Seed screening system
By designing a seed screening system, the automatic separation of seed density and particle size is achieved using centrifugal ventilators and spiral separation components, solving the problem of traditional screening efficiency, improving screening efficiency and equipment adaptability, and maintaining seed integrity.
Patent Information
- Application Number
- CN202422075381.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-08-26
AI Technical Summary
In the prior art, seed screening efficiency is low, making it difficult to effectively separate full and shriveled seeds, and traditional methods have poor adaptability to different seed screening requirements.
A seed screening system is designed, including a centrifugal fan, multiple transmission devices and spiral separation components, using gravity and spiral channels for seed separation, combined with switchable discharge ports and dust covers, to achieve automated separation of seed density and particle size.
The continuity and automation of seed screening are achieved, screening efficiency is improved, manual intervention is reduced, energy consumption and mechanical wear are reduced, seed integrity is maintained, and a variety of screening needs are adapted.
Smart Images
Figure CN223197498U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a seed screening system and belongs 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 system for 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 system comprises a centrifugal fan, a first transmission device, a seed screening device, a second transmission device and a collection bin which are sequentially arranged along a production line; a third transmission device is further arranged between the first transmission device and the collection bin.
[0010] Optionally, the first transmission device includes at least two discharge ports, each of which is provided with a discharge pipe, and at least two of the discharge pipes lead to a seed screening device or a third transmission device respectively; a switching device for switching different discharge ports to open is provided at the connection between the multiple discharge ports.
[0011] Optionally, the seed screening device includes a bracket, which is provided with 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.
[0012] Optionally, the bracket is further provided with a dust cover.
[0013] 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.
[0014] Optionally, the spiral separation component includes at least one column, the collection component includes a seed collection trough, and the seed collection trough is arranged along the arrangement direction of the spiral separation component; when the spiral separation component includes 2n columns, the seed collection trough includes a first seed collection trough and a second seed collection trough, the first seed collection trough is arranged between every two columns of the spiral separation component, and the second seed collection trough is arranged between the first seed collection trough and the second transmission device.
[0015] Optionally, a conveyor belt facing the second transmission device is provided below the seed collecting trough; or, a vibration device is further included, and the seed collecting trough is tilted toward the second transmission device, and the vibration device drives the seed collecting trough to vibrate.
[0016] Optionally, the collection component further includes an impurity collection tank.
[0017] Optionally, an opening is provided at the bottom of the collecting bin, and a switch is provided on the opening.
[0018] Optionally, the first and second transmission devices are lifting transmission devices, and the third transmission device is a horizontal transmission device; the conveying tail end of the first transmission device is located above the seed screening device; the conveying tail ends of the second and third transmission devices are located above the collection bin.
[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0020] 1. This utility model provides a seed screening system with a simple structural design that is easy to operate and maintain. The system is arranged in an assembly line sequence, ensuring the continuity and automation of the seed screening process, reducing manual intervention and improving overall operational efficiency. The system may include multiple transmission processes to accommodate different screening needs.
[0021] 2. The utility model provides a seed screening system that can 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. And 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
[0022] Figure 1 It is the main view of the present utility model.
[0023] Figure 2 It is a top view of the present utility model.
[0024] Markings in the figure: 1- centrifugal fan, 2- first transmission device, 3- seed screening device, 31- bracket, 32- spiral separation component, 33- collection component, 34- dust cover, 4- second transmission device, 5- collection bin, 6- third transmission device. DETAILED DESCRIPTION
[0025] The present invention will be described in detail below with reference to the accompanying drawings.
[0026] 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.
[0027] A seed screening system, such as Figure 1 、 2 As shown, it includes a centrifugal fan 1, a first transmission device 2, a seed screening device 3, a second transmission device 4 and a collection bin 5 which are arranged in sequence along the assembly line. A third transmission device 6 is also provided between the first transmission device 2 and the collection bin 5.
[0028] In this solution, the centrifugal fan 1 is used to generate airflow, which helps to preliminarily remove dust and impurities from the seeds. The first transmission device 2 transmits the seeds from the feed point to the seed screening device 3, which can be a conveyor belt, chute or other transmission equipment to ensure that the seeds enter the screening process smoothly. The seed screening device 3 screens the seeds and removes unqualified seeds, soil and other impurities. The second transmission device 4 transmits the screened seeds from the seed screening device 3 to the collection bin 5, which can be a conveyor belt, chute or other transmission equipment to ensure that the seeds enter the collection stage smoothly. The collection bin 5 is used to finally collect the screened seeds, providing convenience for subsequent processing or packaging. The third transmission device 6 is between the first transmission device 2 and the collection bin 5. When only the centrifugal fan 1 is needed for initial screening, the seeds can be transmitted to the collection bin 5 through the third transmission device 6 without passing through the seed screening device 3. The system arranges various components in sequence along the assembly line, realizing a continuous screening process of seeds and improving screening efficiency.
[0029] In another specific embodiment, the first conveying device 2 includes at least two discharge ports, each of which is provided with a discharge pipe. The at least two discharge pipes lead to the seed screening device 3 or the third conveying device 6, respectively. A switching device is provided at the connection between the multiple discharge ports to switch between opening and closing the different discharge ports. By providing multiple discharge ports and corresponding discharge pipes, the system can flexibly adjust the flow of seeds as needed, delivering seeds to the seed screening device 3 or the third conveying device 6. The switching device can implement switching using a mechanical structure such as a mechanical lever, gear, or connecting rod.
[0030] As another specific embodiment, the seed screening device 3 includes a bracket 31, and the bracket 31 is provided with a spiral separation component 32 and a collection component 33 connected in sequence from top to bottom; the spiral separation component 32 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 33 is provided below the outlet.
[0031] Specifically, the seed mixture is fed into a hopper located above the spiral separation assembly 32. Under the influence of gravity, the seed mixture begins to slide down the spiral channel. During this descent, differences in seed density and particle size cause the seeds to separate within the channel. Due to the combined effects of gravity, friction, and the spiral shape, the heavier, plump seeds tend to migrate outward, gradually settling at the outer edges of the spiral channel. Shrunken seeds, facing less friction and gravity, are more likely to remain in the center of the spiral channel and continue to slide down the spiral. At least two outlets at the end of the spiral channel are located at different radial positions, allowing different types of seeds to be collected at different outlets. The outer outlet is used to collect heavier, plump seeds, while the inner outlet is used to collect shrunken seeds. The separated seeds are discharged from their respective outlets and collected by the collection assembly 33 below. The collection assembly 33 can be a container, bag, or other collection device used to store the different types of seeds separately or for further processing. Preferably, there are three outlets, one for separating plump seeds, one for shrunken seeds, and one for soil.
[0032] In another specific embodiment, the bracket 31 is further provided with a dust cover 34 to prevent the spread of dirt on the seeds. Furthermore, the dust cover 34 is provided with an opening for docking with the discharge pipe. The dust cover 34 prevents dirt and dust carried by the seeds during transport from escaping into the surrounding environment, maintaining a clean workplace and reducing cleanup efforts.
[0033] As another specific embodiment, a screening assembly is further provided between the conveying assembly and the spiral separation assembly 32. The screening assembly can pre-screen the seeds before they enter the spiral separation assembly 32, and classify them into different grades according to their sizes, thereby improving the efficiency and accuracy of subsequent separation steps.
[0034] As another specific embodiment, the screening assembly includes a plurality of screens of different sizes arranged in sequence along the vertical direction. The plurality of screens of different sizes can meet the screening requirements of different seed sizes, making the screening process more flexible and accurate.
[0035] As another specific embodiment, multiple screens are detachably mounted on the bracket 31. This detachable configuration facilitates quick replacement of screens according to varying screening requirements, improving the adaptability of the device. Furthermore, the screens can be removed laterally, allowing the corresponding seeds on the screens to be removed simultaneously, making it easier to access seeds of different sizes.
[0036] As another specific embodiment, the spiral separation components 32 include at least two groups, each group of spiral separation components 32 includes a hopper and a spiral channel; a screening component is commonly set above the at least two groups of spiral separation components 32; and a collection component 33 is commonly set below the at least two groups of spiral separation components 32. At least two groups of spiral separation components 32 can operate 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 components 32 can share the screening component and the collection component 33, reducing the equipment's footprint and cost. Through the preliminary grading of the screening component, it can be ensured that the seeds processed by each group of spiral separation components 32 are more uniform, thereby improving separation accuracy.
[0037] As another specific embodiment, the spiral separation assembly 32 includes at least one column, and the collection assembly 33 includes a seed collection trough, which is arranged along the arrangement direction of the spiral separation assembly 32; when the spiral separation assembly 32 includes 2n columns, the seed collection trough includes a first seed collection trough and a second seed collection trough, the first seed collection trough being arranged between every two columns of the spiral separation assembly 32, and the second seed collection trough being arranged between the first seed collection trough and the second transmission device 4. After being separated from multiple spiral separation assemblies 32, the seeds directly enter the same collection trough, which improves the collection efficiency and reduces the loss of seeds during the collection process. In addition, the seeds separated by all the spiral separation assemblies 32 can be collected centrally, facilitating unified processing in the next step. The seed collection trough is located between two columns of spiral separation assemblies 32, and can conveniently collect the separated seeds from the spiral separation assemblies 32 on both sides, realizing centralized collection. The equipment can be designed more compactly, saving space.
[0038] As another specific embodiment, a conveyor belt facing the second transmission device 4 is provided below the seed collecting trough; or, a vibration device is further included, and the seed collecting trough is tilted toward the second transmission device 4, and the vibration device drives the seed collecting trough to vibrate. The design of the conveyor belt and the vibration device can quickly transport the collected seeds from the collection trough to the second transmission device 4 for the next processing step, reducing the residence time of the seeds during the collection process. The specific tilted setting of the seed collecting trough facilitates the flow of seeds, making it easier for the seeds to move toward one side of the seed collecting trough. Furthermore, in this solution, the vibration device can be installed on the seed collecting trough, or it can be in contact with the seed collecting trough, thereby driving the seed collecting trough to vibrate.
[0039] As another specific embodiment, the collection assembly 33 further includes an impurity collection trough. Impurities in the impurity collection trough 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 can be used to collect dried seeds or soil.
[0040] As another specific embodiment, the bottom of the collecting bin 5 is provided with an opening, and the opening is provided with a switch. The design of the switch allows an operator to easily open or close the opening at the bottom of the collecting bin 5 to facilitate loading and unloading of seeds.
[0041] As another specific embodiment, the first transmission device 2 and the second transmission device 4 are lifting transmission devices, and the third transmission device 6 is a horizontal transmission device; the conveying tail end of the first transmission device 2 is located above the seed screening device 3; the conveying tail ends of the second transmission device 4 and the third transmission device 6 are located above the collecting bin 5. Since the seed screening device 3 and the collecting bin 5 operate by gravity, no additional power drive is required, which saves energy. Therefore, the first transmission device 2 and the second transmission device 4 are required to transport the seeds upward. After the first transmission device 2 has transported the seeds upward, it only needs to be transported horizontally to the top of the collecting bin 5 through the third transmission device 6. It should be noted that the above term "above" can be obliquely above or directly above, and needs to be designed according to the on-site environment. Furthermore, the centrifugal fan 1 can also be designed on the upper part of the seed screening device 3. In this way, the first transmission device 2 can also be transported horizontally.
[0042] Furthermore, in this embodiment, structures not separately described herein may adopt existing methods, and their structures and connection methods are known to those skilled in the art based on existing technologies.
[0043] 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.
[0044] 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 system, characterized in that: The invention comprises a centrifugal fan (1), a first transmission device (2), a seed screening device (3), a second transmission device (4) and a collection bin (5) which are sequentially arranged along the production line. A third transmission device (6) is further arranged between the first transmission device (2) and the collection bin (5). The seed screening device (3) comprises a bracket (31), and the bracket (31) is provided with a spiral separation component (32) and a collection component (33) which are sequentially connected from top to bottom; the spiral separation component (32) comprises a hopper, and a spiral channel with a vertical axis is provided below the hopper. The tail end of the spiral channel is provided with at least two outlets, and the two outlets are respectively provided at different radial positions of the spiral channel; and a collection component (33) is provided below the outlet.
2. The seed screening system according to claim 1, wherein: The first transmission device (2) includes at least two discharge ports, each of which is provided with a discharge pipe, and at least two of the discharge pipes lead to the seed screening device (3) or the third transmission device (6) respectively; a switching device for switching the opening of different discharge ports is provided at the connection of the multiple discharge ports.
3. The seed screening system according to claim 1, wherein: The bracket (31) is also provided with a dust cover (34).
4. The seed screening system according to claim 1, wherein: The spiral separation components (32) include at least two groups, each group of spiral separation components (32) includes a hopper and a spiral channel; a screening component is commonly set above the at least two groups of spiral separation components (32); and the collecting component (33) is commonly set below the at least two groups of spiral separation components (32).
5. The seed screening system according to claim 4, wherein: The spiral separation component (32) includes at least one column, and the collection component (33) includes a seed collection trough, and the seed collection trough is arranged along the arrangement direction of the spiral separation component (32); when the spiral separation component (32) includes 2n columns, the seed collection trough includes a first seed collection trough and a second seed collection trough, the first seed collection trough is arranged between every two columns of the spiral separation component (32), and the second seed collection trough is arranged between the first seed collection trough and the second transmission device (4).
6. The seed screening system according to claim 5, wherein: A conveyor belt is provided below the seed collecting trough and is directed toward the second transmission device (4); or a vibration device is further provided, wherein the seed collecting trough is tilted toward the second transmission device (4), and the vibration device drives the seed collecting trough to vibrate.
7. The seed screening system according to claim 5, wherein: The collecting assembly (33) further comprises an impurity collecting tank.
8. The seed screening system according to claim 1, wherein: The bottom of the collecting bin (5) is provided with an opening, and a switch is provided on the opening.
9. The seed screening system according to claim 1, wherein: The first transmission device (2) and the second transmission device (4) are lifting transmission devices, and the third transmission device (6) is a horizontal transmission device; the conveying tail end of the first transmission device (2) is located above the seed screening device (3); the conveying tail ends of the second transmission device (4) and the third transmission device (6) are located above the collection bin (5).