CN2399161Y - Vacuum peening machine - Google Patents
Vacuum peening machine Download PDFInfo
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- CN2399161Y CN2399161Y CN 99255364 CN99255364U CN2399161Y CN 2399161 Y CN2399161 Y CN 2399161Y CN 99255364 CN99255364 CN 99255364 CN 99255364 U CN99255364 U CN 99255364U CN 2399161 Y CN2399161 Y CN 2399161Y
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Abstract
The utility model relates to a vacuum peening machine which belongs to the technical field of mechanical manufacture. The vacuum peening machine mainly comprises a three-layer sand treating barn arranged on a chassis of a machine frame, a sand amount regulating valve, a gritty dust separator, an air filter, a negative pressure ejector, and an air compressor. A single chip machine is used for controlling the switching upper and lower valves. The utility model has the advantages of non environment pollution, good for the health of operating personnel, periodic use of sand, safe operation, low production cost, etc.
Description
The utility model belongs to machinery manufacturing technology field, the particularly improvement of sand-blasting machine structure design.
Sand-blasting machine is the treatment facility that gives of hardware and product surface application.Traditional sandblast operation is the open working mode, promptly directly sprays with corrosion thing that is eliminated and waste and old coating dust at operation medium sand material and raises in surrounding environment, causes serious environmental to pollute, and the damage operating personnel are healthy, waste the sand material in a large number.
According to the Chinese patent communique, has the existing following utility model patent of the circulating sand-blasting machine that reclaims function: 93204845.5 (sand-blasting machine is reclaimed in circulation automatically), (94200843.X circulation sand-blasting machine), 94241255.9 (reclaiming automatic circulation sand-blasting machine) and 98202471 (full-automatic closed circulation formula sand-blasting machine).Wherein No. 98202471 disclosed technical schemes of utility model patent mainly comprise: spray gun, sand dust separator, three floor sand are handled storehouse, sand adjustable valve, air cleaner, negative pressure injector, air compressor and electromagnetic valve controlling system.This patent has following weak point: the design of spray gun spray intracanalicular type is reasonable inadequately; Do not use and transfer the sand valve, the sand amount can not be regulated in real time according to need of work; Sand circular treatment use relay circuit control reliability is low, working life short; Negative pressure injector inefficiency; Air filtration adopts tubular cloth bag filter area little, makes to filter volume increase, entire arrangement inconvenience.
The purpose of this utility model is for overcoming the weak point of prior art, the structure of existing vacuum sand-blasting machine critical piece is transformed, and not only general layout is more reasonable to make it, and working stability is reliable, and working service is convenient, improves sandblast efficient and injection efficient; And can realize the sand material open/close step-less adjustment with the sand amount fast, guarantee that the optimised quantity by job requirements mixes the sand material in high pressure draught, the circulation of sand material is reused.
The utility model is designed a kind of vacuum sand-blasting machine, mainly comprise: be installed in three layers of sand processing storehouse, sand adjustable valve, sand dust separator, air cleaner, negative pressure injector, air compressor and control module on the rack chassis, wherein, the last storehouse that said three layers of sand are handled the storehouse is connected with the sand dust separator, Xia Cang communicates with the sand adjustable valve, and the outlet of sand adjustable valve links to each other with spray gun by sand-blast hose; This sand dust separator links to each other successively with air cleaner, negative pressure injector, air compressor, it is characterized in that, Shang Cang and Xia Cang that said three layers of sand are handled the storehouse are respectively equipped with two conical valves up and down, and said control module adopts the Single-chip Controlling folding of two valves up and down.Vacuum sand-blasting machine as claimed in claim 1, it is characterized in that, said spray gun is made up of rifle body, Laval nozzle, porous expanded casing, sand block hairbrush and recovery of casing, the Laval nozzle import that wherein is bumped into rifle body protecting sheathing links to each other with sand-blast hose, outlet is joined with porous expansion inner sleeve, and rifle body case front end connects the sand block hairbrush; Annulus between rifle body case and the porous expansion inner sleeve is recovery of casing.
Said sand adjustable valve can be by the valve pipe, can flatten flexible pipe, mulling pipe, pressure head, diaphragme type cylinder forms; This sand adjustable valve import is connected with the following storehouse in three layers of sand material pressurization storehouse, and outlet is connected with the mulling pipe, and this mulling pipe upstream connects compressed air inlet pipe, and the downstream is connected to high-efficient spray gun by sand-blast hose.
Said Single-chip Controlling unit can adopt the 89C2051 single-chip microcomputer to form the cyclic control system of lower valve on three layers of sand material pressurization storehouse.
Said upper and lower conical valve, wherein, lower valve can adopt the valve of ultrathin air cylinder driven; Last valve can by the storehouse press drive voluntarily by valve body, valve cone, extension spring, add air pipe, filter bag and support and form valve, its valve body is fixed on bottom the storehouse by support.
Said negative pressure injector can adopt supersonic speed multiinjector ejectors technique.This negative pressure injector is made up of housing and nozzle cluster, and its import is connected with the upper end of air cleaner, and the logical formed vacuum suction band of the atmosphere dirt air-flow of outlet enters air cleaner by the below.
Said air cleaner can adopt board-like cloth bag air cleaner, and this filter is installed in the cylindrical shell by 17 board-like cloth bags to be formed.
Operation principle of the present utility model is:
Air compressor with air pressurized to 0.6 ~ 0.7Mpa after, mix the sand material of the required optimised quantity of operation by the sand adjustable valve, deliver to the high-efficient spray gun that has recovery of casing through sand-blast hose again.The Laval nozzle that spray gun throat makes for the special, wear-resistant pottery.This jet pipe makes air-flow reach the supersonic speed state, and the sand material high speed impact of carrying under one's arms is cleared up the surface, peels off corrosion thing and waste and old coating.The sand material of ejection and reclaimed by the negative pressure recovery of casing on the spray gun by the corrosion thing that peeled off and waste and old coating dust and send into the sand dust separator, by centrifugal action with sand material and dust separation; The sand material enters the last storehouse in three layers of sand material pressurization storehouse through the screen cloth screening.Two valves up and down by three layers of sand material pressurization of Single-chip Controlling storehouse make the sand material be entered down the hyperbaric environment in storehouse by the subnormal ambient in last storehouse continuously circularly.Sand material after the pressurization is sent to the sand adjustable valve, mixes high pressure draught and reuses.Dust is inhaled into board-like cloth bag air cleaner (negative pressure is formed by the efficient negative pressure injector of multiinjector).Corrosion thing and waste and old coating dust then are inhaled into board-like cloth bag air cleaner and filter, and then sink in the closed box to treat regularly to go out clearly.
The utlity model has following characteristics:
First key technology of the present utility model is high-efficient spray gun.The flow pattern design of the Laval nozzle of this spray gun guarantees that air-flow reaches the supersonic speed outlet.The porous expanded casing increases the nozzle exit negative pressure space, has improved the angle of flare that contains the sand air-flow, thereby has improved sandblast efficient greatly.
Second key technology of the present utility model is to have designed sand adjustable valve simple and reliable for structure.That has realized the sand material opens/closes step-less adjustment with the sand amount fast, has guaranteed that the optimised quantity by job requirements mixes the sand material in high pressure draught.
The 3rd key technology of the present utility model is to have designed by the monolithic processor controlled three layers of sand material pressurization of 89C2051 storehouse.Last storehouse is a negative pressure sand material recovery bin, and following storehouse is that high pressure sand material mixes the storehouse, and middle storehouse then is by electro connecting pressure gauge and monolithic processor controlled circulation pressurization storehouse.Middle storehouse makes the sand material by negative pressure state, zero-pressure state and barotropic state cyclic transformation by certain logical program, guarantees that the sand material need enter the sand adjustable valve by the sandblast operation, supplies with spray gun and finishes the sandblast operation.The circulation of sand material is reused.
The 4th key technology of the present utility model is the upper and lower conical valve that has designed three layers of sand material pressurization storehouse.Lower valve adopts ultrathin air cylinder driven to save down the volume in storehouse.Last valve adopts by the storehouse presses the rise stroke of valve on the cone valve that drives voluntarily to add the pressure gas channel realization by middle storehouse, and sealing compresses by the pressure reduction in Zhong Cang and last storehouse to be finished.Descending stroke relies on cone valve deadweight and tension spring tension effect to realize after by last, middle storehouse air pressure balance.These two valve mechanisms are simple, and working stability is reliable.
The 5th key technology of the present utility model is to have designed special efficient negative pressure injector, adopts supersonic speed multiinjector injector to form negative pressure.Its injection shower nozzle is made up of a plurality of nozzles, and has the outer angle of flare, to increase the injection area, improves injection efficient.
The 6th key technology of this practicality is to have designed board-like cloth bag air cleaner.Because board-like cloth bag surface area is big, its volume ratio drum type brake cloth envelop collector commonly used has dwindled twice nearly, has also reduced the loss of head that air communication is crossed filter simultaneously.
Brief Description Of Drawings
Fig. 1 is the prior art structured flowchart.
Fig. 2 is an embodiment general structure schematic diagram of the present utility model.
Fig. 3 is the high-efficient spray gun structural representation of the band negative pressure recovery of casing of present embodiment
Fig. 4 is the sand adjustable valve structural representation of present embodiment
Fig. 5 is three layers of sand material pressurization chamber structure schematic diagram of present embodiment
Fig. 6 is the last valve mechanism schematic diagram in the sand material pressurization storehouse of present embodiment
Fig. 7 is the efficient negative pressure injector of the multiinjector of a present embodiment structural representation
Fig. 8 is the board-like cloth bag air filter arrangement schematic diagram of present embodiment
The utility model is designed a kind of vacuum sand-blasting machine embodiment shown in Fig. 1-8, is described in detail as follows in conjunction with each figure:
The general structure of the vacuum sand-blasting machine of present embodiment is made up of following critical piece as shown in Figure 2:
The high-efficient spray gun 21 of band negative pressure recovery of casing, sand adjustable valve 22, three layers of sand material pressurization storehouse 23, cyclone type sand dust separator 24, single-chip computer control system 25, the efficient negative pressure injector 26 of multiinjector, board-like cloth bag air cleaner 27, noise silencer 28, rack chassis 29.
The annexation of each parts is:
The last storehouse in three layers of sand material pressurization storehouse 23 is connected with cyclone type sand dust separator 24, and Xia Cang communicates with sand adjustable valve 22.The outlet of sand adjustable valve 22 connects sand-blast hose (not shown in the circle).Contain the sand air-flow and deliver to the high-efficient spray gun 1 of band negative pressure recovery of casing through sand-blast hose.The sand material of spray gun ejection and the corrosion thing that is eliminated and waste and old coating dust reclaim and send into sand dust separator 24 by the negative pressure recovery of casing.After sand, dirt separated, dust was inhaled into board-like cloth bag air cleaner 27.Negative pressure is formed by the efficient negative pressure injector of multiinjector.The sand material enters the last storehouse in three layers of sand material pressurization storehouse 23 through the screen cloth screening.Two valves up and down by three layers of sand material pressurization of single-chip computer control system storehouse make the sand material be entered down the hyperbaric environment in storehouse by the subnormal ambient in last storehouse continuously circularly.Sand material after the pressurization is delivered to the high-efficient spray gun of band negative pressure recovery of casing through sand adjustable valve and sand-blast hose.
Complete machine work operational process is as follows: (1) starts air compressor, produces the compressed air of 0.6～0.8MPa.(2) start the negative pressure injector, cause in the storehouse-0.02～-negative pressure of 0.025MPa.(3) pressure-air mixes the sand material of job requirements amount through the sand adjustable valve, holds the sand air-flow under the arm and enters spray gun, and after Laval nozzle quickened, corrosion thing and waste and old coating were peeled off in the corrosion metals surface that high speed impact is cleared up.(4) sand material and the corrosion thing and the waste and old coating of the ejection of spray gun negative pressure casing recovery suck cyclone type sand dust separator, and the sand material glides along wall under centrifugal action, enter the last storehouse in three layers of sand material pressurization storehouse through the screen cloth screening.This moment, the sand material was in subnormal ambient.(5) by chip microcontroller logical program control, the storehouse enters negative pressure state and with after last storehouse pressure equates in treating, last valve open.The sand material falls into the storehouse.(6) go up valve closing, middle pressure pressurization treats that Zhong Cang equates valve open at present with following storehouse pressure, and the sand material enters Xia Cang.(7) by the control of sand adjustable valve, the sand amount of job requirements is mixed high pressure draught, and deliver to spray gun and finish the sandblast operation.(8) above the 3rd step to the 8th step is pressed some cycles circulation running.(9) corrosion thing and waste and old coating dust suck board-like cloth envelop collector by negative pressure, and dust sinks in the closed box of filter below and remains regularly to be gone out clearly after filtering.
The detailed structure of each parts of present embodiment is described as follows:
(1) the high-efficient spray gun structure of the band negative pressure recovery of casing of present embodiment as shown in Figure 3.This spray gun is made up of cover 33, sand block hairbrush 34 and recovery of casing 35 in rifle body 31, Laval nozzle 32, the porous expansion.
Laval nozzle 32 imports that are bumped in the rifle body 31 link to each other with sand-blast hose, and outlet is joined with porous expansion inner sleeve 33.Annulus between rifle body case 31 and the porous expansion inner sleeve 33 is recovery of casing 35.High pressure contains the sand air communication cross sand-blast hose and enter Laval nozzle that the boron carbide special ceramic material makes and quicken after, by the metal surface that cover high speed impact in the porous expansion is cleared up, remove surface attachments such as corrosion thing and waste and old coating.The negative pressure joint sleeve of rifle body is connected with the recovery flexible pipe.The negative pressure space that is formed by the sand block hairbrush reclaims the sand material of ejection and the corrosion thing dust that is peeled off, and delivers to the sand dust separator by the negative pressure recovery tube and separates sand material circulation repeat function.The interior molded lines design of Laval nozzle guarantees that air-flow reaches the outlet supersonic speed, and the sand material is driven by supersonic flow, and speed reaches about 200 meter per seconds.Laval nozzle reaches 400～600 hours friction durability.Porous expansion inner sleeve has adopted the wall liposuction technique, and the pressure of jet pipe diffuser is reduced, and negative pressure space increases, and the sand material quickens in advance, and increases the air-flow extended corner, white width thereby increase, and improves sandblast efficient about 30%.
(2) the sand adjustable valve of present embodiment is made up of as shown in Figure 4 following parts, comprising:
(3) three of present embodiment layers of sand material pressurization chamber structures are formed as shown in Figure 5, comprising: by last storehouse 501, middle storehouse 502, the warehouse 50 formed of storehouse 503, filter screen 51, by-passing valve 52, atmospheric valve 53, electro connecting pressure gauge 54, middle storehouse pressurizing valve 55, storehouse draught excluder 56, upward valve 57, lower valve 58 and 89C2051 single-chip microcomputer 59 and interface 591 down down.Negative pressure recovery sand material screen cloth after filtration falls into the storehouse.The storehouse is a negative pressure state on this moment, and following storehouse is barotropic state (keeping a little more than blasting pressure).Zhong Cang and following storehouse equipressure, the malleation contacting of the electro connecting pressure gauge that links to each other with middle storehouse, signal send interface microcontroller.Under the control of single-chip microcomputer logical program, vent valve is opened, the venting of middle storehouse, and by-passing valve is communicated with, the step-down of middle storehouse.When central storehouse air pressure dropped to last storehouse equipressure (negative pressure), last valve was descended by deadweight and tension spring tension effect, and last storehouse sand material falls into the storehouse.At this moment electro connecting pressure gauge negative pressure contacting, signal send single-chip microcomputer.SCM program control by-passing valve cuts out, and middle storehouse pressurizing valve is opened, and boosts and go up the valve rise in middle storehouse, middle storehouse path in the sealing.When central storehouse air pressure and following storehouse were isobaric, following storehouse draught excluder was opened, and lower valve falls, and the sand material enters Xia Cang, repeats above-mentioned cyclic process, realizes sand material without interruption.
(4) the upper and lower valve in three of present embodiment layers of sand material pressurization storehouse is to realize that circulation is for the important step of sand continuously.Lower valve is to adopt ultrathin cylinder directly to promote cone valve, and working stability is reliable.Ultra-thin cylinder volume is little thereby can save down the volume in storehouse.Last valve by valve body 61, cone valve 62, top cover 63, extension spring 64, add air pipe 65, filter bag 66, fixed support 67, bottom 68 and form, as shown in Figure 6.
Valve body is installed in the conical lower portion in storehouse by fixed support.Cone valve and valve body sliding fit.When Shang Cang, the pressure balance of middle storehouse, cone valve relies on deadweight and tension spring tension effect to fall automatically, and last storehouse sand material falls into the storehouse.In after the storehouse loads certain sand material, the storehouse adds pressure gas channel and gives the pressurization of middle storehouse in the unlatching, and cone valve is risen, middle storehouse path in the sealing, middle storehouse air pressure continue to be increased to following storehouse and equate.Because last storehouse is a negative pressure, middle storehouse is a malleation, and this pressure reduction has guaranteed to go up the sealing of gas circuit between middle storehouse and the bearing capacity of cone valve.
(5) the negative pressure injector of present embodiment is by shell 71 and 7 injector combined sprinklers 72 that nozzle is formed, as shown in Figure 7.
The injector shell is welded to form by several sections steel pipes, is divided into inducer, mixer and diffuser.Built up nozzle 72 is installed in mixer import position, and 7 nozzles are uniform on circumference.Each nozzle all has 4 degree outer enlarging-angles, and the injection area is increased, and it is about 10% that the injection shower nozzle of the single nozzle that operating efficiency is more identical than injection flow improves, and noise descends 6 decibels.
(6) present embodiment adopts board-like cloth envelop collector 7 as shown in Figure 8.Comprise filter box-body 81 and board-like cloth bag 82.Filter box-body 81 is designed to cylindrical shape, is made by steel plate roll extrusion, welding.17 board-like cloth bags 82 are housed in the casing.Board-like cloth bag is tightened on the strip support by filter cloth and constitutes.Dust-contained airflow tangentially enters cylindrical shell (cloth bag is outer) by the cylindrical shell bottom, and through the cloth bag filtration, clean air leans on the negative pressure sucking-off by cylindrical shell top (in the cloth bag), and enters atmosphere.
Air filtering dust-removing is the important step that environmental pollution is eliminated in the sandblast operation, and board-like cloth bag filter area is big, and existing 20 * 35 centimetres of cloth bag filter areas using just reach 0.14 square metre.The tubular style filter volume that board-like cloth envelop collector is more identical than filter area has been dwindled 2 times nearly, and filter efficiency improves, and working service is convenient, and general layout is also more reasonable.
Claims (7)
1. vacuum sand-blasting machine, mainly comprise: be installed in three layers of sand processing storehouse, sand adjustable valve, sand dust separator, air cleaner, negative pressure injector, air compressor and control module on the rack chassis, wherein, the last storehouse that said three layers of sand are handled the storehouse is connected with the sand dust separator, Xia Cang communicates with the sand adjustable valve, and the outlet of sand adjustable valve links to each other with spray gun by sand-blast hose; This sand dust separator links to each other successively with air cleaner, negative pressure injector, air compressor, it is characterized in that, Shang Cang and Xia Cang that said three layers of sand are handled the storehouse are respectively equipped with two conical valves up and down, and said control module adopts the Single-chip Controlling folding of two valves up and down.
2. vacuum sand-blasting machine as claimed in claim 1, it is characterized in that, said spray gun is made up of rifle body, Laval nozzle, porous expanded casing, sand block hairbrush and recovery of casing, the Laval nozzle import that wherein is bumped into rifle body protecting sheathing links to each other with sand-blast hose, outlet is joined with porous expansion inner sleeve, and rifle body case front end connects the sand block hairbrush; Annulus between rifle body case and the porous expansion inner sleeve is recovery of casing.
3. vacuum sand-blasting machine as claimed in claim 1 is characterized in that, said sand adjustable valve by the valve pipe, can flatten flexible pipe, mulling pipe, pressure head, diaphragme type cylinder and form; This sand adjustable valve import is connected with the following storehouse in three layers of sand material pressurization storehouse, and outlet is connected with the mulling pipe, and this mulling pipe upstream connects compressed air inlet pipe, and the downstream is connected to high-efficient spray gun by sand-blast hose.
4. vacuum sand-blasting machine as claimed in claim 1 is characterized in that, said Single-chip Controlling unit adopts the 89C2051 single-chip microcomputer.
5. vacuum sand-blasting machine as claimed in claim 1 is characterized in that, said upper and lower conical valve, and wherein, lower valve adopts the valve of ultrathin air cylinder driven; Last valve by the storehouse press drive voluntarily by valve body, valve cone, extension spring, add air pipe, filter bag and support and form valve, its valve body is fixed on bottom the storehouse by support.
6. vacuum sand-blasting machine as claimed in claim 1, it is characterized in that, said negative pressure injector is made up of housing and nozzle cluster, and its import is connected with the upper end of air cleaner, and the logical formed vacuum suction band of the atmosphere dirt air-flow of outlet enters air cleaner by the below.
7. vacuum sand-blasting machine as claimed in claim 1 is characterized in that, said air cleaner adopts and is installed in the board-like cloth bag air cleaner of forming in the cylindrical shell by 17 board-like cloth bags.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99255364 CN2399161Y (en) | 1999-12-03 | 1999-12-03 | Vacuum peening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99255364 CN2399161Y (en) | 1999-12-03 | 1999-12-03 | Vacuum peening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2399161Y true CN2399161Y (en) | 2000-10-04 |
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ID=34038741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99255364 Expired - Fee Related CN2399161Y (en) | 1999-12-03 | 1999-12-03 | Vacuum peening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2399161Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501184A (en) * | 2011-11-21 | 2012-06-20 | 万卓均 | Multifunctional full pneumatic sand spraying device |
| CN103302598A (en) * | 2012-03-09 | 2013-09-18 | 海纳微加工股份有限公司 | Vacuum pressure-differential micromachining apparatus and method |
| CN103481203A (en) * | 2013-09-10 | 2014-01-01 | 山东开泰工业科技有限公司 | Universal display and touch control integrated controller of throwing peening machine |
| CN104552023A (en) * | 2013-10-17 | 2015-04-29 | 昆山开信机械制造有限公司 | Numerical-control automatic shot blasting system for pipeline inner wall of thin and long steel pipe |
| CN105269462A (en) * | 2015-10-13 | 2016-01-27 | 江苏恒立高压油缸股份有限公司 | Sand blasting machine |
| CN106737229A (en) * | 2016-12-26 | 2017-05-31 | 上海良时智能科技股份有限公司 | A kind of online abrator head device |
| CN107639547A (en) * | 2016-07-21 | 2018-01-30 | 上海交通大学 | Seal closure for automatic sand blasting |
| CN109129200A (en) * | 2018-09-07 | 2019-01-04 | 浙江树人学院 | A kind of uniform sand blasting machine people of spraying |
-
1999
- 1999-12-03 CN CN 99255364 patent/CN2399161Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501184B (en) * | 2011-11-21 | 2015-01-21 | 万卓均 | Multifunctional full pneumatic sand spraying device |
| CN102501184A (en) * | 2011-11-21 | 2012-06-20 | 万卓均 | Multifunctional full pneumatic sand spraying device |
| CN103302598B (en) * | 2012-03-09 | 2016-06-08 | 海纳微加工股份有限公司 | Vacuum pressure differential micromachining device and method |
| CN103302598A (en) * | 2012-03-09 | 2013-09-18 | 海纳微加工股份有限公司 | Vacuum pressure-differential micromachining apparatus and method |
| CN103481203A (en) * | 2013-09-10 | 2014-01-01 | 山东开泰工业科技有限公司 | Universal display and touch control integrated controller of throwing peening machine |
| CN104552023A (en) * | 2013-10-17 | 2015-04-29 | 昆山开信机械制造有限公司 | Numerical-control automatic shot blasting system for pipeline inner wall of thin and long steel pipe |
| CN105269462A (en) * | 2015-10-13 | 2016-01-27 | 江苏恒立高压油缸股份有限公司 | Sand blasting machine |
| CN107639547A (en) * | 2016-07-21 | 2018-01-30 | 上海交通大学 | Seal closure for automatic sand blasting |
| CN107639547B (en) * | 2016-07-21 | 2020-06-12 | 上海交通大学 | Sealing cover for automatic sand blasting and rust removing |
| CN106737229A (en) * | 2016-12-26 | 2017-05-31 | 上海良时智能科技股份有限公司 | A kind of online abrator head device |
| CN106737229B (en) * | 2016-12-26 | 2019-01-08 | 上海良时智能科技股份有限公司 | A kind of online abrator head device |
| CN109129200A (en) * | 2018-09-07 | 2019-01-04 | 浙江树人学院 | A kind of uniform sand blasting machine people of spraying |
| CN109129200B (en) * | 2018-09-07 | 2020-05-15 | 浙江树人学院 | Even sandblast machine people of spraying |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |