Seed screening device

Abstract

The utility model discloses a seed screening device which comprises a support, and the support is provided with a conveying assembly, a spiral separating assembly and a collecting assembly which are sequentially communicated from top to bottom. The spiral separation assembly comprises a hopper, a spiral channel with a vertical axis is arranged below the hopper, at least two outlets are formed in the tail end of the spiral channel, and the two outlets are formed in different radial positions of the spiral channel respectively; and a collecting assembly is arranged below the outlet. As the separation process is mild and depends on gravity instead of strong mechanical force, damage to the seeds can be reduced, and the integrity of the seeds is kept. The conveying assembly, the separating assembly and the collecting assembly are effectively connected, continuous and automatic screening of the seeds can be achieved, manual operation is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a seed screening device, belonging to the field of seed screening equipment. Background Art

[0002] In recent years, with the country's increasing emphasis on agriculture, seeds, as the "chip" of agricultural development and the lifeblood of agriculture, have become a key goal for my country's agricultural development in the new era. High-quality seed production and propagation processes are crucial for improving seed quality. High-quality seeds can significantly increase germination rates and uniform emergence. Precision sowing with machines reduces seeding amounts and lowers costs. Full, high-quality seeds ensure more uniform crop growth later in life, facilitating mechanical detasseling and harvesting, and improving operational efficiency.

[0003] Agricultural production mainly relies on the following traditional screening methods:

[0004] (1) Manual screening: Through manual selection, high-quality seeds are separated from low-quality seeds and impurities. However, manual screening is inefficient and not suitable for large-scale seed screening.

[0005] (2) Water flotation screening: Use buoyancy to separate high-quality seeds from low-quality seeds. However, many crop seeds cannot be soaked in water before planting, which limits the application of water flotation screening.

[0006] (3) Screening: Use screens with different apertures to separate seeds by size. However, this method requires the replacement of different screens for different types of seeds, resulting in a cumbersome process and low efficiency. In addition, it can only separate seeds of different sizes, but not seeds of different fullness. Utility Model Content

[0007] The purpose of the utility model is to provide a seed screening device to solve the above-mentioned problems, which can separate plump seeds from shriveled seeds.

[0008] The technical solutions adopted in this utility model are as follows:

[0009] A seed screening device includes a bracket, which is provided with a conveying component, a spiral separation component and a collection component connected in sequence from top to bottom; the spiral separation component includes a hopper, and a spiral channel with a vertical axis is provided below the hopper, and at least two outlets are provided at the tail end of the spiral channel, and the two outlets are respectively provided at different radial positions of the spiral channel; a collection component is provided below the outlet.

[0010] Optionally, the bracket is further provided with a dust cover; the conveying assembly includes a conveying pipe, and the dust cover is provided with an opening for docking with the conveying pipe.

[0011] Optionally, a screening component is provided between the conveying component and the spiral separation component.

[0012] Optionally, the screening assembly includes a plurality of screens of different sizes sequentially arranged in an up-down direction.

[0013] Optionally, a plurality of the screens are detachably mounted on the bracket.

[0014] Optionally, the spiral separation components include at least two groups, each group of spiral separation components includes a hopper and a spiral channel; a screening component is commonly set above at least two groups of spiral separation components; and a collecting component is commonly set below at least two groups of spiral separation components.

[0015] Optionally, the spiral separation component includes at least one column, and the collecting component includes a seed collecting trough, and the seed collecting trough is arranged along the arrangement direction of the spiral separation component.

[0016] Optionally, the spiral separation component includes two columns, and the seed collecting trough is arranged between the two columns of spiral separation components.

[0017] Optionally, a conveyor belt is provided below the seed collecting trough; or, a vibration device is further included, and the seed collecting trough is arranged at an angle, and the vibration device drives the seed collecting trough to vibrate.

[0018] Optionally, the collection component further includes an impurity collection tank.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] The utility model provides a seed screening device, which is composed of a conveying component, a spiral separation component and a collection component connected in sequence. The structural design is simple and easy to operate and maintain. The spiral separation component can be used to effectively separate seeds according to their density and particle size differences. Since the spiral separation component relies on gravity to work and does not require additional power to drive the spiral, the energy consumption is low, which is conducive to energy conservation. The spiral separation component has no moving parts, which reduces mechanical wear and maintenance costs, making the entire device more durable. Since the separation process is relatively gentle and relies on gravity rather than strong mechanical force, it can reduce damage to the seeds and maintain the integrity of the seeds. In addition, by effectively connecting the conveying, separation and collection components, continuous automatic screening of seeds can be achieved, reducing manual operations and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the main view of the present utility model.

[0022] Figure 2This is a schematic diagram of the exit.

[0023] Markings in the figure: 1- bracket, 2- conveying assembly, 3- spiral separation assembly, 31- outlet, 32- hopper, 33- spiral channel, 4- collecting assembly, 41- seed collecting trough, 42- impurity collecting trough, 5- dust cover, 6- screening assembly, 61- screen. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings.

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] A seed screening device, such as Figure 1 、 2 As shown, it includes a bracket 1, and the bracket 1 is provided with a conveying component 2, a spiral separation component 3 and a collection component 4 that are connected in sequence from top to bottom; the spiral separation component 3 includes a hopper 32, and a spiral channel 33 with a vertical axis is provided below the hopper 32, and the tail end of the spiral channel 33 is provided with at least two outlets 31, and the two outlets 31 are respectively provided at different radial positions of the spiral channel 33; a collection component 4 is provided below the outlet 31.

[0027] Specifically, the seed mixture is fed into a hopper 32 via a conveyor assembly 2, located above the spiral separation assembly 3. Under the influence of gravity, the seed mixture begins to descend along the spiral channel 33. During this descent, differences in seed density and particle size cause the seeds to separate within the channel 33. Heavier, plump seeds, due to the combined effects of gravity, friction, and the spiral shape, tend to migrate outward, gradually settling at the outer edges of the channel 33. Shrunken seeds, facing less friction and gravity, are more likely to remain in the center of the channel 33, continuing to slide downward along the spiral. At least two outlets 31 at the end of the spiral channel 33 are located at different radial positions, allowing different types of seeds to be collected at different outlets 31. The outer outlet 31 collects heavier, plump seeds, while the inner outlet 31 collects shrunken seeds. The separated seeds are discharged from their respective outlets 31 and collected by the collection assembly 4 below. The collection assembly 4 can be a container, bag, or other collection device used to store different seed types separately or for further processing. Preferably, the outlets 31 include three, which are used to separate full seeds, shriveled seeds and soil respectively.

[0028] In another specific embodiment, the support 1 is further provided with a dust cover 5 to prevent the spread of dirt on the seeds. The conveying assembly 2 includes a conveying tube, and the dust cover 5 is provided with an opening for docking with the conveying tube. The dust cover 5 prevents dirt and dust carried by the seeds during conveyance from dispersing into the surrounding environment, thereby maintaining a clean workplace and reducing cleanup work.

[0029] As another specific embodiment, a screening component 6 is further provided between the conveying component 2 and the spiral separation component 3. The screening component 6 can pre-screen the seeds before they enter the spiral separation component 3, and classify the seeds into different grades according to their sizes, thereby improving the efficiency and accuracy of the subsequent separation steps.

[0030] As another specific embodiment, the screening assembly 6 includes a plurality of screens 61 of different sizes arranged in sequence along the vertical direction. The plurality of screens 61 of different sizes can meet the screening requirements of different seed sizes, making the screening process more flexible and accurate.

[0031] As another specific embodiment, multiple screens 61 are detachably mounted on the support 1. The detachable configuration of the screens 61 facilitates quick replacement of the screens 61 according to different screening requirements, thereby improving the adaptability of the device. Furthermore, the screens can be removed horizontally, allowing the corresponding seeds on the screens to be removed simultaneously, making it convenient to retrieve seeds of different sizes.

[0032] As another specific embodiment, the spiral separation assembly 3 includes at least two groups, each group of spiral separation assemblies 3 includes a hopper 32 and a spiral channel 33; the screening assembly 6 is commonly set above the at least two groups of spiral separation assemblies 3; and the collection assembly 4 is commonly set below the at least two groups of spiral separation assemblies 3. At least two groups of spiral separation assemblies 3 can work simultaneously, improving the processing capacity of the equipment and being suitable for large-scale seed screening needs. In addition, at least two groups of spiral separation assemblies 3 can share the screening assembly 6 and the collection assembly 4, reducing the equipment's footprint and cost. The preliminary grading by the screening assembly 6 ensures that the seeds processed by each group of spiral separation assemblies 3 are more uniform, thereby improving separation accuracy.

[0033] In another specific embodiment, the spiral separation assembly 3 includes at least one row, and the collection assembly 4 includes a seed collection trough 41, which is arranged along the arrangement direction of the spiral separation assemblies 3. After being separated by multiple spiral separation assemblies 3, the seeds directly enter the same collection trough, thereby improving collection efficiency and reducing seed loss during the collection process. Furthermore, seeds separated by all spiral separation assemblies 3 can be collected centrally, facilitating unified processing in the next step.

[0034] In another specific embodiment, the spiral separation assembly 3 includes two rows, and the seed collection trough 41 is disposed between the two rows of spiral separation assemblies 3. The seed collection trough 41 located between the two rows of spiral separation assemblies 3 facilitates collection of separated seeds from the spiral separation assemblies 3 on both sides, enabling centralized collection. This allows for a more compact device design, saving space. Specifically, the spiral separation assemblies 3 can be arranged in 2n rows, with a seed collection trough 41 disposed between each two rows of spiral separation assemblies 3.

[0035] As another specific embodiment, a conveyor belt is provided below the seed collecting trough 41; or, a vibration device is further included, and the seed collecting trough 41 is tilted, and the vibration device drives the seed collecting trough 41 to vibrate. The design of the conveyor belt and the vibration device can quickly transport the collected seeds from the collection trough to the next processing step, reducing the residence time of the seeds during the collection process. The specific tilted setting of the seed collecting trough 41 facilitates the flow of seeds, making it easier for the seeds to move toward one side of the seed collecting trough 41. Furthermore, in this solution, the vibration device can be installed on the seed collecting trough 41, or it can be in contact with the seed collecting trough 41, thereby driving the seed collecting trough 41 to vibrate.

[0036] As another specific embodiment, the collection assembly 4 further includes an impurity collection trough 42. Impurities in the impurity collection trough 42 can be conveniently disposed of, such as discarded or further cleaned, facilitating cleaning and maintenance, thereby helping to maintain long-term stable operation of the device. Specifically, the impurity collection trough 42 can be used to collect dried seeds or soil.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The present invention extends to any new features or any new combinations disclosed in this specification, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0038] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

Claims

1. A seed screening device, characterized in that: The invention comprises a support (1), wherein the support (1) is provided with a conveying assembly (2), a spiral separation assembly (3) and a collection assembly (4) which are connected in sequence from top to bottom; the spiral separation assembly (3) comprises a hopper (32), a spiral channel (33) with a vertical axis is provided below the hopper (32), at least two outlets (31) are provided at the tail end of the spiral channel (33), and the two outlets (31) are respectively provided at different radial positions of the spiral channel (33); and a collection assembly (4) is provided below the outlet (31).

2. The seed screening device according to claim 1, characterized in that: The bracket (1) is further provided with a dust cover (5); the delivery assembly (2) includes a delivery pipe, and the dust cover (5) is provided with an opening for docking with the delivery pipe.

3. The seed screening device according to claim 1, wherein: A screening component (6) is also provided between the conveying component (2) and the spiral separation component (3).

4. The seed screening device according to claim 3, characterized in that: The screening assembly (6) comprises a plurality of screens (61) of different sizes sequentially arranged in the up and down directions.

5. The seed screening device according to claim 4, characterized in that: The plurality of screens (61) are detachably arranged on the bracket (1).

6. The seed screening device according to claim 3, wherein: The spiral separation components (3) include at least two groups, each group of spiral separation components (3) includes a hopper (32) and a spiral channel (33); a screening component (6) is commonly arranged above the at least two groups of spiral separation components (3); and a collecting component (4) is commonly arranged below the at least two groups of spiral separation components (3).

7. The seed screening device according to claim 6, characterized in that: The spiral separation component (3) comprises at least one column, and the collection component (4) comprises a seed collection trough (41), wherein the seed collection trough (41) is arranged along the arrangement direction of the spiral separation component (3).

8. The seed screening device according to claim 7, characterized in that: The spiral separation assembly (3) comprises two rows, and the seed collecting trough (41) is arranged between the two rows of spiral separation assemblies (3).

9. The seed screening device according to claim 7, wherein: A conveyor belt is provided below the seed collecting trough (41); or, a vibration device is further provided, the seed collecting trough (41) is arranged obliquely, and the vibration device drives the seed collecting trough (41) to vibrate.

10. The seed screening device according to claim 1, wherein: The collection assembly (4) further comprises an impurity collection tank (42).

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