Agricultural film applicator with drip irrigation function and working method

Abstract

The application discloses an agricultural film laminating machine with drip irrigation function and a working method, relates to the agricultural film laminating technology field, and solves the problem that the film laminating machine capable of simultaneously spraying and laminating cannot guarantee the uniformity of the liquid medicine spraying concentration and speed, improves the spraying quality, and specifically has the following arrangement: a rack provided with moving wheels, a spraying mechanism, a film pressing mechanism and a film laminating unwinding mechanism arranged in sequence from front to back on the bottom of the rack along the advancing direction, a medicine box and a quantitative liquid storage tank mounted on the top of the rack, the medicine box and the quantitative liquid storage tank being communicated through a one-way circulation pipeline, the bottom of the quantitative liquid storage tank being connected with the spraying mechanism through a liquid feeding pipe, a piston plate movably arranged in the quantitative liquid storage tank, and a moving driving assembly for driving the piston plate to move fixedly arranged on the top of the quantitative liquid storage tank.

Description

Technical Field

[0001] This invention relates to the field of agricultural mulching technology, and in particular to an agricultural mulching machine with drip irrigation function and its working method. Background Technology

[0002] Agricultural mulching machines are used to cover vegetable planting areas with plastic film, thereby protecting the crops. Before mulching, crops are usually sprayed with pesticides to aid their growth. To save time and reduce labor intensity, mulching machines that can perform both spraying and mulching simultaneously have been developed.

[0003] Existing agricultural mulching machines capable of simultaneously spraying pesticides and mulching (e.g., publication number CN113197003A) have a pesticide tank mounted on the frame. Spray heads are connected to the pesticide tank via pipes. The pesticide solution enters the pipes under gravity or a pump and is sprayed outwards through the spray heads. In actual use, the pesticide solution may precipitate, resulting in different concentrations of pesticide solution at different water levels in the tank. This makes it impossible to guarantee the uniformity of the pesticide solution concentration. Furthermore, relying on gravity cannot guarantee the uniformity of the pesticide solution spraying speed, and the pump may fail to spray normally due to water level issues. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an agricultural mulching machine with drip irrigation function and its working method. By connecting the medicine tank and the quantitative storage tank through a one-way circulation pipeline, the medicine solution can circulate unidirectionally between the two tanks, effectively preventing the medicine solution from settling and settling. At the same time, the piston plate drives the medicine supply, ensuring the supply speed. This solves the problem that existing mulching machines that can spray and mulch simultaneously cannot guarantee the uniformity of the concentration and speed of the sprayed medicine solution.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] In a first aspect, the present invention provides an agricultural mulching machine with drip irrigation function, comprising a frame equipped with casters, a spraying mechanism, a film pressing mechanism, and a film unwinding mechanism arranged sequentially from front to back along the bottom of the frame in its direction of travel, a medicine tank and a quantitative storage tank installed on the top of the frame, the medicine tank and the quantitative storage tank being connected by a one-way circulation pipeline, the bottom of the quantitative storage tank being connected to the spraying mechanism through a liquid delivery pipe, the interior of the quantitative storage tank being provided with a piston plate that can move up and down, and a moving drive assembly for driving the piston plate to move being fixedly installed on the top of the quantitative storage tank.

[0007] As a further implementation, the mobile drive assembly consists of a through hole on the top of the quantitative liquid storage tank, a lifting column slidably disposed in the through hole, and a drive motor fixedly installed on the top of the quantitative liquid storage tank. The bottom end of the lifting column is fixedly connected to the piston plate. A slide rail is fixedly provided on one side of the lifting column, and a transmission rack that meshes with the transmission gear on the drive motor is fixedly provided on the other side. A slider that cooperates with the slide rail is fixedly provided in the through hole.

[0008] As a further implementation, the quantitative liquid storage tank has a transparent structure, and scale lines are provided on the side wall of the quantitative liquid storage tank.

[0009] As a further implementation, the inlet and outlet of the medicine box are connected to the interior of the quantitative storage tank through a connecting rigid pipe. Each connecting rigid pipe is equipped with a one-way valve. The end of the connecting rigid pipe connected to the quantitative storage tank is close to the bottom of the quantitative storage tank, and the end of the connecting rigid pipe connected to the medicine box is close to the bottom of the medicine box.

[0010] As a further implementation, the film pressing mechanism consists of an electric telescopic rod fixedly installed at the bottom of the frame, a mounting plate fixedly installed at the bottom end of the electric telescopic rod, and several film-coating discs rotatably mounted on the mounting plate, with rubber rings fitted on the film-coating discs.

[0011] As a further implementation, the medicine box is fixedly mounted on the frame by a support column, with the bottom of the medicine box higher than the top of the quantitative storage tank.

[0012] As a further implementation, the spraying mechanism consists of a support rod fixedly installed at the bottom of the frame, a liquid-conducting pipe fixedly installed at the bottom of the support rod, and several drip irrigation nozzles fixedly installed on one side of the liquid-conducting pipe, with the liquid-conducting pipe connected to the liquid delivery pipe.

[0013] As a further implementation, the film-coating unwinding mechanism consists of a mounting frame fixedly installed at the bottom of the frame and a sleeve rotatably installed on the mounting frame.

[0014] Secondly, the present invention provides a method for operating an agricultural mulching machine with drip irrigation function, as detailed below:

[0015] First, roll the film onto the sleeve and then inject the medicine into the inside of the medicine tank;

[0016] The film is stretched out above the vegetable garden and pulled down to the bottom of the film covering disc. The electric telescopic rod moves the film covering disc downward until the rubber ring on the film covering disc touches the film on the ground.

[0017] The machine frame is moved to gradually cover the vegetable field with a film covering disc. At the same time, the liquid medicine in the medicine tank flows into the quantitative storage tank through the connecting hard pipe and fills the space between the piston plate and the quantitative storage tank. The lifting column drives the piston plate to press down the liquid medicine in the quantitative storage tank, so that the liquid medicine is sprayed out through the drip irrigation nozzle and dripped onto the vegetable field.

[0018] As a further implementation method, before spraying and covering, the piston plate is adjusted to a specified height to limit the amount of pesticide sprayed.

[0019] The beneficial effects of the present invention are as follows:

[0020] (1) This invention can not only spray and cover simultaneously, but also connect the medicine tank and the quantitative storage tank through a one-way circulation pipeline, so that the medicine can circulate in one direction between the medicine tank and the quantitative storage tank, effectively avoiding the sedimentation of the medicine and ensuring the uniformity of the medicine concentration at different water levels. At the same time, the piston plate drives the medicine supply, which can effectively ensure the medicine supply speed under the action of the moving drive component, so as to achieve the uniformity of the spraying speed. In addition, the setting of the piston plate can also adjust the storage space in the quantitative storage tank at the beginning of the operation, realizing quantitative spraying.

[0021] (2) The outer ring of the coated disc of the present invention is fitted with a rubber ring, which can increase the contact friction between the coated disc and the film.

[0022] (3) The electric telescopic rod of the present invention can improve the adaptability of the film pressing mechanism, so that the film covering disc can adapt to different terrains and effectively ensure the film covering work.

[0023] (4) The quantitative liquid storage tank of the present invention has a transparent structure and contains scale lines, which can conveniently, accurately and quickly adjust the position of the piston plate as needed, thereby adjusting the initial liquid storage space in the quantitative liquid storage tank, which facilitates quantitative control.

[0024] (5) The present invention uses a drive motor in conjunction with gears and racks to drive the piston plate to move, which can effectively adjust the moving speed of the piston plate, thereby ensuring the uniformity of the spraying speed of the liquid medicine, and the spraying work is not affected by gravity and water level. Attached Figure Description

[0025] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0026] Figure 1 This is a schematic diagram of the overall structure of an agricultural mulching machine with drip irrigation function according to one or more embodiments of the present invention;

[0027] Figure 2This is a schematic diagram of the pressing mechanism according to one or more embodiments of the present invention;

[0028] Figure 3 yes Figure 1 A magnified view of the structure at position A in the diagram shown.

[0029] In the diagram: the spacing or dimensions between parts have been exaggerated to show their positions; the diagram is for illustrative purposes only.

[0030] The components include: 1. Frame; 2. Connecting rigid pipe; 3. Medicine tank; 4. Support leg; 5. Casters; 6. One-way valve; 7. Support rod; 8. Drip nozzle; 9. Liquid inlet pipe; 10. Liquid delivery pipe; 11. Piston plate; 12. Quantitative storage tank; 13. Control mechanism; 14. Electric telescopic rod; 15. Mounting plate; 16. Rubber ring; 17. Film-coated disc; 18. Mounting frame; 19. Sleeve; 20. Rotating rod; 21. Rolling bearing; 22. Slide rail; 23. Slider; 24. Through hole; 25. Transmission gear; 26. Drive motor; 27. Transmission rack; 28. Lifting column. Detailed Implementation

[0031] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0032] As described in the background section, existing agricultural mulching machines capable of simultaneously spraying pesticides and mulching have a pesticide tank mounted on the frame. Sprayers are connected to the tank via pipes. The pesticide solution enters the pipes under gravity or a pump and is sprayed outwards through the sprayers. In actual use, the pesticide solution may precipitate, resulting in different concentrations at different water levels in the tank. This makes it impossible to guarantee the uniformity of the spray concentration. Furthermore, gravity cannot guarantee the uniformity of the spraying speed, and the pump may fail to operate properly due to water level issues. To address these technical problems, this invention proposes an agricultural mulching machine with drip irrigation function and its operating method.

[0033] Example 1

[0034] In a typical embodiment of the present invention, such as Figures 1-3 As shown, an agricultural mulching machine with drip irrigation function is proposed, including a frame 1, and a number of support legs 4 are fixedly connected to the bottom of the frame 1. The bottom end of the support legs 4 is equipped with a movable wheel 5, which is a universal wheel structure. A control mechanism 13 is installed on the surface of the frame 1. The control mechanism 13 is electrically connected to various electrical components in this embodiment, and the control mechanism 13 is used to control the operation of various electrical components.

[0035] Agricultural mulching machines with drip irrigation capabilities also include:

[0036] The film coating and unwinding mechanism consists of a mounting frame 18 and a sleeve 19. The mounting frame 18 is fixedly installed at the bottom of the frame 1, and the bottom of the mounting frame 18 is rotatably connected to the sleeve 19.

[0037] The film pressing mechanism consists of an electric telescopic rod 14, a mounting plate 15, a film-coating disc 17, and a rotating rod 20. The electric telescopic rod 14 is fixedly installed at the bottom of the frame 1, and the bottom end of the electric telescopic rod 14 is fixedly connected to the mounting plate 15. The mounting plate 15 is C-shaped, and rolling bearings 21 are installed on both sides of the outer side of the C-shaped mounting plate 15. The inner rings of the two rolling bearings 21 are connected by the rotating rod 20. The film-coating disc 17 is fixedly installed at both ends of the rotating rod 20. A rubber ring 16 is fitted on the outer ring of the film-coating disc 17 to increase the contact friction with the film.

[0038] The film roll is sleeved on sleeve 19. When performing the mulching operation, the film is first unrolled, then placed above the vegetable field and pulled below the mulching disc 17. Then, the electric telescopic rod 14 is opened, which drives the mounting plate 15 connected to its end to move downward, so that the mounting plate 15 drives the mulching disc 17 and rubber ring 16 to move downward until the mulching disc 17 and rubber ring 16 touch the film on the ground. Then, the frame 1 is pushed, so that the frame 1 moves on the ground through the support legs 4 and the moving wheels 5. The rubber ring 16 will rotate on the film using the rolling bearing 21 and the rotating rod 20, and the film will gradually unroll from sleeve 19, so that the mulching disc 17 can gradually cover the vegetable field with the film.

[0039] Several support columns are vertically fixed on the upper surface of the frame 1, and the tops of the several support columns are connected to a medicine box 3.

[0040] A quantitative storage tank 12 is also fixedly installed on the frame 1. The inlet and outlet of the medicine tank 3 are connected to the inside of the quantitative storage tank 12 through a connecting rigid pipe 2. A one-way valve 6 is installed on each connecting rigid pipe 2 to form a one-way circulation pipeline, so that the medicine can circulate between the medicine tank 3 and the quantitative storage tank 12 according to the set one-way flow path, effectively avoiding the sedimentation of the medicine.

[0041] The end of the connecting rigid tube 2 that connects to the quantitative storage tank 12 is close to the bottom of the quantitative storage tank 12. At the same time, the end of the connecting rigid tube 2 that connects to the medicine box 3 is close to the bottom of the medicine box 3. This can effectively prevent the medicine from accumulating at the bottom of the medicine box 3 and the quantitative storage tank 12. In order to facilitate the delivery of the medicine, the bottom of the medicine box 3 is higher than the top of the quantitative storage tank 12.

[0042] The quantitative liquid storage tank 12 has a piston plate 11 slidably connected inside, and a liquid delivery pipe 10 is connected to the bottom of the quantitative liquid storage tank 12. The quantitative liquid storage tank 12 is a transparent component, and scale lines are provided on the outside of the quantitative liquid storage tank 12.

[0043] A moving drive assembly is fixedly installed on the top outer wall of the quantitative liquid storage tank 12. The moving drive assembly is connected to the piston plate 11 and is used to drive the piston plate 11 to move up and down inside the quantitative liquid storage tank 12.

[0044] It is also equipped with a spraying mechanism, which consists of a support rod 7, drip irrigation nozzles 8 and a liquid passage pipe 9. There is one support rod 7, which is fixedly installed at the bottom of the frame 1, and the bottom end of the support rod 7 is fixedly connected to the horizontal liquid passage pipe 9. Several drip irrigation nozzles 8 are installed at one end of the horizontal liquid passage pipe 9, and the other end is connected to the adjacent liquid delivery pipe 10. Thus, the liquid in the quantitative storage tank 12 can be transported to the drip irrigation nozzles 8 through the liquid delivery pipe 10 and the liquid passage pipe 9, and sprayed outward through the drip irrigation nozzles 8. The support rod 7 can restrict the position of the drip irrigation nozzles 8.

[0045] The spraying mechanism, the film pressing mechanism, and the film unwinding mechanism are all installed at the bottom of the frame 1 and are arranged sequentially along the traveling direction of the film laminator. The spraying mechanism is located at the front end of the traveling direction, so that the spraying of the liquid medicine and the film lamination can be carried out sequentially in the traveling direction.

[0046] To control the amount of pesticide solution used in each drip irrigation, the piston plate 11 is first adjusted to a suitable position within the quantitative storage tank 12 using a moving drive assembly, allowing a specified volume of pesticide solution to be stored between the piston plate 11 and the quantitative storage tank 12. Then, a large amount of pesticide solution is injected into the pesticide tank 3. The pesticide solution in the pesticide tank 3 flows into the quantitative storage tank 12 through the connecting rigid pipe 2, filling the space between the piston plate 11 and the quantitative storage tank 12. The moving drive assembly then moves the piston plate 11 downwards within the quantitative storage tank 12, forcing the pesticide solution in the quantitative storage tank 12 into the delivery pipe 10 and the horizontal liquid passage pipe 9. The pesticide solution is then sprayed out through several drip irrigation nozzles 8 installed on the horizontal liquid passage pipe 9 and dripped onto the vegetable field. This allows a specified amount of pesticide solution to be dripped onto the vegetable field before mulching, and the high degree of automation improves the practicality of the agricultural mulching machine with drip irrigation function.

[0047] On the other hand, during the process of the piston plate 11 being pressed down, the medicine in the quantitative storage tank 12 can be pumped to the medicine tank 3 to realize the circulation of the medicine, thereby disturbing the medicine in the medicine tank 3 and avoiding the problem of concentration changes at different water levels caused by static settling.

[0048] like Figure 1 and Figure 3 As shown, the mobile drive component includes:

[0049] A through hole 24 is provided on the top of the quantitative liquid storage tank 12. A drive motor 26 is also fixedly installed on the top of the quantitative liquid storage tank 12. A lifting column 28 is slidably connected inside the through hole 24. The lifting column 28 is vertically arranged. A transmission rack 27 is fixedly installed on one side of the lifting column 28. The transmission rack 27 meshes with the transmission gear 25 installed on the output end of the drive motor 26.

[0050] It is understandable that the lifting column 28 and the through hole 24, as well as the piston plate 11 and the inner wall of the metering tank 12, can be sealed to prevent the liquid from leaking out.

[0051] The bottom end of the lifting column 28 is fixedly connected to the piston plate 11. A slide rail 22 is fixedly installed on the side of the lifting column 28 away from the transmission rack 27. A slider 23 is installed inside the through hole 24. The lifting column 28 is slidably connected to the slider 23 inside the through hole 24 through the slide rail 22.

[0052] The slide rail 22 and the transmission rack 27 are both arranged along the length of the lifting column 28.

[0053] In this embodiment, when it is necessary for the piston plate 11 to squeeze the liquid medicine between the quantitative storage tank 12 and the piston plate 11, the drive motor 26 can be turned on. The drive motor 26 drives the transmission gear 25 to rotate, so that the transmission gear 25 drives the transmission rack 27 meshing with it to move downward. The transmission rack 27 then drives the lifting column 28 to slide downward through the slide rail 22 and the slider 23 inside the through hole 24, so that the lifting column 28 drives the piston plate 11 to press down the liquid medicine inside the quantitative storage tank 12.

[0054] The drive motor 26 is a servo motor, which can effectively control the lifting speed of the lifting column 28, thereby ensuring the uniformity of the spraying speed of the liquid medicine.

[0055] Example 2

[0056] In a typical embodiment of the present invention, a working method for an agricultural mulching machine with drip irrigation function is proposed, as follows:

[0057] When performing film covering and drip irrigation, first roll the film onto the sleeve 19, then inject a large amount of liquid medicine into the inside of the medicine tank 3, and adjust the piston plate 11 to the specified height.

[0058] Then unfold the film, place it above the vegetable garden, and pull it below the film covering disc 17. Then open the electric telescopic rod 14. The electric telescopic rod 14 drives the mounting plate 15 connected to its bottom end to move downward, so that the mounting plate 15 drives the film covering disc 17 and rubber ring 16 to move downward until the film covering disc 17 and rubber ring 16 touch the film on the ground.

[0059] Push the frame 1 so that the frame 1 moves on the ground via the support legs 4 and the moving wheels 5. The rubber ring 16 will rotate on the film using the rolling bearing 21 and the rotating rod 20. At the same time, the film will gradually unfold from the sleeve 19, so that the film will gradually cover the vegetable field using the film covering disc 17.

[0060] While the frame 1 is being moved, the liquid medicine in the medicine tank 3 flows into the quantitative storage tank 12 through the connecting hard pipe 2, filling the space between the piston plate 11 and the quantitative storage tank 12. The drive motor 26 drives the transmission gear 25 to rotate, causing the transmission gear 25 to drive the transmission rack 27 meshing with it to move downward. The transmission rack 27 then drives the lifting column 28 to slide downward through the slide rail 22 and the slider 23 inside the through hole 24. This causes the lifting column 28 to drive the piston plate 11 to press down the liquid medicine inside the quantitative storage tank 12, so that the piston plate 11 presses the liquid medicine into the delivery pipe 10 and the horizontal liquid pipe 9. The liquid medicine is then sprayed out through several drip irrigation nozzles 8 installed on the horizontal liquid pipe 9 and dripped onto the vegetable garden. Since the spraying mechanism is at the forefront of the direction of travel, it can achieve the work of spraying medicine first and then covering the film.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An agricultural mulching machine with drip irrigation function, comprising a frame equipped with casters, wherein a spraying mechanism, a film pressing mechanism, and a film unwinding mechanism are sequentially arranged from front to back along the bottom of the frame in its direction of travel, characterized in that, The top of the frame is equipped with a medicine box and a quantitative storage tank; The medicine tank and the quantitative storage tank are connected by a one-way circulation pipeline. The bottom of the quantitative storage tank is connected to the spraying mechanism through a liquid delivery pipe. The quantitative storage tank is equipped with a piston plate that can move up and down. The top of the quantitative storage tank is fixedly installed with a moving drive assembly for driving the piston plate to move. The inlet and outlet of the medicine tank are connected to the interior of the quantitative storage tank via a connecting rigid pipe. Each connecting rigid pipe is equipped with a one-way valve. The end of the connecting rigid pipe connected to the quantitative storage tank is close to the bottom of the quantitative storage tank, and the end of the connecting rigid pipe connected to the medicine tank is close to the bottom of the medicine tank. In order to facilitate the delivery of the medicine, the bottom of the medicine tank is higher than the top of the quantitative storage tank. During the downward pressing of the piston plate, the medicine in the quantitative storage tank is pumped into the medicine tank to realize the circulation of the medicine, thereby disturbing the medicine in the medicine tank and preventing the medicine from settling. The mobile drive assembly consists of a through hole on the top of the quantitative liquid storage tank, a lifting column slidably disposed in the through hole, and a drive motor fixedly installed on the top of the quantitative liquid storage tank. The bottom end of the lifting column is fixedly connected to the piston plate. A slide rail is fixedly provided on one side of the lifting column, and a transmission rack that meshes with the transmission gear on the drive motor is fixedly provided on the other side. A slider that cooperates with the slide rail is fixedly provided in the through hole.

2. The agricultural mulching machine with drip irrigation function according to claim 1, characterized in that, The quantitative liquid storage tank has a transparent structure, and scale lines are provided on the side wall of the quantitative liquid storage tank.

3. An agricultural mulching machine with drip irrigation function according to claim 2, characterized in that, The film pressing mechanism consists of an electric telescopic rod fixedly installed at the bottom of the frame, a mounting plate fixedly installed at the bottom end of the electric telescopic rod, and several film-coating discs rotatably mounted on the mounting plate. Rubber rings are fitted on the film-coating discs.

4. An agricultural mulching machine with drip irrigation function according to claim 3, characterized in that, The medicine box is fixedly installed on the frame by a support column, and the bottom of the medicine box is higher than the top of the quantitative storage tank.

5. An agricultural mulching machine with drip irrigation function according to claim 4, characterized in that, The spraying mechanism consists of a support rod fixedly installed at the bottom of the frame, a liquid-conducting pipe fixedly installed at the bottom of the support rod, and several drip irrigation nozzles fixedly installed on one side of the liquid-conducting pipe. The liquid-conducting pipe is connected to the liquid delivery pipe.

6. An agricultural mulching machine with drip irrigation function according to claim 5, characterized in that, The film coating unwinding mechanism consists of a mounting frame fixedly installed at the bottom of the frame and a sleeve rotatably installed on the mounting frame.

7. A method for operating an agricultural mulching machine with drip irrigation function as described in claim 6, characterized in that, Specifically as follows: First, roll the film onto the sleeve and then inject the medicine into the inside of the medicine tank; The film is stretched out above the vegetable garden and pulled down to the bottom of the film covering disc. The electric telescopic rod moves the film covering disc downward until the rubber ring on the film covering disc touches the film on the ground. The machine frame is moved to gradually cover the vegetable field with a film covering disc. At the same time, the liquid medicine in the medicine tank flows into the quantitative storage tank through the connecting hard pipe and fills the space between the piston plate and the quantitative storage tank. The lifting column drives the piston plate to press down the liquid medicine in the quantitative storage tank, so that the liquid medicine is sprayed out through the drip irrigation nozzle and dripped onto the vegetable field.

8. The working method of an agricultural mulching machine with drip irrigation function according to claim 7, characterized in that, Before spraying and covering, adjust the piston plate to the specified height to limit the amount of pesticide to be sprayed.

Images