JP2568131B2 - Seedling feeding device for seedling machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a seedling feeding device of a seedling machine that opens and closes a seedling nail while moving a planting rod up and down to plant a seedling.

(Prior Art) In a conventional seeding machine, a disk-shaped seedling stand that rotates intermittently is horizontally installed, and a large number of pot-shaped seedling receivers are concentrically arranged on the seedling stand. There is known a seedling feeding device having a structure in which seedlings are sequentially put into a seedling receiver, and a seedling rod is sequentially drawn out from a hole provided at the bottom of the seedling receiver, received, and planted in a ridge.

(Problems to be Solved by the Invention) However, when planting a relatively thin type of seedling such as a sweet potato vine by this seedling feeding device using a conventional pot-shaped seedling receiver, the pot-shaped seedling The seedling may fall out of the hole of the seedling receiver, and if the hole is made small to solve this, there is a problem that the seedling is damaged when the seedling is pulled out from the hole.

Therefore, a seedling receiver provided with a seedling holder configured to sandwich the seedlings between two sandwiching springs has been proposed, but in this case,
The operator has to set the seedlings in the seedling holder of the seedling cradle that constantly rotates in the circumferential direction at a constant speed, and since the seedling machine itself moves forward, the work is very uncertain. However, there was a problem that stockouts often occurred.

It is an object of the present invention to provide a seedling feeding device that enables a worker to easily set seedlings on a seedling receiving stand and transplant the seedlings reliably, and also to simplify the configuration and reduce the price. To do.

(Means for Solving the Problem) In order to achieve the above object, the seedling feeding apparatus of the present invention is configured such that a chain drive shaft of an endless seedling transporting chain is connected to an intermittent rotation shaft that raises and lowers a planting rod. A large number of seedling pedestals are arranged at equal intervals in the chain, and the seedlings of these seedling pedestals are supplied to the inoculation nails of the above-mentioned rods.

(Operation) In the seedling feeding device configured as described above, when the intermittent rotation shaft for raising and lowering the planting rod is driven, the planting rod ascends and descends and at the same time, the chain drive shaft of the endless chain for transporting seedlings rotates and the above-mentioned endless chain. The upper seedling stand intermittently performs a feeding movement.

(Example) An example will be described with reference to the drawings.

FIG. 2 and FIG. 3 show the whole seedling machine embodying the present invention. This seedling machine has left and right front wheels 41, 41 and drive wheels 42,
The ridge 27 is straddled by 42, and the drive wheels 42, 42 move forward by rotation. When the worker sets seedlings S such as sweet potato vines one by one on the seedling receiving table 25 of the seedling feeding device T, the inoculation nails 14 of the planting rod 12 receive the seedlings S from the seedling feeding device T and the ridges. It is to be planted on 27.

In FIGS. 4 and 5, the output shaft 1 of the engine R is shown.
Then, the original vehicle 3 having the pin 2 and the spacer 9 is mounted.
A Geneva gear 5 having four radial grooves 5a at 90-degree intervals is attached to the shaft 4 so that the groove 5a is engaged with the pin 2 of the original vehicle 3, and the gear 6 is attached to the shaft 4. Implantable rod drive shaft 7
A gear 8 having 1/4 the number of teeth of the gear 6 is attached to the gear, and the gear 8 and the original wheel 6 are engaged with each other to form an intermittent motion mechanism K.

In Fig. 1, the base 12a of the implanting rod 12 is mounted on the body of the seedling machine.
To support. A crank arm 13 is fixed to the implanting rod drive shaft 7, and the tip of the crank arm 13 is connected to the implanting rod 12 by a link 14. A seedling rod (13) is fixed downward at the tip of the planting rod (12), and a seedling nail (14) for opening and closing is provided at the tip of the seedling rod (13). An appropriate seedling nail opening / closing device M for opening / closing the seedling nail 14 is provided at the base of the seedling rod 13.

Further, the sprocket 15, the chain 16, the sprocket 17, and the bevel gears 18 and 19 are further provided on the implantable rod drive shaft 7. A chain drive shaft (20) is fixed to a bevel gear (19) along the traveling direction of the vehicle body, and a sprocket (21) is fixed to this shaft (20). In addition, a sprocket 22 is provided on the side of 21 and a sprocket 23 is provided below 21, and an endless seedling transport chain 24 is wound around it. At the rear part of the seedling feeding device T, sprockets are arranged in the same manner as the sprockets 21, 22 and 23, and an endless chain for transporting seedlings is wound around them as in the chain 24. The front end and the rear end of a large number of seedling pedestals 25 are screwed between these two chains, respectively. A spring type seedling holder 26 for setting the seedlings S is provided on the upper surface of the seedling receiving stand 25. A seedling cover 28 guides the seedling S on the seedling receiving stand 25 so that it does not hang down under its own weight.

Then, when the output shaft 1 of the engine R is rotated, the whole seedling machine moves forward, and at the same time, the original vehicle 3 provided inside the intermittent motion mechanism K rotates counterclockwise. After the pin 2 of the original vehicle 3 is engaged with the groove 5a of the Geneva gear 5, the Geneva gear 5 is rotated clockwise by 90 degrees. The rotation of the Geneva gear 5 is transmitted to the gear 8 via the gear 6, and the implantable rod drive shaft 7 intermittently makes one revolution counterclockwise.

When the implanting rod drive shaft 7 rotates, power is transmitted to the implanting rod 12 via the crank arm 13 and the link 14, and the implanting rod 12 moves up and down intermittently with its base portion 12a as a fulcrum.

And at the same time, the chain 16 through the sprocket 15,
The bevel gears 18 and 19 rotate to drive the endless chain for transferring seedlings, and the seedling receiving table 25 intermittently moves around the sprockets 21, 22, and 23.

The operator sandwiches the seedlings S one by one in the seedling holders 26 of the seedling receiving table 25 while the seedling receiving table 25 that intermittently moves on the upper surface of the seedling feeding device T is stopped. The seedling stand 25 loaded with the seedlings S is a seedling feeding device T.
The seedlings 14 are successively fed to the seedling feeding position below the seedlings, and the seedlings 14 hold the seedlings S at the seedling feeding position and then plant them in the ridges 27. Hereinafter, these operations are continuously performed.

(Effects of the Invention) The present invention is configured as described above, and thus has the following effects.

Since the seedling pedestal is attached to the endless chain for transporting the seedlings and the seedling pedestal is driven intermittently, it is easy for the operator to set the seedling on the seedling pedestal, and the seedlings can be transplanted reliably.

Further, since the implanting rod and the seedling feeding device are driven by the same intermittent rotating shaft, the structure of the device is simplified and the cost can be reduced.

[Brief description of drawings]

1 is a perspective view of a seedling rod and a seedling feeding device of an embodiment of the present invention, FIG. 2 is an overall plan view of a seedling machine of an embodiment of the present invention, FIG. 3 is an overall side view thereof, and FIG. FIG. 5 is a side view of an intermittent motion mechanism of an embodiment using a Geneva gear mechanism, and FIG. 5 is a plan view thereof. 1 ... Output shaft of engine R, 3 ... Original vehicle, 5 ... Geneva gear, 6,8 ... Gear, 7 ... Implanted rod drive shaft, 13, 17, 21, 2
2,23 …… sprocket, 16,24 …… chain, 18,19 ……
Bevel gear, 25 ... Seedling holder, 26 ... Seedling holder, 27 ... Ridge, K
...... Intermittent movement mechanism, M ... Reciprocating device, R ... Engine, S ... Seedling, T ... Seedling feeding device

Continuation of the front page (56) References Microfilm (JP, U) of the contents of the specification and drawings attached to the application for Japanese Patent Application No. 56-55188 (No. 57-167621)

Claims (1)

(57) [Claims] 1. A seedling inserting machine for intermittently raising and lowering a planting rod and planting seedlings by an openable seedling claw provided at the tip of the planting rod, wherein an intermittent rotation shaft for raising and lowering the planting rod is provided with an endless chain for transporting seedlings. A seedling feeding device configured to connect a chain drive shaft, arrange a large number of seedling receiving stands on the endless chain at equal intervals, and feed the seedlings on the seedling receiving stand to the seedling cutting nails.