JP2875700B2 - Stem tying unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stalk-and-strap unit for use in, for example, a combine or a binder.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
Edges and first intersection A from the edge portion of the stem稈搬feeding direction downstream side is gently convex curve and movement locus L1 of the tip intersects the stem稈稈only the direction of the stem culm scraping for packer 22 And an edge of a rib 21 for preventing the stem and stem from being brought in and a needle 23 for supplying a tying string.
The a movement trajectory L2 of the tip intersects the stem稈稈only direction
2 In the moving direction of the stem and stem toward the binding space S from the intersection B
The edge part located on the better side also had a shape that gradually drawn a convex curve.

[0003]

Accordingly, in the stem-and-culm bundling apparatus having the above-mentioned conventional structure, if the stem and stem transferred to the binding space S of the bundling apparatus happen to be at the rib 21, the stem-and-stem bundling apparatus will be described. The angle θ1 ′ formed by the tangent at the first intersection A between the raked edge of the tip of the culm packing packer 22 and the edge of the rib 21 is extremely acute, and
Outer edge of rib tip of needle 23 for binding cord supply and rib 21
The angle between the tangent at the second intersection point B at the edge of
When the needles 2 and the needles 23 move so as to overlap in the stem / culm direction, the stems and the stems are more likely to be caught by the convex portions of the curved edge portions of the ribs 21 and the packers 22 and the needles 23. In addition, for this reason, there is a high possibility that the nodule of the binding device will be brought to the alligator by bending the stem culm, and there is a risk that poor binding may occur if the stem culm is brought into the nodule in such a manner. . The present invention has been made in view of the above circumstances, and avoids a problem in which stems and stems are caught between ribs and a rib when a knot portion of a packer for scraping stems and a tying string supply needle moves to an alligator. It is an object of the present invention to provide a stalk-and-strap unit.

[0004]

According to a first aspect of the present invention , there is provided a stalk-culm binding apparatus according to the present invention.
A rib is provided at the front of the
Of the stem formed on the protruding edge of the stem
Intersects the movement locus of the tip of the packer for scraping the stem
The edge portion located closer to the binding space than the first intersection is
It is characterized in that it is formed in a straight line from the first intersection to the binding space. Further, a stem-and-culm binding device according to claim 2 of the present invention for achieving the above object.
Has ribs on the front of the string guide plate to prevent stems and stems from being brought in
And among the edges formed on the protruding edge of this rib, the stem
The moving gauge of the tip of the tying cord supply needle
It is located closer to the outside of the unity space than the second intersection that intersects the trace
The edge portion to be placed is a straight line passing through the second intersection,
One, transfer of the binding string supply Needle than the second intersection
Intersecting angle with respect to the moving trajectory on the better side in the moving direction
It is characterized by being formed so that the degree becomes an obtuse angle . The operation and effect of this characteristic configuration are as follows.

[0005]

According to the first aspect of the present invention, the rib
The angle formed by the edge part closer to the binding space than the first intersection point and the edge part which is connected to the tip of the pack for scraping stem culm and presses the stem culm is a relatively wide angle, that is, the angle of sharpness is relatively small. Since the stem is loose, the stem culm is pushed into the binding space by the packer and moved in a state where the stem is not sandwiched between the packer and the edge of the rib. Then, in the invention according to claim 2, Li
Outside the unity space than the second intersection at the edge of the
The edge part located near the side is straight, and
The crossing angle of the tip of the feeding needle with the movement trajectory is obtuse
Since it is, without Kuki稈it is sandwiched between the edge <br/> di portion of the tip portion and the ribs of the needle, but its Kuki稈is separated from the rib of the edge portion at the back edge of the needle Will be evacuated.

[0006]

Therefore, in the invention according to the first aspect, the trapped straw is suppressed by the packer for scraping the stem and stem and the edge portion of the rib. It is possible to avoid entering in a broken state, and it is difficult for a binding failure to occur. And in claim 2
In the present invention, the discharge straw is restrained from being pinched by the distal end portion of the tying string supply needle and the edge portion of the front edge of the rib, so that the discharge straw enters with the knot portion broken. This is avoided, and poor binding is unlikely to occur.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a stem-and-culm binding apparatus 1 provided in a binder according to the present invention. After being cut by a cutting device (not shown), the cut stem and culm is laterally conveyed to the above-mentioned stem and stem binding device 1 in a standing posture. In the stalk culm binding device 1, a string supply unit 2 is disposed behind a binding space S where the transported stalk culm is collected and bound, and a knot unit 3 is disposed in front. In addition, the cord supply operation of the cord supply unit 2 and the knot operation of the knot unit 3 are configured to be driven in synchronization with each other. More specifically, the string supply unit 2 includes a packer 4 for scraping the stems and stems that scrapes the cut stems into the binding space S, a sensing door 5 that detects the focusing pressure of the cut stems collected and collected in the binding space S, When the door 5 detects a predetermined convergence pressure, the tying cord supply needle 6, the rotating door 9 for releasing the tied stem and stem bundle, and the clutch mechanism for starting the operation of the needle 6, the knot part 3, and the like. Etc. are equipped. Further, the knot part 4 includes a knot building 7 and a string holder 8. Further, a string guide plate 10 for guiding a tying string to the knot portion 3 is provided at a portion of the knot portion 3 facing the front of the binding space S. As shown in FIG. 1, a pair of upper and lower ribs 11 for projecting stem stem carry-in protrude from a surface of the string guide plate 10 facing the binding space S.

[0008] As shown in FIGS. 1 and 2, the rib 1
An edge 11A is formed at the protruding edge of each of the first and the first eleventh.
The edge 11A of the stalk / culm is viewed from the stem / culm direction.
The first intersecting with the movement trajectory L1 of the tip of the burring packer 4
An edge portion 11a heading toward the binding space S from the intersection A;
A second intersection that intersects the tip movement locus of the string supply needle 6
An edge formed closer to the outside of the binding space S than the point B
11b. The edge portion 11a is formed in a straight line from the first intersection point A toward the binding space S. Further, the edge portion 11b is
A straight line passing through the two intersections B, and
On the upstream side in the moving direction of the tying string supply needle 6
So that the intersection angle θ2 to the moving trajectory becomes an obtuse angle.
It has been done. The movement locus L1 of the tip of the packer 6 for scraping the stem and culm, the first intersection A intersecting the stem and culm in the body direction,
The movement trajectory L2 of the distal end portion of the tying string supply needle 8 and the second intersection point B intersecting with each other as viewed from the direction of the drained straw stem culm are set to be substantially the same.

Therefore, according to the above configuration, when the tip of the stalk-pulling packer 4 intersects with the ribs 11, 11 due to the linear shape of the edge portion 11 a, FIG.
As shown, the raking surface of the packer 4, the edge portion 11a and forms an angle θ1 forms a relatively open acute angle, while substantially maintaining the angular position, raking the Kanagawa forward movement of the packer 4 So that the cutting stem can be moved to the edge portion 11a.
And the squeezing surface of the packer 4 can be eliminated. In addition, the tying string supply needle 6 is
At the time of crossing with 11, the tip of the needle 6 and the
2 Above in the moving direction of the stem / culm toward the binding space S from the intersection B
The angle θ2 formed by the edge portion 11b located on the hand side is blunt.
Since it is in a state of forming a corner , the cutting stem is cut into the edge portion 11b.
Since the cutting stem is released further forward, it is possible to prevent the cutting stem from being caught between the edge portion 11b and the needle 6.

The stem-and-culm binding device according to the present invention may be applied to a combine straw discharging device.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a plan view showing a binder binding device.

FIG. 2 is an explanatory diagram showing a relationship between a rib of a string guide plate, a packer, and a needle.

FIG. 3 is an explanatory view showing a relationship between a rib of a string guide plate, a packer and a needle in a conventional example.

[Explanation of symbols]

Reference Signs List 4 Packer for scraping stems and stems 6 Binding needle supply needle 10 String guide plate 11 Rib 11A edge 11a Edge portion 11b Edge portion A 1st intersection B 2nd intersection S Binding space

Claims (2)

(57) [Claims] 1. Bringing stems and stems into the front of the string guide plate (10)
A rib (11) for prevention is protruded, and the rib (11) protrudes.
Of the edge (11A) formed on the protruding edge, stem stem culm
Moving gauge at tip of packer (4) for scraping stems and stems
Closer to the binding space (S) than the first intersection (A) that intersects the trace
The stem portion (11a) is linearly formed from the first intersection (A) to the binding space (S). 2. Bringing stems and stems into the front of the string guide plate (10)
A rib (11) for prevention is protruded, and the rib (11) protrudes.
Of the edge (11A) formed on the protruding edge, stem stem culm
Moving gauge at tip of tying cord supply needle (6) in directional view
Rather than the second intersection (B) that intersects the trace, the binding space (S)
The edge portion (11b) located closer to the outside is
A straight line passing through the intersection (B) and the second intersection (B)
Than in the moving direction of the tying string supply needle (6).
Intersection angle (θ2) with the movement trajectory on the good side
A stem-and-culm binding device that is formed so that an angle is obtuse .