CN106967869B - A kind of induction heat treatment flexible machining centre and its processing method - Google Patents
A kind of induction heat treatment flexible machining centre and its processing method Download PDFInfo
- Publication number
- CN106967869B CN106967869B CN201710273153.7A CN201710273153A CN106967869B CN 106967869 B CN106967869 B CN 106967869B CN 201710273153 A CN201710273153 A CN 201710273153A CN 106967869 B CN106967869 B CN 106967869B
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- inductive head
- quick change
- change handle
- heat treatment
- workpiece
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 47
- 238000003754 machining Methods 0.000 title claims abstract description 22
- 230000006698 induction Effects 0.000 title claims abstract description 15
- 238000003672 processing method Methods 0.000 title claims abstract description 7
- 230000001939 inductive effect Effects 0.000 claims abstract description 164
- 239000002826 coolant Substances 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 210000000078 claw Anatomy 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 208000036829 Device dislocation Diseases 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Induction Heating (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention relates to Field of Heat-treatment, more particularly to a kind of induction heat treatment flexible machining centre and its processing method, using the overall structure of machining center, including host, workbench, inductive head more changing device and coolant reservoirs, inductive head more changing device includes inductive head library and executing agency, the claw crawl inductive head quick change handle that can be automatically controled is provided on inductive head library, the inductive head of different size is installed on inductive head quick change handle, the present invention realizes the rapid-mounted of heat treatment inductive head using inductive head quick change handle, to realize the automation and flexibility at heat treatment process center, realize the Flexible Manufacture of the multi-step heat treatment to a workpiece, it is loaded without secondary, reduce heat treatment error, efficiency high stability is good, it is suitble to small lot multi-step heat treatment Flexible Manufacture.
Description
Technical field
The present invention relates to Field of Heat-treatment, and in particular to a kind of induction heat treatment flexible machining centre and its processing method.
Background technology
Flexible automation production technology abbreviation Flexible Manufacturing Technology, it is based on technological design, using Numeric Control Technology as core
The heart makes a response rapidly to the different demands of consumer, automatically complete enterprise multi items, the processing of more batches, manufacture,
The advanced production technology of the processes such as assembly, detection reduces cost while improving the yield and quality of product.In automobile, drag
On the assembly lines such as machine drawing, internal combustion engine, lathe, the mechanical processing of metal realizes Flexible Production already, but in Field of Heat-treatment
Always a vacancy.
Application number CN201310221942.8- fully automatic loop flexibility quenching press discloses a kind of rotary type tower multistation and quenches
Range, a set of heat treatment mechanism on each shelf can place multiple workpiece and realize multistation while processing simultaneously, but not
It can realize the multi-step heat treatment Flexible Manufacture using different inductive heads of a workpiece.
Invention content
The present invention is to solve single part multi-step heat treatment craft flexibility processing problems, it is proposed that a kind of heat treatment inductive head
Quick change construction enables machining center to be replaced automatically according to heat treatment requirements, to realize the flexibility processing of heat treatment.
The present invention in order to solve the above technical problems, the technical solution used for：A kind of induction heat treatment flexible machining centre,
Including host, workbench, inductive head more changing device and coolant reservoirs；Coolant reservoirs installation inside the lower section of workbench, host
There are heating system, cooling system and the control system controlled entire machining center, host to pacify towards the side of workbench
Equipped with can be along the inductive head mounting bracket that Z axis moves, inductive head mounting bracket be equipped with workpiece cooling spray and inductive head quick change handle
Mounting hole, workpiece cooling spray are connect with cooling system water route, and inductive head quick change handle mounting hole is two holes, and two holes are mutual
Insulation, bottom hole is electrically connected with heating system, and bottom hole is provided with through-hole and is connect with cooling system water route；Workbench includes workpiece peace
The workpiece translational motion device shelved and workpiece mounting bracket can be driven to be moved along X-axis and Y-axis；Inductive head more changing device includes inductive head
Library, driving mechanism, column and translating device, inductive head library are mounted in driving mechanism, and driving mechanism is mounted on column, column
On translating device, inductive head library include a disk, installed on the excircle of disk multiple claws for capture sense
Answer a quick change handle；Inductive head quick change handle is made of left and right two parts, and insulation board, left and right two parts point are accompanied between the two parts of left and right
It is not provided with the through-hole connection that through-hole and inductive head the quick change handle mounting hole bottom hole among through-hole and inductive head are opened, forms coolant liquid water
Inductive head is locked by retaining mechanism I in road, inductive head quick change handle one end, and the other end is inserted into inductive head quick change handle mounting hole,
And it is locked by retaining mechanism II.
Further, gasket is accompanied between the inductive head quick change handle and the bottom of inductive head quick change handle mounting hole, it is described
Gasket is made of conductor；It is provided with through-hole among the gasket, ensures the unimpeded of coolant liquid water route.
Further, the inductive head quick change handle is provided with taper hole and inductive head cone match, and retaining mechanism I, which will be jackscrew, to be felt
Head is answered to lock.
Further, after the inductive head quick change handle is inserted into inductive head quick change handle mounting hole, retaining mechanism II is upper and lower two
A jacking block fastens inductive head quick change spindle clamp.
Further, the another embodiment in inductive head library of the present invention, using primary and secondary disc structure, in the circumference of stamper
The upper multiple sub-disks of installation, each sub-disk circumferentially install multiple claws.
A kind of processing method of induction heat treatment flexible machining centre, is carried out using following steps：
（1）The inductive head that the rotation of inductive head library makes current manufacturing procedure need, which is located at, prepares station B；
（2）Inductive head library makes inductive head quick change handle be directed at inductive head quick change handle mounting hole along the translation of X-axis negative direction；
（3）Inductive head library is moved along Y-axis positive direction makes inductive head quick change handle be inserted into inductive head quick change handle mounting hole, then locks
About II two jacking block of tight mechanism fastens inductive head quick change spindle clamp；
（4）The claw in inductive head library unclamps inductive head quick change handle, is then moved along X-axis positive direction and exits machining area；
（5）Mounted on workpiece mounting bracket workpiece under the drive of workpiece translational motion device close to inductive head；
（6）Inductive head energization water flowing is heat-treated；
（7）Workpiece moves release machining area under the drive of workpiece translational motion device along Y-axis negative direction after the completion of heat treatment；
（8）Inductive head library is moved along X-axis negative direction, clamps inductive head quick change handle with claw, then retaining mechanism II unclamps
Inductive head quick change handle is clamped, inductive head library moves along Y-axis negative direction and takes out inductive head quick change handle；
（9）The rotation of inductive head library makes the inductive head alignment inductive head quick change handle mounting hole that the next step needs；
（10）Repeat step（3）-（9）Heat treatment Flexible Manufacture is carried out to workpiece using different inductive heads；
（11）After the completion of heat treatment, inductive head library moves along X-axis positive direction and exits machining area.
Beneficial effects of the present invention：The present invention uses the overall structure of machining center, devises an inductive head library,
The rapid-mounted that heat treatment inductive head is realized using inductive head quick change handle, to realize the automatic of heat treatment process center
Change, to the Flexible Manufacture of the multi-step heat treatment of a workpiece, is loaded without secondary, reduces heat treatment error, efficiency high stable
Property is good.
Description of the drawings
The front view of Fig. 1 present invention；
The vertical view of Fig. 2 present invention；
Fig. 3 inductive head quick change handle cross-sectional operational views of the present invention；
The A of Fig. 4 Fig. 3 of the present invention is to sectional view；
The another embodiment in the inductive head libraries of the present invention Fig. 5.
Reference numeral：1- hosts, 2- workbench, 3- inductive heads more changing device, 4- coolant reservoirs, 5- heating systems, 6- are cold
But system, 7- inductive heads mounting bracket, 8- workpiece cooling spray, 9- inductive head quick change handles mounting hole, 10- workpiece mounting bracket, 11- works
Part translating device, 12- inductive heads library, 13- driving mechanisms, 14- columns, 15- translating devices, 16- claws, 17- inductive head quick changes
Handle, 18- inductive heads, 19- retaining mechanisms I, 20- retaining mechanisms II, 21- gaskets, 22- insulation boards, 23- coolant liquids water route, 24- controls
System processed.
Specific implementation mode
Invention is further explained below in conjunction with the accompanying drawings.
A kind of induction heat treatment flexible machining centre as shown in Figure 1, Figure 2 and Figure 3, including host 1, workbench 2, inductive head
More changing device 3 and coolant reservoirs 4；The coolant reservoirs 4 below workbench 2, the inside of the host 1 be equipped with heating system 5,
Cooling system 6 and the control system 24 controlled entire machining center, the side of host 1 towards workbench 2 are equipped with energy
Enough inductive head mounting brackets 7 moved along Z axis, the inductive head mounting bracket 7 are equipped with workpiece cooling spray 8 and inductive head quick change handle
Mounting hole 9, the workpiece cooling spray 8 are connect with 6 water route of cooling system, and the inductive head quick change handle mounting hole 9 is two holes,
And two hole mutually insulateds, bottom hole are electrically connected with heating system 5, and bottom hole is provided with through-hole and is connect with 6 water route of cooling system；Institute
State the workpiece mounting bracket 10 and the workpiece that workpiece mounting bracket 10 can be driven to be moved along X-axis and Y-axis that workbench 2 includes installation workpiece
Translating device 11；The inductive head more changing device 3 includes inductive head library 12, driving mechanism 13, column 14 and translating device 15, institute
Inductive head library 12 is stated in driving mechanism 13, the driving mechanism 13 is mounted on column 14, and the column 14 is mounted on
Realize that X-axis and Y-axis movement, the inductive head library 12 use disc structure, installed on the excircle of disk on translating device 15
Multiple claws 16 are for capturing inductive head quick change handle 17；The inductive head quick change handle 17 is made of left and right two parts, left and right two
/ accompanying insulation board 22, left and right two parts have through-hole among through-hole and inductive head 18 and inductive head quick change handle is pacified
The through-hole connection that dress 9 bottom hole of hole is opened, forms coolant liquid water route 23, and when work, coolant liquid is sent into coolant liquid water route by cooling system 6
23, inductive head 18 is cooled down；Inductive head 18 is locked by retaining mechanism I 19 in described 17 one end of inductive head quick change handle, separately
One end is inserted into inductive head quick change handle mounting hole 9, and is locked by retaining mechanism II 20.
As shown in figure 3, accompanying gasket between the inductive head quick change handle 17 and the bottom of inductive head quick change handle mounting hole 9
21, the gasket 21 is made of conductor, plays conductive and sealing function；It is provided with through-hole among the gasket 21, ensures cooling
Liquid water route 23 it is unimpeded.
As shown in figure 4, the inductive head quick change handle 17 is provided with the cone match of taper hole and inductive head 18, retaining mechanism I 19
Inductive head 18 is locked for jackscrew.
After the inductive head quick change handle 17 is inserted into inductive head quick change handle mounting hole 9, retaining mechanism II 20 is upper and lower two tops
Inductive head quick change handle 17 is fixedly clamped by block.
As shown in figure 5, the another embodiment in inductive head library 12 of the present invention, using primary and secondary disc structure, in stamper
Multiple sub-disks are installed, each sub-disk circumferentially installs multiple claws 16 on circumference.
A kind of processing method of induction heat treatment flexible machining centre, follows the steps below：
（1）Inductive head library 12 rotates the inductive head 18 for making current manufacturing procedure need and is located at preparation station B；
（2）Inductive head library 12 is along X-axis negative direction（Referring to Fig. 2）Translation makes inductive head quick change handle 17 be directed at inductive head quick change handle
Mounting hole 9；
（3）Inductive head library 12 is along Y-axis positive direction（Referring to Fig. 2）It is mobile that inductive head quick change handle 17 is made to be inserted into inductive head quick change handle
Mounting hole 9, then about II 20 two jacking blocks of retaining mechanism inductive head quick change handle 17 is fixedly clamped；
（4）The claw 16 in inductive head library 12 unclamps inductive head quick change handle 17, is then moved along X-axis positive direction and exits processing district
Domain；
（5）Mounted on workpiece mounting bracket 10 workpiece under the drive of workpiece translational motion device 11 close to inductive head 18；
（6）18 energization water flowing of inductive head is heat-treated workpiece to be processed；
（7）Workpiece moves release machining area under the drive of workpiece translational motion device 11 along Y-axis negative direction after the completion of heat treatment；
（8）Inductive head library 12 is moved along X-axis negative direction, clamps inductive head quick change handle 17 with claw 16, then retaining mechanism
II 20 unclamp clamping inductive head quick change handle 17, and inductive head library 12 moves along Y-axis negative direction and takes out inductive head quick change handle 17；
（9）Inductive head library 12 rotates the inductive head 18 for making the next step need and is directed at inductive head quick change handle mounting hole 9；
（10）Repeat step（3）-（9）Heat treatment Flexible Manufacture is carried out to workpiece using different inductive heads；
（11）After the completion of heat treatment, inductive head library 12 moves along X-axis positive direction and exits machining area.
It makes any form of restriction, any those of ordinary skill in the art, if not departing from the present invention
In the range of carried technical characteristic, the equivalence enforcement that part is changed or modified is made using disclosed technology contents
Example, and without departing from the technical feature content of the present invention, in the range of still falling within the technology of the present invention feature.
Claims (6)
1. a kind of induction heat treatment flexible machining centre, it is characterised in that：Including host（1）, workbench（2）, inductive head replace
Device（3）And coolant reservoirs（4）；The coolant reservoirs（4）In workbench（2）Lower section, the host（1）The inside, which is equipped with, to be added
Hot systems（5）, cooling system（6）With the control system controlled entire machining center（24）, host（1）Towards workbench
（2）Be equipped with can be along the inductive head mounting bracket that Z axis moves for side（7）, the inductive head mounting bracket（7）It is cold to be equipped with workpiece
But nozzle（8）With inductive head quick change handle mounting hole（9）, the workpiece cooling spray（8）With cooling system（6）Water route connects, institute
State inductive head quick change handle mounting hole（9）For two holes, and two hole mutual insulatings, bottom hole and heating system（5）Electrical connection, and
Bottom hole is provided with through-hole and cooling system（6）Water route connects；The workbench（2）Including workpiece mounting bracket（10）With can band start building
Part mounting bracket（10）The workpiece translational motion device moved along X-axis and Y-axis（11）；The inductive head more changing device（3）Including inductive head
Library（12）, driving mechanism（13）, column（14）And translating device（15）, the inductive head library（12）Mounted on driving mechanism（13）
On, the driving mechanism（13）Mounted on column（14）On, the column（14）Mounted on translating device（15）On, the induction
Head library（12）Including a disk, installed on the excircle of disk multiple for capturing inductive head quick change handle（17）Claw
（16）；The inductive head quick change handle（17）It is made of left and right two parts, insulation board is accompanied between the two parts of left and right（22）, left and right two
Part has through-hole and inductive head（18）Intermediate through-hole and inductive head quick change handle mounting hole（9）The through-hole that bottom hole is opened connects
It is logical, form coolant liquid water route（23）；The inductive head quick change handle（17）One end passes through retaining mechanism I（19）By inductive head（18）Lock
Tightly, the other end is inserted into inductive head quick change handle mounting hole（9）In, and the mechanism II that is locked（20）Locking.
2. a kind of induction heat treatment flexible machining centre according to claim 1, it is characterised in that：The inductive head quick change
Handle（17）With inductive head quick change handle mounting hole（9）Bottom hole between accompany gasket（21）, the gasket（21）It is made of conductor；
The gasket（21）Centre is provided with through-hole, ensures coolant liquid water route（23）It is unimpeded.
3. a kind of induction heat treatment flexible machining centre according to claim 1, it is characterised in that：Inductive head quick change handle
（17）It is provided with taper hole and inductive head（18）Cone match, retaining mechanism I（19）It is jackscrew by inductive head（18）Locking.
4. a kind of induction heat treatment flexible machining centre according to claim 1, it is characterised in that：The inductive head quick change
Handle（17）It is inserted into inductive head quick change handle mounting hole（9）Afterwards, retaining mechanism II（20）It is upper and lower two jacking blocks by inductive head quick change handle
（17）It is fixedly clamped.
5. a kind of induction heat treatment flexible machining centre according to claim 1, it is characterised in that：Inductive head library（12）For
Primary and secondary disc structure, installs multiple sub-disks on the circumference of stamper, and each sub-disk circumferentially installs multiple claws（16）.
6. according to the processing method of any one induction heat treatment flexible machining centre described in claim 1 to 5, feature exists
In following the steps below：
（1）The inductive head that the rotation of inductive head library makes current manufacturing procedure need, which is located at, prepares station B；
（2）Inductive head library makes inductive head quick change handle be directed at inductive head quick change handle mounting hole along the translation of X-axis negative direction；
（3）Inductive head library is moved along Y-axis positive direction makes inductive head quick change handle be inserted into inductive head quick change handle mounting hole, then locks machine
About II two jacking block of structure fastens inductive head quick change spindle clamp；
（4）The claw in inductive head library unclamps inductive head quick change handle, is then moved along X-axis positive direction and exits machining area；
（5）Mounted on workpiece mounting bracket workpiece under the drive of workpiece translational motion device close to inductive head；
（6）Inductive head energization water flowing is heat-treated workpiece to be processed；
（7）Workpiece moves release machining area under the drive of workpiece translational motion device along Y-axis negative direction after the completion of heat treatment；
（8）Inductive head library is moved along X-axis negative direction, and inductive head quick change handle is clamped with claw, and then retaining mechanism II, which unclamps, clamps
Inductive head quick change handle, inductive head library move along Y-axis negative direction and take out inductive head quick change handle；
（9）The rotation of inductive head library makes the inductive head alignment inductive head quick change handle mounting hole that the next step needs；
（10）Repeat step（3）-（9）Heat treatment Flexible Manufacture is carried out to workpiece using different inductive heads；
（11）After the completion of heat treatment, inductive head library moves along X-axis positive direction and exits machining area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710273153.7A CN106967869B (en) | 2017-04-25 | 2017-04-25 | A kind of induction heat treatment flexible machining centre and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710273153.7A CN106967869B (en) | 2017-04-25 | 2017-04-25 | A kind of induction heat treatment flexible machining centre and its processing method |
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| Publication Number | Publication Date |
|---|---|
| CN106967869A CN106967869A (en) | 2017-07-21 |
| CN106967869B true CN106967869B (en) | 2018-10-12 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284878A (en) * | 2011-07-28 | 2011-12-21 | 常州昌隆机床制造有限公司 | Automatic head changing head warehouse mechanism for gantry processing center |
| CN203791861U (en) * | 2014-02-14 | 2014-08-27 | 廊坊市管道人机械设备有限公司 | Flexible medium frequency induction heating device |
| CN104232861A (en) * | 2013-06-06 | 2014-12-24 | 天龙科技炉业(无锡)有限公司 | All-automatic annular flexible quenching machine |
| CN204401051U (en) * | 2015-01-09 | 2015-06-17 | 重庆奥马特机械制造有限公司 | A kind of flexible thermal process tempering product line |
| CN106222673A (en) * | 2016-08-30 | 2016-12-14 | 赫菲斯热处理系统江苏有限公司 | A kind of annular turns end flexibility heat-treatment production line and heat treatment method thereof |
-
2017
- 2017-04-25 CN CN201710273153.7A patent/CN106967869B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284878A (en) * | 2011-07-28 | 2011-12-21 | 常州昌隆机床制造有限公司 | Automatic head changing head warehouse mechanism for gantry processing center |
| CN104232861A (en) * | 2013-06-06 | 2014-12-24 | 天龙科技炉业(无锡)有限公司 | All-automatic annular flexible quenching machine |
| CN203791861U (en) * | 2014-02-14 | 2014-08-27 | 廊坊市管道人机械设备有限公司 | Flexible medium frequency induction heating device |
| CN204401051U (en) * | 2015-01-09 | 2015-06-17 | 重庆奥马特机械制造有限公司 | A kind of flexible thermal process tempering product line |
| CN106222673A (en) * | 2016-08-30 | 2016-12-14 | 赫菲斯热处理系统江苏有限公司 | A kind of annular turns end flexibility heat-treatment production line and heat treatment method thereof |
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| Publication number | Publication date |
|---|---|
| CN106967869A (en) | 2017-07-21 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20191217 Address after: 471000 Luoyang, Henan, China (Henan) free trade trial area, Luoyang Fenghua Road, hi tech Development Zone, No. 10 Patentee after: LUOYANG SHINING INDUCTION HEATING CO., LTD. Address before: High spring city road Jianxi District 471000 in Henan province Luoyang City Hospital No. 2 Building 5 3 Door No. 101 Patentee before: Wang Yu |
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| TR01 | Transfer of patent right |