JPH0445486Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is used in a roll baler that compresses and packs collected materials such as cut down grass and threshed straw left on the ground. This invention relates to a twine supply device that wraps twine around a formed bale (collection) and packs it.

(Prior Art) As a twine supply device for a roll baler, a structure described in Japanese Utility Model Application Publication No. 193739/1983 is known.

This twine supply device is provided with a twine feed roll that feeds out twine above the intake port of a bale forming chamber that compresses and molds the collected material into a roll shape.
When packing a bale, the twine feed roll drops the twine in front of the intake of the bale forming chamber and feeds it into the bale forming chamber. When the bale begins to wrap around the bale, the feed roll stops feeding out the twine and rotates the bale. The twine drawn in along with the bale is caught by a twine guide that reciprocates in the lateral direction of the bale forming chamber and is fed laterally, so that the twine is wound along the longitudinal direction of the bale.

(Problem to be solved by the invention) When the twine is fed out to the front of the inlet with the twine feeding roll, the twine delivery speed is faster than the speed at which the collected material is taken into the bale forming chamber. Looseness occurs. This slack in the twine causes the twine to bend in various directions, but depending on the direction of bending, the twine guide moves back and forth from side to side without catching the twine, causing the twine to bend in the longitudinal direction. It becomes a state where it is not wound along. When the bale in such a state is taken out from the bale forming chamber, it loses its shape and cannot be taken out.

For this reason, in the present invention, the twine fed out by the twine feed roll is reliably caught by the twine guide, and the twine is fed horizontally so that the bale can be reliably packed.

(Means for Solving the Problems) Therefore, in the present invention, a
In a roll baler equipped with a twine traversing device 46, twine feeding rolls 55, 56
Two rods 58 and 59 are installed horizontally in front and back to receive the twine T sent out from the twine T, and the tip of the twine guide 51, which hooks the twine T and moves back and forth in the left and right direction of the bale forming chamber 5, It was constructed by intervening between rods 58 and 59 of the book.

(Operations and effects of the invention) The twine T fed out by the twine feeding rolls 55 and 56 passes over the two rods 58 and 59 and enters the intake port 25 of the bale forming chamber 5. In this case, even if the twine T becomes loose, the tip of the twine guide 51 intervenes between the rods 58 and 59 that receive the twine T, so the twine guide 51 will surely catch the twine T. This means that the twine T can be reliably wrapped along the longitudinal direction of the veil B.

(Example) Next, an example of the present invention will be described with reference to the drawings.

Machine platform 2 equipped with a traveling device consisting of crawler 1
A pick-up device 3 is installed in front of the machine 2.
A bale forming chamber 5 is formed inside the bale machine frame 4 mounted above, and a conveying device 6 is provided between the bale forming chamber 5 and the pick-up device 3. Further, on the side of the bale machine frame 4 on the machine stand 2, a driving frame 8 having a prime mover 7 mounted therein is provided.

In the pick-up device 3, a large number of pick-up rods 10, which are arranged in a horizontal direction and protrude radially from between each of a plurality of arc-shaped guide rings 9 arranged in a horizontal direction, rotate forward and upward to pick up the collected items on the ground. The upper part of the side frame 11 erected on both the left and right outer sides of the plurality of arc-shaped guide rings 9 is extended forward, and the pick-up device 3 is covered with this overhang to prevent it from scattering. The plate 12 is pivotally connected by a support shaft 13 so as to rotate upward. Reference numeral 14 denotes a support piece that receives the rear lower part of the scattering prevention plate 12. Reference numeral 15 denotes a front cover plate such as a rubber plate that covers the front side of the raking rod 10. The corner C between the front vertical edge A of the left and right side frames 11 and the lower horizontal edge B of the front overhang is curved in an arc shape. This makes it difficult for collected items to get caught, and the inner edge of the side frame 11 also extends inward in an arc shape to prevent collected items from getting caught.

The conveying device 6 sends the collected material picked up by the front pick-up device 3 into the rear bale forming chamber 5, and is equipped with an endless chain 18 that is wound around sprockets 16 and 17 attached to the front and rear rotating shafts on the left and right sides. , 18, bar-shaped carriers 19 and bar-shaped carriers 20 with protrusions are alternately placed horizontally at regular intervals.

Above this conveyance device 6, a plate-shaped pressing tool 21 is provided.
and rod-shaped pressing tools 22 are arranged at regular intervals in the horizontal direction.
When the amount of collected items increases, both the rod-shaped pressing tool 22 and the plate-shaped pressing tool 21 perform a pressing action.

The bale forming chamber 5 is formed inside a fixed machine frame 23 on the front side and a movable machine frame 24 on the rear side.

On the fixed machine frame 23 side, an intake port 25 and the intake port 2 are provided.
5 Two rolls for bale forming 2 suspended horizontally above
6, 26, semicircular side walls 27, 2 fixed on the left and right sides
7. The rear end of the conveying device 6 and the upper end of the bundling device 28, which will be described later, form the front half of the bale forming chamber 5.

The movable machine frame 24 has an upper rotating shaft 29 horizontally mounted on the fixed machine frame 23 side on the left and right sides, and a movable machine frame 2.
Rod-shaped conveyors 34 are hung horizontally at regular intervals on endless chains 33 and 33 that are wound around sprockets 31 and 32 that are attached to the lower rotating shaft 30 that is hung horizontally on the 4th side, respectively, and the inner cavity side is fixed to the left and right sides. A bundling device 28 curved in an arc along the outer periphery of semicircular side walls 35, 35, and semicircular side walls 35, 3 on the left and right sides.
5 forms the rear half of the veil forming chamber 5.

The bundling device 28 may be constructed by arranging a plurality of the bale forming rolls 26 in an arc shape.

The movable machine frame 24 rotates upward about an upper rotating shaft 29 to open the bale forming chamber 5 rearward. 36 is a handle for opening and closing.

The outer peripheries of the fixed machine frame 23 and the movable machine frame 24 are covered with cover plates 37 and 38, respectively, to prevent dust contained in the collected material from coming out. In addition, a cover plate 39 that covers the upper part of the rear end of the bale forming roll 26 and the bundling device 28 is pivotally connected to a support shaft 40, and is designed to protect the bale-forming roll 26 and the bundling device 28 from being collected accidentally from the gap between the bundling roll 26 and the back end of the bundling device 28. It is pushed and rotated upward so that the collected material is discharged to the outside.

As shown in FIGS. 4 and 5, the bale forming rolls 26, 26 are made by forming two arc-shaped pieces 41, 42 into a cylindrical tube. A flange-like plate body 45 having a shaft support 44 consisting of a rotating shaft protruding from both sides of the cylindrical body 43 is integrally fixed to the body 43 by welding.

Note that the shaft support 44 may be a bearing that receives the rotating shaft.

At the front of the fixation frame 23 and above the transport device 6, there is a
A twine-T transverse feed device 46 is provided.

As shown in FIG. 6, this twine traversing device 46 has an endless chain 50 wound around sprockets 48 and 49 pivotally supported on both left and right sides in a case 47, and a twine guide 51 engaged with the endless chain 50. is moved back and forth to the left and right as shown by a trajectory 52.

Rotating shaft 5 with one sprocket 49 attached
3 is attached with a pulley 54 having large and small grooves around which the twine T is wound, and when the twine T is forcibly pulled out, the pulley 54
rotates to drive the endless chain 50.

Reference numerals 55 and 56 are rolls for feeding out the twine T. One feeding roll 55 is appropriately driven by a rotating shaft 57, and the other feeding roll 56 presses one feeding roll 55 so as to sandwich the twine T.

The tip of the twine guide 51 is sandwiched between two rods 58 and 59 that are horizontally suspended in the front and rear, and the twine guide 51 reliably catches the twine T that crosses over the two rods 58 and 59. That's what I do.

Reference numeral 60 denotes a cutting blade that cuts the twine T after the twine guide 51 has made one reciprocation after wrapping the twine around the bale B.

The twine storage section 61 is provided in the front part of the driving frame 8, and the twine T pulled out from the twine roll 62 in this twine storage section 61 can be stored in the twine storage section 61.
is wound around the pulley 54, passed through the guide 63, and sandwiched between the feed rolls 55, 56, and further hung horizontally on the guide rods 58, 59 so as to hang slightly onto the conveying device 6. Then, when the collected material is compressed into a roll shape in the bale forming chamber 5,
The feed roll 55 is driven to drop the twine T onto the conveying device 6, supply it into the bale forming chamber 5, and wrap it around the bale B. Then Twine T
is pulled out by the rotation of the bale B, so the drive of the delivery roll 55 is stopped. On the other hand, Twine Guide 5
1 hooks the twine T and reciprocates once, then the twine T is cut by the cutting blade 60 and stops, completing the packing of the bale B.

At the rear of the fixed machine frame 23 and below the movable machine frame 24, guide tools 64 and 65 are provided for receiving the left and right lower side parts of the bale B rolling out from the bale forming chamber 5 and guiding it to the ground below.

In the illustrated embodiment, the guide tools 64, 65 are
One is a plate and the other is a rod, and one of the rod-shaped guides 65 is bent downward so that its vertically upright part can be rotated left and right. It can be made higher or lower than the guide surface.

The action of these guide tools 64, 65 is shown in FIGS. 7 and 8.
As shown in FIGS. 9 and 9, by making the rod-shaped guide tool 65 on the right side higher than the plate-like guide tool 64 on the left side when viewed from the rear of the machine stand 2, the bale B falls to the left side, and by lowering it, Veil B will fall to the right. Furthermore, by increasing the height difference between the left and right guide tools 64 and 65, it is possible to release the bale B while standing it on the ground.

Note that the plate-shaped guide tool 64 on the left side may be formed into a rod shape like the rod-like guide tool 65 on the right side.

A driving frame 8 provided on the side of the bale machine frame 4 is equipped with a prime mover 7 inside, and at the rear upper part there are a running clutch lever 66 for connecting/disconnecting the running clutch of the traveling device, and side clutch levers 67, 6 for changing the running direction.
7. A control operation unit 70 is provided, which includes a twine clutch lever 68 that drives the payout roll 55 of the twine traversing device to start supplying the twine T, a clutch lever 69 that cuts off and on the driving of the bundling device 28, and the like. Further, on the front side of the driving frame 8, a twine storage section 61 for storing the twine roll 62 is provided at a position substantially right beside the twine traversing device 46, and the upper cover plate 71 of this twine storage section 61 is made transparent. The operator standing at the rear of the driving frame 8 can check the extended state of the twine T.

To perform collection work with the roll baler configured as described above, proceed as follows.

Pickup device 3, conveyance device 6, bundling device 2
8. When the machine base 2 is run while driving the bale forming roll 26, the collected materials picked up from the ground by the pick-up device 3 are sent into the bale forming chamber 5 by the conveying device 6 and compressed into a roll shape. be done.

When the collected material is compressed to a predetermined pressure, the machine 2 stops running, and the twine clutch lever 68 is operated to send the twine T into the bale forming chamber 5, where it is wrapped around the outer circumference of the rolled bale B and packed. do. After that, the driving of the bundling device 28 is stopped and the movable machine frame 2
4 is rotated upward to release the packed bale B from inside the bale forming chamber 5 onto the ground while being guided by guide tools 64 and 65.

Furthermore, in order to perform the collection work, it is sufficient to drive the bundling device 28 and make the machine 2 travel.

Note that the reason why the bundling device 28 is stopped when opening the bale forming chamber 5 is to safely take out the bales B. However, if the bale forming chamber 5 is opened while the bundling device 28 is driven, the bale will be removed. This may be used because the release of B is ensured and there is no need to manually draw it out.

The bundling device 28 is driven and stopped by the movable machine frame 2.
It may be linked to the opening/closing operation of step 4.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a side sectional view of the whole, Fig. 2 is a plan view of the whole, Fig. 3 is a rear view of the whole, and Fig. 4 is a partially enlarged view. Front sectional view,
Fig. 5 is an enlarged side view of a part, Fig. 6 is an enlarged front view of a part, Figs. 7 and 8 are rear views of a part showing an operating state, and Fig. 9 is a part showing an operating state. FIG. 5...Bale forming room, 25...Intake port, 46...
...Twine lateral feed device, 51...Twine guide, 55, 56...Twine feeding roll, 5
8,59... Rod.

Claims (1)

[Scope of utility model registration request] A twine cross-feeding device 46 is installed above the intake port 25 of the bale forming chamber 5 for compression-molding the collected material into a roll shape.
In the roll baler, two rods 58 and 59 are installed horizontally in the front and back to receive the twine T sent out from the twine feed rolls 55 and 56, and the twine T is hooked and moved in the left and right direction of the bale forming chamber 5. A twine supply device for a roll baler in which the tip of a reciprocating twine guide 51 is interposed between the two rods 58 and 59.