Split type film-coated sweet potato planter

Abstract

The utility model belongs to the technical field of agricultural planting equipment, concretely relates to a split type mulching sweet potato planter, including frame, the frame is sequentially provided with ridging mechanism, seedling mechanism, mulching mechanism and soil covering mechanism along the direction of advance, the mulching mechanism includes first mulching roller and second mulching roller, the first mulching roller is located in the front of second mulching roller, the output end of seedling mechanism is located between first mulching roller and second mulching roller, the first output end of soil covering mechanism is located between the output end of seedling mechanism and second mulching roller, the second output end of soil covering mechanism is located in the rear of second mulching roller, first film, sweet potato seedling, first soil layer, second film and second soil layer are sequentially laid on the ridge by the planter. The utility model realizes the full -range mechanization of sweet potato planting through the cooperation of multiple mechanisms, solves the deviation problem when laying split type film layer of traditional equipment, improves planting efficiency, guarantees planting quality.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural planting equipment technology, specifically relating to a split-type film-covered sweet potato planting machine. Background Technology

[0002] Sweet potatoes are an important crop in my country, used for both food and economic purposes, and are widely cultivated, playing a vital role in ensuring food security and promoting agricultural economic development. In the process of sweet potato cultivation, mulching technology is one of the key means to improve yield and quality. It can effectively reduce soil moisture evaporation, maintain stable soil temperature, suppress weed growth, and provide a suitable microenvironment for the growth of sweet potato seedlings.

[0003] Chinese invention patent application number 202210130670.X discloses a method and equipment for sweet potato mulching. The mulch layer in this invention consists of two separate layers. Through a process of mulching, transplanting, covering with soil, mulching again, and covering with soil again, the sweet potato seedlings emerge from between the two layers of film. This not only ensures the moisture retention and heat preservation performance of the film, but also allows for some air exchange between the inside and outside of the film. This avoids the problem of excessively high internal temperature of the film affecting the growth of sweet potato seedlings, which occurs in the planting method of mulching first and then removing the seedlings after a period of growth. It also solves the problem of damaging the film and affecting its moisture retention and heat preservation effect in the planting method of removing the seedlings directly after mulching and then covering with soil.

[0004] However, the planting equipment provided in this invention has certain limitations in practical applications. The planting equipment has a simple structure, and the coordination accuracy between its film covering mechanism, transplanting mechanism and soil covering mechanism is low. It is easy for the film material to be misaligned, resulting in an unsatisfactory wrapping effect of the two layers of film on the potato seedlings, which in turn affects the stable performance of moisture retention and heat preservation. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a split-type film-covered sweet potato planting machine. Through the coordinated operation of multiple mechanisms, it achieves full mechanization of sweet potato planting, solves the offset problem of traditional equipment when laying split-type film layers, improves planting efficiency, and ensures planting quality.

[0006] The specific technical solution adopted in this utility model is as follows:

[0007] A split-type mulched sweet potato planter includes a frame. Along the forward direction, the frame is sequentially equipped with a ridging mechanism, a seedling placement mechanism, a mulching mechanism, and a soil covering mechanism. The mulching mechanism includes a first mulching roller and a second mulching roller. Both the first and second mulching rollers are hinged to the frame and have a degree of freedom to rotate along the forward direction. The first mulching roller is located in front of the second mulching roller. The output end of the seedling placement mechanism is located between the first and second mulching rollers. The first output end of the soil covering mechanism is located between the output end of the seedling placement mechanism and the second mulching roller. The second output end of the soil covering mechanism is located behind the second mulching roller. The first film, sweet potato seedlings, a first soil layer, a second film, and a second soil layer are sequentially laid onto the ridge using the planter.

[0008] The first and second mulching rollers are respectively positioned close to the left and right sides of the seedling laying mechanism. The first film is laid on one side of the ridge with the help of the first mulching roller and extends into the furrow. The roots of the sweet potato seedlings are laid on the ridge with the help of the seedling laying mechanism. The stems of the sweet potato seedlings extend out of the ridge edge and over the first film with the help of the seedling laying mechanism. The first soil layer covers the roots of the sweet potato seedlings with the help of the first output end of the soil covering mechanism. The second film is laid over the roots of the sweet potato seedlings with the help of the second mulching roller and extends into the furrow on the side away from the stems of the sweet potato seedlings. The second soil layer covers the surfaces of the first and second films with the help of the second output end of the soil covering mechanism.

[0009] The film covering mechanism also includes a pressing wheel, which is hinged to the bottom of the frame and has the freedom to rotate in the forward direction. The pressing wheel is located behind the first film covering roller, and the end of the first film on the ridge is pressed into the ridge surface by the pressing of the pressing wheel.

[0010] The soil covering mechanism is symmetrically arranged on the left and right sides of the frame. The soil covering mechanism includes a conveyor belt and a first guide plate and a second guide plate. The first guide plate and the second guide plate are respectively formed as the first output end and the second output end of the soil covering mechanism. The conveyor belt is drivenly connected to the output end of the gearbox on the frame and has a degree of freedom of rotation. The input end of the conveyor belt is connected to the soil discharge end of the ridging mechanism. The output end of the conveyor belt is located above the frame and is connected to the first guide plate and the second guide plate.

[0011] Both the first guide plate and the second guide plate have a wedge-shaped groove structure. The wide opening sides of the first guide plate and the second guide plate are connected to the output end of the conveyor belt, respectively. The groove of the first guide plate forms a first channel and guides the soil to cover the roots of the sweet potato seedlings. The groove of the second guide plate forms a second channel and guides the soil to cover the surfaces of the first membrane and the second membrane.

[0012] The top of the conveyor belt is also covered with a baffle, and the opening between the conveyor belt and the baffle faces the backward direction of the planting machine and forms the output end of the conveyor belt.

[0013] The ridging mechanism includes a shaping roller and soil discharge cylinders symmetrically arranged on the left and right sides of the shaping roller. A rotary tiller is provided at the front end of the soil discharge cylinder, and the output end of the rotary tiller is connected to the input end of the conveyor belt through the soil discharge cylinder.

[0014] The seedling lowering mechanism includes a seedling storage roller and a seedling lowering guide plate mounted on a frame. The seedling storage roller is connected to the frame with the aid of a bracket and has the freedom of rotation. Adhesive strips are provided at both ends of the seedling storage roller. Multiple sets of sweet potato seedlings are attached to the adhesive strips on both sides at intervals to form a grid-like seedling lowering strip. The seedling lowering strip is wrapped around the seedling storage roller and the seedlings are lowered by the rotation of the seedling storage roller. The seedling lowering guide plate is fixedly connected to the frame and extends from below the seedling storage roller in an inclined direction to between the first covering roller and the second covering roller. The output end of the seedling lowering guide plate forms the output end of the seedling lowering mechanism.

[0015] The front end of the frame is also equipped with a fertilizer storage box and a fertilizer discharge pipe. The liquid fertilizer in the fertilizer storage box is applied to the soil through the fertilizer discharge pipe.

[0016] The frame is also equipped with a tape delivery roller, on which drip irrigation tape is wound. The drip irrigation tape is laid between the sweet potato seedlings and the second film with the help of the tape delivery roller.

[0017] The beneficial effects of this utility model are:

[0018] The planting machine of this utility model achieves full mechanization of sweet potato planting through the coordinated operation of multiple mechanisms, solves the problem of misalignment when laying split film layers in traditional equipment, improves planting efficiency, and ensures planting quality.

[0019] During operation, the traction machine drives the frame forward. The ridging mechanism first forms ridges in the soil. Then, the first mulching roller rotates, laying the first film on one side of the ridge and extending it into the furrow. Next, the seedling laying mechanism lays the sweet potato seedlings on the ridge, with their stems extending beyond the ridge edge and overlapping the first film. At this point, the first output end of the covering mechanism covers the roots of the sweet potato seedlings. Then, the second mulching roller rotates, laying the second film over the roots of the sweet potato seedlings and extending it into the furrow on the side away from the stems. Finally, the second output end of the covering mechanism covers the surfaces of both the first and second films. Through this two-stage covering and pressing of the first and second films, the problem of misalignment between the first and second films is prevented. Attached Figure Description

[0020] Figure 1 This is a top view of the structure of this utility model;

[0021] Figure 2 This is a side sectional view of the present invention.

[0022] Figure 3 This is an aerial view of the planting field;

[0023] Figure 4 This is a cross-sectional diagram of the planting field;

[0024] Figure 5 This is a schematic diagram of the seedling tray structure;

[0025] In the attached diagram, 1. Frame, 2. First covering roller, 3. Second covering roller, 4. Pressing roller, 5. Conveyor belt, 6. First guide plate, 7. Second guide plate, 8. Gearbox, 9. Seedling storage roller, 10. Seedling discharge guide plate, 11. Shaping roller, 12. Soil discharge cylinder, 13. Baffle, 14. Rotary tillage blade, 15. Adhesive tape, 16. Fertilizer storage box, 17. Fertilizer discharge pipe, 18. Belt discharge roller, A. First film, B. Second film, C. Sweet potato seedling, D. First soil layer, E. Second soil layer, F. Drip irrigation tape. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0027] Specific embodiments, such as Figure 1-4 As shown, this utility model provides a split-type film-mulched sweet potato planter, including a frame 1. The frame 1 is provided with a ridging mechanism, a seedling laying mechanism, a film covering mechanism, and a soil covering mechanism arranged sequentially along the forward direction. The film covering mechanism includes a first film covering roller 2 and a second film covering roller 3. The first film covering roller 2 and the second film covering roller 3 are both hinged to the frame 1 and have the freedom to rotate along the forward direction. The first film covering roller 2 is located in front of the second film covering roller 3. The output end of the seedling laying mechanism is located between the first film covering roller 2 and the second film covering roller 3. The first output end of the soil covering mechanism is located between the output end of the seedling laying mechanism and the second film covering roller 3. The second output end of the soil covering mechanism is located behind the second film covering roller 3. The first film A, sweet potato seedling C, first soil layer D, second film B, and second soil layer E are sequentially laid on the ridge by the planter.

[0028] The existing planting equipment has a simple structure, and the coordination accuracy between its film covering mechanism, transplanting mechanism and soil covering mechanism is low. This can easily lead to the problem of film material misalignment, resulting in an unsatisfactory wrapping effect of the two layers of film on the potato seedlings, which in turn affects the stable performance of moisture retention and heat preservation.

[0029] Therefore, the planting machine in this utility model achieves full mechanization of sweet potato planting through the coordinated operation of multiple mechanisms, solves the offset problem of traditional equipment when laying split film layers, improves planting efficiency, and ensures planting quality.

[0030] During operation, the traction machine drives the frame 1 forward. The ridging mechanism first forms ridges in the soil. Then, the first mulching roller 2 rotates, laying the first film A on one side of the ridge and extending it into the furrow. Next, the seedling laying mechanism lays the sweet potato seedling C on the ridge, with its stem extending beyond the ridge edge and overlapping the first film A. At this time, the first output end of the covering mechanism covers the roots of the sweet potato seedling C. Then, the second mulching roller 3 rotates, placing the second film B over the roots of the sweet potato seedling C and extending it into the furrow on the side away from the stem of the sweet potato seedling C. Finally, the second output end of the covering mechanism covers the surfaces of the first film A and the second film B. Figure 3-4 As shown, by covering and pressing the first membrane A and the second membrane B with soil twice, the problem of laying misalignment of the first membrane A and the second membrane B is prevented.

[0031] like Figure 1-4 As shown, the first mulching roller 2 and the second mulching roller 3 are respectively arranged close to the left and right sides of the seedling laying mechanism. The first film A is laid on one side of the ridge with the help of the first mulching roller 2 and extends into the furrow. The roots of the sweet potato seedling C are laid on the ridge with the help of the seedling laying mechanism. The stem of the sweet potato seedling C extends out of the ridge edge and over the first film A with the help of the seedling laying mechanism. The first soil layer D covers the roots of the sweet potato seedling C with the help of the first output end of the soil covering mechanism. The second film B is placed over the roots of the sweet potato seedling C with the help of the second mulching roller 3 and extends into the furrow on the side away from the stem of the sweet potato seedling C. The second soil layer E covers the surface of the first film A and the second film B with the help of the second output end of the soil covering mechanism.

[0032] The separate layout of each mechanism allows them to cooperate with each other without interfering with each other. For example, when the staff needs to adjust the length of the sweet potato seedling C exposed above the soil, they can adjust the position of the seedling guide plate 10 and the seedling storage roller 9 separately, without having to adjust other mechanisms.

[0033] During planting, the ends of the first film A and the second film B are pre-buried on the ridge. With the help of the weight of the soil, the positions of the ends of the first film A and the second film B are fixed. Therefore, when the first film covering roller 2 and the second film covering roller 3 move forward with the vehicle frame, the first film covering roller 2 and the second film covering roller 3 will rotate under the pulling action of the ends of the first film A and the second film B and form film covering.

[0034] like Figure 1-4 As shown, the film covering mechanism also includes a pressing wheel 4, which is hinged to the bottom of the frame 1 and has the freedom to rotate in the forward direction. The pressing wheel 4 is located behind the first film covering roller 2, and the end of the first film A on the ridge is pressed down into the ridge surface by the pressing of the pressing wheel 4.

[0035] The lower surface of the pressing roller 4 is lower than the lower surface of the shaping roller 11, ensuring that the pressing roller 4 can sink into the ridge surface. During the forward movement of the frame 1, the pressing roller 4 rotates with the movement of the frame 1 and applies pressure to the end of the first film A, pressing the end of the first film A into the soil layer on the ridge. At the same time, when covering the soil, the soil will fill the depression on the ridge surface pressed by the pressing roller 4, burying the end of the first film A in the ridge to form a fixed connection, preventing the film from lifting or being blown away by the wind, avoiding the problem of the first film A being laid off, enhancing the stability and sealing of the film laying, and thus improving the heat preservation and moisture retention effects.

[0036] In addition, the end of the second membrane B overlaps with the end of the first membrane A, and the end of the second membrane B covers the depression of the first membrane A, making it difficult for the soil filled in the depression to disperse, thereby further improving the stability and sealing of the first membrane A.

[0037] like Figure 1-2 As shown, the soil covering mechanism is symmetrically arranged on the left and right sides of the frame 1. The soil covering mechanism includes a conveyor belt 5, a first guide plate 6, and a second guide plate 7. The first guide plate 6 and the second guide plate 7 are respectively formed as the first output end and the second output end of the soil covering mechanism. The conveyor belt 5 is connected to the output end of the reduction gearbox 8 on the frame 1 and has a degree of freedom of rotation. The input end of the conveyor belt 5 is connected to the soil discharge end of the ridging mechanism. The output end of the conveyor belt 5 is located above the frame 1 and is connected to the first guide plate 6 and the second guide plate 7.

[0038] Multiple sets of paddles are spaced apart on the conveyor belt 5. Since the conveyor belt 5 is inclined, the adjacent paddles, the belt body, and the frames on both sides of the conveyor belt 5 together form a conveying trough. The soil output by the ridging mechanism is conveyed from low to high through the conveying trough and used for subsequent covering.

[0039] The soil covering mechanism transports the soil discharged by the ridging mechanism to the location where soil covering is needed, achieving uniform soil covering and ensuring planting quality. The output shaft of the gearbox 8 and the drive shaft of the conveyor belt 5 are connected by a belt to form a transmission connection. The conveyor belt 5 transports the soil discharged by the ridging mechanism to a position higher than the ridge, and then, guided by the first guide plate 6 and the second guide plate 7, the soil is covered onto the sweet potato seedling C and the film layer respectively, forming the first soil layer D and the second soil layer E. The symmetrical arrangement of the soil covering mechanism on both sides ensures that the soil covering thickness on the ridge surface is relatively uniform.

[0040] like Figure 1-2 As shown, the first guide plate 6 and the second guide plate 7 are both wedge-shaped groove structures. The wide opening sides of the first guide plate 6 and the second guide plate 7 are respectively connected to the output end of the conveyor belt 5. The groove of the first guide plate 6 forms a first channel and guides the soil to cover the roots of the sweet potato seedling C. The groove of the second guide plate 7 forms a second channel and guides the soil to cover the surface of the first membrane A and the second membrane B.

[0041] The entrances of the first and second channels each occupy approximately half the space at the output end of conveyor belt 5. The soil output from ridging is transported to the apex of conveyor belt 5. Due to the high rotation speed of conveyor belt 5, the soil will fly horizontally towards the entrances of the first and second channels under the influence of inertia. The output end of the first channel is relatively forward, facing the area between the output end of the seedling guide plate 10 and the second mulching roller 3. The soil covers the sweet potato seedlings C already laid on the ridge along the first channel, forming the first soil layer D. The output end of the second channel is relatively backward, located behind the second mulching roller 3, facing the edge of the ridge. Some soil remains on the ridge, while the other part slides down along the ridge edge and covers the positions of the first film A and the second film B located at the ridge edge and furrow. The two parts of soil together form the second soil layer E.

[0042] like Figure 1-2 As shown, the top of the conveyor belt 5 is also covered with a baffle 13, and the opening between the conveyor belt 5 and the baffle 13 faces the backward direction of the planting machine and forms the output end of the conveyor belt 5.

[0043] The baffle 13 has an arc-shaped plate structure, with the concave side of the baffle 13 facing the conveyor belt 5, and the end of the baffle 13 is hinged to the frame of the conveyor belt 5 by means of a hinge.

[0044] Because the conveyor belt 5 rotates at a high speed, the soil will fly out in an inclined direction parallel to the conveyor belt 5 due to inertia. Therefore, a baffle 13 is provided to restrict the soil from flying horizontally towards the input end of the first guide plate 6 and the second guide plate 7.

[0045] like Figure 1-2 As shown, the ridging mechanism includes a shaping roller 11 and soil discharge cylinders 12 symmetrically arranged on the left and right sides of the shaping roller 11. A rotary tillage blade 14 is provided at the front end of the soil discharge cylinder 12, and the output end of the rotary tillage blade 14 is connected to the input end of the conveyor belt 5 through the soil discharge cylinder 12.

[0046] The ridging mechanism first uses rotary tillers 14 to crush the soil on both sides, then uses a soil discharge cylinder 12 to transport the soil backward and form furrows. At the same time, the shaping roller 11 is used to press and shape the soil between the furrows to form ridges.

[0047] like Figure 1-3 and Figure 5As shown, the seedling lowering mechanism includes a seedling storage roller 9 and a seedling lowering guide plate 10 mounted on the frame 1. The seedling storage roller 9 is connected to the frame 1 by means of a bracket and has the freedom of rotation. Adhesive strips 15 are respectively provided at both ends of the seedling storage roller 9. Multiple sets of sweet potato seedlings C are attached to the adhesive strips 15 on both sides at intervals to form a grid-like seedling lowering strip. The seedling lowering strip is wrapped around the seedling storage roller 9 and the seedlings are lowered by means of the rotation of the seedling storage roller 9. The seedling lowering guide plate 10 is fixedly connected to the frame 1. The seedling lowering guide plate 10 extends from below the seedling storage roller 9 in an inclined direction to between the first covering roller 2 and the second covering roller 3. The output end of the seedling lowering guide plate 10 forms the output end of the seedling lowering mechanism.

[0048] Before planting, use two sets of adhesive tape 15 to bond sweet potato seedlings C together, with the seedlings C spaced apart to form planting strips, such as... Figure 5 As shown, the seedling strip is then wrapped around the seedling storage roller 9.

[0049] When planting seedlings, the end of the planting strip is pre-buried in the ridge. Using the weight of the soil, the end of the planting strip is fixed in position. Therefore, when the frame 1 moves forward, the seedling storage roller 9 rotates under the pulling force of the end of the planting strip, thus planting the seedlings. Figure 3 As shown.

[0050] The seedling storage roller 9 can also rotate actively. The rotation shaft of the seedling storage roller 9 is connected to the output end of the reduction gearbox 8, so that the seedling storage roller 9 rotates synchronously with the forward movement of the tractor. When the seedling storage roller 9 rotates, the seedling unloading belt unloads seedlings. The seedling unloading belt slides down along the seedling unloading guide plate 10 and falls to the designated position between the first film covering roller 2 and the second film covering roller 3. By actively rotating the seedling storage roller 9, the situation of the adhesive tape 15 being pulled and broken can be avoided.

[0051] The front end of the frame 1 is also provided with a fertilizer storage box 16 and a fertilizer discharge pipe 17. The liquid fertilizer in the fertilizer storage box 16 is spread onto the soil through the fertilizer discharge pipe 17.

[0052] The fertilizer storage box 16 is filled with granular fertilizer. The output end of the fertilizer drop tube 17 is located in front of the rotary tiller 14. Before rotary tillage, the fertilizer drop tube 17 is used to spread the granular fertilizer on the soil surface. Then, the rotary tiller 14 is used to evenly mix the granular fertilizer on the soil surface into the deeper soil layer to avoid the granular fertilizer being concentrated in a local area.

[0053] The frame 1 is also equipped with a tape output roller 18, on which drip irrigation tape F is wound. The drip irrigation tape F is laid between the sweet potato seedling C and the second film B by means of the tape output roller 18.

[0054] The drip irrigation tape F is located between the sweet potato seedling C and the second film B. It can not only drip irrigate the sweet potato seedling C normally, but also protect the drip irrigation tape F with the help of the second soil layer E and the second film B, and play a role in fixing it.

Claims

1. A split-type mulched sweet potato planting machine, comprising a frame (1), wherein a ridging mechanism, a seedling placement mechanism, a mulching mechanism, and a soil covering mechanism are sequentially arranged on the frame (1) along the forward direction, characterized in that, The mulching mechanism includes a first mulching roller (2) and a second mulching roller (3). Both the first mulching roller (2) and the second mulching roller (3) are hinged to the frame and have the freedom to rotate in the forward direction. The first mulching roller (2) is located in front of the second mulching roller (3). The output end of the seedling laying mechanism is located between the first mulching roller (2) and the second mulching roller (3). The first output end of the soil covering mechanism is located between the output end of the seedling laying mechanism and the second mulching roller (3). The second output end of the soil covering mechanism is located behind the second mulching roller (3). The first film, sweet potato seedlings, first soil layer, second film and second soil layer are laid on the ridge in sequence with the help of the planting machine.

2. The split-type film-covered sweet potato planting machine according to claim 1, characterized in that, The first covering roller (2) and the second covering roller (3) are respectively set close to the left and right sides of the seedling laying mechanism. The first film is laid on one side of the ridge with the help of the first covering roller (2) and extends into the furrow. The roots of the sweet potato seedlings are laid on the ridge with the help of the seedling laying mechanism. The stems of the sweet potato seedlings extend out of the ridge edge and over the first film with the help of the seedling laying mechanism. The first soil layer covers the roots of the sweet potato seedlings with the help of the first output end of the soil covering mechanism. The second film is over the roots of the sweet potato seedlings with the help of the second covering roller (3) and extends into the furrow on the side away from the stems of the sweet potato seedlings. The second soil layer covers the surface of the first film and the second film with the help of the second output end of the soil covering mechanism.

3. The split type film-coated sweet potato planter according to claim 2, characterized in that, The film covering mechanism also includes a pressing wheel (4), which is hinged to the bottom of the frame (1) and has the freedom to rotate in the forward direction. The pressing wheel (4) is located behind the first film covering roller (2), and the end of the first film on the ridge is pressed down into the ridge surface by the pressing of the pressing wheel (4).

4. The split type film-coated sweet potato planter according to claim 1, characterized in that, The soil covering mechanism is symmetrically arranged on the left and right sides of the frame (1). The soil covering mechanism includes a conveyor belt (5), a first guide plate (6), and a second guide plate (7). The first guide plate (6) and the second guide plate (7) are respectively formed as the first output end and the second output end of the soil covering mechanism. The conveyor belt (5) is connected to the output end of the gearbox (8) on the frame (1) and has a degree of freedom of rotation. The input end of the conveyor belt (5) is connected to the soil discharge end of the ridging mechanism. The output end of the conveyor belt (5) is located above the frame (1) and is connected to the first guide plate (6) and the second guide plate (7).

5. A split-type film-covered sweet potato planting machine according to claim 4, characterized in that, The first guide plate (6) and the second guide plate (7) are both wedge-shaped groove structures. The wide opening sides of the first guide plate (6) and the second guide plate (7) are connected to the output end of the conveyor belt (5) respectively. The groove of the first guide plate (6) forms a first channel and guides the soil to cover the roots of the sweet potato seedlings. The groove of the second guide plate (7) forms a second channel and guides the soil to cover the surface of the first membrane and the second membrane.

6. The split type film-coated sweet potato planter according to claim 4, characterized in that, The top of the conveyor belt (5) is also covered with a baffle (13), and the opening between the conveyor belt (5) and the baffle (13) faces the backward direction of the planting machine and forms the output end of the conveyor belt (5).

7. The split type film-coated sweet potato planter according to claim 4, characterized in that, The ridging mechanism includes a shaping roller (11) and soil discharge cylinders (12) symmetrically arranged on the left and right sides of the shaping roller (11). A rotary tillage blade (14) is provided at the front end of the soil discharge cylinder (12). The output end of the rotary tillage blade (14) is connected to the input end of the conveyor belt (5) through the soil discharge cylinder (12).

8. A split-type film-covered sweet potato planting machine according to claim 1, characterized in that, The seedling lowering mechanism includes a seedling storage roller (9) and a seedling lowering guide plate (10) mounted on the frame (1). The seedling storage roller (9) is connected to the frame (1) by means of a bracket and has the freedom of rotation. Adhesive strips (15) are respectively provided at both ends of the seedling storage roller (9). Multiple sets of sweet potato seedlings are attached to the adhesive strips (15) on both sides at intervals to form a grid-like seedling lowering strip. The seedling lowering strip is wrapped around the seedling storage roller (9) and the seedlings are lowered by means of the rotation of the seedling storage roller (9). The seedling lowering guide plate (10) is fixedly connected to the frame (1). The seedling lowering guide plate (10) extends from below the seedling storage roller (9) in an inclined direction to between the first film covering roller (2) and the second film covering roller (3). The output end of the seedling lowering guide plate forms the output end of the seedling lowering mechanism.

9. The split type film-coated sweet potato planter according to claim 1, characterized in that, The front end of the frame (1) is also provided with a fertilizer storage box (16) and a fertilizer drop pipe (17), and the liquid fertilizer in the fertilizer storage box (16) is spread onto the soil through the fertilizer drop pipe (17).

10. The split type film-coated sweet potato planter according to claim 1, characterized in that, The frame (1) is also equipped with a tape delivery roller (18), on which drip irrigation tape is wound. The drip irrigation tape is laid between the sweet potato seedling and the second film with the help of the tape delivery roller (18).

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