EP0943400A2 - Grinding brush - Google Patents

Grinding brush Download PDF

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Publication number
EP0943400A2
EP0943400A2 EP99100232A EP99100232A EP0943400A2 EP 0943400 A2 EP0943400 A2 EP 0943400A2 EP 99100232 A EP99100232 A EP 99100232A EP 99100232 A EP99100232 A EP 99100232A EP 0943400 A2 EP0943400 A2 EP 0943400A2
Authority
EP
European Patent Office
Prior art keywords
abrasive
grooves
strip
brush according
abrasive brush
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.)
Granted
Application number
EP99100232A
Other languages
German (de)
French (fr)
Other versions
EP0943400B1 (en
EP0943400A3 (en
Inventor
Manfred Brinkmann
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.)
Arminius Schleifmittel GmbH
Original Assignee
Arminius Schleifmittel GmbH
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Filing date
Publication date
Application filed by Arminius Schleifmittel GmbH filed Critical Arminius Schleifmittel GmbH
Publication of EP0943400A2 publication Critical patent/EP0943400A2/en
Publication of EP0943400A3 publication Critical patent/EP0943400A3/en
Application granted granted Critical
Publication of EP0943400B1 publication Critical patent/EP0943400B1/en
Anticipated expiration legal-status Critical
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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
    • B24D13/06—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery the flaps or strips being individually attached
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/08—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by clamping
    • 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

Definitions

  • the invention relates to an abrasive brush with a metallic base body has circumferential or end faces at an angular distance from one another, in the clamping profiles of strip brushes are positive and / or non-positive, but can be replaced are fixed so that between the strip brushes supporting abrasive cloth sections fixed to the base body are provided.
  • the grinding brush in question can also be referred to as a rotor brush and is used in grinding machines.
  • the basic body with a hole provided for attaching to the grinding shaft.
  • the strip brushes become the so-called Brush trimmings formed. This can be made of different materials, such as e.g. B. horsehair, wire, abrasive grain bristles, fiber and a similar material consist.
  • the grinding brushes are used for grinding, dusting and cleaning, smoothing and Structuring wood, metal, plastics and the like used.
  • Abrasives serve the abrasive cloth sections, which then adhere to the in Support the brushes behind the direction of rotation. This makes it possible that even uneven or profiled workpieces can be ground.
  • the abrasive cloth sections are wearing parts, so that after a certain grinding time the effect is no longer achieved.
  • Known abrasive brushes are the abrasive cloth sections into the interior of the Main body guided so that the part inserted therein is considered as a supply can be readjusted when the abrasive cloth sections wear.
  • the readjustment of the abrasive cloth sections is consequently very much laborious.
  • Another disadvantage is that a relatively large length the abrasive cloth section remains as the remainder if an adjustment is not is more possible. This length results from the distance between the outer edges of the Strip brush to the outer surface or end face of the base body.
  • the invention has for its object a grinding brush of the one described in more detail above Type in such a way that the no longer usable residues of the abrasive fabric sections be significantly reduced so that the economy increases becomes. Furthermore, the number of on the circumference or on the end face of the grinding brush arranged abrasive cloth sections can be increased.
  • the task is solved by the abrasive fabric sections on flexible Feet are fixed in together with the clamping profiles of the strip brushes the grooves are clamped.
  • the base body is free of the abrasive cloth.
  • the flexible foot can be designed so that the size of the attached to it Abrasive cloth section is significantly smaller than that which can no longer be used The rest of the previously known grinding brushes.
  • connection area between the flexible foot and the abrasive cloth section expediently lies outside the base body.
  • the grinding brushes are driven at a relatively high speed. So that the abrasive cloth sections not be pulled out of the grooves by centrifugal force is to increase dar provided that at least the clamped area of the flexible foot is angular or U-shaped and the clamping profile accordingly embraces.
  • the bottom of the grooves on at least two different circles or levels.
  • the bottom of the grooves runs on different circles when the peripheral surface the base body is equipped with the strip brushes.
  • the bottom of the grooves is there then at an alternating distance from the axis of rotation of the grinding wheel. If the End face of the base body is equipped with it, the bottom of the grooves is in alternating Distances to the face.
  • the abrasive cloth sections to a certain Dimension are worn out, they can then be inserted into the grooves, the reason for which is the smaller distance from the peripheral surface or from the end surface. On in this way, the abrasive cloth sections can be used up almost completely.
  • the grooves are expediently arranged in the base body according to a scheme. So it is advantageous if the grooves with the different depths alternate are arranged, since there is then the possibility that the angular distances be reduced between the grooves compared to the known designs, so that on the circumference or on the end face the number of strip brushes and Abrasive cloth sections is increased. This will make a much better one Grinding result achieved.
  • the number of abrasive cloth sections and the Strip brushes can be increased by approximately 40%. You can also go to The end face of the base body can be arranged in a radiation pattern, which facilitates use in machining centers. According to another Execution is provided that the opposite of the circumferential or the end face of the base protruding area of the foot runs in an arc. The one abrasive cloth section attached to this area is then shaped accordingly. The deformability of the strip brushes is limited, but they deform Abrasive cloth sections stronger.
  • the design of the Grinding brushes expanded because of the risk of damage to the grinded Component is significantly reduced and the wear of the abrasive cloth sections is reduced because the impact load on contact with the grinding Component is reduced.
  • the bow can be from the curvature and also from Curvature can be designed arbitrarily. However, it is preferably shaped so that the outer edges at a greater distance from the assigned strip brush stand as the middle area. Regardless of the design of the Abrasive brush are the abrasive cloth sections at least in the outer, the flexible Provide longitudinal incisions in the area facing away from the foot.
  • the inventive abrasive brushes are also used for machining Profiling of different cross sections used.
  • the design of the Strip brushes and the abrasive cloth sections then depend on the Cross sections of the profile strips.
  • the flexible foot extends into the area of the outer free edge of the associated Abrasive brush extends, and that the abrasive cloth section on the outer free Edge of the flexible foot is set.
  • the outer contour the strip brush and the contour of the abrasive cloth section adapted to it is related to the cross section of a profile strip or is adapted to this Execution provided that between the bristle row of the strip brush and the flexible foot a support cushion, preferably fixed to the row of bristles is provided. This support cushion is then in the direction of rotation of the grinding brush seen in front of the strip brush. This increases the grinding effect, since the Does not deform the support cushion as much as the strip brush.
  • the support cushion is expediently made of foam rubber or the like elastically deformable material. Regardless of the design of the abrasive brush can particularly advantageously remove the abrasive cloth sections and the strip brushes can be designed as profile elements to attach them to the adapt different cross-sections of the objects to be processed.
  • the grinding brushes 10 shown in FIGS. 1 and 2 essentially exist from a metallic base body 11, a plurality of strip brushes 12 and a corresponding number of abrasive cloth sections 13 between the Strip brushes 12 are arranged so that in the direction of rotation behind the abrasive cloth sections 13 lying strip busts 12 are used for support.
  • a comparison of Figures 1 and 2 shows that the outer diameter of the metallic Base body 11 in the end arrangement of the strip brushes 12 significantly larger than with the arrangement on the peripheral surface.
  • the figures also show that the outer, free ends of the abrasive cloth sections 13 are slightly opposite protrude the ends of the strip brushes 12.
  • FIG. 3 shows one possibility of arranging grooves 14 for receiving the Strip brushes 12.
  • these grooves extend from the Circumferential surface of the base body 11 and extend over its entire Width.
  • an end face with the Grooves 14 provided. These start from the face.
  • the peripheral surface of the base body 11 is in accordance with the embodiment of Figure 1 and the annular end face in the Execution according to FIG. 2 characterized by reference number 15.
  • the grooves 14 are alternating in two different depths executed, d. H. in the embodiment according to FIG. 1, the bottom of the grooves lies on two different diameters, while in the embodiment according to FIG. 2 the bottom of the grooves 14 is in two planes to the annular end face.
  • the grooves 14 can also be in more than two different depths can be incorporated into the base body 11. It it follows from FIG. 3 that those defined in the grooves 14 with the greater depth Strip brushes and abrasive cloth sections 13 after a certain Wear can be used in the grooves 14 with the smaller depth, so that the full grinding effect is then restored.
  • the grooves 14 are of less depth dovetail-shaped.
  • the grooves 14 with the greater depth is the part which extends to the bottom of these grooves is square and adjoins it then the dovetail-shaped part again, so that the inserted Strip brushes are positively fixed in it.
  • the grooves could also be T-shaped.
  • Figure 4 shows that the abrasive cloth sections 13 on a flexible foot 16 are preferred are attached by gluing.
  • This foot 16 is in the lower, the abrasive cloth section 13 remote area formed angled.
  • This lower one The area is inserted into the dovetail-shaped groove 14 and engages around it Clamping profile 17, which holds the individual bristles of the strip brushes 12 together.
  • the lower area of the flexible foot 16 may also be U-shaped.
  • the area of the flexible foot 16 protruding from the base body 11 forms the connection area to the abrasive cloth section 13.
  • the free edge of the flexible foot 16 runs in an arc directed towards the base body 11. in the The illustrated embodiment is the one protruding from the base body 11
  • Area of the flexible foot 16 also opposite the strip brushes 12 arched so that the outer edges at a greater distance from the direction of rotation strip brush 12 lying behind stand as the central region. The However, curvature could also be opposite. Through the arched area the abrasive cloth section 13 attached to it is also deformed. This Execution offers advantages when grinding, since there is a risk of damaging the grinding workpiece is significantly reduced.
  • FIG. 5 shows the strip brush 12 and the flexible foot 16 and the abrasive cloth section 13 attached to it for a further embodiment of the abrasive brush 10.
  • This embodiment is particularly suitable for processing profile strips, since the outer contour of the strip brush 12 and thus also the contour of the abrasive cloth section 13 is adapted to the cross-sectional shape of the strips to be processed.
  • the contour of the strip brush 12 could be step -shaped, arc-shaped or the like.
  • Support cushion 18 which is made of foam rubber.
  • the support cushion 18 extends extends over the entire length of the row of bristles of the strip brush 12. In the illustrated Embodiment it is also glued to it.
  • the flexible foot 16 encompasses in the illustrated embodiment in the assembled position the support cushion 18. That is why the upper free edge of the flexible foot 16 into the area of the free edge of the row of bristles drawn. The area facing away from the clamping profile 17 engages over the support cushion 18. The abrasive cloth section 13 is at the overlapping edge of the flexible Foot set. The side walls are also from the flexible foot 16 encompassed one in the illustrated embodiment to the shape of the support pillow 18 adapted molded body is.
  • the invention is not restricted to the exemplary embodiments shown.
  • Essential is the arrangement of the abrasive cloth sections on the flexible feet 16, which together with the clamping profiles 17 of the strip brushes 12 in the grooves 14 are fixed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Brushes (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Massaging Devices (AREA)
  • Transplanting Machines (AREA)

Abstract

The polishing fabric sections(13) of the brush are attached on flexible bases(16) which together with the clamping sections(17) of the brushes(12) are clamped in slots(14) in the body. The connecting area between a flexible base and the fabric section lies outside the body(11) of the brush. At least the clamped area of the flexible base is angled or U-shaped and encloses the clamping section accordingly.

Description

Die Erfindung betrifft eine Schleifbürste mit einem metallischen Grundkörper, der umfangs- oder stirnseitig im Winkelabstand zueinander stehende Nuten aufweist, in die Klemmprofile von Streifenbürsten form- und/oder kraftschlüssig, jedoch auswechselbar festgesetzt sind, so daß zwischen den Streifenbürsten sich daran abstützende, am Grundkörper festgelegte Schleifgewebeabschnitte vorgesehen sind. Die in Frage kommende Schleifbürste kann auch als Rotorbürste bezeichnet werden und wird in Schleifmaschinen eingesetzt. Dazu ist der Grundkörper mit einer Bohrung zum Aufstecken auf die Schleifwelle versehen. Aus den Streifenbürsten wird der sogenannte Bürstenbesatz gebildet. Dieser kann aus unterschiedlichen Materialien, wie z. B. Roßhaar, Draht, Schleifkornborsten, Fiber und aus einem ähnlichen Material bestehen.The invention relates to an abrasive brush with a metallic base body has circumferential or end faces at an angular distance from one another, in the clamping profiles of strip brushes are positive and / or non-positive, but can be replaced are fixed so that between the strip brushes supporting abrasive cloth sections fixed to the base body are provided. The grinding brush in question can also be referred to as a rotor brush and is used in grinding machines. For this purpose, the basic body with a hole provided for attaching to the grinding shaft. The strip brushes become the so-called Brush trimmings formed. This can be made of different materials, such as e.g. B. horsehair, wire, abrasive grain bristles, fiber and a similar material consist.

Die Schleifbürsten werden zum Schleifen, Entstauben und Reinigen, Glätten und Strukturieren von Holz, Metall, Kunststoffen und dergleichen verwendet. Als Schleifmittel dienen die Schleifgewebeabschnitte, die sich dann an die in Drehrichtung dahinter liegenden Streifenbürsten abstützen. Dadurch ist es möglich, daß auch unebene oder profilierte Werkstücke geschliffen werden können. The grinding brushes are used for grinding, dusting and cleaning, smoothing and Structuring wood, metal, plastics and the like used. As Abrasives serve the abrasive cloth sections, which then adhere to the in Support the brushes behind the direction of rotation. This makes it possible that even uneven or profiled workpieces can be ground.

Bei den Schleifbürsten sind die Schleifgewebeabschnitte Verschleißteile, so daß nach einer gewissen Schleifzeit die Wirkung nicht mehr erzielt wird. Bei den bisher bekannten Schleifbürsten werden die Schleifgewebeabschnitte bis in das Innere des Grundkörpers geführt, so daß der darin eingebrachte Teil als Vorrat angesehen werden kann, der bei Abnutzung der Schleifgewebeabschnitte eine Nachstellung ermöglicht. Dazu ist es jedoch notwendig, daß beispielsweise Schrauben gelöst werden, um die Schleifgewebelagen um eine bestimmte Länge aus dem Grundkörper herauszuziehen. Das Nachstellen der Schleifgewebeabschnitte ist demzufolge sehr umständlich. Ferner ist besonders nachteilig, daß eine verhältnismäßig große Länge der Schleifgewebeabschnitte als Rest zurückbleibt, wenn eine Nachstellung nicht mehr möglich ist. Diese Länge ergibt sich aus dem Abstand der äußeren Kanten der Streifenbürste zur Außenfläche oder Stirnfläche des Grundkörpers.In the abrasive brushes, the abrasive cloth sections are wearing parts, so that after a certain grinding time the effect is no longer achieved. With the so far Known abrasive brushes are the abrasive cloth sections into the interior of the Main body guided so that the part inserted therein is considered as a supply can be readjusted when the abrasive cloth sections wear. To do this, however, it is necessary to loosen screws, for example to the abrasive cloth layers by a certain length from the main body pull out. The readjustment of the abrasive cloth sections is consequently very much laborious. Another disadvantage is that a relatively large length the abrasive cloth section remains as the remainder if an adjustment is not is more possible. This length results from the distance between the outer edges of the Strip brush to the outer surface or end face of the base body.

Der Erfindung liegt die Aufgabe zugrunde, eine Schleifbürste der eingangs näher beschriebenen Art so auszubilden, daß die nicht mehr verwertbaren Reste der Schleifgewebeabschnitte wesentlich reduziert werden, so daß die Wirtschaftlichkeit erhöht wird. Ferner soll die Anzahl der auf dem Umfang oder auf der Stirnfläche der Schleifbürste angeordneten Schleifgewebeabschnitte erhöht werden.The invention has for its object a grinding brush of the one described in more detail above Type in such a way that the no longer usable residues of the abrasive fabric sections be significantly reduced so that the economy increases becomes. Furthermore, the number of on the circumference or on the end face of the grinding brush arranged abrasive cloth sections can be increased.

Die gestellte Aufgabe wird gelöst, indem die Schleifgewebeabschnitte an flexiblen Füßen festgelegt sind, die zusammen mit den Klemmprofilen der Streifenbürsten in den Nuten eingespannt sind.The task is solved by the abrasive fabric sections on flexible Feet are fixed in together with the clamping profiles of the strip brushes the grooves are clamped.

Bei der erfindungsgemäßen Schleifbürste ist der Grundkörper frei von dem Schleifgewebe. Der flexible Fuß kann so gestaltet sein, daß die Größe des daran befestigten Schleifgewebeabschnittes wesentlich kleiner ist als der nicht mehr zu verwertende Rest bei den bisher bekannnten Schleifbürsten.In the abrasive brush according to the invention, the base body is free of the abrasive cloth. The flexible foot can be designed so that the size of the attached to it Abrasive cloth section is significantly smaller than that which can no longer be used The rest of the previously known grinding brushes.

Da der flexible Fuß zusammen mit den Streifenbürsten in der Nut festgelegt wird, entfallen zusätzliche Mittel, um den Schleifgewebeabschnitt festzulegen. Das Wechseln der Schleifgewebeabschnitte ist demzufolge in äußerst kurzer Zeit durchzuführen, da die Nuten und das Klemmprofil der Streifenbürsten so gestaltet sind, daß ein Formschluß erzielt wird. Dies ist beispielsweise durch Nuten möglich, die im Querschnitt schwalbenschwanzförmig gestaltet sind.Since the flexible foot is fixed in the groove together with the strip brushes, there is no additional means to fix the abrasive cloth section. The change the abrasive cloth section is therefore extremely short because the grooves and the clamping profile of the strip brushes are designed in this way are that a positive connection is achieved. This is possible, for example, through grooves, which are dovetail-shaped in cross-section.

Der Verbindungsbereich zwischen dem flexiblen Fuß und dem Schleifgewebeabschnitt liegt zweckmäßigerweise außerhalb des Grundkörpers. Die Schleifbürsten werden mit einer relativ großen Drehzahl angetrieben. Damit die Schleifgewebeabschnitte durch die Fliehkraft nicht aus den Nuten herausgezogen werden, ist zur Erhöhung dar Sicherheit vorgesehen, daß zumindest der eingespannte Bereich des flexiblen Fußes winkel- oder U-förmig ausgebildet ist und das Klemmprofil entsprechend umgreift.The connection area between the flexible foot and the abrasive cloth section expediently lies outside the base body. The grinding brushes are driven at a relatively high speed. So that the abrasive cloth sections not be pulled out of the grooves by centrifugal force is to increase dar provided that at least the clamped area of the flexible foot is angular or U-shaped and the clamping profile accordingly embraces.

In weiterer Ausgestaltung ist vorgesehen, daß der Grund der Nuten auf wenigstens zwei unterschiedlichen Kreisen oder Ebenen verläuft.In a further embodiment it is provided that the bottom of the grooves on at least two different circles or levels.

Der Grund der Nuten verläuft auf unterschiedlichen Kreisen, wenn die Umfangsfläche des Grundkörpers mit den Streifenbürsten bestückt ist. Der Grund der Nuten steht dann in einem wechselnden Abstand zur Drehachse der Schleifscheibe. Sofern die Stirnfläche des Grundkörpers damit bestückt ist, steht der Grund der Nuten in wechselnden Abständen zur Stirnfläche. Dadurch können die Schleifgewebeabschnitte noch besser ausgenutzt werden, da es möglich ist, daß sie zuerst in die Nuten eingesetzt werden, deren Grund die größten Abstände zur Umfangsfläche bzw. zur Stirnfläche des Grundkörpers haben. Wenn die Schleifgewebeabschnitte um ein bestimmtes Maß abgenutzt sind, können sie dann in die Nuten eingesetzt werden, deren Grund im geringeren Abstand zur Umfangsfläche bzw. zur Stirnfläche liegt. Auf diese Weise lassen sich die Schleifgewebeabschnitte nahezu restlos aufbrauchen.The bottom of the grooves runs on different circles when the peripheral surface the base body is equipped with the strip brushes. The bottom of the grooves is there then at an alternating distance from the axis of rotation of the grinding wheel. If the End face of the base body is equipped with it, the bottom of the grooves is in alternating Distances to the face. This allows the abrasive cloth sections be exploited even better, since it is possible that they are inserted into the grooves first are, the reason the greatest distances from the circumferential surface or the end face of the main body. When the abrasive cloth sections to a certain Dimension are worn out, they can then be inserted into the grooves, the reason for which is the smaller distance from the peripheral surface or from the end surface. On in this way, the abrasive cloth sections can be used up almost completely.

Zweckmäßigerweise sind die Nuten nach einem Schema im Grundkörper angeordnet. So ist es vorteilhaft, wenn die Nuten mit den unterschiedlichen Tiefen wechselweise angeordnet sind, da dann die Möglichkeit besteht, daß die Winkelabstände zwischen den Nuten gegenüber den bekannten Ausführungen verkleinert werden, so daß auf dem Umfang bzw. auf der Stirnfläche die Anzahl der Streifenbürsten und der Schleifgewebeabschnitte erhöht wird. Dadurch wird ein wesentlich besseres Schleifergebnis erzielt.The grooves are expediently arranged in the base body according to a scheme. So it is advantageous if the grooves with the different depths alternate are arranged, since there is then the possibility that the angular distances be reduced between the grooves compared to the known designs, so that on the circumference or on the end face the number of strip brushes and Abrasive cloth sections is increased. This will make a much better one Grinding result achieved.

Es ist davon auszugehen, daß die Anzahl der Schleifgewebeabschnitte und der Streifenbürsten um ca. 40% erhöht werden kann. Außerdem können sie bei Bestückung der Stirnfläche des Grundkörpers strahlenförmig angeordnet werden, wodurch der Einsatz in Bearbeitungszentren erleichtert wird. Gemäß einer weiteren Ausführung ist vorgesehen, daß der gegenüber der Umfangs- oder der Stirnfläche des Grundkörpers vorstehende Bereich des Fußes in einem Bogen verläuft. Der an diesem Bereich befestigte Schleifgewebeabschnitt wird dann entsprechend geformt. Die Verformbarkeit der Streifenbürsten ist zwar begrenzt, jedoch verformen sich die Schleifgewebeabschnitte stärker. Durch diese Gestaltung wird der Einsatzbereich der Schleifbürsten erweitert, da die Gefahr einer Beschädigung des zu schleifenden Bauteiles wesentlich vermindert wird und der Verschleiß der Schleifgewebeabschnitte verringert wird, da die stoßartige Belastung beim Kontakt mit dem zu schleifenden Bauteil verringert wird. Der Bogen kann von der Krümmung her und auch vom Krümmungsverlauf her beliebig gestaltet werden. Vorzugsweise ist er jedoch so geformt, daß die äußeren Ränder in einem größeren Abstand zur zugeordneten Streifenbürste stehen als der mittlere Bereich. Unabhängig von der Gestaltung der Schleifbürste sind die Schleifgewebeabschnitte zumindest im äußeren, dem flexiblen Fuß abgewandten Bereich mit Längseinschnitten versehen.It can be assumed that the number of abrasive cloth sections and the Strip brushes can be increased by approximately 40%. You can also go to The end face of the base body can be arranged in a radiation pattern, which facilitates use in machining centers. According to another Execution is provided that the opposite of the circumferential or the end face of the base protruding area of the foot runs in an arc. The one abrasive cloth section attached to this area is then shaped accordingly. The deformability of the strip brushes is limited, but they deform Abrasive cloth sections stronger. The design of the Grinding brushes expanded because of the risk of damage to the grinded Component is significantly reduced and the wear of the abrasive cloth sections is reduced because the impact load on contact with the grinding Component is reduced. The bow can be from the curvature and also from Curvature can be designed arbitrarily. However, it is preferably shaped so that the outer edges at a greater distance from the assigned strip brush stand as the middle area. Regardless of the design of the Abrasive brush are the abrasive cloth sections at least in the outer, the flexible Provide longitudinal incisions in the area facing away from the foot.

Dio erfindungsgamäßen Schleifbürsten werden auch zur Bearbeitung von Profilleisfen der unterschiedlichsten Querschnitte verwendet. Die Gestaltung der Streifenbürsten und der Schleifgewebeabschnitte richtet sich dann nach den Querschnitten der Profilleisten. Für eine derartige Ausführung ist vorgesehen, daß der flexible Fuß sich bis in den Bereich des äußeren freien Randes der zugehörigen Schleifbürste erstreckt, und daß der Schleifgewebeabschnitt an dem äußeren freien Rand des flexiblen Fußes festgelegt ist. Da bei dieser Ausführung die äußere Kontur der Streifenbürste und die daran angepaßte Kontur des Schleifgewebeabschnittes auf den Querschnitt einer Profilleiste bezogen bzw. daran angepaßt ist, ist bei dieser Ausführung vorgesehen, daß zwischen der Borstenreihe der Streifenbürste und dem flexiblen Fuß ein vorzugsweise an der Borstenreihe festgelegtes Stützkissen vorgesehen ist. Dieses Stützkissen liegt dann in Umlaufrichtung der Schleifbürste gesehen, vor der Streifenbürste. Dadurch wird die Schleifwirkung erhöht, da sich das Stützkissen nicht so stark verformen läßt wie die Streifenbürste.The inventive abrasive brushes are also used for machining Profiling of different cross sections used. The design of the Strip brushes and the abrasive cloth sections then depend on the Cross sections of the profile strips. For such an embodiment it is provided that the flexible foot extends into the area of the outer free edge of the associated Abrasive brush extends, and that the abrasive cloth section on the outer free Edge of the flexible foot is set. Because in this version the outer contour the strip brush and the contour of the abrasive cloth section adapted to it is related to the cross section of a profile strip or is adapted to this Execution provided that between the bristle row of the strip brush and the flexible foot a support cushion, preferably fixed to the row of bristles is provided. This support cushion is then in the direction of rotation of the grinding brush seen in front of the strip brush. This increases the grinding effect, since the Does not deform the support cushion as much as the strip brush.

Zweckmäßigerweise besteht das Stützkissen aus Moosgummi oder einem ähnlichen elastisch verformbaren Material. Unabhängig von der Ausgestaltung der Schleifbürste können in besonders vorteilhafter Weise die Schleifgewebeabschnitte und die Streifenbürsten als Profilelemente ausgebildet sein, um sie an die unterschiedlichen Querschnitte der zu bearbeitenden Gegenstände anzupassen.The support cushion is expediently made of foam rubber or the like elastically deformable material. Regardless of the design of the The abrasive brush can particularly advantageously remove the abrasive cloth sections and the strip brushes can be designed as profile elements to attach them to the adapt different cross-sections of the objects to be processed.

Anhand der beiliegenden Zeichnungen wird die Erfindung noch näher erläutert.The invention is explained in more detail with reference to the accompanying drawings.

Es zeigen:

Figur 1
eine erfindungsgemäße Schleifbürste, bei der die Umfangsfläche des Grundkörpers mit Streifenbürsten bestückt ist,
Figur 2
eine erfindungsgemäße Schleifbürste, bei der eine ringförmige Stirnfläche des Grundkörpers mit Schleifbürsten bestückt ist,
Figur 3
die Nuten zur Aufnahme der Streifenbürsten und der Schleifgewebeabschnitte als Einzelheit, jedoch in einer Abwicklung gezeichnet,
Figur 4
einen Schleifgewebeabschnitt mit dem elastischen Fuß als Einzelheit in perspektivischer Darstellung.
Figur 5
die Streifenbürste mit einem daran festgelegten Stützkissen und den flexiblen Fuß mit dem daran festgelegten Schleifgewebeabschnitt einer weiteren Ausführungsform einer erfindungsgemäßen Schleifbürste in sprengbildlicher Darstellung.
Show it:
Figure 1
an abrasive brush according to the invention, in which the peripheral surface of the base body is equipped with strip brushes,
Figure 2
an abrasive brush according to the invention, in which an annular end face of the base body is equipped with abrasive brushes,
Figure 3
the grooves for receiving the strip brushes and the abrasive cloth sections as a detail, but drawn in one development,
Figure 4
an abrasive cloth section with the elastic foot as a detail in a perspective view.
Figure 5
the strip brush with a support pad attached to it and the flexible foot with the attached abrasive cloth section of a further embodiment of an abrasive brush according to the invention in an exploded view.

Die in den Figuren 1 und 2 dargestellten Schleifbürsten 10 bestehen im wesentlichen aus einem metallischen Grundkörper 11, einer Vielzahl von Streifenbürsten 12 und einer entsprechenden Stückzahl von Schleifgewebeabschnitten 13, die zwischen den Streifenbürsten 12 angeordnet sind, so daß die in Drehrichtung hinter den Schleifgewebeabschnitten 13 liegenden Streifenbüsten 12 der Abstützung dienen. Ein Vergleich der Figuren 1 und 2 zeigt, daß der Außendurchmesser des metallischen Grundkörpers 11 bei der stirnseitigen Anordnung der Streifenbürsten 12 deutlich größer ist als bei der Anordnung auf der Umfangsfläche. Die Figuren zeigen außerdem, daß die äußeren, freien Enden der Schleifgewebeabschnitte 13 ein klein wenig gegenüber den Enden der Streifenbürsten 12 vorstehen.The grinding brushes 10 shown in FIGS. 1 and 2 essentially exist from a metallic base body 11, a plurality of strip brushes 12 and a corresponding number of abrasive cloth sections 13 between the Strip brushes 12 are arranged so that in the direction of rotation behind the abrasive cloth sections 13 lying strip busts 12 are used for support. A comparison of Figures 1 and 2 shows that the outer diameter of the metallic Base body 11 in the end arrangement of the strip brushes 12 significantly larger than with the arrangement on the peripheral surface. The figures also show that the outer, free ends of the abrasive cloth sections 13 are slightly opposite protrude the ends of the strip brushes 12.

Die Figur 3 zeigt eine Möglichkeit der Anordnung von Nuten 14 zur Aufnahme der Streifenbürsten 12. Bei der Ausführung nach der Figur 1 gehen diese Nuten von der Umfangsfläche des Grundkörpers 11 aus und erstrecken sich über dessen gesamte Breite. Bei der Ausführung nach der Figur 2 ist eine stirnseitige Ringfläche mit den Nuten 14 versehen. Diese gehen von der Stirnfläche aus.FIG. 3 shows one possibility of arranging grooves 14 for receiving the Strip brushes 12. In the embodiment according to FIG. 1, these grooves extend from the Circumferential surface of the base body 11 and extend over its entire Width. In the embodiment according to FIG. 2, an end face with the Grooves 14 provided. These start from the face.

Bei der Ausführung nach der Figur 3 ist die Umfangsfläche des Grundkörpers 11 gemäß der Ausführung nach der Figur 1 und die ringförmige Stirnfläche bei der Ausführung nach der Figur 2 durch das Bezugszeichen 15 gekennzeichnet. Bei dieser Ausführung sind die Nuten 14 in zwei verschiedenen Tiefen wechselweise ausgeführt, d. h. bei der Ausführung nach der Figur 1 liegt der Grund der Nuten auf zwei verschiedenen Durchmessern, während bei der Ausführung nach der Figur 2 der Grund der Nuten 14 in zwei Ebenen zur ringförmigen Stirnfläche steht. Im dargestellten Ausführungsbeispiel sind die Tiefen der Nuten 14 mit den größeren Abständen des Grundes zur Umfangs- oder Stirnfläche 15 doppelt so tief wie die anderen Nuten. Im Gegensatz zu der dargestellten Ausführung können die Nuten 14 auch in mehr als zwei unterschiedlichen Tiefen in den Grundkörper 11 eingearbeitet sein. Es ergibt sich aus der Figur 3, daß die in den Nuten 14 mit der größeren Tiefe festgelegten Streifenbürsten und Schleifgewebeabschnitte 13 nach einer gewissen Abnutzung in die Nuten 14 mit der geringeren Tiefe eingesetzt werden können, so daß dann die volle Schleifwirkung wieder hergestellt ist.In the embodiment according to FIG. 3, the peripheral surface of the base body 11 is in accordance with the embodiment of Figure 1 and the annular end face in the Execution according to FIG. 2 characterized by reference number 15. At In this embodiment, the grooves 14 are alternating in two different depths executed, d. H. in the embodiment according to FIG. 1, the bottom of the grooves lies on two different diameters, while in the embodiment according to FIG. 2 the bottom of the grooves 14 is in two planes to the annular end face. In the illustrated Embodiment are the depths of the grooves 14 with the larger distances the bottom of the peripheral or end face 15 twice as deep as the others Grooves. In contrast to the embodiment shown, the grooves 14 can also be in more than two different depths can be incorporated into the base body 11. It it follows from FIG. 3 that those defined in the grooves 14 with the greater depth Strip brushes and abrasive cloth sections 13 after a certain Wear can be used in the grooves 14 with the smaller depth, so that the full grinding effect is then restored.

Im dargestellten Ausführungsbeispiel sind die Nuten 14 mit der geringeren Tiefe schwalbenschwanzförmig ausgebildet. Bei den Nuten 14 mit der größeren Tiefe ist der bis an den Grund dieser Nuten heranragende Teil viereckig und daran schließt sich dann wieder der schwalbenschwanzförmige Teil an, so daß die eingesteckten Streifenbürsten formschlüssig darin festgelegt sind. Im Gegensatz zu der dargestellten Ausführung könnten die Nuten auch T-förmig gestaltet sein.In the illustrated embodiment, the grooves 14 are of less depth dovetail-shaped. The grooves 14 with the greater depth is the part which extends to the bottom of these grooves is square and adjoins it then the dovetail-shaped part again, so that the inserted Strip brushes are positively fixed in it. In contrast to the one shown Execution, the grooves could also be T-shaped.

Die Figur 4 zeigt, daß die Schleifgewebeabschnitte 13 an einem flexiblen Fuß 16 vorzugsweise durch Klebung befestigt sind. Dieser Fuß 16 ist im unteren, dem Schleifgewebeabschnitt 13 abgewandten Bereich winkelförmig ausgebildet. Dieser untere Bereich wird in die schwalbenschwanzförmige Nut 14 eingesteckt und umgreift das Klemmprofil 17, welches die einzelnen Borsten der Streifenbürsten 12 zusammenhält. Im Gegensatz zur dargestellten Ausführung könnte der untere Bereich des flexiblen Fußes 16 auch U-förmig ausgebildet sein.Figure 4 shows that the abrasive cloth sections 13 on a flexible foot 16 are preferred are attached by gluing. This foot 16 is in the lower, the abrasive cloth section 13 remote area formed angled. This lower one The area is inserted into the dovetail-shaped groove 14 and engages around it Clamping profile 17, which holds the individual bristles of the strip brushes 12 together. In contrast to the embodiment shown, the lower area of the flexible foot 16 may also be U-shaped.

Der gegenüber dem Grundkörper 11 vorstehende Bereich des flexiblen Fußes 16 bildet den Verbindungsbereich zum Schleifgewebeabschnitt 13. Der freie Rand des flexiblen Fußes 16 verläuft in einem auf den Grundkörper 11 gerichteten Bogen. Im dargestellten Ausführungsbeispiel ist der gegenüber dem Grundkörper 11 vorstehende Bereich des flexiblen Fußes 16 außerdem gegenüber den Streifenbürsten 12 derart gewölbt, daß die äußeren Ränder in einem größeren Abstand zur in Drehrichtung dahinter liegenden Streifenbürste 12 stehen als der mittlere Bereich. Die Krümmung könnte jedoch auch entgegengesetzt sein. Durch den gewölbten Bereich wird auch der daran befestigte Schleifgewebeabschnitt 13 verformt. Diese Ausführung bietet beim Schleifen Vorteile, da die Gefahr einer Beschädigung des zu schleifenden Werkstückes deutlich vermindert wird.The area of the flexible foot 16 protruding from the base body 11 forms the connection area to the abrasive cloth section 13. The free edge of the flexible foot 16 runs in an arc directed towards the base body 11. in the The illustrated embodiment is the one protruding from the base body 11 Area of the flexible foot 16 also opposite the strip brushes 12 arched so that the outer edges at a greater distance from the direction of rotation strip brush 12 lying behind stand as the central region. The However, curvature could also be opposite. Through the arched area the abrasive cloth section 13 attached to it is also deformed. This Execution offers advantages when grinding, since there is a risk of damaging the grinding workpiece is significantly reduced.

Die Figur 5 zeigt die Streifenbürste 12 und den flexiblen Fuß 16 und den daran festgelegten Schleifgewebeabschnitt 13 für eine weitere Ausführungsform der Schleifbürste 10. Diese Ausführungsform ist besonders zum Bearbeiten von Profilleisten geeignet, da die äußere Kontur der Streifenbürste 12 und somit auch die Kontur des Schleifgewebeabschnittes 13 an die Querschnittsform der zu bearbeitenden Leisten angepaßt ist. Die Kontur der Streifenbürste 12 könnte stufen-, bogenförmig oder dergleichen sein. FIG. 5 shows the strip brush 12 and the flexible foot 16 and the abrasive cloth section 13 attached to it for a further embodiment of the abrasive brush 10. This embodiment is particularly suitable for processing profile strips, since the outer contour of the strip brush 12 and thus also the contour of the abrasive cloth section 13 is adapted to the cross-sectional shape of the strips to be processed. The contour of the strip brush 12 could be step -shaped, arc-shaped or the like.

Zwischen dem flexiblen Fuß 16 und der Borstenreihe der Streifenbürste 12 liegt ein Stützkissen 18, welches aus Moosgummi gefertigt ist. Das Stützkissen 18 erstreckt sich über die gesamte Länge der Borstenreihe der Streifenbürste 12. Im dargestellten Ausführungsbeispiel ist es auch daran festgeklebt.Between the flexible foot 16 and the row of bristles of the strip brush 12 is a Support cushion 18, which is made of foam rubber. The support cushion 18 extends extends over the entire length of the row of bristles of the strip brush 12. In the illustrated Embodiment it is also glued to it.

Der flexible Fuß 16 umgreift im dargestellten Ausführungsbeispiel in der zusammengesteckten Stellung das Stützkissen 18. Deshalb ist der obere freie Rand des flexiblen Fußes 16 bis in den Bereich des freien Randes der Borstenreihe gezogen. Der dem Klemmprofil 17 abgewandte Bereich übergreift das Stützkissen 18. Der Schleifgewebeabschnitt 13 ist an dem übergreifenden Rand des flexiblen Fußes festgelegt. Auch die seitlichen Wände sind von dem flexiblen Fuß 16 umgriffen, der im dargestellen Ausführungsbeispiel ein an die Form des Stützkissens 18 angepaßter Formkörper ist.The flexible foot 16 encompasses in the illustrated embodiment in the assembled position the support cushion 18. That is why the upper free edge of the flexible foot 16 into the area of the free edge of the row of bristles drawn. The area facing away from the clamping profile 17 engages over the support cushion 18. The abrasive cloth section 13 is at the overlapping edge of the flexible Foot set. The side walls are also from the flexible foot 16 encompassed one in the illustrated embodiment to the shape of the support pillow 18 adapted molded body is.

Es ergibt sich aus der Figur 5, daß das Stützkissen 18, in Drehrichtung der Schleifbürste 10 gesehen, vor der Borstenreihe der Streifenbürste 12 liegt.It follows from Figure 5 that the support cushion 18, in the direction of rotation Grinding brush 10 seen, is in front of the bristle row of the strip brush 12.

Es ergibt sich, daß gegenüber den bekannten Schleifbürsten der Materialanteil für das Schleifgewebe deutlich herabgesetzt wird. Außerdem kann es nahezu vollständig verbraucht werden, bedingt durch die unterschiedlichen Tiefen der Nuten 14.It follows that the material proportion for the known abrasive brushes the abrasive cloth is significantly reduced. It can also be almost complete are consumed due to the different depths of the grooves 14.

Die Erfindung ist nicht auf die dargestellten Ausführungsbeispiele beschränkt. Wesentlich ist die Anordnung der Schleifgewebeabschnitte an den flexiblen Füßen 16, die zusammen mit den Klemmprofilen 17 der Streifenbürsten 12 in den Nuten 14 festgesetzt sind.The invention is not restricted to the exemplary embodiments shown. Essential is the arrangement of the abrasive cloth sections on the flexible feet 16, which together with the clamping profiles 17 of the strip brushes 12 in the grooves 14 are fixed.

Claims (12)

Schleifbürste mit einem metallischen Grundkörper, der umfangs- oder stirnseitig im Winkelabstand zueinander stehende Nuten aufweist, in die Klemmprofile von Streifenbürsten form- und/oder kraftschlüssig, jedoch auswechselbar festgesetzt sind, und daß zwischen den Streifenbürsten sich daran abstützende, am Grundkörper festgelegte Schleifgewebeabschnitte vorgesehen sind dadurch gekennzeichnet, daß die Schleifgewebeabschnitte (13) an flexiblen Füßen (16) festgelegt sind, die zusammen mit den Klemmpropfilen (17) der Streifenbürsten (12) in den Nuten (14) eingespannt sind.Abrasive brush with a metallic base body, which has circumferential or mutually angular grooves in the clamping profiles of strip brushes are positively and / or non-positively, but interchangeably fixed, and that abutting, fixed to the base body abrasive fabric sections are provided between the strip brushes since characterized in that the abrasive cloth sections (13) are fixed to flexible feet (16) which are clamped together with the clamping props (17) of the strip brushes (12) in the grooves (14). Schleifbürste nach Anspruch 1, dadurch gekennzeichnet, daß der Verbindungsbereich zwischen einem flexiblen Fuß (16) und dem Schweifgewebeabschnitt (13) außerhalb des Grundkörpers (11) der Schleifbürste (10) liegt.Abrasive brush according to claim 1, characterized in that the connection area between a flexible foot (16) and the tail tissue section (13) lies outside the base body (11) of the abrasive brush (10). Schleifbürste nach Anspruch 1, dadurch gekennzeichnet, daß zumindest der eingespannte Bereich des flexiblen Fußes (16) winkel- oder U-förmig ausgebildet ist und das Klemmprofil (17) entsprechend umgreift.Grinding brush according to claim 1, characterized in that at least the clamped area of the flexible foot (16) is of an angular or U-shaped design and encompasses the clamping profile (17) accordingly. Schleifbürste nach Anspruch 1, dadurch gekennzeichnet, daß der Grund der Nuten (14) auf wenigstens zwei unterschiedlichen Kreisen oder Ebenen verläuft.Abrasive brush according to claim 1, characterized in that the base of the grooves (14) runs on at least two different circles or levels. Schleifbürste nach Anspruch 4, dadurch gekennzeichnet, daß die Nuten (14) mit unterschiedlichen Tiefen wechselweise im Grundkörper (11) der Schleifbürste (10) angeordnet sind. Abrasive brush according to claim 4, characterized in that the grooves (14) with different depths are alternately arranged in the base body (11) of the abrasive brush (10). Schleifbürste nach Anspruch 4 oder 5, bei der eine ringförmige Stirnfläche mit Nuten zur Aufnahme der Streifenbürsten und der Schleifgewebeabschnitte versehen ist, dadurch gekennzeichnet, daß die Nuten (14) strahlenförmig angeordnet sind.Abrasive brush according to Claim 4 or 5, in which an annular end face is provided with grooves for receiving the strip brushes and the abrasive cloth sections, characterized in that the grooves (14) are arranged in a radial manner. Schleifbürste nach einem oder mehreren der vorhergehenden Ansprüche 1-6, dadurch gekennzeichnet, daß der gegen der Umfangs- oder der Stirnfläche (15) des Grundkörpers (11) vorstehende Bereich des Fußes in einem Bogen verläuft.Abrasive brush according to one or more of the preceding claims 1-6, characterized in that the region of the foot projecting against the circumferential or end face (15) of the base body (11) runs in an arc. Schleifbürste nach Anspruch 7, dadurch gekennzeichnet, daß der überstehende Bereich des Fußes (16) derart bogenförmig gestaltet ist, daß die äußeren Ränder in einem größeren Abstand zur, bezogen auf die Umlaufrichtung der Schleifbürste, nachfolgenden Streifenbürste (12) stehen als der mittlere Bereich.Abrasive brush according to Claim 7, characterized in that the projecting area of the foot (16) is designed in an arcuate manner in such a way that the outer edges are at a greater distance from the strip brush (12) following in relation to the direction of rotation of the abrasive brush than the central area. Schleifbürste nach Anspruch 1, dadurch gekennzeichnet, daß zwischen der Borstenreihe der Streifenbürste (12) und dem flexiblen Fuß (16) ein vorzugsweise an der Borstenreihe festgelegtes Stützkissen (18) vorgesehen ist.Abrasive brush according to claim 1, characterized in that between the row of bristles of the strip brush (12) and the flexible foot (16) there is provided a support cushion (18) preferably fixed to the row of bristles. Schleifbürste nach Anspruch 9, dadurch gekennzeichnet, daß der flexible Fuß (16) sich bis in den Bereich des äußeren freien Randes der zugehörigen Streifenbürste (12) erstreckt und daß der Schleifgewebeabschnitt an dem äußeren freien Rand des flexiblen Fußes (16) festgelegt ist, der vorzugsweise die dem Klemmprofil (17) gegenüberliegende Fläche des Stützkissens (18) übergreift.Abrasive brush according to Claim 9, characterized in that the flexible foot (16) extends into the region of the outer free edge of the associated strip brush (12) and in that the abrasive cloth section is fixed to the outer free edge of the flexible foot (16) which preferably overlaps the surface of the support cushion (18) opposite the clamping profile (17). Schleifbürste nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß das Stützkissen (18) aus Moosgummi oder dergleichen besteht.Abrasive brush according to claim 9 or 10, characterized in that the support cushion (18) consists of foam rubber or the like. Schleifbürste nach einem oder mehreren der vorhergehenden Ansprüche 1-11, dadurch gekennzeichnet, daß die Schleifgewebeabschnitte (13) und die Streifenbürsten (12) als Profilelemente ausgebildet sind.Abrasive brush according to one or more of the preceding claims 1-11, characterized in that the abrasive cloth sections (13) and the strip brushes (12) are designed as profile elements.
EP99100232A 1998-03-19 1999-01-08 Grinding brush Expired - Lifetime EP0943400B1 (en)

Applications Claiming Priority (2)

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DE29804936U 1998-03-19
DE29804936U DE29804936U1 (en) 1998-03-19 1998-03-19 Sanding brush

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EP0943400A2 true EP0943400A2 (en) 1999-09-22
EP0943400A3 EP0943400A3 (en) 2001-10-31
EP0943400B1 EP0943400B1 (en) 2004-06-16

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US (1) US6217431B1 (en)
EP (1) EP0943400B1 (en)
AT (1) ATE269192T1 (en)
DE (2) DE29804936U1 (en)
DK (1) DK0943400T3 (en)
ES (1) ES2219936T3 (en)
PT (1) PT943400E (en)

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Also Published As

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US6217431B1 (en) 2001-04-17
EP0943400B1 (en) 2004-06-16
PT943400E (en) 2004-10-29
ATE269192T1 (en) 2004-07-15
DE29804936U1 (en) 1998-07-09
ES2219936T3 (en) 2004-12-01
DE59909713D1 (en) 2004-07-22
DK0943400T3 (en) 2004-08-30
EP0943400A3 (en) 2001-10-31

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