Rice processing and polishing apparatus and process

Abstract

The application discloses a rice processing and polishing equipment and a process, which comprises a casing, a feeding hopper arranged on one side of the top of the casing, a control cabinet arranged on the other side of the top of the casing, a discharging port arranged on one side of the casing, a separation hopper arranged at the bottom of the casing, and a ventilation box arranged at the side of the casing, wherein a flip cover is arranged in the casing and communicates with the ventilation box, a grinding device is arranged in the flip cover, and a plurality of stripping devices are arranged between two grinding balls on the grinding cylinder shell, the device mainly makes the grinding ball and the movable ball form a gap through the pendulum movement of the movable ball or the thorn needle in the grinding cylinder under the traction of the first spring after the movable ball or the thorn needle contacts the grinding ball, so that the polished rice grains are polished for multiple times, meanwhile, the second sliding rod drives the thorn needle to push the lagged rice grains to the discharging port direction when the pendulum is performed, the smoothness of the discharging is improved, the whole production is convenient, and the time for collecting the rice grains after the brown rice is polished is shortened.

Description

Technical Field

[0001] This invention relates to the field of rice processing and polishing technology, specifically to a rice processing and polishing equipment and process. Background Technology

[0002] After a series of processing steps, paddy rice becomes finished rice. Finished rice, because of its color after hulling, needs to be processed again to become polished rice. This polished rice does not need to be washed and is also called clean rice. It is a type of rice that does not need to be washed before cooking and meets hygiene requirements. This type of rice not only simplifies the cooking process and time, but also retains the vitamins and minerals in the rice, avoiding the loss of dry matter and nutrients during the washing process.

[0003] Current rice polishing processes utilize polishing machines, which typically consist of one or more grinding rollers grinding the rice surface inside a grinding chamber. The rice surface is then polished, and a blower blows the resulting bran powder out of the grinding chamber for collection. Existing technology uses cylindrical grinding rollers with multiple grinding protrusions and straight grooves on their circumference. While these grooves effectively prevent clogging, the existing grinding protrusions inevitably come into contact with the rice, resulting in point-to-surface contact. Furthermore, the fixed size of the grinding chamber makes the rice structure easily damaged, leading to a reduction in standard polished rice and impacting sales.

[0004] To address this issue, existing technologies have been improved to increase the rice milling capacity of equipment. This technology modifies the grinding roller, replacing the grinding grooves with spherical ones. These metal spheres are staggered to form a spiral groove for easy feeding, resulting in point-to-point contact between the metal sphere surface and the rice. When the metal sphere is in contact with the rice, the point closest to the grinding chamber on the rotating roller will compress the rice, thus grinding it and reducing the contact area to improve the rice grain yield. However, a drawback is that other rice grains can slide on other surfaces of the metal spheres, causing most grains to lag. Furthermore, as the machine needs to continuously fill the grinding chamber during processing, the rotating roller can push some rice grains back to their original positions or repeatedly process a certain area, slowing down the output and affecting production efficiency. Additionally, rice grains can accumulate and easily get stuck between the two metal spheres, which is only noticeable when the equipment is shut down and requires cumbersome manual cleaning. Therefore, we propose a rice processing and polishing equipment and process. Summary of the Invention

[0005] The purpose of this invention is to provide a rice processing and polishing equipment and process to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rice processing and polishing equipment and process, comprising a casing, a feeding hopper located on one side of the top of the casing, a control console located on the other side of the top of the casing, a discharge port located on one side of the casing, a separation hopper located at the bottom of the casing, and a ventilation box located on the side of the casing. A flip-top shell communicating with the ventilation box is installed inside the casing. A grinding device is installed inside the flip-top shell. The grinding device includes a grinding cylinder rotatably connected inside the flip-top shell, a grinding roller rotatably connected inside the grinding cylinder and extending to the bottom of the feeding hopper, a feeding spiral blade located at one end of the grinding roller and communicating with the feeding hopper, multiple fixed plates on the grinding roller, multiple sliders equidistantly sliding on each fixed plate, grinding balls on each slider, and multiple peeling devices on the grinding cylinder for cleaning rice grains lagging between adjacent grinding balls. A ventilation assembly is installed between two of the sliders to change the distance between the two grinding balls and accelerate the discharge speed.

[0007] Preferably, the peeling device includes a plurality of fixed sleeves disposed on the grinding cylinder, a plurality of limiting blocks disposed on the circumferential surface of the fixed sleeves, a first slide rod sliding on each limiting block, a first spring disposed inside each limiting block and connected to the first slide rod, a second slide rod suspended between the plurality of first springs, a movable ball sliding on the second slide rod, a needle disposed on the movable ball at one end facing the grinding roller, and a plurality of fixed rings disposed on the grinding roller for fitting with the movable ball, wherein the needle is located between two adjacent grinding balls.

[0008] Preferably, the grinding roller is equipped with a drive component for lifting and lowering the ventilation component, and the two sliders are each equipped with a sealing plate on their opposite sides. The ventilation component and the sealing plate are slidably connected. The ventilation component includes an air outlet plate that slides between the two sealing plates, and an air outlet block located on one side of the air outlet plate. The air outlet block is in communication with the grinding roller.

[0009] Preferably, the drive assembly includes multiple lifting plates arranged in a rectangular shape at the bottom of the ventilator, multiple ventilator connection ports opened on the lifting plates and aligned with the ventilator, multiple second springs arranged in two groups at both ends between the fixed plate and the lifting plate, a lifting ball suspended on each second spring, the lifting ball and the lifting plate being slidably connected, a rotating rod disposed inside the multiple lifting plates, a pair of crossbeams slidably connected to both ends of the rotating rod, a mounting plate disposed between the multiple fixed plates, and a rotating handle rotatably connected to the mounting plate, the rotating handle and the rotating rod being rotatably connected, and the lifting ball and the crossbeam being slidably connected.

[0010] Preferably, a motor is installed at the bottom of the flip cover, a transmission roller is sleeved on the output shaft of the motor, spiral blades are installed on both sides inside the flip cover, the transmission roller is connected to the spiral blades by a belt, a gear is sleeved on the shaft of the transmission roller, a second transmission gear meshing with the gear is installed at one end inside the flip cover, a first transmission gear and a second transmission gear meshing together are provided at one end of the grinding cylinder, a rotating shaft is sleeved on the shaft of the second transmission gear, the rotating shaft is connected to a rotating shaft by a belt, the rotating shaft is rotatably connected to the flip cover, and a cleaning brush is installed inside the flip cover on the rotating shaft.

[0011] Preferably, the shaft of the second transmission gear is fitted with a spiral blade inside the flip-top shell. One end of the cleaning brush contacts the grinding cylinder and the spiral blade by rotation. The spiral blade and the grinding cylinder rotate at the same speed but in opposite directions. An arc panel is installed at the bottom of the flip-top shell. The arc panel is V-shaped and communicates with the separation hopper.

[0012] Preferably, the air outlet plate has multiple air holes, and one end of the spiral blade inside the ventilation box is connected to the fan through a pipe. The air holes and the spiral blade are connected.

[0013] Preferably, the sealing plate is made of a magnet, the vent plate is made of a magnetic metal, and the vent plate and the sealing plate are magnetically attracted to each other.

[0014] Preferably, the maximum and minimum sliding distance between two adjacent grinding balls is between 30mm and 10mm.

[0015] Preferably, it includes the following steps:

[0016] A> First, after the equipment is installed and debugged, the brown rice is manually put into the feed hopper. Then, the motor is started. The rice passes through the feed hopper and comes into contact with the feeding screw. The rotation of the motor shaft drives the feeding screw to rotate, turning the brown rice between the screw and the grinding cylinder.

[0017] B> The motor shaft drives the gear to rotate, and the rotation of the gear drives the second transmission gear to rotate, causing the spiral blade and the grinding cylinder to rotate in opposite directions, thus accelerating the grinding efficiency;

[0018] C> The grinding balls on the grinding roller come into contact with the brown rice through rotation. Then, as the grinding roller rotates, the grinding balls rotate along the inside of the grinding cylinder. When the grinding roller rotates, the outer arc surface of the grinding balls comes into contact with the brown rice, grinding and polishing the rice grains in the inner circle of the grinding cylinder.

[0019] D> Immediately afterward, as the grinding roller rotates, the movable ball rotates with the grinding roller and moves between the two grinding balls through the abutment of the needle and the arc surface of the air outlet plate, moving in the lagging rice grains. The needle is pulled by the first spring and then swings back and forth between the two grinding balls, pushing the rice grains towards the discharge port. Finally, the ground rice grains are collected from the discharge port.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. In this invention, the distance between two adjacent grinding balls can be changed by manually driving a rotating handle, thereby widening the channel between the two grinding balls and the grinding cylinder, allowing more rice grains to pass through. This prevents the size of the rice grains from being restricted. Multiple peeling devices are installed on the outer shell of the grinding cylinder between the two grinding balls. These devices mainly work by having the movable ball or the needle make a pendulum motion inside the grinding cylinder under the traction of the first spring after contacting the grinding ball, creating a gap between the grinding ball and the movable ball, which is conducive to polishing the rice grains multiple times. At the same time, the second slide rod drives the needle to push the lagging rice grains towards the discharge port during the pendulum motion, improving the smoothness of the discharge, bringing convenience to the overall production, and shortening the time for the equipment to collect rice grains after polishing the brown rice.

[0022] 2. When processing rice grains of relatively small size, this invention can use a needle to pick out the rice grains located between the two grinding balls to prevent grain jamming and affect the processing effect. In addition, this can also be done when the equipment is turned off.

[0023] 3. The present invention uses a first transmission gear and a second transmission gear meshing together to make the grinding roller and the grinding cylinder rotate in opposite directions at the same speed, so that the brown rice grains slide along the inner ring of the grinding cylinder, increasing the contact area between the grinding ball and the rice grains, and increasing the number of polishing times of the rice grains in a short time, which is beneficial for the equipment to polish into fine rice.

[0024] 4. The present invention enables the cleaning brush and spiral blade to rotate by rotating the second transmission gear. The cleaning brush can effectively clean the blockages on the surface of the equipment during processing, and the spiral blade can concentrate the blockages for processing, which greatly facilitates production and prevents the blockages and polishing rice grains from being discharged into the outlet together, affecting quality control. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the overall flip-top shell of the present invention when it is flipped open;

[0027] Figure 3 This is a schematic diagram of the stripping device of the present invention;

[0028] Figure 4 This is a schematic diagram of the overall internal structure of the present invention;

[0029] Figure 5 This is a schematic diagram showing the connection relationship and splicing structure of the grinding cylinder and grinding roller of the present invention;

[0030] Figure 6 This is a schematic diagram of the grinding cylinder of the present invention from another perspective;

[0031] Figure 7 This is a schematic diagram of the grinding roller structure of the present invention;

[0032] Figure 8 This is a schematic diagram of the internal structure of the grinding roller of the present invention;

[0033] Figure 9 This is a schematic diagram of the ventilation component structure of the present invention;

[0034] Figure 10 This is a schematic diagram of the driving component structure of the present invention.

[0035] In the diagram: 1-Machine casing; 2-Ventilation box; 3-Control console; 4-Feed hopper; 5-Flip-top shell; 6-Arc panel; 7-Separation hopper; 8-Spiral blade; 9-Grinding cylinder; 10-Separation device; 11-Motor; 12-Drive roller; 13-Feed spiral blade; 14-First drive gear; 15-Second drive gear; 16-Rotating shaft; 17-Cleaning brush; 18-Grinding roller; 1801-Fixing ring; 19-Grinding ball; 20-Slider ; 21-Sealing plate; 22-Ventilation block; 23-Air outlet plate; 24-Fixing sleeve; 25-Limiting block; 2501-First sliding rod; 26-Moving ball; 2601-Second sliding rod; 27-First spring; 28-Piercing needle; 29-Fixing plate; 30-Second spring; 3001-Lifting ball; 31-Lifting plate; 32-Ventilation block connection port; 33-Cross ramp; 34-Rotating rod; 35-Rotating handle; 3501-Mounting plate. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figure 1-10This invention provides a technical solution: a rice processing and polishing equipment and process, including a housing 1, an inlet hopper 4 located on one side of the top of the housing 1, a control console 3 located on the other side of the top of the housing 1, an outlet hopper located on one side of the housing 1, and a ventilation box 2 located on the side of the housing 1. A flip-top shell 5 communicating with the ventilation box 2 is installed inside the housing 1. As shown in Figure 1 and any figure, the brown rice in the paddy is first further screened, and some coarser brown rice grains are collected. Then, these grains are poured into the inlet hopper manually or by conveying equipment. Inside the hopper 4, as the machine operates, the brown rice undergoes grinding and polishing. The present invention supplements existing technology with the following novel technology: a grinding device is installed inside the flip-top shell 5. This grinding device includes a grinding cylinder 9 rotatably connected inside the flip-top shell 5, a grinding roller 18 rotatably connected inside the grinding cylinder 9 and extending to the bottom of the hopper 4, a feeding spiral blade 13 located at one end of the grinding roller 18 and communicating with the hopper 4, multiple fixed plates 29 mounted on the grinding roller 18, and multiple equidistant sliding plates 29 on each fixed plate. The plate 29 has sliders 20, grinding balls 19 on each slider 20 (where brown rice passes between the grinding balls 19 and the grinding cylinder 9, and the grinding cylinder 9 and grinding balls 19 rotate relative to each other to grind the surface of the brown rice), and multiple peeling devices 10 on the grinding cylinder 9 for cleaning rice grains that lag between adjacent grinding balls 19. A ventilation assembly is installed between two sliders 20 to change the distance between the two grinding balls 19 to increase the discharge speed. To further increase the grinding speed, a ventilation assembly is installed in the equipment. This ventilation assembly can... The distance between the grinding balls 19 is increased by manually rotating the drive component to raise and lower the ventilation component on the grinding cylinder 9. This increases the passage path of the brown rice, allowing some of the brown rice to quickly move to the outlet as the grinding roller 18 and the grinding cylinder 9 rotate relative to each other. During this process, the increased passage path of the brown rice also causes friction between the brown rice grains, increasing the number of frictions between them. With the stirring of most of the grinding balls 19, the polishing effect of the brown rice is further improved.

[0038] In addition, this equipment is not limited to processing brown rice, a type of rice commonly consumed in my country. For example, it can also process "Northeast Rice" with large grain size, authentic "Thai Jasmine Rice", and black rice among miscellaneous grains. These grains are relatively large, so the processing path needs to be expanded in the equipment. In other words, the distance between two adjacent grinding balls 19 needs to be changed and increased slightly.

[0039] Furthermore, the above structural effects are described in more detail, such as... Figure 3It can be seen that the peeling device 10 includes a plurality of fixed sleeves 24 disposed on the grinding cylinder 9, a plurality of limiting blocks 25 disposed on the circumferential surface of the fixed sleeves 24, a first slide rod 2501 sliding on each limiting block 25, a first spring 27 disposed inside each limiting block 25 and connected to the first slide rod 2501, a second slide rod 2601 suspended between the plurality of first springs 27, a movable ball 26 sliding on the second slide rod 2601, a needle 28 disposed on the movable ball 26 at one end facing the grinding roller 18, and a plurality of fixing rings 1801 disposed on the grinding roller 18 for engaging with the movable ball 26 (connected to the grinding roller 18). Figure 3 and Figure 6 It can be inferred that the fixed ring 1801 is on the grinding roller 18. The needle 28 is located between two adjacent grinding balls 19. When the brown rice enters the feed hopper 4, it is pushed by the feed spiral blade 13, so that the brown rice enters multiple grinding balls 19. The multiple grinding balls 19 are divided into four groups around the circumference of the grinding roller 18, and the four groups are installed at equal distances and staggered (it is not difficult to see from the overall attached drawings). This makes the grinding balls 19 between each two adjacent groups form a channel facing the discharge port. Since the four groups of grinding balls 19 are continuous, the channels are connected to form a complete spiral channel, which can polish the brown rice during the conveying process. Since the grinding balls 19 are hemispherical, most of the brown rice can easily slide on the surface of the ball, resulting in slow discharge. When the grinding roller 18 rotates, the second slide rod 2601 rotates with the grinding roller 18 under the traction of the first spring 27. The movable ball 26 sliding on the second slide rod 2601 contacts the grinding ball 19, so that the two are in contact. Point-to-point contact occurs during this process. As the grinding roller 18 needle 28 moves obliquely from between two grinding balls 19 in one group to between two grinding balls 19 in the next group, it inevitably comes into contact with the grinding balls 19 in the next group. This causes the lagging brown rice to fluctuate towards the discharge port, accelerating the discharge speed. During this process, the position of the movable ball 26 deflects. There is brown rice between the movable ball 26 and the grinding ball 19, which not only allows the grinding ball 19 to contact the grinding cylinder 9 to grind the brown rice, but also allows the movable ball 26 to grind the brown rice between itself and the grinding ball 19. This improves the discharge process while also taking into account the grinding efficiency. When the brown rice moves in the channel, the movable ball 26 slides along the second slide bar 2601 until it contacts the fixed ring 1801. At this point, the channel space is at its maximum, so the movable ball 26 contacts the fixed ring 1801 to form a seal. No air will be released in this area; air can only be released through the ventilation component to discharge the polished impurities.

[0040] Throughout the polishing process, slag removal is required. Therefore, a ventilation component is used to both ventilate and remove impurities while changing the distance between the two grinding balls 19. The grinding roller 18 has a drive component installed inside for raising and lowering the ventilation component. Each of the two sliders 20 has a sealing plate 21 mounted on its opposite side. The ventilation component and the sealing plate 21 are slidably connected. The ventilation component includes an air outlet plate 23 sliding between the two sealing plates 21, and a ventilation block 22 located on one side of the air outlet plate 23. The ventilation block 22 communicates with the grinding roller 18. Figure 9 It is known that the air outlet plate 23 has multiple air holes. Air enters from one end of the grinding roller 18 inside the ventilation box 2, and high-pressure air is delivered between the grinding roller 18 and the grinding cylinder 9. Then, the debris and dust are blown out of the grinding cylinder 9. During this process, the air outlet plate 23 can slide between the two closed plates 21 because the two are magnetically attracted together. In addition, the pointed part of the air outlet plate 23 cannot exceed the radius of the grinding ball 19. Of course, this requires a reasonable tolerance design so that when the manual rotation of the drive component is at its maximum angle, it can be ensured that it will not exceed the radius of the grinding ball 19.

[0041] Example 2: Further, the drive assembly includes multiple rectangularly distributed lifting plates 31 at the bottom of the vent block 22, multiple vent block connection ports 32 opened on the lifting plates 31 and aligned with the vent block 22, multiple second springs 30 arranged in two groups at both ends between the fixed plate 29 and the lifting plates 31, lifting balls 3001 suspended on each second spring 30, the lifting balls 3001 and the lifting plates 31 being slidably connected, rotating rods 34 disposed inside the multiple lifting plates 31, a pair of cross-shaped ramps 33 slidably connected to both ends of the rotating rods 34, mounting plates 3501 disposed between the multiple fixed plates 29, and rotating handles 35 rotatably connected to the mounting plates 3501. The rotating handle 35 and the rotating rod 34 are rotatably connected, and the lifting ball 3001 and the cross-shaped inclined platform 33 are slidably connected. First, the bottom rear cover of the control console 3 in the equipment is opened manually, located above the discharge port, to expand the channel space between the grinding ball 19 and the grinding cylinder 9. Of course, the grade and variety of brown rice to be processed can also be selected according to the needs. If processing brown rice with a larger particle diameter, in order to control the quality of the product and reduce the occurrence of broken rice, the rotating handle 35 needs to be manually rotated by hand before the equipment starts processing. Since the fixed plate 29 and the mounting plate 3501 abut against each other, the rotating handle 35 moves on the mounting plate 3501 through the thread (e.g. Figure 10As can be seen, the manual operator rotates the handle 35, which moves towards the discharge port. The cross-shaped inclined platform 33 moves along with the handle 35. During this process, each cross-shaped inclined platform 33 moves towards the discharge port. Then, the cross-shaped inclined platform 33 drives the lifting ball 3001 to rise. When the lifting ball 3001 rises, it compresses the second spring 30. The lifting plate 31 rises along with the lifting ball 3001. When the lifting plate 31 rises, it drives the ventilation block 22 to drive the air outlet plate 23 to rise. When the air outlet plate 23 rises, it widens the distance between the two sealing plates 21. Then, it can widen the distance between two adjacent grinding balls 19 (when designing the product, it is sufficient to ensure that the maximum and minimum sliding distance between two adjacent grinding balls 19 is between 30mm and 10mm, which depends on the inclination angle of the cross-shaped inclined platform 33). In this way, brown rice can be produced reasonably and qualifiedly.

[0042] It is worth mentioning that, for the stability of the equipment during processing, two cross-shaped ramps 33 are used to move simultaneously. When the cross-shaped ramp 33 connected to the rotating handle 35 moves, the rotating rod 34 (one end of the rotating rod 34 is threaded) passes through the cross-shaped ramp 33 and the rotating handle 35 and is connected. When the rotating handle 35 rotates, it drives the rotating rod 34 to rotate. When the rotating rod 34 rotates, it drives the other cross-shaped ramp 33 to move towards the discharge port. During this process, the cross-shaped ramp 33 contacts the lifting ball 3001 and causes the lifting plate 31 to rise, making the whole system very stable.

[0043] A motor 11 is installed at the bottom of the flip-top shell 5. A transmission roller 12 is sleeved on the output shaft of the motor 11. Spiral blades 8 are installed on both sides inside the flip-top shell 5. The transmission roller 12 is connected to the spiral blades 8 by a belt. A gear is sleeved on the shaft of the transmission roller 12. A second transmission gear 15 meshing with the gear is installed at one end inside the flip-top shell 5. A first transmission gear 14 and a second transmission gear 15 meshing together are provided at one end of the grinding cylinder 9. A rotating shaft is sleeved on the shaft of the second transmission gear 15. The rotating shaft is connected to a rotating shaft 16 by a belt. The rotating shaft 16 is rotatably connected to the flip-top shell 5. A cleaning brush 17 is installed inside the flip-top shell 5 on the rotating shaft 16. The brush can be turned on when the grinding cylinder 9 and the grinding roller 18 need to rotate. Motor 11 drives transmission roller 12 to rotate. When transmission roller 12 rotates, it drives grinding roller 18 to rotate via belt. At the same time, since a gear (not shown inside the equipment) is fitted on the shaft of motor 11 and meshes with a second transmission gear 15, the rotation of the second transmission gear 15 drives the rotation of the first transmission gear 14, which in turn drives the grinding cylinder 9 to rotate. Therefore, the grinding cylinder 9 and the grinding roller 18 move in opposite directions at the same speed, achieving a good transmission effect. However, due to long-term processing of brown rice, the apertures on the grinding cylinder 9 will inevitably become clogged. Therefore, in this design, a rotating shaft 16 is used to rotate together with the grinding cylinder 9 and the grinding roller 18. The rotating shaft 16 drives the cleaning brush 17 to rotate and clean the grinding cylinder 9, removing the blockage from the outside of the grinding cylinder 9, which is beneficial for long-term production.

[0044] The shaft of the second transmission gear 15 is fitted with a spiral blade 8 inside the flip-top shell 5. One end of the cleaning brush 17 rotates and contacts the grinding cylinder 9 and the spiral blade 8 respectively. The spiral blade 8 and the grinding cylinder 9 rotate at the same speed but in opposite directions. An arc panel 6 is installed at the bottom of the flip-top shell 5. The arc panel 6 is V-shaped and communicates with the separation hopper 7. When the blockage on the grinding cylinder 9 is cleared, it will fall onto any position on the arc panel 6. In order to thoroughly clean the arc panel 6, the scheme uses a pair of spiral blades 8 controlled by the second transmission gear 15 to clean it (the other spiral blade 8 is controlled by a belt connected to one end of the rotating shaft 16, which is not shown in the drawing). This allows the blockage to be discharged outside the separation hopper 7, thus completing the entire production process.

[0045] The implementation method includes the following steps:

[0046] A> First, after the equipment is installed and debugged, the brown rice is manually put into the feed hopper 4. Then, the motor 11 is started. The rice passes through the feed hopper 4 and comes into contact with the feeding spiral blade 13. The rotation of the motor 11 shaft drives the feeding spiral blade 13 to rotate, turning the brown rice into the space between the spiral blade 8 and the grinding cylinder 9.

[0047] B>Motor 11 drives the gear to rotate, and the rotation of the gear drives the second transmission gear 15 to rotate, causing the spiral blade 8 and the grinding cylinder 9 to rotate in opposite directions, thus accelerating the grinding efficiency;

[0048] C> The grinding balls 19 on the grinding roller 18 come into contact with the brown rice by rotating. Then, when the grinding roller 18 rotates, the grinding balls 19 rotate along the inside of the grinding cylinder 9. When the grinding roller 18 rotates, the outer arc surface of the grinding balls 19 comes into contact with the brown rice, and the rice grains are ground and polished in the inner circle of the grinding cylinder 9.

[0049] D> Immediately afterward, as the grinding roller 18 rotates, the movable ball 26 rotates with the grinding roller 18 and moves between the two grinding balls 19 through the abutment of the needle 28 and the arc surface of the air outlet plate 23, moving in the lagging rice grains. The needle 28 is pulled by the first spring 27 and then swings back and forth between the two grinding balls 19, pushing the rice grains towards the discharge port, and finally collecting the ground rice grains from the discharge port.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rice processing and polishing device, comprising a housing (1), a feed hopper (4) located on one side of the top of the housing (1), a control console (3) located on the other side of the top of the housing (1), a discharge port located on one side of the housing (1), a separation hopper (7) located at the bottom of the housing (1), and a ventilation box (2) located on the side of the housing (1), characterized in that: The casing (1) is equipped with a flip-top shell (5) that communicates with the ventilation box (2). The flip-top shell (5) is equipped with a grinding device. The grinding device includes a grinding cylinder (9) rotatably connected inside the flip-top shell (5), a grinding roller (18) rotatably connected inside the grinding cylinder (9) and extending to the bottom of the feed hopper (4), a feeding spiral blade (13) located at one end of the grinding roller (18) and communicating with the feed hopper (4), multiple fixed plates (29) located on the grinding roller (18), multiple sliders (20) equidistantly sliding on each fixed plate (29), grinding balls (19) located on each slider (20), and multiple peeling devices (10) located on the grinding cylinder (9) for cleaning the rice grains that lag between two adjacent grinding balls (19). A ventilation component is installed between two sliders (20) to change the distance between the two grinding balls (19) to speed up the discharge speed. The peeling device (10) includes a plurality of fixed sleeves (24) disposed on the grinding cylinder (9), a plurality of limiting blocks (25) disposed on the circumferential surface of the fixed sleeves (24), a first slide rod (2501) sliding on each limiting block (25), a first spring (27) disposed inside each limiting block (25) and connected to the first slide rod (2501), a second slide rod (2601) suspended between the plurality of first springs (27), a movable ball (26) sliding on the second slide rod (2601), a needle (28) disposed on the movable ball (26) at one end facing the grinding roller (18), and a plurality of fixed rings (1801) disposed on the grinding roller (18) for fitting with the movable ball (26), wherein the needle (28) is located between two adjacent grinding balls (19); The grinding roller (18) is equipped with a drive component for lifting and lowering the ventilation component. Both sliders (20) are equipped with a sealing plate (21) on their opposite sides. The ventilation component and the sealing plate (21) are slidably connected. The ventilation component includes an air outlet plate (23) that slides between the two sealing plates (21) and an air outlet block (22) located on one side of the air outlet plate (23). The air outlet block (22) communicates with the grinding roller (18). The drive assembly includes multiple lifting plates (31) arranged in a rectangular shape at the bottom of the ventilation block (22), multiple ventilation block connection ports (32) opened on the lifting plates (31) and aligned with the ventilation block (22), multiple second springs (30) arranged in two groups at both ends between the fixed plate (29) and the lifting plate (31), lifting balls (3001) suspended on each second spring (30), the lifting balls (3001) and the lifting plate (31) being slidably connected, rotating rods (34) arranged inside the multiple lifting plates (31), a pair of cross ramps (33) slidably connected at both ends of the rotating rods (34), a mounting plate (3501) arranged between the multiple fixed plates (29), and a rotating handle (35) rotatably connected to the mounting plate (3501), the rotating handle (35) and the rotating rod (34) being rotatably connected, and the lifting balls (3001) and the cross ramps (33) being slidably connected.

2. The rice processing and polishing equipment according to claim 1, characterized in that: A motor (11) is installed at the bottom of the flip-top shell (5). A transmission roller (12) is sleeved on the output shaft of the motor (11). Spiral blades (8) are installed on both sides inside the flip-top shell (5). The transmission roller (12) is connected to the spiral blades (8) by a belt. A gear is sleeved on the shaft of the transmission roller (12). A second transmission gear (15) meshing with the gear is installed at one end inside the flip-top shell (5). A first transmission gear (14) and a second transmission gear (15) meshing together are provided at one end of the grinding cylinder (9). A rotating shaft is sleeved on the shaft of the second transmission gear (15). A rotating shaft (16) is connected to the rotating shaft by a belt. The rotating shaft (16) is rotatably connected to the flip-top shell (5). A cleaning brush (17) is installed inside the flip-top shell (5) on the rotating shaft (16).

3. The rice processing and polishing equipment according to claim 2, characterized in that: The shaft of the second transmission gear (15) is fitted with a spiral blade (8) inside the flip cover (5). One end of the cleaning brush (17) contacts the grinding cylinder (9) and the spiral blade (8) by rotation. The spiral blade (8) and the grinding cylinder (9) rotate at the same speed but in opposite directions. An arc panel (6) is installed at the bottom of the flip cover (5). The arc panel (6) is V-shaped and communicates with the separation bucket (7).

4. The rice processing and polishing equipment according to claim 3, characterized in that: The air outlet plate (23) has multiple air holes. One end of the spiral blade (8) inside the ventilation box (2) is connected to the fan through a pipe. The air holes and the spiral blade (8) are connected.

5. The rice processing and polishing equipment according to claim 4, characterized in that: The sealing plate (21) is made of magnets, and the vent plate (23) is made of magnetic metal. The vent plate (23) and the sealing plate (21) are magnetically attracted to each other.

6. The rice processing and polishing equipment according to claim 5, characterized in that: The gap between adjacent grinding balls (19) is controlled within the range of 10 mm to 30 mm.

7. The method for rice production using the paddy processing and polishing equipment according to any one of claims 1-6, characterized in that: Includes the following steps: A> First, the equipment is installed and debugged. Then, the brown rice is manually put into the feed hopper (4). Then, the motor (11) is started. The rice passes through the feed hopper (4) and the feeding spiral blade (13). The motor (11) shaft rotates, driving the feeding spiral blade (13) to rotate, and the brown rice is transferred between the spiral blade (8) and the grinding cylinder (9). B> The motor (11) shaft drives the gear to rotate, and the gear rotation drives the second transmission gear (15) to rotate, causing the spiral blade (8) and the grinding cylinder (9) to rotate in opposite directions, thus accelerating the grinding efficiency; C> The grinding ball (19) on the grinding roller (18) comes into contact with the brown rice by rotating. Then, when the grinding roller (18) rotates, the grinding ball (19) rotates along the inside of the grinding cylinder (9). When the grinding roller (18) rotates, the outer arc surface of the grinding ball (19) comes into contact with the brown rice, and the rice grains are ground and polished in the inner circle of the grinding cylinder (9). D> Immediately after the grinding roller (18) rotates, the movable ball (26) rotates with the grinding roller (18) and moves between the two grinding balls (19) through the needle (28) and the arc surface of the air outlet plate (23) against the lagging rice grains. The needle (28) is pulled by the first spring (7) and then swings back and forth between the two grinding balls (19), pushing the rice grains to move towards the discharge port. Finally, the ground rice grains are collected from the discharge port.

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