Tobacco seedling precision seed supplementing device

Abstract

The application discloses a tobacco seedling precision reseeding device and belongs to the technical field of agricultural machinery. The device comprises a main frame, a driving mechanism, a conveying belt, a control box, a reseeding component, a height adjusting component, a limiting block and a seedling tray. The driving mechanism controls the intermittent movement of the conveying belt through a servo motor and a synchronous pulley set, and the stepping precision reaches + / -0.5mm. The reseeding component comprises a reseeding gun and a seed conveying device, and the output port of the reseeding component is provided with a wear-resistant silica gel conical guide head, which can be self-adaptively attached to the edge of a seedling hole. The height adjusting component is composed of a lifting cylinder and an independent lifting group, supports global and zoned fine adjustment, and is suitable for a seedling tray with a depth of 5-8cm. The control box is integrated with a PLC controller, can preset parameters and can simultaneously adjust the reseeding frequency and height. The device is modularized and precisely controlled, solves the problems of low reseeding efficiency, poor precision and insufficient adaptability of traditional reseeding, realizes continuous and efficient reseeding of the seedling tray, and has a reseeding rate of less than 1%, is convenient to operate, has less seed waste and is suitable for large-scale production of tobacco seedlings.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically a precision replanting device suitable for tobacco seedling cultivation, which solves the problems of low efficiency and poor accuracy in traditional seedling replanting processes, and improves the uniformity and automation level of seedling cultivation. Background Technology

[0002] Tobacco seedling cultivation is a crucial step in tobacco planting. Traditional replanting mainly relies on manual labor, which presents the following problems:

[0003] Low efficiency: Manual replanting requires checking for missing seedlings in each cell, which is time-consuming and labor-intensive;

[0004] Poor precision: Manual sowing can easily lead to uneven seed distribution or missed sowing, affecting the quality of seedling cultivation;

[0005] Insufficient adaptability: Existing mechanical replanting equipment is difficult to adapt to different sizes of seedling trays, and the height adjustment is not precise, which can easily damage seedlings.

[0006] While some automated replanting devices exist in existing technologies, they are complex in structure, expensive, and lack precise design tailored to tobacco seedling trays. Therefore, there is an urgent need for a replanting device that can achieve high efficiency, high precision, and strong adaptability. Utility Model Content

[0007] This utility model addresses the problems existing in the prior art by providing a precision replanting device for tobacco seedlings.

[0008] include:

[0009] The main frame has a drive mechanism and a conveyor belt on its inner side. The drive mechanism is connected to the conveyor belt for controlling the movement of the conveyor belt.

[0010] The control box is fixed above the main frame, and a reseeding component is installed on its top. The reseeding component includes a reseeding gun and a seed delivery device.

[0011] The height adjustment component is located inside the main frame and below the conveyor belt, and is used to adjust the vertical height of the conveyor belt;

[0012] Limit blocks are installed at the connection between the control box and the main frame to fix the position of the control box;

[0013] The seedling trays, which are transported to the replanting station via conveyor belt, include an outer protective plate and independent seedling compartments arranged in a matrix.

[0014] Preferably, the replanting component includes:

[0015] The control unit contains an internal feed pipe and a power pump. The power pump is connected to the seed gun through the feed pipe to provide power for seed delivery.

[0016] The re-seeding gun consists of a connecting tube, a main grip, an adjustment knob, a re-seeding control handle, and an output port.

[0017] One end of the connecting pipe is connected to the feed pipe, and the other end extends into the main grip.

[0018] The adjustment knob is located on the top of the main grip and is used to adjust the air pressure inside the connecting tube;

[0019] The replanting control handle is located on the left side of the main grip and controls the release of seeds from the output port via a trigger signal.

[0020] Preferably, the height adjustment component includes:

[0021] The lower mounting plate is fixed to the bottom of the main unit frame;

[0022] The lifting cylinders are evenly distributed above the lower mounting plate, and their tops are connected to the upper mating plate.

[0023] An independent lifting unit, located on the surface of the upper mating plate, is used for fine-tuning the height of different areas of the conveyor belt;

[0024] The isolation plate, located between the upper mating plate and the conveyor belt, is used to buffer vibration.

[0025] Preferably, the independent seedling compartment of the seedling tray is a square deep compartment with a depth of 5-8cm, a single hole volume of 20-30ml, and a distance of 2-3cm between adjacent compartments.

[0026] Preferably, the drive mechanism includes a servo motor and a synchronous belt pulley set. The output shaft of the servo motor is connected to the drive wheel of the conveyor belt through the synchronous belt to realize the intermittent movement of the conveyor belt with a stepping accuracy of ±0.5mm.

[0027] Preferably, the control box integrates a PLC controller and a control knob, which can adjust the replanting output parameters according to the actual replanting operation.

[0028] Preferably, the PLC controller is electrically connected to the height adjustment component to adjust and control the lifting range of the height adjustment component.

[0029] Preferably, the output port of the replanting gun is provided with a tapered guide head with an inner diameter of 3-5mm and made of wear-resistant silicone, which can adaptively fit the edge of the seedling tray.

[0030] Preferably, the independent lifting assembly consists of a micro stepper motor and a lead screw, with a single lifting stroke of 0.1-2mm and an adjustment accuracy of ±0.05mm.

[0031] Preferably, the limiting block is an L-shaped metal buckle, which is fixed to the joint between the main frame and the control box by bolts, and has a load-bearing capacity of ≥50kg.

[0032] Compared with the prior art, this utility model provides a precision replanting device for tobacco seedlings, which has the following features:

[0033] Beneficial effects:

[0034] 1. This device can achieve efficient replanting. The intermittent movement of the conveyor belt is linked with the replanting gun to achieve continuous operation, increasing efficiency by more than 50%.

[0035] 2. The device employs high-precision positioning internally, with a servo motor and synchronous pulley assembly working together to achieve a stepping accuracy of ±0.5mm and a missed seeding rate of less than 1%.

[0036] 3. The device is highly adaptable during use, and the height adjustment component supports full-area and zoned fine-tuning, which can be adapted to various seedling trays with a depth of 5-8cm;

[0037] 4. The device is easy to operate in practice. The internal control box integrates knobs and a PLC interface, supports one-click parameter switching, and lowers the operating threshold. Attached Figure Description

[0038] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0039] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model;

[0040] Figure 2 This is a schematic diagram of the component structure of the replanting gun in a specific embodiment of this utility model;

[0041] Figure 3 This is a schematic diagram of the height adjustment component in a specific embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of the structure of the seedling tray in a specific embodiment of this utility model.

[0043] In the diagram: 1. Main frame; 2. Limit block; 3. Conveyor belt; 4. Drive mechanism; 5. Control box; 6. Replanting component; 7. Height adjustment component; 8. Seedling tray; 101. Connecting pipe; 102. Main handle; 103. Adjustment knob; 104. Replanting control handle; 105. Output port; 201. Lower mounting plate; 202. Lifting cylinder; 203. Upper mating plate; 204. Independent lifting assembly; 205. Isolation plate; 301. Outer protective plate; 302. Independent seedling chamber. Detailed Implementation

[0044] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0045] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0046] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0049] Example 1:

[0050] like Figure 1-4 As shown, the workflow of the replanter is as follows:

[0051] Initialization settings: Set the seedling tray specifications, such as a depth of 6cm and a spacing of 2.5cm, using the knob on control box 5. The PLC controller will automatically match the replanting parameters.

[0052] Seedling tray loading: Place the seedling tray 8 on the conveyor belt 3. The drive mechanism 4 drives the conveyor belt to step forward through the servo motor, and transports the seedling tray to the replanting station.

[0053] Height adjustment: The lifting cylinder 202 of the height adjustment component 7 pushes the upper mating plate 203 to adjust the height of the conveyor belt 3 to a suitable position; then the independent lifting group 204 makes fine adjustments to the local area to ensure that the seedling chamber 302 can fit tightly with the guide head during the subsequent replanting process of the seedling chamber 302 by the staff.

[0054] Precise reseeding: The operator holds the main handle 102 of the reseeding gun and triggers seed release through the reseeding control handle 104. The power pump delivers the seeds to the output port 105 through the connecting pipe 101, and the conical guide head guides the seeds to fall precisely into the target compartment.

[0055] Cyclic operation: After completing one row of replanting, the PLC controller instructs the 4-step conveyor belt mechanism to enter the next row of replanting, until all seedling trays are replanted.

[0056] Example 2:

[0057] To ensure the overall quality of actual replanting, staff need to conduct adaptability tests on the replanting gun. The specific operating steps are as follows:

[0058] In a seedling tray with a depth of 7cm, the internal air pressure of the connecting tube 101 is adjusted to 0.2MPa by adjusting knob 103, and the seed flow rate is stabilized at 10 seeds / second; the silicone guide head of the output port 105 is soft and fits tightly against the wall of the chamber, and the seed scattering rate is less than 0.5%.

[0059] Example 3:

[0060] The device has an emergency fault mechanism. When the height deviation of the seedling chamber in a certain area exceeds the set value, the micro stepper motor of the independent lifting group 204 drives the lead screw to adjust by 0.5mm at a time. The isolation plate 205 buffers the vibration and ensures that the replanting process is stable.

[0061] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0062] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0063] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A precision replanting device for tobacco seedlings, characterized in that, include: The main frame has a drive mechanism and a conveyor belt on its inner side. The drive mechanism is connected to the conveyor belt for controlling the movement of the conveyor belt. The control box is fixed above the main frame, and a reseeding component is installed on its top. The reseeding component includes a reseeding gun and a seed delivery device. The height adjustment component is located inside the main frame and below the conveyor belt, and is used to adjust the vertical height of the conveyor belt; Limit blocks are installed at the connection between the control box and the main frame to fix the position of the control box; The seedling trays, which are transported to the replanting station via conveyor belt, include an outer protective plate and a matrix of independent seedling compartments.

2. The replanter according to claim 1, characterized in that, The replanting component includes: The control unit contains an internal feed pipe and a power pump. The power pump is connected to the seed gun through the feed pipe to provide power for seed delivery. The re-seeding gun consists of a connecting tube, a main grip, an adjustment knob, a re-seeding control handle, and an output port. One end of the connecting pipe is connected to the feed pipe, and the other end extends into the main grip. The adjustment knob is located on the top of the main grip and is used to adjust the air pressure inside the connecting tube; The replanting control handle is located on the left side of the main grip and controls the release of seeds from the output port via a trigger signal.

3. The replanter according to claim 1, characterized in that, The height adjustment component includes: The lower mounting plate is fixed to the bottom of the main unit frame; The lifting cylinders are evenly distributed above the lower mounting plate, and their tops are connected to the upper mating plate. An independent lifting unit, located on the surface of the upper mating plate, is used for fine-tuning the height of different areas of the conveyor belt; The isolation plate, located between the upper mating plate and the conveyor belt, is used to buffer vibration.

4. The replanter according to claim 1, characterized in that, The seedling tray has a square, deep compartment with a depth of 5-8cm, a single hole volume of 20-30ml, and a spacing of 2-3cm between adjacent compartments.

5. The replanter according to claim 1, characterized in that, The drive mechanism includes a servo motor and a synchronous belt pulley set. The output shaft of the servo motor is connected to the drive wheel of the conveyor belt through the synchronous belt to realize the intermittent movement of the conveyor belt with a stepping accuracy of ±0.5mm.

6. The replanter according to claim 1, characterized in that, The control box integrates a PLC controller and control knobs, which can adjust the replanting output parameters according to the actual replanting operation.

7. The replanter according to claim 6, characterized in that, The PLC controller is electrically connected to the height adjustment component and adjusts and controls the lifting range of the height adjustment component.

8. The replanter according to claim 2, characterized in that, The output port of the replanting gun is equipped with a tapered guide head with an inner diameter of 3-5mm. The guide head is made of wear-resistant silicone and can adaptively fit the edge of the seedling tray.

9. The replanter according to claim 3, characterized in that, The independent lifting assembly consists of a micro stepper motor and a lead screw, with a single lifting stroke of 0.1-2mm and an adjustment accuracy of ±0.05mm.

10. The replanter according to claim 1, characterized in that, The limiting block is an L-shaped metal buckle, which is fixed to the joint between the main frame and the control box by bolts, and has a load-bearing capacity of ≥50kg.

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