Multi-row synchronous punching device for tuber crop film mulching

Abstract

The invention discloses a multi-row synchronous punching device for tuber crop film mulching, and belongs to the technical field of agricultural instruments. Comprising a film laminating machine body, a roller assembly is rotationally installed on the film laminating machine body, and a punching assembly is installed on the roller assembly; the punching assembly comprises three sets of supporting plates and a plurality of earth cutting cylinders slidably connected with the roller assembly, guide columns are rotationally connected to the earth cutting cylinders, and the guide columns are inserted into the corresponding supporting plates and move along a set track. The three sets of supporting plates are installed on the rod assembly, and the rod assembly is rotationally installed on the roller assembly and fixed through a limiting piece. Through the design of the three sets of earth cutting cylinders, hole forming operation of multiple rows of planting holes can be completed at a time, the film covering and hole forming efficiency is remarkably improved, the rod assemblies and the supporting plates are adjusted in a linkage mode, the depths of all the earth cutting cylinders can be adjusted in a unified mode, operation steps are simplified, and the device is suitable for large-scale farmland operation.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural implements, and more specifically, to a multi-row synchronous hole punching device for covering film of tuber crops. Background Art

[0002] During the planting process of tuber crops, it is usually necessary to achieve the purposes of heat preservation, moisture preservation, and weed growth inhibition through film covering technology. The covering stability of the plastic film and the hole opening quality of the planting holes directly affect the emergence rate and yield of the crops. However, most of the existing film covering hole punching devices adopt single-row or fixed-row hole punching structures, which are difficult to meet the requirements of large-scale planting, and have insufficient ability to synchronously adjust the digging depth. It is often necessary to customize the digging depth of the device separately. After customization, it is very difficult to adjust the hole depth and cannot meet the digging depth requirements of different tuber crops. In view of this, we propose a multi-row synchronous hole punching device for covering film of tuber crops. Summary of the Invention

[0003] The purpose of the present invention is to provide a multi-row synchronous hole punching device for covering film of tuber crops, which is used to solve the technical problem that the existing film covering hole punching device has a single digging depth and cannot adjust the digging depth.

[0004] An embodiment of the present invention provides a multi-row synchronous hole punching device for covering film of tuber crops, which includes a film covering machine main body. A roller assembly is rotatably installed on the film covering machine main body, and a hole punching assembly is installed on the roller assembly;

[0005] The hole punching assembly includes three groups of support plates and a number of soil digging cylinders slidably connected to the roller assembly. A guiding column is rotatably connected to the soil digging cylinder, and the guiding column is inserted into the corresponding support plate and moves along a set track;

[0006] A rod assembly. The three groups of support plates are installed on the rod assembly, and the rod assembly is rotatably installed on the roller assembly and fixed by a limiting member;

[0007] The rod assembly drives the three groups of support plates to rotate, so that the support plates control the centripetal or centrifugal movement of a number of guiding columns, so as to realize the adjustment of the length of the soil digging cylinder passing through the roller assembly.

[0008] As a further description of the above technical solution, a number of guiding holes are opened on the support plate, and the guiding column is inserted into the corresponding guiding hole and moves;

[0009] From one end to the other end of the guiding hole, the perpendicular distance from the axis of the support plate gradually increases or decreases.

[0010] As a further description of the above technical solution, a telescopic partition is installed in the guiding hole, and the guiding column is rotatably connected to the telescopic partition.

[0011] As a further description of the above technical solution, the roller assembly includes a pipe column and two sets of support frames installed on the main body of the film laminating machine. A number of connecting frames are fixedly installed inside the pipe column. Support pipes are fixedly installed on the connecting frames on both sides. The support pipes are rotatably connected to the corresponding support frames, and the rod assembly is rotatably connected to the support pipes.

[0012] As a further description of the above technical solution, it further includes two sets of soil covering devices installed on the main body of the film laminating machine. The soil covering devices are located at both ends of the pipe column.

[0013] As a further description of the above technical solution, a number of soil discharge holes are formed on the pipe column. There is a set distance between the support plates on both sides and the inner wall of the pipe column, and the distance is smaller than the width of the soil discharge holes.

[0014] As a further description of the above technical solution, the rod assembly includes a first support rod and a second support rod that are slidably connected to each other. The first support rod is rotatably connected to the corresponding support pipe, and the second support rod is movably inserted on the corresponding support pipe;

[0015] Among the support plates distributed on both sides, one is fixedly connected to the first support rod, and the other is slidably connected to the second support rod. The second support rod passes through the middle support plate and does not contact it;

[0016] The middle support plate is rotatably connected to the pipe column. A number of limit holes are formed on the middle support plate. A number of limit rods are fixedly installed on the second support rod, and the limit rods are inserted into the limit holes for the transmission connection between the middle support plate and the second support rod;

[0017] Both the first support rod and the second support rod are fixed to the corresponding support pipe by limit pins.

[0018] As a further description of the above technical solution, a connecting plate is rotatably connected to the end of the second support rod, and the connecting plate is connected to the support frame through a pull rod.

[0019] As a further description of the above technical solution, an elastic member for pulling the second support rod is installed inside the first support rod.

[0020] As a further description of the above technical solution, a number of adjusting rods are fixedly installed on the middle support plate, and the ends of the adjusting rods correspond to the positions of the soil discharge holes.

[0021] By adopting the above technical solution, the digging depths of several digging cylinders are synchronously adjusted, the pipe column is fixed, the limit pins on the first support rod and the second support rod are removed, the first support rod is rotated to drive the second support rod and the limit rod to rotate, thereby driving several support plates to rotate simultaneously. When the guide column moves in the guide hole during the rotation of the support plate, the digging cylinder is driven to lift and lower, realizing the adjustment of the length of the digging cylinder extending out of the pipe column. After the adjustment is completed, the first support rod and the second support rod are limited and fixed on the corresponding support pipes through the limit pins to complete the adjustment;

[0022] For non-uniform-depth digging or adjusting the planting row spacing, the pipe column is fixed and the limit pin on the second support rod is removed. The pull rod is screwed to push the connecting plate and the second support rod to move relative to the support pipe, so that the limit rod installed on the second support rod disengages from the limit hole. By manually pressing the digging cylinder corresponding to the middle support plate, or by using a tool and inserting the tool into the pipe column through the soil discharge hole and pushing and pulling the adjusting rod, the rotation of the support plate is controlled to realize the adjustment of the extending length of the middle digging cylinder alone. After the adjustment is completed, the pull rod is screwed in the reverse direction to make the limit rod insert into the limit hole again, and then the second support rod and the support pipe are fixed again by inserting the limit pin into the through hole;

[0023] After the film mulching machine mulches the ridges, the pipe column rotates as it follows the traction equipment. The pipe column presses the plastic film on the ridges. The digging cylinder penetrates the plastic film and inserts into the soil. While the soil covering device evenly covers the soil on the edge of the plastic film, it also sends part of the soil into the interior from both ends of the pipe column. As the pipe column rotates, planting holes are formed on the plastic film and the ridges. The soil entering the pipe column falls on the top of the plastic film from the soil discharge hole to compact the plastic film.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0025] 1. Through the design of three groups of circumferentially arrayed digging cylinders, the present invention can complete the opening operation of multiple planting holes at one time, significantly improving the film mulching and hole punching efficiency. The interlocking adjustment of the rod assembly and the support plate enables the depths of all digging cylinders to be uniformly adjusted, simplifying the operation steps and being suitable for large-scale farmland operations.

[0026] 2. The soil discharge holes of the present invention evenly discharge the soil inside the pipe column to the surface of the plastic film as the roller rotates. The plastic film surface is compacted by the self-weight of the covered soil, effectively preventing the plastic film from being blown up or displaced by the wind and improving the covering firmness, especially suitable for windy environments.

[0027] 3. The design of the distance between the telescopic partition plate and the support plate of the present invention can filter large pieces of soil or stones to avoid clogging of the soil discharge holes; the guide hole structure cooperates with the sliding of the digging cylinder to ensure that the soil is discharged only from the specified path, ensuring the long-term stable operation of the device.

[0028] 4. The support plate in the middle of the present invention can be independently adjusted, thereby realizing the independent control of the digging depth of the digging cylinder in the middle, adapting to the requirements of different crops for row spacing and hole depth, meeting the differentiated planting needs of tuber crops, and improving the planting adaptability. Description of the Drawings

[0029] Figure 1 It is a schematic diagram of the overall structure of a multi-row synchronous hole punching device for tuber crops with film mulching disclosed in a preferred embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of the connection structure of the roller assembly of a multi-row synchronous hole punching device for tuber crops with film mulching disclosed in a preferred embodiment of the present invention;

[0031] Figure 3 It is a cross-sectional view of the roller assembly of a multi-row synchronous hole punching device for tuber crops with film mulching disclosed in a preferred embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the connection structure of the hole punching assembly of a multi-row synchronous hole punching device for tuber crops with film mulching disclosed in a preferred embodiment of the present invention;

[0033] Figure 5 It is a partial structural schematic diagram of the rod assembly of a multi-row synchronous hole punching device for tuber crops with film mulching disclosed in a preferred embodiment of the present invention;

[0034] Figure 6 It is a schematic diagram of the connection structure of the telescopic partition plate of a multi-row synchronous hole punching device for tuber crops with film mulching disclosed in a preferred embodiment of the present invention;

[0035] Figure 7 It is a schematic diagram of the position of the limiting hole of a multi-row synchronous hole punching device for tuber crops with film mulching disclosed in a preferred embodiment of the present invention;

[0036] Figure 8 It is a schematic diagram of the positions of the adjusting rod and the soil discharging hole of a multi-row synchronous hole punching device for tuber crops with film mulching disclosed in a preferred embodiment of the present invention.

[0037] Explanation of the reference numerals in the figures: 1. Film mulching machine main body; 2. Roller assembly; 21. Pipe column; 22. Support frame; 23. Connecting frame; 24. Support pipe; 25. Soil discharging hole; 3. Hole punching assembly; 31. Support plate; 32. Guide hole; 33. Digging cylinder; 34. Guide post; 35. Telescopic partition plate; 36. Limiting hole; 37. Adjusting rod; 4. Rod assembly; 41. First support rod; 42. Second support rod; 43. Elastic member; 44. Fixed plate; 45. Fixed hole; 46. Limiting rod; 47. Connecting plate; 48. Pull rod; 49. Through hole; 5. Soil covering device. Detailed Embodiment

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Referring Figures 1 to 8 , this embodiment discloses a multi-row synchronous hole punching device for tuber crops with film mulching, which includes a film mulching machine main body 1. A roller assembly 2 is installed on the film mulching machine main body 1. The roller assembly 2 includes a tubular column 21 with open ends at both ends and two groups of support frames 22 fixedly installed on the film mulching machine main body 1. A number of connecting frames 23 are fixedly installed inside the tubular column 21. Support pipes 24 are fixedly installed on the connecting frames 23 on both sides. The support pipes 24 are rotatably connected to the corresponding support frames 22. A number of soil discharging holes 25 are arranged on the tubular column 21 in a circumferential array around the axis of the tubular column 21, which are used to send soil onto the plastic film after the ridge is covered with film, so as to compact the plastic film and improve the stability of the plastic film covering.

[0040] A hole punching assembly 3 is installed on the tubular column 21. The hole punching assembly 3 includes three groups of support plates 31. The support plates 31 are circular. All three groups of support plates 31 are inside the tubular column 21. The outer diameter of the middle support plate 31 is larger than that of the other two groups of support plates 31. The middle support plate 31 is rotatably connected to the tubular column 21. There is a set distance between the support plates 31 on both sides and the inner wall of the tubular column 21, and the distance is smaller than the width of the soil discharging holes 25. The soil passing between the support plates 31 and the tubular column 21 can ensure that it falls from the soil discharging holes 25, avoiding large soil blocks or stones from entering the inside of the tubular column 21 and blocking the soil discharging holes 25 during the working process, and ensuring the stable soil discharging of the soil discharging holes 25; a number of guiding holes 32 are arranged on the support plates 31 in a circumferential array around the axis of the support plates 31. From one end to the other end of the guiding holes 32, the vertical distance from the axis of the support plates 31 gradually increases or decreases.

[0041] The hole punching assembly 3 further includes a number of soil digging cylinders 33. The number of soil digging cylinders 33 is divided into three groups. A number of soil digging cylinders 33 in each group are arranged in a circumferential array. The soil digging cylinders 33 are slidably connected to the tubular column 21 and penetrate through the tubular column 21. One end of the soil digging cylinder 33 penetrating through the tubular column 21 is open. A guiding column 34 is rotatably connected to the soil digging cylinder 33. The guiding column 34 is inserted into the guiding holes 32 and moves. By rotating the support plates 31, the guiding column 34 is guided by the guiding holes 32, driving the soil digging cylinders 33 to slide on the tubular column 21, adjusting the length of the soil digging cylinders 33 extending out of the tubular column 21, and further realizing the adjustment of the digging hole depth.

[0042] Referring Figure 4 and Figure 6, a telescopic partition plate 35 is installed in the guiding hole 32. The telescopic partition plate 35 is composed of several mutually sliding telescopic plates. The telescopic plate in the middle is rotatably connected to the guiding column 34. The telescopic plate in the middle slides in the guiding hole 32. The telescopic plates at both ends are fixedly installed at both ends of the guiding hole 32. Through the setting of the telescopic partition plate 35, soil blocking the guiding hole 32 is effectively avoided, ensuring that the guiding column 34 can move stably during adjustment.

[0043] Refer to Figure 7 and Figure 8 , a number of limiting holes 36 are formed in the middle support plate 31, and a number of adjusting rods 37 are fixedly installed on the middle support plate 31. The ends of the adjusting rods 37 correspond to the soil discharging holes 25, which is convenient for subsequently independently adjusting the digging depth of the corresponding soil digging cylinder 33 on the middle support plate 31.

[0044] Refer to Figures 1 to 3 , Figure 5 and Figure 7 , the drilling device further includes a rod assembly 4. The rod assembly 4 includes a first support rod 41 and a second support rod 42 that are slidably connected to each other. The first support rod 41 is rotatably connected to the corresponding support pipe 24. The second support rod 42 is movably inserted into the corresponding support pipe 24, which can realize mutual sliding and rotation. Among the support plates 31 distributed on both sides, one is fixedly connected to the first support rod 41, and the other is slidably connected to the second support rod 42. The second support rod 42 passes through the middle support plate 31 and does not contact.

[0045] An elastic member 43 is sleeved in the first support rod 41. One end of the elastic member 43 is fixedly connected to the first support rod 41, and the other end is fixedly connected to the second support rod 42. The elastic member 43 is used to pull the second support rod 42 to move towards the first support rod 41. A fixing plate 44 is fixedly installed on the first support rod 41. A number of circumferentially arrayed fixing holes 45 are fixedly installed on the fixing plate 44. The fixing plate 44 abuts against one side of the corresponding connecting frame 23. The limit pin passes through the connecting frame 23 and is inserted into the fixing hole 45 to fix the first support rod 41 and the support pipe 24. A number of limit rods 46 are fixedly installed on the second support rod 42. The limit rods 46 are inserted into the limit holes 36 to realize the transmission connection between the middle support plate 31 and the second support rod 42.

[0046] A connecting plate 47 is rotatably connected to the end of the second support rod 42. The connecting plate 47 is connected to the support frame 22 through a pull rod 48, such as a fish-eye type pull rod 48. By rotating the pull rod 48, the second support rod 42 can be driven to move relative to the support pipe 24, so as to realize the separation of the limiting rod 46 and the limiting hole 36. At this time, the middle support plate 31 can be freely adjusted to rotate. For example, by manually pressing the corresponding soil excavation cylinder 33 of the middle support plate 31, or by using a tool and inserting the tool into the inside of the pipe column 21 from the soil discharge hole 25 and pushing and pulling the adjusting rod 37, so as to control the rotation of the support plate 31, so as to achieve the adjustment of the extension length of the middle soil excavation cylinder 33 alone. When the soil excavation cylinder 33 is completely retracted into the pipe column 21, the adjustment of the planting spacing is realized at this time.

[0047] A through hole 49 is provided on the second support rod 42. The limiting pin passes through the support pipe 24 and is inserted into the through hole 49 to limit the connection between the second support rod 42 and the support pipe 24.

[0048] The punching device further includes two groups of soil covering devices 5 installed on the film mulching machine main body 1. The soil covering devices 5 are located at both ends of the pipe column 21. While the soil covering devices 5 evenly cover the soil on the edge of the plastic film, part of the soil is also sent into the inside from both ends of the pipe column 21 to ensure that the subsequent soil discharge hole 25 stably conveys the soil to the top of the plastic film.

[0049] Working principle: Synchronously adjust the digging depth of several soil excavation cylinders 33. Fix the pipe column 21, remove the limiting pins on the first support rod 41 and the second support rod 42, and rotate the first support rod 41 to drive the second support rod 42 and the limiting rod 46 to rotate, so as to drive several support plates 31 to rotate simultaneously. When the support plate 31 rotates, the guide post 34 moves in the guide hole 32, so as to drive the soil excavation cylinder 33 to rise and fall, and realize the adjustment of the extension length of the soil excavation cylinder 33 extending out of the pipe column 21. After the adjustment is completed, the first support rod 41 and the second support rod 42 are limited and fixed on the corresponding support pipe 24 through the limiting pins to complete the adjustment.

[0050] For non-uniform depth digging or adjusting the planting row spacing, fix the pipe column 21 and remove the limiting pin on the second support rod 42. Rotate and screw the pull rod 48 to push the connecting plate 47 and the second support rod 42 to move relative to the support pipe 24, so that the limiting rod 46 installed on the second support rod 42 is disengaged from the limiting hole 36. By manually pressing the corresponding soil excavation cylinder 33 of the middle support plate 31, or by using a tool and inserting the tool into the inside of the pipe column 21 from the soil discharge hole 25 and pushing and pulling the adjusting rod 37, so as to control the rotation of the support plate 31, and realize the adjustment of the extension length of the middle soil excavation cylinder 33 alone. After the adjustment is completed, rotate the pull rod 48 in the reverse direction to make the limiting rod 46 inserted into the limiting hole 36 again, and then insert the limiting pin into the through hole 49 to fix the second support rod 42 and the support pipe 24 again.

[0051] After the film mulching machine mulches the ridges, the pipe column 21 rotates as it moves with the traction device. The pipe column 21 presses the plastic film onto the ridges. The soil digging cylinder 33 penetrates through the plastic film and inserts into the soil. The special curved surface design of the soil covering device 5 evenly covers the soil on the edge of the plastic film and at the same time sends some soil into the interior from both ends of the pipe column 21. The pipe column 21 rotates to achieve continuous soil conveyance. As the pipe column 21 rotates, the soil digging cylinder 33 forms planting holes on the plastic film and the ridges. The soil that enters the pipe column 21 falls from the soil discharge holes 25 onto the top of the plastic film to compact the plastic film.

[0052] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. The multi-row synchronous punching device for tuber crops covered with film, characterized in that: It includes a laminating machine main body (1), a roller assembly (2) is rotatably installed on the laminating machine main body (1), and a punching assembly (3) is installed on the roller assembly (2); The punching assembly (3) includes three groups of support plates (31) and a number of soil digging cylinders (33) slidably connected to the roller assembly (2). A guiding column (34) is rotatably connected to the soil digging cylinder (33), and the guiding column (34) is inserted into the corresponding support plate (31) and moves along a set track; A rod assembly (4), the three groups of support plates (31) are installed on the rod assembly (4), and the rod assembly (4) is rotatably installed on the roller assembly (2) and fixed by a limiting member; The rod assembly (4) drives the three groups of support plates (31) to rotate, so that the support plates (31) control the centripetal or centrifugal movement of a number of guiding columns (34), so as to realize the adjustment of the length of the soil digging cylinder (33) passing through the roller assembly (2).

2. The tuber crop film mulching multi-row synchronous punching device according to claim 1, characterized in that: A number of guiding holes (32) are opened on the support plate (31), and the guiding column (34) is inserted into the corresponding guiding hole (32) and moves; From one end to the other end of the guiding hole (32), the perpendicular distance from the axis of the support plate (31) gradually increases or decreases.

3. The tuber crop film-mulching multi-row synchronous punching device according to claim 2, wherein: A telescopic partition plate (35) is installed in the guiding hole (32), and the guiding column (34) is rotatably connected to the telescopic partition plate (35).

4. The tuber crop mulch multi-row synchronous punching device according to claim 1, characterized in that: The roller assembly (2) includes a pipe column (21) and two groups of support frames (22) installed on the laminating machine main body (1). A number of connecting frames (23) are fixedly installed in the pipe column (21). Support pipes (24) are fixedly installed on the connecting frames (23) on both sides, and the support pipes (24) are rotatably connected to the corresponding support frames (22), and the rod assembly (4) is rotatably connected to the support pipes (24).

5. The tuber crop film mulching multi-row synchronous hole punching device according to claim 4, characterized in that: It also includes two groups of soil covering devices (5) installed on the laminating machine main body (1), and the soil covering devices (5) are located at both ends of the pipe column (21).

6. The tuber crop mulching multi-row synchronous punching device according to claim 4, wherein: A number of soil discharging holes (25) are opened on the pipe column (21), and there is a set distance between the support plates (31) on both sides and the inner wall of the pipe column (21), and the distance is smaller than the width of the soil discharging holes (25).

7. The tuber crop mulching multi-row synchronous hole punching device according to any one of claims 4-6, characterized in that: The rod assembly (4) includes a first support rod (41) and a second support rod (42) that are slidably connected to each other. The first support rod (41) is rotatably connected to the corresponding support pipe (24), and the second support rod (42) is movably inserted on the corresponding support pipe (24); Among the support plates (31) distributed on both sides, one is fixedly connected to the first support rod (41), and the other is slidably connected to the second support rod (42), and the second support rod (42) passes through the middle support plate (31); The middle support plate (31) is rotatably connected to the pipe column (21). A number of limiting holes (36) are opened on the middle support plate (31). A number of limiting rods (46) are fixedly installed on the second support rod (42), and the limiting rods (46) are inserted into the limiting holes (36) for the transmission connection between the middle support plate (31) and the second support rod (42); Both the first support rod (41) and the second support rod (42) are fixed to the corresponding support pipe (24) by limiting pins.

8. The tuber crop film mulching multi-row synchronous punching device according to claim 7, wherein: A connecting plate (47) is rotatably connected to the end of the second support rod (42), and the connecting plate (47) is connected to the support frame (22) through a pull rod (48).

9. The tuber crop film mulching multi-row synchronous punching device according to claim 7, characterized in that: An elastic member (43) for pulling the second support rod (42) is installed in the first support rod (41).

10. The tuber crop mulching multi-row synchronous hole punching device according to claim 6, characterized in that: A plurality of adjusting rods (37) are fixedly installed on the middle support plate (31), and the ends of the adjusting rods (37) correspond to the positions of the soil discharge holes (25).

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