JPS596008B2 - Core sorting method and device - Google Patents

Description

[Detailed description of the invention] The present invention relates to multi-core cables, especially communication cables.

The present invention relates to a method of automatically separating and creating each core from a core group (ie, cores). Communication cables usually consist of an extremely large number of pairs, and to ensure their quality, each core wire of these cables is tested for disconnection, crosstalk, and other conditions. However, in this case, it takes a lot of effort to separate and select each of the tens or hundreds of pairs of core wires and conduct a test. The present invention has been made in view of the above points, and it mechanizes and automates the separation of core wire groups into the required number of wires, thereby eliminating the inefficient and troublesome work of manually separating the required number of wires one by one. To provide a method for easily and reliably separating core wires into a required number without wasting time and labor required for separating core wires.

An embodiment of the screening method of the present invention will be described in detail with reference to FIG.

In FIG. 1, reference numeral 1 denotes a wire sorting needle, and a wire restraining groove 2 is formed at its tip.

The core wire sorting needle 1 is configured to reciprocate inside and outside the frame 3 by a mechanism (not shown) for reciprocating it. Reference numeral 4 denotes a group of core wires inserted into the frame 3 and shown in the cross-sectional direction, and is always held at a corner of the frame 3 by a pressure welding device 5.

Reference numeral 6 denotes a passage provided at a corner of the frame 3 through which the core wire passing needle 1 passes.

In this configuration, how the core wires are separated and sorted will be explained with reference to FIGS. 3, as shown in a, the sorting needle 1 is inserted into the core wire group 4 held at an angle in the frame 3, separating one core wire at the corner from the other core wires. , and further the needle 1 advances as shown in .

Further, when the needle 1 reaches a position where it is flattened to c, the core wire is pushed by the lower edge of the needle 1 and placed in the core wire restraining groove 2.
After that, if the needle 1 is moved in the direction of the arrow as shown in d,
The core wire is restrained by the core wire restraining groove 2 and separated to the outside of the frame.

The separated core wires are then subjected to various tests using a testing device (not shown).

The core wire sorting needle repeats such a movement, and the core wires are continuously taken out. The direction in which the fiber sorting needle 1 separates and takes out the fibers is the direction in which the fiber sorting needle 1 advances (from the upper left to the lower right in the case of Fig. 1), and the opposite direction. However, since in the former case, other core wires may be pushed out along with the core wires restrained by the wire restraining groove 2, the latter method is more advantageous.

That is, the core wire sorting needle 1 is used to restrain one core wire in the restraining groove 2 within the frame 3 and take out the core wire in the opposite direction.In this case, the core wires are surely separated one by one. be able to.

As a mechanism for reciprocating the fiber sorting needle 1, various mechanisms such as a combination of a prime mover such as a motor and a link mechanism are used.

The pressure welding device 5 applies a pressing force in the direction of the arrow X3 using, for example, a spring so that the core wire is always held at the corner of the frame. The core wire can be easily restrained by moving it. The tip shape of the screening needle 1 used in the present invention (the shape of the line restraint groove 2) has a special shape as shown in FIG.

An example of a specific device configuration of the present invention will be described with reference to FIG.

That is, on the pedestal E, a mechanism B for reciprocating the fiber sorting needle A and a mechanism C for holding the fiber group D in a fixed position are provided.

The reciprocating mechanism B is a mechanism that converts the rotational movement of the rotating body B8 into the reciprocating movement of the attachment arm B4 of the core wire cutting needle A,
It is a link mechanism with a crank, slider, and lever. One end of the crank B1 is connected to a rotating body B8 by a pin B9, the other end is connected to one end of a slider B2 by a pin B6, and the other end of the slider B2 is connected to a lever B.
5 by a pin B7, and the other end of the lever B5 serves as a center point P for stable positioning.

If one end of crank B1 rotates, slider B2
moves reciprocatingly along a vertical groove S carved in the intermediate stand B3, while the lever B5 swings and follows it over 1/4 of the circumference.

Then, the mounting arm B4 of the sorting needle A fixed to the slider B2 moves back and forth as indicated by X.

The state changes at the start point and end point of one cycle of reciprocating movement are shown by a solid line and a two-dot chain line. According to the present invention as described above, the work of separating one core wire from a core wire group can be carried out by reciprocating a core wire sorting needle having a core wire restraining groove at its tip into a core wire group. This method is mechanized and automated by employing a method of "restricting each core wire in the core wire restraining groove and separating the core wire from a group of core wires," so there is no need to do it manually as in the past. It is possible to eliminate the wasted time and effort required to separate the core wires without having to perform the inefficient and troublesome work of separating them one by one, and it is possible to easily and reliably separate the core wires one by one. becomes.

Furthermore, by preparing a variety of screening needles, it is possible to easily deal with a variety of cables having different core wire diameters.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the main part for explaining one embodiment of the method of the present invention, Fig. 2 is an explanatory diagram showing various tip shapes of the screening needle used in the present invention, and Fig. 3 a and b are illustrations of the present invention. A plan view and a front view showing an embodiment of the invention device, FIGS. 4A, b, c,
d is an exploded explanatory view showing how the core wires are separated and sorted according to the method of the present invention. DESCRIPTION OF SYMBOLS 1... Core wire sorting needle, 2... Core wire restraining groove, 3... Frame, 4... Core wire group, 5... Pressure welding device, 6... Gutter.

Claims (1)

[Claims] 1. A fiber sorting needle having a fiber restraining groove at its tip is reciprocated in a direction substantially perpendicular to the pressing direction, into a group of fibers of a multi-core cable held under pressure at a corner of the frame; A method for sorting wires, characterized in that one core wire is restrained in the wire restraining groove and the core wire is pulled out in a direction in which the wire sorting needle returns.