An agricultural seedling tray precision breeding production line

Abstract

The application discloses a kind of agricultural seedling tray precision breeding production lines, it includes seedling tray conveying line body, the seedling tray conveying line body is provided with the front soil mechanism and seeding mechanism of layout sequentially;The seeding mechanism includes base and seed distribution mechanism;The seed distribution mechanism can be driven by the translational rotary motion of circular track relative to the base under the driving action of rotary drive mechanism;The seed distribution mechanism includes the belt with the seed filling hole of row layout, the end of the belt has a row of guide hopper;The seedling tray conveying line body also has the fixed seed tube relative to ground, the number of the seed tube and the guide hopper is equal, and they are one-to-one through hose connection.The translational rotary motion of the seed distribution mechanism under the action of rotary drive mechanism, the flexible connection of guide hopper and fixed seed tube through hose, can realize the efficiency and accuracy of seedling tray precision seeding, and there will be no defects such as cavity that affect seedling tray seedling quality.

Description

Technical Field

[0001] This invention relates to the field of agricultural seedling machinery technology, and in particular to a precision breeding production line for agricultural seedling trays. Background Technology

[0002] Significant progress has been made in seedling production technology for crops such as rice in recent years. For example, Chinese patent CN208317371 U discloses a complete set of automated mechanical rice pot seedling and mat-shaped seedling tray seedling raising equipment. Through the coordinated operation of an automatic conveying mechanism, a precision sowing device, and a stacking tray mechanism, the processes of spreading soil, sowing, and covering soil are automated. This technology uses a structure of a perforated belt rotating in combination with seed suction holes for precision sowing, and controls the movement rhythm of the seedling trays through a segmented variable speed conveyor belt. However, in practical applications, the stability of seed filling in the sowing stage is still insufficient: when the perforated belt is running at high speed, the seed suction holes are prone to increased void rates due to poor seed flowability, and the high pressure of the roller brush at the top of the inclined belt surface inside the seed box can easily cause the roller brush to become clogged with seeds. This can lead to incomplete seed cleaning in the inclined section, carrying away excess seeds and directly affecting the uniformity of the seedling mat and the uniformity of seedling emergence. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides an agricultural seedling tray precision breeding production line that can guarantee sowing accuracy and seeding stability.

[0004] Technical solution: To achieve the above objectives, the present invention provides an agricultural seedling tray precision breeding production line, which includes a seedling tray conveyor line, on which a front soil feeding mechanism and a sowing mechanism are arranged sequentially; the sowing mechanism includes a machine base and a seed dispensing mechanism.

[0005] The seeding mechanism is capable of translating and rotating relative to the base along a circular trajectory under the driving action of the rotary drive mechanism; the seeding mechanism includes a belt with a row of seed filling holes, and the end of the belt has a row of guide buckets, the number of guide buckets being equal to the number of seed filling holes in the row on the belt and arranged in a one-to-one correspondence.

[0006] The seedling tray conveyor line also has seeding tubes fixed relative to the ground. The number of seeding tubes and the guide buckets are equal, and they are connected one-to-one by flexible hoses.

[0007] Furthermore, there is a watering mechanism between the front soil-feeding mechanism and the seeding mechanism; the rear side of the seeding mechanism also has a rear soil-feeding mechanism; the rear soil-feeding mechanism has the same structure as the front soil-feeding mechanism.

[0008] Furthermore, the front soil-feeding mechanism includes a soil storage box, a conveyor belt on the lower side of the soil storage box, a flexible baffle that contacts the conveyor belt on one side below the soil storage box, and a rigid baffle on the other side. There is a gap between the rigid baffle and the upper surface of the conveyor belt, and the gap width is adjustable. The edge of the conveyor belt has a guide ramp.

[0009] With the above structure, when filling the seedling tray with soil, the conveyor belt moves and transports the soil on its surface toward the rigid baffle, so that some soil passes through the gap and falls from the end of the conveyor belt to the guide plate, and then falls into the seedling tray along the guide plate.

[0010] Furthermore, the watering mechanism includes an inverted U-shaped bracket, a water pump installed on the upper side of the bracket, and two pipes installed on the inner side of the bracket. The pipes have downward-facing water outlets arranged in a straight array. The water pump is connected to both pipes simultaneously via a T-junction.

[0011] The above structure allows for even watering of the soil in the seedling trays, promoting seed growth. A water collection tank is installed directly below the support frame on the bottom of the seedling tray conveyor line. A drain pipe is installed at the bottom of the water collection tank to catch any leaking water, allowing the water in the tank to drain out.

[0012] Furthermore, a front rolling mechanism and a rear rolling mechanism are respectively provided on the rear side of the front soil-feeding mechanism and the rear soil-feeding mechanism to roll and flatten the soil placed in the seedling tray.

[0013] Furthermore, the upper part of the belt has a flat section and an inclined section;

[0014] The seed-separating mechanism also includes a seed-restricting mechanism that encloses a seed storage space on the flat section, with the belt of the flat section forming the base of the seed storage space; it also includes a return mechanism located above the flat section; the return mechanism includes a circulating belt and multiple feeding plates equidistantly installed on the circulating belt, with the movement direction of the feeding plates on the lower half of the circulating belt being opposite to the movement direction of the belt on the flat section of the belt.

[0015] During operation, the rotary drive mechanism drives the seed dispensing mechanism to rotate and translate relative to the base. This facilitates the entry of seeds from the storage space into the filling holes on the belt of the horizontal section. Simultaneously, it allows seeds on the inclined section that haven't entered the filling holes to roll down to the base of the inclined section, achieving seed cleaning of the inclined section's belt surface. A roller brush, installed at the upper end of the inclined section and the front of the guide bucket, removes any remaining seeds with low cleaning pressure. The return mechanism's conveying plate pushes the seeds that have rolled back from the inclined section forward, preventing seed accumulation at the base of the inclined section and maintaining the uniformity and thickness of the seed layer on the horizontal section, ensuring a high success rate for seed filling.

[0016] Furthermore, the seed limiting mechanism includes a front panel and two lateral units. The lateral units can be plates fixed relative to the front panel or raised edges fixed to the belt.

[0017] Furthermore, the rotary drive mechanism includes a drive motor, which drives the sorting mechanism through an eccentric mechanism. The rotary drive mechanism also includes a counterweight. The connecting shaft between the eccentric mechanism and the sorting mechanism, and the counterweight, are positioned on opposite sides of the input shaft of the eccentric mechanism. When the sorting mechanism rotates, the counterweight can achieve balance with the sorting mechanism, effectively reducing the shaking of the machine base and improving operational stability. In addition, the distance between the counterweight and the input shaft is at least an order of magnitude larger than the distance between the connecting shaft and the input shaft, which can reduce the weight of the counterweight. A platform is provided above the machine base, and the counterweight is located above the platform. Rollers are installed on the counterweight to contact the platform, thus reducing resistance and providing effective support for the counterweight.

[0018] Beneficial effects: The precision breeding production line for agricultural seedling trays of the present invention has the following beneficial effects:

[0019] (1) By the translational and rotational motion of the seeding mechanism under the action of the rotational drive mechanism, the success rate of filling the seed holes on the belt can be guaranteed. With the one-to-one correspondence between the belt with rows of seed holes and the guide bucket, and the flexible connection between the guide bucket and the fixed seeding tube through the hose, the high efficiency and precision of seed tray precision seeding can be achieved.

[0020] (2) Through the structural design of the front soil-feeding mechanism and the rear soil-feeding mechanism, it is possible to uniformly feed soil into the seedling tray, and the amount of soil fed can be adjusted by adjusting the gap width.

[0021] (3) The seeding mechanism adopts a design that gathers the seeds on the surface of the belt, eliminating the need for a seed box and significantly reducing the size of the mechanism. The rotational action promotes seed filling through the seed filling holes in the horizontal section and cleans the seed surface of the inclined section, reducing the cleaning pressure of the roller brush. The back-pushing mechanism prevents seeds from accumulating at the base of the inclined section and ensures the uniformity of the seed layer on the horizontal section. Attached Figure Description

[0022] Figure 1 A side view of the precision breeding production line for agricultural seedling trays;

[0023] Figure 2 A top-view structural diagram of a precision breeding production line for agricultural seedling trays;

[0024] Figure 3 for Figure 1 AA sectional view of the structure;

[0025] Figure 4 This is a three-dimensional structural diagram of the front-end soil-discharging mechanism;

[0026] Figure 5 This is a cross-sectional view of the front soil-feeding mechanism;

[0027] Figure 6 This is a front view of the watering mechanism.

[0028] Figure 7 This is a three-dimensional structural diagram of the watering mechanism;

[0029] Figure 8 This is a side view of the seeding mechanism.

[0030] Figure 9 This is a three-dimensional structural diagram of the seeding mechanism;

[0031] Figure 10 This is a cross-sectional view of the sorting mechanism;

[0032] Figure 11 This is a structural diagram of a portion of the rotary drive mechanism.

[0033] In the diagram: 1-Seedling tray conveyor line; 2-Front soil feeding mechanism; 21-Soil storage box; 22-Conveyor belt; 23-Flexible baffle; 24-Rigid baffle; 25-Guide inclined plate; 3-Sowing mechanism; 3A-Base; 3B-Seed dispensing mechanism; 3C-Rotating drive mechanism; 31-Belt; 31a-Horizontal section; 31b-Inclined section; 32-Guide bucket; 33-Seed feeding tube; 34-Hose; 35-Seed limiting mechanism; 351-Front side panel; 3 52-Side unit; 36-Return mechanism; 361-Circulating belt; 362-Push plate; 37-Drive motor; 38-Eccentric mechanism; 38a-Connecting shaft; 38b-Input shaft; 39-Counterweight; 310-Roller; 311-Roll brush; 4-Watering mechanism; 41-Bracket; 42-Water pump; 43-Pipeline; 44-Tee; 45-Water tank; 46-Drain pipe; 5-Rear soil-pouring mechanism; 6-Front rolling mechanism; 7-Rear rolling mechanism. Detailed Implementation

[0034] The invention will now be further described with reference to the accompanying drawings.

[0035] like Figure 1 and Figure 2 The agricultural seedling tray precision breeding production line shown includes a seedling tray conveyor line 1, on which a front soil feeding mechanism 2 and a sowing mechanism 3 are arranged in sequence; the sowing mechanism 3 includes a machine base 3A and a seed dispensing mechanism 3B.

[0036] The seeding mechanism 3B can perform translational and rotational motion relative to the base 3A along a circular trajectory under the driving action of the rotational drive mechanism 3C; the seeding mechanism 3B includes a belt 31 with a row of seed filling holes, and the end of the belt 31 has a row of guide buckets 32, the number of guide buckets 32 being equal to the number of seed filling holes in the row on the belt 31 and arranged in a one-to-one correspondence.

[0037] like Figure 3 As shown, the seedling tray conveyor line 1 also has a seeding tube 33 fixed relative to the ground. The number of seeding tubes 33 and the guide buckets 32 are equal, and they are connected one-to-one by a flexible hose 34.

[0038] By using the translational and rotational motion of the seeding mechanism 3A under the action of the rotational drive mechanism, the success rate of filling the seed holes on the belt 31 can be guaranteed. With the one-to-one correspondence between the belt 31 with rows of seed holes and the guide bucket 32, and the flexible connection between the guide bucket 32 ​​and the fixed seeding tube 33 through the flexible hose 34, the high efficiency and precision of seed tray precision seeding can be achieved.

[0039] Preferably, the watering mechanism 4 is located between the front soil-feeding mechanism 2 and the sowing mechanism 3; the rear side of the sowing mechanism 3 also has a rear soil-feeding mechanism 5; the rear soil-feeding mechanism 5 has the same structure as the front soil-feeding mechanism 2.

[0040] like Figure 4 and Figure 5 As shown, the front soil feeding mechanism 2 includes a soil storage box 21, a conveyor belt 22 on the lower side of the soil storage box 21, and a flexible baffle 23 that contacts the conveyor belt 22 is installed on one side below the soil storage box 21, and a rigid baffle 24 is installed on the other side. There is a gap between the rigid baffle 24 and the upper surface of the conveyor belt 22, and the gap width is adjustable. The edge of the conveyor belt 22 has a guide ramp 25.

[0041] With the above structure, when filling the seedling tray with soil, the conveyor belt 22 rotates and transports the soil on its surface towards the rigid baffle 24, allowing some soil to pass through the gap and fall from the end of the conveyor belt 22 onto the guide plate 25, and then fall into the seedling tray along the guide plate 25. Through the structural design of the front soil-filling mechanism 2 and the rear soil-filling mechanism 5, uniform soil filling of the seedling tray can be achieved, and the amount of soil filled can be adjusted by adjusting the gap width.

[0042] like Figure 6 and Figure 7As shown, the watering mechanism 4 includes an inverted U-shaped bracket 41, a water pump 42 installed on the upper side of the bracket 41, and two pipes 43 installed on the inner side of the bracket 41. The pipes 43 have downward-facing water outlets arranged in a straight array. The water pump 42 is connected to the two pipes 43 simultaneously through a tee 44.

[0043] The above structure allows for even watering of the soil in the seedling trays, promoting seed growth. A water collection tank 45 is installed below the seedling tray conveyor line 1, directly below the support 41. A drain pipe 46 is installed at the bottom of the water collection tank 45, which can catch any leaking water. Water in the water collection tank 45 can be discharged through the drain pipe 46.

[0044] Preferably, a front rolling mechanism 6 and a rear rolling mechanism 7 are respectively provided on the rear side of the front soil-feeding mechanism 2 and the rear soil-feeding mechanism 5, so as to roll and flatten the soil put into the seedling tray.

[0045] Preferably, such as Figures 8 to 10 As shown, the upper part of the belt 31 has a flat section 31a and an inclined section 31b;

[0046] The seed-seed dispensing mechanism 3B also includes a seed-restricting mechanism 35 that encloses a seed storage space on the flat section 31a, with the belt of the flat section 31a forming the base plate of the seed storage space; it also includes a return mechanism 36 located above the flat section 31a; the return mechanism 36 includes a circulating belt 361 and a plurality of feeding plates 362 equidistantly installed on the circulating belt 361, with the movement direction of the feeding plates 362 on the lower half of the circulating belt 361 being opposite to the movement direction of the belt of the flat section 31a on the belt 31.

[0047] During operation, the rotary drive mechanism 3C drives the seed-distributing mechanism 3B to perform a translational and rotary motion relative to the base 3A. On the one hand, this promotes the entry of seeds in the seed storage space into the filling holes on the belt located on the horizontal section 31a; on the other hand, it allows seeds on the inclined section 31b that have not entered the filling holes to roll down to the base of the inclined section 31b, achieving seed cleaning of part of the belt surface of the inclined section 31b. A roller brush 311 is installed at the upper end of the inclined section 31b and on the front side of the guide bucket 32 ​​to brush away the remaining seeds. The cleaning pressure of the roller brush 311 is low. The feeding plate 362 of the return mechanism 36 pushes the seeds that have rolled back from the inclined section 31b forward to prevent seeds from accumulating at the base of the inclined section 31b and to maintain the uniformity and consistency of the seed layer on the horizontal section 31a, ensuring the success rate of seed filling.

[0048] With the above structure, the design of gathering seeds on the surface of the belt 31 eliminates the need for a seed box, significantly reducing the size of the mechanism. The rotational action promotes seed filling through the seed filling holes of the horizontal section 31a and cleans the seed surface of the inclined section 31b, reducing the cleaning pressure of the roller brush 35. The retraction mechanism 36 prevents seeds from accumulating at the base of the inclined section 31b and ensures the uniformity of the seed layer on the horizontal section 31a.

[0049] Preferably, the seed limiting mechanism 35 includes a front side panel 351 and two lateral units 352, wherein the lateral units 352 may be plates fixed relative to the front side panel 351 (e.g., Figure 9 As shown), it can also be a raised flange fixed to the belt 31 (as shown). Figure 10 (As shown).

[0050] Preferably, the rotating drive mechanism 3C includes a drive motor 37, which drives the sorting mechanism 3B to operate via an eccentric mechanism 38, and the rotating drive mechanism 3C further includes a counterweight 39; Figure 11 As shown, the connecting shaft 38a of the eccentric mechanism 38 and the sorting mechanism 3B, and the counterweight 39 are respectively placed on both sides of the input shaft 38b of the eccentric mechanism 38. When the sorting mechanism 3B rotates, the counterweight 39 can achieve balance with the sorting mechanism 3B, effectively reducing the shaking of the base 3A and improving the stability of operation. In addition, the distance between the counterweight 39 and the input shaft is at least one order of magnitude larger than the distance between the connecting shaft and the input shaft, which can reduce the weight of the counterweight 39. Figure 11 As shown, the base 3A has a platform on top, and the counterweight 39 is located on the platform. The counterweight 39 is equipped with rollers 310 that contact the platform, which reduces resistance and provides effective support for the counterweight 39.

[0051] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An agricultural seedling tray precision breeding production line, comprising a seedling tray conveyor line (1), wherein a front soil feeding mechanism (2) and a sowing mechanism (3) are arranged sequentially on the seedling tray conveyor line (1); the sowing mechanism (3) comprises a base (3A) and a seed dispensing mechanism (3B); characterized in that: The seeding mechanism (3B) is capable of translational rotation relative to the base (3A) along a circular trajectory under the driving action of the rotation drive mechanism (3C); the seeding mechanism (3B) includes a belt (31) with a row of seed filling holes, and the end of the belt (31) has a row of guide buckets (32). The upper part of the belt (31) has a flat section (31a) and an inclined section (31b). The seed-separating mechanism (3B) also includes a seed-restricting mechanism (35) that encloses the seed storage space on the flat section (31a), and a retraction mechanism (36) located above the flat section (31a); a roller brush (311) for brushing away the remaining seeds is installed at the upper end of the inclined section (31b) and on the front side of the guide bucket (32). The seedling tray conveyor line (1) also has a seeding tube (33) fixed relative to the ground. The number of seeding tubes (33) and guide buckets (32) are equal, and they are connected one-to-one by hoses (34). The return mechanism (36) includes a circulating belt (361) and a plurality of feed plates (362) equidistantly mounted on the circulating belt (361). The movement direction of the feed plates (362) on the lower half of the circulating belt (361) is opposite to the movement direction of the belt in the flat section (31a) of the belt (31). The rotary drive mechanism (3C) includes a drive motor (37), which drives the sorting mechanism (3B) to operate through an eccentric mechanism (38), and the rotary drive mechanism (3C) also includes a counterweight (39); the connecting shaft between the eccentric mechanism (38) and the sorting mechanism (3B) and the counterweight (39) are respectively placed on both sides of the input shaft of the eccentric mechanism (38).

2. The precision breeding production line for agricultural seedling trays according to claim 1, characterized in that, It also includes a watering mechanism (4) placed between the front soil-feeding mechanism (2) and the sowing mechanism (3); the rear side of the sowing mechanism (3) also has a rear soil-feeding mechanism (5); the rear soil-feeding mechanism (5) has the same structure as the front soil-feeding mechanism (2).

3. The precision breeding production line for agricultural seedling trays according to claim 2, characterized in that, The front soil-feeding mechanism (2) includes a soil storage box (21), a conveyor belt (22) on the lower side of the soil storage box (21), and a flexible baffle (23) in contact with the conveyor belt (22) is installed on one side below the soil storage box (21), and a rigid baffle (24) is installed on the other side. There is a gap between the rigid baffle (24) and the upper surface of the conveyor belt (22), and the gap width is adjustable. The edge of the conveyor belt (22) has a guide ramp (25).

4. The precision breeding production line for agricultural seedling trays according to claim 2, characterized in that, The watering mechanism (4) includes an inverted U-shaped bracket (41), a water pump (42) installed on the upper side of the bracket (41), and two pipes (43) installed on the inner side of the bracket (41). The pipes (43) have downward-facing and linearly arrayed water outlets. The water pump (42) is connected to the two pipes (43) simultaneously through a tee (44).

5. The precision breeding production line for agricultural seedling trays according to claim 2, characterized in that, The front soil-throwing mechanism (2) and the rear soil-throwing mechanism (5) are respectively provided with a front rolling mechanism (6) and a rear rolling mechanism (7).

6. The precision breeding production line for agricultural seedling trays according to claim 1, characterized in that, The seed limiting mechanism (35) includes a front panel (351) and two lateral units (352), the lateral units (352) being either plates fixed relative to the front panel (351) or raised edges fixed to the belt (31).

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