JPH0229846Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The present invention is a transplanter suitable for transplanting green onions, etc., which pushes down the roots of the transplanted seedlings that have been moved to the seedling dropping position by the rotation of the seedling supply device and falls. This relates to a dropping device.

[Prior art]

Conventionally, in a transplanter, various devices have been tried as a transfer device between a seedling supply device that places and supplies transplanted seedlings and a vertical conveyance device that transfers the transplanted seedlings of this seedling supply device.

However, in these conventional transfer devices, the transfer between the seedling supply device for placing and supplying transplanted seedlings and the vertical conveyance device for vertically conveying the transplanted seedlings of this seedling supply device is complicated and troubles are likely to occur. Since the transfer could not be performed well, it affected the planting of the transplanted seedlings, and the transplanter as a whole had the disadvantage that it could not perform good planting.

[Purpose of invention]

The present invention was devised in view of the above-mentioned conventional situation and to eliminate the drawbacks thereof.The present invention is devised in order to eliminate the drawbacks of the conventional technology by pushing down and dropping the transplanted seedlings that have been moved to the seedling dropping position by the rotation of the seedling feeding device. It is an object of the present invention to provide a device for dropping transplanted seedlings of a transplanter that can smoothly transfer the transplanted seedlings to the next process.

[Structure of the idea]

The transplanted seedling dropping device of the transplanter of the present invention, which achieves the above object, includes a seedling feeding device that transfers transplanted seedlings from a seedling supply position on the upper surface to a seedling dropping position on the lower surface, and a seedling feeding device below the seedling feeding device. A vertical transport device is provided so that a vertical transport surface is formed along the transport direction of the device, and a seedling dropping device is provided at the seedling dropping position to push down the roots of the transplanted seedlings. The present invention is characterized in that the transplanted seedlings that have been moved to the seedling dropping position are dropped by the seedling dropping device onto the vertical conveyance device with the root side of the transplanted seedlings facing downward.

〔Example〕

Hereinafter, the present invention will be described with reference to the drawings as an embodiment.

FIG. 1 is a side view showing the entire transplanter for transplanting green onion seedlings.The transplanter 1 is equipped with an engine 3 in the front of the machine body 2, and in the center of the machine body 2. A seat 4 is fixed above and a crawler-type traveling device 5 is provided below, and at the rear of the fuselage 2 there is an upper surface on which a worker sitting on the seat 4 can supply and place transplanted seedlings 6. A seedling supply device A that rotates between a seedling supply position and a seedling drop position X on the lower surface, and a seedling drop device F that pushes down transplanted seedlings 6 that have been moved to the seedling drop position Further, below the seedling drop position X, there is provided a vertical conveyance device B that vertically clamps the fallen transplanted seedlings 6 and conveys them downward. Furthermore, below this vertical conveyance device B, the transplanted seedlings 6 conveyed by the vertical conveyance device B are placed.
A planting mechanism C is arranged so as to be positioned along the side wall 10a of the planting groove 10 formed in advance and to be fixed with cover soil 11. Further, a steering handle 12 extending rearward is fixed to the rear end of the body 2, and the transplanting machine 1 is constituted by these steering handles 12.

The seedling supply device A is provided so as to rotate between a seedling supply position on the upper surface and a seedling drop position X on the lower surface, as shown in FIGS. 2 to 5. It is adapted to move in a direction perpendicular to the direction of the leaf blade of the supplied transplanted seedling 6. The details of this seedling feeding device A are as follows. That is, two left and right stays 14, 14 extending in the front and back direction are fixed to the upper part of the vertical feed case 13, and a frame 21 extending in the horizontal direction is fixed to these two left and right stays 14, 14. A drive shaft 15 and a driven shaft 15a are rotatably supported by a pair of front and rear bearings 21a, 21a fixed to the left and right ends of the frame 21 at a distance in the front-rear direction, respectively. Sprockets 16, 16 are respectively fixed to the driven shaft 15a and spaced apart from each other in the longitudinal direction. Front and rear chains 17, 17 are respectively wound between these pairs of sprockets 16, and a seedling supply belt 18 made of a flat belt is fixed to these chains 17, 17. On the outside of the seedling supply belt 18, there are supply grooves 1 at a predetermined pitch perpendicular to the moving direction of the seedling supply belt 18.
A grooved belt 20 made of a material such as soft synthetic resin or rubber and having a large number of numbers 9 formed thereon is fixed, and the upper surface of this seedling supply device A has a surface on which transplanted seedlings 6 that are long in the direction of movement are placed. It is becoming more and more like this.

This grooved belt 20 is narrower than the width of the seedling supply belt 18 and is adapted to hold only the stem portion of the transplanted seedling 6 supplied into the supply groove 19, and also has a width that protrudes beyond the width of the grooved belt 20. The leaf tip side of the transplanted seedling 6 is placed on a seedling supply belt 18 made of a flat belt so that the leaf tip is transported without damaging the leaf tip or sagging.

Note that the insides of the chains 17, 17 are guided by a frame 21.

Further, the drive shaft 15 of this seedling feeding device A is configured to be intermittently rotated by an intermittent drive device D operated by a constantly rotating drive shaft 22 of the vertical conveyance device B. The details are as follows. That is, a ratchet disk 23 having engagement recesses 23a of a predetermined pitch carved around the periphery is fixed to the drive shaft 15 of the seedling supply device A, and a ratchet disk 23 is provided around the axis of the drive shaft 15 on the outside of the ratchet disk 23. A rotating arm 24 is provided, and the base end of a ratchet pawl 25 that engages with the engagement recess 23a and the tip of a connecting rod 27 are respectively pivotally supported at the tip of the rotating arm 24 by a pin 26. The base end of the connecting rod 27 is pivotally connected to one side of an L-shaped bell crank 29 that is pivotally supported by a fixing pin 28a of a fixing metal fitting 28 fixed to the vertical feed case 13. Also, a bearing 2 is provided inside the ratchet disc 23.
A fixed arm 30 is provided which is fixed to 1a, and a ratchet disc 2 is attached to the tip of this fixed arm 30.
A ratchet pawl 31 for preventing reverse rotation that engages with the engagement recess 23a of No. 3 is pivotally supported.
is urged toward the engagement recess 23a by a spring 31a.

The other end of the connecting rod 32, one end of which is pivotally connected to the other end of the bell crank 29, is pivotally connected to one end of a swinging arm 35 that swings about a fulcrum 34. At the other end is a cam 33 fixed to the drive shaft 22 of the vertical feed device B.
A roller 35a that comes into contact with the
When 5a contacts the cam 33, it moves upward.

Therefore, the seedling supply device A consisting of the seedling supply belt 18 and the grooved belt 20 is connected to a series of intermittent drive devices D operated by a cam 33 that rotates as the drive shaft 22 of the vertical conveyance device B constantly rotates. Therefore, it rotates intermittently at a predetermined pitch.

Further, a seedling guiding device E consisting of a flat belt 36 attached to the grooved belt 20 is disposed from the side to the bottom of the seedling feeding device A, and the details of this seedling guiding device E are as follows. There is. The flat belt 36 is made to rotate in synchronization with the intermittent rotation of the seedling supply device A by contacting the outer periphery of the seedling supply device A which is driven and rotated intermittently. , three guide rolls 38a rotatably supported between support fittings 37a and 37a fixed to the vertical feed case 13 at intervals in the front and back;
It is wound through 38b and 38c. Therefore, the transplanted seedlings 6 are supplied into the supply groove 19 at the supply position on the upper surface of the seedling supply device A by this guiding device E.
The seedlings are held and transferred via the detour section of the seedling supply device A to the seedling drop position X on the lower surface.

In this way, although the seedling feeding device A transports the transplanted seedlings 6 via the detour section of the seedling feeding device A to the seedling drop position X on the lower surface, the seedling guiding device E does not hold the transplanted seedlings 6. By moving the seedling guiding device E and the seedling feeding device A without causing them to fall off on the way, and rotating synchronously following the movement of the seedling feeding device A, the seedling guiding device E and the seedling feeding device A
Since there is no circumferential speed difference between the transplanted seedlings 6 and the
It is now possible to transport the product without damaging it.

A vertical feeding mechanism B consisting of a front vertical feeding belt 7 located below the seedling falling position X of the transplanted seedlings 6 and a rear vertical feeding belt 8 is disposed below the seedling feeding device A. The details of device B are as follows. In other words, the front vertical feed belt 7 is connected to the upper and lower support shafts 39 supported within the vertical feed case 13.
It is made of a soft synthetic resin or rubber material that is fixed to a V-belt 7a that is wound between upper and lower V-pulleys 40a and 40b provided on the upper and lower V pulleys 40a and 39b, respectively, and the conveyor inner side of this front vertical conveying belt 7. A tension pulley 41 is provided in the position of the tension pulley 41 so that its position can be freely adjusted and fixed. The rear vertical feed belt 8 is rotatably provided on an upper large-diameter pulley 42 that is slidably supported on the drive shaft 22 and on a lower support shaft 43 that is supported within the vertical feed case 13. It is made of a soft synthetic resin or rubber material and is fixed to a V-belt 8a wound between a small-diameter pulley 44 and a small-diameter pulley 44. By arranging it in the vertical direction, the free-rotating front vertical conveying belt 7 follows the movement of the rear vertical conveying belt 8 on the driving side and rotates in synchronization with the movement of the rear vertical conveying belt 8. 7,
8 forms a vertical conveyance path having a downward clamping and conveying surface for vertically clamping and conveying the transplanted seedlings 6.

Then, the rotation shafts 22, 43, 39a, 39b of both vertical feed belts 7, 8 are arranged so that this clamping conveyance surface becomes a vertical conveyance surface along the transfer direction of the seedling feeding device A.
The rotation shafts 15a, 15a of the seedling feeding device A are provided so that their shaft directions are orthogonal to each other,
In addition, the clamping opening Y, which is the starting end of the clamping and conveying surface, is located at a position facing below the roots of the transplanted seedlings 6 that have been transported to the seedling drop position X of the seedling supply device A, and the seedling supply device A is located on one side. is lowered and tilted toward the clamping opening Y.

Further, a seedling dropping device F is provided at the seedling dropping position X of the seedling feeding device A, and the details of this seedling dropping device F are as follows. That is, the base end of a swinging arm 45 is pivotally supported on the frame 21 of the seedling supply device A, and a horizontal shaft 46a at the tip of the swinging arm 45 is attached to a horizontal shaft 46a that supports the seedlings that are directed downward at the seedling drop position X. A push-down roll 46 for pushing down the root side 6a of the transplanted seedling 6 located in the supply groove 19 of the supply device A is pivotally supported, and this push-down roll 46 is perpendicular to the leaf direction of the transplanted seedling 6. It is arranged so that it can swing between a raised position U and a lowered position D shown in FIG. A connecting rod 4 whose tip is pivotally connected to this swing arm 45
The base end of 7 is pivotally connected to the swing end of a swing link 49 that swings about a fulcrum 48, and a roller 50 that is pivoted to this swing link 49 is connected to the cam of the drive shaft 22 that rotates at all times. The push-down roll 46 moves the transplanted seedlings 6, which have been moved to the seedling drop position It is interlocked with the drive shaft 22 so as to be pushed down in synchronization with the movement of. Note that a tension spring 51 is stretched between the tip of the swing link 49 and one end of the swing arm 35.

As shown in FIG. 10, the push-down roll 46 at the lowering position D is in contact with the outer peripheral surface of the rear longitudinal conveying belt 8 and is rotated by the rotational force of the rear longitudinal conveying belt 8, and at this contact position, the transplanted seedlings are 6 to the outer peripheral surface of the rear longitudinal belt 8 side, the push-down roll 46 and the rear vertical belt 8 are pressed together.
The clamping and transferring force of the paper can reliably draw the material into the clamping opening Y of the vertical conveyance device B and transfer it. At this time, the outer side of the rear vertical feed belt 8 is made of a soft material and is deformable.
An arcuate recess 46 with a large radius is provided in the center of the push-down roll 46 to increase the contact area with the transplanted seedlings 6.
In combination with the formation of a, transplanted seedlings 6
While guiding the material to the center, it is possible to reliably hand it over to the vertical conveyance device B without damage.

In the side view shown in FIG. 2, the seedling supply device A has a horizontal imaginary line H so that the root side 6a of the transplanted seedlings 6 is on the lower side from the seat 4 side, and the seedlings can be supplied and placed facing the supplier. The transplanted seedlings 6 are provided on the upper mounting surface of the seedling supply device A with their root sides 6a partially protruding toward the seat 4 side from the end surface of the seedling supply device A. It is ready to be placed. For this reason, the amount of movement of the seedling leaf portion during feeding is small and the root side can be grasped and placed and fed, so feeding of the transplanted seedlings 6 can be made extremely easy.

In addition, at the seedling drop position X, the transplanted seedling 6 whose root side is forcibly pushed down by the push-down roll 46
The seedlings are pushed onto the rear vertical feed belt 8 in an oblique position with the root side 6a facing down, forming an angle α with respect to the conveying surface of the seedling feeding device A, and are transferred to the constantly rotating vertical feed mechanism B. . When the transplanted seedlings 6 fall, since the seedling supply device A is inclined at an angle of θ degrees from the time of supply, the attitude change angle of the transplanted seedlings 6 at the time of transfer when they fall from the seedling supply device A to the vertical conveyance device B. The transplanted seedlings 6 can be smoothly conveyed to the vertical conveyance device B without being disturbed by reducing the amount of turbulence.
is supported by a large-diameter V pulley 42, so that the transplanted seedling 6 can be received in a stable state without the leaves hanging down or bending, and the transplanted seedling 6 can be received in a stable state with the root side 6a facing down. A downward vertical conveyance path formed between the vertical conveyance belts 7 and 8 allows for orderly clamping and conveyance in the vertical direction.

On the other hand, a planting mechanism C is disposed below this vertical conveyance device B, and the details of this planting mechanism C are as follows. Below the vertical conveyance device B,
The seedling receiving tube 55 is configured such that the upper part is wide and the lower part is pinched.
It is fixed to the inside of a left side plate 56a forming a box-shaped guide 56, and the seedling receiving tube 55 has an open rear side and a substantially U-shaped cross-sectional shape in plan view.
Further, the box-shaped guide 56 is fixed to the body 2 by a connecting fitting 57. Both side plates 56a, 56a of this box-shaped guide 56 are inclined along the inclined surfaces 10a, 10a on both sides of the planting groove 10 formed in advance in the field, and the front side of these side plates 56a, 56a is a vertical front plate. 56b, and the rear side is open. Further, a flat plate 56c is fixed horizontally below the center of the box-shaped guide 56, a bottom plate 56d having a substantially U-shaped cross section is fixed below this flat plate 56c, and both side plates 56a, 5
The lower end of the bottom plate 56d projects downward by a height T than the bottom surface of the bottom plate 56d, and the inclined surface 10 of the planting groove 10
a It is designed to advance while sinking into the lower end to create a narrow groove with a depth T. Also, the front plate 56b
A slope 56e is formed below.

The bottom plate 56d is extended rearward, and a frame 58 is arranged in the vertical direction between this downward extension and a frame 58 that projects rearward from a connecting fitting 57 that connects and fixes the both side plates 56a, 56a on the upper side. vertical axis 62
is fixed with a mounting bolt, and this vertical axis 6
2 is provided with an idler ring 60 that is freely rotatable around a vertical shaft 62, and this idler ring 60 is fixed to an idler ring body 59 and the outer periphery of this idler ring body 59. The ring 61 is made of a soft spongy material made of synthetic resin or the like, and as shown in FIG. The outer diameter protrudes approximately parallel to the outer diameter.

Furthermore, a box-shaped guide 5 in front of the idler wheel 60
6 includes a vertical shaft 62 and left and right side plates 56a, 56.
An upper rod 64 is provided that is slidably supported by a connecting fitting 63 that connects between Below, the rear is the vertical axis 6
A lower rod 66 inserted through the two rods 64, 66 is fixed, and both rods 64, 66 are located above and below the idler wheel 60. Upper and lower extrusion arms 67, 67, which intersect with each other and extend horizontally within the inner widths of both side plates 56a, 56a, are fixed respectively.

Between the two connecting rods 65 is a downward L-shaped bell crank 6 that swings about a fulcrum 68.
A roller 70 that fits into a horizontal shaft 71 fixed below 9
The upper part of the connecting rod 72 which is pivotally connected to the upper part of the bell crank 69 is the fuselage 2.
The eccentric cam 73 is connected to a fixed eccentric cam 73 to a third intermediate shaft 90 rotatably provided.

The first intermediate shaft 88 is connected by a V belt wound around the V pulley of the engine 3 and the first intermediate V pulley.
is driven, and the traveling device 5 is driven by this first intermediate shaft 88. The second intermediate shaft 89 is driven by the V belt wound around the V pulley of the first intermediate shaft 88 and the second intermediate V pulley, and the V belt wound around the sprocket of the second intermediate shaft 89 and the third intermediate sprocket. Third intermediate shaft 9 by chain
0 is driven, and the drive shaft 22 is driven by a chain wound around the sprocket of the third intermediate shaft 90 and the sprocket of the drive shaft 22.

Therefore, the upper and lower push-out arms 67, 67 fixed to the rods 64, 66, which slide in the front and rear directions by the swing of the bell crank 69, which swings by the rotation of the eccentric cam 73, move back and forth at a predetermined period. By moving, the transplanted seedlings 6 that have fallen into the seedling receiving tube 55 are pushed out to the rear of the seedling receiving tube 55. Due to the pushing action of the pushing arms 67, 67, the transplanted seedlings 6 are pressed against the inclined surface 10a of the planting groove 10 by the idler wheel 60 having a soft spongy ring 61 on the outside. While the transplanted seedlings 6 are being pressed, the root side of the transplanted seedlings 6 is further covered with soil to a predetermined depth with soil 11 generated by the advancement of the soil covering plate 74 fixed to the bottom plate 56d, and the transplanted seedlings 6 are placed in the planting groove 10. By fixing, the transplanting work by this transplanter 1 is completed.

In the planting groove 10 into which this transplanted seedling 6 was transplanted,
In the case of the green onion shown in the example, after being transplanted by the transplanter 1, as the transplanted seedling grows, it is mulched several times with organic matter such as compost so that its height gradually increases.

As described above, in the present invention, the transplanted seedlings 6 supplied from the upper surface of the seedling supply device A are transported to the seedling drop position X provided on the lower surface, and the transplanted seedlings 6 that have been transported to the seedling drop position X are A seedling dropping device F provided at a seedling dropping position X in conjunction with the seedling feeding device A pushes down and drops the transplanted seedlings 6 into a position with the root side 6a facing downward, and pulls them into the clamping opening Y of the vertical conveying device B. Therefore, the conveyance to the vertical conveyance device B for the next step can be made extremely smooth.

[Effect of idea]

In short, the transplanted seedling dropping device of the transplanter according to the present invention includes a seedling feeding device that transfers the transplanted seedlings from a seedling feeding position on the upper surface to a seedling dropping position on the lower surface, and a seedling feeding device located below the seedling feeding device. A vertical conveyance device is provided so as to form a vertical conveyance surface along the transfer direction of the seedlings, and a seedling drop position is provided at the seedling drop position to push down the roots of the transplanted seedlings. Because the structure is configured such that the transplanted seedlings that have been moved to the dropping position are dropped onto the vertical transport device with the root side of the transplanted seedlings facing downward depending on the seedling dropping position, the transplanted seedlings that are fed to the seedling feeding device and transported to the seedling dropping position are Depending on the position at which the seedlings fall, the seedlings are simply pushed down on the root side, and the transplanted seedlings are transferred to the vertical conveyance device with the root side facing downward without changing the orientation or direction of the transplanted seedlings. Transfer will take place.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Fig. 1 is a side view showing the entire transplanter, Fig. 2 is an enlarged side view showing the seedling feeding device and the vertical conveyance device, and Fig. 3 is the − arrow in Fig. 2 showing the relationship with the planting groove. Fig. 4 is a front sectional view of the seedling feeding device;
The figure is a plan view of the seedling supply device, Figure 6 is a front view of the drive device in the direction of the arrow in Figure 2, Figure 7 is a side view of Figure 6 with a part cut away, and Figure 8 is a planting FIG. 9 is a side view showing the device in an enlarged manner, FIG. 9 is a plan view showing the planting device in an enlarged manner, and FIG. 10 is a sectional view taken along the - arrow in FIG. 2. 1... Transplanting machine, A... Seedling feeding device, B... Vertical transport device, C... Planting device, D... Drive device, E...
...Guidance device, F... Seedling dropping device, X... Seedling dropping position, Y... Clamping opening, 6... Transplanted seedling, 6a...
Root side, 46...Push down roll.

Claims (1)

[Scope of utility model registration request] A seedling supply device that transfers transplanted seedlings from a seedling supply position on the upper surface to a seedling drop position on the lower surface, and a vertical conveyance surface that is arranged below the seedling supply device along the transfer direction of the seedling supply device. In addition, a seedling dropping device is provided at the seedling dropping position to push down the roots of the transplanted seedlings, and the transplanted seedlings moved to the seedling dropping position by the rotation of the seedling feeding device are moved to the seedling dropping position by the seedling dropping device. 1. A device for dropping transplanted seedlings of a transplanter, characterized in that the device is configured to drop seedlings onto a vertical conveyance device with the roots facing downward.