Intelligent control juicer

Abstract

The invention relates to an intelligent control juicer which comprises a hopper, a pre-cutting assembly, an extrusion assembly, an extrusion screw and a motor, and when it is detected that the motor is reduced from meeting the working load to not meeting the working load, the motor is controlled to rotate in the reverse direction and then recover to rotate in the forward direction; the forward rotation is recovered, and when it is detected that the motor does not meet the working load, it is judged that the materials are completely extruded and work is stopped; the pre-cutting assembly and the extrusion screw rod are recovered to rotate in the forward direction, when it is detected that the motor recovers to meet the working load and it is judged that the motor is reduced from meeting the working load to not meeting the working load, the sharp end pricks the material, the material is separated in the reverse rotation process of the pre-cutting assembly, and the pre-cutting assembly and the extrusion screw rod are continuously driven to rotate in the forward direction to machine the material. According to the technical scheme, when the motor rotates forwards, the working load is reduced from meeting to not meeting, and whether the motor is in a no-load state after normal juicing is completed or in an idle state when materials are pricked into the tip end of the cutting edge is distinguished, so that normal completion of juicing work is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of food processors, and particularly to a juicer with intelligent control. Background Art

[0002] The juice extractor is developed on the basis of a conventional juicer. Its main function is to turn fruits into juice to improve the taste and facilitate drinking. Compared with a juicer, it obtains juice by low-speed screw extrusion. The lower the extrusion speed, the better. It slowly squeezes out the juice like squeezing a towel, without damaging the fruit cell structure, and the fruit nutrition is preserved. Moreover, low-speed juice extraction does not generate high heat, and also avoids the problem of juice oxidation due to heat. In the related art, a motor is combined with a speed reduction structure to output slow speed and large torque to meet the large torque required for slow squeezing by the screw.

[0003] In order to make the juicing effect better, a technical solution in the prior art discloses a feeding cylinder with a pre-cutting component and a screw installed below the feeding cylinder. For example, the patent application number of the applicant is CN202323192008.6, which discloses that a first cutting edge and a second cutting edge are installed in the feeding cylinder. The first cutting edge extends along the upper surface of the bottom plate of the feeding cylinder, and the second cutting edge extends upward in a curved manner. When the material is put in, the second cutting edge and the first blocking part on the inner wall of the feeding cylinder cooperate to complete a primary pre-cutting, cutting the whole fruit material put into the feeding cylinder into large pieces of material; the material continues to run downward, and the first cutting edge completes a secondary pre-cutting on the material, cutting the large pieces of material into small pieces of material. By arranging the first cutting edge and the second cutting edge in the feeding cylinder to cut the material into small pieces of material before entering the screw, the extrusion and juicing efficiency of the screw is greatly improved. However, the technical problem existing in the above technical solution is that although the first cutting edge and the second cutting edge are installed in the feeding cylinder for pre-cutting the material, the extrusion and juicing efficiency of the screw is greatly improved; but due to the relatively sharp shape at the upper end of the second cutting edge extending upward in a spiral and curved manner; therefore, when a whole fruit or large pieces of material are put into a large-diameter feeding cylinder, it is possible that the upper end of the second cutting edge pierces into the middle part of the material or other easily pierced parts of the material. At this time, the load changes from the normal working load to the no-load rotation load (changing from large to small); and the no-load after normal juicing is also changed from the normal juicing working load to the no-load (changing from large to small). Since both are changes from large load to small load, therefore, it may cause the machine to rotate idly after piercing the material and mistakenly think that the juicing is over and stop, and finally make the whole fruit or large pieces of material remain in the feeding cylinder. It can be understood that there are also some patents in the prior art that disclose technical solutions of a feeding cylinder with a pre-cutting component and a screw installed below the feeding cylinder.

[0004] Therefore, there are the following technical problems: Since it is difficult to distinguish between the no-load after normal juicing and the no-load rotation load when the material pierces into the tip of the cutting edge, it is easy to cause the whole fruit or large pieces of material to remain in the feeding cylinder. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligently controlled juicer to solve the technical problem that whole fruits or large pieces of material may remain in the feed barrel due to the difficulty in distinguishing between the idle load after normal juicing and the idle load caused by the material piercing the tip of the cutting edge.

[0006] In order to solve the above technical problems, the present invention provides an intelligently controlled juicer, comprising:

[0007] A hopper, the hopper is used to hold whole fruit materials and is provided with a pre-cutting assembly, the pre-cutting assembly includes a cutting edge with a tip portion extending upwardly in a spiral, and the pre-cutting assembly rotates forward to meet the material and cut the material with the tip portion;

[0008] An extrusion assembly, which is arranged below the hopper and includes an extrusion screw drivingly connected to the pre-cutting assembly;

[0009] a motor, driving the pre-cutting assembly and the extrusion screw to rotate forwardly, and when detecting that the motor is reduced from satisfying the workload to not satisfying the workload, controlling the motor to drive the pre-cutting assembly and the extrusion screw to rotate in the opposite direction for a first preset time, and then resuming forward rotation;

[0010] The pre-cutting assembly and the extrusion screw resume forward rotation, and it is detected that the motor does not maintain the working load, and it is determined that the material has been extruded and stops working;

[0011] The pre-cutting assembly and the extrusion screw resume forward rotation, and when it is detected that the motor resumes to meet the workload and it is determined that the motor has decreased from meeting the workload to not meeting the workload, the tip pierces the material and the material has been detached during the reversal process of the pre-cutting assembly, and continues to drive the pre-cutting assembly and the extrusion screw to rotate forward to process the material.

[0012] Preferably, the tip portion is provided with a material-receiving surface convexly extending radially outward, and the inner wall of the hopper is provided with blocking ribs.

[0013] The motor drives the pre-cutting assembly to rotate in the opposite direction for the first preset time length, and the radial distance between the pre-cutting assembly and the blocking rib gradually decreases during the process of rotating from the back material surface to the outer end of the tip portion, so as to separate the material that has penetrated into the tip portion.

[0014] Preferably, after the pre-cutting assembly and the extrusion screw resume forward rotation for a second preset time, it is detected that the motor resumes to meet the extrusion load,

[0015] When it is determined that the motor is reduced from satisfying the workload to not satisfying the workload, the tip portion pierces the material and the material has been separated during the reversal process of the pre-cutting component, and continues to drive the extrusion screw to rotate forward to extrude the material.

[0016] Preferably, the pre-cutting assembly and the extrusion screw rotate forward for a third preset duration, and it is detected that the motor resumes satisfying the cutting load.

[0017] When it is determined that the motor decreases from satisfying the working load to not satisfying the working load, the tip pierces the material and the material has separated during the reverse rotation of the pre-cutting assembly, and the extrusion screw is continuously driven to rotate forward to extrude the material.

[0018] Preferably, when the pre-cutting assembly and the extrusion screw are driven to rotate forward, and it is detected that the motor decreases from satisfying the working load to not satisfying the working load, the motor is immediately controlled to drive the pre-cutting assembly and the extrusion screw to rotate backward for the first preset duration.

[0019] Preferably,

[0020] After continuously driving the pre-cutting assembly and the extrusion screw to rotate forward to process the material, the intelligent control juicer further includes:

[0021] It is detected that the motor decreases from satisfying the working load to not satisfying the working load again. After the motor is controlled to drive the pre-cutting assembly and the extrusion screw to rotate backward for the first preset duration, it resumes rotating forward;

[0022] It is detected that the motor maintains not satisfying the working load, and it is determined that the material has been processed and the work is stopped.

[0023] Preferably, after continuously driving the pre-cutting assembly and the extrusion screw to rotate forward to process the material, the intelligent control juicer further includes:

[0024] It is detected that the motor decreases from satisfying the working load to not satisfying the working load again. After the motor is controlled to drive the pre-cutting assembly and the extrusion screw to rotate backward for the first preset duration, it resumes rotating forward;

[0025] It is detected that the motor resumes satisfying the working load again. When it is determined that the motor decreases from satisfying the working load to not satisfying the working load again, the tip pierces the material for the second time and the material has separated during the reverse rotation of the pre-cutting assembly, and the pre-cutting assembly and the extrusion screw are continuously driven to rotate forward to process the material.

[0026] Preferably, when entering the extrusion stage of driving the extrusion screw to rotate forward to extrude the material, the extrusion screw rotates continuously forward until the extrusion stage is completed. It is detected that the motor decreases from satisfying the working load to not satisfying the working load, and the motor is controlled to drive the pre-cutting assembly and the extrusion screw to rotate backward for the first preset duration.

[0027] Preferably, the intelligently controlled juicer further comprises a voltage detection module and a current detection module for detecting the motor load, and a power value is obtained by combining the voltage detection module and the current detection, and the load value of the motor is detected according to the power value.

[0028] Preferably,

[0029] The pre-cutting assembly and the extrusion screw resume forward rotation, detect that the motor maintains no load that does not meet the workload, determine that the material has been extruded, and reduce the motor speed to continue forward rotation for a fourth preset time before stopping.

[0030] The beneficial effects of the present invention are:

[0031] 1. The present invention provides an intelligently controlled juicer, which detects the change of the motor load value when the motor rotates forward. When the load value decreases from satisfying the working load to not satisfying the working load (the load changes from large to small), the motor is controlled to reverse with the pre-cutting component and the extrusion screw. If the tip is pierced with material, the material can be separated from the tip during the reversal process, and the state of the tip piercing the material is released. After the material is scraped from the tip, it can be normally cut by the pre-cutting component in the hopper, and enter the extrusion screw to complete the extrusion and juicing after the cutting is completed, thereby effectively ensuring that the material pierced into the tip is completely squeezed. At the same time, by detecting whether the motor meets the working load after resuming forward rotation, it is identified that the motor still does not meet the working load (the load is always small), that is, the material has been squeezed and the juicing is completed; the motor resumes to meet the working load (the load changes from small to large again), that is, the material pierced by the tip has been separated, And continue to process the material; that is to say, by detecting the motor load after resuming forward rotation, it is possible to distinguish whether the motor is in a no-load state after the normal completion of juicing, or in an idling state where the material pierces the tip of the cutting edge, when the motor rotates forward and the workload is reduced from satisfying the workload to not satisfying the workload. This allows the juicer to obtain the correct feedback signal, and the state of the material piercing the tip is intelligently identified. After the identification, the juicing work is ensured to be completed normally, and whole fruits or large pieces of material are avoided from remaining in the feed barrel, which greatly improves the user experience. Therefore, a method is adopted in which the workload is greater than the no-load and piercing load, and based on the change from a large load to a small load, a large load change is used for the reversal operation, and a state judgment is made based on the load recovery after the reversal, so as to intelligently identify whether the state of the juicer is no-load after the juicing is completed or idling after piercing. This judgment method with a large load change is more significant.

[0032] 2. Based on the fact that the tip is radially outwardly convex with a back material surface, the inner wall of the hopper is provided with a blocking rib. The motor drives the pre-cutting assembly to rotate reversely for a first preset duration. During the process of rotating from the back material surface to the outer end of the tip, the radial distance from the back material surface to the blocking rib gradually decreases, so as to separate the material stuck in the tip. During the reverse rotation, the material will successively pass through two cutting edges on the blocking rib. The surfaces of the blocking rib and the back material surface that are oppositely arranged are inclined, so that the material brings two different distances when passing through the two cutting edges, and the back material surface and the two cutting edges interact with each other, causing the material to loosen twice. Therefore, due to the change in the distance between the back material surface and the blocking rib, and by using the material guiding effect generated by the cooperation of the two cutting edges and the tip, the stuck material can be separated, thus ensuring that the material stuck in the tip can also be effectively squeezed out.

[0033] 3. By detecting that the motor again changes from meeting the working load to not meeting the working load, after controlling the motor to drive the pre-cutting assembly and the extrusion screw to rotate reversely for a first preset duration, then resume forward rotation; when detecting that the motor resumes meeting the working load again and determining that the motor changes from meeting the working load to not meeting the working load again, the tip secondarily pierces the material and the material has been separated during the reverse rotation of the pre-cutting assembly, and then continue to drive the pre-cutting assembly and the extrusion screw to rotate forward to process the material. That is to say, starting from the whole fruit material being put into the feed bin, after experiencing piercing the material and the material being separated from the tip, another whole fruit material is put in and piercing occurs, and after piercing, the material is separated again. The juicer obtains the correct feedback signal, enabling effective identification of multiple materials being pierced at the tip at different stages. Even if the juicer pierces the material multiple times, it can be recognized, further ensuring the normal completion of the juicing work and greatly enhancing the juicing experience throughout the process.

[0034] 4. Based on entering the extrusion stage where the extrusion screw rotates forward to extrude the material, the extrusion screw continuously rotates forward until the extrusion stage is completed. When detecting that the motor changes from meeting the working load to not meeting the working load, control the motor to drive the pre-cutting assembly and the extrusion screw to rotate reversely for a first preset duration. That is to say, perhaps multiple whole fruit materials start to enter the extrusion stage where some materials have been extruded from the feed bin. At this moment, the situation of a certain fruit being pierced occurs, and after piercing, the material is separated by reversing, so that in the first half of the entire juicing process, the whole fruits that have not been pierced can be normally juiced, ensuring the smoothness of the first half of the juicing process. At the same time, the state of a certain fruit being pierced in the middle can be effectively identified, ensuring that all materials can be squeezed out, thus ensuring the normal completion of the juicing work while ensuring the smoothness of the juicing process.

[0035] 5. Based on the forward rotation of the driving pre-cutting component and the extrusion screw, when it is detected that the motor changes from meeting the working load to not meeting the working load, immediately control the motor to drive the pre-cutting component and the extrusion screw to rotate in the reverse direction for a first preset duration; since the direction of the forward rotation speed and the direction of the reverse rotation speed are opposite, the speed acting on the cutting edge is the rotational speed difference between the forward rotation speed and the reverse rotation speed. The stuck material is subjected to inertial forces in two different directions on the tip part and sways back and forth, causing the material to become loose on the tip part. When the cutting edge drives the material during the reverse rotation, due to the loosening of the material, it can easily break away from the tip part, thereby achieving the purpose of the motor rotating from forward to reverse to make the material stuck on the tip part break away. Brief Description of the Drawings

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 It is a schematic cross-sectional view of a smart-controlled juicer in one embodiment of the present invention.

[0038] Figure 2 It is Figure 1 a schematic cross-sectional view of the shown hopper and the pre-cutting component.

[0039] Figure 3 It is Figure 2 an enlarged schematic view of the shown position A.

[0040] Figure 4 It is Figure 2 a schematic cross-sectional view of another perspective.

[0041] Figure 5 It is Figure 4 an enlarged schematic view of the shown position B.

[0042] The names of the components marked in the drawings are as follows:

[0043] 1. Hopper; 11. Blocking rib; 111. First side; 112. Second side; 113. Inclined surface; 114. First cutting edge; 115. Second cutting edge; 2. Cutting edge; 21. Tip part; 211. Backing material surface; 3. Extrusion screw; 4. Motor. Detailed Embodiments

[0044] The following further elaborates on the present invention in detail in conjunction with the drawings and specific embodiments.

[0045] In the prior art, the adopted solution is that a first cutting edge and a second cutting edge are installed in the feeding cylinder. The first cutting edge extends along the upper surface of the bottom plate of the feeding cylinder, and the second cutting edge extends upward in a curved manner. When the material is put in, the second cutting edge cooperates with the first blocking part on the inner wall of the feeding cylinder to complete a primary pre-cutting, cutting the whole fruit material put into the feeding cylinder into large pieces of material; the material continues to run downward, and the first cutting edge completes a secondary pre-cutting on the material, cutting the large pieces of material into small pieces of material. By arranging the first cutting edge and the second cutting edge in the feeding cylinder, the material is cut into small pieces of material before entering the screw, greatly improving the extrusion and juicing efficiency of the screw. Although the pre-cutting of the material in the feeding cylinder greatly improves the extrusion and juicing efficiency of the screw; however, due to the relatively sharp shape at the upper end of the second cutting edge extending upward in a spiral curve; therefore, when whole fruits or large pieces of material are put into a large-diameter feeding cylinder, it is possible that the upper end of the second cutting edge pierces into the middle part of the material or other easily pierceable parts of the material. At this time, the load changes from the normal working load to the no-load rotation load (changing from large to small); and the no-load after normal juicing is also changed from the normal juicing working load to the no-load (changing from large to small). Since both are changes from large load to small load, these two states are difficult to be intelligently recognized; therefore, it may cause the machine to rotate idly after jamming and mistakenly think that the machine stops after juicing is completed, and finally the whole fruits or large pieces of material remain in the feeding cylinder.

[0046] For a given motor, the original juice extractor aims to perform constant speed control (especially for brushless motors) to achieve better juicing effects. Due to differences in manufacturing and installation (such as motor manufacturing differences and drive installation differences of mating components like the screw in the whole machine), for machines of the same batch (the same model), when each motor maintains the same speed, the no-load power of different machines is not unique (i.e., it fluctuates within a range), resulting in an overlap between machines with no-load power at the upper limit and those at the lower limit. Specifically, there is an overlap between the no-load data ranges detected for some machines of the same model and the load data ranges detected during idling with materials jammed for other machines. This is a problem discovered by the applicant during a large number of industrial production processes and is also unexpected by those skilled in the art. For multiple machines of the same model, the set control programs are generally the same, and only then is the problem of non-unique detected no-load power discovered. If a fixed program is set for a single machine to directly detect these two loads, no-load and material jamming, the cost is high, so this method is generally not adopted. However, due to manufacturing differences and other reasons among machines of the same batch, the no-load power fluctuates, making it difficult to set a universal program to detect all machines. Therefore, instead of detecting small load changes (insignificant) to solve the problem, this application uses a method that satisfies the working loads (extrusion load and cutting load) being larger than the no-load and material jamming loads. Based on the change from a large load to a small load, a large load change amount is used for reverse operation, and a state judgment is made based on the load recovery after reverse rotation to intelligently identify whether the state of the juicer is no-load after juicing is completed or idling after material jamming. This method of judging by a large load change amount is more significant.

[0047] The prior art discloses solving the problem of slag blockage in the juice collection cavity by reverse rotation. The application number is CN202321354380.X, and the utility model name is "A food processor with good use effect". It discloses that there is a feed hopper above the juice collection cavity, and a cutting knife extends into the feed hopper. The cutting knife includes a first cutting knife that extends obliquely upward and outward, and a second cutting knife that extends horizontally outward. When there is material blockage or abnormal rotation in the juice collection cavity, the motor rotates in reverse to make the material move upward and become loose, and after the reverse rotation of the motor is completed, it continues to rotate forward to process the food ingredients. The applicant has also studied the method of reverse rotation. When there is material blockage in the juice collection cavity of the prior art, the detected load value of the motor must be greater than the load value during normal operation, and it rotates in reverse under the condition of overloading; while in this application, when the material jams into the upper end of the first cutting knife and idles, the load is lower than the load value during normal operation, and it rotates in reverse under the condition of light load, and a state intelligent identification is made based on the load recovery after reverse rotation. The technical means adopted by the prior art and this application are different. The prior art is applicable to the scenario of reverse rotation for slag blockage, and this application rotates in reverse when changing from meeting the working load to not meeting the working load (from a large load to a small load). The prerequisite scenarios for reverse rotation and the technical problems to be solved are also completely different. Therefore, those skilled in the art have no motivation to combine the prior art.

[0048] In order to solve the technical problem in the prior art that it is difficult to distinguish between the idle load after the normal juicing and the idle load when the material pierces the tip of the cutting edge 2, which makes it difficult to complete the juicing work normally. The present invention provides an intelligently controlled juicer, please refer to Figures 1-5 The intelligently controlled juice extractor of the present invention comprises a hopper 1, an extrusion assembly, a pre-cutting assembly and a motor 4, wherein the extrusion assembly comprises a screw, and the pre-cutting assembly comprises a cutting edge 2.

[0049] The hopper 1 is used to hold whole fruit materials and is provided with a pre-cutting assembly, the pre-cutting assembly includes a cutting edge 2 with a tip portion 21 extending upwardly in a spiral manner, and the pre-cutting assembly forwardly rotates the tip portion 21 to meet the material and cut the material; the extrusion assembly is arranged below the hopper 1, and includes an extrusion screw 3 drivingly connected to the pre-cutting assembly;

[0050] The motor 4 drives the pre-cutting assembly and the extrusion screw 3 to rotate forwardly, and when the motor 4 detects that the workload is reduced from satisfying the workload to not satisfying the workload, the motor 4 is controlled to drive the pre-cutting assembly and the extrusion screw 3 to rotate in the opposite direction for a first preset time, and then resumes forward rotation;

[0051] The pre-cutting assembly and the extrusion screw 3 resume forward rotation, and it is detected that the motor 4 does not maintain the working load, and it is determined that the material has been extruded and stops working;

[0052] The pre-cutting assembly and the extrusion screw 3 resume forward rotation, and when it is detected that the motor 4 resumes to meet the workload and it is determined that the motor 4 has decreased from meeting the workload to not meeting the workload, the tip portion 21 pierces the material and the material has been detached during the reversal process of the pre-cutting assembly, and continues to drive the pre-cutting assembly and the extrusion screw 3 to rotate forward to process the material.

[0053] It should be noted that not meeting the working load, that is, the load value is less than the working load, means being in a light load or no-load state. Meeting the working load includes extrusion load and cutting load. The extrusion load refers to the load of the motor 4 detected when the material is squeezed out of the extrusion screw 3, and the cutting load refers to the load of the motor 4 detected when only the material put into the hopper 1 is cut; generally speaking, the cutting load is less than the extrusion load.

[0054] It can be understood that when the motor 4 rotates forward, by detecting the change of the load value of the motor 4, when the load value decreases from meeting the working load to not meeting the working load (the load decreases from large to small), the motor 4 is controlled to drive the pre-cutting assembly and the extrusion screw 3 to rotate in reverse. If the tip 21 is stuck with materials, during the reverse rotation, the materials can be detached from the tip 21, the state of the tip 21 being stuck with materials is released, and after the materials are scraped off from the tip 21, they can be normally cut by the pre-cutting assembly in the hopper 1. After the cutting is completed, they enter the extrusion screw 3 to complete the extrusion and juicing, so as to effectively ensure that all the materials stuck into the tip 21 are juiced out; at the same time, by detecting whether the motor 4 meets the working load after resuming forward rotation, it is recognized that the motor 4 still maintains not meeting the working load (the load is always small), that is, the materials have been extruded and juiced; the motor 4 resumes meeting the working load (the load increases from small to large again), that is, the materials stuck by the tip 21 have been detached, and the materials continue to be processed; that is to say, by detecting the load of the motor 4 after resuming forward rotation, it is distinguished whether the motor 4 decreases from meeting the working load to not meeting the working load during forward rotation, which is the no-load state after normal juicing completion or the idling state when the materials are stuck into the cutting edge 2 tip, so that the juicer can obtain the correct feedback signal, the state of the tip 21 being stuck with materials is intelligently recognized, and after the recognition, the juicing work is ensured to be completed normally, avoiding the whole fruit or large pieces of materials remaining in the feeding cylinder, and greatly improving the user experience.

[0055] The present application uses the tip 21 to crush materials, and at the same time, when the tip is stuck with materials, the motor drives the tip to rotate in reverse to get the stuck materials out of the tip; therefore, the tip is used for material crushing during forward rotation and combines with reverse rotation to release the state of being stuck with materials, which is difficult for those skilled in the art to think of. In order to solve the problem of the tip being stuck with materials, those skilled in the art generally easily think about how to change the structural form of the cutting edge, and it is very difficult to think of continuing to use the tip of the cutting edge to combine with reverse rotation to release the state of being stuck with materials without changing the structure of the cutting edge.

[0056] In order to solve the problem of the materials stuck by the tip 21 being detached during reverse rotation, it can be achieved by the cooperation between the tip 21 and the inner wall of the hopper 1, or by the state switching from forward rotation to reverse rotation, and using the speed difference to detach the materials stuck on the tip 21.

[0057] In one embodiment, as Figures 2-5 shown, to achieve the release of the tip 21 being stuck with materials through the cooperation between the tip 21 and the inner wall of the hopper 1, the tip 21 is radially outwardly convex with a material-receiving surface 211, the inner wall of the hopper 1 is provided with a blocking rib 11, and the motor 4 drives the pre-cutting assembly to rotate in reverse for the first preset duration. During the process of the material-receiving surface 211 rotating to the outer end of the tip 21, the radial distance from the blocking rib 11 gradually decreases to detach the materials stuck into the tip 21.

[0058] It can be understood that the blocking rib 11 is arranged near the bottom of the hopper 1. The blocking rib 11 includes a first side surface 111 and a second side surface 112 which are vertically arranged, and an inclined surface 113 arranged between the first side surface 111 and the second side surface 112 (the back material surface 211 is arranged oppositely). The inclined surface 113 inclines from top to bottom towards the radial inner side and gradually inclines towards the radial outer side along the positive rotation direction. A first cutting edge 114 is arranged at the connection of the inclined surface 113 and the first side surface 111, and a second cutting edge 115 is arranged at the connection of the inclined surface 113 and the second side surface 112. The first cutting edge 114 protrudes more towards the radial inner side relative to the second cutting edge 115. During the reverse rotation of the tip 21, during the reverse rotation of the cutting edge 2, the radial distance between the back material surface 211 and the blocking rib 11 gradually decreases when the back material surface 211 rotates to the outer end of the tip 21; during the reverse rotation, the material will pass through the second cutting edge 115 and the first cutting edge 114 in sequence. Since the distance between the second cutting edge 115 and the back material surface 211 of the tip 21 is still relatively large, the material stuck on the tip 21 can be loosened. When passing through the first cutting edge 114, the distance between the first cutting edge 114 and the back material surface 211 decreases, and the material is further loosened. Until the outer end of the tip 21 passes through the first cutting edge 114, the distance between the first cutting edge 114 and the outer end of the tip 21 is the smallest, and the material is completely detached from the tip 21 after being loosened twice before. That is to say, through the change of the distance between the back material surface 211 and the blocking rib 11 during the reverse rotation process, and by using the material pushing effect generated by the cooperation of the two cutting edges and the tip 21, the stuck material can be detached, so as to ensure that the material stuck in the tip 21 can also be effectively squeezed out.

[0059] In another embodiment, the material stuck on the tip 21 is detached by using the rotational speed difference. The pre-cutting assembly and the extrusion screw 3 are driven to rotate forward. When the detection motor 4 changes from meeting the working load to not meeting the working load, the motor 4 is immediately controlled to drive the pre-cutting assembly and the extrusion screw 3 to rotate reversely for the first preset duration.

[0060] It can be understood that when it is detected that the motor 4 changes from meeting the working load to not meeting the working load (the load changes from large to small), the motor 4 is controlled to immediately change from forward rotation to reverse rotation. The direction of the forward rotation speed is opposite to the direction of the reverse rotation speed. The speed acting on the cutting edge 2 is the rotational speed difference between the forward rotation speed and the reverse rotation speed. The stuck material is affected by two inertial forces in different directions on the tip 21, so that the material is loosened on the tip 21. When the cutting edge 2 drives the material at the moment of reverse rotation, the material can be easily detached from the tip 21 due to the loosening of the material, thus realizing the purpose of detaching the material stuck on the tip 21 by changing the motor 4 from forward rotation to reverse rotation.

[0061] It should be noted that the workload to be satisfied includes an extrusion load and a cutting load. After the forward rotation is restored, the motor 4 is detected to restore the satisfied workload after different time periods, and the detected load values will be different. If the load of the motor 4 is detected after a short time period after the forward rotation, the material separated from the tip 21 is only cut by the pre-cutting component in the hopper 1 and has not fallen into the extrusion screw 3 section yet, and the detected load is the cutting load. If the load of the motor 4 is detected after a long time period after the forward rotation, the material separated from the tip 21 may have fallen into the extrusion screw 3 section and been extruded after being cut, and the detected load is the extrusion load.

[0062] In one embodiment, after a long time period after the forward rotation, the load of the motor 4 is detected. After a second preset time period after the pre-cutting component and the extrusion screw 3 are restored to forward rotation, when it is detected that the motor 4 restores to satisfy the extrusion load and it is determined that the motor 4 decreases from the satisfied workload to the unsatisfied workload, the tip 21 pierces the material and the material has separated during the reverse rotation of the pre-cutting component, and the extrusion screw 3 is continuously driven to rotate forward to extrude the material.

[0063] It can be understood that after the second preset time period of restoring the forward rotation, when it is detected that the motor 4 restores to satisfy the extrusion load, the material pierced by the tip 21 has fallen into the extrusion screw 3 section and been extruded after being cut in the hopper 1. The extrusion load is greater than the cutting load, and the extrusion load is obtained when detecting the load of the motor 4. After the forward rotation is restored, it is detected that the motor 4 changes from the unsatisfied workload to the extrusion load (the load increases from small to large), that is, the material pierced by the tip 21 has separated and enters the extrusion screw 3 to process the material. It is recognized that when the motor 4 rotates forward, it decreases from the satisfied workload to the unsatisfied workload, which is the idling state where the material pierces the tip of the cutting edge 2, so that the juicer can obtain a correct feedback signal, ensure the normal completion of the juicing work, and avoid the situation that the juicer stops working before the material is completely juiced, greatly improving the user experience.

[0064] In another embodiment, after a short time period after the forward rotation, the load of the motor 4 is detected. After a third preset time period after the pre-cutting component and the extrusion screw 3 are restored to forward rotation, when it is detected that the motor 4 restores to satisfy the cutting load and it is determined that the motor 4 decreases from the satisfied workload to the unsatisfied workload, the tip 21 pierces the material and the material has separated during the reverse rotation of the pre-cutting component, and the extrusion screw 3 is continuously driven to rotate forward to extrude the material.

[0065] It can be understood that the second preset duration is greater than the third preset duration. After the third preset duration of restoring forward rotation, it is detected that the motor 4 resumes to meet the cutting load. The material separated from the tip 21 is only cut by the pre-cutting component in the hopper 1 and has not fallen into the extrusion screw 3 section. When detecting the load of the motor 4, only the cutting load can be detected. After resuming forward rotation, it is detected that the motor 4 changes from not meeting the working load to the cutting load (the load changes from small to large), that is, the material pierced by the tip 21 has separated. It is recognized that when the motor 4 rotates forward, the working load decreases from meeting the working load to not meeting the working load, which is the idling state when the material pierces into the tip of the cutting edge 2. The juicer obtains the correct feedback signal to ensure the normal completion of the juicing work and avoid the situation that the juicer stops working before the material is completely juiced, greatly improving the user experience.

[0066] It should be noted that during the operation of the juicer, there may be the following multiple working conditions: after resuming forward rotation, the situation of material jamming occurs again when feeding materials again; or, after resuming forward rotation, the juicing work is normally completed and the load changes from large to small again; or, when multiple whole fruits are put in at the same time and some materials have entered the extrusion screw 3 and are being extruded, if a whole fruit in the middle gets jammed, since there are still materials that can be extruded or cut, the detected load of the motor 4 always meets the working load value, and it is necessary to wait until other whole fruits are juiced before the problem of material jamming can be recognized; or, if a whole fruit is just put in and jams into the tip 21, the state of material jamming can be recognized immediately.

[0067] In one embodiment, after resuming forward rotation, the juicing work is normally completed and the load changes from large to small again.

[0068] Step 1: Put whole fruit materials into the hopper 1, drive the pre-cutting component and the extrusion screw 3 to rotate forward. When it is detected that the motor 4 changes from meeting the working load to not meeting the working load, control the motor 4 to drive the pre-cutting component and the extrusion screw 3 to rotate backward for the first preset duration and then resume forward rotation;

[0069] Step 2: The pre-cutting component and the extrusion screw 3 resume forward rotation. When it is detected that the motor 4 resumes to meet the working load, it is determined that when the motor 4 changes from meeting the working load to not meeting the working load, the tip 21 pierces the material and the material has separated during the reverse rotation of the pre-cutting component, and continue to drive the pre-cutting component and the extrusion screw 3 to rotate forward to process the material;

[0070] Step 3: Detect that the motor 4 changes from meeting the working load to not meeting the working load again, control the motor 4 to drive the pre-cutting component and the extrusion screw 3 to rotate backward for the first preset duration and then resume forward rotation;

[0071] Step 4: Detect that the motor 4 maintains not meeting the working load, determine that the material has been processed and stop working.

[0072] It can be understood that during the forward rotation juicing process of the whole fruit material, the tip 21 pierces the material. When it is detected that the load of the motor 4 decreases from meeting the working load to not meeting the working load (changes from large to small), after reversing for the first preset duration, it resumes forward rotation. When it is detected that the load of the motor 4 resumes from not meeting the working load to meeting the working load again (changes from small to large), after forward rotation for processing the material for a period of time, the material has been squeezed and juiced, and it is detected that the load of the motor 4 decreases from meeting the working load to not meeting the working load (changes from large to small), and then it stops working. That is to say, starting from the whole fruit material being put into the hopper, after piercing the material to the material separating from the tip 21, the normal juicing work is completed. Since the juicer obtains the correct feedback signal, the state of the material being pierced by the tip 21 is effectively identified, effectively ensuring the normal completion of the juicing work and avoiding the situation that the juicer stops working before the material is fully juiced, greatly improving the user experience.

[0073] In another embodiment, after resuming forward rotation, the situation of piercing the material occurs again.

[0074] Step 1: Put the whole fruit material into the hopper 1, drive the pre-cutting assembly and the extrusion screw 3 to rotate forward. When it is detected that the motor 4 decreases from meeting the working load to not meeting the working load, control the motor 4 to drive the pre-cutting assembly and the extrusion screw 3 to rotate backward for the first preset duration, and then resume forward rotation;

[0075] Step 2: The pre-cutting assembly and the extrusion screw 3 resume forward rotation. When it is detected that the motor 4 resumes meeting the working load, it is determined that when the motor 4 decreases from meeting the working load to not meeting the working load, the tip 21 pierces the material and the material has separated during the reverse rotation of the pre-cutting assembly, and continue to drive the pre-cutting assembly and the extrusion screw 3 to rotate forward to process the material;

[0076] Step 3: After resuming forward rotation, another whole fruit material is put in. When it is detected that the motor 4 decreases from meeting the working load to not meeting the working load again, control the motor 4 to drive the pre-cutting assembly and the extrusion screw 3 to rotate backward for the first preset duration, and then resume forward rotation;

[0077] Step 4: When it is detected that the motor 4 resumes meeting the working load again, it is determined that when the motor 4 decreases from meeting the working load to not meeting the working load again, the tip 21 pierces the material for the second time and the material has separated during the reverse rotation of the pre-cutting assembly, and continue to drive the pre-cutting assembly and the extrusion screw 3 to rotate forward to process the material.

[0078] It can be understood that during the forward rotation juicing process of the whole fruit material, the pointed end 21 pierces the material. When it is detected that the load of the motor 4 decreases from meeting the working load to not meeting the working load (changing from large to small), after reversing for the first preset duration, it resumes forward rotation. When it is detected that the load of the motor 4 resumes from not meeting the working load to meeting the working load again (changing from small to large), after forward rotation for a period of time to process the material, whole fruit material is put into the hopper 1 again, and this whole fruit also experiences material piercing. When it is detected that the load of the motor 4 decreases from meeting the working load to not meeting the working load (changing from large to small), after reversing twice, it resumes forward rotation twice. When it is detected that the load of the motor 4 resumes from not meeting the working load to meeting the working load again (changing from small to large). That is to say, starting from the moment the whole fruit material is put into the bin, after experiencing material piercing and the material separating from the pointed end 21, another whole fruit material is put in and experiences material piercing, and after material piercing, the material separates again for the second time. The juicer obtains the correct feedback signal, enabling effective identification of multiple materials being pierced by the pointed end 21 at different stages. Even if the juicer pierces the material multiple times, it can be identified, further ensuring the normal completion of the juicing work and greatly enhancing the juicing experience throughout the process.

[0079] In another embodiment, when multiple whole fruits are put in simultaneously and some of the materials have entered the extrusion screw 3 and are being extruded, material piercing occurs to a certain whole fruit in the middle.

[0080] Step 1: When entering the extrusion stage of driving the extrusion screw 3 to rotate forward to extrude the material, the extrusion screw 3 continuously rotates forward until the extrusion stage is completed. When it is detected that the load of the motor 4 decreases from meeting the working load to not meeting the working load, control the motor 4 to drive the pre-cutting assembly and the extrusion screw 3 to rotate backward for the first preset duration, and then resume forward rotation;

[0081] Step 2: When the pre-cutting assembly and the extrusion screw 3 resume forward rotation and it is detected that the load of the motor 4 resumes meeting the working load, when it is determined that the load of the motor 4 decreases from meeting the working load to not meeting the working load, the pointed end 21 pierces the material and the material has separated during the reverse rotation of the pre-cutting assembly, and continue to drive the pre-cutting assembly and the extrusion screw 3 to rotate forward to process the material.

[0082] It can be understood that when multiple whole fruits are put in, and when jamming occurs to the material of one whole fruit (jamming occurs to a certain whole fruit in the middle), no jamming occurs to other whole fruits, and when some materials have entered the extrusion screw 3 and are being extruded, since there are still materials that can be extruded or cut, the detected load of the motor 4 always meets the working load value. It is necessary to wait until other whole fruits are squeezed out before it can be recognized that jamming has occurred to a certain fruit in the middle. The detected load of the motor 4 changes from meeting the working load to not meeting the working load (changing from large to small), and after reversing for the first preset duration, it resumes forward rotation. The detected load of the motor 4 changes from not meeting the working load to meeting the working load again (changing from small to large). That is to say, it is possible that multiple whole fruit materials start to enter the stage where some materials have been extruded from the feeding bin. At this moment, jamming occurs to a certain fruit in the middle, and after jamming, the materials are separated by reversing, so that in the entire juice extraction process, the unjammed whole fruits can be juiced normally in the first half of the time, ensuring the smoothness of the juice extraction process in the first half. At the same time, the jamming state of a certain remaining fruit in the middle can be effectively recognized, ensuring that all materials can be squeezed out, thus ensuring the normal completion of the juice extraction work and the smoothness of the juice extraction process.

[0083] In addition, the intelligent control juicer further includes a voltage detection module and a current detection module for detecting the load of the motor 4. The power value is obtained by combining the voltage detection module and the current detection, and the load value of the motor 4 is detected according to the power value.

[0084] It can be understood that obtaining the load value of the motor 4 through a single current detection module or voltage detection module will greatly reduce the accuracy of the load value of the motor 4 due to factors such as unstable voltage or current in the power grid. However, by first obtaining the power value from the signals measured by the current detection module and the voltage detection module, and the power is always constant, the accuracy of the load value of the motor 4 is greatly improved, thus ensuring the accuracy of the juice extraction signal and being more conducive to distinguishing whether the juicer is in an unloaded state after normal juice extraction or an idling state where materials are jammed into the tip of the cutting edge 2.

[0085] In some embodiments, when the pre-cutting assembly and the extrusion screw 3 resume forward rotation, and it is detected that the motor 4 maintains an unloaded state where the working load is not met, it is determined that the material has been extruded, and the rotation speed of the motor 4 is reduced and it continues to rotate forward for the fourth preset duration and then stops working.

[0086] It can be understood that when it is recognized that the juicer does not meet the working load because it has already been in a state where the material has been extruded, the rotation speed of the juicer is adjusted to reduce energy consumption, and after the fourth preset duration (for example, 20 minutes, etc.), the juicer stops working.

[0087] Except for the above preferred embodiments, the technical solutions protected by the present invention are not limited to the above embodiments. It should be noted that the combination of multiple technical solutions in any one embodiment, as well as the combination of the technical solutions in any one embodiment with the technical solutions in one or more other embodiments, are within the protection scope of the present invention. Although the present invention has been described in detail above with general descriptions and specific embodiments, based on the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

Claims

1. An intelligent control juicer, characterized in that, include: A hopper, the hopper is used to hold whole fruit materials and is provided with a pre-cutting assembly, the pre-cutting assembly includes a cutting edge with a tip portion extending upwardly in a spiral, and the pre-cutting assembly rotates forward to meet the material and cut the material with the tip portion; An extrusion assembly, which is arranged below the hopper and includes an extrusion screw drivingly connected to the pre-cutting assembly; a motor, driving the pre-cutting assembly and the extrusion screw to rotate forwardly, and when detecting that the motor is reduced from satisfying the workload to not satisfying the workload, controlling the motor to drive the pre-cutting assembly and the extrusion screw to rotate in the opposite direction for a first preset time, and then resuming forward rotation; The pre-cutting assembly and the extrusion screw resume forward rotation, and it is detected that the motor does not maintain the working load, and it is determined that the material has been extruded and stops working; The pre-cutting assembly and the extrusion screw resume forward rotation, and when it is detected that the motor resumes to meet the workload and it is determined that the motor has decreased from meeting the workload to not meeting the workload, the tip pierces the material and the material has been detached during the reversal process of the pre-cutting assembly, and continues to drive the pre-cutting assembly and the extrusion screw to rotate forward to process the material.

2. The intelligent control juicer according to claim 1, wherein, The tip portion is provided with a material-carrying surface convexly extending radially outward, and the inner wall of the hopper is provided with blocking ribs. The motor drives the pre-cutting assembly to rotate in the opposite direction for the first preset time length, and the radial distance between the pre-cutting assembly and the blocking rib gradually decreases during the process of rotating from the back material surface to the outer end of the tip portion, so as to separate the material that has penetrated into the tip portion.

3. The intelligent control juicer according to claim 1, characterized in that After the pre-cutting assembly and the extrusion screw resume forward rotation for a second preset time, it is detected that the motor resumes to meet the extrusion load, When it is determined that the motor is reduced from satisfying the workload to not satisfying the workload, the tip portion pierces the material and the material has been separated during the reversal process of the pre-cutting component, and continues to drive the extrusion screw to rotate forward to extrude the material.

4. The intelligent control juicer according to claim 1, wherein The pre-cutting assembly and the extrusion screw resume forward rotation for a third preset time, and it is detected that the motor resumes to meet the cutting load. When it is determined that the motor is reduced from satisfying the workload to not satisfying the workload, the tip portion pierces the material and the material has been separated during the reversal process of the pre-cutting component, and continues to drive the extrusion screw to rotate forward to extrude the material.

5. The intelligent control juicer according to claim 1, characterized in that, The pre-cutting assembly and the extrusion screw are driven to rotate forwardly, and when it is detected that the motor decreases from satisfying the workload to not satisfying the workload, the motor is immediately controlled to drive the pre-cutting assembly and the extrusion screw to rotate reversely for the first preset time period.

6. The intelligently controlled juicer according to claim 1, characterized in that: After continuing to drive the pre-cutting assembly and the extrusion screw to rotate forward to process the material, the intelligently controlled juicer further includes: Detecting that the motor is reduced from satisfying the workload to not satisfying the workload again, controlling the motor to drive the pre-cutting assembly and the extrusion screw to rotate in the opposite direction for a first preset time, and then resuming forward rotation; It is detected that the motor does not maintain the required workload, and it is determined that the material has been processed and the motor stops working.

7. The intelligent control juicer according to claim 1, wherein After continuing to drive the pre-cutting assembly and the extrusion screw to rotate forward to process the material, the intelligently controlled juicer further includes: Detect that the motor no longer meets the working load again. After controlling the motor to drive the pre-cutting assembly and the extrusion screw to rotate reversely for a first preset duration, then resume forward rotation; When it is detected that the motor resumes meeting the working load again, and it is determined that the motor no longer meets the working load again after decreasing from meeting the working load, the pointed end portion pierces the material again and the material has separated during the reverse rotation of the pre-cutting assembly, and continue to drive the pre-cutting assembly and the extrusion screw to rotate forward to process the material.

8. The intelligent control juicer according to claim 1, wherein When entering the extrusion stage of driving the extrusion screw to rotate forward to extrude the material, the extrusion screw continues to rotate forward until the extrusion stage is completed. Detect that the motor decreases from meeting the working load to not meeting the working load, and control the motor to drive the pre-cutting assembly and the extrusion screw to rotate reversely for a first preset duration.

9. The intelligent control juicer according to claim 1, wherein, The intelligent control juicer further includes a voltage detection module and a current detection module for detecting the load of the motor. The power value is obtained by combining the voltage detection module and the current detection, and the load value of the motor is detected according to the power value.

10. The intelligent control juicer according to claim 1, wherein The pre-cutting assembly and the extrusion screw resume forward rotation. When it is detected that the motor maintains an unloaded state where it does not meet the working load, it is determined that the material has been extruded, and the motor speed is reduced and continues to rotate forward for a fourth preset duration and then stops working.

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