A classer for sunflower seed processing
By combining an adjustable-angle screen support and a sorting plate, the problem of the inflexible adjustment of the existing grading machine screen structure is solved, enabling efficient multiple screening and dispersion of sunflower seeds, and ensuring grading accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIUQUAN XIN NONGYAN SEED TECHNOLOGY CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-06-02
AI Technical Summary
The existing grading machine's screen structure cannot be flexibly adjusted, making it difficult to achieve fine screening and efficient grading. Furthermore, seed clumping can easily lead to inaccurate grading and screen blockage.
The system employs an adjustable first and second screen support structure, combined with a sorting plate and a dust collection device, to achieve multiple screenings and seed dispersion, preventing clumping and improving grading accuracy and efficiency.
It enables flexible adjustment of the screening angle based on seed characteristics, multiple screenings to avoid seed clumping, improve grading accuracy and efficiency, reduce the risk of clogging, and meet the requirements for high-quality grading.
Smart Images
Figure CN224308962U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grading machine technology, specifically a grading machine for sunflower seed processing. Background Technology
[0002] In agricultural production, sunflower seed grading is a crucial step in seed processing, directly impacting seed quality, sowing effectiveness, and the yield and quality of subsequent agricultural products. High-quality grading effectively distinguishes seeds of different sizes, providing strong support for precise sowing and crop growth.
[0003] Reference patent (Publication No.: CN218014011U; Publication Date: 2022-12-13) discloses a grading machine for sunflower seed processing, including a movable base. A grading box is mounted on the top of the movable base, and a feed hopper extends into the top of the grading box. A screening component is mounted on the left side of the inner wall of the grading box, fitting against its right side. A guide plate is mounted on the right side of the inner wall of the grading box, located below the screening component. A discharge port is located on the right side of the inner wall of the grading box, between the screening component and the guide plate. A collection frame is mounted on the bottom wall of the grading box. By using the feed hopper, sunflower seeds are poured into its interior. Intermittent feeding is achieved through the cooperation of a drive motor, a rotating shaft, and a feeding wheel, preventing excessive feeding at once and thus avoiding screen blockage. This greatly improves the practicality of the device and makes it easier for operators to use.
[0004] Based on the aforementioned patents, most grading machines use a fixed-angle screen structure, which cannot be flexibly adjusted according to the actual characteristics of the seeds and different grading requirements. When faced with seeds with small size differences, it is difficult to achieve fine screening. When processing a large number of seeds, it is also impossible to improve screening efficiency by adjusting the screen angle, resulting in poor flexibility and adaptability of the grading operation. Furthermore, most existing grading machines only have a single screen, which cannot screen the seeds multiple times during the grading process, making it difficult to completely separate seeds of different sizes. In addition, sunflower seeds are prone to clumping during storage and transportation. Existing grading equipment lacks an effective seed dispersion processing mechanism. When clumped seeds enter the screen, it not only leads to inaccurate grading but also easily causes screen blockage. Therefore, this utility model provides a grading machine for sunflower seed processing. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a grading machine for sunflower seed processing. It solves the problem that most grading machines use a fixed-angle screen structure, which cannot be flexibly adjusted according to the actual characteristics of the seeds and different grading requirements. When dealing with seeds with small size differences, it is difficult to achieve fine screening. Furthermore, when processing large quantities of seeds, it is impossible to improve screening efficiency by adjusting the screen angle, resulting in poor flexibility and adaptability in grading operations. Moreover, most existing grading machines only have a single screen, making it impossible to screen seeds multiple times during the grading process, and it is difficult to comprehensively separate seeds of different sizes. In addition, sunflower seeds are prone to clumping during storage and transportation. Existing grading equipment lacks an effective seed dispersion mechanism; clumped seeds entering the screen not only lead to inaccurate grading but also easily cause screen blockage.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a grading machine for sunflower seed processing, comprising a grading shell, wherein a grading mechanism for sunflower seed processing is disposed within the grading shell, the grading mechanism comprising:
[0007] The grading assembly includes a first screen support rotatably connected to the inner wall of the grading housing via a rotating shaft, a second screen support is provided below the first screen support, and a pusher assembly for angle adjustment is provided at the outlet end of the first screen support.
[0008] The dispersing component includes a supporting shell fixed to the inner wall of the grading shell. A sorting plate connected to the lower end of the supporting shell is provided via a gear assembly. The sorting plate has uniformly distributed through holes inside. A baffle is uniformly fixed to the edge of the sorting plate. A conduit is fixed through the upper end of the outlet of the grading shell. A dust collection shell is fixed to one end of the conduit extending into the interior of the grading shell. A filter support is fixed to the inner wall of the dust collection shell.
[0009] Preferably, the pore size of the first screen support is larger than that of the second screen support.
[0010] Preferably, the pushing assembly includes a fixing plate fixed to the outer wall of the grading shell, a pair of positioning rods slidably connected through the inside of the fixing plate, a support plate fixed to the top of the positioning rods, a support roller for supporting the first screen support provided at the upper end of the support plate, and a screw threadedly connected to the center of the fixing plate, the top of the screw being rotatably connected to the support plate.
[0011] Preferably, the gear assembly includes a drive rod that extends through the side of the graded housing, a first bevel gear that is fixed to one end of the drive rod extending into the interior of the support housing, a connecting shaft that is rotatably connected to the vertical direction of the support housing, a second bevel gear that is fixed to one end of the connecting shaft near the first bevel gear, the first bevel gear and the second bevel gear being meshed together, and the sorting plate being fixedly connected to the lower end of the connecting shaft.
[0012] Preferably, the conduit extends to one end of the outer side of the grading shell and is fixed to a collection shell, the side wall of which is provided with an opening and closing plate connected by bolts.
[0013] Preferably, an annular baffle is fixed to the side wall of the dust collection housing.
[0014] Beneficial effects
[0015] This utility model provides a grading machine for sunflower seed processing, which has the following advantages compared with the prior art:
[0016] Firstly, this invention, through the cooperation of components such as the screw, support plate, and support roller in the push assembly, allows for flexible adjustment of the angle of the first screen support according to the actual characteristics of the seeds and grading requirements. When the seed size difference is small and more precise screening is required, the angle of the first screen support can be reduced, allowing the seeds to remain on the screen for a longer time. When a large number of seeds need to be processed quickly, the angle can be increased to improve screening efficiency. The two-stage screening structure of the first and second screen supports, with different pore sizes, enables multiple screenings of sunflower seeds, effectively improving the accuracy and efficiency of grading. Compared with single-screen grading, it can more comprehensively separate seeds of different specifications, meeting the market's high requirements for seed grading quality. By adjusting the angle of the first screen support, it can adapt to the grading requirements of different varieties and batches of sunflower seeds. Regardless of differences in seed size, shape, or moisture content, a good grading effect can be achieved by reasonably adjusting the angle, making it widely applicable.
[0017] Secondly, when sunflower seeds that have entered the grading shell fall onto the rotating sorting plate, this invention can disperse any clumps of seeds. The seeds are then evenly distributed onto the screen support through the through-holes in the sorting plate. Furthermore, baffles are evenly fixed at the edges of the sorting plate to disperse the rotating seeds, ensuring that each seed is thoroughly screened. This avoids inaccurate grading and screen clogging caused by seed clumping, improving the reliability of the grading process. It ensures that the seeds make fuller contact with the screen on the screen support, giving each seed an equal chance to pass through the corresponding size of the screen openings, thus improving grading efficiency. The dispersed seeds do not stick together, preventing interference with the screening process, and the even distribution allows the screen to function effectively, reducing the need for repeated screening and manual intervention. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of the graded outer shell of this utility model;
[0020] Figure 3 This is a schematic diagram of the support plate lifting connection structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the rotating structure of the sorting plate of this utility model;
[0022] Figure 5 This is a schematic diagram of the main structure of the dust collection shell of this utility model.
[0023] In the diagram: 1. Grading shell; 2. First screen support; 201. Second screen support; 3. Fixing plate; 301. Positioning rod; 302. Support plate; 303. Support roller; 304. Screw; 4. Guide tube; 401. Collection shell; 402. Opening and closing plate; 5. Dust collection shell; 501. Filter support; 502. Annular baffle; 6. Support shell; 601. Connecting shaft; 602. Sorting plate; 603. Through hole; 604. Stop bar; 7. Drive rod; 701. First bevel gear; 702. Second bevel gear. Detailed Implementation
[0024] 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.
[0025] Please see Figures 1-5 This utility model provides a technical solution: a grading machine for sunflower seed processing, including a grading shell 1, and a grading mechanism for sunflower seed processing disposed inside the grading shell 1, the grading mechanism including:
[0026] The grading assembly includes a first screen support 2 rotatably connected to the inner wall of the grading housing 1 via a rotating shaft, a second screen support 201 disposed below the first screen support 2, and a push assembly for angle adjustment disposed at the outlet end of the first screen support 2.
[0027] The dispersing component includes a supporting shell 6 fixed to the inner wall of the grading shell 1. A sorting plate 602 connected to the lower end of the supporting shell 6 via a gear assembly is provided. Through holes 603 are evenly opened inside the sorting plate 602. Baffles 604 are evenly fixed at the edge of the sorting plate 602. A conduit 4 is fixed through the upper end of the outlet of the grading shell 1. A dust collection shell 5 is fixed to one end of the conduit 4 extending into the interior of the grading shell 1. A filter support 501 is fixed to the inner wall of the dust collection shell 5.
[0028] In a preferred embodiment, the aperture of the first screen support 2 is larger than that of the second screen support 201. The pushing assembly includes a fixing plate 3 fixed to the outer wall of the grading shell 1. A pair of positioning rods 301 are slidably connected through the interior of the fixing plate 3. A support plate 302 is fixed to the top of the positioning rods 301. A support roller 303 for supporting the first screen support 2 is provided at the upper end of the support plate 302. A screw 304 is threadedly connected to the center of the fixing plate 3. The top of the screw 304 is rotatably connected to the support plate 302. When the graded sunflower seeds enter the grading shell 1, they first fall onto the first screen support 2. Because the aperture of the first screen support 2 is larger, smaller seeds will pass through the aperture of the first screen support 2 first and fall directly onto the second screen support below. Larger seeds are placed on the second screen support 201, while larger seeds remain on the first screen support 2. When it is necessary to adjust the angle of the first screen support 2 to change the movement speed and screening effect of the seeds, the screw 304 is rotated. Because the center of the fixed plate 3 is threadedly connected to the screw 304, and the top of the screw 304 is rotatably connected to the support plate 302, the screw 304 moves up and down on the fixed plate 3 as it rotates. When the screw 304 moves upward, it drives the support plate 302 to move upward. At this time, the support plate 302 maintains a stable rise through the sliding guide inside the fixed plate 3 by the positioning rod 301. The rise of the support plate 302 causes the support roller 303 to push upward against the outlet end of the first screen support 2, so that the first... The screen support 2 rotates around the rotating shaft. As the angle increases, the seeds roll faster on the first screen support 2, improving screening efficiency. Conversely, the screw 304 moves downwards, decreasing the angle of the first screen support 2 and slowing the seed rolling speed, resulting in more thorough screening. Larger seeds remaining on the first screen support 2 roll out from the outlet end under their own gravity, completing the first grading. Seeds falling onto the second screen support 201 undergo a second grading due to the smaller pores of the second screen support 201. Smaller seeds fall through the pores of the second screen support 201, and the remaining seeds roll out from the outlet end of the second screen support 201, completing the second grading. This ultimately achieves the graded collection of sunflower seeds of different sizes, achieved through a jacking mechanism. The screw 304, support plate 302, and support roller 303 in the assembly allow for flexible adjustment of the angle of the first screen support 2 according to the characteristics of the seeds and grading requirements. When the seed size difference is small and finer screening is needed, the angle of the first screen support 2 can be reduced, allowing the seeds to remain on the screen for a longer time. When a large number of seeds need to be processed quickly, the angle can be increased to improve screening efficiency. The two-stage screening structure of the first screen support 2 and the second screen support 201, with different pore sizes, enables multiple screenings of sunflower seeds, effectively improving the accuracy and efficiency of grading. Compared to single-screen grading, it can more comprehensively separate seeds of different sizes, meeting the market's high requirements for seed grading quality. This can be achieved by adjusting the angle of the first screen support 2.It can adapt to the grading needs of different varieties and batches of sunflower seeds. Regardless of differences in seed size, shape, or moisture content, it can achieve good grading results by reasonably adjusting the angle, making it widely applicable.
[0029] In a preferred embodiment, the gear assembly includes a drive rod 7 that extends through the side of the grading housing 1. The drive rod 7 extends into the interior of the support housing 6 and a first bevel gear 701 is fixed at one end. The support housing 6 is rotatably connected to a connecting shaft 601 in the vertical direction. A second bevel gear 702 is fixed at one end of the connecting shaft 601 near the first bevel gear 701. The first bevel gear 701 and the second bevel gear 702 are meshed together. The sorting plate 602 is located at the lower end of the connecting shaft 601 and is fixedly connected.
[0030] Specifically, the drive rod 7 is driven by a motor, and the connecting shaft 601 rotates under the action of the drive rod 7 via the second bevel gear 702 and the first bevel gear 701. This causes the sorting plate 602 at the lower end of the connecting shaft 601 to rotate. When sunflower seeds that have entered the grading shell 1 fall onto the rotating sorting plate 602, the clumps of seeds can be dispersed. The seeds are then evenly distributed onto the screen support through the through holes 603 on the sorting plate 602. Baffles 604 are evenly fixed at the edges of the sorting plate 602 to disperse the rotating seeds, ensuring that each seed is fully screened. This avoids inaccurate grading and screen blockage caused by seed clumping, improving the reliability of grading. It ensures that the seeds can fully contact the screen on the screen support, giving each seed an equal chance to pass through the corresponding size of the screen holes, thus improving grading efficiency. The dispersed seeds do not stick together and affect the screening, and the even distribution allows the screen to function effectively, reducing repeated screening and manual intervention.
[0031] In a preferred embodiment, the conduit 4 extends to one end of the outer side of the grading housing 1 and is fixed to a collection housing 401. The side wall of the collection housing 401 is provided with an opening and closing plate 402 connected by bolts. The side wall of the dust collection housing 5 is fixed with an annular baffle 502. A pump body for dust collection is fixed to one side of the collection housing 401. The seeds dispersed by the rotating sorting plate 602 can loosen impurities and dust on the outside. Then, the dust generated during grading inside the grading housing 1 can be adsorbed by the dust collection housing 5, effectively purifying the grading working environment, reducing the harm of dust to operators, and also reducing dust pollution to surrounding equipment and the environment. The filter support 501 fixed to the inner wall of the dust collection housing 5 can block the seeds and prevent them from being absorbed into the equipment. At the same time, the annular baffle 502 is used to block the seeds from the dust collection housing 5, preventing scattered seeds from entering the equipment. The filter support 501 fixed to the inner wall of the dust collection housing 5 can effectively block the seeds and prevent them from being sucked into the equipment and causing loss. The annular baffle 502 further blocks the seeds from the dust collection housing 5, preventing scattered seeds from accidentally entering the dust collection system. This ensures both the dust collection effect and that all seeds can participate in the grading process, avoiding inaccurate grading quantity due to seed loss, thereby ensuring grading quality and yield.
[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0033] During operation, the graded sunflower seeds enter the grading shell 1 and first fall onto the first screen support 2. Due to the larger pores of the first screen support 2, smaller seeds will pass through the pores first and fall directly onto the second screen support 201 below, while larger seeds remain on the first screen support 2. When it is necessary to adjust the angle of the first screen support 2 to change the movement speed of the seeds on the first screen support 2 and the grading effect, the screw 304 is rotated. Because the center of the fixed plate 3 is threadedly connected to the screw 304, and the top of the screw 304 is rotatably connected to the support plate 302, as the screw 304 rotates, the screw 304 will move up and down on the fixed plate 3. When the screw 304 moves upward, it drives the support plate 302. As the screw moves upward, the support plate 302 slides within the fixed plate 3 via the positioning rod 301, maintaining a stable ascent. The rise of the support plate 302 causes the support roller 303 to push upward against the outlet end of the first screen support 2, causing the first screen support 2 to rotate around the rotating shaft. The angle increases, and the seeds roll faster on the first screen support 2, improving screening efficiency. Conversely, as the screw 304 moves downward, the angle of the first screen support 2 decreases, and the seed rolling speed slows down, resulting in more thorough screening. Larger seeds remaining on the first screen support 2 roll out from the outlet end of the first screen support 2 under their own gravity, completing the first grading. Seeds falling onto the second screen support 201 are screened again due to the smaller pores of the second screen support 201.
[0034] The drive rod 7 is driven by a motor, and the connecting shaft 601 rotates under the action of the drive rod 7 through the second bevel gear 702 and the first bevel gear 701. This causes the sorting plate 602 at the lower end of the connecting shaft 601 to rotate. When the sunflower seeds that have entered the grading shell 1 fall onto the rotating sorting plate 602, the clumps of seeds can be dispersed. The collection shell 401 has a pump body fixed on one side for dust suction. The seeds dispersed by the rotation of the sorting plate 602 can loosen the impurities and dust on the outside. Then, the dust generated during grading inside the grading shell 1 can be absorbed by the dust suction shell 5, effectively purifying the grading working environment.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A grading machine for sunflower seed processing, comprising a grading shell (1), characterized in that: The grading shell (1) is provided with a grading mechanism for sunflower seed processing, the grading mechanism including: The grading assembly includes a first screen support (2) rotatably connected to the inner wall of the grading shell (1) via a rotating shaft, a second screen support (201) is provided below the first screen support (2), and a pusher assembly for angle adjustment is provided at the outlet end of the first screen support (2). The dispersing component includes a supporting shell (6) fixed to the inner wall of the grading shell (1). The lower end of the supporting shell (6) is provided with a sorting plate (602) connected by a gear assembly. The sorting plate (602) has through holes (603) evenly distributed inside. The edge of the sorting plate (602) is evenly fixed with a baffle (604). The upper end of the outlet of the grading shell (1) is fixed with a conduit (4). The conduit (4) extends into the interior of the grading shell (1) and is fixed with a dust-collecting shell (5). The inner wall of the dust-collecting shell (5) is fixed with a filter support (501).
2. The grading machine for sunflower seed processing according to claim 1, characterized in that: The pore size of the first screen support (2) is larger than that of the second screen support (201).
3. A grading machine for sunflower seed processing according to claim 1, characterized in that: The push assembly includes a fixing plate (3) fixed to the outer wall of the graded outer shell (1). A pair of positioning rods (301) are slidably connected through the inside of the fixing plate (3). A support plate (302) is fixed to the top of the positioning rods (301). A support roller (303) for supporting the first screen support (2) is provided at the upper end of the support plate (302). A screw (304) is threadedly connected to the center of the fixing plate (3). The top of the screw (304) is rotatably connected to the support plate (302).
4. A grading machine for sunflower seed processing according to claim 1, characterized in that: The gear assembly includes a drive rod (7) that is connected through the side of the graded housing (1). The drive rod (7) extends into the interior of the support housing (6) and a first bevel gear (701) is fixed at one end. The support housing (6) is rotatably connected to a connecting shaft (601) in the vertical direction. A second bevel gear (702) is fixed at the end of the connecting shaft (601) near the first bevel gear (701). The first bevel gear (701) and the second bevel gear (702) are meshed together. The sorting plate (602) is fixedly connected to the lower end of the connecting shaft (601).
5. A grading machine for sunflower seed processing according to claim 1, characterized in that: The conduit (4) extends to one end of the outer side of the grading shell (1) and is fixed with a collection shell (401). The side wall of the collection shell (401) is provided with an opening and closing plate (402) connected by bolts.
6. A grading machine for sunflower seed processing according to claim 1, characterized in that: The side wall of the dust collection housing (5) is fixed with an annular baffle (502).