Automatic precision seeding device

Abstract

The present invention discloses an automatic precision sowing device suitable for sowing and raising seedlings in vegetable seedling trays, which is mainly composed of a frame, a conveying part, a sowing part, and a control part. The control part controls the conveying part arranged on the frame to convey the seedling tray to the bottom of the sowing part. The sowing part realizes precision sowing through a reciprocating motion mechanism and a rotating mechanism. The seedling tray conveyed to the bottom of the sowing part receives the seeds discharged by the sowing part, thereby completing the sowing. The conveying part then conveys the seeding-completed seeding seeding tray to the next operation link, realizing automatic assembly line operation. The present invention can realize automatic precision sowing of seedling trays of different sizes, improve the single-grain filling rate, enhance the sowing consistency, save labor, and improve operation efficiency.

Description

Technical Field

[0001] The invention relates to a sowing machine for sowing and raising seedlings in a seedling raising tray of crops, and in particular to an automatic precision sowing device suitable for sowing and raising seedlings in a seedling raising tray of vegetables. Background Art

[0002] In the process of crop cultivation, seedling cultivation is a key link. The quality of seedling cultivation will directly affect the yield and quality of crops. Improving the quality of seedling cultivation is the key to increasing production. Sowing is the first link in seedling cultivation. The accuracy and consistency of sowing directly affect the quality of seedling cultivation. In the mechanized sowing of crops, mechanical direct seeding and seedling tray sowing and transplanting are the two main methods of precision sowing. The traditional mechanical direct seeding method has the advantages of saving labor, saving costs and being efficient, but it has disadvantages such as poor consistency of seedling growth, low seedling rate and significantly reduced yield. Seedling tray sowing and transplanting can help increase yield, effectively reduce seed consumption, and make efficient and reasonable use of limited land. In the seeding and seeding of vegetable seedling trays, the magnetic return seeding device is widely used. It is mainly used for the sowing of vegetables, especially flat seeds such as pepper seeds. The seeding device has a compact structure and is easy to operate. It can complete the sowing of a seedling tray at a time. The sowing efficiency is high. After sowing, the survival rate of the seedlings is high, the growth is consistent, and the growth quality is good. However, there are the following major problems in the operation effect: (1) Manual operation of the seeding device is labor-intensive; (2) After repeated manual operation, it is easy to cause fatigue, resulting in reduced operation effect, poor sowing consistency and reduced sowing efficiency. In view of the problems of high labor intensity, reduced effect of repeated manual operation and poor sowing consistency of the existing manually operated magnetic return seeding device, the present invention designs an automatic precision sowing device suitable for sowing seedlings in vegetable seedling trays based on the magnetic return seeding device. Through the reciprocating and rotational motion of the sowing device, single-grain filling and precision sowing can be achieved. It has assembly line operation functions such as adjustable width and replaceable seeding device, can adapt to automatic precision sowing of seedling trays of different sizes, improves sowing consistency, can effectively ensure production efficiency, reduce seedling costs, and alleviate labor intensity. Summary of the Invention

[0003] The technical problem solved by the present invention is to provide an automatic precision seeding device to solve the problems in the above-mentioned background technology.

[0004] The technical problem solved by the present invention is achieved by adopting the following technical solutions:

[0005] The automatic precision seeding device includes a frame, a conveying part, a sowing part, and a control part. The conveying part is arranged under the frame, and the conveying part runs through the entire frame along the conveying direction. The sowing part is arranged in the middle of the upper part of the frame, and the control part is arranged at one end above the frame. The control part is used to control the conveying part to transport the seedling tray to the bottom of the sowing part, and then the control part controls the sowing part to complete the operation procedures of filling, collecting, resetting and discharging seeds, thereby realizing automatic sowing of the sowing tray. The control part transports the seeding tray that has completed sowing to the next operation link, and this cycle is repeated to realize assembly line operation.

[0006] In the present invention, the frame is mainly composed of a frame main body bracket, universal wheels, and a windshield. The frame main body bracket is spliced ​​with aluminum profiles, and the aluminum profiles are connected by angle keys and L keys. The universal wheels are arranged below the frame main body bracket. The universal wheels include lockable universal wheels and non-locking universal wheels. A windshield is arranged around the top of the frame main body bracket, and the windshield is a transparent acrylic plate.

[0007] In the present invention, the conveying part is mainly composed of a conveying belt, a smooth bar, a smooth bar bracket, a conveying driven wheel, a conveying driven shaft, a conveying bearing seat, a conveying motor, a conveying motor seat, a conveying motor sprocket, a conveying chain, a conveying driven sprocket, a conveying driving shaft, a conveying driving wheel, a conveying support shaft, a conveying support wheel, a photoelectric sensor, and a photoelectric sensor bracket. The conveying motor is arranged at the bottom of the frame through the conveying motor seat, a conveying motor sprocket is arranged on the power output shaft of the conveying motor, and the conveying driving shaft, the conveying driven shaft, and the conveying support shaft are respectively arranged on the frame through the conveying bearing seat, and the conveying support shaft is located between the conveying driving shaft and the conveying driven shaft. , the number of conveying support shafts is ≥1, the conveying driving wheel and the conveying sprocket are respectively fixed on the conveying driving shaft, the conveying driven shaft is provided with a conveying driven wheel, the conveying support shaft is provided with a conveying support wheel, the conveying driven wheel can rotate freely or be fixed on the conveying driven shaft, the conveying support wheel can rotate freely or be fixed on the conveying support shaft, one end of the conveying belt is sleeved on the conveying driving wheel, the other end of the conveying belt is sleeved on the conveying driven wheel, the middle part of the conveying belt is supported on the conveying support wheel, the smooth strip is adjustable through the smooth strip bracket and is set on the inside of the frame, and the smooth strip is located on one side of the conveying belt, and the photoelectric sensor is adjusted by light The electric sensor bracket is set on the frame, and the photoelectric sensor is located between the flow bar and the conveyor belt. Along the conveying direction of the seedling tray, the distance between the photoelectric sensor and the conveying intervention end is the length of a seedling tray. The installation position of the photoelectric sensor along the conveying direction of the seedling tray is adjustable to meet the needs of seedling trays of different sizes. The middle part of the conveyor belt is guided and supported by the conveying support wheel. The conveying motor sprocket and the conveying slave sprocket are driven by the conveying chain. The conveying slave sprocket drives the conveying driving wheel to rotate through the conveying driving shaft, thereby driving the circular operation of the conveyor belt. The seedling tray is placed on the conveyor belt and runs with the conveyor belt. When the conveyor belt transports the seedling tray, the flow bar The seedling tray is guided and limited to ensure that it runs in the predetermined direction. The center distance of the smooth strips on both sides is adjusted by adjusting the position of the smooth strip bracket to adapt to seedling trays of different sizes, especially different widths. When the seedling tray triggers the photoelectric sensor during transportation, the control integration system controls the conveying motor according to the trigger signal of the photoelectric sensor and then controls the conveying belt to stop running, and stops the seedling tray precisely at the sowing point. After the sowing operation is completed, the control integration system controls the conveying motor and then controls the conveying belt to start running, and transports the seeded seedling tray away from the sowing area and transported to the next operation link by the conveyor belt.

[0008] In the present invention, the sowing part is mainly composed of a sowing bracket, a hole-dropping mechanism, a reciprocating mechanism, a rotating mechanism, and a magnetic return type seeding device; wherein the sowing bracket is spliced ​​by aluminum profiles, and the aluminum profiles are connected by angle keys or L keys, and the sowing bracket is arranged above the frame;

[0009] The hole seeding mechanism includes an electric push rod, an L-shaped connector, and a U-shaped base. The U-shaped base is fastened to the sowing bracket, the L-shaped connector is fastened to the U-shaped base, and the electric push rod is fastened to the L-shaped connector. Under the action of the control integrated system, the electric push rod can do telescopic movement;

[0010] The reciprocating motion mechanism includes a seeding limit device, a seeding bracket, a reciprocating guide rail, a seeding bracket connecting piece, a reciprocating slider, a reciprocating push rod, a push rod guide block, a fisheye bearing, a synchronous shaft, a crank connecting rod, a crank, a reciprocating motor mounting platform, a reciprocating motor seat, and a reciprocating motor. The reciprocating guide rails are fixedly arranged on both sides above the rotating bracket in parallel, and a plurality of reciprocating sliders are respectively arranged on the reciprocating guide rails on both sides. The reciprocating sliders can slide on the reciprocating guide rails in a direction parallel to the guide rails. The seeding bracket connecting piece is fixedly arranged on the reciprocating slider, and the seeding bracket is fixedly arranged on the seeding bracket connecting piece. The seeding bracket is provided with a horizontal sensor. The seeding bracket is a hollow frame formed by fixed connection of profiles. The seeding bracket is parallel to the rotating bracket. The seeding bracket is provided with a seeding limit device. One end of the reciprocating guide rails on both sides is respectively fixed with a push rod guide block. The push rod The guiding direction of the guide block is consistent with the sliding direction of the reciprocating slider, and the reciprocating push rod is slidingly arranged on the push rod guide block, and one end of the reciprocating push rods on both sides is fixedly connected to the reciprocating slider or the seeding bracket connecting piece, and the other end of the reciprocating push rods on both sides is respectively provided with a fisheye bearing, and the fisheye bearings on both sides are connected through a synchronous shaft. The reciprocating motor is arranged on the reciprocating motor mounting platform through the reciprocating motor seat, and the reciprocating motor mounting platform is fixedly set on the rotating bracket, and a crank is provided on the output shaft of the reciprocating motor, one end of the crank connecting rod is connected to the synchronous shaft, and the other end of the crank connecting rod is connected to the crank, and the control integrated system controls the rotation of the reciprocating motor, and the reciprocating motor drives the synchronous shaft to reciprocate through the crank and the crank connecting rod, and the reciprocating push rods on both sides follow the synchronous shaft to reciprocate, and then the reciprocating push rod drives the reciprocating slider together with the seeding bracket connecting piece and the seeding bracket to reciprocate;

[0011] The rotating mechanism includes a rotating motor, a rotating motor seat, a rotating motor mounting platform, a coupling, a rotating bearing seat, a T-shaped connector, and a rotating bracket. The rotating bracket is a hollow frame formed by fixedly connecting profiles. T-shaped connectors are fixedly provided at both ends of the rotating bracket, and the rotation axes of the T-shaped connectors at both ends are coaxial. The T-shaped connectors at both ends can be rotatably provided on the sowing bracket through rotating bearing seats. The rotating motor is set on the rotating motor mounting platform through the rotating motor seat. The power output shaft of the rotating motor is connected to the T-shaped connector at one end through a coupling for transmission. The T-shaped connector at the other end and the corresponding rotating bearing seat are located in the U-shaped groove of the U-shaped base. The control integrated system controls the rotating motor to drive the rotating bracket to perform forward and reverse rotation. The control integrated system adjusts the rotating bracket according to the feedback signal of the horizontal sensor and then adjusts the horizontal state of the seeding bracket.

[0012] The magnetic return seeding device includes a seeding disc, a fixed seed filling plate, a movable seeding plate, a fixed magnetic block, and a movable magnetic block. A seed guard is arranged around the seeding disc to prevent the seeds from overflowing during movement. A groove is provided at the bottom of the seeding disc along the vertical direction of the reciprocating motion. When the seeding disc is tilted, the seeds move from one side to the other side along the groove. The seeding disc is provided with seed collecting areas at both ends along the groove. The fixed seed filling plate is provided with a seed filling hole, the movable seeding plate is provided with a seed filling hole, the fixed seed filling plate is provided with a fixed magnetic block, the movable seeding plate is provided with a movable magnetic block, the fixed seed filling plate is fixedly arranged at the bottom of the seeding disc, and the arranged seed filling holes correspond to the groove. The movable seeding plate can be movably arranged below the fixed seed filling plate, and the arrangement direction of the seed filling holes is consistent with the arrangement direction of the seed filling holes. In the seed filling state, the seed-forming hole and the seed-forming hole are in a dislocated state, and the seeds stay in the seed-forming hole. At this time, the relative position of the fixed seed-forming plate and the movable seed-forming plate is flexibly positioned by the suction force between the fixed magnetic block and the movable magnetic block. At this time, the fixed magnetic block and the movable magnetic block are in an overlapping state. When the electric push rod extends and the thrust acting on the movable seed-forming plate overcomes the suction force of the fixed magnetic block and the movable magnetic block, the movable seed-forming plate is pushed, and the seed-forming hole on the movable seed-forming plate corresponds to the seed-forming hole on the fixed seed-forming plate. At this time, the seeds staying in the seed-forming hole fall into the seedling tray on the conveyor belt through the seed-forming hole, thereby completing sowing. After sowing is completed, the electric push rod retracts, and the movable seed-forming plate returns to its initial position under the suction force of the fixed magnetic block and the movable magnetic block, and then carries out the next round of seed filling.

[0013] In the present invention, the control part is mainly composed of a control box, a control base, a control box cover, and a control integrated system. The control part is arranged above the conveyor belt at the rear of the frame, and the control part is located outside the wind shield. The control base is arranged on the frame, the control box is arranged on the control base, the control box cover is arranged on one side of the control box, and the control integrated system is arranged inside the control box; the control part is used for initializing the sowing part, controlling the start and stop of the sowing part, setting the motor speed, and setting relevant parameters of the seeding device.

[0014] In the present invention, the magnetic return type seeding device is arranged on the reciprocating motion mechanism, the reciprocating motion mechanism is arranged on the rotating mechanism, the rotating mechanism and the hole seeding mechanism are respectively arranged on the seeding bracket, the control part controls the reciprocating motion mechanism to drive the magnetic return type seeding device to do reciprocating translation, the control part controls the rotating mechanism to drive the reciprocating motion mechanism together with the magnetic return type seeding device to do forward and reverse rotation motion, the sown seeds are placed in the magnetic return type seeding device, and the seeds are filled, collected and reset under the joint action of the reciprocating motion mechanism and the rotating mechanism. After the magnetic return type seeding device completes the filling, collection and reset, the seeds are put into the seeding device. After resetting, the control part controls the hole seed dropping mechanism to push the magnetic return type seeding device to seed. After the control part cancels the push of the hole seed dropping mechanism on the magnetic return type seeding device, the magnetic return type seeding device returns to the waiting state for seeding and completes seeding again. The seeding and seeding work are completed in this cycle; the sowing part is arranged above the frame, and the sowing part is located in the wind shield. The control part controls the conveying part arranged on the frame to convey the seedling tray to the bottom of the sowing part, receives the seeds discharged by the sowing part, thereby completing the sowing, and the conveying part then conveys the seeding seeding tray to the next operation link.

[0015] Beneficial effects:

[0016] The present invention designs an automatic precision seeding device suitable for seeding and raising seedlings in seedling trays. The control integrated system controls the combined motion of the reciprocating motion mechanism and the rotating mechanism to automatically complete the seed filling, seed collection, resetting and seed dropping operations, thereby realizing automatic assembly line operation. The device has an adjustable seed tray width function, so that the device can complete automatic precision seeding of seedling trays of different sizes; improve the single-grain filling rate, enhance the sowing consistency, save labor, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the entire device according to a preferred embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of the entire device taken along line AA according to a preferred embodiment of the present invention;

[0019] Figure 3 This is a front view of the whole machine with a windshield installed in a preferred embodiment of the present invention;

[0020] Figure 4 This is an axonometric view of the conveying portion of a preferred embodiment of the present invention;

[0021] Figure 5 A partial diagram of the conveying portion of a preferred embodiment of the present invention;

[0022] Figure 6 A schematic diagram of the control part of a preferred embodiment of the present invention;

[0023] Figure 7An axonometric diagram is provided for the sowing portion of the preferred embodiment of the present invention;

[0024] Figure 8 A schematic diagram of the sowing isometric view of a preferred embodiment of the present invention Figure 1 ;

[0025] Figure 9 A schematic diagram of the sowing isometric view of a preferred embodiment of the present invention Figure 2 ;

[0026] Figure 10 This is a front view of the sowing part of a preferred embodiment of the present invention;

[0027] Figure 11 This is a schematic diagram of the hole-dropping mechanism of a preferred embodiment of the present invention;

[0028] Figure 12 A partial schematic diagram of the sowing part of a preferred embodiment of the present invention Figure 1 ;

[0029] Figure 13 A partial schematic diagram of the sowing part of a preferred embodiment of the present invention Figure 2 ;

[0030] Figure 14 This is a schematic diagram of a magnetic return type seed metering device according to a preferred embodiment of the present invention;

[0031] Figure 15 A schematic diagram of a T-shaped connector mechanism according to a preferred embodiment of the present invention;

[0032] Figure 16 This is a schematic diagram of the seeding reset horizontal state of a preferred embodiment of the present invention;

[0033] Figure 17 Schematic diagram of the seed filling and collection tilted state of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0035] See also Figures 1 to 17 The automatic precision seeding device is mainly composed of a frame 1, a control part 2, a conveying part 3, and a seeding part 4.

[0036] In this embodiment, the frame 1 includes a frame main support 11, a universal wheel 12, and a windshield 13. The control part 2 includes a control box 21, a control base 22, a control box cover 23, and a control integrated system 24. The conveying part 3 includes a conveying belt 31, a smooth strip 32, a smooth strip support 33, a conveying driven wheel 34, a conveying driven shaft 35, a conveying bearing seat 36, a conveying motor 37, a conveying motor seat 38, a conveying motor sprocket 39, a conveying chain 310, a conveying driven sprocket 311, a conveying active shaft 312, a conveying active wheel 313, a conveying support shaft 314, a conveying support wheel 315, a photoelectric sensor 316, and a photoelectric sensor support 317. The sowing part 4 includes a sowing support 41, a hole seeding mechanism 42, a rotating mechanism 43, a reciprocating motion mechanism 44, and a magnetic return type seeding device 45; wherein the hole seeding mechanism 42 includes an electric Push rod 421, L-shaped connector 422, U-shaped base 423, the rotating mechanism 43 includes a rotating motor 431, a rotating motor seat 432, a rotating motor mounting platform 433, a coupling 434, a rotating bearing seat 435, a T-shaped connector 436, and a rotating bracket 437. The reciprocating motion mechanism 44 includes a seeding limit device 441, a seeding bracket 442, a reciprocating guide rail 443, a seeding bracket connector 444, a reciprocating slider 445, a reciprocating push rod 446, a push rod guide block 447, a fisheye bearing 448, a synchronous shaft 449, a crank connecting rod 4410, a crank 4411, a reciprocating motor mounting platform 4412, a reciprocating motor seat 4413, and a reciprocating motor 4414. The magnetic return seeding device 45 also includes a seeding disc 451, a fixed seed filling plate 452, a movable seeding plate 453, a fixed magnetic block 454, and a movable magnetic block 456.

[0037] In this embodiment, the conveying part 3 is arranged below the frame 1, and the conveying part 3 runs through the entire frame 1 along the conveying direction. The sowing part 4 is arranged in the middle above the frame 1, and the control part 2 is arranged at one end above the frame 1. The control part 2 is used to control the conveying part 3 to transport the seedling tray to the bottom of the sowing part 4, and then the control part 2 controls the sowing part 4 to complete the operation procedures of filling, collecting, resetting and discharging seeds, thereby realizing automatic sowing of the sowing tray. The control part 2 transports the seeding tray that has completed sowing to the next operation link, and this cycle is repeated to realize assembly line operation.

[0038] In this embodiment, the rack main support 11 is made of aluminum profiles, and the aluminum profiles are connected by angle keys and L keys. The universal wheel 12 is arranged below the rack main support 11. The universal wheel 12 includes a lockable universal wheel and a non-locking universal wheel. A windshield 13 is arranged around the top of the rack main support 11, and the windshield 13 is a transparent acrylic plate.

[0039] In this embodiment, the control part 2 is arranged at a position above the tail of the frame 1, and the control part 2 is located outside the wind shield 13, the control base 22 is arranged on the frame 1, the control box 21 is arranged on the control base 22, the control box cover 23 is arranged on one side of the control box 21, and the control integrated system 24 is arranged inside the control box 21; the control part 2 is used to initialize the sowing part 4, control the start and stop of the sowing part 4, set the motor speed, and set the relevant parameters of the seeding device.

[0040] In this embodiment, the conveying motor 37 is arranged at the bottom of the frame 1 through the conveying motor seat 38, and a conveying motor sprocket 39 is provided on the power output shaft of the conveying motor 37. The conveying driving shaft 312, the conveying driven shaft 35, and the conveying support shaft 314 are respectively arranged on the frame 1 through the conveying bearing seat 36, and the conveying support shaft 314 is located between the conveying driving shaft 312 and the conveying driven shaft 35. The number of conveying support shafts 314 is ≥1, the conveying driving wheel 313 and the conveying sprocket 311 are respectively fixed on the conveying driving shaft 312, the conveying driven shaft 35 is provided with a conveying driven wheel 34, the conveying support shaft 314 is provided with a conveying support wheel 315, and the conveying driven wheel 34 can rotate freely Or it is fixed on the conveying driven shaft 35, the conveying support wheel 315 can rotate freely or be fixed on the conveying support shaft 314, one end of the conveying belt 31 is sleeved on the conveying active wheel 313, and the other end of the conveying belt 31 is sleeved on the conveying driven wheel 34. The middle part of the conveying belt 31 is supported on the conveying support wheel 315, and the smooth bar 32 is adjustable on the inner side of the frame 1 through the smooth bar bracket 33, and the smooth bar 32 is located on one side of the conveying belt 31, and the photoelectric sensor 316 is set on the frame 1 through the photoelectric sensor bracket 317, and the photoelectric sensor 316 is located between the smooth bar 32 and the conveying belt 31. Along the conveying direction of the seedling tray, the photoelectric sensor 316 is at a distance from the conveying medium The input end is the length of a seedling tray. The installation position of the photoelectric sensor 316 along the seedling tray conveying direction is adjustable to meet the needs of seedling trays of different sizes. The middle part of the conveying belt 31 is guided and supported by the conveying support wheel 315. The power of the conveying motor 37 is output through the conveying motor sprocket 39 and drives the conveying slave sprocket 311 through the conveying chain 310. The conveying motor sprocket 39 and the conveying slave sprocket 311 are transmitted through the conveying chain 310. The conveying slave sprocket 311 drives the conveying driving wheel 313 to rotate through the conveying driving shaft 312, thereby driving the circular operation of the conveying belt 31. The seedling tray is placed on the conveying belt 31 and runs with the conveying belt 31. When the conveying belt 31 conveys the seedling tray, the smooth strip 312 is used to move the seedling tray. 2. The seedling tray is guided and limited to ensure that the seedling tray runs in a predetermined direction. The center distance of the smooth strips 32 on both sides is adjusted by adjusting the position of the smooth strip bracket 33 to adapt to seedling trays of different sizes, especially different widths. When the seedling tray triggers the photoelectric sensor 316 during transportation, the control integrated system 24 controls the conveying motor 37 according to the trigger signal of the photoelectric sensor 316 and then controls the conveying belt 31 to stop running, and stops the seedling tray accurately at the sowing point. After waiting for the sowing operation to be completed, the control integrated system 24 controls the conveying motor and then controls the conveying belt 31 to start running, and transports the seedling tray that has completed sowing away from the sowing area, and is transported to the next operation link by the conveying belt 31.

[0041] In this embodiment, the sowing bracket 41 is formed by splicing aluminum profiles, and the aluminum profiles are connected by angle keys or L keys. The sowing bracket 42 is arranged above the frame 1.

[0042] In this embodiment, the U-shaped base 423 is fastened to the sowing bracket 41, the L-shaped connector 422 is fastened to the U-shaped base 423, and the electric push rod 421 is fastened to the L-shaped connector 422. Under the action of the control integrated system 24, the electric push rod 421 can perform telescopic movement.

[0043] In this embodiment, the rotating bracket 437 is a hollow frame formed by fixedly connecting profiles, and T-shaped connectors 436 are fixedly provided at both ends of the rotating bracket 437, and the rotation axes of the T-shaped connectors 436 at both ends are coaxial. The T-shaped connectors 436 at both ends can be rotatably set on the sowing bracket 41 through rotating bearing seats 435. The rotating motor 431 is set on the rotating motor mounting platform 433 through the rotating motor seat 432. The power output shaft of the rotating motor 431 is connected to the T-shaped connector 436 at one end through a coupling 434 for transmission, and the T-shaped connector 436 at the other end and the corresponding rotating bearing seat 435 are located in the U-shaped groove of the U-shaped base 423. The control integrated system 24 controls the rotating motor 431 to drive the rotating bracket 437 to perform forward and reverse rotation. The control integrated system 24 adjusts the rotating bracket 437 according to the feedback signal of the horizontal sensor and then adjusts the horizontal state of the seeding bracket 442.

[0044] In this embodiment, the reciprocating guide rails 443 are fixedly arranged on both sides above the rotating bracket 437 in parallel, and a plurality of reciprocating sliders 445 are respectively arranged on the reciprocating guide rails 443 on both sides. The reciprocating sliders 445 can slide on the reciprocating guide rails 443 in a direction parallel to the guide rails. The reciprocating sliders 445 are fixedly provided with a seeding bracket connector 444, and the seeding bracket 442 is fixedly provided on the seeding bracket connector 444. A horizontal sensor is provided on the seeding bracket 442. 42 is a hollow frame formed by a fixed connection of profiles. The seeding bracket 442 is parallel to the rotating bracket 437. The seeding bracket 442 is provided with a seeding limit device 441. One end of the reciprocating guide rails 443 on both sides is fixed with a push rod guide block 447. The guiding direction of the push rod guide block 447 is consistent with the sliding direction of the reciprocating slider 445. The reciprocating push rod 446 is slidably set on the push rod guide block 447. One end of the reciprocating push rod 446 on both sides is fixed with the reciprocating slider 445 or The seeding bracket connector 444 is fixedly connected, and the other ends of the reciprocating push rods 446 on both sides are respectively provided with fisheye bearings 448, and the fisheye bearings 448 on both sides are connected through the synchronous shaft 449. The reciprocating motor 4414 is set on the reciprocating motor mounting platform 4412 through the reciprocating motor seat 4413, and the reciprocating motor mounting platform 4412 is fixedly set on the rotating bracket 437. A crank 4411 is set on the output shaft of the reciprocating motor 4414, and one end of the crank connecting rod 4410 is connected to the synchronous shaft 449. The step shaft 449 is connected, and the other end of the crank connecting rod 4410 is connected to the crank 4411. The control integrated system 24 controls the rotation of the reciprocating motor 4414. The reciprocating motor 4414 drives the synchronous shaft 449 to perform reciprocating motion through the crank 4411 and the crank connecting rod 4410. The reciprocating push rods 446 on both sides follow the synchronous shaft 449 to perform reciprocating motion, and then the reciprocating push rods 446 drive the reciprocating slider 445 together with the seeding bracket connector 444 and the seeding bracket 442 to perform reciprocating motion.

[0045] In this embodiment, a seed guard is provided around the seeding disk 451 to prevent the seeds from overflowing during movement. A groove is provided at the bottom of the seeding disk 451 along the vertical direction of the reciprocating motion. When the seeding disk 451 is tilted, the seeds move from one side along the groove to the other side. The seeding disk 451 is provided with seed collection areas at both ends along the groove. The fixed seed filling plate 452 is provided with a seed filling hole, and the movable seeding plate 453 is provided with a seed filling hole. The fixed seed filling plate 452 is provided with a fixed magnetic block 454, and the movable seeding plate 453 is provided with a movable magnetic block 456. The fixed seed filling plate 452 is fixedly provided at the bottom of the seeding disk 451, and the arranged seed filling holes correspond to the groove. The movable seeding plate 453 can be movably provided below the fixed seed filling plate 452, and the arrangement direction of the seed filling holes is consistent with the arrangement direction of the seed filling holes. In the seed filling state, the seed filling holes and the seed filling holes are in a staggered state. 456 , the movable seed-measuring plate 453 is in an overlapping state. When the electric push rod 421 extends and the thrust acting on the movable seed-measuring plate 453 overcomes the suction force of the fixed magnetic block 454 and the movable magnetic block 456, the movable seed-measuring plate 453 is pushed, and the seed-measuring hole on the movable seed-measuring plate 453 corresponds to the seed-measuring hole on the fixed seed-measuring plate 452. At this time, the seeds staying in the seed-measuring hole fall into the seed-raising tray on the conveyor belt 31 through the seed-measuring hole, thereby completing sowing. After sowing is completed, the electric push rod 421 retracts, and the movable seed-measuring plate 453 returns to its initial position under the suction force of the fixed magnetic block 454 and the movable magnetic block 456, and the next round of seed filling is carried out.

[0046] In this embodiment, the magnetic return type seeding device 45 is arranged on the reciprocating motion mechanism 44, the reciprocating motion mechanism 44 is arranged on the rotating mechanism 43, the rotating mechanism 43 and the hole seeding mechanism 42 are respectively arranged on the sowing bracket 41, the control part 2 controls the reciprocating motion mechanism 44 to drive the magnetic return type seeding device 45 to do reciprocating translation, the control part 2 controls the rotating mechanism 43 to drive the reciprocating motion mechanism 44 together with the magnetic return type seeding device 45 to do forward and reverse rotation motion, the sown seeds are placed in the magnetic return type seeding device 45, and the seeding is completed under the joint action of the reciprocating motion mechanism 44 and the rotating mechanism 43. After the magnetic return type seeding device 45 is completed, the seeding is completed. After the seeds are filled, the control part 2 controls the hole seed dropping mechanism 42 to push the magnetic return type seeding device 45 to discharge the seeds. After the control part 2 cancels the push of the hole seed dropping mechanism 42 on the magnetic return type seeding device 45, the magnetic return type seeding device 45 returns to the seed filling state and completes the seed filling again. The seed filling and seeding work are completed in this cycle; the sowing part 4 is arranged above the frame, and the sowing part 4 is located in the wind shield 13. The control part 2 controls the conveying part 3 arranged on the frame 1 to convey the seedling tray to the bottom of the sowing part 4, receive the seeds discharged by the sowing part 4, thereby completing the sowing, and the conveying part 3 then conveys the seeding seedling tray to the next operation link.

[0047] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. The automatic precision seeding device includes a frame, a conveying part, a sowing part, and a control part. The conveying part is arranged under the frame and passes through the entire frame along the conveying direction. The sowing part is arranged in the middle of the upper part of the frame. The control part is arranged at one end above the frame. The control part is used to control the conveying part to transport the seedling tray to the bottom of the sowing part, and then the control part controls the sowing part to complete the operation procedures of filling, collecting, resetting and discharging seeds, thereby realizing automatic sowing of the sowing tray. The control part transports the completely sown seedling tray to the next operation link, and so on. The cycle is repeated to realize the assembly line operation, which is characterized in that The sowing part also includes a sowing bracket, a hole-dropping mechanism, a rotating mechanism, a reciprocating motion mechanism, and a magnetic return type seeding device. The magnetic return type seeding device is arranged on the reciprocating motion mechanism, the reciprocating motion mechanism is arranged on the rotating mechanism, the rotating mechanism and the hole-dropping mechanism are respectively arranged on the sowing bracket, the control part controls the reciprocating motion mechanism to drive the magnetic return type seeding device to perform reciprocating translation, the control part controls the rotating mechanism to drive the reciprocating motion mechanism together with the magnetic return type seeding device to perform forward and reverse rotation motion, the sown seeds are placed in the magnetic return type seeding device, and under the joint action of the reciprocating motion mechanism and the rotating mechanism After the seed filling, seed collection and reset are completed, the control part controls the hole seed dropping mechanism to push the magnetic return type seeding device to discharge the seeds. After the control part cancels the push of the hole seed dropping mechanism on the magnetic return type seeding device, the magnetic return type seeding device returns to the state of waiting for seed filling and completes seed filling again. The seed filling and seeding work are completed in this cycle. The control part controls the conveying part arranged under the frame to convey the seedling tray to the bottom of the sowing part, receives the seeds discharged by the sowing part, thereby completing the sowing, and the conveying part then conveys the seeding tray to the next operation link; The rotating mechanism includes a rotating motor, a rotating motor seat, a rotating motor mounting platform, a coupling, a rotating bearing seat, a T-shaped connector, and a rotating bracket, wherein the rotating bracket is a hollow frame formed by fixedly connecting profiles, and T-shaped connectors are fixedly provided at both ends of the rotating bracket, and the rotation axes of the T-shaped connectors at both ends are coaxial, and the T-shaped connectors at both ends can be rotatably provided on the sowing bracket through rotating bearing seats, and the rotating motor is provided on the rotating motor mounting platform through the rotating motor seat, and the power output shaft of the rotating motor is connected to the T-shaped connector at one end through a coupling for transmission, and the T-shaped connector at the other end and the corresponding rotating bearing seat are located in the U-shaped groove of the U-shaped base, and the control integrated system controls the rotating motor to drive the rotating bracket to perform forward and reverse rotation motion, and the control integrated system adjusts the rotating bracket according to the feedback signal of the horizontal sensor and thereby adjusts the horizontal state of the seeding bracket; The reciprocating motion mechanism includes a seeding limit device, a seeding bracket, a reciprocating guide rail, a seeding bracket connecting piece, a reciprocating slider, a reciprocating push rod, a push rod guide block, a fisheye bearing, a synchronous shaft, a crank connecting rod, a crank, a reciprocating motor mounting platform, a reciprocating motor seat, and a reciprocating motor, wherein the reciprocating guide rails are fixedly arranged in parallel on both sides above the rotating bracket, and a plurality of reciprocating sliders are respectively arranged on the reciprocating guide rails on both sides. The reciprocating sliders can slide on the reciprocating guide rails in a direction parallel to the guide rails, and the seeding bracket connecting piece is fixedly arranged on the reciprocating slider, and the seeding bracket is fixedly arranged on the seeding bracket connecting piece. The seeding bracket is provided with a horizontal sensor, and the seeding bracket is a hollow frame formed by fixed connection of profiles. The seeding bracket is parallel to the rotating bracket, and the seeding bracket is provided with a seeding limit device. One end of the reciprocating guide rails on both sides is respectively fixed with a push rod guide block. The guiding direction of the push rod guide block is consistent with the sliding direction of the reciprocating slider. The reciprocating push rod is slidingly arranged on the push rod guide block. One end of the reciprocating push rods on both sides is fixedly connected to the reciprocating slider or the seeding bracket connector. The other end of the reciprocating push rods on both sides is respectively provided with a fisheye bearing, and the fisheye bearings on both sides are connected through a synchronous shaft. The reciprocating motor is arranged on the reciprocating motor mounting platform through the reciprocating motor seat. The reciprocating motor mounting platform is fixedly set on the rotating bracket. A crank is provided on the output shaft of the reciprocating motor, one end of the crank connecting rod is connected to the synchronous shaft, and the other end of the crank connecting rod is connected to the crank. The control integrated system controls the rotation of the reciprocating motor, and the reciprocating motor drives the synchronous shaft to perform reciprocating motion through the crank and the crank connecting rod. The reciprocating push rods on both sides follow the synchronous shaft to perform reciprocating motion, and then the reciprocating push rod drives the reciprocating slider together with the seeding bracket connector and the seeding bracket to perform reciprocating motion.

2. The automatic precision seeding device according to claim 1, characterized in that: The frame also includes a frame main body bracket, universal wheels, and a windshield, wherein the frame main body bracket is spliced ​​from aluminum profiles, the aluminum profiles are connected by angle keys and L keys, the universal wheels are arranged below the frame main body bracket, and a windshield is arranged around the frame main body bracket above. The universal wheels include lockable universal wheels and non-locking universal wheels, and the windshield is a transparent acrylic plate; the sowing bracket is spliced ​​from aluminum profiles, the aluminum profiles are connected by angle keys or L keys, and the sowing bracket is arranged above the frame.

3. The automatic precision seeding device according to claim 1, characterized in that: The control part is mainly composed of a control box, a control base, a control box cover, and a control integrated system, wherein the control base is arranged on the frame, the control box is arranged on the control base, the control box cover is arranged on one side of the control box, the control integrated system is arranged inside the control box, and the control part is located outside the wind shield. The control part is used for initializing the sowing part, controlling the start and stop of the sowing part, setting the motor speed, and setting relevant parameters of the seeding device.

4. The automatic precision seeding device according to claim 1, characterized in that: The conveying part includes a conveying belt, a smooth bar, a smooth bar bracket, a conveying driven wheel, a conveying driven shaft, a conveying bearing seat, a conveying motor, a conveying motor seat, a conveying motor sprocket, a conveying chain, a conveying slave sprocket, a conveying driving shaft, a conveying driving wheel, a conveying support shaft, a conveying support wheel, a photoelectric sensor, and a photoelectric sensor bracket. Among them, the conveying motor is arranged at the bottom of the frame through the conveying motor seat, the conveying motor sprocket is arranged on the power output shaft of the conveying motor, the conveying driving shaft, the conveying driven shaft, and the conveying support shaft are respectively arranged on the frame through the conveying bearing seat, the conveying driving wheel and the conveying slave sprocket are respectively fixed on the conveying driving shaft, the conveying driven shaft is provided with a conveying driven wheel, and the conveying A conveying support wheel is provided on the conveying support shaft, one end of the conveying belt is sleeved on the conveying active wheel, and the other end of the conveying belt is sleeved on the conveying driven wheel. The middle part of the conveying belt is supported on the conveying support wheel, and the smooth strip is adjustable on the inner side of the frame through the smooth strip bracket. The photoelectric sensor is set on the frame through the photoelectric sensor bracket. The conveying motor sprocket and the conveying slave sprocket are driven by the conveying chain, and the conveying slave sprocket drives the conveying active wheel to rotate through the conveying active shaft, thereby driving the circulation operation of the conveying belt. The seedling tray is placed on the conveying belt and runs with the conveying belt. When the conveying belt transports the seedling tray, the smooth strip guides and limits the seedling tray to ensure that the seedling tray runs in a predetermined direction.

5. The automatic precision seeding device according to claim 4, characterized in that: The conveying support shaft is located between the conveying active shaft and the conveying driven shaft, the number of conveying support shafts is ≥1, the conveying driven wheel can rotate freely or be fixedly set on the conveying driven shaft, the conveying support wheel can rotate freely or be fixedly set on the conveying support shaft, the flow strip is located on one side of the conveying belt, the photoelectric sensor is located between the flow strip and the conveying belt, the installation position of the photoelectric sensor along the conveying direction of the seedling tray is adjustable, along the conveying direction of the seedling tray, the photoelectric sensor is the length of a seedling tray away from the conveying intervention end, and the middle part of the conveying belt is guided and supported by the conveying support wheel; by adjusting the position of the flow strip bracket, the center distance of the flow strips on both sides can be adjusted to adapt to seedling trays of different sizes.

6. The automatic precision seeding device according to claim 1, characterized in that: The hole-dropping mechanism also includes an electric push rod, an L-shaped connector, and a U-shaped base, wherein the U-shaped base is fastened to the sowing bracket, the L-shaped connector is fastened to the U-shaped base, and the electric push rod is fastened to the L-shaped connector. Under the action of the control integrated system, the electric push rod can perform telescopic movement.

7. The automatic precision seeding device according to claim 1, characterized in that: The magnetic return seeding device includes a seeding disk, a fixed seed filling plate, a movable seeding plate, a fixed magnetic block, and a movable magnetic block, wherein a seed guard is arranged around the seeding disk to prevent seeds from overflowing during movement, a groove is provided at the bottom of the seeding disk along the vertical direction of the reciprocating motion, and the seeding disk is provided with seed collecting areas at both ends of the groove, a seed filling hole is provided on the fixed seed filling plate, a seed filling hole is provided on the movable seeding plate, a fixed magnetic block is provided on the fixed seed filling plate, and a movable magnetic block is provided on the movable seeding plate. The fixed seed filling plate is fixedly arranged at the bottom of the seeding disk, and the arranged seed filling holes correspond to the groove. The movable seeding plate can be movably arranged below the fixed seed filling plate, and the arrangement direction of the seed filling holes is consistent with the arrangement direction of the seed filling holes.

8. The automatic precision seeding device according to claim 7, characterized in that: When the seeding plate is tilted, the seeds move from one side to the other along the groove. In the seed filling state, the seeding hole and the seed filling hole are in a dislocated state, and the seeds stay in the seed filling hole. At this time, the relative position of the fixed seed filling plate and the movable seed filling plate is flexibly positioned by the suction force between the fixed magnetic block and the movable magnetic block. At this time, the fixed magnetic block and the movable magnetic block are in an overlapping state. When the electric push rod extends the thrust of the movable seeding plate to overcome the suction force of the fixed magnetic block and the movable magnetic block, the movable seeding plate is pushed, and the seeding hole on the movable seeding plate corresponds to the seed filling hole on the fixed seed filling plate. At this time, the seeds staying in the seed filling hole pass through the seeding hole and fall into the seedling tray on the conveyor belt, thereby completing sowing. After sowing is completed, the electric push rod retracts, and the movable seeding plate returns to its initial position under the suction force of the fixed magnetic block and the movable magnetic block, and the next round of seed filling is carried out.

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