CN1030718A - Gas-protecting type sand ejector - Google Patents
Gas-protecting type sand ejector Download PDFInfo
- Publication number
- CN1030718A CN1030718A CN 87103616 CN87103616A CN1030718A CN 1030718 A CN1030718 A CN 1030718A CN 87103616 CN87103616 CN 87103616 CN 87103616 A CN87103616 A CN 87103616A CN 1030718 A CN1030718 A CN 1030718A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- sanding machine
- compressed air
- main body
- sediment transport
- 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.)
- Withdrawn
Links
Images
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Nozzles (AREA)
Abstract
The present invention is the novel sanding machine that sand-blasting machine uses in the machining.Its novelty and advance are: form strong protective layer with high velocity air in the inner wall surface of nozzle; before sand grains is quickened under the constraint of high velocity air and then can not contact with the inner wall surface of nozzle; thereby avoided nozzle abrasion, improved the service life of sanding machine greatly.
Description
The sand-blasting machine device that the present invention relates to use in the machining.
Sand-blasting machine is a kind of machinery that piece surface is cleared up and polished.On a sand-blasting machine, several sanding machines are installed, all are connected with compressed air in each sanding machine.The effect of sanding machine is: when compressed air is sprayed by the sanding machine nozzle, produce negative pressure in the sediment transport conduit, abrasive material (liquid) is inhaled into the nozzle place through the sediment transport conduit, under compressed-air actuated promotion, abrasive material (liquid) quickens to spray to surface of the work in nozzle, thereby realizes cleaning and polishing to workpiece.
At present, the sanding machine that uses in industrial production is by the sanding machine main body, nozzle and other enclosure group become, the operation principle of this sanding machine is as follows: high velocity air enters nozzle by the compressed air inlet and is sprayed by nozzle, because the effect of high velocity air, abrasive material (liquid) porch is drawn onto the nozzle place, under the promotion of high velocity air, abrasive material (liquid) quickens to spray to surface of the work in nozzle, thereby realizes cleaning and polishing to workpiece.Because the abrasive grain of high-speed motion directly contacts with the nozzle inner wall surface, therefore nozzle there is strong ablation, so nozzle is promptly scrapped because of wear-out failure in use for some time.In order to improve the service life of nozzle, nozzle generally all is to make with special high-abrasive material.The sanding machine that uses with more domestic factories is example: the nozzle that Changchun First Motor Vehicle Plant uses is the carbide alloy cylinder that forms with the powder metallurgic method sintering, and wall thickness but has only 40 hours, the W of Shenyang Heavy Machinery Plant its service life more than 6mm
18C
R4Its life-span of nozzle of V alloy tool steel manufacturing has only 6 hours; The T of Changchun tractor plant
8Its life-span of the nozzle that steel is made is 4 hours.In order further to improve the service life of nozzle, more wear-resisting material is all being sought by many units.For example: the engineers and technicians of First Automobile Works have proposed to make with abrasive rubber the imagination of nozzle, and Mudanjiang tools factory is only second to adamantine cubic boron nitride with hardness and makes nozzle, and also have only 120 hours its service life.Above situation shows: the wearing and tearing of sanding machine nozzle are unsolved always for many years difficult problems, simple service life that relies on more wear-resisting material to improve nozzle are the wear problems that can not solve nozzle.
The objective of the invention is promptly to realize the essentially no wearing and tearing of nozzle in order to solve the wear problem of sanding machine nozzle, like this, can prolong greatly the service life of nozzle.
In order to solve the wear problem of sanding machine nozzle, the utility model proposes a kind of new technical scheme.The basic thought of this scheme is: forms strong protective layer with high velocity air in the inner wall surface of nozzle, makes abrasive material (liquid) under the constraint of high velocity air, both stoped with the nozzle inner wall surface to contact, and again can accelerated motion in air flow stream, ejection at a high speed.Its technical scheme is as follows, and consults the accompanying drawing narration.
The present invention proposes a kind of gas-protecting type sand ejector; nozzle unit especially for sand-blasting machine; it mainly is by sediment transport catheter interface (1); lock nut (2); sealing ring (3); centring ring (4); compressed air interface tube (5); sanding machine main body (6); nozzle block (7), nozzle (8) is formed, and it is characterized in that: the nozzle internal diameter adopts uiform section cylinder or variable cross-section gradually to put; convergent; pantograph structure; and with the coaxial assembling of sediment transport catheter interface (1), have some on its inwall vertically and survey the groove that the compressed air interface tubes (5) put communicate with sanding machine main body (6).
The architectural feature of above-mentioned gas protection sanding machine is: the sediment transport catheter interface (1) and the coaxial assembling of nozzle (8) of joining with abrasive material (liquid) holder; two ends are fixed in the sanding machine main body (6) by lock nut (2) and nozzle (7) respectively, and sanding machine main body (6) side has the compressed air interface tube (5) that joins with compressed air source.Between the inwall of the outer wall of sediment transport catheter interface (1) and sanding machine main body (6), form annular cavity, and communicate with compressed air interface tube (5).So that compressed air is flowed into.Sanding machine main body (6) is equipped with sealing ring (3) that prevents Compressed Gas and overflow and the centring ring (4) that is used to install the location with the junction of lock nut (2).The internal diameter of nozzle can adopt the uiform section column structure or variable cross-section is gradually put, convergent, pantograph structure according to different purposes, has some the grooves that communicate with compressed air interface tube (5) on its inwall vertically.
The architectural feature that the present invention is different from existing sanding machine is: (one), the moving conduit of abrasive material (liquid) in sanding machine are beeline channel, do not have any transformation or other obstruction; (2), have some grooves on the inwall of nozzle, compressed air sprays through groove.
Operation principle of the present invention is as follows: compressed air enters into the annular passage that sanding machine main body (6) and sediment transport catheter interface (1) are constituted via compressed air interface tube (5), sprays via the groove on nozzle (8) inwall downwards.The air-flow that sprays from groove has played following three effects: (one), form the strong protective layer of one deck at the nozzle inwall stops abrasive material (liquid) to contact with the nozzle inner wall surface; (2), in the sediment transport conduit, produce negative pressure, abrasive material (liquid) is drawn onto the nozzle place through sediment transport conduit and sediment transport catheter interface (1); (3), make abrasive material (liquid) in the high velocity air bundle of nozzle ejection, be sprayed onto surface of the work after the acceleration.
The present invention and existing sanding machine relatively have following substantive distinguishing features and marked improvement.
The present invention has changed in the prior art and has had the structure of certain angle between the sediment transport catheter interface and nozzle, and adopts coaxial feedthrough formula structure, has some the grooves with the nozzle axis coaxle on the inwall of nozzle, and compressed air is by spraying in the groove.It is unobstructed that above-mentioned new structure not only makes abrasive material (liquid) flow, and particularly makes the nozzle inner wall surface avoid contacting with abrasive material (liquid), thereby avoided the wearing and tearing of nozzle, prolongs the service life of sanding machine significantly.Also reduce simultaneously the broken loss of abrasive material (liquid), helped improving the efficient of sanding machine.This has just changed industrially attempts to seek to adopt high abrasion resisting material processing nozzle to improve the tradition in its service life
At present, the sanding machine that uses in industrial production generally all is to adopt high-abrasive material to make nozzle, and it is shaped as a simple cylindrical shape, and the problem that this nozzle exists is: the life-span is low, cost is high.The sanding machine that uses with Changchun First Motor Vehicle Plant is example: its nozzle is the carbide alloy cylinder that forms with the powder metallurgic method sintering, wall thickness is more than 6mm, heavy 0.75kg, surplus being worth 80 yuan, and having only 40 hours service life, annual every the sand-blasting machine of this factory only one of nozzle consumption just needs more than 10,000 yuan of cost, this shows, the wearing and tearing of nozzle cause very big waste to country, and consume a large amount of precious metals.
The utility model is started with from the structure of changing sanding machine and nozzle, has solved the wear problem of nozzle, and prolonged the service life of nozzle greatly, and whole sanding machine all uses the common iron manufacturing, thereby has saved the cost that precious metal has reduced sanding machine.
Description of drawings:
Fig. 1 is the installation diagram of an embodiment of the utility model.(1) sediment transport catheter interface; (2) lock nut; (3) sealing ring; (4) centring ring; (5) compressed air interface tube; (6) sanding machine main body; (7) nozzle block; (8) nozzle.
Fig. 2 is the vertical view of nozzle (8).
Fig. 3 is the cutaway view of nozzle (8) (gradually putting shape).
Implement the technique scheme that the utility model proposed, require compressed air should have 3kg/cm
2Above pressure (2.94 * 10
5P
a) and the flow of per minute more than one cubic metre.The cross sectional shape of nozzle can select for use uiform section cylindrical respectively according to the purposes difference, the variable cross-section convergent, gradually puts or scaled version.Show through experimental result: with nozzle length between 35～40mm, the internal diameter cone angle of nozzle is between 0 °～10 °, the width of being slotted on the nozzle inwall is between 0.2～0.4mm, can obtain optimum efficiency, accompanying drawing 1 is for implementing an embodiment in the technical solutions of the utility model, and its nozzle is for gradually putting shape, 3 ° of cone angles, nozzle inwall groove width is 0.4mm, and its length is 40mm.All parts of this sanding machine all can adopt the common iron manufacturing at (comprising nozzle), need not to use precious materials, and its processing all belongs to simple process.
Claims (1)
1, a kind of gas-protecting type sand ejector; nozzle unit especially for sand-blasting machine; it mainly is by sediment transport catheter interface (1); lock nut (2); sealing ring (3); centring ring (4); compressed air interface tube (5); sanding machine main body (6); nozzle block (7), nozzle (8) are formed, and it is characterized in that: the nozzle internal diameter adopts the uiform section cylinder or variable cross-section is gradually put, convergent, pantograph structure; and with the coaxial assembling of sediment transport catheter interface (1), have some on its inwall vertically and survey the groove that the compressed air interface tubes (5) put communicate with sanding machine main body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87103616.9A CN1004615B (en) | 1987-07-20 | 1987-07-20 | Gas protection type sand blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87103616.9A CN1004615B (en) | 1987-07-20 | 1987-07-20 | Gas protection type sand blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1030718A true CN1030718A (en) | 1989-02-01 |
| CN1004615B CN1004615B (en) | 1989-06-28 |
Family
ID=4814508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87103616.9A Expired CN1004615B (en) | 1987-07-20 | 1987-07-20 | Gas protection type sand blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1004615B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940394A (en) * | 2020-07-17 | 2020-11-17 | 上海富乐德智能科技发展有限公司 | Quartz component regeneration cleaning method of semiconductor high-order process APC device |
-
1987
- 1987-07-20 CN CN87103616.9A patent/CN1004615B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940394A (en) * | 2020-07-17 | 2020-11-17 | 上海富乐德智能科技发展有限公司 | Quartz component regeneration cleaning method of semiconductor high-order process APC device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1004615B (en) | 1989-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102430983B (en) | Two-side material supply type high-pressure grinding material water jet flow polishing device | |
| CN201275726Y (en) | Automatic sand-blasting machine suitable for processing outer surface of pipes | |
| CN106392885B (en) | The combined type trueing unit and dressing method of super-abrasive grinding wheel | |
| CN1502415A (en) | A method of machining a workpiece and apparatus for supplying mist used therein | |
| CN109129192B (en) | Polishing processing device and method for pneumatic suspension grinding material pool | |
| CN104552023B (en) | A kind of elongated steel pipeline inwall numerical control shot-peening automated system | |
| CN2056188U (en) | Jet-lengthening apparatus for drill bit | |
| CN202318016U (en) | Double-side feed type high-pressure abrasive water jet polishing device | |
| CN111826602B (en) | Preparation method of chemical slurry plunger pump with composite coating and product thereof | |
| CN110116372B (en) | Combined type efficient precise dressing method for superhard abrasive grinding wheel | |
| CN1053030A (en) | Polisher with jetted abrasive oil | |
| CN2363835Y (en) | Metal surface cleaning machine | |
| CN1030718A (en) | Gas-protecting type sand ejector | |
| CN112872974B (en) | Ultra-high-strength steel grinding strengthening platform and method based on structured abrasive particle grinding wheel | |
| CN2860742Y (en) | Hot-rolled stainless steel plate abrator | |
| CN111890216A (en) | Air pressure grinding material pool for finishing complex curved surface workpiece | |
| CN100569405C (en) | Metal bar and tubing are abandoned the rust device | |
| CN110900318A (en) | Mirror polishing processing method for injection mold | |
| CN1686668A (en) | Grinding wheel constraining abrasive particle injection precise dressing processing method and device | |
| CN102658464A (en) | Machining method of bearing channel | |
| CN214923561U (en) | High-pressure water jet lapping processing device for bearing raceway | |
| CN86208137U (en) | Wearless nozzle | |
| CN112317150A (en) | Rotating body for cleaning well with clearance sealing matched with labyrinth sealing | |
| CN202846376U (en) | Ceramic sandblast nozzle with groove at conical opening | |
| CN213855162U (en) | Rotating body for cleaning well with clearance sealing matched with labyrinth sealing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| 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 |