JPH1189331A - Transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothen the relay of the seedling that is picked up from a seedling tray on the seedling stand to the seedling-transplanting nails. SOLUTION: In a rice plant transplanting machine in which seedlings picked up by a couple of the left and right seedling-picking nails 23 are relayed to the seedling-transplanting nails and transplanted, the top side of the seedlings- picking nails 23 at the seedling-releasing position is inclined toward the seedling- transplanting nails 25 and a seedling-relaying guide is provided above the seedling-transplanting nails 25 to guide the seedlings released from the seedling- picking nails 23 and allowing the seedlings to fall down to the seedling- transplanting nails 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter which takes out one seedling of vegetable seedlings such as onions from a seedling tray and transplants the seedlings in a field. About the machine.

[0002]

Normally, one set of planting mechanisms is provided for one seedling mounting table, and one seedling is taken out from one seedling tray and planted. . For this reason, in a walk-type transplanter having only one seedling mounting table, only one planting is performed in one stroke operation. For example, when multiple plants are planted on one ridge, the number of the plants is adjusted according to the number of plants. Need to do the work of the process. Therefore, there is a seedling planting mechanism that can simultaneously plant two seedlings from one seedling tray. In the case of a structure in which the respective center positions are offset at the splicing position, there has been a problem that the seedlings cannot be properly transferred from the seedling removal nails to the seedling planting nails.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a transplanting machine for transferring seedlings taken out of a seedling tray of a seedling mounting table by a pair of left and right seedling picking nails to a seedling mounting nail and planting the seedlings. The tip of the seedling removal claw is inclined in the direction of the seedling claw, and a seedling relay guide for guiding the seedling released from the seedling mounting claw to the seedling claw is provided above the seedling claw. When passing the seedlings from the removal nails to the seedlings, the seedlings should be properly introduced into the center of the seedlings via the relay guide without directly touching the inner surface of the seedlings. It is intended to prevent the occurrence of poor posture and collapse of the root of the seedling, and to improve the accuracy at the time of passing the seedling.

In addition, a claw opening / closing cam for opening and closing the left and right seedling picking claws is provided, and an offset portion for tilting the seedling picking nail toward the center of the seedling mounting claw when the seedling picking nail is released is provided on the nail opening / closing cam. By providing the opening and closing cam effectively, the accuracy at the time of transferring the seedlings can be improved economically.

Further, a claw opening / closing member is provided for abutting the cam surface of the claw opening / closing cam to open and close the seedling removal claw, and by adjusting the operating length of the claw opening / closing member, the right and left seedling removal claw with respect to the seedling mounting claw direction. It is provided so as to adjust the inclination, and the accuracy at the time of passing the seedling is improved economically using the existing claw opening / closing member.

[0006] Furthermore, when the seedlings with the seedlings are passed on, the upper input port of the seedlings with the seedlings is provided to be tilted in the direction of the seedlings withdrawing nails. The centers of the seedlings are approximately matched exactly to improve the accuracy at the time of passing the seedlings.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory plan view of an implanting section, FIG. 2 is an overall side view of an implanting machine, FIG. 3 is an overall plan view thereof, and FIG. 4 is an overall rear view thereof, wherein (1) shows an engine (2) mounted. (3) is a fixed frame that supports the body (1) on the front and rear slide frames (4) and (5) so as to be slidable left and right, and (6) is a body (1) via a slide arm (7).
(8) a hydraulic slide cylinder that slides the
Are left and right rear wheels which are supported on a drive horizontal shaft (10) from a transmission case (9) via a left and right transmission case (11) so as to be able to swing up and down, and (12) is an axle on the front end side of the fixed frame (3). Left and right front wheels supported so as to be able to swing up and down via a frame (13), (14) are front and rear wheels (12) via a fixed frame (3) and a swing shaft (15) on the rear end side.
(8) A hydraulic swing cylinder that swings up and down, (1)
Numeral 6) is a seedling feeder installed behind the body (1) via a chassis frame (17), and (18) is a transmission case (19) planted in the transmission case (9) between the left and right rear wheels (8). And (20a) and (20b) are a pair of left and right large-diameter and small-diameter pressure-reducing rollers for repressing the ridge surface (M), and the seedling supply device. A pot seedling (N) for one plant is taken out from the seedling tray (22) on the seedling table (21) reciprocating right and left by the chopstick-shaped seedling take-out nail (23). (N) is a multi-cutter (2) of the seedling plant (18).
The hopper-type seedling-claw (25), which moves up and down in conjunction with 4), is supplied to the pot (25) at regular intervals on the running ridge (M) of the body (1) by operating the steering handle (26). The plant (N) is configured to be planted, that is, transplanted, and the position of the planted streak is changed by adjusting the horizontal sliding of the body (1).

(27) a lifting lever for operating the swing cylinder (14) to raise and lower the machine body (1); (28) a planting clutch lever for engaging and disengaging the planting clutch; (29) Is a main transmission lever for shifting the traveling speed, (30) is a slide adjustment lever for adjusting the position of the body (1) in the left-right direction, and (31) is a switch for stopping the driving of the left and right rear wheels (8) to move the body (1). Left and right side clutch levers that perform turning operations.

As shown in FIGS. 4 to 9, the seedling removal nail (23) and the seedling mounting nail (25) are provided on one seedling mounting table (2).
The two seedling trays (2) are arranged side by side with a certain interval on the seedling tray (22) of 1), and are driven in phase to form one seedling tray (2).
From 2), two rows of seedlings are harvested and two rows are planted at the same time. The left and right case brackets (32) (32) connected to the chassis frame (17) side have rotary input shafts (33). 2 through the rotary case (34), the crank arm (35), and the take-out arm (36)
Two seedling removal nails (23) and (23) are arranged symmetrically,
The output shaft (39) (4) of the planting clutch case (38) for interlocking the input shaft (37) to the transmission case (9).
0) The left and right rotary input shafts (33) and (33) are connected to the ends via a chain (41), respectively.
Driving two seedling removal nails (23) and (23) in phase
Two seedlings (N) are simultaneously taken out from two seedling trays (22), and after taking out, the seedlings (N) are moved downward to a transfer position with the planting claws (25).

[0010] The seedling mounting claw (25) is provided with a rotary case (44) at both ends of an output shaft (43) of a single transmission case (11) for interlocking the input shaft (42) to the transmission case (9). The right and left seedling planting claws (25) are attached symmetrically via the crank arm (45) and the planting arm (46), respectively, and the rotary case (44) is rotated around the output shaft (43). And the crank arm (4
5), the planting arm (46) is moved up and down along the lifting guide rail (47) while swinging back and forth, and the planting claws (2) are moved.
5) is moved up and down on the elliptical planting locus,
Two semi-conical claw bodies (25
a) A planting claw (25) is formed by (25b), and the planting claw (25) is formed during one rotation of the rotary case (44).
Is raised, the seedling (N) is received from the removal claw (23), and the cam (48) of the crank arm (45) and the rod (49) of the planting arm (46) are received when the planting claw (25) is lowered. ), Each claw body (25a) (2
5b) is moved back and forth to form an opening in the ridge surface (M), and the seedling (N) inside each claw body (25a) (25b) is dropped into the opening in the ridge surface (M). doing.

The seedling mounting table (21) is further provided with left and right side frames (49) fixed to a chassis frame (17).
A drive sprocket (53) supported between the guide rail (50) and the lateral feed drive shaft (51) so as to be able to reciprocate left and right, and supported on the seedling mounting table (21) via the vertical feed drive shaft (52); Vertical feed pins (57) at predetermined intervals of a vertical feed chain (56) stretched between idler sprockets (55) supported via idler shafts (54) are hooked between the pot bottoms of the seedling tray (22). When the seedling mounting table (21) reaches the end of the left-right movement, the vertical feed cam (5) of the vertical feed shaft (58) is moved.
The seedling tray (22) is vertically fed by one pitch via 9).

As shown in FIG. 10, the seedling table (2
An extruding pin (60) that pushes up the seedling (27) of 1) from below when the extraction claw (23) takes it out is provided on the seedling mounting table (21),
The pin (6) is pushed by the extrusion cam (61) of the vertical feed shaft (58).
0), and a vertical feed speed change case (62) is provided on the seedling mounting table (21).
Gear (64) and high-speed gear (6
5) is installed inside the case (62), and the gear (64) or (65) is driven by a pair of vertical feed cams (59) (59) of a vertical feed shaft (58), so that the seedling mounting table ( 21) moves to the left and right reciprocating end, the cam (5)
9) and the drive shaft (52) is rotated via the gear (64) or (65), and the vertical feed chain (56) is operated to vertically feed the seedling tray (15) for one plant (one horizontal line). It is configured to be.

The seedling table driving case (6) for transmitting the driving force from the transmission case (9) to the input shaft (66).
7), the input shaft (66) is operatively connected to the vertical feed shaft (58) via a pair of reduction gears (68), and a pair of intermittent gears (70) is connected to the horizontal feed output shaft (69). The input shaft (66) is interlocked and connected via the
The traverse output shaft (69) and the traverse drive shaft (51) are connected so as to be able to switch the traverse amount by a set of a low-speed gear (71) and a high-speed gear (72).

As shown in FIGS. 11 and 12, a sliding member (21) of a seedling mounting table (21) for fitting a slider (73) to the lateral feed screw groove (51a) on the lateral feed drive shaft (51). 74)
Of the high speed gear (72) and the low speed gear (7).
1) is changed to large or small, and the seedling picking position (a) on each of the traverse trajectories (C1) and (C2) is matched with the seedling picking time of the nail (23), and 200 holes (10 × 20) are set. ) Or 288-hole (12 × 24) tray (22a) (22
The cross feed is performed at the pitch (A) or the pitch (B) corresponding to b). (B) shows the vertical feed timing position of the trays (22a) and (22b) by the vertical feed cam (59).

As shown in FIGS. 13 and 14, the lateral mounting position of the seedling removal nail (23) is adjusted in accordance with the type of the tray (22a) (22b), such as 200 holes or 288 holes, so that two adjacent holes are formed. It enables adjustment of the distance (K) between the centers of the two claws (23) and (23). The output shaft (75) of the rotary case (34) has a tightening bolt (76) and a sinking key (77). The base end of the crank arm (35) is attached to the right and left position adjustment via. A pot hole (22c) at a substantially central portion of the two types of trays (22a) (22b).
An upper end is provided with two types of claw set gauges (78) for fitting two lower projections (78a) at both ends from above, and a tray (2) taken out by two claws (23) (23).
2a) The outer shape and the distance (K) corresponding to the pot hole (22c) of the (22b) are formed so that the protrusion (78a) has two, and the surface of the gauge (78) corresponding to the protrusion (78a). In addition, a display portion (78b) for displaying the width dimension (W) of the seedling removal nail (23) is formed.
a) Adjusting the mounting position of the crank arm (35) integrally with the claw (23) in accordance with the width (W) of the indicator (78b) of the gauge (78) to be fitted to (22b), It is configured to improve accuracy.

As shown in FIG. 15, in the transplanting operation, two plants are simultaneously planted in one planting operation, and after completion of the planting operation, the body is turned to simultaneously plant two plants in the second stroke. , The seedlings for four rows are planted on one ridge surface (M), and further, the body (1) is slid and planted between each of the left and right two rows of the already planted plant. M) It is also possible to allow multiple plants such as six or eight plants to be planted. In addition, the distance between the center of the left rear wheel (8) and the rightmost row of seedlings (N) is adjusted by rightward adjustment within the range of the maximum sliding amount (L0) of the body (1) during the planting operation in one stroke. Can be adjusted in the range of L1 to L2 (L2 = L1 + L0). Further, the lateral feeding amount of the seedling mounting table (21) is reduced by the simultaneous two-row planting, and the seedling supply device (1) is set.
6) The entire width of the seedlings (N) can be reduced, the streaks (L3) of the planted seedlings (N) can always be kept constant, and the fuselage (1) should be at the leftmost position even in a wide ridge. Thereby, the handle (26) can be operated more easily than the operator position between the values behind the left rear wheel (8), and the operability of the handle (26) can be improved.

Still further, the planting device (18) such as the planting claw (23) and the pressure-reducing rollers (20a) (20b) is aligned with the approximate center of the machine body (1), so that planting is performed. The external force received from the ridge surface (M) of the claw (23) and the pitching external force from the pressure reduction rollers (20a) and (20b) can be received substantially equally in the left and right directions, thereby improving the stability of the machine body. Things.

As shown in FIGS. 16 to 20, a cam shaft (79) at the tip of the crank arm (35) has a claw opening / closing cam (80) for opening and closing the tips of a pair of right and left seedling extraction claws (23). ) Are integrally mounted, and an intermediate portion of the seedling take-out arm (36) is swingably attached to a cam shaft (79). The opening / closing cam (80) has protrusions for opening and closing claws on both side surfaces. It has a flat closed cam surface (80a), a depressed open cam surface (80b), and a seedling removal claw (2).
The outer peripheral surface of the cam (80) has a circumferential cam surface (80c) for sliding a linear seedling pushing member (81) for loosely fitting the distal annular portion (81a) on the outer side of the distal end of (3). ing.

The seedling take-out arm (36) has an L-shaped left and right swing fulcrum shaft (82) and a swing plate (83) at one end.
A guide groove (86) of an arm guide plate (85) for integrally supporting the seedling removal claw (23) through the armature and integrally fixing a rear-end-side guide body (84) to the bracket (32).
When the output shaft (75) revolves around the rotary input shaft (33), the rear end side of the seedling take-out arm (36) is moved along the guide groove (86), and the tray is moved. (22) The take-out claw (23) is reciprocally oscillated between a seedling take-out position above and a seedling release position above the seedling-attached nail (25).

Further, a nail opening / closing screw body (87) as a nail opening / closing member is connected to the left and right rocking plates (83) on which the left and right seedling removal nails (23) are mounted, respectively, so that the projection length can be adjusted. Opening / closing cam surfaces (80a) (80b) on both sides of the cam (80) by the spring force of a tension spring (88) extending between the inner ends of the opening / closing screw body (87) between the left and right rocking plates (83). )
The sliding plate (83) is brought into sliding contact with the fulcrum shaft (8).
When the screw body (87) is slid around the opening cam surface (80b) by swinging around the center 2), the tip side of the seedling removal claw (23) is opened and clamped to the tip of the claw (23). The seedlings are released by the cam action of the rotor (89a) of the seedling pushing operation plate (89) to which the seedling pushing member (81) is attached and the circumferential cam surface (80c) of the cam (80). Member (8
The ring-shaped portion (81a) of 1) is configured to be pushed down to the tip side of the nail (23) to release the seedling (N).

The center of the seedling removal nail (23) and the center of the seedling mounting nail (25) are offset by a dimension (E) in the left-right direction, and are located between the centers of the left and right seedling removal nails (23) (23). From the distance (K), the distance (F) between the centers of the right and left seedling-planting nails (25) and (25) is formed to be large (F> K), and these seedling removing nails (23) and seedling-growing nails (25) are formed. ), A cup-shaped seedling relay guide (90) is interposed, and the seedlings (N) released from the seedling removal nail (25) are transferred through the relay guide (90) to the seedlings (2).
5).

As shown in FIG. 20, the cam (80)
Is the downward slope surface (8) at the end of operation of the protruding closed cam surface (80a).
0d) The center position of the rear fixed angle (θ) range is deviated to the left and right sides by a certain dimension (T) to form an offset portion (80e), and the tip of the seedling removal claw (23) changes from closed to open. At the initial stage of the release of the seedlings (N), as shown by the imaginary line in FIG.
The screw body (87) of 3) is displaced to the side opposite to the seedling-growing nail (25), and the tip of the nail (23) is inclined so as to face the center of the seedling-growing nail (25). The seedling (N) is successfully transferred from the extraction nail (23) to the planting nail (25).

Further, the relay guide (90) has an inner surface formed on an inclined surface (90a) to have a shape of approximately 1/4 of the circumference, and the front side of the fuselage above the planting claws (25) and the inner side. The seedling (N) released from the extraction nail (23) is supported by the guide plate (85) so as to cover a substantially 90-degree range centered on the center of the nail (25) between the sides, and the planting nail (25). ), The seedlings (N) are properly introduced toward the center of the planting claws (25) by the guides (90) even when the seedlings (N) deviate from the center to the front or inward.

FIG. 21 shows the swing plate (83).
Screw body (87) and nut (91)
7) by changing the protruding length on the cam (80) side so that the take-out claw (23) has a predetermined inclined posture, and the left and right take-out claws (2).
Take out the seedling (N) with the 3) inclined and remove the nail (23).
Planting claw (25) at a position offset from the dimension (E)
In this case, after adjusting the screw body (87), the set gauge (78) is released.
It is necessary to adjust the mounting position of the crank arm (35) to adjust the distance (K) between the centers of the left and right extraction claws (23) (23) to a set value.

The one shown in FIG.
5) and the guide roller (9) of the planting arm (46).
2) The upper end of the guide groove (93) of the elevating guide rail (47) into which the guide groove (93) is fitted is inclined rearward to form an inclined groove (93a)
When the planting claw (25) is raised to the upper seedling receiving position, the planting claw (25) is tilted rearward at the upper input port (94) by the groove (93a), and the extraction claw (2) is formed.
3) It is configured so as to face in the direction, so that the succession of the seedlings from the seedling removal nails (23) is further ensured.

[0026]

As is apparent from the above embodiments, the present invention provides a method of planting seedlings (N) taken out of a seedling tray (22) of a seedling mounting table (21) by a pair of right and left seedling removal claws (23). In the transplanting machine that is succeeded and planted on the nail (25), the tip of the seedling extraction nail (23) at the seedling release position is inclined toward the seedling mounting nail (25), and is released from the seedling mounting nail (23). The seedling relay guide (90) for guiding the dropped seedlings (N) to the seedling placement nails (25) is provided above the seedling placement nails (25). When the seedling is transferred to the planting nail (25), the center of the planting nail (25) is passed through the relay guide (90) without directly applying the seedling (N) to the inner surface of the planting nail (25). Seedlings (N) are properly injected in the direction to prevent poor seedling posture and collapse of roots of seedlings (N), etc., and improve the accuracy of seedling succession. It is those that can be.

A claw opening / closing cam (80) for opening and closing the left and right seedling removal claws (23) is provided, and the seedling removal claw (2) is provided.
When the seedling is released in step 3), the seedling removal nail (23) is replaced with the seedling-mounted nail (25).
Since the claw opening / closing cam (80) is provided with an offset portion (80e) for inclining in the center direction of the tongue, the existing opening / closing cam (80) is effectively used to economically improve the accuracy of the succession of seedlings. Can be done.

Further, the cam surface (8) of the pawl opening / closing cam (80)
0a) A claw opening / closing member (87) for opening and closing the seedling removal claw (23) in contact with the (80b) is provided, and by adjusting the operating length of the claw opening / closing member (87), the left and right seedling removal claws (23) are adjusted. Since the inclination with respect to the direction of the seedling mounting nail (25) is adjusted, the accuracy at the time of transferring the seedling can be economically improved using the existing nail opening / closing member (87).

Further, when the seedlings (25) are transferred to the seedlings, the upper input port of the seedlings (25) is connected to the seedling removal nails (23).
Since the center is tilted in the direction, the center of the seedling removal claw (23) and the center of the seedling placement claw (25) can be precisely and substantially coincident with each other by tilting, so that the accuracy of the succession of the seedlings can be further improved. You can do it.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view of a transplant portion.

FIG. 2 is an overall side view of the transplanter.

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

FIG. 4 is an overall rear view of the transplanter.

FIG. 5 is an explanatory side view of the transplantation part.

FIG. 6 is a drive explanatory diagram of a seedling removal claw portion.

FIG. 7 is an explanatory plan view of a seedling removal claw portion.

FIG. 8 is a drive explanatory diagram of a seedling mounting claw portion.

FIG. 9 is an explanatory plan view of a seedling-claw portion.

FIG. 10 is a drive explanatory diagram of a seedling mounting table.

FIG. 11 is an explanatory diagram of lateral feeding.

FIG. 12 is an explanatory diagram showing a relationship between a tray and a horizontal feed position.

FIG. 13 is an explanatory diagram of adjustment of a mounting position of a seedling removal claw.

FIG. 14 is an explanatory diagram of a claw set gauge.

FIG. 15 is an explanatory diagram showing a seedling planting state.

FIG. 16 is an explanatory diagram of a seedling succession unit.

FIG. 17 is an explanatory view showing an offset state between a seedling removal nail and a seedling-attached nail.

FIG. 18 is an explanatory plan view of a relay guide.

FIG. 19 is an explanatory diagram of a seedling removal nail.

FIG. 20 is an explanatory diagram of a pawl opening / closing cam.

FIG. 21 is an explanatory diagram of a seedling removal nail.

FIG. 22 is an explanatory view showing an inclined configuration of a seedling-attached nail.

[Explanation of symbols]

 (21) Seedling platform (22) Seedling tray (23) Seedling removal claw (25) Seedling claw (80) Claw opening / closing cam (80a) (80b) Cam surface (80e) Offset section (87) Screw body (open / closed) (90) Seedling relay guide (N) Seedling

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshiro Wada 1-32 Chaya-cho, Kita-ku, Osaka Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Tomohiro Takeyama 1-32 Chayacho, Kita-ku, Osaka Yanmar Agricultural Machinery Co., Ltd.

Claims (4)

[Claims] 1. A transplanter for transferring seedlings taken out of a seedling tray of a seedling mounting table by a pair of left and right seedling picking nails to a seedling mounting nail and planting the seedlings at a tip end of the seedling picking nail at a seedling release position. A transplanter characterized by being provided with a seedling relay guide that is tilted in the direction of the planting claws and that has a seedling relay guide for guiding the seedlings released from the seedling mounting claws into the seedling planting claws. 2. A claw opening / closing cam for opening and closing the left and right seedling picking claws, and an offset portion for tilting the seedling picking nail toward the center of the seedling mounting claw when the seedling picking nail is released is provided on the nail opening / closing cam. The transplanter according to claim 1, wherein the transplanter is provided. 3. A claw opening / closing member for abutting a cam surface of a claw opening / closing cam to open / close a seedling picking claw, and by adjusting an operation length of the claw opening / closing member, a right and left seedling picking claw with respect to a seedling mounting claw direction. 2. The transplanter according to claim 1, wherein the inclination is adjusted. 4. The transplanter according to claim 1, wherein when the seedlings are transferred to the seedlings, the upper input port of the seedlings is tilted in the direction of the seedling removal nails.