CN103611787B - A kind of production technology of T iron of ovallized column core - Google Patents
A kind of production technology of T iron of ovallized column core Download PDFInfo
- Publication number
- CN103611787B CN103611787B CN201310580895.6A CN201310580895A CN103611787B CN 103611787 B CN103611787 B CN 103611787B CN 201310580895 A CN201310580895 A CN 201310580895A CN 103611787 B CN103611787 B CN 103611787B
- Authority
- CN
- China
- Prior art keywords
- workpiece
- recess
- mould
- height
- shaping
- 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.)
- Expired - Fee Related
Links
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of production technology of T iron of ovallized column core, utilize band heading mold, shaping mould, flattening mould and mould punching press to make the T iron of ovallized column core, comprise the following steps: step 1: get the raw materials ready; Step 2: operation of taking the lead; Step 3: trimming; Step 4: flattening process; Step 5: molding procedure.The present invention aims to provide one to be had and can facilitate, and fast prepares the production technology of the T iron of ovallized column core.
Description
Technical field
The present invention relates to automatic puncher field, particularly a kind of production technology of T iron of ovallized column core.
Background technology
The cross section of the post core of existing T iron is generally circle, nearest research finds, the T iron of ovallized column core has the advantage of low noise, high-quality in application, the technique of the T iron of existing making ovallized column core is mainly with manually sawing out one block of block disk material, then processed by the full finish turning of Vehicle Processing, the product produced so not only cost is high, and efficiency is low again..
Summary of the invention
The invention provides one to have and can facilitate, fast prepare the production technology of the T iron of ovallized column core.
Technical scheme provided by the invention is: a kind of production technology of T iron of ovallized column core, utilizes band heading mold, shaping mould, flattening mould and mould punching press to make the T iron of ovallized column core, comprises the following steps:
Step 1: get the raw materials ready, is cut into bar by dish circle material;
Step 2: operation of taking the lead, strikes out preliminary working workpiece by described bar by band heading mold; The cross section of the bottom of described preliminary working workpiece is oval;
Step 3: trimming, strikes out shaping workpiece by described preliminary working workpiece by shaping mould; The cross section of the bottom of described shaping workpiece is identical with the cross section of preliminary working workpiece, and the height of the bottom of described shaping workpiece is higher than the height of the bottom of described preliminary working workpiece;
Step 4: flattening process, described shaping workpiece is struck out flattening workpiece by flattening mould, the cross section of the bottom of described flattening workpiece is identical with the cross section of preliminary working workpiece, and the height of the bottom of described flattening workpiece is higher than the height of the bottom of described shaping workpiece; The height on the top of described flattening workpiece is less than the height on the top of described shaping workpiece;
Step 5: molding procedure, strikes out shaping workpiece by described flattening workpiece by mould, and the cross section of the bottom of described shaping workpiece is identical with the cross section of preliminary working workpiece; The height on the top of described shaping workpiece is less than the height on the top of described flattening workpiece.
In the production technology of the T iron of above-mentioned ovallized column core, the band heading mold stated comprises band heading mold patrix and band heading mold counterdie, the lower surface of described band heading mold patrix is provided with the groove of fixing bar, the upper surface of described band heading mold counterdie is provided with first recess that can hold bar, the bottom of the first described recess is connected with oval first recess, is provided with the first thimble in the first described recess; Described step 2 comprises following sub-step:
Sub-step 6: the height regulating the first thimble, carries out punching operation by described bar by band heading mold, preparation preliminary working workpiece;
Sub-step 7: preliminary working workpiece is ejected the first recess by the first described thimble.
In the production technology of the T iron of above-mentioned ovallized column core, the height of the first described thimble is greater than or equal to the height of described band heading mold counterdie.
In the production technology of the T iron of above-mentioned ovallized column core, described shaping mould comprises shaping mould patrix and shaping mould counterdie, the upper surface of described shaping mould counterdie is provided with second recess that can hold preliminary working workpiece, the second described recess bottom is connected with the second recess, the cross section of the second described recess is identical with the cross section of described first recess, be provided with the second thimble in the second described recess, the lower surface of described shaping mould patrix is provided with the second punch adapted with the second recess; Described step 3 comprises following sub-step:
Sub-step 8: the height regulating the second thimble, the rest of the second recess is made to be greater than the height of the ovallized column core of preliminary working workpiece, by shaping mould patrix, punching operation is carried out to the preliminary working workpiece in the second recess of shaping mould counterdie, preparation shaping workpiece;
Sub-step 9: the second recess by the second described thimble, shaping workpiece being ejected shaping mould counterdie.
In the production technology of the T iron of above-mentioned ovallized column core, the height of the second described thimble is greater than or equal to the height of described shaping mould counterdie.
In the production technology of the T iron of above-mentioned ovallized column core, described flattening mould comprises flattening upper mould and flattens lower mould, the upper surface of described flattening lower mould is provided with the 3rd recess, the bottom of described 3rd recess is connected with the 3rd recess, the cross section of the 3rd described recess is identical with the cross section of described first recess, the 3rd thimble is provided with in the 3rd described recess, the lower surface of described flattening upper mould is provided with the 3rd punch adapted with the 3rd recess, and described step 4 comprises following sub-step:
Sub-step 10: the height regulating the 3rd thimble, the rest of the 3rd recess is made to be greater than the height of the ovallized column core of shaping workpiece, carry out punching operation by flattening upper mould to the shaping workpiece flattened in the 3rd recess of lower mould, workpiece is flattened in preparation;
Sub-step 11: flattening workpiece is ejected the 3rd recess by the 3rd described thimble.
In the production technology of the T iron of above-mentioned ovallized column core, the height of the 3rd described thimble is greater than or equal to the height flattening lower mould.
In the production technology of the T iron of above-mentioned ovallized column core, described mould comprises mould patrix and mould counterdie, the upper surface of described mould counterdie is provided with the 4th recess, the cross section of the 4th described recess is identical with the cross section of the first recess, be provided with the 4th thimble in the 4th described recess, the lower surface of described mould patrix is provided with a projection; Described step 5 comprises following sub-step:
Sub-step 7: the height regulating the 4th thimble, makes the rest height of the 4th recess equal the height of the ovallized column core flattening workpiece, carries out punching operation, prepare shaping workpiece by mould patrix to the flattening workpiece on mould counterdie;
Sub-step 8: the 4th recess by the 4th described thimble, shaping workpiece being ejected mould counterdie.
In the production technology of the T iron of above-mentioned ovallized column core, the height of the 4th described thimble is greater than or equal to the height of mould counterdie.
Compared with prior art, the production technology of the T iron of ovallized column core of the present invention is by band heading mold, shaping mould, flattening mould and mould processing work, make workpiece successively that top is ironed, bottom is pressed into the ovallized column progressively deepened, by repeatedly suppressing, Workpiece shaping rate can be made high, and spoilage is low.
Further, be provided with thimble in the bottom of band heading mold, shaping mould, flattening mould and mould, can be convenient workpiece is ejected process equipment, enter next manufacturing procedure smoothly, be convenient to batch machining and production.
Accompanying drawing explanation
Fig. 1 is the process chart of the present embodiment;
Fig. 2 is the schematic diagram of the present embodiment step 2;
Fig. 3 is the schematic diagram of the present embodiment step 3;
Fig. 4 is the schematic diagram of the present embodiment step 4;
Fig. 5 is the schematic diagram of the present embodiment step 5.
Detailed description of the invention
Below in conjunction with detailed description of the invention, technical scheme of the present invention is described in further detail, but does not form any limitation of the invention.
Shown in figure 1-Fig. 5, a kind of production technology of T iron of ovallized column core, utilizes band heading mold 1, shaping mould 2, flattens the T iron of mould 3 and mould 4 punching press making ovallized column core, comprise the following steps:
Step 1: get the raw materials ready, is cut into bar 5 by dish circle material;
Step 2: operation of taking the lead, strikes out preliminary working workpiece by described bar by band heading mold 1; The cross section of the bottom of described preliminary working workpiece is oval;
Step 3: trimming, strikes out shaping workpiece 6 by described preliminary working workpiece by shaping mould 2; The cross section of the bottom of described shaping workpiece 6 is identical with the cross section of preliminary working workpiece, and the height of the bottom of described shaping workpiece 6 is higher than the height of the bottom of described preliminary working workpiece;
Step 4: flattening process, described shaping workpiece 6 is struck out flattening workpiece 7 by flattening mould 3, the cross section of the bottom of described flattening workpiece 7 is identical with the cross section of preliminary working workpiece, and the height of the bottom of described flattening workpiece 7 is higher than the height of the bottom of described shaping workpiece; The height on the top of described flattening workpiece 7 is less than the height on the top of described shaping workpiece 6;
Step 5: molding procedure, strikes out shaping workpiece 8 by described flattening workpiece 7 by mould 4, and the cross section of the bottom of described shaping workpiece 8 is identical with the cross section of preliminary working workpiece; The height on the top of described shaping workpiece 8 is less than the height on the top of described flattening workpiece 7.
In the present embodiment, described band heading mold 1 comprises band heading mold patrix 9 and band heading mold counterdie 10, the lower surface of described band heading mold patrix 9 is provided with the groove 11 of fixing bar, the upper surface of described band heading mold counterdie 10 is provided with first recess 12 that can hold bar, the bottom of the first described recess 12 is connected with oval first recess 13, is provided with the first thimble 14 in the first described recess 13; Described step 2 comprises following sub-step:
Sub-step 6: the height regulating the first thimble 14, carries out punching operation by described bar 5 by band heading mold 1, preparation preliminary working workpiece;
Sub-step 7: preliminary working workpiece is ejected the first recess 13 by the first described thimble 14, the height of the first described thimble 14 is greater than or equal to the height of described band heading mold counterdie 10.
In the present embodiment, described shaping mould 2 comprises shaping mould patrix 15 and shaping mould counterdie 16, the upper surface of described shaping mould counterdie 16 is provided with second recess 17 that can hold preliminary working workpiece, the second described recess 17 bottom is connected with the second recess 18, the cross section of the second described recess 18 is identical with the cross section of described first recess 13, be provided with the second thimble 19 in the second described recess 18, the lower surface of described shaping mould patrix 15 is provided with the second punch 20 adapted with the second recess 17; Described step 3 comprises following sub-step:
Sub-step 8: the height regulating the second thimble 19, the rest of the second recess 18 is made to be greater than the height of the ovallized column core of preliminary working workpiece, punching operation is carried out by the preliminary working workpiece in the second recess 17 of shaping mould patrix 15 pairs of shaping mould counterdies 16, at this, preparation shaping workpiece 6, it should be noted that the rest of the second recess 18 specifically refers to the space surrounded by the second recess 18 and the second thimble 19;
Sub-step 9: the second recess 17 by the second described thimble 19, shaping workpiece 6 being ejected shaping mould counterdie 16, the height of the second described thimble 19 is greater than or equal to the height of described shaping mould counterdie 16.
In the present embodiment, described flattening mould 3 comprises flattening upper mould 21 and flattens lower mould 22, the upper surface of described flattening lower mould 22 is provided with the 3rd recess 23, the bottom of described 3rd recess 23 is connected with the 3rd recess 24, the cross section of the 3rd described recess 24 is identical with the cross section of described first recess 13, the 3rd thimble 25 is provided with in the 3rd described recess 24, the lower surface of described flattening upper mould 21 is provided with the 3rd punch 26 adapted with the 3rd recess 23, and described step 4 comprises following sub-step:
Sub-step 10: the height regulating the 3rd thimble 25, the rest of the 3rd recess 24 is made to be greater than the height of the ovallized column core of shaping workpiece 6, carry out punching operation by flattening upper mould 21 to the shaping workpiece 6 flattened in the 3rd recess 23 of lower mould 22, workpiece 7 is flattened in preparation;
Sub-step 11: flattening workpiece 7 is ejected the 3rd recess 23 by the 3rd described thimble 25, the height of the 3rd described thimble 25 is greater than or equal to the height flattening lower mould 22.
In the present embodiment, described mould 4 comprises mould patrix 27 and mould counterdie 28, the upper surface of described mould counterdie 28 is provided with the 4th recess 29, the cross section of the 4th described recess 29 is identical with the cross section of the first recess 13, be provided with the 4th thimble 30 in the 4th described recess 29, the lower surface of described mould patrix 27 is provided with a projection 31; Described step 5 comprises following sub-step:
Sub-step 7: the height regulating the 4th thimble 30, the rest height of the 4th recess 29 is made to equal the height of the ovallized column core flattening workpiece 7, carry out punching operation by the flattening workpiece 7 on mould patrix 27 pairs of mould counterdies 28, prepare shaping workpiece 8;
Sub-step 8: the 4th recess 29 by the 4th described thimble 30, shaping workpiece 8 being ejected mould counterdie 28, the height of the 4th described thimble 30 is greater than or equal to the height of mould counterdie 28
Above-describedly be only preferred embodiment of the present invention, all do within the scope of the spirit and principles in the present invention any amendment, equivalently to replace and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the production technology of the T iron of an ovallized column core, utilize band heading mold (1), shaping mould (2), flatten the T iron of mould (3) and mould (4) punching press making ovallized column core, it is characterized in that, comprise the following steps:
Step 1: get the raw materials ready, is cut into bar (5) by dish circle material;
Step 2: operation of taking the lead, strikes out preliminary working workpiece by described bar by band heading mold (1); The cross section of the bottom of described preliminary working workpiece is oval;
Step 3: trimming, strikes out shaping workpiece (6) by described preliminary working workpiece by shaping mould (2); The cross section of the bottom of described shaping workpiece (6) is identical with the cross section of preliminary working workpiece, and the height of the bottom of described shaping workpiece (6) is higher than the height of the bottom of described preliminary working workpiece;
Step 4: flattening process, described shaping workpiece (6) is struck out flattening workpiece (7) by flattening mould (3), the cross section of the bottom of described flattening workpiece (7) is identical with the cross section of preliminary working workpiece, and the height of the bottom of described flattening workpiece (8) is higher than the height of the bottom of described shaping workpiece (6); The height on the top of described flattening workpiece (7) is less than the height on the top of described shaping workpiece (6);
Step 5: molding procedure, strikes out shaping workpiece (8) by described flattening workpiece (7) by mould (4), and the cross section of the bottom of described shaping workpiece (8) is identical with the cross section of preliminary working workpiece; The height on the top of described shaping workpiece (8) is less than the height on the top of described flattening workpiece (7).
2. the production technology of the T iron of ovallized column core according to claim 1, it is characterized in that, described band heading mold (1) comprises band heading mold patrix (9) and band heading mold counterdie (10), the lower surface of described band heading mold patrix (9) is provided with the groove (11) of fixing bar, the upper surface of described band heading mold counterdie (10) is provided with first recess (12) that can hold bar, the bottom of described the first recess (12) is connected with oval first recess (13), the first thimble (14) is provided with in described the first recess (13), described step 2 comprises following sub-step:
Sub-step 6: the height regulating the first thimble (14), carries out punching operation by described bar (5) by band heading mold (1), preparation preliminary working workpiece;
Sub-step 7: preliminary working workpiece is ejected the first recess (13) by described the first thimble (14).
3. the production technology of the T iron of ovallized column core according to claim 2, is characterized in that, the height of described the first thimble (14) is greater than or equal to the height of described band heading mold counterdie (10).
4. the production technology of the T iron of ovallized column core according to claim 2, it is characterized in that, described shaping mould (2) comprises shaping mould patrix (15) and shaping mould counterdie (16), the upper surface of described shaping mould counterdie (16) is provided with second recess (17) that can hold preliminary working workpiece, described the second recess (17) bottom is connected with the second recess (18), the cross section of described the second recess (18) is identical with the cross section of described first recess (13), the second thimble (19) is provided with in described the second recess (18), the lower surface of described shaping mould patrix (15) is provided with the second punch (20) adapted with the second recess (17), described step 3 comprises following sub-step:
Sub-step 8: the height regulating the second thimble (19), the rest of the second recess (18) is made to be greater than the height of the ovallized column core of preliminary working workpiece, by shaping mould patrix (15), punching operation is carried out to the preliminary working workpiece in second recess (17) of shaping mould counterdie (16), preparation shaping workpiece (6);
Sub-step 9: the second recess (17) by described the second thimble (19), shaping workpiece (6) being ejected shaping mould counterdie (16).
5. the production technology of the T iron of ovallized column core according to claim 4, is characterized in that, the height of described the second thimble (19) is greater than or equal to the height of described shaping mould counterdie (16).
6. the production technology of the T iron of ovallized column core according to claim 4, it is characterized in that, described flattening mould (3) comprises flattening upper mould (21) and flattens lower mould (22), the upper surface of described flattening lower mould (22) is provided with the 3rd recess (23), the bottom of described 3rd recess (23) is connected with the 3rd recess (24), the cross section of the 3rd described recess (24) is identical with the cross section of described first recess (13), the 3rd thimble (25) is provided with in the 3rd described recess (24), the lower surface of described flattening upper mould (21) is provided with the 3rd punch (26) adapted with the 3rd recess (23), described step 4 comprises following sub-step:
Sub-step 10: the height regulating the 3rd thimble (25), the rest of the 3rd recess (24) is made to be greater than the height of the ovallized column core of shaping workpiece (6), carry out punching operation by flattening upper mould (21) to the shaping workpiece (6) flattened in the 3rd recess (23) of lower mould (22), workpiece (7) is flattened in preparation;
Sub-step 11: workpiece (7) will be flattened by the 3rd described thimble (25) and eject the 3rd recess (23).
7. the production technology of the T iron of ovallized column core according to claim 6, is characterized in that, the height of the 3rd described thimble (25) is greater than or equal to the height flattening lower mould (22).
8. the production technology of the T iron of ovallized column core according to claim 6, it is characterized in that, described mould (4) comprises mould patrix (27) and mould counterdie (28), the upper surface of described mould counterdie (28) is provided with the 4th recess (29), the cross section of the 4th described recess (29) is identical with the cross section of the first recess (13), is provided with the 4th thimble (30) in the 4th described recess (29); The lower surface of described mould patrix (27) is provided with a projection (31), and described step 5 comprises following sub-step:
Sub-step 7: the height regulating the 4th thimble (30), the rest height of the 4th recess (29) is made to equal the height of the ovallized column core flattening workpiece (7), by mould patrix (27), punching operation is carried out to the flattening workpiece (7) on mould counterdie (28), prepare shaping workpiece (8);
Sub-step 8: the 4th recess (29) by the 4th described thimble (29), shaping workpiece (8) being ejected mould counterdie (28).
9. the production technology of the T iron of ovallized column core according to claim 8, is characterized in that, the height of the 4th described thimble (30) is greater than or equal to the height of mould counterdie (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310580895.6A CN103611787B (en) | 2013-11-19 | 2013-11-19 | A kind of production technology of T iron of ovallized column core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310580895.6A CN103611787B (en) | 2013-11-19 | 2013-11-19 | A kind of production technology of T iron of ovallized column core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103611787A CN103611787A (en) | 2014-03-05 |
| CN103611787B true CN103611787B (en) | 2015-10-28 |
Family
ID=50162521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310580895.6A Expired - Fee Related CN103611787B (en) | 2013-11-19 | 2013-11-19 | A kind of production technology of T iron of ovallized column core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103611787B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128744A (en) * | 2014-06-26 | 2014-11-05 | 梧州恒声电子科技有限公司 | Reducing process for producing T iron by cold forging |
| CN111390084A (en) * | 2020-04-08 | 2020-07-10 | 杭州萧山钱江电声器材有限公司 | T iron preparation device and preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202037256U (en) * | 2011-04-20 | 2011-11-16 | 宁波向阳坦科斯特电子有限公司 | U-shaped iron stretching die |
| CN202097223U (en) * | 2011-04-25 | 2012-01-04 | 宁波向阳坦科斯特电子有限公司 | Die for manufacturing T-shaped iron |
| CN202103831U (en) * | 2011-04-25 | 2012-01-04 | 宁波向阳坦科斯特电子有限公司 | T-shaped iron die |
| CN202438656U (en) * | 2012-02-27 | 2012-09-19 | 宁波向阳坦科斯特电子有限公司 | Cold forging die for T-shaped iron with shrinkage pool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7389665B1 (en) * | 2006-11-30 | 2008-06-24 | Ford Motor Company | Sheet metal forming process |
-
2013
- 2013-11-19 CN CN201310580895.6A patent/CN103611787B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202037256U (en) * | 2011-04-20 | 2011-11-16 | 宁波向阳坦科斯特电子有限公司 | U-shaped iron stretching die |
| CN202097223U (en) * | 2011-04-25 | 2012-01-04 | 宁波向阳坦科斯特电子有限公司 | Die for manufacturing T-shaped iron |
| CN202103831U (en) * | 2011-04-25 | 2012-01-04 | 宁波向阳坦科斯特电子有限公司 | T-shaped iron die |
| CN202438656U (en) * | 2012-02-27 | 2012-09-19 | 宁波向阳坦科斯特电子有限公司 | Cold forging die for T-shaped iron with shrinkage pool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103611787A (en) | 2014-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204093928U (en) | One-time formed circle_curling die tool | |
| CN204194600U (en) | A kind of flanging forming mould of automobile insert | |
| CN103611787B (en) | A kind of production technology of T iron of ovallized column core | |
| CN103624203B (en) | The working method of a kind of high line diameter ratio T iron and processing mold | |
| CN105363925A (en) | Blanking and bending die high in machining efficiency | |
| CN202779419U (en) | Compound die with shaping and trimming concave die positioned above | |
| CN204294765U (en) | One-sided bending workpieces Integral molding device for insoles | |
| CN205110517U (en) | No waste material terminal stamping die | |
| CN205147069U (en) | Tie -beam deburring duplex position mould | |
| CN205056800U (en) | Car body hinge bracket upgrades continuous mould | |
| CN208542822U (en) | A kind of sliding support stamping die on pedal assembly | |
| CN203610487U (en) | Stamping system for preparing T-shaped iron with oval column core | |
| CN202667419U (en) | Reforming and trimming die of flange drawing part | |
| CN207057417U (en) | A kind of positioning flange molding structure in repair-punch moulds | |
| CN206509419U (en) | A kind of aluminum alloy battery lid continuous stamping die | |
| CN106111781A (en) | Channel tie manufactures one-time-shaped mould | |
| CN205702075U (en) | A kind of housing secondary deep-drawing mould | |
| CN205096346U (en) | Circular stamping die | |
| CN205096384U (en) | Longitudinal wall support shaping stamping die under motorcycle right side | |
| CN103611786B (en) | Prepare the stamping system of ovallized column core T iron | |
| CN104070112A (en) | Synchronous edge cutting and overturning die of outer covering part of automobile | |
| CN203610509U (en) | Heading die for T-shaped iron with oval column core | |
| CN203917630U (en) | The fine blanking die of a kind of boss nutplate moulding | |
| CN202910156U (en) | Blanking and drawing composite shaping device for box-shaped pieces of automobile inner covering parts | |
| CN202571026U (en) | Stamping die of automobile chassis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170613 Address after: 226500 Rugao province Jiangsu City Jiuhua town Huaxing Road No. 38 Patentee after: Jiangsu Tong Wang Machinery Manufacturing Co., Ltd. Address before: Wuzhou Hongling Changzhou District Road 543002 No. 108 the Guangxi Zhuang Autonomous Region Patentee before: Wuzhou Hengsheng Electronic Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20181119 |