JPH0327389Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a bundling device such that the bundling space is located at a location separated by an appropriate distance from the conveyance end of the waste straw clamping and conveying device that conveys the tied waste straw, and The present invention relates to a waste straw bundling processing device for a threshing machine, which is provided with a packer for picking up waste straw from the transport end portion of the transport device to the bundling space.

In this type of conventional waste straw bundling processing device, the end portion of the pinching conveyance path of the waste straw holding and conveying device and the conveyance start end of the waste straw conveyance path to the bundling space are located at the same or almost the same level. However, in this case, when the waste straw bundles are sent out in a close state from the waste straw clamping and conveying device, the packer is moved to the non-contact part that has not yet come off from the waste straw pinching and conveying device. It rushes into the following bundle of waste straw to be scraped, which not only damages the bundle of waste straw but also tends to cause bundling errors.
If the moving locus of the packer wraps around the end of the waste straw clamping conveyance path, or is brought close to the end, the above-mentioned troubles are more likely to occur, so it is necessary to provide an appropriate distance between the two. However, this had the disadvantage that the transfer performance of the waste straw bundles deteriorated.

The purpose of the present invention is to improve the above-mentioned drawbacks by rationally modifying the clamping and conveying path of the waste straw clamping and conveying device and the waste straw conveying path to the bundling space. The characteristic configuration of the present invention, which has been made to achieve this objective, is that the waste straw conveyance path to the bundling space is provided with a transfer cover for placing and conveying the waste straw, a waste straw guide rod that locks and guides the straw from above, and The conveyance start end of the waste straw conveyance path is located below the conveyance end of the clamping conveyance path of the waste straw clamping and conveying device, and there is a level difference sufficient to allow the waste straw bundle to fall. Furthermore, the packer is constructed with a plurality of scratching protrusions arranged such that the distal end movement trajectories of the respective scraping protrusions sequentially overlap partially.

The functions and effects of the above characteristic configuration are as follows.

In other words, even if the waste straw bundles are sent out in close contact with the waste straw clamping and conveying device, the scraping target is It is possible to satisfactorily separate the preceding discarded straw bundle from the subsequent discarded straw bundle that is not to be scraped.

In addition, by locking and guiding the waste straw guide rod that forms the waste straw transport path, the waste straw bundles collected in the bundling space are effectively prevented from returning toward the conveyance start end side, and are equipped with a plurality of protrusions. With the packer having a sequential raking action in a long region of the conveyance path, reliable raking operations can be continued for each predetermined amount.

Therefore, by rationally improving the structure, even if the waste straw bundles are sent in close contact with each other, they can be separated from the following straw bundles, and there is less risk of overfeeding or underfeeding. The reliable raking and conveying guide makes it possible to always perform a good bundling operation with an appropriate amount of straw bundles.

Hereinafter, embodiments of the present invention will be described based on the drawings.

To configure a harvester, which is an example of a threshing machine,
A threshing device 4 is mounted on a body frame 2 having a pair of left and right crawler traveling devices 1, 1, with its threshing peg carrying device (an example of a straw removing straw holding and carrying device) 3 extending along the left and right lateral directions. On the grain culm supply port side of the threshing device 4, a grain culm supply stand 5 that can be changed between a substantially horizontal grain culm supplying position and a storage position is installed, and on the straw removal exit side of the threshing device 4, the said threshing clamp is installed. A bundling device 6 is provided which collects and ties a plurality of bundles of waste straw sent out from the conveying device 3 in a horizontal orientation, and then releases the bundles. The grain culm bundles bound in advance are placed on the grain culm supply stand 5 and fed to the threshing device 4 while being manually transferred.

To configure the binding device 6, a packer 8 for scraping the waste straw bundles into the binding space 7 and a needle 9 for supplying binding cords are provided in the lower part of the binding space 7, and a needle 9 for supplying binding strings is provided in the upper part of the binding space 7. is equipped with a string holder 10, a string knotting pill 11, and a discharge arm 12 for discharging a large bundle of bundled waste straw.

The thresher feed chain 1 is arranged along the upper part of the handling opening of the threshing device 4 to configure the threshing peg conveying device 3.
The guide pins 16 of the plurality of clamping rails 15 which are pivotally connected to each other are attached to the rail base 14, which is suspended along the lower part of the threshing feed chain 13. In addition to being inserted and supported so as to be freely displaceable in the far and near directions relative to the conveyance surface,
The clamping rails 15 are connected to the threshing feed chain 1
A spring 17 is provided that biases the clamping and conveying surface of the rollers 3 to 3.

Also, among the clamping rails 15..., the guide pin 16 of the clamping rail 15 located at the conveyance terminal end
is configured to double as a sensor that is displaced as the conveyed waste straw bundle passes, and it is detected that a predetermined number of waste straw bundles have been collected in the bundling space 7 based on the number of displacements of the guide pin 16 that also serves as a sensor. At that time, needle 9, pill 11,
A known one-turn clutch (not shown) for knot actuation, which is interposed between the holder 10 and the ejection arm 12, is configured to automatically engage and actuate.

Thus, the transport cover 1 forms the waste straw transport path A from the threshing clamp transport device 3 to the bundling space 7.
8 and the straw removal guide rod 19, the conveyance cover 18 is configured in a curved and inclined position such that the upper side of the conveyance is positioned downward, so that its starting end overlaps with the rear part of the rail stand 14 in rear view. At the same time, the starting end of the waste straw guide rod 19 that locks and guides the waste straw from above is positioned to overlap with the conveyance end part of the threshing feed chain 13 in rear view, and then the waste straw is conveyed along the waste straw conveyance path A. The starting end is connected to the clamping conveyance path B of the threshing clamp conveying device 3.
A step for dropping the bundle of waste straw is formed so as to be located below the end of the transport, and the waste straw transport path A is arranged so that the end of the transport is located higher.

In this way, when feeding grain bundles manually, even if the bundles are conveyed in close contact with each other, the removed straw conveying path A and the pinching conveying path B
The bundles are reliably separated from each other at the step between the
The raking operation for each bundle of waste straw can be smoothly performed while avoiding inconveniences such as entering into the following bundle of waste straw.

The packer 8 has four scraping protrusions 8a at appropriate intervals in the conveying direction of the waste straw bundle, and these scraping protrusions 8a are used for the following (a), (b), and (c). It is integrally formed and meets the requirements.

(a) Adjacent tip movement trajectories of the scraping protrusions 8a... partially overlap with each other.

(b) The locus on the lower side of the conveyance is sequentially located higher.

(c) The uppermost trajectory of the conveyor faces the outlet of the straw discharged. Furthermore, when the packer 8 moves from the maximum scraping position or its vicinity to the transport cover 18, the tip movement locus of each scraping protrusion 8a is as follows.
Each scratching protrusion 8 is formed in a trajectory with a slight receding angle with respect to the conveyance cover surface.
The pushing surfaces a... are formed in a shape such that they are located within the above-mentioned tip movement locus, so as to suppress the withdrawal of the waste straw to the lower part of the conveyance cover 18. Further, the back surface of each of the scraping protrusions 8a is formed into a wedge shape with an angle larger than the retreating angle to improve the separation performance from the succeeding straw removal.

[Brief explanation of the drawing]

FIG. 1 is a rear view of the harvester, and FIG. 2 is an enlarged rear view of the main parts. 3... Discharged straw clamping and conveying device, 6... Binding device,
7... Binding space, 8... Packer, 8a... Scraping protrusion, 18... Straw removal guide rod, A... Straw removal conveyance path, B... Clamping conveyance path.

Claims (1)

[Claims for Utility Model Registration] 1. The bundling device 6 is provided in such a way that the bundling space 7 thereof is located at an appropriate distance from the transport end of the waste straw holding and conveying device 3 that transports the bound threshed waste straw. In addition, in a waste straw bundling processing device of a threshing machine, which is provided with a packer 8 for picking up waste straw from the transport end portion of the transport device 3 to the bundling space 7, a waste straw transport path A to the bundling space 7 is provided. , is formed by a transport cover 18 for placing and transporting the waste straw, and a straw guide rod 19 for locking and guiding the waste straw from above, and the transport start end of the waste straw transport path A is connected to the waste straw holding and transporting device 3. The packer 8 is positioned below the conveyance terminal end of the clamping conveyance path B and with a level difference sufficient to allow the waste straw bundle to fall, and furthermore, the packer 8 is positioned so that the tip movement locus of each of the scraping protrusions 8a... A waste straw tying device for a threshing machine characterized by comprising a plurality of scraping protrusions 8a arranged so as to overlap one another in sequence. 2. The waste straw tying device for a threshing machine according to claim 1, wherein the waste straw conveyance path A is located higher toward the end of the conveyance.