FR2903078A1 - Rectangular shaped container e.g. food tray, sealing or covering device, has movable slide including separating strip that moves with respect to plane defined by frame between operating and retracting positions - Google Patents

Rectangular shaped container e.g. food tray, sealing or covering device, has movable slide including separating strip that moves with respect to plane defined by frame between operating and retracting positions Download PDF

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Publication number
FR2903078A1
FR2903078A1 FR0652722A FR0652722A FR2903078A1 FR 2903078 A1 FR2903078 A1 FR 2903078A1 FR 0652722 A FR0652722 A FR 0652722A FR 0652722 A FR0652722 A FR 0652722A FR 2903078 A1 FR2903078 A1 FR 2903078A1
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France
Prior art keywords
sealing
frame
slide
bar
matrix
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Granted
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FR0652722A
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French (fr)
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FR2903078B1 (en
Inventor
Jean Pierre Schurmann
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TECHNITRANS SARL
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TECHNITRANS SARL
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Priority to FR0652722A priority Critical patent/FR2903078B1/en
Publication of FR2903078A1 publication Critical patent/FR2903078A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/20Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/53Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/816General 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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167Quick change joining tools or surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/84Specific machine types or machines suitable for specific applications
    • B29C66/841Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • B29C66/8412Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different length, width or height
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/84Specific machine types or machines suitable for specific applications
    • B29C66/841Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • B29C66/8412Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different length, width or height
    • B29C66/84121Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different length, width or height of different width
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B59/00Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/003Arrangements to enable adjustments related to the packaging material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00Closing containers or receptacles after filling
    • B65B7/16Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/162Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means
    • B65B7/164Securing by heat-sealing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/712Containers; Packaging elements or accessories, Packages

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

The device has a die constituted of a frame that is defined by two longitudinal arms (2, 3) connected to each other by a fixed cross-piece and a movable slide (5). The slide moves in translation between the arms and includes a longitudinal separating strip (6) having a length lesser than that of the arms to define a part of the arms and the slide. The strip moves with respect to a plane defined by the frame between an operating position in which a free end (9) of the strip cooperates with the cross-piece, and an retracting position in which the strip is suspended at the slide.

Description

DISPOSITIF POUR SCELLER UN RECIPIENT DE FORME RECTANGULAIRE AVEC UN FILMDEVICE FOR SEALING A RECTANGULAR RECIPIENT WITH A FILM

THERMO-SOUDABLE. DOMAINE TECHNIQUE 5 L'invention se rapporte au domaine du conditionnement étanche d'articles, notamment alimentaires, à l'intérieur de récipients de forme sensiblement rectangulaire. De tels récipients se présentent généralement sous la forme de barquettes réalisées le plus souvent en matière plastique, et dont l'ouverture de remplissage est ensuite obturée au moyen 10 d'un film plastique ou composite. Un tel dispositif comprend notamment une matrice au sein de laquelle on positionne le récipient rempli de son contenu, et un organe de scellement chauffant, mobile par rapport à la matrice, et permettant de thermo-souder le film avec un rabat supérieur du récipient. L'invention vise plus particulièrement un agencement particulier de la matrice permettant d'utiliser ce dispositif pour sceller différents formats de récipients ou barquettes. Dans la suite de la description, l'invention sera décrite plus en détail dans son application 20 aux barquettes alimentaires, sans toutefois revêtir un quelconque effet limitatif. ETAT ANTERIEUR DE LA TECHNIQUE De façon générale, les dispositifs permettant de sceller l'ouverture de remplissage d'une 25 barquette alimentaire présentent une matrice constituée par un cadre apte à accueillir une ou plusieurs barquettes. Cependant, ce type de dispositif est adapté pour sceller des barquettes présentant chacune les mêmes dimensions. Il n'est donc pas possible, avec ce type de dispositif de scellement, de sceller des barquettes de dimensions différentes. 30 En d'autres termes, il est nécessaire de disposer d'autant de dispositif de scellement que de formats de barquettes. On conçoit sans difficulté que recourir à plusieurs de ces dispositifs, non seulement obère les coûts d'exploitation d'un commerce, mais en outre, génère un encombrement non négligeable. 35 Ainsi, le but de l'invention est de rendre la structure de la matrice modulaire pour permettre de réaliser le scellement de barquettes de dimensions différentes. 15 2903078 EXPOSE DE L'INVENTION L'invention concerne donc un dispositif pour sceller ou operculer un récipient de forme sensiblement rectangulaire avec un film thermo-soudable comprenant une matrice destinée à recevoir et à maintenir en position le récipient à sceller ou operculer, et un organe de scellement chauffant articulé sur la matrice. Il se caractérise en ce que la matrice est constituée d'un cadre défini par deux bras longitudinaux reliés entre eux par une traverse fixe et un coulisseau mobile en translation entre les deux bras longitudinaux. Il se caractérise également en ce que le coulisseau mobile comporte en outre une barrette de séparation longitudinale, de longueur inférieure à celle des deux bras longitudinaux, de manière à définir deux compartiments avec la traverse fixe, partie des bras longitudinaux et ledit coulisseau, la barrette étant montée mobile par rapport au plan défini par le cadre de la matrice entre une position opérationnelle, dans laquelle l'extrémité libre de la barrette coopère avec la traverse fixe, et une position escamotée dans laquelle la barrette est simplement suspendue au coulisseau.  THERMAL WELDABLE. TECHNICAL FIELD The invention relates to the field of sealed packaging of articles, particularly foodstuffs, inside containers of substantially rectangular shape. Such containers are generally in the form of trays most often made of plastic, and whose filling opening is then closed by means of a plastic or composite film. Such a device comprises in particular a matrix within which is positioned the container filled with its contents, and a heating sealing member, movable relative to the matrix, and for thermo-welding the film with an upper flap of the container. The invention more particularly relates to a particular arrangement of the matrix for using this device for sealing different sizes of containers or trays. In the following description, the invention will be described in more detail in its application to food trays, without however having any limiting effect. PRIOR ART In general, devices for sealing the filling opening of a food tray have a matrix consisting of a frame adapted to accommodate one or more trays. However, this type of device is suitable for sealing trays each having the same dimensions. It is therefore not possible, with this type of sealing device, to seal trays of different dimensions. In other words, it is necessary to have as many sealing devices as trays formats. It is easy to see that using several of these devices not only obeys the operating costs of a business, but also generates a significant amount of space. Thus, the object of the invention is to make the structure of the modular matrix to allow the sealing of trays of different dimensions. SUMMARY OF THE INVENTION The invention thus relates to a device for sealing or sealing a container of substantially rectangular shape with a heat-sealable film comprising a matrix intended to receive and hold in position the container to be sealed or sealed, and a heated sealing member articulated on the matrix. It is characterized in that the matrix consists of a frame defined by two longitudinal arms interconnected by a fixed cross member and a slider movable in translation between the two longitudinal arms. It is also characterized in that the movable slider further comprises a longitudinal separation bar, of shorter length than that of the two longitudinal arms, so as to define two compartments with the fixed crossbar, part of the longitudinal arms and said slider, the bar being mounted movable relative to the plane defined by the frame of the matrix between an operational position, in which the free end of the bar cooperates with the fixed crossbar, and a retracted position in which the bar is simply suspended from the slide.

Autrement dit, le déplacement du coulisseau mobile par rapport aux deux bras longitudinaux permet de modifier les dimensions d'un compartiment unique délimité d'une part, par les deux bras longitudinaux, et d'autre part, par la traverse fixe et le coulisseau mobile.  In other words, the displacement of the movable slider relative to the two longitudinal arms makes it possible to modify the dimensions of a single compartment delimited on the one hand by the two longitudinal arms, and on the other hand by the fixed crossbar and the movable slider. .

Un tel déplacement peut notamment être réalisé au moyen de glissières ménagées à cet effet à l'intérieur des bras longitudinaux, et dans lesquelles coopèrent les extrémités du coulisseau mobile. Par ailleurs, il est possible d'équiper les glissières avec des moyens de butée pour mémoriser un pré-positionnement du coulisseau par rapport aux bras longitudinaux en fonction des dimensions de barquettes utilisées par le dispositif.  Such displacement can in particular be achieved by means of slides provided for this purpose inside the longitudinal arms, and in which the ends of the movable slide cooperate. Furthermore, it is possible to equip the slides with stop means for storing a pre-positioning of the slide relative to the longitudinal arms according to the dimensions of trays used by the device.

Par ailleurs, la barrette de séparation longitudinale permet de diviser en deux compartiments le compartiment unique précédemment décrit, et défini entre les deux bras longitudinaux, la traverse fixe et le coulisseau mobile. Ainsi, chacun de ces deux compartiments est défini entre une portion d'un bras longitudinal, une portion de la traverse fixe, la barrette de séparation et une portion du coulisseau mobile. -2 2903078 -3 Lorsque la barrette de séparation est positionnée au niveau d'un plan médian transversal au coulisseau mobile, les deux compartiments présentent alors les mêmes dimensions. L'utilisation de la barrette de séparation permet alors de positionner sur la matrice deux barquettes de dimensions deux fois moins grandes par rapport au compartiment unique 5 formé par le cadre lorsque la barrette est escamotée. Avantageusement, la barrette de séparation peut être agencée en liaison pivot par rapport au coulisseau.  Furthermore, the longitudinal separation bar divides into two compartments the single compartment described above, and defined between the two longitudinal arms, the fixed cross member and the movable slider. Thus, each of these two compartments is defined between a portion of a longitudinal arm, a portion of the fixed crossbar, the separation bar and a portion of the movable slider. When the separation strip is positioned at a median plane transverse to the movable slide, the two compartments then have the same dimensions. The use of the separation bar then makes it possible to position on the matrix two trays of dimensions half of the size of the single compartment 5 formed by the frame when the bar is retracted. Advantageously, the separation strip may be arranged in pivot connection relative to the slide.

10 Ainsi, la barrette peut comporter un logement dans lequel pénètre un axe de rotation solidaire du coulisseau. Cet agencement particulier permet de faciliter l'escamotage ou la mise en place de la barrette dans un temps le plus bref possible. Il permet également d'éviter certains inconvénients que présenterait une barrette totalement démontable hors du cadre, et notamment de ne pas l'endommager, de la salir, voire même de l'égarer.Thus, the bar may comprise a housing into which an axis of rotation integral with the slider penetrates. This particular arrangement makes it easier to retract or set up the bar in the shortest possible time. It also avoids certain disadvantages that would present a bar completely removable outside the frame, including not to damage it, dirty it, or even misplace.

15 En pratique, l'extrémité libre de la barrette peut comporter une excroissance coopérant avec un logement de forme complémentaire ménagé dans la traverse fixe. En d'autres termes, l'excroissance de la barrette de séparation pénètre à l'intérieur du 20 logement selon un mouvement de translation guidé par le coulisseau selon la direction définie par les bras longitudinaux. Le logement permet ainsi de fournir un appui à l'excroissance et transmettre au cadre de la matrice l'effort généré par le poids des barquettes remplies de leur contenu.In practice, the free end of the bar may comprise an outgrowth cooperating with a complementary shaped housing formed in the fixed crossbar. In other words, the protrusion of the separation bar penetrates inside the housing in a translational movement guided by the slide in the direction defined by the longitudinal arms. The housing thus makes it possible to provide support for the protrusion and transmit to the framework of the matrix the effort generated by the weight of the trays filled with their contents.

25 Selon un mode de réalisation particulier, la matrice peut comporter des moyens de verrouillage aptes à maintenir en position le coulisseau par rapport au cadre. Dans ce cas, on supprime le degré de mobilité en translation du coulisseau qui est alors agencé en liaison encastrement avec, d'une part, les deux bras longitudinaux, et d'autre 30 part, la traverse fixe. Cette liaison encastrement est donc réversible lorsqu'il est nécessaire de modifier le positionnement du coulisseau pour s'adapter à une barquette de dimensions différentes. Avantageusement, les moyens de verrouillage peuvent être agencés au niveau de 35 l'extrémité libre de la barrette de séparation. 2903078 -4- De cette manière, le blocage de la translation du coulisseau est réalisé au niveau de la liaison entre, d'une part, l'extrémité libre de la barrette de séparation, et d'autre part, la traverse fixe.According to a particular embodiment, the matrix may comprise locking means capable of holding the slide in position relative to the frame. In this case, the degree of mobility in translation of the slider is eliminated, which is then arranged in a recessed connection with, on the one hand, the two longitudinal arms, and on the other hand, the fixed crossbar. This embedding connection is reversible when it is necessary to change the positioning of the slider to fit a tray of different dimensions. Advantageously, the locking means may be arranged at the free end of the separation bar. In this way, blocking of the translation of the slide is made at the connection between, on the one hand, the free end of the separation bar, and on the other hand, the fixed crossbar.

5 En pratique, les extrémités de la barrette de séparation peuvent comporter une forme évasée pour épouser les récipients de forme rectangulaire présentant des coins arrondis. En effet, les récipients ou barquettes sont généralement réalisés dans un moule, soit par un procédé d'injection lorsque les barquettes sont réalisées en un matériau polymère, soit 10 par un procédé d'estampage lorsque les barquettes sont formées par la déformation d'une feuille de métal, notamment d'aluminium. Ces deux types de réalisation imposent donc de réaliser des congés de raccordement, ou coins arrondis, pour faciliter l'extraction des barquettes situées à l'intérieur du moule de fabrication.In practice, the ends of the separation bar may have a flared shape to fit rectangular shaped containers with rounded corners. Indeed, the containers or trays are generally made in a mold, either by an injection process when the trays are made of a polymeric material, or by a stamping process when the trays are formed by the deformation of a mold. sheet of metal, especially aluminum. These two types of realization therefore require making connection fillet, or rounded corners, to facilitate the extraction of the trays located inside the manufacturing mold.

15 La forme évasée des extrémités de la barrette de séparation permet ainsi de faire reposer sur la totalité de sa face inférieure, le rabat sensiblement plan sur lequel le film est scellé. Selon un mode de réalisation particulier, la barrette de séparation peut comporter une nervure longitudinale destinée à limiter sa flexion. En effet, l'utilisation d'une nervure 20 permet de rigidifier la structure de la barrette en économisant de la matière, et ainsi on optimise le ratio rigidité/coût matière de fabrication de la barrette de séparation. DESCRIPTION SOMMAIRE DES FIGURES 25 La manière de réaliser l'invention ainsi que les avantages qui en découlent, ressortiront bien de la description du mode de réalisation qui suit, donné à titre indicatif et non limitatif, à l'appui des figures annexées dans lesquelles : Les figures 1 et 2 sont des vues schématiques en perspective d'une matrice comportant un coulisseau mobile en translation par rapport aux bras longitudinaux, conformément à 30 l'invention. La figure 3 est une vue en perspective schématique de la mise en place d'une barrette de séparation, conformément à l'invention. DESCRIPTION DETAILLEE DE L'INVENTION Comme déjà évoqué, l'invention concerne un dispositif pour sceller ou operculer une barquette, notamment destinée à recevoir des produits alimentaires. 35 2903078 -5- Tel que représenté à la figure 1, le dispositif présente une matrice (1) constituée d'un cadre défini par deux bras longitudinaux (2, 3), reliés entre eux par une traverse fixe (4) et un coulisseau (5), mobile en translation entre les deux bras longitudinaux (2, 3). Ce cadre permet alors de délimiter un compartiment (13) à l'intérieur duquel on positionne une 5 barquette de grandes dimensions. Tel que représenté à la figure 2, le coulisseau (5) peut être déplacé et définir un nouveau compartiment (14) apte à recevoir une barquette de moyennes dimensions. Dans l'exemple de réalisation représenté, cette barquette de moyennes dimensions présente une 10 surface d'ouverture, et donc de scellement sensiblement de deux fois inférieure à la surface correspondante de celle de grandes dimensions. Le positionnement du coulisseau (5) par rapport aux bras longitudinaux (2, 3) peut s'opérer au moyen de butées non représentées agencées au niveau de glissières ménagées dans les deux bras longitudinaux (2, 3). Par ailleurs, il est possible de verrouiller le positionnement du coulisseau mobile 15 (5) et ainsi s'assurer de la bonne stabilité de la barquette sur la matrice (1). Tel que représenté au sein des figures 1 et 3, l'extrémité (19) de la barrette de séparation (6) peut pivoter autour d'un axe de rotation solidaire du coulisseau (5). On positionne alors l'extrémité libre (9) de la barrette munie d'une excroissance (10) en regard d'un 20 logement (11) de forme complémentaire. La translation du coulisseau mobile (5) permet d'insérer l'excroissance (10) à l'intérieur du logement (11) de manière à positionner la barrette de séparation (6) dans le plan défini par le cadre de la matrice (1). Tel que représenté, les extrémités (9, 19) de la barrette de séparation (6) comportent une 25 forme évasée pour épouser la forme des barquettes munies de coins arrondis. Ainsi, le compartiment (14) de la figure 2 peut être divisé en deux compartiments (7, 8) de dimensions égales ou différentes en fonction du positionnement de la barrette de séparation (6) sur le coulisseau mobile (5). Les deux compartiments (7, 8) ainsi formés sont alors aptes à recevoir deux barquettes de petites dimensions et permettre leur 30 scellement. Par ailleurs, une nervure (12) peut être agencée longitudinalement le long de la barrette de séparation (6) de manière à rigidifier sa structure. 2903078 -6- Il ressort de ce qui précède qu'un dispositif de scellement conforme à l'invention présente de multiples avantages, notamment : ^ il permet de sceller des récipients de dimensions différentes, et notamment au moins trois formats ; 5 ^ il permet d'effectuer le changement de format de récipients en un temps minimal ; ^ il permet de réduire les coûts d'investissement de l'utilisateur car pour operculer trois formats différents plusieurs matrices sont nécessaire à ce jour.The flared shape of the ends of the separation bar thus makes it possible to rest on the whole of its lower face, the substantially plane flap on which the film is sealed. According to a particular embodiment, the separation bar may comprise a longitudinal rib intended to limit its flexion. Indeed, the use of a rib 20 stiffens the structure of the bar saves material, and thus optimizes the stiffness ratio / material cost of manufacture of the separation bar. SUMMARY DESCRIPTION OF THE FIGURES The manner of carrying out the invention as well as the advantages derived therefrom will emerge clearly from the description of the embodiment which follows, given by way of indication and not by way of limitation, in support of the appended figures in which: Figures 1 and 2 are schematic perspective views of a die having a slider movable in translation relative to the longitudinal arms, according to the invention. Figure 3 is a schematic perspective view of the establishment of a separation bar, according to the invention. DETAILED DESCRIPTION OF THE INVENTION As already mentioned, the invention relates to a device for sealing or sealing a tray, in particular for receiving food products. As shown in FIG. 1, the device has a matrix (1) consisting of a frame defined by two longitudinal arms (2, 3), interconnected by a fixed crossbar (4) and a slider. (5), movable in translation between the two longitudinal arms (2, 3). This frame then makes it possible to define a compartment (13) inside which a large tray is positioned. As shown in Figure 2, the slider (5) can be moved and define a new compartment (14) adapted to receive a tray of medium size. In the exemplary embodiment shown, this medium-sized container has an opening surface, and therefore sealing substantially two times smaller than the corresponding surface of that of large dimensions. The positioning of the slide (5) relative to the longitudinal arms (2, 3) can be effected by means of stops not shown arranged at the level of slides formed in the two longitudinal arms (2, 3). Furthermore, it is possible to lock the positioning of the movable slider 15 (5) and thus ensure the good stability of the tray on the die (1). As shown in Figures 1 and 3, the end (19) of the separation bar (6) is pivotable about an axis of rotation integral with the slide (5). The free end (9) of the bar provided with a protrusion (10) is then positioned opposite a housing (11) of complementary shape. The translation of the movable slider (5) allows the protrusion (10) to be inserted inside the housing (11) so as to position the separation bar (6) in the plane defined by the frame of the matrix (1). ). As shown, the ends (9, 19) of the separation bar (6) have a flared shape to match the shape of the trays with rounded corners. Thus, the compartment (14) of Figure 2 can be divided into two compartments (7, 8) of equal or different dimensions depending on the positioning of the separation bar (6) on the movable slider (5). The two compartments (7, 8) thus formed are then able to receive two trays of small dimensions and allow their sealing. Furthermore, a rib (12) can be arranged longitudinally along the separation bar (6) so as to stiffen its structure. It follows from the foregoing that a sealing device according to the invention has many advantages, in particular: it makes it possible to seal containers of different sizes, and in particular at least three sizes; It enables the format of containers to be changed in a minimum time; It reduces the investment costs of the user because to seal three different formats several matrices are needed to date.

Claims (4)

REVENDICATIONS 1. Dispositif pour sceller ou operculer un récipient de forme sensiblement rectangulaire avec un film thermo-soudable, comprenant une matrice (1) destinée à recevoir et à maintenir en position ledit récipient, et un organe de scellement chauffant articulé sur ladite matrice (1), caractérisé : ^ en ce que ladite matrice (1) est constituée d'un cadre défini par deux bras longitudinaux (2, 3) reliés entre eux par une traverse fixe (4) et un coulisseau (5) mobile en translation entre lesdits deux bras longitudinaux (2, 3), ^ et en ce que le coulisseau mobile (5) comporte en outre une barrette de séparation longitudinale (6), de longueur inférieure à celle des deux bras longitudinaux (2, 3), de manière à définir avec la traverse fixe (4), partie des bras longitudinaux (2, 3) et le coulisseau (5) deux compartiments (7, 8), ladite barrette (6) étant mobile par rapport au plan défini par le cadre de la matrice (1) entre une position opérationnelle, dans laquelle l'extrémité libre (9) de la barrette (6) coopère avec la traverse fixe (4), et une position escamotée dans laquelle la barrette (6) est simplement suspendue au coulisseau (5).  A device for sealing or sealing a substantially rectangular container with a heat-sealable film, comprising a matrix (1) for receiving and holding said container in position, and a heated sealing member hinged to said matrix (1) , characterized in that said matrix (1) consists of a frame defined by two longitudinal arms (2, 3) interconnected by a fixed crossbar (4) and a slider (5) movable in translation between said two longitudinal arms (2, 3), and in that the movable slide (5) further comprises a longitudinal separation bar (6), of shorter length than the two longitudinal arms (2, 3), so as to define with the fixed crossbar (4), part of the longitudinal arms (2, 3) and the slide (5) two compartments (7, 8), said bar (6) being movable relative to the plane defined by the frame of the matrix ( 1) between an operational position, in which the extremity é e free (9) of the bar (6) cooperates with the fixed crossbar (4), and a retracted position in which the bar (6) is simply suspended from the slide (5). 2. Dispositif pour sceller ou operculer un récipient selon la revendication 1, caractérisé en ce que la barrette de séparation (6) est agencée en liaison pivot par rapport au coulisseau mobile (5).  2. Device for sealing or sealing a container according to claim 1, characterized in that the separation bar (6) is arranged in pivot connection relative to the movable slider (5). 3. Dispositif pour sceller ou operculer un récipient selon l'une des revendications 1 et 2, caractérisé en ce que l'extrémité libre (9) de la barrette de séparation (6) comporte une excroissance (10) coopérant avec un logement (11) de forme complémentaire ménagé dans la traverse fixe (4).  3. Device for sealing or sealing a container according to one of claims 1 and 2, characterized in that the free end (9) of the separation bar (6) comprises a protrusion (10) cooperating with a housing (11). ) of complementary shape formed in the fixed crossbar (4). 4. Dispositif pour sceller ou operculer un récipient selon l'une des revendications 1 à 3, caractérisé en ce que la matrice comporte des moyens de verrouillage aptes à maintenir en position le coulisseau (5) par rapport au cadre.  4. Device for sealing or sealing a container according to one of claims 1 to 3, characterized in that the matrix comprises locking means adapted to maintain in position the slide (5) relative to the frame.
FR0652722A 2006-06-30 2006-06-30 DEVICE FOR SEALING A RECTANGULAR RECEPTACLE WITH A THERMO-WELDABLE FILM Expired - Fee Related FR2903078B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011088652A (en) * 2009-10-23 2011-05-06 Teraoka Seiko Co Ltd Heat seal packaging device
FR2963322A1 (en) * 2010-08-02 2012-02-03 Guelt Automatic leak-proof sealing device for plastic food product tray, has guiding units cooperating with complementary guiding units of parts to guide displacement of plate in translation, with edges during positioning and withdrawal of plate
US20130118117A1 (en) * 2011-11-11 2013-05-16 Jason J. Grobbel Sealing die assembly for form fill packaging machine
IT201700060407A1 (en) * 2017-06-01 2018-12-01 Machsolutions Sa EQUIPMENT FOR PACKAGING CONTAINERS

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Publication number Priority date Publication date Assignee Title
FR1351301A (en) * 1963-03-21 1964-01-31 Kalle Ag Method and device for closing containers comprising a rim made at least superficially of thermoplastic material
FR2799728A1 (en) * 1999-10-15 2001-04-20 Ora Dynaseal Container support for sealing machine used in small-scale food production has recess into which container is fitted with arm completing recess which can swing to one side so that the container can be slid into recess
WO2006023626A2 (en) * 2004-08-19 2006-03-02 Oliver Products Company Food container sealing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1351301A (en) * 1963-03-21 1964-01-31 Kalle Ag Method and device for closing containers comprising a rim made at least superficially of thermoplastic material
FR2799728A1 (en) * 1999-10-15 2001-04-20 Ora Dynaseal Container support for sealing machine used in small-scale food production has recess into which container is fitted with arm completing recess which can swing to one side so that the container can be slid into recess
WO2006023626A2 (en) * 2004-08-19 2006-03-02 Oliver Products Company Food container sealing apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011088652A (en) * 2009-10-23 2011-05-06 Teraoka Seiko Co Ltd Heat seal packaging device
FR2963322A1 (en) * 2010-08-02 2012-02-03 Guelt Automatic leak-proof sealing device for plastic food product tray, has guiding units cooperating with complementary guiding units of parts to guide displacement of plate in translation, with edges during positioning and withdrawal of plate
US20130118117A1 (en) * 2011-11-11 2013-05-16 Jason J. Grobbel Sealing die assembly for form fill packaging machine
US9174751B2 (en) * 2011-11-11 2015-11-03 Jason J. Grobbel Sealing die assembly for form fill packaging machine
IT201700060407A1 (en) * 2017-06-01 2018-12-01 Machsolutions Sa EQUIPMENT FOR PACKAGING CONTAINERS
WO2018220574A1 (en) * 2017-06-01 2018-12-06 Machsolutions Sa Apparatus for manufacturing containers
CN110691736A (en) * 2017-06-01 2020-01-14 马克解决方案股份公司 Device for producing containers

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