WO1999022905A1 - Method for sanding surfaces on items - Google Patents

Method for sanding surfaces on items Download PDF

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Publication number
WO1999022905A1
WO1999022905A1 PCT/DK1998/000472 DK9800472W WO9922905A1 WO 1999022905 A1 WO1999022905 A1 WO 1999022905A1 DK 9800472 W DK9800472 W DK 9800472W WO 9922905 A1 WO9922905 A1 WO 9922905A1
Authority
WO
WIPO (PCT)
Prior art keywords
sanding
tools
item
rotated
tool
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.)
Ceased
Application number
PCT/DK1998/000472
Other languages
French (fr)
Inventor
Keld Otting HUNDEBØL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HH Patent AS
Original Assignee
HH Patent AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to BR9813918-5A priority Critical patent/BR9813918A/en
Priority to EP98951292A priority patent/EP1051283B1/en
Priority to AU97374/98A priority patent/AU737749B2/en
Priority to PCT/DK1998/000472 priority patent/WO1999022905A1/en
Priority to DK98951292T priority patent/DK1051283T3/en
Priority to NZ504044A priority patent/NZ504044A/en
Priority to CA002306131A priority patent/CA2306131C/en
Priority to AT98951292T priority patent/ATE253432T1/en
Priority to JP2000518814A priority patent/JP4215391B2/en
Application filed by HH Patent AS filed Critical HH Patent AS
Priority to US09/529,509 priority patent/US6234887B1/en
Priority to DE69819560T priority patent/DE69819560T2/en
Priority to KR1020007004722A priority patent/KR100552910B1/en
Priority to IL13587798A priority patent/IL135877A/en
Priority to PL98339917A priority patent/PL187120B1/en
Publication of WO1999022905A1 publication Critical patent/WO1999022905A1/en
Priority to NO20001723A priority patent/NO309851B1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/005—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents using brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/12—Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/28—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding wood

Definitions

  • the invention concerns a method for the sanding of surfaces on items by means of tools which consist of sanding segments which extend radially from a core in the formation of a cylindrical sanding tool, said tool being rotated around an axis of rotation which extends substantially parallel with the surface on the item, so that under the influence of centrifugal force the individual sanding segments exert a sanding pressure against the surface of the item, and where there are mounted several of such tools which are rotated in mutually opposite directions while at the same time being moved in relation to the item, or where the item is moved in relation to the sanding tools.
  • the sanding can be used with advantage as intermediate sanding between lacquer applications.
  • the method can be used for the cleaning of metal surfaces, where the sanding also serves to deburr the edges so that both an effective and uniform deburring is achieved.
  • the method can be used for items of plastic where, for example, the surface must be ground with the object of removing fraze and/or for subsequent surface treatment.
  • Machines are known for the execution of such a method.
  • a machine is known for the sanding of wooden items, and which is provided with six sanding rollers in a tool which rotates in such a manner that adjacent rollers are rotated in opposite directions during the turning of the tool over the item.
  • the individual rollers are rotated at the same speed, i.e. the rollers which rotate clockwise and the rollers which rotate counter-clockwise during the turning of the tool over the item all rotate at the same speed.
  • the sanding elements on the tools rotating in the manner like a roller will namely be fed a little slower over the item, and herewith have a relatively lower sanding effect than the corresponding sanding elements on the tools which rotate in the opposite direction, in that the relative sanding speed of these is higher and the sanding effect therefore greater than that of the tools which rotate like a roller.
  • the speed of rotation of the sanding tools can gradually be increased to compensate for the reduced sanding effect while avoiding the hitherto-known simultaneous increase in non-uniformity in the sanding, which occurs particularly due to the increased heating-up of the sanding tools which rotate in the opposite direction. This is especially important for the sanding of metal plate, where variations in temperature will give rise to tensions and deformations in the metal plate.
  • fig. 1 is a perspective view of a sanding tool during operation
  • fig. 2 shows a sanding tool rotating in the direction like a roller seen from the outside
  • fig. 3 shows a sanding tool rotating in the opposite direction, similarly seen from the outside, both during operation.
  • fig. 1 there is shown an example of a sanding tool which partly com- prises three cylindrical sanding tools 10 which are rotated counter-clockwise seen from the outside end, and as shown in fig. 2, and partly three sanding tools 1 which are rotated clockwise seen from the outside end, and as shown in fig. 3.
  • the sanding tools can consist of disks cut from sheet material and which are provided with incisions extending radially outwards for the formation of segmented sanding elements 2.
  • the individual sanding disks are provided with a hole around the centre axis so that they can be mounted on an axle 3 by being pushed on to said axle and tightened to form a sanding tool 1 , 10
  • the six rotation axles 3 are housed in a drive 11 mounted on a turning shaft 12 which can turn the drive 11 , and therewith the tools 1 , 10, around over the item 4 in a turning movement which extends parallel to the surface of the item.
  • the individual tools 1 , 10 are rotated on their axles 3 while at the same time they are turned over the item 4 by the shaft 12 in a turning movement 6.
  • the item In order for the whole of the item to be swept by the tools, it can be moved in relation to the tools, e.g. on a not-shown transport plane, or the tools can be moved over the item. Alternatively, this can be effected by a combination of movements, i.e. where both the item and the tools are moved in relation to one another.
  • the three tools 10 rotating in the rolling direction In order to achieve a perfect sanding result, according to the invention the three tools 10 rotating in the rolling direction must be rotated slightly faster than the three tools 1 rotating in the opposite direction. This is indicated in the drawing by means of arrows 8 and 9, the length of which indicates the difference in the speed of rotation.
  • An example of such a sanding tool can have an outer tool diameter of 300 mm, a speed of rotation of 1 ,000 rpm in the oppositely directed rotation, and a speed of rotation of 1 ,070 rpm in the rolling direction, i.e. a 7% in- crease in speed in relation to the speed in the opposite direction.
  • the securing effect on the conveyor can be reduced to the average load, whereby the consumption of power by the vacuum conveyor can be considerably reduced.
  • the uniform wear on the sanding elements will enable the sanding effect to be adjusted, which will result in a uniform result, and will not like the known methods give rise to an increased sanding effect for the tools rotating in the opposite direction with a subsequent non-uniform heating-up.
  • the method is described in connection with a sanding tool as shown in fig. 1 , but the same method can be executed with sanding machines of other constructions, merely providing that they comprise tools which are rotated in different directions. It is thus possible for the sanding result for all such sanding tools to be improved by changing the speed at which their tools are rotated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Crushing And Grinding (AREA)
  • Lubricants (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

With sanding or sanding machines with rotating sanding tools comprising sanding segments which are rotated in mutually opposite directions, according to the invention a more uniform sanding result and uniform wear on the tools is achieved with a method whereby the tools (10) which are rotated in the direction like a roller are rotated slightly faster than are the tools (1) which are rotated in the opposite direction. The necessary increase in speed has shown to be around 7 %, since the individual segments under the increased influence of the centrifugal force will thus obtain the same sanding pressure and herewith a uniform sanding effect for all of the sanding tools regardless of their direction of rotation in relation to the item.

Description

METHOD FOR SANDING SURFACES ON ITEMS
Prior art technique
The invention concerns a method for the sanding of surfaces on items by means of tools which consist of sanding segments which extend radially from a core in the formation of a cylindrical sanding tool, said tool being rotated around an axis of rotation which extends substantially parallel with the surface on the item, so that under the influence of centrifugal force the individual sanding segments exert a sanding pressure against the surface of the item, and where there are mounted several of such tools which are rotated in mutually opposite directions while at the same time being moved in relation to the item, or where the item is moved in relation to the sanding tools.
The sanding of surfaces by means of such tools is used especially for the processing of wooden items whose surfaces must be smooth.
Similarly, in connection with lacquered surfaces, the sanding can be used with advantage as intermediate sanding between lacquer applications.
Moreover, the method can be used for the cleaning of metal surfaces, where the sanding also serves to deburr the edges so that both an effective and uniform deburring is achieved.
Finally, the method can be used for items of plastic where, for example, the surface must be ground with the object of removing fraze and/or for subsequent surface treatment.
Machines are known for the execution of such a method. For example, from the description of DK Patent 156.703, a machine is known for the sanding of wooden items, and which is provided with six sanding rollers in a tool which rotates in such a manner that adjacent rollers are rotated in opposite directions during the turning of the tool over the item.
The individual rollers are rotated at the same speed, i.e. the rollers which rotate clockwise and the rollers which rotate counter-clockwise during the turning of the tool over the item all rotate at the same speed.
However, there hereby arises a small difference in the sanding effect of the individual sanding elements, the reason being that because of the differ- ences in the relative speeds, the individual sanding segments will have different contact pressure, sanding pressure, against the surface of the item.
The sanding elements on the tools rotating in the manner like a roller will namely be fed a little slower over the item, and herewith have a relatively lower sanding effect than the corresponding sanding elements on the tools which rotate in the opposite direction, in that the relative sanding speed of these is higher and the sanding effect therefore greater than that of the tools which rotate like a roller.
This difference in effect results not only in a non-uniform sanding of the surface, but also a non-uniform wear on the sanding elements.
From DK 9300243 Y6 there is known a pass-through sanding machine with sanding tools which have variable speeds of rotation. The object of this is to be able to mount sanding tools successively with different sanding aggressiveness, in that the speed of the individual tools can be set in accordance with their aggressiveness. The object of the invention
It is the object of the invention to remedy the disadvantages and drawbacks of the known methods, and this is achieved according to the invention when the sanding tool which moves in the rolling direction over the item is rotated more quickly than the tool which moves in the opposite direction over the item is rotated.
According to the invention, by simply rotating the tools which rotate in the direction like a roller faster than the tools which are rotated in the opposite direction, there can hereby be achieved a completely uniform sanding effect by all of the sanding segments regardless of their direction of rotation.
In a surprisingly simple manner, there is hereby achieved a completely perfect sanding result, completely without any variation in the sanding by the individual sanding tools, and with a completely uniform wear on the sanding elements as a result.
Moreover, a uniform physical loading of the item on the belt is achieved, in that there will be uniform side effects on the item from both the tools which rotate like a roller and those which rotate in the opposite direction.
To this can be added that in step with the wear, the speed of rotation of the sanding tools can gradually be increased to compensate for the reduced sanding effect while avoiding the hitherto-known simultaneous increase in non-uniformity in the sanding, which occurs particularly due to the increased heating-up of the sanding tools which rotate in the opposite direction. This is especially important for the sanding of metal plate, where variations in temperature will give rise to tensions and deformations in the metal plate. As disclosed in claim 2, by letting the tools which rotate in the direction like a roller rotate 13% faster than the tools rotating in the opposite direction, theoretically a completely uniform sanding pressure is achieved for both types of sanding tools, but since the centrifugal force plays a role at the relatively high speeds of rotation, an increase of only 7% in the speed of the tools rotating in the rolling direction has shown to provide the most uniform sanding result, and herewith a correspondingly uniform wear on the sanding elements.
Due to the progressiveness of the centrifugal force, the increase in rotation of 7% will correspond to the theoretical compensation of 13% for achieving a uniform sanding force or sanding pressure.
The drawing
The invention will be described in more detail in the following section with reference to the drawing, where
fig. 1 is a perspective view of a sanding tool during operation,
fig. 2 shows a sanding tool rotating in the direction like a roller seen from the outside, and
fig. 3 shows a sanding tool rotating in the opposite direction, similarly seen from the outside, both during operation.
Description of the method
In fig. 1 there is shown an example of a sanding tool which partly com- prises three cylindrical sanding tools 10 which are rotated counter-clockwise seen from the outside end, and as shown in fig. 2, and partly three sanding tools 1 which are rotated clockwise seen from the outside end, and as shown in fig. 3.
The sanding tools can consist of disks cut from sheet material and which are provided with incisions extending radially outwards for the formation of segmented sanding elements 2. The individual sanding disks are provided with a hole around the centre axis so that they can be mounted on an axle 3 by being pushed on to said axle and tightened to form a sanding tool 1 , 10
The six rotation axles 3 are housed in a drive 11 mounted on a turning shaft 12 which can turn the drive 11 , and therewith the tools 1 , 10, around over the item 4 in a turning movement which extends parallel to the surface of the item.
When the tools 1 , 10 are thus turned, as indicated by the arrow 6, the individual axles 3 with the tools 1 , 10 are rotated so that the three tools 10 are rotated in the direction like a roller, as indicated by the arrow 8, while the remaining tools 1 are rotated in the opposite direction, as indicated by the arrow 9.
During the sanding, the individual tools 1 , 10 are rotated on their axles 3 while at the same time they are turned over the item 4 by the shaft 12 in a turning movement 6.
In order for the whole of the item to be swept by the tools, it can be moved in relation to the tools, e.g. on a not-shown transport plane, or the tools can be moved over the item. Alternatively, this can be effected by a combination of movements, i.e. where both the item and the tools are moved in relation to one another. In order to achieve a perfect sanding result, according to the invention the three tools 10 rotating in the rolling direction must be rotated slightly faster than the three tools 1 rotating in the opposite direction. This is indicated in the drawing by means of arrows 8 and 9, the length of which indicates the difference in the speed of rotation.
An example of such a sanding tool can have an outer tool diameter of 300 mm, a speed of rotation of 1 ,000 rpm in the oppositely directed rotation, and a speed of rotation of 1 ,070 rpm in the rolling direction, i.e. a 7% in- crease in speed in relation to the speed in the opposite direction.
The theoretical difference between the relative speeds of the tools in the rolling direction and the opposite direction over the item is 13%, but because of the increased influence of the centrifugal force on the sanding segments during the increase in speed, it is thus only necessary to increase the speed of rotation by 7%. There is thus hereby achieved the same relative sanding speed and herewith sanding pressure over the item for all of the segments on the tools.
The difference is shown in figs. 2 and 3, and it is seen that the tool 10 rotating in the rolling direction rotates slightly faster than the tool 1 rotating in the opposite direction, whereby this resulting sanding effect becomes uniform due to the uniform sanding movements of the individual sanding elements.
There is hereby achieved a uniform sanding result, in that at no time will there be any variation on the surface 5 of the item 4.
Further to this improvement in the sanding result, a uniform wear on the sanding elements 2 will also be achieved, the reason being that these are now loaded to the same degree by the uniform sanding effect. The lifetime of the tools thus becomes the same for all of the tools, and the changing of the sanding disks on all of the tools can therefore be effected at the same time.
It is naturally an advantage that the sanding tools can be replaced at the same time, and not when only half of them are worn down.
Since the load on the items is more uniform, the securing effect on the conveyor can be reduced to the average load, whereby the consumption of power by the vacuum conveyor can be considerably reduced.
Moreover, the uniform wear on the sanding elements will enable the sanding effect to be adjusted, which will result in a uniform result, and will not like the known methods give rise to an increased sanding effect for the tools rotating in the opposite direction with a subsequent non-uniform heating-up.
The method is described in connection with a sanding tool as shown in fig. 1 , but the same method can be executed with sanding machines of other constructions, merely providing that they comprise tools which are rotated in different directions. It is thus possible for the sanding result for all such sanding tools to be improved by changing the speed at which their tools are rotated.

Claims

1. Method for the sanding of the surface on items by means of sanding tools which consist of sanding segments extending radially from a core in the formation of a cylindrical sanding tool, said sanding tool being rotated around an axis of rotation which extends substantially parallel with the surface on the item, so that under the influence of the centrifugal force the individual sanding segments exert a sanding pressure against the item surface, and where there are mounted several such sanding tools which are rotated in mutually opposite directions while at the same time being moved in relation to the item, or the item is moved in relation to the sanding tools, characterized in that the sanding tool (10), which is moved
(7) while rotating in the direction like a roller over the item (4), is rotated faster (8) than is the sanding tool (1) which is moved (7) while rotating in the opposite direction (9) over the item (4).
2. Method according to claim 1, characterized in that to compensate for the difference in sanding pressure, the speed of rotation
(8) of the tool (10) rotating in the direction like a roller is at a maximum 13% and preferably 7% higher than the speed of rotation (9) for the tool (1) rotating in the opposite direction.
PCT/DK1998/000472 1997-11-03 1998-10-30 Method for sanding surfaces on items Ceased WO1999022905A1 (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
JP2000518814A JP4215391B2 (en) 1997-11-03 1998-10-30 Thunder finishing method of processed product surface
AU97374/98A AU737749B2 (en) 1997-11-03 1998-10-30 Method for sanding surfaces on items
US09/529,509 US6234887B1 (en) 1997-11-03 1998-10-30 Method for sanding surfaces on items
DK98951292T DK1051283T3 (en) 1997-11-03 1998-10-30 Process for sanding surfaces on workpieces
NZ504044A NZ504044A (en) 1997-11-03 1998-10-30 A sanding tool which consists of sanding segments extending radially from a core in the formation of a cylindrical sanding tool
CA002306131A CA2306131C (en) 1997-11-03 1998-10-30 Method for sanding surfaces on items
AT98951292T ATE253432T1 (en) 1997-11-03 1998-10-30 METHOD FOR LUBRICATING ARTICLE SURFACES
BR9813918-5A BR9813918A (en) 1997-11-03 1998-10-30 Process for sanding the surface of objects using sanding tools
PCT/DK1998/000472 WO1999022905A1 (en) 1997-11-03 1998-10-30 Method for sanding surfaces on items
EP98951292A EP1051283B1 (en) 1997-11-03 1998-10-30 Method for sanding surfaces on items
DE69819560T DE69819560T2 (en) 1997-11-03 1998-10-30 METHOD FOR LUBRICATING ARTICLE SURFACES
KR1020007004722A KR100552910B1 (en) 1997-11-03 1998-10-30 Sander processing method of the workpiece surface
IL13587798A IL135877A (en) 1997-11-03 1998-10-30 Method for sanding surfaces on items
PL98339917A PL187120B1 (en) 1997-11-03 1998-10-30 Method of sandblasting surfaces of workpieces
NO20001723A NO309851B1 (en) 1997-11-03 2000-04-03 Procedure for grinding objects surfaces

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK124597 1997-11-03
DKPA199701245 1997-11-03
PCT/DK1998/000472 WO1999022905A1 (en) 1997-11-03 1998-10-30 Method for sanding surfaces on items

Publications (1)

Publication Number Publication Date
WO1999022905A1 true WO1999022905A1 (en) 1999-05-14

Family

ID=8102650

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1998/000472 Ceased WO1999022905A1 (en) 1997-11-03 1998-10-30 Method for sanding surfaces on items

Country Status (20)

Country Link
US (1) US6234887B1 (en)
EP (1) EP1051283B1 (en)
JP (1) JP4215391B2 (en)
KR (1) KR100552910B1 (en)
CN (1) CN1131126C (en)
AT (1) ATE253432T1 (en)
AU (1) AU737749B2 (en)
BR (1) BR9813918A (en)
CA (1) CA2306131C (en)
DE (1) DE69819560T2 (en)
DK (1) DK1051283T3 (en)
ES (1) ES2210831T3 (en)
IL (1) IL135877A (en)
MY (1) MY120555A (en)
NO (1) NO309851B1 (en)
NZ (1) NZ504044A (en)
PL (1) PL187120B1 (en)
PT (1) PT1051283E (en)
RU (1) RU2206440C2 (en)
WO (1) WO1999022905A1 (en)

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US9124447B2 (en) * 2002-07-26 2015-09-01 International Business Machines Corporation Interactive client computer communication
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ITMI20070939A1 (en) * 2007-05-09 2008-11-10 Adige Sala Spa DEVICE FOR DEBURRING THE ENDS OF TUBES
US8272925B2 (en) * 2009-01-07 2012-09-25 Sears Brands, L.L.C. Multi-drum sander and/or rasp
KR101188842B1 (en) * 2011-10-24 2012-10-08 한국항공우주산업 주식회사 Apparatus for deburring the working piece
US9266212B2 (en) 2013-02-05 2016-02-23 Silhouette Sander, LLC Sanding devices and methods
EP3285962A1 (en) * 2015-04-23 2018-02-28 HH Patent A/S Surface treatment tool
CN104985499A (en) * 2015-06-16 2015-10-21 安庆市华鑫重工股份有限公司 Movable edge grinding device
CN106271994A (en) * 2016-08-17 2017-01-04 吉林大华机械制造有限公司 A kind of bidirectional grinding machine
CN107030537B (en) * 2017-03-13 2018-11-27 浙江兆丰机电股份有限公司 The fine spiral lamination carding process of outer round surface
CN108669979A (en) * 2018-07-30 2018-10-19 衡东县万泉竹业有限公司 A kind of throwaway chopsticks molding necking tool with polishing function
CN110270394B (en) * 2019-07-24 2023-10-20 清远市清新区谷城矿业开发投资有限公司 Aggregate crushing device and method
DE102021105394A1 (en) 2021-03-05 2022-09-08 Karl Heesemann Maschinenfabrik Gmbh & Co. Kg Unit for deburring and rounding edges in a surface grinding machine
DE102021206237A1 (en) * 2021-06-17 2022-12-22 Boeck Gmbh Machining tool, machining device and machining method
KR102656838B1 (en) 2023-09-20 2024-04-12 (주)대성사 Apparatus for Automatic Sanding

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US5131292A (en) * 1990-05-22 1992-07-21 Hh Patent A/S Spindle drive
EP0471641A2 (en) * 1990-08-13 1992-02-19 Panwood Ltd An apparatus for surface finishing
WO1994027781A1 (en) * 1993-05-17 1994-12-08 Bjarne Kilde Run-through sander, particularly designed for wood sanding and intermediary lacquer sanding of panel covers etc., mainly plane workpieces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2832496A4 (en) * 2012-03-29 2015-12-09 Mitsubishi Heavy Ind Ltd POLISHING DEVICE AND METHOD FOR THIS DEVICE
US9821428B2 (en) 2012-03-29 2017-11-21 Mitsubishi Heavy Industries, Ltd. Polishing apparatus and method therefor

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ATE253432T1 (en) 2003-11-15
JP4215391B2 (en) 2009-01-28
IL135877A (en) 2004-02-19
JP2001521828A (en) 2001-11-13
US6234887B1 (en) 2001-05-22
MY120555A (en) 2005-11-30
AU9737498A (en) 1999-05-24
DE69819560T2 (en) 2004-05-13
DE69819560D1 (en) 2003-12-11
PL187120B1 (en) 2004-05-31
NO20001723D0 (en) 2000-04-03
PL339917A1 (en) 2001-01-15
EP1051283B1 (en) 2003-11-05
KR100552910B1 (en) 2006-02-22
AU737749B2 (en) 2001-08-30
CA2306131C (en) 2006-06-06
RU2206440C2 (en) 2003-06-20
CN1276750A (en) 2000-12-13
NZ504044A (en) 2001-10-26
BR9813918A (en) 2000-09-26
DK1051283T3 (en) 2003-12-08
EP1051283A1 (en) 2000-11-15
IL135877A0 (en) 2001-05-20
CA2306131A1 (en) 1999-05-14
NO309851B1 (en) 2001-04-09
PT1051283E (en) 2004-03-31
ES2210831T3 (en) 2004-07-01
NO20001723L (en) 2000-04-26
KR20010031666A (en) 2001-04-16
CN1131126C (en) 2003-12-17

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