WO2016092194A1 - Method for inserting and placing individual wires through a panel - Google Patents
Method for inserting and placing individual wires through a panel Download PDFInfo
- Publication number
- WO2016092194A1 WO2016092194A1 PCT/FR2015/053364 FR2015053364W WO2016092194A1 WO 2016092194 A1 WO2016092194 A1 WO 2016092194A1 FR 2015053364 W FR2015053364 W FR 2015053364W WO 2016092194 A1 WO2016092194 A1 WO 2016092194A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- panel
- wire
- insertion element
- channel
- upstream
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000003780 insertion Methods 0.000 claims description 138
- 230000037431 insertion Effects 0.000 claims description 138
- 238000011144 upstream manufacturing Methods 0.000 claims description 35
- 238000005520 cutting process Methods 0.000 claims description 23
- 230000002787 reinforcement Effects 0.000 claims description 17
- 239000011162 core material Substances 0.000 claims description 14
- 239000002131 composite material Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 9
- 238000009958 sewing Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000010417 needlework Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/24—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/02—Layer formed of wires, e.g. mesh
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/046—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0264—Polyester
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0278—Polyurethane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2607/00—Walls, panels
Definitions
- the invention relates to a method for the insertion and placement of individual son through a panel, and a mechanized device for the implementation of the method.
- wire is meant, in particular a textile yarn obtained from spinning, namely the joining of textile fibers to form a long set.
- the wire may be single-material or multi-material.
- the materials used may be glass, plastics, metallic materials, or others.
- a composite sandwich comprises substantially three planar elements, according to its thickness, namely two skins and a core material, intermediate, conventionally in the form of a panel, closely related to the two skins.
- the core material is conventionally a polyester or polyurethane foam or the like.
- the invention relates more particularly to the field of composite sandwiches whose mechanical performance is improved by the addition of fibrous reinforcements in the direction in the thickness of the core.
- resin is applied to the preform skins / core material: once polymerized, this resin ensures the bonding between the skins / core material interfaces, imprints and coats the textile fibers formed in perforations according to the thickness of the soul, obtaining the fibrous reinforcements.
- the state of the art of composite sandwiches knows reinforcement techniques by inserting flexible threads on the skin / soul preform.
- the known thread insertion techniques are sewing operations through the three materials of the skin / core preform: the fibrous reinforcements of the same line are obtained by the work of the same sewing needle which periodically inserts a thread continuous according to the thickness of the soul and skins.
- the panel is advanced one step and the needle proceeds to a new sewing cycle on an adjacent line.
- Reinforcement techniques are still known for which the fibrous reinforcements are obtained and inserted by needling techniques.
- a series of needles provided with barbs makes it possible to drive fibers according to the thickness of the core.
- the entrained fibers may come from one of the skins, or from a sheet of fibers disposed on one of the two surfaces of the panel.
- seam reinforcement techniques are their very long implementation due to the needle work, and on the contrary needling reinforcement techniques which are of higher rate.
- Another defect in seam reinforcement techniques is that they result in tampering of the skins that are pierced by the sewing needle.
- the main defect of needling techniques is their randomness in that it can not be guaranteed that the barbs of the needles actually cause the fibers: in such a case a quantified presence of fibrous reinforcements in the panel can not be guaranteed, and unlike sewing reinforcement techniques.
- the present invention aims to overcome all or part of the aforementioned disadvantages by providing a method for the insertion and placement of individual son, through a panel that ensures the presence of individual son according to the thickness of the panel .
- the object of the present invention is to provide such a method which can be fully mechanized, and in order to obtain high production yields.
- Another object of the present invention is to propose such a method allowing a great flexibility of use, and in particular an adjustment of the spatial distribution of the individual wires on the panel, or even preferably an adjustment of the inclinations of the individual son with respect to the plane of the panel.
- the position of each of the wire insertions and their inclination at each insertion point can be programmed, allowing custom production by means of robotic and / or automated means.
- the invention relates to a method for insertion and placement of individual wires through a panel, the individual wires each being provided protruding by their free ends on both sides of the panel, said method comprising the following steps :
- a panel is provided, as well as a longitudinal insertion element having a free end,
- a spool of thread is provided and a length section of the thread is unwound, along and in the vicinity of the panel, arranged on a first side of the panel,
- the panel is pierced with said insertion element, by the displacement of said insertion element along its longitudinal axis, from said first side of the panel and through the thickness of the panel, and simultaneously the wire is removed by a urging action of said insertion member on the wire at the free end of said member, and until said insertion member and the wire emerge from the second side of the panel and so as to dispose through the perforation of the panel thus created, an upstream and a downstream strand by reference to a loop of the wire emerging from the second side of the panel,
- the wire is cut at the upstream end, the first side of the panel, and at the loop of the second side of the panel, obtaining a pair of individual wires through the perforation of the panel, constituted by the upstream and downstream strands .
- the method according to the invention makes it possible to have, in each through-hole created, a pair of such individual wires. It is the merit of the Applicant to have brought a solution to this problem which required inventors for many hours of work and many tests.
- an element in the form of a blade is chosen for said insertion element, in particular of constant section at least over its useful length intended to perforate the panel.
- This blade may be a substantially flat element, or may have at least one reinforcing fold, or a curvature, oriented in the longitudinal direction of said insertion element.
- the blade may further comprise, in combination at least one fold and at least one curvature.
- the choice of a blade advantageously makes it possible to create a perforation of small thickness, in the form of a slot, which will make it possible, thanks to the resilience of the panel material, to retain the wire insertion through the friction created, in the perforation, between the material of the panel and the wire insertion.
- the panel may be a low density member for use as a core material in a composite sandwich, typically a polyester or polyurethane foam or the like.
- the perforation action of said insertion element is controlled by an actuator such as a pneumatic cylinder, an electric cylinder or a linear motor.
- the actuator stroke is limited, but nevertheless greater than the thickness dimension of the panel and so as to allow said insertion element to enter the panel material, from the first side of the panel and to come out on the other side of the panel.
- a sufficient actuator stroke, superabundant is chosen and so as to allow inclined insertions, that is to say oriented in directions not perpendicular to the plane of the panel.
- the unwinding step of a section of wire length is controlled by a motorized roller.
- a control electronics then makes it possible to drive this motorized roller, and in such a way as to unroll a section of length of wire of determined dimension.
- this wire length section can be guided and maintained in a guide channel, of direction substantially perpendicular to the axis of the insertion element, positioned just upstream of the insertion element when said element is in retracted position.
- This channel is intended to be traversed by the insertion element when the latter is moved in the direction of insertion and so as to guarantee the outburst of the wire present in this channel, through a lateral opening of the channel.
- a guide duct equipped with a venturi system is disposed between the motorized roller and the guide channel, and allows to guide the wire between these two elements.
- the thrust action on the wire is provided by the edge of the free end of said insertion element.
- the free slice may have a recess for ensuring better grip of the wire.
- said blade has at its free end, an opening and in which the thrust action on the wire is provided, while the length section of the wire through said opening of said insertion member.
- the cutting steps of the loop and the upstream strand are advantageously mechanized, by means of suitable cutting devices.
- the section of the loop emerging from the second side of the panel can be ensured at the end of stroke of said insertion element by said insertion element itself: in such a case said insertion element combines not only a function for perforating the panel, a push element function for the wire, but also a cutting function, at the end of stroke of said insertion element.
- said wire cutting step is performed at the level of the loop, on the one hand, by maintaining the upstream and the downstream strand of the first side of the panel in engagement with mechanical means, and on the other hand, by the pushing action of said insertion member and until the free end of said insertion member intersects the loop of the second side of the panel.
- the section of the wire at the loop can be made by separate cutting means of said insertion element: preferably and in this case is carried out said step of cutting the wire at the loop only once said insertion member removed from said panel.
- robotic and / or automated means are provided so as to enable:
- each wire insertion that is to say of each pair of individual wires
- the inclination according to two degrees of freedom
- the implementation of the method can thus provide for the creation of a digital database comprising for each wire insertion:
- the robotic and / or automated means may be a six-axis robot whose robotic arm manipulates the assembly comprising the insertion element and its actuator, said panel then being held in a fixed support.
- the robotic and / or automated means may be a six-axis robot whose robotic arm manipulates the assembly comprising the insertion element and its actuator, said panel then being held in a fixed support.
- said insertion member is integral with a frame, fixed, via said actuator, the robotic and / or automated means for manipulating the panel according to different positions and different inclinations of the panel relative to said insertion element and building.
- the robot can also be used to manipulate the panel of a loading station, to an unloading station panels.
- it is likely to produce a lower production rate in that the material of the panel can impose limits of acceleration (positive acceleration) and braking (negative acceleration) and in order not to deteriorate the panel during sudden changes in speed. speed.
- the invention also relates to a mechanized device for implementing the method according to the invention, having a self-supporting assembly comprising:
- said insertion element movable along its longitudinal axis with respect to a fixed part of the device
- a channel and wire drive and guide means configured to predispose a wire length section in the channel
- an actuator arranged to move said insertion element along its longitudinal axis in the direction of the thrust through said channel, from a position retracted from said insertion member and to an extended position of said insertion member,
- mechanical means comprising a first jaw adapted to maintain said upstream strand, and a second jaw adapted to maintain the downstream strand and to allow cutting of the loop under the free end thrust action said insertion element,
- the invention also relates to an installation comprising a mechanized device according to the invention and a multi-axis robot, for example a six-axis robot, and in which the self-supporting assembly is carried by the arms of the robot, or alternatively the multi-robot.
- a multi-axis robot for example a six-axis robot
- the self-supporting assembly is carried by the arms of the robot, or alternatively the multi-robot.
- - Axis allows the manipulation of the panel and the self-supporting assembly is integral with a frame.
- FIGS. 1a to 1b show diagrammatically different steps of the method according to the invention, according to a first embodiment
- FIGS. 2a to 2f show schematically different steps of the method according to the invention, and according to a second embodiment
- FIGS. 3 to 5 represent different possible sections of said insertion element;
- FIG. 6 represents in perspective, a mechanized device allowing the implementation of the method according to claim 1,
- FIG. 7a is a view of the device of FIG. 6, along a plane of section passing through the axis of said insertion element,
- Figure 7b is a detail view of Figure 7a.
- the invention relates to a method for the insertion and placement of individual son Fil, Fi2 through a panel P, the individual son being each provided with their free ends, on both sides Cl, C2 of panel P, said method comprising the following steps:
- a panel P is provided, as well as a longitudinal insertion element I, having a free end Ex,
- a coil of wire B is provided and a length section of the wire SL is unfolded, along and in the vicinity of the panel P, arranged on a first side C1 of the panel, the panel P is perforated with said insertion element I, by the displacement of said insertion element I along its longitudinal axis, from said first side C1 of the panel P and through the panel, and simultaneously the wire is removed by a pushing action of said insertion element I on the wire, at the free end Ex of said element, and until said insertion element I and the wire emerge from the second side of the panel C2 and such in order to dispose, through the perforation of the panel thus created, an upstream strand Ba and a downstream strand Bv by reference to a loop Bc of the wire emerging from the second side C2 of the panel,
- the wire is cut at the upstream strand Ba, the first side C1 of the panel P, and at the loop Bc of the second side of the panel C2, obtaining a pair of individual wires Fil, Fi2 through the perforation of the panel , constituted by the upstream and downstream strands Ba, Bv.
- FIG. 1a illustrates the step for which a section of length SL of wire is unwound in the vicinity of the panel, arranged on the first side C1 of the panel.
- the unwinding step of a section of wire length can be controlled by a motorized roller Gm.
- a control electronics then makes it possible to drive this motorized roller Gm, and in such a way as to unroll a section of wire length of determined dimension.
- FIG. 1b illustrates the beginning of the perforation step of the panel, by the insertion element I, from the first side C1 which simultaneously carries the wire of said section of length SL, through the perforation created.
- Figure 1c illustrates the end of the piercing step for which the insertion element I and the wire emerge from the second side C2 of the panel. At the end of this step, there is the presence of a loop Bc, an upstream strand Ba and a downstream strand Bv extending respectively through the perforation created, from the loop Bc.
- FIG. 1d illustrates the cutting operations, respectively of the loop Bc of the second side C2 of the panel and of the upstream beam Ba, of the first side C1 of the panel P.
- the section of the loop Bc emerging from the second side. C2 of the panel is advantageously provided, at the end of travel of said insertion element I by said insertion element itself: according to this embodiment, said insertion element I combines not only a function for the perforation of the panel, a thrust element function for the wire, but also a cutting function at the end of stroke of said insertion element.
- Said thread cutting step is performed at the level of the loop Bc, firstly, by maintaining the upstream strand Ba and the downstream strand Bv of the first side of the panel C1 meshing with mechanical means Me, and secondly by pushing said insertion member I and until the free end of said insertion member I cuts the loop Bc of the second side of the panel P.
- the section of the upstream strand Ba, at the first side C1 of the panel P can be performed by controlled cutting device.
- FIG. 1c illustrates the removal of said insertion element I.
- a pair of individual wires Fil, Fi2 are obtained through the perforation of the panel, constituted by said upstream strands and downstream Ba, Bv.
- Figures 6, 7a and 7b illustrate an embodiment of the mechanized device for implementing the method as previously described in Figures la to le.
- This device 1 has a self-supporting assembly comprising:
- said insertion element I movable along its longitudinal axis with respect to a fixed part of the device
- a channel Ca and wire guiding and driving means configured so as to predispose a length section of wire SL in the channel Ca
- an actuator Ac arranged to move said insertion element I along its longitudinal axis in the direction of the thrust through said channel Ca, from a retracted position of said insertion element I and to an extended position of said element of insertion I,
- - Mechanical means Me comprising a first jaw Mu, M 12 adapted to maintain said upstream strand Ba, and a second jaw M 21 , M 22 adapted to maintain the downstream strand Bv and to allow the cutting of the loop Bc under the pushing action of the free end Ex of said insertion element,
- Step of Figure la A motorized roller Gm drive means of the device allows to unwind a section of wire SL through the channel Ca.
- This channel Ca has a direction substantially perpendicular to the axis of the insertion element I and is positioned just upstream of the insertion element I when said insertion element I is in the retracted position (position illustrated in FIGS. 7a and 7b).
- a guide pipe Cg equipped with a venturi system V is disposed between the motorized roller Gm and the channel Ca, and will ensure the guiding of the wire between the channel Ca and the motorized roller Gm.
- the actuator Ac for example a pneumatic cylinder, makes it possible to move the insertion element I to the thrust.
- said insertion element I preferably in the form of a blade, passes through the channel Ca, its free end Ex carrying the wire through a lateral opening 01. Said insertion element I is then protruding device and its stroke is sufficient to perforate and pass through the panel material.
- Step of Figure ld from a certain stroke of said actuator Ac, a mechanism of the mechanical means Me causes the closure of the first jaw (Mu jaws against the jaw M 12 ) to maintain the upstream strand Ba, and the closing of the second jaw (jaws M 21 against the jaw M 22 ) coming to maintain the downstream strand Bv.
- Said insertion element I continues its course and until the free end Ex of said element I cuts the loop in tension.
- a knife Ct of the cutting system Se is driven and passes through the first jaw M 11; M 12 , thus ensuring the cutting of said upstream strand Ba.
- the two jaws (M 11, M 12 and M 21 , M 22 ) can in practice be constituted by the same fixed part forming the jaws Mu and M 21 and of the same moving part. forming the jaws M 12 and M22, this moving part being controlled at the end of stroke displacement of the insertion element I.
- Step of Figure 1a the actuator Ac is then controlled in the opposite direction to allow the removal of said insertion member, and the opening of the first and second jaw.
- Such an assembly advantageously self-supporting, can be carried by the arm of a multi-axis robot, for example a six-axis robot.
- Such a method as described according to the previous embodiment finds a particular application for flexible son having a limited shear resistance allowing such a mode of cutting the loop by the action of said insert element I.
- FIG. 2a illustrates the step for which a section of length SL of wire in the vicinity of the panel is arranged, arranged on the first side C1 of the panel.
- the unwinding step of a section of wire length is controlled by a motorized roller Gm.
- a control electronics then makes it possible to drive this motorized roller Gm, and in such a way as to unwind a section of length of wire of determined dimension.
- the wire section SL passes through an opening O at the free end of said insertion element I.
- FIG. 2b illustrates the beginning of the step of perforation of the panel, by the insertion element, from the first side C1 which simultaneously carries the wire of said section of length SL, through the perforation.
- Figure 2c illustrates the end of the punching step for which the insertion member I and the wire emerge from the second side C2 of the panel. At the end of this step, there is the presence of a loop Bc, and an upstream strand Ba and a downstream strand Bv extending respectively through the perforation created, from the loop Bc.
- FIG. 2d illustrates the removal of said insertion element.
- a locking rod Tb is inserted in the loop Bc and in such a way as to allow said insertion element I to be removed, leaving in place the wire insertion (that is to say the upstream strand Ba and the downstream strand Bv).
- the wire insertion that is to say the upstream strand Ba and the downstream strand Bv.
- FIG. 2e illustrates the result of the section: a pair of individual wires Fil, Fi2 are obtained through the perforation of the panel, constituted by the upstream and downstream strands Ba, Bv.
- the invention will find particular application in the field of composite materials for the manufacture of composite sandwiches, having two skins, and a core material in the form of a panel, in the intermediate volume between the skins, as well as fibrous reinforcements consisting of said individual son, formed in perforations, according to the thickness of the soul, and connecting the skins.
- the skins can be applied to the two surfaces of the panel intended to form the intermediate core.
- the application of a resin will, once polymerized, to ensure the joining of the skin / soul interfaces, to impregnate the individual son, by joining the free ends of son Fil, Fi2 to said skins.
- the invention also relates to such a composite sandwich obtained according to the process according to the invention.
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
Abstract
The present invention relates to a method for inserting and placing individual wires (Fi1, Fi2) through a panel (P), the individual wires being each provided to project by the free ends thereof from the two sides (C1, C2) of the panel. 10
Description
PROCEDE POUR L'INSERTION ET LA MISE EN PLACE DE FILS INDIVIDUELS PROCESS FOR INSERTING AND SETTING INDIVIDUAL YARNS
AU TRAVERS D'UN PANNEAU THROUGH A PANEL
L'invention concerne un procédé pour l'insertion et la mise en place de fils individuels au travers d'un panneau, ainsi qu'un dispositif mécanisé destiné à la mise en œuvre du procédé. The invention relates to a method for the insertion and placement of individual son through a panel, and a mechanized device for the implementation of the method.
On entend par fil, en particulier un fil textile obtenu du filage, à savoir la réunion de fibres textiles pour former un ensemble long. Le fil peut être mono-matériau ou multi-matériaux. Les matières utilisées peuvent être le verre, les matières plastiques, les matières métalliques, ou autres. By wire is meant, in particular a textile yarn obtained from spinning, namely the joining of textile fibers to form a long set. The wire may be single-material or multi-material. The materials used may be glass, plastics, metallic materials, or others.
L'invention trouvera une application particulière dans le domaine des matériaux composites, plus particulièrement des sandwichs composites. Un sandwich composite comprend sensiblement trois éléments plans, suivant son épaisseur, à savoir deux peaux et un matériau d'âme, intercalaire, classiquement sous forme d'un panneau, intimement lié aux deux peaux. Le matériau d'âme est classiquement une mousse de polyester ou de polyuréthane ou autres. The invention will find particular application in the field of composite materials, more particularly composite sandwiches. A composite sandwich comprises substantially three planar elements, according to its thickness, namely two skins and a core material, intermediate, conventionally in the form of a panel, closely related to the two skins. The core material is conventionally a polyester or polyurethane foam or the like.
L'invention concerne plus particulièrement le domaine des sandwichs composites dont les performances mécaniques sont améliorées par l'ajout de renforts fibreux suivant la direction dans l'épaisseur de l'âme. The invention relates more particularly to the field of composite sandwiches whose mechanical performance is improved by the addition of fibrous reinforcements in the direction in the thickness of the core.
Dans un tel état de la technique, de la résine est appliquée sur la préforme peaux/matériau d'âme : une fois polymérisée cette résine assure la solidarisation entre les interfaces peaux/matériau d'âme, empreigne et enrobe les fibres textiles ménagés dans des perforations suivant l'épaisseur de l'âme, obtenant les renforts fibreux. In such a state of the art, resin is applied to the preform skins / core material: once polymerized, this resin ensures the bonding between the skins / core material interfaces, imprints and coats the textile fibers formed in perforations according to the thickness of the soul, obtaining the fibrous reinforcements.
L'état de la technique des sandwichs composites connaît des techniques de renforcement en insérant des fils souples, sur la préforme peaux/âme. Les techniques d'insertion de fil connues sont des opérations de couture au travers des trois matériaux de la préforme peaux/âme : les renforts fibreux d'une même ligne sont obtenus par le travail d'une même aiguille de couture qui insère périodiquement un fil continu suivant l'épaisseur de l'âme et des peaux. Pour réaliser la ligne de renforts suivante, le panneau est avancé d'un pas et l'aiguille procède à un nouveau cycle de couture sur une ligne adjacente.
On connaît encore des techniques de renforcement pour lesquelles les renforts fibreux sont obtenus et insérés par des techniques d'aiguilletage. Dans une telle technique, une série d'aiguilles munies de barbes permet d'entraîner des fibres suivant l'épaisseur de l'âme. Classiquement, les fibres entraînées peuvent provenir de l'une des peaux, ou encore d'une nappe de fibres disposée sur l'une des deux surfaces du panneau. The state of the art of composite sandwiches knows reinforcement techniques by inserting flexible threads on the skin / soul preform. The known thread insertion techniques are sewing operations through the three materials of the skin / core preform: the fibrous reinforcements of the same line are obtained by the work of the same sewing needle which periodically inserts a thread continuous according to the thickness of the soul and skins. To make the next reinforcement line, the panel is advanced one step and the needle proceeds to a new sewing cycle on an adjacent line. Reinforcement techniques are still known for which the fibrous reinforcements are obtained and inserted by needling techniques. In such a technique, a series of needles provided with barbs makes it possible to drive fibers according to the thickness of the core. Conventionally, the entrained fibers may come from one of the skins, or from a sheet of fibers disposed on one of the two surfaces of the panel.
Le défaut principal des techniques de renforcement par couture est leur très longue mise en œuvre en raison du travail de l'aiguille, et au contraire des techniques de renforcement par aiguilletage qui sont de cadence plus élevée. Un autre défaut des techniques de renforcement par couture est qu'elles entraînent une altération des peaux qui sont percées par l'aiguille de couture. The main defect in seam reinforcement techniques is their very long implementation due to the needle work, and on the contrary needling reinforcement techniques which are of higher rate. Another defect in seam reinforcement techniques is that they result in tampering of the skins that are pierced by the sewing needle.
A l'inverse, le défaut principal des techniques d'aiguilletage est leur caractère aléatoire en ce sens qu'il ne peut être garanti que les barbes des aiguilles entraînent réellement les fibres : dans un tel cas une présence quantifiée des renforts fibreux dans le panneau ne peut être garantie, et au contraire des techniques de renforcement par couture. Conversely, the main defect of needling techniques is their randomness in that it can not be guaranteed that the barbs of the needles actually cause the fibers: in such a case a quantified presence of fibrous reinforcements in the panel can not be guaranteed, and unlike sewing reinforcement techniques.
Dans les deux cas, ces techniques présentent le défaut supplémentaire de ne pas permettre n'importe quelle distribution des renforts fibreux dans le matériau d'âme, ni même n'importe quelle inclinaison des renforts, et en raison des techniques et équipements de couture (ou d'aiguilletage) utilisés pour insérer ces renforts fibreux dans le panneau du matériau d'âme. In both cases, these techniques have the additional defect of not allowing any distribution of fibrous reinforcements in the core material, or even any inclination of the reinforcements, and because of the techniques and equipment of sewing ( or needling) used to insert these fibrous reinforcements into the core material panel.
La présente invention a pour but de pallier tout ou partie aux inconvénients précités en proposant un procédé pour l'insertion et la mise en place de fils individuels, au travers d'un panneau qui garantisse la présence de fils individuels suivant l'épaisseur du panneau. The present invention aims to overcome all or part of the aforementioned disadvantages by providing a method for the insertion and placement of individual son, through a panel that ensures the presence of individual son according to the thickness of the panel .
Plus particulièrement le but de la présente invention est de proposer un tel procédé qui puisse être entièrement mécanisé, et dans le but d'obtenir des rendements de production élevés. More particularly, the object of the present invention is to provide such a method which can be fully mechanized, and in order to obtain high production yields.
Un autre but de la présente invention, au moins selon un mode de réalisation, est de proposer un tel procédé permettant une grande souplesse d'utilisation, et en particulier un réglage de la distribution spatiale des fils individuels sur le panneau, voire
de préférence un réglage des inclinaisons des fils individuels par rapport au plan du panneau. Another object of the present invention, at least according to one embodiment, is to propose such a method allowing a great flexibility of use, and in particular an adjustment of the spatial distribution of the individual wires on the panel, or even preferably an adjustment of the inclinations of the individual son with respect to the plane of the panel.
Ainsi, au moins selon un mode de réalisation avantageux, la position de chacune des insertions filaires et leur inclinaison en chaque point d'insertion pourra être programmée, autorisant une production à façon par l'intermédiaire de moyens robotisés et/ou automatisés. Thus, at least according to an advantageous embodiment, the position of each of the wire insertions and their inclination at each insertion point can be programmed, allowing custom production by means of robotic and / or automated means.
Aussi l'invention concerne un procédé pour l'insertion et la mise en place de fils individuels au travers d'un panneau, les fils individuels étant chacun prévus dépassant par leurs extrémités libres, des deux côtés du panneau, ledit procédé comprenant les étapes suivantes : Also, the invention relates to a method for insertion and placement of individual wires through a panel, the individual wires each being provided protruding by their free ends on both sides of the panel, said method comprising the following steps :
- on prévoit un panneau, ainsi qu'un élément d'insertion, longitudinal, présentant une extrémité libre, a panel is provided, as well as a longitudinal insertion element having a free end,
- on prévoit une bobine de fil et on déroule une section de longueur du fil, le long et au voisinage du panneau, disposé d'un premier côté du panneau, a spool of thread is provided and a length section of the thread is unwound, along and in the vicinity of the panel, arranged on a first side of the panel,
- on perfore le panneau avec ledit élément d'insertion, par le déplacement dudit élément d'insertion selon son axe longitudinal, à partir dudit premier côté du panneau et au travers de l'épaisseur du panneau, et simultanément on emporte le fil par une action de poussée dudit élément d'insertion sur le fil, au niveau de l'extrémité libre dudit élément, et jusqu'à ce que ledit élément d'insertion et le fil ressortent du second côté du panneau et de telle façon à disposer au travers de la perforation du panneau ainsi créée, un brin amont et un brin aval par référence à une boucle du fil ressortant du second côté du panneau, the panel is pierced with said insertion element, by the displacement of said insertion element along its longitudinal axis, from said first side of the panel and through the thickness of the panel, and simultaneously the wire is removed by a urging action of said insertion member on the wire at the free end of said member, and until said insertion member and the wire emerge from the second side of the panel and so as to dispose through the perforation of the panel thus created, an upstream and a downstream strand by reference to a loop of the wire emerging from the second side of the panel,
- on coupe le fil au niveau du brin amont, du premier côté du panneau, et au niveau de la boucle du second côté du panneau, obtenant une paire de fils individuels au travers de la perforation du panneau, constitués par les brins amont et aval. the wire is cut at the upstream end, the first side of the panel, and at the loop of the second side of the panel, obtaining a pair of individual wires through the perforation of the panel, constituted by the upstream and downstream strands .
Le procédé conforme à l'invention permet avantageusement : The process according to the invention advantageously allows:
- l'insertion de manière certaine de fils individuels au travers de perforations du panneau, et contrairement aux techniques d'insertion par aiguilletage qui sont aléatoires, the insertion of individual threads in a certain manner through panel perforations, and contrary to needling insertion techniques which are random,
- des insertions filaires indépendantes (individuelles), et contrairement aux techniques d'insertion par couture pour lesquelles les différentes insertions filaires d'une même ligne appartiennent à un même fil continu, constituées par différentes sections de longueur de ce fil continu.
L'invention est née de la volonté de la présente Demanderesse d'insérer de manière mécanisée des fils individuels suivant l'épaisseur d'un panneau. independent wire insertions (individual), and unlike sewing insertion techniques for which the different wire insertions of the same line belong to the same continuous wire, constituted by different length sections of this continuous wire. The invention arose from the desire of the present Applicant to mechanically insert individual son according to the thickness of a panel.
A l'origine, l'objectif poursuivi par la présente Demanderesse était de savoir comment insérer de manière mécanisée des fils individuels suivant l'épaisseur d'un panneau, et de telle sorte que chaque fil individuel dépasse par ses deux extrémités libres, respectivement des deux côtés du panneau. Originally, the objective pursued by the present Applicant was to know how to mechanically insert individual son according to the thickness of a panel, and so that each individual wire exceeds by its two free ends, respectively two sides of the panel.
Une telle insertion mécanisée de fils individuels est particulièrement ardue en ce qu'il n'existe pas, dans l'état de la technique connue du demandeur, un mécanisme permettant d'apporter une solution à ce problème. Such mechanized insertion of individual threads is particularly difficult in that there is no known mechanism in the state of the art known to the applicant to provide a solution to this problem.
Au final, le procédé selon l'invention permet de disposer, dans chaque perforation traversante créée, une paire de tels fils individuels. Il est du mérite de la Demanderesse d'avoir apporté une solution à ce problème qui a nécessité pour les inventeurs de nombreuses heures de travail et de nombreux essais. In the end, the method according to the invention makes it possible to have, in each through-hole created, a pair of such individual wires. It is the merit of the Applicant to have brought a solution to this problem which required inventors for many hours of work and many tests.
Selon un mode de réalisation, on choisit pour ledit élément d'insertion un élément sous la forme d'une lame, notamment de section constante au moins sur sa longueur utile destinée à perforer le panneau. Cette lame peut être un élément sensiblement plan, ou encore présenter au moins un pli de renfort, ou une courbure, orientée dans la direction longitudinale dudit élément d'insertion. La lame peut encore comprendre, en combinaison au moins un pli et au moins une courbure. Le fait de plier et/ou de courber la lame permet avantageusement de rigidifier ledit élément d'insertion, en particulier d'augmenter sa résistance à la flexion. According to one embodiment, an element in the form of a blade is chosen for said insertion element, in particular of constant section at least over its useful length intended to perforate the panel. This blade may be a substantially flat element, or may have at least one reinforcing fold, or a curvature, oriented in the longitudinal direction of said insertion element. The blade may further comprise, in combination at least one fold and at least one curvature. The fact of folding and / or bending the blade advantageously makes it possible to stiffen said insertion element, in particular to increase its resistance to bending.
Dans tous les cas, que ledit élément d'insertion soit plan, courbe et/ou plié, le choix d'une lame permet avantageusement de créer une perforation de faible épaisseur, sous forme d'une fente, qui permettra grâce à la résilience du matériau du panneau, de retenir l'insertion filaire grâce aux frottements crées, dans la perforation, entre le matériau du panneau et l'insertion filaire. In all cases, whether said insertion element is plane, curved and / or folded, the choice of a blade advantageously makes it possible to create a perforation of small thickness, in the form of a slot, which will make it possible, thanks to the resilience of the panel material, to retain the wire insertion through the friction created, in the perforation, between the material of the panel and the wire insertion.
Le panneau peut être un élément de faible densité destiné à servir de matériau d'âme dans un sandwich composite, typiquement une mousse de polyester ou de polyuréthane ou autre.
Selon un mode de réalisation, l'action de perforation dudit élément d'insertion est commandée par un actionneur tel qu'un vérin pneumatique, un vérin électrique ou encore un moteur linéaire. Dans un tel cas, la course de actionneur est limitée, mais toutefois supérieure à la dimension de l'épaisseur du panneau et de manière à permettre audit élément d'insertion de rentrer dans le matériau du panneau, à partir du premier côté du panneau et de ressortir de l'autre côté du panneau. De préférence, on choisit une course suffisante de actionneur, surabondante, et de manière à permettre des insertions inclinées, c'est-à-dire orientées suivant des directions non perpendiculaires au plan du panneau. The panel may be a low density member for use as a core material in a composite sandwich, typically a polyester or polyurethane foam or the like. According to one embodiment, the perforation action of said insertion element is controlled by an actuator such as a pneumatic cylinder, an electric cylinder or a linear motor. In such a case, the actuator stroke is limited, but nevertheless greater than the thickness dimension of the panel and so as to allow said insertion element to enter the panel material, from the first side of the panel and to come out on the other side of the panel. Preferably, a sufficient actuator stroke, superabundant, is chosen and so as to allow inclined insertions, that is to say oriented in directions not perpendicular to the plane of the panel.
Selon un mode de réalisation, l'étape de déroulement d'une section de longueur de fil est commandée par un galet motorisé. Une électronique de contrôle permet alors de piloter ce galet motorisé, et de manière à dérouler une section de longueur de fil de dimension déterminée. According to one embodiment, the unwinding step of a section of wire length is controlled by a motorized roller. A control electronics then makes it possible to drive this motorized roller, and in such a way as to unroll a section of length of wire of determined dimension.
Eventuellement, cette section de longueur de fil peut être guidée et maintenue dans un canal de guidage, de direction sensiblement perpendiculaire à l'axe de l'élément d'insertion, positionné juste en amont de l'élément d'insertion lorsque ledit élément est en position escamotée. Ce canal est destiné à être traversé par l'élément d'insertion lorsque ce dernier est déplacé dans le sens d'insertion et de manière à garantir l'emportement du fil présent dans ce canal, au travers d'une ouverture latérale du canal. Optionally, this wire length section can be guided and maintained in a guide channel, of direction substantially perpendicular to the axis of the insertion element, positioned just upstream of the insertion element when said element is in retracted position. This channel is intended to be traversed by the insertion element when the latter is moved in the direction of insertion and so as to guarantee the outburst of the wire present in this channel, through a lateral opening of the channel.
Eventuellement, une conduite de guidage équipée d'un système de venturi est disposée entre le galet motorisé et le canal de guidage, et permet d'assurer le guidage du fil entre ces deux éléments. Optionally, a guide duct equipped with a venturi system is disposed between the motorized roller and the guide channel, and allows to guide the wire between these two elements.
Selon un premier mode de réalisation, l'action de poussée sur le fil est assurée par la tranche de l'extrémité libre dudit élément d'insertion. Eventuellement la tranche libre peut présenter une échancrure destinée à assurer une meilleure prise du fil. According to a first embodiment, the thrust action on the wire is provided by the edge of the free end of said insertion element. Optionally the free slice may have a recess for ensuring better grip of the wire.
Selon une autre alternative, ladite lame présente au niveau de son extrémité libre, une ouverture et dans lequel l'action de poussée sur le fil est assurée, alors que la section de longueur du fil traverse ladite ouverture dudit élément d'insertion. According to another alternative, said blade has at its free end, an opening and in which the thrust action on the wire is provided, while the length section of the wire through said opening of said insertion member.
Les étapes de coupe de la boucle et du brin amont sont avantageusement mécanisées, aux moyens de dispositifs de coupe adaptés.
Selon un mode de réalisation avantageux, la coupe de la boucle ressortant du deuxième côté du panneau peut être assurée, en fin de course dudit élément d'insertion par ledit élément d'insertion lui-même : dans un tel cas ledit élément d'insertion combine non seulement une fonction pour la perforation du panneau, une fonction d'élément de poussée pour le fil, mais encore une fonction de coupe, en fin de course dudit élément d'insertion. The cutting steps of the loop and the upstream strand are advantageously mechanized, by means of suitable cutting devices. According to an advantageous embodiment, the section of the loop emerging from the second side of the panel can be ensured at the end of stroke of said insertion element by said insertion element itself: in such a case said insertion element combines not only a function for perforating the panel, a push element function for the wire, but also a cutting function, at the end of stroke of said insertion element.
Ainsi et selon ce mode de réalisation, on réalise ladite étape de coupe du fil au niveau de la boucle, d'une part, en maintenant le brin amont et le brin aval du premier côté du panneau en prise avec des moyens mécaniques, et d'autre part, par l'action de poussée dudit élément d'insertion et jusqu'à ce que l'extrémité libre dudit élément d'insertion sectionne la boucle du second côté du panneau. Thus and according to this embodiment, said wire cutting step is performed at the level of the loop, on the one hand, by maintaining the upstream and the downstream strand of the first side of the panel in engagement with mechanical means, and on the other hand, by the pushing action of said insertion member and until the free end of said insertion member intersects the loop of the second side of the panel.
Selon un autre mode de réalisation, la coupe du fil au niveau de la boucle peut être réalisée par des moyens de coupe distincts dudit élément d'insertion : de préférence et dans ce cas on réalise ladite étape de coupe du fil au niveau de la boucle, seulement une fois ledit élément d'insertion retiré dudit panneau. According to another embodiment, the section of the wire at the loop can be made by separate cutting means of said insertion element: preferably and in this case is carried out said step of cutting the wire at the loop only once said insertion member removed from said panel.
Selon un mode de réalisation, on prévoit des moyens robotisés et/ ou automatisés de manière à permettre : According to one embodiment, robotic and / or automated means are provided so as to enable:
- différents positionnements dudit élément d'insertion par rapport au panneau, different positions of said insertion element with respect to the panel,
- différentes inclinaisons dudit élément d'insertion par rapport au plan du panneau, et de telle sorte à permettre l'insertion d'une pluralité de paires de fils individuels selon une distribution spatiale des points d'insertion paramétrable et selon des inclinaisons réglables. different inclinations of said insertion element with respect to the plane of the panel, and so as to allow the insertion of a plurality of pairs of individual son according to a spatial distribution of the configurable insertion points and adjustable inclinations.
Ainsi les moyens robotisés et/automatisés doivent permettre : Thus the robotic and / automated means must allow:
- un réglage de la position relative dudit élément d'insertion par rapport au panneau, suivant deux directions (non parallèles) du panneau, en « X », et en « Y », an adjustment of the relative position of said insertion element with respect to the panel, in two (non-parallel) directions of the panel, in "X", and in "Y",
- un réglage de l'inclinaison relative dudit élément d'insertion par rapport au plan du panneau, et de préférence suivant deux directions perpendiculaires (non parallèles) à l'axe dudit élément d'insertion. - An adjustment of the relative inclination of said insertion member relative to the plane of the panel, and preferably in two directions perpendicular (non-parallel) to the axis of said insertion member.
De tels moyens robotisés permettront avantageusement de paramétrer : Such robotic means advantageously make it possible to parameterize:
- les positions spatiales en X et en Y, de chaque insertion filaire (c'est à dire de chaque paire de fils individuels) dans le plan du panneau et
- l'inclinaison (suivant deux degrés de liberté) de chaque insertion filaire par rapport au plan du panneau. the spatial positions in X and Y, of each wire insertion (that is to say of each pair of individual wires) in the plane of the panel and the inclination (according to two degrees of freedom) of each wire insertion relative to the plane of the panel.
La mise en œuvre du procédé peut ainsi prévoir la création d'une base de données numérique comprenant pour chaque insertion filaire : The implementation of the method can thus provide for the creation of a digital database comprising for each wire insertion:
- les positions spatiales en X et en Y de l'insertion filaire, suivant les deux directions du panneau, the spatial positions in X and Y of the wire insertion, according to the two directions of the panel,
- l'inclinaison dudit élément d'insertion (suivant deux degrés de liberté) par rapport au plan du panneau. - The inclination of said insertion element (according to two degrees of freedom) relative to the plane of the panel.
Selon un premier mode de réalisation, les moyens robotisés et/ou automatisés peuvent être un robot six-axes dont le bras robotisé manipule l'ensemble comprenant l'élément d'insertion et son actionneur, ledit panneau étant alors maintenu dans un support fixe. Un tel mode de réalisation, permet des cadences élevées en ce que ledit élément d'insertion peut être accéléré et freiné rapidement d'un point d'insertion filaire au point d'insertion suivant. According to a first embodiment, the robotic and / or automated means may be a six-axis robot whose robotic arm manipulates the assembly comprising the insertion element and its actuator, said panel then being held in a fixed support. Such an embodiment allows high rates in that said insertion element can be accelerated and braked rapidly from a wire insertion point to the next insertion point.
Alternativement, ledit élément d'insertion est solidaire d'un bâti, fixe, par l'intermédiaire dudit actionneur, les moyens robotisés et/ou automatisés permettant la manipulation du panneau suivant différentes positions et différentes inclinaisons du panneau par rapport audit élément d'insertion et au bâti. Une telle alternative est avantageuse en ce que le robot peut être utilisé également pour manipuler le panneau d'un poste de chargement, vers un poste de déchargement des panneaux. En revanche, il est susceptible de cadence de production moins élevée en ce que le matériau du panneau peut imposer des limites d'accélération (accélération positive) et de freinage (accélération négative) et afin de ne pas détériorer le panneau lors des brusques changements de vitesse. Alternatively, said insertion member is integral with a frame, fixed, via said actuator, the robotic and / or automated means for manipulating the panel according to different positions and different inclinations of the panel relative to said insertion element and building. Such an alternative is advantageous in that the robot can also be used to manipulate the panel of a loading station, to an unloading station panels. On the other hand, it is likely to produce a lower production rate in that the material of the panel can impose limits of acceleration (positive acceleration) and braking (negative acceleration) and in order not to deteriorate the panel during sudden changes in speed. speed.
L'invention concerne également un dispositif mécanisé destiné à la mise en œuvre du procédé selon l'invention, présentant un ensemble autoportant comportant : The invention also relates to a mechanized device for implementing the method according to the invention, having a self-supporting assembly comprising:
- ledit élément d'insertion, mobile selon son axe longitudinal par rapport à une partie fixe du dispositif, said insertion element, movable along its longitudinal axis with respect to a fixed part of the device,
- un canal et des moyens d'entraînement et de guidage de fils configurés de sorte à prédisposer une section de longueur de fil dans le canal, a channel and wire drive and guide means configured to predispose a wire length section in the channel,
- un actionneur agencé pour déplacer ledit élément d'insertion suivant son axe longitudinal dans le sens de la poussée au travers dudit canal, depuis une position
escamotée dudit élément d'insertion et jusqu'à une position déployée dudit élément d'insertion, an actuator arranged to move said insertion element along its longitudinal axis in the direction of the thrust through said channel, from a position retracted from said insertion member and to an extended position of said insertion member,
- des moyens mécaniques comprenant une première mâchoire apte à assurer le maintien dudit brin amont, et une deuxième mâchoire apte à assurer le maintien du brin aval et de manière à permettre la coupe de la boucle sous l'action de poussée de l'extrémité libre dudit élément d'insertion, mechanical means comprising a first jaw adapted to maintain said upstream strand, and a second jaw adapted to maintain the downstream strand and to allow cutting of the loop under the free end thrust action said insertion element,
- un système de coupe dudit brin amont. a cutting system of said upstream strand.
L'invention concerne encore une installation comprenant un dispositif mécanisé selon l'invention et un robot multi-axes, par exemple un robot six-axes, et dans lequel l'ensemble autoportant est porté par les bras du robot, ou alternativement le robot multi- axes permet la manipulation du panneau et l'ensemble auto-portant est solidaire d'un bâti. The invention also relates to an installation comprising a mechanized device according to the invention and a multi-axis robot, for example a six-axis robot, and in which the self-supporting assembly is carried by the arms of the robot, or alternatively the multi-robot. - Axis allows the manipulation of the panel and the self-supporting assembly is integral with a frame.
L'invention sera mieux comprise à la lecture suivante accompagnée des dessins en annexe parmi lesquels : The invention will be better understood on the following reading accompanied by the appended drawings among which:
- Les figures la à le représentent schématiquement différentes étapes du procédé selon l'invention, selon un premier mode de réalisation, FIGS. 1a to 1b show diagrammatically different steps of the method according to the invention, according to a first embodiment,
- Les figures 2a à 2f représentent schématiquement différentes étapes du procédé selon l'invention, et selon un second mode de réalisation, FIGS. 2a to 2f show schematically different steps of the method according to the invention, and according to a second embodiment,
- Les figures 3 à 5 représentent différentes sections possibles dudit élément d'insertion, - La figure 6 représente en perspective, un dispositif mécanisé permettant la mise en œuvre du procédé selon la revendication 1, FIGS. 3 to 5 represent different possible sections of said insertion element; FIG. 6 represents in perspective, a mechanized device allowing the implementation of the method according to claim 1,
- La figure 7a est une vue du dispositif de la figure 6, selon un plan de coupe passant par l'axe dudit élément d'insertion, FIG. 7a is a view of the device of FIG. 6, along a plane of section passing through the axis of said insertion element,
- La figure 7b est une vue de détail de la figure 7 a. Figure 7b is a detail view of Figure 7a.
Aussi, l'invention concerne un procédé pour l'insertion et la mise en place de fils individuels Fil, Fi2 au travers d'un panneau P, les fils individuels étant chacun prévus dépassant par leurs extrémités libres, des deux côtés Cl, C2 du panneau P, ledit procédé comprenant les étapes suivantes : Also, the invention relates to a method for the insertion and placement of individual son Fil, Fi2 through a panel P, the individual son being each provided with their free ends, on both sides Cl, C2 of panel P, said method comprising the following steps:
- on prévoit un panneau P, ainsi qu'un élément d'insertion I, longitudinal, présentant une extrémité libre Ex, a panel P is provided, as well as a longitudinal insertion element I, having a free end Ex,
- on prévoit une bobine de fil B et on déroule une section de longueur du fil SL, le long et au voisinage du panneau P, disposé d'un premier côté Cl du panneau,
- on perfore le panneau P avec ledit élément d'insertion I, par le déplacement dudit élément d'insertion I selon son axe longitudinal, à partir dudit premier côté Cl du panneau P et au travers du panneau, et simultanément on emporte le fil par une action de poussée dudit élément d'insertion I sur le fil, au niveau de l'extrémité libre Ex dudit élément, et jusqu'à ce que ledit élément d'insertion I et le fil ressortent du second côté du panneau C2 et de telle façon à disposer au travers de la perforation du panneau ainsi créée, un brin amont Ba et un brin aval Bv par référence à une boucle Bc du fil ressortant du second côté C2 du panneau, a coil of wire B is provided and a length section of the wire SL is unfolded, along and in the vicinity of the panel P, arranged on a first side C1 of the panel, the panel P is perforated with said insertion element I, by the displacement of said insertion element I along its longitudinal axis, from said first side C1 of the panel P and through the panel, and simultaneously the wire is removed by a pushing action of said insertion element I on the wire, at the free end Ex of said element, and until said insertion element I and the wire emerge from the second side of the panel C2 and such in order to dispose, through the perforation of the panel thus created, an upstream strand Ba and a downstream strand Bv by reference to a loop Bc of the wire emerging from the second side C2 of the panel,
- on coupe le fil au niveau du brin amont Ba, du premier côté Cl du panneau P, et au niveau de la boucle Bc du second côté du panneau C2, obtenant une paire de fils individuels Fil, Fi2 au travers de la perforation du panneau, constitués par les brins amont et aval Ba, Bv. the wire is cut at the upstream strand Ba, the first side C1 of the panel P, and at the loop Bc of the second side of the panel C2, obtaining a pair of individual wires Fil, Fi2 through the perforation of the panel , constituted by the upstream and downstream strands Ba, Bv.
Un tel procédé est illustré schématiquement selon un premier mode de réalisation des figures la à le. Such a method is illustrated schematically according to a first embodiment of Figures la to le.
La figure la illustre l'étape pour laquelle on déroule une section de longueur SL de fil au voisinage du panneau, disposé du premier côté Cl du panneau. L'étape de déroulement d'une section de longueur de fil peut être commandée par un galet motorisé Gm. Une électronique de contrôle permet alors de piloter ce galet motorisé Gm, et de manière à dérouler une section de longueur de fil de dimension déterminée. FIG. 1a illustrates the step for which a section of length SL of wire is unwound in the vicinity of the panel, arranged on the first side C1 of the panel. The unwinding step of a section of wire length can be controlled by a motorized roller Gm. A control electronics then makes it possible to drive this motorized roller Gm, and in such a way as to unroll a section of wire length of determined dimension.
La figure lb illustre le début de l'étape de perforation du panneau, par l'élément d'insertion I, à partir du premier côté Cl qui emporte simultanément le fil de ladite section de longueur SL, au travers de la perforation créée. La figure le illustre la fin de l'étape de perforation pour laquelle l'élément d'insertion I et le fil ressortent du second côté C2 du panneau. A la fin de cette étape, on constate la présence d'une boucle Bc, un brin amont Ba et d'un brin aval Bv s'étendant respectivement au travers de la perforation créée, à partir de la boucle Bc. FIG. 1b illustrates the beginning of the perforation step of the panel, by the insertion element I, from the first side C1 which simultaneously carries the wire of said section of length SL, through the perforation created. Figure 1c illustrates the end of the piercing step for which the insertion element I and the wire emerge from the second side C2 of the panel. At the end of this step, there is the presence of a loop Bc, an upstream strand Ba and a downstream strand Bv extending respectively through the perforation created, from the loop Bc.
La figure ld illustre les opérations de coupe, respectivement de la boucle Bc du second côté C2 du panneau et du brin amont Ba, du premier côté Cl du panneau P. Selon ce mode de réalisation, la coupe de la boucle Bc ressortant du deuxième côté C2 du panneau est avantageusement assurée, en fin de course dudit élément d'insertion I par ledit élément d'insertion lui-même : selon ce mode de réalisation ledit élément d'insertion I combine non seulement une fonction pour la perforation du panneau, une
fonction d'élément de poussée pour le fil, mais encore une fonction de coupe, en fin de course dudit élément d'insertion. FIG. 1d illustrates the cutting operations, respectively of the loop Bc of the second side C2 of the panel and of the upstream beam Ba, of the first side C1 of the panel P. According to this embodiment, the section of the loop Bc emerging from the second side. C2 of the panel is advantageously provided, at the end of travel of said insertion element I by said insertion element itself: according to this embodiment, said insertion element I combines not only a function for the perforation of the panel, a thrust element function for the wire, but also a cutting function at the end of stroke of said insertion element.
On réalise ladite étape de coupe du fil au niveau de la boucle Bc, d'une part, en maintenant le brin amont Ba et le brin aval Bv du premier côté du panneau Cl en prise avec des moyens mécaniques Me, et d'autre part, par l'action de poussée dudit élément d'insertion I et jusqu'à ce que l'extrémité libre dudit élément d'insertion I sectionne la boucle Bc du second côté du panneau P. Said thread cutting step is performed at the level of the loop Bc, firstly, by maintaining the upstream strand Ba and the downstream strand Bv of the first side of the panel C1 meshing with mechanical means Me, and secondly by pushing said insertion member I and until the free end of said insertion member I cuts the loop Bc of the second side of the panel P.
Comme représentée schématiquement par des ciseaux, la coupe du brin amont Ba, au niveau du premier côté Cl du panneau P peut être réalisée par dispositif de coupe commandé. As schematically represented by scissors, the section of the upstream strand Ba, at the first side C1 of the panel P can be performed by controlled cutting device.
La figure le, successive à la coupe illustre le retrait dudit élément d'insertion I. A la fin de l'étape, on obtient une paire de fils individuels Fil, Fi2 au travers de la perforation du panneau, constitués par lesdits brins amont et aval Ba, Bv. FIG. 1c, following the section, illustrates the removal of said insertion element I. At the end of the step, a pair of individual wires Fil, Fi2 are obtained through the perforation of the panel, constituted by said upstream strands and downstream Ba, Bv.
Les figures 6, 7a et 7b illustrent un mode de réalisation du dispositif mécanisé destiné à la mise en œuvre du procédé tel que précédemment décrit aux figures la à le. Figures 6, 7a and 7b illustrate an embodiment of the mechanized device for implementing the method as previously described in Figures la to le.
Ce dispositif 1 présente un ensemble autoportant comportant : This device 1 has a self-supporting assembly comprising:
- ledit élément d'insertion I, mobile selon son axe longitudinal par rapport à une partie fixe du dispositif, said insertion element I, movable along its longitudinal axis with respect to a fixed part of the device,
- un canal Ca et des moyens de guidage et d'entraînement de fil configurés de sorte à prédisposer une section de longueur de fil SL dans le canal Ca, a channel Ca and wire guiding and driving means configured so as to predispose a length section of wire SL in the channel Ca,
- un actionneur Ac agencé pour déplacer ledit élément d'insertion I suivant son axe longitudinal dans le sens de la poussée au travers dudit canal Ca, depuis une position escamotée dudit élément d'insertion I et jusqu'à une position déployée dudit élément d'insertion I, an actuator Ac arranged to move said insertion element I along its longitudinal axis in the direction of the thrust through said channel Ca, from a retracted position of said insertion element I and to an extended position of said element of insertion I,
- des moyens mécaniques Me comprenant une première mâchoire Mu, M12 apte à assurer le maintien dudit brin amont Ba, et une deuxième mâchoire M21, M22 apte à assurer le maintien du brin aval Bv et de manière à permettre la coupe de la boucle Bc sous l'action de poussée de l'extrémité libre Ex dudit élément d'insertion, - Mechanical means Me comprising a first jaw Mu, M 12 adapted to maintain said upstream strand Ba, and a second jaw M 21 , M 22 adapted to maintain the downstream strand Bv and to allow the cutting of the loop Bc under the pushing action of the free end Ex of said insertion element,
- un système de coupe Se dudit brin amont Ba.
Un tel dispositif fonctionne comme suit : a cutting system Se of said upstream strand Ba. Such a device works as follows:
Etape de la figure la : Un galet motorisé Gm des moyens d'entraînement du dispositif permet de dérouler une section de fil SL au travers du canal Ca. Ce canal Ca présente une direction sensiblement perpendiculaire à l'axe de l'élément d'insertion I et est positionné juste en amont de l'élément d'insertion I lorsque ledit élément d'insertion I est en position escamotée (position illustrée aux figures 7a et 7b). Step of Figure la: A motorized roller Gm drive means of the device allows to unwind a section of wire SL through the channel Ca. This channel Ca has a direction substantially perpendicular to the axis of the insertion element I and is positioned just upstream of the insertion element I when said insertion element I is in the retracted position (position illustrated in FIGS. 7a and 7b).
Une conduite de guidage Cg équipée d'un système de venturi V est disposée entre le galet motorisé Gm et le canal Ca, et permettra d'assurer le guidage du fil entre le canal Ca et le galet motorisé Gm. A guide pipe Cg equipped with a venturi system V is disposed between the motorized roller Gm and the channel Ca, and will ensure the guiding of the wire between the channel Ca and the motorized roller Gm.
Etapes des figures lb et le: l'actionneur Ac, par exemple un vérin pneumatique, permet de déplacer l'élément d'insertion I à la poussée. Lors de cette action, ledit élément d'insertion I, de préférence sous forme d'une lame, traverse le canal Ca, son extrémité libre Ex emportant le fil au travers d'une ouverture latérale 01. Ledit élément d'insertion I est alors saillant du dispositif et sa course est suffisante pour perforer et traverser le matériau du panneau. Steps of FIGS. 1b and 1c: the actuator Ac, for example a pneumatic cylinder, makes it possible to move the insertion element I to the thrust. During this action, said insertion element I, preferably in the form of a blade, passes through the channel Ca, its free end Ex carrying the wire through a lateral opening 01. Said insertion element I is then protruding device and its stroke is sufficient to perforate and pass through the panel material.
Etape de la figure ld : à partir d'une certaine course dudit actionneur Ac, un mécanisme des moyens mécaniques Me provoque la fermeture de la première mâchoire (mors Mu contre le mors M12) venant maintenir le brin amont Ba, et la fermeture de la seconde mâchoire (mors M21 contre le mors M22) venant maintenir le brin aval Bv. Ledit élément d'insertion I poursuit sa course et jusqu'à ce que l'extrémité libre Ex dudit élément I sectionne la boucle en tension. Conjointement, à partir d'une certaine course de l'actionneur un couteau Ct du système de coupe Se est entraîné et traverse la première mâchoire M11 ; M12, assurant ainsi la coupe dudit brin amont Ba. On notera que selon ce mode de réalisation, les deux mâchoires (M11; M12 et M21, M22) peuvent en pratique être constituées d'une même partie fixe formant les mors Mu et M21 et d'une même partie mobile formant les mors M 12 et M22, cette partie mobile étant commandée au déplacement en fin de course de l'élément d'insertion I. Step of Figure ld: from a certain stroke of said actuator Ac, a mechanism of the mechanical means Me causes the closure of the first jaw (Mu jaws against the jaw M 12 ) to maintain the upstream strand Ba, and the closing of the second jaw (jaws M 21 against the jaw M 22 ) coming to maintain the downstream strand Bv. Said insertion element I continues its course and until the free end Ex of said element I cuts the loop in tension. At the same time, starting from a certain stroke of the actuator, a knife Ct of the cutting system Se is driven and passes through the first jaw M 11; M 12 , thus ensuring the cutting of said upstream strand Ba. Note that according to this embodiment, the two jaws (M 11, M 12 and M 21 , M 22 ) can in practice be constituted by the same fixed part forming the jaws Mu and M 21 and of the same moving part. forming the jaws M 12 and M22, this moving part being controlled at the end of stroke displacement of the insertion element I.
Etape de la figure le : l'actionneur Ac est ensuite commandé en sens inverse afin de permettre le retrait dudit élément d'insertion, et l'ouverture des première et seconde mâchoire.
Un tel ensemble, avantageusement autoportant, peut être porté par le bras d'un robot multi-axes, par exemple un robot six-axes. Step of Figure 1a: the actuator Ac is then controlled in the opposite direction to allow the removal of said insertion member, and the opening of the first and second jaw. Such an assembly, advantageously self-supporting, can be carried by the arm of a multi-axis robot, for example a six-axis robot.
Un tel procédé tel que décrit selon le mode de réalisation précédent trouve une application particulière pour des fils souples présentant une résistance au cisaillement limitée autorisant un tel mode de coupe de la boucle par l'action dudit élément d'insertion I. Such a method as described according to the previous embodiment finds a particular application for flexible son having a limited shear resistance allowing such a mode of cutting the loop by the action of said insert element I.
Pour des fils souples présentant une résistance au cisaillement plus élevée, le mode de réalisation du procédé des figures 2a à 2f peut être avantageux. For flexible yarns having higher shear strength, the embodiment of the method of Figures 2a-2f may be advantageous.
La figure 2a illustre l'étape pour laquelle on déroule une section de longueur SL de fil au voisinage du panneau, disposé du premier côté Cl du panneau. L'étape de déroulement d'une section de longueur de fil est commandée par un galet motorisé Gm. Une électronique de contrôle permet alors de piloter ce galet motorisée Gm, et de manière à dérouler une section de longueur de fil de dimension déterminée. De manière caractéristique, la section de fil SL traverse une ouverture O au niveau de l'extrémité libre dudit élément d'insertion I. FIG. 2a illustrates the step for which a section of length SL of wire in the vicinity of the panel is arranged, arranged on the first side C1 of the panel. The unwinding step of a section of wire length is controlled by a motorized roller Gm. A control electronics then makes it possible to drive this motorized roller Gm, and in such a way as to unwind a section of length of wire of determined dimension. Typically, the wire section SL passes through an opening O at the free end of said insertion element I.
La figure 2b illustre le début de l'étape de perforation du panneau, par l'élément d'insertion, à partir du premier côté Cl qui emporte simultanément le fil de ladite section de longueur SL, au travers de la perforation. La figure 2c illustre la fin de l'étape de perforation pour laquelle l'élément d'insertion I et le fil ressortent du second côté C2 du panneau. A la fin de cette étape, on constate la présence d'une boucle Bc, et d'un brin amont Ba et d'un brin aval Bv s'étendant respectivement au travers de la perforation créée, à partir de la boucle Bc. FIG. 2b illustrates the beginning of the step of perforation of the panel, by the insertion element, from the first side C1 which simultaneously carries the wire of said section of length SL, through the perforation. Figure 2c illustrates the end of the punching step for which the insertion member I and the wire emerge from the second side C2 of the panel. At the end of this step, there is the presence of a loop Bc, and an upstream strand Ba and a downstream strand Bv extending respectively through the perforation created, from the loop Bc.
La figure 2d illustre le retrait dudit élément d'insertion. Préalablement une tige de blocage Tb est insérée dans la boucle Bc et de manière à permettre le retrait dudit élément d'insertion I, en laissant en place l'insertion filaire (c'est à dire le brin amont Ba et le brin aval Bv). Comme représenté schématiquement à la figure 2e par des ciseaux, une fois l'élément d'insertion I retiré, on procède par tout dispositif de coupe adapté, à la coupe de la boucle Bc, du deuxième côté C2 du panneau P et à la coupe du brin amont du premier côté Cldu panneau.
La figure 2e, illustre le résultat de la coupe : on obtient une paire de fils individuels Fil, Fi2 au travers de la perforation du panneau, constitués par les brins amont et aval Ba, Bv. Figure 2d illustrates the removal of said insertion element. Beforehand, a locking rod Tb is inserted in the loop Bc and in such a way as to allow said insertion element I to be removed, leaving in place the wire insertion (that is to say the upstream strand Ba and the downstream strand Bv). . As shown diagrammatically in FIG. 2e by scissors, once the insertion element I has been removed, one proceeds by any suitable cutting device, to the section of the loop Bc, the second side C2 of the panel P and to the section from the upstream end of the first side of the panel. FIG. 2e illustrates the result of the section: a pair of individual wires Fil, Fi2 are obtained through the perforation of the panel, constituted by the upstream and downstream strands Ba, Bv.
L'invention trouvera une application particulière dans le domaine des matériaux composite pour la fabrication de sandwichs composites, présentant deux peaux, ainsi qu'un matériau d'âme sous la forme d'un panneau, dans le volume intercalaire entre les peaux, ainsi que des renforts fibreux constitués par lesdits fils individuels, ménagés dans des perforations, suivant l'épaisseur de l'âme, et reliant les peaux. The invention will find particular application in the field of composite materials for the manufacture of composite sandwiches, having two skins, and a core material in the form of a panel, in the intermediate volume between the skins, as well as fibrous reinforcements consisting of said individual son, formed in perforations, according to the thickness of the soul, and connecting the skins.
Ainsi, et une fois les fils individuels insérés et ménagés dans les perforations du panneau selon le procédé de l'invention, les peaux pourront être appliquées sur les deux surfaces du panneau destiné à constituer l'âme intercalaire. L'application d'une résine permettra, une fois polymérisée, d'assurer la solidarisation des interfaces peaux/âmes, d'imprégner les fils individuels, en solidarisant les extrémités libres des fils Fil, Fi2 auxdites peaux. L'invention concerne encore un tel sandwich composite obtenu selon le procédé selon l'invention.
Thus, and once the individual son inserted and formed in the perforations of the panel according to the method of the invention, the skins can be applied to the two surfaces of the panel intended to form the intermediate core. The application of a resin will, once polymerized, to ensure the joining of the skin / soul interfaces, to impregnate the individual son, by joining the free ends of son Fil, Fi2 to said skins. The invention also relates to such a composite sandwich obtained according to the process according to the invention.
NOMENCLATURE NOMENCLATURE
B. Bobine de fil, B. Coil of wire,
Ba. Brin amont, Ba. Upstream strand,
Bv. Brin aval, Bv. Downstream strand,
Bc. Boucle de fil (ressortant du deuxième côté C2 du panneau), Ca. Canal, Bc. Loop of wire (coming from the second side C2 of the panel), Ca. Canal,
Cg. Conduite de guidage, Cg. Guide line,
Ct. Couteau, Ct. Knife,
Cl. Premier côté du panneau, Cl. First side of the panel,
C2. Deuxième côté du panneau, C2. Second side of the panel,
Ex. Extrémité libre (Elément d'insertion), Ex. Free End (Insertion Element),
Gm. Galet motorisé, Gm. Motorized roller
I. Elément d'insertion, I. Insertion element,
Me. Moyens mécaniques, Me. Mechanical means,
Mu, Mi2. Mors de la première mâchoire, Mu, Mi 2 . Bite of the first jaw,
M21, M22. Mors de la seconde mâchoire, M 21 , M 22 . Jaw of the second jaw,
P. Panneau, P. Panel,
SL. Section de longueur de fil, SL. Wire length section,
St. Système de coupe (brin amont), St. Cutting System (upstream strand),
Tb. Tige de blocage, Tb. Locking rod,
V. Venturi, V. Venturi,
Ac. Actionneur, Ac. actuator,
Bm. Brin amont.
Bm. Upper strand.
Claims
1. Procédé pour l'insertion et la mise en place de fils individuels (Fil, Fi2) au travers d'un panneau (P), les fils individuels étant chacun prévus dépassant par leurs extrémités libres, des deux côtés (Cl, C2) du panneau (P), ledit procédé comprenant les étapes suivantes : 1. Method for inserting and placing individual wires (Wire, Fi2) through a panel (P), the individual wires each being provided protruding by their free ends, on both sides (C1, C2) of the panel (P), said method comprising the following steps:
- on prévoit un panneau (P), ainsi qu'un élément d'insertion (I), longitudinal, présentant une extrémité libre (Ex), a panel (P) is provided, as well as a longitudinal insertion element (I) having a free end (Ex),
- on prévoit une bobine de fil (B) et on déroule une section de longueur du fil (SL), le long et au voisinage du panneau (P), disposé d'un premier côté (Cl) du panneau, a spool of thread (B) is provided and a length section of the yarn (SL) is unwound, along and in the vicinity of the panel (P), arranged on a first side (Cl) of the panel,
- on perfore le panneau (P) avec ledit élément d'insertion (I), par le déplacement dudit élément d'insertion (I) selon son axe longitudinal, à partir dudit premier côté (Cl) du panneau (P) et au travers du panneau, et simultanément on emporte le fil par une action de poussée dudit élément d'insertion (I) sur le fil, au niveau de l'extrémité libre (Ex) dudit élément, et jusqu'à ce que ledit élément d'insertion (I) et le fil ressortent du second côté du panneau (C2) et de telle façon à disposer au travers de la perforation du panneau ainsi créée, un brin amont (Ba) et un brin aval (Bv) par référence à une boucle (Bc) du fil ressortant du second côté (C2) du panneau, the panel (P) is perforated with said insertion element (I), by the displacement of said insertion element (I) along its longitudinal axis, from said first side (C1) of the panel (P) and through of the panel, and simultaneously the wire is carried by a pushing action of said insertion element (I) on the wire, at the free end (Ex) of said element, and until said insertion element (I) and the wire emerge from the second side of the panel (C2) and so as to dispose through the perforation of the panel thus created, an upstream strand (Ba) and a downstream strand (Bv) with reference to a loop ( Bc) of the wire emerging from the second side (C2) of the panel,
- on coupe le fil au niveau du brin amont (Ba), du premier côté (Cl) du panneau (P), et au niveau de la boucle (Bc) du second côté du panneau (C2), obtenant une paire de fils individuels (Fil, Fi2) au travers de la perforation du panneau, constitués par les brins amont et aval (Ba, Bv). the wire is cut at the level of the upstream strand (Ba), the first side (Cl) of the panel (P), and at the level of the loop (Bc) of the second side of the panel (C2), obtaining a pair of individual wires (Wire, Fi2) through the perforation of the panel, consisting of the upstream and downstream strands (Ba, Bv).
2. Procédé selon la revendication 1, dans lequel on choisit pour ledit élément d'insertion (I) un élément sous la forme d'une lame. 2. Method according to claim 1, wherein one chooses for said insertion element (I) an element in the form of a blade.
3. Procédé selon la revendication 2, dans lequel la lame présente au moins un pli de renfort, et/ou une courbure, orientée dans la direction longitudinale dudit élément d'insertion (I). 3. Method according to claim 2, wherein the blade has at least one reinforcing ply, and / or a curvature, oriented in the longitudinal direction of said insertion element (I).
4. Procédé selon la revendication 2 ou 3, dans lequel l'action de poussée sur le fil est assurée par la tranche de l'extrémité libre (Ex) dudit élément d'insertion (I).
4. Method according to claim 2 or 3, wherein the thrust action on the wire is provided by the edge of the free end (Ex) of said insertion element (I).
5. Procédé selon la revendication 2 ou 3, dans lequel ladite lame présente au niveau de son extrémité libre, une ouverture (O), et dans lequel l'action de poussée sur le fil est assurée alors que la section de longueur du fil (SL) traverse ladite ouverture (O) dudit élément d'insertion. 5. Method according to claim 2 or 3, wherein said blade has at its free end, an opening (O), and in which the thrust action on the wire is provided while the length section of the wire ( SL) passes through said opening (O) of said insertion element.
6. Procédé selon l'une des revendications 1 à 5, dans lequel on réalise ladite étape de coupe du fil au niveau de la boucle (Bc), d'une part, en maintenant le brin amont (Ba) et le brin aval (Bv) du premier côté du panneau (Cl) en prise avec des moyens mécaniques (Me), et d'autre part, par l'action de poussée dudit élément d'insertion (I) et jusqu'à ce que l'extrémité libre dudit élément d'insertion (I) sectionne la boucle (Bc) du second côté du panneau (P). 6. Method according to one of claims 1 to 5, wherein said wire cutting step is performed at the level of the loop (Bc), firstly, while maintaining the upstream strand (Ba) and the downstream strand ( Bv) on the first side of the panel (C1) engaged with mechanical means (Me), and on the other hand, by the pushing action of said insertion element (I) and until the free end said insertion element (I) cuts off the loop (Bc) of the second side of the panel (P).
7. Procédé selon l'une des revendications 1 à 5, dans lequel on réalise ladite étape de coupe du fil au niveau de la boucle (Bc), seulement une fois ledit élément d'insertion (I) retiré dudit panneau. 7. Method according to one of claims 1 to 5, wherein said wire cutting step is performed at the loop (Bc), only once said insertion member (I) removed from said panel.
8. Procédé selon l'une des revendications 1 à 7, dans lequel l'action de perforation dudit élément d'insertion est commandée par un actionneur tel qu'un vérin pneumatique ou électrique ou encore un moteur linéaire. 8. Method according to one of claims 1 to 7, wherein the perforation action of said insertion member is controlled by an actuator such as a pneumatic or electric cylinder or a linear motor.
9. Procédé selon l'une des revendications 1 à 8, dans lequel l'étape de déroulement d'une section de longueur de fil (SL) est commandée par un galet motorisé (Gm). 9. Method according to one of claims 1 to 8, wherein the unwinding step of a wire length section (SL) is controlled by a motorized roller (Gm).
10. Procédé selon l'une des revendications 1 à 9, dans lequel la section de longueur de fil est guidée et maintenue dans un canal (Ca), de guidage, de direction sensiblement perpendiculaire à l'axe de l'élément d'insertion (I), ledit canal (Ca) étant positionné juste en amont de l'outil d'insertion lorsque ledit élément d'insertion (I) est en position escamotée, ledit canal (Ca) étant destiné à être traversé par l'élément d'insertion (I) lorsque ce dernier est déplacé dans le sens d'insertion et de manière à emporter le fil présent dans le canal au travers d'une ouverture latérale (01) du canal.
The method according to one of claims 1 to 9, wherein the wire length section is guided and held in a guide channel (Ca) of direction substantially perpendicular to the axis of the insertion element. (I), said channel (Ca) being positioned just upstream of the insertion tool when said insertion element (I) is in the retracted position, said channel (Ca) being intended to be traversed by the element d insertion (I) when the latter is moved in the direction of insertion and so as to take the wire present in the channel through a lateral opening (01) of the channel.
11. Procédé selon l'une des revendications 1 à 10, dans lequel on prévoit des moyens robotisés et/ ou automatisés de manière à permettre : 11. Method according to one of claims 1 to 10, wherein there is provided robotic means and / or automated to allow:
- différents positionnements dudit élément d'insertion (I) par rapport au panneau (P), different positions of said insertion element (I) with respect to the panel (P),
- différentes inclinaisons dudit élément d'insertion par rapport au plan du panneau (P) et de telle sorte à permettre l'insertion d'une pluralité de paires de fils individuels (Fil, F2) selon une distribution spatiale des points d'insertion paramétrable et selon des inclinaisons réglables. different inclinations of said insertion element relative to the plane of the panel (P) and in such a way as to allow the insertion of a plurality of pairs of individual wires (Wire, F2) according to a spatial distribution of the configurable insertion points and according to adjustable inclinations.
12. Procédé selon la revendication 9 et 10, dans lequel : The method of claim 9 and 10, wherein:
- ledit élément d'insertion (I) et son actionneur (Ac) sont solidaires d'un bâti, said insertion element (I) and its actuator (Ac) are integral with a frame,
- les moyens robotisés et/ou automatisés permettent la manipulation du panneau (P) suivant différentes positions et différentes inclinaisons du panneau par rapport audit élément d'insertion. - The robotic and / or automated means allow the manipulation of the panel (P) in different positions and different inclinations of the panel relative to said insertion element.
13. Dispositif mécanisé destiné à la mise en œuvre du procédé selon la revendication 6, présentant un ensemble autoportant (1) comportant : 13. Mechanized device for implementing the method according to claim 6, having a self-supporting assembly (1) comprising:
- ledit élément d'insertion (I), mobile selon son axe longitudinal par rapport à une partie fixe du dispositif, said insertion element (I), movable along its longitudinal axis with respect to a fixed part of the device,
- un canal (Ca) et des moyens de guidage et d'entraînement de fils configurés de sorte à prédisposer une section de longueur de fil (SL) dans le canal (Ca), a channel (Ca) and wire guiding and driving means configured to predispose a wire length section (SL) in the channel (Ca),
- un actionneur (Ac) agencé pour déplacer ledit élément d'insertion (I) suivant son axe longitudinal dans le sens de la poussée au travers dudit canal (Ca), depuis une position escamotée dudit élément d'insertion (I) et jusqu'à une position déployée dudit élément d'insertion (I), an actuator (Ac) arranged to move said insertion element (I) along its longitudinal axis in the direction of the thrust through said channel (Ca), from a retracted position of said insertion element (I) and up to at an extended position of said insertion element (I),
- des moyens mécaniques (Me) comprenant une première mâchoire (Mu, M12) apte à assurer le maintien dudit brin amont (Ba), et une deuxième mâchoire (M21, M22) apte à assurer le maintien du brin aval (Bv) et de manière à permettre la coupe de la boucle (Bc) sous l'action de poussée de l'extrémité libre (Ex) dudit élément d'insertion,- Mechanical means (Me) comprising a first jaw (Mu, M 12 ) adapted to maintain said upstream strand (Ba), and a second jaw (M 21 , M 22 ) adapted to maintain the downstream strand (Bv ) and to allow the cutting of the loop (Bc) under the pushing action of the free end (Ex) of said insertion element,
- un système de coupe (Se) dudit brin amont (Bm), a cutting system (Se) of said upstream strand (Bm),
dans lequel la section de longueur de fil (SL) est guidée et maintenue dans ledit canal (Ca) de direction sensiblement perpendiculaire à l'axe de l'élément d'insertion (I), ledit canal (Ca) étant positionné juste en amont de l'outil d'insertion lorsque ledit élément
d'insertion (I) est en position escamotée, ledit canal (Ca) étant destiné à être traversé par l'élément d'insertion (I) lorsque ce dernier est déplacé dans le sens d'insertion et de manière à emporter le fil présent dans le canal au travers d'une ouverture latérale (01) du canal. wherein the wire length section (SL) is guided and maintained in said directional channel (Ca) substantially perpendicular to the axis of the insertion element (I), said channel (Ca) being positioned just upstream of the insertion tool when said element insertion device (I) is in the retracted position, said channel (Ca) being intended to be traversed by the insertion element (I) when the latter is moved in the direction of insertion and so as to carry the present wire in the channel through a lateral opening (01) of the channel.
14. Installation comprenant un dispositif mécanisé selon la revendication 13, et un robot multi-axes, par exemple un robot six-axes, et dans lequel l'ensemble autoportant est porté par le bras du robot, ou alternativement le robot multi-axes permet la manipulation du panneau et l'ensemble autoportant est solidaire d'un bâti. 14. Installation comprising a mechanized device according to claim 13, and a multi-axis robot, for example a six-axis robot, and wherein the self-supporting assembly is carried by the robot arm, or alternatively the multi-axis robot allows the manipulation of the panel and the self-supporting assembly is integral with a frame.
15. Utilisation du procédé selon l'une des revendications 1 à 12, du dispositif selon la revendication 13 ou 14, dans le domaine des matériaux composite pour réaliser des insertions filaires dans un panneau destiné à la fabrication de sandwichs composites, présentant deux peaux, ainsi qu'un matériau d'âme sous la forme dudit panneau (P), dans le volume intercalaire entre les peaux, ainsi que des renforts fibreux constitués par lesdits fils individuels, ménagés dans des perforations suivant l'épaisseur de l'âme destinés à relier les peaux. 15. Use of the method according to one of claims 1 to 12, the device according to claim 13 or 14, in the field of composite materials for making wired insertions in a panel for the manufacture of composite sandwiches, having two skins, as well as a core material in the form of said panel (P), in the intermediate volume between the skins, as well as fibrous reinforcements constituted by said individual threads, formed in perforations according to the thickness of the core intended for connect the skins.
16. Sandwich composite issu de l'utilisation selon la revendication 15.
16. Composite sandwich resulting from the use according to claim 15.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1462204 | 2014-12-10 | ||
FR1462204A FR3029834B1 (en) | 2014-12-10 | 2014-12-10 | PROCESS FOR INSERTING AND PLACING INDIVIDUAL YARNS THROUGH A PANEL |
Publications (1)
Publication Number | Publication Date |
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WO2016092194A1 true WO2016092194A1 (en) | 2016-06-16 |
Family
ID=52450480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2015/053364 WO2016092194A1 (en) | 2014-12-10 | 2015-12-07 | Method for inserting and placing individual wires through a panel |
Country Status (2)
Country | Link |
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FR (1) | FR3029834B1 (en) |
WO (1) | WO2016092194A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3470214A1 (en) * | 2017-10-10 | 2019-04-17 | Groz-Beckert KG | Device and method for the preparation of a carrier having multiple fibre bundles |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3098444B1 (en) | 2019-07-08 | 2021-10-01 | Soc Internationale Pour Le Commerce Et Lindustrie | A method of reinforcing a panel and a method of manufacturing a composite panel implementing such a method |
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US20050006023A1 (en) * | 2001-04-06 | 2005-01-13 | Johnson David W. | Method of inserting z-axis reinforcing fibers into a composite laminate |
EP1642702A2 (en) * | 2001-08-02 | 2006-04-05 | Ebert Composites Corporation | Method of clinching top and bottom ends of Z-axis fibers into the respective top and bottom surfaces of a composite laminate |
US20090252917A1 (en) * | 2005-05-27 | 2009-10-08 | Airbus Deutschland Gmbh | Reinforcement of cellular materials |
-
2014
- 2014-12-10 FR FR1462204A patent/FR3029834B1/en not_active Expired - Fee Related
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2015
- 2015-12-07 WO PCT/FR2015/053364 patent/WO2016092194A1/en active Application Filing
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US20050006023A1 (en) * | 2001-04-06 | 2005-01-13 | Johnson David W. | Method of inserting z-axis reinforcing fibers into a composite laminate |
EP1642702A2 (en) * | 2001-08-02 | 2006-04-05 | Ebert Composites Corporation | Method of clinching top and bottom ends of Z-axis fibers into the respective top and bottom surfaces of a composite laminate |
US20090252917A1 (en) * | 2005-05-27 | 2009-10-08 | Airbus Deutschland Gmbh | Reinforcement of cellular materials |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3470214A1 (en) * | 2017-10-10 | 2019-04-17 | Groz-Beckert KG | Device and method for the preparation of a carrier having multiple fibre bundles |
WO2019072641A1 (en) * | 2017-10-10 | 2019-04-18 | Groz-Beckert Kommanditgesellschaft | Device and method for producing a carrier part having a plurality of fibre bundles |
US10858771B2 (en) | 2017-10-10 | 2020-12-08 | Groz-Beckert Kg | Device and method for producing a carrier part having a plurality of fiber bundles |
JP2020537059A (en) * | 2017-10-10 | 2020-12-17 | グロツ・ベッケルト コマンディートゲゼルシャフト | Equipment and Methods for Manufacturing Carrier Members with Multiple Fiber Bundles |
RU2762030C2 (en) * | 2017-10-10 | 2021-12-14 | Гроц-Беккерт Коммандитгезелльшафт | Device and method for manufacturing carrying element equipped with set of fiber bundles |
JP7220016B2 (en) | 2017-10-10 | 2023-02-09 | グロツ・ベッケルト コマンディートゲゼルシャフト | Apparatus and method for manufacturing a carrier member with a plurality of fiber bundles |
Also Published As
Publication number | Publication date |
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FR3029834B1 (en) | 2019-06-07 |
FR3029834A1 (en) | 2016-06-17 |
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