Automatic seedling taking device of plug seedling transplanter

Abstract

The utility model discloses an automatic seedling taking device of a plug seedling transplanter, which comprises a mounting rack, a transmission component, a driving component and a seedling taking mechanical claw component, the driving component is mounted on the mounting rack, the transmission component is mounted on the mounting rack through a bearing seat, a roller I and a roller II in the transmission component are mounted between slideways of two base plates II of the mounting rack, and the seedling taking mechanical claw component is mounted on the mounting rack. And the seedling taking mechanical claw assembly is connected with the output shaft II and the rotating shaft I in the transmission assembly through bearings. The seedling-taking mechanical gripper is simple in structure, seedling-taking operation and seedling-throwing operation of the seedling-taking mechanical gripper are driven by one driving device, and manufacturing cost is reduced. The seedling taking needle base is installed on an automatic transplanting machine, and the requirements of automatic seedling taking and transplanting of seedling raising plates of different specifications can be met by adjusting the relative installation position and the included angle of the seedling taking needle base and the length of the seedling taking needle.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery, specifically relating to an automatic seedling picking device for a plug seedling transplanter. Background Technology

[0002] Seedling transplanting involves cultivating seedlings in plug trays in a greenhouse environment, then transplanting them to open fields or greenhouses using transplanting equipment. This method produces uniform seedlings with strong plants, allowing for earlier crop growth and development, increasing the multiple cropping index, reducing seedling loss, effectively minimizing the need for replanting in vegetable cultivation, significantly improving crop yield and quality, and enhancing farmers' economic benefits. It is currently the main method of vegetable production. However, most plug seedling transplanters in my country are currently semi-automatic, still requiring manual seedling handling. Their low level of automation and high labor intensity severely restrict the development of modern mechanized vegetable production in my country. Therefore, developing a fully automatic transplanter with automatic seedling handling and delivery functions is of great significance. Currently, most automatic transplanters use two separate drive systems for the seedling handling and delivery processes, resulting in high manufacturing costs, weak continuity of the handling and delivery actions, and poor stability, hindering the development of fully automatic transplanters. Utility Model Content

[0003] This invention addresses the problems existing in the prior art by providing an automatic seedling picking device for a plug seedling transplanter that requires only one drive unit and has high stability.

[0004] This utility model provides the following technical solution: an automatic seedling picking device for a plug seedling transplanter, comprising a mounting frame, a transmission assembly, a drive assembly, and a seedling picking mechanical claw assembly. The drive assembly is mounted on the mounting frame, the transmission assembly is mounted on the mounting frame via a bearing seat, and roller one and roller two in the transmission assembly are mounted between the slide rails of two base plates two of the mounting frame. The seedling picking mechanical claw assembly is connected to the output shaft two and the rotating shaft one in the transmission assembly via bearings.

[0005] Furthermore, the mounting frame includes a first substrate and two second substrates connected by copper pillars. A slide rail is provided on the second substrate to constrain the movement trajectory of the first and second rollers.

[0006] Furthermore, the drive assembly includes a stepper motor, a swivel coupling, and a stepper motor mounting base. The stepper motor mounting base is mounted on the base plate, the stepper motor is mounted on the stepper motor mounting base, and the stepper motor is connected to the swivel coupling.

[0007] Furthermore, the transmission assembly includes a bearing housing, which is mounted on a base plate one. The bearing housing is connected to an output shaft one via a bearing. The output shaft one and a stepper motor are connected via a perforated coupling. The output shaft one drives a swing arm to rotate via a key. The swing arm is connected to an intermediate shaft via a bearing. The intermediate shaft drives a rocker arm to move via a bearing. The rocker arm is connected to an output shaft two via a key. The output shaft two is connected to a seedling pusher cam via a key. The output shaft two has a roller one mounted on it via a bearing. The roller one and roller two are constrained by a slide rail on the base plate two and can only move along the slide rail direction. The roller two is connected to a rotating shaft one. The rotating shaft one and the output shaft two are connected to a seedling claw base via a bearing.

[0008] Furthermore, the seedling-picking mechanical claw assembly includes a seedling-picking claw base, on which two seedling-picking needle bases are mounted. Seedling-picking needles are mounted on the seedling-picking needle bases via set screws. The two seedling-picking needles have a certain angle between them to facilitate seedling picking. The seedling-picking claw base is fixed with two seedling-pushing ring bases by bolts. The seedling-pushing ring bases are equipped with seedling-pushing ring swing shafts, and the seedling-pushing ring swing shafts are equipped with two seedling-pushing ring swing plates. The distance between the two seedling-pushing ring swing plates is constrained by bushings. Each seedling-pushing ring swing plate is equipped with a torsion spring on its corresponding side of the seedling-pushing ring base to ensure that the seedling-pushing ring swing plate is in a certain position when not subjected to external force and to reset after the force is applied. The two seedling-pushing ring swing plates are equipped with a second rotating shaft, and the second rotating shaft is equipped with a swing bearing. The other end of the two seedling-pushing ring swing plates is connected to the two seedling-pushing rings via a third rotating shaft. The other end of the seedling-pushing rings is movably connected to the seedling-picking needles. When the seedling-pushing cam rotates and contacts the seedling-pushing bearing to apply pressure, the two seedling-pushing ring swing plates swing accordingly, driving the seedling-pushing rings to move towards the tip of the seedling-picking needle, thereby realizing seedling placement.

[0009] Furthermore, by adjusting the relative installation position and angle of the seedling needle base, as well as the length of the seedling needle, it is possible to adapt to the seedling removal operation on vegetable seedling trays of different specifications.

[0010] The beneficial effects of this utility model are:

[0011] This invention features a simple structure, integrating the seedling picking and dispensing operations of the mechanical claw with a single drive unit, thus reducing manufacturing costs. When installed on an automatic transplanter, this invention can adapt to the automatic seedling picking and transplanting requirements of seedling trays of different sizes by adjusting the relative installation position and angle of the seedling picking needle base, as well as the length of the seedling picking needle. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the drive component of this utility model.

[0014] Figure 3 This is a schematic diagram of the mounting bracket of this utility model.

[0015] Figure 4 This is a schematic diagram of the transmission component of this utility model.

[0016] Figure 5 This is a first-view schematic diagram of the seedling-picking mechanical claw assembly of this utility model.

[0017] Figure 6 This is a second-view schematic diagram of the seedling-picking mechanical claw assembly of this utility model.

[0018] In the diagram: 1. Drive assembly; 1-1. Stepper motor; 1-2. Clover coupling; 1-3. Stepper motor mounting base; 2. Mounting bracket; 2-1. Base plate two; 2-2. Copper pillar; 2-3. Slide rail; 2-4. Base plate one; 3. Transmission assembly; 3-1. Bearing housing; 3-2. Output shaft one; 3-3. Swing arm; 3-4. Intermediate shaft; 3-5. Rocker arm; 3-6. Roller one; 3-7. Output shaft two; 3-8. Push... 3-9. Seedling Cam; 3-10. Rotating Shaft 1; 3-10. Roller 2; 4. Seedling Picking Mechanical Claw Assembly; 4-1. Seedling Picking Claw Base; 4-2. Seedling Picking Needle Base; 4-3. Seedling Picking Needle; 4-4. Seedling Pushing Ring Base; 4-5. Rotating Shaft 3; 4-6. Seedling Pushing Ring; 4-7. Seedling Pushing Ring Swing Plate; 4-8. Torsion Spring; 4-9. Bushing; 4-10. Seedling Pushing Ring Swing Shaft; 4-11. Rotating Shaft 2; 4-12. Swing Bearing. Detailed Implementation

[0019] 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 now be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Please see Figure 1-6 An automatic seedling picking device for a plug seedling transplanter includes a drive assembly 1, a mounting frame 2, a transmission assembly 3, and a seedling picking mechanical claw assembly 4. The drive assembly 1 is mounted on the mounting frame 2, and the transmission assembly 3 is mounted on the mounting frame 1 via a bearing seat. Two rollers 3-6 and 3-10 in the transmission assembly 3 are mounted between the slide rails 2-3 of the two base plates 2-1 of the mounting frame 2. The seedling picking mechanical claw assembly 4 is connected to the output shaft 3-7 and the rotating shaft 3-9 in the transmission assembly 3 via bearings.

[0021] The mounting frame 2 includes a base plate 2-4 and two base plates 2-1. The three base plates are connected by copper pillars 2-2. A slide 2-3 is provided on the base plate 2-1 to constrain the movement trajectory of the rollers 3-6 and 3-10.

[0022] The drive assembly 1 includes a stepper motor 1-1, a swivel coupling 1-2, and a stepper motor mounting base 1-3. The stepper motor mounting base 1-3 is mounted on the base plate 2-4, the stepper motor 1-1 is mounted on the stepper motor mounting base 1-3, and the stepper motor 1-1 is connected to the swivel coupling 1-2.

[0023] The transmission assembly 3 includes a bearing housing 3-1, which is mounted on a base plate 2-4. The bearing housing 3-1 is connected to an output shaft 3-2 via a bearing. The output shaft 3-2 and the stepper motor 1-1 are connected via a perforated coupling 1-2. The output shaft 3-2 drives the swing arm 3-3 to rotate via a key. The swing arm 3-3 is connected to an intermediate shaft 3-4 via a bearing. The intermediate shaft 3-4 drives the rocker arm 3-5 via a bearing. The rocker arm 3-5 is connected to an output shaft 3-7 via a key. The output shaft 3-7 is connected to a seedling pusher cam 3-8 via a key. The output shaft 3-7 is fitted with a roller 3-6 via a bearing. The rollers 3-6 and 3-10 are constrained by a slide rail 2-3 on the base plate 2-1 and can only move along the slide rail 2-3. The roller 3-10 is connected to a rotating shaft 3-9. The rotating shaft 3-9 and the output shaft 3-7 are connected to a seedling claw base 4-1 via a bearing.

[0024] The seedling-picking mechanical claw assembly 4 includes a seedling-picking claw base 4-1, on which two seedling-picking needle bases 4-2 are mounted. Seedling needles 4-3 are mounted on the seedling needle bases 4-2 via set screws. The two seedling needles 4-3 have a certain angle between them for seedling picking. Two seedling-pushing ring bases 4-4 are fixed to the seedling-picking claw base 4-1 by bolts. A seedling-pushing ring swing shaft 4-10 is mounted on the seedling-pushing ring base 4-4. Two seedling-pushing ring swing plates 4-7 are mounted on the seedling-pushing ring swing shaft 4-10, and the distance between the two seedling-pushing ring swing plates 4-7 is constrained by a bushing 4-9. Each seedling-pushing ring swing plate 4-7 is mounted on a corresponding side of the seedling-pushing ring base 4-4. Equipped with a torsion spring 4-8, it ensures that the oscillating plate of the seedling pushing ring 4-6 is in a certain position when not subjected to external force, and resets after the force is applied. The two oscillating plates of the seedling pushing ring 4-7 are equipped with a rotating shaft 2 4-11, and the rotating shaft 2 4-11 is equipped with an oscillating bearing 4-12. The other end of the two oscillating plates of the seedling pushing ring 4-7 is connected to the two seedling pushing rings 4-6 through a rotating shaft 3 4-5. The other end of the seedling pushing ring 4-6 is fitted onto the seedling picking needle 4-3. When the seedling pushing cam 3-8 rotates, contacts the seedling pushing bearing 4-12 and applies pressure, the two oscillating plates of the seedling pushing ring 4-7 swing accordingly, and drive the seedling pushing ring 4-6 to move towards the tip of the seedling picking needle 4-3 to realize seedling placement.

[0025] By changing the relative installation position and angle of the seedling needle base 4-2, as well as the length of the seedling needle 4-3, the seedling taking operation of vegetable seedlings on seedling trays of different specifications can be adapted.

[0026] Working principle of this device: During operation, stepper motor 1-1 drives output shaft 3-2 to rotate, which in turn drives swing arm 3-3 to rotate. This, in turn, drives output shaft 3-7 to swing within a certain angle while moving with rocker arm 3-5. This, in turn, drives seedling pusher cam 3-8 to swing within a certain angle range. Rollers 3-6 and 3-10 reciprocate under the constraint of slide rail 2-3, driving seedling picking mechanical claw assembly 4 to move to the seedling picking position. During the time that seedling picking needle 4-3 picks up the seedling, the seedling pusher ring swing plate 4-7, under the action of torsion spring 4-8... The seedling pushing cam 3-8 will not rotate and will not contact the seedling pushing bearing 4-12. During the seedling placement process, the seedling pushing cam 3-8 will start to contact the seedling pushing bearing 4-12 and apply pressure, causing the two seedling pushing ring swing plates 4-7 to swing accordingly, and driving the seedling pushing ring 4-6 to move towards the tip of the seedling picking needle 4-3. The seedling pushing ring pushes the seedling on the seedling picking needle 4-3 to fall off, thus realizing the seedling placement. After the seedling placement is completed, the seedling pushing cam 3-8 will start to move away from the seedling pushing bearing 4-12 and the pressure will be removed. The seedling pushing ring swing plate 4-7 will reset under the action of the torsion spring 4-8, waiting for the next seedling picking and placement operation.

[0027] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. An automatic seedling picking device for a plug seedling transplanter, comprising a drive assembly (1), a mounting frame (2), a transmission assembly (3), and a seedling picking mechanical claw assembly (4), characterized in that: The drive assembly (1) is mounted on the mounting frame (2), the transmission assembly (3) is mounted on the mounting frame (2) via a bearing seat, the first roller (3-6) and the second roller (3-10) in the transmission assembly (3) are mounted between the slides (2-3) of the two base plates (2-1) of the mounting frame (2), and the seedling picking mechanical claw assembly (4) is connected to the output shaft (3-7) and the rotating shaft (3-9) in the transmission assembly (3) via bearings.

2. The automatic seedling picking device for a plug seedling transplanter according to claim 1, characterized in that: The mounting bracket (2) includes a base plate one (2-4) and two base plates two (2-1). The three base plates are connected by copper pillars (2-2). A slide (2-3) is provided on the base plate two (2-1) to constrain the movement trajectory of roller one (3-6) and roller two (3-10).

3. The automatic seedling-retrieving device for a plug seedling transplanter according to claim 1, characterized in that: The drive assembly (1) includes a stepper motor (1-1), a swivel coupling (1-2), and a stepper motor mounting base (1-3). The stepper motor mounting base (1-3) is mounted on the base plate (2-4), the stepper motor (1-1) is mounted on the stepper motor mounting base (1-3), and the stepper motor (1-1) is connected to the swivel coupling (1-2).

4. The automatic seedling-retrieving device for a plug seedling transplanter according to claim 1, characterized in that: The transmission assembly (3) includes a bearing housing (3-1), which is mounted on a base plate (2-4). The bearing housing (3-1) is connected to an output shaft (3-2) via a bearing. The output shaft (3-2) and a stepper motor (1-1) are connected via a perforated coupling (1-2). The output shaft (3-2) drives a swing arm (3-3) to rotate via a key. The swing arm (3-3) is connected to an intermediate shaft (3-4) via a bearing. The intermediate shaft (3-4) drives a rocker arm (3-5) to move via a bearing. Output shaft 2 (3-7) is connected by a key. Output shaft 2 (3-7) is connected by a key to push seedling cam (3-8). Roller 1 (3-6) is mounted on output shaft 2 (3-7) via bearing. Roller 1 (3-6) and roller 2 (3-10) are constrained by slide rail (2-3) on base plate 2 (2-1) and can only move along slide rail (2-3). Roller 2 (3-10) is connected to rotating shaft 1 (3-9). Rotating shaft 1 (3-9) and output shaft 2 (3-7) are connected to seedling claw base (4-1) via bearing.

5. The automatic seedling receiving device for a plug seedling transplanter according to claim 1, characterized in that: The seedling-picking mechanical claw assembly (4) includes a seedling-picking claw base (4-1), on which two seedling-picking needle bases (4-2) are mounted. Seedling needles (4-3) are mounted on the seedling-picking claw base (4-1) via set screws. The two seedling needles (4-3) have a certain included angle. Two seedling-pushing ring bases (4-4) are fixed to the seedling-picking claw base (4-1) by bolts. A seedling-pushing ring swing shaft (4-10) is mounted on the seedling-pushing ring base (4-4). Two seedling-pushing ring swing plates (4-7) are mounted on the seedling-pushing ring swing shaft (4-10) and connected via shafts. The sleeve (4-9) constrains the distance between the two seedling pushing ring swing plates (4-7). Each seedling pushing ring swing plate (4-7) and the corresponding seedling pushing ring base (4-4) are equipped with a torsion spring (4-8). The two seedling pushing ring swing plates (4-7) are equipped with a second rotating shaft (4-11). The second rotating shaft (4-11) is equipped with a swing bearing (4-12). The other end of the two seedling pushing ring swing plates (4-7) is connected to the two seedling pushing rings (4-6) through a third rotating shaft (4-5). The other end of the seedling pushing rings (4-6) is movably connected to the seedling picking needle (4-3).

6. The automatic seedling receiving device for a plug seedling transplanter according to claim 5, characterized in that: By changing the relative installation position and angle of the seedling needle base (4-2) and the length of the seedling needle (4-3), it is possible to adapt to the seedling taking operation of vegetable seedlings on seedling trays of different specifications.

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