JPH073785Y2 - Cable twisting and loosening device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an improvement of a cable unraveling device for unraveling the cores of a multi-core cable.

[Prior Art] Generally, various tests are performed on a multi-core cable such as a communication cable after completion of manufacturing. Particularly, in the cross-link test, each core is tested one by one.

In this case, since the cables are usually twisted, it is necessary to loosen the twists and separate the fibers one by one.

As an example of the conventional twisting and loosening device,
There is one disclosed in No. 07.

That is, it is an "apparatus for loosening the twist of the cable core by inserting the ends of the communication cable from which the outer cover is peeled off between a pair of plastic brushes that are parallel to each other and are driven to rotate in opposite directions".

[Problems to be Solved by the Invention] However, in the case of the above-mentioned conventional technique, a plastic brush in which a large number of rigid plastic monofilaments are radially arranged around the outer periphery of the rotary shaft is used. At times, there was a drawback in that the plastic brush was inferior in flexibility against external force due to contact with the core wire, and the plastic brush was quickly damaged.

The present invention has been made in view of the above points, and by making it flexible against the contact force at the time of unraveling the twist, the durability of the plastic brush is improved, and the twisting unraveling efficiency is dramatically improved. It is intended to provide a twisting and loosening device.

[Means for Solving the Problems] The gist of the present invention is to insert a core wire of a multi-core cable between rollers that are driven via a motor and a pulley and are arranged to face each other and have plastic wires implanted. In a cable untwisting device for untwisting the twist of the core wire of the cable, the roller is provided with a rubber plate on its surface, and the rubber plate is provided with a plurality of rows in the longitudinal direction of the roller, which are adjacent to each other. A plurality of plastic wire-implanted grooves are arranged with a predetermined gap so that the rows are staggered, and the plastic wires are bent into a U-shape in the plurality of plastic-wire implanted grooves, and one end of the plastic wire is implanted. Is exposed from the back side of the rubber plate to the front side through the plastic wire flocking groove, and the other folded tip is embedded in the rubber plate from the back side of the rubber plate. A cable twisting and disentangling device, which is characterized in that it is pierced and flocked.

[Operation] Since the plastic wire is planted on the rubber plate provided on the surface of the roller, the plastic plate has flexibility to be easily deformed even when an unreasonable force is applied to the plastic wire when untwisting. Less damage and improved durability.

In addition, when the core wire comes into contact with the rubber plate part other than the part where the plastic wire is planted, an appropriate frictional force works between the core wire and the rubber plate, and the twisted core wire is stretched straight. Efficiency is dramatically improved.

In addition, the plastic brush can be easily manufactured by penetrating one end of the plastic wire from the back side of the rubber plate, and the other end of the plastic wire is folded back in a U shape and embedded in the rubber plate. Since the hair is brushed and flocked, the retaining strength against pulling of the plastic wire is significantly improved.

[Embodiment] Hereinafter, an embodiment of the present invention shown in the drawings will be described.

As shown in FIG. 3, the twisting and disentangling device is rotated by a trolley 1 and a motor 2 (2a, 2b) provided on the trolley 1 and a pulley 3 (3a, 3b) by the motor 2. Roller 4 (4
a, 4b, 4c, 4d), rollers 5 (5a, 5b, 5c, 5d) and the like.

In the twisting and disentangling device configured as described above, the rollers 4 and 5 provided with the brush are rotated via the motor 2 and the pulley 3, and the cable 6 is inserted between the rotated rollers 4 and 5, and the core wire thereof is inserted. The untwist of 6a is unwound to form the unwound core wire 6b.

The structure of the brush used in the twisting and disentangling device thus configured is shown in FIGS. 1 and 2.

That is, in this embodiment, the brush is provided with the rubber plates 9 on the surfaces of the rollers 4 and 5, and the rubber plates 9 are provided with a plurality of rows in the longitudinal direction of the rollers so that the adjacent rows are staggered. There are provided a plurality of plastic wire-implanted grooves 10 arranged with a predetermined gap therebetween.

Then, as shown in FIG. 2, the plastic wires 11 are bent in a U shape in the plurality of plastic wire-implanted grooves 10, and one end of the plastic wire-implanted grooves 10 penetrates the plastic wire-implanted groove 10 from the back surface side of the rubber plate 9. Is exposed to the front surface side, and the other folded back end is attached to the rubber plate 9 from the back surface side of the rubber plate 9.
The plastic wire 11 is supported by the rubber plate 9 so that the rubber plate 9 can be easily attached even if an unreasonable force is applied to the core wire during unraveling. It gives the flexibility to transform into, and the durability is greatly improved without damaging the brush.

Further, the rubber plates 9 are provided on the surfaces of the rollers 4 and 5, and when the core wires come into contact with the rubber plate parts other than the part where the plastic wires are planted, an appropriate frictional force works between the core wires and the rubber plates. , The untwisted core wire is stretched straight, and the untwisting efficiency is dramatically improved.

Furthermore, the plastic brush can be easily manufactured by penetrating one end of the plastic wire 11 from the back surface side of the rubber plate 9, and the other end of the plastic wire 11 is folded back in a U shape and embedded in the rubber plate 9. Since the plastic wire 11 is pierced and flocked so that even if a pulling force is applied to the plastic wire 11, the folded portion of the plastic wire 11 can be closely attached to the bottom surface of the rubber plate 9 and can be held.
The retention strength for preventing the pulling out of the plastic wire 11 is significantly improved.

[Advantage of the Invention] As described above, according to the present invention, the roller is provided with the rubber plate on the surface thereof, and the rubber plate is formed with a plurality of rows in the longitudinal direction of the roller. A plurality of plastic wire-implanted grooves are arranged so that they are staggered with a predetermined gap, and the plastic wires are bent into a U-shape in the plurality of plastic-wire implanted grooves, and one end is made of rubber. The back side of the plate penetrates through the plastic wire flocking groove and is exposed to the front side, and the other folded tip is pierced by the back side of the rubber plate so that it is embedded in the rubber plate. Because
Even if an unreasonable force is applied to the core wire at the time of unraveling the twist, the rubber plate gives the flexibility to be easily deformed, and the brush is not damaged and the durability is greatly improved.

Also, by providing a rubber plate on the surface of the roller, when the core wire contacts the rubber plate part other than the part where the plastic wire is planted, an appropriate frictional force acts between the core wire and the rubber plate, and the twisting and loosening Since the twisted core wire is stretched straight, the unraveling efficiency is dramatically improved.

In addition, the plastic brush can be easily manufactured by penetrating one end of the plastic wire from the back side of the rubber plate, and the other end of the plastic wire is folded back in a U shape and embedded in the rubber plate. Since the hair is brushed and planted, it has an excellent effect that the retaining strength against pulling out of the plastic wire is remarkably improved, and its practical value is great.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a brush used in the cable unraveling device of the present invention, FIG. 2 is a front view of the same embodiment, and FIG. 3 is an embodiment of the cable unraveling device of the present invention. It is a side view of an example. 2: Motor, 3: Pulley, 4,5: Roller, 6: Cable,
6a: core wire, 9: rubber plate, 10: plastic wire flocking groove, 11: plastic wire.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuya Suzuki 5-1-1, Hidaka-cho, Hitachi-shi, Ibaraki Hitachi Cable Co., Ltd. Hidaka factory (56) References JP-A-50-97165 (JP, A) ) Actually open 48-8071 (JP, U) Actually open 56-163931 (JP, U) Actually open 57-34107 (JP, U) Actually open 61-34926 (JP, U) Actually open 61- 77824 (JP, U) Actual public Sho 49-36310 (JP, Y1) Actual public Sho 58-16659 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A plastic wire (11) driven by a motor (2) and a pulley (3), arranged opposite to each other.
In a cable twisting and unraveling device for inserting the core wire (6a) of the multi-core cable (6) between the rollers (4) and (5) in which the hairs have been implanted, and for untwisting the core wire (6a) of the cable, The rollers (4) and (5) are provided with a rubber plate (9) on the surface thereof, and the rubber plate (9) has a plurality of rows in the longitudinal direction of the rollers, and the adjacent rows are adjacent to each other. A plurality of plastic wire-implanted grooves (10) are provided so as to be staggered with a predetermined gap, and the plastic wires (11) are formed in a U-shape in the plurality of plastic wire-implanted grooves (10). By being bent, one end of the rubber plate penetrates the plastic wire implantation groove (10) from the back surface side of the rubber plate and is exposed to the front surface side, and the other end of the other end is bent from the back surface side of the rubber plate (9). It has been pierced by being pierced so as to be embedded in the rubber plate (9) Cable stranding loosening device, characterized in that.