CN220359369U - Vibrating diaphragm forming die - Google Patents
Vibrating diaphragm forming die Download PDFInfo
- Publication number
- CN220359369U CN220359369U CN202321939385.9U CN202321939385U CN220359369U CN 220359369 U CN220359369 U CN 220359369U CN 202321939385 U CN202321939385 U CN 202321939385U CN 220359369 U CN220359369 U CN 220359369U
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- 239000012528 membrane Substances 0.000 description 26
- 238000000465 moulding Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 11
- 230000008602 contraction Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The utility model discloses a vibrating diaphragm forming die which comprises a die holder, wherein a first groove, a forming groove and a second groove which are sequentially distributed from inside to outside are formed in one side of the die holder, and the first groove, the forming groove and the second groove are annular grooves. When the diaphragm forming die is used for preparing the formed rubber diaphragm, the rubber diaphragm can form the folded ring part corresponding to the forming groove, and the inner side and the outer side of the folded ring part of the rubber diaphragm respectively form the first auxiliary folded ring and the second auxiliary folded ring corresponding to the first groove and the second groove, so that the first auxiliary folded ring and the second auxiliary folded ring can help the folded ring part to release stress after the rubber diaphragm is formed, and the stress shrinkage deformation of the folded ring part is avoided, and therefore, the diaphragm forming die can be used for improving the yield of rubber diaphragm products.
Description
Technical Field
The utility model relates to the technical field of speakers, in particular to a vibrating diaphragm forming die.
Background
With the development of electronic technology, mobile terminal devices such as mobile phones and tablet computers enrich the lives of people, and speakers play an indispensable role as audio devices in mobile terminal devices. In order to improve sound quality of the existing loudspeaker, a rubber vibrating diaphragm with better elasticity is generally used as the vibrating diaphragm.
However, the inventor researches that the rubber diaphragm is easy to fold and deform after being molded, and when the rubber diaphragm is molded by using the existing diaphragm molding die, the rubber diaphragm can shrink and deform under stress, so that the acoustic performance of the rubber diaphragm is affected, the size of the rubber diaphragm is not up to standard, and the yield of the rubber diaphragm is low. Therefore, there is a need to design a new diaphragm forming mold to solve the above-mentioned problems in the prior art.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the vibration film forming die is used for solving the problem that the rubber vibration film can shrink and deform under stress when the rubber vibration film is formed and prepared by using the conventional vibration film forming die.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a vibrating diaphragm forming die, includes the die holder, be equipped with first recess, shaping groove and the second recess that from inside to outside arranges in proper order on one side of die holder, first recess shaping groove with the second recess is the ring channel.
Further, the die holder is provided with an exhaust hole.
Further, the exhaust hole comprises a first air hole, a first forming part is further arranged on the die holder, the first forming part is arranged in the annular area of the first groove, and the first air hole is arranged on the first forming part.
Further, the exhaust hole further comprises a second air hole and a third air hole, the second air hole is arranged in the first groove, and the third air hole is arranged in the second groove.
Further, the distance between the exhaust hole and the forming groove is greater than or equal to 0.7mm.
Further, a second molding part is arranged between the molding groove and the first groove.
Further, a third molding part is arranged between the molding groove and the second groove.
Further, the width of the first groove and the width of the second groove are at least 1.5 times the width of the forming groove.
Further, the interval between the outer contour of the first groove and the inner contour of the forming groove is 0.5-1 mm.
Further, the interval between the inner contour of the second groove and the outer contour of the forming groove is 0.5-1 mm.
The utility model has the beneficial effects that: the vibrating diaphragm forming die provided by the utility model is optimally designed according to the structure of the vibrating diaphragm forming die, and particularly a first groove and a second groove are respectively arranged on the inner side and the outer side of a self forming groove; when the rubber vibrating diaphragm is molded, the rubber vibrating diaphragm can form a first auxiliary folding ring and a second auxiliary folding ring under the action of the first groove and the second groove, and at the moment, the stress of the rubber vibrating diaphragm can be released through the first auxiliary folding ring and the second auxiliary folding ring so as to avoid deformation of a folding ring part between the first auxiliary folding ring and the second auxiliary folding ring; the first auxiliary folding ring and the second auxiliary folding ring can be cut off in the subsequent processing process, and the folding ring part is reserved, so that the molding quality and the processing yield of the rubber vibrating diaphragm are improved.
In summary, the diaphragm forming die can improve the problems of distortion, poor acoustic performance, substandard size and the like of the rubber diaphragm caused by the deformation of the folding ring, thereby improving the yield of the rubber diaphragm and reducing the manufacturing cost of the rubber diaphragm.
Drawings
Fig. 1 is a schematic structural diagram of a vibrating diaphragm forming mold according to an embodiment of the present utility model at a viewing angle.
Fig. 2 is a schematic structural diagram of a diaphragm forming mold according to the present utility model at another view angle in an embodiment.
Description of the reference numerals:
1. a die holder; 2. a first groove; 3. a forming groove; 4. a second groove; 5. an exhaust hole; 51. a first air hole; 52. a second air hole; 53. a third air hole; 6. a first molding part; 7. a second molding part; 8. and a third molding part.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 2, a vibrating diaphragm forming die includes a die holder 1, a first groove 2, a forming groove 3 and a second groove 4 sequentially arranged from inside to outside are disposed on one side of the die holder 1, and the first groove 2, the forming groove 3 and the second groove 4 are annular grooves.
The structural principle of the utility model is briefly described as follows: in practical application, an operator can control the side surface of the diaphragm forming die to be coated with the rubber membrane material, the rubber membrane material can be formed according to the shape of the diaphragm forming die to form the rubber diaphragm, and the formed rubber diaphragm corresponds to the annular first groove 2, the annular forming groove 3 and the annular second groove 4 to form a first auxiliary folding ring, a folding ring part and a second auxiliary folding ring respectively;
because the elasticity of the rubber material product is large, the rubber vibrating diaphragm can shrink after being taken down from the vibrating diaphragm forming die, and the rubber vibrating diaphragm formed by the vibrating diaphragm forming die provided by the utility model has the advantages that the first auxiliary folding ring and the second auxiliary folding ring are respectively formed on the inner side and the outer side of the folding ring part; the first auxiliary folding ring can help the rubber vibrating diaphragm to release the contraction stress of the inner side of the folding ring part, and the first auxiliary folding ring can absorb the deformation of the inner side of the folding ring; the second auxiliary folding ring can help the rubber vibrating diaphragm to release the contraction stress at the outer side of the folding ring part, and the second auxiliary folding ring can absorb the deformation of the outer side of the folding ring; therefore, when the rubber vibrating diaphragm is in stress shrinkage, the folded ring part cannot generate stress shrinkage deformation under the action of the first auxiliary folded ring and the second auxiliary folded ring;
finally, the first auxiliary folding ring and the second auxiliary folding ring of the rubber vibrating diaphragm can be cut off, the folding ring part is reserved, the inner side of the folding ring part can be connected with a finished membrane in the subsequent processing procedure, and the outer side of the folding ring part can be adhered to a basin frame, so that the rubber vibrating diaphragm is processed into a complete vibrating diaphragm part.
In some preferred embodiments of the present utility model, the outer contour of the second groove 4 may be matched with the shape of the finished product module, and in a subsequent process, the second auxiliary folding ring may be cut along the outer contour of the second auxiliary folding ring, so that a middle hole which can be just adapted to the finished product membrane may be cut on the rubber membrane, and the accuracy of processing the rubber membrane may be improved.
In addition, the shapes of the first groove 2, the molding groove 3 and the second groove 4 may be, but are not limited to: in order to make the first auxiliary ring and the second auxiliary ring on the rubber diaphragm more easily release the stress of the ring, the shape of the first groove 2 and the shape of the second groove 4 are set corresponding to the shape of the forming groove 3 in other preferred embodiments of the present utility model.
From the above description, the beneficial effects of the utility model are as follows: when the diaphragm forming die is used for preparing the formed rubber diaphragm, the ring folding part of the rubber diaphragm can be prevented from shrinking and deforming, and the acoustic performance of the rubber diaphragm is prevented from reaching the standard and the product size is prevented from reaching the standard, so that the diaphragm forming die can improve the yield of the rubber diaphragm, and the diaphragm forming die can reduce the production cost of the rubber diaphragm.
Further, the die holder 1 is provided with an exhaust hole 5.
In some preferred embodiments of the present utility model, the die holder 1 may be provided with an air vent 5, and the air vent 5 may exhaust air between the rubber membrane material and the die holder 1, so as to reduce the probability of air trapping between the rubber membrane material and the die holder 1, and correspondingly improve the yield of rubber diaphragm molding.
Further, the exhaust hole 5 includes a first air hole 51, the die holder 1 is further provided with a first molding portion 6, the first molding portion 6 is disposed in the annular region of the first groove 2, and the first air hole 51 is disposed on the first molding portion 6.
In some preferred embodiments of the present utility model, the first groove 2 is an annular groove, and then a first forming portion 6 (as shown in fig. 1) is formed in an area within the inner contour of the first groove 2, and a first air hole 51 is formed in the first forming portion 6, and the first air hole 51 can exhaust air between the rubber membrane material and the first forming portion 6;
in addition, the number of the first air holes 51 may be specifically set according to actual application requirements;
furthermore, in some more preferred embodiments of the present utility model, when the number of the first air holes 51 is set to a plurality, the plurality of first air holes 51 may be arranged in a matrix on the first molding part 6.
Further, the exhaust hole 5 further includes a second air hole 52 and a third air hole 53, the second air hole 52 is disposed in the first groove 2, and the third air hole 53 is disposed in the second groove 4.
In some preferred embodiments of the present utility model, the second air hole 52 can exhaust the air between the first groove 2 and the rubber membrane, and the third air hole 53 can exhaust the air between the second groove 4 and the rubber membrane, so as to reduce the probability of trapping air between the rubber membrane and the first groove 2 and the second groove 4, thereby avoiding the problem that the first auxiliary ring and the second auxiliary ring of the rubber diaphragm cannot be well formed and the ring portion is deformed by shrinkage.
Further, the distance between the exhaust hole 5 and the forming groove 3 is greater than or equal to 0.7mm.
In some preferred embodiments of the present utility model, in order to ensure that the formed rubber diaphragm can have a sufficient bonding area of the dome and a sufficient bonding area of the frame, the vent hole 5 and the forming groove 3 need to be spaced at least by a distance of 0.7mm, so that the bonding effect of the formed rubber diaphragm, the dome and the frame is prevented from being affected by the vent hole 5 of the diaphragm forming die, and the yield of the diaphragm device is ensured.
Further, a second molding part 7 is provided between the molding groove 3 and the first groove 2.
As can be seen from the above description, after the rubber membrane material is coated on the membrane forming mold for forming, the rubber membrane corresponding to the second forming portion 7 may form a dome bonding portion, so as to ensure the bonding stability of the rubber membrane and the dome.
Further, a third molding part 8 is provided between the molding groove 3 and the second groove 4.
As can be seen from the above description, after the rubber membrane material is coated on the membrane forming mold for forming, the rubber membrane corresponding to the third forming portion 8 can form a frame bonding portion, so as to ensure the bonding stability of the rubber membrane and the frame.
Further, the width of the first groove 2 and the width of the second groove 4 are at least 1.5 times the width of the forming groove 3.
In some preferred embodiments of the present utility model, in order to ensure that the first auxiliary folding ring and the second auxiliary folding ring of the rubber diaphragm effectively help the folding ring portion absorb the shrinkage deformation amount of the rubber diaphragm, the width of the first auxiliary folding ring and the width of the second auxiliary folding ring are both at least 1.5 times the width of the folding ring portion, and in order to achieve the above effect, the width of the first groove 2 and the width of the second groove 4 may be set to be at least 1.5 times the width of the forming groove 3, respectively.
Further, the interval between the outer contour of the first groove 2 and the inner contour of the forming groove 3 is 0.5-1 mm.
As is apparent from the above description, setting the interval between the outer contour of the first groove 2 and the inner contour of the forming groove 3 to be 0.5mm to 1mm can facilitate the first auxiliary folder of the formed rubber diaphragm to release the shrinkage stress of the folder.
Further, the interval between the inner contour of the second groove 4 and the outer contour of the forming groove 3 is 0.5-1 mm.
As is clear from the above description, the interval between the inner contour of the second groove 4 and the outer contour of the forming groove 3 is set to be 0.5mm to 1mm, which can facilitate the second auxiliary ring of the formed rubber diaphragm to release the contraction stress of the ring portion.
Example 1
Referring to fig. 1 to 2, a first embodiment of the present utility model is as follows: the vibrating diaphragm forming die comprises a die holder 1, wherein a first forming part 6, a first groove 2, a forming groove 3 and a second groove 4 which are sequentially arranged from inside to outside are arranged on one side surface of the die holder 1, the first groove 2, the forming groove 3 and the second groove 4 are respectively annular grooves in rectangular shapes, a second forming part 7 is formed between the first groove 2 and the forming groove 3, a third forming part 8 is formed between the second groove 4 and the forming groove 3, and the shape of the forming groove 3 is matched with that of a rubber vibrating diaphragm;
when the diaphragm forming die is used for forming the rubber diaphragm, the rubber diaphragm is required to be coated on the surface of the die holder 1, and then the rubber diaphragm is formed according to the shape of the diaphragm forming die, wherein the rubber diaphragm corresponds to the first groove 2, the forming groove 3 and the second groove 4 to form a first auxiliary folding ring, a folding ring part and a second auxiliary folding ring respectively, the first auxiliary folding ring can help the rubber diaphragm to release the shrinkage stress of the inner side of the folding ring part, and the first auxiliary folding ring can absorb the deformation of the inner side of the folding ring; the second auxiliary folding ring can help the rubber vibrating diaphragm to release the contraction stress at the outer side of the folding ring part, and the second auxiliary folding ring can absorb the deformation of the outer side of the folding ring; therefore, when the rubber vibrating diaphragm is in stress shrinkage, the folded ring part cannot generate stress shrinkage deformation under the action of the first auxiliary folded ring and the second auxiliary folded ring.
As can be seen more clearly with reference to fig. 2, in order to remove the gas between the rubber membrane material and the die holder 1 and reduce the probability of trapping the gas between the rubber membrane material and the die holder 1, in this embodiment, the die holder 1 is provided with a vent hole 5, and the vent hole 5 includes a first air hole 51 formed in the first forming portion 6, a second air hole 52 formed in the first groove 2, and a third air hole 53 formed in the second groove 4;
in addition, in order to ensure that the formed rubber diaphragm can have a sufficient dome bonding area and a sufficient frame bonding area, the distance between the first air hole 51 and the forming groove 3, the distance between the second air hole 52 and the forming groove 3 and the distance between the third air hole 53 and the forming groove 3 are at least 0.7mm.
In this embodiment, the first auxiliary folding ring and the second auxiliary folding ring of the rubber diaphragm can be ensured to effectively help the folding ring part to absorb the shrinkage deformation amount of the rubber diaphragm, and the width of the first groove 2 and the width of the second groove 4 can be at least 1.5 times as wide as the width of the forming groove 3; and, the interval between the outer contour of the first groove 2 and the inner contour of the forming groove 3 may be set to 0.5 to 1mm; the distance between the inner contour of the second groove 4 and the outer contour of the forming groove 3 may be set to 0.5 to 1mm.
In summary, the diaphragm forming die provided by the utility model can effectively improve the yield of rubber diaphragm products, reduce the production cost of the rubber diaphragm, and avoid the acoustic performance and the product size of the rubber diaphragm from being substandard due to shrinkage deformation. In addition, the rubber vibrating diaphragm formed by the vibrating diaphragm forming die can ensure the bonding area between the rubber vibrating diaphragm and a finished membrane and between the rubber vibrating diaphragm and a basin frame, and the first auxiliary folding ring and the second auxiliary folding ring after the rubber vibrating diaphragm is formed can effectively help the folding ring part to release shrinkage stress and absorb the deformation of the folding ring part. In addition, the probability of trapping air between the rubber membrane material and the die holder 1 can be reduced by the vibrating membrane forming die, so that the yield of the rubber vibrating membrane is further improved.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (10)
1. The vibrating diaphragm forming die is characterized by comprising a die holder, wherein a first groove, a forming groove and a second groove which are sequentially distributed from inside to outside are formed in one side of the die holder, and the first groove, the forming groove and the second groove are annular grooves.
2. The diaphragm forming die of claim 1, wherein the die holder is provided with an exhaust hole.
3. The diaphragm forming die of claim 2, wherein the vent hole comprises a first vent hole, a first forming portion is further provided on the die holder, the first forming portion is provided in the annular region of the first groove, and the first vent hole is provided on the first forming portion.
4. The diaphragm forming die of claim 2, wherein the vent hole further comprises a second vent hole and a third vent hole, the second vent hole is disposed in the first groove, and the third vent hole is disposed in the second groove.
5. The diaphragm forming die of claim 2, wherein a distance between the vent hole and the forming groove is greater than or equal to 0.7mm.
6. The diaphragm forming die of claim 1, wherein a second forming portion is provided between the forming groove and the first groove.
7. The diaphragm forming die of claim 1, wherein a third forming portion is provided between the forming groove and the second groove.
8. The diaphragm forming die of claim 1, wherein the width of the first groove and the width of the second groove are each at least 1.5 times the width of the forming groove.
9. The diaphragm forming die of claim 1, wherein a distance between an outer contour of the first groove and an inner contour of the forming groove is 0.5 to 1mm.
10. The diaphragm forming die of claim 1, wherein a distance between an inner contour of the second groove and an outer contour of the forming groove is 0.5-1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321939385.9U CN220359369U (en) | 2023-07-21 | 2023-07-21 | Vibrating diaphragm forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321939385.9U CN220359369U (en) | 2023-07-21 | 2023-07-21 | Vibrating diaphragm forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220359369U true CN220359369U (en) | 2024-01-16 |
Family
ID=89484734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321939385.9U Active CN220359369U (en) | 2023-07-21 | 2023-07-21 | Vibrating diaphragm forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220359369U (en) |
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2023
- 2023-07-21 CN CN202321939385.9U patent/CN220359369U/en active Active
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