A drum-type plug seeding machine

Abstract

The utility model relates to the technical field of seeding machine, concretely is a kind of cylinder type plug seeding machine, including conveyer belt, two control consoles, two soil covering mechanisms, two scraping mechanisms, pit pressing mechanism and scraping mechanism, two soil covering mechanisms, two scraping mechanisms, pit pressing mechanism and scraping mechanism are all installed in the upper portion of conveyer belt, two control consoles are respectively arranged in the lower portion of conveyer belt left and right sides, the upper portion middle portion of conveyer belt is provided with the pick-and-place piece for picking and placing seed, this cylinder type plug seeding machine, the design of suction roller and air pressure switching block in pick-and-place piece can be through negative pressure suction seed, positive pressure release seed, motor two drive suction roller rotation, air pump maintains negative pressure, make seed adsorption in the outer wall of suction roller, in the position of switching for positive pressure, seed is pushed away from suction roller by air, subsequently accurately fall into plug under the action of gravity.

Description

Technical Field

[0001] This utility model relates to the field of seeder technology, and more specifically to a drum-type tray seeder. Background Technology

[0002] The drum-type tray seeder is a precision seeding device used in agriculture for tray seedling cultivation. Its core mechanism involves the negative pressure suction holes adsorbing seeds as the drum rotates, and releasing the negative pressure above the tray to complete the seeding.

[0003] In the prior art, such as the pneumatic suction tray seeder disclosed in CN113767731A, a sowing device is provided, which includes a pressing mechanism and a seed-laying mechanism. The pressing mechanism is located in front of the seed-laying mechanism. The seed-laying mechanism includes a seed-guiding component, a seed-laying component, and a seed-collecting component. The seed-laying component includes a seed-laying roller and an air chamber plate arranged coaxially. The seed-laying roller has multiple axially penetrating seed-laying chambers evenly arranged circumferentially. Each seed-laying chamber has an exhaust hole along its length. On the end face of the air chamber plate, a negative pressure air chamber, a positive pressure air chamber, and a normal pressure air chamber are arranged sequentially circumferentially. One end of the seed-laying chamber is connected to the negative pressure air chamber, the positive pressure air chamber, and the normal pressure air chamber in sequence during one rotation cycle of the seed-laying roller. The corresponding other end of the seed-laying chamber is closed by an end cap. The seed-guiding component is located near the starting end of the negative pressure air chamber, and the seed-collecting component is located below the seed-guiding component and near the positive pressure air chamber. This invention can effectively solve the problems of suction hole blockage and unstable negative pressure during the sowing process.

[0004] The above structure uses a C-shaped negative pressure chamber, two positive pressure chambers, and one normal pressure chamber to blow the seeds off. However, in actual use, one positive pressure chamber is sufficient to blow the seeds off, and the two extra chambers are insufficient. In addition, the excessively long positive pressure chamber will blow away the seed trays and seeds after the seeds fall, causing soil and seeds to fall off. Furthermore, the existing structure is relatively complex, resulting in high manufacturing and maintenance costs. Therefore, we propose a roller-type seed tray seeder. Utility Model Content

[0005] One of the technical problems this application aims to solve is that the existing structure is relatively complex, resulting in high manufacturing and maintenance costs for the equipment; an excessively long positive pressure chamber will blow away the seed trays and seeds after the seeds fall, causing soil and seeds to be blown away.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A roller-type tray seeder includes a conveyor belt, two control consoles, two soil covering mechanisms, two leveling mechanisms, a pressing mechanism, and a scraping mechanism. The two soil covering mechanisms, the two leveling mechanisms, the pressing mechanism, and the scraping mechanism are all installed on the upper part of the conveyor belt. The two control consoles are respectively located on the left and right sides of the lower part of the conveyor belt. The middle part of the upper part of the conveyor belt is provided with a seed picking and placing device.

[0008] Preferably, the pick-and-place device includes a fixed frame three disposed on the upper part of the conveyor belt, a plurality of evenly distributed screws two threadedly connected to the edge of the fixed frame three, the screws two being movably connected to the upper part of the conveyor belt, a suction roller being rotatably connected to the middle part of the fixed frame three, and air pressure switching blocks being disposed on both the left and right sides of the fixed frame three, the air pressure switching blocks abutting against the left and right ends of the suction roller.

[0009] Preferably, the air pressure switching block has a negative pressure groove and a positive pressure hole on the side near the suction roller, and a plurality of evenly distributed through holes are formed at the inner edge of the suction roller, with the through holes and the negative pressure groove overlapping with the positive pressure hole.

[0010] Preferably, a motor is provided at the front of the fixed frame three, the drive end of the motor is located at the rear end of the suction roller, an air pump is provided at the upper part of the fixed frame three, the air pump is connected to the air pressure switching block through a pipe, and a rotating handle is provided at the upper end of the screw two.

[0011] Preferably, the outer wall of the suction roller is provided with a plurality of evenly distributed suction holes, and the suction holes and the through holes are interconnected.

[0012] Preferably, a limiting block is provided inside the suction hole, and a limiting plate is provided at the bottom of the limiting block.

[0013] Preferably, the soil covering mechanism includes soil covering strips disposed on the upper left and right sides of the conveyor belt, with a soil trough disposed on the upper part of the soil covering strip and triangular protrusions disposed on the outer wall of the soil covering strip.

[0014] Preferably, the scraping mechanism includes two fixed frames four disposed on the upper left side of the conveyor belt, and a scraper is bolted between the two fixed frames four.

[0015] Preferably, the leveling mechanism includes two fixed frames disposed on the upper part of the conveyor belt. A screw is rotatably connected to the middle of the fixed frame, a protective shell is threadedly connected to the middle of the screw, a cleaning rod is rotatably connected to the middle of the protective shell, a motor is disposed on the rear side of the protective shell, the drive end of the motor is disposed at the rear end of the cleaning rod, and a rotating handle is disposed at the upper end of the screw.

[0016] Preferably, the denting mechanism includes two fixed frames two disposed on the upper part of the conveyor belt, and a denting roller is installed between the two fixed frames two by bolts.

[0017] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a drum-type tray seeder, which has the following beneficial effects:

[0018] 1. The design of the suction roller and air pressure switching block in the pick-and-place component can pick up seeds with negative pressure and release seeds with positive pressure. Motor 2 drives the suction roller to rotate, and the air pump maintains negative pressure, so that the seeds are adsorbed on the outer wall of the suction roller. When switching to positive pressure, the seeds are pushed away from the suction roller by the air and then fall accurately into the seed tray under the action of gravity.

[0019] 2. This utility model of a roller-type tray seeder achieves automatic seed collection and precise seed placement through the cooperation of components such as a conveyor belt, a soil covering mechanism, and a leveling mechanism. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the soil trough structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the picking and placing component of this utility model;

[0024] Figure 4 This is a schematic diagram of the air pressure switching block structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the negative pressure groove structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0027] in:

[0028] 1. Conveyor belt; 2. Control console; 3. Soil covering mechanism; 31. Soil trough; 32. Soil covering belt; 4. Scraping mechanism; 41. Fixing frame one; 42. Screw one; 43. Protective shell; 44. Cleaning rod; 45. Motor one; 46. Rotary handle one; 5. Pressing mechanism; 51. Fixing frame two; 52. Pressing roller; 6. Pick-up and drop-off parts; 61. Screw two; 62. Fixing frame three; 63. Rotary handle two; 64. Suction roller; 641. Through hole; 642. Suction hole; 643. Limiting block; 644. Limiting plate; 65. Motor two; 66. Air pump; 67. Air pressure switching block; 671. Negative pressure trough; 672. Positive pressure hole; 7. Scraping mechanism; 71. Fixing frame four; 72. Scraper. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: Please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 This utility model provides a technical solution: a roller-type tray seeder, including a conveyor belt 1, two control consoles 2, two soil covering mechanisms 3, two leveling mechanisms 4, a pressing mechanism 5, and a scraping mechanism 7. The two soil covering mechanisms 3, two leveling mechanisms 4, pressing mechanism 5, and scraping mechanism 7 are all installed on the upper part of the conveyor belt 1. The two control consoles 2 are respectively located on the left and right sides of the lower part of the conveyor belt 1. The middle part of the upper part of the conveyor belt 1 is provided with a seed picking and placing component 6 for picking up and placing seeds.

[0031] Furthermore, the pick-and-place component 6 includes a fixed frame 62 set on the upper part of the conveyor belt 1. Multiple evenly distributed screws 61 are threaded to the edge of the fixed frame 62. The screws 61 are movably connected to the upper part of the conveyor belt 1. A suction roller 64 is rotatably connected to the middle of the fixed frame 62. Air pressure switching blocks 67 are set on both the left and right sides of the fixed frame 62. The air pressure switching blocks 67 abut against the left and right ends of the suction roller 64.

[0032] The suction roller 64 can rotate to suck up and release seeds. The air pressure switching block 67 can cooperate with the suction roller 64 to switch the pressure. This allows the seeds that have rotated to the lower part of the suction roller 64 to be pushed away from the suction roller 64 by air, so that the seeds fall into the inside of the seed tray under the action of gravity.

[0033] Furthermore, the air pressure switching block 67 has a negative pressure groove 671 and a positive pressure hole 672 on the side near the suction roller 64, and a plurality of evenly distributed through holes 641 are provided at the inner edge of the suction roller 64. The through holes 641 and the negative pressure groove 671 overlap with the positive pressure hole 672.

[0034] The negative pressure groove 671 is C-shaped with a coverage angle of 270 degrees. By providing negative pressure to the negative pressure groove 671, the through hole 641 and the negative pressure groove 671 can maintain the same negative pressure when connected. In the area covered by the negative pressure groove 671, both the through hole 641 and the negative pressure groove 671 maintain negative pressure, which can absorb seeds. The positive pressure hole 672 is connected to the positive pressure. When the through hole 641 and the positive pressure hole 672 are connected, both the through hole 641 and the positive pressure hole 672 are under positive pressure. At the current position of the suction hole 642, air blows outward, and the seeds at this position are pushed downward by the air and fall into the interior of the seed tray.

[0035] Furthermore, a motor 65 is provided at the front of the fixed frame 3 62, and the driving end of the motor 65 is located at the rear end of the suction roller 64. An air pump 66 is provided at the upper part of the fixed frame 3 62, and the air pump 66 is connected to the air pressure switching block 67 through a pipe. A rotating handle 63 is provided at the upper end of the screw 2 61.

[0036] Motor 2 65 is used to drive the suction roller 64 to rotate. Air pump 66 can draw in air to keep the negative pressure groove 671 in a negative pressure state. The rear side of the fixed frame 3 62 is provided with a feeding structure. Rotating the handle 2 63 can drive the screw 2 61 to rotate and push the fixed frame 3 62 to rise and fall.

[0037] Furthermore, the outer wall of the suction roller 64 is provided with a plurality of evenly distributed suction holes 642, and the suction holes 642 and the through holes 641 are interconnected.

[0038] The suction hole 642 provides a hole for sucking up seeds. The through hole 641 and the suction hole 642 are connected to each other, so that negative pressure can be formed on the outside of the suction hole 642 to form a suction force to suck up the seeds.

[0039] Example 2: Please refer to Figure 6 Based on Embodiment 1, this utility model provides another technical solution: a limiting block 643 is provided inside the suction hole 642, and a limiting plate 644 is provided at the bottom of the limiting block 643;

[0040] The limiting block 643 is a conical rigid structure with a smooth inner wall. The shape of the limiting block 643 is wider on the outside and narrower on the inside. The inclined surface can increase the contact area between the seed and the limiting block 643, which can effectively increase the force of adsorbing the seed. At the same time, after the suction is lost, it can slide more smoothly. The limiting plate 644 can prevent seeds with too small an outer diameter from entering the interior of the suction roller 64 excessively and avoid getting stuck at the bottom of the limiting plate 644.

[0041] Example 3: Please refer to Figure 1 and Figure 2 The soil covering mechanism 3 includes soil covering belts 32 arranged on the upper left and right sides of the conveyor belt 1. Soil troughs 31 are provided on the upper part of the soil covering belts 32, and triangular protrusions are provided on the outer wall of the soil covering belts 32.

[0042] The soil trough 31 provides a soil storage structure. The soil covering belt 32 can carry the soil out of the soil trough 31 and fall into the inside of the seed tray when it rotates. Its raised triangular structure increases the volume of soil it can carry. The space between the triangular structures can carry a fixed amount of soil. By controlling the rotation speed of the soil covering belt 32, different amounts of soil can be achieved. The raised triangular structure increases the friction on the soil and also increases the stability of carrying the soil. Each triangle can carry a fixed amount of soil.

[0043] Example 4: Please refer to Figure 1 and Figure 2 The scraping mechanism 7 includes two fixed frames 71 located on the upper left side of the conveyor belt 1, and a scraper 72 is installed between the two fixed frames 71 by bolts.

[0044] By adjusting the bolts on both sides of the scraper 72, the height of the scraper 72 can be changed, allowing seedling trays of different heights to pass through. When the seedling tray passes through the scraper 72, the soil on the top of the seedling tray will be leveled by the scraper 72, preventing different amounts of soil from being present at different locations on the top of the seedling tray.

[0045] Example 5: Please refer to Figure 1 and Figure 2 The scraping mechanism 4 includes two fixed frames 41 set on the upper part of the conveyor belt 1. A screw 42 is rotatably connected to the middle of the fixed frame 41. A protective shell 43 is threadedly connected to the middle of the screw 42. A cleaning rod 44 is rotatably connected to the middle of the protective shell 43. A motor 45 is set on the rear side of the protective shell 43. The drive end of the motor 45 is set at the rear end of the cleaning rod 44. A handle 46 is set on the upper end of the screw 42.

[0046] Rotating the handle 46 can drive the screw 42 to rotate and push the protective shell 43 to rise and fall. The motor 45 is used to drive the cleaning rod 44 to rotate. The cleaning rod 44 can scrape the soil on the top of the seedling tray when it rotates, and at the same time further scrape the soil level.

[0047] Example 6: Please refer to Figure 1 and Figure 2 The denting mechanism 5 includes two fixed frames 51 set on the upper part of the conveyor belt 1, and a denting roller 52 is installed between the two fixed frames 51 by bolts.

[0048] The second fixing frame 51 can fix the pressing roller 52. The protrusions on the surface of the pressing roller 52 can squeeze the seed tray passing through it. While squeezing, the soil is pressed out to make the planting pit for the seed. By setting the pressing roller 52 to rotate, the area of ​​the pressing pit structure is reduced, while the continuity of pressing pits is increased, thus improving work efficiency.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0051] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A roller-type tray seeder, comprising a conveyor belt (1), two control consoles (2), two soil covering mechanisms (3), two leveling mechanisms (4), a pressing mechanism (5), and a scraping mechanism (7), characterized in that: The two soil covering mechanisms (3), the two leveling mechanisms (4), the pit pressing mechanism (5) and the scraping mechanism (7) are all installed on the upper part of the conveyor belt (1). The two control consoles (2) are respectively located on the lower left and right sides of the conveyor belt (1). The middle part of the upper part of the conveyor belt (1) is provided with a seed picking and placing device (6).

2. The drum-type tray seeder according to claim 1, characterized in that: The pick-and-place component (6) includes a fixed frame three (62) set on the upper part of the conveyor belt (1). Multiple evenly distributed screws two (61) are threaded to the edge of the fixed frame three (62). The screws two (61) are movably connected to the upper part of the conveyor belt (1). A suction roller (64) is rotatably connected to the middle part of the fixed frame three (62). Air pressure switching blocks (67) are set on both the left and right sides of the fixed frame three (62). The air pressure switching blocks (67) abut against the left and right ends of the suction roller (64).

3. The drum-type tray seeder according to claim 2, characterized in that: The air pressure switching block (67) has a negative pressure groove (671) and a positive pressure hole (672) on the side near the suction roller (64). The suction roller (64) has a plurality of evenly distributed through holes (641) at its inner edge. The through holes (641) and the negative pressure groove (671) coincide with the positive pressure hole (672).

4. The drum-type plug seeding machine of claim 2, wherein: The front part of the fixed frame three (62) is provided with a motor two (65), the driving end of the motor two (65) is located at the rear end of the suction roller (64), the upper part of the fixed frame three (62) is provided with an air pump (66), the air pump (66) is connected to the air pressure switching block (67) through a pipe, and the upper end of the screw two (61) is provided with a rotating handle two (63).

5. The drum-type plug seed planter of claim 3, wherein: The outer wall of the suction roller (64) is provided with a plurality of uniformly distributed suction holes (642), and the suction holes (642) and the through holes (641) are interconnected.

6. The drum-type tray seeder according to claim 5, characterized in that: A limiting block (643) is provided inside the suction hole (642), and a limiting plate (644) is provided at the bottom of the limiting block (643).

7. The drum-type tray seeder according to claim 1, characterized in that: The soil covering mechanism (3) includes soil covering belts (32) arranged on the upper left and right sides of the conveyor belt (1). A soil trough (31) is provided on the upper part of the soil covering belt (32), and a triangular protrusion is provided on the outer wall of the soil covering belt (32).

8. The drum-type tray seeder according to claim 1, characterized in that: The scraping mechanism (7) includes two fixed frames (71) located on the upper left side of the conveyor belt (1), and a scraper (72) is bolted between the two fixed frames (71).

9. The drum-type tray seeder according to claim 1, characterized in that: The scraping mechanism (4) includes two fixed frames (41) disposed on the upper part of the conveyor belt (1). A screw (42) is rotatably connected to the middle of the fixed frame (41). A protective shell (43) is threadedly connected to the middle of the screw (42). A cleaning rod (44) is rotatably connected to the middle of the protective shell (43). A motor (45) is disposed on the rear side of the protective shell (43). The driving end of the motor (45) is disposed at the rear end of the cleaning rod (44). A rotating handle (46) is disposed at the upper end of the screw (42).

10. The drum-type tray seeder according to claim 1, characterized in that: The denting mechanism (5) includes two fixed frames (51) disposed on the upper part of the conveyor belt (1), and a denting roller (52) is installed between the two fixed frames (51) by bolts.

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