CN104464981B - Ceramic electric wire/cable core manufacturing system - Google Patents
Ceramic electric wire/cable core manufacturing system Download PDFInfo
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- CN104464981B CN104464981B CN201410845122.0A CN201410845122A CN104464981B CN 104464981 B CN104464981 B CN 104464981B CN 201410845122 A CN201410845122 A CN 201410845122A CN 104464981 B CN104464981 B CN 104464981B
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Abstract
The invention discloses a ceramic electric wire/cable core manufacturing system. The ceramic electric wire/cable core manufacturing system comprises a longitudinal rotary wrapping mechanism and a twisting coating mechanism. The longitudinal rotary wrapping mechanism is formed by connecting equipment and at least one band storing and feeding unit (20) in series, wherein the equipment comprises a wire storage and pay-off unit (10), at least one longitudinal rotary wrapping unit (30), at least one sheath layer extrusion unit (40), a cold and hot unit (50), a high-voltage spark machine (60) and a take-up unit (70), and the wire storage and pay-off unit (10), the longitudinal rotary wrapping unit (30), the sheath layer extrusion unit (40), the cold and hot unit (50), the high-voltage spark machine (60) and the take-up unit (70) are connected in series. The twisting coating mechanism is composed of equipment comprising a wire storage and pay-off unit (10), at least one twisting unit (100), at least one sheath layer extrusion unit (40), a cold and hot unit (50), a high-voltage spark machine (60) and a take-up unit (70), wherein the wire storage and pay-off unit (10), the twisting unit (100), the sheath layer extrusion unit (40), the cold and hot unit (50), the high-voltage spark machine (60) and the take-up unit (70) are connected in series.
Description
Technical field
The invention belongs to electric wire, technical field of cable, are related to one kind and are suitable to be manufactured with Ceramic silicon rubber composite band
The manufacture system of electric wire/cable core.
Background technology
In recent years, with the invention of Ceramic silicon rubber, it is adapted to manufacture and sends out for the periphery of aero-engine, spacecraft
Penetrate with reclaim, industry and the electric wire of civil buildings every field electric power system, can be in thousands of Celsius temperatures or accidental fire
The fireproof grade of electric wire, normal power supply reliability are brought up to unprecedented liquid and are put down by the extreme environment of calamity.
However, if directly extruding electric wire using Ceramic silicon rubber, in order to avoid Ceramic silicon rubber is squeezed
Cladding surface is cracked and can only extrude speed production with relatively low, reduces the work efficiency of original electric wire production equipment, meeting
Carbon emission amount is caused to increase a series of problems, such as increasing with production cost, this is a lack of competitiveness on civil electric wire cable market
's.
Although in addition, hard ceramics being converted under flame ablation of the Ceramic silicon rubber more than 600 DEG C, being kept
The flat simultaneously energy normal power supply of reliable iknsulating liquid, but at the initial stage for running into fire, Ceramic silicon rubber body temperature can experience
In the stage of one " rising to 600 DEG C of high temperature above by room temperature ", 330 DEG C therein～600 DEG C of temperature transition time is although short
Temporarily, but Ceramic silicon rubber intensity during this period can decline, especially electric wire be arranged on be squeezed, or have it is additional should
Power or the intensity of a fire itself are formed in the environment of washing away air-flow strongly, then the insulating reliability that high temperature is powered may not necessarily be ensured compliance with and be set
The requirement of meter.
In order to overcome Ceramic silicon rubber it is above-mentioned 2 points it is not enough, in patent CN202495311U, CN202454356U and
Again invented in CN202473445U can be at full speed prefabricated ceramic fireproof composite band, by Ceramic silicon rubber and glass
Glass cloth is complex as a whole, and can be used for the cladding of electric wire/cable core, has both improved the intensity of Ceramic silicon rubber, turn avoid directly
The crackle tendency on surface when extruding Ceramic silicon rubber, improve Ceramic silicon rubber covered electric cable/cable core compactness and
Insulating properties.
For this reason, it may be necessary to invent a kind of method again（Also referred to as technique）If, by electric wire manufacturer original winding
Equipment in addition appropriate little improvement, it is possible to realize the high speed production of ceramic electric wire, fully demonstrate ceramic electric wire electricity
Competitiveness of the cable on future market.
The content of the invention
It is an object of the invention to provide a kind of ceramic electric wire/cable core manufacture system, difficult to solve existing equipment
To realize a difficult problem for ceramic electric wire high-speed production, technical scheme is as follows：
Ceramic electric wire/cable core manufacture system provided by the present invention, including：Longitudinal rotary packing machine structure and voluble wrapping machine
Structure；Longitudinal rotary packing machine structure has the storage pay-off unit being sequentially connected in series（10）, at least one longitudinal direction rotation bag unit（30）, at least
A set of restrictive coating extrusion unit（40）, cold and hot unit（50）, high tension spark machine（60）, take-up unit（70）Equipment and at least
Tape cell is fed in one storage（20）It is formed in parallel；The voluble wrapping mechanism has the storage pay-off unit being sequentially connected in series（10）, at least
One winding unit（100）, at least a set of restrictive coating extrusion unit（40）, cold and hot unit（50）, high tension spark machine（60）, take-up
Unit（70）Equipment constitute.
Preferably, the storage pay-off unit has actively or passively payingoff mechanism, electric wire/cable core and wire storage device, puts
Line mechanism adopts MCU or PLC control linear velocities and tension force, wire storage device using at least one dynamic sliding running roller B and fixed sliding roller wheel A and
The combination of its mass, dynamic sliding running roller B enable sliding running roller B and its mass certainly using horizontal or vertical space layout mode
By moving.
Preferably, the longitudinal direction rotation bag unit at least has fixed sliding roller wheel group E and loudspeaker beam bag mould, with electric wire/cable
The direct of travel of core is sequence, and fixed sliding roller wheel group E is series at the upstream of loudspeaker beam bag mould, loudspeaker beam bag mould and is series at extrusion again
The upstream of unit, it is certain to stagger away from least two fixed sliding roller wheels in nearest fixed sliding roller wheel group E in loudspeaker beam bag mould upstream
Distance and certain angle be spirally distributed on the circumference with electric wire/cable core as axle center and fixed sliding roller wheel group E running roller arc
Electric wire/cable core is wrapped up by appearance by coiled composite into circular arc or cylindrical shape, and loudspeaker beam bag mould inside structure is by smooth
Loudspeaker pipeline and containing ball constant diameter sleeve linking form, the appearance of loudspeaker beam bag mould is also enclosed and has wrapped electric heating or circulating liquid
Thermostat, for some composite bands, electric heating or circulating liquid thermostat can be default.
Preferably, the restrictive coating is by the macromolecule material with electric wire/cable heart yearn speed sync of extrusion unit extrusion
Material clad simultaneously makes the composite band being wrapped on electric wire/cable core in production and application process or runs under fire condition
The mechanical electric protective layer without unclamping or belonging to increase is permanently fixed, the material of restrictive coating includes crosslinking with radiation or chemistry
The polyolefin rubber-plastics material of crosslinking or silicone rubber or thermoplasticity rubber-plastics material or combinations thereof.
Preferably, the extrusion unit is commercially available extruder and its supporting extrusion die component.
Preferably, the cold and hot unit includes：Liquid interlayer cylinder with circulation power or cell body, the height with access way
Incubator body or tunnel；The use temperature of cold and hot unit between -20 DEG C～50 DEG C and 50 DEG C～300 DEG C scopes and can connect respectively
It is continuous to adjust and control；As sequence, liquid interlayer cylinder is series at the upper of high temperature casing or tunnel to direct of travel with electric wire/cable core
Trip or downstream, electric wire/cable core are walked or are wound from the passage cathetus in liquid interlayer cylinder and high temperature casing or tunnel and walked
And mistake；For some products, cold and hot unit can be default.
Preferably, general insulating properties of the high tension spark machine using commercially available running voltage up to more than 6000V is detected
Machine.
Preferably, the take-up unit includes strand oscillator and active winder, and active winder adopts MCU or PLC to control
Linear velocity and tension force.
Preferably, the storage is fed tape cell and includes actively or passively putting band mechanism, composite band and storage belting, puts band mechanism
Using MCU or PLC control linear velocities and tension force, storage belting is using at least one pair of movable pulley D and fixed sliding roller wheel C and its mass
Combination, movable pulley D enables movable pulley D and its mass to move freely using horizontal or vertical space layout mode, giving birth to
When product speed is relatively low, storage belting can be default.
Preferably, the winding unit includes strip feeding machine structure, revolution hollow axle, support and revoluting motor；Strip feeding machine structure is again
Including composite band reel, clutch, damping driven axle or spinning motor drive shaft；Composite band reel is enclosed within one end axle of clutch
On, the other end axle of clutch couple with damping driven axle or spinning motor drive shaft by shaft coupling, damp driven axle or oneself
Rotating motor drive shaft is fixed on revolution hollow axle, and revolution hollow axle passes through gear or belt or chain is coupled with revoluting motor
And power is obtained, electric wire/cable core advances to extrusion unit through revolution hollow axle.
Preferably, the composite band include Ceramic silicon rubber composite band described by the patents such as CN202473445U or its
The strip material that its rubber-plastics material is combined with fibrous material.
Preferably, the electric wire/cable core includes single or multicore, bare conductor or insulating barrier conductor, armor conductor
Any one combines.
The course of work of longitudinal rotary packing machine structure is：The direct of travel of ceramic composite band is advanced with electric wire/cable core
Axis parallel, using one or more longitudinally rotation bag units make ceramic coiled composite into longitudinal cylinder of single or multiple lift
Electric wire/cable core is wrapped up, after and then being tightened by the loudspeaker beam bag mould in downstream, while by the restrictive coating from extrusion unit
Vertical will be bundled into fruit fixed-type, and cold and hot unit can also be skipped through cold and hot unit, be then passed through high tension spark machine to detect ceramics
Change the insulating properties of composite band clad, finally enter take-up unit.
The course of work of the voluble wrapping mechanism is：Using one or more winding units by single or multiple lift ceramic
Composite band is wrapped in the appearance of electric wire/cable core, while it is fixed-type vertical will to be bundled into fruit by the restrictive coating from extrusion unit, wears
Supercool hot cell is further shaped and can also skip cold and hot unit, is then passed through high tension spark machine to detect that ceramic composite band is coated
The insulating properties of layer, finally enters take-up unit.
A kind of beneficial effect of ceramic electric wire/cable core manufacture system of the present invention is：
Using longitudinal direction rotation bag unit mechanisms or winding unit mechanism, beam bag mould and the commercially available rubber and plastic extrusion of innovative design
Unit combines, and technological equipment is extremely simple but to avoid surface product when directly extruding electric wire/cable core with Ceramic silicon rubber
The tendency of raw crackle, has reached high-quality, high speed, the purpose of continuous prodution ceramic electric wire/cable core, and has been suitable for
Extensive industrialization, is the large scale application of Ceramic silicon rubber and ceramic fireproof composite band, is electric wire
Update, improve the market competitiveness create new technical advantage.
Description of the drawings
Fig. 1 is the schematic diagram of the embodiment 1 of longitudinal rotary packing machine structure of ceramic electric wire/cable core manufacture system of the present invention.
Fig. 2 is the schematic diagram of the embodiment 2 of the voluble wrapping mechanism of ceramic electric wire/cable core manufacture system of the present invention.
In fig. 1 and 2, identical function, component or mechanism employ identical label：
10-storage pay-off unit (includes all components of sequence number 11 to 14）：
11-electric wire/cable core；12-payingoff mechanism；13-fixed sliding roller wheel A；14-dynamic sliding running roller B.
Tape cell is fed in 20-storage (includes all components of sequence number 21 to 23）：
21-fixed sliding roller wheel C；22-movable pulley D；23-composite band；24-put band mechanism.
30-longitudinal direction rotation bag unit (includes all components of sequence number 31 and 33）：
31-fixed sliding roller wheel E；32-loudspeaker beam bag mould；33-thermostat.
40-extrusion unit；50-cold and hot unit；60-high tension spark machine；
70-take-up unit (includes that all components of sequence number 71 to 73 are constituted）：
71-tension control mechanism；72-strand oscillator；73-active rolling-up mechanism.
100-winding unit；110-strip feeding machine structure；111-damping driven axle or spinning motor drive shaft；
112-clutch；113-reel；120-revolution hollow axle；130-support；
140-revoluting motor.
Specific embodiment
It is below two embodiments of " a kind of ceramic electric wire/cable core manufacture system " of the invention, is only that part is preferred
State restriction not to present invention, further illustrates in conjunction with accompanying drawing：
Embodiment 1
Fig. 1 is referred to, longitudinal rotary packing machine structure of ceramic electric wire/cable core manufacture system of the present invention is there is disclosed（Implement
Example 1）, including the longitudinal direction of the storage pay-off unit being sequentially connected in series 10, rotation bag unit 30, a set of restrictive coating extrusion unit 40, cold and hot
Unit 50, high tension spark machine 60, the system equipment of take-up unit 70 feed tape cell 20 with storage in parallel.
Storage pay-off unit 10 includes that active payingoff mechanism 12, electric wire/cable core 11, a pair dynamic sliding running roller B 14 and three are fixed
Sliding running roller A 13, payingoff mechanism 12 controls linear velocity and tension force using MCU, enables sliding running roller B 14 using vertical disposition
It is enough freely up and down to move.
Bag unit 30 is revolved in longitudinal direction includes four fixed sliding roller wheel groups E 31, loudspeaker beam bag mould 32 and electric wire/cable core 11,
As sequence, fixed sliding roller wheel group E 31 is series at the upstream of loudspeaker beam bag mould 32, loudspeaker beam to direct of travel with electric wire/cable core 11
Bag mould 32 is series at the upstream of extrusion unit 40 again；In four fixed sliding roller wheel groups E 31 each the distance of interval 50mm, with electricity
Line/cable core 11 is 90 degree for the angle in the center of circle and is spirally distributed on the circumference with electric wire/cable core as axle center and four fixed
Electric wire/cable core is wrapped up by the running roller arc appearance of sliding roller set E 31 by coiled composite into cylinder；Loudspeaker beam bag mould 32
Internal structure is formed with the equal diameter pipe seamless connection with ball by smooth loudspeaker pipeline, the appearance of loudspeaker beam bag mould 32
Also enclose and wrapped electrothermic constant temperature equipment 33.
Complex of the material of restrictive coating for the Ceramic silicon rubber and short glass fiber of 40 extrusion of extrusion unit.
Cold and hot unit 50 includes circulating water chennel and the high-temperature constant heat tunnel with access way, and circulating water chennel is located at high-temperature constant heat
The downstream in tunnel, 2.0 m of recirculated water flute length, wide 0.30 m, deep 0.30 m, 0.06～6.0 m3/h of water circulation amount arbitrarily can be adjusted
Section, 5～35 DEG C of coolant-temperature gage, 20 m of high-temperature constant heat tunnel inside dimension length, wide 0.30 m, deep 0.30 m, 50～250 DEG C of temperature can be appointed
Meaning is adjusted and arranges air-dry apparatus in the downstream of recirculated water flute length.
High tension spark machine 60 can be general insulating properties detection machine of the commercially available running voltage up to more than 6000V.
Take-up unit 70 includes strand oscillator 72, active winder 73, and active winder 73 is using MCU control linear velocities and opens
Power.
Embodiment 2
Fig. 2 is referred to, the voluble wrapping mechanism of ceramic electric wire/cable core manufacture system of the present invention is there is disclosed（Implement
Example 2）, including the storage pay-off unit 10 being sequentially connected in series, using two winding units 100, a set of restrictive coatings clockwise and anticlockwise
Extrusion unit 40, cold and hot unit 50, high tension spark machine 60, take-up unit 70 " system is equipped.
Pay-off unit 10 includes active paying out machine 12, electric wire/cable core 11 and tension control system 71, tension control system
71 are placed in take-up end, and payingoff mechanism 12 and tension control system 71 control linear velocity and tension force using PLC.
Winding unit 100 includes strip feeding machine structure 110, revolution hollow axle 120, support 130 and revoluting motor 140；With electric wire/
The direct of travel of cable core 11 is sequence, two groups of winding units 100 close to and be series at the upstream of extrusion unit 40；Strip feeding machine structure
110 include composite band reel 113, magnetic powder cluth 112, spinning motor drive shaft 111 again；Reel 113 is enclosed within magnetic powder cluth
On 112 one end axle, the other end axle of magnetic powder cluth 112 is coupled with spinning motor drive shaft 111 by shaft coupling, rotation electricity
Machine drive shaft 111 is fixed on revolution hollow axle 120, and revolution hollow axle 120 passes through gear or belt or chain with revolution electricity
Machine 140 couples and obtains power, and electric wire/cable core 11 sequentially passes through revolution hollow axle 120 and advances to extrusion unit 40, cold and hot list
Unit 50, high tension spark machine 60, until take-up unit 70.
Composite band 23 can be the Ceramic silicon rubber composite band described by patent such as CN202473445U.
Electric wire/cable core 11 is many bare conductors of single.
A kind of ceramic electric wire/cable core manufacture system of the present invention is revolved bag unit mechanisms using the longitudinal direction of innovative design or is twined
Combine with commercially available rubber and plastic extrusion unit around unit mechanisms, beam bag mould, technological equipment is extremely simple but to avoid directly use
The tendency that surface cracks when Ceramic silicon rubber extrudes electric wire/cable core, has reached high-quality, high speed, continuous metaplasia
The purpose of ceramic electric wire/cable core is produced, and is suitable for extensive industrialization, be that Ceramic silicon rubber and ceramic fire prevention are resistance to
The large scale application of fiery composite band is the update of electric wire, improving the market competitiveness, to create new technology excellent
Gesture.
Claims (3)
1. a kind of ceramic electric wire/cable core manufacture system, including：Longitudinal rotary packing machine structure and voluble wrapping mechanism；The longitudinal direction
Rotary packing machine structure has the storage pay-off unit being sequentially connected in series（10）, at least one longitudinal direction rotation bag unit（30）, at least a set of restrictive coating
Extrusion unit（40）, cold and hot unit（50）, high tension spark machine（60）, take-up unit（70）Equipment and at least one storage feed band
Unit（20）It is formed in parallel；The voluble wrapping mechanism has the storage pay-off unit being sequentially connected in series（10）, at least one winding it is single
Unit（100）, at least a set of restrictive coating extrusion unit（40）, cold and hot unit（50）, high tension spark machine（60）, take-up unit（70）'s
Equipment is constituted；It is characterized in that：The longitudinal direction rotation bag unit（30）At least there is fixed sliding roller wheel E（31）With loudspeaker beam bag mould
（32）, the direct of travel with electric wire/cable core as sequence, fixed sliding roller wheel E（31）It is series at loudspeaker beam bag mould（32）Upstream, loudspeaker
Beam bag mould（32）Extrusion unit is series at again（40）Upstream, away from loudspeaker beam bag mould（32）The nearest fixed sliding roller wheel in upstream
E（31）In at least two fixed sliding roller wheels staggering certain distance and certain angle is spirally distributed in and with electric wire/cable core is
On the circumference in axle center and fixed sliding roller wheel E（31）Running roller arc appearance make composite band（23）Circular arc or cylindrical shape are rolled into by electricity
Line/cable core parcel, loudspeaker beam bag mould（32）Internal structure is by smooth loudspeaker pipeline and the rank of the constant diameter sleeve containing ball
Connect and form, loudspeaker beam bag mould（32）Appearance also enclose and wrapped electric heating or circulating liquid thermostat（33）.
2. ceramic electric wire/cable core manufacture system according to claim 1, is characterized in that：Longitudinal rotary packing machine structure and twine
Around the cold and hot unit of cladding mechanism（50）Including：Liquid interlayer cylinder with circulation power or cell body, the high temperature with access way
Casing or tunnel；Cold and hot unit（50）Use temperature respectively between -20 DEG C～50 DEG C and 50 DEG C～300 DEG C scopes and can be with
Continuously adjust and control；As sequence, liquid interlayer cylinder is series at high temperature casing or tunnel to direct of travel with electric wire/cable core
Upstream or downstream, electric wire/cable core are walked or are wound from the passage cathetus in liquid interlayer cylinder and high temperature casing or tunnel and worn
Go and mistake.
3. ceramic electric wire/cable core manufacture system according to claim 1, is characterized in that：The winding unit（100）Including
Strip feeding machine structure（110）, revolution hollow axle（120）, support（130）And revoluting motor（140）；Strip feeding machine structure（110）Include again multiple
Crossed belt reel（113）, clutch（112）, damping driven axle or spinning motor drive shaft (111)；Composite band reel（113）It is enclosed within
Clutch（112）One end axle on, clutch（112）Other end axle by shaft coupling with damping driven axle or spinning motor drive
Moving axis (111) couples, and damping driven axle or spinning motor drive shaft (111) are fixed on revolution hollow axle（120）On, revolution is empty
Heart axle（120）Coupled with revoluting motor (140) by gear or belt or chain and obtain power, electric wire/cable core is through public affairs
Turn hollow axle and advance to extrusion unit（40）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410845122.0A CN104464981B (en) | 2014-12-31 | 2014-12-31 | Ceramic electric wire/cable core manufacturing system |
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|---|---|---|---|
| CN201410845122.0A CN104464981B (en) | 2014-12-31 | 2014-12-31 | Ceramic electric wire/cable core manufacturing system |
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| CN104464981B true CN104464981B (en) | 2017-04-19 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862795B (en) * | 2015-05-06 | 2017-04-12 | 黎中华 | Multi-lateral flat winding-type wire collection system and wire collecting method thereof |
| CN109326389B (en) * | 2018-09-25 | 2021-11-26 | 中国电力科学研究院有限公司 | Superconducting tape insulating and extruding system |
| CN109801761B (en) * | 2019-03-26 | 2020-06-26 | 焦作铁路电缆有限责任公司 | Processing technology and processing system for longitudinal wrapping of flame-retardant cable |
| CN111570560B (en) * | 2020-05-25 | 2021-10-22 | 中国科学院国家空间科学中心 | Preforming device for open thin-walled tube |
| CN111584156B (en) * | 2020-06-02 | 2021-09-07 | 常州久藤电气有限公司 | Winding displacement device for enameled wire production line |
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| CN201489917U (en) * | 2009-08-11 | 2010-05-26 | 天津经纬电材股份有限公司 | High-speed wrapping machine |
| CN104112539A (en) * | 2013-04-19 | 2014-10-22 | 江苏亨通线缆科技有限公司 | Processing device used for communication high-speed data cables |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5290567A (en) * | 1976-01-26 | 1977-07-29 | Furukawa Electric Co Ltd | Method and device for controlling speed of extruder tandem line |
| CN102280200A (en) * | 2011-05-19 | 2011-12-14 | 江苏句容联合铜材有限公司 | Device for preventing enamelled conductor from break |
| CN102842385B (en) * | 2012-09-03 | 2015-08-19 | 北京亨通斯博通讯科技有限公司 | The method that cable integration is produced |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201489917U (en) * | 2009-08-11 | 2010-05-26 | 天津经纬电材股份有限公司 | High-speed wrapping machine |
| CN104112539A (en) * | 2013-04-19 | 2014-10-22 | 江苏亨通线缆科技有限公司 | Processing device used for communication high-speed data cables |
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Address after: 518118 Vol Industrial Park, Lanjingbei Road, Pingshan New Area, Shenzhen City, Guangdong Province Patentee after: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee after: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee after: CHANGZHOU WOER HEAT-SHRINKABLE MATERIAL Co.,Ltd. Patentee after: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee after: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Address before: 518118 Vol Industrial Park, Lanjingbei Road, Pingshan New Area, Shenzhen City, Guangdong Province Patentee before: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee before: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee before: JINTAN WOER NEW MATERIAL Co.,Ltd. Patentee before: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee before: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. |
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Effective date of registration: 20210616 Address after: 518118 Wool Industrial Park, Lanjing North Road, Longtian Street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee after: CHANGZHOU WOER HEAT-SHRINKABLE MATERIAL Co.,Ltd. Address before: 518118 Vol Industrial Park, Lanjingbei Road, Pingshan New Area, Shenzhen City, Guangdong Province Patentee before: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Patentee before: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee before: CHANGZHOU WOER HEAT-SHRINKABLE MATERIAL Co.,Ltd. Patentee before: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee before: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. |