JPH0729785Y2 - Structure of the vegetable seedling extraction part of the vegetable transplanter - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a vegetable seedling take-out structure of a vegetable transplanter.

(B) Conventional Technology Conventionally, as an example of a vegetable transplanter, a self-propelled transplanter main body is provided with a vegetable seedling transplanter,
A vegetable seedling transfer section for placing the vegetable seedlings in a freely transferable manner, and a vegetable seedling takeout section for taking out the vegetable seedlings transferred from the transfer section,
A vegetable seedling guide part that receives vegetable seedlings from the take-out part and guides the vegetable seedlings to the seedling transplant concave part in the field, and a front transplant concave part is formed in the field before the vegetable seedling is guided from the guide part. Some of them are composed of a recessed portion for transplanting seedlings.

The vegetable seedling take-out portion supports the nail for holding the vegetable seedling and the nail so as to move back and forth, and swings the nail from the seedling take-out position of the vegetable seedling transfer portion to the seedling receiving position of the vegetable seedling guide portion. It is composed of a freely movable arm and an arm swinging mechanism that swings the arm.

(C) Problems to be solved by the device However, in the vegetable seedling take-out section of the above-mentioned vegetable transplanter, when picking up the vegetable seedling transferred from the vegetable seedling transfer section by the nail, the vegetable seedling is strongly held by the nail. While there is a risk of damaging the vegetable seedlings, if the vegetable seedlings adhere to the vegetable seedling transfer section when grasped weakly, there is a problem that the vegetable seedlings cannot be taken out reliably.

(D) Means for Solving the Problems In the present invention, therefore, a self-propelled transplanter body is provided with a vegetable seedling transplanting device, and the vegetable seedling transplanting device is provided with a vegetable seedling take-out section for taking out the loaded vegetable seedlings. In a vegetable transplanter capable of sequentially transferring the vegetable seedlings taken out by the taking-out section to the field, the vegetable seedling taking-out section includes a claw for holding the vegetable seedling, an arm for movably supporting the claw, and the arm. It does not provide a vegetable seedling take-out part structure of a vegetable transplanter characterized by comprising an arm swinging mechanism for swinging the claw, and further, reducing the opening of the claw in conjunction with the backward movement of the claw. It is what

Another feature is that a pressurized air jet is provided at the tip of the claw so that the pressurized air can be jetted from the jet in conjunction with the backward movement of the claw that has reached the maximum.

(E) Action / Effect In the present invention, since the opening of the nail decreases in conjunction with the backward movement of the nail, the nail should be pierced around the vegetable seedling with the nail fully advanced. For example, since the claw moves backward while decreasing the opening, the claw reliably grips the vegetable seedling, the mistake in picking up the vegetable seedling is reduced, and a reliable planting operation of the vegetable seedling can be performed.

Further, since the pressurized air is ejected from the pressurized air outlet provided at the tip of the nail in conjunction with the backward movement of the nail, the vegetable seedlings attached to the vegetable seedling transfer section are easily separated, and the vegetable seedlings are easily separated. Can be taken out reliably.

(F) Embodiments To explain the embodiments of the present invention in detail with reference to the drawings, (A) shown in FIGS. 1 and 2 is a vegetable seedling transplanter according to the present invention, which is a self-propellable transplanter main body. A vegetable seedling transplanting device (2) is connected in front of (1).

The transplanter body (1) has wheels (4) (4 ') on the lower left and right sides of a mission case (3) extending in the vertical direction.
The front end of the handle (5) extending rearward and upward is attached to the upper end of the mission case (3), and is mounted on the prime mover support frame (6) projecting rearward from the lower rear surface of the mission case (3). A prime mover section (7) is mounted, and a transmission mechanism (8) is interposed between the prime mover section (7) and the mission case (3). (4a) and (4'a) are axles,
(9) is a battery, and (10) is a main body side connecting part for detachably connecting the vegetable seedling transplanting device (2).

In addition, the vegetable seedling transplanting device (2) has the above main body side connecting portion (1
The transplantation device side connection part (11) is detachably connected to 0), and the left and right support frames (12) and (12 ') are connected from the connection part (11).
The projecting ends are extended to the left and right sides, and the projecting ends are extended forward to form a horizontal frame (13) between the front ends of the frames (12) and (12 '). 13)
The idler wheels (14) and (14 ') are attached to the left and right ends of the, respectively.

Moreover, a pump case (16) containing a pressurizing pump (15) is placed between the left and right support frames (12) and (12 '), and the vegetable seedling (B) is placed on the pump case (16). ) Is placed and is intermittently transferred backward (20)
Immediately after the transfer section (20), a vegetable seedling take-out section (30) for taking out the vegetable seedlings (B) transferred from the transfer section (20) one by one is provided at the transplanting device side connection section (11). ) Is placed on the above, and the vegetable seedling (B) is received from the taking-out section (30) immediately below the taking-out section (30) and the vegetable-seedling transfer section (20), and the vegetable seedling ( B) is a recess (G ') for transplanting seedlings of the ridge (G)
The vegetable seedling guide section (40) that guides you up to the take-out section (30)
The guide section (40) is arranged so as to be supported by the guide section (40) and immediately before the lower end section of the guide section (40), before the vegetable section (B) is guided by the guide section (40). G ') forming the recess portion (60) for transplanting seedlings, the support frame (12) (1) (1)
It is attached by hanging from 2 '), and each part (20) (30)
The operations of the (40) and (60) are sequence-controlled by a controller (not shown) so that the transplanting work of the vegetable seedlings (B) can be performed automatically and continuously.

A transmission belt (17) is wound between the passive shaft (15a) of the pressurizing pump (15) and the output shaft (3a) protruding rightward from the upper part of the mission case (3). By turning, the pressurized pump (15) can supply pressurized air to the vegetable seedling take-out section (30). (18) is a pulley.

Further, reference numeral (19) is a rolling wheel hung from the central portion between the front portions of the left and right support frames (12) and (12 ') so as to roll on the upper end surface of the ridge (G).

In the vegetable seedling transfer section (20), the driven roller (22) and the drive roller (22 ') are horizontally mounted between the left and right transfer cases (21) and (21'), and both rollers (22) and (22 '). A transfer belt (23) is wound around the transfer belt (23), the vegetable seedling container (24) is placed on the transfer belt (23), and the vegetable seedling container (24) can be transferred rearward. (25) is a tension roller,
(26) is a roller drive motor provided in the left transfer case (21), and (27) is a roller interlocking mechanism provided in the right transfer case (21 ').

Then, between the rear end portions of the left and right transfer cases (21) (21 '), the vegetable seedling container reversing roller (26') is laid horizontally, and the vegetable seedling container (24) transferred to the rear is placed. The roller (26 ') is turned over along the surface of the roller (26') so that it can be transferred forward.

In addition, the vegetable seedling container (24) has a strip-shaped body (24a) formed to have substantially the same width as the transfer belt (23), and a square pyramidal trapezoidal seedling container (24b) having a wide upper end opening. The pots (24b) are housed in the pots (24b) in an orderly manner.

In addition, the vegetable seedling take-out section (30) is connected to the transplanter side connecting section (1
The guide rail (3
2) is extended horizontally in the left-right width direction, and is attached to the left and right ends of the guide rail (30) and the left-right transfer case (21) (2).
1 ') and the left and right connecting cases (3
3) (33 ') is installed, and the left and right connecting cases (33) (3
3 '), a screw rod (34) for moving the seedling take-out body is placed horizontally in parallel with the guide rail (32) in parallel with the screw rod (3).
4) Screw the front part of the seedling take-out body (35) to the guide rail (32) and attach the rear part of the seedling take-out body (35) to the guide rail (32) so that it can slide sideways, and then insert the screw rod (34) into the normal position. In conjunction with reverse rotation,
The seedling take-out body (35) can be moved back and forth horizontally.

Moreover, the seedling take-out body (35) has the bases immediately above the upper end opening (44a) of the vegetable seedling guide portion (40) at the seedling delivery position, and the side-by-side pots (24b) transferred to the seedling take-out position (24b). ), The vegetable seedlings (B) are taken out from the pot (24b), and then returned to the base point. Reference numeral (35 ') is a drive motor for rotating the seedling take-out body moving screw rod (34) forward and backward.

Then, as shown in FIG. 3, the seedling take-out body (35) is provided with a dog-legged lever on a swing support shaft (35a) provided at the upper rear portion of the drive case (36) having a built-in seedling take-out drive motor. (35b)
Attach the middle part of the lever so that it can swing up and down, and attach the claw (3) to the tip of the lever (35b) centered on the swing support shaft (35a).
Attach the arm (38) equipped with 7), and use the lever (3
An arm swinging mechanism (39) is provided between the lower end of 5b) and the tip of the drive arm (35'b) attached to the drive shaft (35'a) of the seedling take-out drive motor. There is.

Moreover, the arm (38) includes a cylinder (38a) mounted on the upper side of the lever (35b), a piston rod (38b) mounted on the cylinder (38a) so as to be movable back and forth, and a piston rod (38b). ) Is attached to the tip of the claw mounting case (38c).

Further, the other end of each of the flexible first and second communication pipes (50) (51), one end of which is connected to the pressurizing pump (15), is connected to the front portion and the rear portion of the cylinder (38a). The piston rod (38b) is slid backward by connecting in communication and supplying pressurized air from the pressure pump (15) through the first communication pipe (50) to the front part in the cylinder (38a). Further, the piston rod (38b) can be slid forward by supplying pressurized air to the rear portion of the cylinder (38a) through the second communication pipe (51).

Further, a communication passage (52) is provided in the shaft core of the piston rod (38b), and the cylinder (38) is formed by the communication passage (52).
The a) is connected to the claw mounting case (38c).

Then, in the case (38c) for mounting the claw, the operating body (53)
Is slidably moved forward and backward, and the actuating body (53) is connected to the second communication pipe (51) from the pressurizing pump (15) → cylinder (38a).
→ It is possible to open the pawl (37) (release the gripping part) by sliding it forward with the pressurized air supplied through the communication passageway (52).

The claw (37) is a claw support lever (54) that is swingably mounted on the upper, lower, left, and right sides of the claw mounting case (38c).
(54) (54) (54) Each one side end (54a), each claw (3
7) is attached, and the other end portion (54b) of each claw support lever (54) is brought into contact with the tip projection (53a) of the actuating body (53) to cause the same actuating body (53). The pawl support lever (54) swings in conjunction with the forward movement of the claw so that the four claws (37) can be opened outward. (55) is a pawl restoring spring, and the pawl support lever (54) is provided by the spring (55).
The four claws (37) are pressed and urged so as to perform a gripping operation via.

Moreover, each claw (37) is in the shape of a hollow pipe, and the base end opening (37a) and the first communication pipe (50) are communicatively connected by the flexible third communication pipe (56) to form a pressurizing pump. Pressurized air is supplied to the cylinder (38a) from (15) to retreat the piston rod (38b), and at the same time pressurized air is ejected from the pressurized air outlet (37b) provided at the tip of each claw (37). To be able to squirt. (57) is each nail (3
7) A stopper provided midway, which serves as a stopper when the nail (37) is pierced into the vegetable seedling (B) in the seedling containing pot (24b).

With such a configuration, the arm (38) is provided with the pressure pump (15).
Cylinder (38a) through the second communication pipe (51)
By supplying pressurized air to the inside, the piston rod (38b) is moved forward, and when the piston rod (38b) is maximally extended, it is operated by the pressurized air supplied through the communication passageway (52). Four nails (37) through the body (53)
Can be opened to the maximum and released.

Here, the maximum opening of the nail (37) is the seedling storage pot (24b).
It is made slightly smaller than the inner diameter of the upper end opening of the so that the nail (37) can be pierced and held in the vegetable seedling (B) in the pot (24b). ,
By adjusting the supply of pressurized air, the same pot (24
It can be adjusted according to the inner diameter of the upper opening of b).

Further, by supplying pressurized air into the cylinder (38a) from the pressurizing pump (15) through the first communicating pipe (50), the piston rod (38b) is retracted and the third communicating pipe ( 56) Pressurized air supplied through the inside is ejected from the tip opening (37b) of each claw (37),
Moreover, each claw (37) can be held by the claw restoring spring (55).

Also, in this embodiment, four claws (37) are attached,
The number of the nails (37) is not limited to this, and may be two or three.

The arm swinging mechanism (39) is configured to extend and contract by being urged in the shortening direction by a shortening urging spring (39a), and has one end (39b) at the lower end of the lever (35b).
Are connected by a first connecting pin (39c), and the other end (39d) is connected to the tip of the drive arm (36b) by a second connecting pin (39e).

The arm swinging mechanism (39) is interlocked with the clockwise (a) rotation of the drive arm (36b) to move the arm (3
8) can be vertically swung about the swing support shaft (35a) from the seedling take-out position of the vegetable seedling transfer section (20) to the seedling receiving position of the vegetable seedling guide section (40).

Moreover, immediately before the lower side of the lever (35b), a swing range adjustment stopper (58) that can be adjusted straight ahead toward the lower side of the lever (35b) is provided, and the lever (35b) can be adjusted by the stopper (58). The forward rotation of the lower part of the arm (38) is restricted, and the upward rotation of the arm (38) can be restricted.

In this way, while the lower side of the lever (35b) is in contact with the stopper (58) and its forward rotation is restricted, the arm swings in conjunction with the rotation of the drive arm (35'b). The moving mechanism (39) extends against the urging force of the shortening urging spring (39a), while the arm (38) stops at the highest position, and the drive arm (35'b). Is reversed and the arm swinging mechanism (39) is slid rearward so that the lower side of the lever (35b) rotates rearward and the arm (38) swings downward. .

Therefore, in order to stop the arm (38) at the highest position for a certain period of time, the work of taking out the vegetable seedling (B), that is, the piston rod (38b) is extended forward and the claw (3
After piercing the vegetable seedling (B) with the gripping release state in which 7) is opened, the vegetable seedling (B) is gripped and the piston rod (38
b) shortened and the tip opening (37b) of the claw (37)
The vegetable seedling (B) is smoothly and surely taken out from the seedling storage pot (24b) by ejecting more pressurized air, and the vegetable seedling guide section (4
Can be handed over to 0).

At this time, since the stop time of the arm (38) can be adjusted by advancing and retracting the swing range adjusting stopper (58), the vegetable seedling container (24) of the vegetable seedling container (24) by the vegetable seedling transfer section (20) can be adjusted. It is possible to adjust the error due to slow transfer, etc., so that the vegetable seedling (B) can be taken out reliably.

Further, the vegetable seedling guide portion (40), as shown in FIG. 4 and FIG. 5, is a column (31) connected to the transplant device side connecting portion (11).
Attach the upper end of the guide section support (41) to the support (41)
Vertically downward, and the upper and lower front side wire support rings (42) (42 ') are attached to the upper and lower portions of the front surface of the support (41) so as to face each other vertically, and between the rings (42) (42'). The six wire rods (43) whose axes are oriented in the vertical direction are installed on the same circumference at equal intervals in the circumferential direction to form the vegetable seedling guide passages (44) inside.

The vegetable seedling guide passage (44) has an upper end opening (44a).
Is formed larger than the outer diameter of the vegetable seedling (B) passing through, and the guide diameter of the lower end opening (44b) is gradually reduced from the guide diameter of the upper end opening (44a). The outer diameter of (B) is approximately the same as the outer diameter, and the lower end opening (44
The guide diameter of b) can be adjusted by the expansion / contraction adjuster (45).

In addition, the expansion / contraction adjuster (45) has a lower wire support ring (4
The expansion / contraction adjusting ring (45a) is rotatably attached to the outer peripheral surface of 2 ') by the adjusting screw (45b), and the lower end of the six wire rods (43) is rotated by rotating the ring (45a) to guide the vegetable seedling passage. The guide diameter of the lower end opening (44b) of the guide passage (44) can be adjusted according to the outer diameter of the vegetable seedling (B) so that the guide passage (44) can be moved forward and backward in the radial direction.

Further, a shutter support bracket (46) is provided at the rear of the lower end of the guide part support body (41), and the base end of the shutter (47) is attached to the bracket (46) and the lower end opening of the vegetable seedling guide passageway (44). The bracket (44b) is elastically biased so as to be positioned immediately below (44b), is rotatably supported, and is attached to the tip of an operating arm (47b) extending from the rotation center (47a) of the shutter (47). The tip of the plunger (48a) of the drive unit (48) for shutter opening operation attached to 46) is interlockingly connected. The drive section (48) can be driven by electricity or air pressure.

Then, a recess detector (49) for detecting the seedling transplant recess (G ′) is attached to the front part of the lower end of the guide part support body (41), and the seedling transplant recess (G ′) by the detector (49). ), The control device drives the shutter opening operation drive section (48) to open the shutter (47).

With this configuration, the vegetable seedlings (B) introduced into the vegetable seedling guide section (40) can be dropped and guided in the vegetable seedling guide passageway (44). At this time, the recess detector (4)
As long as 9) does not detect the recess for moving seedlings (G '), the lower end opening (44b) of the vegetable seedling guide passageway (44) has a shutter (4).
Since it is blocked by 7), the vegetable seedling (B) is supported on the shutter (47), and the shutter (47) is opened simultaneously with the detection of the seedling transplanting recess (G ') by the detector (49). By operating, the vegetable seedling (B) can be surely dropped into the recess (G ′).

In addition, as shown in FIG. 6, the recessed portion forming portion (60) for transplanting seedlings is provided with a recessed portion supporting bracket (60), which is provided on a stay (61) suspended in the middle of the left and right support frames (12) and (12 '). The base end of 62) is pivotally supported by a pivot pin (63) so as to be vertically swingable, and is urged upward by an urging spring (64), and on the upper end surface of the base portion of the bracket (62), The upper swinging restricting tool (65) attached to the stay (61) is brought into contact with the bracket (62) so that the bracket (62) is held substantially horizontally. Forming part (60)
Is capable of swinging only rearward against the forward biasing of the biasing spring (64).

As shown in FIGS. 6 and 7, the recess forming portion (60) includes a recess forming drive motor (66) provided on the upper surface of the bracket (62) and a portion directly below the motor (66). An outer cylinder (67) having an upper end attached to the bracket (62) and a lower end extending downward, and an inner cylinder (68) fitted in the outer cylinder (67) so as to be vertically slidable, The spindle-shaped recess forming device (69) attached to the lower end of the inner cylinder (68) and the drive shaft (66a) of the motor (66) and the upper end are interlockingly connected to each other, and the inner cylinder (6
8) is provided with an internal thread portion (68a) and a threaded screw rod (70), and a rotation restricting ball (71) fixed to the upper outer peripheral surface of the inner cylinder (68) is attached to the outer cylinder (68). It is fitted into the rotation restricting groove (72) provided on the inner peripheral surface of 67).

Further, as shown in FIG. 7, the rotation restricting groove (72) includes a vertical groove (72a) provided from the upper end to the lower end on the inner peripheral surface of the outer cylinder (67) and the lower end of the inner peripheral surface. It is provided along the peripheral surface in the part,
The vertical groove (72a) and the lateral groove (72b) communicate with the lower end of the vertical groove (72a).

With this configuration, when the recess forming drive motor (66) is driven to rotate the screw rod (70) in the forward direction, the screw rod (7) is rotated.
The inner cylinder (68) screwed to (0) slides downward without rotation by the rotation regulating ball (71) fitted in the vertical groove (72a), and the ball (71) is horizontally grooved (72b). , The rotation restriction of the inner cylinder (68) is released by the ball (71), and the inner cylinder (68) and the recess forming device (69) attached to the lower end of the inner cylinder (68) are screwed. It rotates integrally with the rod (70), and at this time, the recess forming device (69) is adapted to rotate while being fitted in the ridge (G).

Moreover, the forward rotation of the recess forming unit (69) is performed for a set time, for example, when the seedling transplanting recess forming unit (60) swings backward due to the resistance of the ridge (G) due to the forward movement of the machine body, and thereafter, The recess forming device (69) is rotated in the reverse direction to stop due to overload.

With such a configuration, it is possible to smoothly form the recess (G ′) for transplanting seedlings that is resistant to collapse without stopping the main body (1) of the transplanter, and widen the recess (G ′) in the front-rear direction. The seedling (B) can be easily introduced.

Moreover, the intervals between the seedling transplanting recesses (G ′) can be made constant, and the intervals between the vegetable seedlings (B) transplanted in the recesses (G ′) can be made constant.

Furthermore, it is not necessary to provide a detector for detecting the advance / retreat of the recess forming device (69), and the manufacturing cost can be reduced accordingly.

Moreover, the control device controls the start-up of the recess forming drive motor (66) so as to be interlocked with the operation of the vegetable seedling take-out section (30).

In addition, as a measure for covering the surface of the ridge (G) with a film, a blade for cutting a film is attached to the tip of the recess forming device (69), or a heating wire for melting the film by heat is attached. You can also

The embodiment of the present invention is configured as described above, and according to this embodiment, the following operational effects are produced.

In other words, the opening of the claw (37) increases in conjunction with the advance of the claw (37) and decreases in conjunction with the backward movement of the claw (37). Then, if the nail (37) is pierced around the vegetable seedling (B), the nail (37) retracts while decreasing the opening, so the nail (37) surely fixes the vegetable seedling (B). It can be gripped and reduces mistakes in taking out the vegetable seedlings (B), and is linked with the backward movement of the claws (37) to be added from the pressurized air ejection port (37b) provided at the tip of the claws (37). Since the compressed air is ejected, the vegetable seedling (B) attached to the seedling storage pot (24b) of the vegetable seedling transfer section (20) can be easily separated, and the vegetable seedling (B) can be reliably taken out.

Further, when the vegetable seedling (B) taken out from the vegetable seedling transfer section (20) is delivered to the vegetable seedling guide section (40), if the nail (37) holding the vegetable seedling is operated to move forward, Since the opening degree of (37) is increased, the vegetable seedling (B) can be easily separated from the nail (37) and smoothly delivered to the vegetable seedling guide portion (40).

[Brief description of drawings]

FIG. 1 is a side view of a vegetable transplanter according to the present invention. FIG. 2 is a plan view of the vegetable transplanter. FIG. 3 is a side sectional view of the vegetable seedling take-out section. FIG. 4 is a side sectional view of the vegetable seedling guide portion. FIG. 5 is a sectional view taken along line I-I of FIG. 4. FIG. 6 is a side sectional view of a seedling transplanting recess forming portion. FIG. 7 is an explanatory view of the rotation regulating groove. (A): Vegetable transplanter (B): Vegetable seedling (G): Ridge (G '): Seedling transplant recess (1): Transplanter main body (2): Vegetable transplanter (20): Vegetable seedling transfer section ( 30): Vegetable seedling take-out part (40): Vegetable seedling guide part (60): Seedling transplant recessed part

Claims (2)

[Scope of utility model registration request] 1. A self-propelled transplanter main body (1) is provided with a vegetable seedling transplanting device (2), and the vegetable seedling transplanting device (2) takes out the loaded vegetable seedlings (B) from the vegetable seedling extracting section ( 30),
In a vegetable transplanter capable of sequentially transferring the vegetable seedlings (B) taken out by the taking-out section (30) to the field, the vegetable seedling taking-out section (30) includes a claw (37) for gripping the vegetable seedling (B), It is composed of an arm (38) that supports the pawl (37) to move back and forth, and an arm swinging mechanism (39) that swings the arm (38). A structure for extracting vegetable seedlings from a vegetable transplanter, which is characterized in that the nail (37) is reduced in conjunction with the retreat. 2. A pressurized air jet port (37) at the tip of the claw (37).
2. The vegetable transplanting machine according to claim 1, wherein b) is provided so that pressurized air can be ejected from the ejection port (37b) in conjunction with the backward movement of the claw (37) that has advanced to the maximum extent. The structure of the vegetable seedling extraction section.