JPH09252614A - Seedling taking-out device of transplanting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to excellently take a soil block seedling out of each pot part of a seedling tray with a seedling taking-out claw. SOLUTION: The seedling taking-out device of the transplanting machine which takes a soil block seedling S out of the each pot part 37a of the seedling tray 37 with the seedling taking-out claw is provided with a seedling taking-out support member 9 which performs supporting operation before the soil block seedling S is taken out of the pot part 37a of the seedling tray 37 with the seedling taking-out claw so that the soil block seedling S can excellently be taken out.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a transplanter for transplanting seedlings such as vegetables into ridges.

[0002]

2. Description of the Related Art Conventionally, as a transplanter, a seedling tray feeder for intermittently transferring seedling trays for growing soil block seedlings vertically and horizontally in pots formed in many rows and columns, and a planting device for planting soil block seedlings in ridges. And a seedling feeder that picks up the soil block seedlings one by one from the seedling tray and conveys them to the planting device, so that the soil block seedlings are automatically planted in the ridges while running. There is something.

In this transplanter, the seedling tray is intermittently laterally fed, and while the seedling tray is laterally fed, the seedling take-out pawl is inserted into the block soil in the pot portion, and then the pot portion is retreated. When the seedlings are taken out from the pot and the seedlings are taken out from the pots in a horizontal row, the seedling tray is fed vertically by one pitch, and again the seedling tray is intermittently fed laterally to the opposite side. I am trying.

[0004]

However, in the conventional transplanter, in the soil block seedlings in which the root pot is not sufficiently wound, the soil spills and falls when the soil block seedlings are taken out, and therefore the soil block seedlings are removed. Sometimes the roots of block seedlings were planted with their roots collapsed, and there was a problem that planting and subsequent growth would be poor. Also, when removing the soil block seedlings from the pot section of the seedling tray with the seedling take-out claws, the soil block seedlings are not easily removed from the pot section, which may prevent smooth removal of the soil block seedlings from the pot section. There was a problem.

Therefore, the present invention has been made in view of the above problems.
This is to enable the soil block seedlings to be properly taken out when the soil block seedlings are taken out from the pot section of the seedling tray by the seedling take-out nails.

[0006]

The technical means taken by the present invention to achieve the above-mentioned object is, in claim 1, the soil block seedlings S taken out from the pot portion 37a of the seedling tray 37 by the seedling take-out nails 43. In the seedling taking-out device of the transplanting machine, before taking out the soil block seedlings S from the pot portion 37a of the seedling tray 37 by the seedling taking-out nails 43, taking out the soil block seedlings S from the pot portion 37a of the seedling tray 37. Is provided with an auxiliary member 91 for taking out seedlings for performing an assisting operation.

According to the second aspect of the present invention, in the seedling take-out device of the transplanting machine in which the soil block seedling S is taken out from the pot portion 37a of the seedling tray 37 by the seedling take-out nail 43, the pot portion 37a of the seedling tray 37 is taken by the seedling take-out nail 43. Before removing the soil block seedlings S from the pot section 3 of the seedling tray 37
A seedling-extracting auxiliary member 9 that performs an auxiliary operation of pressing the soil block seedling S from the bottom of 7a to solidify the soil block seedling S
1 is provided.

In the third aspect of the present invention, in the seedling take-out device of the transplanting machine in which the soil block seedling S is taken out from the pot portion 37a of the seedling tray 37 by the seedling take-out nail 43, the pot portion 37a of the seedling tray 37 is taken by the seedling take-out nail 43. Before removing the soil block seedlings S from the pot section 3 of the seedling tray 37
It is characterized in that a seedling take-out auxiliary member 91 is provided which performs an auxiliary operation of pressing the soil block seedling S from the bottom of 7a to lift the soil block seedling S from the pot portion 37a.

In the fourth aspect of the present invention, in the seedling take-out device of the transplanter in which the soil block seedling S is taken out from the pot portion 37a of the seedling tray 37 by the seedling take-out nail 43, the pot portion 37a of the seedling tray 37 is taken by the seedling take-out nail 43. Before removing the soil block seedlings S from the pot section 3 of the seedling tray 37
It is characterized in that a seedling taking-out auxiliary member 91 is provided which performs an auxiliary operation of hitting and shaking 7a.

According to a fifth aspect, when the seedling tray 37 is neither horizontally fed nor vertically fed, the auxiliary member 91 for taking out the seedlings is used.
Is characterized in that the auxiliary operation is performed so that the soil block seedling S can be taken out well. Therefore, before taking out the soil block seedlings S from the pot portion 37a of the seedling tray 37 by the seedling take-out claws 43, the pot portion 37a can be satisfactorily taken out from the pot portion 37a of the seedling tray 37. The soil block seedling S is inserted into the inside and pressed to harden the soil block seedling S. This prevents the soil from spilling and falling when the soil block seedling S is taken out.

Further, the seedling tray 37 is provided by the seedling take-out nails 43.
Before taking out the soil block seedling S from the pot portion 37a, the soil block seedling S is pressed by the pressing piece 93 from the bottom of the pot portion 37a of the seedling tray 37.
Auxiliary action to lift the from the pot. As a result, when the soil block seedling S is taken out, the soil block seedling S is easily removed from the pot portion 37a.

Further, the seedling tray 37 is provided by the seedling take-out nails 43.
Before taking out the soil block seedling S from the pot section 37a, the pot section 37a of the seedling tray 37 is shaken by vibration so that the soil block seedling S can be easily removed from the pot section 37a.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 3, the vegetable transplanter 1 is
It is a walking type that has a transplanting device 3 and a steering handle 4 behind the traveling machine body 2, and is a plant for planting soil block seedlings in the ridges 5 at predetermined intervals while straddling the ridges 5 and running in the longitudinal direction thereof. is there.

The advancing direction of the transplanter 1 is called the front-back direction, and the lateral direction orthogonal to the advancing direction is called the left-right direction. The traveling machine body 2 has a pedestal 7 mounted to the front of the transmission case 6 so as to project forward, an engine 8 and the like mounted on the pedestal 7, and front and rear wheels 9 and 10 on both left and right sides. Has been done.

The power of the engine 8 is input to a power transmission mechanism in the mission case 6, and the power input in the mission case 6 is transmitted to a wheel transmission shaft 11 protruding to the left and right sides via a speed change mechanism. At the same time, it can be taken out from a first PTO shaft 12 which is provided behind the wheel transmission shaft 11 and which projects laterally from the transmission case 6 and a second PTO shaft 13 which projects rearward and upward.

Further, a transmission case 14 is provided on the outer ends of the left and right wheel transmission shafts 11 so as to be vertically swingable about its axis, and the rear wheel 10 is supported below the transmission case 14.
Power is transmitted from the wheel transmission shaft 11 to the rear wheels 10 via the chain transmission mechanism in the transmission case 14, and the rear wheels 10 are rotationally driven. The transplanting device 3 is provided on a transplantation frame 15 attached to the rear of the traveling machine body 2, and the seedlings 5
A planting device 16 for planting the seedlings, a seedling feeding device 17 for feeding seedlings to the planting device 16, a soil covering / squeezing roller 18, and a multi-cutting device 19 for making a cut in the multi-film M covering the ridges 5. Mainly composed.

A front portion of the transplantation frame 15 is pivotally attached to a main frame 20 whose front portion is attached and fixed to the mission case 6, and a front portion thereof is rotatably rotatable around the left and right first PTO shafts 12 about the left and right axes.
It is mainly composed of a movable frame 21 to which a soil covering / squeezing roller 18 is attached at a rear portion thereof, and a steering handle 4 is attached and fixed to a rear end side of the main frame 20, and a rear portion of the movable frame 21 is covered with a soil covering / squeezing roller 18. 5 It is supported so as to follow the irregularities on the upper surface,
The vertical distance between the movable frame 21 and the movable frame 21 is adjustable.

The planting device 16 has a planting cup 22 which is pierced and moved to pierce the ridge 5 in order to plant the seedlings supplied from the seedling feeding device 17, and the planting cup 22 can be vertically swung. It is mainly composed of a swinging link mechanism 23 supported by. The swing link mechanism 23 includes a first parallel link 25 having an upper end pivotally supported by a bracket 24 fixed to the movable frame 21 so that the lower end can swing back and forth. The lower end of the first parallel link 25 The rocking plate 26 is pivotally connected to the rocking plate 26, the front end of the second parallel link 27 is pivotally connected to the rocking plate 26, and the planting cup 22 is pivotally connected to the rear end of the second parallel link 27. .

The upper link 2 of the second parallel link 27
A bearing 28 is fixed to 7a, and a crank pin 29a of a crank shaft 29 rotatably supported on the movable frame 21 about the left and right axes is inserted into the bearing 28. The first PT is mounted on the crankshaft 29 via a winding transmission mechanism 30.
The power from the O-axis 12 is transmitted, and the power from the first PTO shaft 12 causes the crankshaft 29 to rotate counterclockwise in FIG. 3, thereby causing the first and second parallel links 25, 26 to rotate.
Thus, the planting cup 22 swings up and down and also swings back and forth, and the planting cup 22 projects into the ridge 5 at the lower end side of the locus.

Further, the planting cup 22 is provided with an opener 22a which can be opened and closed back and forth in the lower part.
Is opened back and forth by the interlocking tool 31 when it enters the ridge 5 on the lower end side of the locus of the planting cup 22, forms a transplant hole in the ridge 5, drops seedlings into the transplant hole, and then covers the soil.
The crushing roller 18 allows soil to be planted from the left and right of the transplant hole.

A multi-cut device 19 is provided in front of the planting cup 22, and the multi-cut device 19 includes:
A cutting tool 32 for making a cut in the multi-film M is provided, and the cutting tool 32 is connected to the movable frame 21 via a parallel link 33 so as to be vertically movable. Parallel link 3
The cam roller 34 is pivotally attached to the upper link 33a of 3,
The cam roller 34 rolls on the outer circumference of a disk-shaped cam 35 provided on the crankshaft 29. The cutting tool 32 is urged by its own weight in a direction in which the cam roller 34 is pressed against the outer circumference of the cam 35.

A concave portion 36 is formed in a part of the cam 35 in the circumferential direction. When the cam roller 34 falls into the concave portion 36, the cutting tool 32 moves downward by its own weight, and the lower part of the cutting tool 32 is moved downward. The multi-film M is projected to form a cut K in the multi-film M, and the opener 22a of the planting cup 22 is projected into the cut K.

The cam 35 is provided on the multi-film M as a K
It is formed so as to raise the cutting tool 32 immediately after making a cut, and other parts except the recessed part 36 are
In order to hold the cutting tool 32 in the standby position at the upper limit, the outer peripheral shape is formed so that the distance from the axis of the crankshaft 29 is substantially constant. The seedling feeding device 17 is arranged on the upper rear side of the main frame 20 and supports a seedling tray 37 that accommodates a large number of soil block seedlings S vertically and horizontally, and supports the seedling tray 37 backwardly and intermittently feeds it vertically and horizontally. And the seedling tray 37 is arranged in front of the seedling tray feeding device 38.
The seedling dispensing device 39 takes out the seedlings one by one and conveys them to the planting cup 22.

The seedling tray 37 is made of plastic, is thin and has flexibility, and is provided with a large number of pot portions 37a arranged in a grid pattern at a predetermined pitch in the vertical and horizontal directions.
The opening edge portions of the pot portion 37a are connected to each other in a planar shape. The soil block seedling S is grown by filling the pot portion 37a with the bed soil, and sowing and raising the seedling there.

As shown in FIGS. 3 and 4, the seedling feeding device 39 is a pawl driven by power transmitted from the second PTO shaft 13 via the universal joint 40, the power transmission mechanism in the relay box 41, and the like. It has a seedling take-out claw 43 which is supported via the operating mechanism 42 and draws a reciprocating locus represented by a forward locus X and a backward locus Y. Explaining this seedling feeding device 39 together with the operation, FIG. 4 shows a standby state before taking out the seedlings S from the seedling tray 37, and from this state, the crank pin 44 is within the central arc portion of the elongated hole 46 of the swing arm 45. When rotated, the push link 47 swings around the pin 48, and the claw support 50 and the seedling take-out claw 43 move toward the block soil in the pot portion 37a via the claw attachment 49.

At this time, the claw guide 51 is immovable because the operating member 52 is in contact with the operating piece 53, and when the base 54 moves forward, the lock arm 57 engages with the holding body 59 and the returning operation is performed. It has been blocked. After that, when the crank body 60 rotates, the swing arm 45 swings forward through the crank pin 44, and the seedling picking claw 43 and the claw guide 5 are moved.
1 moves forward and the seedling S is extracted from the pot portion 37a. Then, the roller 61 of the holding body 59 slides in the cam groove 63 of the guide plate 62, the seedling take-out pawl 43 moves to the lower end of the forward movement path X, and is brought into a downward posture, and then a spring (not shown). Is released, and the elastic force causes the nail guide 51 to move forward to push the seedling S away from the seedling take-out nail 43, and the seedling S is put into the planting cup 22 from above.

After that, the seedling picking claw 43 moves on the backward movement locus Y and returns to the position and state before picking up the seedling shown in FIG. As shown in FIG. 3, FIG. 5, and FIG. 6, the seedling tray feeding device 38 includes a movable frame 65 which is supported by a guide rail 64 fixed to the main frame 20 and the handle 4 so as to be movable in the left and right directions. The frame 65 has a support plate 66 that supports the bottom portion of the seedling tray 37 across the horizontal row of pot portions 37 a, and the support plate 66 is attached and fixed between the left and right side plates 67.

A vertical feed drive shaft 6 is provided below the left and right side plates 67.
8 are arranged in the left-right direction, and the left-right side plate 6 is provided.
A vertical feed driven shaft 69 is disposed in the left-right direction in the upper part between the seven, a pair of left and right drive sprockets 70 is fixed to the drive shaft 68, and a pair of left and right driven sprockets 71 is attached to the driven shaft 69. It is fixed. An endless chain 72 is hung between the drive sprocket 70 and the driven sprocket 71, and a transport pin 73 that engages with a gap between the pot portions 37a in the vertical direction is mounted on the chain 72. Installed. Therefore,
By rotating the drive shaft 68 in the direction indicated by the arrow A in FIGS. 3 and 6, the seedling tray 37 is pushed by the transport pin 73 and can be vertically fed.

In this seedling tray feeding device 38, the size of the opening of the pot portion 37a is different, but the intervals between the openings of the pot portion 37a are substantially the same (thus, the pitch between the centers of the pot portions 37a is different). A kind of seedling tray 37 is attached, and therefore, the transport pin 73
Is not provided so as to engage with each of the pot portions 37a, but is provided at a position where the gaps between the pot portions 37a in the vertical direction of the two kinds of seedling trays 37 are aligned in the vertical direction.

The lateral feed mechanism of the seedling tray 37 will now be described. As shown in FIG. 5, the left and right side plates are arranged between the left and right support members 74 fixed to the handle 4 on both the left and right sides of the movable frame 65. A lateral feed shaft 75 that penetrates 67 and has an endless spiral groove is attached rotatably around the left and right axes, and a slider 76 having an engaging member that engages with the spiral groove is externally fitted to the lateral feed shaft 75. And
The slider 76 is connected to the movable frame 65.

The horizontal feed shaft 75 has a relay box 41.
Power is transmitted through a power transmission mechanism in the right side support member 74 configured by a winding transmission mechanism and a transmission case, the lateral feed shaft 75 is intermittently driven to rotate, and the lateral feed shaft 75 is intermittently driven. When it is driven to rotate, the slider 76 moves left and right, and the movable frame 65 is intermittently reciprocated in the left and right direction.

Next, the vertical feed mechanism of the seedling tray 37 will be described. As shown in FIG. 5, vertical feed cams 77 are fixed to the left and right sides of the horizontal feed shaft 75, and the movable frame 65 is provided between the left and right side plates 67. The vertical feed operating shaft 78 is rotatably supported by
The vertical feed operation shaft 78 is provided with a pair of left and right followers 79 that engage with the vertical feed cam 77 when the movable frame 65 moves to the leftmost end or the rightmost end.

Further, the vertical feed operating shaft 78 includes a link 80,
It is interlockingly connected to the vertical feed drive shaft 68 via a one-way clutch 83 and the like, and when the movable frame 65 moves to the leftmost end or the rightmost end, the seedling tray 37 is vertically fed one pitch at a time. As shown in FIGS. 1 and 2, a seedling extraction assisting member 91 is provided between the left and right side plates 67. The seedling extraction assisting member 91 is a support member 74 on the right side.
It is externally fitted and fixed to a support shaft 92 in the left-right direction which is rotatably mounted around the shaft center. A tapered pressing piece 93 is provided at the tip of the seedling taking-out auxiliary member 91, and the pressing piece 93 is pressed by the spring 94 in the seedling taking-out auxiliary member 91.
7 is urged downward and rearward so as to be separated from the pot portion 37a.

A rotary shaft 95 is projected on the right support member 74, and power is transmitted to the rotary shaft 95 through a power transmission mechanism in the right support member 74. The rotary shaft 95 has a transverse feed shaft 75 intermittently. It is configured to make one rotation around the axis while the rotation is stopped by driving. Rotating shaft 95
Is provided with a cam 96, and a support shaft 92 is provided with a follower piece 99 having a roller 98. One rotation of the rotating shaft 95 causes the cam 96 to press the follower piece 99 to rotate the seedling taking-out auxiliary member 91 around the support shaft 92 against the spring 94, whereby the seedling taking-out pawl 43 causes the seedling tray. Before removing the soil block seedling S from the pot portion 37a of 37, the pressing piece 93 is inserted into the pot portion 37a from the hole a at the bottom of the pot portion 37a of the seedling tray 37 to press the soil block seedling S to press the soil block. It is designed to perform an auxiliary action to harden the seedling S. Therefore, since the soil block seedlings S are solidified before the soil block seedlings S are taken out by the seedling take-out nails 43, even if the soil block seedlings S are not sufficiently wound in the root pot, the soil will fall down when the seedlings are extracted. It will not happen.

In the above embodiment, the soil block seedling S is pressed by the pressing piece 93 to harden the soil block seedling S, but instead of this, the shape of the pressing piece 93 is changed, The pressing piece 93 presses the soil block seedling S from the bottom of the pot portion 37a of the seedling tray 37 to perform an auxiliary operation of lifting the soil block seedling S from the pot portion 37a, whereby the soil block seedling S is moved to the pot portion 37.
You may make it easy to escape from a.

FIG. 8 shows another embodiment, in which the tapping portion 101 is provided at the tip of the seedling taking-out auxiliary member 91, and the lateral feed shaft 7 is provided.
While 5 is stopped by the intermittent drive, the cam 9
By rotating the seedling 6 around the rotary shaft 95 once, before taking out the soil block seedling S from the pot portion 37a of the seedling tray 37 by the seedling taking-out claw 43, the tapping portion 101 of the seedling taking auxiliary member 91 of the seedling tray 37 The bottom portion of the pot portion 37a is tapped, and the pot portion 37a of the seedling tray 37 is vibrated and shaken by tapping the bottom portion of the pot portion 37a of the seedling tray 37 with the tapping portion 101 of the seedling extraction auxiliary member 91. The soil block seedling S is designed to be easily removed from the pot portion 37a. Therefore, in this case, the seedling take-out nail 4
Before taking out the soil block seedlings S by 3, the pot portion 37a of the seedling tray 37 is shaken by vibration so that the soil block seedlings S can be easily removed from the pot portion 37a, and the seedling take-out claws 43 cause the soil block seedlings from the pot portion 37a. S
Can be taken out easily and satisfactorily.

FIG. 9 shows another embodiment, in which the cup portion 102 is provided at the tip of the seedling taking-out auxiliary member 91, and the cam 96 is operated while the lateral feed shaft 75 is stopped by the intermittent drive. By rotating around the rotary shaft 95 once, before taking out the soil block seedling S from the pot portion 37a of the seedling tray 37 by the seedling taking-out nail 43, the seedling taking-out auxiliary member 91.
The pot portion 37a of the seedling tray 37 is tapped by the cup portion 102 of the seedling tray 37, and the bottom portion of the pot portion 37a of the seedling tray 37 is tapped by the cup portion 102 of the seedling extraction assisting member 91. The pot portion 37a is shaken by vibration so that the soil block seedling S can be easily removed from the pot portion 37a. Therefore, also in this case, the soil block seedlings S can be easily and satisfactorily taken out from the pot portion 37a by the seedling taking-out claws 43.

[0038]

According to the present invention, before taking out the soil block seedling S from the pot portion 37a, the auxiliary member 91 for taking out seedlings is provided.
Since the auxiliary operation is performed so that the soil block seedling S can be taken out favorably from the pot portion 37a, the soil block seedling 43 can be easily and satisfactorily used by the seedling taking-out nail 43 without spilling the soil when the seedling is taken out. Can be taken out.

[Brief description of drawings]

FIG. 1 is a side sectional view of a seedling tray feeding device portion showing an embodiment of the present invention.

FIG. 2 is a front sectional view of the seedling tray feeding device portion.

FIG. 3 is an overall side view of the transplanter.

FIG. 4 is a side view showing a seedling take-out structure.

FIG. 5 is a cross-sectional view of the seedling tray feeding device as seen from the front upper side.

FIG. 6 is a schematic side view of a seedling tray feeder.

FIG. 7 is a side cross-sectional view of a seedling tray feeding device portion showing another embodiment.

FIG. 8 is a side sectional view of a seedling tray feeding device portion showing another embodiment.

[Explanation of symbols]

 37 Seedling tray 37a Pot part 43 Seedling take-out nail 91 Seedling take-out auxiliary member

Claims (5)

[Claims] 1. A seedling tray (3) with a seedling picking nail (43).
7) From the pot part (37a) to the soil block seedling (S)
In the seedling taking-out device of the transplanting machine, which is adapted to take out, before taking out the soil block seedlings (S) from the pot portion (37a) of the seedling tray (37) by the seedling taking-out nails (43),
A seedling taking-out auxiliary member (91) is provided for assisting the taking out of the soil block seedlings (S) to the pot portion (37a) of the seedling tray (37). Seedling extractor for transplanter. 2. The seedling tray (3) by means of the seedling picking nails (43).
7) From the pot part (37a) to the soil block seedling (S)
In the seedling taking-out device of the transplanting machine, which is adapted to take out, before taking out the soil block seedlings (S) from the pot portion (37a) of the seedling tray (37) by the seedling taking-out nails (43),
The soil block seedling (S) is pressed by pressing the soil block seedling (S) from the bottom of the pot portion (37a) of the seedling tray (37).
A seedling taking-out device for a transplanter, which is provided with a seedling taking-out auxiliary member (91) for performing an auxiliary operation for hardening the seedling. 3. The seedling tray (3) by means of the seedling take-out nails (43).
7) From the pot part (37a) to the soil block seedling (S)
In the seedling taking-out device of the transplanting machine, which is adapted to take out, before taking out the soil block seedlings (S) from the pot portion (37a) of the seedling tray (37) by the seedling taking-out nails (43),
The soil block seedling (S) is pressed by pressing the soil block seedling (S) from the bottom of the pot portion (37a) of the seedling tray (37).
A seedling taking-out device of a transplanting machine, which is provided with a seedling taking-out auxiliary member (91) for performing an auxiliary operation of lifting the seedlings from the pot portion (37a). 4. The seedling tray (3) by means of the seedling take-out nails (43).
7) From the pot part (37a) to the soil block seedling (S)
In the seedling taking-out device of the transplanting machine, which is adapted to take out, before taking out the soil block seedlings (S) from the pot portion (37a) of the seedling tray (37) by the seedling taking-out nails (43),
A seedling taking-out device for a transplanting machine, which is provided with a seedling taking-out auxiliary member (91) for performing an auxiliary operation of hitting and shaking the pot portion (37a) of the seedling tray (37). 5. When the seedling tray (37) is not fed horizontally or vertically, the auxiliary member for extracting seedlings (91) is
The auxiliary operation is performed so that the soil block seedling (S) can be taken out well.
The seedling take-out device of the transplanter according to any one of 1.