Plug type green Chinese onion precision seedling raising machine

Abstract

The invention relates to the technical field of agricultural mechanical equipment, in particular to a plug-type green Chinese onion precision seedling raising machine which comprises a main frame of a frame structure, and the main frame comprises a basic profile frame, a wheel support and wheels. An upper-layer transportation device, a lower-layer transportation device and a platform lifting device connected with the upper-layer transportation device and the lower-layer transportation device are arranged on the main frame, and a conveying device is further mounted on the main frame; the upper layer of the main frame is sequentially provided with a single-tray separating device, a primary earthing and trowelling device, a seeding recognition device and a secondary earthing and trowelling device, and a plurality of seedling raising trays are placed in the single-tray separating device. According to the invention, separation, soil covering, soil flattening, precision seeding and tray pushing and landing work of the seedling raising tray can be automatically completed at one time, manpower and material resources are greatly reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery and equipment, and in particular to a plug-tray type green onion precision seedling raising machine. Background Art

[0002] As a common condiment and vegetable, the cultivation and production of green onions have always received widespread attention. At present, the cultivation of green onions is generally divided into two planting modes. One is intensive onion seedling cultivation and transplanting and planting; the other is traditional field seedling cultivation, seedling removal, transplanting and planting operations.

[0003] The investigation found that the existing onion seedling machinery has achieved certain development, but there are still problems such as large machinery has high costs and is not suitable for small and medium-sized farmers, and small machinery has imperfect functions and low efficiency, which cannot meet the development needs of seedling mechanization and industrialization. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art: large machinery has high cost and is not suitable for small and medium-sized farmers, small machinery has imperfect functions and low efficiency, and cannot meet the development needs of mechanization and industrialization of seedling cultivation. A plug-type green onion precision seedling machine is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A plug tray type green onion precision seedling raising machine, comprising a main frame arranged in a frame structure, the main frame comprising 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 transport device and the lower transport device are arranged on the main frame, and a conveying device is also installed on the main frame;

[0007] The upper layer of the main frame is sequentially installed with a single-disc separation device, a primary soil covering and smoothing device, a sowing identification device, and a secondary soil covering and smoothing device, and a plurality of seedling trays are placed in the single-disc separation device;

[0008] Wherein, the single-disk separation device is located on one side of the upper transport device;

[0009] The one-time soil covering and leveling device is located between the single-disk separation device and the sowing identification device;

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

[0011] The platform lifting device is located on a side away from the single-disk separation device.

[0012] Preferably, the conveying device includes support blocks installed on both sides of the upper transport device and a conveyor belt attached to the upper part of the support blocks, and 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-disk separation device comprises a single-disk separation, a limiting device and a first frame;

[0014] The single-disk separation comprises a plurality of first servos, a load-bearing connecting rod, a long connecting rod for dropping a plate, a short servo drive rod, a plane high bearing seat and a plane low bearing seat. The four sides of the first frame are all installed with servo mounting parts, and each of the first servos is fixedly connected to the inside of the servo mounting parts. The short servo drive rod is connected to the first servo through a plastic main servo disc fixedly connected to the servo support. The plane high bearing seat and the plane low bearing seat are alternately installed on the first frame. The load-bearing connecting rod is fixedly connected to the plane high bearing seat and the plane low bearing seat through a flange bearing in the center hole. One end of the long connecting rod for dropping a plate is connected to the short servo drive rod through a flange bearing, and the other end is fixedly connected to two low load-bearing connecting rods or two high load-bearing connecting rods.

[0015] Preferably, the limiting device includes a left length limiting base and a right length limiting base fixed to the left and right sides of the first frame, a width limiting block and a front baffle, which are used to limit and unify the placement position of the seedling tray.

[0016] Preferably, the soil covering and smoothing device includes a second frame fixedly connected to the basic profile frame, a soil storage box fixedly connected between the second frames, a soil drop turntable, a second servo, a trowel plate, a linear guide, a reduction motor, a vertical support seat, and a slider. The reduction motor is fixedly connected to the left and right sides of the second frame through the reduction motor support frame, the vertical support seat is fixedly connected to the second frame, the two sides of the soil drop turntable are fixedly connected to the center of the flange seat, the flange seat is fixedly connected to the vertical support seat through an optical axis, and after the fixed connection, the length of the optical axis exceeds the vertical support seat, the excess part of the optical axis is connected to the motor shaft of the reduction motor through a coupling, the second servo is fixedly connected to the second frame through a servo support, a servo disc is fixedly connected to the second servo, the servo disc is connected to the central gap of the trowel plate through a transmission screw, the linear guide is fixedly connected to the left and right sides of the second frame, the slider cooperates with the guide rail, and the trowel plate is connected to the slider through holes on the left and right sides.

[0017] Preferably, the flange seat, the optical axis, the motor shaft of the reduction motor and the vertical support seat are cocentric.

[0018] Preferably, the sowing identification device includes a steering gear, a steering gear mounting part I, a steering disc, a steering gear head, an upper sorting plate, a lower sorting plate, an L-shaped connecting part, an upper sorting plate support part I, an upper sorting plate support part II, a lower sorting plate support part, a first stepper motor, a first stepper motor connecting part, a synchronous belt, a first driving wheel, a driven wheel, a sowing bin, an aluminum profile V, a first aluminum profile III, a first aluminum profile I, a support part I, and an upper sorting plate support part II;

[0019] The four aluminum profiles V are fixedly connected to the top of the aluminum profile III through an L-shaped connector, and are divided into an aluminum profile group I and an aluminum profile group II in the diagonal direction as the same group of aluminum profiles. The second stepper motor is fixedly connected to the aluminum profile group I through 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 the aluminum profile group II through bolts, the synchronous belt is meshed with the second driving wheel and the second driven wheel, the sowing bin is fixedly connected to the synchronous belts on both sides, the third steering gear is fixedly connected to the side of the aluminum profile III through a steering gear mounting member I, the steering gear disc is rigidly connected to the third steering gear, the steering gear head is fixedly connected to the steering gear disc, and the upper seed dividing plate and the lower minute plate both have equidistant circular holes, and the diameter of the circular holes is 7 mm.

[0020] Preferably, the platform lifting device includes a lifting push rod, a flange, a third stepping motor, a second synchronous belt, a third driving wheel, a third driven wheel, a large push rod, a large push rod connecting piece, a platform plate and a plurality of lifting push rod connecting pieces;

[0021] The multiple lifting push rod connecting parts are respectively fixedly connected to the left, right and rear directions of the aluminum profile construction frame, the lifting push rod is fixedly connected to the three lifting push rod connecting parts, 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 respectively hinged to the platform plate through holes, the second synchronous belt is meshed with the third driving wheel and the third driven wheel, the third driving wheel is rigidly connected to the third stepping motor, and the large push rod is fixed to the bottom of the platform plate through the large push rod connecting part and the holes arranged in the platform plate and the rolling belt.

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

[0023] The main board is fixedly connected to the main frame through a door leaf;

[0024] The mainboard tilting device includes a push rod, a lifting sheet metal, a bow-shaped unloading hook, a mainboard, and a push rod fixing piece. The push rod is fixedly connected to the push rod fixing piece. There are two push rod fixing pieces on the left and right sides, which are respectively fixedly connected to the sides of the main frame. The lower side of the lifting sheet metal is provided with a hole, which is fixedly connected to the mainboard through bolts and nuts. A large hole is opened on the side of the lifting sheet metal. The bow-shaped unloading hook passes through the large hole of the lifting sheet metal. The push rod and the lifting sheet metal are connected through the bow-shaped unloading hook.

[0025] The propulsion device includes a rolling screw and a screw connecting plate. The rolling screw is fixedly connected to the left and right sides of the main board through a rolling screw support. A T-shaped metal block is installed on the rolling screw. The 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 present invention has the following beneficial effects:

[0027] The single-disc separation device is used to separate multiple stacked seedling trays into one seedling tray at a time; the conveyor belt propulsion device is used to move the seedling tray from the single-disc separation device to the secondary soil covering and smoothing device, that is, from left to right. During the movement of the seedling tray, the primary soil covering and smoothing device is used to add and smooth the first substrate soil when sowing the seedling tray; the precision seed dropping and identification device is used to achieve the precision sowing of the seedling tray, and the camera above the precision seed dropping and identification device is used for visual recognition to monitor the number and position of pelletized seeds; the secondary soil covering and smoothing device is used to cover and smooth the soil after sowing. The unified movement of the conveyor belt propulsion device and the conveyor belt in the platform lifting device realizes the movement of the seedling tray to the platform lifting device; the platform lifting device realizes the descent of the seedling tray from the upper layer to the lower layer. The cooperation of the conveyor belt and the electric push rod in the platform lifting device realizes the movement of the seedling tray from the platform lifting device to the lower transport device. The bottom main board tilting device in the lower transport device is used to tilt the bottom main board; the propulsion device is used to move the seedling tray from the lower transport device to the ground, thereby completing the single-tray separation, soil covering and leveling, precise sowing and landing of the seedling tray at one time.

[0028] 1. The seed separation plates cooperate with each other to switch, so that the seedling trays can fall accurately and successively onto the conveyor belt to complete subsequent operations.

[0029] 2. The double roller flipping is used to achieve soil filling and pelletized seed burying during sowing, which is simple and efficient to operate.

[0030] 3. The double-layer seed separation plate cooperates with the sowing bin to drop seeds, achieving sowing accuracy and improving sowing efficiency and seedling success rate.

[0031] 4. Utilize the accuracy of the points on the seeding plate to simplify the hole digging process during traditional hole tray sowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the whole machine of the present invention;

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

[0034] Figure 3 This is a schematic diagram of the main frame 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 It is a schematic diagram of the structure of a single-disc separation device of the present invention;

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

[0038] Figure 7 It is a schematic diagram of the structure of the soil-dropping rotating disk in the soil-covering and leveling device of the present invention;

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

[0040] Fig. 9 It is a schematic diagram of the structure of the sowing bin in the sowing identification device of the present invention;

[0041] Fig.10 It is a structural schematic diagram of the platform lifting device of the present invention;

[0042] Fig.11 It is a schematic diagram of the structure of the lower layer transport device of the present invention.

[0043] In the figure: 100-main frame, 200-single tray separation device, 300-soil covering and smoothing device, 400-seeding identification device, 500-platform lifting device, 600-secondary soil covering and smoothing 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-disc drop long connecting rod, 203-flange bearing, 205-bearing connecting rod, 207-flat high bearing seat, 208-bearing connecting rod, 209-front Baffle, 211-flat low bearing seat, 212-length limit block slider, 215-left length limit base, 216-low load connecting rod, 217-servo mounting, 218-servo, 219-servo 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 seat, 306-reduction motor, 307-reduction motor support frame, 308-soil drop turntable, 309-linear guide, 310-slider, 311-coupling, 313-screw plate, 314-servo support, 315-transmission screw , 316—second servo, 317—servo disc, 401—first aluminum profile Ⅰ, 402—second stepper motor, 403—first synchronous belt, 404—plastic main servo disc, 405—servo mounting part Ⅰ, 407—second driven wheel, 409—seeding bin, 410—second driving wheel, 411—stepping motor connector, 412—upper sorting plate support Ⅰ, 414—lower sorting plate slider, 416—servo head, 418—third servo, 420—lower sorting plate, 421—L-shaped connector, 422—upper sorting plate support Ⅱ, 423—upper sorting 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 connecting piece, 508—large push rod, 509—third stepping motor, 510—second synchronous belt, 511—third driving wheel, 512—platform plate, 513—flange, 514—third driven wheel, 515—lifting push rod connecting piece, 701—main board, 703—push rod fixing piece, 704—push rod, 706—screw rod connecting piece, 707—bow-shaped unloading hook, 708—lifting sheet metal, 709—rolling screw, 710—rolling screw support, 711—T-shaped metal block, 712—connecting piece, 713—door leaf. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] The terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present invention are only for the convenience of description and are not used to limit the scope of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of the present invention without substantially changing the technical content.

[0046] Reference Figure 1-11 The seedling tray 150 of this embodiment is used to hold soil and pelletized seeds. The seedling tray 150 is provided with tray supports around it for being attached to a conveyor belt to drive the seedling tray 150 forward.

[0047] A plug-tray green onion precision seedling raising machine comprises a main frame 100, a single-tray separation device 200, a primary soil covering and smoothing device 300, a sowing identification device 400, a secondary soil covering and smoothing device 600 which are sequentially installed on an 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 various components and transport the seedling tray 150 from left to right to various parts of the upper transport device. The main frame 100 includes an upper transport device, a lower transport device 700 and a rightmost platform lifting device 500.

[0049] The single tray separation device 200 is located at the leftmost side 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 primary soil covering and smoothing device 300 is located between the single-disc separation device 200 and the sowing identification device 400, and completes the covering and smoothing 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 the precision sowing of pelletized seeds.

[0051] The secondary soil covering and smoothing device 600 is located between the sowing identification device 400 and the platform lifting device 500, and is used to cover and smooth the planted pelletized seeds with soil.

[0052] The platform lifting device 500 is located on the far right side of the whole machine, and is used to connect the upper transport device and the lower transport device 700, and transfer the seedling tray 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, multiple support blocks 105 and a conveyor belt 106 that is in contact with the upper part of the support block 105 are fixedly connected on both sides of the upper transport device of the main frame 100. The conveyor belt 106 is meshed with the first driving wheel 107 on the leftmost side of the whole machine and the first driven wheel 104 on the right side. The first driving wheel 107 is driven by the first stepper motor 108, and the first stepper motor 108 provides power for the transmission of the upper transport platform of the seedling tray 150.

[0054] When the whole machine starts working, turn on the power switch, put multiple seedling trays 150 into the single-disc separation device 200, and the single-disc separation device 200 separates the single seedling tray 150 and drops it onto the conveyor belt 106; the seedling tray 150 moves to the primary soil covering and smoothing device 300 driven by the conveyor belt 106, and the soil in the soil storage box 301 is put into the seedling tray 150 by the rotation of the soil drop turntable 308, and the soil in the seedling tray 150 is smoothed by the up and down movement of the smoothing plate 313 when the conveyor belt 106 continues to move; then after the seedling tray 150 reaches the sowing identification device 400, the pelletized seeds in the sowing bin 409 are dropped into the upper seed dividing plate 423 through the forward and backward movement of the sowing bin 409, and the pelletized seeds are accurately sown into the seedling tray 150 by the movement of the upper seed dividing plate 423; then the seedlings are grown The tray 150 is transported to the secondary soil covering and smoothing device 600, and the soil after sowing is covered and smoothed by the soil-dropping turntable and the smoothing plate in the secondary soil covering and smoothing device 600; then the seedling tray 150 is transported to the conveyor belt 510 in the platform lifting device 500, and the seedling tray 150 is transported from the upper transport platform to the lower transport platform by the lifting push rod 506, and then after the platform lifting device rises back to the initial height, the large push rod 508 below it moves to push the seedling tray 150 to the left side of the platform of the lower transport device 700, so as to facilitate the landing of the next seedling tray; after three seedling trays are filled on the lower transport device 700, the push rod 704 and the rolling screw 709 of the lower transport device 700 cooperate with each other to transport the seedling tray 150 to the ground, and the machine moves forward to start the next cycle. When the previous platform lifting device 500 starts to run, the single-disc separation device 200 starts to run again to improve the efficiency of the machine.

[0055] The main frame 100 includes a basic profile frame 103, a wheel bracket 102, a wheel 101 and a conveying device. The wheel 101 is rotatably connected to the wheel bracket 102. The conveying device includes a conveyor belt 106, a first driving wheel 107, a first driven wheel 104, a support block 105, a motor bracket 109 and a first stepper motor 108. The basic profile frame 103 is the structural frame of the whole machine, which is used to support various components; the wheel 101 is divided into a front driving wheel and a rear driven wheel, which provide power for the whole machine to move forward and is installed at the bottom of the basic profile frame 103; the motor 108 is installed on the side of the basic profile frame 103, connected to the first driving wheel 107, and through the cooperation with the conveyor belt 106 and the first driven wheel 104, the seedling tray can be transported to various devices of the upper transport platform; the support block 105 is evenly installed inside the conveyor belt 106, which is used to support the tray of the seedling tray.

[0056] The single-disk separation device 200 includes a single-disk separation, a limiting device and a first frame 222. The first frame 222 is installed on the upper layer of the 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 fixedly connected to the left and right sides of the first frame 222, width limiting blocks 220 and 223 and a front baffle 209, which are used to limit and unify the placement position of the seedling tray.

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

[0059] The plane high bearing seat 207 and the plane low bearing seat 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 plane high bearing seat 207 and the plane low bearing seat 211 in the center hole by means of the flange bearing 203; the long connecting rod 202 of the landing 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 through the flange bearing 203.

[0060] Specifically, in the initial state of the whole machine, the seedling tray 150 is placed on the high-load connecting rods 208 on the left and right sides through the side supports to realize the initial limit of the seedling tray 150; the upper first steering gear 218 transmits the steering gear driving short rod 219 through the plastic main steering gear plate 404, drives the movement of the long connecting rod 202 of the plate, thereby driving the high-load connecting rod 208 to perform a "closing" movement, so that the seedling tray 150 is dropped onto the low-load connecting rod 216 as a whole, and the upper first steering gear 218 is moved. The first servo engine 218 is operated in reverse to realize the "expanding" movement. At this time, the high-load connecting rod 208 is between the seedling tray of the lowest layer and the second-to-last layer, realizing the separation effect; the first lower servo engine 218 works to drive the low-load connecting rod 216 to perform the "closing" movement, so that the seedling tray 150 is dropped onto the conveyor belt 106 of the main frame 100; the first lower servo engine 218 is operated in reverse, and the low-load connecting rod 216 performs the "expanding" movement, completing a process and realizing the single-disc separation of the seedling tray 150.

[0061] The soil covering and smoothing 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 frame 302, a soil drop turntable 308, a second steering gear 316, a trowel plate 313, a linear guide rail 309 and a reduction motor 306. 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, and is connected by bolts and nuts. There is a space in the middle of the reduction motor support frame 307, and the vertical support seat 305 is fixedly connected to the second frame 302 through this space. The center of both sides of the soil drop turntable 308 is fixedly connected to the flange seat 304, and the flange seat 304 is fixedly connected to the vertical support seat 305 through an optical axis. After the fixed connection, the length of the optical axis exceeds the vertical support seat 305. The flange seat 304, the optical axis, the motor shaft of the reduction motor 306 and the vertical support seat 305 are concentric, and the excess part of the optical axis is concentric with the reduction motor 30 6 is connected through a coupling 311, and a second servo motor 316 is fixedly connected to the second frame 302 through a servo motor support 314 and fixed by bolts and nuts. A servo motor disc 317 is fixedly connected to the second servo motor 316, and the servo motor disc 317 is connected to the central gap of the trowel plate 313 through a transmission screw 315. The transmission screw 315 is a rotational motion on the servo motor and a horizontal motion on the trowel 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, and the slider 310 cooperates with the guide rail 309. The trowel plate 313 is connected to the slider 310 through the holes on the left and right sides.

[0062] Specifically, the soil covering and smoothing device 300 is located between the single-disc separation device 200 and the sowing identification device 400, and is the next operation step of the single-disc separation device 200. It provides soil for the seedling tray 150 and smoothes it to provide a matrix for the next step of sowing. The soil storage box 301 is closed on four sides and hollowed out in the middle, which is convenient for adding and storing soil; the soil drop turntable 308 is closed on both sides and is circular, with a hole at the center of the circle connecting the flange seat 304, and the space is separated by five folding partitions between the two closed plates, so that the amount of soil dropped by the soil drop turntable 308 is the same each time it rotates a fixed angle. The soil drop turntable 308 fits the lower side of the soil storage box 301, effectively storing soil while preventing unnecessary soil from falling, and achieving precise soil drop; when the screed plate arrives and leaves the seedling tray 150 below, the circular motion of the servo plate 317 drives the servo support 314 to perform a circular motion. At this time, the transmission screw 315 also performs a circular motion relative to the second servo 316, and can be decomposed into up and down motion and left and right motion relative to the screed plate 313, that is, the up and down motion of the screed plate 313 is realized by the movement of the transmission screw 315, so that the screed plate 313 can enter and maintain the soil screeding and leaving at an appropriate height when the seedling tray 150 arrives and leaves.

[0063] The sowing identification device 400 includes a third servo 418, a servo mounting part Ⅰ405, a servo disc 404, a servo head 416, an upper sorting plate 423, a lower sorting plate 420, an L-shaped connecting part 421, an upper sorting plate support part Ⅰ412, an upper sorting plate support part Ⅱ422, a lower sorting plate slider 414, a second stepper motor 402, a stepper motor connecting part 411, a first synchronous belt 403, a second driving wheel 410, a second driven wheel 407, and a sowing bin 409.

[0064] Specifically, four aluminum profiles V426 are fixedly connected to the top of aluminum profile III424 through L-shaped connectors 421, and are divided into aluminum profile group I and aluminum profile group II in the diagonal direction. The second stepper motor 402 is fixedly connected to aluminum profile group I through a stepper motor connector 411, the second driving 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 through bolts, the first synchronous belt 403 is meshed with the second driving wheel 410 and the second driven wheel 407, the sowing bin 409 is fixedly connected to the first synchronous belts 403 on both sides, and the second stepper motor 402 can drive the sowing bin 409 to move back and forth.

[0065] The third servo 418 is fixedly connected to the side of the aluminum profile III 424 through the servo mounting part I 405, the servo disc 404 is rigidly connected to the third servo 418, the servo head 416 is fixedly connected to the servo disc 404, the servo and its connecting parts are respectively fixedly connected to the aluminum profile III 424 and the first aluminum profile I 401 on both sides, the lower sorting plate 420 is fixed in position by the lower sorting plate slider 414 fixedly connected to the aluminum profile III 424 and the first aluminum profile I 401 on the left and right sides, and the upper sorting plate 423 is fixed in position by the upper sorting plate support part I 412 and the upper sorting plate support part II 422 fixedly connected to the aluminum profile III 424 and the first aluminum profile I 401 The upper seed dividing plate 423 and the lower seed dividing plate 414 are both provided with equidistant circular holes, and the diameter of the circular holes is 7 mm, which is approximately the diameter of the pelletized seeds. During the movement of the lower seed dividing plate 420, there will be two states: overlapping and non-overlapping of the circular holes in the upper seed dividing plate 423 and the lower seed dividing plate 420. In the "overlapping" state, the pelletized seeds can fall from the upper seed dividing plate 423 into the lower seed dividing plate 420 and enter the seedling raising tray below. In the "non-overlapping" state, the pelletized seeds are blocked by the non-porous part of the lower seed dividing plate 420 and cannot enter the seedling raising tray below. The initial state is the "non-overlapping" state. There is a camera above the device to obtain the number of seeds on the upper sorting plate 423. When the seedling tray 150 reaches the appropriate position for seeding, the second stepper motor 402 drives the sowing chamber 409 to reciprocate, and the pelletized seeds fall into the holes of the upper sorting plate 423. When the number of filled seeds obtained by the camera reaches a specified threshold, the third servo 418 drives the lower sorting plate 420. When the upper sorting plate 423 and the lower sorting plate 420 reach a "coincidence" state, the seeds fall into the soil inside the seedling tray 150 to achieve 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 connecting piece 507, a platform plate 512 and a second aluminum profile I 501, a second aluminum profile II 502, a second aluminum profile III 503, and a second aluminum profile IV for connection.

[0067] Specifically, the three lifting push rod connecting pieces 515 are respectively fixedly connected to the left, right and rear directions of the aluminum profile construction frame, the lifting push rod 506 is fixedly connected to the three lifting push rod connecting pieces 515, the flange 513 is fixedly connected to the platform plate 512, and the head of the lifting push rod 506 is fixedly connected to the flange 513. Under the action of the three lifting push rods 506, the lifting and lowering of the platform plate 512 can be realized. Above the platform plate 512, the third driving wheel 511 and the third driven wheel 514 are respectively hinged to the platform plate 512 through holes, the second synchronous belt 510 is meshed with the third driving wheel 511 and the third driven wheel 514, the third driving wheel 511 is rigidly connected to the third stepping motor 509, and the third The stepper motor 509 is fixed on the platform plate 512 through the motor bracket, and the large push rod 508 is fixed to the bottom of the platform plate 512 through the large push rod connecting piece 507 and the holes arranged in the platform plate 512. The third stepper motor 509 is driven in the forward direction to bring the seedling tray 150 into the lifting platform 500, the three lifting push rods 506 are extended, and the platform plate 512 enters the lower layer. The third stepper motor 509 is driven in the reverse direction to push the seedling tray 150 into the lower layer transportation device 700, the three lifting push rods 506 are shortened, and the large push rod 508 located under the platform plate 512 is extended to push the seedling tray 150 to the specified position. Finally, the large push rod 508 is shortened to complete the lifting of the 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 main board 701 is fixedly connected to the main frame 100 through the door leaf 713 .

[0070] The mainboard tilting device includes a push rod 704, a lifting sheet metal 708, a bow-shaped unloading hook 707, a push rod fixing part 703, and a mainboard 701. The push rod 704 is fixedly connected to the push rod fixing part 703. The push rod fixing parts 703 are two on the left and right sides, which are respectively fixedly connected to the sides of the main frame 100 and are connected and fixed by bolts and nuts. The lower side of the lifting sheet metal 708 is provided with a hole, which is fixedly connected to the mainboard 701 by bolts and nuts. The side of the lifting sheet metal 708 is provided with a large hole, and the bow-shaped unloading hook 707 is provided with a hole. 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 a bow-shaped unloading hook 707. The propulsion device includes a rolling screw 709 and a screw connecting plate 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 plate 706 is connected to the T-shaped metal blocks 711 on both sides through a connecting plate 712, and is fixedly connected using bolts and nuts.

[0071] Specifically, the lower transport device 700 is located on the left side of the second layer of the whole machine. It is used to connect the seedling tray 150. After various sowing operations are carried out, the platform lifting device 500 is lowered to the second layer platform and placed on the ground. The connecting device and the propulsion device for placing the seedling tray 150 on the ground, the length of the screw connecting piece 706 is set to be the same as the distance between the two rolling screws 709. At this time, the installation angle of the connecting piece 712 and the screw connecting piece 706 is 90°, and the connecting piece 712 is in a vertical state, which can ensure that the height of the 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, preventing the increase of friction during propulsion. The lower transport device 700 starts to operate after storing three seedling trays 150 that have completed the sowing operation on the second-level transport platform. The push rod 704 performs the pullback work, and the main board 701 starts to tilt. After the push rod 704 rises to the highest point, the rolling screw 709 starts to operate, and the connecting piece 712 is used for transmission, so that the screw connecting piece 706 pushes the seedling tray 150 to the ground, and then the rolling screw 709 and the push rod 704 operate in reverse at the same time to return the main board 701 and the screw connecting piece 706 to their positions.

[0072] The lower transport device 700 has completed its work, and the entire machine has completed one process. It moves forward a distance equal to the length of the seedling tray 150 and starts the second process cycle.

[0073] The hole tray type green onion precision seedling raising machine of this embodiment can automatically complete the separation, soil covering, soil leveling, precision sowing and pushing the tray to the ground of the seedling tray at one time, greatly reducing manpower and material resources and improving work efficiency. The single tray separation device is used to realize the separation of multiple stacked seedling trays into one seedling tray one by one; the conveyor belt propulsion device is used to realize the movement of the seedling tray from the single tray separation device to the secondary soil covering and leveling device, that is, from left to right. In the process of the movement of the seedling tray, the first addition and leveling of the matrix soil when sowing the seedling tray is realized by the primary soil covering and leveling device; the precision sowing of the seedling tray is realized by the precision seed dropping and identification device, and the camera above the precision seed dropping and identification device is used for visual recognition to realize the monitoring of the number and position of the pelletized seeds; the secondary soil covering and leveling device is used to realize the covering and leveling of the soil after sowing. The movement of the seedling tray to the platform lifting device is realized by the unified movement of the conveyor belt propulsion device and the conveyor belt in the platform lifting device; the seedling tray is lowered from the upper layer to the lower layer by the platform lifting device. The cooperation of the conveyor belt and the electric push rod in the platform lifting device enables the seedling tray to move from the platform lifting device to the lower transport device. The bottom main board tilting device in the lower transport device is used to tilt the bottom main board; the seedling tray is moved from the lower transport device to the ground through the propulsion device, so as to complete the work of single tray separation, soil covering and leveling, precise sowing and landing of the seedling tray at one time.

[0074] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0075] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plug tray type green onion precision seedling raising machine, comprising a main frame (100) arranged in a frame structure, wherein the main frame (100) comprises a basic profile frame (103), It is 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), and the main frame (100) is also provided with a conveying device; The upper layer of the main frame (100) is sequentially installed with a single-disc separation device (200), a primary soil covering and smoothing device (300), a sowing identification device (400), and a secondary soil covering and smoothing device (600), and a plurality of seedling trays (150) are placed in the single-disc separation device (200); Wherein, the single-disk separation device (200) is located on one side of the upper transport device; The primary soil covering and leveling device (300) is located between the single-disk separation device (200) and the sowing identification device (400); The secondary soil covering and leveling device (600) is located between the sowing identification device (400) and the platform lifting device (500); The platform lifting device (500) is located on a side away from the single-disk separation device (200).

2. A plug tray type green onion precision seedling raising machine according to claim 1, Features The conveying device comprises 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), and a first driving wheel (107) and a first driven wheel (104) are respectively installed at both ends of the conveyor belt (106), and a first stepping motor (108) is installed on the first driving wheel (107).

3. A plug tray type green onion precision seedling raising machine according to claim 1, It is characterized in that The single-disk separation device (200) comprises a single-disk separation and limiting device and a first frame (222); The single disc separation comprises a plurality of first steering gears (218), a bearing connecting rod (208), a long disc drop connecting rod (202), a steering gear driving short rod (219), a plane high bearing seat (207) and a plane low bearing seat (211); four sides of the first frame (222) are all installed with steering gear mounting parts (217); each of the first steering gears (218) is fixedly connected to the inside of the steering gear mounting part (217); the steering gear driving short rod (219) is connected to the first steering gear (218) through a plastic main steering disc (210) fixedly connected to the steering gear support. 18), the plane high bearing seat (207) and the plane low bearing seat (211) are alternately installed on the first frame (222), the load-bearing connecting rod (208) is fixedly connected to the plane high bearing seat (207) and the plane low bearing seat (211) through the flange bearing (203) in the center hole, one end of the landing plate long connecting rod (202) is connected to the steering gear driving short rod (219) through the flange bearing (203), and the other end is fixedly connected to two low load-bearing connecting rods (216) or two high load-bearing connecting rods (208).

4. A plug tray type green onion precision seedling raising machine according to claim 3, It is characterized in that The limiting device comprises a left length limiting base (215) and a right length limiting base (221) fixedly connected to the left and right sides of the first frame (222), width limiting blocks (220) and (223) and a front baffle (209).

5. The plug tray type green onion precision seedling raising machine according to claim 1, It is characterized in that The soil covering and smoothing device (300) comprises a second frame (302) fixedly connected to the basic profile frame (103), a soil storage box (301) fixedly connected between the second frame (302), a soil dropping turntable (308), a second steering gear (316), a smoothing plate (313), a linear guide rail (309), a reduction motor (306), a vertical support seat (305), and a slider (310), wherein 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 seat (305) is fixedly connected to the second frame (302), the two sides of the soil dropping turntable (308) are fixedly connected to flange seats (304), and the flange seat (304) is connected to the vertical support seat (310). The second frame (302) is fixedly connected to the second frame (305) through an optical axis, and after the fixed connection, the length of the optical axis exceeds the vertical support seat (305), the exceeding part of the optical axis is connected to the motor shaft of the reduction motor (306) through a coupling (311), the second steering gear (316) is fixedly connected to the second frame (302) through a steering gear support (314), a steering gear disc (317) is fixedly connected to the second steering gear (316), and the steering gear disc (317) is connected to the central gap of the trowel 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), and the trowel plate (313) is connected to the slider (310) through holes on the left and right sides.

6. A plug tray type green onion precision seedling raising machine according to claim 5, It is characterized in that The flange seat (304), the optical axis, the motor shaft of the reduction motor (306) and the vertical support seat (305) are cocentric.

7. The plug tray type green onion precision seedling raising machine according to claim 1, It is characterized in that The sowing identification device (400) comprises a steering gear (418), a steering gear mounting part I (405), a steering wheel (404), a steering gear head (416), an upper sorting plate (423), a lower sorting plate (420), an L-shaped connecting part (421), an upper sorting plate support part I (412), an upper sorting plate support part II (422), a lower sorting plate support part (414), a first stepper motor (402), a first stepper motor connecting part (411), a synchronous belt (403), a first driving wheel (410), a driven wheel (407), a sowing bin (409), an aluminum profile V, a first aluminum profile III (424), and a first aluminum profile I (401); The four aluminum profiles V (426) are fixedly connected to the top of the aluminum profile III (424) via an L-shaped connector (421), and are divided into an aluminum profile group I and an aluminum profile group II in the diagonal direction. The second stepper motor (402) is fixedly connected to the aluminum profile group I via a stepper motor connector (411), the second driving wheel (410) is connected to the second stepper motor (402), the second driven wheel (407) is hinged to the inner side of the aluminum profile group II via bolts, and the synchronous belt (403) is connected to the second stepper motor (402). The driving wheel (410) is meshed with the second driven wheel (407), the sowing bin (409) is fixedly connected to the synchronous belts (403) on both sides, the third steering gear (418) is fixedly connected to the side of the aluminum profile III (424) through the steering gear mounting member I (405), the steering gear disc (404) is rigidly connected to the third steering gear (418), the steering gear head (416) is fixedly connected to the steering gear disc (404), and the upper seed dividing plate (423) and the lower seed dividing plate (414) are both provided with equidistant circular holes, and the diameter of the circular holes is 7 mm.

8. The plug tray type green onion precision seedling raising machine according to claim 1, It is characterized in that The platform lifting device (500) comprises a lifting push rod (506), a flange (513), a third stepping motor (509), a second synchronous belt (510), a third driving wheel (511), a third driven wheel (514), a large push rod (508), a large push rod connecting piece (507), a platform plate (512) and a plurality of lifting push rod connecting pieces (515); The plurality of lifting push rod connecting members (515) are respectively fixedly connected to three directions of the aluminum profile construction frame, the lifting push rod (506) is fixedly connected to the three lifting push rod connecting members (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 respectively hinged to the platform plate (512) through holes, the second synchronous belt (510) is meshed with the third driving wheel (511) and the third driven wheel (514), the third driving wheel (511) is rigidly connected to the third stepping motor (509), and the large push rod (508) is fixed to the bottom of the platform plate (512) through the large push rod connecting member (507) and the holes arranged in the platform plate (512) by means of a rolling belt.

9. The plug tray type green onion precision seedling raising machine according to claim 1, It is characterized in that The lower transport device (700) comprises 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 a door leaf (713); The mainboard tilting device comprises a push rod (704), a lifting sheet metal (708), a bow-shaped unloading hook (707), a mainboard (701), and a push rod fixing member (703); the push rod (704) is fixedly connected to the push rod fixing member (703); the push rod fixing members (703) are two on the left and right sides, respectively fixedly connected to the sides of the main frame (100); a hole is provided on the lower side of the lifting sheet metal (708), and is fixedly connected to the mainboard (701) by bolts and nuts; a large hole is provided on the side of the lifting sheet metal (708); the bow-shaped unloading hook (707) passes through the large hole of the lifting sheet metal (708); and the push rod (701) and the lifting sheet metal (708) are connected by the bow-shaped unloading hook (707); The propulsion device comprises a rolling screw (709) and a screw connecting plate (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); and the screw connecting plate (706) is connected to the T-shaped metal blocks (711) on both sides through a connecting plate (712).

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