US20220266407A1 - Device for processing the borders of flat workpieces - Google Patents

Device for processing the borders of flat workpieces Download PDF

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Publication number
US20220266407A1
US20220266407A1 US17/628,421 US202017628421A US2022266407A1 US 20220266407 A1 US20220266407 A1 US 20220266407A1 US 202017628421 A US202017628421 A US 202017628421A US 2022266407 A1 US2022266407 A1 US 2022266407A1
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United States
Prior art keywords
grinding ring
grinding
carrier
workpiece
edges
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Pending
Application number
US17/628,421
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English (en)
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
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
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Assigned to LISEC AUSTRIA GMBH reassignment LISEC AUSTRIA GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HASELMAYR, FRANZ, ZEHETHOFER, Johannes, LUEGER, Christoph
Publication of US20220266407A1 publication Critical patent/US20220266407A1/en
Pending legal-status Critical Current

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    • 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
    • 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
    • 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 the sides of flat workpieces, such as glass panels.
  • the device according to the invention comprises grinding surfaces that act on the edges of the sides of the flat workpiece by ablation.
  • the device according to the invention can also be configured and equipped for polishing the sides of workpieces.
  • belt grinders are also known, as is known from, for example, EP 1 344 604 B1 or DE 44 19 963 C1.
  • Trimming devices with grinding belts have the advantage that the grinding belts are positioned against the glass edges in a flexible manner, so that the precision with which the glass panel is fed to the tool is not crucial.
  • lateral faces that produce rough spots and are oriented not at a right angle to the plane of the glass panel but rather obliquely, or else shapes that deviate slightly from the shape can be produced by blank-cut tolerances, and discarded (rough) workpieces can be easily trimmed.
  • Deviations of the flat object, such as the glass panel, from the prescribed shape and size can be compensated for by the flexibility of the grinding belts.
  • Trimming devices that use grinding disks, wherein the grinding disks in general have a V-profile and can be used for various glass thicknesses, are in general rigid, so that inaccuracies of the format and the size of the flat workpiece (glass panel) that is to be machined as well as deformations of the workpiece (the workpiece is then discarded, i.e., is no longer flat) have to be compensated for by the machine. It is therefore necessary to take steps to track the edges that are to be machined, as is known from, for example, EP 2 512 732 B1.
  • the known trim panels (grinding disks with a V-profile) often cause the problem that rough spots cannot be machined uniformly as desired.
  • U.S. Pat. No. 2,733,553 A shows and describes a tool for grinding knives or the like.
  • the tool has two grinding disks, which are fixed on two sleeves using screw nuts.
  • the sleeves are arranged on a shaft that is rotated by a motor and are held by springs in a central position, in which they are adjacent.
  • the grinding disks 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).
  • the object of the invention is to make available a device with which flat workpieces, such as glass panels, can be machined (trimmed/polished) successfully and to the desired extent even if the shape of the edges and the position of the edges deviate from the target shape or the target position, wherein an advantageous mounting of the grinding disk on its carrier is provided.
  • the device according to the invention which is designed essentially similar to a grinding disk, has a grinding ring with an outward-facing groove with grinding surfaces.
  • the grinding ring with the grinding surfaces can be adjusted in the direction of the shaft around which the device is rotated by its drive.
  • the grinding surfaces can follow the edges of the sides of the workpiece (glass panel) even if the side deviates from the target position in the direction of the shaft. This can occur if the workpiece is discarded.
  • the grinding ring with the grinding surfaces automatically follows the side of the workpiece. Movements of the carrier (shaft), on which the grinding ring sits, with which movements the device according to the invention tracks the path and position of the sides of the workpiece, are no longer necessary. This is because according to the invention, the grinding ring is not rigidly connected to the carrier of the device in the direction of the axis (of rotation).
  • the grinding ring is mounted to float on the carrier (the inside diameter of the grinding ring is larger than the outside diameter of the carrier), so that relative to its carrier, the grinding ring can move freely in the direction of the axis (of rotation).
  • the floating mount of the grinding ring on the carrier is designed as a hydrostatic bearing or as a gas (air) bearing.
  • the design according to the invention of the device with a hydrostatic bearing or gas bearing has the advantage that the coupling of the grinding ring to its carrier, with which the torque is transferred from the carrier to the grinding ring, can be configured in such a way that it does not disadvantageously influence the floating mount of the grinding ring.
  • the grinding surfaces are loaded in an elastically springy manner, so that when the device is used, these surfaces preferably rest with elastic prestress on the edges of the sides of the workpiece.
  • the latter cause, in one possible embodiment of the invention, the grinding ring with its grinding surfaces to be moved back again into the starting position of the grinding surfaces after the device is used.
  • (elastic) grinding surfaces independently from one another, have the ability to follow the edges of the workpiece even if the distance between the side of the workpiece and the shaft around which the device is rotated varies (is larger or smaller), i.e., does not remain in the target position. This is possible, for example, if the grinding ring is divided into two grinding ring parts.
  • the device according to the invention combines the advantages of belt grinders with those of grinding disks, since the grinding surfaces in this embodiment are designed to be elastically flexible, i.e., rest on the edges of the sides of the workpiece under elastic (springy) prestress.
  • the adjustability of the grinding surfaces of the device according to the invention can be achieved in various ways.
  • the pin is accommodated in the hole or recess with a slide guide, wherein it is preferred that the grinding surfaces are elastically springy in the direction of the shaft.
  • the configuration, possible in one embodiment of the invention, of the coupling between the grinding disk and its carrier in the form of at least one pin, which is fastened to the carrier and engages in a hole or recess in the grinding disk, makes it possible for the floating mount of the grinding disk to be configured in the form of a hydrostatic bearing or a gas bearing without being affected by the coupling between the grinding disk and its carrier, so that a good mounting of the grinding disk is provided.
  • a grooved grinding ring with grinding surfaces is mounted in an adjustable manner, e.g., floating, on the carrier, which serves as a shaft for the rotary drive.
  • the grinding ring is movable in the direction of the axis (of rotation), without the grinding ring being spring-loaded into its starting position.
  • the grinding surfaces can thus follow the edges to be trimmed on the sides of the workpiece (the glass panel), if edges, for example because of distortions of the workpiece (the glass panel), deviate in one direction or the other from the target position in the direction of the axis (of rotation).
  • the grinding surfaces are provided on a grinding ring, which is supported on the carrier, for example in an elastic manner.
  • the grinding surfaces are provided on two grinding ring parts, which are arranged to move relative to one another and on the carrier in the direction of the axis (of rotation) and are to be spring-loaded toward one another.
  • the object of the invention can be achieved in that a grooved grinding ring that forms grinding surfaces with its groove walls is arranged to move in the direction of the axis (of rotation) of the carrier against spring force.
  • This can be achieved, for example, in that the grinding ring is mounted movably on its carrier in the direction of the axis of rotation of a carrier against the force of springs, which act on both sides of the grinding ring.
  • a grinding ring which optionally comprises two grinding ring parts, is in general provided on the carrier of the device according to the invention.
  • consideration is also given to embodiments in which more than one grinding ring and/or more than one pair of grinding ring parts are provided on a carrier.
  • two or more than two grinding rings and/or pairs of grinding ring parts are provided on one carrier, one-part grinding rings and grinding rings that are divided into grinding ring parts can be combined.
  • consideration is given to arranging grinding rings with various grooves (trapezoidal, V-shaped, etc.) and/or differently-shaped grinding surfaces on a carrier.
  • the grinding rings that are provided within the framework of the invention can be configured for erosion-treating (e.g., trimming) and also for polishing the sides of workpieces.
  • spring that is used heretofore encompasses any type of elastic means that act on a grinding ring or grinding ring parts. Examples are metal springs (coil springs), gas springs (pneumatic springs), and liquid springs.
  • the invention offers one or more of the advantages that are mentioned below:
  • FIGS. 1 to 4 show, in axial section, an embodiment in various operating positions when glass panels are being trimmed
  • FIGS. 5 to 9 show another embodiment in various operating positions as well as details
  • FIGS. 10 and 11 show another embodiment in various operating positions
  • FIG. 12 shows an embodiment with a grinding ring that is mounted to float.
  • FIGS. 1 to 4 which device is designed like a grinding disk, comprises a carrier 12 that serves as a (drive) shaft and a grinding ring 25 that consists of two grinding ring parts 6 .
  • the grinding ring parts 6 are arranged to move in the direction of the shaft 2 of the carrier 12 on the carrier 12 that is designed as a spindle, as is indicated in FIGS. 3 and 4 by the arrows 13 .
  • a line 14 for feeding liquid (feeding water) is provided in the carrier 12 , so that the grinding ring parts 6 of the grinding ring 25 are mounted (to float) on the carrier 12 via a hydrostatic bearing.
  • a hydrostatic bearing instead of hydrostatic bearings for the grinding ring 25 or the grinding ring parts 6 , gas (air) bearings can also be provided.
  • a gas e.g., air
  • a gas is fed via the line 14 .
  • fed liquid exits via the gap 15 between the grinding ring parts 6 in the direction toward the workpiece 8 (the glass panel that is to be machined), so that the workpiece 8 , e.g., a glass panel, is cooled with the liquid during the machining in order to trim edges 9 on its side 10 .
  • the grinding ring parts 6 have grinding surfaces 7 , which are curved in a conical or concave manner and act by ablation on the workpiece 8 (glass panel) that is to be machined when the device 1 is being used for trimming the edges 9 of a side 10 .
  • the grinding ring parts 6 of the embodiment shown in FIGS. 1 to 4 are to be loaded on one another in terms of a movement by springs 16 , coil springs in the example, that are arranged between the grinding ring parts 6 and the shoulders 17 of the carrier 12 .
  • the grinding ring parts 6 are supported on the carrier 12 by springs 16 , the grinding ring parts 6 can follow the path of the side 10 of the workpiece 8 (glass panel) that is to be machined, without special guide measures being necessary.
  • the reason for this is that the grinding surfaces 7 of the grinding ring parts 6 are flexible in an elastically springy manner and are positioned under springy prestress on the edges 9 that are to be trimmed of the workpiece 8 , such as a glass panel, even if the workpiece 8 deviates from the desired size, position, and/or shape.
  • pins 18 that serve as driving pins and/or guide pins are provided for torque transfer, which pins are arranged on a flange 19 of the carrier 12 and grip with the slide guide through holes 20 in the gripping ring parts 6 .
  • Shown in FIG. 1 is the ideal case, in which the workpiece 8 that is to be machined (the glass panel that is to be machined) is oriented precisely (symmetrically) to the plane of symmetry (plane perpendicular to the shaft 2 , which is in the center between the grinding ring parts 6 ) of the device 1 .
  • FIG. 2 shows a misalignment of a workpiece 8 , as frequently occurs in practice, wherein the grinding surfaces 7 of the grinding ring parts 6 act on edges 9 of the side 10 of the workpiece 8 uniformly (centered) and in this case are offset relative to the position shown in FIG. 1 .
  • FIGS. 2, 3, and 4 for the sake of clarity, in each case a workpiece 8 that is not more greatly offset is shown above the machined workpiece 8 , which is more greatly offset.
  • FIG. 3 the case is shown in which the workpiece 8 is laterally offset relative to the target position and thus is larger than that corresponding to the target measurement (blank cut with excess).
  • the grinding surfaces 7 of the device 1 follow the edges 9 of the side 10 of the workpiece 8 , wherein the grinding ring parts 6 move in the direction of the shaft 2 from their basic position ( FIG. 1 ). Since the workpiece 8 that is to be machined has an excess, i.e., is larger than that corresponding to the target size, the grinding ring parts 6 are moved apart against the force of the springs 16 , and the grinding surfaces 7 are automatically oriented into the correct position.
  • FIG. 4 the case is shown in which the workpiece 8 (the glass panel) is oriented correctly, i.e., is not offset laterally but has an excess, i.e., is larger than the target measurement, wherein even in this case, the grinding surfaces 7 of the grinding ring parts 6 are correctly oriented to the edges 9 and act adjoining the edges 9 in an elastic manner.
  • the grinding surfaces 7 of the grinding ring parts 6 of the grinding ring 25 are designed to be elastically flexible in the embodiment shown in FIGS. 1 to 4 .
  • the grinding surfaces 7 are automatically oriented relative to the edges 9 to be machined of the flat workpiece 8 (glass panel), since they adjoin the workpiece 8 (glass panel) under elastic prestress.
  • FIGS. 5 to 9 an embodiment of the device 1 according to the invention, modified relative to the embodiment of FIGS. 1 to 4 , which device is designed essentially as a grinding disk, is shown.
  • the grinding ring 25 comprises two grinding ring parts 6 with conical grinding surfaces 7 , which are arranged to move on a carrier 12 that serves as a base element in the direction of the shaft 2 of the device 1 .
  • the spring forces that move the grinding ring parts 6 into their action position and in addition press in an elastically springy manner on the edges 9 that are to be trimmed of the side 10 of the flat workpiece 8 (glass panel) are applied, in the embodiment shown in FIGS. 5 to 9 , by the pressure at which liquid or gas is fed for the bearing.
  • an annular space 21 into which liquid or gas is introduced, is provided to each grinding ring part 6 .
  • the annular space 21 is bounded by the carrier 12 , the grinding ring parts 6 , and a sleeve-like element 22 (tube-like part) that is provided on the grinding ring parts 6 .
  • hydraulic springs or gas springs that act by pressure in the axial direction are formed, which springs load the grinding ring parts 6 , and thus their grinding surfaces 7 , in an elastically springy manner in terms of a movement toward one another.
  • the pressing of the grinding surfaces 7 of the grinding ring parts 6 can be varied in order to produce optionally smaller or larger bevels (see FIGS. 5 and 6 ).
  • the embodiment that is shown in FIGS. 5 to 9 has the advantage that the grinding ring parts 6 of the grinding ring 25 and thus their grinding surfaces 7 can be moved by the workpiece 8 (the glass panel) in the axial direction, without changing the pressing force (in the case of unchanged pressure of the medium or gas).
  • the sleeve-like elements 22 (tube-like parts) that are provided on the grinding ring parts 6 have openings 23 (holes). Normally (cf. FIGS. 5 and 6 ), the openings 23 are arranged outside of the annular spaces 21 , to which is fed liquid or gas for the liquid springs or the gas springs. Only when the position according to FIGS.
  • the grinding ring parts 6 of the embodiment shown in FIGS. 5 to 9 are coupled to the carrier 12 for rotation.
  • pins 18 similar to the pins 18 of the embodiment that is shown in FIGS. 1 to 4 , are provided.
  • the device 1 has an undivided grinding ring 25 with a trapezoidal groove 5 , wherein the lateral (conical) groove surfaces are designed as grinding surfaces 7 .
  • the grinding ring 25 is coupled for rotation to the carrier 12 by the pins 18 , which are fastened on the flange 19 of the carrier 12 and engage in a sliding manner in recesses, e.g., holes 20 , of the grinding ring 25 , so that torque transfer is provided.
  • springs 16 e.g., coil springs, are provided as elastically springy reset elements, which orient the grinding ring 25 in its starting position (standby position), which is shown in FIG. 10 .
  • a line 14 for feeding a liquid or gaseous medium for a hydrostatic bearing or a gas bearing of the grinding ring 25 (floating mount), which makes possible its movement relative to the carrier 12 in the axial direction, is provided.
  • the grinding ring 25 of FIGS. 10 and 11 is coupled for rotation by pins 18 to the carrier 12 .
  • FIG. 11 shows the case in which the workpiece 8 (the glass panel that is to be machined) deviates from the target position (indicated above in FIG. 10 ), e.g., because of a discarded workpiece.
  • the grinding ring 25 that can be moved against spring force on the carrier 12 and thus its grinding surfaces 7 are automatically oriented with respect to the edges 9 by the grinding ring 25 moving on the carrier 12 in the direction of the shaft 2 .
  • the grinding surfaces 7 are also elastically springy, follow the edges 9 , and under elastic prestress are uniformly positioned on the edges 9 that are to be trimmed of the workpiece 8 .
  • Such an embodiment is shown by way of example in FIG. 12 .
  • the device 1 shown in FIG. 12 , for trimming the edges 9 of the sides 10 of a flat workpiece 8 , such as, for example, a glass panel, is designed essentially in the form of a grinding disk and essentially corresponds to the embodiment shown in FIGS. 10 and 11 , wherein, however, the springs 16 are not provided.
  • An arrangement of the grinding ring 25 that can be moved in the direction of the axis (of rotation) 2 is produced by the floating mount of the grinding ring 25 on the carrier 12 , so that the latter can automatically follow the side 10 of the workpiece 8 , even if the latter deviates from the target position, as is shown by the arrows in FIG. 12 .
  • This is the case in particular when deviations of the side 8 occur in the direction of the shaft 2 , around which the device 1 with its grinding ring 25 is rotated, since the workpiece 8 (the glass panel) is discarded, i.e., is rough.
  • the groove 5 of the grinding 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 lateral faces of the workpiece 8 that are oriented crosswise to the plane of the workpiece 8 .
  • the base of the groove 5 acts on the lateral face of the workpiece 8 in a machining manner, for example polishing.
  • Grinding rings 25 with a V-shaped groove 5 are used, for example, if only the edges 9 are to be erosion-treated (trimmed) on sides 10 of workpieces 8 .
  • a grinding ring 25 that is rotated around a shaft 2 by a drive is used.
  • the grinding surfaces 7 that act by ablation on the edges 9 of the side 10 of the workpiece 8 are designed to move in the axial direction, so that during trimming, they can follow the edges 9 of the workpiece 8 .
  • the grinding surfaces 7 are automatically positioned on the edges 9 that are to be trimmed of the workpiece 8 , even if the edges 9 do not lie in the prescribed 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)
US17/628,421 2019-07-22 2020-07-20 Device for processing the borders of flat workpieces Pending US20220266407A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATA261/2019 2019-07-22
AT2612019 2019-07-22
PCT/EP2020/070409 WO2021013779A1 (de) 2019-07-22 2020-07-20 Vorrichtung zum bearbeiten von rändern von flächigen werkstücken

Publications (1)

Publication Number Publication Date
US20220266407A1 true US20220266407A1 (en) 2022-08-25

Family

ID=71786911

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/628,421 Pending US20220266407A1 (en) 2019-07-22 2020-07-20 Device for processing the borders of flat workpieces

Country Status (5)

Country Link
US (1) US20220266407A1 (de)
EP (1) EP4003644A1 (de)
CN (1) CN114080298A (de)
AT (1) AT17015U1 (de)
WO (1) WO2021013779A1 (de)

Family Cites Families (14)

* 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
AT408856B (de) 1997-12-02 2002-03-25 Lisec Peter Vorrichtung zum automatischen säumen von plattenförmigen gegenständen
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
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

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Publication number Publication date
EP4003644A1 (de) 2022-06-01
WO2021013779A1 (de) 2021-01-28
CN114080298A (zh) 2022-02-22
AT17015U1 (de) 2021-02-15

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