EP2433747A1 - Procédé et dispositif de ponçage des arêtes de plaques en verre s'étendant parallèlement les unes par rapport aux autres - Google Patents

Procédé et dispositif de ponçage des arêtes de plaques en verre s'étendant parallèlement les unes par rapport aux autres Download PDF

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Publication number
EP2433747A1
EP2433747A1 EP10179267A EP10179267A EP2433747A1 EP 2433747 A1 EP2433747 A1 EP 2433747A1 EP 10179267 A EP10179267 A EP 10179267A EP 10179267 A EP10179267 A EP 10179267A EP 2433747 A1 EP2433747 A1 EP 2433747A1
Authority
EP
European Patent Office
Prior art keywords
grinding
grinding tool
coolant
tool
glass plate
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
EP10179267A
Other languages
German (de)
English (en)
Other versions
EP2433747B1 (fr
Inventor
Christoph Linnenbrügger
Joachim Korswird
Martin Schnitker
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.)
Benteler Maschinenbau GmbH
Original Assignee
Benteler Maschinenbau 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 Benteler Maschinenbau GmbH filed Critical Benteler Maschinenbau GmbH
Priority to EP10179267.9A priority Critical patent/EP2433747B1/fr
Priority to US13/236,876 priority patent/US8753173B2/en
Publication of EP2433747A1 publication Critical patent/EP2433747A1/fr
Application granted granted Critical
Publication of EP2433747B1 publication Critical patent/EP2433747B1/fr
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
    • 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
    • B24B9/08—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 of glass
    • B24B9/10—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 of glass of plate glass
    • B24B9/102—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 of glass of plate glass for travelling sheets
    • 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
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant

Definitions

  • the invention relates to a method for grinding the mutually parallel edges of glass plates, which are continuously transported past by means of a horizontal conveyor to the rotating drivable grinding tools, and that each grinding tool can be acted upon by a flow of coolant.
  • the invention also relates to a device for carrying out the method according to the invention.
  • each edge of the glass plate is processed by at least three successively arranged grinding tools.
  • the feed rate of the glass plate to be processed is relatively low due to the material, while the peripheral speeds of the grinding tools are relatively high. Due to the material, it is essential that the grinding tools are cooled by a coolant during the grinding process. This cooling liquid is supplied via a supply line and the cooling liquid is collected and recycled for further use.
  • the flat, the thickness of the glass plate determining surfaces are particularly high quality and depending on the intended use with a coating of a high quality material provided. Due to the previous coolant supply, it is unavoidable that coolant is sprayed onto these flat surfaces. This leads to an impairment of the surface or the coating, so that a rework is required.
  • the invention has for its object to provide a method of the type described in more detail, in the implementation of the design complexity of a system is minimized and the processed glass plates have a surface finish that meets the requirements without rework.
  • the invention is further based on the object to show a working device according to the invention, in which at least the design effort for the arrangement of the grinding tools is reduced, and which is also designed so that the flat surfaces and the coatings during the grinding process remain free of the coolant.
  • the object directed to the method is achieved by grinding each edge of the glass plate by means of a grinding aggregate or by means of two grinding units arranged one behind the other in the direction of passage of the glass plates, the coolant flow being directed from the side of the glass plate onto the grinding tool such that the coolant flow is in a plurality of coolant fine streams is divided, and that the coolant is sucked by means connected to a vacuum sourcerisonffenabsaug effeten, thedeffenfeinströme are directed towards thedestoffabsaug admir, by means of astilmieferinides the position of each grinding tool determined in height and the diameter of the skewed tool is detected and that at least the position of each grinding tool relative to the edge of the glass plate to be processed is controllable such that at least the position of each grinding tool to the associated edge de Calibrated r passing glass plate and the corners of the glass plate to the chamfer be sanded.
  • the design effort for a device operating according to the inventive device is already reduced by the fact that the number of grinding units is reduced to two pieces, preferably favored is that each edge is processed by means of a single Schleifaggragates.
  • the Luftabsaugströmung is so intense that the centrifugal force of the grinding tool is overcome during the grinding process, so that a clearance for the air is formed.
  • the grinding tool is transferred to the desired state, i. the grinding tool, usually a grinding wheel, is machined on the peripheral surface so that the changes in the peripheral surface resulting from the wear are eliminated, i. the surface quality of the peripheral surface of the grinding wheel is always optimized.
  • the object directed to the apparatus for grinding the mutually parallel edges of glass plates, in particular for carrying out the method, wherein the device is equipped with a horizontal conveyor transporting the glass plates with opposing, each driven by a drive drivable grinding tools, and for cooling each Abrasive tool is equipped with adeffenzuWORK threaten is achieved in that the device is equipped on each side of the edges to be ground of the continuous glass plate with one or two in the direction of passage of the glass plates successively arranged grinding unit or grinding units, which are equipped with a rotating drivable grinding tool in that each grinding tool is assigned a lateral coolant supply line and a coolant suction line arranged at a distance thereto, and in that the supplied coolant flow is passed through a coolant supply line Deflection and current distribution segment in the direction of the grinding tool umleitund is divisible.
  • each edge of the glass sheet is processed with a maximum of two grinding tools, but preferably with a grinding tool.
  • This is made possible by the units explained below.
  • the device that thedeffenzu111 threaten is guided laterally past the grinding wheel or the grinding tool, and that the coolant flow is diverted and divided by the deflection and Stromaufteilsegment towards the grinding tool, in the form that the grinding wheel or the Grinding tool is looped semicircular, so that the coolant supply takes place over an angle which may be in the range of 180 °.
  • each grinding tool is fixed by means of a clamping device on the rotatably driven grinding spindle, and that each grinding tool is arranged in a multi-part housing, wherein the individual housing parts are arranged one above the other, preferably three housing parts are provided, and that the middle housing part, the grinding tool is assigned, that the upper housing part is stationary, and the lower housing part about a vertical Axis for removing the released from the grinding spindle grinding tool is pivotable, and that the deflection and Stromaufteilsegment arranged in the central housing part or that the deflection and Stromaufteilsegment forms the central housing part.
  • the clamping device is designed so that a release or unlocking of the grinding tool from the outside is possible.
  • the housing part assigned to the grinding tool increases this cross-sectional direction at the housing part assigned to the vacuum source on the side assigned to the vacuum generator. As a result, the centrifugal force of the grinding tool can be overcome by the vacuum.
  • the vacuum source associated end of this housing part is designed as a flange for connection to the coolant suction.
  • the device has a fixed portal as a support frame for at least the horizontal conveyor, a center and below the plane of passage of the glass plates lying support bar, the two grinding tools having abrasive aggregates and an actuator for the support strip.
  • the horizontal conveyor consists of two spaced associated with the edge of the glass plate, connected to at least one vacuum source Saugbandageern, and that by means of an actuator at least one Saugbandageer and at least one grinding unit is adjustable.
  • a constructive simple solution for an actuator of the support rail is given if it is effective transversely to the transport direction of the suction belt conveyor, and that the actuator contains two spaced adjustment belt.
  • each adjustment belt consists of two spaced individual belts that the pulleys each Verstellriemens have such different diameters that the rotational speed of a single belt is twice as large as that of the other single belt.
  • the conveyor belt with the higher speed could be seen as a drive belt and the conveyor belt with the lower circulation speed as an adjustment belt for the Saugbandanier and possibly also for the grinding unit.
  • each sharpening tool is assigned a sharpening device such that the peripheral surface of the grinding wheel or grinding tool can be considered as smooth surface.
  • the advantage is that no disassembly is necessary for sharpening the grinding tool. Sharpening the abrasive tool is also referred to as peeling.
  • FIG. 1 shows in a perspective and simplified representation of the grinding station 10.
  • This grinding station 10 includes a in the FIG. 2
  • This portal frame 11 consists essentially of two lateral and vertical columns 12, 13, an upper slide guide 14 and a transversely to the columns 12, 13 stationary cross-beam 15.
  • This cross-beam 15 are paired pulleys 16, 17 associated, are guided over the conveyor belt, not shown.
  • These guide rollers 16, 17 are part of an actuator, not shown, for the glass plates fixing suction belt conveyor 18, 19.
  • the Saugband makeuper 18, 19 are known per se and have a suction box, which is connected to a vacuum source 20. For transporting the glass plates, not shown Each Saugband redesigner 18, 19 equipped with a hinted, perforated conveyor belt.
  • the grinding station 10 includes two on hand FIG. 3 grinding units 21, 22, which are explained in greater detail, stand at a distance from the suction belt conveyors 18, 19 and are adjustably arranged on the sides of the suction belt conveyors 18, 19 remote from one another.
  • Each sanding unit 21, 22 is equipped with a sharpening device 23, 24 in order to process the grinding tool of the sanding unit 21, 22 after a certain wear.
  • each grinding unit 21, 22 is adeffenabsaugtechnisch 25, 26 connected, which are formed as a cooling housing, and open in a not further explained separator 27, 28.
  • separators 27, 28 By means of these separators 27, 28, the solid particles are removed from the cooling water.
  • Each separator 27, 28 is conductively connected to a vacuum generator 29, 30. The cooling water is passed from there into a cooling water tank, not shown, and used for further cooling of the grinding tools.
  • the Figures 3 and 4 show that in the illustration according to the FIG. 1 left sanding unit 21 each in perspective views.
  • the grinding unit 22 of the opposite right side is constructed in mirror image.
  • the grinding unit 21 includes a grinding tool 31 in the form of a grinding wheel, which is placed on the grinding spindle 33 by means of a clamping device 32, which is not explained in greater detail.
  • a pulley 34 is placed, so that the grinding spindle 33 is driven by a belt, not shown, and with a motor.
  • the grinding tool 31 is located within a housing 35, which consists in the illustrated embodiment of an upper, the grinding spindle 33 facing housing part 36, a middle housing part 37 and a lower, the grinding spindle 33 facing away from the housing part 38.
  • the housing parts 36 and 38 are opened in the direction of the coolant suction line 25. How the particular FIG. 4 shows, the grinding unit 21 is designed so that the grinding tool 31 rotates in the transition region between the central housing part 37 and the lower housing 38.
  • the segment facing away from the coolant suction line 25 or arcuate end region of the middle housing part 37 is designed as a deflection and current distribution segment, and is closed towards the outside.
  • This Housing part 37 is equipped with a connection 39 for the coolant supply line, not shown.
  • the inflowing coolant flow impinges on the side facing away from the coolant suction line 25 and is diverted and split.
  • This end portion of the housing part 37 is provided with an inner ring having a plurality of holes with a relatively small diameter. Through these holes many individual streams are passed to the grinding tool 31.
  • the middle housing part 37 is connected via a flange 14 with the coolant suction line 25.
  • the region between the grinding tool 31 and the flange 40 is formed as a cooling housing and widens in cross-section toward the flange 40th
  • the lower housing part 38 is pivotable about a vertical axis. If the grinding tool 31 is released by the grinding spindle 33 after the clamping device 32 has been actuated, the lower housing part 38 can be pivoted and the grinding tool can be removed. For changing the grinding tool 31 no assembly work is therefore necessary.
  • FIG. 4 shows the grinding unit 21 in the assembled state. Clearly, the position of the grinding tool 31 can be seen. The figure also shows that the grinding unit 21 is extremely compact. The figure also shows that the upper housing part 36 is located within the middle housing part 37.
  • FIG. 5 shows in conjunction with the FIG. 1 in that a support rail 41 is always provided centrally between the movable suction belt conveyors 18, 19, said support rail being below the passage plane of the glass plates to be processed.
  • two adjustment 42, 43 are provided which work transversely to the support rail 41 and to the suction belt conveyors 18, 19. These adjustment belts 42, 43 form an actuator for the support rail 41.
  • the adjustment belts 42, 43 are driven by the suction belt conveyor 18, 19, so that the support rail 41 is moved.
  • Each adjustment belt 42, 43 consists of two individual belt drives 44, 45 wherein the deflection rollers are matched in diameter from each other so that the rotational speed of the individual belt 45 is 50% of the rotational speed of the individual belt 44.
  • the support rail 41 is moved at half the drive speed. Since the individual belts 44, 45, due to the smaller diameter of the pulleys, rotate at half the speed, as the Verstellriemen 42, 43, and the support bar 41 is moved at half the speed as the suction belt conveyor 18 or 19, so that the support bar 41 is always in the middle between the Saugbandsleyern 18, 19.
  • the invention is not limited to the illustrated embodiment. It is essential that, procedurally, the coolant flow is deflected by a deflecting and flow dividing element so that it impinges on the grinding tool 31 from the side of the glass plate, advantageously dividing this coolant flow into a multiplicity of individual flows. Furthermore, it is important that each glass edge is processed by a maximum of two grinding units 21, 22 but always only by a grinding unit, and that the feed rate of the glass plate and the feed movement of each grinding unit 21, 22 are coordinated so that in the corner regions of the glass plate a smooth-surfaced bevel can be sanded.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
EP10179267.9A 2010-09-24 2010-09-24 Procédé et dispositif de ponçage des arêtes de plaques en verre s'étendant parallèlement les unes par rapport aux autres Active EP2433747B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10179267.9A EP2433747B1 (fr) 2010-09-24 2010-09-24 Procédé et dispositif de ponçage des arêtes de plaques en verre s'étendant parallèlement les unes par rapport aux autres
US13/236,876 US8753173B2 (en) 2010-09-24 2011-09-20 Method and device for grinding the mutually parallel edges of glass plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10179267.9A EP2433747B1 (fr) 2010-09-24 2010-09-24 Procédé et dispositif de ponçage des arêtes de plaques en verre s'étendant parallèlement les unes par rapport aux autres

Publications (2)

Publication Number Publication Date
EP2433747A1 true EP2433747A1 (fr) 2012-03-28
EP2433747B1 EP2433747B1 (fr) 2013-04-17

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EP10179267.9A Active EP2433747B1 (fr) 2010-09-24 2010-09-24 Procédé et dispositif de ponçage des arêtes de plaques en verre s'étendant parallèlement les unes par rapport aux autres

Country Status (2)

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US (1) US8753173B2 (fr)
EP (1) EP2433747B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10717168B2 (en) * 2014-02-28 2020-07-21 Corning Incorporated Glass treatment apparatus and methods of treating glass
CN108044512A (zh) * 2017-12-26 2018-05-18 佛山市博裕城玻璃机械有限公司 一种磨边机的冷却机构及一种磨边机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10020800A1 (de) * 1999-04-29 2001-01-25 Vidrio Plano De Mexico S A De Vorrichtung zum Finishen der Kante einer Glasplatte
US20030236060A1 (en) * 2002-06-19 2003-12-25 Mark Opfer Single-sided finishing apparatus
US20070141961A1 (en) * 2005-12-21 2007-06-21 James William Brown Apparatus and method for edge processing of a glass sheet
DE102008027050A1 (de) * 2008-06-06 2009-12-10 Grenzebach Maschinenbau Gmbh Verfahren und Vorrichtung zum automatischen Kanten - Schleifen von Glasplatten unter Reinraumbedingungen

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ATE214321T1 (de) * 1996-06-15 2002-03-15 Unova Uk Ltd Verfahren zum schleifen von kanten
US5664990A (en) * 1996-07-29 1997-09-09 Integrated Process Equipment Corp. Slurry recycling in CMP apparatus
JP3149079B2 (ja) * 1997-04-25 2001-03-26 ヤマハ発動機株式会社 加工液の浄化装置
JP4240566B2 (ja) * 1998-04-01 2009-03-18 ヤマハ発動機株式会社 クーラント浄化システム
US6152809A (en) * 1998-09-03 2000-11-28 Yenawine; Peter W. Method and apparatus for cold-end processing full-lead crystal
US6260232B1 (en) * 1998-09-22 2001-07-17 Marc O. Nelson Surface cleaning apparatus
US6325704B1 (en) * 1999-06-14 2001-12-04 Corning Incorporated Method for finishing edges of glass sheets
US6428390B1 (en) * 1999-06-29 2002-08-06 Corning Incorporated Method and apparatus for edge finishing glass sheets
US6306015B1 (en) * 2000-01-03 2001-10-23 Machine And Wheels, Inc. Method for grinding rigid materials
JP4433555B2 (ja) * 2000-03-23 2010-03-17 坂東機工株式会社 ガラス板の加工方法及びその装置
IT1320224B1 (it) * 2000-06-30 2003-11-26 Forvet S R L Metodo e macchina di molatura per la lavorazione di lastre di vetro.
IT1320847B1 (it) * 2000-11-28 2003-12-10 Bottero Spa Metodo e macchina per la molatura di lastre di vetro rivestite.
US7001249B1 (en) * 2005-01-11 2006-02-21 Guardian Industries, Inc. Methods and systems for finishing edges of glass sheets
CA2690224C (fr) * 2009-01-15 2012-08-14 Permasteelisa North America Corporation Installation de meulage et de polissage de mur de pierres

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10020800A1 (de) * 1999-04-29 2001-01-25 Vidrio Plano De Mexico S A De Vorrichtung zum Finishen der Kante einer Glasplatte
US20030236060A1 (en) * 2002-06-19 2003-12-25 Mark Opfer Single-sided finishing apparatus
US20070141961A1 (en) * 2005-12-21 2007-06-21 James William Brown Apparatus and method for edge processing of a glass sheet
DE102008027050A1 (de) * 2008-06-06 2009-12-10 Grenzebach Maschinenbau Gmbh Verfahren und Vorrichtung zum automatischen Kanten - Schleifen von Glasplatten unter Reinraumbedingungen

Also Published As

Publication number Publication date
US8753173B2 (en) 2014-06-17
EP2433747B1 (fr) 2013-04-17
US20120077421A1 (en) 2012-03-29

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