CN215359640U - One-step forming die for plastic earphones - Google Patents
One-step forming die for plastic earphones Download PDFInfo
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- CN215359640U CN215359640U CN202121634369.XU CN202121634369U CN215359640U CN 215359640 U CN215359640 U CN 215359640U CN 202121634369 U CN202121634369 U CN 202121634369U CN 215359640 U CN215359640 U CN 215359640U
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Abstract
The utility model discloses a one-step forming die for a plastic earphone, which comprises a fixed die and a movable die, wherein the fixed die is connected with an injection molding device, a sliding block is arranged on the fixed die in a sliding manner, the sliding block is provided with a shaping column matched with an inner cavity of a sound channel part, the movable die can move between a position close to the fixed die and a position far away from the fixed die, and the movable die is provided with an arc-shaped block matched with a shell. In concrete work, the movable mould moves towards the direction of the fixed mould, the sliding block of the fixed mould slides under the pressure action of the movable mould, simultaneously, the first sloping block and the second sloping block of the movable mould are close to and enclose a fixed mould cavity and an injection molding opening under the pressure of the fixed mould, and the fixed mould cavity is inserted into the fixed mould cavity until the first arc-shaped surface of the arc-shaped block is attached to the second arc-shaped surface of the fixed mould column, then the injection molding machine injects the injection molding towards the injection molding cavity in sequence, the shell and the sound channel part are integrally formed, so that the structure between the shell and the sound channel part is more stable, and the situation of scraping flowers or damaging the shell can be effectively reduced.
Description
Technical Field
The utility model relates to the field of earphone molds, in particular to a plastic earphone one-step forming mold.
Background
The earphone is a pair of conversion units which receive the electric signals from the media player or receiver and convert them into audible sound waves by using a speaker near the ear. From the development of the whole audio industry, the wireless headset still is a new thing, the development time is not long, at present, the user demand is continuously improved, the expected value of the wireless headset of the user is also improved, and the new examination is provided for the industry.
In the plastic earphone, a part of the shell generally comprises an arc-shaped shell and a sound channel part arranged on the shell, the sound channel part is generally in a tube shape, the shell and the sound channel part are generally molded in the existing molding die, and then the sound channel part is fixed on the shell, but the structural stability is poor, and the sound channel part is easily damaged by force. Of course, there are also dies integrally formed, but the existing dies have a complicated structure during the forming process, and the case or the sound channel part is easily scratched during the demolding process, even the sound channel part is damaged, and the product yield is low.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a plastic earphone one-step forming die, which aims to integrally form a shell and a sound channel part through the die, so that the structure between the shell and the sound channel part is more stable, and the condition of scratching or damaging the shell can be effectively reduced.
In order to achieve the above object, the present invention provides a plastic earphone one-step forming mold, including:
the fixed die is connected with the injection molding device, a sliding block is slidably mounted on the fixed die, and the sliding block is provided with a shaping column matched with the inner cavity of the sound channel part;
the movable mould, the movable mould can move between the position of being close to the cover half and the position of keeping away from the cover half, the movable mould is equipped with the arc piece that suits with the casing, when movable mould and cover half compound die, the cover half post inclines mutually with the arc piece, and contacts each other.
Preferably, the arc piece is equipped with first arcwall face, the sizing column is equipped with first arcwall face matched with second arcwall face.
Preferably, the cover half is equipped with the guide post that the slope set up, the sliding block is equipped with the guiding hole with guide post matched with.
Preferably, one side of the sliding block, which is far away from the molding column, is provided with an inclined plane part, the movable mold is provided with an inclined plane groove matched with the inclined plane part, and when the fixed mold and the movable mold are closed, the inclined plane part can be inserted into the inclined plane groove.
Preferably, the fixed die is provided with an injection molding opening, when the die is closed, the injection molding opening is adjacent to the shaping column, the sound channel part is provided with a clamping groove, and the injection molding opening is located in the clamping groove.
Preferably: the arc block is provided with a positioning lug, and the positioning lug can form a sound hole in the shell.
Preferably, the shaping column is arranged in a step shape, and the movable mold is provided with a shaping hole matched with the shaping column.
Preferably, the arc block is provided with a thimble which is installed in a sliding manner, and the thimble can eject the shell positioned on the arc block.
Preferably, the opposite end surfaces of the fixed die and the movable die are respectively provided with a limiting column and a limiting hole.
Preferably, the movable die comprises a base and a die holder, and a buffer spring is arranged between the base and the die holder; the die holder is provided with a first inclined block and a second inclined block which slide relatively, the die holder is provided with a first inclined column and a second inclined column, the first inclined block and the second inclined block are respectively arranged on the first inclined column and the second inclined column, and the first inclined block and the second inclined block can move between a close position and a far position; when the first inclined block and the second inclined block are located at the close positions, the first inclined block and the second inclined block surround the shaping hole and the injection molding opening.
In the technical scheme, in the specific work, the movable die moves towards the fixed die, the sliding block of the fixed die slides under the pressure action of the movable die, the first inclined block and the second inclined block of the movable die are close to each other under the pressure of the fixed die and surround the fixed die cavity and the injection molding opening, the fixed die cavity is inserted into the fixed die cavity until the first arc-shaped surface of the arc-shaped block is attached to the second arc-shaped surface of the fixed die, and then the injection molding machine performs injection molding towards the injection molding cavity in sequence; during the die sinking, the movable mould moves towards the direction of keeping away from the cover half, and first sloping block and second sloping block move towards the direction of keeping away from mutually simultaneously, and the sliding block also withdraws from the inner chamber of sound channel portion, and the earphone is placed on the arc piece this moment, can take out it through the thimble, and casing and sound channel portion an organic whole are formed, make between casing and the sound channel portion structure more stable, and can effectively reduce the condition of scraping the flower or damaging the casing.
Drawings
FIG. 1 is a partial cross-sectional view of the present invention;
FIG. 2 is a schematic view of the first swash block and the second swash block being engaged with each other;
FIG. 3 is a schematic view of the arc block and the shaping column;
fig. 4 is a schematic view of the first swash block and the second swash block in cooperation.
In the figure, 1 is a fixed die, 11 is a sliding block, 12 is a shaping column, 2 is a movable die, 21 is an arc-shaped block, 31 is a guide column, 32 is a guide hole, 41 is an inclined plane part, 51 is an injection opening, 52 is a shaping hole, 53 is an ejector pin, 6 is a buffer spring, 61 is a first inclined block, 62 is a second inclined block, 7 is a positioning lug, 100 is a shell, and 101 is a sound channel part.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, 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.
It should be noted that if directional indications (such as … …, which is up, down, left, right, front, back, top, bottom, inner, outer, vertical, transverse, longitudinal, counterclockwise, clockwise, circumferential, radial, axial) are provided in the embodiments of the present invention, the directional indications are only used for explaining the relative position relationship, motion condition, etc. of the components at a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first" or "second", etc. in the embodiments of the present invention, the description of "first" or "second", etc. is for descriptive purposes only and is 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" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 4, a plastic earphone one-time molding die includes:
the fixed mold 1 is connected with the injection molding device, a sliding block 11 is slidably mounted on the fixed mold 1, and the sliding block 11 is provided with a shaping column 12 which is matched with the inner cavity of the sound channel part 101;
the movable die 2 can move between a position close to the fixed die 1 and a position far away from the fixed die 1, the movable die 2 is provided with an arc-shaped block 21 matched with the shell 100, and when the movable die 2 and the fixed die 1 are matched, the fixed column 12 is inclined to the arc-shaped block 21 and is contacted with each other.
In the specific work, the movable die 2 moves towards the fixed die 1, the sliding block 11 of the fixed die 1 slides under the pressure action of the movable die 2, meanwhile, the first inclined block 61 and the second inclined block 62 of the movable die 2 are close to each other under the pressure action of the fixed die 1 and enclose a fixed die cavity and an injection molding opening 51, the fixed die cavity is inserted into the fixed die cavity until the first arc-shaped surface of the arc-shaped block 21 is attached to the second arc-shaped surface of the fixed die 12, and then the injection molding machine performs injection molding towards the injection molding cavity in sequence; when the die is opened, the movable die 2 moves towards the direction away from the fixed die 1, meanwhile, the first inclined block 61 and the second inclined block 62 move towards the direction away from each other, the sliding block 11 also exits from the inner cavity of the sound channel part 101, at the moment, the earphone is placed on the arc-shaped block 21 and can be taken out through the ejector pins 53, the shell 100 and the sound channel part 101 are integrally formed, the structure between the shell 100 and the sound channel part 101 is more stable, and the situation that the shell 100 is scratched or damaged can be effectively reduced.
In the embodiment of the present invention, the arc block 21 has a first arc surface, and the shaped column 12 has a second arc surface matching with the first arc surface, that is, the joint end of the sound channel part 101 and the casing 100 is formed by the joint of the first arc surface and the second arc surface.
In the embodiment of the utility model, the fixed die 1 is provided with the guide posts 31 which are obliquely arranged, and the sliding block 11 is provided with the guide holes 32 which are matched with the guide posts 31, namely, the sliding block 11 can obliquely slide along the guide posts 31.
In the embodiment of the present invention, a side of the sliding block 11 away from the shaped pillar 12 is provided with an inclined surface portion 41, the movable mold 2 is provided with an inclined surface groove matching with the inclined surface portion 41, and when the fixed mold 1 and the movable mold 2 are closed, the inclined surface portion 41 can be inserted into the inclined surface groove.
In the embodiment of the utility model, the fixed die 1 is provided with the injection port 51, when the die is closed, the injection port 51 is arranged adjacent to the shaping column 12, the sound channel part 101 is provided with a clamping groove, and the injection port 51 is positioned in the clamping groove.
In the embodiment of the present invention, the arc-shaped block 21 is provided with a positioning protrusion 7, and the positioning protrusion 7 can form a sound hole in the housing 100.
In the embodiment of the present invention, the shape-fixing pillar 12 is arranged in a step shape, wherein the movable mold 2 is provided with a shape-fixing hole 52 for inserting the shape-fixing pillar 12, and the sound channel cavity can be formed by arranging the shape-fixing pillar 12 in a step shape.
In the embodiment of the present invention, the arc block 21 is provided with the thimble 53 installed in a sliding manner, the thimble 53 can eject the shell 100 located in the arc block 21, when the movable mold 2 and the fixed mold 1 are opened, the earphone shell 100 is clamped on the arc block 21, and the earphone shell 100 can be easily taken out through the thimble 53.
In the embodiment of the utility model, the opposite end surfaces of the fixed die 1 and the movable die 2 are respectively provided with the limiting column and the limiting hole, the matching of the limiting column and the limiting hole can ensure that the die assembly of the fixed die 1 and the movable die 2 is more fit, and the condition of die dislocation and the defect of products are avoided.
In the embodiment of the utility model, the movable die 2 comprises a base and a die holder, the buffer spring 6 is arranged between the base and the die holder, and the base and the die holder are generally relatively movable in a specific structure, so that the buffer spring 6 arranged between the base and the die holder can play a role in buffering when die assembly is carried out, and meanwhile, when die opening is carried out, the phenomenon that the product is suddenly ejected out due to the influence of vibration on the molding of the product is avoided, and a better demoulding effect can also be played.
In a specific embodiment, the shaping cavity is disposed on the die holder, and the die holder is also disposed in an inclined manner to facilitate exiting, or the die holder is disposed in two symmetrical halves to facilitate demolding of the sound channel portion 101. Of course, the prior art may also be adopted, and the description is omitted here.
In a specific embodiment, the die holder is provided with a first inclined block 61 and a second inclined block 62 which slide relatively, the die holder is provided with a first inclined column and a second inclined column, the first inclined block 61 and the second inclined block 62 are respectively installed on the first inclined column and the second inclined column, and the first inclined block 61 and the second inclined block 62 can move between a close position and a far position; when located in close proximity, the first and second ramps 61, 51 enclose the shaped cavity 52 and the injection port.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a plastics earphone one shot forming mould which characterized in that includes:
the fixed die is connected with the injection molding device, a sliding block is slidably mounted on the fixed die, and the sliding block is provided with a shaping column matched with the inner cavity of the sound channel part;
the movable mould, the movable mould can move between the position of being close to the cover half and the position of keeping away from the cover half, the movable mould is equipped with the arc piece that suits with the casing, when movable mould and cover half compound die, the cover half post inclines mutually with the arc piece, and contacts each other.
2. The plastic earphone one-shot forming mold of claim 1, wherein: the arc block is provided with a first arc surface, and the shaping column is provided with a second arc surface matched with the first arc surface.
3. The plastic earphone one-shot forming mold of claim 1, wherein: the cover half is equipped with the guide post that the slope set up, the sliding block is equipped with the guiding hole with guide post matched with.
4. The plastic earphone one-shot forming mold of claim 1, wherein: one side of the sliding block, which is far away from the fixed mold column, is provided with an inclined plane part, the movable mold is provided with an inclined plane groove matched with the inclined plane part, and when the fixed mold and the movable mold are closed, the inclined plane part can be inserted in the inclined plane groove.
5. The plastic earphone one-shot forming mold of claim 1, wherein: the cover half is equipped with the mouth of moulding plastics, and when the compound die state, the mouth of moulding plastics sets up with the design post is adjacent, sound channel portion is equipped with the draw-in groove, and the mouth of moulding plastics is located the draw-in groove position.
6. The plastic earphone one-shot forming mold of claim 5, wherein: the arc block is provided with a positioning lug, and the positioning lug can form a sound hole in the shell.
7. The plastic earphone one-shot forming mold of claim 6, wherein: the shaping column is arranged in a ladder shape, and the movable mold is provided with a shaping hole matched with the shaping column.
8. The plastic earphone one-shot forming mold of claim 1, wherein: the arc block is provided with a thimble which is installed in a sliding mode, and the thimble can eject the shell located on the arc block.
9. The plastic earphone one-shot forming mold of claim 1, wherein: and the opposite end surfaces of the fixed die and the movable die are respectively provided with a limiting column and a limiting hole.
10. The plastic earphone one-shot forming mold of claim 7, wherein: the movable die comprises a base and a die holder, and a buffer spring is arranged between the base and the die holder; the die holder is provided with a first inclined block and a second inclined block which slide relatively, the die holder is provided with a first inclined column and a second inclined column, the first inclined block and the second inclined block are respectively arranged on the first inclined column and the second inclined column, and the first inclined block and the second inclined block can move between a close position and a far position; when the first inclined block and the second inclined block are located at the close positions, the first inclined block and the second inclined block surround the shaping hole and the injection molding opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121634369.XU CN215359640U (en) | 2021-07-17 | 2021-07-17 | One-step forming die for plastic earphones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121634369.XU CN215359640U (en) | 2021-07-17 | 2021-07-17 | One-step forming die for plastic earphones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215359640U true CN215359640U (en) | 2021-12-31 |
Family
ID=79610020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121634369.XU Active CN215359640U (en) | 2021-07-17 | 2021-07-17 | One-step forming die for plastic earphones |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215359640U (en) |
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2021
- 2021-07-17 CN CN202121634369.XU patent/CN215359640U/en active Active
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