FR2513965A1 - Head for thermo-bonding aluminium cover on glass container - applies pressure and heat via incompressible constant vol. pad interwoven with metal wires - Google Patents
Head for thermo-bonding aluminium cover on glass container - applies pressure and heat via incompressible constant vol. pad interwoven with metal wires Download PDFInfo
- Publication number
- FR2513965A1 FR2513965A1 FR8216845A FR8216845A FR2513965A1 FR 2513965 A1 FR2513965 A1 FR 2513965A1 FR 8216845 A FR8216845 A FR 8216845A FR 8216845 A FR8216845 A FR 8216845A FR 2513965 A1 FR2513965 A1 FR 2513965A1
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- Prior art keywords
- heat
- pressure
- containers
- pad
- metallic
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Classifications
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- 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
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
-
- 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
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
-
- 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
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
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- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
-
- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
-
- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/81451—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being adaptable to the surface of the joint
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
- B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
- B65B7/2842—Securing closures on containers
- B65B7/2878—Securing closures on containers by heat-sealing
-
- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
Description
L'invention se rapporte à un dispositif pour l'obturation de récipients en matière non déformable à la chaleur, de préférence de récipients en verre ou matière analogue au moyen d'obturations du type à opercules theriocollables en particulier opercules en feuille d'aluminiu. ou équivalent. The invention relates to a device for closing containers made of non-heat-deformable material, preferably glass containers or similar material by means of closures of the type with heat-sealable lids, in particular lids in aluminum foil. or equivalent.
Le dispositif selon l'invention comporte une tête de thermocollage présentant une surface de contact venant s'appuyer à pression sur le rebord de l'orifice du récipient, la tête de thermocollage possédant en outre une surface portante de fermeture et un coussinet de pression conducteur de la chaleur venant s'adapter sur les bords du récipient. The device according to the invention comprises a heat-sealing head having a contact surface pressing against the edge of the container orifice, the heat-sealing head further having a bearing closure surface and a conductive pressure pad heat coming to adapt to the edges of the container.
On connait déjà un type de têtes de thermocollage qui a fait ses preuves en pratique à bien des égards.We already know a type of fusing heads that has proven itself in practice in many ways.
Ces tetes de thermocollage présentent un coussinet de pression à fluide hydraulique. De cette manière le coussinet de pression peut s'adapter aux irrégularités de planéité que présentent les matières ou matériaux rigides et convenir pour obturer les récipients.These heat sealing heads have a pressure pad with hydraulic fluid. In this way the pressure pad can adapt to the irregularities of flatness presented by the rigid materials or materials and be suitable for sealing the containers.
L'utilisation d'un fluide présente l'inconvénient de nécessiter une chambre étanche approppriée et un remplissage en fluide le cas échéant problématique car le fluide doit être liquide à la température de thermocollage. Par ailleurs, la pression de fonctionnement peut conduire à des défauts d'étanchéité ou à la rupture de la surface portante de fermeture, occasionnant la sortie du fluide. The use of a fluid has the drawback of requiring a suitable sealed chamber and filling with fluid, if necessary problematic since the fluid must be liquid at the heat-bonding temperature. Furthermore, the operating pressure can lead to leaks or rupture of the bearing bearing surface, causing the fluid to exit.
Le but de l'invention ci-dessus consiste par conséquent à prévoir une tête de thermocollage selon la technique mentionnée ci-dessus, de construction simple, sans problème de fonctionnement et dans laquelle une sortie de liquide consécutive à une déchirure de la surface de fermeture et un défaut d'étanchéité dans une zone de liaison entre la surface de fermeture et
le corps de la tête de thermocollage est évitée.The object of the above invention therefore consists in providing a heat-bonding head according to the technique mentioned above, of simple construction, without operating problem and in which a liquid outlet following a tear in the closure surface and a leak in a connection zone between the closure surface and
the body of the fusing head is avoided.
On remédie à ces inconvénients par la solution apportée par l'invention selon laquelle on choisit comme pièce de transmission de pression un coussinet conformé en corps essentiellement solide. On évite de cette façon les inconvénients mentionnés ci-dessus et rencontrés dans les cas d'utilisation de coussinet de pression à fluide hydraulique. Un tel coussinet présente une -conductibîlité à la chaleur et résiste au maintien nécessaire à haute température. These drawbacks are remedied by the solution provided by the invention according to which a bearing shaped in the form of an essentially solid body is chosen as the pressure transmission part. This avoids the disadvantages mentioned above and encountered in the case of using a hydraulic fluid pressure pad. Such a pad exhibits heat conductivity and resists the maintenance required at high temperature.
A cette fin le corps solide est un corps essentiel
lement constant en volume présentant une faible aptitude à la déformation élastique par pression. Un coussinet présentant les caractéristiques essentielles ci-dessus peut par ces propriétés s'adapter de façon requise aux irrégularités minimes de planéité que présente le rebord d'ouverture d'un récipient à obturer et transmettre une pression suffisante à tous les endroits à coller.To this end the solid body is an essential body
slightly constant in volume with a low aptitude for elastic deformation by pressure. A pad with the above essential characteristics can by these properties adapt itself as required to the slight irregularities in flatness presented by the opening rim of a container to be closed and transmit sufficient pressure to all the places to be bonded.
Dans le mode de réalisation préféré, la pièce de transmission de pression sera réalisée sous la forme d'un tricot métallique ou analogue résultaet de la compression de fils métalliques ou analogues jusqu'à l'état de non déformation. Ce tricot métallique présente une résistance à la compression suffisante et, offre simultanément une élasticité donnée. In the preferred embodiment, the pressure transmission part will be produced in the form of a metallic knit or the like resulting from the compression of metallic threads or the like until the state of non-deformation. This metallic knitted fabric has sufficient compressive strength and simultaneously offers a given elasticity.
L'élasticité peut être déterminée par la force de compression à la fabrication. The elasticity can be determined by the compression force during manufacturing.
Par ailleurs une telle pièce de transmission de pression présente une haute tenue en température qui s'établit dans un ordre de grandeur bien plus élevé que les matériaux utilisés à cet effet comme par exemple les caoutchoucs ou silicones. Furthermore, such a pressure transmission part has a high temperature resistance which is established in an order of magnitude much higher than the materials used for this purpose such as for example rubbers or silicones.
Une autre forme de réalisation de l'invention, pour laquelle une protection indépendante est revendi quée consiste en un dispositif,de la technique ci-dessus dans lequel l'opercule d'obturation se compose d'un tissu dense de fils métalliques disposé du côté de la paroi génératrice de pression. Another embodiment of the invention, for which independent protection is claimed consists of a device, of the above technique in which the shutter seal consists of a dense fabric of metal wires arranged on the side of the pressure generating wall.
La largeur de la maille est très petite de manière à constituer en pratique une surface suffisamment fermée. Une telle obturation par opercule présente une résistance élevée à la flexion de façon à permettre des surcharges locales, pliures et autres que l'on ne peut éviter dans bien des cas en pratique et qui peuvent être absorbées sans déchirure par un tel tissu. Aussi, une surcharge locale ne peut-elle aisément provoquer une déchirure plus longue. The width of the mesh is very small so as to constitute in practice a sufficiently closed surface. Such a seal closure has a high resistance to bending so as to allow local overloads, folds and the like which cannot be avoided in many cases in practice and which can be absorbed without tearing by such a fabric. Also, a local overload cannot easily cause a longer tear.
Une autre forme de réalisation de l'invention consiste à laminer ou à cylindrer le tricot de fils. Another embodiment of the invention consists in laminating or rolling the knitted fabric.
Le tricot à mailles denses se resserre encore plus par le laminage de manière à présenter une surface supérieure plus lisse.The dense mesh knit is further tightened by rolling to provide a smoother upper surface.
Les modes de réalisation complémentaires de l'invention sont mentionnés dans les sous revendications. L'invention sera mieux et plus complètement décrite ci-après dans ses caractéristiques et particularités essentielles en référence aux dessins dans lesquels. The complementary embodiments of the invention are mentioned in the subclaims. The invention will be better and more completely described below in its essential characteristics and features with reference to the drawings in which.
la figure 1 est une vue en coupe transversale
d'une tête de thermocollage sans pièce de
transrission de pression.Figure 1 is a cross-sectional view
a fusing head without a piece of
pressure transfer.
la figure 2 est une vue en coupe transversale
partielle d'une tête de thermocollage dans
la forme de réalisation représentée en figure
1.Figure 2 is a cross-sectional view
partial of a fusing head in
the embodiment shown in figure
1.
la figure 3 est une représentation partielle
en coupe à partir de la figure 2 représentant
les moyens de sollicitation de la pièce de
transmission de pression. Figure 3 is a partial representation
in section from Figure 2 showing
the means of biasing the workpiece
pressure transmission.
la figure 4 est une vue partielle en coupe
et de profil avec écorché de la pièce de trans
mission de pression.Figure 4 is a partial sectional view
and in profile with cutaway of the trans piece
pressure mission.
la figure 5 est une vue en coupe d'un opercule
d'obturation.Figure 5 is a sectional view of a cover
shutter.
la figure 6 est une vue schématique du détail
A de la figure 4.Figure 6 is a schematic view of the detail
A in Figure 4.
La tête de thermocollage 1 représentée en coupe en figure 1 équipée de ses principales pièces composantes appartient à un dispositif de thermocollage destiné à fermer des récipients en scellant à étanchéité sur le goulot des obturations du type souple, par exemple des opercules 16
La tête de thermocùllage 1 comporte un corps
2 présentant sur sa paroi frontale 3 une surface de thermocollage et de pression 4 . La tête de thermocollage 1 est de préférence prévue pour l'obturation de récipients à ouverture de section circulaire.The thermobonding head 1 shown in section in FIG. 1, equipped with its main component parts, belongs to a thermobonding device intended to close containers by sealing the sealing of flexible type closures, for example lids 16, on the neck.
The thermal head 1 has a body
2 having on its front wall 3 a heat-bonding and pressure surface 4. The heat-sealing head 1 is preferably provided for closing containers with an opening of circular section.
On a représenté en pointillé sous la référence 5 un dispositif de chauffage conformé en ceinture annulaire. There is shown in dotted lines under the reference 5 a heating device shaped as an annular belt.
Le corps 2 présente au niveau de sa paroi frontale 3 une rainure périphérique annulaire 6 qui reçoit une pièce 7 de transmission de pression. The body 2 has at its front wall 3 an annular peripheral groove 6 which receives a piece 7 of pressure transmission.
La tête de thermocollage 1 est représentée en figure 1 sans cette pièce 7 de transmission de pression. A titre de surface portante et de fermeture on prévoit une feuille de fermeture 8 qui est solidarisée par collage entre le corps 2 et une rondelle de maintien 9 disposée au niveau du bord périphérique du corps 2
La rainure annulaire 6 adaptée à la pièce 7 de transmission de pression possède une forme adaptée à ladite rainure. On a représenté en figure 4 un mode de réalisation quelque peu modifie de Id pièce 7 de transmission de pression dont la forme de section au niveau de son bord intérieur permet de l'adapter à la section du bord d'ouverture d'un récipient à obturer. De même, les pièces 7 de transmission de pression représentées en figures 2 et 3 présentent une section de caractéristiques essentielles identiques à celle de la figure 4.The fusing head 1 is shown in FIG. 1 without this part 7 for transmitting pressure. As a bearing and closing surface, a closing sheet 8 is provided which is secured by gluing between the body 2 and a retaining washer 9 disposed at the peripheral edge of the body 2
The annular groove 6 adapted to the part 7 for transmitting pressure has a shape adapted to said groove. FIG. 4 shows a somewhat modified embodiment of part 7 of pressure transmission, the cross-sectional shape of which at its internal edge makes it possible to adapt it to the section of the opening edge of a container for shut off. Likewise, the pressure transmission parts 7 represented in FIGS. 2 and 3 have a section of essential characteristics identical to that of FIG. 4.
La pièce de transmission de pression est conformée en un corps solide ctest-a-dire de forme déterminée. The pressure transmission part is formed into a solid body, that is to say of determined shape.
Elle se compose d'un tricot métallique ou analogue formé de fils métalliques 10 ou de orins entrelacés.It consists of a metallic knit or the like formed of metallic threads 10 or of intertwined ropes.
Ces fils fins, étroitement enchevetrés, sont comprimés lors de la fabrication de la pièce de pression 7 de manière à constituer un élément de forme déterminée.These fine threads, closely entangled, are compressed during the manufacture of the pressure piece 7 so as to constitute an element of determined shape.
La pièce de pression 7 garde de cette façon un volume constant. Elle présente pourtant une faible aptitude minimale à la déformation élastique par compression grâce à laquelle la pièce 7 s'adapte aux petits défauts de planéité du rebord de fermeture des récipients à obturer. Une coupe d'un tel rebord 11 est visible en figure 2.The pressure piece 7 thus keeps a constant volume. However, it has a low minimum capacity for elastic deformation by compression thanks to which the part 7 adapts to small flatness defects of the closure rim of the containers to be closed. A section of such a rim 11 is visible in FIG. 2.
Aussi bien la pièce 7 de transmission de pression que le plan de fermeture 8 peuvent s'adapter, au moins approximativement, à la forme de section du rebord 11, ainsi qu'on peut le constater sur les figures 2 à 5. Comme représenté en figure 1, le plan de fermeture 8 peut présenter au niveau de la pièce de pression 7 une saillie périphérique annulaire bombée 8a. Both the pressure transmission part 7 and the closure plane 8 can adapt, at least approximately, to the cross-sectional shape of the rim 11, as can be seen in FIGS. 2 to 5. As shown in Figure 1, the closure plane 8 may have at the pressure piece 7 a curved annular peripheral projection 8a.
Le tricot métallique de la pièce de pression 7 se compose de préférence et essentiellement d'un mélange de fils à élasticité procurée par effet de ressort ou analogues d'une part et de fils bons conducteurs de la chaleur ou analogues d'autre part, de préférence respectivement en fils d'acier et en fils de cuivre. The metallic knitted fabric of the pressure piece 7 preferably and essentially consists of a mixture of yarns with elasticity provided by the effect of spring or the like on the one hand and yarns which are good conductors of heat or the like on the other hand, preferably steel wire and copper wire respectively.
Ceci est représenté de façon plus schématique en figure 6. Dans cette figure les fils d'acier 12 sont figurés en lignes brisées et les fils de cuivre en traits mixtes. En réalité les fils présentent une densité supérieure à celle représentée en figure 6. L'utilisation d'un tel mélange de fils procure à la pièce de pression 7 d'une part une bonne élasticité fournie par les fils d'acier 12 et d'autre part une bonne conductibilité thermique par les fils de cuivre 13. La pièce de transmission de pression 7 est en particulier conformée en volume annulaire par compression des fils d'acier et de cuivre.This is shown more schematically in Figure 6. In this figure the steel wires 12 are shown in broken lines and the copper wires in dashed lines. In reality the wires have a density greater than that shown in FIG. 6. The use of such a mixture of wires provides the pressure piece 7 on the one hand with a good elasticity provided by the steel wires 12 and on the other hand good thermal conductivity by the copper wires 13. The pressure transmission part 7 is in particular shaped in annular volume by compression of the steel and copper wires.
La pièce 7 de pression (figure 3) peut être logée à coulissement dans la rainure annulaire 6 en sens opposée à la pression et montée en rappel élastique au moyen de ressorts 15 présents sur sa face arrière. The pressure piece 7 (FIG. 3) can be slidably housed in the annular groove 6 in the opposite direction to the pressure and mounted in elastic return by means of springs 15 present on its rear face.
On ménage de cette manière en plus de l'élasticité propre de la pièce 7 de pression une mobilité globale donnée et ainsi une faculté d'adaptation de la pièce de pression 7 aux différents rebords des récipients et analogues et une compensation en cas d'un éventuel refoulement de la pièce de transmission de pression pendant le fonctionnement.In this way, in addition to the inherent elasticity of the pressure piece 7, a given overall mobility is obtained, and thus an ability to adapt the pressure piece 7 to the different rims of the containers and the like and compensation in the event of a possible discharge of the pressure transmission part during operation.
La face supérieure de la pièce 7 opposée en position de fonctionnement au rebord 11 du récipient pourrait le cas échéant, moyennant une qualité de surface approppriée, servir de face de pression et de soudage. The upper face of the part 7 opposite in operating position to the rim 11 of the container could if necessary, by means of a suitable surface quality, serve as the pressure and welding face.
Le cas échéant, on pourrait aussi y prévoir un revete- ment Selon le mode de réalisation préféré, le plan de fermeture 8 affecte une forme à peu près annulaire qui peut être conformée en une surface presque plate (figure 1) ou préformée (figure 5).If necessary, a coating could also be provided there. According to the preferred embodiment, the closure plane 8 has a roughly annular shape which can be shaped into an almost flat (FIG. 1) or preformed (FIG. 5) surface. ).
En utilisant une pièce de pression 7 de forme déterminée, un contact étroit de la feuille de fermeture 8 avec le corps 2 s'avère inutile. Une immobilisation satisfaisante suffit. Ceci est obtenu par exemple au moyen d'un élément central de serrage 17. By using a pressure piece 7 of determined shape, close contact of the closure sheet 8 with the body 2 is unnecessary. A satisfactory immobilization is sufficient. This is obtained for example by means of a central clamping element 17.
Le plan de fermeture S pourra de préférence être constitué par un tissu dense et étendu de fils métal I i- ques de manière à présenter une grande résistance au pliage et à la flexion. Ce tissu de fils métalliques présente une largeur de maille très petite de façon à se comporter en pratique comme une surface fermée. The closure plane S may preferably be constituted by a dense and extended fabric of metal wires I ic so as to have a high resistance to bending and to bending. This fabric of metal wires has a very small mesh width so as to behave in practice like a closed surface.
Le cas échéant, le tissu métallique pourra être cylindré après sa confection de manière à réaliser une disposition particulièrement dense des fils et une surface lisse et étendue.If necessary, the metallic fabric can be rolled after its fabrication so as to produce a particularly dense arrangement of the wires and a smooth and extended surface.
Le tête de thermocollage 1 est adaptée au thermocollage de récipients en verre, en fer blanc et autres conformés dans une matière indéformable å la chaleur grâce à l'aptitude et à l'adaptation élastique de son élément de pression. The thermobonding head 1 is suitable for the thermobonding of glass, tinplate and other containers shaped in a non-deformable material to heat thanks to the ability and the elastic adaptation of its pressure element.
La combinaison de la pièce de pression ; de forme déterminée avec le plan de fermeture r constituée d'un tissu dense de fils métalliques stavere particulièrement avantageuse. La forme détermine de la pièce de pression 7 permet également ou facilite tout au moins l'utilisation du plan de fermeture 8 en tissu métallique dense car il est possible de renoncer à un coussinet de pression en fluide hydraulique. Le plan de fermeture 8 en tissu métallique dense pour lequel une protection juridique indépendante est demandée s'avère insensible aux surcharges et aux endommagements à la manière de feuilles de tôle continues ou analogues. The combination of the pressure piece; of definite shape with the closing plane r made up of a dense fabric of stavere metal wires which is particularly advantageous. The determined shape of the pressure piece 7 also allows or at least facilitates the use of the closure plane 8 made of dense metallic fabric because it is possible to dispense with a pressure pad of hydraulic fluid. The closure plan 8 in dense metallic fabric for which independent legal protection is requested proves insensitive to overloads and damage in the manner of continuous sheet metal sheets or the like.
Tous les détails et remarques dans la description, les revendications et les dessins, pris isolément ou en combinaison entrent dans le cadre de la présente invention. All the details and remarks in the description, the claims and the drawings, taken individually or in combination, are within the scope of the present invention.
Claims (8)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813139639 DE3139639C2 (en) | 1981-08-03 | 1981-10-06 | Device for closing containers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2513965A1 true FR2513965A1 (en) | 1983-04-08 |
Family
ID=6143479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8216845A Withdrawn FR2513965A1 (en) | 1981-10-06 | 1982-10-06 | Head for thermo-bonding aluminium cover on glass container - applies pressure and heat via incompressible constant vol. pad interwoven with metal wires |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2513965A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0203032A1 (en) * | 1985-05-17 | 1986-11-26 | Alcan Rorschach AG | Sealing head |
| FR2826336A1 (en) * | 2001-06-20 | 2002-12-27 | Automatisme Assistance | Machine for fitting film over rim of rigid pot comprises vacuum chamber containing head consisting of heated metal block, sheet metal ring and elastomeric cushion between them to melt adhesive on pot rim |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3067653A (en) * | 1960-05-05 | 1962-12-11 | Lesser Mortimer | Apparatus for closing containers |
| FR2388761A1 (en) * | 1977-04-25 | 1978-11-24 | Morin Sa Charles | Glass packing sealing tool - has sealing face with elastic joint of good heat conductivity |
| FR2419220A1 (en) * | 1978-03-10 | 1979-10-05 | Emballage Ste Gle Pour | Vessel cap heat-sealing head - has distorting mattress of flexible wires acting against cap and held by ring at periphery |
| WO1983000472A1 (en) * | 1981-08-03 | 1983-02-17 | Bruncher, Bernard | Knitted composite material, shaping of such material and part thus formed |
-
1982
- 1982-10-06 FR FR8216845A patent/FR2513965A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3067653A (en) * | 1960-05-05 | 1962-12-11 | Lesser Mortimer | Apparatus for closing containers |
| FR2388761A1 (en) * | 1977-04-25 | 1978-11-24 | Morin Sa Charles | Glass packing sealing tool - has sealing face with elastic joint of good heat conductivity |
| FR2419220A1 (en) * | 1978-03-10 | 1979-10-05 | Emballage Ste Gle Pour | Vessel cap heat-sealing head - has distorting mattress of flexible wires acting against cap and held by ring at periphery |
| WO1983000472A1 (en) * | 1981-08-03 | 1983-02-17 | Bruncher, Bernard | Knitted composite material, shaping of such material and part thus formed |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0203032A1 (en) * | 1985-05-17 | 1986-11-26 | Alcan Rorschach AG | Sealing head |
| AU582650B2 (en) * | 1985-05-17 | 1989-04-06 | Alcan Rorschach A.G. | Sealing head |
| FR2826336A1 (en) * | 2001-06-20 | 2002-12-27 | Automatisme Assistance | Machine for fitting film over rim of rigid pot comprises vacuum chamber containing head consisting of heated metal block, sheet metal ring and elastomeric cushion between them to melt adhesive on pot rim |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |