Food processor

Abstract

The utility model discloses a food processing machine to solve the technical problems that an existing food processing machine is low in smashing efficiency and large in noise. The food processor comprises a cup body, a cutter and a brushless motor. Wherein the cup body is provided with a processing cavity; the cutter is arranged at the bottom of the processing cavity; two opposite sides of the blade are respectively provided with a first cutting edge and a second cutting edge; the brushless motor is arranged at the bottom of the cup body and is connected with the cutter; the brushless motor has the functions of driving the cutter to rotate and immediately switching the rotating direction; under the condition that the cutter rotates around the first rotating direction, the first cutting edge can coarsely crush food materials in the processing cavity; and under the condition that the cutter is switched to rotate in the second rotating direction, the second cutting edge can finely crush the food materials in the processing cavity, and the rotating speed of the first cutting edge or the second cutting edge driven by the brushless motor ranges from 3000 rpm to 12000 rpm. Therefore, the crushing device has the advantages of being good in crushing fineness, high in crushing efficiency and low in crushing noise.

Description

Technical Field

[0001] The present application relates to the technical field of food processing machines, and in particular, to a food processing machine. Background Art

[0002] In existing products, food processors generally use a series motor to drive the cutter to rotate in a single direction to crush the food. Correspondingly, each blade in the cutter is sharpened in the same direction on one side to cooperate with the rotation direction to perform the crushing work. For example, in the prior art CN 219629451 U, the crushing cutter reverses the back of the cutter to contact the food to make granular and sticky food; or, as in the prior art CN 116509220 A, the first motor only drives the crushing cutter to rotate at a low speed or high speed in a single direction to wash or beat the food. However, the above scheme still has defects. For example, after the food in the processing chamber is driven by the cutter to rotate, due to inertial motion or interference from the spoiler structure, the food and the cutter collide less, and the food processor needs to stir for a longer time to improve the crushing fineness or clean thoroughly; the food processor usually uses the method of rotating the cutter at a high speed to improve the collision and crushing efficiency of the food and the blade, but long-term high-speed operation will bring a great burden to the motor and shorten the life of the motor; the high-intensity noise generated by long-term high-speed operation will also reduce the user's experience; in order to solve the problem of motor heating caused by long-term high-speed operation, the food processor needs to match the long-term low-speed operation state, or set up a fan or other heat sink to dissipate the heat of the motor, but this will greatly extend the slurry production time of the food processor and increase the production and manufacturing cost of the food processor. In addition, the existing food processor is equipped with higher spoiler ribs to achieve a better crushing effect, which will also cause inconvenience for users to clean.

[0003] Therefore, existing products are in urgent need of a food processor with efficient pulping and low noise, so as to improve pulping efficiency, reduce noise volume, maintain or even further improve the fineness of pulping, and enhance user experience. Utility Model Content

[0004] The purpose of the present application is to provide a food processor, which can achieve high-efficiency fine crushing of the food processor, reduce crushing noise, and improve user experience through the cooperation of a brushless motor and a bidirectional blade.

[0005] The embodiment of the present application is implemented as follows:

[0006] The first aspect of the embodiment of the present application provides a food processing machine, including a cup body, a cutter and a brushless motor. The cup body has a processing cavity; the cutter is arranged at the bottom of the processing cavity; the cutter has at least one blade, and the two opposite sides of the blade have a first blade and a second blade respectively; the brushless motor is arranged at the bottom of the cup body and connected to the cutter; the brushless motor has the function of driving the cutter to rotate and switching the rotation direction instantly; when the cutter rotates around the first rotation direction, the first blade can roughly crush the food in the processing cavity; when the cutter switches to the second rotation direction, the second blade can finely crush the food in the processing cavity, and the first blade or the second blade driven by the brushless motor rotates at a speed of 3000rpm-12000rpm.

[0007] In one embodiment, the thickness of the first blade is greater than the thickness of the second blade.

[0008] In one embodiment, the blade has a first surface and a second surface relative to each other; a first cutting edge corresponding to the first blade is disposed on the first surface, and a second cutting edge corresponding to the second blade is disposed on the second surface; the first cutting edge and the second cutting edge are inclined relative to the surface of the blade and face opposite directions.

[0009] In one embodiment, the first cutting edge and the second cutting edge are parallel to each other.

[0010] In one embodiment, the absolute value of the difference between the width of the first cutting edge and the width of the second cutting edge is less than 2 mm.

[0011] In one embodiment, the first cutting edge faces the bottom of the processing chamber, and the second cutting edge faces the top of the processing chamber.

[0012] In one embodiment, the tip of each blade is inclined toward the bottom of the processing chamber relative to the root of the blade, and the inclination angle is 5° to 10°.

[0013] In one embodiment, the first blade and / or the second blade is arc-shaped, and an extension line of the arc passes through the rotation axis of the tool.

[0014] In one embodiment, the first blade and / or the second blade is a serrated structure.

[0015] In one embodiment, at the horizontal plane where the root of the blade is located, the inner diameter of the processing cavity is 100 mm-135 mm.

[0016] Compared with the prior art, the present application has the following beneficial effects: the present application realizes the coarse and fine crushing of the food in the processing chamber by the food processor by setting a bidirectional blade on the blade of the tool and driving the rotation with a brushless motor. The present application realizes the stable and flexible switching of the rotation direction of the tool by a brushless motor. The tool coarsely crushes the food when rotating in the first rotation direction, and further finely crushes the food when switching to the second rotation direction. It can effectively improve the crushing quality and crushing efficiency of the food processor when finely crushing the food, reduce the crushing particle size and crushing noise, and enhance the user experience.

[0017] In addition, the present application also ensures that the direction of liquid flow on both sides of the blade in the processing chamber is basically in the same straight line by setting the cutting edge of the bidirectional blade in parallel, superimposing the relative impact speed between the food and the blade, reducing the traction force of the liquid flow on the knife shaft in the horizontal direction, thereby reducing the swing amplitude and noise of the tool and extending the service life of the food processor; the present application also sets the tip of the knife to be inclined toward the bottom of the processing chamber relative to the root of the knife, so that when the knife rotates, it can lift the food or clean water to a higher place on the cup wall, thereby achieving higher quality crushing and cleaning, so as to effectively reduce the motor speed, reduce the self-heating of the motor, and reduce the noise of the food processor during crushing and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a structural schematic diagram of a food processing machine according to an embodiment of the present application;

[0020] Figure 2 A schematic top view of a food processing machine according to an embodiment of the present application;

[0021] Figure 3 for Figure 1 A local enlarged schematic diagram of the middle A;

[0022] Figure 4 A top side view of a tool shown as an embodiment of the present application;

[0023] Figure 5 A bottom side view of a tool shown in an embodiment of the present application;

[0024] Figure 6 A schematic top view of a tool according to an embodiment of the present application.

[0025] Icons: 1-food processor; 2-knife tool; 21-blade; 211-first blade; 212-second blade; 221-first surface; 222-second surface; 231-first cutting edge; 232-second cutting edge; 241-tip position; 242-root position; 25-rotation axis; 3-brushless motor; 4-cup body; 40-processing chamber. DETAILED DESCRIPTION

[0026] The terms “first”, “second”, “third”, etc. are only used for distinguishing descriptions and do not indicate the order of arrangement, nor can they be understood as indicating or implying relative importance.

[0027] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the products of the present application are usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0029] In the description of this application, unless otherwise clearly specified and limited, the terms "set", "installed", "connected" and "connected" 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0030] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings.

[0031] See also Figure 1 to Figure 2 , Figure 1 This is a structural schematic diagram of a food processing machine 1 according to an embodiment of the present application; Figure 2 FIG. 1 is a schematic top view of a food processing machine 1 according to an embodiment of the present application. Figure 1 to Figure 2 As shown, the present application provides a food processor 1, comprising a cup body 4, a cutter 2 and a brushless motor 3. The cup body 4 has a processing cavity 40; the cutter 2 is arranged at the bottom of the processing cavity 40; the brushless motor 3 is arranged at the bottom of the cup body 4 and connected to the cutter 2, and the brushless motor 3 has the function of driving the cutter 2 to rotate and instantly switching the rotation direction.

[0032] Specifically, the tool 2 has at least one blade 21, and each blade 21 has a first blade 211 and a second blade 212 on opposite sides thereof; when the brushless motor 3 drives the tool 2 to rotate in a first rotation direction (forward rotation), the first blade 211 can roughly crush the food in the processing chamber 40; when the brushless motor 3 drives the tool 2 to switch from the first rotation direction to the second rotation direction (reverse rotation), the second blade 212 can finely crush the food in the processing chamber 40, and the first blade 211 or the second blade 212 driven by the brushless motor 3 to rotate at a speed of 3000rpm-12000rpm. Preferably, the first blade 211 driven by the brushless motor 3 to rotate in the first rotation direction has a speed of 8000rpm to 9000rpm (including 8000rpm and 9000rpm), and the second blade 212 driven by the brushless motor 3 to rotate in the second rotation direction has a speed of 3000rpm.

[0033] In the embodiment of the present application, each blade 21 of the cutter 2 is provided with a bidirectional cutting edge, that is, the two opposite sides of each blade 21 are in a sharpened state. Therefore, no matter in which direction the brushless motor 3 drives the blade 21 to rotate, the cutter 2 can effectively cut the food by the collision between the blade on any side and the food, thereby realizing the crushing function of the food processor 1. When the cutter 2 rotates around the first rotation direction, the food in the processing chamber 40 is crushed by the first blade 211, and when the cutter 2 switches to rotate in the second rotation direction, the food in the processing chamber 40 is crushed by the second blade 212.

[0034] In a crushing process, the main control chip in the food processor 1 first drives the brushless motor 3 to drive the cutter 2 to roughly crush the food in the first rotation direction (cut by the first blade 211). After the cutter 2 rotates in the first rotation direction for a certain period of time, the direction of the liquid flow in the processing chamber 40 is the same as the rotation direction of the cutter 2, both of which are the first rotation direction, and the liquid flow speed in the processing chamber 40 is gradually synchronized with the speed V1 of the cutter 2; then, the main control chip drives the brushless motor 3 to switch the rotation direction, and the brushless motor 3 drives the cutter 2 to switch from the first rotation direction to the second rotation direction, and the cutter 2 crushes the food in the second rotation direction (cut by the second blade 212), and the rotation speed is V2. At this time, the liquid in the processing chamber 40 is still maintained at the initial speed V1 in the first rotation direction due to inertia, and when the cutter 2 is maintained at the rotation speed V2 in the second rotation direction, the relative collision speed V between the second blade 212 and the food is actually the superposition of the inertia speed V1 of the food and the current speed V2 of the cutter 2, that is, V=V1+V2. Thus, the brushless motor 3 drives the cutter 2 to rotate in the first direction first and then instantly switches to rotate in the second direction, which can effectively improve the pulverizing efficiency and pulverizing quality of the food processor 1 .

[0035] Based on the above scheme, the present application realizes the coarse and fine crushing of the food materials in the processing chamber 40 by the food processor 1 by setting a bidirectional blade on the blade 21 of the cutter 2 and driving the rotation with the brushless motor 3. The present application realizes the stable and flexible switching of the rotation direction of the cutter 2 by the brushless motor 3. The cutter 2 coarsely crushes the food materials when rotating in the first rotation direction, and further finely crushes the food materials when the cutter 2 switches from the first rotation direction to the second rotation direction. The essence of crushing is the collision between the blade of the cutter 2 and the food materials. The relative collision speed between the food materials and the cutter 2 is further superimposed and improved when the cutter 2 switches the rotation direction, so as to reduce the crushing particle size and crushing noise. The present application improves the crushing efficiency and crushing quality of the food processor 1 by alternating the forward and reverse rotation of the cutter 2, realizes the purpose of high-quality and efficient fine crushing of the food processor 1 under low speed conditions, effectively avoids the motor overheating problem caused by the brushless motor 3 maintaining a high speed for a long time, and can extend the service life of the food processor 1 and improve the user experience.

[0036] In one embodiment, the thickness of the second blade 212 is less than that of the first blade 211 to improve the cutting ability of the blade 21, so that after the cutter 2 roughly crushes the food by the first blade 211 in the first rotation direction, it can further cut the food and reduce the particle size of the food by the second blade 212 after switching to the second rotation direction. Optionally, the thickness of the first blade 211 does not exceed 0.2 mm, and the thickness of the second blade 212 does not exceed 0.1 mm.

[0037] In one embodiment, the tip position 241 of each blade 21 is inclined toward the bottom of the processing chamber 40 relative to the root position 242, and the inclination angle is 5° to 10°. Preferably, the inclination angle α is set to 8° to 9° (for example, 8.71°). The tip position 241 of each blade 21 is inclined toward the bottom of the processing chamber 40 relative to the root position 242, but the inclination is relatively gentle, so that during the rotation of the cutter 2, the liquid or clean water can be raised to a higher degree to the cup wall, which plays a good turbulent role, prevents the liquid food from entering the state of synchronous rotation with the blade 21 too quickly, or can be cleaned to a higher place on the cup wall of the processing chamber 40 during cleaning, further improving the crushing quality, crushing efficiency and cleaning quality of the food processor 1.

[0038] Optionally, the angle β between the extension line of the line from the blade root to the blade tip (or the extension line of the line from the blade tip to the blade root) of each blade 21 and the inner side wall of the processing cavity 40 is 88°. The height distance h1 between the first intersection point of the extension line of the line and the inner side wall of the processing cavity 40 and the cup mouth of the cup body 4 is about 148 mm; the height distance h2 between the second intersection point of the extension line of the line and the inner side wall of the processing cavity 40 and the cup mouth of the cup body 4 is about 165 mm.

[0039] See also Figure 3, Figure 3 for Figure 1 A local enlarged schematic diagram of the middle point. Figure 3 As shown, the blade 21 has a first surface 221 and a second surface 222 that are opposite and parallel; a first cutting edge 231 corresponding to the first blade 211 is provided on the first surface 221, and a second cutting edge 232 corresponding to the second blade 212 is provided on the second surface 222, and the first cutting edge 231 and the second cutting edge 232 are inclined relative to the surface of the blade 21 and face opposite directions. Specifically, the first cutting edge 231 faces the bottom of the processing chamber 40, and the second cutting edge 232 faces the top of the processing chamber 40. The inclined and oppositely facing cutting edges can knock the food to the bottom of the cup or lift it to the side wall when colliding with the food, thereby enhancing the food processor 1's ability to crush the food; the second cutting edge 232 facing the top of the processing chamber 40 facilitates the food processor 1 to lift clean water to the cup wall for sufficient flushing when performing the cleaning work, thereby improving the cleaning quality and cleaning efficiency of the food processor 1.

[0040] In a crushing process, the brushless motor 3 drives the cutter 2 to rotate in the first rotation direction and preliminarily cuts the food through the first blade 211. After the first blade edge 231 facing the bottom wall of the processing chamber 40 collides with the food, the food is hit to the bottom of the cup for further crushing. After the second blade edge 232 facing the processing chamber 40 collides with the food, the food is lifted to the side wall. While further crushing the food through the collision with the side wall, the falling food disturbs the rotating liquid flow to slow down the speed of the liquid flow entering synchronous rotation with the cutter 2. Then, the brushless motor 3 drives the cutter 2 to switch from the first rotation direction to the second rotation direction, and the food is finely cut through the second blade 212. At this time, the relative collision speed between the food and the cutter 2 is superimposed due to the inertial rotation of the liquid food and the actual rotation of the cutter 2. The food processor 1 can cut the food at a higher relative collision speed. The first blade edge 231 and the second blade edge 232 also hit the food to the bottom of the cup or lift it to the side wall at a higher relative collision speed. Thus, the tool 2 can improve the crushing quality and crushing efficiency of the food processor 1 by rotating alternately in the first rotation direction and the second rotation direction. The height and slope of the spoiler ribs on the inner wall of the processing chamber 40 can also be reduced by switching the spoiler effect of the tool 2 after the steering, or even eliminating the spoiler ribs to facilitate the cleaning of the processing chamber 40 and the cup lid.

[0041] In one embodiment, the first cutting edge 231 and the second cutting edge 232 are parallel to each other. Specifically, the absolute value of the difference between the width a of the first cutting edge 231 and the width b of the second cutting edge 232 is less than 2 mm, and the optimal value of the width a of the first cutting edge 231 and the width b of the second cutting edge 232 is 3-8 mm. Optionally, the angle between the first cutting edge 231 and the second surface 222 is 22° to 23° (including 22° and 23°, preferably 22.38°), and the angle between the second cutting edge 232 and the first surface 221 is 21° to 22° (including 21° and 22°, preferably 21.19°). The first cutting edge 231 and the second cutting edge 232 are parallel to each other, so that the liquid flows in opposite directions and on the same straight line. Therefore, when the brushless motor 3 drives the cutter 2 to switch the rotation direction, the impact effect of the first cutting edge 231 and the second cutting edge 232 on the food is the effect of the superposition of the food speed and the cutter 2 speed. The parallel arrangement of the first cutting edge 231 and the second cutting edge 232 can also reduce the traction force of the liquid flow on the knife shaft in the horizontal direction, thereby reducing the swing amplitude of the knife 2 and the noise generated when the brushless motor 3 drives the knife 2 to rotate, thereby extending the service life of the food processor 1.

[0042] In one embodiment, at the horizontal plane where the root position 242 of the blade 21 (i.e., the upper surface of the tool 2) is located, the inner diameter of the processing cavity 40 is 100mm-135mm, preferably 112mm; in one embodiment, the maximum inner diameter of the processing cavity 40 does not exceed 130mm, preferably, the maximum inner diameter of the processing cavity 40 is approximately 127mm.

[0043] See also Figures 4 to 6 , Figure 4 A top side view of a tool 2 shown in an embodiment of the present application; Figure 5 A bottom side view of a tool 2 shown in an embodiment of the present application; Figure 6 The top view of the tool 2 is shown in one embodiment of the present application. In one embodiment, the first blade 211 and / or the second blade 212 are sawtooth structures; the first blade 211 and / or the second blade 212 are arc-shaped, and the arc extension line passes through the rotation axis 25 of the tool 2.

[0044] like Figures 4 to 6 As shown, the first blade 211 of each blade 21 is a serrated structure to increase the collision area between the first blade 211 and the food, enhance the cutting ability of the first blade 211, and reduce the particle size; in addition, the first blade 211 of each blade 21 is arranged in an arc shape, and the extension line of the arc passes through the rotation axis 25 of the cutter 2. The arrangement of the arc extension line passing through the rotation axis 25 can further reduce the particle size of the food crushed by the first blade 211, thereby improving the crushing ability and crushing effect of the food processor 1.

[0045] Based on the above scheme, the present application ensures that the directions of the liquid flows on both sides of the blade 21 in the processing chamber 40 are basically in the same straight line by setting the cutting edges of the bidirectional blades parallel to each other, superimposing the relative impact speed between the food and the blade 21, reducing the traction of the liquid flow on the knife shaft in the horizontal direction, thereby reducing the swing amplitude and noise of the tool 2 and extending the service life of the food processor 1; the present application also sets the tip of the knife to be inclined toward the bottom of the processing chamber 40 relative to the root of the knife, so that the tool 2 can lift the food or clean water to a higher place on the cup wall when it rotates, thereby achieving higher quality crushing and cleaning, so as to effectively reduce the motor speed, reduce the self-heating of the motor, reduce the noise of the food processor 1 during crushing and cleaning, and improve the user experience.

[0046] The rotation principle of the brushless DC motor and the control method of the food processor 1 are described in detail below.

[0047] The operation of the brushless DC motor is achieved by the magnetism of the stator energized solenoid pulling the magnet on the rotor to rotate. When the U, V, and W three-phase stator energized solenoids are energized in sequence, they will pull the rotor magnet to rotate. When the energized solenoids operate in the manner of U→V→W, the stator magnetic field rotates in the first direction, that is, it pulls the rotor magnet to rotate in the first direction (forward direction); when the energized solenoids operate in the manner of W→V→U, the stator magnetic field rotates in the second direction, that is, it pulls the rotor magnet to rotate in the second direction (reverse direction); when the brushless DC motor needs to stop running, it only needs to energize the stator solenoid of a single phase to pull the magnet to stop at the position of the corresponding phase. For example, during the rotation of the motor, when only the W-phase stator solenoid is energized, the rotor magnet will be attracted by the W-phase magnetic field and stop immediately.

[0048] The control method of the food processor 1 includes a pulping control method and a cleaning control method.

[0049] With regard to the pulping control method, after starting the pulping work, the food processor 1 first quickly heats the liquid food in the processing chamber 40 to the set temperature based on a larger heating power (for example, 1200W), and then heats the liquid food to boiling based on medium power, and then boils it with low power; after the low-power boiling is completed, the food processor 1 controls the brushless motor 3 to drive the cutter 2 to stir at a speed of 8000rpm for 20s in the first rotation direction (forward), stops for 5s, and repeats this cycle 15 times; then, the food processor 1 controls the brushless motor 3 to drive the cutter 2 to stir at a speed of 9000rpm for 10s in the first rotation direction. After 10s of stirring, the brushless motor 3 is immediately controlled to drive the cutter 2 to switch to the second rotation direction and stir at a speed of 3000rpm for 5s, and then stops for 5s. After 10 cycles, the food processor 1 completes the pulping work and starts to discharge the pulp.

[0050] In the above pulping process, when the cutter 2 crushes the food material at a speed of 9000rpm in the first rotation direction, since the food material is in a stationary state when the cutter 2 starts to rotate, the liquid food material will continue to maintain a stationary state due to the inertia effect. After the cutter 2 rotates for 5s, the food material slurry will begin to rotate with the cutter 2. Therefore, the first 5s after the cutter 2 starts to rotate is a high-efficiency crushing state, at which time the relative collision speed between the first blade 211 and the liquid food material is 9000rpm. After the cutter 2 rotates for 5s, the food material crushing ability gradually weakens as the relative rotation speed between the food material and the first blade 211 decreases. When the relative collision speed between the food material and the cutter 2 is 0, the crushing ability basically disappears. Based on the actual turbulence state of the product of the food processor 1, about 8s after the cutter 2 starts to rotate, the relative collision speed between the food material and the cutter 2 is reduced to the minimum, and an additional 2s are reserved for stabilization, and then the brushless motor 3 is controlled to drive the cutter 2 to switch to the second rotation direction to beat the food material.

[0051] At 10 seconds after the cutter 2 starts to rotate, the food processor 1 controls the brushless motor 3 to drive the cutter 2 to switch from forward rotation (rotating in the first rotation direction) to reverse rotation (rotating in the second rotation direction). At this time, the slurry in the processing chamber 40 is affected by inertia and still rotates at a speed of 9000rpm in the first rotation direction, while the cutter 2 is driven by the brushless motor 3 and rotates at a speed of 3000rpm in the second rotation direction, that is, the relative collision speed between the food and the second blade 212 is 12000RPM. At this time, the food is whipped with a significantly increased relative collision speed, so that the crushed particle size reaches a higher fineness, and the crushing efficiency and crushing capacity of the food processor 1 are significantly improved. Therefore, the food processor 1 achieves a more delicate pulping effect by the relatively medium-speed forward rotation (9000RPM), the relatively low-speed reverse rotation (3000RPM) and the efficient turbulence caused by switching the rotation direction of the cutter 2.

[0052] After the cutter 2 is driven by the brushless motor 3 and rotates at a speed of 3000rpm in the second rotation direction for 4s, the relative collision speed between the food and the cutter 2 (the second blade 212) is reduced to the minimum, and an additional 1s is reserved for stabilization. When the cutter 2 is driven by the brushless motor 3 and rotates at a speed of 3000rpm in the second rotation direction for the 5th second, the cutter 2 stops rotating. At this time, the relative collision speed between the first blade 211 and the food is 3000RPM, and the cutter 2 can crush the food more evenly. After the cutter 2 stops rotating for 5s, the slurry is basically stable, and the food processor 1 controls the brushless motor 3 again to drive the cutter 2 to cut the food at a speed of 9000rpm in the first rotation direction, and so on. In the above pulping process, the slurry in the processing chamber 40 is in a cycle state of static → forward → reverse → static, and the cutter 2 continues to cut the food based on the switching mode of the first blade 211 → the second blade 212 → the first blade 211 → the second blade 212. Through the food processor 1 provided by the present application and the above-mentioned pulping method, the food processor 1 can achieve a more efficient crushing effect with lower noise and finer particle size for food at a relatively low rotation speed; in addition, the turbulence in the pulping process is mainly achieved by switching the rotation direction of the tool 2, and the spoiler ribs on the inner wall of the processing chamber 40 of the food processor 1 can reduce the convex size and slope, or even remove the spoiler ribs to facilitate the cleaning of the food processor 1.

[0053] For the cleaning control method, the food processor 1 takes in 200 mL of water after the pulping is completed, and heats it to a specified temperature or does not heat it. Then, the food processor 1 controls the DC brushless motor to drive the cutter 2 to rotate in the second rotation direction to clean the cutter 2 and the inner wall (bottom wall and side wall) of the processing chamber 40. According to the cleaning speed test before leaving the factory, the cutter 2 rotates at a speed of more than 7500 rpm in the second rotation direction, and the clean water can be raised to the top of the processing chamber 40 (the cup cover) for flushing, that is, the effect of cleaning the entire cavity can be achieved. In the actual cleaning work, the food processor 1 adds an additional 500 rpm cleaning speed margin, and drives the cutter 2 to rotate at a speed of 8000 rpm in the second rotation direction for 25 seconds, stops rotating for 5 seconds, and discharges the water in the processing chamber 40 after 5 cycles. The food processor 1 realizes the rising of clean water through the tilted setting of the second cutting edge 232 and the blade 21, and only needs to use a relatively low speed to achieve the flushing and cleaning of the entire processing chamber 40 and even the cup cover with clean water.

[0054] The above-mentioned cleaning cycle can also be executed multiple times at different water temperatures. For example, the food processor 1 does not heat the clean water before the first round of knife reversal (rotation in the second rotation direction) for circulating cleaning (i.e. after the first 200 mL of water is fed in); the food processor 1 heats the clean water to 65°C before the second round of knife reversal for circulating cleaning (i.e. after the second 200 mL of water is fed in); the food processor 1 heats the clean water to 85°C before the third round of knife reversal for circulating cleaning (i.e. after the third 200 mL of water is fed in); the food processor 1 heats the clean water to 75°C before the fourth round of knife reversal and circulating cleaning; finally, the food processor 1 ends the cleaning work after the fourth round of circulating cleaning.

[0055] 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 food processing machine, characterized in that: include: A cup body having a processing cavity; A tool, the tool being arranged at the bottom of the processing chamber; The tool has at least one blade, and two opposite sides of the blade respectively have a first cutting edge and a second cutting edge; A brushless motor, which is disposed at the bottom of the cup body and connected to the cutter; the brushless motor has the function of driving the cutter to rotate and instantly switching the rotation direction; When the cutter rotates about the first rotation direction, the first blade can roughly crush the food in the processing chamber; When the tool is switched to rotate in the second rotation direction, the second blade can finely crush the food in the processing chamber, and the first blade or the second blade is driven to rotate by the brushless motor at a speed of 3000rpm-12000rpm.

2. The food processing machine according to claim 1, characterized in that The thickness of the first blade is greater than the thickness of the second blade.

3. The food processing machine according to claim 1, characterized in that The blade has a first surface and a second surface opposite to each other; A first cutting edge corresponding to the first blade is disposed on the first surface, and a second cutting edge corresponding to the second blade is disposed on the second surface. The first cutting edge and the second cutting edge are inclined relative to the surface of the blade and face in opposite directions.

4. The food processing machine according to claim 3, characterized in that The first cutting edge and the second cutting edge are parallel to each other.

5. The food processor according to claim 4, characterized in that The absolute value of the difference between the width of the first cutting edge and the width of the second cutting edge is less than 2 mm.

6. The food processor according to claim 3, characterized in that The first cutting edge faces the bottom of the processing chamber, and the second cutting edge faces the top of the processing chamber.

7. The food processor according to claim 1, characterized in that The tip position of each blade is inclined toward the bottom of the processing chamber relative to the root position of the blade, and the inclination angle is 5° to 10°.

8. The food processing machine according to any one of claims 1 to 7, characterized in that: The first blade and / or the second blade is arc-shaped, and an extension line of the arc passes through the rotation axis of the tool.

9. The food processor according to claim 1, characterized in that The first blade and / or the second blade is a serrated structure.

10. The food processor according to claim 1, characterized in that At the horizontal plane where the root of the blade is located, the inner diameter of the processing cavity is 100mm-135mm.

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