CN218593490U - Sound membrane forming die - Google Patents
Sound membrane forming die Download PDFInfo
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- CN218593490U CN218593490U CN202220880272.5U CN202220880272U CN218593490U CN 218593490 U CN218593490 U CN 218593490U CN 202220880272 U CN202220880272 U CN 202220880272U CN 218593490 U CN218593490 U CN 218593490U
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- forming die
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- annular groove
- sound membrane
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Abstract
The utility model discloses a sound membrane forming die, comprising a main body, be equipped with in the main part shaping district and with the shaping district links to each other goes the material district, it is equipped with the ring channel in the material district to go, the ring channel encircles the shaping district sets up. The utility model provides a sound membrane forming die adopts and sets up the ring channel that encircles the shaping district in going the material district and compensate the shared material of sound membrane material shaping dog collar to improve and be located to go the material and distinguish the shrink that the sound membrane material produced at hot pressing in-process, and then improve the whole shrink when the shaping of sound membrane material, effectively promote the roughness of finished product sound membrane in order to improve the quality of sound membrane, ensure that the miniature speaker product has good performance.
Description
Technical Field
The utility model relates to the technical field of mold, especially, relate to a sound membrane forming die.
Background
The micro-speaker is an important acoustic component in various electronic devices, and is widely applied to electronic products such as mobile phones, smart watches, tablet computers, hearing aids and the like. The micro-speaker produces sound through the vibration of the sound film, so the quality of the sound film directly affects the performance of the micro-speaker.
Currently, the following steps are generally adopted to prepare the sound film: firstly heating a mould, then placing a sound film material on the mould and pressing the sound film material tightly, introducing high-pressure gas while pressing the sound film material, keeping the pressure for a certain time, releasing the pressure and cooling the sound film material after the sound film material is formed, and finally taking the formed sound film material off the mould and removing redundant parts to obtain the sound film. The existing mould is generally provided with a forming area for enabling a sound film material to deform to form a corrugated ring and a material removing area connected with the forming area, and due to temperature change in the forming process and deformation of the sound film material at the forming area, the sound film material can generate excessive shrinkage to cause warping in the sound film material forming process, so that the flatness of a finished sound film is poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a voice diaphragm forming die capable of preventing a contraction phenomenon from occurring in a voice diaphragm forming process is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a sound membrane forming die, includes the main part, be equipped with in the main part the shaping district and with the material district that goes that the shaping district links to each other, it is equipped with the ring channel in the district to go the material, the ring channel encircles the setting of shaping district.
Furthermore, a folded ring forming part is arranged in the forming area, and the width of the annular groove is 0.5-1.0 time of the width of the folded ring forming part.
Furthermore, a plurality of notches are formed in the folded ring forming portion, and the notches are arranged on the folded ring forming portion at intervals.
Furthermore, still be equipped with the first line of shining on the main part, the first line of shining is located the region that the shaping district encloses.
Furthermore, a second drying line is further arranged in the material removing area and located on one side, far away from the forming area, of the annular groove and surrounds the annular groove.
Further, the edge of the second drying line is attached to the edge of the annular groove.
Furthermore, the annular groove comprises four straight line segments and four arc line segments, and the four straight line segments and the four arc line segments are arranged in a staggered mode and form an annular shape.
Furthermore, the straight line sections are continuous through grooves, and two opposite ends of each straight line section are respectively communicated with the two arc line sections in a one-to-one correspondence mode.
Further, the straight line section comprises a plurality of blind holes arranged at intervals, and the blind holes are arranged in a row along the length direction of the straight line section.
Further, the cross section of the annular groove is rectangular, triangular, trapezoidal or semicircular.
The beneficial effects of the utility model reside in that: the utility model provides a sound membrane forming die adopts and sets up the ring channel that encircles the shaping district in going the material district and compensate the shared material of sound membrane material shaping dog collar to improve and be located to go the material and distinguish the shrink that the sound membrane material produced at hot pressing in-process, and then improve the whole shrink when the shaping of sound membrane material, effectively promote the roughness of finished product sound membrane in order to improve the quality of sound membrane, ensure that the miniature speaker product has good performance.
Drawings
Fig. 1 is a schematic structural view of a sound diaphragm forming mold according to a first embodiment of the present invention;
fig. 2 is a top view of a sound diaphragm forming mold according to a first embodiment of the present invention;
fig. 3 is a front view of a sound diaphragm forming mold according to a first embodiment of the present invention;
fig. 4 is a schematic structural view of a sound diaphragm forming mold according to a second embodiment of the present invention;
fig. 5 is a top view of a sound diaphragm forming mold according to the second embodiment of the present invention.
Description of reference numerals:
1. a main body; 2. a molding zone; 3. a material removing area; 4. an annular groove; 41. a straight line segment; 42. an arc segment; 5. a folded ring forming part; 6. a recess; 7. a first sun print; 8. and (5) drying the patterns.
Detailed Description
In order to explain the technical contents, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 5, a sound diaphragm forming mold includes a main body 1, a forming area 2 and a material removing area 3 connected to the forming area 2 are disposed on the main body 1, an annular groove 4 is disposed in the material removing area 3, and the annular groove 4 is disposed around the forming area 2.
From the above description, the beneficial effects of the present invention are: the utility model provides a sound membrane forming die adopts and to compensate the shared material of sound membrane material shaping dog-ear in removing material 3 interior ring channel 4 that encircles shaping district 2 that sets up in the district to improve and be located the shrink that the sound membrane material produced in hot pressing in-process in the material district 3, and then improve the whole shrink when the shaping of sound membrane material, effectively promote the roughness of finished product sound membrane in order to improve the quality of sound membrane, ensure that miniature speaker product has good performance.
Furthermore, a folded ring forming part 5 is arranged in the forming area 2, and the width of the annular groove 4 is 0.5-1.0 time of the width of the folded ring forming part 5.
As can be seen from the above description, the width of the annular groove 4 is set to be 0.5-1.0 times the width of the edge forming portion 5 to ensure that the annular groove 4 can effectively compensate the material occupied by the sound film material when forming the edge.
Furthermore, a plurality of notches 6 are formed in the edge forming portion 5, and the plurality of notches 6 are arranged on the edge forming portion 5 at intervals.
As can be seen from the above description, the notches 6 are formed on the edge-forming portion 5 to form patterns on the formed sound membrane, thereby improving the strength of the sound membrane.
Further, still be equipped with first shining line 7 on the main part 1, first shining line 7 is located the region that molding area 2 encloses.
As can be seen from the above description, the first shining pattern 7 is arranged in the space surrounded by the forming region 2 on the main body 1, so that the pattern is formed on the surface of the sound film material after forming corresponding to the region of the first shining pattern 7, and the strength of the sound film material after forming is improved.
Further, go and still be equipped with the second in the material district 3 and shine line 8, the second shines line 8 and is located annular groove 4 keeps away from one side of shaping district 2 and encircles annular groove 4 sets up.
As can be seen from the above description, the second veins 8 are disposed in the material removing region 3, so that the surface of the sound film material after being formed forms veins corresponding to the region of the second veins 8, thereby enhancing the structural strength of the sound film material after being formed.
Further, the edge of the second drying line 8 is attached to the edge of the annular groove 4.
It can be known from the above description that the second of going in the material district 3 shines line 8 and ring channel 4 laminating setting, does benefit to further to improve the shrink that the sound membrane material produced in going the material district 3, and then promotes sound membrane product quality.
Further, the annular groove 4 includes four straight line segments 41 and four arc line segments 42, and the four straight line segments 41 and the four arc line segments 42 are staggered and form an annular shape.
Further, the straight line segments 41 are continuous through grooves, and two opposite ends of each straight line segment 41 are respectively in one-to-one correspondence communication with the two arc line segments 42.
As can be seen from the above description, the straight line segments 41 of the annular groove 4 are provided as continuous through grooves, and each straight line segment 41 is communicated with the arc line segments 42 at two ends of the straight line segment 41, so that the annular groove 4 is conveniently formed on the main body 1, and the sound diaphragm forming mold is conveniently manufactured.
Further, the straight line section 41 comprises a plurality of blind holes arranged at intervals, and the blind holes are arranged in a row along the length direction of the straight line section 41.
As can be seen from the above description, the straight line segment 41 of the annular groove 4 is composed of a plurality of blind holes arranged at intervals, and the blind holes are arranged in a row, and the annular groove 4 can be adjusted by adjusting the density of the blind holes to improve the effect of sound diaphragm contraction, so that the performance of the sound diaphragm forming mold is matched with the properties of the sound diaphragm material.
Further, the cross section of the annular groove 4 is rectangular, triangular, trapezoidal or semicircular.
Example one
Referring to fig. 1 to fig. 3, a first embodiment of the present invention is: a sound film forming die is used for abutting against a sound film material in the preparation process of a sound film to drive the sound film material to deform so as to obtain the sound film with a preset shape.
As shown in fig. 1 and 3, the sound diaphragm forming mold includes a main body 1, the upper surface of the main body 1 is provided with a forming area 2 and a material removing area 3, which are connected, the forming area 2 and the material removing area 3 are both arranged on the main body 1 in a protruding manner, the sound diaphragm material is pressed on the upper surface of the main body 1 in the forming process, and the forming area 2 is used for abutting against the sound diaphragm material under a high-temperature and high-pressure environment to enable the sound diaphragm material to generate an expected deformation, so as to obtain a sound diaphragm with a target shape.
It is specific, lie in order to improve the hot pressing process remove the shrink that the material produced in the district 3 sound membrane material, it is equipped with ring channel 4 just to remove in the material district 3 the ring channel 4 encircles the shaping district 2 sets up, shared material when ring channel 4 is used for compensating the dog-ear on the sound membrane material shaping sound membrane to improve the roughness behind the sound membrane material shaping, and then promote the quality of sound membrane, ensure that the miniature speaker product has good performance.
Referring to fig. 2, a corrugated rim forming portion 5 for driving the sound diaphragm material to deform and form a corrugated rim is disposed in the forming region 2, the corrugated rim forming portion 5 and the annular groove 4 are disposed at an interval, and the width of the annular groove 4 is 0.5-1.0 times of the width of the corrugated rim forming portion 5, so that the annular groove 4 can effectively compensate the material occupied by the sound diaphragm material when the corrugated rim is formed,
in detail, in this embodiment, the annular groove 4 includes four straight line segments 41 and four arc segments 42, the four straight line segments 41 and the four arc segments 42 are staggered and surround to form an annular shape, the straight line segments 41 are continuous through grooves, and two opposite ends of each straight line segment 41 are respectively communicated with the two arc segments 42 in a one-to-one correspondence manner, so that the annular groove 4 is integrally formed in a continuous annular shape, and the annular groove 4 is conveniently processed on the main body 1, thereby facilitating the manufacturing of the sound diaphragm forming mold. In other possible embodiments, the straight line section 41 may further include a plurality of blind holes arranged at intervals, the blind holes are arranged in a row along the length direction of the straight line section 41, and the annular groove 4 may be adjusted by adjusting the density of the blind holes in each straight line section 41 to improve the effect of sound diaphragm contraction, so that the performance of the sound diaphragm forming mold matches the properties of the sound diaphragm material.
Optionally, the cross section of the annular groove 4 is rectangular, triangular, trapezoidal or semicircular, and the shape of the cross section of the annular groove 4 can be selected according to actual production requirements, so that the sound membrane formed by hot-pressing the sound membrane material has good flatness.
Referring to fig. 1 and 2, the corrugated rim forming portion 5 is further provided with a plurality of notches 6, the plurality of notches 6 are arranged on the corrugated rim forming portion 5 at intervals along the length direction of the corrugated rim forming portion 5, the notches 6 are used for extruding the sound membrane material to form patterns on the sound membrane material in the sound membrane material forming process, and the overall structural strength of the sound membrane can be improved by forming the patterns on the sound membrane, so that the quality of the manufactured sound membrane is further improved.
Example two
Referring to fig. 4 and 5, the second embodiment of the present invention provides another technical solution for the structure of the main body 1 based on the first embodiment, and the difference from the first embodiment is only the difference between the structure of the main body 1 and the second embodiment.
As shown in fig. 4 and 5, in order to further enhance the strength of the sound film formed by the sound film forming mold, the main body 1 is provided with a first shining pattern 7 and a second shining pattern 8, wherein the first shining pattern 7 is located in the region surrounded by the forming region 2, the second shining pattern 8 is located in the material removing region 3, the second shining pattern 8 is located on one side of the annular groove 4 away from the forming region 2 and is arranged around the annular groove 4, when the sound film material is pressed on the sound film forming mold, the first shining pattern 7 and the second shining pattern 8 respectively abut against different positions of the sound film material to form patterns on the corresponding region of the sound film material, so that the adhesive force between the formed sound film material and the sound film forming mold is reduced, the sound film material is convenient to be demolded, and the strength of the formed sound film material can also be enhanced, so that the sound film structure obtained by cutting off the redundant material meets the use requirements.
In detail, in this embodiment, the edge of the second drying line 8 is attached to the edge of the annular groove 4, so that the second drying line 8 and the annular groove 4 are continuously disposed in the material removing region 3, and the contraction of the sound film material in the material removing region 3 can be further improved by the combined action of the second drying line 8 and the annular groove 4, thereby improving the flatness of the finished sound film.
As shown in fig. 5, optionally, the first sun print 7 and the second sun print 8 are both in a grid shape, so that a grid-shaped texture is formed on the formed sound membrane corresponding to the first sun print 7 and the second sun print 8.
To sum up, the utility model provides a sound membrane forming die adopts and sets up the ring channel that encircles the shaping district in the material district that goes and compensates the material that sound membrane material shaping dog-ear occupies to improve the shrink that sound membrane material produced in the hot pressing process that lies in the material district that goes, and then improve the whole shrink when shaping of sound membrane material, effectively promote the roughness of finished product sound membrane in order to improve the quality of sound membrane, ensure that miniature speaker product has good performance; still set up the first line and the second of shining in sound membrane forming die's the main part and shone the line, the first line and the second of shining is shone the line and is used for presetting regional formation line on the sound membrane material, and then reduces the bonding force between the sound membrane material that the shaping was accomplished and the sound membrane forming die so that the sound membrane material drawing of patterns that the shaping was accomplished, and the line that forms simultaneously on the sound membrane material can also promote the structural strength of finished product sound membrane, ensures that the performance of finished product sound membrane satisfies the user demand.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a sound membrane forming die, includes the main part, be equipped with in the main part shaping district and with the material district that goes that the shaping district links to each other, its characterized in that: an annular groove is formed in the material removing area and surrounds the forming area.
2. The voice diaphragm forming die according to claim 1, wherein: the forming area is internally provided with a folded ring forming part, and the width of the annular groove is 0.5-1.0 time of that of the folded ring forming part.
3. The voice diaphragm forming die according to claim 2, wherein: the folded ring forming part is provided with a plurality of notches, and the notches are arranged on the folded ring forming part at intervals.
4. The voice diaphragm forming die according to claim 1, wherein: still be equipped with the first line that shines on the main part, first line that shines is located the region that the shaping district encloses.
5. The voice diaphragm forming die according to claim 1, wherein: go and still be equipped with the second in the material district and shine the line, the second shines the line and is located the ring channel is kept away from one side in shaping district and is encircleed the ring channel setting.
6. The voice diaphragm forming die according to claim 5, wherein: the edge of the second drying line is attached to the edge of the annular groove.
7. The voice diaphragm forming die according to claim 1, wherein: the annular groove comprises four straight line sections and four arc line sections, and the four straight line sections and the four arc line sections are arranged in a staggered mode and enclose an annular shape.
8. The voice diaphragm forming die of claim 7, wherein: the straight line sections are continuous through grooves, and two opposite ends of each straight line section are respectively communicated with the two arc line sections in a one-to-one correspondence mode.
9. The voice diaphragm forming die of claim 7, wherein: the straight line section comprises a plurality of blind holes arranged at intervals, and the blind holes are arranged in a row along the length direction of the straight line section.
10. The voice diaphragm forming die of claim 1, wherein: the cross section of the annular groove is rectangular, triangular, trapezoidal or semicircular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220880272.5U CN218593490U (en) | 2022-04-15 | 2022-04-15 | Sound membrane forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220880272.5U CN218593490U (en) | 2022-04-15 | 2022-04-15 | Sound membrane forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218593490U true CN218593490U (en) | 2023-03-10 |
Family
ID=85393823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220880272.5U Active CN218593490U (en) | 2022-04-15 | 2022-04-15 | Sound membrane forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218593490U (en) |
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2022
- 2022-04-15 CN CN202220880272.5U patent/CN218593490U/en active Active
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