JPH1146523A - Seedling transfer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable not to interfere delivering of side slip-protecting rods when a seedling laying stand comes to a lateral end and delivers mass seedlings to the side of a seedling accepting plate, as protruded parts of the mass seedlings on the seedling accepting plate from the seedling laying stand are side slip-protected by pushing the floor bed from over with the plural side slip-protecting rods. SOLUTION: This seedling transfer device is installed with a seedling take out opening 25a, through which a separation nail takes out one stock of seedlings from the end of mass seedlings 35 by passing the nail downward, is installed on a seedling accepting plate 25, a seedling laying stand 27, which reciprocally moves to left and right by pushing the rear of the mass seedlings 35 to protrude on the seedling accepting plate 25, is arranged in front of the seedling accepting plate 25, a seedling delivering device, which delivers the mass seedlings 35 backward when they are moved to lateral end and plural side slip-protecting rods 48, which contact to the floor of the mass seedlings 35 from over and hold the rear part of the floor, are installed on the seedling laying stand 27 and the side slip-protecting rods 48 are so installed to float up from the seedling bed when the seedling delivering device delivers the mass seedlings 35.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a field planting planter for transplanting seedlings such as vegetables and flowers into a field.

[0002]

2. Description of the Related Art A seedling table that reciprocates left and right is disposed in front of a seedling receiving plate having a seedling opening, and a rear portion of the group of seedlings placed on the seedling table moves left and right on the seedling receiving plate. When you come over the seedling opening,
The seedlings for one plant are cut off and transplanted with a separating claw passing downward through the seedling opening. Then, when the seedling mounting table comes to the lateral end and the chipping of the rear end of the group seedling is completed, the seedling feeding device feeds out the group seedling later, and then the seedling mounting table moves laterally in the opposite direction. Here, when the rear end of the group seedlings moves left and right on the seedling receiving plate, the rear end of the seedlings may laterally shift to the delayed side due to friction between them, which may hinder chipping of the seedlings. In order to solve this, a plurality of lateral displacement prevention rods are provided on the seedling mounting table, and contact the seedling bed of the collective seedling from above on the seedling receiving plate, and the group seedlings move to the right and left. Lateral displacement of the rear portion is prevented, and the accuracy of chipping of the seedling by the implantation rod is improved.

[0003] A rice transplanter for transplanting rice seedlings is also provided with a seedling holding rod for pressing a mat-shaped group seedling from above. The seedling holding rod presses the group seedling against a seedling feeder. , To improve its payout function,
There is almost no function to prevent the lateral displacement of the edge of the group seedling.

[0004]

If the lateral displacement preventing rod is constantly in contact with the nursery bed, there is a risk that the feeding of the collective seedlings by the seedling feeder when the seedling mounting table reaches the lateral end may be hindered.

[0005]

In order to solve the above-mentioned problems, according to the present invention, a seedling outlet 25a for taking out one seedling of seedling from the end of a group of seedlings 35 through which a separating claw 39 passes downward is provided. A seedling table 27 which is provided on the seedling receiving plate 25 and protrudes the rear part of the placed group seedlings 35 onto the seedling receiving plate 25 and reciprocates right and left is disposed in front of the seedling receiving plate 25, and is moved sideways by the above-described movement. At the end, a plurality of lateral displacement preventing rods 48 are provided on the seedling mounting table 27 to contact the seedling bed of the collective seedling 35 from above and hold the rear part thereof, and the lateral displacement preventing rod 48
Is a seedling transfer device provided so as to float from the seedbed when the seedling feeder 30 feeds out the group seedlings 35.

[0006]

Next, an embodiment of the present invention will be described. As shown in FIGS. 1 and 2, a seedling plant 2 is mounted on a traveling vehicle body 1 to form a seedling plant. The traveling vehicle body 1 is configured as follows. A frame 4 protrudes forward from the gear box 3, and an engine 5 is mounted thereon. A horizontal bar 6 is attached to the frame 4 in front of the engine 5, and legs 7L and 7R protrude downward from the both sides of the frame, and a front wheel 8 is provided at each rear end.
L, 8R are attached. A pair of chain cases 9
The front ends of L and 9R are rotatably mounted on both sides of the gear box 3, and the rear wheels 10L and 10R are mounted on their rear ends. The front wheels 8L and 8R and the rear wheels 10L and 10R
After the motive power of the engine 5 is introduced into the gearbox 3 by the belt 11 over the ridge covered with the multi-film, the speed is adjusted to a predetermined speed by a transmission therein, and the chain case 9L, 9R
The inside of the vehicle reaches the rear wheels 10L and 10R, and the rotation of the traveling vehicle 1 advances.

[0007] The transmission frame 12 and the support frame 13 extend from the left and right sides of the gear box 3 upward and rearward, and a pair of handle frames 14 further extend upward from the respective sides. A handle 15 is fixed to upper ends of the pair of handle frames 14. The upper portions of the pair of support plates 16 are fixed to the respective handle frames 14. The upper part of the elevating cylinder 17 is attached to the support plate 16 so as to be swingable. A horizontal shaft 18 is rotatably mounted on the pair of support plates 16, and the lifting cylinder 1
The protruding end of the piston rod 17a projecting downward from 7 is connected. An arm 19L projecting upward from the front portion of the chain case 9L and an arm 20L projecting downward from the left end of the horizontal shaft 18 are connected by a rod 21L. A horizontal cylinder 22 is attached to a lower end of an arm 20R protruding downward from a right end of the horizontal shaft 18. An arm 19R projecting upward from the front of the chain case 9R and a piston rod 22a projecting forward from the horizontal cylinder 22 are connected by a rod 21R.

When oil is supplied to the lower chamber of the elevating cylinder 17, the piston rod 17a is retracted and the horizontal shaft 1
8 turns counterclockwise in FIG. 1 and the chain case 9L, 9R
Turns clockwise, the rear wheels 10L and 10R descend, and the gear box 3 rises. Supplying oil to the upper chamber will do the opposite. When oil is supplied to the front chamber or the rear chamber of the horizontal cylinder 22, the piston rod 22a protrudes and retracts, and the chain case 9R
Swings, and the inclination of the gear box 3 in the left-right direction changes. The above oil supply is performed manually and automatically, and during the transplantation of seedlings,
While the position of the gearbox 3 is kept at a certain height from the ridge,
The left and right inclination is always kept horizontal.

[0009] The seedling plant 2 is configured as follows. The ascending and descending heating metal 23 and the drilling tool 24 are arranged in front and rear below the rear part of the gear box 3. When the heating metal 23 is lowered, the multi-film is melted to make a hole. It is designed to make a transplant hole in the field within the hole. A seedling receiving plate 25 having a seedling opening 25a at the center is disposed horizontally and both ends thereof are fixed to the transmission frame 12 and the support frame 13. A support leg 26 protrudes above the engine 5, and a protruding end thereof and a seedling table 27 at a front portion of the seedling receiving plate 25.
Are slidably supported left and right. Laterally moving rods 28 that reciprocate left and right with a lead cam (not shown) project left and right from the gear box 3, and each of the protruding ends and the support rod 2 of the seedling mounting table 27.
7a are connected by a support rod 29 (FIGS. 1 and 3).

A seedling feeder 30 is arranged on the lower surface of the seedling table 27. The illustrated seedling feeding device 30 is configured by a belt conveyor in which a belt 34 is wound around a driving wheel 32 and a rolling wheel 33 driven by a motor 31. When the group seedling 35 rides on the belt 34 and the seedling mounting table 27 reaches the lateral end, the seedling is fed backward. The group seedling 35 is made as follows. A plurality of trapezoidal cavities (pots) 35a (FIGS. 4 and 5) arranged in front, rear, left and right are integrally made of pulp to form pot sheets, and floor soil is put in each pot 35a, and seeds such as cabbage and lettuce are placed. After sowing, covering and irrigating, after a predetermined number of days, each pot 35a
Seedlings grow for one plant. The soil 35b is clogged in the valley between the left and right and front and rear pots 35a, and the seedbed is constituted by the floor soil, the pot sheet, the soil 35b, and the like. Rear pot 3
5a protrudes from the seedling mounting table 27 onto the seedling receiving plate 25, and the lateral movement causes the rearmost pot 35a to pass laterally over the seedling opening 25a (FIG. 5).

A first rotating case 36 is attached to the right of the rear part of the transmission frame 12, and in FIG. 1, is rotated clockwise around a lower shaft by the power of the engine 5. A second rotating case 37 is attached to the right of the projection of the first rotating case 36 so as to rotate counterclockwise. A claw case 38 is attached to the right of the protrusion of the second rotating case so as to maintain the same posture during the rotation. The separation claw 39 is composed of a pair of plates and protrudes downward from the claw case 38. When the first rotating case 36 is turned up and down during rotation, the second rotating case 37 is turned up and down so as to extend, and when the former is turned back and forth, the latter is turned forward and backward so that the latter is folded. The tip of the claw 39 turns up and down through a long oval orbit A. Then, the tip of the separation claw 39 is in the middle of the downward descent of the seedling opening 25a.
Pass through. Also, when it comes to the seedling opening 25a, the pair of plates closes and sandwiches the pot 35a above it, the pot 35a is cut off from the group seedling 35 by the next descent, and opened at the lower end to open the pot 35a, The seedlings to be grown are transplanted into the above-mentioned transplantation hole. In addition, the separation claw 39 in the figure
Although the seedlings lacking from the group seedling 35 are directly transplanted, they can be supplied to a cup or the like and transplanted indirectly.

[0012] A compression ring 40 is disposed thereafter, and after the transplantation hole in which the seedlings have been transplanted is backfilled, the side thereof is lightly pressed and hardened. The rear portion of the seedling mounting table 27 is configured as shown in FIGS. That is, the support plates 41 protrude upward from both sides of the rear portion of the seedling mounting table 27, and their ends are connected in a gate shape by the connection plates 42. A pair of operation plates 43 are attached to the inside of the support plate 41 so as to be swingable by a shaft 41a, and are drawn by a spring 44 clockwise in FIG. Both ends of the vertical mounting plate 45 are fixed to the respective operation plates 43. A plurality of pot holders 46 protrude downward from the mounting plate 45, each lower end reaches above the rear end of the seedling receiving plate 25, and after the last row of pots 35 a of the collective seedling 35 protruding rearward from the seedling mounting table 27. The surface is prevented from falling off.

Both ends of the mounting plate 47 are vertically slidably supported on the inner surfaces of the pair of supporting plates 41 (the supporting structure is not shown), and a plurality of lateral displacement preventing rods 48 project downward therefrom. The horizontal portion 48a bent forward is located between the left and right pots 35a. And the mounting plate 47
Is lowered, the respective horizontal portions 48a come into contact with the fill 35b, and ascend, they rise from the fill 35b.

A pair of L-shaped levers 49 are arranged side by side on the upper portion of the connecting plate 42, and each intermediate portion is connected to a shaft 49a.
And is swingably attached to the support portion 42a of the connecting plate 42. The left end of the lever 49 is connected to the mounting plate 47 by a connecting rod 50, and the mounting plate 47 is pushed down by a spring 51. The right ends of the pair of levers 49 are connected by a link 52, and when pulled to the left with a wire 53 attached to the left end, the levers 49 rotate clockwise and the mounting plate 47 rises.

When the mounting plate 47 is lowered, its inner surface 4
7a (FIG. 5) comes into contact with the shoulder 43a of the right operating plate 43, the pot holder 46 keeps the above-mentioned posture, and when the mounting plate 47 is raised, the inner surface 47a separates from the shoulder 43a and the operating plate 43 is moved. It is pulled by the spring 44 and swings clockwise, so that the protrusion 43b at the upper end is separated from the switch 54, which is turned "ON" and the motor 31 is started.

The other end of the outer wire 55 having one end attached to the left support plate 41 is slidably attached to the left support rod 29 in a lateral direction (FIG. 3). A rod 56 is slidably attached to the right support rod 29, and the end of the wire 53 that has passed through the outer wire 55 is connected to the left end. A pair of fasteners 5
7A and 57B are fixed to the rod 56 on the left and right of the support rod 29. A pair of pushers 58A and 58B are fixed to the gear box 3, and a wire 53 and a rod 56 pass through respective holes. Then, when the seedling table 27 comes to the left end by the movement of the lateral movement rod 28, the stopper 57A hits the pusher 58B, the rod 56 is pushed rightward, and the wire 53 is pulled. When the seedling table 27 comes to the right end, in FIG.
Push the end of 5 to the left. At this time, the stopper 57B is
Since the wire 53 is stretched against the right surface of the wire 9, the wire 53 is pulled by the above-mentioned left pushing of the end of the outer wire 55.

That is, the collective seedlings 35 placed on the seedling mounting table 27
The rear end of the rear end is projected backward, and the rear surface of the pot 35a in the last row is supported by each of the pot holders 46 to start the seedling planting operation. At this time, the respective horizontal portions 48a are in contact with the earth 35b to prevent the pot 35a on the seedling receiving plate 25 from laterally shifting. Then, when the seedling mounting table 27 moves from the left end to the right, the pots 35a in the last row pass over the seedling opening 25a in order from the right one, and are cut off by the separation claws 39 at this time. When the seedling mounting table 27 comes to the right end, the stopper 57A is pushed by the pusher 58B, the wire 53 is pulled, the link 52 turns the lever 49 clockwise, and the connecting rod 50 raises the mounting plate 47. The horizontal portion 48a of the lateral displacement prevention rod 48 rises from the soil 35b (the seedbed of the group 35). Then, the inner surface 47a rises and separates from the shoulder 43a. Thereafter, when the leftmost pot 35a is cut off,
The pushing of the left end pot holder 46 by the left end pot 35a is released, the operation plate 43 pulled by the spring 44 turns clockwise, and the projection 43b is turned on by the switch 54.
Then, the motor 31 is activated and the belt 34 advances the collective seedlings 35 later, and the pot 35a in the row before the row missing in the above-described process becomes the last row, and the rear end is the rear end of the seedling receiving plate 25. Sent out to. When the pot 35a is extended later in this manner, the pot holder 46 is pushed and turned counterclockwise, and the projection 43b is separated from the switch 54 and turned "OFF".
Then, the motor 31 stops and the belt 34 stops. After that, when the seedling mounting table 27 starts to move to the left, the pulling of the wire 53 is released, the horizontal portion 48a descends and contacts the soil 35b, the inner surface 47a descends and hits the shoulder 43a, and the pot 43 The rotation of the holder 48 is stopped, and the pot 35a is held stationary. When the seedling mounting table 27 reaches the left end, the wire 53 is pulled, and the above operation is repeated.

In the above arrangement, the seedling table 27 is arranged in front of the seedling receiving plate 25. However, this can be reversed or left and right. The motor 31 can be configured as shown in FIGS. That is, the disk 59 is fixed to the right of the driving wheel 32 and is rotated by the motor 31. When the solenoid 60 is disposed on the right side and the switch 54 is turned “ON”, the disk 61 is pushed to the left,
The disk 31 is rotated by the motor 31 and rotates together with the disk 59. A protrusion 61a is provided on the outer periphery of the disk 61, and when the disk 61 rotates to a predetermined position, it hits the switch 62 to turn off the switch 54 and stop the rotation of the motor 31. . When the switch 54 is turned “OFF”, the solenoid 60 is moved to the disk 61.
Is pulled back to the right, and the above-described rotation of the disk 61 is pulled back by the spring 64 to the original position where the projection 61 a hits the pin 63. Note that the switch 54 may be replaced with a switch that is turned “ON” when the seedling mounting table 27 comes to the left or right end.

According to this configuration, quantitative feeding of the group seedlings 35 by the motor 31 can be realized at low cost. The wiper motor used in the automobile can be applied to the feeding device of the group seedling 35. That is, as shown in FIG. 8, the worm wheel 67 is rotated by biting the worm 66 driven by the motor 65. Sensor 6
7a is provided on the worm wheel 67, and when the switch 54 is turned "ON", the motor 65 is started. When the worm wheel 67 makes one rotation by the rotation, the switch 54 is turned "OF".
F "and the motor 65 is stopped. The arm 68a of the operating shaft 68 is connected to the worm wheel 6 by the rod 69.
When the worm wheel 67 rotates, the operating shaft 68 swings (the wiper motor ends here). A ratchet wheel 70 is provided on a shaft 32a of the driving wheel 32, and its arm 70a and an operating shaft 68
Arm 68b is connected by a rod 71, and the swing of the operating shaft 68 intermittently rotates the driving wheel 32 clockwise,
The belt 34 turns in the same direction.

According to this configuration, the seedling feeder can be configured at low cost with a stable and proven wiper motor. According to FIG. 9, the feed amount can be freely adjusted. That is, the piece 72 having the pin 72a is attached to the arm 68b so as to move in the radial direction with the screw 73, and one end of the rod 71 is attached to the pin 72a. Therefore, when the screw 73 is turned left and right, the position of the pin 72a changes and the arm 70a
Is changed, and the feeding amount of the collective seedling 35 by the belt 34 is adjusted.

The seedling transplanter can be configured as a riding type as shown in FIG. That is, the same two seedling planting apparatuses 2 as described above are mounted side by side after the riding-type traveling vehicle body 74 to form two-row planting. The traveling body 74
Is configured as follows. Left and right rear wheels 75L, 7
5R straddles two ridges (or wide ridges). The rear hitch 76 is provided so as to move up and down by the first cylinder 77. The upper part of the vertical transmission case 78 is attached to the rear part of the hitch 76 so as to swing around a longitudinal axis, and the middle of a horizontally long mounting frame 79 is attached to the lower part of the transmission case 78, the longitudinal axis. It is mounted to swing around. A pair of seedling planting apparatuses 2 are mounted on the mounting frame 79 side by side, and each separation claw 39 is configured to transplant a seedling to each ridge.

A second cylinder 80 is provided between the hitch 76 and the transmission case 78, and by operation of the second cylinder 80, the transmission case 78 swings with respect to the hitch 76 so that the lower end moves left and right, and the transmission case 78 and the mounting frame A third cylinder 81 is provided between the transmission case 78 and the mounting frame 79.
Is made to rock. Left and right height sensors 82
L and 82R are mounting frames 79 (or each seedling planting device 2)
On the upper surface of each ridge,
It swings around the front axis in accordance with the distance between the ridge and the ridge.

A pair of extensible rods 83 protrude out of each seedling plant 2, and a switch box 84 is provided at each end. Lateral sensors 85L and 85R that advance along the outer slopes of the left and right ridges project rearward from the respective switch boxes 84. Horizontal sensor 85
L and 85R are attached such that a thin belt-shaped spring material is twisted 90 degrees in the middle and the rear portion becomes horizontal, and the front end of the vertical front portion swings around a vertical axis 86.
, And is separated from the switch 88. A wing plate 89 sliding on the slope of the ridge is fixed to the front part of the horizontal part,
The rear end is bent upward. When the mounting frame 79 moves too far to the right, the horizontal sensor 85L is pushed around on the slope of the left ridge, hits the switch 88 and turns “ON”, and when it moves too far to the left, the horizontal sensor 85R moves to the right ridge. It is pushed on a slope and hits a switch 88 to be turned "ON".

The control unit 90 receives signals from the height sensors 82L and 82R and the lateral sensors 85L and 85R (switches 88L and 88R) to control the first cylinder 77 and the second cylinder 80.
And the third cylinder 81 is operated as follows. When the inclination of the height sensors 82L and 82R is large (when the rear end is too low), the first cylinder 77 lowers the hitch 76,
When it becomes small, the hitch 76 is raised. That is, the seedling plant 2
The spacing between the ridges and the upper surface of the ridge is kept constant, so that the planting depth of the seedlings is uniform.

If there is a difference between the inclinations of the left and right height sensors 82L and 82R, the third cylinder 81 swings the mounting frame 79,
Eliminate the difference. That is, the distance between each seedling plant 2 and the upper surface of the ridge is kept constant, and the right and left seedling plant 2
Seedling planting depth is constant. When the lateral sensor 85L turns on the switch 88, the second cylinder 80 pushes and turns the transmission case 78, and the lateral sensor 85R turns on the switch 88.
When "ON" is set, push in the counterclockwise direction to turn the seedling plant 2
The center of the ridge with the center of the ridge. If the swing causes a difference in height between the left and right seedling plant 2, as described above, the third
The cylinder 81 swings the mounting frame 79 to remove the difference.

That is, the first cylinder 77, the second cylinder 80, and the third cylinder 81 operate in combination, and each seedling plant 2 is placed at a certain depth at the center (determined position) of each ridge. Transplant the seedlings. And the lateral sensor 8
5L and 85R bend right and left at the front part, and warp up and down at the rear part to prevent deformation, and eliminate the problem of falling into the field when the seedling plant 2 is lowered.

[0027]

As described above, according to the present invention, the seedling table 27
Is moving laterally, the projecting portion of the group seedling 35 projecting from the seedling mounting table 27 is held by the plurality of lateral displacement preventing rods 48 that are in contact with the seedling bed from above, and the seedling receiving plate 25 Even when moving in contact, the risk of lateral displacement is removed, and when the seedling mounting table 27 comes to the lateral end and the group seedlings 35 are fed out, the lateral displacement prevention rod is floating from the nursery bed.
The above dispensing is performed smoothly.

[Brief description of the drawings]

FIG. 1 is a side view of a walking-type seedling plant to which the present invention has been applied.

FIG. 2 is a plan view of a part thereof.

FIG. 3 is an enlarged rear view of a part thereof.

FIG. 4 is an enlarged rear view of a part thereof.

FIG. 5 is a partially cutaway side view thereof.

FIG. 6 is a rear view of another seedling feeding device.

FIG. 7 is a partial slope view thereof.

FIG. 8 is a side view of another seedling feeding device.

FIG. 9 is an enlarged side view of a part thereof.

FIG. 10 is a side view of a part of a riding type seedling transplanter according to the present invention.

FIG. 11 is a plan view of a part thereof.

FIG. 12 is a rear view of a part thereof.

FIG. 13 is an enlarged plan view of a part thereof.

FIG. 14 is a side view thereof.

FIG. 15 is a block circuit diagram thereof.

[Explanation of symbols]

 25 Seedling receiving plate 25a Seedling opening 27 Seedling table 30 Seedling feeder 35 Collective seedling 39 Separating claw 48 Side-shift prevention rod

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshikatsu Aoki 1 Eighth Tokura-cho, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Inside

Claims (1)

[Claims] 1. A seedling opening 25a through which a separation claw 39 passes downward to take out one plant seedling from the end of the group seedling 35 is provided on the seedling receiving plate 25. Seedling receiving plate 2
A seedling mounting table 27 is provided in front of the seedling receiving plate 25 so as to protrude upward and reciprocate left and right. A plurality of lateral displacement prevention rods 48 that contact the nursery bed from above and hold the rear portion thereof are provided on the seedling mounting table 27, and the lateral displacement prevention rods 48 are provided so as to rise from the nursery bed when the seedling feeder 30 feeds out the collective seedlings 35. Seedling transfer equipment.