CN103357731A - Internal-thread copper pipe forming and spinning device - Google Patents
Internal-thread copper pipe forming and spinning device Download PDFInfo
- Publication number
- CN103357731A CN103357731A CN2012100812043A CN201210081204A CN103357731A CN 103357731 A CN103357731 A CN 103357731A CN 2012100812043 A CN2012100812043 A CN 2012100812043A CN 201210081204 A CN201210081204 A CN 201210081204A CN 103357731 A CN103357731 A CN 103357731A
- Authority
- CN
- China
- Prior art keywords
- spinning
- sleeve
- pad
- revolving sleeve
- internal thread
- 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.)
- Granted
Links
- 238000009987 spinning Methods 0.000 title claims abstract description 70
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 40
- 239000010949 copper Substances 0.000 title claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 239000003921 oil Substances 0.000 abstract description 11
- 239000010687 lubricating oil Substances 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000003137 locomotive effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Abstract
The invention relates to an internal-thread copper pipe forming and spinning device which comprises a connecting sleeve, a rotary sleeve, a spinning ring set, a steel ball set and four mutually-independent gaskets used for adjusting the gap of the spinning ring set. The spinning ring set and the steel ball set are arranged in a spinning cavity of the rotary sleeve, and the gaskets are clamped at the joint of the connecting sleeve and the rotary sleeve. In this way, when the gap between two spinning rings of the spinning ring set is adjusted, a user only needs to unscrew bolts and mounts copper sheets in needed thickness, demounting of the rotary sleeve is not needed, assembling accuracy is high and easy to guarantee, and product quality is stable and guaranteed; the connecting sleeve and the rotary sleeve are fixed through four bolts, so that symmetry is better, assembling accuracy is guaranteed better, and product quality is more stable; the rotary sleeve is provided with four square oil outgoing holes, so that liquidity of lubricating oil is improved, motion resistance of a high-speed motor and changes of oil viscosity due to mechanical motion are reduced, impurity residues of the lubricating oil are reduced, and abrasion of the spinning ring set and the steel ball set is reduced.
Description
[technical field]
The invention belongs to the copper pipe internal thread forming technical field, relate in particular to a kind of forming of internal thread copper pipes spinning apparatus.
[background technology]
At present, inner screw thread copper pipe is a kind of efficient heat conducting tube, and its heat exchange efficiency is far above smooth wall pipe, but the moulding process more complicated of internal thread, generally comprise floating core head draw dial, rotary press modelling internal thread and sizing sky draw; Wherein, when carrying out the rotary press modelling internal thread, copper pipe uniform motion forward under the pulling force effect, the spin roll extrusion copper pipe outer surface of while High Rotation Speed, copper pipe inside is connected to the screw thread core print automatic rotating on the floating core head, make copper pipe be in approximate at a high speed oblique transverse rolling state, the teeth groove on the screw thread core print makes the copper pipe inwall become profile of tooth, forms inner screw thread copper pipe.
But present copper pipe internal thread forming spinning machine all is to be undertaken spinning amount size is adjusted, controlled by the annular gasket that replacing is arranged on the different-thickness between adapter sleeve and the revolving sleeve, adopts this structure to have following problem:
When 1, adjusting grammes per square metre, at first spinning head (being whole revolving sleeve) must be unloaded, load onto the pad of desired thickness, and tighten spinning head; Then the debugging grammes per square metre of driving if improperly also must again spinning head be unloaded the pad that is loaded on another thickness, and tightens spinning head, and the debugging grammes per square metre of again driving, so frequently repeatedly, until adjust accurately; Technique is very loaded down with trivial details, loses time, efficient is low, and shunts each time and all can produce the waste material of shunting, general accent once can produce 10 kilograms, need to just grammes per square metre can be mixed up for two to three times, namely transfer a grammes per square metre to want 10～30 kilograms of waste materials of shunting, have a strong impact on output and yield rate.
2, at present the spacer thickness used of workshop is that 0.03 millimeter at every interval arranges a specification, from 4.70 millimeters until 5.50 millimeters, and 28 ranks altogether, the thickness difference between each pad is 0.03 millimeter, and pad quantity is many, and cost is high; Even so, this pad can not satisfy the demand of production scene, and modal is that to add " 0.03 millimeter " grammes per square metre large, and it is little to subtract " 0.03 millimeter " grammes per square metre, namely need: just do not have suitable pad when " 0.02 millimeter with 0.01 millimeter ", can't realize continuous adjusting of " Mick is heavy " size.
?
When 3, after pad is changed in the production scene, it being locked, the control of locking force is a very crucial problem, when locking force excessive (tension of namely locking), grammes per square metre then reduces relatively, on the contrary, and when locking force too small (pine of namely locking), grammes per square metre then increases relatively, assembly precision is low, can't Measurement accuracy, greatly reduce yield rate; And a great problem especially for new operator needs constantly exercise and experience accumulation just can grasp locking force, has directly affected output and the quality of product, reaches the raising that affects the finished product rate.
In addition, the lubricating system of existing copper pipe internal thread forming spinning machine is the oil-feed of advancing, and throw away by aperture on the revolving sleeve (being generally the hole of 9 ∮ 4mm), but lubricants capacity is larger, throw away large gauging and can bring very large resistance to motor, affect electrical machinery life; And the dynamically balanced major effect point of motor is the weight that front end is subsidiary, the dynamic balancing effect is bad, at steel ball copper pipe is carried out spinning and often be accompanied by and beat, it is different to produce the copper pipe high difference of same axial chi and surface indentation width, and impact is produced by flute profile and copper pipe outer surface quality.
[summary of the invention]
In order to solve the above-mentioned technical problem that exists in the prior art, the invention provides a kind of forming of internal thread copper pipes spinning apparatus.
The present invention solves the technical scheme that the prior art problem adopts:
A kind of forming of internal thread copper pipes spinning apparatus, include adapter sleeve, revolving sleeve, spinning ring group and steel ball group, and described spinning ring group and steel ball are mounted in the spinning chamber that described revolving sleeve is provided with, this spinning apparatus also includes more than at least two and the separate pad that is used for adjusting described spinning ring group gap, and described pad is fastened on the joint between described adapter sleeve and the revolving sleeve.
As the preferred technical scheme of the present invention, be respectively equipped with corresponding bolt hole and another bolt hole on described adapter sleeve and the revolving sleeve, and fix with the bolt-locking that passes described bolt hole and another bolt hole, described pad is provided with hole clipping, described hole clipping is stuck on the bolt, and described pad namely is fixed between described adapter sleeve and the revolving sleeve.
As the preferred technical scheme of the present invention, described pad is a copper sheet, is fan-shaped.
As the preferred technical scheme of the present invention, the number of described bolt hole, another bolt hole and pad is four, and corresponding one by one, and described bolt includes four, and passes respectively four described bolts hole, another bolt hole and pad.
As the preferred technical scheme of the present invention, described revolving sleeve also is provided with two above oil outlets, and array arrangement is connected with the spinning chamber of establishing in the revolving sleeve on sidewall around the described revolving sleeve.
As the preferred technical scheme of the present invention, described oil outlet includes four, and is square opening.
As the preferred technical scheme of the present invention, the size of each described oil outlet is 30mm * 20mm, and the length that the adapter sleeve of described spinning apparatus puts in the revolving sleeve 2 is 8mm.
Beneficial effect of the present invention:
The present invention passes through technique scheme, when needs are adjusted the gap of two spinning rings of spinning ring group, need only the copper sheet that loosers a bolt one by one and replace with desired thickness, whole process need not revolving sleeve is unloaded, high and the easier assurance of assembly precision, simultaneously product quality is more stable, guaranteed, even also complete operation easily of new operator, assembly precision and product quality are guaranteed; And by four bolt fixed operating sleeves and revolving sleeve, symmetry is better, and high assembly precision is more guaranteed, and product quality is more stable, guaranteed; Add, four square oil outlets of array arrangement on the sidewall around the revolving sleeve, greatly improve the circulation of lubricating oil, more smooth and easy, reduced lubricating oil to the resistance of high-speed electric expreess locomotive motion and mechanical movement to the change of oily viscosity and reduce impurity of lubricant residual (copper powder in the production process), reduce the wearing and tearing of spinning ring group and steel ball group.
In addition, this spinning apparatus has saved the annular gasket that is provided with according to process requirements, use instead for separate copper sheet as pad, the length that adapter sleeve is put in the revolving sleeve is adjusted into 8mm from 13mm, also save simultaneously the quantity of processing mold, the Mould Machining cost will reduce, and the quantity of mould will reduce; And save original annular gasket, dwindled the diameter of adapter sleeve and increase by four 30mm * 20mm oil outlet 23, greatly reducing the counterweight of original high-speed electric expreess locomotive, the dynamic balance performance of motor is better, and product quality is more stable.
[description of drawings]
Fig. 1 is the structural representation of the described a kind of forming of internal thread copper pipes spinning apparatus of the embodiment of the invention;
Fig. 2 is the package assembly schematic diagram of the described a kind of forming of internal thread copper pipes spinning apparatus of the embodiment of the invention.
The Figure of description description of symbols:
1, adapter sleeve, 11, bolt hole, 2, revolving sleeve, 21, the spinning chamber, 22, another bolt hole, 23, oil outlet, 3, spinning ring group, the 31, first spinning ring, the 32, second spinning ring, 4, the steel ball group, 5, bolt, 6, pad (copper sheet), 61, hole clipping.
[specific embodiment]
Below in conjunction with accompanying drawing technical solution of the present invention is elaborated.
As shown in Fig. 1 and Fig. 2:
The invention provides a kind of forming of internal thread copper pipes spinning apparatus, include adapter sleeve 1, revolving sleeve 2, spinning ring group 3 and steel ball group 4, and described spinning ring group 3 and steel ball group 4 are located in the spinning chamber 21 that revolving sleeve 2 is provided with, wherein said spinning ring group 3 includes the first spinning ring 31 and the second spinning ring 32, steel ball group 4 is comprised of a plurality of steel balls, and be located between the first spinning ring 31 and the second spinning ring 32, and be evenly distributed in the spinning ring group 3.The diameter of described adapter sleeve 1 is 70mm, and is bonded with each other with revolving sleeve 2, and adapter sleeve 1 one ends put in the spinning chamber 21 of revolving sleeve 2, is connected with the spinning ring group 3 of establishing in the revolving sleeve 2; Adapter sleeve 1 is provided with plural at least bolt hole 11, revolving sleeve 2 correspondence positions are provided with another bolt hole 22, bolt 5 more than at least two passes respectively every pair of bolt hole 11 and another bolt hole 22, and locking, namely interconnects between adapter sleeve 1 and the revolving sleeve 2, fixes; And, between the adapter sleeve 1 at every pair of bolt hole 11 and another bolt hole 22 places and revolving sleeve 2, also being provided with independently pad 6, pad 6 is copper sheets, be fan-shaped, copper sheet 6 is provided with hole clipping 61, and hole clipping 61 is stuck on the bolt 5, and pad 6 namely is fixed between adapter sleeve 1 and the revolving sleeve 2.Like this, when needs are adjusted gap between the two spinning rings (31 and 32) of spinning ring group 3, as long as looser a bolt one by one 3 and replace with the copper sheet 6 of desired thickness, whole process need not revolving sleeve 2 is unloaded, high and the easier assurance of assembly precision, simultaneously product quality is more stable, guaranteed, even also complete operation easily of new operator, assembly precision and product quality are guaranteed; Add, this spinning apparatus has saved the annular gasket that is provided with according to process requirements, use instead for separate copper sheet 6 as pad, the length that adapter sleeve 1 is put in the revolving sleeve 2 is adjusted into 8mm from 13mm, also save simultaneously the quantity of processing mold, the Mould Machining cost will reduce, and the quantity of mould will reduce.
Wherein, the number of described bolt hole (11,22) and copper sheet 6 is preferably four, and correspondingly described bolt 5 is preferably four, and adapter sleeve 1 is better with the symmetry of revolving sleeve 2 like this, and high assembly precision is more guaranteed, and product quality is more stable, guaranteed.
Revolving sleeve 2 of the present invention also is provided with four oil outlets 23, and each oil outlet 23 is square opening, and its size is 30mm * 20mm, and array arrangement is connected with the spinning chamber 21 of establishing in the revolving sleeve 2 on sidewall around the revolving sleeve 2; Like this, can greatly improve the circulation of lubricating oil, more smooth and easy, reduced lubricating oil to the resistance of high-speed electric expreess locomotive motion and mechanical movement to the change of oily viscosity and reduce impurity of lubricant residual (copper powder in the production process), reduce the wearing and tearing of spinning ring group and steel ball group.
And, spinning apparatus of the present invention is by saving original annular gasket, dwindle the diameter of adapter sleeve 1 and increasing by four 30mm * 20mm oil outlet 23, greatly reduce the counterweight (1100g drops to 790g) of original high-speed electric expreess locomotive, the dynamic balance performance of motor is better, and product quality is more stable.
Above content is the further description of the present invention being done in conjunction with concrete optimal technical scheme, can not assert that implementation of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (7)
1. forming of internal thread copper pipes spinning apparatus, include adapter sleeve (1), revolving sleeve (2), spinning ring group (3) and steel ball group (4), and described spinning ring group (3) and steel ball group (4) are located in the spinning chamber (21) that described revolving sleeve (2) is provided with, it is characterized in that: this spinning apparatus also includes more than at least two and the separate pad (6) that is used for adjusting described spinning ring group (3) gap, and described pad (6) is fastened on the joint between described adapter sleeve (1) and the revolving sleeve (2).
2. forming of internal thread copper pipes spinning apparatus according to claim 1, it is characterized in that: be respectively equipped with corresponding bolt hole (11) and another bolt hole (22) on described adapter sleeve (1) and the revolving sleeve (2), and be locked with the bolt (5) that passes described bolt hole (11) and another bolt hole (22), described pad (6) is provided with hole clipping (61), described hole clipping (61) is stuck on the bolt (5), and described pad (6) namely is fixed between described adapter sleeve (1) and the revolving sleeve (2).
3. forming of internal thread copper pipes spinning apparatus according to claim 2, it is characterized in that: described pad (6) is a copper sheet, is fan-shaped.
4. forming of internal thread copper pipes spinning apparatus according to claim 2, it is characterized in that: the number of described bolt hole (11), another bolt hole (22) and pad (6) is four, and corresponding one by one, described bolt (5) includes four, and passes respectively four described bolts hole (11), another bolt hole (22) and pad (6).
5. any one described forming of internal thread copper pipes spinning apparatus in 5 according to claim 1, it is characterized in that: described revolving sleeve (2) also is provided with two above oil outlets (23), and array arrangement is connected with the spinning chamber (21) of establishing in the revolving sleeve (2) on sidewall around the described revolving sleeve (2).
6. forming of internal thread copper pipes spinning apparatus according to claim 5, it is characterized in that: described oil outlet (23) includes four, and is square opening.
7. forming of internal thread copper pipes spinning apparatus according to claim 7, it is characterized in that: the size of each described oil outlet (23) is 30mm * 20mm, and the length that the adapter sleeve of described spinning apparatus (1) puts in the revolving sleeve 2 are 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210081204.3A CN103357731B (en) | 2012-03-26 | 2012-03-26 | Internal-thread copper pipe forming and spinning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210081204.3A CN103357731B (en) | 2012-03-26 | 2012-03-26 | Internal-thread copper pipe forming and spinning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103357731A true CN103357731A (en) | 2013-10-23 |
| CN103357731B CN103357731B (en) | 2015-07-08 |
Family
ID=49360471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210081204.3A Active CN103357731B (en) | 2012-03-26 | 2012-03-26 | Internal-thread copper pipe forming and spinning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103357731B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580699A (en) * | 2018-07-11 | 2018-09-28 | 广东海亮铜业有限公司 | A kind of mold and processing unit (plant) of processing pipe internal thread |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2922692A1 (en) * | 1978-07-06 | 1980-01-17 | Robur Werke Zittau Veb | METHOD FOR PRODUCING ROTATIONALLY SYMMETRICAL METAL HOLLOW BODIES BY FLOW PRESSURE |
| JP2001034712A (en) * | 1999-07-21 | 2001-02-09 | Toppan Printing Co Ltd | Ic card issuing device |
| CN2907952Y (en) * | 2006-06-15 | 2007-06-06 | 广东华鸿铜业有限公司 | Processing shaping mould of internal thread copper tube |
| CN201333468Y (en) * | 2008-12-29 | 2009-10-28 | 山东奥博特铜铝业有限公司 | Device for adjusting grammage of internal thread copper pipe on line |
| CN202169307U (en) * | 2011-08-16 | 2012-03-21 | 江苏兴荣美乐铜业有限公司 | Synchronous type planet steel-ball rotary pressing device capable of increasing the extensibility of an internal thread copper pipe |
| CN202655416U (en) * | 2012-03-26 | 2013-01-09 | 广东龙丰精密铜管有限公司 | Internal thread copper pipe molding spinning device |
-
2012
- 2012-03-26 CN CN201210081204.3A patent/CN103357731B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2922692A1 (en) * | 1978-07-06 | 1980-01-17 | Robur Werke Zittau Veb | METHOD FOR PRODUCING ROTATIONALLY SYMMETRICAL METAL HOLLOW BODIES BY FLOW PRESSURE |
| JP2001034712A (en) * | 1999-07-21 | 2001-02-09 | Toppan Printing Co Ltd | Ic card issuing device |
| CN2907952Y (en) * | 2006-06-15 | 2007-06-06 | 广东华鸿铜业有限公司 | Processing shaping mould of internal thread copper tube |
| CN201333468Y (en) * | 2008-12-29 | 2009-10-28 | 山东奥博特铜铝业有限公司 | Device for adjusting grammage of internal thread copper pipe on line |
| CN202169307U (en) * | 2011-08-16 | 2012-03-21 | 江苏兴荣美乐铜业有限公司 | Synchronous type planet steel-ball rotary pressing device capable of increasing the extensibility of an internal thread copper pipe |
| CN202655416U (en) * | 2012-03-26 | 2013-01-09 | 广东龙丰精密铜管有限公司 | Internal thread copper pipe molding spinning device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580699A (en) * | 2018-07-11 | 2018-09-28 | 广东海亮铜业有限公司 | A kind of mold and processing unit (plant) of processing pipe internal thread |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103357731B (en) | 2015-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201275579Y (en) | Double-ended necking and concentricity processing equipment | |
| CN107790804B (en) | Lithium battery electrode slice slitting device and assembly process thereof | |
| CN202655416U (en) | Internal thread copper pipe molding spinning device | |
| CN103357731B (en) | Internal-thread copper pipe forming and spinning device | |
| CN201361634Y (en) | Three-dimensional magnetic suspension tension-free tandem mill | |
| CN1272119C (en) | Rolling mill for wire rod material and tandem mill set | |
| CN109382435A (en) | A kind of internal rolling equipment | |
| CN109877606A (en) | A kind of intermediate supports tooling and coaxial method of adjustment for boring for shafting | |
| CN208628820U (en) | Three axis servo displacement tightening tools | |
| CN206940007U (en) | A kind of air-expanding shaft clamping structure for winder | |
| CN109210091B (en) | A kind of disassembly and assembly structure of large-scale heavy duty main shaft | |
| CN109794535B (en) | Internal spinning forming method | |
| CN102601695B (en) | Dynamic simulation grinding fixture for controllable crowned roller | |
| CN202556173U (en) | Grinding frock for dynamic simulating of controllable crowned roll | |
| CN207387333U (en) | A kind of high speed roll surface roughness sanding apparatus | |
| CN203498548U (en) | Feeding roller structure for rotor spinning machine | |
| CN202367184U (en) | Center rest adjustable centrifugal pipe making machine | |
| CN206679902U (en) | A kind of low-power consumption magnetic material hammers device into shape with automatic blanking equipment pneumatic motor | |
| CN109909408B (en) | Rolling device for double-channel variable-pitch bearing ring | |
| CN112975425B (en) | Peeling and grinding device for aluminum alloy cast rod | |
| CN201869050U (en) | Variable-speed waste conveyor | |
| CN212664515U (en) | Device for preventing adjusting gear of high-speed wire finishing mill from falling off | |
| CN101984542B (en) | Variable-speed waste conveyor | |
| CN202571115U (en) | Tool for processing fastener thread | |
| CN103394574B (en) | A kind of riffled tube formed spinning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Fengtai Inventor after: Fang Shucheng Inventor after: Guo Wenzheng Inventor before: Zheng Fengtai Inventor before: Fang Shucheng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHENG FENGTAI FANG SHUCHENG TO: ZHENG FENGTAI FANG SHUCHENG GUO WENZHENG |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Internal-thread copper pipe forming and spinning device Effective date of registration: 20171215 Granted publication date: 20150708 Pledgee: Zhengzhou Branch of China Minsheng Bank Co.,Ltd. Pledgor: WUXI GOLDEN DRAGON KAWAMURA PRECISION TUBE Co.,Ltd.|CHONGQING LONGYU PRECISE COPPER TUBE Co.,Ltd.|HENAN LONGHUI COPPER INDUSTRY Co.,Ltd.|Xinxiang Jinxiang Precision Pipe Fittings Co.,Ltd.|XINXIANG LONGTENG REFRIGERATION HIGH-TECH CO.,LTD.|JIANGSU CANGHUAN COPPER PRODUCTS CO.,LTD.|GOLDEN DRAGON PRECISE COPPER TUBE Group Inc.|GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. Registration number: 2017990001045 |
|
| CP02 | Change in the address of a patent holder |
Address after: 519090 No. 236 Shangdu Street, Hongqi Town, Jinwan District, Zhuhai City, Guangdong Province Patentee after: GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. Address before: 519000 East Shuanglin Road, Zhuhai Avenue, Jinwan District, Zhuhai City, Guangdong Province Patentee before: GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. |
|
| CP02 | Change in the address of a patent holder | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190814 Granted publication date: 20150708 Pledgee: Zhengzhou Branch of China Minsheng Bank Co.,Ltd. Pledgor: GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. Registration number: 2017990001045 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Internal-thread copper pipe forming and spinning device Effective date of registration: 20190904 Granted publication date: 20150708 Pledgee: Zhengzhou Branch of China Minsheng Bank Co.,Ltd. Pledgor: GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. Registration number: Y2019990000126 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220801 Granted publication date: 20150708 Pledgee: Zhengzhou Branch of China Minsheng Bank Co.,Ltd. Pledgor: GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. Registration number: Y2019990000126 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |