CN102363285A - Abrasive water jet cutting spray head device - Google Patents
Abrasive water jet cutting spray head device Download PDFInfo
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- CN102363285A CN102363285A CN2011103473323A CN201110347332A CN102363285A CN 102363285 A CN102363285 A CN 102363285A CN 2011103473323 A CN2011103473323 A CN 2011103473323A CN 201110347332 A CN201110347332 A CN 201110347332A CN 102363285 A CN102363285 A CN 102363285A
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- sprayer body
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Abstract
The invention discloses an abrasive water jet cutting spray head device. The center of a spray head body is provided with a through hole, one end of the spray head body is provided with a high-pressure water inlet, an abrasive blasting pipe is arranged in a central hole of the other end of the spray head body, and a spring chuck is arranged at the end of the installation section of the abrasive blasting pipe. A water jet nozzle is positioned in the high-pressure water inlet of the spray head body. An abrasive mixing cavity is formed in an inner hole of the spray head body between the water jet nozzle and the abrasive blasting pipe. The shell of the spray head body is provided with a return water outlet, and the return water outlet corresponds to an abrasive inlet. The included angle between the central line of the return water outlet and the central line of the spray head body is 15 to 30 degrees. The abrasive mixing cavity is formed in the inner hole of the spray head body between the water jet nozzle and the abrasive blasting pipe. By symmetrically and uniformly forming sand inlets and return water holes, the return water produced when the sand blasting pipe 6 is blocked is prevented from entering an abrasive supply valve, and the reliability and the machining efficiency in the cutting process are improved. The device is simple in structure, convenient to machine and easy to implement.
Description
Technical field
The present invention relates to a kind of Abrasive Water Jet Machining field, specifically is the water cutting head in a kind of Abrasive Water Jet Machining device.
Background technology
The high-pressure grinding material water jet cutting technique; Be on pure water jet cutting technique basis, to grow up; It entrainments for example abrasive material such as diamond dust, quartz sand through high-speed water jet, in the abrasive material hybrid chamber, forms amalgam with water jet, and abrasive material is quickened the back with the mixed flow form by water jet; By the abrasive jet pipe inspection, form the high speed abrasive water-jet.As everyone knows, the water cutting equipment is widely used in cutting in the evil of various soft or hard materials, and purposes is more and more wider.When hard materials such as metal are cut, in order to improve cutting efficiency, must in water under high pressure, add abrasive materials such as garnet, abrasive material is impacted under the drive of high-pressure water jet fast cut material list
The auxiliary cutting of face.In the existing all kinds of Abrasive Water Jet Machining equipment, be to utilize the negative pressure of high-pressure water shot stream to be cut material surface with from the abrasive jet pipe, ejecting impact with high-pressure water jet in the suction of the abrasive material in the sand-feeding tube mulling chamber.
Abrasive waterjet nozzle body and abrasive material supply the sand device, are one of most important parts of cutting machine, directly influence cut quality, efficient and reliability.Be to guarantee the normal feed of abrasive material, the drying of abrasive can and feed is to guarantee, if abrasive can and feed humidifying then can cause tiny abrasive agglomerate, stopping up can not normal feed, loses cutting power, must shut down cleaning.And in actual cutting process, because factors such as the variation of the quality of abrasive material, water jet pressure and cutting experiences, the obstruction of abrasive jet pipe is inevitably in cutting process, and abrasive jet pipe plug plug promptly produces instantaneous high pressure water and refluxes.The mixed flow that refluxes directly gets into the abrasive material feeding device through the abrasive material feeder sleeve, causes abrasive material feeding system damp failure, can not normal feed, must shut down cleaning, so its continuous dependability is poor.
Prior art Abrasive Water-jet Cutting Machine abrasive material sprayer body and abrasive material supply in the sand device.For example Chinese patent utility model CN 200420109403.1 discloses a kind of novel water cutting machine that can prevent backwater with anti-backwater sand controlling valve; Application for a patent for invention number 02134867.7 discloses a kind of backwater control system of water cut-off machine, and one Chinese patent application numbers 200910035463.0 discloses a kind of equal negative pressure bidirectional sand inlet water cutting head.Mainly there are following weak point in abrasive waterjet nozzle body and sand controlling valve in the existing water jet cutting mach: 1, fault rate is higher, the inconvenience maintenance; 2, be prone to backwater, trouble is used in difficult cleaning.3, part is many, and is complex-shaped, and manufacturing cost is high.The existence of the problems referred to above has had a strong impact on the normal performance of the service behaviour of complete machine, usually supplies the sand fault because of backwater causes, and produces unnecessary shutdown, sand removal.Have influence on user's interests, even cause user's unnecessary loss.More than two big technology barriers, fail so far effectively to be solved, therefore still have improved space.
Summary of the invention
For overcoming higher, the inconvenience maintenance of the perhaps fault rate that exists in the prior art; Perhaps be prone to backwater, difficult cleaning, use trouble; Perhaps complex structure, the deficiency that manufacturing cost is high the present invention proposes a kind of Abrasive Water Jet Machining ejecting device.
The present invention includes water jet nozzle, abrasive material mulling chamber, sprayer body, blasting by abrasives pipe and abrasive material sand-feeding tube; There is through hole at the center of sprayer body; One end is the high pressure intake; The blasting by abrasives pipe is installed in the centre bore of the other end of sprayer body, and collet is installed in the end of blasting by abrasives pipe construction section, and through clamp nut described collet, blasting by abrasives pipe and sprayer body is connected; Water jet nozzle is positioned at the high pressure intake of sprayer body; Form abrasive material mulling chamber in the sprayer body endoporus between water jet nozzle and blasting by abrasives pipe; It is characterized in that, on the sprayer body housing, have the backwater outlet, described backwater outlet is corresponding with the abrasive material import; Angle between the center line of backwater outlet and the center line of sprayer body is 15～30 degree; Described abrasive material mulling chamber is to be formed by the sprayer body endoporus between water jet nozzle and the blasting by abrasives pipe.
The objective of the invention is to supply the sand inlet place of sand device negative pressure to be changed cause water jet to squint because of advancing sand to existing water cutting head and abrasive material; Make the impaired problem of damaging in advance and influencing cutting efficiency of sand blasting inside pipe wall; And easy backwater, problems such as trouble are used in difficult cleaning.It is simple to have designed a kind of abrasive material mixing cavity configuration, and wearability is good, and what have two symmetric arrangement advances sand hole and backwater hole, and the high-pressure grinding material water jet cutting machine with high reliability is with anti-backwater Abrasive Water Jet Machining sprayer body device.Because what be provided with two symmetric arrangement advances sand hole and backwater hole, each equates and can not produce the jet shift phenomenon that to negative pressure backwater hole can be avoided refluxing and cause the abrasive material feeding system to lose efficacy thereby make water jet.
The present invention advances sand hole and backwater hole with what the abrasive material feeder sleeve on the abrasive material sprayer body device was designed to symmetric arrangement.Occur refluxing when sprayer body stops up, can discharge through the backflow discharge pipe of this bypass, having avoided refluxing gets into feeding system, thereby has guaranteed abrasive material feeding system drying under any circumstance, has improved the sprayer body functional reliability.
Smooth and easy for the draining that helps refluxing, backflow discharge pipe and sprayer body axon less than 30 degree, are considered the installation of feeder sleeve to angle simultaneously, and the best is 15 degree, and promptly reflux breeches pipe and sprayer body axon are to angle.In addition, get into the abrasive material feeder sleeve for avoiding refluxing, abrasive material feeder sleeve and sprayer body body angle should be provided with greater than the backflow discharge pipe, and feeder sleeve and backflow discharge pipe angle are the 10-20 degree.
The present invention arranges into sand hole and backwater hole through symmetrical equilibrium; Elimination is stopped up the phenomenon that the backwater that causes enters into the abrasive material inlet valve by sand blasting pipe 6; Therefore the fault that backwater directly gets into the abrasive material inlet valve can not take place, help improving the reliability and the working (machining) efficiency of cutting process.The present invention is simple in structure, and is easy to process, is easy to realize.
Description of drawings
Fig. 1 is the structural representation of Abrasive Water Jet Machining sprayer body.Among the figure:
1. water jet nozzle 2. unidirectional valve gap 3. return pipes 4. cylinder ring abrasive material mulling chambeies 5. collets, 6. blasting by abrasives pipes, 7. clamp nuts, 8. sprayer bodies, 9. abrasive material sand-feeding tubes
The specific embodiment
Present embodiment is a kind of Abrasive Water Jet Machining sprayer body, comprises water jet nozzle 1, unidirectional valve gap 2, cylinder ring abrasive material mulling chamber 4, sprayer body 8, blasting by abrasives pipe 6 and abrasive material sand-feeding tube 9.There is through hole at the center of sprayer body 8; One end is the high pressure intake; Blasting by abrasives pipe 6 is installed in the centre bore of the other end of sprayer body 8; Collet 5 is installed in the end of blasting by abrasives pipe construction section, and through clamp nut 7 described collet 5, blasting by abrasives pipe 6 is connected with sprayer body 8; Water jet nozzle 1 is positioned at the high pressure intake of sprayer body.Form abrasive material mulling chamber 4 in sprayer body 8 endoporus between water jet nozzle 1 and blasting by abrasives pipe 6.
Have at sprayer body 8 on the housing of high pressure intake one end, symmetry have two through holes with sprayer body 8 inner chambers perforations; Described two through holes are respectively abrasive material import and backwater outlet.Confirm the center line of abrasive material import and the angle between sprayer body 8 center lines according to the granularity of abrasive material; And angle and abrasive grain between the center line of described abrasive material import and sprayer body 8 center lines are inversely proportional to; So that the suction of abrasive material, the angle between the center line of the center line of abrasive material import and sprayer body 8 is 30～45 degree.In the present embodiment, the angle between the center line of the center line of abrasive material import and sprayer body 8 is 40 degree.Between backwater center line of discharge and sprayer body 8 center lines angle is arranged, the angle of this angle is 15～30 degree less than the angle between the center line of abrasive material import center line and sprayer body 8.In the present embodiment, the angle between backwater center line of discharge and sprayer body 8 center lines is 20 degree.Sand-feeding tube 9 is installed in the abrasive material import, and return pipe 3 is installed in the backwater outlet.Unidirectional valve gap 2 is positioned at the exit of return pipe 3.
The other end of sprayer body 8 is the construction section of blasting by abrasives pipe 6.The internal diameter of this construction section is identical with the external diameter of blasting by abrasives pipe.The external diameter of blasting by abrasives pipe construction section has screw thread, is used for the screw-internal thread fit with clamp nut 7.Blasting by abrasives pipe 6 is packed in the endoporus of blasting by abrasives pipe construction section, and tightens up through clamp nut 7.The outer round surface of sprayer body 8 also is stepped.Sprayer body 8 stage casing external diameters are maximum, on the housing in this sprayer body stage casing symmetry be distributed with abrasive material import and backwater outlet, and between the axis of the center line that exports of the center line of abrasive material import and backwater and sprayer body 8 angle is arranged.Confirm the center line of abrasive material import and the angle between sprayer body 8 center lines according to the granularity of abrasive material; And angle and abrasive grain between the center line of described abrasive material import and sprayer body 8 center lines are inversely proportional to; So that the suction of abrasive material, the angle between the center line of the center line of abrasive material import and sprayer body 8 is 30～45 degree.In the present embodiment, the angle between the center line of the center line of abrasive material import and sprayer body 8 is 40 degree.Between backwater center line of discharge and sprayer body 8 center lines angle is arranged, the angle of this angle is 15～30 degree less than the angle between the center line of abrasive material import center line and sprayer body 8.Abrasive material import and backwater outlet are communicated with the small-bore section in sprayer body 8 endoporus stage casings respectively.In described abrasive material import, sand-feeding tube 9 is installed; In backwater outlet, return pipe 3 is installed, unidirectional valve gap 2 is installed in the outlet of return pipe 3.The external diameter of the blasting by abrasives pipe construction section of sprayer body 8 is identical with the internal diameter of collet 5.
Described return pipe 3 is the hollow revolving body.The outer surface of return pipe 3 one ends exports through the backwater on screw thread and sprayer body 8 housings and is connected.In the termination of described return pipe 3 other ends unidirectional valve gap 2 is arranged.
Described sand-feeding tube 9 is the hollow revolving body.The outer surface of sand-feeding tube 9 one ends is connected with abrasive material import on sprayer body 8 housings through screw thread.The other end is communicated with the abrasive material sand-feeding tube.
Blasting by abrasives pipe 6 is the hollow revolving body also, processes with carbide alloy.The external diameter of blasting by abrasives pipe 6 is identical with the internal diameter of the construction section of sprayer body 8 blasting by abrasives pipes 6.The internal diameter of blasting by abrasives pipe 6 is confirmed according to the material that is cut workpiece, is 0.5～1mm, and the internal diameter of blasting by abrasives pipe 6 is 0.8mm in the present embodiment.Said blasting by abrasives pipe 6 one ends are for advancing the sand end, and this advances the taper of the inner surface of sand end for contraction, formed the sand launder of leading of blasting by abrasives pipe 6, are beneficial to the importing of abrasive material.Said blasting by abrasives pipe 6 other ends are the abrasive water jet flow export.
In the present embodiment, the combination that is threaded with the clamp nut that through hole is axially arranged 7 of the sprayer body 8 of through hole is arranged axially.
During assembling; In sprayer body 8 front end conical surface holes, put into water jet nozzle 1, be pressed into changeable type annulus abrasive material mulling chamber 4, insert blasting by abrasives pipe 6 through the rear end; The blasting by abrasives pipe is equipped with taper nylon collet 5 outward, with clamping nut 7 blasting by abrasives pipe 6 and sprayer body 8 is made up, compresses then.Use a period of time, when abrasive material mulling chamber, the wearing and tearing of blasting by abrasives pipe, unclamp the sprayer body 8 and clamping nut 7 that are spirally connected, pushing tow withdraws from abrasive material mulling chamber 4, changes new abrasive material mulling chamber 4, a blasting by abrasives pipe 6, is spirally connected with clamping nut 7 then and screws.
Claims (1)
1. an Abrasive Water Jet Machining ejecting device comprises water jet nozzle, abrasive material mulling chamber, sprayer body, blasting by abrasives pipe and abrasive material sand-feeding tube; There is through hole at the center of sprayer body; One end is the high pressure intake; The blasting by abrasives pipe is installed in the centre bore of the other end of sprayer body, and collet is installed in the end of blasting by abrasives pipe construction section, and through clamp nut described collet, blasting by abrasives pipe and sprayer body is connected; Water jet nozzle is positioned at the high pressure intake of sprayer body; Form abrasive material mulling chamber in the sprayer body endoporus between water jet nozzle and blasting by abrasives pipe; It is characterized in that, on the sprayer body housing, have the backwater outlet, described backwater outlet is corresponding with the abrasive material import; Angle between the center line of backwater outlet and the center line of sprayer body is 15～30 degree; Described abrasive material mulling chamber is to be formed by the sprayer body endoporus between water jet nozzle and the blasting by abrasives pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103473323A CN102363285A (en) | 2011-11-04 | 2011-11-04 | Abrasive water jet cutting spray head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103473323A CN102363285A (en) | 2011-11-04 | 2011-11-04 | Abrasive water jet cutting spray head device |
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| CN102363285A true CN102363285A (en) | 2012-02-29 |
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| CN2011103473323A Pending CN102363285A (en) | 2011-11-04 | 2011-11-04 | Abrasive water jet cutting spray head device |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072091A (en) * | 2012-12-27 | 2013-05-01 | 广州华臻机械设备有限公司 | Sand supply device for waterjet |
| CN103639907A (en) * | 2013-12-16 | 2014-03-19 | 佛山市永盛达机械有限公司 | Sand valve |
| CN103862386A (en) * | 2014-03-14 | 2014-06-18 | 邓湘凌 | Water-cutting sand blasting pipe and manufacturing method thereof |
| CN104044080A (en) * | 2013-03-13 | 2014-09-17 | 东芝机械株式会社 | Spray gun for wet blasting |
| CN105690279A (en) * | 2016-04-07 | 2016-06-22 | 合肥通用机械研究院 | Water cutting nozzle with anti-water-return function |
| CN105773442A (en) * | 2016-04-07 | 2016-07-20 | 合肥通用机械研究院 | Ultrahigh-pressure water jet milling water cutter head and milling process thereof |
| CN106493643A (en) * | 2016-12-09 | 2017-03-15 | 重庆平步青云汽车配件有限公司 | A kind of cutting tool for rearview mirror |
| CN106863147A (en) * | 2017-03-16 | 2017-06-20 | 浙江久立特材科技股份有限公司 | A kind of pneumatic pill transmitting device |
| 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 |
| CN110153904A (en) * | 2019-06-05 | 2019-08-23 | 河南理工大学 | The abrasive material waterpower punching system and method for sand can continuously be added |
| CN110919547A (en) * | 2019-12-31 | 2020-03-27 | 安徽傲宇数控科技有限公司 | Movable water jet cutting machine for pre-mixed abrasive |
| CN112059924A (en) * | 2020-09-18 | 2020-12-11 | 香港理工大学 | Fluid linear jet polishing device and application method thereof |
| CN112166008A (en) * | 2018-05-25 | 2021-01-01 | Flow国际公司 | Abrasive fluid jet cutting systems, components, and related methods for cutting sensitive materials |
| WO2023122121A1 (en) * | 2021-12-20 | 2023-06-29 | Omax Corporation | Backflow diversion devices for liquid jet cutting systems, and associated systems and methods |
| US11872670B2 (en) | 2016-12-12 | 2024-01-16 | Omax Corporation | Recirculation of wet abrasive material in abrasive waterjet systems and related technology |
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| CN202318027U (en) * | 2011-11-04 | 2012-07-11 | 西安东风仪表厂 | Abrasive material water jet cutting spray head |
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| CN2110547U (en) * | 1989-11-14 | 1992-07-22 | 中国矿业大学 | Pre-mixed abrasive material and water jetting head |
| US6312324B1 (en) * | 1996-09-30 | 2001-11-06 | Osaka Diamond Industrial Co. | Superabrasive tool and method of manufacturing the same |
| CN101362315A (en) * | 2007-08-09 | 2009-02-11 | 江苏金润科技发展有限公司 | Nozzle apparatus for jet cutting by abrasive water |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072091A (en) * | 2012-12-27 | 2013-05-01 | 广州华臻机械设备有限公司 | Sand supply device for waterjet |
| CN104044080B (en) * | 2013-03-13 | 2016-09-14 | 东芝机械株式会社 | Wet blast ejecting gun |
| CN104044080A (en) * | 2013-03-13 | 2014-09-17 | 东芝机械株式会社 | Spray gun for wet blasting |
| CN103639907A (en) * | 2013-12-16 | 2014-03-19 | 佛山市永盛达机械有限公司 | Sand valve |
| CN103862386A (en) * | 2014-03-14 | 2014-06-18 | 邓湘凌 | Water-cutting sand blasting pipe and manufacturing method thereof |
| CN103862386B (en) * | 2014-03-14 | 2016-04-27 | 邓湘凌 | The preparation method of Water Cutting blast tube |
| CN105773442B (en) * | 2016-04-07 | 2019-05-28 | 合肥通用机械研究院有限公司 | A kind of ultra-high pressure water fluid jet milling water cutter head and its milling process |
| CN105690279B (en) * | 2016-04-07 | 2018-09-21 | 合肥通用机械研究院有限公司 | A kind of Water Cutting nozzle of anti-return water |
| CN105773442A (en) * | 2016-04-07 | 2016-07-20 | 合肥通用机械研究院 | Ultrahigh-pressure water jet milling water cutter head and milling process thereof |
| CN105690279A (en) * | 2016-04-07 | 2016-06-22 | 合肥通用机械研究院 | Water cutting nozzle with anti-water-return function |
| CN106493643A (en) * | 2016-12-09 | 2017-03-15 | 重庆平步青云汽车配件有限公司 | A kind of cutting tool for rearview mirror |
| US11872670B2 (en) | 2016-12-12 | 2024-01-16 | Omax Corporation | Recirculation of wet abrasive material in abrasive waterjet systems and related technology |
| CN106863147A (en) * | 2017-03-16 | 2017-06-20 | 浙江久立特材科技股份有限公司 | A kind of pneumatic pill transmitting device |
| CN112166008A (en) * | 2018-05-25 | 2021-01-01 | Flow国际公司 | Abrasive fluid jet cutting systems, components, and related methods for cutting sensitive materials |
| CN112166008B (en) * | 2018-05-25 | 2023-02-17 | Flow国际公司 | Abrasive fluid jet cutting systems, components, and related methods for cutting sensitive materials |
| 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 |
| CN110153904B (en) * | 2019-06-05 | 2023-08-18 | 河南理工大学 | Abrasive hydraulic punching system and method capable of continuously adding sand |
| CN110153904A (en) * | 2019-06-05 | 2019-08-23 | 河南理工大学 | The abrasive material waterpower punching system and method for sand can continuously be added |
| CN110919547B (en) * | 2019-12-31 | 2021-08-17 | 安徽傲宇数控科技有限公司 | Movable water jet cutting machine for pre-mixed abrasive |
| CN110919547A (en) * | 2019-12-31 | 2020-03-27 | 安徽傲宇数控科技有限公司 | Movable water jet cutting machine for pre-mixed abrasive |
| CN112059924A (en) * | 2020-09-18 | 2020-12-11 | 香港理工大学 | Fluid linear jet polishing device and application method thereof |
| CN112059924B (en) * | 2020-09-18 | 2022-01-11 | 香港理工大学 | Fluid linear jet polishing device and application method thereof |
| WO2023122121A1 (en) * | 2021-12-20 | 2023-06-29 | Omax Corporation | Backflow diversion devices for liquid jet cutting systems, and associated systems and methods |
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Application publication date: 20120229 |