JPH01309611A - Method for transplanting seedling and apparatus therefor - Google Patents

Abstract

PURPOSE:To prevent seedlings from being damaged by mulch films and occurrence of pollution by scattering of cut out mulch films by opening transplanting holes in a mulch film in a partially connected state laid on a field and transplanting seedlings in the transplanting holes. CONSTITUTION:Left and right tearing units (1a) and (1a) of a transplanting hole forming device are thrusted into a mulch film (A) laid on a field to perforate transplanting holes (B) in a state of the partially connected mulch film (A). Seedlings are then transplanted into the transplanting holes (B). The interval in the middle part of the tearing units (1a) and (1b) is larger than that of the lower end and the torn mulch film (A) is plastically deformed so as not to return to the original shape. Thereby, the mulch film (A) is prevented from twining around the seedlings.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a seedling transplanting method and apparatus for planting seedlings in a field covered with a mulch film.

(Prior art) Conventionally, seedlings were transplanted by making straight transplant holes in a mulch film laid in a field using a cutter with a straight blade, or by making a circular cut with a cutter with a circular blade. was.

(Problems with the prior art) However, when the conventional straight transplant holes are made, there is a problem that the mulch film heated by the sun comes into contact with the seedlings and kills the seedlings. When transplanting holes are formed in the seedlings, there are problems in that the cut-out mulch film sticks to the seedlings, or the countless cut-out mulch films scatter, causing pollution.

(Method and technical means for solving the problem) In order to solve the above-mentioned problem, the present invention makes a transplant hole B in a state where a part of the mulch film A laid in the field is connected. This is a seedling transplanting method in which the seedlings are transplanted into the transplant hole B, and the device includes a transplant hole forming device 1 that tears the mulch film A laid in the field and opens the transplant hole B, and the transplant hole B. In a seedling transplanting machine having a transplanting device 2 for transplanting seedlings into a transplanting hole B formed by a forming device 1, the transplanting hole forming bag rIll is torn into two or more bodies 1.
Consisting of a, 1a..., the outermost left and right tearing body 1
This is a seedling transplanter configured such that the width L2 at the lower end is narrower than the width L at the middle part of a.1a.

(Operations and Effects of the Invention) According to the present invention, a seedling transplanting method is provided in which a transplanting hole B is opened in a state in which a part of the mulch film A laid in field III is connected, and the seedling is transplanted into the transplanting hole B. Therefore, the mulch film A heated by the sun's rays may come into contact with the seedlings and cause them to wither, or the countless pieces of mulch film A that have been cut out may scatter and cause pollution. do not have. The transplant hole forming device 1 is constituted by two or more tearing bodies 1a, 1a..., and the width L at the lower end is wider than the width L□ at the middle part of the outermost left and right tearing bodies 1a, 1a.
2 is configured to be narrow, when entering the mulch film A, the mulch film A is accurately torn between the outermost left and right tearing bodies 1a and 18, and the torn mulch film A is plastically deformed. Since the mulch film A does not return to its original state, it can accurately prevent the mulch film A from getting entangled with the seedlings, resulting in good growth of the seedlings and solving the problems of the prior art.

(Example) A vegetable seedling transplanter which is an example of the present invention will be described in detail based on the drawings.

Reference numeral 4 designates a transmission case, in which wheel transmission cases 5,5 facing downward are rotatably provided on both left and right sides, and left and right drive wheels 6,6 are mounted on the tips of the transmission cases 5,5.

In addition, left and right drive 11F, transport 6.6, axle transmission case 5.
5 with a common balance device 5' in a rice transplanter, even if there are irregularities in the field (Multi Film A
In the ridges where the mulch film A is laid, a mound of soil is placed on the mulch film A between the ridges to prevent the mulch film A from peeling off. )
They are configured to move up and down in reverse in conjunction with each other so that the front part of the fuselage becomes approximately horizontal.

7 is an engine, which is directly connected to the front end of the transmission case 4.

Reference numeral 8 denotes a battery, which is fixed in position a on a support stand 9 extending from the engine 7 on the left side of the engine 7.

Reference numeral 10 denotes a planting section transmission case, which is fixedly connected to the rear part of the transmission case 4 via a transmission case 11.

Reference numeral 12 denotes a sub-planting transmission case, which is fixedly connected to the rear part of the planting section transmission case 10 so as to be inclined obliquely upward to the rear of the machine body.

Reference numeral 13 denotes a handle formed in a loop shape, and both ends of the handle are fixed to the upper end of the sub-planting transmission case 12.

3 is a J & FA stand, and a seedling transfer belt 2d is provided which is stretched around the bottom plate space of the framework made up of the left and right standing frames 3a and 3a and the front and rear bottom plates 2b and 2c in the front and back direction. It has a structure. 2e is a belt winding drive roll, 2
f is a belt-wound driven roll.

The belt winding drive roll 2e is appropriately driven by the planting section transmission case 10 via an intermittent drive mechanism so as to rotate by a certain amount when the seedling platform 3 reaches both left and right ends.

Therefore, the seedling transfer belt 2d rotates by a certain amount (only tST III of one plant) when the seedling platform 3 moves to the left and right ends, and transfers the seedlings C placed on the 1-save loading platform 3 in the following manner. It is configured to be transferred toward the seedling receiving frame 14.

Reference numeral 14 denotes a seedling receiving frame, which is located on the rear end side of the seedling platform 3 and is attached to the sub-planting transmission case 12, and has a seedling outlet in the left and right center portions.

15... is a seedling receptacle consisting of a rod, and the seedling receptacle frame 14
The seedling receiving rods 15 are fixed at equal intervals to a mounting plate 16 horizontally suspended between the right and left standing frames 3a and 3a of the Mff 8 units 3 in the upper part, and the lower end is open in a comb-like shape. Each of . is provided so as to support the rear side of the pot container for each vegetable seedling C. In addition, a seedling planting fixed claw 22 and a seedling planting movable claw 23 will be described later.
The seedling holding rod 15 is inserted into the seedling mounting stand 3 to hold one seedling C (a pot container of a negative seedling) in a divided manner.

Reference numeral 17 indicates a front support roller of the seedling platform 3, and the seedling platform 3 is moved from the planting section transmission case 10 with the rail 18 fixed to the lower front surface thereof riding on the front support roller 17. It is driven by a left-right drive mechanism to reciprocate left and right. The rear side of the seedling platform 3 is supported by a guide rail 19 that is square in side view and is integrally formed with the seedling receiving frame 14 via a sliding body 20 fixed to the rear lower surface of the seedling platform 3. ing.

Reference numeral 2 denotes a transplanting device, which has a hollow box-shaped transplanting device main body 21, and a seedling planting fixed claw 22 having a seedling clamping part 2a at the tip and a seedling transplanting movable claw 23 having a seedling clamping part 2b at the tip. Two iron plate seedling planting claws and a seedling pushing tool 24 are attached, and an operating mechanism for the movable seedling planting claws 23 is provided inside the seedling planting tool main body 21, so that the seedling C can be clamped or held in a hole. An operation such as releasing the seedling C is performed. And seedling pusher 24
is configured so that from the moment the lv1 planting claws 22 and 23 release the seedling C held between them, the seedling planting claws 22 and 23 move downward at the same speed as the upward movement of the seedling planting claws 22 and 23. Claws 22 and 23
Even if the seedling planting claws 22 and 23 move upward from the position where they are planted in the field, they do not move.

Then, the main body 21 of this transplant device 2 is attached to the first rotating case 2.
5, and the first rotating case 25 is connected to the second rotating case 2.
6, the first rotating case 25 and the second rotating case 26 are mounted so that the trajectory P drawn by the tips of the seedling planting claws 22 and 23 of the transplanting device 2 becomes a closed loop shape that is narrow in the front-rear direction and long in the vertical direction. A transmission mechanism is built in, and the base of the second rotating case 26 is pivotally connected to the sub-planting transmission case 12.

Reference numeral 1 denotes a transplant hole forming device which is attached to the planting unit transmission case 10 by an upper swing link 27 and a lower swing link 28 so as to be able to swing vertically, and a transplant hole forming needle 30 made of steel is connected to a transplant hole forming needle 30 made of iron plate. It is fixed to the lower part of the U-shaped frame 29 with bolts 49. The left and right needles 1a, 1a, which are the transplant hole forming parts of the transplant hole forming needle 30, have their upper portions formed in parallel to the left and right,
The tip portions are formed so as to gradually approach each other.

Reference numeral 31 denotes a tension spring, which is provided between the planting section transmission case 10 and the upper swing link 27, and urges the transplant hole forming device 1 to be pulled upward. 31
' is a stopper, which is provided to abut the upper swing link 27 and determine the uppermost position at which the upper swing link 27 is pulled up by the tension spring 31.

32 is a rotating cam fixed to a rotating shaft 33 that protrudes from the planting part transmission case 10 and is driven and rotated, and is engaged with a pin 34 provided on the two-part swinging link 27 to swing the upper part. The link 27 is moved downward under the biasing force of the tension spring 31, and the tip of the transplant hole forming needle 30 of the transplant hole forming device 1 plunges into the soil at the seedling transplanting position on a trajectory P' (Figure 2 shows the machine body). The machine is designed to swing up and down while drawing a trajectory (the trajectory is shown when the machine is stopped, and Figure 3 shows the trajectory when the machine is moving forward to perform seedling transplantation work).

Reference numerals 35 and 35 denote left and right rear axles provided behind the left and right drive axles 6, 6 at the rear of the machine body, and both left and right ends of a support shaft 36 rotatably supported on the planting section transmission case 10. The ends of the arms 37, 37 fixed to the
It is arranged to be at approximately the same position as the implantation position P4 of the trajectory P drawn by the tips of Nos. 2 and 23 when viewed from the side. The base of a rotating arm 38 is fixed to the support shaft 36, and the upper end of the rotating arm 38 is pivotally connected to the front end of a ram 42 that moves in and out of a cylinder 41 in the direction of the exit direction by the drive of a motor 40 of an electric cylinder 39. ing. However, the electric cylinder 39 rotates the rotating arm 38, the support shaft 36, the arm 37, and the
The left and right rear wheels 35 can be moved up and down at the same time via a wheel 37.

Reference numeral 43 denotes a sensor that is provided in contact with the upper surface of the ridge to freely rotate, and the up and down movement of this sensor 43 causes the motor 40 of the electric cylinder 39 to rotate forward and backward, thereby causing the ram 42
Move the left and right rear wheels 35 and 35 up and down at the same time in the direction of the E-port, and check the distance between the transplanting position P□ of the trajectory P drawn by the tips of the seedling planting claws 22 and 23 of the transplanting device U2 and the top surface of the ridge. The depth is controlled so that the depth is always constant, and the seedlings are planted at a constant depth.

In Figure 1, 44 is an alternator (generator), and 45 is a seedling stand 3. Implant device 2. Planting clutch levers 146, 46 configured to be able to operate and stop the transplant hole forming device 1 are connected to the left and right drive wheels 6, 6 provided in the left and right wheel transmission cases 9, respectively. The left and right side clutch levers 1-47, which operate the side clutches on and off, are centrifugal clutches that transmit the power of the engine 7 to the transmission case 4 when the rotation exceeds a certain level, and 48 controls the rotation speed of the engine 7. It is a throttle lever that is adjusted.

Next, to explain the operation of the upper side, set the seedling transplanter so that the left and right drive wheels 6, 6 and rear axles 35, 35 straddle the ridges of the field, and place the seedling transplanter vertically and horizontally on the seedling stand 3. After placing and accommodating pot-shaped vegetable seedlings C grown in paper seedling raisers in which containers are arranged in series at predetermined intervals, the engine 7 is started and the throttle lever 48 is changed from idling speed to seedling-planting speed. When the engine 7 is turned up to
The power is transmitted to each rotating part via the drive shaft 7, and the aircraft is propelled by the rotation of the drive shafts 6 and 6.

At this time, when the planting clutch lever 45 is operated to shift to the clutch position, the seedling platform 3 is reciprocated in the left-right direction by the power of the engine 7 via the left-right drive mechanism, so that it is located at the rear end side. The seedlings C are moved left and right while being received by the bacteria receiving frame 14, and the seedlings C are fed out to the seedling take-out port and are successively grabbed by the seedling planting claws 22 and 23 that draw the seedling planting trajectory P.

on the other hand.

The rotating cam 32 fixed to the rotating shaft 33 is the transplant hole forming device i! The tip of the transplant hole forming needle 30 of the transplant hole forming device 1 is engaged with the pin 34 provided on the upper swing link 27 of the transplant hole forming device 1 to move the upper swing link 27 downward against the biasing force of the tension spring 31. It swings up and down, drawing a trajectory P' that plunges into the soil at the seedling transplanting position. At this time, since the aircraft is moving forward, the transplant hole forming needle 30 stuck into the multi-film A tears the multi-film A to form the transplant hole B.

Seedling planting nails 22 and 23 holding the seedling in this transplanting hole B
rushes in, the seedling holding parts 2a, 2b of the seedling planting claws 22, 23 separate and release the seedlings, and the seedling pusher 24 holds the seedling holding parts 2a, 2.
From the moment the seedling C in b is opened, the seedling planting claws 22 and 23 move downward at the same speed as the upward movement to place the seedling C there, and the seedling is transplanted into the transplanting hole B.

At this time, the transplant hole forming needle 30 tears the mulch film A to form the transplant hole B, so the torn mulch film A plastically deforms and does not return to its original state. Since the film is stretched and torn, the length 12 of the torn film is shorter than the length 1□ of the hole B made. Furthermore, if the left and right needles 1a, 1a, which are the transplant hole forming parts of the transplant hole forming needle 30,
If the left and right needles are parallel to each other up to their tips, the multifilm X between the needles 1a and 18 is torn by both needles 1a and 1a when the left and right needles 18 and 1a enter the multifilm A, as shown in Figure 7. However, when the tips of both needles 1a, 1a are formed so as to gradually approach each other as in this embodiment, the needles 1a, 1a remain for a long time as shown in FIG.
The mulch film in between does not remain for a long time, so the torn film does not get entangled with the seedlings, so the seedlings grow well without adversely affecting the seedlings.

Further, by detecting the position of the top surface of the ridge by vertical movement of the sensor 43 which is in contact with the top surface of the ridge and freely rotates, the motor 40 of the electric cylinder 39 is rotated in the forward or reverse direction, and the ram 42 is moved in and out of the E-port direction. The left and right rear axles 35, 35 are simultaneously moved up and down so that the distance M13 between the transplanting position P1 of the trajectory P drawn by the tips of the seedling planting claws 22, 23 of the transplanting device 2 and the ridge D-L plane is always constant. Since the depth is controlled, the planting depth of the seedlings C is constant, and a good seedling planting operation is performed.

In addition, the progress of the aircraft is stopped and the seedling loading table 3. Transplantation 2. When you want to check the operating state of the transplant hole forming device 1, with the left and right side clutch levers 46 disengaged, turn the engine 4 with the throttle lever 48.
By increasing the rotation speed by -L, connecting the centrifugal clutch 47, and operating the planting clutch lever 45 by the clutch operator.

Seedling stand 3. Implant device 2. Only the transplant hole forming device 1 can be operated.

FIG. 8 shows a second embodiment, in which a U-shaped heat wire (heater) 50 in plan view and a hot air outlet 51 are attached to the lower part of the U-shaped frame 29 in place of the transplant hole forming needle 30, and the heat wire 5
By passing electricity through the hot wire 50, the multi-film A is melted and cut, and at the same time the hot air outlet 51
The mulch film in the cut portion is shrunk by blowing out hot air to form a transplant hole B, and the transplant device 2
The system is designed to transplant seedlings. When the mulch film A is cut using heat in this manner, the cut portion is cut smoothly and reliably.

[Brief explanation of the drawing]

The figures show a vegetable seedling transplanter which is an embodiment of the present invention. Fig. 1 is a side view, Fig. 2 is a side view of the main part, Fig. 3 is an enlarged view of the main part, and Fig. 4 is a side view of the main part. FIG. 5 is a functional perspective view, FIG. 6 is an enlarged view of the transplant hole forming needle a showing a conventional example, FIG. 7 is a functional plan view of the conventional example shown in FIG. 6, and FIG. 8 is a functional perspective view. FIG. 7 is an action diagram showing a second embodiment. Symbols in the figure: 1 is a transplant hole forming device, la and 1a are tearing bodies (left and right needles), 2 is a transplant device, 2a and 2b are seedling clamping parts, 3
is a seedling stand, A is a mulch film, B is a transplant hole, C is a seedling,
D indicates a ridge, P indicates a seedling planting trajectory, and P' indicates a trajectory of the tip of the transplant hole forming needle 30.

Claims (2)

[Claims] (1) A seedling transplanting method in which a transplant hole B is opened in a state where a part of the mulch film A is connected to the mulch film A laid in the field, and the seedling is transplanted into the transplant hole B. (2) It has a transplant hole forming device 1 that tears the mulch film A laid on the field and opens a transplant hole B, and a transplant device 2 that transplants a seedling into the transplant hole B formed by the transplant hole forming device 1. In the seedling transplanter, the transplant hole forming device 1 is composed of two or more tearing bodies 1a, 1a..., and the width L_2 of the lower end is wider than the width L_1 of the middle part of the outermost left and right tearing bodies 1a. A seedling transplanter characterized by being configured to become narrower.