Suction type specific gravity stoner for rice processing

By using a double-layer filter plate and airflow synergistic separation technology, and taking advantage of the specific gravity difference between rice and pebbles, combined with vibrating sieving and airflow action, the problem of low separation efficiency of pebbles and rice in existing technologies has been solved, achieving a highly efficient separation effect between pebbles and rice.

CN224168002UActive Publication Date: 2026-04-28YICHENG FUKANG GRAIN & OIL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YICHENG FUKANG GRAIN & OIL CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In existing technologies, vibration filtration methods are difficult to effectively separate small-sized pebbles from rice, resulting in low filtration efficiency.

Method used

Employing a double-layer filter plate structure and airflow-coordinated separation technology, this system utilizes the specific gravity difference between rice and pebbles, combined with vibrating sieving and airflow action, to achieve graded filtration. The separation of pebbles and rice is achieved through the inclined arrangement of the upper and lower filter plates and airflow purging.

Benefits of technology

It improves the filtration effect of stones, enhances the ability to remove impurities during rice processing, and ensures the effective separation of rice and stones.

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Abstract

The utility model relates to the technical field of rice processing, in particular to a rice processing suction type specific gravity stoning machine which comprises a supporting plate, and a rice stoning mechanism is arranged on the inner side of the supporting plate. The rice stone removing mechanism comprises a supporting bottom plate, a sliding plate is slidably installed on the upper side of the supporting bottom plate, a rubber sealing box is arranged on the right side of the sliding plate, a built-in motor is arranged on the inner side of the rubber sealing box, a support is fixedly installed on the upper side of the supporting bottom plate, the built-in motor is fixedly installed on the side wall of the support, and a cam is fixedly installed at the output end of the built-in motor. The left side of the sliding plate is provided with a spring, the upper side of the sliding plate is symmetrically provided with supporting side plates, and the inner sides of the supporting side plates are in threaded connection with a lower filter plate and an upper filter plate. According to the utility model, through the arrangement of the rice stone removing mechanism, the double separation effects of pneumatic and vibration are adopted, and in addition, the arrangement of the double-layer filter plate is adopted, so that the stone separation effect is better, and the practicability is enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to a suction-type destoner for rice processing. Background Technology

[0002] A gravity destoner is a device that uses the difference in density and suspension velocity between granular materials (paddy rice, brown rice, rice, wheat, etc.) and minerals (mainly pebbles, etc.) to separate the minerals from the granular materials using mechanical airflow and a screen surface that reciprocates along a specific trajectory. It is an essential piece of equipment in rice processing.

[0003] The utility model patent with authorization announcement number CN220387124U discloses a suction-type destoning machine for rice processing, including a machine body. Both sides of the inner wall of the machine body are fixedly connected to mounting blocks. Both sides of the inner wall of the mounting blocks are fixedly connected to a first spring. One end of the first spring is fixedly connected to a vibrating screen frame. A vibrating screen plate is slidably connected inside the vibrating screen frame. A screen is fixedly connected inside the vibrating screen plate. A second spring is fixedly connected to the bottom of the vibrating screen frame. One end of the second spring is fixedly connected to a connecting rod.

[0004] The aforementioned patent uses vibration filtration to remove stones, but it is difficult to separate smaller stones. To improve the filtration efficiency for stones in rice, we propose a suction-type gravity destoner for rice processing. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a suction-type destoner for rice processing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A suction-type destoning machine for rice processing includes a support plate, on the inner side of which a rice destoning mechanism is provided. The rice destoning mechanism includes a support base plate, a slide plate slidably mounted on the upper side of the support base plate, a rubber sealing box on the right side of the slide plate, a built-in motor inside the rubber sealing box, a bracket fixedly mounted on the upper side of the support base plate, the built-in motor fixedly mounted on the side wall of the bracket, a cam fixedly mounted on the output end of the built-in motor, a shaft seat fixedly mounted on the left side of the slide plate, a wheel rotatably mounted on the end of the shaft seat, a spring on the left side of the slide plate, and support side plates symmetrically mounted on the upper side of the slide plate. A lower filter plate and an upper filter plate are screwed onto the inner side of the support side plates.

[0008] Furthermore, the lower filter plate is displaced below the upper filter plate, the filter holes of the lower filter plate are smaller than those of the upper filter plate, and the filter holes of the upper filter plate are slightly larger than the grain size of rice.

[0009] By adopting the above technical solution, the upper filter plate is used to filter out impurities with larger particle sizes, and the rice follows the impurities with smaller particle sizes into the lower filter plate. By adopting a graded filtration method, the filtration effect on stones can be improved.

[0010] Furthermore, both the upper and lower filter plates are inclined, and an extension plate is fixedly installed on the left side of the upper filter plate.

[0011] Furthermore, a symmetrical ear plate is fixedly installed on the right side of the slide plate, and a sealing bellows is fixedly installed on the right side of the ear plate. The spring is disposed inside the sealing bellows and is fixedly connected between the ear plate and the right side of the support base plate.

[0012] By adopting the above technical solution, the sealing tube is sleeved on the outside of the spring, ensuring the working stability of the spring.

[0013] Furthermore, a rotating roller is rotatably mounted on the bottom of the skateboard.

[0014] Furthermore, a rice collection trough is provided on the lower side of the lower filter plate.

[0015] By adopting the above technical solution, the rice collection trough is used to collect rice filtered down from the lower filter plate.

[0016] Furthermore, a fixed seat is provided on the right side of the slide plate, a frame tube is fixedly installed on the upper side of the fixed seat, several through pipes are fixedly installed on the inner side of the frame tube, several air blowing pipes are connected and installed on the upper side of the through pipes, a dustproof net is provided at the port of the air blowing pipe, and several air blowing pipes are located at the bottom of the lower filter plate.

[0017] Furthermore, an air pump is provided on the side of the frame tube, and an air supply pipe is installed between the air pump and the frame tube. An air extraction pipe is installed on the side of the air supply pipe.

[0018] By adopting the above technical solution, the air supply pipes are evenly distributed on the lower side of the lower filter plate, so that when the air pump 58 provides air, the air supply pipes can blow air onto the lower filter plate.

[0019] Furthermore, a lateral support is fixedly installed between the through pipe and the fixed base.

[0020] Furthermore, a conical bucket is fixedly installed on the inner side of the support plate, and a controller is fixedly installed on the side wall of the support plate.

[0021] By adopting the above technical solution, the controller is used to control the working status of each electrical component.

[0022] Compared with related technologies, the suction-type destoner for rice processing proposed in this utility model has the following beneficial effects:

[0023] In this utility model, a suction-type destoning machine for rice processing is described. A built-in motor drives a cam to interact with a rotating wheel. The spring's rebound force keeps the cam in contact with the rotating wheel, causing the entire sliding plate and its lower and upper filter plates to vibrate. When the lower filter plate vibrates under the drive of the built-in motor, due to the difference in specific gravity between rice and pebbles, the lighter rice floats to the top under the influence of airflow, while the heavier pebbles sink to the bottom, forming initial stratification. During the sieving process, the heavier pebbles slide towards the upper side of the screen (the higher side) due to gravity and the inclination of the screen surface. This is because pebbles, being heavier, require greater friction to move on the screen surface. Simultaneously, the lighter rice, propelled by the airflow and its own gravity, slides towards the lower side of the screen (the lower side), achieving separation of pebbles and rice. Furthermore, the use of a double-layer filter plate further enhances the separation effect of pebbles, improving practicality. Attached Figure Description

[0024] Figure 1 A three-dimensional structural diagram of a suction-type gravity destoner for rice processing proposed in this utility model. Figure 1 ;

[0025] Figure 2 A three-dimensional structural diagram of a suction-type gravity destoner for rice processing proposed in this utility model. Figure 2 ;

[0026] Figure 3 A three-dimensional structural diagram of a rice destoner. Figure 1 ;

[0027] Figure 4 A three-dimensional structural diagram of a rice destoner. Figure 2 ;

[0028] Figure 5 A three-dimensional structural diagram of a rice destoner. Figure 3 ;

[0029] Figure 6 A three-dimensional structural diagram of a rice destoner. Figure 4 .

[0030] In the diagram: 1. Support plate; 2. Controller; 3. Conical hopper; 4. Rice collection trough; 5. Rice destoning mechanism; 51. Support base plate; 52. Fixing seat; 53. Slide plate; 54. Support side plate; 55. Frame tube; 56. Through pipe; 57. Air blowing pipe; 58. Air pump; 59. Air delivery pipe; 510. Air extraction pipe; 511. Ear plate; 512. Sealing corrugated pipe; 513. Spring; 514. Rubber sealing box; 515. Bracket; 516. Built-in motor; 517. Cam; 518. Shaft seat; 519. Rotary wheel; 520. Lower filter plate; 521. Upper filter plate; 522. Extension plate; 523. Rotary roller; 524. Lateral support. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-6 A rice processing suction-type destoning machine includes a support plate 1, and a rice destoning mechanism 5 is provided on the inner side of the support plate 1. The rice destoning mechanism 5 includes a support base plate 51, a slide plate 53 slidably mounted on the upper side of the support base plate 51, a rubber sealing box 514 provided on the right side of the slide plate 53, an internal motor 516 provided inside the rubber sealing box 514, a bracket 515 fixedly mounted on the upper side of the support base plate 51, the internal motor 516 fixedly mounted on the side wall of the bracket 515, a cam 517 fixedly mounted on the output end of the internal motor 516, a bearing seat 518 fixedly mounted on the left side of the slide plate 53, a rotating wheel 519 rotatably mounted on the end of the bearing seat 518, a spring 513 provided on the left side of the slide plate 53, and support side plates 54 symmetrically mounted on the upper side of the slide plate 53. A lower filter plate 520 and an upper filter plate 521 are screwed onto the inner side of the support side plates 54.

[0033] In this embodiment, a fixed seat 52 is provided on the right side of the slide plate 53. A frame tube 55 is fixedly installed on the upper side of the fixed seat 52. Several through pipes 56 are fixedly installed on the inner side of the frame tube 55. Several air blowing pipes 57 are connected and installed on the upper side of the through pipes 56. A dustproof net is provided at the port of the air blowing pipes 57. Several air blowing pipes 57 are located at the bottom of the lower filter plate 520. An air pump 58 is provided on the side of the frame tube 55. An air supply pipe 59 is connected and installed between the air pump 58 and the frame tube 55. An air extraction pipe 510 is connected and installed on the side of the air supply pipe 59. A lateral support 524 is fixedly installed between the through pipes 56 and the fixed seat 52.

[0034] Through the above structure, the lateral support 524 improves the connection stability of the frame tube 55 and the through tube 56 assembly on the upper side of the fixed seat 52.

[0035] In this embodiment, the lower filter plate 520 is displaced below the upper filter plate 521, the filter holes of the lower filter plate 520 are smaller than the filter holes of the upper filter plate 521, and the filter holes of the upper filter plate 521 are slightly larger than the grain size of rice.

[0036] Through the above structure, the upper filter plate 521 is used to filter out larger impurities, and the lower filter plate 520, in conjunction with the upward airflow, further separates rice and small-diameter pebbles. By adopting a graded screening and filtration method, the filtration efficiency of pebbles is improved.

[0037] In this embodiment, both the upper filter plate 521 and the lower filter plate 520 are inclined, and an extension plate 522 is fixedly installed on the left side of the upper filter plate 521.

[0038] With the above structure, the extension plate 522 is designed to discharge impurities on the upper filter plate 521 from the side, preventing larger particles from falling into the rice collection tank 4.

[0039] In this embodiment, a lug plate 511 is symmetrically fixedly installed on the right side of the slide plate 53, and a sealing bellows 512 is fixedly installed on the right side of the lug plate 511. A spring 513 is disposed inside the sealing bellows 512 and is fixedly connected between the lug plate 511 and the right side of the support base plate 51.

[0040] Through the above structure, the rebound force provided by the spring 513 causes the rotating wheel 519 on the side of the slide plate 53 to abut against the cam 517. Thus, when the built-in motor 516 drives the cam 517 to rotate, it can provide a vibration effect to the slide plate 53, thereby providing a vibration effect to the upper filter plate 521 and the lower filter plate 520.

[0041] In this embodiment, a rotating roller 523 is rotatably mounted on the bottom of the slide plate 53, and a rice collection trough 4 is provided on the lower side of the lower filter plate 520.

[0042] Through the above structure, the roller 523 is used to reduce the friction between the slide plate 53 and the supporting base plate 51.

[0043] In this embodiment, a cone hopper 3 is fixedly installed on the inner side of the support plate 1, and a controller 2 is fixedly installed on the side wall of the support plate 1.

[0044] With the above structure, the controller is used to control the operating state of each electrical component.

[0045] In this invention, during use, the rice and impurity mixture to be processed enters the rice destoning mechanism 5 through the conical hopper 3 inside the support plate 1. The design of the conical hopper 3 guides the material to enter the subsequent processing area in a concentrated and smooth manner, preventing the material from scattering. The material first falls onto the inclined upper filter plate 521. The filter holes of the upper filter plate 521 are slightly larger than the rice particle size. Its main function is to initially filter out larger impurities, such as straw and clods of soil. Because the upper filter plate 521 is inclined, these larger impurities will slide to one side along the surface of the filter plate under the action of gravity, and finally pass through the extension plate 522 fixedly installed on the left side. The lateral output motor 516 starts, and the cam 517 at its output end begins to rotate. Because the rotating wheel 519, rotatably mounted at the end of the left axle seat 518 of the slide plate 53, is always in contact with the cam 517 under the restoring force of the spring 513, the continuous rotation of the cam 517 continuously pushes the rotating wheel 519, thereby causing the entire slide plate 53 and its mounted support side plate 54, lower filter plate 520, and upper filter plate 521 to reciprocate. The rotating roller 523 rotatably mounted at the bottom of the slide plate 53 effectively reduces the friction between the slide plate 53 and the support base plate 51, making the vibration process smoother. In the process, rice and pebbles in the material exhibit different motion states due to their different specific gravities. Simultaneously, air pump 58 starts working, supplying gas into frame pipe 55 through air delivery pipe 59. The gas enters air blowing pipe 57 through through pipe 56 inside frame pipe 55 and is blown upwards from the port of air blowing pipe 57. A dustproof net at the port of air blowing pipe 57 prevents material from entering the pipe and affecting airflow. The upward airflow acts on the material on the lower filter plate 520; the lighter rice floats to the top under the influence of airflow and vibration, while the heavier pebbles sink to the bottom, achieving initial stratification. The upper filter plate 521 then initially filters the material. After filtration, the rice and smaller particle size impurities pass through the upper filter plate 521 and fall into the lower filter plate 520. The filter holes of the lower filter plate 520 are smaller than those of the upper filter plate 521, and the lower filter plate 520 is also inclined. Under the continuous action of vibration and airflow, the heavier stones will slide to the higher side of the screen surface due to the combined influence of gravity and the inclination of the screen surface, while the lighter rice will slide to the lower side of the screen surface due to the push of the airflow and its own gravity. This achieves further separation of stones and rice. This graded filtration and the coordinated separation of specific gravity, vibration and airflow greatly improves the separation effect of stones.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A suction-type destoning machine for rice processing, characterized in that, Includes a support plate (1), and a rice destone removal mechanism (5) is provided on the inner side of the support plate (1); The rice destone removal mechanism (5) includes a supporting base plate (51), a sliding plate (53) is slidably installed on the upper side of the supporting base plate (51), a rubber sealing box (514) is provided on the right side of the sliding plate (53), a built-in motor (516) is provided inside the rubber sealing box (514), a bracket (515) is fixedly installed on the upper side of the supporting base plate (51), the built-in motor (516) is fixedly installed on the side wall of the bracket (515), a cam (517) is fixedly installed on the output end of the built-in motor (516), a bearing seat (518) is fixedly installed on the left side of the sliding plate (53), a rotating wheel (519) is rotatably installed at the end of the bearing seat (518), a spring (513) is provided on the left side of the sliding plate (53), and supporting side plates (54) are symmetrically installed on the upper side of the sliding plate (53). A lower filter plate (520) and an upper filter plate (521) are screwed onto the inner side of the supporting side plate (54).

2. The rice processing suction gravity destoner according to claim 1, characterized in that, The lower filter plate (520) is displaced below the upper filter plate (521), and the filter holes of the lower filter plate (520) are smaller than those of the upper filter plate (521), while the filter holes of the upper filter plate (521) are slightly larger than the grain size of rice.

3. A suction-type destoner for rice processing according to claim 1, characterized in that, Both the upper filter plate (521) and the lower filter plate (520) are inclined, and an extension plate (522) is fixedly installed on the left side of the upper filter plate (521).

4. A suction-type destoner for rice processing according to claim 1, characterized in that, The right side of the slide plate (53) is symmetrically fixedly equipped with ear plates (511), and the right side of the ear plates (511) is fixedly equipped with sealing bellows (512). The spring (513) is disposed inside the sealing bellows (512) and is fixedly connected between the ear plates (511) and the right side of the support base plate (51).

5. A suction-type destoner for rice processing according to claim 1, characterized in that, The bottom of the slide plate (53) is rotatably mounted with a roller (523).

6. A suction-type destoner for rice processing according to claim 1, characterized in that, A rice collection trough (4) is provided on the lower end of the lower filter plate (520).

7. A suction-type gravity destoner for rice processing according to claim 1, characterized in that, A fixed seat (52) is provided on the right side of the slide plate (53). A frame tube (55) is fixedly installed on the upper side of the fixed seat (52). Several through pipes (56) are fixedly installed on the inner side of the frame tube (55). Several air blowing pipes (57) are connected and installed on the upper side of the through pipes (56). A dustproof net is provided at the port of the air blowing pipe (57). Several air blowing pipes (57) are located at the bottom of the lower filter plate (520).

8. A suction-type destoning machine for rice processing according to claim 7, characterized in that, An air pump (58) is provided on the side of the frame tube (55), and an air supply pipe (59) is installed between the air pump (58) and the frame tube (55). An air extraction pipe (510) is installed on the side of the air supply pipe (59).

9. A suction-type destoner for rice processing according to claim 7, characterized in that, A lateral support (524) is fixedly installed between the through pipe (56) and the fixed base (52).

10. A suction-type destoner for rice processing according to claim 1, characterized in that, A cone bucket (3) is fixedly installed on the inner side of the support plate (1), and a controller (2) is fixedly installed on the side wall of the support plate (1).

Citation Information

Patent Citations

  • Suction type specific gravity stoner for rice processing

    CN220387124U