JPS6059351B2 - How to assemble linear bodies - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of assembling linear bodies using a central member.

General linear bodies, such as metal wires and organic wires, have a wide range of elastic limits with respect to tension, and elongation rates range from several percent to several tens of percent.
% exists.

Conventional methods of assembling multiple linear bodies of this kind to integrate them are two methods:
Two methods are known in which the fibers are twisted around a central member with relatively low elongation and high tensile stress.

In the former method, as shown in FIG.
is attached to a supply device 2, and each linear body 1 is simultaneously supplied from the supply device 2 and twisted through a collecting die 3.

In the latter method, as shown in FIG. 2, a core material 4 is passed along the center of a supply device 2 to which a linear body 1 is attached, and the linear body 1 is twisted around this central member 4. It is something to match.

In either method, the supply device 2 rotates around the axial extension of the assembly A that is being completed, but in that case, there is a method in which the linear body 1 is twisted; (in the case of FIG. 1);
It can be divided into two methods (the case shown in Fig. 2), which provides so-called untwisting, which rotates while untwisting.

When the aggregate A unified by the method described above is pulled in the longitudinal direction, it will elongate in response to the tension.

At that time, naturally, each of the constituent linear bodies will be stretched one by one.

It is sufficient if the elongation rate is within the elastic limit of the linear body, but if it exceeds this, the linear body will result in plastic deformation or breakage.

For linear bodies such as the metal wires and organic fibers mentioned above, which have a relatively wide elastic limit range, even if they are made into a single piece using the conventional method, they can be put to practical use in terms of tensile stress. When metal oxide linear bodies, metal salt single crystal linear bodies, etc. are integrated using conventional aggregation methods, they become aggregates that are extremely weak against tension.

In this case, even if a high tensile strength material is used as the central member, 2
~3% growth needs to be considered. In addition, metal oxide linear bodies, metal salt single crystal linear bodies, etc., which have a small elongation rate, are theoretically said to have an elongation of about 5%, but they cannot be integrated using conventional methods. Currently, the allowable elongation is limited to 1% or less due to surface defects, etc., and only aggregates with extremely small allowable elongation can be formed, which has a narrow practical range.

This invention was made in view of the above points, and when linear bodies with small allowable elongation are integrated to form an aggregate, the allowable elongation is within the theoretical elongation range of the linear bodies, for example, about 5%. The purpose is to provide an aggregation method that can expand .

Embodiments of the present invention will be described below with reference to FIGS. 3 to 5.

Supply device 2 that supports the linear body 1 wound around the drum
A central member 4 passes through the center of the supply device 2, and a collecting die 5 with a larger diameter than the conventional one is provided in front of the supply device 2. The fixing device 7 is provided so as to be able to move forward and backward with respect to the central member 4.

The central member 4 is usually a high tensile strength material with a large tensile stress, and the linear member 1 is the metal oxide linear material or metal salt single crystal linear material described above, and one or more is required. The number of pieces is selected.

A fixing device 7 fixes the linear body 1 that has been captured by the rapid feeding arm 6 and fed out to the central member 4 to the central member 4, and fixes the linear body 1 to the central member 4 from around the linear body 1 using a fixing device. Fixed to. As this fixing device, thread, tape, a plastic spring type, adhesive, adhesive, etc. can be used.

The gathering method of the present invention is carried out using a device having the above-described structure, in which the linear body 1 is supplied by a supply device 2, passes through a gathering die 5, and then passes through a rapid feeding arm 6 to a central member. 4.

The central member 4 is taken off in a fixed bundle by a capstan or the like, and when the central member 4 is taken off for a certain length,
That is, as shown in FIG. 3, when the linear body 1 is pulled out by the distance of the fixed portion B, the rapid feed-out arm 6 feeds out the captured linear body 1 to the central member 4, as shown by the dashed line in the same figure.

The position where the linear body 1 is fed out and contacts the center member 4 is the next fixing part B'', and the fixing device 7 is operated toward the center member 4 at the position where the linear body 1 and the center member 4 are in contact with each other. Then, the linear body 1 is fixed to the central member 4 using a fixture to form a fixed portion B''.

Above fixed part B. The central member 4 and the linear body 1 between l5B''
A comparison of the difference in length between the two will be explained in detail based on FIG.

That is, in the state shown by the solid line in FIG. 3, the tip position of the rapid feed-out arm 6, the length of the hypotenuse (length of the linear body) of the right triangle drawn by the central member male linear body 1, and the length of the base. There is a difference in the length (length of the central member), and the linear body 1 captured by the rapid feed-out arm 6 is fixed at the fixed part B'' as shown by the dashed line in the same figure.
When the linear body 1 is immobilized at , the linear body 1 is accommodated longer than between the fixing portions B and B'' by the length.

In Figure 3, the angle θ between the hypotenuse and the base of the triangle is
is 18 or more, the linear body 1 is 5
% longer.

Of course, it goes without saying that the angle θ can be changed as necessary. In the assembly A manufactured in this way, the central member 4 and the linear body 1 along the outside thereof are fixed at fixed intervals at fixing parts B, and between each fixing part B, the linear body 1 is fixed at a fixed interval. The body 1 is 5% longer than the central member 4.

Therefore, when this aggregate A is stretched in the longitudinal direction, only the central member 4 stretches, and no tension acts on the linear body 1 within the range of elongation of 5%, which means that the elongation is small. Even in the case of aggregate A using a metal oxide linear body or a metal salt single crystal linear body, the allowable elongation range can be expanded to about 5%.

In addition, after the assembly A is assembled as shown in FIG. 4, a plastic tape or metal tape 8 is placed vertically on the outer periphery, formed into a vibrator shape, and a thread or tape 9 is pressed and wound on top of it. Alternatively, as shown in FIG. 5, instead of pressing and winding, a plastic coating 11 may be applied using an extruder 10. If the coating is applied, handling becomes much easier.

As described above, according to the present invention, the central member and the linear body are fixed at regular intervals, and the fixed parts are housed 0 to -5% longer than the interval between the linear physical strength individual parts. Therefore, the aggregate can apply tension to the central member, and if the central member has a tension force so that the elongation is in the range of 0 to 5%, no elongation will be applied to the linear body. Even if the aggregate uses linear bodies with a small elongation rate, the allowable elongation of the aggregate can be expanded to about 5%, and an aggregate that is strong against tension can be obtained. There is an effect that can be done.

[Brief explanation of the drawing]

Figure 1 is a front view of the first example showing the conventional gathering method;
FIG. 3 is a front view of the gathering method according to the present invention, FIG. 4 is a front view of the first example of post-processing applied to the same, and FIG. It is a front view which shows a 2nd example. 1... Linear body, 2... Supply device,
4... Central member, 5... Dice, 6...
...Rapid feeding arm, 7... Linear body fixing device, A... Assembly, B... Fixing site.

Claims (1)

[Claims] 1 In a method in which a central member and one or more linear bodies are assembled and fixed at regular intervals around the central member, the linear body is The linear body is supported at a position apart from the central member by a feeding arm that moves forward and backward toward the member, and each time the central member is fed out a certain length, the feeding arm is advanced to the outer periphery of the central member to collect the assembled linear bodies. A method for assembling linear bodies, characterized by fixing them to a central member using a fixing device.