JP2854382B2 - Method for producing transplanted seedlings in rush transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for producing transplanted seedlings in a rush transplanter.

<Conventional technology> Conventionally, when planting transplanted seedlings of this kind of rush, for example, when this is a rush, a seedling cultivated in a nursery is dug out, and about 3 to 10 new shoots are attached from the seedling. The planted seedlings that had been sorted and sorted were transplanted by hand planting, but the hand planting was labor intensive and the work efficiency was extremely low.

Therefore, in order to save labor and reduce labor by hand, conventionally, for example, as described in JP-A-1-148123, JP-A-1-148114, JP-A-1-196206 and the like, Various types of transplanters have been devised.

<Problems to be Solved by the Invention> By the way, transplanted rushes are newly established by the growth of shoots near the roots of the seedlings. If there is only one, or if the shoots are damaged, the planted seedlings die or become stunted. Therefore, during the stock splitting work,
Great care must be taken to ensure the proper number of seedlings with intact shoots.

In other words, since the planting of planted seedlings is closely related to the subsequent yield and quality, it is important to carefully and rationally use the new shoots as a standard and not to damage the new shoots. This leads to increased sales of rush.

On the other hand, the rhizomes of the rush that grow in the nursery grow in a spiral shape, and the roots of the excavated seedlings are entangled with each other, making it difficult to divide them. Therefore, in the rush planting work machine, when an operation of scraping and planting seedlings for planting grown on a mat-shaped nursery in order, like a paddy rice planting machine, is adopted, new shoots can be obtained. And it is difficult to uniformly scrape off an appropriate amount of seedlings.

Further, even in the transplanting machine shown in the above-mentioned conventional technology, since the planting mechanism is similar to that of the paddy rice transplanting machine, pretreatment such as loosening of seedlings was labor-saving. In such a case, it was difficult to uniformly scrape an appropriate amount of the seedling strain, and the transplanted seedlings were liable to be damaged by sprout or stem and to have poor growth. Further, in order to avoid these problems, it is necessary to perform the pretreatment of the seedlings by a conventional manual operation, which is time-consuming, and the meaning of mechanization has been reduced by half.

Therefore, in order to rationally mechanize the transplanting process of rush, it is necessary to prepare the transplanted seedlings according to the transplanting machine so that the transplanting can be easily performed.

The present invention is intended to simplify the pretreatment process of the transplanted seedlings and improve the efficiency by pre-treating the transplanted seedlings in the rush transplanter onto a flat plate having a certain thickness, and further to improve the efficiency of the transplanted seedlings, By providing a cutting device that cuts the seedlings to a certain width, a certain amount of transplanted seedlings can be obtained based on the concept of constant thickness × constant width = constant number of stems (number of sprout), It is intended to improve the growth after transplantation by protecting.

<Means for Solving the Invention> The method of the present invention for solving the problems as described above,
By applying pressure from the side to the seedlings that have been dug out in an appropriate amount and deformed into a flat shape, a plurality of the flat seedlings are connected,
The present invention is characterized in that the connected seedlings are integrally formed in a belt shape by fixing means.

<Action> The rhizome of the excavated seedling 23 has an arbitrary shape,
In order to make this into a flat shape having substantially the same thickness, after loosening the connection of the rhizome, pressure is applied to the opposing rhizome portion.
A plurality of flattened seedlings 35 are connected and integrated by a fixing means to form a belt-shaped transplanted seedling conforming to the standard of the transplanter.

<Example> An example of the present invention will be described below in detail with reference to the drawings. FIG. 2 is an overall side view of the riding rush transplanter 1.
A traveling vehicle body 2 constituting the riding rush transplanter 1 is supported by front wheels 3 and rear wheels 4. A driver's seat 5 is disposed above the rear wheels 4, and a steering wheel 6 is provided in front of the driver's seat 5. There is provided an operation unit 7 on which the etc. are arranged.

A lifting link 8 is connected to a lower rear portion of the driver's seat 5, and a planting work section 9 is attached to a rear end of the lifting link 8. The lifting link 8 is raised and lowered by a hydraulic cylinder (not shown) provided between the traveling link 2 and the traveling vehicle body 2, and is a three-point link constituted by an upper link 10 and a pair of lower links 11.

Next, the configuration of the planting work section 9 will be briefly described.
It is supported to be able to swing left and right, and the transmission shaft case
Driving force is transmitted via 12. A drive case 13 is disposed on the rear side of the connection part.
, Planter cases 14 are arranged rearward for each planting strip. Above the planter case 14, a seedling mounting table 15 is slanted forward. At the rear end of the planter case 14, planting rods 16 facing the lower end of the seedling mounting table 15 are provided, and at the lower end of the planter case 14, a float 17 that slides on a paddy surface is attached. .

As shown in FIG. 3, the seedling mounting table 15 is provided with a seedling storage section 18 for each planting line. The seedling storage unit 18 stores the transplanted seedlings 19 formed in a belt shape, and guides the transplanted seedlings 19 to the lower scraping unit while changing the holding posture of the transplanted seedlings 19. Seedling storage unit 18
Root guide body 20 that contacts and guides the rhizome section of 19
And a tip guide 21 that contacts the tip side.

The stem guide body 20 and the tip guide body 21 are provided narrower downward, and the height of the tip guide body 21 is formed higher toward the lower side. 19
Is supplied from the upper supply section 22 in a landing state, and is changed by the tip guide body 21 to a standing posture along the scraping drive direction of the planting rod 16 immediately before the lower scraping section.

Hereinafter, a method for producing the transplanted seedling 19 will be described. After loosening the connection of the rhizomes, the seedlings 23 dug out in an appropriate amount from the seedbed are flattened by applying pressure from both sides by a flattening device 24 shown in FIG.

The flattening device 24 is configured by flat rollers and the like provided on the table 25 in pairs. A pair of feed rollers 26 are arranged on the table 25, and a plate 27 that swings around a drive shaft of the feed rollers 26 is provided at a base end of the feed roller 26. A driven roller 28 is pivotally supported at the end of the plate 27 in the feed direction, and a feed belt 29 is wound around the feed roller 26 and the driven roller 28.

As shown in FIG. 4, a spring 30 is interposed between the plate 27 and the table 25 at the rear end thereof.
27 is urged in the closing direction on the driven roller 28 side. still,
The swing of the plate 27 is regulated by a stopper 31 erected on the table 25.

On the delivery side of the feed belt 29, a pair of flattened rollers 32 for projection are arranged, and a plurality of rollers with projections 32, which is a mechanism for sandwiching and feeding the seedlings 23 between the rollers, are provided along the peripheral surface. The streaks 33 are arranged at regular intervals, and when the seedlings 23 pass between the rollers 32 with projections, the roots of the seedlings 23 are compressed at regular intervals by the streaks 33. Are repeated, and the pressure is biased.

A pair of finishing rollers 34 each having a smooth peripheral surface are arranged on the side of the roller with projections 32 on the seedling 23 delivery side.

The drive device for each of the rollers 26, 32, 34 is provided below the table 25, and is set so that the roller 32 is slightly faster than the transfer speed of the roller 26.

As shown in FIG. 4, when the seedlings 23 are inserted between the feed rollers 26, the feed belt 29 drives the feed rollers 26 to transfer the roots of the seedlings 23 while pressing them from both sides. Note that the feed belt 29 is supported by the swing plate 27, and the interval is adjusted according to the amount of the seedlings 23.

After the seedlings 23 are slightly deformed by the feed belt 29, the root portion of the seedlings is further flattened by the rollers 32 with projections, and then the thickness in the flattened state is made uniform by the finishing rollers 34. 35 is obtained.

According to the flattening device 24 having the above-described configuration, the sprouts located at the base of the seedlings 23 do not make sliding contact with each other.
23 can be changed to a flat shape which is a uniform shape.

The seedlings 35 flattened by the flattening device 24 are cut at the tip side, aligned to a certain length, and arranged in the vertical direction, integrated by a support 36 made of paper tape, and configured in a belt shape.

Hereinafter, the belt-shaped transplanted seedling production apparatus 41 will be described. First
FIG. 5, FIG. 5 and FIG. 6 are side views of the transplant seedling production apparatus 41,
It is a front view and a plan view.

The transplanting seedling production apparatus 41 is a feeding and conveying unit that continuously supplies the flat-shaped seedlings 35 in a connected state while making the flat-shaped seedlings 35 come into close contact with each other at the connected portion.
42 and the support that integrates the supplied seedlings 35 in a connected state
It comprises a support mounting portion 44 for mounting 36, and an unloading portion 45 for unloading a belt-shaped transplanted seedling integrated with the support 36.

The supply conveyance section 42 has a structure in which a conveyance belt 48 is wound around a pair of drive rollers 46 and a driven roller 47 disposed at positions vertically sandwiching the seedlings 35 to be supplied. is there. As shown in FIG. 6, the conveyor belt 48 is configured to have a width that allows the conveyor belt 48 to be conveyed in a state where the shoots and leaves are sandwiched and the rhizomes and shoots are exposed. Holds stock 35.

The seedlings 35 are continuously supplied to the supply and transport section 42, and are transported to the support mounting section 44 with the front and rear ends of each of the seedlings 35 closely connected as shown in FIG. You.

The support mounting portion 44 includes a supply roller 49 that supplies a support 36 made of paper tape, a guide roller 50 that guides the support 36 drawn out from the supply roller 49 to the conveyed seedlings 35, and makes the support 36 closely contact the seedling 35. It comprises a ring-shaped thread winding mechanism 51 rotatably supported.

The above-described tape-shaped support 36 is wound around the supply roller 49, and is supported at a position corresponding to the sprout at the upper part of the root of the seedling 35 as shown in FIG.

The seedlings 35 carried out from the supply / transport section 42 are held by a tape-shaped support 36. Then, the guide roller 50 comes into contact with the seedling 35 and the support 36 pulled out from the supply roller 49.
To the seedling 35.

Seedlings 35 with supports 36 attached to both sides
Pass through.

The bobbin winding mechanism 51 includes a rotating body 52 having a circular ring shape and a rotating body 52.
At three points. Of the three support rollers, a support roller with a reference numeral 54 is a drive roller, and transmits a rotational force by friction with the rotating body 52. The other support rollers 53 and 55 are idle rollers. Inside the rotating body 52, a scraper 57 having a thread 56 wound around the support 36 attached to both sides of the seedling 35 is provided toward the center of the rotating body 52.

A thread spool 58 is provided in the scraper 57, and a thread guide roller 59 is pivotally supported at the tip. Also, the scraper 57
As shown in FIG. 1, the end side of the rotation direction side has a shape that can easily push the leaf tip side of the seedling 35. And with respect to the rotating body 52. As shown in FIG. 5, the insertion position of the seedling 35 is configured such that the attachment portion of the support 36 is located at the center of rotation of the rotating body 52. With such a position, the winding tension of the thread 56 around the seedling 35 becomes uniform.

The rotating body 52 is rotated by the driving of the support roller 54, and the scraper 57 winds the thread 56 while rotating around the support 36 attached portion of the seedling 35. Since the seedling 35 moves with the driving of the thread winding mechanism 51, the thread 56 is spirally wound as shown in FIG.

At the support mounting part 44, the support 36 and the thread 56 are wound, and the continuously supplied seedlings 35 are integrated belt-shaped transplanted seedlings.
It is assumed to be 60. As described above, in the method of the present embodiment, the support 36 and the thread 56 are used as the fixing means for integrally forming the connected seedlings 35 in a belt shape.

The seedling 35 to which the support 36 and the thread 56 are attached is sent out while being supported by the unloading section 45 arranged on the unloading side of the thread winding mechanism 51.

The unloading section 45 is a mechanism similar to the supply and transport section 42, and is configured by winding a transport belt 62 between a driving roller (not shown) and a driven roller 61 supported at vertically opposed positions, and the upper and lower transport belts 62. The band-shaped transplanted seedlings 60 are carried out between the two.

The belt-shaped transplanting seedling 60 produced by the transplanting seedling manufacturing apparatus 41 described above is cut into a tape shape having a predetermined length L in accordance with the structure of the transplanting machine such as a cut type or a long type. Transplant seedlings 19 supplied to the seedling table 15 as shown in the figure
Is obtained. As shown in FIG. 7, an adhesive tape 63 is attached to the cut portion to prevent fraying of the thread 56 after cutting.

As described above, when the excavated arbitrary amount of seedlings are treated in a flat manner, the length of each seedling 35 varies, but is connected and integrated as a band-shaped transplanting seedling 60 by the transplanting seedling manufacturing apparatus 41. After that, if the plant is cut to a desired length, transplanted seedlings 19 of the same standard can be obtained stably.

The transplanted seedlings 19 manufactured as described above have advantages in that they can be easily handled and transported, and that seedlings can be replenished extremely easily. In particular, since the shoots are protected by the mounting of the support 36, troubles such as damage or chipping of the shoots during handling or planting work are reduced, and a stable yield is always efficiently obtained. There are advantages.

In the above-described embodiment, the fixing means is provided with the support 36 and the thread 56 made of a paper tape, but the seedlings 35 are integrated with each other by using a single-sided adhesive tape instead of a thread or using a stapler or a sewing machine. Alternatively, the seedlings 35 may be adhered in an articulated state with an adhesive to be integrated. However, the adhesive in this case is desirably a quick-drying adhesive.

<Effect of the Invention> According to the method for producing transplanted seedlings of the present invention configured as described above, since the work of dividing the dug up seedlings becomes unnecessary, the lack of sprout or damage during the division of the seedlings is eliminated, and the planting is performed. The disadvantage that seedlings die is reduced.

In addition, by transforming the seedling into a strip, transplanted seedlings of substantially the same standard can be obtained, so that the handling performance of the transplanted seedlings is good, planting by the transplanting machine is easy, and the transplanting machine itself has a simple structure. And so on.

Furthermore, since seedlings can be continuously supplied and transplanted seedlings can be continuously produced, there is an advantage that a large amount of transplanted seedlings can be obtained with a small amount of work, and it is not necessary to perform a sorting work. In combination with the above point, the work efficiency can be remarkably improved as compared with the preliminary work in the conventional transplanter.

[Brief description of the drawings]

FIG. 1 is a side view of a transplanting seedling manufacturing apparatus, FIG. 2 is an overall side view of a riding rush transplanter, FIG. 3 is a partial rear perspective view of a seedling mounting table,
FIG. 4 is an overall perspective view of the flattening apparatus, FIG. 5 is a front view of the transplant seedling production apparatus, FIG. 6 is a plan view of the same, and FIG. 7 is a partial side view showing a state of the band-shaped transplant seedling immediately before cutting. . 19: transplanted seedlings, 35: seedlings 36: support, 41: transplanting seedling manufacturing device 42: supply and transport unit, 44: support mounting unit 45: unloading unit, 56: thread

Continuation of the front page (56) References JP-A-46-2635 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01C 1/00

Claims (1)

(57) [Claims] 1. A method of applying pressure from the side to an underground stem portion of a seedling that has been dug out in an appropriate amount to deform the seedling in a flat shape, connecting the flat seedlings, and fixing the connected seedlings by fixing means. A method for producing transplanted seedlings in a rush transplanter constructed integrally in a belt shape.