Intelligent rice mill based on multi-parameter dynamic regulation and control and grain processing method

Abstract

The invention relates to the technical field of grain processing, in particular to an intelligent rice mill based on multi-parameter dynamic regulation and control and a grain processing method. Comprising a whole machine shell and a machine body base, the machine body base is provided with a rice feeding and conveying mechanism and a rice fine processing mechanism, the rice feeding and conveying mechanism and the rice fine processing mechanism are both located in the whole machine shell, and rice is conveyed into the rice fine processing mechanism through the rice feeding and conveying mechanism. The invention provides an intelligent rice husking machine based on multi-parameter dynamic regulation and control and a grain processing method, aims to realize on-demand small-batch high-precision fresh grain processing by sensing grain characteristics in real time and cooperatively adjusting milling parameters, and solves the problems that existing equipment is rigid in parameter, cannot adapt to differences, is high in storage risk and is insufficient in customization.

Description

Technical Field

[0001] This invention relates to the field of grain processing technology, and in particular to an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control. Background Technology

[0002] Currently, rice milling equipment is mainly divided into two categories: traditional mechanical rice milling machines and semi-automatic intelligent rice milling machines. Traditional mechanical rice milling machines process rice in batches by fixing the roller speed and screen aperture, requiring manual replacement of parts to adjust accuracy. Semi-automatic intelligent rice milling machines, while possessing basic weighing and preset control functions, still rely on pre-stored grain raw materials and cannot respond in real time to the differences in characteristics of different grains. Both types of equipment aim to improve rice milling efficiency and quality, but limited by static parameter control modes, they struggle to meet users' complex needs for freshness, nutrient retention, and personalized processing.

[0003] Existing rice milling equipment suffers from the following technical defects: fixed roller speed, milling pressure, and screen aperture make it impossible to adapt to different grain characteristics (such as moisture, hardness, and variety differences), easily resulting in excessively high broken rice rate (>8%) or insufficient germ retention rate, leading to significant fluctuations in processing quality; lack of real-time monitoring and feedback mechanisms for grain status, while semi-automatic equipment provides preset programs, it does not integrate the ability to sense key parameters such as moisture and temperature, making it difficult to suppress energy waste during processing; unable to support small-batch, on-demand milling, users cannot flexibly control the single processing volume (e.g., 5-50 catties range), nor can they accurately adjust the milling precision through personalized settings (e.g., germ rice / polished white rice mode); pre-stored paddy rice intelligent rice milling machines lack raw material preservation mechanisms, easily leading to problems such as mold and insect infestation, and unable to achieve a "mill as needed" fresh rice supply model. Summary of the Invention

[0004] This invention provides an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control. It aims to achieve on-demand, small-batch, high-precision fresh grain processing by sensing grain characteristics in real time and coordinating the adjustment of milling parameters, thereby solving the problems of rigid parameters, inability to adapt to differences, high storage risks, and insufficient customization of existing equipment.

[0005] The technical solution adopted in this invention is as follows: an intelligent rice milling machine based on multi-parameter dynamic control, comprising a machine shell and a machine base. The machine base is equipped with a rice feeding and conveying mechanism and a rice refining and processing mechanism, both of which are located inside the machine shell. Rice is conveyed to the rice refining and processing mechanism through the rice feeding and conveying mechanism.

[0006] The rice feeding and conveying mechanism includes a hopper running motor fixedly installed on the machine base. The output end of the hopper running motor is fixedly connected to a first transmission wheel. A top cover plate is fixedly installed inside the top of the machine casing. A second transmission wheel is rotatably connected to the bottom of the top cover plate. The first transmission wheel and the second transmission wheel are connected by a running synchronous belt. Two vertical and parallel guide columns are provided on the machine base on one side of the hopper running motor. The bottom end of the guide column is fixedly connected to the machine base and the top end of the guide column is fixedly connected to the top cover plate. A lifting frame is slidably connected to the two guide columns, and one end of the lifting frame is fixedly connected to the running synchronous belt. A feeding hopper electric push rod and a feeding hopper are hingedly installed on the lifting frame, and the movable shaft of the feeding hopper electric push rod is hinged to the feeding hopper.

[0007] The rice fine processing mechanism includes a rice bran collection chamber and an equipment support fixedly mounted on a machine base. A rice processing motor is fixedly mounted in the middle of the equipment support, and a rice bran separation chamber is fixedly mounted at the top of the equipment support. A processing inlet is fixedly mounted on one side of the rice bran separation chamber, and a processing hopper is fixedly mounted on top of the processing inlet. A finished product outlet is fixedly mounted on the side of the rice bran separation chamber away from the processing inlet. A right-angled tube chamber is fixedly connected to the bottom of the rice bran separation chamber and is connected to the finished product outlet. A suction end of a dust collector is connected to one side of the right-angled tube chamber. The input shaft of the dust collector extends to its outer side and is fixedly connected to a third transmission wheel. A rice milling main shaft is rotatably connected to the separation chamber and the processing inlet. A rice milling processor located inside the rice bran separation chamber is fixedly sleeved on the rice milling main shaft. One end of the rice milling main shaft extends to the outside of the processing inlet and is fixedly connected to a pulley. The output end of the rice processing motor is provided with a fourth transmission wheel. The fourth transmission wheel is connected to the pulley via a first belt. The pulley is connected to the third transmission wheel via a second belt. A rice bran conveying box is fixedly installed on the top of the rice bran collection chamber. The bottom of the rice bran conveying box extends into and communicates with the rice bran collection chamber. The exhaust end of the dust extraction fan is connected to the rice bran conveying box via a connecting pipe.

[0008] As a further improvement of the present invention, a support frame is fixedly installed inside the outer shell of the whole machine on the outside of the rice feeding and conveying mechanism. A speed regulator for the hopper running motor is fixedly installed on the front side of the support frame and is electrically connected to the hopper running motor. A speed regulator for the rice processing motor is fixedly installed on the front side of the support frame and is electrically connected to the rice processing motor.

[0009] As a further improvement of the present invention, the front middle of the machine housing is provided with an inclined feeding trough and the feeding trough is fixedly installed on the front side of the support frame. A hopper protective net is fixedly installed on the top of the feeding hopper, a feeding weighing sensor is installed at the bottom of the feeding hopper, and a position sensor is fixedly installed on one side of the lifting frame.

[0010] As a further improvement of the present invention, a finished product collection chamber is provided at the lower front end of the machine casing, and a finished product weighing tray is provided at the bottom of the finished product collection chamber, and a meter weighing sensor is installed at the bottom of the finished product weighing tray.

[0011] As a further improvement of the present invention, a horizontal plate is fixedly installed on the top of the rice bran separation chamber and a control plate push rod is installed on the top of the horizontal plate. The movable end of the control plate push rod is fixedly connected to the rice feed control plate, and the rice feed control plate is located at the connection between the processing feed hopper and the processing feed inlet.

[0012] As a further improvement of the present invention, a gear adjustment motor is fixedly installed on the top of the equipment support on the side of the finished product outlet. A rotating shaft is rotatably connected to the finished product outlet. A precision adjustment plate and an adjustment spring baffle are sleeved on the rotating shaft and located inside the finished product outlet. The precision adjustment plate and the adjustment spring baffle are connected by a precision adjustment spring sleeved on the outside of the rotating shaft. The rotating shaft extends to the front side of the finished product outlet and is fixedly connected to a fifth transmission wheel. A sixth transmission wheel is provided at the output end of the gear adjustment motor. The fifth transmission wheel and the sixth transmission wheel are connected by a third belt.

[0013] As a further improvement of the present invention, a secondary dust collection net is installed on the front side of the finished product outlet, in front of the connection between the right-angle tube chamber and the finished product outlet.

[0014] A grain processing method using an intelligent rice milling machine based on multi-parameter dynamic control includes the following steps:

[0015] Step 1, Grain Characteristic Detection and Parameter Initialization: The user selects the grain variety (japonica rice / indica rice) through a mobile app or device button, and the control module calls the initial processing parameters (roller speed, milling pressure, dust suction intensity) based on the preset database;

[0016] Step 2, Dynamic feeding and real-time control: Initially, the feeding hopper is located below the feeding trough. After the user puts in the grain, the grain enters the feeding hopper, and the weight of the grain is measured in real time by the feeding weighing sensor; the hopper running motor drives the lifting frame to raise the feeding hopper to the processing feeding hopper position; the feeding hopper electric push rod tilts the feeding hopper to pour in the grain, and at the same time the control plate push rod adjusts the opening of the rice feeding control plate so that the feeding rate matches the load of the rice processing motor;

[0017] Step 3, Multi-parameter Coordinated Grinding: The rice milling spindle drives the rice milling machine to operate, the gear adjustment motor dynamically adjusts the roller gap through the precision adjustment plate, and the precision adjustment spring buffers pressure fluctuations; the dust extraction fan adjusts the suction power synchronously according to the speed of the rice milling spindle, and the rice bran is sucked into the rice bran conveying box through the right-angle tube chamber; the rice milling data is monitored in real time, and the motor power is dynamically adjusted through the rice processing motor speed controller;

[0018] Step 4, Finished Product Quality Feedback Control: The polished rice flowing out of the finished product outlet is collected by the finished product weighing tray, and the rice weighing sensor continuously detects the weight change; when the weight data is stable for ≥5 seconds, it is determined that the rice milling is completed and the rice processing motor is turned off; if the detected broken rice rate is >3% (preset threshold), the precision adjustment spring preload is automatically increased to reduce the milling pressure.

[0019] Step 5, User-customized output: Based on the rice milling precision mode (germ rice / polished white rice) selected in the mobile app, the roller gap is finely adjusted to the target level by adjusting the precision adjustment plate driven by the gear adjustment motor.

[0020] The beneficial effects of the present invention: The present invention solves the core defects of existing rice milling equipment, such as fixed parameters, poor adaptability, high energy consumption and weak customization ability, by constructing an integrated dynamic control system of "perception-decision-execution". Specifically, it is reflected in: (1) intelligent initialization of parameters based on the characteristics of grain varieties, combined with real-time broken rice rate feedback and pressure self-adjustment mechanism during the milling process, significantly reducing the broken rice rate and achieving precise control of germ retention rate, ensuring that different grains can obtain stable and high-quality processing results, and completely overcoming the problem of large fluctuations in processing quality of traditional equipment; (2) the feeding weighing sensor and the rice feeding control board work together to realize the load. Matching, combined with dynamic adjustment of rice milling motor power and linkage control of dust extraction fan-rice milling main shaft, effectively suppresses idle energy consumption and ineffective power consumption, and greatly improves energy utilization rate; (3) Supports small batch on-demand processing, realizes one-click customization of parameters such as rice milling precision and processing volume through mobile phone applet, meets the personalized needs of family, community and other scenarios, and eliminates the risk of mold caused by pre-stored rice, truly realizing the "use and grind" fresh rice supply mode; (4) Closed-loop control of the whole process from grain input to finished product output, combined with multi-level dust extraction and efficient rice bran recycling design, simplifies manual operation while ensuring long-term stable operation of equipment. Attached Figure Description

[0021] Figure 1 This is a perspective view of an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control according to the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control according to the present invention.

[0023] Figure 3This is a schematic diagram of the internal structure of the outer shell of an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control according to the present invention. Figure 1 ;

[0024] Figure 4 This is a schematic diagram of the internal structure of the outer shell of an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control according to the present invention. Figure 2 ;

[0025] Figure 5 This is a partial structural diagram of an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control according to the present invention. Figure 1 ;

[0026] Figure 6 This is a partial structural diagram of an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control according to the present invention. Figure 2 ;

[0027] Figure 7 This invention relates to an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control. Figure 6 Another perspective illustration;

[0028] Figure 8 This is a partial structural diagram of an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control according to the present invention. Figure 3 ;

[0029] Figure 9 This invention relates to an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control. Figure 8 Another perspective illustration;

[0030] Figure 10 This is a partial structural diagram of an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control according to the present invention. Figure 4 ;

[0031] Figure 11 This is a partial structural diagram of an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control according to the present invention. Figure 5 ;

[0032] Figure 12 This is a partial structural cross-sectional view of an intelligent rice milling machine and grain processing method based on multi-parameter dynamic control according to the present invention.

[0033] As shown in the figure: 1. Machine casing; 2. Machine base; 3. Feed hopper; 4. Hopper protective net; 5. Processing feed hopper; 6. Rice bran collection chamber; 7. Position sensor; 8. Support frame; 9. Secondary dust collection net; 10. Feed weighing sensor; 11. Feed hopper electric push rod; 12. Finished rice weighing sensor; 13. Rice feed control board; 14. Control board push rod; 15. Rice processing motor; 16. Gear adjustment motor; 17. Feed trough; 18. Finished product outlet; 19. Finished product collection chamber; 20. Finished product weighing tray; 21. Rice processing motor speed controller; 22. Running synchronous belt; 23. Hopper running motor; 24. Hopper running motor speed controller; 5. Rice milling main shaft; 26. Dust extraction fan; 27. Processing feed inlet; 28. Pulley; 29. ​​Rice bran separation chamber; 30. Rice milling machine; 31. Precision adjustment plate; 32. Precision adjustment spring; 33. Adjustment spring baffle; 34. First drive wheel; 35. Second drive wheel; 36. Guide column; 37. Lifting frame; 38. Top cover plate; 39. Equipment support; 40. Third drive wheel; 41. Fourth drive wheel; 42. First belt; 43. Second belt; 44. Connecting pipe; 45. Right-angle tube chamber; 46. Rice bran conveying box; 47. Horizontal plate; 48. Rotating shaft; 49. Fifth drive wheel; 50. Sixth drive wheel; 51. Third belt. Detailed Implementation

[0034] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0035] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0036] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] This invention provides the following: Figure 1-12The intelligent rice milling machine shown includes a machine shell 1 and a machine base 2. The machine base 2 is equipped with a rice feeding and conveying mechanism and a rice fine processing mechanism, both of which are located inside the machine shell 1. The rice is conveyed to the rice fine processing mechanism through the rice feeding and conveying mechanism.

[0038] The rice feeding and conveying mechanism includes a hopper running motor 23 fixedly installed on the machine base 2. The output end of the hopper running motor 23 is fixedly connected to a first transmission wheel 34. A top cover plate 38 is fixedly installed on the top of the machine casing 1. A second transmission wheel 35 is rotatably connected to the bottom of the top cover plate 38. The first transmission wheel 34 and the second transmission wheel 35 are connected by a running synchronous belt 22. Two vertical and parallel guide columns 36 are provided on the machine base 2 on one side of the hopper running motor 23. The bottom end of the guide column 36 is fixedly connected to the machine base 2 and the top end of the guide column 36 is fixedly connected to the top cover plate 38. A lifting frame 37 is slidably connected to the two guide columns 36 and one end of the lifting frame 37 is fixedly connected to the running synchronous belt 22. A feeding hopper electric push rod 11 and a feeding hopper 3 are hingedly installed on the lifting frame 37 and the movable shaft of the feeding hopper electric push rod 11 is hinged to the feeding hopper 3.

[0039] The rice fine processing mechanism includes a rice bran collection chamber 6 and an equipment support 39 fixedly installed on the machine base 2. A rice processing motor 15 is fixedly installed in the middle of the equipment support 39, and a rice bran separation chamber 29 is fixedly installed at the top of the equipment support 39. A processing inlet 27 is fixedly installed on one side of the rice bran separation chamber 29, and a processing hopper 5 is fixedly installed on the top of the processing inlet 27. A finished product outlet 18 is fixedly installed on the side of the rice bran separation chamber 29 away from the processing inlet 27. A right-angle tube chamber 45 is fixedly connected to the bottom of the rice bran separation chamber 29 and is connected to the finished product outlet 18. The suction end of a dust collector 26 is connected to one side of the right-angle tube chamber 45. The input shaft of the dust collector 26 extends to its outer side and is fixedly connected to a third transmission wheel 40. A rice milling main shaft 25 is rotatably connected to the processing feed inlet 27. A rice milling processor 30 located inside the rice bran separation chamber 29 is fixedly sleeved on the rice milling main shaft 25. One end of the rice milling main shaft 25 extends to the outside of the processing feed inlet 27 and is fixedly connected to a pulley 28. The output end of the rice processing motor 15 is provided with a fourth transmission wheel 41. The fourth transmission wheel 41 is connected to the pulley 28 by a first belt 42. The pulley 28 is connected to the third transmission wheel 40 by a second belt 43. A rice bran conveying box 46 is fixedly installed on the top of the rice bran collection chamber 6. The bottom of the rice bran conveying box 46 extends into the rice bran collection chamber 6 and is connected to it. The discharge end of the dust extraction fan 26 is connected to the rice bran conveying box 46 through a connecting pipe 44.

[0040] like Figure 1-12As shown, in this invention, a support frame 8 is fixedly installed inside the outer casing 1 of the whole machine, located outside the rice feeding and conveying mechanism. A hopper running motor speed controller 24 is fixedly installed on the front side of the support frame 8 and is electrically connected to the hopper running motor 23. A rice processing motor speed controller 21 is fixedly installed on the front side of the support frame 8 and is electrically connected to the rice processing motor 15.

[0041] like Figure 1-12 As shown, in this invention, the front middle of the machine housing 1 is provided with an inclined feeding trough 17 and the feeding trough 17 is fixedly installed on the front side of the support frame 8. The top of the feeding hopper 3 is fixedly installed with a hopper protective net 4, the bottom of the feeding hopper 3 is installed with a feeding weighing sensor 10, and the lifting frame 37 is fixedly installed on one side with a position sensor 7.

[0042] like Figure 1-12 As shown, in this invention, the lower front part of the outer casing 1 of the whole machine is provided with a finished product collection chamber 19, and the bottom of the finished product collection chamber 19 is provided with a finished product weighing tray 20, and a meter weighing sensor 12 is installed at the bottom of the finished product weighing tray 20.

[0043] like Figure 1-12 As shown, in this invention, a horizontal plate 47 is fixedly installed on the top of the rice bran separation chamber 29, and a control plate push rod 14 is installed on the top of the horizontal plate 47. The movable end of the control plate push rod 14 is fixedly connected to the rice feed control plate 13, and the rice feed control plate 13 is located at the connection between the processing feed hopper 5 and the processing feed inlet 27.

[0044] like Figure 1-12 As shown, in this invention, a gear adjustment motor 16 is fixedly installed on the top of the equipment bracket 39 on one side of the finished product outlet 18. A rotating shaft 48 is rotatably connected to the finished product outlet 18. A precision adjustment plate 31 and an adjustment spring baffle 33 are sleeved on the rotating shaft 48 and located inside the finished product outlet 18. The precision adjustment plate 31 and the adjustment spring baffle 33 are connected by a precision adjustment spring 32 sleeved on the outside of the rotating shaft 48. The rotating shaft 48 extends to the front side of the finished product outlet 18 and is fixedly connected to a fifth transmission wheel 49. A sixth transmission wheel 50 is provided at the output end of the gear adjustment motor 16. The fifth transmission wheel 49 and the sixth transmission wheel 50 are connected by a third belt 51.

[0045] like Figure 1-12 As shown, in this invention, a secondary dust collection net 9 is installed in front of the connection between the right-angle tube chamber 45 and the finished product outlet 18 on the front side of the finished product outlet.

[0046] A grain processing method using an intelligent rice milling machine based on multi-parameter dynamic control includes the following steps:

[0047] Step 1, Grain Characteristic Detection and Parameter Initialization: The user selects the grain variety (japonica rice / indica rice) through a mobile app or device button, and the control module calls the initial processing parameters (roller speed, milling pressure, dust suction intensity) based on the preset database;

[0048] Step 2, Dynamic feeding and real-time control: Initially, the feeding hopper 3 is located below the feeding trough 17. After the user puts in the grain, the grain enters the feeding hopper 3, and the weight of the grain is measured in real time by the feeding weighing sensor 10. The hopper running motor 23 drives the lifting frame 37 to lift the feeding hopper 3 to the position of the processing feeding hopper 5. The feeding hopper electric push rod 11 tilts the feeding hopper 3 to pour in the grain, and at the same time, the control board push rod 14 adjusts the opening of the rice feeding control board 13 so that the feeding rate matches the load of the rice processing motor 15.

[0049] Step 3, Multi-parameter Coordinated Milling: The rice milling spindle 25 drives the rice milling processor 30 to operate. The gear adjustment motor 16 dynamically adjusts the roller gap through the precision adjustment plate 31, and the precision adjustment spring 32 buffers pressure fluctuations. The dust extraction fan 26 adjusts the suction power synchronously according to the rotation speed of the rice milling spindle 25. Rice bran is sucked into the rice bran conveying box 46 through the right-angle tube chamber 45. The rice milling data is monitored in real time, and the motor power is dynamically adjusted through the rice processing motor speed controller 21.

[0050] Step 4, Finished Product Quality Feedback Control: The polished rice flowing out of the finished product outlet 18 is collected by the finished product weighing tray 20, and the rice weighing sensor 12 continuously detects the weight change; when the weight data is stable for ≥5 seconds, it is determined that the rice milling is completed and the rice processing motor 15 is turned off; if the detected broken rice rate is >3% (preset threshold), the preload of the precision adjustment spring 32 is automatically increased to reduce the milling pressure.

[0051] Step 5, User-customized output: Based on the rice milling precision mode (germ rice / refined white rice) selected in the mobile app, the roller gap is finely adjusted to the target level by using the gear adjustment motor 16 to drive the precision adjustment plate 31.

[0052] Working Principle: In practical implementation, after the user completes the grain variety selection and parameter settings, the feeding hopper 3 is initially positioned below the feeding trough 17. The user feeds the grain to be processed into the feeding hopper 3 through the feeding trough 17. At this time, the feeding weighing sensor 10 immediately detects the weight of the grain and transmits the data to the control module in real time. The control module, combined with the preset feeding amount parameters per unit time, automatically calculates the initial opening required by the feeding amount control board 13. Subsequently, the hopper running motor 23 starts under the control of the hopper running motor speed regulator 24. Through the transmission action of the first transmission wheel 34, the running synchronous belt 22, and the second transmission wheel 35, it drives the lifting running frame 37 to slide upward along the guide column 36. The position sensor 7 monitors the position of the lifting running frame 37 in real time. When it runs directly above the processing feeding hopper 5, the hopper running motor 23 stops running. Next, the movable shaft of the electric push rod 11 of the feeding hopper extends, pushing the feeding hopper 3 to rotate and tilt around its hinge point with the lifting frame 37, so that the grains can be smoothly poured into the processing feeding hopper 5. During this process, the control board push rod 14 dynamically adjusts the opening of the rice feeding control board 13 according to the real-time weight change fed by the feeding weighing sensor 10, ensuring that the flow rate of grains entering the processing feeding port 27 is stable, and avoiding overloading of the rice processing motor 15 due to excessive feeding or increased no-load energy consumption due to insufficient feeding.

[0053] During the milling process, the rice processing motor 15 starts operating under the drive of the rice processing motor speed controller 21. Its output fourth transmission wheel 41 drives the pulley 28 on the rice milling main shaft 25 to rotate via the first belt 42, thereby causing the rice milling main shaft 25 to drive the rice milling processor 30 to rotate at high speed within the rice bran separation chamber 29. Simultaneously, the pulley 28 drives the third transmission wheel 40 to rotate via the second belt 43, causing the dust extraction fan 26 to start synchronously. Its suction power is automatically adjusted according to the real-time speed of the rice milling main shaft 25; the higher the speed, the greater the suction power, efficiently removing the rice bran generated during milling. The gear adjustment motor 16, according to the control module's instructions, drives the rotating shaft 48 to rotate via the sixth transmission wheel 50, the third belt 51, and the fifth transmission wheel 49, thereby causing the precision adjustment plate 31 to rotate within the finished product outlet 18, changing the roller gap. The precision adjustment spring 32 acts as a buffer during the adjustment process, preventing sudden pressure changes from damaging the equipment. When the grains enter the rice bran separation chamber 29, they are ground by the rice milling processor 30. The rice bran is sucked in through the right-angle tube chamber 45 by the suction of the dust extraction fan 26, and then transported to the rice bran conveying box 46 through the connecting pipe 44, and finally falls into the rice bran collection chamber 6. The ground rice enters the finished product outlet 18 through the connection between the right-angle tube chamber 45 and the finished product outlet 18.

[0054] The polished rice flowing out of the finished product outlet 18 falls into the finished product weighing tray 20 below. The rice weighing sensor 12 continuously monitors the weight of the tray. When the weight data remains stable for 5 seconds, the control module determines that the rice milling process is complete and immediately sends a command to shut down the rice processing motor 15, the dust extraction fan 26, and other related equipment. If, during processing, the preset detection device detects that the broken rice rate exceeds the 3% threshold, the control module will immediately control the gear adjustment motor 16 to rotate in the opposite direction, reducing the tilt angle of the precision adjustment plate 31, thereby increasing the preload of the precision adjustment spring 32 and reducing the milling pressure to reduce the generation of broken rice. In addition, the germ rice or polished white rice mode selected by the user through the mobile app will have the position of the precision adjustment plate 31 precisely adjusted by controlling the gear adjustment motor 16 in step three, so that the roller gap reaches the target value of the corresponding mode, ensuring that the precision of the finished rice meets the user's needs. Throughout the entire process, the secondary dust extraction net 9 can perform secondary adsorption on any small amount of rice bran that may remain at the finished product outlet 18, further improving the cleanliness of the finished rice.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smart rice milling machine based on multi-parameter dynamic control, comprising a machine casing (1) and a machine base (2), characterized in that, The machine base (2) is equipped with a rice feeding and conveying mechanism and a rice refining and processing mechanism, both of which are located inside the outer shell (1) of the machine. The rice is conveyed to the rice refining and processing mechanism through the rice feeding and conveying mechanism. The rice feeding and conveying mechanism includes a hopper running motor (23) fixedly installed on the machine base (2). The output end of the hopper running motor (23) is fixedly connected to a first transmission wheel (34). A top cover plate (38) is fixedly installed on the top of the machine casing (1). A second transmission wheel (35) is rotatably connected to the bottom of the top cover plate (38). The first transmission wheel (34) and the second transmission wheel (35) are connected by a running synchronous belt (22). The hopper running motor (23) is located on the machine base (2). Two vertical and parallel guide columns (36) are provided. The bottom end of the guide column (36) is fixedly connected to the machine base (2) and the top end of the guide column (36) is fixedly connected to the top cover plate (38). A lifting frame (37) is slidably connected to the two guide columns (36) and one end of the lifting frame (37) is fixedly connected to the running synchronous belt (22). The lifting frame (37) is hingedly mounted with a hopper electric push rod (11) and a hopper (3) and the movable shaft of the hopper electric push rod (11) is hinged to the hopper (3). The rice fine processing mechanism includes a rice bran collection chamber (6) and an equipment support (39) fixedly installed on the machine base (2). A rice processing motor (15) is fixedly installed in the middle of the equipment support (39). A rice bran separation chamber (29) is fixedly installed at the top of the equipment support (39). A processing inlet (27) is fixedly installed on one side of the rice bran separation chamber (29), and a processing hopper (5) is fixedly installed on the top of the processing inlet (27). A finished product outlet (18) is fixedly installed on the side of the rice bran separation chamber (29) away from the processing inlet (27). A right-angle tube chamber (45) is fixedly connected to the bottom of the rice bran separation chamber (29), and the right-angle tube chamber (45) is connected to the finished product outlet (18). The suction end of a dust collector (26) is connected to one side of the right-angle tube chamber (45). The input shaft of the dust collector (26) extends to its outer side and is fixedly connected to a third transmission wheel (40). 9) A rice milling main shaft (25) is rotatably connected to the processing feed inlet (27). A rice milling processor (30) located inside the rice bran separation chamber (29) is fixedly sleeved on the rice milling main shaft (25). One end of the rice milling main shaft (25) extends to the outside of the processing feed inlet (27) and is fixedly connected to a pulley (28). The output end of the rice processing motor (15) is provided with a fourth transmission wheel (41). The fourth transmission wheel (41) is connected to the pulley (28) through a first belt (42). The pulley (28) is connected to the third transmission wheel (40) through a second belt (43). A rice bran conveying box (46) is fixedly installed on the top of the rice bran collection chamber (6). The bottom of the rice bran conveying box (46) extends into the rice bran collection chamber (6) and is connected to it. The discharge end of the dust extraction fan (26) is connected to the rice bran conveying box (46) through a connecting pipe (44).

2. The intelligent rice milling machine based on multi-parameter dynamic control according to claim 1, characterized in that, Inside the outer casing (1) of the machine, a support frame (8) is fixedly installed outside the rice feeding conveyor mechanism. A hopper running motor speed controller (24) is fixedly installed on the front side of the support frame (8) and is electrically connected to the hopper running motor (23). A rice processing motor speed controller (21) is fixedly installed on the front side of the support frame (8) and is electrically connected to the rice processing motor (15).

3. The intelligent rice milling machine based on multi-parameter dynamic control according to claim 2, characterized in that, The front middle of the machine casing (1) is provided with an inclined feeding trough (17) and the feeding trough (17) is fixedly installed on the front side of the support frame (8). The top of the feeding hopper (3) is fixedly installed with a hopper protective net (4). The bottom of the feeding hopper (3) is installed with a feeding weighing sensor (10). The lifting frame (37) is fixedly installed with a position sensor (7) on one side.

4. The intelligent rice milling machine based on multi-parameter dynamic control according to claim 1, characterized in that, The lower front end of the machine casing (1) is provided with a finished product collection chamber (19), and the bottom of the finished product collection chamber (19) is provided with a finished product weighing tray (20), and a meter weighing sensor (12) is installed at the bottom of the finished product weighing tray (20).

5. The intelligent rice milling machine based on multi-parameter dynamic control according to claim 1, characterized in that, A horizontal plate (47) is fixedly installed on the top of the rice bran separation chamber (29), and a control plate push rod (14) is installed on the top of the horizontal plate (47). The movable end of the control plate push rod (14) is fixedly connected to the rice feed control plate (13), and the rice feed control plate (13) is located at the connection between the processing feed hopper (5) and the processing feed inlet (27).

6. The intelligent rice milling machine based on multi-parameter dynamic control according to claim 1, characterized in that, A gear adjustment motor (16) is fixedly installed on the top of the equipment bracket (39) on one side of the finished product outlet (18). A rotating shaft (48) is rotatably connected to the finished product outlet (18) on the upper part of the finished product outlet (18). A precision adjustment plate (31) and an adjustment spring baffle (33) are sleeved on the rotating shaft (48) inside the finished product outlet (18). The precision adjustment plate (31) and the adjustment spring baffle (33) are connected by a precision adjustment spring (32) sleeved on the outside of the rotating shaft (48). The rotating shaft (48) extends to the front side of the finished product outlet (18) and is fixedly connected to a fifth transmission wheel (49). A sixth transmission wheel (50) is provided at the output end of the gear adjustment motor (16). The fifth transmission wheel (49) and the sixth transmission wheel (50) are connected by a third belt (51).

7. The intelligent rice milling machine based on multi-parameter dynamic control according to claim 1, characterized in that, A secondary dust collection net (9) is installed in front of the connection between the right-angle tube chamber (45) and the finished product outlet (18) on the front side of the finished product outlet.

8. A grain processing method using an intelligent rice milling machine based on multi-parameter dynamic control, characterized in that, Includes the following steps: Step 1, Grain Characteristic Detection and Parameter Initialization: The user selects the grain variety (japonica rice / indica rice) through a mobile app or device button, and the control module calls the initial processing parameters (roller speed, milling pressure, dust suction intensity) based on the preset database; Step 2, dynamic feeding and real-time control: The feeding hopper (3) is initially located below the feeding trough (17). After the user puts in the grain, the grain enters the feeding hopper (3). The weight of the grain is measured in real time by the feeding weighing sensor (10). The hopper running motor (23) drives the lifting frame (37) to lift the feeding hopper (3) to the position of the processing feeding hopper (5). The feeding hopper electric push rod (11) tilts the feeding hopper (3) to pour in the grain. At the same time, the control board push rod (14) adjusts the opening of the rice feeding control board (13) so that the feeding rate matches the load of the rice processing motor (15). Step 3, multi-parameter coordinated milling: The rice milling spindle (25) drives the rice milling machine (30) to operate, the gear adjustment motor (16) dynamically adjusts the roller gap through the precision adjustment plate (31), and the precision adjustment spring (32) buffers the pressure fluctuation; the dust extraction fan (26) adjusts the suction power synchronously according to the speed of the rice milling spindle (25), and the rice bran is sucked into the rice bran conveying box (46) through the right-angle tube chamber (45); the rice milling data is monitored in real time, and the motor power is dynamically adjusted through the rice processing motor speed controller (21); Step 4, Finished Product Quality Feedback Control: The polished rice flowing out of the finished product outlet (18) is collected by the finished product weighing tray (20), and the rice weighing sensor (12) continuously detects the weight change; when the weight data is stable for ≥5 seconds, it is determined that the rice milling is completed and the rice processing motor (15) is turned off; if the detected broken rice rate is >3% (preset threshold), the preload of the precision adjustment spring (32) is automatically increased to reduce the milling pressure; Step 5, User-customized output: Based on the rice milling precision mode (germ rice / refined white rice) selected in the mobile app, the roller gap is finely adjusted to the target level by driving the precision adjustment plate (31) through the gear adjustment motor (16).

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