A quantitative rice milling device

Abstract

This utility model relates to the field of rice processing and discloses a quantitative rice milling device, including a milling machine body. A milling bin is fixedly installed on the top of the milling machine body. A differential speed mechanism is provided on one side of the milling bin, and two rotating shafts are provided on one side of the differential speed mechanism. The other ends of the two rotating shafts extend into the milling bin. A flow pipe is fixedly installed on the top of the milling bin, and a flow mechanism is provided inside the flow pipe. This utility model has the following advantages and effects: the magnetic field changes due to the rotation of the magnetic steel blades, outputting a pulse signal. The Hall sensor uses the Hall effect to convert the magnetic field change into an electrical signal, thereby recording the rotational speed of the turbine, which is then converted into the rice flow rate and displayed on the device's built-in display screen for easy observation of the rice flow rate. Furthermore, a speed difference can be generated between the two milling rollers, causing the rice grains to tumble and rotate between the rollers, resulting in more uniform milling precision.

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to a quantitative rice milling device. Background Technology

[0002] Rice processing is the process of turning paddy rice into finished rice through cleaning, hulling, milling, and finishing. By removing impurities, husks, and bran from the paddy rice, a rice product that meets food or industrial needs is obtained. Byproducts such as rice husks and bran may also be produced. This process must balance nutrient retention and improving edible quality, making it a crucial step in grain processing and involving key techniques such as cleaning, hulling, and milling.

[0003] In related technologies, rice needs to be finely milled during processing. Fine milling can remove the bran, germ, and impurities from the surface of the rice grains, making the rice whiter and smoother in appearance, and more delicate in taste after cooking, meeting consumers' demand for high-quality rice. However, current equipment cannot control the flow rate of rice well during fine milling, which can easily lead to too much rice entering the fine milling area at the same time, resulting in a decrease in the fine milling effect. In addition, existing equipment is prone to over-milling on a single contact surface, as well as local over-milling or under-milling.

[0004] Therefore, we propose a quantitative rice milling device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a quantitative rice milling device that has the effects of controllable rice flow and more uniform milling precision.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a quantitative rice milling device, comprising a milling machine body, a milling chamber fixedly installed on the top of the milling machine body, a differential mechanism provided on one side of the milling chamber, two rotating shafts provided on one side of the differential mechanism, and the other ends of the two rotating shafts extending into the milling chamber; a flow pipe fixedly installed on the top of the milling chamber, and a flow mechanism provided on the inner side of the flow pipe.

[0007] A further feature of this invention is that an electrically controlled valve is fixedly installed at the top of the flow pipeline.

[0008] By adopting the above technical solution, it is easy to control the flow of rice.

[0009] A further feature of this invention is that a feed hopper is fixedly installed on the top of the electrically controlled valve.

[0010] By adopting the above technical solution, it is easy to add rice.

[0011] A further feature of this invention is that the flow mechanism includes a flow shaft, a turbine, multiple magnetic blades, and a Hall sensor. The flow shaft is fixedly installed on the inner side of the flow pipe, and the turbine is rotatably sleeved on the flow shaft. Multiple magnetic blades are fixedly installed on the outer side of the turbine, and a Hall sensor is fixedly installed on one side of the flow pipe. The multiple magnetic blades are adapted to the same Hall sensor.

[0012] By adopting the above technical solution, the turbine speed is positively correlated with the rice flow rate. Quantitative measurement is achieved by using the number of pulses per unit time to correspond to the flow rate value, and the result is displayed on the device's built-in display screen, making it convenient for staff to control and observe the rice flow rate.

[0013] A further feature of this invention is that a precision grinding roller is fixedly sleeved on both rotating shafts.

[0014] By adopting the above technical solution, it is easy to drive the fine grinding roller to rotate via the rotating shaft.

[0015] A further feature of this invention is that the differential mechanism includes a double-row drive wheel, a slow-speed wheel, a slow-speed belt, a fast-speed wheel, and a fast-speed belt. The double-row drive wheel is rotatably mounted on one side of the grinding chamber. The slow-speed wheel and the fast-speed wheel are respectively fixedly sleeved on the outer sides of the two rotating shafts. The same slow-speed belt is wound between the slow-speed wheel and the double-row drive wheel. The same fast-speed belt is wound between the fast-speed wheel and the double-row drive wheel. The diameter of the slow-speed wheel is larger than the diameter of the fast-speed wheel.

[0016] By adopting the above technical solution, since the diameter of the slow wheel is larger than that of the fast wheel, the rotational speed of the slow wheel is lower than that of the fast wheel.

[0017] A further feature of this invention is that a motor slot is provided inside the grinding chamber, and a first servo motor is fixedly installed on the inner side of the motor slot. The output shaft of the first servo motor is fixedly connected to the double-row drive wheels.

[0018] By adopting the above technical solution, the first servo motor can drive the double row of drive wheels to rotate.

[0019] A further feature of this invention is that: a cleaning chamber is provided inside the main body of the grinding mill; a dust outlet is provided at the bottom of the main body of the grinding mill; a discharge outlet is provided on one side of the main body of the grinding mill; both the discharge outlet and the dust outlet are connected to the cleaning chamber; inclined plates are fixedly installed on the inner walls of both sides of the cleaning chamber; and the same ash hopper is fixedly installed at the bottom of the two inclined plates.

[0020] By adopting the above technical solution, the surface of the ash hopper is provided with sieve holes, the pore size of which is smaller than the rice particles but larger than the impurity particle size, so as to achieve rice-impurity separation.

[0021] A further feature of this invention is that a discharge roller is rotatably mounted on one side of the inner wall of the impurity removal chamber, and a spiral blade and four oblique blades are fixedly sleeved on the outer side of the discharge roller, with the four oblique blades located to the right of the spiral blade.

[0022] By adopting the above technical solution, it is easy to move rice and impurities towards the discharge port through the spiral blades and four oblique blades.

[0023] A further feature of this invention is that a drive groove is provided inside the main body of the fine grinding mill, and a second servo motor is fixedly installed on the inner side of the drive groove. The output shaft of the second servo motor is fixedly connected to the discharge roller.

[0024] By adopting the above technical solution, the discharge roller can be rotated by a second servo motor.

[0025] This application includes at least one of the following beneficial technical effects:

[0026] 1. This application utilizes a flow mechanism consisting of a turbine and a Hall sensor. The rotation of the magnetic steel blades causes a change in the magnetic field, which outputs a pulse signal. The Hall sensor uses the Hall effect to convert the change in the magnetic field into an electrical signal, thereby recording the turbine's rotational speed and converting it into the flow rate of rice, which is then displayed on the device's built-in display screen for easy observation of the rice flow rate.

[0027] 2. This application utilizes a differential mechanism consisting of a fast wheel and a slow wheel to create a speed difference between the two fine grinding rollers. This speed difference causes the rice grains to tumble and rotate between the two rollers, avoiding excessive grinding on a single contact surface, making the fine grinding precision more uniform, and reducing local over-grinding or under-grinding phenomena. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of a quantitative rice milling device proposed in this utility model;

[0030] Figure 2 This is a three-dimensional structural breakdown diagram of a quantitative rice milling device proposed in this utility model;

[0031] Figure 3This is a three-dimensional structural disassembly diagram of the flow mechanism of a quantitative rice milling device proposed in this utility model.

[0032] Figure 4 This is a three-dimensional structural disassembly diagram of the differential mechanism of a quantitative rice milling device proposed in this utility model.

[0033] Figure 5 This is a three-dimensional structural breakdown diagram of the discharge roller of a quantitative rice milling device proposed in this utility model.

[0034] In the diagram, 1. Main body of the fine grinding mill; 2. Fine grinding bin; 3. Feed hopper; 4. Electrically controlled valve; 5. Flow pipe; 6. Flow shaft; 7. Turbine; 8. Magnet blades; 9. Hall sensor; 10. Fine grinding roller; 11. Rotary shaft; 12. Double row drive wheel; 13. First servo motor; 14. Slow speed wheel; 15. Slow speed belt; 16. Fast speed wheel; 17. Fast speed belt; 18. Ash hopper; 19. Inclined plate; 20. Second servo motor; 21. Discharge roller; 22. Spiral blade; 23. Inclined blade. Detailed Implementation

[0035] Reference Figure 1-5 A quantitative rice milling device includes a milling machine body 1, a milling chamber 2 fixedly installed on the top of the milling machine body 1, a differential mechanism on one side of the milling chamber 2, two rotating shafts 11 on one side of the differential mechanism, and the other ends of the two rotating shafts 11 extending into the milling chamber 2; a flow pipe 5 fixedly installed on the top of the milling chamber 2, and a flow mechanism on the inner side of the flow pipe 5.

[0036] In this embodiment, an electrically controlled valve 4 is fixedly installed at the top of the flow pipe 5 to facilitate the control of the flow of rice.

[0037] In this embodiment, a feed hopper 3 is fixedly installed on the top of the electrically controlled valve 4 to facilitate the addition of rice.

[0038] In this embodiment, the flow mechanism includes a flow shaft 6, a turbine 7, multiple magnetic blades 8, and a Hall sensor 9. The flow shaft 6 is fixedly installed on the inner side of the flow pipe 5, and the turbine 7 is rotatably sleeved on the flow shaft 6. Multiple magnetic blades 8 are fixedly installed on the outer side of the turbine 7, and a Hall sensor 9 is fixedly installed on one side of the flow pipe 5. The multiple magnetic blades 8 are adapted to the same Hall sensor 9. The rotational speed of the turbine 7 is positively correlated with the rice flow rate. Quantitative measurement is achieved by using the number of pulses per unit time to correspond to the flow rate value, and the result is displayed on the device's built-in display screen, making it convenient for staff to control and observe the rice flow rate.

[0039] In this embodiment, a fine grinding roller 10 is fixedly sleeved on both rotating shafts 11, so that the fine grinding roller 10 can be rotated by the rotating shafts 11.

[0040] In this embodiment, the differential mechanism includes a double-row drive wheel 12, a slow wheel 14, a slow belt 15, a fast wheel 16, and a fast belt 17. The double-row drive wheel 12 is rotatably mounted on one side of the grinding chamber 2. The slow wheel 14 and the fast wheel 16 are respectively fixedly sleeved on the outer sides of the two rotating shafts 11. The same slow belt 15 is wound between the slow wheel 14 and the double-row drive wheel 12, and the same fast belt 17 is wound between the fast wheel 16 and the double-row drive wheel 12. The diameter of the slow wheel 14 is larger than the diameter of the fast wheel 16. Since the diameter of the slow wheel 14 is larger than the diameter of the fast wheel 16, the rotational speed of the slow wheel 14 is lower than that of the fast wheel 16.

[0041] In this embodiment, a motor slot is provided inside the fine grinding chamber 2. A first servo motor 13 is fixedly installed on the inner side of the motor slot. The output shaft of the first servo motor 13 is fixedly connected to the double row drive wheel 12, and the double row drive wheel 12 can be driven to rotate by the first servo motor 13.

[0042] In this embodiment, the main body 1 of the milling machine has an impurity removal chamber inside, a dust outlet at the bottom of the main body 1 of the milling machine, and a discharge outlet on one side of the main body 1 of the milling machine. Both the discharge outlet and the dust outlet are connected to the impurity removal chamber. Inclined plates 19 are fixedly installed on the inner walls of both sides of the impurity removal chamber. The same ash hopper 18 is fixedly installed at the bottom of the two inclined plates 19. The surface of the ash hopper 18 is provided with sieve holes with a diameter smaller than rice particles but larger than impurity particles, so as to achieve rice-impurity separation.

[0043] In this embodiment, a discharge roller 21 is rotatably installed on one side of the inner wall of the impurity removal chamber. A spiral blade 22 and four inclined blades 23 are fixedly sleeved on the outer side of the discharge roller 21. The four inclined blades 23 are all located to the right of the spiral blade 22, so that the rice and impurities can be moved towards the discharge port by the spiral blade 22 and the four inclined blades 23.

[0044] In this embodiment, a drive groove is provided inside the main body 1 of the fine grinding mill. A second servo motor 20 is fixedly installed on the inner side of the drive groove. The output shaft of the second servo motor 20 is fixedly connected to the discharge roller 21, and the discharge roller 21 can be driven to rotate by the second servo motor 20.

[0045] Working principle: During the fine milling of rice, after the operator starts the equipment, the rice is poured into the feed hopper 3. The first servo motor 13 starts and drives the double-row drive wheel 12 to rotate. The rotation of the double-row drive wheel 12 drives the slow wheel 14 and the fast wheel 16 to rotate through the slow belt 15 and the fast belt 17, respectively. Since the diameter of the slow wheel 14 is larger than that of the fast wheel 16, the speed of the slow wheel 14 is lower than that of the fast wheel 16, resulting in a speed difference. The slow wheel 14 and the fast wheel 16 are fixedly sleeved on their respective rotating shafts 11. Therefore, the rotation of the slow wheel 14 and the fast wheel 16 drives the corresponding rotating shafts 11 to rotate, which in turn drives the corresponding fine milling rollers 10 to rotate. The speed difference between the two fine milling rollers 10 causes the rice grains to tumble between the rollers. The rotation avoids excessive grinding on a single contact surface, resulting in more uniform milling precision and reducing local over- or under-milling. The speed difference creates relative motion between the two rollers, producing a dual effect of shearing and friction on the rice grains, more efficiently removing the surface skin and impurities. The rice then falls into the impurity removal chamber inside the main body 1 of the milling machine. The second servo motor 20 starts and drives the discharge roller 21 to rotate. The surface of the discharge roller 21 is fixedly equipped with spiral blades 22 and four inclined blades 23, which can move the rice and impurities towards the discharge port. During the movement, impurities fall through the holes on the surface of the ash hopper 18 and are discharged from the equipment. The rice continues to move towards the discharge port and is then discharged through the discharge port into a container prepared in advance by the staff, completing the milling process.

[0046] The technological advancements of this invention compared to existing technologies are as follows: the rotation of the magnetic steel blades 8 causes a change in the magnetic field, outputting a pulse signal. The Hall sensor 9 uses the Hall effect to convert the magnetic field change into an electrical signal, thereby recording the rotational speed of the turbine 7, which is then converted into the rice flow rate and displayed on the device's built-in display screen for easy observation of the rice flow rate. Furthermore, a speed difference can be created between the two fine grinding rollers 10, causing the rice grains to tumble and rotate between the rollers, avoiding over-grinding on a single contact surface, resulting in more uniform fine grinding precision and reducing local over-grinding or under-grinding phenomena.

[0047] The present application provides a detailed description of a quantitative rice milling device. Specific embodiments have been used to illustrate the principles and implementation methods of this application. These embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims.

Claims

1. A rice polishing apparatus for quantifying, characterized by, The machine includes a fine grinding mill body (1), a fine grinding chamber (2) is fixedly installed on the top of the fine grinding mill body (1), a differential mechanism is provided on one side of the fine grinding chamber (2), and two rotating shafts (11) are provided on one side of the differential mechanism, with the other ends of the two rotating shafts (11) extending into the fine grinding chamber (2). A flow pipe (5) is fixedly installed on the top of the fine grinding chamber (2), and a flow mechanism is provided on the inner side of the flow pipe (5).

2. A device for quantitatively refining rice according to claim 1, wherein: An electrically controlled valve (4) is fixedly installed at the top of the flow pipe (5).

3. A device for quantitatively refining rice according to claim 2, wherein: The top of the electrically controlled valve (4) is fixedly equipped with a feed hopper (3).

4. The device for quantitatively refining rice according to claim 1, wherein: The flow mechanism includes a flow shaft (6), a turbine (7), multiple magnetic blades (8), and a Hall sensor (9). The flow shaft (6) is fixedly installed on the inner side of the flow pipe (5). The turbine (7) is rotatably sleeved on the flow shaft (6). Multiple magnetic blades (8) are fixedly installed on the outer side of the turbine (7). A Hall sensor (9) is fixedly installed on one side of the flow pipe (5). The multiple magnetic blades (8) are adapted to the same Hall sensor (9).

5. A device for quantitatively refining rice according to claim 4, wherein: A fine grinding roller (10) is fixedly fitted on both rotating shafts (11).

6. A device for quantitatively refining rice according to claim 5, wherein: The differential mechanism includes a double-row drive wheel (12), a slow wheel (14), a slow belt (15), a fast wheel (16), and a fast belt (17). The double-row drive wheel (12) is rotatably mounted on one side of the grinding chamber (2). The slow wheel (14) and the fast wheel (16) are respectively fixedly sleeved on the outer sides of the two rotating shafts (11). The slow wheel (14) and the double-row drive wheel (12) are connected by the same slow belt (15). The fast wheel (16) and the double-row drive wheel (12) are connected by the same fast belt (17). The diameter of the slow wheel (14) is larger than the diameter of the fast wheel (16).

7. A device for quantitatively refining rice according to claim 6, wherein: The interior of the grinding chamber (2) is provided with a motor slot, and a first servo motor (13) is fixedly installed on the inner side of the motor slot. The output shaft of the first servo motor (13) is fixedly connected to the double row of drive wheels (12).

8. The device for quantitatively refining rice according to claim 1, wherein: The main body (1) of the fine grinding mill has a cleaning chamber inside, a dust outlet is provided at the bottom of the main body (1), and a discharge outlet is provided on one side of the main body (1). The discharge outlet and the dust outlet are connected to the cleaning chamber. Inclined plates (19) are fixedly installed on the inner walls of both sides of the cleaning chamber, and the same ash hopper (18) is fixedly installed at the bottom of the two inclined plates (19).

9. A device for quantifying rice polishing according to claim 8, characterized in that: A discharge roller (21) is rotatably installed on one side of the inner wall of the impurity removal chamber. A spiral blade (22) and four oblique blades (23) are fixedly sleeved on the outer side of the discharge roller (21). The four oblique blades (23) are all located to the right of the spiral blade (22).

10. A device for quantitatively refining rice according to claim 9, wherein: The main body (1) of the fine grinding mill has a drive groove inside, and a second servo motor (20) is fixedly installed on the inner side of the drive groove. The output shaft of the second servo motor (20) is fixedly connected to the discharge roller (21).

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