A vibration separation type rice seed seedling tray precision strip sowing device

Abstract

The utility model relates to seeding device technical field, specifically disclose a vibration separation formula rice seed seedling tray precision strip seeding device, solve the existing seedling production line planting seed quantity is big, uneven seeding, easy to block and so on. The seedling tray precision strip seeding device includes pressure tank device, vibration disc, linear row pipe and support frame, the support frame front row middle part is hinged with pressure tank device, linear row pipe is located in the support frame middle part and is located pressure tank device rear, for the seed of vibration disc row export is introduced into the groove that pressure tank device opened, vibration disc is located linear row pipe top. The utility model discloses through setting up pressure tank device, and is matched with vibration disc and linear row pipe, is favorable to rice seed even seeding to the groove of seedling substrate, realizes seedling tray precision row seeding, reduces seed consumption, improves transplanting quality, increases rice yield. The utility model can be used with the existing seedling assembly line, realizes the mechanization precision seedling of rice.

Description

Technical Field

[0001] This utility model belongs to the technical field of sowing devices, and specifically relates to a vibration-separating rice seed tray precision strip sowing device. Background Technology

[0002] Mechanized rice seedling raising and transplanting is labor-saving, time-saving, and highly efficient, and has been widely used in rice production. Factory-style seedling raising has achieved automatic or semi-automatic operation. Its basic procedure is: substrate filling and leveling, sowing, watering, covering with soil, then transferring to a germination chamber for germination, and finally transferring to a hardening-off nursery (or greenhouse) for seedling raising. The entire process is technically mature, with complete sets of equipment and simple operation. However, a common problem is that due to the disordered distribution of seeds in the seedling trays, the transplanter's claws easily miss some seedlings when picking them up. To ensure that the transplanter's claws can pick up seedlings every time, many people have adopted the method of increasing the sowing density. However, excessively high seed density in the seedling trays intensifies competition among individual seedlings, making it difficult to cultivate strong seedlings. Especially when transplanting is delayed until older seedlings with more than 5 leaves, the seedling quality is poor, reducing transplanting quality, prolonging the greening period, and affecting the final rice yield.

[0003] To address this issue, researchers have collaborated with manufacturers to develop row-seeding seedling raising machinery. Existing row-seeding seedling raising equipment primarily uses grooved seed-distributing wheels for seed distribution, such as the patented "A Rice Row-Seeding Seeder" (CN202617655U). This device uses an outer grooved seed-distributing wheel and a row-seeding positioning device to divide the seeds into multiple equidistant flowing seed strips that fall onto the seedling tray, thus completing the row-seeding process. However, since rice seeds are mostly long and have awns, using an outer grooved seed-distributing wheel for seed distribution is prone to clogging or damaging the rice buds, affecting the seedling yield. Furthermore, the machine is costly and lacks versatility. Utility Model Content

[0004] The purpose of this invention is to provide a vibration-separated rice seed tray precision strip sowing device to solve the problems of large seed consumption, uneven sowing, easy clogging, and easy damage to buds in existing seedling production lines.

[0005] The specific technical solution is as follows: A vibration-separating rice seed tray precision row sowing device, comprising a support frame, characterized in that it further comprises: A grooving device, which is horizontally positioned at the front of the support frame, is used to create grooves in the seedling substrate in the seedling tray. A vibratory plate, which is located on the upper part of the support frame and behind the pressing device, is equipped with a vibratory motor to disperse and discharge the seeds falling into the vibratory plate evenly. A linear guide pipe is provided in the middle of the support frame and between the vibrating plate and the pressing device. The linear guide pipe is used to guide the rice seeds discharged from the vibrating plate into the grooves opened by the pressing device in a linear manner.

[0006] Preferably, the grooving device is an opening roller, which includes a roller body and a support shaft. Both ends of the roller body are rotatably connected to the support frame via the support shaft. The roller body has spaced-apart raised pressure rings. A brush is also installed on the support frame diagonally above the opening roller. The bristles of the brush contact the roller body to clean the seedling substrate adhering to the roller body. During operation, the opening roller can rotate, and as the seedling tray moves, its concave-convex design can press grooves into the seedling tray.

[0007] Preferably, the grooving device is a row-opening rake, which includes a connecting plate and rake teeth. The rake teeth are fixed at intervals on the connecting plate, and both ends of the connecting plate are sway-connected to the support frame via hinges. A spring or rubber band is also provided between the connecting plate and the support frame to accelerate the return of the grooving device. The grooving device is connected to the support frame via hinges and can swing relative to the support frame. When the grooving device touches the edge of the seedling tray, it can automatically lift up, enabling automated sowing and improving sowing efficiency. The fact that both ends of the grooving device are fixed to the support frame via hinges, and that the grooving device can swing up and down, further facilitates row opening.

[0008] Preferably, the grooves created by the grooving device have a diameter of 8-10 mm and a spacing of 15-20 mm.

[0009] Preferably, the vibratory feeder includes a seed guide plate, side plates, and a seed baffle plate. The seed guide plate is elastically connected to the support frame. The seed guide plate is inclined with one end higher than the other, and the seed guide plate is bent near the lower end to form a seed collection platform. The side plates are fixed on both sides of the seed guide plate, and the two ends of the seed baffle plate are respectively installed on the side plates. An opening for seed flow is provided between the lower end of the seed baffle plate and the seed guide plate. During operation, the seeds are discharged from the opening, then enter the seed collection platform of the seed guide plate and spread evenly, and then are evenly discharged into the groove through the linear pipe.

[0010] Preferably, the seed collection platform includes a first zone and a second zone. The first zone is located near the bend of the seed guide plate, and the second zone is located near the end of the seed guide plate. The second zone and the first zone form a step, with the height of the second zone being higher than that of the first zone. Seeds are first collected and arranged neatly in the first zone and then discharged from the second zone.

[0011] Preferably, the device further includes a tray and a support plate. The seed guide plate of the vibrating disc is fixed on the tray. The lower sides of the tray are connected to the support plate via shock-absorbing springs. The two ends of the support plate are detachably fixed to the support frame. The support plate is inclined with a higher rear end and a lower front end. The vibrating disc is also inclined with a higher rear end and a lower front end. The vibration motor is installed on the back of the tray and drives the tray and the vibrating disc to vibrate. The device also includes a seed box, which is installed on the support frame above the vibrating disc. The bottom of the seed box is funnel-shaped, and the bottom outlet is inclined, with the same inclination angle as the seed guide plate of the vibrating disc. There is a space for planting between the bottom of the seed box and the seed guide plate of the vibrating disc.

[0012] Preferably, the linear tube array includes multiple semi-open circular tubes and a horizontal plate. The multiple semi-open circular tubes are tightly arranged and fixed on the horizontal plate. The two ends of the horizontal plate are connected to the support frame. The horizontal plate is inclined from top to bottom towards the inside of the vibrating plate. The semi-open circular tubes are also inclined from top to bottom towards the rear. The upper opening of the semi-open circular tube is larger than the lower opening. Preferably, it also includes a spraying device, wherein the spraying pipe of the spraying device is installed behind the pressure trough device and in front of the linear pipe, and the nozzles of the spraying pipe are spaced apart to spray water into each trough.

[0013] Preferably, the support frame below the vibrating plate is further provided with a limiting spring for restricting the left and right movement of the seedling tray. One end of the limiting spring is fixed to the support frame, and the other end extends to the inner side of the support frame and is elastically connected to the support frame.

[0014] Compared with existing technologies, this utility model has the following beneficial effects: 1. This utility model uses a grooving device to open and compact the seedling substrate in the seedling tray. At the same time, it is equipped with a vibrating plate and linear pipe, which helps to evenly sow rice seeds into the grooves of the seedling substrate, realize precise row sowing in the seedling tray, reduce seed consumption, improve transplanting quality, and increase rice yield.

[0015] 2. The vibrating plate of this invention can replace the original external grooved wheel seed metering device, and is less prone to seed jamming and damage to rice seeds. The vibrating plate includes a seed guide plate, side plates, and a seed baffle plate. The seed guide plate is inclined and its bottom is bent to form a seed collection platform. The side plates are located on both sides of the seed guide plate. The two ends of the seed baffle plate are fixed to the two side plates respectively, and an opening for seed flow is provided between the lower end of the seed baffle plate and the seed guide plate. During operation, seeds are discharged from the opening, then enter the seed collection platform of the seed guide plate and spread evenly, and then are evenly distributed into the grooves through the linear distribution pipe. Furthermore, the seed collection platform includes a stepped first zone and a second zone. The second zone is closer to the end of the seed guide plate and is slightly higher than the first zone. This facilitates the neat arrangement of seeds in the first zone before they fall evenly into the linear distribution pipe from the second zone, achieving uniform row sowing of rice seeds, which is beneficial for cultivating uniform seedlings and for subsequent mechanical transplanting.

[0016] 3. This utility model has a spray pipe installed behind the pressing device and in front of the linear pipe. The nozzles of the spray pipe are spaced apart, spraying water into each groove. This allows for watering before sowing, which is beneficial for rice seed germination. Furthermore, after the spray pipe sprays water in a directional manner before sowing, the seeds will not jump and scatter when they fall on the water surface. As the water penetrates downwards, the seeds adhere to the substrate, resulting in a better linear distribution effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the groove pressing device of this utility model.

[0020] Figure 3 This is a schematic diagram of the pressure groove device in another embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the vibratory feeder of this utility model.

[0022] Figure 5 This is a schematic diagram of the linear pipe structure of this utility model.

[0023] The main reference numerals in the attached figures are explained as follows: 1. Grooving device; 101. Roller body; 1011. Raised pressure ring; 102. Support shaft; 103. Connecting plate; 104. Rake teeth; 2. Support frame; 3. Vibrating plate; 31. Seed guide plate; 311. Seed collection platform; 3111. First zone; 3112. Second zone; 32. Side plate; 33. Seed baffle plate; 4. Linear pipe; 41. Semi-open round pipe; 42. Horizontal plate; 5. Vibrating motor; 6. Support plate; 7. Support plate; 8. Hinge; 9. Brush; 91. Crossbar; 92. Brush bristles; 10. Seed box; 11. Spraying device; 111. Spray pipe; 12. Limiting spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0028] Example 1 like Figure 1 As shown, a vibration-separation type precision row seeding device for rice seedling trays includes a grooving device 1, a vibrating disc 3, a linear feed pipe 4, and a support frame 2. The grooving device 1 is hinged to the lower part of the support frame 2. The linear feed pipe 4 is located in the middle of the support frame 2 and between the grooving device 1 and the vibrating disc 3. The vibrating disc 3 is located above the linear feed pipe 4. The grooving device 1 is used to create grooves in the seedling substrate in the seedling tray. The vibrating disc 3 is equipped with a vibration motor 5, which is used to evenly disperse the seeds falling into the vibrating disc 3 and allow them to flow into the linear feed pipe 4. The linear feed pipe 4 is provided with multiple seed inlets, which are used to guide the rice seeds flowing into the vibrating disc 3 into the grooves of the seedling substrate in the seedling tray.

[0029] In this application, the seedling tray moves forward. That is, furrows are first dug in the seedling substrate of the seedling tray before rice seeds are sown.

[0030] This application utilizes a grooving device 1 to create furrows in the seedling substrate of the seedling tray, which facilitates row-by-row sowing of rice seeds, promotes the cultivation of strong seedlings, and ensures that the seedling claws of the subsequent rice transplanter can evenly pick up the seedlings. Simultaneously, the accompanying vibrating disc 3 and linear feed pipe 4 further facilitate the even and linear sowing of rice seeds into the furrows of the seedling substrate.

[0031] Combination Figure 2The grooving device 1 is an opening roller, which includes a roller body 1 and a support shaft 2. The support shaft 2 is fixed on the central axis at both ends of the roller body 1. A support with a perforation is installed on the support frame. The support shaft 2 passes through the perforation of the support and can rotate relative to the perforation. A bolt or other limiting block can also be set at the outer end of the support shaft 2. The diameter of the limiting block is larger than the diameter of the perforation. The limiting block contacts the support to further prevent the opening roller from moving left and right. The roller body 1 is provided with raised pressure rings 1011 at intervals. The design of the concave and convex roller body 1 can open uniform grooves. In this embodiment, the diameter of the grooves opened by the grooving device is 4mm and the interval is 15mm. In other embodiments, roller bodies 1 with different specifications of raised pressure rings 1011 can be used according to the size of the seedling tray, the sowing density, etc. A brush 9 is also installed on the support frame diagonally above the opening roller. The brush 9 is cylindrical and includes a crossbar 91 mounted on the support frame and bristles 92 fixed around the circumference of the crossbar 91. The crossbar 91 can rotate relative to the support frame, and the bristles 92 of the brush 9 contact the roller body 1 to clean the seedling substrate adhering to the roller body 1.

[0032] Combination Figure 3 In other embodiments, the pressing device 1 includes a connecting plate 103 and rake teeth 104. The connecting plate 103 can be made of steel plate, and the rake teeth 104 are made of steel nails. The rake teeth 104 are evenly spaced and fixed to the connecting plate 103. Specifically, the rake teeth 104 can be fixed to the connecting plate 103 by welding, gluing, or other methods. The two ends of the connecting plate 103 are hinged to the support frame 2 by hinges 8. Using hinges 8 ensures that when the seedling tray moves forward, the rake teeth 104 automatically flip upward when they encounter the edges of the raised parts at both ends of the seedling tray, smoothly passing through the seedling tray, and then automatically returning to their original position under their own weight. Alternatively, a spring or rubber band can be provided between the connecting plate 103 and the support frame 2 to accelerate the return of the rake teeth 104 by the tension of the spring or rubber band.

[0033] Combination Figure 4The system also includes a tray 6 and a support plate 7. The vibrating disc 3 is fixed on the tray 6. The lower sides of the tray 6 are connected to the support plate 7 via shock-absorbing springs. The two ends of the support plate 7 are fixed to the support frame 2 with bolts. The support plate 7 is inclined with a higher rear end and a lower front end. The vibrating disc 3 is also inclined with a higher rear end and a lower front end. In this embodiment, the tray 6 is made of two L-shaped steel plates. The L-shaped steel plates limit the vibration amplitude of the vibrating disc 3, making the overall structure more stable. The support plate 7 is fixed to the support frame 2 with bolts, and the tilt angle of the vibrating disc 3 can be adjusted as needed. The vibration motor 5 is installed on the back of the tray 6 and drives the tray 6 and the vibrating disc 3 to vibrate. The system also includes a seed box 10, which is installed on the support frame 2 above the vibrating disc 3. A seeding space is left between the bottom of the seed box and the seed guide plate of the vibrating disc. Furthermore, the bottom of the seed box 10 is funnel-shaped. In this embodiment, the bottom of the seed box 10 is oriented in a directional direction, and its width is approximately the same as the width of the vibrating plate 3. The bottom outlet is inclined, and its inclination angle is consistent with that of the seed guide plate of the vibrating plate, which is beneficial for the uniform discharge of rice seeds. The seed box 10, in conjunction with the vibrating plate 3, can replace the existing external grooved wheel seed metering device, and is less prone to seed jamming and damage to rice seeds.

[0034] Combination Figure 4The vibrating plate 3 includes a seed guide plate 31, a side plate 32, and a seed baffle plate 33. The seed guide plate 31 is fixed to the support plate and is inclined at one end, with one end higher than the other. The seed guide plate 31 is bent near the lower end to form a seed collection platform 311. The seed collection platform 311 includes a first zone 3111 and a second zone 3112. The first zone 3111 is near the bend of the seed guide plate 31, and the second zone 3112 is near the end of the seed guide plate 31. The second zone 3112 and the first zone 3111 form a step, and the height of the second zone 3112 is higher than that of the first zone 3111. In this embodiment, a polytetrafluoroethylene (PTFE) plate is attached to the second zone 3112. Since the PTFE plate has a certain thickness (about 1 mm), a certain step is formed. At the same time, the PTFE plate can reduce the adhesion of impurities. The stepped seed collection platform 311 design is conducive to the neat arrangement of rice seeds in the first zone 3111. The side plates 32 are fixed to both sides of the seed guide plate 31 to prevent seeds flowing from the seeder from leaking to the sides. The seed baffle plate 33 is mounted on the side plates 32 at both ends. An opening for seed flow is provided between the lower end of the seed baffle plate 33 and the seed guide plate. The baffle prevents seeds from falling directly into the linear distribution pipe or being bounced away without being vibrated and evenly spread by the vibrating plate. Preferably, the baffle is bent on both sides to form a mounting portion with an elongated hole. The side plates 32 have positioning holes, and bolts pass through the elongated holes and positioning holes to detachably fix the baffle and the side plates 32. The tilt angle of the baffle and the size of the opening between the baffle and the seed guide plate 31 can be adjusted according to the seed size, sowing density, etc. During operation, the seeds are discharged from the opening, then enter the first zone 3111 of the seed collection platform 311 of the seed guide plate 31 for even spreading, and then fall from the second zone 3112 into the linear distribution pipe, where they are evenly distributed into the trench.

[0035] Combination Figure 5 The linear seed tray 4 comprises multiple semi-open circular tubes 41, which are fixedly arranged on a horizontal plate 42 by welding or bonding. The horizontal plate 42 is fixed to the frame at both ends and tilted towards the rear of the vibrating plate 3. This design of multiple semi-open circular tubes 41 prevents seed clogging. Preferably, the upper opening of each semi-open circular tube 41 is larger than its lower opening, and the lower opening of each tube corresponds to the groove in the seedling tray, facilitating the introduction of rice seeds into the groove. The semi-open circular tubes 41 are made of stainless steel, a material with sufficient weight to be inserted into substrates of varying hardness, allowing for precise sowing of rice seeds into the substrate grooves. Furthermore, long-term use will not result in rust, which would increase friction between the seeds and the tube wall and prevent seed clogging in the linear seed tray.

[0036] Combination Figure 1It also includes a spraying device 11, which includes a water pump, a water pipe, and a spray pipe 111. The water pipe 111 is connected to a water tank or faucet and, under the action of the water pump, transports water to the spray pipe. The spray pipe 111 is installed behind the pressing device and in front of the linear pipe arrangement. The number and spacing of the nozzles of the spray pipe 111 correspond to the grooves. Each nozzle sprays water directionally into each groove. Seeds will not jump and scatter when they fall on the water surface. As the water penetrates downwards, the seeds adhere to the substrate, resulting in a better linear distribution effect. Sowing after spraying water is also beneficial to seed germination.

[0037] Furthermore, the support frame 2 below the vibrating plate 3 is also provided with a limiting spring 12 for restricting the left and right movement of the seedling tray. One end of the limiting spring 12 is fixed to the support frame 2, and the other end extends to the inner side of the support frame 12 and is elastically connected to the support frame. Specifically, a screw for holding the spring can be installed between the free end of the limiting spring 12 and the support frame 12. The limiting spring 12 has a certain elasticity and can clamp the seedling tray. Preferably, multiple sets of limiting springs 12 can be provided.

[0038] The precision seeding device for seedling trays of this application can be used in conjunction with existing rice seedling production lines and can replace existing seeders. In use, seedling trays containing seedling substrate are placed below the precision seeding device. The seedling trays move through the device via a conveyor belt. During movement, the grooving device 1 creates grooves in the seedling substrate, and a spraying device sprays water directionally into these grooves. Rice seeds from the seed box fall into the vibrating plate 3, and the vibrating motor 5 drives the vibrating plate 3 to vibrate, causing the rice seeds to spread evenly and fall into the linear seeding pipe 4. The linear seeding pipe 4 then guides the rice seeds into the grooves of the seedling substrate, resulting in row-wise seeding. The seeding density can be adjusted by regulating the moving speed of the seedling trays and by adjusting the tilt angle of the vibrating plate 3.

[0039] In summary, this invention, by setting up a grooving device 1 to create furrows in the seedling substrate of the seedling tray, and simultaneously using a vibrating disc 3 and a linear seeding pipe 4, can achieve precise row sowing in the seedling tray, reducing seed consumption, improving transplanting quality, and increasing rice yield. Furthermore, the improved vibrating disc can replace the original external grooved wheel-type seed metering device, and is less prone to seed jamming and damage to rice seeds.

[0040] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A vibration-separating type precision strip seeding device for rice seedling trays, comprising a support frame, characterized in that, Also includes: A grooving device, which is horizontally arranged at the front of the support frame, is used to create grooves in the seedling substrate in the seedling tray. A vibratory plate, which is located on the upper part of the support frame and behind the pressing device, is equipped with a vibratory motor to disperse and discharge the seeds falling into the vibratory plate evenly. A linear guide pipe is provided in the middle of the support frame and between the vibrating plate and the pressing device. The linear guide pipe is used to guide the rice seeds discharged from the vibrating plate into the grooves opened by the pressing device in a linear manner.

2. The precision strip seeding device for seedling trays according to claim 1, characterized in that, The pressing device is an opening roller, which includes a roller body and a support shaft. The two ends of the roller body are rotatably connected to the support frame through the support shaft. The roller body is provided with raised pressing rings at intervals. A brush is also installed on the support frame above the opening roller. The bristles of the brush are in contact with the roller body and are used to clean the seedling substrate adhering to the roller body.

3. The precision strip seeding device for seedling trays according to claim 1, characterized in that, The grooving device is an opening rake, which includes a connecting plate and rake teeth. The rake teeth are fixed at intervals on the connecting plate. The two ends of the connecting plate are swayingly connected to the support frame via hinges. A spring or rubber band is also provided between the connecting plate and the support frame to accelerate the return of the grooving device.

4. The precision strip seeding device for seedling trays according to claim 1, characterized in that, The grooves created by the grooving device have a diameter of 8-10 mm and a spacing of 15-20 mm.

5. The precision strip seeding device for seedling trays according to claim 1, characterized in that, The vibratory feeder includes a seed guide plate, side plates, and a seed baffle plate. The seed guide plate is elastically connected to the support frame. The seed guide plate is inclined with one end higher than the other, and the seed guide plate is bent near the lower end to form a seed collection platform. The side plates are fixed on both sides of the seed guide plate, and the two ends of the seed baffle plate are respectively installed on the side plates. An opening for seed flow is provided between the lower end of the seed baffle plate and the seed guide plate. During operation, the seeds are discharged from the opening, then enter the seed collection platform of the seed guide plate and spread evenly, and then are evenly discharged into the groove through the linear pipe.

6. The precision strip seeding device for seedling trays according to claim 5, characterized in that, The seed collection platform includes a first zone and a second zone. The first zone is located near the bend of the seed guide plate, and the second zone is located near the end of the seed guide plate. The second zone and the first zone form a step, and the height of the second zone is higher than that of the first zone.

7. The precision strip seeding device for seedling trays according to claim 5, characterized in that, It also includes a tray and a support plate. The seed guide plate of the vibrating plate is fixed on the tray. The lower sides of the tray are connected to the support plate through shock-absorbing springs. The two ends of the support plate are detachably fixed to the support frame. The support plate is inclined with the rear end higher than the front end. The vibrating plate is also inclined with the rear end higher than the front end. The vibration motor is installed on the back of the tray and drives the tray and the vibrating plate to vibrate. It also includes a seed box, which is installed on the support frame above the vibrating plate. The bottom of the seed box is funnel-shaped and the bottom outlet is inclined, and the inclination angle is the same as that of the seed guide plate of the vibrating plate. There is a space for planting between the bottom of the seed box and the seed guide plate of the vibrating plate.

8. The precision strip seeding device for seedling trays according to claim 1, characterized in that, The linear tube array includes multiple semi-open circular tubes and a horizontal plate. The multiple semi-open circular tubes are tightly arranged and fixed on the horizontal plate. The two ends of the horizontal plate are connected to the support frame. The horizontal plate is inclined from top to bottom towards the inside of the vibrating plate. The semi-open circular tubes are also inclined from top to bottom and rearward. The upper opening of the semi-open circular tube is larger than the lower opening.

9. The precision strip seeding device for seedling trays according to claim 1, characterized in that, It also includes a spraying device, wherein the spray pipe of the spraying device is installed behind the pressure trough device and in front of the linear pipe, and the nozzles of the spray pipe are spaced apart to spray water into each trough.

10. The precision strip seeding device for seedling trays according to claim 1, characterized in that, The support frame below the vibrating plate is also provided with a limiting spring for restricting the left and right movement of the seedling tray. One end of the limiting spring is fixed to the support frame, and the other end extends to the inside of the support frame and is elastically connected to the support frame.

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