JPH0338802B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a transplanter that takes out seedlings such as onions one by one from a seedling tank and plants them in a groove.

(Prior technology) Used as a transplanter for planting onions etc.
Technologies such as Japanese Patent Publication No. 21531 (Conventional Example 1) and Japanese Patent Publication No. 57-16602 (Conventional Example 2) have been proposed.

(Problems to be Solved by the Invention) In Conventional Example 1, seedlings are lined up vertically and fed to a disk-shaped implantation device by a crank-moving planter arm, ensuring continuous transplantation. In this case, the tank containing the seedlings must be moved laterally each time one seedling is taken out, which not only complicates the mechanism but also makes it difficult to synchronize the horizontal movement of the tank with the crank movement of the planter arm. The damage to the seedlings was also severe.

In Conventional Example 2, a conveyor is installed in the seedling tank, and the conveyor supplies the seedlings to the disk-shaped planting device.During this supply, it is not possible to expect seedlings to be split one by one, and in the end, the seedlings must be manually distributed. Stock division work became essential, and there was a problem in terms of labor saving.

The present invention makes it possible to secure divisions with less damage to the seedlings by pulling out the seedlings in the longitudinal direction of the stems while keeping them in close contact with each other using suction force, and also to sequentially supply the seedlings to the planting mechanism. The purpose of this project is to provide a transplanter to save labor.

(Means for Solving the Problems) The technical means taken by the present invention to achieve the above-mentioned object are characterized by a seedling tank 7 that stores seedlings 30 with their root sides aligned in a horizontal position. At the bottom of the seedling tank 7, a seedling take-out part 38 is formed on the root side of the seedling 30, from which one of the seedlings 30 can be pulled out in the longitudinal direction of the stem. A planting mechanism 8 for planting is provided, and a single seedling take-out mechanism 12 having a suction part 70 that acts by suction between the seedling take-out part 38 and the seedling receiving part 45 of the planting mechanism 8 is provided. .

(Function) The seedlings 30 in the seedling tank 7 are suctioned and brought into close contact with each other by the suction part 70 of the single seedling takeout mechanism 12, and the single seedling takeout mechanism 12 having the suction part 70 moves as shown by the arrow 11 in FIG. 2, etc. When the seedlings 30 in the seedling tank 7 are rotated in the direction, the seedlings 30 in the seedling tank 7 are separated one by one in the longitudinal direction of their stems and are pulled out and supplied to the seedling receiving section 45 of the planting mechanism 8, where they are sucked. By releasing the action, the seedling 3 is planted in the planting mechanism 8.
0 and rotate the mechanism 8 in the direction of the arrow shown in FIG.
7, and by repeating this sequentially, continuous porting work is performed.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

In FIG. 1, 1 is a wheel of a tractor;
A transplanter 2 is connected to the rear of this via a three-point linkage mechanism 3 so as to be able to rise and fall.

The transplanter 2 includes a machine frame 4, a pair of ground wheels 6 provided on both left and right sides of the machine frame 4 via stays 5,
Seedling tanks 7 arranged horizontally between the ground wheels 6;
A planting mechanism 8 provided correspondingly to the lower part of the seedling tank 7, a trencher 9 provided correspondingly to the front of each planting mechanism 8, and a soil covering mechanism 10 provided to the rear side corresponding to each planting mechanism 8. and a single seedling takeout mechanism 12 which is provided between the lower part of each seedling tank 7 and the seedling receiving portion of each planting mechanism 8 and is operated in the direction of arrow 11.

A suction force generating mechanism 13 is provided in the left and right center portions of the front side of the machine frame 4, and this mechanism 13
It has a suction blower 14 driven by the rotational power of the PTO shaft.

The stay 5 is attached to a tool bar 15 of the machine frame 4 and extends rearward and downward. A grounding ring 6 is rotatably supported at the lower end of the stay 5 via its support shaft 16. It rolls on the ridge bottoms 18 at both ends of the ridge 17 and constitutes a driving source for each part.

The tool bar 15 has a support rod 19 connected to a horizontal shaft 21 via a bracket 20 at intervals in its longitudinal direction.
They are connected to be able to swing vertically around the fulcrum, and extend rearward parallel to each other.

The seedling tank 7 is mounted on a support plate 19 via a support stand 22.

In this case, as shown in FIG.
A rotating shaft 24 is laterally inserted into the upper part of the support column 23 erected from 5, a rod 25 is inserted into the shaft 24 in the radial direction, and the rod 25 is pivoted to the lower part of the seedling tank 7 with the shaft 26. Furthermore, a coil spring 27 is provided around the rod 25, and this spring 27 is connected to the stopper 2.
8. The strength can be freely adjusted and supported using the pin 29.

As shown in FIGS. 7 to 9, the seedling tank 7 has a funnel portion 31 at the center of its bottom that can accommodate only one seedling 30 in a horizontal position.
can be stacked.

Furthermore, the inner wall of the seedling tank 7 has a step-like seedling tray 34 consisting of a rising wall 32 and a slightly downwardly inclined horizontal wall 33, as shown in FIG. It has a tapered shape with an enlarged upper part, and a lid that can be substantially opened and closed is attached to the upper opening 35.

Further, the rear end of the funnel portion 31 is an opening, and a shutter 37 is attached to this opening, which can be fixed vertically by tightening or loosening a bolt 36, and the lower part of the shutter 37 is semicircular.

Therefore, here, the funnel part 31, the shutter 37
etc. constitute a seedling retrieval part 38 from which one of the seedlings 30 in the seedling tank 7 can be pulled out in the longitudinal direction of the stem, and is accommodated (stored) inside the seedling tank 7 in a horizontal position with the root sides aligned. The seedlings 30 that are present can be pulled out from the root side.

The planting mechanism 8 is illustrated in FIGS. 4-6.

A rotating shaft 39 is supported by a bearing 40 between a pair of left and right support plates 19 in a direction perpendicular to the ridges 17, and a pair of left and right disks 41 are attached to this rotating shaft 39.

A pair of disks 41 are opposed to each other,
The disks 41 are made of a flexible material such as rubber, plastic, or canvas, and the seedlings 30 can be held between the disks 41 at will.

Reference numeral 42 denotes a disk guide member, which is arranged radially outside the disk 41 at the lower front side of the rotating shaft 39, and is attached to the bearing 40 via an arm 43 made of an elastic plate, and has the same circular shape at its radially outer end. It has a pinching roller 44 on the circumference.

That is, when the pair of left and right disks 41 are rotated counterclockwise in FIG. It is movable, and the grip on the seedling 30 is released on the vertically downward side of the rotating shaft 39 that is in contact with the ground.

Further, the pair of left and right disks 41 are placed in an expanded funnel-like position by a guide member (not shown) on the upper half side, as shown in FIG. The seedling 30 is grasped in the range from the seedling receiving part 45 to the guide member 42, and the seedling 30 is dropped into the groove 47 from the root side at the seedling release part 46. By repeating this, the seedling 30 is dropped into the groove 47. 30
are continuously transplanted.

It goes without saying that the planting mechanism 8 can have a configuration other than that shown in the drawings.

The furrower 9 is provided in advance of the planting mechanism 8, and although a shoe-shaped one is shown in this example, it may also be disc-shaped. Any type of material that can be formed is sufficient.

In the embodiment, the second
As shown in the figure, a bracket 48 is attached, and a support rod 50 is attached to the bracket 48 via a pin 49 so as to be able to rotate upwardly along the longitudinal direction of the ridge. A stay 5 is supported on the tool bar 15 side via an adjustment tool 52 and has a cylindrical portion 53 on the rear side.
A groove cutter 9 is attached to the cylindrical portion 53 through the support rod 50, and the cylindrical portion 53 can be fixed in a longitudinal position by inserting and removing pins 55 into a plurality of pin holes formed in the support rod 50.

Therefore, in this example, the groove depth of the groove creator 9 can be increased or decreased, and the groove creator 9 can be moved closer or closer to the planting mechanism 8 at will.

The soil covering mechanism 10 is constructed as shown in FIGS. 2 to 4, and includes a pair of left and right soil covering wheels 57 supported at the rear end of the support rod 19 via a stay 56 so as to be rotatable around an inclined horizontal axis. In this example, the planting mechanism 8 and a part thereof are wrapped in the front-rear direction, and the planting mechanism 8 is arranged narrowly so as to expand upwardly on both sides of the groove 47.

In this example, as shown in FIG.
shows a combination of large-diameter wheels and small-diameter wheels, which makes it possible to make the vehicle compact in the lateral direction even when they are arranged side by side in the lateral direction.

Referring to FIGS. 2, 5, 10, and 11, the single seedling extraction mechanism 12 is illustrated.

This single seedling take-out mechanism 12 takes out the seedlings 30 one by one from the seedling take-out part 38 of the seedling tank 7 toward the seedling receiving part 45 of the planting mechanism 8 while suctioning them closely. There is.

Reference numeral 58 denotes a suction disk, which has a groove 59 on its outer periphery, and is attached to a rotating shaft 61 in a direction perpendicular to the ridge attached to the side surface of the support base 22 via a bearing 60, as shown in FIG. It is driven in the clockwise direction indicated by the arrow. A suction disk 63 having a crescent-shaped negative pressure chamber 62 is closely superposed on the outer surface of one side of the suction disk 58 with a sealing material 64 interposed therebetween. It is attached to an arm 66 which can be opened and closed as a branch, and the free end of the arm 66 can be opened and closed to the support base 22 via a bolt-shaped fastener 67.

The suction panel 63 has a suction port 6 that communicates with the negative pressure chamber 62.
8 is formed, and this suction port 68 and the suction blower 14 shown in FIG. 1 are connected in communication with a flexible pipe 69.

The suction disk 58 has a suction section 70 in the circumferential direction.
The suction section 70 is provided with a 180-degree phase, and the suction section 70 can be freely communicated with and shielded from the negative pressure chamber 62.

In this example, the suction part 70 includes a first hole 71 in the radial direction communicating with the groove 59 on the outer periphery and a second hole 7 formed in the thickness direction (axial direction) of the disk 58 in communication with the first hole 71 in the radial direction.
2, and two sets of first holes 71 and second holes 72 are provided in close proximity in the circumferential direction so that the roots, stems, etc. of the seedlings 30 can be sucked at two places and can be released freely.

That is, the suction disk 58 has a groove 5 on its outer periphery.
9 is rotatable on a vertical plane below the seedling take-out part 38 in the seedling tank 7 and above the seedling receiving part 45 in the planting mechanism 8, respectively. In the seedling receiving section 45, the suction section 70 releases the seedlings 30 by passing through the negative pressure chamber 62. Reference numeral 73 is a stopper for transferring seedlings, and 74 is a seedling feeding guide cover, which is provided on the outer circumference of the suction disk 58.

In FIGS. 2, 8, and 11, reference numeral 75 is a roll brush, which is rotatably provided on the outer periphery of the suction disk 58 in the seedling take-out section 38, and which is attached to the taken out seedlings 30. While removing dirt (soil, dead leaves, etc.), the seedlings 30 are pushed into the grooves 59 of the suction disk 58 while aligning them.

In other words, the outer periphery of the suction disk 58 and the roll brush 75 serve to assist in accurately feeding the seedlings 30 to the receiving section 45 while grasping them.

Next, a planting mechanism 8, a single seedling take-out mechanism 12,
The power transmission mechanism such as the roll brush 75 will be explained.

A first sprocket 76 is attached to the end of the support shaft 16 in the grounding wheel 6, and a first chain 78 is connected between it and the second sprocket 77 attached to the shaft 21.
is wrapped around it, and the shaft 21 is rotated by the rolling of the grounding ring 6.
is rotated.

The shaft 21 has a single through structure, and a plurality of third sprockets 79 are mounted on the shaft 21.

Further, a third sprocket 79 and a fourth sprocket 80 are provided on both sides of the bracket 20, and a second chain 82 is wound around a relay sprocket 81 provided between the third sprocket 79 and the support plate 19. A third chain 84 is wound around the upper fifth sprocket 83 and the relay sprocket 81, so that the planting mechanism 8 can be driven there.

Further, a two-stage sixth sprocket 85 is provided at the front upper part of the support base 22, and the sixth sprocket 85 and the fourth sprocket 80 are connected to the fourth chain 8.
A seventh sprocket 88 of various sizes is attached to the shaft 87 of the roll brush 75.
A fifth chain 89 is wound around the sprocket 85 and one of the seventh sprockets 88, and a sixth chain 91 is wound around the other of the seventh sprockets 88 and an eighth sprocket 90 on the shaft 61, and a roll The brush 75 can be driven in the direction of the arrow in FIG. 8, and the suction disk 58 can be driven in the direction of the arrow 11 in FIG.

Although each part may be driven by a motor, a PTO drive of a tractor, etc., driving by the grounding wheel 6 is most advantageous in terms of synchronizing each part.

(Effects of the Invention) The present invention includes a seedling tank 7 that stores seedlings 30 with their root sides aligned in a horizontal position, and one of the seedlings 30 is placed on the root side of the seedling 30 in the lower part of the seedling tank 7 along its stem length. A seedling take-out part 38 that can be pulled out in the direction is formed, a planting mechanism 8 for planting the seedlings 30 in the groove 47 is provided below the seedling take-out part 38, and the seedling take-out part 38
The transplanter has the following advantages: be.

The lowermost seedlings 30 stored in the seedling tank 7 in a horizontal position are connected to a seedling take-out section 38 and a single seedling take-out mechanism 1.
The adsorption action of the second suction section 70 ensures that each plant is separated one by one.

At this time, since the seedlings 30 are pulled out in the longitudinal direction of their stems, there is less pain, and since the seedlings 30 are sucked and sent out by suction, the damage to the seedlings can be significantly less than when the seedlings 30 are mechanically grasped.

Furthermore, the suction part 70 acts as an adsorbent between the seedling take-out part 38 and the receiving part 45 of the planting mechanism 8, and acts as an adsorbent between the receiving part 45 here, thereby ensuring reliable delivery. Since all of the above operations are performed automatically, labor can be saved and porting efficiency can be greatly improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view of the overall configuration, FIG. 2 is a side view of the main part, FIG. 3 is a plan view of the same, FIG. 4 is a rear view of the same part, and FIG. Figure 6 is a detailed side view of the seedling receiving section, Figure 6 is a plan view of the same, Figure 7 is a sectional view of the seedling tank, Figure 8 is a side view of the seedling retrieval unit, Figure 9 is a rear view of the same, Figure 10 is The figure is a sectional plan view of the mechanism for taking out one seedling, and FIG. 11 is a side view of the same. DESCRIPTION OF SYMBOLS 1... Tractor, 2... Transplanter, 7... Seedling tank, 8... Planting mechanism, 12... Single seedling take-out mechanism, 38... Seedling take-out section, 45... Seedling receiving section,
70...Suction part.

Claims (1)

[Claims] 1 A seedling tank 7 is provided for storing seedlings 30 with their root sides aligned in a horizontal position, and the seedlings 3 are stored in the lower part of the seedling tank 7.
A seedling take-out part 38 that can pull out one of the seedlings 30 in the longitudinal direction of the stem is formed on the root side of 0, and a planting mechanism 8 for planting the seedling 30 in the groove 47 is provided below the seedling take-out part 38. A single seedling take-out mechanism 12 having a suction section 70 that acts by suction between the seedling take-out section 38 and the seedling receiving section 45 of the planting mechanism 8.
A transplanter characterized by having the following.