JPS602007B2 - Stem culm binding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is configured so that the binding cord is knotted by the action of the knotting bill while the cord from the holder that holds one end of the binding cord is locked to the cord receiving material. The purpose of the present invention is to provide a stem and stem binding device capable of surely detecting abnormal winding of a stem around a nodule building, and to simplify the configuration thereof.

Therefore, as such a stem tying device, a method has been proposed in which a sensing body consisting of a limit switch is installed on the inner wall of the nodule cover near the nodule building to detect abnormal winding of the cord around the nodule building (for example, in practice). Publication No. 54-112731).

However, limit switches are generally structured to sense small displacements (due to restrictions imposed by the configuration of the binding device).

), when the volume of abnormal winding becomes large, or when not only the string but also the stalks and straw calendars are wound, resulting in a large amount of thin winding, this volume change cannot be absorbed. However, since the sensor is attached to the inner wall of the nodule cover, there is also the drawback that the switch or contacts may be easily damaged, and the switch may become erroneously activated if objects such as straw calendars get caught in it. there were. The present invention seeks to overcome these drawbacks.

Next, embodiments of the present invention will be described in detail based on the drawings. A stalk binding device 2 is attached to the rear of a threshing device 1 mounted on a combine harvester and binds waste straw after threshing and releases it into the field. A fine supply section 4 is provided on the lower side thereof, and a knot section 5 is provided on the upper side thereof, and a concentrated space S is formed between the thin supply section 4 and the knot section 5, and a needle 6 is provided from the string supply V supply section 4. Threshing is carried out in a state in which the threshing is supplied by V, and one end is received by the revolving door 8, which is configured to serve both as a binding cord held in the holder 7 of the knotting part 5 and as a release odor for releasing the tied stalks. Collect the waste straw in the space S, and after collecting a predetermined amount, tie the string around the holder 7 with the needle 6 while wrapping it around the straw, and then synchronize with the holder 7. Then, the knotting bill 9 is operated and knotted, and then the revolving door 8 is rotated 180 degrees to release the tied stalk. Said total supply section 4
In order to supply the binding string to the knot 5 from the center, the string provided close to the knot 5 on the upper side of the central space S pierces the guide groove 11 of the guide plate 1, and the needle is passed through the guide groove 11. A string receiving material 12 is provided on the plate 10 in a state where it crosses the guide groove 11, and a string is wound around the center of the stem to form a holder. In the state where the cord is supplied to the side 7, the cord is received and held at a predetermined position, and the cord is properly locked by the bill 9.

The string receiving member 12 has its one side green part attached to the plate 1, and its free end side receives and holds the binding string, so that when the binding string is abnormally wrapped around the building 9, the binding string is removed. It is constructed so that it can be bent and deformed under the pressure action of.

A strain gauge 13 is provided on the free end side of the surface of the string receiver 12 facing the knot 5 side, and a detector 14 that continues to monitor voltage changes is linked to the strain gauge 13. 14 is connected to a power supply circuit equipped with a buzzer B installed in the control section (not shown), and the circuit is configured to close when a voltage higher than a set value is detected. The alarm mechanism 15 is configured to sound the buzzer B as the winding occurs to notify the occurrence of trouble.
At the rear of the binding device 2, as shown in FIGS. 1 and 3, a guide portion 16 is provided which is curved toward the rear side and toward the tip side in order to act on the stock base side of the binding stalk east. It is constructed so that the stem can be guided and released towards the already cut side.

The guide portion 16 is attached to the support member 17 so as to be rotatable and fixed around the horizontal axis P, and the support member 17 is attached to the support frame 18 of the binding device 2 so as to be rotatable and fixed around the vertical axis Q. By rotating around both axes P and Q, the guide member 16 is attached to the frame 18 in a usage position in which it extends rearward and in a state in which it does not protrude outside the premises of the threshing device 1. The configuration is such that it can be switched to a non-use position in close proximity to each other.

In the embodiment described above, the cord receiving member 12 is configured to double as a sensor for detecting abnormal winding of the string around the building 9 due to the compound deformation. It is provided so that it can be moved or oscillated freely, and is biased by a spring or the like to maintain a predetermined posture, and due to abnormal winding, it is displaced by the pressing force of the string against the above-mentioned biasing force, and acts on the limit switch. Various modifications are possible, such as configuring it so that it is.

Furthermore, in the notification mechanism 15, a lamp may be turned on or blinked instead of the buzzer B.
The present invention can also be applied to binding devices used for binders.

In summary, the present invention provides the above-mentioned stem stem tying device, in which the string receiving member 12 is configured to be deformed or displaced by the pressing action of the tying string abnormally wrapped around the knot building 9, and the string receiving member 12 is It is an advantage that a mechanism 15 is provided to notify when deformation or displacement of the capital material 12 is detected.

In other words, since abnormal wrapping of the string around the building 9 is detected based on the pressing action on the string receiving material 12, the above-mentioned abnormality can be detected early and reliably, and the continuation of the tying mistake can be reliably avoided. Along with this, in the event of an abnormality, the amount of cord wrapped around the cord is small, and the length of the cord that has been wrapped can be easily removed, making it easier to perform troubleshooting operations. Since the shoulders are less likely to become clogged and the amount of displacement of the thin receiving member is sufficient, it is less likely to malfunction or damage the detection tool, that is, the string receiving material, making it possible to detect abnormal winding of the string around the desired knot building. has now been ensured.

Moreover, in order to detect abnormal wrapping of the string around building 9,
Since the string receiving member 12 itself is used as a sensor, the structure can be simplified.

[Brief explanation of the drawing]

The drawings show an embodiment of the stem tying device according to the present invention.
The figure is a side view of the main parts shown when installed on the combine harvester.
The figure is a partially omitted view taken along the row 0 line in FIG. 1 together with the notification mechanism, and FIG. 3 is a plan view showing the mounting structure of the guide member. 7...Holder, 9...Nodule building, 1
2... String receiving member, 15... Notification mechanism. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1 A stem culm tying device configured to knot the tying string by the action of the knotting bill 9 while the string from the holder 7 holding one end of the tying string is locked to the string receiving member 12. , the string receiving member 12 is configured to be deformed or displaced by the pressing action of the binding string abnormally wrapped around the knot building 9, and a mechanism 15 is provided that notifies when deformation or displacement of the string receiving member 12 is detected. A stem culm binding device characterized by: