Grain screening device of agricultural robot and using method of grain screening device

By using the reciprocating screw driven by the storage frame and the driving motor in the grain screening device, and using the air outlet frame to remove impurities, the problems of grain accumulation and impurities flying are solved, and the screening quality and the cleanliness of the processing environment are improved. .

CN119158793APending Publication Date: 2024-12-20SHANDONG YUHE INTELLIGENT TECH CO LTD +1
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Patent Information

Application Number
CN202411513408.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2024-12-20

AI Technical Summary

Technical Problem

During the screening process, existing grain screening devices are prone to cause uneven grain accumulation and flying impurities, affecting the screening quality and processing environment.

Method used

A grain screening device for agricultural robots is designed. By placing grains in the storage frame and using a driving motor to drive the reciprocating screw to evenly distribute the grains in the conveyor belt, and removing impurities through the air outlet frame. The impurities are collected in the collection frame to avoid Flying.

Benefits of technology

It realizes uniform distribution and efficient screening of grains, avoids impurities flying, and improves screening quality and cleanliness of the processing environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a grain screening device of an agricultural robot and a using method of the grain screening device. The grain screening device comprises a conveying frame, rotating shafts are rotationally connected to the two ends of the inner side face of the conveying frame, the outer side faces of the two rotating shafts are sleeved with conveying belts, and a mounting frame is fixedly mounted at one end of one side of the conveying frame. According to the grain screening device of the agricultural robot and the using method of the grain screening device, grains are placed on the inner side face of a storage frame, then a reciprocating lead screw is driven by a driving motor to move back and forth in a moving block, and therefore a discharging pipe is driven to move back and forth; in this way, grains can be evenly distributed on the conveying belt to be prevented from being stacked, the grain screening quality is improved, the grains fall to the inner side face of the fixing frame, then impurities are removed through the air outlet frame, the removed impurities are collected on the inner side face of the collecting frame, and therefore the processing environment is prevented from being affected.
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Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a grain screening device of an agricultural robot and a use method thereof. Background Art

[0002] After harvesting grains such as rice, wheat, and soybeans, a lot of dust, husks, broken platycodons, and other debris will remain. In order to increase the quality of the grains, the grains need to be screened before storage.

[0003] When screening grains, a grain screening device is required, such as the patent application with announcement number CN221602543 U in the prior art, which includes a mounting seat through a conveying mechanism, rollers are equidistantly mounted on the inner side wall of the mounting seat, a conveyor belt is rolled and mounted on the rollers, a motor mounting plate is mounted on one side of the conveying mechanism along its width direction, a connecting frame is fixedly mounted on one end of the hydraulic press along its width direction, an L-shaped hanging plate is fixedly mounted on the end of the mounting box close to the hydraulic press; the mounting box is hung on the connecting frame through the L-shaped hanging plate; a fan is symmetrically mounted on the end of the mounting box away from the L-shaped hanging plate. Pour the grains onto the conveyor belt in the mounting seat, the rollers roll the conveyor belt to make the grains fall down from the highest port of the mounting seat, and a fan is symmetrically mounted on the end of the mounting box away from the L-shaped hanging plate, so that when the grains fall down from the port of the mounting seat, the impurities in the grains are blown out by the fans symmetrically mounted on the mounting box, so that the grains are screened and separated from the impurities.

[0004] However, when screening the grains, the device directly places the grains on the inner side of the feeding port, and then transports them to the conveyor belt through the feeding port. This easily causes the grains to pile up and is difficult to evenly distribute on the conveyor belt, making it inconvenient for subsequent screening. In addition, the fan is directly installed at the bottom of the conveying mechanism to blow the grains, which easily causes impurities to fly in the screening environment and affect the screening environment.

[0005] Therefore, it is necessary to provide a grain screening device for an agricultural robot and a method of using the same to solve the above-mentioned technical problems. Summary of the invention

[0006] The invention provides a grain screening device of an agricultural robot and a use method thereof, which solves the problem that grains are piled up and impurities fly around randomly in a screening environment, thus affecting the screening quality and processing environment.

[0007] In order to solve the above technical problems, the present invention provides a grain screening device for an agricultural robot, comprising: A conveying frame, both ends of the inner side of the conveying frame are rotatably connected with a rotating shaft, the outer sides of the two rotating shafts are sleeved with a conveyor belt, one end of one side of the conveying frame is fixedly installed with a mounting frame, one side of the mounting frame is fixedly installed with a driving motor, and the output end of the driving motor is fixedly installed on one end of one of the rotating shafts; The lifting of the ... A driving pulley, the driving pulley is fixedly mounted on the outer side of the output end of the driving motor, a belt is sleeved on the outer side of the driving pulley, a driven pulley is sleeved on the inner side of the belt, and the driven pulley is fixedly mounted on the other end of the reciprocating screw rod; A support column, the support column is fixedly mounted on the other end of the bottom of the conveying frame; A fixed frame, the fixed frame is fixedly installed on the side of the support column, an air outlet frame is fixedly installed on one side of the fixed frame, a fan is fixedly installed on the output end of the air outlet frame, the fan is fixedly installed on the side of the air outlet frame, a collecting frame is fixedly installed on the other side of the fixed frame, a filter is fixedly installed on the side of the collecting frame, and a filter plate is slidably connected to the inside of the bottom of the collecting frame.

[0008] Preferably, a bottom plate is fixedly mounted on the bottom of the support column, rolling grooves are provided at both ends of the bottom plate, and rollers are rollingly connected to the inner side surfaces of the rolling grooves.

[0009] Preferably, a threaded rod is provided on the side of the rolling groove, the threaded rod is threadedly connected to the inside of the bottom plate, a rotating plate is fixedly installed on the top of the threaded rod, and a pad is rotatably connected to the bottom of the threaded rod.

[0010] Preferably, a feed frame is fixedly installed on the top of the fixed frame, and a discharge frame is fixedly installed on the bottom of the fixed frame.

[0011] Preferably, the feed frame is arranged at the bottom of the conveying frame, and the air outlet frame and the collecting frame are arranged opposite to each other.

[0012] Preferably, a material guide plate is fixedly mounted on the inner side surface of the fixed frame, and the material guide plate is arranged on the top of the air outlet frame.

[0013] Preferably, universal wheels are fixedly mounted on both sides of one end of the bottom of the conveying frame, and a handle is fixedly mounted on one end of the filter plate.

[0014] Preferably, an observation window is fixedly mounted on the end surface of the collection frame, and slide rails are provided on both sides of the observation window, and the slide rails are fixedly mounted on the end surface of the collection frame.

[0015] Preferably, the inner side surface of the slide rail is slidably connected with a baffle, and the side surface of the baffle is fixedly mounted with a pushing block.

[0016] In order to solve the above problems, the present invention also provides a method for using a grain screening device of an agricultural robot, which is characterized by comprising the following steps: S1, when using the device, a user places grains to be screened on the inner side of a storage frame, so that the storage frame stores the grains to be screened; S2, the user then starts the driving motor, so that the driving motor drives the rotating shaft and the driving pulley to rotate, so that the rotating shaft drives the conveying shaft to move, and at the same time the driving pulley drives the driven pulley to rotate through the belt, and then the driven pulley drives the reciprocating screw to rotate, so that the reciprocating screw is threadedly connected inside the moving block, and then the moving block drives the mounting block to move back and forth on the top of the conveyor belt, so that the grains on the inner side of the storage frame are evenly distributed on the conveyor belt, and then the grains are transported to one end of the conveyor frame through the conveyor belt; S3, the grains fall from one end of the conveyor belt to the inner side of the feed frame, then enter the inner side of the fixed frame, and fall on the guide plate. Then the user starts the fan to blow the gas into the inner side of the fixed frame through the air outlet frame, and then the impurities on the surface of the grains enter the inner side of the collection frame, and the grains are discharged through the discharge frame; S4. After the screening is completed, the user can pull the handle to make the handle drive the filter plate to slide inside the bottom of the collection frame, so that the impurities accumulated on the top of the filter plate fall off, so that the staff can collect and process the impurities.

[0017] Compared with the related art, the grain screening device of an agricultural robot and the use method thereof provided by the present invention have the following beneficial effects: The present invention provides a grain screening device of an agricultural robot and a method for using the device. The grains are placed on the inner side of a storage frame, and then a reciprocating screw rod is driven by a driving motor to move back and forth inside a moving block, thereby driving a discharge pipe to move back and forth. In this way, the grains can be evenly distributed on a conveyor belt to avoid accumulation, thereby increasing the quality of grain screening, and the grains are made to fall to the inner side of a fixed frame, and then impurities are removed through an air outlet frame, and the removed impurities are collected on the inner side of the collection frame, thereby avoiding affecting the processing environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a first embodiment of a grain screening device for an agricultural robot provided by the present invention; Figure 2 for Figure 1 The schematic diagram of the conveying frame structure shown; Figure 3 for Figure 2 Another perspective structural schematic diagram shown; Figure 4 for Figure 1 The schematic diagram of the support column structure shown; Figure 5 for Figure 4 Another perspective structural schematic diagram shown; Figure 6 for Figure 5 The schematic diagram of the side section structure of the screening frame shown; Figure 7 This is a schematic structural diagram of a second embodiment of a grain screening device for an agricultural robot provided by the present invention.

[0019] Numbers in the figure: 1, conveying frame, 11, rotating shaft, 12, conveyor belt, 13, mounting frame, 14, driving motor, 15, universal wheel, 2, driving pulley, 21, belt, 22, driven pulley, 23, reciprocating screw, 24, moving block, 25, slide rod, 3, support frame, 31, storage frame, 32, corrugated telescopic tube, 33, mounting block, 34, discharge pipe, 4, support column, 41, bottom plate, 42, rolling groove, 43, roller, 44, threaded rod, 45, pad, 46, rotating plate, 5, fixed frame, 51, feed frame, 52, discharge frame, 53, air outlet frame, 54, fan, 55, collection frame, 56, filter screen, 57, filter plate, 58, handle, 59, guide plate, 6, observation window, 61, slide rail, 62, baffle, 63, push block. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0021] First embodiment Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in, Figure 1 A schematic structural diagram of a first embodiment of a grain screening device for an agricultural robot provided by the present invention; Figure 2 for Figure 1 The schematic diagram of the conveying frame structure shown; Figure 3 for Figure 2 Another perspective structural schematic diagram shown; Figure 4 for Figure 1 The schematic diagram of the support column structure shown; Figure 5 for Figure 4 Another perspective structural schematic diagram shown; Figure 6 for Figure 5 A grain screening device of an agricultural robot comprises: a conveying frame 1, both ends of the inner side of the conveying frame 1 are rotatably connected to a rotating shaft 11, and the outer sides of the two rotating shafts 11 are sleeved with a conveyor belt 12, one end of one side of the conveying frame 1 is fixedly installed with a mounting frame 13, one side of the mounting frame 13 is fixedly installed with a driving motor 14, and the output end of the driving motor 14 is fixedly installed on one end of the rotating shaft 11; A support frame 3, wherein the support frames 3 are fixedly installed on both sides of the conveying frame 1 respectively, a material storage frame 31 is fixedly installed in the middle of the two support frames 3, a corrugated telescopic tube 32 is fixedly installed at the bottom of the material storage frame 31, a mounting block 33 is fixedly installed at the bottom of the corrugated telescopic tube 32, a discharge pipe 34 is fixedly installed at the bottom of the mounting block 33, a sliding rod 25 is fixedly installed in the middle of the two support frames 3, a moving block 24 is slidably connected to the outer side surface of the sliding rod 25, the moving block 24 is fixedly installed on one side of the mounting block 33, a reciprocating screw rod 23 is connected to the internal thread of the moving block 24, one end of the reciprocating screw rod 23 is rotatably connected to one side of one of the support frames 3, and the other end of the reciprocating screw rod 23 passes through one side of the other support frame 3 and extends to the side; A driving pulley 2, the driving pulley 2 is fixedly mounted on the outer side of the output end of the driving motor 14, the outer side of the driving pulley 2 is sleeved with a belt 21, the inner side of the belt 21 is sleeved with a driven pulley 22, and the driven pulley 22 is fixedly mounted on the other end of the reciprocating screw rod 23; A support column 4, wherein the support column 4 is fixedly mounted at the other end of the bottom of the conveying frame 1; A fixed frame 5 is fixedly installed on the side of the support column 4, an air outlet frame 53 is fixedly installed on one side of the fixed frame 5, a fan 54 is fixedly installed on the output end of the air outlet frame 53, and the fan 54 is fixedly installed on the side of the air outlet frame 53; a collecting frame 55 is fixedly installed on the other side of the fixed frame 5, a filter screen 56 is fixedly installed on the side of the collecting frame 55, and a filter plate 57 is slidably connected to the inside of the bottom of the collecting frame 55.

[0022] When in use, the gas is discharged through the filter 56, so that the impurities are left on the inner side of the collection frame 55, preventing the impurities from flying out and affecting the screening environment; When it is necessary to clean the impurities, the user only needs to pull the filter plate 57 to discharge the impurities on the inner side of the collection frame 55; When in use, the slide bar 25 can limit the moving block 24 to prevent the moving block 24 from rotating, thereby increasing the stability of the moving block 24 when moving.

[0023] A bottom plate 41 is fixedly mounted on the bottom of the support column 4 , and rolling grooves 42 are formed at both ends of the bottom plate 41 . Rollers 43 are rollingly connected to the inner side surfaces of the rolling grooves 42 .

[0024] By installing universal wheels 15 at the bottom of the support column 4 and the bottom of the conveying frame 1, it is convenient for the staff to move the position of the device when it is in use, thereby increasing the mobility of the device.

[0025] A threaded rod 44 is disposed on the side of the rolling groove 42 . The threaded rod 44 is threadedly connected to the inside of the bottom plate 41 . A rotating plate 46 is fixedly mounted on the top of the threaded rod 44 . A pad 45 is rotatably connected to the bottom of the threaded rod 44 .

[0026] The threaded rod 44 is threadedly connected inside the bottom plate 41 , and then drives the pad 45 to move downward, so that the bottom plate 41 can be limited and the level of the bottom plate 41 can be adjusted.

[0027] A feeding frame 51 is fixedly installed on the top of the fixed frame 5 , and a discharging frame 52 is fixedly installed on the bottom of the fixed frame 5 .

[0028] The feeding frame 51 is arranged at the bottom of the conveying frame 1 , and the air outlet frame 53 and the collecting frame 55 are arranged opposite to each other.

[0029] A material guide plate 59 is fixedly mounted on the inner side surface of the fixed frame 5 , and the material guide plate 59 is arranged on the top of the air outlet frame 53 .

[0030] Universal wheels 15 are fixedly mounted on both sides of one end of the bottom of the conveying frame 1 , and a handle 58 is fixedly mounted on one end of the filter plate 57 .

[0031] The working principle of the grain screening device of an agricultural robot provided by the present invention is as follows: When in use, the user places the grains to be screened on the inner side of the storage frame 31, so that the storage frame 31 stores the grains to be screened; Then the user starts the driving motor 14, so that the driving motor 14 drives the rotating shaft 11 and the driving pulley 2 to rotate, so that the rotating shaft 11 drives the conveying shaft 12 to move, and at the same time the driving pulley 2 drives the driven pulley 22 to rotate through the belt 21, and then the driven pulley 22 drives the reciprocating screw rod 23 to rotate, so that the reciprocating screw rod 23 is threadedly connected inside the moving block 24, and then the moving block 24 drives the mounting block 33 to move back and forth on the top of the conveyor belt 12, so that the grains on the inner side of the storage frame 31 are evenly distributed on the conveyor belt 12, and then the grains are transported to one end of the conveyor frame 1 through the conveyor belt 12; The grains fall from one end of the conveyor belt 12 to the inner side of the feed frame 51, then enter the inner side of the fixed frame 5, and fall on the guide plate 59. Then the user starts the fan 54 to blow the gas into the inner side of the fixed frame 5 through the air outlet frame 53, and then the impurities on the surface of the grains enter the inner side of the collection frame 55, and the grains are discharged through the discharge frame 52. After the screening is completed, the user can pull the handle 58 to make the handle 58 drive the filter plate 57 to slide inside the bottom of the collection frame 55, so that the impurities accumulated on the top of the filter plate 57 fall off, making it easier for the staff to collect and process the impurities.

[0032] Compared with the related art, the grain screening device of the agricultural robot provided by the present invention has the following beneficial effects: By placing the grains on the inner side of the storage frame 31, and then driving the reciprocating screw 23 to move back and forth inside the moving block 24 through the driving motor 14, thereby driving the discharge pipe 34 to move back and forth, the grains can be evenly distributed on the conveyor belt 12 to avoid accumulation, thereby increasing the quality of grain screening, and allowing the grains to fall to the inner side of the fixed frame 5, and then the impurities are removed through the air outlet frame 53, and the removed impurities are collected on the inner side of the collection frame 55, so as to avoid affecting the processing environment.

[0033] Second embodiment Please refer to Figure 7Based on the grain screening device of an agricultural robot provided in the first embodiment of the present application, the second embodiment of the present application proposes another grain screening device of an agricultural robot. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0034] Specifically, the difference of the grain screening device of an agricultural robot provided in the second embodiment of the present application is that, in a grain screening device of an agricultural robot, an observation window 6 is fixedly installed on the end surface of the collection frame 55, and slide rails 61 are provided on both sides of the observation window 6, and the slide rails 61 are fixedly installed on the end surface of the collection frame 55.

[0035] The inner side surface of the slide rail 61 is slidably connected with a baffle 62 , and the side surface of the baffle 62 is fixedly mounted with a push block 63 .

[0036] The baffle 62 is arranged on the front side of the observation window 6 and can protect the observation window 6 when in use.

[0037] The working principle of the grain screening device of an agricultural robot provided by the present invention is as follows: When in use, the user can move the push block 63 upward, so that the push block 63 drives the baffle 62 to move upward, so that the baffle 62 moves away from the front of the observation window 6. At this time, the user can observe the inner side of the collection frame 55 through the observation window 6, so that the user can clean the impurities inside the collection frame 55 in time.

[0038] Compared with the related art, the grain screening device of the agricultural robot provided by the present invention has the following beneficial effects: By installing an observation window 6 on the front of the collection frame 55, it is convenient for the user to observe the inner side of the collection frame 55, so as to clean the impurities inside the collection frame 55 in time, and by providing a baffle 62 on the front of the observation window 6, the observation window 6 can be protected.

[0039] In order to solve the above problems, the present invention also provides a method for using a grain screening device of an agricultural robot, which is characterized by comprising the following steps: S1, when using the device, the user places the grains to be screened on the inner side of the storage frame 31, so that the storage frame 31 stores the grains to be screened; S2, then the user starts the driving motor 14, so that the driving motor 14 drives the rotating shaft 11 and the driving pulley 2 to rotate, so that the rotating shaft 11 drives the conveying shaft 12 to move, and at the same time the driving pulley 2 drives the driven pulley 22 to rotate through the belt 21, and then the driven pulley 22 drives the reciprocating screw rod 23 to rotate, so that the reciprocating screw rod 23 is threadedly connected inside the moving block 24, and then the moving block 24 drives the mounting block 33 to move back and forth on the top of the conveyor belt 12, so that the grains on the inner side of the storage frame 31 are evenly distributed on the conveyor belt 12, and then the grains are transported to one end of the conveyor frame 1 through the conveyor belt 12; S3, the grains fall from one end of the conveyor belt 12 to the inner side of the feed frame 51, then enter the inner side of the fixed frame 5, and fall on the guide plate 59. Then the user starts the fan 54 to blow the gas into the inner side of the fixed frame 5 through the air outlet frame 53, and then the impurities on the surface of the grains enter the inner side of the collection frame 55, and the grains are discharged through the discharge frame 52; S4. After the screening is completed, the user can pull the handle 58 to make the handle 58 drive the filter plate 57 to slide inside the bottom of the collection frame 55, so that the impurities accumulated on the top of the filter plate 57 fall off, so that the staff can collect and process the impurities.

[0040] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A grain screening device for an agricultural robot, It is characterized in that include: A conveying frame, both ends of the inner side of the conveying frame are rotatably connected with a rotating shaft, the outer sides of the two rotating shafts are sleeved with a conveyor belt, one end of one side of the conveying frame is fixedly installed with a mounting frame, one side of the mounting frame is fixedly installed with a driving motor, and the output end of the driving motor is fixedly installed on one end of one of the rotating shafts; The lifting of the ... A driving pulley, the driving pulley is fixedly mounted on the outer side of the output end of the driving motor, a belt is sleeved on the outer side of the driving pulley, a driven pulley is sleeved on the inner side of the belt, and the driven pulley is fixedly mounted on the other end of the reciprocating screw rod; A support column, the support column is fixedly mounted on the other end of the bottom of the conveying frame; A fixed frame, the fixed frame is fixedly installed on the side of the support column, an air outlet frame is fixedly installed on one side of the fixed frame, a fan is fixedly installed on the output end of the air outlet frame, the fan is fixedly installed on the side of the air outlet frame, a collecting frame is fixedly installed on the other side of the fixed frame, a filter is fixedly installed on the side of the collecting frame, and a filter plate is slidably connected to the inside of the bottom of the collecting frame.

2. A grain screening device for an agricultural robot according to claim 1, It is characterized in that A bottom plate is fixedly mounted on the bottom of the support column, rolling grooves are provided at both ends of the bottom plate, and rollers are rollingly connected to the inner side surfaces of the rolling grooves.

3. The grain screening device of an agricultural robot according to claim 2, It is characterized in that A threaded rod is arranged on the side of the rolling groove, the threaded rod is threadedly connected to the inside of the bottom plate, a rotating plate is fixedly installed on the top of the threaded rod, and a pad is rotatably connected to the bottom of the threaded rod.

4. The grain screening device of an agricultural robot according to claim 1, It is characterized in that A feeding frame is fixedly installed on the top of the fixed frame, and a discharging frame is fixedly installed on the bottom of the fixed frame.

5. The grain screening device of an agricultural robot according to claim 4, It is characterized in that The feeding frame is arranged at the bottom of the conveying frame, and the air outlet frame and the collecting frame are arranged opposite to each other.

6. The grain screening device of an agricultural robot according to claim 5, It is characterized in that A material guide plate is fixedly mounted on the inner side surface of the fixed frame, and the material guide plate is arranged on the top of the air outlet frame.

7. The grain screening device of an agricultural robot according to claim 1, It is characterized in that Universal wheels are fixedly mounted on both sides of one end of the bottom of the conveying frame, and a handle is fixedly mounted on one end of the filter plate.

8. The grain screening device of an agricultural robot according to claim 1, It is characterized in that An observation window is fixedly installed on the end surface of the collection frame, and slide rails are arranged on both sides of the observation window, and the slide rails are fixedly installed on the end surface of the collection frame.

9. The grain screening device of an agricultural robot according to claim 8, It is characterized in that The inner side surface of the slide rail is slidably connected with a baffle, and the side surface of the baffle is fixedly installed with a pushing block.

10. A method for using a grain screening device of an agricultural robot, It is characterized in that The following steps are involved: S1. When using the device, the user places the grains to be screened on the inner side of the storage frame, so that the storage frame stores the grains to be screened; S2, the user then starts the driving motor, so that the driving motor drives the rotating shaft and the driving pulley to rotate, so that the rotating shaft drives the conveying shaft to move, and at the same time the driving pulley drives the driven pulley to rotate through the belt, and then the driven pulley drives the reciprocating screw to rotate, so that the reciprocating screw is threadedly connected inside the moving block, and then the moving block drives the mounting block to move back and forth on the top of the conveyor belt, so that the grains on the inner side of the storage frame are evenly distributed on the conveyor belt, and then the grains are transported to one end of the conveyor frame through the conveyor belt; S3, the grains fall from one end of the conveyor belt to the inner side of the feed frame, then enter the inner side of the fixed frame, and fall on the guide plate. Then the user starts the fan to blow the gas into the inner side of the fixed frame through the air outlet frame, and then the impurities on the surface of the grains enter the inner side of the collection frame, and the grains are discharged through the discharge frame; S4. After the screening is completed, the user can pull the handle to make the handle drive the filter plate to slide inside the bottom of the collection frame, so that the impurities accumulated on the top of the filter plate fall off, so that the staff can collect and process the impurities.

Citation Information

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