EP0238421A1 - Device for positioning covers on container necks on which they must be heat-sealed - Google Patents

Device for positioning covers on container necks on which they must be heat-sealed Download PDF

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Publication number
EP0238421A1
EP0238421A1 EP87420050A EP87420050A EP0238421A1 EP 0238421 A1 EP0238421 A1 EP 0238421A1 EP 87420050 A EP87420050 A EP 87420050A EP 87420050 A EP87420050 A EP 87420050A EP 0238421 A1 EP0238421 A1 EP 0238421A1
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EP
European Patent Office
Prior art keywords
suction cup
container
lids
positioning
rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87420050A
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German (de)
French (fr)
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EP0238421B1 (en
Inventor
Robert De Vaujany
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Manufacture Lyonnaise de Bouchage SAS MLB
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Manufacture Lyonnaise de Bouchage SAS MLB
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Application filed by Manufacture Lyonnaise de Bouchage SAS MLB filed Critical Manufacture Lyonnaise de Bouchage SAS MLB
Priority to AT87420050T priority Critical patent/ATE51833T1/en
Publication of EP0238421A1 publication Critical patent/EP0238421A1/en
Application granted granted Critical
Publication of EP0238421B1 publication Critical patent/EP0238421B1/en
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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
    • B65B7/2807—Feeding closures

Definitions

  • the present invention relates to the positioning of the lids on the neck of the containers on which they must be heat sealed before the actual heat sealing is carried out, in an automatic packaging line.
  • the lids which are generally supplied in a stack are taken one by one by a sampling device called in this case unstacking device and placed on the neck of a container brought by a conveyor belt or similar, the container with its cover are then transferred by means of the transport system to the heat-sealing station where the closure of the container by heat-sealing must be carried out on the latter of the cover placed on its neck.
  • unstacking device a sampling device
  • the container with its cover are then transferred by means of the transport system to the heat-sealing station where the closure of the container by heat-sealing must be carried out on the latter of the cover placed on its neck.
  • the lids which are very light, are moved or even removed from the neck during their transfer from the unstacking station to the heat-sealing station.
  • US Pat. No. 3,908,340 shows a device for fixing lids on containers, in which the positioning of the lids is carried out on the containers while they are in motion, and in which a prepositioning of the lids is made by means of a welding point made on these at the end of their installation on the container.
  • This device does not completely avoid displacement or improper positioning of the lids, because the prepositioning is only carried out at the end of the establishment of the lids. It therefore does not ensure precise positioning of the lids on the neck of the containers.
  • the object of the present invention is therefore to remedy these drawbacks and to provide a method as well as a device making it possible to obtain a precise positioning of the seal on its container before the heat-sealing is carried out.
  • This object is achieved in the method according to the invention in that it consists in simultaneously carrying out in a single step the unstacking of the lids, their fitting on the neck of each container and their fixing thereon by the realization of at least one welding point, the container remaining fixed during this step.
  • the device for removing the lids is provided with a heating element constituting the pre-positioning device and capable of producing at least one spot of welding on the liner deposited on the neck of a container simultaneously with placing it on this container by the sampling device.
  • the sampling device is a destacking device formed by at least one suction cup or the like movable vertically, from a high position in which it is able to come and collect a cover at the bottom of a stack of covers in a low position in which it is able to place the seal closed on the neck of a container
  • this suction cup performing during this movement a rotation of 180 °, the part of the heating element capable of coming into contact with the cover is located at a distance from the axis of rotation of the suction cup substantially equal to the distance separating the end of this suction cup from its axis of rotation, which makes it possible to guarantee that the point or points of welding on the cover will be performed simultaneously with the removal thereof by the removal system.
  • the prepositioning device is rotatably mounted around the axis of rotation of the suction cup of the sampling device and is able to pivot relative to this suction cup so as to be substantially parallel to the suction cup in position low of the suction cup but angularly offset relative to this suction cup in the high position thereof, so as not to come into contact with the lids located in the supply store, which allows to avoid heating and therefore the deterioration of the lids by the prepositioning device before they are placed on the neck of the container.
  • This packaging line consists essentially of an endless conveyor 2 on the path of which are arranged different work stations 3,4,5, in this case a station 3 for loading the containers 7 to be closed, a station 4 for removal of the lids 8 and placement of these on the neck of the containers 7 as well as a heat-sealing station 5 for these lids 8 on the containers 7.
  • the picking station 4 is in this case a destacking station and is essentially formed by a support frame 6 on which are fixed a magazine 9, arranged above the conveyor 2 and in which the lids 8 are stacked, and a device 10 which is able to collect the lids 8 stacked in the magazine 9 one by one and to deposit them on the containers 7.
  • This device 10 comprises a carriage 11 mounted movable vertically, along two columns 12, and actuated by a jack 13.
  • this carriage 11 At the front of this carriage 11 extends a cylindrical rod 17 of horizontal axis 16 and perpendicular to the longitudinal direction of the conveyor 2, this rod 17 being rotatably mounted in the carriage 11.
  • a stirrup 15 comprising two wings 15a and a stop face 15b between these two wings is rotatably mounted on the rod 17 at the front end of the latter.
  • a pneumatic suction cup 21 On this rod 17 is also fixed a pneumatic suction cup 21, the feeding system of which is not shown in the drawing for greater clarity.
  • This suction cup 21 is arranged in the interval between the two wings 15a of the stirrup 15 and is able to pivot between these wings 15a when the stirrup pivots relative to the rod 17.
  • This block 23 also comprises wings 23a delimiting between them an interval within which the suction cup 21 can move during the relative pivoting of the stirrup 15 and of the rod 17 and an abutment face 23c between these two wings.
  • Each wing 23a of the block 23 is provided with a projection 23b, the end of which is situated at the same distance from the axis of rotation 16 as the end of the suction cup 21, this distance being equal to that separating the axis of rotation 16 of the cover 8 located at the bottom of the magazine 4, in the high position of the device 10 for picking up and prepositioning, and to that separating the axis of rotation 16 from the upper end of the container 7 located in below the sampling device 10, in the low position thereof.
  • the projections 23b are oriented horizontally in the upper position of the sampling device 10 and are oriented vertically in the lower position thereof.
  • a heating cartridge 24 of a type known per se.
  • the block 23 is made of a material which conducts heat well, and in particular of a metallic material so that the projections 23b of its wings are heated by the cartridge 24.
  • a roller (not shown in the drawing) whose axis of rotation 18 is eccentric relative to the axis of rotation 16 of the cylindrical rod 17 (see FIGS. 3 and 4 ).
  • This roller cooperates, in a manner known per se, with a cam profile 19 produced on the frame 6 (see FIGS. 3 and 4) and comprising two edges at 90 ° 20, this roller being pushed against the cam profile by a spring. (not shown in the drawing).
  • the axis of rotation 18 of the roller is located below the axis of rotation 16 of the rod 17 when the carriage It is in the high position (See Figure 3) and is at opposite located above the axis of rotation (16) of this rod 17 when the carriage 11 is in the low position (see FIG. 4).
  • the rod 17 and the suction cup 21 carry out according to the same process two rotations upwards of 90 °, ie an overall rotation of 180 ° while the pre-positioning block performs only one rotation towards the top of 90 °, the suction cup 21 driving the stirrup 15 and consequently the block 23 during the second rotation, by its abutment against the abutment face 15b of this stirrup located between the two wings 15a thereof .
  • the suction cup 21 takes up by suction the cover 8 which is located at the lower end of the stack of the magazine 9.
  • the device 10 then descends, and the suction cup 21 simultaneously pivots downwards as explained above so as to bring the cover 8 which it has just grasped onto the neck of the container 7 brought by the transporter 2.
  • the cover 8 is heat sealed in two places 8a simultaneously with its positioning on the container 7 by the two heated projections 23b produced on the block 23, this heat-sealing being sufficient to ensure the prepositioning of the cover 8 on the container and guaranteeing that it is properly maintained ci in position when passing from the unstacking station 4 to the heat sealing station 5 where the cover 8 will be permanently fixed to the container.
  • the welding carried out on the cover is carried out not at one or two points, but on portions of lines and is therefore more efficient than spot welds.
  • the shape of these projections 23b allows adaptation of the device to several diameters of cover and is therefore particularly advantageous.
  • the relative angle of rotation between the block 23 and the suction cup 21 could have a value other than 90 ° (for example by providing an inclined surface between the wings 15a of the stirrup), the essential being that the projections 23b of the block 23 do not come into contact with the lids 8 housed in the magazine 9 when the sampling device 10 is in its high position.

Abstract

An apparatus for fitting heat-sealed containers comprises a conveyor for displacing a succession of the containers in a normal direction of travel through a station and for arresting each of the containers momentarily in the station, a supply at the station holding a stack of caps, a grab for taking a cap off the stack and positioning it atop the container arrested in the station and a welding tool for tack welding the cap to the container in the station as the cap is being positioned on the container and while it is still held by the grab, and a device downstream of the station for heat shrinking the caps on the bottles. The welding tool and grab are practically the same device and work very closely together. Thus there is no time during which the cap is not being positively held. Before the grab releases it, it is tack-welded to the bottle.

Description

La présente invention concerne le positionnement des opercules sur le goulot des récipients sur lesquels ils doivent être thermoscellés avant la réalisation du thermoscellage proprement dit, dans une chaîne de conditionnement automatique.The present invention relates to the positioning of the lids on the neck of the containers on which they must be heat sealed before the actual heat sealing is carried out, in an automatic packaging line.

En effet, dans de tels chaînes, les opercules qui sont généralement alimentés en pile, sont pris un par un par un dispositif de prélèvement appelé en l'occurence dispositif de dépilage et placés sur le goulot d'un récipient amené par une bande transporteuse ou similaire, le récipient avec son opercule sont alors transférés au moyen du système de transport au poste de thermoscellage où doit être réalisée l'obturation du récipient par thermoscellage sur celui-ci de l'opercule placé sur son goulot. Or il arrive très fréquemment que les opercules, qui sont très légers soient déplacés voire même enlevés du goulot lors de leur transfert du poste de dépilage au poste de thermoscellage.Indeed, in such chains, the lids which are generally supplied in a stack, are taken one by one by a sampling device called in this case unstacking device and placed on the neck of a container brought by a conveyor belt or similar, the container with its cover are then transferred by means of the transport system to the heat-sealing station where the closure of the container by heat-sealing must be carried out on the latter of the cover placed on its neck. However, it very often happens that the lids, which are very light, are moved or even removed from the neck during their transfer from the unstacking station to the heat-sealing station.

En outre, il n'est pas possible de réaliser l'opération de thermoscellage au niveau du poste de dépilage car cette opération de thermoscellage implique l'application d'une pression plus ou moins élevée qui est incompatible avec la structure essentiellement fragile du système de dépilage, qui effectue notamment une rotation de 180° lors de son fonctionnement.Furthermore, it is not possible to carry out the heat sealing operation at the unstacking station because this heat sealing operation involves the application of a more or less high pressure which is incompatible with the essentially fragile structure of the unstacking, which in particular rotates 180 ° during its operation.

Le US-3 908 340 montre un dispositif de fixation d'opercules sur des récipients, dans lequel la mise en place des opercules s'effectue sur les récipients, alors que ceux-ci sont en mouvement, et dans lequel un prépositionnement des opércules est réalisé au moyen d'un point de soudage effectué sur ceux-ci à la fin de leur mise en place sur le récipient.US Pat. No. 3,908,340 shows a device for fixing lids on containers, in which the positioning of the lids is carried out on the containers while they are in motion, and in which a prepositioning of the lids is made by means of a welding point made on these at the end of their installation on the container.

Ce dispositif ne permet pas d'éviter totalement un déplacement ou un mauvais positionnement des opercules, du fait que le prépositionnement n'est effectué qu'à la fin de la mise en place des opercules. Il ne permet donc pas d'assurer un positionnement précis des opercules sur le goulot des récipients.This device does not completely avoid displacement or improper positioning of the lids, because the prepositioning is only carried out at the end of the establishment of the lids. It therefore does not ensure precise positioning of the lids on the neck of the containers.

Le but de la présente invention est donc de remédier à ces inconvénients et de fournir un procédé ainsi qu'un dispositif permettant d'obtenir un positionnement précis de l'opercule sur son récipient avant la réalisation du thermoscellage.The object of the present invention is therefore to remedy these drawbacks and to provide a method as well as a device making it possible to obtain a precise positioning of the seal on its container before the heat-sealing is carried out.

Ce but est atteint dans le procédé selon l'invention en ce que celui-ci consiste à réaliser simultanément en une seule étape le dépilage des opercules, leur pose sur le goulot de chaque récipient et leur fixation sur celui-ci par la réalisation d'au moins un point de soudure, le récipient restant fixe au cours de cette étape..This object is achieved in the method according to the invention in that it consists in simultaneously carrying out in a single step the unstacking of the lids, their fitting on the neck of each container and their fixing thereon by the realization of at least one welding point, the container remaining fixed during this step.

Le fait que les différentes opérations de positionnement soient effectuées dans un même mouvement et sur un récipient fixe permet de garantir un positionnement très précis des opercules -sur le goulot des récipients et la réalisation des points de soudure permet de garantir le prépositionnement des opercules sur leur récipient tout au long de la chaîne de transfert et, par conséquent, un positionnement correct de ces opercules pour l'opération de thermoscellage.The fact that the various positioning operations are carried out in the same movement and on a fixed container makes it possible to guarantee a very precise positioning of the lids - on the neck of the containers and the production of the welding points makes it possible to guarantee the prepositioning of the lids on their container along the transfer chain and, therefore, correct positioning of these lids for the heat sealing operation.

Avantageusement, pour la mise en oeuvre de ce procédé, le dispositif de prélèvement des opercules est muni d'un élément chauffant constituant le dispositif de prépositionnement et apte à réaliser au moins un point de soudure sur l'opercule déposé sur le goulot d'un récipient simultanément à la pose de celui-ci sur ce récipient par le dispositif de prélèvement.Advantageously, for the implementation of this method, the device for removing the lids is provided with a heating element constituting the pre-positioning device and capable of producing at least one spot of welding on the liner deposited on the neck of a container simultaneously with placing it on this container by the sampling device.

Dans le cas où le dispositif de prélèvement est un dispositif de dépilage formé par au moins une ventouse ou similaire déplaçable verticalement, d'une position haute dans laquelle elle est apte à venir prélever un opercule au bas d'une pile d'opercules dans une position basse dans laquelle elle est apte à placer l'opercule saisi sur le goulot d'un récipient, cette ventouse effectuant au cours de ce déplacement une rotation de 180°, la partie de l'élément chauffant apte à entrer en contact avec l'opercule est située à une distance de l'axe de rotation de la ventouse sensiblement égale à la distance séparant l'extrémité de cette ventouse de son axe de rotation, ce qui permet de garantir que le ou les points de soudure sur l'opercule seront réalisés simultanément à la dépose de celui-ci par le système de prélèvement.In the case where the sampling device is a destacking device formed by at least one suction cup or the like movable vertically, from a high position in which it is able to come and collect a cover at the bottom of a stack of covers in a low position in which it is able to place the seal closed on the neck of a container, this suction cup performing during this movement a rotation of 180 °, the part of the heating element capable of coming into contact with the cover is located at a distance from the axis of rotation of the suction cup substantially equal to the distance separating the end of this suction cup from its axis of rotation, which makes it possible to guarantee that the point or points of welding on the cover will be performed simultaneously with the removal thereof by the removal system.

Selon une forme de réalisation préférée, le dispositif de prépositionnement est monté rotatif autour de l'axe de rotation de la ventouse du dispositif de prélèvement et est apte à pivoter par rapport à cette ventouse de façon à se trouver sensiblement parallèle à la ventouse en position basse de la ventouse mais décalé angulairement par rapport à cette ventouse en position haute de celle-ci, de façon à ne pas entrer en contact avec les opercules situés dans le magasin d'alimentation, ce qui permet d'éviter le chauffage et donc la détérioration des opercules par le dispositif de prépositionnement avant leur mise en place sur le goulot du récipient.According to a preferred embodiment, the prepositioning device is rotatably mounted around the axis of rotation of the suction cup of the sampling device and is able to pivot relative to this suction cup so as to be substantially parallel to the suction cup in position low of the suction cup but angularly offset relative to this suction cup in the high position thereof, so as not to come into contact with the lids located in the supply store, which allows to avoid heating and therefore the deterioration of the lids by the prepositioning device before they are placed on the neck of the container.

De toute façon l'invention sera mieux comprise et d'autres caractéristiques de celle-ci seront mises en évidence à l'aide de la description qui suit en référence au dessin schématique annexé illustrant à titre d'exemple non limitatif une forme de réalisation préférée d'un dispositif de mise en oeuvre du procédé de positionnement selon cette invention.

  • Figure 1 est une vue de dessus d'une chaîne de conditionnement dans laquelle est incorporé le dispositif de positionnement selon l'invention,
  • Figure 2 est, à échelle agrandie, une vue en perspective du dispositif de positionnement,
  • Figure 3 est une vue en coupe longitudinale du dispositif de figure 2, en position haute du dispositif de positionnement,
  • Figure 4 est une vue similaire à figure 3 en position basse du dispositif de positionnement.
  • La figure 1 montre un exemple de chaîne de conditionnement dans laquelle le dispositif de prépositionnement d'opercules selon l'invention et apte à être inserré.
Anyway the invention will be better understood and other characteristics thereof will be highlighted with the aid of the description which follows with reference to the appended schematic drawing illustrating by way of nonlimiting example a preferred embodiment of a device for implementing the positioning method according to this invention.
  • FIG. 1 is a top view of a packaging chain in which the positioning device according to the invention is incorporated,
  • FIG. 2 is, on an enlarged scale, a perspective view of the positioning device,
  • FIG. 3 is a view in longitudinal section of the device of FIG. 2, in the high position of the positioning device,
  • Figure 4 is a view similar to Figure 3 in the lower position of the positioning device.
  • FIG. 1 shows an example of a packaging chain in which the device for prepositioning the lids according to the invention and capable of being inserted.

Cette chaîne de conditionnement est formée essentiellement d'un transporteur sans fin 2 sur le parcours duquel sont disposés différents postes de travail 3,4,5, en l'occurence un poste 3 de chargement des récipients 7 devant être obturés, un poste 4 de prélèvement des opercules 8 et de placement de ceux-ci sur le goulot des récipients 7 ainsi qu'un poste de thermoscellage 5 de ces opercules 8 sur les récipients 7.This packaging line consists essentially of an endless conveyor 2 on the path of which are arranged different work stations 3,4,5, in this case a station 3 for loading the containers 7 to be closed, a station 4 for removal of the lids 8 and placement of these on the neck of the containers 7 as well as a heat-sealing station 5 for these lids 8 on the containers 7.

Ces différents postes sont connus en soi et ne sont donc pas détaillés de façon plus précise, mis à part le poste de prélèvement 4 qui doit assurer également le prépositionnement des opercules 8 et qui est représenté de façon plus précise sur les figures 2 à 4.These different stations are known per se and are therefore not detailed in more detail, apart from the sampling station 4 which must also ensure the prepositioning of the lids 8 and which is shown more precisely in FIGS. 2 to 4.

Ainsi que le montre la figure 2, le poste de prélèvement 4 est en l'occurence un poste de dépilage et est formé essentiellement d'un bâti support 6 sur lequel sont fixés un magasin 9, disposé au-dessus du transporteur 2 et dans lequel sont empilés les opercules 8, et un dispositif 10 qui est apte à venir prélever un par un les opercules 8 empilés dans le magasin 9 et à les déposer sur les récipients 7.As shown in Figure 2, the picking station 4 is in this case a destacking station and is essentially formed by a support frame 6 on which are fixed a magazine 9, arranged above the conveyor 2 and in which the lids 8 are stacked, and a device 10 which is able to collect the lids 8 stacked in the magazine 9 one by one and to deposit them on the containers 7.

Ce dispositif 10 comprend un chariot 11 monté déplaçable verticalement, le long de deux colonnes 12, et actionné par un vérin 13.This device 10 comprises a carriage 11 mounted movable vertically, along two columns 12, and actuated by a jack 13.

A l'avant de ce chariot 11 s'étend une tige cylindrique 17 d'axe 16 horizontal et perpendiculaire à la direction longitudinale du transporteur 2, cette tige 17 étant montée rotative dans le chariot 11.At the front of this carriage 11 extends a cylindrical rod 17 of horizontal axis 16 and perpendicular to the longitudinal direction of the conveyor 2, this rod 17 being rotatably mounted in the carriage 11.

Un étrier 15 comportant deux ailes 15a et une face de butée 15b entre ces deux ailes est monté rotatif sur la tige 17 à l'extrémité avant de celle-ci. Sur cette tige 17 est également fixée une ventouse pneumatique 21 dont le système d'alimentation n'est pas représenté sur le dessin pour plus de clarté. Cette ventouse 21 est disposée dans l'intervalle entre les deux ailes 15a de l'étrier 15 et est apte à pivoter entre ces ailes 15a lorsque l'étrier pivote par rapport à la tige 17.A stirrup 15 comprising two wings 15a and a stop face 15b between these two wings is rotatably mounted on the rod 17 at the front end of the latter. On this rod 17 is also fixed a pneumatic suction cup 21, the feeding system of which is not shown in the drawing for greater clarity. This suction cup 21 is arranged in the interval between the two wings 15a of the stirrup 15 and is able to pivot between these wings 15a when the stirrup pivots relative to the rod 17.

Par ailleurs sur la face inférieure 15b de l'étrier 15 est fixé, par l'intermédiaire de rondelles isolantes 22, un bloc 23 de prépositionnement des opercules 8.Furthermore, on the lower face 15b of the stirrup 15 is fixed, by means of insulating washers 22, a block 23 for prepositioning the lids 8.

Ce bloc 23 comporte également des ailes 23a délimitant entre elles un intervalle à l'intérieur duquel peut se déplacer la ventouse 21 lors du pivotement relatif de l'étrier 15 et de la tige 17 et une face de butée 23c entre ces deux ailes.This block 23 also comprises wings 23a delimiting between them an interval within which the suction cup 21 can move during the relative pivoting of the stirrup 15 and of the rod 17 and an abutment face 23c between these two wings.

Chaque aile 23a du bloc 23 est munie d'une saillie 23b dont l'extrémité est située à la même distance par rapport à l'axe de rotation 16 que l'extrémité de la ventouse 21, cette distance étant égale à celle séparant l'axe de rotation 16 de l'opercule 8 situé au bas du magasin 4, dans la position haute du dispositif 10 de prélèvement et de prépositionnement, et à celle séparant l'axe de rotation 16 de l'extrémité supérieure du récipient 7 se trouvant en dessous du dispositif de prélèvement 10, dans la position basse de celui-ci. Ainsi que le montrent les figures 3 et 4, les saillies 23b sont orientées horizontalement en position haute du dispositif de prélèvement 10 et sont orientées verticalement en position basse de celui-ci. A l'intérieur du bloc 23 est disposée une cartouche chauffante 24 de type connu en soi. Le bloc 23 est en un matériau conduisant bien la chaleur et notamment en un matériau métallique de sorte que les saillies 23b de ses ailes sont chauffées par la cartouche 24.Each wing 23a of the block 23 is provided with a projection 23b, the end of which is situated at the same distance from the axis of rotation 16 as the end of the suction cup 21, this distance being equal to that separating the axis of rotation 16 of the cover 8 located at the bottom of the magazine 4, in the high position of the device 10 for picking up and prepositioning, and to that separating the axis of rotation 16 from the upper end of the container 7 located in below the sampling device 10, in the low position thereof. As shown in Figures 3 and 4, the projections 23b are oriented horizontally in the upper position of the sampling device 10 and are oriented vertically in the lower position thereof. Inside the block 23 is disposed a heating cartridge 24 of a type known per se. The block 23 is made of a material which conducts heat well, and in particular of a metallic material so that the projections 23b of its wings are heated by the cartridge 24.

A l'extrémité arrière de la tige 17 est fixé un galet (non représenté sur le dessin) dont l'axe de rotation 18 est excentré par rapport à l'axe de rotation 16 de la tige cylindrique 17 (Cf. figure 3 et 4). Ce galet coopère, de façon connue en soi, avec un profil de came 19 réalisé sur le bâti 6 (Cf. figure 3 et 4) et comportant deux arêtes à 90° 20, ce galet étant poussé contre le profil de came par un ressort (non représenté sur le dessin).At the rear end of the rod 17 is fixed a roller (not shown in the drawing) whose axis of rotation 18 is eccentric relative to the axis of rotation 16 of the cylindrical rod 17 (see FIGS. 3 and 4 ). This roller cooperates, in a manner known per se, with a cam profile 19 produced on the frame 6 (see FIGS. 3 and 4) and comprising two edges at 90 ° 20, this roller being pushed against the cam profile by a spring. (not shown in the drawing).

Ainsi que le montrent les figures 3 et 4, l'axe de rotation 18 du galet est situé en dessous de l'axe de rotation 16 de la tige 17 lorsque le chariot Il est en position haute (Cf. figure 3) et est au contraire situé au-dessus de l'axe de rotation (16) de cette tige 17 lorsque le chariot 11 est en position basse (Cf. figure 4).As shown in Figures 3 and 4, the axis of rotation 18 of the roller is located below the axis of rotation 16 of the rod 17 when the carriage It is in the high position (See Figure 3) and is at opposite located above the axis of rotation (16) of this rod 17 when the carriage 11 is in the low position (see FIG. 4).

Lorsque le chariot Il descend, à partir de sa position haute, le passage de la première arête 20 du profil de came 19 par le galet provoque une première rotation de 90° vers le bas de la tige 17 et de la ventouse 21 par basculement de la tige 17 autour de son axe 16. Le passage de la seconde arête 20 par le goulot provoque ensuite une seconde rotation vers le bas de 90° de la tige 17, ainsi qu'une rotation vers le bas simultanée de 90° du bloc de prépositionnement 23, celui-ci étant entraîné par son propre poids et par la ventouse 21 en butée contre la face de butée 23c située entre les deux ailes 23a de celui-ci.When the carriage It descends, from its high position, the passage of the first edge 20 of the cam profile 19 by the roller causes a first rotation of 90 ° downwards of the rod 17 and of the suction cup 21 by tilting of the rod 17 around its axis 16. The passage of the second edge 20 through the neck then causes a second downward rotation of 90 ° of the rod 17, as well as a simultaneous downward rotation of 90 ° of the block of prepositioning 23, the latter being driven by its own weight and by the suction cup 21 in abutment against the abutment face 23c located between the two wings 23a thereof.

Ainsi lorsque le dispositif 10 passe de sa position haute à sa position basse, la tige 17 et la ventouse 21 effectuant une rotation vers le bas de 180°, tandis que le bloc 23 n'effectue qu'une rotation de 90°.Thus when the device 10 passes from its high position to its low position, the rod 17 and the suction cup 21 performing a downward rotation of 180 °, while the block 23 performs only a rotation of 90 °.

Inversement, lorsque le dispositif 10 remonte, la tige 17 et la ventouse 21 effectuent selon le même processus deux rotations vers le haut de 90°, soit une rotation globale de 180° tandis que le bloc de prépositionnement n'effectue qu'une rotation vers le haut de 90°, la ventouse 21 entrainant l'étrier 15 et par conséquent le bloc 23 lors de la seconde rotation, par sa venue en butée contre la face de butée 15b de cet étrier située entre les deux ailes 15a de celui-ci.Conversely, when the device 10 rises, the rod 17 and the suction cup 21 carry out according to the same process two rotations upwards of 90 °, ie an overall rotation of 180 ° while the pre-positioning block performs only one rotation towards the top of 90 °, the suction cup 21 driving the stirrup 15 and consequently the block 23 during the second rotation, by its abutment against the abutment face 15b of this stirrup located between the two wings 15a thereof .

Lorsque le dispositif 10 est dans sa position haute montrée à la figure 3, la ventouse 21 prélève par aspiration l'opercule 8 qui est situé à l'extrémité inférieure de la pile du magasin 9.When the device 10 is in its high position shown in FIG. 3, the suction cup 21 takes up by suction the cover 8 which is located at the lower end of the stack of the magazine 9.

Le dispositif 10 descend ensuite, et la ventouse 21 pivote simultanément vers le bas comme expliqué précédemment de façon à amener l'opercule 8 qu'elle vient de saisir sur le goulot du récipient 7 amené par le transporteur 2. L'opercule 8 est thermoscellé en deux endroits 8a simultanément à sa mise en place sur le récipient 7 par les deux saillies chauffées 23b réalisées sur le bloc 23, ce thermoscellage étant suffisant pour assurer le prépositionnement de l'opercule 8 sur le récipient et garantir le bon maintien de celui-ci en position lors du passage du poste de dépilage 4 au poste de thermoscellage 5 où l'opercule 8 sera définitivement fixé au récipient.The device 10 then descends, and the suction cup 21 simultaneously pivots downwards as explained above so as to bring the cover 8 which it has just grasped onto the neck of the container 7 brought by the transporter 2. The cover 8 is heat sealed in two places 8a simultaneously with its positioning on the container 7 by the two heated projections 23b produced on the block 23, this heat-sealing being sufficient to ensure the prepositioning of the cover 8 on the container and guaranteeing that it is properly maintained ci in position when passing from the unstacking station 4 to the heat sealing station 5 where the cover 8 will be permanently fixed to the container.

On notera que grâce à la forme non ponctuelle des saillies 23b le soudage réalisé sur l'opercule s'effectue non pas en un ou deux points, mais sur des portions de lignes et est donc plus efficace que des soudages ponctuels. En outre la forme de ces saillies 23b permet une adaptation du dispositif à plusieurs diamètres d'opercule et est donc particulièrement avantageuse.Note that thanks to the non-punctual shape of the projections 23b the welding carried out on the cover is carried out not at one or two points, but on portions of lines and is therefore more efficient than spot welds. In addition, the shape of these projections 23b allows adaptation of the device to several diameters of cover and is therefore particularly advantageous.

Bien entendu la présente invention en se limite pas au seul exemple.de réalisation montré ci-dessus à titre d'exemple non limitatif mais en embrasse au contraire toutes les formes de réalisation similaires ou équivalentes.Of course, the present invention is not limited to the sole example of an embodiment shown above by way of non-limiting example, but on the contrary embraces all similar or equivalent embodiments.

C'est ainsi que par exemple l'angle de rotation relatif entre le bloc 23 et la ventouse 21 pourrait avoir une valeur autre que 90° (par exemple en prévoyant une surface inclinée entre les ailes 15a de l'étrier), l'essentiel étant que les saillies 23b du bloc 23 ne viennent pas en contact avec les opercules 8 logés dans le magasin 9 lorsque le dispositif de prélèvement 10 est dans sa position haute.Thus, for example, the relative angle of rotation between the block 23 and the suction cup 21 could have a value other than 90 ° (for example by providing an inclined surface between the wings 15a of the stirrup), the essential being that the projections 23b of the block 23 do not come into contact with the lids 8 housed in the magazine 9 when the sampling device 10 is in its high position.

Claims (8)

1. Procédé de positionnement d'opercules (8) ou similaires, sur le goulot de récipients (7) sur lesquels ils sont destinés à être fixés par themoscellage, caractérisé en ce qu'il consiste à réaliser simultanément en une seule étape le dépilage des opercules (8), leur pose sur le goulot de chaque récipient (7) et leur fixation sur celui-ci par la réalisation d'au moins un point de soudure, le récipient (7) restant fixe au cours de cette étape.1. A method of positioning lids (8) or the like, on the neck of containers (7) on which they are intended to be fixed by heat-sealing, characterized in that it consists in simultaneously unstacking the lids (8), their installation on the neck of each container (7) and their fixing thereon by producing at least one welding point, the container (7) remaining fixed during this step. 2. Dispositif de positionnement d'opercules pour la mise en oeuvre du procédé selon la revendication 1, caractérisé en ce qu'il est formé d'un élément chauffant (23) fixé sur le dispositif (10) de prélèvement des opercules et apte à réaliser au moins un point de soudure (8a) sur l'opercule (8) déposé sur le goulot d'un récipient (7) simultanément à la pose de celui-ci sur ce récipient par le dispositif de prélèvement.2. Device for positioning lids for implementing the method according to claim 1, characterized in that it is formed by a heating element (23) fixed on the device (10) for removing lids and suitable for make at least one welding point (8a) on the cover (8) deposited on the neck of a container (7) simultaneously with the placing of the latter on this container by the sampling device. 3. Dispositif selon la revendication 2, caractérisé en ce que , dans le cas où le dispositif de prélèvement (10) est un dispositif de dépilage formé par au moins une ventouse (21) ou similaire déplaçable verticalement, d'une position haute dans laquelle elle est apte à venir prélever un opercule (8) au bas d'une pile d'opercules , dans une position basse dans laquelle elle est apte à placer l'opercule (8) saisi sur le goulot d'un récipient (7), cette ventouse (21) effectuant au cours de ce déplacement une rotation de 180°, la partie (23b) de l'élément chauffant (23) apte à entrer en contact avec l'opercule (8) est située à une distance de l'axe (16) de rotation de la ventouse (21) sensiblement égale à la distance séparant l'extrémité de cette ventouse (21) de son axe de rotation (16).3. Device according to claim 2, characterized in that, in the case where the sampling device (10) is a destacking device formed by at least one suction cup (21) or the like movable vertically, from a high position in which it is able to come and take a cover (8) from the bottom of a stack of covers, in a low position in which it is able to place the cover (8) grasped on the neck of a container (7), this suction cup (21) performing during this movement a rotation of 180 °, the part (23b) of the heating element (23) capable of coming into contact with the cover (8) is located at a distance from the axis (16) of rotation of the suction cup (21) substantially equal to the distance separating the end of this suction cup (21) from its axis of rotation (16). 4. Dispositif selon la revendication 3, caractérisé en ce que le dispositif de positionnement (23) est monté rotatif autour de l'axe de rotation (16) de la ventouse (21) du dispositif de prélèvement (10) et en ce qu'il est apte à pivoter par rapport à cette ventouse (21) de façon à se trouver sensiblement parallèle à la ventouse en position basse de la ventouse (21) mais décalé angulairement par rapport à cette ventouse (21) en position haute de celle-ci, de façon à ne pas entrer en contact avec les opercules (8) situés dans le magasin d'alimentation (9).4. Device according to claim 3, characterized in that the positioning device (23) is rotatably mounted around the axis of rotation (16) of the suction cup (21) of the sampling device (10) and in that it is able to pivot relative to this suction cup (21) so as to be substantially parallel to the suction cup in the low position of the suction cup (21) but angularly offset relative to this suction cup (21) in the high position thereof , so as not to come into contact with the lids (8) located in the supply magazine (9). 5. Dispositif selon la revendication 4, caractérisé en ce que le dispositif de positionnement comporte deux faces de butée (15b, 23c) faisant entre elles un angle sensiblement égal à 90° et aptes à coopérer chacune avec la ventouse (21) lors du mouvement de montée et de descente de celle-ci pour faire pivoter le dispositif de positionnement (23) vers le haut ou vers le bas.5. Device according to claim 4, characterized in that the positioning device comprises two abutment faces (15b, 23c) forming between them an angle substantially equal to 90 ° and capable of cooperating each with the suction cup (21) during movement up and down this to rotate the positioning device (23) up or down. 6. Dispositif selon la revendication 15, caractérisé en ce que le dispositif de positionnement est formé d'un premier bloc (15) en forme d'étrier monté rotatif sur l'axe (16) de pivotement de la ventouse (21) et comportant deux ailes (15a) délimitant entre elles la face de butée (15b) et un passage permettant le déplacement de la ventouse (21) lors de son pivotement et d'un second bloc (23) comportant une cartouche chauffante (24) et présentant également deux ailes (23a) délimitant entre elles la face de butée (23c) et un passage pour le déplacement de la ventouse (21), ce second bloc (23) étant fixé au premier (15) par des moyens isolants thermiquement (22)6. Device according to claim 15, characterized in that the positioning device is formed of a first block (15) in the form of a stirrup mounted rotatably on the axis (16) of pivoting of the suction cup (21) and comprising two wings (15a) delimiting between them the abutment face (15b) and a passage allowing the displacement of the suction cup (21) during its pivoting and of a second block (23) comprising a heating cartridge (24) and also having two wings (23a) delimiting between them the abutment face (23c) and a passage for the displacement of the suction cup (21), this second block (23) being fixed to the first (15) by thermally insulating means (22) 7. Dispositif selon la revendication 6 caractérisé en ce que la partie de l'élément chauffant (23) apte à entrer en contact avec l'opercule (8) est formée par au moins une saillie (23b) formé sur au moins une aile (23a) du bloc (23).7. Device according to claim 6 characterized in that the part of the heating element (23) capable of coming into contact with the cover (8) is formed by at least one projection (23b) formed on at least one wing ( 23a) of the block (23). 8. Dispositif selon la revendication 7, caractérisé en ce que chaque saillie (23b) s'étend sur toute la largeur de l'aile (23a) correspondante.8. Device according to claim 7, characterized in that each projection (23b) extends over the entire width of the wing (23a) corresponding.
EP87420050A 1986-02-19 1987-02-18 Device for positioning covers on container necks on which they must be heat-sealed Expired - Lifetime EP0238421B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87420050T ATE51833T1 (en) 1986-02-19 1987-02-18 DEVICE FOR POSITIONING LIDS ON CONTAINER NECKS TO WHICH THEY MUST BE HEAT SEALED.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8602763 1986-02-19
FR8602763A FR2594410B1 (en) 1986-02-19 1986-02-19 METHOD FOR PREPOSITIONING LIDS ON THE NECK OF CONTAINERS ON WHICH THEY SHOULD BE THERMOSCELS AND DEVICE FOR IMPLEMENTING SAME

Publications (2)

Publication Number Publication Date
EP0238421A1 true EP0238421A1 (en) 1987-09-23
EP0238421B1 EP0238421B1 (en) 1990-04-11

Family

ID=9332605

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Application Number Title Priority Date Filing Date
EP87420050A Expired - Lifetime EP0238421B1 (en) 1986-02-19 1987-02-18 Device for positioning covers on container necks on which they must be heat-sealed

Country Status (7)

Country Link
US (1) US4750312A (en)
EP (1) EP0238421B1 (en)
JP (1) JPS62193906A (en)
AT (1) ATE51833T1 (en)
DE (1) DE3762222D1 (en)
ES (1) ES2014031B3 (en)
FR (1) FR2594410B1 (en)

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EP0421543A1 (en) * 1989-10-03 1991-04-10 Shikoku Kakoki Co., Ltd. Apparatus for capping containers
CN108639449A (en) * 2018-03-27 2018-10-12 王步熬 A kind of tea is packed for compression joint mechanism
CN111806743A (en) * 2020-07-21 2020-10-23 常德比克曼生物科技有限公司 Production equipment for culture vessel

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US4981649A (en) * 1988-03-25 1991-01-01 Snow Brand Milk Products Co., Ltd. Means for lid sterilization and temporal sealing
US5946886A (en) * 1997-09-17 1999-09-07 Sweetheart Cup Systems for transferring and repositioning container lids
DE29908075U1 (en) * 1999-05-06 2000-09-14 Gea Finnah Gmbh Device for closing plastic bottles
ES2230955B1 (en) * 2002-08-12 2006-06-16 Big Drum Iberica, S.A. ROTARY DEVICE FOR PLACEMENT OF CONTAINER COVERS IN A FILLING MACHINE.
US20060242927A1 (en) * 2005-04-27 2006-11-02 Label Makers, Inc. Lid dispensing system with stock cartridges
DE602006004580D1 (en) * 2005-05-06 2009-02-12 Obrist Closures Switzerland METAL CONNECTION WITH RFID DEVICE
FR2887524A1 (en) * 2005-06-23 2006-12-29 1 4 Vin Sarl LOW SPEED INERTAGE MEANS AND DEVICE USING THIS INERTAGE MEANS FOR CONDITIONING A FOOD PRODUCT
GB0608433D0 (en) * 2006-04-28 2006-06-07 Obrist Closures Switzerland Closure with RFID device
CN102285470B (en) * 2011-05-20 2013-02-27 刘丙炎 Automatic holder separation machine
ES2614731T3 (en) * 2012-01-20 2017-06-01 Å&R Carton Lund Ab Apparatus and method for placing lids in containers
WO2015132750A1 (en) * 2014-03-06 2015-09-11 Patent Lab Sa. Method for manufacturing cosmetic product capsules, specifically lipsticks, and relating manufacturing machine
EP3035060B1 (en) 2014-12-18 2017-09-06 F. Hoffmann-La Roche AG Method and device for handling a closing element in a laboratory automation system
CN107323737B (en) * 2017-06-30 2019-07-26 中山诺顿科研技术服务有限公司 Column product packaging machine
CN110871928A (en) * 2018-08-30 2020-03-10 上海相宜机械有限公司 Turnover type film placing device
CN110589048B (en) * 2019-09-23 2021-04-23 华润三九（郴州）制药有限公司 Medicine production is with automatic jar device that seals in succession
US11325729B2 (en) * 2020-08-17 2022-05-10 Winpak Lane, Inc. Lid pick and place system and method of use thereof

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Publication number Priority date Publication date Assignee Title
EP0421543A1 (en) * 1989-10-03 1991-04-10 Shikoku Kakoki Co., Ltd. Apparatus for capping containers
CN108639449A (en) * 2018-03-27 2018-10-12 王步熬 A kind of tea is packed for compression joint mechanism
CN111806743A (en) * 2020-07-21 2020-10-23 常德比克曼生物科技有限公司 Production equipment for culture vessel
CN111806743B (en) * 2020-07-21 2021-07-23 常德比克曼生物科技有限公司 Production equipment for culture vessel

Also Published As

Publication number Publication date
ATE51833T1 (en) 1990-04-15
ES2014031B3 (en) 1990-06-16
DE3762222D1 (en) 1990-05-17
JPS62193906A (en) 1987-08-26
FR2594410A1 (en) 1987-08-21
FR2594410B1 (en) 1988-12-09
EP0238421B1 (en) 1990-04-11
US4750312A (en) 1988-06-14

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