CN211941886U

CN211941886U - Injection molding runner structure for forming 16PIN Type-C connector

Info

Publication number: CN211941886U
Application number: CN202020206110.4U
Authority: CN
Inventors: 龚志鹏; 伍江亭; 李垚; 张建明
Original assignee: Shenzhen Chuangyitong Technology Co Ltd
Current assignee: Shenzhen Chuangyitong Technology Co Ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-11-17
Anticipated expiration: 2030-02-25

Abstract

The utility model discloses an injection molding runner structure for forming a 16PIN Type-C connector, which comprises a main runner, wherein the main runner extends vertically downwards, and the lower end of the main runner is connected with two first branch runners and a second branch runner; the two first branch flow passages respectively extend to the left and the right and are positioned on the same straight line; this second divides the runner to lie in same horizontal plane with two first branch runners, and the second divides the runner to extend forward and perpendicular with each first branch runner, sets up second branch runner, fourth branch runner and fifth branch runner through the cooperation to divide the branch runner of 4 caves in the middle of with several grades more, make the flow length ratio that gets into all die cavities keep unanimous basically, thereby reach and fill the balance, be favorable to avoiding cold glue to get into gluey core, thereby reach good flow effect, effectively promote the quality of injection moulding product.

Description

Injection molding runner structure for forming 16PIN Type-C connector

Technical Field

The utility model belongs to the technical field of the connector technique and specifically relates to indicate a runner structure of moulding plastics that is used for 16PIN Type-C connector of shaping.

Background

USB Type-C is a completely new form of USB interface (USB interfaces also Type-a and Type-B) that has been released with the latest USB 3.1 standard. The USB-IF organization is released in 2014 8 months, is a brand new interface established by a USB standardization organization in order to solve the defects that the USB interface is not unified in physical interface specification and only can transmit electric energy in one way for a long time, and integrates functions of charging, displaying, data transmission and the like.

According to the different quantity of PIN PINs (namely conductive terminals), the Type-C connector is divided into a plurality of types, wherein 16PIN Type-C connectors are common, in the prior art, the 16PIN Type-C connectors are usually required to be subjected to multiple injection molding during manufacturing, firstly, upper and lower rows of terminals are subjected to injection molding to form an upper terminal module and a lower terminal module, then the upper terminal module and the lower terminal module are overlapped to be subjected to the last injection molding, in the last injection molding, a multi-cavity mold is usually adopted, 12 cavities are common, and 12 products can be formed by injection molding at one time, however, the current mold is easy to cause that the middle 4 cavities are not filled fully due to unreasonable flow channel design, the reason is that cold materials in the middle 4 cavities enter the rubber core too early in the filling process, and the product is thin in thickness, so that the flow is hindered, and the filling is not full. Therefore, there is a need to develop a solution to the above problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an injection molding runner structure for 16PIN Type-C connector, which can effectively solve the problem that the injection molding runner of the existing mold is easy to cause the filling of the middle 4 cavities to be not full.

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

an injection molding runner structure for forming a 16PIN Type-C connector comprises a main runner, wherein the main runner extends vertically downwards, and the lower end of the main runner is connected with two first branch runners and a second branch runner; the two first branch runners extend leftwards and rightwards respectively and are positioned on the same straight line, the tail end of each first branch runner is connected with third branch runners which are symmetrically arranged leftwards and rightwards, the two third branch runners and the first branch runners are positioned on the same horizontal plane, and the tail end of each third branch runner is connected with first injection runners which are symmetrically arranged leftwards and rightwards; this second divides the runner to lie in the same horizontal plane with two first branches runner, the second divides the runner to extend forward and perpendicular with each first branch runner, the trailing end connection of second branch runner has the fourth branch runner that bilateral symmetry set up, two fourth branch runners lie in the same horizontal plane with the second branch runner, the tail end of each fourth branch runner all is connected with the fifth branch runner that extends forward, two fifth branch runners lie in the same horizontal plane with the fourth branch runner, the tail end of each fifth branch runner all is connected with the second that bilateral symmetry set up and pours into the runner, each first pouring into runner and each second pouring into the runner and communicate with the die cavity that corresponds respectively.

Preferably, the third branched flow passage is located at the front side of the first branched flow passage, and the third branched flow passage is L-shaped.

Preferably, the length of the first sub-channel is greater than the length of the second sub-channel.

As a preferable scheme, the first injection runner and the second injection runner have the same structure, and each of the first injection runner and the second injection runner comprises a transverse section, a longitudinal section and two vertical sections, wherein the transverse section is in cross communication with the longitudinal section, and the two vertical sections are respectively communicated with the front end and the rear end of the longitudinal section.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

the second sub-runner, the fourth sub-runner and the fifth sub-runner are arranged in a matched mode, so that the sub-runners of 4 cavities in the middle are divided into multiple stages, the flow length ratio of all the mold cavities is kept basically consistent, filling balance is achieved, cold glue is prevented from entering the glue core, a good flowing effect is achieved, and the quality of injection molding products is effectively improved.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

fig. 2 is a perspective view of the 16PIN Type-C connector according to the preferred embodiment of the present invention after molding.

The attached drawings indicate the following:

10. main runner 21 and first branch runner

22. The second sub-flow passage 23 and the third sub-flow passage

24. The fourth and fifth

branched runners

25, 25

31. First injection flow channel 32 and second injection flow channel

301. Transverse segment 302, longitudinal segment

303. Vertical section 40, 16PIN Type-C connector

41. An upper terminal module 42 and a lower terminal module

43. A plastic component.

Detailed Description

Referring to fig. 1, a detailed structure of a preferred embodiment of the present invention is shown, including a main channel 10.

This sprue 10 extends perpendicularly downwards, and the internal diameter of sprue 10 from top to bottom increases gradually, and the lower extreme of sprue 10 is connected with two first branch runners 21 and a second branch runner 22.

The two first branched runners 21 extend leftwards and rightwards respectively and are positioned on the same straight line, the tail end of each first branched runner 21 is connected with third branched runners 23 which are arranged in bilateral symmetry, the two third branched runners 23 and the first branched runners 21 are positioned on the same horizontal plane, and the tail end of each third branched runner 23 is connected with first injection runners 31 which are arranged in bilateral symmetry; in this embodiment, the third shunting passage 23 is located at the front side of the first shunting passage 21, and the third shunting passage 23 is L-shaped.

The second branch runner 22 and the two first branch runners 21 are located on the same horizontal plane, the second branch runner 22 extends forwards and is perpendicular to each first branch runner 21, the tail end of the second branch runner 22 is connected with fourth branch runners 24 which are arranged in bilateral symmetry, the two fourth branch runners 24 and the second branch runner 22 are located on the same horizontal plane, the tail end of each fourth branch runner 24 is connected with a fifth branch runner 25 which extends forwards, the two fifth branch runners 25 and the fourth branch runners 24 are located on the same horizontal plane, the tail end of each fifth branch runner 25 is connected with second injection runners 32 which are arranged in bilateral symmetry, and each first injection runner 31 and each second injection runner 32 are respectively communicated with a corresponding mold cavity (not shown). In this embodiment, the length of the first sub-channel 21 is greater than the length of the second sub-channel 22; the first injection flow channel 31 and the second injection flow channel 32 have the same structure, and each of the first injection flow channel 31 and the second injection flow channel 32 includes a transverse section 301, a longitudinal section 302, and two vertical sections 303, wherein the transverse section 301 and the longitudinal section 302 are in cross communication, and the two vertical sections 303 are respectively communicated with the front end and the rear end of the longitudinal section 302.

Detailed description the working principle of the present embodiment is as follows:

in operation, the upper sub-module 41 and the lower sub-module 42 of the 16PIN Type-C connector 40 are stacked and placed in the mold cavity, and then the molten plastic is injected into the main runner 10, and the molten plastic enters the corresponding mold cavity through the corresponding sub-runner and the injection runner to form a plastic part 43 by injection molding, and the upper sub-module 41 and the lower sub-module 42 are fixed together to form a finished product (as shown in fig. 2).

The utility model discloses a design focus lies in: the second sub-runner, the fourth sub-runner and the fifth sub-runner are arranged in a matched mode, so that the sub-runners of 4 cavities in the middle are divided into multiple stages, the flow length ratio of all the mold cavities is kept basically consistent, filling balance is achieved, cold glue is prevented from entering the glue core, a good flowing effect is achieved, and the quality of injection molding products is effectively improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a runner structure of moulding plastics for 16PIN Type-C connector of shaping which characterized in that: the device comprises a main flow channel, a first flow dividing channel and a second flow dividing channel, wherein the main flow channel vertically extends downwards; the two first branch runners extend leftwards and rightwards respectively and are positioned on the same straight line, the tail end of each first branch runner is connected with third branch runners which are symmetrically arranged leftwards and rightwards, the two third branch runners and the first branch runners are positioned on the same horizontal plane, and the tail end of each third branch runner is connected with first injection runners which are symmetrically arranged leftwards and rightwards; this second divides the runner to lie in the same horizontal plane with two first branches runner, the second divides the runner to extend forward and perpendicular with each first branch runner, the trailing end connection of second branch runner has the fourth branch runner that bilateral symmetry set up, two fourth branch runners lie in the same horizontal plane with the second branch runner, the tail end of each fourth branch runner all is connected with the fifth branch runner that extends forward, two fifth branch runners lie in the same horizontal plane with the fourth branch runner, the tail end of each fifth branch runner all is connected with the second that bilateral symmetry set up and pours into the runner, each first pouring into runner and each second pouring into the runner and communicate with the die cavity that corresponds respectively.

2. The injection molding runner structure for molding a 16PIN Type-C connector according to claim 1, wherein: the third shunting passage is positioned on the front side of the first shunting passage and is L-shaped.

3. The injection molding runner structure for molding a 16PIN Type-C connector according to claim 1, wherein: the length of the first branch flow channel is larger than that of the second branch flow channel.

4. The injection molding runner structure for molding a 16PIN Type-C connector according to claim 1, wherein: the first injection runner and the second injection runner are identical in structure and respectively comprise a transverse section, a longitudinal section and two vertical sections, the transverse section is communicated with the longitudinal section in a cross mode, and the two vertical sections are respectively communicated with the front end and the rear end of the longitudinal section.