Grinding machine
By integrating the weighing module in the grinder, the existing grinders have solved the problem of cumbersome control of coffee bean weight and operation, and the precise weighing and convenient operation of coffee beans and coffee powder are achieved.
Patent Information
- Application Number
- CN202421472032.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-25
AI Technical Summary
When making freshly ground coffee, existing grinders are difficult to accurately control the weight of coffee beans, resulting in waste of coffee powder or taste influence. Users need to frequently convert coffee beans between different devices, which is cumbersome.
A grinder with integrated weighing module is designed. The main assembly is equipped with a driver and weighing module. The grinding assembly and the powder-coating cup are removably connected. The weighing module can weigh the grinding assembly and/or the powder-coating cup to achieve accurate weighing of coffee beans and coffee powder.
Through the integrated weighing module, the functional diversity of the grinder is improved, and users can easily weigh coffee beans and coffee powder, avoiding inconvenient conversion of materials between different devices and simplifying the operation process.
Smart Images
Figure CN222787589U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material grinding, in particular to a grinding machine. Background Art
[0002] As people's living standards improve, their pursuit of coffee has gradually changed from instant coffee to freshly ground coffee. Freshly ground coffee is usually made by grinding coffee beans with a grinder to grind the coffee beans into coffee powder for making coffee. When making freshly ground coffee, it is usually necessary to control the weight of the ground coffee beans, but the existing grinders have relatively single functions. The specific weight control of the coffee beans is usually roughly estimated by hand. If the number of coffee beans is too large, it will cause the remaining waste of the produced coffee powder. If the number is small, it will affect the subsequent production of coffee and the taste of the coffee. Some users will choose external weighing equipment to weigh the weight of the coffee beans, but this method makes the entire coffee manufacturing operation process more cumbersome. The coffee beans need to be circulated between different devices, which is very inconvenient to operate. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a grinder, which is provided with a weighing module, which can weigh the grinding assembly and / or the powder receiving cup, thereby improving the functional diversity of the grinder. The user can weigh the weight of the coffee beans and / or coffee powder through the weighing module, which is conducive to avoiding the trouble of circulating the coffee beans and / or coffee powder between different devices and facilitating operation and use.
[0004] According to the grinder described in the embodiment of the utility model, it includes a main body component, a grinding component and a powder receiving cup, the main body component is provided with a driver and a weighing module, the grinding component is detachably connected to the lower side of the main body component and is provided with a feeding cavity capable of placing coffee beans, the grinding component is provided with a grinding knife group, the grinding knife group is located at the lower side of the feeding cavity, so that the coffee beans in the feeding cavity can fall into the grinding knife group, the driver can be connected to the grinding knife group to drive the grinding knife group to grind the coffee beans, the powder receiving cup is detachably connected to the lower side of the grinding component, and is used for receiving the coffee powder that falls after being ground by the grinding knife group, and the weighing module can weigh the grinding component and / or the powder receiving cup.
[0005] According to the grinder described in the embodiment of the utility model, it has at least the following beneficial effects: when in use, the grinding assembly is first disassembled and separated from the main assembly, and coffee beans are added to the feeding chamber, and then the grinding assembly, the main assembly and the powder receiving cup can be assembled together, and the coffee beans in the feeding chamber fall into the grinding knife group, and the driver drives the grinding knife group to move, so that the grinding knife group grinds the coffee beans, and the powder receiving cup receives the coffee powder that falls after being ground by the grinding knife group, so as to achieve the grinding and production of coffee powder. Since the main assembly itself is provided with a weighing module, the weighing module can weigh the grinding assembly and / or the powder receiving cup, and after the coffee beans are added to the feeding chamber, the grinding assembly or the grinding assembly and the powder receiving cup can be weighed to obtain the weight of the added coffee beans; or, after the coffee powder is ground, the powder receiving cup can be disassembled and removed and weighed by the weighing module to obtain the weight of the obtained coffee powder. Through the above structure, the functional diversity of the grinder is improved. The user can weigh the weight of the coffee beans and / or coffee powder through the weighing module on the main component, which is helpful to avoid the trouble of transferring coffee beans and / or coffee powder between different devices and facilitates operation and use.
[0006] According to some embodiments of the utility model, the weighing module is arranged on the upper part of the main body component and includes a weighing platform and a weighing sensor, the main body component includes a first shell, the weighing platform is arranged on the upper side of the first shell, one end of the weighing sensor is connected to the weighing platform, and the other end is connected to the first shell.
[0007] According to some embodiments of the utility model, the main body component includes a first shell, the driver is disposed in the first shell, a rotating member is provided on the lower side of the first shell, the driver is drivingly connected to the rotating member to drive the rotating member to rotate, the grinding knife group is connected to a transmission shaft, and the rotating member is detachably connected to the transmission shaft so as to be able to drive the grinding knife group to move through the transmission shaft.
[0008] According to some embodiments of the utility model, the upper side of the material loading cavity is an open structure, the main body component can cover the upper opening of the material loading cavity, the lower side of the material loading cavity is provided with a material drop opening, and the grinding knife group is connected to the material drop opening.
[0009] According to some embodiments of the present invention, the lower cavity wall of the loading cavity is an inclined surface or a curved surface structure, which can guide the coffee beans in the loading cavity to the drop port.
[0010] According to some embodiments of the utility model, the grinding knife group includes a first grinding knife and a second grinding knife, the second grinding knife is annular, the first grinding knife is located on the inner side of the ring of the second grinding knife and defines a grinding chamber between the first grinding knife and the second grinding knife, the grinding chamber is connected to the material storage chamber, the inner side of the ring of the second grinding knife is in the shape of an inverted frustum and / or the outer peripheral side of the first grinding knife is in the shape of a frustum, so that the transverse cross-sectional area of the grinding chamber gradually decreases from top to bottom, the inner side of the ring of the second grinding knife and the outer peripheral side of the first grinding knife are both provided with a blade for grinding, and a powder discharge gap is provided on the lower side of the grinding chamber.
[0011] According to some embodiments of the utility model, the grinding assembly is provided with an adjustment structure, and the adjustment structure is capable of adjusting the size of the powder outlet gap.
[0012] According to some embodiments of the utility model, the grinding assembly includes a second shell, and the adjustment structure includes a first adjustment ring and a second adjustment ring, the first adjustment ring is rotatably connected to the second shell, the second adjustment ring is fixedly connected to the second grinding knife, the second adjustment ring is movably connected to the second shell and can move up and down relative to the second shell, the first adjustment ring and the second adjustment ring are threadedly matched, and when the first adjustment ring rotates, it can drive the second adjustment ring to move up and down, thereby driving the second grinding knife to move up and down relative to the first grinding knife.
[0013] According to some embodiments of the utility model, the grinding assembly also includes a lower end cover, the second shell is provided with an extension portion extending downward, the lower end cover is connected to the lower side of the extension portion, the first adjustment ring is rotatably clamped between the second shell and the lower end cover, the inner side of the first adjustment ring is provided with a threaded inner wall, the extension portion is provided with a limiting groove extending in the up and down directions, the second adjustment ring is provided with a limiting portion located in the limiting groove, the limiting portion is threadably matched with the threaded inner wall and can move up and down along the limiting groove.
[0014] According to some embodiments of the utility model, the main body component is provided with a power supply, and the power supply is electrically connected to the driver so as to be able to supply power to the driver.
[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0017] Figure 1This is a schematic diagram of the structure of the grinding machine according to an embodiment of the utility model;
[0018] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the grinding machine;
[0019] Figure 3 for Figure 1 A schematic diagram of a partial structural cross section of a medium grinding machine;
[0020] Figure 4 for Figure 1 Schematic diagram of the exploded structure of the grinding assembly.
[0021] Reference numerals:
[0022] Main assembly 100, display module 101, first housing 110, driver 120, rotating member 121, weighing platform 130, weighing sensor 140, power supply 150;
[0023] Grinding assembly 200, material placement chamber 201, material discharge port 202, grinding chamber 203, powder discharge gap 204, limiting groove 205, clamping hole 206, first grinding blade 210, second grinding blade 220, transmission shaft 230, second housing 240, extension part 241, first adjustment ring 250, threaded inner wall 251, second adjustment ring 260, limiting part 261, lower end cover 270, clamping part 271;
[0024] Powder collecting cup 300. DETAILED DESCRIPTION
[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0026] In the description of the present invention, it is necessary to understand that if it involves orientation description, the orientation or position relationship indicated, such as up, down, etc., is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0027] In the description of the present utility model, if the words "some", "greater than", "less than", "exceed", "over", "under", "within" etc. appear, among which "some" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number, and "over", "under", "within" etc. are understood to include the number.
[0028] If the first and second are described, they are only used to distinguish the technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.
[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0030] Reference Figure 1 , Figure 2 and Figure 3 A grinder comprises a main body component 100, a grinding component 200 and a powder receiving cup 300. The main body component 100 is provided with a driver 120 and a weighing module. The grinding component 200 is detachably connected to the lower side of the main body component 100 and is provided with a feeding cavity 201 for placing coffee beans. The grinding component 200 is provided with a grinding knife group, which is located at the lower side of the feeding cavity 201 so that the coffee beans in the feeding cavity 201 can fall into the grinding knife group. The driver 120 can be connected to the grinding knife group to drive the grinding knife group to grind the coffee beans. The powder receiving cup 300 is detachably connected to the lower side of the grinding component 200 and is used to receive the coffee powder that falls after being ground by the grinding knife group. The weighing module can weigh the grinding component 200 and / or the powder receiving cup 300.
[0031] It is understandable that if Figure 1 , Figure 2 and Figure 3As shown, the main component 100 is provided with a display module 101, and the display module 101 is electrically connected to the weighing module so as to be able to directly or indirectly display the weighing result of the weighing module. When in use, the grinding component 200 is first disassembled and separated from the main component 100, and the coffee beans are added to the material placement chamber 201, and then the grinding component 200, the main component 100 and the powder receiving cup 300 can be assembled together, and the coffee beans in the material placement chamber 201 fall into the grinding knife group, and the driver 120 drives the grinding knife group to move, so that the grinding knife group grinds the coffee beans, and the powder receiving cup 300 receives the coffee powder that falls after being ground by the grinding knife group, so as to realize the grinding and production of coffee powder. Since the main component 100 itself is provided with a weighing module, the weighing module can weigh the grinding component 200 and / or the powder cup 300. After adding coffee beans to the material chamber 201, the grinding component 200 or the grinding component 200 and the powder cup 300 can be weighed to obtain the weight of the added coffee beans; or, after grinding to obtain coffee powder, the powder cup 300 can be disassembled and weighed by the weighing module to obtain the weight of the obtained coffee powder. Through the above structure, the functional diversity of the grinder is improved. The user can weigh the weight of coffee beans and / or coffee powder through the weighing module on the main component 100, which is conducive to avoiding the trouble of coffee beans and / or coffee powder turnover between different devices and is convenient for operation and use.
[0032] In actual application, in addition to setting up the display module 101, a language module can also be set up to report the weighing result directly or indirectly so that the user can obtain the weighing information. Alternatively, the display function is integrated into the weighing module, and the weighing module can display the weighing information separately. The detachable connection between the main component 100, the grinding component 200 and the powder receiving cup 300 can be achieved by threaded screwing, snap-on connection, screw-on connection or interference fit, which can be set accordingly according to actual use needs.
[0033] In some embodiments, the weighing module is disposed on the upper part of the main body component 100 and includes a weighing platform 130 and a weighing sensor 140. The main body component 100 includes a first shell 110. The weighing platform 130 is disposed on the upper side of the first shell 110. One end of the weighing sensor 140 is connected to the weighing platform 130, and the other end is connected to the first shell 110.
[0034] It is understandable that if Figure 3As shown, the first shell 110 has an inner cavity, and a weighing sensor 140 is provided on the upper part thereof. The weighing platform 130 is provided above the weighing sensor 140. The two ends of the weighing sensor 140 are respectively connected to the first shell 110 and the weighing platform 130. When weighing, the grinding assembly 200, the powder cup 300, or the grinding assembly 200 and the powder cup 300 can be placed on the weighing platform 130, and the weight is measured by the weighing sensor 140 below to realize the weighing function. The structure is simple. When not making coffee, the weighing module can also be used as an ordinary weighing device to increase the functionality of the utility model. In actual application, in addition to setting the weighing platform 130, a hook can also be provided to hook the grinding assembly 200 or the powder cup 300 for weighing. The specific changes can be made according to the actual use needs.
[0035] In some embodiments, the main body assembly 100 includes a first shell 110, a driver 120 is disposed in the first shell 110, a rotating member 121 is disposed on the lower side of the first shell 110, the driver 120 is drivingly connected to the rotating member 121 to drive the rotating member 121 to rotate, and the grinding knife group is connected to a transmission shaft 230, and the rotating member 121 and the transmission shaft 230 are detachably connected so as to be able to drive the grinding knife group to move through the transmission shaft 230.
[0036] It is understandable that if Figure 3 As shown, the driver 120 is arranged in the inner cavity of the first shell 110, and the driving connection is connected to the rotating member 121, and the grinding knife group is connected to the transmission shaft 230. When the main assembly 100 and the grinding assembly 200 are assembled together, the transmission shaft 230 is inserted into the rotating member 121, and the grinding knife group is driven to move through the rotating member 121 and the transmission shaft 230 to achieve the grinding operation; when the main assembly 100 and the grinding assembly 200 are disassembled and separated, the transmission shaft 230 is separated from the rotating member 121, and its structure is simple and easy to use. In actual application, the transmission between the transmission shaft 230 and the rotating member 121 can be achieved through the cooperation of a non-circular shaft hole, or through a spline structure, which can be changed accordingly according to actual use needs.
[0037] In some embodiments, the upper side of the material placement cavity 201 is an open structure, the main body component 100 can cover the upper opening of the material placement cavity 201, and a material drop opening 202 is provided on the lower side of the material placement cavity 201, and the grinding knife assembly is connected to the material drop opening 202.
[0038] It is understandable that if Figure 1 , Figure 2 and Figure 3As shown, the feeding chamber 201 is provided on the first shell 110 and its upper side is an open structure. When the grinding assembly 200 is disassembled and separated from the main assembly 100, coffee beans can be added to the feeding chamber 201; when the grinding assembly 200 and the main assembly 100 are assembled together, the main assembly 100 shields the upper opening of the feeding chamber 201 to simplify the operation. A feeding port 202 is provided on the lower side of the feeding chamber 201, and the grinding knife group is docked with the feeding port 202 to facilitate the grinding operation of the grinding knife group and facilitate use. In actual application, in addition to the above structure, a lid can be additionally provided to block and close the feeding chamber 201, which can be set accordingly according to actual use needs.
[0039] Furthermore, the lower cavity wall of the feeding cavity 201 is an inclined surface or a curved surface structure, which can guide the coffee beans in the feeding cavity 201 to the feeding port 202.
[0040] It is understandable that if Figure 3 As shown, the lower wall of the feeding chamber 201 is a curved surface structure. Through the guidance of the curved surface structure, the coffee beans in the feeding chamber 201 can fall into the drop opening 202 along the lower curved surface wall, which is conducive to the drop of the material in the feeding chamber 201, reduces the possibility of material accumulation in the feeding chamber 201, and is convenient for use. In actual application, the lower wall of the feeding chamber 201 can also be a slope structure, which can be set accordingly according to actual use needs.
[0041] In some embodiments, the grinding knife group includes a first grinding knife 210 and a second grinding knife 220, the second grinding knife 220 is annular, the first grinding knife 210 is located on the inner side of the ring of the second grinding knife 220 and defines a grinding chamber 203 between the first grinding knife 220, the grinding chamber 203 is connected to the material chamber 201, the inner side of the ring of the second grinding knife 220 is in the shape of an inverted frustum and / or the outer side of the first grinding knife 210 is in the shape of a frustum, so that the transverse cross-sectional area of the grinding chamber 203 gradually decreases from top to bottom, the inner side of the ring of the second grinding knife 220 and the outer side of the first grinding knife 210 are both provided with a blade for grinding, and a powder outlet gap 204 is provided on the lower side of the grinding chamber 203.
[0042] It is understandable that if Figure 3 and Figure 4As shown, the second grinding knife 220 is annular and the inner side of the ring is inverted truncated cone shape, the first grinding knife 210 is located on the inner side of the ring of the second grinding knife 220 and the outer peripheral side thereof is truncated cone shape, so that the transverse cross-sectional area of the grinding cavity 203 defined between the two gradually decreases from top to bottom, the inner side of the ring of the second grinding knife 220 and the outer peripheral side of the first grinding knife 210 are both provided with a blade for grinding, the first grinding knife 210 is connected to the transmission shaft 230, and is driven to rotate by the transmission shaft 230, so that the blade of the first grinding knife 210 and the second grinding knife The blades 220 move relatively to grind the coffee beans in the grinding chamber 203. Since the width of the grinding chamber 203 gradually decreases downward, the coffee beans can be gradually ground into fine powder. When the particle size of the powder reaches the preset requirement, it can fall into the powder receiving cup 300 through the powder outlet gap 204 below for collection, while the larger particles that do not meet the requirement continue to flow in the grinding chamber 203 for grinding, which is beneficial to ensure that the prepared powder meets the requirements, avoid the situation where the powder particle size varies greatly, and is convenient for use.
[0043] In actual application, in addition to the above-mentioned structure, the grinding knife group may also adopt other structural forms, such as the inner side of the ring of the second grinding knife 220 is a straight cylindrical wall structure, and the outer peripheral wall of the first grinding knife 210 is a truncated cone structure, or the inner side of the ring of the second grinding knife 220 is an inverted truncated cone structure, and the outer peripheral wall of the first grinding knife 210 is a straight cylindrical wall structure, or the grinding knife group adopts a stirring knife structure, which can be set accordingly according to actual use needs.
[0044] In some embodiments, the grinding assembly 200 is provided with an adjustment structure, and the adjustment structure can adjust the size of the powder outlet gap 204. It is understandable that by providing the adjustment structure to adjust the size of the powder outlet gap 204, the size of the powder particles obtained by grinding can be controlled and changed to meet different grinding requirements and improve adaptability.
[0045] Specifically, the grinding assembly 200 includes a second shell 240, and the adjustment structure includes a first adjustment ring 250 and a second adjustment ring 260. The first adjustment ring 250 is rotatably connected to the second shell 240, and the second adjustment ring 260 is fixedly connected to the second grinding knife 220. The second adjustment ring 260 is movably connected to the second shell 240 and can move up and down relative to the second shell 240. The first adjustment ring 250 and the second adjustment ring 260 are threadedly matched. When the first adjustment ring 250 rotates, it can drive the second adjustment ring 260 to move up and down, thereby driving the second grinding knife 220 to move up and down relative to the first grinding knife 210.
[0046] It is understandable that if Figure 2 , Figure 3 and Figure 4As shown, the material placement chamber 201 is arranged on the upper side of the second shell body 240, the first adjusting ring 250 is rotatably connected to the lower side of the second shell body 240, the second adjusting ring 260 is arranged on the inner side of the first adjusting ring 250 and is fixedly connected to the second grinding knife 220, the second adjusting ring 260 is movably connected to the second shell body 240 and can move up and down relative to the second shell body 240, the first adjusting ring 250 and the second adjusting ring 260 are threadedly matched, and when adjusting and using, the first adjusting ring 250 can be rotated, and the thread structure is used to drive the second adjusting ring 260 to move up and down, thereby driving the second grinding knife 220 to move up and down relative to the first grinding knife 210, so as to change the gap between the lower sides of the two and adjust the size of the powder outlet gap 204. Its structure is simple, and the thread structure is conducive to achieving a more precise adjustment effect, which is easy to use.
[0047] In actual application, in addition to the above structure, the transmission shaft 230 can be set to move up and down, thereby driving the first grinding knife 210 to move and changing its installation up and down position, so as to achieve the size adjustment of the powder outlet gap 204, or the second grinding knife 220 can be set to move up and down relative to the first grinding knife 210, and a locking structure is set to lock the moving position of the second grinding knife 220. The specific settings can be made according to actual use needs.
[0048] Furthermore, the grinding assembly 200 also includes a lower end cover 270, the second shell 240 is provided with an extension portion 241 extending downward, the lower end cover 270 is connected to the lower side of the extension portion 241, the first adjustment ring 250 can be rotatably clamped between the second shell 240 and the lower end cover 270, the inner side of the first adjustment ring 250 is provided with a threaded inner wall 251, the extension portion 241 is provided with a limiting groove 205 extending in the up and down directions, the second adjustment ring 260 is provided with a limiting portion 261 located in the limiting groove 205, the limiting portion 261 is threadedly matched with the threaded inner wall 251 and can move up and down along the limiting groove 205.
[0049] It is understandable that if Figure 2 , Figure 3 and Figure 4As shown, the lower end cover 270 is provided with a snap-fit portion 271, and a snap-fit hole 206 is correspondingly provided on the extension portion 241. The lower end cover 270 is connected to the lower side of the extension portion 241 through the snap-fit cooperation between the snap-fit portion 271 and the snap-fit hole 206. The first adjustment ring 250 can be rotatably clamped between the second shell 240 and the lower end cover 270 to limit its up and down movement; a plurality of limiting portions 261 are provided on the outer side of the second adjustment ring 260, and correspondingly, a plurality of limiting grooves 205 are also provided. The limiting portions 261 are located in the corresponding limiting grooves 205 and can move up and down along the limiting grooves 205, thereby limiting the rotation of the second adjustment ring 260 and realizing the movable connection between it and the second shell 240. The limiting portion 261 is threadedly matched with the threaded inner wall 251. When in use, the first adjusting ring 250 is rotated, and the threaded inner wall 251 pushes the limiting portion 261 upward or drives it downward, thereby driving the second adjusting ring 260 to move up and down. The structure is simple and easy to use.
[0050] In some embodiments, the main assembly 100 is provided with a power supply 150, and the power supply 150 is electrically connected to the driver 120 to be able to supply power to the driver 120. It is understandable that Figure 3 As shown, the power supply 150 is disposed in the inner cavity of the first shell 110, and is electrically connected to the driver 120, the weighing sensor 140, the display module 101, etc., so as to be able to power the driver 120, the weighing sensor 140, the display module 101, etc., so as to facilitate the portable use of the grinder. In actual application, the power supply 150 can be a detachable battery disposed in the battery compartment, or the first shell 110 is provided with a charging interface, and the charging interface is connected to the power supply 150, so as to be able to charge the power supply 150; the grinder of the present invention is not limited to grinding coffee beans, which is only one of the uses of the present invention, and it can also be used for grinding other materials, such as soybeans, peanuts, etc.
[0051] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A grinding machine, characterized in that: include: A main body component, wherein a driver and a weighing module are provided on the main body component; A grinding assembly is detachably connected to the lower side of the main body assembly and is provided with a feeding cavity for placing coffee beans. The grinding assembly is provided with a grinding knife group, and the grinding knife group is located at the lower side of the feeding cavity so that the coffee beans in the feeding cavity can fall into the grinding knife group. The driver can be connected to the grinding knife group to drive the grinding knife group to grind the coffee beans. The powder collecting cup is detachably connected to the lower side of the grinding assembly and is used to collect the coffee powder that falls after being ground by the grinding knife assembly. The weighing module can weigh the grinding assembly and / or the powder collecting cup.
2. The grinding machine according to claim 1, characterized in that The weighing module is arranged on the upper part of the main body component and includes a weighing platform and a weighing sensor. The main body component includes a first shell. The weighing platform is arranged on the upper side of the first shell. One end of the weighing sensor is connected to the weighing platform, and the other end is connected to the first shell.
3. The grinding machine according to claim 1, characterized in that The main body component includes a first shell, the driver is arranged in the first shell, a rotating part is provided on the lower side of the first shell, the driver is connected to the rotating part to drive the rotating part to rotate, the grinding knife group is connected to a transmission shaft, and the rotating part is detachably connected to the transmission shaft so as to drive the grinding knife group to move through the transmission shaft.
4. The grinding machine according to claim 1, characterized in that The upper side of the material placement cavity is an open structure, the main body component can cover the upper opening of the material placement cavity, the lower side of the material placement cavity is provided with a material drop opening, and the grinding knife group is connected to the material drop opening.
5. The grinding machine according to claim 4, characterized in that The lower cavity wall of the feeding cavity is an inclined surface or a curved surface structure, which can guide the coffee beans in the feeding cavity to the drop port.
6. The grinding machine according to claim 1, characterized in that The grinding knife group includes a first grinding knife and a second grinding knife, the second grinding knife is annular, the first grinding knife is located on the inner side of the ring of the second grinding knife and defines a grinding chamber between the first grinding knife and the second grinding knife, the grinding chamber is connected to the material storage chamber, the inner side of the ring of the second grinding knife is in the shape of an inverted truncated cone and / or the outer peripheral side of the first grinding knife is in the shape of a truncated cone, so that the transverse cross-sectional area of the grinding chamber gradually decreases from top to bottom, the inner side of the ring of the second grinding knife and the outer peripheral side of the first grinding knife are both provided with a blade for grinding, and a powder discharge gap is provided on the lower side of the grinding chamber.
7. The grinding machine according to claim 6, characterized in that The grinding assembly is provided with an adjustment structure, and the adjustment structure can adjust the size of the powder outlet gap.
8. The grinding machine according to claim 7, characterized in that The grinding assembly includes a second shell, and the adjustment structure includes a first adjustment ring and a second adjustment ring. The first adjustment ring is rotatably connected to the second shell, the second adjustment ring is fixedly connected to the second grinding knife, the second adjustment ring is movably connected to the second shell and can move up and down relative to the second shell, the first adjustment ring and the second adjustment ring are threadedly matched, and when the first adjustment ring rotates, it can drive the second adjustment ring to move up and down, thereby driving the second grinding knife to move up and down relative to the first grinding knife.
9. The grinding machine according to claim 8, characterized in that The grinding assembly also includes a lower end cover, the second shell is provided with an extension portion extending downward, the lower end cover is connected to the lower side of the extension portion, the first adjustment ring is rotatably clamped between the second shell and the lower end cover, the inner side of the first adjustment ring is provided with a threaded inner wall, the extension portion is provided with a limiting groove extending in the up and down directions, the second adjustment ring is provided with a limiting portion located in the limiting groove, the limiting portion is threadably matched with the threaded inner wall and can move up and down along the limiting groove.
10. The grinding machine according to claim 1, characterized in that The main body component is provided with a power source, and the power source is electrically connected to the driver so as to be able to supply power to the driver.