Automatic seedling taking and throwing device for tobacco transplanting

Abstract

The utility model discloses an automatic seedling taking and throwing device for tobacco transplanting. The automatic seedling taking and throwing device comprises an automatic seedling taking rack, a seedling taking displacement mechanism, a seedling transplanting mechanism and a seedling cup conveying mechanism, the automatic seedling taking rack comprises a left cross rod, a right cross rod, a left connecting rod, a right connecting rod, a first supporting column and a second supporting column, and the seedling transplanting mechanism comprises a first mounting column, a second mounting column, a third mounting column, a fourth mounting column, a left seedling transplanting sliding rail and a right seedling transplanting sliding rail. The seedling taking displacement mechanism comprises a fixing frame, a first mounting plate, a seedling pulling cylinder, a displacement sliding rail, a displacement sliding block, a displacement cylinder, a second mounting plate, a seedling taking clamping jaw, a turnover cylinder, a guide rail mounting seat, a clamping jaw connecting rod, a seedling pulling guide rail and a guide rail fixing block; the automation degree of the device is greatly improved, and the technical problems that an existing device is low in reliability, low in automation degree and poor in adaptability are effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco transplanting, and particularly relates to an automatic tobacco seedling picking and planting device. Background Art

[0002] Tobacco is an annual herbaceous plant. As an economic crop with huge economic benefits, it has an extremely wide planting range. The annual tobacco planting area in China is more than 1000 thousand hectares. The main way of tobacco planting is seedling raising and transplanting. Tobacco transplanting means planting the tobacco seedlings raised in the greenhouse in the field at the appropriate temperature in early spring. Appropriate tobacco transplanting is beneficial to the later development of tobacco and can improve the quality and yield of tobacco.

[0003] The Chinese invention patent application with the publication number of CN116711517A discloses a transplanter and its whole-row automatic seedling picking device and method. The transplanter includes a whole-row automatic seedling picking device, which includes: a frame installed on the chassis of the transplanter; a seedling supply mechanism installed on the frame; a seedling separating mechanism corresponding to the seedling supply mechanism and installed on the top of the frame. A plurality of seedling picking mechanisms are connected to the seedling separating mechanism. The seedling separating mechanism controls the plurality of seedling picking mechanisms to respectively have a retracted position and an extended position; a seedling pushing mechanism corresponding to the seedling picking mechanism is arranged below the seedling supply mechanism; a controller installed on the frame and respectively connected to the seedling supply mechanism, the seedling pushing mechanism, the seedling picking mechanism and the seedling separating mechanism; and a position sensor installed on the frame and connected to the controller for transmitting the detected position signals of the seedling supply mechanism and the seedling pushing mechanism to the controller. After analysis and judgment by the controller, it controls the seedling supply mechanism, the seedling pushing mechanism, the seedling picking mechanism and the seedling separating mechanism to move orderly. However, the layout of this transplanter is unreasonable, resulting in a high failure rate during the transplanting process. Therefore, an automatic tobacco seedling picking and planting device with high automation and low failure rate is needed. Summary of the Utility Model

[0004] The utility model aims to solve the deficiencies in the prior art and provides an automatic tobacco seedling picking and planting device with high automation and low failure rate.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: The automatic tobacco seedling picking and planting device includes an automatic seedling picking frame, a seedling picking position changing mechanism and a seedling transplanting mechanism; the automatic seedling picking frame includes a left cross bar, a right cross bar, left and right connecting rods, a first support column and a second support column. The left end of the left and right connecting rods is connected to the left cross bar, the right end of the left and right connecting rods is connected to the right cross bar, and the tops of the first support column and the second support column are both connected to the left and right connecting rods.

[0006] The seedling moving mechanism comprises a first mounting post, a second mounting post, a third mounting post, a fourth mounting post, a left seedling moving rail, and a right seedling moving rail. The first mounting post and the second mounting post are arranged at both ends of the left cross bar, the third mounting post and the fourth mounting post are arranged at both ends of the right cross bar, the left seedling moving rail is installed between the first mounting post and the second mounting post, the front end of the left seedling moving rail is connected to the first mounting post, the rear end of the left seedling moving rail is connected to the second mounting post, the right seedling moving rail is installed between the third mounting post and the fourth mounting post, the front end of the right seedling moving rail is connected to the fourth mounting post, and the rear end of the right seedling moving rail is connected to the third mounting post;

[0007] The seedling removal displacement mechanism comprises a fixed frame, a first mounting plate, a seedling removal cylinder, a displacement slide rail, a displacement slider, a displacement cylinder, a second mounting plate, a seedling removal clamp, a turning cylinder, a guide rail mounting seat, a clamp connecting rod, a seedling removal guide rail, and a guide rail fixing block; the left end of the first mounting plate is connected to the left seedling removal slider, the right end of the first mounting plate is connected to the right seedling removal slider, the left seedling removal slider is slidably mounted on the left seedling removal slide rail, the right seedling removal slider is slidably mounted on the right seedling removal slide rail, the seedling removal cylinder is mounted in the middle of the first mounting plate, and two cylinders are respectively mounted on both sides of the seedling removal cylinder. The lifting of the seedling guide rail is carried out under the effect of the lifting of the guide rail and the lifting of the seedling guide rail. The lifting of the seedling guide rail is carried out under the effect of the lifting of the guide rail. The lifting of the seedling guide rail is carried out under the effect of the lifting of the guide rail.

[0008] A cylinder mounting plate is arranged between the first mounting column and the fourth mounting column, and a seedling transplanting cylinder arranged in front and behind is installed on the cylinder mounting plate, and a push rod of the seedling transplanting cylinder is connected to the first mounting plate.

[0009] The first mounting column, the second mounting column, the third mounting column and the fourth mounting column are all provided with a height adjustment component, the height adjustment component includes a height adjustment mounting seat, a height adjustment screw, and a height adjustment sliding sleeve, the height adjustment screw is installed on the height adjustment mounting seat, and the side of the height adjustment sliding sleeve is extended with a first ear plate and a second ear plate that are symmetrical and parallel to each other in the upper and lower directions, the height adjustment screw passes through the first ear plate and the second ear plate in sequence, and is fixed by an adjusting nut.

[0010] On the right side of the seedling pulling cylinder, there is a first reversing valve and a cylinder trigger plate installed on the first mounting plate. On the left side of the seedling pulling cylinder, there is a second reversing valve installed on the first mounting plate. On the second mounting post, there is a third reversing valve. On the left seedling moving slider, there is a first trigger plate corresponding to the third reversing valve. Above the seedling moving cylinder, there is a fourth reversing valve installed on the cylinder mounting plate. On the third mounting post, there is a first travel switch. On the right seedling moving slider, there is a second trigger plate corresponding to the first travel switch.

[0011] On the tipping cylinder, there is an oil pressure adjusting bolt. On the upper and lower sides of the displacement slide rail, there is a horizontally arranged displacement cylinder installed respectively through mounting bolts. The push rod of the upper displacement cylinder is connected to the leftmost second mounting plate, and the push rod of the lower displacement cylinder is connected to the rightmost second mounting plate.

[0012] The seedling cup conveying mechanism includes a seedling cup tray, seedling cup sprockets, seedling cup chains, seedling cups, a second travel switch, and a third trigger plate. The inner side of the seedling cup is connected to the seedling cup chain through a seedling cup mounting plate. There are at least four seedling cup sprockets arranged on the seedling cup tray. The seedling cup chains are drivingly connected to the seedling cup sprockets. A third trigger plate is installed on every eight seedling cups. A second travel switch corresponding to the third trigger plate is installed on the seedling cup tray.

[0013] When the automatic seedling picking device of the present application picks seedlings, the tipping cylinder drives the seedling picking jaws to lift upwards, making the seedling picking jaws parallel to the plug tray. The flexible fingers of the seedling picking jaws can closely adhere to the upper surface of the plug tray to clamp the root stalks of the plug seedlings, reducing the damage to the plug seedlings. When picking seedlings, the seedling picking jaws arrive first and closely adhere to the plug tray. The plug tray conveys one downwards, sending the whole row of plug seedlings between the seedling picking jaws, clamping the root stalks of the plug seedlings, and then using the seedling pulling cylinder to pull the plug seedlings out of the plug tray, reducing the influence of interference of the plug seedling leaves. When throwing seedlings, the tipping cylinder acts to make the seedling picking jaws change from the lifted state to a state slightly inclined downwards horizontally, throwing the seedlings out, effectively preventing the seedling picking jaws from hanging seedlings. The seedling picking displacement mechanism is arranged opposite to the plug tray to be picked in the front and back direction, and their relative positions, heights, angles, etc. can all be adjusted, improving the adaptability of the present application.

[0014] In summary, the operation of the present invention is simple, the applicability is strong, the layout is reasonable, the failure rate is low, and the reliability is strong. The automatic seedling picking device clamps the whole row of plug seedlings and pulls the whole row of plug seedlings out of the plug tray, and then throws the plug seedlings into the corresponding seedling cups after pulling out, greatly improving the automation degree of the device and effectively solving the technical problems of low reliability, low automation degree, and poor adaptability of the existing device. Brief Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model except for the seedling cup conveying mechanism;

[0016] Figure 2 is a schematic structural diagram of the seedling cup conveying mechanism of the present utility model;

[0017] Figure 3 is a structural schematic diagram of the height adjustment assembly of the present utility model;

[0018] Figure 4 is a structural schematic diagram of the seedling picking jaw of the present utility model;

[0019] Figure 5 is a structural schematic diagram of the seedling picking and displacement mechanism of the present utility model;

[0020] Figure 6 is a structural schematic diagram of the seedling transplanting mechanism of the present utility model. Detailed implementation manners

[0021] As Figures 1-6 shown, the automatic seedling picking and transplanting device for tobacco transplanting of the present utility model includes an automatic seedling picking frame, a seedling picking and displacement mechanism 2, a seedling transplanting mechanism 1, and a seedling cup conveying mechanism 3; the automatic seedling picking frame includes a left cross bar 4, a right cross bar 5, left and right connecting rods 6, a first support column 7, and a second support column 8. The left end of the left and right connecting rods 6 is connected to the left cross bar 4, the right end of the left and right connecting rods 6 is connected to the right cross bar 5, and the tops of the first support column and the second support column are both connected to the left and right connecting rods 6.

[0022] The seedling transplanting mechanism 1 includes a first mounting column 9, a second mounting column 10, a third mounting column 11, a fourth mounting column 35, a left seedling transplanting slide rail 12, and a right seedling transplanting slide rail 13. The first mounting column 9 and the second mounting column 10 are arranged at both ends of the left cross bar 4, the third mounting column 11 and the fourth mounting column 35 are arranged at both ends of the right cross bar 5. The left seedling transplanting slide rail 12 is installed between the first mounting column 9 and the second mounting column 10. The front end of the left seedling transplanting slide rail 12 is connected to the first mounting column 9, and the rear end of the left seedling transplanting slide rail 12 is connected to the second mounting column 10. The right seedling transplanting slide rail 13 is installed between the third mounting column 11 and the fourth mounting column 35. The front end of the right seedling transplanting slide rail 13 is connected to the fourth mounting column 35, and the rear end of the right seedling transplanting slide rail 13 is connected to the third mounting column 11; (in the figure, the positions of the first mounting column 9, the second mounting column 10, the third mounting column 11, and the fourth mounting column 35 have been changed)

[0023] The seedling-taking position-changing mechanism 2 includes a fixed frame 14, a first mounting plate 15, a seedling-pulling cylinder 16, a position-changing slide rail 17, a position-changing slide block 18, a position-changing cylinder 19, a second mounting plate 20, a seedling-taking jaw 21, a turning cylinder 22, a guide rail mounting seat 23, a jaw connecting rod 24, a seedling-pulling guide rail 25, and a guide rail fixing block 26; the left end of the first mounting plate 15 is connected to a left seedling-shifting slide block, the right end of the first mounting plate 15 is connected to a right seedling-shifting slide block, the left seedling-shifting slide block is slidably mounted on the left seedling-shifting slide rail 12, the right seedling-shifting slide block is slidably mounted on the right seedling-shifting slide rail 13, the seedling-pulling cylinder 16 is mounted in the middle of the first mounting plate 15, a guide rail fixing block 26 is mounted on each side of the seedling-pulling cylinder 16, the front end of the seedling-pulling guide rail 25 is slidably arranged in the guide rail fixing block 26, the rear end of the seedling-pulling guide rail 25 is connected to the fixed frame 14 through the guide rail mounting seat 23, the position-changing slide rail 17 is horizontally arranged left and right on the fixed frame 14, several position-changing slide blocks 18 are slidably arranged on the position-changing slide rail 17, the second mounting plate 20 is mounted on the position-changing slide block 18, the seedling-taking jaw 21 is mounted on the second mounting plate 20, the second mounting plates 20 are connected to each other through the jaw connecting rod 24, a turning cylinder 22 is arranged at each end of the fixed frame 14, the inner side of the turning cylinder 22 is connected to the fixed frame 14, and the outer side of the turning cylinder 22 is connected to the position-changing slide rail 17 through a slide rail connecting plate.

[0024] A cylinder mounting plate 27 is arranged between the first mounting column 9 and the fourth mounting column 35. A front-and-back arranged seedling-shifting cylinder 28 is mounted on the cylinder mounting plate 27, and the push rod of the seedling-shifting cylinder 28 is connected to the first mounting plate 15.

[0025] Height adjustment components are arranged on the first mounting column 9, the second mounting column 10, the third mounting column 11, and the fourth mounting column 35. The height adjustment components include a height adjustment mounting seat 29, a height adjustment screw 30, and a height adjustment sliding sleeve 31. The height adjustment sliding sleeve 31 is sleeved on the corresponding mounting column. The height adjustment screw 30 is mounted on the height adjustment mounting seat 29. First ear plates 32 and second ear plates 33 that are symmetric and parallel up and down are arranged on the side of the height adjustment sliding sleeve 31. The height adjustment screw 30 sequentially passes through the first ear plate 32 and the second ear plate 33 and is fixed through an adjustment nut 34.

[0026] On the right side of the seedling pulling cylinder 16, there are a first reversing valve 36 and a cylinder trigger plate 37 mounted on the first mounting plate 15. On the left side of the seedling pulling cylinder 16, there is a second reversing valve 38 mounted on the first mounting plate 15. On the second mounting post 10, there is a third reversing valve 39. On the left seedling shifting slider, there is a first trigger plate 40 corresponding to the third reversing valve 39. Above the seedling shifting cylinder 28, there is a fourth reversing valve 41 mounted on the cylinder mounting plate 27. On the third mounting post 11, there is a first travel switch 47. On the right seedling shifting slider, there is a second trigger plate 49 corresponding to the first travel switch 47. The seedling cup conveying mechanism 3 includes a seedling cup tray 42, a seedling cup sprocket 44, a seedling cup chain 45, a seedling cup 46, a second travel switch 48, and a third trigger plate 50. The inner side of the seedling cup 46 is connected to the seedling cup chain 45 through a seedling cup mounting plate. There are at least four seedling cup sprockets 44 provided on the seedling cup tray 42. The seedling cup chain 45 is drivingly connected to the seedling cup sprocket 44. A third trigger plate 50 is mounted on every eight seedling cups 46. A second travel switch 48 corresponding to the third trigger plate 50 is mounted on the seedling cup tray 42. When the third trigger plate 50 triggers the second travel switch 48, the seedling cup 46 is in place, the seedling picking gripper 21 is released, and the pot seedlings fall into the seedling cup 46. At this time, the seedling pulling cylinder 16 extends and waits for seedling pulling. The seedling cups 46 are arranged in an 8-4-8-4 arrangement to cooperate with the seedling picking gripper 21. The seedling throwing position of the seedling cup conveying mechanism 33 can be adjusted to ensure that the pot seedlings are conveyed to the designated position. And a third trigger plate 50 is mounted on every eight seedling cups 46. After eight seedling cups 46 are in place, the second travel switch 48 is triggered, and the seedling picking gripper 21 releases the seedlings into the seedling cup 46, and the mechanism runs stably and smoothly.

[0027] An oil pressure regulating bolt is provided on the tilting cylinder 22. Through it, the rotation angle of the tilting cylinder 22 can be adjusted to regulate the angle of the seedling picking gripper 21 to ensure its adaptation to the tilting angle of the plug tray and be able to grip the stem of the plug seedling near the substrate part, and play a buffering role in the movement of the mechanism. On the upper and lower sides of the displacement slide rail 17, a horizontally arranged displacement cylinder 19 is installed through mounting bolts respectively. The push rod of the upper displacement cylinder 19 is connected to the leftmost second mounting plate 20, and the push rod of the lower displacement cylinder 19 is connected to the rightmost second mounting plate 20. The main body width of the seedling picking gripper 21 is less than or equal to the hole spacing of the plug tray. The length of the fingers of the seedling picking gripper 21 is between half and one hole spacing, and the gripping surface of the fingers of the seedling picking gripper 21 is covered with a flexible material. The seedling picking and displacement mechanism 2 is responsible for pulling out the tobacco seedlings from the plug tray, and then expanding the spacing between adjacent tobacco seedlings to a suitable position (i.e., the center distance between adjacent seedling cups 46 is 127 mm); the seedling transplanting mechanism 1 has two functions. One is to move the tobacco seedlings picked by the seedling picking and displacement mechanism 2 directly above the seedling cup 46 and release the tobacco seedlings after the seedling cup 46 moves to a suitable position; the other is after a seedling picking process is completed, move the empty seedling picking and displacement mechanism 2 to a suitable seedling picking position for the next seedling picking process. When the first trigger plate touches the third reversing valve, it triggers the seedling picking gripper 21 to clamp the plug seedling; the seedling pulling cylinder 16 retracts to take out the plug seedling from the plug tray; when the seedling pulling cylinder 16 retracts, the cylinder trigger plate 37 triggers the first reversing valve 36 to make the displacement cylinder 19 extend, and at the same time the seedling transplanting cylinder 28 retracts. When the displacement cylinder 19 extends completely, the seedling transplanting cylinder 28 retracts completely, and then the spacing of the seedling picking gripper 21 holding the plug seedling is displaced to the spacing of the seedling cup 46 suitable for seedling dropping, realizing seedling transplanting and displacement. When the seedling cup 46 is in place, the third trigger plate 50 triggers the second travel switch 48, the tilting cylinder 22 is laid flat, the seedling picking gripper 21 is loosened, and the plug seedling falls into the seedling cup 46; after the third trigger plate 50 triggers the second travel switch 48, the seedling pulling cylinder 16 extends, triggering the first reversing valve 36 again, making the displacement cylinder 19 retract, gathering the seedling picking gripper 21, and displacing the spacing of the seedling picking gripper 21 to the spacing of the plug tray suitable for seedling picking, waiting for the next seedling picking and seedling dropping.

[0028] When the present application takes seedlings, the flipping cylinder 22 drives the seedling-taking gripper 21 to lift upward, making the seedling-taking gripper 21 parallel to the seedling tray. The flexible fingers of the seedling-taking gripper 21 can closely adhere to the upper surface of the seedling tray to clamp the root stalks of the plug seedlings, reducing the damage to the plug seedlings. When taking seedlings, the seedling-taking gripper 21 arrives first and closely adheres to the seedling tray. The seedling tray is conveyed downward by one grid, and the whole row of plug seedlings is sent between the fingers of the seedling-taking gripper 21. Then, the root stalks of the plug seedlings are clamped, and the seedling pulling cylinder 16 is used to pull the plug seedlings out of the seedling tray, reducing the influence of interference of the seedling leaves. When performing seedling throwing, the flipping cylinder 22 acts to make the seedling-taking gripper 21 change from the lifted state to slightly inclined downward horizontally, and the seedlings are thrown out, effectively preventing the seedling-taking gripper 21 from hanging seedlings; the seedling-taking displacement mechanism 2 is arranged opposite to the seedling tray to be taken in the front and back direction, and their relative positions, heights, angles, etc. can all be adjusted, improving the adaptability of the present application. The present invention is simple to operate, has strong applicability, reasonable layout, high automation degree, and strong reliability. The automatic seedling-taking device clamps the whole row of plug seedlings and pulls the whole row of plug seedlings out of the seedling tray, and then throws the plug seedlings into the corresponding seedling cups 46, greatly improving the automation degree of the device and effectively solving the technical problems of low reliability, low automation degree, and poor adaptability of the existing device.

[0029] This embodiment does not make any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model all belong to the protection scope of the technical solution of the present utility model.

Claims

1. An automatic tobacco transplanting seedling picking and placing device, characterized in that: It includes an automatic seedling picking frame, a seedling picking position changing mechanism, a seedling transplanting mechanism, and a seedling cup conveying mechanism; the automatic seedling picking frame includes a left cross bar, a right cross bar, left and right connecting rods, a first support column, and a second support column. The left end of the left and right connecting rods is connected to the left cross bar, the right end of the left and right connecting rods is connected to the right cross bar, and the tops of the first support column and the second support column are both connected to the left and right connecting rods; The seedling transplanting mechanism includes a first mounting column, a second mounting column, a third mounting column, a fourth mounting column, a left seedling transplanting slide rail, and a right seedling transplanting slide rail. The first mounting column and the second mounting column are arranged at both ends of the left cross bar, the third mounting column and the fourth mounting column are arranged at both ends of the right cross bar. The left seedling transplanting slide rail is installed between the first mounting column and the second mounting column. The front end of the left seedling transplanting slide rail is connected to the first mounting column, and the rear end of the left seedling transplanting slide rail is connected to the second mounting column. The right seedling transplanting slide rail is installed between the third mounting column and the fourth mounting column. The front end of the right seedling transplanting slide rail is connected to the fourth mounting column, and the rear end of the right seedling transplanting slide rail is connected to the third mounting column; The seedling picking position changing mechanism includes a fixed frame, a first mounting plate, a seedling pulling cylinder, a position changing slide rail, a position changing slider, a position changing cylinder, a second mounting plate, a seedling picking jaw, a flipping cylinder, a guide rail mounting seat, a jaw connecting rod, a seedling pulling guide rail, and a guide rail fixing block; the left end of the first mounting plate is connected to the left seedling transplanting slider, the right end of the first mounting plate is connected to the right seedling transplanting slider. The left seedling transplanting slider is slidably installed on the left seedling transplanting slide rail, and the right seedling transplanting slider is slidably installed on the right seedling transplanting slide rail. The seedling pulling cylinder is installed in the middle of the first mounting plate, and a guide rail fixing block is installed on each side of the seedling pulling cylinder. The front end of the seedling pulling guide rail is slidably arranged in the guide rail fixing block, and the rear end of the seedling pulling guide rail is connected to the fixed frame through the guide rail mounting seat. The position changing slide rail is horizontally arranged left and right on the fixed frame, and several position changing sliders are slidably arranged on the position changing slide rail. The second mounting plate is installed on the position changing slider, and the seedling picking jaw is installed on the second mounting plate. The second mounting plates are connected to each other through the jaw connecting rod. A flipping cylinder is arranged at each end of the fixed frame. The inner side of the flipping cylinder is connected to the fixed frame, and the outer side of the flipping cylinder is connected to the position changing slide rail through a slide rail connecting plate.

2. The automatic tobacco transplanting seedling picking and planting device according to claim 1, characterized in that: A cylinder mounting plate is arranged between the first mounting column and the fourth mounting column, and a front and rear arranged seedling transplanting cylinder is installed on the cylinder mounting plate. The push rod of the seedling transplanting cylinder is connected to the first mounting plate.

3. The tobacco transplanting automatic seedling picking and transplanting device according to claim 2, wherein: Height adjusting components are arranged on the first mounting column, the second mounting column, the third mounting column, and the fourth mounting column. The height adjusting component includes a height adjusting mounting seat, a height adjusting screw, and a height adjusting sliding sleeve. The height adjusting screw is installed on the height adjusting mounting seat. The side of the height adjusting sliding sleeve extends with symmetrically arranged and parallel first ear plates and second ear plates up and down. The height adjusting screw sequentially passes through the first ear plate and the second ear plate and is fixed through an adjusting nut.

4. The tobacco transplanting automatic seedling picking and planting device according to claim 3, characterized in that: On the right side of the seedling pulling cylinder, there are a first reversing valve and a cylinder trigger plate mounted on the first mounting plate. On the left side of the seedling pulling cylinder, there is a second reversing valve mounted on the first mounting plate. On the second mounting post, there is a third reversing valve. On the left seedling moving slider, there is a first trigger plate corresponding to the third reversing valve. Above the seedling moving cylinder, there is a fourth reversing valve mounted on the cylinder mounting plate. On the third mounting post, there is a first travel switch. On the right seedling moving slider, there is a second trigger plate corresponding to the first travel switch.

5. The tobacco transplanting automatic seedling picking and transplanting device according to claim 4, characterized in that: On the tipping cylinder, there is an oil pressure regulating bolt. On the upper and lower sides of the displacement slide rail, there is a horizontally arranged displacement cylinder each mounted through a mounting bolt. The push rod of the upper displacement cylinder is connected to the leftmost second mounting plate, and the push rod of the lower displacement cylinder is connected to the rightmost second mounting plate.

6. The automatic tobacco transplanting seedling picking and planting device according to claim 5, characterized in that: The seedling cup conveying mechanism includes a seedling cup tray, seedling cup sprockets, seedling cup chains, seedling cups, a second travel switch, and a third trigger plate; the inner side of the seedling cup is connected to the seedling cup chain through a seedling cup mounting plate. There are at least four seedling cup sprockets arranged on the seedling cup tray. The seedling cup chains are drivingly connected to the seedling cup sprockets. A third trigger plate is mounted on every eight seedling cups. On the seedling cup tray, there is a second travel switch corresponding to the third trigger plate.

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