An automatic film laying and film cutting seeding machine and a film laying and seeding method

Abstract

The present invention relates to the technical field of seeding equipment, and particularly relates to an automatic film-laying and film-breaking seeding machine and a film-laying and seeding method. The automatic film-laying and film-breaking seeding machine includes a frame, a film-laying device and a film-breaking and soil-covering device. The film-laying device clamps the roll film by using a clamping channel formed by a film-unfolding roller and a clamping roller, and drives the film-unfolding roller to rotate through a sprocket and chain transmission structure by a driving roller, thereby realizing active film feeding and film laying. The film-breaking and soil-covering device uses a first power cylinder, a second power cylinder, a first driving arm, a second driving arm and a connecting arm to form a five-bar linkage mechanism, and drives a soil-turning plate with shovel teeth to move through the common drive of the first power cylinder and the second power cylinder, thereby realizing that the soil-turning plate scoops up and covers the ground soil while cutting off the plastic film and the drip irrigation tape. Under the combined action of the two, the automatic film-laying and film-breaking seeding machine realizes the active film feeding of the film-laying seeding machine and the autonomous operation of cutting the film, breaking the tape and covering the soil, greatly improving the field operation efficiency and reducing the labor cost.

Description

Technical Field

[0001] The invention relates to the technical field of sowing equipment, and in particular to an automatic film-laying and film-breaking seeder and a film-laying and sowing method. Background Art

[0002] Film-laying sowing technology can effectively increase ground temperature, keep warm, reduce water loss, and inhibit weed growth. It can help crops resist low temperature, drought and other harsh environments that are not conducive to crop growth during the seedling stage. It can ensure the survival rate of seedlings and effectively expand the planting area of crops such as cotton and corn in the arid and cold regions of the north.

[0003] In the prior art, when implementing the film-laying sowing technology, a film-laying sowing machine is usually used for the operation. However, the existing film-laying sowing machine has a low degree of automation and still requires a large amount of manual input in actual production. When sowing in the field to the edge of the field, it is often necessary to raise the sowing machine and manually break the film and belt; after sowing and changing rows, it is also necessary to manually lay the film, spread the film, cover the soil, etc., which has high labor costs and seriously limits the operation efficiency.

[0004] In addition, the existing automatic film laying and cutting machines have the following problems: 1. The film cutting mechanism has a complex structure and poor adaptability to field operations. It is usually equipped with independent film holding mechanisms such as air suction, and has high production and maintenance costs; 2. The film pressing and covering mechanism is easily affected by the field operation environment. The covering effect is not ideal during actual work, and the film is easily damaged during film pressing operation; 3. When the traditional film laying and cutting machine is installed on a seed drill, interference is likely to occur between the various mechanisms, the adaptability of the whole machine is poor, and the increase in parts leads to high power consumption during operation.

[0005] After searching, Chinese patent document CN107624290A discloses a soil-covering film-laying direct seeding machine. The soil-covering film-laying direct seeding machine sets a rolled ground film on a film-rolling roller, allowing the outer end of the rolled ground film to extend forward from the bottom end of the film-rolling roller, bypass the top and front end of the film-unrolling roller, and the bottom end of the film-unrolling roller extends backward and then passes under the film-pressing roller, and then the film-pressing roller is placed on the ground film below it under the action of gravity, and the ground film is fixed on the ground of the farmland where the film needs to be laid, and then a tractor or other traction equipment is used to pull the frame from the front to move the frame forward. At this time, the ground film will be pulled open as the frame moves forward, and at the same time, the ground film will pull the film-rolling roller to rotate clockwise. The function of the film-unrolling roller is to fully unfold the ground film before laying it on the ground.

[0006] However, the above-mentioned soil-covering and film-laying direct seeding machine has problems such as complex structure, incomplete cutting of the ground film, and poor compatibility with the seed drill. Affected by the field working environment, the working effect is not ideal during actual working process.

[0007] For another example, a fully automatic film laying, soil dividing, and film cutting seeding machine is disclosed in Chinese Patent Document CN111771473A. The fully automatic film laying, soil dividing, and film cutting seeding machine is provided with a film laying mechanism on the frame. The film laying mechanism is used to place the film. After replacing the film, the head of the film is passed through the clamping device and clamped by the clamping device. When sowing, the frame lands on the ground, and the soil stored in the soil storage part of the soil hopper is poured onto the film between the film laying mechanism and the clamping device, thus achieving the function of pressing the end of the film. Then the clamping device remains open to allow the film to continuously pass through the clamping device, and the soil spreading device is located above the film.

[0008] However, during the actual use of the above-mentioned fully automatic film laying, soil dividing, and film cutting seeding machine, the film cutting knife cannot completely cut the film, resulting in incomplete cutting of the plastic film and unstable operation effect.

[0009] For another example, a plastic film covering machine capable of quickly cutting the covered film is disclosed in Chinese Patent Document CN213719058U. The plastic film covering machine capable of quickly cutting the covered film is provided with a pull handle, a movable block, a hinged rod, an upper rotating frame, a lower rotating frame, a cutting knife, and a tension spring. After the plastic film is laid, the pull handles on both sides are pulled. The pull handles will pull the movable block, and the movable block will pull the hinged rods on both sides to rotate. Under the action of the hinge, the upper rotating frame and the lower rotating frame will rotate around their hinge points, and the cutting knife installed on its upper part will also rotate until the two cutting knives coincide, and the plastic film is cut. Then the pull handles are released, and under the action of the tension spring, the upper rotating frame and the lower rotating frame return to their original states. This structure realizes the function of quickly cutting the plastic film.

[0010] However, during the actual use of the film cutting structure in the above-mentioned plastic film covering machine, the film cannot be completely cut either, resulting in incomplete cutting of the plastic film and unstable operation effect.

[0011] In summary, during the implementation of the film laying and seeding technology, how to design a film laying and seeding device to solve the problems of manual film pressing and soil covering at the head of the field and manual film cutting and soil covering at the end of the field, realize automatic film laying and film cutting, improve the operation effect of film laying and film cutting, and further improve the field operation efficiency and reduce the labor cost has become an urgent technical problem for those skilled in the art. Summary of the Invention

[0012] The purpose of the present invention is to provide a film laying and seeding device during the implementation of the film laying and seeding technology to realize automatic film laying and film cutting, improve the operation effect of film laying and film cutting, and further improve the field operation efficiency and reduce the labor cost.

[0013] To achieve the above purpose, the present invention adopts the following scheme: A film laying and seeding machine with automatic film laying and film cutting is proposed, which includes a frame, a film laying device, and a film cutting and soil covering device;

[0014] The frame is used to carry the film laying device and the film cutting and soil covering device, and a suspension bracket for connecting the traction power equipment is arranged at the front end of the frame;

[0015] The film laying device includes a film conveying roller, a driving roller, a film spreading roller and a clamping roller all installed on the frame. The film conveying roller is used to load the roll film to be laid. The driving roller is used to drive the film spreading roller to rotate to unfold the roll film. The end of the driving roller is connected to the film spreading roller through a sprocket chain transmission structure. A clamping channel for the roll film to pass through is provided between the clamping roller and the film spreading roller. A ditching disc is arranged between the driving roller and the film spreading roller;

[0016] The film cutting and soil covering device is located behind the film laying device. The film cutting and soil covering device includes a first power cylinder, a second power cylinder, a first driving arm, a second driving arm, a connecting arm and a soil turning plate;

[0017] The cylinder bodies of the first power cylinder and the second power cylinder are both installed on the frame. The piston rod of the first power cylinder is connected to the first driving arm, and the piston rod of the second power cylinder is connected to the second driving arm;

[0018] One end of the connecting arm is hinged to the first driving arm, the other end of the connecting arm is hinged to the soil turning plate, and the second driving arm is connected to the soil turning plate;

[0019] Scraper teeth for cutting the roll film are arranged on the edge of the soil turning plate.

[0020] Preferably, the hinge shaft of the first driving arm and the connecting arm is installed on the frame. With this setting, it is convenient for the frame to bear the weight of the soil turning plate, which is beneficial for the first power cylinder to cooperate with the second power cylinder to jointly drive the soil turning plate to flip, ensuring the stability of the soil turning plate flipping, and thus improving the flexibility of the film cutting and soil covering actions.

[0021] Preferably, a limiting plate is arranged on the frame, and a sliding groove is arranged on the limiting plate. The connection part of the piston rod of the second power cylinder and the second driving arm is embedded in the sliding groove, and the sliding groove is arranged horizontally. With this setting, the sliding groove is used to limit the degree of freedom of the entire film cutting and soil covering device, which is convenient for better controlling the action of the soil turning plate, optimizing the movement track of the soil turning plate, and further improving the effect of the film cutting operation.

[0022] Preferably, soil covering discs are arranged between the film laying device and the film cutting and soil covering device, and a pair of soil covering discs are arranged in an outer eight shape along the advancing direction of the frame. With this setting, the soil covering discs are used to gather the soil on both sides of the frame, which is beneficial for adding soil to the two side edges of the laid roll film for pressing and covering, thereby ensuring that both sides of the roll film are completely fixed and sealed, and further improving the effect of the roll film laying.

[0023] Preferably, a drip irrigation tape laying device is provided at the front end of the frame. The drip irrigation tape laying device includes a drip irrigation tape reel, a drip irrigation frame support, and a drip irrigation tape furrow opener. The drip irrigation tape reel is installed above the frame through the drip irrigation frame support, and the drip irrigation tape furrow opener is installed below the frame. A sleeve for guiding the drip irrigation tape is provided on the side wall of the drip irrigation tape furrow opener. With such a setting, the drip irrigation tape laying device is used to lay the drip irrigation tape under the mulch film while laying the mulch film, further improving the utilization rate of water and fertilizer.

[0024] Preferably, a hill-drop planter is provided at the rear end of the frame. The hill-drop planter is installed on the frame through a support frame, and a seed box is provided above the hill-drop planter. With such a setting, the hill-drop planter is used to sow seeds in the soil layer under the mulch film, which is beneficial to form an automated mulch film laying and sowing operation, and further improves the operation efficiency of the mulch film laying and sowing technology.

[0025] Preferably, grip paddles are provided at both ends of the driving roller. The grip paddles are connected to the side wall of the driving roller, and the grip paddles are arranged in a circular pattern along the axis of the driving roller. With such a setting, the grip paddles are used to feedback the forward speed of the frame, which is beneficial to realizing that the rotation speed of the film spreading roller is adapted to the forward speed of the frame in real time, and then controlling the conveying speed of the mulch film to match the forward speed, further improving the laying effect of the mulch film.

[0026] Preferably, the clamping roller is installed on the frame through an adjusting bracket. An adjusting oil cylinder for adjusting the clamping channel is provided at the end of the clamping roller. The cylinder body of the adjusting oil cylinder is connected to the adjusting bracket, and the piston rod of the adjusting oil cylinder is connected to the end of the clamping roller. With such a setting, the adjusting oil cylinder cooperates with the sprocket and chain transmission structure, which is beneficial to better clamping and conveying the mulch film, effectively reducing the influence of field operation vibration and wind resistance on the mulch film laying operation, and further improving the mulch film laying effect.

[0027] Preferably, both the first power cylinder and the second power cylinder are hydraulic cylinders.

[0028] The present invention also provides a mulch film laying and sowing method using the above automatic mulch film cutting and sowing machine, including the following steps:

[0029] The mulch film laying device performs a mulch film laying operation. The free end of the mulch film enters the clamping channel formed by the film conveying roller and the film spreading roller, and unfolds along the forward direction of the frame under the drive of the driving roller to drive the film spreading roller to rotate, and is laid on the land.

[0030] The mulch film cutting and soil covering device performs a mulch film cutting operation. When changing rows at the field head or end, the first power cylinder and the second power cylinder in the mulch film cutting and soil covering device jointly drive the soil turning plate to flip towards the forward direction of the frame. The soil turning plate shovels into the soil, and the shovel teeth on the soil turning plate cut the mulch film. Subsequently, the first power cylinder and the second power cylinder continue to jointly drive the soil turning plate to flip towards the forward direction of the frame, and the soil shoveled by the soil turning plate is scattered on the already laid mulch film.

[0031] Compared with the prior art, an automatic film laying and film cutting seeder and a film laying and seeding method provided by the present invention have the following prominent substantial features and remarkable progress:

[0032] 1. In the film laying device of the automatic film laying and film cutting seeder, a clamping channel formed by a film spreading roller and a clamping roller is used to clamp the rolled film, and the film spreading roller is driven to rotate by a driving roller through a sprocket and chain transmission structure, realizing active film feeding and film laying, reducing the resistance of the rolled film to unfold, reducing the use of manual labor, improving the film laying operation efficiency in the field, effectively reducing the damage of the rolled film during the film laying process, and improving the laying effect of the rolled film in the field;

[0033] 2. In the film cutting and soil covering device of the automatic film laying and film cutting seeder, a five-bar linkage mechanism is formed by a first power cylinder, a second power cylinder, a first driving arm, a second driving arm and a connecting arm. The turning plate with shovel teeth is driven to move by the first power cylinder and the second power cylinder together, realizing that the turning plate scoops up and covers the ground soil while cutting the plastic film and drip irrigation tape, improving the operation effect of film cutting. The operation process of the film cutting and soil covering device is independent and coordinated with the film laying operation of the film laying device. Under the combined action of the two, the active film feeding and the autonomous operation of film cutting, tape cutting and soil covering of the film laying and seeding machine are realized, greatly improving the operation efficiency in the field and reducing the labor cost. Description of the Drawings

[0034] Figure 1 is a three-dimensional structural schematic diagram of an automatic film laying and film cutting seeder in an embodiment of the present invention;

[0035] Figure 2 is Figure 1 a three-dimensional structural schematic diagram of the automatic film laying and film cutting seeder in another perspective;

[0036] Figure 3 is Figure 1 the front view of the automatic film laying and film cutting seeder;

[0037] Figure 4 is Figure 3 the top view of

[0038] Figure 5 is Figure 3 the left view of

[0039] Figure 6 is Figure 5 the cross-sectional view at A-A in

[0040] Figure 7 the structural schematic diagram of the turning plate in the film cutting and soil covering device at the initial position;

[0041] Figure 8It is a schematic structural view of the soil covering plate of the film-breaking and soil covering device in the soil covering position.

[0042] Reference numerals: 1, frame; 2, film laying device; 3, film-breaking and soil covering device; 4, ditching disc; 5, soil covering disc; 6, drip irrigation tape laying device; 7, hill-drop planter; 8, seed box; 9, limiting plate; 10, sliding groove; 11, suspension bracket; 12, sprocket and chain drive structure; 21, film conveying roller; 22, driving roller; 23, film spreading roller; 24, clamping roller; 25, adjusting bracket; 26, adjusting oil cylinder; 31, first power cylinder; 32, second power cylinder; 33, first driving arm; 34, second driving arm; 35, connecting arm; 36, soil turning plate; 37, shovel tooth; 61, drip irrigation tape reel; 62, drip irrigation frame support; 63, drip irrigation tape ditching tool; 64, sleeve; 221, ground gripping flap. Specific embodiments

[0043] The following will describe the specific embodiments of the present invention in detail with reference to the accompanying drawings.

[0044] As Figures 1-8 shown, in the embodiment of the present invention, an automatic film laying, film-breaking and seeding machine is proposed, aiming to solve the problems that manual film pressing and soil covering are required at the field head and manual film breaking and soil covering are required at the field end, realizing automatic film laying and film breaking, improving the effect of film laying and film breaking operations, thereby improving the field operation efficiency and reducing the labor cost.

[0045] An automatic film laying, film-breaking and seeding machine proposed in the embodiment of the present invention can be divided into two parts according to the working principle: the film laying device forms a clamping channel by the film spreading roller and the clamping roller to clamp the rolled film, and drives the film spreading roller to rotate through the driving roller by the sprocket and chain drive structure, realizing active film conveying and laying, reducing the resistance of the rolled film to unfold, reducing the use of labor, improving the field film laying operation efficiency, effectively reducing the damage of the rolled film during the film laying process, and improving the laying effect of the rolled film in the field; the film-breaking and soil covering device forms a five-bar linkage mechanism by the first power cylinder, the second power cylinder, the first driving arm, the second driving arm and the connecting arm, and drives the soil turning plate with shovel teeth to move through the first power cylinder and the second power cylinder together, realizing that the soil turning plate scoops up and covers the ground soil while cutting the ground film and the drip irrigation tape, and improving the operation effect of film breaking.

[0046] Among them, the operation process of the film-breaking and soil covering device is independent of and coordinated with the film laying operation of the film laying device. Under the combined action of the two, the active film conveying and the autonomous operations of cutting the film, cutting the tape and covering the soil of the film laying and seeding machine are realized, greatly improving the field operation efficiency and reducing the labor cost.

[0047] Automatic film laying, film-breaking and seeding machine

[0048] As Figure 1 Combined with Figure 2As shown in the figure, an automatic film-laying and film-breaking seeding machine includes a frame 1, a film-laying device 2, and a film-breaking and soil-covering device 3. The frame 1 is used to carry the film-laying device 2 and the film-breaking and soil-covering device 3. A suspension bracket 11 for connecting a traction power device is provided at the front end of the frame 1. For example, a tractor is selected as the traction power device.

[0049] As Figure 3 shown in combination with Figure 6 the figure, the film-laying device 2 includes a film-feeding roller 21, a driving roller 22, a film-spreading roller 23, and a clamping roller 24, all of which are installed on the frame 1. The film-feeding roller 21 is used to load the roll film to be laid. The driving roller 22 is used to drive the film-spreading roller 23 to rotate to unfold the roll film. The end of the driving roller 22 is connected to the film-spreading roller 23 through a sprocket and chain transmission structure 12. There is a clamping channel for the roll film to pass between the clamping roller 24 and the film-spreading roller 23. A furrowing disc 4 is arranged between the driving roller 22 and the film-spreading roller 23. Among them, the furrowing disc 4 moves together with the frame and is used to tidy the edges of the fields on both sides of the film to be laid, so that the roll film can fit better with the field.

[0050] As Figure 3 shown in the figure, the film-breaking and soil-covering device 3 is located behind the film-laying device 2. The film-breaking and soil-covering device 3 includes a first power cylinder 31, a second power cylinder 32, a first driving arm 33, a second driving arm 34, a connecting arm 35, and a soil-turning plate 36. For example, both the first power cylinder 31 and the second power cylinder 32 are hydraulic cylinders.

[0051] As Figure 4 shown in the figure, the cylinder bodies of both the first power cylinder 31 and the second power cylinder 32 are installed on the frame 1. The piston rod of the first power cylinder 31 is connected to the first driving arm 33. The piston rod of the second power cylinder 32 is connected to the second driving arm 34.

[0052] As Figure 3 shown in the figure, one end of the connecting arm 35 is hinged to the first driving arm 33. The other end of the connecting arm 35 is hinged to the soil-turning plate 36, and the second driving arm 34 is connected to the soil-turning plate 36.

[0053] Among them, a shovel tooth 37 for cutting the roll film is provided on the edge of the soil-turning plate 36. The shovel tooth 37 is designed as a non-integral circular arc as a whole, with saw teeth at both ends. Through the mutual cooperation of the saw tooth ends with the ground, the roll film and the drip irrigation tape can be shoveled and cut at the end of the field, and the soil on the ground part can be scooped up and transferred above the laid plastic film by the arc spoon structure of the soil-turning plate 36, which is beneficial for the film-breaking and soil-covering device 3 to complete a series of movements of cutting the film - breaking the tape - covering the soil.

[0054] As Figure 3As shown, the hinge axis of the first driving arm 33 and the connecting arm 35 is installed on the frame 1. With such a setting, it is convenient for the frame 1 to bear the weight of the soil-turning plate 36, which is beneficial for the first power cylinder 31 and the second power cylinder 32 to jointly drive the soil-turning plate 36 to flip, ensuring the stability of the flipping of the soil-turning plate 36, and further enhancing the flexibility of the film-breaking and soil-covering actions.

[0055] As Figure 6 shown, a limit plate 9 is provided on the frame 1. A sliding groove 10 is provided on the limit plate 9. The connection part of the piston rod of the second power cylinder 32 and the second driving arm 34 is embedded in the sliding groove 10. The sliding groove 10 is arranged horizontally. With such a setting, the sliding groove 10 is used to limit the degrees of freedom of the entire film-breaking and soil-covering device 3, which is convenient for better controlling the movement of the soil-turning plate 36, optimizing the movement track of the soil-turning plate 36, and further enhancing the effect of the film-breaking operation.

[0056] As Figure 5 shown, a drip irrigation tape laying device 6 is provided at the front end of the frame 1. Figure 6 As shown, the drip irrigation tape laying device 6 includes a drip irrigation tape reel 61, a drip irrigation frame support 62, and a drip irrigation tape furrow opener 63. The drip irrigation tape reel 61 is installed above the frame 1 through the drip irrigation frame support 62. The drip irrigation tape furrow opener 63 is installed below the frame 1. A sleeve 64 for guiding the drip irrigation tape is provided on the side wall of the drip irrigation tape furrow opener 63. With such a setting, the drip irrigation tape laying device 6 is used to lay the drip irrigation tape under the rolled film while laying the rolled film, further enhancing the utilization rate of water and fertilizer.

[0057] As Figure 2 shown, a hill-drop seeder 7 is provided at the rear end of the frame 1. The hill-drop seeder 7 is installed on the frame 1 through a support frame. A seed box 8 is provided above the hill-drop seeder 7. With such a setting, the hill-drop seeder 7 is used to sow seeds in the soil layer under the rolled film, which is beneficial for forming an automated film-laying and sowing operation, and further improving the operation efficiency of the film-laying and sowing technology.

[0058] As Figure 1 shown, a soil-covering disc 5 is provided between the film-laying device 2 and the film-breaking and soil-covering device 3. A pair of soil-covering discs 5 are arranged in an outer-eight shape along the advancing direction of the frame 1. With such a setting, the soil-covering discs 5 are used to gather the soil on both sides of the frame 1, which is beneficial for adding soil to the two side edges of the laid rolled film for capping, thus ensuring that the two sides of the rolled film are completely fixed and sealed, and further enhancing the effect of the rolled film laying.

[0059] As Figure 3As shown in the figure, gripping paddles 221 are provided at both ends of the driving roller 22. The gripping paddles 221 are connected to the side wall of the driving roller 22. The gripping paddles 221 are arranged in a circular pattern along the axis of the driving roller 22. With such an arrangement, the gripping paddles 221 are used to feedback the forward speed of the frame 1, which is beneficial to realizing that the rotation speed of the film spreading roller 23 is adapted to the forward speed of the frame 1 in real time, and further controlling the conveying speed of the rolled film to match the forward speed, thereby further improving the laying effect of the rolled film.

[0060] As Figure 6 shown in the figure, the clamping roller 24 is installed on the frame 1 through an adjusting bracket 25. An adjusting oil cylinder 26 for adjusting the clamping channel is provided at the end of the clamping roller 24. The cylinder body of the adjusting oil cylinder 26 is connected to the adjusting bracket 25. The piston rod of the adjusting oil cylinder 26 is connected to the end of the clamping roller 24. With such an arrangement, the adjusting oil cylinder 26 cooperates with the sprocket and chain transmission structure 12, which is beneficial to better clamping and conveying the rolled film, effectively reducing the influence of field operation vibration and wind resistance on the film laying operation, and further improving the film laying effect.

[0061] An automatic film laying and film cutting seeding machine proposed in an embodiment of the present invention can complete the automatic film cutting, tape breaking and soil covering work at the field head while actively clamping and conveying the film during the film laying process, effectively solving the current method of manual film cutting, tape breaking and soil covering. Through this mechanism, the film spreading resistance during the film conveying process can be reduced, the film breaking rate can be lowered, the labor cost can be reduced, and the film laying and seeding efficiency can be effectively improved, increasing the income.

[0062] Film laying and seeding method

[0063] As Figure 7 Combined with Figure 8 shown in the figure, when an automatic film laying and film cutting seeding machine proposed in an embodiment of the present invention is used, it includes the following steps:

[0064] The film laying device 2 performs the film laying operation. The free end of the rolled film enters the clamping channel formed by the film conveying roller 21 and the film spreading roller 23, and under the drive of the driving roller to rotate the film spreading roller 23, it unfolds along the forward direction of the frame 1 and is laid on the land.

[0065] The film cutting and soil covering device 3 performs the film cutting operation. When changing rows at the field head, the first power cylinder 31 and the second power cylinder 32 in the film cutting and soil covering device 3 jointly drive the soil turning plate 36 to flip towards the forward direction of the frame 1. The soil turning plate 36 shovels into the soil, and the shovel teeth 37 on the soil turning plate 36 cut the rolled film. Subsequently, the first power cylinder 31 and the second power cylinder 32 continue to jointly drive the soil turning plate 36 to flip towards the forward direction of the frame 1, and the soil turning plate 36 sprinkles the shoveled soil on the already laid rolled film.

[0066] The present invention is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention may also have other implementation manners. For those skilled in the art, any technical solutions formed by making any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic film laying and film cutting seeder, characterized in that, It includes a frame, a film laying device and a film cutting and soil covering device; The frame is used to carry the film laying device and the film cutting and soil covering device, and a suspension bracket for connecting the traction power equipment is arranged at the front end of the frame; The film laying device includes a film conveying roller, a driving roller, a film spreading roller and a clamping roller, all of which are installed on the frame. The film conveying roller is used to load the roll film to be laid, the driving roller is used to drive the film spreading roller to rotate to unfold the roll film, the end of the driving roller is connected to the film spreading roller through a sprocket and chain transmission structure, a clamping channel for the roll film to pass through is provided between the clamping roller and the film spreading roller, and a ditching disc is arranged between the driving roller and the film spreading roller; The film cutting and soil covering device is located behind the film laying device, and the film cutting and soil covering device includes a first power cylinder, a second power cylinder, a first driving arm, a second driving arm, a connecting arm and a soil turning plate; The cylinder bodies of the first power cylinder and the second power cylinder are both installed on the frame. The piston rod of the first power cylinder is connected to the first driving arm, and the piston rod of the second power cylinder is connected to the second driving arm; One end of the connecting arm is hinged to the first driving arm, the other end of the connecting arm is hinged to the soil turning plate, and the second driving arm is connected to the soil turning plate; Cutting teeth for cutting the roll film are arranged on the edge of the soil turning plate; Wherein, the first power cylinder, the second power cylinder, the first driving arm, the second driving arm and the connecting arm form a five-bar linkage mechanism. By jointly driving the soil turning plate with the cutting teeth by the first power cylinder and the second power cylinder, the soil turning plate scoops up and covers the ground soil while cutting the plastic film and the drip irrigation tape.

2. The automatic film laying and film cutting seeder according to claim 1, wherein, The hinge shaft of the first driving arm and the connecting arm is installed on the frame.

3. The automatic film laying and film cutting seeder according to claim 2, wherein A limiting plate is arranged on the frame, a sliding groove is arranged on the limiting plate, and the connection part of the piston rod of the second power cylinder and the second driving arm is embedded in the sliding groove, and the sliding groove is arranged horizontally.

4. The automatic film laying and film cutting seeder according to claim 1, wherein A soil covering disc is arranged between the film laying device and the film cutting and soil covering device, and a pair of soil covering discs are arranged in an outer eight shape along the advancing direction of the frame.

5. The automatic film laying and film cutting seeding machine according to claim 1, wherein, A drip irrigation tape laying device is arranged at the front end of the frame. The drip irrigation tape laying device includes a drip irrigation tape roll, a drip irrigation frame support and a drip irrigation tape ditching device. The drip irrigation tape roll is installed above the frame through the drip irrigation frame support, the drip irrigation tape ditching device is installed below the frame, and a sleeve for guiding the drip irrigation tape is arranged on the side wall of the drip irrigation tape ditching device.

6. The automatic film laying and film cutting seeding machine according to claim 1, wherein, A hill-drop planter is arranged at the rear end of the frame. The hill-drop planter is installed on the frame through a support frame, and a seed box is arranged above the hill-drop planter.

7. The automatic film laying and film cutting seeding machine according to claim 1, wherein Gripping paddles are arranged at both ends of the driving roller. The gripping paddles are connected to the side wall of the driving roller, and the gripping paddles are arranged in a circular pattern along the axis of the driving roller.

8. The automatic film laying and film cutting seeder according to claim 1, characterized in that, The clamping roller is installed on the frame through an adjusting bracket. An adjusting oil cylinder for adjusting the clamping channel is arranged at the end of the clamping roller. The cylinder body of the adjusting oil cylinder is connected to the adjusting bracket, and the piston rod of the adjusting oil cylinder is connected to the end of the clamping roller.

9. The automatic film laying and film cutting seeding machine according to claim 1, characterized in that Both the first power cylinder and the second power cylinder are hydraulic cylinders.

10. The film laying and seeding method of the automatic film laying and film breaking seeding machine according to any one of claims 1-9, characterized in that, Including: The film laying device performs the film laying operation. The free end of the coiled film enters the clamping channel formed by the film conveying roller, the clamping roller and the film spreading roller. Driven by the driving roller to rotate the film spreading roller, it unfolds along the forward direction of the frame and is laid on the land. The film cutting and soil covering device performs the film cutting operation. When changing rows at the field edge, the first power cylinder and the second power cylinder in the film cutting and soil covering device jointly drive the soil turning plate to turn towards the forward direction of the frame. The soil turning plate shovels into the land, and the shovel teeth on the soil turning plate cut the coiled film. Subsequently, the first power cylinder and the second power cylinder continue to jointly drive the soil turning plate to turn towards the forward direction of the frame, and the soil shoveled by the soil turning plate is scattered on the coiled film that has been laid.

Images