FR2691400A1 - Heated mould tools - have layer of conducting carbon fibres, parallel, equidistant, connected to low voltage via bar terminals giving uniform reproducible heating - Google Patents

Heated mould tools - have layer of conducting carbon fibres, parallel, equidistant, connected to low voltage via bar terminals giving uniform reproducible heating Download PDF

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Publication number
FR2691400A1
FR2691400A1 FR9206211A FR9206211A FR2691400A1 FR 2691400 A1 FR2691400 A1 FR 2691400A1 FR 9206211 A FR9206211 A FR 9206211A FR 9206211 A FR9206211 A FR 9206211A FR 2691400 A1 FR2691400 A1 FR 2691400A1
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France
Prior art keywords
heating
fibers
punch
tools
tool
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Granted
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FR9206211A
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French (fr)
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FR2691400B1 (en
Inventor
Blanc Eric
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Faurecia Sieges dAutomobile SAS
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Bertrand Faure Automobile SA
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Application filed by Bertrand Faure Automobile SA filed Critical Bertrand Faure Automobile SA
Priority to FR9206211A priority Critical patent/FR2691400B1/en
Publication of FR2691400A1 publication Critical patent/FR2691400A1/en
Application granted granted Critical
Publication of FR2691400B1 publication Critical patent/FR2691400B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/145—Carbon only, e.g. carbon black, graphite
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • B29C51/145—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets having at least one layer of textile or fibrous material combined with at least one plastics layer
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/42—Heating or cooling
    • B29C51/428—Heating or cooling of moulds or mould parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/062—Press plates
    • B30B15/064—Press plates with heating or cooling means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/36—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heating conductor embedded in insulating material
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C2035/0211—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould resistance 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/049—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using steam or damp
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • B29C51/082—Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould parts
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/42—Heating or cooling
    • B29C51/421—Heating or cooling of preforms, specially adapted for thermoforming
    • B29C51/424—Heating or cooling of preforms, specially adapted for thermoforming using a heated fluid
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/005—Heaters using a particular layout for the resistive material or resistive elements using multiple resistive elements or resistive zones isolated from each other
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/011—Heaters using laterally extending conductive material as connecting means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/029—Heaters specially adapted for seat warmers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Mould heated tooling consisting of a hollow tool (1) and cover (2) has a layer of conducting fibres (3) connected between two current carrying terminals (4,5) as a means of heating. The fibres are rectilinear, parallel and equidistant. The terminals (4,5) are formed by bars perpendicular to the fibres, which are carbon embedded in fibre glass reinforced synthetic resin. Also claimed is thermoforming tooling with this type of tool heating. USE/ADVANTAGE - Heated mould tools partic. for prodn. of spot cushions using P.U. foam or thermoforming caps. Produces uniform and reproducible heating compared to external resistance or conduction heating.

Description

La présente invention concerne un outillage chauffant du type à outils coopérants tels que partie creuse de moule et couvercle, ou poinçon et matrice, ces outillages pouvant notamment être utilisés pour le moulage de matelassures de sièges, par exemple en mousse de polyuréthane, ou pour le thermoformage des coiffes qui sont destinées à recouvrir ces matelassures. The present invention relates to a heating tool of the type with cooperating tools such as hollow mold part and cover, or punch and die, these tools can in particular be used for molding seat pads, for example polyurethane foam, or for thermoforming of the caps which are intended to cover these padding.

Dans le cas de la fabrication des matelassures par moulage, les outillages chauffants utilisés actuellement sont constitués d'un moule en tôle d'acier ou en aluminium, comprenant une partie creuse et un couvercle. La partie creuse est chauffée au moyen de résistances électriques ou par circulation d'un fluide caloporteur par exemple. Ces outillages chauffants présentent des inconvénients, car ces modes de chauffage n'assurent pas une bonne répartition de la température d'un point à l'autre du moule. In the case of the manufacture of padding by molding, the heating tools currently used consist of a mold made of sheet steel or aluminum, comprising a hollow part and a cover. The hollow part is heated by means of electrical resistances or by circulation of a heat transfer fluid for example. These heating tools have drawbacks, because these heating modes do not ensure a good distribution of the temperature from one point to the other of the mold.

Quant au thermoformage, on connaît par le document
EP 0263 798 un outillage chauffant dans lequel le poinçon est chauffé par conduction, à partir d'une chambre à vapeur sous pression, et la matrice est chauffée par circulation d'un fluide caloporteur.As for thermoforming, we know from the document
EP 0263 798 a heating tool in which the punch is heated by conduction, from a steam chamber under pressure, and the matrix is heated by circulation of a heat transfer fluid.

Cet outillage chauffant présente également des inconvénients, car les températures obtenues sur la surface du poinçon ne sont ni très précises ni très homogènes, et la gamme de températures à l'intérieur de laquelle le réglage est possible n'est pas très étendue. En outre, comme les poinçons et les matrices sont obtenus en tôlerie, les formes ne sont pas strictement identiques d'un outillage à l'autre. This heating tool also has drawbacks, since the temperatures obtained on the surface of the punch are neither very precise nor very homogeneous, and the range of temperatures within which the adjustment is possible is not very wide. In addition, as the punches and dies are obtained in sheet metal, the shapes are not strictly identical from one tool to another.

Cela ne permet pas de fabriquer un grand nombre d'outillages identiques, nécessaires à une fabrication en grandes séries.This does not make it possible to manufacture a large number of identical tools, necessary for mass production.

De plus, ces outillages sont lourds et coûteux.In addition, these tools are heavy and expensive.

Le but de la présente invention est de remédier à ces inconvénients de la technique antérieure, en pouvant en particulier supprimer l'apport de chaleur par résistances externes au moule ou par conduction, tout en obtenant un chauffage uniforme et une bonne reproductibilité d'un outillage à l'autre. The object of the present invention is to remedy these drawbacks of the prior art, by being able in particular to suppress the supply of heat by external resistances to the mold or by conduction, while obtaining uniform heating and good reproducibility of a tool. to the other.

A cet effet, un outillage conforme à l'invention, du type mentionne au début, est caractérisé en ce qu'il comporte comme moyens de chauffage desdits outils au moins une nappe de fibres conductrices connectées entre deux bornes d'amenée de courant électrique. To this end, a tool according to the invention, of the type mentioned at the beginning, is characterized in that it comprises as means for heating said tools at least one layer of conductive fibers connected between two electrical current supply terminals.

Il peut encore se caractériser en ce que lesdites fibres sont sensiblement rectilignes, parallèles et équidistantes, et en ce que lesdites bornes sont constituées par des barres perpendiculaires auxdites fibres. It can also be characterized in that said fibers are substantially rectilinear, parallel and equidistant, and in that said terminals are constituted by bars perpendicular to said fibers.

Les fibres chauffantes, avantageusement en carbone, peuvent être disposées en une nappe noyée dans une résine synthétique, éventuellement armée de fibres de verre ou analogue. The heating fibers, advantageously made of carbon, can be arranged in a sheet embedded in a synthetic resin, possibly reinforced with glass fibers or the like.

Deux applications de l'invention vont maintenant être décrites à titre d'exemples nullement limitatifs, avec référence aux figures du dessin ci-annexé dans lequel
- la figure 1 est une vue en coupe d'un moule conforme à l'invention
- la figure 2 est une vue en plan de la partie creuse de ce moule
- la figure 3 est une vue schématique en coupe d'un outillage de thermoformage et de collage conforme à l'invention ; et
- la figure 4 est une vue en plan du poinçon de cet outillage.Two applications of the invention will now be described by way of non-limiting examples, with reference to the figures in the attached drawing in which
- Figure 1 is a sectional view of a mold according to the invention
- Figure 2 is a plan view of the hollow part of this mold
- Figure 3 is a schematic sectional view of a thermoforming and bonding tool according to the invention; and
- Figure 4 is a plan view of the punch of this tool.

Sur les figures 1 et 2, la partie creuse du moule a été référencée 1, et son couvercle 2. Les fibres de chauffage en carbone sont référencées 3. Elles sont tendues en nappes de fibres parallèles et également espacées entre des barres d'amenée de courant basse tension qui, pour la partie creuse 1 du moule, sont référencées en 4 et 5 (figure 2). In FIGS. 1 and 2, the hollow part of the mold has been referenced 1, and its cover 2. The carbon heating fibers are referenced 3. They are stretched in sheets of parallel fibers and also spaced between supply bars of low voltage current which, for the hollow part 1 of the mold, are referenced in 4 and 5 (FIG. 2).

La tension du courant électrique peut être de l'ordre de 6 à 50 V. The voltage of the electric current can be of the order of 6 to 50 V.

Comme on le voit bien sur la figure 1, la nappe de chauffage de la partie creuse du moule est conformée de sorte à suivre au plus près le profil de la surface active du moule, c' est-à-dire la zone limitrophe destinée à chauffer le produit moulé 6. Il en est bien entendu de même pour le couvercle 2. On obtiendra ainsi un chauffage extrêmement uniforme du produit moulé. La température atteinte dans le moule peut être facilement située dans une fourchette de 20 à 1600C.  As can be clearly seen in FIG. 1, the heating sheet of the hollow part of the mold is shaped so as to follow as closely as possible the profile of the active surface of the mold, that is to say the bordering zone intended for heating the molded product 6. It is of course the same for the cover 2. This will give extremely uniform heating of the molded product. The temperature reached in the mold can be easily located in the range of 20 to 1600C.

Les parties 1 et 2 du moule sont avantageusement constituées d'une résine synthétique armée de fibres de verre ou analogues. Cette résine constitue bien entendu un isolant électrique pour les fibres de carbone 3 qui y sont noyées. Parts 1 and 2 of the mold are advantageously made of a synthetic resin reinforced with glass fibers or the like. This resin is of course an electrical insulator for the carbon fibers 3 which are embedded therein.

Dans l'outillage de thermoformage des figures 3 et 4, on a référencé en 11 et 12 une matrice et un poinçon à complémentarité de formes, utilisés ici pour le thermoformage d'un matériau 10 tel qu'une coiffe pour siège de véhicule, ameublement ou autres. Bien entendu, cette coiffe 10 peut être constituée d'un ou plusieurs éléments, chaque élément étant lui-même constitué d'une bande de tissu pouvant être assemblée avec un matériau de faible épaisseur tel que par exemple la mousse polyuréthane, et éventuellement assemblée à une doublure textile. Les fibres de chauffage de la matrice 11 et du poinçon 12 ont été référencées en 3. Les fibres 3 du poinçon sont également représentées sur la vue en plan de la figure 4. Les fibres sont alimentées en courant par des barres de connexion 4 et 5. Des barres analogues 4', 5' sont prévues pour la nappe de fibres destinées à chauffer la matrice 11. In the thermoforming tool of FIGS. 3 and 4, reference is made in 11 and 12 to a matrix and a punch with complementary shapes, used here for thermoforming a material 10 such as a cover for a vehicle seat, furniture. or others. Of course, this cap 10 can be made up of one or more elements, each element itself being made up of a strip of fabric which can be assembled with a thin material such as for example polyurethane foam, and optionally assembled a textile lining. The heating fibers of the matrix 11 and of the punch 12 have been referenced in 3. The fibers 3 of the punch are also shown in the plan view of FIG. 4. The fibers are supplied with current by connection bars 4 and 5 Similar bars 4 ′, 5 ′ are provided for the sheet of fibers intended to heat the matrix 11.

La coiffe peut être thermoformée uniquement par chauffage, mais l'utilisation de vapeur améliore le thermoformage. Le poinçon 12 est alors complété par un fond 13' de sorte à constituer une chambre à vapeur 13 sensiblement à pression atmosphérique et contiguë à la surface active du poinçon. La vapeur s'échappe de la chambre 13 par des orifices 7 de la surface active du poinçon, cette vapeur étant amenée dans la chambre par une conduite 14, les condensats étant évacués par une sortie 15. The cap can be thermoformed only by heating, but the use of steam improves thermoforming. The punch 12 is then completed by a bottom 13 'so as to constitute a steam chamber 13 substantially at atmospheric pressure and contiguous to the active surface of the punch. The steam escapes from the chamber 13 through orifices 7 in the active surface of the punch, this vapor being brought into the chamber by a pipe 14, the condensates being discharged through an outlet 15.

Le chauffage du poinçon 12, assuré par les fibres 3, empêche la vapeur de se condenser dans la chambre 13.  The heating of the punch 12, provided by the fibers 3, prevents the vapor from condensing in the chamber 13.

Claims (9)

REVENDICATIONS 1. Outillage chauffant du type à outils coopérants tels que partie creuse de moule (1) et couvercle (2), ou poinçon (12) et matrice (11), caractérisé en ce qu'il comporte comme moyens de chauffage desdits outils au moins une nappe de fibres conductrices (3) connectées entre deux bornes (4, 5 ; 4', 5') d'amenée de courant électrique. 1. Heating tool of the type with cooperating tools such as hollow mold part (1) and cover (2), or punch (12) and die (11), characterized in that it comprises as means of heating said tools at least a sheet of conductive fibers (3) connected between two terminals (4, 5; 4 ', 5') for supplying electric current. 2. Outillage selon la revendication 1, caractérisé en ce que lesdites fibres (3) sont sensiblement rectilignes, parallèles et équidistantes, et en ce que lesdites bornes sont constituées par des barres (4, 5 ; 4', 5') perpendiculaires auxdites fibres. 2. Tool according to claim 1, characterized in that said fibers (3) are substantially rectilinear, parallel and equidistant, and in that said terminals are constituted by bars (4, 5; 4 ', 5') perpendicular to said fibers . 3. Outillage selon la revendication 1 ou 2, caractérisé en ce que lesdites fibres (3) sont des fibres de carbone. 3. Tool according to claim 1 or 2, characterized in that said fibers (3) are carbon fibers. 4. Outillage selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite nappe de fibres (3) est noyée dans une résine synthétique, éventuellement armée de fibres de verre ou analogue. 4. Tool according to any one of the preceding claims, characterized in that said sheet of fibers (3) is embedded in a synthetic resin, possibly reinforced with glass fibers or the like. 5. Outillage selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdites bornes (4, 5 ; 4', 5') d'amenée sont connectées à une source d'alimentation en courant à basse tension. 5. Tool according to any one of the preceding claims, characterized in that said terminals (4, 5; 4 ', 5') of supply are connected to a low voltage current supply source. 6. Outillage selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite nappe est conformée de sorte à suivre au plus près le profil de la surface active de l'outil concerné. 6. Tool according to any one of the preceding claims, characterized in that said ply is shaped so as to follow as closely as possible the profile of the active surface of the tool concerned. 7. Outillage de moulage, du type comportant une partie creuse (1) et un couvercle (2), caractérisé en ce qu'il comporte des moyens de chauffage (3) conformes à l'une quelconque des revendications 1 à 6, pour le chauffage de ladite partie creuse (1) et/ou du couvercle (2). 7. Molding tools, of the type comprising a hollow part (1) and a cover (2), characterized in that it comprises heating means (3) according to any one of claims 1 to 6, for the heating said hollow part (1) and / or the cover (2). 8. Outillage de thermoformage du type comportant une matrice (11) et un poinçon (12) à concordance de formes et aptes à enserrer entre eux un matériau à thermoformer et/ou à coller (10), caractérisé en ce qu'il comporte des moyens de chauffage (3) conformes à l'une quelconque des revendications 1 à 6, pour le chauffage de ladite matrice (11) et/ou du poinçon (12). 8. Thermoforming tools of the type comprising a matrix (11) and a punch (12) with matching shapes and capable of enclosing between them a material to be thermoformed and / or bonded (10), characterized in that it comprises heating means (3) according to any one of claims 1 to 6, for heating said die (11) and / or the punch (12). 9. Outillage selon la revendication 8, caractérisé en ce que ledit poinçon (12) est percé d'orifices (7) communiquant avec une chambre à vapeur (13), sensiblement à pression atmosphérique, et contiguë à la surface active du poinçon.  9. Tool according to claim 8, characterized in that said punch (12) is pierced with orifices (7) communicating with a steam chamber (13), substantially at atmospheric pressure, and contiguous to the active surface of the punch.
FR9206211A 1992-05-21 1992-05-21 HEATING TOOLS, MOLDING AND THERMOFORMING TOOLS USING THIS HEATING TOOL. Expired - Lifetime FR2691400B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9206211A FR2691400B1 (en) 1992-05-21 1992-05-21 HEATING TOOLS, MOLDING AND THERMOFORMING TOOLS USING THIS HEATING TOOL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9206211A FR2691400B1 (en) 1992-05-21 1992-05-21 HEATING TOOLS, MOLDING AND THERMOFORMING TOOLS USING THIS HEATING TOOL.

Publications (2)

Publication Number Publication Date
FR2691400A1 true FR2691400A1 (en) 1993-11-26
FR2691400B1 FR2691400B1 (en) 1999-07-09

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FR (1) FR2691400B1 (en)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
WO1997040647A1 (en) * 1996-04-19 1997-10-30 Thermion Systems International Method for heating a tooling die
EP1755850A1 (en) * 2004-06-09 2007-02-28 Industrial Composites Engineering Pty Ltd Method for forming or curing polymer composites
WO2008067809A2 (en) * 2006-12-07 2008-06-12 Fachhochschule Dortmund Mould tool for the de novo moulding or remoulding of components made from thermally influenceable materials
AU2005251829C1 (en) * 2004-06-09 2011-02-03 Industrial Composites Engineering Pty Ltd Method for forming or curing polymer composites
WO2013034137A3 (en) * 2011-09-08 2013-06-20 Npc-Meier Gmbh Moulding press/laminator

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GB1003337A (en) * 1962-03-07 1965-09-02 Max Himmelheber Improvements in or relating to fibre-boards
GB1366148A (en) * 1972-11-08 1974-09-11 Wredden J V H Electrical panel heater
GB1454394A (en) * 1973-02-22 1976-11-03 Nat Res Dev Heating panels
GB1460449A (en) * 1973-02-22 1977-01-06 Secr Defence Moulding apparatus
EP0164259A2 (en) * 1984-06-01 1985-12-11 Scott C. Holden Surface temperature control system
EP0218038A1 (en) * 1985-09-14 1987-04-15 Dunlop Limited Mould for the production of vacuum-formed, trim-covered articles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1003337A (en) * 1962-03-07 1965-09-02 Max Himmelheber Improvements in or relating to fibre-boards
GB1366148A (en) * 1972-11-08 1974-09-11 Wredden J V H Electrical panel heater
GB1454394A (en) * 1973-02-22 1976-11-03 Nat Res Dev Heating panels
GB1460449A (en) * 1973-02-22 1977-01-06 Secr Defence Moulding apparatus
EP0164259A2 (en) * 1984-06-01 1985-12-11 Scott C. Holden Surface temperature control system
EP0218038A1 (en) * 1985-09-14 1987-04-15 Dunlop Limited Mould for the production of vacuum-formed, trim-covered articles

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997040647A1 (en) * 1996-04-19 1997-10-30 Thermion Systems International Method for heating a tooling die
US6018141A (en) * 1996-04-19 2000-01-25 Thermion Systems International Method for heating a tooling die
EP1755850A1 (en) * 2004-06-09 2007-02-28 Industrial Composites Engineering Pty Ltd Method for forming or curing polymer composites
US8088237B2 (en) 2004-06-09 2012-01-03 Industrial Composites Engineering Pty Ltd Method for forming or curing polymer composites
AU2005251829C1 (en) * 2004-06-09 2011-02-03 Industrial Composites Engineering Pty Ltd Method for forming or curing polymer composites
EP1755850A4 (en) * 2004-06-09 2008-08-20 Ind Composites Engineering Pty Method for forming or curing polymer composites
DE202007019103U1 (en) 2006-12-07 2010-07-29 Fachhochschule Dortmund Forming tool for the shaping or shaping of components made of thermally influenced materials
WO2008067809A3 (en) * 2006-12-07 2008-07-31 Fachhochschule Dortmund Mould tool for the de novo moulding or remoulding of components made from thermally influenceable materials
WO2008067809A2 (en) * 2006-12-07 2008-06-12 Fachhochschule Dortmund Mould tool for the de novo moulding or remoulding of components made from thermally influenceable materials
RU2451598C2 (en) * 2006-12-07 2012-05-27 Фибретемп ГмбХ & Ко.КГ Mould for primary shaping in plastic deformation of parts from materials yielding to thermal effects
US8931751B2 (en) 2006-12-07 2015-01-13 Fibertemp GmbH & Co.KG Molding tool for original shaping or reshaping of components composed of materials that can be thermally influenced
DE102006058198C5 (en) * 2006-12-07 2018-01-18 Fibretemp Gmbh & Co. Kg Electrically heated mold in plastic construction
WO2013034137A3 (en) * 2011-09-08 2013-06-20 Npc-Meier Gmbh Moulding press/laminator

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