JPH0438657Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement of a seedling holding and vertical feeding device used to separate and transport seedlings such as paper tube seedlings in a transplanter.

(Prior Art) In general, a transplanter can be said to be a device that transports supplied seedlings to a place where they are to be planted, and the transport means is an endless band such as a belt,
Means such as using a gripping body such as a holder, using wind pressure, or a combination thereof are employed. Among these, the most commonly used method is an endless belt, which involves holding the seedlings in place and transporting them laterally.
When conveying in an up-down direction or in an inclined direction, the seedlings are usually held between a pair of belts. If a flat belt is used at this time, there are problems such as slippage, lack of clamping ability, and crushing of seedlings, so measures have been taken to attach an elastic material such as a sponge to the belt surface. For example, the special public interest public in 1983
No. 27002 describes the provision of sponges and trichomes on the surface of paper tube seedling separation wheels and conveyor belts, and it has also been put into practical use to provide multistage wing pieces on the belt surface, but none of these This is due to the above reason.

(Problem to be solved by the invention) When a sponge is placed on the surface of the belt, it is extremely superior in that it can separate and transport the seedlings without damaging them, but it has the disadvantage that it wears out during use and must be replaced frequently. If this is replaced with a protrusion such as a blade, there will be no problem if the circumferential speed is as low as 70 to 100 cm per second. If the speed is higher than that, there are disadvantages such as hitting the seedlings during separation and damaging them, and the spacing between transplanted seedlings being inconsistent because the pitches of the wing pieces are held at different pitches.

(Means for Solving the Problems) The seedling clamping vertical feeding device of the present invention transplanter has been proposed for the purpose of solving the above-mentioned problems. A pair of seedling feeding belts 8, 8', each having a plurality of chevron-shaped annular continuous protrusions 2 arranged in parallel at predetermined intervals in the width direction of the annular belt 1, is used to feed seedlings between the opposing annular continuous protrusions 2, 2. They are vertically arranged opposite each other so as to sandwich P and convey it in the vertical direction.

(Function) The seedlings P are received between the opposing annular continuous protrusions 2, 2 of the vertically installed seedling feeding belts 8, 8' from a required feeding device, such as the horizontal feeding conveyor 7, and are tightly held and conveyed in the vertical direction. be done.

That is, the annular continuous protrusions 2, 2 are adapted to elastically deform and hold the seedling P according to its shape, and in this case, since the annular continuous protrusions 2, 2 have a chevron-shaped cross section and are tapered, The above-mentioned elastic deformation is performed more effectively, and the seedling P is held in a soft and reliable manner.

(Example) In the figure, 1 is an annular belt, 2 is an annular continuous protrusion with a chevron-shaped cross section that deforms elastically, and 8 and 8' are a plurality of annular continuous protrusions 2 arranged in parallel at predetermined intervals in the width direction of the surface of the annular belt 1. This is a seedling feeding belt.

Usually, the annular belt 1 and the annular continuous protrusion 2 are made of an elastic material such as rubber, and the annular continuous protrusion 2 has a chevron-shaped cross section, that is, it is wide at the base and gradually narrows toward the tip, as described above.

For example, in order to transport paper tube seedlings, the base should be 1 to 3 mm, the tip should be 0.5 to 1 mm, and the height should be 6 to 12 mm.
Annular continuous protrusions 2 are provided on the surface of an annular belt 1 having a thickness of 1 to 3 mm at intervals of 5 to 10 mm.

An example of a transplanter using the above-mentioned belt is shown in FIG. 2 and below, and the transplanter has a hole 4 for attaching to a tractor or the like in the front of the machine frame 3, and is pulled in the direction of the arrow. An opener 5 is fixed to the lower part of the machine frame 3 and opened toward the rear, and a grounding ring 6 is provided at the rear of the opener 5.

A transverse feed conveyor 7 is provided above the machine frame 3 as a seedling supply device, and a pair of long and short seedling feeders are provided at positions facing the seedling conveying end of the transverse conveyor 7 to sandwich the seedlings P and convey them downward. The upper end of the long belt 8' of the belts 8, 8' is exposed. Further, a seedling presser ring 9 is disposed above the end of the transverse conveyor 7, and the paper tube seedlings P are fed out between it and the transverse conveyor 7.

In the above-mentioned transplanter, the transverse conveyor 7 is a flat belt, and the seedling conveyor belts 8 and 8' are both shown in FIG. As for speed, the latter is 5 times faster than the former.
Make it ~20x faster.

A pair of elastic planting discs 10 are provided as a planting mechanism between the seedling feeding belts 8, 8' and the grounding wheel 6, and the planting discs 10 are installed at the conveying ends of the seedling feeding belts 8, 8'. approaches, receives the seedling P, presses it from both sides with guide rolls 11 provided on its outer periphery, rotates the received seedling P downward, releases it from the lower side, and plants it.

The device is driven by driving the planting disk 10 through a chain 12 by the grounding wheel 6, and by a drive shaft 14 rotated by a transmission shaft 13 interlocking with the planting disk 10, by means of seedling feeding belts 8, 8'. For this purpose, the belt 8 is attached to the pre-1 fixed to the shaft 14.
The belt 8' is stretched between the gear 17 fixed to the shaft 14 and the gear 17' is fixed to the floating shaft 14', and the belt 8' is stretched between the gear 17 and the upper pre-16, and meshes with the gear 17 fixed to the shaft 14. It is stretched between 16'. When paper tube seedlings are transplanted using this transplanter, there is less damage to the seedlings and the planting can be done at even spacing.

(Effects) As is clear from the above description, the seedling clamping vertical feeding device of the transplanter of the present invention has an annular continuous protrusion with an elastically deformable chevron cross section on the surface of the annular belt in a predetermined direction in the width direction of the annular belt. A pair of seedling conveying belts, each of which is arranged in parallel at an interval of The seedlings are received from the feeding device between the opposing annular continuous protrusions of the pair of vertically installed seedling feeding belts, are tightly held, and are conveyed in the vertical direction.

In other words, the annular continuous protrusion elastically deforms to fit the shape of the seedling and holds the seedling, and since the annular continuous protrusion has a chevron-shaped cross section and is tapered, the elastic deformation is more effective. This is done to ensure that the seedlings are held softly and securely.

In addition, since the annular continuous protrusion is literally continuous and has no breaks, the gripping state of the seedling is the same at any position, and as in the case of gripping the seedling with pin-shaped protrusions or blades, it is possible to displace the seedling, There is no need to make the planting intervals irregular, and in particular, there is no need to beat the seedlings when receiving them, so the seedlings are not damaged.

[Brief explanation of drawings]

Figure 1 A, B, C, and D are a side view, front view, and plan view of the seedling feeding belt, and a sectional view taken along the line A-A in A. Figure 2 is a side view of the transplanter equipped with the device of the present invention. Figure 3A is a side view of the main part of the same, and Figure 3B is a front view of the main part of the same. 1... Annular belt, 2... Annular continuous protrusion, 8,
8'... Seedling feeding belt, P... Seedling.

Claims (1)

[Scope of utility model registration request] A pair of seedling feeding belts each having a plurality of elastically deformable annular continuous protrusions with a mountain-shaped cross section arranged in parallel at a predetermined interval in the width direction of the annular belt are placed between the opposing annular continuous protrusions on the surface of the annular belt. A seedling clamping and vertical feeding device for a transplanter, characterized in that the seedling clamping and vertical feeding devices of a transplanter are arranged vertically opposite each other so as to clamp and transport the seedlings in the vertical direction.