Coffee bean grinding method and bean grinder

Abstract

The embodiment of the invention relates to a bean grinder, in particular to a coffee bean grinding method and a bean grinder, and the grinding method comprises the following steps: calling corresponding grinding parameters according to a currently received bean grinding instruction; and according to the currently called grinding parameters, grinding the coffee beans currently put into the bean grinder, so that the particle size of the ground coffee obtained after the coffee beans are ground reaches a target range. Compared with the prior art, the method has the advantages that the learning cost of manually grinding coffee by a user can be effectively reduced, different users can grind coffee powder with moderate particle size through the bean grinder in a short time, the phenomenon of excessive extraction or insufficient extraction of the coffee powder in the extraction process is effectively avoided, and the stability of coffee flavor is guaranteed.

Description

Technical Field

[0001] Some embodiments of the present invention relate to a coffee grinder, and specifically design a method for grinding coffee beans and a coffee grinder. Background Technology

[0002] Portable coffee grinders, as a type of portable device that can directly grind coffee beans, are small in size and easy to carry, allowing users to enjoy freshly ground coffee anytime, anywhere.

[0003] Furthermore, freshly grinding coffee beans is a crucial step in enhancing coffee flavor. The uniformity of coffee powder particle size during grinding directly affects extraction efficiency and the final taste. However, traditional grinders typically use fixed grinding parameters, such as grind size. Of course, to meet the different taste preferences of various users, some grinders offer adjustable grind sizes, but these generally require manual adjustment by the user based on the type and roast level of the coffee beans. Manual adjustment relies on experience and repeated adjustments to grind coffee powder with the appropriate particle size, thus avoiding under-extraction or over-extraction during the extraction process and ensuring the stability of the coffee flavor. However, this operating method has a high learning curve and difficulty for novice users. Summary of the Invention

[0004] The purpose of this invention is to design a coffee bean grinding method and a coffee grinder, which can effectively reduce the learning cost for users when grinding coffee, and enable different users to grind coffee powder with a suitable particle size in a short time to ensure the stability of coffee flavor.

[0005] To achieve the above objectives, some embodiments of the present invention provide a method for grinding coffee beans, the grinding method comprising the following steps: Based on the currently received grinding command, the corresponding grinding parameters are invoked; The coffee beans currently fed into the grinder are ground according to the grinding parameters currently invoked, so that the particle size of the coffee powder obtained after grinding the coffee beans reaches the target range.

[0006] In addition, some embodiments of the present invention provide a coffee grinder, comprising: Coffee bean hopper, used for storing coffee beans; A coffee grinding device is used to grind coffee beans that are fed into the bean hopper; A powder cup is used to collect coffee powder discharged by the grinding device during the grinding of coffee beans; The storage module pre-stores at least one grinding parameter for grinding coffee beans by the grinding device; The main control module is communicatively connected to both the grinding device and the storage module. The main control module is used to receive grinding instructions and retrieve corresponding grinding parameters from the storage module according to the received grinding instructions. The main control module is also used to drive the grinding device according to the currently retrieved grinding parameters, so that the grinding device grinds the coffee beans and the particle size of the coffee powder obtained after grinding reaches the target range.

[0007] Compared to the prior art, the embodiments of the present invention, because the coffee grinder can receive grinding instructions and call up the corresponding grinding parameters according to the received grinding instructions, and grind the coffee beans put into the grinder using the grinding parameters, can ensure that the particle size of the coffee powder obtained after grinding can reach the target range. Therefore, it can effectively reduce the learning cost for users when manually grinding coffee, and enable different users to grind coffee powder with a suitable particle size in a short time. It can effectively avoid the phenomenon of over-extraction or under-extraction of coffee powder during the extraction process, thereby ensuring the stability of coffee flavor. Attached Figure Description

[0008] Figure 1 This is a flowchart illustrating a first method for grinding coffee beans, as shown in some embodiments of the present invention. Figure 2 This is a flowchart illustrating a second method for grinding coffee beans in some embodiments of the present invention. Figure 3 This is a flowchart illustrating a third method for grinding coffee beans, as shown in some embodiments of the present invention. Figure 4 This is a flowchart illustrating the fourth method for grinding coffee beans in some embodiments of the present invention. Figure 5 This is a flowchart illustrating the fifth method for grinding coffee beans in some embodiments of the present invention; Figure 6 This is a schematic diagram of the isometric view of a coffee grinder in some embodiments of the present invention; Figure 7 This is an isometric view of the internal structure of a coffee grinder in some embodiments of the present invention; Figure 8 This is a schematic diagram of the axial side of the grinding device in some embodiments of the present invention; Figure 9 This is a cross-sectional schematic diagram of the bean grinding device in some embodiments of the present invention; Figure 10 This is a system module block diagram of a coffee grinder in some embodiments of the present invention. Detailed Implementation

[0009] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of the present invention to facilitate a better understanding of this application. However, the technical solutions claimed in this application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0010] Example 1 Embodiment 1 of the present invention relates to a method for grinding coffee beans, such as... Figure 1 As shown, the grinding method includes the following steps: Step 110: Based on the currently received grinding instruction, call the corresponding grinding parameters.

[0011] Step 120: Grind the coffee beans currently fed into the grinder according to the currently called grinding parameters, so that the particle size of the coffee powder obtained after grinding the coffee beans reaches the target range.

[0012] As can be seen from the above, because a coffee grinder can receive grinding instructions and call up the corresponding grinding parameters according to the received instructions, it grinds the coffee beans put into the grinder using these parameters. This ensures that the particle size of the ground coffee powder reaches the target range. Therefore, it can effectively reduce the learning cost for users who manually grind coffee beans. It allows different users to grind coffee powder with a suitable particle size in a short time, thus effectively avoiding over-extraction or under-extraction during the extraction process and ensuring the stability of the coffee flavor.

[0013] Specifically, in some embodiments, the aforementioned grinding instructions can be wireless instructions sent by a terminal device or local instructions generated by physical buttons or a touch panel on the grinder. Furthermore, each grinding instruction includes at least one of the following: coffee bean type information, coffee bean roasting information, coffee bean grind size information, and coffee powder target quality information. For example, to accommodate the operating habits of different users, in some embodiments, the grinder can establish a connection with wireless terminal devices such as mobile phones and tablets, allowing users to send wireless instructions to the grinder via a pre-installed app on the terminal device, thereby enabling remote operation of the grinder. Of course, in other embodiments, the grinder may also be equipped with corresponding physical buttons or a touch panel, allowing users to send local instructions to the grinder via physical buttons or a touch panel, thereby enabling local operation of the grinder. Furthermore, it is worth noting that the grinder's storage module can pre-store various grinding parameters, each corresponding to different types and / or different roast levels of coffee beans. Before sending a grinding command to the grinder, the user can set information such as the type and roast level of coffee beans on the terminal device or the grinder itself. After the user completes the setting of the coffee bean type and roast level, the grinding command sent to the grinder can include the above information. Thus, after receiving the grinding command, the grinder can extract the coffee bean type and / or roast information contained in the grinding command. Moreover, the grinder can also call the corresponding grinding parameters from the storage module based on the extracted type and / or roast information to grind the coffee beans currently put into the grinder.

[0014] For example, when a coffee grinder receives a grinding instruction that includes information about the grind size of the coffee beans, the grinding parameters corresponding to that instruction are the grind size information contained in the instruction. This allows the coffee grinder to directly use the grind size information in the instruction to grind the coffee beans currently in the grinder after receiving the instruction.

[0015] Furthermore, as a preferred embodiment, in some other embodiments, the grinding parameters corresponding to each grinding command are adjustable. That is, in some embodiments, each grinding parameter of the coffee grinder can be manually adjusted according to different users' flavor preferences when extracting coffee powder, thereby meeting the drinking needs of more users. For example, since the particle size of coffee powder and the grind size of the grinding device are generally related to the size of the grinding gap and the rotation speed of the moving blade when grinding coffee beans, the grinding parameters that users can manually adjust include: the grind size and the rotation speed of the moving blade when grinding coffee beans. By adjusting the grind size and blade rotation speed, the coffee grinder can meet the grinding requirements of different types and / or different roasting levels of coffee beans. Therefore, in some embodiments, when the coffee grinder calls the corresponding grinding parameters, the coffee grinder can control the rotation of the moving blade and / or the grinding gap of the grinding device in real time according to the currently called blade speed and / or grinding degree, so that the particle size of the coffee powder formed after the coffee beans are ground by the coffee grinder can reach the target range.

[0016] Additionally, it's worth mentioning that after the coffee beans are ground by the grinder, the resulting coffee powder falls directly into the grinder's powder container 3. The powder container 3 collects the coffee powder. Therefore, to ensure that the coffee powder collected in the powder container 3 meets the extraction requirements, after grinding the coffee beans currently in the grinder according to the currently selected grinding parameters, i.e., after step 120, as... Figure 2 As shown, the grinding method also includes the following steps: Step 130: Obtain the quality of coffee grounds in the coffee grinder's powder cup 3 in real time.

[0017] Step 140: Based on the quality of the obtained coffee powder, determine whether to continue grinding the coffee beans.

[0018] In step 150, if it is determined that grinding the coffee beans will no longer be continued, a shutdown operation is performed, and a first prompt message is generated and issued. If it is determined that grinding the coffee beans will continue, the process returns to step 120.

[0019] Specifically, in some embodiments, to ensure the taste of the coffee, the quality of the coffee powder during extraction is related to the volume of liquid used to extract the coffee powder, therefore, in combination with... Figure 9As shown, the coffee grinder's storage module 2 can also pre-store the target mass of coffee powder. Users can set or adjust this target mass in advance via the grinder's control panel, or remotely via mobile phones, computers, or other remote devices. Therefore, the target mass is an adjustable variable pre-stored in the grinder's storage module. For example, when the ratio of coffee powder to the liquid used for extraction is 1:15, if the user uses 225g of liquid for extraction each time, the mass of the coffee powder is 15g. Therefore, before grinding the coffee beans, the user can set the target mass of the coffee powder in storage module 2 to 15g. So, while the grinder is grinding the coffee beans according to the currently selected grinding parameters, it can also obtain the mass of the coffee powder in the powder cup 3 in real time and determine whether to continue grinding based on the obtained mass. For example, the current mass of coffee grounds can be compared with the target mass set in the grinder. If the current mass is less than the target mass, it means there is too little coffee grounds in the grinder cup 3, and the grinder can be instructed to continue grinding. Conversely, if the current mass is greater than or equal to the target mass, it means the mass of coffee grounds in the grinder cup 3 meets the requirements for later extraction, and the grinder can be instructed to stop, generating and issuing the first notification message to remind the user.

[0020] Furthermore, it should be noted that the first prompt message can be a light alarm, an audible alarm, or a combination of both. When the first prompt message is a light alarm, an LED light source, a light-emitting diode, or other light alarm unit can be installed on the coffee grinder to provide a light alarm. When the first prompt message is an audible alarm, a buzzer, a speaker, or other audible alarm unit can be installed on the coffee grinder to provide an audible alarm. Of course, in other embodiments, the first prompt message can also be text, code, and / or numerical information. To display this information, a display screen can be installed on the coffee grinder. Alternatively, in some embodiments, the first prompt message can be issued by a wireless terminal device such as a mobile phone or tablet computer on the user side. In this embodiment, the type and method of issuing the first prompt message are not specifically limited.

[0021] Furthermore, as can be seen from the above, the target quality of the coffee powder can be set by the user in advance on the grinder's control panel or via remote devices such as mobile phones and computers. Alternatively, the target quality can also be calculated based on the weight of the coffee beans added. For example, before each addition of beans, the user can weigh the coffee beans to be added and input the weight through the grinder's control panel or via a mobile phone or computer. Alternatively, a weighing module can be installed in the grinder's bean hopper to weigh the coffee beans added in real time. Once the grinder has obtained the weight of the added coffee beans, it can calculate the target quality of the coffee powder based on that weight. Therefore, it is clear that obtaining the target quality of the coffee powder in this way can further reduce the difficulty of operating a coffee grinder for novice users.

[0022] Furthermore, when the target quality is an adjustable variable pre-stored in the grinder's storage module, the amount of coffee powder output after grinding the coffee beans is necessarily less than or equal to the initial coffee bean mass. Therefore, when adding coffee beans to the grinder, the initial coffee bean mass should be greater than or equal to the adjustable variable. To further ensure the stability of the flavor during subsequent coffee extraction, as a preferred solution, in some other embodiments, after calling the corresponding grinding parameters according to the currently received grinding instruction (i.e., after step 110) and before grinding the coffee beans currently added to the grinder according to the currently called grinding parameters (i.e., before step 120), such as... Figure 3 As shown, the grinding method also includes the following steps: Step 111: Obtain the quality of coffee beans fed into the grinder in real time.

[0023] Step 112: Based on the current quality of the coffee beans fed, determine whether it is necessary to add more coffee beans to the grinder.

[0024] Step 113: If it is determined that additional coffee beans need to be added to the grinder, a second prompt message is generated and issued, and the process returns to step 111. If it is determined that no additional coffee beans need to be added to the grinder, then step 120 is executed, which involves grinding the coffee beans currently in the grinder according to the currently called grinding parameters.

[0025] From the above, it's clear that since the coffee bean input mass G1 should be greater than or equal to the adjustable variable G2 of the coffee powder currently set in the grinder (i.e., input mass G1 ≥ adjustable variable G2), before grinding the coffee beans currently in the grinder according to the currently selected grinding parameters, it's possible to obtain the input mass G1 and determine whether to add more beans based on it. Specifically, the currently obtained input mass G1 can be used to determine whether to add more beans to the grinder. The quality G1 is compared with the adjustable variable G2. If the obtained bean quality G1 is greater than or equal to the adjustable variable G2, it means that the current bean quality G1 meets the grinder's requirements for coffee powder output. Conversely, if the obtained bean quality G1 is less than the adjustable variable G2, it means that the current bean quality G1 does not meet the grinder's requirements for coffee powder output. At this time, it can be determined that bean feed needs to be added to the grinder. When it is determined that bean feed needs to be added to the grinder, the grinder can generate a second prompt message to remind the user.

[0026] Furthermore, it should be noted that the second prompt message can be a light alarm, an audible alarm, or a combination of both. When the second prompt message is a light alarm, an LED light source, a light-emitting diode, or other light alarm unit can be installed on the coffee grinder to provide a light alarm. When the second prompt message is an audible alarm, a buzzer, a speaker, or other audible alarm unit can be installed on the coffee grinder to provide an audible alarm. Of course, in other embodiments, the second prompt message can also be text, code, and / or numerical information. To display this information, a display screen can be installed on the coffee grinder. Alternatively, in some embodiments, the second prompt message can be emitted by a wireless terminal device such as a mobile phone or tablet computer on the user side. In this embodiment, the type and method of emitting the second prompt message are not specifically limited.

[0027] Furthermore, it is clear from the above that, besides directly measuring the quality of the coffee powder to determine whether the coffee beans have been ground, as an alternative, in some embodiments, after grinding the coffee beans currently in the grinder according to the currently called grinding parameters, i.e., after step 120, such as... Figure 4 As shown, the grinding method also includes the following steps: Step 131: Obtain the grinding time of the coffee beans in real time.

[0028] Step 141: Based on the obtained grinding time, determine whether to continue grinding the coffee beans.

[0029] Step 151: If it is determined that grinding the coffee beans will no longer be continued, a stop operation is performed, and a first prompt message is generated and issued. If it is determined that grinding the coffee beans will continue, return to step 120.

[0030] Specifically, in some embodiments, since the rotation speed of the coffee grinder is generally fixed when grinding coffee beans, the grinding time varies depending on the weight of the coffee beans. Therefore, in order for the grinder to precisely control the grinding time based on the target weight of the coffee powder in the grinding instruction, in some embodiments, the grinder can set different target times for different target weights of coffee powder. For example, when the grinder receives a target weight of 10g of coffee powder in the grinding instruction, the target time for 10g of coffee powder is T1 seconds. Or, when the grinder receives a target weight of 18g of coffee powder in the grinding instruction, the target time for 18g of coffee powder is T2 seconds, and so on. Therefore, the step of determining whether to continue grinding the coffee beans based on the obtained grinding time specifically includes: The currently obtained grinding time is compared with the target time corresponding to the target quality of coffee powder in the grinding instruction.

[0031] If the current grinding time is less than the target time corresponding to the target quality, then it is determined that grinding the coffee beans will continue. If the current grinding time is equal to the target time corresponding to the target quality, then it is determined that grinding the coffee beans will stop. The target time is calculated based on the target quality of the coffee powder in the currently received grinding instruction. Alternatively, the target time can be an adjustable variable pre-stored in the grinder's storage module 2 corresponding to different target qualities.

[0032] Additionally, it's worth noting that because the grinder combines [various processes] when grinding coffee beans... Figure 6 and Figure 8 As shown, the friction between the moving blade 412, the fixed blade 411 of the grinder 4 and the coffee beans will cause an electrostatic effect, resulting in static electricity. This will cause some coffee powder to adhere to the walls of the moving blade 412 and the fixed blade 411. Therefore, after the grinder finishes grinding the coffee beans, the mass of coffee powder in the powder cup 3 will be much less than the target mass of coffee powder obtained by the grinder, thus affecting the flavor and concentration of the coffee powder during extraction and the taste of the coffee. Therefore, to avoid this phenomenon, as a preferred solution, in some embodiments, after grinding the coffee beans according to the currently selected grinding parameters, i.e., after step 120, such as... Figure 5 As shown, the grinding method also includes the following steps: Step 160: Within a preset time period, turn on the negative ion generator 5 of the coffee grinder, causing it to discharge and generate electrons that enter the coffee grinder's powder container 3. For example, as... Figure 6 As shown, a negative ion generator 5 can be installed on the main housing of the coffee grinder, and this negative ion generator 5 can be located above the powder cup 3. Furthermore, as... Figure 6 As shown, the negative ion generator 5 includes a generator body 51 and an electrical connection assembly 52. ​​The generator body 51 has an emitter 511 capable of generating negative ions into the powder cup 3, and this emitter 511 can act within the powder cup 3. Furthermore, as... Figure 6 As shown, the electrical connection component 52 is disposed on the generator body 51, and the electrical connection component 52 is also electrically connected to the main control module 6 of the grinder. At the same time, the electrical connection component 52 is also used to transmit the electrical energy generated by the main control module 6 to the generator body 51, so that the emitter 511 of the generator body 51 discharges and generates electrons that enter the powder cup 3.

[0033] It is easy to see that after the coffee grinder grinds the coffee beans, by turning on the negative ion generator 5, the emitter 511 of the negative ion generator 5 can continuously discharge and generate electrons that enter the coffee cup 3. These electrons can quickly transfer to the coffee powder adsorbed on the moving burr plate 412 and the fixed burr plate 411, so that the coffee powder on the moving burr plate 412 and the fixed burr plate 411 can quickly fall into the coffee cup 3, and the quality of the coffee powder held in the coffee cup 3 can be basically consistent with the quality of the coffee beans, thereby ensuring the flavor and taste of the coffee powder during the later extraction.

[0034] Example 2 Embodiment 2 of the present invention relates to a coffee grinder, such as Figure 6 , Figure 7 and Figure 10 As shown, the coffee grinder includes: a bean hopper 1, a grinding device 4, a powder cup 3, a storage module 2, and a main control module 6.

[0035] Among them, such as Figure 6 and Figure 7 As shown, bean hopper 1 is used for feeding coffee beans, while grinding device 4 is used to grind the coffee beans fed into bean hopper 1. Secondly, combined with... Figure 6 As shown, the powder cup 3 is used to collect the coffee powder discharged by the grinding device 4 during the grinding of coffee beans. Finally, as... Figure 9 As shown, the storage module 2 pre-stores at least one grinding parameter for grinding coffee beans by the grinding device 4.

[0036] In addition, combined Figure 9As shown, the main control module is communicatively connected to the grinding device 4 and the storage module 2. The main control module 6 receives grinding commands and retrieves the corresponding grinding parameters from the storage module 2 based on the received commands. Simultaneously, the main control module 6 also drives the grinding device 4 according to the currently retrieved grinding parameters, enabling the grinding device 4 to grind the coffee beans and ensuring that the particle size of the resulting coffee powder reaches the target range.

[0037] As can be seen from the above, since the main control module 6 of the coffee grinder can receive grinding instructions, and at the same time, the main control module 6 can also call up the corresponding grinding parameters from the storage module 2 according to the received grinding instructions, and drive the grinding device 4 to grind the put-in coffee beans through the grinding parameters, it can ensure that the particle size of the coffee powder obtained after grinding can reach the target range. Therefore, it can effectively reduce the learning cost for users when manually grinding coffee beans, and enable different users to grind coffee powder with a suitable particle size in a short time. This effectively avoids the phenomenon of over-extraction or under-extraction of coffee powder during the extraction process, and ensures the stability of coffee flavor.

[0038] Specifically, in some embodiments, such as Figure 7 and Figure 8 As shown, the coffee grinding device 4 includes: a grinding assembly 41, a drive assembly 42, and an adjustment assembly 43. Wherein, as... Figure 7 As shown, the grinding assembly 41 includes, along a preset axis, a fixed blade disc 411 and a movable blade disc 412 opposite to the fixed blade disc 411, and is combined with... Figure 8 As shown, a grinding gap 413 for grinding coffee beans is formed between the moving blade 412 and the fixed blade 411. Secondly, as... Figure 7 and Figure 8 As shown, the drive assembly 42 is connected to the moving blade disc 412. This drive assembly 42 drives the moving blade disc 412 to rotate relative to the fixed blade disc 411 about a preset axis, allowing the moving blade disc 412 to cooperate with the fixed blade disc 411 in grinding coffee beans that have entered the grinding gap 413. Finally, as... Figure 7 and Figure 8 As shown, the adjusting component 43 is connected to the moving blade disc 412. The adjusting component 43 is used to drive the moving blade disc 412 to move linearly along a preset axis, thereby achieving the purpose of adjusting the grinding gap 413. Of course, in other embodiments, the adjusting component 43 can also be connected to the fixed blade disc 411. Therefore, the adjusting component 43 can also be used to drive the fixed blade disc 411 to move linearly along a preset axis, thereby achieving the same purpose of adjusting the grinding gap 413.

[0039] Additionally, it is worth noting that in some embodiments, the grinding parameters may include: the rotational speed of the moving blade 412 and / or the grind size of the coffee beans by the grinding assembly 41. Furthermore, in conjunction with...Figure 9 As shown, the main control module 6 can communicate with the drive component 42 and the adjustment component 43 respectively, so that the main control module 6 can be used to control the drive component 42 to drive the moving blade disk to rotate according to the currently called grinding parameters, and / or control the adjustment component 43 to drive the moving blade disk 412 or the fixed blade disk 411 to move linearly along the preset axis direction according to the grinding degree of the grinding parameters, so as to change the grinding gap 413, thereby ensuring that the particle size of the coffee powder formed by the coffee beans ground by the grinding component 41 can reach the target range.

[0040] Additionally, in some embodiments, such as Figure 7 and Figure 8 As shown, the adjusting rod 431 is further provided with a receiving space 435 along a preset axis direction, and the drive assembly 42 includes: a second motor 421, a connecting shaft 422, and a bearing 423 disposed within the receiving space 435 of the adjusting rod 431. One end of the connecting shaft 422 is inserted into the receiving space 435 of the adjusting rod 431 and connected to the output end of the second motor 421, while the other end of the connecting shaft 422 is connected to the moving blade disc 412 of the grinding assembly 41. Furthermore, the bearing 423 is disposed within the receiving space 435 of the adjusting rod 431, and the bearing 423 is also sleeved on the connecting shaft 422 for relative rotation between the connecting shaft 422 and the adjusting rod 431. Therefore, when coffee beans need to be ground, the main control module 6 can control the second motor 421 according to the rotation speed in the currently called grinding parameters, so that the second motor 421 drives the moving blade 412 to rotate through the connecting shaft 422, thereby enabling the moving blade 412 to work with the fixed blade 411 to grind the coffee beans.

[0041] Furthermore, in order to enable the adjusting component 43 to drive the moving cutter head 412 to move linearly along a preset axis, in other embodiments, such as Figure 7 and Figure 8 As shown, the adjusting assembly 43 includes: an adjusting rod 431, a lead screw sleeve 432, an external gear ring 433, a gear 434, and a first motor (not shown in the figure). Among them, as... Figure 7 and Figure 8As shown, the adjusting rod 431 is connected to the connecting shaft 422 along a preset axis. Next, the lead screw sleeve 432 is fitted onto the top of the adjusting rod 431. Additionally, the external gear ring 433 is fitted onto the lead screw sleeve 432 and threadedly connected to it. The gear 434 is coaxially connected to the main shaft of the first motor and also meshes with the external gear ring 433. Therefore, when it is necessary to adjust the grinding gap 413 between the moving blade disc 412 and the fixed blade disc 411, the main control module 6 can control the first motor according to the grinding degree in the currently called grinding parameters, causing the first motor to drive the gear 434 to rotate. When the gear 434 rotates, it can synchronously drive the external gear ring 433 to rotate through meshing with it. Meanwhile, when the outer gear ring 433 rotates, it can be connected to the lead screw sleeve 432 by thread, so that the lead screw sleeve 432 can change the rotational motion of the outer gear ring 433 into a linear motion along the preset axis, thereby driving the adjusting rod 431 connected to it to move linearly along the preset axis. In addition, during the linear motion, the adjusting rod 431 can simultaneously drive the connecting shaft 422 of the grinding device 4 connected to it to move together, thereby changing the size of the grinding gap 413 between the moving blade 412 and the fixed blade 411, so as to adjust the grinding degree of the grinding assembly 41.

[0042] It is clear from the above that this embodiment is an embodiment of a coffee grinder corresponding to Embodiment 1, and this embodiment can be implemented in conjunction with Embodiment 1. The relevant technical details mentioned in Embodiment 1 remain valid in this embodiment, and will not be repeated here to avoid repetition. Correspondingly, the relevant technical details mentioned in this embodiment can also be applied to Embodiment 1.

[0043] Those skilled in the art will understand that the above embodiments are specific implementations of the present invention, and in practical applications, various changes can be made in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A method of grinding coffee beans, characterized in that, The grinding method comprises the following steps: According to the currently received coffee bean grinding instruction, the corresponding grinding parameter is called; According to the currently called grinding parameter, the coffee beans currently put into the coffee bean grinder are ground, so that the particle size of the coffee powder obtained after the coffee beans are ground reaches the target range.

2. The method of grinding coffee beans according to claim 1, characterized in that, The coffee bean grinding instruction is a wireless instruction sent by a terminal device, or a local instruction generated by a physical button or touch panel on the coffee bean grinder; Among the coffee bean grinding instruction, at least one of the following information is included: the type information of the coffee beans, the roasting information of the coffee beans, the grinding degree information of the coffee beans, and the target quality information of the coffee powder, and each coffee bean grinding instruction corresponds to one grinding parameter.

3. The method of grinding coffee beans according to claim 2, characterized in that, The grinding parameter corresponding to each coffee bean grinding instruction is adjustable, and the grinding parameter includes at least one of the following: the rotating speed of the cutter head (412) of the coffee bean grinding device (4) when grinding coffee beans, and the grinding degree of the coffee bean grinding device (4) when grinding coffee beans.

4. The method of grinding coffee beans according to claim 2, wherein, After the coffee beans currently put into the coffee bean grinder are ground according to the currently called grinding parameter, the grinding method further comprises the following steps: The mass of the coffee powder in the powder cup (3) of the coffee bean grinder is obtained in real time; According to the obtained mass of the coffee powder, it is judged whether to continue grinding the coffee beans; If it is determined that the coffee beans are no longer ground, a shutdown operation is performed, and a first prompt information is generated and sent.

5. The method of grinding coffee beans according to claim 4, characterized in that, In the step of judging whether to continue grinding the coffee beans according to the obtained mass of the coffee powder, specifically comprising: The currently obtained mass of the coffee powder is compared with the target mass of the coffee powder in the coffee bean grinding instruction; If the currently obtained mass of the coffee powder is less than the target mass, it is determined to continue grinding the coffee beans; If the currently obtained mass of the coffee powder is greater than or equal to the target mass, it is determined that the coffee beans are no longer ground; The target mass is calculated according to the mass of the coffee beans, or the target mass is a variable pre-stored in the storage module (2) of the coffee bean grinder.

6. The method of grinding coffee beans according to claim 5, characterized in that, When the target mass is a variable pre-stored in the storage module (2) of the coffee bean grinder, after the corresponding grinding parameter is called according to the currently received coffee bean grinding instruction, and before the coffee beans currently put into the coffee bean grinder are ground according to the currently called grinding parameter, the grinding method further comprises the following steps: The mass of the coffee beans put into the coffee bean grinder is obtained in real time; According to the currently obtained mass of the coffee beans, it is judged whether the coffee beans need to be supplemented into the coffee bean grinder; If it is determined that the coffee beans need to be supplemented into the coffee bean grinder, a second prompt information is generated and sent.

7. The method of grinding coffee beans according to claim 5, wherein, In the step of judging whether the coffee beans need to be supplemented into the coffee bean grinder according to the currently obtained mass of the coffee beans, specifically comprising: The currently obtained mass of the coffee beans is compared with the variable; If the currently obtained mass of the coffee beans is less than the variable, it is determined that the coffee beans need to be supplemented into the coffee bean grinder; If the currently obtained mass of the coffee beans is greater than or equal to the variable, it is determined that the coffee beans do not need to be supplemented into the coffee bean grinder.

8. The method of grinding coffee beans according to claim 2, wherein, After the coffee beans currently put into the grinder are ground according to the grinding parameter corresponding to the current call, the grinding method further comprises the following steps: Real-time acquisition of the grinding duration of the coffee beans ground by the grinder; According to the obtained grinding duration, it is determined whether to continue grinding the coffee beans; If it is determined that the coffee beans are no longer ground, a shutdown operation is performed, and a first prompt information is generated and sent.

9. The method of grinding coffee beans according to claim 8, characterized in that, In the step of determining whether to continue grinding the coffee beans according to the obtained grinding duration, specifically comprising: The current obtained grinding duration is compared with the target duration corresponding to the target mass of coffee powder in the grinding instruction; If the current obtained grinding duration is less than the target duration corresponding to the target mass, it is determined to continue grinding the coffee beans; If the current obtained grinding duration is equal to the target duration corresponding to the target mass, it is determined that the coffee beans are no longer ground; The target duration is calculated by the target mass of coffee powder in the currently received grinding instruction; or the target duration is a variable corresponding to different target masses pre-stored in the storage module (2) of the grinder.

10. The method of grinding coffee beans according to any one of claims 1-9, wherein, After the coffee beans are ground according to the grinding parameter corresponding to the current call, the grinding method further comprises the following steps: The negative ion generating device (5) of the grinder is turned on within a preset duration, so that the negative ion generating device (5) discharges and generates electrons into the powder cup (3) of the grinder.

11. A bean grinder, characterized by The grinder comprises: Bean bin (1) for coffee beans; Grinding device (4) for grinding coffee beans put into the bean bin (1); Powder cup (3) for receiving coffee powder discharged by the grinding device (4) during grinding of coffee beans; Storage module (2) pre-storing at least one grinding parameter for grinding coffee beans by the grinding device (4); Main control module (6) respectively in communication connection with the grinding device (4) and the storage module (2); The main control module (6) is used for receiving a grinding instruction and calling corresponding grinding parameters from the storage module (2) according to the received grinding instruction; the main control module (6) is also used for driving the grinding device (4) according to the currently called grinding parameters, so that the grinding device (4) grinds the coffee beans, and the particle size of the coffee powder obtained after grinding the coffee beans reaches a target range.

Images