JPH1056830A - Irrigation device for transplanter - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To sprinkle water in a planting tube for planting seeded seedlings, to wash off soil attached to the inner surface of the planting tube, and to enable watering at the same time as planting work. A seedling planting device (31) for raising and lowering a planting tube (35) in a traveling vehicle traveling across a ridge (14) to plant a soiled seedling (28) while drilling a planting hole in the ridge (14). A seedling supply device for supplying the seedlings 28 one by one to 35 is mounted.
A watering means 80 for watering the soild seedling 28 to be watered and planted in the planting cylinder 35 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an irrigation device for a transplanter for planting buried seedlings of vegetables such as cabbage and lettuce in ridges.

[0002]

2. Description of the Related Art A transplanting machine of this type is provided with a planting tube for planting seedlings, which can be moved up and down. The planting tube has a pair of front and rear openers whose lower part is tapered and which can be opened and closed. Supply the seedlings inside the planting cylinder at the top, pierce the opener into the ridges while descending to form a planting hole, and open the opener while ascending to plant the seedlings inside the planting hole. I have to.

[0003]

In the transplanting machine of the prior art, soil of the seedlings may adhere to the seedling tube, particularly to the inner surface of the opener. It can make it worse and make planting in a normal posture difficult. In addition, there is no device for watering the seedlings, and the operation of spraying water or chemicals must be performed separately, which makes the watering operation very troublesome.

[0004] Watering can be performed by mounting the watering means on the transplanting machine. However, if the watering is performed on the soild seedling after planting at the rear of the planting tube, and the watering is performed before and after the planting operation. If the distance between the strains is changed, another problem such as difficulty in accurate irrigation occurs. The present invention provides an irrigation device for a transplanting machine in which watering is performed in a planting tube for planting seeded seedlings, and soil attached to the inner surface of the planting tube is washed off, and watering can be performed simultaneously with the planting operation. The purpose is to:

[0005] The present invention also provides a watering method in which a watering is performed in a planting tube descending to plant soild seedlings and watering is performed in synchronization with the lowering of the planting tube during planting operation. An object of the present invention is to provide an irrigation device for a transplanter that can wash off soil adhered to the inner surface, can perform good irrigation, and can smoothly plant planted seedlings. Furthermore, the present invention provides an irrigation device for a transplanting machine, which can perform better irrigation and smoother planting of soiled seedlings by irrigating when the planting cylinder enters the ridge. Aim.

[0006]

The first concrete means for solving the problems in the present invention is to raise and lower a planting tube 35 on a traveling vehicle 12 traveling across a ridge 14 and plant the plant on the ridge 14. Seedling planting device 31 for planting soild seedlings 28 while drilling holes
And a seedling supply device 30 for supplying the seedlings 28 one by one to the seeding tube 35,
Watering means 80 for watering the soild seedling 28 to be watered and planted therein is provided.

[0007] Thus, the soil adhered to the inner surface of the planting cylinder 35 is washed off, and the slip with the soiled seedling 28 is improved, and at the same time, the watering of the soiled seedling 28 is performed. The second specific means for solving the problem in the present invention is that the traveling vehicle 12 traveling across the ridge 14 is provided with a vertically long longitudinal elliptical locus on the planting cylinder 35 via the swing link mechanism 53. A seedling planting device 31 for raising and lowering while drawing K and planting seedlings 28 while drilling planting holes in the ridges 14, and taking out the seedlings 28 one by one from the seedling tray 33 and planting cylinder 35 In a transplanter equipped with a seedling supply device 30 for supplying water to the seedling supply 35, a watering means 80 for watering the soild seedling 28 to be watered and planted in the seeding tube 35 is provided. That is, an operating means 91 for spraying water by the watering means 80 is provided.

As a result, the soil adhering to the inner surface of the seedling cylinder 35 is washed off, the slip with the soild seedling 28 is improved, and the work of irrigating the soiled seedling 28 is performed more easily and better. A third specific means for solving the problem in the present invention is the second specific means.
In addition to the specific means described above, the operating means 91 is to detect the descent of the planting cylinder 35 or the swing link mechanism 53 when it enters the ridge 14, and to operate the watering means 80.

As a result, the water is reliably and accurately sprinkled on the inner surface and the planting holes when the planting tube 35 enters the ridges 14, so that the planting and irrigation of the soild seedlings 28 can be performed more favorably.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1, 3 and 4, the vegetable transplanter 11 is a walking type having a steering handle 13 at a rear portion of a traveling vehicle 12. Row 1 covered with film M
4 are planted at predetermined intervals.

The traveling vehicle 12 has a gantry 16 at the front,
An engine 17 is mounted on the gantry 16, and the engine 17 is covered with a hood 18. A transmission case 19 to which power is transmitted from the engine 17 is fixed to a rear portion of the gantry 16. A front portion of a main frame 15 formed of a square pipe or the like is fixed to a rear portion, and a rear portion of the main frame 15 is bent upward to form a steering handle 13.

The power from inside the transmission case 19 is supplied to a wheel transmission shaft 20 projecting to the left and right sides and to the wheel transmission shaft 2.
The first PT provided rearward from the left side and protruding left and right.
An O-shaft 21 and a second PTO shaft 22 projecting rearward and upward are taken out by three systems. Left and right driving wheels (rear wheels) 24 are supported on the left and right ends of the wheel transmission shaft 20 via a transmission case 23 that swings up and down around the axis, and are driven by a wrapping transmission 25 in the transmission case 23. The wheels 24 can be driven. This drive wheel 24 rolls in the groove between the ridges 14. Also, a pair of left and right front wheels 2 is provided at the front of the traveling vehicle 12.
6. A ridge height detection roller 27 is provided.

[0013] At the rear of the traveling vehicle 12, a transplanting work section 29 is provided.
Is provided. The transplanting operation unit 29 includes a seedling supply device 30 and a soil seedling 28 supplied from the seedling supply device 30.
Planting device 31 for planting on the ridge 14 by the planting cylinder 35
And a multi-film M in advance at a position where the seedling 28 is to be planted.
And a multi-film punching device 32 for punching a planting hole.

The seedling supply device 30 is driven by the rotation power of the second PTO shaft 22, and the planting device 31 and the multi-perforation device 32 are driven by the rotation power of the first PTO shaft 21.
The seedling supply device 30 is mounted on the main frame 15, and transfers the seedling tray 33 in which a large number of pot portions 33 a in which the seeded seedlings 28 are raised are arranged lengthwise and widthwise while transferring the seedling tray 33 in the horizontal and vertical directions. From the seedling tray 33, the soild seedling 28 is removed from the planting device 31 by a seedling removal claw 34 at a predetermined seedling removal position.
The soild seedlings 28 are taken out one by one, transferred to the upper part of the planting device 31, and then dropped into the planting cylinder 35 for charging.

The seedling tray 33 is made of resin and has flexibility, and is provided with a large number of pot portions 33a vertically and horizontally protruding from the rear surface, and the soild seedlings 28 are raised in each pot portion 33a. . A transmission shaft 37 connected to the second PTO shaft 22 is connected to a power receiving shaft 36 of the seedling supply device 30 via a universal joint.
The above operation is repeated by the power from.

The planting device 31 and the multi-film punching device 32 are connected to the first PTO shaft 21 of the transmission case 19.
It is provided on a device frame 38 which is pivotally supported by its front part so as to be vertically swingable. The device frame 38 is formed in a rectangular frame shape, and a drive shaft 41 is rotatably supported by left and right bearings 40 fixed at an upper portion in the middle of the front and rear directions.

A sprocket 42 is provided at the left end of the drive shaft 41, and a transmission chain 44 is wound around the sprocket 42 and a sprocket 43 provided at the left end of the first PTO shaft 21 to rotate the engine 17 A chain transmission means for transmitting power to the drive shaft 41 is configured. 4
5 is a chain case. In addition, a pressure reduction / cover soil roller 46 is provided at a rear portion of the device frame 38, and a rear end portion of the device frame 38 is suspended by the main frame 15 via a ridge following means (not shown). The apparatus frame 38 can swing up and down following the height of 14.

The multi-film perforating apparatus 32 has an electrothermal perforating means 47, which is connected to the apparatus frame 38 via a parallel link 48 so as to be vertically movable. A cam roller 50 is pivotally attached to the upper link 48a of the parallel link 48. This cam roller 50
Is adapted to roll on the outer periphery of a disc-shaped planar cam 51 provided on the drive shaft 41, and the cam roller 50 is moved by the weight of the perforating means 47 or by an urging means such as a tension spring. It is urged in the direction to press.

A concave portion is formed in a part of the cam 51 in the circumferential direction. When the cam roller 50 falls into the concave portion, the perforating means 47 moves downward, and the heating means provided at the lower end of the perforating means 47 is provided. By pressing the body 52 against the multi-film M, a planting hole is formed in the multi-film M. Further, the cam 51 is formed so as to raise the perforating means 47 immediately after perforating the multi-film M.
Is formed in an outer peripheral shape having a substantially constant distance from the axis of the drive shaft 41 so as to be held at the standby position at the upper limit.

The planting device 31 comprises a planting tube 35 which pierces the ridge 14 so as to plant the seedlings 28 supplied from the seedling supply device 30 on the ridge 14 at a predetermined interval. A swing link mechanism 53 for vertically moving the cylinder 35 up and down and moving it back and forth is mainly constituted. Swing link mechanism 53
Is provided with a first parallel link 54 whose upper end is pivotally supported by the device frame 38 so that the lower end can freely swing back and forth. A swing plate 55 is pivotally connected to the lower end of the first parallel link 54, The front end of the second parallel link 56 is pivotally connected to the swing plate 55, and the planting cylinder 35 is pivotally connected to the rear end of the second parallel link 56. The distal end of a crank arm 57 provided on the drive shaft 41 is pivotally connected to the upper link 56a of the second parallel link 56.

Therefore, the crank arm 57 is rotated by the power from the first PTO shaft 21 via the drive shaft 41, so that the first and second parallel links 54 and 56 move the planting cylinder 35 up and down and back and forth. , And draws a vertically long elliptical locus K in the front-rear direction,
When the planting tube 35 is pierced into the ridge 14 while traveling, the planting tube 35 does not substantially move forward with respect to the field.

In FIGS. 1 to 4, the planting tube 35 is a tube portion 35a having an opening having a rectangular shape in a plan view at the top, and is opened and closed in the front-rear direction with a mounting pin as a fulcrum below the tube portion 35a. A pair of front and rear openers 58F and 58R that can be freely provided are provided. The openers 58F and 58R are connected to the planting cylinder 35.
At the bottom dead center of the trajectory K in the closed state and enters the ridge 14
At the same time, the seedling 28 is opened back and forth by the action of the interlocking tool 61 pivotally connected to the front opener 58F and the device frame 38, and the soild seedling 28 is dropped and planted in the formed planting hole. I am getting it.

The front and rear openers 58F and 58R are urged by a tension spring 62 so as to always close when the interlocking member 61 is not operating. Front and back opener 58
Notched front and rear openings (not shown) are formed in the upper part on one side of F and 58R, and a scraper device 65 is provided on the rear side of the planting cylinder 35.

The scraper device 65 is mounted on the device frame 34.
An operation arm 68 whose upper part is pivotally supported by a support member 66 projecting upward at the rear part via a pin so as to be able to swing back and forth, and protruding inward in the left-right direction from the lower part of the operation arm 68, Inner and outer scrapers 69, 70F, 70R arranged behind the planting cylinder 35, and inner and outer scrapers 6
Guide means 71 for guiding the scraping operation of 9, 70F, 70R.

The guide means 71 has a guided portion 72 provided on the operating arm 68, and guide portions 73A and 73B fixed to the side surface of the tube portion 35a of the planting tube 35. The scraper device 65 moves the front outer scraper 70F forward and backward while being guided by the guide means 71 when the planting cylinder 35 is inserted into the ridge 14 and planted the seedlings 28 and is moved up by the swing link mechanism 53. The inner scraper 69 protrudes forward through the opening, the inner scraper 69 enters the interior through the front opening, and the rear outer scraper 70R abuts on the rear surface, and the front and rear outer sides of the openers 58F, 58R as the planting cylinder 35 rises. The soil attached to the wall surface and the inner wall surface is scraped off.

Numeral 80 denotes a watering means mounted on the transplanter 11. A bracket 81 is provided upright in the middle of the apparatus frame 38, and a watering nozzle 90 is attached to the bracket 81.
The water supply means 82 is connected to the watering nozzle 90. The sprinkling nozzle 90 is located in front of and above the planting cylinder 35 pierced into the ridges 14, is held in a holder 83 so as to be adjustable in the vertical direction, and is fixed by screws 84. The holder 83 has a mounting shaft 85 protruding in the orthogonal direction. The mounting shaft 85 passes through the bracket 81 and is fixed by a wing nut 86.

The angle of the holder 83 can be adjusted around the mounting shaft 85 by loosening the wing nut 86, and in combination with the vertical position adjustment of the watering nozzle 90, the watering position (water reaching position) of the watering nozzle 90 can be adjusted. ing.
The water supply means 82 includes an electric pump 87, a water tank 88 and / or
Or a chemical liquid tank 89 or the like, and an electric pump 87 can spray water or a mixed liquid of water and a chemical liquid such as a fertilizer or an insecticide toward the inner surface of the planting cylinder 35. A water supply path 92 connected to the electric pump 87 by a hose or the like is provided with an electromagnetic opening / closing valve 93 of an operating means 91 for opening / closing the water supply path 92.

The operating means 91 is provided with a limit switch, a microswitch, or another contact type or non-contact type sensor 94 on a support 95 projecting downward from a middle portion of the device frame 38. Is
When the second parallel link 56 has moved to the lowest position in order to push the planting cylinder 35 into the ridge 14, the lower link 56b of the second parallel link 56 operates to open the electromagnetic on-off valve 93. It has become.

Therefore, the solenoid on-off valve 93 is operated for a required time after the sensor 94 detects that the planting cylinder 35 has entered the ridge 14, and the water sent from the electric pump 87 is supplied to the watering nozzle 90. It is designed to supply quantities. At the time of watering by the watering means 80, the planting cylinder 35 is pierced into the ridge 14 after starting to descend, and
Can be carried out until the planting tube 35 descends, especially when the planting tube 35 is descending.
When the water is pierced, it is easy to dispose the watering nozzle 90 for watering from above, and it is convenient for the water to wash the inner surface of the planting tube 35 when watering is performed, and all the water is supplied to the planting hole. Can be dropped. When watering is performed when the planting cylinder 35 is at a lower position, the arrangement of the watering means 80 is easier and the watering accuracy is higher.

The irrigation means 80 is formed by drilling a plurality of holes in a long, left or right or front and rear pipe material to spray water over a wide range in the left or right or front and rear directions. A hole that penetrates through the hole 85 is formed as a long hole in the front and rear direction, and the sprinkling nozzle 90 is attached so as to be adjustable in the front and rear positions, and the sensor 94 of the operating means 91 is linked with the downward movement of the planting tube 35 or other planting tube 35. Or the electric pump 87 is driven and stopped by the sensor 94 without providing the electromagnetic opening / closing valve 93, or the electric pump 8
The water that flows out from the water tank 88, the chemical liquid tank 89, or the like by gravity may be made to flow out and stop by the electromagnetic on-off valve 93 without providing the 7.

In addition, when irrigation is not required, the water supply passage 92
It is preferable to provide a stop opening / closing valve, and it is preferable that the water tank 88, the chemical solution tank 89, and the like be mounted on or near the bonnet 18. FIG.
In the second embodiment, the watering nozzle 90 is positioned laterally upward with respect to the planting cylinder 35 pierced into the ridge 14, and is freely movable in the left-right direction via a solenoid 96 fixed to the main frame 15. Is held.

Then, in response to a signal from the sensor 94 of the operating means 91, the solenoid on-off valve 93 is opened, and at the same time, the solenoid 96 is operated to move the tip of the watering nozzle 90 to just above the planting cylinder 35, Water can be sprayed onto the planting cylinder 35 from just above for a required time. And planting cylinder 3
When 5 rises, solenoid 96 is demagnetized,
The watering nozzle 90 retreats from the locus K of the planting cylinder 35.

In the second embodiment, the watering nozzle 90 must be moved right and left by the solenoid 96. However, since watering can be performed from right above the planting tube 35, water can be evenly sprayed over the entire area of the planting tube 35. Irrigation can be done very well. still,
The water spray nozzle 90 is rotated by a solenoid 96 to reciprocate between a position directly above the planting cylinder 35 and a retreat position, or a pipe is bent in a substantially square shape in a plan view to form a large number of water jets on its lower surface. An outlet may be formed to allow water to be sprayed in a square.

6 and 7 show the perforating means 4 of the multi-film M.
7, a support rod 98 connected to the parallel link 48 is attached to a circular (or square) cylindrical body 97 made of a metal material such as stainless steel or steel pipe.
A plurality (three in the figure) of heaters 99 are arranged in the space 7, and the space between them is filled with a highly heat-resistant material 100 such as ceramic or glass fiber to be fixed. A metal heat plate 101 having a high thermal conductivity through which heat from the plurality of heaters 99 is conducted is fitted into the opening.

Reference numeral 102 denotes a flexible power supply cable.
7 is connected to a metal sheath 103 fixed thereto, and an energizing cable 104 is connected to the heater 99. In order to protect the power supply cable 102, the cylindrical body 97 and the sheath 10
3 is preferably formed of a metal having a low thermal conductivity.
The perforating means 47 heats the hot plate 101 with a plurality of heaters 99, contacts the hot plate 100 with the multi-film M in a descending operation, and melts (disappears) into a substantially circular (or square) shape to form a planting hole. I can pierce.

As the heater 99, a lighter plug used in a cigar lighter for an automobile can be used.
It can be manufactured at low cost with a commercial product. Further, although the heat plate 101 is formed by bending a metal plate into a spherical surface, the heat plate 101 may have a flat inner surface and a convex outer surface. 8 to 11 show that when seedlings are planted on ridges not covered with the multi-film M, the soil attached to the ridge height detection rollers 27 of the transplanter 11 is peeled off to improve the detection accuracy of the ridge height. Two scrapers for increasing the height are illustrated.

In the first example of the scraper shown in FIGS. 8 and 9, a scraper 108A is mounted on the arm 107 supporting the detection roller 27. This scraper 108
A is a belt formed in a V-shape in cross section, which is bent in a V-shape in a rear view at substantially the center in the width direction of the ridge 14 and arranged along the outer periphery of the detection roller 27. The soil attached to the surface is scraped off while being divided into right and left.

In the second example of the scraper shown in FIGS. 10 and 11, a scraper 108B is mounted on the arm 107 supporting the detection roller 27. This scraper 1
08B is to form the strip into a U-shaped cross section,
The detection roller 2 is slanted from the lower side in the width direction to the upper side in the other side.
7 are arranged along the outer circumference of the detection roller 27.
The soil attached to the surface is scraped off while moving to the other side.

Since the scrapers 108 of the first and second examples are released to the left and right while peeling the soil, the peeled soil does not become an obstacle to transplantation. Although the scraper 108 is located on the back side of the detection roller 27, it may be arranged on the upper side.
Note that the present invention is not limited to the above-described embodiment, and can be variously modified. For example, although the transplanter 11 is shown as a walking type, it may be a riding type or a tractor-traction type. The watering means 80 can also be employed when seedlings are planted on ridges not covered with the multi-film M.

[0040]

As described above in detail, according to the present invention, the watering means 80 for watering the soild seedling 28 to be watered and planted in the planting tube 35 is provided. The soil attached to the seedlings 28 can be washed out, and the slip of the soild seedlings 28 can be improved, and at the same time, the soiled seedlings 28 can be reliably irrigated.

Further, a watering means 80 for watering the soild seedling 28 to be watered and planted in the planting cylinder 35 is provided.
Since the operating means 91 for watering by the watering means 80 is provided in synchronization with the lowering of the seedlings, the soil attached to the inner surface of the planting cylinder 35 can be washed out, the slip of the seedling 28 can be improved, and The seedling 28 can be reliably and accurately watered, and the arrangement of the watering means 80 can be simplified.

Further, the operating means 91 detects the descent of the planting cylinder 35 or the swinging link mechanism 53 when it enters the ridge 14, and activates the watering means 80. At times, water can be surely and accurately sprayed on the inner surface and the planting hole, and the planting and irrigation work of the soild seedling 28 can be performed more favorably.

[Brief description of the drawings]

FIG. 1 is an explanatory side view showing an embodiment of the present invention.

FIG. 2 is an explanatory sectional view showing a main part of the present invention.

FIG. 3 is a plan view of the seedling planting apparatus.

FIG. 4 is a schematic side view showing the entire transplanter.

FIG. 5 is an explanatory sectional view showing a second embodiment of the watering means.

FIG. 6 is a cross-sectional view showing an example of a multi-film perforating means.

FIG. 7 is a sectional view taken along line XX of FIG. 6;

FIG. 8 is a rear view showing a first example of a ridge height detection roller scraper.

FIG. 9 is a sectional view taken along line YY of FIG. 8;

FIG. 10 is a rear view showing a second example of a ridge height detection roller scraper.

FIG. 11 is a sectional view taken along the line ZZ in FIG. 10;

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 transplanter 12 running vehicle 14 ridge 28 soil seedling 30 seedling supply device 31 seedling planting device 33 seedling tray 35 planting tube 38 device frame 53 swing link mechanism 80 watering means 90 watering nozzle 91 operating means 93 opening and closing valve 94 sensor

Claims (3)

[Claims] A traveling vehicle (12) running across a ridge (14) raises and lowers a planting tube (35) and removes a soild seedling (28) while drilling a planting hole in the ridge (14). A seedling planting device (31) to be planted and one seedling (28) in the planting cylinder (35)
In a transplanter equipped with a seedling supply device (30) for supplying seedlings one by one, a soil seedling (2) to be watered and planted in the planting tube (35).
8) An irrigation device for a transplanter, wherein an irrigation means (80) for performing irrigation is provided in 8). 2. A substantially elliptical locus (K) in the front-rear direction that is long in the vertical direction on a planting cylinder (35) via a swing link mechanism (53) on a traveling vehicle (12) traveling across a ridge (14). And a seedling planting device (31) for planting a seedling (28) while drilling a planting hole in a ridge (14) while drawing a seedling, and a seedling (28) from a seedling tray (33). In a transplanter equipped with a seedling supply device (30) that takes out one by one and supplies the seedling tube (35) to the seedling tube (35),
8) A watering means (80) for watering is provided in the planting cylinder (3).
An irrigation device for a transplanter, comprising an operating means (91) for watering by the irrigation means (80) in synchronization with the lowering operation of 5). 3. The operating means (91) is provided with a planting cylinder (35) or a swing link mechanism (5) when the ridge (14) is inserted.
The watering device of the transplanting machine according to claim 2, wherein the watering means (80) is operated by detecting the drop of (3).