Metering bean grinding assembly

Abstract

A metering bean grinding assembly, comprising a bean container and a grinding device. A top cover is provided at the upper end of the grinding device, and the bean container is placed on the top cover; a supporting plate is provided below the top cover, a weighing sensor and a plurality of positioning columns are provided on the supporting plate, the supporting plate is connected to the top cover by means of the weighing sensor, and the plurality of positioning columns pass through the top cover to be connected to the bean container in a matching manner. According to the metering bean grinding assembly, the supporting plate is suspended below the top cover via the weighing sensor, and the supporting plate supports the bean container by means of the positioning columns, so that the weighing sensor bears the weight of the bean container and senses the weight change, and therefore, a user can obtain the desired weight of coffee powder. A bean feeding assembly is controlled by means of the weighing sensor to operate, and a grinding assembly is controlled to operate, so that there is no residue in the grinding assembly, and usage is more convenient.

Description

A metering bean grinding component Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a bean metering and grinding component. Background Art

[0002] Traditional pour-over coffee involves weighing a specific amount of coffee beans on an electronic scale and then grinding them into ground coffee using a grinder, a rather cumbersome process. Currently, grinders and coffee machines on the market typically use a timer to control the amount of ground coffee. This means the amount of ground coffee is controlled based on the grinding efficiency of the beans and the set time.

[0003] Chinese patent CN219249851U discloses an all-in-one coffee brewing machine with a scale, including a base, an electric kettle, a weighing module, a grinding module, a bean pod, a filter cup with filter paper, and a coffee cup; wherein the electric kettle, weighing module, and grinding module are all mounted on the base; the filter cup and coffee cup are both detachably placed on the weighing module, and the filter cup is located directly above the coffee cup; the bean pod is mounted on the top of the grinding module; the grinding module has a powder outlet on the side facing the filter cup, the height of the powder outlet is higher than the height of the filter cup, and the powder outlet is equipped with a blocking and conveying door. After the weighing module obtains the set amount of coffee powder, the grinding module stops working. There are residues of coffee beans and coffee powder in the passage between the bean pod and the grinding module, as well as inside the grinding module. These residual coffee beans / powder are easily affected by moisture and deteriorate, affecting the next brewing, and are also troublesome to clean. Therefore, the existing technology needs to be improved and developed. Technical Solutions

[0004] The purpose of the utility model is to address the defects and shortcomings of the existing technology and provide a metering bean grinding assembly with a reasonable structure, controllable ground powder weight, no residue after grinding, and easy use.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] The present invention discloses a metering and grinding assembly comprising a bean box and a grinding device. The grinding device is provided with a top cover at its upper end, on which the bean box is placed. A support plate is provided below the top cover, on which a load cell and a plurality of positioning posts are mounted. The support plate is connected to the top cover via the load cell, and the positioning posts extend through the top cover and engage with the bean box. The top cover serves as the upper end cover of the grinder / coffee machine. The support plate is suspended below the top cover via the load cell and is positioned within the grinder / coffee machine together with the grinding device. The top cover is provided with an opening communicating with the bean box, so that coffee beans in the bean box can fall through the opening in the top cover into the grinding device for grinding. Furthermore, the support plate is connected to the bottom of the bean box via the positioning posts, which support the bean box. It is understood that the load cell bears the weight of the support plate, the positioning posts, and the bean box. Based on the increase or decrease in coffee beans in the bean box, the load cell determines the weight of the coffee beans entering the grinding device, thereby controlling the amount of coffee beans entering the grinding device. Furthermore, the grinding device can grind all incoming coffee beans into powder, thereby avoiding coffee beans / powder residue in the grinding device while obtaining the coffee powder weight desired by the user.

[0007] According to the above solution, the bean box's bottom plate is provided with several countersunk holes, and the upper ends of several positioning posts are inserted into corresponding countersunk holes, thereby connecting the bean box to the support plate. The bean box is placed flat on the top cover, and the positioning posts are inserted into the corresponding countersunk holes, ensuring the bean box's accurate installation position and preventing relative displacement and rotation between the bean box and the top cover. It will be understood that the upper ends of the positioning posts are inserted into the countersunk holes, thereby contacting the bean box, and the weight of the bean box is transmitted to the load cell via the positioning posts and the support plate.

[0008] According to the above solution, a bean feeding assembly is provided on the bottom plate of the bean hopper, and a driver is provided on the support plate, with the driver and the bean feeding assembly being transmission-connected. As described above, the coffee beans in the bean hopper can enter the grinding device through the opening in the top cover. To simplify the description, let the weight change value of the coffee beans in the bean hopper be M. When the weight change sensed by the load cell reaches M, a signal is sent to the controller of the grinder / coffee machine, which shuts down the driver, halting the operation of the bean feeding assembly. The grinding device can continue to grind all the coffee beans, preventing any residual coffee beans or grounds.

[0009] According to the above solution, the driver is provided with an output interface, and the top cover is provided with a first through-hole. The output interface is rotatably inserted into the first through-hole. The bottom plate is provided with an input terminal, which is inserted into the first through-hole and mated with the output interface, thereby enabling the driver to drive the bean feeding assembly. The driver utilizes a motor, the main shaft of which is connected to the output interface. The input terminal is mounted on the bottom plate via a bearing. The upper end of the input terminal is in driving connection with the bean feeding assembly, and the lower end of the input terminal is adapted to transmit power to the output interface. When the bean container is placed on the top cover, the lower end of the input terminal is inserted into the first through-hole, thereby connecting to the output interface. The driver drives the bean feeding assembly to gradually discharge the coffee beans in the bean container to the grinding device. When the weight change of the coffee beans in the bean container reaches a value M, the driver stops.

[0010] According to the above solution, the top cover is provided with a plurality of second through-holes, equiangularly spaced around the first through-hole. A plurality of positioning posts are disposed in corresponding fashion through the second through-holes. The second through-holes allow the positioning posts to pass through the top cover, thereby supporting the bean container and transferring its weight to the support plate. The diameter of the second through-holes is larger than that of the positioning posts. Furthermore, the positioning posts and second through-holes are disposed around the first through-hole, with the input terminal concentrically disposed with the first through-hole. The driver can rotate the input terminal via the output interface. The countersunk holes are paired with corresponding second through-holes. When the positioning posts and countersunk holes are coupled, they prevent the bean container from rotating or shifting when torque is transmitted between the driver and the bean feeding assembly.

[0011] According to the above solution, the bean feeding assembly includes a paddle. A bean feeding chamber and a bean outlet are provided on the bottom plate, and the bean feeding chamber is connected to the inner cavity of the bean container. A passage is provided between the bean feeding chamber and the bean outlet. The paddle is rotatably disposed within the bean feeding chamber, and the input terminal is fixedly connected to the paddle. The paddle has multiple blades, and coffee beans in the bean container can fall between the blades of the paddle. The paddle rotates within the bean feeding chamber, squeezing and pushing the coffee beans through the passage and into the bean outlet. It is understood that the top cover has an opening that matches the bean outlet, allowing coffee beans that fall from the outlet to fall into the grinding device.

[0012] According to the above solution, a flexible door stop is provided between the bean feeding chamber and the bean outlet. One end of the flexible door stop is fixedly connected to the bottom plate, allowing the flexible door stop to be movably mounted on the passage opening. When the paddle rotates, the coffee beans in the bean box are squeezed and pushed toward the passage opening by the tangential force of the blade. The flexible door stop preferably generates a resistance of approximately 5g, which the paddle pushes to overcome and allow the coffee beans to fall through the passage opening and the bean outlet into the grinding assembly. Beneficial effects

[0013] The utility model provides a metering bean grinding assembly. A weighing sensor suspends a support plate below a top cover. The support plate supports the bean box through positioning columns, so that the weighing sensor bears the weight of the bean box and senses weight changes, thereby allowing the user to obtain a desired weight of coffee powder. The weighing sensor controls the movement of the bean feeding assembly and the movement of the grinding assembly, so that there is no residue in the grinding assembly, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a partial cross-sectional schematic diagram of the utility model as a whole;

[0015] Figure 2 is a schematic diagram of the disassembled structure of the bean box and the support plate of the present invention;

[0016] Figure 3 is a schematic diagram of the surface structure of the top cover of the present invention;

[0017] Figure 4 is a schematic diagram of the bean box bottom structure of the present invention;

[0018] FIG5 is a schematic structural diagram of the bean feeding assembly of the present invention.

[0019] In the picture:

[0020] 1. Bean box; 2. Grinding device; 3. Support plate; 11. Countersunk hole; 12. Bottom plate; 13. Input terminal; 14. Paddle; 15. Bean feeding chamber; 16. Bean outlet; 17. Passageway; 18. Flexible door stop; 21. Top cover; 22. First through hole; 23. Second through hole; 24. Opening; 31. Weighing sensor; 32. Positioning column; 33. Driver; 34. Output interface. Best Mode for Carrying Out the Invention

[0021] The technical solution of the present utility model is described below with reference to the accompanying drawings and embodiments.

[0022] As shown in Figures 1-5, a metering bean grinding assembly described in the present invention includes a bean box 1 and a grinding device 2. The upper end of the grinding device 2 is provided with a top cover 21, and the bean box 1 is placed on the top cover 21; a support plate 3 is provided below the top cover 21, and a weighing sensor 31 and a plurality of positioning posts 32 are provided on the support plate 3. The support plate 3 is connected to the top cover 21 through the weighing sensor 31, and the plurality of positioning posts 32 pass through the top cover 21 and are connected to the bean box 1; the top cover 21 is the upper end sealing plate of the bean grinder / coffee machine, and the support plate 3 is suspended below the top cover 21 through the weighing sensor 31, and is arranged inside the bean grinder / coffee machine together with the grinding device 2. An opening is provided on the top cover 21 to communicate with the bean box 1, and the coffee beans in the bean box 1 can fall into the grinding device 2 from the opening on the top cover 21 for grinding. Furthermore, the support plate 3 is connected to the bottom of the bean box 1 via a number of positioning posts 32, which support the bean box 1. It is understood that the load cell 31 bears the weight of the support plate 3, the positioning posts 32, and the bean box 1. Based on the increase or decrease in coffee beans in the bean box 1, the load cell 31 determines the weight of the coffee beans entering the grinding device 2, thereby controlling the amount of coffee beans entering the grinding device 2. Furthermore, the grinding device 2 can grind all incoming coffee beans into powder, while achieving the user's desired weight of coffee powder and preventing any coffee beans / ground residue from remaining in the grinding device 2.

[0023] The bottom plate 12 of the bean box 1 is provided with several countersunk holes 11. The upper ends of several positioning posts 32 are inserted into corresponding countersunk holes 11, thereby connecting the bean box 1 to the support plate 3. The bean box 1 is placed flat on the top cover 21, and the positioning posts 32 are inserted into the corresponding countersunk holes 11, ensuring the accurate installation position of the bean box 1 and preventing relative displacement and rotation of the bean box 1 and the top cover 21. It can be understood that the upper ends of the positioning posts 32 are inserted into the countersunk holes 11, thereby contacting the bean box 1. The weight of the bean box 1 is transmitted to the load cell 31 via the positioning posts 32 and the support plate 3.

[0024] The bean hopper 1 has a bean feeding assembly mounted on its bottom plate 12, and a driver 33 mounted on its support plate 3. Driver 33 is in transmission connection with the bean feeding assembly. As previously described, the coffee beans in the bean hopper 1 can enter the grinding device 2 through the opening in the top cover 21. For simplicity, let the weight change of the coffee beans in the bean hopper 1 be M. When the weight change sensed by the load cell 31 reaches M, it sends a signal to the controller of the grinder / coffee machine, which shuts down driver 33, halting the bean feeding assembly. The grinding device 2 can continue to grind all the coffee beans, preventing any residual coffee beans or grounds.

[0025] The driver 33 is provided with an output interface 34. The top cover 21 is provided with a first through-hole 22, and the output interface 34 is rotatably inserted into the first through-hole 22. The bottom plate 12 is provided with an input terminal 13, which is inserted into the first through-hole 22 and mated with the output interface 34, thereby enabling the driver 33 to drive the bean feeding assembly. The driver 33 utilizes a motor, the main shaft of which is connected to the output interface 34. The input terminal 13 is mounted on the bottom plate 12 via a bearing. The upper end of the input terminal 13 is in driving connection with the bean feeding assembly, while the lower end of the input terminal 13 mates with the output interface 34 to transmit power. When the bean container 1 is placed on the top cover 21, the lower end of the input terminal 13 is inserted into the first through-hole 22, thereby connecting to the output interface 34. The driver 33 then drives the bean feeding assembly, gradually discharging the coffee beans in the bean container 1 to the grinding device 2. When the weight change of the coffee beans in the bean container 1 reaches a value M, the driver 33 ceases operation.

[0026] The top cover 21 is provided with a plurality of second through-holes 23, equiangularly spaced around the first through-hole 22. A plurality of positioning posts 32 are disposed in corresponding fashion through the second through-holes 23. The second through-holes 23 allow the positioning posts 32 to pass through the top cover 21, thereby supporting the bean container 1 and transferring its weight to the support plate 3. The diameter of the second through-holes 23 is larger than that of the positioning posts 32. Furthermore, the positioning posts 32 and second through-holes 23 are disposed around the first through-hole 22. The input terminal 13 is concentrically disposed with the first through-hole 22, and the driver 33 is capable of rotating the input terminal 13 via the output interface 34. Several countersunk holes 11 are paired with corresponding second through-holes 23. When coupled, the positioning posts 32 and countersunk holes 11 prevent rotation and displacement of the bean container 1 when torque is transmitted between the driver 33 and the bean feeding assembly.

[0027] The bean feeding assembly includes a paddle 14. A bean feeding chamber 15 and a bean outlet 16 are provided on the bottom plate 12. The bean feeding chamber 15 is connected to the inner cavity of the bean container 1. A passage 17 is provided between the bean feeding chamber 15 and the bean outlet 16. The paddle 14 is rotatably disposed within the bean feeding chamber 15, and the input terminal 13 is fixedly connected to the paddle 14. The paddle 14 has multiple blades, and coffee beans in the bean container 1 can fall between the blades of the paddle 14. The paddle 14 rotates within the bean feeding chamber 15, squeezing and pushing the coffee beans through the passage 17 and into the bean outlet 16. It will be appreciated that the top cover 21 has an opening 24 that matches the bean outlet 16, allowing coffee beans that fall from the bean outlet 16 to fall into the grinding device 2.

[0028] A flexible door stop 18 is provided between the bean feeding chamber 15 and the bean outlet 16. One end of the flexible door stop 18 is fixedly connected to the bottom plate 12, allowing the flexible door stop 18 to be movably mounted on the passage opening 17. When the paddle 14 rotates, the coffee beans in the bean box 1 are squeezed and pushed toward the passage opening 17 by the tangential force of the blade. Preferably, the flexible door stop 18 generates a resistance of approximately 5g. The paddle 14 pushes the coffee beans, which overcome this resistance and fall through the passage opening 17 and the bean outlet 16 into the grinding assembly.

[0029] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A bean metering and grinding assembly, comprising a bean box and a grinding device, characterized in that: The upper end of the grinding device is provided with a top cover, and the bean box is placed on the top cover; A support plate is provided below the top cover, on which a weighing sensor and a plurality of positioning columns are provided. The support plate is connected to the top cover via the weighing sensor, and the plurality of positioning columns pass through the top cover and are cooperatively connected to the bean box.

2. The bean-measuring and grinding assembly according to claim 1, characterized in that: The bottom plate of the bean box is provided with a plurality of countersunk holes, and the upper ends of a plurality of positioning columns are plugged into the corresponding countersunk holes so that the bean box is matched and connected with the supporting plate.

3. The bean-measuring and grinding assembly according to claim 1, characterized in that: A bean feeding assembly is provided on the bottom plate of the bean box, a driver is provided on the supporting plate, and the driver is transmission-connected to the bean feeding assembly.

4. The bean-measuring and grinding assembly according to claim 3, characterized in that: The driver is provided with an output interface, and the top cover is provided with a first through hole. The output interface is rotatably inserted into the first through hole. The bottom plate is provided with an input terminal. The input terminal is inserted into the first through hole and matched with the output interface to enable the driver to drive the bean feeding assembly.

5. The bean-measuring and grinding assembly according to claim 3, characterized in that: The top cover is provided with a plurality of second through holes, which are arranged around the first through hole at equal angular intervals, and the plurality of positioning posts are passed through the plurality of second through holes in a one-to-one correspondence.

6. The bean-measuring and grinding assembly according to claim 3, characterized in that: The bean feeding assembly includes a paddle. A bean feeding chamber and a bean outlet are provided on the bottom plate. The bean feeding chamber is connected to the inner cavity of the bean box. A passage is provided between the bean feeding chamber and the bean outlet. The paddle is rotatably provided in the bean feeding chamber. The input terminal is fixedly connected to the paddle.

7. The bean-measuring and grinding assembly according to claim 6, characterized in that: A flexible door stop is provided between the bean feeding chamber and the bean outlet, and one end of the flexible door stop is fixedly connected to the bottom plate, so that the flexible door stop can be movably arranged on the passage opening.

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