A polishing device for rice production
By designing a combination of screens, cams, slide plates, and impurity removal components, the problem of rice breakage and dust separation in rice polishing machines was solved, achieving efficient screening and dust removal of rice, and improving rice quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING LINGTONG RICE IND CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-02
AI Technical Summary
During the polishing process of existing rice polishing machines, some rice is broken due to over-polishing, and the broken rice is difficult to separate from qualified rice, affecting the appearance and quality of the rice.
A polishing device for rice production was designed, which adopts a combination structure of screen, cam and slide plate. The screen screens the rice and the cam and slide plate work together to move the screen and reduce the accumulation of impurities. At the same time, the impact of the impact plate and the vibration of the tuning fork accelerate the flow of rice. The device is combined with the exhaust pipe and the impurity removal component to remove dust.
It enables efficient sorting of rice and rice bran powder, reduces rice breakage rate, improves the appearance and quality of rice, effectively removes dust and impurities, and improves production efficiency.
Smart Images
Figure CN224308456U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polishing devices, specifically a polishing device for rice production. Background Technology
[0002] Rice is one of the world's most important food crops. It is the edible part of paddy rice obtained after processing such as hulling and milling. Rice is rich in carbohydrates, and also contains protein, vitamins, and minerals, making it an important source of energy for humans.
[0003] Rice polishing is an important step in rice processing. Polishing removes bran and impurities from the surface of rice, making the rice grains smooth, shiny, and enhancing their commercial value.
[0004] Existing rice polishing machines typically separate the rice bran powder from the rice during polishing. However, during use and observation, it has been found that some rice breaks due to over-polishing. These broken rice grains are difficult to separate from the qualified rice, which in turn reduces the appearance and quality of the produced rice.
[0005] Therefore, a polishing device for rice production is proposed to address the above problems. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A polishing device for rice production, comprising a housing, the top of which is connected to a feed inlet; the inner wall of the housing is provided with a slope, and the slope is located at the bottom of the feed inlet; the inner wall of the housing has multiple discharge outlets; a motor is fixedly connected to one side of the housing; a rotating shaft is fixedly connected to the output end of the motor; the rotating shaft and the housing are through-connected and rotatably connected; a spiral blade is fixedly connected to the middle of the rotating shaft; a pair of polishing rollers are rotatably connected to the inner wall of the housing, and the polishing rollers are located at the bottom of the feed inlet; a gear is fixedly connected to the end of each polishing roller, and the gear and the housing are rotatably connected; the pair of gears are meshed; the rotating shaft and... A belt is fitted between the ends of one of the gears; a cam is rotatably connected to the bottom of the housing; a wavy groove is formed on the surface of the cam; a belt is fitted between the cam and the end of the rotating shaft; a sliding plate is slidably connected to the bottom of the housing, and the groove on the surface of the sliding plate and the cam are in sliding fit; multiple screens are formed on the surface of the sliding plate, and the screens and the discharge port are correspondingly set; the mesh size of the screens is set in an increasing manner; a collection box is provided at the bottom of the discharge port; by setting the screens, the device can screen the product after rice polishing, which facilitates the separation of rice and bran powder. At the same time, through the cooperation of the cam and the sliding plate, the screens can be in a moving state, reducing the impurities adhering to and accumulating on their surface.
[0008] Preferably, a bumper is fixed to the end of the slide plate; the bumper is located on one side of the slope; when the slide plate moves back and forth under the guidance of the slide groove on the cam surface, it can move with the bumper. The bumper will intermittently approach the outer wall of the shell and strike it, so that the rice at the slope can flow quickly to the spiral blade under the vibration and be transported by it, reducing the rice accumulation at the slope.
[0009] Preferably, a striking rod is symmetrically fixed to the top of the impact plate; a tuning fork is symmetrically fixed to one side of the shell; the striking rod and the tuning fork are arranged correspondingly; by setting the tuning fork, when the impact plate moves away from the shell, the striking rod and the tuning fork will approach and strike it, and the tuning fork will vibrate under the impact and transmit it to the slope inside the shell, which can also accelerate the flow speed of rice at the slope, and at the same time, it can make the two extreme points of the reciprocating movement of the impact plate strike and vibrate the shell, thereby improving the utilization rate of the kinetic energy when the impact plate moves.
[0010] Preferably, an elastic cloth is fixed between the screen and the adjacent collection box; a pull-out box is slidably fitted on the inner wall of the collection box; by setting the elastic cloth, when the slide moves, the material falling from the screen can enter the inside of the collection box along the elastic cloth, and then the staff can pull out the material by pulling out the pull-out box, reducing the material splashed when the slide moves and improving the collection effect of the collection box on the material.
[0011] Preferably, a box is fixedly connected to one side of the shell; the box and the shell are in communication; an exhaust pipe is connected to one side of the box; a dust removal component is provided inside the box; when the polishing roller polishes the rice, dust and other particles adhering to the surface of the rice will diffuse under the pressure. By connecting the exhaust pipe to an exhaust fan, the dust inside the shell can be absorbed under negative pressure, reducing the dust and impurities adhering to the inner wall of the shell. At the same time, the negative pressure should be less than the flow of rice to prevent rice from entering the interior of the box. In addition, the dust removal component can intercept dust in the airflow to reduce the damage of these dust and impurities to the fan.
[0012] Preferably, the impurity removal component includes a filter pad and a mounting frame; the filter pad is installed inside the mounting frame; the mounting frame and the housing are slidably fitted and connected by bolts; the filter pad removes and intercepts dust in the airflow, and the mounting frame can be disassembled by removing the bolts for quick replacement of the filter pad.
[0013] The advantages of this utility model are:
[0014] 1. The polishing device for rice production described in this utility model, by setting a screen, enables the device to screen the polished rice product, which facilitates the sorting of rice and bran powder. At the same time, through the cooperation of the cam and the sliding plate, the screen can be moved to reduce the impurities adhering to and accumulating on its surface.
[0015] 2. In the polishing device for rice production described in this utility model, the impact plate intermittently approaches and strikes the outer wall of the shell, so that the rice on the slope can flow quickly to the spiral blades under the action of vibration and be transported by them, reducing the accumulation of rice on the slope. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0017] Figure 1 This is a schematic diagram of the main body of this utility model;
[0018] Figure 2 This is a schematic diagram of the shell structure in this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the helical blade in this utility model;
[0020] Figure 4 This is a schematic diagram of the cam structure in this utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the box in this utility model.
[0022] In the diagram: 1. Shell; 12. Inlet; 13. Slope; 14. Outlet; 15. Motor; 16. Shaft; 17. Spiral blade; 18. Polishing roller; 19. Gear; 110. Cam; 111. Slide plate; 112. Screen; 113. Collection box; 2. Impact plate; 3. Striking rod; 32. Tuning fork; 4. Elastic cloth; 42. Pull-out box; 5. Box body; 52. Exhaust pipe; 6. Filter pad; 62. Mounting bracket. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0024] Specific implementation examples are given below.
[0025] Please see Figures 1 to 5As shown in the embodiment of this utility model, a polishing device for rice production includes a housing 1, the top of which is connected to a feed inlet 12; the inner wall of the housing 1 is provided with a ramp 13, which is located at the bottom of the feed inlet 12; the inner wall of the housing 1 has multiple discharge outlets 14; a motor 15 is fixedly connected to one side of the housing 1; a rotating shaft 16 is fixedly connected to the output end of the motor 15; the rotating shaft 16 and the housing 1 are connected through each other and are rotatably connected; a spiral blade 17 is fixedly connected to the middle of the rotating shaft 16; a pair of polishing rollers 18 are rotatably connected to the inner wall of the housing 1, and the polishing rollers 18 are located at the bottom of the feed inlet 12; a gear 19 is fixedly connected to the end of the polishing roller 18, and the gear 19 and the housing 1 are connected... The structure is rotatably connected; a pair of gears 19 are meshed; a belt is fitted between the shaft 16 and the end of one of the gears 19; a cam 110 is rotatably connected to the bottom of the housing 1; a wavy groove is formed on the surface of the cam 110; a belt is fitted between the cam 110 and the end of the shaft 16; a slide plate 111 is slidably connected to the bottom of the housing 1, and the slide plate 111 and the groove on the surface of the cam 110 are in sliding fit; multiple screens 112 are formed on the surface of the slide plate 111, and the screens 112 and the discharge port 14 are correspondingly arranged; the mesh size of the screens 112 is progressively larger; a collection box 113 is provided at the bottom of the discharge port 14; during operation, feed can be fed into the housing through the inlet 12. Rice is added to the feed 1, and the motor 15 is started to drive the rotating shaft 16 to rotate. One gear 19 rotates under the action of belt drive and meshes with the other gear 19. At this time, a pair of polishing rollers 18 rotate towards each other and squeeze and polish the rice falling from the feed inlet 12. The polished rice falls to the ramp 13 and flows to the spiral blade 17 under the action of gravity. The spiral blade 17 will convey the rice in a spiral. During the conveying process, the rice will pass through various discharge ports 14 and the bottom screen 112. These screens 112 will screen the rice, so that the polished bran fragments, over-compressed and broken rice, and whole rice will be discharged from the discharge port 14 to the top of the screen 112 and fall into the ramp 13 in sequence. When the rotating shaft 16 rotates, it can also drive the cam 110 to rotate via the belt. The slide plate 111 will reciprocate under the guidance of the groove on the surface of the cam 110, so that the screen 112 can be in a moving state to screen the rice, thereby improving the screening effect of the screen 112 on the rice. In addition, because the size of the screen 112 is larger than the size of the discharge port 14, the screen 112 can always screen the material at the discharge port 14 when it moves. By setting the screen 112, the device can screen the product after rice polishing, which facilitates the separation of rice and bran powder. At the same time, through the cooperation of the cam 110 and the slide plate 111, the screen 112 can be in a moving state, reducing the impurities adhering to and accumulating on its surface.
[0026] Please see Figure 4As shown, a bumper 2 is fixed to the end of the slide plate 111; the bumper 2 is located on one side of the ramp 13; when the slide plate 111 moves back and forth under the guidance of the slide groove on the surface of the cam 110, it can move with the bumper 2. The bumper 2 will intermittently approach the outer wall of the shell 1 and strike it, so that the rice at the ramp 13 can flow quickly to the spiral blade 17 under the action of vibration and be transported by it, reducing the rice accumulation at the ramp 13.
[0027] Please see Figure 4 As shown, striking rods 3 are symmetrically fixed to the top of the impact plate 2; tuning forks 32 are symmetrically fixed to one side of the housing 1; the striking rods 3 and tuning forks 32 are arranged correspondingly; by setting the tuning forks 32, when the impact plate 2 moves away from the housing 1, the striking rods 3 and tuning forks 32 will approach and strike it, and the tuning forks 32 will vibrate under the impact and transmit the vibration to the ramp 13 inside the housing 1, which can also accelerate the flow speed of rice at the ramp 13, and at the same time, it can make the two extreme points of the reciprocating movement of the impact plate 2 strike and vibrate the housing 1, thereby improving the utilization rate of the kinetic energy when the impact plate 2 moves.
[0028] Please see Figure 3 As shown, an elastic cloth 4 is fixedly connected between the screen 112 and the adjacent collection box 113; a pull-out box 42 is slidably fitted on the inner wall of the collection box 113; by setting the elastic cloth 4, when the slide plate 111 moves, the material falling from the screen 112 can enter the collection box 113 along the elastic cloth 4, and then the staff can pull out the material by pulling out the pull-out box 42, reducing the material splashed when the slide plate 111 slides and improving the material collection effect of the collection box 113.
[0029] Please see Figures 1 to 5 As shown, a box 5 is fixedly connected to one side of the housing 1; the box 5 and the housing 1 are connected; an exhaust pipe 52 is connected to one side of the box 5; a dust removal component is provided inside the box 5; when the polishing roller 18 polishes the rice, the dust and other dust adhering to the surface of the rice will diffuse under the pressure. By connecting the exhaust pipe 52 to the exhaust fan, the dust inside the housing 1 can be absorbed under the negative pressure inside the box 5, reducing the dust and impurities adhering to the inner wall of the housing 1. At the same time, the negative pressure should be less than the flow of rice to prevent rice from entering the interior of the box 5. In addition, the dust removal component can intercept the dust in the airflow to reduce the damage of these dust and impurities to the fan.
[0030] Please see Figure 5 As shown, the impurity removal component includes a filter pad 6 and a mounting frame 62; the filter pad 6 is installed inside the mounting frame 62; the mounting frame 62 and the housing 5 are slidably fitted and connected by bolts; the filter pad 6 removes and intercepts dust in the airflow, and the mounting frame 62 can be disassembled by removing the bolts to quickly replace the filter pad 6.
[0031] Working principle: Rice is added into the shell 1 through the feed inlet 12. The motor 15 is started to drive the rotating shaft 16 to rotate. One gear 19 rotates under the action of belt drive and meshes with the other gear 19. At this time, a pair of polishing rollers 18 rotate towards each other and squeeze and polish the rice falling from the feed inlet 12. The polished rice falls to the ramp 13 and flows to the spiral blades 17 under the action of gravity. The spiral blades 17 will convey the rice in a spiral. During the conveying process, the rice will pass through various discharge ports 14 and the screens 112 at the bottom. These screens 112 will screen the rice, so that the polished bran fragments, excessively squeezed and broken rice, and whole rice will be discharged from the discharge ports 14 in sequence. The rice is fed to the top of the screen 112 and falls into the slope 13. When the rotating shaft 16 rotates, it also drives the cam 110 to rotate via a belt. The sliding plate 111 reciprocates under the guidance of the grooves on the surface of the cam 110, allowing the screen 112 to be in a moving state to screen the rice, thus improving the screening effect of the screen 112. Furthermore, because the size of the screen 112 is larger than the size of the discharge port 14, the screen 112 can always screen the material at the discharge port 14 while moving. When the sliding plate 111 reciprocates under the guidance of the grooves on the surface of the cam 110, it can move the impact plate 2 along with it. The impact plate 2 intermittently approaches and strikes the outer wall of the housing 1, allowing the rice at the slope 13 to be screened. Under vibration, the material flows rapidly to the spiral blade 17 and is transported there. By setting a tuning fork 32, when the impact plate 2 moves away from the housing 1, the striking rod 3 approaches and strikes the tuning fork 32. The tuning fork 32 vibrates under the impact and transmits the vibration to the ramp 13 inside the housing 1, which also accelerates the flow speed of the rice at the ramp 13. Simultaneously, it allows both extreme points of the reciprocating movement of the impact plate 2 to strike and vibrate the housing 1, improving the utilization rate of the kinetic energy during the movement of the impact plate 2. By setting an elastic cloth 4, when the slide plate 111 moves, the material falling from the screen 112 can enter the collection box 113 along the elastic cloth 4. Then, the staff can pull out the collection box 42 to remove the material, reducing the slippage of the slide plate 111. The material splashed during movement improves the material collection effect of the collection box 113; when the polishing roller 18 polishes the rice, the dust and other dust adhering to the surface of the rice will spread under the pressure. By connecting the exhaust pipe 52 to the exhaust fan, the dust inside the housing 1 can be absorbed under the negative pressure inside the housing 5, reducing the dust and impurities adhering to the inner wall of the housing 1. At the same time, the negative pressure should be less than the flow of rice to prevent rice from entering the interior of the housing 5. In addition, the impurity removal component can intercept the dust in the airflow to reduce the damage of these dust impurities to the fan; the filter pad 6 will remove and intercept the dust in the airflow, and the mounting bracket 62 can be disassembled by removing the bolts to quickly replace the filter pad 6.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A polishing device for rice production, comprising a housing (1), characterized in that: The top of the housing (1) is connected to a feed inlet (12); the inner wall of the housing (1) is provided with a ramp (13), and the ramp (13) is located at the bottom of the feed inlet (12); the inner wall of the housing (1) is provided with multiple discharge outlets (14); a motor (15) is fixedly connected to one side of the housing (1); a rotating shaft (16) is fixedly connected to the output end of the motor (15); the rotating shaft (16) and the housing (1) are connected through and rotatably; a spiral blade (17) is fixedly connected to the middle of the rotating shaft (16); a pair of polishing rollers (18) are rotatably connected to the inner wall of the housing (1), and the polishing rollers (18) are located at the bottom of the feed inlet (12); a gear (19) is fixedly connected to the end of the polishing rollers (18), and the gear (19) and the housing (1) are rotatably connected. Connect; a pair of gears (19) are meshed; a belt is fitted between the shaft (16) and the end of one of the gears (19); a cam (110) is rotatably connected to the bottom of the housing (1); a wave-shaped groove is opened on the surface of the cam (110); a belt is fitted between the end of the cam (110) and the shaft (16); a slide plate (111) is slidably connected to the bottom of the housing (1), and the groove on the surface of the slide plate (111) and the cam (110) are in sliding fit; multiple screens (112) are opened on the surface of the slide plate (111), and the screens (112) and the discharge port (14) are correspondingly set; the mesh size on the surface of the screens (112) is set in an increasing manner; a collection box (113) is provided at the bottom of the discharge port (14).
2. The polishing device for rice production according to claim 1, characterized in that: The end of the slide plate (111) is fixed with a bumper (2); the bumper (2) is located on one side of the ramp (13).
3. The polishing device for rice production according to claim 2, characterized in that: The top of the impact plate (2) is symmetrically fixed with a striking rod (3); a tuning fork (32) is symmetrically fixed to one side of the housing (1); the striking rod (3) and the tuning fork (32) are arranged correspondingly.
4. The polishing device for rice production according to claim 3, characterized in that: An elastic cloth (4) is fixed between the screen (112) and the adjacent collection box (113); a pull-out box (42) is slidably fitted on the inner wall of the collection box (113).
5. A polishing device for rice production according to claim 4, characterized in that: A box (5) is fixedly connected to one side of the housing (1); the box (5) and the housing (1) are connected; an exhaust pipe (52) is connected to one side of the box (5); a cleaning component is provided inside the box (5).
6. A polishing device for rice production according to claim 5, characterized in that: The impurity removal assembly includes a filter pad (6) and a mounting bracket (62); the filter pad (6) is installed inside the mounting bracket (62); the mounting bracket (62) and the housing (5) are in a sliding fit and are connected by bolts.