JP3220947B2 - Seedling supply method and device in transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a group of seedlings in which a large number of paper tube seedlings are arranged in a beehive or the like and adjacent ones of the seedlings are releasably attached to each other to form a row of seedlings. Dividing, further separating it into separate paper tube seedlings, improving the method and apparatus for supplying seedlings in a transplanter that supplies the separated paper tube seedlings to a planter at predetermined planting intervals and transplants them to a field About.

[0002]

2. Description of the Related Art Conventionally, an operation for dividing the above seedling group into row seedlings,
The operation of separating the row seedlings into the individual paper tube seedlings and the operation of supplying the same to the planter are performed, for example, as follows. First, using a required seedling divider, one row is divided by hand from the above seedling group to obtain row seedlings.
No. 10746).

[0003] Usually, 23 to 35 paper tube seedlings are bound in a row, and they are manually loaded on a seedling receiving conveyer, and at the sending end side, the leading paper tube seedling of the line seedling is removed. The seedling is separated from the succeeding paper tube seedling by a separating member such as a separating wheel or a separating belt. The separated paper tube seedlings are sandwiched between a pair of conveyor belts and supplied directly to the planter or indirectly through a sorting and aligning mechanism, and planted in a field (Japanese Patent Publication No. Sho 61).
-27002, JP-B-3-7322).

[0004]

In the above, the driving of the seedling receiving conveyor, the separating member, the conveyor belt, the sorting mechanism, the inoculating device, and the like are all performed in conjunction with the traveling of the transplanting machine itself. Increasing the running speed also increases the speed of a series of work or planting, which is a reason that the transplantation efficiency can be improved.

[0005] However, the initial operation of loading row seedlings on the seedling receiving conveyer has a limited capacity per unit time because it is performed manually by workers on the transplanting machine, that is, manually. It takes 3 to load a row of 35 paper tube seedlings on the seedling receiving conveyor once.
It takes 4 seconds). Therefore, the transplanting operation of the transplanter must be performed within the required range by itself in relation to the ability to mount the seedlings manually, and the transplantation efficiency is improved by simply increasing the traveling speed of the transplanter. It is not possible.

SUMMARY OF THE INVENTION It is an object of the present invention to increase the running speed of a transplanter and improve the transplantation efficiency, while carrying out the work of placing row seedlings on a seedling receiving conveyor manually as in the conventional case. is there.

[0007]

According to the seedling supply method of the present invention, in short, a large number of paper tube seedlings are stuck to each other in a continuous manner.
The row seedlings a and a 'which are superimposed on the row are conveyed in a horizontal state in which the row seedlings a and a' are separated into two paper tube seedlings P of the row seedlings a and a '. And supplying the separated paper tube seedlings P to the planter B. In short, the seedling supply device according to the present invention provides row seedlings a and a ′ in which a large number of paper tube seedlings are stuck and connected to each other and overlap in two rows.
Seedling separating members such as a separating wheel 12 and a separating belt 16 are installed at two places in a conveying path from a seedling receiving conveyer 10 for receiving and transporting the seedlings in a horizontal state of two upper and lower stages to a planting device B. The contents are as follows.

[0008]

An operator splits two rows of seedlings at a time from the seedling group in a superposed state, and lays them in a horizontal state of two upper and lower rows and puts them on a seedling receiving conveyer. Is to be separated into each paper tube seedling, supplied to the planter B, and transplanted to the field, and the working time for loading on the seedling receiving conveyor is reduced when the conventional one-row seedling is handled. Since the same number of paper tube seedlings can be loaded twice as many as that described above, the traveling speed of the transplanter can be at least doubled, and the transplantation efficiency can be improved.

[0009]

1 is a side view of a transplanter equipped with a seedling supply device of the present invention, wherein 1 is a main frame of the transplanter, 2, 2 '.
Is an upper and lower auxiliary frame for connecting to a tractor (not shown), 3 is a driving wheel, 4 is a rolling corta for cutting off foreign substances, 5 is an opener for forming a ridge, 6 is a crusher for ridge seedlings. Reference numeral 7 denotes a seat for workers, 8 denotes a seedling stand on which seedlings are placed, A denotes a seedling supply device, and B denotes a planter.

In this transplanting machine, the seedling supply device A and the planter B are driven by the power of the driving wheel 3 as the tractor is pulled by the tractor and travels in the direction of the arrow 9, and the worker manually operates the seedling stand 8 from the seedling stand 8. The reprinted row seedlings are separated into separate paper tube seedlings by the seedling supply device A and distributed to the right and left, and the paper tube seedlings are supplied to the planting device B, which is discharged into the groove formed by the opener 5. , A series of transplanting operations to be completed by crushing by the crushing wheel 6.

[0011] The seedling supply unit A is constructed with a receiving device A ₁ and the sorting alignment device A ₂ and sorting device A _3. In the receiving device A _1, 10 in the seedling receiving conveyor, the receiving end 10 'causes the opposed position to the seedling stage 8,
A presser ring 11 is mounted above the sending end 10 ″, and
The seedling receiving conveyor 10 is located in front of the sending end 10 ″.
In addition, a separation wheel 12 which is a seedling separation member set at a higher peripheral speed than the holding wheel 11 is mounted on the shaft.

The worker in the seat 7 uses a seedling divider (not shown) for the two-row superimposition, which is separately prepared, from the seedling group (not shown) on the seedling stand 8, and the like. Row seedlings a and a 'composed of ~ 35 paper tube seedlings P are divided at a time in a state where two rows are superimposed, and the two rows are placed in a horizontal state in which the two rows are vertically arranged. It is mounted on the end side 10 '. The upper and lower two rows of seedlings a and a 'are sent forward from between the sending end side 10 "and the presser ring 11, and the top of the upper row of seedlings a and the lower row of seedlings P. The leading paper tube seedling P of a ′ is alternately joined to the separation wheel 12 to be separated from the succeeding paper tube seedlings P alternately, and the sending end side 10 ″.
And the separation wheel 12.

In the above description, it is apparent that the separation wheel 12 can be replaced by an endless belt set at a higher peripheral speed than the seedling receiving conveyor 10 and the presser wheel 11.

Reference numeral 13 denotes a transfer conveyor for receiving and transferring the paper tube seedlings P sent from the seedling receiving conveyer 10. A gate roller 14 is shafted above the receiving end 13 'and a transfer end 13 ". A presser ring 15 is mounted above the transfer conveyor 13, and further forward of the transfer end 13 ″.
In addition, the top of a separation belt 16, which is a seedling separation member vertically set at a peripheral speed higher than that of the presser ring 15, is opposed to the separation belt 16, and a holding belt 17 is vertically provided so as to face the separation belt 16.

FIG. 5 shows the situation in which the top paper tube seedlings P of the upper and lower two rows of row seedlings a and a 'placed on the seedling receiving conveyor 10 by the worker are alternately separated and sent as described above. ~ 1
This is apparent from the value shown in FIG. That is, in FIG. 5, the leading paper tube seedling P of the lower row of seedlings a ′ is separated from the succeeding seedlings, but is still located between the sending end 10 ″ and the separation wheel 12 and is now dropped toward the transfer conveyor 13. This shows a state in which the top of the row of seedlings a in the upper row is pressed against the separation wheel 12 and is about to start receiving the separating action.

FIG. 7 shows the state of FIG.
8 shows a state in which the leading paper tube seedling P is separated from the succeeding one, and is about to fall toward the transfer conveyor 13 after passing in front of the lower row of seedlings a ′. FIG. The transfer conveyer 13 receives the paper tube seedlings P of FIG.
2 shows a state in which the leading paper tube seedling P is pressed against the separation wheel 12 and is beginning to undergo a separating action.

FIG. 10 shows that, through the state of FIG. 9, the paper tube seedlings P of the lower row of seedlings a 'are sent out to the transfer conveyor 13 and the top of the upper row of seedlings a of the row of seedlings a is again separated from the separation wheel 12 Shows a state in which it is pressed against and starts receiving a separating action.

From the seedling receiving conveyor 10 to the transfer conveyor 13
When the transfer is smoothly performed as described above, each of the paper tube seedlings P on the transfer conveyor 13 is arranged at a wide interval and a narrow interval at one stage and every other as shown in FIGS. Obviously. However, wide and narrow of the gap is eliminated by aligning action in sorting alignment device A ₂ will be described later, eventually will be all of the paper tube seedlings P are closely aligned.

The above-mentioned separation may not be carried out smoothly in the paper tube seedlings P which are superimposed on the upper and lower two layers and which can be peeled off, but are adhered to each other due to a water-containing state, a root-entangled state or other reasons. However, for example, in the case where the top tube seedlings P, P of the two rows of upper and lower row seedlings a, a 'are sent out from the seedling receiving conveyer 10 to the transfer conveyor 13 while being vertically connected and connected, the superposed and connected state is established. The paper tube seedlings P, P are conveyed while being turned over by the gate roller 14 on the receiving end side 13 ′ of the transfer conveyor 13, and the front paper tube seedling P is moved between the sending end side 13 ″ and the press ring 15. From the paper tube seedlings P on the rear side by contacting the separation belt 16.

That is, each of the paper tube seedlings P of the upper and lower two rows of row seedlings a and a 'placed on the seedling receiving conveyor 10 is separated in principle by the separation wheel 12, and if not separated by this, at least the separation is performed. After being separated by the belt 16, the sheet is then pinched and fed by the separation belt 16 and the pinch belt 17 to the sorting / arranging apparatus A ₂ described later. This is where the present invention is most important.

[0021] In selecting alignment device A _2, 18 is a paper cylinder lower half portion supporting belt for supporting the lower half of the paper tube P ₁ of the paper tube seedlings P, 19 supports a leaf P ₂ of the paper tube seedlings P The leaf support belts have substantially the same length, and are stretched in parallel in the length direction of the paper tube seedlings P at required intervals.

[0022] 20 and 21 in the paper tube on half support belt for supporting the upper half of the paper tube P _1, these two support belts 20, 2
1 is a lower half support belt 18 and a leaf support belt 19 of the paper cylinder.
And both support belts 1
Separated between the receiving end side and the sending end side of the 8, 19 paper tube seedlings P,
That is, it is stretched with the fall cavities 22 opened between them. Reference numeral 23 denotes a leaf pinching belt which is superimposed and stretched on the upper surface of the leaf part supporting belt 19 except for the receiving end side of the paper tube seedlings P.

The paper tube seedlings P nipped and conveyed by the separation belt 16 and the nipping belt 17 of the receiving device A _{1 form} a lower half support belt 18, a upper half support belt 20, and a leaf support belt 19 of the lower half of the cylinder. When starts to be conveyed by fall, immediately becomes a state where the leaf portion P ₂ is sandwiched by the leaves clamping belts 23,
It is conveyed toward the sending end side of both support belts 18 and 19 and the upper half support belt 21 of the paper cylinder.

[0024] In this case, so-called bad seedlings or poor growth and no leaf P _2, in order to support neither been made clamped by its leaves have a leaf support belt 19 and the leaf portion sandwiching the belt 23, unbalanced Only the so-called good seedlings, in which the leaves P ₂ have grown sufficiently, are dropped on the falling empty space 22 and discharged out of the system, and are on the delivery end sides of the support belts 18 and 19 and the upper half support belt 21 of the paper cylinder. Are sorted and transported.

Reference numerals 24 and 24 'denote alignment belts, and reference numeral 25 denotes an alignment roller. These are the support belts 18, 19 and 21.
Receive the paper tube seedlings P which are good seedlings sent from the company. Reference numeral 26 denotes a detector installed above the end side of the upper half support belt 21 of the paper cylinder.
Is monitored and detected, and the paper tube seedlings P are always kept in close contact on the alignment belts 24, 24 'and the alignment roller 25.

That is, the conveying speed of the paper tube seedlings P at a stage preceding the upper half support belt 21 of the paper tube is immediately increased when the detector 26 detects the coarseness. As soon as it is detected, a transfer speed changing device such as an electromagnetic clutch attached to a predetermined shaft is operated to make the speed constant.

Alignment belts 24, 24 'and alignment roller 2
5 is assumed to be constant speed running, and assuming that the speed is 1, the speed ratio of the seedling receiving conveyor 10 at the time of constant speed running is 0.26, the speed ratio of the transfer conveyor 13 is 0.56, and the speed ratio of the separation belt 16 and the holding belt 17 is The speed ratio of the lower half support belt 18, the leaf support belt 19, the upper half support belts 20, 21 and the leaf sandwiching belt 23 of the paper cylinder is 1.2. Each speed ratio at the time is set to be 2.5 times.

[0028] Next, in the distribution device A _3, 27,2
8, at the lower left and right delivery front end of the sorting alignment device A _2, upper right and left distribution belts wound tension pulleys disposed in each of the three points, 29 and 30, each lower side of the upper left and right distribution belt 27 The lower left and right distribution belts wound around the pulleys also arranged at three points, and 31 and 32 are left and right vertical belts stretched outside the lower left and right distribution belts 29 and 30, and these respective distribution belts 27. 30 and the vertical belts 31, 32 are set to run at a predetermined speed higher than the alignment belts 24, 24 'and the alignment roller 25.

[0029] From sorting alignment device A _2, and more specifically, the paper tube seedlings P to be delivered at a constant speed because the alignment belts 24, 24 'and and alignment roller 25 pressing wheel 25' and the upper right and left distribution belt 27 , 28 are speeded up by being sandwiched between the vertical transfer paths 33, and therefore are transferred downward while maintaining a required interval (1/2 of a preset planting interval) from each other.

Thereafter, the paper tube seedlings P are transferred to the left and right transfer paths 34 and 35 formed by the upper and lower left and right sorting belts 27 and 29, and 28 and 30, respectively.
9, 30 and the left and right vertical belts 31, 32 are transferred to left and right supply paths 36, 37, respectively, and the planters B,
B and is transplanted to a field at a predetermined planting interval.

In the above, the paper tube seedlings P transferred vertically downward in the vertical transfer path 33 are detected by the seedling detection sensors 38, 38 ', and based on the detected seedlings P, the vertical transfer path 33 and the right and left transfer paths 34, 35 meet. The distribution cam 39 mounted on the shaft is swung right and left, whereby the paper tube seedlings P are alternately distributed to the left and right transfer paths 34 and 35.

[0032] In the above embodiment, the seedling supply device A constituted by the receiving device A ₁ and the sorting alignment device A ₂ and sorting device A _3, was installed planting unit B is opposed to the distribution device A ₃ . However, the planter B is placed opposite the separation belt 16 of the receiving device A ₁ and the delivery end side of the holding belt 17,
Are omitted sorting alignment device A ₂ and sorting device A _3,
Aligning belt planting unit B selected alignment device A ₂ 24,2
4 'and the counter installed on the delivery end side of the alignment roller 25, or may be omitted distribution device A _3.

Further, in the receiving device A _1, to separate the paper tube seedlings P sent out from the seedling receiving conveyor 10 from the subsequent ones, the column seedlings a the two upper and lower stages as described above in Example, a '
It is obvious that, in addition to performing both of the paper tube seedlings P with one separation wheel 12, the separation may be performed with a total of two separation wheels so as to be dedicated to each of the row seedlings a and a '.

[0034]

According to the present invention, the following effects can be obtained as is apparent from the above detailed description. A worker splits two rows of seedlings at a time from the seedling group in a superposed state, and lays them on the seedling receiving conveyer in a horizontal state of two upper and lower rows. Is separated into each paper tube seedling, supplied to the planter, and transplanted to the field, and the work time for loading on the seedling receiving conveyor is made twice as long as the conventional case of handling one row of seedlings. Since the number of paper tube seedlings can be loaded, the traveling speed of the transplanter can be at least doubled, and the transplantation efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a side view of a transplanter equipped with a seedling supply device according to an embodiment of the present invention.

FIG. 2 is a rear view of the same seedling supply device.

FIG. 3 is a partially enlarged rear view of the seedling supply device.

FIG. 4 is a plan view of the seedling supply device according to the first embodiment;

FIG. 5 is a side view of a main part showing a separating operation of the paper tube seedlings by the seedling supply device.

FIG. 6 is a side view of a main part showing the state of separation of the paper tube seedlings in the seedling supply device.

FIG. 7 is a side view of the main part showing the state of separation of the paper tube seedlings in the seedling supply device.

FIG. 8 is a side view of a main part showing a state of separating the paper tube seedlings in the seedling supply device.

FIG. 9 is a side view of the main part showing the state of separation of the paper tube seedlings in the seedling supply device.

FIG. 10 is a side view of the main part showing the state of separating the paper tube seedlings in the seedling supply device.

[Explanation of symbols]

A seedling supply device A ₁ receiving apparatus A ₂ sorting organizer A ₃ distributor B planting unit P paper tube seedlings a upper column seedlings a 'bottom rows seedlings 10 seedlings receiving conveyor 10 for "delivery end side 12 separated wheels 13 transfer conveyor 13 "sending end side 16 separation belt

Claims (5)

(57) [Claims] 1. A plurality of paper tube seedlings are stuck and connected to each other, and row seedlings which are superimposed in two rows are transported in a horizontal state of two upper and lower rows. A method for supplying seedlings in a transplanting machine, wherein the separating operation is performed stepwise twice, and thereafter, each of the separated paper tube seedlings is supplied to a planter. 2. A plurality of paper tube seedlings are stuck and connected to each other, and row seedlings which overlap in two rows are placed on a seedling receiving conveyor in a horizontal state in which the seedlings are vertically arranged in two stages. When forwarded from the sending end side of the first row, the first row of seedlings in the upper row and the first row of seedlings in the lower row,
Alternately, the work to separate from the succeeding paper tube seedlings was performed, and it was loaded on the transfer conveyor and conveyed, and the paper tube seedlings to be conveyed were sent forward from the sending end side of the transfer conveyor. By the way, a method for supplying seedlings in a transplanting machine, wherein the separating operation is performed again, and thereafter, each separated paper tube seedling is supplied to a planter. 3. A transport path from a seedling receiving conveyer, which receives and transports a row of seedlings in which a large number of paper tube seedlings are stuck and connected to each other and overlaps in two rows in two vertical stages, from a seedling receiving conveyer to a planting device. A seedling separating member such as a separating wheel or a separating belt is installed at two locations. 4. A transport path from a seedling receiving conveyor for receiving and transporting a row of seedlings in which a large number of paper cylinder seedlings are stuck and connected to each other and superimposed in two rows in two upper and lower stages from a seedling receiving conveyer to a sorting and organizing apparatus. A seedling supply device for a transplanter, wherein seedling separation members such as a separation wheel and a separation belt are installed at two of the inside. 5. A transport path from a seedling receiving conveyor for receiving and transporting row-row seedlings in which a large number of paper cylinder seedlings are stuck and connected to each other and superimposed in two rows in upper and lower two stages, to a sorting and sorting device. A seedling separation member such as a separation wheel or a separation belt is installed at two of the insides, and a sorting device is installed between the sorting and organizing device and the planter. .