EP2002929A1 - Vorrichtung zur Glättung eines Produkts, im Besonderen eines halbfertigen Keramikprodukts - Google Patents

Vorrichtung zur Glättung eines Produkts, im Besonderen eines halbfertigen Keramikprodukts Download PDF

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Publication number
EP2002929A1
EP2002929A1 EP08153705A EP08153705A EP2002929A1 EP 2002929 A1 EP2002929 A1 EP 2002929A1 EP 08153705 A EP08153705 A EP 08153705A EP 08153705 A EP08153705 A EP 08153705A EP 2002929 A1 EP2002929 A1 EP 2002929A1
Authority
EP
European Patent Office
Prior art keywords
belt
arm
roller
negative pressure
way
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
EP08153705A
Other languages
English (en)
French (fr)
Other versions
EP2002929B1 (de
Inventor
Giorgio Sarani
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.)
Sacmi Imola SC
Original Assignee
Sacmi Imola SC
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 Sacmi Imola SC filed Critical Sacmi Imola SC
Priority to PL08153705T priority Critical patent/PL2002929T3/pl
Publication of EP2002929A1 publication Critical patent/EP2002929A1/de
Application granted granted Critical
Publication of EP2002929B1 publication Critical patent/EP2002929B1/de
Active legal-status Critical Current
Anticipated expiration legal-status 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
    • 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
    • B24B21/16—Machines or devices using grinding or polishing belts; Accessories therefor for grinding other surfaces of particular shape
    • 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
    • B24B55/08—Dust extraction equipment on grinding or polishing machines specially designed for belt grinding machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
    • B28B11/0845—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for smoothing

Definitions

  • This invention relates preferably to ceramics technology for the manufacture of ceramic products by casting a suspension in water of a clayey raw material (known as "slip") in porous moulds to obtain semi-finished sanitaryware such as washbasins, bidets and similar articles.
  • a clayey raw material known as "slip”
  • the invention relates in particular to an apparatus for finishing these products by smoothing their surfaces during the manufacturing process while they are still in “states” that allow abrasive means to be used on them with the aid of liquids to facilitate their machinability, that is to say, when they are in the "green” and “leather hard” states.
  • the surface smoothing of semi-finished ceramic products obtained by slip casting is preferably performed when the products are in the "green” state (that is to say, solid but still having a water content of between 17% and 20% by weight - and hence still subject to plastic deformation) or in the "leather hard” state (with a water content normally less than 13%, where the product, although rigid, can still be worked with a wet smoothing tool).
  • smoothing can also be performed when the product is already in the "dry” state, that is, having a water content normally below 2%.
  • a prior art apparatus - described in document EP 640.450 - comprises a finishing tool that can be automatically regenerated continuously while working.
  • the tool comprises a power-driven endless abrasive belt trained around three pulleys positioned in space in such a way as to subtend the belt to a form closed, three-sided figure comprising an active section, a passive section and a transmission section.
  • the passive section is associated with a tank containing a liquid through which the passive section moves and remains permanently dipped.
  • the semi-finished product to be smoothed held by a robot-controlled mechanical manipulator, is suitably oriented in space and moved into contact with the active belt section which slides tangentially over the surface of the semi-finished product to remove burs and other surface irregularities.
  • the particles of ceramic material removed are trapped in the material structure of the abrasive belt's active section and are washed away when the active section moves on to become the passive section and is dipped into the tank.
  • the method described above has inherent disadvantages, one of which is the fact that it involves moving the semi-finished product and keeping the smoothing apparatus stationary, the apparatus being much lighter in weight than the product.
  • Another disadvantage is that smoothing using the method described above is relatively easy if the surfaces to be smoothed are convex but, on the contrary, is considerably difficult, or even impossible, if the surfaces are concave.
  • the patterns of motion involved in the manipulation of the product may be very complicated, which means that the parts of the product that come into contact with the robot are subjected to stress that is not always negligible and are therefore liable to damage.
  • rotary tools such as cylindrical sponges
  • These tools are rotated while the product (especially "greenware") is held stationary in a predetermined position.
  • the smoothing apparatus according to the invention, labelled 1 in its entirety, is used to smooth a product 2 (illustrated schematically since it does not strictly form part of the invention), in particular, a semi-finished ceramic product obtained by casting a liquid mixture (known as "slip" in the jargon of the trade) in a moulding cavity formed by at least two parts of a mould.
  • a product 2 illustrated schematically since it does not strictly form part of the invention
  • a semi-finished ceramic product obtained by casting a liquid mixture (known as "slip" in the jargon of the trade) in a moulding cavity formed by at least two parts of a mould.
  • the apparatus 1 basically comprises an abrasive tool 3 in the form of an endless belt 4 which (in the embodiment illustrated) is trained around at least one pair of pulleys 5 and 6, at least one which is power-driven (by a respective motor 5m), and which defines an active section 7 and a passive section 8 of the belt 4:
  • the apparatus 1 also comprises:
  • the means 20 enable the apparatus 1 to be associated with a manipulator 21, preferably robot-controlled (partly illustrated since it is of known type).
  • the above mentioned structure 20 may comprise a swinging mounting arm 22 (see arrow F22) pivoted at 22a to a support 23 connected to flanged means 24 for connection to the manual or robot-controlled manipulator 21.
  • the lower pulley 6 of the belt 4 is rotatably connected to the first arm 22, at the lower end of the first arm 22.
  • the upper end of the arm 22 is associated with a counterweight 25 for balancing the centre of gravity of the first arm 22 itself, and hence of the belt 4: in this way, the belt 4 is kept in a neutral positional configuration independent of the position adopted by the apparatus 1 as a whole. In other words, the belt 4 and the first arm 22 remain in a static, substantially stationary, configuration, especially during movements towards and away from the product 2.
  • the first arm 22 is also provided with adjustable limit stop and contact means 26 acting between the first arm 22 and the support 23 and designed to permit adjustment of at least one stable end position where the first arm 22 is angularly closest to the support 23 and where movement towards the belt 4 is stopped when the belt 4 comes into contact with the product 2.
  • the invention contemplates the provision of pushing means 100 composed of a cylinder 101 mounted on the support 23 and acting on a roller 102 that is keyed to the first arm 22 and positioned eccentrically with respect to its pivot point 22a: in this way, the active section 7 of the belt 4 may apply a predetermined contact force on the product 2, even in combination with the manipulator 21, according to the pushing force exerted by the cylinder 101 (see arrow F101) on the eccentric roller 102.
  • the numeral 103 indicates a block (see Figure 1 ) representing control means acting on the cylinder 101 and designed to activate and deactivate the cylinder 101, when required, deactivation of the cylinder 101, obviously, causing the first arm 22 to return to a neutral position.
  • the limit stop and contact means 26 are located at two different points of the first arm 22 and each consists of a threaded rod 27 protruding transversally from the first arm 22 and screwed into a respective hole 28 made in the first arm 22.
  • Each of the rods 27 has an end head 29 designed to come into contact, in use, with respective zones of the support 23.
  • the above mentioned lower pulley 6 is connected by its mounting shaft 6a, to the inside of a slot 30 made in the first arm 22 and in such a way that, when required, it can be moved (arrow F30) to adjust the tension of the belt 4 by slackening the shaft 6a from the slot 30 and, if necessary, to change the belt 4 itself.
  • the above mentioned upper pulley 5 of the belt 4 is connected to its drive 5m which is in turn mounted on a bracket 32 protruding from the first arm 22.
  • the belt 4 is made of a material that absorbs liquid - for example water - which is sprayed on the belt 4 by the above mentioned spraying means 10 which the apparatus 1 is equipped with.
  • the liquid spraying means 10 are located in the vicinity of the belt 4 itself.
  • the means 10 may be mounted directly on contact means 18 (described in more detail below) and comprise nozzles for spraying liquid on the belt 4.
  • the spray means 10 may consist of a plurality of nozzles 10a, fed by a respective source 10b, positioned upstream of the negative pressure means 9 relative to a direction of rotation (indicated by the arrow S) of the belt 4 in such a way that they face a portion of the passive section 8 of the belt 4.
  • the apparatus 1 also comprises negative pressure means 9 which are associated with the passive section 8 of the belt 4 and which are designed to remove from the belt 4 the liquid sprayed onto it by the spraying means 10 together with the process waste material removed and retained by the belt 4 during the active stage of the smoothing process and transferred to the passive stage of the smoothing process.
  • the negative pressure means 9 include, in particular, a roller 11 which rotates freely about its axis of rotation 15 and which is in direct, tangential contact with the passive section 8 of the belt 4.
  • the roller 11 cylindrical in shape, is rotatably coupled coaxially with a hollow pin 17 that defines a cavity 12 inside it.
  • the roller 11 also has a cylindrical outside lateral operating surface 11a provided with a plurality of through holes 11b designed to allow the outside and the inside of the cavity 12 to communicate through a slot 17c formed on the hollow pin 17 in such a way as to face the passive section 8 of the belt 4.
  • the lateral surface 11a of the roller 11 has shoulders 16 having an enveloping shape matching the opposite longitudinal edges of the belt 4.
  • the cavity 12 inside the hollow pin 17 is designed to suck the liquid and the smoothing process waste material out through the roller 11, that is to say, through the holes 11b in the lateral surface 11a and through the slot 17c; the suction being produced by: the negative pressure created inside the cavity 12 by the fluid connection of the cavity 12 with vacuum generating means 31m such as, for example, a vacuum pump, represented as a block in Figure 3 since they are entirely conventional; as well as by the direct connection of the cavity 12 with the holes 11b, through the slot 17c in the pin 17.
  • vacuum generating means 31m such as, for example, a vacuum pump, represented as a block in Figure 3 since they are entirely conventional
  • the roller 11 turns freely together with the belt 4 and when the portion of the roller 11 surface with the holes 11b comes into contact with the passive section 8 and the holes coincide with the slot 17c, the process waste material is removed from the passive section 8 by the suction produced.
  • the roller 11 is held in direct, forced contact with the belt 4 by contact means 18 which include a mounting arm 18a and elastic elements 19 interposed between the roller 11 and the first arm 22 and which operate in such a way as to compress the roller 11 against the belt 4 so as to maximize the effect of the seal and, hence, the effectiveness of suction.
  • contact means 18 which include a mounting arm 18a and elastic elements 19 interposed between the roller 11 and the first arm 22 and which operate in such a way as to compress the roller 11 against the belt 4 so as to maximize the effect of the seal and, hence, the effectiveness of suction.
  • Figures 4 to 7 illustrate a second embodiment of the apparatus 1.
  • the belt 4 mounting structure 20 comprises:
  • the support 35 also has in the middle of it an auxiliary idle wheel 36 that is rotatably connected to the support 35 and in bilateral contact with a protruding internal profile of the belt 4 in such a way as to enable the latter to slide more easily.
  • the spraying means 10, the negative pressure means 9, the upper pulley 5 and the related drive 5m are mounted on a first member 60 located inside the frame 33 and pivoted at end of it and at 60a to the frame 33 itself.
  • the member 60 is acted upon by tensioning means 61, composed of a cylinder 62 located at the bottom of the frame 33, protruding vertically inside the frame 33 and acting on an idle roller 63 connected, at 63a, to the member 60 and positioned eccentrically with respect to the pivot point 60a of the member: in this way, moving the member 60 up or down (see arrow F60, Figure 4 ) moves the upper pulley 5 in such a way as to tension or slacken the belt 4.
  • tensioning means 61 composed of a cylinder 62 located at the bottom of the frame 33, protruding vertically inside the frame 33 and acting on an idle roller 63 connected, at 63a, to the member 60 and positioned eccentrically with respect to the pivot point 60a of the member: in this way, moving the member 60 up or down (see arrow F60, Figure 4 ) moves the upper pulley 5 in such a way as to tension or slacken the belt 4.
  • the numeral 64 indicates a block (see Figures 4 to 7 ) representing control means acting on the cylinder 62 and designed to activate and deactivate the cylinder 62, when required and in such a way as to control the force applied by the cylinder 62 to the roller 63, thus keeping the tension of the belt 4 under control.
  • the spraying means 10 and the negative pressure means 9 are made in a portion 37 of the member 60 that is pivoted at 37a to the member 60 itself, in such a way as to enable the portion 37 to rotate between:
  • the negative pressure means 9 are composed of a closed cylindrical chamber 65 provided with a slit 65a (see Figure 7 ) that can be positioned to face the passive section 8 of the belt 4 when the portion 37 is in the lowered position.
  • the negative pressure is generated in the chamber 65 using suitable means 65b which, in this case, purely by way of example, are embodied by a Venturi unit, partly illustrated in Figure 7 , through which the process waste material is removed by suction, channelled into the pipe 65c (see arrow F65c) and then expelled.
  • suitable means 65b which, in this case, purely by way of example, are embodied by a Venturi unit, partly illustrated in Figure 7 , through which the process waste material is removed by suction, channelled into the pipe 65c (see arrow F65c) and then expelled.
  • the spraying means 10 comprise two sets of nozzles 10a made on the portion 37 on opposite sides of the cylindrical chamber 65: the liquid supply means 10b are, obviously, activated by one or the other of the sets of nozzles 10a depending on the rotation direction S of the belt 4 and in such a way that the belt 4 is always sprayed before it moves past the cylindrical chamber 65: that means the belt 4 can operate in both directions of rotation.
  • Means 38 are provided between the portion 37 and the member 60 for locking the containing portion 37 in the lowered operating position so that it can be positioned stably over the belt 4.
  • the locking means 38 comprise a vertical lever 39 pivoted at one of it, at 39a, to the member 60 and snappingly engageable, at it its free opposite end, with a pin 40 that protrudes laterally from the portion 37 and that can be positioned near the lever 39 when the portion 37 is in the lowered operating position.
  • An elastic element 41 is interposed between the lever 39 and the member 60 so as to keep the lever 39 constantly in contact with the pin 40.
  • adjustable limit stop means 70 are provided between the portion 37 and the member 60: the means 70 comprise a bolt 70a screwed into a threaded through hole made in the portion 37 in such a way that its lower end comes into contact with a surface of the member 60 when the portion 37 is in the lowered position.
  • Screwing or unscrewing the bolt 70a thus moves the portion 37 towards or away from the belt 4, according to the thickness of the belt 4 and its state of wear, and, hence, according to the need to move the cylindrical suction chamber 65 towards or away from the passive section 8 of the belt 4.
  • the belt 4 may have a quadrangular cross section and regular thickness, or a quadrangular cross section and regular thickness with an internal protruding profile running along the middle of it (see Figure 8 ) to guide the belt 4 more effectively around the drive pulleys.
  • the apparatus 1 made as described above makes it possible to smooth a generic product 2 of any shape held stationary while only the tool 3 moves.
  • the robot-controlled manipulator required to drive the tool 3 may be relatively small and inexpensive.
  • the possibility of orienting the belt 4 quite freely makes it possible to expose the product 2 not only to the active sections 7 of the belt 4 but also to the portions of it, for example, close to the curved area where the belt 4 moves around the pulleys.
  • the tool 3 can work also on small and/or, if necessary, even concave, parts of the surface of the product 2.
  • the belt 4 is regenerated by a forced suction system that not only has no influence on the structure of the apparatus 1 but also has the advantage of being very effective in removing process waste material and thus provides high regenerating performance.
  • Another advantageous aspect of the invention is due to the fact that the two drive units described above can be used for a plurality of products 2 of different shapes and sizes, with obvious advantages in terms of versatility because the apparatus 1 is applicable to a wide range of generic products 2.
  • the special structure of the rigid support 35 allows the belt 4 to be positioned even horizontally to be able to work even on parts of the product 2 that are difficult to access, which is added to the fact that use of the curved belt section at the upper pulley 5 as the regeneration area makes it possible to have two active sections of the belt 4 available at all times.
  • the roller 11 is mounted laterally of the two pulleys 5 and 6 around which the belt is trained and acts as a tensioner of the belt 4 thanks to the compression it exerts on the passive section 8.
  • roller 11 could be integrated into one of the pulleys 5 or 6 around which the belt 4 is trained, the belt being in this case a Moebius belt (as clearly illustrated in Figure 9 ).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Ceramic Products (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Filtration Of Liquid (AREA)
EP08153705A 2007-06-12 2008-03-31 Vorrichtung zur Glättung eines Produkts, im Besonderen eines halbfertigen Keramikprodukts Active EP2002929B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08153705T PL2002929T3 (pl) 2007-06-12 2008-03-31 Urządzenie do wygładzania wyrobu, zwłaszcza półproduktu wyrobu ceramicznego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000411A ITBO20070411A1 (it) 2007-06-12 2007-06-12 Apparato per levigare un prodotto, in particolare un semilavorato ceramico.

Publications (2)

Publication Number Publication Date
EP2002929A1 true EP2002929A1 (de) 2008-12-17
EP2002929B1 EP2002929B1 (de) 2012-07-11

Family

ID=39769400

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08153705A Active EP2002929B1 (de) 2007-06-12 2008-03-31 Vorrichtung zur Glättung eines Produkts, im Besonderen eines halbfertigen Keramikprodukts

Country Status (9)

Country Link
US (1) US20080311824A1 (de)
EP (1) EP2002929B1 (de)
CN (1) CN101323134B (de)
BR (1) BRPI0801682A2 (de)
ES (1) ES2391423T3 (de)
IT (1) ITBO20070411A1 (de)
MX (1) MX2008007636A (de)
PL (1) PL2002929T3 (de)
RU (1) RU2458789C2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017069696A1 (en) * 2015-10-21 2017-04-27 Singapore Technologies Aerospace Ltd A grinding module, a grinding machine and a method for grinding
DE102017124326A1 (de) * 2017-10-18 2019-04-18 Ferrobotics Compliant Robot Technology Gmbh Robotergestützte Schleifvorrichtung
CN109623590B (zh) * 2018-11-23 2020-09-18 华中科技大学 一种全数字式刚柔耦合精准力控磨抛装置及控制方法
CN109773658A (zh) * 2019-01-25 2019-05-21 福建省国巨智能科技有限公司 一种环保型工件外表面高效打磨抛光系统及方法
CN113579943B (zh) * 2021-08-06 2023-07-18 江苏库纳实业有限公司 一种铝型材表面处理设备及其表面处理方法
CN115946007B (zh) * 2023-03-13 2023-06-02 南通亿卡迪工业科技有限公司 一种空气压缩机配件生产用抛光设备
CN117697556B (zh) * 2024-02-05 2024-04-19 江苏海龙电器有限公司 一种阀门断面打磨装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2336004A (en) 1940-07-29 1943-12-07 Bert F Fowler Method of and apparatus for collecting dust
JPH01188268A (ja) * 1986-02-28 1989-07-27 Takegawa Tekko Kk 乾式ベルトサンダー機におけるベルト清浄装置
DE3807780A1 (de) * 1988-03-09 1989-09-21 Zeidler Kg Maschf Heinrich Anlage zum saeubern des fusses bzw. der unterseite keramischer produkte
EP0640450A1 (de) 1993-08-23 1995-03-01 Inax Corporation Verfahren zum Entformen und zum Endbearbeiten eines Grünkörpers
DE29716543U1 (de) * 1997-02-13 1997-10-30 Paul Ernst Maschinenfabrik GmbH, 74927 Eschelbronn Breitbandschleifmaschine
EP1088636A2 (de) * 1999-09-28 2001-04-04 Vasco Benassati Vorrichtung zum Entgraten von keramischen Gegenständen , insbesondere von Glasierten Fliesen
DE202007002996U1 (de) * 2007-03-01 2007-05-24 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Vorrichtung zum Beseitigen des Grates von einem druckgegossenen Keramikgegenstand

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872627A (en) * 1974-02-07 1975-03-25 Timesavers Inc Wide belt sanding machine with improved dust collector
US4525955A (en) * 1981-10-20 1985-07-02 Timesavers, Inc. Abrasive belt cleaning system
SU1435445A1 (ru) * 1987-04-01 1988-11-07 Винницкий политехнический институт Устройство дл зачистки керамических изделий
SU1636221A1 (ru) * 1988-05-17 1991-03-23 Винницкий политехнический институт Устройство дл зачистки керамических изделий
SU1756159A1 (ru) * 1990-05-21 1992-08-23 Ташкентское Научно-Производственное Объединение "Легпром" Устройство дл обработки керамических изделий после формовки
DK164275C (da) * 1990-05-22 1992-10-26 Hh Patent As Bearbejdningsmaskine, saasom en gennemloebstraeslibemaskine
US5231801A (en) * 1991-08-09 1993-08-03 Skil Corporation Belt/disc sander with dust pickup means
US6244944B1 (en) * 1999-08-31 2001-06-12 Micron Technology, Inc. Method and apparatus for supporting and cleaning a polishing pad for chemical-mechanical planarization of microelectronic substrates
US6626743B1 (en) * 2000-03-31 2003-09-30 Lam Research Corporation Method and apparatus for conditioning a polishing pad
US7044840B2 (en) * 2002-08-07 2006-05-16 Toyoda Koki Kabushiki Kaisha Grinding method and grinding machine
CN100443277C (zh) * 2005-06-13 2008-12-17 广东东鹏陶瓷股份有限公司 一种哑光瓷质砖的生产工艺及其磨抛和研磨设备

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2336004A (en) 1940-07-29 1943-12-07 Bert F Fowler Method of and apparatus for collecting dust
JPH01188268A (ja) * 1986-02-28 1989-07-27 Takegawa Tekko Kk 乾式ベルトサンダー機におけるベルト清浄装置
DE3807780A1 (de) * 1988-03-09 1989-09-21 Zeidler Kg Maschf Heinrich Anlage zum saeubern des fusses bzw. der unterseite keramischer produkte
EP0640450A1 (de) 1993-08-23 1995-03-01 Inax Corporation Verfahren zum Entformen und zum Endbearbeiten eines Grünkörpers
DE29716543U1 (de) * 1997-02-13 1997-10-30 Paul Ernst Maschinenfabrik GmbH, 74927 Eschelbronn Breitbandschleifmaschine
EP1088636A2 (de) * 1999-09-28 2001-04-04 Vasco Benassati Vorrichtung zum Entgraten von keramischen Gegenständen , insbesondere von Glasierten Fliesen
DE202007002996U1 (de) * 2007-03-01 2007-05-24 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Vorrichtung zum Beseitigen des Grates von einem druckgegossenen Keramikgegenstand

Also Published As

Publication number Publication date
BRPI0801682A2 (pt) 2009-01-27
ES2391423T3 (es) 2012-11-26
ITBO20070411A1 (it) 2008-12-13
US20080311824A1 (en) 2008-12-18
RU2008123216A (ru) 2009-12-20
EP2002929B1 (de) 2012-07-11
CN101323134B (zh) 2012-07-04
CN101323134A (zh) 2008-12-17
RU2458789C2 (ru) 2012-08-20
MX2008007636A (es) 2009-03-04
PL2002929T3 (pl) 2012-11-30

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