EP3170622A1 - Maschine zum bearbeiten von platten in einer im wesentlichen vertikalen position, mit einem schalenschleifwerkzeug, das rund um eine orthogonalachse ausrichtbar ist - Google Patents

Maschine zum bearbeiten von platten in einer im wesentlichen vertikalen position, mit einem schalenschleifwerkzeug, das rund um eine orthogonalachse ausrichtbar ist Download PDF

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Publication number
EP3170622A1
EP3170622A1 EP16196823.5A EP16196823A EP3170622A1 EP 3170622 A1 EP3170622 A1 EP 3170622A1 EP 16196823 A EP16196823 A EP 16196823A EP 3170622 A1 EP3170622 A1 EP 3170622A1
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EP
European Patent Office
Prior art keywords
plate
machining
grinding wheel
tool
axis
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Granted
Application number
EP16196823.5A
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English (en)
French (fr)
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EP3170622B1 (de
Inventor
Mr. Matteo TRAINI
Mr. Marco BELLI
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Biesse SpA
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Biesse SpA
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Publication of EP3170622A1 publication Critical patent/EP3170622A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation

Definitions

  • the present invention relates to a machine for machining the peripheral edge of plates, in particular plates of glass or plates of natural or synthetic stone material and plates of plastic material, in which the plates are to be machined in a substantially vertical position, said machine being of the type comprising:
  • Machines of the above indicated type have been manufactured and marketed since long by the Applicant company.
  • a machine of this type is for example disclosed in document EP 2 719 501 A1 of the same Applicant.
  • machines of this type have been used for performing drilling operations on glass plates.
  • they usually have a processing station comprising first and second machining heads movable along said substantially vertical second Y direction, and arranged on opposite sides with respect to the general plane of the plate.
  • the two machining heads have motorized spindles provided with drilling tools adapted to engage the glass plate from opposite sides, for performing a drilling operation through the plate.
  • Machines of the above indicated type have been used also for machining the peripheral edge of glass plates, in order to remove the sharp edge originated by a previous cutting operation.
  • the motorized spindle of the machining head is coupled with a tangential-type grinding tool, having a cylindrical lateral wall which enters in contact with the edge of the plate for performing the grinding operation.
  • a plate of a quadrangular shape is positioned on the machine, the front edge and the rear edge thereof (with reference to the advancing direction of the plate in the machine) are machined while holding the plate in a stationary position along said first X direction and by moving the machining head, or each machining head, along said substantially vertical second Y direction.
  • the upper and lower edges of the plate are instead machined by moving the plate along said first X direction and holding the machining head, or each machining head, in a stationary position along said substantially vertical second Y direction.
  • a machine of this type is disclosed in EP 2 039 464 A1 .
  • machines of this type were further developed by providing automatic change of the tool of one or both of the machining heads, in order to perform different types of machining operations, such as drilling operations on the plate, or grinding and polishing operations on the edges of the plate, or milling operations, by which a portion of the plate is cut and removed in order to form an aperture in the plate.
  • machining operations such as drilling operations on the plate, or grinding and polishing operations on the edges of the plate, or milling operations, by which a portion of the plate is cut and removed in order to form an aperture in the plate.
  • the main drawback which is encountered in using these machines for operations for machining the peripheral edge of the plate lies in that it is impossible to obtain a high quality surface finishing on the plate edge.
  • the tangential-type grinding tools which are used for this purpose have a metal cylindrical body whose active lateral surface is made of an electrically-deposited hard metal and is subjected to a deformation of its profile following wear due to the machining operations.
  • the deformation of the profile of the active surface of the tangential grinding tool gives rise to the formation of micro-grooves on the surface of the machined plate edge.
  • the object of the present invention is to overcome the drawbacks of the known machines and to provide in particular a machine of the type indicated at the beginning of the present description which is able to perform machining of the peripheral edge of a plate with a high finishing quality, by extremely simple means and with a high production efficiency.
  • the invention provides a machine having the features which have been indicated at the beginning of the present description and further characterized in that the spindle carried by said at least one machining head which is movable along the second Y direction is coupled with a grinding tool consisting of a cup grinding wheel having an axis of rotation parallel to the plane of the plate, and in that said cup grinding wheel is orientable about an axis perpendicular to the plane of the plate, so that said cup grinding wheel is adapted to be arranged selectively at least in a first position, in which its axis of rotation is parallel to said second Y direction, and in a second position, in which its axis of rotation is parallel to said first X direction, whereby said cup grinding wheel is adapted to perform the machining of the upper edge or the lower edge of the plate when the cup grinding wheel is in said first position, with its axis of rotation parallel to said second Y direction, by means of a movement of the plate along said first X direction, with said at least one machining head being
  • the machining of the peripheral edge of the plate is carried out by one or more cup grinding wheels, having a substantially planar annular front active surface, which is not subjected to a change of its profile due to wear. Wear of the active surface of the cup grinding wheel merely implies a repositioning of the cup grinding wheel with respect to the plate edge to be machined, which can be obtained by the electronic controller of the machine, which is able of controlling the position along the Y direction of the machining head and the position along the X direction of the plate, in order to provide proper engagement between the active surface of the cup grinding wheel and the edge of the plate.
  • the provision on the machining head of at least one tool in the form of a cup grinding wheel, which can be oriented around an axis orthogonal to the general plane of the plate, enables the various sides of the plate to be machined in sequence with minimum dead times between machining of one side of the plate and that of an adjacent side, with a resulting high productivity of the machine.
  • the cup grinding wheel is mounted on a shaft which is rotatably supported within a tool-carrying body.
  • the latter is mounted on a supporting structure which on its turn is carried by said machining head so as to be orientable around an axis orthogonal to the general plane of the plate.
  • said motorized spindle has its axis substantially coincident with said axis orthogonal to the general plane of the plate, around which the supporting structure of the tool-carrying body can be oriented.
  • said tool-carrying body carries a 90-degrees mechanical transmission for connecting the motorized spindle to the shaft of said cup grinding wheel.
  • said tool-carrying body forms part of a separate tool-carrying unit, removably connected to said orientable supporting structure.
  • the 90-degrees mechanical transmission carried by said tool-carrying body has an input shaft which is removably coupled with said motorized spindle.
  • said tool-carrying body is rigidly connected to said orientable supporting structure and the 90-degrees mechanical transmission carried by said tool-carrying body has an input shaft permanently coupled with said motorized spindle.
  • said machining head carrying the cup grinding wheel can be a dedicated machining head, which is provided in addition to one or more machining heads of the machine on which further machining tools can be coupled, for performing further machining operations on the plate.
  • the machining head to which this tool-carrying unit is associated can be the machining head of a conventional machine, on which further machining tools can be coupled, for performing further machining operations on the plate.
  • the tool-carrying body on which the shaft of the cup grinding wheel is rotatably mounted also carries a guiding carriage for guiding the plate during the machining operation.
  • This guiding carriage has at least one or more primary guiding wheels which are freely rotatable around respective axes parallel to the axis of the cup grinding wheel, for engagement on one face of the plate and at least one or more secondary guiding wheels which are freely rotatable around axes parallel to the axis of the cup grinding wheel, for engagement on the opposite face of the plate.
  • These primary and secondary guiding wheels are carried by respective support pins which are displaceable relative to one another in a direction orthogonal to the plane of the plate, to enable the plate to be clamped and guided during machining thereof between said primary and secondary wheels, so as to prevent or reduce vibrations of the plate during machining.
  • machine 1 comprises a fixed supporting structure 2 defining a conveying line extending along a longitudinal X direction, along which the plates to be machined are caused to advance while being held in a almost vertical plane.
  • the machine comprises two longitudinal arrays of motorized rollers 3,4 extending along the longitudinal X direction, upstream and downstream of a machining central station W.
  • the plates to be machined come from the left-hand end (with reference to the drawings) of the machine and are caused to rest with their lower edge on the roller line 3. As indicated, the plates are slightly inclined with respect to the vertical plane, so that they rest with their rear face (i.e. the face opposite to that facing towards the viewer in the figures) on arrays of wheels R which are freely rotatable around vertical axes, these arrays being carried by longitudinal bars forming part of a fixed frame 5.
  • a similar frame 6, with wheels R for supporting the rear face of the machined plates, is arranged downstream of the processing station W (with reference to the X direction of advancement of the plates).
  • rollers 3, 4 as a conveying device for conveying the plate in the X direction conveying belts or automated clamp-like movable members can be used.
  • advancement of the plate L in the X direction is further obtained by means of a plurality of suction-cup carrying carriages C, provided with suction-cup members S which can be activated by vacuum and are movable from a rearwardly displaced position to a forwardly advanced position for engaging the rear face of plate L (i.e. the face opposite to that facing towards the viewer in the figures).
  • suction-cup carrying carriages provided in the examples described herein is not an essential feature of the present invention.
  • the conveying device for causing the plates to advance along the X direction can simply comprise the motorized rollers described above and/or alternative devices, such as conveying belts and automated movable clamp-like members.
  • each carriage C is independently slidably mounted on a longitudinal guide (not shown in the drawings) of the base fixed structure 2, so as to be movable along the X direction independently from the other suction-cup carrying carriages.
  • each carriage C is provided with motor means which drive movement thereof along the X direction, such as in the form of a motorized sprocket engaging a rack. Also these details of construction are not shown herein since they are known and do not fall, taken alone, within the scope of the invention.
  • suction-cup gripping members S the means for driving movement of these suction-cup gripping members along the direction orthogonal to the glass plate, between a rearwardly displaced position and a forwardly advanced position, and the means for communicating vacuum to the suction-cup gripping members are not shown herein, since they may be of any type known per se.
  • the general plane of the glass plate L is ensured by the suction-cup members S of the suction-cup carrying carriages C.
  • the precise position of plate L along the X direction is also ensured by carriages C, whose motor means are controlled in synchronism by an electronic control unit E which is associated with the machine ( figure 1 ).
  • the processing station W comprises a fixed pillar structure 7 on which two machining heads H1, H2 are movably mounted parallel to a substantially vertical Y direction.
  • the movement along the Y direction of each head is driven by a respective electric motor (not shown).
  • the heads H1 and H2 each carry a motorized spindle having an axis parallel to a third direction Z ( figure 1 ) orthogonal to directions X and Y.
  • the spindle is also provided, in a way known per se, with the possibility of moving along the Z direction.
  • the spindle of each head can be selectively coupled with a machining tool (such as a grinding tool or a drilling tool or a milling tool or a combined tool).
  • a tool magazine carried by a rack which is horizontally movable along the X direction with respect to structure 7 for enabling an automatic change of the tool carried by each machining head H1, H2, according to a technique known per se.
  • these details are shown herein purely by way of example, while the general configuration of the machine can be made in any known way.
  • the two heads H1, H2 are arranged on opposite sides with respect to the general plane of the plate to be machined so that for example when on the spindles of the heads H1, H2 drilling tools are mounted, they can engage the plate L coaxially from opposite sides in order to properly perform a drilling operation, according to a technique known per se.
  • the machining operations of the longitudinal edges of the plate are performed by moving the carriages C along the X direction, with a simultaneous control of the position along the Y direction of the heads H1, H2 (which simultaneously perform the grinding operation on the upper and lower edges of the plate).
  • the machining operation on the vertical edges of the plate is carried out by stopping the carriages C and by moving one of the heads H1, H2 along the Y direction.
  • on the spindles of heads H1, H2 there are mounted grinding tools.
  • the electric motors which drive movement of the machining heads H1, H2 along the Y direction, and the movement of the suction-cup carrying carriages C along the X direction are controlled by the electronic control unit E, according to any predetermined programme.
  • Figure 2-6 relate to one embodiment of the machine according to the invention.
  • one or both of the machining heads H1, H2 of the machine are provided with a grinding tool M in the form of a cup grinding wheel, for machining the edges of a glass plate L positioned in machine 1.
  • the cup grinding wheel M (or each cup grinding wheel) can be associated with a respective dedicated machining head (not shown in figure 1 ) provided in the machine in addition to the machining heads H1, H2 and also movable at the processing station W along the vertical Y direction.
  • the cup grinding wheel M, or each cup grinding wheel M, provided at the processing station W is of any type known to the experts in the field.
  • the cup grinding wheel M has a cup shaped metal body having an annular front surface M1 which is substantially planar and coated with electrically-deposited fragments of hard material. Any other material and configuration of the cup grinding wheel which are adapted for the purposes indicated herein can naturally be also used.
  • the cup grinding wheel M is carried by a tool-carrying body provided on a supporting structure T which is mounted on the respective machining head (such as machining head H1) so as to be orientable around a horizontal axis 9 orthogonal to the general plane of the plate in the machine (i.e. an axis parallel to direction Z shown in figure 1 ).
  • the orientable supporting structure T can be rotated around the axis 9 with respect to the structure of the head (such as H1) by means of an electric motor (not shown) carried by the machining head (such as H1) and controlled by the electronic control unit E of the machine.
  • the orientable supporting structure T rotatably supports, around said axis 9, the body 12 of a spindle, which is driven in rotation by means of an electric motor (not shown) which is also carried by the orientable structure T.
  • the motorized spindle 12 has one end portion projecting outwardly from the orientable supporting structure T and having at its end face, in a way known per se, a conical seat for removable coupling of the tool carrying body.
  • the tool is carried by body A1 of a tool-carrying unit A.
  • body A1 within body A1 there is rotatably mounted an input shaft 13, diagrammatically shown in figure 8, which is connected in rotation, by means of a mechanical 90-degrees transmission, such as by means of a pair of conical sprockets 13A, 14A (also shown diagrammatically in figure 6 ) with an output shaft 14, which also is rotatably mounted within body A1 around its axis 15 and having a portion projecting outwardly from body A1 and carrying the cup-grinding wheel M.
  • the input shaft 13 has a conical end portion W1, outside body A1, which is removably coupled within the conical seat on the end surface of the spindle (see in particular figure 2 ) by quick coupling means of any known type.
  • the axis 15 of the cup grinding wheel M is arranged at 90 degrees with respect to axis 9 of spindle 12, around which the supporting structure is orientable. As a result of this, the axis 15 of the cup grinding wheel M is arranged parallel to the plane of the plate L.
  • the structure T carrying this spindle 12 is also provided with the possibility of moving along the axis Z with respect to the machining head by which it is supported, this movement along the Z direction being also controlled by an electric motor (not shown) carried by the head and controlled by unit E.
  • the coupling of the conical portion W1 within the cooperating conical seat on the end surface of the spindle 12 is used both for connecting shaft 13, and hence grinding wheel M, in rotation with the spindle 12, and also for supporting the entire tool-carrying unit A on the orientable supporting structure T.
  • the latter is further connected rigidly to the orientable structure by a rigid tubular arm B, which projects in a cantilever fashion from the end surface of the structure T parallel to the spindle 12 and which is adapted to engage with its free end a bush b projecting from a front surface 20 (see figure 2 ) of body A1.
  • the unit A In the coupled condition of the tool-carrying unit A on spindle 12, the unit A is therefore supported by the orientable structure T through the spindle 12. At the same time, the grinding wheel M of unit A is connected in rotation with the spindle 12 and coupling between the tubular arm B and the bush b prevents rotation of unit A with respect to the spindle.
  • the conical portion W1 of unit A has, in a way known per se, a base circumferential groove 9A which is used for the engagement of a gripping member adapted for gripping unit A and provided at each of the tool-receiving locations of the tool magazine.
  • a gripping member adapted for gripping unit A and provided at each of the tool-receiving locations of the tool magazine.
  • the electronic control unit E drives the movement of the head (such as H1) along the Y direction until the axis of the spindle 12 is brought to be coincident with the axis of a conical portion W1 of the unit A arranged in the magazine, and subsequently drives a movement along the Z direction of the spindle 12 and the tubular arm B in order to obtain coupling of the conical portion W1 within the conical seat in the spindle 12 and the coupling of the end of the tubular arm B on bush b.
  • the cup grinding wheel M can be arranged along different operative positions, with axis 15 of the cup grinding wheel either parallel to the vertical Y direction or parallel to the X direction of the machine.
  • the cup grinding wheel can have its active surface M1 facing upwardly, as shown in figure 2 , so as to be adapted to machine the lower edge of the glass plate L, or it can have its active surface M1 facing downwardly (see the upper part of figure 4 ) so as to be adapted to machining of the upper edge of the glass plate L.
  • the cup grinding wheel M When instead the cup grinding wheel M has its axis 15 oriented parallel to the X direction of the machine it can have its active surface M oriented forwardly or rearwardly (with respect to the direction of advancement of plate L in the machine), so as to be adapted to machine the rear edge of plate L ( figure 3 ) or the front edge of the plate (right-hand part of figure 4 ), again with reference to the direction of advancement of the plate in the machine.
  • the tool-carrying unit A is provided with a guiding carriage which, in the illustrated example, comprises two pairs of primary and secondary wheels R1, R2 facing each other, which are freely rotatably mounted on respective pins S1, S2 which are oriented parallel to axis 15 of the grinding wheel M.
  • the wheels R1, R2 are adapted to engage the two opposite faces of the plate L.
  • the pins S1 of the primary wheels R1 are rigidly connected to body A1 of the tool-carrying unit A, whereas each of the pins S2 is carried independently by the stem 16 of a respective fluid cylinder C1 mounted on body A1 of the tool-carrying unit.
  • each secondary wheel R2 can be moved by means of the respective fluid cylinder C1 for bring it in contact with the front face of the plate.
  • the two pairs of wheels R1, R2 are adapted to grip and guide therebetween the plate during the machining operation, thus preventing or at least reducing any vibrations of the plate.
  • the tool-carrying unit A When it is necessary to perform a machining operation with a high quality of surface finishing on the peripheral edge of the plate, the tool-carrying unit A is coupled with the orientable supporting structure T, in the way which has been illustrated above.
  • the orientable support T is positioned as shown in figure 2 , so as to hold the cup grinding wheel M with its axis 15 oriented parallel to the Y direction and its active front surface M1 facing upwardly.
  • the machining head carrying the orientable support T is held in a stationary position along the vertical Y direction and the plate L is moved along the X direction.
  • the motorized spindle 12 is put in rotation, for driving rotation of the cup grinding wheel M through the 90-degrees transmission carried by the tool-carrying body of the tool-carrying unit A.
  • the cup grinding wheel M thus performs a machining operation with a high quality of surface finishing on the lower edge of the plate ( figure 2 ).
  • the orientable supporting structure T is rotated so as to arrange the cup grinding wheel M with its axis 15 oriented parallel to the X direction and its active front surface M1 facing forwardly, as shown in figure 3 .
  • the motorized spindle 12 is activated for putting the cup grinding wheel M in rotation while the machining head which carries the orientable support T is moved along the Y direction, with the plate L held by carriage C in a stationary position along the X direction.
  • the machine operations of the upper edge and the front edge of the plate are carried out in a similar way by orienting the cup grinding wheel M with its axis 15 directed parallel to the Y direction and with its active surface M1 facing downwardly, or by orienting the axis 15 parallel to the X direction, with its active surface M1 facing rearwardly, with respect to the advancement direction of the plate in the machine.
  • the glass plate L slides between the two pairs of guiding wheels R1, R2, which prevent or at least reduce the vibrations of the plate during the machining operation.
  • the two pairs of guiding wheels R1, R2 roll along the two faces of the plate, thus preventing or reducing the vibrations of the plate.
  • cup grinding wheel M is permanently connected to the respective shaft 14. In this case, when the cup grinding wheel M is excessively worn, it is necessary to replace the entire tool-carrying unit A. In any case, it is possible to provide for the cup grinding wheel M to be removably connected to the respective shaft 14.
  • this unit is integral with the orientable support T or anyhow rigidly connected thereto so that it is only the cup grinding wheel M which is removably coupled with the respective shaft 14.
  • this arrangement can be provided on each of the two machining heads H1, H2 of the machine, or only one of them, or on a dedicated machine head, which is additional with respect to the machining heads H1, H2 with which the machine is provided in order to perform a number of additional machining operations.
  • each cup grinding wheel with the respective shaft, or of each tool-carrying unit A with the respective supporting structure can naturally be made in any known manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Adjustment And Processing Of Grains (AREA)
EP16196823.5A 2015-11-18 2016-11-02 Maschine zum bearbeiten von platten in einer im wesentlichen vertikalen position, mit einem schalenschleifwerkzeug, das rund um eine orthogonalachse ausrichtbar ist Active EP3170622B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUB2015A005709A ITUB20155709A1 (it) 2015-11-18 2015-11-18 Macchina per lavorare lastre in posizione sostanzialmente verticale, con utensile di molatura a tazza che e' orientabile intorno ad un asse ortogonale al piano della lastra

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EP3170622A1 true EP3170622A1 (de) 2017-05-24
EP3170622B1 EP3170622B1 (de) 2018-01-31

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN107263233A (zh) * 2017-08-14 2017-10-20 海盐孚邦机械有限公司 一种柱塞套生产专用端面磨平机
EP3628442A1 (de) * 2018-09-27 2020-04-01 Donatoni Macchine S.R.L. Multitool-aggregateinheit zum polieren von platten aus steinmaterial oder synthetischem material und eine mit dieser einheit ausgestattete poliermaschine
IT201900020424A1 (it) 2019-11-05 2021-05-05 Biesse Spa Centro di lavoro a controllo elettronico, per la lavorazione di lastre di vetro, lastre di materiale lapideo, o lastre di materiale sintetico
IT202200006089A1 (it) * 2022-03-29 2023-09-29 Forel S P A Unipersonale Apparato e procedimento per la lavorazione di lastre
IT202200015081A1 (it) * 2022-07-19 2024-01-19 Forel S P A Unipersonale Procedimento e apparato per trattenere ed eseguire lavorazioni su una lastra
IT202200017652A1 (it) * 2022-08-25 2024-02-25 Forel S P A Unipersonale Unità e relativo procedimento per trattenere una lastra

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200006992A1 (it) * 2022-04-07 2023-10-07 Biesse Spa Centro di lavoro a controllo numerico, per la lavorazione di lastre di vetro o lastre di materiale lapideo, naturale o sintetico, con testa di lavoro avente una unità ausiliaria per il sostegno della lastra, e procedimento di lavorazione

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EP3628442A1 (de) * 2018-09-27 2020-04-01 Donatoni Macchine S.R.L. Multitool-aggregateinheit zum polieren von platten aus steinmaterial oder synthetischem material und eine mit dieser einheit ausgestattete poliermaschine
IT201900020424A1 (it) 2019-11-05 2021-05-05 Biesse Spa Centro di lavoro a controllo elettronico, per la lavorazione di lastre di vetro, lastre di materiale lapideo, o lastre di materiale sintetico
EP3819080A1 (de) 2019-11-05 2021-05-12 Biesse S.p.A. Elektronisch gesteuerte arbeitsstation zur automatisierten verarbeitung von glasplatten oder platten aus stein oder synthetischem material
IT202200006089A1 (it) * 2022-03-29 2023-09-29 Forel S P A Unipersonale Apparato e procedimento per la lavorazione di lastre
WO2023187844A1 (en) * 2022-03-29 2023-10-05 Forel S.p.a. Apparatus and method for working sheets
IT202200015081A1 (it) * 2022-07-19 2024-01-19 Forel S P A Unipersonale Procedimento e apparato per trattenere ed eseguire lavorazioni su una lastra
WO2024018495A1 (en) * 2022-07-19 2024-01-25 Forel S.p.a. Method and apparatus for holding and performing work on a sheet
IT202200017652A1 (it) * 2022-08-25 2024-02-25 Forel S P A Unipersonale Unità e relativo procedimento per trattenere una lastra
WO2024042559A1 (en) * 2022-08-25 2024-02-29 Forel S.p.a. Device and related method for holding a slab

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