Smashing cutter for food processor

Abstract

The utility model belongs to the technical field of crushing cutters, and discloses a crushing cutter for a food processor, which comprises a wing root and a cutter wing connected with the wing root, the cutter wing is provided with a cutting edge extending from the wing root to the tip of the cutter wing, at least the surface of the cutter wing at the edge of the cutting edge is provided with a plurality of concave micro pits, the micro pits extending to the cutting edge form gaps, and the gaps are communicated with the cutter wing. The cutting edge comprises an initial edge and a micro edge formed by a notch. According to the crushing cutter for the food processor, the shape of the cutting edge of the crushing cutter is improved, so that the problem that in the prior art, the cutting edge is thinned simply to achieve a good crushing effect, so that the crushing cutter is prone to edge curling and damage is solved, the crushing fineness of the crushing cutter is improved, meanwhile, the edge curling prevention performance is improved, and the service life of the crushing cutter is prolonged. And in addition, the material adhesion probability is reduced, and the crushing cutter can be thoroughly cleaned conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushing cutters, and in particular relates to a crushing cutter used for a food processing machine. Background Art

[0002] The food processor uses a motor to drive the pulverizer to rotate. The pulverizer uses the blade edge of the blade to cut the food materials during high-speed rotation to achieve pulverization. With the improvement of users' quality of life, users have higher and higher requirements for the pulverization fineness of pulping materials. The pulverizer structure of the food processor will directly affect the pulverization effect of the food processor and the taste of the drink.

[0003] For example, the utility model with application number 201020271333.5 discloses a soymilk machine blade, which includes a blade root and a plurality of blade wings arranged at the outer edge of the blade root, wherein a blade is arranged on the rotating pulp-facing surface of each blade wing, and an axial hole is arranged in the middle of the blade root, and a plurality of raised burrs are arranged on the upper and lower surfaces of the blade wing. The solution is that the blade and raised burrs on the blade wing are rotated to cut and grind beans in a three-dimensional space, and at the same time, a huge centrifugal force is generated to throw the pulp, so that the beans are quickly and repeatedly cut and ground by the blade and raised burrs on the blade wing, thereby improving the processing speed and processing quality. However, since the blade in this solution is a linear blade, in order to achieve a good cutting effect, the blade edge is usually thinned to make it very sharp. This causes the blade to partially yield and deform due to insufficient hardness and elasticity after the hard granular material hits the blade, extending in the direction of the force. After repeated concentrated force, this extension trend extends around along the linear blade, causing the blade to lose its corresponding cutting ability, thereby forming a curling phenomenon, and causing problems such as cracking and dulling.

[0004] For another example, the utility model with application number 201320517297.X discloses a food processing machine crushing blade, including a wing root and a blade connected to the wing root, a mounting hole is provided at the center of the wing root, a linear blade and a serrated blade are provided on the front of the blade wing, and a serrated groove is provided on the back of the blade wing corresponding to the serrated blade. Since the linear blade and the serrated blade are provided on the front of the blade wing, the food processing machine crushing blade can crush materials of different properties, and the possibility of blade rolling can be reduced by setting the serrated blade. However, since the serrated blade occupies part of the blade wing space, the length of the linear blade is limited, and the serrated blade must maintain sufficient grinding strength and the thickness cannot be too thin, which results in the serrated blade position not being sharp enough, the cutting effect is poor, and a more delicate crushing effect cannot be achieved.

[0005] Therefore, how to design a crushing knife that can achieve a good crushing effect while effectively avoiding the damage of the crushing knife blade needs further research. Utility Model Content

[0006] The utility model provides a crushing knife for a food processing machine. By improving the edge shape of the crushing knife, the problem that the crushing knife is easily damaged by blade curling caused by simply thinning the blade edge in the prior art to achieve a good crushing effect is solved, thereby improving the crushing fineness of the crushing knife and improving the anti-curling performance.

[0007] The technical solution adopted by the utility model is:

[0008] The utility model provides a crushing knife for a food processing machine, comprising a wing root and a blade wing connected to the wing root, wherein the blade wing is provided with a cutting edge extending from the wing root to the tip of the blade wing, and at least a plurality of recessed micro-pits are provided on the surface of the blade wing at the edge of the cutting edge, and the micro-pits extending to the cutting edge form a notch, and the cutting edge comprises an initial blade and a micro-blade formed by the notch.

[0009] The utility model provides a crushing knife for a food processing machine, which is provided with a plurality of recessed micro-pits on the blade surface at the edge of the blade, and the micro-pits extending to the blade form notches, and the notches form micro-blades. Therefore, the micro-blades are formed based on the plurality of recessed micro-pits, and the blade is locally thinned. The existence of the micro-blades increases the sharpness of the blade, and can more easily cut into and crush materials. Even in the later stage of crushing, fine materials can still be crushed more fully and effectively, thereby improving the crushing efficiency and the fineness of the crushing. Since the micro-pits extend to the blade to form notches, the blade is irregular in shape, and more micro-cracks and broken points are generated in the process of cutting materials by the blade, which is conducive to further crushing of the materials, so that the particles of the crushed materials are finer and more uniform, and the crushing quality and efficiency are improved. The blade edge includes an initial blade and a micro-blade formed by a notch, and the micro-blades are segmented and interspersed between the initial blades. The initial blade at the non-depressed part has a certain thickness and strength compared to the micro-blade formed by the depressed micro-pits. Therefore, during the crushing process, the initial blade maintains a strong strength and hardness, thereby avoiding the problem of blade curling. Moreover, the initial blade can achieve the effects of rapid impact, striking, and cutting of materials. Combined with the fineness and sufficient cutting of the micro-blade, the crushing effect is enhanced and the crushing is fine. During the joint cutting process, the blade edge will be subjected to greater stress, and the initial blade and the micro-blade are misaligned in the thickness direction of the blade due to the difference in thickness. Since multiple micro-pits extend to the blade edge to form a notch, the setting of the notch disperses the stress to more areas. The micro-blade and the initial blade share the stress together, reducing the risk of micro-blade curling, reducing the phenomenon of local stress concentration, and reducing the possibility of blade curling. At the same time, the notch improves the elastic deformation capacity of the blade edge, prevents the extension of blade curling, reduces the risk of blade curling, and extends the service life of the crushing knife, achieving the simultaneous improvement of crushing effect and anti-blade curling performance. In addition, a plurality of concave micro-pits are arranged on the surface of the blade at least at the edge of the cutting edge. When the blade is on the cutting liquid surface, dense bubbles are formed due to the uneven surface, forming a layer of bubble film, which reduces the probability of material adhesion and facilitates the thorough cleaning of the crushing knife.

[0010] In a preferred embodiment, the micro-blade is retracted toward the opposite side of the cutting edge relative to the initial blade, and the cutting edge further comprises a bent blade connecting the micro-blade and the initial blade.

[0011] By retracting the micro-blade relative to the initial blade toward the opposite side of the cutting edge, the micro-blade and the initial blade are not only misaligned in the thickness direction of the blade wing, but also in the radial direction of the blade wing, thereby further reducing the phenomenon of local stress concentration and the possibility of blade curling at the blade edge. At the same time, the extension of blade curling is prevented in both the thickness and radial directions of the blade wing, thereby improving the elastic deformation capacity of the blade edge and extending the service life of the crushing knife; the micro-blade is retracted relative to the initial blade toward the opposite side of the cutting edge, and the cutting edge also includes a bent blade connecting the micro-blade and the initial blade, thereby extending the cutting line length of the cutting edge, increasing the probability of contact between the cutting edge and the material, improving the crushing effect and crushing efficiency, and achieving a simultaneous improvement in the crushing effect and anti-curling performance.

[0012] In a preferred embodiment, the bending edge is a sharp edge or an arc-shaped edge.

[0013] The bent blade, whether it is a pointed blade or a curved blade, can extend the cutting line of the blade edge and improve the cutting effect. The pointed blade can easily pierce the material, has low cutting resistance and high work efficiency; the curved blade can achieve smooth cutting action and avoid material jamming during the cutting process.

[0014] In a preferred embodiment, the thickness of the blade gradually decreases toward the cutting edge, and the average depth H of the micro-pits and the average thickness h of the cutting edge satisfy: h<H<2h.

[0015] The thickness of the blade gradually becomes thinner toward one side of the cutting edge, and the average depth H of the micro-pits and the average thickness h of the cutting edge satisfy: h<H<2h, so that the multiple micro-pits on the side of the blade close to the cutting edge can penetrate the blade at the cutting edge position, so that the micro-edge formed in the notch will be recessed relative to the initial edge, and the two are nonlinearly connected, which prevents the extension of the blade curling in the radial direction of the blade, improves the elastic deformation capacity of the cutting edge, and prolongs the service life of the crushing knife. At the same time, it is beneficial to extend the entire cutting line of the cutting edge and improve the crushing effect.

[0016] In a preferred embodiment, the micro-edge and the initial edge are linearly connected along the contour line of the blade wing and are staggered along the thickness direction of the blade wing.

[0017] The micro-edge and the initial edge are linearly connected along the contour line of the blade and are staggered along the thickness direction of the blade, thereby preventing the possibility of edge rolling in the thickness direction of the blade and achieving a good crushing effect.

[0018] In a preferred embodiment, the average diameter R of the micropits satisfies 0.2 mm ≤ R ≤ 1.2 mm;

[0019] In a preferred embodiment, the average width W of the notch satisfies 0.1 mm≤W≤0.6 mm.

[0020] The average diameter R of the micro-pits satisfies 0.2mm≤R≤1.2mm, and the average width W of the notches satisfies 0.1mm≤W≤0.6mm. This is to avoid the micro-pits being too small, resulting in the micro-blades being too small, resulting in an insignificant improvement in the crushing effect, and to avoid the micro-pits being too large, resulting in the micro-blades being too large, which is not conducive to improving the overall structural strength and anti-curling ability of the crushing knife. Therefore, satisfying 0.2mm≤R≤1.2mm or 0.2mm≤R≤1.2mm can achieve good crushing effect and good anti-curling performance.

[0021] In a preferred embodiment, the average depth of the micropits is H, satisfying 0.02 mm ≤ H ≤ 0.1 mm.

[0022] By setting the average depth of the micro-pits at 0.02mm≤H≤0.1mm, we can avoid the micro-pits being too shallow and the micro-blades being not sharp enough, and at the same time avoid the micro-pits being too deep and filled with fine materials, causing the risk of slag accumulation. Meeting 0.02mm≤H≤0.1mm can form micro-blades and effectively improve the crushing effect, and effectively generate micro-effect bubbles and bubble films on the surface of the micro-pits, thereby preventing materials from adhering to and accumulating in the micro-pits, and achieving thorough cleaning of the crushing knife.

[0023] In a preferred embodiment, the micro-pits are formed on the blade surface by laser or etching.

[0024] The micro-pits are processed by laser or etching, which does not require high positioning accuracy, making it easy for the micro-pits to fall smoothly on the cutting edge to form notches. It is also conducive to batch processing and is achieved by non-mechanical means such as laser or etching. It has little impact on the initial cutting edge, has a wide range of material adaptability, and can also achieve pre-processing of sheet metal.

[0025] In a preferred embodiment, the blade has a first surface and a second surface arranged opposite to each other, the first surface includes a blade surface inclined toward the second surface, the cutting edge is located at the edge of the blade surface, and the micro-pits are arranged on the blade surface or the second surface.

[0026] In a preferred embodiment, the sizes of the plurality of notches spaced apart along the cutting edge are different.

[0027] By forming notches of different sizes, the shape of the cutting edge is irregular, which can achieve good crushing of materials with different properties and improve the crushing effect. At the same time, it can also reduce the precision requirements for micro-pit processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0029] Figure 1 This is a schematic diagram of the structure of the crushing knife in Example 1 of the present utility model;

[0030] Figure 2 This is an enlarged schematic diagram of the structure of the crushing knife at the cutting edge in Example 1 of the present utility model;

[0031] Figure 3 This is a schematic structural diagram of the cutting edge of the crushing knife in Example 1 of the present utility model;

[0032] Figure 4 This is a schematic diagram of the structure of the crushing knife in Example 2 of the present utility model;

[0033] Figure 5 This is an enlarged schematic diagram of the structure of the crushing knife at the cutting edge in Example 2 of the present utility model;

[0034] Figure 6 This is a schematic diagram of the structure of the crushing knife on the second surface in Example 3 of the present utility model;

[0035] Figure 7 This is a schematic structural diagram of the first surface edge of the crushing knife in Example 3 of the present utility model.

[0036] Explanation of the reference numerals: 10, wing root; 20, blade wing; 30, cutting edge; 31, initial cutting edge; 32, micro-cutting edge; 321, first micro-cutting edge; 322, second micro-cutting edge; 33, bent cutting edge; 40, micro-pit. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present invention and the features in each embodiment may be combined with each other without conflict.

[0039] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0042] The utility model provides a crushing knife for a food processing machine in one embodiment, referring to Figure 1 , Figure 2 As shown, the pulverizing blade includes a wing root 10 and a blade wing 20 connected to the wing root 10, the blade wing 20 is provided with a cutting edge 30 extending from the wing root 10 to the tip of the blade wing 20, at least the surface of the blade wing 20 at the edge of the cutting edge 30 is provided with a plurality of recessed micro-pits 40, the micro-pits 40 extending to the cutting edge 30 form a notch, and the cutting edge 30 includes an initial edge 31 and a micro-edge 32 formed by the notch.

[0043] The present embodiment provides a crushing knife for a food processing machine, wherein a plurality of recessed micro-pits 40 are provided on the surface of the blade wing 20 at the edge of the blade 30, and the micro-pits 40 extending to the blade 30 form a notch, and a micro-blade 32 is formed by the notch. Therefore, the micro-blade 32 is formed based on the plurality of recessed micro-pits 40, and a local thinning design is formed on the blade wing 20. The existence of the micro-blade 32 increases the sharpness of the blade 30, and can more easily cut into and crush the material. Even in the later stage of crushing, the fine material can still be crushed more fully and effectively, thereby improving the crushing efficiency and the fineness of the crushing. Since the micro-pits 40 extend to the blade 30 to form a notch, the blade 30 is irregular in shape, and more micro-cracks and crushing points are generated in the process of cutting the material by the blade 30, which is conducive to further crushing of the material, so that the particles of the crushed material are finer and more uniform, thereby improving the crushing quality and efficiency. The cutting edge 30 includes an initial cutting edge 31 and a micro-cutting edge 32 formed by a notch. The micro-cutting edge 32 is interspersed between the initial cutting edges 31 in sections. The initial cutting edge 31 at the non-depressed portion has a certain thickness and strength compared to the micro-cutting edge 32 formed by the depressed micro-pit 40. Therefore, during the crushing process, the initial cutting edge 31 maintains a strong strength and hardness, thereby avoiding the problem of edge curling. Moreover, the initial cutting edge 31 can achieve the effect of rapid impact, striking, and cutting of the material. Combined with the fineness and full cutting of the micro-cutting edge 32, the crushing effect is enhanced and the crushing is fine. During the joint cutting process, the cutting edge 30 will be greatly affected. The stress of the blade 20 is reduced, and the initial blade 31 and the micro blade 32 are misaligned in the thickness direction of the blade 20 due to the difference in thickness. Since multiple micro pits 40 extend to the blade edge 30 to form a gap, the setting of the gap disperses the stress to more areas, and the micro blade 32 and the initial blade 31 share the stress, reducing the risk of the micro blade 32, reducing the phenomenon of local stress concentration, and reducing the possibility of blade rolling at the blade edge 30. At the same time, the gap improves the elastic deformation ability of the blade edge 30, prevents the extension of the blade rolling, reduces the risk of blade rolling, and extends the service life of the crushing knife, achieving the simultaneous improvement of the crushing effect and the anti-blade rolling performance. In addition, a plurality of concave micro pits 40 are arranged on the surface of the blade 20 at least at the edge of the blade edge 30. When the blade 20 is on the cutting liquid surface, due to the uneven surface, dense bubbles are formed, forming a layer of bubble film, reducing the probability of material adhesion, and facilitating the thorough cleaning of the crushing knife.

[0044] It should be noted that the present invention does not limit the arrangement of the micro-pits 40, for example, the micro-pits 40 are formed on the surface of the blade 20 by laser or etching. The micro-pits 40 are processed by laser or etching, which does not require high positioning accuracy, and facilitates the smooth falling of the micro-pits 40 on the cutting edge 30 to form a notch, and is also conducive to batch processing. The non-mechanical means of laser or etching molding is used, which has little impact on the initial cutting edge 31, has a wide material adaptability, and can also achieve pre-processing of sheet materials.

[0045] The food processor in the utility model can be selected as: a food processor that does not require hand washing, a wall breaking machine, a head-type soybean milk machine, a meat grinder, a food supplement machine or a juicer. Preferably, the food processor includes a motor for driving the crushing blade, and preferably, a mounting hole is provided in the middle of the wing root to be transmission-connected with the rotating shaft of the motor.

[0046] The present invention does not limit the specific form of the cutting edge 30, for example:

[0047] Implementation example 1, such as Figure 1 , Figure 2 , Figure 3 As shown, the micro-blade 32 is retracted to the opposite side of the cutting edge 30 relative to the initial blade 31, and the cutting edge 30 further includes a bent blade 33 connecting the micro-blade 32 and the initial blade 31. Figure 2 As shown, the bending edge 33 is a sharp edge.

[0048] By retracting the micro-blade 32 to the opposite side of the cutting edge 30 relative to the initial blade 31, the micro-blade 32 and the initial blade 31 are not only misaligned in the thickness direction of the blade wing 20, but also in the radial direction of the blade wing 20, thereby further reducing the phenomenon of local stress concentration and the possibility of blade curling at the cutting edge 30. At the same time, the extension of blade curling is prevented in both the thickness and radial directions of the blade wing 20, thereby improving the elastic deformation capacity of the cutting edge 30 and extending the service life of the crushing knife; the micro-blade 32 is retracted to the opposite side of the cutting edge 30 relative to the initial blade 31, and the cutting edge 30 also includes a bent blade 33 connecting the micro-blade 32 and the initial blade 31, thereby extending the cutting line length of the cutting edge 30, increasing the probability of contact between the cutting edge 30 and the material, improving the crushing effect and crushing efficiency, and achieving a simultaneous improvement in the crushing effect and anti-curling performance.

[0049] Of course, in other embodiments, the bending edge 33 may also be an arc-shaped edge.

[0050] The bending blade 33, whether it is a sharp blade or a curved blade, can extend the cutting line of the blade edge 30 and improve the cutting effect. A sharp blade can easily pierce the material, with low cutting resistance and high working efficiency; a curved blade can achieve smooth cutting action and avoid material jamming during the cutting process. In fact, the bending blade 33 can also be a bending line blade with more than two fold lines.

[0051] Implementation Example 2, such as Figure 4 , Figure 5 As shown, the difference from the implementation example 1 is that the micro-edge 32 and the initial edge 31 are linearly connected along the contour line of the blade wing 20. Due to the setting of the micro-pit 40, the micro-edge 32 and the initial edge 31 are misaligned along the thickness direction of the blade wing 20. Figure 3 .

[0052] It should be noted that the micro-edge 32 and the initial edge 31 are misaligned along the thickness direction of the blade 20 , that is, the top contour line of the micro-edge 32 is not flush with the top contour line of the initial edge 31 .

[0053] The micro-edge 32 and the initial edge 31 are linearly connected along the contour line of the blade wing 20 and are staggered along the thickness direction of the blade wing 20, thereby preventing the possibility of edge rolling in the thickness direction of the blade wing 20 and achieving a good crushing effect.

[0054] Implementation Example 3, such as Figure 6 and Figure 7 As shown, this embodiment provides a crushing knife including a wing root 10 and a blade wing 20 connected to the wing root 10, the blade wing 20 is provided with a cutting edge 30 extending from the wing root 10 to the tip of the blade wing 20, at least the surface of the blade wing 20 at the edge of the cutting edge 30 is provided with a plurality of recessed micro-pits 40, the micro-pits 40 extending to the cutting edge 30 form a notch, and the cutting edge 30 includes an initial edge 31 and a micro-edge 32 formed by the notch.

[0055] Different from the above-mentioned embodiment, the edge 30 in this embodiment includes a first micro-edge 321 and a second micro-edge 322, wherein Figure 7 As shown, the first micro-blade 321 is retracted toward the opposite side of the cutting edge 30 relative to the initial blade 31, and the cutting edge 30 also includes a bent blade 33 connecting the first micro-blade and the initial blade 31. The second micro-blade 322 is linearly connected to the initial blade 31 along the contour line of the blade wing 20. Of course, it can be understood that the first micro-blade and the second micro-blade are respectively offset from the initial blade 31 along the thickness direction of the blade wing 20.

[0056] The present invention does not limit the relevant parameters of the micro-pits 40. For example, in a preferred embodiment, the thickness of the blade 20 gradually decreases toward the cutting edge 30, and the average depth H of the micro-pits 40 and the average thickness h of the cutting edge 30 satisfy: h<H<2h.

[0057] The thickness of the blade wing 20 gradually changes from thick to thin toward the side of the cutting edge 30, and the average depth H of the micro-pits 40 and the average thickness h of the cutting edge 30 satisfy: h<H<2h, so that the multiple micro-pits 40 on the side of the blade wing 20 close to the cutting edge 30 can penetrate the blade wing 20 at the cutting edge 30, so that the micro-blade 32 formed in the notch will be recessed relative to the initial blade 31, and the two are nonlinearly connected, which prevents the extension of the blade curling in the radial direction of the blade wing 20, improves the elastic deformation ability of the cutting edge 30, and prolongs the service life of the crushing knife. At the same time, it is beneficial to extend the cutting line of the entire cutting edge 30 and improve the crushing effect.

[0058] In a preferred embodiment, the average diameter R of the micropits 40 satisfies 0.2 mm ≤ R ≤ 1.2 mm;

[0059] In a preferred embodiment, the average width W of the notch satisfies 0.1 mm≤W≤0.6 mm.

[0060] The average diameter R of the micro-pits 40 satisfies 0.2mm≤R≤1.2mm, and the average width W of the notches satisfies 0.1mm≤W≤0.6mm. This is to avoid the micro-pits 40 being too small, resulting in the micro-blades 32 being too small, and the improvement of the crushing effect being not obvious, and to avoid the micro-pits 40 being too large, and the micro-blades 32 being too large, which is not conducive to the improvement of the overall structural strength and anti-curling ability of the crushing knife. Therefore, satisfying 0.2mm≤R≤1.2mm or 0.2mm≤R≤1.2mm can achieve good crushing effect and good anti-curling performance.

[0061] In a preferred embodiment, the average depth of the micropits 40 is H, satisfying 0.02 mm ≤ H ≤ 0.1 mm.

[0062] By setting the average depth of the micro-pits 40 at 0.02mm≤H≤0.1mm, it is possible to avoid the micro-pits 40 being too shallow and the micro-blades 32 being not sharp enough, and at the same time, it is possible to avoid the micro-pits 40 being too deep and filled with finely crushed materials, causing the risk of slag accumulation. Meeting the condition of 0.02mm≤H≤0.1mm can effectively generate micro-effect bubbles and bubble films on the surface of the micro-pits 40 on the basis of forming the micro-blades 32 and effectively improving the crushing effect, thereby preventing materials from adhering to and accumulating in the micro-pits 40, and achieving thorough cleaning of the crushing knife.

[0063] In a preferred embodiment, the sizes of the plurality of notches spaced apart along the cutting edge 30 are different, that is, at least two notches have different sizes.

[0064] By forming notches of different sizes, the shape of the cutting edge 30 is made irregular, and materials with different properties can be well crushed, thereby improving the crushing effect, and at the same time, the precision requirement for the processing of the micro-pits 40 can be reduced.

[0065] It should also be noted that the present invention does not limit the location and number of the micro-pits 40, for example:

[0066] In implementation example 1, if Figure 1 As shown, the blade 20 has a first surface and a second surface arranged opposite to each other, the first surface includes a blade surface inclined toward the second surface, the cutting edge 30 is located at the edge of the blade surface, and only micro-pits 40 are arranged on the blade surface.

[0067] In implementation example 2, if Figure 4 As shown, dimples 40 are distributed throughout the first surface.

[0068] In implementation example 3, if Figure 6 and Figure 7As shown, only the second surface opposite to the blade surface is provided with micro-pits 40. Of course, it can be understood that the second surface can be provided with an inclined blade surface, and the micro-pits 40 can be spread over the second surface or only be provided on the blade surface.

[0069] In addition, it should be noted that the blade wing 20 of the crushing knife in the utility model can be selected as a single-sided blade or a double-sided blade, that is, a cutting edge 30 is set on one side of the blade wing 20, and a blade back is set on the other side opposite to the cutting edge 30; or, cutting edges 30 are respectively set on two opposite sides of the blade wing 20, and at least one cutting edge 30 includes the above-mentioned initial blade 31 and micro blade 32, so that cutting can be achieved when the crushing knife is rotated forward or reversely.

[0070] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0071] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0072] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A pulverizing knife for a food processor, comprising a wing root and a blade connected to the wing root, wherein the blade is provided with a cutting edge extending from the wing root to the tip of the blade, characterized in that: At least a blade wing surface at the edge of the cutting edge is provided with a plurality of recessed micro-pits, and the micro-pits extending to the cutting edge form notches, and the cutting edge comprises an initial edge and a micro-edge formed by the notches.

2. A crushing knife for a food processing machine according to claim 1, characterized in that: The micro-blade is retracted toward the opposite side of the cutting edge relative to the initial blade, and the cutting edge further includes a bent blade connecting the micro-blade and the initial blade.

3. A crushing knife for a food processing machine according to claim 2, characterized in that: The bending blade is a sharp blade or an arc-shaped blade.

4. A crushing knife for a food processing machine according to claim 1 or 2, characterized in that: The thickness of the blade gradually decreases toward the cutting edge, and the average depth H of the micro-pits and the average thickness h of the cutting edge satisfy: h<H<2h.

5. The crushing knife for a food processing machine according to claim 1, characterized in that: The micro-edge and the initial edge are linearly connected along the contour line of the blade wing and are staggered along the thickness direction of the blade wing.

6. The crushing knife for a food processor according to claim 1, characterized in that: The average diameter R of the micro-pits satisfies 0.2 mm ≤ R ≤ 1.2 mm; Alternatively, the average width W of the notch satisfies 0.1 mm≤W≤0.6 mm.

7. The crushing knife for a food processing machine according to claim 1, characterized in that: The average depth H of the micro-pits satisfies 0.02 mm ≤ H ≤ 0.1 mm.

8. The crushing knife for a food processor according to claim 1, characterized in that: The micro-pits are formed on the surface of the blade by laser or etching.

9. The crushing knife for a food processing machine according to claim 1, characterized in that: The blade has a first surface and a second surface that are arranged opposite to each other, the first surface includes a blade surface that is inclined toward the second surface, the cutting edge is located at the edge of the blade surface, and the micro-pits are arranged on the blade surface or the second surface.

10. The crushing knife for a food processor according to claim 1, characterized in that: The sizes of the multiple notches arranged at intervals along the cutting edge are different.

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