Film mulching and hole sowing device for buckwheat

Abstract

A buckwheat film mulching and hole sowing device comprises a rack, a furrow opener, a film mulching mechanism, a soil covering mechanism, a hole sowing mechanism and a pneumatic film pressing mechanism. Supporting wheels are arranged at the rear end of the rack; the furrow opener is arranged at the front end of the rack; the film covering mechanism comprises a film roller supporting frame and a film covering wheel. The film roller supporting frame is arranged on the rack and located behind the furrow opener, and the film covering wheel is rotationally arranged on the rack and located behind the film roller supporting frame; the soil covering mechanisms are arranged on the two sides of the rack and located behind the film covering wheels. The hole sowing mechanism is arranged behind the rack; the pneumatic film pressing mechanism comprises a fixing frame, an air distribution roller and a fan; the fixing frame is arranged on the machine frame and located between the film covering roller and the soil covering mechanism, the air distribution roller is arranged on the fixing frame, exhaust holes are formed in the outer wall of the air distribution roller, air inlet pipes are arranged at the two ends of the air distribution roller, the draught fan is fixed to the machine frame, and the outlet end of the draught fan is communicated with the air inlet pipes through hoses. According to the utility model, moisture required by buckwheat growth can be ensured, and film mulching and seeding of buckwheat can be realized at one time.

Description

Technical Field

[0001] The utility model relates to the technical field of buckwheat planting, in particular to a buckwheat film-covered hole-seeding sowing device. Background Art

[0002] In the past, the traditional way of sowing buckwheat was to have an animal pulling a plow, with another person helping with the plow (that is, walking beside the animal, pulling the reins and preventing it from going astray). Another person would hold the plow handle from behind and shake it to plant the seeds. The plow bell would rhythmically pull the seeds into the plow bucket, which would then drip into the three plow leg pipes and fall into the soil from the holes at the back of the plow.

[0003] With the development of agricultural mechanization, seeders for crops such as buckwheat have appeared one after another. For example, the utility model patent with the announcement number CN206547294U discloses a buckwheat hole seeding machine, which automatically rotates by pulling the seeding wheel through the vehicle body, and the seeding wheel realizes automatic seeding of seeds during the rotation process, which solves the problem of existing manual seeding and realizes the automatic sowing of buckwheat. Because buckwheat likes a cool and humid climate, likes sunshine, and requires more water, when it is planted in the northwest region, because the climate in the northwest region is relatively dry, in order to ensure the emergence rate of buckwheat and subsequent good growth, it is usually necessary to lay a plastic film on the ground before planting buckwheat to ensure surface moisture; however, when using the above scheme to sow buckwheat, it is not possible to achieve film covering and sowing at the same time, and it still requires two processes of film covering and sowing to achieve it, which is difficult to meet the ultimate demand of buckwheat mechanized operation. Summary of the invention

[0004] In order to solve the technical problems existing in the above-mentioned technology, it is necessary to provide a buckwheat film-covered hole-seeding sowing device.

[0005] A buckwheat film-covered hole-seeding device comprises a frame, a furrow opener, a film-covering mechanism, a soil-covering mechanism, a hole-seeding mechanism, and a pneumatic film-pressing mechanism;

[0006] The rear end of the frame is rotatably provided with a supporting wheel;

[0007] The furrow opener is arranged at the front end of the frame;

[0008] The film coating mechanism comprises a film roller support frame and a film coating wheel; the film roller support frame is arranged on the frame and located behind the furrow opener, and is used to install the plastic film roller; the film coating wheel is rotatably arranged on the frame and located behind the film roller support frame;

[0009] The soil covering mechanism is arranged on both sides of the frame and is located behind the film covering wheel;

[0010] The hole seeding mechanism is arranged at the rear of the frame;

[0011] The pneumatic film pressing mechanism includes a fixed frame, an air distribution roller, and a fan; the fixed frame is arranged on the frame and is located between the film coating roller and the soil covering mechanism, the air distribution roller is arranged on the fixed frame, and the axis of the air distribution roller is parallel to the axis of the film roller supporting frame, the outer wall of the air distribution roller is provided with exhaust holes, and the two ends of the air distribution roller are provided with air inlet pipes, the fan is fixed on the frame, and the outlet end of the fan is connected with the air inlet pipe through a hose, so as to pass pressurized air into the air distribution roller, and then the pressurized air is sprayed toward the plastic film through the exhaust holes on the air distribution roller to form downward pressure on the plastic film.

[0012] Preferably, the air distribution roller can rotate circumferentially, and an arc-shaped cover adapted to the shape of the air distribution roller is provided on the fixed frame. The arc-shaped cover is located above the air distribution roller, and the arc-shaped cover can block the air sprayed upward when the air distribution roller rotates.

[0013] Preferably, the air inlet pipe is fixed on a fixed frame, the air inlet pipe is rotatably connected to the air distribution roller, a first driven wheel is rotatably mounted on the air inlet pipe, the first driven wheel and the air distribution roller are fixed by a connecting rod, a second driven wheel is arranged on the coating wheel, the second driven wheel is connected to the first driven wheel by a sprocket, so that the coating wheel can drive the second driven wheel, the first driven wheel and the air distribution roller to rotate when it rotates.

[0014] Preferably, the hole seeding mechanism includes a hole seeding disc and a suppressing wheel; the hole seeding disc is arranged at the rear end of the frame, and the suppressing wheel is arranged on the frame and located behind the hole seeding disc.

[0015] Preferably, the pressing wheel is tilted downward so that the pressing wheel forms an angle with the seeding disc, and the pressing wheel is connected to the frame via a torsion spring.

[0016] Preferably, an air suction pump for providing suction to the hole-seeding mechanism is provided on the frame, and the air suction pump is connected to the hole-seeding mechanism through a hose.

[0017] Preferably, a battery box for providing power to the fan and the air suction pump is provided on the frame.

[0018] Preferably, the soil covering mechanism includes a fixing rod and a soil covering plate; the soil covering plate is arranged at the lower end of the fixing rod, and the fixing rod is arranged on both sides of the frame, and the fixing rod can move up and down along the longitudinal direction of the frame to adjust the distance between the soil covering plate and the frame.

[0019] Preferably, the soil covering plate is inclined toward the outside of the frame, and the soil covering plate and the axis of the frame are at 45°.

[0020] Preferably, a differential pressure controller is provided on the frame, and the differential pressure controller is installed on a hose at the outlet end of the air suction pump.

[0021] Compared with the prior art, the buckwheat film covering and hole sowing device provided by the utility model can install the plastic film on the film roller support frame in advance, and when sowing, two grooves can be first opened on the ground by using the furrow opener, and then the plastic film can be laid on the ground between the two grooves. When laying the plastic film, the film covering wheel can press the two sides of the plastic film on the ground, and at this time, the fan will pass the pressurized air into the air distribution roller, and then the pressurized air will be sprayed toward the plastic film through the exhaust holes on the air distribution roller, so as to form a downward airflow at the upper side of the plastic film to form a downward pressure on the plastic film, so that the plastic film can be attached to the ground to the maximum extent, and then the soft soil on both sides of the plastic film is covered on both sides of the plastic film by the soil covering mechanism, so as to realize the laying of the plastic film, and at the same time, the hole sowing mechanism can sow buckwheat seeds in the soil in the laid plastic film, which can not only ensure the moisture required for the growth of buckwheat, but also realize the film covering and sowing of buckwheat at one time, thereby greatly improving the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a front view structural schematic diagram of the utility model.

[0024] Figure 2 For this utility model Figure 1 Schematic diagram of the structure from another angle.

[0025] Figure 3 For this utility model Figure 1 Schematic diagram of the axial structure.

[0026] Figure 4 It is a front view structural schematic diagram of the air distribution roller of the utility model.

[0027] Figure 5 For this utility model Figure 4 Schematic diagram of the structure from another angle.

[0028] Figure 6 It is a structural schematic diagram of the hole-seeding sowing mechanism of the utility model.

[0029] In the figure: frame 01, support wheel 11, furrow opener 02, film covering mechanism 03, film roller support frame 31, film covering wheel 32, soil covering mechanism 04, fixed rod 41, soil covering plate 42, hole sowing mechanism 05, hole sowing plate 51, pressure wheel 52, pneumatic film pressing mechanism 06, fixed frame 61, air distribution roller 62, exhaust hole 621, air inlet pipe 622, fan 63, arc cover 64, first driven wheel 65, second driven wheel 66, connecting rod 67, air suction pump 07, battery box 08, differential pressure controller 09. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0032] Please see Figures 1 to 6The utility model provides a buckwheat film covering hole sowing device, comprising a frame 01, a furrow opener 02, a film covering mechanism 03, a soil covering mechanism 04, a hole sowing mechanism 05, and a pneumatic film pressing mechanism 06; the rear end of the frame 01 is rotatably provided with a support wheel 11. The furrow opener 02 is arranged at the front end of the frame 01. The film covering mechanism 03 comprises a film roller support frame 31 and a film covering wheel 32; the film roller support frame 31 is arranged on the frame 01 and is located behind the furrow opener 02, and is used to install a plastic film roller, and the film covering wheel 32 is rotatably arranged on the frame 01 and is located behind the film roller support frame 31. The soil covering mechanism 04 is arranged on both sides of the frame 01 and is located behind the film covering wheel 32. The hole sowing mechanism 05 is arranged behind the frame 01, and the hole sowing mechanism 05 is used to accurately and quantitatively sow buckwheat seeds in the soil. The pneumatic film pressing mechanism 06 includes a fixed frame 61, an air distribution roller 62, and a fan 63; the fixed frame 61 is arranged on the frame 01 and is located between the film coating roller and the soil covering mechanism 04, the air distribution roller 62 is arranged on the fixed frame 61, and the interior of the air distribution roller 62 is hollow, the axis of the air distribution roller 62 is parallel to the axis of the film roller support frame 31, an exhaust hole 621 is opened on the outer wall of the air distribution roller 62, and an air inlet pipe 622 is arranged at both ends of the air distribution roller 62, and the outlet end of the air inlet pipe 622 extends into the interior of the air distribution roller 62, so that the air inlet pipe 622 is connected with the interior of the air distribution roller 62. The fan 63 is fixed on the frame 01, and the outlet end of the fan 63 is connected with the inlet end of the air inlet pipe 622 through a hose, so as to pass the pressurized air into the air distribution roller 62, and then the pressurized air is sprayed toward the plastic film through the exhaust hole 621 on the air distribution roller 62 to form a downward pressure on the plastic film.

[0033] The height of the lower end of the furrow opener 02 from the frame 01 can be adjusted, and the height can be adjusted by pin positioning, and the furrowing depth of the furrow opener 02 can be adjusted according to the adjusted height. Usually, two furrow openers 02 are used, and the two furrow openers 02 are symmetrically arranged at the front end of the frame 01 with the axis of the frame 01 as the symmetry axis, and the distance between the two furrow openers 02 can be adjusted, so that the distance between the two furrows can be adjusted.

[0034] The support wheel 11 can move up and down in the longitudinal direction of the frame 01 , and the height of the support wheel 11 from the frame 01 can be adjusted by a pin connection.

[0035] When sowing, the plastic film is installed on the film roller support frame 31 in advance, and two furrows can be opened on the ground by using the furrow opener 02, and then the plastic film is laid on the ground between the two furrows. When laying the plastic film, the film covering wheel 32 can press both sides of the plastic film on the ground, and at this time the fan 63 will pass the pressurized air into the air distribution roller 62, and then the pressurized air will be sprayed toward the plastic film through the exhaust hole 621 on the air distribution roller 62, so as to form a downward airflow at the upper side of the plastic film to form a downward pressure on the plastic film, so that the plastic film can be attached to the ground to the maximum extent, and then the soft soil on both sides of the plastic film is covered on both sides of the plastic film by the covering mechanism 04, so as to realize the laying of the plastic film, and at the same time, the hole sowing mechanism 05 can sow buckwheat seeds in the soil in the laid plastic film, which can not only ensure the moisture required for the growth of buckwheat, but also realize the covering and sowing of buckwheat at one time, thereby greatly improving the working efficiency. When the pressurized air is sprayed toward the plastic film, it can not only make the plastic film stick to the ground, but also squeeze out the air between the plastic film and the ground, preventing the plastic film from expanding or bulging when laid, ensuring that the distance deviation of the plastic film on both sides of the furrow opener 02 will not be too large. After covering with soil, the soil covering the plastic film can firmly press the plastic film, preventing the plastic film from being blown away by wind in the later stage.

[0036] In one embodiment, the air distribution roller 62 can rotate in a circumferential direction, and an arc-shaped cover 64 matching the shape of the air distribution roller 62 is provided on the fixed frame 61. The arc-shaped cover 64 is located above the air distribution roller 62, and the arc-shaped cover 64 can block the air sprayed upward by the air distribution roller 62 when it rotates. A gap can be left between the inner surface of the arc-shaped cover 64 and the outer wall of the air distribution roller 62 to prevent the air flow from blowing upward and overflowing when the air distribution roller 62 rotates. The inner surface of the arc-shaped cover 64 can also fit the outer wall of the air distribution roller 62. In this case, the air distribution roller 62 can still rotate in a circumferential direction, which can prevent the pressurized air in the air distribution roller 62 from overflowing to the greatest extent, and at the same time can increase the pressure of the air sprayed from the exhaust hole 621 to ensure the downward pressure on the plastic film.

[0037] Specifically, the air inlet pipe 622 is fixed on the fixing frame 61, and the air inlet pipe 622 is rotatably connected with the air distribution roller 62. A bearing can be installed on the side close to the air outlet end of the air inlet pipe 622 to realize the rotatable connection with the air distribution roller 62. A first driven wheel 65 is rotatably installed on the air inlet pipe 622, and a bearing can be installed on the air inlet pipe 622 to realize the rotatable connection between the first driven wheel 65 and the air inlet pipe 622; the first driven wheel 65 and the air distribution roller 62 are fixed by a connecting rod 67, and a second driven wheel 66 is provided on the film coating wheel 32. The second driven wheel 66 and the film coating wheel 32 share a shaft, so that the second driven wheel 66 can be synchronously rotated with the film coating wheel 32; the second driven wheel 66 is connected to the first driven wheel 65 by a sprocket, so that the film coating wheel 32 can drive the second driven wheel 66, the first driven wheel 65, and the air distribution roller 62 to rotate when rotating. Of course, a transmission belt can also be used to connect the first driven wheel 65 and the second driven wheel 66. After the film coating wheel 32 contacts the ground, the film coating wheel 32 will rotate, which can drive the second driven wheel 66 and the first driven wheel 65 to rotate, and then drive the air distribution roller 62 to rotate circumferentially. When the air distribution roller 62 rotates, the exhaust holes 621 on the air distribution roller 62 will also synchronously spray out pressurized air. Due to the blocking and sealing effect formed by the arc cover 64 above the air distribution roller 62, the exhaust holes 621 can be prevented from overflowing pressurized air upward. At this time, the exhaust holes 621 can only spray pressurized air to the plastic film on the side and below, and the air distribution roller 62 is rotating, so that continuous flowing air can be formed above the plastic film, thereby forming downward pressure on the plastic film to ensure that the plastic film fits the ground to the maximum extent. Secondly, through the rotation of the air distribution roller 62 and the pressurized air ejected from the exhaust hole 621, an airflow flowing behind the frame 01 is formed above the plastic film, which can sweep the dust generated by the soil covering plate 42 when covering the soil to the rear of the frame 01, so as to reduce the dust at the front of the frame 01 and reduce the dust hazard to the operator operating the agricultural machinery in front. In addition, the blowing of the pressurized air can prevent a lot of dust from being scattered on the plastic film.

[0038] In one embodiment, the hole seeding mechanism 05 includes a hole seeding disc 51 and a pressing wheel 52 ; the hole seeding disc 51 is disposed at the rear end of the frame 01 , and the pressing wheel 52 is disposed on the frame 01 and located behind the hole seeding disc 51 .

[0039] Specifically, the pressing wheel 52 is tilted downward so that the pressing wheel 52 forms an angle with the seeding plate 51, and the pressing wheel 52 is connected to the frame 01 through a torsion spring; thereby ensuring that the pressing wheel 52 can always have the force to press down on the ground to ensure the downward pressure.

[0040] In one embodiment, an air suction pump 07 for providing suction force for the hole-seeding mechanism 05 is disposed on the frame 01, and the air suction pump 07 is connected to the hole-seeding mechanism 05 through a hose.

[0041] In one embodiment, a battery box 08 for providing power to the fan 63 and the air suction pump 07 is disposed on the rack 01 .

[0042] In one embodiment, the covering mechanism 04 includes a fixed rod 41 and a covering plate 42; the covering plate 42 is arranged at the lower end of the fixed rod 41, and the fixed rod 41 is arranged on both sides of the frame 01. The fixed rod 41 can move up and down along the longitudinal direction of the frame 01 to adjust the distance between the covering plate 42 and the frame 01.

[0043] Specifically, the soil covering plate 42 is inclined toward the outside of the frame 01 , and the soil covering plate 42 and the axis of the frame 01 form an angle of 45°.

[0044] Among them, the soil covering plate 42 is recessed inwardly toward one side of the film covering wheel 32. When the soil covering plate 42 rotates circumferentially, it can obtain soil to the maximum extent and use the centrifugal force generated by the rotation of the soil covering plate 42 itself to throw the soil toward the edge of the plastic film, thereby covering the soil on both sides of the plastic film.

[0045] In one embodiment, a differential pressure controller 09 is provided on the rack 01 , and the differential pressure controller 09 is installed on a hose at the outlet end of the air suction pump 07 .

[0046] The above disclosure is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A buckwheat film-covered hole-seeding device, characterized in that: It includes a frame, a furrow opener, a film covering mechanism, a soil covering mechanism, a hole sowing mechanism, and a pneumatic film pressing mechanism; The rear end of the frame is rotatably provided with a supporting wheel; The furrow opener is arranged at the front end of the frame; The film coating mechanism comprises a film roller support frame and a film coating wheel; the film roller support frame is arranged on the frame and located behind the furrow opener, and is used to install the plastic film roller; the film coating wheel is rotatably arranged on the frame and located behind the film roller support frame; The soil covering mechanism is arranged on both sides of the frame and is located behind the film covering wheel; The hole seeding mechanism is arranged at the rear of the frame; The pneumatic film pressing mechanism includes a fixed frame, an air distribution roller, and a fan; the fixed frame is arranged on the frame and is located between the film coating roller and the soil covering mechanism, the air distribution roller is arranged on the fixed frame, and the axis of the air distribution roller is parallel to the axis of the film roller supporting frame, the outer wall of the air distribution roller is provided with exhaust holes, and the two ends of the air distribution roller are provided with air inlet pipes, the fan is fixed on the frame, and the outlet end of the fan is connected with the air inlet pipe through a hose, so as to pass pressurized air into the air distribution roller, and then the pressurized air is sprayed toward the plastic film through the exhaust holes on the air distribution roller to form downward pressure on the plastic film.

2. The buckwheat film-covered hole-seeding device according to claim 1, characterized in that: The air distribution roller can rotate circumferentially, and an arc cover adapted to the shape of the air distribution roller is arranged on the fixed frame. The arc cover is located above the air distribution roller, and the arc cover can block the air sprayed upward when the air distribution roller rotates.

3. The buckwheat film-covered hole-seeding device according to claim 2, characterized in that: The air inlet pipe is fixed on the fixed frame, the air inlet pipe is rotatably connected with the air distribution roller, a first driven wheel is rotatably installed on the air inlet pipe, the first driven wheel and the air distribution roller are fixed by a connecting rod, a second driven wheel is arranged on the coating wheel, the second driven wheel and the first driven wheel are connected by a sprocket, so that the coating wheel can drive the second driven wheel, the first driven wheel and the air distribution roller to rotate when rotating.

4. The buckwheat film-covered hole-seeding device according to claim 1, characterized in that: The hole seeding mechanism comprises a hole seeding disc and a suppressing wheel; the hole seeding disc is arranged at the rear end of a frame, and the suppressing wheel is arranged on the frame and located behind the hole seeding disc.

5. The buckwheat film-covered hole-seeding device according to claim 4, characterized in that: The pressing wheel is tilted downward so that the pressing wheel forms an angle with the seeding disc, and the pressing wheel is connected to the frame through a torsion spring.

6. The buckwheat film-covered hole-seeding device according to claim 1, characterized in that: The frame is provided with an air suction pump for providing suction force for the hole-seeding and sowing mechanism, and the air suction pump is connected with the hole-seeding and sowing mechanism through a hose.

7. The buckwheat film-covered hole-seeding device according to claim 1 or 6, characterized in that: The frame is provided with a battery box for providing power to the fan and the air suction pump.

8. The buckwheat film-covered hole-seeding device according to claim 1, characterized in that: The soil covering mechanism comprises a fixing rod and a soil covering plate; the soil covering plate is arranged at the lower end of the fixing rod, and the fixing rod is arranged on both sides of the frame. The fixing rod can move up and down along the longitudinal direction of the frame to adjust the distance between the soil covering plate and the frame.

9. The buckwheat film-covered hole-seeding device according to claim 8, characterized in that: The soil covering plate is inclined toward the outside of the frame, and the soil covering plate and the axis of the frame are at 45 degrees.

10. The buckwheat film-covered hole-seeding device according to claim 7, characterized in that: The frame is provided with a differential pressure controller, which is installed on a hose at the outlet end of the air suction pump.

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