EP0468865B1 - Method for the automatic packaging of products in flexible bags and machine for executing the method - Google Patents
Method for the automatic packaging of products in flexible bags and machine for executing the method Download PDFInfo
- Publication number
- EP0468865B1 EP0468865B1 EP91402016A EP91402016A EP0468865B1 EP 0468865 B1 EP0468865 B1 EP 0468865B1 EP 91402016 A EP91402016 A EP 91402016A EP 91402016 A EP91402016 A EP 91402016A EP 0468865 B1 EP0468865 B1 EP 0468865B1
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- EP
- European Patent Office
- Prior art keywords
- bags
- station
- tie
- closing
- machine
- 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.)
- Expired - Lifetime
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Classifications
-
- 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
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
- B65B43/123—Feeding flat bags connected to form a series or chain
Definitions
- the present invention essentially relates to a process for the automatic packaging of any products, such as for example foodstuffs, in flexible bags.
- the present invention aims to solve the above problems by providing a method and an automatic machine for packaging products in bags, which allow automatic and perfect positioning of the bags, particularly at the level from the heat-sealing station, as well as easy and automatic recovery of cut bag scraps.
- the invention achieves an automatic packaging process for any products, such as for example foodstuffs, in a chain of flexible bags joined together, this process essentially consisting in passing the bags successively to a post of filling and at a sealed bag closing station, and being characterized in that the bags are joined by at least one flexible link which extends in the vicinity of and substantially parallel to the opening of the bags, and in that with the flexible link, pulling is carried out on the bags before heat-sealing in the closure station so as to make the edges of the opening of the previously filled bags perfectly flat and parallel to facilitate their sealed closure along a welding line which is slightly in removal of the link, and after the bags have been sealed, a cut is made between the welding line and the link, then p ar winding the falls previously cut and all connected by the link.
- the present invention also relates to a machine for implementing the method meeting the above characteristics, this machine comprising a station for filling bags joined by a link and a station for sealing these bags, said machine being characterized by Features of claim 2.
- the tensioning means can be constituted by one or more rollers or by one or more tension arms.
- Figure 1 is a very schematic view in elevation of an automatic packaging machine for flexible bags according to this invention.
- FIG. 2 is a schematic plan view from above of the machine shown in FIG. 1.
- a machine according to this invention allows the packaging of plastic bags S in particular, these bags all being joined by a flexible link 1 such as a band fixed by any suitable means in the vicinity of the opening O of the bags and substantially parallel to this opening, as can be seen in FIG. 2.
- a flexible link 1 such as a band fixed by any suitable means in the vicinity of the opening O of the bags and substantially parallel to this opening, as can be seen in FIG. 2.
- R a station for filling these bags
- 2 a station for sealing the bags after they have been filled .
- This closing station 2 essentially comprises an enclosure 3 which is generally connected to a vacuum source (not shown) and which contains heated elements or bars 4, in a variable number, actuated vertically by any appropriate means (not shown), and between which the S bags must pass after filling in order to be heat sealed.
- a knife is provided schematically identified at 5, and beyond this knife is provided a drum 6 allowing the recovery of the cut bag falls, as will be explained in detail further on how it works.
- a drum 6 any other recovery system, such as a suction system for example, could be used without departing from the scope of the invention.
- a means of transport such as for example a conveyor 7 ensuring the evacuation of the filled and heat-sealed bags S and which must for example undergo heat shrinkage.
- Means such as for example rollers 8, or equivalent means, are provided at the inlet and / or at the outlet of the enclosure 3 to exert tension on the link or ribbon 1 connecting the bags S in order to ensure the perfect parallel superposition of the edges of the opening O of the bags when these are between the elements 4 of the press ensuring the heat sealing.
- the bags connected to each other may be in the form of a roll supplying the loading station R.
- the bags S are not tensioned by the ribbon or link 1 so as to allow the bags to open and consequently the loading of products to be packaged, as shown by the arrows F in FIG. 2.
- line or lines of bags S can rest on, for example, an endless belt or belt conveyor (not shown).
- the bags S are transferred to the vacuum enclosure 2. But it is important to observe here that traction is exerted on the link or ribbon 1 so as to make the edges of the opening O of the bags S to facilitate their watertight closing by welding of said edges which will be flattened and parallel due to the traction carried out on the link 1 by the rollers 8 or any other suitable means.
- the knife 5 cuts between the welding line 10 and the link or ribbon 1, while at the outlet of the enclosure 3, the scraps 12 cut by the knife 5 and all connected by the ribbon 1 are automatically wrapped around the drum 6.
- the bags S filled with a product P under vacuum they are conveyed, as seen in 13, by the conveyor 7 to for example a station ensuring the heat shrinkage of the bags to finally give a product illustrated schematically in 14 in figure 2.
- An automatic packaging method and machine have therefore been produced according to the invention allowing, thanks to the link connecting the bags, to obtain correct and automatic positioning of these bags during the various packaging operations, and making it possible to eliminate manual interventions and guarantee a tight and clean closure of the bags to finally give the packaged products a beautiful appearance.
- the means of tensioning the link connecting the bags and providing the flattening of their opening can be other than rollers and, in the case of rollers, can be driven, for example at different speeds, to the using any training source.
- the material of the link or ribbon and its attachment to the bags can be any.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Abstract
Description
La présente invention a essentiellement pour objet un procédé de conditionnement automatique de produits quelconques, tels que par exemple des denrées alimentaires, dans des sacs souples.The present invention essentially relates to a process for the automatic packaging of any products, such as for example foodstuffs, in flexible bags.
Elle vise également une machine permettant l'exécution de ce procédé.It also relates to a machine allowing the execution of this process.
On a déjà proposé des procédés et des machines réalisant successivement le transport, l'ouverture, le remplissage et la fermeture étanche de sacs en matière plastique destinés à contenir des denrées alimentaires quelconques et devant être présentées à la vente par exemple.Methods and machines have already been proposed successively carrying out the transport, opening, filling and sealing of plastic bags intended to contain any foodstuffs and to be presented for sale, for example.
Il est également connu d'utiliser dans ces procédés et ces machines une chaîne des sacs qui sont initialement reliés les uns aux autres, voir document US-A-3.751.875 sur lequel se fondent les préambules des revendications indépendantes.It is also known to use in these processes and these machines a chain of bags which are initially connected to each other, see document US-A-3,751,875 on which the preambles of the independent claims are based.
Toutefois, il y a souvent des problèmes au niveau du poste de fermeture des sacs, lequel poste est généralement constitué par une enceinte permettant de faire le vide dans les sacs et contenant une presse à deux éléments chauffés entre lesquels doivent passer les sacs; En effet, à ce niveau, les bords de l'ouverture de chaque sac doivent être parfaitement superposés et parallèles avant de réaliser le thermoscellage, et cela nécessite bien souvent une intervention manuelle qui prend évidemment du temps.However, there are often problems at the bag closing station, which station is generally constituted by an enclosure making it possible to empty the bags and containing a press with two heated elements between which the bags must pass; Indeed, at this level, the edges of the opening of each bag must be perfectly superimposed and parallel before carrying out the heat sealing, and this very often requires manual intervention which obviously takes time.
En outre, les sacs découpés après le thermoscellage engendrent des chutes de matière qui sont difficiles à contrôler et à récupérer.In addition, the bags cut after heat sealing cause material to fall which is difficult to control and recover.
Aussi, la présente invention a pour but de résoudre les problèmes ci-dessus en proposant un procédé et une machine automatique de conditionnement de produits dans des sacs, qui permettent un positionnement automatique et parfait des sacs notamment au niveau du poste de thermoscellage, ainsi qu'une récupération aisée et automatique des chutes de sacs découpées.Also, the present invention aims to solve the above problems by providing a method and an automatic machine for packaging products in bags, which allow automatic and perfect positioning of the bags, particularly at the level from the heat-sealing station, as well as easy and automatic recovery of cut bag scraps.
A cet effet, l'invention réalise un procédé de conditionnement automatique de produits quelconques, tels que par exemple des denrées alimentaires, dans une chaîne de sacs souples réunis les uns aux autres ce procédé consistant essentiellement à faire passer les sacs successivement à un poste de remplissage et à un poste de fermeture étanche des sacs, et étant caractérisé en ce qu'on réunit les sacs par au moins un lien flexible qui s'étend au voisinage de et sensiblement parallèlement à l'ouverture des sacs, et en ce qu'on effectue avec le lien flexible une traction sur les sacs avant thermoscellage dans le poste de fermeture de façon à rendre parfaitement aplatis et parallèles les bords de l'ouverture des sacs précédemment remplis pour faciliter leur fermeture étanche suivant une ligne de soudage qui est légèrement en retrait du lien, et après la fermeture étanche des sacs, on réalise une découpe entre la ligne de soudage et le lien, puis on récupère par enroulement les chutes précédemment découpées et toutes reliées par le lien.To this end, the invention achieves an automatic packaging process for any products, such as for example foodstuffs, in a chain of flexible bags joined together, this process essentially consisting in passing the bags successively to a post of filling and at a sealed bag closing station, and being characterized in that the bags are joined by at least one flexible link which extends in the vicinity of and substantially parallel to the opening of the bags, and in that with the flexible link, pulling is carried out on the bags before heat-sealing in the closure station so as to make the edges of the opening of the previously filled bags perfectly flat and parallel to facilitate their sealed closure along a welding line which is slightly in removal of the link, and after the bags have been sealed, a cut is made between the welding line and the link, then p ar winding the falls previously cut and all connected by the link.
La présente invention concerne encore une machine pour la mise en oeuvre du procédé répondant aux caractéristiques ci-dessus, cette machine comprenant un poste de remplissage de sacs réunis par un lien et un poste de fermeture étanche de ces sacs, ladite machine étant caractérisée par les caractéristiques de la revendication 2.The present invention also relates to a machine for implementing the method meeting the above characteristics, this machine comprising a station for filling bags joined by a link and a station for sealing these bags, said machine being characterized by Features of claim 2.
Les moyens de tension peuvent être constitués par un ou plusieurs galets ou par un ou plusieurs bras de tension.The tensioning means can be constituted by one or more rollers or by one or more tension arms.
D'autres caractéristiques et avantages de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés dans lesquels la figure 1 est une vue très schématique et en élévation d'une machine de conditionnement automatique de sacs souples selon cette invention.Other characteristics and advantages of the invention will appear more clearly in the detailed description which follows and refers to the attached drawings in which Figure 1 is a very schematic view in elevation of an automatic packaging machine for flexible bags according to this invention.
La figure 2 est une vue schématique et en plan de dessus de la machine montrée sur la figure 1.FIG. 2 is a schematic plan view from above of the machine shown in FIG. 1.
Suivant l'exemple de réalisation représenté, une machine conforme à cette invention permet le conditionnement de sacs S en matière plastique notamment, ces sacs étant tous réunis par un lien souple 1 tel qu'une bande fixée par tout moyen approprié au voisinage de l'ouverture O des sacs et sensiblement parallèlement à cette ouverture, comme on le voit bien sur la figure 2. On a montré en R un poste de remplissage de ces sacs et en 2 un poste de fermeture étanche des sacs après qu'ils aient été remplis.According to the embodiment shown, a machine according to this invention allows the packaging of plastic bags S in particular, these bags all being joined by a flexible link 1 such as a band fixed by any suitable means in the vicinity of the opening O of the bags and substantially parallel to this opening, as can be seen in FIG. 2. There is shown at R a station for filling these bags and at 2 a station for sealing the bags after they have been filled .
Ce poste de fermeture 2 comprend essentiellement une enceinte 3 qui est généralement reliée à une source de vide (non représentée) et qui contient des éléments ou barres chauffées 4, en un nombre variable, actionnables verticalement par tout moyen approprié (non représenté), et entre lesquelles doivent passer les sacs S après remplissage pour pouvoir être thermoscellés.This closing station 2 essentially comprises an enclosure 3 which is generally connected to a vacuum source (not shown) and which contains heated elements or bars 4, in a variable number, actuated vertically by any appropriate means (not shown), and between which the S bags must pass after filling in order to be heat sealed.
A la sortie de l'enceinte 3 ou dans cette enceinte, est prévu un couteau repéré schématiquement en 5, et au-delà de ce couteau est prévu un tambour 6 permettant la récupération des chutes de sacs découpées, comme on l'expliquera en détail plus loin à propos du fonctionnement. A la place du tambour 6, on pourrait utiliser tout autre système de récupération, tel qu'un système d'aspiration par exemple, sans sortir du cadre de l'invention.At the exit from the enclosure 3 or in this enclosure, a knife is provided schematically identified at 5, and beyond this knife is provided a
Egalement, à la sortie de l'enceinte 3 est prévu un moyen de transport, tel que par exemple un convoyeur 7 assurant l'évacuation des sacs S remplis et thermoscellés et devant subir par exemple un rétrécissement à la chaleur.Also, at the outlet of the enclosure 3 is provided a means of transport, such as for example a
Des moyens, tels que par exemple des galets 8, ou des moyens équivalents, sont prévus à l'entrée et/ou à la sortie de l'enceinte 3 pour exercer une tension sur le lien ou ruban 1 reliant les sacs S afin d'assurer la superposition parallèle parfaite des bords de l'ouverture O des sacs lorsque ceux-ci se trouvent entre les éléments 4 de la presse assurant le thermoscellage.Means, such as for
Mais, pour une compréhension de l'invention, on expliquera ci-après le fonctionnement de la machine qui vient d'être décrite.However, for an understanding of the invention, the operation of the machine which has just been described will be explained below.
On observera tout d'abord que les sacs S demeureront constamment reliés par le ruban 1 jusqu'à la sortie du poste de thermoscellage 2.It will first of all be observed that the bags S will remain constantly connected by the tape 1 until the exit from the heat-sealing station 2.
Initialement, et comme on le voit en T sur la figure 1, les sacs reliés les uns aux autres peuvent se présenter sous la forme d'un rouleau alimentant le poste de chargement R.Initially, and as seen in T in Figure 1, the bags connected to each other may be in the form of a roll supplying the loading station R.
Ici, les sacs S ne sont pas mis sous tension par le ruban ou lien 1 de façon à permettre l'ouverture des sacs et par conséquent le chargement en produits à conditionner, comme matérialisé par les flèches F sur la figure 2.Here, the bags S are not tensioned by the ribbon or link 1 so as to allow the bags to open and consequently the loading of products to be packaged, as shown by the arrows F in FIG. 2.
On observera ici que la ou les lignes de sacs S peuvent reposer sur par exemple un convoyeur à bande ou courroie sans fin (non représenté).It will be observed here that the line or lines of bags S can rest on, for example, an endless belt or belt conveyor (not shown).
Après chargement, les sacs S sont transférés à l'enceinte sous vide 2. Mais il est important d'observer ici qu'une traction est exercée sur le lien ou ruban 1 de façon à rendre sensiblement parallèles les bords de l'ouverture O des sacs S pour faciliter leur fermeture étanche par soudage desdits bords qui seront aplatis et parallèles en raison de la traction effectuée sur le lien 1 par les galets 8 ou tout autre moyen approprié.After loading, the bags S are transferred to the vacuum enclosure 2. But it is important to observe here that traction is exerted on the link or ribbon 1 so as to make the edges of the opening O of the bags S to facilitate their watertight closing by welding of said edges which will be flattened and parallel due to the traction carried out on the link 1 by the
On a montré schématiquement en 9 les bords parfaitement aplatis et parallèles de l'ouverture O des sacs S avant thermoscellage, et on a montré en 10 sur la figure 2 la ligne de soudage réalisée sur les sacs S précédemment remplis, cette ligne de soudage étant légèrement en retrait du ruban 1 maintenant la liaison entre les sacs S.We have shown schematically at 9 the perfectly flat and parallel edges of the opening O of the bags S before heat sealing, and we have shown at 10 in FIG. 2 the welding line produced on the bags S previously filled, this welding line being slightly set back from the ribbon 1 maintaining the connection between the bags S.
Après la fermeture étanche et sous vide des sacs S, le couteau 5 réalise une découpe entre la ligne de soudage 10 et le lien ou ruban 1, tandis qu'à la sortie de l'enceinte 3, les chutes 12 découpées par le couteau 5 et toutes reliées par le ruban 1 sont automatiquement enroulées autour du tambour 6.After the bags S are sealed and vacuum sealed, the knife 5 cuts between the
Quant aux sacs S remplis sous vide d'un produit P, ils sont acheminés, comme on le voit en 13, par le convoyeur 7 vers par exemple un poste assurant le rétrécissement à la chaleur des sacs pour finalement donner un produit illustré schématiquement en 14 sur la figure 2.As for the bags S filled with a product P under vacuum, they are conveyed, as seen in 13, by the
On a donc réalisé suivant l'invention un procédé et une machine de conditionnement automatique permettant grâce au lien reliant les sacs d'obtenir un positionnement correct et automatique de ces sacs lors des diverses opérations de conditionnement, et permettant de supprimer les interventions manuelles et de garantir une fermeture étanche et propre des sacs pour finalement conférer aux produits conditionnés un bel aspect de présentation.An automatic packaging method and machine have therefore been produced according to the invention allowing, thanks to the link connecting the bags, to obtain correct and automatic positioning of these bags during the various packaging operations, and making it possible to eliminate manual interventions and guarantee a tight and clean closure of the bags to finally give the packaged products a beautiful appearance.
Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple.Of course, the invention is in no way limited to the embodiment described and illustrated, which has been given only by way of example.
C'est ainsi que les moyens de tension du lien reliant les sacs et procurant l'aplatissement de leur ouverture peuvent être autres que des galets et, dans le cas de galets, peuvent être entraînés, par exemple à des vitesses différentes, à l'aide d'une source d'entrainement quelconque. De même, la matière du lien ou ruban et sa fixation sur les sacs peuvent être quelconques.Thus the means of tensioning the link connecting the bags and providing the flattening of their opening can be other than rollers and, in the case of rollers, can be driven, for example at different speeds, to the using any training source. Similarly, the material of the link or ribbon and its attachment to the bags can be any.
Claims (3)
- Method for the automatic conditioning of any products such for example as foodstuffs into a line of flexible bags united to each other, this method consisting essentially in passing the bags successively to a filling station and to a station for the fluid-tight closing of the bags and being characterized in that one unites the bags by at least one flexible tie which extends to the vicinity of and in substantially parallel relation to the opening of the bags and that one performs with the flexible tie a pull on the bags before heat sealing in the closing station so as to cause the edges of the opening of the previously filled bags to be perfectly flattened and parallel to facilitate their sealed closing along a welding line which is slightly set back from the tie and after the fluid-tight closing of the bags, one carries out a cut between the welding line and the tie and one then recovers by rolling up the offcuts previously severed and all connected by the tie.
- Machine for the automatic conditioning of any products such for example as foodstuffs into flexible bags united to each other, the machine comprising a station (R) for filling the bags (S) and a station (2) for fluid-tightly closing these bags, characterized in that the bags are united by at least one flexible tie which extends to the vicinity of and in substantially parallel relation to the opening of the bags and in that the machine comprises means (8) for tensioning the tie (1) disposed upstream and/or downstream of the said station (2) for sealed closing, a knife (5) disposed at the outlet of the station (2) for the sealed closing of the bags and downstream of the said closing station, a drum (6) for the automatic rolling up of the offcuts (12) severed by the knife (5) and united by the tie (1).
- Machine according to claim 2, characterized in that the aforesaid tensioning means (8) are constituted by one or several rollers or by one or several tensioning arms.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9009571 | 1990-07-26 | ||
| FR9009571A FR2665136B1 (en) | 1990-07-26 | 1990-07-26 | PROCESS FOR THE AUTOMATIC PACKAGING OF ANY PRODUCTS IN FLEXIBLE BAGS AND A MACHINE FOR CARRYING OUT SAID PROCESS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0468865A1 EP0468865A1 (en) | 1992-01-29 |
| EP0468865B1 true EP0468865B1 (en) | 1994-06-08 |
Family
ID=9399135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91402016A Expired - Lifetime EP0468865B1 (en) | 1990-07-26 | 1991-07-18 | Method for the automatic packaging of products in flexible bags and machine for executing the method |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0468865B1 (en) |
| AT (1) | ATE106822T1 (en) |
| AU (1) | AU652166B2 (en) |
| DE (1) | DE69102361D1 (en) |
| FR (1) | FR2665136B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148581A (en) * | 2021-12-21 | 2022-03-08 | 苏州策林智能科技有限公司 | Product packaging equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB681096A (en) * | 1948-07-13 | 1952-10-15 | Clarence Wedekind Vogt | Improvements in or relating to bag arrangements |
| US3751875A (en) * | 1971-09-09 | 1973-08-14 | H Membrino | Apparatus for filling, sealing and dispensing bags |
-
1990
- 1990-07-26 FR FR9009571A patent/FR2665136B1/en not_active Expired - Fee Related
-
1991
- 1991-07-18 DE DE69102361T patent/DE69102361D1/en not_active Expired - Lifetime
- 1991-07-18 EP EP91402016A patent/EP0468865B1/en not_active Expired - Lifetime
- 1991-07-18 AT AT91402016T patent/ATE106822T1/en not_active IP Right Cessation
- 1991-07-23 AU AU81287/91A patent/AU652166B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR2665136A1 (en) | 1992-01-31 |
| AU652166B2 (en) | 1994-08-18 |
| EP0468865A1 (en) | 1992-01-29 |
| ATE106822T1 (en) | 1994-06-15 |
| AU8128791A (en) | 1992-01-30 |
| FR2665136B1 (en) | 1992-11-20 |
| DE69102361D1 (en) | 1994-07-14 |
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