JPH0923739A - Bale-molding sensor of roll baler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely operate the bale-molding sensor for sensing that a collected material is compressed and molded into a roll-like shape in a bale-molding chamber and that the diameter of the molded product increases and subsequently informing the finish of the molding to an operator. SOLUTION: A bale diameter indicator 3 moving together with a sprocket 2 linearly moving from the outside to the inside with the increase in the diameter of a collected material compressed in a bale-forming chamber 1 is disposed, and a sensor-operating tool 4 escaping on the outside of a moving range and simultaneously moving to a sensor-operating position, when the bale diameter indicator 3 contacts with the sensor-operating tool 4 within the moving range of the bale diameter indicator 3 is also disposed. A return-stopping means 5 for stopping the return of the sensor-operating tool 4 to the original position during the inward movement of the indicator 3 is further disposed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll baler for collecting collected grass such as cut grass and threshing and leaving it on the ground, and compressing and packing it into a roll-shaped bale. The size can be changed.

[0002]

2. Description of the Related Art In a roll baler, a collected product is taken into a bale forming chamber by traveling of an airframe and is compressed into a roll while being rotated. When the bale forming chamber is filled with the collected material and the diameter increases, a buzzer or the like indicates that the bale has been compressed.

[0003]

In the conventional bale formation sensing device, the buzzer sounds when the bale formation is completed, but if it is left for a while, the buzzer stops sounding or the bale collection work is performed again after the bale is removed. In some cases, the bale molding completion buzzer did not sound when the above procedure was performed, and this was not a reliable notification of the bale molding completion.

[0004]

Therefore, in the present invention, the bale diameter that moves with the sprocket 2 that linearly moves from the outside to the inside as the diameter of the material compressed in the bale forming chamber 1 increases. Provided with the indicator 3, the sensor operating tool 4 moves to the sensor operating position B while escaping out of the range of movement of the bail diameter indicator 3 when the indicator 3 comes into contact with the indicator 3 and comes into contact therewith.
And a return preventing means 5 for preventing the sensor operating tool 4 from returning to its original position while the pointing tool 3 is moving further inward.

[0005]

The roll baler of the present invention senses that the tension sprocket 2 moves inward as the collected material is compressed in the bale forming chamber 1 and its diameter increases, and the buzzer sounds. The bale formation sensing device is provided with a bail diameter indicator 3 that moves together with the sprocket 2 and a sensor actuator 4 that moves to a sensor operating position when the indicator 3 hits. Even if the tool 3 comes into contact with the sensor actuating tool 4 and moves further in the direction of increasing the bale diameter, the return preventing means 5 is provided to prevent the actuating tool 4 from returning to its original position. However, it is possible to prevent the next bale forming sensing operation from being disturbed.

[0006]

Next, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 3 and 4, the entire structure of the roll baler is such that a pickup device 13 is provided in front of a traveling machine base 12 equipped with a traveling device 11 composed of a crawler 10, and a fixed machine frame 14 mounted on the traveling machine base 12 is provided. The bale molding chamber 1 is formed inside the movable machine frame 15 and the movable machine frame 15.
The carry-in device 16 is provided between the pickup device 13 and the pickup device 13. On the side of the fixed machine frame 14 and the movable machine frame 15 on the traveling machine base 12, a prime mover frame 17 in which a prime mover is mounted is provided.

The pick-up device 13 is provided with a plurality of laterally arranged arc-shaped guide rings 18, each of which has a scraping rod 19 projecting from each array gap of the guide rings 18, which is swung from the lower side to the upper front side to disperse pastures and grasses scattered on the ground. A rotary shaft is constructed such that a collected object such as straw is picked up upward, and a disk 90 pivotally supporting the scraper rod 19 is laterally mounted on side frames 20 erected on both left and right outer sides of the arc-shaped guide ring 18. It is fixed to 91, the side frame 20 is pivotally supported on the tip rotation shaft 23 of the carry-in device 16, and the tip of the raking rod 19 rotates close to the ground to rotate between the collecting action position and the upper storage position. Is designed to move up and down. The vertical movement of the pickup device 13 can be performed by rotating the elevating lever 24 provided on the side portion of the driving frame 17.

The carry-in device 16 feeds the collected material picked up from the ground by the front pick-up device 13 into the rear bale forming chamber 1, so that the sprocket 26 mounted on the left and right side portions of the front and rear rotary shafts 23, 25, The endless chain 28 is wound around 27, and the left and right endless chains 2
It is configured such that the pipe-shaped carrier rods 9 are laterally laid at dense intervals on the Nos. 8 and 28. Above the carry-in device 16, there are a lower end edge of a holding plate 30 attached at a predetermined interval to a support shaft 29 horizontally extending between the left and right side plates of the fixed machine frame 14 and a piano wire 31 attached to the tip of the holding plate 30. The collected matter is pressed onto the carry-in device 16. At the front of the carry-in device 16, a piano wire 32 attached to the shatterproof plate 21 of the pickup device 13 is used to press the collected material.

The fixed machine frame 14 is fixed on the traveling machine base 12, and the rear movable machine frame 15 is pivotally supported by the upper pivot shaft 33 so that the fixed machine frame 14 and the movable machine frame 15 are supported. When the interposed hydraulic cylinder (not shown) is extended, the movable machine frame 15 rotates upward to open the internal bale forming chamber 1 so that the bale compressed and packed in a roll shape is rolled out rearward. There is. Inside the stationary machine frame 14 and the movable machine frame 15, the left and right sides of a rotary shaft 35 that extends horizontally above the intake 34 on the fixed machine frame 14 side and a rotary shaft 36 that extends horizontally below the rear of the movable machine frame 15. Pipe-shaped carrier rods 8 are laterally suspended at regular intervals around endless chains 7 and 7 wound around sprockets 37 and 38 attached to the side portions, and arc-shaped pipes provided with semicircular side walls 40 and 41 on the inner cavity side. Two guide sprockets 71, 72 and one tension sprocket 2 on the outer peripheral side along the chain guide.
The bale-forming compression device is configured so as to be moved by. In other words, the left and right side walls 40, 41 and the transfer rod 8 of the bale forming / compressing device form a cylindrical bale forming chamber 1.

Since the tension sprocket 2 moves from the outside to the inside as the diameter of the bale in the bale forming chamber 1 increases, the bale diameter can be judged from the position of the sprocket 2 and the bale diameter can be collected at an appropriate position. By stopping the intake and winding the twine around the bale, the packed bale diameter can be made arbitrary. The outer peripheries of the stationary machine frame 14 and the movable machine frame 15 are covered with cover plates 42 and 43, respectively, to prevent dust that has entered the bale molding chamber 1 together with the collected matter from scattering outward. A twine supply device 45 is provided on the front side of the stationary machine frame 14 and above the carry-in device 16.
Twain T is supplied to the bale that has been compressed into a roll shape in the bale molding chamber 1 and spirally wound around the outer periphery for packaging.

FIGS. 1 and 2 show a moving mechanism of the tension sprocket 2 and a bale forming sensing device.
Mounting block 46 that supports the tension sprocket 2
Is slidably fitted in the guide frame 47 from the center of the bale forming chamber 1 in the radial direction, and moves inward and outward within the movable range of the elongated hole 49 formed in the side wall 48. The mounting block 46 is elastically urged outward by a spring 50. The seat 51 of the spring 50 is adapted to move inward and outward by rotating the adjusting screw 52 pivotally supported on the guide frame 47 to adjust the elastic force pushing the mounting block 46. A bail diameter indicating tool 3 having a guide portion 56 extending along the longitudinal direction of the elongated hole 49 is projected from the mounting block 46 to the side portion so that the movement of the sprocket 2 can be recognized.

On the side of the guide frame 47, the sprocket 2
The rod 53 is attached to the side wall 48 so as to be parallel to the moving direction of the rods by pivotally supporting links 54 and 55 pivotally supported by pivots 90 and 91. The rod 53 is fitted with the sensor actuating tool 4 with which the bail diameter indicating tool 3 abuts, and is provided with a screw 58 so that the fixed position can be changed. On one of the links 55, a sensor operation piece 61 extending toward the upper sensor 57 is provided so as to project, and a spring 59 is stretched between the side wall 48 and oscillates. Reference numeral 60 is a pin that regulates the rotation range of the link 55. The link 5 is provided on the side wall 48 of the movable machine frame 15.
The hexagonal shaft 75 having the engaging portion 80 formed by bending the position for engaging the sensor operation piece 61 of 5 is slidable on the mounting frame 76 and is elastically mounted by the spring 77 toward the stationary machine frame 14 side. There is. The pedestal 79 for receiving the tip of the hexagonal shaft 75 is attached to the side wall 78 of the stationary machine frame 14, and the engaging portion 80 of the hexagonal shaft 75 is separated from the sensor operating piece 61 while the bale forming chamber 1 is closed. When the movable machine frame 15 is rotated upward to open the bale forming chamber 1, the engaging portion 80 of the hexagonal shaft 75 engages with the sensor operating piece 61 and separates the sensor 57 from the pressed state.

When the inside of the bale forming chamber 1 is empty, the tension sprocket 2 is located at the outermost position in FIG. 1, and the collected matter enters the bale forming chamber 1 and is compressed into a roll-shaped bale. Is increased, the bail diameter indicating tool 3 hits the sensor actuating tool 4 to rotate the link 55, the sensor actuating piece 61 contacts the sensor 57, and a buzzer sounds to complete the bale forming. Notify me. Therefore, when the position of the sensor operating tool 4 is outward, the buzzer sounds with a small bale diameter, and when it is inward, the buzzer sounds with a large bale diameter. The guide part 56 of the bail diameter indicating tool 3 is a return preventing means 5 for preventing the link 55, which has once rotated to a position where the sensor 57 is pressed, from returning to its original state. The guide part 56 is provided on the sensor operating tool 4 side in parallel therewith. It may be provided to prevent returning to the original state.

A guide plate 65 for guiding the bale rolling out from the bale forming chamber 1 to the rear part of the traveling device 11 is provided at the lower rear portion of the stationary machine frame 14. Movable frame 17 of fixed machine frame 14
A partition wall 81 is provided on the side to prevent the operator's foot or the like from entering the rotation range of the movable machine frame 15 from the driving side. On the rear upper part of the drive frame 17, a work / open / close lever 66, which drives the tween supply device 45 to be intermittently driven and the bale forming chamber 1 to be opened and closed, and the left and right traveling devices 11 are driven. An operator located at the rear of the driving frame 17 operates by providing side clutch levers 67, 67 for intermittently changing the turning direction, a speed change lever 68 for changing the traveling speed, and a traveling clutch lever 69 for intermittently driving the traveling device 11. To be able to. 70 is a seat and 71 is a footrest.

In order to perform the collecting work with the roll baler configured as described above, the following is performed. Pickup device 13,
When the traveling device 11 is caused to travel while driving the carry-in device 16 and the bale molding compression device 4, the picked-up device 13 picks up the collected substances scattered on the ground onto the carry-in device 16 and the carry-in device 16 into the bale molding chamber 1. It is sent in and compression molded into a roll-shaped bale. When the bale is compressed to a predetermined diameter in the bale molding chamber 1, the traveling device 11 is stopped and the twain supply device 45 is driven to feed the twain T into the bale molding chamber 1 to spiral the twain T to the outer periphery of the bale. Wrap it in a shape and pack it.

[Brief description of drawings]

FIG. 1 is a partially enlarged side view of an embodiment of the present invention.

FIG. 2 is a partially enlarged side view of the embodiment of the present invention.

FIG. 3 is an overall side sectional view of an example.

FIG. 4 is an overall plan view of the embodiment.

[Explanation of symbols]

 1 Bale molding chamber 2 Tension sprocket 3 Bale diameter indicator 4 Sensor actuating device 5 Return prevention means a Sensor operating position

Claims (1)

[Claims] 1. A bail diameter indicator (3) that moves with a sprocket (2) that moves linearly from the outside to the inside as the diameter of the material to be compressed in the bale forming chamber (1) increases.
And a sensor operating tool (4) that moves to the sensor operating position (a) while escaping out of the moving range when the pointing tool (3) abuts within the moving range of the bail diameter indicating tool (3). , A bale-forming sensing device for a roll baler, comprising return prevention means (5) for preventing the sensor operating tool (4) from returning to its original position while the pointing tool (3) is moving further inward. .