JP3203696B2 - Seedling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a seedling planting machine, achieving homogenization of the bonding between the seedlings to be spliced prior to seedling taking out seedlings on the supplied seedling placing stand to apparatus and their seedlings Therefore, it is intended to stabilize transplantation of seedlings.

[0002]

2. Description of the Related Art The number of seedlings transplanted in a seedling transplanter decreases when they are removed from a seedling mounting table by a seedling removal device.
If the seedlings disappear, the seedlings cannot be transplanted. Therefore, while a certain amount of seedlings remain on the seedling mounting table, new seedlings are added to the seedlings and used. Some of the seedlings to be added are sent by seedling supply means such as a belt conveyor. The seedling supply means stops the supply operation based on the feed amount.

[0003]

Since the seedling supply means stops the supply operation on the basis of the feed amount, the seedling supply means is connected to the end of the seedling on the seedling table previously supplied to the seedling removal device side. The ends of the seedlings that are opened or pressed too much and increase in a mountain-like manner do not achieve uniform joining of the seedlings, resulting in lack of seeds and disturbance in the planting posture of the seedlings. There was a risk that seedling transplantation would not be performed properly.

[0004]

According to the present invention, another seedling to be added to the seedling on the seedling mounting table 5 previously supplied to the seedling removing device 6 is operated by the seedling supply means 18 of the seedling supply device. In the seedling transplanter provided to be sent to the take-out device 6 side,
In the seedling replenishing device, the end of the another seedling to be added comes into contact with the end of the seedling first supplied to the side of the seedling extracting device 6 and the contact pressure is reduced.
Detecting means for detecting that a predetermined value has been reached, and the detecting means
Stopping means for stopping the seedling supply operation upon detection of
And a seedling transplanter characterized by being configured as described above .

[0005]

According to the seedling transplanter of the present invention, the seedlings on the seedling mounting table 5 are taken out by the seedling take-out device 6 and reduced, and the seedlings taken out by the seedling take-out device 6 are transplanted to the field. Seedling plant of the present invention
It is necessary, a different seedling to be spliced in the seedling plants replenishing
The seedlings are supplied to the seedling removal device 6 by the seedling supply means 18 of the device. Here, the contact pressure in contact with an end of the further seedlings end seedlings previously supplied to the seedling taking out apparatus 6 side to be spliced is Tokoro
Stops when it reaches the specified value
The supply operation of the another seedling is stopped by the means .

[0006]

As described above, according to the present invention, it is determined that the end of the seedling previously supplied to the seedling removing device 6 comes into contact with the end of another seedling to be added and the contact pressure reaches a predetermined value. Detection means
When the detection is made, the supply operation of the another seedling of the seedling supply means 18 of the seedling supply device is stopped by the stop means , so that the seedling previously supplied to the seedling removal device side and the seedling to be added thereto are located.
Bonding can be performed at a constant pressure, and there is no danger that the space between the two will be opened or pressed too much to increase in a mountain-like manner as in the prior art, and seedlings can be transplanted properly.

[0007]

Next, an embodiment of the present invention will be described. FIG.
As described above, a seedling plant 3 is attached to a pair of upper and lower links 2 behind the traveling vehicle body 1 to constitute a riding type seedling planter. The seedling plant 3 includes a gear box 4 at the center, a seedling table 5 provided on the front of the gear box 4, which moves to the left and right, and an oval from the top to the bottom at the lower end of the seedling table 5. It is made up of a seedling rod 6 whose tip turns in a track and a float 7 provided below the gear box 4 and sliding on a mud surface.

[0008] Three planting cases 8 extend from the gear box 4 under the seedling mounting table 5 (Fig. 2), and four sets of seedlings are provided on the inside of both sides and on the rear ends of both sides of the center. The planting rod 6 is provided to form a four-row planting planting device 3. Planting case 8,
The rail 9 is fixed so as to pass over the rails 8 and 8.
Thus, the abdomen at the lower end of the seedling mounting table 5 is supported so as to move right and left. Further, a support post 10 extends upward from the gear box 4, and a middle portion of the seedling mounting table 5 is supported by a slider 11 attached to an upper end thereof. Seedling receiving plate 1 wider than seedling table 5
2 is fixed to the rail 9 so as to cover the lower end of the seedling mounting table 5. The seedling receiving plate 12 is provided with four outlets through which the tips of the seedling rods 6 pass, and the mat seedlings on the seedling mounting table 5 are cut off by the respective seedling rods 6 on the outlets. After being lowered, it is transplanted to the mud surface. Therefore, the seedling planting rod 6 serves as a seedling extracting device for extracting seedlings on the seedling mounting table 5.

A laterally moving rod 13 is mounted on the gear box 4 in a lateral direction, and is provided so as to be reciprocated right and left by the power of the engine of the traveling vehicle body 1. Support plates 14 fixed to both sides of the laterally moving rod 13 are provided. Is fixed to the lower abdomen of the seedling mounting table 5, so that the seedling mounting table 5 can be reciprocated right and left by the power of the engine.
A plurality of aggregates 15, 15... Are fixed side by side to the lower abdomen of the seedling mounting table 5 (FIG. 3). As shown in FIG. 2, on the upper surface of the seedling mounting table 5, five walls 5a and 5b are formed by bending the plates upward, and four walls are provided on four bottom plates 16, 16. Mat seedlings can be placed vertically and horizontally. In addition, each bottom plate 16 has a length such that two mat seedlings can be placed vertically, and eight mat seedlings can be placed at one time. The left and right walls 5a are made narrower than the central wall 5b. Also, the upper wall above the middle portion of the wall 5b at the center portion is cut open so that a pair of left and right links described later protrudes. And the above-mentioned aggregate 1
Are located on both sides of the lower surface of each of the bottom plates 16, 16,....

[0010] Four feed belts 17 are provided on each bottom plate 1.
The mat seedlings (transplanted mat seedlings) provided at the lower end portions of the sixteen
6 ... It is designed to be sent intermittently to the side. Although the detailed structure is omitted because it is well known, when the seedling mounting table 5 reaches the left and right ends, the rotation in the gear box 4 is given to the rollers supporting the gear box 4 and rotates by a predetermined amount. It is made like this. Further, instead of the feed belts 17, 17,..., A claw-type one that projects upward from the bottom plates 16, 16,... And rotates may be used, and the inclination of the bottom plates 16, 16,. If it can be set, a non-powered type that slides down with the power of the mat seedling itself may be used.

Next, the seedling supply device will be described . The four belt conveyors 18 have respective bottom plates 16, 16 ...
It is provided on the upper part. The conveyor 18 has a bottom plate 1
It is made about 1/3 the width of 6. The belt conveyor 18 serves as a seedling supply unit. In the following, one of the four objects is the same or the object, and only one of them will be described. As shown in FIG. 3, the drive shaft 19 is
Is supported, and the gear 20 at the end is the output shaft 2 of the motor 21.
The second gear 23 is driven by being engaged therewith. The drive roller 24 is fixed to the drive shaft 19, and has an upper end protruding above the bottom plate 16. A driven roller 25 is provided slightly above the middle of the bottom plate 16, and the belt conveyor 18 is wound around the driving roller 24 and the driven roller 25. As shown in FIG. 1, in this embodiment, the belt conveyor 18 is bent in a letter shape, and guide rollers 26, 26 are provided at the bent portions. When the mat seedling to be added is placed on the belt conveyor 18, the belt conveyor 18 is rotated by the rotation of the motor 21, so that the mat seedling is sent out toward the transplanted mat seedling. The mat seedling to be replenished is sent out as described above, and the lower end thereof comes into contact with the upper end of the transplanted mat seedling, and when the contact pressure reaches a certain value, the motor 21 operates because the load exceeds the certain value. , Its rotation is stopped. The transplanted mat seedling is formed to have a certain width, and the seedling rod 6 is cut off laterally, and after being cut off at the lateral end, is pulled out and moves intermittently as described above. Therefore, the motor 21 repeats rotation and stop so as to follow this movement. Therefore, this motor 21 is a torque motor, a motor having a load strain meter provided on the output shaft 22 and turning on / off depending on the magnitude of the distortion, a motor having an ammeter and turning on / off depending on the magnitude of the used current, etc. Is used. In this case, the load strain meter or ammeter
The end of the seedling to be supplied is the end of the seedling previously supplied to the seedling removal device 6 side
To detect that the contact pressure has reached a predetermined value.
Detection means, and the magnitude of detection by the detection means
Means for turning ON / OFF the drive stops the supply operation of seedlings
It becomes a stopping means . Further, it is preferable that the contact pressure of the mat seedling can be set arbitrarily, such as a torque motor with a power controller or the like, so that the mat can be adapted to different floor materials.

As shown in FIGS. 1 and 3, two seedling mounting plates 27 and 28 are provided above the bottom plate 16. The seedling mounting plate 27 has left and right side walls 27a, 27a on which a spare mat seedling is placed, and the cutout 2 extends from the center to the rear.
7b, when it comes into contact with the bottom plate 16, the belt conveyor 18 protrudes upward, and the belt conveyor 18 sends out the above-mentioned spare mat seedlings. .. Are attached to the right and left aggregates 15 by four links 29, 29,... And move up and down. Similarly, the seedling placing plate 28 has left and right side walls 28a, 28a, and a spare mat seedling is placed thereon.
Further, a notch 28b is provided from the center to the rear, and the bottom plate 1
When it comes into contact with the seedling mounting plate 27 which is in contact with 6, the belt conveyor 18 projects upward and feeds out a spare mat seedling thereon. .. Are attached to the left and right aggregates 15 by four links 30, 30,..., And can be moved up and down by the rotation of the links 30, 30.

As shown in FIG. 3, the lower shafts 31 and 32 on the left side of the rear links 29 and 30 are formed as a double shaft which is superimposed, and gears 33 and 34 of the same diameter are provided at the right ends thereof. Fixed. A moving gear 37 is attached to an output shaft 36 of the motor 35.
Are slidably mounted, are moved by a shifter 39 moved by a solenoid 38, and are selectively engaged with the gears 33, 34.

As shown in FIG. 4 and FIG.
Seedling stoppers 40 and 41 are provided at the lower end (right end) of 8, respectively. These are provided in a pair on the left and right sides of the notches 27b, 28b of the seedling mounting plates 27, 28, respectively.
Since it is a symmetrical shape, the right one when viewed from the front will be described.
At 43, it is rotatably attached to the lower surface of each seedling mounting plate 27, 28, and the upper end is pulled by springs 44, 45 to normally close the outlet of the mat seedling on the seedling mounting plates 27, 28. These stoppers 40, 41 are provided with left-side legs 40a, 41a.
Rollers 46, 47 projecting below the lower surface at the lower end of the spring 4. When these rollers 46, 47 are pushed up, the spring 4
4 and 45 are stretched and rotated clockwise to open the outlet of the mat seedling.

As shown in FIG. 1 and FIG. 2, a switch 48 is provided on the bottom plate 16 slightly below the belt conveyor 18, and when the upper end (left end) of the mat seedling to be added passes above the switch, the motor 35 is turned on. Upon activation, as shown in FIG. 3, the moving gear 37 rotates the gear 33, and the link 29,
Are rotated clockwise in FIG. 1 so that the seedling mounting plate 27 is lowered onto the bottom plate 16. As shown in FIGS. 4 and 5, switches 49 and 5 are provided outside the side walls 27a and 28a.
0 is provided, and when this descends and its stylus operates,
The rotation of the motor 35 is stopped.

Therefore, the seedling transplanter configured as described above
Two mat seedlings on the bottom plate 16 and two seedling mounting plates 2
The mating seedlings are placed one on each of the mats 7, 28, and the mating seedlings are placed in four rows in a row, and a total of 16 mat seedlings are placed, and transplantation work is started. Then, planting is started from the lower (right side) mat seedling on the bottom plate 16, and each time the plant is reduced, the motor 21 rotates and the belt conveyor 18 places the matted seedling to be added on the seedling rod 6.
To supply. Subsequently, when the left end of the mat seedling to be added passes over the switch 48, the motor 35 is activated to lower the seedling mounting plate 27 on the bottom plate 16, and the spare mat seedling thereon is seeded by the belt conveyor 18. It is transferred to the 6 side. In addition, the left end of the spare mat seedling
After passing above, the upper seedling loading plate 28 descends onto the seedling loading plate 27, and the spare mat seedlings thereon are moved to the belt conveyor 18
Is transferred to the seedling rod 6 side. In this way, the seedling loading plate 2
When there are no more spare mat seedlings on the top 8, each of the seedling loading plates 27 and 28 returns to the original position (the state of FIG. 1) automatically or by an operation of another switch by the operator.

[Brief description of the drawings]

FIG. 1 is a side view of a part of a seedling plant according to the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is an enlarged front view of a part of the part.

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

FIG. 5 is an enlarged plan view of a part thereof.

[Explanation of symbols]

 5 Seedling stand 6 Seedling rod 18 Belt conveyor 21 Motor

Claims (1)

(57) [Claims] 1. A seedling, which is added to a seedling on the seedling mounting table 5 previously supplied to the seedling removal device 6 side, is sent to the seedling removal device 6 side by the operation of the seedling supply means 18 of the seedling supply device. In the seedling planting machine provided in the above, the seedling replenishing device is arranged such that the end of the another seedling to be added comes into contact with the end of the seedling supplied first to the seedling extracting device 6 side, and the contact pressure becomes a predetermined value. Detected
Seedling planting machine, characterized in that it is constituted by a stopping means for stopping the detection of the detecting means and the detection means the supply operation of seedlings to be.