A wind screen seed cleaning machine

Abstract

The present invention discloses a wind-screen seed cleaning machine, which relates to the technical field of seed screening. The present invention includes a feed hopper arranged on a cleaning box, and also includes a vibration screening part and an air blast screening part; the vibration screening part includes a driving component and a screening component, the driving component is used to provide power for the screening component, so that the screening component can reciprocate to achieve vibration screening of seeds and impurities; the air blast screening part includes an air blast guide component and a separation component, and the air blast guide component is used to generate wind power and airflow and conduct it to the separation component. The advantage is that by adopting a cleaning and screening method that cooperates reciprocating uninterrupted vibration screening with air blast screening, it is possible to achieve multi-level screening of seeds, and quickly screen out impurities of different volumes and weights in seeds during screening. In the screening process, the wind force and the dredging rod can be used to achieve automatic dredging of two vibrating mesh plates, which can effectively avoid clogging of the vibrating mesh plates during screening, and the cleaning effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of seed screening, and in particular to a wind screen type seed cleaning machine. Background Art

[0002] Wind screen seed cleaning machine refers to the equipment that uses the cooperation of wind power and screen to realize seed screening. It has the advantages of high efficiency, energy saving and environmental protection, high degree of automation, etc., and is widely used in agricultural planting production and other fields;

[0003] The wind screen type seed cleaning machine uses a variety of methods to screen seeds. For example, the Chinese invention patent with publication number CN111097695A discloses a wind screen type corn seed cleaning machine with a double screen box function, including a base and a second belt, a fixed frame is arranged on the top of the base, and a feed pipe is arranged on the left side of the fixed frame, a first motor is arranged under the feed pipe, and the first motor is rotatably connected to a first motor shaft, and the first motor shaft is rotatably connected to a spiral transmission group;

[0004] When the existing seed cleaning machine uses the screen to clean the seeds, due to the use of vibration cleaning, some seeds and impurities will be pressed into the screen holes in the screen due to collision and extrusion, thereby causing blockage of the screen holes and affecting the cleaning effect. In addition, the wind screen and the vibration screening cannot be organically combined, and the overall screening efficiency is low. For example, the above-mentioned referenced prior art uses a screening method in which multiple groups of screens and screen boxes are matched to screen the seeds. The more the number of screens is, the more likely it is to be blocked when in use. However, the device is not provided with a dredging device, so that the blocked screen cannot continue the screening operation. Moreover, the fan used in the device can only play a role in dust removal, but cannot play a good role in promoting the screening of seeds. The overall screening effect is not good and has certain limitations.

[0005] Therefore, it is urgent to design a wind screen type seed cleaning machine to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a wind screen type seed cleaner, which solves the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wind-screen type seed cleaning machine, comprising a feed hopper arranged on a cleaning box, and also comprising a vibration screening part and an air blast screening part, wherein the vibration screening part is used to perform reciprocating vibration screening on seed raw materials, and screen the seeds and impurities according to the size of the volume, and the air blast screening part can cooperate with the vibration screening part to perform re-classification and screening of the seeds and impurities screened by the vibration screening part according to the size of the weight;

[0008] The vibration screening part includes a driving component and a screening component, wherein the driving component is used to provide power to the screening component so that the screening component can vibrate back and forth to achieve vibration screening of seeds and impurities, and realize automatic anti-blocking and dredging of the screening component during the screening process;

[0009] The blast screening section includes a blast air guide component and a partition component, wherein the blast air guide component is used to generate wind airflow and conduct it to the partition component. The wind airflow cooperates with the partition component to re-screen the seeds and impurities screened by the vibration screening section according to their weight.

[0010] Preferably, a filtering mechanism for filtering large-volume impurities is provided in the feed hopper, and the filtering mechanism includes a filtering screen plate fixedly installed in the feed hopper, and the filtering screen plate is used to block large-volume impurities. A hydraulic pushing rod is fixedly installed in the feed hopper, and a cleaning scraper matching the filtering screen plate is fixedly installed on the driving end of the hydraulic pushing rod. A chip discharge pipe is fixedly connected in the feed hopper, and a control valve is provided in the chip discharge pipe. The cleaning scraper is used to push large-volume impurities on the filtering screen plate so that they can be discharged through the chip discharge pipe.

[0011] Preferably, the driving assembly includes a servo motor fixedly mounted on the side of the cleaning box, a cam plate is rotatably mounted on the driving end of the servo motor through a driving roller, a lifting frame is slidably mounted in the cleaning box, a lifting slider is fixedly mounted on the lower part of the lifting frame, and the lifting slider cooperates with the cam plate.

[0012] Preferably, the screening assembly comprises a plurality of upper spring seats fixedly mounted in the cleaning box, an upper vibration frame is fixedly mounted between the plurality of upper spring seats, and an upper vibration mesh plate for primary screening of seeds and impurities is fixedly mounted in the upper vibration frame;

[0013] A plurality of lower spring seats are fixedly installed at the lower parts of the plurality of upper spring seats, and a lower vibration frame is fixedly installed between the plurality of lower spring seats, a lower vibration mesh plate for re-screening seeds and impurities is fixedly installed in the lower vibration frame, and a plurality of screening mesh holes are arranged on the upper vibration mesh plate and the lower vibration mesh plate, and the aperture of the screening mesh hole on the upper vibration mesh plate is larger than the aperture of the screening mesh hole on the lower vibration mesh plate;

[0014] A dredging mechanism is installed between the upper vibration mesh plate and the lower vibration mesh plate.

[0015] Preferably, the dredging mechanism includes a connecting plate fixedly installed at the lower part of one of the lower spring seats, and the upper part of the lifting frame is fixedly installed at the lower part of the connecting plate, a plurality of lower dredging rods are fixedly installed at the lower part of the upper vibrating mesh plate, and the lower dredging rods cooperate with the plurality of small-aperture screening meshes on the lower vibrating mesh plate, and a plurality of upper dredging rods are fixedly installed on the lower vibrating mesh plate, and the upper dredging rods cooperate with the plurality of large-aperture screening meshes on the upper vibrating mesh plate.

[0016] Preferably, the air blowing and air guiding assembly comprises a fan arranged outside the cleaning box, an air storage pipe is arranged on the air outlet pipe of the fan, and a plurality of air screen tubes are fixedly connected between the air storage pipe and the cleaning box.

[0017] Preferably, the partition assembly comprises a material guide box 1 and a material guide box 2 fixedly installed in the cleaning box for conducting seeds and impurities, and the material guide box 1 cooperates with the upper vibration mesh plate, and the material guide box 2 cooperates with the lower vibration mesh plate, a partition frame 1 is fixedly installed between the material guide box 1 and the cleaning box, a partition frame 2 is fixedly installed between the material guide box 2 and the cleaning box, a partition plate 1 and a partition plate 2 for separating seeds and impurities are fixedly installed in the cleaning box, and the air outlet ends of the plurality of wind screen tubes 1 are all located on the left side of the partition plate 1;

[0018] A discharging mechanism is installed in the cleaning box, and an air blowing mechanism is installed between the first partition frame and the second partition frame.

[0019] Preferably, the air blowing mechanism comprises an air guide box fixedly connected to the upper part of the partition frame 1, a plurality of air screen tubes 2 are fixedly connected between the air guide box and the cleaning box, and the air outlet ends of the plurality of air screen tubes 2 are all located on the right side of the partition plate 2.

[0020] Preferably, the discharging mechanism includes a collecting inclined plate fixedly installed between material guide box one and material guide box two, and the collecting inclined plate is located at the lower part of the lower vibrating mesh plate to collect impurities screened out by it, a plurality of upper air pipes are fixedly connected between the collecting inclined plate and the partition frame two, an impurity discharging box matched with the collecting inclined plate is fixedly connected to the cleaning box, and a plurality of discharging hoppers are fixedly connected to the cleaning box, and the plurality of discharging hoppers are respectively used to collect the screened seeds and impurities.

[0021] Preferably, baffle plates that play a role of limiting and blocking are rotatably installed in the material guide box 1, the material guide box 2 and the air guide box through a rotating shaft, and dust shield plates are rotatably installed on both sides of the cleaning box.

[0022] The present invention provides a wind screen type seed cleaning machine. It has the following beneficial effects:

[0023] 1. When the seed cleaning machine is cleaning the seeds, the feed hopper and its internal filtering mechanism can cooperate to quickly remove large-volume impurities such as straw, branches and leaves in the seed raw materials before seed cleaning and screening, thereby effectively avoiding large-volume impurities falling into the vibration screening part and the blast screening part during seed cleaning, causing entanglement and blockage, and affecting the cleaning effect.

[0024] 2. When the seed cleaning machine is cleaning the seeds, the upper vibrating mesh plate and the lower vibrating mesh plate can be driven by the driving mechanism to realize the reciprocating uninterrupted vibration, so that the seed raw materials can be cleaned and screened for the second time according to the particle size and volume. The screening is more targeted and the cleaning and screening efficiency is higher.

[0025] 3. When the upper vibrating mesh plate and the lower vibrating mesh plate are reciprocatingly vibrating and screening the seeds, the seed cleaning machine can intermittently intersperse the screening meshes on the upper vibrating mesh plate and the lower vibrating mesh plate through the cooperation of multiple upper dredging rods and lower dredging rods arranged thereon, thereby intermittently dredging the upper vibrating mesh plate and the lower vibrating mesh plate, which can effectively avoid the screening meshes in the upper vibrating mesh plate and the lower vibrating mesh plate from being blocked during screening.

[0026] 4. When this seed cleaning machine is cleaning seeds, the upward wind force generated by the air-conducting blowing component can be used to perform a second blowing screening on the seeds after screening by the upper vibrating mesh plate and the lower vibrating mesh plate, and the lighter impurities such as the epidermis and broken leaves in the seeds can be blown up to separate them from the seeds, thereby realizing the second cleaning of the seeds, removing impurities more effectively, and grading the seeds more meticulously.

[0027] 5. This seed cleaning machine can collect and conduct the wind and airflow generated after cleaning the seeds, and can act on the upper vibrating mesh plate and the lower vibrating mesh plate. When the upper vibrating mesh plate and the lower vibrating mesh plate are used to clean the seeds, the upward wind force generated can be blown from bottom to top to the upper vibrating mesh plate and the lower vibrating mesh plate, thereby increasing the vibration amplitude of the seed raw materials on the upper vibrating mesh plate and the lower vibrating mesh plate, and blowing and ventilating the screening meshes on the upper vibrating mesh plate and the lower vibrating mesh plate, thereby playing a certain auxiliary and promoting effect on the dredging of the screening meshes.

[0028] To sum up, the present invention adopts a cleaning and screening method that combines reciprocating uninterrupted vibrating screening with air blast screening, which can not only realize multi-level screening of seeds, but also quickly screen out impurities of different volumes and weights in the seeds during screening. It can also use the cooperation of wind power and dredging rods to realize automatic dredging of the two vibrating mesh plates during the screening process, which can effectively avoid clogging of the vibrating mesh plates during screening and achieve better cleaning effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0030] Figure 1 This is a schematic diagram of the structure of a wind screen type seed cleaning machine proposed by the present invention;

[0031] Figure 2 for Figure 1 Schematic diagram of the structure after rotating a certain angle;

[0032] Figure 3 for Figure 2 A cross-sectional view of the internal structure of the middle feed hopper;

[0033] Figure 4 for Figure 1 A top view of

[0034] Figure 5 for Figure 4 A cross-sectional view of the middle AA;

[0035] Figure 6 for Figure 5 Schematic diagram of the three-dimensional structure;

[0036] Figure 7 for Figure 1 Schematic diagram of the structure after removing the cleaning box and the feeding hopper;

[0037] Figure 8 It is a structural schematic diagram of the vibration sorting part in the present invention;

[0038] Fig. 9 for Figure 8 Schematic diagram of structural decomposition;

[0039] Fig.10 It is a structural schematic diagram of the air blast screening part in the present invention;

[0040] Fig.11 for Fig.10 Front view of the superstructure.

[0041] In the figure: 1 cleaning box, 2 feeding hopper, 3 servo motor, 4 fan, 5 impurity discharge box, 6 discharge hopper, 7 upper vibration frame, 8 upper vibration mesh plate, 9 cam plate, 10 guide box one, 11 guide box two, 12 air storage pipe, 13 partition plate one, 14 driving roller, 15 lifting slider, 16 lifting frame, 17 lower spring seat, 18 upper spring seat, 19 lower vibration frame, 20 lower vibration mesh plate, 21 lower dredging rod, 22 upper dredging rod, 23 partition frame one, 24 partition plate two, 25 partition frame two, 26 wind screen tube two, 27 hydraulic push rod, 28 filter screen plate, 29 cleaning scraper, 30 chip removal pipe, 31 control valve, 32 wind screen tube one, 33 upper air pipe, 34 collecting inclined plate, 35 air guide box. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] Example 1: Reference Figure 1-Figure 6 A wind screen type seed cleaning machine comprises a feed hopper 2 arranged on a cleaning box 1, a filter mechanism for filtering large-volume impurities is arranged in the feed hopper 2, and the filter mechanism comprises a filter screen plate 28 fixedly installed in the feed hopper 2, and the filter screen plate 28 is used to block large-volume impurities;

[0044] The seed raw materials to be cleaned and screened (the seed raw materials include large straws, branches and leaves, relatively small seed shells, seed outer membranes, and seeds of different volumes and weights, etc.) are poured into the feed hopper 2. At this time, the filter screen plate 28 in the feed hopper 2 will perform the initial screening of the seed raw materials, thereby removing the large straws and branches and leaves in the seed raw materials to prevent them from falling into the cleaning box 1 and causing blockage, while the smaller part of the seed raw materials will continue to fall through the filter screen plate 28 and fall into the cleaning box 1 for cleaning and screening;

[0045] A hydraulic push rod 27 is fixedly installed in the feed hopper 2, and a cleaning scraper 29 that matches the filter screen plate 28 is fixedly installed on the driving end of the hydraulic push rod 27. A chip discharge pipe 30 is fixedly connected to the feed hopper 2, and a control valve 31 is arranged in the chip discharge pipe 30. The cleaning scraper 29 is used to push the large volume impurities on the filter screen plate 28 so that they can be discharged through the chip discharge pipe 30;

[0046] The hydraulic push rod 27 can be started regularly and the control valve 31 in the chip discharge pipe 30 can be opened to connect the chip discharge pipe 30. When the hydraulic push rod 27 is started, the cleaning scraper 29 will be pushed to scrape the filter screen plate 28, so that the large volume impurities on the filter screen plate 28 can be pushed and squeezed to fall into the chip discharge pipe 30 and discharged, thereby completing the cleaning work of the filter screen plate 28, so that it can be used for screening and filtering of seed raw materials again.

[0047] A vibration screening part and an air blast screening part are provided in the cleaning box 1, wherein the vibration screening part is used to reciprocatingly vibrate and screen the seed raw materials, and screen the seeds and impurities according to their volume size, and the air blast screening part can cooperate with the vibration screening part to re-classify and screen the seeds and impurities screened by the vibration screening part according to their weight size.

[0048] Example 2: Reference Figure 4-Figure 9The technical solution of this embodiment is different from that of the first embodiment in that: the vibration screening part includes a driving component and a screening component, wherein the driving component is used to provide power for the screening component, so that the screening component can vibrate back and forth to achieve vibration screening of seeds and impurities, and realize automatic anti-blocking and dredging of the screening component during the screening process;

[0049] The driving assembly includes a servo motor 3 fixedly mounted on the side of the cleaning box 1, a cam plate 9 is rotatably mounted on the driving end of the servo motor 3 through a driving roller 14, a lifting frame 16 is slidably mounted in the cleaning box 1, a lifting slider 15 is fixedly mounted on the lower part of the lifting frame 16, and the lifting slider 15 cooperates with the cam plate 9;

[0050] When the servo motor 3 is started, it will drive the cam plate 9 to rotate reciprocatingly through the driving roller 14. When the cam plate 9 rotates, it will alternately and intermittently contact the lifting slider 15. When the cam plate 9 rotates to contact the lifting slider 15, the lifting slider 15 will be gradually pushed up as the cam plate 9 rotates. When the cam plate 9 rotates to no longer contact the lifting slider 15, the lifting slider 15 will automatically fall down under the action of its gravity. With the reciprocating rotation of the cam plate 9, the lifting slider 15 and its upper lifting frame 16 can be reciprocated and lifted, so that the lifting frame 16 can slide reciprocatingly in the cleaning box 1.

[0051] In a further embodiment, the screening assembly includes a plurality of upper spring seats 18 fixedly mounted in the cleaning box 1, an upper vibration frame 7 is fixedly mounted between the plurality of upper spring seats 18, and an upper vibration mesh plate 8 for primary screening of seeds and impurities is fixedly mounted in the upper vibration frame 7;

[0052] A plurality of lower spring seats 17 are fixedly installed at the lower parts of the plurality of upper spring seats 18, and a lower vibration frame 19 is fixedly installed between the plurality of lower spring seats 17, and a lower vibration mesh plate 20 for re-screening seeds and impurities is fixedly installed in the lower vibration frame 19;

[0053] The lower spring seat 17 is composed of two upper and lower mounting plates and a plurality of extrusion springs in the middle, wherein one of the lower mounting plates is fixedly mounted on the lifting frame 16, and the other lower mounting plates are fixed on the side of the cleaning box 1, and the side of the upper mounting plate is fixed on the lower vibration frame 19, and the upper spring seat 18 is composed of an upper fixed plate and two lower vibration springs, wherein the lower parts of the two vibration springs are fixedly mounted on the corresponding upper mounting plates, and the side of the upper fixed plate is fixed on the side of the upper vibration frame 7;

[0054] When the lifting frame 16 slides back and forth, it will drive the lower mounting plate connected to it to move up and down, thereby squeezing or stretching the corresponding squeezing springs, thereby driving the lower vibration frame 19 to move up and down and vibrate reciprocatingly under the cooperation of multiple groups of squeezing springs. When the lower vibration frame 19 reciprocates, it will squeeze or stretch multiple vibration springs, thereby driving the upper vibration frame 7 to move up and down and vibrate reciprocatingly;

[0055] A connecting plate is fixedly installed at the lower part of one of the lower spring seats 17, and the upper part of the lifting frame 16 is fixedly installed at the lower part of the connecting plate. When the lifting frame 16 lifts and slides back and forth, it will drive the lower spring seat 17 to lift and slide through the connecting plate, thereby driving the lower vibration frame 19 to vibrate back and forth. The reciprocating vibration of the lower vibration frame 19 will squeeze multiple lower spring seats 17 and synchronously squeeze or stretch multiple upper spring seats 18, thereby synchronously driving the upper vibration frame 7 and the lower vibration frame 19 to vibrate together, and can drive the upper vibration mesh plate 8 and the lower vibration mesh plate 20 to vibrate together.

[0056] A plurality of screening meshes are provided on both the upper vibration mesh plate 8 and the lower vibration mesh plate 20, and the aperture of the screening meshes on the upper vibration mesh plate 8 is larger than the aperture of the screening meshes on the lower vibration mesh plate 20;

[0057] When the upper vibration screen 8 and the lower vibration screen 20 vibrate, the seed raw materials that fall onto the upper vibration screen 8 through the feed hopper 2 are vibrated and screened, so that the seed raw materials on the upper vibration screen 8 are moved from right to left (see the attached manual). Figure 7 The upper vibration mesh plate 8 gradually slides along the upper vibration mesh plate 8, and while vibrating and sliding, the smaller volume part of the seed material and the impurities fall through the screening mesh holes on the upper vibration mesh plate 8 to the upper part of the lower vibration mesh plate 20, completing the screening of seeds of different particle sizes, while the seeds and impurities on the lower vibration mesh plate 20 continue to vibrate and slide (from left to right, see the instruction manual). Figure 7 The screen is then sieved again during the vibration and sliding process to remove the smaller parts of the seeds and impurities.

[0058] In a further embodiment, a dredging mechanism is installed between the upper vibrating mesh plate 8 and the lower vibrating mesh plate 20, and the dredging mechanism includes a plurality of lower dredging rods 21 fixedly installed at the lower part of the upper vibrating mesh plate 8, and the lower dredging rods 21 cooperate with a plurality of small-aperture screening meshes on the lower vibrating mesh plate 20, and a plurality of upper dredging rods 22 are fixedly installed on the lower vibrating mesh plate 20, and the upper dredging rods 22 cooperate with a plurality of large-aperture screening meshes on the upper vibrating mesh plate 8;

[0059] The upper vibrating mesh plate 8 and the lower vibrating mesh plate 20 will first approach each other and then move away from each other during the reciprocating vibration. When the upper vibrating mesh plate 8 and the lower vibrating mesh plate 20 approach each other, the multiple lower dredging rods 21 located on the upper vibrating mesh plate 8 will be snapped and inserted into the multiple screening meshes in the lower vibrating mesh plate 20, and the multiple upper dredging rods 22 located on the lower vibrating mesh plate 20 will be snapped and inserted into the multiple screening meshes in the upper vibrating mesh plate 8. The multiple lower dredging rods 21 cooperate with the multiple upper dredging rods 22 to reciprocately puncture and dredge the screening meshes on the upper vibrating mesh plate 8 and the lower vibrating mesh plate 20, thereby squeezing out impurities that are blocked in the screening meshes, thereby effectively preventing impurities from accumulating in the screening meshes and causing blockage.

[0060] Example 3: Reference Figure 4-Figure 7 as well as Figure 10-11 The technical solution of this embodiment is different from that of the second embodiment in that the blast screening part includes a blast air guide component and a partition component, wherein the blast air guide component is used to generate a wind flow and conduct it to the partition component, and the wind flow cooperates with the partition component to re-screen the seeds and impurities screened by the vibration screening part according to their weight;

[0061] The air blowing and air guiding assembly includes a fan 4 arranged outside the cleaning box 1, an air storage pipe 12 is arranged on the air outlet pipe of the fan 4, and a plurality of wind screen pipes 32 are fixedly connected between the air storage pipe 12 and the cleaning box 1. When the fan 4 is started, a wind flow is generated, and the wind flow is poured into the cleaning box 1 through the air storage pipe 12 and the plurality of wind screen pipes 32;

[0062] The separation component includes a material guide box 10 and a material guide box 11 fixedly installed in the cleaning box 1 for conducting seeds and impurities, and the material guide box 10 cooperates with the upper vibrating mesh plate 8, and the material guide box 11 cooperates with the lower vibrating mesh plate 20. The seed raw materials on the upper vibrating mesh plate 8 will eventually slide to the side and fall into the material guide box 10, and the seed raw materials on the lower vibrating mesh plate 20 will eventually slide to the side and fall into the material guide box 11, completing the collection of the seed raw materials on the upper vibrating mesh plate 8 and the lower vibrating mesh plate 20.

[0063] In a further embodiment, a partition frame 23 is fixedly installed between the material guide box 10 and the cleaning box 1, a partition frame 25 is fixedly installed between the material guide box 11 and the cleaning box 1, a partition plate 13 and a partition plate 24 for separating seeds and impurities are fixedly installed in the cleaning box 1, and the air outlet ends of the plurality of air screen tubes 32 are all located on the left side of the partition plate 13;

[0064] For easier understanding, please refer to the attached manual. Figure 5 , Attachment Fig.11In the present invention, the left side wall of the cleaning box 1, the bottom wall of the cleaning box 1, the left side of the partition plate 13, and the lower space of the partition rack 1 23 are named seed collection area 1, the bottom wall of the cleaning box 1, the right side of the partition plate 13, and the lower left space of the partition rack 1 23 are named impurity collection area 1, the right side wall of the cleaning box 1, the bottom wall of the cleaning box 1, the right side of the partition plate 24, and the lower space of the partition rack 2 25 are named seed collection area 2, and the bottom wall of the cleaning box 1, the left side of the partition plate 24, and the lower right space of the partition rack 2 25 are named impurity collection area 2. The seed collection area 1, seed collection area 2, impurity collection area 1, and impurity collection area 2 described below are all based on the above description;

[0065] An air blowing mechanism is installed between the partition frame 1 23 and the partition frame 2 25, and the air blowing mechanism includes an air guide box 35 fixedly connected to the upper part of the partition frame 1 23, and a plurality of air screen tubes 2 26 are fixedly connected between the air guide box 35 and the cleaning box 1, and the air outlet ends of the plurality of air screen tubes 2 26 are all located on the right side of the partition plate 2 24;

[0066] The seed material falling into the material guide box 10 will slide into the seed collection area 1 in the cleaning box 1. At this time, the wind blown out through the multiple wind screen tubes 32 will be directly blown into the seed collection area 1, and an upward wind will be formed in the seed collection area 1. When the upward wind contacts the seed material falling in the material guide box 10, the seed shells and seed outer membranes with lighter weight in the seed material will be blown upward by the upward wind flow and separated from the seeds, and enter the impurity collection area 1 driven by the wind flow, while the seeds with heavier weight will not be blown by the wind but continue to fall into the seed collection area 1, thereby completing the separation of large-volume seeds and impurities and collecting them independently;

[0067] A filter is provided in the air guide box 35. The wind flow entering the impurity collection area 1 will be guided out through the air guide box 35 and the plurality of wind screen tubes 26. At this time, the impurities such as seed shells and seed outer membranes in the wind flow will be blocked by the filter and cannot enter the air guide box 35. They will automatically fall into the impurity collection area 1 under the action of gravity, completing the separation and collection of impurities.

[0068] The wind force blown out through the wind screen tube 26 will generate upward wind force in the seed collection area 2, so that the seeds and impurities falling into the guide box 2 11 are blown and separated. The specific separation method is the same as the separation method in the seed collection area 1, and no further description is given again, so that the collection of seeds of different volumes is completed in the seed collection area 1 and the seed collection area 2 respectively, and the collection of light impurities is completed in the impurity collection area 1 and the impurity collection area 2;

[0069] The cleaning box 1 is fixedly connected with a plurality of discharge hoppers 6, which are respectively used to collect the screened seeds and impurities, and are used to respectively discharge and collect the seeds and impurities collected in the seed collection area 1, the seed collection area 2, the impurity collection area 1 and the impurity collection area 2.

[0070] A discharging mechanism is installed in the cleaning box 1, and the discharging mechanism includes a collecting inclined plate 34 fixedly installed between the material guide box 1 10 and the material guide box 2 11, and the collecting inclined plate 34 is located at the lower part of the lower vibration mesh plate 20 for collecting the impurities screened therefrom, and a plurality of upper air pipes 33 are fixedly connected between the collecting inclined plate 34 and the partition frame 2 25, and an impurity discharging box 5 matched with the collecting inclined plate 34 is fixedly connected to the cleaning box 1;

[0071] The collecting inclined plate 34 is used to collect impurities after passing through the lower vibrating mesh plate 20, and the wind flow separated in the impurity collecting area 2 will be introduced into the upper part of the collecting inclined plate 34 through multiple upper air pipes 33, and discharged and collected through the impurity discharge box 5, that is, an upward airflow will be formed to blow the lower vibrating mesh plate 20 and the upper vibrating mesh plate 8 from bottom to top, that is, the seed impurities on the lower vibrating mesh plate 20 and the upper vibrating mesh plate 8 can be blown to move them, thereby improving their vibration effect, and the screening meshes on the lower vibrating mesh plate 20 and the upper vibrating mesh plate 8 can be penetrated when blowing, so as to blow out part of the impurities blocked in the screening meshes, which plays a certain auxiliary role in alleviating the blockage of the screening meshes in the lower vibrating mesh plate 20 and the upper vibrating mesh plate 8.

[0072] The material guide box 1 10, the material guide box 2 11 and the air guide box 35 are all equipped with baffles which play a role of limiting and blocking through rotation of the rotating shaft, and are used to limit the direction of the wind flow to prevent excessive wind flow from entering the material guide box 10 and the material guide box 2 11 and causing obstruction to the feeding of seeds therein. Dust shields are rotatably installed on both sides of the cleaning box 1, and the dust shields play a role of dust blocking, and are used to block the scattered dust generated when the cleaning box 1 vibrates to clean seeds.

[0073] The specific cleaning and screening methods of this seed cleaning machine are as follows:

[0074] Initial seed screening: The seed raw materials to be cleaned and screened are poured into the feed hopper 2. At this time, the filter screen plate 28 in the feed hopper 2 will perform initial screening on the seed raw materials, thereby removing the larger straws and branches and leaves in the seed raw materials.

[0075] Seed vibration screening and anti-blocking dredging: After passing through the feed hopper 2, the seeds will fall onto the upper vibration mesh plate 8. At this time, the driving component will start and drive the upper vibration mesh plate 8 and the lower vibration mesh plate 20 to vibrate back and forth under the cooperation of the internal structure of the screening component. The upper vibration mesh plate 8 will vibrate and screen the seed raw materials thereon, so that the smaller volume part and impurities in the seed raw materials will fall to the upper part of the lower vibration mesh plate 20 through the screening mesh holes on the upper vibration mesh plate 8, completing the screening of seeds of different particle sizes. When the lower vibration mesh plate 20 vibrates, it will vibrate and screen the seeds again, thereby removing the smaller volume part of the seeds and impurities;

[0076] The upper vibrating mesh plate 8 and the lower vibrating mesh plate 20 will first approach each other and then move away from each other during the reciprocating vibration. When the upper vibrating mesh plate 8 and the lower vibrating mesh plate 20 approach each other, the multiple lower dredging rods 21 located on the upper vibrating mesh plate 8 will be snapped and inserted into the multiple screening meshes in the lower vibrating mesh plate 20, and the multiple upper dredging rods 22 located on the lower vibrating mesh plate 20 will be snapped and inserted into the multiple screening meshes in the upper vibrating mesh plate 8. The multiple lower dredging rods 21 cooperate with the multiple upper dredging rods 22 to reciprocately puncture and dredge the screening meshes on the upper vibrating mesh plate 8 and the lower vibrating mesh plate 20, thereby squeezing out impurities that are blocked in the screening meshes, thereby effectively preventing impurities from accumulating in the screening meshes and causing blockage.

[0077] Seed wind selection and screening: the seed raw materials falling into the material guide box 10 will slide into the seed collection area 1 in the cleaning box 1. At this time, the wind blown out through the multiple wind screen tubes 32 will be directly blown into the seed collection area 1, and an upward wind will be formed in the seed collection area 1. When the upward wind contacts the seed raw materials falling in the material guide box 10, the seed shells and seed outer membranes with lighter weight in the seed raw materials will be blown upward by the upward wind flow and separated from the seeds, and enter the impurity collection area 1 driven by the wind flow, while the seeds with heavier weight will not be blown by the wind but continue to fall into the seed collection area 1, thereby completing the separation of large-volume seeds and impurities and collecting them independently;

[0078] The wind blown out through the wind screen tube 26 will generate upward wind force in the seed collection area 2, thereby blowing and separating the seeds and impurities that fall into the material guide box 2 11. The specific separation method is the same as above, and the separation and collection of small-volume seeds and impurities can be completed. Finally, through multiple discharge hoppers 6, the extraction and collection of seeds and impurities of different particle sizes in the seed collection area 1, the seed collection area 2, the impurity collection area 1 and the impurity collection area 2 can be completed.

[0079] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wind screen seed cleaning machine, comprising a feed hopper (2) arranged on a cleaning box (1), characterized in that: It also includes a vibration screening part and an air blast screening part, wherein the vibration screening part is used to reciprocate and vibrate the seed raw material to screen the seeds and impurities according to the volume size, and the air blast screening part can cooperate with the vibration screening part to re-classify and screen the seeds and impurities screened by the vibration screening part according to the weight size; The vibration screening part comprises a driving component and a screening component, wherein the driving component is used to provide power for the screening component so that the screening component can vibrate back and forth to achieve vibration screening of seeds and impurities, and realize automatic anti-blocking and dredging of the screening component during the screening process, the driving component comprises a servo motor (3) fixedly mounted on the side of the cleaning box (1), a cam plate (9) is rotatably mounted on the driving end of the servo motor (3) through a driving roller (14), a lifting frame (16) is slidably mounted in the cleaning box (1), a lifting slide block (15) is fixedly mounted on the lower part of the lifting frame (16), and the lifting slide block (15) cooperates with the cam plate (9); The screening assembly comprises a plurality of upper spring seats (18) fixedly mounted in the cleaning box (1), an upper vibration frame (7) being fixedly mounted between the plurality of upper spring seats (18), and an upper vibration mesh plate (8) for primary screening of seeds and impurities being fixedly mounted in the upper vibration frame (7); A plurality of lower spring seats (17) are fixedly mounted on the lower parts of the plurality of upper spring seats (18), and a lower vibration frame (19) is fixedly mounted between the plurality of lower spring seats (17), a lower vibration mesh plate (20) for re-screening seeds and impurities is fixedly mounted in the lower vibration frame (19), and a plurality of screening mesh holes are arranged on the upper vibration mesh plate (8) and the lower vibration mesh plate (20), and the aperture of the screening mesh hole on the upper vibration mesh plate (8) is larger than the aperture of the screening mesh hole on the lower vibration mesh plate (20); A dredging mechanism is installed between the upper vibrating mesh plate (8) and the lower vibrating mesh plate (20), the dredging mechanism comprising a connecting plate fixedly installed at the lower part of one of the lower spring seats (17), and the upper part of the lifting frame (16) is fixedly installed at the lower part of the connecting plate, a plurality of lower dredging rods (21) are fixedly installed at the lower part of the upper vibrating mesh plate (8), and the lower dredging rods (21) cooperate with a plurality of small-aperture screening meshes on the lower vibrating mesh plate (20), and a plurality of upper dredging rods (22) are fixedly installed on the lower vibrating mesh plate (20), and the upper dredging rods (22) cooperate with a plurality of large-aperture screening meshes on the upper vibrating mesh plate (8); The blast screening part includes a blast air guide component and a partition component, wherein the blast air guide component is used to generate wind power and airflow and conduct it to the partition component, and the wind power and airflow cooperate with the partition component to re-screen the seeds and impurities screened by the vibration screening part according to their weight; The separation component comprises a material guide box 1 (10) and a material guide box 2 (11) fixedly installed in the cleaning box (1) for conducting seeds and impurities, and the material guide box 1 (10) cooperates with the upper vibration mesh plate (8), and the material guide box 2 (11) cooperates with the lower vibration mesh plate (20), a partition frame 1 (23) is fixedly installed between the material guide box 1 (10) and the cleaning box (1), a partition frame 2 (25) is fixedly installed between the material guide box 2 (11) and the cleaning box (1), a partition plate 1 (13) and a partition plate 2 (24) for separating seeds and impurities are fixedly installed in the cleaning box (1), and the air outlet ends of the plurality of wind screen tubes 1 (32) are all located on the left side of the partition plate 1 (13); An air blowing mechanism is installed between the partition frame 1 (23) and the partition frame 2 (25), and the air blowing mechanism includes an air guide box (35) fixedly connected to the upper part of the partition frame 1 (23), and a plurality of air screen tubes 2 (26) are fixedly connected between the air guide box (35) and the cleaning box (1), and the air outlet ends of the plurality of air screen tubes 2 (26) are all located on the right side of the partition plate 2 (24); A discharging mechanism is installed in the cleaning box (1), and the discharging mechanism includes a collecting inclined plate (34) fixedly installed between the first material guide box (10) and the second material guide box (11), and the collecting inclined plate (34) is located at the lower part of the lower vibration mesh plate (20) for collecting impurities screened therefrom, and a plurality of upper air pipes (33) are fixedly connected between the collecting inclined plate (34) and the second partition frame (25), and an impurity discharging box (5) matched with the collecting inclined plate (34) is fixedly connected to the cleaning box (1), and a plurality of discharging hoppers (6) are fixedly connected to the cleaning box (1), and the plurality of discharging hoppers (6) are respectively used to collect the screened seeds and impurities.

2. The wind screen seed cleaning machine according to claim 1, characterized in that: The feed hopper (2) is provided with a filtering mechanism for filtering large-volume impurities, the filtering mechanism comprising a filtering screen plate (28) fixedly mounted in the feed hopper (2), the filtering screen plate (28) being used to block large-volume impurities, a hydraulic push rod (27) being fixedly mounted in the feed hopper (2), a cleaning scraper (29) matching the filtering screen plate (28) being fixedly mounted on the driving end of the hydraulic push rod (27), a chip discharge pipe (30) being fixedly connected in the feed hopper (2), and a control valve (31) being arranged in the chip discharge pipe (30), the cleaning scraper (29) being used to push large-volume impurities on the filtering screen plate (28) so that the impurities can be discharged through the chip discharge pipe (30).

3. The wind screen seed cleaning machine according to claim 1, characterized in that: The air blowing and air guiding assembly comprises a fan (4) arranged outside the cleaning box (1), an air storage pipe (12) being arranged on the air outlet pipe of the fan (4), and a plurality of air screen pipes (32) being fixedly connected between the air storage pipe (12) and the cleaning box (1).

4. The wind screen seed cleaning machine according to claim 1, characterized in that: The material guide box 1 (10), the material guide box 2 (11) and the air guide box (35) are all provided with shielding plates which play a role of limiting and blocking and are rotatably installed via a rotating shaft, and dust shielding plates are rotatably installed on both sides of the cleaning box (1).

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