Novel seed coating device
By optimizing the structure and position of the spray pipe of the seed coating device and combining it with the spiral push of the feeding auger, the problems of low efficiency and uneven liquid distribution in the intermittent operation of the seed coating equipment were solved, achieving a continuous and stable seed coating effect.
Patent Information
- Application Number
- CN202520449865.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing seed coating equipment suffers from problems such as low efficiency due to intermittent operation, waste and blockage of the spraying method, and uneven distribution of the pesticide solution and materials, which affect the survival rate and efficacy of seeds after sowing.
The structure and position of the spray pipe are optimized so that it moves in the same direction as the material in the feeding pipe. A large-diameter liquid discharge method is adopted, combined with the spiral push of the feeding auger, so as to achieve uniform mixing of the drug and the material in a limited space and avoid blockage.
It achieves uninterrupted, stable, and efficient seed coating, with precise ratio of pesticide to material, preventing pesticide evaporation, ensuring uniform coating of each seed, and improving seed survival rate and efficacy.
Smart Images

Figure CN223844333U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a seed coating equipment technical field especially relates to a novel seed coating device. BACKGROUND
[0002] Seed coating technology is a plant protection technology, which has the characteristics of comprehensive prevention, low toxicity, high efficiency, and saving seeds and drugs.
[0003] The utility model patent with publication number CN222566305U discloses a drum type coating structure, which uses a spray head to spray medicine to mix seeds, but it is intermittent operation, that is, the material needs to be poured out and then put back into the material to be coated after mixing, and the operation efficiency is obviously limited.
[0004] The utility model patent with publication number CN222540689U discloses a liquid medicine coating device, which uses multiple spray heads to spray and coat the material, and the spray head sprays the material on the rolling way, that is, the liquid medicine will be attached to the rolling way and other components in large quantities, which will greatly increase the amount of medicine used. In addition, the rolling way needs to be taken out and cleaned irregularly, and the operation efficiency is limited.
[0005] The utility model patent with publication number CN222424698U discloses a corn coating device, which uses a liquid spraying pipe to spray and coat the material, but it rotates with the stirring tank, and the material will contact the liquid spraying pipe when it is turned over, which will clog the nozzle after a long time. Moreover, it also adopts intermittent operation mode and cannot realize continuous non-stop coating operation.
[0006] In addition, the existing continuous coating equipment also adopts the spraying mode to coat the material, such as rotary spraying and falling spraying, but no matter which spraying mode is adopted, the material or impurities will clog the nozzle after a long time of operation, especially for atomizing spraying, which is more serious. Once clogging occurs, the injection amount of liquid medicine will be affected, while the flow rate of the material remains unchanged, which will cause uneven coating, and the survival rate of seeds after sowing is not high. Excessive coating will cause drug damage, and high water content will also cause seeds to heat and mature early. Insufficient coating will not produce drug effect. Therefore, with the increase of operation time, the coating effect will also decrease, and the coating quality is unstable. Therefore, the equipment needs to be stopped for cleaning and maintenance after a period of operation, which is very inconvenient.
[0007] Therefore, it is necessary to design a truly uninterrupted coating device to optimize the liquid medicine coating mode and ensure the quality and efficiency of coating. UTILITY MODEL CONTENTS
[0008] The utility model provides a novel seed coating device to solve the problems in the above background art. The structure and position of the medicine spraying pipe are optimized, the stable proportioning of the medicine amount and the material is effectively ensured while uninterrupted operation, and the medicine spraying pipe does not block any more, and the stable, efficient and continuous coating operation is realized in a true sense.
[0009] To solve the above technical problems, the utility model adopts the technical scheme of:
[0010] A novel seed coating device, which comprises a material hopper for containing material, a feeding pipe in communication with the bottom end of the material hopper, a feeding component arranged in the feeding pipe, and a driving component for driving the feeding component to push the material.
[0011] Further comprising:
[0012] A medicine spraying pipe arranged in the feeding pipe and having a medicine spraying end directed to the direction in which the material is pushed.
[0013] The medicine spraying end is located at one side of the communication position between the material hopper and the feeding pipe.
[0014] The medicine inlet end of the medicine spraying pipe is in communication with the medicine pump.
[0015] As a further improvement of the utility model, the height of one end of the feeding pipe in the conveying direction is not higher than the height of the other end.
[0016] As a further improvement of the utility model, the medicine spraying pipe and the feeding component are coaxially corresponding to each other.
[0017] As a further improvement of the utility model, the medicine inlet end of the medicine spraying pipe penetrates the driving component.
[0018] As a further improvement of the utility model, the feeding component is a feeding auger.
[0019] As a further improvement of the utility model, a maintenance opening is arranged on the feeding pipe close to the output end direction thereof.
[0020] As a further improvement of the utility model, a grid net is arranged in the material hopper close to the bottom end thereof.
[0021] As a further improvement of the utility model, the output end of the feeding pipe is in communication with a vertical conveying pipe.
[0022] As a further improvement of the utility model, the material hopper is fixedly connected to a movable frame.
[0023] This invention optimizes the position, structure, and connection of the spraying pipe, significantly improving upon the spraying method in existing coating equipment. It eliminates clogging and is suitable for various crop seeds. Furthermore, the injected pesticide and seed throughput are stable and controllable, resulting in a more precise pesticide-to-seed ratio. Additionally, the mixing method within the feeding pipe ensures more uniform mixing of the pesticide and seeds within a limited space, minimizing contact with the outside environment and preventing rapid moisture evaporation, thus guaranteeing rapid coating of every seed. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural schematic of the present invention. Figure 1 ;
[0025] Figure 2 This is a three-dimensional structural schematic diagram of the present invention. Figure 2 ;
[0026] Figure 3 This is a three-dimensional sectional view illustrating the structure of this utility model. Figure 1 ;
[0027] Figure 4 This is a three-dimensional sectional view illustrating the structure of this utility model. Figure 2 ;
[0028] Figure 5 The right view is a schematic diagram of the structure of this utility model;
[0029] Figure 6 This is a top view illustrating the structure of this utility model;
[0030] Figure 7 This is a schematic diagram of the spray pipe in another embodiment of the present invention.
[0031] In the picture:
[0032] 100. Moving frame; 101. Hopper; 102. Medicine storage tank; 103. Medicine pump;
[0033] 200. Feeding pipe; 201. Drive unit; 202. Feeding unit; 203. Maintenance port; 204. Vertical conveying pipe;
[0034] 300. Sprayer tube. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the following is a summary description. Figure 1 To be continued Figure 7and the embodiments, the utility model is further explained in detail. But it should be understood that the specific embodiments described herein are merely used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.
[0036] Embodiment one
[0037] The purpose of this embodiment is to provide a new seed coating device, including material hopper 101 containing material, workers can add material according to the amount of material in the hopper 101 at any time, in order to continuous operation. Hopper 101 is fixedly connected on the moving frame 100, which is convenient for flexible movement on site.
[0038] The material can be directly connected into the feeding pipe 200 through the through hole at the bottom end of the hopper 101, the feeding pipe 200 is provided with a feeding component 202 (actually a feeding auger), and the feeding component 202 is driven by the driving component 201 to rotate spirally in the axial direction to push the material forward.
[0039] The material in the feeding pipe 200 is pushed by the auger, which can realize the quantitative conveying of the material, which is a common conveying mode. One side of the hopper 101 is provided with a medicine storage barrel 102 communicated with the medicine pump 103, and the medicine is pumped quantitatively by the medicine pump 103, and the conveying amount of the material is adjusted to have a proportional relationship, that is, the continuous operation can be realized.
[0040] In addition, the embodiment also has a medicine spraying pipe 300, the medicine inlet end of which is communicated with the medicine pump 103. The position, structure and connection relationship of the medicine spraying pipe 300 are the key points of improvement. It is arranged in the feeding pipe 200, not in the hopper as in the traditional way. The reason for adopting this structure is to realize the mixing of medicine and material in the limited space of the feeding pipe 200. Due to the limitation of limited space and the spiral feeding of the auger, the material can quickly roll in the narrow space and can be more fully and uniformly mixed with the medicine.
[0041] The traditional structure is to arrange a nozzle at the bottom of the hopper, and the material enters the feeding pipe after the medicine is sprayed downward by the nozzle. This way will make the medicine contact with the outside world too quickly, which will speed up the evaporation of the moisture of the medicine. Moreover, the material in the hopper is more, and the dust and impurities are easy to diffuse, which is easy to block the medicine nozzle.
[0042] In addition, the medicine spraying end of the medicine spraying pipe 300 is directed to the pushing direction of the material. That is, the medicine spraying direction is consistent with the advancing direction of the material, so that the material will not be adhered to the medicine spraying end after being contacted with the liquid medicine, and the material will not be reversely moved to block the medicine spraying end when being pushed. The position relationship can well inject the liquid medicine along the moving direction of the material, and the resistance at the medicine spraying end will be greatly reduced, and the blocking will not occur. The liquid medicine is preferably sprayed out at the medicine spraying end, and the diameter of the medicine spraying end is larger than that of the atomizing spraying. The larger diameter is not easy to be blocked, and even if the material enters, it can be pushed out under the pressure of the liquid medicine.
[0043] In addition, the medicine spraying end of the medicine spraying pipe 300 is directed to the pushing direction of the material. That is, the medicine spraying direction is consistent with the advancing direction of the material, so that the material will not be adhered to the medicine spraying end after being contacted with the liquid medicine, and the material will not be reversely moved to block the medicine spraying end when being pushed. The position relationship can well inject the liquid medicine along the moving direction of the material, and the resistance at the medicine spraying end will be greatly reduced, and the blocking will not occur. The liquid medicine is preferably sprayed out at the medicine spraying end, and the diameter of the medicine spraying end is larger than that of the atomizing spraying. The larger diameter is not easy to be blocked, and even if the material enters, it can be pushed out under the pressure of the liquid medicine. Figure 6 In addition, the medicine spraying end of the medicine spraying pipe 300 is directed to the pushing direction of the material. That is, the medicine spraying direction is consistent with the advancing direction of the material, so that the material will not be adhered to the medicine spraying end after being contacted with the liquid medicine, and the material will not be reversely moved to block the medicine spraying end when being pushed. The position relationship can well inject the liquid medicine along the moving direction of the material, and the resistance at the medicine spraying end will be greatly reduced, and the blocking will not occur. The liquid medicine is preferably sprayed out at the medicine spraying end, and the diameter of the medicine spraying end is larger than that of the atomizing spraying. The larger diameter is not easy to be blocked, and even if the material enters, it can be pushed out under the pressure of the liquid medicine.
[0044] The reason for being arranged at this position is the experience obtained in repeated experiments. Because the material is not completely downwardly moved at the communication position, the material will be upwardly moved by a certain frequency under the influence of the auger screw pushing mode while being laterally pushed. That is, when the outer ring of the auger runs at this position, the material will be upwardly moved by a certain amplitude under the influence of the screw pushing, and the material will be pressed by the outer ring of the auger. Because of the upward movement, part of the material will be in contact with the medicine spraying end of the medicine spraying pipe 300, and the moving directions of the two are no longer consistent, and the blocking will occur after a long time of running.
[0045] The above structure optimizes the position of the medicine spraying pipe 300, so that the medicine spraying pipe 300 extends to a position deeper in the axial direction of the feeding pipe 200. In this position, the material is pushed under the premise of lateral pushing even if the material is screw-rolled, the moving direction of the liquid medicine is consistent with that of the material, and the anti-blocking effect is very remarkable.
[0046] In the embodiment, the height of one end of the feeding pipe 200 is not higher than that of the other end, and the material and the liquid medicine can move in the same direction in the optimal state. If the height of one end is higher than that of the other end, the material may be reversely moved due to resistance, or the moving speed of the material may be too slow due to too much resistance, and a certain blocking condition may occur. Of course, it also depends on the specific height difference.
[0047] The medicine spraying pipe 300 is preferably coaxial with the feeding component 202, and does not interfere with the pushing of the material as much as possible.
[0048] In order to be more simplified in structure and stable in operation, the medicine inlet end of the medicine spraying pipe 300 penetrates the driving component 201, and the middle shaft of the transmission shaft is shown in the drawing. In this way, the operation of the auger is not hindered, and the effect of stable connection is achieved, and the medicine spraying pipe 300 is not easy to be deviated by extrusion of the material. The medicine inlet end of the medicine spraying pipe 300 is communicated with the medicine pump through a hose or a hard pipe.
[0049] As a further improvement of the utility model, the feeding pipe 200 is provided with a maintenance opening 203 close to the output end direction, and workers can quickly overhaul and maintain through this structure.
[0050] In order to prevent sundries from entering the feeding pipe, the hopper 101 is provided with a grid net close to the bottom end, and part of the woven bag scraps and the like are screened out.
[0051] In order to further improve the coating effect, the output end of the feeding pipe 200 is communicated with the vertical conveying pipe 204, the movement direction of the material is changed, and the mixture is more uniform. Moreover, after being lifted upward, it is convenient to be connected with other equipment, and is beneficial to uninterrupted operation of multiple processes.
[0052] The utility model mainly optimizes the position, structure and connection relationship of the medicine spraying pipe, greatly improves the medicine spraying mode in the existing coating equipment, does not produce the blockage condition, and is suitable for various crop seeds. Moreover, the medicine injection amount and the seed passing amount are stable and controllable, and the proportion of the medicine and the seeds is more accurate.
[0053] In addition, the mixing mode in the feeding pipe is adopted, the medicine and the seeds are more uniformly mixed in the limited space, the medicine liquid and the seeds in the tank can be quickly mixed and stirred, are more difficult to contact with the outside world, water evaporation is prevented, and it is guaranteed that each seed can be quickly coated.
[0054] Embodiment two
[0055] The purpose of the embodiment is to provide another structure of the medicine spraying pipe 300, and the same parts of the embodiment and embodiment one will not be repeated.
[0056] In addition to the structure shown in the drawings Figure 1 In addition to the structure shown in the drawings Figure 6 , the medicine spraying pipe can be led out from the other end of the feeding pipe 200. That is, the medicine spraying pipe 300 is led out from the other end of the feeding pipe 200 away from the driving component in a reverse bending mode (referring to the drawings Figure 7 ). In this way, the driving component does not need to be greatly changed, and only a small amount of modification is needed at the other end of the feeding pipe. Of course, in order to prevent the auger from winding the medicine spraying pipe, a certain spacing is reserved at the end of the auger so that the medicine spraying pipe can be led out from the feeding pipe.
[0057] Both ways can realize that the medicine spraying direction of the medicine spraying pipe 300 is consistent with the pushing direction of the material, the medicine liquid flows along the moving direction of the material, and the material cannot block the medicine spraying pipe. Moreover, instead of the common spraying mode, the medicine liquid flows out in a large-diameter mode, and the injection amount is truly quantitatively controllable. In combination with the quantitative feeding of the material, the coating quality and efficiency are truly and stably controllable.
[0058] Although the utility model has been described above with reference to the embodiments, various improvements can be made and the components therein can be replaced with equivalents without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each feature in the disclosed embodiments of the utility model can be combined with each other in any way, and the combinations are not exhaustively described in the specification only for the consideration of omitting the length and saving the resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A novel seed coating device, comprising a material hopper (101) for containing material, the bottom end of the material hopper (101) being in communication with a feeding pipe (200), the feeding pipe (200) being provided with a feeding component (202) therein, and the feeding component (202) being driven by a driving component (201) to push the material; one side of the material hopper (101) being provided with a medicine storage barrel (102) in communication with a medicine pump (103); characterized in that: further comprising: a medicine spraying pipe (300) being provided in the feeding pipe (200) and having a medicine spraying end facing the direction in which the material is pushed; the medicine spraying end being located at one side of the communication position between the material hopper (101) and the feeding pipe (200); the medicine inlet end being in communication with the medicine pump (103).
2. The seed coating apparatus of claim 1, wherein: The height of one end of the feeding pipe (200) in the conveying direction is not higher than the height of the other end.
3. A seed coating apparatus according to claim 1 or 2, characterised in that: The medicine spraying pipe (300) and the feeding component (202) are coaxial with each other.
4. The seed coating apparatus of claim 3, wherein: The medicine inlet end of the medicine spraying pipe (300) penetrates the driving component (201).
5. The seed coating apparatus of claim 1, wherein: The feeding component (202) is a feeding auger.
6. The seed coating apparatus of claim 1, wherein: The feeding pipe (200) is provided with a maintenance opening (203) near the output end thereof.
7. The seed coating apparatus of claim 1, wherein: The material hopper (101) is provided with a grid net near the bottom end thereof.
8. The seed coating apparatus of claim 1, wherein: The output end of the feeding pipe (200) is in communication with a vertical conveying pipe (204).
9. The seed coating apparatus of claim 1, wherein: The material hopper (101) is fixed to a moving frame (100).
Citation Information
Patent Citations
Plant fixing device for vegetable transplanting
CN222424698U
Liquid medicine coating device for biological medicine fertilizer production
CN222540689U
Roller structure of efficient coating machine
CN222566305U