Device for synchronously and annularly applying additional fertilizer during tobacco seedling transplanting

Abstract

The device comprises a moving trolley which stretches across tobacco ridges and moves in the extending direction of the tobacco ridges, and a transplanting and fertilizing mechanism and a seedling containing disc used for containing tobacco seedlings are arranged on the front portion and the rear portion of the table top of the moving trolley in the moving direction respectively. The transplanting and fertilizing mechanism comprises a storage barrel and a seedling throwing pipe fixedly penetrating through the table top, and the outer wall of the bottom end of the seedling throwing pipe is axially and slidably sleeved with a seedling protecting pipe; the outside of the seedling protecting pipe is rotatably connected with a fertilizing pipe group, the fertilizing pipe group is fixedly arranged on an adjusting plate below the table top in a penetrating manner and is connected with the bottom of the storage barrel through a feeding pipe, one end of the adjusting plate is connected with the output end of an electric sliding rail, and a rail part of the electric sliding rail is fixedly arranged on the moving trolley. The device is simple in structure, slow-release fertilizer is annularly applied to the peripheries of tobacco holes while tobacco seedlings are transplanted, the number of times of later topdressing can be effectively reduced, meanwhile, the fertilizer is evenly applied, and fertility can be effectively supplied to tobacco plant roots.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco planting, in particular to a device for synchronously applying topdressing in an annular manner during tobacco seedling transplanting. Background Art

[0002] Before transplanting tobacco seedlings, base fertilizer needs to be applied in the opened tobacco holes to provide corresponding nutrients for the subsequent growth of tobacco seedlings. At the same time, multiple topdressing operations are required during the tobacco seedling clumping period. However, in actual applications, topdressing operations generally involve applying dry fertilizer to one side of the root of the tobacco plant. On the one hand, it is difficult to effectively release the fertilizer, especially since rainwater can easily wash away the fertilizer, and instead the fertilizer will act on the weeds in the ridges and on the sides of the ridges. On the other hand, the fertilizer is applied to one side of the root of the tobacco plant, which results in the roots far away from the fertilization point being unable to fully absorb the fertilizer. At the same time, multiple topdressing not only increases labor costs, but also requires bending over to apply fertilizer to prevent the fertilizer from touching the leaves as much as possible, making the overall topdressing process more cumbersome. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a device for applying topdressing in a circular manner while transplanting tobacco seedlings. The device has a simple structure and can apply slow-release fertilizer in a circular manner to the periphery of the tobacco hole while the tobacco seedlings are transplanted, which can effectively reduce the number of topdressing times in the later stage. At the same time, the fertilizer is applied evenly and the fertility can be effectively supplied to the roots of the tobacco plants.

[0004] To achieve the above object, the present invention provides the following technical solutions: A device for transplanting tobacco seedlings and applying topdressing in a synchronous circular manner comprises a mobile vehicle that crosses tobacco ridges and moves along the extending direction of the tobacco ridges, and a transplanting and fertilizing mechanism and a seedling tray for placing tobacco seedlings are respectively arranged at the front and rear of the table surface of the mobile vehicle in the moving direction, the transplanting and fertilizing mechanism comprises a material storage barrel and a seedling placing tube that is fixedly arranged through the table surface, and a seedling protection tube is axially slidably sleeved on the outer wall of the bottom end of the seedling placing tube; The outside of the seedling protection tube is rotatably connected to the fertilizer pipe group, the fertilizer pipe group is fixedly installed on the adjustment plate under the table and is connected to the bottom of the storage barrel through the feed pipe, one end of the adjustment plate is connected to the output end of the electric slide rail, and the track portion of the electric slide rail is fixedly installed on the mobile vehicle.

[0005] Preferably, the fertilizer pipe group includes an outer pipe and an inner pipe which are coaxially sleeved, the inner wall of the inner pipe is rotatably connected with the seedling protection pipe through a bearing, an assembly ring is fixed on the outer wall of the bottom end of the inner pipe, and the assembly ring is assembled with a preset groove on the inner wall of the outer pipe to realize the rotatable connection between the inner pipe and the outer pipe; The outer wall of the outer tube is fixed on the adjustment plate and a motor is arranged on the outer wall at the top of the outer tube. A first gear is arranged at the output end of the motor. The first gear is meshed with a second gear arranged on the outer wall at the top of the inner tube for transmission.

[0006] Preferably, the feed pipe is a hard pipe structure and the outlet of the feed pipe protrudes into the gap from the gap at the top of the outer pipe and the inner pipe.

[0007] Preferably, a plurality of radially extending breaking blocks are fixedly provided on the outer wall of the inner tube below the feed tube, and the breaking blocks are tapered toward the end of the outer tube.

[0008] Preferably, a plurality of notches are provided at equal intervals on the ring surface of the assembly ring, and a plurality of discharge pipes are provided below the assembly ring. The discharge pipes are arc-shaped, and the top inlet fixed cover is provided at the corresponding notch, and the bottom outlet is provided horizontally.

[0009] Preferably, the bottom surface of the assembly ring is also provided with a plurality of brackets, the brackets and the discharge pipes are arranged alternately and a soil-moving piece is rotatably provided at the bottom of the brackets.

[0010] Preferably, the soil-moving member comprises a rotating shaft rotatably arranged on the bracket and soil-moving plates axially arranged at equal intervals on the outer wall of the rotating shaft, and the low point of the soil-moving plates is lower than the low point of the discharge pipe.

[0011] Preferably, the outer wall of the seedling casting tube is symmetrically provided with two fixing frames, the fixing frames are provided with a deceleration component, and the deceleration component penetrates into the seedling casting tube through a preset notch on the tube body of the seedling casting tube.

[0012] Preferably, the deceleration assembly comprises two upper and lower mounting seats, a pin is rotatably provided on the mounting seat, a tensioning wheel is sleeved on the pin, and the tensioning wheels on the two mounting seats tension the annular deceleration belt.

[0013] Preferably, a sliding rod is fixedly provided on the side of the mounting seat away from the speed bump, the sliding rod is provided with a limiting flange after passing through the fixing frame, and a return spring is sleeved on the outside of the sliding rod between the mounting seat and the fixing frame.

[0014] The working principle of the present invention is as follows: By pushing the moving vehicle to move along the smoke ridge, when the seedling protection tube moves to the smoke hole, the output end of the electric slide rail is controlled to move downward, thereby driving the adjustment plate and the corresponding outer tube, inner tube and seedling protection tube to move downward relative to the seedling casting tube until the soil-moving piece contacts the soil outside the smoke hole.

[0015] Then take a tobacco seedling from the seedling tray and throw it into the seedling tube. After passing through the seedling tube and the seedling protection tube, the tobacco seedling falls into the tobacco hole. At the same time, when passing through the speed bump, the tobacco seedling rubs against the speed bump (the initial leaf friction of the tobacco seedling will not affect its growth, and these leaves will fall off and grow again in the later stage), thereby reducing its own falling speed and reducing the impact effect of the tobacco seedling after falling into the tobacco hole, thereby preventing the rhizosphere soil at the bottom of the tobacco seedling (i.e., the matrix that the roots grasp during the seedling raising process) from being too loose. If the tobacco seedling is well developed, that is, the volume is larger than the initial gap between the two speed bumps, it can squeeze the two speed bumps under the action of its own weight to complete the passage. Of course, the stiffness coefficient of the reset spring is small, and its function is to ensure that the speed bump can effectively contact the tobacco seedling.

[0016] The motor is turned on, and the motor drives the second gear and the inner tube to rotate relative to the seedling protection tube and the outer tube through the first gear. At the same time, the feed pipe guides the slow-release fertilizer (i.e., carbon-based fertilizer mixed with biochar) in the storage barrel into the gap between the inner tube and the outer tube. As the inner tube rotates, it uses the crushing blocks to hit and crush the slow-release fertilizer to prevent the slow-release fertilizer from agglomerating due to moisture and accumulating large particles or even failing to fall smoothly. Finally, the slow-release fertilizer enters the discharge tube through the notch on the assembly ring, and is thrown out from the outlet of the discharge tube under the action of centrifugation, and then distributed in a ring on the soil around the smoke hole.

[0017] At the same time, the assembly ring will also rotate synchronously with the soil-moving piece, driving the soil through the soil-moving plate to cover the slow-release fertilizer and prevent it from being lost under the action of rainwater.

[0018] After completing the current smoke hole operation, stop the motor and control the adjustment plate to reset, then move to the next smoke hole to perform the same operation. When the assembly ring stops rotating, the slow-release fertilizer inside will not flow out because the outlet of the discharge pipe extends horizontally.

[0019] The slow-release fertilizer of the present invention is a commercially available carbon-based fertilizer, which has the characteristic of slowly releasing fertility, thereby providing a later topdressing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the device described in the specific implementation mode; Figure 2 It is a schematic diagram of the structure below the tabletop described in the specific implementation method; Figure 3 This is a schematic diagram of the structure of the gap between the inner tube and the outer tube according to the specific implementation method; Figure 4 It is a structural schematic diagram of the assembly ring described in the specific implementation method; Figure 5 It is a schematic diagram of the internal structure of the seedling planting tube described in the specific implementation method; Figure 6 It is a schematic structural diagram of the speed bump described in the specific implementation method. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] like Figure 1-6 As shown, a device for transplanting tobacco seedlings and applying topdressing in a synchronous circular manner comprises a mobile vehicle 1 which crosses tobacco ridges and moves along the extending direction of the tobacco ridges. A transplanting and fertilizing mechanism and a seedling tray 12 for placing tobacco seedlings are respectively arranged at the front and rear of a table 11 of the mobile vehicle 1 in the moving direction. The transplanting and fertilizing mechanism comprises a material storage barrel 2 and a seedling tube 3 which is fixedly arranged through the table 11. Two fixing frames 32 are symmetrically arranged at the outer wall of the seedling tube 3 below the table 11. Mounting seats 33 are arranged at the upper and lower sides of the fixing frames 32 facing the seedling tube 3. A pin shaft 34 is rotatably provided on the mounting seat 33, and a tensioning wheel 35 is sleeved on the pin shaft 34. The tensioning wheels 35 on the two mounting seats 33 tension the annular speed reduction belt 36, and the belt body of the speed reduction belt 36 away from the mounting seat 33 is disposed in the seedling tube 3 through a preset notch on the seedling tube 3; a sliding rod 37 is fixedly provided on the side of the mounting seat 32 away from the speed reduction belt 36, and a limiting flange 38 is provided after the sliding rod 37 passes through the fixing frame 32, and a reset spring 39 is sleeved on the outside of the sliding rod 37 between the mounting seat 33 and the fixing frame 32.

[0023] The outer wall of the bottom end of the seedling tube 3 is axially slidably sleeved with a seedling protection tube 31, and the outer part of the seedling protection tube 31 is coaxially sleeved with an inner tube 42 and an outer tube 41 in sequence. The inner wall of the inner tube 42 is rotatably connected with the seedling protection tube 31 through a bearing. An assembly ring 43 is fixedly arranged on the outer wall of the bottom end of the inner tube 42. The assembly ring 43 is assembled with a preset groove on the inner wall of the outer tube 41 to realize the rotatable connection between the inner tube 42 and the outer tube 41. The outer wall of the outer tube 41 is fixedly penetrated on the adjustment plate 13 located below the table 11. One end of the adjustment plate 13 is connected to the output end of the electric slide rail 14. The track portion of the electric slide rail 14 is fixedly arranged on the mobile vehicle 1. The ring surface of the assembly ring 43 is provided with a plurality of notches at equal intervals, and a plurality of discharge pipes 48 are provided below the assembly ring 43. The discharge pipes 48 are in the shape of an arc tube, and the top inlet fixed cover is provided at the corresponding notch, and the bottom outlet is provided horizontally; the bottom surface of the assembly ring 43 is also provided with a plurality of brackets, and the brackets and the discharge pipes 48 are arranged alternately, and a soil expelling member 49 is rotatably provided at the bottom of the brackets, and the soil expelling member 49 includes a rotating shaft rotatably provided on the bracket and a soil expelling plate axially provided at equal intervals on the outer wall of the rotating shaft, and the low point of the soil expelling plate is lower than the low point of the discharge pipe 48; A motor 44 is disposed on the top outer wall of the outer tube 41, and a first gear 45 is disposed at the output end of the motor 44. The first gear 45 is meshed with a second gear 46 disposed on the top outer wall of the inner tube 42 for transmission. A feed pipe 21 is connected to the bottom of the storage barrel 2. The feed pipe 41 is a hard tube structure and the outlet of the feed pipe 41 extends into the gap from the top gap between the outer tube 41 and the inner tube 42. The inner tube 42 is fixed with several radially extending crushing blocks 47 on the outer wall below the feed pipe 41. The crushing blocks 47 are tapered toward the end of the outer tube 21.

[0024] The working principle of the present invention is as follows: By pushing the moving vehicle 1 to move along the smoke ridge, when the seedling protection tube 31 moves to the smoke hole, the output end of the electric slide rail 14 is controlled to move downward, thereby driving the adjustment plate 13 and the corresponding outer tube 41, inner tube 42 and seedling protection tube 31 to move downward relative to the seedling casting tube 3 until the soil-moving piece 49 contacts the soil outside the smoke hole.

[0025] Then, a tobacco seedling is taken from the seedling tray 12 and thrown into the seedling tube 3. After passing through the seedling tube 3 and the seedling protection tube 31, the tobacco seedling falls into the tobacco hole. At the same time, when passing through the speed bump 36, the tobacco seedling rubs against the speed bump 36 (the initial leaf friction of the tobacco seedling will not affect its growth, and these leaves will fall off and grow again in the later stage), thereby reducing its own falling speed and reducing the impact effect of the tobacco seedling after falling into the tobacco hole, thereby preventing the rhizosphere soil at the bottom of the tobacco seedling (i.e., the matrix that the roots grasp during the seedling raising process) from being too loose. If the tobacco seedling is well developed, that is, the volume is larger than the initial gap between the two speed bumps 36, it can squeeze the two speed bumps 36 under the action of its own weight to complete the passage. Of course, the stiffness coefficient of the reset spring 39 is small, and its function is to ensure that the speed bump 36 can effectively contact the tobacco seedling.

[0026] The motor 44 is turned on. The motor 44 drives the second gear 46 and the inner tube 42 to rotate relative to the seedling protection tube 31 and the outer tube 41 through the first gear 45. At the same time, the feed pipe 41 introduces the slow-release fertilizer (i.e., the carbon-based fertilizer mixed with biochar) in the storage barrel 2 into the gap between the inner tube 42 and the outer tube 41. As the inner tube 42 rotates, it uses the crushing block 47 to hit and crush the slow-release fertilizer to prevent the slow-release fertilizer from agglomerating due to moisture and presenting large particles that cannot even fall smoothly. Finally, the slow-release fertilizer enters the discharge pipe 48 through the notch on the assembly ring 43, and is thrown out from the outlet of the discharge pipe 48 under the action of centrifugation, and then presents a ring-shaped distribution on the soil around the smoke hole.

[0027] At the same time, the assembly ring 43 will also rotate synchronously with the soil-moving member 49, driving the soil through the soil-moving plate to cover the slow-release fertilizer to prevent it from being lost under the action of rainwater.

[0028] After finishing the current smoke pit operation, stop the motor 44 to rotate, and control the adjusting plate 13 to reset, and can move to the next smoke pit place and carry out the same operation. When the assembly ring 43 stops rotating, because the outlet of the discharge pipe 48 is horizontal to extension, the slow-release fertilizer inside can not flow out.

[0029] The slow-release fertilizer of the present invention is a commercially available carbon-based fertilizer, which has the characteristic of slowly releasing fertility, thereby providing a later topdressing effect.

Claims

1. A device for transplanting tobacco seedlings and applying topdressing in a circular manner synchronously, comprising a mobile vehicle (1) that crosses tobacco ridges and moves along the extending direction of the tobacco ridges, and a transplanting and fertilizing mechanism and a seedling tray (12) for placing tobacco seedlings are respectively provided on the table (11) of the mobile vehicle (1) in front and rear of the moving direction, characterized in that: The transplanting and fertilizing mechanism comprises a material storage barrel (2) and a seedling planting tube (3) fixedly arranged to penetrate the table top (11); a seedling protection tube (31) is axially slidably sleeved on the outer wall of the bottom end of the seedling planting tube (3); The outside of the seedling protection tube (31) is rotatably connected to a fertilizer tube group, the fertilizer tube group is fixedly installed on an adjustment plate (13) below the table (11) and is connected to the bottom of the storage barrel (2) through a feed pipe (21), one end of the adjustment plate (13) is connected to the output end of an electric slide rail (14), and the track portion of the electric slide rail (14) is fixedly installed on the mobile vehicle (1).

2. The device for applying topdressing in a synchronous circular manner during transplantation of tobacco seedlings according to claim 1, characterized in that: The fertilizer pipe assembly comprises an outer pipe (41) and an inner pipe (42) which are coaxially sleeved, the inner wall of the inner pipe (42) being rotatably connected to the seedling protection pipe (31) via a bearing, an assembly ring (43) being fixedly arranged on the outer wall of the bottom end of the inner pipe (42), the assembly ring (43) being assembled with a preset groove on the inner wall of the outer pipe (41) to realize the rotatable connection between the inner pipe (42) and the outer pipe (41); The outer wall of the outer tube (41) is fixedly mounted on the adjustment plate (13), and a motor (44) is provided on the top outer wall of the outer tube (41). A first gear (45) is provided at the output end of the motor (44), and the first gear (45) is meshed with a second gear (46) provided on the top outer wall of the inner tube (42) for transmission.

3. The device for synchronously applying topdressing in an annular manner during transplantation of tobacco seedlings as claimed in claim 2, characterized in that: The feed pipe (41) is a hard pipe structure, and the outlet of the feed pipe (41) protrudes into the gap from the top gap between the outer pipe (41) and the inner pipe (42).

4. The device for applying topdressing in a synchronous circular manner during transplantation of tobacco seedlings as claimed in claim 3, characterized in that: A plurality of radially extending crushing blocks (47) are fixedly provided on the outer wall of the inner tube (42) below the feed tube (41), and the ends of the crushing blocks (47) facing the outer tube (21) are tapered.

5. The device for applying topdressing in a synchronous circular manner during transplantation of tobacco seedlings as claimed in claim 2, characterized in that: The ring surface of the assembly ring (43) is provided with a plurality of notches at equal intervals, and a plurality of discharge pipes (48) are provided below the assembly ring (43). The discharge pipes (48) are in an arc tube shape, with a top inlet fixed cover provided at the corresponding notch and a bottom outlet provided horizontally.

6. The device for applying topdressing in a synchronous circular manner during transplantation of tobacco seedlings as claimed in claim 5, characterized in that: The bottom surface of the assembly ring (43) is also provided with a plurality of brackets, the brackets and the discharge pipes (48) are arranged in a staggered manner, and a soil expelling piece (49) is rotatably provided at the bottom of the brackets.

7. The device for applying topdressing in a synchronous circular manner during transplantation of tobacco seedlings as claimed in claim 6, characterized in that: The soil-moving member comprises a rotating shaft rotatably arranged on a bracket and soil-moving plates axially arranged at equal intervals on the outer wall of the rotating shaft, wherein the low point of the soil-moving plates is lower than the low point of the discharge pipe (48).

8. The device for applying topdressing in a synchronous circular manner during transplantation of tobacco seedlings as claimed in claim 2, characterized in that: The outer wall of the seedling planting tube (3) is further symmetrically provided with two fixing frames (32), on which a deceleration component is provided, and the deceleration component penetrates into the interior of the seedling planting tube (3) through a preset notch on the tube body of the seedling planting tube (31).

9. The device for applying topdressing in a synchronous circular manner during transplantation of tobacco seedlings as claimed in claim 8, characterized in that: The deceleration assembly comprises two upper and lower mounting seats (33), a pin shaft (34) is rotatably provided on the mounting seat (33), a tensioning wheel (35) is sleeved on the pin shaft (34), and the tensioning wheels (35) on the two mounting seats (33) tension the annular deceleration belt (36).

10. The device for synchronously applying topdressing in an annular manner during transplantation of tobacco seedlings as claimed in claim 9, characterized in that: A sliding rod (37) is fixedly provided on one side of the mounting seat (32) away from the speed bump (36); a limiting flange (38) is provided on the sliding rod (37) after passing through the fixing frame (32); and a return spring (39) is sleeved on the outside of the sliding rod (37) between the mounting seat (33) and the fixing frame (32).

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