A centrifugal forage seed sorting device for removing awns and impurities

Abstract

This invention relates to the field of sorting equipment technology, specifically to a centrifugal forage seed deawning and impurity sorting device, comprising a sorting barrel and a rotatable filter cylinder disposed inside the sorting barrel. The filter cylinder includes an upper cylinder and a lower cylinder. The upper cylinder has an inverted funnel-shaped structure, with sieve holes on its side wall and a feeding channel communicating with the sorting barrel at its top. The lower cylinder is in close contact with the upper cylinder, forming an annular collection trough at their connection. Impurities move continuously toward the collection trough under centrifugal force, and after accumulating to a certain amount, they can be discharged through the separation of the upper and lower cylinders. Meanwhile, the lighter seeds move gradually along the inner wall of the upper cylinder under centrifugal force and are discharged from the sieve holes, allowing seeds and impurities of different densities to be distributed in an orderly manner. This facilitates further fine sorting of the seeds according to requirements and improves the purity of the seeds.

Description

Technical Field

[0001] This invention relates to the field of sorting equipment technology, specifically to a centrifugal forage seed sorting device for removing awns and impurities. Background Technology

[0002] Before seeds can be used for cultivation, they must be sorted. During sorting, seeds typically contain two types of impurities: one is the lighter awn, which is the needle-like awn at the tip of the lemma covering the seed; the other is heavier impurities such as sand and gravel. Chinese Patent Publication No. CN221452662U discloses a rice seed awn removal machine, comprising a shell, an inlet pipe extending through the upper part of one side wall of the shell, a suction pipe extending through the upper part of the other side wall of the shell, an outlet pipe extending through the lower part of one side wall of the shell, an inclined plate at the bottom of the inner wall of the shell, a fixed disc fixed to the top of the inner wall of the shell, and a stirring device that slides with the fixed disc in the middle of the interior of the shell. The motor drives the first rotating shaft to rotate, which in turn drives the main gear to rotate. The driven gear, which meshes with the main gear, also rotates accordingly, causing the second rotating shaft to rotate. The slider of the second rotating shaft slides in conjunction with the limiting groove of the fixed plate to make the second rotating shaft revolve around the first rotating shaft. This allows the second stirring blade to fully stir every corner of the shell, thereby improving the quality of awn removal. However, the current awn removal solution has many problems that need to be solved. Due to the shape limitations of the awns, they are very easy to accumulate on the screen during sorting. In the later stages of sorting, the accumulated awns will reduce the sorting efficiency of the seeds. At the same time, since the seeds contain heavy sand and gravel, it cannot effectively sort the heavy sand and gravel and seeds. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a centrifugal forage seed sorting and awn removal device. The invention features a lower cylinder and an upper cylinder in close contact, forming an annular collection trough at their connection. Impurities, driven by centrifugal force, continuously move towards the collection trough. Once a certain amount accumulates, the impurities are discharged through the separation of the upper and lower cylinders. Meanwhile, lighter seeds, under centrifugal force, gradually move along the inner wall of the upper cylinder and are discharged through the sieve holes. This orderly distribution of seeds and impurities of different densities facilitates further refined sorting of the seeds according to requirements, thereby improving seed purity.

[0004] To address the problems of existing technologies, this invention provides a centrifugal forage seed deawning and impurity sorting device, comprising a sorting barrel and a rotatable filter cylinder disposed inside the sorting barrel. The filter cylinder includes an upper cylinder and a lower cylinder. The upper cylinder has an inverted funnel-shaped structure, with sieve holes on its side wall and a feeding channel communicating with the sorting barrel at its top. The lower cylinder can move along the axial direction of the upper cylinder. At the initial stage of sorting, the lower cylinder abuts against the upper cylinder, and an annular collection trough is formed at the connection between the lower and upper cylinders. After excessive impurities accumulate in the collection trough, the lower cylinder separates from the upper cylinder, forming a gap between the lower and upper cylinders that allows impurities to be discharged.

[0005] Preferably, the lower cylinder has a funnel-shaped structure, the edge of the upper cylinder is provided with an annular baffle for blocking impurities discharged from the collection trough, an annular collection trough is provided between the annular baffle and the edge of the lower cylinder, and an annular extension plate is provided below the edge of the lower cylinder that slides in cooperation with the inner edge of the collection trough.

[0006] Preferably, the lower cylinder is provided with a cleaning component that can clean the inner wall of the upper cylinder. When the lower cylinder separates from the upper cylinder, the cleaning component separates from the inner wall of the upper cylinder. When the lower cylinder returns to its original position, the cleaning component contacts the inner wall of the upper cylinder.

[0007] Preferably, a fixed shaft is provided inside the sorting bin, and a guide groove is provided on the fixed shaft. The cleaning component includes a support frame that is sleeved on the fixed shaft and moves along the guide groove. Multiple cleaning brushes are provided on the support frame, and the lower cylinder is rotatably disposed at the bottom of the support frame.

[0008] Preferably, the lower cylinder has multiple drive shafts distributed around its axis on its edge, the drive shafts extending along the axial direction of the lower cylinder, and the upper cylinder has mounting holes that match the drive shafts.

[0009] Preferably, a limiting block is provided on the drive shaft and threaded therewith, an elastic element is provided between the limiting block and the upper cylinder, and a filter groove is provided on the edge of the upper cylinder.

[0010] Preferably, a rotary drive motor is provided at the bottom of the sorting barrel, a drive shaft connected to the rotary drive motor is provided inside the sorting barrel, a gear is sleeved on the drive shaft, and a gear ring is provided at the bottom of the lower cylinder to mesh with the gear.

[0011] Preferably, the bottom of the sorting barrel is provided with a lifting frame that can move along the axis of the sorting barrel and a linear drive for driving the lifting frame to move, and the lower cylinder is rotatably sleeved on the top of the lifting frame.

[0012] Preferably, the top periphery of the sorting barrel is provided with multiple nozzles that can backflush the screen holes of the upper cylinder, and all the nozzles are connected to an external air source.

[0013] Preferably, a weighing sensor capable of measuring seed material is installed on the lower cylinder.

[0014] The advantages of this invention compared to the prior art are:

[0015] 1. In the initial sorting stage, the lower and upper cylinders of this invention are in close contact, forming an annular collection trough at their connection. Driven by centrifugal force, impurities overcome friction with the inner wall of the filter cylinder and continuously move towards the collection trough. After accumulating to a certain amount, the impurities are discharged through the separation of the upper and lower cylinders. Lighter seeds experience less centrifugal force and gradually move along the inner wall of the upper cylinder during the filter cylinder's rotation. The seeds are then discharged through the sieve holes. Through the separation of the upper and lower cylinders and the establishment of the collection trough, seed material is stratified, allowing seeds and impurities of different specific gravities to be distributed in an orderly manner. This facilitates further refined sorting of seeds according to requirements, improves seed purity, and provides high-quality seed raw materials for subsequent seed cultivation.

[0016] 2. The cleaning component is designed to continuously remove accumulated impurities, burrs, or other deposits from the inner wall of the upper cylinder during each sorting process, as the lower cylinder moves up and down. This process helps maintain the cleanliness of the equipment, prevents impurities from accumulating during sorting, and avoids affecting subsequent sorting efficiency.

[0017] 3. This invention, through the arrangement of the drive shaft and mounting holes, enables power transmission between the upper and lower cylinders during the movement of the lower cylinder. A certain amount of vibration is generated during rotation. This vibration, combined with the elastic element, effectively promotes the separation of small amounts of impurities carried in the seeds. The filter tank further facilitates the smooth discharge of detached impurities, preventing residue. This process ensures further purification of the seeds, providing higher-quality seed raw materials for subsequent sorting. Attached Figure Description

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a centrifugal forage seed sorting and awn removal device. Figure 1 .

[0019] Figure 2 A schematic diagram of the three-dimensional structure of a centrifugal forage seed sorting and awn removal device. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure at the initial stage of sorting in a centrifugal forage seed sorting device for removing awns and impurities.

[0021] Figure 4This is a schematic diagram of the three-dimensional cross-sectional structure of a centrifugal forage seed sorting device at the initial stage of sorting.

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the upper and lower cylinders during the separation of a centrifugal forage seed sorting and awn removal device.

[0023] Figure 6 This is a schematic diagram of the three-dimensional cross-sectional structure of the upper and lower cylinders during the separation of a centrifugal forage seed sorting and awn removal device.

[0024] Figure 7 yes Figure 6 Enlarged view of point A in the middle.

[0025] Figure 8 This is an exploded view of the upper and lower cylinders of a centrifugal forage seed sorting and awn removal device.

[0026] Figure 9 This is a three-dimensional structural diagram of the fixed shaft and cleaning components inside the sorting barrel of a centrifugal forage seed sorting device for removing awns and impurities.

[0027] Figure 10 This is a schematic diagram of a partial three-dimensional structure of the bottom of the sorting barrel in a centrifugal forage seed sorting and awn removal device.

[0028] The numbers on the map are:

[0029] 1. Sorting barrel; 11. Fixed shaft; 111. Guide groove; 12. Drive shaft; 121. Rotary drive motor; 122. Gear; 13. Lifting frame; 131. Mounting plate; 132. Guide shaft; 133. Drive frame; 14. Linear actuator; 15. Nozzle; 2. Filter cartridge; 21. Upper cylinder; 211. Screen hole; 212. Feed channel; 213. Suction mechanism; 214. Annular baffle; 215. Mounting hole; 216. Filter tank; 22. Lower cylinder; 221. Blower mechanism; 222. Extension plate; 223. Cleaning assembly; 2231. Support frame; 2232. Cleaning brush; 224. Drive shaft; 2241. Limit block; 2242. Elastic element; 225. Weighing sensor; 226. Gear ring; 23. Collection trough; 24. Collection trough. Detailed Implementation

[0030] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1 to 6As shown: A centrifugal forage seed deawning and impurity sorting device includes a sorting barrel 1 and a rotatable filter cylinder 2 disposed inside the sorting barrel 1. The filter cylinder 2 includes an upper cylinder 21 and a lower cylinder 22. The upper cylinder 21 has an inverted funnel-shaped structure. The side wall of the upper cylinder 21 is provided with sieve holes 211. The top of the upper cylinder 21 is provided with a feeding channel 212 communicating with the sorting barrel 1. The lower cylinder 22 can move along the axial direction of the upper cylinder 21. At the initial stage of sorting, the lower cylinder 22 abuts against the upper cylinder 21. The connection between the lower cylinder 22 and the upper cylinder 21 can form an annular collection trough 23. After too many impurities accumulate in the collection trough 23, the lower cylinder 22 separates from the upper cylinder 21, and a gap is formed between the lower cylinder 22 and the upper cylinder 21 to allow impurities to be discharged.

[0032] First, the seeds to be sorted are fed into the filter cylinder 2 through the feed channel 212. The filter cylinder 2 begins to rotate, and during this process, centrifugal force is used to remove impurities and awns from the seeds. Heavier impurities and seeds will adhere to the inner wall of the filter cylinder 2 under the action of centrifugal force. It should be noted that at the beginning of the sorting process, the lower cylinder 22 and the upper cylinder 21 are in close contact, forming an annular collection trough 23 at their connection. According to the principle of centrifugal force, under centrifugal action, the greater the mass of the object, the greater the centrifugal force. In the same circular motion, heavier impurities experience a greater centrifugal force than seeds. Therefore, driven by centrifugal force, the impurities overcome the friction with the inner wall of the filter cylinder 2 and continuously move towards the collection trough 23. As the rotation continues, more and more heavier impurities will gradually accumulate around the collection trough 23, thus achieving stratification of the seed material. After the impurities accumulate to a certain amount, they can be discharged through the separation of the upper cylinder 21 and the lower cylinder 22.

[0033] Lighter seeds experience less centrifugal force and gradually move along the inner wall of the upper cylinder 21 as the filter cylinder 2 rotates. When a seed reaches the sieve hole 211, it can be discharged because the sieve hole 211 is of suitable size. It is worth noting that during seed movement, the awns on the seed surface rub and collide, thus peeling off the awns. Because the awns are relatively light and mostly sharp, they are less likely to penetrate the sieve hole 211 than the seed awns. To facilitate awn discharge, a suction mechanism 213 connected to an external drive device is typically installed at the top of the filter cylinder 2, and a blower mechanism 221 connected to an external air source is typically installed at the bottom of the filter cylinder 2. This allows the awns to be blown towards the suction mechanism 213 during the sorting process, and discharged outside the filter cylinder 2 by the suction mechanism 213. The awns are effectively blocked by the sieve holes 211, allowing the awn-removed seeds to fall smoothly into the area between the filter cylinder 2 and the sorting barrel 1, thus successfully removing the awns and performing the initial sorting of the seeds.

[0034] By separating the upper cylinder 21 and the lower cylinder 22 and setting up the collection trough 23, the seed material is layered, allowing seeds and impurities of different specific gravities to be distributed in an orderly manner. This facilitates further fine sorting of seeds according to needs, improves the efficiency and quality of the entire sorting process, and can automatically separate heavier impurities from seeds and collect them in a concentrated manner, reducing the residue of impurities in seeds, improving the purity of seeds, and providing high-quality seed raw materials for subsequent seed cultivation.

[0035] like Figures 2 to 7 As shown: the lower cylinder 22 has a funnel-shaped structure, and the edge of the upper cylinder 21 is provided with an annular baffle 214 for blocking impurities discharged from the collection trough 23. An annular collection trough 24 is provided between the annular baffle 214 and the edge of the lower cylinder 22. An annular extension plate 222 that slides with the inner edge of the collection trough 24 is provided below the edge of the lower cylinder 22.

[0036] The funnel-shaped structure of the lower cylinder 22 and the inverted funnel-shaped structure of the upper cylinder 21 work together to form an annular groove at the connection between the lower cylinder 22 and the upper cylinder 21, creating a collection area with triangular cross-sections at both ends. During the sorting process, under the action of centrifugal force or gravity, heavier impurities in the seed material can more easily gather towards the collection trough 23, thus enabling the seed material to form layers more quickly, which is convenient for subsequent screening.

[0037] When impurities need to be discharged, the lower cylinder 22 moves to separate it from the upper cylinder 21. Due to the setting of the annular baffle 214, impurities are prevented from splashing out due to centrifugal force, so that the impurities can be guided into the collection trough 23. The annular extension plate 222, which is set below the edge of the lower cylinder 22 and slides in cooperation with the inner edge of the collection trough 24, can further ensure the sealing of the collection trough 24, prevent impurities from overflowing or spilling in the collection trough 24, and will not affect the movement of the lower cylinder 22.

[0038] like Figures 2 to 6 and Figure 9 As shown: The lower cylinder 22 is provided with a cleaning component 223 that can clean the inner wall of the upper cylinder 21. When the lower cylinder 22 is separated from the upper cylinder 21, the cleaning component 223 is separated from the inner wall of the upper cylinder 21. When the lower cylinder 22 is reset, the cleaning component 223 contacts the inner wall of the upper cylinder 21.

[0039] The cleaning component 223 is designed to continuously remove impurities, burrs, or other deposits accumulated on the inner wall of the upper cylinder 21 during each sorting process, as the lower cylinder 22 moves up and down. This process helps maintain the cleanliness of the equipment, prevents impurities from accumulating during sorting, and avoids affecting subsequent sorting efficiency.

[0040] The cleaning component 223, driven by the above method, reduces the frequency of manual cleaning of the equipment, making equipment maintenance more convenient and saving operators' time and effort. It ensures that the inner wall of the filter cartridge 2 is smooth and clean, thereby preventing impurities from interfering with the seed sorting process and improving sorting accuracy and efficiency.

[0041] Regular cleaning of the inner walls can effectively prevent the accumulation of impurities or corrosive substances, thereby reducing damage to the equipment caused by scale buildup or blockage and extending the service life of the equipment.

[0042] like Figures 2 to 6 and Figure 9 As shown: A fixed shaft 11 is provided inside the sorting bin 1, and a guide groove 111 is provided on the fixed shaft 11. The cleaning component 223 includes a support frame 2231 that is sleeved on the fixed shaft 11 and moves along the guide groove 111. Multiple cleaning brushes 2232 are provided on the support frame 2231. The lower cylinder 22 is rotatably disposed at the bottom of the support frame 2231.

[0043] The fixed shaft 11 allows the support frame 2231 of the cleaning assembly 223 to move along the guide groove 111 of the fixed shaft 11. Simultaneously, the lower cylinder 22 is rotatably mounted at the bottom of the support frame 2231, ensuring that the support frame 2231 only moves up and down with the lower cylinder 22 and does not rotate with it. When the lower cylinder 22 abuts against the upper cylinder 21, multiple cleaning brushes 2232 on the support frame 2231 contact the inner wall of the upper cylinder 21. Since the upper cylinder 21 rotates during the sorting process, the cleaning brushes 2232 clean the sieve holes 211 on the upper cylinder 21 as the inner wall of the upper cylinder 21 rotates, preventing the accumulation of impurities and burrs.

[0044] As heavier impurities gradually accumulate during the sorting process, they eventually pile up to a certain extent. At this point, the lower cylinder 22 separates from the upper cylinder 21, and the support frame 2231 of the cleaning component 223 drives the cleaning brush 2232 away from the upper cylinder 21, preventing the cleaning brush 2232 from contacting the screen hole 211 and interfering with subsequent sorting operations, thus improving the stability of the equipment.

[0045] The cleaning brush 2232 contacts the inner wall of the upper cylinder 21 to remove impurities and burrs, preventing the accumulation of impurities from affecting subsequent sorting, thus maintaining high sorting accuracy and ensuring the high purity of the seed material. Regular cleaning can reduce the accumulation of impurities and deposits, reduce wear and tear on the equipment, extend the service life of the equipment, and reduce the equipment failure rate.

[0046] like Figures 2 to 8 As shown: Multiple drive shafts 224 are provided on the edge of the lower cylinder 22 and distributed around its axis. The drive shafts 224 extend along the axial direction of the lower cylinder 22. The upper cylinder 21 is provided with mounting holes 215 that match the drive shafts 224.

[0047] The transmission shaft 224 and mounting hole 215 enable power transmission between the upper cylinder 21 and the lower cylinder 22 during movement. The rotation of the lower cylinder 22 effectively transmits power to the upper cylinder 21, driving its rotation. This rotation further facilitates the sorting and cleaning processes, ensuring efficient operation of the entire sorting device and preventing the upper cylinder 21 from stopping due to the separation of the lower cylinder 22.

[0048] With the distribution of multiple drive shafts 224, power transmission is more stable and uniform, effectively avoiding wear or uneven transmission caused by excessive load on a single drive shaft 224, and improving the overall stability and reliability of the equipment.

[0049] like Figures 2 to 8 As shown: A limiting block 2241 is provided on the drive shaft 224 and is threadedly engaged with it. An elastic element 2242 is provided between the limiting block 2241 and the upper cylinder 21. A filter groove 216 is provided on the edge of the upper cylinder 21.

[0050] After passing through the sieve holes 211, the seeds will enter the area between the sorting barrel 1 and the filter cylinder 2. Since the upper cylinder 21 is an inverted funnel-shaped structure, the seeds will eventually concentrate at the edge of the upper cylinder 21.

[0051] Since seeds may carry a small amount of impurities and awns during the sorting process, the drive shaft 224 and mounting hole 215 allow the lower cylinder 22 to transmit power to the upper cylinder 21. Because the upper and lower cylinders 21 and 22 slide together via the drive shaft 224, they vibrate during rotation. This vibration, combined with the elastic element 2242, effectively promotes the separation of the small amount of impurities carried in the seeds. Due to the sieve holes 211 in the upper cylinder 21, the impurities carried by the seeds are relatively small, and the filter groove 216 allows the detached impurities to be smoothly discharged, preventing residue. This process ensures further purification of the seeds, providing higher quality seed raw materials for subsequent sorting.

[0052] The setting of the limiting block 2241 can ensure the stability of the connection between the upper cylinder 21 and the lower cylinder 22. At the same time, the removal of the limiting block 2241 allows the upper cylinder 21 to be quickly separated from the lower cylinder 22, which is convenient for equipment maintenance. Furthermore, when different seeds are needed, the upper cylinder 21 can be easily replaced, improving the adaptability of the equipment.

[0053] like Figures 2 to 6As shown: A rotary drive motor 121 is provided at the bottom of the sorting barrel 1, and a drive shaft 12 that is connected to the rotary drive motor 121 is provided inside the sorting barrel 1. A gear 122 is sleeved on the drive shaft 12, and a gear ring 226 that meshes with the gear 122 is provided at the bottom of the lower cylinder 22.

[0054] When the rotary drive motor 121 starts, its output shaft drives the drive shaft 12, which is connected to it, to rotate. The rotation of the drive shaft 12 drives the gear 122, which in turn drives the gear ring 226, which meshes with it, to rotate. This causes the lower cylinder 22 to rotate. This rotational motion drives the upper cylinder 21, thereby achieving the seed sorting and impurity removal process.

[0055] Since the lower cylinder 22 can move along the axial direction of the upper cylinder 21, the gear ring 226 is designed as a long shaft to accommodate the axial movement of the lower cylinder 22. During equipment operation, the meshing of the long shaft gear ring 226 with the gear 122 not only provides power transmission but also allows for a certain degree of sliding between the gear ring 226 and the gear 122 during rotation. This sliding fit design ensures that the friction between the gear 122 and the gear ring 226 is effectively controlled, avoiding mechanical wear caused by jamming or excessive friction between the gear ring 226 and the gear 122.

[0056] The gear 122 and the gear ring 226 work together to drive the lower cylinder 22 to rotate smoothly, while also ensuring that the lower cylinder 22 is not hindered by the transmission during movement, thus maintaining the efficiency and stability of the entire sorting process.

[0057] like Figures 2 to 6 and Figure 10 As shown: The bottom of the sorting barrel 1 is provided with a lifting frame 13 that can move along the axis of the sorting barrel 1 and a linear drive 14 for driving the lifting frame 13 to move. The lower cylinder 22 is rotatably sleeved on the top of the lifting frame 13.

[0058] The lifting frame 13 includes a mounting plate 131, a drive frame 133, and multiple guide shafts 132. The lower cylinder 22 is sleeved on the mounting plate 131. The multiple guide shafts 132 are fixedly connected to the mounting plate 131 and pass through the bottom of the sorting barrel 1 and slide with it. The guide shafts 132 extend along the axial direction of the sorting barrel 1 and are equidistantly distributed around the axis of the mounting plate 131. The drive frame 133 is fixedly connected to the bottom of the multiple guide shafts 132 and is connected to the linear actuator 14. The linear actuator 14 is preferably a cylinder or a hydraulic cylinder.

[0059] When the linear actuator 14 is started, the drive frame 133, through its transmission connection with the linear actuator 14, drives the lifting frame 13 to move along the axis of the sorting drum 1. A pneumatic or hydraulic cylinder provides precise force output, ensuring smooth and accurate movement of the lifting frame 13, thereby achieving precise adjustment of the position of the lower drum 22. The stable lifting of the lifting frame 13 optimizes the relative positions of the lower drum 22 and the upper drum 21 during the sorting process, ensuring optimal separation of seeds and impurities, avoiding mechanical impacts or unnecessary displacement caused by uneven lifting, and improving the operational stability of the equipment.

[0060] By setting the linear drive 14, the adjustment process of the lifting frame 13 is automated, reducing the complexity of manual operation, improving the automation level and ease of operation of the equipment, enhancing the working efficiency of the sorting equipment, reducing possible errors during the adjustment process, and improving production efficiency.

[0061] like Figures 3 to 6 As shown: The top periphery of the sorting barrel 1 is provided with multiple nozzles 15 that can backflush the screen holes 211 of the upper cylinder 21. All nozzles 15 are connected to an external air source.

[0062] Multiple nozzles 15 are installed around the top of the sorting barrel 1. An external air source drives the nozzles 15 to backflush and clean the sieve holes 211. The nozzles 15 are connected to the external air source, which provides a stable airflow to drive the nozzles 15 to spray high-pressure airflow. This effectively sweeps the surface of the sieve holes 211, removing accumulated impurities, seed fragments, thorns, and other residues. Through this backflush action, the surface of the sieve holes 211 is cleaned, maintaining their permeability and preventing clogging that could affect the sorting effect.

[0063] During the cleaning process of the sieve holes 211, the reverse airflow blows out impurities and debris from the sieve holes 211, which are then discharged through the adsorption mechanism 213, preventing them from re-entering the sorting area and thus ensuring the accuracy and efficiency of the screening. Simultaneously, it facilitates the collection of burrs or impurities on the sieve holes 211 by the air suction mechanism 213 inside the sorting barrel 1.

[0064] Automated backflushing cleaning reduces the frequency and time of manual cleaning of the screen apertures 211, improving the automation level and work efficiency of the equipment. It also reduces the long-term accumulation and corrosion of impurities in the screen apertures 211, extending their service life.

[0065] like Figure 7 and Figure 10 As shown: A weighing sensor 225 capable of measuring seed material is installed on the lower cylinder 22.

[0066] A weighing sensor 225 is installed on the lower cylinder 22 to measure the weight of the seed material passing through the screening process in real time. Integrated with the structure of the lower cylinder 22, the weighing sensor 225 automatically detects and records the weight of the seed material after it enters the lower cylinder 22 and passes through the screening process. This weight data can be used to monitor the amount of seeds processed in real time and provide a basis for subsequent sorting processes. The weighing sensor 225 transmits the detected weight information to the back-end control system, which can adjust the equipment's operating mode or sorting parameters based on the weighing data, thereby optimizing sorting efficiency and seed quality. This achieves precise management of the seed material, ensuring that the equipment is always in optimal working condition.

[0067] The weighing sensor 225 can accurately monitor the weight of the seed material passing through the lower cylinder 22 in real time, providing quantitative data for the entire sorting process and ensuring that each batch of material is processed precisely. This reduces manual intervention and improves the automation and intelligence level of the equipment. Precise control of the seed material sorting process can reduce waste, maximize seed purity and quality, and thus improve the final sorting efficiency.

[0068] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A centrifugal forage seed sorting and awn removal device, comprising a sorting barrel (1) and a rotatable filter cylinder (2) disposed inside the sorting barrel (1), characterized in that, The filter cartridge (2) includes an upper cylinder (21) and a lower cylinder (22); The upper cylinder (21) is an inverted funnel-shaped structure. The side wall of the upper cylinder (21) is provided with a sieve hole (211), and the top of the upper cylinder (21) is provided with a feeding channel (212) that communicates with the sorting barrel (1). The lower cylinder (22) can move along the axial direction of the upper cylinder (21); At the beginning of the sorting process, the lower cylinder (22) abuts against the upper cylinder (21), and an annular collection trough (23) is formed at the connection between the lower cylinder (22) and the upper cylinder (21). After too many impurities accumulate in the collection trough (23), the lower cylinder (22) separates from the upper cylinder (21), and a gap is formed between the lower cylinder (22) and the upper cylinder (21) to allow impurities to be discharged. The lower cylinder (22) has a funnel-shaped structure. The edge of the upper cylinder (21) is provided with an annular baffle (214) for blocking impurities discharged from the collection trough (23). An annular collection trough (24) is provided between the annular baffle (214) and the edge of the lower cylinder (22). An annular extension plate (222) that slides with the inner edge of the collection trough (24) is provided below the edge of the lower cylinder (22). Multiple drive shafts (224) are provided on the edge of the lower cylinder (22) and distributed around its axis. The drive shafts (224) extend along the axis of the lower cylinder (22). Mounting holes (215) that match the drive shafts (224) are provided on the upper cylinder (21). A rotary drive motor (121) is provided at the bottom of the sorting barrel (1). A drive shaft (12) is provided inside the sorting barrel (1) and is connected to the rotary drive motor (121). A gear (122) is fitted on the drive shaft (12). A gear ring (226) is provided at the bottom of the lower cylinder (22) and is connected to the gear (122). The gear ring (226) is designed as a long shaft. The bottom of the sorting barrel (1) is provided with a lifting frame (13) that can move along the axis of the sorting barrel (1) and a linear drive (14) for driving the lifting frame (13) to move. The lower cylinder (22) is rotatably sleeved on the top of the lifting frame (13).

2. The centrifugal forage seed sorting and awn removal device according to claim 1, characterized in that, The lower cylinder (22) is provided with a cleaning component (223) that can clean the inner wall of the upper cylinder (21). When the lower cylinder (22) is separated from the upper cylinder (21), the cleaning component (223) is separated from the inner wall of the upper cylinder (21). When the lower cylinder (22) is reset, the cleaning component (223) contacts the inner wall of the upper cylinder (21).

3. The centrifugal forage seed sorting and awn removal device according to claim 2, characterized in that, A fixed shaft (11) is provided inside the sorting bin (1), and a guide groove (111) is provided on the fixed shaft (11). The cleaning component (223) includes a support frame (2231) that is sleeved on the fixed shaft (11) and moves along the guide groove (111). Multiple cleaning brushes (2232) are provided on the support frame (2231), and the lower cylinder (22) is rotatably located at the bottom of the support frame (2231).

4. The centrifugal forage seed sorting and awn removal device according to claim 1, characterized in that, A limiting block (2241) is provided on the drive shaft (224) and is threadedly engaged with it. An elastic element (2242) is provided between the limiting block (2241) and the upper cylinder (21). A filter groove (216) is provided on the edge of the upper cylinder (21).

5. A centrifugal forage seed sorting and awn removal device according to claim 1, characterized in that, The top periphery of the sorting barrel (1) is provided with multiple nozzles (15) that can backflush the sieve holes (211) of the upper cylinder (21), and the multiple nozzles (15) are connected to an external air source.

6. The centrifugal forage seed sorting and awn removal device according to claim 1, characterized in that, A weighing sensor (225) capable of measuring seed material is installed on the lower cylinder (22).

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