JPH04148608A - transplant machine - Google Patents

Abstract

PURPOSE:To obtain a transplantation machine capable of surely transplanting a vine seedling such as sweet potato seedling by providing a pressing disk and a clamping disk for clamping a seedling therebetween, attaching a pair of insertion claws to the clamping disk, providing a driving mechanism to vertically protrude or retreat the insertion claws at the transplantation position and clamping the base of a seedling with the insertion claws. CONSTITUTION:A seedling B is supplied to the seedling supplying region A of a transplantation mechanism 7 and clamped between a clamping disk 12 and a pressing disk made of an elastic material. The base part of the seedling is clamped between a pair of insertion claws (18), 19 and bent with a bending mechanism 20. When the seedling reaches the transplantation position C, the insertion claw pair is lowered by a driving mechanism 22 to thrust the seedling into a ridge and one of the insertion claws 19 is opened by an opening mechanism 21.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a transplanting machine used for transplanting sweet potato tubes and the like.

(Prior Art) Many types of field transplanters have been proposed and put into practical use depending on the type of field crops.

For example, in front of the seat is a horizontally rotating planting disk with a number of holder-type, tweezers-type, etc. planting claws installed in the circumferential direction.
After the worker feeds one seedling to each planting claw on the planting disc, when the planting disc reaches the lower planting position by rotating the planting disc, the worker feeds the seedling directly into the field furrow. There are some that use a semi-automatic forced planting method (see New Edition Agricultural Machinery Handbook, published by Corona Publishing, p. 504).

(Problem to be Solved by the Invention) Conventional transplanters of this type simply hold the seedlings between the planting claws, so if vine seedlings such as sweet potato seedlings are used for transplanting, the rotation of the planting disk is difficult. Due to this, there were problems such as the posture of the seedlings changing significantly, making it virtually impossible to transplant vine seedlings.

Therefore, conventionally, the transplantation of vine seedlings such as sweet potato seedlings had to be done manually, in which the worker drilled holes in the top of the ridge, inserted the seedlings one by one into the holes by hand, and then pressed them down. I didn't get it. For this reason, it took 30 hours (per person) to plant each 10 acres, resulting in extremely poor work efficiency, and the planting conditions varied greatly among individuals. Furthermore, this work was extremely hard work, as it had to be done with the worker bent at the waist.

In view of this, an object of the present invention is to provide a transplanter suitable for transplanting vine seedlings such as sweet potato seedlings.

(Means for Solving the Problems) The first invention is equipped with a rotary planting mechanism 7 in front of the seat 5, and allows an operator to supply seedlings B to the planting mechanism 7 and plant them. In the transplanting machine, a clamping disc 1 is attached to the planting mechanism 7.
2 and the clamping disc 12 on the upper side.
A holding disc 13 made of an elastic material is provided to press and hold the holding disc 12 against the holding disc 12 side up to the lower planting position C, and the holding disc 13 is rotatable together around the horizontal axis 9. A plurality of pair of insertion claws 18 and 19 are provided in the circumferential direction to sandwich the base of the seedling B supplied between the plate 12 and the holding disc 13 so as to be movable in the radial direction of the disc. A drive mechanism 22 is provided for moving the insertion claws 18, 19 up and down.

In addition to the means of the first invention, the second invention includes a claw release mechanism 21 that opens one of the insert claws 19 to the side when the pair of insert claws 18 and 19 descends downward at the planting position. It is something that

In addition to the means of the first or second invention, the third invention is provided with a bending machine fj120 for laterally bending the base end side of the seedling B held by a pair of insertion claws 18 and 19. be.

In addition to the means of the third invention, the fourth invention provides a recess 2 in which the bent portion of the seedling B engages with the insertion claw 19 on the side of the folded seedling.
5.

(Function) The seedling B is supplied at the upper part of the planting mechanism 7 and is held between the holding disk 12 and the presser circle ll113, and the base of the seedling B is held between the pair of insertion claws 18 and 19. When the seedling B reaches the planting value 1c, the drive mechanism 22 lowers the pair of insertion claws 18 and 19 to insert the seedling B into the ridge. Therefore,
The posture of the seedling B is always constant, and even vine seedlings such as sweet potato can be reliably transplanted.

After the seedling B is sandwiched between the pair of insert claws 18 and 19, its base end side is bent by the bending mechanism 20 and engaged with the recess 25 of the insert claw 18. Therefore, the seedling B does not come off the insertion claws 18, 19 during insertion, and the seedling B can be reliably inserted to a substantially constant depth.

After inserting it into the ridge, one of the insertion claws 19 is released by the release mechanism 21. Therefore, the seedling B will not fall out together with the insert claws 18 and 19.

(Example) Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

4 and 5 show an outline of the transplanter according to the present invention,
l is the machine frame, which is equipped with a front wheel 2 and a rear wheel 3 for driving, as well as a handle 4 for changing direction at the rear end; #5 is a seat for the worker; and 6 is an engine for driving each part. in,
These are arranged one after the other at the rear of the machine frame 1.

Reference numeral 7 denotes a rotary planting mechanism disposed in front of the seat 5, which is rotatably supported by a movable frame 8 via a horizontal shaft 9. The movable frame 8 is pivotally supported by a pin 10 at the front end of the machine frame 1 so as to be vertically movable, and is supported by the machine frame 1 by an adjustment mechanism 11. The planting mechanism 7 consists of a holding disc 12 made of iron plate and a holding disc 13 made of elastic material such as rubber, which are arranged side by side on a horizontal axis 9 so as to be rotatable. The supplied seedlings B are held between the holding disc 12 and the presser disc 13, and the seedlings B are moved to the lower planting position C.
It is now possible to send up to Note that the presser disc 13 is separated laterally from the clamping disc 12 on the side of the seedling supply area A, and between the seedling supply area A and the planting position C, the presser disc 13 holds the seedling B on the clamping disc 12 side. The outer peripheral edge portion is guided by a number of shaping rollers 14 so as to press it against the surface. 15 is the bonnet, 1
6 is a suppression wheel, and 17 is a seedling stand.

As shown in FIGS. 1 to 3, the clamping disc 12 has a pair of insertion claws 18 and 19 that clamp the base of the seedling B supplied between the clamping disc 12 and the holding disc 13. , a bending mechanism 20 for laterally bending the base end side of the seedling B held by the insertion claws 18.19, and the insertion claws 18.19 at the planting position C.
A plurality of opening mechanisms 21 are provided at equal intervals in the circumferential direction to open one of the insertion claws 19 to the side when the insertion claw 19 is lowered downward, and on the movable frame 8 side, the insertion claws 19 are opened at a planting value tc. A drive mechanism 22 is provided for moving the 18 and 19 up and down.

As shown in FIGS. 6 to 9, the pair of insertion claws 18 and 19 have trapezoidal claw portions 23 and 24 at their tips.

The claw portion 24 is larger than the claw portion 23, and has a recess 2 at its tip that engages with the bent portion when the seedling B is bent laterally.
5 is formed. Note that this recess 25 is formed into an arcuate surface as shown in FIG.

Of the pair of insert claws 18 and 19, one insert claw 18 is fixed to the slider 26, and the other insert claw 19 is pivoted to the slider 26 with a pin 27 so as to be able to swing open and close. It has 28. The rollers 28 are movable along a fixed guide rail 29 and a movable guide rail 30 for closing the claws fixed to the movable frame 8. The guide rails 29 and 30 are both provided in a perfect circle concentric with the horizontal axis 9, and the movable guide rail 30 is pivoted to the movable frame 8 with a pin 31 at one end, and the other end is pivoted to the movable frame 8 with a pin 31. The end is urged toward the holding disc 12 by a spring 34 interposed between the fixed bracket 32 and a spring case 33. The fixed bracket 32 is fixed to the movable frame 8. The slider 26 is slidably supported by a guide member 35 attached to the side surface of the holding disc 12 in the radial direction, and therefore, the pair of insertion claws 18 and 19 move in and out in the radial direction along the guide member 35. It is free. A roller 36 is provided at the inner end of the slider 26, and this roller 36 is guided by a guide rail 37 so as to be freely movable. The guide rail 37 is attached to the movable frame 8 concentrically with the horizontal axis 9, and a lower part of the guide rail 37 forms an elevating part 38 separated from the other part.

The bending machine 1120 has an L-shaped bending rod 39, and this bending rod 39 is fixed to a support plate 40 as shown in FIG. In the support Fi40, the bending rod 39 is the insertion claw 1
It is pivotally attached to the bracket 42 of the inner clamping Fi 12 by a pin 41 so as to swing from side to side on the outer side of 8.19, and is connected to an arm 44 via a rod 43. The arm 44 is pivotally connected to the clamping disk 12 by a pin 45, and has a roller 46 at the tip. In the section of the movable guide rail 30 that includes the seedling supply area A, the roller 46 is attached to the guide portion 30 on the outer periphery of the movable guide rail 30.
between the seedling supply area A and the planting position C, and guided by a bending guide rail 47 attached to the movable frame 8 along the fixed guide rail 29 as shown in FIG. be done.

The opening mechanism 21 is constituted by an inclined plate 48, and when the pair of insertion claws 18 and 19 descend to approximately the lower limit along the guide member 35 at the planting value 1c, the roller 28 is guided by the inclined plate 48 and the insertion claws 19 is designed to swing in the opening direction.

The drive mechanism 22 includes an elevating section 38 , an elevating arm 50 having the elevating section 38 at its tip and pivoted to the movable frame 8 with a pin 49 , and an air cylinder 51 interposed between the elevating arm 50 and the bracket 32 . , and a return spring 52 that urges the lifting arm 50 upward. Air cylinder 5
1 is pivotally attached to the bracket 32 by a pin 53.

The tip of the lifting arm 50 is guided up and down by a fixed guide member 54 fixed to the movable frame 8. Note that the fixed guide rail 29 has a fixed guide plate 5 corresponding to the planting position C.
5 is provided and is configured to guide the roller 28 so that when the roller 28 disengages downwardly from the fixed guide rail 29, the bayonets 18, 19 do not open immediately.

Next, the operation of each part during porting work will be explained.

During the transplanting work, a worker sits on the seat 5 and supplies the seedlings B one by one to the planting mechanism 7. At this time, hold the seedling B with the base side facing up, and after pinning its lower end from above the seedling supply area A and placing it on the presser disk 13, place the seedling B on the presser disc 13.
19. Sandwich the base side of seedling B between the two. A pair of insert claws 18.1
9 is in a closed state in the seedling supply area A, but since the claw part 24 of the insertion claw 19 is large, if you push this claw part 24 in any direction (in the direction of arrow C in FIG. 8), it will resist the spring 34. Since the movable guide rail 30 rotates around the pin 31 in the direction indicated by the arrow b in FIG. 2, the seedling B can be held by widening the distance between the pair of insertion claws 18 and 19 with only one hand.

In this way, attach the base of seedling B to a pair of insertion nails 18°19
When sandwiched between them, as the clamping disc 12 and the presser disc 13 rotate (in the direction of arrow C), the presser disc 13 is pressed toward the clamping disc 12 by the group of shaping rollers 14, so that the seedlings B The seedlings are held in a substantially radial direction by these holding disks 12 and presser disks 13, and are sent to the lower planting position C.

On the other hand, when the pair of insertion claws 18 and 19 sandwiching the seedling B cross the seedling supply area A, the roller 46 of the bending mechanism 20 is guided by the guide rail 47 and moves radially inward, so that the arm 44 It swings around the pin 45 and pulls the support plate 40 via the rod 43. Therefore, the support plate 40
This support plate 40 rotates in the direction of arrow C in FIG.
The bending rod 39 fixed to the inserting claws 18 and 19 pushes the proximal end of the seedling B protruding outward from the pair of insert claws 18 and 19 in the direction of arrow C, thereby causing the proximal end of the seedling B to press into the insert claws as shown by the arrow e. Fold into an L shape towards the 19th side. Then, the bent portion of the seedling B engages with the recess 25 of the claw portion 24, making it difficult for the seedling B to come off from the insertion claw 18, 19.

When the pair of insertion claws 18 and 19 holding the seedling B reach the lower planting position C, the roller 36 of the slider 26 is positioned on the elevating part 38 of the guide rail 37. Then, air is supplied to the cylinder 51 to cause it to extend, and the elevating arm 50 is lowered around the pin 49. Then, the elevating part 38 moves downward 11 (as indicated by the f arrow), so the slider 2
6 descends downward along the guide member 35, and a pair of insertion claws 18 and 19 insert the seedling B into the upper surface of the ridge. At this time, since the seedling B is bent into an L-shape and engaged with the recess 25, there is no possibility that the seedling B will come off the pair of insertion claws 18 and 19 or shift upward due to insertion resistance of the soil. There is no constant planting, and the planting can be reliably inserted to a certain depth. In addition, since the presser disk 13 comes off the shaping roller 14 on the near side of the planting position C, the seedling B is held in a substantially vertical state while being lightly pinched between the pincher disk 12 and the presser disk 13. ing. Therefore, a pair of insertion claws 18.
When the seedling 19 descends and inserts the seedling B into the TIED, the seedling B remains in a substantially vertical state and is pulled out downward.

When the pair of insertion claws 18 and 19 are lowered to near the lower limit, the roller 28 comes off the guide plate 55 and hits the inclined plate 4B, as shown in FIG. 11, and is pushed in the opening direction by the inclined plate 48, so that the insertion claws opens around the pin 27, releasing the grip on the seedling B. Next, the air in the cylinder 51 is released (and the lifting arm 50 is pulled upward by the spring 52, so that the pair of insertion claws 18 and 19 are removed from the seedling B and come out upward, and the lifting part 38 is moved from the guide rail. It fits in 37.

Thereafter, by repeating the same operation, the seedlings B can be successively transplanted onto the ridges as shown in FIG. 12. In this way, vine seedlings such as sweet potato can be reliably transplanted, and in particular, since the planting is carried out mechanically, the planting depth can be maintained at a substantially constant level and the planting can be done without variation, and the work efficiency can be significantly improved.

Note that the ridges may be covered with a mulch film in advance, and the seedlings B may be planted by breaking through the film when the insert claws 18 and 19 descend.

Further, the drive mechanism 22 may utilize a cam.

The clutch, brake, and derailing mechanism may be operated by the operator's feet, and the main clutch and change lever may be operated manually.

(Effect of the invention) According to the first invention, the planting mechanism 7 includes the clamping disc 12,
A holding disk 13 made of an elastic material that presses and holds the seedlings B supplied between the holding disk 12 and the holding disk 12 at the upper side up to the planting position IC at the bottom is connected to the horizontal axis 9. A pair of insertion claws 18 and 19 are provided on the clamping disc 12 so as to be able to rotate integrally around the clamping disc 12 and grip the base of the seedling B supplied between the clamping disc 12 and the presser disc 13 in the radial direction of the disc. A plurality of insert claws 18 and 19 are provided in the circumferential direction so that they can move in and out at planting position C, and a drive mechanism 22 is provided to move the insert claws 18 and 19 up and down, so that vine seedlings such as seedlings can be reliably transplanted. can.

Further, in the second invention, a pair of insertion claws 18.
Since a claw release mechanism 21 is provided that opens one of the insertion claws 19 to the side when the insertion claw 19 moves downward, the seedling B will not fall out when the insertion claws 18 and 19 are pulled out after the seedling B is inserted. .

Furthermore, in the third invention, since the bending mechanism 20 is provided to bend the base end side of the seedling B held by the pair of insertion claws 18 and 19 laterally, the seedling B may be bent due to soil resistance etc. when inserted. The planting can be done at a constant depth without coming off the pair of insert claws 18 and 19.

Moreover, according to the fourth invention, the insertion nail 1 on the side where the seedling is bent
9 is provided with a recess 25 in which the bent portion of the seedling B engages, so that the prevention of the seedling B from coming off is further ensured.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the planting mechanism, FIG. 2 is a sectional view of the same, FIG. 3 is a sectional view of the same,
Figure 4 is a side view of the whole, Figure 5 is a plan view of the same, Figure 6 is a front sectional view of the insertion claw, Figure 7 is a side view of the same, Figure 8 is a plan view of the same, and Figure 9 is the insertion. A sectional view of the claw, Fig. 10 is a sectional view of the guide rail, Fig. 11 is an explanatory view of the insertion operation, and Fig. 1
Figure 2 is a sectional view of the planted state. 5... Seat, 7... Planting mechanism, 12... Holding disk, 13... Pressing disk, 18.19... Insert claw, 2
0...Bending mechanism, 21...Opening mechanism, 22...
Drive mechanism, A... Seedling supply area, B... Seedling, C... Planting position.

Claims (1)

[Claims] (1) A rotary planting mechanism (7) is provided in front of the seat (5), so that an operator can supply seedlings (B) to the planting mechanism (7) and plant them. In the transplanter, the seedlings (B) supplied between the clamping disc (12) and the clamping disc (12) on the upper side are transferred to the planting mechanism (7) at the lower planting position ( C) is provided with a presser disk (13) made of an elastic material that is pressed and clamped on the side of the clamping disk (12) so as to be integrally rotatable around the horizontal axis (9), and the clamping disk (12) is provided with: A pair of insertion claws (18) and (19) that clamp the base of the seedling (B) supplied between the clamping disc (12) and the holding disc (13) are movable in the disc radial direction. A transplanting machine characterized by being provided with a plurality of driving mechanisms (22) provided in the circumferential direction and for moving the insertion claws (18) and (19) up and down at the planting position (C). (2) The feature is that a claw release mechanism (21) is provided that opens one of the insert claws (19) to the side when the pair of insert claws (18) and (19) descend downward at the planting position. The transplanting machine according to claim 1. (3) Claim 1 or 2 characterized in that a bending mechanism (20) for bending the base end side of the seedling (B) held by the pair of insertion claws (18) and (19) laterally is provided. The transplanter described in . (4) The transplanting machine according to claim 3, characterized in that the insertion claw (19) on the folding side of the seedling is provided with a recess (25) in which the folded portion of the seedling (B) engages.