JP2003111504A - Device for correcting transfer position of row seedling of transplanter and method for transferring seedling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To correct row seedlings transferred to a transversely installed conveyor to a prescribed position according to design, nip the tip required length of the respec tive seedlings exactly to the setting with a rotation planting tool and transplant the respective seedlings in a position according to a prescribed planting depth even when a field is formed into a slope. SOLUTION: This device for correcting a transfer position of row seedlings P1 is designed to transfer and transport the row seedlings P1 on a transversely installed conveyor D, receive, nip and transport the respective seedlings P separated from the row seedlings P1 at a required interval with a vertically installed conveyor E on the downstream side of the transversely installed conveyor D, further receive, nip and transport the respective seedlings P on the downstream side of the vertically installed conveyor E with the rotation planting tool F, drop the seedlings into a ridge furrow, simultaneously carry out ridging with compacting wheels J and transplant the seedlings P. In the transplanter, a correcting member (a) is installed in a position opposite to the row seedlings P1 transferred to the transversely installed conveyor D so as to enable free advance and retreat. The transfer position of the row seedlings P1 is corrected to a prescribed position of the transversely installed conveyor D by pushing and moving the row seedlings P1 with the correcting member (a).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter, in particular, a row seedling is transposed and conveyed on a horizontal conveyor, and the vertical conveyor downstream of the horizontal conveyor separates each row seedling from the row seedlings. Is received and sandwiched at a required interval and conveyed, and further, the rotary planter receives and sandwiches and conveys each seedling on the downstream side of the vertical conveyor, and drops the seedlings into the furrows, and at the same time soil the soil by a compression wheel. The present invention relates to a row seedling transfer position correcting device of a transplanting machine for transplanting seedlings and a seedling transplanting method using the same.

[0002]

2. Description of the Related Art For example, as described in Japanese Patent No. 2863989, a large number of transplant seedlings (paper tube seedlings, etc .; hereinafter simply referred to as "seedlings") are arranged in rows and columns (including a honeycomb shape). Row seedlings from the resulting seedling aggregate, separated by a required row seedling separation transposing mechanism and transposed on a horizontal conveyor, the sending end side of the horizontal conveyor, that is, on the downstream side, a pair of vertical conveyors, On the receiving end side, each seedling is separated from the row seedlings and received and sandwiched at a required interval, and further, at the sending end side of the vertical conveyor, that is, on the downstream side, a rotary planter,
Each seedling is clamped at the upper receiving position, dropped into the furrow at the lower open position, and at the same time, the seedlings are soiled by a crushing wheel to keep the seedling in the field at a constant planting depth. A transplanting machine configured to be automatically transplanted is conventionally known.

[0003]

In the above, the row and seedling separating and transposing mechanism is arranged and arranged so as to run along the running direction of the transplanter, and the horizontal conveyor is the running direction of the row and seedling separating and transposing mechanism. Are arranged in a state orthogonal to (the state orthogonal to the running direction of the transplanter).

The transfer of row seedlings to the horizontal conveyor by the row seedling separation transfer mechanism is carried out by the row seedling separation transfer mechanism by separating and holding the row seedlings from the seedling aggregate and operating it above the horizontal conveyor. The seedlings are transposed with the leaf tips slightly protruding to the outside of the edge of the horizontal conveyor.

The transfer position of the row seedlings on the horizontal conveyor, more specifically, the transfer position of the row seedlings in the widthwise conveyor width direction, is a designed predetermined position if the field is flat, and there is no particular problem. Absent.

[0006] However, when the field has a slope (for example, 10 °), seedlings are sown according to the degree of inclination of the transplanter regardless of whether the transplanter travels up or down the slope. The vertical relative position of the row seedling separation transfer mechanism and the horizontal conveyor shifts in the advancing direction of the transplanting machine, that is, front and back, and the row seedling transfer position moves back and forth in the width direction of the horizontal conveyor from the predetermined position.

On the other hand, the relative positions of the horizontal conveyor, the vertical conveyor and the rotary planter are fixed, and the vertical conveyor and the rotary planter remain in the positions (states) transferred to the horizontal conveyor. The seedlings will be received, transported, and transplanted as prescribed.

[0008] In this point, if we lay a little about this point, the rotary planter clamps the required length of the seedling between the pair of flexible discs, depending on the clamping length.
Differences occur in the planting depth of seedlings in the field. That is, if the holding length is long, shallow planting is performed, and if the holding length is short, deep planting is performed. Therefore, the seedling separation seedling transposition mechanism correctly positions the seedlings at the design position of the horizontal conveyor,
It is extremely important for the rotary planter to properly pinch the required length of the tip of each seedling according to the setting in order to transplant the seedlings according to the predetermined planting depth.

The object of the present invention is to constantly, that is, even when the field is on a slope, the row seedlings transferred to the horizontal conveyor are corrected to the predetermined positions as designed, and the rotary planter is used for each seedling. The required length of the tip is properly clamped as set, so that each of the seedlings can be transplanted at a predetermined planting depth.

[0010]

The constitution of the invention of claim 1 is as follows. (1) Transplanting and transporting the row seedlings P1 on the horizontal conveyor D,
On the downstream side of the horizontal conveyor D, the vertical conveyor E receives and sandwiches each seedling P separated from the row seedling P1 at a required interval and conveys it, and further, on the downstream side of the vertical conveyor E, rotary planting. A container F receives and sandwiches each seedling P, conveys it, drops it in a furrow, and at the same time, transplants the seedlings P by soiling with a presser wheel J. (2) Transposed on the horizontal conveyor D The correction member a is installed at a position facing the row seedling P1 so as to be able to move forward and backward, and the transposition position of the row seedling P1 is pushed by the correction member a to move the row seedling P1 to a predetermined position on the horizontal conveyor D. A row seedling transfer position correction device for correcting the position.

According to the invention of claim 2, the correction member a is moved back and forth automatically every time the row seedlings P1 are transferred to the horizontal conveyor D. It is a correction device.

According to a third aspect of the present invention, the correction member a is slidably attached to the base plate 1, and the tension spring 6 stretched between the correction member a and the base plate 1 normally causes the horizontal conveyor D, and accordingly 3. The row seedling transposition position correcting device according to claim 1, wherein the row seedling transposition position correcting device is located at a retracted position separated from the row seedling P1 transcribed on it.

The invention according to claim 4 is the row seedling transfer position correcting device according to claim 3, further comprising an operation arm b for advancing the correcting member a against the tension spring 6.

According to a fifth aspect of the present invention, the operation arm b is provided with an engaging piece b1 at the tip thereof, and the required external force is applied to the engaging piece b1 each time the row seedlings P1 are transferred to the horizontal conveyor D. The row seedling transfer position correction device according to claim 4, wherein the correction member a is automatically moved back and forth.

According to a sixth aspect of the invention, the operating arm b is
The shaft 10 is provided with a flexible engaging piece b1 at the tip end thereof, and an elongated hole b2 provided substantially at the center of the shaft 10 which is erected on the correction member a.
To the base plate 1 with the base end b3
6. The row seedling transfer position correction device according to claim 5, wherein the correction device a is mounted on a rotary shaft 9 which is erected upright and protrudes upward through the long hole 8 of the correction member a.

According to a seventh aspect of the present invention, the row of seedlings P1 to be engaged with the engaging piece b1 of the operating arm b and to the lateral conveyor D
7. The row seedling transposition position correcting device according to claim 5, further comprising an operation member c that applies a required external force each time transposing.

According to an eighth aspect of the present invention, the operating member c is provided to the row seedling separating / transferring mechanism C for repeatedly holding the row seedlings P1 from the seedling aggregate PG and transferring the row seedlings P1 to the horizontal conveyor D. The row seedling transfer position correcting device according to claim 7, which is additionally provided.

According to a ninth aspect of the present invention, the flexible engagement piece b is provided.
1 is made of an elastic material such as rubber, elastic plastic, leaf spring, coil spring having a required hardness, and the lower end portion thereof is attached to the peripheral edge of the distal end portion of the operation arm b, so that the required end portion length is increased. 9. The row and seedling transfer position correcting device according to claim 8, wherein the stand stands upright in a state of facing the reciprocating path of the operation member c of the row and seedling separating and transferring mechanism C.

According to the tenth aspect of the invention, a sensor for detecting that the row seedling P1 has been transferred to the horizontal conveyor D is provided, and the correction member a is moved back and forth in response to the detection of this sensor, whereby the row seedling P1 is moved. 5. The position of the horizontal conveyor D is corrected by pushing the position.
This is the row seedling transfer position correction device described.

The invention of claim 11 is a seedling transplanting method which is performed by using the row seedling transfer position correcting device of the transplanter according to any one of claims 1 to 10.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION In the illustrated transplanter, A is a seedling formed by arranging a large number of transplant seedlings, for example, paper tube seedlings P (hereinafter simply referred to as "seedlings P") in rows and columns (including a honeycomb shape). A feeding conveyer for feeding the aggregate PG to the row and seedling separating section B, C is a row and seedling separating and transposing mechanism mounted on the row and seedling separating section B in a swingable manner, and the row and seedling separating and transposing mechanism C is a transplanter. It is configured and arranged so as to oscillate along the traveling direction of the vehicle. D is a horizontal conveyor arranged below the row and seedling separating section B in a state orthogonal to the running direction of the row and seedling separating and transposing mechanism C, and also in a state orthogonal to the running direction of the transplanter. .

The row seedling separation transposing mechanism C separates and holds the row seedlings P1 from the seedling aggregate PG fed by the feeding conveyor A to the row seedling separating section B based on the above-described swinging operation operation, and The work of opening and dropping on the horizontal conveyor D and remounting is repeatedly performed. At this time, the row seedlings P1 are in a state in which the tip side of each seedling P, that is, the leaf tip side is rearward in the traveling direction of the transplanter, and the rear end side is forward in the same direction, in other words, each seedling P moves the horizontal conveyor D. It is set in advance so as to be transferred onto the horizontal conveyor D in a state of crossing at right angles.

E is a receiving end on the delivery end side of the horizontal conveyor D, that is, on the downstream side thereof, indirectly through a not-shown good / bad seedling selection conveyor, or directly without passing through the conveyor. It is a one-to-one set of vertical conveyors with the sides facing each other. F is a rotary planter composed of a pair of left and right flexible discs whose upper receiving positions are opposed to each other on the delivery end side of the vertical conveyor E, that is, on the downstream side thereof.
G is a pair of left and right compression wheels arranged at a position close to the rear side of the rotary planter F, and H is a grooving device arranged at a position close to the front side of the rotary planter F.

On the receiving end side of the vertical conveyor E, the seedlings P fed through the good / bad seedling selecting conveyor are received and sandwiched at a required interval, or on the receiving end side, the horizontal conveyor E is provided. Each seedling P is separated from the row seedlings P1 sent from D and received and sandwiched at a required interval. Then, on the delivery end side of the vertical conveyor E, the rotary planter F is
Receiving and pinching the required length on the tip side of each seedling P at the upper receiving position,
It is opened at the lower open position, and each seedling P is dropped onto the furrow formed by the grooving device H, and at the same time, it is soiled by the crushing wheel G, and each seedling P is planted at a certain depth in the field. Automatically port in.

Reference numeral I denotes a drive mechanism section for driving the horizontal conveyor D, the vertical conveyor E, the rotary planter F, etc. The drive mechanism section I includes the horizontal conveyor D, the vertical conveyor E and the rotary planter. It is arranged on the front side (front side in the traveling direction of the transplanter) such as F, and is configured to be driven in conjunction with the rotation of the drive wheel J.

The above-mentioned configuration, operation and function of the transplanter are the same as those of the conventionally known transplanters. Next, the row seedling transfer position correcting device K of the present invention mounted and shown in this transplanter will be described.

The row seedling transfer position correcting device K is installed on the drive mechanism section I arranged on the front side (front side in the traveling direction of the transplanter) of the horizontal conveyor D and the like, and the row seedling separation transfer mechanism is installed. C corrects the transposition position of the row seedlings P transposed on the horizontal conveyor D to a predetermined position. In other words, the present device K corrects the transposition position of the row seedlings P to the above-mentioned predetermined position, thereby causing the rotary planter F to properly pinch the required tip length of each seedling P as set, and finally It is intended to transplant each seedling according to a predetermined planting depth.

Reference numeral a is a correction member mounted on the base plate 1 on the upper surface of the drive mechanism section I. The correction member is formed by forming hanging walls 3 and 3 on the front and rear edges of a horizontal rectangular top plate 2. More specifically, with respect to D, it is movable back and forth toward the row seedling P1 that has been reprinted on it.

In the correction member a, the slider 4 attached to the lower surface of the top plate 2 is fitted to the rail 5 fixed to the base plate 1, and a tension spring 6 is stretched between the base plate 1 and the top plate 2. As a result, it is normally in the retracted position (FIGS. 3 and 5) apart from the horizontal conveyor D and thus also from the row seedlings P1 transposed on it.

Reference numeral b is an operation arm for advancing the correction member a against the tension spring 6. This operation arm b
A flexible engaging piece b1 is provided at the tip portion, and a long hole b2 provided substantially in the center is fitted to the upper end roller 11 of the shaft 10 standing on the top plate 2, and the base end portion b3 is provided. The boss 7 fixed to the base plate 1 is erected, and is attached to a rotary shaft 9 which is projected upward through the elongated hole 8 of the top plate 2.

Now, when a required external force is applied to the engagement piece b1 to rotate the operation arm b in a predetermined direction (clockwise direction in FIG. 3), the correction member a resists the tension spring 6 and retreats. From the position, the row seedling P1 transferred to the horizontal conveyor D by the hanging wall 3 on the front edge reaches the forward position (FIGS. 7 and 8) for correcting the pushing of the row seedling P1 to the predetermined position. When the external force is removed, the correction member a is automatically returned to the retracted position (FIGS. 3 and 5) by the tension spring 6.

Reference numeral c is an operating member that applies an external force by engaging the engaging piece b1 in order to rotate the operating arm b in a predetermined direction. As the operating member c, as in this example, A device attached to the row seedling separation transposing mechanism C swingably mounted on the row seedling separation section B, for example, a horizontal bridge at the corner of the plate member C1 of the mechanism C is applied. It is suitable.

In the operating member c which is the horizontal rod, the row seedling separation transposing mechanism C swings along the running direction of the transplanter, and the feeding conveyor A feeds the seedlings to the row seedling separating section B. Aggregate PG
The row | line | row seedling P1 is isolate | separated and hold | maintained, and the correction member a is advanced / retreated in a timely manner in connection with repeatedly performing the work of transferring it to the horizontal conveyor D.

The flexible engaging piece b1 is a plate-like member formed of an elastic material such as rubber, elastic plastic, leaf spring, coil spring or the like having a required hardness, and the lower end portion of the engaging piece b1 of the operating arm b. By sandwiching the mounting pieces 12 and 12 at the edges of the tip, the required length of the tip is raised in a state of facing the reciprocating path of the operation member c as the row seedling separation transposing mechanism C swings. There is.

Next, the operation of transferring the row seedlings P1 to the horizontal conveyor D and correcting the row seedlings P1 to a predetermined position based on the above configuration will be described.

As described above, in order to properly pinch the required tip length of each seedling P by the rotary planter F so that the seedlings P are transplanted according to the predetermined planting depth, the horizontal conveyer D is placed on the horizontal conveyor D. Although it is necessary to keep the row seedlings P1 in the predetermined position, the device of the present invention attempts to push the row seedlings P1 to the predetermined position (FIGS. 7 and 8) by starting the correction.

Therefore, the row and seedling separation transposing mechanism C of this transplanter
Is the horizontal conveyor D that holds the row seedlings P1 separated and held from the seedling aggregate PG sent by the feed conveyor A to the row seedling separation section B.
It is assumed that the transfer position is adjusted and set in advance so as to be a position (FIGS. 1, 2, 5, 6) slightly retracted from the predetermined position (FIGS. 7, 8).

The row seedling separation transposing mechanism C drops the row seedling P1 to a position (FIGS. 1, 2, 5, 6) slightly retracted from the above predetermined position (FIGS. 7, 8) of the horizontal conveyor D and transposes it. When operating, the operation member c is engaged with the engagement piece b of the device K.
Engage 1 from its inside and push it over to its outside (FIGS. 2 and 5). In this case, the correction member a
In the retracted position (FIGS. 3 and 5) does not further retract, and the operation arm b does not rotate.

When the row seedling separating / transferring mechanism C transfers the row seedlings P1 to the horizontal conveyor D and then moves back toward the feeding conveyor A to separate and hold the row seedlings P1 in the next stage, The operating member c engages with the engaging piece b1 of the apparatus K from the outside, rotates the operating arm b while pushing and bending the engaging piece b1, and at the same time, moves the correction member a forward against the tension spring 6. Then, the hanging wall 3 at the front edge pushes the row seedling P1 transferred on the horizontal conveyor D to bring it to the corrected position at the predetermined position (FIGS. 6, 7, and 8).

In this case, the correction member a is moved to the forward position (see FIG. 7,
8), the operation arm b also stops at the position where it stops rotating, but in this state, the operation member c pushes and bends the engaging piece b1 and moves inward, so The return movement of the seedling separation transposing mechanism C is not hindered.

That is, the engagement piece b1 moves the correction member a and the operation arm b against the tension spring 6 by the engagement with the operation member c, but the operation member c is moved over at the moving end thereof. A material having a required hardness that can be pushed and bent up to this point is attached by a required structure, that is, by being sandwiched between the attachment pieces 12, 12.

Since a series of operations for transferring the row seedling P1 on the horizontal conveyor D and correcting it to a predetermined position can actually be completed in about 0.1 to 0.3 seconds, Pushing the row seedling P1 by the above correction work, that is, row seedling P1
The movement in the direction orthogonal to the traveling direction of the horizontal conveyor D of
There is no problem in the transportation of the row seedlings P1 by the horizontal conveyor D.

In this way, the row seedlings P1 whose transposition position on the horizontal conveyor D is corrected to a predetermined position are separated into the respective seedlings P on the receiving end side of the vertical conveyor E, and the vertical conveyor E By E sandwiching it at a required interval, the rotary planter F can reliably sandwich the required length on the tip side of the seedling P, and therefore each seedling P can be transplanted in the field at a constant planting depth. .

In the above, the operation member c, which is the horizontal rod provided in the row seedling separation transposing mechanism C, is used to move the correction member a back and forth.
Thus, an example has been described in which the row seedling separating and transposing mechanism C performs the separation and transposing operation of the row seedlings P1.
The present invention is not limited to this. For example, when the row sensor P1 is transferred to the horizontal conveyor D with a required sensor, the correction member a is moved back and forth by driving a motor or the like. May be. Further, the transfer of the row seedlings P1 to the horizontal conveyor D does not have to be performed by the row seedling separation transfer mechanism C, but may be extremely manual work.

[0045]

As is apparent from the above detailed description, according to the present invention, the row seedlings transferred to the horizontal conveyor are designed as they are, even when the field is sloped. Corrected to the predetermined position, the rotary planter correctly clamps the required tip length of each seedling according to the setting, so that each seedling can be transplanted according to the predetermined planting depth.

[Brief description of drawings]

FIG. 1 is a side view of a transplanter equipped with a row seedling transfer position correcting device of the present invention.

FIG. 2 is a side view of the main part of the same.

FIG. 3 is a plan view of the row seedling transfer position correcting device of the present invention.

FIG. 4 is a front view of the above.

FIG. 5 is a side view showing an operation state of the row seedling transfer position correcting device of the present invention.

FIG. 6 is a side view showing an operating condition of the row seedling transfer position correcting device of the present invention.

FIG. 7 is a side view showing an operating state of the row seedling transfer position correcting device of the present invention.

FIG. 8 is a plan view showing an operating state of the row seedling transfer position correcting device of the present invention.

[Explanation of symbols]

C row seedling separation reprinting mechanism D Horizontal conveyor E Vertical conveyor F rotary planter J control ring PG seedling aggregate P1 row seedling P seedling a correction member b Operation arm b1 engagement piece b2 long hole b3 base end c Operation member 1 base plate 6 tension spring 8 long holes 9 rotation axis 10 axes 12 mounting pieces

Claims (11)

[Claims] 1. A row seedling is transposed and conveyed on a horizontal conveyor, and a vertical conveyor on the downstream side of the horizontal conveyor receives and sandwiches each seedling separated from the row seedling at a required interval and conveys it. Further, in the transplanter in which the rotary planter receives and sandwiches and conveys each seedling on the downstream side of the vertical conveyor, drops it into the furrows, and at the same time soils it with a crushing wheel to transplant the seedling. A correction member is movably installed at a position facing the row seedling transferred to the conveyor, and the transfer position of the row seedling is pushed at a predetermined position of the horizontal conveyor by pushing the row seedling with the correction member. A row seedling transfer position correcting device, characterized in that 2. The row seedling transfer position correcting device according to claim 1, wherein the correction member is automatically moved back and forth each time the row seedling is transferred to the horizontal conveyor. 3. The correction member is slidably attached to a base plate, and is normally separated from the horizontal conveyor, and therefore also the row seedlings transferred thereto, by a tension spring stretched between them. 3. The row seedling transfer position correcting device according to claim 1 or 2, wherein the device is located at the retracted position. 4. The row seedling transfer position correction device according to claim 3, further comprising an operation arm that advances the correction member against the tension spring. 5. The operation arm includes an engagement piece at a tip end thereof,
5. The row according to claim 4, wherein the engaging member is adapted to automatically move the correction member forward and backward by applying a required external force each time the row seedling is transferred to the horizontal conveyor. Seedling transfer position correction device. 6. The operation arm has a flexible engaging piece at a tip end thereof, a long hole provided at a substantially center thereof is fitted to a shaft standing on the correction member, and a base end portion. 6. The row and seedling transfer position correcting device according to claim 5, wherein the row seedling transfer position correcting device is attached to a rotary shaft that stands upright on the base plate and projects upward through the elongated hole of the correcting member. 7. An operating member which engages with the engaging piece of the operating arm and applies a required external force to the engaging piece of the operating arm each time the row seedling is transferred to the horizontal conveyor. The described row seedling transfer position correcting device. 8. A row seedling separating / transferring mechanism for separating and holding row seedlings from a seedling aggregate and repeatedly transferring the row seedling onto a horizontal conveyor is provided with the operation member. Item 7. A row seedling transfer position correcting device according to item 7. 9. The flexible engagement piece is made of rubber having a required hardness,
It is made of elastic material such as elastic plastic, leaf spring, coil spring, etc., and by attaching the lower end to the edge of the tip of the operation arm, the required length of the tip can be adjusted by the row seedling separation transposing mechanism. 9. The row seedling transfer position correction device according to claim 8, wherein the device stands upright while facing the reciprocating path of the operation member. 10. A horizontal conveyor is provided with a sensor for detecting the transfer of row seedlings, and with the detection of this sensor, the correction member is moved back and forth to push the row seedlings to move the row seedlings. 5. The row seedling transposition position correcting device according to claim 1, wherein the position is corrected to a predetermined position. 11. A seedling transplantation method, which is carried out using the row seedling transfer position correcting device according to any one of claims 1 to 10.