Vacuum adsorption type seedling tray seeding machine

Abstract

This utility model discloses a vacuum adsorption type seedling tray seeder, including a frame, a pressing roller, a sowing roller, and a seed bin. The pressing roller is equipped with pressing teeth, and the sowing roller is hollow under negative pressure. The sowing roller has several seed adsorption nozzles, and its shaft is a hollow rotating shaft. One end of the hollow rotating shaft connecting to the transmission component is closed, and the other end is connected to a vacuum pump. An opening is provided in the middle of the hollow rotating shaft. The seed bin is located behind the sowing roller, and a seed bin baffle is located at the bottom of the seed bin. A soft seed-dispensing baffle is provided at the front end of the seed bin baffle. This utility model device can easily adsorb any point of irregularly shaped crop seeds, with a seed adsorption rate approaching 100%. Seeds will not fall during movement, significantly improving sowing quality. It also retains the roller structure, resulting in fast sowing speed, simple structure, and low cost. A substrate cleaning device is also installed at the front of the frame to clean the substrate.

Description

Technical Field

[0001] This utility model relates to the technical field of floating seedling tray seeding machines, and in particular to a vacuum adsorption type seeding tray seeding machine. Background Technology

[0002] In the cultivation of crops such as tobacco, flowers, and vegetables, seeders are used to sow seeds into seedling trays. Existing seedling tray seeders use seed-receiving holes on the seeding rollers, but regardless of improvements, problems such as seed falling and getting stuck persist. After sowing, the soil around the seeds is uneven, requiring manual covering, as seen in the device with patent number CN206547299U. Another type of vacuum adsorption seeding equipment, while offering high precision, requires switching between adsorption and seed-dropping stations, resulting in low efficiency, complex structure, and high cost, as seen in the device with patent number CN202510021852.7. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the existing technology and improve upon it by providing a vacuum adsorption seedling tray planter, which greatly improves the efficiency and quality of sowing.

[0004] This utility model is achieved through the following technical solution: a vacuum adsorption type seedling tray seeder, including a frame, a pressing roller, a sowing roller and a seed bin. The pressing roller is provided with pressing teeth. The sowing roller is hollow inside and is provided with a number of seed adsorption nozzles. The shaft of the sowing roller is a hollow rotating shaft. One end of the hollow rotating shaft connected to the transmission component is a closed end, and the other end is connected to a vacuum pump. A through hole is provided in the middle of the hollow rotating shaft. The seed bin is located behind the sowing roller. There is a seed bin baffle at the bottom of the seed bin. A soft seed-dispensing baffle is provided at the front end of the seed bin baffle.

[0005] Preferably, the hollow rotating shaft is connected to the vacuum pump gas pipe via a universal rotary joint.

[0006] Preferably, the soft seed-dispensing baffle is a sponge, soft silicone, or a brush.

[0007] Preferably, the seed adsorption nozzle is cone-shaped and extends above the sowing roller.

[0008] Preferably, the seed adsorption nozzle is slightly higher than the sowing roller.

[0009] Preferably, the soft seed-dispensing baffle faces the inclined surface of the seed suction nozzle and is 2.3mm-3.0mm away from the seeding roller.

[0010] Preferably, a blower is provided above the seeding roller.

[0011] Preferably, the blowing device includes a plurality of air outlets, which are disposed on a ventilation duct and the ventilation duct is connected to a fan.

[0012] Preferably, the air outlet is located above the seed adsorption nozzle.

[0013] Preferably, a seed covering device is installed at the rear of the frame to level the substrate soil and cover the seeds.

[0014] Preferably, the seed covering device includes a silicone rubber sheet and a lifting device, with the silicone rubber sheet in contact with a floating plate below, and the lifting device for adjusting the height of the silicone rubber sheet is mounted on the frame.

[0015] Compared with the prior art, the present invention has the following advantages: 1. It can easily pick up any point of irregular crop seeds, with a seed pick-up rate of nearly 100%, and the seeds will not fall off during movement, greatly improving the sowing quality.

[0016] 2. It retains the roller structure, which allows for fast sowing speed and has a simple and low-cost structure.

[0017] 3. A substrate cleaning device is installed on the frame in front of the cavitation roller to clean the substrate and improve the quality of stable cavitation.

[0018] 4. The substrate cleaning device adopts a movable brush structure, which is installed on an automatic reciprocating telescopic electric push-pull rod to clean back and forth, making the cleaning more thorough. Alternatively, an industrial circular conveyor belt with brushes can be used to clean in the same direction, which can be distinguished from the operator's working direction and facilitates collection and cleaning. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a top view of the structure of this utility model.

[0021] Figure 2 This is a side view of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of the seeding roller of this utility model.

[0023] Figure 4 This is a schematic diagram of the seed bin baffle structure of this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of the blower device of this utility model.

[0025] Figure 6 This is a top view schematic diagram of the present invention with a substrate cleaning device.

[0026] Figure 7 This is a side view of the present invention with the substrate cleaning device added.

[0027] In the diagram: 1-Frame, 2-Pressing roller, 3-Sowing roller, 4-Seed bin, 5-Pressing teeth, 6-Seed suction nozzle, 7-Seed bin baffle, 8-Transmission components, 9-Hollow rotating shaft, 10-Vacuum pump, 11-Through opening, 12-Universal swivel joint, 13-Vacuum pump air pipe, 14-Soft seed-dispensing baffle, 15-Fan, 16-Air outlet, 17-Ventilation duct, 18-Substrate cleaning device. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0029] This utility model discloses a vacuum adsorption type seedling tray seeder, comprising a frame 1, a pressing roller 2 rotatably mounted on the front end of the frame 1 and having several pressing teeth 5 thereon, a sowing roller 3 rotatably mounted on the rear end of the frame 1, a seed bin 4 mounted on the frame 1 and located at the rear end of the support 1, a seed bin baffle 7 provided between the rear side of the seed bin 4 and the sowing roller 3, and a transmission component 8 that drives the sowing roller 3 and the pressing roller 2. The above is a conventional configuration. Figure 1-3 As shown, in this utility model, the sowing roller 3 is set with an internal hollow negative pressure. The sowing roller 3 is provided with several seed adsorption nozzles 6. The shaft of the sowing roller 3 is a hollow rotating shaft 9. The shaft should be tightly fitted with the sowing roller 3 to prevent air leakage. One end of the hollow rotating shaft 9 connected to the transmission component 8 is a closed end, and the other end is connected to the vacuum pump 10. An opening is provided in the middle of the hollow rotating shaft 9. The seed chamber 4 is located behind the sowing roller 3. The seed chamber 4 has a seed chamber baffle 7 at the bottom. A soft seed-dispensing baffle 14 is provided at the front end of the seed chamber baffle 7.

[0030] During operation, the vacuum pump 10 is adjusted to a suitable pressure according to the seed type, and a negative pressure is formed inside the sowing roller 3. When the seed suction nozzle 6 passes through the seed bin 4, each seed suction nozzle 6 will pick up a seed. When it moves to the seed bin baffle 7, the soft seed-dispensing baffle 14 at the front end of the seed bin baffle 7 will dispense the seed into the hole pressed out by the pressing roller 2, thus realizing sowing.

[0031] Furthermore, the hollow rotating shaft 9 functions as a hollow air tube, which can be connected to the vacuum pump 10 via the universal rotary joint 12. A hole is opened in the middle of the hollow rotating shaft 9 to achieve vacuuming inside the sowing roller 3. The other closed end can be plugged with a plug screw. The seed suction nozzle 6 is connected to the inside of the sowing roller 3, i.e., there is suction. By adjusting the suction of the vacuum pump, various types of seeds, including tobacco seeds, can be sucked up, such as irregular chili seeds.

[0032] Furthermore, the hollow rotating shaft 9 has a through hole 11 in the middle.

[0033] Furthermore, the soft seed-dispensing baffle 14 is fixed to the front end of the seed bin baffle 7 and is made of sponge, soft silicone or a brush. Example 2

[0034] Based on Example 1, such as Figure 3 , 4 As shown in Figure 5, the seed adsorption nozzle 6 is cone-shaped and slightly higher than the sowing roller 3. This ensures that there are no gaps between the seeds and the sowing roller 3, allowing for a more secure adsorption and improving sowing quality. Preferably, the seed adsorption nozzle 6 is 3mm higher than the sowing roller.

[0035] The soft seed-dispensing baffle 14 faces the inclined surface of the seed suction nozzle 6, or is flush with the opening of the seed suction nozzle 6. At this time, there is a distance of 2.3mm-3.0mm between it and the seeding roller 3. The soft seeding structure can just dispense the seeds without damaging them. The inclined surface of the suction nozzle 6 can pass through the soft material smoothly without getting stuck. At the same time, the seeds in the seed chamber 4 cannot fall out. Example 3

[0036] Based on Example 1 or 2, such as Figure 5 As shown, a blowing device is also provided above the sowing roller 3. Some seeds are relatively light and several seeds may stick together. By setting up the blowing device, the excess seeds can be blown back into the seed bin.

[0037] A preferred embodiment is that the blowing device includes several air outlets 16, which are disposed on a ventilation duct 17 connected to a fan 15. Furthermore, one air outlet 16 is disposed above each row of seed adsorption nozzles 6. Example 4

[0038] Based on Example 1, 2, or 3, such as Figure 6-7 As shown, a matrix cleaning device 18 is installed on the front crossbeam of the frame 1 or between the two side frames by bolts or welding. The matrix cleaning device 18 is a fixed brush structure.

[0039] Furthermore, the substrate cleaning device 18 is a movable brush structure, including two options: one is to install the brush structure on an automatic reciprocating telescopic electric push-pull rod to clean back and forth, making the cleaning more thorough; the other is to use an industrial circular conveyor belt brush belt to perform cyclic cleaning in the same direction. The advantage is that the substrate is cleaned in a fixed direction, which can be distinguished from the operator's working direction and is convenient for collection and cleaning.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum adsorption type seed tray seeder, comprising a frame (1), a pressing roller (2), a sowing roller (3), and a seed bin (4), wherein the pressing roller (2) is provided with pressing teeth (5), characterized in that, The inside of the seeding roller (3) is hollow. The seeding roller (3) is provided with several seed adsorption nozzles (6). The shaft of the seeding roller (3) is a hollow rotating shaft (9). One end of the hollow rotating shaft (9) connected to the transmission component (8) is a closed end, and the other end is connected to the vacuum pump (10). A through hole (11) is provided in the middle of the hollow rotating shaft (9). The seed bin (4) is located behind the seeding roller (3). The seed bin (4) has a seed bin baffle (7) at the bottom. A soft seed-dispensing baffle (14) is provided at the front end of the seed bin baffle (7).

2. The vacuum adsorption type seedling tray seeder according to claim 1, characterized in that, The hollow rotating shaft (9) is connected to the vacuum pump pipe (13) via a universal rotary joint (12).

3. The vacuum adsorption type seedling tray seeder according to claim 1, characterized in that, The soft seed-dispensing baffle (14) is made of sponge, soft silicone or a brush.

4. The vacuum adsorption type seedling tray seeder according to claim 1, characterized in that, The seed adsorption nozzle (6) is cone-shaped and extends above the seeding roller (3).

5. The vacuum adsorption type seedling tray seeder according to claim 4, characterized in that, The seed adsorption nozzle (6) is 3 mm higher than the seeding roller (3).

6. A vacuum adsorption type seedling tray planter according to claim 5, characterized in that, The soft seed-dispensing baffle (14) faces the inclined surface of the seed suction nozzle (6) and is 2.3mm-3.0mm away from the seeding roller (3).

7. The vacuum adsorption type seedling tray seeder according to claim 1, characterized in that, A blower is installed above the seeding roller (3).

8. A vacuum adsorption type seedling tray seeder according to claim 7, characterized in that, The blowing device includes several air outlets (16), which are set on the ventilation duct (17) and connected to the fan (15). The air outlets (16) are located above the seed adsorption nozzle (6).

9. A vacuum adsorption type seedling tray seeder according to claim 1, characterized in that, A matrix cleaning device (18) is installed on the frame (1) in front of the pressing roller (2). The matrix cleaning device (18) is a fixed brush structure.

10. A vacuum adsorption type seedling tray seeder according to claim 1, characterized in that, A matrix cleaning device (18) is installed on the frame (1) in front of the pressure roller (2). The matrix cleaning device (18) is a movable brush structure. The brush structure is installed on an automatic reciprocating telescopic electric push-pull rod to perform left and right back and forth cleaning, or an industrial circular conveyor belt brush belt is used to perform cyclic cleaning in the same direction.

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