JPS6312680Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for preventing loosening of a binding string in a grain culm tying machine installed in a grain culm harvesting machine such as a combiner or a binder.

In general, this type of grain culm binding machine is configured to bundle a predetermined amount of grain culms collected in a binding chamber and throw them out of the machine. In the above-mentioned binding operation, when a predetermined amount of grain culms are bundled through the packer into the binding chamber in which the binding strings are stretched in a transverse manner, the one-turn clutch mechanism is operated in accordance with this, and the needle, Nodal action will be performed by buildings etc. By the way, the binding cord is paid out in an arcuate trajectory due to the rotation of the needle, and the binding cord paid out along this feeding trajectory is stretched between two points, the locking protrusion of the knotter guide and the tip of the needle. It becomes flaccid because it is set. However, if it remains loose, the binding cord will come off the locking protrusion of the bill or knotter guide, resulting in poor binding, so the binding cord must be tensioned with an appropriate amount of tension. Therefore, conventionally, the binding string is stretched under tension via a locking body provided in the string feeding path. However, since the binding cord is in a tensioned state even when the packer is in operation to converge the grain culms, as shown in FIGS.
1, when the grain culm group A is converged into the binding chamber B, the tensioned binding string 19 obstructs the transfer of the grain culm group a and crushes it, and a part of the grain culm group a is removed from the tip of the packer 11. This may cause problems in separating bundles from tied bundles and untied bundles, or the grain culm group may become knotter guide 25.
The disadvantage is that the grain culms are not transported to the predetermined bundling position even when the packer 11 is operated, and the grain culms are bent or the culm posture is disturbed, resulting in poor bundling. It was hot.

The present invention was devised in order to eliminate these drawbacks in view of the above-mentioned circumstances, and although it is capable of keeping the binding cord under tension and preventing the binding cord from coming off from buildings etc. A grain culm that can relax tensioned binding strings when a packer moves grain culms to a bundling position, thereby ensuring that the grain culms are transferred to the bundling position and effectively preventing bundling defects. The object of the present invention is to provide a device for preventing loosening of binding strings in a binding machine.

The structure of the present invention will be described based on an embodiment shown in the drawings. 1 is a grain culm binding machine mounted on the rear part of the fuselage 2 of a combine harvester;
After being threshed in the threshing section 3, it is transferred to the conveyor chain 4.
The grain culms transported through the machine are tied together in predetermined amounts and thrown out of the machine. 5 is feed chain, 6
is a cutter device provided below the conveyance end of the conveyance chain 4, and 7 is a switching guide plate that switches to supply the grain culms conveyed by the conveyance chain 4 to either the grain culm binding machine 1 or the cutter device 6. be.

An operating shaft 8 constituting the grain culm binding machine 1 is interlocked and connected to a transmission shaft 9 which is linked to a drive source via a bevel gear 9a, so that it constantly rotates. A gear 8a fixed to the operating shaft 8 was fixed to a packer shaft 10a for the first packer 10, which collects the grains transported by the transport chain 4 into a collection chamber A provided on the front side of the grain culm binding machine 1. A gear 10b and a gear 12 loosely fitted to a packer shaft 12 for a second packer 11 that transfers the grain culm group collected in the collection chamber A to the binding chamber B provided at the rear side of the grain culm binding machine 1.
a, so that the first packer 10 is constantly operated on a focusing locus l shown in FIG. 1, and the second packer 11 is intermittently operated on a focusing locus m. That is, when a predetermined amount of grain culm is collected in the collection chamber A by the first packer 10, the pressing force from the first packer 10 is applied to the door 1.
3 senses. Then, the second packer shaft 12 rotates once through the one-turn clutch mechanism 14 interlocked with the detection of the door 13 to operate the second packer 11, and the needle shaft 15a and the binding shaft 1
6a rotates once and the needle 15, bill 16, etc. perform knotting operations to form a bundle C, and the sweeper 17 operates to throw this bundle C on a throwing trajectory n.
This allows it to be thrown towards the rear of the aircraft. 18 is a culm receiver provided in the binding chamber B.

On the other hand, a wound ball 19a of the binding string 19 is stored in a basket 20 provided in the machine frame 1a, and the binding string 19 pulled out from the wound ball 19a is connected to a brake device 21 and a guide 2 provided in the basket 20.
2. Needle 1 via locking body 23, guide pipe 24, guides 22a, 22b, 22c (described later)
As it is fed out on the feeding path that leads to 5,
The distal end side of the binding string 19 crosses the binding chamber B and is locked to a string locking protrusion 25a provided on the knotter guide 25, and is further held by a holder 26 via the building 16. The locking body 23 is attached to the support shaft 23
As shown in FIG. 2, the string passing portion 23b at the tip is pivoted to the machine frame 1a via the frame 1a, and is in a tension position in which the string passing portion 23b at the tip is erected, absorbing the slack of the binding string and keeping the binding string taut. , and a relaxed position in which the tie string is relaxed. Locking body 2
A bracket 23c is fixed to the base end of 3, and the bracket 23c has one end of the bomb 27, the other end of which is locked to a protrusion 27a protruding from the machine frame 1a, and the other end of which has a crank shape. Inner wire 28 connected to second packer shaft 12 via connecting body 29
One end of each is fixed. When the second packer shaft 12 is not rotating, the locking body 23 is biased and held in the tensioned position by the bomb 27, but when the second packer shaft 12 is intermittently rotated, Sometimes, the inner wire 28 is pulled in conjunction with the rotation of the crank-shaped connecting body 29 accompanying the rotation of the second packer shaft 12, and is forcibly displaced from the tensioned position to the relaxed position against the bullet 27. It's summery. 30 is an outer wire, 31 is an outer stopper, and 32 and 32a are guide plates provided in focusing chamber A and focusing chamber B, respectively.

Next, the operation of the present invention constructed as described above will be explained. Now, when the grain culms that have been threshed in the threshing section 3 are conveyed to the conveyance end side of the conveyance chain 4, they are converged into the convergence chamber A by the first packer 10, which constantly performs convergence operation along the convergence locus 1. When a predetermined amount of grain culms are collected in the collection chamber A, the door 13
senses the pressing force of the first packer 10. The second packer shaft 12 rotates once through the one-turn clutch mechanism 14 that is linked to the sensing operation of the door 13, and the second packer 11 is operated to transfer along the transfer trajectory m. The group is transferred to binding room B. The needle shaft 15a and the binding shaft 16a are rotated in synchronization with this transfer, and after the knotting operation is performed, the tied bundle C is thrown by the sweeper 17 to the rear outside the machine.

In such a binding action of the grain culm, the binding string 19
Since the needle 15 makes a reciprocating motion with the needle shaft 15a as a fulcrum (from the solid line position to the imaginary line position in FIG. 1), the tip of the needle 15 is paid out along an arcuate drawing locus. When the needle 15 has returned to its original state, it is tensioned between the locking protrusion 25a of the knotter guide 25 and the tip of the needle 15, and loosens. Since the binding string 19 is stretched and absorbed, the binding string 19 is stretched across the binding chamber B in a tensioned state. By the way, when the door 13 senses that a predetermined amount of grain culm has been collected in the collection chamber A, the second packer shaft 12 rotates in conjunction with this and performs the knotting operation. Inner wires 28 connected via a crank-shaped connecting body 29 by rotation of
is pulled against the ammunition 27, and the locking stopper 23 is placed in the relaxed position. Therefore, the tensioned binding cord 19 releases its loosening lock and becomes relaxed in accordance with the timing when the grain culm group is transferred from the bundling chamber A to the binding chamber B by the second packer 11, so that the grain culm The group is transferred to the binding chamber B without being obstructed by the binding string 19 and crushed. Therefore, when the grain culms are transferred by the second packer 11, the grain culms are not partially leaked or bent from the tip of the second packer 11, and are transferred in an appropriate posture to perform the knotting action. This can effectively prevent the occurrence of bundling defects. Moreover, the binding cord 19
Since the knotter guide 25 is always in a tensioned state when not acting as a binding, it will not come off inadvertently from the locking protrusion 25a of the knotter guide 25, and it is also possible to prevent bundling failures due to the binding string 19 coming off.

In this embodiment, the focusing chamber A and the binding chamber B
I have explained the grain culm binding machine 1 which is separated from the
The present invention is not limited to this, and can also be implemented with a grain culm tying machine that binds the bundled grain culms as they are without transporting them. In this case, the loosening prevention by the locking body is released every time the pack car is constantly converging, so if the amount of grain condensation is small, there is a risk that the binding string will become too loose and come off from the building, etc. For example, if the loosening body which is linked to the gathering operation of the packer is configured to fall down gradually in accordance with the amount of grain culms to be gathered, it is possible to prevent the phenomenon of the binding string coming off.

In summary, the present invention is a grain culm tying machine in which a tying cord for tying grains transferred to a tying chamber via a packer is stretched across the tying chamber in a string feeding path of the tying cord. , a locking body is provided to prevent the binding cord from loosening and keep it taut.
Since the locking body is operatively connected to the packer to release the locking in conjunction with the grain culm transfer operation of the packer, the binding string is always kept under tension by the locking body, and the building When the grain culm is transferred by the packer, the locking body linked to the packer releases the lock in time with the grain culm transfer operation and binds the grain. As a result of making the strings loose, the grain stems to be bundled into the tying chamber are reliably transferred to the tying chamber and subjected to the tying operation without being hindered by the traversing tying strings. Therefore, the grain stalks can be reliably bound without causing bundling defects with a simple structure in which the loosening prevention body is linked to the grain stalk transfer operation of the packer to release the loosening prevention.

[Brief explanation of drawings]

The drawings show an embodiment of a device for preventing loosening of binding strings in a grain culm tying machine according to the present invention. FIG. 3 is a plan development view of the transmission system of the same essential parts, and FIGS. 4 and 5 are explanatory diagrams of the conventional operation. In the figure, 1 is a grain culm binding machine, 11 is a second packer,
15 is a needle, 19 is a binding string, and 23 is a locking body.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a grain culm tying machine in which a tying string for tying grain culms transferred to a tying chamber via a bundle car is strung across the tying chamber in a transverse manner, string manipulation of the tying string is performed. A locking body for stopping the loosening of the binding cord and keeping it taut is provided in the delivery path, and the locking body is operatively connected to the packer in order to release the locking mechanism in conjunction with the grain culm transfer operation of the packer. A device for preventing loosening of a binding string in a grain culm binding machine. 2. The grain culm binding machine is provided with a grain culm binding chamber where the grain culms are bundled in the first packer and a grain culm binding chamber where the grain culms bundled in the grain culm collection chamber are transferred via the second packer. In the grain culm tying machine according to claim 1, the locking body is configured to release the locking mechanism in conjunction with the grain culm transfer operation of the second packer. Strap loosening device.