JPH0223013A - How to untwist cables - Google Patents

Abstract

PURPOSE:To unstrand a cable efficiently without causing damage by arranging a plurality of roller groups having brushes on the surface vertically in two stages then inserting a stripped cable terminal comprising strands therethrough and rotating the roller groups. CONSTITUTION:Roller groups R, R' being driven through two motors 3, 3' are arranged vertically in two stages on a mobile truck 4. Each roller 1 in the roller groups R, R' is planted with a brush on the surface thereof and the roller groups R, R' rotate in the opposite directions as shown by arrows. The roller group R' is opened to a position shown by the dot and dash line then a stripped cable terminal comprising strands is mounted on the roller group R, thereafter the roller group R' is closed thus holding the cable 5. Thereafter, motors 3, 3' are started to rotate the roller groups R, R' through belts and pulleys so as to unstrand the core of the cable 5. By such arrangement, the cable core can be unstranded efficiently without damaging the strands and without causing kink or entanglement.

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 quads.

Generally, cables are subjected to various tests after they are manufactured, and in particular, in cross-wire testing, each core is tested one core at a time.

In this case, since the cable is usually twisted, it is necessary to untwist it and separate each core.

Conventionally, the work of untwisting cables has been done manually, but this work requires a lot of time to separate each core, and because it is done manually, it causes fatigue and pain in the hands. For this reason, there is a drawback that the amount of work is limited, and there has been a desire to mechanize it.

As a technology to solve such problems,
No. 107 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 rotated in opposite directions, along the insertion path of the communication cable terminal. .

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 untwisting force is not transmitted to the tip of the cable, causing tangles, fraying, kinks, and even core damage and disconnection along the way.

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 a roller group in which a plurality of rollers having brushes on the surface are arranged in upper and lower stages so that the length is approximately equal to the untwisted length of the cable,
A cable end portion is arranged between the roller groups such that the tip roller in the roller group is located at the tip of the cable end portion, the roller group is driven by a drive unit to rotate the roller, and the roller group is rotated by the rotation of the roller. This method of untwisting a cable is characterized in that the untwisting force for untwisting the cable is sequentially transmitted from the cable main body side to the tip of the cable terminal part to untwist the cable end part.

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 on the upper and lower stages are interlocked by a pulley 2, and are 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, and after opening, the end of the cable 5, which is the sample, is moved to the lower four rollers. Insert it so that it is in contact with the brush of 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, the cable 5 is simultaneously tightened (untwisting force is transmitted sequentially from the cable main 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 untwisting force can be transmitted sequentially from the cable body side to the tip of the cable 5. It was possible to untwist the part from the tip to the main body side in a noticeable manner, 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, the cable untwisting work is changed from manual work to mechanical work, so the amount of work can be increased, work efficiency can be improved, and further, It relieves the burden of worker fatigue and hand pain, and has great practical value.

[Brief explanation of the drawing]

The figure is an explanatory diagram showing one embodiment of the present invention. Roller 2: Booley 3: Drive motor 4: Trolley 5; Cable

Claims (1)

[Claims] A group of rollers with brushes on the surface arranged so that the length is approximately equal to the untwisted length of the cable is arranged in two stages, upper and lower, 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 such that A method for untwisting a cable, characterized by untwisting a cable end portion by sequentially transmitting the twist from the cable body side to the tip end.