Rice processing and screening device with improved structure

By designing improved structures for the screening and scraping components, the rice processing device achieves multi-stage screening and efficient sorting, solving the problem of mixed broken and whole rice grains and improving the appearance and nutritional value of rice products.

CN224195232UActive Publication Date: 2026-05-05HEILONGJIANG SANLUYUAN RICE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEILONGJIANG SANLUYUAN RICE IND CO LTD
Filing Date
2025-05-06
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The current rice processing technology lacks efficient particle size screening devices, resulting in broken rice grains being mixed with whole rice grains, which affects the appearance, taste and nutritional value of the product.

Method used

An improved rice processing screening device with a sieving component and a scraping component was designed. The device uses a vibrating motor to drive the sieving box to vibrate for multi-stage sieving, and a servo motor to drive the scraper to move back and forth to avoid screen clogging.

Benefits of technology

Multi-stage screening was achieved, which improved screening effect and efficiency, avoided screen clogging, and enhanced the overall quality of rice products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a rice processing screening device with an improved structure, which belongs to the field of rice processing, and comprises a box body, a plurality of screening assemblies, a plurality of screening assemblies and a plurality of screening assemblies, the screening assembly comprises a screening box, a screen mesh, a vibration motor and two discharging plates, the screening box is fixedly arranged in the box body, the bottom of the screening box is in an arc shape, the screen mesh is fixedly arranged at the bottom of the screening box, the vibration motor is fixedly arranged on one side of the screening box, and the two discharging plates are arranged in the screening box. And the two discharging plates penetrate through the two sides of the box body correspondingly and are fixedly arranged, and the two discharging plates are arranged below the two ends of the screen correspondingly. The screening assembly is arranged, rice of different sizes can be subjected to multi-stage screening, and the screening effect is improved; and the scraping assembly is further arranged, rice in the screen can be scraped back and forth, the screening efficiency is improved, meanwhile, the screen is prevented from being blocked, and practicability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to an improved rice processing screening device. Background Technology

[0002] Rice, also known as paddy rice, is a food made from paddy rice through processes such as cleaning, hulling, milling, and finishing. Rice contains about 75% carbohydrates, 7%-8% protein, 1.3%-1.8% fat, and is also rich in B vitamins.

[0003] In the current rice processing technology field, most rice processing processes lack efficient particle size screening devices, and broken rice grains cannot be effectively separated. This directly leads to the inevitable mixing of broken rice grains with whole rice grains during the processing. Consequently, in various stages such as packaging, sales, and even consumption by consumers, the presence of broken rice may reduce the overall appearance, taste, and nutritional value of the rice, seriously affecting the quality of the final rice product. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an improved rice processing and screening device.

[0005] An embodiment of this utility model provides an improved structure for rice processing and screening, comprising:

[0006] The box body, wherein multiple screening components are installed inside the box body;

[0007] The screening assembly includes a screening box, a screen, a vibrating motor, and two discharge plates. The screening box is fixedly installed inside the box, and the bottom of the screening box is arc-shaped. The screen is fixedly installed at the bottom of the screening box, and the vibrating motor is fixedly installed on one side of the screening box. The two discharge plates are fixedly installed through both sides of the box and are respectively located below both ends of the screen.

[0008] The screening box is equipped with a scraping component, which is used to scrape the rice.

[0009] Furthermore, the scraping assembly includes a movable plate, a scraper, and a transmission rod. The bottom of the movable plate is provided with a groove, the scraper is slidably disposed in the groove, a spring is fixedly disposed on the top of the scraper, the top of the spring is fixedly disposed on the inner top of the groove, the transmission rod is fixedly disposed on one side of the movable plate, and a sliding hole is provided through the back of the housing, the transmission rod is movably disposed through the sliding hole.

[0010] Furthermore, a drive rod is fixedly installed on the outer side of the transmission rod, a servo motor is fixedly installed on the back of the housing, and a threaded rod is fixedly installed at the output end of the servo motor, the threaded rod passing through the drive rod for connection.

[0011] Furthermore, a guide rod is fixedly installed on the back of the housing, and the guide rod slides through the drive rod.

[0012] Furthermore, a feed hopper is provided through the top of the box, and a slag discharge pipe is fixedly provided at the bottom of the box.

[0013] Furthermore, a door is rotatably installed on the front side of the box, and a bracket is fixedly installed at the bottom of the box.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. A screening component is installed. The vibrating motor can drive the screening box to vibrate, thereby screening the rice. Smaller rice grains that pass through the screen will fall into the screening box below for secondary screening. This process is repeated to achieve multi-stage screening and improve the screening efficiency.

[0016] 2. A scraping assembly is installed. The servo motor can drive the threaded rod to rotate alternately in the forward and reverse directions. In turn, the drive rod and transmission rod can drive the scraper to move back and forth, scraping the rice in the screen back and forth, thereby improving the screening efficiency and preventing screen blockage.

[0017] In summary, this utility model is equipped with a screening component that can perform multi-stage screening of rice of different sizes, thereby improving the screening effect; it is also equipped with a scraping component that can scrape the rice in the screen back and forth, improving screening efficiency and preventing screen blockage, thus increasing practicality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of an improved rice processing and screening device according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the screening box in a rice processing screening device with an improved structure as described in this embodiment of the present invention.

[0020] Figure 3 This is a cross-sectional view of the moving plate in an improved rice processing and screening device according to an embodiment of the present invention.

[0021] Figure 4 This is a three-dimensional schematic diagram of the back of an improved rice processing and screening device according to an embodiment of the present invention.

[0022] In the above attached diagram: 1. Box body, 2. Screening box, 3. Screen, 4. Discharge plate, 5. Moving plate, 6. Spring, 7. Scraper, 8. Transmission rod, 9. Sliding hole, 10. Drive rod, 11. Threaded rod, 12. Servo motor, 13. Vibration motor, 14. Feed hopper, 15. Box door, 16. Support, 17. Slag discharge pipe, 18. Guide rod. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1-4 As shown in the figure, this utility model embodiment proposes an improved rice processing screening device, comprising:

[0025] The box 1 has a feed hopper 14 extending through its top for pouring rice into it; a slag discharge pipe 17 is fixedly installed at the bottom for discharging fine residue or dust from the rice; a door 15 is rotatably mounted on the front of the box 1 for cleaning its interior; a support 16 is fixedly installed at the bottom of the box 1 for supporting it; and multiple screening components are installed inside the box 1.

[0026] The screening assembly includes a screening box 2, a screen 3, a vibrating motor 13, and two discharge plates 4. The screening box 2 is fixedly installed inside the box body 1, and the bottom of the screening box 2 is arc-shaped. The screen 3 is also fixedly installed at the bottom of the screening box 2, making the screen 3 arc-shaped as well, so that the rice flows towards the center. The mesh size of the multiple screens 3 decreases from top to bottom, thereby achieving multi-stage screening and fully screening rice of different sizes to ensure the screening effect. The vibrating motor 13 is fixedly installed on one side of the screening box 2. The vibrating motor 13 is used to drive the screening box 2 and the rice inside to vibrate, thereby improving the screening effect and efficiency. The two discharge plates 4 are fixedly installed through both sides of the box body 1. The two discharge plates 4 are respectively located below the two ends of the screen 3, so that the rice falling from the two ends of the screen 3 can fall onto the discharge plates 4 on the same side.

[0027] The screening box 2 is equipped with a scraping assembly for scraping rice. The scraping assembly includes a moving plate 5, a scraper 7, and a transmission rod 8. The bottom of the moving plate 5 is provided with a chute, and the scraper 7 is slidably disposed in the chute, abutting against the screen 3. A spring 6 is fixedly disposed on the top of the scraper 7, and the top of the spring 6 is fixedly disposed on the inner top of the chute, so that the scraper 7 and the moving plate 5 are elastically connected by the spring 6. The transmission rod 8 is fixedly disposed on one side of the moving plate 5, and a sliding hole 9 is provided through the back of the box 1. The transmission rod 8 is movably disposed through the sliding hole 9, so that the transmission rod 8 can slide within the sliding hole 9.

[0028] A drive rod 10 is fixedly installed on the outer side of the transmission rod 8, so that the drive rod 10 can drive the moving plate 5 and the scraper 7 to move through the transmission rod 8; a guide rod 18 is fixedly installed on the back of the housing 1, and the guide rod 18 slides through the drive rod 10. The guide rod 18 guides the drive rod 10 and improves stability; a servo motor 12 is fixedly installed on the back of the housing 1, and a threaded rod 11 is fixedly installed at the output end of the servo motor 12, so that the servo motor 12 can drive the threaded rod 11 to rotate in the forward or reverse direction. The threaded rod 11 passes through the drive rod 10 and is connected to it, so that when the threaded rod 11 rotates, it can drive the drive rod 10 to move.

[0029] The detailed working process of this utility model is as follows:

[0030] 1. When in use, pour rice from the feed hopper 14 into the screening box 2 at the top of the box 1. At this time, the vibrating motor 13 can drive the screening box 2 to vibrate, and then the rice is screened through the screen 3 for primary screening. The smaller rice that passes through the screen 3 will fall into the screening box 2 below for secondary screening. This process is repeated to achieve the effect of multi-stage screening.

[0031] 2. At the same time, the servo motor 12 can drive the threaded rod 11 to rotate alternately in the forward and reverse directions, thereby driving the drive rod 10 to move back and forth. The drive rod 10 drives multiple moving plates 5 and scrapers 7 to move back and forth through multiple transmission rods 8, scraping the rice in multiple screens 3 back and forth, thereby improving the screening efficiency and avoiding screen 3 blockage.

[0032] 3. Finally, after a single screening is completed, the servo motor 12 drives multiple scrapers 7 to move to both ends, scraping the rice screened on multiple screens 3 to both ends, and dropping it onto the corresponding discharge plate 4 for discharge.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An improved rice processing and screening device, characterized in that, include: Box (1), wherein multiple screening components are provided inside the box (1); The screening assembly includes a screening box (2), a screen (3), a vibrating motor (13), and two discharge plates (4). The screening box (2) is fixedly installed inside the box body (1). The bottom of the screening box (2) is arc-shaped. The screen (3) is fixedly installed at the bottom of the screening box (2). The vibrating motor (13) is fixedly installed on one side of the screening box (2). The two discharge plates (4) are fixedly installed through both sides of the box body (1). The two discharge plates (4) are respectively installed below the two ends of the screen (3). The screening box (2) is equipped with a scraping component, which is used to scrape the rice.

2. The rice processing and screening device with an improved structure according to claim 1, characterized in that, in: The scraping assembly includes a movable plate (5), a scraper (7), and a transmission rod (8). The bottom of the movable plate (5) is provided with a groove, the scraper (7) is slidably disposed in the groove, the top of the scraper (7) is fixedly provided with a spring (6), the top of the spring (6) is fixedly disposed in the inner top of the groove, the transmission rod (8) is fixedly disposed on one side of the movable plate (5), and a sliding hole (9) is provided through the back of the housing (1), the transmission rod (8) is movably disposed through the sliding hole (9).

3. The rice processing and screening device with an improved structure according to claim 2, characterized in that, in: A drive rod (10) is fixedly installed on the outside of the transmission rod (8), and a servo motor (12) is fixedly installed on the back of the housing (1). A threaded rod (11) is fixedly installed at the output end of the servo motor (12), and the threaded rod (11) passes through the drive rod (10) for connection.

4. The rice processing and screening device with an improved structure according to claim 3, characterized in that, in: A guide rod (18) is fixedly installed on the back of the housing (1), and the guide rod (18) slides through the drive rod (10).

5. The rice processing and screening device with an improved structure according to claim 1, characterized in that, in: A feed hopper (14) is provided through the top of the box (1), and a slag discharge pipe (17) is fixedly provided at the bottom of the box (1).

6. The rice processing and screening device with an improved structure according to claim 1, characterized in that, in: The front side of the box (1) is rotatably equipped with a box door (15), and the bottom of the box (1) is fixedly equipped with a bracket (16).