JPH0126651B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a binder having excellent conveying performance for cut grain culms.

The binder is equipped with a reaping device that raises and reaps the grain culms in the field, and a binding device that binds the harvested and transported grain culms into predetermined amounts and discharges them to the outside of the machine. The transportation route for uncut grain culms and the transportation route for harvested grain culms are generally arranged orthogonal to each other, and conventionally, the transportation route for harvested grain culms has a horizontal transportation route for transporting the root part of the grain culms. A guide plate was provided to support and guide the device and the tip of the grain culm.

However, in recent years, the development of compact binders for single-row extra cutting, which has been developed in response to requests from small-scale farmers, requires the machine to be as small and compact as possible. As an alternative to blades, research is underway to adopt a rotary cutting blade with triangular blades arranged around the periphery of a disk, thereby guiding the grain culms directly to the bundling passage. In this development,
It is necessary to have a structure that allows the harvested grain culm to be smoothly fed to the binding device without stagnation.

The present invention has been made in view of the above points, and the present invention has been developed by directing a discharge belt that drives and connects the rotary blade and the ear discharge device from within the conveyance path of the harvested grain culm into the notch provided in the ear guide plate. The binder is stretched so as to run in the same direction as the grain culm transport direction in the transport path, thereby smoothing the transport of the grain culm from the rotary blade to the binding device and improving reaping and tying performance. This is what we provide.

Hereinafter, the configuration and the like will be explained in detail with reference to embodiments shown in the drawings.

FIG. 1 is a plan view of a binder according to the present invention, and FIG.
The figure is also a plan view of the main parts. In these figures, the binder 1 consists of a drive section 2 and a reaping section 3, and the drive section includes a drive wheel 4 and a reaping section 3.
An engine 5 as a drive source for each device, a tying string case 6, a travel clutch lever 7 for operating travel, a handle 8 for steering the machine base, and the like are provided. The reaping section 3 is removably connected to the drive section 2 by a connection mechanism (not shown), and a pair of left and right weeding bodies 9 and 10 are provided at the front end of the reaping section 3 to plow through the grain culms in the field. ing. Further, a lifting device 11 is installed behind the weeding bodies 9 and 10 to transport the fallen grain culm while lifting it up, and the uncut grain culm 12 is transported by the lifting device 11. In the path 13, the root portion of the uncut culm 12 formed in a rod shape is conveyed through the path 13.
A grain guide 14 is supported along the grain culm.

Further, at the terminal end of the conveyance path 13, the engine 5 drives the engine 5 through a transmission shaft (not shown) to rotate the discharge side toward the right side with respect to the machine advancing direction, as shown by arrow A in the figure. A rotary blade 15 is mounted horizontally. And this rotary blade 15
a rotating disk 15a pivotally attached to the cutting blade shaft 16;
It consists of eight triangular blades 15b arranged on the periphery of the triangular blade 15b and one triangular blade 1 on the discharge side of the triangular blade 15b.
The uncut culm 1 is fed into the V-shaped space formed by the receiving blade 16 provided in sliding contact with the culm 5b.
2 is cut and discharged to a conveyance path of the harvested grain culm indicated by reference numeral 17.

On the other hand, at the lower end of the reaping section 3, there is a pair of left and right sleds 1 that carry the entire reaping section 3 and run in contact with the ground.
8 and 19, on the sled 19 on the right side in the machine advancing direction, there is a chain case 20 formed to extend over almost the entire length of the chain case 20, A platform 21 having a U-shape in plan view is fixed in the center, with its side surface facing the conveyance path 17. Inside the chain case 20, a binding device 26 is installed on a platform. The binding device 26 includes a drive mechanism including a T protrusion 22, a needle 23, etc., and a binding/release mechanism including a timing gear 24, a release arm 25, etc. It is arranged separately on both sides of 21. That is, the binding device 26 is arranged on the discharge side of the rotary blade 15 via the reaped grain culm conveyance path 17.

The T protrusion 22 of this binding device 26 is connected to the T protrusion shaft 27.
When the grain culm sent into the conveyance path 17 reaches a predetermined amount, it rotates slightly, and a clutch (not shown) is connected to perform the tying operation. As shown in factor B, it is configured so that it rotates greatly and allows the bundled grain culm bundle to pass through.

Further, on the opposite side of the platform 21 to the conveying path 17, a thin plate is formed to curve upwardly and backwardly to support and guide the tip of the grain culm being conveyed. A tip guide plate 28 is provided upright along the conveyance path 17.
Then, on the back side of this ear guide plate 28, that is, on the opposite side of the conveyance path 17, there is a ear tip discharge device 29 whose starting end is at a location approximately corresponding to the T-projection 22, and a grain height of the grain culm bundle to be discharged after bundling is installed. It is installed horizontally in the center. This tip discharge device 2
Reference numeral 9 includes a conveyor belt 32 stretched between a pulley at the start end, a belt pulley 31 attached to a shaft 30, and a belt pulley (not shown) at the tip. It is formed so as to be freely rotatable about the pulley shaft 30 so that it can be stored attached to the machine base.

On the other hand, the cutting blade shaft 16 is equipped with a star wheel 33 for scraping grain culms, which has scraping pieces protruding in three directions.
is pivoted above the rotary blade 15, and
A drive pulley 34 for driving the tip discharge device 29 is mounted above the star wheel 33, and a discharge belt 36 is disposed between the drive pulley 34 and a driven pulley 35 on the pulley shaft 30. is being strung up. A notch 37 is provided in the inclined surface of the tip guide plate 28, and the one-side running portion of the discharge belt 36 extends from inside the conveyance path 17 toward the inside of this notch 37, as shown by the arrow in the figure. As shown by C, the rack is stretched so as to run in the same direction as the grain culm transport direction within the transport path 17. The discharge belt 36 that has reached the notch 37 passes through the notch 37, goes around to the back side of the ear guide plate 28, and is stretched so as to return to the driving pulley 34 via the driven pulley 35.

Furthermore, the rotary blade 1 of the platform 21
A grain culm support 38 formed in an arc shape of an elastic thin plate and guiding the released grain culm is attached to the protrusion protruding from the 5 side via a bracket 39. A guide rod 40 for guiding the root of the discharged grain culm is protruded from the tip.

The operation of the binder 1 configured as above will be explained. As the machine progresses, the grain culms in the field that have been cleared by the weeding bodies 9 and 10 are removed by the lifting device 1.
1, and is fed by the star wheel 33 between the triangular blade 15b of the rotary blade 15 and the receiving blade 16, where the root portion is harvested.
The cut grain culms are fed into the conveyance path 17 by the scraping action of the star wheel 33 and the crank action of a packer (not shown), and when the amount of the grain culms reaches a predetermined amount, the T protrusion 22 slightly Rotate to connect the clutch. When the clutch is connected, the needle 23 first winds the binding cord around the grain bundle, and then, as the timing gear 24 rotates, a knot is formed at the end of the cord and the cord is cut. The bundled grain culm bundle is pushed out by the release arm 25, causing the T projection 22 to rotate greatly, and the grain culm holder 3
8 and a guide rod 40, and is conveyed near the tip by a tip discharging device 29 and discharged outside the machine. After the grain culm is released, the T-protrusion 22 and the release arm 25 return to their original positions by the action of a cam (not shown) and complete one bundling and release operation.

In such a grain culm reaping and binding operation using the binder 1, by using a rotary blade as the cutting blade, the reaped grain culm is sent to the conveyance path 17 without providing a lateral conveyance device. Since the release belt 36 runs from the conveyance path 17 toward the notch 37 in the same direction as the grain culm conveyance direction in the conveyance path 17, the lower part of the tip of the grain culm sent into the conveyance path 17 is moved by the release belt 36. transported by In this case, the grain culm is tilted so that its tip part leans against the inclined surface of the ear guide plate 28, and its weight acts on the discharge belt 36, and a feeding action is applied to the grain culm due to frictional resistance. The elastic deformation of the discharge belt 38 caused by the grain culms that are sent out one bundle at a time and its restoring force apply a sorting action to the grain culms, so that conveyance is facilitated.

As is clear from the above description, in the binder according to the present invention, the discharge belt that drives and connects the rotary blade and the ear discharge device is moved from within the conveyance path of the harvested grain culm into the notch provided in the ear guide plate. By stretching the grain so that it extends in the same direction as the grain culm transport direction in the transport path, the grain culm that is fed from the rotary blade to the transport device and headed for the tying device is affected by the feeding action of the discharge belt. Since the discharging belt has a sorting action due to its elasticity, its conveyance is significantly promoted and there is no stagnation within the conveyance path, and the reaping and tying performance is improved, which is highly effective.

[Brief explanation of drawings]

FIG. 1 is a plan view of a binder according to the present invention, and FIG.
The figure is also a plan view of the main parts. 1...Binder, 12...Uncut culm, 15...Rotary blade,
15a... Rotating disk, 15b... Triangular blade, 17... Conveyance path, 26... Binding device, 28... Spear tip guide plate, 29
... Spear tip release device, 36... Release belt, 37... Notch.

Claims (1)

[Claims] 1. A rotary blade 15 that is equipped with a rotating disk 15a and a plurality of blade bodies 15b disposed on the peripheral edge thereof and reaps the root part of the grain culm 12, and a reaped grain culm on the discharge side of the rotary blade 15. a binding device 26 disposed via the twelve conveyance paths 17; a tip guide plate 28 erected along the conveyance path 17; and a tip guide plate 28.
The discharge belt 3 is stretched between the rotary blade 15 and the starting end on the opposite side of the conveyance path 17.
6, and the discharging belt 36 is extended from inside the conveyance path 17 toward the notch 37 provided in the ear guide plate 28, and A binder characterized in that the binder is stretched so as to run in the same direction as the grain culm conveyance direction.