Cutting knife and processing method thereof, cutter assembly and food crushing device

Abstract

The invention discloses a cutting knife and a processing method thereof, a cutter assembly and a food crushing device. The cutting knife comprises a knife body and a knife edge, the flat paving face of the knife body is in a parallelogram shape, the knife edge is arranged on a pair of bevel edges of the parallelogram, and the two ends of the knife body are bent by a group of opposite angles of the parallelogram to form two knife blades. Therefore, the resistance of food materials to the cutting knife can be reduced, the phenomena of motor stalling and knife clamping are reduced, and the service life of the cutting knife is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a cutting knife and a processing method thereof, a knife assembly and a food crushing device. Background Art

[0002] With the development of economy, household appliances have become more diversified, and more household appliances have the function of cutting and crushing food. As an important structural part in the process of cutting and crushing, the cutter assembly will directly affect the overall crushing effect of the device.

[0003] Typically, the tool assembly includes a multi-blade long strip cutting knife. The cutting knife is usually rectangular, and the blades are also mostly long strips. The cutting knife forms different crushing areas by bending. When there are more blades bent upward, the cutting knife has greater resistance. When crushing harder or frozen ingredients, the ingredients are easily stuck in the cutting knife, causing the motor to stall or even burn out the motor. At the same time, when the ingredients are stuck in the cutting knife and the motor stalls, the cutting knife is subjected to greater force and is prone to breaking. Summary of the invention

[0004] According to one aspect of the present application, a cutting knife is provided, comprising: a knife body and a blade, wherein the flat surface of the knife body is a parallelogram, the blade is arranged on a pair of oblique sides of the parallelogram, and the two ends of the knife body are formed into two blades by a group of diagonal bends of the parallelogram.

[0005] Exemplarily, the blade body includes a mounting portion connecting two blades, the two blades are bent toward the same side of the mounting portion and extend away from the mounting portion, and the angle between the plane where the blades are located and the plane where the mounting portion is located is 20° to 70°.

[0006] Exemplarily, the acute angles of the parallelogram are bent to form the sharp corners of the blade.

[0007] Exemplarily, the parallelogram includes a pair of long sides and a pair of short sides, and the blade is located on the short sides; or the parallelogram is a rhombus, and the blade is located on any pair of opposite sides of the rhombus.

[0008] Exemplarily, a connecting hole is provided at the geometric center of the cutter body, the cutting knife is used in the cutter assembly, and the cutter body is connected to the transmission shaft of the cutter assembly through the connecting hole.

[0009] Another aspect of the present application provides a method for processing a cutting knife, and the method for processing any of the aforementioned cutting knives includes: cutting the raw material to obtain long strips, wherein the strips can be continuously arranged into a plurality of parallelograms; continuously sharpening the strips to process the blades, wherein the blades are located on the oblique sides of the parallelograms located on the outer edges of the strips; performing a first comprehensive treatment on the sharpened strips to obtain a plurality of semi-finished products; and performing a second comprehensive treatment on the semi-finished products to obtain a finished cutting knife.

[0010] Exemplarily, the strip material after the sharpening process is subjected to a first comprehensive treatment to obtain a plurality of semi-finished products, specifically including: forming and blanking the strip material after the sharpening process to be processed into a plurality of parallelogram-shaped blade bodies, on which connecting holes are formed and stamped; and bending a group of diagonals of the blade body to obtain a semi-finished product.

[0011] Exemplarily, the strip material after the sharpening process is subjected to a first comprehensive treatment to obtain a plurality of semi-finished products, specifically including: stamping and forming the strip material after the sharpening process to process it into a plurality of semi-finished products, the semi-finished products are stamped with connecting holes and bent blades, and the flat surface of the semi-finished products is a parallelogram.

[0012] Exemplarily, the semi-finished product is subjected to a second comprehensive treatment to obtain a finished cutting knife, specifically including: polishing the semi-finished product; electrolyzing the polished semi-finished product; passivating the electrolytically treated semi-finished product; and drying the passivated semi-finished product to obtain a finished cutting knife.

[0013] In yet another aspect of the present application, a tool assembly is provided, comprising: a transmission shaft, and any one of the aforementioned cutting knives, wherein the cutting knife is mounted on the transmission shaft.

[0014] Exemplarily, the number of the cutting knives is one or at least two, the at least two cutting knives are sequentially connected to the transmission shaft, and the bending directions of the blades of the at least two cutting knives are the same or opposite.

[0015] Exemplarily, the cutting blade comprises a first cutting blade, and a blade of the first cutting blade is bent in a direction away from the power end of the transmission shaft.

[0016] Exemplarily, the cutting blade also includes a second cutting blade, which is located on the side of the first cutting blade away from the power end. The blades of the second cutting blade and the first cutting blade have the same bending direction, and the blades of the second cutting blade and the first cutting blade are staggered along the circumference of the transmission shaft.

[0017] Exemplarily, the cutting blade also includes a third cutting blade, which is located on the side of the first cutting blade close to the power end, the bending directions of the blades of the third cutting blade and the first cutting blade are opposite, and the blades of the third cutting blade and the first cutting blade are staggered or overlapped along the circumference of the transmission shaft.

[0018] In yet another aspect of the present application, a food crushing device is provided, comprising: a cup body assembly, and any one of the aforementioned knife assemblies, wherein the knife assembly is installed inside the cup body assembly.

[0019] The cutting and processing methods, tool assembly and food crushing device provided in the embodiments of the present application, the cutting knife includes a knife body and a blade, the flat surface of the knife body is a parallelogram, and the blade is arranged on a pair of oblique sides of the parallelogram. By arranging the blade on a pair of oblique sides of the parallelogram, the two ends of the knife body are formed into two blades by a group of diagonal bends of the parallelogram. This arrangement allows the blade on the blade to contact the food at an inclined angle, thereby reducing the resistance of the food to the cutting knife, reducing the phenomenon of motor blocking and knife jamming, reducing the resistance encountered by the cutting knife during operation, reducing the risk of knife breakage, and extending the service life of the cutting knife. At the same time, it can reduce the risk of motor burning due to motor blocking, and increase the service life of the motor, so as to improve the reliability of the food crushing device.

[0020] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. In addition, the same reference symbols are used throughout the accompanying drawings to represent the same components. Among them:

[0022] Figure 1 This is a schematic diagram of the structure of a cutting knife disclosed in this application;

[0023] Figure 2 A schematic diagram of the structure of a tool assembly disclosed in the present application;

[0024] Figure 3 An exploded schematic diagram of a tool assembly disclosed in the present application;

[0025] Figure 4 This is a schematic structural diagram of a food crushing device disclosed in the present application;

[0026] Figure 5 A partial cross-sectional view of a food crushing device disclosed in the present application;

[0027] Figure 6 A schematic diagram of a process of a cutting knife processing method disclosed in the present application;

[0028] Figure 7 A schematic flow chart of a method for processing a first cutting knife disclosed in the present application;

[0029] Figure 8A schematic flow chart of a method for processing a second cutting knife disclosed in the present application;

[0030] Fig. 9 This is a schematic diagram of the structure of the strip material during the processing of the first cutting knife of the present application;

[0031] Fig.10 A schematic structural diagram of a blade body from one perspective during the processing of the first cutting knife of the present application;

[0032] Fig.11 A schematic structural diagram of a blade body from another perspective during the processing of the first cutting knife of the present application;

[0033] Fig.12 A schematic diagram of a blade body bending process during the processing of the first cutting knife of the present application;

[0034] Fig.13 A structural schematic diagram of a semi-finished product during the processing of the first cutting knife of the present application from one perspective;

[0035] Fig.14 A schematic structural diagram of a semi-finished product during the processing of the first cutting knife of the present application from another perspective;

[0036] Fig.15 This is a schematic diagram of the structure of the strip material during the processing of the second cutting knife of the present application;

[0037] Fig.16 A schematic structural diagram of a blade body from one perspective during the processing of the second cutting knife of the present application;

[0038] Fig.17 A schematic structural diagram of a blade body from another perspective during the processing of the second cutting knife of the present application;

[0039] Fig.18 A schematic diagram of a blade body bending process during the processing of the second cutting knife of the present application;

[0040] Fig.19 A structural schematic diagram of a semi-finished product during the processing of the second cutting knife of the present application from one perspective;

[0041] Fig. 20 This is a structural schematic diagram of a semi-finished product during the processing of the second cutting knife of the present application from another perspective.

[0042] in, Figures 1 to 20 The corresponding relationship between the reference numerals and the component names is as follows:

[0043] 100 cutting knife, 101 first cutting knife, 102 second cutting knife, 103 third cutting knife, 110 knife body, 111 blade, 111a first blade, 111b second blade, 111c third blade, 112 mounting portion, 113 connecting hole, 113a first connecting hole, 113b second connecting hole, 113c third connecting hole, 120 blade 120a first blade, 120b second blade, 120c third blade, 130 strip material, 140 blade body, 150 semi-finished product, 200 knife assembly, 210 transmission shaft, 211 power end, 212 connecting end, 300 food crushing device, 310 cup body assembly, 311 cup seat, 312 cup body, 320 driving assembly. DETAILED DESCRIPTION

[0044] In the following description, a large amount of details are provided so that the present application can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only exemplarily illustrates the preferred embodiments of the present application, and the present application can be implemented without one or more such details. In addition, in order to avoid confusion with the present application, some technical features well known in the art are not described in detail.

[0045] like Figures 1 to 20 As shown, the embodiment of the present application provides a cutting knife 100 and a processing method thereof, a knife assembly 200 and a food crushing device 300. The cutting knife 100 is used in the knife assembly 200, and the knife assembly 200 is used in the food crushing device 300 to cut and crush the food in the food crushing device 300.

[0046] like Figure 1 , Figure 2 , Figure 4 As shown, the knife assembly 200 may include a transmission shaft 210, and the cutting knife 100 is installed on the transmission shaft 210. The food crushing device 300 may include a cup body assembly 310, and a closed cooking space is formed in the cup body assembly 310. The knife assembly 200 is installed in the cooking space of the cup body assembly 310. It can be understood that the cooking space is also used to accommodate food. The food crushing device 300 may also include a driving assembly 320, and the driving assembly 320 is connected to the transmission shaft 210 of the knife assembly 200 to drive the knife assembly 200 to rotate, and the cutting knife 100 on the transmission shaft 210 is used to rotate to cut and crush the food in the cup body assembly 310. Specifically, the driving assembly 320 may include a motor, and the motor may be connected to the transmission shaft 210 of the knife assembly 200.

[0047] like Figure 4 and Figure 5As shown, since the cup body assembly 310 forms a closed cavity, the cutter assembly 200 can continuously and directionally move the broken objects (such as cut and broken food) and liquid or air downward during the rotation process. The broken objects and liquid or air will form a cycle of the cutter assembly 200, the lower part of the cutter assembly 200, the bottom of the inner wall of the cup body assembly 310, the upper part of the inner wall of the cup body 312 assembly, and the cutter assembly 200, and the broken objects are cyclically broken until the expected breaking effect is achieved. This process can be understood as a breaking cycle in which the cutter assembly 200 cuts and breaks the food, and its cycle process can be shown as follows. Figure 5 As indicated by the arrow in .

[0048] like Figure 1 As shown, the cutting knife 100 provided in the embodiment of the present application includes: a knife body 110 and a blade 120, the flat surface of the knife body 110 is a parallelogram, and the blade 120 is arranged on a pair of obtuse sides of the parallelogram, that is, the parallelogram is non-rectangular, and the four corners of the parallelogram include two acute angles and two obtuse angles, and any set of opposite sides of the parallelogram can be understood as obtuse sides. By arranging the blade 120 on a pair of oblique sides of a parallelogram, the two ends of the knife body 110 are formed into two blades 111 by a group of diagonal bends of the parallelogram. This arrangement allows the blade 120 on the blade 111 to contact the food at an inclined angle, thereby reducing the resistance of the food to the cutting knife 100, such as reducing the resistance of the food to the blade 111, so as to reduce the probability of the food getting stuck in the cutting knife 100, thereby reducing the phenomenon of motor jamming and knife jamming, reducing the resistance encountered by the cutting knife 100 during operation, reducing the risk of knife breakage, and extending the service life of the cutting knife 100. At the same time, it can reduce the risk of motor burning due to motor jamming, and increase the service life of the motor, so as to improve the reliability of the food crushing device 300.

[0049] like Figure 1 As shown, in the embodiment provided in the present application, the knife body 110 includes a mounting portion 112 connecting two blades 111, and the two blades 111 are bent toward the same side of the mounting portion 112, such as the two blades 111 can be bent toward the top of the mounting portion 112 at the same time, or the two blades 111 can be bent toward the bottom of the mounting portion 112 at the same time, so that the two blades 111 of the cutting knife 100 can more concentratedly cut and crush the food above or below the mounting portion 112 to ensure a good cutting and crushing effect.

[0050] The two blades 111 extend in a direction away from the mounting portion 112, which can increase the range of the cutting space of the cutting knife 100, thereby improving the cutting efficiency of the cutting knife 100. At the same time, since the blades 111 have a certain diversion effect on the food, the blades 111 extend in a direction away from the mounting portion 112, so that the food falling on the mounting portion 112 can be diverted and transported in a direction away from the mounting portion 112 under the guidance of the blades 111 and cut by the blade 120, thereby reducing the possibility of food accumulating on the mounting portion 112 and being unable to be cut and crushed, and improving the uniformity of food cutting and crushing.

[0051] The angle between the plane where the blade 111 is located and the plane where the mounting portion 112 is located is as follows: Fig.12 and Fig.18 As shown in α, the range of α is 20° to 70°, that is, the blade 111 is inclined relative to the plane perpendicular to the mounting portion 112, and the angle between the plane where the blade 111 is located and the plane where the mounting portion 112 is located can be understood as the blade angle, that is, the range of the blade angle α is 20° to 70°.

[0052] When the blade angle of the cutting knife 100 is large, such as when the blade 111 is close to or overlaps with the plane perpendicular to the mounting portion 112, after adding food, the blade 111 and the food are interlaced, and it is difficult for the blade 111 to pass through the food, resulting in a large resistance of the food to the blade 111, which may cause the risk of the knife getting stuck. Therefore, in this embodiment, by reasonably setting the range of the blade angle, the angle α between the plane where the blade 111 is located and the plane where the mounting portion 112 is located is in the range of 20° to 70°, so as to reduce the resistance of the food to the blade 111, reduce the risk of the knife getting stuck, and increase the service life of the cutting knife 100. At the same time, this arrangement can increase the width of the bending part of the blade 110, such as increasing the width of the connection position between the blade 111 and the mounting portion 112, thereby increasing the strength of the cutting knife 100, reducing the probability of the knife getting stuck during the cutting and crushing process, improving the food crushing effect, and reducing the risk of motor stalling, burning, and knife breakage, which is beneficial to extending the service life of the cutting knife 100 and the service life of the motor, and can enhance the user's operating experience.

[0053] Specifically, the angle α between the plane where the blade 111 is located and the plane where the mounting portion 112 is located can be set according to actual needs, such as α can be set to 20°, 40°, 60°, 70°, or any other angle.

[0054] like Figure 1 , Fig.12 and Fig.18As shown, the cutting knife 100 provided in this embodiment is arranged with the sharp angle of the parallelogram bent to form the sharp angle of the blade 111. That is, the blade body 110 is formed by bending two opposite sharp angles of the parallelogram flat surface to form two blades 111. Such an arrangement enables the width and height of the blade 111 to be reasonably arranged, so as to further improve the strength of the cutting knife 100.

[0055] It can be understood that when the flat surface of the blade body 110 is longer, the obtuse angle of the parallelogram can also be bent, that is, the acute angle of the parallelogram is located on the blade 111 and is set as the sharp angle of the blade 111, and the obtuse angle of the parallelogram can be located on the blade 111 or on the mounting portion 112.

[0056] Furthermore, when the flat surface of the blade body 110 is a parallelogram including a pair of long sides and a pair of short sides, the blade 120 can be located on the short side. This arrangement can ensure that the sizes of the mounting portion 112 and the two blades 111 of the cutting knife 100 are relatively reasonable, such as the length and width of the blades 111 are relatively reasonable, so as to ensure that the cutting knife 100 has sufficient strength and extend the service life of the cutting knife 100.

[0057] It can be understood that when the flat surface of the blade body 110 is a rhombus with four equal sides, that is, when the flat surface is a special parallelogram, the blade 120 can be located on any set of opposite sides of the rhombus.

[0058] like Figure 1 , Figure 2 and Figure 3 As shown, a connection hole 113 is provided at the geometric center of the knife body 110, wherein the cutting knife 100 is used for the knife assembly 200, and the knife assembly 200 includes a transmission shaft 210, and the transmission shaft 210 is used to connect with the driving assembly 320 of the food crushing device 300, and the knife body 110 is connected to the transmission shaft 210 through the connection hole 113, that is, the cutting knife 100 can be installed on the transmission shaft 210 through the connection hole 113, so that the rotation of the transmission shaft 210 can drive the cutting knife 100 to rotate. Since the connection hole 113 is located at the geometric center of the knife body 110, the rotation of the transmission shaft 210 can drive the cutting knife 100 to rotate smoothly, so as to ensure a good cutting effect.

[0059] The connection hole 113 can be understood as the geometric center of the parallelogram of the flat surface, and the two blades 111 are arranged symmetrically with respect to the connection hole 113. The connection hole 113 can be provided with a first limiting surface, and the transmission shaft 210 is provided with a second limiting surface. The first limiting surface and the second limiting surface cooperate with each other to limit the relative movement of the cutting blade 100 and the transmission shaft 210 in the circumferential direction, so that the rotation of the transmission shaft 210 can drive the cutting blade 100 to rotate.

[0060] Specifically, the first limiting surface and the second limiting surface can be planes, and the number of the first limiting surface and the second limiting surface can be one, two or more. Specifically, the connection space can be a flat hole, and the transmission shaft 210 can be provided with a flat shaft. It is understood that in other examples, the cutting knife 100 can be connected to the transmission shaft 210 by riveting, threaded structure, welding, etc.

[0061] like Figure 2 and Figure 3 As shown, according to another aspect of the present application, a knife assembly 200 is also provided, the knife assembly 200 includes a transmission shaft 210, and a cutting knife 100 of any of the aforementioned embodiments, the cutting knife 100 is installed on the transmission shaft 210, so that the rotation of the transmission shaft 210 can drive the cutting knife 100 to rotate, such as the cutting knife 100 can perform centrifugal motion under the rotation of the transmission shaft 210 to cut and crush the food. Since the knife assembly 200 includes the cutting knife 100 of any of the aforementioned embodiments, it can have all the technical effects of the aforementioned cutting knife 100, which will not be repeated here one by one.

[0062] like Figure 2 and Figure 3 As shown, the number of the cutting knives 100 is one or at least two, at least two cutting knives 100 are sequentially connected to the transmission shaft 210, and the bending directions of the blades 111 of at least two cutting knives 100 are the same or opposite.

[0063] That is to say, a tool assembly 200 may include one cutting knife 100, two cutting knives 100, three cutting knives 100, or different numbers of cutting knives 100 to meet the requirements of the tool assembly 200 for different cutting ranges, different cutting capacities, and different cutting efficiencies.

[0064] Among them, when the number of cutting knives 100 is two or more, multiple cutting knives 100 can be installed on the transmission shaft 210 in sequence, such as multiple cutting knives 100 are installed on the transmission shaft 210 in sequence along the axial direction of the transmission shaft 210 to increase the range of the cutting space of the tool assembly 200 and improve the cutting efficiency.

[0065] The bending directions of the blades 111 of the multiple cutting knives 100 can be the same or opposite, and the number of cutting knives 100 and the bending directions of the blades 111 of each cutting knives 100 can be reasonably designed according to actual needs. The multiple cutting knives 100 are installed on the transmission shaft 210, and the planes where the mounting parts 112 of the multiple cutting knives 100 are located are parallel to each other. The angles between the planes where the blades 111 of the multiple cutting knives 100 are located and the plane where the mounting parts 112 are located can be the same or different, that is, the blade angles of the multiple cutting knives 100 can be the same or different, and can be designed according to actual needs.

[0066] like Figure 2 and Figure 3 As shown, the cutting knife 100 includes a first cutting knife 101, and the blade 111 of the first cutting knife 101 is bent in a direction away from the power end 211 of the transmission shaft 210. The two ends of the transmission shaft 210 can be the power end 211 and the connection end 212, respectively. The power end 211 can be understood as the end of the transmission shaft 210 connected to the driving assembly 320. The cutting knife 100 can be installed on the transmission shaft 210 close to the connection end 212 of the transmission shaft 210. For example, the part of the transmission shaft 210 connected to the connection end 212 can be set as a flat shaft to facilitate the installation of the cutting knife 100.

[0067] Among them, Figure 3 As shown, the power end 211 of the transmission shaft 210 can be defined as being located below the connection end 212 of the transmission shaft 210, the blade 111 of the first cutting knife 101 can be understood as the first blade 111a, and the blade 120 of the first cutting knife 101 can be understood as the first blade 120a. In this embodiment, the blade 111 of the first cutting knife 101 is bent in a direction away from the power end 211 of the transmission shaft 210, that is, the first blade 111a of the first cutting knife 101 can be understood as being bent upward, thereby enabling the food at the position of the first blade 111a to be cut and crushed.

[0068] like Figure 2 and Figure 3 As shown, the cutting knife 100 further includes a second cutting knife 102, the blade 111 of the second cutting knife 102 can be understood as a second blade 111b, and the blade 120 of the second cutting knife 102 can be understood as a second blade 120b. The second cutting knife 102 is located on the side of the first cutting knife 101 away from the power end 211, that is, the second cutting knife 102 is located above the first cutting knife 101, and the blades 111 of the second cutting knife 102 and the first cutting knife 101 are bent in the same direction, that is, the second blade 111b of the second cutting knife 102 is bent in the direction away from the power end 211 of the transmission shaft 210, that is, the second blade 111b is bent upward, thereby being able to cut and crush the food at the position of the second blade 111b.

[0069] Specifically, since the second cutting knife 102 is located above the first cutting knife 101, during the process of processing food, after the food passes through the second cutting knife 102 located above and is crushed for the first time by the second blade 120b of the second cutting knife 102, it will flow to the first cutting knife 101 located below and be crushed for the second time by the first blade 120a of the first cutting knife 101, so as to ensure a good cutting and crushing effect.

[0070] Among them, the blades 111 of the second cutting knife 102 and the first cutting knife 101 are arranged alternately along the circumference of the transmission shaft 210, thereby avoiding the problem of interference between the blades of the first cutting knife 101 and the second cutting knife 102. At the same time, the cutting range of the entire tool assembly 200 can be increased and the cutting efficiency can be improved.

[0071] like Figure 2 and Figure 3 As shown, the cutting knife 100 also includes a third cutting knife 103, the blade 111 of the third cutting knife 103 can be understood as a third blade 111c, and the blade 120 of the third cutting knife 103 can be understood as a third blade 120c. The third cutting knife 103 is located on the side of the first cutting knife 101 close to the power end 211, that is, the third cutting knife 103 is located below the first cutting knife 101, and the bending directions of the blades 111 of the third cutting knife 103 and the first cutting knife 101 are opposite, that is, the directions of the first blade 111a and the third blade 111c are opposite, the first blade 111a is bent upward, and the third blade 111c is bent downward, thereby further increasing the range of the cutting space of the tool assembly 200 and improving the cutting efficiency.

[0072] Specifically, the tool assembly 200 may include a first cutting knife 101 and a third cutting knife 103. During the process of processing food, after the food passes through the first cutting knife 101 located above and is crushed for the first time by the first blade 120a of the first cutting knife 101, it will flow to the third cutting knife 103 located below and be crushed for the second time by the third blade 120c of the third cutting knife 103 to ensure a good cutting and crushing effect.

[0073] Specifically, Figure 2 , Figure 3 and Figure 5As shown, the tool assembly 200 may include a first cutting knife 101, a second cutting knife 102 and a third cutting knife 103. The second cutting knife 102 is located above the first cutting knife 101, and the third cutting knife 103 is located below the first cutting knife 101. Specifically, the first cutting knife 101 is installed on the transmission shaft 210 through the first connecting hole 113a, the second cutting knife 102 is installed on the transmission shaft 210 through the second connecting hole 113b, and the third cutting knife 103 is installed on the transmission shaft 210 through the third connecting hole 113c. During the process of processing food materials, when the knife assembly 200 rotates, the second cutting knife 102 located at the top of the knife assembly 200 uses the second blade 120b to perform the first crushing (such as coarse crushing) of the food materials. Due to the combined effect of the second blade 111b and other parts of the knife assembly 200, the food materials are crushed for the first time (such as coarse crushing) by the second blade 120b and then flow to the first cutting knife 101 located in the middle. The first blade 120a of the first cutting knife 101 crushes the food materials after the first crushing (such as coarse crushing) for the second time (such as fine crushing). The food materials crushed for the second time by the first cutting knife 101 will be crushed for the third time (such as fine crushing) by the third blade 120c of the third cutting knife 103 located below during the downward movement, so as to achieve three crushing of the food materials and ensure a good crushing effect. Specifically, as Figure 5 As shown, since the cup body assembly 310 forms a closed cavity, the tool assembly 200 can continuously and directionally move the crushed objects and liquid or air downward, and the crushed objects and liquid or air will form a cycle of the tool assembly 200, the lower part of the tool assembly 200, the bottom of the inner wall of the cup body assembly 310, the upper part of the inner wall of the cup body assembly 310, and the tool assembly 200, and the crushed objects are cyclically crushed until the expected crushing effect is achieved.

[0074] like Figure 4 and Figure 5 As shown, according to another aspect of the present application, the present application provides a food crushing device 300, comprising: a cup body assembly 310, and a knife assembly 200 of any of the aforementioned embodiments, wherein the knife assembly 200 is installed inside the cup body assembly 310. Since the food crushing device 300 comprises the knife assembly 200 of any of the aforementioned embodiments, it has all the effects of the aforementioned knife assembly 200.

[0075] Among them, Figure 4 and Figure 5As shown, the cup body assembly 310 may include a cup holder 311 and a cup body 312 snap-fitted onto the cup holder 311. The cup holder 311 and the cup body 312 enclose a closed cooking space, and the knife assembly 200 may be located in the cooking space. The output end of the drive assembly 320 of the food crushing device 300 is connected to the transmission shaft 210 of the knife assembly 200, such as the output shaft of the motor is connected to the transmission shaft 210, so that the motor rotates, and the transmission shaft 210 can drive the cutting knife 100 installed on the transmission shaft 210 to rotate, and the cutting knife 100 can cut and crush the food in the cooking space. Among them, the drive assembly 320 can be installed on the cup holder 311. Specifically, the food crushing device 300 can be any device that needs to cut and crush food, including but not limited to a food processor, a coffee machine, a soy milk machine, etc.

[0076] In another aspect of the present application, a method for processing a cutting blade is provided, wherein the cutting blade of any embodiment of the first aspect is processed, such as Figure 6 As shown, the processing method includes the following steps 610 to 640.

[0077] Step 610: Cut the raw material to obtain long strips, and the strips can be continuously arranged into multiple parallelograms.

[0078] Among them, the raw material can be a steel coil or other materials. The cutting process can be understood as cutting the steel coil to obtain a strip 130 of suitable size. The strip 130 refers to a material in a long strip shape, including a parallelogram, such as a rectangle, a rhombus, etc. Since the flat surface of the blade body 110 of the cutting blade 100 provided in the embodiment of the present application is a parallelogram, thus, a plurality of parallelograms can be continuously arranged through the strip 130, which can meet the continuous arrangement of the flat surface of the parallelogram of the cutting blade 100. Compared with the flat surface of the blade body being a special shape, it is beneficial to reduce the waste of cutting and save costs. At the same time, the strip 130 continuously arranges a plurality of parallelograms, so that one processing step can realize the synchronous processing of the adjacent sides of two adjacent parallelograms, which is beneficial to improve the processing efficiency. In other words, the flat surface of the blade body 110 is set to a parallelogram, which is easier to arrange and cut, improves the utilization rate of cutting, and can reduce the processing steps and reduce costs.

[0079] Specifically, the strip material 130 may be Fig. 9 and Fig.15 As shown, Fig. 9 The strip material 130 in the figure can be understood as the strip material 130 in the process of the first cutting knife 101. Fig.15The strip 130 in the figure can be understood as the strip 130 in the process of the second cutting knife 102. It can be understood that the strip 130 of the third cutting knife 103 can have the same layout as the strip 130 of the second cutting knife 102, or, in some examples, the strip 130 of the third cutting knife 103 can also have the same layout as the strip 130 of the first cutting knife 101.

[0080] Step 620: Continuously sharpen the strip to produce a cutting edge, where the cutting edge is located on the oblique side of the parallelogram located at the outer edge of the strip.

[0081] Since the blade 120 of the cutting knife 100 is located on the hypotenuse of a parallelogram on the flat surface, and the strip 130 can be arranged in a plurality of parallelograms in succession, by sharpening the outer edge of the strip 130 that coincides with the hypotenuse of the parallelogram, the hypotenuses of a plurality of parallelograms can be processed simultaneously in one process to obtain the blade 120, thereby achieving continuous sharpening. Compared with sharpening each blade body in turn with a single knife, the sharpening process is optimized, the sharpening efficiency is improved, the production efficiency is improved, and the cost is reduced. Moreover, the consistency of the blade 120 can also be improved by sharpening the strip 130 in one line.

[0082] Specifically, continuous sharpening can be understood as processing the strip material 130 parts and grinding out the blade 120 of the cutting knife 100. During this process, the multiple parallelogram blades 120 arranged on the strip material 130 can be located in a straight line, which is convenient for processing to achieve continuous sharpening and improve the consistency of the blade 120.

[0083] Specifically, Fig. 9 and Fig.15 As shown, the blade 120 is located on the oblique side of the parallelogram at the outer edge of the strip 130.

[0084] Step 630: Perform a first comprehensive treatment on the strip material after the edge sharpening process to obtain a plurality of semi-finished products.

[0085] Among them, the semi-finished product 150 can be understood as a state in which a single blade body 110 is bent into a blade 111 and the connecting hole 113 is processed. Specifically, due to structural limitations, the processing process of conventional cutting knives is usually cutting, blanking and punching, sharpening, bending and forming, post-processing, etc., among which sharpening is a production bottleneck process, which is located between blanking and punching and bending and forming blades. In this embodiment, due to the improvement of the structure of the cutting knife 100, the blade 120 is arranged on the oblique side of the parallelogram-shaped flat surface of the blade body 110, and the sharpening process can be arranged before blanking and punching, that is, the sharpening process is placed in front, thereby facilitating the processing of the semi-finished product 150 by realizing the continuous processing mode through the first comprehensive treatment, such as blanking and punching and bending and forming processes are produced through a continuous mode to realize the processing of the semi-finished product 150, which is conducive to further improving production efficiency and reducing production costs.

[0086] Step 640: Perform a second comprehensive treatment on the semi-finished product to obtain a finished cutting knife.

[0087] The finished cutting knife 100 can be understood as the finished cutting knife 100 before or after factory inspection. The finished cutting knife 100 is obtained by performing the second comprehensive treatment on the semi-finished product 150, which can ensure that the finished cutting knife 100 has sufficient strength and good processing quality, and can ensure a good yield.

[0088] Thus, the processing method of the cutting knife 100 provided in the embodiment of the present application, due to the improvement of the structure of the cutting knife 100, can obtain a long strip 130 of suitable size by cutting raw materials such as steel coils, and the strip 130 can continuously arrange multiple parallelograms to meet the requirement of continuous arrangement of the flat surface of the parallelogram of the cutting knife 100, which is conducive to reducing cutting waste compared with the flat surface of the knife body being a special shape. By continuously sharpening the strip 130, the hypotenuse of multiple parallelograms can be processed at the same time to obtain the blade 120. Compared with sharpening each knife body in turn, the sharpening process is optimized, the sharpening efficiency is improved, and the consistency of the blade 120 can be improved. By performing the first comprehensive treatment on the strip 130 after the sharpening process, a plurality of semi-finished products 150 are obtained, so that the sharpening process is advanced, and the blanking, punching and bending forming processes can be produced in a continuous mode to realize the processing of the semi-finished product 150, which is conducive to further improving production efficiency and reducing production costs. By performing the second comprehensive treatment on the semi-finished product 150 to obtain the finished cutting knife 100, it is possible to ensure that the finished cutting knife 100 has sufficient strength and good quality.

[0089] like Figure 7 As shown, in the embodiment provided in the present application, step 630 may specifically include the following methods and steps.

[0090] Step 630-1: forming and blanking the strip material after the edge sharpening process to form a plurality of parallelogram-shaped blade bodies, and forming and stamping connecting holes on the blade bodies;

[0091] Step 630 - 2 : Bend a set of diagonal corners of the blade body to obtain a semi-finished product.

[0092] In this embodiment, the strip material 130 is processed in two steps to obtain the semi-finished product 150. Specifically, the strip material 130 after the edge processing is first subjected to the blanking processing. The blanking processing can be understood as forming the strip material 130 into a blade body 140 in the shape of a parallelogram before the cutting knife 100 is bent. At the same time, the punching operation of the connection hole 113 is included. That is, through the forming and stamping operation, the blanking processing of a single blade body 140 and the processing of the connection hole 113 are integrated into one process, thereby simplifying the processing process and facilitating the improvement of processing efficiency. Then, the semi-finished product 150 can be obtained by bending a group of diagonal corners of the blade body 140.

[0093] It is understandable that, in the actual production process, appropriate tooling can be selected according to the bending direction of the blade 111 relative to the mounting portion 112, so that the bending direction of the blade 111 of the semi-finished product 150 after the bending process meets the design requirements. Specifically, the blade 111 bent upward can be obtained by bending a group of diagonal portions of the blade body 140 upward, and the blade 111 bent downward can be obtained by bending a group of diagonal portions of the blade body 140 downward.

[0094] in, Fig.10 and Fig.11 FIG. 2 shows a schematic structural diagram of a blade body 140 of a single cutting knife 100 during the processing of the first cutting knife 101 in the tool assembly 200. Fig.12 A schematic diagram showing a process of processing the first cutting blade 101, in which a group of diagonal downward bending processes are performed on the blade body 140 to form the blade 111;

[0095] Fig.13 and Fig.14 FIG. 1 shows a schematic diagram of the structure of the semi-finished product 150 during the processing of the first cutting knife 101. Specifically, Fig.12 As shown, during the bending process, the blade angle α formed between the plane where the blade 111 is located and the plane where the mounting portion 112 is located is controlled to be between 20° and 70°.

[0096] in, Fig.16 and Fig.17 FIG. 1 shows a schematic structural diagram of a blade body 140 of a single cutting blade 100 during the processing of a second cutting blade 102. Fig.18 A schematic diagram showing a group of diagonal upward bending processes of the blade body 140 to form blades 111 during the processing of the second cutting blade 102 is shown; Fig.19 and Fig. 20 FIG. 1 shows a schematic diagram of the structure of the semi-finished product 150 during the processing of the second cutting knife 102. Specifically, Fig.18 As shown, during the bending process, the blade angle α formed between the plane where the blade 111 is located and the plane where the mounting portion 112 is located is controlled to be between 20° and 70°.

[0097] It is understandable that the processing of the semi-finished product 150 of the third cutting knife 103 can be the same as the processing of the semi-finished product 150 of the second cutting knife 102, that is, the blade 111 of the third cutting knife 103 is formed by a group of diagonal upward bending processes on the blade body 140.

[0098] It is understandable that in actual application scenarios, the installation direction of the cutting knife 100 can be reasonably selected according to the bending direction of the blade 111 relative to the power end 211 of the transmission shaft 210, wherein the first cutting knife 101 is mounted on the transmission shaft 210 in a normal manner, so that the first blade 111a of the first cutting knife 101 is away from the power end 211 of the transmission shaft 210, that is, the first blade 111a faces upward, and the first cutting knife 101 is reversely mounted on the transmission shaft 210, and the first blade 111a faces downward. The second cutting knife 102 is mounted on the transmission shaft 210 in a normal manner, so that the first blade 111a of the second cutting knife 102 is close to the power end 211 of the transmission shaft 210, that is, the second blade 111b faces downward, and the second cutting knife 102 is reversely mounted on the transmission shaft 210, and the second blade 111b faces upward. The third cutting knife 103 is mounted on the transmission shaft 210 in an upright manner, with the third blade 111 c facing downward, and the third cutting knife 103 is mounted on the transmission shaft 210 in an inverted manner, with the third blade 111 c facing upward.

[0099] In this way, during the assembly process of the tool assembly 200, the first cutting knife 101 can be installed upright on the transmission shaft 210, the second cutting knife 102 can be reversed on the transmission shaft 210, and the third cutting knife 103 can be installed upright on the transmission shaft 210, so that the blades 111 of the first cutting knife 101 and the second cutting knife 102 are in the same direction and face upward, the blades 111 of the third cutting knife 103 and the first cutting knife 101 are in opposite directions, and the blades 111 of the third cutting knife 103 are oriented to ensure that the bending direction of the blades 111 of each cutting knife 100 meets the design requirements.

[0100] like Figure 8 As shown, in some other embodiments provided in the present application, step 630 may include the following methods and steps.

[0101] Step 630-3: The strip material after the blade sharpening process is subjected to stamping and forming process to be processed into a plurality of semi-finished products. The semi-finished products are stamped with connecting holes and bent blades, and the flat surface of the semi-finished products is a parallelogram.

[0102] In this embodiment, the steps of blanking, processing of the connection hole 113, and bending of the blade 111 are integrated into one process. Specifically, by stamping the strip material 130 after the blade sharpening process, the strip material 130 can be stamped into the shape of the blades 111 of the multiple cutting knives 100 after bending. At the same time, the punching operation of the connection hole 113 is included, which further simplifies the processing process and is conducive to improving the processing efficiency.

[0103] It is understandable that in the actual production process, appropriate tooling can be selected according to the bending direction of the blade 111 relative to the mounting portion 112, so that the bending direction of the blade 111 of the semi-finished product 150 after the stamping process meets the design requirements. Specifically, the blade 111 of the semi-finished product 150 after the press forming process can be bent upward or downward.

[0104] like Figure 7 and Figure 8 As shown, in the embodiment provided in this application, step 640 may include the following steps:

[0105] Step 640-1: polishing the semi-finished product;

[0106] Step 640-2: electrolytically treating the semi-finished product after polishing;

[0107] Step 640-3: performing passivation treatment on the semi-finished product after the electrolysis treatment;

[0108] Step 640 - 4 : Drying the semi-finished product after the passivation treatment to obtain a finished cutting knife.

[0109] In this embodiment, the finished cutting blade 100 can be obtained by performing polishing, electrolysis, passivation, and drying on the semi-finished product 150 , so as to achieve processing of the cutting blade 100 .

[0110] Among them, the polishing process can reduce the surface roughness of the semi-finished product 150 workpiece to obtain a bright and flat surface, which is beneficial to reducing the resistance of the cutting knife 100.

[0111] Among them, the electrolytic treatment can improve the surface quality and performance of the semi-finished product 150 , and can more evenly process the surface roughness and flatness, further reducing the resistance of the cutting blade 100 .

[0112] Among them, the passivation treatment can improve the service life and processing quality of the cutting blade 100.

[0113] The drying process can remove moisture from the surface of the cutting knife 100 , thereby ensuring that the cutting knife 100 will not be affected by residual moisture during subsequent use or transportation.

[0114] Specifically, after the drying process, the cutting blade 100 may be subjected to other processes according to actual needs, such as Figure 7 and Figure 8 As shown, step 640 also includes the following methods and steps after step 640-4.

[0115] Step 640-5: riveting the finished cutting knife after drying;

[0116] Step 640-6: Perform factory inspection on the cutting knife after riveting.

[0117] Among them, riveting can ensure the connection strength and stability between the cutting blade 100 and the transmission shaft 210 or other components.

[0118] Among them, the factory inspection can conduct a comprehensive inspection of the cutting knife 100 to ensure the quality and safety of the cutting knife 100, thereby improving production efficiency and ensuring the safety of workers.

[0119] In the description of this application, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the terms "upper" and "lower" indicate positions or positional relationships based on the positions or positional relationships described in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they cannot be understood as limitations on this application. The terms "connect", "install", "fixed", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0120] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. 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 present application. In the present application, 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0121] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cutting knife, characterized in that: include: The blade body and the blade are parallelogram-shaped. The blade is arranged on a pair of oblique sides of the parallelogram. The two ends of the blade body are formed into two blades by bending a group of diagonal corners of the parallelogram.

2. The cutting knife according to claim 1, characterized in that: The blade body includes a mounting portion connecting the two blades, the two blades are bent toward the same side of the mounting portion and extend in a direction away from the mounting portion, and the angle between the plane where the blades are located and the plane where the mounting portion is located is 20° to 70°.

3. The cutting knife according to claim 2, characterized in that: The acute angles of the parallelogram are bent to form the sharp corners of the blade.

4. The cutting knife according to claim 1, characterized in that: The parallelogram comprises a pair of long sides and a pair of short sides, and the blade is located on the short sides; or The parallelogram is a rhombus, and the blade is located on any set of opposite sides of the rhombus.

5. The cutting knife according to claim 1, characterized in that: A connecting hole is arranged at the geometric center of the knife body. The cutting knife is used in a knife assembly. The knife body is connected to the transmission shaft of the knife assembly through the connecting hole.

6. A method for processing a cutting knife, processing the cutting knife as claimed in any one of claims 1 to 5, characterized in that: The processing method comprises: The raw material is cut into pieces to obtain long strips, wherein the strips can be continuously arranged into a plurality of parallelograms; Continuously sharpening the strip to form a blade, the blade being located on the oblique side of the parallelogram located at the outer edge of the strip; Performing a first comprehensive treatment on the strip material after the edge sharpening treatment to obtain a plurality of semi-finished products; The semi-finished product is subjected to a second comprehensive treatment to obtain a finished cutting knife.

7. The method for processing a cutting blade according to claim 6, characterized in that: The first comprehensive treatment is performed on the strip material after the edge sharpening treatment to obtain a plurality of semi-finished products, specifically including: The strip material after the edge sharpening is subjected to forming and blanking processing to be processed into a plurality of blade bodies in the shape of parallelograms, and the blade bodies are formed and punched with connecting holes; A set of diagonal corners of the blade body are bent to obtain the semi-finished product.

8. The method for processing a cutting knife according to claim 6, characterized in that: The first comprehensive treatment is performed on the strip material after the edge sharpening treatment to obtain a plurality of semi-finished products, specifically including: The strip material after the blade sharpening is subjected to stamping and forming to be processed into a plurality of the semi-finished products. The semi-finished products are stamped with connecting holes and bent blades, and the flat surface of the semi-finished products is the parallelogram.

9. The method for processing a cutting blade according to claim 6, characterized in that: The semi-finished product is subjected to a second comprehensive treatment to obtain a finished cutting knife, specifically comprising: Polishing the semi-finished product; Performing electrolytic treatment on the semi-finished product after polishing; Passivating the semi-finished product after the electrolytic treatment; The semi-finished product after the passivation treatment is dried to obtain the finished cutting knife.

10. A tool assembly, characterized in that: include: A transmission shaft, and a cutting knife as claimed in any one of claims 1 to 5, wherein the cutting knife is mounted on the transmission shaft.

11. The tool assembly according to claim 10, characterized in that The number of the cutting knives is one or at least two, at least two of the cutting knives are sequentially connected to the transmission shaft, and the bending directions of the blades of at least two of the cutting knives are the same or opposite.

12. The tool assembly according to claim 11, characterized in that The cutting blade comprises a first cutting blade, and the blade of the first cutting blade is bent in a direction away from the power end of the transmission shaft.

13. The tool assembly according to claim 12, characterized in that The cutting knife also includes a second cutting knife, which is located on a side of the first cutting knife away from the power end. The blades of the second cutting knife and the first cutting knife have the same bending direction, and the blades of the second cutting knife and the first cutting knife are staggered along the circumference of the transmission shaft.

14. The tool assembly according to claim 12 or 13, characterized in that The cutting knife also includes a third cutting knife, which is located on a side of the first cutting knife close to the power end. The bending directions of the blades of the third cutting knife and the first cutting knife are opposite, and the blades of the third cutting knife and the first cutting knife are staggered or overlapped along the circumference of the transmission shaft.

15. A food crushing device, characterized in that: include: A cup body assembly, and a knife assembly according to any one of claims 10 to 14, wherein the knife assembly is installed inside the cup body assembly.

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