EP0114157B1 - Device for the continuous and automatic opening and emptying of bags - Google Patents
Device for the continuous and automatic opening and emptying of bags Download PDFInfo
- Publication number
- EP0114157B1 EP0114157B1 EP84870002A EP84870002A EP0114157B1 EP 0114157 B1 EP0114157 B1 EP 0114157B1 EP 84870002 A EP84870002 A EP 84870002A EP 84870002 A EP84870002 A EP 84870002A EP 0114157 B1 EP0114157 B1 EP 0114157B1
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- EP
- European Patent Office
- Prior art keywords
- bags
- fact
- accordance
- removal
- bag
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- 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.)
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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
- B65B69/00—Unpacking of articles or materials, not otherwise provided for
- B65B69/0008—Opening and emptying bags
Definitions
- the present invention relates to a continuous automatic opening and emptying device for bags, according to the preamble of claim 1 (known from document FR-A-2416182).
- This device is simple, reliable and universal, that is to say that it can be used for any product as soon as the bags can be opened by a rotary cutting means.
- One of the aims of the invention is to ensure automatic and continuous operation by a device, machine of reduced size, preferably closed, while arriving at a higher rate while the work is less demanding. In fact, better and safer working conditions are obtained, which allows the device to treat harmful and dangerous products without entraining the usual residual dust.
- the device can process all types of old and new bags made of paper, plastic, jute, etc ...; it can process bags filled with very diverse materials such as powdered products, grains, granules, fibers, compacted or not, etc. It is however, due to the high safety of the work it brings, intended more specifically to the treatment of harmful, smelly, toxic, etc. products. Furthermore, the device by its system for cutting and opening the bag wide, it will be perfectly emptied.
- a machine for opening and emptying bags mechanically which may contain a toxic product comprises a conveyor intended to bring each bag to a product hopper, cutting means capable of cutting three sides of the bag during the advancement of the latter and a complex gripping assembly capable of grasping the cut bag, moving it, emptying it into the hopper and bring to a discharge location
- the machine can be equipped with means suitable for automatically controlling the conveyor, the cutting means and the gripping assembly according to a predetermined cycle of operations.
- the product In certain types of known devices, the product must be separated from the fragments originating from the cutting of the bags by a sieving operation. This results in a significant dust problem and despite everything there are generally small fragments of the bag in the product.
- the present invention overcomes these drawbacks by providing a new system for removing empty bags, characterized in that it consists on the one hand of oscillating guide elements and on the other hand of a set of cylinders preferably having the shape of small wheels.
- the device further comprises a detection system which generates in an oscillating movement the upward movement of the guide elements.
- the complete device of the present invention comprises a modular box or not and placed on a chassis, a system for moving the bags, generally an endless conveyor belt, which can be fitted laterally with a rim or lip in order to avoid overflowing of the products, a bag cutting system comprising one or more rotary cutting means normally allowing the opening on the three sides of the bags, generally on the front and laterally and the device for removing empty bags as described above.
- the cutting means are mounted on pivoting arms or on an additional chassis and they are brought back to the center by springs or even air, oil, etc. pistons.
- the device is finally provided with a means of evacuating the product leaving the cut bags.
- 1 shows a box with walls 1a, 1b, 1c, 1d, mounted on a frame 2 itself placed on legs 3; by 4 an endless conveyor belt rotating on rollers 5; by 6 Figures 1 and 2, and 6, Figures 3 and 4, a cutting installation comprising rotary cutting means 7, either Figures 1 and 2, mounted on pivoting arms 8, or, Figures 3 and 4, arms with translational movement 8 ', acting as each other under the action of springs or air or oil pistons (not shown); by 9 oscillating guide elements and by 10 wheel-shaped cylinders, these elements 9 and the set of cylinders 10 forming the empty bag removal system.
- the empty bags evacuation zone par 12 a funnel provided for the exit of the products contained in the bags.
- the discharge zone 11 for the bags includes an archimedean screw 13, while on the other hand, according to the embodiment of FIGS. 3 and 4, a funnel is provided.
- the rotary cutting means 7 execute an oscillating movement around two axes of rotation according to the arrows 15 and 16, whereas in FIGS. 3 and 4, they execute a rectilinear reciprocating movement according to the arrows 17 and 18.
- the device is also completed by an electrical or pneumatic drive system (not shown). It is also provided (not shown) that the device is equipped with an electrical cabinet which provides automaticity, security, as well as the necessary interlocks.
- the device can also be supplemented with anti-dust equipment, a filter, etc.
- the product transporter can be completed by a crusher, a shredder, an archival screw; transport can be mechanical or pneumatic; Similarly, the transport of the cut bags can be completed with an archimedes screw, a press, a crusher, etc.
- the bags being introduced linearly and at a regular rate thanks to a fixed and wide entry airlock, are thus held until they are opened by the cutting system 6, 6 'including the rotary cutting means 7 are located, upstream, before the bags pass, in a directional alignment along the longitudinal axis of the device.
- the rotary cutting means 7 cut the bags 20, one of which is shown diagrammatically by 19 in the different FIGS. 1 to 4, the bags moving in the direction of advance of the conveyor belt 4, according to the arrows 21.
- each bag successively exerts pressure against the first cutting means, then the second.
- the detection system causes, in an oscillating movement, according to arrow 22, the upward displacement of the guide elements 9, so that the skin of the bags (cut and empty bags) is detached and separated of the product it contained, and taken over the product by the cylinders which entrain the bodies of the bags towards the evacuation part of the empty bags, while the product which they contained falls into the funnel 12.
- An automatic shutdown system (not shown) is provided for cases where the bags are not being fed satisfactorily or when the cutting is poorly executed; immediate stopping having the advantage of stopping the further introduction of the bags, which could otherwise damage the various elements of the device in the event of a malfunction.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
Abstract
Description
La présente invention est relative à un dispositif d'ouverture et de vidage automatique en continu, des sacs, selon le préambule de la revendication 1 (connu du document FR-A-2416182). Ce dispositif est simple, fiable et universel, c'est-à-dire qu'il peut être utilisé pour n'importe quel produit dès lors que l'ouverture des sacs puisse se faire par un moyen rotatif de découpage.The present invention relates to a continuous automatic opening and emptying device for bags, according to the preamble of claim 1 (known from document FR-A-2416182). This device is simple, reliable and universal, that is to say that it can be used for any product as soon as the bags can be opened by a rotary cutting means.
Un des buts de l'invention est d'assurer un fonctionnement automatique et en continu par un dispositif, machine de gabarit réduit, de préférence fermé, tout en arrivant à une cadence plus élevée alors que le travail est moins exigeant. En effet, on obtient des conditions de travail meilleures et plus sécurisantes, ce qui permet au dispositif de traiter des produits nocifs et dangereux sans entraîner les habituelles poussières résiduelles.One of the aims of the invention is to ensure automatic and continuous operation by a device, machine of reduced size, preferably closed, while arriving at a higher rate while the work is less demanding. In fact, better and safer working conditions are obtained, which allows the device to treat harmful and dangerous products without entraining the usual residual dust.
Le dispositif peut traiter tous les types de sacs anciens et nouveaux en papier, plastique, jute, etc...; il peut traiter des sacs remplis de matières très diverses telles que produits en poudre, en grains, des granulés, des fibres compactées ou non, etc... Il est cependant, en raison de la haute sécurité du travail qu'il amène, destiné plus spécialement au traitement de produits nocifs, malodorants, toxiques, etc.. De plus, le dispositif par son système de découpage et d'ouverture large du sac, celui-ci sera parfaitement vidé.The device can process all types of old and new bags made of paper, plastic, jute, etc ...; it can process bags filled with very diverse materials such as powdered products, grains, granules, fibers, compacted or not, etc. It is however, due to the high safety of the work it brings, intended more specifically to the treatment of harmful, smelly, toxic, etc. products. Furthermore, the device by its system for cutting and opening the bag wide, it will be perfectly emptied.
Il existe déjà des dispositifs ouvre-sacs comportant des installations de découpage tel que décrit dans le document FR-A-2416182 où une machine d'ouverture et de vidage mécaniques de sacs pouvant contenir un produit toxique comporte un transporteur destiné à amener chaque sac vers une trémie à produit, des moyens de coupe aptes à découper trois côtés de sac pendant l'avancement de ce dernier et un ensemble de préhension complexe apte à saisir le sac découpé, à le déplacer, à le vider dans la trémie et à l'amener vers un emplacement d'évacuation, la machine pouvant être équipée de moyens propres à commander automatiquement le transporteur, les moyens de coupe et l'ensemble de préhension suivant un cycle prédéterminé d'opérations.There are already bag opener devices comprising cutting installations as described in document FR-A-2416182 where a machine for opening and emptying bags mechanically which may contain a toxic product comprises a conveyor intended to bring each bag to a product hopper, cutting means capable of cutting three sides of the bag during the advancement of the latter and a complex gripping assembly capable of grasping the cut bag, moving it, emptying it into the hopper and bring to a discharge location, the machine can be equipped with means suitable for automatically controlling the conveyor, the cutting means and the gripping assembly according to a predetermined cycle of operations.
Dans certains types de dispositifs connus, le produit doit être séparé des fragments provenant du découpage des sacs par une opération de tamisage. Il en résulte un important problème de poussière et malgré tout il reste généralement de petits fragments du sac dans le produit.In certain types of known devices, the product must be separated from the fragments originating from the cutting of the bags by a sieving operation. This results in a significant dust problem and despite everything there are generally small fragments of the bag in the product.
Dans d'autres types de dispositifs connus, on prévoit d'attraper les sacs par des crochets ou des chevilles genre pic, mais l'on doit généralement, pour les saisir, les percer ou les tenir en plus d'un endroit et par exemple en deux endroits ou des deux côtés; cela entraîne la mise en oeuvre de moyens multiples et mécaniquement complexes si l'on veut assurer un fonctionnement correct dans des conditions minimales de sécurité; et cela particulièrement si l'on désire éviter que les sacs ne se déchirent trop vite ou encore que les sacs ne se détachent.In other types of known devices, provision is made for catching the bags by hooks or pegs of the pic type, but in order to grasp them, they must generally be pierced or held in more than one place, for example in two places or on both sides; this involves the implementation of multiple and mechanically complex means if one wishes to ensure correct operation under minimum safety conditions; This is particularly true if you want to prevent the bags from tearing too quickly or the bags from coming off.
La présente invention remédie à ces inconvénients en prévoyant un nouveau système d'enlèvement des sacs vides caractérisé en ce qu'il est constitué d'une part d'éléments de guidage oscillants et d'autre part d'un jeu de cylindres de préférence ayant la forme de petites roues. Le dispositif comporte en outre un système de détection qui engendre dans un mouvement d'oscillation le déplacement vers le haut des éléments de guidage.The present invention overcomes these drawbacks by providing a new system for removing empty bags, characterized in that it consists on the one hand of oscillating guide elements and on the other hand of a set of cylinders preferably having the shape of small wheels. The device further comprises a detection system which generates in an oscillating movement the upward movement of the guide elements.
Le dispositif complet de la présente invention comporte un caisson modulaire ou non et placé sur un châssis, un système de déplacement des sacs, généralement une bande transporteuse sans fin, pouvant être équipée latéralement d'un rebord ou lèvre afin d'éviter les débordements des produits, un système de découpage des sacs comportant un ou plusieurs moyens rotatifs de découpage permettant normalement l'ouverture sur les trois côtés des sacs, généralement sur le devant et latéralement et le dispositif d'enlèvement des sacs vides comme décrit ci-dessus.The complete device of the present invention comprises a modular box or not and placed on a chassis, a system for moving the bags, generally an endless conveyor belt, which can be fitted laterally with a rim or lip in order to avoid overflowing of the products, a bag cutting system comprising one or more rotary cutting means normally allowing the opening on the three sides of the bags, generally on the front and laterally and the device for removing empty bags as described above.
De préférence, les moyens de découpage sont montés sur des bras pivotants ou sur un châssis supplémentaire et ils sont ramenés vers le centre par des ressorts ou encore des pistons à air, à huile, etc...Preferably, the cutting means are mounted on pivoting arms or on an additional chassis and they are brought back to the center by springs or even air, oil, etc. pistons.
L'ensemble des systèmes fonctionne éléctri- quement ou pneumatiquement. Le dispositif est pourvu finalement d'un moyen d'évacuation du produit sortant des sacs découpés.All systems work electrically or pneumatically. The device is finally provided with a means of evacuating the product leaving the cut bags.
Afin de mieux comprendre l'invention, on la décrit maintenant de manière exemplative et non limitative par rapport à un dessin qui représente: à la figure 1, une vue transversale, côté latéral du caisson exclu, dans le sens de la longueur, dans une forme de réalisation d'un dispositif conforme à l'invention;
- à la figure 2, la même vue du même dispositif qu'à la figure 1 mais en coupe horizontale selon la ligne I/I de la figure 1, et donc côté supérieur du caisson exclu;
- à la figure 3, une vue transversale du même dispositif qu'à la figure 1, côté latéral du caisson exclu, mais en variante partielle de réalisation; à la figure 4, la même vue du même dispositif qu'à la figure 3, mais en coupe horizontale selon la ligne II/II de la figure 3, et donc côté supérieur du caisson exclu.
- in Figure 2, the same view of the same device as in Figure 1 but in horizontal section along the line I / I of Figure 1, and therefore the upper side of the box excluded;
- in FIG. 3, a transverse view of the same device as in FIG. 1, lateral side of the box excluded, but in a partial variant of embodiment; in Figure 4, the same view of the same device as in Figure 3, but in horizontal section along the line II / II of Figure 3, and therefore the upper side of the box excluded.
Dans ces différentes figures on a représenté par 1 un caisson à parois 1 a, 1 b, 1 c, 1 d, monté sur un châssis 2 lui-même posé sur des pieds 3; par 4 une bande transporteuse sans fin tournant sur des rouleaux 5; par 6 figures 1 et 2, et 6, figures 3 et 4, une installation de découpage comportant des moyens rotatifs 7 de découpage, soit figures 1 et 2, montés sur des bras pivotants 8, ou encore, figures 3 et 4, des bras à mouvement translatoire 8', agissant les uns comme les autres sous l'action de ressorts ou pistons à air ou à huile (non représentés); par 9 des éléments de guidage oscillants et par 10 des cylindres en forme de roue, ces éléments 9 et le jeu de cylindres 10 formant le système d'enlèvement des sacs vides. Par 11 on a représenté la zone d'évacuation des sacs vides; par 12 un entonnoir prévu pour la sortie des produits contenus dans les sacs.In these different figures, 1 shows a box with walls 1a, 1b, 1c, 1d, mounted on a
Selon la forme de réalisation représentée aux figures 1 et 2, la zone d'évacuation 11 des sacs, comporte une vis d'archimède 13, alors que par contre, selon la forme de réalisation des figures 3 et 4, on a prévu un entonnoir d'évacuation 14.According to the embodiment shown in FIGS. 1 and 2, the
A la figure 1, les moyens rotatifs de découpage 7 exécutent un mouvement oscillant autour de deux axes de rotation selon les flèches 15 et 16, alors qu'aux figures 3 et 4, ils exécutent un mouvement rectiligne de va-et-vient selon les flèches 17 et 18.In FIG. 1, the rotary cutting means 7 execute an oscillating movement around two axes of rotation according to the
Comme il est souhaitable que l'on ne doive pas arrêter la bande transporteuse et donc qu'elle travaille en continu, de même, on prévoit une rotation continue des cylindres.As it is desirable that one does not have to stop the conveyor belt and therefore that it works continuously, likewise, provision is made for a continuous rotation of the cylinders.
Le dispositif se complète encore par un système (non représenté) d'entraînement électrique ou pneumatique. On prévoit également (non représenté) que le dispositif est équipé d'une armoire électrique qui assure l'automaticité, la sécurité, ainsi que les verrouillages nécessaires.The device is also completed by an electrical or pneumatic drive system (not shown). It is also provided (not shown) that the device is equipped with an electrical cabinet which provides automaticity, security, as well as the necessary interlocks.
Le dispositif peut encore être complété d'un équipement anti-poussière, d'un filtre, etc... On peut prévoir d'installer le dispositif dans une cabine de travail ventilée et/ou une cabine de dépoussiérage.The device can also be supplemented with anti-dust equipment, a filter, etc. We can plan to install the device in a ventilated working cabin and / or a dusting cabin.
Le transporteur de produits peut être complété par un concasseur, un défibreur, une vis d'archi- mède; le transport peut être mécanique ou pneumatique; de même, le transport des sacs découpés peut être complété par une vis d'archimède, une presse, un broyeur, etc...The product transporter can be completed by a crusher, a shredder, an archival screw; transport can be mechanical or pneumatic; Similarly, the transport of the cut bags can be completed with an archimedes screw, a press, a crusher, etc.
On va maintenant donner ci-après un exemple de fonctionnement d'un dispositif conforme à l'invention. Les sacs remplis et fermés sont amenés sur la bande transporteuse 4 qui les entraîne dans le caisson 1, face avant D. Ces sacs peuvent dans le cas du dispositif selon l'invention, être introduits quasi directement les uns après les autres. On peut cependant prévoir, afin de bien maîtriser l'introduction, un système à lumière rouge et verte; en cas d'introduction automatique, un verrouillage électrique peut être prévu.We will now give below an example of operation of a device according to the invention. The filled and closed bags are brought to the
Les sacs étant introduits de manière linéaire et à une cadence régulière grâce à un sas d'entrée fixe et large, sont maintenus ainsi jusqu'à ce qu'ils soient ouverts par le système de découpage 6, 6' dont les moyens rotatifs de découpage 7 se trouvent, en amont, avant le passage des sacs, dans un alignement directionnel selon l'axe longitudinal du dispositif.The bags being introduced linearly and at a regular rate thanks to a fixed and wide entry airlock, are thus held until they are opened by the
Sous l'action d'une pression réglable avant que le dispositif n'entre en action, les moyens rotatifs de découpage 7 sont continuellement ramenés vers une position centrale.Under the action of an adjustable pressure before the device comes into action, the rotary cutting means 7 are continuously brought back to a central position.
Les moyens rotatifs de découpage 7 assurent un découpage 20 des sacs dont un est représenté schématiquement par 19 aux différentes figures 1 à 4, les sacs se déplaçant dans le sens d'avancement de la bande transporteuse 4, selon les flèches 21.The rotary cutting means 7 cut the
Par la disposition prévue des moyens rotatifs de découpage 7 à l'introduction, chaque sac vient successivement exercer une pression contre le premier moyen de découpage, puis le second.By the provision provided for the rotary cutting means 7 upon introduction, each bag successively exerts pressure against the first cutting means, then the second.
Après que les sacs ont été découpés, ils sont ensuite amenés, de manière continue, contre le système à éléments de guidage 9 qui, au moment du premier choc, se trouve au plus bas. Le système de détection (non représenté) entraîne, dans un mouvement d'oscillation, selon la flèche 22, le déplacement vers le haut des éléments de guidage 9, de sorte que la dépouille des sacs (sacs découpés et vides) est détachée et séparée du produit qu'elle contenait, et emmenée par dessus le produit par les cylindres qui entraînent les dépouilles des sacs vers la partie d'évacuation des sacs vides, alors que le produit qu'ils contenaient tombe dans l'entonnoir 12.After the bags have been cut, they are then brought continuously against the guide element system 9 which, at the time of the first impact, is at the bottom. The detection system (not shown) causes, in an oscillating movement, according to
Un système d'arrêt automatique (non représenté) est prévu pour les cas où l'entraînement des sacs ne se fait pas de manière satisfaisante ou encore lorsque le découpage serait mal exécuté; l'arrêt immédiat ayant l'avantage d'arrêter la poursuite de l'introduction des sacs, ce qui risquerait dans le cas contraire, d'endommager les différents éléments du dispositif en cas de mauvais fonctionnement.An automatic shutdown system (not shown) is provided for cases where the bags are not being fed satisfactorily or when the cutting is poorly executed; immediate stopping having the advantage of stopping the further introduction of the bags, which could otherwise damage the various elements of the device in the event of a malfunction.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84870002T ATE31272T1 (en) | 1983-01-18 | 1984-01-06 | DEVICE FOR THE CONTINUOUS AND AUTOMATIC OPENING AND EMPTYING OF BAGS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE209910 | 1983-01-18 | ||
BE0/209910A BE895629A (en) | 1983-01-18 | 1983-01-18 | Opening and emptying mechanism for bags with noxious contents - included conveyor in enclosure with rotary cutters, bag disposal members and product discharge |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0114157A2 EP0114157A2 (en) | 1984-07-25 |
EP0114157A3 EP0114157A3 (en) | 1984-08-08 |
EP0114157B1 true EP0114157B1 (en) | 1987-12-09 |
Family
ID=3843590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84870002A Expired EP0114157B1 (en) | 1983-01-18 | 1984-01-06 | Device for the continuous and automatic opening and emptying of bags |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0114157B1 (en) |
AT (1) | ATE31272T1 (en) |
DE (1) | DE3467998D1 (en) |
ES (1) | ES528970A0 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8197174B1 (en) | 2011-06-01 | 2012-06-12 | Luxme Holding Inc. | Automatic bag slitter, and method of use thereof |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2416182A1 (en) * | 1978-02-06 | 1979-08-31 | Colinet Const Mec | MECHANICAL OPENING AND EMPTYING MACHINE FOR BAGS MAY CONTAIN A TOXIC PRODUCT |
US4278383A (en) * | 1978-10-18 | 1981-07-14 | Whirl-Air-Flow Corporation | Bag opening and emptying apparatus |
GB2092980B (en) * | 1981-02-14 | 1984-07-04 | Jks Materials Handling Ltd | Bag opening machine |
-
1984
- 1984-01-06 DE DE8484870002T patent/DE3467998D1/en not_active Expired
- 1984-01-06 EP EP84870002A patent/EP0114157B1/en not_active Expired
- 1984-01-06 AT AT84870002T patent/ATE31272T1/en not_active IP Right Cessation
- 1984-01-18 ES ES528970A patent/ES528970A0/en active Granted
Also Published As
Publication number | Publication date |
---|---|
ATE31272T1 (en) | 1987-12-15 |
ES8502051A1 (en) | 1984-12-16 |
DE3467998D1 (en) | 1988-01-21 |
EP0114157A3 (en) | 1984-08-08 |
EP0114157A2 (en) | 1984-07-25 |
ES528970A0 (en) | 1984-12-16 |
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