A seed positioning device for *Gnaphalium affine*

By designing a seed sowing positioning device and utilizing batch sowing and positioning mechanisms, the problems of uneven sowing and inaccurate positioning of traditional heart-shaped vegetable seeds have been solved, thereby improving the stability and efficiency of the sowing process.

CN224267352UActive Publication Date: 2026-05-26YUNNAN WANGNUOCUO AGRICULTURAL DEVELOPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN WANGNUOCUO AGRICULTURAL DEVELOPMENT CO LTD
Filing Date
2025-07-10
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional methods of sowing seeds of *Hemiberlesia lingua* are labor-intensive and inefficient, and existing equipment has complex positioning mechanisms and low precision, making it difficult to achieve accurate and uniform sowing.

Method used

The batch sowing mechanism consists of a seed box, rectangular through holes, batch feeding wheels, stepper motors, drive shafts, and feeding holes. Combined with a positioning mechanism consisting of a horizontal base frame, X-axis guide rails, Y-axis guide rails, bidirectional motors, X-axis lead screws, Y-axis lead screws, X-axis sliders, and Y-axis sliders, it achieves flexible control of sowing quantity and rapid positioning.

Benefits of technology

It improves the stability and uniformity of the sowing process, enhances sowing quality and efficiency, and meets the quality and efficiency requirements of *Heliotropium indicum* cultivation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a seed sowing and positioning device for *Hedysarum heterotropoides*, which includes a horizontal base frame. X-axis guide rails are fixedly connected to the inner walls of both sides of the horizontal base frame. A first bidirectional motor is fixedly connected to one end of each X-axis guide rail. The output end of the first bidirectional motor is threadedly connected to an X-axis slider via an X-axis lead screw. The X-axis slider is fixedly connected to a Y-axis guide rail. A second bidirectional motor is fixedly connected to one end of each Y-axis guide rail. The output end of the second bidirectional motor is threadedly connected to a Y-axis slider via a Y-axis lead screw. The device comprises a seed box, a rectangular through-hole, a mounting shell, batch feeding wheels, a stepper motor, a drive shaft, and a feeding hole, forming a flexibly controllable batch sowing mechanism. This prevents the amount of seeds sown at the sowing position from being too little or too much, making the sowing process more stable.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural technology, and in particular to a seed positioning device for *Gnaphalium affine* seeds. Background Technology

[0002] In the agricultural planting sector, *Heliotropium indicum*, a unique vegetable with both edible and medicinal value, is experiencing a growing demand for large-scale cultivation. However, traditional seed sowing methods for *Heliotropium indicum* have numerous problems, severely impacting sowing quality and efficiency.

[0003] On the one hand, manual sowing is not only labor-intensive and inefficient, but also makes it difficult to accurately control the sowing quantity and location, easily resulting in too few or too many seeds at the same location. This leads to uneven growth of the Chinese cabbage, affecting yield and quality. On the other hand, while existing sowing equipment has achieved mechanization to some extent, its positioning mechanism often suffers from complex structure and low positioning accuracy, failing to quickly locate the sowing position within a certain range. This results in uneven seed placement, reducing sowing quality and land utilization. Therefore, developing a Chinese cabbage seed sowing positioning device that can flexibly control the batch sowing quantity and achieve rapid and accurate sowing location is of great significance for improving the quality and efficiency of Chinese cabbage cultivation and promoting the development of the Chinese cabbage industry. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a seed sowing and positioning device for *Hedysarum heterotropoides*. This device comprises a seed box, a rectangular through-hole, a mounting shell, batch feeding wheels, a stepper motor, a drive shaft, and a feeding hole, forming a flexibly controllable batch sowing mechanism. This prevents the amount of seeds sown at the sowing position from being too little or too much, making the sowing process more stable. A positioning mechanism, composed of a horizontal base frame, X-axis guide rails, Y-axis guide rails, a bidirectional motor, X-axis lead screws, Y-axis lead screws, X-axis sliders, and Y-axis sliders, can quickly position the sowing direction within a certain range and prevent uneven seed sowing, thus improving the sowing quality and efficiency of the device.

[0005] This utility model also provides a seed sowing and positioning device for *Gnaphalium affine* seeds, comprising: a horizontal base frame, with X-axis guide rails fixedly connected to the inner walls of both sides of the horizontal base frame; a first bidirectional motor fixedly connected to one end of the X-axis guide rail; an X-axis slider threadedly connected to the output end of the first bidirectional motor via an X-axis lead screw; a Y-axis guide rail fixedly connected to the X-axis slider; a second bidirectional motor fixedly connected to one end of the Y-axis guide rail; a Y-axis slider threadedly connected to the output end of the second bidirectional motor via a Y-axis lead screw; a seed box fixedly connected to the lower surface of the Y-axis slider; a rectangular through hole at the lower end of the seed box; a mounting shell fixedly connected to the lower surface of the seed box; a batch feeding wheel inside the mounting shell; a connection between the upper end of the mounting shell and the seed box via the rectangular through hole; a feeding hole at the lower end of the mounting shell; and a stepper motor fixedly connected to the side surface of the mounting shell, with the output end of the stepper motor fixedly connected to the batch feeding wheel via a drive shaft.

[0006] According to the present invention, a seed-planting and positioning device for *Gnaphalium affine* (a type of mustard green) includes fixed legs fixedly connected to the lower surface of a horizontal base frame. The fixed legs are located at the four corners of the horizontal base frame, and casters are fixedly connected to the lower ends of the fixed legs. This facilitates the movement of the device and improves its ease of use.

[0007] According to the present invention, a seed sowing and positioning device for *Gnaphalium affine* is provided, wherein both ends of the X-axis guide rail are fixedly connected to the inner side wall of the horizontal base frame, and X-axis grooves are provided on both the upper and lower inner walls of the X-axis guide rail. This facilitates the limiting and installation of the X-axis slider.

[0008] According to the seed positioning device for *Gnaphalium affine* described in this utility model, X-axis sliding rods are fixedly connected to both the upper and lower surfaces of the X-axis slider, and the X-axis sliding rods slide within the X-axis groove. This facilitates the stable movement of the X-axis slider.

[0009] According to the seed sowing and positioning device for *Gnaphalium affine* described in this utility model, Y-axis grooves are provided on the inner walls of both the left and right sides of the Y-axis guide rail. This facilitates the limiting and installation of the Y-axis slider.

[0010] According to the seed positioning device for *Gnaphalium affine* described in this utility model, Y-axis sliding rods are fixedly connected to both the left and right sides of the Y-axis slider, and the Y-axis sliding rods slide within the Y-axis groove. This facilitates the stable movement of the Y-axis slider.

[0011] According to the present invention, a seed-planting and positioning device for *Heliotropium indicum* seeds is provided with a filling hole at the upper end of the seed box for convenient seed replenishment. A sealing plug is threaded into the filling hole to facilitate sealing of the seed box.

[0012] According to the seed sowing and positioning device for *Hedysarum heterotropoides* described in this utility model, the side surface of the batch conveying wheel abuts against the inner side wall of the mounting shell, making the structure stable and compact. A mounting shaft is fixedly connected to the side of the batch conveying wheel away from the stepper motor, and the mounting shaft is sleeved with the mounting shell, which facilitates the stable installation of the batch conveying wheel.

[0013] Beneficial effects:

[0014] 1. Compared with the existing technology, the seed sowing and positioning device for *Hedysarum heterotropoides* consists of a seed box, a rectangular through hole, a mounting shell, a batch feeding wheel, a stepper motor, a drive shaft and a feeding hole, which can be flexibly controlled in batch sowing. This can prevent the amount of seeds sown at the sowing position from being too little or too much, making the sowing process more stable.

[0015] 2. Compared with the existing technology, this seed sowing and positioning device for *Hedysarum heterotropoides* consists of a horizontal base frame, an X-axis guide rail, a Y-axis guide rail, a bidirectional motor, an X-axis lead screw, a Y-axis lead screw, an X-axis slider, and a Y-axis slider, which can quickly position the sowing direction within a certain range and prevent uneven sowing of seeds, thereby improving the sowing quality and efficiency of the device. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the bottom structure of a seed sowing and positioning device for *Hedysarum heterotropoides* according to this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of a seed sowing and positioning device for *Hedysarum heterotropoides* according to this utility model;

[0019] Figure 3 This is a longitudinal three-dimensional cross-sectional structural diagram of a seed sowing and positioning device for *Gnaphalium affine* according to this utility model;

[0020] Figure 4 This is a schematic diagram of the transverse three-dimensional cross-sectional structure of a seed sowing and positioning device for *Gnaphalium affine* according to this utility model.

[0021] Legend:

[0022] 1. Horizontal base frame; 2. Fixed support legs; 3. Casters; 4. Second bidirectional motor; 5. Sealing plug; 6. X-axis guide rail; 7. First bidirectional motor; 8. Y-axis guide rail; 9. Seed box; 10. Mounting shell; 11. X-axis lead screw; 12. X-axis slider; 13. X-axis slide bar; 14. X-axis groove; 15. Y-axis lead screw; 16. Y-axis slider; 17. Y-axis slide bar; 18. Y-axis groove; 19. Rectangular through hole; 20. Batch conveyor wheel; 21. Stepper motor; 22. Drive shaft; 23. Mounting shaft; 24. Discharge hole; 25. Injection hole. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model discloses a seed sowing and positioning device for *Gnaphalium affine*, comprising a horizontal base frame 1. Fixed support legs 2 are fixedly connected to the lower surface of the horizontal base frame 1, located at the four corners of the horizontal base frame 1. Casters 3 are fixedly connected to the lower ends of the fixed support legs 2. X-axis guide rails 6 are fixedly connected to the inner walls of both sides of the horizontal base frame 1. The two ends of the X-axis guide rails 6 are fixedly connected to the inner walls of the horizontal base frame 1. X-axis sliding grooves 14 are provided on the upper and lower inner walls of the X-axis guide rails 6. A first bidirectional motor 7 is fixedly connected to one end of the X-axis guide rail 6. The output end of the first bidirectional motor 7 is connected via X... The X-axis slider 12 is threadedly connected to the lead screw 11. X-axis slide rods 13 are fixedly connected to both the upper and lower surfaces of the X-axis slider 12. The X-axis slide rods 13 slide within the X-axis slide groove 14. The X-axis slider 12 is fixedly connected to the Y-axis guide rail 8. Y-axis slide grooves 18 are provided on both the left and right inner walls of the Y-axis guide rail 8. A second bidirectional motor 4 is fixedly connected to one end of the Y-axis guide rail 8. The output end of the second bidirectional motor 4 is threadedly connected to the Y-axis slider 16 via the Y-axis lead screw 15. Y-axis slide rods 17 are fixedly connected to both the left and right surfaces of the Y-axis slider 16. The Y-axis slide rods 17 slide within the Y-axis slide groove 18.

[0025] Specifically, during the positioning of the sowing location, the first bidirectional motor 7 inside the X-axis guide rail 6 drives the X-axis lead screw 11 to rotate in both directions. The X-axis lead screw 11 drives the X-axis slider 12 to move along the X-axis. The X-axis slider 12 drives the Y-axis guide rail 8 to move along the X-axis, which in turn drives the seed box 9 to move along the X-axis. The second bidirectional motor 4 inside the Y-axis guide rail 8 drives the Y-axis lead screw 15 to rotate in both directions. The Y-axis lead screw 15 drives the Y-axis slider 16 to move along the Y-axis. The Y-axis slider 16 drives the seed box 9 to move along the Y-axis.

[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4Seed box 9 is fixedly connected to the lower surface of Y-axis slider 16. The upper end of seed box 9 is provided with injection hole 25, and sealing plug 5 is threadedly connected to injection hole 25. The lower end of seed box 9 is provided with rectangular through hole 19. Mounting shell 10 is fixedly connected to the lower surface of seed box 9. Batch conveying wheel 20 is provided inside mounting shell 10. The upper end of mounting shell 10 is connected to seed box 9 through rectangular through hole 19. The lower end of mounting shell 10 is provided with discharge hole 24. Stepper motor 21 is fixedly connected to the side surface of mounting shell 10. The output end of stepper motor 21 is fixedly connected to batch conveying wheel 20 through drive shaft 22. The side surface of batch conveying wheel 20 abuts against the inner side wall of mounting shell 10. Mounting shaft 23 is fixedly connected to the side of batch conveying wheel 20 away from stepper motor 21. Mounting shaft 23 is sleeved with mounting shell 10.

[0027] Specifically, a sufficient amount of *Hedysarum heterotropoides* seeds are added into the seed box 9 through the injection hole 25, and then the sealing plug 5 is tightened. During the sowing process, the *Hedysarum heterotropoides* seeds in the seed box 9 will fall onto the batch conveying wheel 20 through the rectangular through hole 19. The stepper motor 21 will drive the batch conveying wheel 20 to rotate inside the mounting shell 10, and the *Hedysarum heterotropoides* seeds will fall out in batches from the discharge hole 24.

[0028] Working principle: The seed positioning device for *Hedysarum heterotropoides* seeds is used for positioning and sowing. During sowing, the seeds in the seed box 9 will fall onto the batch conveying wheel 20 through the rectangular through hole 19. The stepper motor 21 will drive the batch conveying wheel 20 to rotate inside the mounting shell 10, and the seeds will fall in batches from the discharge hole 24. During the positioning and sowing process, the X-axis guide rail 6 will drive the seed box 9 to move along the X-axis, and the Y-axis guide rail 8 will drive the seed box 9 to move along the Y-axis.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A seed-planting and positioning device for *Gnaphalium affine*, characterized in that, include: A horizontal base frame (1) is provided. X-axis guide rails (6) are fixedly connected to the inner walls of the left and right sides of the horizontal base frame (1). A first bidirectional motor (7) is fixedly connected to one end of the X-axis guide rail (6). An X-axis slider (12) is threadedly connected to the output end of the first bidirectional motor (7) through an X-axis lead screw (11). A Y-axis guide rail (8) is fixedly connected to the X-axis slider (12). A second bidirectional motor (4) is fixedly connected to one end of the Y-axis guide rail (8). A Y-axis slider (16) is threadedly connected to the output end of the second bidirectional motor (4) through a Y-axis lead screw (15). Seed box (9), the seed box (9) is fixedly connected to the lower surface of Y-axis slider (16), the lower end of the seed box (9) is provided with a rectangular through hole (19), the lower surface of the seed box (9) is fixedly connected with a mounting shell (10), the inside of the mounting shell (10) is provided with a batch conveying wheel (20), the upper end of the mounting shell (10) is connected to the seed box (9) through the rectangular through hole (19), the lower end of the mounting shell (10) is provided with a feeding hole (24), the side surface of the mounting shell (10) is fixedly connected with a stepper motor (21), the output end of the stepper motor (21) is fixedly connected to the batch conveying wheel (20) through a drive shaft (22).

2. The seed positioning device for *Heliotropium indicum* according to claim 1, characterized in that, The lower surface of the horizontal base frame (1) is fixedly connected to a fixed support leg (2), the fixed support leg (2) is located at the four corners of the horizontal base frame (1), and the lower end of the fixed support leg (2) is fixedly connected to a caster (3).

3. The seed-planting positioning device for *Heliotropium indicum* according to claim 1, characterized in that, The two ends of the X-axis guide rail (6) are fixedly connected to the inner side wall of the horizontal base frame (1), and the upper and lower inner walls of the X-axis guide rail (6) are provided with X-axis grooves (14).

4. The seed positioning device for *Heliotropium indicum* according to claim 1, characterized in that, The upper and lower surfaces of the X-axis slider (12) are fixedly connected with X-axis slide rods (13), which slide within the X-axis slide groove (14).

5. The seed-planting positioning device for *Heliotropium indicum* according to claim 1, characterized in that, The Y-axis guide rail (8) is provided with Y-axis grooves (18) on both the left and right inner walls.

6. The seed positioning device for *Heliotropium indicum* according to claim 1, characterized in that, The left and right sides of the Y-axis slider (16) are fixedly connected to Y-axis slide rods (17), which slide within the Y-axis slide groove (18).

7. The seed positioning device for *Heliotropium indicum* according to claim 1, characterized in that, The seed box (9) is provided with a filling hole (25) at the upper end, and a sealing plug (5) is threadedly connected to the filling hole (25).

8. The seed positioning device for *Heliotropium indicum* according to claim 1, characterized in that, The side surface of the batch material conveying wheel (20) abuts against the inner side wall of the mounting shell (10). The side of the batch material conveying wheel (20) away from the stepper motor (21) is fixedly connected to the mounting shaft (23), and the mounting shaft (23) is sleeved with the mounting shell (10).