CN217196837U

CN217196837U - Cable sheath extruding internal mold

Info

Publication number: CN217196837U
Application number: CN202123401126.4U
Authority: CN
Inventors: 王超; 石海伍
Original assignee: Changchun Jetty Automotive Parts Co Ltd
Current assignee: Changchun Jetty Automotive Parts Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-16
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a cable sheath extrusion internal mold, which comprises an internal mold shell, wherein the internal mold shell is provided with a first cavity with openings at two ends, and the internal mold shell is provided with a fixed end and a first outlet end; the inner die inlay is sleeved in the inner die shell and provided with a second cavity with openings at two ends, and the inner die inlay is provided with an installation end and a second outlet end; the installation end with the connection can be dismantled to the stiff end, first exit end with the second exit end sets up with one heart. According to this disclosed centre form is extruded to cable sheath, can avoid the wire to pass when the centre form, by the first exit end fish tail of centre form shell, prevent that the wire from being impaled the insulating layer by the barb that the fish tail produced, perhaps insulating layer thickness reduces.

Description

Cable sheath extruding internal mold

Technical Field

The utility model relates to a cable technical field, more specifically relates to an centre form is extruded to cable sheath.

Background

With the light weight of the automobile and the compression of the wiring space of the wiring harness, the wiring harness system puts higher requirements on the appearance of the automobile cable. Specifically, the automobile electric wire needs to be flattened, so that the automobile cable can be conveniently wired on a metal plate in an automobile, the use of an auxiliary binding material is reduced, the weight of a wire harness is reduced, and the wiring space is fully utilized. However, when the conventional automobile cable extrusion die is used, the conductor material of the flat wire is easily scratched, and a scratch is formed on the surface of the conductor, so that the appearance is poor, and the insulation thickness is reduced or even the insulation is pierced when the scratch is serious, so that the cable sheath extrusion inner die is needed to solve the problem at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cable sheath extrudes new technical scheme of centre form.

According to the utility model, a cable sheath extrusion internal mold is provided, which comprises,

the inner mold shell is provided with a first cavity with two open ends and is provided with a fixed end and a first outlet end;

the inner mold inlay is sleeved in the inner mold shell and provided with a second cavity with openings at two ends, and the inner mold inlay is provided with a mounting end and a second outlet end;

the installation end with the stiff end can be dismantled and be connected, first exit end with the second exit end sets up with one heart.

Optionally, at least a portion of the first cavity on the side of the first outlet end is cone-shaped, and at least a portion of the second cavity on the side of the second outlet end is cone-shaped.

Optionally, at least a portion of the outer wall of the inner mold inlay conforms to at least a portion of the inner wall of the first cavity.

Optionally, the second outlet end does not protrude from the first outlet end.

Optionally, the installation end sets up jack catch or draw-in groove, the stiff end sets up corresponding draw-in groove or jack catch, the jack catch with the connection can be dismantled to the draw-in groove.

Optionally, the second outlet end has an internal dimension smaller than the internal dimension of the first outlet end.

Optionally, the first outlet end and the second outlet end have the same internal shape.

Optionally, the internal cross-sectional shape of the first outlet end and the second outlet end is circular or elliptical or polygonal or rectangular or square.

Optionally, the inner mold shell is made of metal, and the inner mold inlay is made of plastic or wood.

The cable sheath extrusion inner die has the following effects;

through set up the centre form inlay in the centre form shell that metal material made, can avoid the wire to pass the centre form when, by the first exit end fish tail of centre form shell, prevent that the wire from being impaled the insulating layer by the barb that the fish tail produced, perhaps insulating layer thickness reduces.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic cross-sectional view of an extrusion inner mold for a cable sheath according to the present invention;

fig. 2 and fig. 3 are perspective views of the cable sheath extrusion inner mold of the present invention.

The figures are labeled as follows:

1-inner membrane shell, 11-first cavity; 12-a fixed end; 13-a first outlet end; 2-an inner membrane inlay; 21-a second cavity; 22-a mounting end; 23-a second outlet end.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

A cable jacket extrusion inner mold according to the present disclosure, as shown in fig. 1 to 3, includes,

the device comprises an inner mold shell 1, wherein the inner mold shell 1 is provided with a first cavity 11 with two open ends, and the inner mold shell 1 is provided with a fixed end 12 and a first outlet end 13;

the inner die inlay 2 is sleeved in the inner die shell 1, the inner die inlay 2 is provided with a second cavity 21 with openings at two ends, and the inner die inlay 2 is provided with a mounting end 22 and a second outlet end 23;

the mounting end 22 is detachably connected to the fixing end 12, and the first outlet end 13 and the second outlet end 23 are concentrically arranged.

During specific implementation, set up the centre form inlay through the centre form shell, can avoid when the wire passes the centre form, by the first exit end 13 export fish tail of centre form shell 1, prevent that the wire from being impaled the insulating layer by the barb that the fish tail produced, perhaps insulating layer thickness reduces.

In an embodiment of the cable sheath extrusion inner mold according to the present disclosure, at least a portion of the first cavity 11 on the side of the first outlet end 13 is cone-shaped, and at least a portion of the second cavity 21 on the side of the second outlet end 23 is cone-shaped.

At least part through with first cavity 11 and second cavity 21 sets up to the toper shape, can set one end opening to the minor bore, makes things convenient for the wire to pass, and other end opening sets to the major bore, and convenient installation is convenient for install on the aircraft nose of cable sheath extruder, convenient and practical.

In an embodiment of the cable sheath extrusion inner mold according to the present disclosure, at least a part of an outer wall of the inner mold inlay 2 is attached to at least a part of an inner wall of the first cavity 11. The first cavity 11 and the second cavity 21 are arranged concentrically, so that the first outlet end 13 and the second outlet end 23 are arranged concentrically, and therefore when a lead passes through the second outlet end 23, the lead is prevented from touching the first outlet end 13 or the second outlet end 23, and the lead is prevented from being scratched.

In one embodiment of a cable jacket extrusion inner die according to the present disclosure, the second outlet end 23 does not protrude from the first outlet end 13. The second outlet end 23 is covered by the first cavity 11, so that the inner membrane inlay can be protected from being damaged by pressure.

According to an embodiment of the cable sheath extrusion inner mold of the present disclosure, the mounting end 22 is provided with a clamping jaw or a clamping groove, the fixing end 12 is provided with a corresponding clamping groove or clamping jaw, and the clamping jaw is detachably connected with the clamping groove. The damaged inner membrane shell 1 or inner membrane inlay 2 can be replaced, and waste is avoided.

In one embodiment of a cable jacket extrusion inner mold according to the present disclosure, the inner dimension of the second outlet end 23 is smaller than the inner dimension of the first outlet end 11. Because the first outlet end 11 and the second outlet end 23 are concentrically arranged, when the inner size of the second outlet end 23 is smaller than that of the first outlet end 11, the wires can be prevented from contacting the inner wall of the first outlet end when passing through the second outlet end 23, and the wires can be prevented from being scratched by the first outlet end.

In one embodiment of a cable jacket extrusion inner mold according to the present disclosure, the inner shapes of the first outlet end 13 and the second outlet end 23 are the same. Facilitating a concentric arrangement of the first outlet end 13 and said second outlet end 23.

Further, the internal cross-sectional shape of the first outlet end 13 and the second outlet end 23 is circular or oval or polygonal or rectangular or square. The internal shapes of the first outlet end 13 and the second outlet end 23 are not particularly limited, and are determined according to actual production.

In an embodiment of the present disclosure, the inner mold housing 1 is made of metal, the metal includes hard metal or hard alloy material, and the inner mold inlay 2 is made of plastic or wood. The inner membrane shell 1 is made of metal and can resist high pressure; the inner mold inlay 2 is made of plastic or wood to prevent the surface of the lead from being scratched.

Further, the temperature of the inner mold inlay 2 which can resist temperature and does not deform is more than or equal to 180 ℃. In the actual production, the sheath raw materials extrude the temperature 170 ℃ to 180 ℃ in the runner between the centre form and the cable sheath extrusion external mold at the cable sheath, the temperature that the indeformable is extruded to the temperature resistant of inner membrance inlay 2 is for being greater than and equal to 180 ℃, the inner membrance inlay is not melted as the sizing material of sheath raw materials can, the utility model discloses well inner membrance inlay 2 material sets for plastics, and the temperature that its indeformable is resistant is set for between 350 ℃ to 400 ℃.

Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. An extrusion internal mold for a cable sheath is characterized by comprising,

the inner die inlay is sleeved in the inner die shell and provided with a second cavity with openings at two ends, and the inner die inlay is provided with an installation end and a second outlet end;

the installation end with the connection can be dismantled to the stiff end, first exit end with the second exit end sets up with one heart.

2. The cable jacket extrusion inner mold of claim 1, wherein at least a portion of the first cavity on the side of the first outlet end is cone-shaped, and at least a portion of the second cavity on the side of the second outlet end is cone-shaped.

3. The cable jacket extrusion inner mold of claim 1, wherein at least a portion of an outer wall of the inner mold inlay conforms to at least a portion of an inner wall of the first cavity.

4. The cable jacket extrusion inner mold of claim 1, wherein the second outlet end does not protrude from the first outlet end.

5. The cable sheath extrusion inner mold according to claim 1, wherein the mounting end is provided with a clamping jaw or a clamping groove, the fixing end is provided with a corresponding clamping groove or clamping jaw, and the clamping jaw is detachably connected with the clamping groove.

6. The cable jacket extrusion inner mold of claim 1, wherein an inner dimension of the second outlet end is smaller than an inner dimension of the first outlet end.

7. The cable jacket extrusion inner mold of claim 1, wherein the inner shape of the first outlet end and the second outlet end is the same.

8. The cable jacket extrusion inner mold of claim 7, wherein the inner cross-sectional shape of the first outlet end and the second outlet end is circular or elliptical or polygonal.

9. The cable sheath extrusion inner mold of claim 1, wherein the inner mold shell is made of metal, and the inner mold inlay is made of plastic or wood.

10. The cable sheath extrusion inner mold of claim 9, wherein the temperature resistant non-deforming temperature of the inner mold inlay is greater than or equal to 180 ℃.