EP4003644B1 - Vorrichtung zum bearbeiten von rändern von flächigen werkstücken - Google Patents

Vorrichtung zum bearbeiten von rändern von flächigen werkstücken Download PDF

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Publication number
EP4003644B1
EP4003644B1 EP20746131.0A EP20746131A EP4003644B1 EP 4003644 B1 EP4003644 B1 EP 4003644B1 EP 20746131 A EP20746131 A EP 20746131A EP 4003644 B1 EP4003644 B1 EP 4003644B1
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EP
European Patent Office
Prior art keywords
grinding ring
carrier
grinding
slip ring
ring parts
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.)
Active
Application number
EP20746131.0A
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German (de)
English (en)
French (fr)
Other versions
EP4003644A1 (de
Inventor
Johannes ZEHETHOFER
Christoph LUEGER
Franz Haselmayr
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.)
Lisec Austria GmbH
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Lisec Austria GmbH
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Filing date
Publication date
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Publication of EP4003644A1 publication Critical patent/EP4003644A1/de
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Publication of EP4003644B1 publication Critical patent/EP4003644B1/de
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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
    • 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
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • 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
    • 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

Definitions

  • the invention relates to a device for machining edges on edges of plate-shaped workpieces, such as glass panes, with the features of the introductory part of claim 1.
  • the device according to the invention comprises grinding surfaces for the removal of edges on the edges of plate-shaped workpieces, such as glass panes, which engage the edges of the plate-shaped workpiece in a removal manner.
  • the device according to the invention can also be designed and set up for polishing edges of workpieces.
  • Devices for the removal of edges of plate-shaped workpieces, in particular glass panes, are known in various embodiments. There are devices with grinding wheels that are grooved, in which connection WO 2015/055671 A1 , EP 1 607 177 B1 and EP 1 488 886 B1 can be referred to.
  • Belt grinders are also known for the removal of material from plate-shaped workpieces, especially glass panes, in order to trim their edges, as is the case, for example, with EP 1 344 604 B1 or DE 44 19 963 C1 is known.
  • cup-shaped grinding wheels on the edges of glass panes, with one grinding wheel on one edge and the other grinding wheel on the other edge. This is for example US9,555,516 B2 known.
  • Edging devices with sanding belts have the advantage that the sanding belts flexibly to the glass edges, so that the precision of the delivery of the glass pane to the tool is not crucial.
  • Deviations of the plate-shaped workpiece, such as the glass pane, from the specified shape and size can be compensated for by the flexibility of the grinding belts.
  • Edgers that use grinding wheels whereby the grinding wheels usually have a V-profile and can be used for different glass thicknesses, are usually rigid, so that inaccuracies in the format and size of the plate-shaped workpiece (glass pane) to be processed as well as deformations of the workpiece (the workpiece is then warped, i.e. no longer flat) must be compensated by the machine. It is therefore necessary to take measures to track the edges that are to be processed, as is the case, for example, with EP 2 512 732 B1
  • the well-known edging wheels grinding wheels with V-profile
  • US 2,733,553 A shows and describes a tool for grinding knives or the like and forms the basis for the two-part form of claim 1.
  • the tool has two grinding wheels which are fixed to two sleeves by means of nuts.
  • the sleeves are arranged on a shaft which is rotated by a motor and are held by springs in a central position in which they rest against each other.
  • the grinding wheels can be moved against the force of the springs so that the edges on both sides of a knife or the like can be machined (column 1, Lines 18 to 25 and column 2, lines 50 to 59).
  • US6,699,103 B1 discloses a device for grinding the blades of a lawn mower.
  • the device has a grinding wheel with a cylindrical grinding surface.
  • the grinding wheel is mounted on a carriage that can be moved on rails. When the grinding wheel is moved along the shaft, the grinding wheel moves along the blades to be ground. Rollers are provided on the carriage that roll on a sleeve that carries the grinding wheel and thus stabilize the shaft.
  • the grinding wheel is coupled to the shaft for rotation.
  • the grinding wheel is arranged on the sleeve so that it cannot move in the direction of the axis.
  • the invention is based on the object of providing a device with which plate-shaped workpieces, such as glass panes, can be processed (trimmed/polished) successfully and to the desired extent even if the shape of the edges and the position of the edges deviate from the desired shape or the desired position, whereby an advantageous mounting of the grinding wheel on its carrier is provided.
  • the device according to the invention which is designed essentially similarly to a grinding wheel, has a slip ring with a groove with grinding surfaces that is open to the outside.
  • the slip ring with the grinding surfaces is adjustable in the direction of the axis around which the device is set in rotation by its drive.
  • the grinding surfaces can thus follow the edges of the edges of the workpiece (glass pane) even if the edge deviates from the desired position in the direction of the axis. This can happen if the workpiece is rejected.
  • the slip ring with the grinding surfaces follows the edge of the workpiece automatically. Movements of the carrier (shaft) on which the slip ring sits, with which movements the device according to the invention follows the course and position of the edges of the workpiece, are no longer necessary. This is because, according to the invention, no rigid connection of the slip ring to the carrier of the device is provided in the direction of the (rotational) axis.
  • the slip ring is mounted floating on the carrier (the inner diameter of the slip ring is larger than the outer diameter of the carrier), so that the slip ring can move freely relative to its carrier in the direction of the (rotational) axis.
  • the floating bearing of the slip ring on the carrier is designed as a hydrostatic bearing or as a gas (air) bearing.
  • the inventive design of the device with a Hydrostatic bearings or gas bearings have the advantage that the coupling of the slip ring with its carrier, with which the torque is transmitted from the carrier to the slip ring, can be designed in such a way that it does not adversely affect the floating bearing of the slip ring.
  • the grinding surfaces are elastically spring-loaded so that when the device is used, they preferably rest against the edges of the workpiece with elastic pre-tension.
  • independent (spring-loaded) grinding surfaces make it possible to follow the edges of the workpiece even if the distance between the edge of the workpiece and the axis around which the device is rotated changes (becomes larger or smaller), i.e. does not remain in the desired position. This is possible, for example, if the slip ring is divided into two slip ring parts.
  • the device according to the invention combines the advantages of belt grinders with those of grinding wheels in the exemplary embodiment with resilient grinding surfaces, since the grinding surfaces in this embodiment are designed to be elastically flexible, i.e. they rest against the edges of the workpiece under elastic (resilient) pre-tension.
  • the adjustability of the grinding surfaces of the device according to the invention can be achieved in different ways within the scope of the invention.
  • the pin is received in the bore or recess with a sliding guide, wherein it is preferred that the grinding surfaces are elastically resilient in the direction of the axis.
  • the possible design of the coupling between the grinding wheel and its carrier in one embodiment of the invention in the form of at least one pin which is fastened to the carrier and engages in a bore or recess in the grinding wheel allows the floating bearing of the grinding wheel to be designed in the form of a hydrostatic bearing or a gas bearing without influence from the coupling between the grinding wheel and its carrier in such a way that good bearing of the grinding wheel is ensured.
  • the grinding surfaces are provided on a slip ring which is supported on the carrier, for example by springs.
  • the grinding surfaces are provided on two slip ring parts, which are arranged to be movable relative to each other and to the carrier in the direction of the (rotational) axis and are resiliently loaded towards each other.
  • the object underlying the invention can be achieved in that a grooved slip ring with its groove walls forming grinding surfaces is arranged so that it can be displaced in the direction of the (rotational) axis of the carrier against spring force.
  • a grooved slip ring with its groove walls forming grinding surfaces is arranged so that it can be displaced in the direction of the (rotational) axis of the carrier against spring force.
  • the slip ring is mounted on its carrier so that it can be displaced in the direction of the rotational axis of a carrier against the force of springs that act on both sides of the slip ring.
  • a slip ring which optionally comprises two slip ring parts.
  • the invention also envisages embodiments in which more than one slip ring and/or more than one pair of slip ring parts are provided on a carrier. Even if two or more than two slip rings and/or pairs of slip ring parts are provided on a carrier, one-piece slip rings and slip ring parts divided into slip ring parts can be combined.
  • the invention envisages arranging slip rings with different grooves (trapezoidal, V-shaped, etc.) and/or differently shaped grinding surfaces on a carrier.
  • the grinding rings provided within the scope of the invention can be designed for abrasive processing (e.g. trimming) and also for polishing the edges of workpieces.
  • spring as used herein includes any type of elastic means acting on a slip ring or slip ring parts. Examples are metallic springs (coil springs), gas springs (pneumatic springs) and fluid springs.
  • the embodiment of a device 1 shown which is designed in the manner of a grinding wheel, comprises a carrier 12 serving as a (drive) shaft and a slip ring 25 made up of two slip ring parts 6.
  • the slip ring parts 6 are arranged on the carrier 12 designed as a shaft so as to be displaceable in the direction of the axis 2 of the carrier 12, as shown in Fig. 3 and 4 indicated by the arrows 13.
  • a line 14 for liquid supply (supply of water) is provided so that the slip ring parts 6 of the Slip ring 25 is mounted on the carrier 12 via hydrostatic bearings (floating).
  • hydrostatic bearings floating
  • gas (air) bearings can also be provided.
  • a gas eg air is supplied via the line 14.
  • the slip ring parts 6 have grinding surfaces 7 which are conically or concavely curved and which, when the device 1 is used to trim the edges 9 of an edge 10, engage the workpiece 8 (glass pane) to be machined in an abrasive manner.
  • the slip ring parts 6 of the Fig. 1 to 4 shown embodiment are loaded by springs 16, in the example helical springs, which are arranged between the slip ring parts 6 and shoulders 17 of the carrier 12, in the sense of a movement towards each other.
  • the slip ring parts 6 are supported on the carrier 12 by springs 16, the slip ring parts 6 can follow the course of the edge 10 of the workpiece 8 to be machined (glass pane) without special guidance measures being required.
  • the reason for this is that the grinding surfaces 7 of the slip ring parts 6 are elastically resilient and, under spring pre-tension, rest against the edges 9 of the workpiece 8 to be trimmed, such as a glass pane, even if the workpiece 8 deviates from the desired size, position and/or shape.
  • pins 18, which serve as drivers and/or guide pins, are provided for torque transmission, which are arranged on a flange 19 of the carrier 12 and engage with sliding guides through bores 20 in the slip ring parts 6.
  • Fig.1 the ideal case is shown in which the workpiece 8 to be machined (the glass pane to be machined) is precisely (symmetrically) aligned with the plane of symmetry (plane perpendicular to the axis 2, which lies centrally between the slip ring parts 6) of the device 1.
  • Fig. 2 shows an offset of a workpiece 8, as often occurs in practice, whereby the grinding surfaces 7 of the grinding ring parts 6 engage evenly (centrally) on edges 9 of the edge 10 of the workpiece 8 and thereby Fig.1 are offset from the position shown.
  • Fig.3 shows the case in which the workpiece 8 is laterally offset from the nominal position and is also larger than the nominal size (cut with oversize).
  • the grinding surfaces 7 of the device 1 follow the edges 9 of the edge 10 of the workpiece 8, whereby the grinding ring parts 6 move in the direction of the axis 2 from their basic position ( Fig.1 ). Since the workpiece 8 to be machined is oversized, i.e. larger than the nominal size, the slip ring parts 6 are moved apart against the force of the springs 16 and the grinding surfaces 7 automatically align themselves into the correct position.
  • Fig.4 the case is shown in which the workpiece 8 (the glass pane) is correctly aligned, i.e. is not laterally offset, but has an excess, i.e. is larger than the nominal dimension, whereby in this case too the grinding surfaces 7 of the slip ring parts 6 are correctly aligned at the edges 9 and engage the edges 9 in a resilient manner.
  • the grinding surfaces 7 of the slip ring parts 6 of the slip ring 25 are designed to be elastically flexible.
  • the grinding surfaces 7 align themselves automatically with respect to the edges 9 of the plate-shaped workpiece 8 (glass pane) to be machined, since they rest against the workpiece 8 (glass pane) under elastic prestress.
  • Fig. 5 to 9 is a difference from the embodiment of Fig. 1 to 4 modified embodiment of the device 1 according to the invention, which is essentially designed as a grinding disk, is shown.
  • the slip ring 25 comprises two slip ring parts 6 with conical grinding surfaces 7, which are arranged on a carrier 12 serving as a base body so as to be displaceable in the direction of the axis 2 of the device 1.
  • the spring forces which move the slip ring parts 6 into their operative position and additionally press them elastically against the edges 9 of the edge 10 of the plate-shaped workpiece 8 (glass pane) to be trimmed are Fig. 5 to 9 shown embodiment by the pressure with which liquid or gas is supplied to the bearing.
  • an annular space 21 is provided for each slip ring part 6, into which liquid or gas is introduced.
  • the annular space 21 is formed by the carrier 12, the slip ring parts 6 and a provided sleeve-shaped element 22 (tubular part).
  • hydraulic springs or gas springs acting in the axial direction are formed by pressure, which elastically load the slip ring parts 6, and thus their grinding surfaces 7, in the sense of a movement towards each other.
  • the Fig. 5 to 9 The embodiment shown has the advantage, due to the liquid springs or gas springs (the spaces 21 charged with liquid or gas (air)), that the slip ring parts 6 of the slip ring 25 and thus their grinding surfaces 7 can be displaced in the axial direction by the workpiece 8 (the glass pane) without the contact pressure changing (if the pressure of the medium or gas does not change).
  • This allows the slip ring parts 6 with the grinding surfaces 7 to adapt to different geometries of the workpiece 8 to be machined, in particular the glass pane (oblique break, cutting tolerances, glass warping).
  • the sleeve-shaped elements 22 tubular parts
  • the slip ring parts 6 have openings 23 (holes).
  • the openings 23 are arranged outside the annular spaces 21, to which liquid or gas is supplied for the liquid springs or the gas springs. Only when the position according to the Fig.
  • the openings 23 in the sleeve-shaped (annular) elements 22 are arranged so that liquid or gas can flow through the openings 23, which serve as Leakage holes can leak out and the pressure drops, whereupon the slip ring parts 6 return to their original position (position according to Fig. 5 and 6 ).
  • the slip ring parts 6 of the Fig. 5 to 9 The embodiment shown is coupled to the carrier 12 for rotation.
  • the device 1 has an undivided slip ring 25 with a trapezoidal groove 5, wherein the lateral (conical) groove surfaces are designed as grinding surfaces 7.
  • the slip ring 25 is coupled to the carrier 12 for rotation by the pins 18, which are fastened to the flange 19 of the carrier 12 and slide into recesses, eg bores 20, of the slip ring 25, so that a torque transmission is provided.
  • springs 16 e.g. coil springs
  • springs 16 are provided as elastically resilient return elements, which align the slip ring 25 in its initial position (ready position), which in Fig.10 is shown.
  • a line 14 is provided for the supply of a liquid or gaseous medium for a hydrostatic bearing or a gas bearing of the slip ring 25 (floating bearing), which allows its displacement relative to the carrier 12 in the axial direction.
  • the slip ring 25 of the Fig. 10 and 11 is coupled for rotation to the carrier 12 by pins 18.
  • Fig. 11 shows the case in which the workpiece 8 (the glass pane to be machined) is moved from the target position (in Fig.10 indicated above), e.g. due to a rejected workpiece.
  • the slip ring 25, which can be moved on the carrier 12 against the spring force, and thus its grinding surfaces 7, automatically align themselves to the edges 9 by the slip ring 25 moving on the carrier 12 in the direction of the axis 2.
  • the grinding surfaces 7 are elastically resilient, follow the edges 9 and lie evenly under elastic prestress on the edges 9 of the workpiece 8 to be trimmed.
  • the groove 5 of the slip ring 25 can also be V-shaped instead of trapezoidal as shown.
  • Grinding rings 25 with a trapezoidal groove 5 can be used for trimming the edges 9 and for machining (grinding and/or polishing) the edge surfaces of the workpiece 8 that are aligned transversely to the plane of the workpiece 8.
  • the bottom of the groove 5 has a machining effect on the edge surface of the workpiece 8, for example by polishing it.
  • Grinding rings 25 with a V-shaped groove 5 are used, for example, when only the edges 9 on the edges 10 of workpieces 8 are to be machined (trimmed).
  • an embodiment of the invention can be described as follows:
  • a grinding ring 25 is used which is set in rotation about an axis 2 by a drive.
  • the grinding surfaces 7 which act on the edges 9 of the edge 10 of the workpiece 8 in a removing manner are designed to be movable in the axial direction, so that during trimming they follow the edges 9 of the workpiece 8.
  • the grinding surfaces 7 automatically apply themselves to the edges 9 of the workpiece 8 to be trimmed, even if the edges 9 are not in the specified target position.

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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)
EP20746131.0A 2019-07-22 2020-07-20 Vorrichtung zum bearbeiten von rändern von flächigen werkstücken Active EP4003644B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2612019 2019-07-22
PCT/EP2020/070409 WO2021013779A1 (de) 2019-07-22 2020-07-20 Vorrichtung zum bearbeiten von rändern von flächigen werkstücken

Publications (2)

Publication Number Publication Date
EP4003644A1 EP4003644A1 (de) 2022-06-01
EP4003644B1 true EP4003644B1 (de) 2024-09-04

Family

ID=71786911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20746131.0A Active EP4003644B1 (de) 2019-07-22 2020-07-20 Vorrichtung zum bearbeiten von rändern von flächigen werkstücken

Country Status (5)

Country Link
US (1) US20220266407A1 (enExample)
EP (1) EP4003644B1 (enExample)
CN (1) CN114080298B (enExample)
AT (1) AT17015U1 (enExample)
WO (1) WO2021013779A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT526662B1 (de) * 2023-09-12 2024-06-15 Lisec Austria Gmbh Vorrichtung zum Bearbeiten von Rändern von flächigen Werkstücken

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733553A (en) * 1952-09-18 1956-02-07 Paul M Newsom Cutting tool grinder
GB811000A (en) * 1957-11-07 1959-03-25 J And H Taylor Holdings Ltd Improvements in and relating to grinding machines
US3030744A (en) * 1960-03-08 1962-04-24 Harig Mfg Corp Air film bearing for machine tools
DE1174202B (de) * 1960-07-30 1964-07-16 Applic Tech D Affutage Moderne Schleifeinrichtung fuer Messer, Scheren od. dgl.
DE4419963C1 (de) 1994-06-08 1995-09-14 Robert Dipl Ing Deichsel Kreuzbandschleifmaschine zum beiderseitigen Anfasen des Randes von Glasplatten
GB9512262D0 (en) * 1995-06-16 1995-08-16 Bingham Richard G Tool for computer-controlled machine for optical polishing and figuring
AT408856B (de) 1997-12-02 2002-03-25 Lisec Peter Vorrichtung zum automatischen säumen von plattenförmigen gegenständen
WO1999039873A1 (de) * 1998-02-04 1999-08-12 Koennemann Ronny Schleifspindel
US6699103B1 (en) * 2003-02-12 2004-03-02 Foley-Belsaw Company Mower reel blade grinding device
ITTV20030091A1 (it) 2003-06-20 2004-12-21 For El Base Di Davanzo Nadia & C S Nc Macchina automatica per la smerigliatura dei bordi delle lastre di vetro e procedimento automatico per la smerigliatura dei bordi delle lastre di vetro.
JP2005349546A (ja) 2004-06-14 2005-12-22 Sankyo Diamond Industrial Co Ltd 側面円形加工用研削工具
US7854650B2 (en) * 2007-01-24 2010-12-21 Kun-Lin Chuang Knife sharpener
JP5045410B2 (ja) * 2007-12-10 2012-10-10 株式会社ジェイテクト 砥石軸装置
US9555516B2 (en) 2009-07-24 2017-01-31 Corning Incorporated Method for processing an edge of a glass plate
SE535305C2 (sv) 2009-12-22 2012-06-26 Electrolux Ab Dammsugare med indragbar hjälpsugslang
ITPD20130286A1 (it) * 2013-10-17 2015-04-18 Adi S P A Mola, particolarmente per lavorazioni di molatura di lastre in vetro, ceramica o simili materiali
AT515011B1 (de) * 2013-11-14 2015-08-15 Lisec Austria Gmbh Verfahren und Vorrichtung zum Bearbeiten der Ränder flächiger Werkstücke

Also Published As

Publication number Publication date
EP4003644A1 (de) 2022-06-01
CN114080298A (zh) 2022-02-22
WO2021013779A1 (de) 2021-01-28
US20220266407A1 (en) 2022-08-25
AT17015U1 (enExample) 2021-02-15
CN114080298B (zh) 2024-10-01

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