A transplanting machine

Abstract

The present invention provides a transplanter, which aims to solve the problem of low efficiency of transplanting operations caused by the transplanter in the prior art being only equipped with a separate tray for holding seedlings. A transplanter comprises a frame, at least one side of which is provided with a tray mechanism for holding seedlings; the tray mechanism comprises a mounting frame connected to the frame, a plurality of square trays, a drive rod, a guide rod, and a drive assembly for driving the drive rod to rotate; the drive rod is rotatably arranged on the mounting frame, and the drive rod comprises a threaded section on the lower side and a smooth section on the upper side, and each of the square trays is threadedly connected to the threaded section of the drive rod; the guide rod is fixedly arranged on the mounting frame and parallel to the drive rod, and each of the square trays is slidably connected to the guide rod. The present invention can load more seedlings at a time, thereby making the work more efficient.

Description

Technical Field

[0001] The invention belongs to the technical field of seedling transplanting machines, and particularly relates to a transplanting machine. Background Art

[0002] Transplanting is a crucial step in the operation of a seedling nursery system. Transplanting aims to ensure adequate growth space for seedlings by moving them from high-density plug trays to low-density fields. This ensures adequate growth and protects the seedlings from natural disasters such as drought and frost damage during the seedling raising period. However, current seedling transplanting machines only have a single tray for holding the seedlings. Because a single tray cannot hold enough seedlings, operators must stop and return to retrieve the seedlings during the transplanting operation, which is very troublesome and leads to low transplanting efficiency. Summary of the Invention

[0003] The present invention provides a transplanter, which aims to solve the problem that the transplanter in the prior art is only equipped with a separate tray for holding seedlings, resulting in low efficiency in transplanting operations.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A transplanter comprises a frame, at least one side of which is provided with a tray mechanism for holding seedlings;

[0006] The tray mechanism includes a mounting frame connected to the frame, a plurality of square trays, a driving rod, a guide rod, and a driving assembly for driving the driving rod to rotate; the driving rod is rotatably arranged on the mounting frame, and the driving rod includes a threaded section located on the lower side and a smooth section located on the upper side, and each of the square trays is threadedly connected to the threaded section of the driving rod; the guide rod is fixedly arranged on the mounting frame and parallel to the driving rod, and each of the square trays is slidably connected to the guide rod; the plurality of square trays are arranged on the driving rod and the guide rod from top to bottom;

[0007] When the driving assembly drives the driving rod to rotate in the forward direction, a plurality of the square trays are lifted from the threaded section of the driving rod to the smooth section under the action of the driving rod and are accumulated on the smooth section;

[0008] When the driving assembly drives the driving rod to rotate in the opposite direction, a plurality of the square trays are lowered from the smooth section of the driving rod to the threaded section under the action of the driving rod.

[0009] A further solution: there are two drive rods and they are respectively arranged on both sides of one of the diagonals of the square pallet, and each of the square pallets is provided with a first through hole that cooperates with the two drive rods respectively, and the first through hole is provided with an internal thread; there are two guide rods and they are respectively arranged on both sides of the other diagonal of the square pallet, and each of the square pallet is provided with a second through hole that cooperates with the two guide rods respectively.

[0010] Based on the above technical solution: the arrangement of two guide rods and two driving rods makes the rising and falling of the square pallet more stable.

[0011] A further solution: each of the guide rods is provided with an elastic positioning pin and the elastic positioning pin is at the same height as the lower end of the smooth section of the driving rod;

[0012] When the driving assembly drives the driving rod to rotate forward to raise the square pallet, the square pallets above the square pallet at the bottom layer rise from the threaded section to the smooth section from top to bottom and are stacked on the smooth section under the action of the elastic positioning pin, and the highest position of the square pallet at the bottom layer is located on the lower side of the elastic positioning pin.

[0013] Based on the above technical solution: by arranging an elastic locating pin on the guide rod and the elastic locating pin and the lower end of the smooth section of the driving rod are at the same height, when the square pallet rises along the threaded section to the smooth section, it will be accumulated on the smooth section and on the upper side of the elastic locating pin under the action of the elastic locating pin, thereby avoiding the problem that when the driving rod rotates, the square pallet is affected by gravity and the force of the driving rod and swings up and down at the junction of the threaded section and the smooth section.

[0014] A further solution: the elastic locating pin includes a spring and a pin shaft, the guide rod is provided with a mounting groove, the pin shaft is slidably arranged in the mounting groove, the spring is arranged between the bottom of the mounting groove and the pin shaft, and the pin shaft is provided with a spherical crown-shaped outer end portion exposed from the mounting groove notch and a limiting portion located in the mounting groove and with a diameter larger than the mounting groove notch.

[0015] A further solution is that a tension rope is provided between each two upper and lower adjacent square trays for connecting the two square trays and can be expanded or folded;

[0016] When the driving assembly drives the driving rod to rotate forward to make the square tray rise to the smooth section of the driving rod, the tension rope between two adjacent square trays is folded;

[0017] When the driving assembly drives the driving rod to rotate in the opposite direction to lower the square pallet, the square pallet on the lower layer of each adjacent two square pallets drives the tension rope to unfold by descending along the threaded section, and the unfolded tension rope pulls the square pallet on the upper layer to descend to the threaded section through the elastic positioning pin.

[0018] Based on the above technical solution: by providing a tension rope connecting the two square trays between each two adjacent square trays, when the driving assembly drives the plurality of square trays stacked on the smooth section to descend via the driving rod, the square tray on the lower layer of each adjacent square tray descends along the threaded section, driving the tension rope to unfold. The unfolded tension rope then pulls the square tray on the upper layer through the elastic positioning pin and descends to the threaded section, thereby allowing the plurality of square trays to descend to the threaded section in sequence at a certain distance. Since the seedlings have a certain height, the distance between adjacent square trays facilitates reloading of the seedlings.

[0019] A further solution: the length of the tension rope is adjustable.

[0020] Based on the above technical solution: Since different varieties of seedlings have different heights, the length-adjustable tension rope can be easily adjusted according to different types of seedlings, so that the distance between two adjacent square trays can accommodate the seedlings, thereby expanding the scope of application.

[0021] A further solution: the mounting frame includes an upper mounting frame and a lower mounting frame, and the lower mounting frame is fixedly connected to the frame; the driving rod and the guide rod are both arranged between the upper mounting frame and the lower mounting frame; the upper and lower ends of the guide rod are respectively fixedly connected to the upper mounting frame and the lower mounting frame, and the upper and lower ends of the driving rod are respectively rotatably connected to the upper mounting frame and the lower mounting frame.

[0022] A further solution: the drive assembly is arranged on the upper mounting frame, and the drive assembly includes a motor, a speed change gear set and a chain transmission assembly, and the chain transmission assembly includes a main sprocket, a slave sprocket and a chain sleeved on the main sprocket and the slave sprocket, and the main sprocket and the slave sprocket are respectively arranged at the upper ends of two driving rods; the output end of the motor is connected to the input end of the speed change gear set, and the output end of the speed change gear set is connected to the input end of the main sprocket.

[0023] A further solution is that there are two groups of tray mechanisms, and the two groups of tray mechanisms are respectively arranged on the left and right sides of the frame.

[0024] Based on the above technical solution: two groups of tray mechanisms arranged on the left and right sides of the frame can place more seedlings.

[0025] A further solution is that each of the square trays is provided with two front and rear grooves for holding the seedlings.

[0026] Based on the above technical solution: when people can sit on both the front and rear sides of the transplanter at the same time, the two front and rear grooves for holding seedlings are convenient for people on both sides of the transplanter to take them, making the operation more convenient.

[0027] The beneficial effects of the present invention are:

[0028] 1. The present invention provides a tray mechanism on at least one side of the frame to hold transplanted seedlings. The plurality of square trays on the tray mechanism can hold a large number of seedlings at a time, which greatly reduces the number of times the operator has to stop or turn around to get the seedlings, thereby improving the operating efficiency of the transplanter.

[0029] 2. The present invention provides a drive rod comprising a threaded section on the bottom and a smooth section on the top. The threaded section is threadedly connected to the square tray, and the guide rod is slidably connected to the square tray. Therefore, during transplanting operations, the drive assembly can be operated to cause the multiple square trays to rise sequentially along the guide rod and the drive rod to a height that is easily accessible to a person, thereby facilitating the removal of seedlings for transplanting, and providing a very convenient operation. Furthermore, when the multiple square trays rise to the smooth section, they will be stacked on the smooth section. By stacking the multiple square trays on the smooth section, when the bottom square tray rises to a height that is easily accessible to a person, the square trays on the upper layers do not need to be raised to a very high height, thereby reducing the length of the drive rod and the guide rod.

[0030] 3. During the transplanting operation, after the seedlings at the bottom layer have been taken out, the personnel can operate the driving assembly to make several square trays descend to the threaded section in sequence, so as to facilitate the reloading of the seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 It is a structural schematic diagram of a transplanter of the present invention.

[0033] Figure 2 It is a structural schematic diagram of the square trays of the present invention stacked on the smooth section of the driving rod.

[0034] Figure 3 It is a structural schematic diagram of the drive assembly of the present invention.

[0035] Figure 4 It is a structural schematic diagram of a square tray of the present invention.

[0036] Figure 5 It is a schematic cross-sectional structural diagram of the elastic positioning pin of the present invention.

[0037] Description of the numbers in the figure:

[0038] 1-frame; 111-front seat; 112-rear seat; 113-wheel; 114-central plate; 2-drive rod; 21-threaded section; 22-smooth section; 3-guide rod; 31-mounting slot; 4-square tray; 41-first through hole; 42-second through hole; 43-groove; 5-drive assembly; 51-master sprocket; 52-slave sprocket; 53-motor; 54-speed gear set; 55-tensioning sprocket; 56-chain; 6-elastic locating pin; 61-pin shaft; 611-limiting part; 62-spring; 7-upper mounting frame; 8-lower mounting frame; 9-pull rope. DETAILED DESCRIPTION

[0039] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0040] like Figures 1 to 5 As shown, this embodiment provides a transplanter, comprising a frame 1, wherein at least one side of the frame 1 is provided with a tray mechanism for holding seedlings;

[0041] The tray mechanism includes a mounting frame connected to the frame 1, several square trays 4, a driving rod 2, a guide rod 3 and a driving assembly 5 for driving the driving rod 2 to rotate; the driving rod 2 is rotatably arranged on the mounting frame, and the driving rod 2 includes a threaded section 21 located on the lower side and a smooth section 22 located on the upper side, and each of the square trays 4 is threadedly connected to the threaded section 21 of the driving rod 2; the guide rod 3 is fixedly arranged on the mounting frame and parallel to the driving rod 2, and each of the square trays 4 is slidably connected to the guide rod 3. In order to facilitate the sliding of the square trays 4 along the guide rod 3, the guide rod 3 can be set to be smooth; several square trays 4 are arranged on the driving rod 2 and the guide rod 3 from top to bottom; when starting to load the seedlings, there is a certain distance between two adjacent square trays 4, which can be set according to the height of the seedlings or the height when placed on the square tray 4.

[0042] When the drive assembly 5 drives the drive rod 2 to rotate forward, the plurality of square trays 4 are lifted from the threaded section 21 of the drive rod 2 to the smooth section 22 and stacked on the smooth section 22 under the action of the drive rod 2. During the lifting process, when the square trays 4 filled with seedlings are lifted to a height that is easily accessible by hand, the operator can remove the seedlings, which is more labor-saving and convenient. After the plurality of square trays 4 are lifted to the smooth section 22 in sequence, they will be stacked together on the smooth section 22 due to the loss of the action of the drive rod 2, so that the drive rod 2 and the guide rod 3 do not need to be set too high to achieve the purpose of transporting the bottom square tray 4 to a height that is easily accessible by hand.

[0043] When the driving assembly 5 drives the driving rod 2 to rotate in the opposite direction, several of the square trays 4 are lowered from the smooth section 22 of the driving rod 2 to the threaded section 21 under the action of the driving rod 2. During the descending process, the square trays 4 on the bottom layer to the square trays 4 on the top layer descend in sequence.

[0044] In this embodiment, the transplanter is as follows Figure 1 and Figure 2 As shown, two wheels 113 are provided on the left and right sides of the lower side of the frame 1. A front seat 111 is provided on the front side of the frame 1, and a rear seat 112 is provided on the rear side of the frame 1, allowing two people to work simultaneously. A central tray 114 is provided between the front and rear seats 111, 112, which can also be used to place seedlings. To enable a larger number of seedlings to be loaded at a time, this embodiment includes two sets of tray mechanisms, one on each side of the frame 1. Both sets of tray mechanisms can be driven upward or downward simultaneously by a single drive assembly 5, or each set of tray mechanisms can be provided with a separate drive assembly 5.

[0045] In this embodiment, each of the square trays 4 is provided with two front and rear grooves 43 for holding seedlings. When the front seat 111 and the rear seat 112 of the transplanter are occupied by people at the same time, the two front and rear grooves 43 for holding seedlings facilitate the people at the front and rear sides of the transplanter to take the seedlings.

[0046] Among them, such as Figure 1 and Figure 2As shown, in order to make the square tray 4 more stable during the ascent and descent process, this embodiment provides two drive rods 2, one located on either side of one diagonal of the square tray 4. Each square tray 4 is provided with a first through hole 41, each of which is internally threaded and engages with the two drive rods 2. Two guide rods 3 are provided, one located on either side of the other diagonal of the square tray 4. Each square tray 4 is provided with a second through hole 42, each of which is engaged with the two guide rods 3. The four corners of the square tray 4 are respectively engaged with the two drive rods 2 and the two guide rods 3, making the ascent and descent of the square tray 4 more stable.

[0047] In this embodiment, in order to avoid the problem of up and down shaking when a number of square trays 4 are stacked on the smooth section 22, an elastic positioning pin 6 is provided on each guide rod 3, and the elastic positioning pin 6 is at the same height as the lower end of the smooth section 22 of the driving rod 2.

[0048] When the driving assembly 5 drives the driving rod 2 to rotate forward to cause the square tray 4 to rise, the square trays 4 above the square tray 4 at the bottom layer rise from the threaded section 21 to the smooth section 22 from top to bottom in sequence and are stacked on the smooth section 22 under the action of the elastic positioning pin 6, and the highest position to which the square tray 4 at the bottom layer rises is located on the lower side of the elastic positioning pin 6. During the rising process, for two adjacent square trays 4, when the square tray 4 at the upper layer reaches the upper end of the threaded section 21, it will be driven by the square tray 4 at the lower layer to pass through the elastic positioning pin 6 and then rise to the upper side of the elastic positioning pin 6. The above arrangement avoids the problem of the square tray 4 rocking back and forth at the junction of the threaded section 21 and the smooth section 22 due to the influence of gravity and the force of the driving rod 2 when the driving rod 2 rotates forward.

[0049] In this embodiment, the function of the elastic positioning pin 6 is that when the square pallet 4 passes through this position, the elastic positioning pin 6 is retracted into the guide rod 3 under the pressure of the inner wall of the second through hole 42 of the square pallet 4, thereby facilitating the rising of the square pallet 4. After the square pallet 4 passes through the elastic positioning pin 6, the elastic positioning pin 6 extends out and rests against the lower surface of the square pallet 4, positioning it in the smooth section 22.

[0050] like Figure 5 As shown, as a specific embodiment of the elastic locating pin 6, the elastic locating pin 6 includes a spring 62 and a pin shaft 61, the guide rod 3 is provided with a mounting groove 31, the pin shaft 61 is slidably set in the mounting groove 31, the spring 62 is set between the bottom of the mounting groove 31 and the pin shaft 61, and the pin shaft 61 is provided with a spherical crown-shaped outer end portion exposed from the notch of the mounting groove 31 and a limiting portion 611 located in the mounting groove 31 and with a diameter larger than the notch of the mounting groove 31.

[0051] In this embodiment, Figure 4 As shown, after the seedlings on the plurality of square trays 4 are taken out, in order to facilitate reloading of the seedlings, in this embodiment, a tension rope 9 for connecting the two square trays 4 and capable of being unfolded or folded is provided between each two adjacent square trays 4;

[0052] When the driving assembly 5 drives the driving rod 2 to rotate forward so that the square trays 4 rise to the smooth section 22 of the driving rod 2, the tension rope 9 between two adjacent square trays 4 is folded, and the square trays 4 above the bottom layer are all stacked on the smooth section 22, and the square trays 4 at the bottom layer are always threadedly connected to the threaded section 21 of the driving rod 2;

[0053] When the driving assembly 5 drives the driving rod 2 to rotate in the opposite direction to lower the square trays 4, the lower square tray 4 of each adjacent two square trays 4 descends along the threaded section 21, driving the tension rope 9 to unfold. The unfolded tension rope 9 then pulls the upper square tray 4 through the elastic positioning pin 6 and descends to the threaded section 21. Due to the action of the tension rope 9 and the elastic positioning pin 6, several square trays 4 can be sequentially lowered to the threaded section 21 at a certain interval during the descent process.

[0054] Wherein, because different varieties of rice seedlings have different heights, the length of the tension rope 9 is adjustable in this embodiment. Specifically, it can be adjusted according to the height of the rice seedlings when placed on the square tray 4.

[0055] In this embodiment, Figure 1 and Figure 2 As shown, the mounting frame includes an upper mounting frame 7 and a lower mounting frame 8. The lower mounting frame 8 is fixedly connected to the frame 1 and can be fixedly connected to the frame 1 by screws; the driving rod 2 and the guide rod 3 are both arranged between the upper mounting frame 7 and the lower mounting frame 8; the upper and lower ends of the guide rod 3 are fixedly connected to the upper mounting frame 7 and the lower mounting frame 8 respectively, and the upper and lower ends of the driving rod 2 are rotatably connected to the upper mounting frame 7 and the lower mounting frame 8 respectively, and can be rotatably connected through bearings.

[0056] like Figures 1 to 3As shown, the drive assembly 5 in this embodiment can be arranged on the upper mounting frame 7. Specifically, the drive assembly 5 includes a motor 53, a speed-changing gear set 54, and a chain transmission assembly. The chain transmission assembly includes a main sprocket 51, a slave sprocket 52, and a chain 56 mounted on the main sprocket 51 and the slave sprocket 52. The main sprocket 51 and the slave sprocket 52 are respectively arranged on the upper ends of the two drive rods 2. The output end of the motor 53 is connected to the input end of the speed-changing gear set 54, and the output end of the speed-changing gear set 54 is connected to the input end of the main sprocket 51. In order to prevent the chain 56 from loosening, a tensioning sprocket 55 is further provided on the upper mounting frame 7. When the motor 53 rotates, the speed-changing gear set 54 decelerates and outputs power, thereby driving the main sprocket 51 to rotate, and then driving the drive rod 2 to rotate.

[0057] Working principle description:

[0058] Before transplanting, several tray mechanisms can be filled with seedlings. During the operation, the driving assembly 5 can be operated to make several square trays 4 rise in sequence along the guide rod 3 and the driving rod 2 to a height that is easily accessible to the operator, so that the operator can remove the seedlings for transplanting. After the several trays rise to the smooth section 22 of the driving rod 2, they will be piled up on the smooth section 22 under the action of the elastic positioning pin 6. After the seedlings on the square tray 4 at the bottom are taken out, the driving assembly 5 can be operated to reverse the driving rod 2. At this time, the square tray 4 at the bottom descends. During the descent, the tension rope 9 is straightened and the square tray 4 at the upper layer is driven downward by the tension rope 9 to overcome the resistance of the elastic positioning pin 6 and pass through the elastic positioning pin 6. In this way, each two adjacent square trays 4 in the several square trays 4 are kept at a certain distance, which is convenient for reloading the seedlings.

[0059] The present invention is not limited to the above-mentioned optional implementation methods. Under the premise of not conflicting with each other, the various solutions can be arbitrarily combined. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the scope of protection of the present invention.

Claims

1. A transplanter, characterized in that: The machine comprises a frame, at least one side of which is provided with a tray mechanism for containing rice seedlings; The tray mechanism includes a mounting frame connected to the frame, a plurality of square trays, a driving rod, a guide rod, and a driving assembly for driving the driving rod to rotate; the driving rod is rotatably arranged on the mounting frame, and the driving rod includes a threaded section located on the lower side and a smooth section located on the upper side, and each of the square trays is threadedly connected to the threaded section of the driving rod; the guide rod is fixedly arranged on the mounting frame and parallel to the driving rod, and each of the square trays is slidably connected to the guide rod; the plurality of square trays are arranged on the driving rod and the guide rod from top to bottom; When the driving assembly drives the driving rod to rotate in the forward direction, a plurality of the square trays are lifted from the threaded section of the driving rod to the smooth section under the action of the driving rod and are accumulated on the smooth section; When the driving assembly drives the driving rod to rotate in the opposite direction, the plurality of square trays are lowered from the smooth section of the driving rod to the threaded section under the action of the driving rod; There are two drive rods, each of which is provided on both sides of one diagonal line of the square tray. Each of the square trays is provided with a first through hole, each of which is matched with the two drive rods. The first through hole is provided with an internal thread. There are two guide rods, each of which is provided on both sides of the other diagonal line of the square tray. Each of the square trays is provided with a second through hole, each of which is matched with the two guide rods. Each guide rod is provided with an elastic positioning pin, and the elastic positioning pin is at the same height as the lower end of the smooth section of the driving rod; When the driving assembly drives the driving rod to rotate forward to raise the square tray, the square trays above the bottom square tray rise from the threaded section to the smooth section in sequence from top to bottom and are stacked on the smooth section under the action of the elastic positioning pin, and the highest position of the bottom square tray is located below the elastic positioning pin; Between each two adjacent square trays, there is a tension rope for connecting the two square trays and can be expanded or folded; When the driving assembly drives the driving rod to rotate forward to make the square tray rise to the smooth section of the driving rod, the tension rope between two adjacent square trays is folded; When the driving assembly drives the driving rod to rotate in the opposite direction to lower the square pallet, the square pallet on the lower layer of each adjacent two square pallets drives the tension rope to unfold by descending along the threaded section, and the unfolded tension rope pulls the square pallet on the upper layer to descend to the threaded section through the elastic positioning pin.

2. A transplanter according to claim 1, characterized in that: The elastic positioning pin includes a spring and a pin shaft. The guide rod is provided with a mounting groove. The pin shaft is slidably arranged in the mounting groove. The spring is arranged between the bottom of the mounting groove and the pin shaft. The pin shaft is provided with a spherical crown-shaped outer end portion exposed from the mounting groove notch and a limiting portion located in the mounting groove and with a diameter larger than the mounting groove notch.

3. The transplanter according to claim 1, characterized in that: The length of the tension rope is adjustable.

4. The transplanter according to claim 1, characterized in that: The mounting frame includes an upper mounting frame and a lower mounting frame, and the lower mounting frame is fixedly connected to the frame; the driving rod and the guide rod are both arranged between the upper mounting frame and the lower mounting frame; the upper and lower ends of the guide rod are respectively fixedly connected to the upper mounting frame and the lower mounting frame, and the upper and lower ends of the driving rod are respectively rotatably connected to the upper mounting frame and the lower mounting frame.

5. The transplanter according to claim 4, characterized in that: The drive assembly is arranged on the upper mounting frame, and the drive assembly includes a motor, a speed change gear set and a chain transmission assembly. The chain transmission assembly includes a main sprocket, a slave sprocket and a chain sleeved on the main sprocket and the slave sprocket. The main sprocket and the slave sprocket are respectively arranged at the upper ends of two driving rods; the output end of the motor is connected to the input end of the speed change gear set, and the output end of the speed change gear set is connected to the input end of the main sprocket.

6. The transplanter according to claim 1, characterized in that: There are two groups of tray mechanisms, which are respectively arranged on the left and right sides of the frame.

7. The transplanter according to claim 1, characterized in that: Each of the square trays is provided with two front and rear grooves for holding the seedlings.

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