CN210758935U - An earphone injection mold - Google Patents

Abstract

The utility model relates to the technical field of earphone production, in particular to an earphone injection mold, which comprises a fixed mold and a movable mold, the utility model is additionally provided with a driving motor, a threaded rod and a transmission mechanism, when in injection molding, the driving motor drives the transmission mechanism to make the threaded rod move up and down, when in injection molding, the driving motor drives the threaded rod to move down, so that a gap between the fixed mold and the movable mold is reduced as much as possible, the yield of the earphone shell which is injected is higher, after the injection molding is finished, the driving motor drives the threaded rod to move up, so that the fixed mold and the movable mold are quickly separated, the earphone shell which is injected is taken out, and the bottom of the injection molding part is additionally provided with a heat dissipation water pipe, so that the heat generated during the injection molding is quickly reduced, the injection molding waiting time is shortened, the injection molding part of the utility model comprises a plurality, the production efficiency is effectively improved.

Description

An earphone injection mold

technical field

The utility model relates to the technical field of earphone production, in particular to an earphone injection mold.

Background technique

At present, in the process of producing earphones, it is necessary to inject the earphone shell. The injection mold is generally suitable for thermoforming of thermoplastics. Using the hot-melting principle of thermoplastics, the molten plastic is injected into the cavity of the mold through an injection molding machine. , then cool and shape, open the mold to take out the plastic product, injection molding needs to use a fixed mold and a movable mold, the current method is to face the two mold cores with the concave ends facing each other, and connect the two mold cores through a three-way connecting pipe to form One group, and then one or more groups are put into the fixed mold by the robot, and the injection molding is performed after the mold is closed.

However, when the existing injection mold is injected, it is difficult to closely fit the fixed mold and the movable mold. An earphone shell is injection molded, the production efficiency is low, and the existing injection mold has poor heat dissipation.

Utility model content

The utility model provides an earphone injection mold with high production efficiency aiming at the problems of the prior art.

In order to solve the above-mentioned technical problems, the present utility model adopts the following technical solutions: an earphone injection mold provided by the present utility model includes a fixed mold and a movable mold, and the upper end of the fixed mold is provided with a plurality of positioning grooves, so The lower end of the movable mold is provided with a plurality of positioning columns, the positioning columns and the positioning grooves can be used together, the middle of the movable mold is provided with an injection port, the fixed mold is buckled with the movable mold, and the fixed mold An injection part is arranged between the movable mold and the injection part, and the injection part includes an injection channel and a plurality of injection cavities, the injection port communicates with the injection channel, and the injection channel respectively communicates with a plurality of injection cavities , the bottom of the injection part is provided with a cooling water pipe, the fixed mold is provided with an installation cavity, the installation cavity is provided with a threaded rod, the upper part of the threaded rod is connected with the movable mold, and the lower part of the threaded rod is provided with a transmission A drive motor is fixedly connected to the side wall of the fixed die, and the output shaft of the drive motor penetrates the side wall of the fixed die and is connected to the transmission mechanism.

Preferably, the transmission mechanism includes a first gear and a second gear, the inner teeth of the second gear mesh with the threaded rod, the first gear is connected to the output end of the drive motor, and the first gear is connected to the output end of the drive motor. A gear meshes with the second gear.

Preferably, the cooling water pipe is connected to a circulating pump and a water tank, and the cooling water pipe, the circulating pump and the water tank form a water circulation system.

Preferably, there are four positioning grooves, four positioning posts, four positioning slots are distributed around the upper end of the fixed mold, and four positioning posts are distributed around the lower end of the movable mold , the diameter of the positioning groove is consistent with the diameter of the positioning column.

Preferably, a plurality of the injection molding cavities are arranged in a matrix, and the cooling water pipes are arranged in a U-shape below the injection molding portion.

Preferably, both ends of the upper part of the movable mold are provided with handles.

Preferably, the front end of the positioning column is set in a conical shape, and the bottom of the positioning groove is set in a conical shape.

Preferably, the heat dissipation water pipe, the fixed mold, and the movable mold are all made of metal materials.

The beneficial effects of the present utility model:

An earphone injection mold provided by the utility model includes a fixed mold and a movable mold. The upper end of the fixed mold is provided with a plurality of positioning grooves, and the lower end of the movable mold is provided with a plurality of positioning columns. The grooves can be used together, the middle part of the movable mold is provided with an injection port, the fixed mold and the movable mold are fastened together, an injection molding part is arranged between the fixed mold and the movable mold, and the injection molding part includes an injection flow a plurality of injection cavities, the injection port communicates with the injection channel, the injection channels respectively communicate with a plurality of injection cavities, the bottom of the injection part is provided with a cooling water pipe, and the inside of the fixed mold is provided with a mounting The installation cavity is provided with a threaded rod, the upper part of the threaded rod is connected with the movable mold, the lower part of the threaded rod is provided with a transmission mechanism, the side wall of the fixed mold is fixedly connected with a drive motor, the The output shaft of the driving motor penetrates the side wall of the fixed mold and is connected to the transmission mechanism. Compared with the traditional earphone injection mold, the present invention adds a driving motor, a threaded rod and a transmission mechanism. During injection molding, the driving motor drives the The transmission mechanism makes the threaded rod move up and down. When injection molding, the drive motor drives the threaded rod to move downward, so that the gap between the fixed mold and the movable mold is reduced as much as possible, so that the quality rate of the injection-molded earphone shell is high. After completion, the drive motor drives the threaded rod to move upward, so that the fixed mold and the movable mold are quickly separated, and the injection-molded earphone shell is taken out, and the utility model adds a cooling water pipe at the bottom of the injection molding part, so that the heat generated during injection molding is quickly reduced. , the waiting time for injection molding is shortened, and the injection molding part of the utility model includes a plurality of injection molding cavities, which can complete the injection molding of multiple earphone shells at one time, thereby effectively improving the production efficiency.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is a top view of the injection molding part of the present invention.

The reference numbers are:

Fixed mold--1, movable mold--2, positioning groove--3, positioning column--4, injection port--5, injection part--6, injection runner--7, injection cavity--8, heat dissipation Water pipe--9, installation cavity--10, threaded rod--11, transmission mechanism--12, drive motor--13, first gear--14, second gear--15, circulating pump--16, water tank --17, handle --18.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the embodiments and the accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2 provided by the present utility model, an earphone injection mold provided by the present utility model includes a fixed mold 1 and a movable mold 2. The upper end of the fixed mold 1 is provided with a plurality of positioning grooves 3, and the movable mold 1 is provided with a plurality of positioning grooves 3. The lower end of the mold 2 is provided with a plurality of positioning columns 4, the positioning columns 4 and the positioning grooves 3 can be used together, the middle of the movable mold 2 is provided with an injection port 5, and the fixed mold 1 is buckled with the movable mold 2. In combination, an injection molding part 6 is arranged between the fixed mold 1 and the movable mold 2, and the injection molding part 6 includes an injection molding channel 7 and a plurality of injection molding cavities 8, and the injection port 5 and the injection molding channel 7 The injection flow channel 7 is respectively connected with a plurality of injection cavities 8, the bottom of the injection part 6 is provided with a cooling water pipe 9, the fixed mold 1 is provided with an installation cavity 10, and the installation cavity 10 is provided with a threaded rod 11. The upper part of the threaded rod 11 is connected to the movable die 2, the lower part of the threaded rod 11 is provided with a transmission mechanism 12, the side wall of the fixed die 1 is fixedly connected with a drive motor 13, and the drive motor 13 The output shaft runs through the side wall of the fixed mold 1 and is connected to the transmission mechanism 12. Compared with the traditional earphone injection mold, the present invention adds a drive motor 13, a threaded rod 11 and a transmission mechanism 12. During injection molding, The drive motor 13 drives the transmission mechanism 12 to make the threaded rod 11 move up and down. During injection molding, the drive motor 13 drives the threaded rod 11 to move down, so that the gap between the fixed mold 1 and the movable mold 2 is reduced as much as possible, so that the injection molding The earphone shell has a high yield rate. After the injection molding is completed, the driving motor 13 drives the threaded rod 11 to move upward, so that the fixed mold 1 and the movable mold 2 are quickly separated, and the injection molded earphone shell is taken out. 6. A cooling water pipe 9 is added at the bottom, so that the heat generated during injection molding is rapidly reduced, and the waiting time for injection molding is shortened. In addition, the injection molding part 6 of the present invention includes a plurality of injection molding cavities 8, which can complete the injection molding of multiple earphone shells at one time. Effectively improve the production efficiency.

In this embodiment, the transmission mechanism 12 includes a first gear 14 and a second gear 15 , the inner teeth of the second gear 15 mesh with the threaded rod 11 , and the first gear 14 is connected to the drive motor The output end of 13 is connected, and the first gear 14 meshes with the second gear 15 .

In this embodiment, the cooling water pipe 9 is connected to a circulating pump 16 and a water tank 17, and the cooling water pipe 9, the circulating pump 16, and the water tank 17 form a water circulation system, and the cooling water inside the water tank 17 is circulated by the circulating pump 16. The pump is pumped into the heat dissipation water pipe 9, so that the temperature in the injection mold of the earphone is rapidly lowered.

In this embodiment, there are four positioning grooves 3 and four positioning columns 4 , the four positioning grooves 3 are distributed around the upper end of the fixed die 1 , and the four positioning columns 4 are distributed Around the lower end of the movable die 2 , the diameter of the positioning groove 3 is consistent with the diameter of the positioning column 4 .

In this embodiment, a plurality of the injection cavities 8 are arranged in a matrix. In order to further reduce the temperature in the earphone injection mold rapidly, the cooling water pipes 9 are arranged in a U-shape below the injection part 6 .

In this embodiment, in order to facilitate the separation of the movable mold 2 from the fixed mold 1 , the upper ends of the movable mold 2 are provided with handles 18 , and the handles 18 are convenient for the user to move the fixed mold 1 .

In this embodiment, in order to further make the fixed die 1 fit with the movable die 2, the front end of the positioning column 4 is set to be conical, and the bottom of the positioning groove 3 is set to be conical. In this embodiment, the heat dissipation water pipe 9 , the fixed mold 1 and the movable mold 2 are all made of metal materials.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment, it is not intended to limit the present Professional and technical personnel, within the scope of the technical solution of the present invention, make some changes or modifications to the equivalent embodiments of the equivalent changes by using the technical content disclosed above, provided that the content of the technical solution of the present invention is not departed from, according to the present invention. The utility model technology refers to any simple modification, equivalent change and modification made to the above embodiments, which all belong to the scope of the technical solution of the present utility model.

Claims (8)

1. The utility model provides an earphone injection mold which characterized in that: comprises a fixed die and a movable die, wherein the upper end of the fixed die is provided with a plurality of positioning grooves, the lower end of the movable die is provided with a plurality of positioning columns, the positioning column and the positioning groove can be matched for use, the middle part of the movable mould is provided with an injection molding opening, the fixed mould is buckled with the movable mould, an injection molding part is arranged between the fixed mold and the movable mold, the injection molding part comprises an injection molding runner and a plurality of injection molding cavities, the injection molding opening is communicated with the injection molding runner which is respectively communicated with the plurality of injection molding cavities, the bottom of the injection molding part is provided with a heat dissipation water pipe, the inner part of the fixed die is provided with an installation cavity, the installation cavity is provided with a threaded rod, threaded rod upper portion with the movable mould is connected, the threaded rod lower part is provided with drive mechanism, the lateral wall fixedly connected with driving motor of cover half, driving motor's output shaft runs through the lateral wall of cover half with drive mechanism connects.

2. The injection mold for the earphone according to claim 1, wherein: the transmission mechanism comprises a first gear and a second gear, the internal insection of the second gear is meshed with the threaded rod, the first gear is connected with the output end of the driving motor, and the first gear is meshed with the second gear.

3. The injection mold for the earphone according to claim 1, wherein: the heat dissipation water pipe is externally connected with a circulating pump and a water tank, and the heat dissipation water pipe, the circulating pump and the water tank form a water circulation system.

4. The injection mold for the earphone according to claim 1, wherein: the positioning grooves are four, the positioning columns are four, the positioning grooves are distributed around the upper end of the fixed die, the positioning columns are distributed around the lower end of the movable die, and the diameters of the positioning grooves are consistent with those of the positioning columns.

5. The injection mold for the earphone according to claim 1, wherein: the injection molding cavities are arranged in a matrix mode, and the heat dissipation water pipes are arranged below the injection molding parts in a U-shaped mode.

6. The injection mold for the earphone according to claim 1, wherein: and handles are arranged at two ends of the upper part of the movable die.

7. The injection mold for the earphone according to claim 1, wherein: the front end of the positioning column is conical, and the bottom of the positioning groove is conical.

8. The injection mold for the earphone according to claim 1, wherein: the heat dissipation water pipe, the fixed die and the movable die are all made of metal materials.

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