JPH087771Y2 - Wire insulated conductor film removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a film removing device for a wire insulated conductor, which is used for removing an insulating film of a wire of a wire insulated conductor. .

(Prior Art) It is necessary to remove the insulating coating of each wire constituting the conductor when terminating or connecting the wire insulated conductor.

Usually, the film removal is performed by the sand plast method, and various types of removing devices are used.

(Problems to be solved by the invention) However, the conventional film removing device is relatively large,
For example, it was inconvenient to carry in and out of the manhole due to the removal work in the cave. In addition, in order to remove the coating of the insulating strands, the conductor wires of the conductor ends are spread apart and spread out in a conical shape, so it is necessary to make the work inlet of the remover a special structure to facilitate the insertion of the conductor ends. However, there is a drawback that the structure is complicated.

The present invention was made in view of the above circumstances, and an object thereof is to provide a film removing device for an insulated wire conductor, which can be easily carried in and out of a manhole from a manhole and which has a simple work inlet structure. I am trying.

[Means for Solving the Problem] (Means for Solving the Problem) The film removing device for a wire insulated conductor of the present invention includes a shotgun for sandblasting, and a work insertion port for inserting a wire insulated conductor into a side wall. A semicircular notch formed in the upper end opening edge of the housing, and a semicircular notch formed in a lower edge of a lid attached to the upper end opening of the housing. It is characterized in that it is configured by.

(Operation) In the film removing device for the insulated wire conductor of the present invention having the above-described structure, after the work is engaged with the semicircular notch provided in the opening edge of the upper end of the device housing, the semicircular notch on the lid side is engaged. The work is engaged and the lid is placed on the housing so that the work is mounted on the device of the present invention. Therefore, it is possible to easily attach the work even when the wires are greatly expanded.

(Embodiment) FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a side view thereof, FIG. 3 is a front view of a main part of the embodiment with a lid removed, and FIG. FIG. 5 is a plan view of the embodiment, and FIG. 5 is a front view showing a state where the film removal is being carried out by the embodiment.

In FIGS. 1, 2, and 3, an apparatus housing 2 supported by a pedestal 1 so as to be vertically movable is an octagonal tube shape, and a lower part thereof is an octagonal pyramid shape that is reduced downward. There is. A detachable lid 3 is attached to the upper end thereof.

The lower surface of the lid 3 is provided with hanging walls 3a and 3b which engage with the notches 2a and 2b provided in the upper part of the entire side wall of the housing 2 and the upper part of the adjacent side wall part. Semi-circular 4a and 4b facing each other are provided at the lower edge and the edge portion of the side wall notch 2a of the housing 2 with which the lower edge is engaged.

Thus, the lid 3 cuts the hanging walls 3a and 3b into the notches 2a and 2b of the housing.
The semi-circular cutouts 4a and 4b form a circular work insertion opening 4 when mounted on the housing 2 by being engaged with.

It should be noted that viewing windows 5 and 6 are provided at appropriate positions on the side wall of the housing 2 and at the center of the lid 3, respectively, and a plurality of hand insertion openings 7 that are opened as needed are provided at appropriate positions on the side wall of the housing 2. Has been. Although not shown, a shotgun for sandblasting is provided in the upper part inside the housing 2. The jetting direction is directed to the sandblasting portion of the wire insulated conductor (hereinafter simply referred to as a work) 8 inserted from the work insertion port 4.

In the figure, 9 indicates a discharge cylinder provided at the bottom end of the housing 2 for collecting the abrasive for sandblasting. Although not shown, a side wall near the upper end of the housing 2 is provided with a hose for supplying pressurized air to a shotgun provided in the housing 2 and a joint for connecting a hose for supplying an abrasive, respectively. Has been.

FIG. 5 shows a mode in which the insulation film removal of the wire is carried out by the film removal apparatus for the wire insulated conductor of the present invention having the above-mentioned structure.
That is, in order to remove the insulating film, the above-described device 10 for removing the film of the insulated conductor of the present invention, the cyclone separator 11, the dust collector 12, and the pressurized air source (hereinafter simply referred to as a compressor) 13 And are used in combination.

In the cyclone separator 11, for example, an abrasive such as alumina oxide powder is accommodated, an inlet pipe 11a terminating in the center of the separator casing is provided near the upper end of the side wall, and the uppermost end opposite to the side wall is provided. Is provided with a discharge pipe 11b terminating slightly toward the center from the inner surface of the side wall.

The introduction pipe 11a of the cyclone separator 11 is connected by a hose 20 to the discharge tube 9 at the lower end of the housing 2 of the wire insulated conductor film removing device 10 of the present invention, and the discharge pipe 11b is connected by a hose 21 to the dust collector 12. Connected to the entrance. Further, the bottom end of the cyclone separator 11 is connected by a hose 22 to the abrasive supply port of a shotgun (not shown), and the compressor 13 is connected by a hose 23 to the air supply port of the shotgun.

The sheath of the end of the wire insulated conductor 8 which is the work is peeled off, and the exposed wire 8a is spread and twisted so that the wire group becomes a conical shape. The vicinity of the sheath peeling end of the work 8 thus constructed is covered by the lid 3 as shown in FIG.
It engages with the semicircular notch 4b of the housing 2 which has been removed. Then, the lid 3 is attached to the housing 2 by engaging the semicircular notch 4a with the sheath. The work 8 is attached to the housing 2 by engaging the work 8 with the notch 4a of the housing 2 and covering the lid 3 with the notch 4a, and the work insertion opening 4 is completed in a circular shape. Since it is not inserted from above, it is easy to attach it, no matter how the exposed wire 8a is expanded.

As described above, the work 8 is set in the film removing device 10 for the insulated wire conductor of the present invention, and compressed air is supplied from the compressor 13 to the shotgun. Then, the inside of the hose 22 becomes a negative pressure due to the ejection of compressed air from the shotgun. The abrasive remaining in the bottom of the cyclone separator 11 is sucked by the negative pressure, supplied to the shotgun through the hose 22, and jetted from its nozzle. Then, the abrasive collides with the exposed wire 8a of the work 8 to remove the insulating film on the surface thereof.

The abrasives involved in the film removal and the removed film fragments or powders (hereinafter referred to as film scraps) ride on the air flow of the compressed air ejected from the shotgun, and the casing 21
Sprayed on the bottom of the. The film debris is guided to the introduction pipe 11a of the cyclone separator 11 via the hose 20 together with the air flow. The air flow containing the film debris is ejected from the end of the introduction pipe 11a at the center of the cyclone separator 11 toward the inner peripheral surface of the casing of the cyclone separator 11 substantially in the radial direction.

A vortex-like flow is formed in the cyclone separator 11 by the jetting, whereby heavy abrasives are collected in the vicinity of the inner peripheral surface in the cyclone separator 11, and light coating debris is collected inward in the radial direction. And the two are separated. Then, the film scraps are sent to the dust collector 12 by being carried by the air flow and stored therein, and the polishing agent descends along the inner peripheral surface and accumulates and accumulates at the bottom.

After the removal of the film is completed in this way, the supply of the compressed air from the compressor 13 is stopped, the lid 3 is removed, and the work 8 is removed from the housing 2.

The wire-insulated conductor film removing device of the present invention having the above-described configuration can be constructed in a small size, a light weight, and a low cost.

Further, the work 8 is mounted on the housing 2 by engaging the work 8 with the notch 4a of the housing 2 and covering the lid 3 with the notch 4a, which is formed in a circular shape as in the conventional case. Since it is not installed by inserting from the work insertion port,
No matter how the exposed wire 8a is expanded, it is easy to mount.

FIG. 6 is a schematic front view of an example of the shotgun supporting means in the above embodiment of the present invention. In this figure, a slide rail 31 perpendicular to the side wall of the side wall provided with the work insertion port 4 is provided in the housing 2 immediately below the insertion port, and the slide rail 31 is slidable on this side. The sliding base 32 is mounted.

The sliding base 32 is provided with a rotary disc 33 having a center of rotation substantially facing the center of the work insertion port 4, and a shotgun 34 is attached to an eccentric position of the rotary disc. The sliding base 32 and the rotary disc 33 are designed to be driven by a motor 35, but FIG. 6 is a schematic view, and the drive mechanism and supporting mechanism for the rotary disc 33 are omitted. ing. Further, reference numeral 36 in the drawing denotes a controller for controlling the motor 35 to cause the sliding mount 32 and the rotary disc 33 to perform a required motion.

The shot gun 34 illustrated above is caused to reciprocate in the axial direction of the work 8 by the operation of the controller 36, and to reciprocate on the circumference of the same. Therefore, the exposed and expanded conical insulation wire 8a is entirely sandblasted.

The present invention is not limited to the above embodiment. For example, if the work is of a small size, the shotgun 34 may not be capable of reciprocating movement in the axial direction or reciprocating movement on the circumference.

[Effects of the Invention] As is clear from the above, the film removing apparatus for the insulated wire conductor of the present invention can be configured to be relatively small and lightweight, so that it can be easily carried in and out of the manhole.

Further, in the apparatus for removing a film of a wire insulated conductor of the present invention, semicircular cutouts are provided at the upper edge of the apparatus housing and the lower edge of the lid engaged with the upper opening, and the work is placed in the notch on the housing side. The work is attached to the device of the present invention by engaging them and then covering the case with the lid. Therefore, it is possible to easily attach the work even when the wires are greatly expanded.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a side view thereof, FIG. 3 is a front view of a main part of the embodiment with a lid removed, and FIG. 4 is a plan view of the embodiment. FIG. 5 and FIG. 5 are front views showing a state in which the film removal is being carried out according to the embodiment,
The drawing is a schematic front view of an example of the shotgun supporting means in the embodiment of the present invention. 1 ... Stand, 2 ... Housing, 3 ... Lid, 4 ... Work insertion port, 4a, 4b ... Semi-circular notch, 8 ... Work, 8a ... Work insertion port, 11 ... Cyclone separator , 12 …… dust collector, 13
...... Compressor, 34 …… Shotgun

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-56-101321 (JP, A) JP-A-56-107718 (JP, A) JP-A-57-85512 (JP, A) JP-A-61- 1214 (JP, A) JP 62-7319 (JP, A) Actually developed 58-176518 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A housing including a shotgun for sandblasting and having a work insertion opening on a side wall for inserting a wire insulated conductor, wherein the work insertion opening is provided at an opening edge of an upper end of the housing. A film removing device for a wire insulated conductor, comprising: a semicircular cutout formed and a semicircular cutout formed in a lower edge of a lid that is attached to and detached from the upper end opening of the housing.