Flue-cured tobacco seedling raising alignment seed loading device

Abstract

The utility model discloses a flue-cured tobacco seedling alignment seed loading device which comprises a seed loading unit which comprises a bearing conveying table, a seed box erected on the bearing conveying table, a seeding shaft rotatably installed on the lower portion in the seed box, and a plurality of rows of seed grooves formed in the seeding shaft at intervals in the circumferential direction; the alignment unit comprises positioning pieces mounted on the bearing and conveying table at intervals, sensors mounted on the positioning pieces and the bearing and conveying table, and a controller electrically connected with the driving mechanism of the seeding shaft and the sensors respectively; by arranging the positioning piece and arranging the sensors on the positioning piece and the bearing conveying table, the position of the seedling raising plate can be limited, and the seeding shaft can be controlled to rotate at the preset speed after the seedling raising plate is sensed to reach the preset position, so that seeds in the seed groove can accurately fall into holes; the problem that the current seeding position is inaccurate is effectively solved, and in addition, the problem of seed waste is also completely eradicated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of seedling of flue-cured tobacco is aligned and is planted device, belong to seedling tray seeding technical field. BACKGROUND

[0002] In the field of agricultural production, especially flue-cured tobacco planting, seedling tray seeding is a common seedling method. Seedling tray seeding refers to accurately sowing seeds in each hole of the seedling tray, so that the seeds germinate and grow in the tray, forming uniform and robust seedlings, laying the foundation for subsequent transplanting and high-quality output of flue-cured tobacco. Traditional flue-cured tobacco seedling seeding methods are mostly manual or mechanical seeding. Manual seeding is not only inefficient, but also difficult to meet the needs of large-scale planting. Mechanical seeding mainly consists of a seed box, a seeding shaft, and seed slots on the seeding shaft. Although it improves seeding efficiency to some extent, it often cannot accurately align the seeds with the holes of the seedling tray, causing the seeds to fall outside the holes or multiple seeds to be squeezed into one hole. This not only wastes seeds, but also affects the growth space and nutrient absorption of the seedlings, thereby reducing seedling quality and planting benefits. It is necessary to improve it. SUMMARY

[0003] Based on the above, the utility model provides a kind of seedling of flue-cured tobacco is aligned and is planted device to overcome the deficiencies of prior art.

[0004] The technical solution of the utility model is: a kind of seedling of flue-cured tobacco is aligned and is planted device, comprising:

[0005] The seeding unit includes a load-bearing conveyor table, a seed box mounted on the load-bearing conveyor table, a seeding shaft rotatably installed in the lower part of the seed box, and multiple rows of seed slots spaced apart on the circumference of the seeding shaft.

[0006] The alignment unit includes positioning members spaced apart on the load-bearing conveyor table, sensors mounted on the positioning members and the load-bearing conveyor table, and controllers electrically connected to the drive mechanism of the seeding shaft and the sensors.

[0007] In one example, the seeding unit further includes a seed dropping sleeve, which is arranged at the lower part of the seed box, and the seed dropping sleeve is provided with seed dropping channels corresponding to the seed slots.

[0008] In one example, the seed box includes a seed storage cavity and a seed inlet cavity arranged at the lower part of the seed storage cavity. The middle part of the seed inlet cavity is in the shape of a circular cavity matching the seeding shaft. The upper part of the seed inlet cavity is connected to the seed storage cavity, and the lower part of the seed inlet cavity is connected to the seed dropping channels.

[0009] In one example, multiple positioning members are sequentially and spaced apart on the load-bearing conveyor table and form tray placement areas and transition areas. The positioning area is used for placing seedling trays, and the transition area is the area between adjacent two tray placement areas.

[0010] In one of the examples, the sensor comprises a proximity sensor, an optical fiber sensor or a photoelectric sensor.

[0011] In one of the examples, the proximity sensor is a magnetic proximity sensor, and a magnetic sensitive element of the magnetic proximity sensor is arranged on a side of the bearing conveying table, and a magnetic element is arranged on an outer side of the positioning member.

[0012] The utility model discloses the beneficial effects: when working, multiple seedling trays are placed between the positioning member on the bearing conveying table, and the bearing conveying table conveys to make the seedling tray move forward at a specific speed, when a seedling tray moves to the predetermined position in front of the sowing shaft, the sensor senses the seedling tray, and the driving mechanism drives the sowing shaft to start rotating at a predetermined speed, when the seedling tray rotates to below the sowing shaft, the seed in the seed groove falls into the first row of holes, along with the rotation of the sowing shaft and the movement of the bearing conveying table, the seed in the next row of seed grooves falls into the second row of holes. It can be seen that by arranging the positioning member and the sensor on the positioning member and the bearing conveying table, the position of the seedling tray can be limited, and the sowing shaft can be controlled to rotate at a predetermined speed after the sensor senses that the seedling tray reaches the predetermined position, so that the seed in the seed groove can fall into the hole accurately, and the problem of inaccurate sowing position is solved effectively, and the problem of seed waste is also eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the schematic diagram of the seedling tray of flue-cured tobacco seedling and the seed device of alignment;

[0014] Figure 2 It is the schematic diagram of the seed box from one perspective;

[0015] Figure 3 It is the schematic diagram of the seed box from another perspective;

[0016] Figure 4 It is the schematic diagram of the sowing shaft;

[0017] Figure 5 It is the schematic diagram of the seed setting cover;

[0018] BRIEF DESCRIPTION OF DRAWINGS:

[0019] Seed setting unit: 11 bearing conveying table, 12 seed box, 121 seed storage cavity, 122 seed feeding cavity, 13 sowing shaft, 14 seed groove, 15 driving mechanism, 16 seed setting cover, 161 seed falling channel;

[0020] Alignment unit: 21 positioning member, 22 magnetic element, 23 magnetic sensitive element. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, understandable and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific implementations disclosed below.

[0022] Please refer to Figures 1 to 5 The seedling device for growing tobacco seedlings comprises a seed loading unit and a positioning unit.

[0023] The seed loading unit comprises a bearing conveying table 11, a seed box 12 arranged on the bearing conveying table 11, a seeding shaft 13 rotatably arranged at the lower part of the seed box 12, a plurality of rows of seed grooves 14 arranged on the seeding shaft 13 in a circumferential direction, and a driving mechanism 15 connected with the seeding shaft 13. Each row of seed grooves 14 corresponds to a row of holes in the seedling tray. The bearing conveying table 11 is mainly used for bearing and conveying the seedling tray. The bearing conveying table 11 can be a flow line in the form of a belt or a plate chain. In the working state, the bearing conveying table 11 drives the seedling tray to continuously move forward. The seed box 12 is mainly used for storing seeds to be sown. When the driving mechanism 15 drives the seeding shaft 13 to rotate, the seeds enter the seed grooves 14 and are transferred to the lower part and fall onto the holes in the seedling tray to realize sowing. The driving mechanism 15 is a speed reducer.

[0024] The positioning unit comprises a plurality of positioning members 21 arranged on the bearing conveying table 11, a sensor arranged on the positioning members 21 and the bearing conveying table 11, and a controller electrically connected with the driving mechanism 15 of the seeding shaft 13 and the sensor. In the present embodiment, the plurality of positioning members 21 are arranged on the bearing conveying table 11 in sequence and form tray placing areas and transition areas. The positioning area is used for placing one seedling tray, and the transition area is the area between adjacent two tray placing areas. The sensor is a magnetic proximity sensor. The magnetic sensitive element 23 of the magnetic proximity sensor is arranged on the side surface of the bearing conveying table 11. The outer side of the positioning member 21 is provided with a magnetic member 22. When the positioning member 21 moves to the magnetic sensitive element 23, the magnetic sensitive element 23 detects the magnetic field signal and converts it into an electric signal.

[0025] By arranging the positioning member 21 and the sensor on the positioning member 21 and the bearing conveying table 11, the seeding shaft 13 can be controlled to rotate at a predetermined speed after the seedling tray reaches the predetermined position, so that the seeds in the seed grooves 14 can accurately fall into the holes.

[0026] In order to ensure the seed falling position, the seed loading unit further comprises a seed dropping sleeve 16, which is installed at the lower part of the seed box 12, and the seed dropping sleeve 16 is provided with seed dropping channels 161 corresponding to the seed grooves 14, so that when the seed grooves 14 are rotated to the lower part, the seeds can fall out of the seed dropping channels 161 into the holes. This structure can avoid the problem of seed shaking and displacement during falling.

[0027] In order to ensure accurate seeding, the seed box 12 comprises a seed storage cavity 121 and a seed feeding cavity 122 arranged at the lower part of the seed storage cavity 121. The middle part of the seed feeding cavity 122 is in a circular cavity shape matched with the seeding shaft 13, and the seeding shaft 13 can rotate in the cavity. The upper part of the seed feeding cavity 122 is connected with the seed storage cavity 121, and the lower part of the seed feeding cavity 122 is connected with the seed dropping channels 161. Through this structure, the number of seeds entering the seed grooves 14 can be limited.

[0028] The working principle of the above-mentioned flue-cured tobacco seedling alignment and seed loading device is as follows:

[0029] When working, a plurality of seedling trays are arranged at intervals between the positioning members 21 on the bearing conveying table 11, and the bearing conveying table 11 conveys the seedling trays to move forward at a certain speed. When a seedling tray moves to a predetermined position in front of the seeding shaft 13, the sensor senses the arrival of the seedling tray, and at this time the driving mechanism 15 drives the seeding shaft 13 to start rotating at a predetermined speed. When the seedling tray rotates to the lower part of the seeding shaft 13, the seeds in the seed grooves 14 fall into the first row of holes. With the rotation of the seeding shaft 13 and the movement of the bearing conveying table 11, the seeds in the next row of seed grooves 14 fall into the second row of holes. It can be seen that by arranging the positioning members 21 and the sensors on the positioning members 21 and the bearing conveying table 11, the position of the seedling tray can be limited, and the rotation speed of the seeding shaft 13 can be controlled after the sensor senses that the seedling tray reaches the predetermined position, so that the seeds in the seed grooves 14 can fall accurately into the holes, effectively solving the problem of inaccurate seeding position, and also eliminating the problem of seed waste.

[0030] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A seed-positioning device for flue-cured tobacco seedlings, characterized in that, include: The seed loading unit includes a carrying conveyor platform (11), a seed box (12) mounted on the carrying conveyor platform (11), a sowing shaft (13) rotatably installed in the lower part of the seed box (12), and multiple rows of seed troughs (14) spaced circumferentially on the sowing shaft (13). The alignment unit includes a positioning element (21) spaced apart on the carrier conveyor (11), a sensor mounted on the positioning element (21) and the carrier conveyor (11), and a controller electrically connected to the drive mechanism (15) of the seeding shaft (13) and the sensor, respectively.

2. The tobacco seedling positioning and loading device according to claim 1, characterized in that, The seed loading unit also includes a seed lowering sleeve (16), which is located at the lower part of the seed box (12) and has a seed dropping channel (161) corresponding to the seed trough (14) on the seed lowering sleeve (16).

3. The tobacco seedling positioning and loading device according to claim 2, characterized in that, The seed box (12) includes a seed storage chamber (121) and a seed inlet chamber (122) located at the lower part of the seed storage chamber (121). The middle part of the seed inlet chamber (122) is a circular cavity that matches the sowing shaft (13). The upper part of the seed inlet chamber (122) is connected to the seed storage chamber (121), and the lower part of the seed inlet chamber (122) is connected to the seed drop channel (161).

4. The tobacco seedling positioning and loading device according to claim 1, characterized in that, Multiple positioning elements (21) are sequentially and spaced apart on the carrier conveyor (11) to form a tray placement area and a transition area. The tray placement area is used to place seedling trays, and the transition area is the area between two adjacent tray placement areas.

5. The tobacco seedling positioning and loading device according to claim 1, characterized in that, The sensor includes a proximity sensor, a fiber optic sensor, or a photoelectric sensor.

6. The tobacco seedling positioning and loading device according to claim 5, characterized in that, The proximity sensor is a magnetic proximity sensor, and the magnetic sensitive element (23) of the magnetic proximity sensor is disposed on the side of the carrier conveyor (11), and the outer side of the positioning member (21) is provided with a magnetic element (22).

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