CN215550785U

CN215550785U - Novel fan-shaped extruded tube type die

Info

Publication number: CN215550785U
Application number: CN202122189580.1U
Authority: CN
Inventors: 魏厚川; 王文斗; 陈祥兵; 王杰; 张秋玉
Original assignee: Nanjing Quanxin Cable Technology Co Ltd
Current assignee: Nanjing Quanxin Cable Technology Co Ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-01-18
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a novel fan-shaped extruded tube type die, which relates to the technical field of wire and cable processing equipment and comprises a die sleeve and a die core, wherein a first through hole is formed in the die sleeve, the die core is arranged in the first through hole and comprises a conical body and a fan-shaped body, one end of the conical body is fixedly connected with the fan-shaped body, a second through hole is formed in the conical body, and a third through hole communicated with the second through hole is formed in the fan-shaped body; the mold core has thin wall thickness and the shape is consistent with that of the fan-shaped conductor, so that the excessive stretching of the insulating material is reduced, and the problem of large thermal shrinkage data of plastic insulation is solved.

Description

Novel fan-shaped extruded tube type die

Technical Field

The utility model relates to the technical field of wire and cable processing equipment, in particular to a novel fan-shaped extruded tube type die.

Background

The sector force cable insulation wire core is generally extruded by a circular extrusion tube type die, and when the sector force cable insulation wire core is extruded on a sector twisted conductor, the sector conductor is not consistent with the extrusion molding circular insulation tube in shape, so that the insulation concentricity index is smaller; meanwhile, the insulating material is not uniformly stretched, so that the thermal shrinkage index of the insulating material is larger; and in order to meet the requirement of the thinnest point of the plastic, the whole thickness of the insulation can be increased only, and the material waste is caused.

Disclosure of Invention

The utility model aims to provide a novel fan-shaped extruding pipe type die to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a novel crowded tubular mould of fan-shaped, includes die sleeve and mold core, set up through-hole one in the die sleeve, be provided with the mold core in the through-hole one, the mold core includes cone and quadrant, and the one end fixedly connected with quadrant of cone has seted up through-hole two in the cone, sets up the through-hole three with through-hole two intercommunication in the quadrant.

As a further scheme of the utility model: the head of the die sleeve is provided with a step.

As a further scheme of the utility model: the first through hole is composed of a cone pipe section and a fan-shaped diameter bearing section of the head.

As a further scheme of the utility model: the through hole III is in a fan-shaped tubular shape, and the through hole II is composed of two cone-shaped tubular through holes.

As a further scheme of the utility model: the inner surfaces of the second through hole and the third through hole are smooth.

As a further scheme of the utility model: the thickness of the sector is 1.0-1.2 mm.

As a further scheme of the utility model: the length of the fan-shaped diameter bearing section of the first through hole is reduced by 2.0-4.0 mm compared with the length of the fan-shaped body.

As a further scheme of the utility model: the shape of a fan-shaped diameter bearing section of the through hole of the die sleeve is consistent with that of the fan-shaped body.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model has reasonable structure design of the mold core and the mold sleeve, the shape of the mold is consistent with that of the conductor of the sector-shaped stranded body, the thicknesses of all parts of the plastic are consistent in the process of coating the conductor by the sector-shaped pipe extruded by the plastic extruding machine, the problem of inconsistent insulation deformation in the process of extruding the circular extruded pipe mold is solved, the concentricity of the whole insulation is improved, the structural size of the mold is basically consistent with that of the conductor, and the excessive stretching generated in the process of changing the molten plastic from the circular pipe into the sector-shaped pipe is reduced, so that the produced product has better insulation heat shrinkage performance, the structural shape of the mold core is consistent with that of the inner through hole of the mold sleeve, the mold core and the inner through hole of the mold sleeve are installed in the same direction and in the same proportion, the adjustment time of the plastic extruding machine is saved, the discharge quantity in the preparation stage is reduced, the production efficiency is improved, the quality reliability of the cable processed and produced by the utility model is higher, the insulation layer is coated uniformly, the insulation performance is excellent, the qualification rate of the product is greatly improved.

Drawings

FIG. 1 is a cross-sectional view of a mold core of the present invention;

FIG. 2 is a cross-sectional view of a die sleeve according to the present invention;

FIG. 3 is a cross-sectional view of the mold core and mold sleeve of the present invention in mating relationship;

FIG. 4 is a diagram showing the effect of the installation of the mold core and the mold sleeve in the present invention.

In the figure: 1. die sleeve; 2. a first through hole; 3. a mold core; 31. a conical body; 32. a sector; 4. a second through hole; 5. a third through hole; 6. and (4) a step.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention, and in the present invention, unless otherwise explicitly specified or limited, the terms "disposed", "mounted", "connected", and "fixed" should be broadly construed, for example, as being fixedly connected, detachably connected, or integrated; the two components can be mechanically connected, directly connected or indirectly connected through an intermediate medium, and can be communicated with each other inside the two components or the interaction relationship of the two components, and the specific meaning of the terms in the utility model can be understood according to specific situations by a person skilled in the art.

Referring to fig. 1 to 4, in an embodiment of the present invention, a novel fan-shaped extruding mold includes a mold sleeve 1 and a mold core 3.

In a specific implementation process, as shown in fig. 1 and 2, a first through hole 2 is formed in the die sleeve 1, a die core 3 is arranged in the first through hole 2, the die core 3 comprises a conical body 31 and a fan-shaped body 32, one end of the conical body 31 is fixedly connected with the fan-shaped body 32, a second through hole 4 is formed in the conical body 31, and a third through hole 5 communicated with the second through hole 4 is formed in the fan-shaped body 32.

It should be noted that: when in use, the die is arranged in the machine head of the plastic extruding machine, a fan-shaped twisted conductor to be produced and processed is penetrated into the die core 3 and the die sleeve 1 in the machine head, molten plastic is extruded into a cavity between the die core 3 and the die sleeve 1, and the plastic at the opening part of the die sleeve 1 is uniformly coated on the conductor to form an insulating layer along with the traction of a conductor wire core and the flow of the molten plastic, the structure of the die core 3 and the die sleeve 1 is reasonably designed, the shape of the die is consistent with that of the fan-shaped twisted conductor, and the thicknesses of all parts of the plastic are consistent in the process of coating the conductor in the fan-shaped tube shape extruded by the plastic extruding machine, thereby solving the problem of inconsistent insulating deformation in the extruding process of the circular extruding tube type die, improving the concentricity of the whole insulation, ensuring that the structural size of the die is basically consistent with that the structural size of the conductor, reducing the overlarge stretching generated in the process of changing the molten plastic from the circular tube shape into the fan-shaped tube shape, the produced product has better insulating heat shrinkage performance, the structural shape of the mold core 3 is consistent with the shape of the first through hole 2 of the mold sleeve 1, and the mold core is installed in the same proportion and the same direction, so that the adjustment time of a plastic extruding machine is saved, the discharge quantity in the preparation stage is reduced, the production efficiency is improved, the reliability of the processed and produced cable is higher, the insulating layer is uniformly coated, the insulating performance is excellent, and the qualification rate of the product is greatly improved.

Referring to fig. 2, a step 6 is formed at the head of the die sleeve 1, so that the die can be conveniently fixed.

Referring to fig. 2, the through-hole (2) is composed of a cone pipe section and a fan-shaped bearing diameter section of the head.

Referring to fig. 1, the third through hole 5 is in a fan-shaped tubular shape, the second through hole 4 is formed by two cone-shaped tubular through holes, and the fan-shaped conductor can rapidly and smoothly pass through the mold core 3 due to the three-section design.

The inner surfaces of the second through hole 4 and the third through hole 5 are smooth, so that the conductor can pass through the conductor without scratching deformation and other problems.

The thickness of the fan-shaped body 32 is 1.0-1.2 mm, and under the condition that the strength of the die is guaranteed, the distance between an insulating material extruder head and a coated conductor is reduced, and the thermal shrinkage data index is optimized.

The length of the fan-shaped diameter bearing section of the first through hole 2 is reduced by 2.0-4.0 mm compared with the length of the fan-shaped body 32, and sufficient, compact and smooth plastic pressure coating is guaranteed.

Referring to fig. 3, the shape of the fan-shaped diameter bearing section of the first through hole 2 of the die sleeve 1 is consistent with that of the fan-shaped body 32, so that the index requirements of the average insulation thickness, the thinnest point and the concentricity are better met.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a novel crowded tubular mould of fan-shaped which characterized in that includes:

the die sleeve (1) is internally provided with a first through hole (2);

the mold core (3), be provided with mold core (3) in through-hole (2), mold core (3) are including cone (31) and quadrant (32), and the one end fixedly connected with quadrant (32) of cone (31), have seted up through-hole two (4) in cone (31), have seted up through-hole three (5) with through-hole two (4) intercommunication in quadrant (32).

2. The novel fan-shaped extruded tube type die as claimed in claim 1, wherein the head of the die sleeve (1) is provided with a step (6).

3. The novel tube extruding fan die as claimed in claim 1, wherein the first through hole (2) is composed of a cone pipe section and a fan-shaped bearing diameter section of the head.

4. The novel tube extruding fan die as claimed in claim 1, wherein the third through hole (5) is in a fan-shaped tube shape, and the second through hole (4) is composed of two cone-shaped tube-shaped through holes.

5. The novel tube extruding fan die as claimed in claim 1, wherein the inner surfaces of the second through hole (4) and the third through hole (5) are smooth.

6. The novel tube extruding fan die as claimed in claim 1, wherein the thickness of the fan-shaped body (32) is 1.0-1.2 mm.

7. The novel fan-shaped extruded tube type die is characterized in that the length of a fan-shaped bearing section of the first through hole (2) is reduced by 2.0-4.0 mm compared with the length of a fan-shaped body (32).

8. The novel tube extruding fan die as claimed in claim 1, wherein the shape of the first through hole (2) of the die sleeve (1) and the fan-shaped bearing section is consistent with the shape of the fan-shaped body (32).