Split tray seeder

Abstract

The split-type hole tray seeder is composed of a frame, a bottom drain plate, a seed filling plate, a seed guide grid (4) and a single-sided adhesive tape; the bottom drain plate, the seed filling plate and the seed guide grid have various specifications and can be conveniently combined, installed and replaced with each other; the frame is in the shape of a rectangular frame, the bottom drain plate is densely and evenly distributed with seed holes, the seed filling plate is embedded with a permanent magnet matching the position of the soft magnet on the bottom drain plate, and is distributed with various seed filling holes, the seed guide grid is in the shape of a fence, and is formed by a plurality of mutually parallel grid plates connected by a connecting frame, the grid plates are embedded with a long strip of soft magnet matching the position of the permanent magnet on the seed filling plate, and the direction of the long strip of permanent magnet is perpendicular to the grid plates and parallel to the connecting frame. The single-sided adhesive tape is a transparent strong traceless adhesive tape. The seeder of the present invention can replace ten with one, thereby reducing the burden on farmers and preventing seed waste.

Description

1. Technical Field

[0001] The utility model relates to a split-type plug tray seeder which belongs to agricultural machinery, in particular to a sowing machinery. 2. Background technology

[0002] The plug tray seeders currently used in the market (patent publication numbers CN204598633U and CN205510779U) can only be used for sowing one seed of one plant in one seedling tray, while the seedling trays used by farmers have various specifications, such as 32 holes, 50 holes, 72 holes, 98 holes, 105 holes, 128 holes, 200 holes, etc., and there are many types of crops planted, such as planting various vegetables, rice, cotton, medicinal materials, etc. The seeds of these plants have various shapes and sizes. To sow these crops, a lot of seeders must be purchased, which increases the economic burden of farmers and also causes a waste of resources. In addition, this kind of seeder also has the defects of time-consuming seed filling operation, more seeds must be put into the seeder, long seeding time, easy spilling of seeds during seeding, and laborious operation. 3. Summary of the invention

[0003] A seeder is designed which can adapt to the seeding and sowing of various plant seeds in various plug trays without wasting seeds, has high efficiency, and can work normally even when the amount of seeds is small.

[0004] The idea is as follows:

[0005] Although there are many specifications of holes in the seedling trays on the market, the size of the trays is basically the same, the holes are arranged regularly, and the hole area is relatively large compared to the plant seeds. Several or even dozens of seeds can be placed in the area of ​​a hole. For example, the holes of the 21-hole seedling tray are squares with a side length of 60 mm, and more than 400 Shanghai green seeds can be placed in a hole area. Because a seed is sown in a hole, whether it is sown in the center of the hole or on the edge of the hole, the seed can develop and grow normally in the hole. From this, it is thought that a variety of seed filling holes that can match the positions of the holes in various specifications of plug trays and have shapes and sizes that can adapt to the seeds of various plants can be densely designed on the same seeder. When it is used to sow in a certain plug tray, the seed filling holes that do not match this plug tray are covered, and the seed filling holes that match this plug tray are left, and sowing can be done on this plug tray. When sowing a certain plant, the seed filling holes that do not match the seeds of this plant are covered, and the seed filling holes that match the seeds of this plant are left. In this way, the same seeder can be used to sow plug trays of various specifications. When a certain plant seed is to be sown in the plug tray, the seed filling holes that do not match the seeds of this plant are covered, and the seed filling holes that match the seeds of this plant are left. In this way, the same seeder can be used to sow multiple plant seeds in plug trays of various specifications.

[0006] There are many specifications of plug trays on the market, and there are also many shapes, classifications and sizes of seeds, so it is necessary to design the various components of the seeder into separate parts. When the plug tray or seeds need to be changed, the relevant seeder components are replaced.

[0007] In addition, if there are few seeds and they cannot cover the entire surface of the seeder, it will take a long time for the seeds to enter the seed filling holes during the seeding operation. Providing a groove that can guide the seeds to the seed filling holes can significantly improve the seed filling efficiency. Adding a device to prevent seed spillage around the upper surface of the seeder can improve the operating efficiency, prevent seed spillage and waste, and increase the strength of the seeder.

[0008] The specific structure of the seeder is as follows:

[0009] Split tray seeder ( Figure 1 — Figure 6 ), which is composed of a frame (1), a bottom drain plate (2), a seed filling plate (3), a seed guide grid (4) and a single-sided traceless adhesive tape; the bottom drain plate, the seed filling plate, the seed guide grid ( Figure 8 , Fig.10 ) There are various specifications, which can be easily combined, installed and replaced;

[0010] The frame is in the shape of a rectangular frame, and is composed of surrounding panels, a U-shaped anti-scattering edge (5) with a right-angled bend at the mouth facing inward, a foot edge (6) with a right-angled bend at the bottom of two long panels and a short panel, and a seed storage box (7) on the long panel; a residual seed removal port (13) is provided at one corner of the anti-scattering edge, and the foot edge is in the shape of a step, and the bottom of the short panel without a foot edge is higher than the upper step on the foot edge; this structure facilitates the insertion of the seed filling plate into the frame from here.

[0011] The bottom leakage plate is densely and evenly distributed with leakage holes (9), because the more leakage holes there are, the more types of plug trays and plant species can be matched. There is a spring (23) mounting hole (10) at one end, and a large number of small soft magnets (11) are evenly embedded in the middle part and the end where the spring is installed. Because the small soft magnets occupy a small space, more positions can be reserved for setting leakage holes to match more filling holes.

[0012] The seed filling plate is embedded with a permanent magnet (12) that matches the position of the soft magnet on the bottom drain plate, and is distributed with a variety of seed filling units ( Figure 7 ), for example, the seed filling unit 35 is composed of two rectangular holes of different sizes and two circular holes of different sizes, and there are six such seed filling units (31, 32, 33, 34, 35, 36). The seed filling unit 37 is composed of four circular holes of different sizes. The position distribution of the same seed filling unit matches the position of the hole of a plug tray, and one seed filling unit matches one hole on the seedling tray. For example Figure 7In the embodiment, the seed filling unit 37 matches with the twelve-hole seedling tray, and the seed filling unit 36 ​​matches with the six-hole seedling tray. The seed filling unit is composed of a plurality of seed filling holes of different shapes and sizes ( Figure 7 , Figure 4 ), for example, the seed filling units 31-36 are all composed of a small round hole (44), a large rectangular hole (43), a small rectangular hole (42) and a large round hole (41); the seed filling units similar to 37 have a total of 4 rows and 3 columns, 12 seed filling units, each of which is composed of four round holes (51, 52, 53, 54) from small to large, and the size and shape of the seed filling holes match the plant seeds; the same seed filling units (31, 32, 33) are arranged in rows (see Figure 7 ), the same seed filling holes (42, 45) are arranged in rows (see Figure 4 Figure 5 );

[0013] The shape, size and position of the seed filling hole also match the size and position of the seed leakage hole () below it; the same seed leakage hole can match at least one seed filling hole;

[0014] There is no seed filling hole in the seed storage box;

[0015] One end of the seed filling plate has a spring mounting hole (16) ( Fig.15 ) and an upward right-angle flange (14); since there is no foot edge at the bottom of this end of the frame and the strength is insufficient, the right-angle flange is fixed to the enclosure with screws to increase the strength of the seeder at this end.

[0016] Except for the seed filling unit of the customized specific plug tray, the openings of other seed filling units are all sealed with single-sided seamless tape (61, 62) (63, 64, 65); for example Figure 4 In the process, the seed filling units 31-36 are all sealed with single-sided seamless tapes 61, 62 (see Figure 7 ), only the seed filling unit 37 is exposed outside, which is customized into a 37 seed filling unit twelve-hole seedling tray seeder. Fig.10 The six-hole tray seeder is customized. The seed guide is fence-shaped ( Fig.16 ), which is formed by connecting a plurality of mutually parallel grid plates through a connecting frame (19), wherein a long strip of soft magnets matching the position of the permanent magnets on the seed filling plate are embedded on the grid plates, the direction of the long strip of soft magnets is perpendicular to the grid plates and parallel to the connecting frame (19), the length and width of the fence match the hole tray, the grid plate width (17) matches the width of the seed filling unit and the interval between the seed filling units, the grid gap width (18) is equal to slightly larger than the distance between the seed filling holes, the grid gap is located at the end of the seed storage box and is a gradually enlarged funnel-shaped opening, and the grid gap height is more than twice the size of the plant seeds, such a height can prevent the seeds from blocking the grid gap during the seeding operation; a seed guide grid ( Figure 8) matches a filling unit (31, 32, 33, 34, 35, 36), for example Figure 2 Fig. 9 The seed grid shown is used to match a seeding unit such as seeding unit 37.

[0017] The end of the seed filling plate without the right-angle flange is inserted into the frame from the bottom of the panel without the foot edge of the frame, and is closely attached to the upper steps of the three foot edges, and the two are fixedly connected with screws (8); the edge of the seed filling plate and the lower step of the upper foot edge of the frame form a slide groove (20)

[0018] The bottom drain plate is tightly attached to the bottom of the seed filling plate by the binding of magnetic force and the slide groove (20), the spring installation holes on the two are opposite, the spring is installed in the hole, one end of the spring is against the bottom drain plate, and the other end is against the seed filling plate; the elastic force keeps the seed filling hole and the drain hole in a staggered state.

[0019] The single-sided traceless tape is a strong transparent single-sided traceless tape with a width of 4 mm and a thickness of less than 0.2 mm. The tape is transparent, which makes it easy to observe the plug tray during sowing. When the single-sided traceless tape is removed, no adhesive will remain on the seed filling plate. The width is 4 mm, which can seal the seed filling holes along the column direction. The thickness is less than 0.2 mm, which can prevent the tape from blocking the flow of seeds during the seeding operation. The following uses the example of customizing the seeder to sow multiple plant seeds on six-hole and twelve-hole seedling plug trays to explain the use of single-sided traceless tape and fences:

[0020] First, let's look at how to sow Shanghai green vegetable seeds in a six-hole seedling tray. The seeds of Shanghai green are spheres with a diameter of about 1.5 mm, and the diameter of the seed filling hole is about 2 mm. Assuming Figure 7 The middle seed filling holes 44, 46, 47, 48, 49, 50 are circular holes with a diameter of 2 mm.

[0021] First, use a single-sided seamless tape with a width of 4 mm and a thickness of less than 0.2 mm. Fig.10 The positions (63, 64, 65) shown in the figure seal these seed filling units row by row, and then place the seed guide grid on the seed filling plate ( Fig.11 ), align the long strip soft magnetic body on it with the permanent magnet on the seed filling plate, move the seed guide grid along the direction of the connecting frame (19) to cover the unnecessary seed filling holes (41, 42, 43, etc.), exposing the seed filling holes 44, 46, 47, 48, 49, 50 with a diameter of 2 mm, and then fix the seed guide grid on the seed filling plate with tape.

[0022] When sowing, put the Shanghai green seeds into the seed storage box, raise one side of the seed storage box, shake the seeder, and the seeds are guided into the narrow slot by the trumpet mouth of the fence, flow along the narrow slot, meet the seed filling hole, and quickly fall into the seed filling holes 44, 46, 47, 48, 49, 50 under the action of gravity.

[0023] Push the sowing operation handle (15) by hand to compress the spring so that the seed filling hole and the seed leakage hole are aligned (see Fig.17 The seeds fall into the hole in the tray. Release the sowing operation handle, and the spring will extend. When the spring extends to the wall of the installation hole on the seed filling plate, it will be blocked and cannot extend any further (see Fig.17 At this time, the seed filling hole and the seed leakage hole are just offset, and the spring installation hole plays a role in limiting the expansion and contraction of the spring.

[0024] When you want to sow other plant seeds in the six-hole seedling tray, move the seed guide grid ( Fig.12 , Fig.13 , Fig.14 ), cover the unnecessary filling holes (44, 46, 47, 48, 49, 50, etc.), expose the necessary filling holes, and repeat the above steps.

[0025] After sowing, the seeder is tilted toward the residual seed outlet (13) to pour out the residual seeds.

[0026] 1. It guides the seeds and improves the seed filling efficiency. Even if the amount of seeds is small, they can be quickly filled into the seed filling holes. If there is no trumpet mouth of the fence to concentrate the seeds in the direction of the seed filling holes, the seeds will be scattered all over the seed filling plate. Especially when the amount of seeds is small, it will take a lot of time and effort to fill all the seed filling holes.

[0027] 2. Cover the unnecessary seed holes to achieve the purpose of sowing multiple seeds with one seed-filling board. Here, this fence is combined with the seed-filling board to sow four kinds of plant seeds.

[0028] Uncover Fig.10 The single-sided traceless tape 63, 64, 65 in the 12-hole seedling tray is exposed. Figure 4 The single-sided non-marking adhesive tape 61, 62 is used to seal the seed filling holes matching the six-hole seedling tray, and the seed filling hole is covered, which becomes a twelve-hole seedling tray seeder. Because there are 4 seed filling units in one row, the seed guide grid matching it must have 5 grid plates ( Figure 2 , Fig. 9 ), because each unit has four filling holes (51, 52, 53, 54) ( Figure 4 ), use the method described above Figure 2 The seed guide grid shown can be used to sow four types of plant seeds.

[0029] As mentioned above, tape and fence can be used to Figure 1 The seeder shown is customized into eight types of seeders in total, which achieves the effect of one for ten (one for eight).

[0030] If there is no seed guide grid, all unnecessary seed filling holes can be sealed with single-sided seamless tape, leaving the necessary seed filling holes, so as to customize the seeder for sowing certain plug trays and certain plant seeds. However, there are defects such as the inability to guide the seeds and the long seeding time and the troublesome and time-consuming sealing tape. In addition, the seed filling plate is bound together with the frame by screws and magnetic force, and is bound together with the bottom drain plate by magnetic force, springs and slide grooves. The screws and springs can be removed to separate them, so that other plug trays and plant seeds can be matched by replacing the seed filling plate and the bottom drain plate. Due to the anti-spill edge (5) structure, seeds will not be thrown out from the seeder, and there is no need to be cautious and restrained during the sowing operation. The seeder can be shaken significantly, thereby improving the sowing efficiency. IV. Description of the drawings

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the seeder.

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of a 12-hole seed guide grid.

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the bottom leakage plate.

[0034] Figure 4 It is a diagram of a customized 12-unit charging unit seeder sealed with single-sided seamless tape.

[0035] Figure 5 yes Figure 4 A-A section view.

[0036] Figure 6 yes Figure 4 B-B section view.

[0037] Figure 7 It is a marking diagram of the seed filling unit and the seed filling hole.

[0038] Figure 8 It is a six-cell conductive grid.

[0039] Fig. 9 It is a twelve-unit seed-filling grid.

[0040] Fig.10 It is a diagram of a customized 6-unit charging unit seeder sealed with single-sided seamless tape.

[0041] Fig.11 , Fig.12 , Fig.13 , Fig.14 This is a schematic diagram of how to use the seed grid.

[0042] Fig.15 It is a schematic diagram of the filling plate structure.

[0043] Fig.16 yes Figure 6 Enlarged view of the middle spring, diagram of the spring working principle.

[0044] Fig.17 This is a schematic diagram of a 960-well bottom leak plate.

[0045] Fig.18 This is a schematic diagram of a 50-hole and 72-hole seed filling plate.

[0046] Fig.19 This is a schematic diagram of a 50-hole seed grid.

[0047] Fig. 20 This is a schematic diagram of a 72-hole seed grid.

[0048] In the figure, 1 is a skeleton, 2 is a bottom leakage plate, 3 is a seed filling plate, 4 is a seed guide grid, 5 is an anti-spill edge, 6 is a foot edge, 7 is a seed storage box, 8 is a screw, 9 is a seed leakage hole, 10 is a bottom leakage plate spring mounting hole, 11 is a soft magnet, 12 is a permanent magnet, 13 is a residual seed removal port, 14 is a flange, 15 is a sowing handle, 16 is a seed filling plate spring mounting hole, 17 is a grid width, 18 is a grid gap width, 19 is a connecting frame, 20 is a slide groove, 23 is a spring, 31, 32, 33, 34, 35, 36, 37 is a seed filling unit, 41, 42, 43, 44, 45, 51, 52, 53, 54 is a seed filling hole, 61, 62, 63, 64, 65 is a single-sided traceless tape. 5. Specific implementation methods

[0049] The structure of the seeder is further described below in conjunction with the accompanying drawings and specific implementations. The structure of the split tray seeder is the same as the above, with a bottom drain plate ( Fig.17 ) has a matrix layout of 10 rows, 96 columns, 960 holes, 6 mm row spacing, 28 cm column spacing, 25 cm long and 3.8 mm wide. This bottom plate can match most plug trays and many types of plant seeds. Fig.18 ) has 11 rows of seed filling units, the odd-numbered rows (1, 3, 5, 7, 9, 11) are the same type of seed filling units, with a total of 6 rows, each row has twelve seed filling units, this type has a total of 72 seed filling units, matching the 72-hole seedling tray. The even-numbered rows (2, 4, 6, 8, 10) are another type of seed filling units, with a total of 5 rows, each row has ten seed filling units, this type has a total of 50 seed filling units, used to match the 50-hole seedling tray. The two types of seed filling units are the same in shape and size. Each seed filling unit is composed of four circular holes, with diameters of 2.7 mm, 2.5 mm, 2.3 mm, and 2.6 mm from bottom to top. This type of seed filling hole is used to sow seeds of broccoli, cabbage, baby cabbage, Shanghai green and other plants. Seed guide grid ( Fig.19 ) has 11 grid plates, 10 grid slots, and a seed filling plate ( Fig.18 ) The even-numbered columns are matched with seeding units. Fig. 20 ) has 13 grid plates and 12 grid slots, and the seed filling plate ( Fig.18 ) on the odd-numbered columns to fill the cell matching.

[0050] Since the seed filling holes on the seed filling board must match the positions of the holes in the two seedling trays and the seed leakage holes in the bottom leakage board, conflicts are inevitable during design. For example, if the seed filling units are distributed on the seed filling board according to the hole position matrix of the plug tray, when the seed filling board is matched and overlapped with the bottom leakage board below it, it is possible that the bottom of a row of seed filling units is exactly on the partition wall between the two rows of seed leakage holes (see Fig.18 , Fig.19 ), it is necessary to adjust the position of this column of seed filling units to the left and right so that there is a column of seed leakage holes below it. After adjusting the left and right positions, some seed filling holes may not have seed leakage holes below them. In this case, the positions of the seed filling holes have to be adjusted upward in the column, which destroys the matrix distribution of the seed filling units, resulting in unequal row spacings for some seed filling units, and the grid plates of the matching seed guide grids cannot all be the same width.

[0051] The advantages of this seeder can be maximized by arranging the seed filling holes on the seed filling board in the following way (see Fig.10 , Fig.18 ), showing the effect of one against ten:

[0052] 1. Arrange the seed holes on the seed filling board in a matrix according to the number of rows, columns, row spacing, and column spacing of the holes in a certain plug tray, which match the seeds of a certain plant. You can use CAD software or PS software to arrange them, or you can guide the plug tray on the seed filling board to arrange them;

[0053] 2. Match the filling plate and the bottom drain plate together, refer to Fig.16 As shown in the figure below, the sowing handle (15) of the bottom drain plate is placed against the right-angle flange (14) of the seed filling plate, and the positions of the seed filling holes are fine-tuned in the whole row and column up and down, left and right, so that the bottom of each seed filling hole is directly opposite to the seed filling hole. Since the interval between two adjacent columns on the bottom drain plate is only 3 mm (column spacing 28 mm-seed filling hole length 25 mm=3 mm), the interval between adjacent seed filling holes is only 2.2 mm (row spacing 6 mm-seed filling hole width 3.8 mm=2.2 mm), which are much smaller than the hole in the plug tray, and the seed filling holes are very small, when the positions of the seed filling holes are fine-tuned in the whole row and column up and down, left and right, it is not easy to conflict with the positions of the hole in the plug tray. However, in order to match more plug trays and plants, the distance of fine-tuning in the whole row and column up and down, left and right should be as small as possible;

[0054] 3. Arrange seed filling holes for other plant seeds right above the adjacent seed leakage holes along the entire row, keeping the number of seed filling holes in each unit the same until each column is filled with seed filling holes;

[0055] 4. Arrange the seed holes for seeds of another type of plug tray plant according to the above method. If they overlap with the already arranged seed holes, adjust the positions of the entire column left and right to stagger them while ensuring that they do not exceed the matching plug tray hole area.

[0056] Fig.18 This is a physical picture arranged by CAD software. Fig.18 It can be seen that several kinds of seed filling holes for plant seeds can be arranged in the column direction, and several kinds of seed filling holes for plug trays can be arranged in the row direction. If they are fully arranged, this seed filling plate can be customized into at least 10 kinds of seeders! It greatly reduces the economic burden of farmers and saves resources. Its beneficial effects are obvious. VI. The beneficial effects of the present invention are as follows.

[0057] 1. Split design, just replace a few parts to change the matching plug tray or plant seeds, saving resources and reducing the burden on farmers.

[0058] 2. The method of arranging the seed filling holes on the seed filling board achieves the effect of one hole for ten holes, saving resources and reducing the burden on farmers.

[0059] 3. The seed guide fence can increase the strength of the seeder, improve the sowing efficiency, and can also adapt to the sowing of a small amount of seeds.

[0060] 4. The design of anti-spill edge can increase the strength of the seeder, improve sowing efficiency and prevent seed waste.

Claims

1. Split tray seeder, characterized by It is composed of a frame, a bottom drain plate, a seed filling plate, a seed guide grid and a single-sided traceless tape; the seed filling plate, the seed guide grid and the bottom drain plate have various specifications and can be installed and replaced on the seeder respectively; The frame is a rectangular frame, consisting of surrounding panels, a U-shaped anti-spill edge with a right-angled edge facing inward, two long panels and a short panel, a foot edge with a right-angled edge facing inward at the bottom, and a seed storage box on a long panel; there is a residual seed removal port at one corner of the anti-spill edge, the foot edge is in the shape of a step, and the bottom of the short panel without a foot edge is higher than the step on the foot edge; The seed holes are evenly distributed on the bottom leakage plate, one end of which has a bottom leakage plate spring installation hole, and a large number of small soft magnets are evenly embedded in the middle part and the end where the spring is installed; A permanent magnet matching the position of the soft magnet on the bottom leaking plate is embedded on the seed filling plate, and a plurality of seed filling units are distributed. The position distribution of the same seed filling unit matches the position of a hole in a plug tray. The seed filling unit is composed of a plurality of seed filling holes of different shapes and sizes, and the size and shape of the seed filling holes match the plant seeds. The same seed filling units are distributed in columns, and the same seed filling holes are distributed in rows. The shape, size and position of the seed filling holes also match the size and position of the seed leaking hole below them. The same seed leaking hole matches at least one seed filling hole. There is no seed filling hole in the seed storage box; One end of the seed filling plate is provided with a seed filling plate spring mounting hole and an upward right-angle flange; Except for the seed filling unit of the customized plug tray, the openings of other seed filling units are all sealed with single-sided seamless tape; The seed guide grid is in the shape of a fence, and is composed of a grid plate and a connecting frame. A long strip of soft magnets matching the position of the permanent magnets on the seed filling plate is embedded on the grid. The direction of the long strip of soft magnets is parallel to the connecting frame (19). The length and width of the grid match the hole tray. The width of the grid plate matches the width of the seed filling unit and the interval between the seed filling units. The width of the grid gap is equal to or slightly larger than the distance between the seed filling holes. The grid gap is located at the end of the seed storage box and is a gradually enlarged funnel-shaped opening. The height of the grid gap is more than twice the size of the plant seeds. One seed guide grid matches one seed filling unit. The end of the seed filling plate without a right-angle flange is inserted into the frame from the bottom of the enclosure plate without a foot edge of the frame, and is tightly attached to the upper steps of the three foot edges, and the two are fixedly connected with screws; the edge of the seed filling plate and the lower step of the upper foot edge of the frame form a slide groove, and the bottom leakage plate is tightly attached to the bottom of the seed filling plate through the magnetic force and the constraint of the slide groove, the spring mounting holes on the two are opposite, the spring is installed in the hole, one end of the spring is against the bottom leakage plate, and the other end is against the seed filling plate.

2. A split tray seeder as claimed in claim 1, characterized in that The method for arranging the positions of the seed filling holes on the seed filling plate is as follows: (1) the seed filling holes matching a certain type of plant seeds are arranged in a matrix on the seed filling plate according to the number of rows, columns, row spacing, and column spacing of the hole holes of a certain type of hole tray; (2) the seed filling plate is matched and overlapped with the bottom leaking plate, and the positions of the seed filling holes are finely adjusted up and down, left and right, in the entire row and column, so that the bottom of each seed filling hole is directly opposite to the leaking hole; (3) the seed filling holes for other plant seeds are arranged along the entire row just above the adjacent leaking holes, and the number of seed filling holes in each unit is kept the same until each column is filled with seed filling holes; (4) the seed filling holes for another type of hole tray and multiple types of plant seeds are arranged according to the above method. If they overlap with the arranged seed filling holes, the entire column is adjusted left and right to stagger them while ensuring that they can match the leaking holes and the hole holes of the hole tray.

3. A split tray seeder as claimed in claim 1, characterized in that The single-sided seamless adhesive tape has a width of 4 mm and a thickness of less than 0.2 mm.

4. A method for customizing the split-type plug tray seeder as claimed in claim 1 into a seedling tray and a plant seed seeder, characterized in that First, use a single-sided seamless tape with a width of 4 mm and a thickness of less than 0.2 mm to seal various seed filling units outside the hole tray row by row, then place the seed guide grid on the seed filling board, align the long soft magnetic strip on it with the permanent magnet on the seed filling board, move the seed guide grid along the direction of the connecting frame to cover the unnecessary seed filling holes and expose the seed filling holes to be sown, and then use a single-sided seamless tape to fix the seed guide grid on the seed filling board.

5. A split tray seeder as claimed in claim 1, characterized in that The bottom leakage plate is 608 mm long and 290 mm wide. The seed leakage holes thereon are 25 mm long and 3.8 mm wide, distributed in a matrix with 96 rows and 10 columns, a column spacing of 28 mm, and a row spacing of 6 mm. One end is provided with a bottom leakage plate spring mounting hole and a sowing handle.

6. A split tray seeder as claimed in claim 5, characterized in that The seed filling plate matching the bottom leakage plate is 1.8 mm thick and is provided with 11 columns of two types of seed filling units, one of which is in the even columns, with a total of 5 columns of 50 seed filling units, and these 50 seed filling units are matched with the 50 holes of the 50-hole seedling tray respectively, and the other is in the odd columns, with a total of 6 columns of 72 seed filling units, and these 72 seed filling units are matched with the 72 holes on the 72-hole seedling tray respectively.

7. A split tray seeder as claimed in claim 6, characterized in that The seed filling units are composed of 4 circular holes, and the diameters of the circular holes are 2.7 mm, 2.5 mm, 2.3 mm, and 2 mm respectively.

8. A split tray seeder as claimed in claim 6, characterized in that The seed guide grid matched with the 50 seed charging units has 11 grid plates and 10 grid slits; the seed guide grid matched with the 72 seed charging units has 13 grid plates and 13 grid slits.

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