CN113228902A

CN113228902A - Automatic planting machine for sweet potatoes

Info

Publication number: CN113228902A
Application number: CN202110605293.6A
Authority: CN
Inventors: 张勇跃; 孟凡奇; 刘志坚; 张云杰; 王清; 马春业; 秦素研
Original assignee: Luohe academy of agricultural sciences
Current assignee: Luohe academy of agricultural sciences
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-08-10

Abstract

The invention relates to the technical field of sweet potato planting machinery, and discloses automatic sweet potato planting machinery, which comprises: a vehicle body, a frame and an installation box, the water tank, microprocessor and power, the framework is connected to the car body, the mounting box is fixed to the lower end of the framework, there is cavity in the mounting box, there are two-way moving mechanisms in the cavity, there are two symmetrical push plates that set up on the two-way moving mechanism, the lower end of the mounting box has a horizontal concrete chute, the lower end of the push plate extends out of the concrete chute, there are a round of water flow channels communicated on the tank wall of the mounting box, there are multiple apopores that run through its bottom wall on the bottom wall of the mounting box, the water tank is fixed to the upper end of the framework, there are placing holes that run through its direction of height on the framework, the water tank communicates with water flow channel through the outlet pipe, the outlet pipe runs through the placing hole, there are electromagnetic valves on the outlet pipe, the microprocessor is connected with two-way moving mechanism and electromagnetic valve signal separately, the machinery of the invention can avoid the emergence of the "seedling falling" situation.

Description

Automatic planting machine for sweet potatoes

Technical Field

The invention relates to the technical field of sweet potato planting machinery, in particular to automatic sweet potato planting machinery.

Background

Sweet potatoes are only food and economic crops in China, and due to good soil adaptability and wide planting areas, ridge culture is mostly adopted for sweet potato transplanting, operations such as plowing and ridging, seedling placing, soil covering, water applying and the like are needed, and the sweet potato planting in the early years is mainly artificial planting and generally divided into a horizontal planting and oblique planting method.

Also appeared at present the automatic planting machinery of some sweet potatoes, mainly put in subassembly, earthing subassembly and suppression subassembly etc. including rotary tillage rotor, ridging mechanism, potato seedling, each part is used for the rotary tillage hack in proper order, ridging, puts in sweet potato seedling, earthing and compact with soil suppression, has realized the automatic mechanical planting of sweet potato.

However, for the planting of sweet potatoes, water is needed to be applied during planting, the existing automatic machines basically apply water uniformly after planting is finished, but the density of soil backfilled in ridges is smaller than that of surrounding soil, soil compaction can be caused after water application to cause collapse, and the planting depth of a common horizontal planting method is about 5 cm, so that the burying depth of sweet potato seedlings becomes shallow, the 'seedling falling' condition is easily caused, and the growth of the sweet potatoes is not facilitated.

Disclosure of Invention

The invention provides an automatic sweet potato planting machine, and aims to solve the problem that the seedling falling condition is easily caused in the planting process of the existing automatic sweet potato planting machine.

The invention provides an automatic sweet potato planting machine, which comprises:

the potato seedling planting machine comprises a vehicle body, a rack, a rotary tillage knife roll, a ridging mechanism and a potato seedling throwing component, wherein the rack is connected to the vehicle body;

the mounting box is fixed at the lower end of the rack, a cavity is formed in the mounting box, a two-way moving mechanism is arranged in the cavity, two symmetrically arranged push plates are connected to the two-way moving mechanism, the two-way moving mechanism pushes the two push plates to move in the opposite directions or in the opposite directions, a transverse sliding groove is formed in the lower end face of the mounting box, the sliding grooves extend out of the lower ends of the push plates, a circle of communicated water flowing channel is formed in the box wall of the mounting box, and a plurality of water outlet holes penetrating through the bottom wall of the mounting box are formed in the bottom wall of the mounting box;

the water tank is fixed at the upper end of the rack, a placing hole penetrating through the rack in the height direction is formed in the rack, the water tank is communicated with the water flowing channel through a water outlet pipe, the water outlet pipe penetrates through the placing hole, and an electromagnetic valve is arranged on the water outlet pipe;

the microprocessor is respectively in signal connection with the two-way moving mechanism and the electromagnetic valve, controls the electromagnetic valve to be opened simultaneously when controlling the two-way moving mechanism to push the two push plates to move oppositely, and controls the electromagnetic valve to be closed simultaneously when controlling the two-way moving mechanism to push the two push plates to move oppositely;

and the power supply is electrically connected with the bidirectional moving mechanism and the microprocessor respectively.

Optionally, the bidirectional moving mechanism includes:

the motor is fixed on the installation box, an output shaft of the motor is horizontally arranged, the microprocessor is in signal connection with the motor so as to control the steering and rotating time of the motor, and the motor is electrically connected with the power supply;

the dwang along transversely setting up in the cavity to with the output shaft of motor, the dwang has two sections screw threads opposite to its length direction along its length direction, the spiro union have one rather than the nut of adaptation on every section screw thread, the horizontal direction sliding fit is followed to the inner wall of nut and install bin, push pedal and nut one-to-one, and link firmly in the lower extreme of nut.

Optionally, the lower parts of the two push plates are wedge-shaped blocks with large upper parts and small lower parts.

Optionally, an adjusting rod is fixedly connected between the installation box and the rack, the length of the adjusting rod is adjustable, the adjusting rod is of a hollow structure, and the water outlet pipe penetrates through the inside of the adjusting rod along the longitudinal direction.

Optionally, a compaction mechanism is further mounted on the frame, the compaction mechanism is located behind the mounting box, and the compaction mechanism is used for compacting the soil.

Optionally, the compacting mechanism comprises:

the upper end of the supporting column is connected to the rack, the lower end of the supporting column is provided with an accommodating cavity, and the upper wall of the accommodating cavity is fixedly connected with an elastic piece;

the upper part of the mounting frame is positioned in the accommodating cavity, the side wall of the mounting frame is in sliding fit with the cavity wall of the accommodating cavity along the longitudinal direction, and the upper end of the mounting frame is fixedly connected with the lower end of the elastic piece;

the two rollers are movably connected to the mounting frame through rotating shafts, the rolling direction of the rollers is consistent with the advancing direction of the vehicle body, and a gap is reserved between the two rollers.

Optionally, the compacting mechanism further comprises a vibrator connected between the support column and the frame to vibrate the support column up and down.

Optionally, a sliding mechanism is arranged between the rack and the vehicle body, so that the rack moves along the advancing direction or the retreating direction of the vehicle body, the sliding mechanism is in signal connection with the microprocessor, the sliding mechanism is electrically connected with the power supply, after the microprocessor controls the electromagnetic valve to be closed, the vehicle body moves forwards for a fixed distance and then stops, the microprocessor controls the sliding mechanism to move backwards for a fixed distance, controls the two-way moving mechanism to push the two push plates to move towards each other, controls the electromagnetic valve to be opened at the same time, and then controls the sliding mechanism to reset.

Optionally, the sliding mechanism comprises:

the slide rail is arranged on the lower end surface of the vehicle body along the advancing direction of the vehicle body;

the sliding block is arranged on the upper end face of the rack, is in sliding fit with the sliding rail, is driven to move by the driving mechanism, and is in signal connection with the microprocessor and is electrically connected with the power supply.

Compared with the prior art, the invention has the beneficial effects that: the invention can realize the opposite movement or back movement of the push plates by connecting the push plates with the bidirectional moving mechanism in the installation box, the rotary tillage knife roller, the ridging mechanism and the potato seedling throwing assembly at the front end firstly complete the operations of rotary tillage soil crushing, ridging and sweet potato seedling throwing along with the advancing of the vehicle body, the microprocessor controls the bidirectional moving mechanism to drive the two push plates to move in opposite directions, thereby covering the soil at the two sides of the ridge in the ridge, simultaneously, the water in the water tank flows out from the water outlet hole under the action of gravity by controlling the opening of the electromagnetic valve, the flowing water and the soil covering simultaneously can lead the soil at each layer to be contacted with the water in the process of burying the ridge, thereby leading the soil covering the sweet potato seedlings to be in the same humidity range from top to bottom, thus the soil covering the vicinity of the sweet potato seedlings cannot be too loose, the integral density is more consistent, the seedling falling phenomenon is not easy to occur, and the water flow out by the self gravity of the water is not too large, can not lead to soil moisture too high, when satisfying the irrigation sweet potato seedling, avoid soil to step on really more leading to the problem of serious collapse, further avoid "fall the seedling" phenomenon, can realize the irrigation of intermittent type formula watering just through two-way moving mechanism's reciprocating motion clearance, avoid irrigating at the position that does not have the sweet potato seedling, practiced thrift the water resource.

Drawings

FIG. 1 is a front view of an automatic sweet potato planting machine according to an embodiment of the present invention;

FIG. 2 is a left side view of an automatic sweet potato planting machine according to an embodiment of the present invention;

FIG. 3 is a schematic view of an internal structure of an installation box according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a compacting mechanism provided in an embodiment of the invention.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing technical solutions of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-2, an automatic sweet potato planting machine provided by the embodiment of the invention comprises: the potato seedling planting machine comprises a vehicle body 13, a frame 10, a rotary tillage knife roll, a ridging mechanism, a potato seedling throwing component, an installation box 20, a water tank 30, a microprocessor and a power supply, wherein the frame 10 is connected to the vehicle body 13, the rotary tillage knife roll, the ridging mechanism and the potato seedling throwing component are sequentially arranged at the lower end of the vehicle body 13 and are positioned behind the frame 10, the installation box 20 is fixed at the lower end of the frame 10, a cavity 21 is formed in the installation box 20, a two-way moving mechanism 22 is arranged in the cavity 21, two symmetrically-arranged push plates 23 are connected to the two-way moving mechanism 22, the two-way moving mechanism 22 pushes the two push plates 23 to move in opposite directions or in opposite directions, a transverse sliding groove 26 is formed in the lower end face of the installation box 20, the sliding groove 26 extends from the lower end of each push plate 23, a circle of communicated water flowing channel 24 is formed in the wall of the installation box 20, a plurality of water outlet holes 25 penetrating through the bottom wall of the installation box 20 are formed in the bottom wall of the installation box, and the water tank 30 is fixed at the upper end of the frame 10, frame 10 is last to have the hole 11 of placing of running through its direction of height, water tank 30 communicates with flowing water passageway 24 through outlet pipe 31, outlet pipe 31 runs through and places hole 11, be provided with solenoid valve 32 on the outlet pipe 31, microprocessor respectively with two-way moving mechanism 22 and solenoid valve 32 signal connection, microprocessor is when controlling two-way moving mechanism 22 and promote two push pedal 23 motion in opposite directions, the solenoid valve 32 of simultaneous control is opened, microprocessor is when controlling two-way moving mechanism 22 and promote two push pedal 23 back to back on the other hand motions, the solenoid valve 32 of simultaneous control is closed, the power is connected with two-way moving mechanism 22 and microprocessor electricity respectively.

In the present embodiment, the bidirectional moving mechanism 22 is not limited to a specific structure, as long as the two push plates 23 can move toward or away from each other at the same time, and may be in the form of two sets of moving hydraulic cylinders or electric push rods, two sets of crank-link mechanisms, and a screw-nut mechanism.

The invention can realize the opposite movement or back movement of the push plates by connecting the push plates with the two-way moving mechanism in the installation box, the rotary tillage knife roller, the ridging mechanism and the potato seedling throwing assembly (the two mechanisms are arranged on the vehicle body in the invention of the prior structure) at the front end firstly complete the operations of rotary tillage soil crushing, ridging and sweet potato seedling throwing along with the advancing of the vehicle body, the microprocessor controls the two-way moving mechanism to drive the two push plates to move towards each other, thereby covering the soil at two sides of the ridge in the ridge, simultaneously, the water in the water tank flows out from the water outlet hole under the action of gravity by controlling the opening of the electromagnetic valve, the flowing water and the soil covering simultaneously can lead the soil at each layer to be contacted with the water in the process of burying the ridge, thereby leading the soil covering the sweet potato seedlings to be in the same humidity range from top to bottom, and the soil covering the vicinity of the sweet potato seedlings cannot be too loose, and overall density is comparatively unanimous, the difficult seedling phenomenon that falls appears, and the rivers that flow through water self gravity are unlikely to too big moreover, can not lead to soil moisture too high, when satisfying the irrigation sweet potato seedling, avoided soil to step on more the problem that leads to seriously caving in, further avoid "the seedling" phenomenon of falling, the reciprocating motion clearance through the two-way moving mechanism can realize the irrigation of intermittent type formula watering just, avoid irrigating at the position that does not have the sweet potato seedling, practiced thrift the water resource.

Referring to fig. 3, the bidirectional moving mechanism 22 of the present invention employs a lead screw nut assembly, and specifically, the bidirectional moving mechanism 22 includes: a motor 220 and a rotating rod 221, wherein the motor 220 is fixed on the installation box 20, the output shaft of the motor 220 is horizontally arranged, the microprocessor is in signal connection with the motor 220, to control the turning and rotation duration of the motor 220, the motor 220 is electrically connected to the power supply to provide power to the motor 220, the rotating rod 221 is transversely disposed in the cavity 21, and is connected with the output shaft of the motor 220, the rotating rod 221 has two sections of screw threads 222 with opposite screw directions along the length direction, each section of screw thread 222 is screwed with a nut 223 matched with the screw thread, the nut 223 is in sliding fit with the inner wall of the installation box 20 along the horizontal direction, the upper end of the nut 223 is fixedly connected with a sliding plate 224, the sliding plate 224 is in sliding fit with the inner top wall of the installation box 20, for example, in a sliding groove and sliding plate fit mode, the push plates 23 correspond to the nuts 223 one by one, and is fixedly connected to the lower end of the nut 223. in this embodiment, the two sections of threads 222 have the same length and are symmetrically arranged.

When motor 220 forward rotation, two nuts 223 remove in opposite directions, when motor 220 antiport, two nuts 223 remove back to back, microprocessor is long the moving distance of controlling two nuts 223 through the rotation of control motor 220, in this embodiment, the nearest distance between two nuts 223 is close to zero, this has just guaranteed that two push pedal 23 can make the soil of both sides cover completely into the ridge in to great gap can not appear to the burying of sweet potato seedling most closely, further avoid falling the seedling phenomenon.

Optionally, the lower parts of the two push plates 23 are wedge-shaped blocks 27 with large upper parts and small lower parts, so that the contact area with the ground is reduced as much as possible, friction is reduced, the push plates 23 can push soil into ridges conveniently, water is irrigated along with the movement of the push plates 23, formed soil covering is basically a plane, and the phenomenon of seedling falling is further avoided.

Optionally, an adjusting rod 12 is fixedly connected between the installation box 20 and the rack 10, the length of the adjusting rod 12 is adjustable, the adjusting rod 12 is of a hollow structure, the water outlet pipe 31 longitudinally penetrates through the inside of the adjusting rod 12, the adjusting rod 12 only needs to be adjustable in length and is not limited to manual adjustment or electric adjustment, if in a telescopic rod mode, the height of the installation box 20 can be adjusted by fixedly connecting the adjusting rod 12 between the installation box 20 and the rack 10, and therefore the lower end of the push plate 23 is always kept in contact with the ground or nearly in contact with the ground in different terrains.

In order to avoid the soil from being too loose, the frame 10 of the present embodiment is further provided with a compacting mechanism 40, the compacting mechanism 40 is located behind the installation box 20, and the compacting mechanism 40 is used for compacting the soil.

Referring to fig. 4, the compaction mechanism 40 includes: the supporting column 400, the mounting frame 403 and the two rollers 404, the upper end of the supporting column 400 is connected to the rack 10, the lower end of the supporting column 400 is provided with an accommodating cavity 401, the upper cavity wall of the accommodating cavity 401 is fixedly connected with an elastic part 402, the upper part of the mounting frame 403 is located in the accommodating cavity 401, the side wall of the mounting frame 403 is in longitudinal sliding fit with the cavity wall of the accommodating cavity 401, the upper end of the mounting frame 403 is fixedly connected with the lower end of the elastic part 402, the rollers 404 are movably connected to the mounting frame 403 through a rotating shaft 405, the rolling direction of the rollers 404 is consistent with the advancing direction of the vehicle body 13, a gap is formed between the two rollers 404 (the gap is larger than the body circumference of the sweet potato seedling), in the embodiment, the elastic part 402 is a spring, the rollers 402 are guaranteed to be always abutted against the ground, so that the rollers 404 can flatten the soil, in addition, the elastic part 402 is of a flexible structure, and cannot cause the soil to be pressed too much, the sweet potato seedling can be well supported, and certain soil loosening is kept, so that the growth of the sweet potato seedling is facilitated.

In this embodiment, the compacting mechanism 40 further includes a vibrator 406 connected between the support column 400 and the frame 10 to vibrate the support column 400 up and down to compact the soil at greater depths.

In order to avoid the situation that the burying depth of sweet potato seedlings is insufficient due to the collapse of wetted soil, in the embodiment, the sweet potato seedlings are buried in the secondary soil after the watering is finished, a sliding mechanism 50 is arranged between the rack 10 and the vehicle body 13 so that the rack 10 moves along the advancing direction or the retreating direction of the vehicle body 13, the sliding mechanism 50 is in signal connection with a microprocessor, the sliding mechanism 50 is electrically connected with a power supply, the microprocessor controls the electromagnetic valve 32 to be closed and the vehicle body 13 to move forwards for a fixed distance and then stop, the microprocessor controls the sliding mechanism 50 to move backwards for a fixed distance and controls the two-way moving mechanism 22 to push the two push plates 23 to move oppositely, the electromagnetic valve 32 is controlled to be opened at the same time, and then the sliding mechanism 50 is controlled to reset.

Specifically, the slide mechanism 50 includes: the slide rail is arranged on the lower end face of the vehicle body 13 along the traveling direction of the vehicle body 13, the slider is arranged on the upper end face of the rack 10, the slider is in sliding fit with the slide rail, the slider is driven to move by a driving mechanism, the driving mechanism is in signal connection with the microprocessor and is electrically connected with a power supply, and the driving mechanism is not limited to electromagnetic driving or wheel type driving.

The use method and the working principle are as follows:

with the advancing of the vehicle body, the rotary tillage knife roller, the ridging mechanism and the sweet potato seedling throwing assembly at the front end (the vehicle body of the invention is provided with the mechanisms) firstly complete the operations of rotary tillage, soil breaking, ridging and sweet potato seedling throwing, the microprocessor controls the motor 220 to rotate forward to drive the rotating rod 221 to rotate forward, so that the two nuts 223 on the rotating rod move in opposite directions, namely the two push plates 23 move in opposite directions, thereby covering the soil at the two sides of the sweet potato seedling in the ridge to bury the root of the sweet potato seedling, simultaneously the microprocessor controls the electromagnetic valve 32 to open, so that the water in the water tank 30 flows out from the water outlet holes 25 through the water outlet pipe 31 and the water flowing channel 24 under the action of gravity, when the two nuts 223 reach the extreme position, the microprocessor controls the motor 220 to rotate reversely to enable the two push plates 23 to move back to back and reset and simultaneously controls the electromagnetic valve 32 to close, and in the process of advancing the vehicle body to the next sweet potato seedling, the rear roller 404 presses the soil which is just filled, then the microprocessor controls the driving mechanism to drive the sliding block to move backwards for a fixed distance, the distance is equal to the distance between two adjacent sweet potato seedlings, the two push plates 23 are enabled to return to the position of the previous sweet potato seedling again, the microprocessor controls the motor 220 to rotate forwards again to drive the rotating rod 221 to rotate forwards, two nuts 223 on the rotating rod move in opposite directions, namely the two push plates 23 move in opposite directions, so that the soil on two sides of the sweet potato seedling is covered in the ridge to bury the root of the sweet potato seedling, meanwhile, the control electromagnetic valve 32 is opened, water in the water tank 30 flows out from the water outlet pipe 31 and the water flow channel 24 under the action of gravity, secondary landfill is achieved, and after the two nuts 223 reach the extreme position, the microprocessor controls the motor 220 to rotate backwards to enable the two push plates 23 to move backwards and reset and control the electromagnetic valve 32 to close at the same time.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. The utility model provides an automatic planting machine of sweet potato, includes that automobile body (13), frame (10), rotary tillage rotor, ridging mechanism and potato seedling put in the subassembly, frame (10) connect in on automobile body (13), rotary tillage rotor, ridging mechanism and potato seedling put in the subassembly set gradually in automobile body (13) lower extreme, and be located frame (10) rear, its characterized in that still includes:

the mounting box (20) is fixed at the lower end of the rack (10), a cavity (21) is formed in the mounting box (20), a two-way moving mechanism (22) is arranged in the cavity (21), two symmetrically arranged push plates (23) are connected to the two-way moving mechanism (22), the two push plates (23) are pushed by the two-way moving mechanism (22) to move in the opposite direction or in the opposite direction, a transverse sliding groove (26) is formed in the lower end face of the mounting box (20), the sliding grooves (26) extend out of the lower end of each push plate (23), a circle of communicated water flowing channels (24) are formed in the box wall of the mounting box (20), and a plurality of water outlet holes (25) penetrating through the bottom wall of the mounting box (20) are formed in the bottom wall of the mounting box;

the water tank (30) is fixed at the upper end of the rack (10), a placing hole (11) penetrating through the rack (10) in the height direction is formed in the rack (10), the water tank (30) is communicated with the water flowing channel (24) through a water outlet pipe (31), the water outlet pipe (31) penetrates through the placing hole (11), and an electromagnetic valve (32) is arranged on the water outlet pipe (31);

the microprocessor is respectively in signal connection with the two-way moving mechanism (22) and the electromagnetic valve (32), the microprocessor controls the electromagnetic valve (32) to be opened simultaneously when controlling the two-way moving mechanism (22) to push the two push plates (23) to move oppositely, and the microprocessor controls the electromagnetic valve (32) to be closed simultaneously when controlling the two-way moving mechanism (22) to push the two push plates (23) to move oppositely;

and the power supply is electrically connected with the bidirectional moving mechanism (22) and the microprocessor respectively.

2. The automated sweet potato planting machine according to claim 1, wherein the bidirectional moving mechanism (22) comprises:

the motor (220) is fixed on the installation box (20), an output shaft of the motor (220) is horizontally arranged, the microprocessor is in signal connection with the motor (220) so as to control the steering and rotating time of the motor (220), and the motor (220) is electrically connected with the power supply;

dwang (221), along transversely set up in cavity (21), and with the output shaft of motor (220) is connected, dwang (221) has two sections screws (222) to opposite along its length direction, every section the spiro union has one nut (223) rather than the adaptation on screw (222), nut (223) with the inner wall of install bin (20) is along horizontal direction sliding fit, push pedal (23) with nut (223) one-to-one, and link firmly in the lower extreme of nut (223).

3. The automatic sweet potato planting machine according to claim 1, wherein the lower parts of the two push plates (23) are wedge-shaped blocks (27) with large upper parts and small lower parts.

4. The automatic sweet potato planting machine of claim 1, wherein an adjusting rod (12) is fixedly connected between the mounting box (20) and the frame (10), the length of the adjusting rod (12) is adjustable, the adjusting rod (12) is of a hollow structure, and the water outlet pipe (31) longitudinally penetrates through the inside of the adjusting rod (12).

5. The automatic sweet potato planting machine according to claim 1, characterized in that a compacting mechanism (40) is further installed on the machine frame (10), the compacting mechanism (40) is located behind the installation box (20), and the compacting mechanism (40) is used for compacting soil.

6. The automated sweet potato planting machine according to claim 5, wherein the compacting mechanism (40) comprises:

the upper end of the supporting column (400) is connected to the rack (10), the lower end of the supporting column (400) is provided with an accommodating cavity (401), and the upper cavity wall of the accommodating cavity (401) is fixedly connected with an elastic piece (402);

the upper part of the mounting frame (403) is positioned in the accommodating cavity (401), the side wall of the mounting frame (403) is in sliding fit with the cavity wall of the accommodating cavity (401) along the longitudinal direction, and the upper end of the mounting frame (403) is fixedly connected with the lower end of the elastic piece (402);

the two rollers (404) are movably connected to the mounting frame (403) through rotating shafts (405), the rolling direction of the rollers (404) is consistent with the advancing direction of the vehicle body (13), and a gap is reserved between the two rollers (404).

7. The automated sweet potato planting machine of claim 6, wherein the compacting mechanism (40) further comprises a vibrator (406) connected between the supporting column (400) and the frame (10) to vibrate the supporting column (400) up and down.

8. The automatic sweet potato planting machine of claim 1, wherein a sliding mechanism (50) is arranged between the frame (10) and the vehicle body (13), so that the frame (10) moves in the traveling direction or the backward direction of the vehicle body (13), the sliding mechanism (50) is in signal connection with the microprocessor, the sliding mechanism (50) is electrically connected with the power supply, after the microprocessor controls the electromagnetic valve (32) to be closed, the vehicle body (13) moves forwards for a fixed distance and stops, the microprocessor controls the slide mechanism (50) to move the fixed distance in the backward direction, and controls the bidirectional moving mechanism (22) to push the two push plates (23) to move oppositely, meanwhile, the electromagnetic valve (32) is controlled to be opened, and then the sliding mechanism (50) is controlled to be reset.

9. The automated sweet potato planting machine according to claim 8, wherein the sliding mechanism (50) comprises:

a slide rail provided on a lower end surface of the vehicle body (13) in a traveling direction of the vehicle body (13);

the sliding block is arranged on the upper end face of the rack (10), the sliding block is in sliding fit with the sliding rail, the sliding block is driven to move by the driving mechanism, and the driving mechanism is in signal connection with the microprocessor and is electrically connected with the power supply.