EP4663890A1

EP4663890A1 - Method and system for gluing a glass plate on a leaf

Info

Publication number: EP4663890A1
Application number: EP25178473.2A
Authority: EP
Inventors: Andrea Alessandrini; Pietro PATI; Giacomo Carbonari
Original assignee: Ivision Srl
Current assignee: Ivision Srl
Priority date: 2024-06-10
Filing date: 2025-05-23
Publication date: 2025-12-17

Abstract

Method and system for gluing a glass plate (1) on a leaf (2). The leaf (2) comprises a frame (3) defining a compartment and is provided with a perimeter portion at least partly facing the compartment. The leaf (2) comprises a glass plate (1), inserted within the compartment and in contact with the perimeter portion of the frame (3), and a plurality of locking bodies (4), connected to the perimeter portion (C) of the frame (C) and in contact with a perimeter portion (1a) of the glass plate (1), so as to constrain the glass plate (1). By means of a dispenser (5), an adhesive material is deposited along at least part of a depositing path prepared as a function of a dimensional parameter of the leaf (2) and of a positioning of each locking body (4) along the perimeter portion (C).

Description

The present invention relates to a method and a system for gluing a glass plate on a leaf, for example of a fixture or a window or door.
In other words, the present invention is included in the door and window manufacturing industry.
Generally, a leaf of a door, or of a window, comprises a frame, delimiting a compartment and provided with a perimeter portion extending along an edge of the frame facing the compartment.
The known frames comprise an "L-shaped" profile delimiting the compartment and defining a vertical rest wall and a horizontal base wall: a glass plate is inserted within the compartment and a respective perimeter portion is arranged resting on the base wall and on the rest wall of the frame.
Generally, the glass plate is secured by applying a glazing bead, i.e. a profile, to the frame. In detail, the glazing bead is arranged in a position above the locking elements and the base wall.
Nowadays, assembly of these leaves is performed manually by skilled operators.
In detail, an operator manually inserts the glass plate within the compartment, resting the perimeter portion of the glass plate on the perimeter portion of the frame.
In order to constrain the glass plate to the frame, the operator arranges the locking bodies along the base wall.
Before mounting the glazing bead, the operator applies sections of adhesive, for example sealant, in proximity to the locking bodies to guarantee mechanical hold during the subsequent steps of processing and during use of the leaf.
This application is performed only in sections, since it is impossible on the production line to assign to one operator the task of sealing around the entire perimeter of each leaf processed, disadvantageously causing a reduction in the thermal-acoustic performance and structural resistance of the leaf.
In order to obtain a leaf provided with improved thermal-acoustic performance and increased structural resistance, it is known to apply the adhesive directly onto the leaf, along a respective perimeter portion, in order to then glue the glass plate to it.
As an alternative, it is known to apply an adhesive tape directly onto the leaf, along the respective perimeter portion, in order to then apply the glass plate to it.
These known techniques require, in the processing phase, the leaf to be oriented horizontally and rested on a horizontal work surface, disadvantageously determining large overall dimensions of the production line.
Furthermore, a leaf manufactured by means of these techniques is disadvantageously affected by the drawback that, in the case of breakage of the glass plate, it is not possible to remove it from the frame to replace it, thus making it necessary to purchase a new leaf and discard the broken leaf.
In addition, the known processes are difficult to adapt to leaves of different shapes and dimensions, and are thus suitable for processing a single line of leaves.
In addition, the known processes are difficult to adapt to leaves of different shapes and dimensions, since the profiles require a construction adaptation, and are thus not suitable for processing a plurality of leaves of different dimension and shape, in a stretched flow production process. The technical task of the present invention is thus to provide a method and a system for gluing a piece of glass on a leaf that are capable of overcoming the drawbacks that have emerged from the prior art.
An object of the present invention is to provide a method and a system for gluing a piece of glass on a leaf that are capable of improving the thermal and acoustic performance of the leaf.
An object of the present invention is to provide a method and a system for gluing a piece of glass on a leaf that are capable of defining a structural synergy between the frame and the glass plate, so as to guarantee a high structural hold, for example in the case of thermal and mechanical stresses applied to the leaf.
An object of the present invention is to provide a method and a system for gluing a piece of glass on a leaf that are capable of adapting the gluing to any misplacements of the glass plate along the perimeter portion of the frame or any deformities of the frame and/or the glass plate.
An object of the present invention is to provide a method and a system for gluing a piece of glass on a leaf that are adaptable to leaves of different shapes and dimensions.
The specified technical task and the specified objects are substantially achieved by a method for gluing a piece of glass on a leaf comprising the technical features set forth in one or more of the appended claims 1 to 10 and a system for gluing a piece of glass on a leaf comprising the technical features set forth in one or more of the appended claims 11 to 14.
The dependent claims correspond to possible embodiments of the invention.
In particular, the present invention provides for arranging a leaf comprising a frame, delimiting a compartment and provided with a perimeter portion extending along an edge of the frame facing the compartment.
The leaf comprises a glass plate, inserted within the compartment and having its own perimeter portion rested on the perimeter of the frame.
The leaf comprises plurality of locking bodies connected to the perimeter portion of the frame and in contact with the perimeter portion of the glass plate, so as to constrain the glass plate in a predetermined position along the perimeter portion.
In accordance with an aspect of the present invention, a detection step is envisaged for detecting a piece of identifying information, representing a dimensional parameter of the leaf and/or a positioning of each locking body along the perimeter portion of the frame, preferably performed by means of a sensor selected from: a laser sensor, an ultrasound sensor, a computerised vision sensor.
In accordance with an aspect of the present invention, a processing step is envisaged for processing at least one piece of identifying information detected to obtain a depositing path extending at least partially along the perimeter portion of the frame.
By means of a dispenser, configured to dispense an adhesive material, it is envisaged to perform a depositing step for depositing the adhesive material along at least one part of the depositing path processed.
The depositing step is performed by moving the dispenser with respect to the leaf along the depositing path.
Preferably, the dispenser is mounted on a robotic arm, which allows the dispenser itself to be moved along the depositing path and/or the dispenser to be rotated along a plurality of directions independent from each other and arbitrarily settable.
Advantageously, it is possible to perform a controlled depositing of adhesive material, which allows a structural synergy between the frame and the glass plate to be obtained.
A high structural hold against any thermal and mechanical stresses applied to the leaf is thus guaranteed.
Advantageously, it is possible to deposit the adhesive material as a function of the dimensional parameter, for example a width, length or depth, of the leaf and/or the glass plate, which allows the movement steps for moving the dispenser to be adapted and depositing on leaves and glass plates of different shapes and dimensions.
Preferably, an inclination and/or a flow rate of the dispenser with respect to the glass plate is adjustable as a function of at least one piece of identifying information detected.
Advantageously, it is therefore possible to obtain an improved structural synergy between the leaf and the glass plate.
Preferably, the detection step for detecting the piece of identifying information of the dimensional parameter comprises detecting a surface profile of the glass plate and/or the frame, and the depositing step comprises adjusting the inclination of the dispenser with respect to the glass plate based on the surface profile detected.
In accordance with an aspect of the present invention, the depositing path is modifiable during the movement step for moving the dispenser as a function of a piece of identifying information, representing a dimensional parameter of the leaf and/or a piece of identifying information of a positioning of each locking body with respect to the glass plate during the movement step thereof.
Advantageously, it is thus possible to adjust in real time the movement step for moving the dispenser.
Further characteristics and advantages of the present invention will become more apparent from the indicative and thus non-limiting description of an embodiment of a method and a system for gluing a glass plate on a leaf.
Such a description will be set out below with reference to the accompanying drawings, which are provided solely for illustrative and therefore non-limiting purposes, in which:

Figure 1 shows a schematic perspective view of the system for gluing a glass plate on a leaf of the present invention;
Figure 2 shows a schematic perspective view of a step of the method for gluing a glass plate on a leaf of the present invention;
Figure 3 shows a schematic front view of a frame of the leaf;
Figure 4 shows a schematic cross-sectional view along the line "IV-IV" of the frame of Figure 3.

The present invention provides a method for gluing a glass plate 1 on a leaf 2.
With reference to Figure 2, the leaf 2 can be incorporated into, or configured to define at least partially, a fixture or a window or door and, for that purpose, comprises an interconnection portion 2a interconnecting with a wall or with an interconnection frame interconnecting with a wall.
The leaf 2 comprises a frame 3, delimiting a compartment "V" and provided with a perimeter portion "C" delimiting the compartment "V".
The frame 3 is connected to the interconnection portion 2a by means of known interconnection means, such as, for example, hinge pins or sliding blocks, configured to allow a connection of the frame 3 itself with the interconnection portion 2a.
Preferably, the frame 3 is made of a plastic material, such as PVC, or of a material containing cellulose, such as wood, or of aluminium.
The leaf 2 comprises a glass plate 1, inserted within the compartment "V". A perimeter portion 1a of the glass plate 1 is inserted arranged resting on the perimeter portion "C".
The term "perimeter portion" of the frame 3 is intended to mean a portion defining an edge of the frame 3 at least partly facing the compartment "V" and delimiting the compartment "V".
The term "perimeter portion" of the glass plate 1 is intended to mean a portion defining the outline of the glass plate 1, i.e. a portion of the glass plate 1 defining the edges of the glass plate 1 itself.
Preferably, in order to give greater thermal and acoustic insulation to the fixture, or to the window or door, the leaf 2 comprises a double pane, i.e. at least one pair of glass plates 1 coupled by means of a metal frame subjected to double sealing, separated by a gap of dehydrated air or gas, the perimeter of which is generally formed of a lightweight metal frame subjected to double sealing.
In more detail, with reference to Figure 2 and to Figure 4, the frame 3 comprises a rest wall "C1" and a base wall "C2", transverse to the rest wall "C1", defining the perimeter portion "C".
The base wall "C2" is facing the compartment "V", whereas the rest wall "C1" is transverse to the base wall "C2".
Preferably, the rest wall "C1" and the base wall "C2" are orthogonal to each other.
The perimeter portion 1a of the glass plate 1 is arranged in contact with the base wall "C2" and with the rest wall "C1". In other words, at least part of the base wall "C2" is configured to define a resting base for a first zone of the perimeter portion 1a of the glass plate 1 and at least part of the rest wall "C1" is configured to define a resting base for a second zone of the perimeter portion 1a of the glass plate 1 adjacent to, and extending transversely to, the first zone.
In order to constrain the glass plate 1 in a predetermined position along the perimeter portion "C", the leaf 2 comprises a plurality of locking bodies 4, connected to the perimeter portion of the frame 3 and in contact with the perimeter portion 1a of the glass plate 1.
In detail, the locking bodies 4 are connected to the base wall "C2". In other words, the locking bodies 4 are suitable for "fixing" the perimeter portion 1a of the glass plate 1 so as to maintain the glass plate 1 in a fixed and predetermined position.
Preferably, the locking bodies 4 are glued to the perimeter portion 1a of the glass plate 1.
In accordance with an embodiment, the perimeter portion "C" of the frame 3 has a substantially quadrangular shape, and the perimeter portion 1a of the glass plate 1 also has a substantially quadrangular shape.
In accordance with further embodiments, the perimeter portion "C" of the frame 3 and the perimeter portion 1a of the glass plate 1 have a substantially circular, elliptical, or closed polygonal shape.
The method of the present invention comprises a preparation step for preparing the leaf 2 and, subsequently, a detection of a piece of identifying information useful for controlling a depositing of adhesive material, for example a silicone material, along the perimeter portion "C" of the frame 3 and/or on the perimeter portion 1a of the glass plate 1.
In detail, the method comprises a detection step for detecting a first piece of identifying information, representing a dimensional parameter of the leaf 2.
The term "dimensional parameter" is intended to mean a parameter having length as a unit of measurement.
Preferably, the detection step is performed by means of sensors, laser, ultrasound and computerised vision.
Preferably, the leaf 2 comprises a recognition code 6 (schematically illustrated in Figure 2), arranged on the frame 3, for example applied to the frame 3 by means of removable adhesive, and representing the dimensional parameter of the leaf 2, and the detection step for detecting the first piece of identifying information comprises detecting the identification code 6.
Preferably, the identification code 6 is applied to the support bar 40. The representing code is, for example, obtained in the form of a barcode or QR code.
Preferably, the detection step for detecting the first piece of identifying information comprises both detection of the dimensional parameter of the leaf 2 and detection of the identification code 6.
The method comprises a detection step for detecting a second piece of identifying information, representing a positioning of each locking body 4 along the base wall "C2".
Therefore, the second piece of identifying information relates, for example, to a relative positioning between the glass plate 1 and each locking body 4.
For example, the second piece of identifying information can be representative of the extension, along the perimeter portion "C", preferably along the base wall "C2", of each locking body 4 and/or the distance of each locking body 4 with respect to a predefined portion of the frame 3 and/or of the glass plate 1.
The method of the present invention provides for a processing of the first and the second piece of identifying information detected to obtain a depositing path "P" (schematically illustrated in Figure 3) extending at least partially along the perimeter portion "C" of the frame 3.
In detail, a preparation step is envisaged for preparing and moving a dispenser 5, configured to dispense an adhesive material, for example a silicone material.
Preferably, the adhesive material comprises a two-component glue, or a silicone glue.
In detail, the movement step comprises moving the dispenser 5 with respect to the leaf 2 along the depositing path "P" processed and simultaneously performing a depositing step, performed by means of the dispenser 5 itself, of the adhesive material along at least part of the depositing path "P" processed.
The method of the present invention, by allowing the depositing path "P" to be defined as a function of the first piece of identifying information, representing the dimensional parameter, advantageously guarantees an adaptability of depositing of the adhesive material on leaves 2 of different dimensions and types.
Furthermore, the method of the present invention, by allowing the depositing path "P" to be defined as a function of the second piece of identifying information, representing the positioning of the locking bodies 4, advantageously guarantees an adaptability of depositing of the adhesive material to any misplacements of the locking bodies 4.
Preferably, the detection step for detecting the first piece of identifying information is performed by detecting a dimension of the frame 3 and/or of the compartment "V", such as, for example, a height and/or a length and/or width thereof, and/or a dimension of the perimeter portion "C", such as, for example, a length or a width of the base wall "C2".
Preferably, the detection step for detecting the first piece of information is performed by detecting a surface profile of the glass plate 1, and therefore the depositing path "P" is defined as a function of the surface profile of the glass plate 1.
Preferably, the detection step for detecting the first piece of identifying information comprises detecting a surface profile of the base wall "C2", and therefore the depositing path "P" is defined as a function of the surface profile of the base wall "C2".
Advantageously, it is therefore possible to adapt depositing of the adhesive material to any deformities of the frame 3 and/or the glass plate 1, which is particularly important in the case in which the adhesive material belongs to the class of silicones or polyurethanes, where precision is crucial to guaranteeing an efficient hold of the adhesive material itself.
In accordance with an aspect of the present invention, the processing step comprises performing a mapping of the surface of the glass plate 1 and/or the frame 3 so as to obtain a three-dimensional mapping of the leaf 2 depicting the irregularities, curvatures and deformities present on the respective surfaces.
The map is then analysed to identify the specific sections in which the adhesive material will be applied and to process the depositing path "P".
Preferably, the detection step for detecting the first piece of identifying information is performed by detecting a positioning of the glass plate 1 along the perimeter portion "C", and therefore the depositing path "P" is defined as a function of the relative positioning between the frame 3 and the glass plate 1.
Advantageously, it is possible to adapt depositing of the adhesive material to any misplacements of the glass plate 1 along the perimeter portion "C". In accordance with an aspect of the present invention, the movement step comprises translating the dispenser 5 towards and away from the base wall "C2".
In detail, the dispenser 5 is translated towards the base wall "C2" to apply the adhesive material to regions of the perimeter portion 1a not in contact with the locking bodies 4 and away from the base wall "C2" to circumvent regions thereof in contact with the locking bodies 4.
Preferably, when the dispenser 5 is translated away from the base wall "C2", the adhesive material is not dispensed.
Therefore, translation of the dispenser 5 towards and away from the base wall "C2" is performed at least as a function of the second piece of identifying information.
In accordance with an aspect of the present invention, the movement step comprises translating the dispenser 5 along a plurality of independent directions with respect to the leaf 2.
Therefore, the dispenser 5 is movable along the depositing path "P" along any one arbitrary direction, transverse or parallel with respect to the leaf 2. Preferably, the movement step comprises adjusting an inclination of the dispenser 5 with respect to the glass plate 1 as a function of the first and/or the second piece of identifying information detected.
Advantageously, it is possible to adapt in an improved manner depositing of adhesive material to any misplacements of the locking bodies 4, to angled or curved portions of the perimeter portion "C", and also to any misplacements of the glass plate 1 along the perimeter portion "C" or to possible deformities of the frame 3 and/or the glass plate 1.
In accordance with an aspect of the present invention, and with reference to Figure 3, the processing step comprises processing the first and the second piece of identifying information to obtain a depositing path "P" provided with at least one outer section "PE", distanced from the base wall "C2" and at least partially overlying one of the locking bodies 4, and at least one inner section "PI", successive to the outer section "PE", close to the base wall "C2" and extending along at least part of the base wall "C2" interposed between successive locking bodies 4.
In other words, the method comprises successive translations of the dispenser 5 towards the base wall "C2" and along the inner section "PI", and away from the base wall "C2" and along the outer section "PE".
In accordance with an aspect of the present invention, the inner section "PI" comprises respective angled portions "PA", extending along corresponding angled portions of the perimeter portion 1a of the glass plate 1 and of the perimeter portion "C" of the frame 3.
The depositing path "P" is therefore a closed path, and the movement step comprises moving the dispenser 5 along the depositing path "P" in an anticlockwise direction (as schematically illustrated by the arrows of Figure 4) or in a clockwise direction.
The depositing step comprises commanding the dispenser 5 to dispense the adhesive material along the inner section "PI".
In other words, the depositing step comprises deactivating the dispensing of adhesive material along the outer section "PE" and activating, preferably adjusting, the flow rate of the dispenser 5 along the inner section "PI".
In accordance with an aspect of the present invention, the depositing step comprises depositing the adhesive material along the entire inner section "PI".
Preferably, the method comprises adjusting the inclination of the dispenser 5 with respect to the glass plate 1 along the angled portions "PA".
It is thus possible to obtain a more precise depositing along the angled portions of the frame 3 and the glass plate 1 as well.
Advantageously, depositing of the adhesive material along the inner section "PI", as also depositing of the adhesive material along the angled sections "PA", allows a leaf 2 with improved thermal and acoustic performance to be obtained.
In other words, depositing of the adhesive material along the inner section "PI", as also depositing of the adhesive material along the angled sections "PA", allows a structural synergy to be defined between the frame 3 and the glass plate 1, capable of guaranteeing a high structural hold against any thermal and mechanical stresses applied to the leaf 2.
In other words, the method of the present invention allows a leaf of improved quality to be obtained.
In order to control depositing of the adhesive material in real time, the method comprises a control step for controlling the depositing path "P", performed during the movement and depositing steps.
The control step comprises detecting the first and/or the second piece of identifying information during the movement and depositing steps, and processing the first and/or the second piece of identifying information detected in order to change the depositing path "P" as a function of the processing.
In other words, thanks to the control step it is possible to constantly recalculate the depositing path "P".
It is therefore advantageously possible to optimise and adapt the depositing path "P" in real time, directly during depositing of the adhesive material.
In accordance with an aspect of the present invention, the depositing step comprises adjusting a flow rate of adhesive material dispensed by means of the dispenser 5 as a function of the first and/or the second piece of identifying information.
Advantageously, it is possible to adjust the flow rate of the dispenser 5 as a function of any misplacements of the locking bodies 4, to angled or curved portions of the perimeter portion "C", and also to any misplacements of the glass plate 1 within the perimeter portion "C" or to possible deformities of the frame 3 and/or the glass plate 1.
For example, if the glass plate 1 has concave portions, it is possible to deposit a greater quantity of adhesive material in those portions, so as to "fill them", or it is possible to deposit a greater quantity of adhesive material along the angled portions "PA", so as to guarantee an improved gluing.
In accordance with an embodiment, the locking bodies 4 are in contact with the glass plate 1 so as to constrain the perimeter portion 1a of the glass plate 1 at a predetermined distance, preferably comprised between 3mm and 4mm with respect to the base wall "C2".
In this case, the depositing step comprises depositing the adhesive material between the base wall "C2" and the perimeter portion 1a of the glass plate 1.
In this case, the detection step for detecting the first piece of identifying information comprises detecting the distance between the base wall "C2" and the perimeter portion 1a, and the adjustment step for adjusting the flow rate of the dispenser 5 is performed as a function of the distance detected.
Following the depositing step for depositing the adhesive material, further processing steps are envisaged, such as, for example, mounting of glazing beads (not illustrated in the appended figures) arranged covering the base wall "C2" and the locking bodies 4.
The glazing beads are fixed by means of the adhesive material deposited. With reference to Figures 1 and 2, the present invention further provides a system 100, suitable for performing the method for gluing the glass plate 1 on the leaf 2.
The system 100 comprises a feed station 101, configured to feed the leaf 2.
The feed station 101 comprises conveyor means 101a, for example obtained in the form of a roller conveyor, or in the form of a conveyor belt, configured to feed the leaf 2 and to move the leaf 2 along a working path. Preferably, the conveyor means 101a comprises single-drive conveyor belts, which advantageously guarantee a delicate transport of the leaf 2.
The system 100 comprises a gluing station 102, arranged downstream of the feed station 101, in detail along the working path, configured to deposit adhesive material along the perimeter portion "C" of the frame 3.
The gluing station 102 comprises a dispenser 5, configured to dispense an adhesive material, movement means 102a, configured to move the dispenser 5 with respect to the leaf 2, and at least one sensor device 7, configured to detect the first piece of identifying information and the second first piece of identifying information.
Preferably, the sensor device 7 is mounted on, and solidly constrained to, the movement means 102a.
Preferably, the sensor device 7 comprises at least one sensor selected from: a laser sensor, an ultrasound sensor, a computerised vision sensor.
The dispenser 5 therefore comprises a feed chamber (not illustrated in the appended figures), configured to contain the adhesive material to be deposited, and a traditional nozzle (not illustrated in the appended figures) or large-slotted nozzle in fluid communication with the feed chamber, configured to dispense the adhesive material.
The system 100 comprises a control unit 8, operatively connected to the sensor device 7, to receive the first and the second piece of identifying information, and configured to process the first and the second piece of identifying information so as to obtain a depositing path for the dispenser 5.
The control unit 8 is operatively connected to the movement means 102a, in order to drive the movement means 102a so as to move the dispenser 5 with respect to the leaf 2 along the depositing path "P" processed, and to the dispenser 5, in order to drive a depositing of adhesive material along at least part of the depositing path "P" processed.
In other words, the control unit 8 is configured to perform one or more steps of the method of the present invention.
Advantageously, thanks to the control unit 8 it is possible to drive the movement means 102a in a standardised manner.
Preferably, the control unit 8 is configured to perform an automatic check on the laser plausibility to check the precise thickness of the glass plate 1. Preferably, the movement means 102a comprises a robotic arm 103.
The robotic arm 103 is configured to move the dispenser 5 with respect to the leaf 2 along the depositing path "P", preferably translating the dispenser 5 towards and away from the base wall "C2" and/or adjusting an angle of the dispenser 5 with respect to the leaf 2.
The robotic arm 103 allows the dispenser 5 to be moved with respect to the leaf 2 along a plurality of independent directions with respect to the leaf 2 itself, advantageously allowing an improved depositing of the adhesive.
Preferably, the sensor device 7 is mounted on the robotic arm 103, which is configured to move the sensor device 7 with respect to the leaf 2 to detect the first piece of identifying information and/or the second piece of identifying information and/or during the depositing step.
Therefore, in accordance with an aspect of the present invention, the movement means 102 is configured to move the sensor device 7 and the dispenser 5 along the leaf 2.
The robotic arm 103 allows the sensor device 7 to be moved with respect to the leaf 2 along a plurality of independent directions with respect to the leaf 2 itself, advantageously allowing an improved detection of the first and/or the second piece of identifying information.
In detail, the robotic arm 103 is movable on absolute axes with respect to the space and the leaf 2, and can also be fixed or, alternatively, mounted on a slide and therefore movable with respect to the leaf 2.
Advantageously, the robotic arm 103 allows the dispenser 5 and/or the sensor device 7 to be moved in a precise and repeatable manner, guaranteeing a uniform application of the adhesive material.
In detail, the movement means 102a moves the sensor device 7 in a manner to allow detection of the first and the second piece of identifying information, in order to perform the detection steps, and moves the dispenser 5 along the depositing path "P" processed, in order to perform the depositing step.
Preferably, the system 100 comprises a support frame, or wall (not illustrated in the appended figures) arranged transversely with respect to the conveyor means 101 to allow movement of the leaf 2 into an inclined position with respect to the conveyor means 101.
Advantageously, it is therefore possible to obtain a system 100 with reduced overall dimensions.
Advantageously, the present invention is capable of overcoming the drawbacks which have emerged from the prior art.
Advantageously, thanks to processing of the depositing path "P", it is possible not only to adapt the depositing of adhesive material to different leaf shapes and dimensions, but also to obtain leaves of improved quality. Advantageously, the present invention allows human error to be reduced, since processing of the depositing path "P" and movement of the dispenser 5 are performed automatically, i.e. without providing for the manual contribution of an operator, and this also allows a reduction of costs and processing time of the leaf 2 (for example, the system 100 requires from 60 to 65 seconds for application of the glue on a leaf 2 with a width of 1 m and a height of 1.2 m).
The present invention allows depositing of a constant quantity of glue on each leaf 2 processed.

Claims

A method for gluing a glass plate (1) on a leaf (2), comprising the steps of:
- arrangement of a leaf (2), comprising:

- a frame (3) defining a compartment (V) and provided with a perimeter portion (C) delimiting the compartment (V), wherein the frame (3) comprises a rest wall (C1) and a base wall (C2) defining said perimeter portion (C), the base wall (C2) facing the compartment (V) and the rest wall (C1) being transverse to the base wall (C2);

- a glass plate (1), inserted within the compartment (V), wherein a perimeter portion (1a) of the glass plate (1) is arranged in contact with said base wall (C2) and with said rest wall (C1);

- a plurality of locking bodies (4), connected to the base wall (C2) and arranged in contact with the perimeter portion (1a) of the glass plate (1), so as to constrain the glass plate (1) in a predetermined position along the base wall (C2);

- detection of a first piece of identifying information, representing a dimensional parameter of the leaf (2);

- detection of a second piece of identifying information, representing a positioning of each locking body (4) along the base wall (C2);

- arrangement of a dispenser (5), configured to dispense an adhesive material;

- processing of the first and the second piece of identifying information detected to obtain a depositing path (P) for the dispenser (5) extending at least partially along the perimeter portion (C) of the frame (3);

- movement of the dispenser (5) with respect to the leaf (2) along the depositing path (P) processed and depositing, by means of the dispenser (5), of the adhesive material along at least part of the depositing path (P) processed.
The method according to claim 1, wherein the processing step comprises processing the first and the second piece of identifying information detected to obtain a depositing path (P) for the dispenser (5) provided with:
- at least one outer section (PE), distanced from the base wall (C2) and at least partially overlying one of said locking bodies (4);

- at least one inner section (PI), successive to the outer section (PE), close to the base wall (C2) and extending along at least part of the base wall (C2) interposed between successive locking bodies (4);
wherein the depositing step comprises commanding the dispenser (5) to dispense the adhesive material along the inner section (PI).
The method according to claim 1 or 2, wherein the perimeter portion (C) of the frame (3) has a substantially quadrangular conformation, wherein the perimeter portion (1a) of the glass plate (1) has a substantially quadrangular conformation, and wherein the processing step comprises processing the first and the second piece of identifying information detected to obtain a closed depositing path (P) comprising:
- at least one outer section (PE), distanced from the base wall (C2) and at least partially overlying at least one of the locking bodies (4);

- at least one inner section (PI), successive to the outer section (PE), close to the base wall (C2) and extending along at least part of the base wall (C2) interposed between successive locking bodies (4);
wherein the inner section (PI) comprises respective angled portions (PA), extending along corresponding angled portions of the perimeter portion (1a), and wherein the depositing step comprises depositing, by means of the dispenser (5), the adhesive material along the inner section (PI).
The method according to any one of the preceding claims, wherein the movement step comprises translating the dispenser (5) towards and away from the base wall (C2) and along a plurality of independent directions with respect to the leaf (2) as a function of the first and/or the second piece of identifying information detected.
The method according to any one of the preceding claims, wherein the movement step comprises adjusting an inclination of the dispenser (5) with respect to the glass plate (1) as a function of the first and/or the second piece of identifying information detected.
The method according to any one of the preceding claims, comprising a step for controlling the depositing path (P), performed during the movement and depositing steps, comprising:
- detecting the first and/or the second piece of identifying information;

- processing the first and/or the second piece of identifying information detected during the control step in order to change the depositing path (P) as a function of the processing.
The method according to any one of the preceding claims, wherein the depositing step comprises adjusting a flow rate of adhesive material dispensed by means of the dispenser (5) as a function of the first and/or the second piece of identifying information.
The method according to any one of the preceding claims, wherein the step for detecting the first piece of information is performed by selecting the dimensional parameter from: a dimension of the frame (3), a dimension of the base wall (C2) and/or a surface profile of the glass plate (1) and/or a surface profile of the base wall (C2).
The method according to any one of the preceding claims, wherein the leaf (2) comprises a recognition code (6), arranged on the frame (3) and representing the dimensional parameter of the leaf (2), and wherein the detection step of the first piece of identifying information comprises detecting the identifying code (6).
The method according to any one of the preceding claims, comprising a step for assembling a glazing bead performed by positioning said glazing bead in a position surmounting the locking bodies (4) and the base wall (C2) and in contact with the adhesive material deposited.
A system (100) for gluing a glass plate (1) on a leaf (2), comprising:
- a feed station (101), configured to feed a leaf (2), the leaf (2) comprising:

- a frame (3) delimiting a compartment (V) and provided with a perimeter portion (C) delimiting the compartment (V), wherein the frame (3) comprises a rest wall (C1) and a base wall (C2) defining said perimeter portion (C), the base wall (C2) facing the compartment (V) and the rest wall (C1) being transverse to the base wall (C2);

- a glass plate (1), inserted within the compartment (V), wherein a perimeter portion (1a) of the glass plate (1) is arranged in contact with said base wall (C2) and with said rest wall (C1);

- a plurality of locking bodies (4), connected to the base wall (C2) and arranged in contact with the perimeter portion (1a) of the glass plate (1), so as to constrain the glass plate (1) in a predetermined position along the base wall (C2);

- a gluing station (102), arranged downstream of the feed station (101), comprising:

- a dispenser (5), configured to dispense an adhesive material;

- movement means (102a), configured to move the dispenser (5) with respect to the leaf (2);

- at least one sensor device (7), configured to detect a first piece of identifying information, representing a dimensional parameter of the leaf (2), and a second piece of identifying information, representing a positioning of each locking body (4) along the base wall (C2);

- a control unit (8), operatively connected to the sensor device (7), in order to receive the first and the second piece of identifying information, and configured to process the first and the second piece of identifying information so as to obtain a depositing path (P) for the dispenser (5) extending at least partially along the perimeter portion (C) of the frame (3); wherein the control unit (8) is operatively connected to the movement means (102a), in order to drive the movement means (102a) so as to move the dispenser (5) with respect to the leaf (2) along the depositing path (P) processed, and to the dispenser (5) in order to drive a depositing of adhesive material along at least part of the depositing path (P) processed.
The system (100) according to claim 11, wherein the movement means (102a) comprises a robotic arm (103), configured to:
- move the dispenser (5) with respect to the leaf (2) along the depositing path (P), preferably to translate the dispenser (5) towards and away from the base wall (C2) and to adjust an angle of the dispenser (5) with respect to the leaf (2); and/or

- move the sensor device (7) in order to detect the first piece of identifying information and/or the second piece of identifying information.
The system (100) according to claim 11 or 12, wherein the sensor device (7) comprises at least one sensor selected from: a laser sensor, an ultrasound sensor, a computerised vision sensor.
The system (100) according to any one of claims 11 to 13, wherein the control unit (8) is configured to perform one or more steps of the method according to one or more of claims 1 to 10.