EP0488143B1 - Méthode pour le meulage des surfaces de support d'articles en céramique - Google Patents

Méthode pour le meulage des surfaces de support d'articles en céramique Download PDF

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Publication number
EP0488143B1
EP0488143B1 EP91120146A EP91120146A EP0488143B1 EP 0488143 B1 EP0488143 B1 EP 0488143B1 EP 91120146 A EP91120146 A EP 91120146A EP 91120146 A EP91120146 A EP 91120146A EP 0488143 B1 EP0488143 B1 EP 0488143B1
Authority
EP
European Patent Office
Prior art keywords
grinding
foot
station
counter
stations
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91120146A
Other languages
German (de)
English (en)
Other versions
EP0488143A1 (fr
Inventor
Ottmar Zeitler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heinrich Zeidler Maschinenfabrik & Cokg GmbH
Original Assignee
Heinrich Zeidler Maschinenfabrik & Cokg GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heinrich Zeidler Maschinenfabrik & Cokg GmbH filed Critical Heinrich Zeidler Maschinenfabrik & Cokg GmbH
Publication of EP0488143A1 publication Critical patent/EP0488143A1/fr
Application granted granted Critical
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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
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
    • 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
    • B24B21/18—Accessories
    • B24B21/22—Accessories for producing a reciprocation of the grinding belt normal to its direction of movement
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0023—Other grinding machines or devices grinding machines with a plurality of working posts

Definitions

  • the invention relates to a method for grinding the base surfaces of ceramic articles and the like with a round, rectangular or oval shape.
  • Such a method, as described in the preamble of claim 1, is known from DE-A-36 36 606.
  • the method according to the invention is intended for processing, in particular for grinding large ceramic articles such as plates, bowls and the like, which, because of their size, are provided with a counter foot or web which is formed in addition to their normal foot.
  • This counter foot must be attached with the appropriate article size, otherwise the central area will sag downwards in the event of fire.
  • the articles had previously been passed by hand over a demolition table, where both the foot and the counter foot were ground flat on a flat surface that was covered with an abrasive. This created sharp-edged surfaces that always caused scratch marks when using the articles on tables and on the tops of the articles when stacking.
  • US-A-49 39 870 shows a grinding machine and a method for grinding in a vertical and horizontal position.
  • a grinding wheel head can be adjusted from the vertical position into the horizontal position, whereby it can be the drive for a grinding belt in both positions.
  • the grinding belt vibrates, the drive of which is connected to an eccentric wheel via a worm gear.
  • DE-A-36 36 602 also shows a device and a method for grinding the feet of ceramic products.
  • the plates, plates, bowls and terrines arrive at a four-part turnstile provided with suction cups. This turnstile is clocked at 90 °, the suction devices picking up a product, transporting it to a first belt grinding station and, after a further clock cycle, to a second belt grinding station.
  • a plane-parallel sanding is carried out with sanding belts of different sizes. A separate processing of a counter foot is not possible with this device.
  • WO-A-89/03 279 shows a circulation table which converts a rotary movement into a flatter circular movement without rotation.
  • These circulation tables with planetary orbit are used for machining round holes or recesses in metallic workpieces, where rotating grinding and polishing wheels have to follow a certain surface course.
  • the invention is therefore based on the object to provide a method for grinding ceramic articles with which all special foot shapes can be ground.
  • both the foot and the counter foot or web are ground in at least two consecutive separate stations, the counter foot always being ground in the first station and the workpiece and / or the grinding tool being at least during the grinding of the counter foot rotates eccentrically.
  • the turntable 18 also has a trough in which the water used for grinding and the grinding residues carried therein are collected.
  • the arrangement of the grinding device for the counter foot 16 in front of all other grinding stations has the purpose that the grinding residues occurring here in the center are conveyed to the outside by the rotation of the articles and the centrifugal force thus occurring during the subsequent operations.
  • Carriers 20 are provided in all grinding stations, to which the grinding tools are fastened by means of screw connections.
  • FIGS. 2 and 3 represent the station II , in which a grinding device for the counter foot 16 is provided.
  • the plates rest on workpiece holders 14 , which can be formed from metal or plastic.
  • the workpiece holder 14 is arranged here, for example, eccentrically with respect to the axis A of the shaft 24 .
  • the grinding belt 30 rests on the counter foot 16 . After each sanding operation, the sanding belt 30 advances by a length which is dependent on the length of the counter foot. For this purpose, grinding belt 30 is unwound from one spool 32 and wound onto the spool 34 which interacts with it, both of which are fastened to the carrier 20 . Also on the carrier 20 is the piston-cylinder unit 36 , with which the height for the grinding block 38 can be roughly adjusted. The height and contact pressure fine adjustment for the grinding block 38 is based on the tension spring 40 , which sits at the end of the rod 42 , at the other end of which a vibrator 44 is located as an intermediate member to the grinding block. The pneumatic one Vibrator 44 generated vibrations increase the grinding effect of the grinding belt, the contact pressure can also be varied from the adjusting screw.
  • the elastic pad 46 includes the counter foot edges during grinding, whereby the grinding belt 30 creates round transitions.
  • Fig. 3 shows the grinding station II shown in Fig. 2 with the plate 12 rotated by 180 °, so that the counter foot 16 is shown in cross section.
  • the workpiece holder 14 is attached to the axis A on the shaft 24 . The same effect would result in an eccentric position of the plate on the workpiece holder 14 .
  • Guide rollers 48 are shown on the left and right of the vibrator 44 .
  • the station III shown in Fig. 4 is almost identical to the stations IV and V.
  • This station (s) is / are set up for sanding the foot 17 , for which a sanding belt 30 transported in cycles is also used.
  • an elastic roller 50 is provided for this purpose, which presses the grinding belt 30 against the foot 17 and thus simultaneously processes the standing surface and the edges.
  • the length of the roller 50 is based on the difference in diameter of the foot 17 , which can be considerable in the case of oval and almost rectangular plates 12 .
  • the Entire grinding station with a spring, not shown, able to adapt to the changed height level.
  • roll 50 is inclined. This is done by adjusting the screw 52 .
  • the roller 50 is shown inclined to the left here. Likewise, however, the roller can also be inclined to the right if this becomes necessary by changing the direction of rotation of the workpiece holder 14 or by processing other articles with special foot shapes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Claims (1)

  1. Méthode à meuler des surfaces de support d'articules en céramique ou similaires à une forme ronde, rectangulaire ou ovale, leurs surfaces de support étant formées d'un pied (17) et un contre-pied (16) ou respectivement une traverse, dans une meuleuse à plusieurs postes individuels (II, III, IV, V) qui comprennent un outil abrasif et un porte-pièce (14),
    caractérisé en ce
    que ledit pied (17) et de même ledit contre-pied (16) ou respectivement la traverse sont meulés dans au moins deux postes séparés successifs (II, III, IV, V), ledit contre-pied étant toujours meulé au premier poste (II) et la pièce et/ou ledit outil abrasif tournant de façon excentrique au moins pendant le meulage dudit contre-pied (16).
EP91120146A 1990-11-29 1991-11-26 Méthode pour le meulage des surfaces de support d'articles en céramique Expired - Lifetime EP0488143B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4038031 1990-11-29
DE4038031A DE4038031A1 (de) 1990-11-29 1990-11-29 Verfahren und vorrichtung zum schleifen der standflaechen keramischer artikel

Publications (2)

Publication Number Publication Date
EP0488143A1 EP0488143A1 (fr) 1992-06-03
EP0488143B1 true EP0488143B1 (fr) 1995-04-12

Family

ID=6419186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91120146A Expired - Lifetime EP0488143B1 (fr) 1990-11-29 1991-11-26 Méthode pour le meulage des surfaces de support d'articles en céramique

Country Status (2)

Country Link
EP (1) EP0488143B1 (fr)
DE (2) DE4038031A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4400559A1 (de) * 1994-01-11 1995-07-13 Voit Michael Gmbh Verfahren und Vorrichtung zum Schleifen und/oder Polieren, insbesondere von Fußteilen von glasiertem und gebranntem Ton- oder Porzellangut
DE4413896C1 (de) * 1994-04-21 1995-02-09 Lippert Masch Stahlbau J Maschine zum Schleifen des Randes hohler Gefäße
DE102010023896A1 (de) * 2010-06-16 2011-12-22 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Verfahren zum Schleifen eines Randes eines keramischen Gegenstandes und entsprechende Schleifvorrichtung
ITMI20111392A1 (it) * 2011-07-26 2013-01-27 Ghidini Felice Italo E C Srl Macchina per sbavatura e/o smerigliatura e/o satinatura e/o pulitura e/o brillantatura di pezzi
CN103522155A (zh) * 2013-10-28 2014-01-22 江苏大唐机械有限公司 切苇刀磨床
DE102017101115A1 (de) 2017-01-20 2018-07-26 Lippert Gmbh & Co. Kg Schleifvorrichtung zum Schleifen von flachem Schleifgut
CN109822429B (zh) * 2019-04-08 2020-03-06 中国石油大学(华东) 用于制备金属电子背散射衍射试样的振动抛光机
CN116604425B (zh) * 2023-07-19 2023-10-13 常州埃森诺精密模具有限公司 一种高强度太阳能光伏支撑连接件生产装置及生产工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636602A1 (de) * 1985-11-29 1987-06-04 Ve Wissenschaftlich Tech Betri Schleifanlage fuer feinkeramische erzeugnisse
WO1989003279A1 (fr) * 1987-10-13 1989-04-20 Extrude Hone Corporation Table orbitale pour machine-outils

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741076A (en) * 1951-02-14 1956-04-10 Shenaugo Pottery Company Ware foot abrading machine
DE1103801B (de) * 1953-04-20 1961-03-30 Otto Assmann Maschine zum Schleifen und Polieren der Fuesse und Raender von Tellern, Tassen, Schuesseln u. dgl.
US4939870A (en) * 1989-04-14 1990-07-10 Wang Tien Wang Vertical/horizontal double-way grinding type abrasive belt grinder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636602A1 (de) * 1985-11-29 1987-06-04 Ve Wissenschaftlich Tech Betri Schleifanlage fuer feinkeramische erzeugnisse
WO1989003279A1 (fr) * 1987-10-13 1989-04-20 Extrude Hone Corporation Table orbitale pour machine-outils

Also Published As

Publication number Publication date
DE4038031A1 (de) 1992-06-04
DE4038031C2 (fr) 1992-11-12
EP0488143A1 (fr) 1992-06-03
DE59105170D1 (de) 1995-05-18

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