CN207967214U - A kind of constant speed winding volume needle combined mechanism - Google Patents
A kind of constant speed winding volume needle combined mechanism Download PDFInfo
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- CN207967214U CN207967214U CN201820316811.6U CN201820316811U CN207967214U CN 207967214 U CN207967214 U CN 207967214U CN 201820316811 U CN201820316811 U CN 201820316811U CN 207967214 U CN207967214 U CN 207967214U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
This practicality is related to a kind of constant speed winding volume needle combined mechanism, including unreeling correction executing mechanism, the servo motor lateral wall that unreels is provided with battery pole piece, and first unreeled to be provided with above roller and unreeled roller support plate, it is described unreeled roller support plate lateral wall and be connected with unreel pole piece, it, which unreels pole piece top and is connected with pole piece and crosses roller lug, smooths plate A, and pole piece crosses roller lug and smooths plate A upper side walls and be equipped with pole piece and crosses roller, the pole piece, which crosses roller left side wall and is provided with pole piece and crosses roller lug, smooths plate B, its pole piece, which crosses roller lug and smooths plate B top sidewalls and be equipped with lug, smooths regulating mechanism, and lug smooths and is equipped with pole piece dedusting mechanism above regulating mechanism.Constant speed winding volume needle combined mechanism can effectively improve winding speed, battery core battery core is wound in constant tension value, can guarantee that the ectonexine elasticity of battery core is consistent, ensures the finished product battery core stable quality of winding, and the efficiency of at least one times or more of raising, the winding speed of 1400mm/s can be reached.
Description
Technical field
This practicality belongs to cell manufacturing techniques field, and in particular to a kind of winder winding pin combined mechanism.
Background technology
Lithium ion battery is the novel high-energy battery succeeded in developing in 20th century.Lithium ion research start from the 1980s,
Enter the industrialization stage nineties, and develops rapidly.Lithium ion battery due to higher than energy, small, environmental-friendly and by
The favor of every profession and trade is widely used in the digital products such as mobile phone, laptop and new-energy automobile etc..
And in battery battery core convolute manufacture process in winding process, the volume needle of current all rectangular windings is rectangular
Shape, when volume needle moves in a circle around center, the pole piece and diaphragm of winding can be because of each angle formation when volume needle rotates
Circumferential length is different, causes the fluctuation of winding tension peak of curve very big, can not ensure constant tension in a certain range value, institute
High-speed winding can not be being carried out with winding mechanism at present, under the driving of quality and efficiency, it is highly desirable to wind constant speed
Volume needle combined mechanism is introduced to the market.
Invention content
This practical purpose is to provide a kind of constant speed winding volume needle combined mechanism, to solve to propose in above-mentioned background technology
The volume needle of current all rectangular windings is rectangle, when volume needle moves in a circle around center, the pole piece and diaphragm of winding, and meeting
Because the circumferential length that each angle is formed when rolling up needle rotation is different, winding tension peak of curve is caused to fluctuate very big, nothing
Method ensures constant tension in a certain range value, so at present the problem of can not carry out high-speed winding with winding mechanism.
To achieve the above object, this practicality provides the following technical solutions：A kind of constant speed winding volume needle combined mechanism, including put
Correction executing mechanism is rolled up, the correction executing mechanism top sidewall that unreels is provided with mechanical expansion shaft mechanism, mechanical expansion shaft mechanism
Top sidewall, which is equipped with, unreels servo motor, and the servo motor lateral wall that unreels is provided with battery pole piece, and battery pole piece is right
Side wall is fixed with first and unreeled roller, and first unreeled to be provided with above roller and unreeled roller support plate, described to unreel roller branch
Fagging lateral wall, which is connected with, unreels pole piece, unreels pole piece top and is connected with pole piece and crosses roller lug and smooths plate A, and pole piece crosses roller pole
Ear, which smooths plate A upper side walls and is equipped with pole piece, crosses roller, and the pole piece, which crosses roller left side wall and is provided with pole piece and crosses roller lug, smooths plate B,
Pole piece, which crosses roller lug and smooths plate B top sidewalls and be equipped with lug, smooths regulating mechanism, and lug smooths installation above regulating mechanism
There are pole piece dedusting mechanism, the pole piece dedusting mechanism to be internally provided with pole piece dedusting dust sucting pipeline and pole piece dedusting gassing pipe,
And pole piece dedusting mechanism is fixedly arranged above under tension cache mechanism activity and crosses roller, under the tension cache mechanism activity cross above roller
Tension buffer module is installed, tension buffer module top side wall is arranged activity on tensioned cache mechanism and crosses roller, and tension
Activity crosses roller right side wall and is provided with tension load cell on cache mechanism, and setting is tensioned on the right side of the tension load cell
Sensor detects fixing roller, and roller, and metering are crossed before metering encoder roller group is equipped on the right side of tension sensor detection fixing roller
It is crossed below roller before encoder roller group and is provided with metering encoder, being provided with metering encoder below the metering encoder crosses roller,
Its metering encoder crosses roller bottom sidewall and is provided with metering encoder prefabricating plate, and metering encoder prefabricating plate bottom sidewall is installed
There is metering encoder prefabricating plate compression cylinder, is provided with before secondary volume needle under roller pole-piece pole-ear excessively and comforts on the right side of the metering encoder
Tablet is crossed under roller pole-piece pole-ear before secondary volume needle to smooth plate top sidewall and be provided with before secondary volume needle to cross on roller pole-piece pole-ear and be comforted
Tablet, and cross on roller pole-piece pole-ear to smooth plate top sidewall and be equipped with to cross under roller pole-piece pole-ear before secondary volume needle before secondary volume needle and comfort
Flat angular adjustment crosses roller mechanism, crosses under roller pole-piece pole-ear to smooth before the secondary volume needle and is equipped with mistake before secondary volume needle on the right side of plate
Roller is crossed below roller before secondary volume needle and is provided with auxiliary rolling needle mechanism, and rolling needle mechanism lateral wall is assisted to be provided with secondary volume needle
Mechanism station mounting base, the auxiliary rolling needle mechanism station mounting base lower section are provided with the first real-time rolling needle mechanism and retreat station machine
Structure, the first real-time rolling needle mechanism retreat station mechanism and are internally connected with real-time rolling needle mechanism, and rolling needle mechanism lateral wall in real time
It is connected with real-time rolling needle mechanism, the real-time rolling needle mechanism bottom is provided with the second real-time rolling needle mechanism and retreats station mechanism, and
Second real-time rolling needle mechanism, which retreats, is equipped with the real-time rolling needle mechanism retrogressing station mechanism of third inside station mechanism.
Preferably, the battery pole piece is connected with each other by unreeling pole piece with real-time rolling needle mechanism.
Preferably, activity crosses movable roller of crossing on roller and tension cache mechanism and is provided with 2 groups altogether under the tension cache mechanism,
And activity crosses roller about on the lateral symmetry axis of tension buffer module on activity roller and tension cache mechanism excessively under tension cache mechanism
Under be symmetrically installed.
Preferably, the described first real-time rolling needle mechanism retreats station mechanism and real-time rolling needle mechanism and second and rolls up needle machine in real time
Structure retreats station mechanism and the real-time rolling needle mechanism of third retreats station mechanism about right above and below the lateral symmetry axis of real-time rolling needle mechanism
Claim installation.
Compared with prior art, the advantageous effect of this practicality is：Constant speed winding volume needle combined mechanism can be carried effectively
High winding speed winds battery core battery core in constant tension value, can guarantee that the ectonexine elasticity of battery core is consistent, ensures winding
Finished product battery core stable quality, and at least one times or more of efficiency is improved, the winding speed of 1400mm/s can be reached.Battery pole piece is logical
It crosses and unreels pole piece and the interconnection of real-time rolling needle mechanism, it is living under tension cache mechanism convenient for mechanism continuous type work increase yield
It moved movable roller of crossing on roller and tension cache mechanism and is provided with 2 groups altogether, and roller and tension caching are crossed in activity under tension cache mechanism
Activity crosses roller about the installation symmetrical above and below of the lateral symmetry axis of tension buffer module in mechanism, and machine is cached by the tension being symmetrically installed
Activity crosses movable roller of crossing on roller and tension cache mechanism and has further speeded up winding rate under structure, and the first real-time rolling needle mechanism retreats
Station mechanism and real-time rolling needle mechanism and the second real-time rolling needle mechanism retreat station mechanism and the real-time rolling needle mechanism of third retreats work
Position mechanism is rolled up by the structure being symmetrically installed convenient for mechanism recycling about the installation symmetrical above and below of the lateral symmetry axis of real-time rolling needle mechanism
Needle produces convenient for following process.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of constant speed winding volume needle combined mechanism of this practicality；
Fig. 2 is a kind of winding path schematic diagram of constant speed winding volume needle combined mechanism of this practicality；
Fig. 3 is enlarged structure schematic diagram at A in a kind of Fig. 1 of constant speed winding volume needle combined mechanism of this practicality.
In figure：1, correction executing mechanism is unreeled, 2, mechanical expansion shaft mechanism, 3, unreel servo motor, 4, battery pole piece, 5,
One unreeled roller, 6, unreeled roller support plate, 7, unreel pole piece, 8, pole piece cross roller lug and smooth plate A, 9, pole piece cross roller, 10, pole
Piece crosses roller lug and smooths plate B, 11, lug smooth regulating mechanism, 12, pole piece dedusting mechanism, 13, pole piece dedusting dust sucting pipeline, 14,
Pole piece dedusting gassing pipe, 15, roller is crossed in activity under tension cache mechanism, 16, tension buffer module, 17, on tension cache mechanism
Roller is crossed in activity, 18, tension load cell, 19, tension sensor detect fixing roller, 20, cross roller before metering encoder roller group,
21, metering encoder, 22, metering encoder cross roller, 23, metering encoder prefabricating plate, 24, metering encoder prefabricating plate compress gas
Cylinder, 25, cross under roller pole-piece pole-ear before secondary volume needle and smooth plate, 26, cross on roller pole-piece pole-ear before secondary volume needle and smooth plate, 27, auxiliary
It helps before volume needle to cross and smooths angular adjustment under roller pole-piece pole-ear and cross roller mechanism, 28, cross roller before secondary volume needle, 29, auxiliary rolling needle mechanism,
30, rolling needle mechanism station mounting base is assisted, the 31, first real-time rolling needle mechanism retreats station mechanism, 32, real-time rolling needle mechanism, 33,
Real-time rolling needle mechanism revolves round the sun frame, and the 34, second real-time rolling needle mechanism retreats station mechanism, 35, the real-time rolling needle mechanism of third retreat work
Position mechanism.
Specific implementation mode
Below in conjunction with the attached drawing in this practical embodiment, the technical solution in this practical embodiment is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only this practicality a part of the embodiment, instead of all the embodiments.It is based on
Embodiment in this practicality, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment belongs to the range of this practicality protection.
- 3 are please referred to Fig.1, this practicality provides a kind of technical solution：A kind of constant speed winding volume needle combined mechanism, including unreel
Correction executing mechanism 1 unreels 1 top sidewall of correction executing mechanism and is provided with mechanical expansion shaft mechanism 2, and mechanical expansion shaft mechanism 2 is pushed up
Portion's side wall, which is equipped with, unreels servo motor 3, unreels 3 lateral wall of servo motor and is provided with battery pole piece 4,4 right side of battery pole piece
Wall is fixed with first and unreeled roller 5, and first unreeled 5 top of roller and be provided with and unreeled roller support plate 6, and battery pole piece 4 passes through
It unreels pole piece 7 to be connected with each other with real-time rolling needle mechanism 32, increases yield convenient for mechanism continuous type work, unreeled roller support plate 6
Lateral wall, which is connected with, unreels pole piece 7, unreels 7 top of pole piece and is connected with pole piece and crosses roller lug and smooths plate A8, and pole piece crosses roller pole
Ear, which smooths plate A8 upper side walls and is equipped with pole piece, crosses roller 9, and pole piece, which crosses 9 left side wall of roller and is provided with pole piece and crosses roller lug, smooths plate B10,
Pole piece, which crosses roller lug and smooths plate B10 top sidewalls and be equipped with lug, smooths regulating mechanism 11, and lug smooths on regulating mechanism 11
Side is equipped with pole piece dedusting mechanism 12, and pole piece dedusting mechanism 12 is internally provided with pole piece dedusting dust sucting pipeline 13 and pole piece dedusting is blown
Feed channel 14, and pole piece dedusting mechanism 12 is fixedly arranged above activity under tension cache mechanism and crosses roller 15, lives under tension cache mechanism
It moved movable roller 17 of crossing on roller 15 and tension cache mechanism and is provided with 2 groups altogether, and activity is crossed roller 15 and opened under tension cache mechanism
Activity crosses roller 17 about the 16 lateral symmetry axis installation symmetrical above and below of tension buffer module on power cache mechanism, passes through what is be symmetrically installed
Activity crosses movable roller 17 of crossing on roller 15 and tension cache mechanism and has further speeded up winding rate under tension cache mechanism, and tension is slow
It deposits movable 15 top of roller of crossing under mechanism and tension buffer module 16 is installed, the setting of 16 top sidewall of tension buffer module is tensioned
Roller 17 is crossed in activity on cache mechanism, and movable 17 right side wall of roller of crossing is provided with tension load cell 18 on tension cache mechanism,
18 right side of tension load cell is provided with tension sensor detection fixing roller 19, and tension sensor detects 19 right side of fixing roller
Roller 20 is crossed before metering encoder roller group is installed, and crosses 20 lower section of roller before metering encoder roller group and is provided with metering encoder 21,
21 lower section of metering encoder is provided with metering encoder and crosses roller 22, and metering encoder crosses 22 bottom sidewall of roller and is provided with metering volume
Code device prefabricating plate 23, and 23 bottom sidewall of metering encoder prefabricating plate is equipped with metering encoder prefabricating plate compression cylinder 24, meter
21 right side of rice encoder is provided with before secondary volume needle under roller pole-piece pole-ear excessively and smooths plate 25, and roller pole-piece pole-ear is crossed before secondary volume needle
Under smooth 25 top sidewall of plate and be provided with to cross on roller pole-piece pole-ear before secondary volume needle and smooth plate 26, and roller pole piece is crossed before secondary volume needle
26 top sidewall of plate is smoothed on lug be equipped with before secondary volume needle to cross smooth angular adjustment under roller pole-piece pole-ear and cross roller mechanism 27, it is auxiliary
It helps before rolling up needle to cross under roller pole-piece pole-ear to smooth before 25 right side of plate is equipped with secondary volume needle and crosses roller 28, crossed under roller 28 before secondary volume needle
Side is provided with auxiliary rolling needle mechanism 29, and 29 lateral wall of rolling needle mechanism is assisted to be provided with auxiliary rolling needle mechanism station mounting base 30,
30 lower section of auxiliary rolling needle mechanism station mounting base is provided with the first real-time rolling needle mechanism and retreats station mechanism 31, and first rolls up in real time
Needle mechanism retreats station mechanism 31 and is internally connected with real-time rolling needle mechanism 32, and 32 lateral wall of rolling needle mechanism is connected in real time in real time
Rolling needle mechanism 33, after the first real-time rolling needle mechanism retreats station mechanism 31 and real-time rolling needle mechanism 32 and the second real-time rolling needle mechanism
Move back station mechanism 34 and the real-time rolling needle mechanism of third retreat station mechanism 35 about 33 lateral symmetry axis of real-time rolling needle mechanism above and below
It is symmetrically installed, the structure by being symmetrically installed produces real-time 33 bottom of rolling needle mechanism convenient for mechanism recycling volume needle convenient for following process
Portion is provided with the second real-time rolling needle mechanism and retreats station mechanism 34, and the second real-time rolling needle mechanism retreats 34 inside peace of station mechanism
Station mechanism 35 is retreated equipped with the real-time rolling needle mechanism of third.
The operation principle of the present embodiment：Constant speed winding volume needle combined mechanism by multigroup mechanism collective effect, put by startup
Roll up servo motor 3 so that unreel pole piece 7 and be guided out by unreeling correction executing mechanism, then unreeled roller by first respectively
5, pole piece is crossed roller 9, tension sensor detection fixing roller 19, metering encoder and is crossed under roller pole-piece pole-ear before crossing roller 22 and secondary volume needle
It smooths final lead into of plate 25 to assist in rolling needle mechanism station mounting base 30 and real-time rolling needle mechanism revolution frame 33, completes single
Needle winding is rolled up, continues after single coiling to start to unreel servo motor 3 and complete subsequently roll up needle and winds, is during which lived under tension cache mechanism
It moved on roller 15 and tension cache mechanism activity to cross roller 17 mutually volume needle coiling is square structure by operating up and down, here it is this
The use process of constant speed winding volume needle combined mechanism.
Although this practicality is described in detail with reference to the foregoing embodiments, for those skilled in the art,
It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc.
With replacing, all within the spirit and principle of this practicality, any modification, equivalent replacement, improvement and so on should be included in this
Within practical protection domain.
Claims (4)
1. a kind of constant speed winding volume needle combined mechanism, including unreel correction executing mechanism（1）, it is characterised in that：Described unreel is entangled
Inclined executing agency（1）Top sidewall is provided with mechanical expansion shaft mechanism（2）, mechanical expansion shaft mechanism（2）Top sidewall, which is equipped with, puts
Roll up servo motor（3）, described to unreel servo motor（3）Lateral wall is provided with battery pole piece（4）, battery pole piece（4）Right side wall
It is fixed with first and unreeled roller（5）, and first unreeled roller（5）Top, which is provided with, unreeled roller support plate（6）, described to unreel
Roller support plate（6）Lateral wall, which is connected with, unreels pole piece（7）, unreel pole piece（7）Top, which is connected with pole piece, to be crossed roller lug and smooths plate A
（8）, and pole piece crosses roller lug and smooths plate A（8）Upper side wall is equipped with pole piece and crosses roller（9）, the pole piece crosses roller（9）Left side wall is arranged
There is pole piece to cross roller lug and smooths plate B（10）, pole piece crosses roller lug and smooths plate B（10）Top sidewall is equipped with lug and smooths adjusting
Mechanism（11）, and lug smooths regulating mechanism（11）Top is equipped with pole piece dedusting mechanism（12）, the pole piece dedusting mechanism
（12）It is internally provided with pole piece dedusting dust sucting pipeline（13）With pole piece dedusting gassing pipe（14）, and pole piece dedusting mechanism（12）On
Roller is crossed in activity under the fixed tensioned cache mechanism in side（15）, under the tension cache mechanism activity cross roller（15）Top, which is equipped with, opens
Power buffer module（16）, tension buffer module（16）Top sidewall is arranged activity on tensioned cache mechanism and crosses roller（17）, and
Roller is crossed in activity on tension cache mechanism（17）Right side wall is provided with tension load cell（18）, the tension load cell
（18）Right side is provided with tension sensor detection fixing roller（19）, tension sensor detection fixing roller（19）Right side is equipped with meter
Roller is crossed before rice encoder roller group（20）, and roller is crossed before metering encoder roller group（20）Lower section is provided with metering encoder（21）, institute
State metering encoder（21）Lower section is provided with metering encoder and crosses roller（22）, metering encoder crosses roller（22）Bottom sidewall is arranged
There is metering encoder prefabricating plate（23）, and metering encoder prefabricating plate（23）Bottom sidewall is equipped with metering encoder prefabricating plate pressure
Tight cylinder（24）, the metering encoder（21）Right side is provided with before secondary volume needle under roller pole-piece pole-ear excessively and smooths plate（25）,
It is crossed before secondary volume needle under roller pole-piece pole-ear and smooths plate（25）Top sidewall is provided with before secondary volume needle on roller pole-piece pole-ear excessively and smooths
Plate（26）, and crossed before secondary volume needle and smooth plate on roller pole-piece pole-ear（26）Top sidewall crosses roller pole piece pole before being equipped with secondary volume needle
Angular adjustment, which is smoothed, under ear crosses roller mechanism（27）, cross before the secondary volume needle under roller pole-piece pole-ear and smooth plate（25）Right side is equipped with
Roller is crossed before secondary volume needle（28）, roller is crossed before secondary volume needle（28）Lower section is provided with auxiliary rolling needle mechanism（29）, and secondary volume needle
Mechanism（29）Lateral wall is provided with auxiliary rolling needle mechanism station mounting base（30）, the auxiliary rolling needle mechanism station mounting base（30）
Lower section is provided with the first real-time rolling needle mechanism and retreats station mechanism（31）, the first real-time rolling needle mechanism retrogressing station mechanism（31）
It is internally connected with real-time rolling needle mechanism（32）, and real-time rolling needle mechanism（32）Lateral wall is connected with real-time rolling needle mechanism（33）, institute
State real-time rolling needle mechanism（33）Bottom is provided with the second real-time rolling needle mechanism and retreats station mechanism（34）, and second rolls up needle machine in real time
Structure retreats station mechanism（34）Inside is equipped with the real-time rolling needle mechanism of third and retreats station mechanism（35）.
2. a kind of constant speed winding volume needle combined mechanism according to claim 1, it is characterised in that：The battery pole piece（4）
By unreeling pole piece（7）With real-time rolling needle mechanism（33）It is connected with each other.
3. a kind of constant speed winding volume needle combined mechanism according to claim 1, it is characterised in that：The tension cache mechanism
Roller is crossed in lower activity（15）Roller is crossed with activity on tension cache mechanism（17）It is provided with 2 groups, and activity under tension cache mechanism altogether
Roller（15）Roller is crossed with activity on tension cache mechanism（17）About tension buffer module（16）Lateral symmetry axis installation symmetrical above and below.
4. a kind of constant speed winding volume needle combined mechanism according to claim 1, it is characterised in that：Described first rolls up needle in real time
Mechanism retreats station mechanism（31）With real-time rolling needle mechanism（32）Station mechanism is retreated with the second real-time rolling needle mechanism（34）With
Three real-time rolling needle mechanisms retreat station mechanism（35）About real-time rolling needle mechanism（33）Lateral symmetry axis installation symmetrical above and below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820316811.6U CN207967214U (en) | 2018-03-08 | 2018-03-08 | A kind of constant speed winding volume needle combined mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820316811.6U CN207967214U (en) | 2018-03-08 | 2018-03-08 | A kind of constant speed winding volume needle combined mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207967214U true CN207967214U (en) | 2018-10-12 |
Family
ID=63741542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820316811.6U Active CN207967214U (en) | 2018-03-08 | 2018-03-08 | A kind of constant speed winding volume needle combined mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207967214U (en) |
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2018
- 2018-03-08 CN CN201820316811.6U patent/CN207967214U/en active Active
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