JPH0523041A - Wrapping machine for roll bale - Google Patents

Abstract

PURPOSE:To efficiently wind role bale by automatically taking in the roll bale from the front side of the roll bale wrapping machine body, bringing it upward onto a bale-supporting plate and discharging the roll bale to the rearward of the machine body after completion of wrapping. CONSTITUTION:The body frame 1 of a running machine body (a) connected and hauled by a tractor vehicle is formed into a structure having a longitudinal inner hollow part through which roll bale (B) can pass in the longitudinal direction and a lift roller (K) revolving from the upper front position to the rear part side of the inner hollow part of the body frame 1 while revolving to the downward is attached on the front side thereof. A bale-supporting plate (C) is attached to the bottom part of the inner hollow part of the body frame 1. The roll bale (B) allowed to stand in the field can be charged from the front side of the machine body (a) to a bale-supporting plate (C) of the machine body (a) by actuation of the lift roller (K) while adjusting the traveling direction of the machine body (a) to the direction perpendicular to the axial line of the roll bale (B). After completion of wrapping work, the roll bale (B) is discharged to the rearward of the machine body (a) by operation of the above-mentioned lift roller (K).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll bale of grass, which has been mowed in a field and rolled into a roll by a roll baler, for aging it into a high quality silage. The present invention relates to an improvement of a roll bale wrapping machine used for winding and wrapping a film.

[0002]

2. Description of the Related Art A wrapping machine A for wrapping a roll bale, in which a plastic stretch film is wound around the outer periphery of a roll bale formed of grass, is shown in FIG. 1 and FIG. There are a second type shown in FIG. 3, a third type shown in FIG. 4, and a fourth type shown in FIG.

The first type shown in FIGS. 1 and 2 is a stationary type, in which a turntable b is swiveled by a vertical shaft on an upper surface of a machine body a which can be fixed at a desired location. The turntable b is freely supported, and the turntable b is provided so as to be capable of rotating the dump. The bail support base c is mounted on the upper surface of the turntable b, and the turntable b is mounted.
A drive mechanism d for rotating the bail supporting base c while rotating the base around the supporting shaft, and a stretching unit e for feeding the stretch film F wound around the peripheral surface of the roll bale B placed on the upper surface of the bail supporting base c. And are mounted on the machine body a, and the roll bale B is placed on the bail support c by a front loader mounted on a tractor (not shown) and packaged. The finished roll bale B is discharged by rotating the dump of the turntable b.

In the second type shown in FIG. 3, the machine body a on which a turntable b supporting a bail support base c is supported is mounted via a three-point link hitch mounted on the rear part of the machine body of the tractor. Connected to the body of the tractor in a semi-directly mounted state,
Roll bale B on bale support c on turntable b
When mounting the vehicle, the front end side of the machine body a is lifted by the lifting operation of the three-point link hitch, and the turntable b is moved about 90 degrees.
The rear end side of the machine body a is brought close to the roll bale B placed on the ground in this state,
The grip bail disposed above the turntable b is moved up and down to hold the roll bale B from above, and in that state, the turntable b is returned to a horizontal posture, and the wrapping is completed. The roll bale B is discharged by inclining the turntable b.

The third embodiment shown in FIG. 4 is a towed type in which a machine body a for supporting a turntable b supporting a bail support base c is connected and towed after the machine body of a tractor. The roll bale B is placed on the upper surface of the support c by the loading device g mounted on the machine body a, and the roll bale B that has been wrapped is discharged.
In this embodiment, the dump is rotated by the turntable b.

The fourth type shown in FIG. 5 is a guide roll that abuts against the peripheral surface of the roll bale B on the bottom side of the machine body a where the bottom surface of the tractor T which is connected to the rear surface of the machine body is pulled downward. The h.i is provided in a pair in the front and rear with an interval for holding the roll bale B from the front and back, and the guide roll i located at the rear of the guide rolls h.i rotates upward to the rear surface side of the machine body a. When the roll bale B is to be taken in while being supported by a freely provided gate j, the gate j is rotated upward and the rear guide roll i is pulled up as shown in FIG. By reversing, it is housed in the machine body a as shown in Fig. 4B, then the gate j is closed as shown in Fig. 5C, and the front and rear guide rolls h.i with the lower surface of the roll bale B grounded. Hold from the front and back In this state, the end of the stretch film F fed from the stretch unit e mounted on the machine body a in this state is bound to the peripheral surface of the roll bale B to move the tractor T forward or backward. Then, while the rolling bail B is guided by the front and rear guide rolls h and i to roll on the ground surface, the stretching units e and e are rotated to rotate the support frame of the stretching unit e and e, and the circumference of the bale B is rolled. The surface is rotated so that the surface is swung, and the packaging is performed. When the packaging process is completed, the stretch film F is cut as shown in FIG. 5D and the gate j is opened and rotated as shown in FIG. By pulling up the rear guide roll i and then advancing the tractor T from this state so that the roll bale B that has been wrapped is left behind the machine body a and taken out. It is intended.

[0007]

In the conventional roll bale lapping machine A of the first type shown in FIGS. 1 and 2, the roll bale B is placed on the bail support c. However, due to the problem that it requires a front loader and the constraint that it is necessary to perform wrapping work near the storage place because it is a stationary type, it takes a lot of time to carry the roll bale, There is a problem that efficiency does not increase.

Further, the second type shown in FIG. 3 and the fourth type shown in FIG. 5 move the tractor backward while loading the roll bale B while backing the machine body a. Since the roll bale B is taken in from the rear end side of the machine body a, there is a problem that the operator's visual confirmation is difficult and the operability is poor.

The third type shown in FIG. 4 is
Since the roll bale B is loaded from the side of the bail support c on the bail support c supported on the machine body a,
By rolling a roll baler connected to the tractor, the grass bale is formed into a roll bale and left to stand in the field. The machine a is run in a direction orthogonal to the running direction of the tractor. Since B is to be loaded, the work is carried out in a state where the surface of the field has large irregularities, and there is a problem in that it is difficult for the machine body a to travel.

The present invention has been made in order to solve these problems existing in the conventional means, and a lapping machine which is connected to a towing vehicle such as a tractor and towed by a roll baler is used as a bale. The roll bale that has been left in the field is lapped on the upper surface of the bale support that is supported by the machine body of the wrapping machine by running in the direction of the row of the roll bale that has been molded and left in the field. The purpose of the present invention is to provide a new means for automatically loading and wrapping rolled bale from the front side of the machine body to the rear of the machine from the rear side of the machine body. To do.

[0011]

In the present invention, as a means for achieving the above-mentioned object, the roll bale passes in the front-rear direction through the main body frame of the machine body which is connected to the towing vehicle and is towed. As shown in the figure, a lift roller is formed on the front side of the main frame so that the lift roller rotates downward from the front upper position and rotates to the rear side of the main frame. The present invention proposes a roll bale wrapping machine characterized in that a bail support is mounted on the bottom of the.

[0012]

Embodiment 1 Next, an embodiment will be described in detail with reference to the drawings. In addition,
As for the reference numerals in the drawings, the same reference numerals are used for components having the same effects as those of the conventional means.

FIG. 6 is a perspective view of a lapping machine A embodying the present invention. In FIG. 6, a is a machine body, c is a bail support, e is a stretching unit, and k is a lift roller.

In the machine body a, a connecting rod 10 provided at the front end of the main body frame 1 is connected to a hitch of a towing vehicle such as a tractor and pulled, whereby running wheels 11 provided on both left and right sides of the main body frame 1. It is made to be a towed type.

The body frame 1 is framed in a tunnel shape so that the roll bale B can be pulled out in the front-rear direction. The lift roller k described above has a base end on the front end side of the main body frame 1 and a base end on the left and right on the upper edge side of the support shaft 20.2.
A pair of lift arms 21 and 21 are provided on the left and right so as to rotate in the front-rear direction while being pivotally supported on 0. Hydraulic cylinder 2 provided separately between the arms 21 and 21
Due to the expansion and contraction operation of 2.22, the lift arms 21 and 21
By rotating as shown in FIGS. 7 to 12,
From the front upper position of the opening on the front side of the body frame 1,
It passes through the opening on the front side and is displaced to a position facing above the upper surface of the bail support c supported on the bottom of the body frame 1.

The connecting rod 10 provided on the front end side of the main body frame 1 is mounted on one side in the left-right direction of the main body frame 1, and the connecting hitch 1 provided on the connecting rod 10 is provided.
Connect 0a to the rear hitch of a towing vehicle such as a tractor,
When the main body frame 1 is towed and run, the main body frame 1 is offset in the left-right direction with respect to the traveling path of the towing vehicle so that the front of the opening on the front side of the main body frame 1 becomes a free space. is there.

The bail support base c provided on the bottom side of the main body frame 1 is, as shown in FIG.
A support belt 32 is endlessly wound between a drive roll 30 which is fixedly supported on the rear end side and axially supported, and a floating roll 31 arranged in front of the drive roll 30. By driving the drive roll 30 by a hydraulic motor (not shown) mounted on the main body frame 1 so as to operate by the hydraulic pressure supplied from the hydraulic device provided on the towing vehicle side, the support belts 32 ... The roll bale B, which circulates and rotates and is placed on the upper surface side thereof, acts to roll on the spot.

The bail support base c is supported by the body frame 1 in a fixed position. Therefore, in this embodiment, there is no component corresponding to the turntable b in the conventional means. However, the drive roll 30 that supports the support belt 32 of the bail support c
Among the idle rolls 31, the idle roll 31 located at the front is pivotally supported by a pivot end of an arm 34 which is pivotally mounted on the main body frame 1 so as to be pivotable up and down about a pivot 33. Then, the arm 34 is supported by the main body frame 1 so as to freely move up and down by the vertical rotation of the arm 34, and is urged to the rising side by a spring 35 provided between the main body frame 1 and the arm 34. is there. And this
The roll bale B taken into the inner cavity of the main body frame 1 from the opening on the front side of the main body frame 1 is operated by the lift roller k by the rotation of the lift arms 21 and 21 described above.
When the roll bail B is pushed toward the upper surface of the bail support c, the lower peripheral surface side of the roll bail B rides on the floating roll 31, so that the spring as shown by the chain line in FIG. The roll bale B moves downward against the urging force of the roll belt 35, the roll bale B correctly rides on the upper surface of the bearing belt 32, and the weight of the roll bale B is distributed to the drive roll 30 side. It acts so as to rise to the state of the solid line in FIG. 10 and press the support belt 32 against the lower peripheral surface side of the roll bale B.

The stretch unit e includes a roll 40 for loading a bundle of stretch film F (see FIG. 1) wound on the roll and a braking roll 41 for stretching the stretch film pulled out from the roll to a predetermined degree of tension. It is an ordinary one equipped with the above-mentioned bail support c
So as to circulate around the outer periphery of the roll bale B mounted on the upper surface of the main body frame 1, the rotary end of a hanger-shaped rotary arm 43 pivotally supported by a support shaft 42 is supported on the upper part of the main body frame 1.
By rotating the support shaft 42 by driving a hydraulic motor M1 mounted on the body frame 1,
When 3 rotates, the stretch film F is wound around the outer peripheral surface of the roll bale B placed on the upper surface of the bail support c.

The hydraulic motor M1 for rotating the rotating arm 43 is driven together with the hydraulic motor M2 for driving the drive roll 30 by the pressure oil introduced from the hydraulic device provided on the side of the towing vehicle. M1
As shown in FIG. 14, M2 is connected in series to the hydraulic circuit of the above-mentioned hydraulic device so that an operation synchronized with the rotation of the bail support c can be obtained. .

Reference numeral 5 is a tie-and-cut unit provided on each of the left and right sides on the rear side of the main body frame 1, and when the winding of the stretch film around the peripheral surface of the roll bale B is completed, the feeding side of the stretch film is
Place it on the clamping surface 50 of this tie and cut unit 5,
By actuating and sandwiching the clip arm 51, the stretch film is cut from the roll bale B side and at the same time, the feeding end is held.

Reference numeral 12 denotes a hydraulic cylinder for rotating the connecting rod 10 mounted on the front end side of the main body frame 1 about the support shaft 13 to change the angle of the connecting rod 10 with respect to the main body frame 1 as desired. is there. Further, 15 is a guide roll provided on the front surface side of the bail support base c, and 16 is an auxiliary roll pivotally supported on the lower surface side of the bail support base c so as to support the intermediate portion of the support belt 32.

[0023]

The device of the embodiment thus constructed operates as follows. When performing the wrapping work of the roll bale B that has been formed into a bale and left in the field, the towing vehicle is operated to pull and drive the machine body a to the rear of the roll bale B that is left in the field. The machine body a is positioned.
The traveling direction of the machine body a at this time is a direction orthogonal to the axial direction of the roll bale B left in the field. Also,
At this time, the lift arm 21 is rotated upward as shown in FIG. 7 to open the opening on the front side of the main body frame 1 of the machine body a.

Next, when the roll bale B is positioned in front of the opening on the front side of the main body frame 1, the traveling of the machine body a is stopped and the lift arm 21 is moved.
Is operated, the roll bale B is pushed backward by the lift roller k as shown in FIGS. 8 and 9, and is loaded on the upper surface of the bail support c as shown in FIG.

Next, when this state is reached, the stretch film F fed from the stretch units e.e.
The feeding end of the roll bale B is tied to the peripheral surface of the roll bale B, and the drive roll 30 of the bail support c and the stretching unit e.e.
The hanger-shaped rotating arm 43 that supports the and is driven and rotated to perform the lapping operation.

Next, when this work is finished, the stretch film F is cut, and the rotary arm 43 is placed in an oblique posture with respect to the machine body a in plan view so that the stretch units e, e do not get in the way. 21
Is further rotated rearward as shown in FIG. 11, whereby the roll bale B for which the lapping work has been completed is discharged to the rear of the machine body a from the opening on the rear surface side of the main body frame 1 (FIG. 12). .

[0027]

Second Embodiment Next, FIGS. 15 and 16 show another embodiment. In this embodiment, the bail support base c is composed of a drive roll 30 and a lift roller k that has taken in the roll bale B, so that the idle roll 31 and the support belt 32 and the support belt 32 in the above-described embodiment are formed. This is an example in which the guide roll 15 and the auxiliary roll 16 are omitted, and since the rest of the configuration is the same as that of the above-mentioned embodiment, the same reference numerals are given to the components having the same effect, and detailed description will be given. Omit it.

[0028]

In this embodiment, when the loading operation of the roll bale B on the bail support c is performed by the operation of the lift arms 21 and 21, when the work is completed, the bail support that simultaneously supports the roll bale B is carried out. The table c is composed of the lift roller k that has moved the roll bale B and the drive roller 30, so that the mechanism can be remarkably simplified and adapted to the lapping work of the small roll bale B.

[0029]

As described above, the roll bale lapping machine according to the present invention moves forward and backward so that the roll bale B passes in the front-rear direction through the main body frame 1 of the machine body a which is connected to a towing vehicle and runs. A lift roller k that is formed in a detached shape and that rotates to the rear side of the inner cavity of the main body frame 1 while rotating downward from the front upper position is mounted on the front side of the inner surface of the main body frame 1. Since the bale support c is mounted on the bottom of the roll bale B, the roll bale B left in the field is made to have the traveling direction of the machine body a orthogonal to the axis of the roll bale B. From the front side of the machine body a, the lift roller k may be operated to mount it on the bail support base c in the machine body a, and after the lapping work is completed, the lift roller k may be operated to move it to the rear of the machine body a. Discharging It becomes so that.

[Brief description of drawings]

FIG. 1 is a perspective view of a conventional lapping machine.

FIG. 2 is a perspective view showing a state in which the above turntable is dump-rotated.

FIG. 3 is a perspective view of another conventional lapping machine of another form.

FIG. 4 is a perspective view of yet another conventional lapping machine.

FIG. 5 is an explanatory diagram of a stroke of a different conventional lapping machine.

FIG. 6 is a perspective view of a lapping machine according to the present invention.

FIG. 7 is a side view of the above.

FIG. 8 is an explanatory diagram of an operation of the above.

FIG. 9 is an explanatory diagram of an operation of the above.

FIG. 10 is an explanatory diagram of an operation of the above.

FIG. 11 is an explanatory diagram of an operation of the above.

FIG. 12 is an explanatory diagram of an operation of the above.

FIG. 13 is a side view of the bail support part of the above.

FIG. 14 is an explanatory diagram of a hydraulic circuit diagram of the above.

FIG. 15 is a perspective view of another embodiment of the above.

FIG. 16 is a side view of the above.

[Explanation of symbols]

A ... wrapping machine, B ... roll bale, F ... stretch film, T ... tractor, a ... machine, b ... turntable, c ... bale support, d ... drive mechanism, e ... stretch unit, f ... grip arm, g … Loading device, h
・ I ... guide roll, j ... gate, k ... lift roller,
DESCRIPTION OF SYMBOLS 1 ... Main body frame, 10 ... Connection rod, 10a ... Connection hitch, 11 ... Running wheel, 12 ... Hydraulic cylinder, 13 ... Support shaft,
15 ... Guide roll, 16 ... Auxiliary roll, 20 ... Spindle,
21 ... Lift arm, 22 ... Hydraulic cylinder, 30 ... Drive roll, 31 ... Floating roll, 32 ... Bearing belt, 33 ...
Support shaft, 34 ... Arm, 35 ... Spring, 40 ... Roll, 41
... Braking roll, 42 ... Spindle, 43 ... Rotating arm, 5 ... Tie-and-cut unit, 50 ... Clamping surface, 51 ... Clip arm, M1, M2 ... Motor.

Claims (3)

[Claims] 1. A main body frame 1 of a machine body a which is connected to a towing vehicle and travels while being drawn. The main body frame 1 is formed in a front-rear shape so that a roll bale B passes in the front-rear direction. Body frame 1 while rotating downward from the position
A roll bale wrapping machine characterized in that a lift roller k that rotates on the rear side of the inner cavity is mounted, and a bail support c is mounted on the bottom of the inner cavity of the main body frame 1. 2. A hanger-shaped turning arm 43 that turns by a vertical support shaft 42 is provided above the bail support c at the upper part of the main body frame 1, and the stretch unit e is provided at the turning end thereof. The support shaft 42 of the rotating arm 43
2. A roll bale wrapping system according to claim 1, wherein a hydraulic motor M1 for driving the bale support c and a hydraulic motor M2 for driving the drive roll 30 of the bail support c are connected in series to the hydraulic circuit of the hydraulic system. Machine. 3. The roll bale lapping machine according to claim 1, wherein the bail support c is composed of a drive roll 30 and a lift roller k which moves the roll bale B to a loading position.