Method of cutting joinery and device for cutting joinery

Abstract

The invention relates to a method for cutting a joinery (10) by a cutting device (100), the joinery (10) being of the type comprising at least one frame (11) and a glazing (12), the method being characterized in that it comprises a step of cutting the glazing (12) of the joinery (10) by a cutting tool (20) along the frame (11) and at a predetermined distance (d) from said frame (11) so as to separate a main portion (12A) of the glazing (12). The invention also relates to a cutting device (100) for implementing at least one such cutting step.

Description

TECHNICAL FIELD OF THE INVENTION

[0001] The invention relates, in general, to the technical field of woodwork recycling. The invention may relate to different sectors of activity, such as that of designers of automated cutting centers or that of extended producer responsibility (EPR) sectors in the construction sector.

[0002] The invention relates more specifically to a method of cutting joinery, in particular for separating a frame of glazing from the joinery, and to an associated cutting device. STATE OF THE PRIOR ART

[0003] Recycling joinery allows the majority of components of a joinery to be recovered and transformed into secondary raw materials or to produce energy. However, the different materials that make up a joinery are not reused in the same way and must therefore be separated before being sorted.

[0004] Generally speaking, joinery is composed of a fixed part, called a frame, a movable part, called an opening or leaf, which includes at least one structure framing a glazing, and fixing elements which allow the frame and the leaf to be connected on the one hand. The frame and the leaf, possibly with the frame, form a frame of the joinery. Thus, joinery can independently designate a window, a French window, a glazed balcony, a bay window or any other structure comprising a frame surrounding a glazing.

[0005] It is understood that the glazing may be a single plate or wall of transparent and / or translucent material, generally glass, or an assembly of several walls, for example two or three walls separated two by two by a layer of air or insulating gas. Such assemblies of two or three walls such as glazed walls are called respectively double glazing and triple glazing.

[0006] Glazing units are also known which include vertical and / or horizontal connecting elements made of wood, plastic material(s) or metal, fixed to external surfaces or within the thickness of the glazing. These connecting elements are commonly called "crosspieces" and can be used to connect a plurality of glass plates together, for example to obtain a larger surface area of joinery, to reinforce the joinery or even to serve as ornaments.

[0007] The frame and the structure of the leaf framing the glazing of the joinery forming the frame are usually made from the same material, the material being able to be wood, and / or one or more plastic material(s), for example polyvinyl chloride (PVC), and / or one or more metallic material(s), for example aluminum.

[0008] Today, we know of various methods for dismantling joinery, particularly for recovering the glazing for recycling.

[0009] To recover the glazing from a joinery, it is known to lift the joinery and hit it on the ground until one of the four corners of the joinery breaks, so that the frame is at least partially detached from the glazing. Then, the remaining edges of the joinery are manually detached. The glazing thus obtained still includes some of the connecting elements of the joinery which must be removed such as seals or other materials. Finally, the portions of the glazing which are in contact with the connecting elements must be washed or even cut to allow its recycling.

[0010] This process is often carried out by hand and can be dangerous for the operator, who could injure himself by hitting the woodwork. Furthermore, the various steps involved make removing the glass long and tedious, and therefore costly. Finally, placing the glass in contact with the ground impairs the cleanliness of the glass and limits its reuse or, if necessary, requires at least one additional cleaning step.

[0011] A known alternative is to perform a deglazing. To do this, the operator dismantles the joinery in the reverse order of its assembly, starting by removing the glazing beads from the joinery, then removing the glazing by pressure. However, the resulting glazing generally includes residues of the connecting elements which must be removed according to the process described above. This process, although safer for the operator, is time-consuming, and does not allow the separation of the glazing from joinery on the assembly line.

[0012] Another option is to remove the glass from the window at a dedicated sorting facility. However, sending the window frames to the facility incurs additional costs and consequently pollutes the glass due to the tools used. In such a configuration, the recovered glass does not meet the required recycling standards. STATEMENT OF THE INVENTION

[0013] The invention aims to overcome all or part of the drawbacks of the state of the art by proposing in particular a solution making it possible to recover the glazing from the windows in a single step while maintaining a level of purity allowing it to be recycled without requiring tedious cleaning operations of the material constituting the glazing.

[0014] To do this, according to a first aspect of the invention, a method of cutting a joinery by a cutting device is proposed, the joinery being of the type comprising at least one frame and one glazing, the method being remarkable in that it comprises a step of cutting the glazing of the joinery by a cutting tool along the frame and at a predetermined distance from said frame so as to separate a main portion of the glazing.

[0015] Cutting the glazing at a predetermined distance from the frame has the technical advantage of allowing a portion of the glazing to be recovered in a single step that can be used in recycling channels without having to carry out one or more additional steps of dismantling the fastening elements of the joinery or cleaning the glazing, as is common in the state of the art. This main portion of the glazing then designates a part of the glazing that is relatively pure and can be recycled without any other form of cleaning and does not require additional operations before recycling. This main portion of the glazing is thus separated from a peripheral portion of the glazing secured to the frame, it being understood that the peripheral portion of the glazing remains secured to the frame after cutting. It is thus easy to obtain, from a joinery assembled with a glazing and a frame, clean glass, i.e. cullet, ready to be recycled.

[0016] The term "cutting" refers to the act of separating into pieces in a controlled manner and following a given cutting path. Such cutting is therefore distinct from simple breakage of the glass. This cutting path or line followed by the cutting tool is located at a predetermined distance from an edge of the frame, preferably at a predetermined distance that is substantially constant along the associated edge of the frame. This cutting allows the glazing to be cut throughout its entire thickness to ensure the separation of the two parts of the glazing thus cut.

[0017] According to one embodiment, the predetermined distance is less than or equal to 100 mm, preferably less than or equal to 50 mm and / or greater than or equal to 5 mm, preferably greater than or equal to 10 mm, for example equal to 20 mm.

[0018] Such a predetermined distance for cutting the joinery makes it possible to limit the presence of connecting elements in the main portion of glazing recovered for recycling. This predetermined distance is evaluated to ensure, on the one hand, that glass can be collected that guarantees the least possible impurity to meet the recycling problem, and on the other hand, that a maximum quantity of clean glass is collected.

[0019] According to one embodiment, the glazing is completely delimited by the frame, the glazing constituting an interior portion of the frame. In other words, in such a configuration, the frame delimits a closed contour surrounding the glazing. In this case, the cutting tool moves along a cutting path located at a predetermined distance from an interior edge of the frame. According to another embodiment, the glazing is partially delimited by the frame.

[0020] According to one embodiment, the frame comprises at least part of a frame and / or a structural part of the opening, the frame being connected to the glazing by connecting elements. These connecting elements can be of different types and provide different functions: for example to ensure the fixing of the glazing in the frame, the correct positioning in the frame, the sealing between the frame and the glazing, etc. The connecting elements can comprise, for example, profiles, sealing gaskets, an interlayer profile, a glazing bead, etc.

[0021] According to one embodiment, the frame of the joinery comprises an assembly of wooden parts and / or parts made of metallic material(s) and / or parts made of plastic material(s).

[0022] According to one embodiment, the method comprises, after the step of cutting the glazing, a step of cutting the frame at least by the cutting tool into several pieces. Thanks to such a characteristic, the frame is cut by the same tool as that which previously cut the glass. These two steps of cutting the glazing then the frame, although implemented by the same cutting tool, are successive so as to guarantee a perfect separation of the clean glass on one side and the frame on the other side. The cutting method can thus be easily implemented by the same cutting device, and in particular by the same cutting tool, making it simpler to use.

[0023] According to a preferred embodiment, the size of the cut pieces of frame is predetermined. Preferably, substantially straight pieces of the frame will be cut.

[0024] According to one embodiment, the method comprises, prior to the step of cutting the glazing, a step of immobilizing the joinery by position-holding devices. Preferably, the position-holding devices comprise horizontal immobilization means and vertical immobilization means. The position-holding devices comprise, for example, one or more jaws to ensure immobilization in a support plane of the joinery, preferably of the frame, and / or fixing clamps to ensure vertical immobilization of the joinery, in particular of the frame, before the step of cutting the glazing.

[0025] The stage of immobilizing the joinery has the advantage of facilitating and accelerating the glazing cutting stage. In particular, if the cutting process is automated, the immobilization stage makes it possible to position the joinery in relation to the cutting tool to collect the largest possible main portion of glazing. Furthermore, such position-holding devices ensure the precision of the cutting.

[0026] Preferably, the holding devices comprise at least: a movable jaw for positioning the joinery relative to the cutting tool and at least one fixed jaw for holding the joinery in a horizontal position and / or fixing clamps for holding the joinery in at least a vertical position.

[0027] According to one embodiment, the clamps are connected to jacks controlled remotely by a solenoid valve. The clamps are movable between an open position, during which the clamps are at a distance from the joinery, and a closed position, during which the joinery is blocked horizontally. Of course, the clamping clamps can be replaced in practice by any immobilization means capable of gripping an upright of the joinery frame, preferably a single upright.

[0028] According to one embodiment, the method comprises, prior to the step of immobilizing the joinery, a step of conveying the joinery into the cutting device by a conveyor.

[0029] The presence of a conveyor makes it possible to automatically convey the joinery into the cutting device. In particular, for an automated cutting process, the conveyor makes it possible to bring and load joinery into the cutting device at regular time intervals or on command in order to carry out the assembly line cutting of joinery.

[0030] According to one embodiment, the conveyor is of the belt conveyor or roller conveyor type.

[0031] According to one embodiment, the position holding devices comprise at least one positioning stop in addition to the fixing clamps. The stop is movable between a rest position, not stressed, and a locking position, during which the stop is constrained by the joinery and stops the joinery in translation. Preferably, the positioning stop comprises a bolt constrained by a spring. When the joinery is loaded into the cutting device, using the aforementioned stop, said stop can be positioned on the conveyor path of the joinery in order to provide an axial locking function for the joinery.

[0032] According to one embodiment, the method comprises, after the step of cutting the glazing, a step of collecting the main portion of the glazing to be recycled, preferably by gravity.

[0033] Advantageously, the step of collecting the main portion of the glazing is prior to the step of cutting the frame, so as to limit the presence of impurities in the main portion of the glazing in pieces.

[0034] According to one embodiment, the main portion of the glazing cut from the joinery is recovered, in the form of cullet, in a first collection bin provided for this purpose. Preferably, the first collection bin is located vertically below the joinery when the joinery is held in position by the cutting device, so that once the main portion of the glazing is cut, it falls by gravity directly into the first collection bin as the step of cutting the glazing is carried out.

[0035] According to one embodiment, the method comprises a step of collecting the frame of the joinery after extraction of the main portion of the glazing, preferably a step of collecting the cut pieces of frame. The joinery thus collected comprises at least the frame and a portion of the glazing remaining linked to the frame by the connecting elements and not being able to be recycled as is.

[0036] Advantageously, after the main portion of the glazing has been collected, a discharge conveyor covers the first collection bin. The holding devices release a portion of the remaining joinery frame, which is then discharged into a second collection bin for collection. In this way, sorting of the collection between the main portion of the glazing on the one hand and the joinery frame on the other hand is guaranteed.

[0037] According to another aspect of the invention, it relates to a device for cutting joinery of the type comprising at least one frame and one glazing, remarkable in that it comprises at least one cutting tool, the cutting device being remarkable in that it is configured to implement the cutting method as described previously.

[0038] Such a cutting device has the advantage of being able to be integrated into a joinery dismantling line. Furthermore, the same cutting tool, preferably a single one, allows the two successive cutting stages of the process to be carried out, namely cutting the glazing on the one hand, and cutting the frame on the other.

[0039] According to one embodiment, the cutting device comprises position holding devices, the position holding devices configured to immobilize the joinery at least during the step of cutting the glazing of the joinery by a cutting tool, the position holding devices preferably comprising horizontal immobilization means and vertical immobilization means.

[0040] According to one embodiment, the position holding devices comprise at least one fixed jaw configured to receive an upright of the joinery as a stop and a movable jaw, the movable jaw comprising a bearing surface configured to locally support vertical forces of the joinery in the cutting position, the movable jaw preferably being configured to move during the cutting step so that a distance between the bearing surface and the cutting tool during the step of cutting the glazing is maintained at a distance less than a predetermined distance.

[0041] According to one embodiment, the vertical immobilization means are configured to vertically grip a single upright of the joinery frame.

[0042] According to one embodiment, the cutting device comprises a main frame comprising: an upper part provided with the cutting tool; an intermediate part delimiting a work area for accommodating the joinery, the intermediate part preferably comprising the devices for holding the joinery in position during the step of cutting the glazing of the joinery by the cutting tool along the frame and at a predetermined distance from said frame; a lower support part, the lower part delimiting an evacuation zone for at least the main portion of the glazing after cutting.

[0043] Such a configuration makes it possible to obtain an optimal size of the cutting device to implement the process.

[0044] According to one embodiment, the lower, intermediate and upper parts are superimposed vertically, the intermediate part being arranged between, preferably interposed between, the lower support part and the upper part. Thus, the cutting device has a compactness facilitating its integration into a joinery dismantling line or in a sorting plant.

[0045] According to one embodiment, the chassis, preferably each of the upper, intermediate and lower parts, has a structural frame composed of crosspieces forming a trellis, preferably metallic. Preferably, the chassis is entirely made of crosspieces, forming profiles, the chassis preferably being surrounded at least in part by a protective casing.

[0046] According to one embodiment: the upper part of the frame comprises a gantry movable relative to the frame on which the cutting tool is mounted, the gantry preferably being movable in translation at least horizontally and vertically; and / or the work area comprises an openwork horizontal support to allow the passage of the main part of the joinery glazing. Preferably, the horizontal support comprises an assembly of profiles; and / or the discharge area is configured to receive at least the first and second collection bins, and preferably the discharge conveyor.

[0047] According to one embodiment, the cutting device comprises a discharge conveyor configured to be located at least partly in the discharge zone of the lower part of the cutting device, the discharge conveyor being movable between: a deployed position in which said discharge conveyor is located at least partly vertically under the work area so as to collect by gravity a first material chosen from the pieces of frame after cutting and the main portion of the glazing after cutting, the first material preferably consisting of the pieces of frame after cutting; and a retracted position in which said discharge conveyor does not obstruct the fall from the work area of a second material, distinct from the first material, chosen from the pieces of frame after cutting and the main portion of the glazing after cutting, the second material preferably consisting of the main portion of the glazing after cutting.

[0048] Such a configuration is particularly simple to set up to allow the separate collection and evacuation of materials among the pieces of frame after cutting and the main portion of the glazing after cutting. This results in a particularly efficient and compact cutting device, i.e. one with reduced space requirements.

[0049] According to one embodiment, the cutting tool comprises at least one saw, preferably a rotary saw. Alternatively or in addition, the cutting tool may comprise at least one laser.

[0050] According to one embodiment, the cutting tool further comprises a metal arm connected to a motor, the arm being able to move in horizontal and vertical directions relative to the working area of the cutting device. This arm may be a multi-axis robotic arm.

[0051] According to one embodiment, the cutting device comprises a control unit for moving the cutting tool according to input data, all or part of the input data being entered manually and / or automatically. BRIEF DESCRIPTION OF THE FIGURES

[0052] Other characteristics and advantages of the invention will emerge from reading the description which follows, with reference to the appended figures, which illustrate: figure 1 : a front isometric perspective view of a cutting device according to one embodiment of the invention; figure 2 : a rear isometric perspective view of the cutting device of the figure 1 ; figure 3 : a side view of the cutting device of the figure 1 ; figure 4 : an isometric perspective view of part of the cutting device of the figure 1 ; Figure 5: an exploded and isometric perspective view of part of the cutting device of the figure 1 ; figure 6 : an isometric perspective view of part of the cutting device of the figure 1 equipped with a collection bin to collect the glass to be recycled; figure 7 : a detailed view of the figure 4 ; figure 8 : a detailed view of the figure 4 ; figure 9 : a detailed view of the cutting device of the figure 1 ; figure 10 : a detailed view of the cutting device of the figure 1 ; figure 11 : a view of the working area of the cutting device of the figure 1 in which a cutting carpentry is located; Figure 12A : a diagram of a carpentry seen from above according to one embodiment; Figure 12B : a diagram of the carpentry of the Figure 12A , sectional view.

[0053] For clarity, identical or similar elements are identified by identical reference signs throughout the figures.

[0054] In the description and claims, for the sake of clarity, the terminology longitudinal, transverse and vertical will be adopted without limitation with reference to the trihedron X, Y, Z indicated in the figures. DETAILED DESCRIPTION OF AN EMBODIMENT

[0055] THE figures 1 to 11 illustrate different figures of a device 100 of cutting a joinery according to the invention.

[0056] The device 100 cutting machine forms a machine tool configured to be able to make cuts on a joinery 10 of the type comprising at least one frame 11 and glazing 12, the joinery then being in an assembled state of the glazing with the frame 11.In fact, when it comes to recycling, the joinery that must be recycled is then in an assembled state, that is to say that the frame 11 and the glazing 12 are integral with each other. The glazing 12 is preferably composed, more preferably made of, glass.

[0057] The device 100 cutting device according to the invention is designed to separate a clean part 12A glass 12 of the frame 11 carpentry 10 assembled to facilitate its recycling. During the process, the clean glass falls into a collection bin, typically a skip, then the remaining part of the woodwork 10 including the frame is evacuated by an evacuation conveyor to another side collection bin.

[0058] The device 100 cutting includes a frame 101 main forming a frame for a cutting tool 20.

[0059] The chassis 101 has a structural frame composed of crosspieces or profiles forming a trellis, preferably metallic. Preferably, the frame 101 has a tubular structure made of metal, for example steel, aluminum or stainless steel.

[0060] The chassis 101 includes height-adjustable feet, which compensate for any difference in height between a high point and a low point of the dock on which the chassis rests. Of course, this configuration is adaptable depending on the location where the device is 100 cutting must be placed. Once the chassis 101 of the device 100 cutting positioned stably on the ground, additional fixing means are used to lock its anchoring and absorb vibrations when using the machine tool.

[0061] The chassis 101is mechanically welded and may have undergone a surface treatment: for example, it may be painted, galvanized or powder-coated. The chassis 101 can be covered with protective elements such as sheets, mesh or plexiglass. In this embodiment, as illustrated in part on the figures 1 , 2 And 3 , the chassis is surrounded by a casing 102 protective covering forming a protective covering and attached to the chassis 101. The crankcase 102 includes in particular metal plates joined together to form an envelope serving to protect the entire device at the same time 100 cutting, but also the user by allowing any possible projectile to be stopped.

[0062] The crankcase 102 also includes windows allowing the user to monitor the progress of the cutting operation. These windows are preferably formed from plexiglass.

[0063] Note that in the figures the casing 102 is represented in cutaway to improve their readability.

[0064] Depending on the needs, the chassis 101 can be equipped with wheels or casters sized according to the usage environments.

[0065] The chassis 101 thus forms a structure of a machine tool configured to delimit at least three parts or sub-assemblies superimposed vertically, among which: an intermediate part 103 delimiting a work area Z2 to accommodate the carpentry 10 to cut; an upper part 105 located vertically above the intermediate part 103 and equipped with the cutting tool 20 ; and a lower part 104 support located vertically below the intermediate part 103, the lower part 104 delimiting an evacuation zoneZ1 of at least one main portion 12A glazing 12 to be recycled after cutting.

[0066] The chassis 101 ensures the structural connection between the different sub-assemblies of the device 100 cutting that are the upper parts 105, intermediate 103 and lower 104.

[0067] The chassis 101 includes a portico 150 movable relative to the frame on which the cutting tool is mounted 20. The portico 150 is supported by the chassis 101. Especially the upper part 105 includes the gantry 150 which is configured to carry the cutting tool 20 and move it in the three dimensions of space. The chassis 101 from the upper part 105 includes gantry attachment points 150, this part of the chassis 101forming a portico chair 150 robotic equipped with the cutting tool 20.

[0068] The portico 150 includes at least one arm 151 connected to a motor, and a saw, here unique, said saw being in particular a rotary saw. The saw is connected to a lower end of the arm 151 (metallic). In addition to tool movement 20 cutting into space, the gantry 150 is configured to pivot the cutting tool 20 around the vertical axis of the metal arm.

[0069] The portico 150 includes actuating and guiding means for moving the cutting tool 20 in the three dimensions of space. For example, the portico 150 here comprises three motors allowing the actuation of worm screws in order to obtain a translation along each of the horizontal axes X, Y and the vertical axis Z. Finally, a separate engine152 is positioned on a cutting tool support 20 to allow its rotation along the vertical axis Z, the cutting tool holder 20 including the arm 151 guide, here single-axis and vertically oriented.

[0070] In the example shown, the cutting tool 20 has a rotary saw 21, in particular a grinder. Alternatively or in addition, it is possible to cut the glazing with other cutting tools 20, for example a laser.

[0071] The intermediate part 103 delimits a work area Z2 to accommodate and cut the carpentry 10 to cut. The cutting device 100 includes an opening 106 side communicating between the exterior and the work area Z2 of the intermediate part 103. This opening 106allows to ensure at least the entrance of a carpentry 10 given in the work area Z2.

[0072] The device 100 cutting includes a support 40 on which the carpentry rests 20 in the work area Z2 during the cutting stage, this support 40 is housed in the intermediate part 103. Furthermore, to ensure the immobilization of the carpentry 10 during the cutting step, the device 100 cutting includes position holding devices 30 comprising horizontal immobilization means and vertical immobilization means. According to this embodiment, the device 100 cutting includes a fixed jaw 31 configured to receive the joinery as a stop 10 and a movable bit 32 for positioning the carpentry 10in relation to the cutting tool, this is to help keep the carpentry in a horizontal position 10. In practice the movable jaw 32 may be used for the sole purpose of participating in support 40 carpentry 10 : in this case its mobility allows the tool to be adapted to a large number of joinery dimensions 10. As an alternative or in addition, the fixed jaws 31 and mobile 32 can horizontally clamp the carpentry 10, including the framework 11 carpentry 10, like jaws. In any case, the fixed bit 31 receives in contact and in abutment one side of the carpentry 10. Fixed and movable jaws 31, 32 extend parallel to each other.

[0073] The movable bit 32 includes a welded assembly, here in aluminum. These elements translate over the entire chassis 101via a transmission system, for example a belt 321, driven by an electric motor 322 (see the figure 8 ). This assembly therefore allows the positioning of the carpentry 10 on the chassis 101, it is then held in position by one or more fixed jaws 31.

[0074] The entire movable jaw 32 is welded onto a plate configured to be moved by the transmission system, namely the belt 321. Other means of transmission can be used in addition or alternatively, for example a worm screw system and / or notched drive (rack, etc.) allowing greater efforts to be implemented and limiting maintenance. The motor 322 associated as well as the transmission system are also fixed on the chassis 101.

[0075] The movable bit 32 includes a support surface42 configured to locally support vertical forces from the carpentry 10 in cutting position, the movable jaw 32 being configured to move during the cutting step so that a distance between the bearing surface 42 and the cutting tool 20 during the glazing cutting stage 12 is kept at a distance less than a predetermined distance. Such a configuration makes it possible to limit a pinching effect of the cutting tool blade 20 through the glazing 12 when cutting. The movement of the movable jaw 32 compared to the fixed bit 31 is a horizontal translation. The fixed and movable jaws 31, 32 extend here parallel to each other regardless of their respective position.

[0076] The device 100 cutting also includes compression means, here grasshoppers 35clamping, for example pneumatic, configured to provide vertical pressure on the woodwork 10, preferably on at least one amount of the frame 11 already leaning on the support 40. The frame 11 is thus vertically enclosed in the work area Z2 and kept fixed at least vertically during a glazing cutting step 12, enclosed between its support 40 and the means of compression 35. The compression means are configured to ensure at least vertical immobilization on a single upright of the frame 11 carpentry 10. This makes it easier to cut the frame. 11 held in a cantilever. In particular, the means of compression, here the grasshoppers 35, are attached to the fixed bit 31 and come, in the immobilization position, to hold the amount of the frame firmly 11which is in contact and in abutment against the fixed jaw 31 which also rests on an angle iron 41 associated. Such a configuration makes it possible to implement the frame cutting step 11 held in cantilever at the level of the amount fixed to the fixed jaw 31. Of course the grasshoppers 35 can be replaced by any other device providing the same function of compressing the associated amount to hold the frame 11 carpentry 10. For example, it may be one or more clamps and / or a compression bar or additional movable jaw translating, for example, vertically to compress said upright between this additional movable jaw and the angle iron. 41 like jaws.

[0077] These vertical immobilization means are configured to vertically clamp a single upright of the joinery frame 10, on the fixed bit side 31,both during the glazing cutting stage 12 carpentry 10, but also during the frame cutting stage 11. So the last piece of frame 11 collected at the end of the frame cutting stage 11 corresponds to the amount of the frame 11 held in cantilever and clamped along the fixed jaw 31 then released by the immobilization means 35 at the end of the frame cutting stage 11.

[0078] The clamping or clamping of the part is ensured by friction on a contact pad 351 of each of the clamps 35 of bridle. This friction of the pads 351 on the frame 11 carpentry 10 in the clamping position also contributes to its horizontal immobilization. This simplifies the horizontal clamping mechanism with the use of two jaws 31, 32 whose movable jaw 32provides a unique support function 40 carpentry and grasshoppers equipped with skates 321 are configured to ensure the clamping or holding in position of the carpentry 10 during the cutting step by the cutting tool 20. The use of compression means 35 ensuring friction against the frame ensures effective immobilization of the woodwork for machining while simplifying the holding devices.

[0079] The grasshoppers 35 are operated by cylinders each controlled remotely synchronously by a control unit 200.

[0080] The support 40 includes support surfaces 41, 42, carried here by angles. In particular, a first support surface 41 is carried by an angle iron attached to the fixed jaw 31 and extending parallel to said fixed jaw 31.The other support surface 42 is carried by an upper surface of the movable jaw 32 but can also be carried by an angle iron attached to the said movable jaw 32. The use of support surfaces 41, 42 discontinuous carried by the fixed and movable jaws 31, 32 allows an intermediate space to be left free 43 for evacuation after machining which will be described below.

[0081] The device 100 cutting includes a conveyor 140 configured to route the carpentry 10 from outside into the work area Z2. In particular, for a cutting process implemented automatically, the conveyor 140 allows the device to be powered 100 cutting in carpentry 10 at regular time intervals or on request in order to carry out the joinery cutting operations 10 on the chain. According to this embodiment the conveyor140 is a gravity roller conveyor type. The rollers may or may not be motorized. If they are motorized, at least some of them may be motorized to ensure the movement of a carpentry 10 data placed on the conveyor 140 to the work area Z2 by limiting the operator's efforts. The conveyor 140 roller gravity includes a table 141 rollers as well as feet 142 adjustable, four in number, and adaptable in height, that is to say each one can adapt to the size of the user.

[0082] The conveyor 140 includes locking means such as pins located on the feet 142 of the conveyor 140 to lock the table height 142.

[0083] The work area Z2 is not equipped with conveyor rollers. However, the conveyor 140is arranged outside the chassis 101 and to the crankcase 102. This makes it easier to handle and maintain and is placed directly in front of the opening. 106. Preferably the conveyor roller located at a proximal end of the conveyor 140 closest to the opening 106 is motorized to ensure the movement of the carpentry into the work area Z2 on the support 40.

[0084] The conveyor 140 defines a conveyance plan PC on which a carpentry rests 10 data, the device 100 cutting being configured so that the conveyor plane PC is located at a height greater than or equal to a work surface Pw defined by the support 40 on which a carpentry rests 10given during the machining operation. The conveyor is oriented so as to convey the joinery axially along a longitudinal axis parallel to a reference longitudinal axis X. Fixed and movable jaws 31, 32 each extend parallel to the longitudinal reference axis X, in the extension of the conveyor 140. Such a configuration makes it easier to move the joinery 10.

[0085] In order to limit the user's efforts, the conveyor 140 can be adjusted in height thanks to its feet 142 and specific positioning so that the conveyor rollers are aligned with or slightly above the bearing surface 42 of the movable jaw 32.

[0086] The conveyor 140 includes brakes to lock the table 141 conveyor. The brakes here allow the conveyor rollers to be blocked 140and can be operated before loading the carpentry 10 in order to facilitate its implementation by a user.

[0087] A stop 44 mobile equips the device 100 cutting to allow the positioning of the carpentry 10 on the support 40 in a cutting or machining position.

[0088] The stop 44 is positioned on the path of the carpentry on its support 40 and is movable between a retracted position in which it does not obstruct the movement of said carpentry 10 and a deployed locking position, during which the stop 44 forms an obstacle to the movement of the carpentry 10 on the support 40. The stop 44 mobile is oriented so as to form a stop to the axial movement of the joinery, in the longitudinal direction parallel to the longitudinal reference axis X.

[0089] In practice, the stop 44 mobile includes a spring-mounted bolt. The bolt is configured to lower when loading the joinery 10 on the support 40 in the work area Z2 then returns to its deployed position to serve as a stop on the translation axis of the joinery 10 when loading it from the conveyor 140 until it is positioned on the support 40.

[0090] According to the invention, once the carpentry 10 positioned on the support 40 and immobilized in the machining position by the position holding devices 30, the device 100 cutting implements a step of cutting the glazing 12 carpentry 10 by the cutting tool 20 along the frame 11 and at a distance d predetermined of said framework 11so as to separate a main portion 12A glazing 12.

[0091] Once a central portion 12A cut glass from the carpentry 10, this cut portion 12A is collected in a first collection bin provided for this purpose (see the figure 6 ). The first collection bin is located vertically below the support 40, so that once the main portion 12A of the cut glazing, it falls by gravity directly into the first collection bin as the glazing cutting step is carried out. The support 40 not being formed by a solid support plane but by support surfaces 41, 42 discontinuous and spaced, a space 43 between the bearing surfaces 41, 42 allows the cut glass to fall 12A in the first bin through this said space 43.

[0092] The chassis 101includes in the lower part 104 a side opening 107 allowing the installation of the first collection bin under the chassis 101 in order to be able to recover the pieces of glass from the cut portion 12A when cutting. This side opening 107 is located on the opposite side longitudinally relative to the chassis 101 at the opening 106 loading the carpentry 10 in the work area Z2.

[0093] Once the main portion 12A cut and collected, the rest of the carpentry 10 remains immobilized in the machining position by the position holding devices 30 notably thanks to the framework 11 held by grasshoppers 35 of bridle. The frame 11 remains assembled and secured to a peripheral portion 12B glazing 12not collected after the first cut and then undergoes a frame cutting step 11 at least by the cutting tool 20 in several pieces.

[0094] During this stage of cutting the frame 11, the pieces are collected as they are collected. For this, the device 100 cutting includes a second conveyor forming a conveyor 160 evacuation. This conveyor 160 evacuation is located in the evacuation zone Z1, located in the lower part 104 support located itself under the intermediate part 103.

[0095] The conveyor 160 evacuation is movable between a deployed position in which it is located vertically below the work area Z2 to collect by gravity the cut frame pieces and a retracted position so that in the retracted position of the conveyor 160evacuation, this does not create an obstacle to the fall of the main portion 12A glazing for recycling. In other words, in the deployed position, the conveyor 160 evacuation covers at least partly the first collection bin, the conveyor 160 evacuation being configured to transport the frame pieces 11 cut to a second collection bin (not shown) separate from the first collection bin. In this embodiment, the conveyor 160 evacuation comprises a belt made of flexible material and laterally connected on either side of a deployment direction to actuating means which comprise for example a motor and a drive by suitable means such as chains and / or belts. The conveyor 160 discharge is oriented so as to convey the cut frame pieces axially along a transverse axis parallel to a reference transverse axisY. So the conveyor 160 evacuation and conveyor 140 arrival are arranged substantially at right angles in the horizontal plane to reduce the size of the machine and facilitate collection. Of course, in an alternative configuration the cutting device 100 can be configured so that the discharge circuits between: on the one hand, the cut glass 12A falling into the first bin; and, on the other hand, the pieces of frame 11 each cut out from pieces of the peripheral portion 12B glazing 12 uncollected collected by the conveyor 160 evacuation and transported to the second collection bin; could also be reversed so that in this case the frame pieces 11 can fall directly into a collection bin and the conveyor 160 evacuation can collect and convey the cut glass 12A to another collection bin.

[0096] THE Figures 12A and 12B illustrate a diagram of a joinery seen from above in an assembled state of the glazing 12 with the frame 11 associated, and surrounding the glazing 12. When cutting the main or central portion 12A glazing 12, the cutting tool 20 makes a cut in the glazing 12 along a cutting path L which runs along the frame 11 at a distance d predetermined from it. The distance d predetermined here is equal to 20 mm.

[0097] Such a distance d carpentry cutting 10 allows to limit the presence of connecting elements in the main portion 12Aof glazing recovered for recycling while collecting the maximum amount of glass with the least impurity.

[0098] The device 100 cutting includes emergency stop buttons to ensure the safety of the machine tool configured to immediately stop the device 100 cutting regardless of the current step.

[0099] The operation of the cutting device will be better understood in light of the following description.

[0100] In an initial step, an operator arranges a carpentry 10 on the conveyor 150 arrival. The carpentry comprising a glazing surrounded by a frame 11 assembled together.

[0101] The device 100 cutting unit includes a control unit 200 allowing the tool to be controlled 100cutting according to input data, all or part of the input data being entered manually and / or predetermined in advance. This control unit is connected to an indicator means 202, here of the colored light type, allowing an operator to be informed of the operating status of the device 100 cutting. For example, a red light indicates an alert state, a yellow light indicates when the machine 100 is in operation, and a green light indicates when the machine is ready for use.

[0102] Are also illustrated on the Figures 12A and 12B different measured dimensions used for these input data, including: A: width of the carpentry 10 resting against the fixed jaw 31. Hinges are not included in this measurement; B: length of the carpentry 10 ; C: width of the left upright of the carpentry 10; D: width of the right upright of the carpentry 10 ; E: width of the lower crosspiece of the carpentry 10 ; F: width of the upper crosspiece of the carpentry 10 ; G: maximum thickness 10.

[0103] So, to determine at least some of the input data, the operator makes measurements of the carpentry 10 and inserts them into the machine program via a command interface 201 of the control unit 200. The command interface 201 forms a human-machine interface. This rating step can be implemented in different ways, alternatively and / or complementary: manually directly through the command interface 201 of the control unit 200, the command interface 201which may conventionally be a touch control screen; and / or upstream of the cutting step, by sensors configured to perform a dimensional reading of the woodwork, at least part of the sensors being able to be furthermore embedded on the head of the cutting tool 20 thus allowing identification during the cutting stage; and / or during the cutting stage, by sensors with real-time identification during the cutting process: such sensors are generally complementary to ensure redundancy of measurements and guarantee the safety of the cutting.

[0104] The opening 106 includes a door formed by a panel, preferably transparent and / or translucent, placed in the continuity of the casing 102 in order to ensure the same protection despite the opening 106.This panel is preferably made of plexiglass material. The opening of this door can be conditioned by certain parameters, such as stopping the cutting tool. 20, this is to ensure the security of the device 100 cutting. Locking means thus block the door in the closed position when the predefined conditions are not met.

[0105] Once the step of rating or dimensioning the carpentry has been carried out, the door of the opening 106 is opened and then the carpentry is inserted into the work area Z2 through the opening 106. Carpentry 10 is inserted until it comes to a stop against the stop 44 mobile wedge.

[0106] The door of opening 106 is then closed, and if necessary locked.

[0107] Position-keeping devices 30 are ordered to immobilize the carpentry 10both horizontally and vertically. The bits 31, 32 as well as grasshoppers 35 clamping devices are thus positioned so as to immobilize and lock the position of the carpentry 10 in the work area Z2.

[0108] Several preparation steps can be implemented beforehand before loading the carpentry onto its support 40 in the work area Z2. For example, during this stage of loading the carpentry 10 in particular, it is appropriate to: remove any accessories that may hinder the passage of the cutting tool 20, for example hooks, ventilation grilles, curtain brackets, etc.; and to remove handles, especially if they protrude from the uprights.

[0109] Preferably, a delay step between the dimensioning step and the step of loading the joinery onto the support 40in the working zone Z2 is implemented, in particular to wait for the end of the movement of the movable jaw 32 carrying the support surface 42 support participant 40 carpentry 10.

[0110] For better immobilization, carpentry 10 can be loaded onto the support 40 in the work area Z2 with the handles facing upwards, fixed jaw side 31 and the hinges on the movable jaw side 32.

[0111] It is advisable to check before the glazing cutting step 12 than carpentry 10 either in abutment against the fixed jaw 31 and resting on the angle iron 41 corresponding to the support 40, along its entire length.

[0112] A step of putting into abutment against the movable stop 44 is then implemented consisting of bringing back the carpentry 10 against the stop 44mobile after it has been lowered to the low position and then repositioned in the deployed position.

[0113] The cutting step control is then driven by the control unit.

[0114] It should be noted that the device 100 The cutting system includes sensors configured to detect predetermined glass categories and, if necessary, adapt cutting parameters based on this data (single or double glazing, tempered glass, laminated glass, etc.). Such detection of the type of glass also makes it possible to check in advance that the collected glass and the intended collection bin correspond, this to ensure that the glass is sorted by glass category.

[0115] Firstly, the cutting step consists of cutting the glazing 12 carpentry 10 by the cutting tool 20 along the frame 11 and at a predetermined distance d from said frame 11so as to separate a main portion 12A glazing 12. This allows only clean glass to be obtained, i.e. cullet. The cutting prevents polluting the contents of the first collection bin, here a skip, with the connecting elements used to fix the glass part 12 to the frame 11.

[0116] Once the glass part is 12A cut, a conveyor belt 160 evacuation deploys into evacuation position under the woodwork 10, between the support 40 of the work area Z2 and the first collection bin, in order to prevent elements from polluting the first collection bin containing pure glass.

[0117] The control tool is then driven to cut the frame 11 carpentry, always assembled with a peripheral edge 12B glazing 12,into several pieces of different sizes according to the user's preference.

[0118] The pieces then fall onto the conveyor belt of the discharge conveyor 160 by gravity effect, which was previously unfolded in the evacuation position.

[0119] Once the cutting is finished into pieces of the frame 11, the conveyor discharges the cut elements into the second collection bin, separate from the first collection bin and located on the side of the device 100 cutting.

[0120] So the discharge conveyor belt 160 is the last cutting operation in carpentry 10. In fact, it allows the evacuation of the frame 11 once the glass is cut. This mat has two positions, the first to recover the frame 11, a second to evacuate the frame. A geared motor 161 ensures the movements between these two positions allowing the frame to fall11 in pieces in the second collection bin positioned beforehand by the user.

[0121] Such a machine tool 100 allows, in addition to collecting relatively pure material or glass, but also to be able to sort the materials to be recycled into the various collection bins. Such an evacuation conveyor 160 modular is particularly advantageous in that it allows the sorting of collected items in a simple and efficient manner.

[0122] Naturally, the invention is described in the foregoing by way of example. It is understood that those skilled in the art are able to carry out different variant embodiments of the invention without departing from the scope of the invention.

[0123] It is emphasized that all features, as they emerge for a person skilled in the art from this description, the drawings and the attached claims, even if they have been specifically described only in relation to other specific features, both individually and in any combinations, may be combined with other features or groups of features disclosed herein, provided that this has not been expressly excluded or that technical circumstances make such combinations impossible or meaningless.

Claims

1. Method for cutting a joinery (10) by a cutting device (100), the joinery (10) being of the type comprising at least one frame (11) and one glazing (12), the method being characterized in that it comprises: - a step of cutting the glazing (12) from the joinery (10) by a cutting tool (20) along the frame (11) and at a predetermined distance (d) from said frame (11) so as to separate a main portion (12A) of the glazing (12) from a peripheral portion (12B) of the glazing secured to the frame (11); and - after the step of cutting the glazing (12), a step of cutting the frame (11) at least by the cutting tool (20) into several pieces.

2. Cutting method according to claim 1, characterized in that the predetermined distance (d) is less than or equal to 100 mm, preferably less than or equal to 50 mm and / or greater than or equal to 5 mm, preferably greater than or equal to 10 mm, for example equal to 20 mm.

3. Cutting method according to claim 1 or 2, characterized in that it comprises, prior to the step of cutting the glazing (12), a step of immobilizing the joinery (10) by position holding devices (30), the position holding devices (30) preferably comprising jaws (31, 32) and / or fixing clamps (35).

4. Cutting method according to claim 3, characterized in that it comprises, prior to the step of immobilizing the joinery (10), a step of conveying the joinery (10) into the cutting device (100) by a conveyor (140).

5. Cutting method according to any one of the preceding claims, characterized in that it comprises, after the step of cutting the glazing (12), a step of collecting the main portion (12A) of the glazing (12), preferably by gravity.

6. Cutting method according to any one of the preceding claims, characterized in thatit comprises a step of collecting the frame (11) from the joinery (10) after extraction of the main portion (12A) of the glazing (12), preferably a step of collecting the cut pieces of frame (11).

7. Device (100) for cutting a joinery (10) of the type comprising at least one frame (11) and one glazing (12), characterized in that it comprises at least one cutting tool (20), the cutting device (100) being characterized in that it is configured to implement the cutting method according to any one of the preceding claims.

8. Cutting device (100) according to the preceding claim, characterized in thatit comprises position holding devices (30), the position holding devices (30) configured to immobilize the joinery (10) at least during the step of cutting the glazing (12) of the joinery (10) by a cutting tool (20), the position holding devices (30) preferably comprising horizontal immobilization means and vertical immobilization means.

9. Cutting device (100) according to the preceding claim, characterized in thatthe position holding devices (30) comprise at least one fixed jaw (31) configured to receive an upright of the joinery in abutment and a movable jaw (32), the movable jaw (32) comprising a bearing surface configured to locally support vertical forces of the joinery (10) in the cutting position, the movable jaw (32) preferably being configured to move during the cutting step so that a distance between the bearing surface and the cutting tool (20) during the step of cutting the glazing (12) is maintained at a distance less than a predetermined distance.

10. Cutting device (100) according to the preceding claim, characterized in that the vertical immobilization means are configured to vertically clamp a single upright of the frame (11) of the joinery (10).

11. Cutting device (100) according to any one of claims 7 to 10, characterized in thatit comprises a main frame (101) comprising: - an upper part (105) provided with the cutting tool (20); - an intermediate part (103) delimiting a working area (Z2) to accommodate the joinery (10); - a lower supporting part (104), the lower part (104) delimiting an evacuation area (Z1) of at least the main portion (12A) of the glazing (12) after cutting.

12. Cutting device (100), according to any one of claims 7 to 11, characterized in thatit comprises a discharge conveyor (160) configured to be located at least partly in the discharge zone (Z1) of the lower part (104) of the cutting device (100), the discharge conveyor (160) being movable between: - a deployed position in which said discharge conveyor is located at least partly vertically under the working zone (Z2) so as to collect by gravity a first material chosen from the pieces of frame (11) after cutting and the main portion (12A) of the glazing (12) after cutting, the first material preferably consisting of the pieces of frame (11) after cutting;and - a retracted position in which said discharge conveyor (160) does not obstruct the fall from the working zone (Z2) of a second material, distinct from the first material, chosen from the pieces of frame (11) after cutting and the main portion (12A) of the glazing (12) after cutting, the second material preferably consisting of the main portion (12A) of the glazing (12) after cutting.; 13. Cutting device (100), according to any one of claims 7 to 12, characterized in that the cutting tool (20) comprises at least one rotary saw (21).

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