An industrialized tobacco seedling tray

Abstract

The present invention discloses a factory tobacco seedling tray, comprising a frame, characterized in that: a return type seed filling device is arranged on the frame, and the return type seed filling device includes a seed plate fixator, a seed storage device, a fixed seed filling plate and a movable seed discharging plate. The two ends of the frame are respectively rotationally connected to the central axes of the two ends of the seed plate fixator through bearings. The seed plate fixator is driven by a swing power device, and the swing power device is installed on the frame. A seed storage device is arranged on one side of the seed plate fixator. A fixed seed filling plate and a movable seed discharging plate are arranged in the seed plate fixator, and the movable seed discharging plate is arranged below the fixed seed filling plate. The present invention relates to the technical field of tobacco planting equipment. Specifically speaking, it relates to a factory tobacco seedling tray, which realizes the filling and precise placement of single seeds through a circulation and rotation movement mechanism, and has the function of automatically filling seeds through the fixed seed filling plate and the movable seed filling plate.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco planting equipment, and specifically, to a factory tobacco seedling tray. Background Art

[0002] In tobacco cultivation technology, the seedling stage is an important link to ensure the quality and yield of the final tobacco products. The success of seedling raising is directly related to the health status of tobacco plants and their subsequent growth and development. Sowing, as the initial step in the seedling raising process, its accuracy and uniformity are crucial for cultivating strong and consistent seedlings. Currently, in the tobacco planting industry, there are two precision sowing methods commonly used: mechanical direct sowing and transplanting after using a seedling tray for seedling raising. Although the mechanical direct sowing method is favored for its labor saving, cost reduction, and high efficiency, it also exposes defects such as inconsistent seedling growth, low seedling survival rate, and reduced final yield. In contrast, the method of sowing using a

[0003] seedling tray and then transplanting can significantly increase the tobacco yield, while reducing the amount of seeds used and rationally and efficiently utilizing limited land resources.

[0004] In the process of factory tobacco seedling raising, the seed filling device is the core component to achieve automatic sowing. Traditional seed filling devices often have the following problems:

[0005] Low degree of automation: Many seed filling devices still require manual participation and cannot achieve full automation, resulting in low efficiency.

[0006] Low sowing accuracy: Due to the design limitations of the equipment, the distribution of seeds during sowing is uneven, affecting the quality of seedling raising.

[0007] Complicated operation: Some seed filling devices have complicated operations and require professional personnel for operation and maintenance, increasing the usage threshold.

[0008] Seed waste: During the sowing process, due to unreasonable equipment design, it may lead to seed waste, increasing costs.

[0009] Difficult to adjust: Facing seeds of different sizes and shapes, traditional seed filling devices are difficult to quickly adjust and have poor adaptability.

[0010] In order to solve at least some of the above problems and improve the efficiency and quality of factory tobacco seedling raising, it is necessary to develop a new type of return type seed filling device. Summary of the Invention

[0011] The technical problem to be solved by the present invention is to provide a factory tobacco seedling tray, which realizes the filling and precise placement of single seeds through the compound movement of translation and rotation, and has the function of automatically filling seeds through a fixed seed filling plate and a movable seed filling plate.

[0012] An industrialized tobacco seedling tray, comprising a frame, characterized in that: a return-type seed filling device is arranged on the frame, and the return-type seed filling device includes a seed plate fixer, a seed storage device, a fixed seed filling plate and a movable seed discharging plate. The central axes of both ends of the seed plate fixer are rotatably connected to the central axes of both ends of the frame through bearings. The seed plate fixer is driven by a swing power device, and the swing power device is installed on the frame;

[0013] A seed storage device is arranged on one side of the seed plate fixer. A fixed seed filling plate and a movable seed discharging plate are arranged in the seed plate fixer. The movable seed discharging plate is arranged below the fixed seed filling plate. The fixed seed filling plate fixes the inner wall of the seed plate fixer. The movable seed discharging plate is slidably arranged inside the seed plate fixer. The movable seed discharging plate cooperates with a return driving device, and the return driving device is installed on the frame.

[0014] As a further limitation of the technical solution, a plurality of discharge channels are arranged on one side of the seed plate fixer. A limiting plate and a seed groove are arranged on the fixed seed filling plate. A plurality of pairs of inclined limiting plates are fixed on the fixed seed filling plate. Each pair of limiting plates and the fixed seed filling plate form a V-shaped groove. The discharge channel corresponds to the V-shaped groove and is communicated with it. The shapes of the discharge channel and the V-shaped groove are the same. The distance between the upper sides of each pair of limiting plates is greater than the distance between the lower sides. A plurality of uniformly arranged seed grooves are arranged on the fixed seed filling plate. The seed grooves are arranged between each pair of limiting plates.

[0015] As a further limitation of the technical solution, a plurality of circular openings are arranged on the movable seed discharging plate. The diameters of the circular openings and the seed grooves are the same. The circular openings can be coaxial with the seed grooves. A slider is fixed at one end of the movable seed discharging plate. The slider can pass through a chute opened at one end of the seed plate fixer.

[0016] As a further limitation of the technical solution, the seed storage device includes an L-shaped support seat and a plurality of uniformly arranged V-shaped blocks. The V-shaped blocks are uniformly fixed on the cross plate of the L-shaped support seat. One side of the cross plate of the L-shaped support seat is fixedly connected to one side of the seed plate fixer. The cross plate of the L-shaped support seat is inclined. The vertical plate of the L-shaped support seat is perpendicular to the ground. The included angle between the cross plate of the L-shaped support seat and the ground is 8-15 degrees. V-shaped seed storage grooves are formed between adjacent V-shaped blocks. The V-shaped seed storage grooves and the discharge channels are arranged in one-to-one correspondence.

[0017] As a further limitation of the technical solution, a plurality of groups of uniformly arranged circular magnet sheets are arranged on the movable seed discharging plate. The circular magnet sheets are arranged in an array to form a magnet sheet array. By precisely controlling the on-off sequence and time of the circular magnet sheets, the movable seed discharging plate can be pushed or pulled step by step;

[0018] In the initial state, all circular magnet sheets are not energized. First, energize the first group of circular magnet sheets to attract the movable seed plate to move, pushing the movable seed plate to move a short distance. Then, cut off the power supply of the first group of circular magnet sheets to release the movable seed plate. Next, energize the second group of circular magnet sheets to continue pushing the movable seed plate to move;

[0019] Energize and cut off each group of circular magnet sheets in turn to gradually realize the translational movement of the movable seed plate. During the movement, the process of misaligning the circular opening and the seed groove to coaxial is realized. When the circular opening and the seed groove are coaxial, the seeds can fall into the seed groove.

[0020] As a further limitation of this technical solution, the swing power device is a stepping motor. The stepping motor is fixed at one end of the frame, and the output shaft of the stepping motor is fixedly connected to the central axis of one end of the seed plate fixer.

[0021] As a further limitation of this technical solution, the return drive device is an electric cylinder. The telescopic rod of the electric cylinder is arranged corresponding to the slider, and the telescopic rod of the electric cylinder can push the slider to realize the movement of the movable seed plate in the seed plate fixer.

[0022] Compared with the prior art, the advantages and positive effects of the present invention are:

[0023] (1) The swing power device can drive the return-type seed filling device to rotate reciprocally, thereby driving the seed plate fixer, the movable seed plate, and the fixed seed filling plate to swing reciprocally. The movable seed plate can slide inside the seed plate fixer, and the seeds can enter the V-shaped groove through the discharge channel, and then fall into the seed groove during the reciprocating rotation of the fixed seed filling plate.

[0024] (2) The V-shaped seed storage groove is used to store tobacco seeds. The included angle between the two sides of the V-shaped seed storage groove is 20° - 40°, the length of the V-shaped seed storage groove is 45 - 50 mm, the cross-section of the V-shaped seed storage groove is a contraction-type groove, the contraction angle is 10° - 20°, and the notch at the end close to the seed plate fixer is smaller. The seeds are not easy to jump out during the seed filling process of the fixed seed filling plate, and after the seed filling process is completed, the seeds can be recovered into the V-shaped seed storage groove again;

[0025] (3) The movable seed plate and the return drive device are electromagnetically coordinated. The return drive device is an electric cylinder. The return drive device is fixed at the other end of the frame. When the electric cylinder is energized, under the action of the circular magnet sheet, the movable seed plate can drive the slider to move, and the slider can move along the chute until the circular opening and the seed groove are coaxial, so that the seeds fall into the seed groove;

[0026] (4) In the initial position (i.e., when the electric cylinder is not powered on), the circular opening and the seed groove do not correspond. After the seed filling is completed, the return drive device is started. Under the adsorption effect of the electric cylinder, the circular opening and the seed groove are coaxially aligned. At this time, the tobacco seeds will fall into the seedling tray through the circular opening to complete sowing. It can achieve seed filling first, and then collect the excess seeds before seed discharging, avoiding waste of seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0028] Figure 1 is a schematic three-dimensional structure of the present invention Figure 1 ;

[0029] Figure 2 is a schematic partial three-dimensional structure of the present invention Figure 1 ;

[0030] Figure 3 is a schematic partial three-dimensional structure of the present invention Figure 2 ;

[0031] Figure 4 is of the present invention Figure 3 partial enlarged view of area A therein;

[0032] Figure 5 is a schematic partial three-dimensional structure III of the present invention;

[0033] Figure 6 is a schematic partial three-dimensional structure IV of the present invention;

[0034] Figure 7 is a schematic three-dimensional structure of the present invention Figure 2

[0035] Figure 8 is a partial side view of the present invention.

[0036] Figure 9 is a schematic partial three-dimensional structure of the present invention Figure 5 ;

[0037] Figure 10 is of the present invention Figure 10 partial enlarged view of area B therein.

[0038] In the figure: 1. Return-type seed filling device; 101. Seed plate fixer; 1011. Discharge channel; 1012. Slide groove; 102. Seed storage device; 1021. V-shaped block; 1022. L-shaped support seat; 103. Fixed seed filling plate; 1032. Limit plate; 1033. Seed groove; 104. Movable seed discharging plate; 1041. Circular opening; 1042. Slide block; 1043. Circular magnet sheet; 2. Swing power device; 3. Return driving device; 301. Screw; 4. Frame. Detailed implementation mode

[0039] The present invention will be further described below in conjunction with the drawings and implementation modes.

[0040] A factory tobacco seedling tray includes a frame 4, and a return-type seed filling device 1 is arranged on the frame 4. The return-type seed filling device 1 includes a seed plate fixer 101, a seed storage device 102, a fixed seed filling plate 103 and a movable seed discharging plate 104. The centers of both ends of the frame 4 are respectively rotationally connected to the central shafts of both ends of the seed plate fixer 101 through bearings. The seed plate fixer 101 is driven by a swing power device 2, and the swing power device 2 is installed on the frame 4;

[0041] A seed storage device 102 is arranged on one side of the seed plate fixer 101. A fixed seed filling plate 103 and a movable seed discharging plate 104 are arranged inside the seed plate fixer 101. The movable seed discharging plate 104 is arranged below the fixed seed filling plate 103. The fixed seed filling plate 103 fixes the inner wall of the seed plate fixer 101. The movable seed discharging plate 104 is slidably arranged inside the seed plate fixer 101. The movable seed discharging plate 104 cooperates with a return driving device 3, and the return driving device 3 is installed on the frame 4.

[0042] A plurality of discharge channels 1011 are arranged on one side of the seed plate fixer 101. A limit plate 1032 and a seed groove 1033 are arranged on the fixed seed filling plate 103. A plurality of pairs of inclined limit plates 1032 are fixed on the fixed seed filling plate 103. Each pair of limit plates 1032 and the fixed seed filling plate 103 form a V-shaped groove. The discharge channel 1011 corresponds to the V-shaped groove and is communicated with it. The shapes of the discharge channel 1011 and the V-shaped groove are the same. The distance between the upper sides of each pair of limit plates 1032 is greater than the distance between the lower sides. A plurality of uniformly arranged seed grooves 1033 are arranged on the fixed seed filling plate 103. The seed grooves 1033 are arranged between each pair of limit plates 1032.

[0043] The swing power device 2 is a stepping motor.

[0044] Preferably, the seed plate holder 101 is a rectangular frame with a length of 1220 - 1250 mm, a width of 350 - 360 mm, and a thickness of 2 - 3 mm. The discharge channels 1011 on the seed plate holder 101 are arranged along the length direction of the rectangular frame and the number is 15 - 30. The positions and sizes of the ends of the discharge channels 1011 communicating with the V-shaped seed storage grooves are exactly corresponding. The height of the discharge channels 1011 is 20 mm and the width is 8 mm.

[0045] In this embodiment, the swing power device 2 can drive the return type seed filling device 1 to rotate reciprocally, thereby driving the seed plate holder 101, the movable seed discharging plate 104, and the fixed seed filling plate 103 to swing reciprocally. The movable seed discharging plate 104 can slide inside the seed plate holder 101. Seeds can enter the V-shaped groove through the discharge channels 1011 and then fall into the seed groove 1033 during the reciprocal rotation of the fixed seed filling plate 103.

[0046] A number of circular openings 1041 are provided on the movable seed discharging plate 104. The circular openings 1041 and the seed grooves 1033 have the same diameter. The circular openings 1041 can be coaxial with the seed grooves 1033. One end of the movable seed discharging plate 104 is fixed with a slider 1042, and the slider 1042 can pass through a sliding groove 1012 opened at one end of the seed plate holder 101.

[0047] In this embodiment, seeds can fall into the circular openings 1041 when the circular openings 1041 and the seed grooves 1033 are coaxial.

[0048] The seed storage device 102 includes an L-shaped support seat 1022 and a number of uniformly arranged V-shaped blocks 1021. The V-shaped blocks 1021 are uniformly fixed on the horizontal plate of the L-shaped support seat 1022. One side of the horizontal plate of the L-shaped support seat 1022 is fixedly connected to one side of the seed plate holder 101. The horizontal plate of the L-shaped support seat 1022 is inclined, the vertical plate of the L-shaped support seat 1022 is perpendicular to the ground, and the included angle between the horizontal plate of the L-shaped support seat 1022 and the ground is 8 - 15 degrees. V-shaped seed storage grooves are formed between adjacent V-shaped blocks 1021, and the V-shaped seed storage grooves and the discharge channels 1011 are arranged in one-to-one correspondence.

[0049] Preferably, the V-shaped seed storage grooves are used to store tobacco seeds. The included angle between the two sides of the V-shaped seed storage grooves is 20° - 40°. The length of the V-shaped seed storage grooves is 45 - 50 mm. The cross-section of the V-shaped seed storage grooves is a contraction type groove with a contraction angle of 10° - 20°. The groove opening near the end of the seed plate holder 101 is smaller, so that seeds are not easily ejected during the seed discharging by the fixed seed filling plate 103, and after the seed discharging process, the seeds can be recovered into the V-shaped seed storage grooves again.

[0050] A number of evenly arranged circular magnet sheets 1043 are provided on the movable seed metering plate 104. The circular magnet sheets 1043 are arranged in an array to form a magnet sheet array. By precisely controlling the on-off sequence and time of the circular magnet sheets 1043, the movable seed metering plate 104 can be pushed or pulled step by step.

[0051] In the initial state, all the circular magnet sheets 1043 are not powered on. First, the first group of circular magnet sheets 1043 is powered on to attract the movable seed metering plate 104 to move, pushing the movable seed metering plate 104 to move a short distance. Then, the power supply of the first group of circular magnet sheets 1043 is disconnected to release the movable seed metering plate 104. Next, the second group of circular magnet sheets 1043 is powered on to continue pushing the movable seed metering plate 104 to move.

[0052] The on-off of each group of circular magnet sheets 1043 is carried out in sequence to gradually realize the translational movement of the movable seed metering plate 104. During the movement, the process of misaligning the circular opening 1041 and the seed groove 1033 to the coaxial position is realized. When the circular opening 1041 and the seed groove 1033 are coaxial, the seeds can fall into the seed groove 1033.

[0053] Furthermore, the circular magnet sheets 1043 are electrically connected to a power supply and a switch, and the movable seed metering plate 104 is made of a magnetic material.

[0054] The swing power device 2 is a stepping motor. The stepping motor is fixed at one end of the frame 4, and the output shaft of the stepping motor is fixedly connected to the central axis at one end of the seed plate fixer 101.

[0055] As Figure 9 and Figure 10 shown, the return drive device 3 is an electric cylinder. The telescopic rod of the electric cylinder is arranged corresponding to the slider 1402. The telescopic rod of the electric cylinder can push the slider 1402 to realize the movement of the movable seed metering plate 104 within the seed plate fixer 101.

[0056] An abutting plate is fixed to the outer end of the slider 1402. The abutting plate can contact the telescopic rod of the electric cylinder. When the telescopic rod of the electric cylinder extends, it is pushed by the telescopic rod, thereby driving the movable seed metering plate 104 to move, causing the movable seed metering plate 104 to slide within the chute of the seed plate fixer 101 and pushing it back to the initial position.

[0057] Furthermore, in the state where the circular magnet sheets 1043 are not powered on, the circular opening 1041 of the movable seed metering plate 104 and the seed groove 1033 are not coaxial. Each group of circular magnet sheets 1043 is connected in series, and each group of circular magnet sheets 1043 is respectively connected to a power switch. The power switch is connected to a power supply (the power supply and the power switch are prior arts and will not be elaborated here and are not shown in the figure).

[0058] In the initial position, the circular opening 1041 and the seed groove 1033 do not correspond. To achieve the translational movement of the movable seed discharging plate 104, a plurality of circular magnet sheets 1043 are evenly arranged below the movable seed discharging plate 104 to form an electromagnet array. By precisely controlling the energization and de-energization sequence and time of the circular magnet sheets 1043, the movable seed discharging plate 104 is pushed or pulled step by step. In the initial state, all the circular magnet sheets 1043 are not energized. First, the first group of circular magnet sheets 1043 is energized to attract the movable seed discharging plate 104 and push the movable seed discharging plate 104 to move a short distance. Then, the power supply of the first group of circular magnet sheets 1043 is disconnected to release the movable seed discharging plate 104. Next, the second group of circular magnet sheets 1043 is energized to continue pushing the movable seed discharging plate 104 to move. The circular magnet sheets 1043 of each group are energized and de-energized in turn to gradually achieve the translational movement of the movable seed discharging plate 104 until the circular opening 1041 and the seed groove 1033 are coaxial. At this time, the tobacco seeds will fall into the seedling tray through the circular opening 1041 to complete sowing. Finally, when sowing is completed, the return drive device is started. Under the action of the electric cylinder, the movable seed discharging plate 104 is driven to move. The movable seed discharging plate 104 drives the slider 1042 to move along the chute 1012, so that the movable seed discharging plate 104 returns to its original position.

[0059] Further, the diameter of each of the seed grooves 1033 and the circular openings 1041 is 1.2 mm, so that only 1 tobacco seed can be filled into each of them.

[0060] The movable seed discharging plate 104 is provided with 3 columns of holes with a diameter of 5 mm for installing the circular magnet sheets 1043, the hole pitch is 150 mm, and 8 columns of the circular openings 1041 with a diameter of 1.2 mm are provided, and the pitch of the circular openings 1041 is 45 - 55 mm.

[0061] The cross-section of the V-shaped seed storage groove formed between each pair of limiting plates 1032 on the fixed seed filling plate 103 is exactly the same as the cross-section of the discharge channel 1011.

[0062] In use, a tobacco seedling tray is arranged under the seed plate holder 101, and seeds are placed in the V-shaped seed storage groove of the seed storage device 102. The return type seed filling device 11 is driven by the swing power device 2 to swing reciprocally and tilt. When the return type seed filling device 1 tilts, the tobacco seeds in the V-shaped seed storage groove of the seed storage device 102 flow out, pass through the discharge channel 1011, and enter the V-shaped groove formed by the limiting plate 1032. The seeds move left and right in the V-shaped groove of the fixed seed filling plate 103. When the seed grooves 1033 on the fixed seed filling plate 104304 are filled with tobacco seeds, the seed filling is completed. After the seed filling is completed, the fixed seed filling plate 103 tilts in the reverse direction driven by the swing power device 2, and transports the seeds that have not entered the fixed seed filling plate 103 in the reverse direction and stores them in the seed storage device 102. Then, the first group of circular magnet sheets 1043 is powered on to attract the movable seed discharging plate 104 and push the movable seed discharging plate 104 to move a short distance; then the power supply of the first group of circular magnet sheets 1043 is disconnected to release the movable seed discharging plate 104; then the second group of circular magnet sheets 1043 is powered on to continue pushing the movable seed discharging plate 104 to move. Each group of circular magnet sheets 1043 is powered on and off in turn to gradually realize the translational movement of the movable seed discharging plate 104 until the circular opening 1041 and the seed groove 1033 are coaxially aligned. At this time, the tobacco seeds will fall into the seedling tray through the circular opening 1041 to complete sowing. Finally, when the sowing is completed, the return driving device is started, and under the action of the electric cylinder, the movable seed discharging plate 104 is driven to move. The movable seed discharging plate 104 drives the slider 1042 to move along the sliding groove 1012, so that the movable seed discharging plate 104 returns to its original position.

[0063] The specific embodiments of the present invention disclosed above are only for illustration. However, the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An industrialized tobacco seedling tray, comprising a frame (4), characterized in that: A return-type seed filling device (1) is provided on the frame (4). The return-type seed filling device (1) includes a seed plate holder (101), a seed storage device (102), a fixed seed filling plate (103), and a movable seed discharging plate (104). The centers of both ends of the frame (4) are rotatably connected to the central axes of both ends of the seed plate holder (101) through bearings. The seed plate holder (101) is driven by a swing power device (2), and the swing power device (2) is installed on the frame (4); A seed storage device (102) is provided on one side of the seed plate holder (101). A fixed seed filling plate (103) and a movable seed discharging plate (104) are provided inside the seed plate holder (101). The movable seed discharging plate (104) is arranged below the fixed seed filling plate (103). The fixed seed filling plate (103) fixes the inner wall of the seed plate holder (101). The movable seed discharging plate (104) is slidably arranged inside the seed plate holder (101). The movable seed discharging plate (104) cooperates with a return driving device (3), and the return driving device (3) is installed on the frame (4); A number of discharge channels (1011) are provided on one side of the seed plate holder (101). A limiting plate (1032) and a seed groove (1033) are provided on the fixed seed filling plate (103). A number of pairs of inclined limiting plates (1032) are fixed on the fixed seed filling plate (103). Each pair of the limiting plates (1032) and the fixed seed filling plate (103) form a V-shaped groove. The discharge channel corresponds to and communicates with the V-shaped groove. The shapes of the discharge channel and the V-shaped groove are the same. The distance between the upper sides of each pair of the limiting plates (1032) is greater than the distance between the lower sides. A number of uniformly arranged seed grooves (1033) are provided on the fixed seed filling plate (103). The seed grooves (1033) are arranged between each pair of the limiting plates (1032); A number of circular openings (1041) are provided on the movable seed discharging plate (104). The circular openings (1041) and the seed grooves (1033) have the same diameter. The circular openings (1041) can be coaxial with the seed grooves (1033). A slider (1042) is fixed at one end of the movable seed discharging plate (104). The slider (1042) can pass through a chute (1012) provided at one end of the seed plate holder (101); The seed storage device (102) includes an L-shaped support base (1022) and a number of uniformly arranged V-shaped blocks (1021). The V-shaped blocks (1021) are uniformly fixed on the horizontal plate of the L-shaped support base (1022). One side of the horizontal plate of the L-shaped support base (1022) is fixedly connected to one side of the seed plate fixer (101). The horizontal plate of the L-shaped support base (1022) is inclined, the vertical plate of the L-shaped support base (1022) is perpendicular to the ground, and the angle between the horizontal plate of the L-shaped support base (1022) and the ground is 8 - 15 degrees. V-shaped seed storage grooves are formed between adjacent V-shaped blocks (1021), and the V-shaped seed storage grooves are arranged in one-to-one correspondence with the discharge channels (1011). A number of groups of uniformly arranged circular magnet sheets (1043) are provided on the movable seed discharging plate (104). The circular magnet sheets (1043) are arranged in an array to form a magnet sheet array. By precisely controlling the on-off sequence and time of the circular magnet sheets (1043), the movable seed discharging plate (104) can be pushed or pulled step by step. In the initial state, all the circular magnet sheets (1043) are not powered on. First, the first group of circular magnet sheets (1043) is powered on to attract the movable seed discharging plate (104) to move and push the movable seed discharging plate (104) to move a short distance. Then, the power supply of the first group of circular magnet sheets (1043) is disconnected to release the movable seed discharging plate (104). Next, the second group of circular magnet sheets (1043) is powered on to continue pushing the movable seed discharging plate (104) to move. Each group of circular magnet sheets (1043) is sequentially turned on and off to gradually realize the translational movement of the movable seed discharging plate (104). During the movement, the process of misaligning the circular opening (1041) and the seed groove (1033) to coaxial is realized. When the circular opening (1041) and the seed groove (1033) are coaxial, the seeds can fall into the seed groove (1033).

2. The industrialized tobacco seedling tray according to claim 1, characterized in that: The swing power device (2) is a stepping motor. The stepping motor is fixed at one end of the frame (4), and the output shaft of the stepping motor is fixedly connected to the central axis of one end of the seed plate fixer (101).

3. The industrialized tobacco seedling tray according to claim 2, wherein: The return drive device (3) is an electric cylinder. The telescopic rod of the electric cylinder is arranged corresponding to the slider (1402), and the telescopic rod of the electric cylinder can push the slider (1402) to realize the movement of the movable seed discharging plate (104) within the seed plate fixer (101).

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