Vibrating screen classifier for fine selection and classification of seeds

Abstract

The utility model discloses a seed selection grading vibration screening machine which comprises a screening machine body, the top of the screening machine body is rotationally connected with a feeding plate through a first rotating shaft, a check curtain is installed on one side of the feeding plate, vortex springs are installed at the two ends of the first rotating shaft, and a driving motor is installed on the left side of the screening machine body. A first rotating rod is installed at the output end of the driving motor, a first gear penetrates through the surface of the first rotating rod, fan blades are installed at the end of the first rotating rod, a second gear is engaged with one side of the first gear, a second rotating rod penetrates through the center of the second gear, and an eccentric wheel is installed at the end of the second rotating rod; a first screening plate is movably connected into the screening machine body through first springs, a mounting frame is connected to the side, away from the first springs, of the first screening plate, and a vibration motor drives a second screening plate and a bottom plate to vibrate, so that seeds are screened for multiple times, grading of the seeds is achieved, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seed selection and screening, in particular to a seed selection and grading vibration screening machine. Background Art

[0002] Seed screening is of great significance in agricultural production. It can classify and screen seeds according to size, shape, quality, density and other characteristics, remove impurities, shriveled seeds, insect-infested seeds and other bad seeds, thereby improving the quality of seeds. High-quality seeds can increase the germination rate, growth rate and yield of crops, and also help reduce the spread of pests and diseases and ensure the healthy growth of crops.

[0003] At present, during seed screening, seeds may be missed due to the seeds being fed too quickly, which reduces the screening quality. In addition, after the seeds are vibrated and graded, they may be mixed together again when they are separated from the screening machine, thereby increasing the screening process and time.

[0004] Therefore, we proposed a seed selection and grading vibration screening machine to solve the problems raised above. Summary of the Invention

[0005] The purpose of the utility model is to provide a seed selection and grading vibration screening machine to solve the problems raised in the above background technology, such as seed screening omission caused by too fast seed feeding and seeds being mixed together again in the process of leaving the screening machine.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solution: a seed selection and grading vibration screening machine, comprising a screening machine body, the top of the screening machine body being rotatably connected to a feed plate via a first rotating shaft, a barrier curtain being installed on one side of the feed plate, and vortex springs being installed at both ends of the first rotating shaft;

[0007] A driving motor is installed on the left side of the screening machine body, and a first rotating rod is installed at the output end of the driving motor, a first gear is passed through the surface of the first rotating rod, and a fan blade is installed at the end of the first rotating rod, a second gear is meshed with one side of the first gear, and a second rotating rod is passed through the center of the second gear, and an eccentric wheel is installed at the end of the second rotating rod, a first screen plate is movably connected to the inside of the screening machine body via a first spring, and a mounting frame is connected to the side of the first screen plate away from the first spring;

[0008] Two second sieve plates are arranged at the lower part of the interior of the screening machine body, and a screen is installed inside the second sieve plate, and a through opening is opened on one side of the second sieve plate and the screen. The two sides of the second sieve plate are fixed by fixed plates, and a second rotating shaft is installed on the side of the second sieve plate away from the fixed plate. Connecting rods are passed through the four corners of the second sieve plate, and a second spring is installed on the outer periphery of the bottom side of the connecting rod. The bottom plate is connected above the second spring, and a discharge port is installed on the bottom side of the bottom plate.

[0009] Preferably, the interior of the feed plate forms a rotating structure with the screening machine body via the first rotating shaft, and the curtain between the feed plates is made of elastic material.

[0010] Preferably, the first screen plate is inclined, and the first screen plate forms a movable structure with the screening machine body through a first spring, and a baffle is installed on one side of the top of the first screen plate.

[0011] Preferably, the mesh in the upper second sieve plate has a larger aperture than that in the lower second sieve plate, and the mesh is inclined in the second sieve plate.

[0012] Preferably, the second sieve plate and the openings on one side of the sieve mesh are adapted to each other, and the openings are staggered.

[0013] Preferably, four corners of the second sieve plate and the bottom plate are provided with sliding grooves adapted to the connecting rod, and the second sieve plate and the bottom plate form a sliding structure with the connecting rod through the sliding grooves.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the seed selection and grading vibration screening machine,

[0015] The eccentric wheel pushes the feed plate to rotate in the first rotating shaft, so that the feed plate vibrates the seeds, allowing the seeds to pass through the feed plate evenly. The vibration of the feed plate can also prevent the seeds from being blocked during the feeding process, thereby preventing the seeds from being missed in the screening due to too fast feeding, and improving the screening quality.

[0016] The vibration motor drives the second screen plate and the bottom plate to vibrate, so that the seeds are screened multiple times, thereby achieving seed grading and improving screening efficiency.

[0017] When it is necessary to replace the screen with another caliber, the second rotating shaft on one side of the second screen plate is rotated so that the second screen plates will not interfere with each other during replacement, thereby increasing replacement efficiency.

[0018] The staggered distribution of the openings prevents the sieved seeds from being mixed together again when they are separated from the sieve main body, thereby avoiding mixing after sieving and reducing the sieve process and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the side sectional structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the second screen plate of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the feed plate of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0025] Figure 7 This is a schematic diagram of the screen structure of the utility model.

[0026] In the figure: 1. Screening machine body; 2. Feed plate; 3. Curtain; 4. First rotating shaft; 5. Vortex spring; 6. Drive motor; 7. First rotating rod; 8. Fan blade; 9. First gear; 10. Second gear; 11. Second rotating rod; 12. Eccentric wheel; 13. First sieve plate; 14. Mounting frame; 15. First spring; 16. Baffle; 17. Second sieve plate; 18. Fixed plate; 19. Bottom plate; 20. Second spring; 21. Discharge port; 22. Vibration motor; 23. Second rotating shaft; 24. Screen; 25. Connecting rod; 26. Through port. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-7 The utility model provides a technical solution: a seed selection and grading vibration screening machine, comprising a screening machine body 1, the top of the screening machine body 1 is rotatably connected to a feed plate 2 via a first rotating shaft 4, a barrier curtain 3 is installed on one side of the feed plate 2, and vortex springs 5 are installed at both ends of the first rotating shaft 4;

[0029] A drive motor 6 is installed on the left side of the screening machine body 1, and a first rotating rod 7 is installed on the output end of the drive motor 6. A first gear 9 is passed through the surface of the first rotating rod 7, and a fan blade 8 is installed on the end of the first rotating rod 7. A second gear 10 is meshed with one side of the first gear 9, and a second rotating rod 11 is passed through the center of the second gear 10, and an eccentric wheel 12 is installed on the end of the second rotating rod 11. A first sieve plate 13 is movably connected to the inside of the screening machine body 1 via a first spring 15, and a mounting bracket 14 is connected to the side of the first sieve plate 13 away from the first spring 15;

[0030] Two second sieve plates 17 are arranged at the lower part of the screening machine body 1, and a screen 24 is installed inside the second sieve plate 17, and a through opening 26 is opened on one side of the second sieve plate 17 and the screen 24. The two sides of the second sieve plate 17 are fixed by fixed plates 18, and a second rotating shaft 23 is installed on the side of the second sieve plate 17 away from the fixed plate 18. Connecting rods 25 pass through the four corners of the second sieve plate 17, and a second spring 20 is installed on the outer periphery of the bottom side of the connecting rod 25. The bottom plate 19 is connected above the second spring 20, and a discharge port 21 is installed on the bottom side of the bottom plate 19.

[0031] The interior of the feed plate 2 forms a rotating structure with the screening machine body 1 through the first rotating shaft 4, and the curtain 3 between the feed plates 2 is made of elastic material. The eccentric wheel 12 rotates to push the feed plate 2, thereby realizing the vibration of the feed plate 2 on the seeds, so that the seeds pass through the feed plate 2 evenly.

[0032] The first sieve plate 13 is inclined, and the first sieve plate 13 forms a movable structure with the screening machine body 1 through the first spring 15, and a baffle 16 is installed on one side of the top of the first sieve plate 13. Through the rotation of the eccentric wheel 12, the eccentric wheel 12 squeezes the first spring 15, thereby vibrating the impurities in the seeds out of the screening machine body 1, thereby improving the screening quality of the seeds.

[0033] The sieve 24 in the upper second sieve plate 17 has a larger sieve hole diameter than the sieve 24 in the lower second sieve plate 17, and the sieve 24 is inclined in the second sieve plate 17. By starting the vibration motor 22, the seeds are screened multiple times in the second sieve plate 17, thereby achieving seed grading.

[0034] The second sieve plate 17 is adapted to the openings 26 on one side of the screen 24, and the openings 26 are staggered. The openings 26 in different directions make it difficult for the sieved seeds to be mixed together again when they are separated from the sieve machine body 1, thereby avoiding mixing after sieving.

[0035] The second sieve plate 17 and the bottom plate 19 are provided with sliding grooves adapted to the connecting rod 25 at the four corners, and the second sieve plate 17 and the bottom plate 19 form a sliding structure with the connecting rod 25 through the sliding grooves. By rotating the second rotating shaft 23 on one side of the second sieve plate 17, the second sieve plates 17 will not hinder each other when replaced.

[0036] Working principle: When using the seed selection and grading vibration screening machine, first, remove the bolts on the fixing plate 18 to release the fixation between the second screen plate 17 and the bottom plate 19, pull the second screen plate 17 upward, move the second screen plate 17 out of the connecting rod 25, and then rotate the second screen plate 17. The second screen plate 17 is rotated and opened through the second rotating shaft 23 on one side, so that the screen mesh 24 in the second screen plate 17 will not hinder each other when installed. After the installation is completed, the second screen plate 17 and the bottom plate 19 are connected to the fixing plate 18 by bolts, so that the second screen plate 17 and the bottom plate 19 are combined together. After the combination, open the inspection door on the front side of the screening machine main body 1 to install it into the screening machine main body 1;

[0037] Secondly, start the driving motor 6 and the vibration motor 22 to make them work. The driving motor 6 drives the first rotating rod 7 to rotate. The rotation of the first rotating rod 7 drives the first gear 9 to rotate. The rotation of the first gear 9 drives the second gear 10 meshed on one side to rotate, thereby driving the eccentric wheel 12 at the end of the second rotating rod 11 to rotate, so that the eccentric wheel 12 pushes the feed plate 2 to rotate in the first rotating shaft 4, and the curtain 3 shrinks for it. When the eccentric wheel 12 rotates to the other end, the feed plate 2 is reset by the vortex spring 5, and the curtain 3 is also reset accordingly, thereby realizing the vibration of the feed plate 2 on the seeds, so that the seeds pass through the feed plate 2 evenly and enter the screening machine body 1;

[0038] Next, after the seeds enter the screening machine body 1, they will fall into the first sieve plate 13, and the first sieve plate 13 rotates through the eccentric wheel 12, so that the eccentric wheel 12 squeezes the first spring 15 at the end of the first sieve plate 13, thereby realizing the vibration of the first sieve plate 13, and then the first rotating shaft 4 rotates, so that the fan blades 8 at the end of the first rotating shaft 4 generate wind force, so that the impurities of the seeds in the first sieve plate 13 are blown to the right side of the screening machine body 1 and fall to the right side of the baffle 16, and then vibrated out of the screening machine body 1 by the vibration of the first sieve plate 13, thereby performing basic impurity cleaning on the seeds, and the cleaned seeds will flow into the second sieve plate 17 through the mesh on the surface of the first sieve plate 13 and the holes at one end of the first sieve plate 13;

[0039] After the seeds fall into the second sieve plate 17, the second spring 20 is compressed by the vibration motor 22, so that the vibration motor 22 drives the second sieve plate 17 and the bottom plate 19 to vibrate, thereby vibrating and screening the seeds that fall into the sieve 24. The sieve 24 above has a larger sieve aperture than the sieve 24 below, so that the seeds are screened multiple times and thus classified.

[0040] Finally, after the seeds have been screened multiple times, they flow out through the second sieve plate 17 and the opening 26 opened on one side of the screen 24, and the seeds that finally fall into the bottom plate 19 will flow in through the discharge port 21, and the openings 26 are staggered. The openings 26 in different directions make it difficult for the screened seeds to be mixed together again when they are separated from the screening machine body 1, and the contents not described in detail in this manual belong to the existing technology known to professional and technical personnel in this field.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A seed selection and grading vibration screening machine, comprising a screening machine body (1), characterized in that: The top of the screening machine body (1) is rotatably connected to a feed plate (2) via a first rotating shaft (4), a barrier curtain (3) is installed on one side of the feed plate (2), and vortex springs (5) are installed at both ends of the first rotating shaft (4); A driving motor (6) is installed on the left side of the screening machine body (1), and a first rotating rod (7) is installed at the output end of the driving motor (6), a first gear (9) is passed through the surface of the first rotating rod (7), and a fan blade (8) is installed at the end of the first rotating rod (7), a second gear (10) is meshed with one side of the first gear (9), and a second rotating rod (11) is passed through the center of the second gear (10), and an eccentric wheel (12) is installed at the end of the second rotating rod (11), and a first screen plate (13) is movably connected to the inside of the screening machine body (1) via a first spring (15), and a mounting frame (14) is connected to the side of the first screen plate (13) away from the first spring (15); Two second sieve plates (17) are provided at the lower part of the screening machine body (1), and a screen (24) is installed inside the second sieve plate (17), and a through opening (26) is opened on one side of the second sieve plate (17) and the screen (24). Both sides of the second sieve plate (17) are fixed via a fixed plate (18), and a second rotating shaft (23) is installed on the side of the second sieve plate (17) away from the fixed plate (18). Connecting rods (25) pass through the four corners of the second sieve plate (17), and a second spring (20) is installed on the outer periphery of the bottom side of the connecting rod (25). A bottom plate (19) is connected above the second spring (20), and a discharge port (21) is installed on the bottom side of the bottom plate (19).

2. The seed selection and grading vibration screening machine according to claim 1, characterized in that: The feed plate (2) forms a rotating structure with the screening machine body (1) via the first rotating shaft (4), and the barrier curtain (3) between the feed plates (2) is made of elastic material.

3. The seed selection and grading vibration screening machine according to claim 1, characterized in that: The first screen plate (13) is inclined, and the first screen plate (13) forms a movable structure with the screening machine body (1) through a first spring (15), and a baffle (16) is installed on one side of the top of the first screen plate (13).

4. The seed selection and grading vibration screening machine according to claim 1, characterized in that: The sieve (24) in the upper second sieve plate (17) has a larger sieve aperture than the sieve (24) in the lower second sieve plate (17), and the sieve (24) is inclined in the second sieve plate (17).

5. The seed selection and grading vibration screening machine according to claim 4, characterized in that: The second sieve plate (17) is adapted to the openings (26) opened on one side of the sieve (24), and the openings (26) are staggered.

6. The seed selection and grading vibration screening machine according to claim 1, characterized in that: The second sieve plate (17) and the bottom plate (19) are provided with sliding grooves adapted to the connecting rod (25) at the four corners, and the second sieve plate (17) and the bottom plate (19) form a sliding structure with the connecting rod (25) through the sliding grooves.

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