JPH04234911A - tying machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a T-protrusion device for a binding machine, and is used for combine knotters and binders.

0002

[Prior Art] The T protrusion device in this type of binding machine is
The grain culms that are sent one after another into the bundling passage are received and concentrated,
When the amount becomes constant and the grain culm pressure reaches a predetermined value, a configuration is known in which the retracting operation is performed to engage the bundling clutch. In order to tightly bind the grain culms, this T-protrusion has a configuration in which a spring is used to assist in preventing the bundled grain culms from opening until the pressure of the bundled grain culms reaches a certain level.

[0003] Therefore, this conventional T-protrusion is
It is advantageous to be able to use a spring to apply tension in a direction that prevents the grain from opening in order to tightly bind the grain culms, but as a result of being regulated by the spring during the ejection process, the opening action of the T protrusion is poor and the binding is poor. There was a defect that caused many discharge errors.

0004

[Problems to be Solved by the Invention] The above-mentioned conventional structure is convenient for tightly bundling the grain culms, but since the T protrusion does not open smoothly at the time of release, errors in bundling and release occur. was.

[0005]

[Means for Solving the Problems] The present invention has a building 2, a string holder 3, and a discharge rod 4 on one side of a binding passage 1, and a packer 5, a needle 6, and a T-protrusion 7 on the other side. The T-protrusion 7 is provided with one end pivotally connected to the terminal end of the bundling passage 1 to receive the bundled grain culm.
In addition to preventing the opening until the grain culm pressure reaches a predetermined value,
This is a T-protrusion device for a binding machine that is tensioned by an auxiliary spring 8 that assists in opening when the grain culm pressure exceeds a predetermined value.

[0006]

[Embodiment] A binding machine 9 is provided with a building 2, a string holder 3, and a discharge rod 4 on one side of a binding passage 1, and a packer on the other side.
5, a needle 6, and a T protrusion 7. The bundling passage 1 is configured such that grain culms are fed from the supply side and, after being tied, are discharged to the outside of the machine from the discharge side.

[0007]The structure of each of these members is such that the building 2 acts as a knotter for the supplied binding string, and the string holder 3 holds the binding string. Release rod 4
The structure is such that the bundled grain culm bundles are discharged outside the machine. The packer 5 is configured to compress the grain culms fed into the bundling passage 1. The needle 6 is configured to wrap a binding cord around the bundled grain culm.

[0008] The T protrusion 7 is provided so that one end thereof can be pivotally connected to the terminal end of the binding passage 1 to receive the bundled grain culm, and when it is rotated backward by a certain angle due to the pressure of the bundled grain culm, it engages the binding clutch. The configuration is as follows. The T projection 7 is tensioned by an auxiliary spring 8 attached between the end of the arm 11 projecting from the T projection shaft 10 and the body.

That is, this auxiliary spring 8
The structure is such that the T protrusion 7, which receives the grain culm bundle in the focused state, is tensioned into the grain culm receiving state. When the T-protrusion rotates by a certain angle during the process of releasing the grain culm, the auxiliary spring 8 causes a fulcrum crossing phenomenon to occur and tensions the T-protrusion in the direction of opening. In addition, the above-mentioned auxiliary spring 8
In the embodiment shown in FIGS. 1 and 2, a tension spring is used, and in the embodiment shown in FIGS. 3 and 4, a pressure spring is used.

[0010] Next, its operation will be explained. first,
After the binding string is let out by a needle 6 and one end is held in a string holder 3, the string is stretched through the upper part of the building 2 and into the binding passage 1. Then, the binding machine 9 feeds the grain culms from the starting end of the binding path 1 while transmitting power and constantly rotating the packer 5.

[0011] Then, the grain culm is pressed against the T projection 10 and concentrated under the action of the packer 5 which continues to compress and rotate. In this process of grain culm concentration, T
The protrusion is tensioned in the direction of compressing the grain culm by the pressure of the auxiliary spring 8, and receives the grain culm so as to be tightly focused. Then, when the grain culms in the bundling passage 1 reach a predetermined amount,
The T projection 7 is pressed by the pressure of the focused grain culm and rotates slightly backward while resisting the auxiliary spring 8 to engage the binding clutch.

First, the needle 6 winds a binding string around the bundled grain culm, passes the string over the building 2, and holds it in the string holder 3. Next, the string operates with constant timing between the building 2 and the string holder 3 to perform a knotting action. Next, the discharge rod 4 starts the discharge operation while maintaining the timing with these, and discharges the grain culm bundle from the bundling passage 1 to the outside of the machine. At that time, the grain culm bundle is discharged under the discharge action. Binding is completed in the process of

At this time, the T-protrusion 7 is pressed by the bundle and rotates slightly backward, so that the tip of the arm 11 to which the auxiliary spring 8 is attached is on the ejection side from the T-protrusion shaft 10 (see Fig. 2). (see), the auxiliary spring 8 acts in the opening direction, helping to smoothly release the grain culm bundle. The spring action is the same even in the structure using the push spring of the other embodiment shown in FIGS. 3 and 4.

[0014] As described above, the bundled grain culm bundles are discharged outside the machine by the discharge rod 4, and the binding work of one bundle is completed.

[0015]

As described above, the T-protrusion device of the tying machine according to the present invention uses the auxiliary spring to regulate or assist the action of the T-protrusion, thereby preventing grain culms fed into the tying passage. It is possible to tightly focus the material by applying tension with a spring force, or to apply the spring force in the opening direction of the T-protrusion during the ejection operation to eliminate ejection obstruction.

Therefore, the present invention has the advantage that there is almost no occurrence of bundling errors during discharging, and smooth and reliable bundling and discharging can be performed.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing essential parts of the present invention.

FIG. 2 is a front view showing the operation of the present invention.

FIG. 3 is a front view of another embodiment of the invention.

FIG. 4 is a functional front view of another embodiment of the present invention.

[Explanation of symbols]

1 Binding passage 2 Building
3 String holder 4 Release rod

Claims (1)

[Claims] Claim 1: A building 2, a string holder 3, and a release rod 4 are provided on one side of the binding passage 1, and a packer 5, a needle 6, and a T-protrusion 7 are provided on the other side. One end is pivotally connected to the terminal end of the bundling passage 1 to receive the bundled grain culm, and this T protrusion 7 prevents the bundling passage 1 from opening until the grain culm pressure reaches a predetermined level, and also prevents the grain culm pressure from being opened. A T-protrusion device for a binding machine that is tensioned by an auxiliary spring 8 that assists in opening when the amount exceeds a predetermined value.