Hole pressing device of seeding machine

Abstract

The utility model provides a hole pressing device of a seeding machine. The hole pressing device comprises a rack, a transverse conveying device, a hole pressing mechanism, an infrared transmitter, an infrared receiver, an ultrasonic distance sensor, a seedling raising tray correcting mechanism and a controller, the transverse conveying device and the hole pressing mechanism are installed on the rack, the hole pressing mechanism is located above the transverse conveying device, infrared emitters are arranged at the front end and the rear end of the transverse conveying device respectively, infrared receivers are arranged at the front end and the rear end of the hole pressing mechanism respectively, and seedling raising tray correcting mechanisms are arranged on the two sides of the transverse conveying device respectively. The seedling raising tray correction mechanisms are mounted on the rack, and ultrasonic distance sensors are arranged on the left side and the right side of the seedling raising tray correction mechanism on one side respectively; the controller is respectively connected with the transverse conveying device, the infrared transmitter, the infrared receiver, the ultrasonic distance sensor and the seedling raising tray correcting mechanism, so that the hole pressing accuracy and the seeding accuracy of the seeding machine are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of precision seeders in agricultural machinery, and specifically relates to a seeder hole pressing device. Background Technology

[0002] In agricultural production, the sowing process is crucial, and the seeder is the key equipment for achieving precision sowing mechanization. With the widespread cultivation of super rice in my country, its numerous advantages over traditional rice, such as its tall plant size, robust stems, strong tillering ability, and large grains, make it more suitable for sparse planting, which helps individual plant growth and the formation of high-yield populations. Typically, the planting density of super rice is reduced by about 5,000 to 7,000 holes per mu (approximately 0.16 acres) compared to traditional rice. As research on super rice continues to deepen, higher demands are being placed on rice cultivation agronomy. Precision sowing in a streamlined process is a critical link in rice cultivation and is currently one of the least automated and mechanized stages in the planting, harvesting, and production of super rice in my country. Inaccurate hole pressing is a significant factor affecting sowing accuracy. After the seedling tray is laid with bottom soil, the hole pressing mechanism presses out sowing holes in the bottom soil before the seedlings are placed in the sowing position. Most existing technologies use roller-type hole-pressing mechanisms, but the hole-pressing is not precise and has poor compatibility with sowing devices; therefore, the automated production line operation of precision rice sowing requires a precision hole-pressing device that can match the sowing process. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a seeder hole-pressing device that improves the accuracy of hole pressing, thereby enhancing the seeding accuracy of the seeder.

[0004] Note that the description of these objectives does not preclude the existence of other objectives. One aspect of the invention does not require achieving all of the above objectives. Objectives other than those described above can be extracted from the description, drawings, and claims.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A seeder hole-pressing device includes a frame, a transverse conveying device, a hole-pressing mechanism, an infrared transmitter, an infrared receiver, an ultrasonic distance sensor, a seedling tray correction mechanism, and a controller. The transverse conveying device and the hole-pressing mechanism are respectively mounted on the frame, with the hole-pressing mechanism located above the transverse conveying device. Infrared transmitters are respectively provided at the front and rear ends of the transverse conveying device, and infrared receivers are respectively provided at the front and rear ends of the hole-pressing mechanism. Seedling tray correction mechanisms are respectively provided on both sides of the transverse conveying device and mounted on the frame. Ultrasonic distance sensors are respectively provided on the left and right sides of one side of the seedling tray correction mechanism. The controller is connected to the transverse conveying device, the infrared transmitter, the infrared receiver, the ultrasonic distance sensor, and the seedling tray correction mechanism.

[0007] In the above scheme, the transverse conveying device includes two symmetrically arranged transverse conveying mechanisms, an electrical control box, and a drive mechanism; each transverse conveying mechanism includes a driving roller, a belt, and a driven roller; the belt is installed on the driving roller and the driven roller; the two driving rollers at the front end of the two transverse conveying mechanisms are arranged coaxially and connected through the same drive shaft, the drive shaft is connected to the drive mechanism, and the drive mechanism is connected to the controller; the two driven rollers at the rear end are arranged coaxially and connected through the same driven shaft; the electrical control box is installed between the two transverse conveying mechanisms; infrared transmitters are installed at the front and rear ends of the electrical control box; the controller and the drive mechanism are installed inside the electrical control box.

[0008] Furthermore, the drive shaft and the driven shaft are respectively mounted on the frame via mounting brackets.

[0009] In the above scheme, the cavitation mechanism includes a flat plate, a lifting mechanism, and a cavitation component; the cavitation component is installed at the bottom of the flat plate; one end of the lifting mechanism is connected to the flat plate, and the other end is connected to the frame.

[0010] Furthermore, the cavitation component includes a plurality of conical cavitation protrusions; the cavitation protrusions are connected to the plate and have their tips pointing downwards.

[0011] Furthermore, the number and position of the pressing teeth correspond to the number and position of the sowing holes on the seeder.

[0012] In the above scheme, the seedling tray correction mechanism includes a telescopic mechanism and a side plate; one end of the telescopic mechanism is connected to the frame, and the other end is connected to the side plate.

[0013] Furthermore, the telescopic mechanism is a linear hydraulic drive mechanism; the linear hydraulic drive mechanism is connected to the controller.

[0014] In the above scheme, the controller is a PLC.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention controls the operation of the transverse conveying mechanism through signal feedback detected by an infrared transmitter and receiver. The pressing mechanism is flat, and the number and position of the pressing teeth correspond to the number and position of the sowing holes on the seeder. The automatic correction of the direction of the seedling tray is achieved through the cooperation of an ultrasonic distance sensor and a seedling tray correction mechanism. It can complete precise pressing within the pressing device, thereby improving the accuracy of the seeder. After pressing, the seedling tray is transported to the sowing device through the transverse conveying mechanism, which also improves the automation and mechanization of the precision rice sowing process. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the hole-pressing device of a seeder according to one embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the frame structure according to one embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of a transverse conveying device according to one embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the cavitation mechanism according to one embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the seedling tray correction mechanism according to one embodiment of the present invention.

[0023] The components include: 1. Frame; 2. Lateral conveyor; 201. Driven roller; 202. Belt; 203. Electrical control box; 204. Mounting base; 205. Driven roller; 3. Pressing mechanism; 301. Flat plate; 302. Lifting mechanism; 303. Pressing component; 4. Infrared transmitter; 5. Infrared receiver; 6. Ultrasonic distance sensor; 7. Seedling tray correction mechanism; 701. Telescopic mechanism; 702. Side plate. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "front," "rear," "left," "right," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] like Figure 1 and 2 As shown, this is a preferred embodiment of the seeder hole-pressing device of the present invention. The seeder hole-pressing device includes a frame 1, a transverse conveying device 2, a hole-pressing mechanism 3, an infrared transmitter 4, an infrared receiver 5, an ultrasonic distance sensor 6, a seedling tray correction mechanism 7, and a controller. The transverse conveying device 2 and the hole-pressing mechanism 3 are respectively mounted on the frame 1, with the hole-pressing mechanism 3 located above the transverse conveying device 2. Infrared transmitters 4 are respectively provided at the front and rear ends of the transverse conveying device 2, and infrared receivers 5 are respectively provided at the front and rear ends of the hole-pressing mechanism 3. Seedling tray correction mechanisms 7 are respectively provided on both sides of the transverse conveying device 2, and the seedling tray correction mechanisms 7 are mounted on the frame 1. Ultrasonic distance sensors 6 are respectively provided on the left and right sides of the left seedling tray correction mechanism 7. The controller is connected to the transverse conveying device 2, the infrared transmitter 4, the infrared receiver 5, the ultrasonic distance sensor 6, and the seedling tray correction mechanism 7.

[0028] like Figure 3As shown, the transverse conveying device 2 includes two symmetrically arranged transverse conveying mechanisms, an electrical control box 203, and a drive mechanism; each transverse conveying mechanism includes a drive roller 201, a belt 202, and a driven roller 205; the belt 202 is installed on the drive roller 201 and the driven roller 201; the two drive rollers 201 at the front end of the two transverse conveying mechanisms are arranged coaxially and connected through the same drive shaft, the drive shaft is connected to the drive mechanism, and the drive mechanism is connected to the controller; the two driven rollers 205 at the rear end are arranged coaxially and connected through the same driven shaft; the electrical control box 203 is installed between the two transverse conveying mechanisms; infrared transmitters 4 are installed at the front and rear ends of the electrical control box 203; the controller and the drive mechanism are installed inside the electrical control box 203.

[0029] Preferably, the drive shaft and the driven shaft are mounted on the frame 1 via mounting base 204.

[0030] Preferably, the distance from the front end of the front infrared transmitter 4 to the rear end of the rear infrared transmitter 4 is equal to the length of the seedling tray. When the seedling tray is transported to a certain point, it can completely cover the front and rear infrared transmitters 4, completely blocking the infrared light. The infrared receiver 5 cannot receive the infrared light. At this time, the controller controls the transverse conveying device 2 to stop conveying.

[0031] The cavitation mechanism 3 includes a flat plate 301, a lifting mechanism 302, and a cavitation component 303; the cavitation component 303 is installed at the bottom of the flat plate 301; one end of the lifting mechanism 302 is connected to the flat plate 301, and the other end is connected to the frame 1.

[0032] like Figure 4 As shown, the cavitation component 303 includes a plurality of conical cavitation protrusions; the cavitation protrusions are connected to the plate 301 and have their tips pointing downwards.

[0033] In one specific embodiment of this utility model, there are four lifting mechanisms 302, which are respectively set on the four corners of the flat plate 301; the pressing mechanism 3 is flat, and the number and position of the pressing protrusions correspond to the number and position of the sowing holes of the seeder. The automatic correction of the direction of the seedling tray is realized by the cooperation of the ultrasonic distance sensor and the seedling tray correction mechanism, which can improve the sowing accuracy of the sowing device after the pressing device presses the holes accurately.

[0034] like Figure 5 As shown, the seedling tray correction mechanism 7 includes a telescopic mechanism 701 and a side plate 702; one end of the telescopic mechanism 701 is connected to the frame 1, and the other end is connected to the side plate 702.

[0035] The telescopic mechanism 701 is a linear hydraulic drive mechanism; the linear hydraulic drive mechanism is connected to the controller.

[0036] In one specific embodiment of this utility model, the ultrasonic distance sensor 6 is respectively installed at one-quarter and three-quarters of the left side support of the frame 1; the seedling tray correction mechanism 7 is respectively installed at the middle of the two side supports of the frame 1.

[0037] The front and rear ultrasonic distance sensors 6 are used to measure the distance between themselves and the seedling trays on the transverse conveying device 2, and transmit the distance signal to the controller. When the ultrasonic distance sensor 6 measures that the distance between itself and the seedling tray is not within the preset range, it indicates that the position of the seedling tray on the transverse conveying device 2 is skewed. The controller controls the telescopic mechanism 701 of the seedling tray correction mechanism 7 to push the side plate 702 to contact the transverse conveying device 2 to correct the seedling tray.

[0038] Preferably, the controller is a PLC.

[0039] The working process of the seeder's hole-pressing device is as follows:

[0040] The seedling tray enters the planting hole pressing device of the seeder and is first transported by the transverse conveyor 2. The infrared emitter 4 emits infrared light, which is received by the infrared receiver 5. The distance from the front end of the front infrared emitter 4 to the rear end of the rear infrared emitter 4 is set to be equal to the length of the seedling tray. When the seedling tray is transported to a certain point, it can completely cover the front and rear infrared emitters 4, completely blocking the infrared light, so that the infrared receiver 5 cannot receive the infrared light. At this time, the controller controls the transverse conveyor 2 to stop conveying, and the ultrasonic distance sensor 6 measures the distance between the seedling tray and the tray to see if it is within the preset range. If it is within the preset range, the controller controls the lifting mechanism 302 to start descending, and the pressing component 303 directly presses the seedling tray. When the lifting mechanism 302 descends to the preset height, it rises back to the original height, and the pressing is completed. If the distance between the ultrasonic distance sensor 6 and the seedling tray is not within the preset range, the seedling tray correction mechanism 7 is used for correction. The controller controls the telescopic mechanism 701 to push the side plate 702 to contact the transverse conveyor 2 to correct the seedling tray. After correction, the controller controls the lifting mechanism 302 to start descending, and the pressing component 303 presses the seedling tray. After pressing is completed, the controller controls the transverse conveyor 2 to start conveying, and the pressed seedling tray is conveyed to the sowing device.

[0041] The seeder pressing device of this utility model lays the bottom soil in the seedling tray and sweeps the bottom soil leveled by the bottom soil laying device. Then, it is transported by the transverse conveyor 2. The position is corrected by the ultrasonic distance sensor 6 and the seedling tray correction mechanism 7. The pressing mechanism 3 automatically presses the holes, which improves the accuracy of pressing the holes. After pressing the holes, it is automatically transported to the sowing device by the transverse conveyor 2. This also improves the automation and mechanization of the precision rice sowing process.

[0042] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. All equivalent embodiments or modifications made without departing from the spirit of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A seeder hole-pressing device, characterized in that, It includes a frame (1), a transverse conveying device (2), a pressing mechanism (3), an infrared transmitter (4), an infrared receiver (5), an ultrasonic distance sensor (6), a seedling tray correction mechanism (7), and a controller; The transverse conveying device (2) and the pressing mechanism (3) are respectively installed on the frame (1), and the pressing mechanism (3) is located above the transverse conveying device (2). The front and rear ends of the transverse conveying device (2) are respectively equipped with infrared transmitters (4), and the front and rear ends of the pressing mechanism (3) are respectively equipped with infrared receivers (5). The two sides of the transverse conveying device (2) are respectively equipped with seedling tray correction mechanisms (7). The seedling tray correction mechanisms (7) are installed on the frame (1). The left and right sides of one side of the seedling tray correction mechanism (7) are respectively equipped with ultrasonic distance sensors (6). The controller is connected to the transverse conveying device (2), infrared transmitters (4), infrared receivers (5), ultrasonic distance sensors (6) and seedling tray correction mechanisms (7).

2. The seeder hole-pressing device according to claim 1, characterized in that, The transverse conveying device (2) includes two symmetrically arranged transverse conveying mechanisms, an electrical control box (203), and a drive mechanism; Each of the transverse conveying mechanisms includes a drive roller (201), a belt (202), and a driven roller (205); the belt (202) is mounted on the drive roller (201) and the driven roller (205); The two front-end active rollers (201) of the two sets of transverse conveying mechanisms are arranged coaxially and connected by the same drive shaft. The drive shaft is connected to the drive mechanism, and the drive mechanism is connected to the controller. The two rear-end driven rollers (205) are arranged coaxially and connected by the same driven shaft. The electrical control box (203) is installed between two transverse conveying mechanisms; the infrared transmitter (4) is installed at both ends of the electrical control box (203); the controller and drive mechanism are installed inside the electrical control box (203).

3. The seeder hole-pressing device according to claim 2, characterized in that, The drive shaft and driven shaft are respectively mounted on the frame (1) via mounting base (204).

4. The seeder hole-pressing device according to claim 1, characterized in that, The cavitation mechanism (3) includes a plate (301), a lifting mechanism (302), and a cavitation component (303); the cavitation component (303) is installed at the bottom of the plate (301); one end of the lifting mechanism (302) is connected to the plate (301), and the other end is connected to the frame (1).

5. The seeder hole-pressing device according to claim 4, characterized in that, The cavitation component (303) includes a plurality of conical cavitation protrusions; the cavitation protrusions are connected to the plate (301) and the tips face downward.

6. The seeder hole-pressing device according to claim 5, characterized in that, The number and position of the pressure-hole protrusions correspond to the number and position of the sowing holes on the seeder.

7. The seeder hole-pressing device according to claim 1, characterized in that, The seedling tray correction mechanism (7) includes a telescopic mechanism (701) and a side plate (702); One end of the telescopic mechanism (701) is connected to the frame (1), and the other end is connected to the side plate (702).

8. The seeder hole-pressing device according to claim 7, characterized in that, The telescopic mechanism (701) is a linear hydraulic drive mechanism; the linear hydraulic drive mechanism is connected to the controller.

9. The seeder hole-pressing device according to claim 1, characterized in that, The controller is a PLC.

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