JPS6314578Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a seedling feeding mechanism in a rush planting device, and in particular, the present invention relates to a seedling feeding mechanism in a rush planting device, and in particular, a method for taking out seedlings from above the seedling mounting stand to take out mother plants placed on a seedling mounting stand. This relates to a seedling feeding mechanism that moves the seedlings toward the mouth.

[Conventional technology]

Igusa seedlings are tightly connected by underground rhizomes in a roughly circular shape with a diameter of about 8 to 10 centimeters, and these mother plants are compressed and loaded without any gaps into the seedling stand of a conventionally known rice transplanter. A method is proposed by the applicant. This seedling stand usually has a rectangular planar shape, is inclined on one side in the longitudinal direction, and is reciprocated with a constant stroke in the left and right directions. A seedling planting body that moves up and down reciprocates takes out seedlings and plants them on the rice field. In addition, there are some devices that are equipped with a lower seedling feeding mechanism that feeds the seedlings intermittently at the bottom of the seedling platform so that the seedlings move from the upper side of the slope to the lower side of the slope. No. 120923).

[Problem that the invention attempts to solve]

However, if it is a single square pine seedling like a rice seedling, there is no problem, but if it is a rush seedling as mentioned above, it must be loaded by compressing many circular mother plants. As a result, when the seedlings are fed, the mother plant is pushed upwards, creating gaps between the mother plants and the seedlings are not sent evenly to the seedling take-out port.As a result, the seedlings are planted unevenly by the seedling transplanter. There is a problem that over time, stock shortages occur.

[Means and actions for solving problems]

Therefore, the present invention is to provide an upper seedling feed claw that moves the seedlings placed on the seedling platform from above the seedling platform to the side of the seedling take-out port in conjunction with the operation of the planting body. Therefore, it is an object of the present invention to provide a seedling feeding mechanism in a rush planting device that uniformly feeds seedlings to a seedling take-out port and allows the seedling planting body to reliably perform the planting work.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 is a case that also serves as the frame of the rush planting device, 2 is a handle support rod having one end fixed to the lower end of the case 1 and the other end extending rearward and diagonally upward; Reference numeral 3 denotes a seedling stand supported in a forward-slanting manner on the handle support rod 2, reciprocating in the left-right direction at a predetermined interval, and having a seedling take-out port 3a at the lower end of the slope, all of which are well-known. , although not shown, constitutes a walking-type transplanter similar to a rice transplanter.

An input shaft 4 and an intermediate shaft 5 are horizontally supported on the upper part of the case 1, and power is transmitted by meshing a gear 4a provided on the input shaft 4 with a gear 5a provided on the intermediate shaft 5. are doing. A planting body drive shaft 6 is pivotally supported at the bottom of the case 1, and this drive shaft 6
A chain 7 is stretched between a sprocket wheel 6a provided on the intermediate shaft 5 and a sprocket wheel 5b provided on the intermediate shaft 5. A base portion of a planting body 9 is attached to the shaft end of the planting body drive shaft 6 via a crank arm 8. The planting body 9, like the planting body of a conventionally well-known rice transplanter, is pivotally supported by the other end of a swinging arm 10 whose one end is pivotally connected to the transplanter main body near the attachment point with the crank arm 8. At the tip of the cage, a pair of left and right separating claws 11, each having a conical tip, are arranged side by side at a predetermined distance apart.
An implantation needle 12 having a needle-like tip is attached between the two. The planting body 9 is connected to the drive shaft 6
The tip of the separating claw 11 reciprocates up and down as shown in FIG. Moreover, the implantation needle 12
is located above the tip of the separating claw 11 when the separating claw 11 separates the seedlings from the seedling take-out port 3a, and when the separating claw 11 enters the field with the seedlings separated and held, the separating claw 11 The seedlings are protruded between the tips of the nails 11 to separate the seedlings from the separation nails 11 and plant them on the rice field.

A rotating shaft 13 is pivotally supported near the planting body drive shaft 6, and a gear 13 provided on this rotating shaft 13
a and a gear 6b provided on the drive shaft 6 are meshed with each other. A swing shaft 14 is fitted on the outside of the rotating shaft 13, and this swing shaft 14 is connected to the intermediate shaft 5.
It is configured to reciprocate through a predetermined angle (approximately 64 degrees) by a crank mechanism 16 provided on a rotating shaft 15 that is rotationally driven by a gear 15a meshing with a gear 5c fixed to the shaft. The shaft end of the swing shaft 14 is formed into a box shape, and an eccentric cam 17 is attached to the shaft end of the rotary shaft 13 inside the box. It is in sliding contact with the lower end of the accommodated actuating rod 19.

At the tip of the operating case 18, the base ends of a pair of left and right upper seedling feed claws 20 with pointed tips are attached to a holder 21.
It is installed through. This holder 21
is rotatable in the vertical direction and has an actuating piece 22 that is in contact with the upper end of the actuating rod 19;
A spring 24 is tensioned between the end of the actuating piece 22 and a locking piece 23 provided at the base end of the actuating case 18, and presses the actuating piece 22 toward the actuating rod 19 and locks the actuating rod 19 and the cam 17 together. Forced contact with.
The swing timing of the swing shaft 14 and the rotation timing of the cam 17 are determined when the upper seedling feeding claw 20 moves clockwise in FIG. When the seedling is inserted, the large diameter part of the cam 17 comes into sliding contact with the actuating rod 19, pushing up the actuating rod 19 against the tension of the spring 24, and as a result, the actuating piece 2
2 to rotate the holder 21 clockwise, rotate the upper seedling feed claw 20 to push it in, and synchronize it so that the rush seedlings pressed against the seedling platform 3 are fed out to the seedling take-out port 3a side. There is. Immediately after this upper seedling feeding claw 20 sends out the rush seedlings to the seedling taking out port 3a side, the separation claw 11 moves to the seedling taking out port 3a.
The process is synchronized so that the seedlings are taken out.

A lower seedling feeding mechanism 2 is provided on the bottom of the seedling mounting table 3.
5 is provided. This lower seedling feeding mechanism 25
The swing shaft 14 is different from that of a conventional rice transplanter.
It is connected to the swing shaft 14 via the two link members 26 and 27 so that it constantly rotates back and forth in synchronization with the swing of the table to send the rush seedlings on the seedling platform 3 to the seedling take-out port 3a side. ing. In addition, since the seedling platform 3 is always moving in the left-right direction, a window 3b that opens in the left-right direction is provided at the bottom of the seedling platform 3 with a width that allows the lower seedling feeding mechanism 25 to reciprocate. The window portion 3b is closed by a seedling support plate 28 disposed from the lower side of the portion 3b to the lower seedling feeding mechanism 25 side to support the grass seedlings, and the claws of the lower seedling feeding mechanism 25 are moved to the seedling supporting plate 28. There is a gap that allows for

The rush seedling planting device with this configuration first has the following features:
The mother plants B of rush seedlings are sequentially supplied from above the slope of the seedling platform 3, and transferred so as to be pushed to the lower end side of the slope via a forced feeding mechanism (not explained). This mother plant B is further fed by a lower seedling feeding mechanism 25 that reciprocates within a certain range through link members 26 and 27 as shown in FIG. The seedlings are then sent to the seedling take-out port 3a side. During the feeding action by the lower seedling feeding mechanism 25, the mother plant B is slightly floated to the seedling take-out port 3.
Mother plant B sent to side a and located in window 3b
are supported by the seedling support plate 25 and will not fall.

The mother plant B brought to the vicinity of the seedling outlet 3a is
In conjunction with the feeding action of the lower seedling feeding mechanism 25, the first
As shown in FIG. 5 and FIG. 5, the tip of the upper seedling feeding claw 20, which reciprocates back and forth around the swing shaft 14, is pushed from above and pressed against the seedling platform 3, and the cam 17 and actuating rod 19 , actuating piece 22, holder 2
1, the upper seedling feed claw 20 is moved to the seedling take-out port 3a.
Move to the side and move the mother plant B to the seedling removal port 3a. A planting body 9 reciprocates this moved mother plant B by drawing a trajectory A up and down via a crank arm 8 and a swinging arm 10 by rotation of a planting body drive shaft 6.
The separation claw 11 separates the parts as shown in FIGS. 1, 3, and 4. During this separation, the separation claw 11
The root of the mother plant B, which has a pointed conical tip and is firmly connected by a wedge action, is separated and taken out by being held between a pair of separating claws 11, 11.
When the separating claws 11 enter the rice field, the planting needle 12 protrudes between the separating claws 11, 11, plants the clamped seedlings into the mud, and ascends along the trajectory A. By repeating these operations, continuous planting of Igusa seedlings is carried out. The vertical movement of the planting needle 12 is performed by the reciprocating movement of the planting body 9, as is well known, by a built-in cam, spring, etc.
0 is at the 20 position when the mother plant B is pushed forward, as shown in FIG. It is operated by a rod 19, an operating half 22, a holder 21, a spring 24, etc.

[Effect of idea]

As explained above, according to the seedling feeding mechanism of the rush planting device of the present invention, the seedlings placed on the seedling platform 3 are moved from above the seedling platform 3 in conjunction with the operation of the planting body 9. Since the upper seedling feed claw 20 is provided to push the seedlings and move them toward the seedling take-out port side, it is possible to reliably feed the circular-shaped rush mother plant toward the seedling take-out port 3a without floating the mother plant, and moreover, A large number of new shoots can be pressed and transferred onto a seedling platform with little damage by the upper seedling feeding claw 20, and the separation and planting of the seedlings by the planting body can be reliably performed.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view of the main part showing an embodiment of the present invention, Fig. 2 is a longitudinal sectional front view of the same, Fig. 3 is a perspective view of the seedling separation operation, Fig. 4 is a plan view of the same, and Fig. 5 FIG. 2 is an explanatory diagram illustrating the operation of the upper seedling feeding claw and the separating claw. 1... Case, 3... Seedling stand, 3a... Seedling take-out port, 4... Input shaft, 5... Intermediate shaft, 6... Planting body drive shaft, 7... Chain, 9... Planting body, 11
... Separation claw, 12 ... Implant needle, 13 ... Rotating shaft,
14... Swing axis, 18... Operating case, 20...
Upper seedling feeding claw, 25...lower seedling feeding mechanism.

Claims (1)

[Scope of Claim for Utility Model Registration] A seedling holder that is sloped to one side and forms a seedling take-out port at the lower end of the slope, and also places a large number of circular-shaped rush mother plants and sends them out to the seedling take-out port side. In a rush planting device having a stand and a planting body that reciprocates up and down to plant the seedlings taken out from the seedling take-out port onto the rice field, from above the seedling platform in conjunction with the operation of the planting body, A seedling feeding mechanism in a rush planting device, characterized in that an upper seedling feeding claw is provided for moving the seedlings placed on a seedling platform to the side of a seedling take-out port by pushing them against the seedling platform. .