JPS63276420A - Wrapping of pasture bale and apparatus therefor - Google Patents

Abstract

PURPOSE:To enable quick wrapping of a pasture bale with a film by single worker, by attaching a film to both lower ends of an inverted U-shaped arm rotating around a pasture bale rolling on the ground and wrapping the pasture bale with the film. CONSTITUTION:A door 30 is opened by operating a lever for driving a door cylinder near a pasture bale placed on the ground and the pasture bale 20 is introduced into a frame 10. After closing the door 30, a tractor 50 is retreated and the pasture bale 20 is rolled in the direction of the arrow E between guide rolls 24, 32. At the same time, the pasture bale is rolled in the direction of the arrow G by a hydraulic motor 34. An arm 35 is rotated by this action to unwind a film 41 from a film roller 40 and the film is rolled around the pasture bale 20 under tension applied by a stretch roll 37. The pasture bale 20 is wrapped with a strip of the film 41 by the rolling motion of the pasture bale 20.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for wrapping a film over a bale of ground-dried grass compressed into a cylindrical shape by a he-baler, and an improvement in an apparatus for carrying out the method. .

[Prior art] Fermenting dried grass with milk fermentation bacteria produces highly nutritious feed, but feed silos are very expensive, so the pasture bales, which are gathered into cylinders using Hebera, are made of synthetic resin film. A method of wrapping grass bales in film is
Place the grass bale on a turntable with a belt on the top surface so that its axis is horizontal, attach a film roll to the support shaft parallel to the rotation axis of the turntable so that it can be rewound, and then pull it out from the film roll. The end of the film was fixed to the grass bale, the turntable was rotated around the vertical axis, the belt was run, the roll on it was rotated around the horizontal axis, and the film was rotated in the diametrical direction of the end face of the grass bale. It is known to wrap it by wrapping it around it. Another method is to use a turntable with multiple pieces of embroidery protruding horizontally from a vertical table surface, and embroidery is attached to the end surface of a grass bale placed on the ground.
The grass bale is then lifted up together with a turntable and rotated about a horizontal axis, and the film is wrapped around the circumference of the grass bale, and the film is manually attached to the uncoated end surfaces.

[Problems to be solved by the invention] The method of placing a grass bale placed on the ground on a turntable requires more than 2 angstroms of manpower or a special lid, and the method requires heavy and large grass bales. Since the bale is rotated to wrap a strip of film pulled out by a film roll, the wrapping speed is slow and work efficiency cannot be improved. In addition, the method of sticking a grass bale through it, lifting it with a vertical turntable, and then rotating it requires a complicated and expensive device mechanism, and in addition, it requires rotating a heavy and large grass bale to wrap a strip of film around it. Again, there was a problem that the lapping speed was slow and the work efficiency was low.

The present invention has been made to solve the above problems, and its purpose is to provide a method for quickly wrapping grass bales with a film by hand, and an apparatus for carrying out the method. There is a particular thing.

[Means for solving the problem] In order to achieve the above object, the method of the present invention is characterized in that a cylindrical grass bale placed on the ground is covered with a bottomless frame, and the grass bale is placed on the frame. An inverted U-shaped arm that rotates around the periphery is suspended, a film roll is attached to both hanging parts of the seventh arm so that it can be rewound freely, and the film pulled out from the film roll is fixed to the frame and guided by the guide roll provided on the frame. While rolling the grass bale, the arm is rotated to wrap two strips of film pulled out from two film rolls around the grass bale.

It is preferable to attach a pair of stretch rolls to the hanging part of the arm and wrap the film while stretching it.Also, it is preferable to provide a cutting lever on the frame so that the tip of the film is tied to the cutting lever when starting winding, and when winding is finished. Preferably, the film is cut from the grass bale with the cutting lever and the cut end is gripped.

Further, the features of the device of the present invention include a frame without a bottom surface and a rear surface that can be connected to a tractor, a pair of wheels provided on a beam on the lower side of the frame, and a pair of wheels provided on a beam on the lower side of the frame. A guide roll in contact with the grass bale, an inverted U-shaped arm rotatably installed on the upper beam of the frame, a film roll attached to both hanging parts of the arm, and undulations on both sides of the lower beam. A cutting lever is provided, and a hydraulic device is provided to drive the arm and the cutting lever. It is desirable to provide a door on the rear surface of the frame that is opened and closed by a hydraulic device, and that the door also be provided with a guide roll that contacts the grass bale.

[Operation] First, the tip of the film pulled out from the film roll attached to both hanging parts of the arm is fixed to the cutting lever, and when the frame is connected to the tractor and the tractor is driven backward, the grass bale placed on the ground is cut from the rear side. It can be placed inside the frame. Next, when the arm is rotated by a hydraulic device while the grass bale is rolled by the guide roll, the two strips of film unwound from the two film rolls are wound horizontally around the grass bale being transferred, so that the film is attached to the grass bale. The grass bale is wrapped around the axis of the grass in a slightly shifted manner, completely enveloping the grass bale. When I finished wrapping the veil,
When the backward movement of the tractor and the rotation of the arm are stopped and the cutting lever is raised, the film between the film roll and the grass bale is cut by the cutting lever, and the end on the film roll side is hooked on the cutting lever. The grass bale then moves out of the frame as the tractor is moved forward. The wrapping process is considerably faster since all of these operations are performed by one operator who remains on the tractor except for securing the starting film to the cutting lever.

If a door that can be opened and closed by hydraulic pressure is attached to the rear of the frame and a guide roll that contacts the grass bale is attached to the door, the grass bale can be wrapped while the tractor moves forward.

[Example] The apparatus of the present invention will be explained based on embodiments shown in the drawings.

As shown in FIGS. 1 and 2, the frame consists of a rectangular upper beam 11, a U-shaped lower beam 12 and a vertical beam 13 between the upper and lower beams.

Wheels 14 are attached to the left and right sides of the lower beam 12, and a three-point hitch 15 is attached to the front surface. lower beam 1
2, a front guide roll 24 is rotatably supported by a bearing.

A pair of cutting levers 25 are attached to the lower beam 12 on the bracket 2.
It is installed so that it can be erected via 8.

The tip of a rod of a cutting hydraulic cylinder 27 is fixed near the base of the cutting lever 25, and the main body of the cutting cylinder 27 is fixed to the lower beam 12 with a clevis. Therefore, as the cutting cylinder 27 advances and retreats, the cutting lever 25
undulates as shown by arrow A in Figure 2. As shown in FIG. 4, the pair of cutting levers 25 and the cylinders for raising and lowering them are symmetrically provided with respect to the center of the frame.

A door 30 is attached to the rear surface of the frame 10, and the door is pivoted to a bracket 28 fixed to the upper beam 11. The tip of the rod of the groove cylinder 29 is fixed to the upper end of the left side of the door 30, and the main body of the groove cylinder 29 is fixed to the upper beam 11 by a clevis. Therefore, as the groove hydraulic cylinder 29 moves back and forth, the door 30 opens and closes as shown by arrow B in FIG. Bracket 3 from the bottom edge of door 30
1 extends at right angles, and a rear guide roll 32 is rotatably supported at the tip of the bracket. Its guide roll 32 goes inside the lower beam 12.

Across the upper beam 11 is a central beam 33, in the center of which a hydraulic motor 34 is mounted. The center of an inverted U-shaped arm 35 is fixed to the output shaft of a hydraulic motor 34. A roll support stand 36 is fixed to both hanging parts of the arm 35, and a pair of stretch rolls 37 and a film roll support shaft 38 are attached to the roll support stand.

The film roll 40 is rotatably fitted around the film roll support shaft 38, and the film 41 pulled out from the film roll is first passed between a pair of stretch rolls 37. The leading end of the film 41 is then tied to the leading end of the cutting lever 25. The cutting lever 25 is provided with a plurality of hooks 19.

As shown in FIG. 2, when the rod of the groove hydraulic cylinder 23 is moved in and out, m30 rises and opens, so the grass bale 2
o can be placed in frame 1a. When the grass bale 20 is put into the frame 10 and the door 3° is lowered and closed, the grass bale 2o is sandwiched between the front and rear guide rolls 24, 32, and therefore moves forward or backward while rolling together with the frame 1o.

The first factor is as shown by arrow C, when the hydraulic motor 34 is rotated and the arm 35 is turned, the two film rolls 4
The film 41 is rewound from 0, and the stretch roll 37
Although not shown in the drawings, it is desirable to provide a net-like cover around the frame 10 to cover the rotation range of the arm 35, for safety reasons.

Next, the present invention will be explained in detail.

As shown in FIG. 3, a hitch 15 is connected to the three-point link of the tractor 5o. Further, the cutting hydraulic cylinder 27, the groove hydraulic cylinder 28, and the hydraulic motor 34 shown in FIGS. 1 and 2 are connected to the hydraulic pressure source of the tractor, and each operating lever is also attached in the cabin of the tractor. As shown in Figure 1,
The leading end of the film 41 is pulled out from the film roll 4o, passed through the stretch roll 37, and then tied to the cutting lever 25. Near the grass bale placed on the ground, operate the operating lever of the employment cylinder to open the door 3o and move the tractor backwards, and as shown in FIG. 3, after putting the grass bale 2o into the frame 10. Lower door 3o and close it.

Next, the tractor 5 is moved backward (or forward) as shown by the arrow in FIG. 3, and the grass bale 2o between the front and rear guide rolls 24,32 is rolled in the direction of the arrow E.

At the same time, the operating lever of the hydraulic motor 34 is operated to rotate it in the direction of arrow G. Since the arm 35 rotates together with the hydraulic motor 34, the film roll 4 at both lower ends of the arm 35
The film 41 is rewound from 0, and the stretch roll 37
It is wrapped around the grass bale 2o while being stretched.

During that time, the grass bale 2o is rolling, so the film 41
The wrap film is stacked in about 2 to 5 layers, overlapping each other at a slight angle around the axis of the grass bale, overlapping each other to wrap 20 grass bales.

As shown in FIG. 4, two film rolls 40 rotate around the grass bale 20 as shown by arrow H, and two strips of film 41 unwound from the two films wrap the grass bale 20. The wrapping process is very quick. Although it varies depending on the age of the film, the time required for wrapping is usually about 20 seconds.

After wrapping the grass bale 20 with a desired number of films 41, when the operating lever of the cutting cylinder is operated to raise the cutting lever 25, the film 41 between the wrap and the stretch roll 37 is cut. The starting end of the wrap that has been cut by 8-25 and tied to the tip of the cutting lever 25 is removed from the cutting lever 25. The end of the film on the film roll 40 side is hooked onto the hook 18 of the cutting lever 25. Therefore, the door 30 is raised by operating the operating lever of the groove hydraulic cylinder, and then the tractor 5
0 moves the wrapped grass bale 20 out of the frame 10. Another hay bale is then placed inside the frame and wrapped, but the end of the film is gripped by the cutting lever, so the operator does not need to get off the tractor at all.In this way, the wrapping operation is all done by one person. Wrapping is extremely easy because it is done by many workers while riding on a tractor.

■Effects of the Invention] As described above, the method and device of the present invention differs from the conventional method in which a grass bale is placed on a turntable and wrapped with a strip of film, and the grass bale is rolled on the ground while surrounding the grass bale. A conventional method and device that allows a human operator to quickly wrap a hay bale while remaining on the tractor by wrapping the hay bale with a film attached to both lower ends of an inverted U-shaped arm that rotates. You can get excellent effects that you couldn't get with other methods.

[Brief explanation of the drawing]

1 and 2 are a plan view and a side view of an apparatus according to an embodiment of the present invention, FIGS. 3 and 4 are schematic diagrams showing the method of the present invention, and FIG. 4 shows the upper surface of the grass bale while it is being wrapped around a film. In the figure, numeral 10 is a frame, 11 is an upper beam,
12 is the lower beam, 14 is the wheel, 20 is the grass bale, 2
4 is a guide roll, 25 is a cutting lever, 27 is a hydraulic cylinder for the cutting lever, 29 is a hydraulic cylinder for the groove, 30 is a door,
32 is a guide roll, 34 is a hydraulic motor, 35 is an arm,
37 is a stretch roll, 39 is a hanging part, 40 is a film roll, and 41 is a film. Applicant: Fuenon Memro Co., Ltd. Memro Spy Co., Ltd.

Claims (1)

[Claims] 1) A method of wrapping a grass bale rolled up into a cylindrical shape by wrapping a film pulled out from a synthetic resin film roll, the method comprising: wrapping the grass bale placed on the ground with a bottomless frame; An inverted U-shaped arm that revolves around the grass bale is hung from the frame, and the film roll is attached to both hanging parts of the arm so that it can be rewound freely, and the leading end of the film pulled out from the film roll is A guide roll is attached to a frame and is in contact with the circumferential surface of the grass bale, and the frame is moved in the rolling direction of the grass bale, and while the grass bale is rolled through the guide roll, the arm A method for wrapping a grass bale, which comprises: rotating and wrapping two films unwound from two film rolls around the grass bale. 2) The method of wrapping a grass bale according to claim 1, characterized in that the film pulled out from the film roll is passed between a pair of stretch rolls and wrapped around the grass bale while being stretched. 3) Attach a cutting lever that can be raised and lowered to the frame, lock the tip of the film to the lever at the start of winding, and raise the lever to cut the film between the grass bale and the film roll at the end of winding. A method of wrapping a grass bale according to claim 1, characterized in that: 4) A frame that can be directly connected to the tractor and has no bottom or rear surface when viewed from the tractor side, a pair of wheels attached to the lower beam of the frame, and a guide roll rotatably attached to the lower beam as well. , an inverted U-shaped arm rotatably attached to the upper beam of the frame, a film roll attached to both hanging parts of the arm, and a film roll attached to the lower left and right beams so as to be movable up and down. A pasture bale wrapping device comprising: a cutting lever, and a hydraulic device connected to a hydraulic power source of the tractor to drive the arm and the cutting lever. 5) The grass bale wrapping device according to claim 4, characterized in that a pair of stretch rolls for stretching a film are provided on both hanging portions of the arm. 6) The pasture bale wrapping device according to claim 4, wherein a door that can be opened and closed by a hydraulic device is provided on the rear surface of the frame, and a guide roll that contacts the pasture bale is attached to the door.