JPH08298819A - Mulch film cutting device for seedling transplanter - Google Patents

Abstract

PURPOSE: To cut a mulch film for covering the surface of a cultured crop in a field in vegetable transplanter for transplanting a seedling during boring transplanting holes through the film and to excellently recover cut pieces of the film. CONSTITUTION: This mulch film cutting device for seedling transplanter is equipped with a seedling planting part 10 for transplanting a seedling by a seedling planting claw 17, a jetting nozzle for spaying a high-pressure fluid by a pressure pump to cut a mulch film and a recovery device for recovering cut pieces of the mulch film. The seedling planting part 10 equipped with the pressure pump is installed at the rear part of a traveling vehicle 1 and a tank 49 for spraying a liquid is fixed on the front part of the traveling vehicle 1. The jetting nozzle and its jetting control valve are laid ahead the seedling planting claw 17 and a recovery device 47 is installed between the jetting nozzle and the seedling planting claw 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-film cutting device for a seedling transplanting machine, which cuts a multi-film covering a cultivation surface of a crop in a field to open a hole for transplanting.

[0002]

2. Description of the Related Art Conventionally, in a means for forming a hole for transplantation by cutting a mulch film with a heater or a cutting blade, if the cut film remains as a cut piece, it is cut with a suction device or the like. This is done by forcibly sucking one piece. Further, in the means that does not perform such removal by partially providing uncut portions, the other side of cutting is embedded in the soil to secure the formation of the hole for transplantation.

[0003]

However, in the case of the means for suction-removing the cut pieces, there is a problem that the mud is sucked together with the film, and in the case where the cut pieces are left unfilled, this is caused by wind. There was a problem that the cut pieces would flip up and adversely affect the transplanted seedlings.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a seedling planting portion for transplanting seedlings by a nail for planting seedlings, and a spray nozzle for spraying a high pressure fluid by a pressure pump onto a multi-film to cut the film. A recovery device for recovering cut pieces of mulch film, a seedling planting part equipped with a pressure pump is provided at the rear part of the traveling vehicle, and a tank for liquid injection is arranged at the front part of the traveling vehicle, and an injection nozzle and This injection control valve is installed in front of the seedling planting nail, and a recovery device is installed between the spraying nozzle and the seedling planting nail to spray high-pressure fluid such as water on the multi-film surface for easy transplanting in a short time. A hole is formed, and in this case the sprayed water serves as irrigation to facilitate the survival of transplanted seedlings, while the film cut pieces after the formation of the hole for transplantation are collected before the seedlings are planted. Be sure to be removed by the It is intended to enable the Do not growth.

Further, a seedling planting portion for transplanting seedlings by a nail for planting seedlings, a spray nozzle for spraying a high-pressure fluid on the mulch film to cut the film, and a collecting device for collecting the cut pieces of the mulch film are provided. A nozzle swing mechanism that swings the injection nozzle to cut the film into a predetermined shape, and a collection up-and-down movement mechanism that lowers the collection unit of the collection device to collect the film cut pieces. The drive mechanism is interlockingly connected to synchronize the cutting and collecting operation timing with the planting operation timing to simplify the driving structure, and also to adjust the cutting and collecting operation and the planting operation separately. It is intended to improve work efficiency and work accuracy by making the above unnecessary.

Further, a pair of pickup belts for sandwiching and conveying the cut pieces of the multi-film are arranged in front and rear in a direction substantially orthogonal to the traveling direction of the traveling vehicle, and the front end pickup portions of these belts are arranged from the front side in the traveling direction. The rear side is projected to the film side, the structure is simple and only the cut pieces are reliably picked up by the lightweight belt means, and it is conveyed to the predetermined position.Conveying cut pieces even if foreign matter is caught It is to be removed.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a side view of the whole seedling transplanting machine, FIG. 2 is a side view of the seedling transplanting machine, and FIG. 3 is a plan view of the same. In the figure, (1) is a tractor which is a traveling vehicle on which an operator rides, and front and rear wheels (2)
(3), a steering handle (4), a driver's seat (5) and the like, and a bonnet (6) in front of the handle (4)
The engine (7) is arranged inside, and the engine (7) drives the front and rear wheels (2) and (3) to move forward and backward,
The steering wheel (4) is configured to change the direction of travel by changing the direction of the front wheels (2).

As shown in FIGS. 4 to 5, a seedling planting section (10) having a pair of left and right two-row planting units (9) is provided at the rear of the tractor (1) through a lifting link mechanism (8). Left and right preliminary seedling mounts (11) arranged on the left and right outside of the planting unit (9), and the planting unit (9).
The left and right traveling auxiliary wheels (12) arranged on the front side of the ridge, the crushing roller (13) for crushing the ridge surface, and the hard type seedling tray (15) on the seedling placing table (14) on the ridged surface. A hopper-shaped seedling planting nail (17) for planting the pot seedling (A) for one strain taken out by the seedling removing nail (16), and a soil pad roller (18) for covering the seedling after planting with soil. When the planting claw (17) which moves up and down in a substantially elliptical locus by the planting drive mechanism (19) is raised, the seedling (A) supplied and dropped from the seedling take-out claw (16) is received, and the ridge at the time of descent. It is configured to perform this planting in a planting hole formed in the surface.

The seedling mounting table (14) is provided with a hard-shaped seedling tray (15) in a substantially vertical shape in a horizontal and longitudinal direction and is provided so as to be laterally fed in the longitudinal direction of the machine body. Upper guide rail (21) of transplant unit frame (20)
And a lower guide shaft (22) to support the horizontal feed screw shaft (23) and a base mover (24), and the screw shaft (23) rotates to reciprocate the seedling mounting table (14) back and forth. It is configured to perform horizontal feed of.

The seedling mounting table (14) has a front plate (2).
5) The vertical feed drive and idle sprocket (29) (30) are provided between the upper and lower sides of the rear plate (26) and the vertical feed drive and idle sprocket shafts (27) (28), and these sprocket (29) ( Vertical feed pin (3) to be engaged with the outer bottom depression of each cell (15a) of the seedling tray (15)
The vertical feed chain (31) having the vertical feed cam (33) of the vertical feed drive shaft (32) interlocked with the screw shaft (23) at the end of the front and rear horizontal feed of the seedling mounting table (14) is stretched. ), The vertical feed drive mechanism (34) installed on the rear outer surface of the rear side plate (26) is operated to rotate the sprocket (29) by a certain amount to vertically feed the seedling tray (15). ing.

Further, the seedling take-out pawl (16) is provided with a rotary case (38) and a seedling take-out arm on the seedling take-up drive shaft (37) which is interlocked with the seedling take-out output shaft (36) of the planting mission case (35). The pot seedlings (A) for each plant are taken out from the seedling tray (15) which is horizontally fed by being connected via (39).

Furthermore, the seedling planting claw (17) has a rotary case (42) and a crank arm (41) on the planting drive shaft (41) of the planting transmission case (40) constituting the planting drive mechanism (19). 43) by interlockingly connecting the planting arm (44) with each other, and performing a vertical planting operation in which the timing is synchronized with the seedling picking operation of the seedling picking nail (16), and at regular intervals on the upper surface of the ridge (B). The pot seedlings (A) are continuously planted.

As shown in FIGS. 6 to 15, a fluid for cutting a multi-film (45) into a substantially circular shape by jetting water (C) which is a high-pressure fluid to open a hole (D) for transplantation in the film (45). A cutting device (46) and a belt collecting device (4) which conveys and removes the film cut piece (45a) after the cutting.
7) and a planting part (10) are provided, and the cutting device (46) includes a water tank (49) also serving as a front balance weight, which is mounted on a front bumper (48) in front of the tractor (1),
A pair of left and right injection nozzles (51) for injecting high-pressure water from the pump (50) into the mulch film (45) and cutting it by a double plunger pump (50) that pressurizes the water in the water tank (49). ) And an injection valve (52) for injecting and stopping the injection of water from the nozzle (51).
0) Install the pump (50) on the pump base (54) on the upper left side of the work step (53) arranged on the front side, and
The injection valve (52) is connected and supported to the rear end side of the planted transmission case (40) via a mounting plate (55), and the left and right sides of the injection valve (52) are connected to the rear side surface of the valve (52) via a nozzle rotating body (56). The jet nozzle (51) is provided so as to project, and the film (45) is cut by the nozzle (51) at a position slightly ahead of the planting claw (17).

The nozzle rotating body (56) has an injection valve (5).
2) A nozzle swinging mechanism of a cam shaft (58) which is provided on the injection valve (52) so as to swing left and right around the axis of the open / close spool (57) and is rotatably supported by the injection valve (52). The turning arm (60) of the turning body (56) is joined and connected to the cutting cam (59). The cam (59) has a cylindrical shape and the left and right circumferential surfaces are formed on the cam surface (59a). Then, the cam roller (6
1) is brought into contact with the cam surface (59a) by the force of the spring (62),
When the left and right nozzles (51) are swung at a speed of a predetermined ratio by rotating the cam (59) once with respect to the forward speed of the machine body, the high pressure water jetted from the left and right nozzles (51) can be multi-shot without colliding on the way. After reaching the film (45) surface, as shown in FIG. 15, its cutting locus (L1) by high-pressure water
(L2) is formed in a substantially semi-circular symmetrical shape so as to intersect at the start and end of injection (the opening and closing of the injection valve (52) is opened earlier than the start of circular cutting and is closed later than the end of cutting). A substantially circular implantation hole (D) is formed on the surface of the film (45).

Further, the cam shaft (58) is a planted drive shaft (41) projecting to the left outside of the planted transmission case (40).
In addition, sprockets (63) (64) and chains (65)
10 and 11 and FIG. 14 together with interlocking connection via
As also shown in FIG. 6, the valve opening / closing cam (66) attached to the right end of the cam shaft (58) is attached to the swing arm (67) and the arm shaft (6).
8) ・ Injection valve (5) via spool operation arm (69)
2) Connected to the spool (57) of
The nozzle (51) is oscillated and sprayed in conjunction with 7) to open the implantation hole (D) in synchronism with the implantation timing.

The belt collecting device (47) is a pickup belt (a pair of front and rear round-shaped collecting sections disposed laterally on the left side between the seedling planting claw (17) and the injection nozzle (51). 70a) (70b) and the belt (70a)
Electric motor for pickup (7b) (7b)
1) and a film cut piece collection container (72) that faces the feed end of the belt (70a) (70b), and the belt (70a) (70b) is a drive pulley (7) on the left side.
3a) (73b) and right driven pulleys (74a) (74)
It is stretched between left and right between the b), and the driven pulley (74a)
The (74b) side is provided at the feed start end, and the unit frame (2
Connection plate (76) to the mounting frame (75) fixed to
The electric motor (71) and the container (72) are supported through the drive pulley (73a) or (7
3b) pulley shaft (77a) or (77b) is connected to the electric motor (71), and each pulley shaft (77
a) (77b) are interlockingly connected by a pair of spur gears (78), and the film cutting piece (45a) is held between the inner surfaces of the left and right belts (70a) (70b) facing each other from the right cutting position to the left cutting position. It is configured to be transported to the collection position.

The belts (70a) (70b) are
Intermediate pulley (79 that makes the axis perpendicular to the belt feeding direction)
a) (79b) and (79c) are formed in the middle to form a belt bending part (80) that can be avoided by a planting drive part or the like, and an inverted gate frame plate fixed to the frame (75). (81) Intermediate pulley (79a) (79b) at the tip
The driven pulley (7) is connected to the pulley shaft (82) of (79c), and the driven pulley (7) is attached to the tip end of a pickup arm (84) that has a proximal end fixed to the loose fitting shaft boss (83) of the pulley shaft (82).
4a) (74b) pulley shaft (85a) (85b),
In addition, the auxiliary rollers (86a) (86b) are located at the position near the left side.
The roller shafts (87a) (87b) of the above are attached, and the pickup arm (84) is centered around the intermediate pulley shaft (82).
The feed start ends of the belts (70a) and (70b) are provided so as to be swingable up and down.

Further, the driven pulleys (74a) (74)
The rear pulley (74b) of b) is arranged so as to protrude to the right of the front pulley (74a), and a step (t) is provided between the front and rear belts (70a) and (70b) to obtain a film cut piece. (45a) is configured to be reliably picked up between the belts (70a) and (70b).

Further, a belt (70) is provided between the spring mounting piece (88) fixed to the shaft boss (83) and the frame (75).
a) A tension spring (89) for urging the feeding start end side of (70b) downward is provided to make the tip working surface of the belts (70a) (70b) adaptable to the ups and downs of the ridge (B) topsoil.
On the left circumferential cam surface (90a) of the cylindrical cam (90), which is a recovery vertical movement mechanism fixed to the left end of the cam shaft (58),
A belt (70a) in which a roller (92) at the tip of a swing arm (91) fixed to the shaft boss (83) is brought into pressure contact with the swing and injection of the nozzle (51) in synchronization with the timing.
The vertical swing of (70b) is configured to be intermittently performed.

Further, as shown in FIGS. 11 to 12, an elastic film pressing plate (93) having a gate shape in a plan view and an L shape in a side view is provided at a lower position on the feeding start end side of the belts (70a) (70b). The upper upper end portion (93a) on the front side of the holding plate (93) is connected to the injection valve (52), and the horizontal flat portion (93) on the rear side of the holding plate (93) is provided.
The back surface of b) is brought into sliding contact with the film (45) surface, and the jet port (51a) of the nozzle (51) and the belts (70a) (7).
0b) is made to face the feeding start end of the film (45) by the nozzle (51) and the belts (70a) (70b) are made to face the inside of the forked opening (93c) on the rear side of the holding plate (93).
It is configured so that the work of collecting the film cut pieces (45a) by the method can be performed smoothly and stably.

As shown in FIGS. 6 to 7, the input shaft (94) of the planted mission case (35) is connected to the hexagonal planted drive shaft (95) through the transmission chain (96) and the tractor (96). The drive shaft (95) is connected to the PTO shaft of 1) via the input shaft (97) and the bevel gear (98) connected to the planted transmission shaft (99) via the transmission chain (100). Attach the sprocket (103) of the planted output shaft (102) of the mission case (35) to the chain (10) of the sprocket (101) of the planted drive shaft (41).
4) while interlocking with each other, the counter shaft (106) provided in the counter case (105) on the left side of the main body frame (10a) of the planting part (10) and the drive shaft (95) are connected to the transmission belt (107). Through the water pump (5
0) The pump shaft (108) and the counter shaft (106) are interlockingly connected via the transmission belt (109),
Cutting device (46) and recovery device (4) with PTO output
7) and so on are respectively driven.

The pickup belt (70a) (70
Although b) has a circular cross-section, it may have an even polygonal shape to form irregularities on the surface.

This embodiment is constructed as described above, and a general multi-film (4) covering the upper surface of the ridge (A) is used.
When cutting 5), the diameter of the injection nozzle (51) is set to about 0.3 mm, and the support height of the injection nozzle (51) is set to about 5 mm.
15 cm, water pressure of the injection nozzle (51) is about 200 kg
/ Square centimeter, and by injecting high-pressure water of about 4.5 cc per share from the injection nozzle (51),
A hole (D) having a diameter of about 5 cm can be formed in the mulch film (45), and irrigation can be performed at the same time when the hole (D) is formed to promote the survival of transplanted seedlings. By mixing the chemicals into the water in the water tank (49), fertilization or disinfection can be performed at the same time when the hole (D) is formed, and a small hole is formed without making a large incision in the mulch film (45) during the crop growth. While the fertilization or disinfection can be performed only by itself, the spray nozzle (51) is supported in a non-contact manner with respect to the multi-film (45) as compared with the conventional cutting using a heater. There is no effect due to, and even if soil adheres, there is no effect by blowing it off, no odor or smoke is generated, there is almost no effect even if the support height and angle of the injection nozzle (51) are changed, Others are multi-film (45) to no problem even if adhered rainwater, also those having advantages such preheating time is unnecessary.

After cutting the film (45),
The film cutting piece (45a) is attached to the pickup belt (70
Only the cut piece (45a) is quickly and surely picked up by (a) (70b) and collected in the container (72). Even if foreign matter or the like is caught and picked up, it will be damaged or have high torque. Works well without.

[0025]

EFFECTS OF THE INVENTION As is clear from the above examples, according to the present invention, a seedling planting section (10) for transplanting a seedling (A) by a seedling planting nail (17) and a high pressure by a pressure pump (50). The fluid is sprayed on the mulch film (45), and the film (4
5) A jetting nozzle (51) for cutting, and a collecting device (4) for collecting a cut piece (45a) of the mulch film (45).
7), and a seedling planting part (10) equipped with a pressure pump (50) is provided at the rear of the traveling vehicle (1), and a liquid injection tank (49) is provided at the front of the traveling vehicle (1). At the same time, the injection nozzle (51) and the injection control valve (52) are placed in front of the claws (17) with seedlings, and the recovery device (47) is connected to the injection nozzle (5).
Since it is arranged between 1) and the nail with planting (17),
A high-pressure fluid such as water is sprayed on the surface of the mulch film (45) to easily form the hole (D) for transplantation in a short time, and in this case, the sprayed water serves as irrigation water for the transplant seedling (A). While facilitating survival and the like, the film cut piece (45a) after forming the hole (D) for transplantation is surely removed by the collecting device (47) until seedling planting is performed, and the transplanted seedling ( It is possible to enable good planting and growth of A).

Further, the seedlings (A) are attached by the nails (17) with the seedlings.
(10) for transplanting the seeds, a spray nozzle (51) for spraying a high-pressure fluid onto the mulch film (45) to cut the film (45), and a cut piece (45a) of the mulch film (45). And a recovery device (47) for recovering
The film is cut by lowering the nozzle swing mechanism (59) that swings the jet nozzle (51) to cut the film (45) into a predetermined shape, and the collecting units (70a) and (70b) of the collecting device (47). Recovery vertical movement mechanism (9
0) and the drive mechanism (19) of the nail (17) with seedlings are interlocked with each other to synchronize the operation timing of cutting and collecting with the operation timing of planting, so that the drive structure is simplified. In addition to the above, it is possible to improve work efficiency and work accuracy by eliminating the need for separately adjusting the timings of the cutting and collecting operation and the planting operation.

Further, a pair of pickup belts (70a) (70b) for sandwiching and transporting the cut pieces (45a) of the mulch film (45) are arranged in a front and rear direction substantially orthogonal to the traveling direction of the traveling vehicle (1). And these belts (70a)
Since the front end pick-up portion of (70b) is made to project from the front side to the film side from the front side with respect to the traveling direction, the cutting piece (45
Only a) is picked up securely and conveyed to a predetermined position, and a cutting piece (4
There is a remarkable effect that the transport removal of 5a) can be performed.

[Brief description of drawings]

FIG. 1 is an overall side view.

FIG. 2 is a side view of a planting part.

FIG. 3 is a plan view of a planting part.

FIG. 4 is a side view of a planting part.

FIG. 5 is a rear view for explaining the planting section.

FIG. 6 is a plan view of a planted input drive unit.

FIG. 7 is a side view of a planted input drive unit.

FIG. 8 is a side view for explaining a planting claw portion.

FIG. 9 is a rear view of the cutting unit.

FIG. 10 is an explanatory plan view of a cutting portion.

FIG. 11 is a side view of the recovery unit.

FIG. 12 is an explanatory plan view of a film pressing plate portion.

FIG. 13 is an explanatory diagram of the operation of the recovery unit.

FIG. 14 is an explanatory diagram of an injection valve unit.

FIG. 15 is an explanatory diagram showing a cut state.

[Explanation of symbols]

 (1) Tractor (traveling vehicle) (10) Seedling planting part (17) Seedling planting claw (19) Drive mechanism (45) Film (45a) Cut piece (47) Collection device (49) Tank (50) Pump ( 51) Injection Nozzle (52) Valve (59) Cam (Nozzle Swing Mechanism) (70a) (70b) Belt (Recovery Section) (90) Cam (Recovery Vertical Movement Mechanism) (A) Seedling (D) Hole

Claims (3)

[Claims] 1. A seedling planting section for transplanting seedlings with a nail for planting seedlings, a spray nozzle for spraying a high-pressure fluid by a pressure pump onto the multifilm to cut the film, and a cut piece of the multifilm. A seedling planting part equipped with a recovery device and equipped with a pressure pump is arranged at the rear part of the traveling vehicle, and a liquid injection tank is arranged at the front part of the traveling vehicle. A multi-film cutting device for a seedling transplanter, characterized in that a collecting device is arranged in front of the spray nozzle and a nail for attaching seedlings. 2. A seedling planting section for transplanting seedlings with a nail for planting seedlings, a spray nozzle for spraying a high-pressure fluid onto the multi-film to cut the film, and a recovery device for recovering cut pieces of the multi-film. A nozzle swing mechanism that swings the injection nozzle to cut the film into a predetermined shape, and a collection up-and-down movement mechanism that lowers the collection unit of the collection device to collect the film cut pieces. By interlocking the drive mechanism,
A multi-film cutting device for a seedling transplanter, characterized in that the cutting and collecting operation timing is synchronized with the planting operation timing. 3. A pair of pickup belts for sandwiching and transporting cut pieces of mulch film are arranged in the front and rear in a direction substantially orthogonal to the traveling direction of the traveling vehicle, and the front end pickup portions of these belts are arranged from the front side in the traveling direction. A multi-film cutting device for a seedling transplanter, characterized in that the rear side is configured to project to the film side.