JPH0678428A - Method of polishing surface of penciling part of power cable - Google Patents

Abstract

PURPOSE:To provide the method of polishing the surface of penciling part of a power cable which can quickly and easily removing the foreign matters at the penciling part. CONSTITUTION:This is a method of forming a penciling part 1B by penciling the insulator 1A made around a conductor 1C so as to connect the conductor 1C of a power cable 1, and then, removing the foreign matter adhering to the penciling part 1B while sucking 3 as well as blowing 4 pressure fluid such as air, etc., to the periphery of this penciling part 1B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface finishing method for a pencil ring portion of a power cable.

[0002]

2. Description of the Related Art Pencilling is carried out when connecting a power cable, but the surface of the penciled penciling portion is sanded or the like, resulting in the generation of fine chips. After finishing the work such as sanding, I wiped the surface of the penciling section with a paper by striking a flon.

[0003]

There is a possibility that a fine foreign substance may get into a fine wound or the like of the insulator by simply wiping it with a freon on the pencil ring. If a tape-wound joint is applied without removing foreign matter, it may cause serious defects as a power cable, and it is also a problem in terms of durability.

Therefore, an object of the present invention is to provide a method for finishing the surface of a pencil ring portion of a power cable, which can remove foreign matter in the pencil ring portion quickly and easily.

[0005]

In order to achieve the above-mentioned object, the present invention forms a pencil ring portion by penciling an insulator formed on the outer periphery of a conductor for connecting a conductor of a power cable. Foreign matter adhering to the pencil ring portion is removed while spraying a pressure fluid such as air around the pencil ring portion while sucking the fluid.

[0006]

The foreign matter on the surface is removed by knocking out the foreign matter that has entered the wound by sucking the foreign matter that has entered the wound and the like by spraying the pressure fluid of the pencilling portion after the work such as sanding.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. In the embodiment shown in FIG. 1, the insulator 1A of the power cable 1 is penciled to make a penciling portion 1B.
Is formed, and the penciling portion 1B is inserted into the blowing suction device 2. Reference numeral 1C indicates a conductor. The spray suction device 2 is connected to the suction source 3 and the pressure fluid supply source 4. While moving the spray suction device 2 provided so as to cover the pencil ring portion 1B in the direction of the arrow, the pressure fluid supply source 4 is provided around the pencil ring portion 1B.
While the pressure fluid such as air is blown from the suction source 3, the suction source 3 sucks the foreign matter struck by the pressure fluid. The suction device 2 has a plurality of nozzles 6 and slits 7 formed between the nozzles 6 on the inner peripheral surface of the ring body 5 as shown in FIG. By operating the suction source 3, the air and foreign matter around the pencil ring 1B are sucked from the slit 7. Further, by operating the pressure supply source 4, a pressure fluid such as air is sprayed from the nozzle 6 around the pencil ring portion 1B.

It is desirable that the surface of the nozzle 6 be covered with rubber so that the tip of the nozzle 6 does not hit the surface of the pencil ring portion 1B and damage the pencil ring portion 1B.

In the above-described embodiment, the suction and the spraying are performed by one device, but a separate device is used to suck the pressurized fluid such as air around the pencil ring portion 1B. You can also

[0010]

As described above, according to the present invention, by blowing a pressure fluid such as air around the pencil ring portion, the foreign matter is knocked out, and the knocked foreign matter is sucked and the surface of the pencil ring portion is sucked. Foreign matter is quickly and easily removed. In addition, it is highly safe because it does not use solvents such as CFCs. Further, since the conductor of the power cable can be connected without foreign matter remaining, reliability is also improved.

[Brief description of drawings]

FIG. 1 is a front view showing a preferred embodiment of the present invention.

FIG. 2 is a perspective view showing an example of a spray suction device.

[Explanation of symbols]

 1 Power cable 1A Insulator 1B Pencil ring 1C Conductor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Watanabe 1-5-1, Kiba, Koto-ku, Tokyo Inside Fujikura Electric Wire Co., Ltd.

Claims (1)

[Claims] Claim: What is claimed is: 1. An insulator formed on the outer circumference of a conductor for connecting a conductor of a power cable is penciled to form a pencil ring portion, and a pressure fluid such as air is blown around the periphery of the pencil ring portion for suction A method for finishing the surface of the pencil portion of a power cable is characterized by removing foreign matter adhering to the pencil portion.