JPS597288B2 - Stem culm binding device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a stem culm binding device.

Generally, in stem culm binding devices, bundling errors may occur due to string breakage or failure of various operating parts.

Therefore, it was considered to detect these bundling errors and issue an alarm, but some of the bundling errors include, for example,
If the binding cord held in the holder shifts from the nodule position due to the building due to vibration of the machine or a large amount of stem culm bundles being scraped into it, resulting in an unexpected binding error, etc. Accidental and self-resolving mistakes occur, and if such accidental mistakes were to be detected and inspected every time they occurred, work efficiency would be significantly reduced, which was inconvenient.

In view of the above points, the present invention avoids inspections caused by accidental bundling errors and prevents deterioration of work efficiency, and also makes it possible to reliably detect bundling errors due to abnormalities that cannot be resolved naturally. It is an object of the present invention to prevent the occurrence of many bundling defects and damage to a bundling device.

Next, embodiments of the present invention will be described in detail based on illustrative drawings.

The drawing shows a waste straw binding device 2 attached to the rear of a threshing device 1 mounted on a combine harvester.
The straw is conveyed to the side away from the eid chain 3, and flows down into the binding space S along the downstream guide plate 5, and the straw is collected by the packer 6, and after being bundled by a predetermined amount, the string on the upper side is It is configured so that the binding cord is wound around the bundled and discharged straw from the supply section 7, and is supplied to the knotting section 8 on the lower side, knotted and tied, and the bundled and discharged straw bundle is pierced by the discharge arm 9 and forcibly discharged to the rear of the machine. Then, the waste straw binding device 2 is installed so that the waste straw after threshing is tied and sequentially released into the field.
has been configured.

Behind the bundling device 2 and below the waste straw bundle release path R caused by the release force of the release arm 9, there is a A flow path R1 for the bundled waste straw is formed.

On one side of the downstream route R, there is a downstream route R1 in a natural state.
As the waste straw flows down, the weight of the waste straw should open the flow path R1. A limit switch L is provided in contact with the limit switch 10, and a bundling error detection mechanism 11 is constructed so that a bundling error with respect to the waste straw can be detected based on the action of the limit switch L.

In the figure, reference numeral 12 denotes a resistance rod that is elastically biased so as to always maintain a posture that crosses the waste straw bundle release path R. When releasing the waste straw bundle, it swings downward due to the discharging force of the discharge arm 9 and moves along the path R. R is opened to allow the passage of the waste straw bundle, and when releasing the unbound waste straw bundle, the waste straw part A located on the upper side in the discharge direction of the discharge arm 9 becomes entangled with the waste straw part B on the side receiving the release action. However, this is to prevent the particles from being released along the release path R without flowing down the flow path R1, and to ensure that bundling errors can be detected reliably.

As shown in FIG. 2, the limit switch L includes a timer circuit T that opens the power supply circuit C at predetermined set time intervals (for example, 2 to 3 minutes) and maintains the energized state for each set time; And three switches L, , L2, L that close sequentially as the limit switch L is activated.
It is connected in series with a switch circuit C1 provided with 3.

The switch circuit C and the timer circuit T are connected by a first reset circuit C3, and at the same time when the power supply circuit C is opened by the timer circuit T, even if one or both of the switches L, , L2 are closed. , all switches L
, , L2, and L3 are configured to return to the open state.

LM in the figure is a main switch.

An alarm circuit C3 in which an alarm device 13 and a timer T1 are connected in series is connected to the circuit C, and the switch L
1, L2, and L3 are all closed and the switch circuit C is closed, the alarm circuit C2 is closed and the alarm device 13 is activated to issue an alarm.

A second reset circuit C4 is connected to the timer T, and the alarm circuit C3 closes for a predetermined period of time (for example,
It is configured to open when the alarm sounds (for 5 seconds) and stop the alarm.

With the above configuration, when the bundling error detection mechanism 11 detects bundling errors three or more times within a predetermined set time, it automatically issues an alarm to notify of an abnormality in the bundling state.

Therefore, for example, even if the tension on the tying string is loosened and the tying string is in a state where it is susceptible to vibrations of the machine body, and tying errors occur discontinuously and relatively frequently, it can be detected.

The set time and the number of times of error detection for detecting an abnormality in the binding state may be set as appropriate, and are not limited to the values in the above embodiment, and the activation time of the alarm device 13 may also be set as appropriate. Good.

Based on the detection of an abnormality in the binding state, it is possible to operate various mechanisms other than the alarm device 13, such as disengaging the travel clutch and stopping the travel, and these are collectively referred to as the desired mechanism 13. .

The present invention can exhibit remarkable effects when applied to the waste straw binding device 2, which is generally located at the rear of the aircraft and difficult to monitor from the control section. Applicable to all devices.

In summary, the stem culm binding device according to the present invention is configured to activate a desired mechanism 13 such as an alarm device 13 when the number of mistakes detected by the bundling mistake detection mechanism 11 exceeds a set number within a set time. It is characterized by

In other words, by activating the desired mechanism 13 such as the alarm device 13 only when a set number of bundling errors or more are detected within a set time, the bundling that does not normally occur in a short period can be resolved accidentally and naturally. You can avoid the inconvenience of having to perform an inspection due to a mistake and reduce work efficiency. On the other hand, since abnormalities that require inspection and repair generally result in frequent bundling mistakes, you can be sure to know about them and avoid bundling defects. It has now been possible to reliably prevent the frequent occurrence of problems and failure of the bundling device.

[Brief explanation of drawings]

The drawings illustrate embodiments of the stem and culm binding device according to the present invention, with FIG. 1 being an overall side view and FIG. 2 being a block circuit diagram. 11... Bundling error detection mechanism, 13...
Alarm device, desired mechanism.

Claims (1)

[Claims] 1. A stem and culm binding device characterized in that it is configured to activate a desired mechanism 13 such as an alarm device 13 when the number of mistakes detected by one bundling mistake detection mechanism exceeds a set number within a set time.