A shredder blade for a food processing machine

Abstract

This utility model belongs to the technical field of food processing equipment, specifically relating to a pulverizing blade for a food processing machine. This utility model provides a pulverizing blade for a food processing machine, comprising a circular blade disc and multiple blades evenly arranged along the outer circumference of the blade disc. Multiple circulation holes are provided through the blade disc. The outer diameter R1 of the blade disc and the maximum rotational diameter R2 of the blades satisfy: 0.33≤R1 / R2≤0.51. The pulverizing blade provided by this utility model allows the vibrations of the multiple blades to cancel each other out during transmission along the blade disc, reducing noise. The water flow tumbles at the circulation holes, creating a turbulent effect that drives the material to circulate and achieves circulating pulverization, improving pulverization efficiency. Furthermore, satisfying 0.33≤R1 / R2≤0.51 ensures that the amount of pulverized soybean residue is less than 6% and the pulverization noise can be controlled below 68dB, achieving both improved pulverization efficiency and controlled pulverization noise.

Description

Technical Field

[0001] This utility model belongs to the technical field of food processing equipment, specifically relating to a shredder for a food processing machine. Background Technology

[0002] During our research on food processing machines, we discovered that most food processing machines, after filtering soybean milk through a 50-mesh filter, typically retain over 6% of soybean residue (the weight of the uncooked soybean residue after grinding / the weight of the dry soybeans before grinding), resulting in a grainy texture for the user. To improve the taste of soy milk, existing technologies typically employ methods such as increasing the sharpness of the grinding blades, lengthening the blade edges or teeth, or increasing the motor speed. However, if the pulverizing blades are too sharp, they may become dull, and the pulverizing effect will decrease after repeated use. If the blades or teeth of the pulverizing blades are lengthened, there is a risk of vibration superposition during the rotation of the blades, resulting in poor rotational stability and increased noise. Similarly, when the motor speed is increased, the noise from the high-speed rotating blades colliding with the materials is still significant. In some soy milk makers, the noise level is usually above 75 dB, and in some high-speed blenders, it can reach as high as 80 dB. Even if some high-speed blenders use soundproof covers to block noise, the noise can only be reduced to about 75 dB, which is still quite loud and bothersome to users. The applicant's research found that if the pulverizing noise of a food processor is below 68 dB, it is relatively acceptable to users.

[0003] The invention patent with announcement number CN101849649A discloses a ring blade soy milk maker. The blade is ring-shaped and consists of a circular ring body and blades. The center of the blade has a longitudinal through-hole, and the edge of the blade is provided with a sharp edge. The blades are connected to each other, and their outer edges are connected to the ring body, which can solve the problem of hand injury during the user's cleaning process. During the research process, the applicant found that this type of blade also has the effect of low vibration and low noise during operation.

[0004] However, the pulverizing principle of this scheme is to slow down the water flow as it passes through the blades, and to allow most of the material to pass through the blades, thus creating turbulence and directly pulverizing the material within the blades. However, during the pulverizing process, while the blades slow down and turbulent the water flow, they also reduce the impact force between the blades and the material, resulting in a lower pulverizing rate. Furthermore, because the circular ring is connected to the edge of the blades, during blade rotation, some material is pushed forward by the ring, preventing it from directly impacting the blade tip. This further reduces the probability of material contact with the tip, leading to decreased pulverizing efficiency, poor pulverizing effect, and the resulting soy milk still having a grainy texture.

[0005] Therefore, existing technologies cannot simultaneously guarantee taste while reducing noise. How to improve grinding efficiency without increasing grinding noise has always been a key technical challenge that those skilled in the art have sought to address. Utility Model Content

[0006] This invention provides a pulverizing blade for a food processing machine to solve the problem of pulverizing noise while improving pulverizing efficiency.

[0007] The technical solution adopted by this utility model is as follows: This utility model provides a pulverizing blade for a food processing machine, including a circular blade disc and a plurality of blades evenly arranged along the outer periphery of the blade disc. The blade disc is provided with a plurality of circulation holes. The outer diameter R1 of the blade disc and the maximum rotation diameter R2 of the blades satisfy: 0.33≤R1 / R2≤0.51.

[0008] The pulverizer provided by this utility model includes a circular cutter disc and multiple blades evenly arranged along the outer circumference of the disc. By using a circular cutter disc, the blades vibrate during the rotational cutting of materials. The vibration of each blade can be transmitted along the disc, and the vibrations of multiple blades can cancel each other out during transmission, improving the rotational stability of the pulverizer. The overall amplitude of the pulverizer is reduced, and noise is lowered when pulverizing materials. Because multiple blades are evenly arranged along the outer circumference of the disc, the rotating blades can directly impact and pulverize the materials without obstruction, increasing the probability of collision between the blades and the materials. This allows for rapid pulverization, improving pulverization efficiency and fineness, thus enhancing the pulverization effect. Multiple circulation holes are provided through the cutter disc. After the material is thrown outwards under the centrifugal force of the pulverizer and forms a central vortex, the presence of these circulation holes allows water to flow back to the central vortex during the rotation of the pulverizer. This breaks the centrifugal turbulence, and the water tumbles at the circulation holes, creating a turbulent flow that drives the material to circulate, achieving cyclic pulverization and improving pulverization efficiency. By setting the outer diameter R1 of the cutter disc and the maximum rotation diameter R2 of the blades to 0.33 ≤ R1 / R2 ≤ 0.51, when the maximum rotation diameter R2 of the blades is taken as a constant, the outer diameter R1 of the cutter disc is set to be in the 0.33-0.51 range of the longest blade. This avoids the problem of excessive noise caused by excessively long blades when the outer diameter of the cutter disc is too small, resulting in excessively large vibrations that are difficult to cancel out by the cutter disc. Simultaneously, it avoids the problem of a large ineffective pulverizing area on the inner side of the cutter disc when the outer diameter of the cutter disc is too large, while the effective pulverizing area is small due to the short blade length, resulting in low pulverizing efficiency, insufficient pulverization fineness, and poor overall pulverizing effect. Moreover, experimental verification shows that when R1 and R2 satisfy 0.33 ≤ R1 / R2 ≤ 0.51, the amount of pulverized soybean residue is less than 6%, the soy milk has a good taste, and the pulverizing noise can be controlled below 68dB, achieving both improved pulverizing efficiency and controlled pulverizing noise.

[0009] In a preferred embodiment, the cutter disc includes a ring body and a connecting body located inside the ring body. The cutter blade is connected to the outer ring wall of the ring body. The connecting body has a plurality of connecting portions extending toward the ring body. The connecting portions are connected to the inner ring wall of the ring body, and the circulation hole is defined between two adjacent connecting portions.

[0010] By configuring the cutter head as a ring and a connecting body, with the blades connected to the outer wall of the ring, the ring is used to counteract the vibration transmission of multiple blades, improving the rotational stability of the pulverizing blades and reducing amplitude and vibration noise. The connecting body is connected to the inner wall of the ring via a connecting part, giving the cutter head reliable structural strength. The circulation hole is defined between two adjacent connecting parts; therefore, the circulation hole also serves as a weight-reducing hole. Compared to a solid cutter head, the ring can reduce its own weight, which helps to reduce the drive load, thereby facilitating smooth rotation and reducing noise.

[0011] More preferably, the surface of the connecting portion is provided with an inclined cutting edge.

[0012] By setting an inclined blade on the surface of the connecting part, when the crusher rotates in the liquid, the inclined blade rotates to form a large gap, thereby creating a negative pressure and generating a suction force on the liquid flow, thus accelerating the flow speed of the liquid flow, allowing the water to flow and circulate rapidly along the circulation hole, and the material to collide with the blade quickly, thereby improving the crushing efficiency.

[0013] More preferably, the number of blades corresponds to the number of connecting parts, and each blade is located on the extension line of the corresponding connecting part.

[0014] On the one hand, the blades are located on the extension line of the corresponding connecting parts. Based on the use of the ring body to counteract the vibration of the blades, the vibration of multiple blades can also be transmitted to the center of the connecting body through the corresponding connecting parts. During the transmission process, the vibration is canceled out, realizing the stable rotation of the crushing blade and reducing the amplitude and vibration noise. On the other hand, the connecting parts can not only increase the strength of the connection between the ring body and the connecting body, but also strengthen the connection strength between the blades and the ring body, improve the overall strength of the crushing blade, and enhance its resistance to deformation.

[0015] More preferably, the blade and the connecting portion are arranged offset from each other along the circumference of the ring body.

[0016] By arranging the blades and connecting parts staggered along the circumference of the ring, and bringing the blades and circulation holes close together, the water flow through the circulation holes carries the material into rapid contact with the blades, achieving rapid pulverization.

[0017] More preferably, the width W of the connecting portion is ≥ 5mm. This increases the strength of the connection between the ring and the connecting body, enhancing their resistance to deformation.

[0018] In a preferred embodiment, the wall of the circulation hole is provided with protrusions for propelling water flow through the circulation hole. More preferably, the protrusions are bent relative to the cutter head surface; or, the protrusions are twisted into a spiral shape.

[0019] By setting protrusions on the wall of the circulation hole to push water through the circulation hole, the water flow to the circulation hole can be accelerated, the material circulation can be accelerated, and the crushing effect can be improved.

[0020] By bending the protrusions relative to the surface of the cutter disc, the protrusions can impact the material for crushing, thereby expanding the crushing area along the axial direction of the crusher blade, improving crushing efficiency, and making cleaning convenient; by twisting the protrusions into a spiral shape, the rotational resistance is small and the crushing noise is low.

[0021] In a preferred embodiment, the plurality of circulation holes are arranged in an array on the cutter head;

[0022] Alternatively, the plurality of circulation holes are densely arranged in multiple rings around the center of the cutter head;

[0023] Alternatively, the plurality of circulation holes are evenly arranged around the center of the cutter head.

[0024] Whether the multiple circulation holes are arranged in an array, densely arranged in multiple rings, or arranged around the center of the cutter head, the water flow can flow back to the central vortex through the circulation holes during the rotation of the crushing blade, breaking the centrifugal turbulence. The water flow rolls in the circulation holes to create a turbulence effect, driving the material to circulate and achieve circulating crushing, thus improving crushing efficiency.

[0025] In a preferred embodiment, the total area S1 of the circulation holes and the area S2 of the cutter head satisfy 0.25≤S1 / S2≤0.5.

[0026] The ratio 0.25 ≤ S1 / S2 ≤ 0.5 is maintained to avoid problems such as poor water circulation due to an excessively small total area of ​​the circulation holes and reduced cutter head strength due to an excessively large total area of ​​the circulation holes. Maintaining this ratio improves cutter head strength, enhances its resistance to deformation, and improves the material circulation and crushing effect.

[0027] In a preferred embodiment, the center of the cutter head is provided with a shaft hole for connecting with the cutter shaft; or, the center of the cutter head is provided with a connecting shaft.

[0028] By setting a shaft hole in the center of the cutter head, the cutter head and the cutter shaft are connected. In the food processing machine, reliable transmission is achieved by inserting the cutter shaft into the motor shaft, or the motor shaft can be directly used as the cutter shaft, and the cutter head can be directly fixed to the motor shaft to achieve reliable transmission. Alternatively, a connecting shaft can be set in the center of the cutter head, which can be directly connected to the motor shaft for transmission, eliminating the need for separate assembly and simplifying the structure. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0030] Figure 1 A schematic diagram of the planar structure of the shredder provided in Embodiment 1 of this utility model;

[0031] Figure 2 This is a diagram showing the test results in Embodiment 1 of this utility model;

[0032] Figure 3 This is a schematic diagram of the planar structure of the shredder provided in Embodiment 2 of this utility model;

[0033] Figure 4 This is a three-dimensional structural diagram of the shredder provided in Embodiment 2 of this utility model;

[0034] Figure 5 A cross-sectional structural diagram of the shredder provided in Embodiment 2 of this utility model;

[0035] Figure 6 This is a schematic diagram of the planar structure of the shredder provided in Embodiment 3 of this utility model;

[0036] Figure 7 This is a three-dimensional structural diagram of the shredder provided in Embodiment 3 of this utility model;

[0037] Figure 8 This is a schematic diagram of the planar structure of the shredder provided in Embodiment 4 of this utility model.

[0038] Explanation of reference numerals in the attached drawings: 10, cutter head; 11, ring body; 12, connecting body; 13, connecting part; 20, cutter blade; 30, circulation hole; 31, protrusion; 40, shaft hole; 14, cutting edge. Detailed Implementation

[0039] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0041] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Example 1

[0045] like Figure 1 As shown, this embodiment provides a shredder for a food processor, including a circular blade 10 and a plurality of blades 20 evenly arranged along the outer periphery of the blade 10. A plurality of circulation holes 30 are provided through the blade 10. The outer diameter R1 of the blade 10 and the maximum rotation diameter R2 of the blades 20 satisfy: 0.33≤R1 / R2≤0.51.

[0046] Preferably, the blade 20 is provided with a cutting edge or cutting teeth.

[0047] Furthermore, using the dry bean pulping program of a food processor, selecting 80g of dry beans to make 1200ml of soy milk, and based on the same pulping program and materials, comparative experiments were conducted using pulverizing blades with different outer diameters to achieve different R1 / R2 values. The noise levels during the experiment and the amount of soybean residue at the end of the experiment were calculated and compared. The amount of soybean residue was defined as: weight of uncooked soybean residue after pulverization / weight of dry beans before pulverization. The experimental results are as follows: Figure 2 As shown.

[0048] Combination Figure 1 , 2 Analysis shows that the vibration of each blade 20 can be transmitted along the cutter head 10. The vibrations of multiple blades 20 can cancel each other out during transmission along the cutter head 10, improving the rotational stability of the crusher. The overall crusher experiences reduced amplitude and noise when crushing materials. The vibration transmission path is referenced... Figure 1 The arrow in the diagram points in the direction of the noise level. Therefore, as R1 / R2 increases, the crushing noise gradually decreases.

[0049] Furthermore, since multiple blades 20 are evenly arranged along the outer periphery of the cutter disc 10, their rotation allows for direct impact and crushing of the material without obstruction, increasing the probability of collision between the blades 20 and the material. This results in rapid crushing, improved crushing efficiency, and enhanced fineness, thus improving the overall crushing effect. By providing multiple circulation holes 30 through the cutter disc 10, after the material is thrown outwards by the centrifugal force of the crushing blades and forms a central vortex, the presence of the circulation holes 30 allows water to flow back towards the central vortex during the rotation of the crushing blades. This breaks the centrifugal turbulence, and the water tumbles at the circulation holes 30, creating a turbulent effect that drives the material to circulate, achieving cyclic crushing and improving crushing efficiency. Therefore, as R1 / R2 increases, the crushing effect of the blades 20 is sacrificed, resulting in insufficient fineness and a gradually increasing amount of soybean residue.

[0050] Combination Figure 2 When 0.33 ≤ R1 / R2 ≤ 0.51, the amount of soybean residue after grinding is less than 6% and the grinding noise can be controlled below 68dB, achieving both improved grinding efficiency and noise control. If R1 / R2 < 0.33, the noise will exceed 68dB; if R1 / R2 > 0.51, the amount of soybean residue will be greater than 6%, resulting in low grinding efficiency and a less smooth soy milk texture.

[0051] Example 2

[0052] This embodiment provides a ring-shaped cutterhead structure.

[0053] like Figure 3-5As shown, the cutter head 10 includes a ring body 11 and a connecting body 12 located inside the ring body 11. The cutter blade 20 is connected to the outer ring wall of the ring body 11. The connecting body 12 is provided with a plurality of connecting portions 13 extending toward the ring body 11. The connecting portions 13 are connected to the inner ring wall of the ring body 11, and a circulation hole 30 is defined between two adjacent connecting portions 13.

[0054] By configuring the cutter head 10 as a ring body 11 and a connecting body 12, with the blades 20 connected to the outer ring wall of the ring body 11, the ring body 11 is used to counteract the vibration transmission of multiple blades 20, improving the rotational stability of the pulverizing blades and reducing amplitude and vibration noise. The connecting body 12 is connected to the inner ring wall of the ring body 11 via a connecting part 13, giving the cutter head 10 reliable structural strength. A circulation hole 30 is defined between two adjacent connecting parts 13. Therefore, the circulation hole 30 also serves as a weight-reducing hole. Compared to a solid cutter head 10, the ring body 11 can reduce its own weight, which helps to reduce the drive load, thereby facilitating smooth rotation and reducing noise.

[0055] like Figure 3 As shown, the number of blades 20 corresponds to the number of connecting parts 13, and each blade 20 is located on the extension line of the corresponding connecting part 13.

[0056] On the one hand, the blade 20 is located on the extension line of the corresponding connecting part 13. Based on the use of the ring body 11 to counteract the vibration of the blade 20, the vibration of multiple blades 20 can also be transmitted to the center of the connecting body 12 through the corresponding connecting part 13. During the transmission process, the vibration is canceled out, realizing the stable rotation of the crushing blade and reducing the amplitude and vibration noise. On the other hand, the connecting part 13 can not only increase the strength of the connection between the ring body 11 and the connecting body 12, but also strengthen the connection strength between the blade 20 and the ring body 11, improve the overall strength of the crushing blade, and enhance its resistance to deformation.

[0057] Additionally, it should be noted that in other embodiments, the blade 20 and the connecting portion 13 may be arranged offset along the circumference of the ring body 11. By arranging the blade 20 and the connecting portion 13 offset along the circumference of the ring body 11, the blade 20 and the circulation hole 30 are brought closer together, allowing the water flow to carry the material into rapid contact with the blade 20 after flowing through the circulation hole 30, thus achieving rapid pulverization.

[0058] like Figure 3 As shown, preferably, the width W of the connecting part 13 is ≥ 5 mm. This increases the strength of the connection between the ring body 11 and the connecting body 12, and enhances its resistance to deformation.

[0059] It is understood that, based on this embodiment, the ring 11 may have the same thickness as the blade 20, or the lower surface of the ring 11 may protrude beyond the blade 20 to form a cylindrical shape, such as... Figure 3 , 4 As shown.

[0060] More preferably, such as Figure 3 As shown, the surface of the connecting part 13 is provided with an inclined cutting edge 14.

[0061] By providing an inclined blade 14 on the surface of the connecting part 13, when the crusher rotates in the liquid, the inclined blade 14 rotates to form a large gap, thereby creating a negative pressure and generating a suction force on the liquid flow, thereby accelerating the flow speed of the liquid flow, allowing the water flow to circulate rapidly along the circulation hole 30, and the material to collide rapidly with the blade 20, thereby improving the crushing efficiency.

[0062] More specifically, the cutting edge 14 can be provided on the back side of the connecting part 13 along the crushing direction, or it can be provided on the front side of the connecting part 13 along the crushing direction.

[0063] Of course, it is understandable that the surface of the connecting part can also be flat, used to connect the connecting body to the ring body.

[0064] Example 3

[0065] like Figure 6 , Figure 7 As shown, in this embodiment, the wall of the circulation hole 30 is provided with a protrusion 31 for pushing water flow through the circulation hole 30.

[0066] More preferably, the protrusion 31 is bent relative to the surface of the cutter head 10.

[0067] By providing protrusions on the wall of the circulation hole 30 to push water flow through it, the water flow towards the circulation hole 30 can be accelerated, material circulation can be accelerated, and the crushing effect can be improved. By bending the protrusions relative to the surface of the cutter disc 10, the protrusions can impact the material for crushing, thereby expanding the crushing area along the axial direction of the crushing blade, improving crushing efficiency, and making cleaning convenient.

[0068] Of course, the protrusion in this invention is not limited to this one type. In other embodiments, the protrusion may optionally be twisted into a spiral shape. Twisting the protrusion into a spiral shape reduces rotational resistance and crushing noise. Optionally, as... Figure 6 As shown, the protrusion 31 is connected to the connecting body 12 and extends outward from the connecting body 12 to form a free end. In fact, the protrusion 31 can also be connected to the ring body 11 and extend inward from the ring body 11 to form a free end; or the protrusion 31 can be connected to the connecting part 13.

[0069] It should be noted that this embodiment can be combined with other embodiments, and the protrusion structure provided in this embodiment is not limited to its application in... Figure 6 The ring-shaped cutter head structure shown can actually be combined with the cutter head structures of other embodiments of this utility model.

[0070] Example 4

[0071] This embodiment differs from the cutter head structure in Example 2.

[0072] like Figure 8 As shown, in this embodiment, multiple circulation holes 30 are arranged in an array on the cutter head 10.

[0073] More preferably, a shaft hole 40 is provided at the center of the cutter head for connection with the cutter shaft.

[0074] Of course, in other embodiments, the multiple circulation holes 30 may be densely arranged in one or more circles around the center of the cutter head 10; or the multiple circulation holes 30 may be evenly arranged around the center of the cutter head 10.

[0075] Regardless of whether the multiple circulation holes 30 are arranged in an array, densely arranged in multiple rings, or arranged around the center of the cutter head 10, during the rotation of the crushing blade, the water flow can flow back to the central vortex through the circulation holes 30, breaking the centrifugal turbulence. The water flow rolls at the circulation holes 30, creating a turbulence effect and driving the material circulation.

[0076] In other embodiments, a connecting shaft may be provided at the center of the cutter head 10.

[0077] By setting a shaft hole 40 at the center of the cutter head 10, the cutter head 10 is connected to the cutter shaft. In the food processing machine, reliable transmission is achieved by inserting the cutter shaft into the motor shaft, or the motor shaft can be directly used as the cutter shaft, and the cutter head 10 can be directly fixed to the motor shaft to achieve reliable transmission. Alternatively, a connecting shaft can be set at the center of the cutter head 10, which can be directly connected to the motor shaft for transmission, eliminating the need for separate assembly and simplifying the structure.

[0078] Preferably, the total area S1 of the circulation holes 30 and the area S2 of the cutter disc 10 satisfy 0.25 ≤ S1 / S2 ≤ 0.5. Satisfying 0.25 ≤ S1 / S2 ≤ 0.5 avoids the problems of poor water circulation due to an excessively small total area of ​​the circulation holes 30 and reduced strength of the cutter disc 10 due to an excessively large total area of ​​the circulation holes 30. Satisfying 0.25 ≤ S1 / S2 ≤ 0.5 can improve the strength of the cutter disc 10, enhance its resistance to deformation, and improve the material circulation and crushing effect.

[0079] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0080] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0081] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A pulverizing blade for a food processor, characterized by, It includes a circular cutter head and multiple cutter blades evenly arranged along the outer periphery of the cutter head. Multiple circulation holes are provided through the cutter head. The outer diameter R1 of the cutter head and the maximum rotation diameter R2 of the cutter blades satisfy: 0.33≤R1 / R2≤0.

51.

2. The shredder blade for a food processing machine according to claim 1, characterized in that, The cutter head includes a ring body and a connecting body located inside the ring body. The cutter blade is connected to the outer ring wall of the ring body. The connecting body has a plurality of connecting portions extending into the ring body. The connecting portions are connected to the inner ring wall of the ring body, and the circulation hole is defined between two adjacent connecting portions.

3. A shredder blade for a food processing machine according to claim 2, characterized in that, The surface of the connecting part is provided with an inclined cutting edge.

4. A shredder blade for a food processing machine according to claim 2, characterized in that, The number of blades corresponds to the number of connecting parts, and each blade is located on the extension line of the corresponding connecting part; Alternatively, the blade and the connecting portion are arranged offset from each other along the circumference of the ring body.

5. A shredder blade for a food processing machine according to claim 2, characterized in that, The width W of the connecting part is ≥ 5mm.

6. A shredder blade for a food processing machine according to claim 1, characterized in that, The circulation hole has protrusions on its wall to push water through it.

7. A shredder blade for a food processing machine according to claim 6, characterized in that, The protrusion is bent relative to the surface of the cutter head; Alternatively, the protrusion may be twisted in a spiral shape.

8. A shredder blade for a food processing machine according to claim 1, characterized in that, The plurality of circulation holes are arranged in an array on the cutter head; Alternatively, the plurality of circulation holes are densely arranged in multiple rings around the center of the cutter head; Alternatively, the plurality of circulation holes are evenly arranged around the center of the cutter head.

9. A shredder blade for a food processing machine according to claim 1, characterized in that, The total area S1 of the circulation holes and the area S2 of the cutter head satisfy 0.25≤S1 / S2≤0.

5.

10. A shredder blade for a food processing machine according to claim 1, characterized in that, The cutter head has a shaft hole at its center for connecting with the cutter shaft; or, the cutter head has a connecting shaft at its center.

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