CN100542746C - The grinding dish that is used for power-actuated portable grinding machine - Google Patents
The grinding dish that is used for power-actuated portable grinding machine Download PDFInfo
- Publication number
- CN100542746C CN100542746C CNB2004100490079A CN200410049007A CN100542746C CN 100542746 C CN100542746 C CN 100542746C CN B2004100490079 A CNB2004100490079 A CN B2004100490079A CN 200410049007 A CN200410049007 A CN 200410049007A CN 100542746 C CN100542746 C CN 100542746C
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- China
- Prior art keywords
- grinding
- grinding area
- area
- dish
- abrasive sheet
- 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.)
- Expired - Fee Related
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 152
- 238000003801 milling Methods 0.000 description 10
- 239000000428 dust Substances 0.000 description 7
- 239000004744 fabric Substances 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
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
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
-
- 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
- B24D9/08—Circular back-plates for carrying flexible material
Abstract
The present invention relates to a kind of grinding dish (4) that is used for power-actuated portable grinding machine, it has the bonding pad (3) between first grinding area (1), second grinding area (2) and first grinding area (1) and second grinding area (2); For service life of improving abrasive sheet significantly and both reached good angle and edge grinding simultaneously and also reach good face grinding, first grinding area (1) and second grinding area (2) have identical configuration and toward each other a symmetry axis (S) that extends through described bonding pad (3) be provided with symmetrically.
Description
Technical field
The present invention relates to a kind of grinding dish that is used for power-actuated portable grinding machine.
Background technology
The portable milling drum of the rectangle grinding dish with 1/2,1/3 or 1/4 abrasive sheet is disclosed.Disclosing its specification in addition is this rectangle grinding dish of 80 x 133mm.Though this portable milling drum is grinding face well, only can be applicable to the grinding at an angle or edge limitedly.
For grinding angle or edge, so-called triangle (Delta) milling drum is disclosed, they have one and have equilateral, three angle basal planes and the outer peripheral grinding dish of bandy arc.
Can realize the grinding of good angle and also can realize the grinding of good edge by the angular zone of such formation by bandy arc outward flange.But this triangle milling drum is not suitable for the face grinding because it only have little grinding face and when the bigger face of grinding abrasive sheet dope abrasive dust soon.
Also reach good face grinding in order both to reach good angle and edge grinding, disclose the portable milling drum of grinding dish with flatiron shape.Place, pinnacle at flatiron can realize good angle grinding, can realize good edge grinding in side edge region, and because big grinding face also can be realized satisfied face grinding, and abrasive sheet can not dope abrasive dust soon.But the problem of the portable milling drum of this flatiron shape is: when the abrasive sheet concentrated wear-at first appear at anterior angle or edge usually, will can not re-use fully and must be thrown away thus.User to portable milling drum had both brought the expensive high ecological burden that also brings thus.
Summary of the invention
According to the present invention, a kind of grinding dish that is used for power-actuated portable grinding machine has been proposed, has first grinding area, a bonding pad between second grinding area and first grinding area and second grinding area, wherein: these grinding area have identical configuration and are provided with symmetrically in a symmetry axis that extends through described bonding pad toward each other, these grinding area respectively have one equilateral, leg-of-mutton basal plane, this basal plane has the edge of outside arc-shaped bend, the relative longitudinal axis perpendicular to described symmetry axis of these grinding area is provided with symmetrically, these grinding area constitute the end of this grinding dish with the angle on the described longitudinal axis of being positioned at of they, and abrasive sheet removably is arranged on these grinding area respectively.
By contrast, the grinding dish that is used for power-actuated portable grinding machine of the present invention has its advantage, promptly can use two identical abrasive sheets for the grinding area of two identical configuration.When wearing and tearing appear in the abrasive sheet on being contained in front tip, two abrasive sheets are exchanged between first grinding area and second grinding area.Compare the service life that abrasive sheet can reach two double-lengths with known flatiron shape grinding dish thus with same size grinding area.
The grinding dish preferably constitutes in this wise, so that no matter is that first grinding area or second grinding area respectively have equilateral, a leg-of-mutton basal plane, and this basal plane has the edge of outside arc-shaped bend.Can reach longer service life for abrasive sheet thus, because when occurring abrasive sheet when wearing and tearing on the tip of grinding dish, first abrasive sheet that is contained on first grinding area can twice rotation 120 °.Because second abrasive sheet that is contained on second grinding area only is used for grinding face, wearing and tearing appear on it hardly.Occurred wearing and tearing even therefore work as first abrasive sheet on its three angles, first abrasive sheet still can exchange with second abrasive sheet.Second abrasive sheet can be as first abrasive sheet then, can twice rotation when wearing and tearing appear in anterior angle 120 °.
According to a favourable form of implementation, the 3rd edge of first grinding area is positioned at the opposite at the 3rd edge of second grinding area.
According to a favourable form of implementation, grinding dish its longitudinal axis relatively constitutes symmetrically.
The grinding dish preferably constitutes in this wise, no matter is that first grinding area or second grinding area respectively have a plurality of SSs promptly, and they are disposed in especially respectively on the circumference.Can avoid adhering to abrasive dust thus, promptly abrasive dust neither can be attached on can second abrasive sheet attached to second grinding area on first abrasive sheet of first grinding area yet.And make again significantly improve service life thus.
The grinding dish preferably constitutes in this wise, so that be configured with a plurality of suction channels in the bonding pad.This causes the further raising in service life again, because more abrasive dust especially is sucked from the zone of grinding dish, and therefore makes two abrasive sheets adhere to abrasive dust than the situation of no suction channel slowlyer.
According to a favourable configuration, these suction channels are disposed in the fringe region of grinding dish.
Description of drawings
To describe embodiments of the invention in detail by accompanying drawing in the following description.
Accompanying drawing is:
Fig. 1: the summary vertical view of grinding dish of the present invention,
Fig. 2: along a vertical cross-section diagram of the grinding dish that has the abrasive sheet of loading onto of Fig. 1 center line A-A, and
Fig. 3: the vertical view of an abrasive sheet.
The specific embodiment
Fig. 1 represents the summary vertical view of a grinding dish 4 of the present invention.Shown in the surface on by two abrasive sheets 8 (seeing Fig. 2 and 3) are housed, at this moment this grinding dish can be driven on an electric motor driven portable grinding machine (not shown).Grinding dish 4 is connected with electric motor driven portable grinding machine (not shown) by unshowned jockey.But is known because this coupling part is not theme of the present invention and this for the professional, so it is both not shownly gone out and in following also no longer further discussion.
Grinding dish 4 has three zones of fine differentiation each other.Constitute first grinding area 1 above, it is connected with second grinding area 2 on grinding dish 4 lower ends by a bonding pad 3.Two grinding area 1,2 constitute in the same manner and are symmetrical in a longitudinal axis L respectively settles, and only first grinding area 1 is elaborated below thus.
First grinding area 1 has equilateral, a leg-of-mutton basal plane.This basal plane is the boundary with the edge 11,12,13 of three bandy arcs.Three angles 14,15,16 that folded by three edges 11,12,13 respectively have about 90 ° angle.Be readily appreciated that when having other radius of curvature at these three edges 11,12,13, these three angles 14,15,16 can obtain other angle.
First grinding area 1 is longitudinal axis L setting relatively in this wise, so that its first jiao 14 upwards.In mounted state, this first jiao 14 pinnacle that forms portable grinding machine.Be configured with six SSs 17 in first grinding area 1 altogether, they are positioned at around on one of the mid point of this basal plane common circumference.Except this configuration with six SSs 17, the SS 17 of other arbitrary number also can be set, their also available any other geometric figures are arranged in first grinding area 1.
Second grinding area 2 identical with the configuration of first grinding area 1 is set to respect to a symmetry axis S symmetry.This symmetry axis S extends through bonding pad 3 and perpendicular with longitudinal axis L.Therefore the 3rd edge 13 of first grinding area 1 and the 3rd edge 23 of second grinding area 2 are oppositely arranged mutually.First of second grinding area 2 jiao of 24 rear end that under its mounted state, forms grinding dish 4 thus.
Therefore first grinding area 1 is used for the grinding in corner in first jiao 14 scope, and is used for the grinding at edge in the scope at first edge 11 or second edge 12.On the contrary, second grinding area 2 is used for the grinding of face.Be provided with four suction channels 31 in bonding pad 3 altogether, they both had been symmetrical in longitudinal axis L and also had been symmetrical in the setting of symmetry axis S ground.These four suction channels 31 are set in the fringe region of grinding dish 4.Be readily appreciated that except the shape that these suction channels specifically illustrated, these suction channels 31 not only can have all other possible configurations on the geometry but also on number.
No matter be that suction channel 31 or SS 17,27 are used to make when grinding is worked the abrasive dust under abrasive sheet 8 (seeing Fig. 2 and the 3) mill unlikely attached to abrasive sheet 8, but be sucked out.
Fig. 2 represents the vertical cross-section diagram of second grinding area 2.Here can be clear that the hierarchy of whole grinding dish 4.Be provided with a loading plate 5 as ground floor in the machine side, it is by a kind of anti-twist material, constitute as polyamide.On this loading plate, be useful on centering and the locking system (not shown) that is connected with hand-guided grinding by spray to cast.On this anti-twist loading plate 5, connecting a soft intermediate plate 6 that makes by polyurethane (Polyurethan) or expanded rubber.This soft intermediate plate is foamed or is bonded on the loading plate 5.Below soft intermediate plate 6, one sticking takes fabric 7 and fixedlys connected with this soft intermediate plate 6.Sticking taking an abrasive sheet 8 has been installed on the fabric 7.This abrasive sheet 8 can sticking taken fabric 7 and can take off from grinding dish 4 at an easy rate by simply pulling to draw.
As shown in Figure 3, the structure with two grinding area 1 and 2 is identical in shape at it for abrasive sheet 8.Therefore below abrasive sheet 8 is no longer described in detail, and can be with reference to the description to first grinding area 1.But as seeing well from Fig. 2, abrasive sheet 8 exceeds the about 1-2mm of outline of corresponding grinding area 1,2.
Therefore the edge 81,82,83 of abrasive sheet 8 is parallel to corresponding grinding area 1; 2 respective edges 11,12,13; 21,22,23.In addition, the angle 84,85,86 of abrasive sheet 8 respectively surpasses corresponding grinding area 1; 2 respective corners 14,15,16; 24,25,26.This situation also is suitable for SS 87 relative two grinding area 1 of abrasive sheet 8; 2 corresponding grinding hole 17; 27 relation.
In service at the portable milling drum with grinding dish 4 of the present invention and two dresses abrasive sheet 8 thereon, it is strong especially to be arranged on abrasive sheet 8 on first grinding area 1 suffered load in its scope of first jiao 84.This is especially when the grinding corner.In addition, first edge 81 and second edge 82 that are arranged on the abrasive sheet 8 on first grinding area 1 are subjected to strong relatively load equally, are exactly this situation when the grinding edge especially.On the contrary, be contained in the whole abrasive sheet 8 on second grinding area 2 owing to be face grinding wearing and tearing hardly in described zone.Other zone that is arranged on the abrasive sheet 8 on first grinding area 1 also is like this.
If the abrasive sheet 8 that is arranged on first grinding area 1 is worn in its scope of first jiao 84, then can be simply abrasive sheet be taken fabric 7 and shut down from sticking, turn over 120 ° and be pressed onto sticking taking on the fabric 7 again.Therefore, when rotating 120 ° in the clockwise direction, third angle 86 will be placed on the pinnacle of first grinding area 1.This third angle 86 will be subjected to the strongest load now.In case wearing and tearing have appearred in this third angle 86, then can repeat the process of 120 ° of described just now rotations again.Therefore be arranged on this abrasive sheet 8 on first grinding area 1 can use traditional relatively grinding agreement that contracts a film or TV play to an actor or actress three double-lengths on portable milling drum time.
And two abrasive sheets 8 on these two grinding area 1,2 service life relative prior art abrasive sheet also can increase because all three angles 84,85,86 of the abrasive sheet 8 on first grinding area 1 when all wearing and tearing, can make two abrasive sheets 8 exchange mutually simply.And then make the abrasive sheet 8-that before is contained on second grinding area 2 by 120 ° of each rotations-can re-use the time of accessible three double-lengths of relative prior art.
Therefore can accomplish by grinding dish 4 of the present invention: but the significant prolongation in service life of abrasive sheet 8-be about 6 times that have portable milling drum now.In addition also can, except outstanding angle and edge grinding, also can obtain good face grinding.
In the illustrated case, two grinding faces 1,2 105cm that has an appointment altogether
2Size.It is approximately corresponding to the size of the rectangular area of the grinding dish basal plane of the portable grinding machine with the length of side 80 x 133mm.Therefore summarize to get up we can say, not only from ecology and also can reach obvious improvement by the relative prior art of above-mentioned invention from an economic point of view.
Claims (4)
1. the grinding dish (4) that is used for power-actuated portable grinding machine, has the bonding pad (3) between first grinding area (1), second grinding area (2) and first grinding area (1) and second grinding area (2), it is characterized in that: these grinding area (1,2) has identical configuration and being provided with symmetrically in a symmetry axis (S) that extends through described bonding pad (3) toward each other
These grinding area respectively have an edge (11,12,13 equilateral, that have outside arc-shaped bend; 21,22,23) leg-of-mutton basal plane,
The relative longitudinal axis perpendicular to described symmetry axis (S) of these grinding area (L) are provided with symmetrically,
These grinding area constitute the end of this grinding dish (4) with the angle (14,24) on the described longitudinal axis of being positioned at of they (L), and
Abrasive sheet (8) removably is arranged on these grinding area respectively.
2. according to the grinding dish of claim 1, it is characterized in that: no matter be that first grinding area (1) or second grinding area (2) respectively have a plurality of SSs (17; 27), they are disposed in respectively on the circumference.
3. according to the grinding dish of claim 1, it is characterized in that: in bonding pad (3), be configured with a plurality of suction channels (31).
4. according to the grinding dish of claim 3, it is characterized in that: these suction channels (31) are disposed in the fringe region of grinding dish (4).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10326560 | 2003-06-12 | ||
| DE10326560.0 | 2003-06-12 | ||
| DE10349207.0 | 2003-10-23 | ||
| DE10349207A DE10349207A1 (en) | 2003-06-12 | 2003-10-23 | Grinding plate for a motor-driven hand grinding tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1572426A CN1572426A (en) | 2005-02-02 |
| CN100542746C true CN100542746C (en) | 2009-09-23 |
Family
ID=32714801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100490079A Expired - Fee Related CN100542746C (en) | 2003-06-12 | 2004-06-14 | The grinding dish that is used for power-actuated portable grinding machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100542746C (en) |
| GB (1) | GB2402641B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225380A (en) * | 2011-04-26 | 2011-10-26 | 江苏迈安德食品机械有限公司 | Liquid-pool water-level adjusting device for horizontal decanter centrifuge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4965966A (en) * | 1987-12-11 | 1990-10-30 | Gerd Braasch | Grinding tool body |
| US5736427A (en) * | 1996-10-08 | 1998-04-07 | Micron Technology, Inc. | Polishing pad contour indicator for mechanical or chemical-mechanical planarization |
| US6045887A (en) * | 1994-08-25 | 2000-04-04 | Black & Decker Inc. | Abrasive sheets |
| DE19914956A1 (en) * | 1999-04-01 | 2000-10-05 | Metabowerke Kg | Electric grinder has eccentric oscillating plate, abrasive grinding piece, machine housing, drive axle and intermediate flanged plate |
| CN2496599Y (en) * | 2001-08-06 | 2002-06-26 | 宁波经济技术开发区中强电动工具有限公司 | Transposition and self-locking triangle grinding machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0726121A3 (en) * | 1995-02-09 | 1996-10-02 | Porter Cable Corp | In-line sander system |
| US6132299A (en) * | 1999-04-19 | 2000-10-17 | Tasikas; James Nil | Linear sander |
-
2004
- 2004-06-02 GB GB0412289A patent/GB2402641B/en not_active Expired - Fee Related
- 2004-06-14 CN CNB2004100490079A patent/CN100542746C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4965966A (en) * | 1987-12-11 | 1990-10-30 | Gerd Braasch | Grinding tool body |
| US6045887A (en) * | 1994-08-25 | 2000-04-04 | Black & Decker Inc. | Abrasive sheets |
| US5736427A (en) * | 1996-10-08 | 1998-04-07 | Micron Technology, Inc. | Polishing pad contour indicator for mechanical or chemical-mechanical planarization |
| DE19914956A1 (en) * | 1999-04-01 | 2000-10-05 | Metabowerke Kg | Electric grinder has eccentric oscillating plate, abrasive grinding piece, machine housing, drive axle and intermediate flanged plate |
| CN2496599Y (en) * | 2001-08-06 | 2002-06-26 | 宁波经济技术开发区中强电动工具有限公司 | Transposition and self-locking triangle grinding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2402641B (en) | 2005-05-25 |
| GB2402641A (en) | 2004-12-15 |
| GB0412289D0 (en) | 2004-07-07 |
| CN1572426A (en) | 2005-02-02 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20150614 |
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| EXPY | Termination of patent right or utility model |