JPH01240116A - Twine-feeding apparatus for roll baler - Google Patents

Abstract

PURPOSE:To confirm and alarm the hooking of a twine on a twine guide and to prevent the winding of a twine on one position, by placing a swivellable guide member and a sensor between a laterally reciprocating twine guide and a twine delivery roll. CONSTITUTION:When a collected object is compression-molded in the form of a roll, a twine T passes through a guide member 6 is transferred with delivery rolls 2, 3 into a bale-forming chamber and wound around a rotating bale. The stretched twine is hooked by a twine guide and laterally reciprocated 54. Since the guide member 6 passing through the twine is laterally swivellable, it is shifted according to the lateral motion of the twine guide 4 to actuate a sensor 8 and alarms the operator with buzzer, light, etc., that the twine is hooked on the twine guide. The winding defect of twine can be detected in advance by this mechanism.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a roll baler that collects harvested products such as cut down grass and threshed straw left on the ground and compresses and packs them into rolled bales. The bale is compressed into a roll in the bale forming room, and then the twine is wrapped around the entire width of the bale.

(Prior art) A twine feeding device for a roll baler is, for example,
It is described in Japanese Utility Model Publication No. 2-53659, Japanese Utility Model Application Laid-Open No. 61-193739, and the like.

Its structure consists of a delivery roll that forcibly supplies the twine into the bale forming chamber on the side of the bale forming chamber, and a twine guide that hooks the twine that comes out of the delivery roll, and this twine guide moves back and forth from side to side. However, the twine wrapping around the bale is done so that it spans the entire width of the bale.

(Problem to be Solved by the Invention) In the twine feeding device described above, the twine fed out by the delivery roll is first wound around the bale, and then the twine guide catches the twine and feeds it sideways. Sometimes twine doesn't catch. In this case, the twine is wrapped around one part of the bale, making it impossible to pack the entire bale, and when the bale forming chamber is opened, the part where the twine is not wrapped expands, making it difficult to close the bale forming chamber again. Become. Further, when a bale with a twine wrapped around only this one part is taken out from the bale forming chamber, the mold part becomes distorted and it becomes difficult to take out the bale.

(Means for Solving the Problems) Therefore, the present invention is configured as follows. That is, the twine (T) fed into the bale forming chamber 1 by the delivery roll 2.3 is caught and guided by the twine guide 4 that reciprocates left and right, so that the twine (T) is wrapped over the entire width of the bale (B). In the twine supply device for a roll baler, a guide body 6 that can swing from side to side is provided between the delivery roll 2.3 and the twine guide 4, and a sensor 8 for sensing the swing of the guide body 6 is provided. The purpose was to notify the supply status of Twine (T).

(Operations and Effects of the Invention) When the collected material is compression-molded into a roll shape in the bale forming chamber 1, the twine (T) passing through the guide body 6 is transferred to the delivery roll 2,
3, the rotating bale is supplied into the bale forming chamber 1 (
B) and the twine (T) in this pulled state.
) will be caught by the twine guide 4 and moved laterally, but since the guide body 6 passing through the twine (T) can swing left and right, it will swing as the twine guide 4 moves laterally, and the sensor will move horizontally. 8 is activated, and a buzzer, light, etc. are used to notify the operator that the twine guide 4 has caught the twine (T).

Therefore, after driving the delivery rolls 2 and 3, it is possible to reliably confirm that the twine (T) is being wound across the twine (T) by the twine guide 4, and if there is a defect, the twine (T) can be re-sent before opening the bale forming chamber 1. By supplying and wrapping T),
It is possible to eliminate unnecessary work such as opening the bale forming chamber 1, finding out that the wrapping of the twine (T) is defective, closing the bale forming chamber 1 again, and rewinding the twine (T). .

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

A machine base 12 equipped with a traveling device 11 consisting of a crawler 10
A raking VT device 13 is provided in front of the machine, and a bale forming chamber 1 is formed inside a fixed machine frame 14 and a movable machine frame 15 mounted on a machine stand 12. A conveying device 16 is provided between the two. Further, a prime mover 17 is installed inside the side portions of the fixed machine frame 14 and the movable machine frame 15 on the machine stand 12.
A driving frame 18 on which is mounted is provided.

The scraping device 13 includes scraping rods 20 that protrude radially from each arrangement gap of a plurality of arcuate guide rings 19 arranged laterally.
The guide ring 19 rotates from below to the front and upward to scrape up the collected materials on the ground. Board 2
2, and the front side is covered with a front cover plate 23 such as a rubber plate suspended from the scattering prevention plate 22. is provided with a freely rotating roller 26, and the part protruding outward from the side @ 21 of the collected material scraped up by the scraping rod 20 bends and contacts the roller 26, so that the side plate is rotated while the roller 26 is rotating. 21 so that they can be guided to the inside and smoothly rise to their true potential.

The conveyance device 16 sends the collected materials scraped up from the ground by the front scraping device 13 into the rear bale forming chamber 1, and is wound around sub-blocks 27 and 28 attached to the front and rear rotating shafts on the left and right sides. Left and right endless chains hung 72
9.29 A rod-shaped carrier 30 and a bar-shaped carrier 3 with protrusions
1 and 1 are horizontally mounted alternately close to each other.

Above this conveying device 16, intermediate pressing springs 33 and rear pressing springs 34 made of wire rods are attached at predetermined intervals in the lateral direction to support shafts 32 horizontally suspended on the left and right sides of the fixing machine frame 14. 16 with a slight interval between them. Further, on the front side of these pressing springs 33 and 34, there is a front pressing spring 3 with its free end along the conveying device 16.
5 is attached inside the scattering prevention plate 22. These pressing springs 33, 34, and 35 have wire diameters that increase from the front to the rear, so that the collected material scraped up by the scraping device 13 is firmly pressed into the conveying device 16 in order and securely into the bale forming chamber 1. I am trying to send it to

The fixed machine frame 14 is fixed on the machine base 12, and the rear movable machine frame 15 is pivotally supported by an upper pivot shaft 36.

Inside the fixed machine frame 14 side, there is an intake port 48;
Two bale forming rolls suspended above 37.37.
The first half of the bale forming chamber 1 is formed by semicircular side walls 38° 38 fixed on the left and right sides, the rear end of the conveying device 16, and the upper end of a bundling device 39, which will be described later.

Inside the movable machine frame 15, an endless shaft is wound around sprockets 41 and 42 attached to the left and right sides of a rotating shaft 36, which also serves as a pivot shaft in the upper part, and a rotating shaft 40, which is mounted horizontally in the lower part. A bundle in which rod-shaped carriers 44 are horizontally suspended from chains 43 and 43 at regular intervals, and the inner cavity side curves in an arc along the outer periphery of semicircular side walls 45°45 fixed to the left and right sides. The device 39 and the semicircular side walls 45, 45 on the left and right sides form the rear half of the bale forming chamber 1.

The outer peripheries of the fixed machine frame 14 and the movable machine frame 15 are covered with cover plates 4, respectively.
6.47 to prevent dust that has entered the bale forming chamber 1 together with the collected materials from scattering outward.

A twine supply device 50 is provided above the conveying device 16 at the front of the fixing machine frame 14, and the twine (T) is wrapped around the bale (B) compressed into a roll in the bale forming chamber 1 over the entire left and right width. I try to pack it.

As shown in FIG. 1, this twine supply device 50 has an endless chain 53 wound around and engaged with sprockets 51 and 52 pivoted on both left and right sides of a rectangular chenoke case 9. The twine guide 4 is moved back and forth to the left and right as shown by a trajectory 54.

On the rotating shaft 55 to which one sprocket 52 is attached,
A pulley 56 having large and small grooves around which the twine (T) is wound is attached, and by forcibly pulling out the twine wound around this pulley 56, the rotating shaft 55 rotates, and the sprocket 52 attached to this rotating shaft 55 is rotated. The endless chain 53 is driven by this.

A pair of upper and lower delivery rolls 2 and 3 are pivotally supported on brackets 57 that protrude forward at substantially left and right center shafts of the chain case 9. The lower large-diameter delivery roll 2 extends its shaft 58 laterally to enable it to stop rotating as appropriate, and the upper small-diameter delivery roll 3 has a twine (T) between it and the lower large-diameter delivery roll 2. ) is urged downward by a spring 59.

Between the delivery roll 2.3 and the twine guide 4, a third
As shown in the figure, a guide body 6 expands left and right toward the delivery rolls 2 and 3 and has a vertically elongated slit-shaped guide groove 5.
the shaft 64 to the bracket 63 fixed to the chain case 9.
It is pivoted so that it can swing left and right. This guide body 6 has a sensing portion 65 extending upward, and this sensing portion 65
The sensor 8 is attached to the chain case 9 when the guide body 6 approaches the chain case 9, and when the guide body 6 swings to the side, the sensor 8 is pushed and sensed.

Further, a plate-shaped twine receiving member 7 is horizontally suspended from a position close to the rear of the large-diameter delivery roll 2 to the lower end of the twine guide 4 and close to the lower side of the guide body 6.

66 is a relay pulley around which the twine is wound, and 67 is a twine cutting blade pivotally supported on the rear surface of the chain case 9 so as to cut the twine (T) when the twine guide 4 makes one reciprocation and returns.

When using this twine supply device 50, the twine (T) pulled out from the twine roll 73 in the twine case 74 provided at the front of the driving frame 18 is first wound around the pulley 56, and then The material is wrapped around a pulley 66, sandwiched between the delivery rolls 2. When compression molded into
The large-diameter delivery roll 2 is driven to drop the tip of the twine (T) onto the conveying device 16 and send it into the bale forming chamber 1. When the twine (T) wraps around the bases 71 and (B), the bale ( Since the twine (T) is pulled out by the rotation of B),
The drive of the delivery roll 2 is stopped. On the other hand, the twine guide 4 starts to be transferred in the lateral direction by rotating the pulley 56 around which the twine (T) is wound, and the twine (T) is rotated.
After moving back and forth from side to side while hooking, Twine (T)
is cut by the twine cutting blade 67 and stops moving, completing the packing of the bale (B).However, when the twine guide 4 starts to move laterally, the guide body 6 that has passed the twine (T) moves in the lateral direction. Since the twine guide 4 swings to push the sensor 8 and generate a signal, the operator can confirm that the twine (T) has been caught by the twine guide 4.

A guide plate 60 is provided at the rear lower part of the fixing machine frame 14 to allow the bale compressed into a roll in the bale forming room 1 to roll out to the rear of the traveling device 11. The guide tool 61 can be attached so as to protrude toward the target. As shown in FIGS. 7 and 8, this guide tool 61 is constructed by making the base bracket 63 of the guide tool 61 rotatable by the distance between the elongated holes 64 and fixing it with bolts 65 to the left when viewed from the rear. Alternatively, the bale (B) is fixed with a slight tilt to the right, and the right or left end of the bale (B) that rolls out of the bale forming chamber 1 is guided upward to make it stand up and then released. If it is not necessary to stand up, remove it.

A portion 62 in which the tip of the guide tool 61 expands horizontally rearward to the left and right provides resistance when the bail (B) guided upward by the guide tool 61 separates from the guide tool 61, thereby ensuring an upright action. This is the part to make it.

At the rear upper part of the driving frame 18 provided on the side of the fixed machine frame 14,
Scraping device 1i! 13. A working clutch lever 70 for intermittent driving of the conveying device 16, the bundling device 39, etc., side clutch levers 71, 71 for changing the traveling direction of the traveling device, a speed change lever 72 for changing the traveling speed, etc. are installed upright. , driving frame 1
A worker located at the rear of the machine is able to operate the machine.

Further, a twine case 74 for storing a twine roll 73 wound with twine (T) is provided at the front part of the driving frame 18, and the twine supply device 50 supplies the twine (T).

Furthermore, a seat 75 and a footrest 76 are provided at the rear of the driving frame 18.
The riding device consisting of the above is detachable so that the collecting work can be carried out by riding the vehicle as appropriate.

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

When the traveling device 11 is run while driving the raking device 13, the conveying device 16, the bundling device 39, and the bale forming rolls 37 and 37, the collected material on the ground is raked up by the raking device 13 to the conveying device 16. The collected material is sent into the bale forming chamber 1 by the conveying device 16, and compressed into a rolled bale (B) by the bundling device 39 and bale forming rolls 37.

Once the collected material is compressed to a predetermined pressure, the traveling equipment! 11 is stopped, and the twine supply device 50 is driven to wrap the twine (T) around the entire circumference of the bale (B) and pack it. Thereafter, the operator holds the opening/closing lever 77 and rotates the movable machine frame 15 upward to open the bale forming chamber 1 and roll the bale (B) out of the machine. If the guide tool 61 is attached at this time, the bale (B) will be ejected in an upright position to either the left or right side of the bale forming chamber l.

Furthermore, in order to perform the collection operation, the opening/closing lever 77 is pushed down to rotate the movable machine frame 15 downward to close the bale forming chamber 1, and the above-mentioned operation is repeated.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a partially enlarged front view, Fig. 2 is a partially enlarged side view, Fig. 3 is an enlarged plan cross-sectional view, and Fig. 4 is an overall side view. 5 is a plan view of the entire device, FIG. 6 is a rear view of the entire device, and FIGS. 7 and 8 are partial rear views showing the operating state. 1... Bale forming chamber 2.3... Delivery roll 4.
... Twine guide 6 ... Guide body 8 ... Sensor (B) ... Veil (T) ... Twine No. 3
Figure 7 Figure 8

Claims (1)

[Claims] The twine (T) fed into the bale forming chamber 1 by the delivery rolls 2 and 3 is caught and guided by a twine guide 4 that reciprocates left and right, so that the twine (T) is wrapped over the entire width of the bale (B). In a twine supply device for a roll baler, a guide body 6 that can swing from side to side is provided between the delivery rolls 2 and 3 and a twine guide 4, and a sensor 8 that detects the swinging of the guide body 6 is provided. T) A twine supply device for a roll baler configured to notify the supply status of the product.