Seed dressing device for bean planting

Abstract

The utility model discloses a seed dressing device for bean planting, and relates to the technical field of seed treatment equipment. The technical key points are as follows: the device comprises a main frame body, a stirring barrel is mounted in the middle of the main frame body, a spiral stirring blade is mounted in the stirring barrel, the lower end of a main shaft of the spiral stirring blade is connected with an output shaft of a stirring motor, and a discharge chute is mounted on one side of the bottom of the stirring barrel; a protective cover is fixedly mounted at the top of the main frame body, a seed adding opening is formed in the top of the protective cover, and a seed selecting mechanism is arranged in the protective cover and can screen seeds falling into the stirring barrel from the seed adding opening. According to the bean seed screening device, when bean seeds are added in an agrochemical mode, screening work on the bean seeds can be automatically completed, compared with the prior art, the seed dressing efficiency is improved, the seed dressing operation process of farmers is simplified, and the labor intensity of the farmers in the seed dressing process is effectively reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of seed treatment equipment, and in particular to a seed dressing device for legume planting. BACKGROUND

[0002] Before sowing, legume crops often need to be dressed, which plays an important role in the final output of legume crops. Reasonable dressing of legume crops can not only prevent insect pests during the growth of legume crops, but also promote the rapid growth of legume crops and increase the yield. The conventional legume dressing process is roughly as follows: first, the farmer selects and processes the seeds, removes damaged, shriveled and other abnormal legume seeds, and some impurities such as dry branches and leaves that may be mixed during the collection and storage of the legume seeds, so as to avoid unnecessary waste of dressing materials caused by these problematic seeds or impurities in the subsequent dressing process; next, the dressing equipment is cleaned to avoid the influence of residual pesticides or seed dressings on the dressing effect; then, the seed dressing or micro-fertilizer solution is prepared according to the use instructions of the seed dressing or micro-fertilizer; then, the selected legume seeds are placed in the stirring equipment, the farmer holds the plastic bottle containing the seed dressing or micro-fertilizer solution, and slowly pours the seed dressing or micro-fertilizer solution into the stirring equipment, and as the stirring equipment is turned over, the seed dressing or micro-fertilizer solution will uniformly wrap the legume seeds; finally, the dressed legume seeds are placed in a well-ventilated place for air drying (avoiding direct sunlight), and preferably sowing within 6-12 hours after dressing.

[0003] The legume dressing equipment commonly used by farmers has a structure similar to that of the patent document with the application number 201821742999.7. Although this dressing equipment can greatly improve the dressing efficiency of the seeds compared with the traditional manual dressing, it has a simple structure and can only simply perform the dressing work of the seeds, and does not have the function of selecting the seeds to be dressed, which requires the farmer to use manual or another device to select the seeds before using the device, which not only increases the labor intensity of the farmer, but also prolongs the dressing period and reduces the dressing efficiency. CONTENT OF THE UTILITY MODEL

[0004] The application provides a legume dressing device for planting, which can simplify the operation steps of the farmer during dressing, improve the dressing efficiency, and reduce the labor intensity of the farmer.

[0005] The above-mentioned object of the application is realized by the following technical scheme:

[0006] The utility model provides a kind of seed dressing device for legume planting, including main frame body, the middle position of the main frame body is fixedly installed with stirring barrel, spiral stirring vane is installed in the stirring barrel, the lower end of the spiral stirring vane main shaft is connected with the output shaft of stirring motor after passing through the bottom plate of the stirring barrel, the shell of the stirring motor is fixedly connected with the main frame body by motor support, one side of the stirring barrel bottom is equipped with discharge chute.

[0007] The top of the main frame body is fixedly installed with a protective cover, the top of the protective cover is provided with a seed adding port, the lower end of the protective cover is open, and the lower end of the protective cover is open to cover the top of the stirring barrel. The protective cover is provided with a seed selection mechanism, which can screen the seeds falling into the stirring barrel from the seed adding port.

[0008] Further, the seed selection mechanism includes a blower, which is fixedly installed on one side wall of the protective cover, and the air inlet of the blower is located outside the protective cover, and the air outlet of the blower is located inside the protective cover. A slag discharge channel is fixedly installed on the side wall of the protective cover opposite to the blower, one end of the slag discharge channel is located inside the protective cover and faces the air outlet of the blower, and the other end of the slag discharge channel is located outside the protective cover. The gap between the port of the slag discharge channel inside the protective cover and the air inlet of the blower is opposite to the middle position of the lower end of the stirring barrel.

[0009] Further, the projection of the seed adding port on the protective cover in the vertical direction falls on the slag discharge channel, and the part of the bottom plate inside the protective cover is in an inclined state, and the height of the end of the part of the bottom plate close to the air outlet of the blower is lower than the height of the other end.

[0010] Further, the top of the protective cover is provided with an observation window on one side of the seed adding port, and a transparent plastic baffle is installed in the observation window.

[0011] Further, a liquid medicine conveying assembly is provided on the side of the main frame body opposite to the discharge chute, and the liquid medicine required for seed dressing can be automatically conveyed into the stirring barrel through the liquid medicine conveying assembly.

[0012] Further, the medicine liquid conveying assembly comprises a medicine tank rack fixedly installed on the main frame body, a storage medicine tank is placed on the medicine tank rack, a top cover is detachably installed on the top of the storage medicine tank, a supporting partition plate is arranged above the top cover in a spaced manner, the supporting partition plate is fixedly connected with the main frame body, a peristaltic pump is fixedly installed on the supporting partition plate, a conveying hose is arranged in the peristaltic pump, one end of the conveying hose penetrates through the center of the top cover and is inserted into the storage medicine tank, the other end of the conveying hose is connected with a spray pipe, the spray pipe penetrates through the side wall of the protection cover on the same side of the air blower and extends to above the upper end port of the stirring barrel, and the spray pipe is fixedly connected with the side wall of the protection cover.

[0013] Further, four movable wheels with self-locking function are installed at the four corners of the bottom of the main frame body.

[0014] Further, a placing rack is arranged below the lower end port of the discharging chute, the placing rack is installed on the main frame body through bolts and nuts, a receiving hopper is placed on the placing rack, and a corrugated plastic pipe is installed at the lower end port of the receiving hopper.

[0015] In summary, the present application has at least one of the following beneficial technical effects:

[0016] The protection cover is arranged above the upper end port of the stirring barrel, and the seed selection mechanism is installed in the protection cover. Since the lower end port of the protection cover covers the top of the stirring barrel, the farmer can only pour the legume seeds into the protection cover from the seed adding port on the top of the protection cover. Therefore, the legume seeds pass through the seed selection mechanism before entering the stirring barrel. The seed selection mechanism can automatically remove the abnormal seeds and some dry branches and leaves impurities in the legume seeds when the legume seeds pass through. Compared with the seed mixing machine in the prior art which can only simply stir, the farmer can save the trouble of separately selecting the legume seeds by using a screening device or manually, and then transporting the selected seeds to the stirring machine. Therefore, the seed mixing efficiency is improved, the process of the farmer's seed mixing operation is simplified, and the labor intensity of the farmer in the seed mixing process is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0019] Figure 2 is a structure schematic diagram after part of the protective cover of the application is removed;

[0020] Figure 3 is a structure schematic diagram after part of the stirring barrel is cut open on the basis of Figure 2 ;

[0021] Figure 4 is a state schematic diagram of the seed mixing device of the application when discharging on the agricultural tarpaulin.

[0022] The drawings show that the application is a seed mixing device for planting beans, which comprises a main frame body 1, a stirring barrel 2 fixedly installed at the middle position of the main frame body 1, a spiral stirring blade 3 installed in the stirring barrel 2, a lower end of a main shaft of the spiral stirring blade 3 penetrating through a bottom plate of the stirring barrel 2 and connected with an output shaft of a stirring motor 4, a shell of the stirring motor 4 fixedly connected with the main frame body 1 through a motor support 5, and a discharge chute 6 installed at one side of the bottom of the stirring barrel 2. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the technical scheme in the embodiments of the application is clearly and completely described below. Obviously, the described embodiments are some embodiments of the application, but not all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the application.

[0024] As shown in Figures 1-3 , the application discloses a seed mixing device for planting beans, which comprises a main frame body 1, a stirring barrel 2 fixedly installed at the middle position of the main frame body 1, a spiral stirring blade 3 installed in the stirring barrel 2, a lower end of a main shaft of the spiral stirring blade 3 penetrating through a bottom plate of the stirring barrel 2 and connected with an output shaft of a stirring motor 4, a shell of the stirring motor 4 fixedly connected with the main frame body 1 through a motor support 5, and a discharge chute 6 installed at one side of the bottom of the stirring barrel 2.

[0025] A protective cover 7 is fixedly installed at the top of the main frame body 1, a seed adding port 8 is arranged at the top of the protective cover 7, a lower end of the protective cover 7 is open, the lower end of the protective cover 7 is open and covers the top of the stirring barrel 2, a seed selection mechanism 9 is arranged in the protective cover 7, and the seed selection mechanism 9 can screen the seeds falling into the stirring barrel 2 from the seed adding port 8.

[0026] In the above embodiment, the protective cover 7 of the present application is located above the upper port of the stirring barrel 2 on the main frame body 1, and a seed selection mechanism 9 is arranged inside the protective cover 7. When the farmer pours the beans seeds that need to be mixed before planting from the seed adding port 8 specially arranged on the top of the protective cover 7, the seeds will flow to the stirring barrel 2 under the action of gravity and will inevitably pass through the seed selection mechanism 9. The seed selection mechanism 9 of the present application has the effect of automatically screening the seeds passing through it, so as to remove the problem seeds such as dry, damaged beans seeds and impurities such as dry branches and leaves. This effect is the same as the seed selection effect in the conventional seed mixing process. Since the lower end of the protective cover 7 is open and covers the top of the stirring barrel 2, the qualified seeds screened by the seed selection mechanism 9 will automatically fall into the stirring barrel 2 under the action of gravity. Compared with the stirring equipment in the prior art that can only simply mix seeds, the farmer can save the trouble of separately using a screening device or manually selecting beans seeds, which not only improves the seed mixing efficiency and simplifies the operation process of the farmer, but also effectively reduces the labor intensity of the farmer during the seed mixing process.

[0027] After the qualified seeds screened by the seed selection mechanism 9 fall into the stirring barrel 2, the helical stirring blades 3 in the stirring barrel 2 will repeatedly roll up and down in the stirring barrel 2 under the drive of the stirring motor 4 with the beans seeds. After the seed coating agent solution or other solution prepared in advance is poured into the stirring barrel 2, the seed coating agent solution will uniformly wrap the surface of the beans seeds with the continuous rolling of the beans seeds in the stirring barrel 2 and the friction contact between the beans seeds, thereby completing the seed mixing of the beans seeds. The main object of the present application is currently applied to beans seeds, but it is not excluded that it can also be well applied to other seeds that need to be mixed (such as corn seeds, wheat seeds, etc.), so these technical solutions that only change the use object without changing the structure of the equipment of the present application are also within the protection scope of the present application.

[0028] Further, as shown in Figure 2 and Figure 3 , the seed selection mechanism 9 includes an air blower 91, the air blower 91 is fixedly installed on one side wall of the protective cover 7, the air inlet of the air blower 91 is located outside the protective cover 7, and the air outlet of the air blower 91 is located inside the protective cover 7; a slag discharge channel 92 is fixedly installed on the side wall of the protective cover 7 opposite to the air blower 91, one end of the slag discharge channel 92 is located inside the protective cover 7 and faces the air outlet of the air blower 91, and the other end of the slag discharge channel 92 is located outside the protective cover 7; the gap between the end of the slag discharge channel 92 located inside the protective cover 7 and the air inlet of the air blower 91 is opposite to the middle position of the upper port of the stirring barrel 2 below.

[0029] In the above embodiment, after the farmer pours the bean seeds into the seed adding port 8 on the protective cover 7, the seeds automatically fall under the action of gravity. When the seeds pass through the air outlet of the air blower 91, the wind blown by the air blower 91 blows the unqualified seeds and dry branches and leaves in the bean seeds to the residue discharge channel 92, and then to the outside of the protective cover 7 along the residue discharge channel 92. The qualified seeds with large mass have enough gravity to overcome the wind force blown by the air blower 91, so the qualified bean seeds continue to fall to the lower stirring barrel 2. In this way, the effect that only the qualified seeds automatically enter the stirring barrel 2 after the farmer pours the bean seeds into the seed adding port 8 of the seed dressing device of the present application can be achieved.

[0030] Further, as shown in Figure 2 and Figure 3 , the projection of the seed adding port 8 on the protective cover 7 in the vertical direction falls on the residue discharge channel 92. The portion of the bottom plate inside the protective cover 7 is in an inclined state, and the height of the end of the portion of the bottom plate close to the air outlet of the air blower 91 is lower than the height of the other end.

[0031] In the above embodiment, the projection of the seed adding port 8 of the present application in the vertical direction falls on the residue discharge channel 92. In this way, the seeds poured by the farmer from the seed adding port 8 first fall on the residue discharge channel 92, and then roll a certain distance along the inclined portion of the residue discharge channel 92 in the protective cover 7 before flowing to the stirring barrel 2. As can be seen, the contact time between the seeds and the wind blown by the air blower 91 increases when the seeds flow into the stirring barrel 2. In this way, the screening effect of the wind blown by the air blower 91 on the bean seeds can be effectively improved.

[0032] Further, as shown in Figure 3 , an observation window 10 is arranged on one side of the seed adding port 8 at the top of the protective cover 7, and a transparent plastic baffle 11 is installed in the observation window 10.

[0033] In the above embodiment, the transparent plastic baffle 11 is installed in the observation window 10 arranged at the top of the protective cover 7 of the present application. The transparent plastic baffle 11 is preferably directed to the gap between the air blower 91 and the residue discharge channel 92. In this way, the airtightness of the protective cover 7 can be ensured, and the need of the farmer to observe the effect of the seed coating agent on the surface of the seeds in the stirring barrel 2 in real time during the seed dressing process can be met.

[0034] Further, as shown in Figure 2 , a liquid medicine conveying assembly 12 is arranged on the opposite side of the main frame body 1 relative to the discharge chute 6. The liquid medicine conveying assembly 12 can automatically convey the liquid medicine required for seed dressing into the stirring barrel 2.

[0035] In the above embodiment, the existing seed dressing equipment usually uses a container filled with liquid medicine held by a farmer to pour into the equipment during the seed dressing process. This way, the amount of liquid medicine is not only uneven, but also increases the fatigue of the farmer's hands. Therefore, the liquid medicine delivery assembly 12 is added to the side opposite the discharge chute 6 of the main frame body 1 to replace the manual addition of liquid medicine by the farmer.

[0036] Further, as Figure 2 shown, the liquid medicine delivery assembly 12 includes a medicine tank rack 121 fixedly installed on the main frame body 1, a medicine storage tank 122 is placed on the medicine tank rack 121, a top cover 123 is detachably installed on the top of the medicine storage tank 122, a support partition plate 124 is spaced apart above the top cover 123, the support partition plate 124 is fixedly connected with the main frame body 1, a peristaltic pump 125 is fixedly installed on the support partition plate 124, a delivery hose 126 is penetratingly arranged inside the peristaltic pump 125, one end of the delivery hose 126 penetrates through the center of the top cover 123 and is inserted into the inside of the medicine storage tank 122, the other end of the delivery hose 126 is connected with a spray pipe 127, the spray pipe 127 extends to above the upper port of the stirring barrel 2 along the horizontal direction after penetrating through the side wall of the protective cover 7 on the same side of the air blower 91, and the spray pipe 127 is fixedly connected with the side wall of the protective cover 7 through which it penetrates.

[0037] In the above embodiment, the medicine tank rack 121 arranged on the main frame body 1 is mainly used for conveniently placing the storage medicine tank 122. The top of the storage medicine tank 122 is detachably provided with a top cover 123. Thus, when it is needed to add the prepared liquid medicine into the storage medicine tank 122, the farmer can open the top cover 123 to expose the upper port of the storage medicine tank 122. During the seed mixing process, the farmer can cover the top cover 123 on the storage medicine tank 122 to seal the upper port. Thus, the diffusion effect of the liquid medicine in the storage medicine tank 122 in the surrounding air can be reduced, and the comfort of the farmer during the seed mixing process can be improved. The peristaltic pump 125 is fixedly arranged on the support partition plate 124 arranged above the medicine tank rack 121. The peristaltic pump 125 is internally provided with a conveying hose 126. The two ends of the conveying hose 126 are respectively connected with the storage medicine tank 122 and the spraying pipe 127 in the above-mentioned manner. After the peristaltic pump 125 is started, the conveying hose 126 can be periodically squeezed and released by the internal rollers and pressing blocks, so as to drive the liquid medicine in the storage medicine tank 122 to flow along the conveying hose 126 to the spraying pipe 127. The end of the spraying pipe 127 far away from the conveying hose 126 is located above the upper port of the stirring barrel 2. The liquid medicine sprayed from the spraying pipe 127 can smoothly drop into the stirring barrel 2. Compared with the manual adding mode of the farmer, the peristaltic pump 125 can control the flow error of the liquid medicine flowing into the stirring barrel 2 within ±1% per unit time. Moreover, compared with other pump bodies, the liquid medicine conveyed by the peristaltic pump 125 only contacts with the conveying hose 126, and is completely isolated from the pump body. Thus, when the liquid medicine containing certain solid particles is conveyed, the risk of blockage in the pump body can be effectively avoided. In addition, the peristaltic pump 125 has no mechanical seal, valve and other vulnerable parts. During the subsequent maintenance, only the conveying hose 126 needs to be replaced regularly. Thus, the peristaltic pump 125 used as the core equipment for conveying the liquid medicine can effectively reduce the subsequent maintenance cost.

[0038] Further, as shown in Figure 1 and Figure 4 , the four corners of the bottom of the main frame body 1 are respectively provided with a mobile wheel 13 with a self-locking function.

[0039] In the above embodiment, the legume seeds need to be dried after the seed dressing operation in the stirring barrel 2. If the seeds are not dried, mold will grow due to residual moisture, increasing the risk of mold. If the seeds are directly spread under direct sunlight or baked with high-temperature air, the curing process of the pesticide will be damaged, resulting in the pesticide film not being completely attached and falling off, reducing the disease and insect prevention effect. The seed dressing equipment in the prior art is not convenient to move. After the seed dressing, the farmer needs to spread the agricultural tarpaulin 17 in a cool and ventilated place, pack the dressed legume seeds with a bag, and then spread them on the agricultural tarpaulin 17. Some farmers will directly stack the dressed seeds in a breathable bag to save time, but this method is obviously less effective than the previous method. During the seed dressing operation, a cool and ventilated place is usually selected to avoid direct sunlight, prevent the pesticide from evaporating too quickly, and prevent the seeds from being damaged by heat. Therefore, after the seed dressing operation, the agricultural tarpaulin 17 can be directly spread in the seed dressing place. Since the main frame body 1 has four moving wheels 13 at the bottom, the farmer can push the entire equipment on the agricultural tarpaulin 17 and move freely. During the movement, the farmer opens the gate plate on the discharge chute 6, which saves the farmer the trouble of packing the dressed legume seeds with a bag and then moving the packed legume seeds to the agricultural tarpaulin 17.

[0040] Further, as shown in Figure 1 and Figure 4 , a placing rack 14 is arranged below the lower end of the discharge chute 6. The placing rack 14 is installed on the main frame body 1 by bolts and nuts. A receiving hopper 15 is placed on the placing rack 14. A corrugated plastic pipe 16 is installed at the lower end of the receiving hopper 15.

[0041] In the above embodiment, the unloading chute 6 and the ground have a certain height, if the gate on the unloading chute 6 is opened directly for unloading, the beans will be scattered everywhere after falling from a high place on the agricultural tarpaulin 17, and the beans themselves are round in shape, so the actual scattering range will be larger, which is not convenient for farmers to arrange and collect the unloaded seeds. Therefore, the application places a receiving hopper 15 in the placing rack 14 below the lower end of the unloading chute 6, and through the receiving hopper 15, the beans flowing from the unloading chute 6 can be guided into the corrugated plastic pipe 16, and through the constraint and guidance of the corrugated plastic pipe 16, the risk of the beans being scattered in a large range on the agricultural tarpaulin 17 after flowing out of the corrugated plastic pipe 16 can be greatly reduced. The corrugated plastic pipe 16 of the application has a plurality of corrugated folds on the pipe wall, so that the farmer can adjust the length of the corrugated plastic pipe 16 within a certain range according to the need. The placing rack 14 and the main frame body 1 of the application are connected by bolts and nuts, when the farmer wants to directly pack the mixed beans with a bag, the bolts and nuts between the placing rack 14 and the main frame body 1 are removed, and the large space below the unloading chute 6 is restored, so that the flexibility of the application in use is improved.

[0042] The implementation principle of the embodiment is that when the farmer needs to treat the legume seeds, first, the air blower 91 is started, and then the legume seeds are uniformly poured from the seed adding port 8 at the top of the protective cover 7. The normal seeds will first fall on the residue discharge channel 92 in the protective cover 7 under the action of gravity, and then roll along the residue discharge channel 92 for a distance and fall from the gap between the residue discharge channel 92 and the air outlet of the air blower 91. In the above process, the abnormal seeds and some dry branches and leaves, whose weight is obviously lower than that of the normal seeds, will be sent to the outside of the protective cover 7 along the residue discharge channel 92 by the wind blown by the air blower 91, and then specially cleaned by the farmer. As the qualified seeds continuously fall into the stirring barrel 2, when the rated capacity of the stirring barrel 2 is reached, the farmer can start the stirring motor 4 to drive the spiral stirring blade 3 in the stirring barrel 2 to roll up and down with the legume seeds, and then start the peristaltic pump 125 to uniformly deliver the liquid medicine in the medicine storage tank 122 into the stirring barrel 2. Under the continuous rolling and rubbing action of the legume seeds in the stirring barrel 2, the liquid medicine will gradually and uniformly wrap the outside of the legume seeds. The farmer can observe the seed treatment condition of the legume seeds in real time through the observation window 10 on the protective cover 7. After the wrapping state of the liquid medicine is ideal, the farmer can push the entire device on the pre-laid agricultural tarpaulin 17 by using the moving wheels 13 on the main frame body 1, and open the gate plate on the discharge chute 6 in the moving process. In this way, the treated legume seeds will be poured on the agricultural tarpaulin 17 along the moving track of the device, and then the farmer can further rake the legume seeds on the agricultural tarpaulin 17 with a wooden rake to make the seeds better for shade drying. Compared with the prior art, the application not only improves the seed treatment efficiency and simplifies the operation process of the farmer, but also effectively reduces the labor intensity of the farmer in the seed treatment process.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions described in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A seed dressing device for legume planting, comprising a main frame (1), characterized in that: The middle position of the main frame body (1) is fixedly installed with a stirring barrel (2), a spiral stirring blade (3) is installed in the stirring barrel (2), the lower end of the main shaft of the spiral stirring blade (3) is connected with the output shaft of a stirring motor (4) after penetrating through the bottom plate of the stirring barrel (2), the shell of the stirring motor (4) is fixedly connected with the main frame body (1) through a motor support (5), and one side of the bottom of the stirring barrel (2) is installed with a discharge chute (6). A protective cover (7) is fixedly installed on the top of the main frame body (1), the top of the protective cover (7) is provided with a seed adding port (8), the lower end of the protective cover (7) is open, the lower end of the protective cover (7) covers the top of the stirring barrel (2), and a seed selection mechanism (9) is arranged in the protective cover (7), and the seed selection mechanism (9) can screen the seeds falling into the stirring barrel (2) from the seed adding port (8).

2. The seed dressing device for legume cultivation according to claim 1, characterized by: The seed selection mechanism (9) comprises a blower (91), the blower (91) is fixedly installed on one side wall of the protective cover (7), the air inlet of the blower (91) is located outside the protective cover (7), and the air outlet of the blower (91) is located inside the protective cover (7); a residue discharge channel (92) is fixedly installed on the side wall of the protective cover (7) opposite to the blower (91), one port of the residue discharge channel (92) is located inside the protective cover (7) and faces the air outlet of the blower (91), and the other port of the residue discharge channel (92) is located outside the protective cover (7); the port of the residue discharge channel (92) located inside the protective cover (7) has a gap between the air inlet of the blower (91), and the gap faces the middle position of the upper port of the stirring barrel (2) below.

3. The seed dressing device for legume cultivation according to claim 2, characterized by: The projection of the seed adding port (8) on the protective cover (7) in the vertical direction falls on the residue discharge channel (92), and the part of the bottom plate of the residue discharge channel (92) located inside the protective cover (7) is in an inclined state, and the height of the end of the part of the bottom plate close to the air outlet of the blower (91) is lower than the height of the other end.

4. The seed dressing device for legume cultivation according to any one of claims 1 to 3, characterized in that: An observation window (10) is arranged on one side of the top of the protective cover (7) and located at the seed adding port (8), and a transparent plastic baffle (11) is installed in the observation window (10).

5. The seed dressing device for legume cultivation according to claim 2, characterized by: A liquid medicine conveying assembly (12) is arranged on the side of the main frame body (1) opposite to the discharge chute (6), and the liquid medicine required for seed dressing can be automatically conveyed into the stirring barrel (2) through the liquid medicine conveying assembly (12).

6. The seed dressing device for legume cultivation according to claim 5, characterized by: The medicine liquid conveying assembly (12) comprises a medicine tank rack (121) fixedly installed on the main frame body (1), a storage medicine tank (122) is placed on the medicine tank rack (121), a top cover (123) is detachably installed on the top of the storage medicine tank (122), a supporting partition plate (124) is arranged above the top cover (123) in a spaced manner, the supporting partition plate (124) is fixedly connected with the main frame body (1), a peristaltic pump (125) is fixedly installed on the supporting partition plate (124), a conveying hose (126) is arranged through the peristaltic pump (125), one end of the conveying hose (126) is inserted into the storage medicine tank (122) through the center of the top cover (123), the other end of the conveying hose (126) is connected with a spray pipe (127), the spray pipe (127) extends to above the upper end port of the stirring barrel (2) through the side wall of the protection cover (7) on the same side of the air blower (91) in the horizontal direction, and the spray pipe (127) is fixedly connected with the side wall of the protection cover (7) through which the spray pipe (127) penetrates.

7. The seed dressing device for legume cultivation according to claim 1, characterized by: A movable wheel (13) with a self-locking function is installed at each corner of the bottom of the main frame body (1).

8. The seed dressing device for legume cultivation according to claim 7, characterized by: A placing rack (14) is arranged below the lower end port of the discharging chute (6), the placing rack (14) is installed on the main frame body (1) through bolts and nuts, a receiving hopper (15) is placed on the placing rack (14), and a corrugated plastic pipe (16) is installed at the lower end port of the receiving hopper (15).

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