Flue-cured tobacco seedling substrate filling device

Abstract

The utility model discloses a flue-cured tobacco seedling substrate filling device which comprises a bearing and conveying table, a feeding device and a conveying device. The matrix box is erected on the bearing conveying table, and a plurality of blanking channels are arranged at the bottom of the matrix box; the rotating shaft is rotatably installed in the substrate box, the lower portion of the rotating shaft is located in the material falling channel, and at least the part, located in the material falling channel, of the rotating shaft is provided with a spiral piece; the driving source is used for providing power, and the driving source can drive the rotating shaft to rotate; when the rotating shaft rotates, the spiral sheet synchronously rotates in the blanking channel, so that a substrate in the substrate box can be accurately and quantitatively guided out from the blanking channel, the filling amount of the substrate in each seedling raising hole is ensured to be consistent, and the substrate cannot be scattered on other positions of the seedling raising tray body, and when the rotating shaft does not rotate, the spiral sheet is static, so that the substrate can be prevented from falling off from the blanking channel. And the subsequent cleaning action is reduced.

Description

Technical Field

[0001] This utility model relates to a tobacco seedling substrate filling device, belonging to the field of floating seedling substrate loading. Background Technology

[0002] Floating seedling raising of flue-cured tobacco refers to a method of tobacco seedling raising in a greenhouse or plastic shed, which uses pre-formed polystyrene trays (seedling trays) as carriers, fills them with artificially prepared substrate, sows tobacco seeds in the substrate on the seedling trays, and then floats the seedling trays in a seedling pool containing nutrients to complete the seed germination, growth and seedling formation process.

[0003] Regarding the filling of seedling substrate, existing literature (publication number: CN210580220U) discloses a seedling substrate filling device, which includes a frame, a cylinder and two parallel guide rails on the frame, several sliders on the guide rails, a tray on each slider, and a drain hole on the tray. The cylinder rod is connected to the tray. A geared motor and a stirring shaft are mounted on the tray. The geared motor is connected to the stirring shaft via a coupling, and the stirring shaft has several stirring wheels. This device solves the defects of traditional manual filling of seedling substrate, such as low efficiency, time-consuming and labor-intensive processes, and increased workload for tobacco farmers. However, current substrate filling schemes still have the following problems: the substrate is scattered on the seedling tray during feeding, and the substrate quality in each seedling hole cannot be accurately controlled. Utility Model Content

[0004] Based on the above, this utility model provides a tobacco seedling substrate filling device to overcome the shortcomings of the prior art.

[0005] The technical solution of this utility model is: a tobacco seedling substrate filling device, comprising:

[0006] A conveyor platform for transporting seedling trays;

[0007] A substrate box is mounted on the conveyor platform, and the bottom of the substrate box is provided with multiple material drop channels;

[0008] A rotating shaft is rotatably installed inside the substrate box, and the lower part of the rotating shaft is located inside the material discharge channel;

[0009] Spiral blades are installed on at least a segment of the rotating shaft located within the material discharge channel;

[0010] A drive source is used to provide power, which can drive the rotation of the rotating shaft.

[0011] In one example, the conveyor platform is a belt conveyor, plate chain conveyor, mesh belt conveyor, or chain conveyor.

[0012] In one example, the carrier conveyor is supported on the two side frames, and the matrix box is suspended on top of the support.

[0013] In one example, the substrate box includes a base, a material box mounted on the base, and multiple material discharge channels are provided on the base. The material box is a box-shaped structure that is larger at the top and smaller at the bottom.

[0014] In one example, the substrate box is provided with a mounting base, and the upper parts of the plurality of rotating shafts are mounted on the mounting base via bearing seats.

[0015] In one example, the mounting base is mounted on the substrate box via a support column.

[0016] In one example, the drive source is a motor, and the motor is connected to the rotating shaft and to multiple rotating shafts via a transmission belt.

[0017] The beneficial effects of this utility model are as follows: By setting multiple material discharge channels in the substrate box and installing multiple rotating shafts and spiral blades accordingly, the spiral blades rotate synchronously in the material discharge channels when the rotating shafts rotate, so that the substrate in the substrate box can be accurately and quantitatively discharged from the material discharge channels, ensuring that the amount of substrate filling in each seedling hole is consistent and will not spill onto the other parts of the seedling tray. When the rotating shafts are not rotating, the spiral blades remain stationary, which can prevent the substrate from falling from the material discharge channels and reduce subsequent cleaning operations. Attached Figure Description

[0018] Figure 1 A schematic diagram of a substrate filling device for flue-cured tobacco seedlings;

[0019] Figure 2 Front view of the tobacco seedling substrate filling device;

[0020] Figure 3 This is a schematic diagram of the substrate box and rotating shaft at an angle.

[0021] Figure 4 This is a schematic diagram of the substrate box and rotating shaft from another angle.

[0022] Figure 5 This is a schematic diagram of the rotating shaft and mounting base.

[0023] Figure 6 This is a schematic diagram of the substrate box;

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Conveyor platform, 11. Support frame, 2. Substrate box, 21. Drop channel, 22. Base, 23. Material box, 3. Rotating shaft, 4. Spiral blade, 5. Drive source, 6. Transmission belt, 7. Support column, 8. Mounting base, 9. Bearing seat. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] Please see Figures 1 to 6 This embodiment provides a tobacco seedling substrate filling device, which includes a carrying conveyor 1, a substrate box 2, a rotating shaft 3, and a drive source 5.

[0028] The carrier conveyor 1 is used to transport seedling trays. After the seedling trays are placed on the carrier conveyor 1, the carrier conveyor 1 can drive them to move forward continuously. In this embodiment, the carrier conveyor 1 can be a belt conveyor. In other embodiments, the carrier conveyor 1 can also be a plate chain conveyor, mesh belt conveyor, or chain conveyor, etc.

[0029] Supports 11 are installed on both sides of the conveyor platform 1, and the substrate box 2 is suspended above the conveyor platform 1 via the supports 11. The substrate box 2 includes a base 22, a material box 23 installed on the base 22, and multiple material channels 21 are opened on the base 22. The material channels 21 should correspond one-to-one with the substrate holes on the seedling tray, or at least all the material channels 21 should correspond one-to-one with some of the substrate holes on the seedling tray, so as to accurately fill the substrate into the substrate holes.

[0030] A mounting base 8 is installed on the substrate box 2 by multiple support columns 7. The upper parts of multiple rotating shafts 3 are mounted on the mounting base 8 by bearing seats 9. The lower parts of the multiple rotating shafts 3 correspond one to one and are located in the corresponding material discharge channel 21. At least the rotating shaft 3 located in the material discharge channel 21 is equipped with a spiral blade 4. When the rotating shaft 3 rotates, it can drive the spiral blade 4 to rotate in the material discharge channel 21, so that the substrate in the substrate box 2 can be discharged from the material discharge channel 21. When the rotating shaft 3 does not rotate, the spiral blade 4 is stationary, which can prevent the substrate from falling from the material discharge channel 21.

[0031] The drive source 5 is a motor, which is fixed on the mounting base 8 to provide power. The motor and the rotating shaft 3, as well as multiple rotating shafts 3, are driven by a transmission belt 6, so that one motor can synchronously drive the rotation of multiple rotating shafts 3. It should be noted that when a row of adjacent rotating shafts 3 are driven by the transmission belt 6, in order to ensure that the substrate can be discharged when the spiral blades 4 rotate, the spiral blades 4 on adjacent rotating shafts 3 should be installed in opposite directions.

[0032] The working principle of the above-mentioned flue-cured tobacco seedling substrate filling device is as follows:

[0033] The seedling tray is placed on the carrier conveyor 1, which moves it forward continuously. When the seedling tray reaches the filling position below the substrate box 2, it stops, so that the material discharge channel 21 corresponds one-to-one with the seedling holes on the seedling tray (the position can be ensured by installing sensors, etc.). Then, the motor drives the rotating shaft 3 to rotate a predetermined number of times, so that the spiral plate 4 discharges the substrate in the substrate box 2 through the material discharge channel 21 into the seedling holes. The specific number of rotations can be determined according to the actual filling volume. If the number of rotating shafts 3 is the same as the number of seedling holes on the seedling tray, the carrier conveyor 1 moves the seedling tray forward to flow out after filling, and the next seedling tray enters the filling position again. If the number of rotating shafts 3 corresponds to some of the rows of seedling holes on the seedling tray, the carrier conveyor 1 moves the seedling tray a certain distance and fills it again. By setting multiple material discharge channels 21 in the substrate box 2 and installing multiple rotating shafts 3 and spiral blades 4 accordingly, when the rotating shaft 3 rotates, the spiral blades 4 rotate synchronously in the material discharge channels 21, so that the substrate in the substrate box 2 can be accurately and quantitatively discharged from the material discharge channels 21, ensuring that the substrate filling amount in each seedling hole is consistent and will not spill onto the other parts of the seedling tray. When the rotating shaft 3 does not rotate, the spiral blades 4 remain stationary, which can prevent the substrate from falling from the material discharge channels 21 and reduce subsequent cleaning operations.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A tobacco seedling substrate filling device, characterized in that, include: A conveyor platform (1) is used to transport seedling trays; The substrate box (2) is mounted on the carrier conveyor (1), and the bottom of the substrate box (2) is provided with multiple material drop channels (21). The rotating shaft (3) is rotatably installed inside the substrate box (2), and the lower part of the rotating shaft (3) is located inside the material drop channel (21); Spiral blades (4) are installed on at least a segment of the rotating shaft (3) located within the discharge channel (21). A drive source (5) is used to provide power, and the drive source (5) can drive the rotation of the rotating shaft (3).

2. The tobacco seedling substrate filling device according to claim 1, characterized in that, The carrier conveyor (1) is a belt conveyor, plate chain conveyor, mesh belt conveyor or chain conveyor.

3. The tobacco seedling substrate filling device according to claim 1, characterized in that, The conveyor platform (1) is equipped with supports (11) on both sides of the frame, and the substrate box (2) is suspended on the top of the supports (11).

4. The tobacco seedling substrate filling device according to claim 1, characterized in that, The substrate box (2) includes a base (22) and a material box (23) installed on the base (22). Multiple material drop channels (21) are opened on the base (22). The material box (23) is a box-shaped box with a larger top and a smaller bottom.

5. The tobacco seedling substrate filling device according to claim 1, characterized in that, The substrate box (2) is provided with a mounting base (8), and the upper parts of the plurality of rotating shafts (3) are mounted on the mounting base (8) through bearing seats (9).

6. The tobacco seedling substrate filling device according to claim 5, characterized in that, The mounting base (8) is mounted on the substrate box (2) via a support column (7).

7. The tobacco seedling substrate filling device according to claim 1, characterized in that, The drive source (5) is a motor, and the motor and the rotating shaft (3) and the multiple rotating shafts (3) are transmitted through a transmission belt (6).

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