US20130045664A1 - Sandblasting apparatus - Google Patents
Sandblasting apparatus Download PDFInfo
- Publication number
- US20130045664A1 US20130045664A1 US13/441,289 US201213441289A US2013045664A1 US 20130045664 A1 US20130045664 A1 US 20130045664A1 US 201213441289 A US201213441289 A US 201213441289A US 2013045664 A1 US2013045664 A1 US 2013045664A1
- Authority
- US
- United States
- Prior art keywords
- tube
- mixing chamber
- sand
- sandblasting apparatus
- fluid
- 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.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/04—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other stationary
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
Definitions
- the present disclosure generally relates to a sandblasting apparatus.
- vacuum coating apparatus Internal parts of vacuum coating apparatus, such as a rotating bracket, become coated with films during process of vacuum coating.
- the increasing thickness of the films can influence the performance of the vacuum coating apparatus.
- the films may be cleaned off by a sandblasting apparatus.
- the sandblasted particles can be mixed with hyperbaric air or hyperbaric water to strike the films with a high speed.
- the sandblasting apparatus must be frequently adjusted to maintain a 45 degrees spraying angle relative to the film. As such, the efficiency of use of the sandblasting apparatus is low.
- FIG. 1 is an isometric view of a sandblasting apparatus according to an exemplary embodiment.
- FIG. 2 is a schematic cross-sectional view of the sandblasting apparatus shown in FIG. 1 .
- FIG. 3 is schematic cross-sectional view showing the sandblasting apparatus of FIG. 1 sandblasting an article with a flat surface.
- FIG. 4 is schematic cross-sectional view showing the sandblasting apparatus of FIG. 1 sandblasting an article with a curved surface.
- FIGS. 1 and 2 show a sandblasting apparatus 10 according to an exemplary embodiment.
- the sandblasting apparatus 10 may be used for removing coatings from coated articles by spraying sand particles.
- the sandblasting apparatus 10 includes a sand tube 20 , a fluid tube 30 , a mixing chamber 40 , a major output tube 50 and an auxiliary output tube 60 .
- the fluid tube 30 is integrally formed with the sand tube 20 .
- the major output tube 50 is integrally formed with the auxiliary output tube 60 .
- the sand tube 20 is substantially tubular and straight.
- the sand tube 20 defines a sand inlet 22 at one end.
- the sand inlet 22 may be used for inputting sand particles.
- Another end of the sand tube 20 connects and communicates with the mixing chamber 40 .
- the fluid tube 30 is substantially tubular and straight.
- the fluid tube 30 defines a fluid inlet 32 at one end thereof.
- a gaseous or liquid fluid substance, such as air or water may be input into the fluid inlet 32 .
- Another end of the fluid tube 30 connects and communicates with the mixing chamber 40 .
- the fluid tube 30 may have a larger inside diameter than the sand tube 20 .
- An included angle ⁇ is defined between the fluid tube 30 and the sand tube 20 .
- the included angle ⁇ may be an acute angle. An acute angle ensures that the sand particles and the fluid substance mix rapidly, that the momentum of each is not reduced, and thus the forcefulness of the strike on a surface of an article is as high as possible. In this embodiment, the included angle ⁇ is about 45 degrees.
- the mixing chamber 40 provides a room for the mixing of the sand particles and the fluid substance.
- the mixing chamber 40 connects and communicates with the sand tube 20 , the fluid tube 30 , the major output tube 50 , and the auxiliary output tube 60 .
- the major output tube 50 is substantially tubular and straight.
- the major output tube 50 defines a major outlet 52 at one end thereof. Another end of the major output tube 50 connects and communicates with the mixing chamber 40 .
- the major output tube 50 may be substantially coaxial with the mixing chamber 40 and the fluid tube 30 . The mixed sand particles and fluid substance may be sprayed out from the major outlet 52 .
- the auxiliary output tube 60 is substantially tubular.
- the auxiliary output tube 60 includes a first part 63 and a second part 65 .
- the first part 63 connects and communicates with the mixing chamber 40 . Another end of the first part 63 connects and communicates with the second part 65 .
- the first part 63 and the major output tube 50 cooperatively define an included angle ⁇ .
- the included angle ⁇ may be an acute angle.
- the included angle ⁇ is no larger than 45 degrees, ensuring a high speed of the sand particles.
- the second part 65 extends towards the major output tube 50 , offset from the axial direction of the first part 63 .
- One end of the second part 65 connects with the first part 63 .
- Another end of the second part 65 defines an auxiliary outlet 62 .
- Axis Q 0 of second part 65 may intersect axis P 0 of the major output tube 50 at one point. In this way, sand particles spraying out of the auxiliary outlet 62 and sand particles spraying out of the major outlet 52 can be focused and strike at the same area of an article to be processed.
- An included angle ⁇ is formed between axis Q 0 of second part 65 and axis P 0 of the major output tube 50 .
- the included angle ⁇ may be an acute angle.
- the included angle ⁇ is about 30 degrees to about 60 degrees. In this embodiment, the included angle ⁇ is 45 degrees.
- the vertical distance between the auxiliary outlet 62 and the mixing chamber 40 may be substantially equal to that between the major outlet 52 and the mixing chamber 40 .
- FIG. 3 shows the sandblasting apparatus 10 being used to remove a coating 74 formed on a flat surface 72 of an article 70 .
- the major output tube 50 is perpendicular to the flat surface 72 .
- the gaseous or liquid fluid substance at a high pressure is fed from the fluid inlet 32 into the mixing chamber 40 via the fluid tube 30 .
- Sand particles are fed from the sand inlet 22 into the mixing chamber 40 via the sand tube 20 .
- the sand particles and the fluid substance are mixed together in the mixing chamber 40 , obtaining a mixture.
- Two beams or streams of the mixture from the mixing chamber 40 are sprayed out at a high speed from the major outlet 52 and from the auxiliary outlet 62 through the major output tube 50 and the auxiliary output tube 60 respectively.
- the two beams of the mixture strike the same area of the coating 74 at different angles.
- one beam of mixture from the major outlet 52 strikes the flat surface 72 perpendicularly, at point 76 .
- Another beam of mixture from the auxiliary outlet 62 strikes the point 76 with a first force, from a different angle.
- the first force disintegrates or disperses into a vertical downward component F 0 and a tangentially-orientated component F 2 .
- Component F 2 has a relatively greater effect on removing the coating 74 , thereby greatly enhancing the rate of removal of the coating 74 .
- FIG. 4 shows the sandblasting apparatus 10 being used to remove a coating 84 formed on a curved surface 82 of an article 80 .
- the curved surface 82 is concave.
- the sandblasting process may be performed as follows.
- Axis Q 0 of second part 65 intersects axis P 0 of the major output tube 50 at a point 86 on the curved surface 82 .
- Angular bisector L 1 of the included angle ⁇ is perpendicular to a tangent L at the point 86 . That is, an included angle ⁇ 1 between the L 1 and L is a right angle.
- the beam of mixture from the major outlet 52 strikes the point 86 with a second force.
- the second force disintegrates or disperses into a vertical downward component F 0 and a tangentially-orientated component F 2 .
- the beam of mixture from the auxiliary outlet 62 strikes the point 86 with a third force.
- the third force disintegrates or disperses into a vertical downward component F 0 and a tangentially-orientated component F 1 .
- the components F 2 and F 1 have a relatively greater effect on removing the coating 84 than the vertical downward components, thereby greatly enhancing the rate of removal of the coating 84 .
- the second part 65 of the auxiliary output tube 60 and the major output tube 50 cooperatively define an acute angle.
- the striking force of the beam of mixture spraying from the auxiliary output tube 60 disintegrates into a vertical downward component and a tangentially-orientated component.
- the tangentially-orientated component has the greatest effect on removing coatings from articles. So, frequent adjustment of the sandblasting apparatus to maintain an acute angle between the spraying direction and the surface being sandblasted is avoided, and the degree of skill necessary to use the sandblasting apparatus efficiently is reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
- 1. Technical Field
- The present disclosure generally relates to a sandblasting apparatus.
- 2. Description of Related Art
- Internal parts of vacuum coating apparatus, such as a rotating bracket, become coated with films during process of vacuum coating. The increasing thickness of the films can influence the performance of the vacuum coating apparatus. The films may be cleaned off by a sandblasting apparatus. The sandblasted particles can be mixed with hyperbaric air or hyperbaric water to strike the films with a high speed. However, to obtain a high cleaning efficiency, the sandblasting apparatus must be frequently adjusted to maintain a 45 degrees spraying angle relative to the film. As such, the efficiency of use of the sandblasting apparatus is low.
- Therefore, there is room for improvement within the art.
- Many aspects of the disclosure can be better understood with reference to the figures. The components in the figures are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the views.
-
FIG. 1 is an isometric view of a sandblasting apparatus according to an exemplary embodiment. -
FIG. 2 is a schematic cross-sectional view of the sandblasting apparatus shown inFIG. 1 . -
FIG. 3 is schematic cross-sectional view showing the sandblasting apparatus ofFIG. 1 sandblasting an article with a flat surface. -
FIG. 4 is schematic cross-sectional view showing the sandblasting apparatus ofFIG. 1 sandblasting an article with a curved surface. -
FIGS. 1 and 2 show asandblasting apparatus 10 according to an exemplary embodiment. Thesandblasting apparatus 10 may be used for removing coatings from coated articles by spraying sand particles. Thesandblasting apparatus 10 includes asand tube 20, afluid tube 30, amixing chamber 40, amajor output tube 50 and anauxiliary output tube 60. In this embodiment, thefluid tube 30 is integrally formed with thesand tube 20. Themajor output tube 50 is integrally formed with theauxiliary output tube 60. - The
sand tube 20 is substantially tubular and straight. Thesand tube 20 defines asand inlet 22 at one end. Thesand inlet 22 may be used for inputting sand particles. Another end of thesand tube 20 connects and communicates with themixing chamber 40. - The
fluid tube 30 is substantially tubular and straight. Thefluid tube 30 defines afluid inlet 32 at one end thereof. A gaseous or liquid fluid substance, such as air or water may be input into thefluid inlet 32. Another end of thefluid tube 30 connects and communicates with themixing chamber 40. Thefluid tube 30 may have a larger inside diameter than thesand tube 20. An included angle β is defined between thefluid tube 30 and thesand tube 20. The included angle β may be an acute angle. An acute angle ensures that the sand particles and the fluid substance mix rapidly, that the momentum of each is not reduced, and thus the forcefulness of the strike on a surface of an article is as high as possible. In this embodiment, the included angle β is about 45 degrees. - The
mixing chamber 40 provides a room for the mixing of the sand particles and the fluid substance. Themixing chamber 40 connects and communicates with thesand tube 20, thefluid tube 30, themajor output tube 50, and theauxiliary output tube 60. - The
major output tube 50 is substantially tubular and straight. Themajor output tube 50 defines amajor outlet 52 at one end thereof. Another end of themajor output tube 50 connects and communicates with themixing chamber 40. Themajor output tube 50 may be substantially coaxial with themixing chamber 40 and thefluid tube 30. The mixed sand particles and fluid substance may be sprayed out from themajor outlet 52. - The
auxiliary output tube 60 is substantially tubular. Theauxiliary output tube 60 includes afirst part 63 and asecond part 65. - One end of the
first part 63 connects and communicates with themixing chamber 40. Another end of thefirst part 63 connects and communicates with thesecond part 65. Thefirst part 63 and themajor output tube 50 cooperatively define an included angle γ. The included angle γ may be an acute angle. Preferably, the included angle γ is no larger than 45 degrees, ensuring a high speed of the sand particles. - The
second part 65 extends towards themajor output tube 50, offset from the axial direction of thefirst part 63. One end of thesecond part 65 connects with thefirst part 63. Another end of thesecond part 65 defines anauxiliary outlet 62. Axis Q0 ofsecond part 65 may intersect axis P0 of themajor output tube 50 at one point. In this way, sand particles spraying out of theauxiliary outlet 62 and sand particles spraying out of themajor outlet 52 can be focused and strike at the same area of an article to be processed. An included angle θ is formed between axis Q0 ofsecond part 65 and axis P0 of themajor output tube 50. The included angle θ may be an acute angle. Preferably, the included angle θ is about 30 degrees to about 60 degrees. In this embodiment, the included angle θ is 45 degrees. - The vertical distance between the
auxiliary outlet 62 and themixing chamber 40 may be substantially equal to that between themajor outlet 52 and themixing chamber 40. -
FIG. 3 shows thesandblasting apparatus 10 being used to remove acoating 74 formed on aflat surface 72 of anarticle 70. - During the sandblasting process, the
major output tube 50 is perpendicular to theflat surface 72. The gaseous or liquid fluid substance at a high pressure is fed from thefluid inlet 32 into the mixingchamber 40 via thefluid tube 30. Sand particles are fed from thesand inlet 22 into the mixingchamber 40 via thesand tube 20. The sand particles and the fluid substance are mixed together in the mixingchamber 40, obtaining a mixture. Two beams or streams of the mixture from the mixingchamber 40 are sprayed out at a high speed from themajor outlet 52 and from theauxiliary outlet 62 through themajor output tube 50 and theauxiliary output tube 60 respectively. The two beams of the mixture strike the same area of thecoating 74 at different angles. In detail, one beam of mixture from themajor outlet 52 strikes theflat surface 72 perpendicularly, atpoint 76. Another beam of mixture from theauxiliary outlet 62 strikes thepoint 76 with a first force, from a different angle. The first force disintegrates or disperses into a vertical downward component F0 and a tangentially-orientated component F2. Component F2 has a relatively greater effect on removing thecoating 74, thereby greatly enhancing the rate of removal of thecoating 74. -
FIG. 4 shows the sandblastingapparatus 10 being used to remove acoating 84 formed on acurved surface 82 of anarticle 80. In this embodiment, thecurved surface 82 is concave. The sandblasting process may be performed as follows. - Axis Q0 of
second part 65 intersects axis P0 of themajor output tube 50 at apoint 86 on thecurved surface 82. Angular bisector L1 of the included angle θ is perpendicular to a tangent L at thepoint 86. That is, an included angle θ1 between the L1 and L is a right angle. As such, the beam of mixture from themajor outlet 52 strikes thepoint 86 with a second force. The second force disintegrates or disperses into a vertical downward component F0 and a tangentially-orientated component F2. The beam of mixture from theauxiliary outlet 62 strikes thepoint 86 with a third force. The third force disintegrates or disperses into a vertical downward component F0 and a tangentially-orientated component F1. The components F2 and F1 have a relatively greater effect on removing thecoating 84 than the vertical downward components, thereby greatly enhancing the rate of removal of thecoating 84. - The
second part 65 of theauxiliary output tube 60 and themajor output tube 50 cooperatively define an acute angle. The striking force of the beam of mixture spraying from theauxiliary output tube 60 disintegrates into a vertical downward component and a tangentially-orientated component. The tangentially-orientated component has the greatest effect on removing coatings from articles. So, frequent adjustment of the sandblasting apparatus to maintain an acute angle between the spraying direction and the surface being sandblasted is avoided, and the degree of skill necessary to use the sandblasting apparatus efficiently is reduced. - It is believed that the exemplary embodiment and its advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the disclosure or sacrificing all of its advantages, the examples hereinbefore described merely being preferred or exemplary embodiment of the disclosure.
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011102322951A CN102935619A (en) | 2011-08-15 | 2011-08-15 | Sand blasting device |
CN201110232295.1 | 2011-08-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130045664A1 true US20130045664A1 (en) | 2013-02-21 |
Family
ID=47694558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/441,289 Abandoned US20130045664A1 (en) | 2011-08-15 | 2012-04-06 | Sandblasting apparatus |
Country Status (2)
Country | Link |
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US (1) | US20130045664A1 (en) |
CN (1) | CN102935619A (en) |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191001510A (en) * | 1909-02-16 | 1911-01-20 | Louis Gabillard | Improvements in or relating to Sand Spraying or Blasting Apparatus. |
US2290979A (en) * | 1941-06-14 | 1942-07-28 | Hydro Blast Corp | Sandblasting device |
CH489332A (en) * | 1968-04-17 | 1970-04-30 | Henne Edmond | Method for sandblasting objects by impact of a pulverulent abrasive, and installation for the implementation of this method |
US3972150A (en) * | 1974-06-05 | 1976-08-03 | Bernard Eaton Hart | Guns for forming jets of particulate material |
US3994097A (en) * | 1975-04-07 | 1976-11-30 | Lamb Ralph W | Abrasive or sand blast apparatus and method |
US4815241A (en) * | 1986-11-24 | 1989-03-28 | Whitemetal Inc. | Wet jet blast nozzle |
US5035090A (en) * | 1984-08-14 | 1991-07-30 | Szuecs Johan | Apparatus and method for cleaning stone and metal surfaces |
US5054249A (en) * | 1988-11-23 | 1991-10-08 | Rankin George J | Method and apparatus for liquid-abrasive blast cleaning |
DE9415720U1 (en) * | 1994-09-29 | 1994-12-15 | Mak System Gmbh, 24159 Kiel | Device for surface treatment of welds |
US5413270A (en) * | 1993-01-06 | 1995-05-09 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" | Method for removing a portion of a coating by liquid jets |
US5713519A (en) * | 1995-07-21 | 1998-02-03 | Minnesota Mining And Manufacturing Company | Fluid spraying system |
US5992404A (en) * | 1997-03-07 | 1999-11-30 | Jenoptik Aktiengesellschaft | Process and device for clearing out joints in masonry |
US6604986B1 (en) * | 1997-11-20 | 2003-08-12 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Process and device for working a workpiece |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63144962A (en) * | 1986-12-08 | 1988-06-17 | Mitsui Eng & Shipbuild Co Ltd | Two throw nozzle for sand blast |
CN201815970U (en) * | 2010-07-20 | 2011-05-04 | 吴培城 | Spray gun of sand-blasting machine |
CN201799936U (en) * | 2010-09-13 | 2011-04-20 | 杭州尖山工具有限公司 | Sand-blasting gun |
-
2011
- 2011-08-15 CN CN2011102322951A patent/CN102935619A/en active Pending
-
2012
- 2012-04-06 US US13/441,289 patent/US20130045664A1/en not_active Abandoned
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191001510A (en) * | 1909-02-16 | 1911-01-20 | Louis Gabillard | Improvements in or relating to Sand Spraying or Blasting Apparatus. |
US2290979A (en) * | 1941-06-14 | 1942-07-28 | Hydro Blast Corp | Sandblasting device |
CH489332A (en) * | 1968-04-17 | 1970-04-30 | Henne Edmond | Method for sandblasting objects by impact of a pulverulent abrasive, and installation for the implementation of this method |
US3972150A (en) * | 1974-06-05 | 1976-08-03 | Bernard Eaton Hart | Guns for forming jets of particulate material |
US3994097A (en) * | 1975-04-07 | 1976-11-30 | Lamb Ralph W | Abrasive or sand blast apparatus and method |
US5035090A (en) * | 1984-08-14 | 1991-07-30 | Szuecs Johan | Apparatus and method for cleaning stone and metal surfaces |
US4815241A (en) * | 1986-11-24 | 1989-03-28 | Whitemetal Inc. | Wet jet blast nozzle |
US5054249A (en) * | 1988-11-23 | 1991-10-08 | Rankin George J | Method and apparatus for liquid-abrasive blast cleaning |
US5413270A (en) * | 1993-01-06 | 1995-05-09 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" | Method for removing a portion of a coating by liquid jets |
DE9415720U1 (en) * | 1994-09-29 | 1994-12-15 | Mak System Gmbh, 24159 Kiel | Device for surface treatment of welds |
US5713519A (en) * | 1995-07-21 | 1998-02-03 | Minnesota Mining And Manufacturing Company | Fluid spraying system |
US5992404A (en) * | 1997-03-07 | 1999-11-30 | Jenoptik Aktiengesellschaft | Process and device for clearing out joints in masonry |
US6604986B1 (en) * | 1997-11-20 | 2003-08-12 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Process and device for working a workpiece |
Also Published As
Publication number | Publication date |
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CN102935619A (en) | 2013-02-20 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHANG, HSIN-PEI;HUANG, TENG-TSUNG;PENG, LI-QUAN;REEL/FRAME:028006/0131 Effective date: 20120328 Owner name: HON HAI PRECISION INDUSTRY CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHANG, HSIN-PEI;HUANG, TENG-TSUNG;PENG, LI-QUAN;REEL/FRAME:028006/0131 Effective date: 20120328 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |