An automatic seeding and filling device for tobacco floating seedling cultivation

Abstract

This invention discloses an automatic sowing and filling device for floating tobacco seedling cultivation, comprising a base plate, a conveyor belt, a substrate treatment mechanism, a vibrating disc mechanism, and a sowing treatment mechanism. The substrate treatment mechanism is located on one side of the top of the base plate and is used for rapid mixing of the substrate and preliminary substrate covering of the seedling trays. The vibrating disc mechanism is located in the middle of the top of the base plate and is used for automatic vibrating of the seedling trays after preliminary substrate covering. The sowing treatment mechanism is located on the other side of the top of the base plate and is used for automatic hole pressing, sowing, re-covering with substrate, and tray scraping of the seedling trays after vibrating. The conveyor belt is positioned between the base plate and the substrate treatment mechanism, vibrating disc mechanism, and sowing treatment mechanism to transport the seedling trays to complete the corresponding operations. This invention features a high degree of automation, short substrate mixing and vibrating disc operation time, good efficiency, reduced requirements for manual skill and effective cooperation, and improved survival rate of floating tobacco seedlings.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco floating seedling auxiliary equipment, and particularly relates to an automatic seeding and filling device for tobacco floating seedling. BACKGROUND

[0002] The tobacco floating seedling technology is an advanced seedling raising technology widely used in the tobacco planting and production in China. The floating seedling is to use the polystyrene foam plastic to make a seedling tray, to put the substrate in the holes of the seedling tray, to sow the seeds in the substrate, and then to float the seedling tray in the seedling pool filled with nutrient solution to complete the whole seedling process.

[0003] In the above seeding and filling process, the substrate needs to be mixed uniformly, used immediately after mixing, and not stored for a long time. After filling, the seedling tray needs to be vibrated to ensure that the substrate in each hole is uniformly filled, moderately loose and tight. The existing seeding and filling device has low automation, and the time required in the substrate mixing and vibration process is long, which easily affects the timeliness and requires high proficiency and effective cooperation, thereby affecting the survival rate of the tobacco floating seedling. SUMMARY

[0004] The present application aims to overcome the defects of the prior art, and provides an automatic seeding and filling device for tobacco floating seedling, so as to solve the problems of low automation of the seeding and filling device in the prior art, long time required in the substrate mixing and vibration process, easy influence on the timeliness, high requirement for proficiency and effective cooperation, and influence on the survival rate of the tobacco floating seedling.

[0005] To solve the above technical problems, the present application is implemented by using the following scheme:

[0006] The present application provides an automatic seeding and filling device for tobacco floating seedling, which comprises a bottom plate, a conveyor belt, a substrate processing mechanism, a vibration tray mechanism and a seeding processing mechanism.

[0007] The substrate processing mechanism is arranged at one side of the top end of the bottom plate and is used for rapidly stirring the substrate and preliminarily covering the substrate on the seedling tray. The substrate processing mechanism comprises a mixing tank fixedly connected to one side of the top end of the bottom plate. A pretreatment tank is fixedly arranged at the top end of the mixing tank. A stirring assembly is arranged in the mixing tank and the pretreatment tank. A scraper assembly is arranged on the surface of the stirring assembly. An initial substrate covering assembly is arranged at the bottom end of the mixing tank.

[0008] The vibration tray mechanism is arranged at the middle of the top end of the bottom plate and is used for automatically vibrating the seedling tray after the preliminary substrate covering. The vibration tray mechanism comprises a lifting assembly arranged at the top end of the bottom plate. A support assembly is arranged at one side of the lifting assembly. A one-way limiting assembly is arranged on the surface of the support assembly. A trigger assembly is arranged between the one-way limiting assembly and the lifting assembly.

[0009] The seeding treatment mechanism is arranged on the other side of the top end of the bottom plate, and is used for automatically pressing holes, seeding, re-covering the base and scraping the tray after the tray operation.

[0010] Two conveying belts are arranged between the bottom plate, the substrate treatment mechanism, the tray mechanism and the seeding treatment mechanism, and are used for conveying the seedling trays to complete corresponding operations.

[0011] Further, the stirring assembly comprises a first motor installed at the bottom of the pretreatment tank, and stirring rods are rotationally connected in the pretreatment tank and the mixing tank. The bottom end of the upper stirring rod penetrates out of the mixing tank. The output shaft of the first motor and the surface of the upper stirring rod are fixedly connected with bevel gears. The two bevel gears are meshingly connected. The top end of the lower stirring rod penetrates out of the mixing tank. A one-way bearing is arranged between the two stirring rods. The outer ring body and the inner ring body of the one-way bearing are respectively connected with one of the stirring rods. The surface of the stirring rod is hingedly connected with a first hinge rod. The other end of the first hinge rod is hingedly connected with a second hinge rod. The other end of the second hinge rod is slidingly connected with the stirring rod. The inner top walls of the mixing tank and the pretreatment tank are fixedly connected with guide rings. The surface of the guide ring is provided with a corrugated groove. The inner wall of the corrugated groove is slidingly connected with a sliding rod. The other end of the sliding rod penetrates out of the corrugated groove and is provided with a connecting rod. The other end of the connecting rod is slidingly connected with the second hinge rod. The surface of the stirring rod is provided with a sliding groove. The inner wall of the sliding groove is slidingly connected with a sliding block. The other end of the sliding block penetrates out of the sliding groove and is hingedly connected with the other end of the second hinge rod.

[0012] Further, the scraper assembly comprises a scraper frame fixedly connected to the surface of the stirring rod. One end of the inner wall of the scraper frame is fixedly connected with a first spring. The other end of the first spring is fixedly connected with a scraper wall plate. The other end of the scraper wall plate penetrates out of the scraper frame and is in contact with the tank wall of the mixing tank and the tank wall of the pretreatment tank.

[0013] Further, the initial base covering assembly comprises a mounting frame. A first material shifting roller is rotationally connected to the inner wall of the mounting frame. The other end of the first material shifting roller penetrates out of the mounting frame. A second motor is fixedly connected to the top end of the mounting frame. The output shaft of the second motor and one end of the first material shifting roller are fixedly connected with belt pulleys. A synchronous belt is transmissionally connected between the two belt pulleys. The bottom end of the mixing tank is provided with a collecting hopper. A discharging valve is arranged between the collecting hopper and the mounting frame. The bottom end of the lower stirring rod is provided with a spiral blade. One side of the inner wall of the mounting frame is fixedly connected with a first guide plate.

[0014] Further, the lifting assembly comprises a lifting plate between the two conveying belts, both ends of the lifting plate are fixedly connected with a strip-shaped rod, the top end of the bottom plate is fixedly connected with a third motor, the output shaft of the third motor is fixedly connected with a threaded rod, one of the strip-shaped rods is threadedly connected with the threaded rod, and the top end of the bottom plate is fixedly connected with a limiting rod in sliding connection with the other strip-shaped rod.

[0015] Further, the supporting assembly comprises two vertical plates fixedly installed at the top end of the bottom plate, the opposite sides of the two vertical plates are both provided with an installation slot, the opposite sides of the two vertical plates are both provided with a receiving slot in communication with the installation slot, the inner wall of the receiving slot is movably connected with a supporting plate, the top end of the bottom plate is rotatably connected with a threaded pipe, one end of the threaded pipe is threadedly connected with a lead screw, the other end of the lead screw is fixedly connected with a push-pull rod, the end of the push-pull rod slides into the installation slot and is fixedly connected with the supporting plate, the surface of the threaded pipe is fixedly connected with a gear, the opposite sides of the two vertical plates are both fixedly connected with a second spring, the bottom end of the second spring is fixedly connected with a rack in engagement with the gear, and the opposite sides of the two strip-shaped rods are both fixedly connected with a trigger plate.

[0016] Further, the one-way limiting assembly comprises an L-shaped rod fixedly installed at the top end of the bottom plate, the surface of the threaded pipe is fixedly connected with a ratchet wheel, one side of the L-shaped rod is rotatably connected with a pawl matched with the ratchet wheel, a coil spring is arranged between the pawl and the L-shaped rod, and the top end of the pawl is fixedly connected with a strip-shaped plate.

[0017] Further, the triggering assembly comprises a placing frame arranged at the top end of the bottom plate, the inner wall of the placing frame is provided with a driving air bag, the bottom end of the trigger plate is fixedly connected with a pressing plate, the top end of the bottom plate is fixedly connected with a cylinder, a connecting pipe is arranged between the cylinder and the driving air bag, the inner wall of the cylinder is fixedly connected with a third spring at one end, the other end of the third spring is fixedly connected with a piston rod, and the other end of the piston rod penetrates out of the cylinder and can abut against the strip-shaped plate.

[0018] Further, the seeding treatment mechanism comprises a U-shaped frame fixedly installed at the other side of the top end of the bottom plate, the top end of the U-shaped frame is provided with an adjustable first scraper, the bottom end of the first scraper penetrates into the U-shaped frame, the top end of the U-shaped frame is provided with a first air cylinder, the bottom end of the first air cylinder penetrates the U-shaped frame and is fixedly connected with a press hole plate, the inner top wall of the U-shaped frame is sequentially provided with a seeder and a base re-covering assembly from left to right, the top end of the U-shaped frame is provided with a second air cylinder, the bottom end of the second air cylinder penetrates into the U-shaped frame and is fixedly connected with a second scraper, the inner walls of the U-shaped frame are both provided with a strip-shaped groove, and the inner walls of the strip-shaped grooves are rotatably connected with uniformly distributed guide rollers.

[0019] Further, the re-covering base assembly comprises a covering base frame fixedly connected to the inner top wall of the U-shaped frame, a fourth motor is fixedly connected to the front end of the covering base frame, a second stirring roller is rotatably connected to the inner wall of the covering base frame, one end of the second stirring roller penetrates through the covering base frame and is fixedly connected to the output shaft of the fourth motor, a second guide plate is fixedly connected to the inner wall of the covering base frame, and a feeding pipe is arranged at the top end of the covering base frame and penetrates through the U-shaped frame.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] 1、The substrate treatment mechanism of the present application can mix the substrate materials in the pre-treatment tank in advance, without adding strong agents and water before use, thereby reducing the influence of time efficiency on the substrate, the stirring assembly can mix the substrate in the mixing tank and the pre-treatment tank, and the stirring assembly can move up and down during stirring, thereby improving the stirring effect, the scraper assembly can automatically adhere to the inner wall of the tank, thereby preventing the substrate and other materials from adhering to the tank wall and improving the mixing effect, the pre-treatment tank can realize substrate mixing, the mixing tank can realize timely mixing and stirring of strong agents and water, and the substrate can be mixed immediately before use, thereby effectively improving the time efficiency, reducing the influence of time on the substrate, improving the survival rate of seedlings, and the initial covering base assembly can uniformly and initially cover the base of the cultivation tray, with high automation degree and reduced influence of skill proficiency on the survival rate.

[0022] 2、The vibration tray mechanism of the present application can stably place the seedling tray at a fixed height through cooperation of the lifting assembly and the supporting assembly, the one-way limiting assembly can prevent the supporting assembly from rotating in the reverse direction, thereby increasing the stability of the supporting assembly, and the one-way limiting assembly and the triggering assembly can cooperate with each other to automatically release the one-way limiting assembly through operation of the lifting assembly, the supporting assembly is automatically released, the cultivation tray is automatically subjected to the vibration tray operation under the action of gravity, with high automation degree, reduced labor intensity of the vibration tray, saved vibration tray time, reduced influence of time efficiency, skill proficiency and effective cooperation on the process, and improved survival rate of cultivation.

[0023] 3、The seeding treatment mechanism of the present application can automatically realize hole pressing, seeding and tray scraping operations, save the seeding treatment time, ensure that the cultivation tray can enter the water pool in time, and prevent the substrate from drying and losing water, thereby affecting the emergence rate. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The overall structure schematic diagram of the automatic seeding and filling device for tobacco floating seedling is provided for the embodiment of the present application;

[0025] Figure 2 The structure schematic diagram of the substrate treatment mechanism in the automatic seeding and filling device for tobacco floating seedling is provided for the embodiment of the present application;

[0026] Figure 3 A structure diagram of a stirring assembly and a scraper assembly in an automatic seeding and filling device for tobacco floating seedling provided by the embodiment of the present application is shown in the figure;

[0027] Figure 4 A structure diagram of a stirring assembly and a scraper assembly in an automatic seeding and filling device for tobacco floating seedling provided by the embodiment of the present application is shown in the figure; Figure 3 A zoomed-in view of A in the figure;

[0028] Figure 5 A structure diagram of a stirring assembly and a scraper assembly in an automatic seeding and filling device for tobacco floating seedling provided by the embodiment of the present application is shown in the figure;

[0029] Figure 6 A structure diagram of a stirring assembly and a scraper assembly in an automatic seeding and filling device for tobacco floating seedling provided by the embodiment of the present application is shown in the figure;

[0030] Figure 7 A structure diagram of a stirring assembly and a scraper assembly in an automatic seeding and filling device for tobacco floating seedling provided by the embodiment of the present application is shown in the figure;

[0031] Figure 8 A structure diagram of a stirring assembly and a scraper assembly in an automatic seeding and filling device for tobacco floating seedling provided by the embodiment of the present application is shown in the figure; Figure 7 A zoomed-in view of B in the figure;

[0032] Figure 9 A structure diagram of a stirring assembly and a scraper assembly in an automatic seeding and filling device for tobacco floating seedling provided by the embodiment of the present application is shown in the figure;

[0033] Figure 10 A structure diagram of a stirring assembly and a scraper assembly in an automatic seeding and filling device for tobacco floating seedling provided by the embodiment of the present application is shown in the figure;

[0034] Figure 11 A structure diagram of a stirring assembly and a scraper assembly in an automatic seeding and filling device for tobacco floating seedling provided by the embodiment of the present application is shown in the figure;

[0035] Figure 12 A structure diagram of a stirring assembly and a scraper assembly in an automatic seeding and filling device for tobacco floating seedling provided by the embodiment of the present application is shown in the figure; Figure 10 A zoomed-in view of C in the figure.

[0036] In the figure: 1, bottom plate; 2, conveying belt; 3, substrate processing mechanism; 301, mixing tank; 302, pretreatment tank; 3021, feeding port; 3022, discharge pipe; 3023, valve; 303, stirring assembly; 3031, stirring rod; 3032, first motor; 3033, bevel gear; 3034, one-way bearing; 3035, first articulated rod; 3036, second articulated rod; 3037, guide ring; 3038, corrugated groove; 3039, sliding rod; 30310, connecting rod; 30311, sliding block; 30312, sliding groove; 304, scraper assembly; 3041, scraper frame; 3042, first spring; 3043, scraper wall plate; 305, initial base covering assembly; 3051, mounting frame; 3052, first poking roller; 3053, second motor; 3054, pulley; 3055, synchronous belt; 3056, discharge valve; 3057, collecting hopper; 3058, helical blade; 3059, first guide plate; 4, vibrating plate mechanism; 401, lifting assembly; 4011, third motor; 4012, threaded rod; 4013, lifting plate; 4014, strip-shaped rod; 4015, limiting rod; 402, support assembly; 4021, vertical plate; 4022, trigger plate; 4023, mounting groove; 4024, storage groove; 4025, support plate; 4027, threaded tube; 4028, screw rod; 4029, push-pull rod; 40210, rack; 40211, second spring; 40212, gear; 403, one-way limiting assembly; 4031, ratchet wheel; 4032, L-shaped rod; 4033, pawl; 4034, coil spring; 4035, strip-shaped plate; 404, trigger assembly; 4041, placement frame; 4042, pressing plate; 4043, driving air bag; 4044, cylinder; 4045, third spring; 4046, piston rod; 4047, connecting tube; 5, seeding processing mechanism; 501, U-shaped frame; 502, first scraper; 503, first air cylinder; 504, hole pressing plate; 505, seeder; 506, re-covering base assembly; 5061, base covering frame; 5062, second poking roller; 5063, fourth motor; 5064, second guide plate; 5065, feeding pipe; 507, second air cylinder; 508, second scraper; 509, strip-shaped groove; 510, guide roller. Embodiment

[0037] The application will be further described below with reference to the drawings. The following examples are only used to more clearly illustrate the technical solutions of the application, and cannot be used to limit the protection scope of the application.

[0038] In the description of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood through specific circumstances.

[0039] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation to the application.

[0040] Please refer to Figures 1 to 12The embodiment provides an automatic seeding and filling device for tobacco floating seedling, which is composed of a bottom plate 1, a conveying belt 2, a substrate processing mechanism 3, a vibrating disc mechanism 4 and a seeding processing mechanism 5. Specifically, the top end of the bottom plate 1 is provided with two conveying belts 2; the substrate processing mechanism 3 is arranged at one side of the top end of the bottom plate 1, and is used for rapidly stirring the substrate to realize immediate use; the vibrating disc mechanism 4 is arranged at the middle part of the top end of the bottom plate 1, and is used for vibrating disc operation on the polystyrene seedling disc after preliminary substrate covering; the seeding processing mechanism 5 is arranged at the other end of the bottom plate 1, and is used for seeding on the polystyrene seedling disc; wherein the substrate processing mechanism 3 comprises a mixing tank 301 fixedly connected to one side of the top end of the bottom plate 1, a pretreatment tank 302 fixedly arranged at the top end of the mixing tank 301, a feeding port 3021 arranged at the top of the pretreatment tank 302, a discharge pipe 3022 with a valve 3023 arranged at the bottom of the pretreatment tank 302 and connected with the mixing tank 301, an initial substrate covering assembly 305 arranged at the bottom end of the mixing tank 301, a stirring assembly 303 arranged in the mixing tank 301 and the pretreatment tank 302, and a scraper assembly 304 arranged on the surface of the stirring assembly 303; wherein the vibrating disc mechanism 4 comprises a lifting assembly 401 arranged at the top end of the bottom plate 1, a supporting assembly 402 arranged at one side of the lifting assembly 401, a one-way limiting assembly 403 arranged on the surface of the supporting assembly 402, and a triggering assembly 404 arranged between the one-way limiting assembly 403 and the lifting assembly 401.Put the polystyrene foam cultivation tray on the left side of the conveyor belt 2, and transport the cultivation tray to the bottom of the substrate treatment mechanism 3. The material of the substrate can be placed into the pretreatment tank 302 in advance. The substrate is pre-stirred by the stirring assembly 303 and the scraper assembly 304. After pre-stirring, the substrate is discharged into the mixing tank 301. Before covering, the mixing tank 301 is added with a medicine for strengthening tobacco seedlings, and an appropriate amount of water is added to adjust the dryness of the substrate. After adjustment, the stirring assembly 303 rotates in reverse, and the substrate enters the initial base assembly 305. The initial base assembly 305 is used for substrate covering operation of the cultivation tray. At this time, the slow conveying of the conveyor belt 2 and the slow discharging of the initial base assembly 305 can realize uniform covering. After covering, the left side of the conveyor belt 2 transports the cultivation tray to the vibration tray mechanism 4. When the vibration tray mechanism 4 is located at the middle end of the bottom of the cultivation tray, the conveyor belt 2 is stopped. The lifting assembly 401 lifts the cultivation tray to the appropriate height, and then the lifting assembly 401 returns to the original position. The supporting assembly 402 can position the cultivation tray at a fixed height. The lifting assembly 401 continues to move downward, driving the trigger assembly 404 to operate. The trigger assembly 404 drives the one-way limiting assembly 403 to operate. The supporting assembly 402 automatically operates to release the support and limitation of the cultivation tray. The cultivation tray will fall onto the lifting assembly 401. The cultivation tray after vibration is transported into the seeding treatment mechanism 5 arranged at the top of the other side of the bottom plate 1. The first scraper 502 can preliminarily scrape the substrate on the cultivation tray. When the cultivation tray moves to the bottom of the hole pressing plate 504, the first cylinder 503 is started to drive the hole pressing plate 504 to move downward to press the hole of the cultivation tray. After pressing, the conveyor belt 2 is started to seed the pressed hole by the seeder 505. The cultivation tray is covered with the re-covering base assembly 506. The thickness of the re-covering base is two to three millimeters. The second cylinder 507 and the second scraper 508 are used to scrape the cultivation tray after the second covering of the base. The tray surface must be clean and all the partitions must be discharged to avoid the growth of blue-green algae. After completing the seeding and base covering operation, the cultivation tray is placed in the water pool as soon as possible to avoid dryness and water loss of the substrate, which affects the emergence rate.

[0041] The stirring assembly 303 comprises a first motor 3032 mounted at the bottom of the pretreatment tank 302, the stirring rods 3031 are rotationally connected in the pretreatment tank 302 and the mixing tank 301, the bottom end of the upper stirring rod 3031 penetrates out of the mixing tank 301, the output shaft of the first motor 3032 and the surface of the upper stirring rod 3031 are fixedly connected with the bevel gears 3033, the two bevel gears 3033 are meshedly connected, the top end of the lower stirring rod 3031 penetrates out of the mixing tank 301, the single direction bearing 3034 is arranged between the two stirring rods 3031, the outer ring body and the inner ring body of the single direction bearing 3034 are connected with one stirring rod 3031 respectively, the surface of the stirring rod 3031 is hingedly connected with the first hinge rod 3035, the other end of the first hinge rod 3035 is hingedly connected with the second hinge rod 3036, the other end of the second hinge rod 3036 is slidingly connected with the stirring rod 3031, the inner top walls of the mixing tank 301 and the pretreatment tank 302 are fixedly connected with the guide rings 3037, the surface of the guide ring 3037 is provided with the corrugated groove 3038, the inner wall of the corrugated groove 3038 is slidingly connected with the sliding rod 3039, the other end of the sliding rod 3039 penetrates out of the corrugated groove 3038 and is provided with the connecting rod 30310, the other end of the connecting rod 30310 is slidingly connected with the second hinge rod 3036, the surface of the stirring rod 3031 is provided with the sliding groove 30312, the inner wall of the sliding groove 30312 is slidingly connected with the sliding block 30311, the other end of the sliding block 30311 penetrates out of the sliding groove 30312 and is hingedly connected with the other end of the second hinge rod 3036, the raw materials of the matrix are placed into the pretreatment tank 302, the first motor 3032 is started, under the action of the two bevel gears 3033, the upper stirring rod 3031 rotates, drives the first hinge rod 3035 and the second hinge rod 3036 to rotate, in this process, the connecting rod 30310 rotates synchronously with the second hinge rod 3036, the sliding rod 3039 moves in the corrugated groove 3038, the sliding rod 3039 drives the connecting rod 30310 to move up and down under the influence of the shape of the corrugated groove 3038, thereby drives the second hinge rod 3036 to change, changes the included angle between the first hinge rod 3035 and the second hinge rod 3036 to a certain extent, thereby improves the stirring effect, when the second hinge rod 3036 changes, the sliding block 30311 moves in the sliding groove 30312 while following the second hinge rod 3036, and simultaneously plays a limiting purpose on the second hinge rod 3036,Improve the mixing effect. The initial base assembly 305 includes a mounting frame 3051, the inner wall of the mounting frame 3051 is rotatably connected with a first stirring roller 3052, the top end of the mounting frame 3051 is fixedly connected with a second motor 3053, the other end of the first stirring roller 3052 penetrates out of the mounting frame 3051, the output shaft of the second motor 3053 and one end of the first stirring roller 3052 are both fixedly connected with a belt pulley 3054, a synchronous belt 3055 is transmissionally connected between the two belt pulleys 3054, the bottom end of the mixing tank 301 is provided with an accumulation hopper 3057, the accumulation hopper 3057 and the mounting frame 3051 are provided with a discharge valve 3056, the bottom end of the lower stirring rod 3031 is provided with a spiral blade 3058, one side of the inner wall of the mounting frame 3051 is fixedly connected with a first guide plate 3059, when it is needed to use, the material is transported into the mixing tank 301 for mixing, when the material needs to enter into the initial base assembly 305, the first motor 3032 is reversely rotated, under the action of the one-way bearing 3034, the lower stirring rod 3031 is driven to rotate, the stirring rod 3031 drives the spiral blade 3058 to rotate, the material in the accumulation hopper 3057 is transported into the mounting frame 3051, the second motor 3053 is started, under the action of the two belt pulleys 3054 and the synchronous belt 3055, the first stirring roller 3052 discharges the substrate in the mounting frame 3051 onto the first guide plate 3059, the gravity is utilized to realize the base covering operation of the cultivation tray, the substrate treatment mechanism 3 can utilize the pretreatment tank 302 to sufficiently mix the material of the substrate in advance, and no strong medicament and water are added before use, so that the timeliness of the substrate is reduced, the substrate treatment mechanism 3 can sufficiently mix the substrate in the mixing tank 301 and the pretreatment tank 302, in the process of stirring, the stirring assembly 303 can be stirred up and down, so that the stirring effect is improved, the scraper assembly 304 can automatically adhere to the inner wall of the tank body, so that the substrate and other materials are prevented from adhering to the tank wall, the mixing effect is improved, the pretreatment tank 302 can realize the mixing operation of the substrate, the mixing tank 301 can realize the timely mixing and stirring of the strong medicament and water, the substrate is mixed immediately before use, the timeliness is effectively improved, the influence of time on the substrate is reduced, the survival rate of seedling raising is improved, and the initial base assembly 305 can realize the uniform initial base covering of the cultivation tray, the automation degree is high, and the influence of skill proficiency on the survival rate is reduced.

[0042] The lifting assembly 401 comprises a lifting plate 4013 located between the two conveying belts 2, both ends of the lifting plate 4013 are fixedly connected with strip-shaped rods 4014, the top end of the bottom plate 1 is fixedly connected with a third motor 4011, the output shaft of the third motor 4011 is fixedly connected with a threaded rod 4012, one of the strip-shaped rods 4014 is threadedly connected with the threaded rod 4012, the top end of the bottom plate 1 is fixedly connected with a limiting rod 4015 in sliding connection with the other strip-shaped rod 4014, the third motor 4011 is started, the third motor 4011 drives the threaded rod 4012 to rotate synchronously, the lifting plate 4013 is driven to change by one of the strip-shaped rods 4014, under the action of the other strip-shaped rod 4014 and the limiting rod 4015, the lifting plate 4013 moves vertically and lifts the seedling tray to a high position. The supporting assembly 402 comprises two vertical plates 4021 fixedly installed at the top end of the bottom plate 1, the opposite sides of the two vertical plates 4021 are both provided with mounting grooves 4023, the opposite sides of the two vertical plates 4021 are both provided with receiving grooves 4024 in communication with the mounting grooves 4023, the inner walls of the receiving grooves 4024 are movably connected with supporting plates 4025, the top end of the bottom plate 1 is rotatably connected with a threaded tube 4027, one end of the threaded tube 4027 is threadedly connected with a lead screw 4028, the other end of the lead screw 4028 is fixedly connected with a push-pull rod 4029 in a rectangular structure, the end portion of the push-pull rod 4029 slidably penetrates into the mounting groove 4023 and is fixedly connected with the supporting plate 4025, the surface of the threaded tube 4027 is fixedly connected with a gear 40212, the opposite sides of the two vertical plates 4021 are both fixedly connected with second springs 40211, the bottom ends of the second springs 40211 are fixedly connected with a rack 40210 in mesh with the gear 40212, the opposite sides of the two strip-shaped rods 4014 are both fixedly connected with trigger plates 4022, during the movement of the strip-shaped rods 4014, when the height of the seedling tray exceeds the supporting plate 4025, the trigger plate 4022 drives the rack 40210 to move upwards, thereby driving the gear 40212 to rotate, the threaded tube 4027 rotates in place, under the limitation of the push-pull rod 4029, the lead screw 4028 moves axially and linearly, and the supporting plate 4025 is pushed out of the receiving groove 4024 and used for receiving the cultivation tray. The one-way limiting assembly 403 comprises an L-shaped rod 4032 fixedly installed at the top end of the bottom plate 1, the surface of the threaded tube 4027 is fixedly connected with a ratchet wheel 4031, one side of the L-shaped rod 4032 is rotatably connected with a pawl 4033 matched with the ratchet wheel 4031, a coiled spring 4034 is arranged between the pawl 4033 and the L-shaped rod 4032, the top end of the pawl 4033 is fixedly connected with a strip-shaped plate 4035, under the action of the coiled spring 4034, the pawl 4033 effectively limits the ratchet wheel 4031, the threaded tube 4027 can only rotate in one direction, and the stability of the supporting assembly 402 is increased.The trigger assembly 404 comprises a placing frame 4041 arranged at the top end of the bottom plate 1, the inner wall of the placing frame 4041 is provided with a driving air bag 4043, the bottom end of the trigger plate 4022 is fixedly connected with a pressing plate 4042, the top end of the bottom plate 1 is fixedly connected with a cylinder 4044, a connecting pipe 4047 is arranged between the cylinder 4044 and the driving air bag 4043, one end of the inner wall of the cylinder 4044 is fixedly connected with a third spring 4045, the other end of the third spring 4045 is fixedly connected with a piston rod 4046, the other end of the piston rod 4046 penetrates out of the cylinder 4044, when the third motor 4011 reversely rotates, the lifting plate 4013 and the strip-shaped rod 4014 are driven to move downward, the strip-shaped rod 4014 drives the trigger plate 4022 to move downward and extrudes the driving air bag 4043 in the placing frame 4041 through the pressing plate 4042, the gas enters into the cylinder 4044, the gas drives the piston rod 4046 to move, the third spring 4045 is stretched, the piston rod 4046 pushes the strip-shaped plate 4035, drives the ratchet 4033 to rotate, so that the ratchet 4033 and the ratchet wheel 4031 are disengaged, under the action of the second spring 40211, the rack 40210 moves downward to reset, which is the same as the above operation principle, only the operation direction is opposite, the supporting plate 4025 is pulled by the push-pull rod 4029 and retracts into the accommodating groove 4024, the cultivation disc loses support and automatically falls onto the lifting plate 4013, the vibration disc operation of the cultivation disc is completed, the vibration disc mechanism 4 can realize that the seedling cultivation disc is stably placed at a fixed height by the cooperation of the lifting assembly 401 and the supporting assembly 402, the optimal height is twenty centimeters, the one-way limiting assembly 403 can avoid the reverse rotation of the supporting assembly 402, increase the stability of the supporting assembly 402, and cooperate with the trigger assembly 404 to automatically release the one-way limiting assembly 403 by the operation of the lifting assembly 401, the supporting assembly 402 is automatically released, the cultivation disc automatically completes the vibration disc operation under the action of gravity, the automation degree is high, the labor intensity of the vibration disc is reduced, the vibration disc time is saved, the influence of timeliness, skill proficiency and effective cooperation on the process is reduced, and the survival rate of cultivation is improved.

[0043] The sowing treatment mechanism 5 comprises a U-shaped frame 501 fixedly installed on the other side of the top end of the base plate 1, a first scraper 502 adjustably arranged at the top end of the U-shaped frame 501, the bottom end of the first scraper 502 penetrating into the U-shaped frame 501, a first air cylinder 503 arranged at the top end of the U-shaped frame 501, the bottom end of the first air cylinder 503 penetrating the U-shaped frame 501 and fixedly connected with a hole pressing plate 504, a seedling bed sower 505 and a base re-covering assembly 506 sequentially arranged on the inner top wall of the U-shaped frame 501 from left to right, a second air cylinder 507 arranged at the top end of the U-shaped frame 501, the bottom end of the second air cylinder 507 penetrating into the U-shaped frame 501 and fixedly connected with a second scraper 508, strip-shaped grooves 509 formed on the inner walls of the U-shaped frame 501, guide rollers 510 uniformly distributed and rotationally connected with the inner walls of the strip-shaped grooves 509, the first scraper 502 being capable of preliminarily scraping the substrate on the cultivation tray, when the cultivation tray moves to the position directly below the hole pressing plate 504, the first air cylinder 503 is started to drive the hole pressing plate 504 to move downward to perform the hole pressing operation on the cultivation tray, after the hole pressing operation is completed, the conveyor belt 2 is started to use the seedling bed sower 505 (a new agricultural equipment, replacing the traditional manual operation, which can use a similar seedling bed sower as in the patent No. CN213881081U, which is a conventional technical means, thus not being described in detail) to sow the pressed holes, use the base re-covering assembly 506 to re-cover the base of the cultivation tray, and use the second air cylinder 507 and the second scraper 508 to re-scrape the cultivation tray after the base is covered for the second time.

[0044] Working principle:

[0045] In use, the polystyrene foam cultivation tray for cultivation is placed on the left conveying belt 2, and the cultivation tray is conveyed to the below of the substrate processing mechanism 3. The raw material of the substrate is placed into the pretreatment tank 302 through the feeding port 3021, and the first motor 3032 is started to rotate, at this time, the stirring rod 3031 in the pretreatment tank 302 rotates, and the one-way bearing 3034 is in relative rotation between the inner and outer rings in this state, so the stirring rod 3031 in the mixing tank 301 is not in action. The stirring rod 3031 in the pretreatment tank 302 drives the first hinged rod 3035 and the second hinged rod 3036 to rotate, in this process, the connecting rod 30310 will rotate synchronously with the second hinged rod 3036, the sliding rod 3039 will move in the corrugated groove 3038, and the sliding rod 3039 will drive the connecting rod 30310 to move up and down under the influence of the shape of the corrugated groove 3038, thereby driving the second hinged rod 3036 to change, changing the included angle between the first hinged rod 3035 and the second hinged rod 3036 to a certain extent, thereby improving the stirring effect, and the scraper frame 3041 will rotate synchronously with the stirring rod 3031, and the wall scraping plate 3043 will be closely attached to the tank wall under the action of the first spring 3042, so as to avoid the substrate material staying on the tank wall.

[0046] Before filling the substrate, the valve 3023 is opened to discharge the substrate into the mixing tank 301 through the discharge pipe 3022, and the medicament is added to the mixing tank 301, and then the appropriate amount of water is added to meet the dryness and humidity requirements of the substrate, and then the discharge pipe 3022 is closed and the new raw material is supplemented in the pretreatment tank 302 through the feeding port 3021. The stirring assembly 303 is reversed again by starting the first motor 3032, in this state, the inner and outer rings of the one-way bearing 3034 are relatively static, so the stirring rod 3031 in the mixing tank 301 and the pretreatment tank 302 rotates synchronously, thereby realizing the stirring of the substrate in the two tanks, and the stirring rod 3031 in the mixing tank 301 drives the spiral blade 3058 to rotate, conveying the material in the collecting hopper 3057 to the mounting frame 3051 to complete the discharge.

[0047] The second motor 3053 is started, and under the action of the two pulleys 3054 and the synchronous belt 3055, the first stirring roller 3052 discharges the substrate in the mounting frame 3051 to the first guide plate 3059, and the substrate is used to realize the substrate covering operation of the cultivation tray by gravity. After the covering is completed, the left conveying belt 2 conveys the cultivation tray to the vibrating tray mechanism 4. When the vibrating tray mechanism 4 is located at the middle end of the bottom of the cultivation tray, the conveying belt 2 is stopped, the third motor 4011 is started, the third motor 4011 drives the threaded rod 4012 to rotate synchronously, one of the strip-shaped rods 4014 drives the lifting plate 4013 to change, and under the action of the other strip-shaped rod 4014 and the limiting rod 4015, the lifting plate 4013 moves vertically to lift the cultivation tray to a high position. In the moving process of the strip-shaped rod 4014, when the height of the cultivation tray exceeds the support plate 4025, the trigger plate 4022 drives the rack 40210 to move upwards, thereby driving the gear 40212 to rotate. The threaded tube 4027 rotates in place, the screw rod 4028 moves axially and linearly under the limiting of the push-pull rod 4029 and pushes the support plate 4025 out of the storage slot 4024 through the push-pull rod 4029. At the same time, under the action of the coil spring 4034, the pawl 4033 drives the ratchet wheel 4031 to be effectively limited, so that the threaded tube 4027 can only rotate in one direction, thereby increasing the stability of the support assembly 402. When the third motor 4011 reversely rotates, it drives the lifting plate 4013 and the strip-shaped rod 4014 to move downwards, and the strip-shaped rod 4014 drives the trigger plate 4022 to move downwards and extrudes the driving air bag 4043 in the placement frame 4041 through the pressing plate 4042. The gas enters the cylinder 4044, the gas pushes the piston rod 4046 to move, the third spring 4045 is stretched, the piston rod 4046 pushes the strip-shaped plate 4035, drives the pawl 4033 to rotate, so that the pawl 4033 and the ratchet wheel 4031 are disengaged, and under the action of the second spring 40211, the rack 40210 moves downwards to reset. The operation principle is the same as above, only the running direction is opposite. The support plate 4025 enters the storage slot 4024, the cultivation tray loses the supporting force and automatically falls onto the lifting plate 4013, completing the vibrating tray operation of the cultivation tray. The conveying belt 2 is started again, and the cultivation tray after the vibrating tray enters the seeding treatment mechanism 5. The first scraper 502 can preliminarily scrape the substrate on the cultivation tray. When the cultivation tray moves to the bottom of the pressure hole plate 504, the first cylinder 503 is started, the pressure hole plate 504 is driven to move downwards, and the cultivation tray is subjected to the pressure hole operation. After the pressure hole operation is completed, the conveying belt 2 is started, the seeding device 505 is used for seeding the pressure hole, the second substrate covering assembly 506 is used for covering the substrate again, the second cylinder 507 and the second scraper 508 are used for scraping the cultivation tray after the second substrate covering again, and the whole seeding and substrate covering operation is completed. The cultivation tray is placed in the water pool as soon as possible to avoid the substrate drying and losing water, affecting the emergence rate.

[0048] The above merely is the preferred embodiment of the present application, it should be pointed out that, for ordinary skilled in the art, without departing from the technical principles of the present application, can also make several improvements and variations, these improvements and variations should also be considered as the protection scope of the present application.

Claims

1. An automatic seeding and filling device for tobacco floating seedling, characterized in that, The substrate processing mechanism, the vibration tray mechanism and the seeding processing mechanism are arranged on the top of the bottom plate. The substrate processing mechanism is arranged on one side of the top of the bottom plate, and is used for rapidly stirring the substrate and performing a preliminary substrate covering operation on the seedling tray. The vibration tray mechanism is arranged on the middle of the top of the bottom plate, and is used for automatically vibrating the seedling tray after the preliminary substrate covering operation. The seeding processing mechanism is arranged on the other side of the top of the bottom plate, and is used for automatically pressing holes, seeding, re-covering the substrate and scraping the seedling tray after the vibration operation. The two conveying belts are arranged between the bottom plate and the substrate processing mechanism, the vibration tray mechanism and the seeding processing mechanism, and are used for conveying the seedling tray to complete the corresponding operation. The stirring assembly comprises a first motor mounted at the bottom of the pretreatment tank, a stirring rod rotatably connected in the pretreatment tank and the mixing tank, a taper gear fixedly connected to the bottom end of the upper stirring rod and the surface of the output shaft of the first motor, two taper gears in meshing connection, a one-way bearing arranged between the two stirring rods, a first hinged rod hinged to the surface of the stirring rod, a second hinged rod hinged to the other end of the first hinged rod, the other end of the second hinged rod in sliding connection with the stirring rod, a guide ring fixedly connected to the inner top wall of the mixing tank and the pretreatment tank, a corrugated groove formed in the surface of the guide ring, a sliding rod in sliding connection with the inner wall of the corrugated groove, a connecting rod penetrating out of the corrugated groove and in sliding connection with the other end of the second hinged rod, and a sliding block in sliding connection with the inner wall of the sliding groove and hinged to the other end of the second hinged rod. The scraping plate assembly comprises a scraping plate frame fixedly connected to the surface of the stirring rod, a first spring fixedly connected to one end of the inner wall of the scraping plate frame, and a scraping wall plate fixedly connected to the other end of the first spring. The lifting assembly comprises a lifting plate between the two conveying belts, a strip-shaped rod fixedly connected to each end of the lifting plate, a third motor fixedly connected to the top of the bottom plate, a threaded rod fixedly connected to the output shaft of the third motor, and a limiting rod in sliding connection with the other strip-shaped rod. The support assembly comprises two vertical plates fixedly installed at the top end of the bottom plate, the opposite sides of the two vertical plates are each provided with a mounting groove, the opposite sides of the two vertical plates are each provided with a receiving groove in communication with the mounting groove, the inner wall of the receiving groove is movably connected with a support plate, the top end of the bottom plate is rotatably connected with a threaded pipe, one end of the threaded pipe is threadedly connected with a lead screw, the other end of the lead screw is fixedly connected with a push-pull rod, the end portion of the push-pull rod slides into the mounting groove and is fixedly connected with the support plate, the surface of the threaded pipe is fixedly connected with a gear, the opposite sides of the two vertical plates are each fixedly connected with a second spring, the bottom end of the second spring is fixedly connected with a rack engaged with the gear, the opposite sides of the two strip-shaped rods are each fixedly connected with a trigger plate. The one-way limiting assembly comprises an L-shaped rod fixedly installed at the top end of the bottom plate, the surface of the threaded pipe is fixedly connected with a ratchet wheel, one side of the L-shaped rod is rotatably connected with a pawl matched with the ratchet wheel, a coil spring is arranged between the pawl and the L-shaped rod, the top end of the pawl is fixedly connected with a strip-shaped plate. The trigger assembly comprises a placing frame arranged at the top end of the bottom plate, the inner wall of the placing frame is provided with a driving air bag, the bottom end of the trigger plate is fixedly connected with a pressing plate, the top end of the bottom plate is fixedly connected with a cylinder, a connecting pipe is arranged between the cylinder and the driving air bag, one end of the inner wall of the cylinder is fixedly connected with a third spring, the other end of the third spring is fixedly connected with a piston rod, the other end of the piston rod penetrates out of the cylinder and can abut against the strip-shaped plate.

2. The automatic seeding and filling device for tobacco floating seedling according to claim 1, characterized in that, The primary base coating assembly comprises a mounting frame, the inner wall of the mounting frame is rotatably connected with a first dolly roller, the other end of the first dolly roller penetrates out of the mounting frame, the top end of the mounting frame is fixedly connected with a second motor, the output shaft of the second motor and one end of the first dolly roller are each fixedly connected with a belt pulley, the two belt pulleys are transmissionally connected with a synchronous belt, the bottom end of the mixing tank is provided with an accumulation hopper, the accumulation hopper and the mounting frame are provided with a discharge valve, the bottom end of the lower stirring rod is provided with a spiral blade, one side of the inner wall of the mounting frame is fixedly connected with a first guide plate.

3. The automatic seeding and filling device for tobacco floating seedling according to claim 1, characterized in that, The seeding treatment mechanism comprises a U-shaped frame fixedly installed at the other side of the top end of the bottom plate, the top end of the U-shaped frame is provided with an adjustable first scraper, the bottom end of the first scraper penetrates into the U-shaped frame, the top end of the U-shaped frame is provided with a first air cylinder, the bottom end of the first air cylinder penetrates the U-shaped frame and is fixedly connected with a hole pressing plate, the inner top wall of the U-shaped frame is sequentially provided with a seeder and a secondary base coating assembly from left to right, the top end of the U-shaped frame is provided with a second air cylinder, the bottom end of the second air cylinder penetrates into the U-shaped frame and is fixedly connected with a second scraper, the inner wall of the U-shaped frame is provided with strip-shaped grooves on both sides, the inner wall of the strip-shaped grooves is rotatably connected with uniformly distributed guide rollers.

4. The automatic seeding and filling device for tobacco floating seedling according to claim 3, characterized in that, The secondary base coating assembly comprises a base coating frame fixedly connected to the inner top wall of the U-shaped frame, the front end of the base coating frame is fixedly connected with a fourth motor, the inner wall of the base coating frame is rotatably connected with a second dolly roller, one end of the second dolly roller penetrates the base coating frame and is fixedly connected with the output shaft of the fourth motor, the inner wall of the base coating frame is fixedly connected with a second guide plate, the top end of the base coating frame is provided with a feeding pipe, the top end of the feeding pipe penetrates out of the U-shaped frame.

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