JPH0417602B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a film mulching device that can perform mulching and sowing at the same time as ridge formation.

Conventionally, in this type of film mulching device, as shown in FIG. 1, a film winding roll 4a, a seeding machine 5a, etc. are attached to a machine frame 8a extending rearward from a tilling device (not shown). At the rear end of the arm 10a, which is curved so as to surround the outer periphery of the film take-up roll 4a, there are two tension rods 9a, 9a formed in an arc shape for tensioning the film 6a.
are attached to the left and right sides so as to sandwich the perforated portion of the film 6a. Then, the sensor 7 of the seeding machine 5a is placed in the perforated part of the film 6a.
When the film 6a falls, the shutter 7b, which rotates together with the sensor 7a, opens, and the seeds pass through the effective part of the film 6a and reach the hopper 1 installed below it.
1a, and the seeds were dropped into a seeding groove 18a formed by a groove maker 3a. However, in such a device, the seeding machine 5a
Since the distance from the seeding drop opening to the furrow bottom (seeding bed) is relatively long, the sensor 7a detects the holes in the film 6a and causes the seeds to fall into the hopper 11a and be sown in the furrow bottom. , the seed in the groove bottom and the perforated part of the film 6a covering it do not match,
The perforated portion of the film 6a often shifts to the front or rear of the sown seeds, and this misalignment is particularly severe in mulching operations on slopes.

Furthermore, since the arc-shaped tension rod 9a for tensioning the film 6a was welded to the rear end of the arm 10a, the perforated part of the loosened film 6a was caught in this welded part, and during the work of laying the film 6a, This caused problems when the film 6a was torn.

The present invention has been proposed in view of the above-mentioned drawbacks, and it is an object of the present invention to provide a film mulching device that can smoothly pull out a film from a film take-up roll and perform accurate seeding operations.

For this reason, the present invention has taken the following technical measures.

That is, the film mulching device 1 is equipped with a furrower 3, a film winding roll 4, and a seeding machine 5 at the rear of a tilling device 2. A pair of left and right tension rods 9, 9 for tensioning the film 6 is configured so that the seeds fall into the holes 12 of the film 6 pulled out from the roll 4 into the seeding groove 18 formed on the ground surface. It is provided close to the ground surface, and its central part is curved in a mountain shape when viewed from the side and attached to the machine frame 8, and its lower end is
The structure of the film mulching device is characterized in that it is buried in the soil, sandwiching the seeding groove 18.

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

1 is a film mulching device, and this film mulching device 1 is attached to the rear of a tilling device 2. The tilling device 2 includes a main cover 14 that covers the top of the tilling section 13, a rear cover 15 that covers the rear of the tilling section 13, and the like, and a ridge erector 16 is provided at the rear of the tilling device 2. Reference numeral 17 denotes a cylindrical pressing roller that presses the upper surface of the ridge formed by the ridge forming device 16, and on the circumference of this pressing roller 17 is a protruding groove making device 3 for forming a seeding groove 18. A plurality of (two in this embodiment) are provided integrally with the pressure roller 17 and at appropriate intervals in the lateral direction. Reference numeral 19 denotes a belt-shaped frame surrounding the outer periphery of the pressure roller 17, the front end of which is pivotally connected to the rear cover 15, and the upper part supported by the machine frame 8 at the intermediate part in the longitudinal direction on the left and right sides. A supporting rod 20 is attached, and the pressure roller 17 is configured to elastically press the frame downward.

A film take-up roll 4 on which a perforated film 6 is wound is provided at the rear and upper part of the pressure roller 17, and the film 6 pulled out from this take-up roll 4 is placed in the vicinity of the ridge almost directly below the film take-up roll 4. It is configured such that it is once brought into contact with the guide roller 21 that has been moved and then fed out. 22 is this guide roller 2
This is an arm that supports the left and right sides of 1. 9, 9 are tension rods for the film 6 fixed to a member extending downward from the machine frame 8; these tension rods 9, 9 are formed of round bars, and as shown in FIG. The guide roller 21 is placed close to the front and lower part of the guide roller 21, and the middle part of the guide roller 21 is curved in the shape of a mountain when viewed from the side. It is attached so that it is buried inside.

Reference numeral 5 denotes a seeding machine supported by a machine frame 8. The lower part of this seeding machine 5 is connected to a tube 23 that guides the seeds to the upper part of the ridge, and the lower part of the seeding machine 5 is connected to a furrowing device 3 that carries the seeds descending inside the tube 23. When the sensor 7 of the opening/closing part falls into the hole 12 of the film 6 pulled out to the upper part of the tension rods 9, 9, the sensor 7 The opening/closing lid 24, which is integrated with the opening/closing lid 24, opens and guides a certain amount of seeds into the seeding groove 18 through the holes 12 of the film 6. The structure is such that the sloped inner surface of the seeding groove 18 is collapsed at the end to cover with soil.

In the figure, reference numeral 25 is an upper roller that presses the upper part of the film 6, 26 is a urethane wheel that presses the hem of the film 6, and 27 is a soil covering disk.

Next, the operation of the above example will be explained.

The soil tilled by the tilling unit 13 of the rotary tiller 2 is formed into furrows by the ridge maker 6 at the rear of the tiller 3 and the compacting roller 17 that rolls on the upper part of the furrow, and at the same time the compacting roller The groove is formed by the groove forming section 3 which is integrated with the groove forming section 17.

Then, when the film mulching device 1 is advanced while pressing the upper and side parts of the film 6 with the upper roller 25 and the urethane wheel 26, the film 6 pulled out from the take-up roll 4 is always in a stretched state with no slack. The sensor 7 detecting the hole 12 in the film 6 falls into the hole 12, opens the opening/closing lid 24 provided at the bottom of the tube 23 of the seeding machine 5, and guides and drops a predetermined amount of seeds into the seeding groove 18.

When the film 6 is further pulled out to the rear, the sensor 7 that has fallen into the hole 12 is lifted upward by the film 6 and the opening/closing lid 24 is closed. The ridges are covered with the film 6 while matching the area of the sowing bed with the area where the seeds have fallen.

At this time, the lower front edges of the tension rods 9, 9 supporting the film 6 from below approach the ridges, and the intermediate portions in the front-rear direction that continue to extend rearward are curved into a mountain shape when viewed from the side. , since the lower end is buried in the soil sandwiching the seeding groove 18, the distance for the seeds to fall and reach the seeding bed where the groove has been cut is shortened, and the time it takes to reach the seedbed is also shortened. During the film laying work, the position of the sowing area and the hole 12 of the film 6 covering it does not shift back and forth, and the film tension rods 9 cover the soil at the same time, resulting in efficient seed mulching. It is possible to perform an action.

Since the present invention is configured as described above, it has the following technical effects.

That is, the tension rods 9, 9 for tensioning the film 6 are provided close to the ridge, and the intermediate portion in the longitudinal direction of the portion that continues to extend rearward is formed in a mountain shape, so that it does not touch the ground surface. Wind enters from below the film 6 at the approaching start end of the film 6, and the film 6 is not pulsated violently, causing the film 6 to peel off from the ridge surface, and the film 6 is expected to be pulled out smoothly at all times. Moreover, since the sensor 7 that slides against the top surface of the film 6 can operate reliably, accurate seeding work can be carried out, and furthermore, the tension rods 9 can also act as soil covering. This makes it possible to perform efficient seeding and mulching operations.

In addition, since the distance that seeds dropped from the sowing port of the sowing machine 5 reach the sowing groove 18 that has been made is shortened, when the film 6 is being laid down, the sowing section and the holes of the film 6 that cover it are separated. The positions of the parts match accurately, and there are almost no deviations even when working on slopes.

[Brief explanation of drawings]

FIG. 1 is a side view of the main parts of a conventional device, and FIGS. 2 to 5 show an embodiment of the present invention, in which FIG. 2 is a side view, FIG. 3 is a rear view, and FIG. FIG. 4 is a side view of the main parts, and FIG. 5 is a view taken along arrow A in FIG. 2. Explanation of symbols, 1...Film mulching device,
2... Cultivation device, 5... Seeding machine, 7... Sensor, 9... Tension rod.

Claims (1)

[Claims] 1 A film mulching device equipped with a furrower, a film take-up roll, and a seeding machine at the rear of the tillage device, and the seeding machine has a sensor installed at the bottom of the seeding machine that detects holes in the film pulled out from the film take-up roll. A pair of left and right tension rods for tensioning the film are provided close to the ground surface, and the central part thereof is viewed from the side. A film mulching device, characterized in that the film is bent into a mountain shape and attached to a machine frame, and its lower end is buried in the soil, sandwiching the seeding groove.