JPH0233617Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for planting seedlings in soil such as paper tube seedlings, and in particular provides a device suitable for separating continuous paper tube seedlings one by one. be.

Conventionally, there are known transplanters that raise crop seedlings in a continuous paper tube, pull them out in a row, separate the seedlings from the edges one by one, and plant the separated seedlings in the field. The method that is mainly used is to allow the material to fall naturally after separation. The inventors first changed planting by falling to forced planting using a holder.The rotating holder was opened and closed by a guide rail.After the holder closed and clamped the seedlings, the seedlings were forcibly separated, transported to the planting site, and placed in the holder. We have developed a transplanter that opens the seedlings and releases the seedlings for planting. Although this transplanter is particularly suitable for transplanting large seedlings such as vegetable seedlings, it has the disadvantage that the holder is integrated with the rotating body, so a holder must be used that corresponds to the size of the seedling.

This invention corrects the above-mentioned drawbacks, and as a result of our research to create a transplanter that can transplant seedlings of any paper tube diameter using the same holder, we have developed a transplanting device that is equipped with two opposing transplant rods inside a pair of rotating bodies. The problem was solved by attaching an elastic rod to the end of the transplant rod, and fixing a holder to the elastic rod to create a device for separating and planting seedlings.

Examples of the invention will be explained with reference to the accompanying drawings. In the figure, numeral 1 indicates the frame of the transplanter, and the machine moves in the direction of the arrow by itself or being towed by a tractor or the like. Machine frame 1
At the top of the seedling stand 2, the upper part of the seedling stand 2 is fixed horizontally with the rear part facing backward and tilted downward, and in the center of the seedling stand 2
The pair of guide plates 3, 3 are fixed. These guide plates 3, 3 have fan-shaped upper openings, and only the upper part is fixed, and the lower part is made of a spring-like object with a free part.The lower part holds the paper tube seedling 4 and is pressed from both sides to prevent it from falling naturally. It is designed to apply the brakes. At the bottom of the seedling stand 2, rotary shafts 5, 5 are provided outside the guide plates 3, 3, and are mounted by bearings 6, 6 so as to pass through the front and back of the seedling stand 2. At the lower ends of the rotating shafts 5, 5 are gears 7, 7 having the same diameter, respectively.
Seedling holding arms 8, 8 are fixed to the upper parts of the gears 7, 7 so as to be parallel to the lower part of the seedling stand 2, and are fixed so as to cross each other vertically at the front part. Spring 9, 9 is attached to the center of the seedling holding arm 8, 8, respectively, and the other end is fixed to the underside of the seedling stand 2, and a supporting rod 1 is attached to the tip.
0 and 10 are raised and fixed so that they face the end of the seedling stand 2, and a seedling holding plate 1 is placed on the top of the support rods 10 and 10.
1 and 11 are fixed so as to face the extending portions of the guide plates 3 and 3.

An open arm 12 is provided on one upper part of the rotating shaft 5.
is provided and fixed in a state where it expands outward, and is fixed in a V-shape with the lower seedling holding arm 8. For this reason, when the opening arm 12 is pushed inward, the gear 7 is rotated via the rotating shaft 5, and the gear 7 on the other side that meshes with this also rotates, so the seedling holding arms 8, 8 on both sides are attached to the springs 9, 9. The seedling holding plates 11, 11 are rotated against the force of movement, and the seedling holding plates 11, 11 are opened to the left and right.

On the other hand, a fixed shaft 13 is provided at a position facing the upper surface of the seedling stand 2 and fixed to the machine frame 1, and a boss 14 is inserted onto the shaft 13. A pair of rotary disks 15, 15 are fixed to this boss 14 and connected by connecting rods 16, 16, . ,
A chain 18 is stretched between the ground wheel (not shown),
Rotate the rotating disks 15, 15 in the direction of the arrow. A plurality of opening/closing rods 19 are fixed radially on one side of the outer side of the rotating disk 15 on the side where the opening arm 12 is provided, and an opening roller 20 is attached to the end of the opening/closing rod 19.
is rotatably mounted so that it can engage with the opening arm 12 when rotated. Further, a large number of mounting bases 21, 21 are fixed to the inside of the pair of rotating discs 15, 15 and are opposed to each other.
and fixed so that they are located on the front and back of each other. Mounting stand 2
Swing rod attachment fittings 22, 22 are rotatably supported by shafts 23, 23 on the distal end sides of 1, 21, respectively, and transplant rods 24, 24 are attached radially to the attachment fittings 22, 22, respectively. Fix the center part. Then, holder mounting plates 25, 25 are fixed to the tips of the transplant rods 24, 24. The holder mounting plates 25, 25 are made of an elastic material such as a leaf spring, and have strong resistance in the rotational direction, but In this direction, the paper tube has enough strength to bend freely without crushing the seedlings 4 even when the seedlings 4 are clamped therebetween. At the tips of these mounting plates 25, 25, paper tube seedlings 4 are attached.
Seedling holder 2 with a shape that allows it to be held from the left and right sides.
6 and 26 are fixed so as to face each other inward.

On the other hand, a spring 2 is provided at the bottom of the transplant rods 24, 24.
7, 27, and the end thereof is attached to the rotating disk 14, 1.
4 and are constantly pulled in the direction in which the seedling holders 26, 26 close, and rollers 28, 28 are attached to the lower ends of the transplanting rods 24, 24 so that they can engage with cams 29, 29 fixed to the fixed shaft 12. There is. The cams 29, 29 have an arc shape and extend almost directly below the position facing the seedling holding plates 11, 11.
Since the 90 degrees are notched, the rollers 28, 28 come into contact with the cams 29, 29, which have approximately three quarters of a circumference, and the holders 26, 26 are closed by the effect of the springs 27, 27. Further, 30 is an opener, and 31 is a suppression ring.

Next, to explain the operation of the above device, the seedlings 4 pulled out onto the seedling stand 2 are held down by the guide plates 3, 3 on both sides, and the seedlings 4 at the tip are held down by the seedling holding plates 11, 11 and stopped. There is. As the machine advances, the rotation of the grounding ring (not shown) rotates the rotary discs 15, 15 in the direction of the arrow through the chain 18, and the opening roller 20 provided on the outer periphery of the rotating disc 15 rotates the opening arm 1 on the seedling stand 2.
2 and rotates the opening arm 12, the seedling holding plates 11, 11 that are interlocked with the opening arm 12 rapidly open left and right. Simultaneously with the engagement of the opening roller 20, the seedling holders 26, 26 are rotated in an open state by the cams 29, 29, but when they reach the position facing the seedling holding plates 11, 11, they are closed as described above, and the seedlings are The holders 26, 26 hold the seedling 4 from behind. When the rotary disks 15, 15 further rotate, the seedling 4
The rows of seedlings 4 are pulled against the brakes of the guide plates 3, 3 and descend. At this time, when the paper cylinder seedling 4 is lowered by one pitch, the engagement between the opening arm 12 and the opening roller 20 is released.
The seedling holding plates 11, 11 suddenly return to their original positions and close, thus blocking the advance of the paper tube seedlings 4. Therefore, the advance of the seedling 4 is stopped, and the paper tube seedling 4 at the tip and the stopped paper tube seedling 4 are forcibly separated. At this time, if the paper tube seedlings to be separated have different diameters, the seedling holders 26, 26 are attached to the holder mounting plates 25, 25, so if the seedlings 4 are small, the holders 26,
Since the clamping interval of the seedlings 6 is narrowed, and if the seedlings 4 are large, they are clamped wider, so that the seedlings 4 can be separated regardless of the diameter of the paper tube.

The separated seedlings 4 are rotated downward and conveyed, and the cam 2
9 and 29 come into contact with the rollers 28 and 28 again, so the holders 26 and 26 are opened and the seedlings 4 are transferred to the opener 30.
The suppressing wheel 31 is released into the groove opened by the following suppressing wheel 31.
It will be suppressed and planted.

The present invention is constructed as described above, and due to the effect that the holder mounting plates 25, 25 are made of elastic material, seedlings of any diameter can be separated and transplanted, and the holder can be replaced with a holder that matches the diameter of the seedlings as in the conventional method. This is extremely convenient as it is not necessary.

[Brief explanation of the drawing]

FIG. 1 is a side view of the main parts of a transplanter equipped with the device of the present invention, and FIG. 2 is a front view of a seedling stand, with a portion cut away. FIG. 3 is a front view of the rotating disk. 2... Seedling stand, 10... Seedling holding plate, 12... Opening arm, 15... Rotating disk, 20... Opening roller, 24... Transplanting rod, 25... Holder mounting plate,
26...seedling holder, 29...cam.

Claims (1)

[Scope of utility model registration request] A seedling holding and planting device characterized in that transfer rods are rotatably mounted inside a pair of rotating bodies so as to face each other, and a holder is fixed to the end of the transplant rod via an elastic rod.