JP2001204207A - Vegetable transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform planting works with good seedling planting pawls without being influenced by scrapers when carrying out the planting works with short motion loci with the seedling planting pawls. SOLUTION: This vegetable transplanter is obtained by freely vertically movably installing a mounting fulcrum (87) of the scraper (79) and changing the operating timing of the planting pawls (25) with the scraper (79) in the vegetable transplanter capable of carrying out planting of seedlings for one row with the two planting pawls (25) different in phase by 180 deg. on the same locus as one set and equipped with the scrapers (77), (78) and (79) for the inside and outside capable of scraping off mud sticking to the inner peripheral and outer peripheral surfaces of the seedling planting pawls (25).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetable transplanting machine which takes out one seedling of vegetable seedlings such as onion, leaf onion and white onion from a seedling tray and plant it in a field.

[0002]

Conventionally, seedlings taken out from a seedling tray of a seedling mounting stand by one seedling take-out claw are inherited by one seedling-planting claw to plant one seedling. Since the working speed of these claws is limited and cannot be increased, in the case of crops such as onions that are short between planted plants (8 to 10 cm), the vehicle speed is reduced (for example, about 0.2 m / s). There was a disadvantage that the work efficiency was extremely poor, for example, it was necessary to deal with short crops between the stocks.

[0003] For this reason, two seedlings with different phases at 180 degrees are provided on the same locus, and one set of these two seedlings is conventionally used to plant one seedling with one nail. There is a means that two seedlings are planted in the same time, and the planting locus of the seedlings is made as short as possible to enable high-speed planting of the seedlings. For those with an inner scraper that scrapes mud adhering to the side, as the planting trajectory becomes shorter, the seedlings from the seedling removal nails are not fully removed from the seedling planting nails until the inner scraper is completely removed. The inconvenience of supplying the seedlings with nails occurs.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a method of planting a single row of seedlings with two pairs of open-type seedlings having different phases by 180 degrees on the same locus. In a vegetable transplanter equipped with an inside and outside scraper that scrapes mud adhering to the inner and outer peripheral surfaces of the nail, the mounting fulcrum of the scraper is provided so as to be movable up and down, and the operation timing of the seedling-claw and the scraper is changed. When the planting trajectory of the seedling planting nail is short, the timing for the inner scraper to escape from the seedling planting nail is accelerated, and the seedlings from the seedling removal nails are properly supplied to the seedling planting nails. , Enables good high-speed planting of seedlings.

[0005] In addition, the mounting fulcrum of the scraper is moved up and down in conjunction with the seedling placement operation of the seedling placement claw, and the scraper is moved up and down at the exact timing of the seedling placement operation of the seedling placement claw. Therefore, high-speed planting with good accuracy can be performed.

Further, the seedling mounting claw is brought into contact with a rocking plate which supports the mounting fulcrum so as to be vertically movable via a cam and a roller, and the mounting fulcrum of the scraper is moved up and down to use the cam and the roller. It is possible to achieve good high-speed planting with extremely simple constitution means.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is an overall side view of the transplanting machine, FIG. 2 is an overall plan view of the same, FIG. 3 is a side view of the transplanting section, and FIG. 4 is a plan view of the transplanting section, where (1) is an engine (2). (3) is a front and rear slide frame (4)
(5) A fixed frame that supports the body (1) so that the body (1) is slidable left and right, (6) is a hydraulic slide cylinder that slides the body (1) via a slide arm (7),
(8) is the driving horizontal axis (1) from the transmission case (9).
The left and right rear wheels are supported by a left and right transmission case (11) via a left and right transmission case (11), and the left and right rear wheels (12) are supported on the front end side of the fixed frame (3) by an axle frame (13) so as to be able to vertically swing. Left and right front wheels, (14) is a hydraulic swing cylinder for vertically oscillating front and rear wheels (12, 8) via a fixed frame (3) rear end swing shaft (15), and (16) is an airframe ( A seedling supply device installed behind a chassis frame (17) through 1), (18) is installed between left and right rear wheels (8) and a planting drive case (19) is mounted on a transmission case (9). Seedling planting device to be connected via
Reference numeral (20) denotes a pair of right and left crushing rollers for crushing the ridge surface (M). One pair of crushing rollers is provided from a seedling tray (22) on a seedling mounting table (21) reciprocating left and right of the seedling supply device (16). Of the pot seedling (N) is taken out with a chopstick-shaped seedling removal claw (23), and the taken pot seedling (N) is vertically moved in conjunction with the multi-cutter (24) of the seedling planting device (18). Release and supply to the hopper opening type seedling claw (25), the steering handle (2
6) Planting (transplanting) the pot seedlings (N) at regular intervals on the ridge surface (M) of the body (1) during operation by the operation, and planting by adjusting the lateral sliding of the body (1). It is configured to change the line position.

(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 FIG. 3 to FIG. 11, the seedling removal claw (23) and the seedling claw (25) are connected to one seedling mounting table (2).
The seedling tray (22) of 1) is arranged side by side with a certain interval on the left and right, and driven in phase to collect two seedlings from one seedling tray (22) and plant two seedlings at the same time. While doing
Each one in each seedling removal nail (23) and seedling-mounted nail (25)
It is provided that the phase is made different by 180 degrees on the same nail movement locus (A) (B) of the striation, so that seedling collection and planting are performed twice in one movement locus (A) (B). The seedling collecting speed and the seedling planting speed are configured to be approximately doubled.

As shown in FIGS. 3 to 7, the seedling removing claw (23) is a rotary bracket for fixing a phase adjusting plate (32) to a fixed bracket on the chassis frame (17) side and rotating at a constant speed in one direction. The case (33) is supported on the adjusting plate (32) via the take-out pawl drive shaft (34), and the rotary case (33) 180 is rotated about the drive shaft (34).
The base claw case shafts (36) of the two claw cases (35) are attached to the degree symmetrical positions, and the seedling extraction claws (23) are respectively attached to the tip ends of these claw cases (35).

A sun gear (37) is loosely fitted to the take-out claw drive shaft (34) in the rotary case (33), and the sun gear (37) is fixed to the adjusting plate (32) so that the phase can be adjusted. The idle gear (38) having the same number of teeth as (37) and the planetary gear (3
9) is supported in the rotary case (33) via the intermediate shaft (40) and the case shaft (36). The gears (37), (38) and (39) are provided on the unequal speed gear, The two planetary gears (39) are normally meshed in a row and symmetrically with the sun gear (37) via the two idle gears (38) in a row and symmetrically, with the same claw motion locus (A) during one rotation of the rotary case (33) at a constant speed. The arrangement is such that the seedlings (N) of two plants are alternately taken out from the seedling tray (22) by changing the phase by 180 degrees.

Further, a claw opening / closing cam (41) for opening and closing the seedling removal claw (23) to the left and right is provided in the claw case (35). Drive camshaft (4
2), the cam shaft (46) of the opening and closing cam (41) is connected to the opening and closing fulcrum shafts (47a) and (47b) through the connecting gears (43), (44) and (45). The rollers (49) of the opening / closing arms (48a) (48b) for opening and closing the left and right claw bodies (23a) (23b) of (23) are provided on both side cam surfaces (41a) (41) of the opening / closing cam (41).
b) are brought into sliding contact with each other, and a change in the relative position between the rotary case (33) and the claw case (35) causes the claw bodies (23a) and (2) to move.
3b) is opened and closed to close the claws (23a) and (23b) when the seedling removal claw (23) enters the seedling tray (22) to clamp the seedling (N), while the seedling removal claw (23) is held. ) Is moved down to the position for inheriting the seedlings (25), so that the nails (23a) and (23b) are opened and the seedlings (N) are dropped downward.

The take-out pawl drive shaft (34) is connected to a transmission chain (50) from the planting clutch case which is operatively connected to the transmission case (9). The seedling removal nails (for two rows) are driven in the same phase to simultaneously extract two rows of potted seedlings (N) from one seedling tray (22), and the seedling nails (25). Are configured to perform simultaneous inheritance.

The seedling mounting table (21) is further provided with left and right side frames (51) fixed to a chassis frame (17).
A drive sprocket (55) supported between the guide rail (52) and the transverse drive shaft (53) so as to be reciprocally movable left and right, and supported on the seedling mounting table (21) via the longitudinal feed drive shaft (54); Vertical feed pins (59) at predetermined intervals of a vertical feed chain (58) stretched between idle sprockets (57) supported via idle shafts (56) are hooked between the pot bottoms of the seedling tray (22). When the seedling mounting table (21) reaches the end of the left and right movement, the vertical feed cam (60) of the vertical feed shaft (60) is moved.
The seedling tray (22) is vertically fed by one pitch via a).

As shown in FIGS. 3, 4, and 8 to 11,
The seedling mounting claws (25) are provided on both ends of a single rotary case (61) attached inside the transmission case (19) on both the left and right sides of the mission case (9). And a rotary case (61) integrated with the planting drive shaft (62) of the drive case (19).
And a sun gear (63) is loosely fitted to a drive shaft (62) in the case (61), and the sun gear (63) is planted so as to be phase-adjustable via a phase adjusting plate (64). And the planetary gear (6), which is a planetary gear, is connected to the sun gear (63) via the idle gear (65).
The idle gear (65) and the planetary gear (66) are rotatably supported in the rotary case (61) via the intermediate shaft (67) and the planting arm shaft (68), and the sun gear ( 63) The idle gear (65) and the planetary gear (66) are provided on the unequal-speed gear having the same number of teeth, and the two planetary gears (66) via the two idle gears (65) with respect to the central sun gear (63). Are normally meshed in a line and symmetrically.

The seedling-claw (25) is formed by two half-cone-shaped claws (25a) (25b).
Opening / closing rod (69) of two claw bodies (25a) (25b)
(70) is supported on the tip of the planting arm (71) so as to be openable and closable, and the base end of the planting arm (71) is connected to the planetary gear (66), and the phase adjusting plate (72) is attached to the rotary case (61). ), The planting arm shaft (6)
8) is provided with a pawl opening / closing cam (73), and the other end of a cam rod (74) having one end slidingly contacting the cam (73) is fixed to the opening / closing rod (69) (70). 7
5) In connection with (76), when the seedling mounting claw (25) rises to the upper position of the movement locus (B) during one rotation of the rotary case (61), the seedling (23) from the seedling removal claw (23). N), and when the planting claw (25) descends to the lower end position of the movement locus (B), each of the claw bodies (25a) (25b) is moved back and forth by the cam (73) to move the ridge surface (M). ) Is configured to drop the seedling (N) into the opening.

As shown in FIGS. 9 to 13, a front and rear outer peripheral scraper (7) made of a rubber plate having an elasticity to scrape off mud adhering to the front and rear outer peripheral surfaces and the inner peripheral surface of the seedling mounting claw (25).
7) It is provided with (78) and an inner peripheral scraper (79), and is provided on each of upper and lower left and right side surfaces of a scraper mounting plate (80) to be connected and fixed to the chassis frame (17) side via respective brackets (81). The four scraper mounting shafts (82) are detachably fixed, and the scrapers (77), (78) are mounted on bolts (84) on the upper surfaces of the scraper mounting bases (83) fixed to the ends of the mounting shafts (82).
The front and rear basal sides of the mounting plate (80) are detachably fixed, and the left and right seedling mounting claws (2) are provided on both lower and upper sides of the mounting plate (80).
5) The left and right front outer peripheral scrapers (77) and the rear outer peripheral scrapers (78) are provided on the same width (W1) as the inter-width (W), and the right and left seedling-planting claws (25) move the movement locus (B). When descending from the upper end to the lower end, the scraper (78) at the upper position is located on the rear outer peripheral surface of the seedling claw (25).
And the rear end edge (77a) of the concave shape of the scraper (77) at the lower position is brought into contact with the front outer peripheral surface so that the seedling claw (25)
It is configured to scrape mud adhering to the rear and front outer peripheral surfaces.

Further, the inner peripheral scraper (79) has an arc-shaped front and rear end edge (79a), and is detachably fixed to a mounting base (85) via a bolt (84). 85) is pivotally supported on one end of a rocking plate (88) via an arm (86) and a fulcrum shaft (87) as a mounting fulcrum, and is rocked on the substantially central right side of the mounting plate (80). An intermediate portion of the rocking plate (88) is supported via a moving shaft (89) so as to be swingable back and forth, and a rocking plate is provided around a rocking shaft (89) between the mounting plate (80) and the rocking plate (88). A torsion spring (9
0), and a torsion spring (91) for returning the scraper from swinging around a fulcrum shaft (87) between the arm (86) and the swinging plate (88). An arcuate cam (92) convex forward is fixed to the right side of the other end of the rocking plate (88), and a right seedling claw (90) is disposed on the right side of the rocking plate (88). A roller (94) is supported on the left outer surface of the front claw body (25a) of (25) via a fixed shaft (93), and is moved inward by the upward movement of one of the claw (25) with the seedling on the movement locus (B). When the peripheral scraper (79) is inserted into the claw (25), the roller (9) of the other seedling-claw (25) that moves downwards is moved downward.
4) is brought into contact with the convex cam surface (92a) of the cam (92), and the cam (92) is moved downward by the pawl (25).
Forcibly rotate clockwise about 9), rotate the fulcrum shaft (87) integrally with the rocking plate (88) to lower the scraper (79), and move the scraper (79) from the seedling claw (25). The timing of getting out of the scraper (79) is advanced so as to eliminate the disadvantage that the seedling (N) is supplied before the scraper (79) is completely removed from the seedling claw (25) in the short locus of movement (B). Make up.

The mounting plate (80) and the swing plate (8)
8) and between the arm (86) and the rocking plate (88), a position regulating member (95) (96) is provided to
2) When the external force does not act on the scraper (79), the mounting posture of the swing plate (88) and the scraper (79) is maintained constant.

This embodiment is constructed as described above, and has a structure in which high-speed planting is conventionally performed with a short movement locus (B), and the seedling plant inserted from below into the outer periphery of the inner scraper (79). When the nail (25) rises to the seedling transfer position, the seedling (N) is kept in a state where the scraper (79) does not come off.
For example, the supply posture of the seedlings (N) may be disturbed, or the seedling claw (25) may not perform a smooth seedling planting operation. In the case of this configuration, when one of the seedling mounting claws (25) is caused to act on the inner peripheral scraper (79), the roller (93) of the other seedling mounting claw (25) is moved downward by the cam. By the sliding contact of the cam surface (92a) of (92), the scraper (7) is moved through the swing plate (88).
9) is moved downward in the direction opposite to the seedling claw (25) so that the scraper (79) is completely removed from the seedling claw (2).
5) The seedling (N) is supplied from the seedling removal nail (23),
The operation is performed in which the attitude of seedling planting by the seedling claw (25) is always stabilized and the planting accuracy is good.

[0021]

As is apparent from the above embodiments, according to the present invention, one set of two seedling nails (25) having 180 degrees different phases on the same locus is used to plant one seedling. Inside and outside scrapers (77) (78) (79) for scraping mud adhering to the inner and outer peripheral surfaces of the seedling claw (25)
In the vegetable transplanter provided with the seedlings, the mounting fulcrum (87) of the scraper (79) is provided to be able to move up and down, and
5) and the operation timing of the scraper (79) is changed. Therefore, when the planting locus (B) of the seedling planting nail (25) is short, the inside scraper is moved from the seedling planting nail (25). The seedling (N) from the seedling removal nail (23) can be appropriately supplied to the seedling planting nail (25) to advance the timing of exiting (79), thereby enabling good high-speed planting of the seedling. Things.

Since the mounting fulcrum (87) of the scraper (79) is moved up and down in conjunction with the seedling placement operation of the seedling placement nail (25), the seedling placement of the seedling placement nail (25) is performed. It is possible to make the scraper (79) move up and down precisely in timing with the attaching operation, and to supply the seedlings (N) to the seedling planting claws (25) properly, thereby enabling high-speed planting with high accuracy. You can do it.

Further, the seedling claw (25) is brought into contact with a rocking plate (88) supporting the mounting fulcrum (87) so as to be vertically movable via a cam (92) and a roller (94). Since the mounting fulcrum of the scraper (79) is moved up and down, it is an extremely simple component means using the cam (92) and the roller (94), and can make good high-speed planting possible. is there.

[Brief description of the drawings]

FIG. 1 is an overall side view of a transplanter.

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

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

FIG. 4 is an explanatory plan view of a transplant portion.

FIG. 5 is an explanatory side view of a seedling removal claw portion.

FIG. 6 is an explanatory diagram of driving stop of a seedling removal claw.

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

FIG. 8 is an explanatory cross-sectional view of a seedling-claw portion.

FIG. 9 is an explanatory side view of the seedling-attached claw portion.

FIG. 10 is an explanatory side view of a cam portion.

FIG. 11 is an explanatory diagram of the operation of the scraper unit.

FIG. 12 is an explanatory plan view of a seedling-claw portion.

FIG. 13 is an explanatory plan view of a scraper unit.

[Explanation of symbols]

 (25) Seedling claw (77) (78) (79) (87) Support shaft (mounting support) (88) Swing plate (92) Cam (94) Roller (B) Locus

Claims (3)

[Claims] 1. One set of two open-type seedling nails having a phase difference of 180 degrees on the same trajectory is planted as one set, and adheres to the inner and outer peripheral surfaces of the seedling nails. In the vegetable transplanter equipped with an inner and outer scraper for scraping mud, the mounting fulcrum of the scraper is provided so as to be movable up and down, and the operation timing of the seedling mounting claw and the scraper is changed. Vegetable transplanter. 2. The vegetable transplanter according to claim 1, wherein the mounting fulcrum of the scraper is moved up and down in conjunction with the seedling placement operation of the seedling placement claw. 3. A structure in which a seedling mounting claw is brought into contact with a rocking plate that supports the mounting fulcrum so as to be vertically movable via a cam and a roller, so that the mounting fulcrum of the scraper is moved up and down. The vegetable transplanter according to claim 2, wherein