JPH0543650Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a binding device for a roll baler, and more specifically, the invention is a binding device for a roll baler, and more specifically, it picks up straw grass such as straw and grass scattered in a field, and ties a string around the outer periphery of a bale formed in a roll shape. The present invention relates to a binding device for a roll baler that binds bales by winding them.

(Prior Art) The present applicant first provided a runner and a string cutter having a string feeding roller and a string guide, and wound the string around the bale by feeding out the string by driving the string feeding roller. We have proposed a bundling device for a roll baler in which the runner reciprocates in the width direction of the bale to change the winding position and bind the bale. (Jitsugan 61-37296
No. (Utility Model Application No. 62-148038)) (Problems to be solved by the invention) However, in the case of the above-mentioned binding device,
As a driving means for the reciprocating device of the runner, a worm is formed in the middle part of the drive shaft of the string feeding roller, and a worm gear that meshes with the worm is provided, so that the rotation axis of the worm gear is connected to the rotating shaft of the reciprocating device of the runner. Since it is configured to be linked to the drive system, an interlocking mechanism using a worm that is troublesome and requires precision is required in the middle of the drive shaft, resulting in a complex structure and complicated assembly work, resulting in high costs. It had the following problem.

The present invention was devised in view of the above-mentioned problems, and its purpose is to interlock the reciprocating device of the runner by utilizing the tensile force caused by the movement of the string, and to attach a worm to the drive shaft of the string feeding roller. It is an object of the present invention to provide a roll baler bundling device that has a simple structure and is inexpensive, without providing an expensive and complicated interlocking mechanism consisting of a worm gear and a worm gear.

(Means for solving the problem) The present invention includes a runner 14 having a string feed roller 11 and a string guide body 13, and a string cutter 15,
In a bundling device for a roll baler, in which the string is fed out by the drive of the string feeding roller 11 to wind the string around the bale, and the wrapping position is changed and tied by movement of the runner 14 in the bale width direction, the rotating body 20
A reciprocating device 16 is provided which reciprocates the runner 14 in the width direction of the bale by the rotation of the rotating body 20, and the rotating body 20 is provided with a part in the middle of the movement path of the string that reaches the string feeding roller 11. Wrap it around,
It is characterized in that the rotating body 20 can be rotated by movement of the string.

(Function) With the above configuration, when the string is fed out and wound around the bale by driving the string feeding roller 11, the rotating body 20 is rotated to follow the movement of the string using the tensile force caused by the movement of the string. The runner 14 of the reciprocating device 16 is reciprocated in the width direction of the bale by the following rotation of the rotating body, and the string guide body 1 provided on the runner 14
In step 3, the wrapping position of the string is changed in the width direction of the bale and the bale is tied.

(Embodiments) The roll baler bundling device according to the present invention will be described below with reference to embodiments shown in the drawings.

Figures 3 and 4 show the overall structure of the roll baler, in which a baler section 3 and a control section 4 equipped with an engine E are installed at the front and back positions on the upper part of the machine body 1, which is equipped with a traveling device 2 at the bottom. At the same time, the aircraft 1
A pick-up part 5 equipped with a pick-up finger 51 is provided at the front part of the pick-up part 5 so as to be vertically adjustable.

Further, the baler section 3 and the pick-up section 5
The straw picked up by the pick-up section 5 is transferred to a bale forming chamber 6 provided in the baler section 3.
A conveyor 7 is interposed between the conveyor 7 and the
The straw brought in is formed into a roll-shaped baler A in the bale forming chamber 6.

The conveyor 7 includes a main conveyor 7a extending from the pick-up section 5 to the inside of the baler section 3 and having a terminal end curved in an arc shape, and is disposed in front and back opposite to the main conveyor 7a. auxiliary conveyor 7b, and each of these conveyors 7a, 7
The veil forming chamber 6 is formed between the b.

The main conveyors 7a, 7b and the pick-up finger 51 are interlocked and connected to the engine E via an interlocking mechanism, and when the engine E is driven, both the conveyors 7a, 7b and the pick-up finger 51 are simultaneously driven to rotate. It is structured as follows.

Further, in the inner front part of the baler section 3 and near the bale forming chamber 6, as shown in FIG. A runner 14 having a string guide body 13 and a string cutter 15 are provided, and the string B is wound around the bale A by being driven by the string feeding rollers 11 and 12, and the string B is wound around the bale A, and the string cutter 15 A binding device is provided that changes the winding position and binds by reciprocating to and from. The string feeding roller 1
1 and 12 are provided so as to be able to approach and separate from each other, and
One of the rollers 11 is interlocked with the interlocking mechanism from the engine E to the conveyor 7, and is designed to let out the string B from both rollers 11 and 12 by operating the rollers 11 and 12 in close proximity.

Therefore, in the roll baler bundling device configured as described above, the rotating body 20 as shown in FIG.
A reciprocating device 16 is provided which reciprocates the runner 14 in the width direction of the bale by the rotation of the rotating body 20, and the rotating body 20 is provided with a part in the middle of the movement path of the string that reaches the string feeding roller 11. Wrap it around,
The movement of the string B allows the rotating body 20 to rotate.

Specifically, as the reciprocating device 16, as shown in FIGS.
8 and 19, an endless chain C is hung between these two sprockets 18 and 19, and a locking pin P is provided protruding from the chain C, and an engagement hole that engages with the locking pin P is provided. Frame-shaped runner 1 with 14a
4 is freely movably provided on the mounting body 17, and the runner 14 is configured to reciprocate in the bail width direction as the endless chain C rotates.

Also, the string B reaching the string feeding rollers 11 and 12
A support body 21 is attached to the front position of the drive sprocket 18 in the middle of the movement path, a support shaft 22 is fixed to the support body 21, and a rotating body 20 mainly consisting of a string pulley is mounted on the rotation shaft 22 with a bearing 23. A string B is wound around the rotating body 20, and the string B is connected to the string feeding roller 1.
1 and 12, and these string feeding rollers 11 and 1
When the string B is fed out by the string B, the rotating body 2 is
0, and the rotating body 20 was linked to the drive sprocket 18 of the reciprocating device 16.

In the embodiment shown in the figure, a clutch 24 is interposed between the rotating body 20 and the drive sprocket 18, and a string brake 30 is provided on the feeding path of the string B to apply a predetermined resistance to the string B. When the bale A is wrapped with a string B and tied, the clutch 24 is switched to the entry side using the string B that is tensioned between the wrapping portion and the brake 30 to prevent the reciprocating movement. The device 16 is configured to operate.

Further, a pawl clutch is used as the clutch 24, and a pawl 20a is provided on one side of the rotating body 20 as shown in FIG. A shifter 25 that extends coaxially to a nearby position and has a pawl 25a that engages with the pawl 20a is supported on a spline portion formed on the outer periphery of the extended shaft so as to be freely movable only in the axial direction. An actuation shaft 27 having a shift fork 26 for moving the shifter 25 is rotatably supported, and a clutch lever 28 having a guide portion 28a of the string B is fixed to the actuation shaft 27, so that the string B is tensioned.
the clutch lever 2 via the guide portion 28a.
8 is swung, the shift fork 26 moves the shifter 25 toward the rotating body 20 and engages the teeth 20a, 25a, thereby transmitting the power transmitted to the shifter 25 to the drive sprocket 18. It is designed to convey information.

The present invention is constructed as described above, and when a bale A of a predetermined finished diameter is formed in the bale forming chamber 6 and the bale A is to be bound by the bundling device, the string feeding rollers 11 and 12 are The string B is fed out by driving and rotated, and the string B is supplied to the bale A side by the main conveyor 7a, and the string B is hooked around the bale A and wound.

At this time, due to the tensile force accompanying the movement of the string B,
As the rotating body 20 around which the string B is wound follows the rotation, the string B wound around the bail A is tensioned between its winding portion and the string brake 30, and this tensioned string B , the clutch lever 25 of the clutch 24 is swung about the operating rod 27. This rocking of the clutch lever 25 causes the operating rod 2
7 swings to move the shifter 25 toward the rotating body 20, engage the teeth 20a of the rotating body 20 with the teeth 25a of the shifter 25, and rotate the rotating body 20. is transmitted to the drive sprocket 18 via the shifter 25 and the drive shaft 17a.

The runner 14 reciprocates in the bale width direction by rotation of the endless chain C driven by the driving sprocket 18, and the string B is wound over the entire length of the bale A by the string guide 13 provided on the runner 14. Then, veil A is tied.

Further, when the bail A is moved back by the string B,
In other words, when the bundling is finished, the string B is cut through the string cutter 15, and the tied bale A is cut.
A take-out door provided on the side of the bale forming chamber 6 is opened to take out the bale to the outside through the opening.

In the above embodiment, a clutch 24 that performs a switching operation using the tensioning action of a string is provided between the rotating body 20 and the reciprocating device 16, but the rotating body A configuration may be adopted in which the reciprocating device 16 is immediately interlocked with the rotation of the reciprocating device 20 .

(Effects of the Invention) As described above, the present invention includes the rotary body 20 as a reciprocating device for the runner 14 which has the string guide body 13 and moves in the bale width direction to change the winding position of the string around the bale. , the rotation of the rotating body 20 causes the runner 1 to
A reciprocating device 1 that reciprocates the bale 4 in the width direction of the bale.
6 is used, and the middle part of the moving path of the string leading to the string feeding roller 11 is wound around the rotating body 20 in the reciprocating device 16, so that the rotating body 20 can be rotated by the movement of the string. When the string is fed out to wind the string around the bale by driving the string feeding roller 11, the rotating body 20 is rotated in accordance with the following rotation using the tensile force accompanying the movement of the string. The runner 14 of the reciprocating device 16 can be reciprocated, and this allows the string to be moved reciprocally without providing an expensive and complicated interlocking mechanism consisting of a worm and a worm gear on the drive shaft of the string feeding roller as in the past. Rotating body 20 that rotates as it moves
need only be provided in the reciprocating device 16, so the structure can be simplified and the cost can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted perspective view of the bundling device according to the present invention, Fig. 2 is a vertical sectional side view of the main parts, Fig. 3 is a side view showing the overall structure of the roll baler, and Fig. 4 is a plan view of the same. be. 11... String feeding roller, 13... String guide body, 1
4...Runner, 15...String cutter, 16...Reciprocating device, 20...Rotating body.

Claims (1)

[Scope of utility model registration request] It is equipped with a runner 14 having a string feed roller 11 and a string guide 13, and a string cutter 15, and the string is fed out by the drive of the string feed roller 11 to wind the string around the bale, and the runner 14 moves the string in the bail width direction. A bundling device for a roll baler that changes the winding position by moving and bundling is provided with a reciprocating device 16 that includes a rotating body 20 and reciprocates the runner 14 in the width direction of the bale by the rotation of the rotating body 20. In addition, a binding device for a roll baler, characterized in that a part of the string that reaches the string delivery roller 11 is wound around the rotating body 20 in the middle of the moving path of the string, so that the rotating body 20 can be rotated by the movement of the string. .