JPS621890Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention proposes a multi-film feeding device for a multi-layer that stably feeds out the multi-film all the way to the end.

A farming method that covers the top of the ridges with mulch film has become popular. For this reason, machines for covering with this film have been put into practical use as multilayers. In addition, this film also ranges from non-porous to
There are various types, such as those with holes pre-installed at the position of the seedlings.

According to the inventor's experiments, especially when using two rows of perforated film, the film roll wound with this film has a small diameter at the position of the holes, and by unwinding the film, the film roll becomes smaller in diameter. As the film roll grows, the tensile force of the multi-film causes it to bend backward at the hole position, causing the film roll to no longer rotate smoothly, and the conical protrusions from the left and right sides of the film roll to engage with each other. Although it is supported by a holder, there have been times when this has come loose.

This idea is to always support the film roll from the pulling side, so that even if the diameter of the film roll becomes small, this support prevents the above distortion and makes the film roll straight. This makes it possible to smoothly unwind multi-film regardless of whether it is non-porous or not.

Next, to explain the multilayer to which this invention was applied, 1 is a tractor, and a rotary 3 with a ridge maker 2 is connected to the rear of the tractor.
As the soil advances, the rotary 3 plows the soil, and the ridge erector 2 erects semicylindrical mid-high ridges.

Reference numeral 4 denotes a pressure roller, which is designed to act on and press the tops of the above-mentioned ridges.

Reference numeral 5 denotes a seeding mulcher, in which conical protrusions 7, 7 protrude into the core hole of the film roll 6 from the left and right to support the film roll 6 in a rotatable manner, and the front of the film roll 6 is formed into a U-shape. It has a holding frame 8 surrounding the holding frame 8, and a hawk-shaped push-up roller holding frame 9 is attached to the lower part of the support rod 21 hanging down from the front part of the holding frame 8.
is rotatably supported by a pin 10, and the push-up roller 11, which has a sponge outer periphery and is rotatably supported, is a spring 12 with an elastic force greater than the tension of the multi-film rolled out on the rear ridge. The multi-film is pressed against the center of the film roll 6 from below on the rear side, and the push-up roller 11 detours the multi-film along the outer periphery of the film roll 6 from the lower end of the film roll 6 toward the upper rear side. A pair of seeding machines 22, 22 are provided on the left and right sides of the upper part of the holding frame 8, and operating pieces 13, 22 are provided corresponding to the two rows of holes on the left and right sides of the film, respectively. In addition, below the actuating pieces 13, 13, and at the rear end of the lower part of the holding frame 8, across the multi-film to be fed out, there are provided a stripping device 14, 14 and a push rod 1.
5, 15 and hoppers 16, 16 are provided.

Therefore, the film roll 6 is fed out rearward as the tractor 1 is propelled.
Since it covers the upper part of the above-mentioned ridge, the diameter gradually becomes smaller.As a result, the push-up roller holding frame 9 overcomes the tension from the diagonally downward direction on the rear side of the multi-film by the spring 12, and the pin 10 The push-up roller 11 always holds the film roll 6 in such a way as to push it up slightly from diagonally downward on the rear side to diagonally upward on the front side, so that the center of the film roll 6 does not sag backward. , the multi-film is smoothly rolled under the same conditions, and when the actuating pieces 13, 13 fall into the holes, the valves 17, 17 open, and the stripping device 14,
Drop the seeds into the groove made by 14.

18, 18 are a pair of left and right end pressing rollers;
9 and 19 are doke disks, and this end pressing roller 1
8 and 18 press both ends of the mulch film at the bottom of the ridge, and soil hanging disks 19 and 19 apply soil thereon to fix the mulch film. 20
The rear pressing roller acts on the ridges from above the mulch film and crushes the grooves made by the row cutting devices 14, 14, thereby covering the seeds with soil. Note that the seeding device may be removed and used during implementation.

In short, this invention extends a holding frame 8 that holds a multi-film film roll 6 that is suspended horizontally from the machine body and is fed out rearward to the rear of the lower part of the film roll 6, and a stripping device 14 is attached to the extending end of the holding frame 8. is installed, and the multi-film that is laid between the film roll 6 and the stripping device 14 passing above the striping device 14 is diverted to the rear side of the left and right center portion of the film roll 6 and above the lower end of the film roll 6. Along with letting
This is a film feeding device for a multilayer film, which is characterized by being provided with a sponge pressing roller 11 that presses the rear side of the left and right center portions of the film roll 6 with an elastic force greater than the tension of the multilayer film being laid. As the diameter of the film roll 6 becomes smaller as the multi-film is fed out, the center part of the film roll 6 is distorted so as to be pulled rearward by the tension of the laid multi-film. The rotation of the film roll 6 was no longer smooth, and the multi-film covering the ridges was extremely wrinkled, and the film roll 6 sometimes came off.However, in this invention, the multi-film on which the pressure roller 11 is laid is replaced by a film roll. 6, and press the rear side of the center part of the film roll 6 with an elastic force greater than the tension of the multi-film to smoothly unwind the multi-film from the film roll 6 without damaging the multi-film. At the same time, it is possible to prevent distortion occurring in the film roll 6 due to the tension of the multi-film.

[Brief explanation of the drawing]

Fig. 1 is a side view of a seed mulcher to which this invention has been applied, Fig. 2 is an enlarged side view of a portion thereof, Fig. 3 is a rear view of a portion thereof, and Fig. 4 is a plan view. The symbols in the figure are as follows. 6...Film roll, 7...Students, 8...Holding frame, 9...
Push-up roller holding frame, 10... pin, 11... push-up roller, 12... spring, 21... support rod.

Claims (1)

[Scope of utility model registration request] A holding frame that holds a multi-film film roll that is suspended horizontally on the machine body and is fed out rearward is extended to the rear of the lower part of the film roll, and a stripping device is attached to this extended end, so that the frame between the film roll and the stripping device is installed. At the same time, the multi-film that is being laid above the stripping device is detoured upward from the lower end of the film roll to the rear side of the left and right center portions of the film roll, and the film is detoured with an elastic force greater than the tension of the multi-film that is being laid. A film feeding device for a multilayer film, characterized in that a sponge pressure roller 11 is provided to press the rear side of the left and right center portions of the roll 6.