JPH0616659B2 - Discharging straw processing mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is configured by a reciprocally movable stock end pressing plate that strikes and aligns stock ends of straws discharged from a threshing device in a sideways posture by a conveying device. And a waste straw processing mechanism provided with a binding device.

[Conventional technology]

The above-mentioned waste straw processing mechanism is a device that binds or shreds the waste straw discharged from the threshing device mounted on the harvester, combine, etc., but in the binding process state, the harvester does not Since the grain culms are artificially supplied, the position of the stock end of the discharge straw sent from the threshing device is not constant, and in the combine harvester, the length of the cut culm culm is changed and the handling depth is adjusted frequently to reduce the threshing device. The tips of the straw discharged from the plant are relatively uniform, but the plant edge position is often not constant. Therefore, it is desirable to perform the bundling process in a state where the stock ends of the straws are aligned and the bundling position is fixed from the post-treatment surface such as sun drying.

Therefore, as a mechanism for sending the discharge straws discharged from the threshing device to the binding device while aligning them, for example, Japanese Patent Publication No. 57-548
As shown in Japanese Patent Publication No. 7, there is a mechanism that automatically moves a fixed guide plate that aligns the stock ends in the straw wall direction of the discharged straw according to the position of the stock edge of the discharged straw. .

[Problems to be solved by the invention]

The guide plate type described above is effective when the discharge straw is relatively hard and strong, but when the discharge straw is soft and weak, when the discharge straw begins to contact the guide plate, stem breakage etc. Occasionally, there is a case where sufficient stock alignment is not performed. Therefore, as an example of a means for solving this problem, the actual exploitation of Sho 56-8
There is a structure in which a rocking drive type stock end pressing plate is provided to forcibly strike the stock ends as disclosed in Japanese Patent No. 131, but this reciprocating motion mechanism such as the rocking drive type has a guide plate structure. It requires a larger device space than the above.

Here, an object of the present invention is to obtain a structure capable of bundling at a fixed position while automatically aligning the stock ends of the discharge straws by using the stock aligning device including the above-mentioned forced drive stock end pressing plate. It is in.

[Means for solving problems]

A feature of the present invention is that in the discharged straw processing mechanism described above, a pair of position sensors for detecting the presence or absence of the discharged straw are provided at the stock origin portion on the conveying path, in the straw-discharging direction of the straw, and to the stock aligning device. Arranged in a fixed position, the reciprocating operation range end of the stock end pressing plate in the stock arranging device and the position of the pair of position sensors substantially correspond to each other, so that the stock end of the discharge straw is located between the position sensors. A drive control mechanism for changing the position of the stock aligning device and the bundling device in the same direction and the same distance along the stray culm direction, and removing the drive control mechanism only between the stock aligning devices between the position sensors. It is configured so that it can be switched to a position in which the stock end of the straw is moved so that it is located, and its action and effect are as follows.

[Work]

With the configuration described above, of the pair of position sensors,
If the position sensor on the tip side is in the detection state and the position sensor on the stock end side is in the non-detection state, it means that the stock end of the discharge straw is located between both position sensors. In this case, if the drive control mechanism is set to control both the stock aligning device and the bundling device, the stock end of the discharge straw is fed into the working range of the stock end pressing plate and the stock alignment is performed normally. At the same time, it is bound at a certain position from the end of the stock.

And, for example, if both position sensors are in the non-detection state,
Since the waste straw will not be sent to the stock arranging device,
The drive control mechanism relatively moves the stock alignment device and the bundling device until the position sensor on the tip side is in the detection state.
Also, if both position sensors are in the detection state, the middle part of the discharged straw culm will be sent into the working range of the stock end pressing plate, so until the position sensor on the stock end side becomes non-detection state, The drive control mechanism moves the stock aligning device and the binding device in the opposite direction to the above. In this way, bundling is performed at a fixed position from the stock end while aligning the stock ends of the straws.

Next, when only the stock aligning device is controlled to move by the drive control mechanism, the position of the binding device is fixed, and the above-described control is performed. It is bound at a fixed position from.

〔The invention's effect〕

As described above, it is possible to switch between the state where bundling is performed at a fixed position from the plant end and the state where bundling is performed at a fixed position from the tip while automatically aligning the straw ends from the threshing device. As a result, the workability of the waste straw treatment is improved, and the structure has flexibility so that it can be applied to each form of the drying work performed after the waste straw treatment.

Further, by making the working range of the stock end pressing plate and the interval of the position sensor coincide with each other, the working range of the stock end pressing plate can be effectively used without waste, and the working range of the stock end pressing plate is set small. It is also possible to make the entire discharge straw processing mechanism compact.

〔Example〕

Hereinafter, regarding the exhaust straw processing mechanism that is an embodiment of the present invention,
It will be described with reference to the drawings. The waste straw processing mechanism is installed in the rear part of the threshing device mounted on the combine or the like. That is, as shown in FIG. 3 and FIG. 4, at the rear part of the threshing device (1), there is provided a transfer device (2) for sending out the discharged straw discharged in a sideways state in a diagonally rearward direction, and the transfer device (2) is provided. A bundling mechanism consisting of a bundling device (4) and a stock arranging device (7) is provided at the rear of the device (2), and a disc-shaped cutter (3) is provided below the transport device (2).
Are arranged. Then, by performing a swing switching operation of the switching cover (5) at the rear end of the transfer device (2) around the horizontal axis,
The discharge straw processing mechanism is configured so that it can be switched between a state where the discharge straw is sent to the disc type cutter (3) for shredding processing and a state where the discharge straw is sent to the binding mechanism for binding processing.

Then, the switching cover (5) is in a bundling state in a space formed in the lower side of the discharge straw transport path (R) to the bundling space (S) of the bundling device (4) and having a substantially triangular shape in a side view. When it is in the position, the auxiliary transfer is possible to transfer the waste straw to the bundling device (4) for feeding and the non-working position retracted to the bundling device (4) when in the shred processing state. The devices (6) and (6) are provided.

Next, the bundling mechanism composed of the bundling device (4) and the stock arranging device (7) will be described in detail. As shown in FIGS. A support frame (8) is provided, and a pair of guide rails (9) are installed on the support frame (8) along the length direction of the discharge straw, and the binding device (4) is installed on the guide rail (9). And the stock arranging device (7) is installed slidably.

The stock aligning device (7) is, as shown in FIG. 3, a stock end pressing plate (13) which is swingably driven around a vertical axis (P ₁ ) provided in this device.
In addition, the main body of this stock alignment device (7) is screwed and connected to the screw gear (10) arranged in the same direction as the guide rail (9), and the screw gear (10) is connected by the servomotor (11). Rotating and driving the stock alignment device (7) to guide rails
(9) The drive control mechanism (18) is configured so as to slide up.

And the binding device (4) on the same guide rail (9) is the first
As shown in the figure, by connecting the stock aligning device (7) with the connecting member (12), both (4) and (7) can be slid together. In this way, the stock arranging device (7)
By integrally driving and controlling the bundling device (4), bundling is performed at a fixed position from the stock end while aligning the stock ends. Further, the connecting member (12) and the binding device (4) are connected via the elongated hole (12a), and by changing the interval between the stock alignment device (7) and the binding device (4), the stock end It is configured so that the binding position from can be changed.

Next, as shown in FIG. 2, the connecting member (12) is removed, and the binding device (4) is clamped (14) by a guide rail.
If it is fixed at a proper position on (9), only the stock alignment device (7) will be slid on the guide rail (9).
By doing this, bundling is performed at a certain position from the tips while aligning the plant ends. This bundling position is also a bundling device
It can be set freely by changing the position of (4).

Next, the control system of the drive control mechanism (18) will be described in detail.
As shown in Figs. 1 and 3, a pair of limit switch type position sensors (16a) and (16b) are installed in the frame (15) extending forward from the stock-shaping device (7) in the direction of the straw frame. In this case, the positions of the position sensors (16a) and (16b) and the swing range end of the stock end pressing plate (13) are substantially aligned with each other. Also, a limit switch type sensor (17) for detecting the presence or absence of discharge straw is provided near the rear end of the transfer device (2) so that the binding mechanism operates when the sensor (17) is in the detection state. It has become.

In the position sensors (16a) and (16b), if the position sensor (16a) on the tip side is in the detection state and the position sensor (16b) on the stock end side is in the non-detection state, the stock end of the discharged straw is Is located between both position sensors (16a), (16b), and the stock end of the discharge straw is fed into the working range of the stock end pressing plate (13) to align the stock ends. The binding is performed at a fixed position from the end of the plant or at a fixed position from the tip of the tip.
Therefore, control is performed by the position sensor (16
The aforesaid servomotor (11) is driven so that a) is in the detection state and the stock position side position sensor (16b) is in the non-detection state.

[Another embodiment]

In the above-mentioned embodiment, the binding device (4) and the stock arranging device (7)
The structure is such that it is driven by two servo motors (11), but as shown in FIG. 5, both devices (4) and (7) are driven by independent servo motors (11) and screw gears (10). May be

Further, in the above-mentioned stock aligning device (7), a drive mechanism constituted by a spring and a locking cam mechanism for urging the stock end pressing plate (13) toward the pressing side is provided, and the stock end pressing plate (13) is raised. It is also possible to adopt a structure in which the ends of the waste straw stocks are aligned at a speed and driven so as to move backward relatively slowly.

[Brief description of drawings]

The drawings show an embodiment of a waste straw processing mechanism according to the present invention. FIG. 1 is a rear view showing a state in which a binding device and a stock aligning device are connected in the waste straw processing mechanism, and FIG. 2 is a waste straw processing mechanism. Fig. 3 is a rear view showing a state in which only the stock aligning device is moved in Fig. 3, Fig. 3 is a plan view of the discharge straw processing mechanism, Fig. 4 is a vertical sectional side view of the discharge straw processing mechanism, and Fig. 5 shows another embodiment. It is a rear view. (1) ... threshing device, (2) ... conveying device, (4) ... binding device, (7) ... stock alignment device, (13) ... stock end pressing plate, (16a), (16b) ...... Position sensor,
(18) …… Drive control mechanism.

Claims (1)

[Claims] 1. A stock alignment comprising a reciprocally movable stock end pressing plate (13) for striking and aligning the stock ends of the straws discharged from the threshing device (1) by the carrying device (2) in a sideways posture. A device (7) and a discharge straw processing mechanism including a bundling device (4), wherein a pair of position sensors (16
a) and (16b) are placed in the stock origin part on the transport path in the direction of the straw culm and in a fixed position with respect to the stock aligning device (7). Edge pressing plate (13)
And the pair of position sensors (16a), (16
Match the positions of b) to the corresponding positions and position sensors (16a) and (16b).
A drive control mechanism that moves the stock aligning device (7) and the bundling device (4) in the same direction in the same direction and at the same distance so that the stock ends of the drainage straws are located between them. (18) is provided, and the drive control mechanism (18) is moved to a position where only the stock alignment device (7) is positionally changed between the position sensors (16a) and (16b) so that the stock end of the straw is located. A discharge straw processing mechanism configured to be switchable.