CN203092360U - Circular tube inner wall automatic sand blasting and painting production line - Google Patents
Circular tube inner wall automatic sand blasting and painting production line Download PDFInfo
- Publication number
- CN203092360U CN203092360U CN201320078571.8U CN201320078571U CN203092360U CN 203092360 U CN203092360 U CN 203092360U CN 201320078571 U CN201320078571 U CN 201320078571U CN 203092360 U CN203092360 U CN 203092360U
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- China
- Prior art keywords
- sandblast
- workbench
- sprays paint
- painting
- sand blasting
- 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
- 238000005488 sandblasting Methods 0.000 title claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- 238000010437 sandpainting Methods 0.000 title abstract 6
- 238000010422 painting Methods 0.000 claims abstract description 20
- 239000007921 spray Substances 0.000 claims description 121
- 239000003973 paint Substances 0.000 claims description 113
- 238000005507 spraying Methods 0.000 claims description 34
- 239000000428 dust Substances 0.000 claims description 20
- 238000007592 spray painting technique Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 241000196324 Embryophyta Species 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 7
- 239000004576 sand Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000005422 blasting Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- -1 shot Substances 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Spray Control Apparatus (AREA)
Abstract
The utility model discloses a circular tube inner wall automatic sand blasting and painting production line, belonging to the technical field of cylindrical metal tube surface processing equipment and being used for continuous sand blasting and painting on the cylindrical metal tube inner wall. The adopted technical scheme is as follows: the production line comprises a loading frame, a sand blasting station, an overturning rack, a painting station and an unloading frame which are parallelly and sequentially arrayed; a sand blasting device and a painting device are arranged on the front ends of the sand blasting station and the painting station respectively; a sand blasting and dedusting device and a painting and dedusting device are respectively arranged at the rear ends of the sand blasting station and the painting station; the sand blasting station, the overturning rack and the painting station are respectively provided with a sensor; and the sensors are connected with the controllers of the sand blasting device and the painting device. The circular tube inner wall automatic sand blasting and painting production line disclosed by the utility model is simple in structure, reliable in performance, and high in degree of automation, can realize continuous and automatic sand blasting and painting production line operation, greatly improves the sand blasting and painting quality of the circular tube inner wall, improves the production efficiency, saves the cost and has enormous economic benefit.
Description
Technical field
The utility model relates to a kind of production line that round tube inner wall is carried out sandblast, sprays paint, and belongs to metal circular tube surface processing equipment technical field.
Background technology
In pipeline construction, the metallic conduit surface treatment is one of very important operation.Wherein, to the rust cleaning mode on metallic conduit surface gradually by traditional brush cleaning, motor wire brush rust cleaning changing into derusting by sandblasting.Blasting treatment is the optimal a kind of method of present application surface preparation, this method is utilized compressed air, be sprayed on the sand of certain particle size on the surface of part corrosion by spray gun, the speed that not only eliminates rust is fast, also can be technologies such as application, spraying, plating and carry out the surface preparation, through the cleaning surfaces of blasting treatment, certain roughness is arranged, can improve the adhesion of cover layer and part.Blasting craft is widely used in the rust cleaning alligatoring of sheet metal and hardware outer surface, but still exists a lot of weak points in the rust cleaning alligatoring of pipeline in the open air, and sandblast, the technology of spraying paint of especially ovaler inside pipe wall have much room for improvement.
At present, the instructions for use of drill steel, oil and gas pipes is more and more stricter, and the inner-walls of duct corrosion-resistant requires more and more, and especially the tubule inwall technology of spraying paint is also very weak, and it is very necessary developing new inner-walls of duct sandblast, paint spraying apparatus.
The utility model content
Technical problem to be solved in the utility model provides the automatic sandblast of a kind of round tube inner wall, painting line, this production line can eliminate rust to round tube inner wall, dispose impurity, the variegated and oxide layer on surface, make the dielectric surface alligatoring, reduce the residual stress of substrate surface, improve substrate surface hardness; Can spray paint to round tube inner wall simultaneously, reach the requirement for anticorrosion of round tube inner wall, prolong the service life of pipe.
The technical scheme that solves the problems of the technologies described above is:
The automatic sandblast of a kind of round tube inner wall, painting line, it is by stock shelf, the sandblast workbench, the upset bin, workbench sprays paint, blanking rack, sand blasting unit, spray-painting plant, the sandblast dust arrester, the dust arrester that sprays paint is formed, stock shelf, the sandblast workbench, the upset bin, workbench sprays paint, the parallel order of blanking rack is arranged, sand blasting unit and spray-painting plant are installed in the sandblast workbench respectively and the front end of the workbench that sprays paint, the sandblast dust arrester and the dust arrester that sprays paint are installed in the sandblast workbench respectively and the rear end of the workbench that sprays paint, at the sandblast workbench, the upset bin, spray paint and be separately installed with inductor, inductor and sand blasting unit on the workbench, the control device of spray-painting plant is connected.
The automatic sandblast of above-mentioned round tube inner wall, painting line, described sand blasting unit comprises sandblast conveying mechanism, Sand-blasting spraying gun, sandblast nozzle, sandblast pipeline, compressed air line, the sandblast nozzle is installed in the front end of Sand-blasting spraying gun, the rear end of Sand-blasting spraying gun is connected with sandblast pipeline, compressed air line, the sandblast structure for conveying is connected with Sand-blasting spraying gun, the dead in line of the mobile axis of Sand-blasting spraying gun and sandblast workbench, the front end of Sand-blasting spraying gun is relative with the pipe center on the sandblast workbench.
The automatic sandblast of above-mentioned round tube inner wall, painting line, described spray-painting plant comprises the conveying mechanism that sprays paint, the spray gun that sprays paint, the nozzle that sprays paint, the pipeline that sprays paint, compressed air line, the nozzle that sprays paint is installed in the front end of the spray gun that sprays paint, the spray paint rear end of spray gun is connected with the pipeline that sprays paint, compressed air line, the structure for conveying that sprays paint is connected with the spray gun that sprays paint, spray paint spray gun mobile axis with spray paint the dead in line of workbench, the front end of the spray gun that sprays paint is relative with the pipe center on the workbench that sprays paint.
The automatic sandblast of above-mentioned round tube inner wall, painting line, the below of described sandblast workbench, the workbench that sprays paint is equipped with feed mechanism, feed mechanism has a plurality of, arrange along the axially parallel of sandblast workbench, the workbench that sprays paint respectively, feed mechanism is made up of driving lever and hydraulic cylinder, the upper end of driving lever is positioned at the sandblast workbench, the below of the workbench that sprays paint, and the lower end of driving lever is connected with the hydraulic cylinder push rod.
The beneficial effects of the utility model are:
Sand blasting unit of the present utility model and spray-painting plant are installed in the sandblast workbench respectively and workbench one end that sprays paint, can under the control of inductor, carry out sandblast and spray painting operation to pipe automatically, pipe is mobile in proper order by stock shelf, sandblast workbench, the bin that overturns, the workbench that sprays paint, blanking rack, realize working continuously of streamline, dust arrester can reduce environmental pollution with the waste collection after having sprayed.The utility model can carry out automatic sandblast and sprays paint according to the output of product and technological requirement, has improved the sandblast of round tube inner wall, the quality of spraying paint greatly, has improved production efficiency, has saved cost, has remarkable economic efficiency.The utility model is simple in structure, dependable performance, automaticity height, purposes are various, has vast market prospect.
Description of drawings
Fig. 1 is a structure vertical view of the present utility model;
Fig. 2 is the B-B cutaway view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 1.
Mark is as follows among the figure: stock shelf 1, sandblast workbench 2, upset bin 3, the workbench 4 that sprays paint, blanking rack 5, sand blasting unit 6, spray-painting plant 7, sandblast dust arrester 8, the dust arrester 9 that sprays paint, sandblast conveying mechanism 10, Sand-blasting spraying gun 11, sandblast nozzle 12, the conveying mechanism 13 that sprays paint, the spray gun 14 that sprays paint, the nozzle 15 that sprays paint, driving lever 16, hydraulic cylinder 17, material blocking rod 18.
The specific embodiment
The utility model is made up of stock shelf 1, sandblast workbench 2, upset bin 3, the workbench 4 that sprays paint, blanking rack 5, sand blasting unit 6, spray-painting plant 7, sandblast dust arrester 8, the dust arrester 9 that sprays paint.
Show among the figure that stock shelf 1, sandblast workbench 2, upset bin 3, the workbench 4 that sprays paint, blanking rack 5 parallel orders are arranged.The plane tilts on stock shelf 1, upset bin 3, the blanking rack 5, and stock shelf 1 has material blocking rod 18 with sandblast workbench 2 junctions.The upper surface of sandblast workbench 2, the workbench 4 that sprays paint is a V-type, is convenient to place the pipe workpiece, and the below of sandblast workbench 2, the workbench 4 that sprays paint is equipped with feed mechanism.
Show among the figure that sand blasting unit 6 is installed in the front end of sandblast workbench 2, sandblast dust arrester 8 is installed in the rear end of sandblast workbench 2, forms the sandblast production line.Sand material mouth and compressed air mouth are arranged on the sandblast production line, with compressed air is power, abrasive material (shot-peening bead, shot, steel sand, quartz sand, diamond dust, iron sand, extra large sand) high velocity jet is arrived the pipe surface that needs processing, finish rust cleaning to round tube inner wall, dispose impurity, the variegated and oxide layer on surface, simultaneously can make the dielectric surface alligatoring, reduce the residual stress of substrate surface, improve substrate surface hardness.Sandblast dust arrester 8 is used for the sandblast operation finish after, the collection to discarded object prevents the pollution of the environment.
Show among the figure that spray-painting plant 7 is installed in the front end of the workbench 4 that sprays paint, the dust arrester 9 that sprays paint is installed in the rear end of the workbench 4 that sprays paint, and forms painting line.Paint vehicle mouth and compressed air mouth are arranged on the painting line, are power with compressed air, the paint vehicle high velocity jet are arrived the pipe surface that needs processing.The dust arrester 9 that sprays paint is used for spray painting operation finish after, the collection to discarded object prevents the pollution of the environment.Painting line can be finished round tube inner wall is sprayed paint, and reaches requirement for anticorrosion, prolongs the service life of pipe.Spraying rate is fast, has reduced environmental pollution, avoids workman's harmful work.
Be separately installed with inductor on sandblast workbench 2, upset bin 3, the workbench 4 that sprays paint, inductor is connected with the control device of sand blasting unit 6, spray-painting plant 7.
The utility model can carry out sandblast to the round tube inner wall of the internal diameter φ 30-φ 50 of 1.5-12 rice, the processing of spraying paint.
Show among the figure, sand blasting unit 6 comprises sandblast conveying mechanism 10, Sand-blasting spraying gun 11, sandblast nozzle 12, sandblast pipeline, compressed air line, sandblast nozzle 12 is installed in the front end of Sand-blasting spraying gun 11, the rear end of Sand-blasting spraying gun 11 is connected with sandblast pipeline, compressed air line, sandblast structure for conveying 10 is connected with Sand-blasting spraying gun 11, sandblast conveying mechanism 10 can make Sand-blasting spraying gun 11 move along the axis of sandblast workbench 2, and the front end of Sand-blasting spraying gun 11 is relative with the pipe center on the sandblast workbench 2.
Show among the figure, spray-painting plant 7 comprises the conveying mechanism 13 that sprays paint, the spray gun 14 that sprays paint, the nozzle 15 that sprays paint, the pipeline that sprays paint, compressed air line, the nozzle 15 that sprays paint is installed in the front end of the spray gun 14 that sprays paint, the spray paint rear end of spray gun 14 is connected with the pipeline that sprays paint, compressed air line, the structure for conveying 13 that sprays paint is connected with the spray gun 14 that sprays paint, the conveying mechanism 13 that sprays paint can make the spray gun 14 that sprays paint move along the axis of the workbench 4 that sprays paint, and the front end of the spray gun 14 that sprays paint is relative with the pipe center on the workbench 4 that sprays paint.
Above-mentioned sandblast conveying mechanism 10, the conveying mechanism 13 that sprays paint can be the worm and gear structures, also can be gear ﹠ rack structures, or leading screw screw structure and other transfer structure, and they are driven Sand-blasting spraying gun 11 and moved forward and backward with the spray gun 14 that sprays paint by motor-driven.
Show among the figure, the feed mechanism of the below of sandblast workbench 2, the workbench 4 that sprays paint has a plurality of, arrange along the axially parallel of sandblast workbench 2, the workbench 4 that sprays paint respectively, its effect is to be transplanted at the pipe on sandblast workbench 2, the workbench 4 that sprays paint on upset bin 3 and the blanking rack 5.Feed mechanism is made up of driving lever 16 and hydraulic cylinder 17, and the upper end of driving lever 16 is positioned at sandblast workbench 2, the below of workbench 4 of spraying paint, and the lower end of driving lever 16 is connected with hydraulic cylinder 17 push rods.
The course of work of the present utility model is as follows:
Be put on the V-type surface of sandblast workbench 2 by material blocking rod 18 at the pipe workpiece on the stock shelf 1, the inductor inductor that sandblast workbench 2 is installed is expected the position, the sandblast conveying mechanism 10 of sand blasting unit 6 starts, the sandblast nozzle 12 that drives Sand-blasting spraying gun 11 stretches in the pipe, and at the uniform velocity to carry out blasting treatment, after inductor is sensed whole round tube inner wall and has been sprayed, automatically close the sand pellet valve of sandblast pipeline, only feed compressed air, sandblast conveying mechanism 10 is at the uniform velocity to take back Sand-blasting spraying gun 11, compressed air just with after the sandblast attached to the dust of round tube inner wall, refuses such as residue are taken out of, after inductor is sensed sandblast nozzle 12 disengaging pipes, the driving lever 16 of the feed mechanism of sandblast workbench 2 belows is turned to the pipe workpiece on the upset bin 3, simultaneously there is the new pipe for the treatment of sandblast to move on the sandblast workbench 2 again, repeats above-mentioned sandblast action by stock shelf 1.In this process, the waste collection after sandblast dust arrester 8 will spray reduces environmental pollution.
When the pipe of upset bin 3 opposite sides moves on the V-type surface of the workbench 4 that sprays paint, the inductor on the workbench 2 of spraying paint is sensed the pipe that is got off by upset bin 3 and is put in place, the conveying mechanism 13 that sprays paint of spray-painting plant 7 starts, drive has to spray paint robs 14 the nozzle 15 that sprays paint and stretches in the pipe, and with the processing of at the uniform velocity spraying paint, after inductor is sensed whole round tube inner wall and has been sprayed, automatically close the paint vehicle ball valve of the pipeline that sprays paint, only feed compressed air, the conveying mechanism 13 that sprays paint is taken back with the spray gun 14 that at the uniform velocity will spray paint, after just will spraying paint, takes out of compressed air attached to the residue of round tube inner wall, after inductor is sensed the nozzle 15 disengaging pipes that spray paint, the driving lever 16 of feed mechanism of workbench 4 belows of spraying paint is turned to pipe on the blanking rack 5, waits to take away.This process has new pipe to be sprayed paint to be moved on the workbench 4 that sprays paint by upset bin 3 again simultaneously, and action repeats to spray paint.
Claims (4)
1. automatic sandblast of round tube inner wall, painting line, it is characterized in that: it is by stock shelf (1), sandblast workbench (2), upset bin (3), workbench (4) sprays paint, blanking rack (5), sand blasting unit (6), spray-painting plant (7), sandblast dust arrester (8), the dust arrester (9) that sprays paint is formed, stock shelf (1), sandblast workbench (2), upset bin (3), workbench (4) sprays paint, the parallel order of blanking rack (5) is arranged, sand blasting unit (6) and spray-painting plant (7) are installed in the front end of sandblast workbench (2) and the workbench that sprays paint (4) respectively, sandblast dust arrester (8) and the dust arrester that sprays paint (9) are installed in the rear end of sandblast workbench (2) and the workbench that sprays paint (4) respectively, in sandblast workbench (2), upset bin (3), spray paint and be separately installed with inductor, inductor and sand blasting unit (6) on the workbench (4), the control device of spray-painting plant (7) is connected.
2. the automatic sandblast of round tube inner wall according to claim 1, painting line, it is characterized in that: described sand blasting unit (6) comprises sandblast conveying mechanism (10), Sand-blasting spraying gun (11), sandblast nozzle (12), the sandblast pipeline, compressed air line, sandblast nozzle (12) is installed in the front end of Sand-blasting spraying gun (11), the rear end of Sand-blasting spraying gun (11) and sandblast pipeline, compressed air line is connected, sandblast structure for conveying (10) is connected with Sand-blasting spraying gun (11), the dead in line of the mobile axis of Sand-blasting spraying gun (11) and sandblast workbench (2), the front end of Sand-blasting spraying gun (11) is relative with the pipe center on the sandblast workbench (2).
3. the automatic sandblast of round tube inner wall according to claim 1 and 2, painting line, it is characterized in that: described spray-painting plant (7) comprises the conveying mechanism that sprays paint (13), spray gun (14) sprays paint, nozzle (15) sprays paint, pipeline sprays paint, compressed air line, the nozzle (15) that sprays paint is installed in the front end of the spray gun that sprays paint (14), the rear end of spray gun (14) and the pipeline that sprays paint spray paint, compressed air line is connected, the structure for conveying (13) that sprays paint is connected with the spray gun that sprays paint (14), spray paint spray gun (14) mobile axis with spray paint the dead in line of workbench (4), the front end of the spray gun that sprays paint (14) is relative with the pipe center on the workbench that sprays paint (4).
4. the automatic sandblast of round tube inner wall according to claim 3, painting line, it is characterized in that: the below of described sandblast workbench (2), the workbench that sprays paint (4) is equipped with feed mechanism, feed mechanism has a plurality of, arrange along the axially parallel of sandblast workbench (2), the workbench that sprays paint (4) respectively, feed mechanism is made up of driving lever (16) and hydraulic cylinder (17), the upper end of driving lever (16) is positioned at the below of sandblast workbench (2), the workbench that sprays paint (4), and the lower end of driving lever (16) is connected with hydraulic cylinder (17) push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320078571.8U CN203092360U (en) | 2013-02-20 | 2013-02-20 | Circular tube inner wall automatic sand blasting and painting production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320078571.8U CN203092360U (en) | 2013-02-20 | 2013-02-20 | Circular tube inner wall automatic sand blasting and painting production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203092360U true CN203092360U (en) | 2013-07-31 |
Family
ID=48843803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320078571.8U Expired - Fee Related CN203092360U (en) | 2013-02-20 | 2013-02-20 | Circular tube inner wall automatic sand blasting and painting production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203092360U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000040A (en) * | 2019-03-29 | 2019-07-12 | 广东大卡住宅科技有限公司 | A kind of SMC product automatic spraying production line |
| CN112454176A (en) * | 2020-11-30 | 2021-03-09 | 山西海隆石油技术有限公司 | Automatic sand blasting transmission purging device for special pipeline for petroleum and using method thereof |
| CN114178993A (en) * | 2021-12-14 | 2022-03-15 | 中国核工业二四建设有限公司 | Rust removal paint spraying equipment and method |
-
2013
- 2013-02-20 CN CN201320078571.8U patent/CN203092360U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000040A (en) * | 2019-03-29 | 2019-07-12 | 广东大卡住宅科技有限公司 | A kind of SMC product automatic spraying production line |
| CN112454176A (en) * | 2020-11-30 | 2021-03-09 | 山西海隆石油技术有限公司 | Automatic sand blasting transmission purging device for special pipeline for petroleum and using method thereof |
| CN112454176B (en) * | 2020-11-30 | 2025-02-21 | 山西海隆石油技术有限公司 | Automatic transmission and automatic purge device for sandblasting of petroleum pipeline and its use method |
| CN114178993A (en) * | 2021-12-14 | 2022-03-15 | 中国核工业二四建设有限公司 | Rust removal paint spraying equipment and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20170220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |