Rice seedling raising seeder

Abstract

The rice seedling raising seeder comprises a hopper, a machine shell and a material roller, the hopper is arranged at the inlet end of the machine shell, the material roller is arranged in the machine shell, a plurality of sets of seeding units are evenly distributed on the material roller along the circumference, and each seeding unit is composed of a plurality of seeding holes evenly distributed in the axial direction of the material roller; a baffle and a driving assembly are arranged in the seeding hole, the baffle can move in the axial direction of the seeding hole, the driving assembly is in transmission connection with the baffle, the baffle is made of ferromagnetic materials, the driving assembly generates magnetic force to enable the baffle to be kept in the seeding hole, and a rice seed containing cavity is formed between the baffle and an orifice of the seeding hole. According to the seeding mechanism, the seeding holes can be closed or opened through the baffle, so that the seeding density can be adjusted according to the type of a seedling tray, the size of seeds and the type of rice, and the application range of the seeding machine is greatly widened; meanwhile, when the material roller rotates to an outlet of the machine shell, the rice seeds can be automatically ejected out of the seeding holes due to the arrangement of the blocking mechanism, and automatic discharging is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a rice seedling raising and seeding machine. Background Art

[0002] With the development of agricultural technology, mechanized rice seedling cultivation is becoming more and more widespread, so the application of rice seedling cultivation seeders is also increasing. However, the seeders in the existing rice seedling cultivation production lines still have many defects.

[0003] When the existing rice seedling raising and sowing machine sows rice seeds, the empty seedling tray is usually placed on one end of the conveyor belt first. Under the movement of the conveyor belt, the empty seedling tray passes through the bottom soil box, the sowing machine, the covering soil box, etc. for sowing. However, most of the existing sowing machines (such as the patent with publication number CN217088620U) have the following results: by setting a cylinder (roller), and evenly setting a plurality of strip grooves on the cylinder (roller) along the axial direction, and when the cylinder (roller) rotates, the seeds in the strip grooves fall out to achieve sowing; such a structure has the following shortcomings: since the size of the strip grooves is fixed, the groove spacing and depth cannot be adjusted, resulting in the spacing of the seeds on the seedling tray cannot be adjusted, so its sowing density is single and cannot be adjusted according to the type of seedling tray, seed size and rice type. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a rice seedling raising and seeding machine, which can close or open the sowing hole by a baffle, so as to adjust the sowing density according to the type of seedling tray, seed size and rice type, thereby greatly improving the application scope of the seeder; at the same time, when the material roller rotates to the outlet of the casing, the rice seeds can automatically pop out of the sowing hole due to the setting of the blocking mechanism, thereby realizing automatic unloading.

[0005] The objective of the present invention is achieved through the following technical solutions: A rice seedling raising and seeding machine comprises a hopper, a casing and a material roller, wherein the hopper is arranged at the inlet end of the casing, the material roller is arranged in the casing, the material roller has a plurality of groups of sowing units evenly distributed along the circumference, and the sowing unit is composed of a plurality of sowing holes evenly distributed along the axial direction of the material roller; A baffle and a driving assembly are provided in the sowing hole, the baffle can move along the axial direction of the sowing hole, the driving assembly is in transmission connection with the baffle, the baffle is made of ferromagnetic material, the driving assembly generates magnetic force to keep the baffle in the sowing hole, and a rice seed receiving cavity is formed between the baffle and the orifice of the sowing hole; A blocking mechanism is provided near the outlet end of the housing, and the blocking mechanism is used to eliminate the magnetic force of the driving component near the blocking mechanism.

[0006] Further, the driving assembly includes a solenoid and an iron core disposed in the solenoid, one end of the iron core close to the baffle extends out of the solenoid, and the baffle is connected to the end of the solenoid through a first reset member; The wires of the solenoids in the same sowing unit are connected in series and then connected to a power source to form a closed circuit. A remotely controllable switch is also connected in series to the wires of the solenoids in the same sowing unit. The solenoids between each group of sowing units are connected in parallel.

[0007] Furthermore, it also includes a first contact, a second contact and an insulating plate, wherein the first contact is connected to the positive or negative electrode of the power supply through a wire, and the second contact is connected to the wire of the solenoid located at the outermost side of the material roller, and the first contact and the second contact are in contact to form a closed circuit; The insulating plate is slidably connected to the material roller, the insulating plate can move along the axial direction of the material roller, the insulating plate is connected to a driving rod, a first driving block is provided at the end of the driving rod, and a second reset member is provided outside the driving rod; The blocking mechanism comprises a second driving block adapted to the first driving block, and the driving rod moves along the axial direction of the material roller under the action of the second driving block and the first driving block.

[0008] Furthermore, the first driving block and the second driving block are both wedge-shaped blocks.

[0009] Furthermore, the first restoring member and the second restoring member are both springs.

[0010] Furthermore, the switch is a smart circuit breaker.

[0011] Furthermore, the power supply is connected in series with a protective resistor.

[0012] Furthermore, an acute-angled elastic sheet is provided on the second contact.

[0013] The beneficial effects of the present invention are: The sowing mechanism of the present invention can close or open the sowing hole through a baffle, so as to adjust the sowing density according to the type of seedling tray, seed size and rice type, thereby greatly improving the application scope of the seeder; at the same time, when the material roller rotates to the outlet of the casing, the rice seeds can automatically pop out of the sowing hole due to the setting of the blocking mechanism, thereby realizing automatic unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front cross-sectional view of the rice seedling raising and seeding machine in an embodiment of the present invention; Figure 2 It is a side sectional view of a rice seedling raising and seeding machine; Figure 3 for Figure 2 An enlarged schematic diagram of the local A in the middle; Figure 4 It is a schematic diagram of a parallel circuit of solenoids between multiple groups of sowing units; Figure 5 It is a schematic diagram of the series circuit of the solenoid and the power supply between the single-rent sowing units; Figure 6 for Figure 5 An enlarged schematic diagram of the local B in the middle; In the figure, 1, hopper; 2, casing; 3, material roller; 4, sowing hole; 5, baffle; 6, drive assembly; 7, solenoid; 8, iron core; 9, switch; 10, first contact; 11, second contact; 12, insulating plate; 13, drive rod; 14, first drive block; 15, second reset member; 16, first reset member; 17, second drive block; 18, protection resistor; 19, elastic sheet. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-Figure 6 , the present invention provides a technical solution: Example

[0017] like Figure 1-Figure 6 As shown, a rice seedling raising and seeding machine comprises a hopper 1, a casing 2 and a material roller 3, wherein the hopper 1 is arranged at the inlet end of the casing 2, the material roller 3 is arranged in the casing 2, the material roller 3 has a plurality of groups of sowing units evenly distributed along the circumference, and the sowing unit is composed of a plurality of sowing holes 4 evenly distributed along the axial direction of the material roller 3; A baffle 5 and a driving assembly 6 are provided in the sowing hole 4. The baffle 5 can move axially along the sowing hole 4. The driving assembly 6 is in transmission connection with the baffle 5. The baffle 5 is made of ferromagnetic material. The driving assembly 6 generates a magnetic force to keep the baffle 5 in the sowing hole 4. A rice seed receiving cavity is formed between the baffle 5 and the orifice of the sowing hole 4. A blocking mechanism is provided near the outlet end of the housing 2, and the blocking mechanism is used to eliminate the magnetic force of the driving assembly 6 near the blocking mechanism.

[0018] like Figure 3-Figure 6 As shown, the driving assembly 6 includes a solenoid 7 and an iron core 8 disposed in the solenoid 7. One end of the iron core 8 close to the baffle 5 extends out from the solenoid 7. The baffle 5 is connected to the end of the solenoid 7 through a first reset member 16. The wires of the solenoids 7 in the same sowing unit are connected in series and connected to the power supply to form a closed circuit. The wires of the solenoids 7 in the same sowing unit are also connected in series with a switch 9 that can be controlled remotely. The solenoids 7 between each group of sowing units are connected in parallel.

[0019] like Figure 2-Figure 6 As shown, it also includes a first contact 10, a second contact 11 and an insulating plate 12, the first contact 10 is connected to the positive or negative pole of the power supply through a wire, the second contact 11 is connected to the wire of the solenoid 7 located at the outermost side of the material roller 3, and the first contact 10 and the second contact 11 are in contact (so that the power supply, the switch 9, the first contact 10, the second contact 11, and the plurality of solenoids 7 form a closed circuit; The insulating plate 12 is slidably connected to the material roller 3, and the insulating plate 12 can move axially along the material roller 3. The insulating plate 12 is connected to a driving rod 13, and a first driving block 14 is provided at the end of the driving rod 13. A second reset member 15 is provided outside the driving rod 13 (two ends of the second reset member 15 are respectively fixed to the end of the material roller 3 and the outside of the driving rod 13); The blocking mechanism includes a second driving block 17 adapted to the first driving block 14 , and the driving rod 13 moves axially along the material roller 3 under the action of the second driving block 17 and the first driving block 14 .

[0020] The first driving block 14 and the second driving block 17 are both wedge-shaped blocks. When the first driving block 14 and the second driving block 17 cooperate, the inclined surface of the first driving block 14 faces downward, and the inclined surface of the second driving block 17 faces upward.

[0021] The first restoring member 16 and the second restoring member 15 are both springs.

[0022] The switch 9 is a smart circuit breaker. The smart circuit breaker is a prior art and will not be described in detail here. The switch 9 can be remotely controlled to realize the on / off of the branch where the switch 9 is located.

[0023] The power supply is connected in series with a protective resistor 18. The protective resistor 18 can also be a remotely controlled adjustable resistor (such as the resistor in the patent with publication number CN102880155A), so that the current of the closed circuit can be adjusted by remotely controlling the resistance value, thereby controlling the magnetic force of the driving component 6 to control the baffle 5 to be magnetically attracted to a distance away from the sowing hole 4, thereby achieving the adjustment of the sowing amount of each sowing hole 4.

[0024] An acute-angle elastic sheet 19 is disposed on the second contact 11. The first contact 10 is fixed in the material roller 3, and the second contact 11 is disposed at the bottom of the solenoid 7. The elastic sheet 19 and the second contact 11 are an integrated structure.

[0025] Among them, 1. The solenoids 7 between the same group of sowing units are connected in series and then connected to the same power supply, and the wire tubes between multiple groups of sowing units are connected in series and then connected to the power supply, and the wire tubes between multiple groups of sowing units form a parallel circuit. 2. In this embodiment, the power supply and switch 9 are both arranged inside the material roller 3, and of course, both can also be arranged at the end of the material roller 3. 3. The material roller 3 is rotatably connected to the housing 2 through a rotating shaft, a bearing, and a bearing seat, and the material roller 3 is driven by a stepping motor. 4. Figure 1 , a block is also provided on the right side of the housing 2 to fill the gap between the housing 2 and the material roller 3 to prevent the rice seeds from leaking out. 5. The first contact 10 and the second contact 11 are only connected in series to the wire of the outermost solenoid 7. 6. The power source can be but is not limited to a lithium battery. 7. The baffle 5 is made of iron. 8. When the baffle 5 is located in the sowing hole 4, the spring is compressed.

[0026] Working principle: When the sowing hole 4 rotates to the inlet of the hopper 1, the rice seeds in the hopper 1 enter the sowing hole 4. As the material roller 3 rotates, the rice seeds are driven to move toward the outlet direction of the casing 2.

[0027] When the sowing hole 4 rotates to the point where the first drive block 14 corresponds to the second drive block 17 (the two inclined surfaces are in contact), as the material roller 3 continues to rotate, the first drive block 14 moves axially along the material roller 3 under the action of the second drive block 17. In this process, the first drive block 14 drives the drive rod 13 to move axially along the material roller 3, and the material roller 3 drives the insulating plate 12 to move axially along the material roller 3. In this process, the insulating plate 12 moves toward the first contact 10 and the second contact 11 (elastic sheet 19) until the insulating plate 12 enters between them. When the insulating plate 12 enters, the elastic sheet 19 is compressed and deformed, thereby facilitating the entry of the insulating plate 12. When the insulating plate 12 withdraws, the elastic sheet 19 automatically resets to contact with the first contact 10, so that the circuit is connected.

[0028] When the insulating plate 12 enters between the first contact 10 and the elastic sheet 19, the connection between the solenoid 7 in the group of sowing holes 4 where the first contact 10 is located and the power supply is disconnected. At this time, the iron core 8 in the group of solenoids 7 loses its magnetism, and the magnetic force of the iron core 8 on the baffle 5 disappears. The baffle 5 moves toward the opening of the sowing hole 4 under the reset action of the spring, and then the rice seeds in the sowing hole 4 are automatically ejected, completing the automatic unloading of the rice seeds. When the first driving block 14 is separated from the second driving block 17, the insulating plate 12 is reset under the action of the second reset member 15 (disconnected from the first contact 10 and the elastic sheet 19), the branch circuit is reconnected, and the baffle 5 is sucked back into the sowing hole 4 to re-form the rice seed receiving chamber.

[0029] When the sowing density needs to be adjusted, the switch 9 on the remote control branch line can be disconnected, so that the solenoid 7 in one or more groups of sowing units is de-energized according to actual needs (the branch circuit is disconnected). After the de-energization, the baffle 5 is located at the opening of the sowing hole 4 and supported by the spring. At this time, the sowing hole 4 of the sowing unit of this group cannot be entered by the baffle 5, so the sowing density can be adjusted. At the same time: the resistance can be controlled remotely, such as reducing the resistance to increase the current. When the current increases, the magnetic force increases, and the depth of the rice seed holding cavity increases. At this time, the rice seed holding capacity of the rice seed holding cavity increases, and when the rice seeds are discharged, the number increases, so the sowing density can be increased.

[0030] The sowing mechanism of the present invention can close or open the sowing hole through a baffle, so as to adjust the sowing density according to the type of seedling tray, seed size and rice type, thereby greatly improving the application scope of the seeder; at the same time, when the material roller rotates to the outlet of the casing, the rice seeds can automatically pop out of the sowing hole due to the setting of the blocking mechanism, thereby realizing automatic unloading.

[0031] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A rice seedling raising and seeding machine, comprising a hopper, a casing and a material roller, wherein the hopper is arranged at the inlet end of the casing, and the material roller is arranged inside the casing, characterized in that: The material roller is evenly distributed with a plurality of sowing units along the circumference, and the sowing units are composed of a plurality of sowing holes evenly distributed along the axial direction of the material roller; A baffle and a driving assembly are provided in the sowing hole, the baffle can move along the axial direction of the sowing hole, the driving assembly is in transmission connection with the baffle, the baffle is made of ferromagnetic material, the driving assembly generates magnetic force to keep the baffle in the sowing hole, and a rice seed receiving cavity is formed between the baffle and the orifice of the sowing hole; A blocking mechanism is provided near the outlet end of the housing, and the blocking mechanism is used to eliminate the magnetic force of the driving component near the blocking mechanism.

2. The rice seedling raising and seeding machine according to claim 1, characterized in that: The driving assembly includes a solenoid and an iron core arranged in the solenoid, one end of the iron core close to the baffle extends out of the solenoid, and the baffle is connected to the end of the solenoid through a first reset member; The wires of the solenoids in the same sowing unit are connected in series and then connected to a power source to form a closed circuit. The wires of the solenoids in the same sowing unit are also connected in series with a switch that can be controlled remotely. The solenoids between each group of sowing units are connected in parallel.

3. The rice seedling raising and seeding machine according to claim 2, characterized in that: It also includes a first contact, a second contact and an insulating plate, wherein the first contact is connected to the positive electrode or the negative electrode of the power supply through a wire, and the second contact is connected to the wire of the solenoid located at the outermost side of the material roller, and the first contact and the second contact are in contact to form a closed circuit; The insulating plate is slidably connected to the material roller, the insulating plate can move along the axial direction of the material roller, the insulating plate is connected to a driving rod, a first driving block is provided at the end of the driving rod, and a second reset member is provided outside the driving rod; The blocking mechanism comprises a second driving block adapted to the first driving block, and the driving rod moves along the axial direction of the material roller under the action of the second driving block and the first driving block.

4. The rice seedling raising and seeding machine according to claim 3, characterized in that: The first driving block and the second driving block are both wedge-shaped blocks.

5. The rice seedling raising and seeding machine according to claim 3, characterized in that: The first restoring member and the second restoring member are both springs.

6. The rice seedling raising and seeding machine according to claim 2, characterized in that: The switch is a smart circuit breaker.

7. The rice seedling raising and seeding machine according to claim 2, characterized in that: The power supply is connected in series with a protective resistor.

8. The rice seedling raising and seeding machine according to claim 3, characterized in that: An acute-angle elastic sheet is provided on the second contact point.

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