Agricultural material injection device

Abstract

An agricultural material injection device has been in demand that, while maintaining a compact shape without increasing the overall size of the device, causes no problems such as crushing of agricultural material and clogging thereof and can forcefully inject the agricultural material toward a supply target location. This agricultural material injection device comprises: a gas supply section 32 that supplies gas; an injection mechanism that injects agricultural material to a supply target position by blowing the gas that has been supplied by the gas supply section 32 and compressed; and a control section H that controls the operation of the gas supply section 32 and the injection mechanism. A material supply module MJ is configured by assembling the gas supply section 32, the injection mechanism, and the control section H into a unitary structure.

Description

Agricultural material injection device

[0001] The present invention relates to an agricultural material injection device that supplies granular agricultural materials, such as seeds and fertilizer, to a supply location.

[0002] A conventional seed drill, which is an example of an agricultural material ejection device, is configured as follows: It includes a tank for storing seeds, which are an example of agricultural material, a delivery mechanism that delivers the seeds from the bottom of the tank, a shooter unit that shoots the delivered seeds into a field, and a cylindrical guide body that extends vertically and guides the seeds delivered by the delivery mechanism to the shooter unit. The shooter unit includes a rotor that has multiple blades extending radially and is driven to rotate at high speed, and is configured so that the seeds that are delivered by the delivery mechanism and fall downward through the inside of the guide body are ejected downward by the blades of the rotor (see, for example, Patent Document 1).

[0003] International Publication No. WO2021-182108

[0004] In the above-described conventional configuration, the blades must be used to forcefully eject agricultural materials downward, requiring the rotor to rotate at high speed. However, since the agricultural materials fall freely relative to the rotor rotating at high speed, they do not necessarily enter the upstream side of the blades in the direction of rotation. For example, the agricultural materials may become caught between the tip of the blades and the inner surface of the cylindrical guide. In such a situation, the blades may press the agricultural materials against the inner surface of the guide with such force that the agricultural materials may be crushed or may become jammed due to the agricultural materials being caught.

[0005] Therefore, there was a demand for an agricultural material injection device that was compact in shape, did not cause problems such as crushing or clogging of agricultural materials, and was capable of forcefully injecting agricultural materials toward the destination without increasing the size of the entire device.

[0006] The characteristic configuration of the agricultural material injection device of the present invention is that it is equipped with a gas supply unit that supplies gas, an injection mechanism that injects agricultural material to a supply location by spraying gas that has been supplied and compressed by the gas supply unit, and a control unit that controls the operation of the gas supply unit and the injection mechanism, and the gas supply unit, the injection mechanism, and the control unit are assembled into a unit to form a material supply module.

[0007] According to the present invention, the control unit controls the operation of the gas supply unit and the injection mechanism so that the injection mechanism compresses the gas supplied by the gas supply unit and ejects the compressed gas to eject the agricultural material toward the target location. The agricultural material can be supplied to the target location using the ejected gas. The agricultural material is only acted upon by the compressed gas, and does not collide with any fast-moving objects, so the agricultural material will not be caught between objects.

[0008] Furthermore, because the gas supply unit, injection mechanism, and control unit are assembled as a unit, the entire device can be stored in a compact shape compared to a configuration in which they are separated and each is housed in a separate casing and supported by a support frame or the like.

[0009] Therefore, it is possible to obtain a compact agricultural material injection device that does not cause problems such as crushing or clogging of agricultural materials, and is capable of forcefully injecting agricultural materials toward the destination without increasing the size of the entire device.

[0010] In the present invention, it is preferable that a frame is provided that supports the gas supply unit, the injection mechanism, and the control unit and that surrounds the entire material supply module.

[0011] According to this configuration, the gas supply unit, injection mechanism, and control unit are stably supported by the frame that surrounds the entire unit, with little risk of damage due to contact with external objects.

[0012] In the present invention, it is preferable that the injection mechanism includes a cylinder tube extending in the vertical direction, a piston that slides within the cylinder tube, and a gas ejection section that ejects compressed gas supplied to the internal space of the cylinder tube downward from the lower part of the cylinder tube as the piston moves.

[0013] According to this configuration, gas is supplied to the internal space of the cylinder tube and compressed while the piston is stopped. Then, as the piston moves, the compressed gas is ejected downward from the gas ejection part. The ejected gas injects agricultural materials into the target area. This configuration can be achieved with a simple structure in which the gas is compressed and ejected by the movement of the piston.

[0014] In the present invention, it is preferable that the gas supply unit, the control unit, and the cylinder tube are arranged side by side at the upper part of the material supply module, the gas ejection unit extends downward from the lower part of the cylinder tube through the lower part of the material supply module, and the lower end of the material supply module is provided with a ground support unit that supports the material supply module in an upright position.

[0015] According to this configuration, the gas outlet preferably has a long guide path in the vertical direction so that the agricultural materials are injected while the gas is being ejected downward. Therefore, by arranging the gas supply unit, control unit, and cylinder tube side by side at the upper part and extending the gas outlet from the upper part to the lower part, the entire module can be arranged efficiently and compactly.

[0016] In the present invention, it is preferable that the injection mechanism is provided with gas supply / exhaust means that can be switched between a supply state in which gas is supplied to the internal space of the cylinder tube and an open state in which the internal space is opened to the outside, and that when the gas supply / exhaust means is switched to the supply state, gas is supplied to the internal space of the cylinder tube and compressed, and when the gas supply / exhaust means is switched to the open state, the gas compressed in the internal space is discharged to the outside of the cylinder tube.

[0017] According to this configuration, the gas supply / exhaust means can supply gas into the internal space of the cylinder tube and compress it, and then expel the compressed gas to the outside of the cylinder tube, thereby enabling agricultural materials to be efficiently ejected.

[0018] In the present invention, it is preferable that the injection mechanism includes a plurality of sets of the cylinder tube, the piston, and the gas ejection portion.

[0019] According to this configuration, the cylinder tube, piston, and gas ejector are grouped together, and multiple sets of these are provided. These multiple sets can simultaneously eject agricultural materials, making it possible to efficiently eject agricultural materials.

[0020] In the present invention, it is preferable that the gas supply unit is a compressor having a power source.

[0021] According to this configuration, the compressor uses a drive source, such as an electric motor, whose rotation speed is easily adjusted. Therefore, when gas is supplied to the internal space of the cylinder tube, the pressure of the gas being compressed can be changed and adjusted by controlling the operation of the drive source.

[0022] FIG. 1 is a front view showing the work system; FIG. 2 is a plan view showing the work system; FIG. 3 is a side view of the seeding device; FIG. 4 is a longitudinal sectional view of the injection mechanism; FIG. 5 is an explanatory view of the operation of the injection mechanism; FIG. 6 is a schematic perspective view of the material supply module; FIG. 7 is a plan view of the material supply module; FIG. 8 is a front view of the material supply module; and FIG. 9 is a side view of the material supply module.

[0023] An embodiment of the present invention will be described with reference to the drawings. In the following description, unless otherwise specified, the direction of the arrow FR shown in Fig. 2 will be referred to as "front," the direction of the arrow BK will be referred to as "rear," the direction of the arrow LH shown in Figs. 1 and 2 will be referred to as "left," and the direction of the arrow RH will be referred to as "right." The direction of the arrow UP shown in Fig. 1 will be referred to as "up," and the direction of the arrow DW will be referred to as "down."

[0024] 1 and 2 show a work system for supplying agricultural materials to a field. The work system includes a work unit A equipped with multiple seeding devices 1 as an example of an agricultural material injection device according to the present invention, an unmanned aerial vehicle B known as a drone, and multiple connecting bodies C that suspend and support the work unit A from the aerial vehicle B. The aerial vehicle B is configured to be able to fly independently. The aerial vehicle B has a main body 4, multiple propellers 5, and multiple arms 6.

[0025] Although the number of propellers 5 and arms 6 is not particularly limited, in this embodiment, there are four propellers 5 and four arms 6. The four arms 6 extend from the main body 4 to the left front, right front, left rear, and right rear, respectively.

[0026] Each propeller 5 is driven by the driving force of an electric motor (not shown). Driving each propeller 5 enables flying vehicle B. That is, by driving each propeller 5, flying vehicle B can move up and down, forward and backward, and left and right while floating in the air. Driving each propeller 5 enables flying vehicle B to fly while stationary.

[0027] The seeding device 1 is suspended and supported by the main body 4 via a plurality of connectors C (e.g., wires). A plurality of seeding devices 1 are provided, spaced apart in the left-right direction, and are assembled together to form the working unit A. Although the example shows a case in which there are four connectors C, the number is not limited to four and may be changed.

[0028] The sowing device 1 can deliver seeds, which are an example of agricultural materials, to a field by shooting them. Although not described in detail, the flight state of the flying object B is managed so that the sowing device 1 moves along the path to sow seeds. At this time, the flying object B may repeat a movement operation and a position stop operation, and sowing work may be performed while the flying object B is stopped in position. Sowing work may also be performed while the flying object B moves continuously.

[0029] Although not shown, the aircraft B is equipped with a well-known satellite positioning device and a flight control unit that controls the drive of each propeller 5 to control the movement of the aircraft B. The satellite positioning device receives GNSS (Global Navigation Satellite System) signals from artificial satellites and generates positioning data indicating the position of the aircraft B based on the received signals. GNSS can be GPS, QZSS, Galileo, GLONASS, BeiDou, or the like. The flight control unit controls the drive of each propeller 5 so that the aircraft B moves along a predetermined work route based on the measurement results of the satellite positioning device and preset map data of the field.

[0030] Next, we will explain the configuration of the seeding device 1. As shown in Figure 3, the seeding device 1 includes a hopper 7 as a storage unit for storing seeds, a delivery unit 8 that delivers the seeds stored in the hopper 7, and an injection mechanism 10 that ejects the seeds delivered by the delivery unit 8 from an injection port 9 into a field W as a supply location.

[0031] The hopper 7 has a storage space surrounded by side walls. An opening is formed at the top of the storage space, and a large number of seeds N can be added. After the seeds N are added, the opening is closed with a removable lid 13. The bottom of the hopper 7 is provided with a flow-down guide section 11 that tapers downward. The seeds N can be discharged downward from the bottom of the flow-down guide section 11, and a delivery roller 14 is provided at the discharge point.

[0032] The delivery roller 14 is supported rotatably around a left-right axis X1. Recesses 16 into which seeds N can fit are formed on the outer periphery of the delivery roller 14. Multiple recesses 16 are formed at regular intervals around the circumferential direction. The delivery roller 14 is formed with a narrow width along the rotation axis so that one or several seeds N can fit into each recess 16. The delivery roller 14 is driven to rotate around the axis X1 by an electric motor (not shown).

[0033] As the delivery roller 14 rotates, the seeds N that have entered the recess 16 are discharged downward. A cylindrical supply section 17 that guides the seeds N discharged from the delivery roller 14 is provided at the bottom of the hopper 7.

[0034] An ejection mechanism 10 is provided on the side of the feeding section 8, and the seeds N fed from the feeding section 8 are ejected by the ejection mechanism 10 and supplied vigorously toward the field W.

[0035] The sowing device in an embodiment of the present disclosure is equipped with a compressor 32 as a gas supply unit that supplies gas, an injection mechanism 10 that injects seeds N into a field W by spraying the gas supplied and compressed by the compressor 32, and a control unit H that controls the operation of the compressor 32 and the injection mechanism 10.

[0036] [Injection Mechanism] The injection mechanism 10 includes a cylinder tube 21 extending in the vertical direction, a piston 22 that slides within the cylinder tube 21, a gas ejection section 20 that ejects compressed gas supplied to the internal space of the cylinder tube 21 downward from the bottom of the cylinder tube 21 as the piston 22 moves, and a gas supply / exhaust means 23 that can be switched between a supply state in which gas is supplied to the internal space of the cylinder tube 21 and an open state in which the internal space is opened to the outside.

[0037] The gas supply / exhaust means 23 is switchable between a supply state in which gas is supplied to the internal space of the cylinder tube 21 and an open state in which the internal space is opened to the outside. The gas supplied to the internal space and compressed is discharged to the outside of the cylinder tube 21 from a discharge portion 24 formed at the bottom of the cylinder tube 21 as the piston 22 moves.

[0038] The gas ejection part 20 is provided in a state in which it is in communication with the discharge part 24, and is composed of a cylindrical guide member 25. The guide member 25 has an inner diameter smaller than the inner diameter of the cylinder tube 21 and large enough for the seeds to pass through.

[0039] The injection mechanism 10 will be described in detail. As shown in Figure 4, the injection mechanism 10 includes a cylinder tube 21 and a piston 22 that slides within the cylinder tube 21. The cylinder tube 21 includes an internal space that includes a first gas chamber 26 and a second gas chamber 27. The first gas chamber 26 is located on one side of the piston 22 in the sliding direction. The second gas chamber 27 is located on the other side of the piston 22 in the sliding direction.

[0040] A rod 28 extending along the sliding direction is provided on one side of the piston 22 in the sliding direction, and a discharge portion 24 is provided at one end of the cylinder tube 21 in the sliding direction. The discharge portion 24 is configured by forming an opening in one sealing block body 29 that is inserted along the sliding direction. The end of the rod 28 on one side in the sliding direction can be inserted into the opening of the discharge portion 24.

[0041] When one end of the rod 28 in the sliding direction is inserted into the opening of the discharge portion 24, the discharge portion 24 is closed (the state shown in FIG. 4 ). When the rod 28 slides to the other side in the sliding direction, the rod 28 comes out of the opening and opens the discharge portion 24. That is, as the piston 22 moves, the rod 28 can be switched between a closed state in which the rod 28 closes the discharge portion 24 and an open state in which the rod 28 opens the discharge portion 24 and allows gas to be ejected.

[0042] A gas supply / exhaust means 23 is provided which can be switched between a supply state in which gas is supplied to each of the first gas chamber 26 and the second gas chamber 27 of the cylinder tube 21, and an open state in which the first gas chamber 26 and the second gas chamber 27 are open to the outside.

[0043] 4, the gas supply / discharge means 23 includes a first switching valve 33, a check valve 34, a second switching valve 35, and a quick discharge valve 36. The gas supply / discharge means 23 switches the supply state of gas from the compressor 32.

[0044] The first switching valve 33 is switchable between a supply state in which gas is output from the compressor 32 to the first gas chamber 26 and a stop state in which the output is stopped. The second switching valve 35 is switchable between a supply state in which gas is output from the compressor 32 to the second gas chamber 27 and a stop state in which the output is stopped. When the second switching valve 35 is switched to the supply state, the quick discharge valve 36 allows gas to be supplied to the second gas chamber 27. When the second switching valve 35 is switched to the stop state, the check valve 34 prevents backflow toward the second switching valve 35, and the quick discharge valve 36 is switched to a state in which the second gas chamber 27 is suddenly opened to the outside.

[0045] The quick discharge valve 36 has a well-known configuration and includes an inlet portion 36a to which gas is supplied from the second switching valve 35, and a discharge portion 36b through which gas is discharged from the second gas chamber 27. The quick discharge valve 36 also includes a silencer 36c (see FIG. 5) that suppresses discharge noise when gas is discharged from the second gas chamber 27.

[0046] When the rod 28 is in the closed state, the gas supply / discharge means 23 can supply gas to the first gas chamber 26 and the second gas chamber 27. When gas is supplied to the first gas chamber 26 and the second gas chamber 27, the gas is compressed in each of the first gas chamber 26 and the second gas chamber 27, and the internal pressure increases. At this time, the rod 28 is maintained in the closed state due to the difference in the area of ​​the pressure acting surface of the piston 22. Then, when the gas supply / discharge means 23 thereafter switches from the supply state to the open state, the compressed gas inside the second gas chamber 27 is released, the rod 28 switches to the open state, and the compressed gas is discharged from the discharge portion 24.

[0047] A central sealing block 37 is provided midway in the sliding direction of the cylinder tube 21. The central sealing block 37 is hollow to allow the rod 28 to pass through. The piston 22 is slidable between the central sealing block 37 and the other sealing block 38.

[0048] The cylinder tube 21 is provided with a first air supply section 39 and a second air supply section 40. Gas is supplied to the first air supply section 39 from the first selector valve 33. Gas is supplied to the second air supply section 40 from the second selector valve 35 via the quick exhaust valve 36. The first air supply section 39 is provided in the central sealing block 37. The second air supply section 40 is provided in the other sealing block 38.

[0049] A control device 45 is provided that controls the operation of the compressor 32, the first selector valve 33, and the second selector valve 35. The control device 45 has a microcomputer and is configured to execute various operations in the form of a control program. The control device 45 is configured to control the operation of the compressor 32, the first selector valve 33, and the second selector valve 35 according to a preset control program. Therefore, the first selector valve 33, the second selector valve 35, and the control device 45 constitute a seeding control unit H that serves as a control unit that controls the operation of the compressor 32 and the injection mechanism 10.

[0050] 3 and 4, a guide member 25 constituting the gas ejection section 20 is provided on one outer side in the sliding direction of the cylinder tube 21. The guide member 25 is connected to communicate with the opening of the ejection section 24. The gas ejected from the ejection section 24 is guided downward through the guide member 25 and ejected from the injection port 9 at the tip.

[0051] When the rod 28 is switched to the open state with the gas compressed in the internal space of the cylinder tube 21, the gas in the internal space does not suddenly expand at the discharge part 24, but is guided to the injection port 9 through the inside of the guide member 25 while maintaining a high pressure. The gas passing through the inside of the guide member 25 can eject the seeds N forcefully downward.

[0052] The guide member 25 is detachably attached to the discharge portion 24 of the cylinder tube 21. As shown in Figure 4, a flange portion 25A is provided on the outer periphery of the upper end of the guide member 25, and this flange portion 25A is bolted to the end of the cylinder tube 21. The guide member 25 can be removed from the cylinder tube 21 by releasing the bolt connection.

[0053] The supply unit 17 is connected to the guide member 25 midway in the vertical direction to form the seed supply unit 41. The seeds N fed from the feed unit 8 are fed into the guide member 25 through the supply unit 17. The fed seeds N are ejected toward the field by gas forcefully ejected from the discharge unit 24.

[0054] [Operation of Injection Mechanism] Next, a description will be given of the operation of the injection mechanism 10. These operations are controlled by the control device 45 in accordance with a preset control program.

[0055] 5(a), both the first gas chamber 26 and the second gas chamber 27 are open. When the second switching valve 35 is switched to the supply state, gas is supplied to the second gas chamber 27 of the cylinder tube 21.

[0056] As shown in FIG. 5B, when gas is supplied to the second gas chamber 27, the piston 22 slides to one side in the sliding direction, and the rod 28 switches to a closed state in which it closes the discharge portion 24.

[0057] 5(c), when the supply of gas to the second gas chamber 27 continues and the supply of gas to the first gas chamber 26 begins, the internal pressure of each of the first gas chamber 26 and the second gas chamber 27 increases due to the compression of the gas. This state corresponds to the supply state of the gas supply / discharge means 23. At this time, the rod 28 is maintained in a closed state. That is, because the area of ​​the pressure acting surface of the piston 22 on the second gas chamber 27 side is larger than the area of ​​the pressure acting surface on the first gas chamber 26 side, the piston 22 is pushed toward the first gas chamber 26 side, and the rod 28 is maintained in a closed state.

[0058] As shown in FIG. 5( d ), when the first switching valve 33 is switched to the stopped state, the compressed gas stored in the second gas chamber 27 is discharged to the outside through the quick discharge valve 36 .

[0059] 5(e), as the internal pressure of the second gas chamber 27 decreases, the piston 22 moves to the other side in the sliding direction (toward the second gas chamber 27) due to the pressure difference between the first gas chamber 26 and the second gas chamber 27, and the rod 28 opens. This operation corresponds to the gas supply / discharge means 23 switching to the open state.

[0060] As a result, the discharge section 24 is opened, and the compressed gas held in the first gas chamber 26 is forcefully discharged from the discharge section 24. The gas forcefully discharged from the discharge section 24 is then guided to the injection port 9 via the guide member 25, and the seeds N fed from the feeding section 8 are injected toward the field.

[0061] [Material Supply Module] In the agricultural material injection device of this embodiment, the material supply module MJ is configured by assembling a compressor 32, an injection mechanism 10, and a sowing control unit H as a unit. In addition, a frame F is provided that supports the compressor 32, the injection mechanism 10, and the sowing control unit H and surrounds the entire material supply module.

[0062] The compressor 32, seeding control unit H, and cylinder tube 21 are arranged side by side in that order at the upper part of the material supply module MJ. The gas ejection unit 20 extends downward from the lower part of the cylinder tube 21 through the lower part of the material supply module MJ. A ground support unit 46 is provided at the lower end of the material supply module MJ to support the material supply module MJ in an upright position. The side by side arrangement order of the compressor 32, control unit H, and cylinder tube 21 is not limited to this configuration and may be changed as appropriate.

[0063] As shown in Figures 6 to 9, the frame F includes four support columns 47, four upper frame bodies 48, four lower frame bodies 49, four intermediate frame bodies 50, and a connector 51. The four upper frame bodies 48 connect the upper ends of the support columns 47 together. The four lower frame bodies 49 connect the lower ends of the support columns 47 together. The four intermediate frame bodies 50 connect the upper and lower intermediate portions of the support columns 47 together. The connector 51 connects the intermediate portions of the front and rear intermediate frame bodies 50 together. The frame F configured in this manner surrounds the entire material supply module MJ.

[0064] The compressor 32 is supported by the front and rear intermediate frames 50 and the connecting body 51. The seeding control unit H is supported by the front and rear intermediate frames 50 and the connecting body 51 in a state aligned side by side with the compressor 32. The cylinder tube 21 of the injection mechanism 10 is supported by the intermediate frame 50 in a state aligned side by side with the seeding control unit H. Therefore, the compressor 32, the seeding control unit H, and the cylinder tube 21 are arranged side by side at the upper portion of the material supply module MJ.

[0065] The lower ends of the four support columns 47 protrude slightly downward from the lower frame 49, and these protruding portions form ground support portions 46. The material supply module MJ can be stably supported on the ground by the four ground support portions 46. Therefore, the ground support portions 46 that support the material supply module MJ in an upright position are provided at the lower end of the material supply module MJ.

[0066] The gas outlet 20 is formed long in the vertical direction and extends downward from the lower end of the cylinder tube 21. Therefore, the gas outlet 20 extends downward from the lower part of the cylinder tube 21 through the lower part of the material supply module MJ.

[0067] By configuring the material supply module MJ in this way, the entire device can be housed in a compact shape. It is preferable to arrange the hopper 7, the delivery unit 8, etc. above the material supply module MJ in order to allow the seeds to flow down toward the injection mechanism 10. The empty space below the material supply module MJ may be used as a storage unit for storing spare seeds or as a storage unit for storing other devices.

[0068] [Other Embodiments] (1) One material supply module MJ may be configured to include a plurality of sets of cylinder tubes 21 each having a piston 22 and gas ejection units 20. With this configuration, seeds (agricultural materials) can be ejected from the plurality of gas ejection units 20 simultaneously.

[0069] (2) The gas supply unit (compressor 32), injection mechanism 10, and seeding control unit H may each be enclosed in a separate frame, and these may be integrally connected and fixed to each other to form a material supply module.

[0070] (3) Instead of the compressor 32, the gas supply source may be configured as follows. For example, various configurations can be employed, such as a configuration in which a liquid substance that vaporizes easily is stored in a tank, and the liquid vaporizes from the internal space of the tank via an on-off valve, and the gas that expands rapidly is ejected from a discharge portion via the on-off valve, and a configuration in which a piston is slid using an actuator to increase the pressure in the internal space of a cylinder tube.

[0071] (4) The gas compression unit 18 may be configured to supply gas from the gas supply source only to the second gas chamber 27, and include a backflow prevention unit that moves gas in only one direction from the second gas chamber 27 to the first gas chamber 26, thereby compressing gas not only in the second gas chamber 27 but also in the first gas chamber 26. In this case, the configuration can be simplified.

[0072] (5) The agricultural materials to be sprayed are not limited to seeds; fertilizers, chemicals, etc. may also be sprayed.

[0073] (6) The flying vehicle B may be a drive system in which the propeller is driven by an internal combustion engine, or may be a parallel hybrid drive system in which the propeller is driven by both an electric motor and an internal combustion engine. It may also be a series hybrid drive system in which a generator is driven by an internal combustion engine and the generated electricity drives an electric motor. The flying vehicle is not limited to being unmanned, and may also be piloted by a person.

[0074] (7) Instead of the flying object B, the flying object may be configured to be supported by a traveling vehicle.

[0075] The present invention can be applied to an agricultural material injection device that supplies granular agricultural materials such as seeds and fertilizer to a supply location.

[0076] REFERENCE SIGNS LIST 10 Injection mechanism 20 Gas ejection section 21 Cylinder tube 22 Piston 23 Gas supply / exhaust means 32 Compressor (gas supply section) 46 Ground support section H Seeding control section (control section) MJ Material supply module

Claims

1. An agricultural material injection device comprising a gas supply unit for supplying gas, an injection mechanism for injecting agricultural materials to a supply location by ejecting the gas supplied and compressed by the gas supply unit, and a control unit for controlling the operation of the gas supply unit and the injection mechanism, wherein the gas supply unit, the injection mechanism, and the control unit are assembled in a unit form to constitute a material supply module.

2. The agricultural material injection device according to claim 1, further comprising a frame that supports the gas supply unit, the injection mechanism, and the control unit and surrounds the entire material supply module.

3. The agricultural material injection device according to claim 1, wherein the injection mechanism includes a cylinder tube extending in the vertical direction, a piston sliding in the cylinder tube, and a gas ejection unit for ejecting the compressed gas supplied to the internal space of the cylinder tube downward from the lower part of the cylinder tube as the piston moves.

4. The agricultural material injection device according to claim 3, wherein the gas supply unit, the control unit, and the cylinder tube are arranged side by side at an upper portion of the material supply module, the gas ejection unit extends downward from the lower part of the cylinder tube through a lower portion of the material supply module, and a grounding support portion for supporting the material supply module in an upright posture is provided at a lower end of the material supply module.

5. The agricultural material injection device according to claim 3, wherein the injection mechanism is provided with gas supply and discharge means that can be switched between a supply state in which gas is supplied to the internal space of the cylinder tube and an open state in which the internal space is opened to the outside. When the gas supply and discharge means is switched to the supply state, gas is supplied and compressed into the internal space of the cylinder tube, and when the gas supply and discharge means is switched to the open state, the compressed gas in the internal space is discharged to the outside of the cylinder tube.

6. The agricultural material injection device according to claim 3, wherein the injection mechanism includes a plurality of sets of the cylinder tube, the piston, and the gas ejection unit.

7. The agricultural material injection device according to any one of claims 1 to 6, wherein the gas supply unit is a compressor having a power source.

Images