Seed tray auxiliary device for improving seeding accuracy of seedling raising seeder

Abstract

The utility model discloses a seed tray auxiliary device for improving seeding accuracy of a seedling raising seeder, which relates to the technical field of seedling raising and seeding and comprises a top plate, a bottom plate and L-shaped mounting seats respectively connected to two sides of the bottom plate. The top plate and the bottom plate are respectively provided with a plurality of mounting holes with overlapped projections, and the upper end and the lower end of the telescopic pipe body alignment mechanism are respectively assembled in the corresponding mounting holes. The telescopic driving mechanism drives the sliding pipe to slide upwards in the sleeve, so that the inner cavity of the second conical pipe part covers the outer side of the needle type suction head, seeds are put into the channel of the telescopic pipe body alignment mechanism, interference of external airflow on the seeds in the channel is prevented, and the bottom of the seeds is accurately aligned with a seedling raising tray.

Description

Technical Field

[0001] This utility model relates to the field of seedling raising and sowing technology, specifically to a seed tray auxiliary device for improving the sowing accuracy of seedling raising and sowing machines. Background Technology

[0002] A seedling planter is a mechanized device specifically designed for the seedling raising process of crops such as rice and vegetables. Through automation technology, it enables precise operation of processes such as nutrient soil laying, sowing, and covering with soil. Its core function is to replace traditional manual seedling raising, significantly improving the efficiency and quality of seedling raising and providing standardized seedlings for subsequent mechanized transplanting or transplanting. Through automated operation, the seedling planter can precisely control the sowing amount, row spacing, and plant spacing to ensure uniform seedling distribution and avoid missed or double sowing. Through a needle-type suction head, it can accurately place 1 to 2 seeds per hole to meet the seedling needs of thousands of acres of fields.

[0003] The existing technology suffers from the following problems: When wind speeds are high in the field, seeds are easily affected by wind and drift during the process of being placed from the seeder into the seedling tray holes. This drifting phenomenon is particularly pronounced for lightweight crop seeds such as rapeseed, causing seeds to deviate from the intended hole positions and making precise alignment impossible. Furthermore, the needle-type suction head mounted on the outside of the seeder generates machine vibration during operation. This vibration causes displacement or shaking between the suction needle and the holes in the seedling tray, altering the initial seed placement position and preventing accurate alignment. Under the combined effects of wind speed and vibration, seeds struggle to fall accurately into the seedling tray holes, ultimately leading to uneven seedling distribution during growth. This not only affects the normal growth of subsequent crops but also reduces crop yield and quality. Utility Model Content

[0004] This invention provides a seed tray auxiliary device to improve the sowing accuracy of seedling seeders, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A seed tray auxiliary device for improving the sowing accuracy of a seedling planter includes a top plate, a bottom plate, and L-shaped mounting bases connected to both sides of the bottom plate. The bottom plate has a rectangular array of several telescopic tube alignment mechanisms. The top plate and the bottom plate are respectively provided with several mounting holes with overlapping projections. The upper and lower ends of the telescopic tube alignment mechanisms are respectively assembled into the corresponding mounting holes.

[0007] The telescopic tube alignment mechanism includes a sleeve and a mounting ring connected to its surface. The bottom of the sleeve has a tapered tube portion integrally formed therewith. The mounting ring is located at the bottom of the base plate and is connected to it by screws. A sliding tube is slidably inserted through the inner side of the sleeve. The top of the sliding tube has a tapered tube portion integrally formed therewith. The surface of the sliding tube is connected to the mounting ring, which is located at the bottom of the top plate and is connected to it by screws.

[0008] The top plate is provided with telescopic drive mechanisms on both sides to drive the sliding tube to slide up and down inside the sleeve. When the sliding tube slides down, its bottom does not contact the top of the tapered tube part. When the sliding tube slides up, its bottom is always inside the sleeve.

[0009] It also includes a limiting and blocking mechanism installed at one end of the top plate.

[0010] A further improvement of this utility model is that the limiting and blocking mechanism includes a mounting plate connected to one end of the top plate and two sets of X-shaped hinge components. The bottom ends of the bottom X-shaped hinge components are respectively connected to adjustable baffle components. The mounting plate is symmetrically provided with waist-shaped countersunk grooves. The opposite ends of the two sets of X-shaped hinge components are respectively connected by pins. The top ends of the top X-shaped hinge components are respectively connected to limiting rods. One end of the limiting rods is slidably connected in the waist-shaped countersunk grooves. When the telescopic drive mechanism drives the top plate to move upward, the two sets of X-shaped hinge components extend and the bottom of the adjustable baffle components is located below the bottom of the tapered tube. When the telescopic drive mechanism drives the top plate to move downward, the two sets of X-shaped hinge components shorten.

[0011] A further improvement of the present invention is that the adjustable baffle assembly includes a screw fixedly connected to the bottom end of the bottom X-shaped hinge assembly, a limiting baffle is fitted on the screw, a spring fitted on the screw is provided between the limiting baffle and the X-shaped hinge assembly, and a wing bolt is threaded onto the screw, one end of the wing bolt abutting against the limiting baffle.

[0012] A further improvement of the present invention is that: the two sets of X-shaped hinge components each include symmetrically and cross-arranged hinge arms, a limiting pin is provided at the center of one of the hinge arms, the two hinge arms are connected by the limiting pin, one end of the base plate is connected to a mounting seat, and the mounting seat is connected to the limiting pin of the bottom X-shaped hinge component.

[0013] A further improvement of the present invention is that the telescopic drive mechanism includes an electric push rod and a connecting plate 1 installed on its top. The connecting plate 1 is connected to the top plate. Connecting plates 2 are symmetrically installed on both sides of the top plate. Guide rods are slidably passed through the connecting plates 2. The bottom ends of the guide rods are connected to L-shaped mounting seats.

[0014] A further improvement of this utility model is that the bottom of the tapered tube section is located below the bottom of the L-shaped mounting base.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides a seed tray auxiliary device to improve the sowing accuracy of a seedling planter. The sliding tube is driven to slide upward inside the sleeve by a telescopic drive mechanism, so that the inner cavity of the conical tube part two covers the outside of the needle suction head. This allows the seeds to be placed inside the channel of the telescopic tube body alignment mechanism, thereby preventing external airflow from interfering with the seeds in the channel and ensuring that the bottom of the seeds is accurately aligned with the seedling tray. This lays the foundation for the uniform growth of seedlings and helps to improve the yield and quality of crops.

[0017] 2. This utility model provides a seed tray auxiliary device to improve the sowing accuracy of a seedling planter. While the sliding tube slides upwards within the sleeve, the conical tube section two restricts the swaying amplitude of the needle suction head, reducing the degree of vibration transmitted to the seed dispensing channel. Furthermore, the guide rod guides the up-and-down movement of the top plate, causing it to move linearly along the axis of the guide rod, preventing the top plate from shifting horizontally. This stable movement ensures the stability of the seed dispensing channel, allowing it to maintain a relatively fixed position and orientation even if the needle suction head vibrates. Simultaneously, the limiting and blocking mechanism precisely limits and blocks the seedling tray, ensuring it is in the correct position during sowing, further reducing seed placement deviations caused by vibration. Through the synergistic effect of these features, the device effectively reduces the impact of vibration on seed placement, ensuring that seeds accurately fall into the holes of the seedling tray, improving sowing accuracy and consistency, and benefiting the normal growth and development of crops. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the telescopic drive mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the telescopic tube alignment mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the limiting and blocking mechanism of this utility model;

[0022] Figure 5 for Figure 4 Isometric view on the other side;

[0023] Figure 6 for Figure 4 Enlarged view of point A in the image.

[0024] In the diagram: 1. Top plate; 2. Bottom plate; 3. L-shaped mounting base; 40. Telescopic tube alignment mechanism; 5. Mounting hole; 60. Telescopic drive mechanism; 70. Limiting and blocking mechanism;

[0025] 41. Sleeve; 42. Mounting ring one; 43. Tapered tube section one; 44. Sliding tube; 45. Tapered tube section two; 46. Mounting ring two;

[0026] 61. Electric push rod; 62. Connecting plate one; 63. Connecting plate two; 64. Guide rod;

[0027] 71. Mounting plate; 72. X-shaped hinge assembly; 73. Adjustable baffle assembly; 74. Slotted countersunk groove; 75. Limiting rod; 76. Mounting base;

[0028] 721. Articulated arm; 722. Limit pin;

[0029] 731. Screw; 732. Limiting baffle; 733. Spring; 734. Wing bolt. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to embodiments:

[0031] Example 1

[0032] like Figure 1-6As shown, this utility model provides a seed tray auxiliary device to improve the sowing accuracy of a seedling planter, including a top plate 1, a bottom plate 2, and L-shaped mounting seats 3 connected to both sides of the bottom plate 2. The bottom plate 2 has a rectangular array of several telescopic tube alignment mechanisms 40. The top plate 1 and bottom plate 2 each have several mounting holes 5 with overlapping projections. The upper and lower ends of the telescopic tube alignment mechanisms 40 are respectively fitted into the corresponding mounting holes 5. Each telescopic tube alignment mechanism 40 includes a sleeve 41 and a mounting ring 42 connected to its surface. The bottom of the sleeve 41 has an integrally formed tapered tube section 43, the bottom of which is located below the bottom of the L-shaped mounting seat 3. The mounting ring 42 is located at the bottom of the base plate 2 and is connected to it by screws. The inner side of the sleeve 41 is slidably provided with a sliding tube 44. The top of the sliding tube 44 is provided with a tapered tube part 45 integrally formed with it. The surface of the sliding tube 44 is connected with a mounting ring 46. The mounting ring 46 is located at the bottom of the top plate 1 and is connected to it by screws. The top plate 1 is provided with telescopic drive mechanisms 60 on both sides to drive the sliding tube 44 to slide up and down in the sleeve 41. After the sliding tube 44 slides down, its bottom does not contact the top of the tapered tube part 43. After the sliding tube 44 slides up, its bottom is always inside the sleeve 41. It also includes a limiting and blocking mechanism 70 provided at one end of the top plate 1.

[0033] Furthermore, the L-shaped mounting base 3 is installed on the frame of the seeder to fix the base plate 2. The number of telescopic tube alignment mechanisms 40 matches the number of holes in the seedling tray. The inner diameter of the sliding tube 44 is larger than the outer diameter of the needle suction head, and the bottom end of the tapered tube section 43 is positioned close to the seedling tray but not exceeding the top of the seedling tray. The limiting and blocking mechanism 70 is positioned in the direction in which the seedling tray is to move, so that the needle suction head can release seeds. The sleeve 41 provides a sliding track for the sliding tube 44 and is connected to the tapered tube section 43 to form a seed release channel. The tapered tube section 43 helps guide the seeds smoothly into the seedling tray holes, reducing seed drift and deviation during release, and enabling the seeds to fall more accurately into the seedling tray holes. The sliding tube 44 slides up and down inside the sleeve 41, changing the length and position of the seed dispensing channel. This, combined with the telescopic drive mechanism 60, enables precise control of seed dispensing. The tapered tube section 45 guides the seeds into the sliding tube 44, reducing jamming and blockage when the seeds enter the channel. The telescopic drive mechanism 60 drives the sliding tube 44 to slide upward inside the sleeve 41, so that the inner cavity of the tapered tube section 45 covers the outside of the needle suction head. This ensures that the seeds are accurately dispensed into the channel of the telescopic tube alignment mechanism 40, preventing external airflow from affecting the seeds and preventing vibration from causing displacement between the suction needle and the holes in the seedling tray. This ensures that the seeds fall accurately into the holes of the seedling tray according to the predetermined path, improving the accuracy and consistency of sowing.

[0034] Example 2

[0035] like Figure 1-6 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the limiting and blocking mechanism 70 includes a mounting plate 71 connected to one end of the top plate 1 and two sets of X-shaped hinge components 72. Each of the two sets of X-shaped hinge components 72 includes symmetrically arranged and intersecting hinge arms 721. A limiting pin 722 is provided at the center of one hinge arm 721. The two hinge arms 721 are connected by the limiting pin 722. One end of the bottom plate 2 is connected to a mounting base 76, which is connected to the limiting pin 722 of the bottom X-shaped hinge component 72. Adjustable baffle components 73 are connected to the bottom ends of the bottom X-shaped hinge components 72. A waist-shaped countersunk groove 74 is symmetrically provided on the mounting plate 71. The opposite ends of the two sets of X-shaped hinge components 72 are connected by pins. The top X-shaped hinge component 72... The top of each component is connected to a limiting rod 75. One end of the limiting rod 75 is slidably connected in the waist-shaped countersunk groove 74. When the telescopic drive mechanism 60 drives the top plate 1 to move upward, the two sets of X-shaped hinge components 72 extend and the bottom of the adjustable baffle assembly 73 is located below the bottom of the tapered tube section 43. When the telescopic drive mechanism 60 drives the top plate 1 to move downward, the two sets of X-shaped hinge components 72 shorten. The adjustable baffle assembly 73 includes a screw 731 fixedly connected to the bottom end of the bottom X-shaped hinge component 72. A limiting baffle 732 is fitted on the screw 731. A spring 733 fitted on the screw 731 is provided between the limiting baffle 732 and the X-shaped hinge component 72. A wing bolt 734 is threaded on the screw 731. One end of the wing bolt 734 is in contact with the limiting baffle 732.

[0036] Furthermore, when the telescopic drive mechanism 60 drives the top plate 1 to move upward, the two sets of X-shaped hinge components 72 extend respectively. At this time, the bottom of the limiting baffle 732 is located below the top of the seedling tray and does not contact the conveyor belt to ensure normal transport of the seedling tray. The hinge arms 721 form a telescopic structure through mutual hinges, which can extend or shorten according to the up and down movement of the top plate 1, thereby driving the adjustable baffle component 73 to move, which plays a limiting and blocking role on the moving seedling tray, so as to ensure that the top plate 1 cooperates with the needle suction head when it moves upward, so that the device can complete the seed dispensing in a predetermined manner, thereby improving the quality and efficiency of sowing. In addition, by rotating the butterfly bolt 734, the position of the limiting baffle 732 on the screw 731 can be adjusted to ensure that the hole position of the seedling tray corresponds one-to-one with the bottom of the tapered tube section 43 at the beginning of the equipment, so that the device can be adjusted according to the actual situation to meet the requirements of different sowing environments and seedling tray hole positions.

[0037] Example 3

[0038] like Figure 1-6As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the telescopic drive mechanism 60 includes an electric push rod 61 and a connecting plate 62 installed on its top. The connecting plate 62 is connected to the top plate 1. Connecting plates 63 are symmetrically installed on both sides of the top plate 1. Guide rods 64 are slidably passed through the connecting plates 63. The bottom ends of the guide rods 64 are connected to the L-shaped mounting bases 3.

[0039] Furthermore, electric push rods 61 are installed on the sides of the seeder frame. The electric push rods 61 provide driving force for the up-and-down movement of the top plate 1, so that the top plate 1 synchronously drives the sliding tube 44 to move up and down, thereby allowing it to slide up and down within the sleeve 41 to cooperate with the needle suction head for sowing operations. During this process, the guide rod 64 provides guidance for the up-and-down movement of the top plate 1, making it move in a straight line along the axis of the guide rod 64, preventing the top plate 1 from shifting in the horizontal direction, so that the seed dispensing channel can always remain stable, ensuring that the seeds can accurately fall into the seedling tray holes, and enhancing the structural stability of the device. In addition, the telescopic drive mechanism 60 also drives the top plate 1 to move up and down, with two sets of X-shaped hinge components 72 moving in the opposite direction to the top plate 1, thereby adjusting its extension and retraction state.

[0040] The working principle of the seed tray auxiliary device that improves the sowing accuracy of the seedling planter will be explained in detail below.

[0041] like Figure 1-6 As shown, the seedling tray is placed on the conveyor belt of the seeder. The conveyor belt drives the seedling tray to move towards the limiting and blocking mechanism 70. When the seedling tray is about to move below the bottom plate 2, the electric push rod 61 drives the top plate 1 to move upward. The top plate 1 simultaneously drives the sliding tube 44 to move upward, so that it also slides upward in the sleeve 41 and meets the needle suction head to cover it. At this time, the two sets of X-shaped hinge components 72 extend according to the movement of the top plate 1 and drive the limiting baffle 732 to move downward, limiting and blocking the seedling tray, so that the seedling tray stops moving and is accurately positioned so that the needle suction head can perform the seed release operation. The needle suction head releases the seeds into the channel of the telescopic tube alignment mechanism 40. Due to the guiding effect of the conical tube section 45, the seeds can smoothly enter the sliding tube 44, reducing jamming and blockage. Then, the seeds continue to move downward in the channel, passing through the sleeve 41 and the conical tube section 43, accurately guiding the seeds into the seedling tray holes. After the seeds are placed, the electric push rod 61 drives the top plate 1 to move downward. The top plate 1 drives the sliding tube 44 to slide downward in the sleeve 41. The two sets of X-shaped hinge components 72 shorten respectively. The conveyor belt on the seeder continues to drive the seedling tray to move, transporting the seedling tray that has been sown out. At the same time, the next seedling tray to be sown is transported to the limiting and blocking mechanism 70. The above operation steps are repeated for the next round of sowing.

[0042] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A seed tray auxiliary device for improving the sowing accuracy of a seedling seeder, characterized in that: It includes a top plate (1), a bottom plate (2) and L-shaped mounting bases (3) connected to its two sides respectively. The bottom plate (2) has a rectangular array of several telescopic tube alignment mechanisms (40). The top plate (1) and the bottom plate (2) are respectively provided with several mounting holes (5) with overlapping projections. The upper and lower ends of the telescopic tube alignment mechanism (40) are respectively assembled in the corresponding mounting holes (5). The telescopic tube alignment mechanism (40) includes a sleeve (41) and a mounting ring (42) connected to its surface. The bottom of the sleeve (41) is provided with a tapered tube part (43) integrally formed therewith. The mounting ring (42) is located at the bottom of the base plate (2) and is connected to it by screws. A sliding tube (44) is slidably passed through the inner side of the sleeve (41). The top of the sliding tube (44) is provided with a tapered tube part (45) integrally formed therewith. The surface of the sliding tube (44) is connected to the mounting ring (46). The mounting ring (46) is located at the bottom of the top plate (1) and is connected to it by screws. The top plate (1) is provided with telescopic drive mechanism (60) on both sides to drive the sliding tube (44) to slide up and down in the sleeve (41). After the sliding tube (44) slides down, its bottom does not contact the top of the tapered tube part (43). After the sliding tube (44) slides up, its bottom is always inside the sleeve (41). It also includes a limiting barrier mechanism (70) set at one end of the top plate (1).

2. The seed tray auxiliary device for improving the sowing accuracy of a seedling planter according to claim 1, characterized in that: The limiting and blocking mechanism (70) includes a mounting plate (71) connected to one end of the top plate (1) and two sets of X-shaped hinge assemblies (72). The bottom ends of the bottom X-shaped hinge assemblies (72) are respectively connected to adjustable baffle assemblies (73). The mounting plate (71) is symmetrically provided with waist-shaped countersunk grooves (74). The opposite ends of the two sets of X-shaped hinge assemblies (72) are respectively connected by pins. The top ends of the top X-shaped hinge assemblies (72) are respectively connected to adjustable baffle assemblies (73). Position rod (75), one end of which is slidably connected in waist-shaped countersunk groove (74). When the telescopic drive mechanism (60) drives the top plate (1) to move upward, the two sets of X-shaped hinge components (72) extend respectively and the bottom of the adjustable baffle assembly (73) is located below the bottom of the tapered tube section (43). When the telescopic drive mechanism (60) drives the top plate (1) to move downward, the two sets of X-shaped hinge components (72) shorten respectively.

3. The seed tray auxiliary device for improving the sowing accuracy of a seedling planter according to claim 2, characterized in that: The adjustable baffle assembly (73) includes a screw (731) fixedly connected to the bottom end of the bottom X-shaped hinge assembly (72). A limit baffle (732) is fitted on the screw (731). A spring (733) fitted on the screw (731) is provided between the limit baffle (732) and the X-shaped hinge assembly (72). A wing bolt (734) is threaded on the screw (731). One end of the wing bolt (734) is in contact with the limit baffle (732).

4. The seed tray auxiliary device for improving the sowing accuracy of a seedling planter according to claim 2, characterized in that: The two sets of X-shaped hinge components (72) each include symmetrically arranged and cross-arranged hinge arms (721), one of which has a limiting pin (722) at its center, and the two hinge arms (721) are connected by the limiting pin (722). One end of the base plate (2) is connected to a mounting base (76), and the mounting base (76) is connected to the limiting pin (722) of the bottom X-shaped hinge component (72).

5. The seed tray auxiliary device for improving the sowing accuracy of a seedling planter according to claim 1, characterized in that: The telescopic drive mechanism (60) includes an electric push rod (61) and a connecting plate (62) mounted on its top. The connecting plate (62) is connected to the top plate (1). Connecting plates (63) are symmetrically mounted on both sides of the top plate (1). Guide rods (64) are slidably passed through the connecting plates (63). The bottom ends of the guide rods (64) are connected to the L-shaped mounting base (3).

6. The seed tray auxiliary device for improving the sowing accuracy of a seedling planter according to claim 1, characterized in that: The bottom of the tapered tube section (43) is located below the bottom of the L-shaped mounting base (3).

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