JPH0646682A - Seedling transplanter - Google Patents

Abstract

PURPOSE:To provide a means for opening a transplantation hole on a mulching film in a state free from adverse effect on the transplanted seedling. CONSTITUTION:The objective seedling transplanter is provided with a hole- opening apparatus 37 for opening a transplantation hole D on a mulching film A to cover the surface of a field and an apparatus for bonding or welding the formed cut piece (a) of the mulching film A to the mulching film.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling planting machine for planting seedlings in a field covered with a mulch film having an opening device for forming a graft hole in the mulch film covering the surface of the field.

[0002]

2. Description of the Related Art As a conventional technique of this kind, there is a seedling planting machine provided with an opening device for making holes in a multi-film by a mechanical means such as a cutter.

[0003]

When a hole is made in the mulch film while advancing the machine body by a mechanical means such as a cutter or a needle as in the above-mentioned prior art, the cut piece formed when the hole is pierced is mulched film. If it is completely cut off from the plant, it will be difficult to collect all of these scraps, so these scraps will scatter in the field and contact the seedlings, adversely affecting the seedlings, or many scrapes will be scattered by the wind and become pollution. It was a thing. Therefore, it was attempted to leave a part of the mulch film without cutting it completely out of the mulch film and leave it in the mulch film, but to open a hole, but the scalp heated by the sun entangled with the seedling and killed the seedling. There was a situation that caused it.

[0004]

In order to solve the above-mentioned problems of the prior art, the present invention is formed when a transplant hole D is formed in a mulch film A covering a surface of a field with a hole opening device 37. The seedling planting machine is provided with a device for adhering or welding the cut edge a of the multi-film A to the multi-film A.

[0005]

According to the present invention, the cut end a of the multifilm A formed when the transplant hole D is opened in the multifilm A covering the surface of the field by the opening device 37 is adhered or welded to the multifilm A. Therefore, the cutting edge a is prevented from being entangled with the seedlings, the seedlings grow well, and the problems of the above-mentioned conventional techniques can be solved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vegetable seedling planting machine according to an embodiment of the present invention will be described in detail below with reference to the drawings. 1 is the mission case
On the left and right sides, wheel transmission cases 2.2 that face downward are rotatably provided, and the left and right drive wheels 3.3 are mounted on the tips of the wheel transmission cases 2.2. The left and right drive wheels 3.3
Is connected to the balance device 6 by connecting the upper ends of the swinging arms 4 and 4 integrally provided to the wheel transmission cases 2 and 2 to the balance device 6 via a connecting rod 5 and 5. Is tilted to the left or right (in the ridges with the mulch film A, the earth fill B is applied on the mulch film A between the ridges so that the mulch film A does not come off). The aircraft is so constructed that it can be adjusted to be almost horizontal.

An engine 7 is directly connected to the front end of the mission case 1. Reference numeral 8 denotes a clutch case having a centrifugal clutch therein, which is provided so as to transmit the power of the engine 7 to the mission case 1 when the rotation of the engine 7 reaches a certain level or more (more than the proper number of seedling transplanting work). . 9 is a planting part transmission case, and a transmission case 10
Is fixedly connected to the left rear wall of the mission case 1 via.

Reference numeral 11 denotes a sub-transplantation transmission case, which is fixedly connected to the rear part of the planting section transmission case 9 with an inclination toward the rear and upper side of the machine body. Reference numeral 12 denotes a handle support frame, the base portion of which is fixed to the upper end portion of the sub-plantation transmission case 11. Reference numeral 13 denotes a handle, and the handle support frame 1
It is fixed to the upper end of 2.

Reference numeral 14 is a seedling mount, which is a standing frame 15 and 15 on the left and right.
Seedling transfer belt 1 stretched around the bottom plate space of the frame made up of the front and rear bottom plates 16 and 17 in the front-back direction.
It has a structure in which 8 is provided. Reference numeral 19 is a belt winding drive roll, and 20 is a belt winding driven roll. Then, the belt winding drive roll 19 is rotated by a certain amount when the seedling placing table 14 reaches the left and right ends, so that the planting section transmission case 9 can be rotated.
It is driven via an appropriate intermittent drive mechanism having a driven cam 21 driven by a drive cam fixed to a more extended drive shaft. However, the seedling transfer belt 18 rotates a fixed amount (only one seedling width) when the seedling placing table 14 moves to the left and right ends, and the seedlings placed on the seedling placing table 14 are transferred to the seedling receiving frame described below. It is configured to be transported to 22.

Reference numeral 22 denotes a seedling receiving frame, which is located on the rear end side of the seedling mounting table 14 and is attached to the sub-planting transmission case 11, and a seedling take-out port is provided at the left and right central portions. Denoted at 23 is a seedling receiving rod made of a rod, which is a seedling placing table 14 above the seedling receiving frame 22.
Each of the seedling receiving rods 23 ... is fixed to a mounting plate 24 that is horizontally installed between the left and right standing frames 15 and fixed at equal intervals and the lower end is opened like a comb tooth. It is provided so as to support the rear side of the pot container. In addition, the seedling planting fixed claw 25 and the seedling planting movable claw 26, which will be described later, plunge into the seedling mounting table 14 with the seedling receiving rod 23 sandwiched therebetween and divide and hold one seedling (one pot container). To operate.

Reference numeral 27 denotes a front supporting roller of the seedling placing table 14, and the seedling placing table 14 is a rail 28 fixed to the lower surface of the front portion thereof.
While being mounted on the front support roller 27, a spiral shaft that is rotated by being transmitted by a seedling table moving case 9 ′ whose lower part is fixedly installed on one side of the planting section transmission case 9 It is laterally reciprocated by being driven by a general left and right drive mechanism 29 which is engaged with a spiral groove of a spiral shaft and moves left and right, and is constituted by a sliding cam connected to a bottom surface of the seedling stand 14. The rear side of the seedling mounting table 14 is supported by a slide rail 31 fixed to the rear lower surface of the seedling mounting table 14 by a guide rail 30 which is formed integrally with the seedling receiving frame 22 and has a square shape in a side view. ing.

Reference numeral 32 denotes a transplanting device, which is a box-shaped transplanter main body 33 having a hollow inside, and a seedling planting fixed nail 25 and a seedling planting movable nail 2
Wear two iron plate seedling planting nails and seedling separating tool 34 with 6,
The operation mechanism of the movable seedling planting pawl 26 is provided inside the main body 33 of the seedling planting device so that the seedling planting movable claws 26 can be operated such that the seedlings can be held or conversely opened. The seedling separating tool 34 is configured to move downward at the same speed as the rising speed of the seedling nails 25, 26 from the moment the seedlings 25, 26 release the held seedling. Even if the seedlings 25, 26 move upward from the position where the seedlings are planted in the field with the nails 25, 26, they are prevented from moving.

The main body 33 of the transplantation device 32 is pivotally attached to the first rotary case 35, the first rotary case 35 is pivotally attached to the second rotary case 36, and the transplantation device 32 is attached. 2 seedlings
A transmission mechanism is built in the first rotating case 35 and the second rotating case 36 so that the locus P drawn by the tips of 5.26 is narrow in the front-rear direction and long closed loop shape in the up-down direction. The base of the second rotating case 36 is pivotally attached to the sub-planted transmission case 11.

Reference numeral 37 denotes an opening device for opening a transplantation hole D at a position for planting mulch film seedlings.
Support shaft 38 that is welded and fixed to 0 and laterally suspended in the airframe
An upper swing link 42 rotatably and pivotally attached to each other by pivot shafts 40 and 41 in a state in which the base portion is fitted into the front view portal type mounting portion 39 fixed to The lower swing link 43, and an iron plate pivotally supported by the pivot shafts 44 and 45 at the tip end portions of the lower swing link 43 and the upper swing link 42 and the lower swing link 43 with the tip end portions thereof being fitted therein. A U-shaped plate 46, a hole forming tool 49 fixed to the U-shaped plate 46 with bolts 47 and nuts 48, and a drive shaft 50 extending from the planting part transmission case 9 and fixedly driven. The driven cam 5 including a cam 51 and a bearing rotatably supported by a pivot shaft 52 on the upper swing link 42 so as to be engaged with the drive cam 51.
3 and a winding spring 54 that acts to urge the lower swing link 43 in the direction a and pull up the hole opening device 37 upward. However, when the drive shaft 50 is driven and rotated, the drive cam 51 also rotates and engages with the driven cam 53, and when the upper swing link 42 is pushed down by the biasing force of the winding spring 54, the hole forming tool 49 is formed. The tip of the is configured to move downward. Then, the drive cam 51
Is provided with a cam surface 51 ′ that is operated so that the tip of the hole forming tool 49 is temporarily stopped at the lowermost end of its operation locus so as to open the transplant hole D in the multifilm. In addition, a return portion 55 is provided at the tip of the hole forming tool 49, so that the cut end a of the hole formed in the multi-film is scratched and pulled out upward.

Reference numeral 56 is a nozzle for ejecting glue (or an organic solvent that dissolves the mulch film), and is provided with a base portion fixed to a sensor 69 described later. Then, the nozzle 56 is a cut end of a hole formed in the multi-film by the hole forming tool 49 with glue (or an organic solvent that dissolves the multi-film) sent from the tank 57 mounted on the machine body by the ejection drive device 58. It is configured so that it can be ejected toward a. It should be noted that the ejection drive device 58 is used for the hole forming tool 4
When 9 is at the uppermost position, its piston 58 'is pressed by an operating arm 42' which rotates integrally with the upper swing link 42 and ejects glue (or an organic solvent that dissolves the mulch film). Has been done.

Numerals 59 and 59 are left and right rear wheels provided at the rear of the machine body at the rear of the left and right drive wheels 3 and 3, and are cylindrical bosses rotatably supported on both left and right sides of the support shaft 60. 61. 61. Arms 62. 62 fixed to 61. 61 are rotatably supported at the tips of the arms 62, 62, respectively, and the grounding points are the transplantation positions of the locus P drawn by the tips of the seedlings 25, 26 of the transplanter 32.
It is arranged so as to be located at substantially the same position as the front-rear direction of the machine body in a side view substantially in parallel with P ₁ . The bases of the rotating arms 63 and 63 are fixed to the cylindrical bosses 61 and 61, respectively, and the upper ends of the rotating arms 63 and 63 are connected to the balance through connecting rods 64 and 64 whose length can be adjusted by a turnbuckle. It is connected to both left and right sides of the device 6.

Reference numeral 65 denotes a hydraulic device, which is composed of a hydraulic cylinder 66 and a hydraulic valve 67, and is fixedly mounted on the transmission case 10. Reference numeral 68 denotes a hydraulic piston, which is mounted on the hydraulic cylinder 66 so as to be able to move back and forth in the lower direction, and the balance device 6 is mounted on the tip end thereof. On both left and right sides of the balance device 6, front end portions of connecting rods 64, 64 connected to the left and right rear wheels 59, 59, and rear end portions of the connecting rods 5, 5 connected to the left and right drive wheels 3, 3. Is pivotally supported by a pin, and the left and right rear wheels 59, 59 and the left and right drive wheels 3.3 are moved up and down by the withdrawal and retraction of the hydraulic piston 68 in the lower direction.

Reference numeral 69 denotes a sensor for detecting the upper surface of the ridge C, the lower part of which is brought into contact with the multi-film A on the upper surface of the ridge C to move up and down, and the upper part of which is linked to the hydraulic valve 67. The upper surface of the ridge C is detected so that the depth H is always constant, and the hydraulic valve 67 is switched to move the hydraulic piston 68 back and forth in the lower direction so that the left and right rear wheels 59, 59 and the left and right driving wheels 3 ,. 3 is configured to move up and down. The sensor 69 has a shape in which a central portion of a rear part thereof is cut out toward the front in a plan view, and the hole forming tool 49 is configured to move up and down through the cutout 69 ′. ing.

Numerals 70 and 70 are left and right mulching devices for bringing soil from the left and right sides of the seedlings planted on the upper surface of the ridge to surely plant the seedlings in the ridges by filling soil into the ridges, and are frustoconical left and right rolling wheels. It is composed by. Reference numerals 72, 72 are general left and right side clutch levers for turning on and off the left and right side clutches of the left and right driving wheels 3, 3 provided on the left and right wheel transmission cases 2.2, respectively.

Reference numeral 73 denotes a planting clutch lever that activates or deactivates the seedling stand 14, the transplanting device 32, and the opening device 37. A hydraulic lever 74 is linked to the hydraulic valve 67 via a connecting wire, and the left and right drive wheels 3, 3 and the left and right rear wheels 59, 59 are automatically moved up and down by the detection of the upper surface of the ridge of the sensor 69. Adjusted automatic control position and left and right drive wheels 3.3 and left and right rear wheels 59.5
9 is configured to be switchable to a machine body lift position for forcibly moving down.

Reference numeral 75 is a throttle lever for adjusting the rotation speed of the engine 7. 76 is a left and right wheel transmission case 2
2 is a transmission gear case mounted on the wheel drive shaft 77. The wheel drive shaft 77 has a gear 79 fitted to an angular shaft portion 78 formed at its tip and a gear rotatably fitted to the wheel drive shaft 77. 80 are provided, and the gears 79, 8 are provided on the support shaft 81.
Gears 82 and 83 having different numbers of teeth that mesh with 0 are loosely fitted and provided. The gears 82 and 83 are connected by a connecting cylinder body 84 so as to rotate integrally. And the gear 80
Is integrally provided with a drive sprocket 85 for driving the wheels 3. By changing the respective gears 79 and 80 and the gears 82 and 83 in the left and right transmission gear cases 76 and 76, the rotational speed of the wheels 3 and 3 can be changed and a required vehicle speed can be set. In other words, the planting pitch (between plants) of the seedlings by the transplanting device 32 can be freely changed, and it can be adapted from seedlings densely planted like green onions to seedlings roughly planted like leafy vegetables.

Next, the operation of the above example will be described. The left and right drive wheels 3, 3 and the left and right rear wheels 59, 59 of the vegetable seedling plant are so constructed that they straddle the ridge C in the field where the multi-film A is stretched. The engine 7 is started after setting and storing the pot-shaped vegetable seedlings grown by a paper-made nursery device in which pot containers are vertically and horizontally arranged on the seedling placing table 14 at predetermined intervals. When the throttle lever 75 is raised from the idling speed to the seedling planting speed, the power of the engine 7 is transmitted to each rotating portion via the centrifugal clutch in the clutch case 8, and the body is propelled by the rotation of the left and right drive wheels 3, 3. .

At this time, when the planted clutch lever 73 is operated to the clutch engaged position, the seedling table 14 is reciprocally rocked in the left and right directions by the power of the engine 7 through the left and right drive mechanism 29, so that the rear end side thereof is formed. The seedlings located at are moved to the left and right while being received by the seedling receiving frame 22, the seedlings are delivered to the seedling take-out port, and are sequentially picked up by the seedling planting claws 25 and 26 that draw the seedling planting locus P. On the other hand, the drive cam 51 fixed to the drive shaft 50 engages with the driven cam 53 provided on the upper swing link 42 of the hole opening device 37 to push the upper swing link 42 to the biasing force of the winding spring 54. And the hole forming tool 49 is lowered to open the transplant hole D in the mulch film A (FIGS. 4 and 5).
reference).

Then, when the hole forming tool 49 moves upward, the return portion 55 at the tip of the hole forming tool 49 scratches the cut edge a of the hole D formed in the multifilm A and pulls it upward, and the cut edge a. Since the glue (or the organic solvent that dissolves the mulch film) ejected from the nozzle 56 is applied to the sheet, when the cutting edge a is disengaged from the return portion 55 of the hole forming tool 49 and folded back on the mulch film A by the forward movement of the machine body (Fig. 6), the cut edge a is fixed on the mulch film A.

Then, the seedling planting nails 25, 26 holding the seedlings project into the hole D formed in the multi-film A, the seedling planting nails 25, 26 are separated from each other, and the seedlings are released. The separating tool 34 moves downward at the same speed as the upward movement of the seedling planting claws 25 and 26 to prevent the seedling from moving from its position, and the seedling is placed at that position for transplanting the seedling. After that, soil is brought to the seedlings from the right and left sides of the seedlings planted by the right and left soil gathering devices 70, 70, and the seedlings filled in the transplant hole D are planted in the ridges.

Further, the left and right driving wheels 3, 3 and the left and right rear wheels 59, 59 are automatically moved up and down by detecting the upper surface of the ridge of the sensor 69, and seedlings are always planted in the ridge at a predetermined planting depth. To be Although the seedling planting work is performed in this manner, since the cut edge a of the hole D formed in the multifilm A as described above is fixed on the multifilm A, the cut edge a hits the seedling and may damage the seedling. It is possible to prevent this, and the growth of seedlings after transplanting is good.

Further, the rear end face of the sensor 69 and the hole forming tool 4
Since the distance L1 from the upward movement locus of 9 is made small, the front multi-film A is pressed by the sensor 69 when the hole forming tool 49 moves upward, and when the hole forming tool 49 moves upward. It is possible to prevent a situation where soil is scraped under the mulch film A in front (FIG. 7 shows an example in which the distance L2 between the rear end surface of the sensor 69 and the upward movement locus of the hole forming tool 49 is increased, and If it is increased, the soil will be scraped under the mulch film A in front when the hole forming tool 49 moves upward, and the mulch film will be lifted up, and the leaves of the seedling will contact the mulch film and hurt and die the seedling. Will happen).

In the above embodiment, an example in which glue or an organic solvent is applied to the cut edge a of the mulch film is shown.
The same effect can be obtained by applying glue or an organic solvent to the mulch film immediately before opening the holes and then making holes in the mulch film applied with the hole forming tool 49. Further, when the cut edge a comes off the return portion 55 of the hole forming tool 49 and is folded back onto the multi-film A, a needle with glue or an organic solvent is pierced at the overlapping portion of the cut edge a and the multi-film A. The spot adhesion method has the same effect.

[Brief description of drawings]

[Figure 1] Overall side view of vegetable seedling planting machine

[Fig. 2] Side view of main parts

FIG. 3 is a sectional view showing a transmission structure of a wheel transmission case 2.2.

FIG. 4 is a sectional view for explaining the operation.

FIG. 5 is a sectional view for explaining the operation.

FIG. 6 is a sectional view for explaining the operation.

FIG. 7 is a sectional view for explaining an operation showing a comparative example.

[Explanation of symbols]

 14 seedling mounting table 32 transplanting device 37 opening device 49 hole forming tool A multi-film B earth fill C ridge D transplant hole a cut piece

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Motoyuki Suzuki, No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture, Engineering Department, Iseki Agricultural Machinery Co., Ltd. (72) Inventor Hiroshi Fumita 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Izeki Agricultural Machinery Co., Ltd. (72) Inventor Hiroshi Nishizaki, 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A device for adhering or welding a cut edge a of the multifilm A formed when the transplant hole D is formed in the multifilm A covering the surface of the field with the perforation device 37 to the multifilm A. Seedling planting machine.