Mulching film laying device based on agricultural planting

Abstract

The invention relates to the technical field of agricultural mechanical equipment, in particular to a mulching film laying device based on agricultural planting. The device comprises a moving trolley, a placing frame is arranged at the top of the moving trolley, an extension arm is arranged on one side of the placing frame, a convex plate is arranged at the bottom of the extension arm, a mulching film roll is arranged on one side of the convex plate, and a fixing assembly is arranged at the end of the convex plate. When a first rack drives an edge pressing block to move downwards in the vertical direction, a sliding rod slides on the inner wall of a column casing under tension and stretches a telescopic spring at the same time, at the moment, the edge pressing block moves to the surface of a mulching film, and when the edge pressing block continues to move downwards, the edge pressing block extrudes the two sides of the mulching film and presses the two sides of the mulching film into field soil; therefore, the two sides of the mulching film are automatically sealed, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery and equipment, and in particular to a ground film laying device for agricultural planting. Background Art

[0002] Ground film is a ground covering film, which is usually transparent or black film, but also green and silver film. It is used to cover the ground to increase soil temperature, retain soil moisture, maintain soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, etc. It promotes plant growth. For those newly unearthed seedlings, it can protect the roots and promote growth.

[0003] There are many existing technologies for film laying devices, such as: Chinese patent publication number CN216218621U discloses a mulch film laying device for agricultural planting, including a first oil cylinder, a vehicle body, a frame and a connecting sleeve, a second connecting rod is welded to the right side of the vehicle body, a third connecting rod is movably arranged on the top of the second connecting rod, a first oil cylinder is arranged on the side of the right side of the vehicle body close to the second connecting rod, one end of the first oil cylinder and one end of the third connecting rod are connected to each other, one end of the third connecting rod is connected to the first connecting rod, and a frame is welded to the bottom of the first connecting rod. This patent realizes that the height of the machine can be adjusted according to actual conditions by providing the first connecting rod, the second connecting rod, the third connecting rod and the first oil cylinder. Therefore, when in use, by starting the first oil cylinder, the first oil cylinder will drive the third connecting rod to rotate, the third connecting rod will drive the second connecting rod to move, and the second connecting rod will drive the frame to move, thereby achieving the purpose of adjusting the height of the machine.

[0004] However, there are still some problems in actual use: 1. The current traditional film laying device relies heavily on manual operation in the laying of ground film. When carrying out the ground film laying operation, it often requires multiple farmers to cooperate with each other to complete the process of fixing and laying the ground film. This not only consumes a lot of human resources, but also the degree of cooperation between farmers will also affect the laying efficiency and quality.

[0005] 2. To ensure the stability of the mulch film, both sides of the mulch film must be covered with soil to fix it. This process requires farmers to bend over or squat, and continue to perform repetitive actions such as shoveling and covering the soil, which greatly increases the labor intensity. Long-term high-intensity labor can easily cause farmers to become physically fatigued, especially the waist and back are under great pressure, which may cause a series of physical discomforts.

[0006] In view of this, we propose a ground film laying device for agricultural planting. Summary of the invention

[0007] The purpose of the present invention is to provide a film laying device for agricultural planting, so as to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention aims to provide a film laying device for agricultural planting, including a mobile trolley. A placing frame is provided on the top of the mobile trolley. An extension arm is provided on one side of the placing frame. A convex plate is provided at the bottom of the extension arm. A film roll is provided on one side of the convex plate. Connecting plates are provided on both sides of the bottom of the convex plate. Wedge blocks are provided at the ends of the connecting plates. A finishing component is provided at the end of the film roll. The finishing component includes a first cylinder provided on the top of the convex plate. The piston rod at the end of the first cylinder penetrates through the convex plate and a frame body is provided at the end. A fixed roller is provided inside the frame body. A movable roller is provided above the fixed roller. A compression spring is provided between the movable roller and the frame body. The movable roller is attached to the top of the fixed roller under the action of the compression spring. A fixing component is provided at the end of the convex plate. The fixing component is used to press the end of the film roll. A pressing edge component is provided at the center of the convex plate. A soil burying component is provided on one side of the pressing edge component. The pressing edge component and the soil burying component move relative to each other.

[0009] As a further improvement of the technical solution, the fixing component includes a second cylinder provided at the end of the convex plate. The piston rod at the end of the second cylinder penetrates through the convex plate and a pressing plate is provided at the end. When laying the film, control the piston rod at the end of the second cylinder to drive the pressing plate to move to fit the ground.

[0010] As a further improvement of the technical solution, pressing teeth are provided at the bottom of the pressing plate. The pressing teeth increase the friction of the film placed between the pressing plate and the ground. Through holes are provided at the top of the pressing plate. The through holes are arranged in an array. Fixing nails are inserted through the through holes to fix the end of the film.

[0011] As a further improvement of the technical solution, the pressing edge component includes a motor provided below the convex plate. A semi-gear is provided at the output end of the motor. A first rack is provided on one side of the semi-gear. When the semi-gear rotates, it drives the first rack to reciprocate in the vertical direction. A pressing edge block is provided at the bottom of the first rack.

[0012] As a further improvement of the technical solution, the pressing edge block is in an inverted triangular shape. An arc chamfer is provided at the bottom of the pressing edge block.

[0013] As a further improvement of the technical solution, a column cylinder is provided above the first rack. A sliding rod is slidably provided on the inner wall of the column cylinder. The sliding rod is fixed to the top of the first rack. A telescopic spring is provided between the column cylinder and the sliding rod.

[0014] As a further improvement of the technical solution, the soil covering component includes a second rack provided on the other side of the half gear. A moving frame is provided below the second rack, and a rotating rod is provided inside the moving frame. The rotating rod penetrates the moving frame and rotates inside it.

[0015] As a further improvement of the technical solution, a shovel plate is provided on the surface of the rotating rod. The shovel plate rotates coaxially with the rotating rod. A torsion spring is provided between the moving frame and the rotating rod. The rotating rod drives the shovel plate to always be perpendicular to the ground under the action of the torsion spring.

[0016] As a further improvement of the technical solution, a hollow column is provided above the second rack. A long rod slides inside the inner wall of the hollow column. The long rod is fixed to the top of the second rack. An elastic member is provided between the hollow column and the long rod.

[0017] As a further improvement of the technical solution, fixed gears are provided on both sides of the surface of the rotating rod. A moving rack slides above the fixed gears. When the moving rack moves in the vertical direction, it fits against the end of the wedge block. The moving rack moves horizontally under the extrusion force of the wedge block. When the moving rack moves, it drives the fixed gears to mesh and rotate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this agricultural planting ground film laying device, the moving trolley is moved above the field where the ground film needs to be laid. One side of the ground film is stretched to one side of the field. The piston rod at the end of the second cylinder is controlled to drive the pressing plate to move in the vertical direction, so that the pressing plate presses the ground and fixes it on the surface of the field. The fixing operation can be completed by a single person. By providing pressing teeth at the bottom of the pressing plate, when the pressing plate moves close to the ground film, the pressing teeth first contact the ground film. The end of the ground film is inserted into the soil under the pressure of the pressing teeth, so that the ground film remains flat during the pressing process. After the pressing is completed, fixing nails are sequentially inserted into the through holes, thereby completing the rapid fixing of the end of the ground film, improving the operation efficiency and ensuring the aesthetics of the ground film laying.

[0019] 2. In this agricultural planting ground film laying device, by controlling the output shaft of the motor to drive the half gear to rotate, when the half gear rotates, it drives the first rack to move in the vertical direction. When the first rack drives the edge pressing block to move downward in the vertical direction, the sliding rod slides on the inner wall of the cylinder under the pulling force, and at the same time stretches the telescopic spring. At this time, the edge pressing block moves to the surface of the ground film. When the edge pressing block continues to move downward, the edge pressing block squeezes both sides of the ground film, pressing both sides of the ground film into the soil of the field, thereby realizing the automatic sealing operation of both sides of the ground film and reducing the labor intensity of the operators.

[0020] 3. In the agricultural planting plastic film laying device, when the output shaft of the motor drives the half gear to rotate, the half gear drives the second rack to move vertically. When the second rack moves downward vertically, the second rack pulls the long rod to slide on the inner wall of the hollow column. During the sliding process of the long rod, the elastic member is stretched. When the second rack moves, it drives the moving frame to move. The shoveling plate provided below the moving frame is inserted into the soil of the field. When the moving rack moves to the wedge-shaped block, the moving rack is extruded by the wedge-shaped block and moves on the top of the fixed gear. During the movement of the moving rack, it drives the fixed gear to rotate, so that the rotating rod drives the shoveling plate to rotate to scatter the soil, and the soil falls into the groove for automatic filling, strengthening and sealing the two sides of the pressing block, thereby improving the stability of the plastic film. Brief Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional view of the overall structure of the present invention; Figure 3 is a schematic diagram of the structure of the fixed roller of the present invention; Figure 4 is a schematic diagram of the structure of the convex plate of the present invention; Figure 5 is a schematic diagram of the structure of the fixing component of the present invention; Figure 6 is a cross-sectional view of the edge pressing component of the present invention; Figure 7 is a schematic diagram of the structure of the soil burying component of the present invention; Figure 8 is a partial schematic diagram of the soil burying component of the present invention.

[0022] The meanings of the various reference numerals in the figure are as follows: 100, mobile trolley; 101, placement frame; 102, extension arm; 200, convex plate; 201, plastic film roll; 202, wedge-shaped block; 203, first cylinder; 204, frame body; 205, fixed roller; 206, movable roller; 207, compression spring; 300, fixing component; 301, second cylinder; 302, pressing plate; 303, pressing teeth; 304, through hole; 400, edge pressing component; 401, motor; 402, half gear; 403, first rack; 404, cylinder; 405, sliding rod; 406, telescopic spring; 407, edge pressing block; 500, soil burying component; 501, second rack; 502, hollow column; 503, long rod; 504, elastic member; 505, moving frame; 506, rotating rod; 507, shoveling plate; 508, torsion spring; 509, fixed gear; 510, moving rack. Specific Embodiments

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 a limitation to the present invention.

[0025] The purpose of this embodiment is to provide a device for laying agricultural planting mulch film. Refer to Figures 1-8 As shown, it includes a mobile trolley 100. A placement frame 101 is provided on the top of the mobile trolley 100. An extension arm 102 is provided on one side of the placement frame 101. A convex plate 200 is provided at the bottom of the extension arm 102. A mulch film roll 201 is provided on one side of the convex plate 200. Connecting plates are provided on both sides of the bottom of the convex plate 200, and wedge-shaped blocks 202 are provided at the ends of the connecting plates. A finishing component is provided at the end of the mulch film roll 201. The finishing component includes a first cylinder 203 provided on the top of the convex plate 200. The piston rod at the end of the first cylinder 203 penetrates through the convex plate 200 and a frame body 204 is provided at the end. A fixed roller 205 is provided inside the frame body 204. A movable roller 206 is provided above the fixed roller 205. A compression spring 207 is provided between the movable roller 206 and the frame body 204. The movable roller 206 is in contact with the top of the fixed roller 205 under the action of the compression spring 207. A fixing component 300 is provided at the end of the convex plate 200. The fixing component 300 is used to press the end of the mulch film roll 201. A edge pressing component 400 is provided at the center of the convex plate 200. A soil burying component 500 is provided on one side of the edge pressing component 400. The edge pressing component 400 and the soil burying component 500 move relative to each other.

[0026] Considering that when laying the ground film, at least two operators are required to work together. One operator fixes the end of the ground film, and the other operator lays the ground film, resulting in a large labor intensity and low efficiency. Therefore, the fixing component 300 includes a second cylinder 301 provided at the end of the convex plate 200. The piston rod at the end of the second cylinder 301 penetrates through the convex plate 200 and a pressing plate 302 is provided at the end. When laying the film, control the piston rod of the second cylinder 301 to drive the pressing plate 302 to move to fit the ground. During the process of laying the ground film, by stretching one side of the ground film to one side of the field, control the piston rod at the end of the second cylinder 301 to drive the pressing plate 302 to move in the vertical direction, so that the pressing plate 302 presses the ground to fix it on the surface of the field. The fixing operation can be completed by a single person, reducing the collaborative operation, thereby improving the efficiency of the ground film laying operation.

[0027] Considering that due to the uneven distribution of the field soil, when the ground film is pressed and fixed by the pressing plate 302, the ground film cannot completely fit the surface of the field soil, resulting in the ground film not being pressed tightly, resulting in wrinkles during the laying process of the ground film, affecting the aesthetics of the ground film laying. Therefore, pressing teeth 303 are provided at the bottom of the pressing plate 302. The pressing teeth 303 increase the friction force of the ground film placed between the pressing plate 302 and the ground. Through holes 304 are formed in the top of the pressing plate 302. The through holes 304 are arranged in an array. Fixing nails are inserted through the through holes 304 to fix the end of the ground film. By providing the pressing teeth 303 at the bottom of the pressing plate 302, when the pressing plate 302 moves towards the ground film, the pressing teeth 303 first come into contact with the ground film, and the end of the ground film is inserted into the soil under the pressure of the pressing teeth 303, so that the ground film remains flat during the pressing process. After the pressing is completed, fixing nails are sequentially inserted into the inside of the through holes 304, thereby completing the rapid fixing of the end of the ground film, improving the operation efficiency and ensuring the aesthetics of the ground film laying.

[0028] During the process of laying the plastic film, in order to ensure the tightness of the plastic film so that the plastic film covering can increase the soil temperature, which helps to raise the ground temperature and thus avoid freezing damage to crops. Therefore, the edge pressing component 400 includes a motor 401 provided below the convex plate 200. A semi-gear 402 is provided at the output end of the motor 401. A first rack 403 is provided on one side of the semi-gear 402. When the semi-gear 402 rotates, it drives the first rack 403 to reciprocate in the vertical direction. A pressing block 407 is provided at the bottom of the first rack 403. The pressing block 407 is in an inverted triangular shape, and an arc chamfer is provided at the bottom of the pressing block 407. A column cylinder 404 is provided above the first rack 403. A sliding rod 405 is slidably provided on the inner wall of the column cylinder 404. The sliding rod 405 is fixed to the top of the first rack 403. A telescopic spring 406 is provided between the column cylinder 404 and the sliding rod 405. When the end of the plastic film is fixed, the mobile trolley 100 is controlled to move horizontally. During the movement of the mobile trolley 100, the plastic film roll 201 is subjected to a tensile force to flatten the surface of the field. In order to prevent the plastic film from being blown up during the flattening process and affecting the film laying efficiency, the output shaft of the motor 401 is controlled to drive the semi-gear 402 to rotate. When the semi-gear 402 rotates, it drives the first rack 403 to move in the vertical direction. When the first rack 403 drives the pressing block 407 to move downward in the vertical direction, the sliding rod 405 is pulled to slide on the inner wall of the column cylinder 404, and at the same time, the telescopic spring 406 is stretched. At this time, the pressing block 407 moves to the surface of the plastic film. When the pressing block 407 continues to move downward, the pressing block 407 squeezes both sides of the plastic film, pressing both sides of the plastic film into the soil of the field, thus realizing the automatic sealing operation of both sides of the plastic film, reducing the labor intensity of the operators. When the external force received by the first rack 403 disappears, the sliding rod 405 drives the first rack 403 to move upward in the vertical direction under the action of the restoring force of the telescopic spring 406. Since the pressing block 407 is in an inverted triangular shape, the pressing block 407 can quickly move away from the surface of the plastic film. When the pressing block 407 reciprocates to press both sides of the plastic film, the tightness during the plastic film laying process can be ensured, and the sealing effect can be improved.

[0029] When the pressing and sealing of the plastic film is completed by pressing the plastic film with the pressing block 407, it is necessary to fill the groove formed during the pressing process to improve the stability of the plastic film. Therefore, the soil burying component 500 includes a second rack 501 provided on the other side of the half gear 402. A moving frame 505 is provided below the second rack 501. A rotating rod 506 is provided inside the moving frame 505. The rotating rod 506 penetrates through the moving frame 505 and rotates inside it. A hollow column 502 is provided above the second rack 501. A long rod 503 is slidably provided on the inner wall of the hollow column 502. The long rod 503 is fixed to the top of the second rack 501. An elastic member 504 is provided between the hollow column 502 and the long rod 503. A shovel plate 507 is provided on the surface of the rotating rod 506. The shovel plate 507 rotates coaxially with the rotating rod 506. A torsion spring 508 is provided between the moving frame 505 and the rotating rod 506. The rotating rod 506 drives the shovel plate 507 to always be perpendicular to the ground under the action of the torsion spring 508. When the output shaft of the motor 401 drives the half gear 402 to rotate, the half gear 402 drives the second rack 501 to move in the vertical direction. When the second rack 501 moves downward in the vertical direction, the second rack 501 pulls the long rod 503 to slide on the inner wall of the hollow column 502. The long rod 503 stretches the elastic member 504 during the sliding process. When the second rack 501 moves, it drives the moving frame 505 to move. The shovel plate 507 provided below the moving frame 505 is inserted into the soil of the field. By rotating the rotating rod 506 to drive the shovel plate 507 to stir, the soil on one side of the shovel plate 507 is scattered, so that the scattered soil falls into the groove for filling, thereby strengthening and sealing the sealing parts on both sides of the pressing block 407, and improving the stability of the plastic film.

[0030] In order to quickly fill the groove formed by the pressing block 407 pressing the plastic film, therefore, fixed gears 509 are provided on both sides of the surface of the rotating rod 506. A moving rack 510 is slidably provided above the fixed gears 509. When the moving rack 510 moves in the vertical direction, it fits with the end of the wedge block 202. The moving rack 510 moves in the horizontal direction under the extrusion force of the wedge block 202. When the moving rack 510 moves, it drives the fixed gears 509 to mesh and rotate. When the second rack 501 drives the moving frame 505 to move downward in the vertical direction, when the moving rack 510 moves to the wedge block 202, the moving rack 510 moves on the top of the fixed gears 509 under the extrusion force of the wedge block 202. During the movement of the moving rack 510, it drives the fixed gears 509 to rotate, so that the rotating rod 506 drives the shovel plate 507 to rotate to scatter the soil, so that the soil falls into the groove for automatic filling, reducing the labor intensity of the operators and improving the backfilling efficiency at the same time.

[0031] During specific use, the mobile trolley 100 is controlled to move above the field where the plastic film needs to be laid. By stretching one side of the plastic film to one side of the field, the piston rod at the end of the second cylinder 301 is controlled to drive the pressing plate 302 to move in the vertical direction, so that the pressing plate 302 presses the ground to fix it on the surface of the field. The fixing operation can be completed by a single person. By arranging pressing teeth 303 at the bottom of the pressing plate 302, when the pressing plate 302 moves towards the plastic film, the pressing teeth 303 first contact the plastic film, and the end of the plastic film is inserted into the soil under the pressure of the pressing teeth 303, so that the plastic film remains flat during the pressing process. After the pressing is completed, fixing nails are sequentially inserted into the through holes 304, thereby quickly fixing the end of the plastic film, improving the operation efficiency and ensuring the aesthetics of the plastic film laying; When the end of the plastic film is fixed, the mobile trolley 100 is controlled to move horizontally for automatic plastic film laying operation. During the movement of the mobile trolley 100, the plastic film roll 201 is subjected to a tensile force to lay flat on the surface of the field. By controlling the output shaft of the motor 401 to drive the half gear 402 to rotate, when the half gear 402 rotates, it drives the first rack 403 to move in the vertical direction. When the first rack 403 drives the edge pressing block 407 to move downward in the vertical direction, the sliding rod 405 is subjected to a tensile force and slides on the inner wall of the cylinder 404, and at the same time stretches the telescopic spring 406. At this time, the edge pressing block 407 moves to the surface of the plastic film. When the edge pressing block 407 continues to move downward, the edge pressing block 407 squeezes both sides of the plastic film, pressing both sides of the plastic film into the soil, thereby realizing the automatic sealing operation of both sides of the plastic film, reducing the labor intensity of the operators. When the external force received by the first rack 403 disappears, the sliding rod 405 drives the first rack 403 to move upward in the vertical direction under the action of the restoring force of the telescopic spring 406. Since the edge pressing block 407 is in an inverted triangular shape, the edge pressing block 407 can quickly move away from the surface of the plastic film. When the edge pressing block 407 reciprocates to press both sides of the plastic film, the sealing performance during the plastic film laying process can be guaranteed, and the sealing effect is improved; When the output shaft of the motor 401 drives the half gear 402 to rotate, the half gear 402 drives the second rack 501 to move in the vertical direction. When the second rack 501 moves downward in the vertical direction, the second rack 501 pulls the long rod 503 to slide on the inner wall of the hollow column 502. During the sliding process of the long rod 503, the elastic member 504 is stretched. When the second rack 501 moves, it drives the moving frame 505 to move. The shoveling plate 507 provided below the moving frame 505 is inserted into the soil of the field. When the moving rack 510 moves to the wedge-shaped block 202, the moving rack 510 is subjected to the extrusion force of the wedge-shaped block 202 and moves on the top of the fixed gear 509. During the movement of the moving rack 510, it drives the fixed gear 509 to rotate, so that the rotating rod 506 drives the shoveling plate 507 to rotate to scatter the soil, so that the soil falls into the groove for automatic filling, and at the same time strengthens the sealing of the two sides of the edge pressing block 407, thereby improving the stability of the plastic film.

[0032] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An agricultural planting ground film laying device, characterized in that: It includes a mobile trolley, on the top of which there is a placement frame. On one side of the placement frame, there is an extension arm. At the bottom of the extension arm, there is a convex plate. On one side of the convex plate, there is a plastic film roll. On both sides at the bottom of the convex plate, there are connecting plates, and at the ends of the connecting plates, there are wedge-shaped blocks. At the end of the plastic film roll, there is an arrangement component, which includes a first cylinder arranged on the top of the convex plate. The piston rod at the end of the first cylinder penetrates the convex plate and is provided with a frame body at its end. Inside the frame body, there is a fixed roller. Above the fixed roller, there is a movable roller. Between the movable roller and the frame body, there is a compression spring. The movable roller is in contact with the top of the fixed roller under the action of the compression spring. At the end of the convex plate, there is a fixing component, which is used to press the end of the plastic film roll. At the center of the convex plate, there is a edge pressing component. On one side of the edge pressing component, there is a soil burying component, and the edge pressing component and the soil burying component move relative to each other.

2. The agricultural planting ground film laying device according to claim 1, wherein: The fixing component includes a second cylinder arranged at the end of the convex plate. The piston rod at the end of the second cylinder penetrates the convex plate and is provided with a pressing plate at its end. When laying the film, control the piston rod at the end of the second cylinder to drive the pressing plate to move to be in contact with the ground.

3. The agricultural planting ground film laying device according to claim 2, characterized in that: There are pressing teeth at the bottom of the pressing plate, which increase the friction force of the plastic film placed between the pressing plate and the ground. Through holes are opened at the top of the pressing plate, and the through holes are arranged in an array. Fixing nails are inserted through the through holes to fix the end of the plastic film.

4. The device for laying agricultural planting mulch film according to claim 1, characterized in that: The edge pressing component includes a motor arranged below the convex plate. The output end of the motor is provided with a semi-gear. On one side of the semi-gear, there is a first rack. When the semi-gear rotates, it drives the first rack to reciprocate in the vertical direction. At the bottom of the first rack, there is an edge pressing block.

5. The device for laying agricultural planting mulch film according to claim 4, characterized in that: The edge pressing block is in the shape of an inverted triangle, and there is an arc chamfer at the bottom of the edge pressing block.

6. The film laying device for agricultural planting according to claim 4, wherein: Above the first rack, there is a column cylinder. A sliding rod is slidably arranged on the inner wall of the column cylinder. The sliding rod is fixed to the top of the first rack. Between the column cylinder and the sliding rod, there is a telescopic spring.

7. The device for laying agricultural planting mulch film according to claim 4, wherein: The soil burying component includes a second rack arranged on the other side of the semi-gear. Below the second rack, there is a moving frame. Inside the moving frame, there is a rotating rod, which penetrates the moving frame and rotates inside it.

8. The device for laying agricultural planting mulch film according to claim 7, characterized in that: A shoveling plate is arranged on the surface of the rotating rod, and the shoveling plate rotates coaxially with the rotating rod. Between the moving frame and the rotating rod, there is a torsion spring. The rotating rod drives the shoveling plate to always be perpendicular to the ground under the action of the torsion spring.

9. The device for laying agricultural planting mulch film according to claim 7, wherein: Above the second rack, there is a hollow column. A long rod is slidably arranged on the inner wall of the hollow column. The long rod is fixed to the top of the second rack. Between the hollow column and the long rod, there is an elastic member.

10. The device for laying agricultural planting mulch film according to claim 8, wherein: Fixed gears are arranged on both sides of the surface of the rotating rod. A moving rack slides above the fixed gears. When the moving rack moves in the vertical direction, it is in contact with the end of the wedge-shaped block. The moving rack moves horizontally under the extrusion force of the wedge-shaped block. When the moving rack moves, it drives the fixed gears to mesh and rotate.

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