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FR2572326A1 - Process and machine for automatically welding plastic components including an integrated winding (coil) - Google Patents

Process and machine for automatically welding plastic components including an integrated winding (coil) Download PDF

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Publication number
FR2572326A1
FR2572326A1 FR8416691A FR8416691A FR2572326A1 FR 2572326 A1 FR2572326 A1 FR 2572326A1 FR 8416691 A FR8416691 A FR 8416691A FR 8416691 A FR8416691 A FR 8416691A FR 2572326 A1 FR2572326 A1 FR 2572326A1
Authority
FR
France
Prior art keywords
machine
parts
welding
temperature
card
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR8416691A
Other languages
French (fr)
Other versions
FR2572326B1 (en
Inventor
Jean Sauron
Didier Usclat
Patrick Le Testu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Engie SA
Original Assignee
Gaz de France SA
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 Gaz de France SA filed Critical Gaz de France SA
Priority to FR8416691A priority Critical patent/FR2572326B1/en
Publication of FR2572326A1 publication Critical patent/FR2572326A1/en
Application granted granted Critical
Publication of FR2572326B1 publication Critical patent/FR2572326B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/12—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers
    • G05B19/128—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers the workpiece itself serves as a record carrier, e.g. by its form, by marks or codes on it
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91221—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9131—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the heat or the thermal flux, i.e. the heat flux
    • B29C66/91311—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the heat or the thermal flux, i.e. the heat flux by measuring the heat generated by Joule heating or induction heating
    • B29C66/91315—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the heat or the thermal flux, i.e. the heat flux by measuring the heat generated by Joule heating or induction heating by measuring the current intensity
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/967—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes
    • B29C66/9672—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving special data inputs or special data outputs, e.g. for monitoring purposes involving special data inputs, e.g. involving barcodes, RFID tags
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/94—Measuring or controlling the joining process by measuring or controlling the time

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The invention relates to the automatic welding of plastic components including an integrated winding (coil). In order to carry out an automatic welding operation taking into account the diversity of the components used, an identification card 6, 6' including the parameters useful for the production of the weld is associated with the components to be welded and means 7, 10 for reading the said card and for initiating the specified welding program, whilst taking into account the temperature of the components measured by a thermal probe 12, are provided on the welding machine 9. The invention is particularly applicable to the production of gas distribution networks by means of plastic pipes.

Description

L'invention a pour objet un procédé et une machine pour la réalisation automatique de la soudure entre-elles de pièces en matière plastique. The subject of the invention is a method and a machine for the automatic welding of plastic parts to one another.

Pour de nombreux emplois, et en particulier, pour l'établissement de réseaux de distribution de gaz, on utilise de plus en plus fréquemment des tubes en matière plastique et particulièrement en polyéthylène. For many uses, and in particular for the establishment of gas distribution networks, plastic and particularly polyethylene tubes are used more and more frequently.

L'assemblage de ces tubes ne peut se faire de façon satisfaisante par collage, et l'on est donc amené à les souder et plus précisément à les thermosouder.The assembly of these tubes can not be done satisfactorily by gluing, and it is therefore necessary to weld them and more precisely to heat seal them.

Une technique de plus en plus employée consiste à assembler les tubes au moyen de manchons qui comportent un bobinage électrique sur leur face interne,
L'opération de soudage est réalisée en raccordant le bobinage à une source électrique qui, par effet Joule,va échauffer Le bobinage et provoquer la fusion de la matière plastique du manchon et du tube réalisant ainsi le soudage.An increasingly used technique consists in assembling the tubes by means of sleeves which have an electric coil on their internal face,
The welding operation is carried out by connecting the winding to an electrical source which, by the Joule effect, will heat the winding and cause the plastic material of the sleeve and the tube to merge, thereby carrying out the welding.

D'autres pièces, telles que prises de branchement, bouchons, etc..., sont également assemblées sur le réseau suivant le même principe. Other parts, such as connection sockets, plugs, etc., are also assembled on the network according to the same principle.

Il existe actuellement plusieurs fabricants de pièces, en particulier en polyéthylène, qui sont assemblées par électrosoudage. Chaque fabricant a établi des règles précises pour souder dans de bonnes condi- tions son matériel.  There are currently several manufacturers of parts, in particular polyethylene, which are assembled by electrofusion. Each manufacturer has established precise rules for welding equipment in good conditions.

Par suite, L'utilisateur est amené dans la pratique à devoir modifier fréquemment les normes de soudage qu'il doit utiliser en fonction de chaque type de matériel. La question se complique encore par Le fait que
Les pièces, provenant de fabricants différents, peuvent être assembLées entre-elles, et d'autre part La question des marques et des sous-marques, et également les évolutions chez un même fabricant d'une même gamme,compliquent encore les opérations et multiplient le risque d'erreur pouvant conduire à des défauts de soudure.Consequently, the user is led in practice to have to frequently modify the welding standards which he must use according to each type of material. The issue is further complicated by the fact that
The parts, coming from different manufacturers, can be assembled together, and on the other hand The question of brands and sub-brands, and also developments at the same manufacturer of the same range, further complicate operations and multiply the risk of error which can lead to welding faults.

L'invention a pour objet d'éviter ces difficultés en permettant à l'utilisateur d'effectuer un soudage automatique quel que soit le type de pièces à souder, et quelle que soit la source de puissance électrique disponible sur le chantier. The object of the invention is to avoid these difficulties by allowing the user to carry out automatic welding regardless of the type of parts to be welded, and whatever the source of electrical power available on site.

Le procédé de l'invention se caractérise à cet effet en ce qu'on associe aux pièces à souder une carte d'identification comportant au moins tous les paramètres utiles à la réaLisation de la soudure de ces pièces, on prévoit sur la machine des moyens de lecture de ladite carte, ainsi que de mise en oeuvre d'un programme de soudure correspondant aux paramètres relevés, on prévoit une sonde thermique relevant la température des pièces à souder, et des moyens pour entrer dans ladite machine ce paramètre suppLémentaire de température, et l'on prévoit enfin des moyens de rectification modifiant te programme de soudure en fonction de ladite température relevée sur Les pièces. The process of the invention is characterized for this purpose in that there is associated with the parts to be welded an identification card comprising at least all of the parameters useful for carrying out the welding of these parts, means are provided on the machine. for reading said card, as well as for implementing a soldering program corresponding to the parameters noted, a thermal probe providing the temperature of the parts to be welded is provided, and means for entering this additional temperature parameter into said machine, and finally, rectification means are provided which modify the welding program as a function of said temperature recorded on the parts.

En procédant de cette façon, on évite la difficulté inhérente à la tenue en permanence d'une liste à jour des pièces disponibles et des spécifications de chaque constructeur, Les pièces étant identifiées au niveau de leur utilisation de façon univoque. En outre, la prise en compte automatique du facteur de température des pièces à souder permet d'obtenir des opérations beaucoup ptus précises et sûres.  By proceeding in this way, the difficulty inherent in permanently keeping an up-to-date list of available parts and the specifications of each manufacturer is avoided. The parts are uniquely identified in terms of their use. In addition, the automatic taking into account of the temperature factor of the parts to be welded makes it possible to obtain much more precise and safe operations.

Selon une autre caractéristique de l'invention, on prévoit au niveau des paramètres d'identification des pièces, des informations redondantes permettant d'assurer au niveau de la machine des opérations de vérification, de contrôle et éventuellement d'arrêt de la machine et d'affichage en cas d'anomalies relevées. Cette redondance d'informations évite des erreurs de lecture ou dtinterpré- tation pouvant provenir par exemple d'un code d'identification détérioré ou partiellement effacé. According to another characteristic of the invention, there is provided at the level of the parameters for identifying the parts, redundant information making it possible to ensure, at the level of the machine, operations of verification, control and possibly stopping of the machine and d 'display in case of anomalies noted. This redundancy of information avoids reading or interpretation errors which may arise, for example, from a damaged or partially erased identification code.

La machine permettant la mise en oeuvre du procédé de l'invention se caractérise quant à elle en ce que, comportant de façon en soi connue, des moyens de commande et de réglage de la puissance et de la durée du chauffage permettant de réaliser la soudure, elle comporte en combinaison :
- des moyens de lecture d'une carte d'identification propre à chaque pièce,
- des moyens de lecture liés à une sonde thermique mesurant la température des pièces à souder,
- des moyens de programmation déterminant en fonction des paramètres lus issus de ladite carte et de ladite sonde les caractéristiques du programme de soudure à appliquer, et
- des moyens de commande de la source électrique de soudage disponible pour appliquer auxdites pièces à souder L'énergie électrique requise déterminée.The machine allowing the implementation of the method of the invention is characterized in that, comprising, in a manner known per se, means for controlling and adjusting the power and the duration of the heating enabling the welding to be carried out , it includes in combination:
means of reading an identification card specific to each room,
reading means linked to a thermal probe measuring the temperature of the parts to be welded,
programming means determining, as a function of the parameters read from said card and said probe, the characteristics of the welding program to be applied, and
- Control means of the welding electric source available to apply to said parts to be welded The required electrical energy determined.

L'invention et sa mise en oeuvre apparaîtront pLus clairement à L'aide de la description qui va suivre faite en référence aux dessins annexés illustrant schématiquement et à titre d'exemple deux modes de mise en oeuvre. Dans ces dessins
- la figure 1 est un schéma synoptique d'ensemble montrant l'application du procédé de l'invention,
- la figure 2 est un schéma synoptique montrant le fonctionnement de ta machine constituée de deux étages analogique/logique et de puissance,
- la figure 3 montre la modification du schéma de La figure 2 dans le cas d'une machine utilisant un étage de puissance extérieur à La machine et devant être piloté.The invention and its implementation will appear more clearly with the aid of the description which follows, made with reference to the appended drawings illustrating schematically and by way of example two modes of implementation. In these drawings
FIG. 1 is an overall block diagram showing the application of the method of the invention,
FIG. 2 is a block diagram showing the operation of your machine consisting of two analog / logic and power stages,
- Figure 3 shows the modification of the diagram of Figure 2 in the case of a machine using a power stage external to the machine and having to be controlled.

En se référant à La figure 1 on a montré schématiquement deux éléments de conduite 1, 2, en matière plastique, par exempLe du poLyéthylène devant être réunis au moyen d'un manchon 3,également en poLyéthylène qui sera thermosoudé à cheval sur Les extrémités des éléments I et 2 aboutés. Le manchon 3 comprend, de manière cLassique, un bobinage électrique (non représenté) au voisinage de sa paroi intérieure, les extrémités des bobinages étant accessibLes par deux bornes 4, 5, d'alimentation. Referring to FIG. 1, we have shown diagrammatically two pipe elements 1, 2, made of plastic, for example polyethylene to be joined by means of a sleeve 3, also made of polyethylene which will be heat-sealed astride the ends of the elements I and 2 abutted. The sleeve 3 comprises, in a conventional manner, an electrical winding (not shown) in the vicinity of its inner wall, the ends of the windings being accessible by two supply terminals 4, 5.

De façon connue, la thermosoudure du manchon 3 sur les éléments 1, 2, s'effectue en faisant passer entre les bornes 4, 5, une énergie éLectrique précisément catcu- lée pendant une durée déterminée, et ce pour obtenir La montée en température convenabLe à La réalisation d'une bonne thermosoudure des trois pièces 1, 2 et 3. In known manner, the heat sealing of the sleeve 3 on the elements 1, 2 is carried out by passing between the terminals 4, 5, an electric energy precisely catchal for a determined period, and this in order to obtain the suitable rise in temperature. à Achieving good heat sealing of the three parts 1, 2 and 3.

Essentiellement, ces données dépendent de La pièce 3 et en particuLier des paramètres suivants diamètre du manchon, épaisseur de sa paroi, résistance du bobinage électrique intégré, longueur du manchon, qualité de ta matière pLastique, etc... Essentially, these data depend on part 3 and in particular on the following parameters: diameter of the sleeve, thickness of its wall, resistance of the integrated electrical winding, length of the sleeve, quality of your plastic material, etc.

Conformément à L'invention, tous ces paramètres qui dictent les conditions d'exécution du programme de soudure,c'est-â-dire essentielLement la durée et la puissance du chauffage électrique, sont indiqués sur une plaque d'identification, telle que 6 ou 6', attachée ou portée par Le manchon 3. Cette plaque d'identification peut être de tout type approprié, par exemple d'un type code-barres (Lisible par crayon optique ou par laser) code magnétique (lisible par tête magnétique), etc...  In accordance with the invention, all of these parameters which dictate the conditions for carrying out the welding program, that is to say essentially the duration and the power of the electric heating, are indicated on an identification plate, such as 6 or 6 ', attached or carried by the sleeve 3. This identification plate can be of any suitable type, for example of a barcode type (readable by optical pencil or by laser) magnetic code (readable by magnetic head) , etc ...

Ces moyens qui sont bien connus et couramment utilisés dans de nombreux domaines ne seront pas décrits, car ils ne font pas partie de l'invention.These means which are well known and commonly used in many fields will not be described, because they do not form part of the invention.

La plaque ou carte d'identification 6, si elle est détachabLe est introduite, par exemple, dans une fente d'introduction 7 de l'étage analogique/logique 8 de la machine 9. Les données qu'elle porte sont ainsi introduites et lues par la machine, comme il sera décrit plus loin. The identification plate or card 6, if it is detachable, is introduced, for example, into an insertion slot 7 of the analog / logic stage 8 of the machine 9. The data which it carries are thus introduced and read by the machine, as will be described later.

En variante, si la carte d'identification reste apposée comme indiqué en 6' sur le manchon 3, elle est lue, par exemple par un crayon optique 10 s'il s'agit d'un code-barres d'identification. Le crayon 10 relié par un fil 11 à L'étage analogique/logique 8 permet l'introduction dans la machine des données d'identification. As a variant, if the identification card remains affixed as indicated at 6 ′ on the sleeve 3, it is read, for example by an optical pencil 10 if it is an identification barcode. The pencil 10 connected by a wire 11 to the analog / logic stage 8 allows the introduction into the machine of the identification data.

En outre, il est prévu une sonde thermique 12 dont la prise de température 13 est mise au contact du manchon 3 pour déterminer la température effective de La pièce au début de la soudure. La sonde thermique 12 reliée par le câble multifils 11 à la machine 9 permet d'introduire ce paramètre de température dans L'étage analogique/ logique de la machine. In addition, a thermal probe 12 is provided, the temperature measurement 13 of which is brought into contact with the sleeve 3 to determine the effective temperature of the part at the start of the welding. The thermal probe 12 connected by the multi-wire cable 11 to the machine 9 makes it possible to introduce this temperature parameter into the analog / logic stage of the machine.

En fonction du programme préétabli interne à la machine, celle-ci détermine, au niveau de l'étage analogique/logique 8 l'énergie devant être délivrée par l'étage de puissance 14 au fil 15 d'alimentation de l'enroulement de chauffage entre les bornes 4, 5 du manchon 3. Depending on the preset program internal to the machine, the latter determines, at the analog / logic stage 8, the energy to be delivered by the power stage 14 to the supply wire 15 of the heating winding between terminals 4, 5 of sleeve 3.

L'énergie électrique admise par l'étage de puissance 14, dans le fil 15, est fournie par une source d'énergie électrique 35 qui peut être constituée, par exemple, par le courant électrique du réseau ou par une génératrice de chantier.The electrical energy admitted by the power stage 14, in the wire 15, is supplied by a source of electrical energy 35 which can be constituted, for example, by the electrical current of the network or by a site generator.

On se reportera maintenant à la figure 2, dans laquelle on a montré plus en détails la conception de la machine 9. We will now refer to FIG. 2, in which the design of the machine 9 has been shown in more detail.

Toutes les pièces constituant l'étage analogique/logique 8 ont été incluses dans un rectangle en traitspoints 16 et toutes les pièces concernant L'étage de puissance 14 ont été incluses dans un rectangle en traitspoints 17. All the pieces constituting the analog / logic stage 8 have been included in a rectangle in dash points 16 and all the pieces concerning the power stage 14 have been included in a rectangle in dash points 17.

L'étage anaLogique#logique comprend un ampli ficateur 18 recevant les signaux d'information contenus dans la carte d'identification 6 ou 6'. Après l'amplificateur 18 on trouve un circuit de mise en forme 19, un circuit de décodage 10, un circuit de vérification-lecture 21 et enfin un circuit 22 de détermination des réglages, qui peut être piloté par un micro-processeur intégré. The analog logic # stage comprises an amplifier 18 receiving the information signals contained in the identification card 6 or 6 ′. After the amplifier 18 there is a shaping circuit 19, a decoding circuit 10, a verification-read circuit 21 and finally a circuit 22 for determining the settings, which can be controlled by an integrated microprocessor.

De la même façon, la sonde 12 de détection des températures transmet ses signaux à un ampli 23 et les signaux amplifiés arrivent à un étage de mesure 24 qui applique au circuit 22 le signal de mesure correspondant. Similarly, the temperature detection probe 12 transmits its signals to an amplifier 23 and the amplified signals arrive at a measurement stage 24 which applies to the circuit 22 the corresponding measurement signal.

A partir de ce moment, le circuit 22 est capable d'adresser, par le circuit C les signaux de commande à L'étage de puissance 14. From this moment, the circuit 22 is capable of addressing, by the circuit C, the control signals to the power stage 14.

L'étage 8 comprend, en outre, un circuit 25 de comparaisons et de contrôles relié au circuit 22 et permettant, par la comparaison des informations redondantes provenant de La carte d'identification 6*u 6' de v#érifier si les opérations en cours sont correctes. Stage 8 further comprises a circuit 25 for comparisons and controls connected to circuit 22 and making it possible, by comparison of redundant information coming from the identification card 6 * or 6 ', to verify whether the operations in courses are correct.

En cas d'anomalies détectées, le circuit 25 commande, par une ligne B L'arrêt du cycle de soudure et commande également L'affichage en 26 des défauts , ainsi qu'éventuellement la mise en route d'alarmes et de sécurites. In the event of anomalies detected, the circuit 25 controls, by a line B, the stopping of the welding cycle and also controls the display at 26 of the faults, as well as possibly the activation of alarms and safety devices.

Une surveillance des opérations est, en outre, réalisée de façon continue par un circuit A, permettant de mesurer l'intensité du courant de soudage au moyen d'une boucle de contrôle 27 permettant la détermination de mesuresen 28, Lesquelles sont appliquées au circuit 25 de comparaison et de contrôle et également au circuit 21 de vérification et de lecture. A monitoring of the operations is, moreover, carried out continuously by a circuit A, making it possible to measure the intensity of the welding current by means of a control loop 27 allowing the determination of measurements in 28, which are applied to the circuit 25 comparison and control and also to the circuit 21 for verification and reading.

Le réglage approprié de la puissance électrique étant ainsi déterminé au niveau du circuit 22, celui-ci commande l'étage de puissance 14 qui laisse passer en 29 ta puissance requise pendant le temps déterminé en direction du fil 15 d'alimentation du bobinage, puissance fournie par La source d'énergie électrique extérieure 30, telle par exemple que celle du réseau électrique général. The appropriate adjustment of the electrical power being thus determined at the level of the circuit 22, the latter controls the power stage 14 which allows the required power to pass through 29 ta during the determined time in the direction of the winding supply wire 15, power supplied by the external electrical energy source 30, such as that of the general electrical network.

Si L'opération s'effectue normalement, la machine affiche en 26 les phases successives en cours d'opération et en particulier le moment où la soudure est réalisée. If the operation is carried out normally, the machine displays at 26 the successive phases during the operation and in particular the time when the welding is carried out.

Si un défaut ou une anomalie apparait, celuici s'affiche également en 26 et le circuit 25 commande par la ligne B le commutateur 31 d'arrêt de L'opération en cours. If a fault or anomaly appears, this is also displayed at 26 and circuit 25 controls via line B the switch 31 for stopping the operation in progress.

Selon la variante de La figure 3, on a suppose que l'étage de puissance était extérieur à la machine et non intégré à elle. Dans ce cas, il est nécessaire de prévoir un étage d'adaptation 32 pour le pilotage à par tir de l'étage analogique/logique 8 de la source de puissance 33. Pour le reste, il n'y a pas de modification notable.  According to the variant of FIG. 3, it is assumed that the power stage was outside the machine and not integrated into it. In this case, it is necessary to provide an adaptation stage 32 for piloting the analog / logic stage 8 of the power source 33 by firing. For the rest, there is no significant modification.

Claims (4)

REVENDICATIONS 1. - Procédé pour la réalisation, au moyen d'une machine à commande automatique, de la soudure entre-elles de pièces en matière plastique comportant un bobinage intégré permettant le chauffage électrique des pièces à la température convenable de soudure, caractérisé en ce qu'on associe aux pièces à souder une carte d'identification (6, 6') comportant au moins tous les paramètres utiles à la réalisation de la soudure de ces pièces, on prévoit sur la machine (9) des moyens de lecture (18-21) de ladite carte ainsi que de mise en oeuvre (22) d'un programme de soudure correspondant aux paramètres relevés, on prévoit une sonde thermique (12) relevant la température des pièces à souder, et des moyens (23, 24) pour entrer dans ladite machine ce paramètre supplémentaire de température, et l'on prévoit enfin des moyens de rectification (22) modifiant le programme de soudure en fonction de ladite température relevée sur les pièces. 1. - Method for producing, by means of an automatic control machine, the welding together of plastic parts comprising an integrated coil enabling the electrical heating of the parts to the suitable welding temperature, characterized in that 'is associated with the parts to be welded an identification card (6, 6') comprising at least all the parameters useful for carrying out the welding of these parts, there are provided on the machine (9) reading means (18- 21) of said card as well as of implementation (22) of a soldering program corresponding to the parameters noted, a thermal probe (12) providing the temperature of the parts to be welded is provided, and means (23, 24) for enter this additional temperature parameter into said machine, and finally rectification means (22) are provided which modify the welding program as a function of said temperature recorded on the parts. 2. - Procédé selon la revendication 1, caractérisé en ce qu'on prévoit au niveau des paramètres d'identification des pièces, des informations redondantes, permettant d'assurer, au niveau de la machine des opérations de vérification, de contrôle et éventuellement d'arrêt (25) de la machine et d'affichage (26) en particulier en cas d'anomaties relevées.  2. - Method according to claim 1, characterized in that there is provided at the identification parameters of the parts, redundant information, making it possible to ensure, at the machine level, verification, control and possibly 'stop (25) of the machine and display (26) in particular in case of anomalies noted. 3. - Machine pour la mise en oeuvre du procédé selon la revendication 1 ou La revendication 2, caractérisée en ce que comportant, de façon en soi connue, des moyens de commande et de réglage de la puissance et de la durée du chauffage permettant de réaliser la soudure, elle comprend, en combinaison 3. - Machine for implementing the method according to claim 1 or claim 2, characterized in that comprising, in a manner known per se, means for controlling and adjusting the power and the duration of the heating making it possible to welding, it includes, in combination - des moyens de lecture (7, 10, 18-21) d'une carte d'identification (6, 6') propre à chaque pièce, means of reading (7, 10, 18-21) of an identification card (6, 6 ′) specific to each room, - des moyens de lecture (23, 24) liés à une sonde thermique (12) mesurant La température des pièces  - reading means (23, 24) linked to a thermal probe (12) measuring the temperature of the rooms - des moyens de programmation (22) déterminant, en fonction des paramètres lus issus de ladite carte (6, 6') et de ladite sonde (12), les caractéristiques du programme de soudure à appliquer, et programming means (22) determining, as a function of the parameters read from said card (6, 6 ′) and said probe (12), the characteristics of the welding program to be applied, and - des moyens de commande(29, 32, 33) de la source électrique de soudage disponible pour appliquer auxdites pièces à souder l'énergie électrique requise déterminée. - control means (29, 32, 33) of the electrical welding source available to apply to said parts to be welded the required electrical energy determined. 4. - Machine selon la revendication 3, caractérisée en ce qu'elle comporte des moyens d'adaptation (32) et de pilotage (33) d'une source de puissance régulée.  4. - Machine according to claim 3, characterized in that it comprises adaptation means (32) and control (33) of a regulated power source.
FR8416691A 1984-10-31 1984-10-31 METHOD AND MACHINE FOR PRODUCING AUTOMATIC WELDING OF PLASTIC PARTS WITH INTEGRATED WINDING. Expired FR2572326B1 (en)

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EP0189918A3 (en) * 1985-01-29 1987-06-24 E.I. Du Pont De Nemours And Company Heat-fusion pipe fitting system
EP0272978A1 (en) * 1986-12-23 1988-06-29 Gaz De France Method to control the elevation of the temperature of electrically heated parts
JPS63160822A (en) * 1986-12-24 1988-07-04 Sekisui Chem Co Ltd Electric fusing-equipment
FR2618097A1 (en) * 1987-07-15 1989-01-20 Gaz De France PROCESS AND MACHINE FOR THE WELDING BETWEEN PLASTIC PARTS WITH INTEGRATED WINDING
EP0335010A3 (en) * 1988-03-30 1990-07-18 Hurner Gmbh Electric welding device for automatically welding heating spiral fittings together
EP0366854A3 (en) * 1988-11-01 1990-11-07 Nova Biomedical Corporation Controlling machine operation with respect to consumable accessory units
EP0398527A3 (en) * 1989-05-19 1992-04-29 Minnesota Mining And Manufacturing Company Electrofusion marker
FR2691666A1 (en) * 1992-06-01 1993-12-03 Gaz De France Process for butt welding two ID-code plastic parts by means of an electrically-controlled electro-sealing machine.
WO1995016557A3 (en) * 1993-12-15 1996-02-29 Tokushu Kogyo Kabushikigaisha Electrofusion fastening apparatus
JPH09123286A (en) * 1996-08-05 1997-05-13 Sekisui Chem Co Ltd Electrodeposition device
JPH09123288A (en) * 1996-08-05 1997-05-13 Sekisui Chem Co Ltd Electrodeposition device
JPH09123287A (en) * 1996-08-05 1997-05-13 Sekisui Chem Co Ltd Electrodeposition device
WO1997020682A1 (en) * 1995-12-05 1997-06-12 Hürner Gmbh Method and arc welding device for automatically welding heater coil fittings
JP2638112B2 (en) 1988-08-29 1997-08-06 株式会社クボタ Apparatus and method for controlling electrofusion
ES2128976A1 (en) * 1997-03-20 1999-05-16 Gas Natural Sdg S A Y Acuster Improved machine for welding tubular elements of thermoplastic material
US6036795A (en) * 1997-04-23 2000-03-14 Gaz De France (G.D.F.) Service National Butt-welding process using an automatically controlled electro-welding machine
EP0924053A3 (en) * 1997-12-18 2001-07-04 Friatec Aktiengesellschaft Electric welding apparatus
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US6570118B2 (en) 2000-03-15 2003-05-27 Societe Joseph Sauron Materiel Industriel Z. I. Les Bordes Arc welding system and a process therefor
RU2484962C1 (en) * 2012-01-10 2013-06-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Казанский государственный энергетический университет" (ФГБОУ ВПО "КГЭУ") Device for welding polymer tubular elements
DE102011107546B4 (en) * 2011-07-15 2014-09-18 Friatec Ag Flag for a weldable by means of Heizwendelschweißbares plastic component
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EP0189918A3 (en) * 1985-01-29 1987-06-24 E.I. Du Pont De Nemours And Company Heat-fusion pipe fitting system
US4837424A (en) * 1986-12-23 1989-06-06 Gaz De France Process for conducting and monitoring the temperature rise of electrically heated components
JPS63173106A (en) * 1986-12-23 1988-07-16 ギヤーズ・ドウ・フランス Induction and control of temperature boosting of member heated electrically
FR2609933A1 (en) * 1986-12-23 1988-07-29 Gaz De France METHOD FOR DRIVING AND CONTROLLING THE TEMPERATURE RAISING OF ELECTRICALLY HEATED PARTS
EP0272978A1 (en) * 1986-12-23 1988-06-29 Gaz De France Method to control the elevation of the temperature of electrically heated parts
JP2739578B2 (en) 1986-12-23 1998-04-15 ギヤーズ・ドウ・フランス Method of controlling the temperature of a member having an electric resistor
JPS63160822A (en) * 1986-12-24 1988-07-04 Sekisui Chem Co Ltd Electric fusing-equipment
FR2618097A1 (en) * 1987-07-15 1989-01-20 Gaz De France PROCESS AND MACHINE FOR THE WELDING BETWEEN PLASTIC PARTS WITH INTEGRATED WINDING
US4918292A (en) * 1987-07-15 1990-04-17 Gaz De France Process and machine for the welding together of plastic parts processing a built-in winding
EP0335010A3 (en) * 1988-03-30 1990-07-18 Hurner Gmbh Electric welding device for automatically welding heating spiral fittings together
US5130518A (en) * 1988-03-30 1992-07-14 Hurner Gmbh Electric welding apparatus for automatically welding heating coil fittings
JP2638112B2 (en) 1988-08-29 1997-08-06 株式会社クボタ Apparatus and method for controlling electrofusion
EP0366854A3 (en) * 1988-11-01 1990-11-07 Nova Biomedical Corporation Controlling machine operation with respect to consumable accessory units
EP0398527A3 (en) * 1989-05-19 1992-04-29 Minnesota Mining And Manufacturing Company Electrofusion marker
US5620625A (en) * 1992-06-01 1997-04-15 Gaz De France (Service National) Method of butt-welding two plastic parts with an identifying code, using an automatically controlled electro-welding machine
WO1993024301A3 (en) * 1992-06-01 1994-02-17 Gaz De France Method for butt-welding two plastic parts with identification code, by means of an automatically controlled electro-welding machine
FR2691666A1 (en) * 1992-06-01 1993-12-03 Gaz De France Process for butt welding two ID-code plastic parts by means of an electrically-controlled electro-sealing machine.
WO1995016557A3 (en) * 1993-12-15 1996-02-29 Tokushu Kogyo Kabushikigaisha Electrofusion fastening apparatus
DE19545317C2 (en) * 1995-12-05 2000-02-17 Huerner Gmbh Process and electric welding machine for automatic welding of heating coil fittings
WO1997020682A1 (en) * 1995-12-05 1997-06-12 Hürner Gmbh Method and arc welding device for automatically welding heater coil fittings
JPH09123286A (en) * 1996-08-05 1997-05-13 Sekisui Chem Co Ltd Electrodeposition device
JP2730884B2 (en) 1996-08-05 1998-03-25 積水化学工業株式会社 Electric welding equipment
JP2730885B2 (en) 1996-08-05 1998-03-25 積水化学工業株式会社 Electric welding equipment
JPH09123287A (en) * 1996-08-05 1997-05-13 Sekisui Chem Co Ltd Electrodeposition device
JPH09123288A (en) * 1996-08-05 1997-05-13 Sekisui Chem Co Ltd Electrodeposition device
ES2128976A1 (en) * 1997-03-20 1999-05-16 Gas Natural Sdg S A Y Acuster Improved machine for welding tubular elements of thermoplastic material
US6036795A (en) * 1997-04-23 2000-03-14 Gaz De France (G.D.F.) Service National Butt-welding process using an automatically controlled electro-welding machine
EP0924053A3 (en) * 1997-12-18 2001-07-04 Friatec Aktiengesellschaft Electric welding apparatus
US6407370B2 (en) 2000-01-28 2002-06-18 Societe Joseph Sauron Materiel Industriel Regulated electro-welding device
US6570118B2 (en) 2000-03-15 2003-05-27 Societe Joseph Sauron Materiel Industriel Z. I. Les Bordes Arc welding system and a process therefor
DE102011107546B4 (en) * 2011-07-15 2014-09-18 Friatec Ag Flag for a weldable by means of Heizwendelschweißbares plastic component
RU2484962C1 (en) * 2012-01-10 2013-06-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Казанский государственный энергетический университет" (ФГБОУ ВПО "КГЭУ") Device for welding polymer tubular elements
WO2021048253A1 (en) 2019-09-12 2021-03-18 Grtgaz Method for checking, and device for measuring, components of a pipe prior to welding
FR3100883A1 (en) 2019-09-12 2021-03-19 Grtgaz Verification process and measuring device before welding of pipe components

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