Vegetable breeding seeder

Abstract

The present application discloses a vegetable breeding seeder, which relates to the technical field of sowing equipment. The present application optimizes and improves the structure of the vegetable breeding seeder in the prior art, utilizes a soft hollow belt body provided with multiple exhaust holes as a carrier of vegetable seeds; utilizes negative pressure to control the attraction of the pores on the soft hollow belt body to the seeds; when in use, the soft hollow belt body is controlled to rotate as needed, and during the rotation, the seed holding bin is probed to take seeds, and when the taken seeds move to the top of the seedling hole tray, the transported seeds are placed into the target seed hole; when the seeds are replaced, only the soft hollow belt body needs to be replaced; the technical effects of the vegetable breeding seeder being high in operating efficiency, low in probability of missing seeds, and convenient and efficient switching of the seeds at low cost are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of sowing equipment, in particular to a vegetable breeding sowing machine. Background Art

[0002] Seedling cultivation is an important measure to bring vegetables to market earlier and increase yields. It also has the advantages of seizing the season, expanding the planting area, economical use of land and facilitating seedling management. In order to improve the utilization rate of seeds, today's seedling cultivation work generally tries to place one seed in a seed pit.

[0003] In the existing technology, most vegetable breeding and seeding machines adopt the traditional pneumatic sowing method; that is, using the principle of air pressure, the seeds are sucked out of the seed storage container through the air pressure difference, and then the seeds are accurately sown into the seedling hole tray containing the matrix through pipes or nozzles; although the above-mentioned sowing method meets the basic sowing needs to a certain extent, it still needs to be improved in terms of operating efficiency, seed hole leakage rate (seed hole leakage will seriously affect the quality of sowing and the uniformity of seedling emergence) and seed (different vegetable seeds have different sizes and shapes) switching convenience; and before and after the seeds are placed in the seedling hole tray, different amounts of matrix (bottom matrix and covering matrix) need to be filled in the seed hole according to the seed type. In the existing technology, the matrix delivery component of the vegetable breeding and seeding machine is difficult to flexibly apply to different seeds.

[0004] Therefore, there is a need for a vegetable breeding seeder with high operating efficiency, low probability of missing seeds in seed holes, convenient and efficient switching of seeds, and low cost of changing seeds. Summary of the Invention

[0005] The embodiment of the present application solves the technical problems in the prior art of vegetable breeding seeders, such as relatively low operating efficiency, relatively high seed hole leakage rate, poor seed switching convenience and high cost when switching the planted seeds, by providing a vegetable breeding seeder; and achieves the technical effects of high operating efficiency of the vegetable breeding seeder, low probability of seed leakage, convenient and efficient switching of the planted seeds and low cost.

[0006] The embodiment of the present application provides a vegetable breeding and sowing machine, comprising a support frame, a bottom conveying assembly, a seed storage bin located above the bottom conveying assembly and having an open top, and a seed suction and seed dispensing assembly;

[0007] The seed suction and seed distribution assembly includes a supporting side frame located on one side of the bottom conveying assembly, a belt support roller group, a seed transport belt and a pump air assembly connected to the seed transport belt;

[0008] The support roller group is a combination of four or more horizontal hard rollers, all of which are connected to the supporting side frame at one end so as to rotate around their own axes, one of the rollers is located in the seed storage bin, and one of the rollers is located directly above the bottom conveying assembly and close to the bottom conveying assembly;

[0009] The seed transport belt is a hollow belt-shaped ring made of rubber material, which is sleeved on the support roller group and is stretched straight; the surface of the seed transport belt away from the support roller group is provided with multiple rows of seed suction holes;

[0010] A protrusion is provided on the side wall of the roller close to the bottom conveying component. The existence of the protrusion causes the seed transport belt close to the protrusion to be squeezed and deformed, causing some seed suction holes on the seed transport belt to be blocked in time due to squeezing.

[0011] Furthermore, the seed transport belt includes a bottom belt body, a supporting soft ring and a top belt body; the bottom belt body is a belt-shaped ring-shaped elastic membrane made of rubber material; the supporting soft ring is a rubber ring body, and there are two of them, which are respectively fixed on the surface of the bottom belt body away from the belt support roller group and are both arranged close to the edge of the bottom belt body; the top belt body is a soft membrane made of rubber or plastic material, and is fixed on the supporting soft ring near the edge; the cross-section of the seed transport belt is a U-shaped shape; the seed suction holes are all located on the top belt body.

[0012] Preferably, the seed suction and seed distribution assembly further includes a support belt block;

[0013] The support belt block is a hard hollow block, positioned on the support frame and located in the space surrounded by the transport belt;

[0014] The support belt block has a built-in pump body, and multiple surfaces are closely attached to the surface of the transport belt close to the support belt roller group;

[0015] The support belt block is close to the surface of the transport belt and is provided with multiple through grooves;

[0016] The through slot is a long strip-shaped through slot, the length direction of which is perpendicular to the width direction of the transport belt;

[0017] When the pump body in the support belt block is in operation, negative pressure is created in the internal space of the support belt block to adsorb the belt.

[0018] Preferably, it also includes a matrix delivery component;

[0019] The matrix delivery component is located on the side of the seed suction and seed distribution component away from the seed storage compartment, and a lifting and pressing plate is provided on both sides for compacting the matrix in the seedling hole tray;

[0020] The substrate delivery assembly includes a substrate bin and a rotating distribution column located at the bottom of the substrate bin; the substrate bin is a vertically arranged rectangular bin body fixed on the support frame, with openings at the top and bottom, and the bottom opening is in contact with the side wall of the rotating distribution column;

[0021] The rotating material distribution column is a horizontally arranged hard column that rotates around its own axis and is connected to the support frame;

[0022] Multiple rows of pits for storing materials are evenly arranged on the side wall of the rotating material distribution column.

[0023] Preferably, a visual detection system is also included to determine whether vegetable seeds are adsorbed and fixed on the seed suction holes through machine vision.

[0024] Preferably, the pump air assembly includes an air pump and a connecting pipe; both ends of the connecting pipe are positioned on the air pump and the transport belt through a rotating sealing assembly.

[0025] Furthermore, the spacing between two adjacent rows of seed suction holes is greater than 8 cm;

[0026] the length of the blank area on the surface of the seed transport belt away from the support roller group is greater than the length of the line connecting the near warehouse roller, the top reversing roller and the far warehouse roller in sequence.

[0027] Preferably, a belt pressing bag is fixedly mounted on the near-bin roller;

[0028] The compression bag is an elastic tubular bag connected to the pump, and its expansion and contraction are controlled by the control unit;

[0029] The seed transport belt is covered with seed suction holes;

[0030] When the pressure belt bag is inflated in a controlled manner, it contacts the bottom belt body, causing the bottom belt body to squeeze the top belt body, thereby causing the seed suction holes near the near-bin roller to lose their ability to absorb and fix seeds in a timely manner, thereby allowing the amount of seeds carried by the seed transport belt to be adjusted in a timely manner as needed during vegetable breeding and sowing.

[0031] Preferably, the rotating material distribution column includes a base column, an outer covering tube and an outer sleeve;

[0032] The base column is a horizontally arranged hard cylinder, and multiple rows of receiving grooves are evenly arranged on its side wall; the receiving grooves are cylindrical grooves, and the depth direction is the same as the radial direction of the base column;

[0033] The basic column has a built-in air extraction component; the air extraction component is connected to all the receiving slots;

[0034] The outer covering tube is a rubber film tube, which is sleeved and tightly attached to the outer wall of the foundation column;

[0035] The outer sleeve is a hard tube body, which is sleeved and tightly attached to the outer wall of the outer covering pipe and is indirectly fixed to the foundation column;

[0036] The outer sleeve is provided with communicating holes corresponding to the accommodating grooves one by one; the outline of the communicating holes is the same as the outline of the top opening of the accommodating grooves.

[0037] Preferably, the setting of the pump air component is cancelled;

[0038] Both ends of the belt support roller group are provided with supporting side frames, and both supporting side frames are fixed on the supporting frame;

[0039] The bottom belt body is composed of a first bottom belt and a second bottom belt, both of which are fixed on the supporting soft ring at their edges, and both of which are fixed with an attraction soft strip at their edges away from the supporting soft ring, and the two are fixed together by adsorption of the attraction soft strip;

[0040] In addition to the through grooves, the surface of the support block close to the bottom belt body is also provided with adsorption strips and through holes; the adsorption strips are long permanent magnets; each plane of the support block close to the bottom belt body is provided with two adsorption strips;

[0041] The adsorption strip is arranged close to the attraction strip and located on both sides of the attraction strip, and is used to open a small opening between the two attraction strips to allow gas to flow through the magnetic force;

[0042] The through holes are located between the two adsorption strips, and there are multiple through holes, which serve as gas channels; the support block has a built-in pump to maintain a negative pressure state inside the support block.

[0043] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0044] By optimizing and improving the structure of the vegetable breeding and seeder in the prior art, a soft hollow belt body with multiple exhaust holes is used as a carrier of vegetable seeds; negative pressure is used to control the attraction of the pores on the soft hollow belt body to the seeds; when in use, the soft hollow belt body is controlled to rotate as needed, and during the rotation, the seed holding bin is probed to take seeds and the transported seeds are placed into the target seed holes when the taken seeds move to just above the seedling hole tray; when replacing the seeds, only the soft hollow belt body or even only the membrane with pores on the soft hollow belt body needs to be replaced; effectively solves the technical problems of relatively low operating efficiency, relatively high seed hole leakage rate, poor seed switching convenience and high cost of switching the seed in the prior art of the vegetable breeding and seeder; thereby achieving the technical effects of high operating efficiency, low probability of seed leakage, convenient and efficient switching of the seed and low cost of the vegetable breeding and seeder. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic diagram of the overall structure of the vegetable breeding and seeder in this application;

[0046] Figure 2 This is a schematic diagram of the appearance and structure of the vegetable breeding and seeder in this application;

[0047] Figure 3 This is a schematic diagram of the positional relationship between the seed suction and seed distribution components and the seed storage compartment;

[0048] Figure 4 Schematic diagram of the positional relationship between the supporting side frame, top reversing roller, near-bin roller, far-bin roller and support pulley;

[0049] Figure 5 Schematic diagram of the positional relationship between the transport belt and the top reversing roller, near-bin roller, far-bin roller and support pulley;

[0050] Figure 6 It is a structural diagram of this belt;

[0051] Figure 7 It is the structural diagram of the remote storage roller;

[0052] Figure 8 Schematic diagram of the positional relationship between the lifting and pressing plate and the matrix delivery assembly;

[0053] Figure 9 It is a schematic diagram of the structure of the matrix delivery component;

[0054] Figure 10 This is a simplified diagram of the internal structure of the rotating distribution column;

[0055] Figure 11 It is a schematic diagram of the local structure of the rotating distribution column;

[0056] Figure 12 Schematic diagram of the positional relationship between the support belt block and the transport belt;

[0057] Figure 13 Schematic diagram of the positional relationship between the near-bin roller and the belt pressing bag;

[0058] Figure 14 This is a structural diagram of the position where the belt is in close contact with the support block;

[0059] Figure 15 It is a structural diagram of the support belt block and the transport belt.

[0060] In the figure: seedling hole tray 001, support frame 100, bottom conveying assembly 200, bottom carrier plate 210, seed storage bin 300, storage box 310, support side frame 410, top reversing roller 420, near bin roller 430, belt pressing bag 431, far bin roller 440, belt pressing protrusion 441, belt support roller 450, seed transport belt 460, bottom belt body 461, support soft ring 462, top belt body 463, seed suction hole 464, reinforcement ring 465, suction soft strip 466, air pump 471, connecting pipe 472, lifting and pressing plate 500, top lifting body 510, matrix bin 610, base column 621, storage groove 622, exhaust assembly 623, outer covering tube 624, outer sleeve 625, connecting hole 626, belt support block 700, through groove 710, adsorption strip 720, through hole 730. DETAILED DESCRIPTION

[0061] To facilitate understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0062] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are for illustrative purposes only and do not represent the only implementation method.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains; the terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0064] Example 1

[0065] like Figures 1 to 9 As shown, the vegetable breeding and seeding machine of the present application includes a support frame 100, a bottom conveying assembly 200, a seed holding chamber 300, a seed suction and seed distribution assembly, a lifting and pressing plate 500, a matrix delivery assembly, a power assembly and a control unit.

[0066] The support frame 100 is composed of a plurality of plates and / or a plurality of rods spliced ​​together, and is an integrated structure or a split structure, fixed on the ground, and plays the role of bearing and supporting other components of the vegetable breeding and seeding machine.

[0067] like Figure 1 and Figure 2 As shown, the bottom conveying assembly 200 is positioned on the ground or on the support frame 100 and is arranged horizontally to carry and support the seedling tray 001 and drive the seedling tray 001 to move horizontally along its own length direction.

[0068] Furthermore, the bottom conveying assembly 200 is a horizontally arranged conveyor belt structure.

[0069] Preferably, the bottom conveying assembly 200 is a conveyor belt structure, and a bottom carrier plate 210 is positioned between the annular belt body; the bottom carrier plate 210 is a horizontally arranged hard rectangular plate, the edge of which is fixed on the support frame 100, and is suspended, with the top against the bottom of the annular belt body, for indirectly supporting the seedling hole tray 001 so as to better compact the matrix therein.

[0070] like Figure 3As shown, the seed storage bin 300 is used to store vegetable seeds that need to be sown. It is located directly above or diagonally above the bottom conveying assembly 200, fixed on the support frame 100, and has an opening at the top that faces directly above or diagonally above.

[0071] Furthermore, the seed storage bin 300 is a hard box body with an open top and an inclined setting. The part close to the seed suction and seed distribution component is lower, and the seed storage bin 300 is fixed on the support frame 100; a storage box 310 is fixed at the bottom obliquely above the seed storage bin 300; the storage box 310 is a hard box body with a discharge port at the bottom, vegetable seeds are stored inside, and a quantitative discharge mechanism is provided at the discharge port; during operation, the storage box 310 is controlled by the control unit to timely release (replenish) seeds to the seed storage bin 300.

[0072] The seed suction and seed placement assembly is used to quantitatively absorb the vegetable seeds in the seed storage bin 300 and put them into the seedling tray 001 at a regular and quantitative time, and includes a support side frame 410, a support roller group, a seed transport belt 460 and a pump air assembly connected to the seed transport belt 460;

[0073] The support side frame 410 is located on one side of the bottom conveyor assembly 200 and is a vertically arranged hard plate body fixed on the support frame 100 for carrying and fixing the support belt roller group;

[0074] The belt support roller group is a combination of more than four horizontally placed hard rollers, all of which rotate independently and one end of which rotates around its own axis and is connected to the supporting side frame 410, and are all located at the top of the bottom conveying assembly 200, and at least one roller rotates under the coordinated control of the power assembly and the control unit; the belt support roller group is used to carry the seed transport belt 460, drive the seed transport belt 460 to rotate and shape it, one of the rollers is located in the seed holding bin 300, one of the rollers is located directly above the bottom conveying assembly 200 and close to the bottom conveying assembly 200, so that a part of the seed transport belt 460 penetrates into the seed holding bin 300 to absorb vegetable seeds, and a part is located directly above the bottom conveying assembly 200 for putting vegetable seeds into the seedling hole tray 001 located at the top of the bottom conveying assembly 200;

[0075] The seed transport belt 460 is a hollow belt-shaped ring made of rubber, which is put on the support roller group and is stretched straight; the internal space of the seed transport belt 460 is connected to the pump air component; the surface of the seed transport belt 460 away from the support roller group is provided with multiple rows of seed suction holes 464; the seed suction holes 464 are through holes, and a row of seed suction holes 464 corresponds to a row of holes on the seedling hole tray 001;

[0076] The side wall of the roller close to the bottom conveying assembly 200 is provided with a protrusion, which is tubular. The existence of the protrusion makes the roller look like a stepped shaft and causes the seed transport belt 460 close to the protrusion to be squeezed and deformed, so that some of the seed suction holes 464 on the seed transport belt 460 are blocked in time due to the squeezing (such as Figure 5 As shown, as the seed transport belt 460 rotates, the internal space of some positions of the seed transport belt 460 is compressed, thereby causing some rows of seed suction holes 464 to be blocked).

[0077] Furthermore, the distance between the seed transport belt 460 close to the bottom conveying component 200 and the top surface of the bottom conveying component 200 is 1.3 to 1.6 times the thickness of the seedling tray 001.

[0078] Furthermore, when the belt is stretched out by the support roller assembly, the longitudinal section of the transport belt 460 is heart-shaped (with the apex facing upward).

[0079] Further, such as Figure 4 As shown, the belt support roller group includes a top reversing roller 420, a near-bin roller 430, a far-bin roller 440 and a belt support roller 450; the roller close to the bottom conveying assembly 200 is the far-bin roller 440, and the protrusion thereon is the belt pressing protrusion 441; the roller at the top is the top reversing roller 420; the top reversing roller 420 rotates under the coordinated control of the power assembly and the control unit; the near-bin roller 430 is located in the seed holding bin 300; the belt support roller 450 is located below the top reversing roller 420 and above the near-bin roller 430 and the far-bin roller 440, and is spatially located between the near-bin roller 430 and the far-bin roller 440; the seed transport belt 460 is always close to the top reversing roller 420, the near-bin roller 430, the far-bin roller 440 and the belt support roller 450.

[0080] Further, such as Figure 6 As shown, the seed transport belt 460 includes a bottom belt body 461, a supporting soft ring 462 and a top belt body 463; the bottom belt body 461 is a belt-shaped ring-shaped elastic film made of rubber material; the supporting soft ring 462 is a rubber ring body, and there are two of them, which are respectively fixed on the surface of the bottom belt body 461 away from the belt support roller group and are both arranged close to the edge of the bottom belt body 461; the top belt body 463 is a soft film made of rubber or plastic material, and is fixed on the supporting soft ring 462 near the edge; the cross-section of the seed transport belt 460 is a U-shaped; the seed suction holes 464 are all located on the top belt body 463.

[0081] Furthermore, in order to reduce the amount of the transport belt 460 being sucked flat due to negative pressure, the transport belt 460 also includes a reinforcement ring 465; the reinforcement ring 465 is a rubber soft ring, which is sleeved on the bottom belt body 461 and is tightly attached to and fixed on the bottom belt body 461.

[0082] Further, such as Figure 7As shown, in order to adapt to the setting of the reinforcement ring 465, the number of the pressure belt protrusions 441 on the remote bin roller 440 is multiple and arranged in a row.

[0083] Preferably, in order to balance the pressure in the belt 460, the reinforcement ring 465 is provided with a plurality of holes for gas circulation.

[0084] Preferably, in order to improve the uniformity of gas distribution in the transport belt 460, the supporting soft ring 462 is a hollow ring, and its side wall close to the inside of the transport belt 460 is densely covered with through holes; the pump gas assembly is connected to the inside of the supporting soft ring 462.

[0085] Preferably, the top belt body 463 is detachably fixed on the supporting soft ring 462 .

[0086] Preferably, Figure 12 As shown, in order to further prevent the seed transport belt 460 from being sucked flat under negative pressure, the seed suction and seed distribution assembly also includes a support belt block 700; the support belt block 700 is a hard hollow block, positioned on the support frame 100 and located in the space surrounded by the seed transport belt 460; the support belt block 700 has a built-in pump body, and multiple surfaces are tightly attached to the surface of the seed transport belt 460 close to the support belt roller group; the surface of the support belt block 700 that is tightly attached to the seed transport belt 460 is provided with multiple through grooves 710; the through grooves 710 are long strip-shaped through grooves, and the length direction is perpendicular to the width direction of the seed transport belt 460; when the pump body in the support belt block 700 is in operation, negative pressure is created in the internal space of the support belt block 700 to adsorb the seed transport belt 460.

[0087] The main body of the pump air component is a gas pump, which is used to extract the gas in the seed transport belt 460 by suction and then create a negative pressure state in the seed transport belt 460 so that the seed suction hole 464 can absorb vegetable seeds.

[0088] Furthermore, the air pump assembly includes an air pump 471 and a connecting pipe 472; the air pump 471 is positioned on the support frame 100, and the connecting pipe 472 is a spring hose, one end of which is connected to the air pump 471, and the other end is connected to the internal space of the top belt body 463; the fixing point of the connecting pipe 472 on the transport belt 460 is located on the supporting soft ring 462 away from the supporting side frame 410.

[0089] The matrix delivery assembly is located on the side of the seed suction and seed distribution assembly away from the seed storage chamber 300, and is used to deliver matrix to the seedling plug tray 001 at a regular and quantitative time; both sides of the matrix delivery assembly are provided with a lifting and pressing plate 500 for compacting the matrix in the seedling plug tray 001;

[0090] The matrix delivery assembly includes a matrix bin 610 and a rotating distribution column located at the bottom of the matrix bin 610; the matrix bin 610 is a vertically arranged rectangular bin body, fixed on the support frame 100, with openings provided at the top and bottom, and the bottom opening fits the side wall of the rotating distribution column; the rotating distribution column is a horizontally arranged hard column, which is connected to the support frame 100 and rotates around its own axis, and rotates under the coordinated control of the power component and the control unit; multiple rows of pits for storing materials are evenly arranged on the side wall of the rotating distribution column; during the rotation of the rotating distribution column, the matrix in the matrix bin 610 fills the pits on the rotating distribution column under the influence of gravity; when the seedling hole tray 001 moves to directly below the rotating distribution column, the rotating distribution column rotates to fill the matrix in the pits into the seedling hole tray 001.

[0091] Preferably, the number of the lifting and compressing plate 500 is one.

[0092] Furthermore, in order to avoid material leakage and reduce wear, brushes are provided at the bottom opening of the matrix bin 610 close to the rotating distribution column, and these brushes fill the gap between the matrix bin 610 and the rotating distribution column.

[0093] like Figure 8 As shown, the lifting and pressure plate 500 is a hard plate body, which is positioned on the support frame 100 by the top lifting body 510; the top lifting body 510 is a telescopic rod structure or a scissors-type lifting structure, which is located at the top of the lifting and pressure plate 500, and drives the lifting and pressure plate 500 to rise and fall under the control of the control unit; the bottom of the lifting and pressure plate 500 is provided with a protrusion corresponding to the seed holes on the seedling hole tray 001; when the seedling hole tray 001 moves to the bottom of the lifting and pressure plate 500, the lifting and pressure plate 500 moves down to compact the matrix in the seed hole.

[0094] Preferably, in order to ensure that the matrix is ​​evenly, accurately and quickly filled into the pit, a vibration assembly is positioned on the matrix bin 610 .

[0095] Preferably, the inner bottom of the seed holding bin 300 is arc-shaped, and its contour is similar to the contour of the portion of the seed transport belt 460 close to the bin roller 430. When the seed holding bin 300 contains fewer seeds, the seed transport belt 460 can still suck up the seeds.

[0096] Preferably, in order to ensure the applicability of the matrix delivery component, it is possible to apply different amounts of matrix to different vegetable seeds and deliver them into the seed holes of the seedling tray 001; the pits on the rotating distribution column can be designed to be smaller and when delivering the matrix, the matrix in multiple pits on the rotating distribution column can be delivered into one seed hole.

[0097] The power assembly is used to provide power for the operation of various components of the vegetable breeding and sowing machine of this application, and the control unit plays a role in controlling the coordinated operation of various components of the vegetable breeding and sowing machine. Both are existing technologies and will not be described in detail here.

[0098] Preferably, the control unit is a combination of a programmable logic controller and control buttons.

[0099] Preferably, the vegetable breeding and seeder of the present application further includes a visual detection system, which uses machine vision to determine whether vegetable seeds are adsorbed and fixed on the seed suction holes 464; the visual detection system is prior art and will not be described in detail here.

[0100] When the vegetable breeding and sowing machine of the embodiment of the present application is used:

[0101] 1. First, put the vegetable seeds to be sown into the seed storage bin 300;

[0102] 2. Then control the bottom conveying assembly 200 to convey the seedling hole tray 001 to the bottom of the matrix delivery assembly to deliver the bottom matrix;

[0103] 3. Thereafter, the seedling hole tray 001 is controlled to move to the position directly below the seed suction and seed placement assembly; at the same time, the air pump assembly is controlled to operate continuously and the top reversing roller 420 is controlled to rotate intermittently, so that the seed transport belt 460 absorbs the seeds and then moves to the position directly above the seedling hole tray 001 for placement (when the seed transport belt 460 is close to the pressure belt protrusion 441, the bottom belt body 461 deforms due to pressure and contacts the top belt body 463 to close the rows of seed suction holes 464, so that the seeds absorbed by the seed suction holes 464 fall to the corresponding seed holes under the influence of their own weight); in order to prevent the connecting tube 472 from being severely twisted and distorted, the seed transport belt 460 rotates one or several times and then reverses one or several times;

[0104] 4. When a seedling tray 001 is loaded with seeds, it is controlled to move to the matrix delivery component to cover the top layer of matrix, and then compacted and transported away.

[0105] Preferably, in order to avoid severe twisting and distortion of the connecting tube 472 and to ensure that the transport belt 460 does not need to be reversed after rotating one or several circles, both ends of the connecting tube 472 are positioned on the air pump 471 and the transport belt 460 through a rotating sealing assembly; the rotating sealing assembly is a prior art and will not be described in detail here.

[0106] Furthermore, the spacing between two adjacent rows of seed suction holes 464 is greater than 8 cm; the number of rows of holes on the seedling hole tray 001 is the same as the number of rows of seed suction holes 464; the length of the blank area on the surface of the seed transport belt 460 away from the belt support roller group (the area without seed suction holes 464) is greater than the length of the line passing through the near warehouse roller 430, the top reversing roller 420 and the far warehouse roller 440 in sequence (because the seeds adsorbed on the seed suction holes 464 can only be unloaded near the far warehouse roller 440, the seed transport belt 460 can only carry the amount of seeds that fill one seedling hole tray 001 at a time; if the seed transport belt 460 is covered with seed suction holes 464, the seeds will be scattered onto the bottom conveying component 200 and / or the ground when it is shut down).

[0107] In order to improve the carrying capacity of the seed transport belt 460 and its flexibility in carrying seeds, as Figure 13 As shown, a pressure belt bag 431 is fixedly mounted on the near-warehouse roller 430; the pressure belt bag 431 is an elastic tubular bag, which is connected to the pump and its expansion and contraction is controlled by the control unit; the seed transport belt 460 is covered with seed suction holes 464; when the pressure belt bag 431 is controlled to be inflated and expanded, it contacts the bottom belt body 461, so that the bottom belt body 461 squeezes the top belt body 463 and thus the seed suction holes 464 near the near-warehouse roller 430 lose their ability to absorb and fix the seeds in time, so that the amount of seeds carried by the seed transport belt 460 can be adjusted in time as needed during vegetable breeding and sowing in this application.

[0108] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0109] The invention solves the technical problems in the prior art of vegetable breeding seeders, such as relatively low operating efficiency, relatively high seed hole leakage rate, poor seed switching convenience and high cost when switching the planted seeds; and achieves the technical effects of high operating efficiency of vegetable breeding seeders, low probability of seed leakage, convenient and efficient switching of the planted seeds and low cost.

[0110] Example 2

[0111] In order to further improve the flexibility and accuracy of the amount of substrate delivered by the substrate delivery component, and thereby improve the applicability of the substrate delivery component to different seeds, the embodiment of the present application further optimizes and improves the structure of the rotating distribution column on the basis of the above embodiment, specifically:

[0112] like Figure 10 and Figure 11 As shown, the rotating material distribution column includes a base column 621, an outer covering tube 624 and an outer sleeve 625;

[0113] The base column 621 is a horizontally arranged hard cylinder, and a plurality of rows of receiving grooves 622 are evenly arranged on its side wall; the receiving grooves 622 are cylindrical grooves, and the depth direction is the same as the radial direction of the base column 621;

[0114] The base column 621 has a built-in air extraction component 623; the main body of the air extraction component 623 is a pump, which is connected to all the receiving grooves 622;

[0115] The outer covering tube 624 is a rubber thin film tube, which is sleeved and tightly attached to the outer wall of the base column 621;

[0116] The outer sleeve 625 is a hard tube that is sleeved and tightly attached to the outer wall of the outer covering tube 624 and is indirectly fixed to the base column 621;

[0117] The outer sleeve 625 is provided with a communication hole 626 corresponding to the receiving groove 622; the contour of the communication hole 626 is the same as the contour of the top opening of the receiving groove 622;

[0118] When the substrate delivery assembly is required to operate, the air extraction assembly 623 can be controlled to operate as needed to control the air pressure in the receiving tank 622 and then control the outer tube 624 to be concave into the tank under the influence of the air pressure, thereby obtaining a pit that can accommodate different substrate amounts.

[0119] Example 3

[0120] In order to further avoid the twisting of the connecting tube 472, further improve the uniformity of the air pressure in the transport belt 460, and further improve the stability of the belt support roller group during long-term use; the embodiment of the present application cancels the setting of the pump air component on the basis of the above embodiment, adds a supporting side frame 410, and further optimizes and improves the structure of the bottom belt body 461 and the structure of the belt support block 700, specifically:

[0121] like Figure 14 and Figure 15 As shown, both ends of the belt support roller group are provided with support side frames 410, and both support side frames 410 are fixed on the support frame 100;

[0122] The bottom belt body 461 is composed of two belt-shaped annular elastic sheets joined together by magnetic force;

[0123] For the convenience of description, the two belt-shaped annular elastic sheets are defined as the first bottom belt and the second bottom belt respectively.

[0124] The first and second bottom belts are fixed to the supporting soft ring 462 at their edges near the edges, and are fixed with an attraction soft strip 466 at their edges away from the supporting soft ring 466; the attraction soft strip 466 is an annular strip; the first and second bottom belts are fixed together by attraction soft strip 466; the attraction soft strip 466 is a bar-shaped soft magnet or a bar-shaped soft capsule with built-in magnetic powder;

[0125] The support block 700 is provided with an adsorption strip 720 and a through hole 730 on its surface close to the bottom belt body 461 in addition to the through groove 710; the adsorption strip 720 is a long permanent magnet fixed on the outer wall of the support block 700 and flush with the outer wall of the support block 700; each plane of the support block 700 close to the bottom belt body 461 is provided with two adsorption strips 720; the length direction of the adsorption strip 720 is perpendicular to the width direction of the transport belt 460; the distance between the adsorption strip 720 and the attraction soft strip 466 is less than 2.5 cm; the adsorption strip 720 is arranged close to the attraction soft strip 466 and is located on both sides of the attraction soft strip 466, and is used to use magnetic force to cause a small opening to open between the two attraction soft strips 466 for gas circulation; the through hole 730 is located between the two adsorption strips 720, and there are multiple of them, which act as a gas channel; the support block 700 has a built-in pump to maintain the negative pressure state inside the support block 700.

[0126] During the rotation of the transport belt 460, the pump built into the support block 700 continues to run, and the soft strip 466 is attracted to open a small opening near the through hole 730 under the influence of magnetic force, so that the internal space of the transport belt 460 is connected with the internal space of the support block 700, maintaining the negative pressure state of the internal space of the transport belt 460.

[0127] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations are readily apparent to those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A vegetable breeding and sowing machine, comprising a support frame (100) and a bottom conveying assembly (200), characterized in that: It also includes a seed storage bin (300) located above the bottom conveying assembly (200) and having an open top, and a seed suction and seed distribution assembly; The seed suction and seed distribution assembly comprises a supporting side frame (410), a belt support roller group, and a seed transport belt (460) located on one side of the bottom conveying assembly (200); The support roller group is a combination of four or more horizontally placed hard rollers, all of which are connected to the supporting side frame (410) by rotating around their own axes at one end, one of the rollers is located in the seed storage bin (300), and one of the rollers is located directly above the bottom conveying assembly (200) and close to the bottom conveying assembly (200); The seed transport belt (460) is a hollow belt-shaped ring made of rubber material, which is sleeved on the support roller group and is stretched straight; a plurality of rows of seed suction holes (464) are provided on the surface of the seed transport belt (460) away from the support roller group; A protrusion is provided on the side wall of the roller close to the bottom conveying component (200), and the existence of the protrusion causes the seed transport belt (460) close to the protrusion to be squeezed and deformed, so that some seed suction holes (464) on the seed transport belt (460) are blocked in time due to the squeezing; The seed transport belt (460) comprises a bottom belt body (461), a supporting soft ring (462) and a top belt body (463); the bottom belt body (461) is a belt-shaped ring-shaped elastic film of rubber material; the supporting soft ring (462) is a rubber ring body, the number of which is two, and the two are respectively fixed on the surface of the bottom belt body (461) away from the support roller group and are both arranged close to the edge of the bottom belt body (461); the top belt body (463) is a rubber or plastic material soft film, and is fixed on the supporting soft ring (462) near the edge; the cross section of the seed transport belt (460) is a square shape; the seed suction holes (464) are all located on the top belt body (463); The roller located in the seed holding chamber (300) is a near-chamber roller 430); A pressure belt bag (431) is fixedly mounted on the near-warehouse roller (430); the pressure belt bag (431) is an elastic tubular bag, connected to a pump, and its expansion and contraction are controlled by a control unit; when the pressure belt bag (431) is controlled to be inflated and expanded, it contacts the bottom belt body (461), so that the bottom belt body (461) squeezes the top belt body (463), thereby causing the seed suction hole (464) near the near-warehouse roller (430) to lose its ability to absorb and fix seeds in a timely manner, thereby enabling the seed transport belt (460) to adjust the amount of seeds carried by the seed transport belt (460) as needed during vegetable breeding and sowing. The seed suction and seed distribution assembly further includes a support belt block (700); The support belt block (700) is a hard hollow block, positioned on the support frame (100) and located in the space surrounded by the transport belt (460); The support belt block (700) has a built-in pump body, and multiple surfaces are closely attached to the surface of the transport belt (460) close to the support belt roller group; The surface of the support block (700) close to the transport belt (460) is provided with a plurality of through grooves (710); The through groove (710) is a long strip-shaped through groove, and the length direction is perpendicular to the width direction of the transport belt (460); When the pump body in the belt support block (700) is in operation, negative pressure is created in the internal space of the belt support block (700) to thereby absorb the transport belt (460); both ends of the belt support roller group are provided with support side frames (410), and both support side frames (410) are fixed on the support frame (100); The bottom belt body (461) is formed by splicing and combining a first bottom belt and a second bottom belt, and the positions of the two belts close to the edges are fixed on the supporting soft ring (462), and the edges of the two belts away from the supporting soft ring (462) are fixed with an attraction soft strip (466), and the two belts are fixed together by adsorption through the attraction soft strip (466); In addition to the through groove (710) provided on the surface of the support belt block (700) close to the bottom belt body (461), there are also adsorption strips (720) and through holes (730); the adsorption strips (720) are long strip-shaped permanent magnets; each plane of the support belt block (700) close to the bottom belt body (461) is provided with two adsorption strips (720); The adsorption strips (720) are arranged close to the attraction soft strips (466) and located on both sides of the attraction soft strips (466), and are used to open a small opening between the two attraction soft strips (466) through magnetic force to allow gas to flow; The through holes (730) are located between the two adsorption strips (720) and are multiple in number, serving as gas channels; the support block (700) has a built-in pump to maintain a negative pressure state inside the support block (700); further improving the uniformity of the air pressure in the transport belt (460) and the stability of the support roller group during long-term use.

2. The vegetable breeding and sowing machine according to claim 1, characterized in that: Also included is a substrate delivery component; The matrix delivery assembly is located on a side of the seed suction and seed distribution assembly away from the seed storage bin (300), and a lifting and pressing plate (500) is provided on both sides for compacting the matrix in the seedling hole tray (001); The matrix delivery assembly comprises a matrix bin (610) and a rotating material distribution column located at the bottom of the matrix bin (610); the matrix bin (610) is a vertically arranged rectangular bin body, fixed on the support frame (100), with openings provided at the top and bottom, and the bottom opening is in contact with the side wall of the rotating material distribution column; The rotating material distribution column is a horizontally arranged hard column that rotates around its own axis and is connected to the support frame (100); Multiple rows of pits for storing materials are evenly arranged on the side wall of the rotating material distribution column.

3. The vegetable breeding and seeder according to claim 1, characterized in that: The device also includes a visual detection system for determining whether vegetable seeds are adsorbed and fixed on the seed suction hole (464) through machine vision.

4. The vegetable breeding and seeder according to claim 1, characterized in that: The pump air assembly includes an air pump and a connecting pipe (472); both ends of the connecting pipe (472) are positioned on the air pump (471) and the transport belt (460) through a rotating sealing assembly.

5. The vegetable breeding and seeder according to claim 4, characterized in that: The spacing between two adjacent rows of seed suction holes (464) is greater than 8 cm; The number of rows of holes on the seedling hole tray (001) is the same as the number of rows of seed suction holes (464); the length of the blank area on the surface of the seed transport belt (460) away from the support roller group is greater than the length of the line connecting the near warehouse roller (430), the top reversing roller (420) and the far warehouse roller (440) in sequence.

6. The vegetable breeding and seeder according to claim 4, characterized in that: The seed transport belt (460) is covered with seed suction holes (464).

7. The vegetable breeding and seeder according to claim 2, characterized in that: The rotating material distribution column includes a base column (621), an outer covering tube (624) and an outer sleeve (625); The base column (621) is a horizontally arranged hard cylinder, and a plurality of rows of receiving grooves (622) are evenly arranged on its side wall; the receiving grooves (622) are cylindrical grooves, and the depth direction is the same as the radial direction of the base column (621); The base column (621) has a built-in air extraction component (623); the air extraction component (623) is in communication with all the receiving slots (622); The outer covering tube (624) is a rubber thin film tube, which is sleeved and tightly attached to the outer wall of the base column (621); The outer sleeve (625) is a hard tube body, which is sleeved and tightly attached to the outer wall of the outer covering tube (624) and is indirectly fixed to the base column (621); The outer sleeve (625) is provided with a communication hole (626) corresponding to the receiving groove (622); the outline of the communication hole (626) is the same as the outline of the top opening of the receiving groove (622).

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