CN220695075U

CN220695075U - Grinding mechanism and food grinding equipment

Info

Publication number: CN220695075U
Application number: CN202322228614.2U
Authority: CN
Inventors: 孙茂华; 瑞安·约翰·邓伍迪; 李枝永
Original assignee: Shenzhen Proton Motor Co ltd
Current assignee: Shenzhen Proton Motor Co ltd
Priority date: 2023-08-17
Filing date: 2023-08-17
Publication date: 2024-04-02
Anticipated expiration: 2033-08-17

Abstract

The utility model relates to a grinding mechanism and food grinding equipment, wherein the grinding mechanism comprises: the axle center of the first cutterhead extends along a first axial direction; the second cutterhead surrounds the first cutterhead and is arranged with the first cutterhead in a clearance mode so as to form a grinding area; the first base penetrates through the first material channel, and the first material channel is communicated with the grinding area; the brushless motor is arranged in the center of the first material channel, and the brushless motor drives any one of the first cutterhead and the second cutterhead to rotate around the first axial direction. Since the first material passage is located in the center of the brushless motor, the food material can directly enter the grinding area from the center of the motor. And improves the accuracy and efficiency of grinding.

Description

Grinding mechanism and food grinding equipment

Technical Field

The utility model relates to the technical field of grinding, in particular to a grinding mechanism and food grinding equipment.

Background

Food grinders, particularly coffee bean grinders, have a wide and critical application in coffee machines and coffee making. These devices have high requirements for the particle size, uniform particle size distribution, noise control, temperature control, and powder yield of the ground powder. In the field of coffee bean grinding machines, even distribution of granularity and heating of a cutter head during grinding cause temperature rise to heat coffee powder, and the powder yield has an extremely important influence on the taste and mouthfeel of coffee. For example, for an Italian coffee, the addition of 20 grams of beans typically requires a powder yield of about 19.8 grams. Conventional food grinders typically employ brushed series excited brushless motor accelerators and retarders to drive the rotary cutterhead. Because of the small torque of series excited brushless motors, it is often necessary to achieve a large torque output by means of a decelerator. This results in a high-speed rotating motor and decelerator that produce loud noise. Therefore, there is a need for a high torque, silent, and simple structure food grinding apparatus.

Disclosure of Invention

The utility model aims to provide the food grinding equipment which is convenient for controlling the rotating speed and the torque of the motor, is mute, has a simple structure and is easy to realize high-precision assembly of the cutterhead.

In order to solve the above technical problems, the present utility model provides a grinding mechanism, including:

the axle center of the first cutterhead extends along a first axial direction;

the second cutterhead surrounds the first cutterhead and is arranged with the first cutterhead in a clearance mode so as to form a grinding area;

the first base penetrates through the first material channel, and the first material channel is communicated with the grinding area;

the brushless motor is arranged in the center of the first material channel, and the brushless motor drives any one of the first cutterhead and the second cutterhead to rotate around the first axial direction.

More preferably, the brushless motor includes:

the stator is arranged around the second cutterhead as seen along the first axial direction and is positioned at one side of the second cutterhead, which is away from the first cutterhead;

any direction perpendicular to the first axial direction is marked as a first radial direction, and the first material channel is positioned at one side of the stator, which is close to the axle center, when being observed along the first radial direction.

More preferably, the brushless motor further comprises:

the rotor is connected with any one of the first cutterhead or the second cutterhead so as to drive any one of the first cutterhead or the second cutterhead to rotate;

and the first material channel is positioned at one side of the rotor, which is close to the axle center, as seen along the first radial direction.

More preferably, the brushless motor drives the second cutter to rotate around the first axial direction, the rotor is connected with the second cutter disc, wherein,

the rotor includes:

the first induction part is arranged around the stator and is positioned at one side of the stator away from the second cutterhead when being observed along the first axial direction,

the first connecting part is connected with the first sensing part and the second cutterhead, and the first sensing part rotates under the electromagnetic force of the stator to drive the second cutterhead connected with the first connecting part to rotate relatively to the first cutterhead around the first axial direction;

and observing the first material channel along the first radial direction, wherein the first material channel is positioned at one side of the first connecting part, which is close to the axle center.

More preferably, the grinding mechanism further comprises:

The rotating piece is arranged on one side of the first base, which is away from the rotor, and is in threaded connection with the first cutterhead;

one end of the first cutterhead is in clearance arrangement with the second cutterhead, the other end of the first cutterhead is in threaded connection with the rotating piece, the rotating piece is in contact with one face, deviating from the rotor, of the first base, and when the rotating piece rotates, the first cutterhead slides along the first axial direction.

More preferably, the grinding mechanism further comprises:

the ion generating device is arranged in the first base, a first through hole is formed in the first base, one end of the first through hole is connected with the ion generating device, and the other end of the first through hole is communicated with the first material channel.

More preferably, the grinding mechanism further comprises:

the controller is electrically connected with the brushless motor and monitors the change of the current of the brushless motor;

and the semiconductor refrigerating sheet is arranged between the first cutter disc and the first base and is attached to the first cutter disc, and when the working current of the brushless motor is greater than a preset threshold value, the semiconductor refrigerating sheet is started to cool the first cutter disc.

More preferably, when viewed along the first axial direction, one surface of the first cutterhead, which is close to the second cutterhead, is an outer surface, and a blade is formed on the outer surface;

One surface of the second cutterhead, which is close to the first cutterhead, is an inner surface, and a blade is formed on the inner surface; the abrasive region is located between the outer surface and the inner surface.

More preferably, the brushless motor drives the first cutter to rotate around the first axial direction, the rotor is connected with the first cutter disc, wherein,

the rotor includes:

the second induction part is arranged around the stator and is positioned at one side of the stator away from the first cutterhead when being observed along the first axial direction,

one end of the second connecting part is connected with the second sensing part, and the other end of the second connecting part extends towards one side close to the first cutterhead along the first radial direction;

the bearing bush is respectively connected with the other end of the second connecting part and the first cutterhead, and the second sensing part rotates under the electromagnetic force of the stator so as to drive the first cutterhead connected with the bearing bush to rotate relatively with the second cutterhead around the first axial direction;

the bearing bushing is formed with a second material passage therethrough, the second material passage being in communication with the grinding region.

A food grinding device comprises the grinding mechanism.

The utility model has the following beneficial effects:

accurate feeding: since the first material passage is located in the center of the brushless motor, the food material can directly enter the grinding area from the center of the motor. This has guaranteed the accurate feed of material, has avoided skew and extravagant, has improved accuracy and efficiency of grinding.

High-efficiency grinding force: the large diameter outer rotor of the brushless motor has high torque and moment of inertia, so that the brushless motor can provide larger grinding force. And because the first material channel is located the central point of motor, the power that the material can more fully utilize the motor grinds to accelerate grinding speed, improve the efficiency of grinding.

Energy and electricity are saved: the first material channel is located in the center of the brushless motor, and the material does not need to pass through a complex conveying device or a speed reducer. The energy loss in the energy transmission process is reduced, the energy utilization efficiency is improved, meanwhile, the power consumption of equipment operation is reduced, and energy conservation and electricity saving are realized.

The structure is simplified: the first material channel is located at the center of the brushless motor, so that the feeding and conveying device of materials is simplified. The structural design reduces the number and complexity of the components of the equipment, and reduces the manufacturing cost and maintenance difficulty of the product.

Stability enhancement: since the first material passage is located at the center of the motor, the material supply in the grinding area is more uniform and stable. This helps to reduce problems of material build-up and excessive wear, thereby extending the service life of the apparatus.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a first cutterhead and a second cutterhead in accordance with an embodiment of the present utility model;

fig. 2 is a front view of a first cutterhead and a second cutterhead according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2, wherein arrows indicate the flow direction of the material;

FIG. 4 is a schematic perspective view of a polishing mechanism according to an embodiment of the present utility model;

FIG. 5 is an exploded view of the polishing mechanism according to the embodiment of the present utility model;

FIG. 6 is another exploded view of the grinding mechanism according to the embodiment of the utility model;

FIG. 7 is a top view of a polishing mechanism according to an embodiment of the present utility model;

FIG. 8 is a side view of a grinding mechanism according to an embodiment of the utility model;

FIG. 9 is a schematic cross-sectional view taken at B-B of FIG. 7;

FIG. 10 is a schematic cross-sectional view at C-C of FIG. 7, wherein arrows indicate the direction of flow of the gas;

FIG. 11 is a schematic perspective view of a polishing mechanism according to a second embodiment of the present utility model;

FIG. 12 is an exploded view of a polishing mechanism according to a second embodiment of the present utility model;

FIG. 13 is another exploded view of a grinding mechanism according to a second embodiment of the utility model;

FIG. 14 is a side view of a grinding mechanism according to a second embodiment of the utility model;

FIG. 15 is a bottom view of a grinding mechanism according to a second embodiment of the utility model;

FIG. 16 is a schematic cross-sectional view taken at D-D of FIG. 15;

FIG. 17 is a schematic cross-sectional view taken along line E-E of FIG. 15;

FIG. 18 is a schematic cross-sectional view taken along line F-F of FIG. 15;

FIG. 19 is an exploded view of a food milling apparatus according to an embodiment of the present utility model;

reference numerals illustrate: 100. a grinding mechanism; 10. a first cutterhead; f1, a first axial direction; f2, a first radial direction; 20. the second cutterhead; 40. a grinding region; 30. a brushless motor; 41. an outer surface; 42. a blade; 43. an inner surface; 50. a stator; 60. a rotor; 61. a first sensing part; 62. a first connection portion; 63. a fan blade; 71. a first base; 72. a first material passageway; 73. an ion generating device; 74. a first through hole; 75. a controller; 76. a semiconductor refrigeration sheet; 64. a second sensing part; 65. a second connecting portion; 66. a bearing bush; 67. a second material passageway; 200. a food grinding device; 80. a rotating member; 91. an upper body; 92. a lower body; 93. a feed inlet; 94. a discharge port; 95. a feed hopper; 96. a lower base; 97. a food container; l1, an axle center.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1-19, an embodiment of the present utility model provides a grinding mechanism 100, and referring to fig. 19, the grinding mechanism 100 is applied to a food grinding apparatus 200, and the food grinding apparatus 200 may be a coffee bean grinder or an automatic coffee machine including a coffee bean grinder. Technical details and technical effects of the grinding mechanism 100 will be explained below in connection with the application scenario of the coffee bean grinder.

Specifically, the grinding mechanism 100 includes: a first cutterhead 10, a second cutterhead 20 and a brushless motor 30. The axial center L1 of the first cutterhead 10 extends along the first axial direction F1. The second cutterhead 20 surrounds the first cutterhead 10 and is disposed in spaced relation to the first cutterhead 10 to form a grinding zone 40. The brushless motor 30 drives either the first cutter head 10 or the second cutter head 20 to rotate around the first axial direction F1, and the material passing through the grinding area 40 is ground by the first cutter head 10 and the second cutter head 20 which are relatively rotated.

Wherein, by providing a first cutterhead 10 extending along a first axial direction F1, and a second cutterhead 20 surrounding the first cutterhead 10 and arranged at intervals with the first cutterhead 10; the ground food enters the grinding mechanism 100 from the grinding area 40 between the two cutterheads and is ground in the grinding area 40, the ground food powder flows out from the grinding area 40 between the two cutterheads, the grinding area 40 corresponds to the grinding area 40, and since the grinding area 40 is positioned between the two cutterheads, either the first cutterhead 10 or the second cutterhead 20 can be directly driven to rotate around the first axial direction F1 through the brushless motor 30, the materials passing through the grinding area 40 are ground by the first cutterhead 10 and the second cutterhead 20 which relatively rotate, and since the brushless motor 30 directly drives the cutterheads, a speed reducer is not needed, and since the intermediate parts are omitted, the grinding power transmission efficiency is improved, and the noise and the assembly complexity of the product are reduced.

The first axial direction is an axial direction of the brushless motor, and the first radial direction is any direction perpendicular to the first axial direction. The first axial direction described in this embodiment corresponds to a description of the positional relationship and the connection relationship of the members in the radial direction.

Wherein the design and arrangement of the first and second cutterheads 10, 20 may be optimized for the characteristics of the coffee beans and the desired grinding effect. Typically, the first cutterhead 10 has a relatively large diameter and a suitable blade shape in order to effectively pulverize the beans. The second cutterhead 20 is closely wrapped around the first cutterhead 10 and the grinding zone 40 between the second cutterhead 10 controls the degree of grinding required.

The brushless motor 30 is used as a driving force source of the grinding mechanism 100 to power the first cutterhead 10 or the second cutterhead 20 so as to rotate around the first axial direction F1. Brushless motor 30 may be selected with consideration of the desired grinding force and speed. By adjusting the rotational speed and power of the brushless motor 30, different degrees of coffee bean grinding can be achieved to meet the user's demands for different coffee tastes and fineness of powder.

Wherein, brushless control brushless motor 30 is adopted for brushless motor 30, and no additional decelerator is required, thereby improving the transmission efficiency of grinding power. In addition, since the brushless motor 30 has a low noise level, the grinding mechanism 100 can reduce noise generation during operation, and enhance the user experience.

Thus, the grinding mechanism 100 can grind coffee beans into a desired powder with high efficiency. By the relative rotation of the first cutter head 10 and the second cutter head 20, the coffee beans are ground and pulverized in the grinding zone 40, resulting in the desired fineness of powder.

Specifically, the first base 71 is formed with a first material passage 72 therethrough, and the first material passage 72 communicates with the grinding area 40.

Wherein the first material passage 72 extends through the entire first base 71, and is capable of guiding food material from the feed opening 93 into the grinding zone 40, thereby achieving efficient feeding and distribution of the material. This helps ensure uniform distribution of the food material within the grinding zone 40, avoids localized overpolishing or non-grinding conditions, and improves grinding uniformity and consistency.

Wherein, because the first material channel 72 is communicated with the grinding area 40, dust and scraps generated in the food grinding process can be smoothly discharged through the channel, so that the dust and scraps are prevented from being accumulated in the grinding area 40 and the cutter head gap. At the same time, the air flow in the channel can also play a role in cooling, effectively taking away the heat in the grinding area 40, and maintaining the stable operation and long-time working reliability of the equipment.

Wherein, since the first material passage 72 extends through the entire first base 71, residual materials and chips generated during the grinding process of the food can be easily removed from the passage, facilitating the cleaning and maintenance of the apparatus. This helps to maintain the sanitary performance and operating efficiency of the device while extending the service life of the device.

Specifically, the first material passage 72 is located at a center position of the brushless motor 30.

Wherein, since the first material passageway 72 is centrally located in the brushless motor 30, food material can pass directly from the center of the motor into the grinding zone 40. The arrangement ensures accurate feeding of materials, avoids offset and waste, and improves grinding accuracy and efficiency.

Wherein, since the food material enters the grinding area 40 at the center of the motor, the high torque and moment of inertia of the large diameter outer rotor 60 of the brushless motor 30 can be fully utilized, thereby obtaining higher grinding force. This helps to grind food material more quickly and evenly, improving efficiency and quality of grinding.

Wherein, since the material directly enters the grinding zone 40 from the center of the motor, no complicated conveying device or decelerator is required. The energy loss in the energy transmission process is reduced, the energy utilization efficiency is improved, and meanwhile, the power consumption of equipment operation is reduced.

Wherein, food material directly gets into grinding area 40 from the motor center, need not extra material conveyor, has simplified the structure and the equipment of equipment, has reduced the assembly complexity and the manufacturing cost of product.

Specifically, as viewed along the first axial direction F1, a surface of the first cutterhead 10 adjacent to the second cutterhead 20 is an outer surface 41, and the outer surface 41 is formed with a blade 42. The surface of the second cutterhead 20, which is close to the first cutterhead 10, is an inner surface 43, and the inner surface 43 is formed with a blade 42. The grinding zone 40 is located between the outer surface 41 and the inner surface 43 and material is ground by the inner surface 43 and the blades 42 of the outer surface 41 as it passes through the grinding zone 40.

Wherein the outer surface 41 on the first cutterhead 10 and the inner surface 43 on the second cutterhead 20 have blades 42, and the grinding area 40 between them is the area where the coffee beans enter and are ground. As the beans pass this grinding zone 40, the blades 42 of the inner surface 43 and the outer surface 41 grind them into fine particles or powder. The shape and sharpness of the blade 42 and the size of the grinding area 40 can be adjusted according to the desired degree of grinding and fineness of powder.

Thus, as the beans pass through the grinding zone 40, the blades 42 of the inner surface 43 and the outer surface 41 grind them, thus obtaining the desired coffee powder. The sharpness of the blade 42 and the control of the grinding area 40 ensure uniformity and consistency of grinding, resulting in a high quality coffee powder. By adjusting the shape of the blade 42 and the size of the grinding area 40, different degrees of grinding can be selected depending on the user's preference and coffee type. Different grinding levels affect the taste, strength and mouthfeel of the coffee, and thus can meet the needs of users for different tasting coffee.

Specifically, the brushless motor 30 includes: stator 50, rotor 60. Viewed along the first axial direction F1, the stator 50 is disposed around the second cutterhead 20 and is located on a side of the second cutterhead 20 facing away from the first cutterhead 10. The rotor 60 is driven to rotate by electromagnetic force of the stator 50 and is connected to either the first cutterhead 10 or the second cutterhead 20 to drive either the first cutterhead 10 or the second cutterhead 20 to rotate.

Wherein the circumferential arrangement of the stator 50 ensures the stability and supporting force of the brushless motor 30 so that the rotor 60 can smoothly rotate under the electromagnetic force. The connection of the rotor 60 with the first cutterhead 10 or the second cutterhead 20 enables the rotation of the brushless motor 30 to be directly transmitted to the cutterhead, and the purpose of grinding is achieved. With this design, brushless motor 30 is able to provide sufficient rotational force and torque to meet the power requirements of the milling process. At the same time, the brushless motor 30 is positioned and connected in such a way that the cutterhead can obtain a sufficient driving force, thereby ensuring the grinding effect and accuracy.

Specifically, either direction perpendicular to the first axial direction F1 is denoted as a first radial direction F2, the first material passage 72 is located on a side of the stator 50 near the axial center L1 as viewed along the first radial direction F2,

Wherein, by arranging the first material passage 72 on the side of the stator 50 close to the axis L1, the space inside the apparatus can be utilized better. Such an arrangement facilitates compact arrangement of the various components of the grinding mechanism 100, making the overall apparatus more compact and efficient.

Because the first material channel 72 is located on the side of the stator 50 near the axis L1, the material will be closer to the axis L1 during the grinding process, so that the friction heat and abrasion generated during the grinding process can be reduced. Meanwhile, the materials are ground at a position closer to the axis L1, so that the influence on heat conduction and abrasion of the whole equipment can be reduced, and the service life and stability of the equipment can be improved.

Wherein the placement of the first material passageway 72 on the side of the stator 50 proximate the axis L1 helps optimize the flow and distribution of material in the grinding mechanism 100. Therefore, a more uniform grinding effect can be realized, and the grinding precision and consistency are improved, so that a better grinding result is obtained.

In this embodiment, the brushless motor 30 drives the second cutterhead 20 to rotate around the first axial direction F1, and the rotor 60 is connected to the second cutterhead 20, wherein the rotor 60 includes: a first sensing part 61, a first connecting part 62, and a fan blade 63. The first sensing portion 61 is disposed around the stator 50, and is located at a side of the stator 50 facing away from the second cutterhead 20, as viewed along the first axial direction F1. The first connecting portion 62 is connected to the first sensing portion 61 and to the second cutterhead 20. The first sensing portion 61 rotates around the first axial direction F1 under the electromagnetic force of the stator 50 to drive the second cutterhead 20 connected to the first connecting portion 62 to rotate around the first axial direction F1 and the first cutterhead 10.

Wherein the first sensing portion 61 is disposed around such that it can rotate by electromagnetic force of the stator 50. The rotational force of the first sensing portion 61 is transmitted to the second cutterhead 20 by the connection with the first connecting portion 62, so that it relatively rotates in the first axial direction F1. Meanwhile, the fan blades 63 on the rotor 60 can generate air flow through rotation, so that the first cutterhead 10 can be cooled by air cooling, and the grinding efficiency and accuracy are further improved.

Thus, the brushless motor 30 can effectively drive the second cutterhead 20 to perform the lapping operation. The force and torque generated by the rotation of the first sensing portion 61 are transmitted to the second cutterhead 20 through the first connecting portion 62, so that it can perform rotary grinding. The action of the fan blades 63 also provides additional airflow to help expel powder generated during the milling process and keep the cutterhead and milling area 40 clean.

Meanwhile, the rotor 60 is compact in structure and reliable in connection manner, so that the grinding mechanism 100 has good durability and reliability. This design has potential for wide application in food grinding devices 200 such as coffee bean grinders and can meet the user's demand for a high quality grinding experience.

Specifically, the first material passage 72 is located on a side of the rotor 60 near the shaft center L1, as viewed in the first radial direction F2.

In this case, since the rotor 60 is directly connected to the first cutterhead 10 or the second cutterhead 20, a complex structure of a conventional transmission device (such as a decelerator) is omitted, thereby reducing energy conversion loss. The direct connection design improves the efficiency of power transfer, making the power output of the grinding mechanism 100 more efficient, thereby improving the grinding performance of the overall apparatus.

The rotor 60 and the cutterhead are directly connected to realize high-precision concentric rotation, and stable rotation of the cutterhead can be ensured due to stability and precision manufacturing of the rotor 60, so that a more accurate and stable grinding process is realized. This helps to improve the consistency and uniformity of grinding, ensuring the stability of the quality of the ground material powder.

Wherein the direct connection design reduces the number of components and structural complexity of the grinding mechanism 100, thereby saving space and making the overall food grinding apparatus 200 more compact. In addition, reducing the transmission components also reduces noise and vibration, providing a lower noise level grinding experience.

Specifically, the fan blade 63 is disposed between the first connecting portion 62 and the first sensing portion 61, and when the first sensing portion 61 rotates, the fan blade 63 is driven to rotate synchronously, so as to draw in an external air flow for cooling the first cutterhead 10 and the second cutterhead 20.

Wherein by rotating the fan blades 63, outside air is sucked into the inside of the grinding mechanism 100 and then pushed to the areas of the first cutter head 10 and the second cutter head 20 by the rotation of the fan blades 63. This air flow can effectively cool the cutterhead, preventing overheating and damage. At the same time, it also removes heat and powder generated during the milling process, maintains the temperature of the milling zone 40 at a suitable level, and reduces the accumulation of powder around the cutterhead.

Among other things, this design can effectively improve the durability and performance stability of the grinding mechanism 100 by utilizing an external air flow for cooling. It can prevent damage caused by overheating and reduce heat accumulation during grinding, thereby improving grinding efficiency and quality. In addition, by maintaining a suitable temperature and clean grinding area 40, powder adhesion and accumulation may also be reduced, improving the reliability and service life of grinding mechanism 100.

Thus, the arrangement of the fan blades 63 and the cooling with the external air flow have the effect of providing a good temperature control and powder discharge mechanism of the grinding mechanism 100. It ensures stable grinding performance and high quality grinding results while increasing the reliability and service life of the grinding mechanism 100.

Specifically, the grinding mechanism 100 further includes: a first base 71. The first base 71 is fixed to the first cutterhead 10, and the first base 71 is spaced from the rotor 60 in the first axial direction F1. The first base 71 has a first material passage 72 formed therethrough. The first material passage 72 communicates with the grinding area 40, and an external air flow drawn in when the fan blade 63 rotates passes through the first material passage 72.

Wherein the first material passage 72 penetrates the first base 71 and is connected to the polishing area 40. As the fan blade 63 rotates, it induces an external air flow and directs it into the grinding mechanism 100 through the first material passageway 72.

Wherein the provision of the first material passageway 72 helps to maintain stability and performance consistency of the grinding mechanism 100. It ensures proper air flow circulation and temperature control to avoid uneven heating or temperature gradient generation during grinding, thereby improving consistency and quality of grinding results.

Thus, the presence of the first material passageway 72 may effectively cool the grinding mechanism 100 and expel heat and powder, providing a stable grinding environment and a high quality grinding effect. It helps to maintain the proper temperature of the cutterhead, reduces powder build-up, and improves the performance and life of the grinding mechanism 100.

Specifically, the first material channel 72 is located at a side of the first connecting portion 62 near the axis L1, as viewed along the first radial direction F2.

Because the first material channel 72 is located at a side of the first connecting portion 62 near the axis L1, when the rotor 60 is in operation, the rotation of the rotor 60 drives the air in the channel to flow. Such air flow may act as a cooling effect, effectively reducing the temperature of the first connection 62 and cutterhead, especially under high load conditions. Optimization of the cooling effect helps to prevent overheating of the equipment and to extend the useful life of the cutterhead.

Among them, during the grinding of food products, a lot of dust and scraps are generated, especially in the case of high-speed grinding. Because the first material channel 72 is located on the side of the first connecting portion 62 near the axis L1, the air flow driven by the rotor 60 during rotation can promote the dust and the debris to be discharged from the clearance of the cutterhead, so that the dust and the debris are prevented from accumulating in the clearance, and the grinding efficiency and the grinding precision are maintained.

Wherein, through optimizing the design position of passageway for food powder after grinding can flow out the blade disc clearance more smoothly, thereby improves the efficiency of ejection of compact. Therefore, the residue of food powder between the cutterheads can be reduced, and the high-efficiency operation and stability of the equipment are ensured.

Specifically, the grinding mechanism 100 further includes: a rotating member 80. The rotary member 80 is disposed on a side of the first base 71 facing away from the rotor 60, and is screwed with the first cutterhead 10. One end of the first cutterhead 10 is disposed in a gap with the second cutterhead 20, the other end of the first cutterhead 10 is in threaded connection with the rotating member 80, the rotating member 80 contacts with one surface of the first base 71, which is away from the rotor 60, and when the rotating member 80 rotates, the first cutterhead 10 slides along the first axial direction F1.

Wherein the size of the grinding zone 40 between the first cutterhead 10 and the second cutterhead 20 can be varied by adjusting the sliding position of the rotating member 80. Smaller grinding areas 40 may produce finer grinding results suitable for grinding tasks requiring high precision. The larger grinding area 40 can obtain larger grinding effect, and is suitable for tasks with low requirements on grinding precision. By sliding adjustment of the distance of the grinding zone 40, fine control of the grinding accuracy can be achieved.

Wherein, the grinding requirements of different materials are different. Some materials may require finer grinding, while others may employ coarser grinding. By sliding adjustment of the grinding zone 40, adjustments can be made to the characteristics and requirements of the different materials to achieve optimal grinding results and accuracy.

Wherein, as the usage time increases, the first cutterhead 10 and the second cutterhead 20 may wear. By slidably adjusting the grinding zone 40, wear of the cutterhead can be compensated to some extent to maintain stable grinding accuracy and effectiveness.

Thus, fine adjustment and control of the grinding precision can be achieved by slidably adjusting the distance of the grinding area 40 between the first cutterhead 10 and the second cutterhead 20, so as to adapt to different materials and grinding requirements. This provides convenience and flexibility in achieving accurate and customizable grinding results.

Specifically, the grinding mechanism 100 further includes: ion generating device 73. The ion generating device 73 is disposed in the first base 71, and a first through hole 74 is formed in the first base 71, one end of the first through hole 74 is connected to the ion generating device 73, and the other end is connected to the first material channel 72.

Wherein the ion generating device 73 charges molecules in the air by generating ionized air. These charged gas molecules may enter the first material passageway 72 through the first through-hole 74. First, charged air is generated by the ion generating device 73, so that food powder particles generated during grinding can be charged. For example, the powder particles may be negatively charged. Next, in the first material channel 72, the charged powder particles interact with the electric field in the grinding zone 40 between the first cutterhead 10 and the second cutterhead 20. As the particles become charged, they are subjected to the force of the electric field and are repelled from the area of the abrasive area 40, reducing the likelihood of powder build-up on the cutterhead surface.

In addition, the food powder produced during the grinding process may be electrostatically charged, causing the powder to collect on the cutterhead or other parts of the grinding mechanism 100. By using the ion generating device 73, it is possible to help neutralize these static electricity, reduce the aggregation and accumulation of powder, and thereby maintain the clean and efficient operation of the grinding mechanism 100.

Thus, the presence of the ion generating device 73 can change the charge state of the powder particles, repel the powder particles out of the region of the grinding region 40 by the action of the electric field force, reduce the accumulation and aggregation of the powder, and improve the grinding effect and reliability. At the same time, it helps to reduce problems with static electricity, keep the grinding mechanism 100 clean, and improve overall performance and ease of operation.

Specifically, the grinding mechanism 100 further includes: a controller 75, and a semiconductor refrigeration sheet 76. A controller 75 is electrically connected to the brushless motor 30 and monitors the change in current of the brushless motor 30. The semiconductor cooling plate 76 is disposed between the first cutterhead 10 and the first base 71 and is attached to the first cutterhead 10, and when the working current of the brushless motor 30 is greater than a preset threshold value, the semiconductor cooling plate 76 is started to cool the first cutterhead 10.

Wherein friction and heat generated during the grinding process may cause the operating current of brushless motor 30 to exceed a set threshold, excessive temperatures may adversely affect the performance and lifetime of grinding mechanism 100. Therefore, by activating the semiconductor cooling fin 76, the temperature of the first cutterhead 10 can be reduced in time, and the operating temperature of the grinding mechanism 100 can be effectively controlled, so that the grinding mechanism can operate in a proper temperature range.

The semiconductor cooling fin 76 is a compact and efficient cooling device, and can provide effective cooling effect in a local area. By disposing the semiconductor cooling fin 76 between the first cutterhead 10 and the first base 71 and closely adhering to the first cutterhead 10, direct cooling of the first cutterhead 10 can be achieved. The local refrigeration mode can effectively reduce the temperature of the cutterhead and improve the grinding efficiency and accuracy.

Therefore, the controller 75 monitors the current of the brushless motor 30 and starts the semiconductor refrigerating sheet 76 to cool the first cutterhead 10, so that the working temperature of the grinding mechanism 100 can be effectively controlled, and the performance and the service life of the grinding mechanism can be improved. The use of such a refrigeration system helps to maintain the grinding mechanism 100 within a desired operating temperature range, ensuring the stability and reliability of the grinding process.

A food grinding apparatus 200 in this embodiment includes the above-described grinding mechanism 100, and further includes: the upper body 91 and the lower body 92, and the polishing mechanism 100 is provided between the upper body 91 and the lower body 92. The upper body 91 is provided with a feed port 93 in communication with the grinding zone 40 between the first cutterhead 10 and the second cutterhead 20. The lower body 92 is provided with a discharge port 94 in communication with the grinding zone 40 between the first cutterhead 10 and the second cutterhead 20, and in the first embodiment, the discharge port 94 is in communication with the first material passageway 72.

Wherein the upper body 91 is provided with a feed opening 93 for feeding the food material to be ground into the grinding mechanism 100. The feed port 93 communicates with the grinding zone 40 between the first cutterhead 10 and the second cutterhead 20 to facilitate the user to place the food material into the grinding mechanism 100 so that it can smoothly enter the grinding zone 40 for processing.

Wherein the lower body 92 is provided with a discharge opening 94 communicating with the grinding zone 40 between the first cutterhead 10 and the second cutterhead 20. So that the ground food material can smoothly flow out of the grinding area 40 and be discharged through the discharge port 94. In addition, in this embodiment, the discharge port 94 is in communication with the first material passage 72, which means that the ground food material can directly enter the first material passage 72 through the discharge port 94, so as to facilitate subsequent processing or collection.

Thus, the food grinding apparatus 200 achieves a smooth flow of the material in and out through the inlet 93 of the upper body 91 and the outlet 94 of the lower body 92, so that the food material can be effectively processed and ground in the grinding mechanism 100.

Specifically, the food grinding apparatus 200 further includes: food container 97, feeder hopper 95 and lower base 96, feeder hopper 95 set up in the discharge gate 94 and deviate from the side of fuselage 92 down, and the material passes through feeder hopper 95 and gets into grinding area 40. A lower base 96 is formed at a side of the lower body 92 facing away from the upper body 91, and a food container 97 is placed on the lower base 96 to collect ground material powder output from the discharge port 94.

Wherein a feed hopper 95 is positioned on a side of the discharge opening 94 facing away from the lower body 92 for directing material into the grinding zone 40. The user may place the food material to be ground into the hopper 95 and the material may then enter the grinding area 40 through the hopper 95 and grind with the first cutterhead 10 and the second cutterhead 20. The design of the feed hopper 95 makes the feeding of the material more convenient, and simultaneously can control the flow direction and the entering speed of the material so as to ensure the smooth proceeding of the grinding process.

Wherein the lower base 96 is located at a side of the lower body 92 facing away from the upper body 91 for placing the food container 97 to collect the ground material powder output from the outlet 94. During grinding, material flows from the grinding zone 40 and exits through the discharge port 94 and is then collected in the food container 97 on the lower base 96. The purpose of the lower base 96 is to provide a stable support platform so that the food container 97 can be placed in a proper position and to facilitate the collection of the ground material powder by the user.

Thus, by the design of the feed hopper 95 and the lower base 96, the food grinding apparatus 200 achieves convenience and efficiency of the material feeding and collecting process. The hopper 95 directs the material into the grinding zone 40 so that the grinding process proceeds smoothly, while the lower base 96 provides a suitable platform for the user to conveniently collect and dispose of the ground material powder. The method provides convenience for operation and effective collection of grinding results for users, and enhances the practicability and user experience of the equipment.

Example two

The second embodiment is different from the first embodiment in that the brushless motor 30 drives the first cutterhead 10 to rotate around the first axial direction F1, and the rotor 60 is connected to the first cutterhead 10.

Specifically, the rotor 60 described with reference to fig. 11 to 18 includes: a second sensing part 64, a second connecting part 65, and a bearing bush 66. The second sensing portion 64 is disposed around the stator 50, and is located on a side of the stator 50 facing away from the first cutterhead 10, as viewed along the first axial direction F1. And a second connecting portion 65, one end of which is connected to the second sensing portion 64, and the other end of which extends along the first radial direction toward a side close to the first cutterhead 10, wherein the first radial direction is any direction perpendicular to the first axial direction F1. The bearing bush 66 is connected to the other end of the second connecting portion 65 and the first cutterhead 10, and the second sensing portion 64 rotates under the electromagnetic force of the stator 50 to drive the first cutterhead 10 connected to the bearing bush 66 to rotate relatively to the second cutterhead 20 around the first axial direction F1.

Wherein the rotation of the second sensing part 64 is driven by the electromagnetic force of the stator 50, thereby achieving brushless control of the brushless motor 30. Such brushless control brushless motor 30 has advantages of high efficiency, low noise, low friction, and the like, and provides a reliable power source.

Second, during milling, the material is first milled by the first cutterhead 10 and the second cutterhead 20 through the milling zone 40. Once the material is ground, it flows to the surrounding area of the grinding zone 40. The ground material may then enter the bearing bushing 66 due to gravity or other auxiliary means. The bearing bush 66 is located between the first cutterhead 10 and the second cutterhead 20 and is connected to one end of the second connection 65. As the material enters the bearing cartridge 66, it is directed to the outlet of the bearing cartridge 66 and out of the grinding mechanism 100.

Thus, the rotation of the second sensing portion 64 drives the first cutterhead 10 connected to the bearing bush 66 to rotate relative to the second cutterhead 20 about the first axial direction F1, and efficient operation of the grinding mechanism 100 is achieved. The structural design can provide a stable and efficient grinding process, ensure that materials are uniformly ground and treated, and achieve the expected grinding effect.

Specifically, the bearing bush 66 is formed with a second material passage 67 therethrough, and the second material passage 67 communicates with the grinding region 40. In the grinding mechanism 100, the bearing bushing 66 serves to guide the flow of the ground material. Specifically, through the second material passageway 67, the ground material may smoothly flow from the grinding region 40 to the bearing bushing 66 and eventually exit the grinding mechanism 100 through the outlet of the bearing bushing 66 to ensure that the ground material can be effectively collected and discharged for further processing or use. The presence of the bearing bushing 66 allows for smoother material flow, avoids clogging and accumulation, and improves the efficiency of the overall grinding process.

Whereby by providing a first cutterhead 10 extending in a first axial direction F1 and a second cutterhead 20 surrounding said first cutterhead 10 and arranged in a gap with said first cutterhead 10; the ground food enters the grinding mechanism 100 from the grinding area 40 between the two cutterheads and is ground in the grinding area 40, the ground food powder flows out from the grinding area 40 between the two cutterheads, the grinding area 40 corresponds to the grinding area 40, and since the grinding area 40 is positioned between the two cutterheads, either the first cutterhead 10 or the second cutterhead 20 can be directly driven to rotate around the first axial direction F1 through the brushless motor 30, the materials passing through the grinding area 40 are ground by the first cutterhead 10 and the second cutterhead 20 which relatively rotate, and since the brushless motor 30 directly drives the cutterheads, a speed reducer is not needed, and since the intermediate parts are omitted, the grinding power transmission efficiency is improved, and the noise and the assembly complexity of the product are reduced.

The above embodiments represent only a few embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model, which are within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A grinding mechanism, the grinding mechanism comprising:

the axle center of the first cutterhead extends along a first axial direction;

2. The grinding mechanism of claim 1, wherein the brushless motor comprises:

3. The grinding mechanism of claim 2, wherein the brushless motor further comprises:

4. The grinding mechanism of claim 3, wherein said brushless motor drives said second cutter to rotate about said first axis, said rotor being coupled to said second cutterhead, wherein,

the rotor includes:

5. The grinding mechanism of claim 4, further comprising:

6. The grinding mechanism of claim 5, further comprising:

7. The grinding mechanism of claim 6, further comprising:

8. The grinding mechanism of claim 1, wherein a face of the first cutterhead adjacent to the second cutterhead, viewed in the first axial direction, is an outer face, and the outer face is formed with a blade;

9. The grinding mechanism of claim 3, wherein said brushless motor drives said first cutter to rotate about said first axis, said rotor being coupled to said first cutterhead, wherein,

the rotor includes:

10. A food grinding apparatus comprising a grinding mechanism as claimed in any one of claims 1 to 9.