Top clamp corn film laying and cutting precision seeder

Abstract

The invention discloses a top-clamp corn film-laying and film-breaking precision seeder, and relates to the technical field of seeders; it includes a frame, on which a fertilizing mechanism, a drip irrigation belt laying mechanism, a film-laying mechanism, a sowing mechanism and a soil covering mechanism are installed; the sowing mechanism is composed of a mounting bracket, a seed box and a hole sower, the two sides of the hole sower are respectively a main plate and a seed feeding plate, an outer seed ring and an inner seed ring are encapsulated between the main plate and the seed feeding plate, and a pre-storage groove, a seed taking unit, an outer plate, an inner plate, a fixed plate and a seed taking scraper are installed inside, a plurality of seed taking nests are provided on the outer plate, a seed taking unit is correspondingly arranged below each seed taking nest, a pre-storage groove is arranged below each seed taking unit, and the seed taking unit is blocked between the seed taking nest and the pre-storage groove, and the seeds are controlled to fall from the seed taking nest into the pre-storage groove by opening and closing itself. The invention has the function of precision sowing, ensures that only one seed is discharged at a time, avoids the situation of empty holes, double plants or even multiple plants, and ensures that the grain distance of each sowing is consistent.

Description

Technical Field

[0001] The invention relates to the technical field of seeders, in particular to a top-clamping corn film-laying and -breaking precision seeder. Background Art

[0002] Precision seeding can achieve uniform distribution of corn plants in the field, so that each corn plant can obtain sufficient light, water and nutrients, which is beneficial to the growth and development of the plants and improves the uniformity and robustness of the corn. In addition, the distribution of corn plants with precision seeding is regular, and the row and plant spacing are uniform, which is very suitable for mechanized farming, fertilization, spraying and other field management operations, improving work efficiency and quality and reducing labor intensity and labor costs.

[0003] The existing corn planter is generally towed by a tractor with three-point suspension. The whole machine structure is mainly composed of a driving device, a fertilizing mechanism, a drip irrigation belt laying mechanism, a film laying mechanism, a sowing mechanism and a soil covering mechanism (some planters do not include all of the above functions). As the seeding machine group moves forward, it drives the seed drill in the sowing mechanism to rotate, and the seeds in the seed drill are taken out by the internal seed taking device and finally fall into the closed duckbill. When the duckbill rotates to the bottom, it will cut off the ground film and insert into the soil. It opens due to the contact pressure between the duckbill of the seed drill and the ground, forming a hole after opening, and then the seeds in the duckbill are put into the hole.

[0004] The key and difficulty of precision corn seeding lies in accurately controlling the number of corn grains and the seeding distance during seeding. It is required to avoid empty holes, double plants or even multiple plants as much as possible, and at the same time improve the qualified rate of corn grain distance. The existing finger-clamp seeders sometimes have problems such as missed seeds, multiple seeds and stuck seeds. Therefore, this application wants to design a seeder that can achieve precision control at the moment of film breaking sowing. Summary of the invention

[0005] The purpose of the present invention is to solve the problems raised in the background technology, and to propose a top-clamping corn film-laying and -breaking precision seeder.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The top-clamp corn film-laying and film-breaking precision seeder comprises: a frame, on which a fertilizing mechanism, a drip irrigation belt laying mechanism, a film-laying mechanism, a sowing mechanism and a soil covering mechanism are sequentially installed from left to right;

[0008] The sowing mechanism is provided in plurality, each of which is composed of a mounting bracket, a seed box and a seed drill, the mounting bracket is fixedly connected to the seed box and the seed drill, and the mounting bracket is fixedly mounted on the frame by a U-shaped clip, and the seed box is connected to the seed drill through a seed inlet pipe;

[0009] The two sides of the hole sower are respectively provided with a main plate and a seed feeding plate, an outer seed ring and an inner seed ring are encapsulated between the main plate and the seed feeding plate, and a pre-storage groove, a seed taking unit, an outer plate, an inner plate, a fixed plate and a seed taking scraper are installed inside the inner seed ring, and a plurality of seed taking holes are provided on the outer plate;

[0010] Along the axial direction of the outer disk, the side from the outer disk to the seed inlet disk is the upper side of the outer disk, and the side from the outer disk to the main disk is the lower side of the outer disk. A seed taking unit is correspondingly arranged under each seed taking hole, and a pre-storage groove is arranged under each seed taking unit. The seed taking unit is blocked between the seed taking hole and the pre-storage groove, and controls the seeds to fall from the seed taking hole into the pre-storage groove by opening and closing itself.

[0011] The seed taking unit includes an opening and closing rod, a linkage rod, a pulling rod and a roller. Two opening and closing rods and two linkage rods are provided. The two opening and closing rods are located below the seed taking nest, blocked between the seed taking nest and the pre-storage slot, and the two opening and closing rods are rotatably connected through a rotating shaft. The two opening and closing rods are respectively rotatably installed with the linkage rods at positions close to the rotating shaft, and the ends of the two linkage rods are rotatably connected with the pulling rod. The pulling rod is Y-shaped, a spring is mounted on the pulling rod, and a roller is fixedly installed at the end of the pulling rod.

[0012] As a further solution of the present invention: a central axis is installed at the center of the main disk and the seed feeding disk, the seed feeding disk is fixedly mounted on the central axis, the main disk is rotationally mounted on the central axis, and at the same time, the outer edge of the seed feeding disk is rotated to mount a pressure plate, and the pressure plate and the main disk are connected by bolts and the outer seed ring is encapsulated and fixed;

[0013] A plurality of duck bills are arranged along the circumferential direction on the outer side of the outer seed ring, and the duck bills include fixed duck bills and movable duck bills. An inner seed ring is coaxially installed on the inner side of the outer seed ring, and a plurality of seed inlets are arranged on the inner seed ring corresponding to the duck bill positions, and a seed box is fixedly installed between each seed inlet and the corresponding duck bill.

[0014] As a further solution of the present invention: pre-storage grooves are installed on the inner side of the inner seed ring, the pre-storage grooves are distributed in a vortex shape, the direction of each pre-storage groove is set according to the rolling direction of the seed drill, and one end of the pre-storage groove is an open end and the other end is a closed end, the open end of the pre-storage groove is fixedly connected to the seed inlet on the inner seed ring, and the side of the pre-storage groove close to the outer disk is in contact with the outer disk and is fixedly connected to the outer disk;

[0015] The outer disk has a plurality of seed taking holes at positions corresponding to the closed ends of the pre-storage grooves for connecting to the pre-storage grooves. The seed taking holes corresponding to each seed inlet position are called theoretical seed taking holes of the seed inlet. In the rolling direction of the hole seeder, the seed taking holes located above the theoretical seed taking holes are called pre-storage seed taking holes of the seed inlet. The open end of the pre-storage groove is connected to the seed inlet, and the closed end of the pre-storage groove is connected to the pre-storage seed taking holes of the seed inlet.

[0016] As a further solution of the present invention: the fixed plate is fixedly mounted on the central axis, the inner plate is rotatably mounted outside the fixed plate, the outer plate is rotatably mounted outside the inner plate, an adjustment block is provided on the outer edge of the fixed plate, and the adjustment block cooperates with the seed taking unit.

[0017] As a further solution of the present invention: a groove is provided at the top of the closed end of the pre-storage tank for installing a seed taking unit, the rotating shaft is fixed in the groove, and the roller is in contact with the adjusting block.

[0018] As a further solution of the present invention: one end of the seed scraper is fixedly mounted on the central axis, and the other end extends to the seed removal nest and fits the surface of the outer disk.

[0019] As a further solution of the present invention: the number of the seed nests on the outer plate is consistent with the number and distribution position of the duck bills, and the surface of the outer plate is lower than the surface of the inner plate;

[0020] The number of the pre-storage tanks and the seed taking units is also consistent with the number of the duck bills, and the distribution positions of the seed taking units correspond to the distribution positions of the duck bills.

[0021] As a further solution of the present invention: the cross-sectional size of the connection between the pre-storage tank and the seed inlet matches the size of the seed inlet.

[0022] As a further solution of the present invention: the fertilization mechanism includes a fertilization box and a fertilization wheel, the fertilization box is fixedly mounted on the frame, a plurality of fertilization wheels are provided, and all are fixedly mounted on the frame through U-shaped clips, a fertilization pipe is installed at the bottom of the fertilization box, and the outlet of the fertilization pipe is fixed on the fertilization wheel;

[0023] The drip irrigation tape laying mechanism is provided in plurality, and all are fixedly mounted on the frame by U-shaped clips;

[0024] The film laying mechanism includes a film rolling roller, a guide roller, a pressure wheel and a soil covering wheel. The film rolling roller is rotatably mounted on a frame and used for winding the ground film. Two guide rollers are provided and are rotatably mounted on the frame respectively. Two pressure wheels are provided and are fixedly mounted on the frame by U-shaped clips. Two soil covering wheels are also provided and are fixedly mounted on the frame.

[0025] Rowing rods are rotatably mounted on the left and right sides of the frame.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] 1. It has the functions of synchronous film laying and film-breaking precision sowing. After the film laying mechanism has laid the ground film, the duckbill of the sowing mechanism will pierce the ground film and make holes in the soil. Then the duckbill opens and the seeds in the duckbill are put into the holes. At the same time, the internal seed taking unit opens and the seed taking scraper will scrape across the surface of the seed taking nest at this time to ensure that only one seed falls into the seed taking nest at a time and enters the pre-storage groove to avoid empty holes, double plants or even multiple plants.

[0028] 2. Whenever the outer duckbill sows seeds, a seed inside will enter the pre-storage groove for the next duckbill sowing to avoid missing seeds. In addition, the direction of the pre-storage groove and the moving duckbill is consistent with the rolling direction of the seed drill, which is conducive to the seeds falling into the next duckbill smoothly during the rolling process of the seed drill, and making the landing point consistent, which ensures that the seed distance is the same each time sowing, and avoids the problem of seed jamming.

[0029] 3. The seed taking unit of the present application controls the seeds to fall into the pre-storage slot by opening and closing itself, and the opening and closing process of the seed taking unit is always synchronized with the duckbill membrane breaking and duckbill opening and closing process through the mechanical structure, without any delay, so the sowing grain distance can be accurately controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a front view structural schematic diagram of the present invention;

[0032] Figure 3 It is a three-dimensional structural schematic diagram of the film laying mechanism of the present invention;

[0033] Figure 4 It is a three-dimensional structural schematic diagram of the seeding mechanism of the present invention;

[0034] Figure 5 An exploded view of the hole seeding device of the present invention;

[0035] Figure 6 It is a schematic diagram of the assembly structure of the hole seeding device of the present invention;

[0036] Figure 7 This is a schematic diagram of the three-dimensional structure of the hole seeder of the present invention after the seed feeding tray is removed;

[0037] Figure 8 This is a front view of the structure of the hole sower of the present invention after the seeding tray is removed;

[0038] Fig. 9 This is a schematic diagram of the three-dimensional structure of the hole seeding device of the present invention after the seed inlet disk and the outer disk are removed;

[0039] Fig.10 This is a schematic diagram of the three-dimensional structure of the hole sower of the present invention after the seed inlet plate, outer plate and inner plate are removed;

[0040] Fig.11 This is a schematic diagram of the installation structure of the seed taking unit of the present invention;

[0041] Fig.12 It is a schematic diagram of the structure of the outer disk of the present invention;

[0042] Fig.13 It is a schematic diagram of the structure of the outer seed ring and the inner seed ring of the present invention;

[0043] Fig.14 It is a structural schematic diagram of the fixed plate of the present invention;

[0044] Fig.15 for Figure 8 The enlarged schematic diagram of point A in the middle;

[0045] Fig.16 for Fig. 9 The enlarged schematic diagram of point B in the middle;

[0046] Fig.17 for Fig.10 Enlarged schematic diagram of point C in the middle.

[0047] In the figure: 100, frame; 110, U-shaped clamp; 120, rowing rod; 200, fertilization mechanism; 210, fertilization box; 211, fertilization pipe; 220, fertilization wheel; 300, drip irrigation belt laying mechanism; 400, film laying mechanism; 410, film rolling roller; 420, guide roller; 430, edge pressing wheel; 440, soil covering wheel; 500, sowing mechanism; 510, mounting bracket; 520, seed box; 530, hole sowing device; 531, main plate; 532, outer seed ring; 5321, duckbill; 5322, fixed duckbill; 5323, movable duckbill; 533, inner seed ring; 53 31. Seed inlet; 5332. Seed box; 534. Pre-storage slot; 5341. Groove; 535. Seed taking unit; 5351. Opening and closing rod; 5352. Linking rod; 5353. Pulling rod; 5354. Spring; 5355. Roller; 5356. Rotating shaft; 536. Outer plate; 5361. Seed taking nest; 537. Inner plate; 538. Fixed plate; 5381. Adjusting block; 539. Seed scraper; 540. Seed feeding plate; 541. Seed feeding tube; 542. Pressing plate; 550. Central axis; 600. Soil covering mechanism; 610. Soil covering roller; 620. Soil covering side wheel. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Reference Figure 1 - Fig.17 The top-clamp corn film-laying and film-breaking precision seeder comprises a frame 100, on which a fertilizing mechanism 200, a drip irrigation tape laying mechanism 300, a film-laying mechanism 400, a sowing mechanism 500 and a soil covering mechanism 600 are sequentially installed from left to right, wherein the fertilizing mechanism 200, the drip irrigation tape laying mechanism 300, the film-laying mechanism 400, the sowing mechanism 500 and the soil covering mechanism 600 can be provided in multiple groups, such as Figure 1 As shown, two groups of fertilizing mechanisms 200, four groups of drip irrigation belt laying mechanisms 300, two groups of film laying mechanisms 400, four groups of sowing mechanisms 500 and two groups of soil covering mechanisms 600 are installed on the frame 100;

[0050] A set of fertilization mechanism 200 includes a fertilization box 210 and two fertilization wheels 220. The fertilization box 210 is fixedly installed on the frame 100. The fertilization wheels 220 are fixedly installed on the frame 100 through U-shaped clamps 110. A fertilization pipe 211 is installed at the bottom of the fertilization box 210, and the outlet of the fertilization pipe 211 is fixed on the fertilization wheel 220. In addition, a trenching wheel is installed on the frame 100 for trenching. The trenching wheel can be installed before the fertilization wheel 220 or after the fertilization wheel 220.

[0051] The position of the fertilizing wheel 220 can be adjusted by the U-shaped clamp 110, and the drip irrigation belt laying mechanism 300 and the sowing mechanism 500 are also fixedly installed on the frame 100 by the U-shaped clamp 110. Before use, the positions of the fertilizing wheel 220, the drip irrigation belt laying mechanism 300, and the sowing mechanism 500 are adjusted to be aligned by the U-shaped clamp 110. The distance between the sowing mechanism 500 and the adjacent sowing mechanism 500 is the row spacing of the corn plants after sowing. Figure 1 As shown, four sets of sowing mechanisms 500 are provided on the frame 100, so four rows of corn seeds can be sown simultaneously each time.

[0052] Row-marking rods 120 are rotatably installed on the left and right sides of the frame 100. The row-marking rods 120 are erected when not in use. When in use, the row-marking rods 120 are rotated to a horizontal state. When in use, wheels for marking can be installed on the top of the row-marking rods 120. The row-marking rods 120 allow the seeder to mark lines while sowing. Because the seeder needs to turn around after each sowing, change the route and sow again, the row spacing when sowing again must be consistent with the row spacing of the previous sowing. Therefore, the use of row-marking rods 120 can ensure that the seeder can keep the row spacing of plants consistent when turning around and sowing again.

[0053] The film laying mechanism 400 includes a film winding roller 410, a guide roller 420, a pressure wheel 430 and a covering wheel 440. The film winding roller 410 is rotatably mounted on the frame 100 and is used for winding the ground film. Two guide rollers 420 are provided, which are rotatably mounted on the frame 100 respectively. After the ground film wound on the film winding roller 410 is pulled out, it passes between the two guide rollers 420 and is then laid on the ground. The guide roller 420 is installed at a position close to the ground. Because the ground film is automatically laid during the sowing process of the seeder as the seeder moves, the guide roller 420 is provided to guide and limit the ground film, so that the ground film can be laid flat on the ground. After the ground film is laid, the pressure wheel 430 presses over the edge of the ground film, and at the same time the covering wheel 440 covers the edge of the ground film with soil to fix the ground film.

[0054] Two pressing wheels 430 are provided and fixedly mounted on the frame 100 by U-shaped clamps. Two covering wheels 440 are also provided and fixedly mounted on the frame 100. The positions of the covering wheels 440 are also adjustable, and the specific positions of the pressing wheels 430 and the covering wheels 440 are adjusted according to the width of the ground film.

[0055] A plurality of sowing mechanisms 500 are provided, and each sowing mechanism 500 is composed of a mounting bracket 510, a seed box 520 and a seed drill 530. The mounting bracket 510 is used to fix the seed box 520 and the seed drill 530, and the mounting bracket 510 is fixedly mounted on the frame 100 by a U-shaped clamp 110. By adjusting the U-shaped clamp 110, the position of the seed drill 530 can be adjusted.

[0056] The two sides of the seed drill 530 are respectively a main plate 531 and a seed feeding plate 540. A central shaft 550 is installed at the center of the main plate 531 and the seed feeding plate 540. The two ends of the central shaft 550 are fixed by the mounting bracket 510. The seed feeding plate 540 is fixedly mounted on the central shaft 550. The main plate 531 is rotatably mounted on the central shaft 550. At the same time, the outer edge of the seed feeding plate 540 is rotatably mounted on a pressure plate 542. The pressure plate 542 and the main plate 531 are fixed by bolts and the outer seed ring 532 is encapsulated and fixed.

[0057] From the above content, it can be seen that the seed feed plate 540 and the central axis 550 are relatively fixed, while the pressure plate 542, the main plate 531 and the outer seed ring 532 can rotate as a whole around the central axis 550. That is to say, during the movement of the seeder, the pressure plate 542, the main plate 531 and the outer seed ring 532 can roll accordingly for sowing.

[0058] A plurality of duckbills 5321 are circumferentially arranged on the outer side of the outer seed ring 532, and the duckbills 5321 include a fixed duckbill 5322 and a movable duckbill 5323. An inner seed ring 533 is coaxially installed on the inner side of the outer seed ring 532. A plurality of seed inlets 5331 are arranged on the inner seed ring 533 at positions corresponding to the duckbills 5321, and a seed box 5332 is fixedly installed between each seed inlet 5331 and the corresponding duckbill 5321. Therefore, the outer seed ring 532 and the inner seed ring 533 are fixed as an integrated structure.

[0059] During the rolling process of the outer seed ring 532, when the duckbill 5321 rolls and contacts the ground, the duckbill 5321 will cut off the mulch film and insert into the soil, and the movable duckbill 5323 will open due to the contact pressure with the ground, and after opening, holes will be formed in the soil, and then the seeds in the duckbill 5321 will be put into the holes.

[0060] It should be noted here that there are generally two reasons for the appearance of empty holes or double plants during sowing. The first is that when taking seeds, the seed taking device cannot accurately control the number of seeds taken, resulting in missed seeds or excessive seeds being taken; the second is that although the seed taking device takes an accurate number of seeds, the seeds are not discharged as planned when the duckbill 5321 is opened due to seed jam or insufficient time during the process of moving the seeds to the duckbill. The following will combine the structural characteristics of the pre-storage tank 534 and the seed taking unit 535 to explain in detail how the present application solves the above two problems.

[0061] Pre-storage grooves 534 are installed on the inner side of the inner seed ring 533, and the pre-storage grooves 534 are distributed in a vortex shape. The direction of each pre-storage groove 534 is set according to the rolling direction of the seed drill 530 (the direction of the movable duckbill 5323 is also set according to the rolling direction of the seed drill 530). One end of the pre-storage groove 534 is an open end, and the other end is a closed end. The open end of the pre-storage groove 534 is fixedly connected to the seed inlet 5331 on the inner seed ring 533, and the top of the pre-storage groove 534 is in contact with the outer disk 536 and is fixedly connected to the outer disk 536.

[0062] The outer disk 536 has a plurality of seed taking nests 5361 at the corresponding positions of the closed ends of the pre-storage grooves 534 for connecting to the pre-storage grooves 534. The seed taking nest 5361 corresponding to the position of each seed inlet 5331 is called the theoretical seed taking nest of the seed inlet 5331. In the rolling direction of the seed drill 530, the seed taking nest 5361 located above the theoretical seed taking nest is called the pre-storage seed taking nest of the seed inlet 5331. The open end of each pre-storage groove 534 is connected to the seed inlet 5331, and the closed end is connected to the pre-storage seed taking nest of the seed inlet 5331 (such as Figures 9 to 11 shown);

[0063] It should be noted here that the reason why the pre-storage groove 534 is connected to the seed inlet 5331 and the corresponding pre-storage seed taking nest, rather than connecting the seed inlet 5331 and the corresponding theoretical seed taking nest, is that when a duckbill 5321 rolls to contact the ground, the movable duckbill 5323 opens, and at the same time the seed taking unit 535 opens, allowing the seeds to fall from the seed taking nest 5361 into the pre-storage groove 534, and then enter the duckbill 5321 along the pre-storage groove 534. Since the duckbill 5321 is opening, the seed drill 530 is still rolling, so the duckbill 5321 is open for a limited time. Within this limited time, the seeds may not be able to complete the process from the pre-storage groove 534 to the seed inlet 5331 and duckbill 5321 before the duckbill 5321 is closed. If it still does not reach the duckbill 5321, the seeds will be left in the duckbill 5321, resulting in no seeds being sown in the hole pierced by the duckbill 5321, which is what we call an empty hole. The outer seed ring 532 rotates one circle, and the duckbill 5321 pierces the soil again and opens, and the seeds inside will fall out. In this process, new seeds will enter the pre-storage groove 534 and fall into the duckbill 5321. Therefore, two seeds may fall out of the duckbill 5321 this time. The pre-storage groove 534 of the present application connects the seed inlet 5331 with the corresponding pre-storage seed taking nest, which can avoid such a situation. When each duckbill 5321 is sowing, the seed taking unit 535 will drop the seeds of the next duckbill 5321 into the pre-storage groove 534 in advance, leaving enough time for the seeds to reach the duckbill 5321.

[0064] And because the direction of the pre-storage groove 534 is consistent with the rolling direction of the seed drill 530, when the seed drill 530 rotates from the last duckbill 5321 to the next duckbill 5321, the seeds will automatically roll into the duckbill 5321 along the pre-storage groove 534. This design can not only accurately control the number of seeds sown, but also effectively control the landing point of the seeds, so that the seed spacing remains consistent.

[0065] In addition, because the cross-sectional size of the pre-storage groove 534 matches the size of the seed inlet 5331, and the top of the pre-storage groove 534 fits with the outer plate 536, after the seeds fall into the pre-storage groove 534 and before they enter the seed inlet 5331, there is only one channel for the seeds to pass through, and the seeds can only enter the seed inlet 5331 and the duckbill 5321 along the pre-storage groove 534. Therefore, in addition to pre-storing seeds for the next duckbill 5321, the pre-storage groove 534 also has a guiding function.

[0066] like Figures 5 to 13As shown, the fixed plate 538 is fixedly mounted on the central axis 550, the inner plate 537 is rotatably mounted outside the fixed plate 538, and the outer plate 536 is rotatably mounted outside the inner plate 537. One end of the seed scraper 539 is fixedly installed on the central axis 550, and the other end extends to the position of the seed removal nest 5361 and fits the surface of the outer plate 536. The length of the portion where the seed scraper 539 fits the surface of the outer plate 536 is slightly smaller than the width of the outer plate 536. The seed scraper 539 can sweep across the surface of the outer plate 536 and take away the seeds on the outer plate 536.

[0067] Since the outer disk 536, the pre-storage groove 534, the inner seed ring 533, and the outer seed ring 532 are fixed to each other, they can be regarded as a whole, rotating around the central axis 550, while the fixed disk 538, the seed scraper 539, and the seed feeding disk 540 are relatively stationary. The seed feeding disk 540 is provided with a seed feeding tube 541 connected to the seed box 520. The corn seeds in the seed box 520 enter the hole sower 530 through the seed feeding tube 541, and the seeds are accumulated in the cavity between the outer disk 536, the inner disk 537 and the seed feeding disk 540. When the outer seed ring 532 rotates, the outer disk 536 When the seed taking nest 5361 on the upper part rotates to the downward direction, the seed taking scraper 539 will sweep across the surface of the seed taking nest 5361 and sweep the seeds toward the seed taking nest 5361. Since the size of the seed taking nest 5361 is designed according to the size of corn kernels, a seed will enter the seed taking nest 5361. At the same time, the seed taking unit 535 below the seed taking nest 5361 will open to allow the seeds in the seed taking nest 5361 to fall into the pre-storage slot 534. Thereafter, the seed taking unit 535 will be closed immediately. With the joint action of the seed taking unit 535 and the seed taking scraper 539, it can be ensured that only one seed is taken each time.

[0068] An adjusting block 5381 is provided on the outer edge of the fixed plate 538. A groove 5341 is provided on the top of the closed end of the pre-storage groove 534 for installing a seed taking unit 535. The seed taking unit 535 includes an opening and closing rod 5351, a linkage rod 5352, a pulling rod 5353 and a roller 5355. Two opening and closing rods 5351 and two linkage rods 5352 are provided. The two opening and closing rods 5351 are located below the seed taking nest 5361, blocked between the seed taking nest 5361 and the pre-storage groove 534, and the two opening and closing rods 5351 are rotatably connected by a rotating shaft 5356. The rotating shaft 5356 is fixed in the groove 5341. The two opening and closing rods 5351 are rotatably installed with the linkage rods 5352 at positions close to the rotating shaft 5356, and the ends of the two linkage rods 5352 are rotatably connected with the pulling rod 5353.

[0069] The rotating shaft 5356 is a spring rotating shaft, and the opening and closing rod 5351 remains in a closed state under the action of the rotating shaft 5356. When the pulling rod 5353 pulls the two linking rods, the two opening and closing rods 5351 will open like scissors. When the two opening and closing rods 5351 are opened, the seed taking nest 5361 will be exposed. When the two opening and closing rods 5351 are closed, they will be blocked at the bottom of the seed taking nest 5361 to prevent seeds from entering the pre-storage groove 534. The surface of the opening and closing rod 5351 is covered with a layer of elastic rubber material.

[0070] The pulling rod 5353 is Y-shaped, and a spring 5354 is mounted on the pulling rod 5353. A roller 5355 is fixedly installed at the end of the pulling rod 5353. The adjusting block 5381 on the fixed plate 538 is a semicircular protrusion (it can also be designed to be other shapes). As the outer seed ring 532 rotates, the seed taking unit 535 will rotate accordingly, while the fixed plate 538 remains stationary. When the roller 5355 encounters the adjusting block 5381 during the rotation process, the adjusting block 5381 will push the pulling rod 5353 to move in the direction of the opening and closing rod 5351, causing the opening and closing rod 5351 to open (such as Fig.11 As shown), when the roller 5355 avoids the adjustment block 5381, the opening and closing rod 5351 closes automatically.

[0071] The adjustment block 5381 and the seed scraper 539 correspond in position and are both arranged at the lower part of the seed drill 530, that is, the seed accumulation area. Only when the seed nest 5361 passes through the seed accumulation area, the adjustment block 5381 and the seed scraper 539 will work to allow the seeds to fall from the seed nest 5361 into the pre-storage groove 534.

[0072] The number of seed taking nests 5361 on the outer plate 536 is consistent with the number and distribution position of the duckbill 5321, and the surface of the outer plate 536 is lower than the inner plate 537; the number of pre-storage slots 534 and seed taking units 535 is also consistent with the number of duckbill 5321, and the distribution position of the seed taking units 535 corresponds to the distribution position of the duckbill 5321;

[0073] The distribution position of the duckbill 5321 determines the distance between adjacent seeds during sowing, and the seed collection nest 5361, the pre-storage groove 534, the seed collection unit and the corresponding duckbill 5321 constitute a channel for each seed to be discharged from the seed drill 530.

[0074] The top clamp type corn film laying and breaking precision seeder of the present application has the following working process:

[0075] S1: Adjust the positions of the fertilizing mechanism 200, the drip irrigation tape laying mechanism 300, the film laying mechanism 400, and the sowing mechanism 500 so that they correspond to each other, and at the same time lower the rowing rod 120, and install wheels on the rowing rod 120 for rowing;

[0076] S2: The seeder is towed by a tractor. During the moving process, the fertilizing mechanism 200 applies fertilizer, the drip irrigation belt laying mechanism 300 lays drip tubes, the film laying mechanism 400 lays ground film, and the edge pressing wheel 430 and the soil covering wheel 440 press the edge of the laid ground film and cover the soil;

[0077] S3: The hole sower 530 rolls on the ground film. During the rolling process, when the duckbill 5321 rotates to the lower part, the duckbill 5321 will break the ground film and penetrate into the soil. Then, the duckbill 5323 opens to form holes in the soil, and the seeds in the duckbill 5321 are dropped into the holes.

[0078] S4: When the duckbill 5321 is opened, the seed scraper 539 pushes the seeds to sweep across the seed nest 5361 at the corresponding position to ensure that there are seeds entering the seed nest 5361, while taking away other seeds. At the same time, the seed unit 535 in the seed nest 5361 hits the adjustment block 5381 and automatically opens, allowing the seeds in the seed nest 5361 to fall into the pre-storage slot 534, and then the seed unit 535 automatically closes;

[0079] S5: The duckbill 5321 is closed, and the hole seeder 530 continues to roll. During the rolling process, the seeds go along the pre-storage groove 534 and enter the next duckbill 5321. When the next duckbill 5321 rotates to the lower part, it will break the mulch film and penetrate into the soil. After that, this duckbill 5321 opens and the seeds inside are put into the holes. At the same time, a seed inside will enter the pre-storage groove 534 connected to the next duckbill 5321.

[0080] S6: After completing the sowing task of a row, the seeder turns around and continues sowing along the line of the row rod 120.

[0081] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A top-clamp corn film-laying and -breaking precision seeder, comprising a frame (100), on which a fertilizing mechanism (200), a drip irrigation belt laying mechanism (300), a film-laying mechanism (400), a sowing mechanism (500) and a soil covering mechanism (600) are sequentially installed from left to right, characterized in that: A plurality of seeding mechanisms (500) are provided, each seeding mechanism (500) is composed of a mounting bracket (510), a seed box (520) and a seed drill (530), the mounting bracket (510) is used to fix the seed box (520) and the seed drill (530), and the mounting bracket (510) is fixedly mounted on the frame (100) via a U-shaped clamp (110), and the seed box (520) is connected to the seed drill (530) via a seed inlet tube (541); The two sides of the hole sower (530) are respectively a main plate (531) and a seed feeding plate (540); an outer seed ring (532) and an inner seed ring (533) are encapsulated between the main plate (531) and the seed feeding plate (540); a pre-storage groove (534), a seed taking unit (535), an outer plate (536), an inner plate (537), a fixed plate (538) and a seed taking scraper (539) are installed inside the inner seed ring (533); and a plurality of seed taking holes (5361) are provided on the outer plate (536); Along the axial direction of the outer disk (536), the side from the outer disk (536) to the seed feeding disk (540) is the upper side of the outer disk (536), and the side from the outer disk (536) to the main disk (531) is the lower side of the outer disk (536). A seed taking unit (535) is correspondingly arranged below each seed taking nest (5361), and a pre-storage groove (534) is arranged below each seed taking unit (535). The seed taking unit (535) is blocked between the seed taking nest (5361) and the pre-storage groove (534), and controls the seeds to fall from the seed taking nest (5361) into the pre-storage groove (534) by opening and closing itself; The seed taking unit (535) comprises an opening and closing rod (5351), a linkage rod (5352), a pulling rod (5353) and a roller (5355). Two opening and closing rods (5351) and two linkage rods (5352) are provided. The two opening and closing rods (5351) are located below the seed taking nest (5361) and are blocked between the seed taking nest (5361) and the pre-storage groove (534). The two opening and closing rods (5351) are rotationally connected via a rotating shaft (5356). The two opening and closing rods (5351) are rotationally installed with the linkage rods (5352) at positions close to the rotating shaft (5356). The ends of the two linkage rods (5352) are rotationally connected with the pulling rod (5353). The pulling rod (5353) is Y-shaped. A spring (5354) is mounted on the pulling rod (5353). The roller (5355) is fixedly installed at the end of the pulling rod (5353). The hole sower (530) pierces the mulch film, pokes holes in the soil, and drops the pre-stored seeds into the holes. At the same time, the opening and closing rod (5351) in the seed taking unit (535) is synchronously opened, and the seed taking scraper (539) scrapes and sweeps across the surface of the seed taking hole (5361), ensuring that only one seed falls into the seed taking hole (5361) at a time and enters the pre-storage groove (534), thereby pre-storing seeds for the next sowing. The seed taking scraper (539), the opening and closing rod (5351), and the pre-storage groove (534) always maintain coordinated linkage to complete precise seed taking and seed discharge.

2. The top clamp type corn film laying and breaking precision seeder according to claim 1, characterized in that: A central shaft (550) is installed at the central position of the main disk (531) and the seed feeding disk (540); the seed feeding disk (540) and the central shaft (550) are fixedly mounted; the main disk (531) and the central shaft (550) are rotationally mounted; and at the same time, a pressure plate (542) is rotationally mounted on the outer edge of the seed feeding disk (540); the pressure plate (542) and the main disk (531) are fixed by bolts and the outer seed ring (532) is encapsulated and fixed; A plurality of duckbills (5321) are arranged along the circumferential direction on the outer side of the outer seed ring (532), and the duckbills (5321) include fixed duckbills (5322) and movable duckbills (5323). An inner seed ring (533) is coaxially mounted on the inner side of the outer seed ring (532), and a plurality of seed inlets (5331) are arranged on the inner seed ring (533) at positions corresponding to the duckbills (5321), and a seed box (5332) is fixedly mounted between each seed inlet (5331) and the duckbills (5321) at the corresponding positions.

3. The top clamp type corn film laying and breaking precision seeder according to claim 2, characterized in that: Pre-storage grooves (534) are installed on the inner side of the inner seed ring (533), and the pre-storage grooves (534) are distributed in a vortex shape. The direction of each pre-storage groove (534) is set according to the rolling direction of the seed drill (530), and one end of the pre-storage groove (534) is an open end and the other end is a closed end. The open end of the pre-storage groove (534) is fixedly connected to the seed inlet (5331) on the inner seed ring (533), and the side of the pre-storage groove (534) close to the outer disk (536) is in contact with the outer disk (536) and is fixedly connected to the outer disk (536); The outer disk (536) is provided with a plurality of seed taking holes (5361) at positions corresponding to the closed end of the pre-storage groove (534) for connecting to the pre-storage groove (534); the seed taking hole (5361) corresponding to the position of each seed inlet (5331) is called the theoretical seed taking hole of the seed inlet (5331); in the rolling direction of the seed drill (530), the seed taking hole (5361) located above the theoretical seed taking hole is called the pre-storage seed taking hole of the seed inlet (5331); the open end of the pre-storage groove (534) is connected to the seed inlet (5331), and the closed end of the pre-storage groove (534) is connected to the pre-storage seed taking hole of the seed inlet (5331).

4. The top clamp type corn film laying and breaking precision seeder according to claim 3, characterized in that: The fixed plate (538) is fixedly mounted on the central axis (550), the inner plate (537) is rotatably mounted outside the fixed plate (538), and the outer plate (536) is rotatably mounted outside the inner plate (537). An adjustment block (5381) is provided on the outer edge of the fixed plate (538), and the adjustment block (5381) cooperates with the seed taking unit (535).

5. The top-clamp corn film laying and breaking precision seeder according to claim 4, characterized in that: A groove (5341) is provided at the top of the closed end of the pre-storage tank (534) for installing the seed taking unit (535), the rotating shaft (5356) is fixed in the groove (5341), and the roller (5355) is in contact with the adjustment block (5381).

6. The top-clamp corn film laying and breaking precision seeder according to claim 5, characterized in that: One end of the seed scraper (539) is fixedly mounted on the central axis (550), and the other end extends to the position of the seed removal hole (5361) and fits the surface of the outer plate (536).

7. The top-clamp corn film laying and breaking precision seeder according to claim 6, characterized in that: The number of the seed nests (5361) on the outer plate (536) is consistent with the number and distribution positions of the duck bills (5321), and the surface of the outer plate (536) is lower than the surface of the inner plate (537); The number of the pre-storage tanks (534) and the seed taking units (535) is also consistent with the number of the duck bills (5321), and the distribution positions of the seed taking units (535) correspond to the distribution positions of the duck bills (5321).

8. The top-clamp corn film laying and breaking precision seeder according to claim 7, characterized in that: The cross-sectional size of the connection between the pre-storage tank (534) and the seed inlet (5331) matches the size of the seed inlet (5331).

9. The top-clamping corn film-laying and -breaking precision seeder according to claim 1, characterized in that: The fertilization mechanism (200) comprises a fertilization box (210) and a fertilization wheel (220); the fertilization box (210) is fixedly mounted on the frame (100); a plurality of fertilization wheels (220) are provided, and each fertilization wheel (220) is fixedly mounted on the frame (100) via a U-shaped clamp (110); a fertilization pipe (211) is mounted at the bottom of the fertilization box (210); and an outlet of the fertilization pipe (211) is fixed on the fertilization wheel (220); A plurality of the drip irrigation tape laying mechanisms (300) are provided, and are all fixedly mounted on the frame (100) via U-shaped clips (110); The film laying mechanism (400) comprises a film rolling roller (410), a guide roller (420), a pressure wheel (430) and a soil covering wheel (440); the film rolling roller (410) is rotatably mounted on a frame (100) for winding the ground film; two guide rollers (420) are provided and are rotatably mounted on the frame (100), respectively; two pressure wheels (430) are provided and are fixedly mounted on the frame (100) via U-shaped clips; and two soil covering wheels (440) are also provided and are fixedly mounted on the frame (100); Rowing rods (120) are rotatably mounted on the left and right sides of the frame (100).

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