A polishing machine for rice processing

The polishing machine, designed with alternating tilting and striking components of the cylinder, solves the problems of uneven rice polishing and dust adhesion, achieving a highly efficient and clean polishing process, and improving rice processing efficiency and equipment lifespan.

CN224524830UActive Publication Date: 2026-07-21JIDONG COUNTY JINHUI RICE IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIDONG COUNTY JINHUI RICE IND CO LTD
Filing Date
2025-06-03
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing rice polishing machines suffer from uneven polishing, difficulty in discharging, and frequent equipment maintenance due to dust adhesion, which affects processing efficiency and costs.

Method used

The design incorporates alternating left and right tilting motion of the cylinder and a striking component. The tilting motion of the cylinder is controlled by a hydraulic rod to ensure that the rice is polished evenly and discharged easily. At the same time, the striking component breaks up dust adhesion and keeps the equipment clean.

Benefits of technology

It improves polishing quality and efficiency, reduces the need for manual cleaning, extends equipment life, and lowers production costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224524830U_ABST
    Figure CN224524830U_ABST
Patent Text Reader

Abstract

The utility model discloses a polishing machine for rice processing, including the bottom plate, the upper end fixed connection of bottom plate has two support plates, two the adjacent side of support plate is rotatably connected with the pivot, the fixed connection of pivot has left fixed plate, the upper end rotatable connection of bottom plate has two hydraulic rod, two the telescopic end rotatable connection of hydraulic rod has right fixed plate, left fixed plate and right fixed plate's adjacent side all rotatably connected with the rotation bar, two the adjacent side rotatable connection of rotation bar has the cylinder, install first motor on right fixed plate, first motor's output shaft end and the rotation bar fixed connection located right side. This polishing machine makes rice move left and right in the cylinder through cylinder left and right alternate inclination, promotes the polishing effect to rice, and facilitates the discharge of subsequent rice, and through the setting of knocking assembly, avoids the situation that rice and dust adhere on the cylinder.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to a polishing machine for rice processing. Background Technology

[0002] Its function is not only related to the removal of impurities on the surface of rice, but also directly affects the quality indicators such as the smoothness and color of the rice's appearance, thus determining the popularity and competitiveness of rice products in the market.

[0003] In the current field of rice polishing machine technology, there are many problems that urgently need to be solved. Traditional polishing machines mostly use a relatively simple rotation method to move the rice within the polishing chamber. This makes it easy for the rice to accumulate in certain areas and for contact with the polishing parts to be uneven during the polishing process. Consequently, the polishing effect is inconsistent, and some rice is not fully polished, failing to effectively remove surface impurities and achieve the desired glossy appearance. Moreover, this fixed motion mode is not conducive to the smooth discharge of rice after processing. Rice often remains in the polishing chamber, requiring manual cleaning, which undoubtedly increases labor costs and reduces overall processing efficiency.

[0004] Furthermore, during the polishing process, due to friction between rice and dust particles, as well as static electricity, rice and dust easily adhere to the inner wall of the polishing machine. This adhesion not only makes it difficult for the polishing medium to fully penetrate the rice surface, affecting polishing quality, but also, with the continuous accumulation of deposits, interferes with the normal operation of the polishing machine, increasing the difficulty and frequency of cleaning and maintenance, affecting the equipment's lifespan, and indirectly increasing the cost of rice processing.

[0005] Therefore, it is necessary to design a polishing machine for rice processing to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a polishing machine for rice processing. This polishing machine uses the alternating tilting of the cylinder to move the rice left and right inside the cylinder, thereby improving the polishing effect of the rice and facilitating the subsequent discharge of rice. Furthermore, the design of the striking component prevents rice and dust from adhering to the cylinder.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A polishing machine for rice processing includes a base plate. Two support plates are fixedly connected to the upper end of the base plate. A rotating shaft is rotatably connected to the adjacent sides of the two support plates. A left fixed plate is fixedly connected to the rotating shaft. Two hydraulic rods are rotatably connected to the upper end of the base plate. A right fixed plate is rotatably connected to the telescopic ends of the two hydraulic rods. Rotating rods are rotatably connected to the adjacent sides of the left and right fixed plates. A cylinder is fixedly connected to the adjacent sides of the two rotating rods. A first motor is mounted on the right fixed plate. The end of the output shaft of the first motor is fixedly connected to the rotating rod located on the right side.

[0009] Preferably, the upper end of the cylinder is provided with a rectangular opening, and a sealing plug is provided inside the rectangular opening. A handle is fixedly connected to the upper end of the sealing plug.

[0010] Preferably, the cylinder is provided with a striking assembly, which includes a striking box fixedly connected to the upper end of the cylinder, a movable plate slidably connected inside the striking box, a plurality of striking rods fixedly connected to the lower end of the movable plate, a short rod rotatably connected to the front inner wall of the striking box, an incomplete gear fixedly connected to the short rod, a second motor installed on the front side of the striking box, the end of the output shaft of the second motor fixedly connected to the short rod, and a rack fixedly connected to the upper end of the movable plate.

[0011] Preferably, a rectangular plate is fixedly connected to the inner left side of the striking box, and the movable plate is elastically connected to the adjacent side of the rectangular plate by a spring.

[0012] Preferably, the lower ends of the plurality of striking rods are all fixedly connected to a rubber protective sleeve.

[0013] Preferably, the cylinder has a mesh structure.

[0014] Compared with existing technologies, the advantages of this device are:

[0015] 1. Compared with existing technologies, the hydraulic rod's regular stretching and contraction causes the cylinder to tilt alternately left and right. The rice moves left and right within the cylinder with this tilting motion, resulting in a more even distribution of the rice. This ensures that the rice fully contacts the polishing medium at all angles, receiving comprehensive polishing treatment and effectively improving the overall polishing quality. Furthermore, after processing, the hydraulic rod controls the cylinder's tilting motion, allowing the rice to be smoothly discharged from the cylinder under its own weight, eliminating the need for complex manual intervention and significantly reducing the workload in the discharge stage, further improving the efficiency of the entire rice processing process.

[0016] 2. Compared with existing technologies, during the polishing process, the striking component uses a second motor to drive an incomplete gear to rotate. This incomplete gear engages with a rack on a moving plate, driving the moving plate to reciprocate up and down within the striking box. This causes multiple striking rods, each with a rubber protective sleeve at the lower end, to rhythmically strike the cylinder. The resulting vibrations effectively break up any adhering rice and dust particles. Simultaneously, the cylinder's left-right tilting motion helps to detach adhering substances more easily under the combined effects of vibration and gravity, ensuring the inner wall of the cylinder remains relatively clean. This guarantees a smooth polishing process, reduces downtime for cleaning and maintenance, extends the equipment's lifespan, and reduces rice processing costs and improves production efficiency from multiple perspectives. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a polishing machine for rice processing proposed in this utility model;

[0018] Figure 2 for Figure 1 A structural diagram from another perspective;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Base plate, 2. Hydraulic rod, 3. Right fixed plate, 4. First motor, 5. Support plate, 6. Left fixed plate, 7. Rotating shaft, 8. Cylinder, 9. Rectangular opening, 10. Sealing plug, 11. Striking box, 12. Second motor, 13. Rotating rod, 14. Incomplete gear, 15. Rack, 16. Moving plate, 17. Striking rod, 18. Spring, 19. Rectangular plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-3 A polishing machine for rice processing includes a base plate 1. Two support plates 5 are fixedly connected to the upper end of the base plate 1. A rotating shaft 7 is rotatably connected to the adjacent sides of the two support plates 5. A left fixed plate 6 is fixedly connected to the rotating shaft 7. Two hydraulic rods 2 are rotatably connected to the upper end of the base plate 1. A right fixed plate 3 is rotatably connected to the telescopic ends of the two hydraulic rods 2. Rotating rods 13 are rotatably connected to the adjacent sides of the left fixed plate 6 and the right fixed plate 3. A cylinder 8 with a mesh structure is fixedly connected to the adjacent sides of the two rotating rods 13, so that the generated powder and unqualified rice can be quickly discharged and separated from qualified rice. A first motor 4 is installed on the right fixed plate 3. The output shaft end of the first motor 4 is fixedly connected to the rotating rod 13 located on the right side.

[0023] The upper end of the cylinder 8 is provided with a rectangular opening 9, and a sealing plug 10 is provided inside the rectangular opening 9. A pull handle is fixedly connected to the upper end of the sealing plug 10 to facilitate the removal of the sealing plug 10 from the rectangular opening 9. The sealing plug 10 is made of rubber.

[0024] The cylinder 8 is equipped with a striking assembly, which includes a striking box 11 fixedly connected to the upper end of the cylinder 8. A movable plate 16 is slidably connected inside the striking box 11. Multiple striking rods 17 are fixedly connected to the lower end of the movable plate 16. A short rod is rotatably connected to the front inner wall of the striking box 11. An incomplete gear 14 is fixedly connected to the short rod. A second motor 12 is installed on the front side of the striking box 11. The output shaft of the second motor 12 is fixedly connected to the short rod. A rack 15 is fixedly connected to the upper end of the movable plate 16. A rectangular plate 19 is fixedly connected to the left inner wall of the striking box 11. The adjacent sides of the movable plate 16 and the rectangular plate 19 are elastically connected by springs 18. The lower ends of the multiple striking rods 17 are fixedly connected to rubber protective sleeves, thereby reducing noise generation and preventing deformation of the cylinder 8.

[0025] The functional principle of this utility model can be explained by the following operation: Hold the handle at the upper end of the sealing plug 10 and pull the sealing plug 10 out from the rectangular opening 9 at the upper end of the cylinder 8. At this time, rice to be polished can be filled into the cylinder 8 through the rectangular opening 9. After filling, the sealing plug 10 is put back into the rectangular opening 9 to ensure that the cylinder 8 is in a relatively sealed state during the processing, preventing external impurities from entering and affecting the polishing quality and preventing rice from overflowing during the processing.

[0026] When the first motor 4 is started, its output shaft begins to rotate. Since the end of its output shaft is fixedly connected to the rotating rod 13 on the right side, the rotating rod 13 rotates under the drive of the motor, causing the cylinder 8, which is fixedly connected to it, to begin circular motion around the axis of the rotating rod 13. Simultaneously, because both rotating rods 13 are fixedly connected to the cylinder 8, the cylinder 8 rotates smoothly with the support of the two rotating rods 13. The rice placed inside the cylinder 8 tumbles and rolls inside as the cylinder 8 rotates, making full contact with the inner wall of the cylinder 8 and any added polishing media (such as polishing agents). During this process, impurities such as bran and broken rice adhering to the surface of the rice gradually fall off under continuous friction, thus achieving a preliminary polishing effect on the rice and gradually making its appearance smoother.

[0027] When hydraulic rod 2 extends or retracts, it pushes or pulls the right fixed plate 3. Since the right fixed plate 3 and the left fixed plate 6 are connected to the cylinder 8 through rotating rod 13, the change in the position of the right fixed plate 3 causes the cylinder 8 to change its tilt angle around the connection point of rotating rod 13. For example, when the right hydraulic rod 2 retracts and the left hydraulic rod 2 extends, the cylinder 8 will tilt to the left; conversely, when the right hydraulic rod 2 extends and the left hydraulic rod 2 retracts, the cylinder 8 will tilt to the right. Through this regular alternating left and right tilting, the rice inside the cylinder 8 no longer simply rotates and rolls, but moves left and right with the tilt direction, changing the distribution of the rice inside the cylinder 8. This allows the rice, which might have accumulated in a localized area, to be more evenly dispersed, ensuring that each grain of rice can fully contact the inner wall of the cylinder 8 and the polishing medium at different tilt stages, further improving the uniformity and comprehensiveness of polishing and enhancing the polishing effect.

[0028] The second motor 12 is started, and its output shaft drives the short rod to rotate. The incomplete gear 14 fixed on the short rod also rotates synchronously. The incomplete gear 14 meshes with the rack 15 fixed to the upper end of the moving plate 16. When the incomplete gear 14 rotates, it intermittently contacts the rack 15 and drives the rack 15 to move up and down. This causes the entire moving plate 16 to slide up and down along its inner wall within the striking box 11. The striking rod 17 moves up and down synchronously, regularly striking the upper outer wall of the cylinder 8. Under the vibration generated by the striking, on the one hand, even if rice and dust tend to adhere to the inner wall of the cylinder 8 due to friction, static electricity, etc. during the polishing process, this vibration can promptly break their adhesion, preventing rice and dust from accumulating on the cylinder 8 for a long time and affecting the polishing effect. On the other hand, the vibration can also help the rice to turn over better inside the cylinder 8, making its contact with the polishing medium more sufficient. This, combined with the tilting movement of the cylinder 8, ensures the high efficiency and high quality of the polishing process.

[0029] After the polishing process is completed, by controlling the extension and retraction of the hydraulic rod 2, the cylinder 8 is continuously tilted to the left at a certain angle. At this time, the polished rice inside the cylinder 8 will slowly slide out along the inclined inner wall of the cylinder 8 under its own gravity and be smoothly discharged from the rectangular opening 9 (after opening the sealing plug 10), realizing the function of convenient discharge, avoiding the trouble of rice remaining in the cylinder 8 and needing to be cleaned manually, and improving the efficiency of the entire processing process.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A polishing machine for rice processing, comprising a base plate (1), characterized in that: Two support plates (5) are fixedly connected to the upper end of the base plate (1). A rotating shaft (7) is rotatably connected to the adjacent sides of the two support plates (5). A left fixed plate (6) is fixedly connected to the rotating shaft (7). Two hydraulic rods (2) are rotatably connected to the upper end of the base plate (1). A right fixed plate (3) is rotatably connected to the telescopic ends of the two hydraulic rods (2). Rotating rods (13) are rotatably connected to the adjacent sides of the left fixed plate (6) and the right fixed plate (3). A cylinder (8) is fixedly connected to the adjacent sides of the two rotating rods (13). A first motor (4) is installed on the right fixed plate (3). The end of the output shaft of the first motor (4) is fixedly connected to the rotating rod (13) located on the right side.

2. The polishing machine for rice processing according to claim 1, characterized in that: The upper end of the cylinder (8) is provided with a rectangular opening (9), and a sealing plug (10) is provided inside the rectangular opening (9). A handle is fixedly connected to the upper end of the sealing plug (10).

3. The polishing machine for rice processing according to claim 1, characterized in that: The cylinder (8) is provided with a striking assembly, which includes a striking box (11) fixedly connected to the upper end of the cylinder (8). A movable plate (16) is slidably connected inside the striking box (11). A plurality of striking rods (17) are fixedly connected to the lower end of the movable plate (16). A short rod is rotatably connected to the inner front wall of the striking box (11). An incomplete gear (14) is fixedly connected to the short rod. A second motor (12) is installed on the front side of the striking box (11). The output shaft end of the second motor (12) is fixedly connected to the short rod. A rack (15) is fixedly connected to the upper end of the movable plate (16).

4. A polishing machine for rice processing according to claim 3, characterized in that: A rectangular plate (19) is fixedly connected to the inner left side of the striking box (11), and the adjacent sides of the movable plate (16) and the rectangular plate (19) are elastically connected by a spring (18).

5. A polishing machine for rice processing according to claim 3, characterized in that: The lower ends of each of the multiple striking rods (17) are fixedly connected with rubber protective sleeves.

6. A polishing machine for rice processing according to claim 1, characterized in that: The cylinder (8) has a mesh structure.