Bean sprout seeding production line

Abstract

The present invention discloses a bean sprout sowing production line. A conveyor device for conveying a seeding tray from one end of the base frame to the other end is movably connected to a base frame. The base frame is sequentially provided with an unwinding device, a spraying device A, a covering device, a paper cutting device, a compacting device A, a spraying device B, a seed dropping device, a compacting device B, and a spraying device C. The base frame located on the side of the unwinding device facing away from the spraying device A serves as a seeding tray loading area, and the base frame located on the side of the spraying device C facing away from the compacting device B serves as a seeding tray unloading area. The end of the base frame corresponding to the unwinding device serves as a seeding tray loading end, and the end of the base frame corresponding to the spraying device C serves as a seeding tray unloading end. As can be seen from the above structure, the bean sprout sowing production line of the present invention improves the sowing efficiency of bean sprout production, ensures the number and density of bean sprouts in each seeding tray, facilitates the use of unified production conditions for later production, and thus can ensure the growth quality and uniform bean sprout growth cycle of each seeding tray.

Description

Technical Field

[0001] The invention relates to the technical field of automatic bean sprout sowing, and in particular to a bean sprout sowing production line. Background Art

[0002] There are many varieties of beans, including soybeans, broad beans, peas, mung beans, kidney beans, and adzuki beans. Beans are rich in nutrients, and eating them regularly is beneficial to your health. Traditional Chinese diet emphasizes "the five grains are good for nourishment, while beans are not." They can reduce fat content, boost immunity, and reduce the risk of illness.

[0003] Beans are grown after they germinate into seedlings and produce pods. After sprouting, they can be sold directly as vegetables. Bean sprouts are nutritious, have a crisp texture, and are primarily grown hydroponically, eliminating the need for pesticides. They are a healthy and environmentally friendly product, making them popular with consumers.

[0004] Regarding the cultivation of bean sprouts, you first need to evenly sow the bean seeds in the seedling tray, then place the seedling tray on the seedling rack, and provide it with suitable temperature, humidity, oxygen, carbon dioxide and other conditions to promote its growth.

[0005] Bean sprouts are generally sown in seed trays. When the seed trays are in the conditions required for bean germination, they can be germinated. Then, according to market demand, they can be sold directly or continue to be cultivated into seedlings before transplanting, so that the bean seedlings can continue to grow and produce papery pods, and finally mature for sale. In the above process, the sowing process of beans is basically done by manual sowing, but this method is not suitable for large-scale factory production. Manual drilling and spot sowing are too time-consuming and inefficient.

[0006] The patent with application number 202020417567.X discloses a bean sprout sowing machine, but its structural automation level is not high, and although multiple parallel cavity structures are formed by evenly arranging partitions in the rectangular shell, the beans in the cavity structure will contact each other up and down along the cavity structure due to gravity, which causes the beans in the cavity structure to continuously and uninterruptedly fall onto the seedling tray below, which causes the beans sown on the seedling tray to be densely packed and spread over the seedling tray without any intervals, thereby affecting the germination of the beans, and further resulting in the germination rate of the beans and the later seedling rate. Moreover, even if the above-mentioned technical defects do not exist, if the technical solution is applied to the beans to continue to form seedlings after sowing and germination and to be used for transplanting, a large number of pre-processes and post-processes still need to be completed.

[0007] The applicant and teachers from Jiangsu Vocational College of Electronic Information have jointly developed a bean sprout sowing production line that can be suitable for large-scale sowing; and it is agreed that the patent application right for the production line belongs to the applicant, and the patent application right for related equipment in the production line belongs jointly to the applicant and Jiangsu Vocational College of Electronic Information. Summary of the Invention

[0008] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a bean sprout sowing production line. The bean sprout sowing production line realizes fully automated production of bean sprout sowing, improves the sowing efficiency of bean sprout production, ensures the number and density of bean sprouts in each sowing tray, facilitates the use of unified production conditions for production in the later stage, and further ensures the growth quality of bean sprouts in each sowing tray and a unified bean sprout growth cycle.

[0009] The technical solution adopted by the present invention is:

[0010] A bean sprout sowing production line includes a base frame, on which a conveying device for conveying a sowing tray from one end of the base frame to the other end is movably connected; an unwinding device, a spraying device A, a covering device, a paper cutting device, a compacting device A, a spraying device B, a seed dropping device, a compacting device B and a spraying device C are sequentially arranged on the base frame along the conveying direction of the conveying device; the side of the base frame located on the unwinding device facing away from the spraying device A is a sowing tray loading area, and the side of the base frame located on the spraying device C facing away from the compacting device B is a sowing tray unloading area; the spraying devices A and B spray water, and the spraying device C sprays a bactericidal disinfectant; the end of the base frame corresponding to the unwinding device is the sowing tray loading end, and the end of the base frame corresponding to the spraying device C is the sowing tray unloading end.

[0011] A further improvement scheme of the present invention is that the spray device A, spray device B and spray device C respectively include their own spray pipes, limiting pressure rollers C and liquid collecting tanks, and the two ends of the spray pipe and limiting pressure roller C are respectively connected to the two sides of the base frame through the connecting frame B, the length extension direction of the spray pipe and the length extension direction of the limiting pressure roller C are both perpendicular to the conveying direction of the conveying device, and the height difference between the bottom of the limiting pressure roller C and the top of the conveying device matches the height of the seeding plate, the spray pipe is located above the limiting pressure roller C, the limiting pressure roller C is rotatably connected to the connecting frame B, and along the conveying direction of the conveying device, the spray pipe is located behind the limiting pressure roller C, the liquid collecting tank is fixed to the bottom of the base frame, and the spray pipe and limiting pressure roller C are located within the range of the liquid collecting tank.

[0012] A further improvement of the present invention is that the covering device includes a bucket-shaped soil bin, the bottom of which is fixedly connected to the base frame through an excavation conveying device, and also includes a loosening device arranged at the end of the excavation conveying device, the loosening device is fixed to the base frame, the bottom of the bucket-shaped soil bin is connected to the excavation conveying device, the excavation conveying device sends the soil that falls from the bottom of the bucket-shaped soil bin to the excavation conveying device into the sowing tray that is conveyed to the covering device through the conveying device, the loosening device levels the soil surface that falls into the sowing tray, and the loosening device and the excavation conveying device are synchronously driven by a drive motor C fixed to the base frame.

[0013] A further improvement of the present invention is that the loosening device includes a connecting frame C connected to the base frame, and the connecting frame C is rotatably connected to a loosening roller. The surface of the loosening roller is evenly provided with multiple rows of bristles A, and each row of bristles A is distributed in a "human" shape structure. As the loosening roller rotates, the soil in the passing seeding plate is brushed from the middle to both sides.

[0014] A further improvement of the present invention is that the loosening device further comprises a scraper and brush plate, and the edge of the scraper and brush plate facing the loosening roller is evenly provided with scraper and brush teeth.

[0015] A further improvement of the present invention is that the loosening device also includes a leveling brush plate located on the side of the loosening roller facing away from the excavation conveying device, the two ends of the leveling brush plate are fixed to the two sides of the base frame, and at least one row of bristles B is fixed to the bottom of the leveling brush plate, and each row of bristles B gathers from the two ends to the middle along the conveying direction of the conveying device to form a "human" shaped structure distribution.

[0016] A further improvement of the present invention is that the paper cutting device includes a connecting frame D connected to the base frame, and a pneumatic piston cylinder A is fixedly connected to the connecting frame D. The piston rod A at the bottom of the pneumatic piston cylinder A drives the cutter to move up and down along the connecting frame D.

[0017] A further improvement of the present invention is that the compacting device A and the compacting device B respectively include connecting vertical rods fixed to one edge of the base frame, and also include a lifting adjustment plate that can be adjusted up and down along the connecting vertical rod. The lifting adjustment plate is rotatably connected to the end face of one side facing the conveying device. One side of the roller surface of the soil pressing roller is provided with an arcuate noodle-shaped groove running through the axial ends of the soil pressing roller. The circumferential length of the groove wall on one side of the arcuate noodle-shaped groove along the roller surface of the soil pressing roller to the groove wall on the other side of the arcuate noodle-shaped groove is the same as the inner wall size of the seeding plate along the conveying direction of the conveying device. Etc., the arcuate noodle groove corresponds to the arc length of the roller surface of the soil-pressing roller and the distance between the inner walls of the adjacent ends of the two adjacent seeding plates conveyed by the conveying device, and the roller surface linear speed of the soil-pressing roller is equal to the conveying speed of the seeding plate, and the two axial ends of the soil-pressing roller are respectively matched with the inner walls of the corresponding sides of the seeding plate conveyed along the conveying device, and a driving motor D is fixed on the end face of the lifting and adjusting plate facing away from the conveying device, and the driving motor D is connected to the soil-pressing roller through a transmission shaft connected to the lifting and adjusting plate through rotation, and the transmission shaft is fixed coaxially with the soil-pressing roller.

[0018] A further improvement of the present invention is that the seed dropping device includes a connecting box fixed on both sides of the base frame, the top of the connecting box is connected to and fixed with a bucket-shaped bean bin, and a bean discharging roller is rotatably connected to the connecting box below the bottom of the bucket-shaped bean bin, and the roller surface of the bean discharging roller is evenly distributed with multiple rows of bean discharging grooves arranged parallel to the axis of the bean roller, and a bean dropping guide plate A and a bean dropping guide plate B are fixed to the bottom of the bucket-shaped bean bin and on the side where the bean discharging roller rotates downward and upward respectively, and the bean dropping guide plate A and the bean dropping guide plate B are both inclined in a downward direction from the side where the bean discharging roller is located to the axis position of the bean discharging roller, and the bottom edge of the bean dropping guide plate A is higher than the bottom edge of the bean dropping guide plate B, and an arc-shaped bean discharging guide plate matching the roller surface of the bean discharging roller is also fixed in the connecting box on the side where the bean discharging roller rotates downward.

[0019] A further improvement of the present invention is that a bean-discharging auxiliary guide roller is rotatably connected to the top end of the arc-shaped bean-discharging guide plate in the connecting box, corresponding to the position where the bean-discharging roller rotates into the arc-shaped bean-discharging guide plate. The bean-discharging auxiliary guide roller is arranged parallel to the bean-discharging roller, and the bean-discharging roller and the bean-discharging auxiliary guide roller have the same rotation direction. The spacing between the facing roller surfaces of the bean-discharging auxiliary guide roller and the bean-discharging roller is smaller than the particle size of the bean seeds.

[0020] A further improvement of the present invention is that the roller surface of the bean-discharging roller is evenly distributed with a plurality of annular grooves along the axis of the bean-discharging roller, the groove bottom radius of the annular groove is smaller than the minimum distance between the groove bottom of the bean-discharging trough and the axis of the bean-discharging roller, and a plurality of inserts are fixed in parallel below the bean-discharging roller in the connecting box, the position and thickness of the inserts along the axial direction of the bean-discharging roller respectively match the position and groove width of the annular grooves, and the tops of the inserts are respectively inserted into the bottoms of the corresponding annular grooves.

[0021] A further improvement of the present invention is that one end of the insert facing the arc-shaped bean-discharging guide plate is located below the bottom end of the arc-shaped bean-discharging guide plate corresponding to the position where the bean-discharging roller rotates out of the arc-shaped bean-discharging guide plate, and a bean-discharging gap is provided between the arc-shaped bean-discharging guide plate and the end of the bean-discharging roller that rotates out of the arc-shaped bean-discharging guide plate to form a bean-discharging opening.

[0022] A further improvement of the present invention is that the conveying device includes a plurality of conveying rollers connected to the base frame and rotated in sequence along the conveying direction, and the conveying rollers are all synchronously connected to the driving motor A fixed to the base frame.

[0023] A further improvement of the present invention is that conveying guide side rods are symmetrically fixed to both side edges of the top of the base frame, and the conveying guide side rods are arranged along the conveying direction of the base frame.

[0024] A further improvement of the present invention is that a seed tray dividing device is provided on the base frame at the side of the unwinding device facing away from the spraying device A, and the seed tray dividing device includes a body connected to the base frame, and conveying frames arranged along the conveying direction of the conveying device are symmetrically provided on both sides of the top of the body, and a conveyor belt is rotatably connected between the conveying frames, and the transmission shaft of the conveyor belt is synchronously transmitted with the conveying device of the base frame, and limiting side uprights are symmetrically provided on the top of the conveying frame, and a limiting end upright is fixed between the limiting side uprights and at the end of the limiting side upright facing the unwinding device, and a conveying gap is provided between the bottom of the limiting end upright and the conveyor belt, and the height of the conveying gap is greater than the height of the seed tray and less than the total height of the two stacked seed trays, and a bottom seed tray separating device is provided on the body, corresponding to the back side of the limiting side upright.

[0025] A further improvement of the present invention is that the bottom seeding plate separation device includes a starting pneumatic piston cylinder B fixed to the machine body, and the piston rod B provided at the opposite end of the starting pneumatic piston cylinder B drives the fork rod to move back and forth in a horizontal direction perpendicular to the conveying direction of the conveyor belt, and the fork rod is located above the top surface of the conveyor belt, and the height between the bottom surface of the fork rod and the top surface of the conveyor belt is greater than the height of the seeding plate, and the height between the top surface of the fork rod and the top surface of the conveyor belt is equal to the height between the lower edge of the flange of the bottom second layer of seeding plates stacked on the top surface of the conveyor belt and the top surface of the conveyor belt; when the piston rod B extends out of the pneumatic piston cylinder B to the maximum stroke, the end of the fork rod passes through the limiting side stand on the corresponding side and moves to the range of the flange on the corresponding side of the seeding plate; when the piston rod B retracts the pneumatic piston cylinder B to the maximum stroke, the end of the fork rod retracts to the range of the limiting side stand on the corresponding side or to the outside of the limiting side stand on the corresponding side.

[0026] A further improvement of the present invention is that a soil guide slope is provided at the bottom of the base frame at a position corresponding to the soil covering device, and the bottom end of the soil guide slope is located within the range of the soil holding device.

[0027] A further improvement of the present invention is that an electric control cabinet is fixedly provided on the base frame, which is electrically connected to the unwinding device, spraying device A, soil covering device, paper cutting device, compacting device A, spraying device B, seed dropping device, compacting device B, spraying device C and conveying device, and is used to control the operation of the production line.

[0028] The beneficial effects of the present invention are:

[0029] First, the bean sprout sowing production line of the present invention realizes fully automated production of bean sprout sowing, improves the sowing efficiency of bean sprout production, ensures the number and density of bean sprouts in each sowing tray, facilitates the use of unified production conditions for production in the later stage, and further ensures the growth quality of bean sprouts in each sowing tray and a unified bean sprout growth cycle.

[0030] Second, the bean sprout sowing production line of the present invention lays paper on the surface of the sowing tray through the unwinding device, so that after the sowing tray is sown and the seedlings emerge, the soil material can be quickly and conveniently separated from the sowing tray, avoiding soil residue sticking to the sowing tray and facilitating the reuse of the sowing tray.

[0031] Third, the bean sprout sowing production line of the present invention wets the paper through the action of the spraying device A, thereby making the paper fit the sowing tray.

[0032] Fourthly, the bean sprout sowing production line of the present invention can evenly lay soil in the sowing tray through the soil covering device through the soil covering device, and can also loosen and level the soil to avoid soil lumps in the soil.

[0033] Fifth, the bean sprout sowing production line of the present invention can adjust the unit amount of soil material transmitted to the sowing tray by the soil covering device through the function of the soil amount regulating plate of the soil covering device, thereby adjusting the amount of soil falling into the sowing tray.

[0034] Sixth, the bean sprout sowing production line of the present invention can evenly and stably convey the soil material to the sowing tray passing through the soil covering device through the function of the soil discharge conveyor belt.

[0035] Seventh, the bean sprout sowing production line of the present invention loosens the soil material falling into the sowing tray through the action of the loosening roller, thereby avoiding the presence of lumps in the soil material that affect the subsequent sowing.

[0036] Eighth, the bean sprout sowing production line of the present invention scrapes and brushes the bristles A of the soil loosening roller through the scraping and brushing plate, thereby brushing away the soil between the bristles A after the soil loosening.

[0037] Ninth, in the bean sprout sowing production line of the present invention, the shafts at both ends of the loosening roller extend outward to adjust the vertical holes and are rotatably connected to the connecting end plates. The tops of the connecting end plates are fixed by horizontal top rods, and the horizontal top rods are respectively connected to the placement grooves provided on the top edges of the connecting vertical plates, so that the height of the loosening roller can be adjusted according to different amounts of soil in the sowing tray or according to different loosening requirements.

[0038] Tenth, the bean sprout sowing production line of the present invention, through the action of the soil leveling brush plate, makes the soil in the sowing tray gather from both sides to the middle while leveling the top surface of the soil, and also can prevent the soil from overflowing from both sides of the sowing tray.

[0039] Eleventh, the bean sprout sowing production line of the present invention can conveniently observe the unearthing situation of the unearthing conveyor belt through the observation port provided on the unearthing conveyor device.

[0040] Twelfth, the bean sprout sowing production line of the present invention can keep the sowing tray relatively still in the conveying direction of the sowing tray when cutting the sowing tray through the paper cutting device, thereby ensuring the paper cutting effect of the paper cutting device.

[0041] Thirteenth, the bean sprout sowing production line of the present invention uses the compacting device A to flatten the soil in the sowing tray and compact the soil particles, so that the soil can retain moisture and prevent water from flowing directly and quickly into the bottom layer of the soil, and also facilitates the planting of bean seeds in the soil at a later stage.

[0042] Fourteenth, the bean sprout sowing production line of the present invention uses the spraying device B to evenly moisten the upper layer of soil in the sowing tray.

[0043] Fifteenth, the bean sprout sowing production line of the present invention uses the seed dropping device to make the bean seeds fall evenly on the surface of the soil material passing through the sowing tray, so that the bean seeds can be sown quickly and evenly, improving the sowing efficiency while ensuring the sowing effect.

[0044] 16. The bean sprout sowing production line of the present invention can drop bean seeds into the sowing tray evenly in rows through the bean discharging trough provided by the bean discharging roller, thereby ensuring that the bean seeds in the sowing tray are evenly distributed, which is beneficial to controlling the number of bean sprouts in the sowing tray, facilitating the use of unified production conditions for production in the later stage, and thus ensuring the growth quality of bean sprouts in each sowing tray and a unified bean sprout growth cycle.

[0045] Seventeenth, the bean sprout sowing production line of the present invention can ensure that the bean seeds in the bucket-shaped bean bin can stably fall on the top position of the bean discharging roller through the functions of the bean falling guide plate A and the bean falling guide plate B, so as to facilitate the bean seeds to enter the bean discharging trough of the bean discharging roller.

[0046] 18. The bean sprout sowing production line of the present invention, through the function of the arc-shaped bean-discharging guide plate, can make the bean seeds located in the bean discharging trough pass through the arc-shaped bean-discharging guide plate smoothly and be discharged. The bean seeds located on the surface of the bean discharging roller and not entering the bean discharging roller cannot be discharged, so that the seed dropping device can evenly drop the bean seeds into the sowing tray in rows.

[0047] 19. The bean sprout sowing production line of the present invention uses the function of the bean-discharging auxiliary guide roller to rotate the bean seeds that have not entered the bean discharging trough at the position of the curved bean-discharging guide plate corresponding to the rotation end of the bean-discharging roller, thereby preventing the bean seeds from being stuck between the curved bean-discharging guide plate and the bean-discharging roller.

[0048] 20. The bean sprout sowing production line of the present invention, through the annular groove provided on the bean discharging roller and the insert provided below the bean discharging roller, can make the bean seeds in the bean discharging trough rotate along the arc-shaped bean discharging guide plate to the bottom end, and the bean discharging trough rotates relative to the insert so that the insert pushes the bean seeds in the bean discharging trough out of the bean discharging trough, so that the bean seeds can fall smoothly into the sowing tray, and avoid some bean seeds being stuck in the bean discharging trough and reducing the number of bean seeds in the sowing tray.

[0049] 21. The bean sprout sowing production line of the present invention uses a roller brush plate provided on the bottom edge of the bean falling guide plate B to brush away impurities on the surface of the bean discharging roller and the bean discharging trough, thereby ensuring that the bean discharging roller does not contain any impurities when it rotates into the bottom opening of the bucket-shaped bean silo.

[0050] 22. The bean sprout sowing production line of the present invention uses the compacting device B to press the bean seeds in the sowing tray into the soil material, and at the same time flattens the soil material and compacts the soil particles, thereby ensuring that the bean seeds can grow and germinate normally.

[0051] 23. The bean sprout sowing production line of the present invention, through the action of the spraying device C, further moistens the surface of the soil material sown with bean seeds in the sowing tray, and sterilizes the soil material to ensure normal germination.

[0052] Twenty-four. The bean sprout sowing production line of the present invention can separate the bottom seeding tray from the seeding tray pile each time through the seeding tray separating device, thereby facilitating the transportation of the bottom seeding tray and the subsequent sowing process, and allowing the staff to directly load the stacked seeding trays when loading, thereby improving the seeding tray loading efficiency.

[0053] 25. The bean sprout sowing production line of the present invention limits the stacked sowing trays between the limiting side stands and the limiting end stands through the action of the limiting side stands and the limiting end stands, and forks the second layer of sowing trays at the bottom and separates them from the bottom sowing tray, thereby facilitating the separate transportation of the bottom sowing tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 This is the main schematic diagram of this application.

[0055] Figure 2 This is a three-dimensional enlarged schematic diagram of the bottom seed tray dividing device of the present application.

[0056] Figure 3 This is an enlarged schematic diagram of the main view of the unwinding device, spraying device A, soil covering device and paper cutting device of this application.

[0057] Figure 4 It is a three-dimensional enlarged schematic diagram of the unwinding device, spraying device A, soil covering device and paper cutting device of this application.

[0058] Figure 5 It is a three-dimensional enlarged schematic diagram of the soil loosening device of the soil covering device of the present application.

[0059] Figure 6 It is a three-dimensional enlarged schematic diagram of the compacting device A and the compacting device B of the present application.

[0060] Figure 7 This is a three-dimensional enlarged schematic diagram of the seed dropping device of this application. DETAILED DESCRIPTION

[0061] Combine Figures 1 to 7 It can be seen that the bean sprout sowing production line includes a base frame 1, on which a conveying device for conveying a sowing tray from one end of the base frame 1 to the other end is movably connected. On the base frame 1, an unwinding device 2, a spraying device A3, a covering device 4, a paper cutting device 5, a compacting device A6, a spraying device B7, a seed dropping device 8, a compacting device B9 and a spraying device C10 are sequentially provided along the conveying direction of the conveying device. The base frame 1 is located on the side of the unwinding device 2 facing away from the spraying device A3 as a sowing tray loading area, and the base frame 1 is located on the side of the spraying device C10 facing away from the compacting device B9 as a sowing tray unloading area. The spraying devices A3 and B7 spray water, and the spraying device C10 sprays a bactericidal disinfectant. The end of the base frame 1 corresponding to the unwinding device 2 is the sowing tray loading end, and the end corresponding to the spraying device C10 is the sowing tray unloading end.

[0062] The unwinding device 2 includes connecting frames A fixed on both sides of the base frame 1. At least one horizontally placed unwinding shaft is provided on the top between the connecting frames A, and the unwinding shaft is perpendicular to the conveying direction of the conveying device.

[0063] The spray device A3, spray device B7 and spray device C10 respectively include their own spray pipes 31, limiting pressure rollers C32 and liquid collecting tanks 33. The two ends of the spray pipe 31 and the limiting pressure roller C32 are respectively connected to the two sides of the base frame 1 through the connecting frame B. The length extension direction of the spray pipe 31 and the length extension direction of the limiting pressure roller C32 are both perpendicular to the conveying direction of the conveying device, and the height difference between the bottom of the limiting pressure roller C32 and the top of the conveying device matches the height of the seeding plate. The spray pipe 31 is located above the limiting pressure roller C32, and the limiting pressure roller C32 is rotatably connected to the connecting frame B. The spray pipe 31 is located behind the limiting pressure roller C32 along the conveying direction of the conveying device. The liquid collecting tank 33 is fixed to the bottom of the base frame 1, and the spray pipe 31 and the limiting pressure roller C32 are located within the range of the liquid collecting tank 33.

[0064] The spray pipe 31 of the spray device A3 and the spray pipe 31 of the spray device B7 are connected through a connecting pipe, and the liquid collecting tank 33 of the spray device A3 and the liquid collecting tank 22 of the spray device B7 are also connected to each other, and the water in the liquid collecting tank 33 is pumped into the spray pipe 31 of the spray device A3 and the spray pipe 31 of the spray device B7 respectively through the same pump.

[0065] The covering device 4 includes a bucket-shaped soil bin 40, the bottom of which is fixedly connected to the base frame 1 through an excavation conveying device 41, and also includes a loosening device 42 provided at the end of the excavation conveying device 41, the loosening device 42 is fixed to the base frame 1, and the bottom of the bucket-shaped soil bin 40 is connected to the excavation conveying device 41, the excavation conveying device 41 sends the soil that falls from the bottom of the bucket-shaped soil bin 40 to the excavation conveying device 41 into the sowing tray that is conveyed to the covering device 4 through the conveying device, the loosening device 42 levels the soil surface that falls into the sowing tray, and the loosening device 42 and the excavation conveying device 41 are synchronously driven by a drive motor C410 fixed to the base frame 1.

[0066] The bottom edge of the bucket-shaped soil bin 40 located on the conveying end side of the excavation conveying device 41 is provided with a soil amount adjustment plate 43, and the soil amount adjustment plate 43 is adjustably fixedly connected to the bucket-shaped soil bin 40 through an adjustment rod.

[0067] The unearthing conveying device 41 is rotatably connected with an unearthing conveyor belt 44 , and the two side edges of the unearthing conveyor belt 44 are located within the range of the passing seeding plate, and the drop opening at the bottom of the bucket-shaped soil bin 40 is correspondingly located within the range of the unearthing conveyor belt 44 .

[0068] The side wall of the excavation conveying device 41 is provided with an observation port 420 , and the observation port 420 is located above the end of the excavation conveying belt 44 .

[0069] The loosening device 42 includes a connecting frame C connected to the base frame 1, and the connecting frame C is rotatably connected to a loosening roller 45. The surface of the loosening roller 45 is evenly provided with multiple rows of bristles A, and each row of bristles A is distributed in a "human" shape. As the loosening roller 45 rotates, the soil in the passing seeding plate is brushed from the middle to both sides.

[0070] The loosening device 42 also includes a scraping brush plate 46, and the edge of the scraping brush plate 46 facing the loosening roller 45 is evenly provided with scraping brush teeth. The distance between the scraping brush teeth and the axis of the loosening roller 45 is greater than the radius of the loosening roller 45 and less than the distance between the end of the bristles A facing away from the loosening roller 45 and the axis of the loosening roller 45.

[0071] The shafts at both ends of the loosening roller 45 extend outward from the adjustment vertical holes 450 provided on the connecting frame C and are rotatably connected to the connecting end plates 47. The tops of the connecting end plates 47 are fixedly connected by horizontal push rods 48. The tops of the connecting frame C are symmetrically provided with connecting vertical plates 49 corresponding to the horizontal push rods 48. The top edges of the connecting vertical plates 49 are provided with multiple matching placement grooves 490. The horizontal push rods 48 are respectively placed in different placement grooves 490 to realize the adjustment of the axial height of the loosening roller 45.

[0072] The loosening device 42 also includes a leveling brush plate located on the side of the loosening roller 45 facing away from the excavation conveying device 41. The two ends of the leveling brush plate are fixed to the two sides of the base frame 1. At least one row of bristles B is fixed to the bottom of the leveling brush plate. Each row of bristles B gathers from the two ends to the middle along the conveying direction of the conveying device to form a "human" shaped structure.

[0073] The hardness of the bristles B is less than or equal to the hardness of the bristles A.

[0074] The paper cutting device 5 includes a connecting frame D51 connected to the base frame 1, and a pneumatic piston cylinder A53 is fixedly connected to the connecting frame D51. The piston rod A at the bottom of the pneumatic piston cylinder A53 drives the cutter 52 to move up and down along the connecting frame D51.

[0075] Guide rods 55 are fixed to both side edges of the cutter 52 , and matching guide sleeves A54 are fixed to the connecting frame D51 corresponding to the guide rods 55 . The guide rods 55 move up and down through the guide sleeves A54 .

[0076] Guide cross bars 56 are fixed on both sides of the base frame 1 along the conveying direction of the conveying device of the base frame 1 , and guide sleeves B57 are fixed to the connecting frame D51 , and the guide sleeves B57 move back and forth along the guide cross bars 56 .

[0077] A blade limiting strip 58 is fixed in the base frame 1 just below the cutter 52 , and the setting direction of the blade limiting strip 58 is parallel to the conveying direction of the conveying device.

[0078] Limiting rollers D19 are respectively provided on the base frame 1, in front and rear of the paper cutting device 5 along the conveying direction of the conveying device. The two ends of the limiting roller D19 are rotatably connected to the support rod 190 fixed to the base frame 1. The height difference between the bottom of the limiting roller D19 and the top of the conveying device matches the height of the seeding plate. The distance between the limiting roller D19 and the paper cutting device 5 is smaller than the size of the seeding plate along the conveying direction.

[0079] The compacting device A6 and the compacting device B9 respectively include a connecting rod 20 fixed to the edge of one side of the base frame 1, and also include a lifting adjustment plate 21 that can be adjusted up and down along the connecting rod 20. The lifting adjustment plate 21 is rotatably connected to the end face of one side facing the conveying device with a soil pressing roller 22. One side of the roller surface of the soil pressing roller 22 is provided with an arcuate noodle-shaped groove 23 that passes through the axial ends of the soil pressing roller 22. The circumferential length of the groove wall on one side of the arcuate noodle-shaped groove 23 from the roller surface of the soil pressing roller 22 to the groove wall on the other side of the arcuate noodle-shaped groove 23 is equal to the inner wall size of the seeding plate along the conveying direction of the conveying device. The arcuate noodle groove 23 corresponds to the arc length of the roller surface of the soil-pressing roller 22 and the distance between the inner walls of the adjacent ends of the two adjacent seeding plates transported by the conveying device, and the roller surface linear speed of the soil-pressing roller 22 is equal to the conveying speed of the seeding plates. The two axial ends of the soil-pressing roller 22 are respectively matched with the inner walls of the corresponding sides of the seeding plates transported along the conveying device. A drive motor D is fixed to the end face of the lifting and adjusting plate 21 facing away from the conveying device. The drive motor D is connected to the soil-pressing roller 22 through a transmission shaft 25 connected to the lifting and adjusting plate 21. The transmission shaft 25 is fixed coaxially with the soil-pressing roller 22.

[0080] The lifting adjustment plate 21 is further fixed with a pressing roller brush plate 24 , and the pressing roller brush plate 24 is arranged parallel to the axis of the soil pressing roller 22 .

[0081] One end of the bristles C at the bottom of the pressing roller brush plate 24 facing the soil pressing roller 22 contacts the roller surface of the soil pressing roller 22 .

[0082] A connecting push rod 26 is fixed on the top of the connecting vertical rod 20, and an adjusting screw rod 27 is also rotatably connected between the connecting push rod 26 and the base frame 1. One end of the adjusting screw rod 27 is rotatably connected to the base frame 1 through a bearing, and the other end is rotatably connected to the connecting push rod 26 through a bearing, and extends upward to be fixedly connected to the connecting push rod 26 and the adjusting handwheel 28. The lifting adjustment plate 21 is fixed with a nut pair matching the adjusting screw rod 27, and the lifting adjustment plate 21 is also fixed with a guide sleeve C29 matching the connecting vertical rod 20.

[0083] A limiting pressure roller A15 is provided on the base frame 1 at the side of the compacting device A6 facing the paper cutting device 5, and a limiting pressure roller B16 is provided on the side of the compacting device B9 facing the seed dropping device 8.

[0084] The seed dropping device 8 includes a connecting box 80 fixed on both sides of the base frame 1, and a bucket-shaped bean bin 81 is connected and fixed to the top of the connecting box 80. A bean discharging roller 84 is rotatably connected to the connecting box 80 below the bottom of the bucket-shaped bean bin 81. The roller surface of the bean discharging roller 84 is evenly distributed with multiple rows of bean discharging grooves 85 arranged parallel to the axis of the bean roller 84. A bean dropping guide plate A82 and a bean dropping guide plate B83 are fixed to the bottom of the bucket-shaped bean bin 81 and on the downward rotating side and the upward rotating side of the bean discharging roller 84, respectively. The bean dropping guide plate A82 and the bean dropping guide plate B83 are both inclined in a downward direction from the side where the bean discharging roller 84 is located to the axis position of the bean discharging roller 84. The bottom edge of the bean dropping guide plate A82 is higher than the bottom edge of the bean dropping guide plate B83. An arc-shaped bean discharging guide plate 86 matching the roller surface of the bean discharging roller 84 is also fixed in the connecting box 8 on the downward rotating side of the bean discharging roller 84.

[0085] A cleaning roller brush plate 87 is also fixed to the bottom edge of the bean falling guide plate B83, and the bristles of the cleaning roller brush plate 87 extend to the bottom of the bean outlet trough 85.

[0086] In the connecting box 80, a bean-discharging auxiliary guide roller 88 is rotatably connected to the top end of the arc-shaped bean-discharging guide plate 86, corresponding to the position where the bean-discharging roller 84 rotates into the arc-shaped bean-discharging guide plate 86. The bean-discharging auxiliary guide roller 88 is arranged parallel to the bean-discharging roller 84, and the bean-discharging roller 84 and the bean-discharging auxiliary guide roller 88 have the same rotation direction. The distance between the facing roller surfaces of the bean-discharging auxiliary guide roller 88 and the bean-discharging roller 84 is less than the particle size of the bean seeds.

[0087] The bean-discharging auxiliary guide roller 88 is in transmission connection with the bean-discharging roller 84 .

[0088] The groove depth along the radial direction of the bean discharging roller 84 in the bean discharging trough 5 and the groove width along the circumferential direction of the bean discharging roller 84 at the position where the bean discharging trough 5 is located can only accommodate one bean seed.

[0089] The radial distance between the arc-shaped bean-discharging guide plate 86 and the bean-discharging roller 84 at corresponding positions is smaller than the minimum particle size of the bean seeds.

[0090] The roller surface of the bean-discharging roller 84 is evenly distributed with multiple annular grooves 89 along the axis of the bean-discharging roller 84. The groove bottom radius of the annular groove 89 is smaller than the minimum distance between the groove bottom of the bean-discharging trough 85 and the axis of the bean-discharging roller 84. A plurality of inserts 890 are fixed in parallel below the bean-discharging roller 84 in the connecting box 80. The position and thickness of the inserts 890 along the axial direction of the bean-discharging roller 84 correspond to the position and groove width of the annular grooves 89, and the tops of the inserts 890 are respectively inserted into the bottoms of the corresponding annular grooves 89.

[0091] One end of the insert 890 facing the arcuate bean-discharging guide plate 86 is located below the bottom end of the arcuate bean-discharging guide plate 86 corresponding to the position where the bean-discharging roller 84 rotates out of the arcuate bean-discharging guide plate 86, and a bean-discharging gap is provided between the arcuate bean-discharging guide plate 86 and the end of the bean-discharging roller 84 rotating out of the arcuate bean-discharging guide plate 86 to form a bean-discharging port.

[0092] The bean discharging roller 84 includes a plurality of roller disc units fixed coaxially in sequence. A plurality of bean discharging grooves 85 are evenly arranged along the disc edge of the roller disc unit. An annular gap is provided between two adjacent roller disc units to form an annular groove 89.

[0093] The conveying device includes a plurality of conveying rollers 17 connected to the base frame 1 and rotating in sequence along the conveying direction. The conveying rollers 17 are all synchronously connected to the driving motor A18 fixed to the base frame 1.

[0094] Conveying guide side rods 13 are symmetrically fixed to both side edges of the top of the base frame 1 , and the conveying guide side rods 13 are arranged along the conveying direction of the base frame 1 .

[0095] The conveying roller 17 includes a conveying shaft with two ends respectively connected to two sides of the base frame 1 for rotation, and a plurality of conveying unit roller bodies are evenly distributed on the conveying shaft.

[0096] The base frame 1 is also provided with a seed tray separating device 11 on the side of the unwinding device 2 facing away from the spraying device A3. The seed tray separating device 11 includes a body 110 connected to the base frame 1, and conveying frames 111 arranged along the conveying direction of the conveying device are symmetrically provided on both sides of the top of the body 110. A conveyor belt 112 is rotatably connected between the conveying frames 111, and the transmission shaft of the conveyor belt 112 is synchronously transmitted with the conveying device of the base frame 1. The top of the conveying frame 111 is symmetrically provided with limiting side uprights 113, and a limiting end upright 114 is fixed between the limiting side uprights 113 and at the end of the limiting side upright 113 facing the unwinding device 2. A conveying gap is provided between the bottom of the limiting end upright 114 and the conveyor belt 112, and the height of the conveying gap is greater than the height of the seed tray and less than the total height of the stacked two layers of seed trays. Bottom seed tray separating devices are respectively provided on the body 110 and on the back sides of the corresponding limiting side uprights 113.

[0097] The bottom seed tray separation device includes a starting pneumatic piston cylinder B116 fixed to the body 110, and the piston rod B provided at the opposite end of the starting pneumatic piston cylinder B116 drives the fork rod 115 to move back and forth in the horizontal direction perpendicular to the conveying direction of the conveyor belt 112. The fork rod 115 is located above the top surface of the conveyor belt 112. The height between the bottom surface of the fork rod 115 and the top surface of the conveyor belt 112 is greater than the height of the seed tray, and the height between the top surface of the fork rod 115 and the top surface of the conveyor belt 112 is the same as the height of the seed tray. The height between the lower edge of the flange of the second layer of seeding plates at the bottom of the stacked seeding plates is equal to the top surface of the conveyor belt 112; when the piston rod B extends out of the pneumatic piston cylinder B116 to the maximum stroke, the end of the fork rod 115 passes through the limiting side stand 113 on the corresponding side and moves to the range of the flange on the corresponding side of the seeding plate; when the piston rod B retracts the pneumatic piston cylinder B116 to the maximum stroke, the end of the fork rod 115 retracts to the range of the limiting side stand 113 on the corresponding side or to the outside of the limiting side stand 113 on the corresponding side.

[0098] The end of the piston rod B is connected to the fork rod 115 through a fork rod connecting rod 117, and the fork rod connecting rod 117 is fixed to the piston rod B. The fork rod 115 is an "L"-shaped rod. The bending part of the "L"-shaped rod of the fork rod connecting rod 117 is swingably connected to the fork rod 115 through a torsion spring. The fork rod 115 swings until it contacts and limits the swing limit part of the fork rod connecting rod 117. When the fork rod 115 contacts and limits the swing limit part, one side end rod of the fork rod 115 points between the limiting side frames 113, and the other side end rod of the fork rod 115 points upward. The limiting side frames 113 are respectively provided with a pair of When the fork rod 115 is extended between the two limiting side frames 113 under the action of the piston rod B and contacts the side end rod of the fork rod 115 pointing upward, the side end rod of the fork rod 115 pointing upward is limited by the baffle 118. Due to the continued movement of the piston rod B, the fork rod 115 is driven to continue to extend out of the limiting side frame 113 on the corresponding side under the action of the piston rod B while also rotating around the fork rod connecting rod 117, so that the side end rod originally pointing between the limiting side frames 113 is rotated to point upward, and then the second layer of seeding discs stacked on the top surface of the conveyor belt 112 is lifted upward to separate from the bottom layer of seeding discs on the top surface of the conveyor belt 112.

[0099] Two fork rods 115 are fixed to the ends of the piston rod B of the pneumatic piston cylinder B116, and the fork rods 115 are symmetrically fixed on both sides of the piston rod B. The connecting line of the fork rods 115 is parallel to the conveying direction of the conveyor belt 112, and when the stacked seed trays are limited to the position of the limit end stand 114, the fork rods 115 are located within the range of the side of the seed tray parallel to the conveying direction of the conveyor belt 112.

[0100] A soil guide slope 14 is provided at the bottom of the base frame 1 at a position corresponding to the soil covering device 4 , and the bottom end of the soil guide slope 14 is located within the range of the soil holding device.

[0101] The base frame 1 is also fixed with an electric control cabinet 12 which is electrically connected to the unwinding device 2, the spraying device A3, the soil covering device 4, the paper cutting device 5, the compacting device A6, the spraying device B7, the seed dropping device 8, the compacting device B9, the spraying device C10 and the conveying device, and is used to control the operation of the production line.

[0102] Combine Figures 1 to 7 As shown, the process used in this application is as follows.

[0103] The staff first inserts a paper roll into the unwinding shaft, pre-loads soil into the bucket-shaped soil bin 40, and pre-loads bean seeds into the bucket-shaped bean bin 81. The stacked seed trays are then placed on the seeding loading end of the base frame 1. The stacked seed trays are then transported by the conveyor device of the base frame 1 toward the seed tray separating device 11. When the stacked seed trays reach the seed tray separating device 11, the conveyor belt 112 drives the stacked seed trays along the conveyor frame 111 and the limiting side stand 113 to the position limited by the limited end stand 114, at which point the conveyor belt 112 stops transporting. Then, when the pneumatic piston cylinder B116 receives the signal, the piston rod B of the pneumatic piston cylinder B116 simultaneously drives the fork rod 115 to point to the side end rod between the limiting side stand 113 and extend the side limiting side stand 113 to between the flange of the second layer of seeding disc at the bottom of the stacked seeding disc pile and the flange of the bottom seeding disc. When the fork rod 115 points to the upward side end rod and the baffle 118, the piston rod B continues to move, so that the fork rod 115 extends out of the limiting side stand 113 on the corresponding side and rotates around the fork rod connecting rod 117 until the piston rod B extends out of the pneumatic piston cylinder B116 to the maximum stroke. At this time, the fork rod 115 rotates around the fork rod connecting rod 117 to lift all the seeding discs in the second layer and above at the bottom of the stacked seeding disc pile to separate them from the bottom seeding disc. At this time, the conveyor belt 112 is started again, thereby conveying the sowing tray at the bottom of the sowing tray pile to the position of the next process, and then the conveyor belt 112 stops conveying again, and the piston rod B retracts the pneumatic piston cylinder B116. When the piston rod B retracts the pneumatic piston cylinder B116 to the maximum stroke, the stacked sowing tray pile lifted by the fork rod 115 is separated from the fork rod 115 and falls to the top surface of the conveyor belt 112 for transmission contact; when there is no sowing tray on the conveyor belt 112 of the sowing tray separating device 11, the staff again places the new stacked sowing tray pile on the sowing loading end of the base frame 1 for loading.

[0104] When the seeding tray passes through the conveyor belt 112 and the limit end stand 114 and is transported to the position of the unwinding device 2 through the conveying device, the free end of the paper wound on the unwinding device 2 is laid on the top surface of the seeding tray, and as the seeding tray continues to be transported to the position of the spraying device A3 under the action of the conveying device, the spraying device A3 then sprays the seeding tray passing through the spraying device A3. After spraying by the spraying device A3, the paper laid on the top surface of the seeding tray is moistened and adheres to the surface of the seeding tray. The excess water sprayed by the spraying device A3 falls directly into the liquid collecting tank 33 below, and continues to be pumped into the spraying device A3 through the pump body of the spraying device A3 for spraying.

[0105] After being sprayed by the spraying device A3, the seeding tray is further transported forward by the conveying device through the covering device 4. At this time, the soil in the bucket-shaped soil bin 40 falls onto the soil conveyor belt 42 under the action of gravity and is transported by the soil conveyor belt 42. The angle of the soil amount adjustment plate 43 is adjusted by the adjustment rod to adjust the thickness of the soil conveyed by the soil conveyor belt 42 after passing through the soil amount adjustment plate 43. The soil is transported by the soil conveyor belt 42 and falls into the seeding tray of the covering device 4. The excess soil transported by the soil conveyor belt 42 falls directly on the soil guide slope 14 provided at the bottom of the base frame 1 corresponding to the covering device 4, and is transported to the soil collection device through the soil guide slope 14, so that the staff can put the soil into the bucket-shaped soil bin 40 when the soil in the bucket-shaped soil bin 40 is less. The seeding tray filled with soil is transported forward by the conveying device through the loosening device 42, so that the loosening roller 45 of the loosening device 42 passes through the soil loosening roller 45. The soil on the surface of the seeding plate is turned over and leveled by the multiple rows of bristles A on the surface, thereby ensuring that the soil in the seeding plate is evenly loosened; after the loosening roller 45 sends the soil to the seeding plate, the bristles A are rotated to the position of the scraper plate 46, thereby cleaning out the soil mixed with the bristles A, avoiding the accumulation of soil on the bristles A and affecting the loosening effect of the thickness of the bristles A; and the height between the loosening roller 45 and the conveying device can be adjusted by adjusting the horizontal push rod 48 to be placed in different corresponding placement grooves 490 connecting the vertical plate 49, and then the loosening thickness of the soil in the seeding plate by the loosening roller 45 can be adjusted according to different process requirements; after passing through the loosening roller 45, the seeding plate is conveyed through the leveling brush plate under the action of the conveying device, and the bristles B of the leveling brush plate brush the surface of the soil in the seeding plate evenly and levelly.

[0106] The seeding tray that has passed the loosening device 4 is conveyed to the paper cutting device 5 under the action of the conveying device, and the adjacent seeding trays are connected together by moistened paper. When the position between the two adjacent seeding trays passes the position of the paper cutting device 5, the pneumatic piston cylinder A53 drives the cutter 52 to move downward quickly through the moistened paper between the two adjacent seeding trays and is limited by the blade limiting strip 58. And because the seeding tray continues to be conveyed forward under the conveying of the conveying device while the cutter 52 is cutting the paper, the bottom of the connecting frame D51 moves along the guide cross bar 56 provided on the base 1 through the guide sleeve B57, so that the paper cutting device 5 can remain relatively stationary with the seeding tray in the conveying direction during the paper cutting process, thereby ensuring the paper cutting effect; in addition, the limiting pressure rollers D19 provided on the front and rear sides of the paper cutting device 5 can ensure that when cutting paper, the adjacent seeding trays will not be lifted up due to the cutter pressure when the paper is cut, further ensuring the normal cutting of the paper between the adjacent seeding trays.

[0107] The seed tray that has passed through the paper cutting device 5 is conveyed to the compacting device A6 under the action of the conveyor. The seed tray first passes through the limiting pressure roller A15 and is then conveyed to the soil pressing roller 22. The arcuate strip-shaped groove 23 of the soil pressing roller 22 just rotates past the bottom. At this time, the roller surface just contacts the soil in the seed tray and compacts the soil. When the seed tray just passes through the soil pressing roller 22, the arcuate strip-shaped groove 23 just rotates to the bottom. When the arcuate strip-shaped groove 23 just rotates past the bottom again, the next adjacent seed tray just passes to the bottom of the soil pressing roller 22. Since the linear speed of the soil pressing roller 22 is the same as the conveying speed of the conveyor, the soil pressing roller 22 and the soil being compacted remain relatively stationary in the conveying direction during the compaction process. That is, the roller surface of the soil pressing roller 22 and the soil in the seed tray do not slide relative to each other, causing the soil in the seed tray to become uneven after passing through the soil pressing roller 22. After the soil roller 22 contacts the soil in the seed tray, the roller surface rotates to the position of the roller brush plate 24, and the soil on the roller surface is brushed off by the roller brush plate 24. In addition, the height of the soil roller 22 can be adjusted by adjusting the hand wheel 28 according to the thickness of the soil in the seed tray and the degree of compaction of the soil.

[0108] The seeding tray that has passed through the compacting device A6 is transferred to the spraying device B7 under the action of the conveying device. The working process of the spraying device B7 is the same as that of the spraying device A3, and the soil material in the seeding tray that has passed through is sprayed again to moisten the soil material.

[0109] The seeding tray that has passed through the spraying device B7 is transported to the seeding device 8 by the conveyor. The bean seeds in the bucket-shaped bean hopper 81 fall downward onto the surface of the bean discharging roller 84 through the bean dropping guide plate A82 and the bean dropping guide plate B83 at the bottom. The bean seeds that fall into the bean discharging trough 85 provided on the bean discharging roller 84 pass through the bean discharging auxiliary guide roller 88 under the rotation of the bean discharging roller 84, and then fall downward along the arc-shaped bean discharging guide plate 86 that matches the roller surface of the bean discharging roller 84 to the seeding tray of the seed discharging device 8. The bean seeds that fall onto the surface of the bean discharging roller 84 but do not fall into the bean discharging trough 85 will rotate to the position of the bean discharging auxiliary guide roller 88 under the rotation of the bean discharging roller 84. The rotation of the bean discharging auxiliary guide roller 88 will then move the bean seeds on the surface of the bean discharging roller 84 away from the bean discharging roller 84, preventing the bean seeds on the surface of the bean discharging roller 84 from entering the arc-shaped bean discharging guide plate 86. When the bean seeds in the bean discharging trough 85 leave the bean discharging guide plate 86 under the rotation of the bean discharging roller 84, they just rotate to the position of the insert 890. At this time, the insert 890 extends to the bean discharging trough 85 at the corresponding position, thereby separating the bean seeds in the bean discharging trough 85 from the bean discharging trough 85 and falling downward, thereby achieving that the bean seeds discharged by the bean discharging guide plate 86 and the bean discharging roller 84 fall evenly in rows onto the surface of the soil in the sowing tray; when the bean discharging roller 84 continues to rotate until it is again at the bottom of the bucket-shaped bean bin 81, the roller cleaning brush plate 87 provided at the bottom of the bean falling guide plate B83 brushes the surface of the bean discharging roller 84 to ensure that no debris remains before the bean discharging roller 84 enters the bottom of the bucket-shaped bean bin 81.

[0110] The seeding tray that has passed the seeding device 8 is transported to the position of the compacting device B9 under the action of the conveying device. The working process of the compacting device B9 is the same as that of the compacting device A6, which compacts the soil material with the bean seeds on the surface of the seeding tray, thereby pressing the bean seeds into the soil material.

[0111] After passing through compactor B9, the seed tray is conveyed by the conveyor to sprayer C10. Sprayer C10 operates in the same manner as sprayer A3, spraying the soil in the seed tray again. Sprayer C10 sprays a disinfectant, further moistening the soil and sterilizing any embedded bean seeds.

[0112] After being sprayed by the spraying device C10, the seeding tray is further conveyed to the tail end of the base frame 1 by the conveying device for discharge.

Claims

1. Bean sprout sowing production line, characterized by: The invention comprises a base frame (1), wherein a conveying device for conveying a seeding disc from one end of the base frame (1) to the other end is movably connected to the base frame (1), and an unwinding device (2), a spraying device A (3), a soil covering device (4), a paper cutting device (5), a compacting device A (6), a spraying device B (7), a seed dropping device (8), a compacting device B (9) and a spraying device C (10) are sequentially provided on the base frame (1) along the conveying direction of the conveying device. The base frame (1) is located between the unwinding device ( 2) The side facing away from the spraying device A (3) is the seed tray loading area, and the side of the base frame (1) facing away from the compacting device B (9) on the spraying device C (10) is the seed tray unloading area. The spraying device A (3) and the spraying device B (7) spray water, and the spraying device C (10) sprays a bactericide. The end of the base frame (1) corresponding to the unwinding device (2) is the seed tray loading end, and the end corresponding to the spraying device C (10) is the seed tray unloading end. The seed dropping device (8) comprises a connecting box (80) fixed on both sides of the base frame (1); a bucket-shaped bean bin (81) is connected and fixed to the top of the connecting box (80); a bean discharging roller (84) is rotatably connected to the bottom of the bucket-shaped bean bin (81) in the connecting box (80); a roller surface of the bean discharging roller (84) is evenly distributed with multiple rows of bean discharging grooves (85) arranged parallel to the axis of the bean discharging roller (84); the bottom of the bucket-shaped bean bin (81), the downward rotating side and the upward rotating side of the bean discharging roller (84) are respectively A bean dropping guide plate A (82) and a bean dropping guide plate B (83) are correspondingly fixed, and the bean dropping guide plate A (82) and the bean dropping guide plate B (83) are both inclined in a downward direction from the side where the bean discharging roller (84) is located to the axis position of the bean discharging roller (84), and the bottom edge of the bean dropping guide plate A (82) is higher than the bottom edge of the bean dropping guide plate B (83). An arc-shaped bean discharging guide plate (86) matching the roller surface of the bean discharging roller (84) is also fixed in the connecting box (80) on the side where the bean discharging roller (84) rotates downward; A bean-discharging auxiliary guide roller (88) is rotatably connected to the top end of the arc-shaped bean-discharging guide plate (86) in the connection box (80), corresponding to the position where the bean-discharging roller (84) rotates into the arc-shaped bean-discharging guide plate (86). The bean-discharging auxiliary guide roller (88) is arranged parallel to the bean-discharging roller (84), and the bean-discharging roller (84) and the bean-discharging auxiliary guide roller (88) rotate in the same direction. The distance between the facing roller surfaces of the bean-discharging auxiliary guide roller (88) and the bean-discharging roller (84) is smaller than the particle size of the bean seeds. The roller surface of the bean-discharging roller (84) is uniformly provided with a plurality of annular grooves (89) along the axis of the bean-discharging roller (84); the groove bottom radius of the annular groove (89) is smaller than the minimum distance between the groove bottom of the bean-discharging trough (85) and the axis of the bean-discharging roller (84); a plurality of inserts (890) are fixed in parallel below the bean-discharging roller (84) in the connecting box (80); the position and thickness of the inserts (890) along the axial direction of the bean-discharging roller (84) respectively correspond to the position and groove width of the annular grooves (89); and the tops of the inserts (890) are respectively inserted into the bottoms of the corresponding annular grooves (89); One end of the insert (890) facing the arc-shaped bean-discharging guide plate (86) is located below the bottom end of the arc-shaped bean-discharging guide plate (86) corresponding to the position where the bean-discharging roller (84) rotates out of the arc-shaped bean-discharging guide plate (86), and a bean-discharging gap is provided between the arc-shaped bean-discharging guide plate (86) and the end of the bean-discharging roller (84) rotated out of the arc-shaped bean-discharging guide plate (86), forming a bean-discharging opening.

2. The bean sprout sowing production line according to claim 1, characterized in that: The spray device A (3), the spray device B (7) and the spray device C (10) respectively include their own spray pipes (31), limiting pressure rollers C (32) and liquid collecting tanks (33), and the ends of the spray pipes (31) and the limiting pressure rollers C (32) are respectively connected to the two sides of the base frame (1) through the connecting frame B, and the length extension direction of the spray pipes (31) and the length extension direction of the limiting pressure rollers C (32) are perpendicular to the conveying direction of the conveying device, and the limiting pressure rollers C (3 2) The height difference between the bottom and the top of the conveying device matches the height of the seeding plate, the spray pipe (31) is located above the limiting pressure roller C (32), the limiting pressure roller C (32) is rotatably connected to the connecting frame B, and along the conveying direction of the conveying device, the spray pipe (31) is located at the rear side of the limiting pressure roller C (32), the collecting tank (33) is fixed to the bottom of the base frame (1), and the spray pipe (31) and the limiting pressure roller C (32) are located within the range of the collecting tank (33).

3. The bean sprout sowing production line according to claim 1, characterized in that: The soil covering device (4) includes a bucket-shaped soil bin (40), the bottom of which is fixedly connected to the base frame (1) via an excavation conveying device (41), and further includes a loosening device (42) provided at the end of the excavation conveying device (41), the loosening device (42) being fixed to the base frame (1), the bottom of the bucket-shaped soil bin (40) being connected to the excavation conveying device (41), the excavation conveying device (41) conveying soil falling from the bottom of the bucket-shaped soil bin (40) to the excavation conveying device (41) into a seeding tray conveyed to the soil covering device (4) via the conveying device, the loosening device (42) leveling the soil surface falling into the seeding tray, and the loosening device (42) and the excavation conveying device (41) being synchronously driven and connected via a drive motor C (410) fixed to the base frame (1).

4. The bean sprout sowing production line according to claim 3, characterized in that: The loosening device (42) includes a connecting frame C connected to the base frame (1), the connecting frame C is rotatably connected to a loosening roller (45), the surface of the loosening roller (45) is evenly provided with multiple rows of bristles A, each row of bristles A is distributed in a "human" shape structure, and as the loosening roller (45) rotates, the soil in the seeding tray passing through is brushed from the middle to both sides; The loosening device (42) further comprises a scraping brush plate (46), wherein the edge of the scraping brush plate (46) facing the loosening roller (45) is evenly provided with scraping brush teeth; The loosening device (42) further comprises a soil leveling brush plate located on the side of the loosening roller (45) facing away from the excavation conveying device (41), the two ends of the soil leveling brush plate being fixed to the two sides of the base frame (1), and at least one row of bristles B being fixed to the bottom of the soil leveling brush plate, with each row of bristles B being gathered from the two ends toward the middle along the conveying direction of the conveying device to form a "human" shaped structure.

5. The bean sprout sowing production line according to claim 1, characterized in that: The paper cutting device (5) comprises a connecting frame D (51) connected to a base frame (1), a pneumatic piston cylinder A (53) being fixedly connected to the connecting frame D (51), and a piston rod A at the bottom of the pneumatic piston cylinder A (53) driving the cutter (52) to move up and down along the connecting frame D (51).

6. The bean sprout sowing production line according to claim 1, characterized in that: The compacting device A (6) and the compacting device B (9) respectively include a connecting rod (20) fixed to the edge of one side of the base frame (1), and also include a lifting adjustment plate (21) that can be adjusted up and down along the connecting rod (20), and the lifting adjustment plate (21) is rotatably connected to the end face of one side facing the conveying device with a soil pressing roller (22), and one side of the roller surface of the soil pressing roller (22) is provided with an arcuate noodle groove (23) that passes through the axial ends of the soil pressing roller (22), and the circumferential length of the groove wall of one side of the arcuate noodle groove (23) along the roller surface of the soil pressing roller (22) to the groove wall of the other side of the arcuate noodle groove (23) is the same as the inner wall size of the seeding disc along the conveying direction of the conveying device. The arcuate noodle groove (23) corresponds to the distance between the arc length of the roller surface of the soil pressing roller (22) and the inner walls of the adjacent ends of two adjacent seeding discs conveyed by the conveying device, and the roller surface linear speed of the soil pressing roller (22) is equal to the conveying speed of the seeding disc. The two axial ends of the soil pressing roller (22) are respectively matched with the inner walls of the corresponding sides of the seeding disc conveyed along the conveying device. A driving motor D is fixed to the end surface of the lifting and adjusting plate (21) on the side facing away from the conveying device. The driving motor D is connected to the soil pressing roller (22) by rotating a transmission shaft (25) connected to the lifting and adjusting plate (21). The transmission shaft (25) is fixed coaxially with the soil pressing roller (22).

7. The bean sprout sowing production line according to claim 1, characterized in that: The conveying device comprises a plurality of conveying rollers (17) connected to the base frame (1) and rotating in sequence along the conveying direction, wherein the conveying rollers (17) are all synchronously connected to a driving motor A (18) fixed to the base frame (1); Conveying guide side rods (13) are symmetrically fixed to both side edges of the top of the base frame (1), and the conveying guide side rods (13) are arranged along the conveying direction of the base frame (1).

8. The bean sprout sowing production line according to claim 1, characterized in that: The base frame (1) is provided with a seed tray dividing device (11) on the side of the unwinding device (2) facing away from the spraying device A (3). The seed tray dividing device (11) comprises a body (110) connected to the base frame (1). Both sides of the top of the body (110) are symmetrically provided with conveying racks (111) arranged along the conveying direction of the conveying device. A conveyor belt (112) is rotatably connected between the conveying racks (111). The transmission shaft of the conveyor belt (112) is synchronously driven with the conveying device of the base frame (1). The conveying rack (111) is provided with a transmission shaft (112) and a transmission shaft (112) of the conveying device of the base frame (1). 1) are symmetrically provided with limiting side frames (113) on the top, a limiting end frame (114) is fixed between the limiting side frames (113) and at one end of the limiting side frames (113) facing the unwinding device (2), a transmission gap is provided between the bottom of the limiting end frame (114) and the conveyor belt (112), the height of the transmission gap is greater than the height of the seeding disc and less than the total height of two stacked seeding discs, and a bottom seeding disc separation device is provided on the machine body (110) at the back side corresponding to the limiting side frames (113); The bottom seeding tray separation device includes a starting pneumatic piston cylinder B (116) fixed to the machine body (110), and the piston rod B provided at the opposite ends of the starting pneumatic piston cylinder B (116) drives the fork rod (115) to move back and forth in a horizontal direction perpendicular to the conveying direction of the conveyor belt (112), and the fork rod (115) is located above the top surface of the conveyor belt (112), and the height between the bottom surface of the fork rod (115) and the top surface of the conveyor belt (112) is greater than the height of the seeding tray, and the height between the top surface of the fork rod (115) and the top surface of the conveyor belt (112) is the same as the height between the bottom surface of the fork rod (115) and the top surface of the conveyor belt (112). 2) The height between the lower edge of the flange of the second layer of seeding discs stacked on the top surface and the top surface of the conveyor belt (112) is equal; when the piston rod B extends out of the pneumatic piston cylinder B (116) to the maximum stroke, the end of the fork rod (115) passes through the corresponding side limit stand (113) and moves to the range of the flange on the corresponding side of the seeding disc; when the piston rod B retracts into the pneumatic piston cylinder B (116) to the maximum stroke, the end of the fork rod (115) retracts to the range of the corresponding side limit stand (113) or to the outside of the corresponding side limit stand (113).

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