Rice seed sorting mechanism
By disturbing the brine flow through compressed air combined with the collection plate and sweeping brush design, the problems of low sorting efficiency and waste of resources are solved, and the thorough removal of shriveled seeds and collection of qualified seeds are achieved, and the seed purity and germination rate are improved.
Patent Information
- Application Number
- CN202422283293.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The existing rice seed sorting method is inefficient, it is difficult to completely separate shriveled seeds, and qualified seeds are easily missed, resulting in waste of resources.
Compressed air disturbs the brine flow, combined with brine sorting, the flotation of shriveled seeds and the collection of qualified seeds are achieved through the design of collection plates and cleaning brushes, and the collection of qualified seeds is avoided.
Improve the sorting efficiency, ensure that the shriveled seeds are completely removed, reduce waste of qualified seeds, and improve seed purity and germination rate.
Smart Images
Figure CN223197165U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of rice seed selection, in particular to a rice seed sorting mechanism. Background Art
[0002] Rice seed sorting is a crucial step in ensuring rice production quality and yield. The sorting process eliminates unqualified seeds, ensuring germination rates and selecting seeds with good germination potential, improving uniformity of seedling emergence in the field. It also enhances seed purity, ensuring the stability of the rice varieties being grown and reducing the presence of mixed varieties.
[0003] Currently, rice seed sorting methods mainly include appearance screening and gravity sorting. Gravity sorting uses the difference in sedimentation speed of seeds of different qualities in a specific medium to separate them. For example, salt water or air separation can be used to separate high-quality seeds from low-quality seeds. However, using salt water for gravity sorting has the following drawbacks:
[0004] Low sorting efficiency: Traditional static gravity sorting relies on the natural sedimentation or floating of seeds in salt water. Shriveled seeds may not float effectively due to being pressed by other seeds, resulting in incomplete sorting.
[0005] Residual seeds are easily overlooked: some qualified seeds may sink to the bottom of the storage container instead of the sieve when disturbed. If there is no cleaning device, they are easily missed, resulting in waste of resources. Summary of the Invention
[0006] In order to solve the technical problem of rice seed sorting, the utility model provides a rice seed sorting mechanism.
[0007] The utility model adopts the following technical solution: a rice seed sorting mechanism, comprising a base, a sorting box fixedly connected to the base, a water inlet pipe and a water outlet pipe connected to the sorting box, and the sorting box is further provided with:
[0008] An air inlet pipe is provided at the inner bottom of the sorting box, an air outlet is provided between the sorting box and the base, and one end of the air inlet pipe is connected to the air outlet;
[0009] A collecting plate is slidably installed in the sorting box, and is used to collect unqualified rice seeds. A driving shaft is also provided above the collecting plate, and the driving shaft is used to drive the collecting plate to move back and forth.
[0010] As a further improvement of the above solution, a storage basket is further provided in the sorting box. The storage basket is used to load rice seeds. The storage basket is woven from a metal mesh and has an open top.
[0011] Using this technical solution, a certain concentration of salt water is first added to the sorting box. Rice seeds are then placed in a storage basket, which is then placed inside the sorting box while compressed air is introduced. The compressed air stirs the water, which, combined with the salt water, causes the light, shrunken seeds to float. Unqualified seeds are then collected on a collection plate. Qualified seeds sink into the storage basket after the air supply is stopped. The basket can then be removed.
[0012] As a further improvement of the above solution, a drive shaft is rotatably installed on one side of the sorting box. The drive shaft is a threaded shaft and one end is connected to a motor. A guide shaft is also installed below the drive shaft, and a movable frame is provided on the outer side of the drive shaft and the guide shaft.
[0013] Through the above technical solution, when the motor drives the driving shaft to rotate forward and reverse, it can drive the movable frame to move back and forth along the direction of the guide shaft.
[0014] As a further improvement of the above solution, a telescopic rod is fixedly connected to the collection plate, and the upper end of the telescopic rod is fixedly connected to the movable frame. At the same time, guide wheels are rotatably connected to both sides of the collection plate, and a guide groove is opened on the inner wall of the sorting box, and the guide wheel is slidably installed in the guide groove.
[0015] With the above technical solution, since one end of the guide groove is higher and the guide wheel can only move within the guide groove, the guide wheel will rise vertically along the track of the guide groove as the collecting plate moves horizontally, thereby driving the collecting plate to move vertically.
[0016] As a further improvement of the above solution, a waste trough is fixedly connected to one side of the sorting box, a grid plate is installed in the waste trough, and a reflux hole is opened on the side wall of the sorting box, and the waste trough is connected to the sorting box through the reflux hole.
[0017] Through the above technical solution, the reflux hole can re-introduce the salt water dripping from the seeds into the sorting box, which not only prevents the salt water from dripping everywhere and polluting the working environment, but also avoids waste.
[0018] As a further improvement of the above solution, a downwardly recessed collecting trough is further provided at one end of the inner bottom of the sorting box, and a cleaning brush is further provided inside the sorting box and on one side of the collecting trough. A connecting rod is fixedly connected to the cleaning brush, and a spring rod is fixedly connected to the side wall of the sorting box, and the connecting rod is also sleeved on the spring rod.
[0019] As a further improvement of the above solution, a push plate is fixedly connected to the bottom surface of the movable frame, and the top height of the connecting rod is higher than the lowest point of the push plate.
[0020] Through the above technical solution, during the movement of the push plate, it will contact the connecting rod and push the connecting rod to move, and the spring rod provides a guiding effect on the movement of the connecting rod and the cleaning brush.
[0021] Compared with the prior art, the beneficial effects of the present invention are:
[0022] 1. The utility model introduces compressed air into the bottom of the sorting box. The compressed air disturbs the water flow, stirring the rice in the storage basket. Combined with the salt water in the sorting box, the shriveled and light seeds float up, and the unqualified seeds are collected and removed through the collection plate.
[0023] 2. The utility model not only drives the collecting plate to move by the movable frame, but also cooperates with the spring rod and the push plate to control the reciprocating movement of the cleaning brush to collect some scattered qualified seeds to avoid waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0025] Figure 2 This is a cross-sectional view of the overall structure of the utility model;
[0026] Figure 3 This is a schematic diagram of the connection relationship between the collecting plate, the moving plate and the driving shaft of the utility model;
[0027] Figure 4 This is a schematic diagram of the internal structure of the sorting box of the present utility model.
[0028] Explanation of main symbols: 1. Base; 2. Sorting box; 3. Air inlet pipe; 4. Air outlet; 5. Storage basket; 6. Collection plate; 7. Drive shaft; 8. Guide shaft; 9. Mobile frame; 10. Telescopic rod; 11. Guide wheel; 12. Guide groove; 13. Waste trough; 14. Grid plate; 15. Return hole; 16. Collection trough; 17. Cleaning brush; 18. Connecting rod; 19. Push plate; 20. Spring rod. DETAILED DESCRIPTION
[0029] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0030] Please combine Figure 1-Figure 4The rice seed sorting mechanism of this embodiment includes a base 1, to which is fixedly connected a sorting box 2 for holding salt water. When rice seeds are placed in salt water of a certain concentration, high-quality, plump seeds sink, while poor-quality, shrunken seeds float. Therefore, a water inlet and outlet pipes (not shown) are installed on the sorting box 2 to add and remove salt water.
[0031] To facilitate seed placement and retrieval, a storage basket 5 is provided. This basket is woven from wire into a basket-like shape and has an open top. Seeds are placed in the basket, which is then placed entirely in the sorting box 2, ensuring the salt water level covers the basket. This completely submerges the seeds in the basket, preventing any shrunken or poor-quality seeds from floating.
[0032] Because a certain amount of seeds are placed in the storage basket 5, some are pressed to the bottom, making it difficult for even shrunken seeds to float. To address this, several air outlets 4 are provided at the bottom of the sorting box 2. An air inlet pipe 3 is fixedly mounted between the sorting box 2 and the base 1. Several branch pipes (not labeled) are connected to the air inlet pipe 3, the other ends of which are connected to the air outlets 4. In actual use, a metal mesh can be installed at the air outlets 4 to prevent rice seeds from entering the air inlet pipe 3.
[0033] Therefore, during use, after the storage basket 5 is placed in the sorting box 2, compressed air is introduced into the air inlet pipe 3. After passing through the air inlet pipe 3, the compressed air is blown out from the air outlet 4. The impact of the airflow causes the water to stir and become turbulent. After the salt water is stirred, it stirs the rice seeds in the storage basket 5. After the high-pressure airflow continues to pass through, the rice seeds are stirred by the water flow, causing shriveled and poor-quality seeds to float. Good-quality seeds will still fall after the compressed air is stopped. This can prevent shriveled and poor-quality seeds from being pressed down, resulting in incomplete sorting.
[0034] Since most of the good quality seeds will still fall into the storage basket 5 after the compressed air is stopped, the storage basket 5 can be directly removed, while the unqualified, shrunken seeds will float on the water surface. In order to facilitate the salvage of the unqualified seeds, a collection plate 6 is provided. The side of the collection plate 6 is L-shaped and consists of a horizontal plate and a vertical plate. When in use, it is necessary to ensure that the horizontal plate is below the liquid level (unqualified seeds).
[0035] In addition, since the unqualified seeds are scattered, they need to be collected. Therefore, a drive shaft 7 is also provided. The drive shaft 7 is rotatably mounted on one side of the sorting box 2. The drive shaft 7 is a threaded shaft and one end of the drive shaft is connected to a motor. In addition, a guide shaft 8 is installed below the drive shaft 7. A movable frame 9 is sleeved on the outside of the drive shaft 7 and the guide shaft 8. When the motor drives the drive shaft 7 to rotate, the movable frame 9 will move along the axis direction of the drive shaft 7. A telescopic rod 10 is fixedly mounted on the movable frame 9. The lower end of the telescopic rod 10 is fixedly connected to the above-mentioned collection plate 6.
[0036] As described above, in order to collect unqualified seeds, the horizontal part of the collecting plate 6 is located below the liquid level. When the above-mentioned movable frame 9 drives the collecting plate 6 to move, the seeds are gathered together. In order to facilitate the removal. Therefore, a guide groove 12 is opened on the inner wall of the sorting box 2, and one end of the guide groove 12 is higher. In addition, a guide wheel 11 is rotatably installed on the side of the collecting plate 6, and the guide wheel 11 is slidably installed in the guide groove 12. Therefore, in summary, when the movable frame 9 moves, it will drive the collecting plate 6 to move together through the telescopic rod 10. The guide wheel 11 moves in the guide groove 12 all the time. Following the trajectory of the guide groove 12, the guide wheel 11 gradually rises, driving the collecting plate 6 to gradually rise. The collecting plate 6 gradually rises and moves out of the water. During this process, the spring telescopic rod 10 shortens. The movable frame 9 does not change in the vertical direction.
[0037] Once the collection plate 6 is completely removed from the water, it's easy to remove the unqualified seeds from the collection plate 6. To temporarily collect the unqualified seeds and facilitate subsequent centralized processing, a waste trough 13 is fixedly connected to one side of the sorting box 2. A mesh panel 14 is laid within the waste trough 13, and a reflux hole 15 is also provided on the side wall of the sorting box 2. When unqualified seeds are removed from the collection plate 6 and placed on the mesh panel 14 of the waste trough 13, the salt water on the seeds will drip down and continue to flow back into the sorting box 2 through the reflux hole 15. This prevents the salt water from dripping everywhere and polluting the working environment, and also avoids waste.
[0038] Furthermore, as described above, the airflow drives the water flow, stirring the seeds in the storage basket 5 and causing unqualified seeds to float. However, during this process, some qualified seeds may float due to the water flow disturbance and then sink again. There is no guarantee that all qualified seeds will sink in the storage basket 5; they may sink outside the storage basket 5 and fall to the bottom of the sorting box 2. To avoid waste, these seeds also need to be collected.
[0039] Therefore, a downwardly recessed collecting trough 16 is also provided at one end of the sorting box 2. In addition, a cleaning brush 17 is provided for cleaning the bottom of the sorting box 2. The cleaning brush 17 can sweep the seeds outside the falling storage basket 5 into the collecting trough 16 for centralized collection.
[0040] A connecting rod 18 is fixedly connected to the cleaning brush 17. To facilitate automatic cleaning, a groove is formed in the side wall of the sorting box 2. Two spring rods 20 are fixedly mounted in the groove, one above the other. The connecting rod 18 has a hole through which the two spring rods 20 extend.
[0041] Furthermore, a push plate 19 is fixedly connected to the bottom of the movable frame 9. The lowest point of the push plate 19 is lower than the highest point of the connecting rod 18. Specifically, as the push plate 19 moves with the movable frame 9 toward the waste trough 13 (collection trough 16), it contacts the connecting rod 18. This pushes the connecting rod 18, compressing the spring on the spring rod 20, which also acts as a limiter and guide. As the connecting rod 18 drives the cleaning brush 17, it sweeps seeds that have settled at the bottom of the sorting bin 2 into the collection trough 16. When the movable frame 9 returns the push plate 19 to its original position, the cleaning brush 17 returns to its original position due to the spring on the spring rod 20.
[0042] In addition, how to collect seeds in the collecting tank 16, so its quantity is less. Can be finished after sorting, concentrate on collecting after discharging salt solution, or place hanging basket (not shown) in the collecting tank 16, take out hanging basket and can collect seeds.
[0043] The implementation process and principle of a rice seed sorting mechanism in the embodiment of the present application are as follows:
[0044] (1) A certain concentration of salt water is passed into the sorting box 2, and the salt water height is higher than the water part of the collecting plate 6. The seeds are placed in the storage basket 5, and the storage basket 5 is placed in the sorting box 2, away from one end of the collecting tank 16.
[0045] (2) Compressed air is passed through the air inlet pipe 3. After entering the sorting box 2, it disturbs the water flow, stirring the seeds in the storage basket 5. Therefore, combined with the salt water, the qualified seeds in the storage basket 5 are separated from the shrunken, low-quality seeds. After the compressed air is stopped, the high-quality seeds continue to sink and fall into the storage basket 5, while the shrunken, low-quality seeds float on the surface of the salt water.
[0046] (3): The motor drives the driving shaft 7 to rotate, and controls the moving frame 9 to move along the axis of the driving shaft 7. The moving frame 9 drives the push plate 19 and the collecting plate 6 to move together;
[0047] The horizontal portion of the collecting plate 6 is located below the liquid level, gathering floating seeds as it moves from one end of the sorting box 2 to the other. Furthermore, as the collecting plate 6 moves, its side guide wheels 11 rotate and advance within guide grooves 12. Because the guide grooves 12 are higher near the end of the waste trough 13, the collecting plate 6 gradually rises as it moves toward the waste trough 13, shortening the telescopic rods 10. The horizontal movement of the collecting plate 6 collects floating seeds. When the collecting plate 6 moves upward and out of the water, it pulls the seeds with it, allowing unqualified seeds to be easily placed on the grid plate 14 in the waste trough 13. The salt water that drips from the seeds then flows back into the sorting box 2 through the reflux holes 15. This prevents salt water from dripping everywhere and contaminating the working environment, while also preventing waste.
[0048] The movable frame 9 will also drive the push plate 19 to move together. When the push plate 19 moves, it will contact the connecting rod 18, and will drive the connecting rod 18 and the cleaning brush 17 to move together. The cleaning brush 17 will sweep the qualified seeds scattered outside the storage basket 5 into the collecting trough 16 for collection to avoid waste.
[0049] (4) Introduce compressed air into the sorting box 2 for a period of time, then let it stand for a period of time, and wait for qualified seeds to sink into the storage basket 5. The storage basket 5 can be taken out directly.
[0050] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.
Claims
1. A rice seed sorting mechanism, comprising a base, to which a sorting box is fixedly connected, characterized in that: The sorting box is connected to a water inlet pipe and a water outlet pipe, and is further provided with: An air inlet pipe is provided at the inner bottom of the sorting box, an air outlet is provided between the sorting box and the base, and one end of the air inlet pipe is connected to the air outlet; A collecting plate is slidably installed in the sorting box, and is used to collect unqualified rice seeds. A driving shaft is also provided above the collecting plate, and the driving shaft is used to drive the collecting plate to move back and forth.
2. The rice seed sorting mechanism according to claim 1, wherein: A storage basket is also provided in the sorting box. The storage basket is used to load rice seeds. The storage basket is made of a metal mesh and has an open top.
3. The rice seed sorting mechanism according to claim 1, wherein: A driving shaft is rotatably installed on one side of the sorting box. The driving shaft is a threaded shaft, and one end is connected to a motor. A guide shaft is also installed below the driving shaft, and a movable frame is sleeved on the outer side of the driving shaft and the guide shaft.
4. The rice seed sorting mechanism according to claim 3, wherein: The collecting plate is fixedly connected with a telescopic rod, the upper end of the telescopic rod is fixedly connected to the movable frame, and guide wheels are rotatably connected to both sides of the collecting plate. A guide groove is provided on the inner wall of the sorting box, and the guide wheel is slidably installed in the guide groove.
5. The rice seed sorting mechanism according to claim 1, wherein: A waste trough is fixedly connected to one side of the sorting box, a grid plate is installed in the waste trough, and a reflux hole is opened on the side wall of the sorting box, and the waste trough is connected to the sorting box through the reflux hole.
6. The rice seed sorting mechanism according to claim 3, wherein: A downwardly recessed collecting trough is provided at one end of the inner bottom of the sorting box, and a cleaning brush is provided inside the sorting box and on one side of the collecting trough. A connecting rod is fixedly connected to the cleaning brush, and a spring rod is fixedly connected to the side wall of the sorting box, and the connecting rod is also sleeved on the spring rod.
7. The rice seed sorting mechanism according to claim 6, characterized in that: A push plate is fixedly connected to the bottom surface of the movable frame, and the top height of the connecting rod is higher than the lowest point of the push plate.