CN106604198B - A kind of mold of loudspeaker voice diaphragm forming and preparation method thereof - Google Patents
A kind of mold of loudspeaker voice diaphragm forming and preparation method thereof Download PDFInfo
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- CN106604198B CN106604198B CN201611075341.0A CN201611075341A CN106604198B CN 106604198 B CN106604198 B CN 106604198B CN 201611075341 A CN201611075341 A CN 201611075341A CN 106604198 B CN106604198 B CN 106604198B
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- die ontology
- gap
- ventilative groove
- mold
- loudspeaker voice
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Embodiment of the present invention discloses a kind of mold of loudspeaker voice diaphragm forming, it include: die ontology, wherein, the bottom surface of the die ontology is provided with a ventilative groove, the die ontology also has the gap for penetrating the die ontology, the ventilative groove is connected to the gap, and the area of section of the ventilative groove is greater than the area of section in the gap, so that the ventilative groove and gap form exhaust passage.Through the above way, embodiment of the present invention is by being arranged a ventilative groove in the bottom surface of die ontology, because die ontology has the gap for penetrating itself, air can reach ventilative groove by gap, ventilative groove and gap is set to form exhaust passage, the path of air discharge when shortening the molding of sound film in this way, to make gas permeability when improving mold molding, and without the thickness for changing mold materials, improve rigidity.Ventilative groove it is easy to make, improve production efficiency to reduce production cost.
Description
Technical field
Embodiment of the present invention is related to mould applications, mold and its production more particularly to a kind of loudspeaker voice diaphragm forming
Method.
Background technique
Sound film is always loudspeaker, the core component in receiver design at present, passes through the vibration of sound film and generates different property
Can, in a closed environment, by film of the gas pressure in heating softening, form it in a mold, and in mold
Air can exclude to directly influence the size of sound film completely.
The mold of loudspeaker voice diaphragm forming is mainly based on metal at present, wherein using sintered steel as the saturating of raw material
Gas is best, and air can be discharged by the stomata between powder when molding.And material must pass through a series of machining work
Skill reaches mould and die accuracy, and due to can cover the stomata of material script in mechanical processing process, air can not when leading to molding
Discharge, is caused molding bad.Existing technical solution is: open up in a mold aperture (position 1 in Fig. 1) help be vented or
Reduce integral material thickness to shorten exhaust distance, but film can be squeezed into aperture in the molding of sound film, there are the wind of rupture
Danger, causes hidden danger of quality, meanwhile, if the thickness for reducing mold can make the weakened of mold, it is easily broken off, causes to scrap.
Summary of the invention
Embodiment of the present invention is mainly solving the technical problems that provide the mold and its system of a kind of loudspeaker voice diaphragm forming
The problem of making method, being able to solve the die ontology poor air permeability of loudspeaker voice diaphragm forming.
In order to solve the above technical problems, the technical solution that embodiment of the present invention uses is: providing a kind of loudspeaker
The molding mold of sound film, comprising: die ontology, wherein the bottom surface of die ontology is provided with a ventilative groove, the ventilative groove
Thickness direction from the bottom surface of the die ontology along the die ontology extends, and die ontology, which also has, penetrates die ontology
Gap, ventilative groove are connected to gap, and the area of section of ventilative groove is greater than the area of section in gap, so that ventilative groove
Exhaust passage is formed with gap.
Wherein, die ontology top surface is equipped with the rough grid in part, and grid is located on gap, and the aperture of grid
It is connected to gap, the grid is by utilizing laser in the radium-shine formation in the top surface of the die ontology.
Wherein, the depth of ventilative groove is the 2/3 of die ontology thickness.
Wherein, the diameter of section of ventilative groove is 3/4 of most short side edge lengths at the top of die ontology.
Wherein, the material of die ontology is sintered steel.
In order to solve the above technical problems, another technical solution that embodiment of the present invention provides is: providing a kind of loudspeaking
The production method of the molding mold of device sound film, comprising: by electrical discharge machining process die ontology bottom surface processing breathe freely it is recessed
Slot, thickness direction of the ventilative groove from the bottom surface of the die ontology along the die ontology extend, wherein die ontology
With the gap for penetrating die ontology；Ventilative groove is connected to gap, ventilative groove and gap is made to form exhaust passage,
In, the area of section of ventilative groove is processed into the area of section greater than gap, multiple gaps is made to pass through groove of breathing freely；Using swash
Light is in the radium-shine rough grid in part out in the top surface of die ontology, wherein grid is located on gap；By the aperture of grid with
Gap connection.
Wherein, the depth of ventilative groove is the 2/3 of die ontology thickness.
Wherein, the diameter of section of ventilative groove is 3/4 of most short side edge lengths at the top of die ontology.
Wherein, the material of die ontology is sintered steel.
The beneficial effect of embodiment of the present invention is: being in contrast to the prior art, embodiment of the present invention provides one
The mold and preparation method thereof of kind loudspeaker voice diaphragm forming, by the way that a ventilative groove is arranged in the bottom surface of die ontology, because of mould
Tool ontology has the gap for penetrating itself, and air can be reached ventilative groove by gap, ventilative groove and gap is made to form exhaust
Channel, the path of air discharge when shortening the molding of sound film in this way, to make gas permeability when improving mold molding, and nothing
The thickness that mold materials need to be changed, improves rigidity.Ventilative groove it is easy to make, improve production efficiency to reduce life
Produce cost.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the mold of loudspeaker voice diaphragm forming provided by the invention；
Fig. 2 is a kind of stream of the first embodiment of the production method of the mold of loudspeaker voice diaphragm forming provided by the invention
Cheng Tu；
Fig. 3 is a kind of stream of the second embodiment of the production method of the mold of loudspeaker voice diaphragm forming provided by the invention
Cheng Tu.
Specific embodiment
To facilitate the understanding of the present invention, with reference to the accompanying drawings and detailed description, the present invention is carried out in more detail
It is bright.It should be noted that be expressed " being fixed on " another element when element, it can directly on the other element or
There may be one or more elements placed in the middle therebetween.When an element is expressed " connection " another element, it be can be directly
It is connected to another element in succession or there may be one or more elements placed in the middle therebetween.Term used in this specification
"vertical", "horizontal", "left" and "right" and similar statement are for illustrative purposes only.
Unless otherwise defined, technical and scientific term all used in this specification is led with technology of the invention is belonged to
The normally understood meaning of the technical staff in domain is identical.Used term is only in the description of the invention in this specification
The purpose of description specific embodiment is not intended to the limitation present invention.Term "and/or" used in this specification includes
Any and all combinations of one or more related listed items.
Refering to fig. 1, the mold 10 for the loudspeaker voice diaphragm forming that embodiment of the present invention provides includes: die ontology 10,
In, the bottom surface of the die ontology 10 is provided with a ventilative groove 101, and the die ontology 101, which also has, penetrates the mold
The gap (not shown) of ontology, the ventilative groove 101 is connected to the gap, and the section face of the ventilative groove 101
Product is greater than the area of section in the gap, so that the ventilative groove 101 and gap form exhaust passage.
The material that the die ontology 10 uses is sintered steel, is had using metal made of powder metallurgy good
Gas permeability, because using having gap between the powder in metal made of PM technique, to make die ontology 10 certainly
Body band gap.At present when making sound film, air is discharged from the gap of mold itself, but often makes mold
A series of machining is had to pass through in the process to reach the precision of mold, due in mechanical processing process by the material of mold
Expect the gap covering of script, air can not normally be discharged when sound film being caused to form, and cause the molding of sound film bad.And existing improvement
Scheme be open up the aperture for penetrating mold in a mold, or reduce mold entirety thickness to shorten exhaust distance, can
It is if opening up the aperture for penetrating mold, in the molding of sound film, film can squeeze into aperture, and there are the risks of rupture, cause matter
Measure hidden danger.If mold whole thickness reduced, the weakened of mold will lead to, be easily broken off and cause to scrap.And in this hair
In bright embodiment, by the way that a ventilative groove is arranged in the bottom surface of die ontology, because die ontology has the gap for penetrating itself,
Air can reach ventilative groove by gap, and ventilative groove and gap is made to form exhaust passage, both shorten the molding of sound film in this way
When air discharge path, and will not make to impact sound film.
In inventive embodiments, by the way that a ventilative groove is arranged in the bottom surface of die ontology, worn because die ontology has
The gap of itself thoroughly, air can be reached ventilative groove by gap, so that ventilative groove and gap is formed exhaust passage, shorten in this way
The path of air discharge when the molding of sound film, to make gas permeability when improving mold molding, and without changing mold material
The thickness of material, improves rigidity.Ventilative groove it is easy to make, improve production efficiency to reduce production cost.
Further, 10 top surface of die ontology is additionally provided with the rough grid 102 in part, the grid 102
In on the gap, and the aperture of grid 102 is connected to gap.The grid 102 is formed by laser, due to
The gap on the surface of die ontology 10 can be filled up in ventilative 101 process of groove, and using it is radium-shine be made grid be in order to
Clearing up and processing surface, makes gap have gas permeability again.
Specifically, the depth of the ventilative groove 101 is the 2/3 of 10 thickness of die ontology, the ventilative groove 101
Diameter of section be the 3/4 of 10 top most short side edge lengths of the die ontology, it is certainly, described in other alternate embodiments
The depth of ventilative groove 101 is also possible to the 3/4 or 1/5 of 10 thickness of die ontology, as long as not making ventilative 101 spigot die of groove
Have the top surface of ontology 10, and to guarantee that 10 top surface of die ontology is not easy to the mold of that section of distance for groove 101 of breathing freely
Fracture.
Referring to Fig. 2, Fig. 2 is.The embodiment of the present invention also provides a kind of production method of the mold of loudspeaker voice diaphragm forming,
Include:
21: ventilative groove being processed in the bottom surface of die ontology by electrical discharge machining process, wherein the die ontology tool
There is the gap for penetrating the die ontology；
The galvanic action ablation that electrical discharge machining generates when being using two interpolar pulsed discharge being immersed in working solution is conductive
The defects of special process method of material, this processing technology is not likely to produce burr and mark groove, it is capable of processing conventional machining processes
Method is difficult to the material cut and complicated shape work, so can make ventilative Pocket Machining using electrical discharge machining process production groove
Precision is got higher.
22: the ventilative groove is connected to the gap, the ventilative groove and gap is made to form exhaust passage,
In, the area of section of the ventilative groove is processed into the area of section greater than the gap, multiple gaps is made to pass through institute
State ventilative groove；
Material used by die ontology is sintered steel, has ventilative spy using metal made of powder metallurgy
Property, make die ontology itself that air be discharged with gap, so air can be direct by gap during when sound film forms
It is discharged into ventilative groove, compared with the existing technology, shortens the distance of exhaust, improve the efficiency of exhaust in this way.
Specifically, the depth of the ventilative groove is the 2/3 of the die ontology thickness, the section of the ventilative groove is straight
Diameter is the 3/4 of the die ontology top surface most short side edge lengths.If by ventilative groove complete penetration die ontology, in production sound
In film forming process, sound film can be made to be squeezed into aperture, there are the risks of rupture, hidden danger of quality are caused, so implementing in the present invention
In example, ventilative groove is the top surface for not penetrating die ontology, both realizes shortening exhaust distance in this way, sound film is prevented to damage
Bad risk, it should be noted that the depth and diameter of section of ventilative groove are not limited to above range, need to not only influence sound
The molding quality of film.
Multiple die ontology intermediate gaps and ventilative groove can form a plurality of exhaust passage, make in sound film forming process in this way
Air effectively can quickly be discharged.
In inventive embodiments, by the way that a ventilative groove is arranged in the bottom surface of die ontology, worn because die ontology has
The gap of itself thoroughly, air can be reached ventilative groove by gap, so that ventilative groove and gap is formed exhaust passage, shorten in this way
The path of air discharge when the molding of sound film, to make gas permeability when improving mold molding, and without changing mold material
The thickness of material, improves rigidity.Ventilative groove it is easy to make, improve production efficiency to reduce production cost.
Referring to Fig. 3, Fig. 3 is a kind of second embodiment of the production method of the mold of loudspeaker voice diaphragm forming of the present invention
Flow chart, which comprises
Step 21-22 and a kind of step of the first embodiment of the production method of the mold of loudspeaker voice diaphragm forming of the present invention
Rapid 21-22 is consistent, no longer repeats one by one herein.
23: using laser in the radium-shine rough grid in part out in the die ontology top surface, wherein the grid position
In on the gap；
The advantages of radium-shine technology directionality of laser is good and high brightness, and radium-shine is contactless processing, to material without straight
Impact is connect, therefore without mechanically deform, while the speed of radium-shine processing is fast.Since die ontology itself is with gap, but due to
During sound film is molding, often due to machining can make the gap of die ontology itself capped, lead to gas row not
Out, so can clear up the surface of die ontology using radium-shine technology, making gap again becomes with gas permeability.
24: the aperture of the grid is connected to the gap.
In inventive embodiments, by the way that a ventilative groove is arranged in the bottom surface of die ontology, worn because die ontology has
The gap of itself thoroughly, air can be reached ventilative groove by gap, so that ventilative groove and gap is formed exhaust passage, shorten in this way
The path of air discharge when the molding of sound film, to make gas permeability when improving mold molding, and without changing mold material
The thickness of material, improves rigidity.Ventilative groove it is easy to make, improve production efficiency to reduce production cost.Simultaneously
Die ontology surface is cleaned up using radium-shine technology, is made due to processing and capped gap is provided with gas permeability again.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, all to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (8)
1. a kind of mold of loudspeaker voice diaphragm forming characterized by comprising
Die ontology, wherein the bottom surface of the die ontology is provided with a ventilative groove, and the ventilative groove is from the mold sheet
The bottom surface of body along the die ontology thickness direction extend, the die ontology also has penetrate the die ontology between
Gap, the ventilative groove are connected to the gap, and the area of section of the ventilative groove is greater than the section face in the gap
Product, so that the ventilative groove and gap form exhaust passage；
The die ontology top surface is equipped with the rough grid in part, and the grid is located on the gap, and the net
The aperture of lattice is connected to the gap, and the grid is by utilizing laser in the radium-shine formation in the top surface of the die ontology.
2. the mold of loudspeaker voice diaphragm forming according to claim 1, which is characterized in that
The depth of the ventilative groove is the 2/3 of the die ontology thickness.
3. the mold of loudspeaker voice diaphragm forming according to claim 1, which is characterized in that
The diameter of section of the ventilative groove is the 3/4 of the die ontology top surface most short side edge lengths.
4. the mold of loudspeaker voice diaphragm forming according to claim 3, which is characterized in that
The material of the die ontology is sintered steel.
5. a kind of production method of the mold of loudspeaker voice diaphragm forming characterized by comprising
Ventilative groove is processed in the bottom surface of die ontology by electrical discharge machining process, and the ventilative groove is from the die ontology
Bottom surface extend along the thickness direction of the die ontology, wherein the die ontology, which has, to be penetrated between the die ontology
Gap；
The ventilative groove is connected to the gap, the ventilative groove and gap is made to form exhaust passage, wherein will be described
The area of section of ventilative groove is processed into the area of section greater than the gap, make multiple gaps by it is described breathe freely it is recessed
Slot；
Using laser in the radium-shine rough grid in part out in the top surface of the die ontology, wherein the grid is located at institute
It states on gap；
The aperture of the grid is connected to the gap.
6. according to the method described in claim 5, it is characterized in that,
The depth of the ventilative groove is the 2/3 of the die ontology thickness.
7. according to the method described in claim 5, it is characterized in that,
The diameter of section of the ventilative groove is the 3/4 of the die ontology top surface most short side edge lengths.
8. the method according to the description of claim 7 is characterized in that
The material of the die ontology is sintered steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611075341.0A CN106604198B (en) | 2016-11-29 | 2016-11-29 | A kind of mold of loudspeaker voice diaphragm forming and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611075341.0A CN106604198B (en) | 2016-11-29 | 2016-11-29 | A kind of mold of loudspeaker voice diaphragm forming and preparation method thereof |
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| CN106604198A CN106604198A (en) | 2017-04-26 |
| CN106604198B true CN106604198B (en) | 2019-10-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1504312A (en) * | 2002-11-29 | 2004-06-16 | 陈特夫 | Metal mould capable of exhaust |
| CN202241778U (en) * | 2011-06-30 | 2012-05-30 | 西安铁路信号有限责任公司 | Mould for encapsulating polyurethane |
| CN202621677U (en) * | 2012-06-30 | 2012-12-26 | 惠州市金山电子有限公司 | Equipment for forming metal vibration film |
| CN203077734U (en) * | 2012-12-19 | 2013-07-24 | 苏州冠纶电子科技有限公司 | Silica gel air hole paper |
| CN105681998A (en) * | 2016-01-12 | 2016-06-15 | 常州阿木奇声学科技有限公司 | Vibration film production technology of moving iron unit |
-
2016
- 2016-11-29 CN CN201611075341.0A patent/CN106604198B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1504312A (en) * | 2002-11-29 | 2004-06-16 | 陈特夫 | Metal mould capable of exhaust |
| CN202241778U (en) * | 2011-06-30 | 2012-05-30 | 西安铁路信号有限责任公司 | Mould for encapsulating polyurethane |
| CN202621677U (en) * | 2012-06-30 | 2012-12-26 | 惠州市金山电子有限公司 | Equipment for forming metal vibration film |
| CN203077734U (en) * | 2012-12-19 | 2013-07-24 | 苏州冠纶电子科技有限公司 | Silica gel air hole paper |
| CN105681998A (en) * | 2016-01-12 | 2016-06-15 | 常州阿木奇声学科技有限公司 | Vibration film production technology of moving iron unit |
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| Publication number | Publication date |
|---|---|
| CN106604198A (en) | 2017-04-26 |
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Effective date of registration: 20210810 Address after: 518000 No.3 Factory, Qiaotou Fuqiao Industrial Zone, Fuyong Town, Bao'an District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN EVERWIN PRECISION TECHNOLOGY Co.,Ltd. Address before: 518000 2nd floor, building 25, Zhiheng Industrial Park, nantouguankou 2nd Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN BELLSING ACOUSTIC TECHNOLOGY Co.,Ltd. |
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