Integrated seeding machine for seedling raising plate

Abstract

The utility model discloses an integrated seeding machine for seedling raising trays, which belongs to the technical field of plug seedling raising and comprises a frame, a soil filling unit, a seeding unit and a soil covering unit, the soil filling unit, the seeding unit and the soil covering unit are sequentially arranged on the upper portion of the frame, and a conveying unit is arranged in the middle of the frame and positioned below the soil filling unit, the seeding unit and the soil covering unit. The storage unit is arranged on the moving trolley at the discharging end of the conveying belt. The conveying unit is used for conveying the seedling raising plates, the soil filling unit is used for filling soil and pressing pits, the sowing unit is used for sowing, the soil covering unit is used for covering soil on the surface, the storage unit is used for recycling the sown seedling raising plates, and finally the moving trolley is used for transferring the seedling raising plates. All the units are controlled by a controller, so that automatic seeding operation is realized. The automatic seeding device is compact in structure, high in integration level and high in automation degree, realizes accurate seed filling, stable seed collection and accurate seeding of the seedling raising plate, improves the seed utilization rate, reduces seed waste, further reduces the production cost, and is particularly suitable for batch production.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of plug seedling, and particularly relates to an integrated seedling tray sowing machine. BACKGROUND

[0002] With the rapid development of the vegetable industry, artificial sowing has been unable to meet the needs of people's production and life, and seedling tray sowing technology has emerged as the times require. Seedling tray seedling technology has the advantages of less seed consumption, high survival rate, uniform emergence and the like, and is usually used in combination with manual or automatic sowing machines. Although the existing seedling tray sowing machine can realize automatic sowing and effectively reduce the labor intensity of the staff, the traditional seedling tray sowing machine has the problems of low seed utilization rate and serious waste, resulting in a substantial increase in production cost. Therefore, there is an urgent need for a seedling tray sowing machine that can simplify the seedling process, improve production efficiency and improve seed utilization. SUMMARY

[0003] In order to solve the above problems, the utility model provides an integrated seedling tray sowing machine.

[0004] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0005] An integrated seedling tray sowing machine, comprising a rack, a conveying unit, a soil filling unit, a sowing unit, a soil covering unit and a storage unit, the soil filling unit, the sowing unit and the soil covering unit being sequentially arranged on the upper part of the rack, the conveying unit being arranged on the middle part of the rack and below the soil filling unit, the sowing unit and the soil covering unit, the conveying belt of the conveying unit being capable of conveying the seedling tray sequentially below the soil filling unit, the sowing unit and the soil covering unit, the storage unit being arranged on the moving trolley and at the discharge end of the conveying belt; the soil filling unit is used for filling and pressing the pits of the empty seedling tray, the sowing unit is used for sowing in the pits of the seedling tray, the soil covering unit is used for covering the soil of the sowed seedling tray, and the storage unit is used for recycling the sowed seedling tray; the conveying unit, the soil filling unit, the sowing unit, the soil covering unit and the storage unit are electrically connected with the controller.

[0006] Further, the conveying unit comprises a conveying belt and a transmission assembly for driving the operation of the conveying belt, the conveying belt is arranged through the middle part of the rack, both ends of the conveying belt are matched with the rollers, and the middle part is provided with a plurality of rollers for supporting the upper conveying belt; the transmission assembly comprises a chain and a sprocket driven by a first motor, the rear side of the middle roller of the conveying belt is provided with a tension sleeve, the tension sleeve is connected with the rack through a mounting plate; both sides of the conveying belt are provided with soil retaining plates, and the first motor, the soil retaining plates, the sprocket, the rollers and the tension wheel are connected with the rack.

[0007] Further, a row of limiting wheels is arranged on the upper side of the retaining board along the length direction, for limiting the seedling tray on the conveying belt; the wheel shaft of the limiting wheel and the retaining board are connected with the frame.

[0008] Further, the filling unit comprises a filling box arranged on the frame, a nutrient soil discharging mechanism and a compaction wheel, the filling box is filled with nutrient soil, the nutrient soil discharging mechanism is arranged below the discharge port of the filling box, and a rolling cutter is arranged at the discharge port of the nutrient soil discharging mechanism, for discharging the nutrient soil in the filling box into the empty seedling tray on the conveying belt; the compaction wheel is arranged at the rear side of the filling box, for compacting the nutrient soil in the seedling tray to form a hole for containing seeds; a plurality of rows of pressing heads are arranged on the outer circle of the compaction wheel in a radial direction, for corresponding to the spacing of the seedling tray on the conveying belt.

[0009] Further, the nutrient soil discharging mechanism comprises a second motor, a conveying belt and transmission shafts at both ends of the conveying belt, the second motor drives the transmission shafts through a transmission assembly, the conveying belt is arranged below the discharge port of the filling box, and the conveying belt is driven by the transmission shafts, for conveying the nutrient soil into the empty seedling tray and extruding the nutrient soil; the transmission assembly comprises a synchronous belt and synchronous pulleys at both ends of the synchronous belt, the output end of the second motor is connected with the synchronous pulley at one end of the synchronous belt, and the synchronous pulley at the other end of the synchronous belt is connected with the transmission shafts, the second motor and the transmission shafts are connected with the frame.

[0010] Further, the covering unit comprises a covering box arranged on the frame, a nutrient soil discharging mechanism and a rolling brush, the covering box is filled with nutrient soil, the nutrient soil discharging mechanism is arranged at the discharge port of the covering box, and a rolling cutter is arranged at the discharge port of the nutrient soil discharging mechanism, for discharging the nutrient soil leaked from the covering box into the hole of the seedling tray on the conveying belt; a baffle and a rolling brush driven by a third motor are arranged at the rear side of the covering box in sequence, the rolling brush is used for sweeping the excess nutrient soil on the surface of the seedling tray on the conveying belt; the nutrient soil discharging mechanism has the same structure as the nutrient soil discharging mechanism of the filling unit.

[0011] Further, the seeding unit comprises a seed dropping device and a seeding device below the seed dropping device, the seed dropping device comprises a seed bin for containing seeds and a chute below the seed bin, the bottom side of the seed bin is provided with a discharge plate, the upper end of the discharge plate is rotationally connected with one end of a swing rod, the other end of the swing rod is rotationally connected with the output end of a fourth motor, and the middle part of the swing rod is rotationally connected with a fixed rod on the top of the frame; the fourth motor is used for driving the swing rod to swing up and down, so as to drive the discharge plate to ascend and descend, so as to open and block the discharge port, the ascending discharge plate is used for discharging the seeds in the seed bin into the chute, the chute is provided with a seed expelling screw driven to rotate by a fifth motor, for discharging the seeds in the chute into the seeding box of the seeding device below.

[0012] Further, the sowing device comprises a sowing box and an isolation plate at the bottom of the sowing box, the isolation plate is arranged in parallel and close to the bottom surface of the sowing box, and the bottom plate of the sowing box and the isolation plate are both provided with through holes; any one end of the sowing box in front or back is connected with a sixth motor through a double-crank rocker for driving the double-crank rocker to realize horizontal longitudinal shaking of the sowing box; the left and right sides of the sowing box are connected with a rectangular frame through springs, the front and rear frames of the rectangular frame can be slidably connected with linear guide rails on the rack, and one side frame of the rectangular frame is connected with a seventh motor through a connecting rod for driving the sowing box to shake transversely.

[0013] The isolation plate is connected with a rack, the rack is engaged with a gear, and the gear is driven by an eighth motor.

[0014] Further, the storage unit comprises a lifting chain, a counterweight plate, a lifting plate and a plurality of fork frames for supporting the seedling trays, the lifting chain is engaged with a chain wheel, the chain wheel is arranged on a driving shaft at the top of the moving trolley, and the driving shaft is driven by a ninth motor; one end of the lifting chain is connected with the counterweight plate, and the other end is connected with the lifting plate, both ends of the counterweight plate are respectively provided with guide wheels, and both sides of the frame of the moving trolley are correspondingly provided with guide grooves matched with the guide wheels; both sides of the lifting plate are slidably connected with guide rods, and both upper and lower ends of the guide rods are fixed to the frame; the fork frames are arranged in multiple rows from top to bottom, and the fork frames are arranged on the side surface of the lifting plate towards the discharge end of the conveying belt.

[0015] Further, the lower part of the storage unit is also provided with a nutrient soil recycling unit connected with the rack, for collecting the nutrient soil falling from the discharge end of the conveying belt and the excess nutrient soil on the surface of the seedling tray; the nutrient soil recycling unit comprises an inclined soil collecting plate and an open-top recycling box, the soil collecting plate extends to the lower part of the storage unit, the bottom of the soil collecting plate is provided with a vibration motor, and the lower end discharge port of the soil collecting plate is arranged above the recycling box; the two sides of the recycling box can be slidably connected with the slide rails at the bottom of the rack, for pulling and placing the recycling box.

[0016] Compared with the prior art, the technical progress achieved by the utility model lies in that:

[0017] The utility model discloses a through arranging filling unit, seeding unit, covering unit and storage unit from front to back on the frame, and arranging the conveying unit that penetrates the frame below, and conveying unit can convey the seedling tray to pass through filling unit and fill the soil and press the pit to it, pass through seeding unit and sow in its pit, pass through covering unit and cover the soil to the seedling tray after sowing, and the frame rear side of the discharge end of conveyer belt places the mobile trolley, and utilizes the storage unit on mobile trolley to be able to recycle the seedling tray after sowing, and the above each unit all controls through controller, and installs multiple sensors on the conveyer belt side frame simultaneously, can induct the seedling tray position on conveyer belt and upload to controller, realizes the automatic sowing operation, the utility model discloses compact structure, the degree of integration is high, has realized the accurate filling of seedling tray, stable seed collection and accurate sowing, has improved seed utilization, has reduced seed waste, and further reduced production cost, especially suitable for batch production. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application, and do not constitute a limitation of the present application.

[0019] In the drawings:

[0020] Figure 1 A structure schematic view of an integrated seedling tray seeding machine provided for the embodiment of the utility model;

[0021] Figure 2 A structure schematic view of the conveying unit in the embodiment of the utility model;

[0022] Figure 3 A Figure 2 A-A sectional view in the

[0023] Figure 4 C-C sectional view in the Figure 2

[0024] I in Figure 5 Figure 2

[0025] Figure 6 A structure schematic view of the filling unit in the embodiment of the utility model;

[0026] Figure 7 A structure schematic view of the covering unit in the embodiment of the utility model;

[0027] Figure 8 A structure schematic view of the seed falling device in the embodiment of the utility model;

[0028] Figure 9 A structure schematic view of the seeding device in the embodiment of the utility model;​​

[0029] Figure 10 It is the structure schematic view of the storage unit in the embodiment of the utility model;

[0030] Figure 11 It is the structure schematic view of the nutrient soil recycling unit in the embodiment of the utility model.

[0031] In the drawing: 100 - rack;200 - mobile trolley;

[0032] 1 - first motor;2 - chain;3 - conveying belt;4 - soil retaining plate;5 - limiting wheel;6 - filling box;7 - linear guide rail;8 - synchronous belt;9 - fourth motor;10 - swing lever;11 - compaction wheel;12 - covering box;13 - partition;14 - large pulley;15 - ninth motor;16 - guide wheel;17 - counterweight plate;18 - lifting plate;19 - fork frame;20 - support;21 - soil collecting plate;22 - universal caster;23 - recycling box;24 - buckle;25 - seed bin;26 - drawer slide rail;27 - fifth motor;28 - seed metering screw;29 - chute;30 - guide rod;31 - corner piece;32 - L-shaped connecting piece;33 - sliding bearing seat;34 - drive shaft;35 - lifting chain;36 - small pulley;37 - shaft coupling;38 - connecting plate;39 - bearing seat;40 - roller;41 - bearing;42 - sprocket;43 - vertical plate;44 - motor fixing plate;45 - mounting plate;46 - seedling tray;47 - flange plate;48 - tension sleeve;49 - steering wheel;50 - T-shaped connecting piece;51 - third motor;52 - double-crank rocker;53 - spring;54 - seeding box;55 - through hole;56 - gear;57 - rack;58 - seventh motor;59 - sixth motor;60 - connecting rod;61 - second motor;62 - double-arm steering wheel steering wheel;63 - rectangular frame;64 - vertical shaft support;65 - support plate;66 - sensor;67 - optical axis;68 - synchronous pulley;69 - wheel shaft;70 - conveying belt;71 - rolling brush;72 - fixed rod;73 - fixing piece. DETAILED DESCRIPTION

[0033] The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the utility model will be described below with reference to the drawings.

[0034] As Figure 1As shown in the figure, the integrated seedling raising tray sowing machine comprises a rack 100, a conveying unit, a soil filling unit, a sowing unit, a soil covering unit and a storage unit, the soil filling unit, the sowing unit, the soil covering unit and the storage unit are sequentially arranged on the rack 100, the conveying unit is arranged at the middle part of the rack and below the soil filling unit, the sowing unit and the soil covering unit, the conveying belt 3 of the conveying unit can convey the seedling raising tray 46 to sequentially pass below the soil filling unit, the sowing unit and the soil covering unit, and the storage unit is arranged on the moving trolley 200 and at the discharging end of the conveying belt 3; the soil filling unit is used for filling soil and pressing pits in the empty seedling raising tray, the sowing unit is used for sowing in the pits of the seedling raising tray, the soil covering unit is used for covering soil in the seedling raising tray after sowing, and the storage unit is used for recycling the seedling raising tray after sowing; the conveying unit, the soil filling unit, the sowing unit, the soil covering unit and the storage unit are electrically connected with a controller (not shown in the figure) to realize automatic control of each unit.

[0035] Meanwhile, a plurality of sensors 66 electrically connected with the controller are arranged on the rack 100 at the side of the conveying belt 3, the sensors 66 adopt infrared sensors, can detect the position of the seedling raising tray on the conveying belt in real time and upload the position information to the controller to control the actions of each unit. The scheme can realize accurate sowing of the seedling raising tray and solve the problems of imperfect mechanical structure and electrical control system and low overall reliability.

[0036] In the specific embodiment of the utility model, as shown in the figure, Figures 2-5 The conveying unit comprises a conveying belt 3 and a transmission assembly for driving the operation of the conveying belt 3, the conveying belt 3 is arranged through the middle part of the rack 100, the two ends of the conveying belt 3 are matched with the rollers, a plurality of rollers 40 are arranged in parallel at the middle part of the conveying belt 3 for supporting the conveying belt 3 above, the transmission assembly comprises a chain 2 and a sprocket driven by a first motor 1, a tension sleeve 48 is arranged at the rear side of the middle roller 40 of the conveying belt 3, the tension sleeve 48 is connected with the rack 100 through a mounting plate 45 for adjusting the tension of the conveying belt, and the first motor 1, the soil retaining plate 4, the sprocket, the roller 40 and the tension pulley are all connected with the rack 100. The conveying belt is a common V belt, the rollers at the bottom of the conveying belt are two groups, the mounting shafts of the two groups of rollers are connected through a shaft coupling 37, and the two groups of rollers are arranged in a V shape to limit the conveying belt; the end part of the roller is connected with the mounting shaft through a flange plate 47 during assembly, and the end part of the mounting shaft is matched with a bearing seat 39 on the rack through a bearing 41; the end bearing seat of the roller at the two ends of the conveying belt is connected with the rack through a sheet metal connecting plate 38.

[0037] In the specific design, the first motor 1 is an 86-stepper motor, fixed to the frame 100 via a motor mounting plate 44. The sprockets at the roller ends of the conveyor belt 3 mesh with the chain 2. Simultaneously, the 86-stepper motor is installed below the conveyor belt 3, with its output end coaxially fixed to the drive sprocket. Symmetrical intermediate sprockets are arranged on both sides above the drive sprocket, allowing the chain to be concave and mesh with multiple sprockets. A tensioning wheel is installed near the discharge end of the conveyor belt to adjust the chain tension.

[0038] Further optimize the above structure, such as Figure 1 , 3 As shown in Figure 4, a row of limiting wheels 5 is provided above the soil retaining plate 4 along its length to limit the seedling trays 46 on the conveyor belt 3, preventing the seedling trays from shifting during the operation of the conveyor belt; the axles of the limiting wheels 5 are vertically arranged on the upright plate 43, and both the upright plate 43 and the soil retaining plate 4 are connected to the frame 100. In specific manufacturing, the soil retaining plate is made of fiberglass material. The soil retaining plate can prevent the nutrient soil spilled from the filling box and the covering box from entering the equipment and affecting the performance of the equipment, and the limiting wheels installed above allow the seedling trays to travel along a predetermined route.

[0039] In specific embodiments of this utility model, such as Figure 1 , 6As shown, the filling unit comprises a filling box 6 provided on the frame 100, filled with nutrient soil, a nutrient soil discharging mechanism provided below the discharge port of the filling box 6 and provided with a rolling cutter (not shown in the figure) at the discharge port, for discharging the nutrient soil in the filling box 6 into the empty seedling tray 46 on the conveying belt 3, and a compaction wheel 11 provided at the rear side of the filling box 6, for compacting the nutrient soil in the seedling tray 46 to form a seed-containing hole. The compaction wheel 11 is provided with a plurality of rows of compaction heads arranged at intervals on the outer circle, for corresponding to the spacing of the seedling trays on the conveying belt 3. The nutrient soil discharging mechanism comprises a second motor 61, a conveying belt 70 and transmission shafts at both ends of the conveying belt 70. The second motor 61 drives the transmission shafts through a transmission assembly. The conveying belt 70 is provided below the discharge port of the filling box 6 and is driven by the transmission shafts, for conveying the nutrient soil into the empty seedling tray and extruding the nutrient soil. The transmission assembly comprises a synchronous belt 8 and synchronous belt pulleys 68 at both ends of the synchronous belt 8. The output end of the second motor 61 is connected to the synchronous belt pulley 68 at one end of the synchronous belt 8. The synchronous belt pulley 68 at the other end of the synchronous belt 8 is connected to the transmission shaft. The second motor 61 and the transmission shaft are both connected to the frame 100. In specific implementation, the second motor is a 42-step motor and is fixed on the side panel of the filling box. One end of the conveying belt 70 is a transmission shaft and the other end is a light shaft 67. The 42-step motor drives the conveying belt to discharge the nutrient soil leaked from the filling box into the seedling tray. The 42-step motor can adjust the rotating speed of the conveying belt 70 to control the amount of soil falling. The conveying belt can also smooth the surface of the seedling tray during the movement of the seedling tray along the conveying belt. When the seedling tray moves below the compaction wheel, the compaction heads on the compaction wheel can extrude the nutrient soil in the seedling tray downward, so as to compact the nutrient soil to form a seed-containing hole.

[0040] In the specific embodiment of the present application, as shown in Figure 1 、 7 The covering unit comprises a covering box 12 provided on the frame 100, filled with nutrient soil, a nutrient soil discharging mechanism provided at the discharge port of the covering box 12 and provided with a rolling cutter, for discharging the nutrient soil leaked from the covering box 12 into the hole of the seedling tray on the conveying belt 3, and a rolling brush 71 driven by a third motor 51 and provided at the rear side of the covering box 12. The rolling brush 71 is used for sweeping the excess nutrient soil on the surface of the seedling tray 46 on the conveying belt 3. In specific implementation, the nutrient soil discharging mechanism of the covering unit has the same structure as the nutrient soil discharging mechanism of the filling unit, and can also cover the nutrient soil leaked from the covering box into the seedling tray. When the seedling tray moves below the rolling brush along the conveying belt, the rolling brush can sweep the excess nutrient soil on the surface of the seedling tray. Similarly, the third motor is a 42-step motor and is fixed on the side panel of the covering box. The 42-step motor drives the conveying belt to discharge the nutrient soil leaked from the covering box into the hole of the seedling tray.

[0041] As a preferred structure, the inner cavities of the filling soil tank 6 and the covering soil tank 12 are funnel-shaped with the upper part being larger and the lower part being smaller, and the inner wall of one side of the inner cavities is inclinedly arranged, and the inner walls of the other three sides are vertically arranged. With the structure, the nutrient soil can conveniently fall from the discharge port under the action of gravity.

[0042] In the specific embodiments of the utility model, as shown in Figure 1 、 8 , the seeding unit comprises a seed dropping device and a seeding device below the seed dropping device, the seed dropping device comprises a seed bin 25 for containing seeds and a chute 29 below the seed bin 25, the bottom side of the seed bin 25 is provided with a discharge plate (the angle is not shown in the figure), the upper end of the discharge plate is rotationally connected with one end of a swing rod 10, the other end of the swing rod 10 is rotationally connected with the output end of a fourth motor 9, the middle part of the swing rod 10 is rotationally matched with a fixed rod 72 at the top of a rack 100; the fourth motor 9 is used for driving the swing rod 10 to swing up and down, thereby driving the discharge plate to lift and descend, so as to open and block the discharge port, when the discharge plate rises, the discharge port of the seed bin 25 is opened, and the seeds can be discharged and fall into the chute 29 below, the seed dropping screw rod 28 in the chute 29 is driven to rotate by a fifth motor 27, and the seeds in the chute can be discharged from one end of the outlet at the bottom of the chute to the seeding box 54 of the seeding device below. In specific manufacturing, the fourth motor 9 adopts a double-arm rudder, the rudder disc 62 of the double-arm rudder is rotationally connected with the tail end of the swing rod 10, the double-arm rudder drives the swing rod to swing left and right around the fixed rod, so as to realize the opening and blocking of the discharge port of the seed bin; meanwhile, the fifth motor 27 and the chute are arranged on a support plate 65, and the end part of the seed dropping screw rod 28 is connected with the support plate through a vertical shaft support 64.

[0043] As shown in Figure 1 、 9As shown, the sowing device comprises a sowing box 54 and an isolation plate (angle not shown in the figure) at the bottom of the sowing box 54, the isolation plate is arranged in parallel and close to the bottom surface of the sowing box 54, and the bottom plate of the sowing box 54 and the isolation plate are both provided with through holes 55; any end of the sowing box 54 at the front or the back is connected with the sixth motor 59 through a double-crank rocker 52, for driving the double-crank rocker 52 to realize horizontal longitudinal shaking of the sowing box 54; the left and right sides of the sowing box 54 are connected with a rectangular frame 63 through springs 31, the front and back frames of the rectangular frame 63 can be slidably connected with the linear guide rails 7 on the rack 100, and one side frame of the rectangular frame 63 is connected with the seventh motor 58 through a connecting rod 60, for driving the sowing box 54 to shake transversely; the isolation plate is connected with a rack 57, the rack 57 is engaged with a gear 56, and the gear 56 is driven by an eighth motor. Among them, the sixth motor 59 adopts a 42-step motor, the 42-step motor drives the rotation of the rotating shaft through synchronous belt transmission, the rotating shaft drives the two sides of the double-crank rocker to swing, and then drives the sowing box to shake horizontally and longitudinally. The seventh motor 58 adopts a single-arm rudder, which can drive the rectangular frame and the sowing box to shake transversely through the connecting rod, and the spring can increase the shaking amplitude of the sowing box. The through holes of the sowing box and the isolation plate can accommodate 3-5 seeds at the same time; the through holes on the isolation plate can correspond to the seedling trays below, when the through holes of the sowing box and the isolation plate are aligned, the seeds can fall into the holes of the seedling trays below through the through holes. The specific sowing process is as follows:

[0044] During the shaking process of the sowing box, the falling seeds can be uniformly laid on the bottom of the sowing box, and the through holes on the bottom plate of the sowing box and the through holes on the isolation plate are kept staggered during the shaking process. When the sowing box stops shaking, the eighth motor is started to drive the gear to rotate, the gear drives the rack to drive the isolation plate to move longitudinally, so that the through holes of the sowing box and the isolation plate are aligned, and the seeds fall into the holes of the seedling trays below through the through holes.

[0045] In the specific embodiment of the utility model, such as Figure 1 , 10As shown, the storage unit includes lifting chain 35, counterweight plate 17, lifting plate 18 and several fork jibs 19 for supporting seedling tray, the lifting chain 35 is engaged with sprocket, the sprocket is arranged on the driving shaft 34 on the top of the moving trolley 200, the driving shaft 34 is driven by the ninth motor 15; one end of the lifting chain 35 is connected with the counterweight plate 17, the other end is connected with the lifting plate 18, both ends of the counterweight plate 17 are respectively provided with guide wheels 16, both sides of the frame of the moving trolley 200 are correspondingly provided with guide grooves matched with the guide wheels 16; both sides of the lifting plate 18 are in sliding fit with guide rods 30, both upper and lower ends of the guide rods 30 are respectively fixed on the frame; the fork jibs 19 are arranged in multiple rows from top to bottom, and the fork jibs 19 are arranged on the side surface of the lifting plate 18 towards the discharge end of the conveying belt 3. Among them, the ninth motor 15 adopts 57 stepping motor, the output end of the 57 stepping motor is coaxially fixed with the small pulley 36, the driving shaft 34 is coaxially fixed with the large pulley 14, the small pulley 36 is connected with the large pulley 14 through the synchronous belt, and the lifting chain 35 is arranged on both ends of the driving shaft 34 in parallel. When applied, the 57 stepping motor drives the driving shaft 34 and the sprocket at both ends thereof to rotate through the synchronous belt transmission, the lifting precision of the lifting plate can be controlled, and the height of each row of fork jibs is matched with the discharge end of the conveying belt. When there is no seedling tray on the fork jib of the lifting plate, the counterweight plate is lowered under the gravity to drive the lifting plate to rise, when the number of seedling trays on the lifting plate increases, the weight of the lifting plate increases to offset part of the weight of the counterweight plate, and the accurate descending of the lifting plate is realized by cooperating with the 57 stepping motor.

[0046] In the specific embodiments of the present application, as shown in Figure 1 、 11 As shown, the lower part of the storage unit is also provided with a nutrient soil recycling unit connected with the rack, for collecting the nutrient soil falling from the discharge end of the conveying belt 3 and the excess nutrient soil on the surface 46 of the seedling tray; the nutrient soil recycling unit includes an inclined soil collecting plate 21 and an open-top recycling box 23, the soil collecting plate 21 extends to the lower part of the storage unit, the bottom of the soil collecting plate 21 is provided with a vibration motor, and the lower end discharge port of the soil collecting plate 21 is arranged above the recycling box 23. The nutrient soil falling from the discharge end of the conveying belt will fall on the soil collecting plate, and the nutrient soil in the soil collecting plate will enter the recycling box under the driving of the vibration motor.

[0047] In specific implementation, the bottom of the lifting plate is provided with a support made of elastic material, which can play a buffering role when the lifting plate contacts the bottom plate of the moving trolley when descending to the bottom. The two sides of the recycling box 23 are connected with the drawer slide rail 26 through the fixing piece 73, the drawer slide rail 26 can be slidably connected with the bottom frame of the rack, and the drawer slide rail 26 facilitates the pulling and placing of the recycling box 23. Meanwhile, the bottom frame of the rack is connected with the moving trolley 200 through the buckle 24, and the rack and the moving trolley are connected together by the buckle when the seedling tray is stored. When the seedling tray on the lifting plate is fully loaded, the moving trolley and the rack can be separated by opening the buckle, so that the moving trolley can be moved to the seedling area, and the seedling tray on the rack can be taken down.

[0048] In specific implementation, the rack 100 and the moving trolley 200 are both made of 2020 aluminum profiles, and stainless steel corner pieces 31, L-shaped connecting pieces 32 and T-shaped connecting pieces 50 are used at the connecting positions of the frames of the rack and the moving trolley, so as to ensure the firmness and stability of the equipment and adapt the equipment to the outdoor working environment. Meanwhile, four Forma wheels are installed at the bottom of the rack, the working plane of the equipment can be kept horizontal by adjusting the Forma wheels, and the Forma wheels have good load-bearing stability and can adapt to the weight of the equipment. In addition, the universal casters 22 at the bottom of the moving trolley 200 can be self-locked and fixed after being connected with the rack, so as to facilitate the storage of the seedling tray.

[0049] The specific application engineering of the utility model is as follows:

[0050] The seedling trays are placed on the conveying belt and move with the conveying belt, the positions of the seedling trays are monitored by the infrared sensor and then uploaded to the controller, and the actions of the conveying belt, the soil filling unit, the seeding unit, the soil covering unit, the storage unit and the nutrient soil recycling unit are controlled by the controller. The seedling tray is filled with soil by the conveying belt when the seedling tray moves to the position below the soil filling unit. Then the seedling tray moves to the position below the seeding unit, a certain amount of seeds are first dropped into the seeding box by the seed dropping device, and the seeds are shaken and then dropped into the hole of the seedling tray by the shaking of the seeding box and the isolation plate of the seeding device. Then the seedling tray moves to the position below the soil covering unit, and the seeds in the hole of the seedling tray are covered with nutrient soil by the conveying belt. The seedling tray after seeding is stored by the storage unit at the discharging end of the conveying belt, and the nutrient soil scattered on the surface of the conveying belt is collected by the nutrient soil recycling unit at the discharging end of the conveying belt.

[0051] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the scope of protection of the utility model claims.

Claims

1. An integrated seedling tray seeder, characterized by: The device comprises a frame, a conveying unit, a filling unit, a seeding unit, a covering unit and a receiving unit, the filling unit, the seeding unit and the covering unit are sequentially arranged on the upper part of the frame, the conveying unit is arranged on the middle part of the frame and below the filling unit, the seeding unit and the covering unit, the conveying belt of the conveying unit can convey the seedling tray to sequentially pass below the filling unit, the seeding unit and the covering unit, the receiving unit is arranged on the moving trolley and at the discharge end of the conveying belt; the filling unit is used for filling and pressing the seedling tray, the seeding unit is used for seeding in the pit of the seedling tray, the covering unit is used for covering the seedling tray after seeding, and the receiving unit is used for recycling the seedling tray after seeding; the conveying unit, the filling unit, the seeding unit, the covering unit and the receiving unit are electrically connected with the controller.

2. The integrated seedling tray seeder of claim 1, wherein: The conveying unit comprises a conveying belt and a transmission assembly for driving the conveying belt, the conveying belt is arranged through the middle part of the frame, both ends of the conveying belt are matched with the rollers, and the middle part is provided with a plurality of rollers for supporting the upper conveying belt; the transmission assembly comprises a chain and a sprocket driven by a first motor, the rear side of the middle roller of the conveying belt is provided with a tension sleeve, the tension sleeve is connected with the frame through a mounting plate; both sides of the conveying belt are provided with soil retaining plates, and the first motor, the soil retaining plates, the sprocket, the roller and the tension wheel are connected with the frame.

3. The integrated seedling tray seeder of claim 2, wherein: A row of limiting wheels is arranged on the upper part of the soil retaining plate along the length direction of the soil retaining plate, for limiting the seedling tray on the conveying belt; the wheel shaft of the limiting wheel and the soil retaining plate are connected with the frame.

4. The integrated seedling tray seeder of claim 1, wherein: The filling unit comprises a filling box arranged on the frame, a nutrient soil discharge mechanism and a compaction wheel, the filling box is filled with nutrient soil, the nutrient soil discharge mechanism is arranged below the discharge port of the filling box, and the discharge port of the nutrient soil discharge mechanism is provided with a hob, for discharging the nutrient soil in the filling box to the empty seedling tray on the conveying belt; the compaction wheel is arranged on the rear side of the filling box, for pressing the nutrient soil in the seedling tray to form a seed containing pit; a plurality of rows of pressing heads are arranged on the outer circle of the compaction wheel, and the pressing heads are arranged at intervals in the radial direction, for corresponding to the distance between the seedling trays on the conveying belt.

5. The integrated seedling tray seeder of claim 4, wherein: The nutrient soil discharge mechanism comprises a second motor, a conveying belt and transmission shafts at both ends of the conveying belt, the second motor drives the transmission shafts through a belt transmission assembly, the conveying belt is arranged below the discharge port of the filling box, and the conveying belt is driven by the transmission shafts, for conveying the nutrient soil to the empty seedling tray and extruding the nutrient soil; the transmission assembly comprises a synchronous belt and synchronous belt pulleys at both ends of the synchronous belt, the output end of the second motor is connected with the synchronous belt pulley at one end of the synchronous belt, the synchronous belt pulley at the other end of the synchronous belt is connected with the transmission shaft, and the second motor and the transmission shaft are connected with the frame.

6. The integrated plug seedling tray seeder of claim 5, wherein: The soil covering unit comprises a soil covering box arranged on the frame, a nutrient soil discharging mechanism and a rolling brush, the soil covering box is filled with nutrient soil, the nutrient soil discharging mechanism is arranged at the discharging port of the soil covering box and is provided with a rolling cutter at the discharging port, and is used for discharging the nutrient soil leaked from the soil covering box to the pits of the seedling trays on the conveying belt; the rear side of the soil covering box is sequentially provided with a partition plate and a rolling brush driven by a third motor, and the rolling brush is used for sweeping the excessive nutrient soil on the surface of the seedling trays on the conveying belt; the nutrient soil discharging mechanism has the same structure as the nutrient soil discharging mechanism of the soil filling unit.

7. The integrated seedling tray seeder of claim 1, wherein: The seeding unit comprises a seed dropping device and a seeding device below the seed dropping device, the seed dropping device comprises a seed bin for containing seeds and a chute below the seed bin, a discharging plate is arranged at the bottom side of the seed bin, the upper end of the discharging plate is rotationally connected with one end of a swing rod, the other end of the swing rod is rotationally connected with the output end of a fourth motor, and the middle part of the swing rod is rotationally connected with a fixed rod at the top of the frame; the fourth motor is used for driving the swing rod to swing up and down, thereby driving the discharging plate to ascend and descend to open and block the discharging port, the ascending discharging plate is used for discharging the seeds in the seed bin into the chute, and the chute is provided with a seed discharging screw rod driven by a fifth motor, which is used for discharging the seeds in the chute into the seeding box of the seeding device below.

8. The integrated seedling tray seeder of claim 7, wherein: The seeding device comprises a seeding box and an isolation plate at the bottom of the seeding box, the isolation plate is arranged in parallel and close to the bottom surface of the seeding box, and the bottom plate of the seeding box and the isolation plate are both provided with through holes; any end of the seeding box is connected with a sixth motor through a double-crank rocker, which is used for driving the double-crank rocker to realize the horizontal and longitudinal shaking of the seeding box; the left and right sides of the seeding box are connected with a rectangular frame through springs, the front and rear frames of the rectangular frame can be slidably connected with the linear guide rails on the frame, one side frame of the rectangular frame is connected with a seventh motor through a connecting rod, which is used for driving the horizontal shaking of the seeding box; The isolation plate is connected with a rack, the rack is engaged with a gear, and the gear is driven by an eighth motor.

9. The integrated seedling tray seeder of claim 1, wherein: The storage unit comprises lifting chains, counterweight plates, a lifting plate and a plurality of fork frames for supporting seedling trays, the lifting chains are engaged with sprockets, the sprockets are arranged on the driving shaft at the top of the moving trolley, and the driving shaft is driven by a ninth motor; one end of the lifting chain is connected with a counterweight plate, the other end is connected with a lifting plate, both ends of the counterweight plate are respectively provided with guide wheels, and the two sides of the frame of the moving trolley are correspondingly provided with guide grooves matched with the guide wheels; the two sides of the lifting plate are slidably connected with guide rods, and both ends of the guide rods are fixed to the frame; the fork frames are arranged in multiple rows from top to bottom, and the fork frames arranged on the side surface of the lifting plate face the discharging end of the conveying belt.

10. The integrated plug seedling tray seeder according to any one of claims 1-9, characterized in that: The lower side of the storage unit is further provided with a nutrient soil recycling unit connected with the frame, which is used for collecting the nutrient soil falling from the discharging end of the conveying belt and the excessive nutrient soil on the surface of the seedling trays; the nutrient soil recycling unit comprises an inclined soil collecting plate and an open-top recycling box, the soil collecting plate extends to the lower side of the storage unit, the bottom of the soil collecting plate is provided with a vibration motor, and the discharging port at the low end of the soil collecting plate is arranged above the recycling box.

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