A seeding device capable of being used for multiple particle sizes

Abstract

This application discloses a seeding device capable of handling seeds of various particle sizes, including a frame, a storage bin, a seed delivery pipe, a temporary storage pipe, and a discharge pipe. The frame includes a vertical frame, a top plate, a bottom plate, and a mounting plate. The seed delivery pipe includes a rotating circular plate and multiple discharge pipes. The mounting plate also has a first rotary drive mechanism for driving the rotating circular plate to rotate. A connecting frame is mounted on the bottom plate, and a rotating shaft and a drive motor are mounted on the connecting frame. The rotating shaft has a first baffle and a second baffle. The first baffle has multiple first through holes, and the second baffle has multiple second through holes. The top plate has a first discharge hole, and the bottom plate has a second discharge hole. The discharge pipe communicates with the second discharge hole. This seeding device can sow seeds of different particle sizes, such as corn and peas. It can also effectively prevent blockages during seed delivery and actively clear blockages when they occur.

Description

Technical Field

[0001] This invention relates to the field of agricultural seeding equipment technology, and more specifically, to a seeding device capable of being used for multiple particle sizes. Background Art

[0002] The seeding device is a core component of agricultural machinery specifically designed to sow seeds into the soil according to specific requirements. Using a seeding device instead of traditional manual sowing allows for rapid and continuous seeding, significantly shortening the sowing cycle and achieving efficient, precise, labor-saving, and high-yield modern planting.

[0003] Seeding devices can be used to automate seed sowing, but there are certain requirements for the seeds. Seeding devices can often achieve better sowing results for seeds with larger diameters and regular shapes, such as corn, soybeans, and peas, or for seeds that have undergone pelleting (by coating small, irregular, or fuzzy seeds with a seed coating agent and filler to make them into spheres of uniform size, smooth surface, and regular shape).

[0004] Existing seeding devices mainly include air-suction, air-blowing, finger-clamp, spoon-wheel, and grooved-wheel types, each with its own advantages and disadvantages. Air-suction and air-blowing devices offer fast seeding speeds but are complex in structure and expensive. Mechanical seeding devices such as finger-clamp, spoon-wheel, and grooved-wheel types have simple structures and low costs, but their seeding speeds are lower and they may damage seeds. Furthermore, existing seeding devices sometimes struggle to adapt to seeds of different sizes; they may be effective for one size but not for another. Additionally, clogging can occur during seeding, and once clogged, the device cannot clear itself, requiring manual intervention, sometimes necessitating disassembly and manual or air-blowing unblocking. Summary of the Invention

[0005] The present invention aims to overcome the shortcomings of the prior art and provide a seeding device that can be used for multiple particle sizes.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sowing device, comprising a frame, a storage box, a seed delivery pipe, a temporary storage pipe, and a discharge pipe; the frame includes a vertical frame, a top plate, a bottom plate, and a mounting plate, the mounting plate having mounting holes; the seed delivery pipe includes a rotating circular plate and multiple discharge pipes; the mounting plate also has a first rotary drive mechanism for driving the rotating circular plate to rotate; the top and bottom ends of the temporary storage pipe are open and fixedly connected to the bottom plate via an L-shaped frame; a connecting frame is installed on the bottom plate, and a rotating shaft and a drive motor for driving the rotating shaft are installed on the connecting frame; a first baffle is installed at the top end of the rotating shaft, and a second baffle is installed at the bottom end; the first baffle is located between the seed delivery pipe and the temporary storage pipe and has multiple first through holes; the second baffle is located between the temporary storage pipe and the bottom plate and has multiple second through holes; the top plate has a first discharge hole, and the bottom plate has a second discharge hole; the discharge pipe is fixedly connected to the bottom plate, located below the bottom plate, and communicates with the second discharge hole.

[0007] Furthermore, the temporary storage tube is a vertical tube.

[0008] Furthermore, the top plate is connected to the vertical frame, the bottom plate is connected to the vertical frame, and the mounting plate is connected to the vertical frame.

[0009] Furthermore, the first through hole is a round hole.

[0010] Furthermore, the second through hole is a round hole.

[0011] Furthermore, the multiple first through holes are distributed in a ring with equal spacing.

[0012] Furthermore, the multiple second through holes are distributed in a ring with equal spacing.

[0013] Furthermore, the multiple first through holes at the first baffle and the multiple second through holes at the second baffle are staggered.

[0014] Specifically, the vertical projections of the multiple first through holes at the first baffle and the multiple second through holes at the second baffle are alternately distributed.

[0015] More specifically, the vertical projection distance of each first through hole to the vertical projection distance of two adjacent second through holes is equal; the vertical projection distance of each second through hole to the vertical projection distance of two adjacent first through holes is equal.

[0016] Furthermore, the number of first through holes at the first baffle is equal to the number of second through holes at the second baffle; the first baffle and the second baffle can be in a first state and a second state. In the first state, the first baffle blocks the top of the temporary storage tube, and one of the second through holes of the second baffle is connected to the bottom of the temporary storage tube; in the second state, one of the first through holes of the first baffle is connected to the top of the temporary storage tube, and the second baffle blocks the bottom of the temporary storage tube.

[0017] Furthermore, both the number of the first through-hole and the number of the second through-hole are 4-8. The distance between adjacent through-holes can be adjusted by changing the number of through-holes, thereby adjusting the seed falling frequency. At the same rotation speed, a higher number of through-holes results in a higher seed falling frequency, while a lower number of through-holes results in a lower seed falling frequency.

[0018] Furthermore, the sidewall of the mounting hole has a first annular groove, the rotating plate has a first arc-shaped slider, a first gear ring is fixed to the rotating plate, a protruding plate is fixedly connected to the mounting plate, and the first rotation drive mechanism includes a first rotary motor and a first gear.

[0019] Furthermore, the first rotary motor is mounted on the protruding plate.

[0020] Furthermore, the first gear engages with the first gear ring.

[0021] Furthermore, the first arc-shaped slider engages with the first annular groove.

[0022] Furthermore, the rotating circular plate has multiple perforations, and each perforation corresponds to a multiple material drop tube. Each material drop tube passes through a perforation, and multiple first springs connect each material drop tube to the inner wall of the corresponding perforation. A first translation drive mechanism is installed on the protruding plate, and the first translation drive mechanism drives a first translation seat. A first vibration generating device is installed on the first translation seat.

[0023] Furthermore, the first vibration generating device can come into contact with the discharge pipe and cause the discharge pipe to vibrate.

[0024] This prevents seeds from clumping and clogging inside the feed pipe.

[0025] Furthermore, each feed tube and its corresponding perforation are connected by multiple first springs, which are divided into two coils, with the first springs in each coil distributed in a ring at equal intervals.

[0026] Furthermore, each feed tube and its corresponding perforation are connected by 6-8 first springs.

[0027] Furthermore, the material discharge pipe includes a main pipe, an inverted frustum-shaped pipe, an end pipe, and a frustum-shaped pipe; the end pipe has a side opening; an airflow generating unit is installed on the bottom plate, and the airflow generating unit is connected to the temporary storage pipe through a blower pipe; a rectangular frame is fixedly installed on the top plate, a second translation drive mechanism is installed on the rectangular frame, the second translation drive mechanism drives a second translation seat, a recovery pipe is fixed on the second translation seat, a second rotation drive mechanism is installed on the second translation seat, and the second rotation drive mechanism drives an arc-shaped baffle.

[0028] Furthermore, the main pipe includes a first cylindrical straight pipe connected to the inverted frustum-shaped pipe, a first bent pipe connected to the first straight pipe, a second cylindrical straight pipe connected to the first bent pipe, and a second bent pipe connecting the second straight pipe and the frustum-shaped pipe.

[0029] Furthermore, the first straight pipe is arranged vertically, and the angle between the axis of the first straight pipe and the axis of the second straight pipe is between 120 degrees and 160 degrees.

[0030] The inner diameter of the feeding tube is slightly larger than the diameter of the seeds, so the seeds are roughly arranged in a row within the feeding tube, following its shape. Furthermore, the seeds roll diagonally down the second straight tube as they fall, resulting in a relatively slow descent. The speed of seed descent can be adjusted by appropriately setting the angle of the second straight tube. Reducing the seed descent speed lowers the rotational speed and precision control requirements of the first baffle.

[0031] Furthermore, the inner diameters of the first straight pipe, the first bent pipe, the second straight pipe, and the second bent pipe are equal.

[0032] Furthermore, the temporary storage tube is a transparent tube, with a laser emitter installed on one side and a light receiver installed on the other side.

[0033] Therefore, by using the laser emitter and the light receiver, it can be determined whether the seeds have been properly deposited into the temporary storage tube.

[0034] Furthermore, the inverted frustoconical tube is connected to the top of the main tube.

[0035] Furthermore, the end tube is connected to the inverted frustoconical tube.

[0036] Furthermore, the frustoconical tube is connected to the bottom end of the main tube.

[0037] Furthermore, the feed end of the recycling pipe can face the side opening of the end pipe, and the discharge end can be located above the feeding port of the storage box.

[0038] Furthermore, the arc-shaped baffle can block the side opening of the end tube.

[0039] Furthermore, the storage bin includes a hopper, an annular cylindrical plate connected to the hopper, and a top cover fixedly connected to the annular cylindrical plate, the top cover having the feeding port.

[0040] Furthermore, a second gear ring is fixed to the top of the arc-shaped baffle, and a second annular groove is provided at the second gear ring. A second arc-shaped slider that cooperates with the second annular groove is provided at the recovery pipe. The second rotary drive mechanism includes a second rotary motor and a second gear that cooperates with the second gear ring. The airflow generating unit is connected to an air inlet pipe, which passes through the mounting plate and is fixedly connected to the mounting plate.

[0041] This allows for the strong airflow to sweep away the seeds inside the discharge pipe, thus blowing the seeds that are blocked inside the discharge pipe into the recycling pipe.

[0042] Furthermore, there is a first gap between the frustoconical tube and the first baffle, and a second gap between the end tube and the top plate.

[0043] Furthermore, the vertical height of the first gap and the vertical height of the second gap are equal.

[0044] This provides space in the vertical direction for the material drop pipe to vibrate.

[0045] Furthermore, the frame is also connected to a surrounding plate via a vertical plate, and the surrounding plate is connected to the storage bin via multiple second springs; a second vibration generating device is installed at the storage bin; a fixed pipe communicating with the first discharge hole is fixed at the top plate, and the discharge port of the storage bin is connected to the fixed pipe via a corrugated pipe.

[0046] Thus, the second vibration generator can cause the storage box to vibrate slightly, thereby preventing the seeds from clumping and clogging inside the storage box.

[0047] Furthermore, the number of the second spring is greater than or equal to four.

[0048] Furthermore, there are two or more vertical panels, and they are curved panels.

[0049] Furthermore, the first translation drive mechanism includes two end plates fixed to the protruding plate, a first translation motor mounted on one of the end plates, a first bearing mounted on the other end plate, a first lead screw connecting the first translation motor and the first bearing, and a first strip rail fixed to the protruding plate. The first translation seat has a first strip groove that mates with the first strip rail and a first threaded hole that mates with the first lead screw.

[0050] Furthermore, the second translation drive mechanism includes a second translation motor mounted on one end of the rectangular frame, a second bearing mounted on the other end of the rectangular frame, a second lead screw connecting the second translation motor and the second bearing, and a second strip rail fixed to the rectangular frame. The second translation seat has a second strip groove that mates with the second strip rail and a second threaded hole that mates with the second lead screw.

[0051] Furthermore, the connecting frame includes a lower plate fixedly connected to the base plate, a connecting plate connected to the lower plate, and an upper plate connected to the connecting plate. The rotating shaft is connected to the upper plate via a rotating shaft bearing. The drive motor is installed on the lower plate and is used to drive the rotating shaft to rotate.

[0052] Furthermore, the material discharge pipe has four sections, namely a first material discharge pipe, a second material discharge pipe, a third material discharge pipe, and a fourth material discharge pipe, with the inner diameter of the main pipe of the first material discharge pipe, the second material discharge pipe, the third material discharge pipe, and the fourth material discharge pipe decreasing sequentially.

[0053] Therefore, a suitable feeding pipe can be selected for sowing based on the seed size.

[0054] Furthermore, the outer diameter and inner diameter of the end tubes of the four material discharge tubes are equal.

[0055] Furthermore, the outer diameters of the tops of the inverted frustum-shaped tubes of the four feed tubes are equal.

[0056] Furthermore, the outer diameters of the bottom ends of the frustoconical tubes of the four feed tubes are equal.

[0057] Beneficial effects:

[0058] 1. The seeding device of this application can automatically seed seeds with regular shape and large particle size (such as corn, soybean, pea and pelleted seeds), and can select a suitable feeding pipe according to the different diameters of the seeds, so as to achieve seeding of seeds of different diameters.

[0059] 2. The seeding device of this application can effectively prevent blockage during seed transportation by slightly vibrating the feeding pipe and the storage box, and can effectively and actively clear the blockage when it occurs. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of the first state of the seeding device;

[0061] Figure 2 for Figure 1 Enlarged view of region A in the middle;

[0062] Figure 3 This is a schematic diagram of the second state of the seeding device;

[0063] Figure 4 for Figure 3 Enlarged view of region B in the middle;

[0064] Figure 5 for Figure 3 Enlarged view of region C;

[0065] Figure 6 This is a schematic diagram illustrating the backflushing and clearing of blockages in the feed pipe.

[0066] Figure 7 for Figure 6 Enlarged view of region D in the middle;

[0067] Figure 8 for Figure 6Enlarged view of region E in the middle;

[0068] Figure 9 A schematic diagram showing the preparation for replacing the feed tube;

[0069] Figure 10 for Figure 9 Enlarged view of the middle F region;

[0070] Figure 11 for Figure 9 Enlarged view of region G in the middle;

[0071] Figure 12 A first-view schematic diagram showing the separation of components of the seeding device;

[0072] Figure 13 for Figure 12 Enlarged view of region H in the middle;

[0073] Figure 14 for Figure 12 Enlarged view of region I;

[0074] Figure 15 for Figure 12 Enlarged view of the J region;

[0075] Figure 16 for Figure 12 Enlarged view of the K region;

[0076] Figure 17 for Figure 12 Enlarged view of the L-region;

[0077] Figure 18 A second-view schematic diagram showing the separation of components of the seeding device;

[0078] Figure 19 for Figure 18 Enlarged view of region M;

[0079] Figure 20 for Figure 18 Enlarged view of region N in the middle;

[0080] Figure 21 for Figure 18 Enlarged view of the O region;

[0081] Figure 22 for Figure 18 Enlarged view of region P in the middle.

[0082] Explanation of reference numerals in the attached drawings: Vertical frame 1.1; Top plate 1.2; Bottom plate 1.3; Mounting plate 1.4; Protruding plate 1.5; Vertical plate 1.6; Enclosing plate 1.7; Second spring 1.8; Fixing tube 1.9; Hopper 2.1; Circular cylindrical plate 2.2; Top cover 2.3; Feeding port 2.4; Second vibration generator 2.5; Corrugated pipe 2.6; Rotating circular plate 3; First gear ring 3.1; Perforation 3.2; Drop tube 4; First spring 4.1; Main pipe 4.2; First straight pipe 4.2.1; First bent pipe 4.2.2; Second straight pipe 4.2.3; Second bent pipe 4.2.4; Inverted frustum-shaped pipe 4.3; End pipe 4.4; Frustum-shaped pipe 4.5; Side opening 4.6; Temporary storage tube 5; L-shaped frame 5.1; Laser emitter 5.2; Light receiver 5.3; Connecting frame 6; Rotating shaft 6.1; Drive motor 6 .2; First baffle 6.3; First through hole 6.3.1; Second baffle 6.4; Second through hole 6.4.1; Lower plate 6.5; Connecting plate 6.6; Upper plate 6.7; Rotating shaft bearing 6.8; Discharge pipe 7; First rotary motor 8.1; First gear 8.2; First translation seat 8.3; First vibration generating device 8.4; End plate 8.5; First translation motor 8.6; First lead screw 8.7; First strip slide rail 8.8; Airflow generating unit 9; Blowing pipe 9.1; Air inlet pipe 9.2; Rectangular frame 10; Second translation seat 10.1; Arc baffle 10.2; Second gear ring 10.3; Second annular slide groove 10.4; Second rotary motor 10.5; Second gear 10.6; Second lead screw 10.7; Second strip slide rail 10.8; Recovery pipe 11; Second arc-shaped slider 11.1. Detailed Implementation

[0083] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0084] This invention provides a seeding device capable of handling multiple particle sizes, as shown in the figure, comprising a frame, a storage bin, a seed delivery pipe, a temporary storage pipe 5, and a discharge pipe 7. The frame includes a vertical frame 1.1, a top plate 1.2 connected to the vertical frame 1.1, a bottom plate 1.3 connected to the vertical frame 1.1, and a mounting plate 1.4 connected to the vertical frame 1.1. The mounting plate 1.4 has mounting holes. The seed delivery pipe includes a rotating circular plate 3 and multiple discharge pipes 4. The mounting plate 1.4 also has a first rotary drive mechanism for driving the rotating circular plate 3 to rotate. The top and bottom ends of the temporary storage pipe 5 are open and fixedly connected to the bottom plate 1.3 via an L-shaped frame 5.1. A connecting frame 6 is installed on the bottom plate 1.3. The connecting frame 6 is equipped with a rotating shaft 6.1 and a drive motor 6.2 for driving the rotating shaft 6.1. A first baffle 6.3 is installed at the top of the rotating shaft 6.1, and a second baffle 6.4 is installed at the bottom. The first baffle 6.3 is located between the seed delivery tube and the temporary storage tube 5 and has multiple first through holes 6.3.1 arranged in a ring with equal spacing. The second baffle 6.4 is located between the temporary storage tube 5 and the bottom plate 1.3 and has multiple second through holes 6.4.1 arranged in a ring with equal spacing. The top plate 1.2 has a first discharge hole, and the bottom plate 1.3 has a second discharge hole. The discharge pipe 7 is fixedly connected to the bottom plate 1.3, located below the bottom plate 1.3, and communicates with the second discharge hole. The temporary storage tube 5 is a vertical pipe. The sidewall of the mounting hole has a first annular groove, the rotating plate 3 has a first arc-shaped slider, a first gear ring 3.1 is fixed to the rotating plate 3, and a protruding plate 1.5 is fixedly connected to the mounting plate 1.4. The first rotary drive mechanism includes a first rotary motor 8.1 mounted on the protruding plate 1.5 and a first gear 8.2 that meshes with the first gear ring 3.1. The rotating plate 3 has multiple through holes 3.2, which correspond one-to-one with multiple drop tubes 4. Each drop tube 4 passes through a through hole 3.2, and multiple first springs 4.1 are connected between each drop tube 4 and the inner sidewall of the corresponding through hole 3.2. A first translation drive mechanism is mounted on the protruding plate 1.5, which drives a first translation seat 8.3. A first vibration generating device 8.4 is mounted on the first translation seat 8.3, which can abut against the drop tube 4 and cause the drop tube 4 to vibrate. Each feed tube 4 and its corresponding through hole 3.2 is connected by multiple first springs 4.1. The multiple first springs are divided into two circles, and the first springs in each circle are distributed in a ring at equal intervals. Each feed tube 4 and its corresponding through hole 3.2 is connected by 6-8 first springs 4.1.The discharge pipe 4 includes a main pipe 4.2, an inverted frustum-shaped pipe 4.3 connected to the top of the main pipe 4.2, an end pipe 4.4 connected to the inverted frustum-shaped pipe 4.3, and a frustum-shaped pipe 4.5 connected to the bottom of the main pipe 4.2; the main pipe 4.2 includes a cylindrical first straight pipe 4.2.1 connected to the inverted frustum-shaped pipe 4.3, a first bent pipe 4.2.2 connected to the first straight pipe 4.2.1, a cylindrical second straight pipe 4.2.3 connected to the first bent pipe 4.2.2, and a second bent pipe 4.2.4 connecting the second straight pipe 4.2.3 and the frustum-shaped pipe 4.5; the first straight pipe 4.2.1 is vertically arranged, and the angle between the axis of the first straight pipe 4.2.1 and the axis of the second straight pipe 4.2.3 is between 120 degrees and 160 degrees; the end pipe 4.4 has a side opening 4.6; An airflow generating unit 9 is installed at the base plate 1.3, and the airflow generating unit 9 is connected to the temporary storage tube 5 through a blower pipe 9.1; a rectangular frame 10 is fixedly installed at the top plate 1.2, and a second translation drive mechanism is installed at the rectangular frame 10. The second translation drive mechanism drives a second translation seat 10.1, and a recovery tube 11 is fixed at the second translation seat 10.1. The feeding end of the recovery tube 11 can face the side opening 4.6 of the end tube, and the discharging end can be located above the feeding port 2.4 of the storage box. A second rotation drive mechanism is installed at the second translation seat 10.1, and the second rotation drive mechanism drives an arc-shaped baffle 10.2 that can block the side opening 4.6 of the end tube; the temporary storage tube 5 is a transparent tube, and a laser emitter 5.2 is installed on one side of the temporary storage tube 5, and a light receiver 5.3 is installed on the other side.

[0085] The storage bin includes a hopper 2.1, a cylindrical annular plate 2.2 connected to the hopper 2.1, and a top cover 2.3 fixedly connected to the cylindrical annular plate. The top cover 2.3 has the feeding port 2.4. A second gear ring 10.3 is fixed to the top of the arc-shaped baffle 10.2. The second gear ring 10.3 has a second annular groove 10.4. The recovery pipe 11 has a second arc-shaped slider 11.1 that cooperates with the second annular groove. The second rotary drive mechanism includes a second rotary motor 10.5 and a second gear 10.6 that cooperates with the second gear ring 10.3. The airflow generating unit 9 is connected to an air inlet pipe 9.2, which passes through the mounting plate 1.4 and is fixedly connected to the mounting plate 1.4. The frame is also connected to a surrounding plate 1.7 via a vertical plate 1.6. The surrounding plate 1.7 is connected to a storage bin via multiple second springs 1.8. A second vibration generating device 2.5 is installed at the storage bin. A fixed pipe 1.9 communicating with the first discharge hole is fixed at the top plate 1.2. The discharge port of the storage bin is connected to the fixed pipe 1.9 via a corrugated pipe 2.6. The first translation drive mechanism includes two end plates 8.5 fixed to the protruding plate 1.5, a first translation motor 8.6 installed on one end plate, a first bearing installed on the other end plate, a first lead screw 8.7 connecting the first translation motor 8.6 and the first bearing, and a first strip slide rail 8.8 fixed to the protruding plate 1.5. The first translation seat 8.3 has a first strip groove that mates with the first strip slide rail 8.8 and a first threaded hole that mates with the first lead screw 8.7. The second translation drive mechanism includes a second translation motor mounted on one end of the rectangular frame 10, a second bearing mounted on the other end of the rectangular frame, a second lead screw 10.7 connecting the second translation motor and the second bearing, and a second strip rail 10.8 fixed to the rectangular frame. The second translation seat 10.1 has a second strip groove that mates with the second strip rail 10.8 and a second threaded hole that mates with the second lead screw 10.7. The connecting frame 6 includes a lower plate 6.5 fixedly connected to the base plate 1.3, a connecting plate 6.6 connected to the lower plate 6.5, and an upper plate 6.7 connected to the connecting plate 6.6. The rotating shaft 6.1 is connected to the upper plate 6.7 via a rotating shaft bearing 6.8. The drive motor 6.2 is mounted on the lower plate 6.5 and is used to drive the rotating shaft 6.1 to rotate. The material discharge pipe 4 has four sections: a first discharge pipe, a second discharge pipe, a third discharge pipe, and a fourth discharge pipe. The inner diameter of the main pipe 4.2 of the first discharge pipe, the second discharge pipe, the third discharge pipe, and the fourth discharge pipe decreases sequentially. The outer diameter and inner diameter of the end pipes 4.4 of the four discharge pipes 4 are equal. The outer diameter of the top end of the inverted frustum-shaped pipe 4.3 of the four discharge pipes 4 is equal. The outer diameter of the bottom end of the frustum-shaped pipe 4.5 of the four discharge pipes 4 is equal.In this embodiment, both the first through hole and the second through hole are circular holes. There are eight first through holes at the first baffle, arranged in a ring with equal spacing. Similarly, there are eight second through holes at the second baffle, also arranged in a ring with equal spacing. The multiple first through holes at the first baffle and the multiple second through holes at the second baffle are staggered. Specifically, the vertical projections of the multiple first through holes at the first baffle and the multiple second through holes at the second baffle are alternately distributed. The vertical projection distance from each first through hole to the vertical projection distance from each adjacent second through hole is equal; the vertical projection distance from each second through hole to the vertical projection distance from each adjacent first through hole is also equal. The first baffle and the second baffle can be in a first state (i.e.,...). Figure 1 The state shown) and the second state (i.e. Figure 3 (As shown in the diagram) In the first state, the first baffle blocks the top of the temporary storage tube, and one of the second through holes of the second baffle is connected to the bottom of the temporary storage tube; In the second state, one of the first through holes of the first baffle is connected to the top of the temporary storage tube, and the second baffle blocks the bottom of the temporary storage tube.

[0086] Working Principle: In this application's seeding device, seeds can be fed into the storage bin through the feeding port. Different inner diameter feeding pipes can be selected by rotating a circular plate. This ensures the selected feeding pipe is positioned below the first feeding hole, at which point the seeds in the storage bin will fall into the selected feeding pipe. The inner diameter of the feeding pipe ensures that the seeds are distributed in approximately a row along the shape of the pipe (the inner diameter of the feeding pipe is slightly larger than the diameter of the seeds). However, if... Figure 1 As shown, due to the obstruction of the first baffle, the seeds at the bottom of the feed pipe come into contact with the first baffle. During sowing, the rotating shaft drives the first and second baffles to rotate synchronously, and as the rotating shaft rotates, it transforms into... Figure 3 As shown, at this time, the seeds fall into the temporary storage tube through the first through hole (by controlling the rotation speed of the rotating shaft, the seeds fall into the temporary storage tube). Figure 1 and Figure 3 The state changes continuously as the rotating shaft rotates; when a seed falls into the temporary storage tube, it quickly switches to [a new state]. Figure 1 (in the current state), and due to the obstruction of the second baffle, the seed is temporarily stored in the temporary storage tube. Then the first and second baffles change... Figure 1 As shown in the diagram, the seeds in the feeding pipe are blocked by the first baffle, and the seeds in the temporary storage pipe fall into the discharge pipe through the second through hole and the second feeding hole, eventually landing in the soil. As the rotating shaft rotates, the seeding device... Figure 1 and Figure 3The system switches between states, allowing each seed to first fall into the temporary storage tube and then be discharged from the discharge tube. The inner diameter of the discharge tube is slightly larger than the diameter of the seed, so the seeds are roughly arranged in a row along the shape of the discharge tube. Furthermore, the seeds roll diagonally down the second straight tube during descent, resulting in a relatively slow descent. The descent speed can be adjusted by appropriately setting the angle of the second straight tube. Reducing the descent speed lowers the rotational speed and precision control requirements of the first baffle. During sowing, the first vibration generator causes a small vibration in the currently used discharge tube, and the second vibration generator causes a small vibration in the storage box, preventing seed clumping and blockage in the discharge tube and storage box. Each seed falling into the temporary storage tube is detected by a laser emitter and a light receiver, allowing the system to determine if the seed is falling normally into the temporary storage tube. If seeds become blocked in the discharge tube and cannot fall normally into the temporary storage tube, this can be detected promptly by the light receiver signal. Specifically, in this application, since the seeds currently on the market, such as corn, soybeans, peas and pelleted seeds, generally have good uniformity, and conventional seed selection processes such as color sorting and size sieving are carried out before sowing, most seeds are relatively uniform in size. Therefore, the seeds can be roughly distributed in a row in the feeding tube along the shape of the feeding tube. Occasionally, seeds with large differences in size may appear at the same height. In the actual sowing process, 1-2 seeds may fall into the temporary storage tube, but this will not have a significant impact on sowing.

[0087] When seed blockage is detected in the feed pipe, it can be done as follows: Figure 6 In the indicated state, the second rotary drive mechanism drives the arc-shaped baffle to rotate, so that the side opening of the end tube faces the feed end of the recovery tube, and the bottom end of the temporary storage tube is blocked by the second baffle. At this time, a strong airflow is generated by the airflow generating unit, which, under the action of the strong airflow, can sweep the seeds in the discharge tube. Since there are a lot of seeds in the box at this time, the airflow will flow along the recovery tube, so that the seeds in the discharge tube can be blown into the recovery tube along with the airflow, and finally fall into the storage box. In addition, a small amount of airflow can also be diverted through the first discharge hole, thereby agitating the seeds in the storage box and further preventing seed blockage. Then, the sowing device is restored to the position. Figure 1 , 3The sowing process continues in the switched state. The design of the recovery pipe is necessary because when seeds become clogged in the main pipe, seeds are also present in the corrugated pipe above the main pipe and in the hopper, effectively blocking the space above the main pipe. If seeds were directly blown back into the hopper through the corrugated pipe by airflow from the main pipe, a large airflow would be required to create a space, significantly impacting the seeds in the hopper. However, with the recovery pipe, the clogged seeds return to the hopper without overcoming significant resistance, making recovery much more convenient.

[0088] When the selected discharge tube needs to be adjusted, the first and second translation drive mechanisms can be moved backward to create space, and the rotating disc can be rotated to move the required discharge tube above the temporary storage tube, and then returned to its original position. Figure 1 The state shown is used for sowing seeds.

[0089] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention without departing from the scope defined by the claims.

Claims

1. A seeding device capable of being used for multiple particle sizes, characterized in that, The system includes a frame, a storage bin, a seed delivery pipe, a temporary storage pipe, and a discharge pipe. The frame includes a vertical frame, a top plate connected to the vertical frame, a bottom plate connected to the vertical frame, and a mounting plate connected to the vertical frame. The mounting plate has mounting holes. The seed delivery pipe includes a rotating circular plate and multiple discharge pipes. The mounting plate also has a first rotary drive mechanism for driving the rotating circular plate. The top and bottom of the temporary storage pipe are open and fixedly connected to the bottom plate via an L-shaped frame. A connecting frame is installed on the bottom plate, and a rotating shaft is installed on the connecting frame. A drive motor is used to drive the rotating shaft. The rotating shaft has a first baffle mounted at its top and a second baffle mounted at its bottom. The first baffle is located between the seed delivery tube and the temporary storage tube and has multiple first through holes arranged in a ring with equal spacing. The second baffle is located between the temporary storage tube and the bottom plate and has multiple second through holes arranged in a ring with equal spacing. The top plate has a first discharge hole, and the bottom plate has a second discharge hole. The discharge pipe is fixedly connected to the bottom plate, located below the bottom plate, and communicates with the second discharge hole. The sidewall of the mounting hole has a first circular... The annular slide groove includes a rotating circular plate with a first arc-shaped slider. A first gear ring is fixed to the rotating circular plate, and a protruding plate is fixedly connected to the mounting plate. A first rotary drive mechanism includes a first rotary motor mounted on the protruding plate and a first gear cooperating with the first gear ring. The rotating circular plate has multiple through holes, each corresponding to a multiple material drop tube. Each material drop tube passes through one through hole, and multiple first springs connect each material drop tube to the inner wall of the corresponding through hole. A first translation drive mechanism is mounted on the protruding plate. The first translation drive mechanism drives a first translation seat, and a first vibration generating device is installed at the first translation seat, which can abut against the discharge pipe and cause the discharge pipe to vibrate; the discharge pipe includes a main pipe, an inverted frustum-shaped pipe connected to the top of the main pipe, an end pipe connected to the inverted frustum-shaped pipe, and a frustum-shaped pipe connected to the bottom of the main pipe; the main pipe includes a cylindrical first straight pipe connected to the inverted frustum-shaped pipe, a first bent pipe connected to the first straight pipe, a cylindrical second straight pipe connected to the first bent pipe, and a second bent pipe connecting the second straight pipe and the frustum-shaped pipe; The first straight tube is arranged vertically, and the angle between the axis of the first straight tube and the axis of the second straight tube is between 120 degrees and 160 degrees; the end tube has a side opening; an airflow generating unit is installed on the bottom plate, and the airflow generating unit is connected to the temporary storage tube through a blower; a rectangular frame is fixedly installed on the top plate, and a second translation drive mechanism is installed on the rectangular frame. The second translation drive mechanism drives a second translation seat, and a recovery tube is fixed on the second translation seat. The inlet end of the recovery tube can face the side opening of the end tube, and the outlet end can be located above the feeding port of the storage box. A second rotation drive mechanism is installed on the second translation seat, and the second rotation drive mechanism drives an arc-shaped baffle that can block the side opening of the end tube; the temporary storage tube is a transparent tube, and a laser emitter is installed on one side of the temporary storage tube and a light receiver is installed on the other side; the vertical projections of multiple first through holes on the first baffle and the vertical projections of multiple second through holes on the second baffle are alternately distributed.

2. The seeding device capable of being used for multiple particle sizes according to claim 1, characterized in that, The top of the arc-shaped baffle is fixed with a second toothed ring, and the second toothed ring has a second annular groove. The recovery pipe has a second arc-shaped slider that cooperates with the second annular groove. The second rotary drive mechanism includes a second rotary motor and a second gear that cooperates with the second toothed ring. The airflow generating unit is connected to an air inlet pipe, which passes through the mounting plate and is fixedly connected to the mounting plate.

3. The seeding device capable of being used for multiple particle sizes according to claim 1, characterized in that, The frame is also connected to a surrounding plate via a vertical plate, and the surrounding plate is connected to the storage bin via multiple second springs; a second vibration generating device is installed at the storage bin; a fixed pipe communicating with the first discharge hole is fixed at the top plate, and the discharge port of the storage bin is connected to the fixed pipe via a corrugated pipe.

4. The seeding device according to claim 1, capable of being used for multiple particle sizes, is characterized in that, The first translation drive mechanism includes two end plates fixed to the protruding plate, a first translation motor mounted on one of the end plates, a first bearing mounted on the other end plate, a first lead screw connecting the first translation motor and the first bearing, and a first strip slide rail fixed to the protruding plate. The first translation seat has a first strip groove that mates with the first strip slide rail and a first threaded hole that mates with the first lead screw.

5. The seeding device capable of being used for multiple particle sizes according to claim 1, characterized in that, The second translation drive mechanism includes a second translation motor mounted on one end of a rectangular frame, a second bearing mounted on the other end of the rectangular frame, a second lead screw connecting the second translation motor and the second bearing, and a second strip rail fixed to the rectangular frame. The second translation seat has a second strip groove that mates with the second strip rail and a second threaded hole that mates with the second lead screw.

6. The seeding device according to claim 1, capable of being used for multiple particle sizes, is characterized in that, The connecting frame includes a lower plate fixedly connected to the base plate, a connecting plate connected to the lower plate, and an upper plate connected to the connecting plate. The rotating shaft is connected to the upper plate via a rotating shaft bearing. The drive motor is installed on the lower plate and is used to drive the rotating shaft to rotate.

7. The seeding device capable of being used for multiple particle sizes according to claim 1, characterized in that, The material discharge pipe has four sections: a first discharge pipe, a second discharge pipe, a third discharge pipe, and a fourth discharge pipe. The inner diameter of the main pipe of the first discharge pipe, the second discharge pipe, the third discharge pipe, and the fourth discharge pipe decreases sequentially. The outer diameter and inner diameter of the end pipes of the four discharge pipes are equal. The outer diameter of the top of the inverted frustum-shaped pipe of the four discharge pipes is equal. The outer diameter of the bottom of the frustum-shaped pipe of the four discharge pipes is equal.

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