Classifications

• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
  • E06B3/677—Evacuating or filling the gap between the panes ; Equilibration of inside and outside pressure; Preventing condensation in the gap between the panes; Cleaning the gap between the panes
  • E06B3/6775—Evacuating or filling the gap during assembly
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
  • E06B3/673—Assembling the units
  • E06B3/67365—Transporting or handling panes, spacer frames or units during assembly
  • E06B3/67382—Transport of panes or units without touching the bottom edge
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
  • E06B3/673—Assembling the units
  • E06B3/67365—Transporting or handling panes, spacer frames or units during assembly
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
  • E06B3/673—Assembling the units
  • E06B3/67365—Transporting or handling panes, spacer frames or units during assembly
  • E06B3/67386—Presses; Clamping means holding the panes during assembly

Definitions

• the present invention relates to a method for forming an insulated glass sheet.
• the present invention relates to a method for forming an insulated glass sheet comprising at least three sheets of glass facing one another, of which two are side sheets and one is intermediate, spaced apart from one another by internal peripheral frames delimiting, together with the respective sheets, two sealed chambers containing a heavy inert gas .
• a three sheet insulated glass sheet of the type described above is made by initially forming a single chamber insulated glass sheet, i.e. by arranging a pair of glass sheets on opposite sides of an internal spacing frame so as to form a chamber for the inert gas and filling the chamber itself with inert gas before forcing the sheets against each other making them integral with the internal frame .
• a further glass sheet is taken to position facing one of the two glass sheets of the single chamber insulated glass sheet, after which a second internal peripheral frame is associated to the further sheet forming a second chamber, in which the inert gas is introduced before making the glass sheets integral with the second internal frame.
• a second internal peripheral frame is associated to the further sheet forming a second chamber, in which the inert gas is introduced before making the glass sheets integral with the second internal frame.
• double chamber glass sheets are long, complex and costly, and does not ensure constant product quality, above all when the insulated glass sheets are made "vertically", i.e. by arranging the glass sheets on their edge during the entire forming process.
• the single chamber insulated glass is kept suspended by suction caps which are coupled to one of the glass sheets.
• the single chamber glass is therefore overhangingly supported being one of the sheets coupled to the suction caps and the other withheld only by the coupling obtained by means of the internal frame.
• a method for forming an insulated glass is provided as claimed in claim 1.
• the present invention further relates to a machine for forming an insulated glass sheet.
• a machine for forming an insulated glass is provided as claimed in claim 9.
• FIGS. 1 to 14 diagrammatically show, substantially in blocks, a machine for forming an insulated glass sheet according to the present invention arranged in different functional conditions;
• FIGS. 15 and 16 illustrate a variant of a detail of the figures from 1 to 14.
• numeral 1 indicates, as a whole, a machine for forming an insulated glass sheet (figure 14) comprising two side glass sheets 3 and 4, a central glass sheet 5 and an internal spacing frame 6 interposed between each side glass sheet 3,4 and the central glass sheet 5.
• the machine 1 comprises a base 8 and a conveying assembly 9 for advancing the glass sheets 3-5 in a longitudinal direction 10 between an inlet station 11 of the sheets 3-5 and an outlet station 12 of the insulated glass sheet 2.
• the conveying assembly 9 comprises a frame 14 of its own coupled to the base 8 of the machine 1 by means of a guide and slide assembly 15 for sliding in opposite senses in a horizontal transversal direction 16 orthogonal to the longitudinal direction 10 under the bias of its own linear actuator 18.
• the conveying assembly 9 further comprises three motorized belt conveyors, indicated by numerals 19, 20 and 21, arranged side-by-side and corresponding belts 19a, 20a and 21a wound as a loop about respective diverter rollers 22 and having different widths.
• the diverter rollers 22 have the same external diameter, are rotational about respective axes horizontal and parallel to each other and to the transversal direction 16, and divide the respective belts 19a, 20a and 21a into an horizontal upper delivery branch 19b, 20b and 21b, parallel to the longitudinal direction 10, and a lower return branch.
• the conveyor 21 is coupled to the frame 14 in vertically fixed position, while a respective lifting actuator device 23, known in itself and not described in detail, is interposed between each of the conveyors 19 and 20 and the frame 14 itself.
• Each device 23 is adapted to vertically displace the respective conveyor 19,20, orthogonally with respect to directions 10 and 16, and in particular to displace the delivery branch 19b, 20b between a raised position (figures 3 and 11) and a lowered position (figures 1 and 12) , in which the delivery branches 19b, 20b and 21b are co-planar and lay on a horizontal plane P parallel to directions 10 and 16.
• the machine 1 further comprises a side reference and supporting assembly 25 of the side glass sheets arranged essentially over the conveying assembly 9 and, in turn, comprising a front supporting and actuating device 26 and a rear supporting device 27 arranged reciprocally facing .
• the supporting devices 26 and 27 comprise respective withholding devices of the glass sheets 3 and 4, conveniently of the suction cap type, known in themselves and not described in detail, each adapted to withhold a respective glass sheet arranged on its edge in position orthogonal to the transversal direction 16 and parallel to the longitudinal direction 10.
• At least the device 26 or, as in the present solution, both the devices 26 and 27 are coupled to the base 8 in sliding manner to slide in opposite directions parallel to itself and one respect to the other in the transversal direction 16 under the bias of respectively- independent actuators indicated by numerals 28 and 29.
• Each supporting device 26 and 27 then comprises a plurality of respective dispensing nozzles 30 adapted to generate respective inert gas flows over the conveyors 19,20 and 21.
• the nozzles 30, which in the specific case are defined by conduits, are mutually aligned in the longitudinal direction 10, are arranged in adjacent position parallel to plane P and to the delivery branches 19b, 20b and 21b, when the delivery branches 19b, 20b and 21b themselves are arranged in their lowered position, as shown for example in figure 1.
• the machine 1 further comprises a front longitudinal reference and retaining device 32, which is arranged upstream of the outlet station 12 and comprises a stop body 33, which extends upwards from the conveying assembly 9 and is coupled to the base 8 in sliding manner in a direction parallel to the transversal direction 16 under the bias of an actuator 34 of its own, independent from the actuators 28 and 29.
• the body 33 has, over the plane P, a vertical groove 35 adapted to accommodate and to withhold a frontal peripheral position of the central glass sheets 5.
• the insulated glass sheet 2 is made in the following manner.
• the side glass sheet 3 is arranged essentially on edge over the delivery branch 19b of the conveyor 19 and from here advanced in the longitudinal direction 10 to make it abut against the body 33 of the device 32 and rest on the device 27, as shown in figure 2.
• the delivery branch 19b is raised and the glass sheet 3 carried with its lower edge 3a over the nozzles 30 (fig.
• the conveying assembly 9 advances towards the device 27 until the branch 20b of the conveyor 20 extends under the device 27 itself.
• the central glass sheet 5 supporting one of the internal frames 6 is arranged over the branch 20b and is advanced by the branch 20b itself and in contact with the device 27 in direction 10 towards the front device 32, as shown in figure 6.
• the front device 32 is adjusted in direction 16 so as to allow to insert and withhold the portion or front end edge of the sheet 5 in the slot 35 and consequently maintaining the sheet 5 itself in vertical position (figure 7) .
• the conveying assembly 9 is retracted again to take the branch 19b under the device 27 by spacing the glass sheet 7 from the device 27, as shown in figure 7, after which, the side glass sheet 4 with coupled the respective internal frame 6 is arranged on the conveyor 19 and progressively displaced by the branch 19b and against the device 27 to make it abut against the body 33 (figure 8) . Having reached the body 33, the conveyor 19 is lifted and the sheet 4 carried at the same height of the sheet 3, i.e. in position such as to display a lower edge 4a thereof arranged over the nozzles 30 (figure 9) .
• the devices 26 and 27 Withholding the glass sheets 3,4 and 5 in such a position, the devices 26 and 27 are displaced towards one another in the transversal direction 16 clamping in a pack to one another the sheets 3,4 and 5 and the respective frames 6 forming the insulated glass sheet 2. After clamping, the devices 26 and 27 release the respective glass sheets and the branch 20b of the conveyor 20 is lowered again and, when it is coplanar with the other delivery branches (figure 12) , the insulated glass sheet 2 again resting on the delivery branches 19b, 20b and 21b and guided by the device 27 is advanced by the conveying assembly 9 towards the outlet station 12 and evacuated (figures 13 and 14) .
• the variant shown in figures 15 and 16 relates to a machine 40 similar to machine 1 and wherein the component parts are identified, where possible, with the same reference numbers as the corresponding parts of machine 1.
• the devices 26 and 27 are free from the dispensing nozzles 30 and the machine 40 itself comprises respective nozzles 45 which are carried by the central conveyor 20 to convey two opposite inert gas flows towards the side glass sheet 3 and 4 when the conveyor 20 and the respective delivery branch 20b are arranged in their raised position, shown in figure 16.
• the forming steps of the insulated glass sheet 2 by means of machine 40 differ from those of machine 1 in that the side glass sheets 3 and 4 are no longer raised with respect to the plane P but are maintained stationary over the branches 19b and 21b, i.e. over the vertically fixed resting surface.
• machine 40 instead, only the central glass sheet 5 is displaced by vertically displacing the conveyor 20 so as to allow to convey the inert gas flows by means of the nozzles 45 through the passages present between the sheets 3 and 5 and the internal frames 6 (figure 16) .
• the central sheet 5 is lowered and taken to the leveled position with external glass sheets 3, i.e. with the lower peripheral edges 3a, 4a and 5a arranged on the plane P (figure 15), after which the sheets 3 , 4 and 5 and the frames 6 are clamped in a pack by displacing the devices 26 and 27 towards one another in direction 16 forming, in such a manner, the insulated glass sheet 2 which, at this point, is simply displaced and advanced towards the outlet station 12.
• the spaces between the glass sheets are filled with gas simultaneously instead of during subsequent steps as in the known solutions, thus reducing times and simplifying the filling.
• the conveying assembly 9 could comprise a different number of conveyors and one or more conveyors could be replaced by a common resting and/or sliding surface of the glass sheets.
• the central glass sheet 5 could be maintained in vertical position by using a clamp or jaw device adapted to be coupled to a peripheral edge of the sheets 5, e.g. the upper one in combination with, or instead of, the longitudinal reference and retaining device 32.
• the device 23 could comprise a further stop body, e.g. facing the body 33 and provided with seats or other retaining elements of the central sheet 5.
• the nozzles 30 and/or the nozzles 45 which, in use, send gas flows to the central glass sheet 5 and, respectively, towards the side glass sheets 3,4 in directions orthogonal to the glass sheets themselves may be oriented, conveniently upwards, so as to send gas flows in directions forming angles other than 90° with the respective glass sheets, so as to reduce turbulences and, in general, losses of load and facilitate the introduction of gas into the spaces between the glass sheets and the complete filling of the spaces themselves.
• the nozzles 30,45 could be adjustable as a function of the features of the insulated glass sheet and, for example, the size of the spaces between the glass sheets or the vertical position of between the glass sheets themselves.

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• Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Joining Of Glass To Other Materials (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=46001426

Family Applications (1)

Country Status (3)

Families Citing this family (7)

Family Cites Families (4)

• 2012
  • 2012-01-30 IT IT000076A patent/ITTO20120076A1/it unknown
• 2013
  • 2013-01-30 EP EP13712341.0A patent/EP2809865A1/de not_active Withdrawn
  • 2013-01-30 WO PCT/IB2013/050797 patent/WO2013114302A1/en not_active Ceased

Non-Patent Citations (2)

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