Film mulching device for forage grass seedling culture

Abstract

The device comprises a mounting frame, an adjusting assembly and a supporting plate, a mounting vertical plate is fixedly mounted on the left side of the upper end of the mounting frame, a first supporting frame also located at the upper end of the mounting frame is arranged on the right side of the mounting vertical plate, and a film mulching roller is placed on the inner side of the first supporting frame; a guide roller is rotationally mounted on the inner side of the middle part of the mounting frame; an adjusting assembly connected with the first supporting frame is arranged on the outer side of the mounting vertical plate, and a U-shaped frame located on the outer side of the lower end of the mounting frame is fixedly mounted on the outer side of the lower end of the first supporting frame. The invention belongs to the technical field of forage grass seedling raising, and aims to solve the problems that in the prior art, a good seedbed leveling function is not achieved, meanwhile, the adjusting effect is poor, and seedbeds with different widths cannot be subjected to film covering work conveniently. The seedbed leveling device has the advantages that the seedbed leveling device has a good seedbed leveling function, meanwhile, the adjusting effect is improved, and seedbeds with different widths can be conveniently subjected to film covering work.

Description

Technical Field

[0001] The present invention relates to the technical field of forage seedling raising, and particularly relates to a film covering device for forage seedling raising. Background Art

[0002] During the process of forage seedling raising, film covering is an important agricultural technical measure. By covering a layer of film on the soil surface, the soil humidity can be effectively maintained, and the soil temperature can be increased, thereby creating more ideal environmental conditions for the germination of seeds and the growth of seedlings. Film covering can significantly reduce the evaporation of soil moisture and ensure that the soil maintains an appropriate humidity throughout the seedling raising period. This is particularly crucial for the germination of forage seeds because seeds need sufficient moisture to activate physiological metabolism and promote the growth of radicles and plumules during the germination process. At the same time, appropriate soil humidity can also provide good growth conditions for seedlings, enabling them to grow healthily and rapidly. At the same time, by isolating external cold air and direct sunlight, film covering can keep the soil temperature within a relatively stable and appropriate range. Appropriate soil temperature can accelerate the speed of internal physiological metabolism of seeds, shorten the germination time, and increase the germination rate.

[0003] For example, a film covering device for agricultural seedling raising with the Chinese authorized publication number of CN 119605540 A discloses that it can compact the edge of the plastic film roll during the film covering process, assist in the feeding of the plastic film roll, and cover soil on the compacted plastic film roll at the edge.

[0004] However, most of the existing film covering devices for forage seedling raising do not have a good function of leveling the seedbed. As a result, during the film covering process, large soil clods or stones on the seedbed will puncture the film, causing the film to lose its due protective effect on forage seedling raising. At the same time, the adjustment effect is poor, and it is not convenient to carry out film covering work on seedbeds of different widths. Summary of the Invention

[0005] Therefore, the present invention provides a film covering device for forage seedling raising to solve the problems existing in the prior art, such as not having a good function of leveling the seedbed, poor adjustment effect, and inconvenience in carrying out film covering work on seedbeds of different widths.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A film covering device for forage seedling raising includes an installation frame, an adjustment component, and a support plate. A mounting vertical plate is fixedly installed on the upper left side of the installation frame, and a first support frame located on the upper end of the installation frame is arranged on the right side of the mounting vertical plate. A film covering roller is placed inside the first support frame, and a guiding roller is rotatably installed inside the middle of the installation frame;

[0008] An adjusting component connected to the first support frame is arranged on the outer side of the installation vertical plate, and a U-shaped frame located on the outer side of the lower end of the installation frame is fixedly installed on the outer side of the lower end of the first support frame. A transmission component is installed in the middle of the lower end of the installation frame, and a leveling component is installed on the outer side of the transmission component;

[0009] A support plate is fixedly installed on the right side of the lower surface of the installation frame, and a film pressing roller is rotatably installed on the inner side of the lower end of the support plate. A second support frame is arranged on the right side of the film pressing roller, and a soil feeding inclined plate is fixedly installed on the outer side of the lower end of the first leveling rod.

[0010] Furthermore, driving wheels are installed at the top corners of the lower end of the installation frame, and a through groove located right below the film covering roller is formed through the middle of the installation frame.

[0011] Furthermore, the adjusting component includes an installation block, a transmission plate, an adjusting rod, and a first fixing screw. The installation block is slidably installed on the outer side of the installation vertical plate, and a transmission plate is fixedly installed on the right surface of the installation block. The outer end of the right side of the transmission plate is rotatably installed with an adjusting rod through a hinge shaft, and the adjusting rod is rotationally connected to the first support frame through a bearing.

[0012] Furthermore, a first fixing screw is arranged on the left side of the connection between the installation block and the installation vertical plate, and threaded holes adapted to the first fixing screw are equidistantly formed in the installation vertical plate.

[0013] Furthermore, limiting grooves adapted to the first support frame and the second support frame are respectively formed through the inside of the installation frame, and the first support frame and the second support frame are respectively connected to the installation frame in a sliding manner through the limiting grooves. A connecting plate is fixedly installed at the gap between the second support frame and the first support frame.

[0014] Furthermore, the transmission component includes a driving motor, a reciprocating lead screw, and a transmission block. The driving motor is installed in the middle of the lower end of the installation frame, and the output end of the driving motor is connected with the reciprocating lead screw. A transmission block is arranged on the outer side of the reciprocating lead screw, and the reciprocating lead screw is rotationally connected to the installation frame.

[0015] Furthermore, the leveling component includes a connecting vertical plate, a first leveling rod, a side plate, and a second leveling rod. The connecting vertical plate is fixedly installed on the outer side of the lower end of the transmission block, and a first leveling rod is equidistantly fixedly installed on the right side of the lower end of the connecting vertical plate. Side plates are respectively installed inside the front and rear sides of the connecting vertical plate, and a second leveling rod is equidistantly fixedly installed at the lower end of the side plates.

[0016] Furthermore, one end of the side plate away from the connecting vertical plate is connected to the U-shaped frame, and limiting strips are fixedly installed inside the U-shaped frame and the connecting vertical plate. The side plate is connected to the second leveling rod in a sliding manner.

[0017] Further, a threaded groove is penetrated and formed inside the outer side of the connecting vertical plate, and a second fixing screw adapted to the threaded groove is penetrated and arranged at the connection between the side plate and the connecting vertical plate.

[0018] Further, a third fixing screw is penetrated and installed at the connection between the side plate and the U-shaped frame, and the U-shaped frames and the side plates are arranged in one-to-one correspondence.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. By installing the vertical plate, it plays a good supporting and limiting role for the installation block and the transmission plate, facilitating the adjustment of the inclination angle of the adjusting rod by adjusting the heights of the installation block and the transmission plate, thereby facilitating the adjustment of the distance between the two groups of first support frames, facilitating the subsequent installation of film covering rollers of different sizes, and while adjusting, it can drive the two groups of U-shaped frames to respectively extract the two groups of side plates from the connecting vertical plate, facilitating the leveling of seedbeds of different sizes through the first leveling rod and the second leveling rod installed at the lower ends of the connecting vertical plate and the side plate, improving the overall adjustment convenience;

[0021] 2. The first leveling rods are fixedly installed at equal intervals on the right side of the lower end of the connecting vertical plate, and the second leveling rods are fixedly installed at equal intervals on the lower end of the side plate. Start the driving motor to drive the reciprocating lead screw to rotate inside the installation frame. At this time, the transmission block drives the connecting vertical plate to perform reciprocating motion. At the same time, the side plate fixed by the second fixing screw and the threaded groove can perform synchronous reciprocating motion with the connecting plate, so as to facilitate driving the first leveling rod and the second leveling rod in contact with the seedbed to perform reciprocating motion respectively through the connecting vertical plate and the side plate, enabling the first leveling rod and the second leveling rod to level the seedbed before overall film covering, and preventing large soil blocks or stones on the seedbed from puncturing the film;

[0022] 3. The first support frame drives the two groups of second support frames and the soil feeding inclined plates to move synchronously with the first support frame through the connecting plate, so as to facilitate the adjustment of the distance between the two groups of soil feeding inclined plates according to the size of the seedbed, facilitating the subsequent soil feeding inclined plates to gather the soil on both sides of the seedbed and cover it on both sides of the seedbed covered with the film, pressing the two sides of the film, forming an effect of automatically compacting the two sides of the film. Description of the Drawings

[0023] To more intuitively illustrate the prior art and the present application, the following exemplary drawings are given. It should be understood that the specific shapes and structures shown in the drawings generally should not be regarded as limiting conditions when implementing the present application; for example, those skilled in the art are capable of making conventional adjustments or further optimizations to the addition / deletion / attribution division of certain units, specific shapes, positional relationships, connection methods, dimensional proportional relationships, etc. based on the technical concept disclosed in the present application and the exemplary drawings.

[0024] Figure 1 The front elevation sectional view of a film covering device for forage seedling cultivation provided by some embodiments of the present invention.

[0025] Figure 2 The side elevation sectional view of a film covering device for forage seedling cultivation provided by some embodiments of the present invention.

[0026] Figure 3 The top plan sectional view of a film covering device for forage seedling cultivation provided by some embodiments of the present invention.

[0027] Figure 4 The side view of the connection between the adjusting rod and the first support frame of a film covering device for forage seedling cultivation provided by some embodiments of the present invention.

[0028] Figure 5 The top plan sectional view of the connection between the connecting vertical plate and the side plate of a film covering device for forage seedling cultivation provided by some embodiments of the present invention.

[0029] Figure 6 The front elevation sectional view of the connection between the side plate and the limiting strip of a film covering device for forage seedling cultivation provided by some embodiments of the present invention.

[0030] Figure 7 For a film covering device for forage seedling cultivation provided by some embodiments of the present invention Figure 5 The enlarged view at A.

[0031] Explanation of reference numerals:

[0032] 1. Mounting frame; 2. Driving wheel; 3. Mounting vertical plate; 4. Mounting block; 5. Transmission plate; 6. Adjusting rod; 7. First support frame; 8. Film covering roller; 9. First fixing screw; 10. Threaded hole; 11. Driving motor; 12. Reciprocating lead screw; 13. Transmission block; 14. Connecting vertical plate; 15. First leveling rod; 16. Side plate; 17. Second leveling rod; 18. U-shaped frame; 19. Limiting strip; 20. Limiting groove; 21. Guide roller; 22. Support plate; 23. Film pressing roller; 24. Connecting plate; 25. Second support frame; 26. Soil feeding inclined plate; 27. Second fixing screw; 28. Threaded groove; 29. Third fixing screw. Detailed description of the specific implementation

[0033] The following further details the present application through specific embodiments in conjunction with the accompanying drawings.

[0034] As Figures 1 to 7As shown in the figure, a film covering device for forage grass seedling raising in an embodiment of the present invention includes a film covering device for forage grass seedling raising, including a mounting frame 1, an adjusting component, and a support plate 22. A mounting vertical plate 3 is fixedly installed on the upper left side of the mounting frame 1, and a first support frame 7 located on the upper end of the mounting frame 1 is arranged on the right side of the mounting vertical plate 3. A film covering roller 8 is placed inside the first support frame 7.

[0035] Wherein, driving wheels 2 are installed at the lower end corners of the mounting frame 1, and a handrail is fixedly installed on the leftmost side of the upper surface of the mounting frame 1 by screws, which is convenient to drive the whole to move through the handrail and the driving wheels 2, so as to facilitate convenient film covering work.

[0036] At the same time, fixing rings are rotatably installed at the upper ends of both sides of the first support frame 7 through hinge shafts, and fixing bolts are arranged at the connection between the fixing rings and the first support frame 7. When installing and replacing the film covering roller 8, only need to turn up the fixing ring upwards to make the upper end of the first support frame 7 open, then put the film covering roller 8 into the first support frame 7, and then limit the film covering roller 8 through the fixing ring and the fixing bolt. The film covering roller 8 can rotate in the first support frame 7 and the fixing ring during film covering.

[0037] A guiding roller 21 is rotatably installed inside the middle of the mounting frame 1, and a through groove located right below the film covering roller 8 is formed through the middle of the mounting frame 1. The guiding roller 21 is located in the through groove. A support plate 22 is fixedly installed on the right side of the lower surface of the mounting frame 1, and a film pressing roller 23 is rotatably installed inside the lower end of the support plate 22.

[0038] Among them, the guiding roller 21 plays a good role in limiting and supporting the film during film covering. The support plate 22 plays a good role in installing and supporting the film pressing roller 23, so that the film pressing roller 23 can cover the film on the seedbed, ensuring the fitting effect between the film and the seedbed, and at the same time the flatness of the film, and avoiding wrinkles of the film due to human operation, wind force and other factors during the film covering process.

[0039] An adjusting component connected to the first support frame 7 is arranged outside the mounting vertical plate 3. The adjusting component includes a mounting block 4, a transmission plate 5, an adjusting rod 6, and a first fixing screw 9. The mounting block 4 is slidably installed outside the mounting vertical plate 3, and a transmission plate 5 is fixedly installed on the right surface of the mounting block 4. The outer end of the right end of the transmission plate 5 is rotatably installed with an adjusting rod 6 through a hinge shaft, and the adjusting rod 6 is rotationally connected to the first support frame 7 through a bearing.

[0040] Among them, the mounting vertical plate 3 plays a good role in supporting and limiting the mounting block 4 and the transmission plate 5, which is convenient to adjust the inclination angle of the adjusting rod 6 by adjusting the heights of the mounting block 4 and the transmission plate 5, and further facilitates the function of adjusting the distance between the two first support frames 7, and is convenient for subsequent installation of film covering rollers 8 of different sizes.

[0041] Meanwhile, a first fixing screw 9 is arranged on the left side of the connection between the mounting block 4 and the mounting vertical plate 3, and threaded holes 10 adapted to the first fixing screw 9 are equally spaced inside the mounting vertical plate 3. When adjusting the heights of the mounting block 4 and the transmission plate 5, first adjust the mounting block 4 to a specified height outside the mounting vertical plate 3, and then rotate and insert the first fixing screw 9 into the mounting block 4 and the threaded holes 10, so that the first fixing screw 9 is threadedly connected to the mounting block 4 and the threaded holes 10 respectively, thereby fixing the mounting block 4, so as to achieve the purpose of fixing the angle of the adjusted adjusting rod 6 and the position of the first support frame 7. A U-shaped frame 18 located outside the lower end of the mounting frame 1 is fixedly installed on the outer side of the lower end of the first support frame 7, which facilitates driving the position of the U-shaped frame 18 to be adjusted while adjusting.

[0042] A transmission assembly is installed in the middle of the lower end of the mounting frame 1. The transmission assembly includes a driving motor 11, a reciprocating lead screw 12 and a transmission block 13. The driving motor 11 is installed in the middle of the lower end of the mounting frame 1, and the output end of the driving motor 11 is connected to the reciprocating lead screw 12. A transmission block 13 is arranged on the outer side of the reciprocating lead screw 12, and the reciprocating lead screw 12 is connected to the mounting frame 1 in a rotating manner.

[0043] Among them, the driving motor 11 plays a good transmission role for the reciprocating lead screw 12, which facilitates driving the reciprocating lead screw 12 to rotate inside the mounting frame 1 through the driving motor 11, so that the reciprocating lead screw 12 is threadedly connected to the transmission block 13, and it is convenient to drive the transmission block 13 to reciprocate on the outer side of the reciprocating lead screw 12.

[0044] A leveling assembly is installed outside the transmission assembly. The leveling assembly includes a connecting vertical plate 14, a first leveling rod 15, side plates 16 and a second leveling rod 17. The first leveling rods 15 are equally spaced and fixedly installed on the right side of the lower end of the connecting vertical plate 14. The side plates 16 are respectively installed inside the front and rear sides of the connecting vertical plate 14, and the second leveling rods 17 are equally spaced and fixedly installed at the lower ends of the side plates 16.

[0045] Among them, one end of the side plate 16 away from the connecting vertical plate 14 is connected to the U-shaped frame 18. Under the action of the connecting vertical plate 14 and the U-shaped frame 18, the two side plates 16 can be stably installed on the front and rear sides of the connecting vertical plate 14 respectively, which facilitates the installation of the second leveling rod 17, so that the second leveling rod 17 and the first leveling rod 15 can level the seedbed while moving as a whole, and prevent large soil blocks or stones on the seedbed from puncturing the film.

[0046] Meanwhile, the size of the second leveling rod 17 is smaller than that of the first leveling rod 15, which facilitates the second leveling rod 17 to move along with the movement of the side plate 16, prevents the first leveling rod 15 from blocking the movement of the second leveling rod 17, and does not affect the leveling effect of the second leveling rod 17 on the seedbed.

[0047] Both the inside of the U-shaped frame 18 and the connecting vertical plate 14 are fixedly installed with limit strips 19. The side plate 16 and the second leveling rod 17 are connected in a sliding manner. A threaded groove 28 is penetrated and opened in the outer side inside of the connecting vertical plate 14, and a second fixing screw 27 adapted to the threaded groove 28 is penetrated and arranged at the connection between the side plate 16 and the connecting vertical plate 14.

[0048] Among them, the limit strip 19 plays a role in limiting the side plate 16, which is convenient for smoothly extracting the corresponding length of the two groups of side plates 16 from the connecting vertical plate 14 when adjusting according to the seedbed. A third fixing screw 29 is penetrated and installed at the connection between the side plate 16 and the U-shaped frame 18, and the U-shaped frame 18 and the side plate 16 are arranged in one-to-one correspondence. The third fixing screw 29 plays a role in fixing the side plate 16, which is convenient for fixedly installing the side plate 16 inside the U-shaped frame 18. At the same time, the second fixing screw 27 is convenient for fixing the adjusted side plate 16 under the action of the threaded groove 28, which is convenient for driving the two groups of side plates 16 to move synchronously with the connecting vertical plate 14 subsequently, thereby facilitating the improvement of the leveling effect on the seedbed.

[0049] Anti-loss ropes are connected to the outer sides of the upper ends of the third fixing screw 29 and the second fixing screw 27 to prevent them from being lost when not in use. And while the side plate 16 makes synchronous reciprocating motion with the connecting plate 24, it makes a sliding connection with the U-shaped frame 18 and the limit strip 19 installed inside it. At this time, the U-shaped frame 18 and the limit strip 19 can limit the side plate 16 to ensure the smoothness of its movement.

[0050] The connecting vertical plate 14 is fixedly installed on the outer side of the lower end of the transmission block 13, which is convenient for driving the connecting vertical plate 14 to make a reciprocating motion under the lower side of the mounting frame 1 through the transmission block 13, and further facilitating driving the connecting vertical plate 14 to make a synchronous movement while the transmission block 13 makes a reciprocating movement on the outer side of the reciprocating lead screw 12.

[0051] A second support frame 25 is arranged on the right side of the film pressing roller 23, and a soil feeding inclined plate 26 is fixedly installed on the outer side of the lower end of the first leveling rod 15. Limit grooves 20 adapted to the first support frame 7 and the second support frame 25 are respectively penetrated and opened inside the mounting frame 1, and the first support frame 7 and the second support frame 25 are respectively connected to the mounting frame 1 in a sliding manner through the limit grooves 20.

[0052] Among them, a connecting plate 24 is fixedly installed at the gap between the second support frame 25 and the first support frame 7. The connecting plate 24 plays a good supporting and driving role for the second support frame 25. When the adjusting assembly adjusts the distance between the two groups of first support frames 7 according to the seedbed, the two groups of second support frames 25 are respectively driven by the connecting plate 24 to move synchronously with the two groups of first support frames 7, so that the second support frame 25 slides inside the mounting frame 1 through the limiting groove 20, thereby adjusting the distance between the two groups of soil feeding inclined plates 26, which is convenient for being applicable to seedbeds of different sizes and improves the convenience of adjustment.

[0053] At the same time, the upper end of the second support frame 25 extends to the outside of the upper end of the mounting frame 1. Fixing bolts are arranged at the opposite corners of the upper end of the second support frame 25, and a groove adapted to the fixing bolts is opened on the upper surface of the mounting frame 1. A threaded structure is opened inside the groove. When the second support frame 25 is adjusted to a specified position, it is convenient to fix the position of the second support frame 25 through the fixing bolts and the threaded structure in the groove, which is convenient for improving the stability of the soil feeding inclined plate 26 during operation.

[0054] Working principle

[0055] First, move the whole to a specified position through the handrail and the driving wheel 2, and then adjust the distance between the two groups of first support frames 7 according to the size of the seedbed to be covered with film. During adjustment, first adjust the mounting block 4 to a specified height outside the mounting vertical plate 3, and then rotate and insert the first fixing screw 9 into the mounting block 4 and the threaded hole 10, so that the first fixing screw 9 is threadedly connected with the mounting block 4 and the threaded hole 10 respectively, thereby playing a role in fixing the mounting block 4. When the mounting block 4 moves, it drives the transmission plate 5 to move synchronously. At this time, both ends of the adjusting rod 6 rotate with the transmission plate 5 and the first support frame 7 respectively, so that the inclination angle of the adjusting rod 6 changes, and then it is convenient to drive the two groups of first support frames 7 to move relatively inside the mounting frame 1 through the adjusting rod 6 to achieve the effect of adjusting the distance between the two groups of first support frames 7.

[0056] At the same time, the first support frame 7 drives the two groups of second support frames 25 and the soil feeding inclined plates 26 to move synchronously with the first support frame 7 through the connecting plate 24, so as to facilitate adjusting the distance between the two groups of soil feeding inclined plates 26 according to the size of the seedbed, which is convenient for the subsequent soil feeding inclined plates 26 to gather the soil on both sides of the seedbed and cover it on both sides of the seedbed covered with the film, pressing the two sides of the film to form an effect of automatically compacting the two sides of the film.

[0057] After the adjustment is completed, place the film covering roller 8 adapted to the distance between the two groups of first support frames 7 on the first support frames 7. Then rotate the fixing rings on the first support frames 7 and cover the upper ends on both sides of the film covering roller 8. Then limit the fixing rings through the fixing bolts, so that the film covering roller 8 can rotate in the first support frames 7 and the fixing rings during film covering. Pass one end of the film wound around the film covering roller 8 through the through groove to contact the guiding roller 21 and the film pressing roller 23. At this time, the guiding roller 21 plays a good role in limiting and supporting the film during film covering, and the film pressing roller 23 can cover the film on the seedbed, ensuring the fitting effect between the film and the seedbed, and at the same time the flatness of the film, avoiding wrinkles in the film due to factors such as manual operation and wind force during the film covering process.

[0058] While adjusting the two groups of first support frames 7, the U-shaped frame 18 can respectively pull out the two groups of side plates 16 from the connecting vertical plate 14, causing the side plates 16 to slide relative to the connecting vertical plate 14. After the adjustment is completed, insert the second fixing screws 27 into the threaded grooves 28 and the side plates 16 at the corresponding positions, so that the second fixing screws 27 are respectively threadedly connected to the threaded grooves 28 and the side plates 16, thereby playing a role in fixing the side plates 16. At the same time, rotate the third fixing screws 29 so that the third fixing screws 29 originally fixing the side plates 16 and the U-shaped frame 18 are respectively disengaged from the threaded connection with the U-shaped frame 18 and the side plates 16, losing the fixing effect on the side plates 16.

[0059] During film covering, start the driving motor 11 to drive the reciprocating lead screw 12 to rotate inside the mounting frame 1. At this time, the transmission block 13 drives the connecting vertical plate 14 to perform reciprocating motion. At the same time, the side plates 16 fixed by the second fixing screws 27 and the threaded grooves 28 can perform synchronous reciprocating motion with the connecting plate 24, so as to conveniently drive the first leveling rod 15 and the second leveling rod 17 in contact with the seedbed to perform reciprocating motion respectively through the connecting vertical plate 14 and the side plates 16, enabling the first leveling rod 15 and the second leveling rod 17 to level the seedbed before the overall film covering, avoiding large soil blocks or stones on the seedbed from puncturing the film, and being applicable to seedbeds of different sizes with good applicability.

[0060] After the film covering is completed, as the whole moves, the soil feeding inclined plate 26 can gather the soil on both sides of the seedbed and cover it on both sides of the seedbed covered with the film, pressing the two sides of the film to form an effect of automatically compacting the two sides of the film.

[0061] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written out should also be regarded as within the scope recorded in this specification.

Claims

1. A film covering device for forage seedling cultivation, comprising a mounting frame (1), an adjusting component and a support plate (22), characterized in that, On the left side of the upper end of the mounting frame (1), a mounting vertical plate (3) is fixedly installed, and on the right side of the mounting vertical plate (3), a first support frame (7) which is also located at the upper end of the mounting frame (1) is provided. Inside the first support frame (7), a film covering roller (8) is placed. Inside the middle part of the mounting frame (1), a guiding roller (21) is rotatably installed; On the outer side of the mounting vertical plate (3), an adjusting component connected to the first support frame (7) is provided. On the outer side of the lower end of the first support frame (7), a U-shaped frame (18) located on the outer side of the lower end of the mounting frame (1) is fixedly installed. In the middle part of the lower end of the mounting frame (1), a transmission component is installed. On the outer side of the transmission component, a leveling component is installed; On the right side of the lower surface of the mounting frame (1), a support plate (22) is fixedly installed. Inside the lower end of the support plate (22), a film pressing roller (23) is rotatably installed. On the right side of the film pressing roller (23), a second support frame (25) is provided. On the outer side of the lower end of the first leveling rod (15), a soil feeding inclined plate (26) is fixedly installed.

2. The film covering device for forage seedling cultivation according to claim 1, wherein, At the top corners of the lower end of the mounting frame (1), driving wheels (2) are installed respectively. In the middle part of the mounting frame (1), a through groove located right below the film covering roller (8) is penetrated and opened.

3. A film covering device for forage seedling raising according to claim 1, characterized in that, The adjusting component includes a mounting block (4), a transmission plate (5), an adjusting rod (6) and a first fixing screw (9). The mounting block (4) is slidably installed on the outer side of the mounting vertical plate (3). On the right surface of the mounting block (4), a transmission plate (5) is fixedly installed. On the outer side of the right end of the transmission plate (5), an adjusting rod (6) is rotatably installed through a hinge shaft. The adjusting rod (6) and the first support frame (7) form a rotating structure through a bearing.

4. A film covering device for forage seedling cultivation according to claim 3, characterized in that, On the left side of the connection part between the mounting block (4) and the mounting vertical plate (3), a first fixing screw (9) is provided. Inside the mounting vertical plate (3), threaded holes (10) adapted to the first fixing screw (9) are equally spaced and opened.

5. A film covering device for forage seedling cultivation according to claim 1, characterized in that, Inside the mounting frame (1), limiting grooves (20) adapted to the first support frame (7) and the second support frame (25) are respectively penetrated and opened. The first support frame (7) and the second support frame (25) are respectively connected to the mounting frame (1) in a sliding manner through the limiting grooves (20). A connecting plate (24) is fixedly installed at the gap between the second support frame (25) and the first support frame (7).

6. The film covering device for forage seedling cultivation according to claim 1, wherein, The transmission component includes a driving motor (11), a reciprocating lead screw (12) and a transmission block (13). The driving motor (11) is installed in the middle part of the lower end of the mounting frame (1). The output end of the driving motor (11) is connected with a reciprocating lead screw (12). On the outer side of the reciprocating lead screw (12), a transmission block (13) is provided. The reciprocating lead screw (12) and the mounting frame (1) are connected in a rotating manner.

7. A film covering device for forage seedling cultivation according to claim 1, characterized in that, The leveling assembly includes a connecting vertical plate (14), a first leveling rod (15), a side plate (16), and a second leveling rod (17). The connecting vertical plate (14) is fixedly installed on the outer side of the lower end of the transmission block (13), and the first leveling rods (15) are fixedly installed at equal intervals on the right side of the lower end of the connecting vertical plate (14). The side plates (16) are respectively installed inside the front and rear sides of the connecting vertical plate (14), and the second leveling rods (17) are fixedly installed at equal intervals at the lower ends of the side plates (16).

8. A film covering device for forage seedling cultivation according to claim 7, characterized in that, One end of the side plate (16) away from the connecting vertical plate (14) is connected to the U-shaped frame (18), and limiting strips (19) are fixedly installed inside both the U-shaped frame (18) and the connecting vertical plate (14). The side plate (16) is connected to the second leveling rod (17) in a sliding manner.

9. The film covering device for forage seedling cultivation according to claim 8, characterized in that, A threaded groove (28) is penetratingly opened inside the outer side of the connecting vertical plate (14), and a second fixing screw (27) adapted to the threaded groove (28) is penetratingly provided at the connection between the side plate (16) and the connecting vertical plate (14).

10. A film covering device for forage seedling cultivation according to claim 9, characterized in that, A third fixing screw (29) is penetratingly installed at the connection between the side plate (16) and the U-shaped frame (18), and the U-shaped frame (18) and the side plate (16) are arranged in a one-to-one correspondence.

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