A plug-type green onion precision seedling raising machine

Abstract

The present application relates to the technical field of agricultural machinery equipment, and more particularly to a plug tray type fine onion seedling raising machine, which comprises a main frame arranged in a frame structure, wherein the main frame comprises a base profile frame, a wheel support and a wheel, an upper transport device, a lower transport device and a platform lifting device connecting the upper transport device and the lower transport device are arranged on the main frame, and a conveying device is installed on the main frame; a single-tray separating device, a primary soil covering and smoothing device, a seeding identification device and a secondary soil covering and smoothing device are sequentially installed on the upper layer of the main frame, and a plurality of seedling raising trays are placed in the single-tray separating device. The present application can automatically complete the separation of the seedling raising trays, soil covering, soil smoothing, fine seeding and tray pushing and landing at one time, greatly reduces the manpower and material resources, and improves the work efficiency.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and equipment technology, and in particular to a tray-type precision seedling machine for scallions. Background Technology

[0002] As a common condiment and vegetable, scallions have always received widespread attention for their cultivation and production. Currently, scallion cultivation is generally divided into two modes: one is intensive seedling raising, transplanting and planting; the other is traditional field seedling raising, seedling lifting, transplanting and planting.

[0003] The survey found that while existing scallion seedling machinery has made some progress, there are still problems such as high cost of large machinery, making it unsuitable for small and medium-sized farmers, and imperfect functions and low efficiency of small machinery, which cannot meet the development needs of seedling mechanization and industrialization. Summary of the Invention

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: large machinery is costly and unsuitable for small and medium-sized farmers, while small machinery has imperfect functions and low efficiency, which cannot meet the development needs of seedling mechanization and industrialization. Therefore, this invention proposes a tray-type precision seedling machine for scallions.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tray-type precision scallion seedling machine includes a main frame with a frame structure. The main frame includes a basic profile frame, a wheel bracket, and wheels. An upper transport device, a lower transport device, and a platform lifting device connecting the upper and lower transport devices are provided on the main frame. A conveying device is also installed on the main frame.

[0007] The upper layer of the main frame is sequentially equipped with a single-plate separation device, a primary soil covering and leveling device, a sowing identification device, and a secondary soil covering and leveling device. The single-plate separation device contains multiple seedling trays.

[0008] The single-disc separation device is located on one side of the upper transport device;

[0009] The single-stage soil covering and leveling device is located between the single-disc separation device and the seeding identification device;

[0010] The secondary soil covering and leveling device is located between the seeding identification device and the platform lifting device;

[0011] The platform lifting device is located on the side opposite to the single-disc separation device.

[0012] Preferably, the conveying device includes support blocks installed on both sides of the upper transport device and a conveyor belt that is attached to the upper part of the support blocks. A first driving wheel and a first driven wheel are respectively installed at both ends of the conveyor belt, and a first stepper motor is installed on the first driving wheel.

[0013] Preferably, the single-disc separation device includes a single-disc separation mechanism, a limiting device, and a first frame;

[0014] The single-disc separation includes multiple first servo motors, a load-bearing link, a long drop-disc link, a short servo motor drive link, a high-plane bearing seat, and a low-plane bearing seat. Servo motor mounting components are installed on all four sides of the first frame. Each first servo motor is fixedly connected inside the servo motor mounting component. The short servo motor drive link is connected to the first servo motor through a plastic main servo disc fixed to the servo motor support. The high-plane bearing seat and the low-plane bearing seat are alternately installed on the first frame. The load-bearing link is fixedly connected to the high-plane bearing seat and the low-plane bearing seat through a flange bearing in the central hole. One end of each long drop-disc link is connected to the short servo motor drive link through a flange bearing, and the other end is fixedly connected to two low-load-bearing links or two high-load-bearing links.

[0015] Preferably, the limiting device includes a left length limiting base and a right length limiting base, a width limiting block and a front baffle fixed to the left and right sides inside the first frame, for limiting and unifying the placement position of the seedling tray.

[0016] Preferably, the soil covering and smoothing device includes a second frame fixedly connected to the foundation profile frame, a soil storage box fixedly connected between the second frames, a soil dropping turntable, a second servo motor, a smoothing plate, a linear guide rail, a geared motor, a vertical support base, and a slider. The geared motor is fixedly connected to the left and right sides of the second frame via a geared motor support frame. The vertical support base is fixedly connected to the second frame. Flange seats are fixedly connected to the center of both sides of the soil dropping turntable. The flange seats and the vertical support base are fixedly connected via an optical axis, and after the fixed connection, the length of the optical axis exceeds the vertical support base. The excess part of the optical axis is connected to the motor shaft of the geared motor via a coupling. The second servo motor is fixedly connected to the second frame via a servo motor bracket. A servo motor disk is fixedly connected to the second servo motor. The servo motor disk is connected to the central gap of the smoothing plate via a transmission screw. The linear guide rail is fixedly connected to the left and right sides of the second frame. The slider cooperates with the guide rail. The smoothing plate is connected to the slider through holes on the left and right sides.

[0017] Preferably, the flange seat, optical shaft, motor shaft of the geared motor, and vertical support seat are concentric.

[0018] Preferably, the seeding identification device includes a servo motor, a servo motor mounting component I, a servo disc, a servo motor head, an upper seeding plate, a lower seeding plate, an L-shaped connector, an upper seeding plate support component I, an upper seeding plate support component II, a lower seeding plate support component, a first stepper motor, a first stepper motor connector, a synchronous belt, a first driving pulley, a driven pulley, a seeding bin, aluminum profile V, a first aluminum profile III, a first aluminum profile I, a support component I, and an upper seeding plate support component II;

[0019] The four aluminum profiles V are fixedly connected to the top of aluminum profile III via L-shaped connectors. They are arranged diagonally, forming a single group of aluminum profiles, divided into aluminum profile group I and aluminum profile group II. The second stepper motor is fixedly connected to aluminum profile group I via a stepper motor connector. The second driving wheel is connected to the second stepper motor. The second driven wheel is hinged to the inner side of aluminum profile group II via bolts. The synchronous belt meshes with the second driving wheel and the second driven wheel. The seeding bin is fixedly connected to the synchronous belts on both sides. The third servo motor is fixedly connected to the side of aluminum profile III via servo motor mounting piece I. The servo motor disk is rigidly connected to the third servo motor. The servo motor head is fixedly connected to the servo motor disk. Both the upper seeding plate and the lower seeding plate have equidistant circular holes with a diameter of 7mm.

[0020] Preferably, the platform lifting device includes a lifting push rod, a flange, a third stepper motor, a second synchronous belt, a third driving wheel, a third driven wheel, a large push rod, a large push rod connector, a platform plate, and multiple lifting push rod connectors;

[0021] Multiple lifting push rod connectors are fixedly connected to the left, right, and rear directions of the aluminum profile frame. The lifting push rod is fixedly connected to three lifting push rod connectors. The flange is fixedly connected to the platform plate. The head of the lifting push rod is fixedly connected to the flange. The third driving wheel and the third driven wheel are hinged to the platform plate through holes. The second synchronous belt meshes with the third driving wheel and the third driven wheel. The third driving wheel is rigidly connected to the third stepper motor. The large push rod is fixed to the bottom of the platform plate through the large push rod connector and the holes arranged in the platform plate.

[0022] Preferably, the lower transport device includes a bottom main board, a main board tilting device, and a propulsion device;

[0023] The mainboard is fixedly connected to the main frame via door leaves;

[0024] The main board tilting device includes a push rod, a lifting sheet metal, an arc-shaped unloading hook, a main board, and a push rod fixing component. The push rod is fixedly connected in the push rod fixing component. There are two push rod fixing components, one on the left and one on the right, which are fixedly connected to the side of the main frame respectively. The lower side of the lifting sheet metal is provided with a hole, which is fixedly connected to the main board by bolts and nuts. The side of the lifting sheet metal has a large hole, and the arc-shaped unloading hook passes through the large hole of the lifting sheet metal. The push rod and the lifting sheet metal are connected by the arc-shaped unloading hook.

[0025] The propulsion device includes a rolling lead screw and a lead screw connecting plate. The rolling lead screw is fixedly connected to the left and right sides of the main board through a rolling lead screw support. A T-shaped metal block is installed on the rolling lead screw, and the lead screw connecting plate is connected to the T-shaped metal blocks on both sides through a connecting plate.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] A single-plate separation device sequentially separates multiple stacked seedling trays into one tray. A conveyor belt propulsion device moves the seedling trays from the single-plate separation device to the secondary soil covering and leveling device, i.e., from left to right. During the movement of the seedling trays, the primary soil covering and leveling device adds and levels the substrate soil during sowing. A precision seeding and identification device enables precise sowing of the seedling trays, while a camera above the device performs visual identification to monitor the quantity and location of the seeds. The secondary soil covering and leveling device covers and levels the soil after sowing. The unified movement of the conveyor belt in the conveyor belt propulsion device and the platform lifting device moves the seedling trays to the platform lifting device. The platform lifting device lowers the seedling trays from the upper layer to the lower layer. The cooperation between the conveyor belt and the electric push rod in the platform lifting device moves the seedling trays from the platform lifting device to the lower transport device. The bottom main board is tilted by the tilting device in the lower transport device; the seedling tray is moved from the lower transport device to the ground by the propulsion device, so as to complete the separation of the seedling tray, covering and leveling of the soil, precise sowing and landing of the seedling tray in one go.

[0028] 1. The seeding trays work together with the switches to ensure that the seedling trays fall precisely onto the conveyor belt one by one to complete the subsequent operations.

[0029] 2. By using two roller rotations, the soil is filled during sowing and the pelleted seeds are buried, making the operation simple and efficient.

[0030] 3. The double-layer seed distribution board works in conjunction with the seeding chamber to achieve precise sowing, improve sowing efficiency and seedling success rate.

[0031] 4. By utilizing the precision of the seed distribution board, the hole-digging process of traditional tray sowing is simplified. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a structural diagram of the seedling tray of the present invention;

[0034] Figure 3 This is a schematic diagram of the main framework structure of the present invention;

[0035] Figure 4 This is a schematic diagram of the support block structure in the main frame of the present invention;

[0036] Figure 5 This is a schematic diagram of the single-disc separation device of the present invention;

[0037] Figure 6 This is a schematic diagram of the soil covering and leveling device of the present invention;

[0038] Figure 7 This is a schematic diagram of the soil-falling turntable structure in the soil-covering and smoothing device of the present invention;

[0039] Figure 8 This is a schematic diagram of the seed identification device of the present invention;

[0040] Figure 9 This is a schematic diagram of the sowing chamber structure in the sowing identification device of the present invention;

[0041] Figure 10 This is a schematic diagram of the platform lifting device of the present invention;

[0042] Figure 11 This is a schematic diagram of the lower-level transport device structure of the present invention.

[0043] In the diagram: 100—Main frame, 200—Single tray separation device, 300—Soil covering and leveling device, 400—Sowing identification device, 500—Platform lifting device, 600—Secondary soil covering and leveling device, 700—Lower layer transportation device, 150—Seedling tray, 101—Wheel, 102—Wheel bracket, 103—Basic profile frame, 104—Driven wheel, 105—Support block, 106—Conveyor belt, 107—First driving wheel, 108—First stepper motor, 109—Motor bracket, 150—Seedling tray, 202—Plate dropping long connecting rod, 203—Flange bearing, 205—Bearing connecting rod, 207—Flat high bearing seat, 208—Bearing connecting rod, 209—Front 211—Baffle, 212—Planar low bearing seat, 215—Length limit block slider, 216—Left length limit base, 217—Low load-bearing connecting rod, 218—Servo motor mounting part, 219—Servo motor drive short rod, 220—Width limit block, 221—Right length limit base, 222—First frame, 223—Width limit block, 301—Soil storage box, 302—Second frame, 304—Flange seat, 305—Vertical support base, 306—Gear motor, 307—Gear motor support frame, 308—Soil dropping turntable, 309—Linear guide rail, 310—Slider, 311—Coupling, 313—Plate, 314—Servo motor bracket, 315—Transmission screw 316—Second servo motor, 317—Servo motor disc, 401—First aluminum profile I, 402—Second stepper motor, 403—First synchronous belt, 404—Plastic main servo motor disc, 405—Servo motor mounting part I, 407—Second driven wheel, 409—Seed bin, 410—Second driving wheel, 411—Stepper motor connector, 412—Upper seeding plate support part I, 414—Lower seeding plate slider, 416—Servo motor head, 418—Third servo motor, 420—Lower seeding plate, 421—L-shaped connector, 422—Upper seeding plate support part II, 423—Upper seeding plate, 424—Aluminum profile III, 426—Aluminum profile V, 501—Second aluminum profile I, 502—Second Aluminum Profile II, 503—Second Aluminum Profile III, 504—Motor Bracket, 505—Conveyor Belt Support Block, 506—Lifting Push Rod, 507—Large Push Rod Connector, 508—Large Push Rod, 509—Third Stepper Motor, 510—Second Synchronous Belt, 511—Third Drive Wheel, 512—Platform Plate, 513—Flange, 514—Third Drive Wheel, 515—Lifting Push Rod Connector, 701—Main Board, 703—Push Rod Fixing Part, 704—Push Rod, 706—Screw Connecting Plate, 707—Bow-shaped Unloading Hook, 708—Lifting Sheet Metal, 709—Rolling Screw, 710—Rolling Screw Support Part, 711—T-shaped Metal Block, 712—Connecting Plate, 713—Door Leaf. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0045] The terms used in this invention, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0046] Reference Figure 1-11 In this embodiment, the seedling tray 150 is used to hold soil and pelleted seeds. The seedling tray 150 is provided with tray supports around its perimeter to fit onto the conveyor belt and move the seedling tray 150 forward.

[0047] A precision seedling machine for scallions using a tray type includes a main frame 100, a single tray separation device 200, a primary soil covering and leveling device 300, a sowing identification device 400, and a secondary soil covering and leveling device 600 sequentially installed on the upper transport device of the main frame 100, a lower transport device 700 installed on the main frame 100, and a platform lifting device 500 connecting the upper transport device and the lower transport device 700.

[0048] The main frame 100 is the structural frame of the whole machine, which is used to support the various components and transport the seedling trays 150 from left to right to the various parts of the upper transport device. The main frame 100 includes the upper transport device, the lower transport device 700 and the rightmost platform lifting device 500.

[0049] The single-tray separation device 200 is located on the far left of the upper transport device of the whole machine, and is used to drop the seedling trays 150 one by one onto the conveyor belt of the main frame 100.

[0050] The soil covering and leveling device 300 is located between the single-disc separation device 200 and the sowing identification device 400, and completes the covering and leveling of the soil in the seedling tray 150 before sowing; the sowing identification device 400 is located in the middle of the whole machine and is used for precision sowing of pelleted seeds.

[0051] The secondary soil covering and leveling device 600 is located between the seed identification device 400 and the platform lifting device 500, and is used to cover and level the planted pellet seeds with soil.

[0052] The platform lifting device 500 is located on the far right of the machine and is used to connect the upper transport device and the lower transport device 700 to transfer the seedling trays 150 from the upper transport platform to the lower transport device 700. The lower transport device 700 is located below the upper transport platform and is used to neatly transport the seedling trays that have achieved precision sowing to the ground.

[0053] Specifically, the upper transport device of the main frame 100 is fixedly connected to both sides with multiple support blocks 105 and a conveyor belt 106 that is attached to the upper part of the support blocks 105. The conveyor belt 106 meshes with the first driving wheel 107 on the far left and the first driven wheel 104 on the right side of the whole machine. The first driving wheel 107 is driven by the first stepper motor 108, which provides power for the transmission of the upper transport platform of the seedling tray 150.

[0054] When the machine starts working, turn on the power switch and place multiple seedling trays 150 into the single-tray separation device 200. The single-tray separation device 200 separates each seedling tray 150 and drops it onto the conveyor belt 106. Driven by the conveyor belt 106, the seedling trays 150 move to the primary soil covering and leveling device 300. The rotation of the soil-dropping turntable 308 disposes soil from the soil storage box 301 into the seedling trays 150. As the conveyor belt 106 continues to move, the up-and-down movement of the leveling plate 313 smooths the soil in the seedling trays 150. Then, after the seedling trays 150 reach the sowing identification device 400, the back-and-forth movement of the sowing bin 409 drops the pelleted seeds into the upper seed-seedling plate 423, and the movement of the upper seed-seedling plate 423 precisely sows the pelleted seeds into the seedling trays 150. The seedlings are then raised... The seedling tray 150 is transported to the secondary soil covering and leveling device 600, where the soil is covered and leveled after sowing via a soil-falling turntable and a leveling plate. The seedling tray 150 is then transported to the conveyor belt 510 of the platform lifting device 500. The lifting push rod 506 moves the seedling tray 150 from the upper transport platform to the lower transport platform. After the platform lifting device returns to its initial height, the large push rod 508 below it moves, pushing the seedling tray 150 to the left side of the lower transport device 700 platform, facilitating the landing of the next seedling tray. Once three seedling trays are arranged on the lower transport device 700, the push rod 704 and the rolling screw 709 of the lower transport device 700 work together to transport the seedling tray 150 to the ground, and the machine moves forward to begin the next cycle. When the platform lifting device 500 starts running, the single-tray separation device 200 starts running again, improving machine efficiency.

[0055] The main frame 100 includes a basic profile frame 103, wheel brackets 102, wheels 101, and a conveying device. The wheels 101 are rotatably connected to the wheel brackets 102. The conveying device includes a conveyor belt 106, a first driving wheel 107, a first driven wheel 104, support blocks 105, a motor bracket 109, and a first stepper motor 108. The basic profile frame 103 is the structural frame of the entire machine, used to support various components. The wheels 101 are divided into front drive wheels and rear driven wheels, providing power for the forward movement of the entire machine, and are installed at the bottom of the basic profile frame 103. The motor 108 is installed on the side of the basic profile frame 103 and connected to the first driving wheel 107. Through cooperation with the conveyor belt 106 and the first driven wheel 104, the seedling trays can be conveyed to various parts of the upper transport platform. The support blocks 105 are evenly installed inside the conveyor belt 106 to support the tray supports of the seedling trays.

[0056] The single-disc separation device 200 includes a single-disc separation mechanism, a limiting device, and a first frame 222. The first frame 222 is installed on the upper left side of the main frame 100.

[0057] The limiting device includes a left length limiting base 215 and a right length limiting base 221, width limiting blocks 220 and 223, and a front baffle 209, which are fixedly connected to the left and right sides inside the first frame 222, and are used to limit and unify the placement position of the seedling tray.

[0058] The single-disc separation includes a first servo motor 218, a load-bearing link 208, a drop-disc long link 202, a servo motor drive short link 219, a flat high bearing seat 207, and a flat low bearing seat 211. The four first servo motors 218 are fixedly connected inside the servo motor mounting component 217. The servo motor mounting component 217 is fixedly connected to the four sides of the first frame 222. The servo motor drive short link 219 is connected to the first servo motor 218 through a plastic main servo motor disc 404 fixedly connected to the servo motor support.

[0059] The high-profile bearing housing 207 and the low-profile bearing housing 211 are alternately installed on the first frame 222 and fixed by bolts and nuts. The load-bearing connecting rod 208 is fixedly connected to the high-profile bearing housing 207 and the low-profile bearing housing 211 in the central hole by flange bearing 203. The long connecting rod 202 of the drop plate is fixedly connected to the servo drive short rod 219 and the two low-load-bearing connecting rods 216 or the two high-load-bearing connecting rods 208 at the same time by flange bearing 203.

[0060] Specifically, in the initial state of the entire machine, the seedling tray 150 is placed on the high-load-bearing connecting rods 208 on both sides via side supports, achieving the initial limit of the seedling tray 150; the upper first servo motor 218 transmits power to the servo drive short rod 219 through the plastic main servo motor disk 404, driving the movement of the lowering long connecting rod 202, thereby driving the high-load-bearing connecting rod 208 to perform a "closing" movement, realizing the overall lowering of the seedling tray 150 onto the low-load-bearing connecting rod 216, while the upper first servo motor 218 advances... The process reverses direction to achieve a "spreading" motion. At this time, the high-load-bearing connecting rod 208 is between the bottom seedling tray and the second-to-last seedling tray, achieving a separation effect. The lower first servo motor 218 operates, driving the low-load-bearing connecting rod 216 to perform a "closing" motion, so that the seedling tray 150 falls onto the conveyor belt 106 of the main frame 100. The lower first servo motor 218 reverses direction, and the low-load-bearing connecting rod 216 performs a "spreading" motion, completing one cycle and achieving single-tray separation of the seedling tray 150.

[0061] The soil covering and smoothing device 300 includes a second frame 302 fixedly connected to the base profile frame 103, a soil storage box 301, a soil dropping turntable 308, a second servo motor 316, a smoothing plate 313, a linear guide rail 309, and a geared motor 306 fixedly connected between the second frames 302. The geared motor 306 is fixedly connected to the left and right sides of the second frame 302 via a geared motor support frame 307 using bolts and nuts. A space exists in the middle of the geared motor support frame 307, through which a vertical support base 305 is fixedly connected to the second frame 302. Flange seats 304 are fixedly connected to the center of both sides of the soil dropping turntable 308. The flange seats 304 and the vertical support base 305 are fixedly connected via an optical shaft, and after the fixed connection, the length of the optical shaft exceeds that of the vertical support base 305. The flange seats 304, the optical shaft, the motor shaft of the geared motor 306, and the vertical support base 305 are concentric. The portion of the optical shaft extending beyond the vertical support base 306 is concentric with the geared motor 306. The motor shaft of 6 is connected by coupling 311. The second servo motor 316 is fixedly connected to the second frame 302 by servo motor bracket 314 and fixed by bolts and nuts. A servo motor disk 317 is fixedly connected to the second servo motor 316. The servo motor disk 317 is connected to the central gap of the squeegee plate 313 by transmission screw 315. The transmission screw 315 rotates on the servo motor and moves horizontally on the squeegee plate 313. The linear guide rail 309 is fixedly connected to the vertical short profiles on the left and right sides of the second frame 302. The slider 310 cooperates with the guide rail 309. The squeegee plate 313 is connected to the slider 310 through holes on the left and right sides.

[0062] Specifically, the soil covering and leveling device 300 is located between the single-disc separation device 200 and the sowing identification device 400. It is the next step after the single-disc separation device 200, providing soil to the seedling tray 150 and leveling it to provide substrate for the next sowing step. The soil storage box 301 is enclosed on all four sides with a hollow center, facilitating soil addition and storage. The soil dropping turntable 308 is circular with enclosed sides and a hole at the center connecting to the flange seat 304. Five folded partitions separate the space between the two enclosed plates, ensuring that the amount of soil falling is the same each time the soil dropping turntable 308 rotates to a fixed angle. The soil dropping turntable 308 fits against the lower side of the soil storage box 301, effectively storing soil while preventing unnecessary soil from falling, achieving precise soil dropping. When the seedling tray 150 below arrives and leaves, the sizing plate moves in a circular motion via the servo motor disc 317, which drives the servo motor support 314. At this time, the transmission screw 315 also moves in a circular motion relative to the second servo motor 316. Relative to the sizing plate 313, this can be decomposed into up-and-down and left-and-right movements. That is, the movement of the transmission screw 315 realizes the up-and-down movement of the sizing plate 313, enabling the sizing plate 313 to enter and maintain an appropriate height of soil leveling and removal when the seedling tray 150 arrives and leaves.

[0063] The seeding identification device 400 includes a third servo motor 418, servo motor mounting part I 405, servo motor disk 404, servo motor head 416, upper seeding plate 423, lower seeding plate 420, L-shaped connector 421, upper seeding plate support part I 412, upper seeding plate support part II 422, lower seeding plate slider 414, second stepper motor 402, stepper motor connector 411, first synchronous belt 403, second driving wheel 410, second driven wheel 407, and seeding bin 409.

[0064] Specifically, four aluminum profiles V426 are fixedly connected to the top of aluminum profile III424 via L-shaped connectors 421. They are arranged diagonally in the same group, divided into aluminum profile group I and aluminum profile group II. The second stepper motor 402 is fixedly connected to aluminum profile group I via stepper motor connector 411. The second drive wheel 410 is connected to the second stepper motor 402. The second driven wheel 407 is bolted to the inner side of aluminum profile group II. The first synchronous belt 403 meshes with the second drive wheel 410 and the second driven wheel 407. The seeding bin 409 is fixedly connected to the first synchronous belts 403 on both sides. The second stepper motor 402 can drive the seeding bin 409 to reciprocate.

[0065] The third servo motor 418 is fixedly connected to the side of the aluminum profile III 424 via servo motor mounting part I 405. The servo motor disk 404 is rigidly connected to the third servo motor 418. The servo motor head 416 is fixedly connected to the servo motor disk 404. The servo motor and its connecting parts are fixedly connected to both sides of the aluminum profile III 424 and the first aluminum profile I 401, respectively. The lower seeding plate 420 is fixed in position via the lower seeding plate slider 414 fixedly connected to the aluminum profile III 424 and the first aluminum profile I 401 on the left and right sides. The upper seeding plate 423 is fixed in position via the upper seeding plate support part I 412 and the upper seeding plate support part II 422 fixedly connected to the aluminum profile III 424 and the first aluminum profile I 401. The third servo motor 418 can control the servo head 416 to drive the lower seeding plate 420 to move back and forth. Both the upper seeding plate 423 and the lower seeding plate 414 have equidistant circular holes with a diameter of 7mm, which is approximately the diameter of the pelleted seed. During the movement of the lower seeding plate 420, there will be two states: overlapping and non-overlapping. In the "overlapping" state, the pelleted seed can fall from the upper seeding plate 423 into the lower seeding plate 420 and enter the seedling tray below. In the "non-overlapping" state, the pelleted seed is blocked by the non-perforated part of the lower seeding plate 420 and cannot enter the seedling tray below. The initial state is the "non-overlapping" state. A camera is located above the device to capture the number of seeds on the upper seeding plate 423. When the seedling tray 150 reaches the appropriate seeding position, the second stepper motor 402 drives the seeding chamber 409 to reciprocate, and the pelleted seeds fall into the holes of the upper seeding plate 423. When the number of seeds filled reaches a specified threshold as captured by the camera, the third servo motor 418 drives the lower seeding plate 420. When the upper seeding plate 423 and the lower seeding plate 420 reach an "overlapping" state, the seeds fall into the soil inside the seedling tray 150, thus achieving seeding.

[0066] The platform lifting device 500 includes a lifting push rod 506, a flange 513, a conveyor belt support block 505, a third stepper motor 509, a motor bracket 504, a second synchronous belt 510, a third driving wheel 511, a third driven wheel 514, a large push rod 508, a large push rod connector 507, a platform plate 512, and second aluminum profiles I 501, II 502, III 503, and IV for connection.

[0067] Specifically, three lifting push rod connectors 515 are fixedly connected to the left, right, and rear directions of the aluminum profile frame, respectively. Lifting push rods 506 are fixedly connected to the three lifting push rod connectors 515. Flanges 513 are fixedly connected to the platform plate 512, and the heads of the lifting push rods 506 are fixedly connected to the flanges 513. Under the action of the three lifting push rods 506, the platform plate 512 can be raised and lowered. Above the platform plate 512, the third driving wheel 511 and the third driven wheel 514 are hinged to the platform plate 512 through holes, respectively. The second synchronous belt 510 meshes with the third driving wheel 511 and the third driven wheel 514. The third driving wheel 511 is rigidly connected to the third stepper motor 509. Stepper motor 509 is fixed to platform plate 512 via motor bracket. Large push rod 508 is fixed below platform plate 512 via large push rod connector 507 and holes arranged in platform plate 512. Third stepper motor 509 drives forward to bring seedling tray 150 into lifting platform 500. Three lifting push rods 506 extend, platform plate 512 enters the lower layer. Third stepper motor 509 drives in reverse to push seedling tray 150 into lower transport device 700. Three lifting push rods 506 shorten, large push rod 508 located below platform plate 512 extends to push seedling tray 150 to the designated position. Finally, large push rod 508 shortens, completing one lifting of seedling tray 150.

[0068] The lower transport device 700 includes a bottom main board 701, a main board tilting device, and a propulsion device.

[0069] The motherboard 701 is fixedly connected to the main frame 100 via the door leaf 713.

[0070] The mainboard tilting device includes a push rod 704, a lifting sheet metal 708, an arc-shaped unloading hook 707, a push rod fixing component 703, and a mainboard 701. The push rod 704 is fixedly connected to the push rod fixing component 703. There are two push rod fixing components 703, one on the left and one on the right, which are fixedly connected to the sides of the main frame 100 by bolts and nuts. The lower side of the lifting sheet metal 708 has a hole, which is fixedly connected to the mainboard 701 by bolts and nuts. The side of the lifting sheet metal 708 has a large hole, and the arc-shaped unloading hook 707... The push rod 701 passes through the large hole of the lifting sheet metal 708 and is connected to the lifting sheet metal 708 by the bow-shaped unloading hook 707. The pushing device includes a rolling screw 709 and a screw connecting piece 706. The rolling screw 709 is fixedly connected to the left and right sides of the main board 701 by the rolling screw support 710. T-shaped metal blocks 711 are installed on the rolling screw 709. The screw connecting piece 706 is connected to the T-shaped metal blocks 711 on both sides by the connecting piece 712 and is fixedly connected by bolts and nuts.

[0071] Specifically, the lower transport device 700 is located on the left side of the second layer of the machine. It serves as a connection between the seedling tray 150 and the ground after various sowing operations, via the platform lifting device 500, when the tray is lowered to the second-layer platform and placed on the ground. It also acts as a propulsion device for placing the seedling tray 150 on the ground. The length of the lead screw connecting piece 706 is set to be the same as the distance between the two rolling lead screws 709. At this time, the installation angle between the connecting piece 712 and the lead screw connecting piece 706 is 90°, and the connecting piece 712 is in a vertical position. This ensures that the height of the lead screw connecting piece 150 when pushing the seedling tray 150 is lower than... The tray support of the seedling tray 150 will not rub against the main board 701 to prevent increased friction during advancement. After the lower transport device 700 has stored three seedling trays 150 that have completed the sowing operation on the second transport platform, it starts to operate. The push rod 704 pulls back, the main board 701 begins to tilt, and after the push rod 704 rises to the highest point, the rolling screw 709 starts to run. It uses the connecting piece 712 for transmission, so that the screw connecting piece 706 pushes the seedling tray 150 onto the ground. Then the rolling screw 709 and the push rod 704 rotate in opposite directions at the same time to return the main board 701 and the screw connecting piece 706 to their original positions.

[0072] Once the lower transport device 700 completes its work and the entire machine completes one cycle, it moves forward a distance equal to the length of the seedling tray 150 and begins the second cycle.

[0073] This embodiment of the precision seedling machine for scallions using a tray-type planting system can automatically complete the separation, covering, leveling, precision sowing, and tray placement in one operation, significantly reducing manpower and material resources and improving work efficiency. A single-tray separation device separates multiple stacked seedling trays into one tray at a time. A conveyor belt propulsion device moves the seedling trays from the single-tray separation device to the secondary covering and leveling device, i.e., from left to right. During the movement of the seedling trays, the primary covering and leveling device adds and levels the substrate soil during sowing. A precision sowing and identification device enables precise sowing of the seedling trays, while a camera above the device performs visual recognition to monitor the quantity and location of the sown seeds. The secondary covering and leveling device covers and levels the soil after sowing. The unified movement of the conveyor belt in the conveyor belt propulsion device and the platform lifting device moves the seedling trays to the platform lifting device; the platform lifting device then lowers the seedling trays from the upper layer to the lower layer. The seedling trays are moved from the platform lifting device to the lower transport device through the cooperation of the conveyor belt and electric push rod. The bottom main board of the lower transport device is tilted by the tilting device; the seedling trays are moved from the lower transport device to the ground by the propulsion device, thus realizing the one-time completion of single tray separation, soil covering and leveling, precise sowing and landing of the seedling trays.

[0074] In this invention, unless otherwise explicitly specified and limited, the terms “installation,” “connection,” “linking,” “fixing,” etc., should be interpreted broadly.

[0075] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tray-type precision seedling machine for scallions, comprising a main frame (100) arranged in a frame structure, wherein the main frame (100) includes a basic profile frame (103), characterized in that, The main frame (100) is provided with an upper transport device, a lower transport device (700) and a platform lifting device (500) connecting the upper transport device and the lower transport device (700). The main frame (100) is also equipped with a conveying device. The upper layer of the main frame (100) is sequentially equipped with a single-plate separation device (200), a primary soil covering and leveling device (300), a sowing identification device (400), and a secondary soil covering and leveling device (600). The single-plate separation device (200) contains multiple seedling trays (150). The single-disc separation device (200) is located on one side of the upper transport device; the single-disc separation device (200) includes a single-disc separation device, a limiting device and a first frame (222). The single-disc separation device includes multiple first servo motors (218), a supporting link (208), a lowering long link (202), a servo motor drive short link (219), a flat high bearing seat (207), and a flat low bearing seat (211). Servo motor mounting parts (217) are installed on all four sides of the first frame (222). Each first servo motor (218) is fixedly connected inside the servo motor mounting part (217). The servo motor drive short link (219) is connected to the first servo motor (218) via a plastic main servo disc (210) fixed to the servo motor support. 218) Connection, the planar high bearing seat (207) and the planar low bearing seat (211) are alternately installed on the first frame (222), the bearing connecting rod (208) is fixedly connected to the planar high bearing seat (207) and the planar low bearing seat (211) through the flange bearing (203) in the central hole, one end of the drop plate long connecting rod (202) is connected to the servo drive short rod (219) through the flange bearing (203), and the other end is fixedly connected to two low bearing connecting rods (216) or two high bearing connecting rods (208); The first-stage soil covering and leveling device (300) is located between the single-disc separation device (200) and the seeding identification device (400); the soil covering and leveling device (300) includes a second frame (302) fixedly connected to the basic profile frame (103), a soil storage box (301) fixedly connected between the second frames (302), a soil dropping turntable (308), a second servo motor (316), a smoothing plate (313), a linear guide rail (309), a reduction motor (306), a vertical support base (305), and a slider (310). The reduction motor (306) is fixedly connected to the left and right sides of the second frame (302) through a reduction motor support frame (307). The vertical support base (305) is fixedly connected to the second frame (302). Flange seats are fixedly connected to the center of both sides of the soil dropping turntable (308). 304), the flange seat (304) and the vertical support seat (305) are fixedly connected by an optical axis, and the length of the optical axis exceeds the vertical support seat (305) after the fixed connection. The excess part of the optical axis is connected to the motor shaft of the geared motor (306) through a coupling (311). The second servo motor (316) is fixedly connected to the second frame (302) through a servo motor bracket (314). A servo motor disk (317) is fixedly connected to the second servo motor (316). The servo motor disk (317) is connected to the central gap of the squeegee plate (313) through a transmission screw (315). The linear guide rail (309) is fixedly connected to the left and right sides of the second frame (302). The slider (310) cooperates with the guide rail (309). The squeegee plate (313) is connected to the slider (310) through holes on the left and right sides. The seeding identification device (400) includes a third servo motor (418), servo motor mounting part I (405), plastic main servo motor disc (404), servo motor head (416), upper seeding plate (423), lower seeding plate (420), L-shaped connector (421), upper seeding plate support part I (412), upper seeding plate support part II (422), lower seeding plate support part (414), second stepper motor (402), first stepper motor connector (411), synchronous belt (403), second drive wheel (410), second driven wheel (407), seeding bin (409), aluminum profile V, aluminum profile III (424), and first aluminum profile I (401). Four aluminum profiles V (426) are fixedly connected to aluminum profile III (424) above by L-shaped connectors (421). The aluminum profiles are divided into aluminum profile group I and aluminum profile group II in diagonal directions. The second stepper motor (402) is fixedly connected to aluminum profile group I by the first stepper motor connector (411). The second drive wheel (410) is connected to the second stepper motor (402). The second driven wheel (407) is hinged to the inner side of aluminum profile group II by bolts. The synchronous belt (403) is connected to the second drive wheel. (410) meshes with the second driven wheel (407), the seeding bin (409) is fixedly connected to the synchronous belts (403) on both sides, the third servo motor (418) is fixedly connected to the side of the aluminum profile III (424) through the servo motor mounting part I (405), the plastic main servo motor disk (404) is just connected to the third servo motor (418), the servo motor head (416) is fixedly connected to the plastic main servo motor disk (404), the upper seeding plate (423) and the lower seeding plate (420) both have equidistant round holes, the diameter of the round holes is 7mm; The secondary soil covering and leveling device (600) is located between the seeding identification device (400) and the platform lifting device (500); The platform lifting device (500) is located on the side opposite to the single-disc separation device (200); The lower transport device (700) includes a bottom main board (701), a main board tilting device, and a propulsion device; The main board (701) is fixedly connected to the main frame (100) via the door leaf (713); The main board tilting device includes a push rod (704), a lifting sheet metal (708), an arc-shaped unloading hook (707), a main board (701), and a push rod fixing component (703). The push rod (704) is fixedly connected in the push rod fixing component (703). There are two push rod fixing components (703) on the left and right sides, which are respectively fixedly connected to the side of the main frame (100). The lower side of the lifting sheet metal (708) is provided with a hole, which is fixedly connected to the main board (701) by bolts and nuts. The side of the lifting sheet metal (708) has a large hole. The arc-shaped unloading hook (707) passes through the large hole of the lifting sheet metal (708). The push rod (704) and the lifting sheet metal (708) are connected by the arc-shaped unloading hook (707). The propulsion device includes a rolling screw (709) and a screw connecting piece (706). The rolling screw (709) is fixedly connected to the left and right sides of the main board (701) through a rolling screw support (710). A T-shaped metal block (711) is installed on the rolling screw (709). The screw connecting piece (706) is connected to the T-shaped metal blocks (711) on both sides through a connecting piece (712).

2. The precision seedling machine for scallions in a tray type according to claim 1, characterized in that... The conveying device includes support blocks (105) installed on both sides of the upper transport device and a conveyor belt (106) attached to the upper part of the support blocks (105). The two ends of the conveyor belt (106) are respectively equipped with a first driving wheel (107) and a first driven wheel (104). A first stepper motor (108) is installed on the first driving wheel (107).

3. The precision seedling machine for scallions in a tray type according to claim 1, characterized in that, The limiting device includes a left length limiting base (215) and a right length limiting base (221) fixed to the left and right sides inside the first frame (222), width limiting blocks (220) and (223) and a front baffle (209).

4. The precision seedling machine for scallions in a plug tray as described in claim 1, characterized in that, The flange seat (304), optical shaft, motor shaft of geared motor (306) and vertical support seat (305) are all concentric.

5. A tray-type precision seedling machine for scallions according to claim 1, characterized in that, The platform lifting device (500) includes a lifting push rod (506), a flange (513), a third stepper motor (509), a second synchronous belt (510), a third drive wheel (511), a third driven wheel (514), a large push rod (508), a large push rod connector (507), a platform plate (512), and multiple lifting push rod connectors (515). Multiple lifting push rod connectors (515) are fixedly connected to the three directions of the aluminum profile frame. The lifting push rod (506) is fixedly connected to the three lifting push rod connectors (515). The flange (513) is fixedly connected to the platform plate (512). The head of the lifting push rod (506) is fixedly connected to the flange (513). The third driving wheel (511) and the third driven wheel (514) are hinged to the platform plate (512) through holes. The second synchronous belt (510) meshes with the third driving wheel (511) and the third driven wheel (514). The third driving wheel (511) is rigidly connected to the third stepper motor (509). The large push rod (508) is fixed to the bottom of the platform plate (512) through the large push rod connector (507) and the holes arranged in the platform plate (512).

Images