CN108174339A - A kind of multi-functional voice coil bobbin winder device - Google Patents
A kind of multi-functional voice coil bobbin winder device Download PDFInfo
- Publication number
- CN108174339A CN108174339A CN201810161293.XA CN201810161293A CN108174339A CN 108174339 A CN108174339 A CN 108174339A CN 201810161293 A CN201810161293 A CN 201810161293A CN 108174339 A CN108174339 A CN 108174339A
- Authority
- CN
- China
- Prior art keywords
- sliding rail
- bobbin winder
- traveller
- screw
- winder device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 210000004907 gland Anatomy 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
- H04R2231/001—Moulding aspects of diaphragm or surround
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The present invention provides a kind of multi-functional voice coil bobbin winder device, including pedestal, further include wire spool, traveller, drive component and rotary components, the top of pedestal is equipped with a sliding rail, traveller is slided on sliding rail, wire spool is sleeved on traveller, and it can be rotated around the glide direction of sliding rail, wire spool is equipped with voice coil conducting wire, drive component includes driving motor and screw, driving motor is fixed on the top of pedestal, screw is arranged along the glide direction of sliding rail, and one end of screw is fixedly connected with the output shaft of driving motor, the other end is threadedly coupled through traveller and with traveller, rotary components include electric rotating machine and the socket column being sleeved on the motor shaft of electric rotating machine, the glide direction of electric rotating machine along sliding rail is arranged in the top of pedestal, and positioned at the side of wire spool.Bobbin winder device in the present invention realizes and carries out coiling to voice coil automatically, improves the efficiency of voice coil coiling, time saving and energy saving, reduces cost of labor.
Description
Technical field
The present invention relates to voice coil manufacture technology field, more particularly to a kind of multi-functional voice coil bobbin winder device.
Background technology
Voice coil is the important component of dynamic speaker vibrational system, it may also be said to be the heart of loud speaker.Voice coil
Performance can influence sound pressure frequency characteristic, sound pressure level, impedance curve, distortion, transient response, loudspeaker parameters, the sound of loud speaker
The parameters such as matter, particularly relationship loud speaker bear power and service life.
Voice coil generally includes the coil for being in the skeleton of cylindrical toroidal and being set around on skeleton, therefore the process made in voice coil
In the middle, coiling is an important procedure.
In the prior art, for current voice coil winding process usually by being accomplished manually, efficiency is low, time-consuming and laborious, and artificial
It is of high cost.
Invention content
Based on this, the object of the present invention is to provide a kind of multi-functional voice coil bobbin winder device, to improve the efficiency of voice coil coiling.
A kind of multi-functional voice coil bobbin winder device, including pedestal, further includes wire spool, traveller, drive component and rotary components,
The top of the pedestal is equipped with a sliding rail, and the traveller is slided on the sliding rail, and the wire spool is sleeved on the traveller,
And can be rotated around the glide direction of the sliding rail, the wire spool is equipped with voice coil conducting wire, and the driving component includes driving electricity
Machine and screw, the driving motor are fixed on the top of the pedestal, and the screw is arranged along the glide direction of the sliding rail, and
One end of the screw is fixedly connected with the output shaft of the driving motor, the other end of the screw through the traveller and with
The traveller is threadedly coupled, and to form ball screw arrangement, the rotary components include electric rotating machine and are sleeved on the rotation
Socket column on the motor shaft of motor, the glide direction of the electric rotating machine along the sliding rail are arranged in the top of the pedestal,
And positioned at the side of the wire spool, the socket column is used to be socketed speech coil framework.
Speech coil framework set when needing to carry out coiling to voice coil, can be connected on socket column, and will be around by above-mentioned bobbin winder device
Voice coil conducting wire pre-wound one on drum is enclosed on speech coil framework, then starts electric rotating machine, to drive socket column rotation, and then band
Dynamic speech coil framework rotation, voice coil conducting wire will be constantly wound on speech coil framework, and coiling is carried out to voice coil automatically to realize.Therefore institute
State bobbin winder device realize automatically to voice coil carry out coiling, improve the efficiency of voice coil coiling, it is time saving and energy saving, reduce manually into
This.Moreover, the drive component of ball screw arrangement is constituted by setting, when carrying out coiling to voice coil, drive can be started
Dynamic motor drives screw to rotate, and under the action of ball-screw principle, wire spool will follow traveller to slide together, realize around
Line is synchronous with mobile, it is ensured that voice coil conducting wire can be around completely entire speech coil framework, the process for eliminating artificial line transfer position, further
Improve the efficiency of voice coil coiling.
Further, the outer wall of the socket column is equipped with the magnet of at least one absorption speech coil framework.
Further, set on the outer wall of the socket column there are two the magnet, the magnet in a ring, and described in two
What magnet was tilted and intersected is looped around on the outer wall of the socket column.
Further, the bobbin winder device further includes a gland, and the bottom of the gland is equipped with a screw, the socket column
Distal end faces be equipped with a threaded hole to match with the screw.
Further, it is installed with hexagonal (hexagon)nut at the top of the gland.
Further, the bottom of the gland is equipped with rubber pad.
Further, the traveller includes connecting portion and socket part, and the connecting portion is sliding on the sliding rail vertically, and
It is spirally connected with the screw, the socket part is vertically connected on the end of the connecting portion, and along the glide direction of the sliding rail
Arrangement, the wire spool are sleeved on the socket part.
Further, the junction of the connecting portion and the socket part be equipped with an annular against platform, the wire spool
It is resisted against described against on platform.
Description of the drawings
Fig. 1 is the stereogram of the bobbin winder device in first embodiment of the invention；
Fig. 2 is in stereogram during work for the bobbin winder device in first embodiment of the invention；
Fig. 3 is the three-dimensional exploded view of the rotary components and gland in second embodiment of the invention；
Fig. 4 is in stereogram during work for the bobbin winder device in second embodiment of the invention.
Main element symbol description：
Following specific embodiment will be further illustrated the present invention with reference to above-mentioned attached drawing.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In attached drawing
Give several embodiments of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is made to the disclosure more thorough and comprehensive.
It should be noted that when element is referred to as " being fixedly arranged on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The normally understood meaning of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " including one or more phases
The arbitrary and all combination of the Listed Items of pass.
Referring to Fig. 1, the bobbin winder device in first embodiment of the invention is shown, including pedestal 10, traveller 20, wire spool
30th, drive component 40 and rotary components 50.
The top of the pedestal 10 is equipped with a sliding rail 11, and the sliding rail 11 is in T-shaped.The traveller 20 is slided mounted in described
On sliding rail 11.
Wherein, the traveller 20 include connecting portion 21, socket part 22 and annular against platform 23.The connecting portion 21 is vertical
Sliding the socket part 22 is vertically connected on the end of the connecting portion 21 on the sliding rail 11, and along the sliding rail 11
Glide direction arrangement.The junction for being located at the connecting portion 21 and the socket part 22 against platform 23.
The wire spool 30 is sleeved on the socket part 22, and is resisted against described against on platform 23, while the coiling
Disk 30 can be rotated around the glide direction of the sliding rail 11, and the wire spool 30 is equipped with voice coil conducting wire A.
The driving component 40 includes driving motor 41 and screw 42, and the driving motor 41 is fixed on the pedestal 10
Top, the screw 42 are arranged along the glide direction of the sliding rail 11, and one end of the screw 42 and the driving motor 41
Output shaft be fixedly connected, the other end of the screw 42 is threadedly coupled through the connecting portion 21 and with the connecting portion 21,
To form ball screw arrangement.
The rotary components 50 include electric rotating machine 51 and the socket column being sleeved on the motor shaft of the electric rotating machine 51
52, the glide direction of the electric rotating machine 51 along the sliding rail 11 is arranged in the top of the pedestal 10, and positioned at the coiling
The side of disk 30, the socket column 52 are used to be socketed speech coil framework.
Preferably, set on the outer wall of the socket column 52 there are two magnet 521, the magnet 521 in a ring, and two institutes
That states that magnet 521 tilts and intersect is looped around on the outer wall of the socket column 52.
It should be pointed out that since the socket column 52 has inlayed the magnet 521, and the speech coil framework is by metal
Material is fabricated, and when the speech coil framework set is attached on the socket column 52, the magnet 521 will adsorb the voice coil bone
Frame, to reinforce the speech coil framework.Further, since two magnet 521 that the socket column 52 is inlayed tilt and intersecting row
Cloth increases the covering adsorption plane of magnet, it is ensured that the adsorption capacity suffered by the speech coil framework is uniform, and will not rotate skidding
Phenomenon.
It should be understood that in order to achieve the purpose that further to reinforce the speech coil framework, it is described in other embodiments
The magnet quantity that socket column 52 is inlayed can also be one or more.
Referring to Fig. 2, the stereogram under the bobbin winder device showing in the present embodiment is in running order, when needs pair
When voice coil carries out coiling, speech coil framework B can be covered and be connected on socket column 52, and by the voice coil conducting wire A pre-wound one on wire spool 30
Then circle starts electric rotating machine 51 on speech coil framework B, socket column 52 to be driven to rotate, and then drive speech coil framework B rotations,
Voice coil conducting wire A will be constantly wound on speech coil framework, and coiling is carried out to voice coil automatically to realize.Simultaneously, to voice coil into
During row coiling, driving motor 41 can be started screw 42 to be driven to rotate, under the action of ball-screw principle, traveller 20 is by direction
Driving motor 41 moves, and wire spool 30 will follow traveller 20 to slide together at this time, so that voice coil conducting wire A is wound into speech coil framework
On position also follow movement, with around completely entire speech coil framework, meanwhile, in mobile process, by described against platform 23
Limitation, the voice coil conducting wire A wound on the wire spool 30 will not off-lines, it is ensured that normal coiling.
To sum up, the bobbin winder device in the above embodiment of the present invention realizes and carries out coiling to voice coil automatically, improves
The efficiency of voice coil coiling, it is time saving and energy saving, reduce cost of labor.Moreover, ball screw arrangement is constituted by setting
Drive component it is synchronous with mobile to realize coiling, it is ensured that voice coil conducting wire can eliminate artificial tune around completely entire speech coil framework
The process of line position further improves the efficiency of voice coil coiling.
Fig. 3 to Fig. 4 is please referred to, show the bobbin winder device that second embodiment of the invention is worked as, the coiling in the present embodiment
Device and the bobbin winder device in first embodiment are more or less the same, the difference lies in, bobbin winder device in the present embodiment into
One step includes a gland 60, and no longer embedded magnet on the socket column 52.
The bottom of the gland 60 is equipped with a screw 61, and the top of the gland 60 is installed with hexagonal (hexagon)nut 62.The set
The distal end faces for connecing column 52 are equipped with a threaded hole 522 to match with the screw 61.
It should be understood that when the speech coil framework set is attached on the socket column 52, using screw and the dress of screw hole
With mode, the gland 60 is encased in the distal end faces of the socket column 52, to squeeze the speech coil framework (such as Fig. 4 institutes
Show), achieve the purpose that reinforce the speech coil framework, it is ensured that the motor shaft of the speech coil framework and the electric rotating machine 51 can be same
Step rotation.
Further, the bottom of the gland 60 is equipped with rubber pad 63, and the rubber pad 63 1 can increase and institute
The frictional force of speech coil framework is stated, the speech coil framework is further prevented to skid, also on the other hand is able to prevent from damaging the voice coil by pressure
Skeleton.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of multi-functional voice coil bobbin winder device, including pedestal, which is characterized in that further include wire spool, traveller, drive component and
Rotary components, the top of the pedestal are equipped with a sliding rail, and the traveller is slided on the sliding rail, and the wire spool is sleeved on institute
It states on traveller, and can be rotated around the glide direction of the sliding rail, the wire spool is equipped with voice coil conducting wire, the driving component packet
Driving motor and screw are included, the driving motor is fixed on the top of the pedestal, slip side of the screw along the sliding rail
To arrangement, and one end of the screw is fixedly connected with the output shaft of the driving motor, and the other end of the screw runs through institute
It states traveller and is threadedly coupled with the traveller, to form ball screw arrangement, the rotary components include electric rotating machine and suit
Socket column on the motor shaft of the electric rotating machine, the glide direction of the electric rotating machine along the sliding rail are arranged in the bottom
The top of seat, and positioned at the side of the wire spool, the socket column is used to be socketed speech coil framework.
2. bobbin winder device according to claim 1, which is characterized in that the outer wall of the socket column is equipped at least one absorption
The magnet of the speech coil framework.
3. bobbin winder device according to claim 2, which is characterized in that the magnetic there are two being set on the outer wall of the socket column
Iron, the magnet in a ring, and on the outer wall of two magnet being looped around of tilting and intersect socket column.
4. bobbin winder device according to claim 1, which is characterized in that the bobbin winder device further includes a gland, the pressure
The bottom of lid is equipped with a screw, and the distal end faces of the socket column are equipped with a threaded hole to match with the screw.
5. bobbin winder device according to claim 4, which is characterized in that be installed with hexagonal (hexagon)nut at the top of the gland.
6. bobbin winder device according to claim 4, which is characterized in that the bottom of the gland is equipped with rubber pad.
7. bobbin winder device according to claim 1, which is characterized in that the traveller includes connecting portion and socket part, described
Connecting portion is sliding on the sliding rail vertically, and is spirally connected with the screw, and the socket part is vertically connected on the connecting portion
It on end, and is arranged along the glide direction of the sliding rail, the wire spool is sleeved on the socket part.
8. bobbin winder device according to claim 7, which is characterized in that the junction of the connecting portion and the socket part is set
Have an annular against platform, the wire spool is resisted against described against on platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810161293.XA CN108174339A (en) | 2018-02-26 | 2018-02-26 | A kind of multi-functional voice coil bobbin winder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810161293.XA CN108174339A (en) | 2018-02-26 | 2018-02-26 | A kind of multi-functional voice coil bobbin winder device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108174339A true CN108174339A (en) | 2018-06-15 |
Family
ID=62511547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810161293.XA Pending CN108174339A (en) | 2018-02-26 | 2018-02-26 | A kind of multi-functional voice coil bobbin winder device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108174339A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109511055A (en) * | 2018-08-31 | 2019-03-22 | 东莞市冠威机械有限公司 | Wire-winding unit and automation voice coil production equipment |
| CN112040378A (en) * | 2020-09-02 | 2020-12-04 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker, voice coil manufacturing method and coil winding device |
| CN114143679A (en) * | 2021-11-25 | 2022-03-04 | 淮安伟跃汽车配件有限公司 | Method and device for winding high-fidelity loudspeaker voice coil |
| WO2022047860A1 (en) * | 2020-09-02 | 2022-03-10 | 瑞声声学科技(深圳)有限公司 | Speaker, voice coil, method for manufacturing voice coil and coil winding device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201285704Y (en) * | 2008-10-16 | 2009-08-05 | 钱承林 | Wire winding assembly with telescopic column |
| CN203632840U (en) * | 2013-11-14 | 2014-06-04 | 歌尔声学股份有限公司 | Earphone wire winding device |
| CN205793358U (en) * | 2016-06-03 | 2016-12-07 | 寻乌县爱馨泰电子商贸有限公司 | A kind of speaker voice coil Winder |
| CN206203569U (en) * | 2016-09-23 | 2017-05-31 | 深圳市鹏达金电子设备有限公司 | The fully automatic wire winding machine of modified form |
| CN206525548U (en) * | 2014-12-16 | 2017-09-29 | 惠州市吉瑞科技有限公司深圳分公司 | A kind of synchronizing wire winding equipment |
| CN208549023U (en) * | 2018-02-26 | 2019-02-26 | 江西雁腾科技有限公司 | A kind of multi-functional voice coil bobbin winder device |
-
2018
- 2018-02-26 CN CN201810161293.XA patent/CN108174339A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201285704Y (en) * | 2008-10-16 | 2009-08-05 | 钱承林 | Wire winding assembly with telescopic column |
| CN203632840U (en) * | 2013-11-14 | 2014-06-04 | 歌尔声学股份有限公司 | Earphone wire winding device |
| CN206525548U (en) * | 2014-12-16 | 2017-09-29 | 惠州市吉瑞科技有限公司深圳分公司 | A kind of synchronizing wire winding equipment |
| CN205793358U (en) * | 2016-06-03 | 2016-12-07 | 寻乌县爱馨泰电子商贸有限公司 | A kind of speaker voice coil Winder |
| CN206203569U (en) * | 2016-09-23 | 2017-05-31 | 深圳市鹏达金电子设备有限公司 | The fully automatic wire winding machine of modified form |
| CN208549023U (en) * | 2018-02-26 | 2019-02-26 | 江西雁腾科技有限公司 | A kind of multi-functional voice coil bobbin winder device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109511055A (en) * | 2018-08-31 | 2019-03-22 | 东莞市冠威机械有限公司 | Wire-winding unit and automation voice coil production equipment |
| CN109511055B (en) * | 2018-08-31 | 2024-02-09 | 东莞市冠威机械有限公司 | Automatic change voice coil loudspeaker voice coil production facility |
| CN112040378A (en) * | 2020-09-02 | 2020-12-04 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker, voice coil manufacturing method and coil winding device |
| WO2022047859A1 (en) * | 2020-09-02 | 2022-03-10 | 瑞声声学科技(深圳)有限公司 | Loudspeaker, voice coil, voice coil manufacturing method, and coil winding apparatus |
| WO2022047860A1 (en) * | 2020-09-02 | 2022-03-10 | 瑞声声学科技(深圳)有限公司 | Speaker, voice coil, method for manufacturing voice coil and coil winding device |
| CN114143679A (en) * | 2021-11-25 | 2022-03-04 | 淮安伟跃汽车配件有限公司 | Method and device for winding high-fidelity loudspeaker voice coil |
| CN114143679B (en) * | 2021-11-25 | 2024-04-19 | 淮安伟跃汽车配件有限公司 | Winding method and device for voice coil of high-fidelity loudspeaker |
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