Automatic seed screening and impurity removing device for agricultural production

Abstract

The utility model discloses an automatic seed screening and impurity removing device for agricultural production. The automatic seed screening and impurity removing device comprises a treatment bin, a stirring mechanism, a screening mechanism and a waste water tank. The treatment bin comprises an impurity removal bin and a screening bin; the impurity removal bin is mounted at the top of the screening bin; a stirring mechanism is installed in an impurity removal bin with a hopper arranged at the top, and an inner cylinder and an isolation plate are arranged in the impurity removal bin. The impurity removal bin is installed at the top of the screening bin, supporting legs are arranged at the bottom of the inner cylinder, the inner cylinder is installed in the impurity removal bin through the supporting legs, and a separation plate is installed between the outer wall of the inner cylinder and the inner wall of the impurity removal bin; a drain outlet I and a water inlet are formed in one side of the bottom of the inner The screening mechanism and the waste water tank are installed in the screening bin, the screening mechanism is located at the top of the waste water tank, and a sliding door is arranged on one side of the screening bin. According to the wheat seed impurity removing and screening device, accurate impurity removing and screening of wheat seeds are achieved, and meanwhile the situation that a large amount of dust and organic impurities attached to the surfaces of the wheat seeds are raised to pollute the working environment is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, and specifically relates to an automated seed screening and impurity removal device for agricultural production. Background Technology

[0002] In the field of agricultural production, the purity of wheat seeds plays a key role in the growth and yield of crops, so seed impurity removal and screening technology has attracted much attention. However, most existing technologies use air blowing to remove impurities from wheat seeds, which causes a large amount of dust and organic impurities attached to the surface of wheat seeds to be blown up. This not only pollutes the working environment, but also makes it easy for a few impurities to re-attach to the wheat seeds that have been initially cleaned, thus reducing the actual effect of impurity removal.

[0003] A search revealed an existing technology (CN222369642U) for a sieving and impurity removal device for wheat seeds. The device includes a mounting frame and a double-layer screen. A motor is mounted on the mounting frame, and the output end of the motor is connected to a coaxially arranged first drive wheel via a coupling. A connecting rod is rotatably mounted on the mounting frame, and a first driven wheel and a drive bevel gear are fixedly sleeved on the outer circumference of the connecting rod. A protective cover is fixedly connected to the top of the mounting frame with screws. This existing technology uses a motor to drive the fan blades, resulting in excessively fast and unstable airflow. This causes a large amount of dust and organic impurities adhering to the surface of the wheat seeds to be stirred up and scattered throughout the internal space of the device. This not only pollutes the working environment but also makes it easy for some impurities and dust that do not fall into the impurity box to re-adhere to the initially cleaned seeds, reducing the actual impurity removal effect.

[0004] Further search revealed a prior art announcement (CN219761964U) for a wheat seed storage device, comprising a storage box with a supporting base plate symmetrically arranged at its bottom. A storage groove is excavated within the storage box, and a grid-type storage cylinder is connected to the storage groove via a drive mechanism. A blowing mechanism is located on the upper left side of the storage box, and a storage-type suction mechanism is located at the bottom of the storage box. A collection mechanism is located below the inner cavity of the storage groove. This prior art uses a blower to blow gas into the grid-type storage cylinder, accelerating the separation of wheat from impurities. However, this causes a large amount of dust and organic impurities adhering to the surface of the wheat seeds to be lifted and scattered throughout the device's internal space. This not only pollutes the working environment but also makes it easy for some impurities and dust that do not fall into the impurity box to re-adhere to the initially cleaned seeds, reducing the actual effectiveness of impurity removal. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an automated seed screening and impurity removal device for agricultural production. This device achieves precise impurity removal and screening of wheat seeds while avoiding the large-scale stirring up of dust and organic impurities attached to the surface of wheat seeds, which would pollute the working environment.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An automated seed screening and impurity removal device for agricultural production includes a treatment chamber, a stirring mechanism, a screening mechanism, and a wastewater tank. The treatment chamber includes an impurity removal chamber and a screening chamber, with the impurity removal chamber installed on top of the screening chamber. The stirring mechanism is installed inside the impurity removal chamber, which has a hopper on top. The screening mechanism and the wastewater tank are both installed inside the screening chamber, with the screening mechanism located on top of the wastewater tank. The wastewater tank is used to collect residual moisture on the surface of wheat seeds, and a sliding door is provided on one side of the screening chamber.

[0008] The impurity removal chamber is equipped with an inner cylinder and a partition plate. The impurity removal chamber is installed on top of the screening chamber. The bottom of the inner cylinder is equipped with support legs, and the inner cylinder is installed inside the impurity removal chamber through the support legs. A partition plate is installed between the outer wall of the inner cylinder and the inner wall of the impurity removal chamber. A drain outlet I and a water inlet are provided on one side of the bottom of the inner cylinder. The drain outlet I and the water inlet are located at the bottom of the partition plate, and both the drain outlet I and the water inlet are equipped with filter screens. A valve is provided at one end of the drain outlet I. A discharge outlet is provided at the bottom of the inner cylinder. The discharge outlet is located inside the screening chamber and is equipped with a valve. A drain outlet II is provided on one side of the impurity removal chamber. The drain outlet II is located on top of the partition plate, and a valve is provided at one end of the drain outlet II.

[0009] The top of the impurity removal chamber is equipped with several sets of electric push rods. The telescopic ends of the electric push rods pass through the top of the impurity removal chamber and connect to the cover located inside the impurity removal chamber. The cover fits into the top of the inner cylinder and is used to seal the inner cylinder.

[0010] The top of the impurity removal bin is equipped with a hopper, and the bottom of the hopper is equipped with several sets of telescopic material pipes. The telescopic ends of the telescopic material pipes pass through the top of the impurity removal bin and are connected to the cover.

[0011] The stirring mechanism comprises a stirring shaft, a motor II, a connecting plate, stirring blades I, a sliding rod, stirring blades II, and a protective shell. A support plate is provided at the bottom of the inner cylinder. The stirring shaft is located inside the inner cylinder and rotatably connected to the support plate. The top end of the stirring shaft passes through a purification chamber and is fixedly connected to the output shaft of motor II at the top of the purification chamber. The stirring shaft has a bidirectional reciprocating thread. Two sets of mirror-shaped connecting plates are provided on the stirring shaft, and the two sets of connecting plates are fixedly connected by a sliding rod. Two sets of mirror-shaped stirring blades I are mirror-shaped and threadedly connected to the stirring shaft. The stirring blades I are slidably connected to the sliding rod. The protective shell installed on the top of the support plate is rotatably connected to the stirring shaft. A bevel gear is provided on the part of the stirring shaft inside the protective shell. Two sets of mirror-shaped stirring blades II are rotatably connected to the protective shell. One end of the stirring blade II's bevel gear meshes with the bevel gear of the stirring shaft.

[0012] Both stirring blade I and stirring blade II have rounded corners to prevent damage to the plump wheat seeds during stirring.

[0013] The screening mechanism includes filter plate I, filter plate II, connecting rod, sliding block, rotating rod, rotating shaft II, and motor II. Both the screening mechanism and the wastewater tank are installed inside the screening chamber. The screening mechanism is located on top of the wastewater tank, which collects residual moisture from the surface of the wheat seeds. Two sets of sliding grooves are provided on both sides of the inner wall of the screening chamber. Filter plate I and filter plate II are slidably installed in the two sets of sliding grooves on both sides, and filter plate I and filter plate II are fixedly connected. The pore size of filter plate I is larger than the volume of plump wheat seeds, used to screen for organic impurities such as stones and metals mixed in with the wheat seeds. The pore size of filter plate II is smaller than the volume of plump wheat seeds. The wheat seed volume is used to screen out small, broken seeds and residual water on the surface of the wheat seeds. Two sets of rotating rods are installed on both sides of the inner wall of the screening chamber. The rotating rods are slidably connected to sliding blocks. A connecting rod is slidably installed at one end of the sliding block, and a filter plate II is fixedly connected to the top of the connecting rod. A rotating shaft I is installed at one end of the rotating rod, passing through the screening chamber and equipped with a bevel gear. The rotating shaft II is rotatably installed on both sides of the screening chamber. The bevel gear of rotating shaft II meshes with the bevel gear of rotating shaft I. A motor II is installed at one end of rotating shaft II, and the output shaft of motor II is fixedly connected to rotating shaft II.

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] 1) First, clean water is introduced through the inlet to wash the wheat seeds in the inner cylinder. When the water in the inner cylinder is about to reach the bottom of the cap, the water inlet stops flowing clean water. After washing, the dust and dirt on the surface of the wheat seeds will dissolve in the clean water, making the water turbid. Organic impurities and unripe seeds in the wheat seeds will float to the surface of the water. The electric push rod pushes the cap upward, and the water inlet continues to flow clean water. With the impact of the water flow, the floating organic impurities and unripe seeds will enter the impurity removal chamber with the turbid water and be discharged through the drain outlet II. The wheat seeds are washed by water, which avoids the dust and organic impurities attached to the surface of the wheat seeds being stirred up in large quantities and polluting the working environment. The water flow impact discharge achieves precise separation of wheat seeds from organic impurities and unripe seeds, and prevents a few organic impurities from easily re-attaching to the wheat seeds that have been initially cleaned.

[0016] 2) Motor II drives the stirring shaft to rotate. The two sets of stirring blades I move back and forth along the thread direction as the stirring shaft rotates. While stirring the water and wheat seeds, they create turbulence in the water, thereby fully stirring the seeds and water in the inner cylinder. This accelerates the removal of dust, mud, organic impurities, and unripe seeds from the surface of the wheat seeds. The stirring shaft drives the stirring blades II to rotate, which makes the wheat seeds at the bottom of the inner cylinder mix with the water quickly, greatly improving the cleaning efficiency. Attached Figure Description

[0017] Appendix Figure 1 This is a schematic diagram of the structure of an automated seed screening and impurity removal device for agricultural production according to this utility model;

[0018] Appendix Figure 2 It is attached Figure 1 Schematic diagram of the inner cylinder structure;

[0019] Appendix Figure 3 It is attached Figure 1 Schematic diagram of the middle sealing structure;

[0020] Appendix Figure 4 It is attached Figure 1 Schematic diagram of the stirring mechanism;

[0021] Appendix Figure 5 It is attached Figure 1 Schematic diagram of the middle screening mechanism Figure 1 ;

[0022] Appendix Figure 6 It is attached Figure 1 Schematic diagram of the middle screening mechanism Figure 2 ;

[0023] Appendix Figure 7 This is a schematic diagram of the appearance of an automated seed screening and impurity removal device for agricultural production according to this utility model.

[0024] In the diagram: 1. Processing bin; 101. Hopper; 1011. Telescopic feed pipe; 102. Impurity removal bin; 1021. Inner cylinder; 1022. Discharge port; 1023. Isolation plate; 1024. Sewage outlet I; 1025. Water inlet; 1026. Sewage outlet II; 1027. Filter screen; 103. Screening bin; 1031. Sliding chute; 104. Sliding door; 2. Cover; 21. Electric push rod; 3. 31. Stirring mechanism; 32. Stirring shaft; 33. Motor II; 34. Support plate; 35. Connecting plate; 36. Stirring blade I; 37. Sliding rod; 38. Stirring blade II; 4. Protective shell; 4. Screening mechanism; 41. Filter plate I; 42. Filter plate II; 43. Connecting rod; 44. Sliding block; 45. Rotating rod; 46. Rotating shaft I; 47. Rotating shaft II; 48. Motor II; 5. Wastewater tank. Detailed Implementation

[0025] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-7 The technical solution of this utility model will be further described in detail below.

[0026] An automated seed screening and impurity removal device for agricultural production includes a processing chamber 1, a stirring mechanism 3, a screening mechanism 4, and a wastewater tank 5. The processing chamber includes an impurity removal chamber 102 and a screening chamber 103, with the impurity removal chamber 102 installed on top of the screening chamber 103. The stirring mechanism 3 is installed inside the impurity removal chamber 102, which has a hopper 101 on top. The screening mechanism 4 and the wastewater tank 5 are both installed inside the screening chamber 103. The screening mechanism 4 is located on top of the wastewater tank 5, which is used to collect residual moisture on the surface of wheat seeds. A sliding door 104 is provided on one side of the screening chamber 103.

[0027] The impurity removal chamber 102 is equipped with an inner cylinder 1021 and a partition plate 1023. The impurity removal chamber 102 is installed on top of the screening chamber 103. The bottom of the inner cylinder 1021 is provided with support legs, and the inner cylinder 1021 is installed in the impurity removal chamber 102 through the support legs. The partition plate 1023 is installed between the outer wall of the inner cylinder 1021 and the inner wall of the impurity removal chamber 102. A drain outlet I 1024 and a water inlet 1025 are provided on one side of the bottom of the inner cylinder 1021. 025 is located at the bottom of the isolation plate 1023, and both the drain outlet I 1024 and the water inlet 1025 are equipped with filter screens 1027. One end of the drain outlet I 1024 is equipped with a valve. The bottom of the inner cylinder 1021 is equipped with a discharge outlet 1022, which is located in the screening chamber 103 and is equipped with a valve. One side of the impurity removal chamber 102 is equipped with a drain outlet II 1026, which is located at the top of the isolation plate 1023. One end of the drain outlet II 1026 is equipped with a valve.

[0028] The top of the impurity removal chamber 102 is provided with several sets of electric push rods 21. The telescopic ends of the electric push rods 21 pass through the top of the impurity removal chamber 102 and are connected to the cover 2 located inside the impurity removal chamber 102. The cover 2 fits with the top of the inner cylinder 1021 and is used to seal the inner cylinder 1021.

[0029] The top of the impurity removal bin 102 is provided with a hopper 101, and the bottom of the hopper 101 is provided with several sets of telescopic material pipes 1011. The telescopic ends of the telescopic material pipes 1011 pass through the top of the impurity removal bin 102 and are connected to the cover 2.

[0030] As described above: Wheat seeds to be processed are poured into hopper 101, and then enter the inner cylinder 1021 inside the impurity removal chamber 102 through telescopic feed pipe 1011. Electric push rod 21 pushes the cap 2 to seal the top of the inner cylinder 1021. Subsequently, clean water is introduced through water inlet 1025 to wash the wheat seeds in the inner cylinder 1021. When the water in the inner cylinder 1021 is about to reach the bottom of the cap 2, the water inlet 1025 stops introducing clean water, and the stirring mechanism 3 stirs to accelerate the washing speed of the wheat seeds. After washing, the dust and dirt on the surface of the wheat seeds will dissolve in the clean water, making the water turbid, while the organic impurities and unripe seeds in the wheat seeds float to the surface of the water. The electric push rod 21 pushes the cover 2 upward, and the water inlet 1025 continues to flow in clean water. With the impact of the water flow, the floating organic impurities and unripe seeds will enter the impurity removal chamber 102 with the turbid water and be discharged through the drain outlet II 1026. When the water in the inner cylinder 1021 is clear, the addition of clean water is stopped, and the clean water in the inner cylinder 1021 is discharged through the drain outlet II 1026. Then the wheat seeds fall into the screening chamber 103 through the discharge outlet 1022. The screening mechanism 4 further screens the wheat seeds to ensure the high quality of the wheat seeds and meet the needs of agricultural production. Finally, the sliding door 104 on one side of the screening chamber 103 is opened to clean the residual impurities and collect the plump seeds, completing the screening and impurity removal process.

[0031] The stirring mechanism 3 includes a stirring shaft 31, a motor II 32, a connecting plate 34, a stirring blade I 35, a sliding rod 36, a stirring blade II 37, and a protective shell 38. The inner cylinder 1021 has a support plate 33 at its bottom. The stirring shaft 31 is located inside the inner cylinder 1021 and rotatably connected to the support plate 33. The top end of the stirring shaft 31 passes through the impurity removal chamber 102 and is fixedly connected to the output shaft of the motor II 32 at the top of the impurity removal chamber 102. The stirring shaft 31 has a bidirectional reciprocating thread. The stirring shaft 31 has two sets of mirror-arranged connecting plates. 34. Two sets of connecting plates 34 are fixedly connected by sliding rods 36; the two sets of stirring blades I 35 are mirror images of each other and are threadedly connected to the stirring shaft 31, and the stirring blades I 35 are slidably connected to the sliding rods 36; the protective shell 38 installed on the top of the support plate 33 is rotatably connected to the stirring shaft 31, and the part of the stirring shaft 31 located inside the protective shell 38 is provided with a bevel gear; the two sets of mirror images of stirring blades II 37 are rotatably connected to the protective shell 38; the bevel gear at one end of the stirring blade II 37 meshes with the bevel gear of the stirring shaft 31;

[0032] Both stirring blade I 35 and stirring blade II 37 are rounded to prevent the plump wheat seeds from being scratched during stirring.

[0033] As described above, when the wheat seeds are being cleaned, motor II 32 drives the stirring shaft 31 to rotate. The two sets of stirring blades I 35 move back and forth along the spiral direction as the stirring shaft 31 rotates. While stirring the water and wheat seeds, turbulence is formed in the water, which fully stirs the seeds and water in the inner cylinder 1021, and accelerates the removal of dust, soil and organic impurities mixed in with the wheat seeds, as well as the removal of unripe seeds. At the same time, the stirring shaft 31 drives the stirring blades II 37 to rotate, so that the wheat seeds at the bottom of the inner cylinder are quickly mixed with the water, which greatly improves the cleaning efficiency.

[0034] The screening mechanism 4 includes a filter plate I 41, a filter plate II 42, a connecting rod 43, a sliding block 44, a rotating rod 45, a rotating shaft II 47, and a motor II 48. The screening mechanism 4 and the wastewater tank 5 are both installed inside the screening chamber 103. The screening mechanism 4 is located on top of the wastewater tank 5, which is used to collect residual moisture on the surface of wheat seeds. Two sets of sliding grooves 1031 are provided on both sides of the inner wall of the screening chamber 103. The filter plates I 41 and II 42 are slidably installed in the two sets of sliding grooves 1031 on both sides, and the filter plates I 41 and II 42 are fixedly connected. The pore size of the filter plate I 41 is larger than the volume of a plump wheat seed, used to screen for organic impurities such as stones and metal mixed in with the wheat seed. The pore size of the filter plate II 42 is smaller than the volume of a plump wheat seed. The system is designed to filter out small, broken seeds and residual water from the surface of wheat seeds. Two sets of rotating rods 45 are installed on both sides of the inner wall of the screening chamber 103. The rotating rods 45 are slidably connected to sliding blocks 44. A connecting rod 43 is slidably installed at one end of the sliding block 44, and a filter plate II 42 is fixedly connected to the top of the connecting rod 43. One end of the rotating rod 45 has a rotating shaft I 46, which passes through the screening chamber 103 and is equipped with a bevel gear. Rotating shaft II 47 is rotatably installed on both sides of the screening chamber 103. The bevel gears of rotating shaft II 47 mesh with the bevel gears of rotating shaft I 46. A motor II 48 is installed at one end of rotating shaft II 47, and the output shaft of motor II 48 is fixedly connected to rotating shaft II 47.

[0035] As described above, when the washed wheat seeds fall from the impurity removal bin 102 onto the top of the filter plate I 41, the motor II 48 drives the rotating shaft II 47 to rotate, causing the rotating shaft I 46 to rotate. The rotating rod 45 begins to make circular motion, and drives the sliding block 44 to move up and down while sliding back and forth along the connecting rod 43, so that the filter plate I 41 and the filter plate II 42 slide up and down in the two sets of sliding grooves 1031 respectively. At this time, the seeds first pass through the filter plate I 41, and large organic impurities such as stones and metal are intercepted. Then they fall onto the filter plate II 42. Under continuous vibration, smaller broken seeds fall through the small holes into the wastewater tank 5, while plump wheat seeds remain on the filter plate II 42, completing fine screening. At the same time, the wastewater tank 5 collects residual water.

[0036] An automated seed screening and impurity removal device for agricultural production operates as follows:

[0037] As described above: Wheat seeds to be processed are poured into hopper 101, and then enter the inner cylinder 1021 inside the impurity removal chamber 102 through telescopic feed pipe 1011. Electric push rod 21 pushes the cap 2 to seal the top of the inner cylinder 1021. Subsequently, clean water is introduced through water inlet 1025 to wash the wheat seeds in the inner cylinder 1021. When the water in the inner cylinder 1021 is about to reach the bottom of the cap 2, the water inlet 1025 stops introducing clean water, and the stirring mechanism 3 stirs to accelerate the washing speed of the wheat seeds. After washing, the dust and dirt on the surface of the wheat seeds will dissolve in the clean water, making the water turbid, while the organic impurities and unripe seeds in the wheat seeds float to the surface of the water. The electric push rod 21 pushes the cover 2 upward, and the water inlet 1025 continues to flow in clean water. With the impact of the water flow, the floating organic impurities and unripe seeds will enter the impurity removal chamber 102 with the turbid water and be discharged through the drain outlet II 1026. When the water in the inner cylinder 1021 is clear, the addition of clean water is stopped, and the clean water in the inner cylinder 1021 is discharged through the drain outlet II 1026. Then the wheat seeds fall into the screening chamber 103 through the discharge outlet 1022. The screening mechanism 4 further screens the wheat seeds to ensure the high quality of the wheat seeds and meet the needs of agricultural production. Finally, the sliding door 104 on one side of the screening chamber 103 is opened to clean the residual impurities and collect the plump seeds, completing the screening and impurity removal process.

[0038] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In summary, the electronic or electrical components, including but not limited to motors and electric actuators, are existing components that were custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art and are not within the scope of protection of this utility model.

[0040] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. An automated seed screening and impurity removal device for agricultural production, comprising a processing chamber, a stirring mechanism, a screening mechanism, and a wastewater tank; the processing chamber includes an impurity removal chamber and a screening chamber, the impurity removal chamber being installed on top of the screening chamber; the stirring mechanism is installed inside the impurity removal chamber, which has a hopper on top, and the screening mechanism and wastewater tank are both installed inside the screening chamber, with the screening mechanism located on top of the wastewater tank, and a sliding door is provided on one side of the screening chamber; Its features The impurity removal chamber is equipped with an inner cylinder and a partition plate. The impurity removal chamber is installed on top of the screening chamber. Support legs are located at the bottom of the inner cylinder, which is then installed inside the impurity removal chamber via these legs. A partition plate is installed between the outer wall of the inner cylinder and the inner wall of the impurity removal chamber. A drain outlet (I) and a water inlet are located on one side of the bottom of the inner cylinder. Both drain outlet I and the water inlet are located at the bottom of the partition plate, and both are equipped with filter screens. A valve is located at one end of drain outlet I. A discharge outlet is located at the bottom of the inner cylinder and is located inside the screening chamber. A valve is also located on one side of the impurity removal chamber. Drain outlet II is located on the top of the partition plate, and a valve is located at one end of discharge outlet II. The screening mechanism includes filter plate I, filter plate II, connecting rod, sliding block, rotating rod, rotating shaft II, and motor II. Both the screening mechanism and the wastewater tank are installed inside the screening chamber. The screening mechanism is located on top of the wastewater tank, which collects residual moisture from the surface of wheat seeds. Two sets of sliding grooves are provided on both sides of the inner wall of the screening chamber. Filter plate I and filter plate II are slidably installed in the two sets of sliding grooves on both sides, and filter plate I is fixedly connected to filter plate II. The aperture of filter plate I is larger than the volume of plump wheat seeds, and the aperture of filter plate II is smaller than the volume of plump wheat seeds. Two sets of rotating rods are installed on both sides of the inner wall of the screening chamber. The rotating rods are slidably connected to the sliding blocks. A connecting rod is slidably installed at one end of the sliding block, and the top of the connecting rod is fixedly connected to filter plate II. A rotating shaft I is provided at one end of the rotating rod. Rotating shaft I passes through the screening chamber and is equipped with a bevel gear. Rotating shaft II is rotatably installed on both sides of the screening chamber. The bevel gear of rotating shaft II meshes with the bevel gear of rotating shaft I. Motor II is installed at one end of rotating shaft II, and the output shaft of motor II is fixedly connected to rotating shaft II.

2. The automated seed screening and impurity removal device for agricultural production according to claim 1, characterized in that... The top of the impurity removal chamber is equipped with several sets of electric push rods. The telescopic ends of the electric push rods pass through the top of the impurity removal chamber and connect to the cover located inside the impurity removal chamber. The cover fits into the top of the inner cylinder.

3. The automated seed screening and impurity removal device for agricultural production according to claim 1, characterized in that... The top of the impurity removal bin is equipped with a hopper, and the bottom of the hopper is equipped with several sets of telescopic material pipes. The telescopic ends of the telescopic material pipes pass through the top of the impurity removal bin and are connected to the cover.

4. The automated seed screening and impurity removal device for agricultural production according to claim 1, characterized in that... The stirring mechanism comprises a stirring shaft, a motor II, a connecting plate, stirring blades I, a sliding rod, stirring blades II, and a protective shell. A support plate is provided at the bottom of the inner cylinder. The stirring shaft is located inside the inner cylinder and rotatably connected to the support plate. The top end of the stirring shaft passes through a purification chamber and is fixedly connected to the output shaft of motor II at the top of the purification chamber. The stirring shaft has bidirectional reciprocating threads. Two sets of mirror-shaped connecting plates are provided on the stirring shaft, and the two sets of connecting plates are fixedly connected by a sliding rod. Two sets of mirror-shaped stirring blades I are threadedly connected to the stirring shaft, and stirring blades I are slidably connected to the sliding rod. The protective shell installed on the top of the support plate is rotatably connected to the stirring shaft, and a bevel gear is provided on the portion of the stirring shaft inside the protective shell. Two sets of mirror-shaped stirring blades II are rotatably connected to the protective shell. One end of the bevel gear of stirring blade II meshes with the bevel gear of the stirring shaft.

5. An automated seed screening and impurity removal device for agricultural production according to claim 4, characterized in that... Both stirring blade I and stirring blade II have rounded corners.

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