JPH0325546Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a binding machine for binding grain culms, waste straw, etc.

(b) Conventional technology Conventionally, a binding machine in which a bundler, a needle, a knotter, and a sweeper were arranged on one side of the culm passage was developed by the Special Publication Corporation in 1973.
This is already known from Publication No. -22486.

(c) Problems to be solved by the invention The needle of the known tying machine enters the culm passage, winds the tying cord around the bundled culms, locks it in the holder, and then returns to the culm for the next tying process. Since the tying string used in the tying process is wrapped around the tied bundle, the sweeper will push out the tying string along with the bundle when the bundle is released, and the tying string for the next tying process will be cut or pulled out from the holder. It was not possible to repeat the binding action.

(d) Means for solving the problem The present invention has a patch car, a needle, and a needle on one side of the culm passage.
In a tying machine provided with a knot part and a sweeper, a needle shaft projects to the other side of the operating path of the sweeper, the needle is formed in a spiral shape, and the front end of the needle faces a part corresponding to the knot part,
The base is fixed to the protruding part of the needle shaft, and the sweeper and the needle are connected so that the needle enters the culm passage and the bundle is hooked, and the sweeper releases the bundle while pulling it out from the needle, thereby releasing the binding string. By guiding the bundle to the rear side of the bundle, the binding string is prevented from being wrapped around the bundle, thereby solving the above-mentioned problem.

(e) Action When the packer gathers a predetermined amount of culms in front of the door, the one-turn clutch engages, the needle wraps the binding string around the gathered culms, and the knot is knotted.
The sweeper pushes the bundle with the needle intruding into the knot, removes the knot, and releases the bundle.

At that time, since the needle is formed in a spiral shape, the string pull-out part at the tip penetrates into the nodule part.
On the base side, the bundle is held at a part that is away from the part where the binding string is hung in the direction of the culm, so the bundle is released as if being pulled out from the needle.
Then, when the needle returns, it brings out the binding string.

(f) Example An example of the present invention will be explained with reference to the drawings.
Reference numeral 1 denotes a lower guide plate which is connected from the lower part of the straw discharge part of the combine harvester to the diagonally rear lower part, and an upper guide plate 3 is provided above the culm passage 2 in opposition to the lower guide plate. A transmission case 5 of the binding machine is installed in the lower part of the tying machine, and an input shaft 6 supported at the front part is driven by the shaft of a threshing device installed at the front part, and a gear 7 fixed to the input shaft 6 is connected to a packer shaft 8. The packer 10 has its base supported by a swing arm, and its intermediate part is rotatably connected to a crank arm 11 that rotates integrally with the packer shaft 8, so that the packer 10 operates by scraping along a trajectory a. None, needle crankshaft 12
A gear 13 rotatably attached to the gear 9 is meshed with the gear 9, and a crank arm 15 protruding from the needle crankshaft 12 is interlocked and connected to a fan-shaped gear 16 loosely fitted to the packer shaft 8 via a rod 17. A pinion 20 fixed to the needle shaft 18 meshes with the sector gear 16.

The sprocket 21 spline-fitted to the needle crankshaft 12 is interlocked with a sprocket 23 integral with the binding shaft 22 via a chain 24, and the disc 2 fixed to the upper part of the binding shaft 22
The bevel gear 25 integrated with 5a is connected to the bevel gears 28, 2 of the building 26 and holder 27 that constitute the joint part.
Gear 3 meshes with 9, rotates once, and is fixed at the bottom.
0 is the gear 3 fixed to the shaft 31a of the sweeper 31
It meshes with 2.

Furthermore, the door shaft 35 to which the door 33 is attached is connected to a constant pressure spring, via a link 36, as in the conventional case.
The needle crankshaft 12 rotates once when the one-turn clutch 37 is engaged.

The needle shaft 18 protrudes toward the panicle side through the lower part of the culm passage 2, and the base of a needle 38, which has a spiral shape and is made of a pipe, is fixed to its tip.
0 is waiting at the bottom of the lower guide plate 1 when it is collecting and converging the waste straw.

In the above-mentioned bundling machine, the waste straw discharged from the threshing device of the combine is sent to the door 3 by the pack car 10.
3, and when it reaches a predetermined amount,
The one-turn clutch 37 is engaged, and the needle crankshaft 12 rotates together with the gear 13, thereby rotating the binding shaft 22 and the shaft 31a of the sweeper 31, so that the fan-shaped gear 16 is rotated clockwise in FIG. 1 by the crank arm 15. The pinion 20 meshing therewith rotates counterclockwise.

At that time, the needle 38 is the first needle when viewed from the culm direction.
As shown in the figure, when the straw is divided into the front and back and overlapped with the pack car and made a half turn through the front and rear straws in the raking direction, the binding cord 39 passed through the needle 38 and pulled out from its front end is bundled. As the waste straw is wrapped around the straw, the building 26 and holder 27 are activated to bind the bundle, resulting in the state shown in FIG. do.

In this state, the tip side of the needle 38 has penetrated below the lower guide plate 1, so that the tip side of the bundle is closer to the base side than the middle portion of the needle 38, as shown in FIGS. 3 and 5. Since the crank arm 15 is held down and the crank arm 15 exceeds the top dead center, the amount of operation of the needle 38 is extremely small, and the sweeper 31 pushes down the door 33 and pushes out the bundle while drawing an operation trajectory b shown in FIG.

At this time, the bundle is released by pulling out the tip side from the spiral needle 38, and the needle 38 functions as a resistance rod installed on the ear side in the conventional binding machine, and eventually ,
As shown in FIG. 5, the bundle is released toward the harvested field on the ear side while turning around the ear side.

Thus, the fan-shaped gear 16 is connected to the crank arm 1.
5 and rotates counterclockwise,
The needle 38 guides the binding string 39 inserted into the hollow thereof to the rear in the direction of release of the bundle from the hole at the front end in the return stroke as shown in FIG. returns to the predetermined receiving posture.

In addition, the guide groove of the nodule guide 40 is connected to the needle 3.
As shown in FIG. 5, the tip side is open so that it can penetrate up to the middle part of the tip.

(g) Effects of the invention As mentioned above, this invention has a patch car 10, a needle 38, a knot and a sweeper 3 on one side of the culm passage 2.
1, the needle shaft 18 is made to protrude to the other side of the operating path of the sweeper 31 in the culm passage, the needle 38 is formed in a spiral shape, and the front end of the needle 38 is attached to a part corresponding to the knot part. The base is fixed to the protruding part of the needle shaft 18, and the sweeper 31 pulls out the bundle from the needle 38 with the needle 38 entering the culm passage 2 and hooking it with a string. Since the structure is configured so that the binding string is guided to the rear side of the bundle to be released, when the sweeper 31 releases the bundle, the tip end side of the needle 38 enters into the knot part and the sweeper 31 The needle 38 can be reliably discharged by pulling it out from the needle 38 while holding the vicinity of the binding string 39 that binds the bundle. The binding string is drawn out and then placed on standby, allowing the subsequent binding to be performed accurately.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Fig. 1 is a side view showing the transmission mechanism of the tying machine and the one-turn clutch inserted and starting operation, Fig. 2 is an exploded sectional view of the transmission mechanism, and Fig. 3 shows the needle in the stringing operation and the sweeper. Fig. 4 is a side view of the sweeper in a state where the sweeper starts to emit a bundle and the needle begins to return. Fig. 5 is a perspective view of A in Fig. 3. FIG. 3 is a plan view showing a state in which a string is attached.

Claims (1)

[Scope of claim for utility model registration] (1) Patch car 10 and needle 3 on one side of culm passage 2
8. In a binding machine provided with a knot part and a sweeper 31, the needle shaft 18 is made to protrude to the other side of the operating path of the sweeper 31 in the culm passage, the needle 38 is formed in a spiral shape, and the needle 38 is formed into a spiral shape.
The front end faces the part corresponding to the tubercle, the base is fixed to the protruding part of the needle shaft 18, and the sweeper 31 and the needle 38 are connected with the needle 38 entering the culm passage 2 and being hung with a string. A tying machine characterized in that the sweeper 31 is connected to release the bundle while pulling it out from the needle 38, and the tying string is guided to the rear side of the bundle to be released. (2) The tying machine according to claim 1, wherein the needle shaft 18 protrudes toward the culm ear side. (3) The tying machine according to claim 1, which is a registered utility model, wherein the needle 38 is constructed of a pipe, and the tying string is inserted into the hollow part of the needle.