CN216718747U

CN216718747U - Core inserting die

Info

Publication number: CN216718747U
Application number: CN202123362834.1U
Authority: CN
Inventors: 孙健; 郑镇宏
Original assignee: Chaozhou Three Circle Group Co Ltd; Nanchong Three Circle Electronics Co Ltd
Current assignee: Chaozhou Three Circle Group Co Ltd; Nanchong Three Circle Electronics Co Ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-06-10
Anticipated expiration: 2031-12-28

Abstract

The utility model relates to the technical field of dies and discloses a core inserting die which comprises a die body, a boss, a pin inserting block, a pin seat and a guide pin, wherein the die body is provided with an accommodating cavity penetrating through the die body; the boss is arranged in the accommodating cavity; the boss is provided with a core guide hole; the pin inserting block is provided with a first guide pin hole and a core pin corresponding to the guide pin hole; the core needle is inserted from one end of the accommodating cavity, and the core needle is inserted into the core guide hole; the needle seat is provided with an inserting block and a second guide pin hole corresponding to the first guide pin hole; the insert block is inserted from the other end of the accommodating cavity; one end of the guide pin is arranged in the first guide pin hole, and the other end of the guide pin is arranged in the second guide pin hole. The utility model has simple and compact structure, avoids the clearance and friction between the core needle and the core needle hole, reduces the mould cost and improves the precision of the optical fiber hole.

Description

Core inserting die

Technical Field

The utility model relates to the technical field of molds, in particular to a core inserting mold.

Background

The MT ferrule is used as a core component of the multi-core optical fiber connector, has the characteristics of high flux, high optical fiber wiring density and the like, is widely applied to the field of optical communication, particularly single-mode low-loss MT ferrules, has high requirements on relevant indexes such as product position degree, aperture, opening included angle and the like due to special application scenes, and further requires that a mold for producing the MT ferrule not only has high-precision processing quality, but also needs special structural design to ensure the product quality.

At present, the traditional mould for forming the core insert firstly requires that a core needle has a slender structure and has high processing difficulty. Secondly, the matching of the core needle and the core needle hole is an important factor influencing the precision of the optical fiber hole after the MT ferrule is molded, and when the ferrule is molded by adopting the existing mold, the core needle needs to slide in the core needle hole, and in order to ensure the precision, on one hand, the aperture of the core needle hole is required to be larger than the diameter of the core needle, namely, the core needle hole and the core needle are in clearance fit, but the core needle fluctuates during injection molding due to the existence of the clearance, so that the product quality is influenced; on the other hand, due to the insertion and separation operation of the core needle in the core needle hole, the core needle and the core needle hole can be abraded in friction, the gap between the core needle and the core needle hole is further increased, the service life of a die part is shortened, and the product quality is further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a core inserting die which is simple and compact in structure, avoids the clearance and friction between a core needle and a core needle hole, reduces the die cost and improves the precision of an optical fiber hole.

In order to solve the technical problem, the utility model provides a ferrule mould, which comprises a mould body, a boss, a pin inserting block, a pin seat and a guide pin, wherein the mould body is provided with an accommodating cavity penetrating through the mould body; the boss is arranged in the accommodating cavity; the boss is provided with a core guide hole; the pin inserting block is provided with a first guide pin hole and a core pin corresponding to the guide pin hole; the core needle is inserted from one end of the accommodating cavity, and the core needle is inserted into the core guide hole; the needle seat is provided with an insertion block and a second guide pin hole corresponding to the first guide pin hole; the insert block is inserted from the other end of the accommodating cavity; one end of the guide pin is arranged in the first guide pin hole, and the other end of the guide pin is arranged in the second guide pin hole.

Preferably, the die body comprises an upper die body and a lower die body, the sections of which are groove-shaped, and the upper die body and the lower die body are spliced together; the boss is arranged on the lower die body.

Preferably, one end of the insert block abuts against the boss.

Preferably, the number of the guide pins is two, and the number of the first guide pin holes and the number of the second guide pin holes are two.

Preferably, the core hole part is protruded from an upper surface of the boss.

Preferably, the boss is a trapezoidal structure having a first upper surface and a second upper surface, and the height of the second upper surface is greater than that of the first upper surface; the pilot bore portion is raised above the first upper surface.

Preferably, the boss and the die body are of an integrally formed structure.

Preferably, the side wall of the boss far away from the core guide hole is connected with one end of the insert block; the insertion block and the boss are inserted into the accommodating cavity together.

Preferably, the boss and the insert block are of an integrally formed structure.

Preferably, one end of the accommodating cavity close to the insertion block is provided with a sliding hole corresponding to the first guide pin hole.

The utility model has the following beneficial effects:

the core inserting mould fixes the core needle on the inserting needle block, can greatly shorten the length of the core needle, reduce the cost of the mould, eliminate the clearance between the core needle and the core needle hole, and avoid the abrasion caused by the friction between the core needle and the core needle hole in the forming period, thereby prolonging the service life of the mould parts and improving the forming quality of the core inserting.

Drawings

Fig. 1 is a schematic structural diagram of a ferrule mold according to an embodiment of the present invention;

fig. 2 is an exploded view of a ferrule mold provided by an embodiment of the present invention.

Reference numerals:

1. a mold body; 11. feeding a mold body; 12. a lower die body; 13. a slide hole; 2. a boss; 21. a core guide hole; 3. inserting a pin block; 31. a core needle; 4. a needle seat; 41. inserting a block; 42. a second guide pin hole; 5. and (6) guiding the needle.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, 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 meaning either a fixed connection, a removable connection, or an integral connection; 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 present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1 and 2, a preferred embodiment of the present invention provides a ferrule mold, including a mold body 1, a boss 2, a pin block 3, a pin holder 4 and a guide pin 5, wherein the mold body 1 is provided with an accommodating cavity penetrating through the mold body; the boss 2 is arranged in the accommodating cavity; the boss 2 is provided with a core guide hole 21; the pin block 3 is provided with a first guide pin hole and a core pin 31 corresponding to the guide pin hole 21; the core needle 31 is inserted from one end of the accommodating cavity, and the core needle 31 is inserted into the core guiding hole 21; the needle seat 4 is provided with an inserting block 41 and a second guide pin hole 42 corresponding to the first guide pin hole; the insert block 41 is inserted from the other end of the accommodation chamber; one end of the guide pin 5 is disposed in the first guide pin hole, and the other end thereof is disposed in the second guide pin hole 42.

It should be noted that, the guide pin 5 may have one end disposed in the first guide pin hole, and the other end inserted into the accommodating cavity and disposed in the second guide pin hole 42; or one end of the second guide pin hole 42 can be arranged first, and the other end of the second guide pin hole can be arranged in the first guide pin hole after being inserted into the accommodating cavity.

In some preferred embodiments of the present invention, the mold body 1 includes an upper mold body 11 and a lower mold body 12, both of which have a groove-shaped cross section, and the upper mold body 11 and the lower mold body 12 are spliced together; the boss 2 is arranged on the lower die body 12.

In some preferred embodiments of the present invention, one end of the insert block 41 abuts against the boss 2.

In some preferred embodiments of the present invention, there are two guide pins 5, and there are two corresponding first and second guide pin holes 42.

In some preferred embodiments of the present invention, the core guide hole 21 is partially protruded on the upper surface of the boss 2.

In some preferred embodiments of the present invention, the boss 2 has a trapezoidal structure having a first upper surface and a second upper surface, the height of the second upper surface being greater than the height of the first upper surface; the core guide hole 21 is partially raised from the first upper surface.

In some preferred embodiments of the present invention, the boss 2 and the mold body 1 are integrally formed.

In some preferred embodiments of the present invention, alternatively, the side wall of the boss 2 away from the core guide hole 21 is connected to one end of the insert block 41; the insert block 41 and the boss 2 are inserted into the accommodating cavity together. Therefore, the structure in the accommodating cavity can be simplified, and cleaning management is facilitated.

In some preferred embodiments of the present invention, the boss 2 and the insert block 41 are integrally formed.

In some preferred embodiments of the present invention, one end of the accommodating cavity close to the insertion block 41 is provided with a sliding hole 13 corresponding to the first guide pin hole. Thus, the positioning and installation of the guide pin 5 can be facilitated.

The using steps of the core insert mould of the preferred embodiment are as follows:

a. the inserting pin block 3 fixed with the core pin 31 and the guide pin 5 is covered at one end opening of the lower die body 12, the inserting block 41 is inserted from the other end opening of the lower die body 12, so that the core pin 31 is inserted into the guide pin hole 21, the guide pin 5 is inserted into the second guide pin hole 42 along the slide hole 13, and meanwhile, the inserting block 41 and the boss 2 are mutually abutted and matched;

b. the upper die body 11 and the lower die body 12 are matched and spliced, so that the accommodating cavity is surrounded by the upper die body 11, the lower die body 12, the needle seat 4 and the inserting needle block 3 to form a sealing cavity for forming the MT inserting core; wherein, the core needle 31 is used for forming the optical fiber hole of the MT inserting core, the guide needle 5 is used for forming the guide hole of the MT inserting core, the boss 2 is used for forming the window part for injecting the adhesive of the MT inserting core, and the guide core hole 21 is used for forming the optical fiber guide groove of the MT inserting core;

c. injecting resin material into the sealing cavity, and curing and molding;

d. and opening the mold to take out the MT insertion core, specifically, opening the upper mold body 11, and separating the needle seat 4 and the insertion pin block 3 from the lower mold body 12 along the horizontal direction, so that the formed MT insertion core can be taken out.

In the steps a and b, the upper mold body 11 and the lower mold body 12 can be matched and spliced firstly, then the pin block 3 is covered on an opening at one end of the mold body 1, and the pin block 41 extends into the opening at the other end of the mold body 1; in the step d, the needle base 4 and the pin block 3 can be separated from the mold body 1 along the horizontal direction, and then the upper mold body 11 is opened to take out the MT ferrule.

To sum up, a preferred embodiment of the present invention provides a ferrule mold, which is compared with the prior art:

the core pin 31 is fixed on the pin block 3 by the core pin mould of the utility model, which can greatly shorten the length of the core pin 31, reduce the cost of the mould, eliminate the clearance between the core pin 31 and the hole of the core pin 31, and avoid the abrasion caused by the friction between the core pin 31 and the hole of the core pin 31 in the forming period, thereby prolonging the service life of the mould parts and improving the forming quality of the core pin.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A ferrule mold, comprising:

the die body is provided with an accommodating cavity penetrating through the die body;

the boss is arranged in the accommodating cavity; the boss is provided with a core guide hole;

the pin inserting device comprises a pin inserting block, a pin guiding block and a pin guiding block, wherein the pin inserting block is provided with a first pin guiding hole and a core pin corresponding to the core guiding hole; the core needle is inserted from one end of the accommodating cavity, and the core needle is inserted into the core guide hole;

the needle seat is provided with an inserting block and a second guide pin hole corresponding to the first guide pin hole; the insert block is inserted from the other end of the accommodating cavity;

and one end of the guide pin is arranged in the first guide pin hole, and the other end of the guide pin is arranged in the second guide pin hole.

2. A ferrule mold according to claim 1, wherein: the die body comprises an upper die body and a lower die body, the sections of the upper die body and the lower die body are groove-shaped, and the upper die body and the lower die body are spliced together; the boss is arranged on the lower die body.

3. The ferrule mold of claim 1, wherein: one end of the insertion block is abutted against the boss.

4. A ferrule mold according to claim 1, wherein: the guide pin is provided with two, first guide pin hole with the second guide pin hole corresponds is provided with two.

5. The ferrule mold of claim 1, wherein: the core guiding hole is partially raised on the upper surface of the boss.

6. A ferrule mold according to claim 1, wherein: the boss is of a trapezoidal structure and is provided with a first upper surface and a second upper surface, and the height of the second upper surface is greater than that of the first upper surface; the pilot bore portion is raised above the first upper surface.

7. A ferrule mold according to claim 1, wherein: the boss and the die body are of an integrally formed structure.

8. The ferrule mold of claim 1, wherein: alternatively, the side wall of the boss far away from the core guide hole is connected with one end of the insert block; the insert block and the boss are inserted into the accommodating cavity together.

9. A ferrule mold according to claim 8, wherein: the boss and the insert block are of an integrally formed structure.

10. A ferrule mold according to claim 1, wherein: and one end of the accommodating cavity close to the inserting block is provided with a sliding hole corresponding to the first guide pin hole.