CN211294752U

CN211294752U - Mould penetrating structure of cable multi-core flexible conductor

Info

Publication number: CN211294752U
Application number: CN201921922739.2U
Authority: CN
Inventors: 许莉莉; 刘冠; 温志力
Original assignee: GUANGDONG YUANGUANG CABLE INDUSTRY CO LTD
Current assignee: GUANGDONG YUANGUANG CABLE INDUSTRY CO LTD
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-08-18
Anticipated expiration: 2029-11-08

Abstract

The utility model provides a mould structure of wearing of cable multicore soft conductor, includes the conductor that forms by many copper wires hinges, and the conductor has the head end of wearing out from the mold core earlier, the conductor head end is cut short formation echelonment structure to different copper wires in different length position respectively along axial direction for the single copper wire staggered arrangement of conductor head end, and form pointed cone head end, the head end of conductor is cut short at two different positions at least, forms the ladder face of two at least different positions. The utility model discloses be convenient for wear out from the mold core, improve die-punching efficiency, save the loss.

Description

Mould penetrating structure of cable multi-core flexible conductor

Technical Field

The utility model belongs to the technical field of the cable technique and specifically relates to a mould structure of wearing of flexible conductor of cable multicore.

Background

The wire and cable flexible conductor die is an essential process in the process of extruding a polymer insulating layer by a wire and cable, and the efficiency and the quality of the die directly influence the production efficiency and the product quality. In the production process, the most suitable mould is selected according to the process requirements for production, particularly for the mould selection of the small-specification soft conductor, the mould with the smaller mould core hole is selected, and the eccentricity of the insulating layer and the stability of the insulating thickness are favorably controlled. However, the die core hole is selected, so that the conductor cannot easily pass through the die, the die-penetrating time is consumed, and the working efficiency is influenced. The mould selection is too big, and the sinle silk swings, beats in the mould core, causes the off-centre easily, extrudes the easy feed back of in-process, influences the wire and cable outward appearance then, leads to the broken string even.

The multi-core flexible cable conductor is composed of a plurality of small-diameter monofilaments, the monofilaments at the end are easy to scatter, the conductor is particularly flexible and easy to bend, the actual outer diameter of the loose conductor is larger than that of a die hole, the loose conductor is not easy to pass through a die and often cannot pass through the die, or the conductor at the head end passes through the die hole, but one or two monofilaments are clamped in the inner die hole to form accumulation, so that the die-passing failure is caused. According to observation, the single-die-punching process wastes 3-5m of cable conductors, consumes longer time and reduces the production efficiency.

Disclosure of Invention

The invention aims to provide a die penetrating structure of a cable multi-core flexible conductor.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a wear mould structure of cable multicore soft conductor, includes the conductor that is formed by the many copper wires hinge, and the conductor has the head end of following the mold core earlier and wearing out, the conductor head end is cut short the formation echelonment structure to different copper wires at different length positions respectively along the axial direction for the single copper wire dislocation array of conductor head end, just form sharp toper head end.

The head end of the conductor is cut short at least two different positions to form at least two stepped surfaces at different positions.

At least one copper wire is arranged on the same step surface.

And a glue adhesion layer for adhering the copper wires tightly is arranged between the copper wires at the head end of the conductor.

When the conductor head end is provided with at least three different positions to form a step surface, the distances between two adjacent step surfaces are the same or different.

The conductor is a soft conductor which is concentrically twisted, bunched and twisted or complex twisted.

The utility model discloses an establish the conductor head end into the pointed cone shape to be favorable to wearing out from the mold core, improve and wear mould efficiency, save the loss, reduction in production cost.

Drawings

Fig. 1 is the sectional structure schematic diagram of the utility model assembled with the mold core.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

As shown in the accompanying drawing 1, the utility model discloses a wear mode structure of cable multicore soft conductor, include the conductor 3 that is formed by many thin copper wire hinges, conductor 3 has the head end of following earlier and wearing out from mold core 1, and wherein the mold core has die orifice 2, the 3 head ends of conductor are cut short formation echelonment structure to different copper wires respectively at different length positions along axial direction for the single copper wire staggered arrangement of conductor head end, and form sharp toper head end. Namely, different copper wires are cut short at different length positions of the conductor head end, so that a step surface 4 is formed on the section with the same length, and the head end is ensured to be of a structure from large to small.

The head end of the conductor is cut short at least two different positions to form at least two stepped surfaces at different positions. When the copper wires are cut short at the same position, only one copper wire or a plurality of copper wires can be cut short.

A glue adhesion layer for adhering the copper wires tightly is arranged between the copper wires at the head end of the conductor, and the single copper wire is adhered together by using the glue adhesion layer, so that the tightness is ensured. During specific operation, the glue is coated and adhered along the periphery of the conductor wire core gap, so that the conductor wire core gap is firm and is in a roughly uniform conical shape. Gluing also further forms the tip of the conductor into a cone of appropriate length and hardness.

As in the present embodiment, the six-step surfaces 4 are formed by shearing the respective copper wires at the leading ends of the conductors 3, so that a tapered shape is formed as a whole. When the conductor penetrates out of the mold core, the minimum position of the head end firstly enters the mold opening of the mold core and then sequentially penetrates out, the conductor penetrates out of the small end and gradually becomes large, and the conductor can quickly and smoothly penetrate through the extrusion mold. The die is particularly suitable for the die penetration of the soft conductor composed of a plurality of thin copper wires through a small die hole. The operation is more convenient, the die penetrating efficiency is improved, and the loss is saved.

Although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements, and the like can be made in the technical solutions of the foregoing embodiments or in some of the technical features of the foregoing embodiments, but those modifications, equivalents, improvements, and the like are all within the spirit and principle of the present invention.

Claims

1. The utility model provides a wear mould structure of cable multicore soft conductor, includes the conductor that is formed by the many copper wires hinge, and the conductor has the head end of following the mold core earlier and wearing out, its characterized in that, the conductor head end is cut short formation echelonment structure to different copper wires at different length positions respectively along the axial direction for the single copper wire staggered arrangement of conductor head end, and form sharp toper head end.

2. The through-mold structure of a cable multi-core flexible conductor as claimed in claim 1, wherein the head end of the conductor is cut short at least two different positions to form at least two different stepped surfaces.

3. The through-die structure of the cable multi-core flexible conductor as claimed in claim 2, wherein at least one copper wire is arranged on the same step surface.

4. The through-mold structure of the cable multi-core soft conductor as claimed in claim 3, wherein a glue coating layer for adhering the copper wires is arranged between the copper wires at the conductor head end.

5. The through-mold structure of the cable multi-core flexible conductor according to claim 4, wherein the conductor head end has at least three different positions forming step surfaces, and the distances between two adjacent step surfaces are the same or different.

6. The through-mold structure of the cable multi-core flexible conductor according to claim 5, wherein the conductor is a concentrically twisted, bundle twisted or complex twisted flexible conductor.