CN101347925A - Water jet cutting device - Google Patents
Water jet cutting device Download PDFInfo
- Publication number
- CN101347925A CN101347925A CNA2007103083294A CN200710308329A CN101347925A CN 101347925 A CN101347925 A CN 101347925A CN A2007103083294 A CNA2007103083294 A CN A2007103083294A CN 200710308329 A CN200710308329 A CN 200710308329A CN 101347925 A CN101347925 A CN 101347925A
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- CN
- China
- Prior art keywords
- abrasive grain
- nozzle
- main current
- water
- cutting device
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
- B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention provides a water jet cutting device with an abrasive particle gathering nozzle, which can improve the abrasive particle gathering degree, improve process precision and reduce the surface roughness of the machined object. The water jet cutting device comprises a nozzle for releasing mixing water which is the combination of high pressure water and abrasive particles and an abrasive particle gathering nozzle. A turbulent flow is formed to gather the abrasive particles and main water flow by inducing the sprinkling of some high pressure water that is divided from the main flow of the mixing water from the nozzle and sputters along the radial direction.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
The application requires the rights and interests of the korean patent application No.10-2007-0072839 that is entitled as " water jet cutting device " of submission on July 20th, 2007, and its content all is incorporated into the application with for referencial use.
Technical field
The present invention relates generally to a kind of water jet cutting device; and more particularly; relate to a kind of water jet cutting device that abrasive grain converges nozzle that has; this abrasive grain converges nozzle can increase converging of the abrasive grain that goes out from nozzle ejection with water under high pressure; with the cutting and process object to be processed, thereby improve machining accuracy and reduce the object surfaces roughness.
Background technology
Usually, when cutting or processing object to be processed, water jet cutting device uses abrasive grain and water under high pressure with predetermined diameter to come together to cut object to be processed, such as iron.Show in detail water jet cutting device among Fig. 4 according to known technology.
As shown in Figure 4, water jet cutting device 200 according to known technology is processed object to be processed by this way, that is: the abrasive grain that is incorporated in the auxiliary tank 220 by abrasive grain supply line 210 is directed to nozzle by the effect of cylinder 230 by abrasive grain discharge tube 240, and discharges from nozzle 260 with the water under high pressure by 250 supplies of high-pressure discharge pipeline.
Yet the known water jet cutting device with this structure has the low problem of machining accuracy, and reason is that abrasive grain radially sprays from the end of nozzle with water under high pressure.
Further problem is, because abrasive grain sputter radially, thereby the surface roughness of processed material of main part has worsened after processing.
Summary of the invention
Therefore, the present invention is devoted to solve foregoing problems, and converges nozzle by the abrasive grain that adopts the degree that converges that can increase abrasive grain arrival nozzle-end and improve machining accuracy.
According to an aspect of the present invention, provide a kind of water jet cutting device, it comprises: nozzle, give off mixing water, and described mixing water is to have the water under high pressure of high pressure and the mixture of abrasive grain; And the abrasive grain that forms turbulent flow converges nozzle, and turbulent flow is isolated and some high pressure water jets of sputter radially are sprinkled upon on the surface abrasive grain and main current are converged by making from the main current of the mixing water that formed by nozzle.
In water jet cutting device, preferably, nozzle has with abrasive grain and converges the discharge orifice that nozzle is communicated with.
In water jet cutting device, preferably, the abrasive grain with hollow cylindrical shape converges nozzle and comprises: one or more inwalls, converge in the nozzle perpendicular to main current setting at abrasive grain; One or more chambers are limited by one or more inwalls and sidewall; And discharge tube, be communicated with in one or more chambers any, discharge thereby mixing water converged the nozzle from abrasive grain.
In water jet cutting device, preferably, each in described one or more inwalls all has the aperture (orifice) that allows main current to pass through.
In water jet cutting device, preferably, discharge orifice has the diameter identical with aperture and discharge tube.
In water jet cutting device, preferably, in each of described one or more chambers, utilize from the sprinkling campaign of the isolated water under high pressure of main current and in position formation turbulent flow near described one or more inwalls.
In water jet cutting device, preferably, because converge in the main current, so the density of the abrasive grain in the main current all can increase during at every turn by each of described one or more chambers at main current owing to turbulent flow makes abrasive grain.
According to another aspect of the present invention, provide a kind of water jet cutting device, it comprises: abrasive grain supply line, the abrasive grain of transmission powder type; Auxiliary tank is connected in the abrasive grain supply line, is used to store abrasive grain; The water under high pressure supply line, transmission has the water under high pressure of high pressure; Nozzle is communicated with auxiliary tank and water under high pressure supply line, is used to discharge mixing water, and wherein mixing water is the mixture of abrasive grain and water under high pressure; And abrasive grain converges nozzle; it is connected in the end of nozzle in the mode that is connected with nozzle; and abrasive grain converges nozzle and has one or more chambers; in these one or more chambers, utilize to spray motion and make from main current and isolate and some water under high pressures of sputter radially form turbulent flows, so that from the main current of mixing water, isolate and the abrasive grain and the main current of sputter radially converge.
In water jet cutting device, preferably, abrasive grain converges nozzle and comprises: first, second and the 3rd inwall, converge in the nozzle at abrasive grain and to arrange perpendicular to main current; The first, second, third and the 4th chamber, by abrasive grain converge nozzle first, second and the 3rd inwall and sidewall limit; First, second and the 3rd aperture are respectively formed in first, second and the 3rd inwall, and with the discharge orifice coaxial arrangement; Discharge tube, coaxial with first, second and the 3rd aperture, and be arranged at the 4th chamber and go out mixing water to converge nozzle discharge from abrasive grain.
In water jet cutting device, preferably, discharge orifice, first to the 3rd aperture have identical diameter with discharge tube.
In water jet cutting device, preferably, be sprayed at successively on first to the 3rd inwall and the sidewall, thereby form the turbulent flow of pointing to main current from the more isolated water under high pressures of main current.
In water jet cutting device, preferably, converge with turbulent flow and main current from the more isolated water under high pressures of main current.
In water jet cutting device, preferably, when the density of main current abrasive grain in master's current during successively by first to fourth chamber can increase.
Description of drawings
By detailed description below in conjunction with accompanying drawing, will more be expressly understood above and other objects of the present invention, feature and other advantage, wherein:
Fig. 1 shows has the sectional view that abrasive grain according to an embodiment of the invention converges the water jet cutting device of nozzle;
Fig. 2 shows the amplification sectional view that the abrasive grain shown in Fig. 1 converges nozzle.
Fig. 3 A shows the abrasive grain shown in Fig. 2 to 3D and converges the schematic diagram that abrasive grain in the nozzle converges order; And
Fig. 4 shows the perspective view according to the water jet cutting device of known technology.
The specific embodiment
To describe water jet cutting device according to the preferred embodiment of the invention in more detail now, its example be shown in the accompanying drawing.
As shown in Figure 1, having the water jet cutting device 100 that abrasive grain according to an embodiment of the invention converges nozzle comprises: abrasive grain supply line 110, auxiliary tank 120, cylinder 130, abrasive grain discharge tube 140, water under high pressure supply line 150, nozzle 160 and abrasive grain converge nozzle 170.
Abrasive grain supply line 110 is used to transmit the graininess abrasive powders with predetermined diameter, and this powder is a fine-grained form.Abrasive grain supply line 110 is installed into auxiliary tank 120 and is communicated with.
When water jet cutting device 100 operations, optionally utilize from the energy drives cylinder 130 of outside supply, thereby the abrasive grain in the auxiliary tank 120 111 is supplied to abrasive grain discharge tube 140 continuously.
Abrasive grain discharge tube 140 is connected in auxiliary tank 120 and nozzle 160, and abrasive grain 111 is transferred to nozzle 160.
When driving water jet cutting device 100, the water under high pressure that water under high pressure supply line 150 uses the pump (not shown) will have predetermined pressure is supplied to nozzle 160, therefore, mix mutually by the abrasive grain 111 of abrasive grain discharge tube 140 supplies and the water under high pressure of supplying by high-pressure water pipeline 150.
Abrasive grain converges nozzle 170 integral body and is hollow cylindrical, and has a plurality of inwalls 171,172 and 173 of arranging perpendicular to mixed flow therein.Therefore, in hollow cylindrical structure, provide that limit and converge a plurality of chambers 174,175,176 and 177 that the longitudinal direction of nozzle 170 is arranged along abrasive grain by inwall 171,172 and 173.
With reference to Fig. 2, abrasive grain converges nozzle 170 and has four chambers 174,175,176 and 177 that limited by three inwalls 171,172 and 173.
The 4th chamber 177 has discharge tube 184, this discharge tube has the diameter identical with the 3rd aperture 183 with first aperture 181, second aperture 182, and the abrasive grain 111 that converged by first chamber 174, second chamber 175 and the 3rd chamber 176 of discharging and the mixing water of water under high pressure.
The high pressure water jets that is introduced in the chamber by mixing water ingate 178 is sprinkled upon on first to the 3rd inwall 171,172 and 173, and therefore forms turbulent flow in first to fourth chamber 174,175,176 and 177, thereby makes abrasive grain converge.Describe this operation with reference to Fig. 3 A in detail to 3B.
As shown in Figure 3A, abrasive grain 111 and the water under high pressure by abrasive grain discharge tube 140 and 150 transmission of water under high pressure supply line mixes in nozzle 160 mutually respectively, and this mixture is introduced in first chamber 174 subsequently.
Here, most water under high pressure (main current) advances to first aperture 181 with the state of converging, wherein High-Pressure Water has almost identical with the diameter of mixing water ingate 178 cross section, but with first chamber, the 174 more contacted water under high pressures with mixing water ingate 178 along the direction sputter shown in the arrow A.At this moment, some abrasive grains 111 are also with water under high pressure sputter (seeing the left part of Fig. 3 A).
The high pressure water jets of institute's sputter is sprinkled upon on first inwall 171 and in the position near first inwall 171 and forms the turbulent flow (along the direction shown in the arrow a) of pointing to main current.This makes abrasive grain 111 converge (right part of seeing Fig. 3 A) in the position near first aperture 181.
Shown in Fig. 3 B, the most of water under high pressure and the abrasive grain 111 (main current) that come from the transmission of first chamber 174 advance to second aperture 182 with the state that converges, but are sprayed at some water under high pressures on first inwall 171 with first aperture 181 along the direction sputter shown in the arrow B.At this moment, some abrasive grains 111 also with the water under high pressure of institute's sputter by sputter.
Yet, because owing to the density of the reason abrasive grain 111 in the turbulent flow in first chamber 174 and first aperture 181 has increased, so the amount of the abrasive grain that sputters from first aperture 181 has reduced (seeing the left part of Fig. 3 B).
The water under high pressure of institute's sputter and second inwall, 172 bumps, and in the turbulent flow (along the direction shown in the arrow b) that forms the main current of sensing near the position of second inwall 172, so abrasive grain 111 converges (right part of seeing Fig. 3 B) in the position near second aperture 182.
Shown in Fig. 3 C, the most of water under high pressure and the abrasive grain 111 that come from 175 transmission of second chamber advance to the 3rd aperture 183 with the state of converging, still with second inwall, the 172 more contacted water under high pressures sputters in the direction of arrow C with second aperture 182.At this moment, some abrasive grains 111 also with some water under high pressures by sputter.
Yet, because owing to the density of the reason abrasive grain 111 in the turbulent flow in second chamber 175 and second aperture 182 has increased, so the amount of the abrasive grain 111 of institute's sputter has reduced (seeing the left part of Fig. 3 C).
Form the turbulent flow (along the direction shown in the arrow c) of pointing to main current by some water under high pressures of sputter and the 3rd inwall 173 bump and in position, so abrasive grain 111 converges (right part of seeing Fig. 3 C) in the position near the 3rd aperture 183 near the 3rd inwall 173.
Shown in Fig. 3 D, the most of water under high pressure and the abrasive grain 111 that come from the transmission of the 3rd chamber 176 advance to discharge tube 184 with the state of converging, but with the 3rd inwall 173 more contacted water under high pressures along the direction sputter shown in the arrow D.At this moment, some abrasive grains 111 also with water under high pressure by sputter.
Yet, because owing to the density of the reason abrasive grain 111 in turbulent flow in the 3rd chamber 176 and the 3rd aperture 183 has increased, so reduced from the amount of the abrasive grain 111 of the 3rd aperture 183 sputters.Preferably, all abrasive grains 111 all converge to main current (seeing the left part among Fig. 3 D).
Form the turbulent flow (in the direction shown in the arrow d) of pointing to main current by the lower wall of the water under high pressure of sputter and the 4th chamber 177 bump and in position in the water under high pressure near discharge tube 184.This makes abrasive grain 111 converge (right part of seeing Fig. 3 D) in the position near discharge tube 184.
Because this operation, when main current passed through the first, second, third and the 4th chamber 174,175,176 and 177 successively, the abrasive grain 111 that discharges from discharge tube 184 converged to main current.Therefore, not sputter radially but converge on the processed object of abrasive grain 111.
Chamber 174,175,176 and 177 quantity, inwall 171,172 and 173 quantity and the diameter in aperture all are not limited to this embodiment, but can freely determine according to various factors, such as the size of abrasive grain 111, the amount of abrasive grain 111 and the pressure of carrying current.
Having the advantage that abrasive grain according to the present invention converges the water jet cutting device of nozzle is; by using some water under high pressures formation turbulent flows that converge the inwall bump of nozzle with abrasive grain; increase the density of the abrasive grain in the aperture by chamber, thereby increase machining accuracy.
Aforementioned invention is converged nozzle according to preferred embodiment to abrasive grain and is described in detail.Yet, it should be appreciated by those skilled in the art, under the prerequisite that does not deviate from scope and spirit of the present invention disclosed in the accompanying claims, can make various modifications, increase and replacement.
Claims (13)
1. water jet cutting device comprises:
Nozzle, the discharging mixing water, described mixing water is to have the water under high pressure of high pressure and the mixture of abrasive grain; And
Abrasive grain converges nozzle; by make in the described water under high pressure from the main current of the described mixing water that forms by described nozzle, isolate and the part of sputter radially through spraying motion, and form the turbulent flow that the described main current that make described abrasive grain and described mixing water converge.
2. water jet cutting device according to claim 1, wherein, described nozzle has with described abrasive grain and converges the discharge orifice that nozzle is communicated with.
3. water jet cutting device according to claim 1, wherein, described abrasive grain converges nozzle and has hollow cylindrical shape, and described abrasive grain converges nozzle and comprises:
One or more inwalls converge in the nozzle perpendicular to described main current setting at described abrasive grain;
One or more chambers are limited by described one or more inwalls and sidewall; And
Discharge tube is communicated with any of described one or more chambers, discharges described mixing water thereby converge nozzle from described abrasive grain.
4. water jet cutting device according to claim 3, wherein, each in described one or more inwalls all has the aperture, and described main current are by the transmission of described aperture.
5. water jet cutting device according to claim 4, wherein, described discharge orifice has the diameter identical with described discharge tube with described aperture.
6. water jet cutting device according to claim 3, wherein, in in described one or more chambers each, utilize the sprinkling campaign from the isolated described part of described main current of described water under high pressure, form turbulent flow in position near described one or more inwalls.
7. water jet cutting device according to claim 6; wherein; because described turbulent flow makes described abrasive grain converge to described main current, the density of the described abrasive grain in the described main current all increases when described main current pass in described one or more chamber each at every turn.
8. water jet cutting device comprises:
The abrasive grain supply line, the abrasive grain of transmission powder type;
Auxiliary tank is connected in described abrasive grain supply line, is used to store described abrasive grain;
The water under high pressure supply line, transmission has the water under high pressure of high pressure;
Nozzle is communicated with described auxiliary tank and described water under high pressure supply line, is used to discharge mixing water, and described mixing water is the mixture of described abrasive grain and described water under high pressure; And
Abrasive grain converges nozzle; it is connected in the end of described nozzle in the mode that is communicated with described nozzle; and described abrasive grain converges nozzle and has one or more chambers; in described one or more chambers; make isolating and the part of sputter radially forms turbulent flow of described water under high pressure by spraying motion, so that isolate and the described abrasive grain and the described main current of sputter radially converge from the described main current of described mixing water from main current.
9. water jet cutting device according to claim 8, wherein, described abrasive grain converges nozzle and comprises:
First inwall, second inwall and the 3rd inwall converge in the nozzle perpendicular to described main current setting at described abrasive grain;
First chamber, second chamber, the 3rd chamber and the 4th chamber, by described abrasive grain converge described first inwall of nozzle, described second inwall, described the 3rd inwall, and sidewall limit;
First aperture, second aperture and the 3rd aperture are respectively formed in described first inwall, described second inwall and described the 3rd inwall, and with the discharge orifice coaxial arrangement; And
Discharge tube with described first aperture, described second aperture and described the 3rd aperture coaxial arrangement, and is arranged at described the 4th chamber and discharges described mixing water to converge nozzle from described abrasive grain.
10. water jet cutting device according to claim 9, wherein, described discharge orifice, described first aperture to described the 3rd aperture have identical diameter with described discharge tube.
11. water jet cutting device according to claim 9, wherein, described water under high pressure be sprayed at described first inwall successively to described the 3rd inwall and described sidewall from the isolated part of described main current, thereby form the turbulent flow of pointing to described main current.
12. water jet cutting device according to claim 11, wherein, the converging with described main current together of described water under high pressure from isolated described part of described main current and described turbulent flow.
13. water jet cutting device according to claim 12, wherein, when described main current passed described first chamber successively to described the 4th chamber, the density of abrasive grain described in the described main current increased.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070072839 | 2007-07-20 | ||
| KR1020070072839A KR100843390B1 (en) | 2007-07-20 | 2007-07-20 | Water jet cutting device |
| KR10-2007-0072839 | 2007-07-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101347925A true CN101347925A (en) | 2009-01-21 |
| CN101347925B CN101347925B (en) | 2010-12-22 |
Family
ID=39823588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007103083294A Expired - Fee Related CN101347925B (en) | 2007-07-20 | 2007-12-29 | Water jet cutting device |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100843390B1 (en) |
| CN (1) | CN101347925B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015131513A1 (en) * | 2014-03-05 | 2015-09-11 | 中江机电科技江苏有限公司 | Water jet cutting machine |
| CN109434695A (en) * | 2018-12-18 | 2019-03-08 | 江苏富技腾机电科技有限公司 | A kind of water cutting machine for husky device and water cutting machine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101566495B1 (en) * | 2009-12-23 | 2015-11-06 | 재단법인 포항산업과학연구원 | Water jet cutting device |
| KR102577058B1 (en) | 2021-04-30 | 2023-09-11 | 남근식 | Water-jet processing apparatus for grainding surface |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50106715U (en) | 1974-02-08 | 1975-09-02 | ||
| US5152463A (en) | 1991-10-08 | 1992-10-06 | Delavan Inc. | Aspirating simplex spray nozzle |
| CN1099683A (en) * | 1993-09-03 | 1995-03-08 | 汤燮铭 | Ultra-high pressure water jet universal cutting machine |
| US5732885A (en) * | 1994-10-07 | 1998-03-31 | Spraying Systems Co. | Internal mix air atomizing spray nozzle |
| DE29903035U1 (en) * | 1999-02-19 | 1999-05-06 | Sächsische Werkzeug und Sondermaschinen GmbH, 01904 Neukirch | Cutting head body for an abrasive water jet cutting head |
| KR100454415B1 (en) * | 2003-02-18 | 2004-11-03 | 이형호 | Surface plate for high pressure injection nozzle |
| US7108585B1 (en) * | 2005-04-05 | 2006-09-19 | Dorfman Benjamin F | Multi-stage abrasive-liquid jet cutting head |
| CN1765582A (en) * | 2005-09-29 | 2006-05-03 | 江苏大学 | High-pressure abrasive material and water jet cutting head and blending tube |
-
2007
- 2007-07-20 KR KR1020070072839A patent/KR100843390B1/en active IP Right Grant
- 2007-12-29 CN CN2007103083294A patent/CN101347925B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015131513A1 (en) * | 2014-03-05 | 2015-09-11 | 中江机电科技江苏有限公司 | Water jet cutting machine |
| CN109434695A (en) * | 2018-12-18 | 2019-03-08 | 江苏富技腾机电科技有限公司 | A kind of water cutting machine for husky device and water cutting machine |
| CN109434695B (en) * | 2018-12-18 | 2024-06-21 | 江苏富技腾机电科技有限公司 | Sand supply device of water cutting machine and water cutting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101347925B (en) | 2010-12-22 |
| KR100843390B1 (en) | 2008-07-03 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20101222 Termination date: 20201229 |