JPH05336830A - Device for loading roll bale in wrapping machine - Google Patents

Abstract

PURPOSE:To inexpensively obtain a device for loading roll bale capable of carrying out loading operation of placing roll bales on a bale supporting stand of wrapping machine in excellent handleability. CONSTITUTION:A dump frame 2 is held on a machine frame (a) to be attached to the rear of a machine body of a tractor T in such a way that the dump frame is rotated for dump toward one side of the right and left of a machine frame (a) by operation of a hydraulic cylinder 3. A turn table (b) and a bale supporting stand (c) are supported on the dump frame 2 and a lift arm 5 standing in an elbow state from the side end part of the dump frame 2 in the back view is arranged at the side for rotation for dump at one side of the right and left of the dump frame 2 in such a way that the lift arm is located at the side rear of the dump frame 2 in the plane view. The left arm is connected and supported on the dump frame 2 in an integrated way and the lift arm 5 is equipped with bale holding arms 51 for scooping a roll bale B in a fork state projecting forward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a wrapping machine for winding and packaging a roll bale formed by winding grasses in a roll shape, and wrapping and wrapping a plastic film around the outer periphery of the roll bale in order to mature it into a high quality silage. The present invention relates to an improvement of a loading device for loading a roll bale on the lapping machine.

[0002]

2. Description of the Related Art Conventional lapping machines A include, for example, a first type shown in FIG. 1 and a second type shown in FIG.
There are some types.

A first type of lapping machine A shown in FIG. 1 is directly attached to the rear surface side of the body of a tractor through a three-point link hitch including a lower link, a top link, a lift arm and the like of the tractor. On a top surface of a machine frame a that is connected and mounted in a mounted state or a semi-directly mounted state, a turntable b that rotates with a vertical rotation axis line is mounted, and a horizontal rotation axis line is arranged in parallel on the upper surface thereof. A bail support c composed of a plurality of rotating rollers is mounted, and a stretch unit d for feeding a plastic film to the roll bale B mounted on the bail support c is mounted on the peripheral portion of the machine frame a. Installed above the bail support c
A grip arm e for pressing the roll bale B mounted on the bail support base c from the upper surface side is supported by a column which is erected from the frame of the turntable b so as to be able to move up and down.

The lapping machine A of the first type is equipped with a roll bale B on the upper surface of the bail support c of the lapping machine A so that the roll bale B can be mounted on the machine body of the agricultural tractor. By raising the point link hitch by operating the lift arm, the front end side (right end side in FIG. 1) of the machine frame a is lifted, and the turntable b on the upper surface of the machine frame a is tilted backward by about 90 degrees, In this state, the agricultural tractor is driven and run, and the rear end side of the machine frame a connected to the rear surface of the machine body is brought close to the roll bale B placed on the surface of the field and mounted on the machine frame a. By raising and lowering the above-mentioned grip arm e, the roll bale B is held on the upper surface of the bail support c, and the turntable b is returned to a horizontal posture from that state. . Also, when you finish the wrapping machine with plastic film, turntable b
Roll bale B which finished this wrap by inclining
To be discharged.

In the second type of lapping machine A shown in FIG. 2, a turntable b which turns with a vertical axis of rotation is provided on the rear surface of the body of the tractor, on the upper surface of a machine frame a to be pulled and connected. , A bail support in which a dump is rotatably mounted on a machine frame a, and an endless belt is wound around a plurality of rollers that rotate in parallel with a horizontal rotation axis on the upper surface side of the turntable b. A platform c is mounted, and a stretch unit d for feeding out a plastic film is provided on the peripheral portion of the machine frame a. Further, on the rear end side of the machine frame a, it is rotatable in two directions by two support shafts. In this embodiment, the loading device f including the arm is mounted so as to be able to move up and down.

In the second type of wrapping machine A, the loading of the roll bale B on the upper surface of the bail support c is carried out, and the machine frame a is placed on the ground surface of the field by driving the tractor. The roll bale B is moved closer to the roll bale B, and the arm of the loading device f is rotated to push the roll bale B from one side of the machine frame a to the upper surface of the bail support base c. The roll bale B that has been wrapped is discharged by rotating the dump of the turntable b.

[0007]

The means for loading the roll bale B in the conventional lapping machine A onto the upper surface of the bail support c is the same as in the first type of the lapping machine A. Lift the side, machine frame a
Assuming that the bail support c on the upper surface of the
Since the roll bale B is taken in by moving the tractor backward, it is difficult to visually check the operator, and there is a problem in operability.

Further, since it is necessary to assemble hydraulic cylinders for the turntable c and the grip arm e so as to move up and down independently of each other, the hydraulic circuit becomes complicated and the whole becomes expensive. Not only that, but because the operator changes the control lever of each hydraulic cylinder, the operation becomes complicated and the operability deteriorates.

The second type of lapping machine A
In the loading means for the roll bale B, the roll bale B is loaded on the bail support c from one side on the left and right in the traveling direction of the tractor by the operation of the loading device f independent of the turntable b. , The turntable b is rotated, and the stretch film fed from the stretch unit d is wrapped around the peripheral surface of the roll bale B to be wrapped. At this time, the loading device f is attached to the turntable b.
It is necessary to lower the loading device f in order to avoid the interference between the loading devices f. Since a hydraulic cylinder for this purpose is required separately from the hydraulic cylinder for raising and lowering the turntable b, the hydraulic circuit becomes complicated like the loading means in the lapping machine A of the first type described above. There is a problem of poor operability.

The present invention has been made in order to solve these problems occurring in the conventional means, and the loading work of the roll bale B onto the bail support c is
The operator operating the tractor makes the loading device good in operability without dismounting from the tractor, and making it possible to perform the visual inspection of the roll bale placed in the field appropriately. The purpose is to provide a new means to obtain at low cost.

[0011]

In the present invention, as a means for achieving the above-mentioned object, a dump frame is attached to a machine frame mounted on the rear portion of the body of a tractor by operating a hydraulic cylinder. The frame is mounted so that the dump can be rotated toward one of the left and right sides, the turntable and the bail support are supported by the dump frame, and the side on which the dump is rotated on one of the left and right sides of the dump frame, The lift arm rising from the side end of the dump frame in a rear view in an elbow shape is arranged so as to be positioned rearward of the side of the dump frame in a plan view so as to be integrally connected and supported to the dump frame. , A roll bale loading device in a lapping machine in which a bail support arm for picking up a roll bale is installed in a fork shape protruding forward. It is intended to cause.

[0012]

Embodiments Next, embodiments will be described in detail with reference to the drawings. The same reference numerals are used for the constituent members having the same effects as those of the conventional means.

FIG. 3 is a perspective view of the lapping machine A embodying the present invention when the roll bales B are being loaded, and FIG. 4 is a perspective view when the roll bales B of the same are supported. In the figure, a is a machine frame, b is a turntable mounted on the upper surface of the machine frame a with a vertical rotation axis so as to rotate, c is a bail support stand supported on the upper surface of the turntable b, and d is a bail. A stretch unit for feeding the plastic film F to the roll bale B mounted on the support base c as shown by the chain line in FIG.
Reference numeral 5 indicates a lift arm.

The machine frame a has a lower link hitch 10 and a top link hitch 11 mounted on the front end side (right side in FIGS. 3 and 4) of the body frame 1 thereof, as shown in FIG. As described above, the tractor T is connected to a three-point hitch formed by the lower links L1 and L1 and the top link L2 provided on the rear surface side of the body, and the lift arm of the tractor T is connected to the hitch so that the tractor T can move up and down. Furthermore, by providing auxiliary wheels 12, 12 on the rear end side of the main body frame 1,
Although the tractor T is connected to the body of the tractor T in a semi-directly mounted state, the auxiliary wheels 12 may be omitted and the tractor T may be directly connected to the body.

A turntable b mounted on the upper surface of the machine frame a
Is a conventionally known one that rotates about a vertical axis of rotation, but a dump frame 2 that freely pivots up and down around a fulcrum shaft 13 is supported by a main body frame 1, and a swivel mechanism 20 is mounted on the upper surface side of the dump frame 2. It is mounted so that it can swivel freely (Figs. 5 and 6). A hydraulic cylinder 3 that expands and contracts is mounted between the dump frame 2 and the main body frame 1, and the dump cylinder 2 is operated by the operation of the hydraulic cylinder 3 so that the dump frame 2 is centered on the fulcrum shaft 13 described above. I am trying to move.

The bail support c is mounted on the upper surface of the turntable b supported by the dump frame 2, which is the same as the conventionally known one.

The turntable b guides the stretch film F fed from the stretch unit to the roll bale B mounted on the bail support c on the upper surface of the turntable b and binds the stretch film F together. A tie and cut device 4 for cutting and assembling is supported.

The lift arm 5 carries out an operation of loading the roll bale B on the bail support c mounted on the upper surface of the turntable b, and the side of the fulcrum shaft 13 of the dump frame 2 described above. Directly connecting member 50 to the end of
As a result, in the rear view, the dump frame 2 is arranged in a posture in which it rises in an elbow shape from one side of the dump frame 2 toward the outside obliquely upward, and in plan view, as shown in FIG. As a state of being positioned on the rear side on the rotating side, it is integrally attached to and supported by the dump frame 2. And, in this lift arm 5,
Bail support arms 51, 51 for supporting the roll bale B
However, in the state in which the dump frame 2 is rotated by the dump as shown in FIG. 3 and the lift arm 5 is in the posture along the plane, the bail support c supported on the turntable b which is laid down sideways. A pair of forks are provided so that the sides of the can protrude forward. Further, when the roll bale B is placed on the upper surface of the fork-shaped bail support arms 51, 51, the roll bail B abuts against one axial end face of the roll bale B and the lift arm of the roll bale B is abutted. Stopper 52 that regulates forward and backward movement with respect to 5
Is installed.

The embodiment apparatus configured as described above operates as follows. When loading the roll bale B on the upper surface of the bail support base c, the hydraulic cylinder 3 is extended and the dump frame 2 is rotated by the dump.
As shown in FIG. 5 in a rear view, the lift arm 5 that is integrally connected to the vehicle is in a state along the ground surface GL of the field, and in this state, the tractor T is run to move the bail of the lift arm 5. Support arm 51, 51
However, in parallel with the axial direction w of the roll bale B placed in the field, the roll bale B is inserted into both left and right side portions on the lower surface side.

As a result, the pair of bail support arms 51, 51 hug the roll bale B so as to scoop it up, and when the roll bale B hits the stopper 52, the tractor T is stopped and then the hydraulic cylinder 3 The dump frame 2 to the ground surface G
While returning to the posture parallel to L, this dump frame 2
The lift arm 5, which is integrally connected with the lift arm 5, is rotated upright about the fulcrum shaft 13.

As a result, as shown in FIG. 6, the roll bale B is moved toward the bail support base c while being scooped up, and when the dump frame 2 is in a horizontal posture, the bail support base c is moved. It will be placed on the upper surface of.

At this time, the feeding end of the plastic film F pulled out from the stretch unit d is gripped by the tie-and-cut device 4, and in this state, the turntable b is rotated to move the plastic from the stretch unit d. The film F is pulled out and wound around the outer peripheral surface of the roll bale B on the bale support c, and the lapping work is performed.

Next, when the lapping work is completed, the hydraulic cylinder 3 is extended. As a result, the tie-and-cut device 4 grasps the feeding end of the plastic film F and simultaneously performs the cutting operation, and the roll bale B wrapped with the plastic film F rolls sideways.
It goes over the lift arm 5 and is discharged to the outside (FIG. 7).

Accordingly, in this state, the tractor T is moved to the position of the next roll bale B by the traveling of the tractor T, and the series of operations described above are repeated, so that the roll bale placed in the field one after another. It becomes possible for the operator to carry out loading, lapping, and discharging of B ... on the wrapping machine A by one man without the operator having to get off the truck.

[0025]

As described above, in the roll bale loading device of the lapping machine according to the present invention, the dump frame 2 is mounted on the machine frame a mounted on the rear portion of the machine body of the tractor T by the operation of the hydraulic cylinder 3. The dump frame is mounted so as to turn to the left and right sides of the machine frame a, the turntable b and the bail support c are supported on the dump frame 2, and the dump rotation is performed on the left and right sides of the dump frame 2. The lift arm 5 that rises in an elbow shape from the side end of the dump frame 2 in the rear view is arranged so as to be positioned rearward to the side of the dump frame 2 in the plan view, and is integrated with the dump frame 2 on the side toward which to move. Are connected and supported,
Since the bail support arms 51, 51 for picking up the roll bale B are mounted on the lift arm 5 in a fork shape projecting forward, the bail support c Utilizing the operation of the hydraulic cylinder 3 for rotating the dump truck, the loading of the roll bale B onto the bail support c is performed by the tractor T.
The operator who drives the vehicle can perform the rolling bale B while visually observing the roll bale B from the driver's seat of the tractor T without getting off the tractor T. Therefore, the work for loading the roll bale B into the lapping machine A can be obtained at a low cost, without a complicated device and operation.

[Brief description of drawings]

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

FIG. 2 is a perspective view of another conventional lapping machine according to another embodiment.

FIG. 3 is a perspective view of the lapping machine embodying the present invention when the roll bale is loaded.

FIG. 4 is a perspective view of the above wrapping machine when a roll bale is supported.

FIG. 5 is a rear view of the same lapping machine when the roll bale is loaded.

FIG. 6 is a rear view of the same lapping machine when the roll bale is loaded.

FIG. 7 is a rear view of the same lapping machine in a state in which the roll bale that has finished being wrapped is being discharged.

FIG. 8 is a plan view of the above wrapping machine in a state where the wrapping machine is connected to the tractor and the roll bale is being loaded.

[Explanation of symbols]

A ... Wrapping machine, B ... Roll bale, T ... Tractor, GL ... Ground surface, a ... Machine frame, b ... Turntable, c
... bail support, d ... stretch unit, e ... grip arm, f ... loading device, w ... axial direction, 1 ... body frame, 10 ... lower link hitch, 11 ... top link hitch, L1 ... lower link, L2 ... Top link, 1
2 ... auxiliary wheels, 13 ... fulcrum shaft, 2 ... dump frame, 2
0 ... Revolving mechanism, 3 ... Hydraulic cylinder, 4 ... Tie and cut device, 5 ... Lift arm, 50 ... Connecting member, 51 ... Bail support arm, 52 ... Stopper.

Claims (1)

[Claims] 1. A dump frame 2 is mounted on a machine frame a mounted on the rear portion of a machine body of a tractor T so that the dump frame 2 can be rotated toward one of the left and right sides of the machine frame a by the operation of a hydraulic cylinder 3. A turntable b and a bail support base c are supported on the dump frame 2, and the left and right sides of the dump frame 2 are used to perform the dump rotation. The lift arm 5 rising up to the side of the dump frame 2 is arranged so as to be positioned rearward of the dump frame 2 in a plan view so as to be integrally connected to and supported by the dump frame 2, and the bail support for scooping the roll bale B onto the lift arm 5. A roll bale loading device in a lapping machine in which arms 51 are mounted in a fork shape protruding forward.