JPS6031132Y2 - Communication cable manufacturing equipment - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a communication cable manufacturing device.

Conventionally, a pair or quad of communication cables is constructed by coating a single conductor with an insulator to form a core wire, and then twisting two or four core wires together. Since the insulation coating process and the core wire twisting process are separate, there was a problem in terms of production efficiency.

In addition, in the case of a quad cable, in order to improve the intra-quad crosstalk characteristics, it is necessary for the conductors of the four core wires to be located at each vertex of a square. Quad collapse occurs due to an imbalance of mutual forces, and this is one of the causes of deterioration in crosstalk characteristics.

In order to eliminate these drawbacks, the present invention improves production capacity by extruding an insulator with a circular cross section and making cuts along the length of the insulator, omitting the core wire twisting process, and The crosstalk characteristics are improved by preventing the conductors that make up the quad from shifting, and the drawings will be explained in detail below.

FIG. 1 shows a first embodiment of the present invention, in which 1 is an insulator extrusion device, 2 is a conductor, 3 is a conductor feeding bobbin, and 4 is a conductor extrusion device.
5 is a conductor embedding device, and 5 is an insulator.

An insulator 5 having a circular cross-sectional shape is extruded from the insulator extrusion device 1, and then enters a conductor embedding device 4 which rotates around the insulator 5.

Here, a cut is made in the insulator 5, and at the same time, the conductor 2 paid out from the conductor payout bobbin 3 is embedded in the cut.

FIG. 2 is an enlarged view of the conductor embedding device 4 of FIG. 1.

6 is a guide roll, 7 is a cutting blade, and 8 is a conductor embedding guide.

The cutting blade 7 faces the center of the insulator 5 as shown in Figure 2, and its shape is like the tip of a boat's shaft, and after cutting the insulator 5 and making a groove, The conductor 2 is pushed out and guided by the conductor guide roll 6 along the inside of the cutting blade 7, and is embedded in the groove by the conductor embedding guide 8.

FIG. 3 shows a state in which the conductor 2 is embedded in the insulator 5 of the conductor embedding device 4, as viewed in the cross-sectional direction of the insulator 5.

Further, FIG. 4 is a sectional view of a pair of communication cables manufactured in this manner, and FIG. 5 is a sectional view of a quad.

FIG. 6 shows a second embodiment of the present invention, where 9 is a pair or quad, and 10 is a twisting capstan.

This communication cable manufacturing method involves fixing the conductor embedding device 4, which was rotating in the first embodiment shown in FIG. The communication cable thus obtained has the same effect as the communication cable obtained by the embodiment shown in FIG.

As explained above, according to the manufacturing apparatus of the present invention, it is possible to omit the core wire twisting process and form a pair or a quad, so that production efficiency can be improved and The quad has the advantage of being less prone to deformation and improving crosstalk characteristics.

[Brief explanation of drawings]

1 is a constituent country of the first embodiment of the present invention, FIG. 2 is an enlarged view of the conductor embedding device 4, FIG. 3 is a sectional view of the insulator 5, and FIG. 4 is a sectional view of the pair. Figure 5 is a sectional view of the cut, Figure 6
The figure shows the constituent countries of the second embodiment of the present invention. 1...Insulator extrusion device, 2...Conductor, 3...Conductor feeding bobbin, 4......
・Conductor embedding device, 5... Insulator, 6...
・Conductor guide roll, 7... Cutting blade, 8.
...Guide for embedding conductor, 9...pair or quad, 10...capstan for twisting.

Claims (1)

[Scope of utility model registration request] In a communication cable manufacturing apparatus comprising an insulator extrusion device 1 for extruding an insulator 5, a payout bobbin 3 for feeding out a conductor 2, and a conductor burying device 4 for burying the conductor 2 in the insulator 5, the conductor burying device 4 However, a prow-shaped notch blade 7 whose inner side serves as a passageway for guiding the conductor 2 to the embedding guide 8 is placed at a target position on the circumferential surface of the insulator 5.
A communication cable manufacturing device characterized by comprising one or four cables.