A corn planting seed screening device

Abstract

The utility model discloses a corn planting seed screening device relates to seed screening technical field, aiming at the problem that the light and relatively large impurity in corn seed is difficult to remove by one -time screening and leads to the poor seed purity, including base, install two support frames on the base top surface and install the same unloading box between two support frames, be provided with the impurity removal mechanism on the unloading box, the base top surface is provided with screening subassembly, the utility model discloses through the fan to corn seed blowing, make light impurity pass through filter plate and export through the impurity discharge pipe, through servo motor drive crank rotation, the crank drives the connecting rod rotation, make two sliding blocks respectively drive screening frame and the material receiving frame remove, and screening frame will relatively large impurity screen out, and the material receiving frame carries out the corn seed that screens out and receives, can effectively remove light impurity and relatively large impurity in one operation, need not to the corn seed carries out multiple screening, has improved screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of seed screening technology, specifically a corn planting seed screening device. Background Technology

[0002] Corn seeds are reproductive bodies capable of growing into mature corn plants. They are formed from ovules through pollination and fertilization, and consist of three parts: seed coat, embryo, and endosperm. They are classified into four types: conventional varieties, inbred lines, single-cross varieties, double-cross varieties, and triple-cross varieties. After corn matures, it needs to be dried in the sun. After drying, the corn kernels are removed as seeds. However, corn seeds often contain impurities such as dust, soil, and stones, as well as a large amount of corn bran, so they need to be screened.

[0003] In existing corn seed screening technologies, a single screening method is often used, which makes it difficult to effectively remove both light and large impurities from corn seeds in a single operation. Often, multiple screenings are required, which not only results in low screening efficiency but also makes it easy for light and large impurities to be missed in one screening, leading to poor seed purity and making it difficult to meet the requirements of efficient and high-quality screening.

[0004] Therefore, a corn seed screening device is needed to solve the problem of poor seed purity caused by the difficulty in removing light and large impurities in corn seeds in one screening in the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide a corn seed screening device to solve the problem in the prior art that it is difficult to remove light and large impurities in corn seeds in one screening, resulting in poor seed purity.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a corn planting seed screening device, comprising a base, two support frames installed on the top surface of the base, and a feeding box installed between the two support frames, wherein a cleaning mechanism is provided on the feeding box, and a screening component is provided on the top surface of the base; The impurity removal mechanism includes two through holes on one side of the feeding box, two fans installed on one side of the feeding box and corresponding to the two through holes, a ventilation baffle installed inside the feeding box and close to the two fans, a filter plate installed inside the feeding box, and an impurity discharge pipe installed on the bottom of the feeding box and communicating with the inside of the feeding box.

[0007] It should be noted in the solution that the screening component includes a support plate installed on the top surface of the base, two parallel grooves opened on the support plate, a slider slidably installed inside the groove, two springs installed between the sides of the slider and the corresponding sides inside the groove, two guide grooves opened on the top surface of the support plate and corresponding to and communicating with the two grooves, a connecting plate slidably installed inside the guide groove and connected to the corresponding slider, an L-shaped plate installed at both ends of one of the connecting plates, the same screening frame installed between the two L-shaped plates, and a receiving frame installed on the top surface of the other connecting plate.

[0008] It is worth noting that one of the sliders has a crank rotatably mounted on one end via a shaft and a servo motor for driving the crank to rotate on the other end. The same connecting rod is rotatably mounted between one end of the crank and one end of the other slider.

[0009] Furthermore, it should be noted that a feeding hopper is installed on the top surface of the feeding box, and an openable and closable sealing plate is provided on one side of both the screening frame and the receiving frame.

[0010] In a preferred embodiment, both the screening frame and the receiving frame are inclined at a small angle and are distributed in parallel.

[0011] Compared with the prior art, the beneficial effects of this utility model are: A fan blows air onto the corn seeds, causing light impurities to pass through the filter plate and be discharged through the discharge pipe. A servo motor drives a crank to rotate, which in turn rotates a connecting rod, causing two sliders to move the screening frame and the receiving frame respectively. The screening frame screens out larger impurities, while the receiving frame collects the screened corn seeds. In one operation, both light and larger impurities can be effectively removed, eliminating the need for multiple screenings of the corn seeds and effectively avoiding the problem of poor seed purity caused by the difficulty in removing light and larger impurities in one go. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view cross-sectional structural diagram of the feeding box of this utility model; Figure 3 This is a front view structural diagram of the support plate of this utility model; Figure 4 This is a top view of the support plate structure of this utility model.

[0013] The following are the labels in the diagram: 1. Base; 2. Support frame; 3. Feeding box; 4. Impurity removal mechanism; 41. Through hole; 42. Fan; 43. Ventilation baffle; 44. Filter plate; 45. Impurity discharge pipe; 5. Screening assembly; 51. Support plate; 52. Slide rail; 53. Slider; 54. Spring; 55. Guide groove; 56. Connecting plate; 57. L-shaped plate; 58. Screening frame; 59. Receiving frame; 6. Crank; 7. Servo motor; 8. Connecting rod; 9. Feed hopper; 10. Sealing plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: Figures 1-4 As shown, this utility model provides a technical solution, including a base 1, two support frames 2 installed on the top surface of the base 1, and the same feeding box 3 installed between the two support frames 2. The feeding box 3 is provided with a cleaning mechanism 4, and the top surface of the base 1 is provided with a screening component 5. The impurity removal mechanism 4 includes two through holes 41 on one side of the feeding box 3, two fans 42 installed on one side of the feeding box 3 and corresponding to the two through holes 41, a ventilation baffle 43 installed inside the feeding box 3 and close to the two fans 42, a filter plate 44 installed inside the feeding box 3, and an impurity discharge pipe 45 installed on the bottom surface of the feeding box 3 and communicating with the inside of the feeding box 3.

[0016] Specifically, when the corn seeds fall into the feeding box 3, the fan 42 blows a strong airflow onto the seeds. At this time, the filter plate 44 intercepts the corn seeds, while the light impurities pass through the filter plate 44 and are discharged from the discharge pipe 45, thus removing the light impurities from the corn seeds.

[0017] Further as Figure 1 , Figure 3 and Figure 4As shown, it is worth noting that the screening component 5 includes a support plate 51 installed on the top surface of the base 1, two parallel sliding grooves 52 opened on the support plate 51, a slider 53 slidably installed inside the sliding grooves 52, two springs 54 installed between the sides of the slider 53 and the corresponding sides inside the sliding grooves 52, two guide grooves 55 opened on the top surface of the support plate 51 and corresponding to and communicating with the two sliding grooves 52, a connecting plate 56 slidably installed inside the guide grooves 55 and connected to the corresponding slider 53, an L-shaped plate 57 installed at both ends of one of the connecting plates 56, the same screening frame 58 installed between the two L-shaped plates 57, and a receiving frame 59 installed on the top surface of the other connecting plate 56.

[0018] Specifically, when the slider 53 moves inside the chute 52, the two sliders 53 drive the screening frame 58 and the receiving frame 59 to move respectively through the connecting plate 56. During the movement, the screening frame 58 screens out the larger impurities in the corn seeds, and the screened corn seeds fall into the receiving frame 59 for collection, thus achieving the removal of larger impurities from the corn seeds.

[0019] Further as Figure 1 , Figure 3 and Figure 4 As shown, it is worth noting that one of the sliders 53 has a crank 6 rotatably mounted on one end via a shaft, and a servo motor 7 for driving the crank 6 to rotate is mounted on the other end. The same connecting rod 8 is rotatably mounted between one end of the crank 6 and one end of the other slider 53.

[0020] Specifically, when the servo motor 7 starts and drives the crank 6 to rotate, the crank 6 drives the connecting rod 8 to rotate. The connecting rod 8 pulls the two sliders 53 to move closer or further apart in a reciprocating motion, so as to move the screening frame 58 and the receiving frame 59 to screen the corn seeds.

[0021] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that a feeding hopper 9 is installed on the top surface of the feeding box 3, and an openable and closable sealing plate 10 is provided on one side of the screening frame 58 and the receiving frame 59.

[0022] Specifically, a feed hopper 9 is installed on the top surface of the feeding box 3 to facilitate the feeding of corn seeds into the feeding box 3 using a conveying device. Both the screening frame 58 and the receiving frame 59 are equipped with an openable and closable sealing plate 10 on one side to facilitate the cleaning of larger impurities screened out by opening the sealing plate 10 and the collection of the screened corn seeds.

[0023] Further as Figure 1 and Figure 3As shown, it is worth noting that both the screening box 58 and the receiving box 59 are set at a small angle and are distributed in parallel.

[0024] Specifically, both the screening frame 58 and the receiving frame 59 are set at a small angle to improve the screening efficiency of the screening frame 58. The screening frame 58 and the receiving frame 59 are distributed in parallel so that the receiving frame 59 can collect the screened corn seeds.

[0025] In summary: When using this screening device, first turn on the fan 42 and servo motor 7. The conveyor then feeds the corn seeds into the feed hopper 9. The corn seeds enter the discharge box 3 from the feed hopper 9. During the fall of the corn seeds, the two fans 42 powerfully blow air onto them. The filter plate 44 intercepts the corn seeds, while light impurities pass through the filter plate 44 and are discharged through the discharge pipe 45. After impurity removal, the corn seeds fall into the screening frame 58. At this time, the servo motor 7 drives the crank 6 to rotate. The crank 6 rotates, causing the connecting rod 8 to rotate. Under the action of the spring 54, the rotating connecting rod 8 pulls the two sliders 53 to move. 3. Repeatedly moving closer to or further away from each other, thereby moving the screening frame 58 and the receiving frame 59 respectively. During the movement, the screening frame 58 screens the corn seeds, intercepting larger impurities within the screening frame 58. The screened corn seeds fall into the receiving frame 59 for collection. After screening, the sealing plate 10 on the screening frame 58 and the receiving frame 59 is opened to remove the screened impurities and corn seeds. The screening effect is good, and light and larger impurities can be effectively removed in one operation without the need for multiple screenings of corn seeds, thereby improving screening efficiency and effectively avoiding the problem of poor seed purity caused by the difficulty in removing light and larger impurities in corn seeds in one screening.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A corn seed screening device, comprising a base (1), two support frames (2) mounted on the top surface of the base (1), and a common feeding box (3) mounted between the two support frames (2), characterized in that: The feeding box (3) is equipped with a cleaning mechanism (4), and the top surface of the base (1) is equipped with a screening component (5). The impurity removal mechanism (4) includes two through holes (41) on one side of the feeding box (3), two fans (42) installed on one side of the feeding box (3) and corresponding to the two through holes (41), a ventilation baffle (43) installed inside the feeding box (3) and close to the two fans (42), a filter plate (44) installed inside the feeding box (3), and an impurity discharge pipe (45) installed on the bottom surface of the feeding box (3) and communicating with the inside of the feeding box (3).

2. The corn seed screening device according to claim 1, characterized in that: The screening component (5) includes a support plate (51) installed on the top surface of the base (1), two parallel grooves (52) opened on the support plate (51), a slider (53) slidably installed inside the groove (52), two springs (54) installed between the sides of the slider (53) and the sides inside the corresponding groove (52), two guide grooves (55) opened on the top surface of the support plate (51) and corresponding to and communicating with the two grooves (52), a connecting plate (56) slidably installed inside the guide groove (55) and connected to the corresponding slider (53), an L-shaped plate (57) installed at both ends of one of the connecting plates (56), the same screening frame (58) installed between the two L-shaped plates (57), and a receiving frame (59) installed on the top surface of the other connecting plate (56).

3. The corn seed screening device according to claim 2, characterized in that: One of the sliders (53) has a crank (6) rotatably mounted on one end via a shaft and a servo motor (7) for driving the crank (6) to rotate on the other end. The same connecting rod (8) is rotatably mounted between one end of the crank (6) and one end of the other slider (53).

4. The corn seed screening device according to claim 3, characterized in that: The top surface of the feeding box (3) is equipped with a feeding hopper (9), and the screening frame (58) and the receiving frame (59) are each provided with an openable and closable sealing plate (10).

5. The corn seed screening device according to claim 4, characterized in that: The screening box (58) and the receiving box (59) are both inclined at a small angle, and the screening box (58) and the receiving box (59) are distributed in parallel.

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