Agricultural seedling transplanting device
By designing an agricultural seedling transplanting device, which combines a seedling raising line and a planting line with a drive assembly and a seedling picking and placing assembly, and utilizes a variable pitch mechanism and motor drive, the device achieves automated seedling transplanting. This solves the problems of high manual labor load and complex and costly equipment in existing technologies, thereby improving transplanting efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG DASHI AUTOMATION TECH CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-05
AI Technical Summary
In the current technology, the transplanting process of vegetable seedlings relies on manual operation, which is labor-intensive and inefficient. Moreover, existing automated equipment is complex in structure and expensive, making it difficult to popularize.
Design an agricultural seedling transplanting device that uses a seedling raising line and a planting line arranged side by side, combined with a drive unit and a seedling picking and placing unit. Utilize a variable pitch mechanism and motor drive to realize the automated picking and transplanting of seedlings. The variable pitch screw and connecting rod connection ensures that the mounting frame moves at equal distances, completing the efficient transplanting of seedlings from the seedling tray to the planting tray.
It automates seedling transplanting, improves work efficiency, completely replaces manual operation, has a simple structure, low cost, and is easy to popularize and apply.
Smart Images

Figure CN224192641U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an agricultural seedling transplanting device, belonging to the field of seedling transplanting technology. Background Technology
[0002] According to the "Research and Development Trend Analysis Report on China's Vegetable Processing Market," the vegetable processing industry is continuously expanding, with leading enterprises playing an increasingly prominent role. Vegetables have become my country's second largest crop after grains. Hydroponics for vegetables will significantly improve both yield and quality.
[0003] In hydroponics, vegetable seedlings are initially grown in high-density seedling trays. As the seedlings grow, they are then transplanted into planting trays with lower density and more space. The planting holes in the seedling trays and planting trays are evenly spaced both horizontally and vertically. In current technology, transplanting is generally done manually, which is labor-intensive and inefficient. Automated transplanting equipment exists abroad, but it is complex, costly, and has a low adoption rate.
[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content
[0005] This utility model addresses the shortcomings of the prior art by providing an agricultural seedling transplanting device that can automate seedling transplanting. It is highly efficient during the transplanting process, completely replacing manual labor, and has a simple structure, low cost, and is easy to popularize and apply.
[0006] To solve the above technical problems, the present invention adopts the following technical solution:
[0007] An agricultural seedling transplanting device includes a seedling raising line and a planting line arranged side by side. The seedling raising line carries seedling trays with small seedling spacing, while the planting line carries planting trays with larger seedling spacing.
[0008] Above the seedling raising line and the planting line is a seedling picking and placing unit driven by a drive unit, which drives the seedling picking and placing unit to move forward, backward, left and right.
[0009] The seedling picking and placing unit includes a mounting plate, a guide rail is horizontally mounted on the front side of the mounting plate, four mounting frames are mounted side by side on the guide rail, and a seedling gripping device is mounted on the lower end of the mounting frame.
[0010] The four mounting brackets are interconnected by a pitch-changing mechanism, which includes short connecting rods and long connecting rods. The mounting brackets at both ends are provided with two short connecting rods that are hinged to a point on the mounting bracket, and the ends of the two short connecting rods are hinged to the mounting bracket. The two middle mounting brackets are provided with two long connecting rods that are hinged to a point on the mounting bracket, and the middle position of the two long connecting rods is hinged to the mounting bracket. The long connecting rods and the short connecting rods are hinged together end to end.
[0011] Furthermore, the leftmost mounting bracket is fixedly mounted on the guide rail, the other three mounting brackets are slidably mounted on the guide rail, and the rightmost mounting bracket is driven by a translation drive device.
[0012] Furthermore, the translation drive device includes a pitch motor fixed on the right side of the mounting plate, the pitch motor drives the pitch screw to rotate, and the pitch screw is threadedly engaged with the rightmost mounting bracket.
[0013] Furthermore, the seedling raising line and the planting line are installed on the base, and support columns are vertically installed at the four corners of the base, with the drive unit installed on the top of the support columns.
[0014] Furthermore, the drive assembly includes two longitudinal lead screws rotatably mounted on the support column. The two longitudinal lead screws are arranged in parallel and spaced apart. Synchronous pulleys are respectively installed at both ends of the longitudinal lead screws. The synchronous pulleys opposite each other on the two longitudinal lead screws are driven by a synchronous belt.
[0015] A longitudinal moving seat is threadedly installed on each longitudinal lead screw, and a transverse lead screw is rotatably installed on the two longitudinal moving seats. A transverse moving seat is threadedly installed on the transverse guide rod, and a seedling picking and placing device is installed at the lower end of the transverse moving seat.
[0016] Furthermore, a transverse guide rod is installed between the two longitudinal moving seats, and the transverse moving seat is slidably mounted on the transverse guide rod. The transverse lead screw is driven by a transverse moving motor.
[0017] Furthermore, one of the longitudinal lead screws is connected to a longitudinal movement motor.
[0018] Furthermore, a vertical guide rod is vertically slidably installed on the transverse moving seat, and the lower end of the vertical guide rod is fixedly connected to the mounting plate of the seedling picking and placing unit. An electric push rod is also installed on the transverse moving seat, and the lower end of the electric push rod is connected to the mounting plate.
[0019] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:
[0020] When the variable pitch screw rotates, it drives the rightmost mounting frame to move left and right. The mounting frames are connected by long and short connecting rods, so that the four mounting frames maintain an equal distance during movement. When picking up seedlings from the seedling tray, the seedling picking and placing unit driven by the drive assembly moves horizontally to the designated position, and then the four mounting frames are brought together at equal distance. When the seedling is placed on the planting tray, the four mounting frames are separated at equal distance, thus realizing automated seedling transplanting. It is highly efficient in the transplanting process, completely replaces manual operation, and has a simple structure, low cost, and is easy to popularize and apply.
[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0022] Figure 1 This is a side view of the present invention;
[0023] Figure 2 (The top view of this utility model does not include the drive assembly).
[0024] Figure 3 This is a structural schematic diagram of the drive assembly in this utility model;
[0025] Figure 4 This is a schematic diagram of the seedling loading and unloading assembly in this utility model.
[0026] In the picture,
[0027] 1-Base, 2-Seedling line, 201-Seedling tray, 3-Planting line, 301-Planting tray, 4-Supporting column, 5-Longitudinal lead screw, 6-Synchronous pulley, 7-Synchronous belt, 8-Longitudinal moving seat, 9-Transverse moving seat, 10-Vertical guide rod, 11-Electric push rod, 12-Pitch changing mechanism, 13-Mounting plate, 14-Short connecting rod, 15-Long connecting rod, 16-Mounting frame, 17-Guide rail, 18-Pitch changing lead screw, 19-Pitch changing motor, 20-Transverse moving motor, 21-Transverse guide rod, 22-Transverse lead screw, 23-Longitudinal moving motor. Detailed Implementation
[0028] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.
[0029] like Figure 1-4 As shown, this utility model provides an agricultural seedling transplanting device, including a seedling raising line 2 and a planting line 3 arranged side by side. The seedling raising line 2 carries seedling trays 201 with small seedling spacing, while the planting line 3 carries planting trays 301 with larger seedling spacing.
[0030] Above the seedling raising line 2 and the planting line 3, there is a seedling picking and placing unit driven by a drive unit, which drives the seedling picking and placing unit to move back, forth, left, and right.
[0031] The seedling picking and placing unit includes a mounting plate 13. A guide rail 17 is horizontally mounted on the front side of the mounting plate 13. Four mounting brackets 16 are mounted side by side on the guide rail 17. A seedling gripping device (not shown in the figure) is mounted on the lower end of the mounting bracket 16. There are various structural forms of the seedling gripping device. The most common one is that two grippers are driven by a gripper cylinder to hold the seedling.
[0032] like Figure 4 Four mounting brackets 16 are interconnected via a pitch-changing mechanism 12. The pitch-changing mechanism 12 includes short connecting rods 14 and long connecting rods 15. Two short connecting rods 14 are hinged to a single point on each of the two end mounting brackets 16, with their ends hinged to the mounting brackets 16. Two long connecting rods 15 are hinged to a single point on each of the two middle mounting brackets 16, with their middle positions hinged to the mounting brackets 16. The long connecting rods 15 and short connecting rods 14 are hinged end-to-end, forming a rhombus shape. The leftmost mounting bracket 16 is fixedly mounted on a guide rail 17, while the other three mounting brackets 16 are slidably mounted on the guide rail 17. The rightmost mounting bracket 16 is driven by a translation drive device.
[0033] The translation drive device includes a variable pitch motor 19 fixed to the right side of the mounting plate 13. The variable pitch motor 19 drives the variable pitch lead screw 18 to rotate. The variable pitch lead screw 18 is threadedly engaged with the rightmost mounting frame 16. When the variable pitch lead screw 18 rotates, it drives the rightmost mounting frame 16 to move left and right. The mounting frames 16 are connected by a long connecting rod 15 and a short connecting rod 14, so that the four mounting frames 16 maintain an equal distance during movement. When picking up seedlings from the seedling tray 201, the seedling picking and placing unit driven by the drive assembly moves horizontally to the designated position, and then the four mounting frames 16 are brought together at equal distance. When the seedling is placed on the planting tray 301, the four mounting frames 16 are separated at equal distance, thereby realizing automated seedling transplanting. It is highly efficient in the transplanting process, completely replaces manual operation, and has a simple structure, low cost, and is easy to popularize and apply.
[0034] The aforementioned translation drive device is only one implementation method, and it can also be replaced by other electric or pneumatic devices, which will not be elaborated here.
[0035] The seedling line 2 and the planting line 3 are installed on the base 1. Support columns 4 are vertically installed at the four corners of the base 1, and the drive unit is installed on the top of the support columns 4.
[0036] like Figure 1 and Figure 3The drive assembly includes two longitudinal lead screws 5 rotatably mounted on the support column 4. The two longitudinal lead screws 5 are arranged in parallel and spaced apart. Synchronous pulleys 6 are respectively installed at both ends of the longitudinal lead screws 5. The synchronous pulleys 6 opposite to the two longitudinal lead screws 5 are driven by a synchronous belt 7. A longitudinal moving seat 8 is threadedly installed on each longitudinal lead screw 5. A transverse lead screw 22 is rotatably installed on the two longitudinal moving seats 8. A transverse moving seat 9 is threadedly installed on the transverse guide rod 21. The seedling picking and placing assembly is installed at the lower end of the transverse moving seat 9.
[0037] A transverse guide rod 21 is also installed between the two longitudinal moving seats 8. The transverse moving seat 9 is slidably mounted on the transverse guide rod 21. The transverse lead screw 22 is driven by the transverse moving motor 20.
[0038] One of the longitudinal lead screws 5 is connected to the longitudinal moving motor 23.
[0039] like Figure 1 A vertical guide rod 10 is vertically slidably mounted on the transverse moving seat 9. The lower end of the vertical guide rod 10 is fixedly connected to the mounting plate 13 of the seedling picking and placing unit. An electric push rod 11 is also mounted on the transverse moving seat 9, and the lower end of the electric push rod 11 is connected to the mounting plate 13. During transplanting, the electric push rod 11 can drive the seedling picking and placing unit to move up and down.
[0040] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.
Claims
1. An agricultural seedling transplanting device, characterized in that: It includes a seedling raising line (2) and a planting line (3) arranged side by side. The seedling raising line (2) carries seedling trays (201) with small seedling spacing, and the planting line (3) carries planting trays (301) with large seedling spacing. Above the seedling line (2) and the planting line (3) is a seedling picking and placing unit driven by a drive unit, which drives the seedling picking and placing unit to move forward, backward, left and right. The seedling picking and placing unit includes a mounting plate (13), a guide rail (17) is horizontally mounted on the front side of the mounting plate (13), four mounting frames (16) are mounted side by side on the guide rail (17), and a seedling gripping device is mounted on the lower end of the mounting frame (16). Four mounting brackets (16) are interconnected by a pitch-changing mechanism (12). The pitch-changing mechanism (12) includes short connecting rods (14) and long connecting rods (15). Two short connecting rods (14) are respectively provided on the mounting brackets (16) at both ends, and the ends of the two short connecting rods (14) are hinged to the mounting brackets (16). Two long connecting rods (15) are respectively provided on the two middle mounting brackets (16), and the two long connecting rods (15) are hinged to the mounting brackets (16) at the middle position. The long connecting rods (15) and the short connecting rods (14) are hinged together end to end.
2. The agricultural seedling transplanting device as described in claim 1, characterized in that: The leftmost mounting bracket (16) is fixedly mounted on the guide rail (17), the other three mounting brackets (16) are slidably mounted on the guide rail (17), and the rightmost mounting bracket (16) is driven by a translation drive device.
3. The agricultural seedling transplanting device as described in claim 2, characterized in that: The translation drive device includes a variable pitch motor (19) fixed on the right side of the mounting plate (13). The variable pitch motor (19) drives the variable pitch screw (18) to rotate. The variable pitch screw (18) is threadedly engaged with the rightmost mounting bracket (16).
4. The agricultural seedling transplanting device as described in claim 1, characterized in that: The seedling line (2) and the planting line (3) are installed on the base (1), and the four corners of the base (1) are vertically equipped with support columns (4), and the drive unit is installed on the top of the support columns (4).
5. The agricultural seedling transplanting device as described in claim 4, characterized in that: The drive assembly includes two longitudinal lead screws (5) rotatably mounted on the support column (4). The two longitudinal lead screws (5) are arranged in parallel and spaced apart. Synchronous pulleys (6) are respectively installed at both ends of the longitudinal lead screws (5). The synchronous pulleys (6) opposite to the two longitudinal lead screws (5) are driven by a synchronous belt (7). A longitudinal moving seat (8) is threadedly installed on each longitudinal lead screw (5), and a transverse lead screw (22) is rotatably installed on the two longitudinal moving seats (8). A transverse moving seat (9) is threadedly installed on the transverse guide rod (21), and a seedling picking and placing device is installed at the lower end of the transverse moving seat (9).
6. The agricultural seedling transplanting device as described in claim 5, characterized in that: A transverse guide rod (21) is also installed between the two longitudinal moving seats (8). The transverse moving seat (9) is slidably mounted on the transverse guide rod (21). The transverse lead screw (22) is driven by the transverse moving motor (20).
7. An agricultural seedling transplanting device as described in claim 6, characterized in that: One of the longitudinal lead screws (5) is connected to the longitudinal moving motor (23).
8. An agricultural seedling transplanting device as described in claim 7, characterized in that: A vertical guide rod (10) is vertically slidably installed on the transverse moving seat (9). The lower end of the vertical guide rod (10) is fixedly connected to the mounting plate (13) of the seedling picking and placing unit. An electric push rod (11) is also installed on the transverse moving seat (9). The lower end of the electric push rod (11) is connected to the mounting plate (13).