JPH0767332B2 - Seedling transplanter - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a seedling transplanter that has a transplant hole forming device and a transplant device for planting seedlings in a field where a multi-film is laid.

[Prior art]

In a conventional seedling transplanter, a multi-film laid in the field is used to open a straight transplant hole with a cutter having a straight blade, or a circular cutter is used to cut a circle to open a transplant hole.

[Problems of conventional technology]

However, when the above-mentioned conventional linear transplant hole is opened, there is a problem that the multi-film heated by the sunlight of the sun comes into contact with the seedling and kills the seedling. There is a problem that the cut multi-film attached to the seedling remains uncut and the seedlings die without being cut out, and the seedlings die and the countless cut-out multi-films scatter. There was a problem that caused pollution.

[Technical means for solving the problem]

In order to solve the above problems, the present invention is directed to a multi-film B in which a transplant hole forming body 30 that operates up and down is laid in a field.
A transplant hole forming device 1 for forming a transplant hole D in the field at the same time when the multi-film B is torn into the field from above and the transplant hole D is formed in the field, and seedlings are placed in the transplant hole D formed by the transplant hole forming device 1. A transplantation device 2 for transplanting a transplantation hole forming device 1
The seedling transplanter is characterized in that it is provided on the rear side in the traveling direction of the body.

[Operation and effect of the invention]

The present invention is directed to a transplant hole forming apparatus 1 for forming a transplant hole D in the field at the same time when the transplant hole forming body 30 that operates up and down is thrust into the field from above the multifilm B laid in the field to tear the multifilm B. And the transplanting device 2 for transplanting seedlings into the transplanting hole D formed by the transplanting hole forming device 1 is used as a seedling transplanting device provided on the rear side of the transplanting hole forming device 1 in the machine body traveling direction. Forming device 1
The multi-film torn at 30 does not plastically deform and returns to its original state, and therefore does not get entangled with the seedlings, so that the growth of the seedlings is good without adversely affecting the seedlings and the problems of the above-mentioned conventional techniques are solved. Is something that can be done.

〔Example〕

A vegetable seedling transplanter according to an embodiment of the present invention will be described in detail with reference to the drawings.

Reference numeral 4 denotes a mission case, which is provided on both left and right sides of the wheel transmission case 5 so as to turn downward.
・ Left and right drive wheels 6, 6 are mounted on the tip of 5. still,
The left and right drive wheels 6 and 6 are linked to the wheel transmission cases 5 and 5 by a general balance device 5 ′ in the rice transplanter, so that even if the field has irregularities (in the ridge with the multi-film B, The earth is placed on the multi-film B between the ridges so that the film B does not come off.) It is configured so that the front and rear parts of the machine body are substantially horizontal by interlocking with each other and moving up and down.

An engine 7 is directly connected to the front end of the mission case 4.

Reference numeral 8 denotes a battery, which is placed and fixed on a support base 9 extending from the engine 7 on the left side of the engine 7.

A planting part transmission case 10 is fixedly connected to the rear part of the mission case 4 via a transmission case 11.

Reference numeral 12 denotes a sub-plantation transmission case, which is fixedly connected to the rear portion of the planting section transmission case 10 with an inclination toward the rear upper side of the machine body.

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

3 is a seedling mounting table, which is a standing frame 3a, 3a on the left and right and bottom plates 2b, 2c on the front and rear.
The seedling transfer belt 2d is wound around the space of the bottom plate of the frame made of and and is stretched around the bottom plate. 2e is a belt winding drive roll, and 2f is a belt winding 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 a certain amount when the seedling placing table 3 reaches the left and right ends. However, the seedling transfer belt 2d rotates a fixed amount (only one seedling width) when the seedling placing table 3 moves to the left and right ends, and the seedling A placed on the seedling placing table 3 is moved to the following seedlings. It is configured to be transferred to the receiving frame 14.

Reference numeral 14 denotes a seedling receiving frame, which is located on the rear end side of the seedling mounting table 3 and is attached to the sub-transplantation transmission case 12, and a seedling take-out port is provided in the center portion on the left and right.

Denoted at 15 is a seedling receiving rod made of a rod, and is a mounting plate 16 which is horizontally installed between the left and right standing frames 3a and 3a of the seedling mounting table 3 above the seedling receiving rod 14.
Are fixed at the same intervals and have comb-shaped lower ends opened, and each of the seedling receiving rods 15 is provided so as to support the rear side of the pot container for each plant of the vegetable seedlings A. In addition, the seedling planting fixed claw 22 and the seedling planting movable claw 23, which will be described later, plunge into the seedling mounting table 3 with the seedling receiving rod 15 sandwiched therebetween, and divide one seedling A (one pot pot container). Operates to hold.

Reference numeral 17 denotes a front support roller of the seedling mounting table 3, and the rail 18 fixed to the front lower surface of the seedling mounting table 3 has a front supporting roller 17
In the state of riding on the vehicle, it is laterally reciprocated by being driven by the lateral drive mechanism of the planting section transmission case 10. The rear side of the seedling mounting table 3 is supported by a slide rail 20 fixed to the rear lower surface of the seedling mounting table 3 by a guide rail 19 formed in a side view and having a rectangular shape in a side view. ing.

2 is an implanting device, which is a box-shaped implanter body with a hollow inside.
In 21, the two seedling planting nails and the seedling pushing tool 24 made of two iron plates, that is, a seedling planting fixed nail 22 having a seedling holding portion 2a at the tip and a seedling planting movable nail 23 having a seedling holding portion 2b at the tip, are attached, An operation mechanism for the movable seedling planting claws 23 is provided inside the seedling planting tool main body 21 so that the seedling A can be held and the holding seedling A can be opened. And, the seedling pushing tool 24 is configured to move downward at the same speed as the raising speed of the seedlings 22 and 23 from the moment when the seedlings 22 and 23 release the held seedling A. , The seedling A is not moved even if the seedlings 22 and 23 move upward from the position where the seedlings 22 and 23 are planted in the field.

Then, the main body 21 of the transplanting device 2 is pivotally attached to the first rotating case 25, the first rotating case 25 is pivotally attached to the second rotating case 26, and the tips of the seedling planting claws 22 and 23 of the transplanting device 2 are attached. The transmission mechanism is built in the first rotating case 25 and the second rotating case 26 so that the locus P drawn by is a closed loop shape that is narrow in the front-rear direction and long in the up-down direction. Case 12
Is pivoted on.

Reference numeral 1 denotes a transplant hole forming device in which a planting part transmission case 10 is vertically swingably mounted by an upper swing link 27 and a lower swing link 28, and is a needle body 30a ... U made of three steel materials. The transplant hole forming body 30 formed of the character-shaped mounting portion 30b is fixed to the lower portion of the U-shaped frame body 29 made of an iron plate by a bolt 49.

Reference numeral 31 is a tension spring, which is provided between the planting portion transmission case 10 and the upper swing link 27, and biases the transplant hole forming device 1 to be pulled upward. Reference numeral 31 'denotes a stopper, which is provided so as to contact the upper swing link 27 and determine the upper limit position where the upper swing link 27 is pulled up by the tension spring 31.

Reference numeral 32 denotes a rotary cam fixed to a rotary shaft 33 that is driven to rotate so as to project from the planting portion transmission case 10, and engages with a pin 34 provided on the upper swing link 27 to cause the upper swing link 27 to move.
Is moved downwards against the urging force of the tension spring 31, and the locus P ′ of the tip of the implant hole forming body 30 of the implant hole forming apparatus 1 plunging into the soil at the implanting position (FIG. 2 stops the machine body). Fig. 3 shows the locus when the seedlings are transplanted by advancing the machine body) and is provided to swing up and down.

Reference numerals 35, 35 are left and right rear wheels provided at the rear of the body behind the front, rear, left and right drive wheels 6, 6, and both left and right ends of a support shaft 36 pivotally supported by the planting section transmission case 10. Each of the arms 37, 37 fixed to the is rotatably supported by the tip of each arm 37, and the grounding point is substantially the same as the transplantation position P _{1 of the} locus P drawn by the tips of the seedlings 22, 23 of the transplanter 2. They are arranged so that they are in the same position when viewed from both sides. Further, the support shaft 36 has a rotating arm 38.
The base of the rotary arm 38 is fixed, and the upper end of the rotating arm 38 is driven by the motor 40 of the electric cylinder 39 to move the cylinder 41 in the direction of the arrow.
It is pivotally attached to the front end of a ram 42 that moves in and out of. However, with the electric cylinder 39, the rotating arm 38, the support shaft 36,
The left and right rear wheels 35, 35 can be simultaneously moved up and down via the arms 37, 37.

Reference numeral 43 denotes a sensor which is provided so as to come into contact with the upper surface of the ridge C and rotate freely. The vertical movement of the sensor 43 causes the motor 40 of the electric cylinder 39 to rotate normally and reversely to rotate the ram 42. And the rear left and right wheels 35, 35 are moved up and down at the same time, so that the distance L between the transplantation position P _{1 of the} locus P drawn by the tips of the seedlings 22. The planting depth of seedlings is controlled to be constant so that the planting depth is constant.

In the figure, reference numeral 44 is an alternator (generator), and 45 is a rocking operation in the front-rear direction.
A planted clutch lever configured to activate and deactivate the left and right side wheels of the left and right drive wheels 6 and 6 provided on the left and right wheel transmission cases 9 and 9, respectively. The left and right side clutch levers, 47 are centrifugal clutches which are provided to transmit the power of the engine 7 to the transmission case 4 when the rotation of the engine 7 reaches a certain level, and 48 is a throttle lever which adjusts the rotation speed of the engine 7.

Next, explaining the operation of the above example, the machine is set so that the left and right drive wheels 6.6 and the rear wheels 35, 35 of the seedling transplanter straddle the ridge C in the field, and the seedling mounting table 3 is set vertically and horizontally. After the pot-shaped vegetable seedlings A grown in a paper-made seedling device in which pot containers are continuously arranged at predetermined intervals are placed and housed, the engine 7 is started and the throttle lever 48 is started from the idling speed to the seedling planting work speed. When it is raised to 1, the power of the engine 7 is transmitted to each rotating portion via the centrifugal clutch 47, and the vehicle body is propelled by the rotation of the drive wheels 6.

At this time, when the planting clutch lever 45 is operated to the clutch on position, the seedling table 3 is reciprocally rocked in the left and right directions by the power of the engine 7 through the left and right drive mechanism. A is moved to the left and right while being received by the seedling receiving frame 14, the seedling A is fed to the seedling take-out port, and the seedling planting locus P
Gradually picked up by the seedlings 22.23. On the other hand, the rotary cam 32 fixed to the rotary shaft 33 engages with the pin 34 provided on the upper swing link 27 of the implant hole forming device 1 to prevent the upper swing link 27 from resisting the biasing force of the tension spring 31. Then, the tip of the transplant hole forming body 30 of the transplant hole forming apparatus 1 is swung up and down while drawing a locus P ′ of plunging into the soil at the seedling transplanting position. At this time, since the machine body is moving forward, the transplant hole forming body 30 pierced in the multi-film B tears the multi-film B to form the transplant hole D. And this transplant hole D
The seedlings 22.23 rush into the plant by holding the seedlings into the
From the moment when the seedling holding parts 2a and 2b of the seedlings are separated and the seedlings are released and the seedling pushing tool 24 opens the seedlings A of the seedling holding parts 2a and 2b, the seedling planting nails 22 and 23
The seedling A is placed in the transplant hole D by moving downward at the same speed as that of moving the seedling A.

At this time, since the transplant hole forming body 30 forms the transplant hole D by tearing the multifilm B, the torn multifilm B does not plastically deform and returns to its original state, in other words, the periphery of the transplant hole D. it is shortened in the film torn than the length 1 ₁ of the hole D drilled since tearing notwithstanding et stretching the film length 1 _2. Therefore, since the torn film does not get entangled with the seedlings, the seedlings grow well without adversely affecting the seedlings.

In addition, the electric cylinder 39 is detected by detecting the upper surface position of the ridge C by the vertical movement of the sensor 43 that comes into contact with the upper surface of the ridge C and rotates.
The motor C0 is rotated normally or reversely, the ram 42 is moved in and out in the direction of the arrow, the left and right rear wheels 35, 35 are simultaneously moved up and down, and the locus P drawn by the tips of the seedlings 22, 23 of the transplanter 2 is drawn. Transplant position
Since P ₁ and the distance 1 ₃ between the ridges C top is always controlled to be constant, planting depth of the seedling A is constant, it is performed good seedling planting.

When the operator wants to check the operating states of the seedling stand 3, the transplanting device 2, and the transplant hole forming device 1 by stopping the progress of the machine, the left and right side clutch levers 46, 46 are operated with the side clutch disengaged, and the throttle lever 48. By increasing the rotation speed of the engine 4 and connecting the clutch of the centrifugal clutch 47 to operate the clutch lever 45 with the clutch, the seedling table is
Only 3, the implanting device 2 and the implant hole forming device 1 can be operated.

[Brief description of drawings]

FIG. 1 shows a vegetable seedling transplanting machine according to an embodiment of the present invention. FIG. 1 is a side view, FIG. 2 is a side view of essential parts, FIG. 3 is an action plan view, and FIG. It is a perspective view. In the figure, reference numeral 1 is a transplant hole forming device, 2 is a transplant device, and 2a and 2b.
Is a seedling sandwiching part, 3 is a seedling mount, A is a seedling, B is a multi-film, C is a ridge, D is a transplant hole, P is a seedling locus, and P'is a tip of the transplant hole forming body 30.

Claims (1)

[Claims] 1. A transplant hole forming device for forming a transplant hole D in the field by causing a transplant hole forming body 30 which operates up and down to project into the field from above a multi-film B laid in the field and tear the multi film B at the same time. 1, a seedling transplanting machine is provided with a transplanting device 2 for transplanting seedlings into the transplanting hole D formed by the transplanting hole forming device 1 on the rear side of the transplanting hole forming device 1 in the machine traveling direction. .