JPH0215166B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seeding and mulching device capable of performing both seeding and mulching operations.

Conventionally, when both sowing and mulching were performed, the ridges were first covered with a synthetic resin sheet such as a vinyl sheet, and then holes were continuously punched at predetermined intervals in this sheet. A widely used method was to make a shallow hole-like depression at the location of the hole and sow the seeds there.

However, since this method requires a great deal of effort and is inefficient, there has been a strong demand for a device that can perform seeding and mulching at the same time. In order to meet these demands, we used a multi-sheet (multi-film) with seed-seeding ports perforated in rows, so that when the holes in the sheet pass through the holes, the seeds fall into the holes and the seeds drop into the cylinder. A mulch seeding device has been proposed which is configured to sow seeds with an open bottom, but this device has a problem in that it is difficult to drop seeds in a concentrated manner at the sowing position.

The present invention provides a structurally simple device that can efficiently perform both sowing and mulching operations, and can also drop seeds in a concentrated manner at the sowing position.

That is, the seeding and mulching device according to the present invention includes a groove-making tool for forming seeding grooves in a field, a seeding machine for supplying seeds into the formed grooves, and a plurality of holes drilled in a row. It is equipped with a sheet feeding device that continuously feeds a perforated sheet having holes onto the field through a gap between a groove cutting tool and a seeding machine, and a sheet pressing device that presses the supplied sheet onto the field, and the sheet is fed out. A device in which seeds are dropped from a seeding machine into a groove through holes in a sheet, and the sheet is placed over the field so that the holes in the sheet are at the position of the seeds in the groove, and the seeding machine described above When the hole part of the sheet comes directly below the seed discharge port provided at the lower end of the sheet, it falls into the hole.
A hole detector that is kept lifted by the sheet when the non-hole part of the sheet comes directly below, and a hole detector that is integrated with the hole detector when the hole detector falls into the hole of the sheet. A rotary shutter is provided that rotates downward to open the seed ejection port and closes the seed ejection port when the hole detector is lifted. A guide extends in the front-rear direction on a side of the hole detector, and the shutter is provided at an angle so that the rotating end side further away from the pivot portion is located downward. There is.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a side view showing how the seeding and mulching device is used. In the figure, this seed mulching device 1 includes a groove cutting tool 2, a sheet feeding device 3, a seeding machine 4, a hopper 5, and a sheet holding device 6, and the entire device is mounted on a base 8a of a rotary tiller 8 by a frame 7. It is pivoted. In this case, the attachment angle of the seeding and mulching device 1 to the base 8a can be freely adjusted using the jack 9.

A ridge forming device 10 is disposed at the rear of the rotary tiller 8, and the rotary tiller 8 is configured as a powered agricultural machine (not shown) by an upper link 11 and a lower link 12.
is connected to. That is, in the illustrated example, the seeding and mulching device 1 is towed in the direction of arrow A together with the rotary tiller 8 and the ridge forming device 10, thereby making it possible to simultaneously perform the operations of tilling, ridge forming, seeding, and mulching. . The driving force of the rotary tiller 8 is the PTO shaft 1 of the power agricultural machine.
3 via the universal joint 14.

The groove-making tool 2 is used to form a groove 16 for sowing seeds in the field (in this case, the ridge 15). A groove 16 is formed by pulling the molded material while it is press-fitted into the material. Figure 2 shows the groove making tool 2.
In the illustrated example, the lower part of the hopper 5 is inserted between the side walls 2a of the groove making tool 2.
Note that a soil covering plate 2b is provided at the rear of the groove cutting tool 2. As this groove making tool 2, a hoe type, a shoe type, a disk type, etc. are usually used.

In the illustrated example, the sheet supply device 3 includes a sheet roll holding section 3a that holds a sheet roll 19 in which a mulching sheet 18 is wound into a roll, and a rod-shaped guide 3b that supports the sheet 18 being fed out. This rod-shaped guide 3b extends in the front-rear direction on the side of the installation position of the hole detector 4e, and is curved so as to tension the sheet 18. The sheet roll holding section 3a includes a support shaft 19a that rotatably supports the sheet roll 19, and a column 19b that supports the support shaft 19a. The sheet 18 is a perforated sheet having a plurality of holes 18a formed in rows at predetermined intervals along the longitudinal direction. From there, it is fed out between the sowing machine 4 and the hopper 5, and placed over the field so that the hole rows overlap the grooves 16, as shown in FIG. Note that the sheets 18 are sequentially pulled out because the seeding and mulching device 1 moves with the rear portions being pressed down.

In the illustrated example, the seed sowing machine 4 is a device equipped with a seed dispensing roll 4a, and by rotation of the seed dispensing roll 4a, the seeds stored in the storage section 4b are transferred to a seed discharging port provided at the lower end. Send an appropriate amount from 4c. The seeding machine 4 is not limited to the illustrated device, but may be any other suitable device capable of discharging seeds in appropriate amounts.

The seed discharge port 4c of the seed sowing machine 4 is provided with a shutter 4d as shown in FIG. This shutter 4d is integrally supported by a hole detector 4e and rotatably supported by a shaft 4f in the direction of arrow B. This hole detector 4e is provided to detect the hole 18a of the sheet 18, and as shown in FIG. Hole detector 4e
is placed on the sheet 18, and the integrally provided shutter 4d is pushed up to keep the seed discharge port 4c closed to prevent the seeds 20 from falling, but as shown in FIG. 4b. When the hole 18a comes directly below the seed discharge port 4c, the hole detector 4e falls into the hole 18a, and the shutter 4d is rotated downward to open, causing the seeds 20 to fall downward through the hole 18a. In addition, the rotary shutter 4
d is provided so as to be inclined so that the rotating end side is lower and the pivot portion is higher when viewed from the side in the closed state. Figure 4c shows the shutter 4d and the hole detector 4.
FIG. 3 is a plan view showing the relationship between e and hole 18a.

A hopper 5 is provided directly below the seed discharge port 4c, as necessary, to sandwich the passage of the sheet 18.
The hopper 5 has a hole 18a in the sheet 18 which is covered with a falling position of the seed supplied into the groove through the hopper 5.
be mounted to match the location of the

Note that the seeds dropped into the groove are covered with soil by the soil covering plate 2b.

The sheet pressing device 6 includes a pressing roller 2 that presses the side edge portion 18b of the sheet 18 placed over the field (ridge).
1. It consists of a soil-covering disk 22 on which soil for weight is placed on the side end portion, and a compression wheel 23 that compresses the upper surface of the ridge 15 covered with the sheet 18 from above the sheet 18.
This suppression wheel 23 is rotatably supported by a spring 24 while being constantly pressed against the sheet 18, and rotates due to the frictional force with the sheet 18, but this rotational force is transmitted to the seeding machine 4 and feeds out the seeds. Rotate the roll 4a. The sheet holding device 6 is not limited to the device shown in the illustration, but any device that can successfully press the sheet 18 fed from the sheet feeding device 3 onto the field surface, at least temporarily, may be used. Good too. sheet 18
Covering of the side edges with soil may be performed using other equipment.

Therefore, grooves 16, which are depressions for seeding, are formed in the field by the groove-making device 2, and the perforated sheet 18 for coating is fed out onto the field from the sheet feeding device 3, and the sheet 18 that is being fed out is fed out onto the field. Hole 1
Seeds are fed from the sowing machine 4 to the hopper 5 through 8a, and the hopper 5 successfully supplies the seeds to a predetermined position in the groove 16. The field field is subsequently covered by the sheet 18, so that the sheet 18
The seeds are sown at the position of the hole 18a.

In the seeding mulching device according to this invention,
The seeding port provided at the bottom of the seeding machine has a seeding hole that falls into the hole when the holed part of the sheet is directly below it, and is lifted up by the sheet when the part of the sheet without holes is directly below it. When the hole detector falls into the hole in the sheet, it rotates downward together with the hole detector to open the seed ejection port, and the hole detector is lifted up. Since a rotary shutter is provided to close the seed exhaust port in the closed state, the structure is simple and the operation is reliable.
As soon as the hole detector falls into the hole in the sheet, the shutter opens and the seeds can be quickly sown from the seed discharge port through the hole in the sheet into the furrow in the field, resulting in a high germination rate. can. A rod-shaped guide that tensions the sheet at the position of the hole detector is installed on the side of the hole detector in the front-rear direction, so that the sheet is placed directly under the seed discharge port with a hole detector that detects the hole in the sheet. The sensing operation of the hole detector can be stabilized by preventing the formation of wrinkles that would disturb the operation of the sensor. In addition, since the shutter is installed at an angle so that the rotating end side, which is further away from the pivot part, is located downward, the fed out seeds accumulate in the lower part of the rotating end side of the shutter. In combination with the fact that the shutter rotates together with the hole detector, when the shutter opens at the same time that the hole detector falls into the hole in the sheet, the seeds are concentrated all at once from the seed ejector into the field groove. As a result, the force pushing up the covering soil during germination becomes stronger, making it possible to obtain a seeding condition that improves the germination condition compared to the case where the seeds are sown in a dispersed state from the seed outlet.

[Brief explanation of drawings]

The drawings show one embodiment of the seeding and mulching device according to the present invention, and FIG. 1 is a side view showing how the seeding and mulching device is used, FIG. 2 is a plan view of the groove cutting tool, and FIG. 3 is a view of the sheet The perspective view showing the covering state and FIG. 4 are enlarged views of the main parts.
4a and 4b are partially sectional side views, and FIG. 4c is a plan view. Explanation of main symbols, 1...Seeding mulching device,
2... Grooving tool, 3... Sheet supply device, 3b...
Guide, 4... Seeding machine, 4c... Seed discharge port, 4d...
... Shutter, 4e ... Hole detector, 6 ... Sheet holding device, 16 ... Groove, 18 ... Sheet, 18a
...hole.

Claims (1)

[Claims] 1 Grooving tool for forming grooves for seeding in the field,
a seeding machine for feeding seeds into the formed furrow;
A sheet feeding device that continuously supplies a perforated sheet having a plurality of holes drilled in rows onto a field through a groove cutting tool and a seeding machine, and a sheet that presses the supplied sheet onto a field. Equipped with a presser device,
This is a device in which seeds are dropped from a seeding machine into a furrow through holes in the sheet being fed out, and the sheet is placed over the field so that the holes in the sheet are at the position of the seeds in the furrow. , When the hole part of the sheet comes directly below the seed discharge port provided at the lower end of the seed sowing machine, the seed falls into the hole, and when the part without holes of the sheet comes directly below, the seed falls into the hole. When the hole detector falls into the hole of the sheet, it rotates downward together with the hole detector to open the seed removal port and open the hole. A rotating shutter is provided to close the seed discharge port when the detector is lifted up, and a rod-shaped guide that tensions the sheet at the position of the hole detector extends in the front-rear direction on the side of the hole detector. The seeding and mulching device is further characterized in that the shutter is provided in an inclined manner so that the rotating end side remote from the pivot portion thereof is located downward.