Corn field weeding machine and weeding collection method thereof

By designing a cornfield weeding machine and utilizing visual recognition and separation collection technologies, the problem of recurrent weed growth after weeding in cornfields has been solved, improving weeding efficiency and environmental friendliness.

CN121605804APending Publication Date: 2026-03-06HARBIN UNIV OF SCI & TECH
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Patent Information

Application Number
CN202511738242.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In existing technologies, weeds tend to grow back repeatedly after weeding in cornfields, and traditional methods are inefficient, costly, and pose a significant risk of environmental pollution.

Method used

Design a corn field weeding machine equipped with a vision device, a weeding disc, a drive device, and a sieving device. It identifies the target crop through vision, avoids or cuts weeds, and separates and collects weeds and soil during rotation.

Benefits of technology

It achieves efficient weed control and reduces weed residue, reduces repeated weed growth in the field, and reduces labor intensity and environmental pollution risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a corn field weeding machine and a weeding collection method thereof, and relates to the technical field of field mechanical weeding. The main components comprise wheel type advancing mechanisms arranged on the two sides of a vehicle body and an image recognition device arranged on a machine frame. Judging whether weeds exist in the region or not; the weeding disc device is arranged below the image recognition mechanism; when the image contains the target crop, the weeding disc is rotated, and the weeding disc avoids the target crop; when the image does not contain the target crop, the weeding disc is rotated to remove weeds; a driving device is connected behind the weeding disc, and a filter sieve is installed below the weeding disc. By means of simple mechanical equipment and an intelligent control system, mechanical automatic weeding and weed collection can be achieved, the weeding efficiency is high, labor input is effectively saved, and the problem that an existing weeding device cannot collect the removed weeds to enable the weeds to grow repeatedly is solved.
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Description

Technical Field

[0001] This invention relates to the field of mechanical weeding technology, and in particular to a weeding machine and its weed collection method. Background Technology

[0002] Weed control is a crucial part of corn cultivation. Its main purpose is to control weed growth through chemical or physical methods, thereby reducing competition for water, nutrients, and sunlight from the corn and ultimately improving yield and quality.

[0003] Cornfields are home to a wide variety of weeds, mainly including annual grasses (such as crabgrass, foxtail, and barnyard grass) and broadleaf weeds (such as lambsquarters, amaranth, and chrysanthemum greens). These weeds not only compete with corn for resources but can also become intermediate hosts for pests and diseases, seriously affecting corn growth and yield.

[0004] While traditional manual and mechanical weeding methods are effective in some situations, they suffer from problems such as low efficiency, high cost, and potential damage to the environment and crops. For example, manual weeding, although precise, is labor-intensive and often fails to completely eradicate weeds; while existing mechanical weeding is more efficient, the lack of post-weed collection leads to repeated weed growth, especially after rain.

[0005] Environmental and health risks of chemical weed control: While chemical herbicides are highly effective, long-term use can lead to increased weed resistance, worsened environmental pollution, and potential harm to human health. Furthermore, long-residual herbicides pose a significant problem of soil and water pollution.

[0006] Therefore, it is necessary to design a functional mechanical weeding and weed collection device to solve the above-mentioned technical problems. Summary of the Invention

[0007] To address the shortcomings of the aforementioned technologies, the purpose of this practical innovation is to provide a cornfield weeding machine and its weed collection method, in order to solve the problem of repeated weed growth after weeding in the existing technology.

[0008] To address the shortcomings of existing technologies, the present invention aims to achieve the above objectives. The technical solution adopted by the present invention is as follows:

[0009] A cornfield weeding machine and its weeding and collection method are characterized by comprising a support frame (2) installed under the vehicle body (1), axles (5) and rubber wheels (6) on both sides of the vehicle body (1), a vision device (9), a vision device fixing frame (8), a weeding disc (3), a drive device (10) and a sieving device (7) on the support frame (2), the vision device (9) being fixed above the center line of the weeding disc by a curved vision device fixing frame (8), the drive device (10) and the weeding disc (3) being connected and driven by a rotating shaft (4), the drive device (10) being arranged on the center line of the weeding disc, and the sieving device (7) being arranged at equal widths on the lower side of the weeding disc (3).

[0010] Furthermore, the vision device (9), vision device mounting bracket (8), weeding disc (3), rotating shaft (4), and drive device (10) are arranged side by side on the frame.

[0011] Furthermore, the vision device (9), vision device mounting bracket (8), weeding disc (3), rotating shaft (4), and drive device (10) are arranged one after the other on the frame for every two weeding mechanisms.

[0012] Furthermore, the filter device (7) is equipped with two different filter screens, one upper and one lower.

[0013] Furthermore, the sieve above the filter device (7) is a 1mm thick plate with 8mm square holes, and the opening rate is 40%.

[0014] Furthermore, the sieve below the filter device (7) is made of a 1mm thick plate with 2mm square holes, and the opening rate is 35%.

[0015] Furthermore, the weeding tray (3) has six partitioned areas inside, including five semi-enclosed partitioned areas and one open partitioned area.

[0016] Furthermore, five semi-enclosed dividing zones, each at 60 degrees, are distributed on the weeding tray (3). The semi-enclosed dividing zones have half of their edges not closed, and blades are arranged on the edges. If no target crop is detected, the plant rotates to this dividing zone.

[0017] Furthermore, the semi-enclosed partition is used for collection when rotated downwards, and for tipping when the weeding disc (3) is rotated 270 degrees.

[0018] Based on the above technical solutions,

[0019] Compared with the prior art, the advantages of the present invention are as follows: by setting the weeding disc (3) on the support frame (2), weeds can be dug up when the weeding disc (3) rotates below. After the weeding disc (3) rotates 270 degrees in this area, the weeds are poured into the sieving device (7), and then the sieving device (7) separates the weeds and soil, thereby realizing weeding and collection, reducing the residue of weeds in the field and reducing the repeated growth of weeds in the field. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the weeding machine structure involved in the present invention.

[0022] Figure 2 This is a front view schematic diagram of the weeding machine involved in the present invention.

[0023] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the middle AA section;

[0024] Figure 4 This is a side view of the weeding machine involved in the present invention.

[0025] Figure 5 for Figure 4 Schematic diagram of the cross-section of BB.

[0026] Figure 6 This is an exploded view of the location of the vision device and weeding disc involved in the present invention.

[0027] Figure 7 This is a flowchart of the weed collection method involved in the present invention.

[0028] In the diagram: 1-Vehicle body, 2-Support frame, 3-Weeding disc, 4-Shaft, 5-Wheel axle, 6-Rubber wheel, 7-Screen, 8-Vision mounting frame, 9-Vision device, 10-Drive device Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] A cornfield weeding machine and its weeding and collection method are characterized by comprising a support frame (2) installed under the vehicle body (1), axles (5) and rubber wheels (6) on both sides of the vehicle body (1), a vision device (9), a vision device fixing frame (8), a weeding disc (3), a drive device (10) and a sieving device (7) on the support frame (2), the vision device (9) being fixed above the center line of the weeding disc by a curved vision device fixing frame (8), the drive device (10) and the weeding disc (3) being connected and driven by a rotating shaft (4), the drive device (10) being arranged on the center line of the weeding disc, and the sieving device (7) being arranged at equal widths on the lower side of the weeding disc (3).

[0031] Furthermore, the vision device (9), vision device mounting bracket (8), weeding disc (3), rotating shaft (4), and drive device (10) are arranged side by side on the frame.

[0032] Furthermore, the vision device (9), vision device mounting bracket (8), weeding disc (3), rotating shaft (4), and drive device (10) are arranged one after the other on the frame for every two weeding mechanisms.

[0033] Furthermore, the filter device (7) is equipped with two different filter screens, one upper and one lower.

[0034] Furthermore, the sieve above the filter device (7) is a 1mm thick plate with 8mm square holes, and the opening rate is 40%.

[0035] Furthermore, the sieve below the filter device (7) is made of a 1mm thick plate with 2mm square holes, and the opening rate is 35%.

[0036] Furthermore, the weeding tray (3) has six partitioned areas inside, including five semi-enclosed partitioned areas and one open partitioned area.

[0037] Furthermore, five semi-enclosed dividing zones, each at 60 degrees, are distributed on the weeding tray (3). The semi-enclosed dividing zones have half of their edges not closed, and blades are arranged on the edges. If no target crop is detected, the plant rotates to this dividing zone.

[0038] Furthermore, the semi-enclosed partition is used for collection when rotated downwards, and for tipping when the weeding disc (3) is rotated 270 degrees.

[0039] The weeding and collection principle is as follows: during weeding, four vision devices (9) identify whether there is a target crop below. If there is a target crop, the weeding disc (3) is rotated to the open partition area and avoids the target crop during the forward movement. If no target crop is identified, the weeding disc (3) will rotate to the semi-closed partition area. During the forward movement, the blades on the edge of the semi-closed partition area will cut the weeds in the field. The collected weeds and soil enter the semi-closed partition area. After the semi-closed partition area is rotated 270 degrees, the opening of the semi-closed partition area faces downward, and the weeds and soil in the semi-closed partition area are poured into the sieve device (7) below.

[0040] Furthermore, in the sieving device (7), the first layer will block large grass stalks and residues, and the second layer will block smaller grass seeds, fine roots and straw fragments, thereby separating soil and weeds, allowing the soil to return to the field, and the weeds will remain in the filter screen after filtration and can be removed after weeding is completed, thus achieving the collection of weeds.

[0041] It should be noted that in this application, relational terms such as "above" and "below" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A corn field weeder and its weeding collection method, characterized by, Including the installation support frame (2) arranged below the vehicle body (1), wheel shaft (5), rubber wheel (6) are arranged on both sides of the vehicle body (1), visual device (9), visual device fixing frame (8), weeding disc (3), driving device (10) and screening device (7) on the support frame (2), the visual device (9) is fixed above the center line of the weeding disc by the curved visual device fixing frame (8), the driving device (10) and the weeding disc (3) are connected and driven by the rotating shaft (4), the driving device (10) is arranged on the center line of the weeding disc, and the screening device (7) is arranged below the side of the weeding disc (3).

2. A corn field weeder and its weeding collection method according to claim 1, wherein, The visual device (9), the visual device fixing frame (8), the weeding disc (3), the rotating shaft (4) and the driving device (10) are arranged on the rack.

3. The corn field weeding machine and its weeding collection method according to claim 1, wherein The visual device (9), the visual device fixing frame (8), the weeding disc (3), the rotating shaft (4) and the driving device (10) are arranged on the rack.

4. The corn field weeding machine and its weeding collection method according to claim 1, wherein The filtering device (7) is arranged with two different filter screens.

5. The corn field weeding machine and its weeding collection method according to claim 4, wherein The screening mesh above the filtering device (7) is a square hole with a hole diameter of 8mm on a 1mm thick plate, and the hole rate is 40%.

6. A corn field weeder and its weeding collection method according to claim 4, wherein The screening mesh below the filtering device (7) is a square hole with a hole diameter of 2mm on a 1mm thick plate, and the hole rate is 35%.

7. The corn field weeding machine and its weeding collection method according to claim 1, wherein The weeding disc (3) is provided with six partition areas inside, and the six partition areas include five semi-closed partition areas and one open partition area.

8. The corn field weeding machine and its weeding collection method according to claim 7, wherein The semi-closed partition area is distributed on the weeding disc (3) by five, and each 60 degrees, and the semi-closed partition area is arranged with a half edge not closed at the edge, and the edge is arranged with a blade, and if the target crop is not identified, it is rotated to the partition area.

9. A corn field weeder and its weeding collection method according to claim 7 and claim 8, wherein, The semi-closed partition area is collected when rotating to the lower part, and the weeding disc (3) is rotated by 270 degrees to pour.

10. The corn field weeding machine and its weeding collection method according to claim 7, wherein The open partition area is a 60-degree area distributed on the weeding disc (3), and the open partition area is not shielded by the plate, and if the target crop is identified, it is rotated to the partition area.