JPH0337376Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention involves spreading a perforated mulch film over the soil surface in which seeding holes or seeding furrows have been created after plowing, and seeding through these holes. This relates to a mulch seeding machine that is dropped into a seeding hole or a seeding groove to sow the mulch.

Conventional technology As disclosed in Utility Model Application Publication No. 58-75514, a seeding furrow is created on the upper surface of the ridge-like surface by plowing, and then a perforated mulch film is stretched over the ridge to spread seeds. A funnel equipped with a shutter is provided at the bottom of a seed drop tube that guides seeds discharged from a hopper to be stored, and a sensor for detecting holes in the multi-film is attached to this shutter.
There were known seeding machines that had a structure in which when the sensor fell into the hole, the shutter opened and seeds were sown, but there was no structure in which the sensor could be moved back and forth relative to the shutter.

Problems to be solved by the invention In the conventional technology, when the seeding machine is propelled by the traveling vehicle body, the sensor falls into the hole in the film depending on the propulsion speed, and then the shutter opens and the seeds are actually released. This resulted in problems such as the time it took to sow the holes varied, and the seeds not being sown exactly in the center of the hole, and in some cases, the seeds spilling onto the film.

Technical Means for Solving the Problems In order to solve the problems of the prior art, this invention is designed to provide seeding holes or trenches on the soil surface where the holes or trenches have been created after plowing. A thin film 9 made of vinyl or polyethylene, etc., with holes 9a perforated therein is stretched, and a mulch seeding machine is constructed that sows seeds from the holes 9a into the seeding hole or the seeding furrow. A shutter 16 is provided on the lower side of the cylinder 14 to receive and hold the seeds in the upward movement position and to discharge the seeds in the downward movement.The shutter 16 has a hole 9a that contacts the surface of the film 9 and falls into the hole 9a. In the seeding device, a detection sensor 18 is provided, and when the sensor 18 falls into the hole 9a, the shutter 16 is opened and seeds are sown, and when the sensor 18 is on the upper surface of the film 9, it is closed and the seeds are not sown. Said sensor 1
8 is provided as a seeding machine so as to be movable and adjustable in the front and back direction with respect to the shutter 16.

Function and effect of the invention When increasing the sowing speed, sensor 1
Set position 8 closer to the front. Then, the sensor 18 falls into the hole 9a of the film 9 and opens the shutter 16, so that the seeds are ejected earlier and are sown in the center of the hole 9a. On the other hand, when the working speed is slow, if the sensor 18 is moved backward, the seeds will be sown in the center of the hole 9a. Also, the hole 9 made in the film 9
The sensor 18 can also be appropriately shifted back and forth depending on the size of the hole 9a so that the seeds are sown in the center of the front and back of the hole 9a.

In this way, according to this invention, it is possible to adjust the sowing speed and the size of the holes in the film so that the seeds are sown in the center of the holes, and prevent seeds from being accidentally sown on the film or holes in the holes. This has the effect of preventing unexpected situations such as vegetables and other plants sown near the edges of the film from being damaged by the edges of the holes of the film or their growth being inhibited.

Embodiment 1 is a machine frame of a seeding machine, which is installed on the rear hitch of a towing vehicle (not shown) such as a tractor via an elevating link mechanism 2.

Reference numeral 3 denotes a roll support case for internally supporting a seed feed roll, which will be described later.A seed tank 4 is integrally attached to the upper part of this case 3, and a funnel 5 is provided at the lower part.

Reference numeral 6 denotes a hanging metal fitting for attaching the presser rods 9, 10 for the miscellaneous material pushing disks 7, 7, the soil cover plate 8, and the film 9. Reference numeral 11 denotes a disc furrower for creating seeding furrows on the ridges.

Reference numeral 12 denotes a roll on which the film 9 is wound, and is rotatably supported by the machine frame 1 via a bracket.
The film 9 wound around the roll 12 is provided with holes 9a for seeding at predetermined intervals.

Reference numeral 14 denotes a seed drop cylinder, which is connected to the lower part of the funnel 5. Reference numeral 15 denotes a seeding funnel, which has a U-shape in plan view and is fixed to the lower side of the seed drop cylinder 14, and has a shutter whose front upper part is pivoted to the inner lower part of the funnel and rotates up and down. 16 is installed.

Reference numeral 18 denotes a sensor, and the front part of the wire rod is bent so as to form a long mounting groove 18a in the front-rear direction, and the rear side of this sensor 18 is formed in a downwardly curved shape. A screw 19 is inserted into the mounting groove 18a of the sensor 18, and the sensor 18 is mounted on the back surface of the shutter 16 so as to be movable in the front and back direction. Incidentally, when the sensor 18 is moved and attached in the front-back direction, its rear lower end is provided so that it hardly moves in the up-down direction.

Reference numeral 20 denotes a restraining rolling wheel, which is attached to the machine frame 1 via a support frame 21 so as to be movable up and down, and a sprocket 22 is attached to this support shaft to support the roll support case 3.
The seed feeding roll inside is provided to be rotated by transmission. 23 is a chain case.

To explain the operation of the above example, when the seeding machine is lowered onto the ridge B and pulled, the film 9 is held down by the film holding rods 9 and 10 and covers the ridge B. Furthermore, grooves are formed in the left and right center portions of the ridge B by a disk groover 11.

On the other hand, since the suppressing rolling wheel 20 rotates while pressing the rear part of the film 9, the power from this rotates the seed feeding roll by the chain, and the seeds in the tank 4 are fed out little by little into the funnel 5, and the falling tube 14
It is supplied to the funnel 15 through the. At this time, if the sensor 18 is in contact with the top surface of the film 9 without falling into the hole 9a of the film 9, the shutter 1
Since the shutter 6 is closed, seeds can be received on the upper surface of the shutter 16. Then, when the sensor 18 falls into the hole 9a, the shutter 16 opens under its own weight, and the seeds 9a that have been received are sown into the created groove. Thereafter, the trench is backfilled with a soil cover plate 8, and the film 9 is pressed from the top surface with a pressure rolling wheel 20, so that the seeds are sown.

The seeding work is carried out in this way, but if the shutter 16 is not opened somewhat earlier when the propulsion speed of the towing vehicle is increased, the seeds will be sown closer to the front of the holes 9a of the film 9. When the film 9a is small, a situation may occur in which the seeds fall onto the upper surface of the film 9. In such a case, move the sensor 18 to the front and set it to quickly close the hole 9.
If the sensor 18 falls into the space 9a, the seeds will be sown in the center of the space 9a.

On the other hand, when working at a low speed, the seeds will be sown toward the rear of the hole 9a, so the sensor 18 is set toward the rear and adjusted so that the seeds are sown toward the center of the hole 9a. Also, if the front and back position of the sensor 18 is adjusted depending on the size of the hole 9a,
Seeds can be sown in the center of the hole 9a.

The sensor 18 may be configured to have two wire rods on the left and right sides as shown in FIGS. 6 and 7, or may have any other shape.

The structure of the seed dispensing part that is mounted on a shaft into the roll support case 3 and dispenses the seeds will be explained as follows.
24 is a roll rotation shaft, and a portion thereof is cut to form a flat surface.

Reference numerals 26 and 27 refer to adjustment bodies provided with a feeding roll having comb-shaped seed feeding grooves A, I, and comb protrusions RO, RO that are fitted into the grooves A and freely movable in the axial direction. , are both inserted through the shaft 24, and the roll 26 is fixed so as not to move on the shaft. On the other hand, the adjustment body 27 is connected to the shaft 24 via the outer end shifter 28.
It is provided movably in the axial direction by an adjusting shaft 30 screwed onto a screw shaft 29 fixed to the screw shaft 29, and the depth of engagement between the seed feeding grooves A, I... and the comb protrusions B, B, etc. can be adjusted. It is configured as follows.

Reference numeral 31 denotes a cover ring which is attached to the edge of the groove A when the seed feeding groove A and the comb protrusion B are fully fitted to the limit position as shown in FIG. This is to cover the space groove a formed between the tip of the protrusion and the tip of the protrusion. This cover ring 31 is provided so as to be movable in the axial direction with respect to the feed roll 26 by means of a screw 32 and a long hole 31a formed in the ring 31. Incidentally, it is common sense to configure the space groove a so that even if the groove A and the protrusion B are completely fitted together, the seeds will not be crushed between them.

When the space groove a is provided, this groove a
A cover ring 31 is provided because even if a seed gets stuck inside, it will be drawn out, and even if it is installed to prevent seeds from being drawn out, it will be drawn out unexpectedly.

In addition, when changing the interval at which seeds are fed out, the number of comb protrusions B is smaller than the number of grooves A so that fewer comb protrusions B, B, etc. can be fitted in relation to the number of seed dispensing grooves A, A, and so on. It is preferable to combine the adjusting body 27. Even in this case, the covering 31 is effective.

[Brief explanation of drawings]

The figures show an embodiment of this invention, in which Fig. 1 is a side view, Fig. 2 is a plan view of the main part, Fig. 3 is a side view of the main part, Fig. 4 is a plan view of the sensor, and Fig. 4 is a plan view of the main part. Figure 5 is a side sectional view of the main part in the operating state, Figures 6 and 7 are plan views of other examples of the sensor, and Figure 8 is a slope view of the main part.
Figure 9 is an exploded perspective view of each part of the feeding mechanism.
Figure 0 is a sectional view of the main part. Symbols: 9 is a film, 9a is a hole, 14 is a seed drop cylinder, 16 is a shutter, and 18 is a sensor.

Claims (1)

[Scope of utility model registration request] After plowing, a thin film 9 made of vinyl or polyethylene, etc., with holes 9a perforated in locations corresponding to the seeding holes or seeding grooves is stretched over the soil surface in which seeding holes or seeding grooves have been created. It constitutes a mulch seeding machine that sows seeds from 9a into a seeding hole or a seeding furrow, and the lower part of the seed drop tube 14 of this seeding machine receives and holds the seeds in the upward movement position, and discharges the seeds in the downward movement. The shutter 16 is provided with a hole 9 in sliding contact with the surface of the film 9.
A sensor 18 for detecting the hole 9a that falls into the hole 9a is provided, and when the sensor 18 falls into the hole 9a, the shutter 16 is opened and seeds are sown, and when it is on the upper surface of the film 9, it is closed to prevent seeds from being sown. In the provided seeding device, the sensor 1
8 is provided so as to be movable and adjustable in the front and back direction with respect to the shutter 16.