JP2000092920A - Rolled seedling and rolled seedling transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the working property and working efficiency in rolling up a rolled seedling and to solve a trouble of breaking the parts of leaves and stems in forming the rolled seedling by rolling up a belt-shaped seedling. SOLUTION: This rolled seedling is obtained by laying a stand-regulating sheet S for regulating the standing of the fallen down leaves and stems on the upper surface of the belt-shaped seedling, and rolling up the stand-regulating sheet S together with the belt-shaped seedling in forming the rolled seedling 1 by rolling the belt-shaped seedling 2 in a state that the leaves and stems are falling down. Also, in the planting part 6 for transplanting the rolled seedling 1, a sheet recovering device (a seedling-holding down roller 31) for recovering the stand-regulating sheet S by rolling up, is installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a roll seedling formed by winding a band-shaped seedling into a roll, or the technical field of a roll seedling transplanter for transplanting a roll seedling.

[0002]

2. Description of the Related Art In recent years, transplanting of seedlings for rice transplanting and the like can be performed almost automatically with the advancement of the transplanting machine. Due to the difficulty of mechanization, it was still hard labor that relied on human power.
Therefore, light and long belt-shaped seedlings (long mat hydroponic seedlings)
Has been proposed to form a roll seedling by winding the seedling onto a transplanter. In other words, the weight of the seedlings (compared to the total amount) is not allowed to reduce the labor required to transport the seedlings. It is possible to measure up.

[0003]

By the way, when forming the roll seedling, the band-shaped seedling is wound up in a state where the leaf stem is laid down, but the folded leaf stem is restored to an upright state. Because of this, the workability and work efficiency at the time of winding may not be inferior, and the upstanding leaf stem may be broken during winding and adversely affect transplantation accuracy and growth after transplantation.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve these problems in view of the above-mentioned circumstances, and is a roll formed by winding a band-shaped seedling into a roll. In the seedling, when the band-shaped seedling is wound in a state where the leaf stem is laid down, an upright regulation sheet for regulating the standing of the folded leaf stem is laid on the upper surface of the band-shaped seedling, and the upright regulation sheet is attached to the band-shaped seedling. It is characterized in that it is wound up together with. In other words, when winding the band-shaped seedling in the state where the leaf stem is lying down, restoration of the folded leaf stem to the standing state is regulated by the standing regulation sheet, so that the workability and work efficiency at the time of winding are improved. In addition, the standing regulation sheet can prevent the damage to the seedlings, so that the transplanting accuracy cannot be improved, and the growth after transplantation can be promoted. Also, a roll seedling holding device for holding a rolled seedling in which a band-shaped seedling is wound in a roll shape, and a seedling mounting table for guiding a band-shaped seedling fed from the rolled seedling holding device downward along a seedling mounting surface. And a transplanting device that scrapes an appropriate number of seedlings from the band-shaped seedlings guided to the lower end of the seedling mounting table and transplants the seedlings to a field. The present invention is characterized in that a sheet collecting device is provided for winding up and collecting the standing regulation sheet fed from the seedling together with the band-shaped seedling. In other words, a roll seedling is formed by winding the rising regulation sheet together with the band-shaped seedling, and when the roll seedling is transplanted by the roll seedling transplanter, the rising regulation sheet is wound up and collected by the sheet collection device. The inconvenience that the sheet adversely affects the feeding of the seedlings and the scraping of the seedlings can be avoided.

[0005]

Next, one embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a roll seedling. The roll seedling 1 is provided with a reinforcing mat material such as a nonwoven fabric in a long (for example, 30 cm wide and 6 m long) seedling raising case, and a predetermined amount is laid there. Seedlings are sown, and the seedlings are raised by hydroponic cultivation for a predetermined period of time to produce band-like seedlings (long mat hydroponic seedlings) 2 in a rooted state, and the leaf stem portion of the band-shaped seedlings 2 is taken up in the winding start direction or It is produced through a winding operation of winding the roll core 3 on the roll core 3 while lying down in the winding end direction.

[0006] S is a belt-shaped seedling 2
The rising regulation sheet S is adapted to the width and length dimensions of the band-shaped seedling 2 and regulates or suppresses restoration of the folded stem to the standing posture. It has the weight to the extent possible. And
The roll seedling 1 using the standing regulation sheet S is used to lay the leaf stems of the band-shaped seedling 2 in a predetermined direction using tools such as a lodging roller and a lodging board. And an operation of winding the band-shaped seedling 2 around the roll core 3 together with the standing regulation sheet S. That is, when the band-shaped seedling 2 is wound in a state in which the leaf stems lie down, the restoration of the folded leaf stems to the upright state can be regulated by the upright regulation sheet S. The work efficiency can be improved, and the standing regulation sheet S can prevent the seedling from being folded or damaged, so that the transplanting accuracy cannot be improved, and the growth after transplantation can be promoted. It has become.

[0007] On the other hand, reference numeral 4 denotes a traveling machine of the riding rice transplanter. A planting section 6 is connected to a rear portion of the traveling machine 4 via an elevating link mechanism 5. And the planting section 6
Is a holder frame 7 detachably connected to the lifting link mechanism 5, a planting section frame 8 rotatably connected to the holder frame 7, and a drive case 9 integrally assembled with the planting section frame 8. , The drive case 9
Planting cases 10 projecting rearward from the apron 1, and an apron 1 disposed above and above the planting case 10 in a lateral direction.
1. A seedling table 1 that can move left and right along the apron 11
2. The lower end of the seedling table 12 (the scraping port 11 of the apron 11)
It is composed of a planting claw (transplanting device) 13 for scraping a seedling from a) and planting it on the rice field, a float 14 sliding on the rice field, and the like.

The seedling mounting table 12 is disposed above the drive case 9 in a front-to-back and rear-to-bottom inclined posture, and has a plurality of vertically oriented guide ribs (convex portions) on its upper surface (rear surface). Seedling mounting surfaces 16 are formed for the number of the planting lines (for example, five lines) divided by 15. That is, the above-mentioned roll seedling (band-shaped seedling) 1 set on each seedling mounting surface 16 is supplied and guided toward the lower planting claw 13 while restricting lateral displacement by the left and right guide ribs 15. The whole is reciprocated in the left-right direction by the power of a seedling table lateral feed mechanism (not shown) incorporated in the drive case 9.

Reference numeral 17 denotes a rotary case which is assembled to the rear end of the planting case 10;
7 comprises a pair of planting claws 13 at both ends and a planetary gear mechanism (not shown) for rotating the pair of planting claws 13 along a predetermined trajectory with its own rotation. I have. That is, the planting claw 13 enters the scraping opening 11 a formed in the apron 11 by a predetermined size to scrape an appropriate number of seedlings from the lower end of the roll seedling 1, It is designed to rotate cyclically between the planting process that releases the seedlings.

Reference numeral 18 denotes a vertical feeding mechanism provided on each seedling mounting surface 16 of the seedling mounting table 12. In the vertical feeding mechanism 18, a lower driving roller 19 and an upper driven roller 20 are interposed between the lower driving roller 19 and the upper driven roller 20. Feed belt 21 composed of a wide belt with projections
And the drive roller shaft 19a is linked to a vertical feed lever (not shown) via a ratchet mechanism (not shown). That is, when the seedling mounting table 12 reaches the horizontal feed end, a vertical feed drive cam (not shown) provided in the drive case 9 is configured to hit the vertical feed lever, and the vertical feed lever is knocked up. In this case, as the drive roller 19 interlockingly connected via the ratchet mechanism rotates by a predetermined amount, the tension side (the seedling contact side) of the vertical feed belt 21 moves downward by a predetermined feed amount and the roll is rolled. The seedlings 1 are vertically fed toward the apron 11. In this embodiment, the vertical feed mechanisms 18 of each strip are configured in two stages, and the vertical feed mechanisms 18 are linked and connected via a chain transmission mechanism 22. are doing.

Now, at the position facing each seedling mounting surface 16,
A roll seedling holding portion 24 that holds the rolled seedling 1 around which the band-shaped seedling is wound so as to be able to be drawn out via a roll seedling support shaft 23, and regulates the rising and lateral displacement of the roll seedling 1 at a position opposed to the upper vertical feed belt 21. A rotary upper seedling holding body 25, a rotary lower seedling holding body 26 that regulates the rising and lateral displacement of the roll seedling 1 at a position facing the lower vertical feeding belt 21, an apron 11, and a vertical feeding belt 21. Between them, there is provided a rotary side slip prevention body 27 for preventing the roll seedling 1 from shifting sideways. That is, the roll seedling 1 fed from the roll seedling holding unit 24 is vertically fed toward the apron 11 by the vertical feed belt 21 while being held by the upper seedling holding body 25, the lower seedling holding body 26, and the lateral displacement prevention body 27. , The apron 11 scraping opening 11
A roll seedling transplanter is configured to scrape an appropriate number of seedlings that are waiting in the field with the planting claws 13 and plant the seedlings on the rice field.

The upper seedling holding body 25 is provided with a pair of brackets 28 erected on both right and left ends of the seedling mounting table 12, and left and right swingably movable (movable in a direction of contacting and separating the seedling mounting surface). It is composed of a pair of seedling holding arms 29, a seedling holding support shaft 30 provided between the left and right seedling holding arms 29, a seedling holding roller 31 rotatably fitted to the seedling holding support shaft 30, and the like. Then, the seedling holding roller 31 places the roll seedling 1 fed along the upper vertical feed belt 21 on the upper side of the upper vertical feed belt 21 by its own weight (including an arm load or the like) or the urging force of a not-shown elastic machine. Pressing prevents the upper vertical feed belt 21 from slipping due to the rising of the roll seedlings 1 and restricts the lateral displacement of the roll seedlings 1. When the roll seedling 1 is set in the roll seedling holding section 24, the starting end of the rising regulation sheet S is fixed to the seedling holding roller 31.
When the roll seedling 1 is fed, the seedling holding roller 31 rotates to wind up and collect the rising regulation sheet S. In other words, when transplanting the roll seedling 1 in which the rising regulation sheet S is wound up together with the band-shaped seedling 2, the rising regulation sheet S is wound and collected between the feeding position of the roll seedling 1 and the scraping position. The inconvenience that S has an adverse effect on the seedling feeding and the scraping of the seedlings can be avoided, and in the present embodiment, the upper seedling holding body 25 for preventing the upper vertical feed belt 21 from slipping is also used as the sheet collecting device. Therefore, there is an advantage that the method can be performed without increasing the number of parts, complicating the structure, increasing the cost, and the like.

In the structure constructed as described above, when the band-shaped seedling 2 is wound up in a state where the leaves and stems lie down to form a roll seedling 1, the tops of the band-shaped seedlings 2 Since the erecting control sheet S for restricting the erecting is laid and the erecting control sheet S is wound up together with the band-shaped seedling 2, it is possible to restrict the restoration of the leaf stem portion to the upright state during the winding, thereby improving the winding workability. The work efficiency can be improved, and the standing regulation sheet S can prevent the seedlings from being folded or damaged, so that they can contribute to improvement of transplantation accuracy and promotion of growth after transplantation.

In transplanting the roll seedling 1, a sheet collecting device for winding and collecting an upright control sheet S fed out from the roll seedling 1 together with the band-shaped seedling 2 is provided in a planting section 6 which is a roll seedling transplanting machine. Since the (seedling holding roller 31) is provided, it is possible to avoid the inconvenience that the rising regulation sheet S adversely affects the feeding of the seedlings and the scraping of the seedlings.

Further, since the upper seedling presser body 25 for preventing the upper vertical feed belt 21 from slipping is also used as the sheet collecting device, the present invention can be carried out without increasing the number of parts, complicating the structure and increasing the cost. There are advantages.

The present invention is, of course, not limited to the above-described embodiment. For example, the sheet collecting device is not limited to a device using a driven roller that is driven to rotate with the feeding of seedlings. Needless to say, the rising regulation sheet may be collected using a driving roller to which a driving force is separately supplied. In this case, the rotational force of the drive roller acts on the roll seedling in the direction in which the roll seedling is drawn out via the standing-up regulating sheet. As a result, the elongation of the band-shaped seedlings in the length direction and the accompanying shrinkage in the width direction can be prevented, and the lack of stock and the variation in the number of plants planted can be avoided.

In the above embodiment, the upper seedling presser body 2 is provided.
5 is also used for the sheet collecting device, but as shown in the drawing, the seedling holding roller 32 provided on the lower seedling holding body 26 is also used for the sheet collecting device, or a dedicated sheet collecting device is configured. It is also possible.

[Brief description of the drawings]

FIG. 1 is a side view of a riding rice transplanter.

FIG. 2 is a side view of a main part of the planting section.

FIG. 3 is an explanatory diagram showing a procedure for winding a roll seedling.

FIG. 4 is a main part side view showing another example of the planting part.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 roll seedling 2 band-shaped seedling 3 roll core 4 running machine 6 planting unit 12 seedling mounting table 13 planting claw 24 roll seedling holding unit 25 upper seedling holding body (sheet collecting device) 31 seedling holding roller S standing regulation sheet

Claims (2)

[Claims] In a roll seedling formed by winding a band-shaped seedling into a roll shape, when the band-shaped seedling is wound in a state in which a leaf stem is laid down, a folded leaf-stem part is formed on an upper surface of the band-shaped seedling. A roll seedling, comprising: laying an upright control sheet for controlling the uprighting, and winding up the upright control sheet together with the band-shaped seedling. 2. A roll seedling holding device for holding a rolled seedling in which a band-shaped seedling is wound in a roll shape, and a belt-shaped seedling fed from the roll seedling holding device is guided downward along a seedling mounting surface. A roll seedling transplanter, comprising: a seedling mounting table; and a transplanting device that scrapes an appropriate number of seedlings from a band-shaped seedling guided to a lower end of the seedling mounting table and transplants the seedlings to a field. A roll seedling transplanter further comprising a sheet collecting device that winds and collects the standing regulation sheet fed out from the roll seedling together with the band-shaped seedling.