Seed screening device for garden breeding

Abstract

The seed screening device for garden breeding is characterized in that a mounting frame is mounted at the top ends of supporting legs, a driving motor is mounted on one side of the mounting frame, a screening assembly is mounted in the mounting frame and comprises a conveying groove, and the conveying groove is formed in the mounting frame; a vibration motor arranged at the bottom end of the mounting frame drives the conveying groove to move in the left-right horizontal direction. Seeds roll along the arc surface and are gathered and collided through the split-flow design of the arc-shaped screening net and the seed bin, and efficient stripping of the seeds from impurities and seed shells is achieved in combination with left-right shaking driven by the vibration motor; the distance between the movable pushing piece and the positioning piece is dynamically reduced along with the screening process, the seed impact frequency is gradually increased, gradient sorting of strengthened screening from large space to small space is formed, the screening precision of the seeds with wings, villus and irregular shapes is remarkably improved, and blocking and screening leakage are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural seed treatment, and particularly relates to a seed screening device for garden breeding. Background Art

[0002] In garden seedling cultivation and ecological restoration projects, the seed purity and grading accuracy directly affect the seedling emergence rate and plant robustness. Existing general screening equipment, such as the vibrating screening device with the publication number CN219112157U, is mostly designed based on industrial screening principles and lacks optimization for the biological characteristics of agricultural seeds. For example, it cannot effectively process seeds with winged, villous and other easily agglomerated forms. Secondly, in a high-humidity environment, it is easy to cause sticky seeds to adhere to the seed shells, affecting the germination rate. In summary, traditional industrial screening devices are difficult to be applicable to seed screening, and in the structural design of the fixed screen of agricultural mechanical screening devices, it is difficult to balance the protection of seed integrity and the complete stripping of impurities, which does not meet the requirements of agricultural production for the vitality of seed sources. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects existing in the prior art, and the present invention proposes a seed screening device for garden breeding.

[0004] To solve the above technical problem, the technical solution adopted by the present invention is: a seed screening device for garden breeding, wherein the top end of the support leg is provided with a mounting frame, one side of the mounting frame is provided with a driving motor, and a screening component is installed inside the mounting frame. The screening component includes a conveying trough, the conveying trough is arranged inside the mounting frame, and the conveying trough is driven by a vibration motor arranged at the bottom end of the mounting frame to move horizontally left and right. A screening net is embedded inside the conveying trough, and leakage holes are opened at the bottom end of the screening net. The output end of the driving motor is sleeved with an auxiliary component. The auxiliary component includes a transmission belt, and a transmission screw is embedded inside the transmission belt. The transmission screw is connected to the output end of the driving motor through the transmission belt. A movable push piece is sleeved on the surface of the transmission screw, the movable push piece is embedded inside the screening net, and a sliding connection is maintained between the movable push piece and the screening net. The other side of the screening net is fixedly connected with a positioning piece, the positioning piece and the movable push piece have the same specifications, and the top end of the positioning piece is fixedly connected with a dust removal pipe. An air outlet is opened at the bottom surface of the dust removal pipe, and a seed bin is movably connected to the top end of the dust removal pipe. The seed bin is used for conveying seeds between the positioning piece and the movable push piece.

[0005] Further, the end of the output end of the driving motor is connected with a transmission rod, the end of the transmission rod is connected with a turning piece, the outer surface of the turning piece is attached to the inner surface of the conveying trough, and the turning piece is driven by the driving motor to perform circular motion.

[0006] Further, one side of the movable pushing piece is connected with a movable groove block, the movable groove block is embedded inside the air outlet, the movable groove block is slidably connected with the air outlet, and the movable groove block is used to control the opening size of the air outlet.

[0007] Further, the end of the conveying trough is connected with a collection bin, and the collection bin is used to wrap the turning piece.

[0008] Further, an air inlet pipe is embedded inside the turning piece, one end of the air inlet pipe is connected to a blower, and the end of the impurity removal pipe is communicated with the inside of the collection bin.

[0009] Further, both the screening mesh and the conveying trough are arranged in an arc shape, and a channel for impurity discharge is left between the screening mesh and the conveying trough.

[0010] Further, there are two discharge ports at the discharge port of the seed bin, and the two discharge ports are respectively embedded between the impurity removal pipe and the screening mesh. The seeds discharged from the discharge ports are conveyed between the positioning piece and the movable pushing piece and screened by the screening mesh.

[0011] Further, the driving screw rotates to drive the movable pushing piece to move, and during the movement, it pushes the seed bin to slide horizontally along the impurity removal pipe.

[0012] Further, a knocking component is connected to the bottom end of the screening mesh. The knocking component includes a sliding rod. The bottom end of the screening mesh is fixedly connected with the sliding rod. A scraping piece is sleeved on the outer surface of the sliding rod, and knocking balls are arranged on the inner wall of the scraping piece.

[0013] Further, the knocking balls are arranged in a spherical shape, the knocking balls are rotatably connected with the scraping piece, the knocking balls can move freely on the inner wall of the scraping piece, and the knocking balls are matched with the leakage holes.

[0014] Compared with the prior art, the beneficial effects of the present invention include: through the linkage design of seed morphology screening parameters, it solves the unique problem of seed source treatment in garden breeding. Through the dynamic contraction of the screening space, the composite motion mode and the intelligent purging adjustment, it effectively solves the problems of insufficient collision or accumulation caused by the fixed screen area of the traditional screening device. The arc-shaped screening mesh and the seed bin shunt design are used to make the seeds roll and converge along the arc surface and collide. Combined with the left-right shaking driven by the vibration motor, the efficient separation of seeds from impurities and seed shells is realized; the distance between the movable pushing piece and the positioning piece decreases dynamically during the screening process, gradually increasing the seed impact frequency, forming a gradient sorting from large-space dispersion to small-space enhanced screening, significantly improving the screening accuracy of seeds with wings, fluff and irregular shapes, avoiding blockage and missed screening. Through such a screening method, the germination rate of seeds is increased and the protection of the seed embryo is enhanced, improving the seedling survival rate.

[0015] The beneficial effects of the present invention also include: adaptively adjusting the size and wind force of the air outlet according to spatial changes, with strong wind at the initial stage to quickly remove large-volume impurities and disperse seeds, and weak wind at the later stage to finely blow and sweep away fine impurities and protect the fragile seed embryos; the knocking assembly, through the linkage of the scraping piece and the knocking ball, clears the blockage of the leakage holes in real time and vibrates the sieve mesh, further improving the screening efficiency and continuity. It provides an efficient and accurate solution for seed source treatment in garden breeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The disclosure of the present invention will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them: Figure 1 FIG. 1 schematically shows a three-dimensional structural view of a seed screening device for garden breeding according to an embodiment of the present invention; Figure 2 FIG. 2 schematically shows a structural view of the seed material bin and the air inlet pipe of a seed screening device for garden breeding according to an embodiment of the present invention; Figure 3 FIG. 3 schematically shows a structural view of the conveying trough and the positioning piece of a seed screening device for garden breeding according to an embodiment of the present invention; Figure 4 FIG. 4 schematically shows a structural view of the screening mesh and the impurity removal pipe of a seed screening device for garden breeding according to an embodiment of the present invention; Figure 5 FIG. 5 schematically shows a structural view of the impurity removal pipe and the collection bin of a seed screening device for garden breeding according to an embodiment of the present invention; Figure 6 FIG. 6 schematically shows a structural view of the conveying trough and the screening mesh of a seed screening device for garden breeding according to an embodiment of the present invention; Figure 7 FIG. 7 schematically shows a structural view of the screening mesh and the transmission screw of a seed screening device for garden breeding according to an embodiment of the present invention; Figure 8 FIG. 8 schematically shows a structural view of the air inlet pipe and the transmission belt of a seed screening device for garden breeding according to an embodiment of the present invention; Figure 9 FIG. 9 schematically shows a structural view of the sliding rod and the scraping piece of a seed screening device for garden breeding according to an embodiment of the present invention.

[0017] In the figure: 11, support leg; 12, mounting frame; 13, drive motor; 14, seed bin; 15, air inlet pipe; 2, screening assembly; 21, screening mesh; 22, impurity removal pipe; 23, air outlet; 24, transmission screw; 25, conveying trough; 26, positioning piece; 27, movable pushing piece; 28, leakage hole; 29, movable groove block; 3, auxiliary assembly; 31, transmission belt; 32, transmission rod; 33, flipping piece; 34, collection bin; 4, knocking assembly; 41, sliding rod; 42, scraping piece; 43, knocking ball. Specific implementation manner

[0018] It is easy to understand that according to the technical solution of the present invention, without changing the essence of the present invention, those of ordinary skill in the art can propose various structural ways and implementation ways that can be mutually replaced. Therefore, the following specific implementation manners and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or regarded as a limitation or restriction on the technical solution of the present invention.

[0019] According to an embodiment of the present invention in combination with Figures 1-9 Shown: A seed screening device for garden breeding, the top of the support leg 11 is provided with a mounting frame 12, one side of the mounting frame 12 is provided with a drive motor 13. During the screening process of the seeds, a screening assembly 2 is installed inside the mounting frame 12. The screening assembly 2 includes a conveying trough 25. The conveying trough 25 is arranged inside the mounting frame 12. The conveying trough 25 is driven to move horizontally left and right by a vibration motor arranged at the bottom of the mounting frame 12. A screening mesh 21 is embedded inside the conveying trough 25. Both the screening mesh 21 and the conveying trough 25 are arranged in an arc shape, and a channel for impurities to be discharged is left between the screening mesh 21 and the conveying trough 25.

[0020] The vibration of the vibration motor drives the mounting frame 12 to shake left and right. In addition, the conveying trough 25 installed at the top of the mounting frame 12 and the screening mesh 21 installed inside the conveying trough 25 also make corresponding movement trajectories. When the seeds are placed on the screening mesh 21, the vibration of the vibration motor causes the seeds to shake left and right inside the screening mesh 21. In order to increase the amplitude of the shaking, the large swing of the vibration motor can make the seeds roll on the inner wall of the screening mesh 21. During the rolling, the impurities contained in the seeds are filtered and screened out through the leakage holes 28 provided on the screening mesh 21.

[0021] However, all existing screening devices perform screening treatment in the above manner. The vibration of the vibration motor drives the movement of the seeds, thereby separating impurities. However, such a setting has some problems. For example, if the screen area of the screening device is relatively large, the seeds are relatively loosely distributed inside, and in this way, the collision probability between seeds is reduced. For example, when screening shelled seeds, the screening effect of this screening method will be relatively poor. However, when the screen area is small, the number of collisions between seeds increases, but the seeds will accumulate to a large extent, and there is no interaction between the seeds in the lower layer and the upper layer, and the screening effect will also deteriorate. In order to improve the screening effect, this problem is solved by setting the screening component 2, the auxiliary component 3 and the knocking component 4. The specific operation is as follows: First of all, during screening, the seeds will be pre-stored inside the seed bin 14. The seed bin 14 diverts the seeds and divides them into two parts, and then they fall into the inside of the screening mesh 21 at the same time. Since the inner wall of the screening mesh 21 is designed in an arc shape, the seeds will fall onto the arc surface of the inner wall of the screening mesh 21, and the seeds will finally fall to the bottom end of the screening mesh 21 along the arc surface. Through the diversion of the seed bin 14, when the seeds roll along the inner walls on both sides of the screening mesh 21 and finally converge to the lowest point, collisions will occur between the seeds. For the seeds after diversion, the way of collision plus rolling and feeding can improve the efficiency of removing impurities, and some seed shells can also fall off using this trend.

[0022] Subsequently, the vibration motor at the bottom of the mounting frame 12 starts to work. The left - right shaking of the vibration motor causes the seeds to roll on the screening mesh 21. During the rolling, the movement space of the seeds is restricted by the positioning piece 26 and the movable pushing piece 27. As the screening time progresses, the driving motor 13 starts to work. When the driving motor 13 starts to rotate, it drives the transmission belt 31 to rotate. When the transmission belt 31 starts to rotate, it drives the transmission screw 24 to rotate. When the transmission screw 24 rotates, it drives the movable pushing piece 27 to move. When the movable pushing piece 27 translates towards the side of the positioning piece 26, the distance between the movable pushing piece 27 and the positioning piece 26 continuously decreases, thus reducing the movement space of the seeds. As the movement space continuously decreases, the collision degree between the seeds becomes more and more intense, and the impact frequency between the seeds and the positioning piece 26 and the movable pushing piece 27 is also increased. Through the screening method from a large space to a small space, the screening effect is further improved. The gradient separation of seed particle sizes is realized through the gradual contraction of the space, effectively solving the problems of blockage and missed screening of seeds with wings, fluff, and irregular shapes by traditional fixed sieves. With the intelligent regulation of the impact frequency with the reduction of space, the protection of fragile seeds and the peeling of hard impurities are taken into account, significantly improving the seed purity and integrity. The composite motion mode breaks the material agglomeration and screening dead - ends, improves the processing continuity and efficiency, and reduces the energy consumption and maintenance cost; the equipment can adapt to multiple types of seeds and complex scenarios such as wet and field conditions without frequent component replacement, realizing the full - chain optimization from seed source screening to seedling quality, and providing an efficient and accurate seed source guarantee solution for fields such as garden breeding and ecological restoration.

[0023] In addition, during the screening, as the internal space continuously changes, by changing the position of the air outlet and using the flowing air to blow the seed husks in the seeds, the blowing can be more targeted, and the blowing efficiency will be relatively high. The specific operation is as follows: The bottom end of the screening mesh 21 is provided with leakage holes 28. The output end of the driving motor 13 is sleeved with an auxiliary component 3. The auxiliary component 3 includes a transmission belt 31. A transmission screw 24 is embedded inside the transmission belt 31. The transmission screw 24 is connected to the output end of the driving motor 13 through the transmission belt 31. A movable push piece 27 is sleeved on the surface of the transmission screw 24. There are two discharge ports provided at the discharge port of the seed storage bin 14. The two discharge ports are respectively embedded between the impurity removal pipe 22 and the screening mesh 21. The seeds discharged from the discharge port are conveyed between the positioning piece 26 and the movable push piece 27 and are screened through the screening mesh 21. The rotation of the transmission screw 24 drives the movable push piece 27 to move. During the movement, the seed storage bin 14 is pushed to slide horizontally along the impurity removal pipe 22. The movable push piece 27 is embedded inside the screening mesh 21, and a sliding connection is maintained between the movable push piece 27 and the screening mesh 21. On the other side of the screening mesh 21, a positioning piece 26 is fixedly connected. The positioning piece 26 and the movable push piece 27 have the same specifications. The top end of the positioning piece 26 is fixedly connected with an impurity removal pipe 22. An air outlet 23 is opened on the bottom surface of the impurity removal pipe 22. The top end of the impurity removal pipe 22 is movably connected with a seed storage bin 14. The seed storage bin 14 is used to convey seeds between the positioning piece 26 and the movable push piece 27. One side of the movable push piece 27 is connected with a movable groove block 29. The movable groove block 29 is embedded inside the air outlet 23, and a sliding connection is maintained between the movable groove block 29 and the air outlet 23. The movable groove block 29 is used to control the opening size of the air outlet 23; The end of the conveying trough 25 is connected with a collection bin 34. The collection bin 34 is used to wrap the turning piece 33. An air inlet pipe 15 is embedded inside the turning piece 33. One end of the air inlet pipe 15 is connected to a blower. The end of the impurity removal pipe 22 is communicated with the inside of the collection bin 34; During purging, flowing air is blown into the interior of the impurity removal pipe 22 through the air inlet pipe 15. The strong wind that enters the interior of the impurity removal pipe 22 is blown into the interior of the screening mesh 21 through the air outlet 23, thereby purging the seed husks and some relatively light impurities. At the same time, it can also assist the rolling of the seeds during the screening process. The seed husks that fall off during the rolling of the seeds on the screening mesh 21 can also be purged immediately. When moving along with the movable push piece 27, the space between the positioning piece 26 and the movable push piece 27 is reduced. At this time, the movement of the movable push piece 27 drives the movable groove block 29 to move. With the synchronous movement of the movable push piece 27 and the movable groove block 29, the opening of the movable groove block 29 changes, so that the opening always corresponds to the space between the movable push piece 27 and the positioning piece 26. When the seeds fully cover the screening mesh 21, the opening of the air outlet 23 is large, the purging area is large, the air intake volume is also large, and the purging force is relatively strong. As the space continuously shrinks, the opening of the air outlet 23 becomes small and the air intake volume is small, so the purging is more gentle. Whether the opening of the air outlet 23 is large or small, targeted treatment can be carried out. Through a large area and high air volume of strong air flow, large-volume light impurities attached to the seed surface can be quickly stripped, and at the same time, the strong wind force is used to push the seeds to be fully dispersed to avoid the influence of initial agglomeration on the screening efficiency. As the space shrinks, the air flow becomes gentle and delicate, which can not only accurately remove the fine impurities between the seeds, but also avoid the excessive impact of strong wind on small particle size seeds or winged seeds, especially suitable for the protective screening of fragile embryos or easily floating seeds.

[0024] The end of the output end of the drive motor 13 is connected to a transmission rod 32. The end of the transmission rod 32 is connected to a turning piece 33. The outer surface of the turning piece 33 is attached to the inner surface of the conveying trough 25. The turning piece 33 is driven by the drive motor 13 to perform circular motion. After the screening is completed, by opening the preset door hole on the positioning piece 26, the screened seeds are led into the interior of the conveying trough 25 through the door hole. Finally, with the rotation of the drive motor 13, the turning piece 33 is driven to rotate, stirring the seeds, and accompanied by manual sampling inspection, so as to reduce the bad seed rate in this way.

[0025] The bottom end of the screening mesh 21 is connected with a knocking component 4. The knocking component 4 includes a sliding rod 41. The bottom end of the screening mesh 21 is fixedly connected with the sliding rod 41. A scraping piece 42 is sleeved on the outer surface of the sliding rod 41. A knocking ball 43 is arranged on the inner wall of the scraping piece 42. The knocking ball 43 is arranged in a spherical shape. The knocking ball 43 is rotatably connected with the scraping piece 42. The knocking ball 43 can move freely on the inner wall of the scraping piece 42. The knocking ball 43 is matched with the leakage holes 28. In order to improve the overall screening effect, during screening, the sliding rod 41 can also be driven to rotate. When the sliding rod 41 rotates, it drives the scraping piece 42 to move. On the one hand, the movement of the scraping piece 42 scrapes the seeds stuck inside the leakage holes 28. On the other hand, it drives the movement of the knocking ball 43. When the knocking ball 43 moves, it continuously embeds into the leakage holes 28 at different points. During this switching process, it continuously impacts the screening mesh 21, causing the screening mesh 21 to vibrate in the upward direction, thereby reducing the probability of seeds getting stuck inside the leakage holes 28.

[0026] The technical scope of the present invention is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A seed screening device for garden breeding, characterized in that It includes support legs, at the top of which there is an installation frame. On one side of the installation frame, there is a driving motor. Inside the installation frame, there is a screening component. The screening component includes a conveying trough which is arranged inside the installation frame. The conveying trough is driven to move horizontally left and right by a vibration motor arranged at the bottom of the installation frame. Inside the conveying trough, there is a screening net, and at the bottom of the screening net, there are leakage holes. The output end of the driving motor is sleeved with an auxiliary component. The auxiliary component includes a transmission belt, inside which there is a transmission screw. The transmission screw is connected to the output end of the driving motor through the transmission belt. On the surface of the transmission screw, there is a movable push piece which is embedded inside the screening net. The movable push piece and the screening net are kept in a sliding connection. On the other side of the screening net, there is a positioning piece which has the same specification as the movable push piece. At the top of the positioning piece, there is a dust removal pipe, and at the bottom surface of the dust removal pipe, there is an air outlet. At the top of the dust removal pipe, there is a seed bin which is movably connected and is used to convey seeds between the positioning piece and the movable push piece.

2. The seed screening device for garden breeding according to claim 1, characterized in that, At the end of the output end of the driving motor, there is a transmission rod, and at the end of the transmission rod, there is a turning piece. The outer surface of the turning piece fits against the inner surface of the conveying trough, and the turning piece is driven by the driving motor to perform circular motion.

3. The seed screening device for garden breeding according to claim 1, characterized in that, On one side of the movable push piece, there is a movable groove block which is embedded inside the air outlet. The movable groove block and the air outlet are in a sliding connection, and the movable groove block is used to control the opening size of the air outlet.

4. The seed screening device for garden breeding according to claim 1, characterized in that, At the end of the conveying trough, there is a collection bin which is used to wrap the turning piece.

5. The seed screening device for garden breeding according to claim 4, characterized in that, Inside the turning piece, there is an air inlet pipe, one end of which is connected to a blower, and the end of the dust removal pipe is communicated with the inside of the collection bin.

6. The seed screening device for garden breeding according to claim 1, characterized in that, Both the screening net and the conveying trough are set to be arc-shaped, and there is a channel left between the screening net and the conveying trough for impurities to be exported.

7. The seed screening device for garden breeding according to claim 1, characterized in that, There are two discharge ports at the discharge opening of the seed bin, and the two discharge ports are respectively embedded between the dust removal pipe and the screening net. The seeds discharged from the discharge ports are conveyed between the positioning piece and the movable push piece and are screened by the screening net.

8. The seed screening device for garden breeding according to claim 7, wherein, The rotation of the transmission screw drives the movable push piece to move, and during the movement, it pushes the seed bin to slide horizontally along the dust removal pipe.

9. The seed screening device for garden breeding according to claim 1, characterized in that, At the bottom of the screening net, there is a knocking component. The knocking component includes a sliding rod which is fixedly connected to the bottom of the screening net. On the outer surface of the sliding rod, there is a scraping piece, and on the inner wall of the scraping piece, there are knocking balls.

10. The seed screening device for garden breeding according to claim 9, characterized in that, The knocking balls are set to be spherical, and the knocking balls and the scraping piece are in a rotational connection. The knocking balls can move freely on the inner wall of the scraping piece, and the knocking balls cooperate with the leakage holes.

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