A device for topping and bud suppression of flue-cured tobacco

Abstract

The application discloses a tobacco topping and bud suppression device, a tobacco plant distance measuring device is installed on the upper end of a fixing rod, a first sleeve fixedly connected with the fixing rod is connected with a first clamping mechanism and a pesticide spraying mechanism in the circumferential direction, the lower end of the first sleeve is connected with a second sleeve, a second motor is arranged in the second sleeve to drive the first sleeve to rotate relative to the second sleeve, the rotation of the first sleeve drives the pesticide spraying mechanism to move above a tobacco plant cutting point, the side of the second sleeve is fixedly connected with a second clamping mechanism, and a cutting knife assembly is further arranged between the first clamping mechanism and the second clamping mechanism; the first clamping mechanism and the second clamping mechanism clamp the tobacco plant, and the cutting knife assembly cuts the tobacco plant; the distance measuring device, the first motor and the second motor and the steering wheel of the first clamping mechanism and the second clamping mechanism are all connected with a controller. Through integration of a mechanical claw, a topping cutting knife and a bud suppression spraying head device, integrated operation of topping and bud suppression is realized, operation efficiency is improved, labor intensity is reduced, and the cutting is neat, bud suppression is timely, so that the yield and quality of tobacco leaves are improved.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology, specifically relating to a device for topping and suppressing buds in flue-cured tobacco. Background Technology

[0002] In the cultivation of flue-cured tobacco, topping is one of the important agricultural techniques for improving tobacco yield and quality. Topping, which involves removing the growing point at the top of the tobacco plant, promotes the growth of lateral branches, increases the number of leaves, and improves the yield and quality of tobacco leaves. Traditional topping is mainly done manually, which has the following disadvantages:

[0003] 1. Manual topping requires a large workforce and involves prolonged bending and stooping, resulting in high labor intensity and easy fatigue for workers.

[0004] 2. Manual topping is slow and inefficient, and cannot meet the needs of large-scale planting. Especially during the vigorous growth period of tobacco leaves, manual topping is difficult to complete in a timely manner, which affects the growth and development of tobacco leaves.

[0005] 3. When manually topping, inconsistent operating skills and force can lead to uneven cuts, affecting the recovery of tobacco plants and the growth of lateral branches.

[0006] 4. After topping, the lateral branches of the tobacco plant will sprout rapidly, requiring timely application of a bud-suppressing agent to control their growth. Manual topping is cumbersome, making timely application of the agent difficult, resulting in poor bud-suppressing effects.

[0007] To address these issues, some automated topping devices have been developed. However, these devices typically only have topping functionality and cannot simultaneously apply bud-suppressing agents. Alternatively, while they may be able to perform both topping and bud-suppressing operations, they have certain design limitations, such as unstable fixing, inaccurate cutting, and complex operation, failing to meet the demands for efficient, precise, and integrated operations.

[0008] For example, Chinese Patent Application No. 202211634766.6 discloses a handheld adjustable cigar tobacco leaf topping and bud suppression integrated device. The integrated blade combines the bud clamping component, the bud cutting component, and the bud suppression agent nozzle together, realizing the joint operation of topping and bud suppression by a single person and solving the problem of excessive application of bud suppression agent. However, the bud suppression nozzle of this device is located below the bud cutting component, making it difficult to spray the bud suppression agent to the bud cutting area. In addition, the bud clamping component is at the top. After the bud is cut off, the bud clamping component loses its clamping object, and the plant shakes, resulting in inaccurate spraying of the bud suppression agent. Summary of the Invention

[0009] To address the aforementioned problems in existing technologies, this invention provides a tobacco topping and bud suppression device that is stable, precise in cutting, and easy to operate, meeting the needs of efficient, precise, and integrated operations.

[0010] The objective of this invention is achieved in the following manner: a tobacco topping and bud suppression device, comprising a fixed rod and a first sleeve fixedly connected together, both the fixed rod and the first sleeve being hollow structures; a tobacco plant ranging device is installed at the upper end of the fixed rod; a first clamping mechanism and a spraying mechanism are connected to the first sleeve along the circumferential direction; a second sleeve is connected to the lower end of the first sleeve; a second motor is installed inside the second sleeve to drive the first sleeve to rotate relative to the second sleeve; the rotation of the first sleeve drives the spraying mechanism to move above the tobacco plant cutting point; a second clamping mechanism is fixedly connected to the side of the second sleeve; a cutting blade assembly is also provided between the first clamping mechanism and the second clamping mechanism; both the first clamping mechanism and the second clamping mechanism include a servo motor, left and right grippers, and a transmission mechanism; the servo motor controls the opening and closing of the left and right grippers through the transmission mechanism to clamp the tobacco plant; the cutting blade assembly includes a first motor, a transmission mechanism, and left and right cutting blades; the first motor drives the left and right cutting blades to open and close through the transmission mechanism to cut the tobacco plant; the tobacco plant ranging device, the first motor, the second motor, and the servo motors of the first clamping mechanism and the second clamping mechanism are all connected to a controller.

[0011] The angle between the first clamping mechanism and the spraying mechanism is 45-135°.

[0012] The left and right grippers of the first and second gripping mechanisms are staggered at unequal heights, and the number of left and right grippers is not equal.

[0013] The grippers on the same side of the first and second gripping mechanisms are connected by support rods between adjacent layers.

[0014] Trapezoidal teeth are provided on the inner surfaces of the left and right jaws of both the first and second clamping mechanisms.

[0015] The dimensions of the left and right jaws of the first clamping mechanism are smaller than those of the left and right jaws of the second clamping mechanism.

[0016] A Y-shaped stop bar is also provided below the second clamping mechanism, and the Y-shaped stop bar is fixedly connected to the second sleeve.

[0017] The left and right cutting blades of the cutting blade assembly are shaped like cross scissors.

[0018] The tobacco plant ranging device is a depth camera.

[0019] Compared to existing technologies, this invention provides a tobacco topping and bud suppression device. By integrating a mechanical claw, a topping cutter, and a bud suppression nozzle, it achieves integrated topping and bud suppression operations, improving work efficiency, reducing labor intensity, and ensuring neat cuts and timely bud suppression, thereby increasing tobacco leaf yield and quality. The device is designed with ease of operation, high efficiency, and equipment stability in mind to meet the demands of modern tobacco cultivation for automation and intelligent technology. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a structural schematic diagram of the present invention from another angle.

[0022] Figure 3 This is a structural schematic diagram of the present invention from another angle.

[0023] Figure 4 This is a schematic diagram of the second clamping mechanism.

[0024] Figure 5 This is a schematic diagram of the cutting blade assembly.

[0025] Figure 6 This is a diagram showing the connection relationship between the first sleeve and the second sleeve. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. After reading the contents of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by this invention.

[0027] like Figure 1-3 As shown, a tobacco topping and bud suppression device includes a fixed rod 100 and a first sleeve 101 that are fixedly connected. Both the fixed rod 100 and the first sleeve 101 are hollow structures. A tobacco plant distance measuring device 1 is installed on the upper end of the fixed rod 100. The tobacco plant distance measuring device 1 is a depth camera. Ordinary cameras are generally used to obtain the RGB color information of objects, while depth cameras are used to obtain the distance information from the object to the camera, which is used to accurately locate the top of the tobacco plant.

[0028] The first sleeve 101 is circumferentially connected to the first clamping mechanism 2 and the spraying mechanism 4. The first clamping mechanism 2 includes a first servo motor 21, first left and right grippers 22, and a first transmission mechanism. The housing of the first servo motor 21 is fixedly connected to the first sleeve 101 via a first connecting rod 25. The first transmission mechanism includes a meshing drive gear and a driven gear. The drive gear is fixedly connected to the first left gripper, and the driven gear is fixedly connected to the first right gripper. The first servo motor 21 drives the drive gear to rotate, which in turn drives the driven gear to rotate, thereby opening and closing the first left and first right grippers. The spraying mechanism 4 includes a liquid storage device, a liquid inlet pipe, and a nozzle. The liquid storage device is mounted on the top-loading machine. The liquid inlet pipe enters from the top of the fixed rod 100 and connects to the nozzle of the spraying mechanism 4. A solenoid valve is installed on the liquid inlet pipe, which is controlled by a controller. To accommodate the rotation of the first sleeve 101, the liquid inlet pipe can be made of a plastic hose.

[0029] like Figure 6 As shown, the lower end of the first sleeve 101 is connected to the second sleeve 102. The upper end of the second sleeve 102 is fixedly connected to the bearing 6. The middle of the lower end of the first sleeve 101 extends out of the third connecting rod 7. The third connecting rod 7 can extend into the bearing 6 at the upper end of the second sleeve 102. The lower end of the first sleeve 101 is supported on the bearing 6. The end of the third connecting rod 7 is connected to the first gear 8. The second sleeve 102 is equipped with a second motor 9. The output shaft of the second motor is connected to the second gear 10. The first gear 9 meshes with the second gear 10. When the second motor 9 rotates, it drives the third connecting rod 7 and the first sleeve 101 to rotate relative to the second sleeve 102 through the first gear 8 and the second gear 10. The rotation of the first sleeve 101 drives the spraying mechanism 4 to move above the tobacco cutting point.

[0030] The second sleeve 102 is fixedly connected to the second clamping mechanism 3 on its side, such as Figure 4 As shown, the second clamping mechanism 3 includes a second servo motor 31, second left and right grippers 32, and a second transmission mechanism 34. The housing of the second servo motor 31 is directly fixedly connected to the second sleeve 102. The second transmission mechanism 34 also includes a driving gear and a driven gear that mesh with each other. The driving gear is fixedly connected to the second left gripper, and the driven gear is fixedly connected to the second right gripper. The second servo motor 31 drives the driving gear to rotate, and the driving gear drives the driven gear to rotate, thereby realizing the opening and closing of the second left gripper and the second right gripper.

[0031] A cutting blade assembly 5 is also provided between the first clamping mechanism 2 and the second clamping mechanism 3, such as... Figure 5As shown, the cutting blade assembly 5 includes a first motor, a transmission mechanism, and left and right cutting blades 52. The first motor is housed in the second connecting rod 51. The transmission mechanism includes a main and driven sprockets, a chain, and main and driven gears. The output shaft of the first motor is connected to the driving sprocket, which is connected to the driven sprocket via the chain. The driven sprocket meshes with the main and driven gears 53, which are respectively fixedly connected to the left and right cutting blades 52. The first motor drives the left and right cutting blades 52 to open and close through the transmission mechanism, thereby cutting the tobacco. The first motor, main and driven sprockets, and chain... Figure 5 This technology is not reflected in the above, and is a mature technology in this field.

[0032] The servo motors of the tobacco plant measuring device 1, the first motor, the second motor, the first clamping mechanism 2, and the second clamping mechanism 3 are all connected to the controller (not shown in the figure). The tobacco plant measuring device 1 positions the top of the tobacco plant and transmits the signal to the controller. The controller controls the servo motor to start and controls the forward and reverse rotation of the motor and servo motor to realize the opening and closing of the left and right grippers of the first clamping mechanism and the second clamping mechanism, as well as the opening and closing of the left and right cutting blades.

[0033] The tops of tobacco plants cut off by the cutting blade assembly 5 may carry pests and diseases. Improper disposal could become a route for the spread of these pests and diseases, threatening other healthy tobacco plants, polluting the farmland environment, disrupting the ecological balance, increasing the difficulty of field management, and affecting subsequent agricultural operations. Generally, a tobacco plant top collection device 200 is installed on the topping machine to collect and dispose of the cuts. The second clamping mechanism 3 rotates to a certain angle and is positioned above the tobacco plant top collection device 200.

[0034] Furthermore, the included angle between the first clamping mechanism 3 and the spraying mechanism 4 is 45-135°, preferably 90°. A suitable included angle between the first clamping mechanism 2 and the spraying mechanism 4 is designed based on actual working conditions such as the distance between the tobacco plant and the top collection device 200. The second motor 10 drives the first sleeve 101 to rotate, causing the spraying mechanism 4 to rotate above the tobacco plant. The spraying mechanism 4 sprays inhibitors onto the top of the topped tobacco plant. The first clamping mechanism 2 rotates above the top collection device 200, and the left and right grippers of the first clamping mechanism 2 open, allowing the top of the knocked-off pressure column to fall into the top collection device 200.

[0035] The left and right grippers of the first gripping mechanism 2 and the second gripping mechanism 3 are arranged at unequal heights and are staggered, and the number of left and right grippers is also unequal. The staggered arrangement of the left and right grippers at unequal heights is more adaptable to tobacco plants of different diameters and makes it easier to grip them firmly.

[0036] In a further preferred embodiment, the grippers on the same side of the first gripping mechanism 2 and the second gripping mechanism 3 are connected by a support rod 24 between adjacent layers, so that the grippers on the same side can move synchronously.

[0037] A further preferred design is that trapezoidal teeth are provided on the inner surfaces of the left and right grippers of both the first gripping mechanism 2 and the second gripping mechanism 3. The trapezoidal teeth design can increase the contact area between the grippers and the tobacco, making the grippers hold the tobacco more stably and firmly.

[0038] In a further preferred embodiment, the left and right grippers of the first clamping mechanism 2 are smaller than those of the second clamping mechanism 3. The larger second clamping mechanism 3 is used at the bottom because the larger grippers have a larger grasping space, allowing for a better gripping of the tobacco plant. The top of the tobacco plant is relatively small, so the smaller first clamping mechanism 2 can hold it well. The first clamping mechanism 2 and the second clamping mechanism 3 work together to provide a more secure gripping of both the upper and lower parts of the tobacco plant.

[0039] In a further preferred embodiment, a Y-shaped stop bar 33 is also provided below the second clamping mechanism 3, and the Y-shaped stop bar 33 is fixedly connected to the second sleeve 102. The Y-shaped stop bar 33 design can ensure that when the gripper grasps the target, it can grasp the target in the middle position between the two grippers and will not get stuck in the gripper, especially the gripper near the main and driven gears, which would affect the opening and closing movement of the gripper.

[0040] The left and right cutting blades of the cutting blade assembly 5 are shaped like cross scissors. This cross-cutting method, from the outside in, ensures clean cuts, which is beneficial for the recovery of the tobacco plant and the growth of lateral branches. "Outside" refers to the direction away from the first motor and the transmission gear, and "inside" refers to the direction closer to the first motor and the transmission gear.

[0041] Working process: The depth camera accurately locates the top of the tobacco plant and transmits the signal to the controller. The controller activates the first servo motor 21 and the second servo motor 31, causing the left and right grippers of the first and second clamping mechanisms to close, gripping the top and bottom of the tobacco plant. The first servo motor 21 and the second servo motor 31 transmit the gripping position information to the controller. The controller then controls the first motor to rotate, causing the left and right cutting blades 52 to close and cut off the top of the tobacco plant. The second motor rotates, driving the first sleeve 101 to rotate. The first clamping mechanism 2, carrying the cut-off top of the tobacco plant, rotates to above the tobacco plant top collection device 200. The controller then controls... The first servo motor 21 opens the gripper of the first clamping mechanism, and the cut tobacco plant top falls into the tobacco plant top collection device 200. At the same time as the first clamping mechanism rotates, the spraying mechanism 4 rotates to the top of the tobacco plant and sprays the bud-suppressing agent onto the tobacco plant, thus completing the topping and bud-suppressing operations simultaneously. After the bud-suppressing agent is sprayed, the controller controls the second servo motor 31 to open the gripper of the second clamping mechanism 3, releasing the tobacco plant. At the same time, the controller controls the first motor to reverse, and the left and right cutting blades 52 open to facilitate the next topping and cutting operation. The second motor 10 reverses, and the first sleeve 101 drives the first clamping mechanism 2 and the spraying mechanism 4 to reset.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A device for topping and suppressing buds in flue-cured tobacco, characterized in that: The device includes a fixed rod (100) and a first sleeve (101) that are fixedly connected. Both the fixed rod (100) and the first sleeve (101) are hollow structures. A tobacco plant measuring device (1) is installed on the upper end of the fixed rod (100). The first sleeve (101) is connected to a first clamping mechanism (2) and a spraying mechanism (4) along the circumferential direction. The included angle between the first clamping mechanism (2) and the spraying mechanism (4) is 45-135°. The lower end of the first sleeve (101) is connected to a second sleeve (102). A second motor is installed inside the second sleeve (102) to drive the first sleeve (101) to rotate relative to the second sleeve (102). The rotation of the first sleeve (101) drives the spraying mechanism (4) to move above the tobacco plant cutting point. The side of the second sleeve (102) A second clamping mechanism (3) is fixedly connected, and a cutting blade assembly (5) is also provided between the first clamping mechanism (2) and the second clamping mechanism (3). The first clamping mechanism (2) and the second clamping mechanism (3) both include a servo motor, left and right grippers and a transmission mechanism. The servo motor controls the opening and closing of the left and right grippers through the transmission mechanism to achieve the clamping of the tobacco. The size of the left and right grippers of the first clamping mechanism (2) is smaller than that of the left and right grippers of the second clamping mechanism (3). The cutting blade assembly (5) includes a first motor, a transmission mechanism and left and right cutting blades. The first motor drives the left and right cutting blades to open and close through the transmission mechanism to achieve the cutting of the tobacco. The tobacco ranging device (1), the first motor, the second motor and the servo motors of the first clamping mechanism (2) and the second clamping mechanism (3) are all connected to the controller.

2. The tobacco topping and bud suppression device according to claim 1, characterized in that: The left and right grippers of the first gripping mechanism (2) and the second gripping mechanism (3) are arranged at different heights and are staggered, and the number of left and right grippers is not equal.

3. The tobacco topping and bud-suppressing device according to claim 2, characterized in that: The grippers on the same side of the first clamping mechanism (2) and the second clamping mechanism (3) are connected by a support rod (24) between adjacent layers.

4. The tobacco topping and bud-suppressing device according to claim 1 or 2, characterized in that: Trapezoidal teeth are provided on the inner surfaces of the left and right grippers of the first gripping mechanism (2) and the second gripping mechanism (3).

5. The tobacco topping and bud suppression device according to claim 1, characterized in that: A Y-shaped stop bar (33) is also provided below the second clamping mechanism (3), and the Y-shaped stop bar (33) is fixedly connected to the second sleeve (102).

6. The tobacco topping and bud suppression device according to claim 1, characterized in that: The left and right cutting blades of the cutting blade assembly (5) are in the shape of cross scissors.

7. The tobacco topping and bud-suppressing device according to claim 1, characterized in that: The tobacco plant ranging device (1) is a depth camera.

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