Seeding machine for rice seedling raising

Abstract

The application discloses a seeding machine for rice seedling raising, wherein a seedling raising tray is conveyed forward by a track assembly, and the seedling raising tray sequentially passes through a bed soil layer laying mechanism, a bed soil layer sweeping mechanism, a water spraying mechanism, a seeding mechanism, a covering soil layer laying mechanism and a covering soil layer sweeping mechanism, so that the seeding of rice in the seedling raising tray is completed, and the rotational speed of the seeding roller, the first roller brush and the second roller brush in the seeding mechanism can be adjusted by adjusting the rotational speed of the first motor through an adjusting knob, so that the seeding speed is adjusted; the opening degree of the feeding channel can be adjusted by driving the movable plate to move through an adjusting assembly, so that the seeding flow is adjusted. The application can adjust the seeding flow and the seeding speed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of seeders, and particularly relates to a seeder for rice seedling culture. BACKGROUND

[0002] Rice is one of the main food crops, and the demand of the public for functional rice is increasing, so the research prospect of functional rice is broad, which stimulates the progress of rice seedling culture technology, and in order to improve the rice seedling culture effect, rice seedling culture equipment needs to be used.

[0003] The current seeder for rice seedling culture can perform consecutive operation on rice seeding, and complete the processes of soil feeding to a seedling culture tray, watering, seeding, soil covering and the like. However, the current seeder cannot effectively adjust the seeding flow and the seeding speed, so as to meet the use requirements of different application scenarios. SUMMARY

[0004] The application provides a seeder for rice seedling culture, which can adjust the seeding flow and the seeding speed.

[0005] The seeder for rice seedling culture provided by the application comprises a track assembly for feeding a seedling culture tray forward, and a bed soil layer laying mechanism, a bed soil layer flattening mechanism, a water spraying mechanism, a seeding mechanism, a soil covering layer laying mechanism and a soil covering layer flattening mechanism are sequentially arranged along the feeding direction of the track assembly and used for laying a bed soil layer on the bottom of the seedling culture tray, spraying water on the bed soil layer, seeding on the bed soil layer and laying a soil covering layer on the bed soil layer and flattening the soil covering layer.

[0006] The seeding mechanism comprises a first shell, the top of the first shell is provided with a first feeding port, the bottom of the first shell is provided with a first discharging port, an upper portion of the first shell is provided with a seeding hopper, the bottom outlet of the seeding hopper is communicated with the feeding port, and the first shell is provided with a seeding roller, a first roller brush, a second roller brush and a movable plate.

[0007] The axes of the seeding roller, the first roller brush and the second roller brush are parallel to each other, the seeding roller, the first roller brush and the second roller brush are driven to rotate in the same direction by a same first motor through a chain, and the first shell is provided with an adjusting knob for adjusting the rotating speed of the first motor.

[0008] A feeding channel is arranged between the first feeding port and the outer wall of the seeding roller, and the feeding channel is used for guiding the rice seeds entering the first shell from the first feeding port to the outer wall of the seeding roller, the movable plate is movably arranged in the first shell, and the first shell is provided with an adjusting assembly for driving the movable plate to move, so as to adjust the opening degree of the feeding channel through the movement of the movable plate.

[0009] The outer wall of the seeding roller is provided with a plurality of strip-shaped grooves, the plurality of strip-shaped grooves are uniformly and spacedly distributed around the axis of the seeding roller, each of the strip-shaped grooves is parallel to the axis of the seeding roller, the second roller brush and the first roller brush are close to the outer wall of the seeding roller, the second roller brush and the first roller brush are sequentially distributed along the rotation direction of the seeding roller, the spacing between the second roller brush and the outer wall of the seeding roller is greater than the spacing between the first roller brush and the outer wall of the seeding roller, and the bottom of the seeding roller is located above the first discharge port.

[0010] After the rice seeds are guided by the feeding channel to the outer wall of the seeding roller, part of the rice seeds fill the strip-shaped grooves, and the other part of the rice seeds are attached to the outer wall surface of the seeding roller. The seeding roller rotates with the rice seeds. The second roller brush and the first roller brush sequentially brush the rice seeds on the outer wall surface of the seeding roller in the direction opposite to the rotation direction of the seeding roller, so that only the rice seeds in the strip-shaped grooves of the seeding roller pass through. When the strip-shaped grooves move to the upper side of the first discharge port, the rice seeds in the strip-shaped grooves fall through the first discharge port to the bed soil layer of the seedling tray for seeding.

[0011] Preferably, the first housing is provided with a first guide plate and a second guide plate which are inclined. The upper ends of the first guide plate and the second guide plate are respectively connected to the two sides of the bottom outlet of the seeding funnel. The lower end of the second guide plate is close to the outer wall of the seeding roller. The first guide plate is above the second guide plate, and the lower end of the first guide plate faces the second guide plate. The movable plate is slidably arranged on the first guide plate. The lower end of the movable plate is close to the second guide plate. There is a gap between the lower end of the movable plate and the second guide plate for the rice seeds to pass through. The size of the gap is adjusted by moving the movable plate, so as to adjust the opening of the feeding channel.

[0012] Preferably, the adjusting assembly comprises a screw rod, a bracket and a rotating member. The bracket is fixed to the outer wall of the first housing. The rotating member is rotatably arranged on the bracket. One end of the rotating member is provided with a threaded hole. The screw rod is arranged along the moving direction of the movable plate. One end of the screw rod protrudes out of the first housing and is threadedly connected to the threaded hole of the rotating member. The screw rod is fixedly connected with the movable plate. When the rotating member is screwed, the screw rod drives the movable plate to move so that the lower end of the movable plate is close to or away from the second guide plate.

[0013] Preferably, the second roller brush comprises a roller shaft and four brush strips. The four brush strips are clamped to the outer wall of the roller shaft and are uniformly and spacedly distributed around the axis of the roller shaft. The surface of the first roller brush is covered with first bristles.

[0014] When the first roller brush and the second roller brush rotate, the spacing between the brush strips of the second roller brush and the outer wall of the seeding roller is greater than the spacing between the first bristles of the first roller brush and the outer wall of the seeding roller.

[0015] As preferred, an arc-shaped plate is arranged in the first housing, the arc-shaped plate is arranged with the same center as the seeding roller, the upper end of the arc-shaped plate is close to the first roller brush, the lower end of the arc-shaped plate is above the first discharge port, the concave surface of the arc-shaped plate has a gap with the outer wall of the seeding roller, and the concave surface of the arc-shaped plate is used to guide the rice seeds dropped from the strip-shaped groove of the seeding roller to the first discharge port.

[0016] As preferred, a scraper is arranged in the first housing, the scraper is above the arc-shaped plate, the scraper is in contact with the first bristles of the first roller brush, the scraper is used to scrape the rice seeds adhered on the first roller brush, the convex surface of the arc-shaped plate is vertically connected with a sliding rail, a material box is slidably arranged on the sliding rail, the material box can be pulled out of or pushed into the first housing, when the material box is pushed into the first housing, the rice seeds scraped by the scraper fall on the back of the arc-shaped plate and then slide along the back of the arc-shaped plate to the material box.

[0017] As preferred, a movable piece is rotatably arranged in the first housing, the rotation axis of the movable piece is parallel to the axis of the seeding roller, one end of the movable piece is provided with a poking bar, the poking bar is parallel to the axis of the seeding roller, the cross section of the poking bar is sharp-shaped so that the poking bar can extend into the strip-shaped groove, the other end of the movable piece is provided with an arc-shaped protrusion, the poking bar and the arc-shaped protrusion are close to the outer wall of the seeding roller, and a torsion spring is arranged on the movable piece; when the seeding roller rotates to move any strip-shaped groove to the position where the poking bar is located, the rotation force of the torsion spring on the movable piece can make the poking bar extend into the strip-shaped groove to poke out the rice seeds remaining in the strip-shaped groove, and when the strip-shaped groove continues to move away from the poking bar, the groove wall of the strip-shaped groove can apply a force to the poking bar to push the movable piece to rotate against the action of the torsion spring, at this time, the arc-shaped protrusion hits the outer wall of the seeding roller.

[0018] As preferred, a brush assembly is further arranged between the seeding mechanism and the soil layer laying mechanism, the brush assembly comprises a V-shaped mounting bar, the V-shaped mounting bar is horizontally arranged above the track assembly, the tip of the V-shaped mounting bar faces the seeding mechanism, and the bottom of the V-shaped mounting bar is provided with second bristles; when the nursery tray passes below the brush assembly, the second bristles can brush the soil on the two side edges of the nursery tray outwards.

[0019] As preferred, the bed soil layer laying mechanism and the soil layer laying mechanism each comprise a soil inlet funnel, a conveying belt, two driving roller shafts, a second motor and a baffle, the conveying belt is below the bottom outlet of the soil inlet funnel, the conveying belt is sleeved on the two driving roller shafts, the second motor is used to drive the two driving roller shafts to rotate, the conveying belt is above the track assembly, the conveying direction of the conveying belt is consistent with the conveying direction of the track assembly, and the baffle is arranged above the conveying belt and is used to scrape the soil conveyed on the conveying belt.

[0020] Preferably, the bed soil layer flattening mechanism and the covering soil layer flattening mechanism each comprise a rotating roller driven to rotate by a second motor, the rotating roller is located above the track assembly, and a third brush is arranged on the rotating roller, when the seedling tray passes below the rotating roller, the third brush on the rotating roller sweeps the soil on the seedling tray flat.

[0021] The one or more technical solutions provided in the present application have at least the following technical effects or advantages:

[0022] The seeding machine for rice seedling raising in the present application, the seedling tray is conveyed forward by the track assembly, and the seedling tray sequentially passes through the bed soil layer laying mechanism, the bed soil layer flattening mechanism, the water spraying mechanism, the seeding mechanism, the covering soil layer laying mechanism and the covering soil layer flattening mechanism, the bed soil layer laying mechanism is used for laying the bed soil layer on the bottom of the seedling tray, the bed soil layer flattening mechanism is used for flattening the bed soil layer, the water spraying mechanism is used for spraying water to the bed soil layer, the seeding mechanism is used for seeding on the bed soil layer, the covering soil layer laying mechanism is used for laying the covering soil layer on the bed soil layer, and the covering soil layer flattening mechanism is used for flattening the covering soil layer, so as to complete the seeding of the rice in the seedling tray, and the rotational speed of the seeding roller, the first roller brush and the second roller brush in the seeding mechanism can be adjusted by adjusting the rotational speed of the first motor through the adjusting knob, so as to adjust the seeding speed, and the opening of the feeding channel can be adjusted by driving the movable plate to move through the adjusting assembly, so as to adjust the seeding flow, so that the use requirements of different application scenarios can be met by adjusting the seeding speed and the seeding flow. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the following embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 It is a structure schematic view of the seeding machine of the embodiment;

[0025] Figure 2 It is a sectional view of the seeding mechanism;

[0026] Figure 3 It is a structure schematic view of the track assembly;

[0027] Figure 4 It is a sectional view of the bed soil layer laying mechanism and the covering soil layer laying mechanism;

[0028] Figure 5 It is a sectional view of the bed soil layer flattening mechanism and the covering soil layer flattening mechanism;

[0029] Figure 6A structure diagram of the water spraying mechanism;

[0030] Figure 7 A structure diagram of the brush assembly. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0032] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or server including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or modules that are not clearly listed or inherent to the process, method, product, or device.

[0033] As Figures 1-7 shown, the rice seedling raising seeder of the present embodiment includes a track assembly 10 for conveying the seedling raising tray forward, a bed soil layer laying mechanism 20 for laying a bed soil layer on the bottom of the seedling raising tray, a bed soil layer smoothing mechanism 30 for smoothing the bed soil layer, a water spraying mechanism 40 for spraying water on the bed soil layer, a seeding mechanism 50 for seeding on the bed soil layer, a cover soil layer laying mechanism 60 for laying a cover soil layer on the bed soil layer, and a cover soil layer smoothing mechanism 70 for smoothing the cover soil layer, which are sequentially arranged along the conveying direction of the track assembly 10. The seedling raising tray is conveyed forward by the track assembly 10, and sequentially passes through the bed soil layer laying mechanism 20, the bed soil layer smoothing mechanism 30, the water spraying mechanism 40, the seeding mechanism 50, the cover soil layer laying mechanism 60, and the cover soil layer smoothing mechanism 70, so as to complete the seeding of the rice in the seedling raising tray.

[0034] The track assembly 10 comprises two tracks 11 which are parallel to each other and extend along the conveying direction of the track assembly 10, and a plurality of rotating shafts 12 which are connected between the two tracks 11, are arranged at intervals along the length direction of the tracks 11, are perpendicular to the tracks 11, are driven to rotate synchronously by a servo motor through a transmission chain, and each of the rotating shafts 12 is fixedly sleeved with a friction wheel 13. The seedling tray is placed between the two tracks 11, and the bottom of the seedling tray is in contact with the friction wheel 13. The friction wheel 13 is driven to rotate by the rotating shaft 12, so that the seedling tray is driven to move forward by the rotation of the friction wheel 13. The seedling trays on the track assembly 10 are sequentially abutted and conveyed forward.

[0035] The seeding mechanism 50 comprises a first shell 51, the top of the first shell 51 is provided with a first feeding port 511, the bottom of the first shell 51 is provided with a first discharging port 512, the upper side of the first shell 51 is provided with a seeding hopper 52, the bottom outlet of the seeding hopper 52 is communicated with the feeding port 511, so that the rice seeds in the seeding hopper 52 enter the first shell 51 through the discharging port 511, and the first shell 51 is provided with a seeding roller 53, a first roller brush 54, a second roller brush 55 and a movable plate 56.

[0036] The axes of the seeding roller 53, the first roller brush 54 and the second roller brush 55 are parallel to each other, and the axes of the seeding roller 53, the first roller brush 54 and the second roller brush 55 are their rotation axes. The seeding roller 53, the first roller brush 54 and the second roller brush 55 are driven to rotate in the same direction by a first motor through a chain. The first shell 51 is provided with an adjusting knob for adjusting the rotating speed of the first motor, that is, the rotating speed of the first motor can be adjusted by the adjusting knob, so as to adjust the rotating speed of the seeding roller 53, the first roller brush 54 and the second roller brush 55, thereby adjusting the seeding speed.

[0037] A feeding channel is arranged between the first feeding port 511 and the outer wall of the seeding roller 53, and is used for guiding the rice seeds entering the first shell 51 through the first feeding port 511 to the outer wall of the seeding roller 53. The movable plate 56 is movably arranged in the first shell 51, and the first shell 51 is provided with an adjusting assembly for driving the movable plate 56 to move, so as to adjust the opening degree of the feeding channel through the movement of the movable plate 56. In this way, the opening degree of the feeding channel can be adjusted through the movement of the movable plate 56, so as to adjust the feeding flow of the rice seeds in the feeding channel, thereby adjusting the seeding amount.

[0038] The outer wall of the seeding roller 53 is provided with a plurality of strip-shaped grooves 531, which are evenly and circumferentially distributed around the axis of the seeding roller 53 and are parallel to the axis of the seeding roller 53. In the process of rotation of the seeding roller 53, the rice seeds are transported to the outer wall of the seeding roller 53 through the feeding channel, and the strip-shaped grooves 531 are filled with the rice seeds, so that the seeding roller 53 moves with the rice seeds. Of course, there are also excess rice seeds accumulated on the outer wall of the seeding roller 53. The second roller brush 55 and the first roller brush 54 are close to the outer wall of the seeding roller 53, and are sequentially distributed along the rotation direction of the seeding roller 53. The distance between the second roller brush 55 and the outer wall of the seeding roller 53 is greater than the distance between the first roller brush 54 and the outer wall of the seeding roller 53. In this way, through the rotation of the second roller brush 55 and the first roller brush 54, the second roller brush 55 and the first roller brush 54 can sequentially brush the outer wall of the seeding roller 53 to brush down the excess rice seeds on the outer wall of the seeding roller 53. The bottom of the seeding roller 53 is located above the first discharge port 512, so that when the strip-shaped groove 531 of the seeding roller 53 moves above the first discharge port 512, the strip-shaped groove 531 of the seeding roller 53 opens downward, and at this time the rice seeds in the strip-shaped groove 531 can fall into the first discharge port 512.

[0039] After the rice seeds are guided by the feeding channel to the outer wall of the seeding roller 53, part of the rice seeds fill the strip-shaped grooves 531, and the other part of the rice seeds adhere to the outer wall of the seeding roller 53. The seeding roller 53 rotates with the rice seeds, and the second roller brush 55 and the first roller brush 54 sequentially brush the rice seeds on the outer wall of the seeding roller 53 in the direction opposite to the rotation direction of the seeding roller 53, so that only the rice seeds in the strip-shaped grooves 531 of the seeding roller 53 pass through. When the strip-shaped groove 531 moves above the first discharge port 512, the rice seeds in the strip-shaped groove 531 fall through the first discharge port 512 to the bed soil layer of the seedling tray for sowing.

[0040] The first shell 51 is provided with a first material guide plate 57 and a second material guide plate 58. The upper end of the first material guide plate 57 and the upper end of the second material guide plate 58 are connected to the two sides of the bottom outlet of the seeding funnel 52 respectively. The lower end of the second material guide plate 58 is attached to the outer wall of the seeding roller 53. The first material guide plate 57 is located above the second material guide plate 58, and the lower end of the first material guide plate 57 faces the second material guide plate 58. After the rice seeds enter the first shell 51 from the seeding funnel 52, the movable plate 56 is slidably arranged on the first material guide plate 57. Specifically, the first material guide plate 57 is provided with a sliding groove extending along the moving direction of the movable plate 56. The movable plate 56 is slidably connected to the sliding groove of the first material guide plate 57 through a bolt, so that the movable plate 56 can move along the sliding groove of the first material guide plate 57. The lower end of the movable plate 56 is close to the second material guide plate 58, and a gap for the rice seeds to pass through is formed between the lower end of the movable plate 56 and the second material guide plate 58. After the rice seeds enter the first shell 51 from the seeding funnel 52, the rice seeds are accumulated in the space formed by the first material guide plate 57, the second material guide plate 58 and the two side walls of the first shell 51, and the rice seeds in the space can only continue to move to the seeding roller 53 through the gap between the lower end of the movable plate 56 and the second material guide plate 58. Therefore, the size of the gap can be adjusted by adjusting the movement of the movable plate 56 to adjust the opening of the feeding channel. In this way, the seeding flow of the rice seeds can be adjusted by adjusting the opening of the feeding channel.

[0041] The adjusting assembly comprises a screw rod 563, a bracket 562 and a rotating piece 561. The bracket 562 is fixed on the outer wall of the first shell 51. The rotating piece 561 is rotatably arranged on the bracket 562, that is, an annular groove is arranged on the peripheral wall of the rotating piece 561. The bracket 562 is movably arranged in the annular groove of the rotating piece 561, so that the axis of the rotating piece 561 is limited by the bracket 562, but the rotating piece 561 and the bracket 562 can rotate relative to each other. One end of the rotating piece 561 is provided with a threaded hole. The screw rod 563 is arranged along the moving direction of the movable plate 56. One end of the screw rod 563 protrudes out of the first shell 51 and is threadedly connected to the threaded hole of the rotating piece 561. The screw rod 563 is fixedly connected with the movable plate 56. When the rotating piece 561 is twisted, the screw rod 563 drives the movable plate 56 to move so that the lower end of the movable plate 56 is close to or away from the second material guide plate 58, thereby adjusting the distance between the lower end of the movable plate 56 and the second material guide plate 58 by rotating the rotating piece 561, and adjusting the opening of the feeding channel.

[0042] The second roller brush 55 comprises a roller shaft 551 and four brush bars 552, the four brush bars 552 are clamped on the outer wall of the roller shaft 551, and the four brush bars 552 are uniformly and circumferentially distributed around the axis of the roller shaft 551; the surface of the first roller brush 54 is covered with first brush hairs.

[0043] When the first roller brush 54 and the second roller brush 55 rotate, the distance between the brush bars 552 of the second roller brush 55 and the outer wall of the seeding roller 53 is greater than the distance between the first brush hairs of the first roller brush 54 and the outer wall of the seeding roller 53, so that when the seeding roller 53 moves with the rice seeds, the brush bars 552 of the second roller brush 55 first brush the rice seeds on the outer wall of the seeding roller 53, and then the first brush hairs of the first roller brush 54 brush the rice seeds on the outer wall of the seeding roller 53, so that the outer wall of the seeding roller 53 is brushed twice, and the excess rice seeds on the outer wall of the seeding roller 53 are brushed clean, leaving only the rice seeds in the strip-shaped groove 531.

[0044] The first housing 51 is provided with an arc-shaped plate 513, the arc-shaped plate 513 is arranged with the same center as the seeding roller 53, the upper end of the arc-shaped plate 513 is close to the first roller brush 54, the lower end of the arc-shaped plate 513 is located above the first discharge port 512, the concave surface of the arc-shaped plate 513 has a gap with the outer wall of the seeding roller 53, and the concave surface of the arc-shaped plate 513 is used to guide the rice seeds falling from the strip-shaped groove 531 of the seeding roller 53 to the first discharge port 512, so that when the strip-shaped groove 531 of the seeding roller 53 has not moved directly above the first discharge port 512, if the rice seeds in the strip-shaped groove 531 fall out, the fallen rice seeds can slide along the concave surface of the arc-shaped plate 513 to the first discharge port 512, and then fall from the first discharge port 512, so that the area of the rice seeds falling from the seeding mechanism is more concentrated.

[0045] The first shell 51 is provided with a scraper 514 above the arc-shaped plate 513, the scraper 514 is in contact with the first brush of the first roller brush 54, the scraper 514 is used to scrape the rice seeds adhered on the first brush of the first roller brush 54, so as to avoid too many rice seeds adhered on the first roller brush 54, the convex surface of the arc-shaped plate 513 is vertically connected with a sliding rail 515, the sliding rail 515 is slidably provided with a material box 516, the material box 516 can be pulled out of or pushed into the first shell 51, when the material box 516 is pushed into the first shell 51, the rice seeds scraped off by the scraper 514 fall on the back surface of the arc-shaped plate 513 and then slide along the back surface of the arc-shaped plate 513 to the material box 516, and when needed, the material box 516 can be pulled out of the first shell 51 to check the number of rice seeds collected in the material box 516, if the number of rice seeds in the material box 516 is relatively large, it indicates that the first roller brush 54 adheres too many rice seeds, and the adhesion of this batch of rice seeds is too strong and should be treated.

[0046] The first shell 51 is rotatably provided with a movable piece 59, the rotation axis of the movable piece 59 is parallel to the axis of the seeding roller 53, one end of the movable piece 59 is provided with a poking bar 591, the poking bar 591 is parallel to the axis of the seeding roller 53, the length of the poking bar 591 is consistent with the length of the seeding roller 53, the cross section of the poking bar 591 is sharp-shaped so that the poking bar 591 can extend into the strip-shaped groove 531, the other end of the movable piece 59 is provided with an arc-shaped protrusion 592, the poking bar 591 and the arc-shaped protrusion 592 are close to the outer wall of the seeding roller 53, the movable piece 59 is provided with a torsion spring 593, the torsion spring 593 is used to apply a torsional moment to the movable piece 59; when the seeding roller 53 rotates to move any strip-shaped groove 531 to the position where the poking bar 591 is located, the rotation force applied by the torsion spring 593 to the movable piece 59 can make the poking bar 591 extend into the strip-shaped groove 531, so as to poke out the rice seeds remaining in the strip-shaped groove 531 and not falling into the first discharge port 512, and when the strip-shaped groove 531 continues to move away from the poking bar 591, the groove wall of the strip-shaped groove 531 can apply a force to the poking bar 591 to push the movable piece 59 to rotate against the action of the torsion spring 593, at this time, the arc-shaped protrusion 592 hits the outer wall of the seeding roller 53, and the arc-shaped protrusion 592 hitting the outer wall of the seeding roller 53 can make the seeding roller 53 vibrate, so that the rice seeds in the strip-shaped groove 531 of the seeding roller 53 are more likely to fall into the first discharge port. In this way, when each strip-shaped groove 531 moves to the position where the poking bar 591 is located, the poking bar 591 can poke out the rice seeds remaining in the strip-shaped groove 531 and not falling into the first discharge port 512, and the arc-shaped protrusion 592 will hit the seeding roller 53 once.

[0047] The sowing mechanism 50 and the soil layer laying mechanism 60 are further provided with a brush assembly 80, the brush assembly 80 comprises a V-shaped mounting strip 81, the V-shaped mounting strip 81 is horizontally arranged above the track assembly 10, the tip of the V-shaped mounting strip 81 is towards the sowing mechanism 50, and the bottom of the V-shaped mounting strip 81 is provided with second brush hairs 82, when the seedling tray passes below the brush assembly 80, the second brush hairs 82 can brush off the soil on the two side edges of the seedling tray, so that the two side edges of the seedling tray can be brushed clean, thereby facilitating subsequent transportation of the seedling tray.

[0048] The bed soil layer laying mechanism 20 and the soil layer laying mechanism 60 both comprise an earth inlet funnel 21, a conveying belt 22, two driving roller shafts 23, a second motor 24 and a baffle 25, the conveying belt 22 is below the bottom outlet of the earth inlet funnel 21, the conveying belt 22 is sleeved on the two driving roller shafts 23, the second motor 24 is used for driving the two driving roller shafts 23 to rotate, the conveying belt 22 is above the track assembly 10, the conveying direction of the conveying belt 22 is consistent with the conveying direction of the track assembly 10, the baffle 25 is arranged above the conveying belt 22, the baffle 25 is used for scraping the soil conveyed on the conveying belt 22, so that the amount of soil falling from the conveying belt 22 into the seedling tray is consistent, when the seedling tray passes below the conveying belt 22, the soil on the conveying belt 22 falls onto the seedling tray, so as to complete the laying of the bed soil layer or the soil layer on the seedling tray, and the structure of the bed soil layer laying mechanism 20 and the soil layer laying mechanism 60 in the embodiment is completely consistent.

[0049] The bed soil layer sweeping mechanism 30 and the soil layer sweeping mechanism 70 both comprise a rotating roller 31, the rotating roller 31 is driven to rotate by the second motor 24 through a transmission chain, that is, the bed soil layer sweeping mechanism 30 and the bed soil layer laying mechanism 20 are driven by the same second motor 24, and the soil layer sweeping mechanism 70 and the soil layer laying mechanism 60 are driven by the same second motor 24, the rotating roller 31 is above the track assembly 10, the axis of the rotating roller 31 is perpendicular to the conveying direction of the track assembly 10, and the third brush hairs 32 are arranged on the rotating roller 31, when the seedling tray passes below the rotating roller 31, the third brush hairs 32 on the rotating roller 31 brush and sweep the soil on the seedling tray, so as to brush and sweep the bed soil layer or the soil layer on the seedling tray, and the structure of the bed soil layer sweeping mechanism 30 and the soil layer sweeping mechanism 70 in the embodiment is completely consistent.

[0050] The water spraying mechanism comprises a water tank, a water pump, a water supply main pipe 41 and a plurality of water spraying pipes 42, the plurality of water spraying pipes 42 are located above the track assembly 10, the plurality of water spraying pipes 42 are arranged perpendicularly to the conveying direction of the track assembly 10, the bottom of each of the plurality of water spraying pipes 42 is provided with a water spraying hole, the water supply main pipe 41 is connected with the plurality of water spraying pipes 42 respectively, the water pump is used for conveying water in the water tank to the plurality of water spraying pipes 42, the water spraying pipe 42 sprays water downward through the water spraying hole, so that when the seedling tray passes below the water spraying mechanism, the water spraying pipe 42 can spray water into the seedling tray, so as to irrigate the bed soil layer in the seedling tray.

[0051] It should be noted that the above-mentioned sequence of the embodiments of the present application is only for description, and does not represent the advantages and disadvantages of the embodiments. And the above describes specific embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be executed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multi-task processing and parallel processing are possible or can be advantageous.

[0052] The above only describes the preferred embodiments of the present application and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0053] The present application and the drawings are only exemplary descriptions of the present application, and are considered to cover any and all modifications, changes, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art can make various modifications and changes to the present application without departing from the scope of the present application. Thus, if these modifications and changes of the present application belong to the scope of the present application and its equivalents, the present application intends to include these modifications and changes.

Claims

1. A rice seedling planter, characterized in that, The system includes a track assembly (10) for forward transport of seedling trays, and along the transport direction of the track assembly (10) are arranged a soil layer laying mechanism (20) for laying a soil layer at the bottom of the seedling tray, a soil layer leveling mechanism (30) for leveling the soil layer, a water spraying mechanism (40) for spraying water onto the soil layer, a sowing mechanism (50) for sowing seeds on the soil layer, a soil covering mechanism (60) for laying a covering soil layer on the soil layer, and a soil covering mechanism (70) for leveling the covering soil layer. The sowing mechanism (50) includes a first housing (51), the top of the first housing (51) has a first feed inlet (511), the bottom of the first housing (51) has a first discharge outlet (512), a sowing funnel (52) is provided above the first housing (51), the bottom outlet of the sowing funnel (52) is connected to the feed inlet (511), and a sowing roller (53), a first roller brush (54), a second roller brush (55) and a movable plate (56) are provided inside the first housing (51). The axes of the sowing roller (53), the first roller brush (54), and the second roller brush (55) are parallel to each other. The sowing roller (53), the first roller brush (54), and the second roller brush (55) are driven by the same first motor through a chain and rotate in the same direction. An adjustment knob for adjusting the speed of the first motor is provided on the first housing (51). A feeding channel is provided between the first feed inlet (511) and the outer wall of the sowing roller (53). The feeding channel is used to guide the rice seeds that enter the first housing (51) from the first feed inlet (511) to the outer wall of the sowing roller (53). The movable plate (56) is movably disposed in the first housing (51). An adjustment component is provided on the first housing (51) for driving the movable plate (56) to move, so as to adjust the opening of the feeding channel by moving the movable plate (56). The outer wall of the sowing roller (53) is provided with several strip grooves (531). The strip grooves (531) are evenly spaced around the axis of the sowing roller (53). Each strip groove (531) is parallel to the axis of the sowing roller (53). The second roller brush (55) and the first roller brush (54) are close to the outer wall of the sowing roller (53). The second roller brush (55) and the first roller brush (54) are distributed sequentially along the rotation direction of the sowing roller (53). The distance between the second roller brush (55) and the outer wall of the sowing roller (53) is greater than the distance between the first roller brush (54) and the outer wall of the sowing roller (53). The bottom of the sowing roller (53) is located above the first discharge port (512). After the rice seeds are guided to the outer wall of the sowing roller (53) through the feeding channel, some of the rice seeds fill the strip groove (531), and the other part of the rice seeds adhere to the outer wall of the sowing roller (53). The sowing roller (53) rotates with the rice seeds, and the second roller brush (55) and the first roller brush (54) brush down the rice seeds on the outer wall of the sowing roller (53) in the opposite direction to the rotation direction of the sowing roller (53), so that only the rice seeds in the strip groove (531) of the sowing roller (53) pass through. When the strip groove (531) moves to the top of the first discharge port (512), the rice seeds in the strip groove (531) fall into the seedbed soil layer of the seedling tray through the first discharge port (512) for sowing. The first housing (51) is inclinedly provided with a first guide plate (57) and a second guide plate (58). The upper ends of the first guide plate (57) and the second guide plate (58) are respectively connected to the two sides of the bottom outlet of the sowing funnel (52). The lower end of the second guide plate (58) is attached to the outer wall of the sowing roller (53). The first guide plate (57) is located above the second guide plate (58), and the lower end of the first guide plate (57) faces the second guide plate (58). The movable plate (56) is slidably disposed on the first guide plate (57). The lower end of the movable plate (56) is close to the second guide plate (58). There is a gap between the lower end of the movable plate (56) and the second guide plate (58) for rice seeds to pass through. The size of the gap is adjusted by moving the movable plate (56) to adjust the opening of the feeding channel. The adjustment assembly includes a screw (563), a bracket (562), and a rotating component (561). The bracket (562) is fixed on the outer wall of the first housing (51). The rotating component (561) is rotatably mounted on the bracket (562). One end of the rotating component (561) is provided with a threaded hole. The screw (563) is arranged along the moving direction of the movable plate (56). One end of the screw (563) extends out of the first housing (51) and is threaded into the threaded hole of the rotating component (561). The screw (563) is fixedly connected to the movable plate (56). When the rotating component (561) is turned, the screw (563) drives the movable plate (56) to move so that the lower end of the movable plate (56) approaches or moves away from the second guide plate (58). The second roller brush (55) includes a roller shaft (551) and four brush strips (552). The four brush strips (552) are all snapped onto the outer wall of the roller shaft (551). The four brush strips (552) are evenly spaced around the axis of the roller shaft (551). The surface of the first roller brush (54) is covered with first bristles. When the first roller brush (54) and the second roller brush (55) rotate, the distance between the brush bar (552) of the second roller brush (55) and the outer wall of the sowing roller (53) is greater than the distance between the first bristle of the first roller brush (54) and the outer wall of the sowing roller (53). A movable plate (59) is rotatably disposed inside the first housing (51). The rotation axis of the movable plate (59) is parallel to the axis of the sowing roller (53). One end of the movable plate (59) is provided with a push bar (591), which is parallel to the axis of the sowing roller (53). The cross-section of the push bar (591) is pointed so that the push bar (591) can extend into the strip groove (531). The other end of the movable plate (59) is provided with an arc-shaped protrusion (592). Both the push bar (591) and the arc-shaped protrusion (592) are close to the outer wall of the sowing roller (53). A torsion spring (593) is provided on the movable plate (59). When the seeding roller (53) rotates to move any one of the strip grooves (531) to the position of the actuating bar (591), the rotational force applied by the torsion spring (593) to the movable piece (59) can cause the actuating bar (591) to extend into the strip groove (531) to remove the rice seeds remaining in the strip groove (531). As the strip groove (531) continues to move away from the actuating bar (591), the groove wall of the strip groove (531) can exert force on the actuating bar (591) to push the movable piece (59) to rotate against the force of the torsion spring (593). At this time, the arc-shaped protrusion (592) hits the outer wall of the seeding roller (53).

2. The rice seedling planter according to claim 1, characterized in that, An arc-shaped plate (513) is provided inside the first housing (51). The arc-shaped plate (513) is arranged with the same center as the sowing roller (53). The upper end of the arc-shaped plate (513) is close to the first roller brush (54), and the lower end of the arc-shaped plate (513) is located above the first discharge port (512). There is a gap between the concave surface of the arc-shaped plate (513) and the outer wall of the sowing roller (53). The concave surface of the arc-shaped plate (513) is used to guide the rice seeds that fall out of the strip groove (531) of the sowing roller (53) to the first discharge port (512).

3. The rice seedling planter according to claim 2, characterized in that, A scraper (514) is provided inside the first housing (51). The scraper (514) is located above the arc plate (513). The scraper (514) is in contact with the first bristles of the first roller brush (54). The scraper (514) is used to scrape off the rice seeds adhering to the first roller brush (54). A slide rail (515) is vertically connected to the convex surface of the arc plate (513). A material box (516) is slidably provided on the slide rail (515). The material box (516) can be pulled out or pushed into the first housing (51). When the material box (516) is pushed into the first housing (51), the rice seeds scraped off by the scraper (514) fall onto the back of the arc plate (513) and then slide down along the back of the arc plate (513) into the material box (516).

4. The rice seedling planter according to claim 1, characterized in that, A brush assembly (80) is also provided between the sowing mechanism (50) and the soil covering layer laying mechanism (60). The brush assembly (80) includes a V-shaped mounting strip (81), which is horizontally positioned above the track assembly (10). The tip of the V-shaped mounting strip (81) faces the sowing mechanism (50), and a second brush bristle (82) is provided at the bottom of the V-shaped mounting strip (81). When the seedling tray passes under the brush assembly (80), the second brush bristle (82) can brush the soil on both sides of the seedling tray out of the seedling tray.

5. The rice seedling planter according to claim 1, characterized in that, Both the bed soil laying mechanism (20) and the cover soil laying mechanism (60) include a soil inlet funnel (21), a conveyor belt (22), two drive rollers (23), a second motor (24), and a baffle (25). The conveyor belt (22) is located below the bottom outlet of the soil inlet funnel (21). The conveyor belt (22) is sleeved on the two drive rollers (23). The second motor (24) is used to drive the two drive rollers (23) to rotate. The conveyor belt (22) is located above the track assembly (10). The conveying direction of the conveyor belt (22) is consistent with the conveying direction of the track assembly (10). The baffle (25) is set above the conveyor belt (22). The baffle (25) is used to scrape the soil conveyed on the conveyor belt (22) flat.

6. The rice seedling planter according to claim 5, characterized in that, Both the bed soil leveling mechanism (30) and the cover soil leveling mechanism (70) include a rotating roller (31). The rotating roller (31) is driven by the second motor (24) to rotate. The rotating roller (31) is located above the track assembly (10). The rotating roller (31) is provided with a third brush (32). When the seedling tray passes under the rotating roller (31), the third brush (32) on the rotating roller (31) will brush the soil on the seedling tray to level it.

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