WO2011037333A2 - 원통형 연마브러쉬 - Google Patents
원통형 연마브러쉬 Download PDFInfo
- Publication number
- WO2011037333A2 WO2011037333A2 PCT/KR2010/005884 KR2010005884W WO2011037333A2 WO 2011037333 A2 WO2011037333 A2 WO 2011037333A2 KR 2010005884 W KR2010005884 W KR 2010005884W WO 2011037333 A2 WO2011037333 A2 WO 2011037333A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylindrical
- support
- reinforcement
- brush
- outer periphery
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
- B24D13/10—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/02—Wheels in one piece
- B24D5/04—Wheels in one piece with reinforcing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
Definitions
- the present invention relates to a cylindrical polishing brush, and more particularly to a cylindrical polishing brush used for polishing a metal plate or a non-metal plate, in particular for polishing a printed circuit board (PCB).
- PCB printed circuit board
- the endless belt wears the tip even after a short time of use, the grinding force is reduced and uniform grinding is difficult.
- the nonwoven fabric roll can obtain a continuous finishing surface due to its structure, but it is not suitable when the grinding force is weak and a large grinding force is required, and it is irregular when the roll is made of a rigid body such as abrasive stone. Phosphorus polishing traces occur and it is difficult to cope with large waviness of a printed circuit board.
- Korean Patent No. 10-0444835 discloses a 'cylindrical grindstone' for polishing a printed circuit board.
- 1 is a longitudinal cross-sectional view, wherein 1 is a cylindrical member, 2 is an elastic body, 3 is a support, and 4 is a metal wire. 5 is a rubber sheet and 6 is a grindstone piece.
- the patent invention constitutes an elastic body with a polymer resin foam porous sponge on the outer circumference of the rotatable cylindrical member, installs a sheet-like support reinforced with metal wires on the outer circumference of the elastic body, and attaches a large number of small abrasive stones to the surface.
- the rubber sheet is wound around the outer periphery of the support.
- the density and elasticity of the sponge are not uniform due to the heterogeneity of the foam due to the characteristics of the porous sponge made by foaming the polymer resin. ) And rotation balance problems may occur.
- the polymer foam sponge has a problem that as the time passes, the pores shrink and turn into a hard sponge to lose elasticity, thereby failing to function properly.
- the patent invention is installed in the rubber sheet to prevent the growth of the outer diameter of the polishing brush by the centrifugal force at the high speed to install a support wound around a reinforcement line of fiber or metal at a certain angle with respect to the center line, as shown in Figure 2
- the degree of expansion of both ends and the other part is different from each other at high speed rotation, so that the degree of polishing of both ends and the other part is different when polishing a large area of flat plate.
- the method of reinforcing the support by continuously winding the reinforcement line on the rubber sheet at a predetermined angle with respect to the center line, since the reinforcement line is disconnected at both ends as shown in FIG. Done.
- the reinforcing line is wound into two layers or three layers at different angles, but does not sufficiently eliminate the difference in the degree of expansion of both ends and other portions during high-speed rotation.
- the present invention solves the structural problems of the sponge-like elastic body and the reinforcement support, and is particularly suitable for grinding or polishing of articles having a large surface, and can be polished uniformly in response to the large ups and downs of the workpiece.
- a cylindrical polishing brush that can also serve as a leveling roll of a flat plate.
- a support having a plurality of through holes is installed on the outer periphery of the rigid cylindrical tube inserted into the rotating shaft, the reinforcement is wound at right angles to the center line on the outer periphery of the support, the flexible sheet After the abrasive pieces are continuously arranged and fixed on the surface, the flexible sheet is wound around the outer periphery of the reinforcement.
- the present invention is suitable for grinding or polishing an article having a large surface due to the uniform deformation and support of the reinforcement and the support in the polishing brush even at a high speed rotation, and can be adhered uniformly in response to the large ups and downs of the workpiece. It has an effect which can be combined also as a leveling roll of a flat plate. In addition, the present invention has an effect that is particularly suitable for the removal and leveling of the unevenness on the surface of the printed circuit board with copper plating for wiring.
- 1 is a longitudinal sectional view of a conventional cylindrical polishing brush
- Figure 3 is a state diagram of the reinforcement wire wound at a certain angle on the cylindrical rubber sheet.
- Figure 4 is a longitudinal sectional view of the cylindrical abrasive brush of the present invention.
- FIG. 5 is a cross-sectional view of the cylindrical abrasive brush of the present invention.
- FIG. 7 is a shape of a through hole of another embodiment of the support of the present invention.
- a support having a through hole is installed on the outer periphery of the rigid cylindrical tube, the reinforcement is wound around the outer periphery of the support, the abrasive sheet is continuously arranged and fixed on the surface of the flexible sheet, and then the flexible sheet is formed on the outer periphery of the reinforcement. It is wound up to prepare a cylindrical abrasive brush.
- FIG. 4 is a longitudinal cross-sectional view of the cylindrical abrasive brush of the present invention
- Figure 5 is a cross-sectional view of the cylindrical abrasive brush of the present invention.
- the present invention is installed on the outer circumference of the rigid cylindrical tube 10 is inserted into the rotary shaft (not shown) with a plurality of through holes 21, the reinforcement 30 on the outer circumference of the support 20 ) Is wound at a right angle to the center line, and the abrasive stone pieces 50 are continuously arranged and fixed on the surface of the flexible sheet 40, and then the flexible sheet 40 is wound around the outer periphery of the reinforcement 30. It is done.
- the cylindrical tube 10 is made of a phenol tube, FRP (Fiber Reinforced Plastic) or FRTP (Fiber Reinforced Thermo Plastic) prepared by impregnating phenolic resin in paper or fiber having relatively light weight and rigidity.
- FRP Fiber Reinforced Plastic
- FRTP Fiber Reinforced Thermo Plastic
- FIG. 6 is a longitudinal cross-sectional view of the support 20, and FIG. 7 is a shape of the through hole 21 of another embodiment of the support 20.
- the support 20 is preferably made of polyurethane resin.
- the support 20 made of polyurethane resin has an elastic force of the sponge which allows the outermost abrasive stone to adhere well to the polishing surface and a bearing force that can withstand centrifugal force during rotation. Moreover, since a polyurethane resin is manufactured by extrusion or injection method, it has a uniform internal structure compared with the sponge manufactured by foaming method.
- the support 20 forms a plurality of through-holes 21 having various shapes, such as a circle, a rectangle, and a triangle. Due to this through hole 21, the weight is reduced, and effectively absorbs the shock generated when contacting with the non-uniform polishing surface.
- the through hole 21 is preferably drilled in the center line direction, but may be drilled in another direction.
- Sponges conventionally used as elastic bodies of cylindrical polishing brushes have a specific gravity of about 0.1-0.2 g / cm 3 and a specific gravity of the support made of the polyurethane resin of the present invention is 1.2 g / cm 3. If the through-hole 21 is 50% of the total area of the longitudinal section of the support 20, the specific gravity is 0.6g / cm 3, and if the 70% is drilled, the specific gravity is 0.36g / cm 3, and the specific gravity is 90%. 0.12 g / cm 3.
- the ratio of the through-holes 21 of the support body 20 increases the ratio of the through-holes 21 in the case of high strength and high hardness resins in consideration of the hardness, tensile strength, weight of the resin, and the like. In the case of resin, it is preferable to lower the ratio of the through hole 21.
- the size and shape of the through-holes 21 also affects the strength, elasticity, etc. of the support 20.
- the ratio of the through-holes 21 is preferably 50% -90%. Do.
- the ratio of the through-hole 21 of the support 20 is 50% or less, the elasticity is too small to absorb the shock during polishing, and the cylindrical abrasive brush cannot be uniformly adhered to the surface of the workpiece. There is polishing. On the other hand, in the case of 90% or more, it is difficult not only to manufacture the support 20 itself, but also to have sufficient bearing capacity due to the strength and hardness of the material.
- polyurethane resin Other materials may also be used as the material of the support 20, and there is no need to limit it to the polyurethane resin.
- Various resins such as silicone, polyethylene, polypropylene, PPS, PEEK, PS, Nylon, and polystyrene are possible, but polyurethane resin is most preferable considering the excellent elasticity and tensile strength and suitability in extrusion injection process. Do. Polyurethane resins are also suitable for Shore A hardness of 75 or more. Less than 75 is too low to support.
- the reinforcement 30 serves to prevent the support 20 from extending in the outer circumferential direction. Since the support 20 increases in the outer circumference by a few percent due to the centrifugal force during the polishing operation, it is necessary to suppress the increase in the support 20 in the outer circumferential direction in order to ensure precise polishing of several microns. .
- a method of winding one or several metal wires continuously at an angle to the center line a method of continuously winding the textile fabric at a predetermined angle from the center line, and a plurality of layers of fiber or metal wires to the center line A method of winding crosswise at an angle is used.
- the weft and warp yarns are woven at right angles to the outer periphery of the support 20 to form the reinforcement body 30 so that the weft or warp yarns are perpendicular to the center line.
- one of the weft and the warp yarn is parallel to the centerline and the other one is perpendicular to the centerline is wound two or more times, so that the reinforcement 30 is configured, so that even when the cylindrical polishing brush rotates at high speed, it is stable and uniform. One grinding is possible.
- UD unidirectional cloth
- a textile fabric to ensure stability of the length change in the axial direction while polishing the cylindrical polishing brush.
- Inorganic fibers include glass fibers, basalt fibers, and the like, which are advantageous in terms of high strength and low elongation, but have disadvantages in that they are high in weight (more than 2.5 g / cm 3) and have low flexibility.
- organic fibers general textile fabrics such as polypropylene, nylon, polyester, aramid, polyvinyl acetal, polyurethane fibers can be used.
- Organic fibers have advantages in terms of weight, flexibility, and the like, compared to inorganic fibers.
- a method of fixing the textile fabric in a circular manner is impregnated with a thermosetting resin in the fiber, then wound in a cylindrical shape and heat-cured by heat treatment at 80-200 °C, rubber adhesive, epoxy adhesive, And a method of curing at room temperature or thermosetting at a temperature of 100 ° C. or lower using a urethane adhesive or the like.
- the urethane sheet with fiber reinforced therein is excellent in tensile strength, weather resistance, chemical resistance, flex resistance, and the like, and is the same as the material of the support 20 made of a polyurethane material, which is suitable for reinforcing the support 20. .
- the abrasive stone used in the present invention is a vitrite, a resinoid, a metal bond, a silicate or the like depending on the type of the binder, and an alumina, silicon carbide, diamond, zirconia or the like depending on the type of the abrasive grain.
- these abrasives one is used depending on the abrasive, or two or more are used in combination.
- a plurality of abrasive stone pieces 50 are continuously arranged and fixed to the flexible flexible sheet 40, and then the reinforcement body 30 Wind around the outer circumference.
- the abrasive stone piece 50 is configured to have a horizontal, vertical and height of about 10-20mm so that the circular shape is made well when attached to the cylindrical support 20.
- the flexible flexible sheet 40 for attaching the abrasive stone pieces 50 selects an elastic material such as a rubber sheet or urethane sheet.
- the present invention is suitable for grinding or polishing an article having a large surface due to the uniform deformation and support of the reinforcement and the support in the polishing brush even at a high speed rotation, and can be adhered uniformly in response to the large ups and downs of the workpiece. It can be used as a leveling roll of a flat plate. In addition, the present invention is particularly suitable for the removal and leveling operation of the unevenness on the surface of the printed circuit board subjected to copper plating for wiring.
- the invention can be used for polishing metal or non-metal plates, in particular for printed circuit boards (PCBs).
- PCBs printed circuit boards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Claims (8)
- 원통형 연마브러쉬에 있어서,관통공(21)이 있는 지지체(20)를 강성의 원통관(10)의 외주에 설치하고,상기 지지체(20)의 외주에 보강체(30)를 감고,연성시트(40)의 표면에 연마석 조각(50)을 연속적으로 배열하여 고정시킨 후,상기 연성시트(40)를 상기 보강체(30)의 외주에 감아 붙여서 된 것을 특징으로 하는 원통형 연마브러쉬
- 제1항에 있어서,상기 지지체(20)의 외주에 상기 보강체(30)를 중심선에 대하여 직각으로 감은 것을 특징으로 하는 원통형 연마브러쉬
- 제1항 또는 제2항에 있어서,상기 지지체(20)가 폴리우레탄 수지로 된 것을 특징으로 하는 원통형 연마브러쉬
- 제1항 또는 제2항에 있어서,상기 관통공(21)의 비율이 상기 지지체(20) 종단면 전체 면적의 50%-90%인 것을 특징으로 하는 원통형 연마브러쉬
- 제1항 또는 제2항에 있어서,상기 보강체(30)가 섬유직물로 된 것을 특징으로 하는 원통형 연마브러쉬
- 제1항 또는 제2항에 있어서,상기 보강체(30)가 섬유를 포함하는 우레탄시트로 된 것을 특징으로 하는 원통형 연마브러쉬
- 제1항 또는 제2항에 있어서,상기 연마석 조각(50)의 가로, 세로 및 높이가 각각 10-20mm 인 것을 특징으로 하는 원통형 연마브러쉬
- 제1항 또는 제2항에 있어서,상기 연성시트(40)가 우레탄시트로 된 것을 특징으로 하는 원통형 연마브러쉬
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012516001A JP5285811B2 (ja) | 2009-09-22 | 2010-08-31 | 円筒形研磨ブラシ |
CN201080027751.2A CN102470514B (zh) | 2009-09-22 | 2010-08-31 | 圆筒形研磨刷 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2009-0089765 | 2009-09-22 | ||
KR1020090089765A KR100932382B1 (ko) | 2009-09-22 | 2009-09-22 | 원통형 연마브러쉬 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011037333A2 true WO2011037333A2 (ko) | 2011-03-31 |
WO2011037333A3 WO2011037333A3 (ko) | 2011-07-07 |
Family
ID=41684360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2010/005884 WO2011037333A2 (ko) | 2009-09-22 | 2010-08-31 | 원통형 연마브러쉬 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP5285811B2 (ko) |
KR (1) | KR100932382B1 (ko) |
CN (1) | CN102470514B (ko) |
WO (1) | WO2011037333A2 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10265826B2 (en) | 2013-06-07 | 2019-04-23 | 3M Innovative Properties Company | Method of forming a recess in a substrate |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103465182A (zh) * | 2013-09-03 | 2013-12-25 | 宇环数控机床股份有限公司 | 一种带分液装置的抛光轮 |
KR101600766B1 (ko) * | 2014-11-03 | 2016-03-07 | 주식회사 케이씨텍 | 브러쉬 세정 장치 및 이에 사용되는 세정 브러쉬 조립체 |
CN105881187A (zh) * | 2016-04-11 | 2016-08-24 | 钱淦 | 一种高效滚筒 |
CN108188949A (zh) * | 2018-01-23 | 2018-06-22 | 深圳市浩泰兴机电有限公司 | 磨刷及其制造方法 |
CN110091263B (zh) * | 2018-09-26 | 2024-03-22 | 东莞市鼎泰鑫电子有限公司 | 一种不织布磨刷及其制备方法 |
CN110405643B (zh) * | 2019-06-17 | 2020-09-29 | 深圳市浩泰兴机电有限公司 | 一种发泡陶瓷磨刷及其制备方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58143958A (ja) | 1982-02-15 | 1983-08-26 | Niro Inoue | 砥石 |
JPS6027413A (ja) * | 1983-07-21 | 1985-02-12 | Tooken:Kk | デスケラ− |
JPS62287976A (ja) | 1986-06-09 | 1987-12-14 | Dainippon Toryo Co Ltd | 研磨ツ−ル |
KR910005553Y1 (ko) * | 1989-07-28 | 1991-07-27 | 유호창 | 연마브러쉬용 쇄모 |
JPH0435875A (ja) * | 1990-05-31 | 1992-02-06 | Yachida:Kk | 回転砥石ロールと、それを使用するサンディングマシン |
DE19636474C2 (de) * | 1996-09-07 | 1997-09-04 | Rainer Dipl Phys Kleinschmidt | Verformbares Schleifwerkzeug |
CN2282961Y (zh) * | 1997-01-24 | 1998-06-03 | 郭平顺 | 棕刷轮 |
JPH1190824A (ja) * | 1997-09-16 | 1999-04-06 | Toyoda Mach Works Ltd | 砥石修正装置及び砥石修正方法 |
JP3445229B2 (ja) * | 2000-03-03 | 2003-09-08 | 株式会社ティ・ケー・エックス | 筒状砥石 |
JP3966815B2 (ja) * | 2000-03-03 | 2007-08-29 | 株式会社ティ・ケー・エックス | 研削装置 |
DK176784B1 (da) * | 2003-05-22 | 2009-08-24 | Amanda Patent & Licensing Sia | Börstemodul til en slibebörste |
JP2005246583A (ja) * | 2004-03-08 | 2005-09-15 | Ichiguchi:Kk | 研削材 |
JP2005329518A (ja) * | 2004-05-21 | 2005-12-02 | Kurenooton Kk | 研磨方法及び研磨用砥石 |
-
2009
- 2009-09-22 KR KR1020090089765A patent/KR100932382B1/ko active IP Right Grant
-
2010
- 2010-08-31 WO PCT/KR2010/005884 patent/WO2011037333A2/ko active Application Filing
- 2010-08-31 CN CN201080027751.2A patent/CN102470514B/zh not_active Expired - Fee Related
- 2010-08-31 JP JP2012516001A patent/JP5285811B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10265826B2 (en) | 2013-06-07 | 2019-04-23 | 3M Innovative Properties Company | Method of forming a recess in a substrate |
Also Published As
Publication number | Publication date |
---|---|
KR100932382B1 (ko) | 2009-12-16 |
WO2011037333A3 (ko) | 2011-07-07 |
CN102470514B (zh) | 2014-01-22 |
JP5285811B2 (ja) | 2013-09-11 |
CN102470514A (zh) | 2012-05-23 |
JP2012529997A (ja) | 2012-11-29 |
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