A multi-layer coffee bean storage device capable of automatic material falling and a coffee machine

Abstract

The application belongs to the technical field of coffee machine equipment, and discloses a multi-layer coffee bean storage device capable of automatically discharging and a coffee machine. The storage device comprises a bean box assembly in which a plurality of bean boxes are stacked; the bean box comprises a frame body and a material guiding cylinder; the material guiding cylinder is provided with a material guiding opening around the frame body; a magnet floating switch is arranged at the bottom of the material guiding cylinder; the bottom of the material guiding cylinder is connected with the magnet lower cover; the bottom of the material guiding cylinder is a discharging opening, and the magnet lower cover is hollow; a movable magnet is arranged between the bottom of the material guiding cylinder and the magnet lower cover; the movable magnet is matched with the discharging opening and automatically seals the discharging opening under the action of gravity; a fixed magnet is fixed on the frame body and the whole machine; the upper end of the fixed magnet and the lower end of the movable magnet have the same magnetism and repel each other; when the bean box assembly is placed on the whole machine, the lower fixed magnet is opposite to the upper movable magnet, and the movable magnet is lifted up by repulsive force to open the discharging opening; when the bean box assembly is lifted, the repulsive force disappears, and the movable magnet falls to automatically seal the discharging opening. Through the upgrading of the existing bean box, the stacked bean boxes can be expanded as needed, and the use is more flexible and efficient.

Description

A multi-layer coffee bean storage device and coffee machine with automatic feeding function Technical Field

[0001] This invention belongs to the technical field of coffee machine equipment, specifically relating to a multi-layer coffee bean storage device and a coffee machine with automatic dispensing capability. Background Technology

[0002] A coffee machine generally consists of the main machine and a bean hopper located on top of the main machine for storing and feeding coffee beans. The bottom of the bean hopper is connected to the bean inlet of the main machine to supply coffee beans for making coffee.

[0003] Existing coffee bean storage containers have a fixed capacity and cannot be upgraded. If coffee beans are consumed quickly, they need to be added very frequently, which is very inconvenient.

[0004] Existing bean tins increase capacity by raising or lengthening the container, resulting in a bulky individual tin. This makes it inconvenient to take out the tin, fill it with coffee beans, and recycle excess coffee beans, and it cannot be operated flexibly according to actual usage needs. Summary of the Invention

[0005] The present invention aims to solve at least one technical problem existing in the background art, and provides a multi-layer coffee bean storage device and coffee machine with automatic dispensing. By modifying and upgrading the existing bean box, bean boxes can be stacked on the basis of the original bean box to form a bean box component, realizing the bean box expansion on demand, convenient access, and more flexible and efficient operation.

[0006] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0007] A multi-layer coffee bean storage device with automatic dispensing capability, for placing on the entire coffee machine for bean supply, includes a bean box assembly consisting of multiple bean boxes stacked on top of each other;

[0008] The bean box includes a basket body and a guide cylinder disposed at the bottom of the basket body; the guide cylinder has a guide port with open holes around its perimeter and a magnetic floating switch at its bottom; the magnetic floating switch includes a movable magnet and a magnetic lower cover; the bottom of the guide cylinder is fastened to the magnetic lower cover; the bottom opening of the guide cylinder serves as a discharge port, and the magnetic lower cover has a hollow hole that passes through the discharge port for discharging material; a movable magnet is floatingly disposed in the accommodating cavity between the bottom of the guide cylinder and the magnetic lower cover, the movable magnet is adapted to the discharge port, and automatically seals the discharge port under the action of gravity;

[0009] A first fixed magnet is fixedly installed in the frame, and a second fixed magnet is fixedly installed on the whole machine; the upper ends of the first fixed magnet and the second fixed magnet have the same magnetism and the lower end of the movable magnet have magnetic repulsion.

[0010] When the bean box assembly is placed on the machine, the first fixed magnet / second fixed magnet at the bottom faces the moving magnet at the top. The moving magnet is pushed up by the repulsive force to open the feeding port. When the bean box or bean box assembly is picked up, the repulsive force between the magnets disappears, and the moving magnet falls due to gravity and automatically seals the feeding port.

[0011] Furthermore, the first fixed magnet is fixedly disposed in the frame on the side away from the magnetic floating switch; when multiple bean boxes are stacked one on top of the other to form a bean box assembly, the upper first fixed magnet and the lower first fixed magnet are placed alternately.

[0012] Furthermore, the upper end of the feed cylinder is provided with an end face, which is a conical surface.

[0013] Furthermore, the magnetic floating switch also includes a magnetic mounting base;

[0014] The bottom of the magnet fixing base is provided with a second positioning post; the second positioning post is fixedly sleeved on the movable magnet, and the movable magnet and the magnet fixing base float up and down in the accommodating cavity between the guide cylinder and the lower cover of the magnet.

[0015] Furthermore, the upper surface of the magnet holder is a conical surface.

[0016] Furthermore, a base is provided at the bottom of the frame, a hopper is provided on one side of the bottom of the base, and the guide cylinder is provided at the bottom of the hopper.

[0017] Furthermore, a supporting rib is provided on the bottom of the base away from the hopper, and a support platform is provided on the whole machine to support the supporting rib.

[0018] Furthermore, a guide plate is provided on the side of the frame away from the guide cylinder, and the guide plate is inclined and connected to the hopper side plate of the hopper on the same side.

[0019] Furthermore, a support positioning post is provided at the bottom of the hopper and around the guide cylinder, which is used to detachably connect with the corresponding positioning sleeve on the whole machine.

[0020] Meanwhile, the present invention also provides a coffee machine, including a whole machine and a bean storage device as described in any of the above claims, characterized in that a grinding assembly is provided in the whole machine, and a fixed mounting plate is provided above the grinding assembly; a feeding cylinder is provided on the fixed mounting plate corresponding to the feeding cylinder of the bean box, and the feeding cylinder is conductively connected to the grinding chamber of the grinding assembly;

[0021] The feed cylinder is fixedly equipped with a second fixed magnet corresponding to the magnetic floating switch of the bean box assembly;

[0022] The feeding cylinder is sleeved or docked with the guiding cylinder, and the magnetic floating switch is lifted by the repulsive force between the second fixed magnet and the moving magnet of the bottom bean box, which automatically opens the feeding port.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The coffee bean feeding and storage device of the present invention includes a bean box assembly formed by stacking multiple bean boxes. A magnetic floating switch containing a movable magnet is provided at the bottom of each bean box for automatic sealing of the feeding port. Fixed magnets are provided in the bean box housing and on the entire machine. The upper end of the fixed magnet and the lower end of the movable magnet have the same magnetic properties but repel each other. When the bean box assembly is placed on the entire machine, the movable magnet of the upper magnetic floating switch is lifted by the fixed magnet on the lower bean box / machine through repulsion, thereby opening the feeding port to achieve automatic bean feeding. When the bean box assembly is lifted, the repulsive force disappears, and the movable magnet falls to automatically seal the feeding port. The present invention achieves the following through the above structure:

[0025] (1) The overall structure is simple and the design is ingenious. It is convenient to stack multiple bean boxes on top of each other to expand the capacity as needed. The individual bean boxes are small in size and easy to take out, making the operation more flexible and convenient.

[0026] (2) The bean box can be installed or disassembled by simply lifting or putting it down. No special mechanical disassembly is required. The installation and disassembly are very convenient, allowing the bean box to be picked up or put down at any time. This makes it easy to take out coffee beans for coffee bean addition and also makes it easy to pour out the remaining coffee beans for recycling, thus avoiding coffee bean waste.

[0027] (3) When taking out the bean box, simply lift the bean box. The moving magnet of the magnetic floating switch at the bottom of the bean box will fall under the action of gravity, automatically sealing the main discharge port. There is no need to manually install the sealing baffle, making the operation more convenient and efficient.

[0028] (4) When multiple bean boxes are stacked on top of each other to form a bean box assembly, the first fixed magnet at the top and the first fixed magnet at the bottom are placed alternately to prevent the magnets from being too close together in the vertical direction and the magnetic forces from interfering with each other, thus affecting the working reliability of the magnetic floating switch.

[0029] (5) Coffee beans are consumed from top to bottom. During the operation of the coffee machine, coffee beans can be added by lifting the upper bean box, which can achieve continuous bean replenishment without stopping the machine and significantly improve the working efficiency of the whole machine. Attached Figure Description

[0030] Figure 1 is a schematic diagram of the overall structure of the coffee machine according to an embodiment of the present invention;

[0031] Figure 2 is a schematic diagram of the bean storage device and grinding assembly after installation according to an embodiment of the present invention;

[0032] Figure 3 is a schematic diagram of the separation structure of the bean storage device and the grinding component in an embodiment of the present invention;

[0033] Figure 4 is an exploded structural diagram of a single bean box and grinding component assembled according to an embodiment of the present invention.

[0034] Figure 5 is an exploded structural diagram of a single bean box according to an embodiment of the present invention;

[0035] Figure 6 is a cross-sectional view of a single bean box according to an embodiment of the present invention;

[0036] Figure 7 is a schematic diagram of the working principle of the bean storage device according to an embodiment of the present invention;

[0037] Explanation of markings in the diagram:

[0038] 1-Main machine; 2-Bean box; 3-Magnetic floating switch; 4-Second fixed magnet; 5-Feed cylinder; 6-Fixed mounting plate; 7-Grinding assembly; 8-Positioning sleeve; 9-Support platform;

[0039] 2.1-Top cover; 2.1.1-Handle;

[0040] 2.2-Frame; 2.2.1-Guide plate; 2.2.2-First fixed magnet; 2.2.3-Magnet support plate;

[0041] 2.3-Base; 2.3.1-Guide cylinder; 2.3.2-Guide port; 2.3.3-Supporting ribs; 2.3.4-Supporting positioning post; 2.3.5-Clamping protrusion; 2.3.6-Hopper side plate; 2.3.7-Discharge port;

[0042] 3.1-Magnetic mounting base; 3.1.1-Second positioning post; 3.3.1-Slot;

[0043] 3.2-Moving magnet;

[0044] 3.3 - Magnetic bottom cover;

[0045] 5.1-First positioning post; 5.2-Sleeve base; 5.3-Spoke plate. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," 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 invention 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 limiting this invention.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] As shown in Figure 1, this embodiment of the invention provides a multi-layer coffee bean storage device with automatic dispensing capability, and a coffee machine using the multi-layer coffee bean storage device. The storage device is placed on the main body 1 of the coffee machine to provide coffee beans for coffee preparation.

[0050] The bean storage device includes a bean box assembly composed of multiple bean boxes 2 stacked on top of each other, as shown in Figures 4-6. The bean box includes a basket body 2.2 and a base 2.3 located at the bottom of the basket body 2.2. A hopper is provided at the bottom of the base 2.3, and a guide cylinder 2.3.1 is provided at the bottom of the hopper. The guide cylinder 2.3.1 has guide ports 2.3.2 hollowed out around its perimeter inside the hopper (see Figure 4). A magnetic floating switch 3 is provided at the bottom of the guide cylinder 2.3.1. The magnetic floating switch 3 includes a movable magnet 3.2 and a magnet cover 3.3. The bottom of the guide cylinder 2.3.1 is fastened to the lower cover of the magnet 3.3; the bottom opening of the guide cylinder 2.3.1 serves as a discharge port 2.3.7 (see Figure 5), and the lower cover of the magnet 3.3 has a perforation that passes through the discharge port 2.3.7 for material discharge; the bottom of the guide cylinder 2.3.1 and the interior of the lower cover of the magnet 3.3 form a receiving cavity; a movable magnet 3.2 is floatingly disposed in the receiving cavity, and the movable magnet 3.2 is adapted to the discharge port 2.3.7 and automatically seals the discharge port 2.3.7 under the action of gravity.

[0051] A first fixed magnet 2.2.2 is fixedly installed on the side of the frame 2.2 above the hopper and away from the magnetic floating switch 3, and a second fixed magnet 4 is fixedly installed on the whole machine 1; the upper ends of the first fixed magnet 2.2.2 and the second fixed magnet 4 have the same magnetism and repel each other with magnetic force as the lower end of the moving magnet 3.2.

[0052] When multiple bean containers 2 are stacked on top of each other and placed on the machine 1, the upper and lower bean containers are staggered. Specifically, the first fixed magnet 2.2.2 of the lower bean container faces directly below the moving magnet 3.2 of the magnetic float switch 3 of the upper bean container, and the second fixed magnet 4 of the machine 1 faces directly below the moving magnet 3.2 of the magnetic float switch 3 of the lower bean container. The first fixed magnet 2.2.2 and the moving magnet 3.2, and the second fixed magnet 4 and the moving magnet 3.2, repel each other. The moving magnet 3.2 is lifted by the repulsive force, opening the feed inlet 2.3.7, allowing coffee beans to fall through. When a bean container 2 or bean container assembly is lifted, the repulsive force between the magnets disappears, and the moving magnet 3.2 falls due to gravity, automatically sealing the feed inlet 2.3.7. This process allows for free removal of the bean containers 2 without worrying about bean leakage, and eliminates the need to unlock the machine, making disassembly convenient and efficient.

[0053] When the above-mentioned multiple bean boxes 2 are stacked one on top of the other to form a bean box assembly, the upper first fixed magnet 2.2.2 and the lower first fixed magnet 2.2.2 are placed alternately. The purpose is to prevent the magnets from being too close together in the vertical direction and interfering with each other's magnetic forces, which would affect the working reliability of the magnetic floating switch.

[0054] Meanwhile, the number of bean hoppers in the bean hopper assembly installed on top of the main machine 1 can be selected as needed, allowing for expansion as required. The uppermost bean hopper 2 has a lid 2.1 that snaps onto its upper end, sealing the frame 2.2 to prevent coffee beans from spilling out during operation and also to isolate it from the external environment, ensuring the coffee beans inside the frame 2.2 remain dry and hygienic. A handle 2.1.1 is provided on one side of the lid 2.1 for easy opening to load beans or to empty and recycle any remaining beans.

[0055] The above structural design allows for easy access to and from the bean hoppers, and multiple bean hoppers can be stacked vertically, with coffee beans consumed from top to bottom (see Figure 7). The capacity can be increased or decreased during the operation of the coffee machine. For example, when coffee beans need to be added, the upper bean hopper can be lifted to add coffee beans, enabling continuous bean supply without stopping the machine and significantly improving the overall working efficiency. On the other hand, it also makes it easy to disassemble the bean hopper or bean hopper assembly at any time, pour out the remaining coffee beans for recycling, and avoid coffee bean waste.

[0056] Specifically, as shown in Figure 6, a first fixed magnet 2.2.2 is fixedly installed on the side of the frame 2.2 above the hopper and away from the magnetic floating switch 3. The first fixed magnet 2.2.2 is specifically fixedly connected to the bottom of the frame 2.2 through a magnet support plate 2.2.3.

[0057] Referring to Figures 2-4, the complete machine 1 is equipped with a grinding assembly 7, and a fixed mounting plate 6 is provided above the grinding assembly 7. The bean box assembly is mounted on the fixed mounting plate 6. A feeding cylinder 5 is provided on the fixed mounting plate 6 corresponding to the guide cylinder 2.3.1 of the bean box 2. The feeding cylinder 5 is conductively connected to the grinding chamber of the grinding assembly 7. A second fixed magnet 4 is fixedly provided in the feeding cylinder 5 corresponding to the magnetic floating switch 3 of the bean box assembly. Specifically, the second fixed magnet 4 is fixedly sleeved (interference fit) on the first positioning post 5.1. The first positioning post 5.1 is fixedly connected to the inner wall of the feeding cylinder 5 through the sleeve base 5.2 and the spoke plate 5.3 (see Figure 4). The feeding cylinder 5 is sleeved or connected to the guide cylinder 2.3.1, and the repulsive force between the second fixed magnet 4 and the moving magnet 3.2 of the lowest bean box 2 is used to lift the starting magnet 3.2, open the feeding port 2.3.7, and realize the feeding of beans into the grinding chamber.

[0058] Referring to Figures 4-5, the frame 2.2 of the bean box 2 is fastened to the base 2.3. The hopper of the base 2.3 protrudes downward near the bottom, and a supporting rib 2.3.3 is provided on the other side of the bottom of the base 2.3 to balance and support the bean box 2. A support platform 9 is provided on the upper end of the whole machine 1, located on one side of the fixed mounting plate 6, to support the supporting rib 2.3.3 (see Figure 2-3).

[0059] Meanwhile, referring to Figure 6, a guide plate 2.2.1 is provided on the side of the frame 2.2 away from the guide cylinder 2.3.1. The guide plate 2.2.1 is inclined to facilitate the guiding of material to the hopper of the base 2.3 and the guide cylinder 2.3.1. At the same time, the guide plate 2.2.1 is connected vertically to the hopper side plate 2.3.6 of the hopper on the same side to facilitate the receiving of falling material. It can be understood that the connection here can be a coplanar connection, such as a coplanar or coarse arc surface connection, or a vertically staggered connection. When the vertically staggered connection is used, it must be ensured that the bottom opening of the upper frame 2.2 is smaller than the opening of the lower hopper.

[0060] At the bottom of the hopper, around the guide cylinder 2.3.1, there is a support positioning column 2.3.4. A positioning sleeve 8 is correspondingly provided on the fixed mounting plate 6 above the grinding assembly 7 (see Figure 4). The support positioning column 2.3.4 and the positioning sleeve 8 are detachably sleeved, so that the guide cylinder 2.3.1 is sleeved or docked with the feed cylinder 5, thereby realizing the positioning and installation of the bean box assembly on the whole machine 1.

[0061] Meanwhile, due to the large amount of coffee beans gathered in and around the hopper, the weight of this area is relatively heavy. In addition to positioning and installing the bean box assembly, the support positioning column 2.3.4 can also play a role in supporting the hopper to prevent it from being crushed or deformed.

[0062] The upper part of the guide cylinder 2.3.1 protrudes upward from the bottom of the hopper. The upper part of the guide cylinder 2.3.1 has a guide port 2.3.2 with openwork around its perimeter (see Figure 4). The lower part of the guide cylinder 2.3.1 extends out from the bottom of the hopper and is fastened to the lower cover of the magnet 3.3. Specifically, the bottom of the lower part of the guide cylinder 2.3.1 is provided with a locking protrusion 2.3.5 (see Figure 5), and the lower cover of the magnet 3.3 is provided with a locking groove 3.3.1. The lower part of the guide cylinder 2.3.1 and the lower cover of the magnet 3.3 are fastened together by the locking protrusion 2.3.5 and the locking groove 3.3.1.

[0063] In this embodiment of the invention, the upper end of the guide cylinder 2.3.1 is provided with an end face, and the end face is a conical surface.

[0064] The purpose of this design is as follows: If the upper end of the feed tube 2.3.1 is a through hole, the coffee beans will directly contact the moving magnet 3.2 in the feed tube 2.3.1. This would mean that when the moving magnet 3.2 is opened by repulsion, it needs to overcome not only its own weight but also the weight of the coffee beans above it, making the opening unreliable. Therefore, the upper end of the feed tube 2.3.1 is provided with an end face, which can isolate the upper end face of the moving magnet from the coffee beans, making the opening reliable and unaffected by the weight of the coffee beans. At the same time, the end face of the upper end of the feed tube 2.3.1 is a conical surface, which can prevent coffee beans from being trapped and ensure that the coffee beans fall completely.

[0065] Furthermore, in this embodiment of the invention, the magnetic floating switch 3 further includes a magnetic fixing seat 3.1, the upper end surface of which is a conical surface, and a second positioning post 3.1.1 is provided at the bottom; the movable magnet 3.2 is fixedly sleeved on the second positioning post 3.1.1 by interference fit (see Figures 5-7), and the movable magnet 3.2 and the magnetic fixing seat 3.1 float up and down together in the accommodating cavity between the guide cylinder 2.3.1 and the lower cover of the magnet 3.3.

[0066] The magnet holder 3.1 serves as a positioning guide, preventing the movable magnet 3.2 from deflecting under repulsive force and affecting the reliability of the discharge port 2.3.7 when it opens. Simultaneously, it increases the gravity (equivalent to a counterweight) of the movable magnet 3.2 as it falls, allowing it to fall more effectively when the repulsive force disappears, thus quickly achieving automatic sealing of the discharge port. Furthermore, the upper surface of the magnet holder 3.1 is a conical surface, preventing coffee beans entering from the guide port 2.3. from remaining on the upper surface of the magnet holder 3.1, resulting in cleaner and more thorough discharging.

[0067] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-layer coffee bean storage device with automatic dispensing capability, used for placing on the main body of a coffee machine for bean supply, characterized in that, The system includes a bean box assembly composed of multiple bean boxes stacked on top of each other. Each bean box includes a frame and a guide cylinder located at the bottom of the frame. The guide cylinder has a guide port with openwork around its perimeter and a magnetic floating switch at its bottom. The magnetic floating switch includes a movable magnet and a lower magnetic cover. The bottom of the guide cylinder is fastened to the lower magnetic cover. The bottom opening of the guide cylinder serves as a discharge port, and the lower magnetic cover has an openwork through the discharge port for discharging material. A movable magnet is floatingly disposed in the cavity between the bottom of the guide cylinder and the lower magnetic cover. The movable magnet is adapted to the discharge port and automatically seals the discharge port under gravity. A first fixed magnet is fixedly disposed within the frame. The machine is equipped with a second fixed magnet. The upper ends of the first and second fixed magnets are magnetically identical to the lower ends of the movable magnet, but they repel each other. When the bean box assembly is placed on the machine or when multiple bean boxes are stacked, the lower first / second fixed magnet faces the upper movable magnet, and the movable magnet is pushed up by the repulsive force to open the feeding port. When the bean box or bean box assembly is picked up, the repulsive force between the magnets disappears, and the movable magnet falls due to gravity, automatically sealing the feeding port. The first fixed magnet is fixedly installed in the frame on the side away from the magnet floating switch. When multiple bean boxes are stacked to form a bean box assembly, the upper and lower first fixed magnets are staggered.

2. The bean storage device according to claim 1, characterized in that, The upper end of the feed cylinder is provided with an end face, which is a conical surface.

3. The bean storage device according to claim 2, characterized in that, The magnetic floating switch also includes a magnetic fixing base; a second positioning post is provided at the bottom of the magnetic fixing base; the second positioning post is fixedly sleeved on the movable magnet, and the movable magnet and the magnetic fixing base float up and down in the accommodating cavity between the guide cylinder and the lower cover of the magnet.

4. The bean storage device according to claim 3, characterized in that, The upper surface of the magnet holder is a conical surface.

5. The bean storage device according to any one of claims 1-4, characterized in that, The frame is provided with a base at the bottom, and a hopper is provided on one side of the bottom of the base. The guide cylinder is provided at the bottom of the hopper.

6. The bean storage device according to claim 5, characterized in that, The bottom of the base is provided with a support rib on the side away from the hopper, and the whole machine is provided with a support platform to support the support rib.

7. The bean storage device according to claim 5, characterized in that, A guide plate is provided on the side of the frame away from the guide cylinder. The guide plate is inclined and connects to the hopper side plate of the hopper on the same side.

8. The bean storage device according to claim 5, characterized in that, The bottom of the hopper and around the guide cylinder are each provided with a support positioning post, which is used to detachably connect with the corresponding positioning sleeve on the whole machine.

9. A coffee machine, comprising a complete machine and a bean storage device as described in any one of claims 1-8, characterized in that, The machine includes a grinding assembly, with a fixed mounting plate on top. A feeding cylinder is mounted on the fixed mounting plate corresponding to the guide cylinder of the bean box, and the feeding cylinder is connected to the grinding chamber of the grinding assembly. A second fixed magnet is fixedly mounted in the feeding cylinder corresponding to the magnetic floating switch of the bean box assembly. The feeding cylinder is sleeved or docked with the guide cylinder, and the magnetic floating switch is lifted by the repulsive force between the second fixed magnet and the moving magnet of the bottom bean box, automatically opening the feeding port.

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