JPS6145781Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, as a device for tying grain culms pushed into the bundling chamber by a tucking car, it has already been known that a string winding operation is started using a needle near the maximum compression point of the tucking car. However, since the pack car operates continuously, it immediately retreats from the point of maximum compression, so when the knotting mechanism consisting of the building and holder operates, it cannot compress the bundle culm, and the bundle cannot be tightened sufficiently. Nakatsuta.

The present invention is aimed at improving the above-mentioned drawbacks, and a binding chamber is provided at the rear of a focusing chamber equipped with a first scraping means with a door in between, and a rear door is provided at the exit of the binding chamber. In the bundling device, the grain culms collected in the bundling chamber are scraped into the bundling chamber by a transfer packer driven by a second packer shaft. Accordingly, the waiting position of the transfer packer is set at the rear of the door of the focusing chamber and at or near the maximum compression point, and the binding mechanism and the transfer packer are set in a state where the transfer packer compresses the focusing culm and is stopped. The grain culm is once converged by interlocking so that the knotting mechanism operates, and then transferred to the binding chamber by the transfer packer, and the transfer packer knots the bundled culm while maintaining it in a compressed state. That is.

The embodiment shown in the drawings will be explained below.1
This is a threshing device mounted on the base of a combine harvester, and a straw conveying chain 2 is stretched above the dust sorting chamber behind the culm discharge port.

Reference numeral 3 denotes a desk-shaped cutter having a switching plate 4 on its upper surface, which is attached to the rear of the threshing device 1.

Reference numeral 5 denotes a binding case of a binding machine installed on a culm passage 6 extending rearward from above the cutter 3, and its front part is supported by support rods 8 on support frames 7, 7 erected on both sides of the cutter 3. It is supported via an arm 9, and the rear part is supported by brackets 10, 10 on both sides of the rear part of the cutter 3.
An arm 12 and a pipe 12a are attached to a support shaft 11 installed in
A first packer shaft 13 which also serves as an input shaft is attached to the binding case 5 in order from the front.
The door shaft 14 and the second puller shaft 15 are supported by a knot shaft 16 and a needle shaft 17 on the same axis.
4. The second packer shaft 15 protrudes from both sides of the binding case 5, and connects the left and right pairs of packers 18, 18, doors 19, 19, and transfer packer 2, respectively.
0,20 are attached, and the above-mentioned police car 18,1
The installation width J of 8 is larger than the installation width H of the doors 19, 19, and the roll 18 in the middle part of the police car 18 is
a slides on the cam 18b and rotates as shown.

Reference numeral 21 denotes a chain driven by a sprocket 22 fixed to the first packer shaft 13, and is wound around sprockets 24, 25, 26 loosely fitted to the second packer shaft 15, intermediate shaft 23, and knot shaft 16. be.

The one-turn clutch of the second sprocket shaft 15 includes a tapered pawl 24a provided on the side surface of the sprocket 24, a clutch plate 27 into which a taper pin 27c is fitted and has a projection 27a and a pin 27b, a tapered hole 28a, and a clutch plate 27 having a protrusion 27a and a pin 27b. It consists of a cam plate 28 having a notch 28b and a receiving surface 28c in which the pin 27b is fitted, and a plate cam 29 with a large receiving surface and a plate cam 30 with a small receiving surface are fixed to the sides of this one-turn clutch. Yes, the arm 31 of the door shaft 14,
Reference numeral 31 rotatably supports one end of a connecting rod 32, and holds one end of a rod 34 holding a constant pressure spring 33 by loosely fitting it. A swinging arm 38a, which pivotally supports rolls 37a and 37b at the mating claw 36 and an intermediate portion thereof, respectively.
38b is provided protrudingly, the tip of one swinging arm 38b is rotatably connected to the other end of the connecting rod 32 with a pin, and the roll 37b is opposed to the plate cam 30,
The tip of the other swinging arm 38a is connected to the rod 34, and the roll 37a attached thereto is connected to the plate cam 29.
It is placed opposite.

Therefore, when the door pressure reaches a predetermined pressure set by the constant pressure spring 33, the claw 36 touches the receiving surface 28c of the cam plate 28.
The cam plate 28 is separated from the cam plate 28 due to the tensile force of the spring 39.
rotates slightly and pushes out the taper pin 27c from the taper hole 28a, so the clutch engages once, and the transfer packers 20, 20 scoop the culms collected in the collection chamber 55 into the binding chamber 54 all at once, compressing them to the maximum. At point A, the one-turn clutch is released and the motor stops.

Furthermore, the same one-turn clutch as mentioned above is attached to the connecting shaft 16, and the pawl 36 that engages with the cam plate 28 of this one-turn clutch is connected to the swing arm pivoted on the intermediate shaft 23. 40 by a link, and the swing arm 40 is activated when the protrusion 27a of the clutch plate 27 of the one-turn clutch rotates and comes into contact with the link 40.
0a, the pawl 36 is disengaged from the cam plate 28, and the one-turn clutch of the articulating shaft 16 is activated with a corresponding delay.

The nodal part consists of a building 41 and a holder 42,
The sweeper 44 is driven by the Geneva gear 43 fixed to the node shaft 16, and the sweeper 44 is driven by the pin 4 of the Geneva gear 43.
3a rotates via the fan-shaped cam 45, boss 45a and arm 45b, and releases the bundled straw bundles while cutting them, and the rear door 46 is rotated by the rear door shaft 46a.
It is pivoted by the cam 45 and opened and closed by the cam 45.

47 is a nodule guide, and the transfer packer 2
The bases of 0 and 20 are connected in a U-shape, and their operation is regulated by one link 48 on one side.

Reference numeral 49 denotes a needle whose base portion is attached to a rotating shaft 50, and the rotating shaft 50 is operatively connected to the needle shaft 17 which rotates integrally with the knot shaft 16 via a disassembly connecting rod 51 and crank arms 52, 52. has been done.

A guide plate 53 projects rearward from the rear end of the upper surface of the cutter 3 via the upper surface of the rotating shaft 50.

In the above-mentioned apparatus, the waste straw transported by the waste straw transport chain 2 is separated from the following straw by the left and right packers 18, 18 on both sides of the bundling case 5, as shown in FIG. It is constantly pushed in, and when it reaches a predetermined amount, the doors 19, 19 are rotated backward, the one-turn clutch of the second door shaft 15 is engaged, and the pair of left and right transfer packers 20, 20 move the door 1.
The waste straw collected in the collection chamber 55 on the front side of 9 and 19 is scooped into the binding chamber 54 all at once.

At that time, even if it is difficult for the doors 19, 19 to return to their original position with only the pressing force of the constant pressure spring 33 due to the transfer leakage, the plate cam 30 forcibly pushes the roll 37b, so the doors 19, 19 are moved through the connecting rod 32. When the plate cam 30 is completely returned, the plate cam 30 is released from the roll 37b, and the other plate cam 29 is pushing the roll 37a of the swinging arm 38a facing it, so the doors 19, 19 are moved by the constant pressure spring 33. Maintain the restored posture through
It catches the straw that is thrown in.

Then, the swinging arm 40 that activates the one-turn clutch of the nodal shaft 16 is pushed by the protrusion 27a of the clutch plate 27 slightly before the one-turn clutch of the second packer shaft 15 finishes rotating, so that the nodal shaft 16 is pushed by the protrusion 27a of the clutch plate 27.
1, in which the one-turn clutch of 6 is engaged and the transfer packer 20 scoops one bundle of waste straw from the collection chamber 55 into the bundling chamber 54, that is, the transfer packer 20 moves into the bundling chamber 54 behind the door 19. When the straw scraped inside is being compressed, the needle 49
enters the knotting section through the space in front of the transfer packer 20, winds and supplies the string, and tightens the string in the compressed state.

Next, the sweeper 44 releases the culm bundle to the rear while removing the knots.

Furthermore, if the number of revolutions of the sprocket 26 of the knot shaft 16 is made an integral number of times faster than the number of revolutions of the sprocket 24 of the second packer shaft 15, which is equipped with a one-turn crack, the doors 19, 19 may not be able to return completely due to culm clogging, etc. First, even if the transfer pucker 20, 20 performs continuous raking without the clutch of the second pucker shaft 15 being released once, the needle 49, bill 41, and holder 42 will not allow the transfer pucker 20, 20 to perform the next raking operation. Before doing so, the string is wound and knotted to return to its original position.

As described above, the present invention provides a binding chamber at the rear of the focusing chamber equipped with the first scraping means with a door in between, and a rear door is disposed at the exit of the binding chamber, so that the objects are collected in the focusing chamber. In a bundling device in which grain culms are scraped into a bundling chamber by a transfer packer driven by a second packer shaft, a one-turn clutch interposed on the second packer shaft moves the waiting position of the transfer packer into the bundling chamber. at the rear of the door and at or near the maximum compression point, and the tying mechanism and the transfer packer were interlocked so that the knotting mechanism operated while the transfer packer compressed the focusing culm and stopped. The grain culms are once bundled in the collection chamber and then transferred to the bundling room by the transfer packer, which allows one bundle of grain culms to be reliably separated and bundled, and the transfer packer transfers the grain culms to the bundling room. There is no obstacle to raking, and during tying, the needle wraps the string around the culm in the tying chamber, and while the bill and holder rotate once to tie the bundle, the second tying car shaft is The one-turn clutch is disengaged and the transfer packer is stopped at or near the maximum compression point,
A strongly compressed state is maintained irrespective of the raking of the grain culms in the collection chamber, and it is possible to bundle into a very tight bundle and release the bundle without pulling out the grain culms in the collection chamber.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a side view of a combine harvester equipped with a binding device, Figure 2 is an exploded sectional view of the binding case, Figure 3 is a side view of the binding section, and Figure 4 is an exploded perspective view of the one-turn clutch operated by the door. , FIG. 5 is a side view of the interlocking mechanism of two single-turn clutches. 5... Binding case, 15... Second pack car shaft,
16... Nodal axis, 18... Police car, 19... Door, 20... Transfer police car, 41... Building, 44
...Sweeper, 45...Sector cam, 46...Rear door, 49...Needle.

Claims (1)

[Scope of utility model registration request] A bundling chamber is provided at the rear of the bundling chamber provided with the first scraping means across a door, a rear door is provided at the exit of the bundling chamber, and the grain culms collected in the bundling chamber are transferred to the second packer shaft. In the bundling device, the transfer packer is moved into the bundling chamber by a transfer packer driven by a transfer packer, and a one-turn clutch interposed on the second packer shaft moves the transfer packer to a standby position at the rear of the door of the bundling chamber and at the end. A tying device, characterized in that the tying mechanism is set at or near a compression point, and the tying mechanism and the transfer packer are interlocked so that the tying mechanism operates in a state where the transfer packer compresses the converging culm and is stopped.