Seedling sowing machine

Abstract

The invention provides a seedling sowing machine, and belongs to the technical field of agriculture. The problems that vegetable planting in China consumes a large amount of manpower, material resources and financial resources and the seeding efficiency is low are solved. A seedling sowing machine comprises a frame, a tray feeding device, a seedling grabbing device, a rotating wheel sowing device and a transmission device, the tray feeding device comprises a tray placed at the top, seedlings placed in the tray can be intermittently conveyed forwards through the tray feeding device, the seedling grabbing device is arranged above the tray feeding device, and the rotating wheel sowing device is arranged above the tray feeding device. The seedling grabbing device can grab seedlings in the tray at the end where the tray feeding device conveys the seedlings, the rotating wheel seeding device can receive the seedlings sliding down from the seedling grabbing device and plant the seedlings in soil, and the transmission device provides power for the whole device. The device has the advantages of improving the seeding efficiency, reducing the labor intensity, reducing the labor cost, saving a large number of seedlings, facilitating crop management and harvesting and increasing the yield.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural technology, in particular to a seedling seeder. Background Art

[0002] With the development of factory-based seedling technology, the research and development and application of facilities and equipment such as precision sowing, germination and seedling greenhouses, and transportation have developed rapidly; international and domestic mechanical equipment products such as soil tillage machinery and plant protection machinery for open-field operations have matured and can be shared with other economic crop production, basically meeting production needs; plug seedling planting and leafy vegetable harvesting are the main research contents of leafy vegetable production machinery and equipment. In most leafy vegetable production areas in my country, the technology and equipment for factory-based seedling cultivation have matured, but the planting of vegetable seedlings is still mainly manual, with high labor intensity and low production efficiency; the harvesting machinery technology and products of large leafy vegetables such as cabbage in Europe and the United States are mature, which meets the actual production needs of my country; there is an urgent need for harvesting machinery and equipment for leafy vegetables such as green vegetables and Chinese cabbage, with China as the main production area.

[0003] At present, the main method of vegetable planting in my country is manual or semi-mechanized sowing, which consumes a lot of manpower, material and financial resources and has low sowing efficiency. The comprehensive mechanization level of vegetables is only about 20%, far lower than that of grain crops. At present, most seedling planting and sowing machines have low sowing efficiency, high sowing labor intensity, high labor cost, high plant damage rate, and are inconvenient for crop management and harvesting. Summary of the invention

[0004] Technical issues solved In view of the deficiencies of the prior art, the present invention provides a seedling seeder, which has the advantages of improving sowing efficiency, reducing sowing labor intensity, reducing manual labor costs, saving a large number of seedlings, facilitating crop management and harvesting, and ultimately increasing yields, and solves the problem that the vegetable planting method in my country is mainly manual or semi-mechanized sowing, which consumes a lot of manpower, material resources, and financial resources and has low sowing efficiency. The comprehensive mechanization level of vegetables is only about 20%, which is far lower than that of grain crops. At present, most seedling planting and sowing machines have low sowing efficiency, high sowing labor intensity, high manual labor costs, high plant damage rate, and are inconvenient for crop management and harvesting.

[0005] (II) Technical solution In order to achieve the above-mentioned purpose of improving sowing efficiency, reducing sowing labor intensity, reducing manual labor costs, saving a large number of seedlings, facilitating crop management and harvesting and ultimately increasing yields, the present invention provides the following technical solutions: a seedling seeder, comprising a frame, a tray feeding device, a seedling grabbing device, a rotary sowing device and a transmission device, wherein the tray feeding device, the seedling grabbing device, the rotary sowing device and the transmission device are respectively arranged in the frame, the tray feeding device comprises a tray placed on the top, the tray feeding device can intermittently transport the seedlings placed in the tray forward, the seedling grabbing device is arranged above the tray feeding device, the seedling grabbing device can grab the seedlings in the tray at the end of the tray feeding device conveying the seedlings, the rotary sowing device can receive the seedlings that slip off the seedling grabbing device and plant the seedlings in the soil, and the transmission device provides power for the tray feeding device, the seedling grabbing device and the rotary sowing device.

[0006] Preferably, the tray feeding device includes a tray, a drag rod is provided in the middle seam of the bottom of the tray, one end of the drag rod is fixed to the frame, a seedling tray claw fitting into the gap at the bottom of the tray is provided at the bottom of the tray, 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.

[0007] Preferably, a tray rack 2 is provided on the frame, a cam 1 is provided on the tray rack 2, a crank connecting rod is provided on the cam 1, the other end of the crank connecting rod is connected to a second slider, a guide rail 1 is fixedly provided on the tray rack 2, a second slider is slidably provided on the guide rail 1, a guide rail 2 is provided on the second slider, the lower plate is slidably provided on the guide rail 2, and a bridge plate rotatable around the middle is also provided on the tray rack 2, one end of the bridge plate abuts against the bottom of the cam 1, and the other end abuts against the bottom of the lower plate.

[0008] Preferably, the seedling grasping device includes a limiting plate, and the limiting plate consists of two pieces, which are vertically arranged on the left and right sides of the frame respectively. Vertical slide rails in the vertical direction are arranged on both sides of the limiting plate, and a first slider is arranged on the vertical slide rails respectively, and a horizontal slide rail is arranged on the two first sliders. A fourth guide groove is also arranged on the limiting plate, and a supporting connecting rod perpendicular to the limiting plate is slidably arranged in the guide groove, and the supporting connecting rod is also slidably arranged on the horizontal slide rail, and a second connecting rod is rotatably arranged on the supporting connecting rod located between the horizontal slide rail and the limiting plate, and the other end of the second connecting rod is rotatably arranged on a bearing seat 1 fixed on the frame, and a yield groove is arranged on the second connecting rod, and a first connecting rod is rotatably arranged on the middle part of the second connecting rod, and a cam 2 is rotatably arranged on the other end of the first connecting rod.

[0009] Preferably, a support shell is arranged between the two supporting connecting rods, and two mounting parts and a first driving device are arranged inside the support shell. Two groups of first guide grooves for sliding the mounting parts are arranged on the support shell, and the first driving device is used to drive the mounting part to move along the length direction of the first guide groove. The spacing between the two groups of the first guide grooves gradually decreases from top to bottom. An insertion part is arranged at the bottom of the mounting part, and the insertion part is fixedly connected to the mounting part by a screw member. At least two first rollers are arranged at both ends of the mounting part, and the first rollers are used to roll along the length direction of the first guide groove.

[0010] Preferably, the first driving device includes an electromagnetic telescopic rod and a mounting plate, the electromagnetic telescopic rod is arranged on the supporting shell, the electromagnetic telescopic rod is used to drive the mounting plate to move, the mounting plate is connected to the two mounting parts, the mounting plate is provided with two second guide grooves, the mounting part is provided with a slot at one end away from the insertion part, and second rollers are rotatably connected to both side walls of the slot, and the second rollers can roll along the length direction of the second guide groove, and the supporting shell is provided with a fixing plate 1 for fixing the electromagnetic telescopic rod, and the fixing plate 1 is integrated with the supporting shell.

[0011] Preferably, a placement groove is provided at the bottom of the two support shells, and the placement groove is fixedly connected to the frame through a third connecting rod. A rotating opening and closing piece is provided at the bottom of the placement groove, and a trigger rod 1 is provided on the opening and closing piece.

[0012] Preferably, the rotary seeding device includes a feeding shaft, which is rotatably fixed to the frame through a bearing seat, a pulley is provided at one end of the feeding shaft, and a fixing plate is provided at the other end, at least three third rollers arranged in a circle are provided on the inner side surface of the fixing plate, a triangular plate is buckled on the third roller, a circular hole is provided in the middle of the triangular plate, and the circular holes are buckled on the three third rollers, a Ferris wheel is provided on the feeding shaft, three attached arms are provided on the Ferris wheel, and seedling cups are installed between the attached arms, a trigger rod is provided between the middle two attached arms, a trigger is provided on the top of the trigger rod, a feeding connecting rod is fixedly connected to the attached arm close to the triangular plate, and the other end of the feeding connecting rod is rotatably provided on the three corners of the triangular plate.

[0013] Preferably, the seedling cup is symmetrically provided with a fixed axis, the fixed axis is rotatably connected to the end of the attached arm, and pointed mouths are rotatably provided on both sides of the seedling cup, a support rod is rotatably provided on the pointed mouth, one end of the support rod is rotatably provided on the pointed mouth, and the other end is rotatably connected to the other support rod, a retaining connecting rod is provided on the pointed mouth on one side, and the other end of the retaining connecting rod is provided on the pointed mouth on the other side, and a lifting guide rail cooperating with the support rod is also provided at the bottom of the frame, and a lifting arc surface is provided on the lifting guide rail.

[0014] Preferably, the transmission device includes a motor, a gear 1 is provided on the motor shaft of the motor, the gear 1 is sequentially linked with gear 2 and gear 3, a transmission rod 2 is provided on the gear 2, a pulley 3 is provided at the end of the transmission rod 2, a transmission belt 1 is provided on the pulley 3, the other end of the transmission belt 1 is assembled on the pulley 1, a transmission rod 3 is provided on the gear 3, a transmission belt 2 is provided on the transmission rod 3, the other end of the transmission belt 2 is assembled on the pulley 2, a transmission rod 1 is provided on the pulley 2, both ends of the transmission rod 1 are respectively fixedly connected to the cam 2, and one end of the transmission rod 3 is fixedly connected to the cam 1.

[0015] (III) Beneficial effects Compared with the prior art, the present invention provides a seedling seeder with the following beneficial effects: The seedling seeder is used in coordination with a frame, a tray feeding device, a seedling grabbing device, a rotary sowing device and a transmission device. First, the tray containing seedlings is placed on the drag rod, and the seedling tray claw at the bottom is just stuck in the gap at the bottom of the tray. The motor starts to run, driving the cam to rotate, and the crank connecting rod connected to the cam drives the second slider to slide left and right on the guide rail. At this time, due to the special shape of the cam, the cam will make one end of the bridge plate abutting at the bottom thereof move up and down along the contour of the cam. At this time, the other end of the bridge plate abutting against the lower plate will push the seedling tray claw up and down, so that the seedling tray claw pushes the tray forward from the bottom of the tray in a cycle, completing the transportation of the seedlings.

[0016] When the seedlings are transported to the bottom of the seedling grabbing device, as the motor runs, the cam 2 is driven to rotate, further driving the first connecting rod to pull the second connecting rod to rotate. At this time, the supporting connecting rod assembled in the second connecting rod moves downward along the fourth guide groove, so that the insertion part is gradually inserted into the tray to achieve the grabbing of the seedlings. When the supporting 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 the top. During the downward movement, the two insertion parts gradually approach each other. When the insertion part moves to the bottom, the grabbing of the seedlings is completed. At this time, as the motor runs, the cam 2 pushes the first connecting rod forward, thereby driving the second connecting rod to reset, and further driving the supporting connecting rod to reset. With the reset of the supporting connecting rod, the insertion part moves to the top of the placement groove with the seedlings therein. 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 groove.

[0017] As the motor runs, the rotary seeding device also rotates. When the seedling falls into the placement slot, the trigger on the trigger rod 2 just contacts the trigger rod 1. As the trigger rotates further, the trigger pushes the trigger rod 1 to rotate the opening and closing piece, and the seedling in the placement slot just falls into the seedling cup. As the feeding shaft rotates further, when the pointed mouth contacts the ground, since the two pointed mouths are in a closed state at this time, and the fixed plate 2, the triangular plate and the feeding connecting rod ensure that the pointed mouth is always perpendicular to the ground, after the pointed mouth contacts the ground, as the pointed mouth continues to rotate, it can be dug on the land to form a planting pit. When the support rod on the pointed mouth contacts the lowest point of the jacking arc surface, the planting pit is dug. As the pointed mouth continues to rotate, the support rod connection is squeezed by the jacking arc surface, which makes the support rod open the two pointed mouths. After the pointed mouth is opened, the seedling in it can fall into the planting pit accurately. When the support rod connection is separated from the highest point of the jacking arc surface, the tension spring between the pointed mouths closes the pointed mouth again, and then the next round of planting is carried out. Thereby achieving the effect of improving sowing efficiency, reducing sowing labor intensity, reducing labor costs, saving a large number of seedlings, facilitating crop management and harvesting, and ultimately increasing yields. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a seedling seeder according to the present invention; Figure 2 A side view of the structure of a seedling seeder according to the present invention; Figure 3 This is a structural schematic diagram of a feed tray feeding device for a seedling planter according to the present invention; Figure 4 This is a structural side view of a feed tray feeding device for a seedling planter according to the present invention; Figure 5A structural side view of a seedling grabbing device of a seedling planter according to the present invention; Figure 6 This is a structural schematic diagram of a seedling grabbing device of a seedling seeder according to the present invention; Figure 7 This is a schematic diagram of a support shell and internal structure of a seedling planter according to the present invention; Figure 8 This is a cross-sectional view of a support shell of a seedling planter according to the present invention; Fig. 9 This is a schematic diagram of the structure of a mounting plate, a mounting part and an insertion part of a seedling planter of the present invention; Fig.10 This is a schematic diagram of a seedling planter placement slot structure of the present invention; Fig.11 This is a schematic structural diagram of a rotary sowing device for a seedling sowing machine according to the present invention; Fig.12 This is a schematic diagram of the internal frame structure of a rotary sowing mechanism of a seedling seeder according to the present invention; Fig.13 This is a schematic diagram of the seedling receiving cup and the pointed mouth structure of a seedling seeder of the present invention; Fig.14 The present invention is a schematic diagram of the structure of a transmission device of a seedling seeder.

[0019] In the figure: 100 frames; 200 tray feeding device, 201 tray, 202 drag rod, 203 feeding plate, 204 seedling tray claw, 205 cam 1, 206 bridge plate, 207 crank connecting rod, 208 second slide block, 209 guide rail 1, 210 guide rail 2, 211 tray frame 2, 212 lower plate; 300 seedling grasping 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 supporting connecting rod, 310 supporting shell, 311 inserting 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 yielding groove; 400 rotary sowing device, 401 seedling cup, 402 holding link, 403 support rod, 404 pointed mouth, 405 third roller, 406 trigger, 407 round hole, 408 lifting guide rail, 409 lifting arc surface, 410 fixed shaft, 411 triangular plate, 412 second fixed plate, 413 unloading link, 414 attached arm, 415 unloading rotating shaft, 416 Ferris wheel, 417 first pulley, 418 second bearing seat, 419 second trigger rod; 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 DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-14 A seedling sowing machine includes a frame 100, a tray feeding device 200, a seedling grabbing device 300, a rotary sowing device 400 and a transmission device 500. The tray feeding device 200, the seedling grabbing device 300, the rotary sowing device 400 and the transmission device 500 are respectively arranged in the frame 100. The tray feeding device 200 includes a tray 201 placed on the top. The tray feeding device 200 can space the seedlings placed in the tray 201. The seedlings are transported forward in an intermittent manner, and the seedling grabbing device 300 is arranged 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 transported by the tray feeding device 200. The rotary sowing device 400 can receive the seedlings that slip from the seedling grabbing device 300 and plant the seedlings in the soil. The transmission device 500 provides power for the tray feeding device 200, the seedling grabbing device 300 and the rotary sowing device 400.

[0022] The tray feeding device 200 includes a tray 201, a drag rod 202 is arranged in the middle seam of the bottom of the tray 201, one end of the drag rod 202 is fixed on the frame 100, a seedling tray claw 204 is arranged at the bottom of the tray 201 to fit the gap at the bottom of the tray 201, a feed plate 203 is fixed at the bottom of the seedling tray claw 204, and a lower plate 212 perpendicular to the feed plate 203 is arranged at the bottom of the feed plate 203. The grids in the tray 201 are used to place seedlings to be sown, and the drag rod 202 is used to locate and limit the position of the tray 201, so that the seedling grasping device 300 can better realize the positioning and grasping of the seedlings, and reduce the damage to the seedlings due to inaccurate positioning during the grasping process. The seedling tray claw 204 can extend into the gap at the bottom of the tray 201, and with the cooperation of other parts, the tray 201 claw can push the tray 201 forward one grid at a time to realize the delivery of the seedlings. The lower plate 212 is used to support the feeding plate 203 at the top. Secondly, the bottom of the lower plate 212 is supported by 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, constituting an action for the tray 201 to move forward.

[0023] The frame 100 is provided with a second tray frame 211, a cam 205 is provided on the second tray frame 211, a crank connecting rod 207 is provided on the cam 205, the other end of the crank connecting rod 207 is connected to a second slider 208, a guide rail 209 is fixedly provided on the second tray frame 211, a second slider 208 is slidably provided on the guide rail 209, a guide rail 210 is provided on the second slider 208, a lower plate 212 is slidably provided on the guide rail 210, and a bridge plate 206 that can rotate around the middle is also provided on the second tray frame 211, 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 second tray frame 211 is used to support and install various components. When the cam 205 rotates, it can drive the crank connecting rod 207 to move back and forth, further driving the second slider 208 at the other end of the crank connecting rod 207 to slide back and forth on the guide rail 209, and finally realizing the forward and backward movement of the seedling tray claw 204. The forward and backward movement is combined with the previous up and down movement of the seedling tray claw 204, that is, the material tray 201 can be gradually pushed forward, thereby realizing the transportation of seedlings. The first function of the cam 205 is to drive the crank connecting rod 207 to move back and forth, and the second function is to squeeze the bridge plate 206 against the top thereof, so as to realize the left and right prying of the bridge plate 206. When one end of the bridge plate 206 is squeezed to the bottom by the cam 205, the other end of the bridge plate 206 will pry the lower plate 212 upward to the highest point. When one end of the bridge plate 206 is located in the concave part of the cam 205, the other end of the bridge plate 206 is located at the lowest point and the lower plate 212 descends, finally realizing the up and down movement of the seedling tray claw 204.

[0024] The seedling grabbing device 300 includes a limit plate 304, which is composed of two limit plates 304 respectively arranged vertically on the left and right sides of the frame 100, and vertical slide rails 305 are arranged on both sides of the limit plate 304. The vertical slide rails 305 are respectively provided with first sliders 306, and the two first sliders 306 are provided with horizontal slide rails 307. The limit plate 304 is also provided with a fourth guide groove 308, and a support connecting rod 309 vertically connected to the limit plate 304 is slidably arranged in the guide groove. The rod 309 is also slidably arranged on the horizontal slide rail 307. A second connecting rod 303 is rotatably arranged on the supporting connecting rod 309 between the horizontal slide rail 307 and the limiting plate 304. The other end of the second connecting rod 303 is rotatably arranged on a bearing seat 1 325 fixed on the frame 100. A clearance groove 327 is arranged on the second connecting rod 303. The first connecting rod 302 is rotatably arranged in the middle of the second connecting rod 303. A cam 2 301 is rotatably arranged on the other end of the first connecting rod 302. The limiting plate 304 has two pieces for supporting and installing the components therein. The fourth guide groove 308 arranged on the limiting plate 304 provides a guiding effect for the movement of the supporting connecting rod 309, so that the insertion portion 311 in the middle of the supporting connecting rod 309 can be accurately inserted into the material tray 201 to grab the seedlings therein. The vertical slide rail 305, the first slider 306 and the horizontal slide rail 307 enable the supporting connecting rod 309 to be better supported and fixed when it moves along the fourth guide groove 308, and the motion device composed of the two degrees of freedom of the vertical slide rail 305 and the horizontal slide rail 307 can make the supporting connecting rod 309 have a higher degree of freedom of movement and can more easily move along the track of the fourth guide groove 308. The second connecting rod 303, the third connecting rod 326 and the cam 2 301 drive the rotation of the cam 2 301 when the motor 502 is running, and the cam 2 301 drives the second connecting rod 303 to push or pull the third connecting rod 326 back and forth, so that the third connecting rod 326 rotates around the bearing seat 1 325 fixed on the frame 100, and the third connecting rod 326 rotates, and the clearance groove 327 and the fourth guide groove 308 cooperate to make the supporting connecting rod 309 reciprocate back and forth in the clearance groove 327 and the fourth guide groove 308, thereby completing the seedling grabbing action one by one.

[0025] A support shell 310 is arranged between the two support connecting rods 309, and two mounting parts 316 and a first driving device 312 are arranged inside the support shell 310. Two groups of first guide grooves 318 for sliding the mounting parts 316 are arranged on the support shell 310, and the first driving device 312 is used to drive the mounting parts 316 to move along the length direction of the first guide grooves 318. The spacing between the two groups of first guide grooves 318 gradually decreases from top to bottom. An insertion part 311 is arranged at the bottom of the mounting part 316, and the insertion part 311 is fixedly connected to the mounting part 316 by a screw member. At least two first rollers 314 are arranged at both ends of the mounting part 316, and the first rollers 314 are used to roll along the length direction of the first guide grooves 318. The support shell 310 is used to support and install the insertion part 311 and the first driving device 312 therein, and the support shell 310 is fixedly connected to the two support connecting rods 309, so that the support shell 310 and the components therein can move with the support connecting rods 309 to play the role of clamping seedlings. The bottom of the mounting portion 316 is used to mount the insertion portion 311, the upper middle portion of the mounting portion 316 is arranged in the second guide groove 317, and the outer side of the upper portion of the mounting portion 316 is arranged in the first guide groove 318. When the electromagnetic telescopic rod 320 extends downward, the mounting portion 316 can move up and down in the first guide groove 318 and the second guide groove 317 at the same time, while making the distance between the two mounting portions 316 closer and closer to complete the capture of the seedlings, and vice versa to complete the release of the seedlings. The first driving device 312 is used to drive the mounting plate 319 to move up and down, and further drive the mounting portion 316 therein to move up and down along the first guide groove 318. The spacing between the first guide grooves 318 gradually decreases from top to bottom, and when the mounting portion 316 moves up and down in the first guide groove 318, the clamping and releasing actions can be achieved. At least two first rollers 314 are provided at both ends of the mounting portion 316. The first rollers 314 can reduce the resistance of the mounting portion 316 when it moves in the first guide groove 318, and can change the orientation of the mounting portion 316 according to the direction of the first guide groove 318, so that its movement is smoother.

[0026] The first driving device 312 includes an electromagnetic telescopic rod 320 and a mounting plate 319. The electromagnetic telescopic rod 320 is arranged on the supporting shell 310. The electromagnetic telescopic rod 320 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 with second rollers 315. The second rollers 315 can roll along the length direction of the second guide groove 317. The supporting shell 310 is provided with a fixing plate 1 313 for fixing the electromagnetic telescopic rod 320. The fixing plate 1 313 is integrated with the supporting shell 310. The first driving device 312 is an electromagnet, which can drive the extension and contraction of the electromagnetic telescopic rod 320, further drive the mounting plate 319 fixedly installed at the end of the electromagnetic telescopic rod 320 to move up and down, and finally drive the mounting part 316 arranged therein to move up and down. The second roller 315 is disposed on the mounting portion 316 and is located in the second guide groove 317 , so that the distance between the two mounting portions 316 can be moved away from or close to each other, thereby achieving a grasping action. The fixing plate 1 313 is used to fix the first driving device 312 installed in the supporting housing 310 .

[0027] The bottom of the two supporting shells 310 is provided with a placement groove 322, which is fixedly connected to the frame 100 through a third connecting rod 326. The bottom of the placement groove 322 is provided with a rotating opening and closing piece 324, and the opening and closing piece 324 is provided with a trigger rod 1 323. The placement groove 322 is used to receive the seedlings dropped from the insertion part 311, and the opening and closing piece 324 at the bottom is used to carry the seedlings therein. When the trigger rod 1 323 is pushed by the trigger 406, the opening and closing piece 324 rotates open, so that the seedlings in the placement groove 322 slide into the receiving cup just passing from the bottom. After the trigger 406 has completely passed, the spring in the rotating part of the opening and closing piece 324 will reset the opening and closing piece 324, and once again seal the bottom of the placement groove 322, waiting for new seedlings to fall in.

[0028] The rotary seeding device 400 includes a feed shaft 415, which is rotatably fixed on the frame 100 through a bearing seat 418. A pulley 417 is provided at one end of the feed shaft 415, and a fixing plate 412 is provided at the other end. At least three third rollers 405 arranged in a circular shape are provided on the inner side surface of the fixing plate 412. A triangular plate 411 is buckled on the third roller 405. A circular hole 407 is provided in the middle of the triangular plate 411. The circular hole 407 is buckled on the three third rollers 405. 05, a Ferris wheel 416 is arranged on the unloading shaft 415, and three attached arms 414 are arranged on the Ferris wheel 416, with the two attached arms 414 being 120 degrees apart, and a seedling cup 401 is installed between the attached arms 414, and a trigger rod 419 is arranged between the two middle attached arms 414, and a trigger 406 is arranged on the top of the trigger rod 419, and a unloading connecting rod 413 is fixedly connected to the attached arm 414 on the side close to the triangular plate 411, and the other end of the unloading connecting rod 413 is rotatably arranged on the three corners of the triangular plate 411. The unloading shaft 415 is the power transmission part and the mounting support part of the entire rotary seeding device 400, and the two ends of the unloading shaft 415 are arranged on the frame 100 through the bearing seat 2 418 to provide stable support and rotation. The pulley 1 417 drives the unloading shaft 415 to rotate through the transmission belt 1 501 to provide power. The fixing plate is used to install the triangular plate 411. The three third rollers 405 on the inner side are arranged in a ring shape. The circular hole 407 in the middle of the triangular plate 411 is buckled on it, so that the triangular plate 411 can rotate around the third roller 405. The attached arm 414 is used to install the seedling cup 401 and the trigger rod 2 419. The trigger 406 on the top of the trigger rod 2 419 can push the trigger rod 1 323 during the rotation process to open the opening and closing piece 324, and the seedlings therein will fall into the seedling cup 401 below. When the feeding shaft 415 rotates, the attached arm 414 is equivalent to the active crank in the crank slider mechanism, the feeding connecting rod 413 is equivalent to the connecting rod in the crank slider mechanism, and the triangular plate 411 is equivalent to the driven crank in the crank slider mechanism. Therefore, the pointed mouth 404 can always be kept plumb with the ground during the rotation and contact with the ground, so that a vertical planting hole is left on the ground after contacting the ground. When the pointed mouth 404 reaches the lowest point, the planting hole is excavated.

[0029] The seedling cup 401 is symmetrically provided with a fixed shaft 410, which is rotatably connected to the end of the attached arm 414. The seedling cup 401 is also rotatably provided with a sharp mouth 404 on both sides, and a support rod 403 is rotatably provided on the sharp mouth 404. One end of the support rod 403 is rotatably provided on the sharp mouth 404, and the other end is rotatably connected to another support rod 403. A retaining connecting rod 402 is provided on the sharp mouth 404 on one side, and the other end of the retaining connecting rod 402 is provided on the sharp mouth 404 on the other side. The bottom of the frame 100 is also provided with a lifting guide rail 408 that cooperates with the support rod 403, and a lifting cambered 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 sharp mouth 404 is used to receive the seedlings on the one hand, and on the other hand, a planting pit can be dug before the seedlings are planted to complete the planting of the seedlings. When the feeding shaft 415 rotates, the pointed mouth 404 is at the lowest point, and the connection between the two struts 403 just touches the lowest point of the lifting arc surface 409. As the motor 502 continues to operate, the feeding shaft 415 rotates clockwise, and the rotary sowing mechanism rotates clockwise so that the connection between the two struts 403 touches the lowest point of the lifting arc surface 409. As the pointed mouth 404 rotates further clockwise, the lifting arc surface 409 will squeeze the connection of the strut 403 that continues to rotate clockwise upward, so that the two pointed mouths 404 connected to the strut 403 rotate outward and open, so that the seedlings between the two pointed mouths 404 fall into the planting pit. As the pointed mouth 404 continues to rotate, when the connection between the strut 403 is separated from the highest point of the lifting arc surface 409, due to the tension spring between the pointed mouths 404, the two pointed mouths 404 are closed again at this time, and the next round of seedling loading and seedling placing operations are carried out.

[0030] The transmission device 500 includes a motor 502, a gear 1 503 is arranged on the motor 502 shaft of the motor 502, a gear 2 504 and a gear 3 505 are sequentially connected on the gear 1 503, a transmission rod 2 509 is arranged on the gear 2 504, a pulley 3 507 is arranged at the end of the transmission rod 2 509, a transmission belt 1 501 is arranged on the pulley 3 507, and the other end of the transmission belt 1 501 is assembled on the pulley 1 417, a transmission rod 3 511 is arranged on the gear 3 505, a transmission belt 2 510 is arranged on the transmission rod 3 511, and the other end of the transmission belt 2 510 is assembled on the pulley 2 506, and a transmission rod 1 508 is arranged on the pulley 2 506, and both ends of the transmission rod 1 508 are respectively fixedly connected to the cam 2 301, and one end of the transmission rod 3 511 is fixedly connected to the cam 1 205. When the motor 502 starts working, the transmission rod 1 508 drives the cam 2 301 to rotate, and the seedlings are captured. The transmission rod 2 509 drives the transmission belt 1 501 to rotate, and then drives the pulley 1 417 to rotate, and finally drives the unloading shaft 415 to rotate, and the seedlings are planted. The transmission rod 3 511 drives the cam 1 205 to rotate, and then the seedlings are fed, forming a complete seeding machine for conveying, capturing and planting.

[0031] Working principle: first, place the tray 201 containing seedlings on the drag rod 202. At this time, the seedling tray claw 204 at the bottom is just stuck in the gap at the bottom of the tray 201, and 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 make one end of the bridge plate 206 that is against its bottom move up and down along the contour of the cam 205. At this time, the other end of the bridge plate 206 that is against the lower plate 212 will push the seedling tray claw 204 up and down, so that the seedling tray claw 204 can push the tray 201 forward from the bottom of the tray 201 one grid at a time to complete the transportation of the seedlings.

[0032] When the seedlings are transported to the bottom of the seedling grasping device 300, as the motor 502 runs, the cam 2 301 is driven to rotate, which further drives the first connecting rod 302 to pull the second connecting rod 303 to rotate. At this time, the supporting 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 grasping of the seedlings. When the supporting 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 the top. During the downward movement, the two insertion parts 311 gradually approach each other. When the insertion part 311 moves to the bottom, the seedlings are captured. At this time, with the operation of the motor 502, the cam 2 301 pushes the first connecting rod 302 to move forward, thereby driving the second connecting rod 303 to reset, and further driving the supporting connecting rod 309 to reset. With the reset of the supporting connecting rod 309, the insertion part 311 moves with the seedlings therein 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 becomes larger, and the seedlings between the insertion parts 311 fall into the placement groove 322.

[0033] As the motor 502 runs, the rotary seeding device 400 also rotates. When the seedlings fall into the placement slot 322, the trigger 406 on the trigger rod 2 419 just contacts the trigger rod 1 323. As the trigger 406 rotates further, the trigger 406 pushes the trigger rod 1 323 to rotate the opening and closing piece 324, and the seedlings in the placement slot 322 just fall into the seedling receiving cup 401. As the material discharging shaft 415 rotates further, when the pointed mouth 404 touches the ground, since the two pointed mouths 404 are in a closed state at this time, and the fixed plate 412, the triangular plate 411 and the material discharging connecting rod 413 ensure that the pointed mouth 404 is always perpendicular to the ground, after the pointed mouth 404 touches the ground, as the pointed mouth 404 continues to rotate, it can be dug on the land to form a planting pit. When the support rod 403 on the pointed mouth 404 contacts the lowest point of the jacking arc surface 409, the planting pit is dug. As the pointed mouth 404 continues to rotate, the connection of the support rod 403 is squeezed by the jacking arc surface 409, which will cause the support rod 403 to open the two pointed mouths 404. After the pointed mouth 404 is opened, the seedlings located therein can fall accurately into the planting pit. When the connection of the support rod 403 is separated from the highest point of the jacking arc surface 409, the tension spring between the pointed mouths 404 closes the pointed mouth 404 again, and then the next round of planting is carried out. Thereby achieving the effect of improving sowing efficiency, reducing sowing labor intensity, reducing labor costs, saving a large number of seedlings, facilitating crop management and harvesting, and ultimately increasing yields.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seedling seeder, characterized in that: The invention comprises a frame (100), a tray feeding device (200), a seedling grabbing device (300), a rotary sowing device (400) and a transmission device (500), wherein the tray feeding device (200), the seedling grabbing device (300), the rotary sowing device (400) and the transmission device (500) are respectively arranged in the frame (100), the tray feeding device (200) comprises a tray (201) placed on the top, and the tray feeding device (200) can intermittently feed the seedlings placed in the tray (201) The seedling grabbing device (300) is arranged above the tray feeding device (200), and the seedling grabbing device (300) can grab the seedlings in the tray (201) at the end of the seedlings transported by the tray feeding device (200). The rotary sowing device (400) can receive the seedlings that slip out of the seedling grabbing device (300) and plant the seedlings in the soil. The transmission device (500) provides power for the tray feeding device (200), the seedling grabbing device (300) and the rotary sowing device (400).

2. The seedling seeder according to claim 1, characterized in that: The material tray feeding device (200) comprises a material tray (201), a drag rod (202) is arranged in the middle seam of the bottom of the material tray (201), one end of the drag rod (202) is fixed to the frame (100), a seedling tray claw (204) is arranged at the bottom of the material tray (201) and fits into the seam at the bottom of the material tray (201), a feeding plate (203) is fixedly arranged at the bottom of the seedling tray claw (204), and a lower plate (212) perpendicular to the feeding plate (203) is arranged at the bottom of the feeding plate (203).

3. The seedling seeder according to claim 2, characterized in that: The frame (100) is provided with a tray frame 2 (211), a cam 1 (205) is provided on the tray frame 2 (211), a crank connecting rod (207) is provided on the cam 1 (205), the other end of the crank connecting rod (207) is connected to a second slider (208), a guide rail 1 (209) is fixedly provided on the tray frame 2 (211), a second slider (208) is slidably provided on the guide rail 1 (209), a guide rail 2 (210) is provided on the second slider (208), the lower plate (212) is slidably provided on the guide rail 2 (210), and a bridge plate (206) rotatable around a middle portion is further provided on the tray frame 2 (211), one end of the bridge plate (206) abuts against the bottom of the cam 1 (205), and the other end abuts against the bottom of the lower plate (212).

4. The seedling seeder according to claim 1, characterized in that: The seedling grabbing device (300) comprises a limit plate (304), wherein the limit plates (304) are two plates respectively arranged vertically on the left and right sides of the frame (100), and vertical slide rails (305) are arranged on both sides of the limit plate (304). The vertical slide rails (305) are respectively provided with first sliders (306), and the two first sliders (306) are provided with horizontal slide rails (307). The limit plate (304) is also provided with a fourth guide groove (308), and a support connecting rod (309) vertically connected to the limit plate (304) is slidably arranged in the guide groove. The connecting rod (309) is also slidably arranged on the horizontal slide rail (307); a second connecting rod (303) is rotatably arranged on the supporting connecting rod (309) between the horizontal slide rail (307) and the limiting plate (304); the other end of the second connecting rod (303) is rotatably arranged on a bearing seat 1 (325) fixed on the frame (100); a clearance groove (327) is arranged on the second connecting rod (303); a first connecting rod (302) is rotatably arranged in the middle of the second connecting rod (303); and a cam 2 (301) is rotatably arranged on the other end of the first connecting rod (302).

5. The seedling seeder according to claim 4, characterized in that: A support shell (310) is arranged between the two support connecting rods (309), and two mounting parts (316) and a first driving device (312) are arranged inside the support shell (310). Two groups of first guide grooves (318) for sliding the mounting parts (316) are arranged on the support shell (310), and the first driving device (312) is used to drive the mounting parts (316) to move along the length direction of the first guide grooves (318), and the spacing between the two groups of first guide grooves (318) gradually decreases from top to bottom. An insertion part (311) is arranged at the bottom of the mounting part (316), and the insertion part (311) is fixedly connected to the mounting part (316) by a screw member. At least two first rollers (314) are arranged at both ends of the mounting part (316), and the first rollers (314) are used to roll along the length direction of the first guide grooves (318).

6. The seedling seeder according to claim 5, characterized in that: The first driving device (312) comprises an electromagnetic telescopic rod (320) and a mounting plate (319); the electromagnetic telescopic rod (320) is arranged on the supporting shell (310); the electromagnetic telescopic rod (320) is used to drive the mounting plate (319) to move; the mounting plate (319) is connected to the two mounting portions (316); the mounting plate (319) is provided with two second guide grooves (317); an end of the mounting portion (316) away from the insertion portion (311) is provided with a slot (321); both 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 grooves (317); the supporting shell (310) is provided with a fixing plate 1 (313) for fixing the electromagnetic telescopic rod (320); the fixing plate 1 (313) is integrally arranged with the supporting shell (310).

7. The seedling seeder according to claim 6, characterized in that: A placement groove (322) is provided at the bottom of the two support shells (310), and the placement groove (322) is fixedly connected to the frame (100) via a third connecting rod (326). A rotatable opening and closing piece (324) is provided at the bottom of the placement groove (322), and a trigger rod 1 (323) is provided on the opening and closing piece (324).

8. The seedling seeder according to claim 1, characterized in that: The rotary seeding device (400) comprises a feeding shaft (415), wherein the feeding shaft (415) is rotatably fixed on the frame (100) via a second bearing seat (418), wherein a pulley (417) is arranged at one end of the feeding shaft (415), and a fixing plate (412) is arranged at the other end, wherein at least three third rollers (405) arranged in a circular shape are arranged on the inner side surface of the fixing plate (412), wherein a triangular plate (411) is buckled on the third rollers (405), wherein a circular hole (407) is arranged in the middle of the triangular plate (411), and wherein the circular hole (407) is buckled on the three third rollers (405). 05), a Ferris wheel (416) is arranged on the material unloading shaft (415), and three attached arms (414) are arranged on the Ferris wheel (416) with an angle of 120 degrees between each other, and a seedling cup (401) is installed between the attached arms (414), a trigger rod 2 (419) is arranged between the middle two attached arms (414), and a trigger (406) is arranged on the top of the trigger rod 2 (419), and a material unloading connecting rod (413) is fixedly connected to the attached arm (414) on one side close to the triangular plate (411), and the other end of the material unloading connecting rod (413) is rotatably arranged on the three corners of the triangular plate (411).

9. The seedling seeder according to claim 8, characterized in that: The seedling cup (401) is symmetrically provided with a fixed shaft (410), and the fixed shaft (410) is rotatably connected to the end of the attached arm (414). The seedling cup (401) is also rotatably provided with a pointed mouth (404) on both sides, and a support rod (403) is rotatably provided on the pointed mouth (404). One end of the support rod (403) is rotatably provided on the pointed mouth (404), and the other end is rotatably connected to another support rod (403). A retaining connecting rod (402) is provided on the pointed mouth (404) on one side, and the other end of the retaining connecting rod (402) is provided on the pointed mouth (404) on the other side. A lifting guide rail (408) that cooperates with the support rod (403) is also provided at the bottom of the frame (100), and a lifting arc surface (409) is provided on the lifting guide rail (408).

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

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