JPH0655046B2 - Automatic seeding plant - Google Patents

Description

TECHNICAL FIELD The present invention relates to an automatic seeding plant for producing a large amount of mat-like seedlings used in planting work in a rice transplanter.

[Conventional technology]

As an automatic seeding plant as described above, for example, JP-A-63
As disclosed in JP-71025-A, a nursery box that has been sowed and covered with soil is sent to a predetermined position in an elevator type vertical transport device by a transport conveyor, and the fed nursery box is vertically transported. There is a configuration in which the apparatus sequentially sends the particles upward or downward, and transfers the seedling raising boxes from another upper or lower end of the vertical conveying apparatus to another germination table and stacks them.

[Problems to be Solved by the Invention]

In the case of improving the processing capacity in the automatic seeding plant as described above, if the efficiency of seeding and covering the seedling raising box and raising the feeding speed of the conveyer conveyor are increased, the raising and lowering feeders for raising seedling raising boxes will be accompanied. It has to be quickly fed into place inside.

Therefore, whether the nursery box is sent to a predetermined position by the feeding action of the conveyor, or whether it is sent by another mechanism such as a pusher, the nursery box that has been sent into the vertical transport device at high speed is moved by the stopper or the like. A sudden stop will occur at a predetermined position inside. In such a state, the seeds and cover soils that are evenly sown in the nursery box move to one side when suddenly stopped, and a good mat-like seedling cannot be obtained.

Here, the present invention has been made by paying attention to the above problems, in the case of increasing the feeding speed of the nursery box,
The purpose is to prevent the seeds and soil in the nursery box from moving at a predetermined position in the vertical transport device.

[Means for Solving the Problems]

The features of the present invention, in the automatic seeding plant as described above, in the transport path between the seeding device and the upper and lower transporting device, the seedling raising box on the transporting path is lifted and supported to support the next seedling raising box at the bottom. There is a stacking device for stacking the seedling raising box that has been lifted when it is sent to the seedling raising box below, and it is configured that the stacked seedling raising boxes are fed into the vertical transport device. The actions and effects are as follows.

[Action]

For example, as shown in FIGS. 1 and 2, one of the nursery boxes (1) on the conveying path is lifted upward and stopped at that position, and the next nursery box (1) is lifted. When sent under the box (1), the upper nursery box (1) is lowered and stacked. In this way, when the seedling raising boxes (1) are stacked in a plurality of stages, the spacing (L ₂ ) between the stacked seedling raising boxes is sufficiently wider than the spacing (L ₁ ) before the stacking.

As a result, as shown in FIG. 6, even if the feeding speed of the nursery box (1) is increased, the multi-stage nursery box (1) can be moved up and down by the vertical transfer device (10).
It is possible to secure a certain amount of time from when the seedling raising box (1) is fed into the inside to the position immediately before the upper and lower transfer device (10). Therefore, the relatively slow speed of the multi-stage nursery box (1) (speed at which the soil does not move)
It can be fed into the vertical transport device (10).

Also, in the vertical transport device (10), after the fed nursery box (1) is sent upward or downward, it is stopped for a relatively long time until the next nursery box (1) is fed. As a result, the transfer device (16) can move the seedling raising box (1) to the germination table (17) and stack the transfer box (1) at a low speed such that the soil does not move and with a relatively large margin. Also, transfer device
Since the seedling raising boxes (1) already stacked in multiple stages are sent to (16), these multiple stages of seedling raising boxes (1) can be used at the same time as a germination stand.
It can be moved to (17).

Then, in comparison with a configuration in which the front side (lower side of transportation) of the seedling raising box is lifted in the transport path and is fed to the rear side (the upper side of transporting) to be stacked on the rear side of the seedling raising box, the structure of the present invention is lifted upward. Since the seedling raising box that is stopped is stopped at that position, the relative speed difference between the next raising seedling box that is sent below and the seedling raising box that is supported above is as small as the feeding speed of the transport path. Since it will be a thing, the nursery box supported above is relatively accurate to the nursery box coming below, and
It can be easily stacked.

〔The invention's effect〕

As described above, at the time of feeding the seedling raising box into the upper and lower carrier, and at the time of reloading the seedling raising box from the upper or lower end of the upper and lower carrier, the soil and seeds may move in the nursery box. It is possible to increase the feeding speed of the whole nursery box while suppressing it, and it is now possible to transfer multiple nursery boxes to the germination table from the upper or lower end of the vertical transport device at one time, thus improving the processing capacity of the entire automatic seeding plant. I was able to improve.

Further, as a similar effect can be expected, it is conceivable to use a means for branching the conveying path from the middle to two stages, upper and lower, or left and right. However, such means requires a great change in the conveying path and a space. On the other hand, such a need is not particularly necessary in the present invention.

Further, it becomes possible to stack the seedling raising boxes while suppressing the positional deviation, and it becomes easy to perform post-treatments such as feeding into the upper and lower conveying devices and transferring to the germination table.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

Empty nursery boxes in a stacked condition, as shown in FIG.
Feed conveyor (2) sending (1), this feed conveyor
Elevator (3) that lowers the seedling raising box (1) from (2) to the working level in a suspended state, and takes out the stacked seedling raising boxes (1) one by one and sends them to the conveyor (5). The box feeding device (4) or the like constitutes a seedling raising box feeding thread. And the nursery box (1) sent by the conveyor (5)
In the bed soil supply section (6) for supplying bed soil to the soil, the watering section (7) for spraying water on the bed soil, the sowing section (8) for sowing seeds on the bed soil, and the seedling raising box (1) after sowing. Sowing device at the soil cover part (9) that covers the soil
(11) is configured. Further, the soil is supplied to the floor soil supplying section (6) and the soil covering section (9) through the lifting conveyor (19), the intermediate conveyor (20) and the forward / reverse conveyor (21).

The seeded nursery box (1) sent by the transfer conveyor (5) is sent to the vertical transfer device (10) from the transfer conveyor (5). Next, the structure of feeding the seedling raising box (1) to the vertical transport device (10) will be described in detail. As shown in FIG. 1 and FIG. 2, the left and right positions of the seedling raising box (1) are sent. Guides (12) for correcting the deviation are provided on both left and right sides of the conveyor (5), and the guides (12) are provided with comb-like notches (12a) at a plurality of positions.

On the other hand, on both outer sides of the guide (12), as shown in FIG.
Horizontal axis (P ₁ ) along the conveyor (5) as shown
A stacking device (13) swingably driven is provided around the stacking device (13), and the stacking device (13) includes a comb-shaped support arm (13a) that can be operated to move in and out freely. And this stacking device
In the vicinity of (13), a counter (1
4) is provided.

With the above structure, the counter (14) has an even number of nursery boxes.
When (1a) is detected, the state shown in FIG.
As shown in the figure, the stacking device (13) facing downward with the support arm (13a) protruding is rocked upward, and comes out from the notch (12a) of the guide (12). The raised support arm (13a) lifts and supports the even-numbered seedling raising box (1a). Then, when the odd-numbered nursery box (1b) is sent to reach the counter (14), the support arm (13a) is moved in and out as shown in Fig. 5, and the even-numbered nursery box (1a) is operated. Will fall down and be stacked on the odd-numbered seedling raising box (1b).

Transport rollers (2 that lead to the end of the transport conveyor (5)
As shown in FIG. 6, 3) is provided with a feeding device (15) in which a pair of arms (15a) are fixed to an endless rotating body (not shown) such as a chain.
The feeding speed of (15) is set lower than that of the conveyor (5). Then, by the feeding device (15), the upper and lower two
The seedling raising boxes (1) stacked in stages are sent into the vertical transport device (10).

Next, the vertical transfer device (10) will be described in detail. As shown in FIGS. 6 and 7, a pair of upper and lower sprockets (10b).
A large number of support pieces (10a) are attached to an endless rotating body (10c) such as a chain wound around the endless rotating body (10c).
c) is arranged on the left and right of the transport roller (23). As a result, the seedling raising box (1) sent in is stopped by a stopper (not shown) in the vertical transport device (10), is supported by the support piece (10a) and is sent upward. The upward feeding stroke of the seedlings corresponds to two places in the nursery box (1).

Then, when the seedling raising box (1) reaches the upper end of the vertical transport device (10), this seedling raising box (1) is transferred by the transfer device (16) to the budding cart.
It is transferred to (17). This transfer device
(16) has a structure in which three sets of arms (16a) are fixed to an endless rotating body (not shown) such as a chain. Also, budding cart
(17) is placed on the elevator (18), seedling raising box (1)
The elevator (18) descends every time the plants are stacked on the budding cart (17).

As described above, when the seedling raising boxes (1) having a predetermined number of stages are stacked on the germination cart (17), the germination cart (17) is carried to the germination chamber (not shown).

[Another embodiment]

Although it is a stacking device (13), it is also possible to move the supporting arm (13a) in and out, and to move the whole stacking device (13) up and down by an elevating device (22) as shown in FIG. . In this structure, when the even-numbered seedling raising box (1a) is sent to a predetermined position, the downward stacking device (13) swings upward as shown in FIG. 8 to the state shown in FIG. While being driven, it is lifted and driven by the lifting device (22). Then, when the odd number nursery box (1b) is sent to a predetermined position, the stacking device (13) swings downward, and the even number nursery box (1a) is an odd number nursery box. It is stacked on top of (1b).

Moreover, you may comprise as follows. That is, when the even-numbered nursery box (1a) is lifted upward, the spring is located on the rear side of this nursery box (1a), and this nursery box (1a) seems to be stopped by the detent mechanism. To Then, when the odd-numbered nursery box (1b) comes to the bottom so that the nursery box (1b) contacts the spring, the upper nursery box (1a) is stopped by the detent mechanism. The spring is the seedling box below
It is compressed by (1b). And when the force of this spring becomes larger than the detent mechanism, the upper nursery box (1
The detent mechanism is disengaged from a), and the upper seedling raising box (1a) is pushed forward by the force of the spring and falls, and is stacked on the lower seedling raising box (1b). Then, when this operation is completed, the spring returns to the original position.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

Drawing shows an embodiment of an automatic seeding plant according to the present invention,
FIG. 1 is a plan view of the vicinity of the stacking device on the transfer conveyor, FIG. 2 is a perspective view of the vicinity of the stacking device on the transfer conveyor, and FIG. 3 is a front view showing a state in which an even-numbered nursery box has come to the position of the stacking device. Fig. 4 is a front view showing a state in which even-numbered seedling raising boxes are lifted up by the stacking device from the state shown in Fig. 3, and Fig. 5 is an odd-numbered raising seedlings from the state shown in Fig. 4. A front view showing a state where even-numbered seedling raising boxes are stacked on the box, FIG. 6 is a side view of the entire automatic seeding plant, FIG. 7 is a front view of a vertical transport device, and FIG.
FIG. 9 is a front view showing a state where the even-numbered seedling-growing box has come to the position of the stacking device in another embodiment, and FIG. 9 shows the even-numbered seedling-raising box lifted upward by the stacking device from the state shown in FIG. FIG. 10 is a front view showing a state in which the even numbered seedling raising boxes are stacked on the odd numbered seedling raising boxes from the state shown in FIG. (1) …… Raising seedling box, (10) …… Upper and lower transfer device, (11) …… Sowing device, (13) …… Stacking device, (16) …… Transfer device, (17) …… Sprouting table.

Claims (1)

[Claims] 1. A seeding device (11) for dropping soil and seeds into a nursery box (1) being conveyed, and a nursery box (1) sent out from this seeding device (11) in a vertical direction. An upper and lower carrier device (10) that supports a plurality of stages and sends the upper or lower part, and a seedling box (1) at the upper end or the lower end of the upper and lower carrier device (10) is a germination table (17).
An automatic seeding plant comprising a transfer device (16) to be stacked in a stack, comprising the seeding device (11) and a vertical transfer device (1).
(0) in the transport path between the raising and raising the nursery box (1) on this transport path upward and the next nursery box (1) is sent to the bottom and raised the nursery box (1 ) The lower seedling box (1)
An automatic seeding plant configured to provide a stacking device (13) for stacking, and to feed the stacked seedling raising boxes (1) into the upper and lower transfer devices (10).