A seed sowing device for a plug tray
By designing a mechanism for simultaneous hole expansion and sowing and uniform soil covering, the problem of inconsistent hole expansion and sowing in seedling tray sowing equipment was solved, achieving efficient sowing and uniform soil covering in seedling trays, and improving the uniformity and survival rate of seedlings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIUYANG BRANCH OF CHANGSHA COMPANY OF HUNAN TOBACCO
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-26
AI Technical Summary
Existing seedling tray sowing equipment suffers from poor hole shape consistency and high soil spillage rate during the hole enlargement and sowing process, which affects the uniformity of seedling cultivation and survival rate.
A seedling tray sowing device was designed, which includes a belt conveyor, a uniform soil covering mechanism, and a hole-expanding sowing dual-function mechanism. The device uses a limiting and fixing component and a synchronous hole-expanding sowing component to achieve synchronous hole expansion and sowing. Combined with a vibrating motor and a screen, it achieves uniform soil covering, ensuring that the soil does not spill out and the soil covering thickness is uniform.
It improved the uniformity and survival rate of seedlings raised in seedling trays, ensured the quality of hole expansion and the uniformity of soil covering, and enhanced the overall quality of seedling raising in seedling trays.
Smart Images
Figure CN224402350U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sowing equipment technology, specifically to a seedling tray sowing device. Background Technology
[0002] Seedling tray sowing equipment is the core equipment of modern agricultural seedling cultivation. It is used to achieve precise sowing of seeds in seedling cultivation. This process directly affects the uniformity and survival rate of seedlings and is an important part of seedling tray seedling cultivation.
[0003] Current seedling tray sowing equipment mainly consists of three stages: hole expansion, sowing, and soil covering. Existing technology primarily uses a roller structure with conical blocks on its surface for hole expansion. This method not only results in poor hole expansion efficiency and inconsistent hole shapes, but also spills soil during the process, affecting both transportation and sowing effectiveness. After sowing, soil covering is necessary to improve seedling survival rates. Current technology mainly uses an auger structure for hole expansion, but this method easily spills soil outside the seedling tray. Furthermore, as the auger rotates, the soil is thrown to both sides by centrifugal force, resulting in a thicker soil covering at the edges of the tray compared to the center. This can lead to inconsistent seed coverage depth, affecting seedling uniformity and the overall quality of seedling cultivation.
[0004] Based on this, the present invention designs a seedling tray sowing device to solve the above problems. Utility Model Content
[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a seedling tray sowing device.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A seedling tray sowing device includes a belt conveyor, and also includes a uniform soil covering mechanism and a hole-expanding sowing dual-function mechanism. The uniform soil covering mechanism and the hole-expanding sowing dual-function mechanism are located above the belt conveyor, and the uniform soil covering mechanism is located in front of the hole-expanding sowing dual-function mechanism. The hole-expanding sowing dual-function mechanism is used to expand the holes in the seedling tray and sow seeds, and the uniform soil covering mechanism is used to uniformly cover the seedling tray after sowing. The hole-expanding sowing dual-function mechanism includes a limiting and fixing component and a synchronous hole-expanding sowing component. The limiting and fixing component is connected to the synchronous hole-expanding sowing component. The limiting and fixing component and the synchronous hole-expanding sowing component can cooperate to realize the hole-expanding and sowing dual functions simultaneously with one structure.
[0008] Furthermore, the limiting and fixing component includes a fixed bracket, seedling pipes and a drive component. The lower end of the fixed bracket is fixedly connected to the ground. The outer walls of multiple sets of seedling pipes are fixedly connected to the fixed bracket. The seedling pipes are used to transfer the seedlings that need to be sown into the seedling tray to the synchronous hole-expanding sowing component. Two sets of drive components are respectively connected to the fixed bracket. The drive components are used to drive the synchronous hole-expanding sowing component to move to realize the hole-expanding sowing function.
[0009] Furthermore, the drive assembly includes slide rails and push cylinders. The housings of the two sets of push cylinders are fixedly connected to both ends of the rear side wall of the fixed bracket. The output ends of the two sets of push cylinders are connected to the synchronous hole-expanding and seeding assembly. The two sets of slide rails are located inside the two sets of push cylinders. The two sets of slide rails are fixedly connected to the rear side wall of the fixed bracket and connected to the synchronous hole-expanding and seeding assembly.
[0010] Furthermore, the synchronous hole-expanding and seeding assembly includes a movable support, a movable fork assembly, and a hole-expanding and seeding assembly. The movable support is slidably connected to two sets of slide rails via a slider. The movable support is connected to multiple sets of movable fork assemblies, and the multiple sets of movable fork assemblies are connected to multiple sets of hole-expanding and seeding assemblies. The output ends of the two sets of push cylinders are fixedly connected to the movable support.
[0011] Furthermore, the number of sets of seedling pipes, movable fork components, and enlarged hole sowing components are the same and correspond one-to-one. The number of sets of the three is the number of seedling cells in a row of seedling trays.
[0012] Furthermore, the movable fork assembly includes movable columns, movable rods, rotating rods, and connecting rods. The middle of the two sets of movable rods is rotatably connected to the rotating rod, and the rotating rod is fixedly connected to the movable bracket. The two sets of movable columns are respectively fixedly connected to the upper ends of the two sets of movable rods. The fixed bracket is provided with a limiting groove that is slidably connected to the movable column. One end of the two sets of connecting rods is hinged to the lower end of the two sets of movable rods, and the other end of the two sets of connecting rods is connected to the hole-expanding seeding assembly.
[0013] Furthermore, the hole-expanding sowing component includes a conical plate and a connecting plate. The other ends of the two sets of connecting rods are respectively hinged to the inner walls of the two sets of conical plates. The upper ends of the two sets of conical plates are respectively fixedly connected to the two sets of connecting plates. The two sets of connecting plates are hinged together. The conical plate is used to expand the hole and sow the seedlings onto the seedling tray at the same time.
[0014] Furthermore, the uniform soil covering mechanism includes a soil chamber, a screen, and a vibrating motor. The lower end of the soil chamber, which is used to store soil, is fixedly connected to the ground. The bottom surface of the soil chamber has soil covering holes that are the same number as the row of seedling compartments in the seedling tray and are located one-to-one. A screen is fixedly connected to the soil covering holes. The outer shells of two sets of vibrating motors, which are symmetrically distributed on the left and right, are fixedly connected to the side wall of the soil chamber.
[0015] Compared with the prior art, the advantages of this utility model are as follows: 1. The mechanical structure design enables the conical block to complete the hole expansion and sowing operations at the same time, ensuring the quality of hole expansion while sowing, effectively improving the survival rate and overall quality of seedlings raised in seedling trays.
[0016] 2. The use of a vibrating motor and a screen to evenly cover the seedling tray with soil and the downward spreading method ensures that the soil does not spill out of the seedling tray and also ensures the uniformity of the thickness, thus improving the overall quality of seedling cultivation in the seedling tray. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This utility model relates to a three-dimensional seedling tray sowing device. Figure 1 ;
[0019] Figure 2 This is a front view of a seedling tray sowing device according to the present invention;
[0020] Figure 3 This is a top view of a seedling tray sowing device according to the present invention;
[0021] Figure 4 This utility model relates to a three-dimensional seedling tray sowing device. Figure 2 ;
[0022] Figure 5 for Figure 1 Enlarged view of point A in the middle;
[0023] Figure 6 for Figure 4 Enlarged view of point B in the middle;
[0024] Figure 7 for Figure 3 Enlarged view of point C in the middle.
[0025] The labels in the diagram represent:
[0026] 1. Belt conveyor; 2. Uniform soil covering mechanism; 21. Soil bin; 22. Soil covering hole; 23. Screen; 24. Vibrating motor; 25. Soil covering conical tube; 3. Hole-expanding and seeding dual-function mechanism; 31. Limiting and fixing component; 311. Fixed bracket; 312. Limiting groove; 313. Seedling pipe; 314. Slide rail; 315. Push cylinder; 32. Synchronous hole-expanding and seeding component; 321. Movable bracket; 322. Moving column; 323. Movable rod; 324. Rotating rod; 325. Connecting rod; 326. Conical plate; 327. Connecting plate. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0028] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.
[0029] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-7 A seedling tray sowing device includes a belt conveyor 1, a uniform soil covering mechanism 2, and a hole-expanding sowing dual-function mechanism 3. The uniform soil covering mechanism 2 and the hole-expanding sowing dual-function mechanism 3 are located above the belt conveyor 1, and the uniform soil covering mechanism 2 is located in front of the hole-expanding sowing dual-function mechanism 3. The hole-expanding sowing dual-function mechanism 3 is used to expand the holes in the seedling tray and sow seeds, and the uniform soil covering mechanism 2 is used to uniformly cover the seedling tray with soil after sowing.
[0030] The dual-function hole-expanding and seeding mechanism 3 includes a limiting and fixing component 31 and a synchronous hole-expanding and seeding component 32. The limiting and fixing component 31 is connected to the synchronous hole-expanding and seeding component 32. The limiting and fixing component 31 and the synchronous hole-expanding and seeding component 32 can work together to achieve the dual functions of hole expansion and seeding in one structure.
[0031] The limiting and fixing component 31 includes a fixed bracket 311, seedling pipes 313, and a driving component. The lower end of the fixed bracket 311 is fixedly connected to the ground. The outer walls of multiple sets of seedling pipes 313 are fixedly connected to the fixed bracket 311. The seedling pipes 313 are used to transfer the seedlings that need to be sown into the seedling tray to the synchronous hole-expanding sowing component 32. Two sets of driving components are respectively connected to the fixed bracket 311. The driving components are used to drive the synchronous hole-expanding sowing component 32 to move to realize the hole-expanding sowing function.
[0032] The drive assembly includes slide rails 314 and push cylinders 315. The outer shells of the two sets of push cylinders 315 are fixedly connected to both ends of the rear side wall of the fixed bracket 311. The output ends of the two sets of push cylinders 315 are connected to the synchronous hole-expanding seeding assembly 32. The two sets of slide rails 314 are located inside the two sets of push cylinders 315. The two sets of slide rails 314 are fixedly connected to the rear side wall of the fixed bracket 311. The two sets of slide rails 314 are connected to the synchronous hole-expanding seeding assembly 32.
[0033] The synchronous hole-expanding and seeding assembly 32 includes a movable support 321, a movable fork assembly, and a hole-expanding and seeding assembly. The movable support 321 is slidably connected to two sets of slide rails 314 via a slider. The movable support 321 is connected to multiple sets of movable fork assemblies, and the multiple sets of movable fork assemblies are connected to multiple sets of hole-expanding and seeding assemblies. The output ends of the two sets of push cylinders 315 are fixedly connected to the movable support 321.
[0034] The number of sets of seedling pipe 313, movable fork assembly and enlarged hole sowing assembly are the same and correspond one-to-one. The number of sets of the three is the number of seedling cells in a row of seedling trays.
[0035] The movable fork assembly includes a movable column 322, a movable rod 323, a rotating rod 324, and a connecting rod 325. The middle of the two sets of movable rods 323 are rotatably connected to the rotating rod 324. The rotating rod 324 is fixedly connected to the movable bracket 321. The two sets of movable columns 322 are respectively fixedly connected to the upper ends of the two sets of movable rods 323. The fixed bracket 311 is provided with a limiting groove 312 that is limited and slidably connected to the movable column 322. One end of the two sets of connecting rods 325 is hinged to the lower end of the two sets of movable rods 323, and the other end of the two sets of connecting rods 325 is connected to the hole-expanding seeding assembly.
[0036] The limiting groove 312 consists of two limiting moving grooves symmetrically distributed on the left and right. The limiting moving groove is composed of an upper vertical groove and a lower inclined groove. The vertical groove and the inclined groove are interconnected. The upper ends of the two sets of inclined grooves are closest to each other, and the lower ends are farthest apart.
[0037] The hole-expanding sowing assembly includes a conical plate 326 and a connecting plate 327. The other ends of the two sets of connecting rods 325 are respectively hinged to the inner walls of the two sets of conical plates 326. The upper ends of the two sets of conical plates 326 are respectively fixedly connected to the two sets of connecting plates 327. The two sets of connecting plates 327 are hinged. The conical plate 326 is used to expand the hole and sow the seedlings onto the seedling tray at the same time.
[0038] The uniform soil covering mechanism 2 includes a soil chamber 21, a screen 23, and a vibrating motor 24. The lower end of the soil chamber 21, which is used to store soil, is fixedly connected to the ground. The bottom surface of the soil chamber 21 has soil covering holes 22, which are the same number as the row of seedling compartments in the seedling tray and are located in one-to-one correspondence. The screen 23 is fixedly connected to the soil covering holes 22. The outer shells of two sets of vibrating motors 24, which are symmetrically distributed on the left and right, are fixedly connected to the side wall of the soil chamber 21.
[0039] Below each covering hole 22, a soil chamber 21 is fixedly connected with a corresponding number of covering cone tubes 25. The covering cone tubes 25 play a guiding role when the soil is sprinkled, making the covering process more stable and also ensuring that the soil is not easily spilled outside the seedling tray.
[0040] The aperture of screen 23 is 2-3mm.
[0041] In this invention, when the seedling tray moves to below the conical plate 326 via the belt conveyor 1, the belt conveyor 1 stops moving, and the seedlings are transferred to the conical plate 326 through the seedling pipe 313. The push cylinder 315 is activated, and the movable support 321 can only move downwards under the limiting action of the slide rail 314. With the combined cooperation of the fixed support 311, the limiting groove 312, the moving column 322, and the rotating rod 324, when the moving column 322 moves in the vertical groove, the two sets of movable rods 323 move downwards. When the moving column 322 moves in the inclined groove, the lower ends of the two sets of movable rods 323 move downwards simultaneously. The two conical plates 326 move away from each other, which in turn causes the connecting rods 325 to move away from each other. Under the limiting action of the connecting plate 327, the two conical plates 326 move away from each other. Thus, the two functions of hole expansion and sowing are carried out simultaneously with one component. After sowing is completed, the push cylinder 315 is reset, which drives the movable support 321, the moving column 322, the movable rod 323, the rotating rod 324, the connecting rod 325 and the conical plate 326 to reset. The belt conveyor 1 starts to move. When the next row of seedling cells of the seedling tray is below the conical plate 326, the belt conveyor 1 stops moving. Repeat the above operation to realize the sowing of the seedling tray.
[0042] When the seedling tray moves to the area below the covering hole 22 and the covering cone tube 25 via the belt conveyor 1, the belt conveyor 1 stops moving, the vibrating motor 24 starts, and the soil in the soil chamber 21 is sprinkled down from the screen 23. Under the guidance of the covering cone tube 25, the soil is evenly sprinkled into the seedling cells of the seedling tray. The vibrating motor 24 is turned off, and the belt conveyor 1 starts moving. When the next row of seedling cells of the seedling tray is below the covering hole 22, the belt conveyor 1 stops moving. Repeat the above operation to complete the covering process after the seedling tray is sown.
[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A seedling tray sowing device, comprising a belt conveyor (1), characterized in that: It also includes a uniform soil covering mechanism (2) and a hole-expanding and seeding dual-function mechanism (3). The uniform soil covering mechanism (2) and the hole-expanding and seeding dual-function mechanism (3) are located above the belt conveyor (1). The uniform soil covering mechanism (2) is located in front of the hole-expanding and seeding dual-function mechanism (3). The hole-expanding and seeding dual-function mechanism (3) is used to expand the holes in the seedling tray and sow seeds. The uniform soil covering mechanism (2) is used to uniformly cover the seedling tray after sowing. The hole-expanding and seeding dual-function mechanism (3) includes a limiting and fixing component (31) and a synchronous hole-expanding and seeding component (32). The limiting and fixing component (31) is connected to the synchronous hole-expanding and seeding component (32). The limiting and fixing component (31) and the synchronous hole-expanding and seeding component (32) can work together to realize the hole-expanding and seeding dual functions in one structure.
2. The seedling tray seeding apparatus according to claim 1, characterized by, The limiting and fixing component (31) includes a fixed bracket (311), seedling pipes (313) and a drive component. The lower end of the fixed bracket (311) is fixedly connected to the ground. The outer walls of multiple sets of seedling pipes (313) are fixedly connected to the fixed bracket (311). The seedling pipes (313) are used to transfer the seedlings that need to be sown into the seedling tray to the synchronous hole-expanding sowing component (32). Two sets of drive components are respectively connected to the fixed bracket (311). The drive components are used to drive the synchronous hole-expanding sowing component (32) to move to realize the hole-expanding sowing function.
3. The seedling tray seeding apparatus according to claim 2, characterized by, The drive assembly includes slide rails (314) and push cylinders (315). The outer shells of the two sets of push cylinders (315) are fixedly connected to both ends of the rear side wall of the fixed bracket (311). The output ends of the two sets of push cylinders (315) are connected to the synchronous hole-expanding seeding assembly (32). The two sets of slide rails (314) are located inside the two sets of push cylinders (315). The two sets of slide rails (314) are fixedly connected to the rear side wall of the fixed bracket (311). The two sets of slide rails (314) are connected to the synchronous hole-expanding seeding assembly (32).
4. The seedling tray seeding apparatus according to claim 3, characterized by The synchronous hole-expanding seeding assembly (32) includes a movable support (321), a movable fork assembly, and a hole-expanding seeding assembly. The movable support (321) is slidably connected to two sets of slide rails (314) via a slider. The movable support (321) is connected to multiple sets of movable fork assemblies, and the multiple sets of movable fork assemblies are connected to multiple sets of hole-expanding seeding assemblies. The output ends of the two sets of push cylinders (315) are fixedly connected to the movable support (321).
5. The seedling tray seeding apparatus according to claim 4, characterized in that, The number of seedling pipes (313), movable fork components and enlarged hole sowing components are the same and correspond one-to-one. The number of the three components is the number of seedling cells in a row of seedling trays.
6. The seedling tray seeding apparatus according to claim 4, characterized by The movable fork assembly includes a movable column (322), a movable rod (323), a rotating rod (324), and a connecting rod (325). The middle of the two sets of movable rods (323) is rotatably connected to the rotating rod (324). The rotating rod (324) is fixedly connected to the movable bracket (321). The two sets of movable columns (322) are fixedly connected to the upper ends of the two sets of movable rods (323) respectively. The fixed bracket (311) is provided with a limiting groove (312) that is limited and slidably connected to the movable column (322). One end of the two sets of connecting rods (325) is hinged to the lower end of the two sets of movable rods (323), and the other end of the two sets of connecting rods (325) is connected to the hole-expanding seeding assembly.
7. The seedling tray seeding apparatus according to claim 6, characterized in that, The hole-expanding sowing assembly includes a conical plate (326) and a connecting plate (327). The other ends of the two sets of connecting rods (325) are respectively hinged to the inner walls of the two sets of conical plates (326). The upper ends of the two sets of conical plates (326) are respectively fixedly connected to the two sets of connecting plates (327). The two sets of connecting plates (327) are hinged. The conical plate (326) is used to expand the hole and sow the seedlings onto the seedling tray at the same time.
8. The seedling tray seeding apparatus according to claim 1, characterized by The uniform soil covering mechanism (2) includes a soil chamber (21), a screen (23) and a vibrating motor (24). The lower end of the soil chamber (21) used to store soil is fixedly connected to the ground. The bottom surface of the soil chamber (21) has soil covering holes (22) that are the same number as the row of seedling compartments in the seedling tray and are in one-to-one correspondence. The screen (23) is fixedly connected to the soil covering holes (22). The outer shells of two sets of vibrating motors (24) symmetrically distributed on the left and right are fixedly connected to the side wall of the soil chamber (21).