect.

[0040] 3. By setting up multiple separate material bins, each with a discharge port at the bottom, the powder falls directly into the mixing vessel through the discharge port, greatly reducing the possibility of clogging and preventing powder accumulation. The structure is simple and easy to clean.

[0041] 4. The powder dispensing device is made of transparent material, allowing external observation of the amount of powder in the hopper and the powder dispensing process. This enables timely detection of powder jams or accumulations, ensuring that the milk powder is prepared at the correct ratio and concentration. Attached Figure Description

[0042] Figure 1 This is the external design drawing of this utility model;

[0043] Figure 2 This is a perspective view of the first embodiment of the present invention with the engine compartment hidden.

[0044] Figure 3 This is a schematic diagram of the structure of the first embodiment of this utility model;

[0045] Figure 4 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0046] Figure 5 This is a structural schematic diagram of the third embodiment of the present invention;

[0047] Figure 6 This is a schematic diagram of the structure of the fourth embodiment of this utility model;

[0048] Figure 7 This is a structural schematic diagram of the fifth embodiment of this utility model;

[0049] Figure 8 yes Figure 7 A schematic diagram of the structure after being cut along the CC line;

[0050] Figure 9 This is a schematic diagram of the structure of the sixth embodiment of this utility model;

[0051] Figure 10 This is a schematic diagram of the structure of the sixth embodiment of this utility model in another working state;

[0052] Figure 11 This is a structural schematic diagram of the seventh embodiment of this utility model;

[0053] Figure 12This is a perspective view of the seventh embodiment of this utility model, showing the engine bay after it has been concealed.

[0054] Figure 13 This is a top view of the seventh embodiment of the present invention, showing the concealed engine bay.

[0055] Figure 14 yes Figure 2 A magnified view of a section at point A in the middle;

[0056] Figure 15 yes Figure 3 A magnified view of a section at point B in the middle;

[0057] Figure 16 This is a structural schematic diagram of the eighth embodiment of the present utility model;

[0058] Figure 17 This is a structural schematic diagram of the ninth embodiment of this utility model;

[0059] Figure 18 These are structural schematic diagrams of the tenth, eleventh, and twelfth embodiments of this utility model;

[0060] Figure 19 These are schematic diagrams of the thirteenth, fourteenth, and fifteenth embodiments of this utility model;

[0061] Figure 20 This is a structural schematic diagram of the sixteenth embodiment of this utility model;

[0062] Figure 21 This is a structural schematic diagram of the seventeenth embodiment of this utility model;

[0063] Figure 22 This is a structural schematic diagram of the eighteenth embodiment of this utility model.

[0064] In the diagram: 1. Machine body, 10. Push block, 101. Press block, 11. Top rod, 111. Cam, 12. Power unit, 13. Material mixing device, 14. Swing arm, 15. Hook, 16. Vibration motor, 17. Water outlet pipe, 18. Water outlet, 19. Water outlet section, 2. Hopper, 20. Water storage container, 21. Water pump, 22. Base, 23. Vertical plate, 24. Drive motor, 3. Material drop port, 30. Storage space, 31. Mixing container, 4. Hopper door, 5. Machine compartment, 51. Material storage hopper, 6. Platform, 61. Platform with rotating mechanism, 62. Turntable, 63. Material drop hole, 7. Hopper mounting part, 8. Notch. Detailed Implementation

[0065] This utility model discloses a beverage mixing machine, which automatically adds powder to the mixing container 31 and mixes the powder and water in the mixing container 31, making it convenient for beverage preparation.

[0066] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0067] like Figure 1 As shown, the beverage mixing machine disclosed in this utility model includes a base 22, a vertical plate 23 connected to the base 22, a powder dispensing device located on the top of the vertical plate 23, a storage space 30 for accommodating a water storage container 20 located behind the vertical plate 23 on the base 22, and a powder mixing device 13 located in front of the vertical plate 29 on the base 28. The powder dispensing device is used to dispense powder and automatically dispensing water into the mixing container 31. The powder mixing device 13 can both mix the powder and water and adjust the height of the mixing container 31.

[0068] Several hoppers are set up separately, and each hopper has a first discharge port at the bottom. The powder falls directly into the mixing vessel through the first discharge port, which greatly reduces the possibility of clogging and prevents powder from accumulating. Each independent hopper can be cleaned separately, which is convenient and hygienic.

[0069] like Figure 2 , Figure 3 and Figure 15 As shown, this utility model first discloses a powder feeding device, including a body 1, a plurality of hoppers 2 on the body 1, a discharge port 3 on the hopper 2 for allowing the powder in the hopper to fall into the mixing container 31, a hopper door 4 that can be opened and closed is installed at the discharge port 3 of the hopper 2, and an opening device for opening the hopper door 4 is provided on the body 1.

[0070] like Figure 3 As shown in the embodiment of this utility model, the powder dispensing device can adopt the following structure: a rotatable platform 6 is installed on the body 1, and two or more hoppers 2 are arranged on the platform 6 around the rotation center of the platform 6. In this embodiment, each hopper 2 contains powder individually, which facilitates control of the amount of powder prepared per batch and allows for easy observation of whether there is any powder residue in the hopper 2, preventing powder waste. Since the powder can be pre-quantified and placed in the hopper, the user does not need to temporarily take out powder or pre-place powder in the hopper, which brings great convenience to the user. Multiple hoppers 2 can be placed on the platform 6, thereby allowing multiple portions of powder to be pre-quantified, which is particularly suitable for application scenarios where milk powder needs to be prepared multiple times at night.

[0071] Furthermore, the bottom end of the platform 6 is connected to a platform rotation mechanism 61 for driving the platform 6 to rotate. The platform rotation mechanism 61 is installed on the body 1. The platform 6 is provided with a material bin mounting part 7 corresponding to the material bin 2. The material bin 2 is located at the material bin mounting part 7. When the platform 6 drives the material bin 2 to rotate to a preset position above the mixing container 31, the door opening device opens the bin door 4 of the material bin 2 that has reached the preset position, and the powder can fall into the mixing container 31 through the discharge port 3.

[0072] The machine body 1 has a machine compartment 5 on top, and a machine cover on the machine compartment 5. The machine compartment 5 is used to house the hopper 2, the platform 6, and the platform rotating mechanism 61. The hopper mounting part 7 is used to fix the hopper 2. The platform rotating mechanism 61 delivers the hopper 2 containing powder to the top of the mixing container 31 for feeding. After feeding, the platform rotating mechanism 61 carries the empty hopper 2 away from the top of the mixing container 31 for the next feeding operation. In this embodiment, the powder feeding device can precisely control the opening of the hopper door 4 when the hopper 2 is directly above the mixing container 31 to prevent the powder in the hopper 2 from spilling outside the mixing container 31 and to prevent powder waste.

[0073] like Figure 4 As shown in the embodiment of this utility model, the powder dispensing device can also adopt the following structure: the top of the machine body 1 is provided with a storage bin 51 for holding the powder, the bin 2 is integrally or detachably installed at the bottom of the storage bin 51 and faces the mixing vessel 31, and a powder dispensing mechanism is provided between the storage bin 51 and the bin 2 for dispensing the powder in the storage bin 51 into the bin 2.

[0074] Specifically, the top of the machine body 1 is provided with a storage bin 51 for holding powder, and a powder dispensing mechanism is provided inside the storage bin 51. The bottom of the storage bin 51 is provided with a second discharge port 52 corresponding to the mixing vessel 31. The powder dispensing mechanism is used to discharge a certain amount of powder into the mixing vessel 31 through the second discharge port 52. A hopper 2 is integrally or detachably installed at the second discharge port 52, and the hopper 2 is directly opposite the mixing vessel 31. The powder dispensing mechanism is used to discharge a certain amount of powder into the hopper 2 through the second discharge port 52.

[0075] The powder dispensing mechanism includes a turntable 62 installed in the storage bin 51. The turntable 62 can be a rotating disc. The turntable 62 is provided with a discharge hole 63. When the turntable 62 rotates to a set position, the powder in the storage bin 51 can fall into the bin 2 through the discharge hole 63.

[0076] Of course, the powder dispensing mechanism can also be a rotating bracket, which can be set as a single compartment or include multiple independently set compartments. Each compartment can be the same or different in size, and each compartment contains a fixed amount of powder.

[0077] like Figure 3 , Figure 5 and Figure 6 As shown in the embodiment of this utility model, the top of the silo 2 is also provided with an inlet for loading powder into the silo 2. A sealing cover is provided at the inlet. The powder in the silo 2 is sealed and stored by the sealing cover and the silo door 4 to prevent the powder from deteriorating due to moisture.

[0078] In an embodiment of this utility model, the hopper 2 can be integrally fixed on the platform 6, and the hopper 2 and the platform 6 can be removed at the same time for cleaning or maintenance.

[0079] In embodiments of this utility model, the hopper 2 can also be detachably installed on the platform 6, and each hopper 2 can be removed individually for cleaning or maintenance.

[0080] The hopper 2 can be funnel-shaped, cylindrical, or inverted funnel-shaped, and there are no restrictions on its shape.

[0081] In embodiments of this utility model, the hopper door 4 is installed integrally or detachably at the material inlet. Before the hopper 2 reaches the preset position (directly above the inlet of the mixing vessel 31), the hopper door 4 remains closed. When the hopper 2 reaches the preset position (directly above the inlet of the mixing vessel 31), the door opening device opens the hopper door 4 by directly acting on the hopper door 4 or by acting on the hopper door locking device.

[0082] When the door opening device opens the hopper door 4 by directly acting on the hopper door 4, the hopper door 4 is set at the material discharge port 3 by horizontal swinging, horizontal sliding or hinge. An elastic element (not shown in the figure) is provided between the hopper door 4 and the hopper 2 to keep the hopper door 4 closed, such as a helical spring, a plane spring, an elastic rope, a torsion spring, etc., which are not limited here.

[0083] With this design, the hopper door 4 can be installed at the material inlet in a normally closed manner. Before the hopper 2 reaches the preset position (directly above the inlet of the mixing vessel 31), the hopper door 4 remains closed. After the hopper 2 finishes feeding the powder and moves away from the preset position (directly above the inlet of the mixing vessel 31), the door opening device returns to the state before acting on the hopper door 4, and the hopper door 4 returns to the closed state under the action of the elastic element, thereby realizing that the hopper door 4 is normally closed.

[0084] Of course, the door opening device can be a motor directly connected to the compartment door 4. The motor can be a rotary motor or a linear motor, which directly controls the opening or closing of the compartment door 4.

[0085] Before the material hopper 2 reaches the preset position (directly above the inlet of the mixing vessel 31), the motor controls the hopper door 4 to remain closed; when the material hopper 2 reaches the preset position (directly above the inlet of the mixing vessel 31), the motor controls the hopper door 4 to swing horizontally, slide horizontally, or rotate along the hinge axis, thereby opening the hopper door 4; after the material hopper 2 has finished dispensing the powder and moved away from the preset position (directly above the inlet of the mixing vessel 31), the motor controls the hopper door 4 to swing horizontally, slide horizontally, or rotate in the opposite direction along the hinge axis, thereby achieving the normal closure of the hopper door 4.

[0086] The door 4 is only opened when the hopper 2 reaches the preset position (directly above the inlet of the brewing vessel 31) and remains closed when it is away from the preset position (directly above the inlet of the brewing vessel 31). This can prevent residual powder in the hopper 2 from spilling, keep the device clean and tidy, reduce the number of times the user cleans, and prevent residual powder in the hopper 2 from getting damp, which would affect the taste and quality of the brewed powder.

[0087] When the opening device opens the hopper door 4 by acting on the hopper door locking device, the hopper door 4 is hinged at the discharge port 3 and remains freely open and closed. Before the hopper 2 reaches the preset position (directly above the inlet of the mixing vessel 31), the hopper door 4 remains closed under the action of the hopper door locking device; when the hopper 2 reaches the preset position (directly above the inlet of the mixing vessel 31), the opening device acts on the hopper door locking device, the hopper door locking device releases the hopper door 4, and the hopper door 4 opens under its own gravity; after the hopper 2 has finished discharging the powder and moved away from the preset position (directly above the inlet of the mixing vessel 31), the hopper door 4 remains open.

[0088] Among them, such as Figure 15 As shown, in the first embodiment of the silo door locking device disclosed in this utility model, the silo door locking device includes a swing arm 14 hinged to the silo 2. The hinge point of the swing arm 14 is located in its middle part, and a hook 15 is provided at the bottom end of the swing arm 14. The hook 15 is used to hook the free end of the silo door 4 to keep the silo door 4 in a closed state. An elastic element (not shown in the figure), such as a coil spring or elastic rope, is provided between the swing arm 14 and the side wall of the silo 2 to maintain the hook 15 hooking the free end of the silo door 4. When the upper end of the swing arm 14 is pressed, the hook 15 disengages from the silo door 4, thereby opening the silo door 4.

[0089] like Figure 16As shown, in the second embodiment of the silo door locking device disclosed in this utility model, the silo door locking device includes a swing arm 14 hinged to the silo 2. The hinge point of the swing arm 14 is located at its top, and a hook 15 is provided at the bottom end of the swing arm 14. The hook 15 is used to hook the free end of the silo door 4 to keep the silo door 4 in a closed state. An elastic element (not shown in the figure), such as a coil spring or elastic rope, is provided between the swing arm 14 and the side wall of the silo 2 to maintain the hook 15 hooking the free end of the silo door 4. When the middle part of the swing arm 14 is pressed, the hook 15 disengages from the silo door 4, thereby opening the silo door 4.

[0090] like Figure 17 As shown, in the third embodiment of the silo door locking device disclosed in this utility model, the silo door locking device includes a push block 101 slidably disposed on the silo 2. A hook 15 is provided at the bottom end of the push block 101. The hook 15 is used to hook the free end of the silo door 4 to keep the silo door 4 closed. An elastic element, such as a coil spring or elastic rope, is provided between the push block 101 and the silo 2 to maintain the hook 15 hooking the free end of the silo door 4; no limitation is made here. When the top of the push block 101 is pressed, the push block 101 drives the hook 15 to move downwards, causing the hook 15 to disengage from the silo door 4, thereby opening the silo door 4.

[0091] In some embodiments of this utility model, various implementations of the door opening device are disclosed:

[0092] like Figure 3 , Figures 15 to 17 As shown, in the first embodiment of the door opening device disclosed in this utility model, the door opening device opens the door 4 by acting on the door locking device. The door opening device includes a push block 10 installed on the machine body 1. When the platform 6 drives the hopper 2 to rotate to a preset position above the mixing vessel 31 (directly above the mixing vessel 31), the push block 10 presses against the door locking device (the upper end of the swing arm 14, the middle part of the swing arm 14, or the top of the push block 101) so that the hook 15 disengages from the door 4, thereby opening the door 4.

[0093] Furthermore, the push block 10 may be provided with a first protrusion, and the door locking device is provided with a second protrusion corresponding to the first protrusion. When the platform 6 drives the hopper 2 to rotate to the preset position above the mixing vessel 31, the first protrusion on the push block 10 presses against the second protrusion on the door locking device (the upper end of the swing arm 14, the middle of the swing arm 14, or the top of the push block 101) so that the hook 15 disengages from the door 4, thereby opening the door 4.

[0094] The first implementation of the door opening device has a simple structure. The door 4 will only open when the material bin 2 reaches directly above the mixing vessel 31, preventing the material powder from spilling out due to premature opening of the door 4.

[0095] like Figure 5 As shown, in the second embodiment of the door opening device disclosed in this utility model, the door opening device opens the compartment door 4 by acting on the compartment door locking device. The door opening device includes a push rod 11 slidably mounted on the machine body 1 and a cam 111 mounted on the platform 6. The cam 111 rotates with the platform 6. The larger end of the cam 111 acts on the inner end of the push rod 11, and the outer end of the push rod 11 faces the compartment door locking device. When the platform 6 drives the hopper 2 to rotate to a preset position above the mixing container 31, the cam 111 pushes the outer end of the push rod 11 to press against the compartment door locking device (the upper end of the swing arm 14, the middle part of the swing arm 14, or the top of the push block 101), so that the hook 15 disengages from the compartment door 4, thereby opening the compartment door 4. Of course, a return spring that retracts the push rod 11 inward can also be provided on the platform 8 for better performance.

[0096] The second implementation of the door opening device has a simple structure. The cam 111 is driven to rotate by the platform 6. The hopper 2 will only open the door 4 when it reaches directly above the mixing vessel 31, which prevents the hopper 4 from opening too early and causing the powder to spill out. At the same time, it reduces the use of electrical components and lowers the failure rate.

[0097] like Figure 6 As shown, in the third embodiment of the door opening device disclosed in this utility model, the door opening device opens the bin door 4 by acting on the bin door locking device. The door opening device includes a power component 12 installed on the machine body 1 that can output linear motion. When the platform 6 drives the hopper 2 to rotate to a preset position above the mixing container 31, the power output end of the power component 12 extends out and presses against the bin door locking device (the upper end of the swing arm 14, the middle part of the swing arm 14, or the top of the push block 101) to trigger the bin door 4 to open. The power component 12 can be a linear motor, electromagnet, etc.

[0098] The third embodiment of the door opening device has a simple structure. The door 4 is triggered to open by the power component 12 pressing the door locking device (the upper end of the swing arm 14, the middle part of the swing arm 14, or the top of the push block 101). It is simple, convenient, and easy to control.

[0099] like Figure 18 As shown, in the fourth embodiment of the door opening device disclosed in this utility model, the door opening device opens the door 4 by directly acting on the door 4, and the door 4 is set at the material inlet 3 in a horizontal swing manner. The door opening device includes a push block 10 installed on the machine body 1. When the platform 6 drives the hopper 2 to rotate to the preset position above the mixing vessel 31 (directly above the mixing vessel 31), the push block 10 directly presses against the door 4, so that the door 4 swings along the swing center axis, thereby opening the door 4. This reduces the number of parts used, makes the structure simpler, is easier to maintain, and is more efficient.

[0100] In the fifth embodiment of the door opening device disclosed in this utility model, the door opening device opens the door 4 by directly acting on the door 4, and the door 4 is set at the material inlet 3 in a horizontal swing manner. The door opening device includes a push rod 11 slidably set on the machine body 1 and a cam 111 set on the platform 6. The cam 111 rotates with the platform 6. The larger end of the cam 111 acts on the inner end of the push rod 11, and the outer end of the push rod 11 faces the door 4. When the platform 6 drives the hopper 2 to rotate to the preset position above the mixing vessel 31, the cam 111 pushes the outer end of the push rod 11 to press against the door 4, so that the door 4 swings along the swing center axis and thus opens the door 4. This reduces the number of parts used, makes the structure simpler, is easier to maintain, and is more efficient.

[0101] In the sixth embodiment of the door opening device disclosed in this utility model, the door opening device opens the bin 4 by directly acting on the bin door 4, and the bin door 4 is set at the material inlet 3 in a horizontal swing manner. The door opening device includes a power component 12 installed on the machine body 1 that can output linear motion. When the platform 6 drives the hopper 2 to rotate to a preset position above the mixing vessel 31, the power output end of the power component 12 extends out and presses against the bin door 4, so that the bin door 4 swings along the swing center axis, thereby opening the bin door 4. This reduces the number of components used, makes the structure simpler, facilitates maintenance, and increases efficiency. The power component 12 can be a linear motor, electromagnet, etc.

[0102] like Figure 19 As shown, in the seventh embodiment of the door opening device disclosed in this utility model, the door opening device opens the door 4 by directly acting on the door 4, and the door 4 is set at the material inlet 3 in a horizontal sliding manner. The door opening device includes a push block 10 installed on the machine body 1. When the platform 6 drives the hopper 2 to rotate to the preset position above the mixing vessel 31 (directly above the mixing vessel 31), the push block 10 directly presses against the door 4, so that the door 4 slides along the slide rail and thus opens the door 4. This reduces the number of parts used, makes the structure simpler, is easier to maintain and more efficient.

[0103] In the eighth embodiment of the door opening device disclosed in this utility model, the door opening device opens the bin door 4 by directly acting on the bin door 4, and the bin door 4 is horizontally slidably set at the material inlet 3. The door opening device includes a push rod 11 slidably set on the machine body 1 and a cam 111 set on the platform 6. The cam 111 rotates with the platform 6. The larger end of the cam 111 acts on the inner end of the push rod 11, and the outer end of the push rod 11 faces the bin door 4. When the platform 6 drives the bin 2 to rotate to the preset position above the mixing vessel 31, the cam 111 pushes the outer end of the push rod 11 to press against the bin door 4, so that the bin door 4 slides along the slide rail and thus opens the bin door 4. This reduces the number of parts used, makes the structure simpler, is easier to maintain, and is more efficient.

[0104] In the ninth embodiment of the door opening device disclosed in this utility model, the door opening device opens the bin 4 by directly acting on the bin door 4, and the bin door 4 is horizontally slidably disposed at the material inlet 3. The door opening device includes a power component 12 mounted on the machine body 1 capable of outputting linear motion. When the platform 6 drives the hopper 2 to rotate to a preset position above the mixing vessel 31, the power output end of the power component 12 extends out and presses against the bin door 4, causing the bin door 4 to slide along the slide rail and thus open the bin door 4. This reduces the number of components used, simplifies the structure, facilitates maintenance, and increases efficiency. The power component 12 can be a linear motor, electromagnet, etc.

[0105] like Figure 20 As shown, in the tenth embodiment of the door opening device disclosed in this utility model, the door opening device opens the bin door 4 by directly acting on the bin door 4, and the bin door 4 is set at the material inlet 3 in a horizontal swing manner. The door opening device includes a drive motor 24 set on the bin 2 for driving the bin door 4 to open and close. By directly acting on the bin door 4 by the drive motor 24, the bin door 4 is opened by horizontal swing, which is highly efficient and has a simple structure.

[0106] Among them, the drive motor 24 is a rotary motor. The power shaft of the drive motor 24 can be directly set as the swing shaft of the door 4, directly driving the door 4 to open and close; the power shaft of the drive motor 24 can also be connected to the swing shaft of the door 4 through a transmission gear set, indirectly driving the door 4 to open and close, without any restrictions.

[0107] like Figure 21 As shown, in the eleventh embodiment of the door opening device disclosed in this utility model, the door opening device opens the bin door 4 by directly acting on the bin door 4, and the bin door 4 is hinged at the material inlet 3. The door opening device includes a drive motor 24 mounted on the bin 2 for driving the bin door 4 to open and close. By directly acting on the bin door 4 with the drive motor 24, the bin door 4 is opened by horizontal swinging, which is highly efficient and has a simple structure.

[0108] Among them, the drive motor 24 is a rotary motor. The power shaft of the drive motor 24 can be directly set as the hinge shaft of the compartment door 4, directly driving the compartment door 4 to open and close; the power shaft of the drive motor 24 can also be connected to the hinge shaft of the compartment door 4 through a transmission gear set, indirectly driving the compartment door 4 to open and close, without any restrictions.

[0109] like Figure 22As shown, in the twelfth embodiment of the door opening device disclosed in this utility model, the door opening device opens the bin door 4 by directly acting on the bin door 4, and the bin door 4 is horizontally slidably disposed at the material inlet 3. The door opening device includes a drive motor 24 disposed on the bin 2 for driving the bin door 4 to open and close. The drive motor 24 can be a linear motor or an electromagnet, etc. By directly acting on the bin door 4, the bin door 4 is horizontally slid open, which is highly efficient and has a simple structure.

[0110] The drive shaft of the motor 24 can be directly connected to the door 4, directly driving the door 4 to slide horizontally to achieve opening and closing; the drive shaft of the motor 24 can also be indirectly connected to the door 4 through a transmission lever to achieve opening and closing of the door 4, thereby reducing the stroke of the motor 24, saving space, and making it more compact.

[0111] In embodiments of this invention, the powder dispensing device has the function of automatically dispensing water into the mixing vessel 31. Four implementation methods for achieving the automatic water dispensing function are given below.

[0112] like Figure 7 and Figure 8 As shown, in the first embodiment of the automatic water dispensing function disclosed in this utility model, a water outlet pipe 17 for connecting to a water supply device is installed on the machine body 1. The water outlet pipe 17 has a water outlet 18, which is used to dispense water into the mixing container 31. The water outlet 18 is located in a water dispensing pipe section 19 below the material bin 2. The water dispensing pipe section 19 is installed on the machine body 1 in a manner that allows it to swing left and right. The machine body 1 is provided with a first power device for driving the water dispensing pipe section 19 to swing. The first power device can be a swing motor installed on the machine body 1, or it can adopt other structures. The power output end of the power device is connected to the water dispensing pipe section 19, thereby driving the water dispensing pipe section 19 to swing. When the water dispensing pipe section 19 swings so that the water outlet 18 is below the material discharge port 3, the water outlet can dispense water into the mixing container. When the water dispensing pipe section swings so that the water outlet leaves the material discharge port 3, it can avoid obstructing the falling of the powder and at the same time prevent the powder from falling onto the water dispensing pipe section 19.

[0113] When the powder in the hopper 2 falls into the mixing vessel 31, when the drain pipe section 19 swings to one side, the drain outlet 18 is located directly below the discharge port 3. When the drain pipe section 19 continues to swing to one side or the other side, the drain outlet 18 moves away from the discharge port 3. Figure 7 and Figure 8 This refers to the state of the discharge port 18 when it leaves the material discharge port 3 as the discharge pipe section 19 continues to swing to one side or the other.

[0114] like Figure 9 and Figure 10As shown, in the second embodiment of the automatic water dispensing function disclosed in this utility model, a water outlet pipe 17 for connecting to a water supply device is installed on the machine body 1. The water outlet pipe 17 has a water outlet 18 for dispensing water into the rinsing container 31. The water outlet 18 is located below the hopper 2. The water outlet 19 is slidably connected to the machine body 1 in a way that allows it to extend and retract. The machine body 1 is provided with a second power device for driving the extension and retraction of the water outlet 19. The second power device can be a linear motor installed on the machine body 1 or other structures. The power output end of the second power device is connected to the water outlet 19, thereby driving the extension and retraction of the water outlet 19.

[0115] When the powder in the hopper 2 falls into the mixing vessel 31, the water outlet section 19 extends forward to directly above the mixing vessel 31 to release water. After the water is released, the water outlet section 19 retracts backward, and the water outlet 18 moves to the initial position. Figure 9 The water pipe section 19 is in the forward-extending position. Figure 10 This is the retracted state of the water discharge pipe section 19. Of course, this solution is also applicable to the use of a powder dispensing device with a storage bin 51. After the water discharge pipe section 19 extends, the water outlet 18 can dispense water into the mixing container 31. After the water discharge pipe section 19 retracts, it can avoid obstructing the falling of the powder and at the same time prevent the powder from falling onto the water discharge pipe section 19.

[0116] like Figure 11 As shown, in the third embodiment of the automatic water dispensing function disclosed in this utility model, a water outlet pipe 17 for connecting to a water supply device is installed on the machine body 1. The water outlet pipe 17 has a water outlet 18, which is used to dispensing water into the mixing container 31. The water outlet pipe section 19 where the water outlet 18 is located is located above the material bin 2. When the material bin 2 is rotated to a set position by the platform 6, water can be dispensed into the material bin 2 through the water outlet 18. With the above structure, the powder in the material bin 2 can be flushed out at the same time as water is dispensed, so that the powder falls better and the powder and water are pre-mixed, thus improving the mixing effect.

[0117] like Figure 12 and Figure 13As shown, in the fourth embodiment of the automatic water dispensing function disclosed in this utility model, a notch 8 is provided between adjacent hoppers 2. A water outlet pipe 17 for connecting to a water supply device is installed on the body 1. The water outlet pipe 17 has a water outlet 18, which is used to dispense water into the mixing container 31. The water outlet pipe section 19 where the water outlet 18 is located is located above the hopper 2. When the notch 8 moves above the mixing container 31, the water outlet 18 dispenses water, and the water enters the mixing container 31 through the notch 8. The water outlet pipe section 19 where the water outlet 18 is located is fixed relative to the platform 6 or driven to rotate by a power device. After the platform 6 carries the hopper 2 to the set position to complete the powder dispensing, the platform 6 continues to rotate so that the water outlet 18 is directly facing the mixing container 31. With this structure, the powder dispensing and the dispensing of water into the mixing container 31 are carried out sequentially and independently, without affecting each other.

[0118] In an embodiment of this utility model, the powder feeding device is equipped with a vibration motor 16 to ensure the smooth flow of powder from the hopper 2 and prevent the powder from becoming difficult to slide down due to clumping, moisture, or other reasons. Two implementation methods of the vibration motor 16 are given below.

[0119] like Figure 3 As shown, in the first embodiment of the vibration motor 16 of this utility model, a vibration motor 16 is installed on the hopper 2. The vibration motor 16 can be installed on the side wall of the hopper 2. Through the vibration of the vibration motor 16, the powder in the hopper 2 can fall smoothly.

[0120] like Figure 2 and Figure 14 As shown, in the second embodiment of the vibration motor 16 of this utility model, the body 1 is equipped with a vibration motor 16, which has a vibration protrusion. When the platform 6 drives the hopper 2 to rotate to a preset position above the mixing vessel 31, the vibration protrusion on the vibration motor 16 can act on the hopper 2 to cause the powder to fall. In this embodiment, only one vibration motor 16 is needed, which simplifies the structure and reduces costs. At the same time, the friction between the hopper 2 and the platform 6 is small during vibration, which can reduce noise.

[0121] In the embodiments of this utility model, the powder feeding device is made entirely or partially of transparent material. It can be that the hopper 2, the hopper door 4 and the outer shell of the powder feeding device are all made of transparent material, or the hopper 2 and the outer shell of the powder feeding device are made of transparent material, or the hopper 2 and the storage hopper 51 are made of transparent material. As long as the amount of powder in the hopper and the powder feeding situation can be observed from the outside, there is no limitation.

[0122] The transparent material can be glass, plastic, or other transparent materials that meet the standards for infant food, and there are no restrictions on its use.

[0123] Of course, in other embodiments of this utility model, the powder feeding device may also adopt other mechanisms that can realize the powder distribution function in the prior art, such as control valves, and there is no limitation here.

[0124] It should be noted that the mixing vessel mentioned above is a tool for mixing beverages, such as a baby bottle. The reason for mentioning the mixing vessel is to facilitate the description of the usage of this utility model. In this utility model, the powder dispensing device does not necessarily include the mixing vessel.

[0125] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0126] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0127] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A powder dispensing device, comprising a body (1), characterized in that... The machine body (1) is provided with several hoppers (2). The top of the hopper (2) is provided with a feed inlet for loading powder into the hopper (2). The bottom of the hopper (2) is provided with a discharge port (3) for letting the powder in the hopper fall into the mixing vessel (31). The discharge port (3) of the hopper (2) is equipped with a closable door (4). The machine body (1) is provided with an opening device for opening the door (4).

2. The powder feeding device as described in claim 1, characterized in that, The machine body (1) is equipped with a rotating platform (6). The hopper (2) is located on the platform (6) and has two or more hoppers around the rotation center of the platform (6). The bottom end of the platform (6) is connected to a platform rotating mechanism (61) for driving the platform (6) to rotate. The platform rotating mechanism (61) is installed on the machine body (1). The platform (6) is provided with a hopper mounting part (7) corresponding to the hopper (2). The hopper (2) is located at the hopper mounting part (7). When the platform (6) drives the hopper (2) to rotate to a preset position above the mixing vessel (31), the door opening device opens the hopper door (4) of the hopper (2) that has reached the preset position, and the powder can fall into the mixing vessel (31) through the discharge port (3).

3. The powder feeding device as described in claim 2, characterized in that, The machine body (1) has a machine compartment (5) on top, and the machine compartment (5) has a machine body cover. The machine compartment (5) is used to accommodate the hopper (2), the platform (6) and the platform rotating mechanism (61).

4. The powder feeding device as described in claim 2, characterized in that, The hopper (2) is fixedly mounted on the platform (6).

5. The powder feeding device as described in claim 2, characterized in that, The hopper (2) is detachably mounted on the platform (6).

6. The powder dispensing device as described in claim 1, wherein the top of the body (1) is provided with a storage bin (51) for holding powder, the storage bin (51) is provided with a powder dispensing mechanism, and the bottom of the storage bin (51) is provided with a second discharge port (52) corresponding to the mixing vessel (31), and the powder dispensing mechanism is used to dispense a certain amount of powder into the mixing vessel (31) through the second discharge port (52).

7. The powder dispensing device as described in claim 6, wherein a hopper (2) is integrally or detachably installed at the second discharge port (52), and the hopper (2) is directly opposite the mixing vessel (31), and the powder dispensing mechanism is used to dispense a certain amount of powder into the hopper (2) through the second discharge port (52).

8. The powder feeding device as described in claim 4 or 5, characterized in that, A sealing cover is provided at the feed inlet, and the powder in the hopper (2) is sealed and stored through the sealing cover and the hopper door (4).

9. The powder feeding device as described in claim 4 or 5, characterized in that, The hopper door (4) is integrally or detachably installed at the material inlet (3). Before the hopper (2) reaches the preset position, the hopper door (4) remains closed. When the hopper (2) reaches the preset position, the opening device opens the hopper door (4) by directly acting on it; or The door opening device opens the door (4) by acting on the door locking device.

10. The powder feeding device as described in claim 9, characterized in that, When the opening device opens the silo door (4) by directly acting on the silo door (4), the silo door (4) is set at the discharge port (3) by horizontal swinging, horizontal sliding or hinged. When the opening device opens the hopper door (4) by acting on the hopper door locking device, the hopper door (4) is hinged at the discharge port (3) and remains free to open and close.

11. The powder feeding device as described in claim 9, characterized in that, The silo door locking device includes a swing arm (14) hinged to the silo (2), with the hinge point of the swing arm (14) located in the middle. The lower end of the swing arm (14) is provided with a hook (15), which is used to hook the free end of the silo door (4) to keep the silo door (4) closed. A first elastic element is provided between the swing arm (14) and the side wall of the silo (2) to maintain the hook (15) hooking the free end of the silo door (4). When the upper end of the swing arm (14) is pressed, the hook (15) disengages from the silo door (4), thereby opening the silo door (4).

12. The powder feeding device as described in claim 9, characterized in that, The silo door locking device includes a swing arm (14) hinged to the silo (2). The hinge point of the swing arm (14) is located at its top. The lower end of the swing arm (14) is provided with a hook (15). The hook (15) is used to hook the free end of the silo door (4) to keep the silo door (4) closed. A first elastic element is provided between the swing arm (14) and the side wall of the silo (2) to maintain the hook (15) hooking the free end of the silo door (4). When the middle part of the swing arm (14) is pressed, the hook (15) disengages from the silo door (4) to open the silo door (4).

13. The powder feeding device as described in claim 9, characterized in that, The silo door locking device includes a push block (101) slidably disposed on the silo (2). The bottom end of the push block (101) is provided with a hook (15). The hook (15) is used to hook the free end of the silo door (4) to keep the silo door (4) closed. A first elastic element is provided between the push block (101) and the silo (2) to maintain the hook (15) hooking the free end of the silo door (4). When the top of the push block (101) is pressed, the push block (101) drives the hook (15) to move down and disengages the hook (15) from the silo door (4), thereby opening the silo door (4).

14. The powder feeding device as described in claim 9, characterized in that, The door opening device includes a push block (10) installed on the machine body (1). When the platform (6) drives the hopper (2) to rotate to a preset position above the mixing vessel (31), the push block (10) presses against the hopper door locking device or the hopper door (4) so ​​that the free end of the hopper door (4) disengages and the hopper door (4) is opened.

15. The powder feeding device as described in claim 9, characterized in that, The door opening device includes a push rod (11) slidably mounted on the machine body (1) and a cam (111) mounted on the platform (6). The cam (111) rotates with the platform (6). The larger end of the cam (111) acts on the inner end of the push rod (11), and the outer end of the push rod (11) faces the swing arm (14). When the platform (6) drives the hopper (2) to rotate to a preset position above the mixing vessel (31), the cam (111) pushes the outer end of the push rod (11) to press against the hopper door locking device or the hopper door (4), so that the free end of the hopper door (4) disengages and the hopper door (4) is opened.

16. The powder feeding device as described in claim 9, characterized in that, The door opening device includes a power component (12) installed on the machine body (1) that can output linear motion. When the platform (6) drives the hopper (2) to rotate to a preset position above the mixing vessel (31), the power output end of the power component (12) extends out and presses against the hopper door locking device or the hopper door (4) so ​​that the free end of the hopper door (4) disengages and the hopper door (4) is opened.

17. The powder feeding device as described in claim 9, characterized in that, When the opening device opens the silo door (4) by directly acting on the silo door (4), the opening device includes a drive motor (24) installed on the silo (2) for driving the silo door (4) to open and close.

18. The powder feeding device as described in claim 2 or 6, characterized in that, The machine body (1) is equipped with a water outlet pipe (17) for connecting to a water supply device. The water outlet pipe (17) has a water outlet (18) for discharging water into the mixing vessel (31). The water outlet (18) is located in the water outlet section (19) below the hopper (2). The water outlet section (19) is installed on the machine body (1) in a way that allows it to swing left and right. The machine body (1) is equipped with a first power device for driving the water outlet section (19) to swing. When the powder in the hopper (2) falls into the mixing vessel (31), when the water outlet section (19) swings to one side, the water outlet (18) is located directly below the discharge port (3). When the water outlet section (19) continues to swing to one side or the other side, the water outlet (18) leaves the discharge port (3).

19. The powder feeding device as described in claim 2 or 6, characterized in that, The machine body (1) is equipped with a water outlet pipe (17) for connecting to a water supply device. The water outlet pipe (17) has a water outlet (18) for discharging water into the mixing vessel (31). The water outlet (18) is located in the water outlet section (19) below the hopper (2). The water outlet section (19) is slidably connected to the machine body (1) in a way that allows it to extend and retract. The machine body (1) is equipped with a second power device for driving the extension and retraction of the water outlet section (19). When the powder in the hopper (2) falls into the mixing vessel (31), the water outlet section (19) extends forward to the top of the mixing vessel (31) to discharge water. After the water is discharged, the water outlet section (19) retracts backward, and the water outlet (18) moves to the initial position.

20. The powder feeding device as described in claim 2, characterized in that, A notch (8) is provided between adjacent hoppers (2). A water outlet pipe (17) for connecting to a water supply device is installed on the body (1). The water outlet pipe (17) has a drain outlet (18) for discharging water into the mixing vessel (31). The drain pipe section (19) where the drain outlet (18) is located is above the hopper (2). When the notch (8) moves above the mixing vessel (31), the drain outlet (18) discharges water, and the water enters the mixing vessel (31) through the notch (8).

21. The powder feeding device as described in claim 2 or 6, characterized in that, A vibration motor (16) is installed on the hopper (2).

22. The powder feeding device as described in claim 2, characterized in that, The machine body (1) is equipped with a vibration motor (16), and the vibration motor (16) has a vibration protrusion. When the platform (6) drives the hopper (2) to rotate to the preset position above the mixing vessel (31), the vibration protrusion on the vibration motor (16) can act on the hopper (2) to cause the powder to fall.

23. The powder feeding device as described in claim 1, characterized in that, The powder dispensing device is made wholly or partially of transparent material.

Images