Leaf cutting device for strip-shaped crops

Abstract

The utility model discloses a strip crop leaf cutting device which comprises a machine frame, a guide assembly, a brush assembly and a first cutting assembly, the guide assembly is arranged on the machine frame, so that two first guide plates which are oppositely arranged guide leaf portions, exposed out of soil, of a strip crop to the position between two brush cylinders, and the two brush cylinders are arranged on the guide assembly. Due to the fact that the two symmetrical brush cylinders are arranged in the vertical direction and matched with the shape of a strip-shaped crop, the brushes distributed in a preset mode are arranged on the outer surfaces of the brush cylinders, and the brushes have the soft deformation characteristic, leaves can be gently clamped in the advancing process of the device, bending and damage to the leaves are reduced, and meanwhile the device is convenient to use. In addition, leaf forms of strip-shaped crops can be fixed according to natural growth forms of the strip-shaped crops, the leaves protruding out of the top of the brush barrel are cut through a first cutting knife, redundant leaf bodies are cut off, and the harvesting requirements of the strip-shaped crops such as green Chinese onions, Chinese chives and garlic are met.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a leaf-cutting device for strip-shaped crops. Background Technology

[0002] In agricultural production, crops need to have their inedible parts removed. Currently, crop harvesting is mostly done by machinery instead of manual labor. The patent CN209546316U, "A Root Cutting and Soil Removal Device for Onions and Garlic Crops", discloses a root cutting and soil removal device. It uses a flipping stop to adjust the crop's posture by utilizing the center of gravity of the crop's roots and stems to facilitate stem cutting. It also uses a posture adjustment and soil removal conveying device parallel to the ground to adjust the crop's posture to remove soil. However, this technical solution has the problem that it cannot be applied to strip-shaped crops because their center of gravity and the shape of their edible parts are different. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to provide a leaf-cutting device for strip-shaped crops.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0005] A leaf-cutting device for strip-shaped crops includes a frame, a guide assembly, a brush assembly, and a first cutting assembly. The guide assembly is mounted on the frame and includes two opposing first guide plates. The brush assembly includes two vertically arranged brush cylinders, with brushes distributed in a predetermined pattern on the outer surface of each brush cylinder. The two brush cylinders are symmetrically arranged, and the strip-shaped crop is placed between the two brush cylinders under the guidance of the first guide plates. The first cutting assembly is mounted on the frame and includes a first cutting blade positioned at the top of the two brush cylinders and between them.

[0006] In some embodiments, the brush assembly further includes a first drive unit and a first transmission assembly. The first drive unit is mounted on a frame. The first transmission assembly includes a first drive wheel, a first driven wheel, and a second driven wheel. The first drive wheel is connected to the output end of the first drive unit. The first driven wheel meshes with the first drive wheel and is connected to one of the brush cylinders. The second driven wheel meshes with the first drive wheel and is disposed opposite to the first driven wheel on both sides of the first drive wheel. The second driven wheel is connected to the other brush cylinder.

[0007] In some embodiments, the brush assembly further includes a first roller and a second roller. The first roller is disposed at the center point of one of the brush cylinders and is also connected to a first driven wheel. The second roller is disposed at the center point of the other brush cylinder and is also connected to a second driven wheel.

[0008] In some embodiments, the brush assembly further includes two fixed supports, which are disposed opposite to each other on the frame and at the bottom of the brush cylinder. One fixed support is movably connected to the first roller, and the other fixed support is movably connected to the second roller.

[0009] In some embodiments, the brush assembly further includes a receiving plate disposed on the frame and at the top of the brush cylinder. A first drive unit is disposed on the receiving plate, with its output end passing through the receiving plate and protruding from the lower surface of the receiving plate. A first roller is movably connected to the receiving plate, and a second roller is movably connected to the receiving plate. A first drive wheel is sleeved on the output end of the first drive unit, a first driven wheel is sleeved outside the first roller and disposed between the brush cylinder and the receiving plate, and a second driven wheel is sleeved outside the second roller and disposed between the brush cylinder and the receiving plate.

[0010] In some embodiments, the first cutting assembly further includes a coupling disposed at the output end of the first drive unit, and the first cutting blade is connected to the first drive unit via the coupling.

[0011] In some embodiments, the first cutting blade is disc-shaped and has a first cutting edge, which is serrated and distributed in the circumferential direction of the first cutting blade.

[0012] In some embodiments, a second cutting assembly is also included, the second cutting assembly including a second cutting blade disposed at the bottom of the two brush tubes and between the two brush tubes.

[0013] In some embodiments, the second cutting assembly further includes a second drive unit disposed on the frame, the output end of the second drive unit being connected to the second cutting blade drive.

[0014] In some embodiments, the second cutting blade is disc-shaped and has a second cutting edge that is serrated and distributed circumferentially on the second cutting blade.

[0015] By adopting the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0016] The leaf-cutting device includes a frame, a guide assembly, a brush assembly, and a first cutting assembly. By setting the guide assembly on the frame, two opposing first guide plates guide the leaves of the strip-shaped crop that are exposed in the soil between two brush cylinders. Since the two symmetrical brush cylinders are set in the vertical direction, they conform to the shape of the strip-shaped crop, and their outer surfaces are provided with brushes distributed in a preset pattern. The brushes have soft deformation characteristics, which can gently hold the leaves during the forward movement of the device, reducing bending and damage to the leaves. At the same time, they can also fix the shape of the strip-shaped crop leaves according to their natural growth form, and use the first cutting blade to cut the leaves that protrude from the top of the brush cylinder, removing the excess leaf body, which meets the harvesting needs of strip-shaped crops such as scallions, leeks, and garlic. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a first structural schematic diagram of the leaf-cutting device for strip-shaped crops described in the specific embodiment.

[0019] Figure 2 This is a top view of the leaf-cutting device for strip-shaped crops described in the specific embodiment.

[0020] Figure 3 This is a schematic diagram of the specific structure of the brush assembly described in the specific implementation method.

[0021] Figure 4 This is another specific structural diagram of the brush assembly described in the specific embodiment.

[0022] Figure label:

[0023] 1. Rack;

[0024] 2. Guiding components;

[0025] 21. First guide plate;

[0026] 3. Brush assembly;

[0027] 31. Brush holder;

[0028] 32. First drive unit;

[0029] 33. First transmission assembly;

[0030] 331. First driving wheel;

[0031] 332. First driven wheel;

[0032] 333. Second driven wheel;

[0033] 34. First roller;

[0034] 35. Second roller;

[0035] 36. Fixed bracket;

[0036] 37. Receiving plate;

[0037] 4. First cutting component;

[0038] 41. First cutting blade;

[0039] 42. Coupling; Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are only for illustrating the present invention and do not limit the scope of the present invention. Similarly, the following embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0041] Please see Figures 1 to 4 This embodiment provides a leaf-cutting device for strip-shaped crops, including a frame 1, a guide assembly 2, a brush assembly 3, and a first cutting assembly 4. The guide assembly 2 is mounted on the frame 1 and includes two opposing first guide plates 21. The brush assembly 3 includes two vertically arranged brush cylinders 31, with brushes distributed in a predetermined manner on the outer surface of each brush cylinder 31. The two brush cylinders 31 are symmetrically arranged, and the strip-shaped crop is placed between the two brush cylinders 31 under the guidance of the first guide plates 21. The first cutting assembly 4 is mounted on the frame 1 and includes a first cutting blade 41, which is located on the top of the two brush cylinders 31 and between them.

[0042] In this embodiment, the frame 1 can be constructed from aluminum alloy profiles, or it can be understood as the frame 1 on the harvesting equipment or a supporting frame structure. The guide component 2 is mounted on the frame 1 and positioned along the forward direction of the entire frame 1. That is, when the frame 1 moves forward to harvest crops, the guide component 2 guides the strip-shaped crops. Specifically, the guide component 2 includes two opposing first guide plates 21. In a preferred embodiment, the front end of the first guide plate 21 has a V-shaped opening, making it more adaptable to strip-shaped crops with different growth forms. The minimum distance between the two first guide plates 21 is greater than the radial dimension of the stem of the strip-shaped crop. This prevents the stem from being stuck between the two first guide plates 21 and also provides sufficient deformation space for the leaves outside the stem, reducing the probability of leaf breakage and improving the appearance of the strip-shaped crop throughout the harvesting process.

[0043] The brush assembly 3 is located behind the guide assembly 2. The brush assembly 3 includes two brush cylinders 31 distributed in a vertical direction. The inside of the brush cylinder 31 can be a hollow structure to reduce the mass of the brush cylinder 31. The outer surface of the brush cylinder 31 is provided with brushes distributed in a preset manner. The preset manner can be spiral or stacked. In this embodiment, the distribution form of the brushes is not limited.

[0044] Please see Figures 3 to 4 In this embodiment, the first cutting blade 41 is located in the middle of the two brush cylinders 31 and at the top of the two brush cylinders 31. The guide component 2 can guide the strip-shaped crop. When the frame 1 moves forward, the strip-shaped crop will move backward relative to the frame 1. The guide component 2 guides the strip-shaped crop to the space between the two brush cylinders 31. The brushes on the outer surface of the brush cylinders 31 can engage the leaves and stems of the strip-shaped crop during rotation. This engagement can be understood as follows: a small amount of friction is generated between the brushes and the stems and leaves, so that the leaves and stems can maintain a vertical direction without deflection. At this time, the first cutting blade 41 on the first cutting component 4 can cut the leaves and stems, completing the trimming of the leaves and stems at the top of the strip-shaped crop.

[0045] The leaf-cutting device shown in this embodiment is suitable for harvesting some strip-shaped crops that have specified height requirements, such as scallions, chives, and garlic scapes. This leaf-cutting device can uniformly trim the top leaves of strip-shaped crops, so that the height of the strip-shaped crops is uniform at harvest and the appearance is better.

[0046] In some embodiments, the brush assembly 3 further includes a first drive unit 32 and a first transmission assembly 33. The first drive unit 32 is mounted on the frame 1. The first transmission assembly 33 includes a first drive wheel 331, a first driven wheel 332, and a second driven wheel 333. The first drive wheel 331 is connected to the output end of the first drive unit 32. The first driven wheel 332 meshes with the first drive wheel 331. The first driven wheel 332 is connected to one of the brush cylinders 31. The second driven wheel 333 meshes with the first drive wheel 331 and is disposed opposite to the first driven wheel 332 on both sides of the first drive wheel 331. The second driven wheel 333 is connected to the other brush cylinder 31.

[0047] The first drive unit 32 can be a servo motor, and the first transmission component 33 can be a synchronous pulley, gear, etc. In this embodiment, gear meshing is preferred. The first transmission component 33 specifically includes a first driving wheel 331, a first driven wheel 332, and a second driven wheel 333. The first driving wheel 331 is connected to the output end of the first drive unit 32. For example, the first driving wheel 331 can be connected to the drive shaft of the servo motor through a keyway. The outer circumference of the first driving wheel 331 has teeth, and the outer circumference of the first driven wheel 332 also has teeth. Thus, the first driving wheel 331 and the first driven wheel 332 are meshed to realize the transmission connection from the first driving wheel 331 to the first driven wheel 332. Similarly, the transmission connection between the second driven wheel 333 and the first driving wheel 331 is the same as the transmission connection between the first driven wheel 332 and the first driving wheel 331. It should be noted that the first driven wheel 332 is connected to one of the brush cylinders 31, and the second driven wheel 333 is connected to the other brush cylinder 31. When the first driving wheel 331 rotates, it can drive both brush cylinders 31 to rotate simultaneously. This method can reduce the number of first drive units 32 and reduce manufacturing costs.

[0048] Please see Figures 3 to 4 In some embodiments, the brush assembly 3 further includes a first roller 34 and a second roller 35. The first roller 34 is located at the center point of one of the brush cylinders 31 and is also connected to a first driven wheel 332. The second roller 35 is located at the center point of the other brush cylinder 31 and is also connected to a second driven wheel 333.

[0049] In this embodiment, the brush assembly 3 further includes a first roller 34 and a second roller 35. One brush cylinder 31 is sleeved on the first roller 34, and the first roller 34 is connected to a first driven wheel 332. Specifically, the first roller 34 and the first driven wheel 332 can be connected by a keyway. Similarly, the other brush cylinder 31 is sleeved on the second roller 35, and the second roller 35 is connected to a second driven wheel 333. The rotation of the first driven wheel 332 and the second driven wheel 333 drives the first roller 34 and the second roller 35 to rotate, thereby realizing the rolling of the two brush cylinders 31. In some optional embodiments, the first roller 34 and the brush cylinder 31 can be integrally formed, and the second roller 35 and the other brush cylinder 31 can be integrally formed.

[0050] Please see Figures 3 to 4 In some embodiments, the brush assembly 3 further includes two fixed supports 36, which are disposed opposite to each other on the frame 1 and at the bottom of the brush cylinder 31. One fixed support 36 is movably connected to the first roller 34, and the other fixed support 36 is movably connected to the second roller 35.

[0051] In this embodiment, a fixed bracket 36 is movably connected to the first roller 34. This connection can be achieved by having a bearing on the fixed bracket 36, through which the first roller 34 passes and engages. Similarly, the connection between the other fixed bracket 36 and the second roller 35 can be similar to the connection between the first roller 34 and the fixed bracket 36. Both ends of the fixed bracket 36 are locked to the frame 1. This ensures that the brush cylinder 31 remains vertical during rotation, preventing eccentricity due to the compression of strip-shaped crops. It also ensures the coaxiality of the first roller 34 and the first driven wheel 332, and the second roller 35 and the second driven wheel 333, thereby improving the overall service life of the device.

[0052] In some embodiments, the brush assembly 3 further includes a receiving plate 37, which is disposed on the frame 1 and on the top of the brush cylinder 31. A first drive unit 32 is disposed on the receiving plate 37, and the output end of the first drive unit 32 passes through the receiving plate 37 and protrudes from the lower surface of the receiving plate 37. A first roller 34 is movably connected to the receiving plate 37, and a second roller 35 is movably connected to the receiving plate 37. A first driving wheel 331 is sleeved on the output end of the first drive unit 32, a first driven wheel 332 is sleeved on the outside of the first roller 34 and is disposed between the brush cylinder 31 and the receiving plate 37, and a second driven wheel 333 is sleeved on the outside of the second roller 35 and is disposed between the brush cylinder 31 and the receiving plate 37.

[0053] The receiving plate 37 can be understood as a flat plate structure. It is mounted on the frame 1 and positioned on top of the brush cylinder 31. The first drive unit 32 is located on the upper surface of the receiving plate 37. The output end of the first drive unit 32 passes through the receiving plate 37 and protrudes from its lower surface to be connected to the first drive wheel 331. The first roller 34 and the receiving plate 37 can also be movably connected via bearings, as can the second roller 35. In this embodiment, the first transmission assembly 33 is positioned between the receiving plate 37 and the brush cylinder 31.

[0054] For further details, please refer to Figure 3 In some embodiments, the first cutting assembly 4 further includes a coupling 42, which is disposed at the output end of the first drive unit 32. The first cutting blade 41 is connected to the first drive unit 32 via the coupling 42. It is understood that a first central shaft integrally formed with the first cutting blade 41 is located at the center point of the first cutting blade 41. The first central shaft is connected to the output end of the first drive unit 32 via the coupling 42, thereby enabling the first drive unit 32 to simultaneously drive the first cutting blade 41 to rotate while driving the first drive wheel 331 to rotate. It is understood that the first drive wheel 331 is disposed between the first cutting blade 41 and the output end of the first drive unit 32. This approach can further reduce the number of drive devices and lower the overall manufacturing cost of the device.

[0055] In some embodiments, the first cutting blade 41 is disc-shaped and has a first cutting edge 41, which is serrated and distributed circumferentially. This increases the shearing force of the first cutting blade 41 during the rotary cutting process, resulting in a smoother cut surface for the strip-shaped crop.

[0056] In some embodiments, a second cutting assembly is further included, comprising a second cutting blade disposed at the bottom of two brush cylinders 31 and between the two brush cylinders 31. In some embodiments, for strip-shaped crops such as lettuce, it is not necessary to retain their roots during harvesting; therefore, the design of the second cutting blade can meet the harvesting requirements of such strip-shaped crops. With the second cutting blade disposed at the bottom of the two brush cylinders 31, when the brush cylinders 31 are used to fix the strip-shaped crop, the first cutting blade 41 and the second cutting blade can simultaneously cut the top and bottom of the strip-shaped crop, improving harvesting efficiency.

[0057] In some embodiments, the second cutting assembly further includes a second drive unit disposed on the frame 1, and the output end of the second drive unit is connected to the second cutting blade via a transmission connection. The second drive unit may be a servo motor, and the transmission connection between the second drive unit and the second cutting blade may refer to the first cutting blade 41. For example, a second central shaft integrally formed with the second cutting blade is provided at the center point of the second cutting blade, and the second central shaft is connected to the output end of the second drive unit via a coupling 42, thereby enabling the second drive unit to drive the second cutting blade to rotate.

[0058] In some embodiments, the second cutting blade is disc-shaped and has a second cutting edge that is serrated and distributed circumferentially. This increases the shearing force of the second cutting blade during the rotary cutting process, resulting in a smoother cut surface for strip-shaped crops.

[0059] The leaf-cutting device includes a frame 1, a guide assembly 2, a brush assembly 3, and a first cutting assembly 4. By setting the guide assembly 2 on the frame 1, two opposing first guide plates 21 guide the leaves of the strip-shaped crop that are exposed in the soil to the space between two brush cylinders 31. Since the two symmetrical brush cylinders 31 are set in the vertical direction, they conform to the shape of the strip-shaped crop, and their outer surfaces are provided with brushes distributed in a preset manner. The brushes have soft deformation characteristics, which can gently hold the leaves during the forward movement of the device, reducing bending and damage to the leaves. At the same time, they can also fix the shape of the leaves of the strip-shaped crop according to its natural growth form. The first cutting blade 41 is used to cut the leaves that protrude from the top of the brush cylinder 31, removing the excess leaf body to meet the harvesting needs of strip-shaped crops such as scallions, leeks, and garlic.

[0060] The above description is only a part of the embodiments of this utility model, and does not limit the scope of protection of this utility model. Any equivalent device or equivalent process transformation made based on the content of this utility model specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this utility model.

Claims

1. A leaf cutting device for strip crops, characterized in that: include: frame; A guide assembly is arranged on the frame, and the guide assembly comprises two first guide plates arranged opposite to each other; The brush assembly comprises two vertically arranged brush cylinders, the outer surface of the brush cylinders is provided with brushes distributed in a preset manner, the two brush cylinders are symmetrically arranged, and the strip crop is placed between the two brush cylinders under the guidance of the first guide plate; The first cutting assembly is arranged on the frame, and the first cutting assembly comprises a first cutting knife, and the first cutting knife is arranged on the top of the two brush cylinders and between the two brush cylinders.

2. The strip crop cutting device according to claim 1, characterized in that: The brush assembly also includes: A first driving unit, arranged on the frame; The first transmission assembly includes a first driving wheel, a first driven wheel and a second driven wheel, wherein the first driving wheel is connected to the output end of the first driving unit, the first driven wheel is meshed with the first driving wheel, the first driven wheel is connected to one of the brush cylinders, the second driven wheel is meshed with the first driving wheel and is arranged on both sides of the first driving wheel opposite to the first driven wheel, and the second driven wheel is connected to the other brush cylinder.

3. The strip crop cutting device according to claim 2, characterized in that: The brush assembly also includes: A first roller, disposed at the center point of one of the brush cylinders, the first roller also being connected to the first driven wheel; The second roller is arranged at the center point of another of the brush cylinders, and the second roller is also connected to the second driven wheel.

4. The strip crop cutting device according to claim 3, characterized in that: The brush assembly also includes: Two fixed brackets are arranged on the frame opposite to each other and at the bottom of the brush cylinder. One of the fixed brackets is movably connected to the first roller, and the other fixed bracket is movably connected to the second roller.

5. The strip crop cutting device according to claim 4, characterized in that: The brush assembly also includes: A receiving plate is arranged on the frame and on the top of the brush cylinder, the first driving unit is arranged on the receiving plate, the output end of the first driving unit passes through the receiving plate and protrudes out of the lower surface of the receiving plate, the first roller is movably connected to the receiving plate, and the second roller is movably connected to the receiving plate; The first driving wheel is sleeved on the output end of the first driving unit, the first driven wheel is sleeved on the outside of the first roller, and the first driven wheel is arranged between the brush cylinder and the receiving plate, and the second driven wheel is sleeved on the outside of the second roller, and the second driven wheel is arranged between the brush cylinder and the receiving plate.

6. The strip crop leaf cutting device according to claim 2, characterized in that: The first cutting assembly also includes: A coupling is arranged at the output end of the first driving unit, and the first cutting blade is drivingly connected to the first driving unit through the coupling.

7. The strip crop cutting device according to claim 6, characterized in that: The first cutting knife is in a disc shape and has a first cutting blade. The first cutting blade is in a sawtooth shape and distributed on the circumference of the first cutting knife.

8. The strip crop leaf cutting device according to claim 1, characterized in that: Also includes: The second cutting assembly comprises a second cutting knife, wherein the second cutting knife is arranged at the bottom of the two brush cylinders and between the two brush cylinders.

9. The strip crop leaf cutting device according to claim 8, characterized in that: The second cutting assembly also includes: The second driving unit is arranged on the frame, and the output end of the second driving unit is drivingly connected to the second cutting knife.

10. The strip crop leaf cutting device according to claim 9, characterized in that: The second cutting knife is in a disc shape and has a second cutting blade. The second cutting blade is in a sawtooth shape and is distributed on the circumference of the second cutting knife.

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