CN215849403U

CN215849403U - Plug buckle forming die

Info

Publication number: CN215849403U
Application number: CN202122474156.1U
Authority: CN
Inventors: 曾志坚; 邱朝鲜
Original assignee: Heyuan Shunke Plastic Products Co ltd
Current assignee: Shunke Zhilian Technology Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-02-18
Anticipated expiration: 2031-10-14

Abstract

The utility model provides a plug buckle forming die which comprises a die frame, an upper die, a lower die and an ejection device, wherein the upper die, the lower die and the ejection device are arranged on the die frame; the bottom of the upper die is embedded with an upper die core, and the bottom of the upper die core is provided with a plurality of upper cavities; the top of the lower die is embedded with a lower die core, and the top of the lower die core is provided with a plurality of lower cavities corresponding to the upper cavities; an accommodating cavity for accommodating the plug buckle is formed between the upper cavity and the lower cavity and is communicated with the flow channel; the ejection device comprises a telescopic rod, a first ejector pin and a second ejector pin, the lower end of the telescopic rod is fixed on the die frame, the upper end of the telescopic rod is connected with the first ejector pin, the upper end of the first ejector pin is abutted against the bottom of the plug buckle, the side portion of the plug buckle is abutted against the lower end of the second ejector pin, and the second ejector pin is sleeved in the upper die core and extends out of the bottom of the upper die core. The plug buckle forming die is simple in structure, convenient to disassemble and easy to maintain, a formed product can be prevented from generating a weld line, and the service life of the formed product is prolonged.

Description

Plug buckle forming die

Technical Field

The utility model relates to the technical field of injection molds, in particular to a plug buckle forming mold.

Background

With the continuous development of science and technology, the living standard of people is continuously improved, and various electric appliances and electronic products are widely applied to the daily life and work of people. Therefore, the demand for the plug of the electric appliance as a power connection device and the plug buckle as an important component of the plug is also increasing.

The plug buckle is generally formed by injection molding through a mold, and most of the traditional forming molds are complex in structure and inconvenient to detach and maintain. In addition, because injection molding is generally completed in a closed space in a mold, a fusion line is easily generated in the molding process of a product, and the fusion line of the product is easily broken, so that the service life of the molded product is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model provides a plug buckle forming die, which solves the problems that the forming die in the prior art is complex in structure and inconvenient to disassemble and maintain, and a formed product is easy to generate a weld line in the injection molding process of the forming die, so that the service life of the formed product is influenced, and the like.

The technical scheme of the utility model is realized as follows: a plug buckle forming die comprises a die frame, an upper die, a lower die and an ejection device, wherein the upper die, the lower die and the ejection device are mounted on the die frame; an upper die core is embedded at the bottom of the upper die, and a plurality of upper cavities are formed at the bottom of the upper die core; a lower die core is embedded in the top of the lower die, and a plurality of lower chambers corresponding to the upper chambers are arranged on the top of the lower die core; an accommodating cavity for accommodating a plug buckle is formed between the upper cavity and the lower cavity and is communicated with the flow channel; the ejection device comprises a telescopic rod, the lower end of the telescopic rod is fixed on the die carrier, the upper end of the telescopic rod is connected with a first ejector pin, the upper end of the first ejector pin is abutted against the bottom of the plug buckle, the side part of the plug buckle is abutted against the lower end of a second ejector pin, and the second ejector pin is sleeved in the upper die core and extends out of the bottom of the upper die core.

As a preferable technical solution, each plug buckle (7) is correspondingly provided with two ejection devices, which are respectively symmetrically arranged on two sides of the plug buckle.

As a preferable technical solution, the cross section of the second thimble is a trapezoid with a wide upper part and a narrow lower part.

As a preferred technical solution, the first thimble and the second thimble are made of elastic material.

As a preferable technical scheme, the lower die core is provided with an air exhaust hole which is communicated up and down at a position close to the edge of the lower cavity.

As a preferred technical scheme, a plurality of limiting bosses are arranged at the bottom of the upper mold core, and limiting grooves matched with the limiting bosses are arranged at the top of the lower mold core.

As a preferred technical solution, the number of the accommodating chambers is four.

After the technical scheme is adopted, the utility model has the beneficial effects that: the plug buckle forming die is simple in structure, convenient to disassemble and easy to maintain, a formed product can be prevented from generating a weld line, and the service life of the formed product is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic structural view of an upper mold core in the present invention;

fig. 5 is an exploded view of the upper mold core, the lower mold core and the ejector according to the present invention.

In the figure, the scaffold-1; an upper die-2, an upper die core-21, an upper cavity-22 and a limit boss-23; a lower die-3, a lower die core-31, a lower cavity-32 and a limiting groove-33; the ejection device-4, the telescopic rod-41, the first thimble-42 and the second thimble-43; an accommodating chamber-5; a flow passage-6; plug buckle-7.

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.

As shown in fig. 1 to 5, the plug buckle forming mold according to the embodiment of the present invention includes a mold frame 1, and an upper mold 2, a lower mold 3 and an ejector 4 mounted on the mold frame 1.

An upper die core 21 is embedded at the bottom of the upper die 2, and a plurality of upper cavities 22 are arranged at the bottom of the upper die core 21; a lower die core 31 is embedded at the top of the lower die 3, and a plurality of lower chambers 32 corresponding to the upper chamber 22 are arranged at the top of the lower die core 31; an accommodating chamber 5 for accommodating the plug buckle 7 is formed between the upper chamber 22 and the lower chamber 32, and the accommodating chamber 5 is communicated with the flow passage 6. The number of the accommodating chambers 5 is four, so that a plurality of products can be formed at one time conveniently, and the production efficiency is improved.

The ejection device 4 comprises an expansion link 41, a first thimble 42 and a second thimble 43; the lower end of the telescopic rod 41 is fixed on the die carrier 1, the upper end of the telescopic rod is connected with a first thimble 42, the upper end of the first thimble 42 is abutted against the bottom of the plug buckle 7, the side part of the plug buckle 7 is abutted against the lower end of a second thimble 43, and the second thimble 43 is sleeved in the upper die core 21 and extends out of the bottom of the upper die core 21.

Each plug buckle 7 is correspondingly provided with two ejection devices 4 which are respectively symmetrically arranged at two sides of the plug buckle 7 so as to keep the balance of acting forces at two sides when a product is demoulded, avoid the deformation of the product due to uneven stress and ensure the quality of the product.

The second thimble 43 has a trapezoidal cross section with a wide top and a narrow bottom, so that the second thimble is clamped in the upper mold core 21 to prevent the second thimble from falling off carelessly in the using process. The first ejector pin 42 and the second ejector pin 43 are both made of elastic materials, damage to the processed plug buckle 7 is avoided, and the yield of the plug buckle 7 is improved.

In order to escape air instantly and avoid a weld line in the molded product, an air vent (not shown) is disposed in the lower mold core 31 near the edge of the lower cavity 32 and is connected to the lower mold core. The number of the exhaust holes 33 is preferably two, and symmetrically disposed at both sides of the lower chamber 32.

In addition, a plurality of limiting bosses 23 are arranged at the bottom of the upper mold core 21, and limiting grooves 33 matched with the limiting bosses 23 are arranged at the top of the lower mold core 31, so that the mold is convenient to mount and position, and the production efficiency is improved.

The plug buckle forming die is simple in structure, convenient to disassemble and easy to maintain, a formed product can be prevented from generating a weld line, and the service life of the formed product is prolonged.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a plug buckle forming die, includes die carrier (1) and installs last mould (2), lower mould (3) and ejecting device (4) on die carrier (1), its characterized in that: an upper die core (21) is embedded at the bottom of the upper die (2), and a plurality of upper cavities (22) are arranged at the bottom of the upper die core (21); a lower die core (31) is embedded at the top of the lower die (3), and a plurality of lower cavities (32) corresponding to the upper cavities (22) are arranged at the top of the lower die core (31); an accommodating chamber (5) for accommodating a plug buckle (7) is formed between the upper chamber (22) and the lower chamber (32), and the accommodating chamber (5) is communicated with the flow channel (6); the ejection device (4) comprises an expansion link (41), the lower end of the expansion link (41) is fixed on the die carrier (1), the upper end of the expansion link (41) is connected with a first ejector pin (42), the upper end of the first ejector pin (42) is abutted against the bottom of the plug buckle (7), the side part of the plug buckle (7) is abutted against the lower end of a second ejector pin (43), and the second ejector pin (43) is sleeved in the upper die core (21) and extends out of the bottom of the upper die core (21).

2. The plug snap forming mold according to claim 1, wherein: each plug buckle (7) is correspondingly provided with two ejection devices (4) which are respectively and symmetrically arranged at two sides of the plug buckle (7).

3. The plug snap forming mold according to claim 1 or 2, wherein: the section of the second thimble (43) is a trapezoid with a wide upper part and a narrow lower part.

4. The plug snap forming mold according to claim 1 or 2, wherein: the first thimble (42) and the second thimble (43) are made of elastic materials.

5. The plug snap forming mold according to claim 1 or 2, wherein: the lower die core (31) is provided with an air vent communicated up and down at a position close to the edge of the lower cavity (32).

6. The plug snap forming mold according to claim 1 or 2, wherein: the bottom of the upper die core (21) is provided with a plurality of limiting bosses (23), and the top of the lower die core (31) is provided with limiting grooves (33) matched with the limiting bosses (23).

7. The plug snap forming mold according to claim 1 or 2, wherein: the number of the accommodating chambers (5) is four.