WO2016042215A1 - Device for obtaining and cutting a sheet - Google Patents

Device for obtaining and cutting a sheet Download PDF

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Publication number
WO2016042215A1
WO2016042215A1 PCT/FR2014/052286 FR2014052286W WO2016042215A1 WO 2016042215 A1 WO2016042215 A1 WO 2016042215A1 FR 2014052286 W FR2014052286 W FR 2014052286W WO 2016042215 A1 WO2016042215 A1 WO 2016042215A1
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WO
WIPO (PCT)
Prior art keywords
data
cutting
processing unit
cutting head
portable
Prior art date
Application number
PCT/FR2014/052286
Other languages
French (fr)
Inventor
Eric Ganci
Original Assignee
Eric Ganci
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eric Ganci filed Critical Eric Ganci
Priority to PCT/FR2014/052286 priority Critical patent/WO2016042215A1/en
Publication of WO2016042215A1 publication Critical patent/WO2016042215A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/3806—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/007—Control means comprising cameras, vision or image processing systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27—Means for performing other operations combined with cutting
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4093—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/36—Nc in input of data, input key till input tape
    • G05B2219/36167—Use camera of handheld device, pda, pendant, head mounted display
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/36—Nc in input of data, input key till input tape
    • G05B2219/36175—Capture image of part, create automatically geometry, sequence of machining
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45184—Filming, photography, camera
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Definitions

  • the invention relates to the manufacture of sheets cut to specific contours, and finds an interesting application for so-called masking sheets that protect a portion of the outer surface of an object, including a vehicle automobile. Other applications are likely to come within the scope of the invention, since it involves cutting sheets according to a specific contour.
  • the field of automotive body repair is advantageously covered by the invention; we seek here to protect some parts of vehicles vis-à-vis dirt created by the paint projected on the body. It is known to protect in particular the glass parts of a motor vehicle before painting a part of the body, with masks covering these glass parts.
  • masking operations also called masking
  • a protective mask of a glazed portion and / or curved of a vehicle whose contour is curvilinear and corresponds, after deformation, and once pressed against the outer surface of the glazed part, to the outline of this part.
  • a thin and light sheet material with a thickness of less than 200 microns, preferably between 20 and 80 microns is used; moreover, the material has a basis weight of less than 200 g / m 2 , in particular lying in a range of from 20 to 80 g / m 2 .
  • a material having, on these two sides, a greaseproof paper on its two sides or a solvent-resistant plastic material commonly used for painting vehicles is used.
  • French patent FR 2,888,966 which relates to a method and apparatus for manufacturing masks according to which a two-dimensional contour is calculated from three-dimensional data of the part of the vehicle to be covered. More precisely, the three-dimensional data are determined from a three-dimensional model of the part of the vehicle to be treated; a laser scanner can be used to obtain the three-dimensional model.
  • French patent application FR 2 899 834 shows and describes a masking tape cutting installation for an optimized tension and a recovery of the initial sheet; more or less precise contours are obtained by the method used.
  • the invention aims to overcome the disadvantages of the state of the art and in particular to provide a device offering greater flexibility in its implementation; a saving of time is further achieved according to the invention.
  • a device for obtaining and cutting a cover sheet positionable on a left surface of an object comprising a cutting machine of said sheet provided with a cutting head, a data processing unit adapted to receive data and to control said cutting head, a storage unit (BDD) comprising total or partial area data of said object.
  • BDD storage unit
  • object we mean in particular vehicles, cars, planes, boats, motorcycles, but also other solids which is to hide part of the outer surface with precision and speed.
  • the device according to the invention further comprises a portable photo-type data acquisition means connected by a wireless link to the processing unit and able to acquire data relating to a surface. partial and / or total object and transmit them to the processing unit, means for comparing the received data with stored data to control the cutting head.
  • the acquisition means thus allows a quick acquisition, easy and reliable, even by an unqualified person.
  • the wireless link allows the object to be remote from the processing unit, which is very interesting for example if the object can not be easily moved.
  • the device according to the invention may comprise a glue reservoir capable of depositing a film of glue on the periphery of the cut surface.
  • said glue is repositionable type.
  • the operator can easily take off and move the cut surface, if desired.
  • said portable data acquisition means comprises a digital tablet, or a laptop.
  • the portable data acquisition means may include means for storing the data. It is then possible to dissociate in time the data acquisition operation vis-à-vis the data processing operation by the processing unit functionally linked to the cutting head. The user can thus choose the moment when he sends the data to the processing unit; this flexibility in the use of the device is very appreciated because it is thus possible to acquire and store a certain amount of data relating to several objects or parts of objects, at a given place and time, and according to availability of the cutting machine, to operate the latter at the most opportune moment. An optimization of the efficiency is advantageously obtained, thanks to the dissociated operation of the data acquisition means and the cutting means.
  • the processing unit comprises a microprocessor.
  • a preferred application of the invention relates to motor vehicles.
  • the object is a motor vehicle and said partial surface is defined by a map of a part of said vehicle.
  • said total area is defined according to a map of the outer surface of the vehicle.
  • the invention further relates to a method for obtaining and cutting a positionable cover sheet on a left surface of an object which is to record photo-like data in a portable means of acquiring said data, to transmit said data in a processing unit comprising a microprocessor which controls a cutting head of a cutting machine in order to obtain a contour of the room. More specifically, the method consists in gluing with repositionable glue the cut contour. Easy repositioning is possible.
  • FIG. 1 a schematic view of the device according to a first embodiment of the invention.
  • FIG. 2 is a block diagram of the invention.
  • Figure 1 shows schematically the means implemented according to the invention. More specifically, the object to be treated 1 is here a car that is in a given place.
  • a user stands near the car, provided with a portable means of data acquisition 2, preferably a portable tablet with which he takes at least one photo of the area that is hide. This operation is easy and fast; the user can of course take several snapshots of the area to be treated. He can also take at least one shot of the car as a whole.
  • the portable tablet records this data and sends, on command of the user, to a processing unit 3.
  • a processing unit 3 Preferably the connection between the tablet 2 and the processing means 3 is a wireless link, wi-fi type whose technical characteristics, known in themselves, will not be further described.
  • the setting of the link will be done in a manner known per se, adapted to the hardware (model) used. This is a measurement record, made in a very simple way.
  • the data is then processed by the processing unit 3, simultaneously or deferred.
  • the processing unit 3, which comprises a microprocessor 30, is preferably arranged close to a cutting machine 4.
  • the cutting machine 4 comprises a cutting head 5 whose operation is controlled by the unit. treatment 3.
  • the cutting machine 4 further comprises a glue tank 6.
  • the glue is preferably chosen to allow easy repositioning of the cut sheet on the part to be masked.
  • a glue of the trademark 3M or TESA can be used.
  • Preferably a monocomponent adhesive for papers is used.
  • the width of the glued tape is for example about one centimeter.
  • the glue is chosen so that it can be deposited simultaneously or almost at cutting.
  • the positioning of the reservoir 6 is mutually adapted to the position of the cutting head 5.
  • the reservoir 6 can be arranged behind the cutting machine 4; it is then connected by a silicone hose to a housing containing the cutting head 5 and an adhesive diffusion nozzle.
  • the vehicle 1 and the tablet 2 when shooting (s) are close to one another, depending on the capabilities of the connection between these elements.
  • the tablet 2 may be near or not the cutting machine 4 and the processing unit 3, 30; a priori but not necessarily the tablet and the cutting machine 4 are close to one another.
  • FIG. 2 schematically illustrates the functionalities implemented according to the invention. More precisely, this diagram describes the connection between the tablet 2 and the processing unit 3 equipped with its microprocessor 30 and comprising a database 31.
  • the database 31 may advantageously include three-dimensional surface data relating to several vehicle models; it can further include three-dimensional surface data of parts of these models, for example front, rear, headlamps, etc.
  • the data processing software received from the tablet 2 compares these data with the data in memory in the database.
  • the recognition of a model avoids new calculations and allows to directly and immediately control the cutting machine, according to a precise form already in memory. We optimize the calculation time here.
  • a cutting command via a driver 40 is for example operated. An accurate cut 50 is quickly obtained.
  • the software makes it possible to transform three-dimensional data into surface data that corresponds to the cutting surface.
  • the saving of time vis-à-vis previous known techniques is of the order of 50%, which is considerable.
  • an optimization of the operation of the cutting machine 4 is achieved: it can indeed work in real time with the measurement, or else delayed.
  • the partial area is defined by a map of a part of said object to be processed. Similarly, said total area is defined according to a map of the outer surface of the object to be treated.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Geometry (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Control Of Cutting Processes (AREA)

Abstract

The present invention relates to a device for obtaining and cutting a covering sheet that can be positioned on a skew surface of an object (1), comprising a sheet cutting machine (4) fitted with a cutting head (5), a data processing unit (3) able to receive data and to control said cutting head (5), a memory storage unit (BDD, 31) comprising full or partial surface data pertaining to said object (1); the device according to the invention further comprises a portable means (2) for capturing data of the photos type, which is connected by a wireless connection to the processing unit (3) and able to capture the data relating to a partial and/or complete surface of the object and transmit them to the processing unit (3), means for comparing the data received against the data stored so as to control the cutting head (5). The invention also covers a method for obtaining and cutting a cover sheet that can be positioned on a skew surface of an object (1) which notably involves recording data of the photos type in a portable means for the capture of said data, transmitting said data to a processing unit (3) comprising a microprocessor (30) which controls a cutting head (5) of a cutting machine (4) so as to obtain an outline for the cutting of the component.

Description

DISPOSITIF D'OBTENTION ET DE DECOUPE D'UNE FEUILLE  DEVICE FOR OBTAINING AND CUTTING A SHEET
DOMAINE TECHNIQUE DE L'INVENTION TECHNICAL FIELD OF THE INVENTION
[0001] L'invention se rapporte à la fabrication de feuilles découpées selon des contours spécifiques, et trouve une application intéressante pour des feuilles dites de masquage qui permettent de protéger une partie de la surface extérieure d'un objet, notamment d'un véhicule automobile. D'autres applications sont susceptibles d'entrer dans le cadre de l'invention, dès lors qu'il s'agit de découper des feuilles selon un contour spécifique. [0002] Le domaine de la réparation de carrosserie automobile est avantageusement visé par l'invention ; on cherche ici à protéger certaines parties des véhicules vis-à-vis de salissures crées par la peinture projetée sur la carrosserie. Il est connu de protéger notamment les parties vitrées d'un véhicule automobile avant de peindre une partie de la carrosserie, avec des masques recouvrant ces parties vitrées.  The invention relates to the manufacture of sheets cut to specific contours, and finds an interesting application for so-called masking sheets that protect a portion of the outer surface of an object, including a vehicle automobile. Other applications are likely to come within the scope of the invention, since it involves cutting sheets according to a specific contour. The field of automotive body repair is advantageously covered by the invention; we seek here to protect some parts of vehicles vis-à-vis dirt created by the paint projected on the body. It is known to protect in particular the glass parts of a motor vehicle before painting a part of the body, with masks covering these glass parts.
ETAT DE LA TECHNIQUE ANTERIEURE STATE OF THE PRIOR ART
[0003] Pour ces opérations de masquage, encore appelées marouflage, on peut utiliser par exemple du papier de récupération découpé et posé manuellement par un opérateur sur chaque partie à protéger ; les ébauches ainsi formées ne correspondent pas précisément aux formes des parties à protéger ; de plus ces opérations sont longues et délicates et elles dépendent notamment de l'habileté de l'opérateur.  For these masking operations, also called masking, can be used for example cut paper cut and manually placed by an operator on each part to be protected; the blanks thus formed do not correspond exactly to the shapes of the parts to be protected; moreover these operations are long and delicate and they depend in particular on the skill of the operator.
[0004] On connaît le document WO 02/29767 qui décrit un masque de protection d'une partie vitrée et/ou bombée d'un véhicule, dont le contour est curviligne et correspond, après déformation, et une fois plaqué contre la surface extérieure de la partie vitrée, au contour de cette partie. Selon ce document, on utilise un matériau en feuille mince et léger, d'épaisseur inférieure à 200 microns, préférentiellement entre 20 et 80 microns ; par ailleurs le matériau présente une masse surfacique inférieure à 200g/m2, en particulier située dans une plage allant de 20 à 80 g/m2. De façon spécifique et intéressante et afin notamment que le masque ne se déforme pas ou ne se détériore pas lorsqu'il est en contact avec des substances huileuses ou aqueuses, on utilise ici un matériau présentant, sur ces deux faces, un papier ingraissable sur ses deux faces ou encore une matière plastique résistant aux solvants couramment utilisés pour la peinture des véhicules. Discloses a protective mask of a glazed portion and / or curved of a vehicle, whose contour is curvilinear and corresponds, after deformation, and once pressed against the outer surface of the glazed part, to the outline of this part. According to this document, a thin and light sheet material with a thickness of less than 200 microns, preferably between 20 and 80 microns is used; moreover, the material has a basis weight of less than 200 g / m 2 , in particular lying in a range of from 20 to 80 g / m 2 . Specifically and interestingly and in particular so that the mask does not deform or does not deteriorate when in contact with oily or aqueous substances, here is used a material having, on these two sides, a greaseproof paper on its two sides or a solvent-resistant plastic material commonly used for painting vehicles.
[0005]On connaît aussi la demande de brevet WO 2004/026546 qui divulgue un procédé et un système de coupe de masques de marouflage d'une partie externe d'un véhicule, selon lequel on prédécoupe l'article dans un matériau en feuille selon un contour plan (bidimensionnel) adapté à la partie du véhicule à masquer ; le système comporte un programme de calcul de mise à plat d'un contour gauche qui permet par ailleurs de constituer une base de données géométriques bidimensionnelles de contour approximatif de masques, à partir de données géométriques tridimensionnelles de parties de véhicules à traiter. Un dispositif de fabrication de tels masques est en outre décrit dans ce document. Also known is the patent application WO 2004/026546 which discloses a method and a system for cutting masking masks of an external part of a vehicle, according to which the article is precut in a sheet material according to a planar (two-dimensional) contour adapted to the part of the vehicle to be masked; the system comprises a calculation program for flattening a left contour which also makes it possible to constitute a two-dimensional geometric database of approximate contour of masks, from three-dimensional geometrical data of parts of vehicles to be treated. A device for manufacturing such masks is further described in this document.
[0006]On connaît encore le brevet français FR 2 888 966 qui concerne un procédé et un appareil de fabrication de masques selon lequel on découpe un contour bidimensionnel calculé à partir de données tridimensionnelles de la partie du véhicule à recouvrir. Plus précisément on détermine les données tridimensionnelles à partir d'un modèle tridimensionnel de la partie du véhicule à traiter ; un scanner laser peut être utilisé pour obtenir le modèle tridimensionnel. Also known is the French patent FR 2,888,966 which relates to a method and apparatus for manufacturing masks according to which a two-dimensional contour is calculated from three-dimensional data of the part of the vehicle to be covered. More precisely, the three-dimensional data are determined from a three-dimensional model of the part of the vehicle to be treated; a laser scanner can be used to obtain the three-dimensional model.
[0007] La demande de brevet française FR 2 899 834 montre et décrit une installation de découpe de masques de marouflage permettant une tension optimisée ainsi qu'une récupération de la feuille initiale ; des contours plus ou moins précis sont obtenus par le procédé mis en œuvre. The French patent application FR 2 899 834 shows and describes a masking tape cutting installation for an optimized tension and a recovery of the initial sheet; more or less precise contours are obtained by the method used.
[0008] Ces dispositifs et procédés connus sont techniquement intéressants ; cependant ils se révèlent d'une mise en œuvre délicate, assez longue et nécessitent que l'ensemble des opérations se déroulent en un même lieu et consécutivement dans le temps. Autrement dit, pour une application au domaine de la carrosserie, le véhicule doit se trouver dans l'atelier où se trouve également et simultanément l'ensemble d'acquisition et l'ensemble de traitement des données. Ceci est une première contrainte. [0008] These known devices and methods are technically interesting; however, they turn out to be delicate, rather lengthy and require that all the operations take place in the same place and consecutively in time. In other words, for an application in the field of bodywork, the vehicle must be in the workshop where is also located and simultaneously the acquisition set and the data processing set. This is a first constraint.
[0009] De plus l'acquisition des données relatives à la partie de l'objet à traiter et/ou à l'objet dans son ensemble, même si elle ne nécessite pas un opérateur qualifié, induit cependant un certain temps car il faut balayer les surfaces concernées de façon précise. In addition the acquisition of data relating to the part of the object to be treated and / or the object as a whole, even if it does not require a qualified operator, however, induces a certain time because it must be swept the surfaces concerned in a precise way.
EXPOSE DE L'INVENTION SUMMARY OF THE INVENTION
[0010] L'invention vise à remédier aux inconvénients de l'état de la technique et notamment à proposer un dispositif offrant une plus grande souplesse dans sa mise en œuvre ; un gain de temps est en outre réalisé selon l'invention.  The invention aims to overcome the disadvantages of the state of the art and in particular to provide a device offering greater flexibility in its implementation; a saving of time is further achieved according to the invention.
[0011] Pour ce faire est proposé selon un premier aspect de l'invention un dispositif d'obtention et de découpe d'une feuille de recouvrement positionnable sur une surface gauche d'un objet, comprenant une machine de découpe de ladite feuille munie d'une tête de découpe, une unité de traitement de données apte à recevoir des données et à commander ladite tête de découpe, une unité de mémorisation (BDD) comprenant des données de surfaces totales ou partielles dudit objet. Par Objet' on entend en particulier les véhicules, voitures, avions, bateaux, motos, mais aussi d'autres solides dont il s'agit de masquer une partie de la surface extérieure avec précision et rapidité. [0012] De façon caractéristique, le dispositif selon l'invention comprend en outre un moyen portatif d'acquisition de données de type photos, relié par une liaison sans fil à l'unité de traitement et apte à acquérir des données relatives à une surface partielle et/ou totale de l'objet et à les transmettre à l'unité de traitement, des moyens pour comparer les données reçues avec des données mémorisées afin de commander la tête de découpe. To do this is proposed according to a first aspect of the invention a device for obtaining and cutting a cover sheet positionable on a left surface of an object, comprising a cutting machine of said sheet provided with a cutting head, a data processing unit adapted to receive data and to control said cutting head, a storage unit (BDD) comprising total or partial area data of said object. By object 'we mean in particular vehicles, cars, planes, boats, motorcycles, but also other solids which is to hide part of the outer surface with precision and speed. Typically, the device according to the invention further comprises a portable photo-type data acquisition means connected by a wireless link to the processing unit and able to acquire data relating to a surface. partial and / or total object and transmit them to the processing unit, means for comparing the received data with stored data to control the cutting head.
[0013] Le moyen d'acquisition permet ainsi une acquisition rapide, facile et fiable, même par une personne non qualifiée. De plus la liaison sans fil permet à l'objet de se trouver à distance de l'unité de traitement, ce qui est très intéressant par exemple si l'objet ne peut être facilement déplacé. [0014] En outre le dispositif selon l'invention peut comprendre un réservoir de colle apte à déposer un film de colle sur le pourtour de la surface découpée. The acquisition means thus allows a quick acquisition, easy and reliable, even by an unqualified person. In addition, the wireless link allows the object to be remote from the processing unit, which is very interesting for example if the object can not be easily moved. In addition, the device according to the invention may comprise a glue reservoir capable of depositing a film of glue on the periphery of the cut surface.
[0015] Particulièrement, ladite colle est de type repositionnable. Ainsi, l'opérateur peut aisément décoller puis déplacer la surface découpée, s'il le souhaite. Cette solution résout un problème technique inhérent à cette application, et elle permet un gain de temps et de matière considérable. In particular, said glue is repositionable type. Thus, the operator can easily take off and move the cut surface, if desired. This solution solves a technical problem inherent in this application, and it saves considerable time and material.
[0016] De façon intéressante, ledit moyen portatif d'acquisition des données comprend une tablette numérique, ou un ordinateur portable. [0016] Interestingly, said portable data acquisition means comprises a digital tablet, or a laptop.
[0017] Avantageusement, le moyen portatif d'acquisition des données peut comprendre des moyens de mémorisation des données. Il est alors possible de dissocier dans le temps l'opération d'acquisition des données vis-à-vis de l'opération de traitement des données par l'unité de traitement fonctionnellement liée à la tête de découpe. L'utilisateur peut ainsi choisir le moment où il envoie les données vers l'unité de traitement ; cette souplesse dans l'utilisation du dispositif est très appréciée car il est ainsi possible d'acquérir et de mémoriser un certain nombre de données relatives à plusieurs objets ou parties d'objets, en un lieu et à un moment donnés, puis selon les disponibilités de la machine de découpe, de faire fonctionner cette dernière au moment le plus opportun. Une optimisation du rendement est avantageusement obtenue, grâce au fonctionnement dissocié des moyens d'acquisition des données et des moyens de découpe. Advantageously, the portable data acquisition means may include means for storing the data. It is then possible to dissociate in time the data acquisition operation vis-à-vis the data processing operation by the processing unit functionally linked to the cutting head. The user can thus choose the moment when he sends the data to the processing unit; this flexibility in the use of the device is very appreciated because it is thus possible to acquire and store a certain amount of data relating to several objects or parts of objects, at a given place and time, and according to availability of the cutting machine, to operate the latter at the most opportune moment. An optimization of the efficiency is advantageously obtained, thanks to the dissociated operation of the data acquisition means and the cutting means.
[0018] De façon préférée, l'unité de traitement comprend un microprocesseur. Preferably, the processing unit comprises a microprocessor.
[0019] Une application préférée de l'invention concerne les véhicules automobiles. Ainsi l'objet est un véhicule automobile et ladite surface partielle est définie par une cartographie d'une pièce dudit véhicule. [0020] De manière préférée, ladite surface totale est définie selon une cartographie de la surface extérieure du véhicule. A preferred application of the invention relates to motor vehicles. Thus the object is a motor vehicle and said partial surface is defined by a map of a part of said vehicle. Preferably, said total area is defined according to a map of the outer surface of the vehicle.
[0021] L'invention concerne en outre un procédé d'obtention et de découpe d'une feuille de recouvrement positionnable sur une surface gauche d'un objet qui consiste à enregistrer des données de type photos dans un moyen portatif d'acquisition desdites données, à transmettre lesdites données dans une unité de traitement comprenant un microprocesseur qui commande une tête de découpe d'une machine de découpe afin d'obtenir un contour de la pièce. [0022] Plus spécifiquement, le procédé consiste à encoller avec de la colle repositionnable le contour découpé. Un repositionnement aisé est ainsi possible. The invention further relates to a method for obtaining and cutting a positionable cover sheet on a left surface of an object which is to record photo-like data in a portable means of acquiring said data, to transmit said data in a processing unit comprising a microprocessor which controls a cutting head of a cutting machine in order to obtain a contour of the room. More specifically, the method consists in gluing with repositionable glue the cut contour. Easy repositioning is possible.
BREVE DESCRIPTION DES FIGURES BRIEF DESCRIPTION OF THE FIGURES
[0023] [001 ]D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui suit, en référence aux figures annexées, qui illustrent : la figure 1 , une vue schématique du dispositif selon un premier mode de réalisation de l'invention ; et  Other features and advantages of the invention will become apparent on reading the description which follows, with reference to the appended figures, which illustrate: FIG. 1, a schematic view of the device according to a first embodiment of the invention; and
la figure 2, un schéma fonctionnel de l'invention.  Figure 2 is a block diagram of the invention.
[0024] Pour plus de clarté, les éléments identiques ou similaires sont repérés par des signes de référence identiques sur l'ensemble des figures. For clarity, identical or similar elements are identified by identical reference signs throughout the figures.
DESCRIPTION DETAILLEE D'UN MODE DE REALISATION DETAILED DESCRIPTION OF AN EMBODIMENT
[0025] La figure 1 montre de façon schématique les moyens mis en œuvre selon l'invention. Plus précisément, l'objet à traiter 1 est ici une voiture qui se trouve en un lieu donné. Un utilisateur, sans qualification spécifique, se tient près de la voiture, muni d'un moyen portatif d'acquisition de données 2, de préférence une tablette portative avec laquelle il prend au moins une photo de la zone qu'il s'agit de masquer. Cette opération est facile et rapide ; l'utilisateur peut bien entendu prendre plusieurs clichés de la zone à traiter. Il peut en outre prendre au moins un cliché de la voiture dans son ensemble.  Figure 1 shows schematically the means implemented according to the invention. More specifically, the object to be treated 1 is here a car that is in a given place. A user, without specific qualification, stands near the car, provided with a portable means of data acquisition 2, preferably a portable tablet with which he takes at least one photo of the area that is hide. This operation is easy and fast; the user can of course take several snapshots of the area to be treated. He can also take at least one shot of the car as a whole.
[0026] La tablette portative enregistre ces données et les envoie, sur commande de l'utilisateur, à une unité de traitement 3. De préférence la liaison entre la tablette 2 et le moyen de traitement 3 est une liaison sans fil, de type wi-fi dont les caractéristiques techniques, connues en elles-mêmes, ne seront pas davantage décrites. Le paramétrage de la liaison sera réalisé de façon connue en soi, adaptée au matériel (modèle) utilisé. Il s'agit donc ici d'un relevé de mesures, réalisé de manière très simple. The portable tablet records this data and sends, on command of the user, to a processing unit 3. Preferably the connection between the tablet 2 and the processing means 3 is a wireless link, wi-fi type whose technical characteristics, known in themselves, will not be further described. The setting of the link will be done in a manner known per se, adapted to the hardware (model) used. This is a measurement record, made in a very simple way.
[0027] Les données sont ensuite traitées par l'unité de traitement 3, en simultané ou en différé. L'unité de traitement 3 qui comprend un microprocesseur 30, est de préférence disposé à proximité d'une machine de découpe 4. De façon connue, la machine de découpe 4 comprend une tête de découpe 5 dont le fonctionnement est commandé par l'unité de traitement 3. The data is then processed by the processing unit 3, simultaneously or deferred. The processing unit 3, which comprises a microprocessor 30, is preferably arranged close to a cutting machine 4. In known manner, the cutting machine 4 comprises a cutting head 5 whose operation is controlled by the unit. treatment 3.
[0028]Avantageusement la machine de découpe 4 comprend en outre un réservoir de colle 6. La colle est préférentiellement choisie afin de permettre un repositionnement aisé de la feuille découpée sur la partie à masquer. A titre illustratif, une colle de la marque déposée 3M ou encore TESA peut être utilisée. Préférentiellement une colle monocomposite pour papiers, est utilisée. La largeur de la bande encollée est par exemple d'environ un centimètre. La colle est choisie pour pouvoir être déposée simultanément ou presque à la découpe. Le positionnement du réservoir 6 est mutuellement adapté à la position de la tête de découpe 5. Le réservoir 6 peut être disposé derrière la machine de découpe 4 ; il est alors relié par une durite en silicone à un boîtier renfermant la tête de découpe 5 et une buse de diffusion de la colle. Advantageously, the cutting machine 4 further comprises a glue tank 6. The glue is preferably chosen to allow easy repositioning of the cut sheet on the part to be masked. As an illustration, a glue of the trademark 3M or TESA can be used. Preferably a monocomponent adhesive for papers is used. The width of the glued tape is for example about one centimeter. The glue is chosen so that it can be deposited simultaneously or almost at cutting. The positioning of the reservoir 6 is mutually adapted to the position of the cutting head 5. The reservoir 6 can be arranged behind the cutting machine 4; it is then connected by a silicone hose to a housing containing the cutting head 5 and an adhesive diffusion nozzle.
[0029] Le véhicule 1 et la tablette 2 lors de la prise de vue(s) se trouvent à proximité l'un de l'autre, selon les capacités de la liaison entre ces éléments. La tablette 2 peut être à proximité ou non de la machine de découpe 4 et de l'unité de traitement 3, 30 ; à priori mais non nécessairement la tablette et la machine de découpe 4 se trouvent à proximité l'une de l'autre. The vehicle 1 and the tablet 2 when shooting (s) are close to one another, depending on the capabilities of the connection between these elements. The tablet 2 may be near or not the cutting machine 4 and the processing unit 3, 30; a priori but not necessarily the tablet and the cutting machine 4 are close to one another.
[0030] La figure 2 illustre schématiquement les fonctionnalités mises en œuvre selon l'invention. Plus précisément ce schéma décrit la liaison entre la tablette 2 et l'unité de traitement 3 équipé de son microprocesseur 30 et comprenant une base de données 31 . La base de données 31 peut avantageusement comprendre des données de surface tridimensionnelles relatives à plusieurs modèles de véhicules ; elle peut en outre inclure des données de surfaces tridimensionnelles de parties de ces modèles, par exemples des portes avant, arrière, des phares etc. [0031] Dans cette hypothèse, le logiciel de traitement des données reçues de la tablette 2 compare ces données avec les données en mémoire dans la base de données. La reconnaissance d'un modèle évite de nouveaux calculs et permet de commander directement et immédiatement la machine de découpe, selon une forme précise déjà en mémoire. On optimise ici le temps de calcul. Une commande de découpe via un driver 40 est par exemple opérée. Une découpe 50 précise est rapidement obtenue. De façon connue, le logiciel permet de transformer des données tridimensionnelles en données surfaciques qui correspondent à la surface de découpe. Le gain de temps vis-à-vis des techniques connues antérieures est de l'ordre de 50%, ce qui est considérable. De plus une optimisation du fonctionnement de la machine de découpe 4 est réalisée : celle-ci peut en effet fonctionner en temps réel avec la prise de mesure, ou bien en différé. [0030] Figure 2 schematically illustrates the functionalities implemented according to the invention. More precisely, this diagram describes the connection between the tablet 2 and the processing unit 3 equipped with its microprocessor 30 and comprising a database 31. The database 31 may advantageously include three-dimensional surface data relating to several vehicle models; it can further include three-dimensional surface data of parts of these models, for example front, rear, headlamps, etc. In this case, the data processing software received from the tablet 2 compares these data with the data in memory in the database. The recognition of a model avoids new calculations and allows to directly and immediately control the cutting machine, according to a precise form already in memory. We optimize the calculation time here. A cutting command via a driver 40 is for example operated. An accurate cut 50 is quickly obtained. In known manner, the software makes it possible to transform three-dimensional data into surface data that corresponds to the cutting surface. The saving of time vis-à-vis previous known techniques is of the order of 50%, which is considerable. Moreover an optimization of the operation of the cutting machine 4 is achieved: it can indeed work in real time with the measurement, or else delayed.
[0032] La surface partielle est définie par une cartographie d'une pièce dudit objet à traiter. De même, ladite surface totale est définie selon une cartographie de la surface extérieure de l'objet à traiter. The partial area is defined by a map of a part of said object to be processed. Similarly, said total area is defined according to a map of the outer surface of the object to be treated.

Claims

REVENDICATIONS
Dispositif d'obtention et de découpe d'une feuille de recouvrement positionnable sur une surface gauche d'un objet (1 ), comprenant une machine de découpe (4) de ladite feuille munie d'une tête de découpe (5), une unité de traitement de données (3) apte à recevoir des données et à commander ladite tête de découpe (5), une unité de mémorisation (BDD, 31 ) comprenant des données de surfaces totales ou partielles dudit objet (1 ) caractérisé en ce qu'il comprend en outre un moyen portatif (2) d'acquisition de données de type photos, relié par une liaison sans fil à l'unité de traitement (3) et apte à acquérir des données relatives à une surface partielle et/ou totale de l'objet et à les transmettre à l'unité de traitement (3), des moyens pour comparer les données reçues avec des données mémorisées afin de commander la tête de découpe (5). Device for obtaining and cutting a cover sheet positionable on a left surface of an object (1), comprising a cutting machine (4) of said sheet provided with a cutting head (5), a unit data processing unit (3) adapted to receive data and to control said cutting head (5), a storage unit (BDD, 31) comprising total or partial area data of said object (1) characterized in that it further comprises a portable data acquisition means (2) connected by a wireless link to the processing unit (3) and able to acquire data relating to a partial and / or total area of the object and transmitting them to the processing unit (3), means for comparing the received data with stored data in order to control the cutting head (5).
Dispositif selon la revendication 1 caractérisé en ce qu'il comprend en outre un réservoir de colle (6) apte à déposer un film de colle sur le pourtour de la surface découpée. Device according to claim 1 characterized in that it further comprises an adhesive reservoir (6) capable of depositing a glue film on the periphery of the cut surface.
Dispositif selon la revendication 2 caractérisé en ce que ladite colle est de type repositionnable.  Device according to claim 2 characterized in that said glue is repositionable type.
Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que ledit moyen portatif d'acquisition des données (2) comprend une tablette numérique, ou un ordinateur portable.  Device according to any one of the preceding claims characterized in that said portable data acquisition means (2) comprises a digital tablet, or a laptop.
Dispositif selon l'une des revendications précédentes caractérisé en ce que le moyen portatif d'acquisition des données (2) comprend des moyens de mémorisation des données. Device according to one of the preceding claims, characterized in that the portable data acquisition means (2) comprises means for storing the data.
Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que l'unité de traitement (3) comprend un microprocesseur (30).  Device according to any one of the preceding claims, characterized in that the processing unit (3) comprises a microprocessor (30).
Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que l'objet est un véhicule automobile et en ce que ladite surface partielle est définie par une cartographie d'une pièce dudit véhicule. Device according to any one of the preceding claims, characterized in that the object is a motor vehicle and in that said partial surface is defined by a map of a part of said vehicle.
8. Dispositif selon la revendication 7 caractérisé en ce que ladite surface totale est définie selon une cartographie de la surface extérieure du véhicule. 8. Device according to claim 7 characterized in that said total area is defined according to a map of the outer surface of the vehicle.
9. Procédé d'obtention et de découpe d'une feuille de recouvrement positionnable sur une surface gauche d'un objet (1 ) caractérisé en ce qu'il consiste à enregistrer des données de type photos dans un moyen portatif d'acquisition desdites données, à transmettre lesdites données dans une unité de traitement (3) comprenant un microprocesseur (30) qui commande une tête de découpe (5) d'une machine de découpe (4) afin d'obtenir un contour de découpe de la pièce.  9. A method for obtaining and cutting a positionable cover sheet on a left surface of an object (1) characterized in that it consists in recording photo-type data in a portable means for acquiring said data. transmitting said data in a processing unit (3) comprising a microprocessor (30) which controls a cutting head (5) of a cutting machine (4) to obtain a cutting contour of the workpiece.
10. Procédé selon la revendication 9 caractérisé en ce qu'il consiste en outre à encoller avec de la colle repositionnable le contour découpé. 10. The method of claim 9 characterized in that it further comprises gluing with the repositionable glue cut contour.
PCT/FR2014/052286 2014-09-15 2014-09-15 Device for obtaining and cutting a sheet WO2016042215A1 (en)

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Citations (10)

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Publication number Priority date Publication date Assignee Title
WO2002029767A2 (en) 2000-10-05 2002-04-11 Eric Ganci Method and device for masking part of a vehicle
FR2836576A1 (en) * 2002-02-11 2003-08-29 Gerber Technology Inc Hide surface image data frames calibrated by optical computer-controlled cutting system
EP1342527A1 (en) * 2002-03-01 2003-09-10 Koike Sanso Kogyo Co., Ltd Cutting apparatus
WO2004026546A1 (en) 2002-09-18 2004-04-01 Eric Ganci Method and device for cutting masks for glueing coverings
WO2005039839A2 (en) * 2003-10-28 2005-05-06 Cos.T.A. S.R.L. Method for the continuous trimming and/or measuring of a moving laminar element and relevant machine
FR2888966A1 (en) 2005-07-20 2007-01-26 Eric Ganci Motor vehicle part e.g. windscreen, protecting mask manufacturing method, involves determining part`s three-dimensional geometrical data from three-dimensional model, having splines, of external surface of vehicle portions encircling part
FR2899834A1 (en) 2006-04-14 2007-10-19 Eric Ganci Device for cutting mask for adhering on part of car e.g. wheel to be painted, comprises sheet material having support, unit for cutting the mask in the sheet material on the support, and unit for applying the sheet material on the support
US20100192740A1 (en) * 2009-01-30 2010-08-05 Douglas Bruce Foster Method and apparatus for automated stacking of sheet material bundles
DE102010021830A1 (en) * 2010-05-28 2011-12-01 Wolfgang Bruder System for cutting blank parts utilized during sitting at e.g. furniture area, has unit for cutting laminar body, units for detecting topography of supporting surface and/or body, and tracking device tracking unit based on topography
US20110316977A1 (en) * 2010-06-24 2011-12-29 Pienaar Marius G Method of cnc profile cutting program manipulation

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002029767A2 (en) 2000-10-05 2002-04-11 Eric Ganci Method and device for masking part of a vehicle
FR2836576A1 (en) * 2002-02-11 2003-08-29 Gerber Technology Inc Hide surface image data frames calibrated by optical computer-controlled cutting system
EP1342527A1 (en) * 2002-03-01 2003-09-10 Koike Sanso Kogyo Co., Ltd Cutting apparatus
WO2004026546A1 (en) 2002-09-18 2004-04-01 Eric Ganci Method and device for cutting masks for glueing coverings
WO2005039839A2 (en) * 2003-10-28 2005-05-06 Cos.T.A. S.R.L. Method for the continuous trimming and/or measuring of a moving laminar element and relevant machine
FR2888966A1 (en) 2005-07-20 2007-01-26 Eric Ganci Motor vehicle part e.g. windscreen, protecting mask manufacturing method, involves determining part`s three-dimensional geometrical data from three-dimensional model, having splines, of external surface of vehicle portions encircling part
FR2899834A1 (en) 2006-04-14 2007-10-19 Eric Ganci Device for cutting mask for adhering on part of car e.g. wheel to be painted, comprises sheet material having support, unit for cutting the mask in the sheet material on the support, and unit for applying the sheet material on the support
US20100192740A1 (en) * 2009-01-30 2010-08-05 Douglas Bruce Foster Method and apparatus for automated stacking of sheet material bundles
DE102010021830A1 (en) * 2010-05-28 2011-12-01 Wolfgang Bruder System for cutting blank parts utilized during sitting at e.g. furniture area, has unit for cutting laminar body, units for detecting topography of supporting surface and/or body, and tracking device tracking unit based on topography
US20110316977A1 (en) * 2010-06-24 2011-12-29 Pienaar Marius G Method of cnc profile cutting program manipulation

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