Seed falling device of bean sprout sowing production line

Abstract

The utility model discloses a seed falling device of a bean sprout sowing production line, the top of a connecting box is communicated and fixed with a hopper-shaped bean bin, a bean outlet roller is rotatably connected in the connecting box and below the bottom opening of the hopper-shaped bean bin, and a plurality of rows of bean discharging grooves are uniformly distributed on the roller surface of the bean outlet roller; a bean falling guide plate A and a bean falling guide plate B are correspondingly arranged at the bottom opening of the hopper-shaped bean bin and located on the downward rotating side and the upward rotating side of the bean outlet roller respectively, the bean falling guide plate A and the bean falling guide plate B incline towards the axis of the bean outlet roller from the side where the bean outlet roller is located in the downward direction, and the bottom edge of the bean falling guide plate A is higher than the bottom edge of the bean falling guide plate B; an arc-shaped bean discharging guide plate matched with the roller face of the bean discharging roller is further fixed to the side, rotating downwards, of the bean discharging roller in the connecting box. According to the structure, the seed falling device of the bean sprout sowing production line enables bean seeds to uniformly fall on the surface of soil passing through the sowing disc, so that the bean seeds can be rapidly and uniformly sown, the sowing efficiency is improved, and meanwhile, the sowing effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic bean sprout sowing, in particular to a seed dropping device for a bean sprout sowing production line. Background Art

[0002] There are many types of beans, including soybeans, broad beans, peas, mung beans, kidney beans, adzuki beans, etc. Beans are rich in nutrients, and eating beans regularly is good for the body. my country's traditional diet emphasizes "grains are good for nourishment, but beans are bad". It can reduce fat content, increase immunity, and reduce the chance of illness.

[0003] The cultivation of beans is done by germinating into seedlings and then forming pods. After the beans germinate into bean sprouts, they can be sold directly as vegetables. Bean sprouts are rich in nutrients, have a crisp taste, and are basically hydroponically grown without the need for spraying pesticides. They are green and healthy and are deeply loved by consumers.

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

[0005] Bean sprouts are generally sown in seed trays, which can germinate under the conditions required for bean germination, and then directly sold according to market demand or continue to be cultivated to form seedlings for transplanting, so as to facilitate the continued growth of bean seedlings and produce papery bean pods before final maturity and 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 row sowing and spot sowing are too time-consuming and inefficient.

[0006] The patent with application number 202020417567.X discloses a bean sprout seeder, but its structural automation level is not high. Although a plurality of parallel cavity structures are formed by evenly arranging partitions in the rectangular shell, the beans in the cavity structure will contact the upper and lower parts of the cavity structure in turn due to gravity, which causes the beans in the cavity structure to continuously and uninterruptedly fall onto the seedling tray below. As a result, the beans sown on the seedling tray are densely packed and spread all over the seedling tray without any intervals, thereby affecting the germination of the beans, and then causing the germination rate of the beans and the later seedling rate.

[0007] The present application is a seed dropping device which can be applied to a bean sprout sowing production line for large-scale sowing. Summary of the invention

[0008] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a seed dropping device for a bean sprout sowing production line. Through the action of the seed dropping device, the soil surface of the passing sowing plate is evenly dropped onto the bean seeds, so that the bean seeds can be sown quickly and evenly, thereby improving the sowing efficiency and ensuring the sowing effect.

[0009] The technical solution adopted by the utility model is:

[0010] The seed dropping device of the bean sprout sowing production line comprises a connection box fixed on both sides of a base frame of the bean sprout sowing production line, the top of the connection box is connected and fixed with a bucket-shaped bean bin, a bean outlet roller is rotatably connected to the connection box and located below the bottom of the bucket-shaped bean bin, a roller surface of the bean outlet roller is evenly distributed with multiple rows of bean outlet grooves arranged parallel to the axis of the bean roller, a bean drop guide plate A and a bean drop guide plate B are respectively fixed to the bottom of the bucket-shaped bean bin and the side where the bean outlet roller rotates downward and the side where the bean outlet roller rotates upward, the bean drop guide plate A and the bean drop guide plate B are both inclined in a downward direction from the side where the bean outlet roller is located to the axis position of the bean outlet roller, the bottom edge of the bean drop guide plate A is higher than the bottom edge of the bean drop guide plate B, and an arc-shaped bean outlet guide plate matching the roller surface of the bean outlet roller is also fixed to the side where the bean outlet roller rotates downward in the connection box.

[0011] A further improvement of the present invention is that a cleaning roller brush plate is fixed to the bottom edge of the bean-falling guide plate B, and the bristles of the cleaning roller brush plate extend to the bottom of the bean outlet trough.

[0012] A further improvement of the utility model 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 turns into the arc-shaped bean-discharging guide plate, and the bean-discharging auxiliary guide roller is arranged in parallel with the bean-discharging roller, and the bean-discharging roller and the bean-discharging auxiliary guide roller have the same rotation direction.

[0013] A further improvement of the utility model is that the distance 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.

[0014] A further improvement of the utility model is that the bean-discharging auxiliary guide roller is drivingly connected to the bean-discharging roller.

[0015] A further improvement of the present invention is that the groove depth along the radial direction of the bean discharging roller in the bean discharging trough and the groove width along the circumferential direction of the bean discharging roller at the position of the bean discharging trough can only accommodate one bean seed.

[0016] A further improvement of the utility model is that the radial spacing between the arc-shaped bean-discharging guide plate and the bean-discharging roller at corresponding positions is smaller than the minimum particle size of the bean seeds.

[0017] A further improvement of the utility model is that a roller surface of the bean-discharging roller is evenly distributed with a plurality of annular grooves along the axis of the bean-discharging roller, a groove bottom radius of the annular groove is smaller than a minimum distance between the groove bottom of the bean-discharging groove and the axis of the bean-discharging roller, 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 correspond to 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.

[0018] A further improvement of the utility model is that one end of the insert facing the arcuate bean-discharging guide plate is located below the bottom end of the arcuate bean-discharging guide plate corresponding to the position where the bean-discharging roller rotates out of the arcuate bean-discharging guide plate, and a bean-discharging gap is provided between the arcuate bean-discharging guide plate and one end of the bean-discharging roller rotating out of the arcuate bean-discharging guide plate to form a bean-discharging opening.

[0019] A further improvement of the utility model is that the bean discharging roller comprises a plurality of roller disc units which are coaxially fixed in sequence, a plurality of bean discharging grooves are evenly arranged on the disc edge of the roller disc unit, and an annular gap is arranged between two adjacent roller disc units to form an annular groove.

[0020] The beneficial effects of the utility model are:

[0021] First, the seed dropping device of the bean sprout sowing production line of the utility model can make the bean seeds fall evenly on the surface of the soil material passing through the sowing plate through the seed dropping device, so that the bean seeds can be sown quickly and evenly, improving the sowing efficiency while ensuring the sowing effect.

[0022] Second, the seed dropping device of the bean sprout sowing production line of the utility model can drop the bean seeds into the sowing tray row by row evenly 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 control the number of bean sprouts in the sowing tray, and is convenient for the later stage to adopt unified production conditions for production, thereby ensuring the growth quality of the bean sprouts in each sowing tray and a unified bean sprout growth cycle.

[0023] Third, the seed dropping device of the bean sprout sowing production line of the utility model can ensure that the bean seeds in the bucket-shaped bean bin can stably fall on the top position of the bean output roller through the functions of the bean dropping guide plate A and the bean dropping guide plate B, so that the bean seeds can enter the bean output groove of the bean output roller easily.

[0024] Fourthly, the seed dropping device of the bean sprout sowing production line of the utility model can make the bean seeds in the bean discharging trough pass through the arc-shaped bean discharging guide plate smoothly and be discharged, while the bean seeds 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.

[0025] Fifth, the seed dropping device of the bean sprout sowing production line of the utility model, through the action of the bean-discharging auxiliary guide roller, turns away the bean seeds that have not entered the bean-discharging trough and are located at the position of the arc-shaped bean-discharging guide plate corresponding to the turning-in end of the bean-discharging roller, thereby preventing the bean seeds from being stuck between the arc-shaped bean-discharging guide plate and the bean-discharging roller.

[0026] Sixth, the seed dropping device of the bean sprout sowing production line of the utility model, 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 to the bottom along the arc-shaped bean discharging guide plate, and the relative rotation of the bean discharging trough with respect to the insert causes the insert to push the bean seeds in the bean discharging trough out of the bean discharging trough, so that the bean seeds can fall into the sowing tray smoothly, avoiding that some bean seeds are stuck in the bean discharging trough and causing the number of bean seeds in the sowing tray to be reduced.

[0027] Seventh, the seed dropping device of the bean sprout sowing production line of the utility model brushes away impurities on the surface of the bean discharging roller and the bean discharging trough through the roller brush plate provided at the bottom edge of the bean dropping guide plate B, thereby ensuring that the bean discharging roller does not contain any impurities when it rotates into the bottom of the bucket-shaped bean bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is the main schematic diagram of the present application.

[0029] Figure 2 It is a three-dimensional enlarged schematic diagram of the bottom seed tray dividing device of the present application.

[0030] Figure 3 It is an enlarged schematic diagram of the front view of the unwinding device, the spraying device A, the soil covering device and the paper cutting device of the present application.

[0031] 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 the present application.

[0032] Figure 5 It is a three-dimensional enlarged schematic diagram of the soil loosening device of the soil covering device of the present application.

[0033] Figure 6 It is a three-dimensional enlarged schematic diagram of the compaction device A and the compaction device B of the present application.

[0034] Figure 7 It is a three-dimensional enlarged schematic diagram of the seed placement device of the present application. DETAILED DESCRIPTION

[0035] like Figure 7It can be seen that the seed dropping device of the bean sprout sowing production line includes a connection box 80 fixed on both sides of the base frame 1 of the bean sprout sowing production line, the top of the connection box 80 is connected and fixed with a bucket-shaped bean bin 81, and a bean discharging roller 84 is rotatably connected in the connection box 80 and located 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. The bottom of the bucket-shaped bean bin 81, the side where the bean discharging roller 84 rotates downward and the side where the bean discharging roller 84 rotates downward are connected. A bean-dropping guide plate A82 and a bean-dropping guide plate B83 are fixed to the upper rotating side respectively, and 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 axial position of the bean-discharging roller 84, and 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-dropping guide plate 86 matching the roller surface of the bean-discharging roller 84 is also fixed in the connecting box 80 and located on the side where the bean-discharging roller 84 rotates downward.

[0036] 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.

[0037] In the connection 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.

[0038] 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.

[0039] The bean-discharging auxiliary guide roller 88 is transmission-connected to the bean-discharging roller 84 .

[0040] The groove depth dimension in the bean discharging groove 85 along the radial direction of the bean discharging roller 84 and the groove width dimension in the circumferential direction of the bean discharging roller 84 at the position where the bean discharging groove 85 is located can only accommodate one bean seed.

[0041] 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.

[0042] The roller surface of the bean-discharging roller 84 is evenly distributed with a plurality of annular grooves 89 along the axis of the bean-discharging roller 84, and the groove bottom radius of the annular groove 89 is smaller than the minimum distance between the groove bottom of the bean-discharging groove 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, and 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 groove 89, respectively, and the tops of the inserts 890 are respectively inserted into the bottoms of the corresponding annular grooves 89.

[0043] 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.

[0044] The bean discharging roller 84 includes a plurality of roller disc units coaxially fixed in sequence, a plurality of bean discharging grooves 85 are evenly arranged along the disc edge of the roller disc unit, and an annular gap is arranged between two adjacent roller disc units to form an annular groove 89.

[0045] Combination Figure 1 to Figure 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, and on the base frame 1, along the conveying direction of the conveying device, an unwinding device 2, a spraying device A3, a soil 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 arranged, 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, 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, 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.

[0046] The unwinding device 2 includes connecting frames A fixed on both sides of the base frame 1, and 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.

[0047] The spray device A3, the spray device B7 and the 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 on the rear side of 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.

[0048] 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.

[0049] 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 arranged at the end of the excavation conveying device 41, the loosening device 42 is fixed to the base frame 1, 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 and connected through a driving motor C410 fixed to the base frame 1.

[0050] The bottom edge of the bucket-shaped soil bin 40 located at the conveying end of the excavation conveying device 41 is provided with a soil volume adjustment plate 43, and the soil volume adjustment plate 43 is adjustably fixedly connected to the bucket-shaped soil bin 40 through an adjustment rod.

[0051] The unearthed soil conveying device 41 is rotatably connected with an unearthed soil conveying belt 44 . The two side edges of the unearthed soil conveying belt 44 are located within the range of the passing seeding plate. The drop-out opening at the bottom of the bucket-shaped soil bin 40 is correspondingly located within the range of the unearthed soil conveying belt 44 .

[0052] 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 .

[0053] 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 structure. As the loosening roller 45 rotates, the soil in the passing seeding plate is brushed from the middle to both sides.

[0054] The loosening device 42 also includes a scraper plate 46, and scraper teeth are evenly arranged on the edge of the scraper plate 46 facing the loosening roller 45. The distance between the scraper 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.

[0055] 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 top rods 48. The top of the connecting frame C is symmetrically provided with connecting vertical plates 49 corresponding to the horizontal top rods 48. The top edges of the connecting vertical plates 49 are provided with multiple matching placement grooves 490. The horizontal top rods 48 are respectively placed in different placement grooves 490 to realize the adjustment of the axial height of the loosening roller 45.

[0056] The loosening device 42 also includes a soil leveling brush plate located on the side of the loosening roller 45 facing away from the excavation conveying device 41, and the two ends of the soil 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 soil 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.

[0057] The hardness of the bristles B is less than or equal to the hardness of the bristles A.

[0058] 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 be movably connected up and down along the connecting frame D51.

[0059] Guide upright rods 55 are fixed to both side edges of the cutter 52 , respectively. Matching guide sleeves A54 are fixed to the connecting frame D51 corresponding to the guide upright rods 55 . The guide upright rods 55 move up and down through the guide sleeves A54 .

[0060] Guide cross bars 56 are fixed to 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 reciprocate along the guide cross bars 56 .

[0061] A blade limiting stop bar 58 is fixed in the base frame 1 just below the cutter 52 , and the setting direction of the blade limiting stop bar 58 is parallel to the conveying direction of the conveying device.

[0062] Limiting rollers D19 are respectively provided on the base frame 1, at the front and rear sides of the paper cutting device 5 along the conveying direction of the conveying device. Both ends of the limiting roller D19 are rotatably connected to the support rods 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 spacing between the limiting roller D19 and the paper cutting device 5 is smaller than the size of the seeding plate along the conveying direction.

[0063] The compacting device A6 and the compacting device B9 respectively include a connecting rod 20 fixed to one side edge 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 a soil pressing roller 22 on one end face facing the conveying device. One side of the roller surface of the soil pressing roller 22 is provided with an arcuate strip-shaped groove 23 that runs through the axial ends of the soil pressing roller 22. The circumferential length of the groove wall on one side of the arcuate strip-shaped groove 23 from the roller surface of the soil pressing roller 22 to the groove wall on the other side of the arcuate strip-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 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 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 driving motor D is fixed to the end surface of the lifting and adjusting plate 21 facing away from the conveying device. The driving motor D is connected to the soil-pressing roller 22 through a transmission shaft 25 that is rotatably connected to the lifting and adjusting plate 21. The transmission shaft 25 is fixed coaxially with the soil-pressing roller 22.

[0064] The lifting and adjusting plate 21 is also fixed with a roller brush plate 24 , and the roller brush plate 24 is arranged parallel to the axis of the soil pressing roller 22 .

[0065] 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 .

[0066] 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 the connecting push rod 26 is extended upward and fixedly connected to the adjusting hand wheel 28. A nut pair matching the adjusting screw rod 27 is fixed to the lifting adjustment plate 21, and a guide sleeve C29 matching the connecting vertical rod 20 is also fixed to the lifting adjustment plate 21.

[0067] A limiting 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 roller B16 is provided on the side of the compacting device B9 facing the seed dropping device 8 .

[0068] The seed dropping device 8 comprises a connection 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 connection box 80, a bean discharging roller 84 is rotatably connected to the connection box 80 and located below the bottom of the bucket-shaped bean bin 81, 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 roller 84, a bean dropping guide plate A82 and a bean dropping guide plate B83 are respectively fixed to the bottom of the bucket-shaped bean bin 81 and the side where the bean discharging roller 84 rotates downward and the side where the bean discharging roller 84 rotates upward, 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, and an arc-shaped bean discharging guide plate 86 matching the roller surface of the bean discharging roller 84 is also fixed to the side where the bean discharging roller 84 rotates downward in the connection box 8.

[0069] 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.

[0070] In the connection 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, the roller surface of the bean-discharging auxiliary guide roller 88 contacts the roller surface of the bean-discharging roller 84, and the bean-discharging roller 84 and the bean-discharging auxiliary guide roller 88 have the same rotation direction.

[0071] The bean-discharging auxiliary guide roller 88 is transmission-connected to the bean-discharging roller 84 .

[0072] The roller surface of the bean-discharging roller 84 is evenly distributed with a plurality of annular grooves 89 along the axis of the bean-discharging roller 84, and the groove bottom radius of the annular groove 89 is smaller than the minimum distance between the groove bottom of the bean-discharging groove 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, and 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 groove 89, respectively, and the tops of the inserts 890 are respectively inserted into the bottoms of the corresponding annular grooves 89.

[0073] 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.

[0074] The bean discharging roller 84 includes a plurality of roller disc units coaxially fixed in sequence, a plurality of bean discharging grooves 85 are evenly arranged along the disc edge of the roller disc unit, and an annular gap is arranged between two adjacent roller disc units to form an annular groove 89.

[0075] The conveying device includes a plurality of conveying rollers 17 connected to the base frame 1 and rotated 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.

[0076] 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 .

[0077] The conveying roller 17 comprises 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.

[0078] A seed tray dividing device 11 is also provided on the base frame 1 at the side of the unwinding device 2 facing away from the spraying device A3. The seed tray dividing device 11 includes a body 110 connected to the base frame 1. 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. The transmission shaft of the conveyor belt 112 is synchronously transmitted with the conveying device of the base frame 1. Limiting side uprights 113 are symmetrically provided on the top of the conveying frame 111. A limiting end upright 114 is fixed between the limiting side uprights 113 and at one end of the limiting side uprights 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. 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 at the back sides corresponding to the limiting side uprights 113.

[0079] The bottom seed tray separation device includes a starter pneumatic piston cylinder B116 fixed to the body 110, and the piston rod B provided at the opposite ends of the starter pneumatic piston cylinder B116 drives the fork rod 115 to reciprocate along the 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 seed tray, and the height between the top surface of the fork rod 115 and the top surface of the conveyor belt 112 is equal to 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.

[0080] 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 to contact and limit with the swing limit part of the fork rod connecting rod 117. When the fork rod 115 contacts and limits with the swing limit part, one side end rod of the fork rod 115 points between the limiting side stand 113, and the other side end rod of the fork rod 115 points upward. The limiting side stand 113 is 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 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, thereby lifting the second layer of seeding discs stacked on the top surface of the conveyor belt 112 upward to separate from the bottom layer of seeding discs on the top surface of the conveyor belt 112.

[0081] 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 along the conveying direction parallel to the conveyor belt 112.

[0082] 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 containing device.

[0083] 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.

[0084] Combination Figure 1 to Figure 7 As shown, the process used in this application is described as follows.

[0085] The staff first passes the paper roll through the unwinding shaft, pre-loads the soil material into the bucket-shaped soil bin 40, pre-loads the bean seeds to be sown into the bucket-shaped bean bin 81, and then places the stacked seeding tray pile on the sowing feeding end of the base frame 1, and then the stacked seeding tray pile moves to the seeding tray dividing device 11 under the conveying action of the conveying device of the base frame 1. When the stacked seeding tray pile moves to the position of the seeding tray dividing device 11, the conveyor belt 112 drives the stacked seeding tray pile along the conveying frame 111 and the limiting side stand 113 to the limited position of the limited end stand 114, and the conveyor belt 112 stops conveying. 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 it out of 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 side end rod pointing upward of the fork rod 115 is limited by 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 contact with the top surface of the conveyor belt 112 for transmission; when there is no sowing tray on the conveyor belt 112 of the sowing tray dividing device 11, the staff again places the new stacked sowing tray pile on the sowing loading end of the base frame 1 for loading.

[0086] When the seeding tray passes through the conveyor belt 112, the limit end stand 114 and the conveying device to the position of the unwinding device 2, the free end of the paper wound on the unwinding device 2 is laid on the top surface of the seeding tray, and the seeding tray continues to be conveyed to the position of the spraying device A3 under the action of the conveying device, and then the spraying device A3 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 fits with 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.

[0087] After being sprayed by the spraying device A3, the seeding tray is further transported forward through the soil covering device 4 under the action of the conveying device. At this time, the soil in the bucket-shaped soil bin 40 falls onto the soil conveying belt 42 under the action of gravity and is transported through the soil conveying belt 42. The angle of the soil volume adjusting plate 43 is adjusted by the adjusting rod, so as to adjust the thickness of the soil conveyed by the soil conveying belt 42 after passing through the soil volume adjusting plate 43. The soil is transported by the soil conveying belt 42 and falls into the seeding tray through the soil covering device 4. The excess soil transported by the soil conveying belt 42 directly falls on the soil guide slope 14 corresponding to the soil covering device 4 at the bottom of the base frame 1, and the excess soil is transported to the soil collecting device through the soil guide slope 14, so that the staff can put the soil into the bucket-shaped soil bin 40 when there is less soil in the bucket-shaped soil bin 40; the seeding tray filled with soil is transported forward through the loosening device 42 under the action of the conveying device, so that the loosening roller 45 of the loosening device 42 passes through the soil loosening roller 45 of the loosening device 42. The soil on the surface of the seeding plate is turned over and leveled by multiple rows of bristles A on the surface, thereby ensuring that the soil in the seeding plate is evenly and loosely arranged; after the loosening roller 45 delivers the soil to the seeding plate, the bristles A rotate to the position of the scraper plate 46, thereby cleaning out the soil mixed with the bristles A, thereby preventing the soil from accumulating 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 connected to the vertical plate 49, thereby adjusting the loosening thickness of the soil in the seeding plate by the loosening roller 45 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 to be evenly and leveled.

[0088] The seeding disc that has passed through the loosening device 4 is conveyed to the paper cutting device 5 under the action of the conveying device, and the two adjacent seeding discs are connected together by the moistened paper. When the position between the two adjacent seeding discs passes through 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 discs and is limited by the blade limiting strip 58. In addition, while the cutter 52 is cutting paper, the seeding disc continues to be conveyed forward under the conveying of the conveying device, and 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 keep relatively still with the seeding disc 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 two adjacent seeding discs will not be lifted due to the cutter pressure when the paper is cut, further ensuring the normal cutting of the paper between the adjacent seeding discs.

[0089] The seeding disc passing through the paper cutting device 5 is conveyed to the position of the compacting device A6 under the action of the conveying device. The seeding disc first passes through the limiting pressure roller A15, and then when it is conveyed to the position of the soil pressing roller 22, the arcuate strip-shaped groove 23 of the soil pressing roller 22 just turns over the bottom, at this time, the roller surface just contacts with the soil in the seeding disc and compresses the soil, and when the seeding disc just passes through the soil pressing roller 22, the arcuate strip-shaped groove 23 just turns to the bottom, and when the arcuate strip-shaped groove 23 just turns over the bottom again, the next adjacent seeding disc is just conveyed 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 conveying device, the soil pressing roller 22 and the soil pressed remain relatively still in the conveying direction during the compaction process, that is, the roller surface of the soil pressing roller 22 and the soil in the seeding disc will not slide relative to each other, causing the soil in the seeding disc to become uneven after passing through the soil pressing roller 22. After the soil pressing roller 22 contacts the soil material of the seeding tray, the roller surface rotates to the position of the roller brush plate 24, and the soil material on the roller surface is brushed off by the roller brush plate 24. In addition, the height of the soil pressing roller 22 can be adjusted by adjusting the hand wheel 28 according to the different thickness of the soil material in the seeding tray and the different compaction degree of the soil material.

[0090] The seeding tray that has passed through the compacting device A6 is transferred to the position of 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.

[0091] The seeding tray that has passed through the spraying device B7 is transported to the position of the seed dropping device 8 under the action of the conveying device. The bean seeds in the bucket-shaped bean bin 81 fall downward to 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 groove 85 provided for the bean discharging roller 84 pass through the bean discharging auxiliary guide roller 88 under the action of 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 that has passed through the seed dropping device 8. When the bean seeds that have fallen onto the surface of the bean discharging roller 84 but have not fallen into the bean discharging groove 85 rotate to the position of the bean discharging auxiliary guide roller 88 under the action of the rotation of the bean discharging roller 84, the rotation of the bean discharging auxiliary guide roller 88 turns away the bean seeds on the surface of the bean discharging roller 84, and prevents 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, so that the bean seeds in the bean discharging trough 85 are separated from the bean discharging trough 85 and fall downward, so that the bean seeds discharged by the bean discharging guide plate 86 and the bean discharging roller 84 fall evenly into the soil surface in the sowing tray in rows; when the bean discharging roller 84 continues to rotate until it is located at the bottom of the bucket-shaped bean bin 81 again, the cleaning roller 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.

[0092] The seeding tray passing through 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 bean seeds on the surface of the seeding tray, so that the bean seeds are pressed into the soil material.

[0093] The seeding tray that has passed through the compacting device B9 is transported to the position of the spraying device C10 under the action of the conveying device. The working process of the spraying device C10 is the same as that of the spraying device A3, and the soil in the seeding tray that has passed through is sprayed again. The spraying device C sprays a disinfectant to further moisten the soil and sterilize the soil with the bean seeds.

[0094] After being sprayed by the spray device C10, the seeding plate is further conveyed to the rear end of the base frame 1 by the conveying device for discharge.

Claims

1. The seed dropping device of the bean sprout sowing production line is characterized by: The invention comprises a connection box (80) fixed on both sides of a base frame (1) of a bean sprout sowing production line, the top of the connection box (80) is connected and fixed with a bucket-shaped bean bin (81), a bean discharging roller (84) is rotatably connected to the connection box (80) and located below the bottom of the bucket-shaped bean bin (81), the roller surface of the bean discharging roller (84) is evenly distributed with a plurality of rows of bean discharging grooves (85) arranged parallel to the axis of the bean 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 connected to the bean discharging roller (84) and the bean discharging roller (84) are ... A bean dropping guide plate A (82) and a bean dropping guide plate B (83) are 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 outlet roller (84) is located to the axis position of the bean outlet 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 outlet guide plate (86) matching the roller surface of the bean outlet roller (84) is also fixed in the connection box (80) at the side where the bean outlet roller (84) rotates downward.

2. The seed placement device of the bean sprout sowing production line according to claim 1, characterized in that: A cleaning roller brush plate (87) is also fixed to the bottom edge of the bean-falling guide plate B (83), and the bristles of the cleaning roller brush plate (87) extend to the bottom of the bean outlet trough (85).

3. The seed placement device of the bean sprout sowing production line according to claim 1, characterized in that: A bean-discharging auxiliary guide roller (88) is also rotatably connected in the connection box (80) at 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 in parallel with the bean-discharging roller (84); and the bean-discharging roller (84) and the bean-discharging auxiliary guide roller (88) rotate in the same direction.

4. The seed placement device of the bean sprout sowing production line according to claim 3, characterized in that: 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.

5. The seed placement device of the bean sprout sowing production line according to claim 3, characterized in that: The bean-discharging auxiliary guide roller (88) is drivingly connected to the bean-discharging roller (84).

6. The seed placement device of the bean sprout sowing production line according to claim 1, characterized in that: The groove depth dimension in the bean discharging trough (85) along the radial direction of the bean discharging roller (84) and the groove width dimension along the circumferential direction of the bean discharging roller (84) at the position where the bean discharging trough (85) is located can only accommodate one bean seed.

7. The seed placement device of the bean sprout sowing production line according to claim 6, characterized in that: The radial spacing 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.

8. The seed placement device of the bean sprout sowing production line according to claim 1, characterized in that: The roller surface of the bean-discharging roller (84) is evenly distributed 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 groove (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 connection 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).

9. The seed placement device of the bean sprout sowing production line according to claim 8, characterized in that: 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) that rotates out of the arc-shaped bean-discharging guide plate (86), forming a bean-discharging opening.

10. The seed placement device of the bean sprout sowing production line according to claim 8 or 9, characterized in that: The bean discharging roller (84) comprises a plurality of roller disc units which are coaxially fixed in sequence, a plurality of bean discharging grooves (85) are evenly arranged along the disc edge of the roller disc unit, and an annular gap is arranged between two adjacent roller disc units to form an annular groove (89).

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