FR2726807A1 - Matrix for protecting food trays with stretch film - Google Patents
Matrix for protecting food trays with stretch film Download PDFInfo
- Publication number
- FR2726807A1 FR2726807A1 FR9413794A FR9413794A FR2726807A1 FR 2726807 A1 FR2726807 A1 FR 2726807A1 FR 9413794 A FR9413794 A FR 9413794A FR 9413794 A FR9413794 A FR 9413794A FR 2726807 A1 FR2726807 A1 FR 2726807A1
- Authority
- FR
- France
- Prior art keywords
- matrix
- transverse side
- cross member
- fixed transverse
- trays
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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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
- B65B7/162—Closing 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
- B65B7/164—Securing by heat-sealing
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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
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
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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
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/242—Particular 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
- B29C66/2424—Particular 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
- B29C66/24243—Particular 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
- B29C66/24244—Particular 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
-
- 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
- B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
- B29C66/53461—Joining 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
-
- 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
- B29C66/816—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 mounting of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8167—Quick change joining tools or surfaces
-
- 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
- B29C66/8324—Joining or pressing tools pivoting around one axis
-
- 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
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
- B29C66/8412—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different length, width or height
-
- 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
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
- B29C66/8412—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different length, width or height
- B29C66/84121—Machines 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closing Of Containers (AREA)
Abstract
Description
La présente invention, se rapportant du domaine des matériels d'emballage, concerne une matrice pour machine manuelle ou semi-automatique destinée à operculer des barquettes, notamment des barquettes alimentaires rectangulaires. The present invention, relating to the field of packaging materials, relates to a matrix for manual or semi-automatic machine intended to seal trays, in particular rectangular food trays.
Les barquettes alimentaires, en matière synthétique, sont operculées par soudage, sur leur bord, d'un film en matière thermosoudable. A cet effet, on utilise entre autres des machines manuelles ou semiautomatiques dites "operculeuses", comportant un socle recevant une matrice pourvue d'au moins une empreinte, prévue pour recevoir et retenir une barquette à operculer. Food trays, made of synthetic material, are sealed by welding, on their edge, a film of heat-sealable material. For this purpose, inter alia manual or semi-automatic machines known as "traysealers", comprising a base receiving a matrix provided with at least one imprint, designed to receive and retain a tray to be sealed.
Sur le socle est articulé un couvercle équipé d'une plaque chauffante électrique. En rabattant le couvercle contre le socle, on applique la plaque chauffante sur le film amené au-dessus de la barquette, ce qui provoque le soudage du film sur le bord de la barquette. La machine peut encore comporter des accessoires, tels qu'un support de bobine de film et un dispositif de coupe du film.On the base is hinged a cover equipped with an electric heating plate. By folding the cover against the base, the heating plate is applied to the film supplied above the tray, which causes the film to be welded to the edge of the tray. The machine may also include accessories, such as a film reel support and a film cutting device.
Dans la pratique, il existe plusieurs formats de barquettes alimentaires, et en particulier deux formats normalisés qui sont les plus courants. L'utilisateur de la machine est donc amené à placer, sur le socle de celle-ci, alternativement l'une ou l'autre de deux matrices comportant, l'une, une empreinte correspondant aux barquettes de plus petit format, et l'autre, une empreinte correspondant aux barquettes de plus grand format. In practice, there are several formats of food trays, and in particular two standardized formats which are the most common. The user of the machine is therefore brought to place, on the base thereof, alternately one or the other of two dies comprising, one, an imprint corresponding to the trays of smaller format, and the other, an imprint corresponding to the larger format trays.
Des manipulations sont donc inévitables pour passer d'un format de barquette à un autre, puisqu'il faut alors retirer du socle l'une des matrices, et mettre en place l'autre matrice. En outre, il convient de prévoir un emplacement pour le rangement de celle des deux matrices qui n'est pas utilisée à un moment donné. Manipulations are therefore inevitable to switch from one tray format to another, since it is then necessary to remove from the base one of the dies, and set up the other matrix. In addition, it is advisable to provide a place for the storage of that of the two matrices which is not used at a given time.
Le but de la présente invention est de supprimer toutes les contraintes dues à l'utilisation alternée de deux matrices, et en particulier de limiter les manipulations et d'éviter le stockage d'une matrice inutilisée, tout en permettant à une même machine d'operculer des barquettes de deux formats, en mettant à profit le fait que la longueur des barquettes de plus petit format est habituellement égale à la largeur des barquettes de plus grand format. The object of the present invention is to remove all the constraints due to the alternating use of two dies, and in particular to limit handling and to avoid the storage of an unused die, while allowing the same machine to seal trays of two formats, taking advantage of the fact that the length of the smaller trays is usually equal to the width of the larger trays.
A cet effet, l'invention a pour objet une matrice pour machine à operculer des barquettes, du genre précisé ci-dessus, matrice qui comporte deux côtés longitudinaux reliés entre eux rigidement, à au moins une extrémité, par un côté transversal fixe, tandis qu'une traverse parallèle au côté transversal fixe est montée mobile en translation, entre les deux côtés longitudinaux, de manière à pouvoir être amenée dans une position rapprochée du côté transversal fixe, pour délimiter une empreinte de plus petit format correspondant à des barquettes de plus petit format, ou dans une position éloignée dudit côté transversal fixe, pour délimiter une empreinte de plus grand format correspondant à des barquettes de plus grand format. To this end, the subject of the invention is a matrix for a machine for sealing trays, of the kind specified above, a matrix which has two longitudinal sides rigidly connected to each other, at at least one end, by a fixed transverse side, while that a crosspiece parallel to the fixed transverse side is mounted movable in translation, between the two longitudinal sides, so that it can be brought into a position close to the fixed transverse side, to delimit a smaller footprint corresponding to more trays small format, or in a position distant from said fixed transverse side, to delimit a larger format imprint corresponding to larger format trays.
Ainsi, la matrice objet de la présente invention peut rester en place sur le socle de la machine à operculer, cette matrice étant réglable instantanément pour s'adapter aux deux principaux formats de barquettes
- lorsque la traverse mobile occupe sa première position, cette traverse définit, avec le côté transversal fixe de la matrice, les grands côtés d'une empreinte rectangulaire de plus petit format
- lorsque la même traverse occupe sa deuxième position, cette traverse définit, avec le côté transversal fixe de la matrice, les petits côtés d'une empreinte rectangulaire de plus grand format, dont la largeur est égale à la longueur de l'empreinte de plus petit format.Thus, the matrix object of the present invention can remain in place on the base of the sealing machine, this matrix being instantly adjustable to adapt to the two main formats of trays
- when the mobile cross-member occupies its first position, this cross-member defines, with the fixed transverse side of the matrix, the long sides of a smaller rectangular footprint
- when the same cross member occupies its second position, this cross member defines, with the fixed transverse side of the matrix, the short sides of a larger rectangular imprint, the width of which is equal to the length of the further imprint small format.
Les deux côtés longitudinaux de la matrice sont avantageusement pourvus de moyens de guidage en translation, tels que des simples glissières, pour les deux extrémités respectives de la traverse mobile. De préférence, ces moyens de guidage sont munis de butées respectives qui limitent le déplacement en translation de la traverse mobile, au moins pour arrêter cette traverse dans sa position rapprochée du côté transversal fixe, et aussi éventuellement pour l'arrêter dans sa position éloignée dudit côté transversal fixe. The two longitudinal sides of the matrix are advantageously provided with means for guiding in translation, such as simple slides, for the two respective ends of the movable cross member. Preferably, these guide means are provided with respective stops which limit the translational movement of the movable cross member, at least to stop this cross member in its position close to the fixed transverse side, and also possibly to stop it in its position remote from said fixed transverse side.
De préférence, les deux extrémités de la traverse mobile présentent, sur leur bord tourné vers le côté transversal fixe, un profil arrondi correspondant aux angles arrondis présents entre les deux côtés longitudinaux et le côté transversal fixe de la matrice. Preferably, the two ends of the movable crossmember have, on their edge facing the fixed transverse side, a rounded profile corresponding to the rounded angles present between the two longitudinal sides and the fixed transverse side of the matrix.
De manière habituelle, les matrices pour machines à operculer les barquettes comportent, sur le contour de la ou de chaque empreinte, un joint de soudure continu. Usually, the dies for machines for sealing trays have, on the contour of the or each imprint, a continuous weld joint.
Pour reconstituer un tel joint dans le cas de l'invention, la traverse mobile comporte de préférence sur toute sa longueur un tronçon de joint de soudure, complétant un joint de soudure placé le long des deux côtés longitudinaux et du côté transversal fixe de la matrice.To reconstitute such a joint in the case of the invention, the movable cross member preferably comprises over its entire length a section of weld joint, completing a weld joint placed along the two longitudinal sides and on the fixed transverse side of the matrix .
Le tronçon de joint de soudure porté par la traverse mobile suit avantageusement le profil arrondi des extrémités de cette traverse.The weld joint section carried by the movable cross member advantageously follows the rounded profile of the ends of this cross member.
De toute façon, l'invention sera mieux comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple, une forme d'exécution de cette matrice pour machine à operculer des barquettes
Figure 1 est une vue d'ensemble, en perspective, d'une machine équipée de la matrice objet de la présente invention, représentée dans une position permettant d'operculer des "petites" barquettes
Figure 2 est une vue partielle en perspective de la même machine, la matrice étant représentée dans une autre position, permettant d'operculer des "grandes" barquettes
Figure 3 est une vue en perspective de la matrice seule, la traverse étant représentée sortie des glissières ;
Figure 4 est une vue en coupe de cette matrice, suivant IV-IV de figure 3.In any case, the invention will be better understood with the aid of the description which follows, with reference to the appended diagrammatic drawing representing, by way of example, an embodiment of this matrix for machine for sealing trays
Figure 1 is an overview, in perspective, of a machine equipped with the matrix object of the present invention, shown in a position to seal "small" trays
Figure 2 is a partial perspective view of the same machine, the matrix being shown in another position, allowing to seal "large" trays
Figure 3 is a perspective view of the matrix alone, the cross member being shown out of the slides;
Figure 4 is a sectional view of this matrix, along IV-IV of Figure 3.
Comme le montre la figure 1, une machine à operculer manuelle ici concernée comprend un socle 1, sur un côté duquel est articulé un couvercle 2 muni d'une poignée 3. Le socle 1 présente, dans sa partie supérieure, une ouverture rectangulaire dans laquelle prend place la matrice 4, faisant plus particulièrement l'objet de la présente invention, qui reçoit elle-même une barquette alimentaire 5 à operculer, c'est-à-dire à obturer par soudage d'un film 6 en matière thermosoudable sur son bord. Le couvercle 2 est équipé, sur sa face intérieure, d'une plaque chauffante électrique 7. Lorsque le couvercle 2 est rabattu contre le socle 1, la plaque chauffante 7 s'applique sur le film 6 avancé au-dessus de la barquette 5, et le film 6 est ainsi soudé sur le bord de cette barquette 5. As shown in Figure 1, a manual sealing machine here concerned comprises a base 1, on one side of which is hinged a cover 2 provided with a handle 3. The base 1 has, in its upper part, a rectangular opening in which takes place the matrix 4, which is more particularly the object of the present invention, which itself receives a food tray 5 to be sealed, that is to say to be closed by welding a film 6 of heat-sealable material on its edge. The cover 2 is equipped, on its inner face, with an electric heating plate 7. When the cover 2 is folded against the base 1, the heating plate 7 is applied to the film 6 advanced above the tray 5, and the film 6 is thus welded to the edge of this tray 5.
Dans l'exemple ici représenté, la machine comporte encore un support 8 pour une bobine de film 9, fixé contre un côté du socle 1, et un dispositif de coupe 10 du film 6, prévu le long d'un côté du couvercle 2. In the example shown here, the machine also includes a support 8 for a film reel 9, fixed against one side of the base 1, and a film cutting device 10, provided along one side of the cover 2.
La matrice 4, représentée plus en détail aux figures 3 et 4, possède une configuration de base en "U", avec deux côtés longitudinaux 11 et 12, reliés rigidement entre eux à une extrémité par un côté transversal fixe 13, les angles intérieurs 14 et 15 définis par les deux côtés longitudinaux 11 et 12 et par le côté transversal 13 étant arrondis. The matrix 4, shown in more detail in FIGS. 3 and 4, has a basic "U" configuration, with two longitudinal sides 11 and 12, rigidly connected to each other at one end by a fixed transverse side 13, the interior angles 14 and 15 defined by the two longitudinal sides 11 and 12 and by the transverse side 13 being rounded.
Les deux côtés longitudinaux 11 et 12 sont pourvus, sur leurs faces respectives situées en regard l'une de l'autre, de glissières longitudinales respectives 16. Ces glissières 16 servent au guidage en translation, parallèlement aux côtés longitudinaux 11 et 12, d'une traverse mobile 17 qui s'étend parallèlement au côté transversal fixe 13, les deux extrémités 18 et 19 de la traverse 17 étant engagées, de façon coulissante, respectivement dans les deux glissières 16. The two longitudinal sides 11 and 12 are provided, on their respective faces located opposite one another, with respective longitudinal slides 16. These slides 16 serve for guiding in translation, parallel to the longitudinal sides 11 and 12, of a movable cross member 17 which extends parallel to the fixed transverse side 13, the two ends 18 and 19 of the cross member 17 being slidably engaged, respectively, in the two slides 16.
Les deux extrémités 18 et 19 de la traverse mobile 17 présentent, sur leur bord tourné vers le côté transversal fixe 13, un profil arrondi 20 correspondant aux angles arrondis 14 et 15 précédemment mentionnés. The two ends 18 and 19 of the movable cross member 17 have, on their edge facing the fixed transverse side 13, a rounded profile 20 corresponding to the rounded angles 14 and 15 previously mentioned.
Un joint de soudure fixe 21, continu, s'étend sur la face supérieure de la matrice 4, le long des deux côtés longitudinaux 11 et 12 et du côté transversal 13, en suivant leurs bords intérieurs, y compris les angles arrondis 14 et 15. La traverse mobile 17 comporte, sur sa face supérieure, et sur toute sa longueur, un tronçon de joint de soudure 22 analogue au joint 21 précité, le tronçon de joint 22 étant arrondi à ses deux extrémités de manière à suivre leur profil arrondi 20. A fixed, continuous weld joint 21 extends on the upper face of the matrix 4, along the two longitudinal sides 11 and 12 and on the transverse side 13, following their internal edges, including the rounded corners 14 and 15 The movable cross member 17 comprises, on its upper face, and over its entire length, a section of weld joint 22 similar to the aforementioned joint 21, the joint section 22 being rounded at its two ends so as to follow their rounded profile 20 .
Ainsi, la matrice 4 présente une empreinte rectangulaire 23, avec quatre angles arrondis et entièrement entourée d'un joint de soudure 21,22, cette empreinte 23 étant délimitée par les deux côtés longitudinaux 11 et 12, par le côté transversal 13 et par la traverse 17. Compte tenu de la mobilité de la traverse 17, l'empreinte 23 a ici pour particularité d'être de format variable. Thus, the matrix 4 has a rectangular imprint 23, with four rounded angles and entirely surrounded by a weld joint 21, 22, this imprint 23 being delimited by the two longitudinal sides 11 and 12, by the transverse side 13 and by the cross member 17. Given the mobility of the cross member 17, the imprint 23 here has the particularity of being of variable format.
En particulier, lorsque la traverse mobile 17 est amenée dans une position extrême rapprochée du côté transversal fixe 13, elle délimite avec les différents côtés 11,12 et 13 une empreinte 23 de plus petit format, qui correspond à un premier format normalisé de barquette 5 ("petite" barquette) - voir la figure 1 et le tracé en trait continu de la figure 4). Des butées 24, prévues sur les glissières 16, limitent le déplacement de la traverse mobile 17 en direction du côté transversal fixe 13, de manière à définir avec précision cette première position d'utilisation. In particular, when the movable cross member 17 is brought into an extreme position close to the fixed transverse side 13, it defines with the different sides 11, 12 and 13 a footprint 23 of smaller size, which corresponds to a first standardized tray format 5 ("small" tray) - see Figure 1 and the solid line in Figure 4). Stops 24, provided on the slides 16, limit the movement of the movable cross member 17 towards the fixed transverse side 13, so as to precisely define this first position of use.
Au contraire, lorsque la traverse mobile 17 est amenée dans son autre position extrême, la plus éloignée du côté transversal fixe 13, elle délimite avec les différents côtés 11,12 et 13 une empreinte de plus grand format qui correspond à un deuxième format normalisé de barquette 25 ("grande" barquette) - voir la figure 2 et le tracé en trait mixte de la figure 4. Il n'est pas indispensable de prévoir des butées spéciales pour définir cette deuxième position d'utilisation, dans la mesure où la traverse mobile 17, éloignée du côté transversal fixe 13, vient finalement buter contre le bord de l'ouverture du socle 1, dans laquelle est mise en place la matrice 4. On the contrary, when the movable cross member 17 is brought into its other extreme position, the furthest from the fixed transverse side 13, it delimits with the different sides 11, 12 and 13 a larger format imprint which corresponds to a second standardized format of tray 25 ("large" tray) - see Figure 2 and the dashed line in Figure 4. It is not essential to provide special stops to define this second position of use, since the cross mobile 17, distant from the fixed transverse side 13, finally abuts against the edge of the opening of the base 1, in which the matrix 4 is placed.
Pour passer d'une position d'utilisation à l'autre, il suffit à l'opérateur de déplacer en translation manuellement la traverse mobile 17, dans un sens ou dans l'autre, comme indiqué par une flèche 26 sur la figure 4. To pass from one position of use to the other, the operator need only move the movable cross member 17 in translation in one direction or the other, as indicated by an arrow 26 in FIG. 4.
Comme il va de soi, l'invention ne se limite pas à la seule forme d'exécution de cette matrice pour machine à operculer des barquettes qui a été décrite ci-dessus à titre d'exemple ; elle en embrasse, au contraire, toutes les variantes de réalisation et d'application respectant le même principe. C'est ainsi, notamment, que l'on ne s'éloignerait pas du cadre de l'invention en ayant recours à tous équivalents techniques, par exemple pour les moyens de guidage en translation de la traverse mobile, ou encore en destinant éventuellement la même matrice à d'autres domaines d'application, les barquettes n'étant pas nécessairement à usage alimentaire. It goes without saying that the invention is not limited to the sole embodiment of this matrix for tray sealing machine which has been described above by way of example; on the contrary, it embraces all of the variant embodiments and applications respecting the same principle. It is thus, in particular, that one would not depart from the scope of the invention by having recourse to all technical equivalents, for example for the means of guiding in translation of the movable cross member, or alternatively by possibly same matrix with other fields of application, the trays not necessarily being for food use.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9413794A FR2726807B3 (en) | 1994-11-10 | 1994-11-10 | MATRIX FOR TRAY TRAYING MACHINE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9413794A FR2726807B3 (en) | 1994-11-10 | 1994-11-10 | MATRIX FOR TRAY TRAYING MACHINE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2726807A1 true FR2726807A1 (en) | 1996-05-15 |
| FR2726807B3 FR2726807B3 (en) | 1997-01-24 |
Family
ID=9468902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9413794A Expired - Fee Related FR2726807B3 (en) | 1994-11-10 | 1994-11-10 | MATRIX FOR TRAY TRAYING MACHINE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2726807B3 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2799729A1 (en) * | 1999-10-15 | 2001-04-20 | Ora Dynaseal | Container sealing machine used in small-scale food production has platform with recess into which container is fitted and sealing device for lid which is mounted on machine chassis and can be pivoted so that it is above recess |
| 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 |
| FR2845662A1 (en) * | 2002-10-11 | 2004-04-16 | Noel Beche | Cradle for food packaging closing device comprises closed frame delimiting large imprint receiving container, transverse partition pivoted about sliding spindle with locking stud engaging button hole and locked in it by partition sliding |
| EP1810815A2 (en) * | 2006-01-23 | 2007-07-25 | Compac S.r.L. | A heat-welding machine for welding a covering film on a perimeter adge of trays destined for product packaging |
| DE102006020360A1 (en) * | 2006-02-09 | 2007-08-16 | Cfs Germany Gmbh | Sealing station of a packaging machine |
-
1994
- 1994-11-10 FR FR9413794A patent/FR2726807B3/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2799729A1 (en) * | 1999-10-15 | 2001-04-20 | Ora Dynaseal | Container sealing machine used in small-scale food production has platform with recess into which container is fitted and sealing device for lid which is mounted on machine chassis and can be pivoted so that it is above recess |
| 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 |
| WO2001028858A1 (en) * | 1999-10-15 | 2001-04-26 | Ora Dynaseal | Device for sealing various containers |
| WO2001028857A1 (en) * | 1999-10-15 | 2001-04-26 | Ora Dynaseal | Support that can be opened, for a device for sealing various containers |
| FR2845662A1 (en) * | 2002-10-11 | 2004-04-16 | Noel Beche | Cradle for food packaging closing device comprises closed frame delimiting large imprint receiving container, transverse partition pivoted about sliding spindle with locking stud engaging button hole and locked in it by partition sliding |
| EP1810815A2 (en) * | 2006-01-23 | 2007-07-25 | Compac S.r.L. | A heat-welding machine for welding a covering film on a perimeter adge of trays destined for product packaging |
| EP1810815A3 (en) * | 2006-01-23 | 2011-05-18 | Compac S.r.L. | A heat-welding machine for welding a covering film on a perimeter adge of trays destined for product packaging |
| DE102006020360A1 (en) * | 2006-02-09 | 2007-08-16 | Cfs Germany Gmbh | Sealing station of a packaging machine |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2726807B3 (en) | 1997-01-24 |
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