EP0846525A1 - Verfahren zum Randschleifen von Glasplatten - Google Patents

Verfahren zum Randschleifen von Glasplatten Download PDF

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Publication number
EP0846525A1
EP0846525A1 EP97117721A EP97117721A EP0846525A1 EP 0846525 A1 EP0846525 A1 EP 0846525A1 EP 97117721 A EP97117721 A EP 97117721A EP 97117721 A EP97117721 A EP 97117721A EP 0846525 A1 EP0846525 A1 EP 0846525A1
Authority
EP
European Patent Office
Prior art keywords
sheet
rollers
overflow
tool
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.)
Withdrawn
Application number
EP97117721A
Other languages
English (en)
French (fr)
Inventor
Valerio Rosso
Oriano Bertoncello
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.)
Castelmec Sas Di Rosso Valerio & C
Original Assignee
Castelmec Sas Di Rosso Valerio & C
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 Castelmec Sas Di Rosso Valerio & C filed Critical Castelmec Sas Di Rosso Valerio & C
Publication of EP0846525A1 publication Critical patent/EP0846525A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • B24B21/12—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving a contact wheel or roller pressing the belt against the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories
    • B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0084—Other grinding machines or devices the grinding wheel support being angularly adjustable
    • 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

Definitions

  • the invention relates to a device for overflowing, by an abrasion operation, the edges of the sheets of glass according to the preamble of claim 1.
  • Opposite the wall is the device that performs the coating portion removal operation adjacent to the edges of the sheet and which is movable in translation on vertical guides with possibility of moving back and forth.
  • a first known process for removing the coating of the metal layer consists of the use of burners directed to the edge of the glass sheet but this system is limited because only a small number of the coatings can be removed using the burners.
  • Another process which serves as well for removal of the metal layer only for more operations general cleaning of the edges of a glass sheet, provides for the use of one or more abrasive wheels mounted on a vertically sliding support, as well that can be turned 90 ° around an axis perpendicular to the sheet itself, and which goes through the point of contact between the latter and the tool in the working position.
  • a first drawback derives from the fact that the grinding wheel work phase must exert pressure, although minimal, on the glass sheet to perform the abrasion action and whereas, in the case of thin glass sheets, this may cause cracking, otherwise the rupture of this last.
  • a second drawback derives from the fact that the consumption of the grinding wheel during the working phase requires the use of a device to compensate for wear of the abrasive layer so that the grinding wheel is always in contact and exerting the right pressure against the surface of the glass sheet to be treated.
  • the first type of drawback has been partially eliminated by making in the support wall of the glass sheet, to the right of the work area, a vertical slot on which we inserted a cylinder which turns around its axis vertical and which has the function of regulating the pressure exerted by the tool in the working phase on the element to be worked.
  • the object of the present invention is to provide a device for edge abrasion machining, commonly called overflowing, of a sheet of glass having for first purpose of ensuring that the abrasion action is not concentrated in one point but on the contrary, it is extended over a surface, even if it is limited, in order to reduce the tool pressure during the working phase and avoid breaking the sheet.
  • Another goal is to be able to use a tool abrasive of a reduced cost but also of a long duration of life and which can be replaced once fully worn, in a simple way and in seconds.
  • rollers which support the strip have their axis of rotation parallel to the work sheet and are anchored on a plate arranged perpendicular to said sheet, which plate is in turn supported by a group which allows it to run vertically in both sense, as well as rotations at angles of 90 ° around of an axis perpendicular to the same sheet to be worked, of way to expose to the abrasion operation as well the horizontal edges as the vertical edges of the latter.
  • the abrasive strip which constitutes the novelty of the invention is driven and held in tension by three rollers, one of which, of larger diameter, motorized roller, while the other two, arranged in superposition, serve to keep the part of the strip which will be placed in contact with the sheet of glass.
  • one of the two rollers which form the pair of rollers provided for belt tension is removable, so that its spacing out of position working eliminates tension on the abrasive belt and allows to remove it and replace it with a new band.
  • At least one of these small rollers provided a return spring, acts as a feeler, i.e. that it detects the presence of the glass sheet on the roller conveyor and, in the correct position, stops the approximation stroke of the plate which supports the strip abrasive at the start of each work cycle.
  • the device described above which includes essentially the abrasive belt, the rollers circulation and support plate, can be anchored in fixed position to the machine structure. In this way, it will be possible to work only one region of edges of the glass sheet, for example, the region lower horizontal.
  • the glass sheet is moved on conveyors with rollers or conveyor belts of known type, arranged at the base of the wall of support and, moreover, the whole system, because it must operate fully automatically, will be equipped with photocells, proximity switches and analogs capable of regulating the operation of the assembly of the installation.
  • the glass sheet 1 metallized is supported on the support wall 2, substantially vertical, and on the rotating cylinder 3, placed opposite the work tool, which will be described below and it is driven by rollers 4 placed below of said wall.
  • the movement of the overflow group 5 upwards or down is the result of the movement of the carriage 6, connected by means of a chain 8, to the deflection rollers 9 actuated by a motor not shown in the figure.
  • the entire overflow group 5 consists of a support plate 10, anchored to the carriage 6, provided with a shaft projection 11 on which a bearing block 12 is wedged which supports the overflow tool 13.
  • the overflow tool 13 which represents the novelty of the invention is essentially constituted by a strip abrasive 14, with closed profile, kept taut and placed rotation by means of three rollers 15, 16 and 17 placed at inside the profile of said strip and supported by the plate 18, itself vertical and perpendicular to the glass sheet 1.
  • the first roller 15, of larger diameter, has for function of circulating the abrasive belt 14, and it is actuated by means of the belt 19 by the motor electric 20 supported by block 12.
  • the two end rollers 16 and 17, mad and placed in the front position, near sheet 1, have for function of delimiting the portion 21 of the abrasive strip which will come into contact with the surface of the sheet itself.
  • the roller 16 is mounted directly on the plate support 18 while the roller 17 spins at the end a lever 22, which is in turn articulated on said plate (see figure 2).
  • the push spring 23 acts on the lever 22 so so that the corresponding roller 17 is always in the maximum tension position of the abrasive belt 14.
  • This provision is also intended to facilitate the replacement of the abrasive belt 14, since, by overcoming the resistance of spring 23, for example by pressing manually on the handle 24, connected to the lever 22, we lowers the roller 17, so that said strip relaxes and can be easily removed.
  • the idler roller 25 is advantageously journaled at the end of a lever 26 articulated on the plate 18 and put in motion by a pneumatic piston 27, anchored on the same plate (see figure 2) and which regulates the working pressure abrasion.
  • the roller 29 is mounted directly on the plate 18 while the other small roller 30 is supported by a lever 31, journalled on said plate and pushed towards the glass sheet by a biasing spring 32.
  • roller 30 The function of the roller 30 is that of the feeler of the presence of the glass sheet to be worked, so that the overflow group 5 approaches the sheet, then stops at the correct distance from the sheet, depending on the thickness of it.
  • the overflow group 5 is also provided with a rotational movement around said axis 33, to orient themselves at an angle of 90 °, which allows you to work upper and lower horizontal edge regions of said sheet.
  • This orientation of the device 5 according to angles of 90 °, so that the plate 18, with its accessories, is alternately in vertical position and in position horizontal, carried out using a pneumatic cylinder 34 which, via a stirrup 35, is mounted mad on a pin 36, integral with the support plate 10, while that a rod 37 secured to the cylinder 34, is also mounted crazy on the body of the carrier block 12.
  • An alternative embodiment relative to that which is illustrated, provides for the possibility of using, in additional overflow tool 13, vertically movable, another overflow tool 13, blocked on the structure machine carrier and arranged horizontally in the lower part of the support wall 2, so that ability to work lower horizontal edge region glass sheet 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
EP97117721A 1996-10-16 1997-10-14 Verfahren zum Randschleifen von Glasplatten Withdrawn EP0846525A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI960162 1996-10-16
IT96VI000162A IT1287347B1 (it) 1996-10-16 1996-10-16 Dispositivo per la sbordatura di lastre di vetro

Publications (1)

Publication Number Publication Date
EP0846525A1 true EP0846525A1 (de) 1998-06-10

Family

ID=11426161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117721A Withdrawn EP0846525A1 (de) 1996-10-16 1997-10-14 Verfahren zum Randschleifen von Glasplatten

Country Status (2)

Country Link
EP (1) EP0846525A1 (de)
IT (1) IT1287347B1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1167312A1 (de) * 2000-06-27 2002-01-02 Bando Kiko Co. Ltd. Verfahren und Vorrichtung zum Entfernen von Beschichtungen auf Glasscheiben und Glasbearbeitungsanlage versehen mit einer diese Vorrichtung ausgestattetten Station
US7682220B2 (en) 2001-12-06 2010-03-23 Bando Kiko Co., Ltd. Glass-plate working apparatus
ITVI20090093A1 (it) * 2009-04-28 2010-10-29 Costa Levigatrici Spa Levigatrice a nastro, gruppo di levigatura e relativo metodo per applicare incavature irregolari particolarmente su pannelli in legno
CN103707152A (zh) * 2013-12-16 2014-04-09 南充市长远铝业有限公司 铝型材自动去毛刺机
CN109693165A (zh) * 2017-10-24 2019-04-30 冯肃钢 一种滚筒型全自动玻璃饰品研磨抛光机
CN110695819A (zh) * 2019-11-21 2020-01-17 重庆大学 一种双轴驱动砂带磨头
CN111993229A (zh) * 2020-08-18 2020-11-27 李英 一种机械工程金属打磨装置
TWI808215B (zh) * 2018-07-20 2023-07-11 日商荏原製作所股份有限公司 研磨裝置及研磨方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110450010B (zh) * 2019-08-22 2021-01-26 安徽富亚玻璃技术有限公司 一种玻璃打磨导向装置
CN111390684B (zh) * 2020-03-20 2021-01-01 温州职业技术学院 一种用于电机转子流水线的去毛刺装置
CN116604431B (zh) * 2023-07-17 2023-12-19 山西日盛达太阳能科技股份有限公司 一种玻璃磨边倒角设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1995382A (en) * 1931-01-19 1935-03-26 Ray M Fenton Apparatus for treating sheets
EP0086716A2 (de) * 1982-02-15 1983-08-24 Saint Gobain Vitrage International Herstellung von Mehrfachscheiben aus mit einem metallischen Überzug beschichteten Glasscheiben
DE3408675A1 (de) * 1984-03-09 1985-10-03 Peter Amstetten-Hausmening Niederösterreich Lisec Vorrichtung zum bearbeiten der randbereiche tafelfoermiger elemente
US4716686A (en) * 1984-06-14 1988-01-05 Peter Lisec Device for treating the edge zones of plate-shaped elements
EP0499371A1 (de) * 1991-01-26 1992-08-19 Pilkington Plc Herstellung von Verbundglasscheiben
DE4326890A1 (de) * 1993-08-11 1995-02-16 Torgauer Maschinenbau Gmbh Vorrichtung zum Schleifen der Kanten von platten- oder tafelförmigen Werkstücken
WO1996008333A1 (en) * 1994-09-15 1996-03-21 Robert Arnold Garvin Shaping machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1995382A (en) * 1931-01-19 1935-03-26 Ray M Fenton Apparatus for treating sheets
EP0086716A2 (de) * 1982-02-15 1983-08-24 Saint Gobain Vitrage International Herstellung von Mehrfachscheiben aus mit einem metallischen Überzug beschichteten Glasscheiben
DE3408675A1 (de) * 1984-03-09 1985-10-03 Peter Amstetten-Hausmening Niederösterreich Lisec Vorrichtung zum bearbeiten der randbereiche tafelfoermiger elemente
US4716686A (en) * 1984-06-14 1988-01-05 Peter Lisec Device for treating the edge zones of plate-shaped elements
EP0499371A1 (de) * 1991-01-26 1992-08-19 Pilkington Plc Herstellung von Verbundglasscheiben
DE4326890A1 (de) * 1993-08-11 1995-02-16 Torgauer Maschinenbau Gmbh Vorrichtung zum Schleifen der Kanten von platten- oder tafelförmigen Werkstücken
WO1996008333A1 (en) * 1994-09-15 1996-03-21 Robert Arnold Garvin Shaping machine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1167312A1 (de) * 2000-06-27 2002-01-02 Bando Kiko Co. Ltd. Verfahren und Vorrichtung zum Entfernen von Beschichtungen auf Glasscheiben und Glasbearbeitungsanlage versehen mit einer diese Vorrichtung ausgestattetten Station
US6743083B2 (en) 2000-06-27 2004-06-01 Bando Kiko Co., Ltd. Method of and apparatus for removing a film layer on a glass plate and glass-plate working apparatus having the apparatus
US6997783B2 (en) 2000-06-27 2006-02-14 Bando Kiko Co., Ltd. Method of and apparatus for removing a film layer on a glass plate and glass-plate working apparatus having the apparatus
US7682220B2 (en) 2001-12-06 2010-03-23 Bando Kiko Co., Ltd. Glass-plate working apparatus
ITVI20090093A1 (it) * 2009-04-28 2010-10-29 Costa Levigatrici Spa Levigatrice a nastro, gruppo di levigatura e relativo metodo per applicare incavature irregolari particolarmente su pannelli in legno
CN103707152A (zh) * 2013-12-16 2014-04-09 南充市长远铝业有限公司 铝型材自动去毛刺机
CN103707152B (zh) * 2013-12-16 2016-11-09 南充市长远铝业有限公司 铝型材自动去毛刺机
CN109693165A (zh) * 2017-10-24 2019-04-30 冯肃钢 一种滚筒型全自动玻璃饰品研磨抛光机
CN109693165B (zh) * 2017-10-24 2023-08-29 浦江众联水晶有限公司 一种滚筒型全自动研磨抛光机
TWI808215B (zh) * 2018-07-20 2023-07-11 日商荏原製作所股份有限公司 研磨裝置及研磨方法
CN110695819A (zh) * 2019-11-21 2020-01-17 重庆大学 一种双轴驱动砂带磨头
CN111993229A (zh) * 2020-08-18 2020-11-27 李英 一种机械工程金属打磨装置

Also Published As

Publication number Publication date
ITVI960162A1 (it) 1998-04-16
IT1287347B1 (it) 1998-08-04

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