A seed screening device for agricultural production

Abstract

The utility model relates to a seed screening technical field especially for agricultural production is with seed screening equipment, including box, the front end left part and the front end right part of box all are through the hinge swing installation have the protective door, the inner left wall of box, the inner left wall lower part and the inner right wall lower part all are provided with the sliding slot, three the inside of sliding slot is commonly provided with screening mechanism, the upper end left part of box sets up the feeding and edulcoration mechanism. The utility model discloses a kind of seed screening equipment for agricultural production, the quick replacement of screening mechanism is realized by slider and sliding slot cooperation to adapt to multiple seeds, using inclined first screen plate, second screen plate, blanking plate, different discharge port and collection box realize seed according to particle size Automatic classification screening and collection, save manpower and improve efficiency, while through the progressive pushing seed of screw conveying leaf and cooperate dust hood negative pressure adsorption, fully remove light impurities, improve seed purity, lay foundation for subsequent sowing growth.

Description

Technical Field

[0001] This utility model relates to the field of seed screening technology, and in particular to a seed screening device for agricultural production. Background Technology

[0002] In agricultural production, seed screening is a crucial step in ensuring crop germination rate, growth quality, and final yield. However, traditional seed screening methods have many limitations. The sieve plates of traditional screening equipment are mostly fixed structures, making it difficult to quickly change them according to the size and particle characteristics of different crop seeds. As a result, a single device can often only adapt to the screening needs of a single or a few types of seeds, resulting in poor versatility and flexibility. Furthermore, traditional screening equipment has significant shortcomings in dust and impurity removal. Most devices use a one-time feeding method, and the seeds are relatively concentrated during transportation, making it difficult to fully remove light impurities such as dust, straw fragments, and weed seeds. These impurities not only affect the screening accuracy, leading to the mixing of unqualified seeds, but may also carry pathogens and insect eggs, adversely affecting subsequent seed storage and post-sowing growth. Some simple screening equipment even lacks a dedicated dust and impurity removal structure, requiring secondary manual cleaning, further increasing labor costs and operating time. Therefore, we have introduced a new seed screening device for agricultural production. Utility Model Content

[0003] The main objective of this invention is to provide a seed screening device for agricultural production, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A seed screening device for agricultural production includes a box body. Protective doors are hinged to the left and right front ends of the box body. Slide grooves are provided on the upper left, lower left, and lower right inner walls of the box body. A screening mechanism is located within the three slide grooves. A feeding and impurity removal mechanism is located on the upper left side of the box body. Support frames are provided on the lower left and lower right sides of the box body. A placement plate is located at the lower ends of the two support frames. Discharge ports are located at the lower middle, lower right, and lower right sides of the box body. Collection boxes are slidably installed in the lower middle, lower right, and lower right sides of the box body via T-slots. The lower right inner wall of the box body is inclined with a left-high, right-low profile.

[0005] Preferably, the screening mechanism includes a first screen plate, a connecting plate is provided at the lower right end of the first screen plate, a feeding plate is provided at the lower left end of the connecting plate, a second screen plate is provided at the lower right end of the connecting plate, a hand groove is provided at the front end of the connecting plate, a hand lever is provided inside the hand groove, and a slider is provided at the end of the first screen plate, the feeding plate and the second screen plate near the inner wall of the box.

[0006] Preferably, both the first sieve plate and the second sieve plate are inclined from left to right, and the mesh diameter on the first sieve plate is smaller than the mesh diameter on the second sieve plate.

[0007] By adopting the above technical solution: the inclined sieve plate can be used to make the seeds slide down the sieve plate naturally with the help of gravity. The first sieve plate has smaller mesh, which can screen out seeds that are too small. The second sieve plate has larger mesh, which can further separate seeds that are too large.

[0008] Preferably, the feeding plate is inclined from left to right, and the feeding plate and the second screen plate correspond to the positions of the two discharge ports at the top.

[0009] By adopting the above technical solution, the tilt angle of left-low and right-high allows qualified seeds on the feeding plate to slide to the right with the help of gravity and be smoothly guided to the corresponding discharge port.

[0010] Preferably, the first screen plate, the feeding plate, and the second screen plate are all slidably installed inside the three slide grooves via sliders, and the second screen plate corresponds to the position of the lower inner wall of the box.

[0011] By adopting the above technical solution, the cooperation between the slider and the chute allows the sieve plate and the feeding plate to be flexibly disassembled, which can ensure that the seeds after being screened by the second sieve plate fall accurately into the collection area at the bottom of the box.

[0012] Preferably, the feeding and impurity removal mechanism includes a support plate, a conveying cylinder is provided at the upper end of the support plate, a feeding port is provided at the upper right part of the conveying cylinder, a motor is fixedly installed at the middle of the right end of the conveying cylinder, a spiral conveying blade is fixedly installed at the output end of the motor through a rotating rod, a discharge cylinder is provided at the lower left part of the conveying cylinder, the discharge cylinder is inserted and fixedly installed at the upper left part of the box, a dust collection hood is fixedly installed at the rear end of the discharge cylinder through an installation port, a conveying pipe is provided at the rear end of the dust collection hood, a collection box is provided at the lower end of the conveying pipe, and a vacuum cleaner is provided at the left end of the collection box.

[0013] By adopting the above technical solution: the motor drives the spiral conveyor blade to rotate, which can evenly and stably convey the seeds put into the feeding port to the left side to the feeding cylinder. The vacuum cleaner generates negative pressure through the dust suction hood, which can suck away the mixed light impurities and shriveled seeds before the seeds enter the box. The impurities enter the collection box for centralized processing through the conveying pipe.

[0014] Preferably, the feed cylinder and the feed cylinder's interior are interconnected, and the feed cylinder is located above the first screen plate.

[0015] By adopting the above technical solution, the feeding cylinder is connected to the conveying cylinder, ensuring that the seeds in the conveying cylinder can smoothly pass through the feeding cylinder into the box, and the seeds can fall directly onto the first screen plate after being discharged from the feeding cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The combination of slider and chute allows for quick replacement of screening mechanisms with different mesh sizes, adapting to the screening needs of various seed varieties and improving the equipment's versatility and flexibility. During the screening process, the inclined design of the first sieve plate, the second sieve plate, and the lower wall of the box, along with the discharge port and collection box at different positions, enables automatic grading and sorting of seeds by particle size, eliminating the need for manual sorting, saving labor costs, and ensuring accurate grading, which facilitates targeted processing of different grades of seeds and improves agricultural production efficiency. 2. After the seeds are put into the conveyor cylinder through the feeding port, the motor drives the spiral conveyor blades to push the seeds to the left little by little into the feeding cylinder. At the same time, the vacuum cleaner creates negative pressure through the conveyor pipe to suck up light impurities and send them into the collection box. The progressive pushing of the spiral conveyor disperses the seeds, making it easier for the vacuum cleaner to fully absorb impurities. The efficient dust and impurity removal reduces the impact of impurities on the screening accuracy, improves the purity of the seeds, and provides a good foundation for subsequent sowing and growth. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a seed screening device for agricultural production according to the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the housing of a seed screening device for agricultural production according to this utility model. Figure 3 This is a schematic diagram of the overall structure of the screening mechanism of a seed screening device for agricultural production according to this utility model; Figure 4 This is a schematic diagram of the overall structure of the feeding and impurity removal mechanism of a seed screening device for agricultural production according to this utility model.

[0018] In the diagram: 1. Box body; 2. Protective door; 3. Slide chute; 4. Screening mechanism; 40. First screen plate; 41. Connecting plate; 42. Feeding plate; 43. Second screen plate; 44. Hand-operated chute; 45. Hand lever; 46. Sliding block; 5. Feeding and impurity removal mechanism; 50. Support plate; 51. Conveying cylinder; 52. Feeding port; 53. Motor; 54. Spiral conveyor blade; 55. Feeding cylinder; 56. Dust hood; 57. Conveying pipe; 58. Collection box; 59. Vacuum cleaner; 6. Support frame; 7. Placement plate; 8. Discharge port; 9. Collection box. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-4 This utility model provides a technical solution: A seed screening device for agricultural production includes a box body 1. Protective doors 2 are hinged to the left and right front ends of the box body 1. Slide grooves 3 are provided on the upper left, lower left, and lower right inner walls of the box body 1. A screening mechanism 4 is provided inside the three slide grooves 3. A feeding and impurity removal mechanism 5 is provided on the upper left side of the box body 1. Support frames 6 are provided on the lower left and lower right sides of the box body 1. A placement plate 7 is provided at the lower ends of the two support frames 6. A discharge port 8 is provided on the lower middle, lower right, and lower right sides of the box body 1. A collection box 9 is slidably installed on the lower middle, lower right, and lower right sides of the box body 1 via a T-slot. The lower right inner wall of the box body 1 is inclined with the left side higher than the right side.

[0023] In this embodiment, the screening mechanism 4 includes a first screen plate 40, a connecting plate 41 is provided at the lower right end of the first screen plate 40, a feeding plate 42 is provided at the lower left end of the connecting plate 41, a second screen plate 43 is provided at the lower right end of the connecting plate 41, a hand groove 44 is provided at the front end of the connecting plate 41, a hand lever 45 is provided inside the hand groove 44, and a slider 46 is provided at the end of the first screen plate 40, the feeding plate 42, and the second screen plate 43 near the inner wall of the housing 1; the first screen plate 40 and the second screen plate 43 are both inclined from left to right, and the mesh diameter on the first screen plate 40 is smaller than the mesh diameter on the second screen plate 43; the feeding plate 42 is inclined from left to right, and the feeding plate 42 and the second screen plate 43 correspond to the positions of the two upper discharge ports 8 respectively; the first screen plate 40, the feeding plate 42, and the second screen plate 43 are all slidably installed inside the three sliding grooves 3 by the slider 46, and the second screen plate 43 corresponds to the position of the lower inner wall of the housing 1.

[0024] Through the above scheme: When the screening mechanism 4 is in use, the feeding plate 42 and the second screening plate 43, which are connected by the first screening plate 40 and the connecting plate 41, can be slidably installed in the box 1 in the sliding groove 3 via the hand-pulled groove 44 and the hand-pulled rod 45. The first screening plate 40 is inclined from left to right and has a small mesh size, which can screen the falling seeds first, allowing small seeds to be screened out and fall onto the feeding plate 42 below, and be discharged from the discharge port 8 on the left side of the box 1. Larger seeds move to the right along the plate surface and are transferred through the connecting plate 41. The second screening plate 43 is inclined from left to right and has a large mesh size, which further screens the seeds falling from the connecting plate 41, separating out oversized seeds. The largest seeds are discharged from the discharge port 8 at the upper right end, while medium-sized seeds fall through the mesh on the second screening plate 43 to the lower right side of the inner wall of the box 1. Since the lower inner wall is inclined from left to right, medium-sized seeds are discharged from the discharge port 8 at the lower right side, thus realizing multi-stage screening of seeds.

[0025] In this embodiment, the feeding and impurity removal mechanism 5 includes a support plate 50, a conveying cylinder 51 is provided at the upper end of the support plate 50, a feeding port 52 is provided at the upper right part of the conveying cylinder 51, a motor 53 is fixedly installed at the middle of the right end of the conveying cylinder 51, a spiral conveying blade 54 is fixedly installed at the output end of the motor 53 through a rotating rod, a feeding cylinder 55 is provided at the lower left part of the conveying cylinder 51, the feeding cylinder 55 is inserted and fixedly installed at the upper left part of the housing 1, a dust suction hood 56 is fixedly installed at the rear end of the feeding cylinder 55 through an installation port, a conveying pipe 57 is provided at the rear end of the dust suction hood 56, a collection box 58 is provided at the lower end of the conveying pipe 57, and a vacuum cleaner 59 is provided at the left end of the collection box 58; the feeding cylinder 55 and the internal parts of the feeding cylinder 55 are interconnected, and the feeding cylinder 55 is located above the first screen plate 40.

[0026] With the above scheme: when the feeding and impurity removal mechanism 5 is in use, the seeds are put into the conveying cylinder 51 from the feeding port 52. The motor 53 drives the rotating rod to rotate the spiral conveying blade 54, which conveys the seeds to the left to the feeding cylinder 55. The feeding cylinder 55 is connected to the conveying cylinder 51 and is located above the first screen plate 40, so that the seeds fall accurately into the screening mechanism. At the same time, the vacuum cleaner 59 works, and the vacuum hood 56 generates negative pressure through the conveying pipe 57. When the seeds pass through the feeding cylinder 55, light impurities are sucked away and sent into the collection box 58. During the impurity removal, the spiral conveying blade 54 pushes the seeds to the left little by little to the feeding cylinder 55, instead of conveying them all at once. This gradual conveying method makes the seeds more dispersed during the conveying process. The vacuum cleaner 59 generates negative pressure through the conveying pipe 57 to more fully suck away the light impurities in the seeds and send them into the collection box 58.

[0027] It should be noted that this utility model is a seed screening device for agricultural production. During use, a screening mechanism 4 with suitable mesh size can be selected according to the seed variety to be screened. Then, by opening the protective door 2, the first screen plate 40, connecting plate 41, feeding plate 42, and second screen plate 43 of the screening mechanism 4 are slid into the three sliding grooves 3 inside the housing 1 by means of the slider 46 and installed by using the hand pull groove 44 and hand pull rod 45. After closing the protective door 2, the seeds are fed into the conveying cylinder 51 from the feeding port 52 of the feeding and impurity removal mechanism 5. The motor 53 drives the rotating rod to rotate the spiral conveying blade 54, so that the seeds are pushed to the left little by little to the feeding cylinder 55. During this process, the vacuum cleaner 59 works, and the vacuum hood 56 generates negative pressure through the conveying pipe 57 to fully suck away the light impurities in the seeds and send them into the collection box 58. The seeds that have undergone preliminary impurity removal pass through the... The feeding cylinder 55, connected to the conveyor cylinder 51, falls onto the screening mechanism 4. Small seeds fall through the mesh of the first screen plate 40, which is inclined from left to right and has small mesh size, onto the feeding plate 42. The feeding plate 42 is inclined from left to right and corresponds to the discharge port 8 at the lower middle part of the box 1, guiding the small seeds to the discharge port 8 and into the corresponding collection box 9. Larger seeds slide to the right along the first screen plate 40 to the connecting plate 41 and then fall onto the second screen plate 43, which is inclined from left to right and has large mesh size. Oversized seeds remain on the second screen plate 43 and slide towards the discharge port 8 at the lower middle part of the right end of the box 1, falling into the corresponding collection box 9. Medium-sized seeds fall through the mesh of the second screen plate 43 to the lower right part of the inner wall of the box 1 and slide towards the discharge port 8 at the lower right end of the box 1, falling into the corresponding collection box 9, thus completing the multi-stage screening and collection of seeds.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A seed screening device for agricultural production, comprising a housing (1), characterized in that: The front left and front right of the box (1) are equipped with protective doors (2) by hinges. The upper left, lower left and lower right inner walls of the box (1) are provided with sliding grooves (3). The three sliding grooves (3) are provided with a screening mechanism (4). The upper left of the box (1) is provided with a feeding and impurity removal mechanism (5). The lower left and lower right of the box (1) are provided with support frames (6). The lower ends of the two support frames (6) are provided with a placement plate (7). The lower middle, lower right and lower right of the box (1) are provided with discharge ports (8). The lower middle, lower right and lower right of the box (1) are provided with collection boxes (9) by T-slots. The lower right inner wall of the box (1) is inclined with the left side higher than the right side. The screening mechanism (4) includes a first screen plate (40), a connecting plate (41) is provided at the lower right end of the first screen plate (40), a feeding plate (42) is provided at the lower left end of the connecting plate (41), a second screen plate (43) is provided at the lower right end of the connecting plate (41), a hand groove (44) is provided at the front end of the connecting plate (41), a hand lever (45) is provided inside the hand groove (44), and a slider (46) is provided at one end of the first screen plate (40), the feeding plate (42), and the second screen plate (43) near the inner wall of the box (1).

2. The seed screening device for agricultural production according to claim 1, characterized in that: The first sieve plate (40) and the second sieve plate (43) are both inclined with the left side higher than the right side. The mesh diameter on the first sieve plate (40) is smaller than the mesh diameter on the second sieve plate (43).

3. The seed screening device for agricultural production according to claim 1, characterized in that: The feed plate (42) is inclined on the left and high on the right. The feed plate (42) and the second screen plate (43) correspond to the positions of the two discharge ports (8) at the top.

4. The seed screening device for agricultural production according to claim 2, characterized in that: The first screen plate (40), the feeding plate (42), and the second screen plate (43) are all slidably installed inside the three slide grooves (3) by sliders (46). The second screen plate (43) corresponds to the right side of the inner lower wall of the box body (1).

5. The seed screening device for agricultural production according to claim 1, characterized in that: The feeding and cleaning mechanism (5) includes a support plate (50), a conveying cylinder (51) is provided at the upper end of the support plate (50), a feeding port (52) is provided at the upper right side of the conveying cylinder (51), a motor (53) is fixedly installed at the middle of the right end of the conveying cylinder (51), a spiral conveying blade (54) is fixedly installed at the output end of the motor (53) through a rotating rod, a feeding cylinder (55) is provided at the lower left side of the conveying cylinder (51), the feeding cylinder (55) is inserted and fixedly installed at the upper left side of the box (1), a dust collection hood (56) is fixedly installed at the rear end of the feeding cylinder (55) through an installation port, a conveying pipe (57) is provided at the rear end of the dust collection hood (56), a collection box (58) is provided at the lower end of the conveying pipe (57), and a vacuum cleaner (59) is provided at the left end of the collection box (58).

6. The seed screening device for agricultural production according to claim 5, characterized in that: The feed cylinder (55) and the feed cylinder (55) are internally connected, and the feed cylinder (55) is located above the first screen plate (40).

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