Seed screening device for green Chinese onion cultivation

Abstract

The utility model relates to the technical field of green Chinese onion cultivation, and discloses a seed screening device for green Chinese onion cultivation, which comprises a screening bin, the bottom wall of the screening bin is an inclined plane, a circulating screening and separating assembly is arranged in the screening bin, the circulating screening and separating assembly is used for uniformly screening green Chinese onion seeds, and the circulating screening and separating assembly comprises a first discharging barrel. The first discharging barrel is rotationally connected to the bottom wall of the screening bin, a conical surface screening disc is fixedly connected to the upper end of the first discharging barrel, a plurality of screening holes are evenly formed in the outer surface of the conical surface screening disc, the forming direction of the screening holes and the conical surface of the conical surface screening disc are downwards inclined, and a plurality of inclined spiral plates are fixedly connected to the inner surface of the conical surface screening disc; through cooperative operation of the anti-blocking motion screening assembly and the circulating screening and separating assembly, green onion seeds can be effectively screened, and the problem that in a traditional mode, a blocked screen needs to be cleaned frequently, and consequently the green onion seed screening efficiency is low is solved to a certain degree.

Description

Technical Field

[0001] The utility model relates to the technical field of green onion cultivation, in particular to a seed screening device for green onion cultivation. Background Art

[0002] The existing green onion cultivation requires the use of seed screening devices, mainly to improve seed quality: the seed screening device can effectively remove impurities, damage, diseases and insect pests and other bad seeds in the seeds, thereby ensuring that the planted seeds are pure, healthy and high-quality, which helps to reduce the incidence of diseases and insect pests during the growth process of green onions after planting, and improve the yield and quality of green onions.

[0003] When the existing seed screening device for green onion cultivation is used, the seeds may bring in impurities such as dust, soil particles, plant fragments, etc. during the screening process, and some seeds may adhere to the screen due to their shape, size or humidity, causing the screen to be blocked. The blocked screen will hinder the seeds from passing through the sieve holes, resulting in reduced screening efficiency, which in turn affects the seed screening quality and yield, and it is often necessary to clean the blocked screen. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a seed screening device for green onion cultivation, which solves the problem that the existing seed screening device for green onion cultivation may adhere to the screen due to shape, size or humidity, causing the screen to be blocked, thereby affecting the screening quality and yield of the seeds.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solutions: a seed screening device for green onion cultivation, comprising a screening bin, the bottom wall of which is an inclined surface, a circulating screening and separation component is arranged in the screening bin, and the circulating screening and separation component is used for uniform screening of green onion seeds;

[0008] The circulating screening and separation assembly comprises a first discharging cylinder, which is rotatably connected to the bottom wall of the screening bin, and a conical sieve plate is fixedly connected to the upper end of the first discharging cylinder, and a plurality of sieve holes are evenly arranged on the outer surface of the conical sieve plate, and the opening direction of the sieve holes is inclined downward with respect to the conical surface of the conical sieve plate;

[0009] The inner surface of the conical sieve plate is fixedly connected with a plurality of inclined spiral plates, the inclined spiral plates are arranged inclined toward the center, and the plurality of inclined spiral plates are evenly arranged in a circular array;

[0010] The screening bin is provided with an upper cover, on which a fan is provided, and the inner surface of the screening bin is fixedly connected with an annular air outlet nozzle adapted to the opening of the conical sieve plate, and the outer surface of the annular air outlet nozzle is provided with an inclined air outlet hole adapted to the angle of the inclined spiral plate, and the air outlet end of the fan is communicated with the annular air outlet nozzle;

[0011] The screening bin is provided with an anti-blocking motion screening component, which is used to provide power for screening.

[0012] Preferably, the anti-blocking motion screening component includes a fixed frame, which is fixedly connected to the outer surface of the screening bin, a motor is fixedly mounted on the transverse plate of the fixed frame, and a local gear is fixedly connected to the outer surface of the output shaft of the motor.

[0013] Preferably, a gear is fixedly sleeved on the outer surface of the first discharging barrel, and the partial teeth on the partial gear are meshed and connected with the gear, and two tension spring fixing blocks are fixedly connected to the outer surface of the screening bin.

[0014] Preferably, a counterweight plate is fixedly sleeved on the outer surface of the first discharging barrel, and tension springs are fixedly connected between both ends of the counterweight plate and the corresponding tension spring fixing blocks, and the tension springs are used to provide power for automatic resetting of the counterweight plate.

[0015] Preferably, a blocking column is provided on the lower surface of the upper cover, and the blocking column is snap-connected with the inner wall of the first discharging barrel, and the blocking column is used to block the first discharging barrel and the center position of the multiple inclined spiral plates.

[0016] Preferably, a second discharging cylinder is fixedly connected to the lower inclined end of the outer surface of the screening bin, and the second discharging cylinder is used to discharge the onion seeds after screening. A screening collection box is arranged below the second discharging cylinder, and the screening collection box is used to receive and collect the onion seeds after screening. A first collecting box is arranged below the first discharging cylinder, and the first collecting box is used to receive and collect the onion seeds that have not been screened.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a seed screening device for green onion cultivation, which has the following beneficial effects:

[0019] 1. The seed screening device for green onion cultivation operates through a series of mechanisms. When the local teeth on the local gear mesh with the gear again, the first discharging barrel will instantly rotate in the opposite direction, and this instantaneous reverse rotation will generate a certain impact force, so that the green onion seeds stuck in the sieve holes will be disengaged. When no more green onion seeds are discharged from the second discharging barrel, the machine is turned off, the upper cover is opened, and the blocking column is taken out, so that the green onion seeds that have not passed through the sieve holes can fall from the first discharging barrel into the first collecting box to be collected. Through the coordinated operation of the anti-blocking motion screening component and the circulating screening and separation component, the green onion seeds can be effectively screened, and to a certain extent, the problem of low efficiency in green onion seed screening caused by frequent cleaning of the blocked screen in the traditional method is avoided.

[0020] 2. The seed screening device for green onion cultivation starts the fan when the circulating screening and separation component is in operation. The air outlet of the fan blows air into the conical sieve plate through the annular air outlet nozzle, so that the dust mixed with the green onion seeds can be separated from the green onion seeds, which improves the quality of the green onion seeds to a certain extent. In addition, the blown air will also have a certain dredging effect on the sieve holes when passing through the conical sieve plate, which further avoids blockage and improves the efficiency of green onion seed screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the conical sieve plate of the utility model;

[0023] Figure 3 It is a schematic diagram of the internal structure of the conical sieve plate of the utility model.

[0024] In the figure: 1. fixed frame; 2. screening bin; 3. upper cover; 4. first discharge barrel; 5. conical sieve plate; 6. sieve hole; 7. inclined spiral plate; 8. annular air outlet; 9. fan; 10. second discharge barrel; 11. blocking column; 12. motor; 13. local gear; 14. gear; 15. counterweight plate; 16. tension spring fixing block; 17. tension spring; 18. first collecting box; 19. screening collecting box. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-3The utility model provides a new technical solution: a seed screening device for green onion cultivation, comprising a screening bin 2, the bottom wall of the screening bin 2 is an inclined surface, a circulating screening and separation component is arranged in the screening bin 2, and the circulating screening and separation component is used for uniform screening of green onion seeds;

[0027] The circulating screening and separation assembly comprises a first discharging cylinder 4, which is rotatably connected to the bottom wall of the screening bin 2, and a conical sieve plate 5 is fixedly connected to the upper end of the first discharging cylinder 4, and a plurality of sieve holes 6 are evenly arranged on the outer surface of the conical sieve plate 5, and the opening direction of the sieve holes 6 is inclined downward with respect to the conical surface of the conical sieve plate 5;

[0028] The inner surface of the conical sieve plate 5 is fixedly connected with a plurality of inclined spiral plates 7, the inclined spiral plates 7 are arranged inclined toward the center, and the plurality of inclined spiral plates 7 are evenly arranged in a circular array;

[0029] The screening bin 2 is provided with an upper cover 3, and a fan 9 is provided on the upper cover 3. The inner surface of the screening bin 2 is fixedly connected with an annular air outlet 8 which matches the opening of the conical sieve plate 5. The outer surface of the annular air outlet 8 is provided with an inclined air outlet hole which matches the angle of the inclined spiral plate 7. The air outlet end of the fan 9 is communicated with the annular air outlet 8.

[0030] The screening bin 2 is provided with an anti-blocking motion screening component, which is used to provide power for screening.

[0031] Furthermore, the anti-blocking motion screening component includes a fixed frame 1, which is fixedly connected to the outer surface of the screening bin 2, a motor 12 is fixedly mounted on the transverse plate of the fixed frame 1, and a local gear 13 is fixedly connected to the outer surface of the output shaft of the motor 12.

[0032] Furthermore, a gear 14 is fixedly sleeved on the outer surface of the first discharging barrel 4 , and the partial teeth on the partial gear 13 are meshed and connected with the gear 14 . The outer surface of the screening bin 2 is fixedly connected with two tension spring fixing blocks 16 .

[0033] Furthermore, a counterweight plate 15 is fixedly sleeved on the outer surface of the first discharging barrel 4 , and tension springs 17 are fixedly connected between both ends of the counterweight plate 15 and the corresponding tension spring fixing blocks 16 , and the tension springs 17 are used to provide power for the counterweight plate 15 to automatically reset.

[0034] Furthermore, a blocking column 11 is provided on the lower surface of the upper cover 3 , and the blocking column 11 is engaged with the inner wall of the first discharge barrel 4 . The blocking column 11 is used to block the first discharge barrel 4 and the center of the plurality of inclined spiral plates 7 .

[0035] Furthermore, a second discharging cylinder 10 is fixedly connected to the outer surface of the screening bin 2 near the lower inclined end, and the second discharging cylinder 10 is used to discharge the onion seeds after screening. A screening collection box 19 is provided below the second discharging cylinder 10, and the screening collection box 19 is used to receive and collect the onion seeds after screening. A first collecting box 18 is provided below the first discharging cylinder 4, and the first collecting box 18 is used to receive and collect the onion seeds that have not been screened.

[0036] Furthermore, when in use, the upper cover 3 is opened and the onion seeds to be screened are poured into the conical sieve plate 5, and then the upper cover 3 is closed to start the motor 12. The output shaft of the motor 12 drives the gear 14 to rotate through the local teeth on the local gear 13, so that the gear 14 can drive the circulating screening and separation assembly on the first discharge barrel 4 to rotate together, so that the onion seeds deposited on the bottom wall of the conical sieve plate 5 can be affected by the centrifugal force and the inclined spiral plate 7. Move upward along the conical surface of the conical sieve plate 5, and the qualified onion seeds at this time will pass through the sieve holes 6 on the conical sieve plate 5, separate from the conical sieve plate 5, fall into the bottom wall of the screening bin 2, and finally fall into the screening collection box 19 from the second discharge barrel 10 to complete the collection. When the local teeth on the local gear 13 are separated from the gear 14, the counterweight plate 15 will be restored to its original position by the force of the two tension springs 17. At this time, the counterweight plate 15 restored to its original position drives the conical sieve plate 5 to rotate back to its original position instantly. The onion seeds on the conical surface of plate 15 will fall into the bottom wall of the conical sieve plate 5, and some of the onion seeds blocked in the sieve holes 6 will be taken out in the process of falling. The onion seeds that have not passed through the sieve holes 6 will wait for the next screening on the bottom wall of the conical sieve plate 5. When the local teeth on the local gear 13 re-engage with the gear 14, the first discharging barrel 4 will instantly rotate in the opposite direction, and this instantaneous reverse rotation will produce a certain impact force, which will cause the onion seeds stuck in the sieve holes 6 to break away. When no onion seeds are coming out of the second discharging barrel 10, the machine is turned off, the upper cover 3 is opened, and the blocking column 11 is taken out, so that the onion seeds that have not passed through the sieve holes 6 can fall from the first discharging barrel 4 into the first collecting box 18 to complete the collection. Through the coordinated operation of the anti-blocking motion screening component and the circulating screening and separation component, the onion seeds can be effectively screened, and to a certain extent, the problem of low onion seed screening efficiency caused by frequent cleaning of the blocked screen in the traditional method is avoided.

[0037] Furthermore, when the circulating screening and separation component is in operation, the fan 9 is started, and the air outlet end of the fan 9 blows air into the conical sieve plate 5 through the annular air outlet nozzle 8, so that the dust mixed with the onion seeds can be separated from the onion seeds, thereby improving the quality of the onion seeds to a certain extent. In addition, when the blown air passes through the conical sieve plate 5, it also has a certain clearing effect on the sieve holes 6, thereby further avoiding blockage and improving the efficiency of onion seed screening.

[0038] Working principle: when in use, open the upper cover 3 and pour the onion seeds to be screened into the conical sieve plate 5, then close the upper cover 3 and start the motor 12. The output shaft of the motor 12 drives the gear 14 to rotate through the local teeth on the local gear 13, so that the gear 14 can drive the circulating screening and separation assembly on the first discharge barrel 4 to rotate together, so that the onion seeds deposited on the bottom wall of the conical sieve plate 5 can move upward along the conical surface of the conical sieve plate 5 under the action of centrifugal force and the inclined spiral plate 7. At this time, the qualified onion seeds will pass through the sieve holes 6 on the conical sieve plate 5, separate from the conical sieve plate 5, fall into the bottom wall of the screening bin 2, and finally fall into the screening collection box 19 from the second discharge barrel 10 to complete the collection. When the local teeth on the local gear 13 separate from the gear 14, the counterweight plate 15 will be restored to its original position by the force of the two tension springs 17. At this time, the counterweight plate 15 restored to its original position drives the conical sieve plate 5 to rotate instantly. Returning to the original position, the onion seeds on the conical surface of the counterweight plate 15 will fall into the bottom wall of the conical sieve plate 5, and some of the onion seeds blocked in the sieve holes 6 will be taken out during the falling process, and the onion seeds that have not passed through the sieve holes 6 will wait for the next screening at the bottom wall of the conical sieve plate 5. When the local teeth on the local gear 13 re-engage with the gear 14, the first discharging barrel 4 will instantly rotate in the opposite direction, and this instantaneous reverse rotation will produce a certain impact force, which will cause the onion seeds stuck in the sieve holes 6 to break away. When no onion seeds are left in the second discharging barrel 10, the machine is turned off, the upper cover 3 is opened, and the blocking column 11 is taken out, so that the onion seeds that have not passed through the sieve holes 6 can fall from the first discharging barrel 4 into the first collecting box 18 to complete the collection. When the circulating screening and separation component is in operation, the fan 9 is started, and the air outlet end of the fan 9 blows air into the conical sieve plate 5 through the annular air outlet nozzle 8 so that the dust mixed with the onion seeds can be separated from the onion seeds.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seed screening device for green onion cultivation, characterized in that: It comprises a screening bin (2), the bottom wall of the screening bin (2) is an inclined surface, a circulating screening and separation component is arranged in the screening bin (2), and the circulating screening and separation component is used for uniform screening of green onion seeds; The circulating screening and separation component comprises a first discharge barrel (4), the first discharge barrel (4) is rotatably connected to the bottom wall of the screening bin (2), the upper end of the first discharge barrel (4) is fixedly connected to a conical sieve plate (5), the outer surface of the conical sieve plate (5) is evenly provided with a plurality of sieve holes (6), and the opening direction of the sieve holes (6) is arranged to be inclined downward with respect to the conical surface of the conical sieve plate (5); A plurality of inclined spiral plates (7) are fixedly connected to the inner surface of the conical sieve plate (5), the inclined spiral plates (7) are arranged to be inclined toward the center, and the plurality of inclined spiral plates (7) are evenly arranged in a circular array; The screening bin (2) is provided with an anti-blocking motion screening component, which is used to provide power for screening.

2. The seed screening device for green onion cultivation according to claim 1, characterized in that: The screening bin (2) is provided with an upper cover (3), and a fan (9) is provided on the upper cover (3); an annular air outlet (8) adapted to the opening of the conical sieve plate (5) is fixedly connected to the inner surface of the screening bin (2); an inclined air outlet hole adapted to the angle of the inclined spiral plate (7) is provided on the outer surface of the annular air outlet (8); and an air outlet end of the fan (9) is in communication with the annular air outlet (8); The anti-blocking motion screening component comprises a fixed frame (1), the fixed frame (1) is fixedly connected to the outer surface of the screening bin (2), a motor (12) is fixedly mounted on the transverse plate of the fixed frame (1), and a local gear (13) is fixedly connected to the outer surface of the output shaft of the motor (12).

3. The seed screening device for green onion cultivation according to claim 1, characterized in that: A gear (14) is fixedly sleeved on the outer surface of the first discharge barrel (4), and the local teeth on the local gear (13) are meshed with the gear (14). The outer surface of the screening bin (2) is fixedly connected to two tension spring fixing blocks (16).

4. The seed screening device for green onion cultivation according to claim 3, characterized in that: A counterweight plate (15) is fixedly sleeved on the outer surface of the first discharging barrel (4), and tension springs (17) are fixedly connected between the two ends of the counterweight plate (15) and the corresponding tension spring fixing blocks (16), and the tension springs (17) are used to provide power for the automatic reset of the counterweight plate (15).

5. The seed screening device for green onion cultivation according to claim 2, characterized in that: The lower surface of the upper cover (3) is provided with a material blocking column (11), which is engaged with the inner wall of the first discharge barrel (4) and is used to block the first discharge barrel (4) and the center of the plurality of inclined spiral plates (7).

6. The seed screening device for green onion cultivation according to claim 1, characterized in that: A second discharge cylinder (10) is fixedly connected to the outer surface of the screening bin (2) near the lower inclined end. The second discharge cylinder (10) is used to discharge the sifted onion seeds. A screening collection box (19) is provided below the second discharge cylinder (10). The screening collection box (19) is used to receive and collect the sifted onion seeds. A first collection box (18) is provided below the first discharge cylinder (4). The first collection box (18) is used to receive and collect the unsifted onion seeds.

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