CN214225512U

CN214225512U - Low-use-cost universal optical cable production mold

Info

Publication number: CN214225512U
Application number: CN202022381188.2U
Authority: CN
Inventors: 沈小平; 阮秋平; 曹志刚; 夏兰兰
Original assignee: Tongding Interconnection Information Co Ltd
Current assignee: Tongding Interconnection Information Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-09-17
Anticipated expiration: 2030-10-23

Abstract

The invention provides a low-use-cost universal optical cable production die, which comprises a die holder and a die core, wherein the die holder is sleeved outside the die core; the mold core comprises a main body part, a forming section is arranged at the front end of the main body part, and a tapered mold core forming surface is machined on the outer wall of one end, close to the forming section, of the main body part; the die holder inner wall is provided with a first closing section, a second closing section and a third closing section in sequence along the axial direction, the inner wall of the third closing section is provided with a die holder forming surface corresponding to the die core forming surface, the distances among the die holder forming surface and the die core forming surface are the same, and an annular forming cavity is formed between the die holder forming surface and the die core forming surface. The invention has simple structure, reasonable design, easy operation and implementation, low use cost and good universality, and can meet the production requirements only by replacing the matched forming sleeve aiming at products with different sheath thicknesses.

Description

Low-use-cost universal optical cable production mold

Technical Field

The invention belongs to the technical field of optical cable production, and particularly relates to a universal optical cable production mold with low use cost.

Background

With the gradual implementation of the strategy of 'broadband China', the FTTH fiber is gradually popularized to home. Along with the improvement of people's standard of living, the promotion of pursuit quality of living more and more becomes important consideration safely, and the majority of traditional optical cable all has metal composition in addition, and when the thunder and lightning, there is the risk of thunderbolt, consequently can promote the demand of all medium optical cable greatly, and all medium optical cable adopts full non-metallic material, can play fine lightning-arrest effect. However, in the production process, in order to form some non-metal strips well, the needle tube is adopted to assist in forming, but the needle tube is longer, and has certain requirements on the inner diameter of the needle tube, so that the shaping effect can be achieved. Once the needle tube is damaged or the length of the needle tube does not meet the use requirement, the needle tube is threaded on line, and the risk of scalding exists. In addition, aiming at products with different sheath thicknesses, the production requirements can be met only by preparing moulds with different specifications, the operation difficulty is high, the use cost is high, and the universality is poor.

Disclosure of Invention

In view of this, the invention aims to overcome the defects in the prior art and provides a universal optical cable production mold with low use cost.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a low-use-cost universal optical cable production die comprises a die holder and a die core, wherein the die holder is sleeved on the outer side of the die core; the mold core comprises a main body part, a forming section is arranged at the front end of the main body part, and a tapered mold core forming surface is processed on the outer wall of one end, close to the forming section, of the main body part; the die holder inner wall is provided with a first closing section, a second closing section and a third closing section in sequence along the axial direction, the inner wall of the third closing section is provided with a die holder forming surface corresponding to the die core forming surface, the distances among the die holder forming surface and the die core forming surface are the same, and an annular forming cavity is formed between the die holder forming surface and the die core forming surface.

Furthermore, the extrusion surface of the die holder is in smooth transition with the second closing-in section.

Further, the taper of the first closing-in section is larger than that of the second closing-in section.

Further, the die holder comprises a base body, and a forming sleeve is detachably arranged in an inner hole of the base body; one end of the forming sleeve is provided with a transition part connected with the forming surface of the die holder, and the other end of the forming sleeve is provided with a positioning part protruding out of the outer wall of the forming sleeve.

Furthermore, the positioning part is annular, and a positioning surface matched with the reference surface on the base body is arranged on the inner side of the positioning part.

Further, the forming sleeve is in threaded connection with the base body.

Further, the forming sleeve is fixed on the base body through a connecting piece.

Compared with the prior art, the invention has the following advantages:

the invention has simple structure, reasonable design, easy operation and implementation, low use cost and good universality, and can meet the production requirements only by replacing the matched forming sleeve aiming at products with different sheath thicknesses. Meanwhile, the mold core provided by the invention is adopted, the use of the needle tube is omitted, the cost can be reduced, the operation difficulty of an operator can be reduced during operation, and the risk during tube penetration is avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of a mold core in the invention;

FIG. 3 is a schematic view of a mold base with a molding sleeve installed therein according to an embodiment of the present invention;

fig. 4 is a schematic view of a mold core with an extension attached in accordance with an embodiment of the present invention.

Description of reference numerals:

1-a die holder; 2, a mold core; 3-a body portion; 4-forming section; 5-mold core molding surface; 6-a first mouth-closing section; 7-a second mouth-closing section; 8-die holder molding surface; 9-a substrate; 10-forming a sleeve; 11-a transition; 12-a positioning section; 13-a reference plane; 14-extension segment.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

A low-use-cost universal optical cable production die is shown in figures 1 and 2 and comprises a die holder 1 and a die core 2, wherein the die holder is sleeved on the outer side of the die core; the mold core comprises a main body part 3, a forming section 4 is arranged at the front end of the main body part, and a tapered mold core forming surface 5 is processed on the outer wall of one end, close to the forming section, of the main body part;

the die holder inner wall is equipped with first binding off section 6, second binding off section 7 and third binding off section along the axial in proper order, and third binding off section inner wall is equipped with the die holder profiled surface 8 that corresponds with the mold core profiled surface, and the die holder profiled surface is the same with the equal interval everywhere of mold core profiled surface, and then forms annular profiled cavity between the two.

Usually, the extrusion surface of the die holder is smoothly transited to the second closing-in section, and the first closing-in section is smoothly transited to the second closing-in section. Generally, the taper of the first closing-in section is greater than that of the second closing-in section, and a stepped gradual closing-in mode is adopted, so that the sheath material is more tightly wrapped outside the optical cable, and the compaction degree of the sheath is higher.

In order to improve the versatility, in an alternative embodiment, as shown in fig. 3, the die holder is of a combined structure, and comprises a base body 9 in which a sleeve 10 is detachably mounted; one end of the forming sleeve is provided with a transition part 11 connected with the forming surface of the die holder, and the other end of the forming sleeve is provided with a positioning part 12 protruding out of the outer wall of the forming sleeve. Because the shaping cover on the base member can be changed into different specifications as required, the commonality is very good. And, can change the new forming sleeve according to the degree of wear, because only need change the forming sleeve can, consequently, use cost reduces, and energy-concerving and environment-protective nature is good.

The positioning part is annular, a positioning surface matched with the reference surface 13 on the base body is arranged on the inner side of the positioning part so as to facilitate the installation and positioning of the forming sleeve, the outer diameter parts of the forming sleeves with different lengths or inner diameters are matched with the inner hole of the base body, and the transition parts of the forming sleeves with different specifications are identical in structure and specification and can be well connected with the forming surface of the die holder.

In specific implementation, the forming sleeve can be connected to the base body in a threaded manner, and certainly, the forming sleeve can also be fixed to the base body through a connecting piece, so that a person skilled in the art can select a conventional connecting structure as required. Because the shaping cover realizes the location with the base member through location portion, transition portion and die holder profiled surface homoenergetic form simultaneously and link up, consequently, connect reliability and positioning accuracy and be guaranteed all the time.

In an alternative embodiment, as shown in fig. 4, in order to better perform the optical cable production and simultaneously improve the versatility of the mold core, the molding section structure may be designed as a split structure, that is, an extension section 14 is installed on the molding section at the front end of the mold core main body part, and the extension sections with different lengths are installed in an adaptive manner, for example, the extension section is designed with various specifications such as 20mm, 25mm, 30mm, 35mm, 40mm, and the like, thereby effectively expanding the application range of the mold core. By applying the mold core provided by the invention, the use of a needle tube is omitted, the cost can be reduced, the operation difficulty of an operator can be reduced during operation, and the risk during tube penetration is avoided.

The invention has simple structure, reasonable design, easy operation and implementation, low use cost and good universality, and can meet the production requirements only by replacing the matched forming sleeve aiming at products with different sheath thicknesses.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims

1. A low-use-cost universal optical cable production die comprises a die holder and a die core, wherein the die holder is sleeved on the outer side of the die core; the method is characterized in that: the mold core comprises a main body part, a forming section is arranged at the front end of the main body part, and a tapered mold core forming surface is machined on the outer wall of one end, close to the forming section, of the main body part; the die holder inner wall is provided with a first closing section, a second closing section and a third closing section in sequence along the axial direction, the inner wall of the third closing section is provided with a die holder forming surface corresponding to the die core forming surface, the distances among the die holder forming surface and the die core forming surface are the same, and an annular forming cavity is formed between the die holder forming surface and the die core forming surface.

2. A low use-cost universal-type optical cable production mold according to claim 1, wherein: the extrusion surface of the die holder is in smooth transition with the second closing-in section.

3. A low use-cost universal-type optical cable production mold according to claim 1, wherein: the taper of the first closing-in section is larger than that of the second closing-in section.

4. A low use-cost universal-type optical cable production mold according to claim 1, wherein: the die holder comprises a base body, and a forming sleeve is detachably arranged in an inner hole of the base body; one end of the forming sleeve is provided with a transition part connected with the forming surface of the die holder, and the other end of the forming sleeve is provided with a positioning part protruding out of the outer wall of the forming sleeve.

5. A low use-cost universal-type optical cable production mold according to claim 4, wherein: the positioning part is annular, and a positioning surface matched with the reference surface on the base body is arranged on the inner side of the positioning part.

6. A low use-cost universal-type optical cable production mold according to claim 4, wherein: the forming sleeve is in threaded connection with the base body.

7. A low use-cost universal-type optical cable production mold according to claim 4, wherein: the forming sleeve is fixed on the base body through a connecting piece.