Rice polishing machine

By rotating and reciprocating the polishing roller, combined with the guiding mechanism and air pump for impurity removal, the problem of uneven polishing is solved, achieving comprehensive polishing and impurity removal of rice and improving the quality of the finished product.

CN224114030UActive Publication Date: 2026-04-14HUBEI WANGFA GRAIN & OIL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI WANGFA GRAIN & OIL CO LTD
Filing Date
2025-04-18
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In existing rice polishing machines, some rice cannot come into contact with the polishing roller when it rotates, resulting in uneven polishing and affecting the quality of the finished product.

Method used

By rotating and reciprocating the polishing roller, combined with the guiding mechanism and air pump for impurity removal, the rice is fully polished and impurities are removed.

Benefits of technology

This process achieves comprehensive polishing and effective impurity removal of rice, improving the quality of the finished product.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of polishing machines, and discloses a rice polishing machine which comprises a shell, a control box is fixedly installed on the top of the shell, a driving motor is fixedly installed on the top of the control box, a feeding pipe is arranged on one side of the shell, a polishing roller is arranged in the shell, and a spiral guide plate is installed on the outer side of the polishing roller. A rotating seat is rotatably mounted at the top of the shell, a rectangular hole is formed in the rotating seat, a rectangular rod is slidably mounted in the rectangular hole, the bottom end of the rectangular rod is fixedly mounted on the polishing roller, a lifting plate is slidably mounted in the control box, a rotating mechanism is arranged between the rectangular rod and the lifting plate, and the rotating mechanism comprises two baffles, a rotating hole and a rotating shaft; the rotating hole is formed in the lifting plate, and the rotating shaft is rotationally installed in the rotating hole. The rice polishing machine has the following advantages and effects that the purpose of comprehensively and fully polishing rice can be achieved through rotation and up-and-down reciprocating movement of the polishing roller.
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Description

Technical Field

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

[0002] During rice processing, polishing is necessary to remove residual rice bran and increase surface gloss. Therefore, producers typically use specialized rice polishing machines. A patent document with authorization announcement number CN220940864U discloses a rice polishing machine, comprising a machine body with a collection frame fixedly installed on its left side and a feeding hopper fixedly installed on its top. A polishing structure is located on the inner side of the machine body, and rice is placed inside the feeding hopper. A screening component is mounted on the machine body. An impurity removal component is mounted on both the machine body and the collection frame. The screening component includes a rotating shaft, a guide plate, a moving plate, a screening plate, a chute, a clamping block, a baffle, a fixing plate, a spring, a stop block, and a discharge pipe.

[0003] In practical use, it has been found that most rice polishing machines polish rice by pressing it with polishing rollers. However, in this method, the polishing rollers rotate around a fixed axis, and some rice cannot come into contact with the polishing rollers, resulting in uneven polishing and affecting the quality of the finished product. Therefore, we have proposed a rice polishing machine to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a rice polishing machine that can achieve the purpose of thoroughly polishing rice by rotating and reciprocating the polishing roller.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a rice polishing machine, comprising a housing, a control box fixedly installed on the top of the housing, a drive motor fixedly installed on the top of the control box, a feed pipe provided on one side of the housing, a polishing roller provided inside the housing, a spiral guide plate installed on the outer side of the polishing roller, a rotating seat rotatably installed on the top of the housing, a rectangular hole provided on the rotating seat, a rectangular rod slidably installed in the rectangular hole, the bottom end of the rectangular rod fixedly installed on the polishing roller, a lifting plate slidably installed inside the control box, and a rotating mechanism provided between the rectangular rod and the lifting plate.

[0006] By adopting the above technical solution, the rice can be thoroughly polished by rotating and reciprocating the polishing roller.

[0007] A further feature of this invention is that the rotating mechanism includes two baffles, a rotating hole, and a rotating shaft. The rotating hole is opened on the lifting plate, and the rotating shaft is rotatably installed in the rotating hole. Baffles are fixedly installed at the top and bottom of the rotating shaft, and the rectangular rod is fixedly connected to the corresponding baffle.

[0008] By adopting the above technical solution and setting a rotating mechanism, the rectangular rod can be rotatably connected to the lifting plate.

[0009] A further feature of this invention is that a drive motor is fixedly installed on the top of the control box, a reciprocating lead screw is fixedly installed on the output shaft of the drive motor, and a lifting plate is threaded onto the reciprocating lead screw. A transmission mechanism is provided between the reciprocating lead screw and the rotating seat. The transmission mechanism includes a drive gear and a driven gear. The drive gear is fixedly installed on the reciprocating lead screw, and the driven gear is fixedly installed on the rotating seat. The drive gear and the driven gear mesh with each other.

[0010] By adopting the above technical solution, and by setting a drive gear and a driven gear, the rotation of the reciprocating screw can drive the rotating seat to rotate.

[0011] A further feature of this invention is that: limit grooves are provided on both inner walls of the control box; limit seats are fixedly installed on both sides of the lifting plate, and the limit seats are slidably connected to the corresponding limit grooves; a rotating hole is provided on the top inner wall of the housing; an annular groove is provided on the inner wall of the rotating hole; an annular seat is fixedly installed on the outer side of the rotating seat, and the annular seat is rotatably connected to the annular groove.

[0012] By adopting the above technical solution and setting a limiting seat and a limiting groove, the lifting plate can be guided, thereby enabling the lifting plate to move stably.

[0013] A further feature of this invention is that guide seats are fixedly installed on the inner walls of the front and rear sides of the housing, and guide rods are fixedly installed on the top of the guide seats, with the guide rods passing through the polishing roller.

[0014] By adopting the above technical solution and by setting a guide rod, the polishing roller can be guided, so that the polishing roller can rotate stably.

[0015] A further feature of this invention is that a material guide groove is provided on the bottom inner wall of the housing, a material discharge pipe is installed on the bottom inner wall of the material guide groove, an air pump is fixedly installed on one side of the material discharge pipe, the air outlet of the air pump extends into the material discharge pipe, and a waste discharge pipe connected to the material discharge pipe is installed on the other side of the material discharge pipe, and a filter screen is installed inside the waste discharge pipe.

[0016] By adopting the above technical solution, an air pump can blow air into the feeding pipe, causing dust or chaff to be blown into the discharge pipe, thereby achieving the purpose of removing impurities from the rice.

[0017] The beneficial effects of this utility model are:

[0018] (1) When rice is added into the shell through the feed pipe, the drive motor is started. The drive motor can drive the drive gear to rotate through the reciprocating screw. The drive gear can drive the rotating seat and the rectangular rod to rotate. The rectangular rod can drive the polishing roller to rotate. The rotation of the polishing roller causes the polishing to rub between the inner wall of the shell and the outer side of the polishing roller, thereby achieving the purpose of polishing the rice.

[0019] (2) When the reciprocating screw rotates, the reciprocating screw can drive the lifting plate to move up and down reciprocally. The lifting plate drives the rectangular rod to move up and down reciprocally through the rotating shaft. The rectangular rod can drive the polishing roller to move up and down reciprocally, which can achieve the purpose of polishing rice in all directions.

[0020] (3) When the polished rice is guided by the feed trough, the rice is discharged through the feed pipe. The air pump can blow air into the feed pipe, so that dust or bran is blown into the discharge pipe, thereby removing impurities from the rice. Attached Figure Description

[0021] 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.

[0022] Figure 1 This is a three-dimensional structural diagram of a rice polishing machine according to the present invention;

[0023] Figure 2 This is a cross-sectional three-dimensional structural diagram of a rice polishing machine according to the present invention;

[0024] Figure 3 This is a schematic diagram of the structure A of a rice polishing machine according to this utility model;

[0025] Figure 4 This is a schematic diagram of structure B of a rice polishing machine according to this utility model.

[0026] In the diagram, 1. Housing; 2. Control box; 3. Drive motor; 4. Feed pipe; 5. Polishing roller; 6. Spiral guide plate; 7. Rotating seat; 8. Rectangular hole; 9. Rectangular rod; 10. Rotating mechanism; 11. Lifting plate; 12. Reciprocating screw; 13. Drive gear; 14. Driven gear; 15. Guide seat; 16. Guide rod; 17. Feed trough; 18. Feed pipe; 19. Air pump; 20. Waste discharge pipe; 21. Filter screen. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] When a component is described as being "set on" another component, it can be directly on the other component or it can be in an intervening component. "Set on" indicates a mode of existence, which can be a connection, installation, fixed connection, active connection, etc. When a component is described as being "connected" to another component, it can be directly connected to the other component or it may be in an intervening component.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] See Figures 1-4 This utility model provides a rice polishing machine, including a housing 1, a control box 2 fixedly installed on the top of the housing 1, a drive motor 3 fixedly installed on the top of the control box 2, a feed pipe 4 provided on one side of the housing 1, a polishing roller 5 provided inside the housing 1, a spiral guide plate 6 installed on the outer side of the polishing roller 5, a rotating seat 7 rotatably installed on the top of the housing 1, a rectangular hole 8 opened on the rotating seat 7, a rectangular rod 9 slidably installed in the rectangular hole 8, the bottom end of the rectangular rod 9 fixedly installed on the polishing roller 5, a lifting plate 11 slidably installed inside the control box 2, a rotating mechanism 10 provided between the rectangular rod 9 and the lifting plate 11, the rotating mechanism 10 including two baffles, a rotating hole and a rotating shaft, the rotating hole is opened on the lifting plate 11, the rotating shaft is rotatably installed in the rotating hole, baffles are fixedly installed at the top and bottom of the rotating shaft, and the rectangular rod 9 is fixedly connected to the corresponding baffle.

[0031] Specifically, a drive motor 3 is fixedly installed on the top of the control box 2, and a reciprocating lead screw 12 is fixedly installed on the output shaft of the drive motor 3. The lifting plate 11 is threaded onto the reciprocating lead screw 12. A transmission mechanism is provided between the reciprocating lead screw 12 and the rotating seat 7. The transmission mechanism includes a drive gear 13 and a driven gear 14. The drive gear 13 is fixedly installed on the reciprocating lead screw 12, and the driven gear 14 is fixedly installed on the rotating seat 7. The drive gear 13 and the driven gear 14 mesh with each other.

[0032] Specifically, limit grooves are provided on both inner walls of the control box 2, and limit seats are fixedly installed on both sides of the lifting plate 11. The limit seats are slidably connected to the corresponding limit grooves. A rotating hole is provided on the top inner wall of the housing 1, and an annular groove is provided on the inner wall of the rotating hole. An annular seat is fixedly installed on the outer side of the rotating seat 7, and the annular seat is rotatably connected to the annular groove.

[0033] Specifically, guide seats 15 are fixedly installed on the inner walls of the front and rear sides of the housing 1, and guide rods 16 are fixedly installed on the top of the guide seats 15, with the guide rods 16 passing through the polishing roller 5.

[0034] Specifically, a material guide groove 17 is provided on the bottom inner wall of the housing 1, and a discharge pipe 18 is installed on the bottom inner wall of the material guide groove 17. An air pump 19 is fixedly installed on one side of the discharge pipe 18, and the air outlet of the air pump 19 extends into the discharge pipe 18. A waste discharge pipe 20 connected to the discharge pipe 18 is installed on the other side of the discharge pipe 18, and a filter screen 21 is installed inside the waste discharge pipe 20.

[0035] Working principle: When rice is added into the housing 1 through the feed pipe 4, the drive motor 3 is started. The drive motor 3 drives the drive gear 13 to rotate via the reciprocating screw 12. The drive gear 13 rotates via the driven gear 14, which in turn drives the rotating seat 7 and the rectangular rod 9 to rotate. The rectangular rod 9 then drives the polishing roller 5 to rotate. The rotation of the polishing roller 5 causes friction between the inner wall of the housing 1 and the outer side of the polishing roller 5, thereby achieving the purpose of polishing the rice. When the reciprocating screw 12 rotates... At the same time, the reciprocating screw 12 can drive the lifting plate 11 to move up and down reciprocally. The lifting plate 11 drives the rectangular rod 9 to move up and down reciprocally through the rotating shaft. The rectangular rod 9 can drive the polishing roller 5 to move up and down reciprocally, which can achieve the purpose of polishing the rice in all directions. After polishing, the rice is guided by the guide groove 17, so that the rice is discharged through the discharge pipe 18. The air pump 19 can blow air into the discharge pipe 18, so that dust or bran is blown into the impurity discharge pipe 20, thereby achieving the purpose of removing impurities from the rice.

[0036] The rice polishing machine provided by this utility model has been described in detail above. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A rice polisher characterized by comprising: Includes a housing (1), a control box (2) is fixedly installed on the top of the housing (1), a drive motor (3) is fixedly installed on the top of the control box (2), a feed pipe (4) is provided on one side of the housing (1), a polishing roller (5) is provided inside the housing (1), and a spiral guide plate (6) is installed on the outside of the polishing roller (5). A rotating seat (7) is rotatably mounted on the top of the housing (1). A rectangular hole (8) is provided on the rotating seat (7). A rectangular rod (9) is slidably mounted in the rectangular hole (8). The bottom end of the rectangular rod (9) is fixedly mounted on the polishing roller (5). A lifting plate (11) is slidably mounted in the control box (2). A rotating mechanism (10) is provided between the rectangular rod (9) and the lifting plate (11).

2. The rice polisher according to claim 1, wherein: The rotating mechanism (10) includes two baffles, a rotating hole and a rotating shaft. The rotating hole is opened on the lifting plate (11), and the rotating shaft is rotatably installed in the rotating hole. Baffles are fixedly installed at the top and bottom of the rotating shaft, and the rectangular rod (9) is fixedly connected to the corresponding baffle.

3. The rice polishing machine according to claim 1, characterized in that: The top of the control box (2) is fixedly installed with a drive motor (3), and a reciprocating screw (12) is fixedly installed on the output shaft of the drive motor (3). The lifting plate (11) is threaded onto the reciprocating screw (12), and a transmission mechanism is provided between the reciprocating screw (12) and the rotating seat (7).

4. A rice polishing machine according to claim 3, characterized in that: The transmission mechanism includes a drive gear (13) and a driven gear (14). The drive gear (13) is fixedly mounted on the reciprocating lead screw (12), and the driven gear (14) is fixedly mounted on the rotating seat (7). The drive gear (13) meshes with the driven gear (14).

5. A rice polishing machine according to claim 1, characterized in that: Limiting grooves are provided on both sides of the inner wall of the control box (2), and limiting seats are fixedly installed on both sides of the lifting plate (11), and the limiting seats are slidably connected to the corresponding limiting grooves.

6. A rice polishing machine according to claim 1, characterized in that: A rotating hole is provided on the top inner wall of the housing (1), and an annular groove is provided on the inner wall of the rotating hole. An annular seat is fixedly installed on the outer side of the rotating seat (7), and the annular seat is rotatably connected to the annular groove.

7. A rice polishing machine according to claim 1, characterized in that: Guide seats (15) are fixedly installed on the front and rear inner walls of the housing (1), and guide rods (16) are fixedly installed on the top of the guide seats (15), and the guide rods (16) pass through the polishing roller (5).

8. A rice polishing machine according to claim 1, characterized in that: The bottom inner wall of the housing (1) is provided with a guide groove (17), and a discharge pipe (18) is installed on the bottom inner wall of the guide groove (17).

9. A rice polishing machine according to claim 8, characterized in that: An air pump (19) is fixedly installed on one side of the feeding pipe (18), and the air outlet of the air pump (19) extends into the feeding pipe (18).

10. A rice polishing machine according to claim 8, characterized in that: On the other side of the feed pipe (18), a waste discharge pipe (20) connected to the feed pipe (18) is installed, and a filter screen (21) is installed inside the waste discharge pipe (20).

Citation Information

Patent Citations

  • A rice polishing machine

    CN220940864U