Seed impurity removing equipment and method for agricultural planting

Abstract

The invention relates to the technical field of screening equipment, and particularly discloses seed impurity removing equipment and method for agricultural planting, the seed impurity removing equipment comprises a machine body, and further comprises an isolation mechanism arranged at the top of the machine body and used for isolating impurities in seeds; the lifting mechanisms are arranged on two sides of the machine body and used for driving the isolation mechanism to move up and down; the filter plate is arranged at the bottom of the machine body and used for filtering seeds; to-be-screened seeds are conveyed into the machine body from the conveying pipe, then clear water is poured into the machine body, the seeds are soaked, shriveled seeds and impurities in the soaked seeds can float on the water surface, qualified seeds can be located below the water surface of the machine body due to the gravity of the qualified seeds, then the isolation mechanism is driven to descend, and the seeds are separated from the machine body. When the seeds fall down, the isolation mechanism is controlled to work, qualified seeds are isolated from impurities, the isolation mechanism is driven to rise again after isolation, the impurities on the water surface are lifted up in the rising process, and then the impurities are collected.

Description

Technical Field

[0001] The present invention relates to the technical field of screening equipment, and in particular to a device and method for removing impurities from seeds for agricultural planting. Background Art

[0002] Agriculture is an industry that produces food and industrial raw materials by cultivating animals and plants. Agriculture belongs to the primary industry. The science that studies agriculture is agronomy. Agricultural seeds need to be screened before sowing to remove debris and empty grains mixed in the seeds to increase the success rate of sowing.

[0003] Most of the current seed screening and rejection devices use air separation for screening. The principle is that after the seeds are discharged through the feed hopper, the transverse airflow is used to classify the materials, separating the seeds from debris and empty grains, thereby achieving the purpose of sorting.

[0004] In the prior art, due to the different sizes of seeds, when performing air selection and screening, it is necessary to adjust and control the falling speed of the seeds, and at the same time, it is also necessary to control the speed of the airflow. This two-way control needs to be adjusted according to the specific size and quality of the seeds. If the adjustment is not appropriate, qualified seeds will be blown to the waste together with debris, thereby affecting the screening quality of the seeds. Summary of the invention

[0005] The purpose of the present invention is to provide a seed impurity removal device and method for agricultural planting to solve the following technical problems: (1) How to better screen and remove debris from seeds.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A seed impurity removal device for agricultural planting, comprising a body and also comprising: An isolation mechanism is arranged on the top of the machine body and is used to isolate impurities in the seeds; The lifting mechanism is arranged on both sides of the machine body and is used to drive the isolation mechanism to move up and down; A filter plate is arranged at the bottom of the machine body and is used for filtering seeds; A cleaning mechanism is arranged inside the machine body and above the filter plate, and is used for cleaning the filter plate; A driving mechanism, arranged outside the machine body, for driving the cleaning mechanism to work; A vibration mechanism, arranged below the filter plate, for driving the filter plate to vibrate; Discharge ports are provided on both sides of the machine body; the discharge ports are arranged in parallel with the filter plate; a discharge bin is fixedly connected to the bottom of the machine body; two groups of discharge bins are arranged; and a conveying pipe is fixedly connected to the side wall of the machine body.

[0007] Furthermore, a middle plate is fixedly connected to the middle part of the body; a telescopic plate is slidably arranged in the middle of the middle plate; the isolation mechanism includes an isolation bin; slots are provided on both sides of the isolation bin; the slots are through-set; a sieve hole is provided at the bottom of the isolation bin; a telescopic sieve plate is slidably arranged in the slot; an L-pillar is fixedly connected to the telescopic sieve plate; one end of the L-pillar away from the telescopic sieve plate is fixedly connected to a tensioning spring; one end of the tensioning spring away from the L-pillar is fixedly connected to the side wall of the body; a clamping bin is fixedly connected in the slot; a clamping groove is provided on the side wall of the clamping bin; a telescopic spring is fixedly connected in the L-pillar; one end of the telescopic spring away from the L-pillar is fixedly connected to a clamping block; the clamping block is slidably arranged in the L-pillar; the clamping block is clamped with the clamping groove; the side wall of the body is fixedly connected with a ejector pin; a top groove is provided at the bottom of the clamping bin; the top groove is connected to the clamping groove; the top groove is arranged parallel to the ejector pin; and a paddle is fixedly connected to the telescopic sieve plate.

[0008] Furthermore, the cleaning mechanism includes a cleaning chamber; a cleaning screw is rotatably connected in the cleaning chamber; a slider is threadedly connected to the cleaning screw; a cleaning brush is fixedly connected to the slider; and the bottom of the cleaning brush abuts against the surface of the filter plate.

[0009] Furthermore, the side wall of the machine body is fixedly connected with a baffle; the baffle is provided with two groups and is located below the middle plate; the side wall of the machine body is rotatably connected with an inertia shaft; the inertia shaft is fixedly connected with an inertia plate; the inertia plate is provided with multiple groups; a guide plate is provided above the inertia shaft; both ends of the guide plate are fixedly connected to the machine body; the driving mechanism includes a driving gear and a transmission gear; the driving gear is rotatably provided on the side wall of the machine body; the driving gear input end is fixedly connected to the inertia shaft output end; the transmission gear is rotatably provided on the side wall of the cleaning bin; the transmission gear output end is fixedly connected to the cleaning screw input end; a driving belt is sleeved on the driving gear and the transmission gear.

[0010] Furthermore, the lifting mechanism includes a lifting warehouse; a lifting screw is rotatably connected inside the lifting warehouse; a lifting block is threadedly connected to the lifting screw; and one end of the lifting block away from the lifting screw is fixedly connected to the isolation warehouse.

[0011] Furthermore, the vibration mechanism includes a vibration bin; the vibration bin is fixedly connected to the side wall of the machine body; a vibration spring steel is fixedly connected inside the vibration bin; an end of the vibration spring away from the vibration bin is fixedly connected to a vibration block; the vibration block is slidably arranged in the vibration bin; and an end of the vibration block away from the vibration bin is fixedly connected to the filter plate.

[0012] Furthermore, a lifting motor is fixedly connected to the top of the lifting warehouse; and the lifting screw rod is driven to rotate by the lifting motor.

[0013] A method for removing impurities from seeds for agricultural planting, comprising the following steps: S1, first, the seeds are transported into the machine body through the transport pipe. After the seeds reach the machine body, they stay on the middle plate. Then, clean water is poured from the top of the machine body to soak the seeds. S2, after soaking, impurities and weeds in the seeds will float on the water surface, and then the isolation chamber will be driven down by the lifting block. After it descends to a certain distance, the telescopic screen plates in the isolation chamber will merge, and then the isolation chamber will be driven up. When it rises, the telescopic screen plates will lift up the debris in the water, and then the debris on the telescopic screen plates can be cleaned; S3, after cleaning, the telescopic plate on the middle plate is opened, and then the seeds fall to the filter plate with the water flow, and then pass through the filter plate for secondary filtration. At the same time, the filter plate can be prevented from being blocked according to the set vibration mechanism.

[0014] Beneficial effects of the present invention: (1) The present invention transports the seeds to be screened from a transport pipe into the interior of the machine body, and then pours clean water into the machine body to soak the seeds. After soaking, the empty seeds and debris in the seeds will float on the water surface, while the qualified seeds will be under the water surface of the machine body due to their own gravity. Then, the isolation mechanism is driven to descend, and the isolation mechanism is controlled to work during the descent process to isolate the qualified seeds from the debris. After isolation, the isolation mechanism is driven to rise again, and the debris on the water surface is lifted up during the rising process, and then collected.

[0015] (2) In the present invention, when the seeds after the debris is removed reach the filter plate, the seeds of different sizes are filtered through the filter plate. The smaller seeds are filtered through the filter plate, while the larger seeds are retained on the filter plate. The cleaning screw in the cleaning chamber is then driven to rotate. During the rotation, the cleaning brush is driven to clean the seeds on the filter plate to the discharge ports on both sides for discharge, thereby preventing the seeds from accumulating on the filter plate and clogging the filter plate.

[0016] (3) When the telescopic plate of the present invention is opened, the seeds will flow to the baffle along with the water source, and then flow to the inertia plate through the baffle and the guide plate, thereby driving the inertia plate and the inertia shaft to rotate, and when rotating, it will drive the external driving gear to rotate. When the driving gear rotates, it will drive the transmission gear to rotate through the driving belt, thereby driving the cleaning screw to rotate, and realize cleaning by the cleaning brush.

[0017] (4) In the present invention, when water flow and seeds fall onto the filter plate, they will impact the filter plate. During the impact, the filter plate will drive the vibration block and the vibration spring to shake, thereby driving the filter plate to shake. The shaking can make the seeds stuck in the filter plate pop out, avoiding blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the machine body in the present invention; Figure 2 It is a schematic diagram of the overall structure of the driving mechanism in the present invention; Figure 3 It is a cross-sectional view of the overall structure of the machine body in the present invention; Figure 4 It is a schematic diagram of the overall structure of the isolation chamber in the present invention; Figure 5 It is a schematic diagram of the overall structure of the telescopic screen plate in the present invention; Figure 6 is a cross-sectional view of the overall structure of the L-pillar in the present invention; Figure 7 It is a schematic diagram of the overall structure of the card connection bin in the present invention.

[0020] Description of the drawings: 1. Machine body; 11. Ejector pin; 12. Middle plate; 121. Telescopic plate; 13. Baffle; 14. Inertia shaft; 15. Inertia plate; 16. Guide plate; 17. Filter plate; 2. Lifting mechanism; 21. Lifting bin; 22. Lifting screw rod; 23. Lifting block; 24. Lifting motor; 3. Isolation mechanism; 31. Isolation bin; 311. Notch; 312. Snap-on bin; 3121. Snap-on groove; 3122. Top groove; 32. Telescopic sieve plate; 3 21. L-pillar; 322. telescopic spring; 323. snap-on block; 324. tension spring; 33. sieve hole; 34. paddle; 4. cleaning mechanism; 41. cleaning bin; 42. cleaning screw rod; 43. slider; 44. cleaning brush; 5. driving mechanism; 51. driving gear; 52. driving belt; 53. transmission gear; 6. waste port; 7. discharge bin; 8. vibration mechanism; 81. vibration bin; 82. vibration spring; 83. vibration block; 9. conveying pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 7 As shown, the present application provides a seed impurity removal device for agricultural planting, including a body 1, and also including: An isolation mechanism 3 is arranged on the top of the machine body 1 and is used to isolate impurities in the seeds; The lifting mechanism 2 is arranged on both sides of the machine body 1 and is used to drive the isolation mechanism 3 to move up and down; A filter plate 17 is provided at the bottom of the body 1 and is used for filtering seeds; A cleaning mechanism 4 is arranged inside the body 1 and above the filter plate 17, and is used to clean the filter plate 17; A driving mechanism 5 is arranged outside the machine body 1 and is used to drive the cleaning mechanism 4 to work; A vibration mechanism 8 is arranged below the filter plate 17 and is used to drive the filter plate 17 to vibrate; The body 1 is provided with discharge ports 6 on both sides; the discharge ports 6 are arranged parallel to the filter plate 17; the bottom of the body 1 is fixedly connected with a discharge bin 7; the discharge bin 7 is provided with two groups; the side wall of the body 1 is fixedly connected with a conveying pipe 9; During operation, in the prior art, due to the different sizes of seeds, it is necessary to adjust and control the falling speed of the seeds during air selection and screening, and it is also necessary to control the speed of the airflow. This two-way control needs to be adjusted according to the specific size and quality of the seeds. If the adjustment is not appropriate, qualified seeds and debris will be blown to the waste together, thereby affecting the screening quality of the seeds. In order to prevent such incidents from happening, first, the seeds to be screened are transported from the conveying pipe 9 to the inside of the machine body 1, and then clean water is poured into the machine body 1 to soak the seeds. After soaking, the empty grains and debris in the seeds will float on the water surface, while the qualified seeds will be under the water surface of the machine body 1 due to their own gravity, and then the machine body 1 is driven. The isolation mechanism 3 descends, and during the descending process, the isolation mechanism 3 is controlled to work to isolate qualified seeds from debris. After isolation, the isolation mechanism 3 is driven to rise again, and during the rising process, the debris on the water surface is lifted up and then collected. After the debris on the water surface is collected, the qualified seeds and clean water in the body 1 are made to flow to the filter plate 17 below, and seeds of different sizes are filtered out by the filter plate 17. In addition, the setting of the vibration mechanism 8 can avoid clogging of the filter plate 17 during filtration. Finally, the seeds that pass through the filter plate 17 are discharged through the discharge bin 7, and the seeds that do not pass through the filter plate 17 will be cleaned by the cleaning mechanism 4 to the discharge ports 6 on both sides for discharge, and the seeds are dried after discharge.

[0023] like Figure 3-Figure 7As shown, a middle plate 12 is fixedly connected to the middle of the body 1; a telescopic plate 121 is slidably arranged in the middle of the middle plate 12; the isolation mechanism 3 includes an isolation chamber 31; slots 311 are provided on both sides of the isolation chamber 31; the slots 311 are through-set; a sieve hole 33 is provided at the bottom of the isolation chamber 31; a telescopic sieve plate 32 is slidably arranged in the slot 311; an L-pillar 321 is fixedly connected in the telescopic sieve plate 32; a tensioning spring 324 is fixedly connected to the end of the L-pillar 321 away from the telescopic sieve plate 32; the end of the tensioning spring 324 away from the L-pillar 321 is fixedly connected to the side wall of the body 1; the slot 311 is fixedly connected to the A clamping bin 312 is connected; a clamping groove 3121 is provided on the side wall of the clamping bin 312; a telescopic spring 322 is fixedly connected in the L-pillar 321; a clamping block 323 is fixedly connected to the end of the telescopic spring 322 away from the L-pillar 321; the clamping block 323 is slidably arranged in the L-pillar 321; the clamping block 323 is clamped with the clamping groove 3121; a ejector pin 11 is fixedly connected to the side wall of the body 1; a top groove 3122 is provided at the bottom of the clamping bin 312; the top groove 3122 is connected with the clamping groove 3121; the top groove 3122 is arranged parallel to the ejector pin 11; a paddle 34 is fixedly connected to the telescopic screen plate 32; During operation, the seeds are poured into the conveying pipe 9 and fall onto the middle plate 12 below. The telescopic plate 121 on the middle plate 12 is in the unopened state. Then, clean water is poured into the machine body 1. After the water is poured in, the deflated grains and debris in the seeds will float on the water surface. At this time, the isolation chamber 31 is driven to descend below the water level. During the descent of the isolation chamber 31, the debris on the water surface will pass through the sieve hole 33 to the top of the isolation chamber 31, thereby being isolated from the seeds. During the continuous descent of the isolation chamber 31, the ejector pin 11 on the side wall of the machine body 1 will be inserted into the top groove. When the locking cam 321 is in the state of being locked, the tension spring 324 on the side of the L-pillar 321 loses its tensioning force, thereby causing the telescopic sieve plate 32 in the notch 311 to rebound. The telescopic sieve plate 32 is provided with two groups on the left and right, and the two groups of sieve plates are connected by the top of the sieve plate 321. After the needle 11 is released from the restriction, it rebounds at the same time, thereby realizing the merging of the telescopic sieve plate 32. After the merging, the isolation chamber 31 is driven to rise. When it rises again, the debris on the water surface will be lifted up by the telescopic sieve plate 32, and the aperture of the telescopic sieve plate 32 is small, which is not enough for the debris to penetrate, thereby isolating the debris on the water surface, and finally collecting the debris. When the collection is completed, the telescopic plate 121 on the control middle plate 12 is opened, and then the seeds flow to the filter plate 17 below together with the clean water, and are filtered twice through the filter plate 17. Finally, After the seed removal and filtering is completed, the staff can move the paddle 34 on the telescopic sieve plate 32 to drive the telescopic sieve plate 32 to move to the slots 311 on both sides through the paddle 34. During the movement, the tensioning spring 324 will be squeezed, and the clamping block 323 at the end of the L-pillar 321 will be clamped with the clamping groove 3121 in the clamping bin 312 again to achieve the limited fixation of the telescopic sieve plate 32. Through isolated filtration, the debris in the seeds can be screened out at one time, thereby improving the efficiency of seed and debris removal.

[0024] like Figure 3 As shown, the cleaning mechanism 4 includes a cleaning chamber 41; a cleaning screw 42 is rotatably connected in the cleaning chamber 41; a slider 43 is threadedly connected to the cleaning screw 42; a cleaning brush 44 is fixedly connected to the slider 43; the bottom of the cleaning brush 44 abuts against the surface of the filter plate 17; During operation, after the seeds have been removed of debris and reach the filter plate 17, the seeds of different sizes are filtered through the filter plate 17. The smaller seeds are filtered through the filter plate 17, while the larger seeds will be retained on the filter plate 17. Then, the cleaning screw 42 in the cleaning chamber 41 is driven to rotate. During the rotation, the cleaning brush 44 is driven to clean the seeds on the filter plate 17 to the discharge ports 6 on both sides for discharge, so as to avoid the seeds accumulating on the filter plate 17 and clogging the filter plate 17.

[0025] like Figure 3 As shown, the side wall of the body 1 is fixedly connected with a baffle 13; the baffle 13 is provided with two groups and is located below the middle plate 12; the side wall of the body 1 is rotatably connected with an inertia shaft 14; the inertia plate 15 is fixedly connected to the inertia shaft 14; the inertia plate 15 is provided with multiple groups; a guide plate 16 is provided above the inertia shaft 14; both ends of the guide plate 16 are fixedly connected to the body 1; the driving mechanism 5 includes a driving gear 51 and a transmission gear 53; the driving gear 51 is rotatably set on the side wall of the body 1; the input end of the driving gear 51 is fixedly connected to the output end of the inertia shaft 14; the transmission gear 53 is rotatably set on the side wall of the cleaning bin 41; the output end of the transmission gear 53 is fixedly connected to the input end of the cleaning screw 42; a driving belt 52 is sleeved on the driving gear 51 and the transmission gear 53; During operation, when the telescopic plate 121 is opened, the seeds will flow to the baffle 13 along with the water source, and then flow to the inertia plate 15 through the baffle 13 and the guide plate 16, thereby driving the inertia plate 15 and the inertia shaft 14 to rotate, and when rotating, the external driving gear 51 will be driven to rotate. When the driving gear 51 rotates, the driving belt 52 will be used to drive the transmission gear 53 to rotate, thereby driving the cleaning screw 42 to rotate, and the cleaning brush 44 will be cleaned.

[0026] like Figure 3 As shown, the lifting mechanism 2 includes a lifting chamber 21; a lifting screw rod 22 is rotatably connected in the lifting chamber 21; a lifting block 23 is threadedly connected to the lifting screw rod 22; and one end of the lifting block 23 away from the lifting screw rod 22 is fixedly connected to the isolation chamber 31; During operation, the lifting bin 21 drives the isolation bin 31 to move up and down to remove the debris.

[0027] like Figure 3 As shown, the vibration mechanism 8 includes a vibration bin 81; the vibration bin 81 is fixedly connected to the side wall of the body 1; a vibration spring 82 is fixedly connected in the vibration bin 81; a vibration block 83 is fixedly connected to one end of the vibration spring 82 away from the vibration bin 81; the vibration block 83 is slidably arranged in the vibration bin 81; and one end of the vibration block 83 away from the vibration bin 81 is fixedly connected to the filter plate 17; During operation, when water flow and seeds fall onto the filter plate 17, they will hit the filter plate 17. During the collision, the filter plate 17 will drive the vibration block 83 and the vibration spring 82 to shake, thereby driving the filter plate 17 to shake. The shaking can make the seeds stuck in the filter plate 17 pop out to avoid blockage.

[0028] like Figure 2 As shown, a lifting motor 24 is fixedly connected to the top of the lifting bin 21; the lifting screw rod 22 is driven to rotate by the lifting motor 24; During operation, the lifting motor 24 can drive the lifting screw rod 22 to rotate, thereby driving the isolation chamber 31 to move up and down.

[0029] See also Figure 1-Figure 7 As shown, the present application provides a method for removing impurities from seeds for agricultural planting, comprising the following steps: S1, first, the seeds are transported to the inside of the machine body 1 through the transport pipe 9. After the seeds reach the inside of the machine body 1, they stay on the middle plate 12. Then, clean water is poured from the top of the machine body 1 to soak the seeds; S2, after soaking, impurities and weeds in the seeds will float on the water surface, and then the lifting block 23 is used to drive the isolation chamber 31 to descend. After descending to a certain distance, the telescopic sieve plate 32 in the isolation chamber 31 merges, and then the isolation chamber 31 is driven to rise. When rising, the telescopic sieve plate 32 lifts up the debris in the water, and then the debris on the telescopic sieve plate 32 can be cleaned; S3, after cleaning, the telescopic plate 121 on the middle plate 12 is opened, and then the seeds fall onto the filter plate 17 along with the water flow, and then are filtered twice by the filter plate 17. At the same time, the filter plate 17 can be prevented from being blocked according to the vibration mechanism 8 provided; During operation, first, the seeds are transported to the inside of the machine body 1 through the conveying pipe 9. After the seeds reach the inside of the machine body 1, they will stay on the middle plate 12. Then, clean water is poured from the top of the machine body 1 to soak the seeds. After soaking, the impurities and weeds in the seeds will float on the water surface. Then, the lifting block 23 is used to drive the isolation chamber 31 to descend. After descending to a certain distance, the telescopic sieve plates 32 in the isolation chamber 31 are merged, and then the isolation chamber 31 is driven to rise. When rising, the telescopic sieve plate 32 lifts up the debris in the water, and then the debris on the telescopic sieve plate 32 can be cleaned. After cleaning, the telescopic plate 121 on the middle plate 12 is opened, and then the seeds fall onto the filter plate 17 with the water flow, and then the filter plate 17 is filtered for the second time. At the same time, the filter plate 17 can be prevented from being blocked according to the set vibration mechanism 8.

[0030] Working principle of the present invention: In the prior art, due to the different sizes of seeds, when performing air selection and screening, it is necessary to adjust and control the falling speed of the seeds, and at the same time, it is also necessary to control the speed of the airflow, and this two-way control needs to be adjusted according to the specific size and quality of the seeds. If the adjustment is not appropriate, qualified seeds and debris will be blown to the waste together, thereby affecting the screening quality of the seeds. In order to prevent such incidents from happening, first, the seeds to be screened are transported from the conveying pipe 9 to the inside of the machine body 1, and then clean water is poured into the machine body 1 to soak the seeds. After soaking, the empty grains and debris in the seeds will float on the water surface, while the qualified seeds will be under the water surface of the machine body 1 due to their own gravity, and then The isolation mechanism 3 is driven to descend, and the isolation mechanism 3 is controlled to work during the descent process to isolate qualified seeds from debris. After isolation, the isolation mechanism 3 is driven to rise again, and the debris on the water surface is lifted up during the rising process, and then collected. After the debris on the water surface is collected, the qualified seeds and clean water in the body 1 are allowed to flow to the filter plate 17 below, and seeds of different sizes are filtered out by the filter plate 17. The setting of the vibration mechanism 8 can avoid clogging of the filter plate 17 during filtering. Finally, the seeds that pass through the filter plate 17 are discharged through the discharge bin 7, and the seeds that do not pass through the filter plate 17 will be cleaned by the cleaning mechanism 4 to the discharge ports 6 on both sides for discharge, and the seeds are dried after discharge.

[0031] Among them, after the seeds are poured into the conveying pipe 9, they will fall onto the lower middle plate 12, and the telescopic plate 121 on the middle plate 12 is in the unopened state. Then, clean water is poured into the body 1. After the water is poured in, the deflated grains and debris in the seeds will float on the water surface. At this time, the isolation chamber 31 is driven to descend below the water level. During the descent of the isolation chamber 31, the debris on the water surface will pass through the sieve hole 33 to the top of the isolation chamber 31, thereby being isolated from the seeds. During the continuous descent of the isolation chamber 31, the ejector pin 11 on the side wall of the body 1 will be inserted into the top groove 3 When the locking cam 321 is in the unlocking state, the locking cam 323 is pressed against the locking cam 321, and the locking cam 323 is pressed against the locking cam 321. When the locking cam 321 is in the unlocking state, the tensioning spring 324 on the side of the L-pillar 321 loses its tensioning force, so that the telescopic screen plate 32 in the notch 311 rebounds. The telescopic screen plate 32 is provided with two groups on the left and right. After the needle 11 is released from the restriction, it rebounds at the same time, thereby realizing the merging of the telescopic sieve plate 32. After the merging, the isolation chamber 31 is driven to rise. When it rises again, the debris on the water surface will be lifted up by the telescopic sieve plate 32, and the aperture of the telescopic sieve plate 32 is small, which is not enough for the debris to penetrate, thereby isolating the debris on the water surface, and finally collecting the debris. When the collection is completed, the telescopic plate 121 on the control middle plate 12 is opened, and then the seeds flow to the filter plate 17 below together with the clean water, and are filtered twice through the filter plate 17. Finally, After the seed removal and filtering is completed, the staff can move the paddle 34 on the telescopic sieve plate 32 to drive the telescopic sieve plate 32 to move to the slots 311 on both sides through the paddle 34. During the movement, the tensioning spring 324 will be squeezed, and the clamping block 323 at the end of the L-pillar 321 will be clamped with the clamping groove 3121 in the clamping bin 312 again to achieve the limited fixation of the telescopic sieve plate 32. Through isolated filtration, the debris in the seeds can be screened out at one time, thereby improving the efficiency of seed and debris removal.

[0032] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A seed impurity removal device for agricultural planting, comprising a body (1), characterized in that: Also includes: An isolation mechanism (3) is arranged on the top of the machine body (1) and is used to isolate impurities in the seeds; A lifting mechanism (2) is arranged on both sides of the machine body (1) and is used to drive the isolation mechanism (3) to move up and down; A filter plate (17) is arranged at the bottom of the machine body (1) and is used to filter seeds; A cleaning mechanism (4) is arranged inside the machine body (1) and above the filter plate (17), and is used to clean the filter plate (17); A driving mechanism (5) is arranged outside the machine body (1) and is used to drive the cleaning mechanism (4) to work; A vibration mechanism (8) is disposed below the filter plate (17) and is used to drive the filter plate (17) to vibrate; Discharge ports (6) are provided on both sides of the machine body (1); the discharge ports (6) are arranged in parallel with the filter plate (17); a discharge bin (7) is fixedly connected to the bottom of the machine body (1); two groups of discharge bins (7) are provided; and a conveying pipe (9) is fixedly connected to the side wall of the machine body (1).

2. The impurity removal device for agricultural planting seeds according to claim 1 is characterized in that: A middle plate (12) is fixedly connected to the middle of the machine body (1); a telescopic plate (121) is slidably arranged in the middle of the middle plate (12); the isolation mechanism (3) comprises an isolation chamber (31); slots (311) are provided on both sides of the isolation chamber (31); the slots (311) are through-set; a sieve hole (33) is provided at the bottom of the isolation chamber (31); a telescopic sieve plate (32) is slidably arranged in the slots (311); an L-pillar (321) is fixedly connected in the telescopic sieve plate (32); a tensioning spring (324) is fixedly connected to one end of the L-pillar (321) away from the telescopic sieve plate (32); the tensioning spring (324) is fixedly connected to the side wall of the machine body (1); the slots (311) are fixedly connected in the bottom of the isolation chamber (31); a tensioning spring (324) is fixedly connected to the side wall of the machine body ( ... A clamping bin (312) is provided; a clamping groove (3121) is provided on a side wall of the clamping bin (312); a telescopic spring (322) is fixedly connected inside the L-pillar (321); a clamping block (323) is fixedly connected to one end of the telescopic spring (322) away from the L-pillar (321); the clamping block (323) is slidably arranged inside the L-pillar (321); the clamping block (323) is clamped with the clamping groove (3121); a top pin (11) is fixedly connected to the side wall of the machine body (1); a top groove (3122) is provided on the bottom of the clamping bin (312); the top groove (3122) is connected with the clamping groove (3121); the top groove (3122) and the top pin (11) are arranged in parallel; and a paddle (34) is fixedly connected to the telescopic screen plate (32).

3. The seed impurity removal device for agricultural planting according to claim 2 is characterized in that: The cleaning mechanism (4) comprises a cleaning chamber (41); a cleaning screw (42) is rotatably connected in the cleaning chamber (41); a slider (43) is threadedly connected to the cleaning screw (42); a cleaning brush (44) is fixedly connected to the slider (43); and the bottom of the cleaning brush (44) abuts against the surface of the filter plate (17).

4. The impurity removal device for agricultural planting seeds according to claim 3 is characterized in that: The side wall of the machine body (1) is fixedly connected with a baffle (13); two groups of the baffle (13) are provided and are located below the middle plate (12); the side wall of the machine body (1) is rotatably connected with an inertia shaft (14); an inertia plate (15) is fixedly connected to the inertia shaft (14); a plurality of groups of the inertia plates (15) are provided; a guide plate (16) is provided above the inertia shaft (14); both ends of the guide plate (16) are fixedly connected to the machine body (1); the driving mechanism (5) comprises a driving gear (51) and a transmission gear (53); the driving gear (51) is rotatably arranged on the side wall of the machine body (1); the input end of the driving gear (51) is fixedly connected to the output end of the inertia shaft (14); the transmission gear (53) is rotatably arranged on the side wall of the cleaning chamber (41); the output end of the transmission gear (53) is fixedly connected to the input end of the cleaning screw (42); a driving belt (52) is sleeved on the driving gear (51) and the transmission gear (53).

5. The seed impurity removal device for agricultural planting according to claim 4, characterized in that: The lifting mechanism (2) comprises a lifting bin (21); a lifting screw rod (22) is rotatably connected inside the lifting bin (21); a lifting block (23) is threadedly connected to the lifting screw rod (22); and one end of the lifting block (23) away from the lifting screw rod (22) is fixedly connected to the isolation bin (31).

6. The impurity removal device for agricultural planting seeds according to claim 5, characterized in that: The vibration mechanism (8) comprises a vibration bin (81); the vibration bin (81) is fixedly connected to a side wall of the machine body (1); a vibration spring (82) is fixedly connected inside the vibration bin (81); an end of the vibration spring (82) away from the vibration bin (81) is fixedly connected to a vibration block (83); the vibration block (83) is slidably arranged inside the vibration bin (81); and an end of the vibration block (83) away from the vibration bin (81) is fixedly connected to a filter plate (17).

7. The impurity removal device for agricultural planting seeds according to claim 6 is characterized in that: A lifting motor (24) is fixedly connected to the top of the lifting bin (21); the lifting screw rod (22) is driven to rotate by the lifting motor (24).

8. A method for removing impurities from seeds for agricultural planting, characterized in that: The following steps are involved: S1, first, the seeds are transported into the body (1) through the transport pipe (9). After the seeds reach the body (1), they stay on the middle plate (12). Then, clean water is poured into the body (1) from the top to soak the seeds. S2, after soaking, impurities and weeds in the seeds will float on the water surface, and then the lifting block (23) will be used to drive the isolation chamber (31) to descend. After descending to a certain distance, the telescopic screen plates (32) in the isolation chamber (31) will merge, and then the isolation chamber (31) will be driven to rise. When rising, the telescopic screen plates (32) will lift up the debris in the water, and then the debris on the telescopic screen plates (32) can be cleaned; S3, after cleaning, the telescopic plate (121) on the middle plate (12) is opened, and the seeds then fall onto the filter plate (17) along with the water flow, and then undergo secondary filtration through the filter plate (17). At the same time, the filter plate (17) can be prevented from being blocked by the vibration mechanism (8) provided.

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