EP2495074B1 - Device for grinding and/or brushing objects - Google Patents
Device for grinding and/or brushing objects Download PDFInfo
- Publication number
- EP2495074B1 EP2495074B1 EP12000897.4A EP12000897A EP2495074B1 EP 2495074 B1 EP2495074 B1 EP 2495074B1 EP 12000897 A EP12000897 A EP 12000897A EP 2495074 B1 EP2495074 B1 EP 2495074B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- brush
- carrier
- grinding
- hollow
- housing
- 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.)
- Not-in-force
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/005—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents using brushes
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B13/00—Brushes with driven brush bodies or carriers
- A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B13/00—Brushes with driven brush bodies or carriers
- A46B13/001—Cylindrical or annular brush bodies
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/30—Brushes for cleaning or polishing
- A46B2200/3093—Brush with abrasive properties, e.g. wire bristles
Definitions
- the invention relates to a device for grinding and / or brushing objects according to the preamble of claim 1.
- a device of the type mentioned is, for example, from the WO 2008/077398 A1 known.
- Object of the present invention is to develop a device for grinding and / or brushing objects of the type mentioned in such a way that grinding and brushing processes are more efficient and largely automated.
- the active profile of at least one brush can be changed during operation of the device.
- changes in the geometry of the surface area just worked in the profile of action of the brush can be continuously reproduced, so that even with greatly changing surface geometries always a good work efficiency can be achieved.
- the brush of the device according to the invention has a hollow carrier made of elastic material, which carries a trimming of abrasives and / or bristles and in whose interior an adjusting device is arranged, with which the carrier is deformable.
- Such adjustment can be mechanical and attack only point or line on the elastic carrier.
- a preferred way to change the profile of action of the brush during operation is that on the inside of the hollow support a plurality of levers is articulated, whose other end portions are pivotally connected to sockets and the sockets from the outside by means of actuating rods along the axis of the Carrier are displaced.
- a brush with a circular cylindrical brush body which is arranged in the axis of the hollow elastic support and distributed along its longitudinal extent comprises a plurality of externally actuable servomotors, which have radially outwardly facing actuating rods whose radially outer ends are fixed to the inner circumferential surface of the carrier. Even so, it is easy to exert large radial forces on the brush body.
- FIGS. 1 to 3 With reference to which the principle of the invention is shown, but whose objects are not covered by the claims.
- a device for grinding and cleaning is shown and indicated generally by the reference numeral 1.
- the item 2 to be processed is in FIG. 2 shown only schematically. It may be, for example, the rotor blade of a wind turbine.
- the device 1 is stationary; the object 2 is passed below the device 1 at a defined distance in the direction of the arrow 3.
- a kinematic reversal of these conditions is possible by the device 1 is made movable, for example, guided by a robot, while the workpiece 2 stands still.
- the decisive factor is only a relative speed between the device 1 and the object 2.
- the device 1 has a housing 4, which in turn comprises two sub-housings 4a and 4b which are circular-arc-shaped in cross-section.
- the lower housing 4a and 4b are rigidly interconnected by a strut 5 and a suction channel 6 and each contain a working space 50 and 51.
- the suction channel 6 has two branches 6a, 6b, respectively in the working chamber 50 and 51 of a lower housing 4a and 4b, respectively.
- the suction channel 6 is connectable to a suction device, not shown, for example, an industrial vacuum cleaner.
- the lower housings 4a, 4b of the housing 4 are cut off in a secant manner and partially covered by sheets 7, 8, 9 which run approximately parallel to the surface of the workpiece 2 and which in the region of each lower housing 4a, 4b respectively have a slot 10a or 10a 10b.
- a brush 11 and 12 is rotatably supported in a manner described below.
- the two brushes 11, 12 differ in their function: While the brush 12, which is hit by the workpiece 2 during its movement in the feed direction 3 first, designed for grinding the workpiece surface, the brush 11, which is downstream of this process, the Clean or Brushing the pre-ground surface.
- the first brush 12 flexible abrasives 13 which may be commercially available abrasive segments with corundum or Diamantbesatz and may optionally be deposited with brushes for support. These abrasives 13 are attached to a brush body 14 with its radially inner edge and shown in the drawing only very schematically. They protrude through the slot 10b therethrough and thus touch the surface of the workpiece. 2
- the brush 12 is not disposed coaxially with the lower case 4b; Rather, its axis relative to the axis of the lower housing 4b against the feed direction 3, in FIG. 2 so to the right, offset.
- the cleaning brush 11 carries according to their function bristles 15 of natural or synthetic fibers, which are fixed at its radially inner end to a brush body 16.
- the bristles 15 project through the slit 10a and abut against the surface of the machined object 2. Also, the axis of the brush 11 is offset from the axis of the lower housing 4a parallel to the feed direction 3.
- Ionization devices 60, 61 protrude into the working spaces 50, 51 and serve to ionize the particles rubbed by the brushes 11, 12 in a known manner.
- the axis 17 of the brush 12 is mounted on the housing 4 in fixed bearings, so can not change their orientation and position relative to the housing 4. It lets itself through together with the brush 12 a motor 19 in rotation, the in FIG. 1 is shown schematically.
- the axis 18 of the cleaning brush 11 is different. It is mounted at its opposite ends in each case in a bearing device 20, the vertical position of which can be changed relative to the housing 4 by an adjusting device 21.
- the latter may be, for example, a hydraulic or pneumatic cylinder.
- the storage device 20 has, in particular the FIG. 1 it can be seen, two opposite, vertical lateral edges 20a, 20b, which are displaceable in correspondingly profiled guide rails 22 which are fixed to the housing 4.
- the vertical position of the bearing device 20 on opposite sides of the housing 4 can be set differently, so that, for example, results in an inclined position of the brush 11, as in FIG. 3 is shown.
- the ends of the shaft 11 are mounted in ball bearings 23, the outer ring has a convex outer surface. With this convex outer surface, the ball bearings 23 abut against a corresponding concave surface of the bearing device 20.
- the brush 11 is driven via its axis 18 by a motor 24, which is also shown only schematically in the drawing and can be operated independently of the motor 19, which is associated with the brush 12.
- the article 2 is passed under the stationary device 1 in the direction of arrow 3.
- the surface of the article 2 strikes first on the abrasive 13 of the brush 12 and this is ground intensively.
- the grinding dust is removed via the branch 6 b of the suction channel 6.
- the freshly ground areas reach the further movement of the article 2 in the region of the bristles 15 of the cleaning brush 11, which protrude through the slot 10 a.
- the surface of the objects 2 is usually not even and / or differently inclined at different locations.
- the engagement of the bristles 15 of the cleaning brush 11 can be adapted to this contour of the object, so that the brushing efficiency is improved.
- the cross-section of the brush remains constant over its entire axial dimension, regardless of the position of the support elements.
- the active profile changes in the axial direction.
- this is not fixed, but adjustable, possibly also during operation of the device.
- the device can be readjusted for use on differently shaped objects.
- it is possible to adapt the profile of action even when processing a single object, when the shape of its surface area, which is just in engagement with the bristles of the brush, during the relative movement between the brush and the object changes.
- the brush body 616 is hollow.
- It comprises two circular rigid end walls 629, to each of which an outwardly projecting pin 630a, 630b is coaxially formed.
- the two end walls 629a, 629b are interconnected near their outer periphery by a hollow cylindrical support 626 made of a suitable elastic material.
- end portion of the actuating rods 635, 636 are each equipped with a driver 639, 640, which extends in the radial direction through a correspondingly sized opening 641 and 642 of the sleeve 632 and with the outwardly projecting portion with a form-fitting a socket 633 and 634 is connected.
- levers 643a and 643b are hinged at diametrically opposite locations two levers 643a and 643b, which span a plane. With their outer ends, the levers 643a, 643b are pivotally connected to the inner circumferential surface of the carrier 626.
- the pin 630b in the FIGS. 4 to 6 The right end face 629b of the brush body 616 is in rotary connection with the drive motor of the device 601.
- the action profile of the brush 611 can be adapted to the geometry of the machined object in the following manner: If the actuating rod 635 is displaced in the axial direction with the aid of the adjusting device 637, the bushing 633, which is connected in a motion-locking manner with the actuating rod 635, moves in the same direction Direction on the sleeve 632. This has a pivoting of the lever 643a, 643b result. In FIG. 5 has been the actuating rod 635 with respect to the position of FIG. 4 shifted to the right, so that the levers 643a, 643b have made steeper and, since their length is fixed, the elastic support 626 has bulged at these locations and so has increased the effective radius of the brush 611 in this area.
- FIGS. 6 and 7 are further possible deformations of the elastic support 626 shown, which can be achieved in an analogous manner by moving the actuating rods 635, 636 by the servo motors 637, 638.
- a further embodiment of a brush 711 is schematically in the FIGS. 8 and 9 shown.
- This brush 711 has a substantially circular-cylindrical brush body 716.
- two servomotors 745 are mounted on opposite points of the peripheral wall.
- the outwardly projecting actuating rods of these actuators 745 are secured to the inner circumferential surface of a resilient, hollow cylindrical support 726, the opposite, circular edges are not interconnected in this case.
- the actuating rods of the servomotors 745 can be extended or retracted in a suitable manner, as need not be described in detail.
- the servomotors 745 may be electrically operated or may also include hydraulic or pneumatic cylinders. In what way with the help of these servomotors 745, the action profile of the brush 711 can be changed, can the FIGS. 8 and 9 remove.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Brushes (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Schleifen und/ oder Bürsten von Gegenständen nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for grinding and / or brushing objects according to the preamble of claim 1.
In vielen Industriebereichen, insbesondere aber im Bereich der Windkraft, des Fahrzeugbaus sowie der Luft- und Raumfahrtindustrie, sind viele Behandlungsschritte zur Erzielung einer hochwertigen Oberfläche auf einem vorhergehenden Schleif- und Reinigungsprozess angewiesen. Diese Schleif- und Reinigungsprozesse sind in der Vergangenheit nur schwer und unzureichend automatisierbar gewesen. Schleifen und Reinigen durch Bürsten wurden dabei im Wesentlichen manuell, allenfalls teilweise automatisiert, durch getrennte Vorrichtungen durchgeführt. Damit sind verständlicherweise verhältnismäßig hohe Kosten verbunden.In many industrial sectors, but especially in the field of wind power, vehicle construction and the aerospace industry, many treatment steps to achieve a high-quality surface on a previous grinding and cleaning process are dependent. These grinding and cleaning processes have in the past been difficult and insufficiently automated. Grinding and cleaning by brushing were carried out essentially manually, at best partially automated, by separate devices. This understandably involves relatively high costs.
Eine Vorrichtung der eingangs genannten Art ist beispielsweise aus der
Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung zum Schleifen und/oder Bürsten von Gegenständen der eingangs genannten Art derart fortzubilden, dass Schleif- und Bürstprozesse effizienter und weitgehend automatisierbar sind.Object of the present invention is to develop a device for grinding and / or brushing objects of the type mentioned in such a way that grinding and brushing processes are more efficient and largely automated.
Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung mit den im Anspruch 1 angegebenen Merkmalen gelöst.This object is achieved by a device having the features specified in claim 1.
Unter "Wirkprofil" im engeren Sinne wird hier die Gestalt der Fläche verstanden, auf welcher die Spitzen der Schleifmittel oder Borsten der Bürste bei der Drehung der Bürste, also unter dem Einfluss der Fliehkraft liegen. Ein "effektives" Wirkprofil ist das Wirkprofil, das der bearbeitete Gegenstand "spürt", das also von dem "Wirkprofil" im engeren Sinne und von dessen relativer Lage zum Gegenstand beim "Angriff" der Bürste abhängt. Durch die Anpassung dieses effektiven Wirkprofils an die Geometrie des Gegenstandes, und zwar an dessen gerade von der Bürste bearbeitetem Bereich, lässt sich die Effizienz der Bürste deutlich verbessern; auch deren Verschleissverhalten ist günstiger, da das Werkstück überall etwa gleich tief in den Schleifmittel- und/oder Borstenbesatz eintaucht. Mit der erfindungsgemäßen Vorrichtung lassen sich im Gegensatz zur manuellen Bearbeitung reproduktionssichere Ergebnisse liefern. Dass die Personalkosten geringer ausfallen, leuchtet unmittelbar ein. Darüber hinaus ist mit der erfindungsgemäßen Vorrichtung auch eine Reduzierung der Verbrauchsmaterialkosten verbunden.Under "profile of action" in the strict sense, here is the shape understood the surface on which the tips of the abrasive or bristles of the brush in the rotation of the brush, so under the influence of centrifugal force. An "effective" profile of action is the profile of action that "feels" the machined object, which thus depends on the "profile of action" in the strict sense and its relative position to the object during the "attack" of the brush. By adapting this effective profile of action to the geometry of the article, specifically on the area just worked by the brush, the efficiency of the brush can be significantly improved; also their wear behavior is more favorable, since the workpiece is immersed everywhere about the same depth in the abrasive and / or bristle stocking. With the device according to the invention, in contrast to manual processing, reproduction-proof results can be obtained. The fact that staff costs are lower, is immediately obvious. In addition, the device according to the invention also entails a reduction in consumable costs.
Erfindungsgemäß ist das Wirkprofil mindestens einer Bürste während des Betriebs der Vorrichtung veränderbar. In diesem Falle können laufend Veränderungen der Geometrie des gerade bearbeiteten Oberflächenbereichs im Wirkprofil der Bürste nachvollzogen werden, so dass auch bei stark sich ändernden Oberflächengeometrien stets eine gute Arbeitseffizienz erreichbar ist.According to the invention, the active profile of at least one brush can be changed during operation of the device. In this case, changes in the geometry of the surface area just worked in the profile of action of the brush can be continuously reproduced, so that even with greatly changing surface geometries always a good work efficiency can be achieved.
Hierzu weist die Bürste der erfindungsgemäßen Vorrichtung einen aus elastischem Material gefertigten hohlen Träger auf, der einen Besatz aus Schleifmitteln und/oder Borsten trägt und in dessen Innenraum eine Verstelleinrichtung angeordnet ist, mit welcher der Träger verformbar ist. Eine derartige Verstelleinrichtung kann mechanisch sein und nur punktoder linienhaft an dem elastischen Träger angreifen. Denkbar ist auch, den Innenraum des Trägers mit einer Druckmittelquelle zu verbinden, so dass der hohle Träger mehr oder weniger aufgepumpt und dadurch in seinen Dimensionen verändert werden kann.For this purpose, the brush of the device according to the invention has a hollow carrier made of elastic material, which carries a trimming of abrasives and / or bristles and in whose interior an adjusting device is arranged, with which the carrier is deformable. Such adjustment can be mechanical and attack only point or line on the elastic carrier. It is also conceivable to connect the interior of the carrier with a pressure medium source, so that the hollow carrier can be more or less inflated and thereby changed in its dimensions.
Eine bevorzugte Möglichkeit, das Wirkprofil der Bürste während des Betriebs zu verändern, besteht darin, dass an der Innenseite des hohlen Trägers eine Mehrzahl von Hebeln angelenkt ist, deren andere Endbereiche gelenkig mit Buchsen verbunden sind und die Buchsen von außen mittels Betätigungsstangen entlang der Achse des Trägers verschiebbar sind. Dadurch kann mit relativ geringem mechanischen Aufwand die Innenseite des hohlen Trägers mit großen, durch entsprechende Hebelwirkung noch verstärkten, Kräften beaufschlagt werden.A preferred way to change the profile of action of the brush during operation, is that on the inside of the hollow support a plurality of levers is articulated, whose other end portions are pivotally connected to sockets and the sockets from the outside by means of actuating rods along the axis of the Carrier are displaced. As a result, with relatively little mechanical effort, the inside of the hollow support can be acted upon by large, by appropriate leverage even stronger forces.
Eine dazu alternative Möglichkeit, das Wirkprofil der Bürste während des Betriebs zu verändern, ergibt sich durch die Verwendung einer Bürste mit einem kreiszylindrischen Bürstenkörper, welcher in der Achse des hohlen elastischen Trägers angeordnet ist und entlang seiner Längsausdehnung verteilt mehrere von außen betätigbare Stellmotoren aufweist, welche radial nach außen weisende Betätigungsstangen haben, deren radial außen liegende Enden an der Innenmantelfläche des Trägers befestigt sind. Auch so lassen sich auf einfache Weise große radiale Kräfte auf den Bürstenkörper ausüben.An alternative possibility to change the profile of action of the brush during operation, results from the use of a brush with a circular cylindrical brush body, which is arranged in the axis of the hollow elastic support and distributed along its longitudinal extent comprises a plurality of externally actuable servomotors, which have radially outwardly facing actuating rods whose radially outer ends are fixed to the inner circumferential surface of the carrier. Even so, it is easy to exert large radial forces on the brush body.
Ausführungsbeispiele der Erfindung werden nachstehend anhand der Zeichnung näher erläutert; es zeigen
- Figur 1
- perspektivisch eine Vorrichtung zum Bürsten von Gegenständen, beispielsweise von Rotorblättern von Windkraftanlagen;
Figur 2- einen vertikalen Längsschnitt durch die Vorrichtung der
Figur 1 ; - Figur 3
- einen vertikalen Schnitt durch die Vorrichtung der
Figuren 1 und2 gemäß Linie III-III von ;Figur 2 Figur 4- einen Axialschnitt ähnlich der
Figur 3 durch eine erfindungsgemäße Vorrichtung zum Bürsten mit einer verstellbaren Bürste, jedoch ohne die in derFigur 3 erkennbare Schrägstellung der Bürste gegenüber dem Gehäuse; 5, 6 und 7Figuren - Schnitte, entsprechend der
, in denen jedoch die Wirkkontur der Bürste gegenüber den jeweils anderen Figuren verändert ist;Figur 4 - Figur 8
- einen Axialschnitt durch ein weiteres Ausführungsbeispiel einer verstellbaren Bürste;
Figur 9- einen Schnitt, entsprechend der
Figur 8 , in dem jedoch die Wirkkontur der Bürste gegenüber derjenigen inFigur 8 verändert ist.
- FIG. 1
- in perspective, a device for brushing objects, for example, rotor blades of wind turbines;
- FIG. 2
- a vertical longitudinal section through the device of
FIG. 1 ; - FIG. 3
- a vertical section through the device of
FIGS. 1 and2 according to line III-III ofFIG. 2 ; - FIG. 4
- an axial section similar to the
FIG. 3 by a device according to the invention for brushing with an adjustable brush, but without the in theFIG. 3 recognizable inclination of the brush relative to the housing; - FIGS. 5, 6 and 7
- Cuts, according to the
FIG. 4 in which, however, the active contour of the brush is changed with respect to the respective other figures; - FIG. 8
- an axial section through a further embodiment of an adjustable brush;
- FIG. 9
- a cut, according to the
FIG. 8 in which, however, the active contour of the brush is opposite to that inFIG. 8 is changed.
Zunächst wird auf die
Die Vorrichtung 1 besitzt ein Gehäuse 4, das seinerseits zwei im Querschnitt kreisbogenförmige Untergehäuse 4a und 4b umfasst. Die Untergehäuse 4a und 4b sind starr durch eine Strebe 5 und durch einen Absaugkanal 6 miteinander verbunden und enthalten jeweils einen Arbeitsraum 50 bzw. 51. Der Absaugkanal 6 weist zwei Zweige 6a, 6b auf, die jeweils in den Arbeitsraum 50 bzw. 51 eines Untergehäuses 4a bzw. 4b münden. Der Absaugkanal 6 ist mit einer nicht dargestellten Absaugeinrichtung, beispielsweise einem Industriestaubsauger, verbindbar.The device 1 has a
Im unteren Bereich sind die Untergehäuse 4a, 4b des Gehäuses 4 sekantenartig abgeschnitten und dort teilweise durch Bleche 7, 8, 9 abgedeckt, die etwa parallel zur Oberfläche des Werkstückes 2 verlaufen und die im Bereich von jedem Untergehäuse 4a, 4b jeweils einen Schlitz 10a bzw. 10b aufweisen.In the lower area, the
In den Arbeitsräumen 50 bzw. 51 der beiden Untergehäuse 4a, 4b ist jeweils eine Bürste 11 bzw. 12 in weiter unten beschriebener Weise drehbar gelagert. Die beiden Bürsten 11, 12 unterscheiden sich in ihrer Funktion: Während die Bürste 12, auf welche das Werkstück 2 bei seiner Bewegung in Vorschubrichtung 3 zuerst trifft, zum Schleifen der Werkstückoberfläche ausgelegt ist, dient die Bürste 11, welche diesem Vorgang nachgelagert ist, dem Reinigen bzw. Bürsten der vorgeschliffenen Oberfläche.In the
Dementsprechend weist die erste Bürste 12 flexible Schleifmittel 13 auf, bei denen es sich um handelsübliche Schleifsegmente mit Korund- oder Diamantbesatz handeln kann und die gegebenenfalls mit Bürsten zur Abstützung hinterlegt sein können. Diese Schleifmittel 13 sind an einem Bürstenkörper 14 mit ihrem radial innenliegenden Rand befestigt und in der Zeichnung nur sehr schematisch dargestellt. Sie ragen im Bereich des Schlitzes 10b durch diesen hindurch und berühren so die Oberfläche des Werkstückes 2.Accordingly, the
Die Bürste 12 ist nicht koaxial zu dem Untergehäuse 4b angeordnet; vielmehr ist ihre Achse gegenüber der Achse des Untergehäuses 4b gegen die Vorschubrichtung 3, in
Die zur Reinigung dienende Bürste 11 trägt entsprechend ihrer Funktion Borsten 15 aus Natur- oder Kunstfasern, die an ihrem radial innenliegenden Ende an einem Bürstenkörper 16 befestigt sind. Die Borsten 15 ragen durch den Schlitz 10a hindurch und legen sich an die Oberfläche des bearbeiteten Gegenstandes 2 an. Auch die Achse der Bürste 11 ist gegenüber der Achse des Untergehäuses 4a parallel gegen die Vorschubrichtung 3 versetzt.The cleaning
Ionisationseinrichtungen 60, 61 ragen in die Arbeitsräume 50, 51 und dienen dazu, in bekannter Weise die von den Bürsten 11, 12 ebgeriebenen Partikel zu ionisieren.
Die Achse 17 der Schleifbürste 12 ist an dem Gehäuse 4 in feststehenden Lagern gelagert, kann also ihre Orientierung und Position gegenüber dem Gehäuse 4 nicht verändern. Sie lässt sich gemeinsam mit der Bürste 12 durch einen Motor 19 in Drehung versetzen, der in
Anders dagegen die Achse 18 der Reinigungsbürste 11. Diese ist an ihren gegenüberliegenden Enden jeweils in einer Lagereinrichtung 20 gelagert, deren Vertikalposition gegenüber dem Gehäuse 4 durch eine Verstelleinrichtung 21 verändert werden kann. Bei Letzterer kann es sich beispielsweise um einen Hydraulik- oder Pneumatikzylinder handeln. Die Lagereinrichtung 20 besitzt, wie insbesondere der
Die Vertikalposition der Lagereinrichtung 20 auf gegenüberliegenden Seiten des Gehäuses 4 kann unterschiedlich eingestellt werden, so dass sich beispielsweise eine Schräglage der Bürste 11 ergibt, wie sie in
Die Bürste 11 wird über ihre Achse 18 von einem Motor 24 angetrieben, der in der Zeichnung ebenfalls nur schematisch dargestellt ist und unabhängig von dem Motor 19 betrieben werden kann, welcher der Bürste 12 zugeordnet ist.The
Im Betrieb wird der Gegenstand 2 unter der stationären Vorrichtung 1 im Sinne des Pfeiles 3 hindurchgeführt. Die Oberfläche des Gegenstandes 2 trifft dabei zunächst auf die Schleifmittel 13 der Schleifbürste 12 und wird hierbei intensiv geschliffen. Der Schleifstaub wird über den Zweig 6b des Absaugkanales 6 abgeführt. Die frisch geschliffenen Bereiche gelangen bei der Weiterbewegung des Gegenstandes 2 in den Bereich der Borsten 15 der Reinigungsbürste 11, die durch den Schlitz 10a hindurchragen. Dort erfolgt ein intensives Ausbürsten der mitgeführten Schleifstaubreste, die dann über den Zweig 6a des Absaugkanales 6 abtransportiert werden.In operation, the
Die Oberfläche der Gegenstände 2 ist im Regelfall nicht eben und/oder an unterschiedlichen Stellen unterschiedlich geneigt. Durch die Verstellung der Neigung der Achse 18 gegenüber der Horizontalen mit Hilfe der Verstelleinrichtungen 21 kann der Eingriff der Borsten 15 der Reinigungsbürste 11 an diese Kontur des Gegenstandes angepasst werden, so dass die Bürsteffizienz verbessert wird.The surface of the
Bei dem oben beschriebenen, nicht durch die Ansprüche gedeckten Ausführungsbeispiel bleibt der Querschnitt der Bürste über deren gesamte axiale Abmessung hinweg konstant, und zwar unabhängig von der jeweiligen Position der Trägerelemente. Bei den nachfolgend beschriebenen Bürsten der erfindungsgemäßen Vorrichtung ändert sich das Wirkprofil in axialer Richtung. Dieses ist aber nicht fest vorgegeben, sondern einstellbar, gegebenenfalls auch während des Betriebes der Vorrichtung. Hierdurch kann die Vorrichtung zur Verwendung an unterschiedlich geformten Gegenständen jeweils neu eingestellt werden. Vor allem aber ist es möglich, das Wirkprofil auch bei der Bearbeitung eines einzigen Gegenstandes anzupassen, wenn sich die Form von dessen Oberflächenbereich, der gerade im Eingriff mit dem Borsten der Bürste ist, während der Relativbewegung zwischen Bürste und Gegenstand verändert. Bei der in den
Durch eine Durchgangsbohrung 631 in dem in
An ihrem innerhalb der Hülse 632 liegenden Endbereich sind die Betätigungsstangen 635, 636 jeweils mit einem Mitnehmer 639, 640 ausgestattet, der sich in radialer Richtung durch eine entsprechend dimensionierte Öffnung 641 bzw. 642 der Hülse 632 hindurcherstreckt und mit dem nach außen überstehenden Bereich formschlüssig mit einer Buchse 633 bzw. 634 verbunden ist.At their lying within the
An der in den
Der Zapfen 630b der in den
Das Wirkprofil der Bürste 611 kann in folgender Weise an die Geometrie des bearbeiteten Gegenstandes angepasst werden: Wird mit Hilfe der Stellvorrichtung 637 die Betätigungsstange 635 in axialer Richtung verschoben, so verschiebt sich die Buchse 633, die mit der Betätigungsstange 635 bewegungsschlüssig verbunden ist, in gleicher Richtung auf der Hülse 632. Dies hat eine Verschwenkung der Hebel 643a, 643b zur Folge. In
In ähnlicher Weise lässt sich mit Hilfe des Stellmotors 638 über die Betätigungsstange 636 die in den
In den
Ein weiteres Ausführungsbeispiel einer Bürste 711, deren Wirkprofil variabel und gegebenenfalls auch im Betrieb der Vorrichtung einstellbar ist, ist schematisch in den
Oben wurden Möglichkeiten zur Gestaltung der Reinigungsbürste im Detail beschrieben. Selbstverständlich kann auch die Schleifbürste bei Bedarf ähnlich gebaut werden. Soweit oben die Konstruktion ganzer Bürsten erläutert wurde, kann diese Konstruktion auch bei einzenen Bürstensegmenten eingesetzt werden.Above possibilities for the design of the cleaning brush have been described in detail. Of course, the brush can be similarly built if necessary. As far as the construction of whole brushes has been explained above, this construction can also be used with single brush segments.
Claims (3)
- Device for grinding and/or brushing articles, witha) a housing (604);b) at least one drivable brush (611, 711) rotatably arranged in at least one working space of the housing (604), said brush comprising a brush body (616, 716) and a grinding material facing and/or a bristle facing (615, 715) secured to the latter;c) a suction channel that terminates in the working space and can be connected to a suction device;
whereind) the effective profile of the brush (611, 711) is adapted or can be adapted to the geometry of the article by deviation from the shape of a circular cylinder,
characterised in thate) the effective profile of the brush (611, 711) can be altered during the operation of the device;f) the brush (611, 711) comprises a hollow carrier (626, 726) made from elastic material, which carries a facing made from grinding material and/or bristles (615, 715) and in the interior of which an adjustment device (622 to 644, 745) is arranged, with which the shape of the carrier can be altered. - Device according to Claim 1, characterised in that a plurality of levers (643a, 643b, 644a, 644b) is hinged on the inside of the hollow carrier (626), the other end regions of the levers being hingedly connected to sleeves (633, 634) and the sleeves can be displaced from outside along the shaft of the carrier (626) by means of actuating rods (635, 636).
- Device according to Claim 1, characterised in that the brush (711) has a circular cylindrical brush body (716) that is arranged in the shaft of the hollow elastic carrier (726) and comprises distributed along its longitudinal extension a plurality of externally actuable adjustment motors that have actuating rods directed radially outwardly, whose radially outwardly lying ends are fastened to the inner circumferential surface of the carrier (726).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110012844 DE102011012844A1 (en) | 2011-03-03 | 2011-03-03 | Device for grinding and / or brushing objects |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2495074A2 EP2495074A2 (en) | 2012-09-05 |
EP2495074A3 EP2495074A3 (en) | 2014-09-03 |
EP2495074B1 true EP2495074B1 (en) | 2016-08-31 |
Family
ID=45654965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12000897.4A Not-in-force EP2495074B1 (en) | 2011-03-03 | 2012-02-11 | Device for grinding and/or brushing objects |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2495074B1 (en) |
DE (1) | DE102011012844A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015111042A1 (en) * | 2015-07-08 | 2017-01-12 | Alfred Kärcher Gmbh & Co. Kg | Washing device for a vehicle wash and car wash |
DK201600053U3 (en) | 2015-08-12 | 2016-11-25 | Senex As | Grinding head for a grinding arrangement |
CN107336104A (en) * | 2017-08-03 | 2017-11-10 | 成都漆彩之星环保科技有限公司 | Improve the pre-processing device of workpiece painting quality |
JP6926828B2 (en) * | 2017-08-28 | 2021-08-25 | 村田機械株式会社 | Deburring device |
IT201900018914A1 (en) * | 2019-10-15 | 2021-04-15 | Ancora Spa | PLANT FOR PROCESSING CERAMIC OR NATURAL STONE PRODUCTS OR OBJECTS |
EP4043172A1 (en) * | 2021-02-15 | 2022-08-17 | Klingspor Windpower Aps | Device for treating a mold surface, use of the device, and method for treating a mold surface |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2773275A (en) * | 1950-11-10 | 1956-12-11 | Osborn Mfg Co | Brush assembly |
US2922174A (en) * | 1957-11-12 | 1960-01-26 | A E Hickman | Cleaning tool for boxes of tool joints |
US3023440A (en) * | 1959-02-18 | 1962-03-06 | Tennant Co G H | Adjustable diameter cylindrical brush |
FR1297482A (en) * | 1961-08-11 | 1962-06-29 | Ateliers Rolba Soc D | Improvement in rotary brooms for road equipment |
DE1949304C3 (en) * | 1969-09-30 | 1973-12-13 | Keller & Knappich Gmbh | Centrifugal roller for street sweepers |
DE2733091C2 (en) * | 1977-07-22 | 1982-08-12 | Friedhelm 4600 Dortmund Heymann | Device for processing the surface of bodies having irregular contours |
US4352221A (en) * | 1981-05-01 | 1982-10-05 | Libbey-Owens-Ford Company | Apparatus for washing curved sheets |
JPS6014979A (en) * | 1983-07-05 | 1985-01-25 | 日本板硝子株式会社 | Cleaning device for bent glass |
FR2599604B1 (en) * | 1986-06-04 | 1991-04-26 | Taravel Bernard | ROTARY BRUSHING DEVICE |
DE4016154A1 (en) * | 1990-05-21 | 1991-11-28 | Sobernheimer Maschinenbau Gmbh | Frontal sweeping attachment for carrier vehicle - has diametrically adjustable rotary brush operating in casing and with receptacle for dirt |
DE9111527U1 (en) * | 1991-09-17 | 1991-12-12 | Fastje, Jens, 7303 Neuhausen | Cleaning system for corrugated surfaces |
DE4334246C2 (en) * | 1993-10-08 | 1998-07-02 | Csm Gmbh | Rotating drivable round brush for cleaning preferably garnished rollers |
JP3624265B2 (en) * | 1993-12-10 | 2005-03-02 | 株式会社ホタニ | Strip side edge polishing machine |
US6449792B1 (en) * | 2001-12-12 | 2002-09-17 | Harold R. Myers | Wobble brush apparatus |
DE10333215A1 (en) * | 2003-07-22 | 2005-02-17 | Sms Demag Ag | Shaping roller cleaning brush for working rollers in metal, especially aluminum, hot strip mills comprises fitting shape of brush coating and shape of cleaning brush according to shape of roller |
WO2008077398A1 (en) * | 2006-12-22 | 2008-07-03 | Vestas Wind Systems A/S | Automatic grinding machine for grinding elongated objects, like rotor blades for windturbines |
-
2011
- 2011-03-03 DE DE201110012844 patent/DE102011012844A1/en not_active Withdrawn
-
2012
- 2012-02-11 EP EP12000897.4A patent/EP2495074B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2495074A2 (en) | 2012-09-05 |
DE102011012844A1 (en) | 2012-09-06 |
EP2495074A3 (en) | 2014-09-03 |
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