JPH076757Y2 - Roll baler twain supply device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a roll baler for collecting collected grass such as cut grass or threshing left on the ground and compressing and packing the collected bales into roll bales. The present invention relates to a twine supply device that spirally winds twine around the entire width of a bale compression-molded in a bale molding chamber.

(Prior Art) An example of a roll baler twain supply device is the one described in JP-A-58-149614.

The structure is such that a twine supply device is provided above the intake of the collected matter in the bale forming chamber, and a pulley having a V groove for winding the twine is provided on the drive shaft of the twine supply device. By rotating by the pulling force of the twine drawn into the room, the twine guide provided in the twine supply device hooks the twine and reciprocates left and right.

(Problems to be Solved by the Invention) The pulley around which the twine is wound is formed in a V groove, and the pulling-in into the bale forming chamber of the twine does not occur due to slipping of the twine in the V groove. Although the pulley is rotated by force, the twine having a thick or thin cord diameter is used, and in the case of a thin twine, the twine does not bite into the V groove sufficiently and slips to cause the twine bale molding. In some cases, the pulling force into the room may prevent the pulley from rotating sufficiently.

In order to prevent this, it suffices to process the V groove so that it is sufficiently narrow at the bottom, but such processing is difficult.

In addition, when changing the traverse speed of twain and changing the winding pitch around the bale, the pulley must be replaced with one with a different diameter, but it is troublesome to always have a pulley with a different diameter. .

(Means for Solving the Problem) Therefore, in the present invention, a twine supply device 2 for laterally moving the twine (T) wound around the bale in the bale forming chamber 1.
In the twain supply device for the roll baler, the drive pulley 3 is designed to be driven by the pulling force of the twine (T) wound around the drive pulley 2 into the bale forming chamber 1.
Is a disk 5 attached to the drive shaft 4, a plurality of elastic bodies 7 equally arranged in an annular shape such that the distance from the central force of the drive shaft 4 to the outer peripheral edge of the disk 5 can be changed, and the elastic body 7 is a disk. It is composed of a side plate 8 which is sandwiched between the side plate 8 and the plate 5.

(Operation and Effect of the Invention) Twain (T) is wound around the elastic body 7 of the pulley 3, and the drive pulley 3 is rotated as the twain (T) is drawn into the bale molding chamber 1. However, the twine (T) wrapped around the outer periphery of the elastic body 7 is not slippery, and the outer peripheral edge position of the elastic body 7 is changed to change the transverse feed speed of the twine (T). You don't have to change it to another pulley.

(Example) Next, the Example of this invention is described, referring drawings.

As shown in FIG. 5 and FIG. 6, the whole structure of the roll baler is a traveling platform equipped with a traveling device 11 composed of a crawler 10.
A pickup device 13 is provided in front of 12, and a bale molding chamber 1 is formed inside a stationary machine frame 14 and a movable machine frame 15 mounted on the traveling machine base 12, and the bale molding chamber 1 and the pickup device are formed.
A carry-in device 16 is provided between the device and the device 13. Further, on the side of the fixed machine frame 14 and the movable machine frame 15 of the traveling machine base 12, a prime mover frame 17 in which a prime mover is mounted is provided.

The pickup device 13 includes a pickup rod that protrudes from each array gap of a plurality of arcuate guide rings 18 arrayed in the lateral direction.
19 is rotated from the lower part to the upper part so as to pick up collected grass, straw, etc. scattered on the ground upward, and it is erected on both left and right outer sides of the arc-shaped guide ring 18. Side frame
The upper part is covered with a shatterproof plate 21 that is laid horizontally, and the front side is covered with a front cover plate 22 made of a rubber plate suspended from the shatterproof plate 21, and the left and right side frames 20, 20 are fixed frame 14 The pickup rod 19 is pivotally supported on a horizontally extending rotating shaft 23 so that the whole of the pickup rod 19 moves up and down between a collecting action position in which the tip rod approaches the ground and rotates and an upper storage position.

Incidentally, the vertical movement of the pickup device 13 is interlocked so that it can be performed by a rotating operation of an elevating lever 24 provided upright on the driving frame 17.

The carry-in device 16 is for sending the collected material picked up from the ground by the front pick-up device 13 into the rear bale molding chamber 1, and is endless to the sprockets 26, 27 attached to the left and right side portions of the front and rear rotary shafts 23, 25. The chain 28 is wound around, and pipe-shaped carriers are horizontally laid across the left and right endless chains 28, 28 at close intervals.

Above the carry-in device 16, an intermediate pressing spring 30 made of a wire rod is laterally provided at a predetermined interval on a support shaft 29 which is horizontally stretched across the fixed machine frame 14.
The rear pressing spring 31 and the rear pressing spring 31 are provided with their free ends along the carrying-in device 16 with a slight gap therebetween.

Further, on the front side of these presser springs 30 and 31, a front presser spring 32 is attached to the inside of the shatterproof plate 21 with its free ends being along the upper surface of the carry-in device 16.

Further, on the front side of these presser springs 30 and 31, a front presser spring 32 is attached to the inside of the shatterproof plate 21 with its free ends being along the upper surface of the carry-in device 16.

These presser springs 30, 31, 32 have wire diameters that gradually increase from the front part to the rear part, so that the collected objects picked up by the pick-up device 13 are strongly pressed sequentially to the carry-in device 16 and securely into the bale forming chamber 1. I try to send it in.

The fixed machine frame 14 is fixed on the traveling platform 12, and the movable machine frame at the rear is fixed.
The movable frame 15 is pivoted upward by lifting the handle 34 projecting to the rear of the movable machine frame 15 by pivotally supporting the movable machine frame 15 on the upper pivot shaft 33, and the bale forming chamber 1 inside is opened. The bale that is compressed and packed into a shape is rolled back.

Inside the stationary machine frame 14, there are an intake port 34, two bale forming rolls 35, 35 extending above the intake port 34, and semicircular side walls 36, 36 fixed to the left and right sides. The second half of the carry-in device 16 and the upper end of the bale forming feeding device 37, which will be described later, form the first half of the bale forming chamber 1.

Inside the movable machine frame 15, pipes are fixed at regular intervals to endless chains 41 and 41 wound around sprockets 39 and 40 attached to the left and right sides of a pivot shaft 33 on the upper side and a rotary shaft 38 horizontally laid on the lower side, respectively. -Shaped conveying tool is laid horizontally, and the bale-forming feeder 37 is configured to move in an arc shape along the outer periphery of the semicircular side walls 42, 42 whose inner cavity side is fixed to the left and right sides, and the left and right side portions. The semicircular side walls 42, 42 form the second half of the bale forming chamber 1.

The outer peripheries of the stationary machine frame 14 and the movable machine frame 15 are covered with cover plates 43 and 44, respectively, to prevent dust that has entered the bale forming chamber 1 together with the collected material from scattering outward.

At the front part of the stationary machine frame 14 and above the carry-in device 16, a twine supply device 2 is provided, and the twine (T) is spirally wound and packed on the bale compressed in the bale forming chamber 1 in a roll shape. I am trying.

As shown in FIG. 4, the twine supply device 2 winds an endless chain 46 around sprockets 44, 45 pivotally supported on both left and right sides in a horizontally long rectangular parallelepiped chain case 43, and engages the endless chain 46. The twain guide 47 is reciprocally moved from side to side as shown by a locus 48 in the drawing.

A drive shaft 4 having one sprocket 45 attached thereto is provided with a pulley 3 having a groove 6 around which the twine (T) is wound, and a forced bale forming of the twine (T) around the groove 6 of the pulley 3 is carried out. The drive shaft 4 is rotated by the pulling force into the chamber 1, and the endless chain 46 is driven via the sprocket 45.

The pulley 3 has an elastic body 7 to form a pulley groove 6 on the outer peripheral portion of the disk 5, as in the first embodiment shown in FIG. 1 or the second embodiment shown in FIGS. 2 and 3. It is a structure that is attached so as to be sandwiched by 8. In the first embodiment, two elastic bodies 7 having different outer diameters, which are annular plates, are sandwiched between the side surfaces of the disk 5 by the annular side plates 8 and 8 and are fastened with bolts 49 and nuts 50. . In the second embodiment, one end of a plurality of elastic bodies 7 whose outer peripheral edges are curved in an arc shape is rotatably supported by the side plate 8 and pivotally supported by the support shaft 51 at the same outer diameter position of the disk 5. The other end of the body 7 is fixed by bolts 54 and wing nuts 55 penetrating arc-shaped elongated holes 52, 53 provided in the disk 5 and the side plate 8, respectively. In this embodiment, by loosening all the wing nuts 55 and moving and fixing the outer peripheral edge position of the elastic body 7 as a whole, the effective winding diameter around which the wine (T) is wound changes greatly. As a result, the rotation speed of the pulley 3 changes at the same pull-in speed of Twain (T).

A pair of upper and lower delivery rolls 57 and 58 are pivotally supported by a bracket 56 that protrudes forward in the substantially left-right center of the chain case 43. The large diameter delivery roll 58 on the lower side extends its shaft 59 to the side so that it can be appropriately rotated and stopped, and the small diameter roll 57 on the upper side has a twine (T ) Is urged downward by a spring 60.

61 is a relay pulley around which the Twain (T) is wound, and 62 is a Twain cutting blade pivotally supported on the rear side of the chain case 43 so as to cut the Twain (T) when the Twain guide 47 makes one round trip and returns. is there.

When using this twine supply device 2, a drive frame 17
The twine (T) pulled out from the twine roll 64 in the twine case 63 is first wrapped around the pulley 3 and then around the relay pulley 61, and is sandwiched between the delivery rolls 57 and 58, and is lowered. When the collected material is compressed and packed in a roll in the bale forming chamber 1, the large-diameter delivery roll 58 is driven to bring the tip of the twine (T) into the carrying-in device 16. 16 It is dropped onto the bale forming chamber 1 and sent to the inside of the bale forming chamber 1. When the twine (T) is wrapped around the bale, the twine (T) is pulled out by the rotation of the bale.
Stop driving 58. On the other hand, the twine guide 47 starts to move laterally when the pulley 3 around which the twine (T) is wound is rotated, and reciprocates left and right while hooking the twine (T), and then the twine (T). Is cut by the twain cutting blade 62 and stops moving, and packing of the bale is completed.

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.

A pickup device 13 and a carry-in device are provided on the rear upper part of the driving frame 17.
16, bale forming feeding device 37 work clutch lever 66 for intermittently driving the bale forming rolls 35, 35, left and right traveling devices
Side clutch levers 67 and 67 that change the turning direction by intermittently driving 11 and speed change lever 6 that changes the traveling speed of the traveling device 11.
8. A lift lever 24 and the like for moving the pickup device 13 up and down between the working position and the storage position are provided so that an operator located at the rear part of the driving frame 17 can operate. 69 is a seat and 70 is a footrest.

In order to perform the collection work with the roll baler configured as described above, the following is performed.

Pickup device 13, carry-in device 16, bale forming feeder
37, traveling device 1 while driving the bale forming rolls 35, 35
When the vehicle 1 travels, the collected substances scattered on the ground are picked up by the pickup device 13 onto the carry-in device 16, and further, the collected substances are sent into the bale forming chamber 1 by the carry-in device 16 and the bale forming feed device 37. And bale forming rolls 35,35
It is compression molded into a roll-shaped bale.

When the bale is compressed to a predetermined pressure in the bale molding chamber 1, the traveling device 11 is stopped, the twaine supply device 2 is driven, and twain (T) is sent into the bale molding chamber 1 to remove the twain (T). Wrap in a spiral around the bale and package.

After that, the movable machine frame 15 is turned upward by holding the opening / closing lever 34 to open the bale forming chamber 1, and the bale is rolled out of the machine.

Furthermore, in order to continue the collecting work, the open / close lever 34 may be pushed to lock the movable frame 15 to the stationary machine frame 17, and the above work may be repeated.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a partially enlarged sectional view of the first embodiment, and FIGS. 2 and 3 are enlarged front views and enlarged side sectional views of the second embodiment. FIG. 4 is a partial front view, FIG.
The figure is a side sectional view of the whole, and FIG. 6 is a plan view of the whole. 1 ... Bale forming chamber, 2 ... Twain supply device 3 ... Pulley, 4 ... Drive shaft 5 ... Mounting disk, 6 ... Groove 7 ... Elastic body, 8 ... Side plate (T) ... Twain

Claims (1)

[Scope of utility model registration request] 1. A bale forming chamber (1) for a twine (T) in which a twine supply device (2) for laterally moving a twine (T) wound around a bale in a bale forming chamber (1) is wound around a drive pulley (3).
In a twain supply device for a roll baler configured to be driven by an inward pulling force, the drive pulley 3 is a disk 5 attached to a drive shaft 4, and the distance from the center of the drive shaft 4 to the outer peripheral edge with respect to the disk 5. 2. A roll baler twaine supply device comprising a plurality of elastic bodies 7 which are changeably arranged in an annular shape and side plates 8 which sandwich the elastic bodies 7 between the disk 5 and the elastic body 7.