JPS5820527B2 - Core wire coating stripping method and device - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] The present invention provides a method for continuously stripping the insulation coating of core wires that are selected one by one from a group of core wires in a multi-core cable such as a communication cable by an appropriate method. and regarding its equipment.

[Prior art]

Conventionally, in multi-core cables such as communication cables, after stripping the cable sheath, each core wire was stripped of its insulation coating using a hand tool such as nippers.

After that, cable continuity tests and cross-wire tests were conducted using appropriate test equipment.

However, stripping the cores of a multi-core cable one by one was time-consuming and tiring.

In particular, it took many people to strip the insulation from a large number of cables at once, which was inefficient.

[Object of the invention] □ The object of the present invention is to solve the above-mentioned drawbacks of the prior art, and to provide insulation coatings for core wires that are selected one by one by an appropriate method.
The object of the present invention is to provide a new and useful method and device for stripping the core wire coating, which can be stripped continuously and automatically.

[Characteristics of the invention]

The most distinctive feature of the present invention is that an endless belt is used as the core wire coating stripping component.

Another feature of the present invention is that a protruding piece is used as the core wire guide component.

This projecting piece is a member that is installed on the top of the rotating roller and projects laterally.

〔Example〕

The present invention will be explained in detail with reference to FIGS. 1, 2, and 3.

(Part 1) In Figures 1 and 2, 1 is a communication cable, 2 is its core wire, and 1 is a cable between a pair of rotating rollers 21 and 22.
Supplied by book.

The height of the roller 21 is greater than that of the roller 22, and on the tops of both rollers are supported projections for guiding the conductor, for example thin plates 31, 32.

Due to the action of this thin plate, the core wire 2 is moved between both rollers 21°22
It's easier to get in between.

Subsequently, as both rollers rotate, the core wire 2 is gripped by the spiral grooves 51 and 52 formed on the circumference of each roller, and is sequentially fed downward (in the axial direction of the rollers).

A pair of flaw guides 4L42 are installed on the rear side of the roller, sandwiching the passage line of the core wire 2.

This guide is a heating element or a cutting blade shaped as shown by dotted lines, and scratches the insulation coating at a predetermined position of the core wire 2 that is sent downward.

The flawed core wire 31 eventually moves to the rollers 21°22.
A pair of endless rubber belts 23 and 24 hung on the lower part of the
By being held between the belts, the tubular insulating coating 4 is separated from the gap and the conductor 5 is exposed, and after passing through the belt, a conductor 51 is obtained with the insulating coating peeled off.

101 is a stand. (Part 2) As schematically shown in FIG. 3, the rotating roller 210.2
20 and the endless belts 230, 240 are separated and mounted on a stand 1010.
The former drive shaft 2100.2
200 and the latter drive shafts 2300 and 2400 are different axes.

Further, the lower part of the roller has rubber skin layers 211, 21.
2 is formed.

(Part 3) A method in which the configuration described in (Part 2) is adopted, and the number of revolutions of the endless belt is slightly higher than that of the rollers.

According to this method, the peeling effect is better than when both are at the same rotation speed.

(Part 4) In the structure of (Part 2) above, the rubber skin layer at the lower part of one rotating roller is omitted and the spiral groove is extended.

With this configuration, the downward movement of the core wire becomes smoother than in the cases (2) and (3) above.

- [Modified Example] As a modified example of the present invention, there is a configuration in which a pair of rotating rubber rollers are used instead of the endless belt in the configuration (Part 2).

〔Effect of the invention〕

The effects of the present invention are listed below.

(1) By adopting an endless belt, the effective gripping length for the insulating coating that has been scratched at the end of the core wire is sufficient, so the peeling effect is perfect, and the end of the core conductor is shaped like a tube. There is no risk of any insulation coating remaining.

(2) Due to the effect of the protruding piece on the top of the rotating roller, the core wires can be reliably inserted one by one between the rollers.

(3) Since it can be peeled off automatically and continuously, it is possible to save a lot of manpower that was previously required.

[Brief explanation of drawings]

FIG. 1 and FIG. 2 are explanatory diagrams showing one embodiment of the present invention,
FIG. 3 is an explanatory diagram schematically showing another embodiment. 2: Core wire, 21, 22: Rotating roller, 51° 52: Spiral groove, 23, 24: Endless rubber belt, 41.42: Scratched guide, 4: Insulating coating, 5: Conductor, 31.32:
Thin plate.

Claims (1)

[Claims] A step of sequentially feeding the ends of the core wires supplied 11 at a time, a step of making a flaw in the end of the core wire, and a step of coating the ends of the core wires from the flaws to the end of the wire with a pair of endless wires. A method for stripping a core wire, comprising a step of pinching and stripping with a belt. 2. A pair of rollers for sequentially feeding the core wire in a predetermined direction, a guide for making a flaw in a predetermined position of the coating at the end of the core wire, and a guide for making a flaw in the coating at the end of the core wire from the scratch to the end. A core wire coating stripping device comprising a pair of endless belts for stripping. 3. The device according to item 2 above, wherein the drive shafts of the pair of rollers and the pair of endless belts are different axes. 4. The device according to item 2 above, wherein the pair of rollers includes a protruding piece for guiding the core at the top.