EP3012066A1 - Maschine für die beidseitige bearbeitung von kanten von platten mit integrierten geräten zum verrunden der ecken - Google Patents

Maschine für die beidseitige bearbeitung von kanten von platten mit integrierten geräten zum verrunden der ecken Download PDF

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Publication number
EP3012066A1
EP3012066A1 EP15186794.2A EP15186794A EP3012066A1 EP 3012066 A1 EP3012066 A1 EP 3012066A1 EP 15186794 A EP15186794 A EP 15186794A EP 3012066 A1 EP3012066 A1 EP 3012066A1
Authority
EP
European Patent Office
Prior art keywords
plate
radiusing
tool
slide
machining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15186794.2A
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English (en)
French (fr)
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EP3012066B1 (de
Inventor
Marco Belli
Andrea Cucchi
Marco FURLANI
Massimiliano Gervasoni
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.)
Biesse SpA
Original Assignee
Biesse SpA
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Publication date
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Publication of EP3012066A1 publication Critical patent/EP3012066A1/de
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Publication of EP3012066B1 publication Critical patent/EP3012066B1/de
Active 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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/002—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor for travelling workpieces
    • 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
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
    • B24B47/04—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing only
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/18—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the presence of dressing tools
    • B24B49/183—Wear compensation without the presence of dressing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass
    • B24B9/102—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass for travelling sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • 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
    • B24B9/105—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 using a template

Definitions

  • the present invention relates to bilateral machines for machining edges of plates made of glass or stone and stone materials in general, of the type including a frame which comprises two banks each provided with a plurality of machining units and defining therebetween a machining area through which a plate to be machined is caused to advance, wherein the machining units on the two banks of the machine are adapted to perform a machining operation of the two lateral edges of the plate while the latter advances through the machining area.
  • the object of the present invention is that of providing a bilateral machine of the above indicated type which enables new functionalities and further types of machining operations to be integrated therein, with the advantage of greater productivity and flexibility of the plant and elimination of space and resources which otherwise would be required for providing machines dedicated to performing the above mentioned further machining operations.
  • the invention provides a bilateral machine of the above indicated type, whose main feature lies in that within said machine there is included at least one radiusing device adapted to impart a circular radiused profile to the plate being machined at least at one corner defined between two adjacent sides of the plate.
  • edge of the plate is used to indicate anyone of the sides of the plate.
  • lateral edges of the plate designates the two sides of the plate which are parallel to the direction of advancement of the plate along the machining area.
  • corner of the plate designates anyone of the four corners which, in a plan view of the plate, are defined between the side edges and the front and rear edges of the plate.
  • each of the lateral edges of the plate may be a surface having two longitudinal arris or “corners”.
  • the "corner” of each lateral edge is therefore a longitudinal arris (a line), which has nothing to do with the "corner” which, in a plan view of the plate, is defined between one lateral edge of the plate and the front edge or the rear edge of the plate.
  • each radiusing device comprises a tool unit including a grinding wheel-tool with vertical axis, which is displaceable in a coordinated manner both in the longitudinal horizontal direction of advancement of the plate and in a horizontal direction transverse relative to said longitudinal direction, so that said tool is able to follow with its axis a circular path, with respect to the advancing plate, around a vertical axis located inside the perimeter of the plate.
  • control unit retrieves (also in real time) data relating to the dimensions of the plate and the advancement speed thereof (for example on the basis of signals from sensor means provided in the bilateral machine for detecting passage of the front edge and/or the rear edge of the plate).
  • the control unit is therefore able to control movement of the tool during the radiusing operation on the basis of geometrical and kinematic parameters of the machining operation.
  • each radiusing device comprises:
  • each radiusing device further comprises:
  • said cam track includes two symmetrical sections which are operative respectively during the radiusing operation of a front corner and during the radiusing operation of a rear corner of the plate and said auxiliary actuating means comprise a pair of actuating cylinders interposed between said slide and said platform and adapted to be selectively activated so that one of them is elongated and the other is shortened, or vice versa, for respectively generating the relative motion between each section of the cam track and the cam-follower member.
  • said actuating cylinders are provided with manually adjustable flow regulators for adjusting the machining speed in the radiusing operation.
  • the cam device is eliminated and the movements of the tool unit relative to slide 11 along direction X and along direction Y are operated by two respective actuators controlled by an electronic (CNC) control unit, which provides to coordinating these movements for obtaining the desired path of the axis of tool M relative to the moving plate.
  • CNC electronic
  • the machine according to the invention is able to perform a complete grinding and radiusing machining of a plate, with a processing time lower for example with respect to that which is required by an electronically controlled machining centre adapted to perform these operations, and with optimal machining quality.
  • the integration of a device adapted to perform radiusing of the corners of the plate within a bilateral machine enables saving of the space and resources necessary for providing machines dedicated to performing the radiusing operation only, subsequently to a conventional machining operation carried out by the bilateral machine. Therefore also dead times for transferring the plates from the bilateral machine to the machine performing the radiusing operation are also avoided, so that also productivity of the plant is improved.
  • the present invention is also directed to the machining method which can be carried out by the machine according to the invention.
  • reference L generally designates a glass plate blank, of a quadriangular shape, which is caused to advance horizontally in the machining area A defined between right and left lateral banks D, S constituting the frame of a bilateral machine 1.
  • the two banks D, S have respective support structures each carrying a number of longitudinally aligned tool units U, V, W and Z including respective grinding wheel-tools for machining the two lateral edges LD, LS of the glass plate L, while this is caused to advance through the machining area A by a conveyor system of any known type (not shown) such as a belt conveyor system.
  • each of the tool units U, V, W and Z on each bank of the machine is movable also in a transverse direction Y relative to the longitudinal direction X of advancement of plate L, with the aid of actuator means of known type.
  • the two radiusing devices R configured and controlled for simultaneously performing the radiusing operation of the two head corners C1 of plate L in a first step, and the radiusing operation of the two trailing corners C2 of plate L in a second step.
  • the result of this machining operation is a glass plate L having radiused corners C1', C2', as shown for example in figure 2 .
  • each radiusing device R comprises a grinding wheel-tool M having a vertical axis M1.
  • tool M while the plate L is advancing in direction X, tool M (see again figure 3 ) is moved relative to plate L both in direction X and direction Y with movements which are coordinated in such a way that the axis M1 of the tool M is moved, relative to the moving plate L, so that it follows a circular path R1 having a radius RR around a vertical axis C lying inside the perimeter of the plate L (see figure 3 ).
  • a single radiusing device is provided only on one of the two banks of a machine. Also, it is not essential that the two radiusing devices are operated simultaneously, since it is absolutely possible that a radiused profile is formed only on one of the corners of the plate or only on some of the corners of the plate. Furthermore, it is advantageous that the radiusing devices are operated while the plate is moving, in order to obtain a minimum cycle time, but the possibility is not excluded that they are operated with the plate being in a stationary position.
  • the tool unit carrying the tool M is movable along directions X, Y with the aid of respective actuator devices (such as electric or pneumatic actuators) controlled by an electronic control unit (CNC).
  • the electronic unit can be programmed for performing an interpolation of the movements along the X and Y directions so as to obtain the desired path of the tool M relative to plate L, while the plate is moving. This can be done both for machining the front corners of the plate, i.e. the corners located on the front side of the plate, with reference to the direction of advancement through the machine, and for performing the radiusing operation of the trailing corners of the plate.
  • the electronic unit can indeed be programmed for setting the desired value of the ray of the rounded profile to be formed at a given corner of the plate. It is further possible to vary the control parameters so as to take into account the progressive wear of the grinding wheel-tool, by reducing the radial distance RR ( figure 3 ) depending upon the reduction of the ray of the grinding wheel M. Furthermore, the electronic control (CNC) unit can also enable the speed of the radiusing operation to be adjusted.
  • each of the two radiusing devices R provided on the two banks of the machine includes a fixed supporting bench 10 on which the structure of a slide 11 is slidably mounted along direction X.
  • the slide 11 extends transversally with respect to the supporting bench 10 both on its side facing towards the machining area A through which the plate L is moved, and on its opposite outer side.
  • the front of each slide 11 carries two abutments 13, 12 for engaging the plate (that are visible in figure 4 ) which are respectively for cooperation with the front edge LF and with the rear edge LP of the plate, in a way which will become clear in the following.
  • These abutments 12, 13 are movable vertically, with the aid of actuators of any type, such as pneumatic cylinders (not shown), between a raised operative position and a lowered inoperative position, in which they do not interfere with the passing plate.
  • said cam track T includes two symmetrical sections t1, t2 which are active respectively during the radiusing operation of a front corner C1 and during the radiusing operation of a rear corner C2 of the plate.
  • the above mentioned auxiliary actuator means comprise a pair of actuating cylinders Q1, Q2 interposed between the above mentioned slide 11 and the above mentioned platform 14 and adapted to be activated selectively so that one is shortened and the other is extended, or vice versa, for respectively generating the relative movement of the cam-follower member P on section t1 and on section t2 of the cam track T.
  • Figure 6 shows the initial step of the radiusing operation of a front corner C1 of the plate.
  • the auxiliary actuating means Q1 and Q2 are activated so that one is extended and the other one is shortened in order to generate the relative movement between the section t1 of the cam track T and the cam-follower member P ( figure 7 ) which generates the desired movement of tool M relative to plate L.
  • the slide 11 is brought back to a position more upstream, by activating an actuating device (not shown in the drawings) such as a pneumatic cylinder, which is provided on structure 10 and is connected to slide 11.
  • an actuating device such as a pneumatic cylinder, which is provided on structure 10 and is connected to slide 11.
  • the abutments 12, 13 are in their lowered positions, so as to enable plate L to pass above them.
  • slide 11 is moved again forwardly in the X direction by activating the above mentioned actuating device, so as to follow the plate until contact of the abutment 12 (which in the meantime has been raised) of each radiusing device R against the rear edge LP of the plate (see figure 9 ).
  • auxiliary actuators Q1, Q2 are activated so that one of them is shortened and the other one is extended, while slide 11 continues to be positively pushed by the actuator associated thereto so that it moves together with plate L.
  • Activation of the two auxiliary actuators Q1, Q2 causes relative movement between the cam track T and the cam-follower member P, with engagement of the latter on section t1 of the cam track T ( figure 7 ).
  • the tool M is moved relative to the moving plate thus performing the desired curved path.
  • the actuating cylinders can be provided with manually adjustable flow regulators for adjusting the speed of the machining operation.

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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)
EP15186794.2A 2014-10-20 2015-09-25 Maschine für die beidseitige bearbeitung von kanten von platten mit integrierten geräten zum verrunden der ecken Active EP3012066B1 (de)

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Application Number Priority Date Filing Date Title
ITTO20140849 2014-10-20

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EP3012066A1 true EP3012066A1 (de) 2016-04-27
EP3012066B1 EP3012066B1 (de) 2019-11-27

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20164621A1 (it) * 2016-06-23 2017-12-23 Ancora Spa Impianto e metodo di calibratura e/o squadratura di elementi squadrabili, quali manufatti ceramici o pietre naturali e simili
CN108747683A (zh) * 2018-07-04 2018-11-06 合肥科塑信息科技有限公司 一种光学玻璃自动磨边设备
EP3581331A1 (de) 2018-06-13 2019-12-18 Phup Remszklo s.c. Set aus platten zum schleifen der kanten von glasplatten
CN112692695A (zh) * 2020-12-24 2021-04-23 芜湖恒坤汽车部件有限公司 铜排修饰加工用多面抛光机
CN114986320A (zh) * 2022-08-03 2022-09-02 苏州科思拓机械科技有限公司 一种用于光伏玻璃的直边磨边机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4049787B1 (de) 2021-02-25 2023-12-27 Biesse S.p.A. Maschine und verfahren zum bearbeiten von seitenkanten von glasplatten, steinplatten oder kunststoffplatten

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3010724A1 (de) * 1980-03-20 1981-09-24 Franz Torwegge Maschinenfabrik GmbH & Co KG, 4972 Löhne Vorrichtung zum schleifen der ecken von werkstuecken
FR2490532A1 (fr) * 1980-09-20 1982-03-26 Benteler Werke Ag Dispositif destine a arrondir les coins de plaques de verre
GB2261433A (en) * 1991-07-09 1993-05-19 Kabushikigaisya Fukuyamatrkkou Apparatus for cutting corners of plate-like materials
EP1422024A1 (de) * 2002-11-20 2004-05-26 BIESSE S.p.A. Vorrichtung und Verfahren zur Kontrolle der Betriebsstellung einer Polierscheibe in einer Maschine zum Polieren von Glasplatten, Marmorplatten und steinartigen oder ähnlichen Materialen
EP1779970A1 (de) * 2005-10-27 2007-05-02 BIESSE S.p.A. Numerisch gesteuerte Arbeitsanlage zum Bearbeitung Platten aus Glas, Stein, Marmor und dergleichen, mit zwei oder mehr Bearbeitungseinheiten
EP2246151A1 (de) * 2009-04-29 2010-11-03 Bottero S.p.A. Schleifanordnung zur Abschrägung von Kanten von Glasplatten

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003341828A (ja) * 2002-05-27 2003-12-03 Shiraitekku:Kk 供給装置
JP4406752B2 (ja) * 2005-05-27 2010-02-03 日本電気硝子株式会社 ガラス基板の端面加工装置及び端面加工方法
JP5162640B2 (ja) * 2010-10-06 2013-03-13 川崎重工業株式会社 板ガラスの搬送装置とそれを備えた面取り装置
CN102198618A (zh) * 2011-05-10 2011-09-28 富阳德迈机械有限公司 一种异形双边玻璃磨边机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3010724A1 (de) * 1980-03-20 1981-09-24 Franz Torwegge Maschinenfabrik GmbH & Co KG, 4972 Löhne Vorrichtung zum schleifen der ecken von werkstuecken
FR2490532A1 (fr) * 1980-09-20 1982-03-26 Benteler Werke Ag Dispositif destine a arrondir les coins de plaques de verre
GB2261433A (en) * 1991-07-09 1993-05-19 Kabushikigaisya Fukuyamatrkkou Apparatus for cutting corners of plate-like materials
EP1422024A1 (de) * 2002-11-20 2004-05-26 BIESSE S.p.A. Vorrichtung und Verfahren zur Kontrolle der Betriebsstellung einer Polierscheibe in einer Maschine zum Polieren von Glasplatten, Marmorplatten und steinartigen oder ähnlichen Materialen
EP1779970A1 (de) * 2005-10-27 2007-05-02 BIESSE S.p.A. Numerisch gesteuerte Arbeitsanlage zum Bearbeitung Platten aus Glas, Stein, Marmor und dergleichen, mit zwei oder mehr Bearbeitungseinheiten
EP2246151A1 (de) * 2009-04-29 2010-11-03 Bottero S.p.A. Schleifanordnung zur Abschrägung von Kanten von Glasplatten
EP2246151B1 (de) 2009-04-29 2013-04-17 Bottero S.p.A. Schleifanordnung zur Abschrägung von Ecken von Glasplatten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
OSAI S.P.A., SERIES CNC PROGRAMMING MANUAL PUBLICATION, July 2001 (2001-07-01)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20164621A1 (it) * 2016-06-23 2017-12-23 Ancora Spa Impianto e metodo di calibratura e/o squadratura di elementi squadrabili, quali manufatti ceramici o pietre naturali e simili
WO2017221212A1 (en) * 2016-06-23 2017-12-28 Ancora S.P.A. System and method for calibrating and/or squaring squareable elements, such as ceramic or natural stone items and the like
EP3581331A1 (de) 2018-06-13 2019-12-18 Phup Remszklo s.c. Set aus platten zum schleifen der kanten von glasplatten
CN108747683A (zh) * 2018-07-04 2018-11-06 合肥科塑信息科技有限公司 一种光学玻璃自动磨边设备
CN112692695A (zh) * 2020-12-24 2021-04-23 芜湖恒坤汽车部件有限公司 铜排修饰加工用多面抛光机
CN114986320A (zh) * 2022-08-03 2022-09-02 苏州科思拓机械科技有限公司 一种用于光伏玻璃的直边磨边机

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