JPH0514524B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is directed to preventing leaf entanglement in the seedling feeding device of a transplanter used to transplant soiled seedlings grown using various seedling raising devices to the main field. Regarding the mechanism.

[Conventional technology and issues]

Towed by a tractor or the like, an opener and a planting rotating body are installed between the front grounding wheel and the rear pressing wheel, and the planting rotating body releases the pinched and transferred seedlings into the groove dug and formed by the opener. In a seedling transplanter that is compressed by a rear compression wheel, the seedling feeding device that supplies seedlings to the planting rotary body is used to feed the seedlings, which are arranged in close rows to the seedling feeding mechanism, at a constant rate with respect to the planting rotary body. Ideally, the seeds should be fed at intervals of 100 to 100 cm, and should be fed so that the desired planting distance can be accurately obtained.

For example, as shown in Fig. 15, a large number of soiled seedlings P are connected at the upper part of their roots, and small inverted concave notches 3 are formed at required intervals on the lower part, and then each seedling P is soiled. Continuous seedlings e, which are easily separated into P, are raised all at once in multiple stages using the seedling raising device A shown in FIG. The above-mentioned continuous seedlings e in the middle are transferred to the seedling conveyor conveyor described later one by one and conveyed.
Seedlings are divided into soil-attached seedlings P for each plant and transferred to the above-mentioned seedling supply device, and the divided soil-attached seedlings P are
When feeding the seedlings to the planting rotor at predetermined intervals, at least when transferring the seedlings from the seedling feeding mechanism to the seedling transport conveyor, the continuous seedlings being transferred are
and the previous continuous seedling e that is still in the seedling feeding mechanism, or between the soiled seedlings P of the continuous seedling e that are being transported on the seedling transport conveyor and have not yet been separated. If the leaves become entangled, it becomes impossible to accurately supply the leaves to the planting rotor at predetermined intervals, and therefore, there is a problem in that the desired spacing between plants cannot be obtained.

The purpose of the present invention is to prevent such leaf entanglement,
The purpose is to properly carry out the above-mentioned transfer and conveyance, to ensure that the seedlings are properly supplied to the planting rotating body, and to ensure that the distance between the planted plants of each seedling is accurately set.

[Means to solve the problem]

The configuration of the present invention adopted to achieve the above object is as follows.

D is a seedling transport conveyor that transports continuous seedlings e made of a plurality of soiled seedlings P arranged in close rows; E is a seedling conveyor that receives and transfers a seedling raising device A that holds the continuous seedlings e in multiple stages; Seedling feeding mechanism F that intermittently transfers each successive seedling e to the seedling transport conveyor D,
A seedling spacing correction feeding mechanism 12 receives the continuous seedlings e conveyed by the seedling conveyor D in a state where each seedling is separated into soil-attached seedlings P, and feeds the seedlings to the planting rotary body B; Between the time when the container A is transferred by the seedling feeding mechanism E and the continuous seedlings e are transferred onto the seedling transport conveyor D, a plurality of seedling leaf separation plates are used to loosen the entangled leaves of the soiled seedlings P that make up the continuous seedlings e. The leaf entanglement prevention mechanism in the seedling feeding device of the transplanter of the present invention is formed by organically combining these seedling transport conveyor D, seedling feeding mechanism E, seedling spacing correction feeding mechanism F, seedling leaf separating plate 12, etc. It is something.

In the above, a plurality of partition plates 14 are arranged in a row on the seedling transport conveyor D, and the seedlings are still in the seedling raising device A without being transferred onto the seedling transport conveyor D and are held on the side of the seedling feeding mechanism E. By biasing the seedling leaf support frame G that supports the leaves of the next successive seedling e above the partition plate 14 without engaging them, the intended purpose can be achieved more effectively. It is something.

[Effect]

By the seedling feeding mechanism E, the continuous seedlings e in each tier that are being transported in the seedling raising box a are disentangled by the leaves of each soiled seedling P by the seedling leaf separating plate 12, Further, the leaves of the next consecutive seedlings e, which have not been transferred onto the seedling transport conveyor D and are still in the seedling nursery A and are held on the side of the seedling feeding mechanism E, are separated by a partition plate by the seedling leaf support frame G. It is supported above 14 without engaging it. Therefore, the transfer and conveyance described above can be carried out properly, the seedlings can be normally supplied to the planting rotating body, and the spacing between the seedlings to be planted can be accurately set as set.

〔Example〕

In the following, seedlings of the present invention are raised in a seedling raising device A shown in Fig. 14 A and B, and as shown in Fig. 15 A and B, each continuous seedling e is treated as a soiled seedling P, and this is supplied. An embodiment of a device for preventing entanglement of seedlings in a seedling transplanter that performs seedling transplantation will be described in detail.

The structure of the seedling raising device A is as follows.

a is a flexible main plate made of synthetic resin that is vertically rectangular in plan;
The long groove-shaped seedling chamber b running in the width direction is integrally molded in multiple stages in the vertical direction.

This long groove-shaped seedling room b has a large number of pot-shaped spaces 1 (18 in the figure) each having a circular plane and having a volume necessary for raising one seedling P of vegetables or the like.
It has a continuous shape at its upper side. In other words, each long groove-shaped seedling chamber b has a partition wall 2 at its bottom.
are erected at the required intervals, leaving only the upper part as a series of empty spaces.

c is a cross-shaped cut formed on the bottom of each pot-shaped cavity 1 for inserting the seedling extrusion rod described later, d is an engagement hole arranged along the left and right long side edges of the main plate a, and a long groove-shaped seedling chamber b are provided corresponding to both ends of the .

To raise seedlings using this seedling raising device A, fill the long groove-shaped seedling chamber b with suitable bed soil to a point slightly above the top of the partition wall 2, sow the seeds there, and then cover with the same bed soil, as is the case with conventional methods. By this, the roots extend to the bottom of each pot-shaped space 1 partitioned by a partition wall 2, and the desired seedlings P grow with soil.

To push out the soiled seedlings P for transplantation, a seedling push rod (described later) is pushed all at once into each pot-shaped cavity 1 of the long groove-shaped seedling chamber b through the cross-shaped cut c at the bottom thereof. As a result, continuous seedlings e (the first
Figure 5 A) can be extruded and separated into individual plants to obtain independent seedlings P with soil. (Figure 15b).

The seedling raising device A with the above configuration is mounted, and the seedlings P are attached to the soil.
The configuration of the seedling supply device that supplies the seedlings to the planting rotary body B so that the seedlings can be planted accurately at regular intervals is as follows:
It is as follows.

As shown in Fig. 1, in C, an opener and a planting rotor B are installed between a front grounding wheel RO and a rear suppression wheel C, which are pivoted on a machine platform A pulled by a tractor, etc. In the groove that was excavated by D,
A machine frame body E is installed on a seedling transplanter (only the main parts are shown) of a type in which the planting rotary body B releases the soiled seedlings P which are held and transferred, and the rear pressure wheel C suppresses them (only the main parts are shown). Seedling feeding mechanism F receives and transfers the continuous seedlings e accommodated therein to the seedling conveyor D, and the seedling feeding mechanism F separates the continuous seedlings e conveyed by the seedling conveyor D into individual seedlings P with soil. A seedling spacing correction mechanism receives the soiled seedlings P and supplies them to the planting rotary body B while correcting the required spacing that will ultimately result in the desired spacing between the planted plants. The seedling conveyor D and the seedling spacing correction feeding mechanism F are connected to each other so as to be driven in a predetermined relationship, and are mounted on the machine frame C.

The seedling feeding mechanism E includes horizontal U-shaped left and right guides 4,
4, the left and right long side edges of the main plate a of the seedling raising device A are inserted, and the engagement holes d on the left and right long side edges are engaged with the sprockets 5, 5 and latches 6, 6, which are pivotally supported in the front, back, left and right directions. By aligning them together, the seedling raising device A received from the entrance 7 can be moved horizontally along the left and right guides 4, 4.
It is configured to be intermittently transferred while being curved into a letter shape and sent out from the outlet 8.

This seedling feeding mechanism E also moves seedling pushing rods 9 of the same number (18 in this embodiment) as the number of rows of pot-shaped spaces 1 forming the long groove-shaped seedling chamber b of the seedling raising device A at predetermined intervals. That is, each pot-shaped space 1 is provided with seedling extrusion bodies 10 arranged in parallel at opposite intervals so as to be movable forward and backward by left and right crank mechanisms 11, 11, and the seedling extruder A is horizontally moved as described above. At a predetermined time point, the seedling pushing body 10 advances to a position where it curves into a U-shape, so that each seedling pushing rod 9 cuts a cross-shaped cut in the bottom of each pot-shaped cavity 1 of the opposing long groove-shaped seedling chamber b. The continuous seedlings e in the row are pushed out from the seedling raising device A onto the seedling conveyor D (FIGS. 8 to 10).

Furthermore, the seedling feed-out mechanism E has a plurality of seedling leaf separation plates 12 placed above the upper opening through which the seedling raising device A passes by an arch-shaped support frame 13 at a required interval, that is, each pot of the long groove-shaped seedling chamber b. It is supported upright at the same spacing as the space 1.

Seedlings grown in the seedling raising device A often have their leaves intertwined with each other, especially between those located adjacent to each other on the left and right in the same row, but the seedling leaf separating plate 12
The seedling nursery A is transferred along the left and right guides 4, 4,
This is to untangle the leaves of the continuous seedlings e before they are pushed onto the seedling transport conveyor D. This allows the seedlings to be processed in the subsequent process, that is, to the soiled seedlings P, which are unit plants of the continuous seedlings e. Ensure that there is no problem in separating the parts and transferring them at required intervals.

The seedling transport conveyor D is horizontally mounted on the front side of the seedling delivery mechanism E, and a large number of partition plates 14 are arranged in a row at the same intervals as the seedling leaf separation plates 12 in the center thereof.

G is a seedling support frame attached to the seedling conveyor D, and left and right side plates 17, 17 have two support rods 15, 15 parallel to the running direction of the seedling conveyor D attached to the left and right ends of the horizontal shaft 16. erected between both ends of the
By the rotation of the horizontal frame shaft 16, the support rods 15, 15
can pass in a circular orbit near the outside of the seedling transport conveyor D including the partition plate 14, but normally one support rod 15 is connected to the seedling separation plate 12. The other supporting rod 15 is parked near the apex of the circular orbit between the opposing partition plate 14 and near the bottom of the circular orbit (FIGS. 2 and 4).

At the support rod 15 near the apex of the circular orbit, the seedling leaves of the next stage of continuous seedlings e, which are in the seedling raising device A and are held on the side of the seedling feeding mechanism E, have not been fed out onto the seedling conveyor D yet. , serves to support the seedlings above the partition plate 14 so as not to engage with the partition plate 14 of the seedling transport conveyor D.

However, the support rod 15 is linked to the back and forth movement of the seedling pushing body 10, that is, the seedling pushing rod 9 is
As the push-out operation of the continuous seedlings e in the relevant stage is started, it rotates clockwise in the drawing to allow the supported seedling leaves to enter between the partition plates 14, and the continuous seedlings e in the relevant stage are pushed out. When the seedlings have finished being fed out onto the conveyor D, the other support rod 15 reaches near the top of the circular orbit and supports the seedlings of the next stage of continuous seedlings e above the partition plate 14 in the same way as above. .

A proximity switch 30 is provided in the vicinity where the bracket provided on one side plate 17 of the seedling support frame G passes, and when the support rod 15, which was near the apex of the circular orbit above, reaches the vicinity of the bottom point. That is, when the seedling support frame G rotates half a rotation, it is sensed by the proximity switch 30, and the signal is used to activate the electromagnetic clutch 2 described later.
Turn 5 off.

The seedling spacing correction feeding mechanism F includes an upper supply conveyor f, a middle supply conveyor g, a lower supply conveyor h,
and a drive device that controls and drives these as appropriate.

The upper stage supply conveyor f transfers and feeds the soiled seedlings P transported by the seedling transport conveyor D to the middle stage supply conveyor g. 18', and wide and narrow short clamping belts 19, 19', which are also installed in parallel at a required interval. be positioned opposite to each other in front of the
The short clamping belts 19, 19' have their upper ends positioned opposite to the conveyance terminal end of the seedling conveyor D.

The middle supply conveyor g is for feeding the soiled seedlings P transferred and fed by the upper supply conveyor f to the lower supply conveyor h, and uses wide and narrow clamping belts installed in parallel at a required interval. 20, 20', 21,
21'.

The lower supply conveyor h is for supplying the above-mentioned soiled seedlings P to the planting rotary body B, and has a pair of wide belts 2.
It consists of 2,22'.

As described above, the continuous seedlings e are pushed out from the seedling feeding mechanism E onto the seedling conveyor D and are conveyed.
The roots of the seedlings are once squeezed between the upper surface of the conveyance end of the seedling conveyor D by the seedling pressing roller 23, and the soil is sequentially removed while being transferred along the curved surface of the conveyance end. Each plant is separated as a seedling P, and the root side of the seedling leaves is held between the narrow holding belts 18' and 19' of the upper supply conveyor f, and the leaf tip side is held between the wide holding belts 18 and 19, respectively. and is transferred and fed toward the middle supply conveyor g with the base protruding rearward.

Therefore, soiled seedlings P that cannot be held by the upper supply conveyor f as described above, that is, soiled seedlings P that do not have seedling leaves or have extremely poor growth even if they have seedlings, fall off and are not transferred and fed. This results in uneven seedling feeding intervals.

Such unevenness in the seedling feeding interval occurs due to various reasons such as the running timing of various conveyors and slippage of the grounding wheels, but in this device, the seedling feeding interval by the lower supply conveyor h is made equal between the planted plants. The planting rotating body B that receives the soiled seedlings P whose spacing has been corrected is capable of planting the soiled seedlings P at a predetermined spacing.

The operation of the above configuration is as follows.

The hydraulic motor 24 is constantly rotating, and its rotation is transmitted to the drive shaft 26 via an electromagnetic clutch 25, gears, chains, etc., and rotates it.

The rotation of the drive shaft 26 causes the intermittent feed drum 28 to rotate at a set pitch (36 degrees) by the engagement piece 27, and also rotates the horizontal shaft 29 by 18 degrees through gears, chains, etc.

Accordingly, the sprockets 5, 5 fixed to the horizontal shaft 29 and the ratchets 6,
6 is also rotated 18 degrees in the same way, and the seedling raising device A is transferred by one step between the rows of the long groove seedling chambers b, and the long groove seedling chamber b of the concerned stage is moved to a position opposite to the seedling push rod 9. .

The rotation of the drive shaft 26 also rotates the horizontal shaft 16 by 180 degrees through gears and chains, and also rotates the seedling support frame G by 180 degrees. By this,
The supporting rod 15 near the apex of the circular orbit is replaced with the supporting rod 15 near the bottom point, and the seedlings of the continuous seedlings e in the relevant stage are inserted between the partition plates 14, and the continuous seedlings in the next stage are inserted between the partition plates 14. Seedling leaves of seedling e are separated by partition plate 14
be supported in a position that does not engage with the
As mentioned above.

The rotation of the drive shaft 26 further moves the seedling extrusion body 10 forward and backward via the gears, chains, and crank mechanisms 11, 11, so that,
Each seedling extrusion rod 9 enters and takes out each pot-shaped space 1 of the opposing long groove-shaped seedling chamber b, and the continuous seedlings e in the relevant stage are transferred from the seedling raising device A onto the seedling conveyor D, as described above. That's right.

Proximity switch 3 provided in the vicinity through which the bracket provided on one side plate 17 of the seedling support frame G passes.
0 senses when the support rod 15, which was near the apex of the circular orbit, reaches the bottom point of the circular orbit as described above, that is, when the seedling support frame G has made a half turn, and uses that signal to activate the electromagnetic clutch. Turn 25 off.

As a result, the above-mentioned operations are completed, and after that, the electromagnetic clutch 25 is turned on when the seedling conveyor D stops as described later, and the same operation is repeated again.

The seedling transport conveyor D and the upper and middle supply conveyors f and g of the seedling spacing correction feeding mechanism F are rotated by a motor 31. That is, when the seedling transport conveyor D has finished loading the continuous seedlings e from the seedling feeding mechanism E in the above manner, it rotates together with the upper supply conveyor f to transport the continuous seedlings e and separate them into soil for each plant. The seedlings P are held and transferred to the upper supply conveyor f.

In the above, the rotational speed of the upper stage supply conveyor f is set to twice the rotational speed of the seedling transport conveyor D. Even with this, the distance between the land seedlings P on the upper stage supply conveyor f is wider than that on the seedling transport conveyor D.

From the time when the first seedling P with soil is transferred from the upper supply conveyor f to the middle supply conveyor g, and the first seedling P with soil is detected by the seedling sensors 32, 32 set oppositely on the lower part of the middle supply conveyor g. , the microcomputer starts counting the number of pulses of the rotary encoder 33 (described later), and the next ranked seedling P is counted by the seedling sensor 3 at a set number of pulses, for example 10 pulses.
2 and 32 are detected, the successive soiled seedlings P are repeatedly fed to the lower supply conveyor h.

However, when the seedling sensors 32, 32 detect the next-ranked seedling P with soil at a set pulse number of less than 10, the required electromagnetic clutches are disconnected, and the seedling conveyor D, the upper supply conveyor f, and the middle supply conveyor g stop. Thereafter, when the rotary encoder 33 counts a set number of pulses, for example 10, they rotate again and perform a predetermined job.

To count the number of pulses, the rotary encoder 33 attached to the planting rotary body B, which rotates in conjunction with the rear suppression wheel C, counts the rotation angle of the planting rotary body B, and the value is sent to the microcomputer. This is done by typing.

When the seedling conveyor D rotates a distance corresponding to the number of soiled seedlings P on the relevant stage (18 in this example), the proximity switch 34 causes the seedling conveyor D to rotate.
A detection metal fitting 35 attached to the seedling feeder is sensed, a required electromagnetic clutch is disconnected, the seedling transport conveyor D is stopped, and its partition plate 14 is aligned with the seedling leaf separation plate 12 of the seedling feeding mechanism E.

Regardless of the stoppage of the seedling transport conveyor D, the middle supply conveyor g and the lower supply conveyor h continue to sequentially supply the seedlings P with soil to the planting rotary body B.

In other words, the leading seedling P with soil held between the middle supply conveyor g waits until the distance between it and the rear seedling P with soil held between the lower supply conveyors h reaches a predetermined distance between the planted plants. When the seedlings P are placed between the planted plants, the seedlings P with soil on the middle supply conveyor g are transferred to the lower supply conveyor h, and this process is repeated as described above.

While the middle supply conveyor g is stopped, from the seedling transport conveyor D and the upper supply conveyor f,
There is no need to supply soiled seedlings P to the middle supply conveyor g.

In addition, since the middle supply conveyor g moves at three times the speed of the lower supply conveyor h, the number of planted seedlings P held by the middle supply conveyor g is small until the designated planting time is reached. Also good.

Therefore, even if the seedling transport conveyor D is stopped, the seedlings P with soil can be smoothly supplied to the planting rotary body B. In addition, the stop period of the seedling conveyor D is within the range in which correction between planted plants can be made as described above.

〔Effect of the invention〕

As is clear from the above, according to the present invention, each of the soiled seedlings constituting the continuous seedlings is Since it is equipped with multiple seedling leaf separation plates to loosen the entanglement of leaves, the seedling feeding mechanism allows continuous seedlings in each tier to be transported while being held in the seedling nursery box by the seedling leaf separation plates. The leaves of each soiled seedling are untangled, and the seedling transport conveyor is equipped with partition plates that separate the leaves of each soiled seedling. The leaves of the next consecutive seedlings, which are not yet transferred onto the seedling transport conveyor but are still in the seedling nursery and are held on the side of the seedling feeding mechanism, are engaged with the partition plate by the seedling leaf support frame. It is supported above it.

Therefore, the above-mentioned transfer and transportation should be carried out appropriately,
It is possible to normalize the supply of seedlings to the planting rotating body, and ultimately to ensure that the distance between each seedling to be planted is accurate as set.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a simplified side view showing a seedling feeding device equipped with the mechanism of the present invention mounted on a machine platform towed by a tractor or the like, and FIG. A side view of the same as the above, Fig. 3 is a rear view of the main parts of the same, Fig. 4 is a side view of the main parts of the same, and Fig. 5 is a side view of the main parts of the same.
The figure is a longitudinal side view of the seedling feeding mechanism, Figure 6 is a plan view of the seedling leaf separation group of the same seedling feeding mechanism, Figure 7 is a rear view of the main parts of the same as above, and Figures 8, 9 and 10 are seedling feeding mechanism. Partial side views and plan views sequentially showing the situation in which successive seedlings are pushed out from the mechanism onto the seedling conveyor;
Figures 11, 12 and 13 are partial side views showing the situation in which continuous seedlings are transferred from the seedling conveyor to the seedling spacing correction feeding mechanism, and Figure 14A is the seedling growing used in the above embodiment of the present invention. Top view of the vessel,
Figure 15 (B) is a sectional view taken along the - line in Figure 15 (A), Figure 15 (A) is a partially omitted front view of continuous seedlings taken out from the above-mentioned seedling nursery, and Figure 15 (B) is a partially omitted front view of the continuous seedlings shown separated from the above-mentioned continuous seedlings.
It is a perspective view of a seedling with soil. D... Seedling transport conveyor, P... Seedlings with soil, e...
Continuous seedling, E... Seedling feeding mechanism, A... Seedling raising device, F
...Seedling spacing correction feeding mechanism, B...Planting rotor,
12... Seedling leaf separation plate, 14... Partition plate, G... Seedling leaf support frame.

Claims (1)

[Scope of Claims] 1. A seedling transport conveyor that transports continuous seedlings made of a plurality of soiled seedlings arranged in close rows, and a seedling raising device that raises and incubates the continuous seedlings in multiple stages, and receives and transports the continuous seedlings. A seedling feeding mechanism that transfers each stage intermittently to the seedling transport conveyor, and a seedling feeding mechanism that receives the continuous seedlings transported by the seedling transport conveyor in a separated state into individual seedlings with soil, and transfers the seedlings to the planting rotary body. A seedling feeding device for a transplanter comprising a feeding mechanism for correcting seedling spacing between the seedlings, wherein the seedling raising device is transferred by the seedling feeding mechanism until the continuous seedlings are transferred onto the seedling conveyor.
A leaf entanglement prevention mechanism in a seedling supply device of a transplanter, characterized in that a plurality of seedling leaf separating plates are provided to loosen the entangled leaves of each soiled seedling constituting the continuous seedlings. 2 The seedling transport conveyor has a plurality of partition plates arranged in a row, and the next stage of continuous seedlings is held in the seedling raising device without being transferred onto the seedling transport conveyor and is held on the side of the seedling feeding mechanism. The leaf entanglement prevention mechanism in the seedling feeding device of a transplanter according to claim 1, further comprising a seedling leaf support frame for supporting the leaves above the partition plate without engaging with the partition plate.