JP2729602B2 - Riding transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanting machine for mainly vegetables and the like, which receives potted seedlings of one plant taken out from a seedling tray of a seedling mounting stand by a seedling picking claw into a planting claw and automatically injects the seeds in a field in order. About.

[0002]

2. Description of the Related Art In a structure in which all of a seedling supply device, a seedling removal device, and a seedling planting device are supported on the machine side via only a hydraulic lifting link, planting is performed only by hydraulic control of the lifting link. Depth control was performed.

[0003]

However, in the case of such a control, it is difficult for the seedling removal device to accurately follow and follow the planting on the ridge surface, so that the planting depth control becomes unstable, There are drawbacks such as forming large irregularities on the ridge surface with a gauge wheel for detecting the ridge surface.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention utilizes an automatic transplanting section such as a seedling supply device having a seedling mounting table, a seedling removal device having a seedling removal claw, and a seedling planting device having a seedling placement claw. In a structure adapted to be mounted on a traveling vehicle, the seedling supply device and the seedling removal device are supported on the traveling vehicle via a hydraulic lifting link so as to be able to move up and down, and the seedling planting device is copied via a copying link. The planting depth control is enabled by dual control of the hydraulic control by the lifting link and the copying control by the copying link.
In addition, in this case, only the seedling extracting device is supported by the copying link, the weight of this copying portion is reduced, and the planting depth control can be made smooth and highly accurate. In addition, by fixing and supporting the weight variation portion such as the spare seedling mounting table or the water tank to the traveling vehicle on the machine side, the weight variation portion can be controlled more stably without adversely affecting the planting depth control. It can be made.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an overall side view of the riding implanter, FIG.
Shows a side view of the transplant portion, in which (1) is a traveling vehicle on which an operator rides, (2) is a body frame on which an engine (3) is mounted on a front portion, and (4) and (5) are traveling. Front and rear wheels,
(6) a hood covering the engine (3) and the like;
(7) a spare seedling table mounted on both sides of the bonnet (6); (8) a driver seat provided above the vehicle body cover (9);
(10) The hood (6) in front of the driver's seat (8)
A steering handle provided at the rear, and (11) is a transplant water tank mounted on the vehicle body cover (9) at the rear of the driver's seat (8).

In the figure, reference numeral (12) denotes an automatic seedling transplanting unit having a seedling supply device (13), a seedling removal device (14), and a seedling planting device (15). The transplanting frame (16) supporting the take-out device (14) is connected to the rear side of the traveling vehicle (1) via a three-point link mechanism (19) including a top link (17) and a lower link (18) so as to be able to move up and down. At the same time, the seedling planting drive case (20) of the seedling planting device (15) is connected to the upper and lower parallel link (21).
(22) is connected to the transplantation frame (16) vertically so as to be freely movable, and is connected to the lower link (18) by a telescopic operation of a hydraulic lifting / lowering cylinder (23).
While the lifting control of 2) is performed, a gauge wheel (25) having a vertically adjustable height at the rear end of the gauge frame (24) extending rearward of the planting device (15) is brought into rolling contact with the upper surface of the ridge (A). Then, the planting device (15) is moved up and down so as to follow the upper surface of the ridge (A), so that the planting device (15) is controlled to follow the ridge (A).

[0007] As shown in FIG.
3) A seedling table (27) on which a seedling tray (26) is mounted.
Upper and lower guide shafts (30) and (31) that support the left and right side plates (28) and (29) below the seedling mounting table (27) and guide the seedling mounting table (27) in the lateral direction. (27) a lateral feed drive case (33) for driving the lateral feed via an arm rod (32), and a left and right vertical feed chain (33) stretched between left and right drive sprockets (34) and idler wheels (35). 36)
Vertical feed pins (37) provided at equal intervals between the left and right vertical feed chains (36), and auxiliary seedlings via a lower fulcrum shaft (38) and an upper supply cylinder (39) above the seedling mounting table (27). Seedling tray automatic supply unit (41) for supporting the mounting table (40)
The vertical feeding of the seedling tray (26) is performed by a vertical feeding pin (37) which is engaged between the bottoms of the cells (26a) of the seedling tray (26) at the end of the horizontal feeding of the seedling mounting table (27). On the other hand, the supply cylinder (39) of the auxiliary seedling mounting table (40)
The seedling tray (26) on the stand (40) is automatically supplied to the seedling stand (27) at the time of extension.

The seedling removal device (14) includes a seedling removal drive shaft (4) for inputting a driving force to the lateral drive case (33).
2) a seedling picking arm (44) for connecting and supporting a seedling picking claw (43) via a rotary case or the like; and a fixed pushing cam of a vertical feed drive shaft (45) for inputting a driving force to the seedling supply device (13). (46) is provided with a seedling push-out pin (49) for connecting a pin support (48) via a swing arm (47), and a seedling removal claw (43) by rotation of the drive shaft (42).
Immediately before the seedling tray (26) is rushed from above, the seedling pushing pin (49) is pushed in from the bottom side of the seedling tray (26) to push out the seedlings. It is configured to take out a seedling with a pin (49).

[0009] The seedling planting device (15) is provided with one of the seedling trays (26) picked up by the seedling picking nails (43).
A hopper-type planting claw (50) having two separate claw bodies (50a) (50b) for receiving and planting the pot seedlings of the plant on the ridge (A), and planting drive via a PTO transmission shaft (51). A planting case (52) for outputting a planting driving force inputted to the case (20); and a planting drive shaft (5) of the case (52).
3) The rotary case (54) and the crank arm (5)
5) The arm (5) of the planting claw (50) supported via
6) and a guide roller (57) fitted at one end of the planting arm (56) to guide the planting claw (50) up and down during rotation of the crank arm (55) to perform a planting movement ( 58), and fixedly attached to the mounting shaft (59) of the planting arm (56) of the crank arm (55).
a) Arms (60a) (60b) supporting (50b)
Rocking plates (61a) (61b) and reciprocating rods (62)
And a pawl opening / closing cam (63) that is connected to the arm (56) by moving the planting arm (56) up and down along the elevating guide (58) during rotation of the planting drive shaft (53). At the time of downward movement, the claw body (50) is held by the cam (63).
a) (50b) is opened, and these nail bodies (50a) (5
It is configured such that the pot seedlings in 0b) are planted in the furrow (A).

A cutter driving mechanism (65) for moving the multi-cutter (64) up and down at the time of laying the multi-sheet on the ridge surface is provided, and the planting case (5) is provided.
A pair of upper and lower links (67) and (68) for vertically supporting the multi-cutter (64) on the fixed mounting plate (66) of (2).
And a cutter vertical movement cam (70) mounted on the planting drive shaft (53) and slidingly contacting the outer peripheral cam surface with the rotor (69) of the upper link (67).
The multi-cutter (64) is moved up and down in conjunction with the up-and-down movement of the planting claw (50) to drill a planting hole in the multi-sheet.

Further, a pivot (7) is attached to the mounting plate (66).
1) and the cultivation roller (7) through the support arm (72).
3), a swing arm (76) for slidingly contacting a rotor (75) with a cam (74) attached to the drive shaft (53) through a swing plate (77) and a rod (78). And the cultivation roller (73) is moved up and down in conjunction with the up and down movement of the planting claw (50) to cultivate the seedling immediately after planting. ing.

By the way, the upper link (21) proximal pivot (21a) of the transplant frame (16) is provided with a potentiometer type for detecting a change in the relative position between the transplant frame (16) and the implanting device (15). A transplanting frame (16) having a planting depth sensor (79) and changing the height of the ridge (A)
When the planting device (15) changes more than the setting, the raising / lowering cylinder (23) is controlled to expand and contract, and the planting device (15)
Is configured to be maintained within the setting.

This embodiment is constructed as described above, and while the worker is traveling on the traveling vehicle (1), the transplanting part (12) automatically moves the seedling tray (26) from the seedling tray (26).
A planting operation is carried out in which pot seedlings of the plant are taken out with the seedling take-out nails (43) and planted at regular intervals on the upper surface of the ridge (A) by the planting nails (50).

In this configuration, the weight variation portion such as the spare seedling mounting table (7), which is large in weight and large in variation, and the water tank (11) required for live use during transplantation, are provided on the machine side. Then, the seedling supply device (13) and the seedling removal device (14), which are relatively heavy, are fixed to the vehicle body cover (9), and the three-point link mechanism (1).
9), the hydraulic cylinder is controlled by a lifting cylinder (23), and only the planting device (15) is supported by the parallel links (21) and (22) so as to be able to move up and down. The tracing control is performed by following the upper surface of the ridges (A), and the lifting and lowering control by the lifting and lowering cylinders (23) is performed without giving the adverse effect of the weight fluctuation units (7) and (11) to the transplanting unit (12) side. The planting depth control is performed smoothly and with high precision by controlling the double structure of the profiling control using the gauge wheel (25).
In this case, by reducing the weight of the copying portion only to the planting device (15), accurate copying control is performed, and the unevenness of the upper surface of the ridge (A) formed by the gauge wheel (25) is also reduced. In addition, since running resistance can be reduced, dragging of the multi-seat can be reduced, and high-precision and good transplantation can be performed.

[0015]

As is clear from the above embodiments, the present invention relates to a seedling supply device (13) having a seedling mounting table (27), a seedling removal device (14) having a seedling removal claw (43), In a structure in which an automatic transplanting section (12) such as a seedling planting device (15) having a seedling planting claw (50) is mounted on the riding type traveling vehicle (1), the seedling supply device (13) and the seedling removal are provided. The device (14) is supported by the traveling vehicle (1) via hydraulic lift links (17) and (18) so as to be able to move up and down, and the seedling planting device (15) is copied via links (21) and (22). Since it is supported by the take-out device (14), the planting depth control is smoothly performed by dual control of hydraulic control by the lifting links (17) and (18) and copying control by the copying links (21) and (22). And high accuracy, and in this case In order to reduce the weight of the copying portion by supporting only the extraction device (14) on the copying links (21) and (22), the copying device is made to follow the ridge (A) well without adversely affecting the ridge (A) surface. The copying operation can be performed. In addition, by fixing and supporting the weight changing parts such as the spare seedling mounting table (7) or the water tank (11) to the traveling vehicle (1) on the machine side, these weight changing parts adversely affect the planting depth control. It has a remarkable effect, such as enabling stable work without trouble.

[Brief description of the drawings]

FIG. 1 is an overall side view of a riding implanter.

FIG. 2 is a side view of an implant.

FIG. 3 is a partial side view of an implanted part.

FIG. 4 is an explanatory side view of the planting device.

FIG. 5 is an explanatory plan view of the planting device.

[Explanation of symbols]

 (1) Traveling vehicle (7) Spare seedling mounting table (11) Water tank (12) Transplant section (13) Seedling supply device (14) Seedling removal device (15) Seedling planting device (17) (18) Link (21) (22) Link (27) Seedling stand (43) Seedling removal claw (50) Seedling claw

Claims (2)

(57) [Claims] An automatic transfer unit such as a seedling supply device having a seedling mounting table, a seedling removal device having a seedling removal claw, and a seedling planting device having a seedling placement claw is mounted on a riding type traveling vehicle. In the structure, the seedling supply device and the seedling removal device are supported by a traveling vehicle via a hydraulic lifting link so as to be able to move up and down, and the seedling planting device is supported by the seedling removal device via a copying link. Riding transplanter. 2. The riding transplanter according to claim 1, wherein a weight changing portion such as a spare seedling mounting table or a water tank is fixedly supported by the traveling vehicle on the machine side.