A seedling planter

Abstract

This invention provides a seedling planter, belonging to the field of agricultural technology. It solves the problem of high manpower, material, and financial costs and low planting efficiency in vegetable cultivation in my country. The seedling planter includes a frame, a tray feeding device, a seedling grabbing device, a rotary seeding device, and a transmission device. The tray feeding device includes a tray placed at the top, which intermittently transports seedlings placed in the tray forward. The seedling grabbing device is located above the tray feeding device and can grab seedlings from the tray at the end of the seedling transport. The rotary seeding device can catch seedlings that slide off the seedling grabbing device and plant them in the soil. The transmission device provides power to the entire device. It has the advantages of improving planting efficiency, reducing labor intensity, reducing labor costs, saving a large number of seedlings, facilitating crop management and harvesting, and increasing yield.

Description

Technical Field

[0001] This invention relates to the field of agricultural technology, specifically to a seedling planter. Background Technology

[0002] With the development of factory-style seedling technology, the research and application of precision sowing, germination, seedling greenhouses, transportation, and other facilities and equipment have progressed rapidly. Domestic and international machinery and equipment for open-field operations, such as soil tillage machinery and plant protection machinery, are mature and can be shared with other cash crop production, basically meeting production needs. The main areas of focus for leafy vegetable production machinery and equipment are plug seedling planting and leafy vegetable harvesting. While factory-style seedling technology and equipment are relatively mature in most leafy vegetable producing areas in my country, seedling transplanting is still mainly done manually, resulting in high labor intensity and low production efficiency. Harvesting machinery and products for large leafy vegetables such as cabbage in Europe and America are mature and meet the actual needs of my country's production. There is an urgent need for harvesting machinery and equipment for leafy vegetables such as bok choy and Chinese cabbage, which are mainly produced in China.

[0003] Currently, vegetable cultivation in my country is mainly based on manual or semi-mechanized sowing. This method consumes a large amount of manpower, material resources, and financial resources, and has low sowing efficiency. The overall mechanization level of vegetables is only about 20%, far lower than that of grain crops. Most seedling planting machines currently available have low sowing efficiency, high labor intensity, high labor costs, high plant damage rate, and are inconvenient for crop management and harvesting. Summary of the Invention

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a seedling planter that offers advantages such as improved planting efficiency, reduced labor intensity, lower labor costs, significant seedling savings, easier crop management and harvesting, and ultimately increased yield. It solves the problem that vegetable cultivation in my country is primarily based on manual or semi-mechanized planting, which consumes substantial manpower, resources, and capital while exhibiting low efficiency. The overall mechanization level for vegetables is only about 20%, far lower than that of grain crops. Currently, most seedling planters suffer from low planting efficiency, high labor intensity, high labor costs, high plant damage rates, and difficulties in crop management and harvesting.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned goals of improving sowing efficiency, reducing sowing labor intensity, reducing labor costs, saving a large amount of seedlings, facilitating crop management and harvesting, and ultimately increasing yield, this invention provides the following technical solution: a seedling planter, comprising a frame, a tray feeding device, a seedling grabbing device, a rotary seeding device, and a transmission device. The tray feeding device, seedling grabbing device, rotary seeding device, and transmission device are respectively arranged in the frame. The tray feeding device includes a tray placed at the top, which can intermittently transport seedlings placed in the tray forward. The seedling grabbing device is arranged above the tray feeding device and can grab seedlings from the tray at the end of the seedling transport by the tray feeding device. The rotary seeding device can catch seedlings that slide off from the seedling grabbing device and plant them in the soil. The transmission device provides power to the tray feeding device, seedling grabbing device, and rotary seeding device.

[0008] Preferably, the feeder includes a feeder, a drag bar is provided in the bottom center seam of the feeder, one end of the drag bar is fixed to the frame, the bottom of the feeder is provided with a seedling tray claw that fits into the bottom seam of the feeder, a feeding plate is fixedly provided at the bottom of the seedling tray claw, and a lower plate perpendicular to the feeding plate is provided at the bottom of the feeding plate.

[0009] Preferably, the frame is provided with a second tray frame, the second tray frame is provided with a first cam, the first cam is provided with a crank connecting rod, the other end of the crank connecting rod is connected to a second slider, the second tray frame is fixedly provided with a first guide rail, the first guide rail is slidably provided with a second slider, the second slider is provided with a second guide rail, the lower plate is slidably provided with the second guide rail, and the second tray frame is also provided with a bridge plate that can rotate around the center, one end of the bridge plate abutting against the bottom of the first cam, and the other end abutting against the bottom of the lower plate.

[0010] Preferably, the seedling grasping device includes a limiting plate, which consists of two plates vertically arranged on the left and right sides of the frame. Vertical slide rails are provided on both sides of the limiting plate, and first sliders are respectively provided on the vertical slide rails. Horizontal slide rails are provided on the two first sliders. A fourth guide groove is also provided on the limiting plate. A support connecting rod perpendicular to the limiting plate is slidably arranged in the guide groove. The support connecting rod is also slidably arranged on the horizontal slide rail. A second connecting rod is rotatably arranged on the support connecting rod located between the horizontal slide rail and the limiting plate. The other end of the second connecting rod is rotatably arranged on a bearing seat fixed to the frame. A clearance groove is provided on the second connecting rod. A first connecting rod is rotatably arranged in the middle of the second connecting rod, and a second cam is rotatably arranged at the other end of the first connecting rod.

[0011] Preferably, a support housing is provided between the two support connecting rods. The support housing has two mounting parts and a first driving device inside. The support housing has two sets of first guide grooves for the mounting parts to slide. The first driving device is used to drive the mounting parts to move along the length direction of the first guide grooves. The distance between the two sets of first guide grooves gradually decreases from top to bottom. The bottom of the mounting part has an insertion part. The insertion part is fixedly connected to the mounting part by a threaded part. At least two first rollers are provided at both ends of the mounting part. The first rollers are used to roll along the length direction of the first guide grooves.

[0012] Preferably, the first driving device includes an electromagnetic telescopic rod and a mounting plate. The electromagnetic telescopic rod is disposed on the support housing and is used to drive the mounting plate to move. The mounting plate is connected to two mounting parts and is provided with two second guide grooves. The end of the mounting part away from the insertion part is provided with a slot. A second roller is rotatably connected to each of the two side walls of the slot. The second rollers can roll along the length direction of the second guide groove. The support housing is provided with a fixing plate for fixing the electromagnetic telescopic rod. The fixing plate is integrally formed with the support housing.

[0013] Preferably, the bottom of the two supporting housings is provided with a placement groove, the placement groove is fixedly connected to the frame by a third connecting rod, the bottom of the placement groove is provided with a rotating opening and closing plate, and a trigger rod is provided on the opening and closing plate.

[0014] Preferably, the rotary seeding device includes a feeding shaft, which is rotatably fixed to the frame via a bearing seat two. One end of the feeding shaft is provided with a pulley one, and the other end is provided with a fixing plate two. At least three circularly arranged third rollers are provided on the inner side of the fixing plate two. A triangular plate is fastened to the third roller, and a circular hole is provided in the middle of the triangular plate. The circular hole is fastened to the three third rollers. A Ferris wheel is provided on the feeding shaft, and three attached arms are provided on the Ferris wheel, which are arranged at 120° intervals between each other. Seedling cups are installed between the attached arms. A trigger rod two is provided between the two middle attached arms, and a trigger is provided at the top of the trigger rod two. A feeding connecting rod is fixedly connected to the attached arm near the triangular plate, and the other end of the feeding connecting rod is rotatably set at the three corners of the triangular plate.

[0015] Preferably, the seedling cup is symmetrically provided with a fixed shaft, which is rotatably connected to the end of the attachment arm. The seedling cup is also rotatably provided with pointed nozzles on both sides, and a support rod is rotatably provided on the pointed nozzle. One end of the support rod is rotatably provided on the pointed nozzle, and the other end is rotatably connected to another support rod. A retaining connecting rod is provided on one side of the pointed nozzle, and the other end of the retaining connecting rod is provided on the pointed nozzle on the other side. The bottom of the frame is also provided with a lifting guide rail that cooperates with the support rod, and the lifting guide rail is provided with a lifting arc surface.

[0016] Preferably, the transmission device includes a motor, a gear one is mounted on the motor shaft of the motor, a gear two and a gear three are sequentially connected to the gear one, a transmission rod two is mounted on the gear two, a pulley three is mounted at one end of the transmission rod two, a transmission belt one is mounted on the pulley three, the other end of the transmission belt one is mounted on the pulley one, a transmission rod three is mounted on the gear three, a transmission belt two is mounted on the transmission rod three, the other end of the transmission belt two is mounted on the pulley two, a transmission rod one is mounted on the pulley two, both ends of the transmission rod one are fixedly connected to a cam two, and one end of the transmission rod three is fixedly connected to the cam one.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a seedling planter with the following beneficial effects:

[0019] This seedling planter utilizes a frame, a tray feeding device, a seedling gripping device, a rotary seeding device, and a transmission device working together. First, the tray containing seedlings is placed on the drag bar. At this point, the seedling tray claw at the bottom fits into the gap at the bottom of the tray. The motor starts running, driving cam one to rotate. The crank connecting rod connected to cam one drives the second slider to slide left and right on guide rail one. Due to the special shape of the cam one, one end of the bridge plate abutting its bottom moves up and down along the contour of cam one. The bridge plate abutting the other end of the lower plate pushes the seedling tray claw up and down, thus realizing the seedling tray claw cyclically pushing the tray forward from the bottom of the tray, completing the seedling delivery.

[0020] When the seedlings are conveyed to the bottom of the seedling gripping device, the motor rotates, causing the second cam to rotate, which in turn drives the first connecting rod to pull the second connecting rod to rotate. At this time, the support connecting rod, which is assembled in the second connecting rod, moves downward along the fourth guide groove, causing the insertion part to gradually insert into the material tray, thus gripping the seedlings. When the support connecting rod moves to the bottom of the fourth guide groove, the electromagnetic telescopic rod moves downward. Due to the action of the first guide groove and the mounting plate, the two insertion parts gradually move downward from above, gradually approaching each other during the downward movement. When the insertion parts move to the bottom, the gripping of the seedlings is completed. At this time, with the operation of the motor, the second cam pushes the first connecting rod forward, thereby driving the second connecting rod to reset, and further driving the support connecting rod to reset. As the support connecting rod resets, the insertion part, carrying the seedlings inside, moves to the top of the placement slot. At this time, the electromagnetic telescopic rod moves upward, the distance between the insertion parts increases, and the seedlings between the insertion parts fall into the placement slot.

[0021] As the motor operates, the rotary seeding device also rotates. When the seedling falls into the placement trough, the trigger on trigger rod two contacts trigger rod one. As the trigger rotates further, it pushes trigger rod one, causing the opening and closing plate to rotate, and the seedling in the placement trough falls precisely into the seedling receiving cup. As the feeding shaft rotates further, when the nozzles contact the ground, since both nozzles are in a closed state at this time, and the fixed plate two, the triangular plate, and the feeding connecting rod ensure that the nozzles are always perpendicular to the ground, the nozzles can dig in the soil to form planting pits as they continue to rotate. When the support rod on the nozzles contacts the lowest point of the lifting arc surface, the planting pit is completed. As the nozzles continue to rotate, the support rod connection is squeezed by the lifting arc surface, causing the support rod to open the two nozzles. After the nozzles are opened, the seedlings inside can fall accurately into the planting pit. When the support rod connection leaves the highest point of the lifting arc surface, the tension spring between the nozzles closes the nozzles again, and then the next round of planting begins. This achieves the effects of improving sowing efficiency, reducing sowing labor intensity, reducing labor costs, saving a large amount of seedlings, facilitating crop management and harvesting, and ultimately increasing yield. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a seedling sower according to the present invention;

[0023] Figure 2 This is a side view of the structure of a seedling planter according to the present invention;

[0024] Figure 3 This is a schematic diagram of the material tray feeding device for a seedling planter according to the present invention;

[0025] Figure 4This is a side view of the structure of a seed tray feeding device for a seedling planter according to the present invention;

[0026] Figure 5 This is a side view of the structure of a seedling grabbing device for a seedling planter according to the present invention;

[0027] Figure 6 This is a schematic diagram of the seedling grasping device of a seedling sower according to the present invention;

[0028] Figure 7 This is a schematic diagram of the support shell and internal structure of a seedling planter according to the present invention;

[0029] Figure 8 This is a cross-sectional view of a seedling planter support housing according to the present invention;

[0030] Figure 9 This is a schematic diagram of the structure of a seedling planter mounting plate, mounting part, and insertion part according to the present invention;

[0031] Figure 10 This is a schematic diagram of the seedling sowing machine placement trough structure according to the present invention;

[0032] Figure 11 This is a schematic diagram of the structure of a seedling planter rotary seeding device according to the present invention;

[0033] Figure 12 This is a schematic diagram of the internal frame structure of the rotary seeding mechanism of a seedling seeder according to the present invention;

[0034] Figure 13 This is a schematic diagram of the seedling receiving cup and nozzle structure of a seedling planter according to the present invention;

[0035] Figure 14 This is a schematic diagram of the transmission device of a seedling sower according to the present invention.

[0036] In the picture:

[0037] 100 frames;

[0038] 200 Material tray feeding device, 201 Material tray, 202 Trailing rod, 203 Feeding plate, 204 Seedling tray claw, 205 Cam 1, 206 Bridge plate, 207 Crank connecting rod, 208 Second slider, 209 Guide rail 1, 210 Guide rail 2, 211 Pallet frame 2, 212 Lower plate;

[0039] 300 Seedling grabbing device, 301 Cam II, 302 First connecting rod, 303 Second connecting rod, 304 Limiting plate, 305 Vertical slide rail, 306 First slider, 307 Horizontal slide rail, 308 Fourth guide groove, 309 Support connecting rod, 310 Support housing, 311 Insertion part, 312 First driving device, 313 Fixing plate I, 314 First roller, 315 Second roller, 316 Mounting part, 317 Second guide groove, 318 First guide groove, 319 Mounting plate, 320 Electromagnetic telescopic rod, 321 Slot, 322 Placement groove, 323 Trigger rod I, 324 Opening and closing piece, 325 Bearing seat I, 326 Third connecting rod, 327 Relief groove;

[0040] 400 Rotary seeding device, 401 Seedling cup, 402 Holding rod, 403 Support rod, 404 Nozzle, 405 Third roller, 406 Trigger, 407 Round hole, 408 Lifting guide rail, 409 Lifting arc surface, 410 Fixed shaft, 411 Triangular plate, 412 Fixed plate II, 413 Feeding connecting rod, 414 Attached arm, 415 Feeding rotating shaft, 416 Ferris wheel, 417 Pulley I, 418 Bearing seat II, 419 Trigger rod II;

[0041] 500 Transmission device, 501 Transmission belt one, 502 Motor, 503 Gear one, 504 Gear two, 505 Gear three, 506 Pulley two, 507 Pulley three, 508 Transmission rod one, 509 Transmission rod two, 510 Transmission belt two, 511 Transmission rod three. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figure 1-14A seedling planter includes a frame 100, a tray feeding device 200, a seedling gripping device 300, a rotary seeding device 400, and a transmission device 500. The tray feeding device 200, seedling gripping device 300, rotary seeding device 400, and transmission device 500 are respectively arranged in the frame 100. The tray feeding device 200 includes a tray 201 placed at the top, which can feed seedlings placed in the tray 201. The seedlings are transported intermittently forward. The seedling grabbing device 300 is positioned above the tray feeding device 200. The seedling grabbing device 300 can grab the seedlings in the tray 201 at the end of the seedlings being transported by the tray feeding device 200. The rotary seeding device 400 can catch the seedlings that slip from the seedling grabbing device 300 and plant them in the soil. The transmission device 500 provides power to the tray feeding device 200, the seedling grabbing device 300, and the rotary seeding device 400.

[0044] The feeding device 200 includes a feeding tray 201. A drag bar 202 is installed in the center seam at the bottom of the feeding tray 201. One end of the drag bar 202 is fixed to the frame 100. A seedling tray claw 204, fitting into the gap at the bottom of the feeding tray 201, is installed at the bottom of the seedling tray claw 204. A feeding plate 203 is fixedly installed at the bottom of the feeding plate 203, and a lower plate 212 perpendicular to the feeding plate 203 is installed at the bottom of the feeding plate 203. The compartments in the feeding tray 201 are used to place seedlings to be sown. The drag bar 202 is used to position and limit the position of the feeding tray 201, thus better enabling the seedling gripping device 300 to position and grip the seedlings, reducing damage to the seedlings due to inaccurate positioning during the gripping process. The seedling tray claw 204 can extend into the gap at the bottom of the feeding tray 201. With the cooperation of other components, the seedling tray claw 204 can advance the feeding tray 201 compartment by compartment, realizing the transport of seedlings. The lower plate 212 is used to support the top feeding plate 203. Furthermore, since the bottom of the lower plate 212 is against the bridge plate 206, the bridge plate 206 can lift the lower plate 212 to make the seedling tray claw 204 move up and down, thus forming a movement of the feed tray 201 moving forward.

[0045] A second pallet frame 211 is mounted on the frame 100. A first cam 205 is mounted on the second pallet frame 211, and a crank connecting rod 207 is mounted on the first cam 205. The other end of the crank connecting rod 207 is connected to a second slider 208. A first guide rail 209 is fixedly mounted on the second pallet frame 211, and a second slider 208 is slidably mounted on the first guide rail 209. A second guide rail 210 is mounted on the second slider 208. A lower plate 212 is slidably mounted on the second guide rail 210. A bridge plate 206, rotatable around the center, is also mounted on the second pallet frame 211. One end of the bridge plate 206 abuts against the bottom of the first cam 205, and the other end abuts against the bottom of the lower plate 212. The second pallet frame 211 is used to support and mount various components. When cam 205 rotates, it drives crank connecting rod 207 to move back and forth, further driving the second slider 208 at the other end of crank connecting rod 207 to slide back and forth on guide rail 209, ultimately realizing the back-and-forth movement of seedling tray claw 204. This back-and-forth movement, combined with the previous up-and-down movement of seedling tray claw 204, can realize the action of gradually pushing the material tray 201 forward, thereby realizing the delivery of seedlings. The first function of cam 205 is to drive crank connecting rod 207 to move back and forth. The second function is to squeeze the bridge plate 206 at its bottom, thereby realizing the left and right prying of bridge plate 206. When one end of bridge plate 206 is squeezed to the bottom by cam 205, the other end of bridge plate 206 will pry the lower plate 212 upward to the highest position. When one end of bridge plate 206 is in the recess of cam 205, the other end of bridge plate 206 is at the lowest position, and at the same time, it drives the lower plate 212 to descend, ultimately realizing the up-and-down movement of seedling tray claw 204.

[0046] The seedling grasping device 300 includes a limiting plate 304, consisting of two vertically arranged plates on the left and right sides of the frame 100. Vertical slide rails 305 are provided on both sides of the limiting plate 304, and first sliders 306 are respectively mounted on the vertical slide rails 305. Horizontal slide rails 307 are mounted on the two first sliders 306. A fourth guide groove 308 is also provided on the limiting plate 304, and a support connecting rod 309 perpendicular to the limiting plate 304 is slidably mounted in the guide groove. The rod 309 is also slidably mounted on the horizontal slide rail 307. A second connecting rod 303 is rotatably mounted on the supporting connecting rod 309 located between the horizontal slide rail 307 and the limiting plate 304. The other end of the second connecting rod 303 is rotatably mounted on the bearing seat 325 fixed on the frame 100. A clearance groove 327 is provided on the second connecting rod 303. A first connecting rod 302 is rotatably mounted in the middle of the second connecting rod 303. A cam 301 is rotatably mounted on the other end of the first connecting rod 302. There are two limiting plates 304, which are used to support and install the components therein. The fourth guide groove 308 provided on the limiting plate 304 provides a guiding function for the movement of the supporting connecting rod 309, so that the insertion part 311 in the middle of the supporting connecting rod 309 can be accurately inserted into the material tray 201 to grasp the seedlings therein. The vertical slide rail 305, the first slider 306, and the horizontal slide rail 307 provide better support and fixation for the supporting connecting rod 309 as it moves along the fourth guide groove 308. Furthermore, the motion device, consisting of two degrees of freedom (vertical and horizontal slide rails), allows the supporting connecting rod 309 greater freedom of movement and makes it easier to move along the trajectory of the fourth guide groove 308. The second connecting rod 303, the first connecting rod 302, and the second cam 301 rotate when the motor 502 is running. The second cam 301 drives the first connecting rod 302 to push or pull the second connecting rod 303 back and forth, causing the second connecting rod 303 to rotate around the bearing seat 325 fixed on the frame 100. The clearance groove 327 and the fourth guide groove 308 within the rotating second connecting rod 303 cooperate to cause the supporting connecting rod 309 to reciprocate within the clearance groove 327 and the fourth guide groove 308, thus completing one seedling grasping action after another.

[0047] A support housing 310 is provided between the two supporting connecting rods 309. Inside the support housing 310 are two mounting portions 316 and a first driving device 312. The support housing 310 has two sets of first guide grooves 318 for the mounting portions 316 to slide. The first driving device 312 drives the mounting portions 316 to move along the length of the first guide grooves 318. The distance between the two sets of first guide grooves 318 gradually decreases from top to bottom. An insertion portion 311 is provided at the bottom of the mounting portion 316, and the insertion portion 311 is fixedly connected to the mounting portion 316 by a threaded component. At least two first rollers 314 are provided at both ends of the mounting portion 316, and the first rollers 314 are used to roll along the length of the first guide grooves 318. The support housing 310 supports and mounts the insertion portions 311 and the first driving device 312, and is fixedly connected to the two supporting connecting rods 309, allowing the support housing 310 and its components to move with the supporting connecting rods 309, thus serving to clamp seedlings. The bottom of the mounting part 316 is used to mount the insertion part 311. The upper center of the mounting part 316 is located in the second guide groove 317, and the outer side of the upper part of the mounting part 316 is located in the first guide groove 318. When the electromagnetic telescopic rod 320 extends downward, the mounting part 316 can move up and down simultaneously in the first guide groove 318 and the second guide groove 317, thereby bringing the distance between the two mounting parts 316 closer and closer to complete the seedling grabbing, and conversely, to complete the seedling release. The first driving device 312 is used to drive the mounting plate 319 to move up and down, further driving the mounting part 316 therein to move up and down along the first guide groove 318. The distance between the first guide grooves 318 gradually decreases from top to bottom. When the mounting part 316 moves up and down in the first guide groove 318, the grabbing and releasing actions can be realized. At least two first rollers 314 are provided at both ends of the mounting part 316. The first rollers 314 can reduce the resistance when the mounting part 316 moves in the first guide groove 318, and can change the orientation of the mounting part 316 according to the direction of the first guide groove 318, so that its movement is smoother.

[0048] The first driving device 312 includes an electromagnetic telescopic rod 320 and a mounting plate 319. The electromagnetic telescopic rod 320 is mounted on the support housing 310 and is used to drive the mounting plate 319 to move. The mounting plate 319 is connected to two mounting parts 316. The mounting plate 319 is provided with two second guide grooves 317. The end of the mounting part 316 away from the insertion part 311 is provided with a slot 321. The two side walls of the slot 321 are rotatably connected to second rollers 315, which can roll along the length direction of the second guide grooves 317. The support housing 310 is provided with a fixing plate 313 for fixing the electromagnetic telescopic rod 320. The fixing plate 313 is integrally formed with the support housing 310. The first driving device 312 is an electromagnet that can drive the extension and retraction of the electromagnetic telescopic rod 320, further driving the mounting plate 319 fixedly mounted on the end of the electromagnetic telescopic rod 320 to move up and down, and finally driving the mounting parts 316 disposed therein to move up and down. The second roller 315 is mounted on the mounting part 316 and located in the second guide groove 317, allowing the distance between the two mounting parts 316 to move further apart or closer together, thereby achieving a gripping action. The fixing plate 313 is used to fix the first drive device 312, which is mounted in the support housing 310.

[0049] The bottom of each of the two supporting housings 310 is provided with a placement groove 322, which is fixedly connected to the frame 100 by a third connecting rod 326. A rotating opening and closing plate 324 is provided at the bottom of the placement groove 322, and a trigger rod 323 is provided on the opening and closing plate 324. The placement groove 322 is used to catch seedlings that fall from the insertion part 311, and the opening and closing plate 324 at the bottom is used to hold the seedlings. When the trigger rod 323 is pushed by the trigger 406, the opening and closing plate 324 rotates open, allowing the seedlings in the placement groove 322 to slide into the seedling receiving cup that just passes through the bottom. After the trigger 406 has completely passed through, the spring in the rotating part of the opening and closing plate 324 will cause the opening and closing plate 324 to return to its original position, sealing the bottom of the placement groove 322 again, awaiting the entry of new seedlings.

[0050] The rotary seeding device 400 includes a feeding shaft 415, which is rotatably fixed to the frame 100 via a bearing seat 418. One end of the feeding shaft 415 is equipped with a pulley 417, and the other end is equipped with a fixing plate 412. At least three circularly arranged third rollers 405 are arranged on the inner surface of the fixing plate 412. A triangular plate 411 is fastened to each third roller 405, and a circular hole 407 is provided in the center of the triangular plate 411, which is fastened to the three third rollers 405. On the upper part 05, a Ferris wheel 416 is installed on the feeding shaft 415. Three auxiliary arms 414, spaced 120° apart, are mounted on the Ferris wheel 416. Seedling cups 401 are installed between the auxiliary arms 414. A trigger rod 419 is located between the two middle auxiliary arms 414, and a trigger 406 is installed at the top of the trigger rod 419. A feeding connecting rod 413 is fixedly connected to the auxiliary arm 414 near the triangular plate 411. The other end of the feeding connecting rod 413 is rotatably mounted on the three corners of the triangular plate 411. The feeding shaft 415 is the power transmission component and mounting support component of the entire rotary seeding device 400. Both ends of the feeding shaft 415 are mounted on the frame 100 via bearing seats 418, providing stable support and rotation. A pulley 417 drives the feeding shaft 415 to rotate via a transmission belt 501, providing power. The fixed plate is used to install the triangular plate 411. Three third rollers 405 are arranged in a ring on its inner side. The round hole 407 in the center of the triangular plate 411 engages with it, allowing the triangular plate 411 to rotate around the three third rollers 405. The auxiliary arm 414 is used to install the seedling cup 401 and the trigger rod 419. The trigger 406 at the top of the trigger rod 419 can disengage the trigger rod 323 during rotation, causing the opening plate 324 to open, allowing the seedling to fall into the seedling cup 401 below. When the feeding shaft 415 rotates, the auxiliary arm 414 acts as the driving crank in the crank-slider mechanism, the feeding connecting rod 413 acts as the connecting rod in the crank-slider mechanism, and the triangular plate 411 acts as the driven crank in the crank-slider mechanism. This allows the 404 plumb bob to remain in contact with the ground throughout its rotation and contact with the soil, leaving a vertical planting pit on the ground upon contact. The planting pit is completed when the 404 plumb bob reaches its lowest point.

[0051] A fixed shaft 410 is symmetrically arranged on the seedling cup 401. The fixed shaft 410 is rotatably connected to the end of the attached arm 414. A pointed nozzle 404 is rotatably arranged on both sides of the seedling cup 401. A support rod 403 is rotatably arranged on the pointed nozzle 404. One end of the support rod 403 is rotatably mounted on the pointed nozzle 404, and the other end is rotatably connected to another support rod 403. A retaining connecting rod 402 is arranged on one side of the pointed nozzle 404, and the other end of the retaining connecting rod 402 is mounted on the other side of the pointed nozzle 404. A lifting guide rail 408 is also provided at the bottom of the frame 100, which cooperates with the support rod 403. A lifting arc surface 409 is provided on the lifting guide rail 408. The fixed shaft 410 is used to connect the seedling cup 401 and the attached arm 414 together. The pointed nozzle 404 is used to receive seedlings and to dig planting pits before planting the seedlings. When the feeding shaft 415 rotates and the nozzle 404 is at its lowest point, the connection between the two support rods 403 also contacts the lowest point of the lifting arc surface 409. As the motor 502 continues to operate, the feeding shaft 415 rotates clockwise, and the rotating seeding mechanism rotates clockwise, causing the connection between the two support rods 403 to contact the lowest point of the lifting arc surface 409. As the nozzle 404 rotates further clockwise, the lifting arc surface 409 will continue to rotate clockwise, pressing upwards on the connection between the support rods 403, causing the two nozzles 404 connected to the support rods 403 to rotate outwards and open, allowing the seedlings between the two nozzles 404 to fall into the planting pit. As the nozzle 404 continues to rotate, when the connection between the support rods 403 leaves the highest point of the lifting arc surface 409, the two nozzles 404 close again due to the tension spring between them, allowing for the next round of seedling loading and unloading.

[0052] The transmission device 500 includes a motor 502. A gear 503 is mounted on the shaft of the motor 502. Gears 504 and 505 are sequentially connected to gear 503. A transmission rod 509 is mounted on gear 504. A pulley 507 is mounted at the end of transmission rod 509. A transmission belt 501 is mounted on pulley 507. The other end of transmission belt 501 is mounted on pulley 417. A transmission rod 511 is mounted on gear 505. A transmission belt 510 is mounted on transmission rod 511. The other end of transmission belt 510 is mounted on pulley 506. A transmission rod 508 is mounted on pulley 506. Both ends of transmission rod 508 are fixedly connected to cam 301. One end of transmission rod 511 is fixedly connected to cam 205. When motor 502 starts working, transmission rod 508 drives cam 301 to rotate, thus gripping the seedlings. Transmission rod 509 drives transmission belt 501 to rotate, which in turn drives pulley 417 to rotate, and finally drives the feeding shaft 415 to rotate, thus planting the seedlings. Transmission rod 511 drives cam 205 to rotate, thus feeding the seedlings, forming a complete seedling planter that conveys, grips, and plants the seedlings.

[0053] Working principle: First, the seed tray 201 containing seedlings is placed on the drag bar 202. At this time, the seedling tray claw 204 at the bottom just fits into the gap at the bottom of the seed tray 201. The motor 502 starts to run, driving the cam 205 to rotate. The crank connecting rod 207 connected to the cam 205 drives the second slider 208 to slide left and right on the guide rail 209. At this time, due to the special shape of the cam, the cam 205 will cause one end of the bridge plate 206 at its bottom to move up and down along the contour of the cam 205. At this time, the bridge plate 206 at the other end of the lower plate 212 will push the seedling tray claw 204 up and down, thereby realizing the seedling tray claw 204 to push the seed tray 201 forward one grid at a time from the bottom of the seed tray 201, completing the seedling delivery.

[0054] When the seedlings are transported to the bottom of the seedling gripping device 300, the operation of the motor 502 drives the second cam 301 to rotate, which in turn drives the first connecting rod 302 to pull the second connecting rod 303 to rotate. At this time, the support connecting rod 309 assembled in the second connecting rod 303 moves downward along the fourth guide groove 308, so that the insertion part 311 is gradually inserted into the material tray 201, thereby realizing the gripping of the seedlings. When the support connecting rod 309 moves to the bottom of the fourth guide groove 308, the electromagnetic telescopic rod 320 moves downward. Due to the action of the first guide groove 318 and the mounting plate 319, the two insertion parts 311 gradually move downward from above. During the downward movement, the two insertion parts 311 gradually move closer to each other. When the insertion part 311 moves to the bottom, the seedling is grasped. At this time, with the operation of the motor 502, the cam 301 pushes the first connecting rod 302 forward, thereby driving the second connecting rod 303 to reset, and further driving the support connecting rod 309 to reset. With the reset of the support connecting rod 309, the insertion part 311 moves with the seedling inside to the top of the placement groove 322. At this time, the electromagnetic telescopic rod 320 moves upward, the distance between the insertion parts 311 increases, and the seedlings between the insertion parts 311 fall into the placement groove 322.

[0055] As the motor 502 operates, the rotary seeding device 400 also rotates. When the seedling falls into the placement trough 322, the trigger 406 on the trigger rod 2 419 just contacts the trigger rod 1 323. As the trigger 406 rotates further, it pushes the trigger rod 1 323 to rotate the opening and closing plate 324, and the seedling in the placement trough 322 falls into the seedling receiving cup 401. As the feeding shaft 415 rotates further, when the nozzle 404 contacts the ground, since the two nozzles 404 are in a closed state at this time, and the fixed plate 412, the triangular plate 411 and the feeding connecting rod 413 ensure that the nozzles 404 are always perpendicular to the ground, after the nozzles 404 contact the ground, they can dig in the ground to form a planting pit as the nozzles 404 continue to rotate. When the support rod 403 on the nozzle 404 contacts the lowest point of the lifting arc surface 409, the planting pit is dug. As the nozzles 404 continue to rotate, the connection of the support rod 403 will be squeezed by the lifting arc surface 409, causing the support rod 403 to open the two nozzles 404. After the nozzles 404 are opened, the seedlings located in them can fall accurately into the planting pit. When the connection of the support rod 403 is separated from the highest point of the lifting arc surface 409, the tension spring between the nozzles 404 will close the nozzles 404 again, and then the next round of planting will begin. This achieves the effects of improving sowing efficiency, reducing sowing labor intensity, reducing labor costs, saving a large amount of seedlings, facilitating crop management and harvesting, and ultimately increasing yield.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seedling planter, characterized in that: The device includes a frame (100), a tray feeding device (200), a seedling gripping device (300), a rotary seeding device (400), and a transmission device (500). The tray feeding device (200), seedling gripping device (300), rotary seeding device (400), and transmission device (500) are respectively arranged in the frame (100). The tray feeding device (200) includes a tray (201) placed on top. The tray feeding device (200) can intermittently transport the seedlings placed in the tray (201) forward. A drag bar (202) is provided in the center seam at the bottom of the tray (201). One end of the drag bar (202) is fixed to the frame (100). The bottom of the tray is provided with a seedling tray claw (204) that fits into the bottom gap of the material tray (201). A feeding plate (203) is fixedly provided at the bottom of the seedling tray claw (204). A lower plate (212) perpendicular to the feeding plate (203) is provided at the bottom of the feeding plate (203). A second tray frame (211) is provided on the frame (100). A first cam (205) is provided on the second tray frame (211). A crank connecting rod (207) is provided on the first cam (205). The other end of the crank connecting rod (207) is connected to a second slider (208). A first guide rail (209) is fixedly provided on the second tray frame (211). A second slider (208) is slidably provided on the first guide rail (209). The second slider (208) is provided with a guide rail (210), and the lower plate (212) is slidably disposed on the guide rail (210). The tray frame (211) is also provided with a bridge plate (206) that can rotate around the center. One end of the bridge plate (206) abuts against the bottom of the cam (205), and the other end abuts against the bottom of the lower plate (212). The seedling gripping device (300) is disposed above the tray feeding device (200). The seedling gripping device (300) can grip the seedlings in the tray (201) at the end of the seedlings being conveyed by the tray feeding device (200). The seedling gripping device (300) includes a limiting plate (304), which consists of two vertically arranged plates. The limiting plate (304) is set on the left and right sides of the frame (100). Vertical slide rails (305) are provided on both sides of the limiting plate (304). First sliders (306) are respectively provided on the vertical slide rails (305). Horizontal slide rails (307) are provided on the two first sliders (306). The limiting plate (304) is also provided with a fourth guide groove (308). A support connecting rod (309) perpendicular to the limiting plate (304) is slidably arranged in the guide groove. The support connecting rod (309) is also slidably arranged on the horizontal slide rail (307). A second connecting rod (303) is rotatably arranged on the support connecting rod (309) located between the horizontal slide rail (307) and the limiting plate (304).The other end of the second connecting rod (303) is rotatably mounted on a bearing seat (325) fixed on the frame (100). A clearance groove (327) is provided on the second connecting rod (303). A first connecting rod (302) is rotatably mounted on the middle of the second connecting rod (303). A second cam (301) is rotatably mounted on the other end of the first connecting rod (302). A support housing (310) is provided between the two supporting connecting rods (309). The support housing (310) contains two mounting parts (316) and a first driving device (312). The support housing (310) has two sets of first guide grooves (318) for sliding of the mounting parts (316). A driving device (312) is used to drive the mounting part (316) to move along the length direction of the first guide groove (318). The distance between the two sets of first guide grooves (318) gradually decreases from top to bottom. An insertion part (311) is provided at the bottom of the mounting part (316). The insertion part (311) is fixedly connected to the mounting part (316) by a threaded part. At least two first rollers (314) are provided at both ends of the mounting part (316). The first rollers (314) are used to roll along the length direction of the first guide groove (318). The rotary seeding device (400) can pick up the seedlings that slip from the seedling grabbing device (300) and plant the seedlings in the soil. The transmission device (50) 0) Power is provided for the feed tray feeding device (200), the seedling grabbing device (300), and the rotary seeding device (400). The rotary seeding device (400) includes a feeding shaft (415), which is rotatably fixed on the frame (100) via a bearing seat (418). One end of the feeding shaft (415) is provided with a pulley (417), and the other end is provided with a fixing plate (412). At least three circularly arranged third rollers (405) are provided on the inner side of the fixing plate (412). A triangular plate (411) is fastened to the third roller (405). A circular hole (407) is provided in the middle of the triangular plate (411). The circular hole (407) is fastened to the third roller (405). On the three third rollers (405), a Ferris wheel (416) is provided on the feeding shaft (415). The Ferris wheel (416) is provided with three auxiliary arms (414) that are 120° apart in pairs. Seedling cups (401) are installed between the auxiliary arms (414). A trigger rod (419) is provided between the two middle auxiliary arms (414). A trigger (406) is provided on the top of the trigger rod (419). A feeding connecting rod (413) is fixedly connected to the auxiliary arm (414) near the triangle plate (411). The other end of the feeding connecting rod (413) is rotatably set on the three corners of the triangle plate (411). Fixed shafts (410) are symmetrically arranged on the seedling cups (401).The fixed shaft (410) is rotatably connected to the end of the attachment arm (414). A pointed nozzle (404) is rotatably mounted on both sides of the seedling cup (401). A support rod (403) is rotatably mounted on the pointed nozzle (404). One end of the support rod (403) is rotatably mounted on the pointed nozzle (404), and the other end is rotatably connected to another support rod (403). A retaining link (402) is mounted on one side of the pointed nozzle (404), and the other end of the retaining link (402) is mounted on the other side of the pointed nozzle (404). A lifting guide rail (408) that cooperates with the support rod (403) is also provided at the bottom of the frame (100). A lifting arc surface (409) is provided on the lifting guide rail (408).

2. The seedling planter according to claim 1, characterized in that: The first driving device (312) includes an electromagnetic telescopic rod (320) and a mounting plate (319). The electromagnetic telescopic rod (320) is disposed on the support housing (310) and is used to drive the mounting plate (319) to move. The mounting plate (319) is connected to two mounting parts (316). The mounting plate (319) is provided with two second guide grooves (317). The mounting part (316) is provided with a slot (321) at one end away from the insertion part (311). The two side walls of the slot (321) are rotatably connected with second rollers (315). The second rollers (315) can roll along the length direction of the second guide groove (317). The support housing (310) is provided with a fixing plate (313) for fixing the electromagnetic telescopic rod (320). The fixing plate (313) is integrally disposed with the support housing (310).

3. A seedling planter according to claim 2, characterized in that: The bottom of the two support housings (310) is provided with a placement groove (322), the placement groove (322) is fixedly connected to the frame (100) by a third connecting rod (326), the bottom of the placement groove (322) is provided with a rotating opening and closing piece (324), and a trigger rod (323) is provided on the opening and closing piece (324).

4. A seedling planter according to claim 1, characterized in that: The transmission device (500) includes a motor (502). A gear 1 (503) is mounted on the shaft of the motor (502). Gear 2 (504) and gear 3 (505) are sequentially connected to gear 1 (503). A transmission rod 2 (509) is mounted on gear 2 (504). A pulley 3 (507) is mounted at the end of transmission rod 2 (509). A transmission belt 1 (501) is mounted on pulley 3 (507). The transmission belt 1 (501) is further... One end is mounted on pulley one (417), gear three (505) is provided with transmission rod three (511), transmission rod three (511) is provided with transmission belt two (510), the other end of transmission belt two (510) is mounted on pulley two (506), transmission rod two (506) is provided with transmission rod one (508), both ends of transmission rod one (508) are fixedly connected to cam two (301), and one end of transmission rod three (511) is fixedly connected to cam one (205).

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