JPH039696B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for untwisting cables, particularly multi-core cables such as communication cables, in which the cores are twisted in pairs or into wedges.

Generally, cables are subjected to various tests after they are manufactured, and in particular, cross-talk tests are conducted core by core.

In this case, since the cable is usually twisted together, it is necessary to untwist it and separate the cables one by one.

Conventionally, the work of untwisting cables was done manually, but this manual work took a lot of time to separate each core, and also caused fatigue because it was done manually. There is a drawback that the amount of work is limited due to reasons such as hand pain, and there has been a demand for mechanization.

As a technology to solve such problems, it was developed in 1983.
-34107 describes the use of a terminal processing device consisting of a pair of plastic brushes and a pair of wire brushes, which are arranged parallel to each other and rotate in opposite directions along the insertion path of the communication cable terminal. ing.

However, this terminal processing device untwists using a pair of plastic brushes, and the untwisting effect is limited to the area in contact with the brushes. The loosening force is not transmitted to the end of the cable, causing tangles, fraying, kinks, etc.
Furthermore, there were problems such as core damage and wire breakage.

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the drawbacks of the prior art described above and to provide an improved method for mechanizing the untwisting of cables.

That is, the gist of the present invention is to arrange upper and lower roller groups in which a plurality of rollers having brushes on their surfaces are arranged so that the length is approximately equal to the untwisted length of the cable, and to A cable terminal part is arranged between the roller groups so that the roller is located at the tip of the cable terminal part, the roller group is driven by a driving part to rotate the roller, and the cable is untwisted by the rotation of the roller. A method for untwisting a cable, characterized in that the cable end portion is untwisted by sequentially transmitting force from the cable main body side to the tip end of the cable end portion.

Next, one embodiment of the present invention will be further described with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes an untwisting roller having a brush on its surface, and a roller group of four rollers arranged in two stages, each having a length approximately equal to the untwisting length of the cable, is provided. The four rollers 1 in the upper and lower stages are interlocked by a pulley 2 and rotated by the rotation of a motor 3. Reference numeral 4 denotes a trolley for mounting these items, which can be easily moved.

The method for untwisting the cable is to first open the upper four rollers 1 upwards using the roller 1' as a fulcrum. Insert it so that it makes contact with the brush of roller 1. Thereafter, the motor 3 is driven to rotate the four upper and lower rollers 1 for untwisting. In this case, the rotation direction of the roller 1 is set so that the upper and lower rollers 1 rotate in opposite directions as shown by the arrows. Furthermore, after inserting the end portion of the sample cable 5 so that the roller 1 at the tip is located at the tip of the cable end portion, by lowering the four upper rollers 1 downward, the entire end portion of the cable 5 is rolled. 1
are simultaneously squeezed by the rotation of the cable 5, and the untwisting force is sequentially transmitted from the cable body side to the tip of the cable 5 terminal part.

In this way, the untwisting force can be transmitted sequentially from the cable body side to the tip of the cable 5, so that the cable 5 can be untwisted without tangling, fraying, kinking, or even core damage or disconnection.
It was possible to untwist the terminal part in a well-predicted manner from the tip to the main body side, and it was possible to untwist it efficiently and easily in a short time.

According to the method of the present invention as described above,
Since the work of untwisting the cables is changed from manual work to machine work, the amount of work can be increased, work efficiency can be improved, and burdens such as worker fatigue and hand pain are eliminated. It has great practical value.

[Brief explanation of the drawing]

The figure is an explanatory diagram showing one embodiment of the present invention. 1: Roller, 2: Pulley, 3: Drive motor, 4: Dolly, 5: Cable.

Claims (1)

[Claims] 1 A group of rollers with brushes on the surface arranged in two rows, each with a length approximately equal to the untwisted length of the cable, is arranged in upper and lower stages, and the tip roller in the roller group is placed at the tip of the cable end. A cable end portion is arranged between the roller groups so as to be located at , the roller group is driven by a drive unit to rotate the rollers, and the rotation of the rollers generates an untwisting force for untwisting the cable.
A method for untwisting a cable, comprising untwisting the cable end portion by sequentially transmitting the twist from the cable main body side to the tip end of the cable end portion.