EP1293294A1 - Polishing device for grinding the edge of a ceramic kitchenware - Google Patents

Polishing device for grinding the edge of a ceramic kitchenware Download PDF

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Publication number
EP1293294A1
EP1293294A1 EP02017960A EP02017960A EP1293294A1 EP 1293294 A1 EP1293294 A1 EP 1293294A1 EP 02017960 A EP02017960 A EP 02017960A EP 02017960 A EP02017960 A EP 02017960A EP 1293294 A1 EP1293294 A1 EP 1293294A1
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EP
European Patent Office
Prior art keywords
grinding
spindle
belt
grinding device
head
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
EP02017960A
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German (de)
French (fr)
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EP1293294B1 (en
Inventor
Alois Seer
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Maschinen und Stahlbau Julius Lippert GmbH and Co KG
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Maschinen und Stahlbau Julius Lippert GmbH and Co KG
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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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • 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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/008—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding ceramics, pottery, table ware
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/002—Machines or devices using grinding or polishing belts; Accessories therefor for grinding edges or bevels

Definitions

  • the invention relates to a grinding device for a rim to be ground ceramic utensils or a ceramic vessel such as a cup, a plate or the like.
  • ceramic utensil or ceramic vessel is concerned for example, around the foot of the ceramic object, around the mouth edge of a cup or the like.
  • DE 36 36 602 A1 discloses a grinding system for fine ceramic products, wherein the grinding system a feeder, a first and a second grinding device and contains a discharge device, each with a workstation. Centric to the Workstations of the feeder, the first and the second grinding device and the discharge device is a clock-driven converter arranged with a Turnstile is equipped, are attached to the four offset by 90 ° arms, each with a via a manifold block pressure controlled lifting unit and one mechanically are provided unlockable directional control valve.
  • the lifting unit has a suction head, the is rotatable, with a friction drive above each grinding device is arranged.
  • DE 197 16 523 A1 describes the Applicant a turning and delivery unit with integrated vacuum system and a Plant with such a unit.
  • This known turning and delivery unit has a stepwise rotatable base means on which at least one suction head by means of a associated first drive means is arranged vertically adjustable.
  • the at least a suction head is rotatably mounted on the base means and by means of an associated second drive means rotatably driven.
  • the / each suction head is with a Vacuum line connected, which is a connection device for a vacuum source having.
  • the DE 197 08 444 C1 of the applicant describes an endless abrasive belt, the Grinding the foot of a cup, a cup or the like. provided and that to this Purpose is provided with a Schleifmaterialbelag.
  • the abrasive material coating has a width which is smaller than the width of the Abrasive belt, wherein at least the center or the mirror of the cup, the Cup or the like. facing longitudinal edge of the abrasive belt a sanding material free Having edge strip and the abrasive material coating on a base carrier tape is glued.
  • a grinding device for grinding an edge of a ceramic or Porcelain items i. for grinding the mouth edge of a cup or a Bechers or the foot of a mug, a cup, a plate or the like. is also in the EP 0 988 928 A1 of the applicant.
  • This known grinding device has at least one abrasive or polishing belt and associated storage facilities therefor Tape up.
  • the respective bearing device has two spaced apart and axially mutually aligned circular disk elements, which together by means of a flexible low-stretch or strain-free connection device are connected. Between the circular disk elements of the respective storage device is a Spring device provided by means of which the circular disk elements from each other be forced away.
  • An elastically compliant hose element is with its two axially opposite end portions of the two circular disk elements attached to the respective storage facility.
  • the sanding or polishing belt is on Hose element on.
  • From DE-AS 1 162 251 is a plastering device for edges on plates and cups made of porcelain or similar Known masses, the circulating past cleaning stations become.
  • this known plastering device is an unprofiled plaster over guided a contact piece, wherein it is the doubly curved shape of the plate edge so that it does not come into contact with the groove of the contact piece.
  • the Plaster tape can be progressively moved according to its wear, it can be wound on spools or unwound from these or as an endless belt be executed.
  • DE 41 04 459 C1 describes a grinding machine for grinding the feet of Plates or the like. with a table or with appropriate guide blocks with lined up in a circle-segment-shaped and concentric grooves, over the at least one finite abrasive belt is guided.
  • This sanding belt is So not an endless sanding belt.
  • a conveyor system for sorting and treating flatware is described in DE 23 07 053 C2.
  • This known conveyor system is characterized by a flatware individually transporting, the flatware independently treating device continuous conveyor, at the beginning of two or more outgoing Sorting belts are arranged and at the end of an automatic stacking device and a downstream stack conveyor belt are provided.
  • the treatment device can be equipped with a grinding device whose abrasive belt by means of a Stamp through the conveyor belts through the conveyor belt against the foot of the sliding flatware is movable. Also in this known conveyor system leads the flatware to be ground during the grinding process a rotational movement.
  • the ceramic object to be ground leads during the grinding process a rotational movement.
  • the ceramic object to be ground with a suitable Hold fixture reliable. This is usually one Suction head connected to a vacuum source. That represents a considerable Expense.
  • DE 22 50 735 A describes a grinding machine for reworking ceramic Products, in particular plate and bowl feet, wherein a continuous Feeding on an endless, without any entrainment or tensioning devices provided infeed conveyor of arriving in the position of use plates and bowls to one of two or more consecutively arranged, horizontally encircling, mechanically, pneumatically or hydraulically height-adjustable grinding spindles existing grinding station and the further transport of plates and bowls over the grinding station up to an endless, without any entrainment or Tensioning devices provided outlet conveyor in sync with inlet and outlet belt running overlying endless sponge band takes over, with several for the required sanding pressure required printing plates on the inside of the Sponge belt movable and a spring-loaded tension pulley are arranged.
  • DE 81 29 487 U1 discloses a device for smoothing the feet of ceramic Moldings with a rotatably driven disc, on which an elastically yielding coating is supported, wherein the lining of a permeable to air and drive substance is formed and the rotatably driven disc has a cavity of the lining is spanned and which is in communication with a suction line.
  • an edge grinding device for the mouth edge of a ceramic vessel with a tool base, at least one on the tool base arranged tool head, a grinding tool arranged on the tool head, grinding the mouth edge of the vessel over part of its circumferential length, and a rotationally displaceable vessel holder known to the drinking vessel fixed to his foot and rotates relative to the grinding tool.
  • the tool head is with the grinding tool so pivotally mounted on the tool base, that he in a oscillating pendulum motion is displaceable around the mouth edge of the vessel.
  • this known edge grinding two diametrically with respect provided the drinking opening of the vessel opposite tool heads.
  • U1 is a device for stepwise moving and clamping the sanding belt of disc-type continuous grinding machines known in the Abrasive belt unwound from a supply reel spool, one up and down guided movable pressure plate and is wound on a take-up reel, wherein the abrasive belt on both sides of the pressure plate by means of a clamping device is clamped, and wherein on the abrasive belt a this exciting and under Voltage-holding clamping device attacks.
  • this known device is sucked on his foot to be ground plate on a spindle disk, the Grinding the plate foot is set in rotation.
  • the invention has for its object to provide a grinding device for a grinding edge of a ceramic object, such as a cup, a mug, one Plates or the like. to create, which requires no vacuum source or the comparatively is simply formed.
  • the grinding device has the advantages that the at his grinding edge, which is for example the foot or the mouth edge of a corresponding ceramic object is to be ground ceramic object to be ground stands and on the rotatable spindle of the grinding station of the grinding device provided grinding head performs a rotational movement, wherein during the rotation of the grinding head, the grinding belt provided on the grinding head with the grinding head turns without moving in its longitudinal direction.
  • the sanding belt is only in the spaced from the transport device inactive position in his Longitudinally intermittently, i. moved on to a defined abrasive belt section.
  • This indexing of the sanding belt which is preferably an endless Grinding belt is done, preferably by means of a Reibradantriebes, which is understands that this feed motion also in other ways, e.g. through a Stepper motor or the like. can be realized.
  • a rim to be ground Ceramic article such as a cup, a cup, a plate or the like.
  • FIG. 1 shows a side view of a grinding device 10 for grinding Ceramic articles 12, 14, 16.
  • the ceramic article 12 is a deep cup
  • the ceramic article 14 is a flat cup, in which Ceramic article 16 is a plate.
  • the grinding device 10 for grinding an edge of a quasi arbitrary Ceramic article 12, 14, 16 is, without it being necessary, at the Grinding device 10 make changeover.
  • the grinding device 10 is also suitable for Grinding the mouth edge of the respective ceramic article 12, 14, 16.
  • the grinding device 10 has a transport device 18, which for Transporting each to be ground ceramic object 12, 14, 16 to a Grinding station 20 is used.
  • the transport device 18 has an endless conveyor belt 22 on, which is deflected by two spaced pulleys 24.
  • the endless Conveyor belt 22 is designed in such a way that in each case to be ground Ceramic article 12, 14, 16 is held by static friction.
  • the conveyor belt 22 may be provided with a suitable static friction coating, i. when slip-resistant belt, be formed.
  • the conveyor belt 22 with grooves, grooves, holes or the like. be educated.
  • the grinding station 20 has a spindle 26 with a grinding head 28.
  • the spindle 26 is rotatable about its central longitudinal axis 32 by means of a rotary drive 30. This is indicated by the arcuate arrow 34.
  • the rotary actuator 30 is at a Sectionally cut drawn turntable 36 mounted. On the turntable 36 For example, a number of spindles 26 may be provided spaced apart from each other.
  • the spindle 26 is also connected to a lifting drive 38, by means of which the spindle 26 with the grinding head 28 between one of the transport device 18 spaced Inmedigna and a sent to the transport device 18 active position back and is manufacturable. This is indicated by the double arrow 40.
  • a grinding belt 42 is provided, which is preferably at an endless sanding belt, which is deflected around two pulleys 44, the at Grinding head 28 are mounted.
  • the sanding belt 42 which is preferably a Diamond grinding belt is also about a grinding belt feed roller 46th deflected, which is mounted on the grinding head 28 and with a friction wheel 48 (see Figure 2) is rotationally connected.
  • the friction wheel 48 is also mounted on the grinding head 28.
  • the Friction wheel 48 in combination with a friction ring 50, forms an abrasive belt feed device 52.
  • the friction ring 50 is rigidly provided or with the turntable 36th firmly connected, it surrounds the spindle 26 concentrically.
  • the friction ring 50 has a Radius on the radial distance of the friction wheel 48 from the central longitudinal axis 32nd the spindle 26 corresponds.
  • Figure 1 the spindle 26 with its grinding head 28 and the grinding head 28th provided grinding belt 32 in the delivered to the transport means 18 Aktiv-. Drawn grinding position.
  • Figure 2 illustrates, in the same Details with the same reference numerals as indicated in Figure 1, the spindle 26th with the grinding head 28 and provided on the grinding head 28 grinding belt 42 in her from the transport device 18 spaced inactive position.
  • the turntable Friction ring 50 is rigid at a position associated with the spindle 26 in the inactive position, i. Turntable fixed, provided.
  • the spindle 26 is formed as a hollow spindle and at its from the grinding head 28th provided with a cooling water connection 54.
  • a Water nozzle device 56 (see Figure 2), which formed over the hollow spindle Spindle 26 is fluidically connected to the cooling water connection 54.
  • the conveyor belt 22 of the transport device 18 and the grinding station 20 are in one (not shown) housing arranged, which forms a splash guard, since during the Grinding process Coolant water splashes.
  • the grinding apparatus 10 shown in FIGS. 1 and 2 is for grinding rotationally symmetrical ceramic objects 12, 14, 16.
  • the sanding Ceramic articles 12, 14, 16 rest on the non-slip endless conveyor belt 22 of the Transport device 18.
  • the said conveyor belt is, for example, a timing belt with a non-slip coating and with grooves, grooves, holes or the like. for defined discharge of the cooling water.
  • the grinding process takes place in Pass on the transport device 18. This is either the central Longitudinal axis 32 of the spindle 26 rotating abrasive belt 42 to the transport device 18 with Help the lifting device 38 delivered, or it is to be ground Ceramic article 12, 14, 16 from the sanding belt 42 by means of the lifting device 58th delivered.
  • the grinding belt 42 leads in its longitudinal direction no movement through, but it rotates with the grinding head 28 on which it is provided is about the central longitudinal axis 32 of the spindle 26.
  • the spindle 26 is adjusted to its inactive position, wherein the friction wheel 48 comes into contact with the friction ring 50 and the friction wheel 48 due to the rotation the spindle 26 performs a rotational movement.
  • This rotational movement of the friction wheel 48 is by means of a reduction gear 60 in a correspondingly reduced rotation of Abrasive belt feed roller 46 implemented so that the endless abrasive belt 42 in the Inactive position of the spindle 26 by a defined small abrasive belt section adjusted or advanced in its longitudinal direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

Es wird eine Schleifvorrichtung (10) für einen zu schleifenden Rand eines keramischen Geschirrgegenstandes oder Gefäßes, wie einer Tasse, eines Bechers, eines Tellers o.dgl., beschrieben. Die Schleifvorrichtung (10) weist eine Transportvorrichtung (18) zum Transportieren des zu schleifenden Gegenstandes (12, 14, 16) zu einer Schleifstation (20) auf. Die Transporteinrichtung (18) ist zum festen Halten des zu schleifenden Gegenstandes (12, 14, 16) vorgesehen. Die Schleifstation (20) weist eine um ihre zentrale Längsachse (32) drehbare Spindel (26) mit einem Schleifkopf (28) auf, an dem ein Schleifband (42) vorgesehen ist. Der Schleifkopf (28) führt während des Schleifvorgangs bei sich nicht in seiner Längsrichtung bewegenden, stillstehendem Schleifband (42) eine Rotation um die zentrale Längsachse (32) der Spindel (26) aus. <IMAGE>A grinding apparatus (10) for a rim of a ceramic utensil or vessel to be ground, such as a cup, a cup, a plate, or the like, is described. The grinding device (10) has a transport device (18) for transporting the object to be ground (12, 14, 16) to a grinding station (20). The transport device (18) is provided for firmly holding the object to be ground (12, 14, 16). The grinding station (20) has a spindle (26) rotatable about its central longitudinal axis (32) with a grinding head (28) on which a grinding belt (42) is provided. During the grinding process, the grinding head (28) performs a rotation about the central longitudinal axis (32) of the spindle (26) with the stationary grinding belt (42) not moving in its longitudinal direction. <IMAGE>

Description

Die Erfindung betrifft eine Schleifvorrichtung für einen zu schleifenden Rand eines keramischen Geschirrgegenstandes oder eines keramischen Gefäßes wie einer Tasse, eines Tellers o.dgl.The invention relates to a grinding device for a rim to be ground ceramic utensils or a ceramic vessel such as a cup, a plate or the like.

Bei dem zu schleifenden Rand des nachfolgend als Keramikgegenstand bezeichneten keramischen Geschirrgegenstandes oder keramischen Gefäßes handelt es sich beispielsweise um den Fuß des Keramikgegenstandes, um den Mundrand einer Tasse o.dgl.In the edge to be ground of the below referred to as a ceramic object ceramic utensil or ceramic vessel is concerned for example, around the foot of the ceramic object, around the mouth edge of a cup or the like.

Die DE 36 36 602 A1 offenbart eine Schleifanlage für feinkeramische Erzeugnisse, wobei die Schleifanlage eine Zuführeinrichtung, eine erste und eine zweite Schleifvorrichtung sowie eine Abfuhreinrichtung mit je einer Arbeitsstation enthält. Zentrisch zu den Arbeitsstationen der Zufuhreinrichtung, der ersten und der zweiten Schleifvorrichtung und der Abführeinrichtung ist ein taktbetriebener Umsetzer angeordnet, der mit einem Drehkreuz ausgerüstet ist, an dem vier um 90° versetzte Arme befestigt sind, die mit je einer über einen Verteilerblock druckgesteuerten Hubeinheit und je einem mechanisch entsperrbaren Wegeventil versehen sind. Die Hubeinheit weist einen Saugkopf auf, der drehbar ausgeführt ist, wobei über jeder Schleifvorrichtung ein Friktionsantrieb angeordnet ist. Bei dieser bekannten Schleifanlage führt also der zu schleifende Keramikgegenstand während des Schleifvorgangs mit Hilfe des Saugkopfes eine Rotationsbewegung durch. Zu demselben Zwecke beschreibt die DE 197 16 523 A1 der Anmelderin eine Dreh- und Zustelleinheit mit integriertem Vakuumsystem sowie eine Anlage mit einer solchen Einheit. Diese bekannte Dreh- und Zustelleinheit weist eine schrittweise drehbare Basiseinrichtung auf, an der mindestens ein Saugkopf mittels einer zugehörigen ersten Antriebseinrichtung höhenverstellbar angeordnet ist. Der mindestens eine Saugkopf ist an der Basiseinrichtung drehbar gelagert und mittels einer zugehörigen zweiten Antriebseinrichtung rotativ antreibbar. Der/jeder Saugkopf ist mit einer Vakuumleitung verbunden, die eine Anschlußeinrichtung für eine Vakuumquelle aufweist.DE 36 36 602 A1 discloses a grinding system for fine ceramic products, wherein the grinding system a feeder, a first and a second grinding device and contains a discharge device, each with a workstation. Centric to the Workstations of the feeder, the first and the second grinding device and the discharge device is a clock-driven converter arranged with a Turnstile is equipped, are attached to the four offset by 90 ° arms, each with a via a manifold block pressure controlled lifting unit and one mechanically are provided unlockable directional control valve. The lifting unit has a suction head, the is rotatable, with a friction drive above each grinding device is arranged. In this known grinding system thus leads to be sanded Ceramic object during the grinding process with the help of the suction head Rotational motion through. For the same purpose DE 197 16 523 A1 describes the Applicant a turning and delivery unit with integrated vacuum system and a Plant with such a unit. This known turning and delivery unit has a stepwise rotatable base means on which at least one suction head by means of a associated first drive means is arranged vertically adjustable. The at least a suction head is rotatably mounted on the base means and by means of an associated second drive means rotatably driven. The / each suction head is with a Vacuum line connected, which is a connection device for a vacuum source having.

Die DE 197 08 444 C1 der Anmelderin beschreibt ein Endlos-Schleifband, das zum Schleifen des Fußes eines Bechers, einer Tasse o.dgl. vorgesehen und das zu diesem Zwecke mit einem Schleifmaterialbelag versehen ist. Um ein ungewolltes und unerwünschtes Einschleifen in den Spiegel des Bechers, der Tasse o.dgl. zu vermeiden, weist der Schleifmaterialbelag eine Breite auf, die kleiner ist als die Breite des Schleifbandes, wobei zumindest der dem Zentrum bzw. dem Spiegel des Bechers, der Tasse o.dgl. zugewandte Längsrand des Schleifbandes einen schleifmaterialfreien Randstreifen aufweist und der Schleifmaterialbelag auf einem Grundträgerband festgeklebt ist.The DE 197 08 444 C1 of the applicant describes an endless abrasive belt, the Grinding the foot of a cup, a cup or the like. provided and that to this Purpose is provided with a Schleifmaterialbelag. To an unwanted and unwanted grinding into the mirror of the cup, the cup or the like. to avoid, the abrasive material coating has a width which is smaller than the width of the Abrasive belt, wherein at least the center or the mirror of the cup, the Cup or the like. facing longitudinal edge of the abrasive belt a sanding material free Having edge strip and the abrasive material coating on a base carrier tape is glued.

Eine Schleifvorrichtung zum Schleifen eines Randes eines Keramik- oder Porzellangegenstandes, d.h. zum Schleifen des Mundrandes einer Tasse oder eines Bechers oder des Fußes eines Bechers, einer Tasse, eines Tellers o.dgl. ist auch in der EP 0 988 928 A1 der Anmelderin offenbart. Diese bekannte Schleifvorrichtung weist mindestens ein Schleif- oder Polierband und zugehörige Lagereinrichtungen für dieses Band auf. Die jeweilige Lagereinrichtung weist zwei voneinander beabstandete und axial miteinander fluchtende Kreisscheibenelemente auf, die miteinander mittels einer flexiblen dehnungsarmen oder dehnungsfreien Verbindungseinrichtung verbunden sind. Zwischen den Kreisscheibenelementen der jeweiligen Lagereinrichtung ist eine Federeinrichtung vorgesehen, mittels welcher die Kreisscheibenelemente voneinander weggezwängt werden. Ein elastisch nachgiebiges Schlauchelement ist mit seinen beiden axial voneinander abgewandten Endabschnitten an den beiden Kreisscheibenelementen der jeweiligen Lagereinrichtung angebracht. Das Schleif- oder Polierband liegt am Schlauchelement an.A grinding device for grinding an edge of a ceramic or Porcelain items, i. for grinding the mouth edge of a cup or a Bechers or the foot of a mug, a cup, a plate or the like. is also in the EP 0 988 928 A1 of the applicant. This known grinding device has at least one abrasive or polishing belt and associated storage facilities therefor Tape up. The respective bearing device has two spaced apart and axially mutually aligned circular disk elements, which together by means of a flexible low-stretch or strain-free connection device are connected. Between the circular disk elements of the respective storage device is a Spring device provided by means of which the circular disk elements from each other be forced away. An elastically compliant hose element is with its two axially opposite end portions of the two circular disk elements attached to the respective storage facility. The sanding or polishing belt is on Hose element on.

Aus der DE-AS 1 162 251 ist eine Verputzvorrichtung für Ränder an Tellern und Tassen aus Porzellan o.dgl. Massen bekannt, die umlaufend an Putzstellen vorbeigeführt werden. Bei dieser bekannten Verputzvorrichtung ist ein unprofiliertes Verputzband über ein Kontaktstück geführt, wobei es sich der doppelt gekrümmten Gestalt des Tellerrandes so anpaßt, daß derselbe mit der Rille des Kontaktstückes nicht in Berührung kommt. Das Verputzband kann seiner Abnutzung entsprechend schrittweise fortbewegt werden, es kann auf Spulen aufgewickelt bzw. von diesen abgespult werden oder als endloses Band ausgeführt sein.From DE-AS 1 162 251 is a plastering device for edges on plates and cups made of porcelain or similar Known masses, the circulating past cleaning stations become. In this known plastering device is an unprofiled plaster over guided a contact piece, wherein it is the doubly curved shape of the plate edge so that it does not come into contact with the groove of the contact piece. The Plaster tape can be progressively moved according to its wear, it can be wound on spools or unwound from these or as an endless belt be executed.

Die DE 41 04 459 C1 beschreibt eine Schleifmaschine zum Beschleifen der Füße von Tellern o.dgl. mit einem Tisch oder mit entsprechenden Führungsblöcken mit hintereinandergereihten kreisbogensegmentförmigen und konzentrischen Nuten, über die mindestens ein endliches Schleifband geführt ist. Bei diesem Schleifband handelt es sich also nicht um ein endloses Schleifband. Beim Schleifen werden die Tellerfüße mit dem Schleifband in die zum jeweiligen Durchmesser der Füße passende Nut gedrückt. Aufgrund der zahlreichen Nuten und gegebenenfalls beweglichen Führungsblöcke können ohne Umrüstarbeiten verschieden große Teller o.dgl. mit zentrischen und exzentrischem Fuß beschliffen werden. Auch hier wird der zu schleifende Teller während des Schleifvorgangs rotativ angetrieben.DE 41 04 459 C1 describes a grinding machine for grinding the feet of Plates or the like. with a table or with appropriate guide blocks with lined up in a circle-segment-shaped and concentric grooves, over the at least one finite abrasive belt is guided. This sanding belt is So not an endless sanding belt. When grinding the plate feet with the Grinding belt pressed into the groove corresponding to the respective diameter of the feet. Due to the numerous grooves and possibly movable guide blocks can without retooling different sized plates or the like. with centric and eccentric foot are ground. Again, the plate to be ground during the grinding process driven by rotation.

Eine Förderanlage zum Sortieren und Behandeln von Flachgeschirr beschreibt die DE 23 07 053 C2. Gekennzeichnet ist diese bekannte Förderanlage durch eine das Flachgeschirr einzeln transportierende, das Flachgeschirr selbständig behandelnde Vorrichtung durchlaufende Förderbahn, an deren Anfang zwei oder mehrere abgehende Sortierbänder angeordnet sind und an deren Ende eine selbsttätige Stapelvorrichtung und ein nachgeschaltetes Stapeltransportband vorgesehen sind. Die Behandlungsvorrichtung kann mit einer Schleifeinrichtung ausgestattet sein, deren Schleifband mittels eines Stempels durch die Transportriemen der Förderbahn hindurch gegen den Fuß des zu schleifenden Flachgeschirrs bewegbar ist. Auch bei dieser bekannten Förderanlage führt des zu schleifende Flachgeschirr während des Schleifvorgangs eine Drehbewegung aus.A conveyor system for sorting and treating flatware is described in DE 23 07 053 C2. This known conveyor system is characterized by a flatware individually transporting, the flatware independently treating device continuous conveyor, at the beginning of two or more outgoing Sorting belts are arranged and at the end of an automatic stacking device and a downstream stack conveyor belt are provided. The treatment device can be equipped with a grinding device whose abrasive belt by means of a Stamp through the conveyor belts through the conveyor belt against the foot of the sliding flatware is movable. Also in this known conveyor system leads the flatware to be ground during the grinding process a rotational movement.

Bei den bekannten Schleifvorrichtungen führt also der zu schleifende Keramikgegenstand während des Schleifvorgangs eine Drehbewegung aus. Zu diesem Zwecke ist es erforderlich, den zu schleifenden Keramikgegenstand mit einer geeigneten Haltevorrichtung zuverlässig zu halten. Üblicherweise handelt es sich hier um einen Saugkopf, der mit einer Vakuumquelle verbunden ist. Das stellt einen erheblichen Aufwand dar.In the known grinding devices, therefore, the ceramic object to be ground leads during the grinding process a rotational movement. For this purpose it is required, the ceramic object to be ground with a suitable Hold fixture reliable. This is usually one Suction head connected to a vacuum source. That represents a considerable Expense.

Die DE 22 50 735 A beschreibt eine Schleifmaschine zum Nachbearbeiten keramischer Erzeugnisse, insbesondere von Teller- und Schüsselfüßen, wobei eine kontinuierliche Zuführung auf einem endlosen, ohne jegliche Mitnahme- oder Spannvorrichtungen versehenen Einlaufband der in der Gebrauchslage ankommenden Teller und Schüsseln zu einer aus zwei oder mehreren hintereinander angeordneten, horizontal umlaufenden, mechanisch, pneumatisch oder hydraulisch höhenverstellbaren Schleifspindeln bestehenden Schleifstation erfolgt und den Weitertransport der Teller und Schüsseln über die Schleifstation bis zu einem endlosen, ohne jegliche Mitnahme- oder Spannvorrichtungen versehenen Auslaufband ein synchron mit Ein- und Auslaufband laufendes darüberliegendes endloses Schwammband übernimmt, wobei mehrere für den erforderlichen Schleifdruck benötigte Druckplatten auf der Innenseite des Schwammbandes beweglich sowie eine federbelastete Spannrolle angeordnet sind.DE 22 50 735 A describes a grinding machine for reworking ceramic Products, in particular plate and bowl feet, wherein a continuous Feeding on an endless, without any entrainment or tensioning devices provided infeed conveyor of arriving in the position of use plates and bowls to one of two or more consecutively arranged, horizontally encircling, mechanically, pneumatically or hydraulically height-adjustable grinding spindles existing grinding station and the further transport of plates and bowls over the grinding station up to an endless, without any entrainment or Tensioning devices provided outlet conveyor in sync with inlet and outlet belt running overlying endless sponge band takes over, with several for the required sanding pressure required printing plates on the inside of the Sponge belt movable and a spring-loaded tension pulley are arranged.

Die DE 81 29 487 U1 offenbart eine Vorrichtung zum Glätten der Füße keramischer Formlinge mit einer drehantreibbaren Scheibe, an der ein elastisch nachgiebiger Belag abgestützt ist, wobei der Belag von einem für Luft und Antrieb durchlässigen Stoff gebildet ist und die drehantreibbare Scheibe einen Hohlraum aufweist, der vom Belag überspannt ist und der mit einer Saugleitung in Verbindung steht.DE 81 29 487 U1 discloses a device for smoothing the feet of ceramic Moldings with a rotatably driven disc, on which an elastically yielding coating is supported, wherein the lining of a permeable to air and drive substance is formed and the rotatably driven disc has a cavity of the lining is spanned and which is in communication with a suction line.

Aus der DE 100 02 477 A1 ist eine Randschleifvorrichtung für den Mundrand eines keramischen Gefäßes mit einer Werkzeugbasis, mindestens einem an der Werkzeugbasis angeordneten Werkzeugkopf, einem am Werkzeugkopf angeordneten Schleifwerkzeug, das den Mundrand des Gefäßes über einen Teil seiner Umfangslänge schleifbearbeitet, und einem in Rotationsbewegung versetzbaren Gefäßhalter bekannt, der das Trinkgefäß an seinem Fuß fixiert und relativ zum Schleifwerkzeug dreht. Der Werkzeugkopf ist mit dem Schleifwerkzeug derart schwenkbar an der Werkzeugbasis gelagert, daß er in eine um den Mundrand des Gefäßes oszillierende Pendelbewegung versetzbar ist. Vorzugsweise sind bei dieser bekannten Randschleifvorrichtung zwei diametral bezüglich der Trinköffnung des Gefäßes gegenüberliegende Werkzeugköpfe vorgesehen. From DE 100 02 477 A1 an edge grinding device for the mouth edge of a ceramic vessel with a tool base, at least one on the tool base arranged tool head, a grinding tool arranged on the tool head, grinding the mouth edge of the vessel over part of its circumferential length, and a rotationally displaceable vessel holder known to the drinking vessel fixed to his foot and rotates relative to the grinding tool. The tool head is with the grinding tool so pivotally mounted on the tool base, that he in a oscillating pendulum motion is displaceable around the mouth edge of the vessel. Preferably, in this known edge grinding two diametrically with respect provided the drinking opening of the vessel opposite tool heads.

Aus der DE 87 17 353 U1 ist eine Vorrichtung zum schrittweisen Bewegen und Spannen des Schleifbandes von Tellerfuß-Durchlauf-Schleifmaschinen bekannt, bei der das Schleifband von einer Vorratswickelspule abgewickelt, über eine auf- und abwärts bewegbare Andruckplatte geleitet und auf eine Aufwickelspule aufgewickelt wird, wobei das Schleifband beiderseits der Andruckplatte mittels einer Klemmeinrichtung eingespannt ist, und wobei an dem Schleifband eine dieses spannende und unter Spannung haltende Spanneinrichtung angreift. Bei dieser bekannten Vorrichtung wird der an seinem Fuß zu schleifende Teller an einer Spindelscheibe angesaugt, die zum Schleifen des Tellerfüßes in Rotation versetzt wird.From DE 87 17 353 U1 is a device for stepwise moving and clamping the sanding belt of disc-type continuous grinding machines known in the Abrasive belt unwound from a supply reel spool, one up and down guided movable pressure plate and is wound on a take-up reel, wherein the abrasive belt on both sides of the pressure plate by means of a clamping device is clamped, and wherein on the abrasive belt a this exciting and under Voltage-holding clamping device attacks. In this known device is sucked on his foot to be ground plate on a spindle disk, the Grinding the plate foot is set in rotation.

Der Erfindung liegt die Aufgabe zugrunde, eine Schleifvorrichtung für einen zu schleifenden Rand eines Keramikgegenstandes, wie einer Tasse, eines Bechers, eines Tellers o.dgl. zu schaffen, die keine Vakuumquelle benötigt bzw. die vergleichsweise einfach ausgebildet ist.The invention has for its object to provide a grinding device for a grinding edge of a ceramic object, such as a cup, a mug, one Plates or the like. to create, which requires no vacuum source or the comparatively is simply formed.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst. Bevorzugte Aus- bzw. Weiterbildungen der erfmdungsgemäßen Schleifvorrichtung sind in den Unteransprüchen gekennzeichnet.This object is achieved by the features of claim 1. Preferred embodiments or further developments of the inventive grinding device are characterized in the subclaims.

Die erfindungsgemäße Schleifvorrichtung weist die Vorteile auf, daß der an seinem zu schleifenden Rand, bei dem es sich beispielsweise um den Fuß oder den Mundrand eines entsprechenden Keramikgegenstandes handelt, zu schleifende Keramikgegenstand still steht und der an der drehbaren Spindel der Schleifstation der Schleifvorrichtung vorgesehene Schleifkopf eine Drehbewegung durchführt, wobei während der Drehung des Schleifkopfes das am Schleifkopf vorgesehen Schleifband sich mit dem Schleifkopf dreht, ohne in seiner Längsrichtung eine Bewegung durchzuführen. Das Schleifband wird erst in der von der Transporteinrichtung beabstandeten Inaktivstellung in seiner Längsrichtung taktweise, d.h. um einen definierten Schleifbandabschnitt weiterbewegt. Dieses Weitertakten des Schleifbandes, bei dem es sich vorzugsweise um ein endloses Schleifband handelt, erfolgt vorzugsweise mittels eines Reibradantriebes, wobei es sich versteht, daß diese Vorschubbewegung auch auf andere Weise, z.B. durch einen Schrittmotor o.dgl. realisiert sein kann. The grinding device according to the invention has the advantages that the at his grinding edge, which is for example the foot or the mouth edge of a corresponding ceramic object is to be ground ceramic object to be ground stands and on the rotatable spindle of the grinding station of the grinding device provided grinding head performs a rotational movement, wherein during the rotation of the grinding head, the grinding belt provided on the grinding head with the grinding head turns without moving in its longitudinal direction. The sanding belt is only in the spaced from the transport device inactive position in his Longitudinally intermittently, i. moved on to a defined abrasive belt section. This indexing of the sanding belt, which is preferably an endless Grinding belt is done, preferably by means of a Reibradantriebes, which is understands that this feed motion also in other ways, e.g. through a Stepper motor or the like. can be realized.

Weitere Einzelheiten, Merkmale und Vorteile ergeben sich aus der nachfolgenden Beschreibung eines in der Zeichnung dargestellten Ausführungsbeispieles der erfindungsgemäßen Schleifvorrichtung für einen zu schleifenden Rand eines Keramikgegenstandes wie einer Tasse, eines Bechers, eines Tellers o.dgl.Further details, features and advantages will become apparent from the following Description of an embodiment of the illustrated in the drawing Grinding device according to the invention for a rim to be ground Ceramic article such as a cup, a cup, a plate or the like.

Es zeigen:

Figur 1
eine Ansicht einer Ausbildung der Schleifvorrichtung in Blickrichtung einer ersten Raumrichtung, und
Figur 2
die Schleifvorrichtung gemäß Figur 1 in einer zur ersten Raumrichtung senkrechten zweiten Raumrichtung.
Show it:
FIG. 1
a view of an embodiment of the grinding device in the direction of a first spatial direction, and
FIG. 2
the grinding device according to Figure 1 in a direction perpendicular to the first spatial direction of the second spatial direction.

Figur 1 zeigt in einer Seitenansicht eine Schleifvorrichtung 10 für zu schleifende Keramikgegenstände 12, 14, 16. Bei dem Keramikgegenstand 12 handelt es sich um eine tiefe Tasse, bei dem Keramikgegenstand 14 handelt es sich um eine flache Tasse, bei dem Keramikgegenstand 16 handelt es sich um einen Teller. Damit soll verdeutlicht werden, daß sich die Schleifvorrichtung 10 zum Schleifen eines Randes eines quasi beliebigen Keramikgegenstandes 12, 14, 16 eignet, ohne daß es erforderlich ist, an der Schleifvorrichtung 10 Umstellarbeiten vorzunehmen. Bei dem zu schleifenden Rand handelt es sich im dargestellten Ausführungsbeispiel um den Fußrand des jeweiligen Keramikgegenstandes 12, 14, 16. Die Schleifvorrichtung 10 eignet sich auch zum Schleifen des Mundrandes des jeweiligen Keramikgegenstandes 12, 14, 16.FIG. 1 shows a side view of a grinding device 10 for grinding Ceramic articles 12, 14, 16. The ceramic article 12 is a deep cup, the ceramic article 14 is a flat cup, in which Ceramic article 16 is a plate. This should be clarified that the grinding device 10 for grinding an edge of a quasi arbitrary Ceramic article 12, 14, 16 is, without it being necessary, at the Grinding device 10 make changeover. At the edge to be ground is in the illustrated embodiment, the foot edge of the respective Ceramic article 12, 14, 16. The grinding device 10 is also suitable for Grinding the mouth edge of the respective ceramic article 12, 14, 16.

Die Schleifvorrichtung 10 weist eine Transporteinrichtung 18 auf, die zum Transportieren des jeweils zu schleifenden Keramikgegenstandes 12, 14, 16 zu einer Schleifstation 20 dient. Die Transporteinrichtung 18 weist ein endloses Förderband 22 auf, das um zwei voneinander beabstandete Umlenkrollen 24 umgelenkt ist. Das endlose Förderband 22 ist derartig ausgebildet, daß an ihm der jeweils zu schleifende Keramikgegenstand 12, 14, 16 durch Haftreibung festgehalten wird. Zu diesem Zwecke kann das Förderband 22 beispielsweise mit einem geeigneten Haftreibungsbelag, d.h. als rutschhemmender Gurt, ausgebildet sein. Um einen optimalen Kühlwasserablauf zu erreichen, kann das Förderband 22 mit Rillen, Nuten, Löchern o.dgl. ausgebildet sein.The grinding device 10 has a transport device 18, which for Transporting each to be ground ceramic object 12, 14, 16 to a Grinding station 20 is used. The transport device 18 has an endless conveyor belt 22 on, which is deflected by two spaced pulleys 24. The endless Conveyor belt 22 is designed in such a way that in each case to be ground Ceramic article 12, 14, 16 is held by static friction. For this purpose For example, the conveyor belt 22 may be provided with a suitable static friction coating, i. when slip-resistant belt, be formed. For an optimal cooling water drain reach, the conveyor belt 22 with grooves, grooves, holes or the like. be educated.

Die Schleifstation 20 weist eine Spindel 26 mit einem Schleifkopf 28 auf. Die Spindel 26 ist mit Hilfe eines Drehantriebes 30 um ihre zentrale Längsachse 32 drehbar. Das ist durch den bogenförmigen Pfeil 34 angedeutet. Der Drehantrieb 30 ist an einem abschnittweise geschnitten gezeichneten Drehteller 36 montiert. Am Drehteller 36 können eine Anzahl Spindeln 26 voneinander beabstandet vorgesehen sein. Die Spindel 26 ist außerdem mit einem Hubantrieb 38 verbunden, mittels welchem die Spindel 26 mit dem Schleifkopf 28 zwischen einer von der Transporteinrichtung 18 beabstandeten Inaktivstellung und einer zur Transporteinrichtung 18 zugestellten Aktivstellung hin- und herverstellbar ist. Das ist durch den Doppelpfeil 40 angedeutet.The grinding station 20 has a spindle 26 with a grinding head 28. The spindle 26 is rotatable about its central longitudinal axis 32 by means of a rotary drive 30. This is indicated by the arcuate arrow 34. The rotary actuator 30 is at a Sectionally cut drawn turntable 36 mounted. On the turntable 36 For example, a number of spindles 26 may be provided spaced apart from each other. The spindle 26 is also connected to a lifting drive 38, by means of which the spindle 26 with the grinding head 28 between one of the transport device 18 spaced Inaktivstellung and a sent to the transport device 18 active position back and is manufacturable. This is indicated by the double arrow 40.

Am Schleifkopf 28 ist ein Schleifband 42 vorgesehen, bei dem es sich vorzugsweise um ein Endlosschleifband handelt, das um zwei Umlenkrollen 44 umgelenkt ist, die am Schleifkopf 28 gelagert sind. Das Schleifband 42, bei dem es sich vorzugsweise um ein Diamantschleifband handelt, ist außerdem um eine Schleifbandvorschubrolle 46 umgelenkt, die am Schleifkopf 28 gelagert ist und die mit einem Reibrad 48 (sh. Figur 2) verdrehfest verbunden ist. Das Reibrad 48 ist ebenfalls am Schleifkopf 28 gelagert. Das Reibrad 48 bildet in Kombination mit einem Reibring 50 eine Schleifband-Vorschubeinrichtung 52. Der Reibring 50 ist starr vorgesehen bzw. mit dem Drehteller 36 fest verbunden, er umgibt die Spindel 26 konzentrisch. Der Reibring 50 weist einen Radius auf, der dem radialen Abstand des Reibrades 48 von der zentralen Längsachse 32 der Spindel 26 entspricht.At the grinding head 28, a grinding belt 42 is provided, which is preferably at an endless sanding belt, which is deflected around two pulleys 44, the at Grinding head 28 are mounted. The sanding belt 42, which is preferably a Diamond grinding belt is also about a grinding belt feed roller 46th deflected, which is mounted on the grinding head 28 and with a friction wheel 48 (see Figure 2) is rotationally connected. The friction wheel 48 is also mounted on the grinding head 28. The Friction wheel 48, in combination with a friction ring 50, forms an abrasive belt feed device 52. The friction ring 50 is rigidly provided or with the turntable 36th firmly connected, it surrounds the spindle 26 concentrically. The friction ring 50 has a Radius on the radial distance of the friction wheel 48 from the central longitudinal axis 32nd the spindle 26 corresponds.

In Figur 1 ist die Spindel 26 mit ihrem Schleifkopf 28 und dem am Schleifkopf 28 vorgesehenen Schleifband 32 in der zur Transporteinrichtung 18 zugestellten Aktiv- d.h. Schleifstellung gezeichnet. Demgegenüber verdeutlicht die Figur 2, in der gleiche Einzelheiten mit denselben Bezugsziffern wie in Figur 1 bezeichnet sind, die Spindel 26 mit dem Schleifkopf 28 und dem am Schleifkopf 28 vorgesehenen Schleifband 42 in ihrer von der Transporteinrichtung 18 beabstandeten Inaktivstellung. Der drehtellerfeste Reibring 50 ist an einer der Inaktivstellung der Spindel 26 zugeordneten Stelle starr, d.h. drehtellerfest, vorgesehen. In Figure 1, the spindle 26 with its grinding head 28 and the grinding head 28th provided grinding belt 32 in the delivered to the transport means 18 Aktiv-. Drawn grinding position. In contrast, Figure 2 illustrates, in the same Details with the same reference numerals as indicated in Figure 1, the spindle 26th with the grinding head 28 and provided on the grinding head 28 grinding belt 42 in her from the transport device 18 spaced inactive position. The turntable Friction ring 50 is rigid at a position associated with the spindle 26 in the inactive position, i. Turntable fixed, provided.

Die Spindel 26 ist als Hohlspindel ausgebildet und an ihrem vom Schleifkopf 28 entfernten Ende mit einem Kühlwasseranschluß 54 versehen. Zur Kühlung des Schleifbandes 42 während des Schleifvorgangs weist der Schleifkopf 28 eine Wasserdüseneinrichtung 56 (sh. Figur 2) auf, die über die als Hohlspindel ausgebildete Spindel 26 mit dem Kühlwasseranschluß 54 strömungstechnisch verbunden ist.The spindle 26 is formed as a hollow spindle and at its from the grinding head 28th provided with a cooling water connection 54. For cooling the Abrasive belt 42 during the grinding process, the grinding head 28 a Water nozzle device 56 (see Figure 2), which formed over the hollow spindle Spindle 26 is fluidically connected to the cooling water connection 54.

Oben wurde eine Ausbildung beschrieben, bei der die Spindel 26 der Schleifstation 20 zwischen einer Inaktivstellung und einer Aktivstellung hin- und herverstellbar ist, was durch den Doppelpfeil 40 angedeutet ist. Es ist auch möglich, daß die Spindel 26 der Schleifstation 20 axial unbeweglich angeordnet und daß der Transporteinrichtung 18 eine Hubeinrichtung 58 zugeordnet ist, die zum Zustellen des jeweils zu schleifenden Keramikgegenstandes 12, 14, 16 zum Schleifkopf 28 der in der Höhe nicht verstellbaren Spindel 26 vorgesehen ist.Above a training has been described, in which the spindle 26 of the grinding station 20th between an inactive position and an active position back and forth adjustable, what indicated by the double arrow 40. It is also possible that the spindle 26 of the Grinding station 20 arranged axially immovable and that the transport device 18 a Lifting device 58 is associated with the to be grounded to be grounded Ceramic article 12, 14, 16 to the grinding head 28 of the not adjustable in height Spindle 26 is provided.

Das Förderband 22 der Transporteinrichtung 18 und die Schleifstation 20 sind in einem (nicht gezeichneten) Gehäuse angeordnet, das einen Spritzschutz bildet, da während des Schleifvorgangs Kühlwasser spritzt.The conveyor belt 22 of the transport device 18 and the grinding station 20 are in one (not shown) housing arranged, which forms a splash guard, since during the Grinding process Coolant water splashes.

Die in den Figuren 1 und 2 dargestellte Schleifvorrichtung 10 dient zum Schleifen rotationssymmetrischer Keramikgegenstände 12, 14, 16. Die zu schleifenden Keramikgegenstände 12, 14, 16 ruhen auf dem rutschfesten endlosen Förderband 22 der Transporteinrichtung 18. Bei dem besagten Förderband handelt es sich beispielsweise um einen Zahnriemen mit einer rutschfesten Beschichtung und mit Rinnen, Rillen, Löchern o.dgl. zum definierten Ableiten des Kühlwassers. Der Schleifvorgang erfolgt im Durchlauf auf der Transporteinrichtung 18. Dabei wird entweder das um die zentrale Längsachse 32 der Spindel 26 rotierende Schleifband 42 zur Transporteinrichtung 18 mit Hilfe der Hubeinrichtung 38 zugestellt, oder es wird der zu schleifende Keramikgegenstand 12, 14, 16 vom Schleifband 42 mit Hilfe der Hubeinrichtung 58 zugestellt. In der aktiven Schleifstellung führt das Schleifband 42 in seiner Längsrichtung keine Bewegung durch, sondern es rotiert mit dem Schleifkopf 28, an dem es vorgesehen ist, um die zentrale Längsachse 32 der Spindel 26. Nach Durchführung des Schleifvorgangs wird die Spindel 26 in ihre Inaktivstellung verstellt, wobei das Reibrad 48 mit dem Reibring 50 in Berührung kommt und das Reibrad 48 infolge der Drehung der Spindel 26 eine Drehbewegung durchführt. Diese Drehbewegung des Reibrades 48 wird mittels eines Untersetzungsgetriebes 60 in eine entsprechend reduzierte Drehung der Schleifbandvorschubrolle 46 umgesetzt, so daß das endlose Schleifband 42 in der Inaktivstellung der Spindel 26 um einen definierten geringen Schleifbandabschnitt verstellt bzw. in seiner Längsrichtung vorgeschoben wird.The grinding apparatus 10 shown in FIGS. 1 and 2 is for grinding rotationally symmetrical ceramic objects 12, 14, 16. The sanding Ceramic articles 12, 14, 16 rest on the non-slip endless conveyor belt 22 of the Transport device 18. The said conveyor belt is, for example, a timing belt with a non-slip coating and with grooves, grooves, holes or the like. for defined discharge of the cooling water. The grinding process takes place in Pass on the transport device 18. This is either the central Longitudinal axis 32 of the spindle 26 rotating abrasive belt 42 to the transport device 18 with Help the lifting device 38 delivered, or it is to be ground Ceramic article 12, 14, 16 from the sanding belt 42 by means of the lifting device 58th delivered. In the active grinding position, the grinding belt 42 leads in its longitudinal direction no movement through, but it rotates with the grinding head 28 on which it is provided is about the central longitudinal axis 32 of the spindle 26. After performing the Grinding operation, the spindle 26 is adjusted to its inactive position, wherein the friction wheel 48 comes into contact with the friction ring 50 and the friction wheel 48 due to the rotation the spindle 26 performs a rotational movement. This rotational movement of the friction wheel 48 is by means of a reduction gear 60 in a correspondingly reduced rotation of Abrasive belt feed roller 46 implemented so that the endless abrasive belt 42 in the Inactive position of the spindle 26 by a defined small abrasive belt section adjusted or advanced in its longitudinal direction.

Claims (13)

Schleifvorrichtung für einen zu schleifenden Rand eines keramischen Geschirrgegenstandes oder eines keramischen Gefäßes (12, 14, 16), wie einer Tasse, eines Bechers, eines Tellers o.dgl., mit einer Transporteinrichtung (18) zum Transportieren des zu schleifenden Geschirrgegenstandes oder Gefäßes (12, 14, 16) zu einer Schleifstation (20) der Schleifvorrichtung (10), wobei die Transporteinrichtung (18) zum festen Halten des zu schleifenden Geschirrgegenstandes oder Gefäßes (12, 14, 16) vorgesehen ist und die Schleifstation (20) eine um ihre zentrale Längsachse (32) drehbare Spindel (26) mit einem Schleifkopf (28) aufweist, an dem ein Schleifband (42) vorgesehen ist, wobei der Schleifkopf (28) während des Schleifvorgangs bei sich nicht in seiner Längsrichtung bewegenden, stillstehendem Schleifband (42) eine Rotation um die zentrale Längsachse (32) der Spindel (26) ausführt.Grinding device for an edge of a ceramic to be ground Utensils or a ceramic vessel (12, 14, 16), such as a cup, a cup, a plate or the like, with a transport device (18) for Transporting the utensil or vessel to be ground (12, 14, 16) to a grinding station (20) of the grinding device (10), wherein the Transport device (18) for firmly holding the sanding Dishware or vessel (12, 14, 16) is provided and the grinding station (20) a about its central longitudinal axis (32) rotatable spindle (26) with a Grinding head (28) on which a grinding belt (42) is provided, wherein the Grinding head (28) during the grinding process, not in its longitudinal direction moving, stationary grinding belt (42) rotation about the central Longitudinal axis (32) of the spindle (26) performs. Schleifvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß die Transporteinrichtung (18) ein endloses Förderband (22) aufweist, an dem der zu schleifende Geschirrgegenstand oder das Gefäß (12, 14, 16) durch Haftreibung festgehalten wird.Grinding device according to claim 1,
characterized in that the transport means (18) comprises an endless conveyor belt (22) on which the utensil to be ground or the vessel (12, 14, 16) is held in place by static friction. Schleifvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß die Spindel (26) der Schleifstation (20) höhenverstellbar zwischen einer von der Transporteinrichtung (18) beabstandeten Inaktivstellung und einer zur Transporteinrichtung (18) zugestellten Aktivstellung verstellbar ist. Grinding device according to claim 1,
characterized in that the spindle (26) of the grinding station (20) adjustable in height between an inactive position spaced from the transport device (18) and an active position delivered to the transport device (18) is adjustable. Schleifvorrichtung nach Anspruch 3,
dadurch gekennzeichnet, daß zum Vorschub des Schleifbandes (42) in der Inaktivstellung der Spindel (26) um einen definierten Schleifbandabschnitt eine Schleifband-Vorschubeinrichtung (52) vorgesehen ist.Grinding device according to claim 3,
characterized in that for advancing the sanding belt (42) in the inactive position of the spindle (26) to a defined abrasive belt section, a sanding belt feed device (52) is provided. Schleifvorrichtung nach Anspruch 4,
dadurch gekennzeichnet, daß die Schleifband-Vorschubeinrichtung (52) einen Reibring (50) und ein Reibrad (48) aufweist, wobei der Reibring (50), die Spindel (26) konzentrisch umgebend, an einer der Inaktivstellung der Spindel (26) zugeordneten Stelle ortsfest vorgesehen ist, das Reibrad (48) am Schleifkopf (28) der Spindel (26) gelagert und von der Spindellängsachse (32) radial gleich weit wie der Reibring (50) beabstandet ist, und das Reibrad (48) mit einer am Schleifkopf (28) gelagerten Schleifbandvorschubrolle (46) verbunden ist, die mit dem Schleifband (42) reibschlüssig verbunden ist.Grinding device according to claim 4,
characterized in that the sanding belt feed means (52) comprises a friction ring (50) and a friction wheel (48), the friction ring (50) concentrically surrounding the spindle (26) at a position associated with the inactive position of the spindle (26) is stationary, the friction wheel (48) mounted on the grinding head (28) of the spindle (26) and of the spindle longitudinal axis (32) radially equidistant as the friction ring (50) is spaced, and the friction wheel (48) with a grinding head ( 28) mounted abrasive belt feed roller (46) is connected, which is frictionally connected to the grinding belt (42). Schleifvorrichtung nach Anspruch 5,
dadurch gekennzeichnet, daß zwischen dem Reibrad (48) und der Schleifbandvorschubrolle (46) ein Untersetzungsgetriebe (60) vorgesehen ist.Grinding device according to claim 5,
characterized in that a reduction gear (60) is provided between the friction wheel (48) and the grinding belt feed roller (46). Schleifvorrichtung nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß das Schleifband (42) ein Endlosschleifband ist.Grinding device according to one of claims 1 to 6,
characterized in that the abrasive belt (42) is an endless abrasive belt. Schleifvorrichtung nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß das Schleifband (42) ein Diamantschleifband ist.Grinding device according to one of claims 1 to 7,
characterized in that the abrasive belt (42) is a diamond abrasive belt. Schleifvorrichtung nach einem der Ansprüche 5 bis 8,
dadurch gekennzeichnet, daß das Schleifband (42) um zwei voneinander beabstandete, am Schleifkopf (28) der Spindel (26) gelagerte Umlenkrollen (44) umgelenkt ist, wobei die Schleifbandvorschubrolle (46) mittig zwischen den beiden Umlenkrollen (44) vorgesehen ist.Grinding device according to one of claims 5 to 8,
characterized in that the sanding belt (42) is deflected about two spaced, on the grinding head (28) of the spindle (26) mounted deflection rollers (44), wherein the sanding belt feed roller (46) is provided centrally between the two deflection rollers (44). Schleifvorrichtung nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, daß der Schleifkopf (28) zur Kühlung des Schleifbandes (42) eine Wasserdüseneinrichtung (56) aufweist.Grinding device according to one of claims 1 to 9,
characterized in that the grinding head (28) for cooling the abrasive belt (42) has a water nozzle device (56). Schleifvorrichtung nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet, daß die Spindel (26) als Hohlspindel ausgebildet ist und einen Kühlwasseranschluß (54) aufweist.Grinding device according to one of claims 1 to 10,
characterized in that the spindle (26) is designed as a hollow spindle and has a cooling water connection (54). Schleifvorrichtung nach einem der Ansprüche 1 bis 11,
dadurch gekennzeichnet, daß die Spindel (26) mit einem Drehantrieb (30) und mit einem Hubantrieb (38) verbunden ist.Grinding device according to one of claims 1 to 11,
characterized in that the spindle (26) with a rotary drive (30) and with a lifting drive (38) is connected. Schleifvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß die Spindel (26) der Schleifstation (20) ortsfest angeordnet ist, und daß der Transporteinrichtung (18) zum Zustellen des zu schleifenden Geschirrgegenstandes oder Gefäßes (12, 14, 16) zum Schleifkopf (28) der Schleifspindel (26) eine Hubeinrichtung (58) zugeordnet ist.Grinding device according to claim 1,
characterized in that the spindle (26) of the grinding station (20) is arranged stationary, and in that the transport device (18) for feeding the dishware or vessel (12, 14, 16) to be ground to the grinding head (28) of the grinding spindle (26) a lifting device (58) is assigned.
EP20020017960 2001-09-12 2002-08-10 Polishing device for grinding the edge of a ceramic kitchenware Expired - Lifetime EP1293294B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001144968 DE10144968C1 (en) 2001-09-12 2001-09-12 Edge grinding machine for ceramic objects has rotary spindle at grinding station fitted with grinding head having endless grinding band
DE10144968 2001-09-12

Publications (2)

Publication Number Publication Date
EP1293294A1 true EP1293294A1 (en) 2003-03-19
EP1293294B1 EP1293294B1 (en) 2007-04-25

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Application Number Title Priority Date Filing Date
EP20020017960 Expired - Lifetime EP1293294B1 (en) 2001-09-12 2002-08-10 Polishing device for grinding the edge of a ceramic kitchenware

Country Status (3)

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EP (1) EP1293294B1 (en)
DE (2) DE10144968C1 (en)
PL (1) PL199998B1 (en)

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DE102004057436B3 (en) * 2004-11-27 2006-03-02 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Grinding device for edge of ceramic object has grinding belt device pivoted to pendulum axis perpendicular to longitudinal direction of grinding belt
CN108527086A (en) * 2018-07-03 2018-09-14 东莞理工学院 A kind of spray sand type revolving body seal groove polishing machine
CN109732435A (en) * 2019-03-19 2019-05-10 中山市新晟合成材料有限公司 Carbon fiber processing guide margin machine and its processing technology
CN110421443A (en) * 2019-07-17 2019-11-08 晋江力达机械有限公司 A kind of high efficiency edging process equipment
CN112171457A (en) * 2020-09-28 2021-01-05 宋黎明 Household articles mould intelligent manufacturing is with adjusting equipment of polishing
CN112428099A (en) * 2020-11-05 2021-03-02 宁正虎 Bowl bottom polishing device for porcelain processing

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006013400A1 (en) * 2006-03-23 2007-09-27 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Grinding device for grinding the foot of a ceramic or porcelain article
DE102010023896A1 (en) 2010-06-16 2011-12-22 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Non-rotationally symmetric ceramic article e.g. cup, edge grinding method, involves executing relative movement between grinding head and ceramic article as linear or arc shaped back and forth movement transverse to longitudinal extent
CN113305685B (en) * 2021-06-24 2023-05-09 江门市新会区新兴金属制品有限公司 Metal dish equipment of polishing for tableware production

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057436B3 (en) * 2004-11-27 2006-03-02 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Grinding device for edge of ceramic object has grinding belt device pivoted to pendulum axis perpendicular to longitudinal direction of grinding belt
CN108527086A (en) * 2018-07-03 2018-09-14 东莞理工学院 A kind of spray sand type revolving body seal groove polishing machine
CN109732435A (en) * 2019-03-19 2019-05-10 中山市新晟合成材料有限公司 Carbon fiber processing guide margin machine and its processing technology
CN110421443A (en) * 2019-07-17 2019-11-08 晋江力达机械有限公司 A kind of high efficiency edging process equipment
CN112171457A (en) * 2020-09-28 2021-01-05 宋黎明 Household articles mould intelligent manufacturing is with adjusting equipment of polishing
CN112428099A (en) * 2020-11-05 2021-03-02 宁正虎 Bowl bottom polishing device for porcelain processing

Also Published As

Publication number Publication date
PL355744A1 (en) 2003-03-24
PL199998B1 (en) 2008-11-28
EP1293294B1 (en) 2007-04-25
DE50210019D1 (en) 2007-06-06
DE10144968C1 (en) 2003-01-16

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