Automatic sowing equipment for planting coreopsis tinctoria

Abstract

The invention belongs to the technical field of seeding equipment, and particularly relates to automatic seeding equipment for planting two-color coreopsis tinctoria, the automatic seeding equipment comprises a supporting plate and a seed storage box, the supporting plate is provided with a blanking port, the seed storage box is arranged on the upper side of the blanking port, the bottom wall of the seed storage box is an opening, and a diffusion unit is arranged between the supporting plate and the seed storage box; the diffusion unit comprises an enclosure shell, a first diffusion screen and a reciprocating mechanism, the enclosure shell is a vertically-through shell and used for communicating the discharging opening with the opening in the bottom wall of the seed storage box, and the enclosure shell is in sliding connection with the supporting plate; the first diffusion screen is arranged in the enclosure shell, and the open end of the seed storage box is attached to the first diffusion screen; the output end of the reciprocating mechanism is connected with the enclosure shell, and the reciprocating mechanism is used for indirectly achieving linear reciprocating swing of the first diffusion screen by driving the enclosure shell. The device can effectively reduce the influence of environmental wind speed on seed falling in the seed sowing process, improve the sowing uniformity of coreopsis tinctoria seeds and the like, and ensure the uniformity of the sowing density.

Description

Technical Field

[0001] The invention belongs to the technical field of sowing equipment, and in particular relates to automatic sowing equipment for planting two-color coreopsis. Background Art

[0002] Xinjiang is the main production area of ​​Coreopsis bicolor. The Coreopsis bicolor planted in the high-altitude mountainous areas of Hotan, Xinjiang is recognized as the best quality. Coreopsis bicolor is brightly colored and contains rich nutrients, such as flavonoids, chlorogenic acid compounds, etc. It can be antioxidant, anti-inflammatory, clear away heat and toxins, remove dampness and toxins, improve eyesight, etc. It also has a certain effect on relieving symptoms such as red and swollen eyes, sores and swelling. Modern pharmacological studies have shown that long-term drinking of snow chrysanthemum tea can regulate blood pressure, blood lipids and blood sugar, and has a positive effect on the prevention of cardiovascular diseases and diabetes. It is a medicinal and edible raw material with great development potential. In recent years, due to the urgent need to develop the important ornamental and medicinal value of Coreopsis bicolor, the planting area has also expanded year by year.

[0003] After organizing students to conduct in-depth investigations and research, it was found that most planting areas currently use commonly used sowing equipment in agriculture for the sowing of Coreopsis bicolor. Based on the recording and tracking of the sowing process, students found that although the use of agricultural sowing equipment can improve sowing efficiency and save manpower, since the seeds of Coreopsis bicolor are relatively small and light, general sowing equipment mostly scatters the seeds from the discharge port in order to improve the uniformity of sowing. When this type of sowing equipment is used for seeds such as Coreopsis bicolor, it is difficult to control the falling density of seeds during the sowing process, and it is easily affected by wind speed, resulting in a sowing density that is too concentrated or sparse. It is difficult to ensure the uniformity of sowing of Coreopsis bicolor seeds, thus affecting the overall growth of seedlings. For example, the Chinese invention patent with publication number CN108583892B provides a sowing device for an unmanned aerial planter, including a guide disk, a rotating disk, a driving motor for driving the rotating disk to rotate, and a plurality of connecting rods. A cavity for accommodating the rotating disk is provided in the guide disk, a notch is provided on one side of the guide disk, the notch is connected to the cavity, an inlet for seeds to fall into the cavity is provided on the guide disk, the inlet is located on the side of the guide disk away from the notch, and a plurality of throwing disks for rotating and transporting seeds are evenly arranged on the circumference of the rotating disk. Compared with the prior art, the present invention obtains different linear velocities by converting angular velocity and radius to adjust the distance of the seeds thrown out. However, for seeds with light weight and small size such as two-color coreopsis, the thrown seeds will be affected by the environmental wind speed and the wind force of the propeller of the unmanned aerial vehicle, and it is difficult to reach the designated area. The seeds will have different distribution densities after landing, and the sowing is uneven. Another example is a Chinese patent with publication number CN220653996U, which discloses a sowing device, including a frame, a sowing plate, a cover plate, a feeding hopper, a spreading mechanism, a first feeding plate, a second feeding plate and an abutting mechanism, wherein the spreading mechanism includes a rotating column, a partition plate and a rotating disk; the rotating column is rotatably arranged on the sowing plate, and the rotating disk is arranged on the rotating column; there are multiple partition plates, one end of each of the multiple partition plates is arranged on the rotating column, and the multiple partition plates are evenly distributed along the outer side of the rotating column. When sowing seeds, the seeds are driven to move by the rotation of the partition plate and the rotating disk, and move toward the edge of the sowing plate under the action of centrifugal force. When the seeds move to the discharge port, the seeds lose the limit of the sowing plate, so that the seeds can fly out from the discharge port and be scattered in a fan shape. This sowing method uses centrifugal force to throw seeds out from the discharge port, which is similar to the sowing method disclosed in patent CN108583892B. It can effectively spread seeds with larger mass, but for seeds with lighter mass and smaller size such as two-color coreopsis, they are easily affected by the environmental wind speed after being thrown out, resulting in higher or lower local density and uneven sowing. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide an automatic sowing equipment for planting two-color Coreopsis, which can effectively reduce the influence of environmental wind speed on the falling of seeds during the seed sowing process, improve the sowing uniformity of seed types such as two-color Coreopsis, and ensure the uniformity of sowing density.

[0005] The technical solution of the present invention is:

[0006] An automatic sowing device for planting two-color coreopsis, comprising a support plate and a seed storage box, wherein a feeding opening is provided on the support plate, the seed storage box is arranged on the upper side of the feeding opening, and the bottom wall of the seed storage box opposite to the feeding opening is an opening, and a diffusion unit is arranged between the support plate and the seed storage box, and the diffusion unit comprises:

[0007] The enclosure shell is a shell that penetrates from top to bottom, and is used to connect the drop opening with the bottom wall opening of the seed storage box, and the enclosure shell is slidably connected with the support plate;

[0008] A first diffusion screen is arranged in a wave shape in the enclosure shell, and the opening end of the seed storage box is attached to the first diffusion screen;

[0009] A reciprocating mechanism, whose output end is connected to the enclosure shell, is used to indirectly realize the linear reciprocating swing of the first diffusion screen by driving the enclosure shell, and the wavy direction of the first diffusion screen is at an angle with the direction of its linear reciprocating swing.

[0010] Preferably, a second diffusion screen is further provided in the enclosure shell, the second diffusion screen is located at the bottom of the first diffusion screen and there is a distance between the two, and the meshes on the second diffusion screen are staggered with the meshes on the first diffusion screen.

[0011] Preferably, the first diffusion screen and the second diffusion screen are both wavy, and the wave directions of the two are arranged alternately, and the meshes on the first diffusion screen and the second diffusion screen are located in the concave part of the wave.

[0012] Preferably, the reciprocating mechanism comprises:

[0013] Two limit plates are arranged on opposite sides of the blanking opening, and opposite side walls of the enclosure shell are respectively fitted with one of the limit plates, and a through groove is formed on the limit plate;

[0014] Two movable rods, corresponding to the two limit plates one by one, one end of the movable rod passes through the through slot on the limit plate and is fixed to the enclosure shell, and an elastic member is provided between the movable rod and the side wall of the through slot;

[0015] A connecting plate is disposed on one side of the sliding direction of the enclosure shell, and one end of the two movable rods away from the limiting plate is fixedly connected to the connecting plate;

[0016] The first eccentric wheel is rotatably connected to the support plate via a rotating shaft, the circumferential side wall of the first eccentric wheel abuts against the connecting plate, and one end of the rotating shaft is connected to a driver.

[0017] Preferably, the lower end of the rotating shaft passes through the support plate and is fitted with an incomplete gear, a rectangular movable frame is fitted on the outside of the incomplete gear, the movable frame is slidably connected to the bottom wall of the support plate, and a rack is fixedly connected to the two opposite inner walls of the movable frame respectively, the two racks are alternately meshed with the incomplete gear, the movable frame is detachably connected to a horizontal supporting frame, the supporting frame is located below the blanking port, and a plurality of rake teeth are evenly distributed on the bottom of the supporting frame.

[0018] Preferably, a push rod is also fixedly mounted on the rotating shaft, and push blocks are respectively arranged on both sides of the push rod, and the side walls of the two push blocks facing the push rod are inclined, and the inclined directions of the inclined surfaces of the two push blocks are opposite, and an amplifying rod is fixedly connected to the side of each push block away from the push rod, and the end of the amplifying rod away from the push block is placed on the side of the limit plate, and a stabilizing plate is mounted on the amplifying rod, and the lower end of the stabilizing plate is fixedly connected to the supporting plate, and a first spring is arranged between the stabilizing plate and the push block, and the first spring is mounted on the amplifying rod.

[0019] Preferably, one end of the amplifying rod away from the pushing block is fixedly connected with a metal impact block.

[0020] Preferably, a second eccentric wheel is also mounted on the rotating shaft, a reciprocating rod is abutted on one side of the second eccentric wheel, an end of the reciprocating rod away from the second eccentric wheel penetrates into the seed storage box and is fixedly connected with a plurality of material removal rods, a limit block is mounted on the reciprocating rod, a second spring is provided between the limit block and the outer wall of the seed storage box, and the second spring is mounted on the reciprocating rod.

[0021] Preferably, the seed storage box is hung on the two limit plates, the limit plates are provided with hanging grooves, the bottom of the hanging grooves are covered with elastic pads, and the seed storage box is fixedly connected with a hanging block adapted to the hanging grooves, and the hanging block is inserted into the hanging grooves and abuts against the elastic pads.

[0022] Compared with the prior art, the automatic sowing device for planting two-color coreopsis of the present invention has the following beneficial effects:

[0023] The device utilizes the setting height of the support plate to effectively change the distance between the drop port and the ground, thereby reducing the height of the seed falling and reducing the influence of wind speed, and then utilizes the reciprocating mechanism to drive the reciprocating motion of the enclosure shell to indirectly realize the reciprocating motion of the first diffusion screen, so that the seeds in the seed storage box can pass through the restriction of the first diffusion screen and fall evenly. At the same time, under the protection of the enclosure shell, it can block the influence of the environmental wind speed on the process of seeds falling from the seed storage box to the drop port, thereby changing the traditional broadcasting sowing method, so that types of seeds such as two-color Coreopsis can better maintain a state of uniform seed diffusion during the seed sowing and landing process, and the uniformity of sowing density is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of the overall structure in an embodiment of the present invention;

[0025] Figure 2 A top view of the overall structure in an embodiment of the present invention;

[0026] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0027] Figure 4 for Figure 2 Cross-sectional view of the middle BB;

[0028] Figure 5 This is a schematic diagram of the internal structure of the enclosure shell in an embodiment of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the reciprocating mechanism in an embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the distribution of rake teeth in an embodiment of the present invention;

[0031] Figure 8 It is a partial structural schematic diagram of an embodiment of the present invention;

[0032] Fig. 9 This is a schematic diagram of the structure of a seed storage box in an embodiment of the present invention;

[0033] Fig.10 for Figure 6 Schematic diagram of the enlarged structure at C in the middle;

[0034] Fig.11 for Figure 3 Schematic diagram of the enlarged structure at D in the middle.

[0035] Description of reference numerals:

[0036] 1. Support plate; 2. Seed storage box; 3. Dropping port; 4. Enclosing shell; 5. First diffusion screen; 6. Reciprocating mechanism; 61. Limiting plate; 62. Movable rod; 63. Connecting plate; 64. First eccentric wheel; 65. Through slot; 66. Elastic member; 67. Rotating shaft; 68. Driver; 7. Second diffusion screen; 8. Incomplete gear; 9. Movable frame; 10. Rack; 11. Carrying frame; 12. Rake teeth; 13. Push rod; 14. Push block; 15. Amplifying rod; 16. Stabilizing plate; 17. First spring; 18. Metal impact block; 19. Second eccentric wheel; 20. Reciprocating rod; 21. Limiting block; 22. Second spring; 23. Hanging slot; 24. Elastic pad; 25. Hanging block; 26. Wind shield; 27. Active bevel gear; 28. Driven bevel gear; 29. ​​Feeding rod. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0039] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] See also Figures 1 to 11As shown, in order to effectively reduce the impact of environmental wind speed on seed falling during seed sowing, improve the sowing uniformity of seed types such as two-color Coreopsis, and ensure the uniformity of sowing density. The present embodiment provides an automatic sowing device for planting two-color coreopsis, including a support plate 1 and a seed storage box 2, wherein a feeding port 3 is provided on the support plate 1, tires are provided at the four corners of the support plate 1, the seed storage box 2 is provided on the upper side of the feeding port 3, and the bottom wall of the seed storage box 2 opposite to the feeding port 3 is an opening, and a diffusion unit is provided between the support plate 1 and the seed storage box 2, the diffusion unit includes an enclosure shell 4, a first diffusion screen 5 and a reciprocating mechanism 6, the enclosure shell 4 is a shell through-through from top to bottom, used for connecting the feeding port 3 with the bottom wall opening of the seed storage box 2, and the enclosure shell 4 is slidably connected to the support plate 1; the first diffusion screen 5 is arranged in a wave shape in the enclosure shell 4, and the open end of the seed storage box 2 is attached to the first diffusion screen 5; the output end of the reciprocating mechanism 6 is connected to the enclosure shell 4, and the reciprocating mechanism 6 is used to indirectly realize the linear reciprocating swing of the first diffusion screen 5 by driving the enclosure shell 4, and the wave-shaped direction of the first diffusion screen 5 is provided with an angle with the direction of its linear reciprocating swing. Preferably, the opening of the seed storage box 2 is always in the area where the first diffusion screen 5 is located during the reciprocating movement of the first diffusion screen 5. In addition, the device is also provided with a corresponding soil covering mechanism (not shown in the figure), which can evenly cover the soil on the side or front side of the support plate 1 in the sowing area.

[0041] Specifically, when in use, the support plate 1 is connected to the rear of the mobile device so that the support plate 1 moves as a whole through the tire driving device. During the sowing process, the height of the support plate 1 can effectively change the distance between the drop port 3 and the ground, thereby reducing the height of the seed drop and reducing the influence of the wind speed. Then, the reciprocating mechanism 6 is used to drive the enclosure shell 4 to reciprocate to indirectly realize the reciprocating motion of the first diffusion screen 5, so that the seeds in the seed storage box 2 can be restricted to fall evenly through the first diffusion screen 5. At the same time, under the protection of the enclosure shell 4, the influence of the environmental wind speed on the seed drop can be blocked, so that seeds such as two-color coreopsis seeds can maintain a uniform diffusion state during the seed sowing and landing process, and the uniformity of the sowing density is better.

[0042] See also Figures 3 to 5 As shown, further, in order to ensure the uniformity of sowing and improve the uniformity of sowing density. A second diffusion screen 7 is also provided in the enclosure shell 4. The second diffusion screen 7 is located at the bottom of the first diffusion screen 5 and there is a spacing between the two. The mesh on the second diffusion screen 7 is staggered with the mesh of the first diffusion screen 5. And further, the first diffusion screen 5 and the second diffusion screen 7 are all set to be wavy, and the wave directions of the two are staggered. Preferably, the wave directions of the first diffusion screen 5 and the second diffusion screen 7 are vertically arranged, and the meshes on the first diffusion screen 5 and the second diffusion screen 7 are located in the concave part of the wave.

[0043] When in use, firstly, the staggered arrangement of the first diffusion screen 5 and the second diffusion screen 7 is utilized, so that when the seeds fall from the first diffusion net to the second diffusion net, under the tendency of the reciprocating mechanism 6, the seeds are dispersed twice before hitting the ground, thereby improving the uniformity of seed dispersion. The first diffusion screen 5 and the second diffusion screen 7 are utilized to utilize a wavy structure in which the directions are staggered with each other, which can effectively provide guidance for the path of the seeds during the seed dispersion process, so that the seeds show a criss-cross diffusion tendency on the first diffusion screen 5 and the second diffusion net, thereby ensuring that the seeds can maintain sufficient uniformity after falling from the second diffusion net, thereby improving the uniformity of the sowing density.

[0044] See also Figure 1 and Figure 6 As shown, further, in order to ensure the uniformity of sowing and improve the uniformity of sowing density, the reciprocating mechanism 6 includes two one-to-one corresponding limit plates 61 and a movable rod 62, and also includes a connecting plate 63, a first eccentric wheel 64 and a driver 68. The two limit plates 61 are arranged on the opposite sides of the blanking port 3, and the opposite side walls of the enclosure shell 4 are respectively fitted with a limit plate 61, and a through groove 65 is opened on the limit plate 61; one end of the movable rod 62 passes through the through groove 65 on the corresponding limit plate 61 and is fixed to the enclosure shell 4, and an elastic member 66 is provided between the movable rod 62 and the side wall of the through groove 65, and the elastic member 66 is preferably a tension spring; the connecting plate 63 is placed on one side of the sliding direction of the enclosure shell 4, and one end of the two movable rods 62 away from the limit plate 61 is fixedly connected to the connecting plate 63; the first eccentric wheel 64 is rotatably connected to the support plate 1 through a rotating shaft 67, the circumferential side wall of the first eccentric wheel 64 abuts against the connecting plate 63, and one end of the rotating shaft 67 is connected to the output end of the driver 68, and the driver 68 is preferably a motor.

[0045] When in use, the driver 68 provides power for the rotating shaft 67, so that the rotating shaft 67 drives the first eccentric wheel 64 to rotate. During the rotation process of the first eccentric wheel 64, the side away from the rotating shaft 67 will push the connecting plate 63 to move, so that the connecting plate 63 drives the enclosure shell 4 to move to the right through the movable rod 62. When the side of the first eccentric wheel 64 close to the rotating shaft 67 rotates to the side of the connecting plate 63, under the elastic reset action of the elastic member 66, the movable rod 62 drives the enclosure shell 4 to move to the left. In this way, under the continuous rotation of the first eccentric wheel 64 and the cooperation of the elastic member 66, the enclosure shell 4 can be reciprocated left and right, so that the first diffusion screen 5 and the second diffusion screen 7 maintain reciprocating motion, so that the seeds can be fully and evenly dispersed, ensuring that the sowing density after the seeds fall to the ground can be sufficiently consistent.

[0046] In addition, in consideration of the cost, the rotation of the driving shaft 67 can be driven by the tire at the bottom of the support plate 1, see Figure 6As shown, a connecting shaft is arranged between two tires opposite to each other at the bottom of the support plate 1, a driving bevel gear 27 is mounted on the connecting shaft, and a driven bevel gear 28 is mounted on the rotating shaft 67, and the driving bevel gear 27 and the driven bevel gear 28 are kept in meshing state. At this time, the connecting shaft is driven to rotate during the movement of the tire, and the connecting shaft drives the driving bevel gear 27 to rotate. The driving bevel gear 27 is meshed with the driven bevel gear 28 to realize the rotation of the rotating shaft 67, so that the rotating shaft 67 drives the first eccentric wheel 64 to rotate, and indirectly realizes the reciprocating motion of the first diffusion screen 5 and the second diffusion screen 7. At the same time, in order to increase the frequency of the reciprocating motion of the first diffusion screen 5 and the second diffusion screen 7, it can be achieved by changing the gear ratio of the driving bevel gear 27 and the driven bevel gear 28.

[0047] See also Figure 7 As shown, further, in order to ensure the uniformity of sowing and improve the uniformity of sowing density. The lower end of the rotating shaft 67 passes through the support plate 1 and is fitted with an incomplete gear 8. A rectangular movable frame 9 is fitted on the outside of the incomplete gear 8. The movable frame 9 is slidably connected to the bottom wall of the support plate 1. A rack 10 is fixedly connected to the two opposite inner walls of the movable frame 9 respectively. The two racks 10 are alternately meshed with the incomplete gear 8. The movable frame 9 is detachably connected to a horizontal bearing frame 11. The bearing frame 11 is located below the drop port 3, and a plurality of rake teeth 12 are evenly distributed at the bottom of the bearing frame 11. The preferred movable frame 9 is connected to the bearing frame 11 by a telescopic structure. The telescopic structure is preferably set as a plate body with a plurality of screw holes arranged in the vertical direction. The plate body is inserted through the side wall of the bearing frame 11 and connected to a corresponding screw hole by bolts, so that the height of the rake teeth 12 can be adjusted, which is convenient for adjusting the depth of the rake teeth 12 entering the soil, so as to cover soils of different thicknesses, and has better adaptability.

[0048] When in use, the rotating shaft 67 drives the incomplete gear 8 to rotate, so that the incomplete gear 8 alternately meshes with the two racks 10, thereby realizing the reciprocating motion of the movable frame 9, and then the movable frame 9 drives the rake teeth 12 to realize reciprocating motion through the supporting frame 11, so that the movement direction of the rake teeth 12 is perpendicular to the wave direction of the second diffusion screen 7, that is, the rake teeth 12 can longitudinally scatter the seeds falling from the second screen, so that the seeds falling on the ground are further evenly dispersed, and with the cooperation of the rake teeth 12, the seeds can be initially allowed to enter the soil in time, avoiding the influence of environmental wind on seed distribution and improving the uniformity of sowing density.

[0049] See also Figure 1 , Figure 8 and Fig. 9As shown, further, in order to ensure the uniformity of sowing and improve the uniformity of sowing density. A push rod 13 is also fixedly mounted on the rotating shaft 67, and the distances between the two ends of the push rod 13 and the rotating shaft 67 are different. Push blocks 14 are respectively arranged on both sides of the push rod 13. The side walls of the two push blocks 14 facing the push rod 13 are inclined, and the inclined directions of the inclined surfaces of the two push blocks 14 are opposite. An amplifying rod 15 is fixedly connected to the side of each push block 14 away from the push rod 13. The end of the amplifying rod 15 away from the push block 14 is placed on the side of the limit plate 61. A stabilizing plate 16 is mounted on the amplifying rod 15. The lower end of the stabilizing plate 16 is fixedly connected to the support plate 1. A first spring 17 is arranged between the stabilizing plate 16 and the push block 14, and the first spring 17 is mounted on the amplifying rod 15. A metal impact block 18 is fixedly connected to the end of the amplifying rod 15 away from the push block 14. The metal impact block 18 is made of steel or aluminum.

[0050] When in use, the rotating shaft 67 drives the push rod 13 to rotate. After the push rod 13 contacts the inclined surface of the push block 14, the push block 14 will be pushed to move in the direction away from the rotating shaft 67 under the continuous rotation of the push rod 13. At this time, the first spring 17 is in a compressed state. Then, when the push rod 13 leaves the inclined surface of the push block 14, the pressure on the push block 14 is released. At this time, under the resetting action of the first spring 17, the magnifying rod 15 is quickly reset, so that the magnifying rod 15 collides with the limit plate 61 to generate vibration, and further through the action of the metal impact block 18 and the magnifying rod 15, the vibration effect is amplified, and then transmitted to the seed storage box 2 and the enclosure shell 4 through the vibration, so that the seeds can fall fully, effectively reducing the probability of being blocked, thereby ensuring the uniformity of seed falling, that is, improving the uniformity of sowing, avoiding the phenomenon of missed sowing, and improving the uniformity of sowing density.

[0051] See also Figure 3 and Fig.11 As shown, further, in order to ensure the uniformity of sowing and improve the uniformity of sowing density. The seed storage box 2 is hung on two limit plates 61, and a hanging groove 23 is opened on the limit plate 61. The bottom of the hanging groove 23 is paved with an elastic pad 24, and the elastic pad 24 is preferably made of rubber material. A hanging block 25 adapted to the hanging groove 23 is fixedly connected to the seed storage box 2, and the hanging block 25 is inserted into the hanging groove 23 and abuts against the elastic pad 24. Utilizing the elastic pad 24 in the hanging groove 23, when the metal impact block 18 impacts the limit plate 61 to generate vibration, the elastic pad 24 will utilize the elastic effect to enhance the vibration effect of the seed storage box 2. This allows the seeds to fall fully.

[0052] See also Figures 6 to 10As shown, further, in order to ensure the uniformity of sowing and improve the uniformity of sowing density, the rotating shaft 67 is also equipped with a second eccentric wheel 19, and a reciprocating rod 20 is abutted on one side of the second eccentric wheel 19. The end of the reciprocating rod 20 away from the second eccentric wheel 19 penetrates into the seed storage box 2 and is fixedly connected with a plurality of material-moving rods 29. The lower side of the material-moving rod 29 contacts the raised part of the first diffusion screen 5. A limit block 21 is installed on the reciprocating rod 20. A second spring 22 is provided between the limit block 21 and the outer wall of the seed storage box 2. The second spring 22 is installed on the reciprocating rod 20.

[0053] When in use, the rotating shaft 67 drives the second eccentric wheel 19 to rotate, and the second eccentric wheel 19 provides impetus to the reciprocating rod 20, and with the cooperation of the second spring 22, the reciprocating rod 20 drives the material removing rod 29 to realize reciprocating motion, and the reciprocating motion direction of the material removing rod 29 is opposite to the reciprocating motion direction of the first diffusion screen 5, thereby ensuring that the seeds at the bottom of the seed storage box 2 are better dispersed, avoiding the formation of lumps when there are too many seeds and causing blockage of seeds entering the recessed part of the first diffusion screen 5, thereby ensuring the uniformity of sowing.

[0054] See also Figure 1 and Figure 6 As shown, in order to reduce the impact of wind on sowing, the device is further provided with corresponding wind shielding plates 26 around the lower side of the support plate 1, which can better ensure that the seeds fall evenly and stably during landing and improve the uniformity of sowing density.

[0055] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An automatic sowing device for planting two-color coreopsis, comprising a support plate (1) and a seed storage box (2), wherein the support plate (1) is provided with a feeding opening (3), the seed storage box (2) is arranged on the upper side of the feeding opening (3), and the bottom wall of the seed storage box (2) opposite to the feeding opening (3) is an opening, characterized in that: A diffusion unit is provided between the support plate (1) and the seed storage box (2), and the diffusion unit comprises: The enclosure shell (4) is a shell that penetrates from top to bottom and is used to connect the drop opening (3) with the bottom wall opening of the seed storage box (2), and the enclosure shell (4) is slidably connected to the support plate (1); A first diffusion screen (5) is arranged in a wave shape in the enclosure shell (4), and the opening end of the seed storage box (2) is attached to the first diffusion screen (5); A reciprocating mechanism (6), the output end of which is connected to the enclosure shell (4), the reciprocating mechanism (6) is used to indirectly realize the linear reciprocating swing of the first diffusion screen (5) by driving the enclosure shell (4), and the wavy direction of the first diffusion screen (5) is arranged at an angle with the direction of its linear reciprocating swing.

2. The automatic sowing device for planting two-color Coreopsis according to claim 1, characterized in that: A second diffusion screen (7) is also arranged in the enclosure shell (4); the second diffusion screen (7) is located at the bottom of the first diffusion screen (5) and there is a distance between the two; the meshes on the second diffusion screen (7) are arranged in an alternating manner with the meshes on the first diffusion screen (5).

3. The automatic sowing device for planting two-color Coreopsis according to claim 2, characterized in that: The first diffusion screen (5) and the second diffusion screen (7) are both wavy in shape, and the wave directions of the two are arranged in a staggered manner, and the meshes on the first diffusion screen (5) and the second diffusion screen (7) are both located in the concave part of the wave shape.

4. The automatic sowing device for planting two-color Coreopsis according to claim 1, characterized in that: The reciprocating mechanism (6) comprises: Two limiting plates (61) are arranged on opposite sides of the blanking opening (3), and opposite side walls of the enclosure shell (4) are respectively fitted with one limiting plate (61), and a through groove (65) is formed on the limiting plate (61); Two movable rods (62) corresponding to the two limiting plates (61) one by one, one end of the movable rod (62) passes through the through slot (65) on the limiting plate (61) and is fixed to the enclosure shell (4), and an elastic member (66) is provided between the movable rod (62) and the side wall of the through slot (65); A connecting plate (63) is disposed on one side of the sliding direction of the enclosure shell (4), and one end of the two movable rods (62) away from the limiting plate (61) is fixedly connected to the connecting plate (63); The first eccentric wheel (64) is rotatably connected to the support plate (1) via a rotating shaft (67); the circumferential side wall of the first eccentric wheel (64) abuts against the connecting plate (63); and one end of the rotating shaft (67) is connected to a driver (68).

5. The automatic sowing device for planting two-color Coreopsis according to claim 4, characterized in that: The lower end of the rotating shaft (67) passes through the support plate (1) and is fitted with an incomplete gear (8). A rectangular movable frame (9) is fitted on the outer side of the incomplete gear (8). The movable frame (9) is slidably connected to the bottom wall of the support plate (1). A rack (10) is fixedly connected to the two opposite inner walls of the movable frame (9). The two racks (10) are alternately meshed with the incomplete gear (8). The movable frame (9) is detachably connected to a horizontal supporting frame (11). The supporting frame (11) is located below the blanking port (3), and a plurality of rake teeth (12) are evenly distributed on the bottom of the supporting frame (11).

6. The automatic sowing device for planting two-color Coreopsis according to claim 4, characterized in that: A push rod (13) is also fixedly mounted on the rotating shaft (67), and push blocks (14) are respectively arranged on both sides of the push rod (13). The side walls of the two push blocks (14) facing the push rod (13) are inclined, and the inclined directions of the inclined surfaces of the two push blocks (14) are opposite. An amplifying rod (15) is fixedly connected to the side of each push block (14) away from the push rod (13), and one end of the amplifying rod (15) away from the push block (14) is placed on one side of the limiting plate (61). A stabilizing plate (16) is mounted on the amplifying rod (15), and the lower end of the stabilizing plate (16) is fixedly connected to the supporting plate (1). A first spring (17) is arranged between the stabilizing plate (16) and the push block (14), and the first spring (17) is mounted on the amplifying rod (15).

7. The automatic sowing device for planting two-color Coreopsis according to claim 6, characterized in that: One end of the amplifying rod (15) away from the pushing block (14) is fixedly connected with a metal impact block (18).

8. The automatic sowing device for planting two-color Coreopsis according to claim 4, characterized in that: The rotating shaft (67) is also provided with a second eccentric wheel (19), one side of the second eccentric wheel (19) is in contact with a reciprocating rod (20), one end of the reciprocating rod (20) away from the second eccentric wheel (19) penetrates into the seed storage box (2) and is fixedly connected with a plurality of material removal rods (29), a limit block (21) is provided on the reciprocating rod (20), a second spring (22) is provided between the limit block (21) and the outer wall of the seed storage box (2), and the second spring (22) is provided on the reciprocating rod (20).

9. The automatic sowing device for planting two-color Coreopsis according to claim 4, characterized in that: The seed storage box (2) is hung on the two limiting plates (61), a hanging groove (23) is provided on the limiting plates (61), an elastic pad (24) is laid on the bottom of the hanging groove (23), a hanging block (25) adapted to the hanging groove (23) is fixedly connected to the seed storage box (2), the hanging block (25) is inserted into the hanging groove (23) and abuts against the elastic pad (24).

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