Graded screening device for high-quality seedlings of sedum aizoon

CN224272113UActive Publication Date: 2026-05-26YUNNAN WANGNUOCUO AGRICULTURAL DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN WANGNUOCUO AGRICULTURAL DEVELOPMENT CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing seedling screening device for *Hedysarum heterotropoides* has a single function and cannot effectively integrate the cleaning and grading processes, resulting in incomplete cleaning, low screening efficiency, and seedlings that are prone to shifting and falling off during the cleaning process, affecting the screening effect and subsequent seedling quality.

Method used

A grading and screening device was designed, comprising a conveyor belt, a separator, a vibrating motor, an electric telescopic rod, a sponge block, a cleaning component, and a screening component. The device achieves rapid and accurate screening of seedlings by uniformly distributing them through vibration and by using a robot and an industrial camera for positioning and cleaning.

Benefits of technology

It enables rapid and accurate screening of seedlings, with good cleaning effect, reducing seedling displacement and damage, and improving the uniformity of seedling cultivation and transplanting.

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Abstract

According to the device, a conveyor belt is arranged on a machine body in a penetrating mode, a partition plate is arranged on the upper surface of the conveyor belt, a vibration motor is arranged on the left side of the machine body, the output end of the vibration motor is fixedly connected with a flow guide frame, the flow guide frame is located above the partition plate, and an electric telescopic rod is fixedly connected into the machine body. An electric telescopic rod is arranged on the machine body, a C-shaped plate is fixedly connected to the output end of the electric telescopic rod, a sponge block is arranged on the lower surface of the C-shaped plate, a cleaning assembly and a screening assembly are arranged on the machine body, and two robots are arranged in the machine body and located on the two sides of the conveying belt correspondingly. The sedum aizoon is cleaned to remove soil and then screened, so that the appearance is clearer, screening is facilitated, improvement of subsequent seedling raising and transplanting uniformity is facilitated, meanwhile, the sedum aizoon can be limited, and displacement during cleaning is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of high-quality seedling screening technology for *Gnaphalium affine*, and in particular to a grading and screening device for high-quality seedlings of *Gnaphalium affine*. Background Technology

[0002] In the development of modern agriculture, *Hedysarum heterotropoides*, as an economic crop with both edible and medicinal value, is experiencing a growing demand for high-quality seedlings due to its large-scale cultivation. Seedling quality directly affects subsequent seedling survival rates and the uniformity of growth after transplanting, ultimately determining yield and economic benefits. However, existing methods for screening *Hedysarum heterotropoides* seedlings still face numerous technical bottlenecks. In traditional screening processes, seedlings are often piled up or unevenly distributed, making it difficult to thoroughly remove soil from the roots during washing. Residual soil not only interferes with the screening personnel's judgment of key indicators such as seedling appearance and root development but also easily breeds bacteria, affecting seedling health. Furthermore, the lack of effective positioning measures during washing makes seedlings prone to displacement or even falling off, resulting in poor washing effects and low screening efficiency. In addition, existing screening devices have limited functionality, making it difficult to effectively integrate washing and grading processes, thus failing to meet the need for rapid and accurate screening of *Hedysarum heterotropoides* seedlings. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a grading and screening device for high-quality seedlings of *Hedysarum heterotropoides*, which solves the problem of soil on the seedlings affecting the screening, and also solves the problem that the seedlings cannot be limited and are easy to shift and fall off when being washed by machine, thus realizing rapid and accurate screening of seedlings of *Hedysarum heterotropoides*.

[0004] This utility model also provides a high-quality seedling grading and screening device for *Hedysarum heterotropoides*, comprising: a machine body, a conveyor belt running through the machine body, a partition plate on the upper surface of the conveyor belt, a support column on the left side of the machine body, a support plate fixedly connected to the upper surface of the support column, a vibration motor fixedly connected to the upper surface of the support plate, a guide frame fixedly connected to the output end of the vibration motor, the guide frame being located above the partition plate, an electric telescopic rod fixedly connected inside the machine body, a C-shaped plate fixedly connected to the output end of the electric telescopic rod, a sponge block on the lower surface of the C-shaped plate, a cleaning component and a screening component on the machine body, and two robots inside the machine body, located on opposite sides of the conveyor belt. This structure facilitates the even distribution of *Hedysarum heterotropoides* between the partition plates of the conveyor belt, allowing for cleaning to remove soil before screening, resulting in a clearer appearance and easier screening. This improves the uniformity of subsequent seedling cultivation and transplanting, while also limiting the movement of the *Hedysarum heterotropoides* during cleaning.

[0005] According to the present invention, a high-quality seedling grading and screening device for *Gnaphalium affine* is provided. The cleaning component includes a fixed column, and a nozzle is provided on the lower surface of the fixed column. The nozzle is located above the conveyor belt and on the opposite side of the sponge block. The above structure facilitates the cleaning of *Gnaphalium affine*.

[0006] According to the present invention, a high-quality seedling grading and screening device for *Gnaphalium affine* is provided, wherein a connecting plate is fixedly connected to the body of the device, and a filter box is fixedly connected to the upper surface of the connecting plate. The filter box is provided with multiple layers of filter screens. Through the above structure, it is convenient to filter the soil.

[0007] According to the present invention, a high-quality seedling grading and screening device for *Gnaphalium affine* is provided, wherein a guide pipe is fixedly connected to the lower surface of the filter box, the guide pipe is connected to the filter box, the guide pipe passes through the connecting plate and extends to the bottom of the connecting plate, and a recycling box is provided below the connecting plate. Through the above structure, it is convenient to transport the filtered water to the recycling box for reuse.

[0008] According to the present invention, a high-quality seedling grading and screening device for *Gnaphalium affine* is provided, wherein a liquid pump is fixedly connected to the side surface of the machine body, the input end of the liquid pump is connected to a recycling tank through a connecting pipe, the output end of the liquid pump is fixedly connected to a conveying pipe, and the end of the conveying pipe away from the liquid pump is connected to a filter box. Through the above structure, it is convenient to extract water from the recycling tank and convey it to the nozzle for cleaning.

[0009] According to the present invention, a high-quality seedling grading and screening device for *Gnaphalium affine* is provided. The screening component includes a second fixed column, which is located on the side of the first fixed column away from the vibrating motor. The second fixed column is fixedly connected to the inner wall of the machine body. An industrial camera is provided on the lower surface of the second fixed column. With the above structure, it is convenient to observe the appearance of *Gnaphalium affine*, thereby facilitating screening.

[0010] According to the present invention, a high-quality seedling grading and screening device for *Hedysarum heterotropoides* is provided, wherein an air pump is fixedly connected to the side surface of the machine body, and an air jet pipe is fixedly connected to the output end of the air pump. The air jet pipe is located on the side of the fixed column two away from the fixed column one. A collection box is provided on the machine body, and the collection box is positioned opposite to the air jet pipe. With the above structure, it is convenient to blow away the *Hedysarum heterotropoides* that does not meet the appearance requirements from the conveyor belt and to collect the unqualified *Hedysarum heterotropoides*.

[0011] According to the present invention, a high-quality seedling grading and screening device for *Gnaphalium affine* is provided, wherein a control panel is fixedly connected to the side surface of the machine body, and the control panel is electrically connected to an air pump, a liquid pump, a vibration motor, a conveyor belt, an electric telescopic rod, a robot, a nozzle, and an industrial camera. The above structure facilitates the control of the above components.

[0012] Beneficial effects:

[0013] Compared with existing technologies, this high-quality seedling grading and screening device for *Hedysarum heterotropoides* (a type of purslane) uses an organic body, conveyor belt, separators, support columns, support plates, a vibrating motor, a guide frame, an electric telescopic rod, a C-shaped plate, a sponge block, a washing component, a screening component, and a robot. This facilitates the even distribution of *Hedysarum heterotropoides* between the separators on the conveyor belt, followed by washing to remove soil before screening. This results in a clearer appearance, making screening easier and improving the uniformity of subsequent seedling cultivation and transplanting. Simultaneously, it can limit the movement of the *Hedysarum heterotropoides* seedlings to prevent displacement during washing. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is an overall structural diagram of a grading and screening device for high-quality seedlings of *Gnaphalium affine* according to this utility model.

[0016] Figure 2 This is a rear view structural diagram of a grading and screening device for high-quality seedlings of *Gnaphalium affine* according to this utility model.

[0017] Figure 3 This is a cross-sectional view of the present invention: a grading and screening device for high-quality seedlings of *Gnaphalium affine*.

[0018] Figure 4 This is a longitudinal sectional view of the grading and screening device for high-quality seedlings of *Gnaphalium affine* according to this utility model.

[0019] Legend:

[0020] 1. Main body; 2. Control panel; 3. Collection box; 4. Recycling box; 5. Conveyor belt; 6. Divider plate; 7. Jet nozzle; 8. Air pump; 9. Support column; 10. Support plate; 11. Vibration motor; 12. Flow guide frame; 13. Liquid pump; 14. Delivery pipe; 15. Fixed column one; 16. Filter screen; 17. Filter box; 18. Connecting plate; 19. Flow guide pipe; 20. Electric telescopic rod; 21. C-shaped plate; 22. Sponge block; 23. Robot; 24. Nozzle; 25. Fixed column two. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4This utility model provides a grading and screening device for high-quality seedlings of *Gnaphalium affine*, comprising: a body 1, a conveyor belt 5 running through the body 1, a partition plate 6 on the upper surface of the conveyor belt 5, a support column 9 on the left side of the body 1, a support plate 10 fixedly connected to the upper surface of the support column 9, a vibration motor 11 fixedly connected to the upper surface of the support plate 10, a guide frame 12 fixedly connected to the output end of the vibration motor 11, the guide frame 12 being located above the partition plate 6, an electric telescopic rod 20 fixedly connected inside the body 1, a C-shaped plate 21 fixedly connected to the upper output end of the electric telescopic rod 20, and a sponge block 22 on the lower surface of the C-shaped plate 21.

[0023] Specifically, the vibration motor 11 works to vibrate the heart-shaped vegetables in the guide frame 12, so that they are evenly distributed and then fall between the partition plates 6 on the conveyor belt 5. When the electric telescopic rod 20 extends, it causes the C-shaped plate 21 to descend, so that the sponge block 22 fits against the heart-shaped vegetable seedlings and limits and fixes them.

[0024] The machine body 1 is equipped with a cleaning component and a screening component. The cleaning component includes a fixed column 15, with a nozzle 24 on the lower surface of the fixed column 15. The nozzle 24 is located above the conveyor belt 5 and opposite the sponge block 22. A connecting plate 18 is fixedly connected inside the machine body 1. A filter box 17 is fixedly connected to the upper surface of the connecting plate 18. The filter box 17 contains multiple layers of filter screens 16. A guide pipe 19 is fixedly connected to the lower surface of the filter box 17 and communicates with the filter box 17. The guide pipe 19 passes through the connecting plate 18 and extends to the bottom of the connecting plate 18. A recovery box 4 is located below the connecting plate 18. A liquid pump 13 is fixedly connected to the side surface of the machine body 1. The input end of the liquid pump 13 is connected to the recovery box 4 through a connecting pipe. A delivery pipe 14 is fixedly connected to the output end of the liquid pump 13. The end of the delivery pipe 14 away from the liquid pump 13 is connected to the filter box 1. The 7-connected screening components include a second fixed column 25, which is located on the side of the first fixed column 15 away from the vibration motor 11. The second fixed column 25 is fixedly connected to the inner wall of the machine body 1. An industrial camera is installed on the lower surface of the second fixed column 25. An air pump 8 is fixedly connected to the side surface of the machine body 1. An air jet pipe 7 is fixedly connected to the output end of the air pump 8. The air jet pipe 7 is located on the side of the second fixed column 25 away from the first fixed column 15. A collection box 3 is installed on the machine body 1. The collection box 3 and the air jet pipe 7 are positioned opposite each other. Two robots 23 are installed inside the machine body 1 and are located on both sides of the conveyor belt 5 respectively. A control panel 2 is fixedly connected to the side surface of the machine body 1. The control panel 2 is electrically connected to the air pump 8, the liquid pump 13, the vibration motor 11, the conveyor belt 5, the electric telescopic rod 20, the robot 23, the nozzle 24, and the industrial camera.

[0025] Specifically, robot 23 separates and blocks the seaweed on the guide frame 12, causing a large amount of seaweed to fall between the separator plates 6 and move with the conveyor belt 5. When it moves to the cleaning area, it is cleaned by water sprayed from the nozzle 24. The cleaned water falls into the filter box 17, is filtered by the filter screen 16, and then falls from the guide rod 19 into the recycling box 4. The liquid pump 13 then extracts the water and transports it from the delivery pipe 14 to the nozzle 24 for cleaning, realizing circulation. After cleaning, the appearance of the seaweed is observed by the industrial camera on the fixed column 25. When unqualified seaweed is found, since the conveyor belt 5 moves intermittently, the unqualified seaweed moves to the air jet pipe 7, the air pump 8 works, and air is sprayed out through the air jet pipe 7 to blow the unqualified seaweed into the collection box 3 for collection. The control panel 2 controls the electronic components.

[0026] Working principle: During use, the heart-shaped vegetables are evenly distributed on the guide frame 12 by the vibration of the vibration motor 11. They are then separated by rubber blocks on the robot 23, allowing them to fall between two separating plates 6 on the conveyor belt 5. The drive motor of the conveyor belt 5 on the control panel 2 controls the intermittent movement of the conveyor belt 5. When it reaches the cleaning area, the electric telescopic rod 20 lowers the C-shaped plate 21, causing the sponge block 22 to limit and fix the heart-shaped vegetables, preventing damage to the seedlings. The liquid pump 13 then operates. Water is drawn from the recycling bin 4 and sprayed out through the nozzle 24 to clean the *Hedysarum heterotropoides* seedlings. The cleaned water falls into the filter box 17, is filtered by the filter screen 16, and then falls into the recycling bin 4 through the guide pipe 19 for reuse. When the cleaning is finished, the electric telescopic rod 20 rises, causing the sponge block 22 to rise and release the *Hedysarum heterotropoides* seedlings. Then, through observation by an industrial camera, if the appearance of the *Hedysarum heterotropoides* seedlings is not up to standard when it moves to the jet pipe 7, the air pump 8 works, and the air sprayed through the jet pipe 7 blows the *Hedysarum heterotropoides* seedlings into the collection box 3.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A grading and screening device for high-quality seedlings of *Gnaphalium affine*, characterized in that, include: The machine body (1) is provided with a conveyor belt (5) running through it. A partition plate (6) is provided on the upper surface of the conveyor belt (5). A support column (9) is provided on the left side of the machine body (1). A support plate (10) is fixedly connected to the upper surface of the support column (9). A vibration motor (11) is fixedly connected to the upper surface of the support plate (10). A guide frame (12) is fixedly connected to the output end of the vibration motor (11). The guide frame (12) is located above the partition plate (6). An electric telescopic rod (20) is fixedly connected inside the machine body (1). A C-shaped plate (21) is fixedly connected to the output end of the electric telescopic rod (20). A sponge block (22) is provided on the lower surface of the C-shaped plate (21). A cleaning component and a screening component are provided on the machine body (1). A robot (23) is provided inside the machine body (1). There are two robots (23), which are located on both sides of the conveyor belt (5).

2. The grading and screening device for high-quality seedlings of *Gnaphalium affine* according to claim 1, characterized in that, The cleaning assembly includes a fixed column (15), and a nozzle (24) is provided on the lower surface of the fixed column (15). The nozzle (24) is located above the conveyor belt (5) and on the opposite side of the sponge block (22).

3. The grading and screening device for high-quality seedlings of *Gnaphalium affine* according to claim 1, characterized in that, A connecting plate (18) is fixedly connected inside the body (1), and a filter box (17) is fixedly connected to the upper surface of the connecting plate (18). The filter box (17) is provided with multiple layers of filter screens (16).

4. The grading and screening device for high-quality seedlings of *Gnaphalium affine* according to claim 3, characterized in that, A guide pipe (19) is fixedly connected to the lower surface of the filter box (17). The guide pipe (19) is connected to the filter box (17). The guide pipe (19) passes through the connecting plate (18) and extends to the bottom of the connecting plate (18). A recycling box (4) is provided below the connecting plate (18).

5. The grading and screening device for high-quality seedlings of *Gnaphalium affine* according to claim 1, characterized in that, A liquid pump (13) is fixedly connected to the side surface of the body (1). The input end of the liquid pump (13) is connected to the recycling box (4) through a connecting pipe. The output end of the liquid pump (13) is fixedly connected to a delivery pipe (14). The end of the delivery pipe (14) away from the liquid pump (13) is connected to the filter box (17).

6. The grading and screening device for high-quality seedlings of *Gnaphalium affine* according to claim 1, characterized in that, The screening component includes a second fixed column (25), which is located on the side of the first fixed column (15) away from the vibration motor (11). The second fixed column (25) is fixedly connected to the inner wall of the machine body (1), and an industrial camera is provided on the lower surface of the second fixed column (25).

7. The grading and screening device for high-quality seedlings of *Gnaphalium affine* according to claim 1, characterized in that, An air pump (8) is fixedly connected to the side surface of the body (1), and an air jet pipe (7) is fixedly connected to the output end of the air pump (8). The air jet pipe (7) is located on the side of the fixed column two (25) away from the fixed column one (15). A collection box (3) is provided on the body (1), and the collection box (3) is positioned opposite to the air jet pipe (7).

8. The grading and screening device for high-quality seedlings of *Gnaphalium affine* according to claim 1, characterized in that, The control panel (2) is fixedly connected to the side surface of the machine body (1). The control panel (2) is electrically connected to the air pump (8), liquid pump (13), vibration motor (11), conveyor belt (5), electric telescopic rod (20), robot (23), nozzle (24) and industrial camera.