WO2008107087A1 - Device for removing a coating from a glass pane - Google Patents

Device for removing a coating from a glass pane Download PDF

Info

Publication number
WO2008107087A1
WO2008107087A1 PCT/EP2008/001461 EP2008001461W WO2008107087A1 WO 2008107087 A1 WO2008107087 A1 WO 2008107087A1 EP 2008001461 W EP2008001461 W EP 2008001461W WO 2008107087 A1 WO2008107087 A1 WO 2008107087A1
Authority
WO
WIPO (PCT)
Prior art keywords
edge trimming
group
trimming group
bristles
brush
Prior art date
Application number
PCT/EP2008/001461
Other languages
French (fr)
Inventor
Paolo Zanetti
Vincenzo Tomasi
Original Assignee
Maver Glass Machinery S.R.L.
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 Maver Glass Machinery S.R.L. filed Critical Maver Glass Machinery S.R.L.
Priority to EP08716007A priority Critical patent/EP2114618A1/en
Publication of WO2008107087A1 publication Critical patent/WO2008107087A1/en

Links

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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/002—Grinding heads
    • 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
    • B24B41/047—Grinding heads for working on plane surfaces
    • B24B41/053—Grinding heads for working on plane surfaces for grinding or polishing glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/145—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face having a brush-like working surface

Definitions

  • edge trimming operation, by means of which a portion of the film which covers the low thermal emission glasses is removed.
  • Such glasses are used to manufacture the so-called “double glazing", made up of a coupling between two glass panes not kept reciprocally distanced by a perimeter framework which delimits and encloses the intermediate chamber.
  • the edge trimming operation consists in removing from the glass pane covered by a low emission film, a few microns thick, a strip of equivalent width with respect to the height of framework profile against which the abovementioned pane lies, to make a double glazing pane.
  • the edge-trimming operation is combined with the cutting operation, through which the single glass panes are cut to the required size, obtaining them from a larger pane, placed on the workbench.
  • edge trimming group is fixed on the nozzle, sliding along a moveable bar.
  • the edge-trimming operation of glass panes provided with the low emission film occurs by employing an abrasive spring, made is up of a rotating diamond slitting wheel, whose thickness is equivalent to the width of the film strip intended to be removed, which comes into contact with the abovementioned pane .
  • a first operation drawback is due to the quick wear of the disc, hence requiring continuous adjustment to recover abrasion and to maintain the contact with the pane, until the disc itself is replaced; this inevitably requires stopping machine.
  • a second operation drawback is due to dust particles which form during the abrasion and which, due to their composition, are harmful to the operator.
  • the diamond slitting wheel coming into contact with the film made of plastic material, loses its abrasion properties after operating for a given period of time, and thus it must be replaced, hence leading to stopping the machine temporarily.
  • the objective of the present finding is that of manufacturing an edge trimming group for glass panes covered by a low emission film, free of the drawbacks revealed by similar groups of the known type.
  • the objective of the present finding is that of manufacturing an edge trimming group which is easy to construct, does not require frequent replacement of the of the abrasive tool and capable of ensuring ideal work conditions for the operator.
  • Fig 1 represents a perspective view of a nozzle provided with the edge trimming group according to the finding
  • Fig. 2 represents an elevation and section view of said nozzle following lines II-II of fig. 1;
  • Fig. 3 represents an exploded view of the edge trimming group according to fig. 2 ;
  • FIGS. 4 and 5 represent two detailed views of the edge trimming group respectively in the idle and operating steps
  • Fig. 6 represents a particular shape of the abrasive tool according top the finding.
  • the edge-trimming group 10 comprises an abrasive tool made up of a paintbrush-shaped brush 11, directly fixed onto an electric motor 12, in turn fixed onto a cutting group 5 by means of screws 8.
  • the entire brush 11 is held inside a chuck 13, integrally joined to the motor 12 and which is provided, at the lower part, with a rolling bearing 14, which keeps firmly constrained the most external bristles of said brush.
  • a ring 15 Fitted in the lower part of the chuck 13 is a ring 15, moveable vertically, which serves to prevent dispersion of the abrasive dust particles into the environment.
  • the moveable ring 15 during the idle step, is withheld by the projecting pin 16, which is engaged into the slit 17, while during the operating abrasion step said ring lies on the surface of the glass pane, thus defining a vacuum chamber 18, which withholds the abrasion dust particles which are evacuated through a pipe 19, extending from the chuck 13 and connected, by means of a flexible external pipe 20, to a suction device, preferably of the so- called "Venturi pipe" type.
  • the abrasive tool 11 is ha the body 21 of the bristles provided with a cavity 22 which reduces the contact surface between the bristles and the film 3, thus ensuring longer durability of the tool itself.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cleaning In General (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Glass Compositions (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention regards an edge trimming group for glass panes covered by a low emission film. Such group is characterised in that the abrasive tool is made up of a brush of the so-called 'paintbrush' type, with bristles made of steel or any other material adapted to ensure an accurate removal of a portion (1) of the low emission film (2) from the pane (3).

Description

DEVICE FOR REMOVING A COATING FROM A GLASS PANE
The present finding regards an edge trimming group for glass panes according to the overview part of claim 1.
Included among the various machining operations to which glass panes are subjected is the so-called "edge trimming" operation, by means of which a portion of the film which covers the low thermal emission glasses is removed.
Such glasses are used to manufacture the so-called "double glazing", made up of a coupling between two glass panes not kept reciprocally distanced by a perimeter framework which delimits and encloses the intermediate chamber.
Specifically, the edge trimming operation consists in removing from the glass pane covered by a low emission film, a few microns thick, a strip of equivalent width with respect to the height of framework profile against which the abovementioned pane lies, to make a double glazing pane.
The edge-trimming operation is combined with the cutting operation, through which the single glass panes are cut to the required size, obtaining them from a larger pane, placed on the workbench.
Usually the edge trimming group is fixed on the nozzle, sliding along a moveable bar.
According to current technique, the edge-trimming operation of glass panes provided with the low emission film occurs by employing an abrasive spring, made is up of a rotating diamond slitting wheel, whose thickness is equivalent to the width of the film strip intended to be removed, which comes into contact with the abovementioned pane .
From a practical point of view, such operation system reveals numerous drawbacks both in terms of construction and operation . Construction drawbacks are due to the fact that, in order to ensure an accurate removal of the film, the diamond slitting wheel must rotate at a high velocity and remain pressed against the surface, thus requiring construction of a rather complex support structure.
A first operation drawback is due to the quick wear of the disc, hence requiring continuous adjustment to recover abrasion and to maintain the contact with the pane, until the disc itself is replaced; this inevitably requires stopping machine.
A second operation drawback is due to dust particles which form during the abrasion and which, due to their composition, are harmful to the operator.
Lastly, the diamond slitting wheel, coming into contact with the film made of plastic material, loses its abrasion properties after operating for a given period of time, and thus it must be replaced, hence leading to stopping the machine temporarily.
The objective of the present finding is that of manufacturing an edge trimming group for glass panes covered by a low emission film, free of the drawbacks revealed by similar groups of the known type.
Specifically, the objective of the present finding is that of manufacturing an edge trimming group which is easy to construct, does not require frequent replacement of the of the abrasive tool and capable of ensuring ideal work conditions for the operator.
Such objectives are attained by an edge-trimming group using a "paintbrush-shaped" brush as an abrasive tool, with steel bristles and rotating around its longitudinal axis.
Said objectives are further obtained by providing for the rotating brush to be directly fixed onto a motor, integrally joined with the pane cutting group.
Still such objectives are obtained by proving for the brush to be provided with a device which holds the bristles, to ensure an accurate width of the portion removed by means of abrasion, as well as a device preventing the dust particles from being dispersed into the environment, by means of complete suction of the same.
The finding shall be defined better through the description of one of its possible embodiments, strictly provided for exemplifying and non-limiting purposes, with the help of the drawing tables attached, wherein:
Fig 1 represents a perspective view of a nozzle provided with the edge trimming group according to the finding;
- Fig. 2 represents an elevation and section view of said nozzle following lines II-II of fig. 1;
Fig. 3 represents an exploded view of the edge trimming group according to fig. 2 ;
Figures 4 and 5 represent two detailed views of the edge trimming group respectively in the idle and operating steps;
Fig. 6 represents a particular shape of the abrasive tool according top the finding.
As observable in fig. 1, in order to remove the portion 1 of the low emission film 2, covering the glass pane 3 placed on the work surface 4, employed is an edge trimming group, indicated in its entirety by number 10, fixed onto the cutting group, indicated in its entirety with reference
5, integrally joined with a plate 6, sliding along a bar 7, the overall structure according to methods already known.
As visible in fig. 2, the edge-trimming group 10 comprises an abrasive tool made up of a paintbrush-shaped brush 11, directly fixed onto an electric motor 12, in turn fixed onto a cutting group 5 by means of screws 8.
The entire brush 11 is held inside a chuck 13, integrally joined to the motor 12 and which is provided, at the lower part, with a rolling bearing 14, which keeps firmly constrained the most external bristles of said brush.
Fitted in the lower part of the chuck 13 is a ring 15, moveable vertically, which serves to prevent dispersion of the abrasive dust particles into the environment.
As a matter of fact, as evident upon observation of figures 4 and 5, the moveable ring 15, during the idle step, is withheld by the projecting pin 16, which is engaged into the slit 17, while during the operating abrasion step said ring lies on the surface of the glass pane, thus defining a vacuum chamber 18, which withholds the abrasion dust particles which are evacuated through a pipe 19, extending from the chuck 13 and connected, by means of a flexible external pipe 20, to a suction device, preferably of the so- called "Venturi pipe" type.
Lastly, as observable in fig. 6, the abrasive tool 11 is ha the body 21 of the bristles provided with a cavity 22 which reduces the contact surface between the bristles and the film 3, thus ensuring longer durability of the tool itself.
Obviously there are various embodiment of the device according to the finding, depending on the type and shape of the abrasive tool, without, for this reason, departing from the scope of the following claims.

Claims

1. EDGE TRIMMING GROUP FOR GLASS PANES, covered by a low emission film, characterised in that the abrasive tool is made up of a brush of the so-called "paintbrush" (11) type, provided with bristles made of steel or any other material adapted to ensure an accurate removal of a portion (1) of the low emission film (2) from the pane (3) .
2. EDGE TRIMMING GROUP, according to claim 1, characterised in that the abrasive tool (11), is directly fixed onto a motor (12), from which it receives the rotation drive.
3. EDGE TRIMMING GROUP, according to claim 1, characterised in that it is provided with an abrasion dust particles suction means.
4. EDGE TRIMMING GROUP, according to claim 1, characterised in that it is provided with a device for keeping the steel bristles constrained.
5. EDGE TRIMMING GROUP, according to one or more of the of the preceding claims, of the type wherein it is provided for that, in order to remove the portion (1) of the low emission film (2), covering the glass pane (3), placed on the work surface (4) an edge trimming group (10) is employed, fixed onto the cutting group (5), in turn integrally joined with the plate (6), sliding along a bar (7), said edge trimming group (10) being characterised in that it comprises an abrasive tool made up of a paintbrush-shaped brush (11), directly fixed onto an electric motor (12), in turn fixed onto the cutting group (5), by means of the screws (8) .
6. EDGE TRIMMING GROUP, according to claim 5, characterised in that the entire brush (11) is held inside a chuck (13), integrally joined with the motor (12).
7. EDGE TRIMMING GROUP, according to claim 6, characterised in that the chuck (13) is provided, at the lower part, with a rolling bearing (14), which keeps the most external bristles of the brush (11) firmly constrained.
8. EDGE TRIMMING GROUP, according to claim 6, characterised in that fitted on the lower part of the chuck (13) is a ring
(15), moveable vertically, which, during the idle step is held raised by means of a projecting pin (16), which engages in the slit (17), while, during the abrasion operation step, said ring lies on the surface of the pane (2), thus defining a vacuum chamber (18), which withholds abrasion dust particles .
9. EDGE TRIMMING GROUP, according to claim 8, characterised in that the abrasion dust particles are evacuated from the vacuum chamber (18)through a pipe (19), extending from the chuck (13) connected, through an external flexible pipe (20), to a suction device.
10. EDGE TRIMMING GROUP, according to claim 9, characterised in that the abrasion dust particles suction device is made up of a so-called "Venturi pipe".
11. EDGE TRIMMING GROUP, according to one or more of the preceding claims, characterised in that the abrasive tool
(11) has the body (21) of the bristles provided with a cavity (22), for reducing the contact surface between the bristles and the film (2) .
On behalf of:
PCT/EP2008/001461 2007-03-07 2008-02-25 Device for removing a coating from a glass pane WO2008107087A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08716007A EP2114618A1 (en) 2007-03-07 2008-02-25 Device for removing a coating from a glass pane

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI20070066 ITVI20070066A1 (en) 2007-03-07 2007-03-07 PANELING GROUP FOR GLASS SHEETS
ITVI2007A000066 2007-03-07

Publications (1)

Publication Number Publication Date
WO2008107087A1 true WO2008107087A1 (en) 2008-09-12

Family

ID=39472729

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/001461 WO2008107087A1 (en) 2007-03-07 2008-02-25 Device for removing a coating from a glass pane

Country Status (3)

Country Link
EP (1) EP2114618A1 (en)
IT (1) ITVI20070066A1 (en)
WO (1) WO2008107087A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011042057A1 (en) * 2009-10-08 2011-04-14 Komax Holding Ag Device and method for removing coatings from solar modules
EP2522461A1 (en) 2011-05-12 2012-11-14 Biesse S.p.A. Rotatable brush for the removal of a coating from a glass plate
WO2015054707A1 (en) 2013-10-18 2015-04-23 Lisec Austria Gmbh Method and device for treating the surface of objects
EP3120971A1 (en) 2015-07-24 2017-01-25 Mecánicas Teruel S.L. Device and method for removing a plastic film layer from a glass panel
US12091348B2 (en) 2017-07-12 2024-09-17 Corning Incorporated Apparatus and methods for manufacturing a glass substrate

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408675A1 (en) * 1984-03-09 1985-10-03 Peter Amstetten-Hausmening Niederösterreich Lisec Apparatus for machining the edge regions of elements in the form of panes
DE9106843U1 (en) * 1991-06-04 1991-08-22 Hegla Fahrzeug- und Maschinenbau GmbH, 3472 Beverungen Device for preparing glass panes for multiple glazing with at least one coated glass pane
EP0769348A1 (en) * 1995-10-20 1997-04-23 FOR.EL. BASE di VIANELLO FORTUNATO & C. S.n.c. Method and device for removing coatings applied to the surface of a glass plate
DE19632240A1 (en) * 1996-05-09 1997-11-13 Hegla Fahrzeug Maschinenbau Local glass sheet coating removal appts.
AT403690B (en) * 1992-12-15 1998-04-27 Lisec Peter Apparatus for cutting a glass plate and for removing a coating from the glass plate
US20020132564A1 (en) * 2001-02-08 2002-09-19 Cardinal Glass Industries, Inc. Method and apparatus for removing coatings applied to surfaces of a substrate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408675A1 (en) * 1984-03-09 1985-10-03 Peter Amstetten-Hausmening Niederösterreich Lisec Apparatus for machining the edge regions of elements in the form of panes
DE9106843U1 (en) * 1991-06-04 1991-08-22 Hegla Fahrzeug- und Maschinenbau GmbH, 3472 Beverungen Device for preparing glass panes for multiple glazing with at least one coated glass pane
AT403690B (en) * 1992-12-15 1998-04-27 Lisec Peter Apparatus for cutting a glass plate and for removing a coating from the glass plate
EP0769348A1 (en) * 1995-10-20 1997-04-23 FOR.EL. BASE di VIANELLO FORTUNATO & C. S.n.c. Method and device for removing coatings applied to the surface of a glass plate
DE19632240A1 (en) * 1996-05-09 1997-11-13 Hegla Fahrzeug Maschinenbau Local glass sheet coating removal appts.
US20020132564A1 (en) * 2001-02-08 2002-09-19 Cardinal Glass Industries, Inc. Method and apparatus for removing coatings applied to surfaces of a substrate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011042057A1 (en) * 2009-10-08 2011-04-14 Komax Holding Ag Device and method for removing coatings from solar modules
EP2522461A1 (en) 2011-05-12 2012-11-14 Biesse S.p.A. Rotatable brush for the removal of a coating from a glass plate
WO2015054707A1 (en) 2013-10-18 2015-04-23 Lisec Austria Gmbh Method and device for treating the surface of objects
US9744638B2 (en) 2013-10-18 2017-08-29 Lisec Austria Gmbh Method for decoating a glass panel
EP3120971A1 (en) 2015-07-24 2017-01-25 Mecánicas Teruel S.L. Device and method for removing a plastic film layer from a glass panel
US12091348B2 (en) 2017-07-12 2024-09-17 Corning Incorporated Apparatus and methods for manufacturing a glass substrate

Also Published As

Publication number Publication date
EP2114618A1 (en) 2009-11-11
ITVI20070066A1 (en) 2008-09-08

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