A polishing device for rice processing

By using a servo motor-driven polishing cylinder and scraper structure, along with a dust collector system, the problem of uneven grain size after rice polishing has been solved, achieving efficient polishing and impurity separation, and improving the automation level of rice processing.

CN224573788UActive Publication Date: 2026-07-31GAOAN RUIQIAN RICE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GAOAN RUIQIAN RICE IND CO LTD
Filing Date
2025-09-19
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing rice polishing machines cannot effectively separate impurities and broken rice after polishing, resulting in uneven particle size and requiring subsequent filtration, which is inconvenient to use.

Method used

The polishing cylinder and scraper structure driven by a servo motor, combined with the vacuum cleaner's negative pressure system, enables rice to be polished by rotation in the polishing cylinder and broken rice to be collected. The servo motor accelerates the speed at which the rice passes through the polishing rod, the scraper prevents deposition, and the vacuum cleaner removes broken rice during the polishing process.

Benefits of technology

It improves the uniformity of rice particles and polishing efficiency after polishing, reduces the need for subsequent filtration steps, and improves processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a polishing device for rice processing, including a worktable. A collection plate is fixed to the center of the upper surface of the worktable. A vacuum cleaner is fixed to the right side of the inside of the worktable. A support frame is fixed to the center of the upper surface of the worktable. A left servo motor is fixed to the left side of the support frame, and a right servo motor is fixed to the lower right side of the support frame. A polishing cylinder is rotatably connected to the center of the support frame. A connecting column is horizontally embedded inside the polishing cylinder. A connecting column is fixed to the outer wall of the connecting column. A scraper is fixed to the end of the connecting column away from the center of the polishing cylinder. A sealing cover is rotatably connected to the top of the polishing cylinder via a hinge. A connecting piece is fixed to the center of the right side of the support frame via a bracket. This invention can quickly polish rice, with fewer polishing dead corners, resulting in more uniform rice grain size and better polishing effect.
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Description

Technical Field

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

[0002] Rice, also known as paddy rice, is a food made from paddy through cleaning, hulling, milling, and finishing processes. In the rice processing technology, the surface of the rice needs to be treated to make it crystal clear and form a very thin gel film. This process is called polishing. In related technologies, specialized polishing machines are used to polish the rice during the processing. However, existing polishing machines do not separate impurities and broken rice grains after polishing, resulting in unevenly sized rice particles. This necessitates subsequent filtration, which is inconvenient. Utility Model Content

[0003] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology and to propose a polishing device for rice processing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A polishing device for rice processing includes a workbench, a collection plate fixed to the center of the upper surface of the workbench, a vacuum cleaner fixed to the right side of the inside of the workbench, a support frame fixed to the center of the upper surface of the workbench, a left servo motor fixed to the left side of the support frame, a right servo motor fixed to the lower right side of the support frame, a polishing cylinder rotatably connected to the center of the support frame, a connecting column horizontally embedded inside the polishing cylinder, a connecting column fixed to the outer wall of the connecting column, a scraper fixed to the end of the connecting column away from the center of the polishing cylinder, a sealing cover rotatably connected to the top of the polishing cylinder via a hinge, and a connecting piece fixed to the center right side of the support frame via a bracket.

[0005] Preferably, the power output end on the right side of the left servo motor is connected to the polishing cylinder in a clockwise direction via a transmission shaft, and the polishing cylinder rotates horizontally in the middle of the support frame.

[0006] Preferably, the power output end on the right side of the right servo motor is connected to the connecting column in a counterclockwise direction via a chain belt. The connector is embedded in the right side of the hollow channel inside the connecting column, and the left outer wall of the connector is in close contact with the right side of the hollow channel inside the connecting column.

[0007] Preferably, the outer wall of the scraper is in close contact with the inner wall of the polishing cylinder, and the left and right ends of the scraper are in close contact with the left and right ends of the interior of the polishing cylinder, respectively.

[0008] Preferably, the scraper has 5-9 polishing rods equidistantly arranged at one end near the middle of the connecting column, and the front and rear ends of the scraper are provided with air intake channels with equidistant openings.

[0009] Preferably, the air intake end of the vacuum cleaner is connected to the hollow channel inside the connecting column through a pipe and a connector, and the air intake channel inside the polishing rod is connected to the hollow channel inside the polishing rod and the connecting column.

[0010] The rice to be polished is poured into the polishing drum. The left servo motor drives the polishing drum to rotate clockwise, causing the rice to roll inside. Due to gravity, the rice repeatedly passes between adjacent polishing rods on both sides, allowing the polishing rods to polish the rice. During operation, the right servo motor drives the connecting column to rotate counterclockwise inside the polishing drum, causing the connecting column to drive the polishing rods and scraper to rotate clockwise inside the polishing drum, accelerating the speed at which the rice passes between the polishing rods. This results in a better polishing effect. Furthermore, during the polishing process, the vacuum cleaner generates negative pressure, which is used to attract and collect broken rice particles generated during polishing through the air intake channels in the pipes, connectors, connecting column, polishing rods, and scraper. After polishing, the rice particles are more uniform in size, resulting in higher polishing efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the connecting column structure in this utility model; Figure 4 This is an exploded view of a portion of the polishing rod and scraper structure in this utility model.

[0012] Legend: Workbench 1, collection plate 101, vacuum cleaner 102, support frame 103, left servo motor 2, right servo motor 3, polishing cylinder 4, connecting column 401, polishing rod 402, scraper 403, sealing cover 404, connector 5. Detailed Implementation

[0013] Example 1, referring to Figure 1-4A polishing device for rice processing includes a workbench 1, a collection plate 101 fixed in the middle of the upper surface of the workbench 1, a vacuum cleaner 102 fixed in the right side of the inside of the workbench 1, a support frame 103 fixed in the middle of the upper surface of the workbench 1, a left servo motor 2 fixed in the left side of the support frame 103, a right servo motor 3 fixed in the lower right side of the support frame 103, a polishing cylinder 4 rotatably connected in the middle of the support frame 103, a connecting column 401 horizontally embedded in the inside of the polishing cylinder 4, a connecting column 401 fixed in the outer wall of the connecting column 401, a scraper 403 fixed in the end of the connecting column 401 away from the middle of the polishing cylinder 4, a sealing cover 404 rotatably connected to the top of the polishing cylinder 4 via a hinge, and a connecting piece 5 fixed in the middle right side of the support frame 103 via a bracket.

[0014] The power output end on the right side of the left servo motor 2 is connected to the polishing cylinder 4 in a clockwise direction via a transmission shaft. The polishing cylinder 4 rotates horizontally in the middle of the support frame 103. The power output end of the right servo motor 3 is connected to the connecting column 401 in a counterclockwise direction via a chain belt. The connector 5 is embedded in the right side of the hollow channel inside the connecting column 401, and the left outer wall of the connector 5 is in close contact with the right side of the hollow channel inside the connecting column 401. As the connecting column 401 rotates on the left side of the connector 5, the vacuum cleaner 102 can generate negative pressure normally through the air intake channels in the pipe, connector 5, connecting column 401, polishing rod 402 and scraper 403 to attract and collect the broken rice generated during the polishing process. After the rice to be polished is poured into the polishing cylinder 4, the sealing cap 404 is tightened. The left servo motor 2 drives the polishing cylinder 4 to rotate clockwise, so that the rice rolls in the polishing cylinder 4. At this time, the rice repeatedly passes between the adjacent polishing rods 402 on the left and right ends due to gravity, so that the polishing rods 402 polish the rice. During operation, the right servo motor 3 drives the connecting column 401 to rotate counterclockwise in the polishing cylinder 4, which in turn drives the polishing rod 402 and scraper 403 to rotate clockwise in the polishing cylinder 4, thus speeding up the speed at which the rice passes between the polishing rods and achieving a better polishing effect. The outer wall of the scraper 403 is in close contact with the inner wall of the polishing cylinder 4, and the left and right ends of the scraper 403 are in close contact with the left and right ends of the interior of the polishing cylinder 4, respectively.

[0015] When the scraper 403 rotates clockwise in the polishing cylinder 4, it can scrape the rice accumulated at the bottom of the polishing cylinder 4, preventing the rice from accumulating at the bottom of the polishing cylinder 4 for a long time, reducing the dead angles for polishing the rice, and further improving the polishing effect of the device on the rice.

[0016] Example 2 differs from Example 1 in that, in this example, 5-9 polishing rods 402 are equidistantly arranged at one end of the scraper 403 near the middle of the connecting column 401, and air intake channels are provided at equidistant openings at both the front and rear ends of the scraper 403. The air intake end of the vacuum cleaner 102 is connected to the hollow channel inside the connecting post 401 through the pipe and connector 5. The air intake channel inside the polishing rod 402 is connected to the hollow channel inside the polishing rod 402 and the connecting post 401. During the polishing process of rice, the vacuum cleaner 102 generates negative pressure and draws in and collects the broken rice generated during the polishing process through the air intake channels in the pipe, connector 5, connecting column 401, polishing rod 402 and scraper 403. After polishing, the rice particles are more uniform in size and the polishing efficiency is higher.

[0017] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A polishing device for rice processing, comprising a worktable (1), characterized in that, A collection plate (101) is fixed in the middle of the upper surface of the workbench (1). A vacuum cleaner (102) is fixed in the right side of the inside of the workbench (1). A support frame (103) is fixed in the middle of the upper surface of the workbench (1). A left servo motor (2) is fixed in the left side of the support frame (103). A right servo motor (3) is fixed in the lower right side of the support frame (103). A polishing cylinder (4) is rotatably connected in the middle of the support frame (103). A connecting column (401) is horizontally embedded in the inside of the polishing cylinder (4). A connecting column (401) is fixed in the outer wall of the connecting column (401). A scraper (403) is fixed in the end of the connecting column (401) away from the middle of the polishing cylinder (4). A sealing cover (404) is rotatably connected to the top of the polishing cylinder (4) through a hinge. A connector (5) is fixed in the middle right side of the support frame (103) through a bracket.

2. The polishing equipment for rice processing according to claim 1, characterized in that, The power output end of the left servo motor (2) on the right side is connected to the polishing cylinder (4) in a clockwise direction via a transmission shaft. The polishing cylinder (4) rotates horizontally in the middle of the support frame (103).

3. The polishing equipment for rice processing according to claim 1, characterized in that, The power output end of the right servo motor (3) is connected to the connecting column (401) in a counterclockwise direction via a chain belt. The connecting piece (5) is embedded in the right side of the hollow channel inside the connecting column (401), and the left outer wall of the connecting piece (5) is close to the right side of the hollow channel inside the connecting column (401).

4. The polishing equipment for rice processing according to claim 1, characterized in that, The outer wall of the scraper (403) is in close contact with the inner wall of the polishing cylinder (4), and the left and right ends of the scraper (403) are in close contact with the left and right ends of the interior of the polishing cylinder (4), respectively.

5. The polishing equipment for rice processing according to claim 1, characterized in that, The scraper (403) has 5-9 polishing rods (402) equidistantly arranged at one end near the middle of the connecting column (401), and the front and rear ends of the scraper (403) are provided with air intake channels with equidistant openings.

6. The polishing equipment for rice processing according to claim 5, characterized in that, The air intake end of the vacuum cleaner (102) is connected to the hollow channel inside the connecting column (401) through a pipe and connector (5). The air intake channel inside the polishing rod (402) is connected to the hollow channel inside the polishing rod (402) and the connecting column (401).