JPH06237651A - Mulch film laying machine - Google Patents

Abstract

PURPOSE:To make it easy to treat a mulch film at the front part of a mulch film laying machine at the beginning or the finishing of laying, when laying a mulch film on a soil surface. CONSTITUTION:The mulch film laying machine is so installed as to consist of a film feeding device 2 which feeds and covers a mulch film 1 on a soil surface with traveling of the machine body, a press wheel 3 which presses the mulch film l to the covered soil surface, a suction nozzle 4 which sucks an upper surface of the laid mulch film 1 and a film cutter which cuts off the mulch film 1 in the laid side from the sucked mulch film 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mulch film laying device for laying mulch film on a soil surface.

[0002]

2. Description of the Related Art In a multi-film laying apparatus for laying on a soil surface a multi-film that is successively drawn out while running, a mulch-film that has already been laid at the end of each laying strip. Must be separated from the mulch film on the drawer side of the machine. At this time, it is difficult to pinch and fix the mulch film on the pull-out side accurately, and the mulch film is often detached by mechanical pinching.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a film pulling device 2 for feeding and covering the soil surface of the mulch film 1 as the machine body travels, and this mulch film 1 pulled out.
Squeezing wheel 3 that presses against the soil surface of the soil, a suction nozzle 4 that adsorbs the upper surface of the laid end of the multi-film 1, and a multi-film 1 on the laying side from the adsorbed multi-film 1.
And a film cutter 5 for cutting off the film.

[0004]

While the multi-film laying device is running, the multi-film 1 having a predetermined width is pulled out from the film drawing device 2 to the rear side, and the mulching film 3 is laid while pressing it against the soil surface. When the laying of the mulch film 1 is completed, the suction nozzle 4 sucks the upper surface of the mulch film 1 and sucks and holds the end of the mulch film 1 on the pull-out side. In this state, the end portion of the laying side multi-film 1 is cut off by the film cutter 5.

The pull-out side mulch film 1 separated from the end of the laying side mulch film 1 in this way is
It is difficult for the suction holding to come off while the film is pulled out together with the film drawing device 2 and the compression wheel 3 and the like to move to the next line. Since the end portion of the multi-film 1 on the pull-out side is suction-held by the suction force of the suction nozzle 4, the suction-holding is performed even if the distance between the multi-film 1 and the suction nozzle 4 is uneven. It is done accurately and rarely comes off due to wind pressure or tension. Moreover, the suction and release of the multi-film 1 are performed by moving the suction nozzle 4, opening and closing the suction air passage,
Further, it can be carried out with a simple structure and operation by stopping the driving of the suction fan, and the handling is easy.

[0006]

EXAMPLE A rotary tiller 6 and a cultivator 7 for cultivating the surface of the cultivated soil in a furrow are attached to the rear of the tractor body, and a film laying device 8 is attached to the rear side of the cultivator 7. The film laying device 8 is mounted on the laying frame 9. The multi-film 1 having a predetermined width is wound in a roll on the rear side of the cultivator 7 and is supported by the reel 10, and the multi-film 1 can be sequentially drawn from the reel 10. Reference numeral 11 denotes a spring 12 along the rotation peripheral surface of the roll-wound film 1 mounted on the reel 10.
A brake can be applied to the pull-out of the mulch film 1 with a film pressing roll that presses against the pressure of 1 and the brake can be released by the spring 12 of the wire 13.

A compression wheel 3 for compressing the upper surface of the mulch film 1 that is drawn out and covered with respect to the soil surface is rotatably provided at at least two left and right positions on the lower rear side of the reel 10. The compression wheel 3 has an outer peripheral surface composed of a sponge rubber roller or the like so as not to damage the compression film surface as much as possible. At the rear of the outer circumference of the compression wheel 3 on one side,
An earthing disk 14 for scooping up the soil on the soil surface and placing it on the side edge of the mulch film 1 is rotatably provided.

On the rear side of the compression wheel 3 and the earthing disk 14, suction nozzles 4 are arranged at appropriate intervals over the width of the mulch film 1 and communicated with a collecting duct 16 of a laying frame 9 by an air hose 15. Further, an air hose 17 is connected from the collecting duct 16 to a suction fan 19 on the work frame 18, and the suction fan 19 is driven to suck the outside air from each suction nozzle 4, and the suction force is applied to the suction nozzle 4. 1 can be adsorbed. Reference numeral 20 denotes a coil spring wound around the outer circumference of the air hose 15, which maintains the flexibility of the air hose 15, and 21 holds the suction nozzle 4 in a hanging posture with respect to the tip of the air hose 15. When an external force acts against the pressure, the suction nozzle 4 can swing, but immediately the pressure of the spring 21 restores the drooping state.

The film cutter 5 is located on the rear side of the suction nozzle 4 and has a heating wire 24 laid between arms 23 rotatable back and forth around an upper hinge 22. By bringing the multi-film 1 adsorbed by the suction nozzle 4 into contact with the rear of the adsorption position, the multi-film 1 can be cut and separated back and forth. Further, reference numeral 25 is an operation wire, which can appropriately rotate the arm 23 back and forth when cutting the film.

A soil mounting device 26 for mounting the soil A from the upper side surface of the mulch film 1 laid on the soil surface to prevent film peeling is composed of a soil removing conveyor 27, a hopper 28, shooters 29, 30 and the like. . The earth removing conveyor 29 scoops a part of the soil cultivated by the cultivating device 6 and conveys the soil into the hopper 28 at the upper rear part. The hopper 28 is provided with a shutter 31. Below this is the shooter 2
9 and 30, the lower end of the front shooter 29 is provided rearward of the position where the pressure is suppressed by the compression wheel 3 and before the suction nozzle 4, and the lower end of the rear shooter 30 is provided. The part is provided behind the suction nozzle 4. Further, each of the shooters 29 and 30 may be configured to branch laterally into a suitable number of places. The inside of the hopper 28 is divided into front and rear, and a shutter 31 can be opened and closed separately.

In the illustrated example, reference numeral 32 is a lift arm, which is provided on the rear side of the tractor vehicle body and is capable of vertically moving the work frame 18 by hydraulic pressure control. 33 is an input shaft that is interlocked with the power take-off shaft of the tractor.
4, the earth removing conveyor 27 can be driven via the spline shaft 35, the universal joint 36, and the like. Reference numeral 37 is a return shooter that receives the overflow portion of the soil supplied to the hopper 28 and reduces it downward. Reference numeral 38 is a front and rear partition plate in the hopper 28, 39 is a wire for opening and closing the front and rear shutters 31, and 40 is a spring for tensioning the front and rear shutters 31 in the closing direction. Reference numeral 41 is a ground roller provided at the bottom of the cultivator 7.

The film pushing roller 11 part pivotally supports 43 an arm 42 having the roller 11 to the laying frame 9 so as to be rotatable back and forth, and tensions the arm 42 to the front side by a spring 12 to roll the roller. 11 is always tensioned away from the reel 10 forward (FIG. 4), and the arm 13 is rotated to the reel 10 side against the spring 12 by the wire 13 so that the film pressing roller 11 is rolled into a multi-film. Press it against the outer surface of No. 1 and apply the brake to the drawer of this mulch film 1 (Fig. 5).

The shooters 29 and 30 have flexibility,
At the time of laying the mulch film 1 in the ridge and the narrow width (FIG. 6), the shooters 29 and 30 are brought close to the width of the ridge B so that the soil C can be concentratedly flowed down. In FIG. 7), the soil C can be made to flow down by being dispersed right and left at appropriate intervals. Further, the film cutter 5 may be in the form of a push-cutting blade 45 pushed down by the cylinder 44, instead of the form of the heating wire (FIG. 8).
In the cutting by the push-cutting blade 45 which moves up and down on the rear side of the suction nozzle 4, the lower part of the suction nozzle 4 is not traversed forward and backward, so that the film can be cut accurately.

By running the tractor body, the work frame 18 can be lowered to perform the laying work of the multi-film 1. In the state where the work frame 18 is raised before this work, the end portion of the multi-film 1 pulled out from the reel 10 is positioned below the compression wheel 3 to the suction nozzle 4 portion and sucked onto the suction nozzle 4. I will let you. or,
The pressing roll 11 is kept in contact with the peripheral surface of the roll-wound multi-film 1. When the work frame 18 is lowered and the compression wheel 3 is grounded, the mulch film 1 is preliminarily supplied with soil to the hopper 28 fixed to the soil surface. In this state, the laying control of the mulch film 1 is performed through each of the following steps. (1): The shutter 31 at the front of the hopper 28 is opened, and the soil A is placed on the upper surface of the rear end of the mulch film 1 from the front shooter 29 to fix the rear end of the film. After this fixing, the shutter 31 may be closed. In addition, the suction fan 19
Is stopped and the pressing of the film pressing roll 11 is released. (2): Advance the tractor and start the work. The soil surface cultivated by the tiller 6 is provided with a ridge 7 having a predetermined width,
Form in the groove. When the earth removing conveyor 27 is driven, a part of the tilled soil is conveyed and supplied to the hopper 28. The mulch film 1 is pulled out from the reel 10 and the compression wheel 3
To cover the soil ridge surface. The soil scooped up by the rotation of the soil disk 14 is placed and fixed on one edge of the multi-film 1. (3): When the stroke of one laying line is completed, the traveling of the tractor is temporarily stopped, and the shutter 31 at the rear is opened to open the shooter 3.
The soil A is made to flow down from 0, and the terminating portion of the laid mulch film 1 is fixed. The film pressing roll 11 presses and stops the surface of the multi-film 1 of the reel 10, and the suction fan 19 is driven to adsorb the multi-film 1 to the suction nozzle 4 (FIG. 2). (4): The work frame 18 is slightly raised with respect to the tractor, and the film cutter 5 is operated. When the film laying device 8 is slightly moved up, the part of the multi-film 1 adsorbed by the suction nozzle 4 is floated from the soil surface, so that the part between the fixed part by the soil A placed by the shooter 30 at the rear part of the film laying device 8 is lifted. The mulch film 1 tilts (FIG. 3). Since the heating wire 24 of the film cutter 5 is rotated downward from the upper side and acts on the floating inclined portion of the multi-film 1, the multi-film 1 is cut and separated. At this time, on the soil surface side, the front end of the laid multi-film 1 is maintained in a fixed state, and the rear end of the front pull-out multi-film 1 is suction-maintained by the suction nozzle 4. (5): In such a state, the work frame 18 is further raised, and the vehicle is turned to run and proceed to the laying work of the next multi-film 1. (6): The work frame 18 is lowered to ground the compression wheel 3, the earthing disk 14, and the like. When the front shutter 31 is opened for a certain period of time to let the soil flow down from the shooter 29,
It is placed on the rear end surface of the mulch film 1 and fixed on the soil surface. Therefore, the suction fan 19 is stopped, the multi-film 1 is released from the suction nozzle 4, and the pressure of the film pressing roll 11 is released. (7): Laying work of the mulch film 1 is performed by traveling the tractor.

The control of such a series of multi-film laying operation steps may be performed automatically or semi-automatically by a sequence control or a controller having a microcomputer.

[Brief description of drawings]

FIG. 1 is a side view of a multi-film laying device section, which is partially shown in plan, back, enlarged side, and the like.

FIG. 2 is a side view showing the operation of the film cutter section.

FIG. 3 is a side view showing the operation of the film cutter section.

FIG. 4 is a side view showing the operation of the film pressing roller unit.

FIG. 5 is a side view showing the operation of the film pressing roller unit.

FIG. 6 is a rear view showing the action of the shooter portion.

FIG. 7 is a rear view showing the action of the shooter portion.

FIG. 8 is a side view showing another embodiment of the film cutter.

[Explanation of symbols]

 1 Multi-film 2 Drawer 3 Squeezing wheel 4 Suction nozzle 5 Film cutter

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiji Kananami No. 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Pref.Iseki Agricultural Machinery Co., Ltd. Technical department

Claims (1)

[Claims] 1. A film drawing device 2 for feeding and covering the mulch film 1 on the soil surface as the machine body travels, a compression wheel 3 for pressing the drawn mulch film 1 on the covered soil surface, and the mulch film 1 A multi-film laying device provided with a suction nozzle 4 for adsorbing the upper surface of the laid end and a film cutter 5 for separating the multi-film 1 on the laying side from the adsorbed multi-film 1.