EP0143336B1 - Buffing disc or wheel - Google Patents
Buffing disc or wheel Download PDFInfo
- Publication number
- EP0143336B1 EP0143336B1 EP84112890A EP84112890A EP0143336B1 EP 0143336 B1 EP0143336 B1 EP 0143336B1 EP 84112890 A EP84112890 A EP 84112890A EP 84112890 A EP84112890 A EP 84112890A EP 0143336 B1 EP0143336 B1 EP 0143336B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- disc
- threads
- supporting ring
- buffing
- buffing disc
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000004753 textile Substances 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 4
- 210000002268 wool Anatomy 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 3
- 230000027455 binding Effects 0.000 claims 1
- 238000009739 binding Methods 0.000 claims 1
- 238000005498 polishing Methods 0.000 abstract description 23
- 239000012209 synthetic fiber Substances 0.000 description 5
- 229920002994 synthetic fiber Polymers 0.000 description 5
- 238000005352 clarification Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000008395 clarifying agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
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
- 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
- B24D13/08—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising annular or circular sheets packed side by side
Definitions
- the invention relates to a polishing disc or polishing roller of the type specified in the preamble of claim 1 or 16.
- Polishing disks or rollers of this type are intended for use in polishing or buffing machines, in which they are rotated rapidly for polishing, polishing, lapping or clarifying the surface of prepared workpieces and provided with a polishing or clarifying agent in their free peripheral surface.
- the compliant layer on the disc or roller circumference has so far mainly consisted of completely round, fabric sheets which are either loose or quilted together.
- the finest fabrics made of wool or cotton are mainly used, which should adapt to the contours of the workpiece to be machined as well as possible.
- a polishing disc of the type specified at the outset known as an industrial brush
- an industrial brush which consists of a rigid support ring and a layer fastened to the circumference of the support ring and made of textile thread material which is distributed over the circumference and essentially radially outwards and contains synthetic fibers.
- the bristles of the industrial brush are more or less stiff to the outside and are so tightly packed that they are radially aligned even when the disc is stationary.
- the thickness, length and material of the threads are chosen so that a sufficient inherent stiffness is ensured, which holds the bristle-like bristles in their radially extended position. It is therefore not easily possible to polish complex surfaces without leaving a trace.
- the invention is therefore based on the object of providing a polishing disc or roller which ensures cloud-free or shadow-free clarification of even complicated surfaces.
- the invention is based on the idea that cloud-free clarification, even of complicated surfaces, is only possible if the grain contained in the clarifying paste is hammered evenly into the deepest corners of the workpiece surface, i.e. if there is a constant level of fogging that can be controlled via the speed local pressure is maintained.
- this is achieved in that the individual threads do not hit the surface of the workpiece with a whip like length, and are pulled off over the disc as the disc continues to rotate. They deflect axially during pressing, so that the press values cannot add up, as is the case with polishing discs made of fabric sheets.
- the proportion of particle-repellent synthetic fibers increases in the axial direction from one side to the other, the workpiece surface can be freed from coarser bumps and impurities in the course of the clarification process by simply pushing it in the axial direction and with increasing synthetic fiber content be brought to a high gloss in the threads. Since the heat generated during the polishing process is far lower than before, a higher proportion of synthetic fibers, which ensure a long service life, can be used.
- the individual threads driven outwards due to the centrifugal force are 30 to 50 cm long and 0.02 to 1 mm thick and give a thread density of 10 to 100 threads per cm 2 on the peripheral surface.
- the buffing wheel can be provided at its front ends with limiting rings made of textile material, which can be separated into individual, overlapping strips of fabric by radial cuts.
- the limiting rings also have the task of stabilizing the air flow in the area of the polishing pad and of keeping the axial spreading of the thread layer within limits.
- the polishing discs shown in the drawing consist of a rigid support ring 10 and a resilient layer 12 fastened to the circumference of the support ring, which layer contains a multiplicity of individual threads 14 arranged distributed over the circumference of the support ring.
- the individual threads are under the influence of centrifugal force so that their free ends point essentially radially outwards.
- the individual threads 14 are at their ends on the support ring side to form thread layers, not shown, with a thickness of about 10 mm connected by a spiral or ring-shaped bandage 15.
- Several of these thread layers are attached to the support ring surface at a mutual axial distance of about 20 mm, for example glued or quilted.
- the thread ring-side thread ends are wound onto the support ring surface in the circumferential direction before they are fixed there.
- the at least 10, preferably 30 to 50 cm long, free thread ends are driven outwards by centrifugal force in such a way that, despite the thread layers arranged at a distance from one another, they have a peripheral surface 16 with an approximately uniform thread density of approximately 10 to 100 threads per form cm 2 .
- the twisted individual threads 14 have a diameter of approximately 0.02 to 1 mm and are spread apart like a brush at their free ends after prolonged use.
- the polishing disc is provided at its front ends with limiting rings 18 made of textile material, which are separated by radial cuts 20 into individual, overlapping strips of material 22.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine Polierscheibe oder Polierwalze der im Oberbegriff des Anspruchs 1 bzw. 16 angegebenen Gattung.The invention relates to a polishing disc or polishing roller of the type specified in the preamble of
Polierscheiben oder -walzen dieser Art sind für den Einsatz in Polier- oder Schwabbelmaschinen bestimmt, in denen sie zum Polieren, Polierläppen oder Abklären der Oberfläche vorgearbeiteter Werkstücke in eine schnelle Umdrehung versetzt und in ihrer freien Umfangsfläche mit einem Polier- oder Abklärmittel versehen werden. Die nachgiebige Schicht am Scheiben- oder Walzenumfang besteht bisher überwiegend aus vollrunden, als Gewebe ausgebildeten Stoffblättern, die entweder lose oder miteinander versteppt sind. Für das Abklären werden hauptsächlich feinste Tuche aus Wolle oder Baumwolle eingesetzt, die sich an die Konturen des zu bearbeitenden Werkstücks möglichst gut anpassen sollen.Polishing disks or rollers of this type are intended for use in polishing or buffing machines, in which they are rotated rapidly for polishing, polishing, lapping or clarifying the surface of prepared workpieces and provided with a polishing or clarifying agent in their free peripheral surface. The compliant layer on the disc or roller circumference has so far mainly consisted of completely round, fabric sheets which are either loose or quilted together. For the clarification, the finest fabrics made of wool or cotton are mainly used, which should adapt to the contours of the workpiece to be machined as well as possible.
Es hat sich gezeigt, daß auch feinste Tuche aufgrund der in ihnen enthaltenden Querfäden einen Pressdruck auf die Werkstückoberfläche ausüben, der ein wolkenfreies oder schattenfreies Polieren erschwert oder gar unmöglich macht. Ebenso ist es mit den bekannten Polierscheiben nicht ohne weiteres möglich, komplizierte Oberflächen mit engen konkav gekrümmten Rillen oder Taschen gleichmäßig und spurenfrei zu polieren oder abzuklären.It has been shown that even the finest fabrics, due to the transverse threads they contain, exert a pressure on the workpiece surface, which makes cloud-free or shadow-free polishing difficult or even impossible. Likewise, it is not readily possible with the known polishing discs to polish or clarify complicated surfaces with narrow concavely curved grooves or pockets evenly and without leaving any traces.
Weiter ist eine als Industriebürste bezeichnete Polierscheibe der eingangs angegebenen Art bekannt, die einen starren Tragring und eine am Umfang des Tragrings befestigte Schicht aus über den Umfang verteilt angeordnetem, im wesentlichen radial nach außen weisendem, Kunstfasern enthaltendem textilem Fadenmaterial besteht. Die Borsten der Industriebürste stehen mehr oder weniger steif nach außen und sind so dicht gepackt, daß sie auch bei stillstehender Scheibe radial ausgerichtet sind. Dicke, Länge und Material der Fäden sind so gewählt, daß eine ausreichende Eigensteifigkeit gewährleistet ist, die die kordelähnlich ausgebildeten Borsten in ihrer radial gestreckten Lage hält. Es ist daher nicht ohne weiteres möglich, komplizierte Oberflächen spurenfrei zu polieren.Furthermore, a polishing disc of the type specified at the outset, known as an industrial brush, is known which consists of a rigid support ring and a layer fastened to the circumference of the support ring and made of textile thread material which is distributed over the circumference and essentially radially outwards and contains synthetic fibers. The bristles of the industrial brush are more or less stiff to the outside and are so tightly packed that they are radially aligned even when the disc is stationary. The thickness, length and material of the threads are chosen so that a sufficient inherent stiffness is ensured, which holds the bristle-like bristles in their radially extended position. It is therefore not easily possible to polish complex surfaces without leaving a trace.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Polierscheibe oder -walze zu schaffen, die ein wolken- bzw. schattenfreies Abklären auch kompliziert gestalteter Oberflächen gewährleistet.The invention is therefore based on the object of providing a polishing disc or roller which ensures cloud-free or shadow-free clarification of even complicated surfaces.
Zur Lösung dieser Aufgabe werden die in den Ansprüchen 1 und 16 angegebenen Merkmalskombinationen vorgeschlagen. Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.To achieve this object, the combinations of features specified in
Die Erfindung geht von dem Gedanken aus, daß ein wolkenfreies Abklären auch komplizierter Oberflächen nur dann möglich ist, wenn das in der Abklärpaste enthaltene Korn bis in die tiefsten Winkel der Werkstückoberfläche gleichmäßig eingeschlagen wird, wenn also ein gegebenenfalls über die Drehzahl steuerbares, gleichbleibendes Beschlagniveau ohne lokale Pressung eingehalten wird. Mit den erfindungsgemäßen Vorkehrungen wird dies dadurch erreicht, daß die Einzelfäden nicht mit ihrer Spitze, sondern ihrer Länge nach peitschenartig auf die Werkstückoberfläche aufschlagen und beim Weiterdrehen der Scheibe über diese abgezogen werden. Sie weichen bei einer Pressung axial aus, so daß sich die Preßwerte nicht addieren können, wie dies bei Polierscheiben aus Stoffblättern der Fall ist. Wenn gemäß der Erfindung der Anteil an partikelabweisenden Kunstfasern, beispielsweise Polyesterfasern, in axialer Richtung von der einen zur andei en Scheibenseite stetig zunimmt, kann die Werkstückoberfläche im Zuge des Abklärvorgangs durch einfaches Durchschieben in axialer Richtung zunächst von gröberen Unebenheiten und Verunreinigungen befreit und mit zunehmendem Kunstfaseranteil in den Fäden auf Hochglanz gebracht werden. Da die Wärmeentwicklung beim Poliervorgang weit geringer als bisher ist, kann ein höherer Anteil an synthetischen Fasern, die eine hohe Standzeit gewährleisten, verwendet werden.The invention is based on the idea that cloud-free clarification, even of complicated surfaces, is only possible if the grain contained in the clarifying paste is hammered evenly into the deepest corners of the workpiece surface, i.e. if there is a constant level of fogging that can be controlled via the speed local pressure is maintained. With the precautions according to the invention, this is achieved in that the individual threads do not hit the surface of the workpiece with a whip like length, and are pulled off over the disc as the disc continues to rotate. They deflect axially during pressing, so that the press values cannot add up, as is the case with polishing discs made of fabric sheets. If, according to the invention, the proportion of particle-repellent synthetic fibers, for example polyester fibers, increases in the axial direction from one side to the other, the workpiece surface can be freed from coarser bumps and impurities in the course of the clarification process by simply pushing it in the axial direction and with increasing synthetic fiber content be brought to a high gloss in the threads. Since the heat generated during the polishing process is far lower than before, a higher proportion of synthetic fibers, which ensure a long service life, can be used.
Gemäß einer bevorzugten Ausgestaltung der Erfindung sind die auf Grund der Fliehkraft nach außen getriebenen Einzelfäden 30 bis 50 cm lang und 0,02 bis 1 mm dick und ergeben an der Umfangsfläche eine Fadendichte von 10 bis 100 Fäden pro cm2.According to a preferred embodiment of the invention, the individual threads driven outwards due to the centrifugal force are 30 to 50 cm long and 0.02 to 1 mm thick and give a thread density of 10 to 100 threads per cm 2 on the peripheral surface.
Um die freien Fadenenden auch bei stehender Polierscheibe und beim Transport in einem bestimmten axialen Bereich festzuhalten, kann die Polierscheibe an ihren stirnseitigeri Enden mit Begrenzungsringen aus Textilstoff versehen werden, die durch Radialschnitte in einzelne, einander überlappende Stoffstreifen aufgetrennt sein können. Während des Betriebs haben die Begrenzungsringe zusätzlich die Aufgabe, die Luftströmung im Bereich der Polierscheibe zu stabilisieren und das axiale Aufspreizen der Fadenschicht in Grenzen zu halten.In order to hold the free thread ends even when the buffing wheel is stationary and during transport in a certain axial area, the buffing wheel can be provided at its front ends with limiting rings made of textile material, which can be separated into individual, overlapping strips of fabric by radial cuts. During operation, the limiting rings also have the task of stabilizing the air flow in the area of the polishing pad and of keeping the axial spreading of the thread layer within limits.
In der Zeichnung sind zwei bevorzugte Ausführungsbeispiele der Erfindung in schematischer Weise dargestellt. Es zeigen:
- Fig. 1 eine Polierscheibe mit einer nachgiebigen Schicht aus Einzelfäden in schaubildlicher Darstellung;
- Fig. 2 eine Polierscheibe entsprechend Fig. 1 mit stirnseitigen Begrenzungsringen.
- Figure 1 is a polishing pad with a resilient layer of individual threads in a graphical representation.
- Fig. 2 is a polishing pad corresponding to FIG. 1 with end rings.
Die in der Zeichnung dargestellten Polierscheiben bestehen aus einem starren Tragring 10 und einer am Umfang des Tragrings befestigten nachgiebigen Schicht 12, die eine Vielzahl von über den Umfang des Tragrings verteilt angeordneten Einzelfäden 14 enthält. Bei schnell drehender Polierscheibe stehen die Einzelfäden so unter der Einwirkung der Fliehkraft, daß ihre freien Enden im wesentlichen radial nach außen weisen. An ihren tragringseitigen Enden sind die Einzelfäden 14 unter Bildung von nicht dargestellten Fadenlagen mit einer Stärke von etwa 10 mm durch eine spiral- oder ringförmige Bandage 15 miteinander verbunden. Mehrere dieser Fadenlagen werden in gegenseitigem axialem Abstand von etwa 20 mm an der Tragringoberfläche befestigt, beispielsweise festgeklebt oder festgesteppt. Um eine sichere Befestigung an der Tragringoberfläche zu gewährleisten, werden die tragringseitigen Fadenenden in Umfangsrichtung auf die Tragringoberfläche aufgewickelt, bevor die dort fixiert werden.The polishing discs shown in the drawing consist of a
Beim schnellen Drehen der Polierscheibe werden die mindestens 10, vorzugsweise 30 bis 50 cm langen freien Fadenenden so durch die Fliehkraft nach außen getrieben, daß sie trotz der im Abstand voneinander angeordneten Fadenlagen eine Umfangsfläche 16 mit annähernd gleichmäßiger Fadendichte von ca. 10 bis 100 Fäden pro cm2 bilden. Die gezwirnten Einzelfäden 14 besitzen dabei je nach Anwendungsfall einen Durchmesser von ca. 0,02 bis 1 mm und werden nach längerer Benutzung an ihren freien Enden pinselartig aufgespreizt. Als Fadenmaterial wird bevorzugt ein Fasergemisch aus 60 bis 90 % Baumwolle oder Wolle und aus 40 bis 10 % Kunstfasern, insbesondere Polyesterfasern verwendet.When the polishing disc rotates rapidly, the at least 10, preferably 30 to 50 cm long, free thread ends are driven outwards by centrifugal force in such a way that, despite the thread layers arranged at a distance from one another, they have a
Bei dem in Fig. 2 gezeigten Ausführungsbeispiel ist die Polierscheibe an ihren stirnseitigen Enden mit Begrenzungsringen 18 aus Textilstoff versehen, die durch Radialschnitte 20 in einzelne, einander überlappende Stoffstreifen 22 aufgetrennt sind.In the embodiment shown in FIG. 2, the polishing disc is provided at its front ends with limiting
Claims (16)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT84112890T ATE33779T1 (en) | 1983-10-27 | 1984-10-25 | POLISHING DISC OR ROLLER. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3338964 | 1983-10-27 | ||
| DE19833338964 DE3338964A1 (en) | 1983-10-27 | 1983-10-27 | POLISHING DISC OR ROLLER |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0143336A2 EP0143336A2 (en) | 1985-06-05 |
| EP0143336A3 EP0143336A3 (en) | 1986-02-05 |
| EP0143336B1 true EP0143336B1 (en) | 1988-04-27 |
Family
ID=6212853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84112890A Expired EP0143336B1 (en) | 1983-10-27 | 1984-10-25 | Buffing disc or wheel |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4599761A (en) |
| EP (1) | EP0143336B1 (en) |
| AT (1) | ATE33779T1 (en) |
| DE (2) | DE3338964A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4800611A (en) * | 1986-04-16 | 1989-01-31 | Hakuto Co., Ltd. | Plate cleaning apparatus and cleaning roller therefor |
| DE3916104A1 (en) * | 1989-05-18 | 1990-11-22 | Helmut Stahl | POLISHING METHOD AND POLISHING MACHINE |
| AT180U1 (en) * | 1993-06-04 | 1995-04-25 | Fischer Josef Fischer Josef | DEVICE FOR BRUSHING WOOD MATERIALS |
| US6713413B2 (en) * | 2000-01-03 | 2004-03-30 | Freudenberg Nonwovens Limited Partnership | Nonwoven buffing or polishing material having increased strength and dimensional stability |
| USD808236S1 (en) * | 2016-02-26 | 2018-01-23 | Domaille Engineering, Llc | Spring member of an optical fiber polishing fixture |
| DE102017105394B4 (en) | 2017-03-14 | 2018-12-27 | Eickelit GmbH | Polishing wheel or roller |
| CN110405644A (en) * | 2019-06-28 | 2019-11-05 | 安徽省潜山县富源特种制刷有限公司 | A kind of clip type abrasive filaments polishing buff |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1475074A (en) * | 1922-02-23 | 1923-11-20 | Mclaughlin Mark | Revolving brush |
| FR589087A (en) * | 1924-01-18 | 1925-05-22 | Improvement with circular brushes | |
| US2090814A (en) * | 1936-04-30 | 1937-08-24 | Herman Seybert | Buffing wheel |
| FR830190A (en) * | 1937-02-03 | 1938-07-22 | Improvements to polishing wheels | |
| US2294245A (en) * | 1940-02-01 | 1942-08-25 | Schlegel Mfg Co | Polishing belt |
| US2816403A (en) * | 1952-09-06 | 1957-12-17 | Osborn Mfg Co | Buff |
| GB786662A (en) * | 1955-05-18 | 1957-11-20 | Karoline Kreeb | Improvements in or relating to rotary brushes |
| DE1037913B (en) * | 1955-12-19 | 1958-08-28 | Iabi Flexia Ges M B H | Polishing, grinding or contact disc and method for making the same |
| CH356034A (en) * | 1958-03-06 | 1961-07-31 | Jetzer Oskar | Polishing brush, especially for matt polishing fine metals |
| US2920428A (en) * | 1958-12-17 | 1960-01-12 | F L & J C Codman Company | Rotary finger buff |
| CH419888A (en) * | 1960-02-02 | 1966-08-31 | Werner Born Ag | Rotary brush |
| FR1418358A (en) * | 1964-11-04 | 1965-11-19 | Osborn Mfg Co | Brushes and material used in their manufacture |
| US3438080A (en) * | 1967-04-27 | 1969-04-15 | Jackson Buff Corp | Combined soft cloth and hard coarse cord buff |
| FR2198365A5 (en) * | 1972-08-31 | 1974-03-29 | Rhone Poulenc Textile | Brush having synthetic tufts - formed by stiff fibres and fibres whose flexibi-lity increases from root to tip |
| US3969090A (en) * | 1973-06-22 | 1976-07-13 | Anderson Corporation | Industrial brush |
-
1983
- 1983-10-27 DE DE19833338964 patent/DE3338964A1/en not_active Withdrawn
-
1984
- 1984-10-25 EP EP84112890A patent/EP0143336B1/en not_active Expired
- 1984-10-25 DE DE8484112890T patent/DE3470676D1/en not_active Expired
- 1984-10-25 AT AT84112890T patent/ATE33779T1/en not_active IP Right Cessation
-
1985
- 1985-01-07 US US06/689,066 patent/US4599761A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0143336A3 (en) | 1986-02-05 |
| EP0143336A2 (en) | 1985-06-05 |
| ATE33779T1 (en) | 1988-05-15 |
| DE3338964A1 (en) | 1985-05-09 |
| US4599761A (en) | 1986-07-15 |
| DE3470676D1 (en) | 1988-06-01 |
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