EP0085399B1 - Procédé et appareil pour introduire automatiquement des sacs parallélépipédiques - Google Patents

Procédé et appareil pour introduire automatiquement des sacs parallélépipédiques Download PDF

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Publication number
EP0085399B1
EP0085399B1 EP83100743A EP83100743A EP0085399B1 EP 0085399 B1 EP0085399 B1 EP 0085399B1 EP 83100743 A EP83100743 A EP 83100743A EP 83100743 A EP83100743 A EP 83100743A EP 0085399 B1 EP0085399 B1 EP 0085399B1
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EP
European Patent Office
Prior art keywords
bag
spreading device
clamps
spreading
box
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
Application number
EP83100743A
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German (de)
English (en)
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EP0085399A2 (fr
EP0085399A3 (en
Inventor
Siegfried Rewitzer
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Hoechst AG
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Hoechst AG
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Filing date
Publication date
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Publication of EP0085399A2 publication Critical patent/EP0085399A2/fr
Publication of EP0085399A3 publication Critical patent/EP0085399A3/de
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Publication of EP0085399B1 publication Critical patent/EP0085399B1/fr
Expired legal-status Critical Current

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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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/901—Rigid container
    • Y10S493/906—Rigid container having multilayer wall
    • Y10S493/907—Lined

Definitions

  • the invention relates to methods and devices for automatically inserting box-shaped sacks made of flexible packaging material into box-shaped large containers, according to the preamble of claims 1 and 4 (known from US-A-4 083 293).
  • Box-shaped containers are understood to mean those which have a packaging volume of more than 100, preferably more than 200 l.
  • a preferred area of use for such box-shaped large containers is e.g. given in the filing and pressing of thread cables, as described in DE-OS 27 36 316.
  • Thread cables can be stored and pre-pressed in the support containers equipped in this way.
  • the support container After the filled support container has been transported to a final press, the support container is pulled off and the cable material pre-pressed in the box-shaped bag is then subjected to a final compression in the form of a bale.
  • Large containers are also suitable for packaging cable tapes and fiber flakes, which must be lined with box-shaped bags made of flexible packaging material to protect the packed material against contamination on the container walls.
  • the method according to the invention is aimed at automatically inserting box-shaped sacks made of flexible packaging material into box-shaped large containers.
  • Corresponding clothing sets made of foils, jute fabrics or the like can be used as flexible packaging material.
  • plastic film which is laminated with a plastic film ribbon fabric, has proven itself, since such a material can be easily cut and sewn into box bags, glued or welded, but on the other hand has a much better tear resistance than usual Foils.
  • Trolleys (2) which are provided with at least four clamping points (3, 3 ', 4, 4'), are used for this purpose. These clamping points must be so far apart in pairs that two opposite side surfaces of a sack can be clamped in at the upper edge, while the other two side surfaces and the bottom of the sack remain folded together.
  • FIG. 1 shows such trolleys (2) equipped with box bags (1). The trolleys (2) are stored on a first magazine track (5) and brought up to a stop (6) with the help of a pushing device (not shown).
  • a pulling device (7) is then extended from the opposite side of the stop (6) and is equipped with at least two grippers (8, 8 ') which are approximately as far apart from one another as a side surface of the sack is wide.
  • the grippers (8, 8 ') can be actuated e.g. via a small servo motor with lever system or via a pneumatic drive (not shown).
  • the grippers (8, 8 ') can be raised above the edge of the closest side surface of the box sack (1) and then lowered to the edge of the sack, this side surface being clamped resiliently into the grippers (8, 8').
  • the pulling device (7) is then moved back with the grippers (8, 8 ').
  • the clamping connection of the clamping points (4, 4 ') of this side of the bag (1) is pulled out of the trolley (2) and the bag is shown as shown in FIGS. 1 to 3, at least spread out at its upper end.
  • FIG. 4 shows this insertion of the expanding device (9) in the folded state.
  • the spreading elements are expediently designed as a fourfold lever frame system which can be moved, for example, by a pneumatic drive system (11).
  • the spreading elements (10) are aligned along the four longitudinal edges of the box bag.
  • the sack edge is released from the clamping points (3, 3 ') on the trolley (2) and from the resilient grippers (8, 8') of the pulling device (7) by simply lowering the spreading device (9) further beyond the transfer point.
  • clamps (12) On the individual spreading elements (10) of the spreading device (9) there are clamps (12) which can be actuated in the vicinity of the edges of the bag and which are actuated by the spreading device at the latest after the stretched bag has been finally taken over.
  • the actuatable clamps (12) are arranged at such a height that they can hold the sack (1) stretched out on the expansion device (9) after tensioning and smoothing at its upper edge. After actuation of the clamps (12), the spreading device (9) can be retracted or folded up.
  • the tensioned state of the sack after it has been removed from the clamping points (3,3 ') and the resilient grippers (8, 8') of the pulling device (7) is shown in Fig. 5, while in Fig.
  • FIG. 6 the state of the sack and the spreader are shown in Fig. 6 Folding in of the expansion device (9) can be seen.
  • the spreading device can be moved into a box-shaped large container (14) with the aid of a movement device (13) and lowered there.
  • the pulling device (7) has been removed from the effective range of the expansion frame (9) and thus from the vicinity of the open jaw (1) by moving back with the aid of a movement device, not shown.
  • the position of the box bag (1) in the large container (14) can be fixed in various ways.
  • the inner wall of the large container (14) can have absorbent or adhesive points which allow the position of the sack to be fixed in the large container (14). Preferred embodiments of fixing the position of the box bag (1) in the large container will be described below. If the position of the sack is ensured by one of these measures, the clamps (12) can be released, the spreading device (9) folded in and the entire spreading device can be moved out of the large container (14). The large container is then equipped on its inner surfaces with the box bag (1) of the appropriate size.
  • FIGS. 7 to 12 show preferred embodiments of the method according to the invention and the device required therefor.
  • the upper edge of the box sack is cut into a length (a) and the foldable strips that are formed on the upper edge of the box sack (1) are connected to holding devices (17) on the upper edge of the large container.
  • the box sack (1) is held at the upper ends of the longitudinal edges by two clamps (12 ', 12 "), which are located near the sack edge.
  • a corresponding schematic representation in a top view is shown in FIG 12.
  • an actuatable knife (18) acts, which can be swung in and out by a movement device, not shown.
  • the expansion device (9) is usually folded in, the box bag (1) is then sunk into a large container with the help of the expansion device (9) and the expansion device (9 ) clamped in the container (14).
  • the clamps (12) or (12 ', 12 ") After loosening the clamps (12) or (12 ', 12 "), foldable edges of the box sack (1) are now available, which can be connected to the upper edge of the large container (14) Fixing the position of the box bag in the large container (14) results, for example, by gluing, acting by suction heads, attaching or clamping.
  • FIG. 7 shows a preferred form of fixing the position of the box bag 1 in the large container (14).
  • FIG. 8 shows a preferred form of fixing the position of the box bag 1 in the large container (14).
  • the upper edges of the sack (1) which have become freely movable as a result of the action of the knives (18), are pushed into the resilient holding devices (17) of the large container (14) with the aid of a transfer device (19).
  • the transfer device (19) consists of a pneumatic drive (20) whose piston rod sets lever systems (21) in motion, which change the position of sword-like plates (22).
  • FIG. 8 only two of the four lever systems and transfer swords (22) are shown.
  • the transfer takes place in such a way that when the pneumatic drive (20) is extended, the sword-like transfer devices (22) act on the upper edge of the bag (1).
  • the sword-like transfer devices (22) act on the upper edge of the bag (1).
  • the holding devices (17) of the large container (14) After loosening the clips (12) or (12 ', 12 "), it is possible to push the upper edge of the box bag (1), which has been cut into the edges, under the holding devices (17) of the large container (14).
  • the transfer of the box sack to the holding device (17) is carried out, the spreading device is retracted and is removed from the inside of the large container with the aid of the movement device (13) .
  • the large container is now ready for packaging, for example according to the method of DE-OS 27 36 316 can be used for storing thread cables.
  • Figure 10 shows a cross section along the line X..X of Figure 8. From this figure it can be seen that the expansion frame (10) fit into the edges of the box bag and the large container. It is thus possible to insert the box bag (1) into the large container (14) largely without wrinkles.
  • FIG. 1 An embodiment of the device required according to the invention is shown schematically in FIG.
  • the box bags (1) used are inserted into the brackets (3, 3 ', 4, 4') of the trolley (2). These trolleys (2) are guided on a first magazine track (5).
  • the brackets (3, 3 ') and (4,4') are each so far apart that at least one side of the box bag (1) can be clamped spread out between them.
  • the clamping points (3 and 3 ') consist of a fixed part (23, 23') which is rigidly connected to the linkage of the trolley (2) and a resilient part (24, 24 ') that allows the clamping of packaging material .
  • the clamping points (4,4 ') are designed in a similar way. In contrast to the fixed parts (23, 23 '), the fixed parts (25, 25') are, however, movable about the pivot points (38, 38,), the resilient parts (26, 26 ') correspond to the springs (24, 24') .
  • the trolleys (2) must be able to be easily moved back and forth on the magazine track (5), for example by means of rollers or sliders or the like.
  • the shape of the magazine track can be that of an open one Railroad.
  • the use of so-called C-rails for guiding the rollers of the carriage (2) has proven itself, for example.
  • the trolleys (2) are moved using a pushing device (27) which has a reciprocating drive (28).
  • the trolleys (2) are moved on the first magazine track (5) by actuating the drive (28) to which a ratchet (29) is connected, which can interact with the trolleys (2).
  • the pushing device (27) By actuating the pushing device (27), the trolleys (2) are transported on the magazine track (5) until the first carriage reaches the stop (6) of the first magazine track (5).
  • the now empty trolley (2) must be lifted onto a second magazine track (16).
  • This can be done, for example, by a lifting device (15) which can raise the end piece (30) of the magazine track (5) including the stop (6) up to the height of the second magazine track (16).
  • a pneumatic drive (31) in turn serves to drive the lifting device (15).
  • the empty trolley (2) then continues on the inclined magazine path (16) up to an actuatable stop (32) if there are no further empty trolleys (2) on the magazine path (16).
  • the connection between the first magazine path (5) and the second magazine path (16) is established by a movable path part (33) which can be pivoted about the axis (34) with the aid of a movement device (35).
  • the empty trolleys can continue to roll up to a stop (36) with the part (33) raised and the stop (32) open. After closing the stop (32), the web part (33) can then be lowered to the height of the first magazine web (5) and the trolleys (2) can be transferred from the movable web part (33) to the first magazine web (5).
  • the pulling device (7) is indicated opposite the stop (6) and can be advanced with its gripper arms (8, 8 ') with the aid of a device (not shown) up to the vicinity of the stop (6).
  • the grippers (8, 8 ') are actuated via an actuator (37).
  • the piston of the actuator (37) extends, the gripper arms (8, 8 ') swivel upwards and can thus be lifted over the first edge of the sack, which is located in the trolley, which is at the stop (6).
  • the edge of the bag is held resiliently by the grippers.
  • the gripped sack can be pulled out of the clamping points (4, 4') of the trolley without the clamping in the grippers (8, 8 ') changing .
  • the clamping points (4, 4 ') pivot about their axes (38, 38').
  • the grippers (8, 8 ') are also intended to hold a side of the clamped sack (1) in a spread out position, so it is necessary for the grippers (8, 8') to be almost as far apart as one side of the box sack is wide.
  • This spreading device (9) preferably consists of four spreading elements (10, 10 '), which can be moved via a drive system (11).
  • the spreading device (9) is fastened to a movement device (13) which allows the spreading device (9) to be moved at least in the vertical direction, but possibly also in the horizontal direction.
  • the spreading elements (10) are movably attached to the movement device (13) via axle bolts (39) and are movably connected on their lower side to spreading elements (10 ') which are movably connected to the piston of the drive (11).
  • the position of the expansion elements (10) can be changed by moving the drive (11).
  • the position of the expansion elements (10) in the retracted state can be seen from FIG. 4, in FIG. 5, with the piston rod of the drive (11) extended, the position of the expansion elements (10 and 10 ') in the tensioned state.
  • the four spreading elements (10) act along the edges of the box sack, as was shown in the schematic view in FIG. 10.
  • the expansion elements (10 and 10 ') have a circular cross section. However, the cross section of these elements does not have to be circular, for example in FIG. 12 a spreading element (10) is shown which was made from an angular profile.
  • Actuable clamps (12) are attached to the expansion elements (10). It is actuated via a lever system (40) by a drive (41), which was shown again in FIG. 11 as a pneumatic drive.
  • the edge of the sack is held in the vicinity of each edge of the sack (1) by two actuatable clamps (12 ', 12 ") which are connected to the lever system (40) via an angle piece (42) such an embodiment is shown as a detail in Figure 12.
  • the actuatable clamps (12) or (12 ', 12 ") are attached to the expansion elements (10) at such a height that they just clamp the upper edge of the bag (1) can.
  • knives (18) which can be actuated are provided on each expansion element (10) at the level of the upper edge of the clamped sack.
  • a precise arrangement is shown in FIG. 12; here the knife (18) acts directly through a slot in the expansion element (10).
  • the knives (18) are also connected to drives (44) via lever systems (43). These drives, via the lever systems, enable the knives (18) to be swung out and the upper edge of the sack to be cut into the edges at a predetermined length.
  • a transfer system (19) is also provided, which consists of a drive (20) and associated lever systems (21) as well as pivotable swords (22).
  • FIG. 11 shows only two of these lever systems and two of the swords which can act on the upper edge of the sack.
  • the swords (22) are elongated, ruler-like structures which allow the film material to be transferred under the holding devices (17) of the large container (14).
  • the large container (14) in FIG. 11 has holding devices in the form of long leaf springs (17) on its upper edge, which are capable of resiliently holding the cut edge of the box bag (1).
  • the large container (14) can be used for transferring or receiving the box bag (1) by a movement device, not shown, such as a roller conveyor or the like can be transferred to the exact location of the handover.
  • This exact location can e.g. be fixed by suitable stops or the like. It is not imperative that this transfer location, as shown in Figure 11, be within the actual device, i.e. between the rail track (5) and the pulling device (7) and below the spreading device (9). A handover location at another location would also be possible. It would only have to be ensured that the movement device (13) of the expansion device (9) can carry out corresponding movements to another transfer location.
  • the device shown and described has a number of drives. They have mostly been shown in the figures as pneumatically operated movement devices. Since they usually only have to perform a reciprocating movement, such a type of drive should be particularly simple and at least prone to failure. However, there is also the possibility of these movements, e.g. by electric servo motors e.g. to be carried out in connection with gears or tooth chains or the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Claims (8)

1. Procédé pour la mise en place de matériau d'emballage souple en forme de sacs (1) dans des récipients en forme de caisses (14), selon lequel le matériau d'emballage en forme de sacs est automatiquement repris d'un écarteur (9), tenu et mis en piace dans des récipients, caractérisé en ce que des sacs parallélépipédiques (1) sont mis en place dans de grands récipients (14), de plus de 100 de volume utile, dans un processus où le sac (1) est serré en au moins quatre points de pinçage (3, 3', 4, 4') sur un chariot (2), de manière que deux faces latérales opposées du sac soient etalées, tandis que les deux autres faces latérales et le fond du sac (1) restent pliés, le chariot (2), ainsi muni d'un sac, est entreposé sur une première voie de magasinage (5) et transporté par un pousseur (27) jusqu'à une butée (6), le côté étalé le plus proche du sac (1) est repris du chariot (2), par extension d'un dispositif de tirage (7) à partir de L'autre côté de la butée (6), à l'aide de préhenseurs commandés (8, 8') montés sur le dispositif de tirage (7), et le sac est étalé à son extrémité supérieure ouverte par le recul consécutif du dispositif de tirage (7), un écarteur à cadres (9) est abaissé à l'état replié dans le sac (1) ouvert, à tel point que, lors de l'extension consécutive de l'écarteur (9), le long des arêtes longitudinales du sac (1), le sac soit déplié complètement, le sac, (1) tendu ouvert, est détaché des points de pinçage restants (3, 3') du chariot (2) et des préhenseurs à ressort (8, 8'), par la poursuite de l'abaissement de l'écarteur (9) le bord supérieur du sac (1) est tenu par des attaches commandées (12), prévues sur l'écarteur (9), le chariot (2) vide est transporté par un élévateur (15) sur une deuxième voie de magasinage (16) qui permet le retour du chariot (2) sur la première voie de magasinage (5), l'écarteur (9) est replié, le sac (1), tenu par les attaches (12), est inséré dans un grand récipient (14) en forme de caisse, par déplacement de l'écarteur (9), et est appliqué à plat contre les parois du récipient par une nouvelle extension de l'écarteur (9), les attaches (12) sont ouvertes et le sac est transféré à des éléments de maintien (17) du récipient (14), avant le repliage de l'écarteur (9) et son retrait du récipient (14).
2. Procédé selon la revendication 1, caractérisé en ce que le sac (1), après avoir été repris par des attaches (12) ou des attaches (12', 12") à double effet de l'écarteur (9), est entaillé suffisamment, aux extrémités supérieures de ses arêtes, par des couteaux commandés (18), qu'il se forme des bords rabattables et, après insertion et extension du sac dans le grand récipient (14) et ouverture des attaches (12 ou 12', 12"), les bords rabattables du sac (1) sont transférés, à l'aide de dispositifs de transfert (19), à des éléments de maintien (17) sur les bords supérieurs du récipient (14).
3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le sac (1), après sa reprise par les attaches (12) de l'écarteur (9), est soulevé de la position de reprise, par déplacement de l'écarteur (9), les extrémités supérieures des arêtes sont ensuite entaillées à l'état tendu du sac (1), l'écarteur (9) est replié après cela puis inséré dans le grand récipient (14), transporté entre temps dans la zone d'action de l'écarteur (9).
4. Appareil pour la mise en place de matériau d'emballage souple en forme de sacs (1) dans des récipients en forme de caisses (14), à l'aide d'écarteurs (9), dans lequel le matériau d'emballage en forme de sacs est repris, tenu et mis en place dans des récipients par l'écarteur, travaillant automatiquement, caractérisé en ce qu'il comprend:
une ptemière voie de magasinage (5) pour guider des chariots (2), chaque chariot présentant au moins quatre points de pinçage (3, 3', 4, 4') qui sont suffisamment écartés mutuellement pour que deux côtés opposés du sac (1), de forme parallélépipédique, puissent être serrés à l'état étalé, tandis que les deux autres côtés et le fond peuvent rester pliés,
un pousseur (27) pour transporter les chariots (2) sur la première voie de magasinage (5) jusqu'à une butée (6), un élévateur (15) pour transporter les chariots (2), débarrassés des sacs qui y étaient suspendus, sur une deuxième voie de magasinage (16), sur laquelle les chariots vides (2) peuvent être ramenés sur la première voie de magasinage (5),
un dispositif de tirage (7), équipé de préhenseurs commandés (8,8'), qui est placé vis- à-vis des voies de magasinage (5,16), de l'autre côté de la butée (6), et qui est capable, par ses préhenseurs (8, 8'), de reprendre le côté étalé le plus proche d'un sac (1) du chariot (2) placé à la butée (6), de le tenir élastiquement et, par son recul, d'étaler le sac (1) à son bord supérieur,
un écarteur de sacs (9), fixé à un organe de déplacement (13) et possédant quatre cadres d'écartement articulés (10,10') qui s'étendent le long des arêtes longitudinales du sac (1) tendu ouvert et peuvent être étendus, par une commande (11) en elle-même connue, et repliés, de manière que le sac (1) soit suspendu à l'etat étendu à des attaches commandées (12), au moins une de ces attaches (12) étant fixée à chaque élément-cadre (10) de l'écarteur (9),
un dispositif de roulement capable d'amener de grands récipients (14) vides, d'un volume utile de plus de 100 I, à un endroit préfixé dans le rayon d'action de l'organe de déplacement (13) de l'écarteur (9) et, éventuellement, des dispositifs de transfert (19) capables de transférer le sac (1), étalé dans le grand récipient (14), à des éléments de maintien (17) du récipient (14).
5. Appareil selon la revendication 4, caractérisé en ce que, sur chaque élément-cadre (10) de l'ecarteur (9), deux attaches (12', 12") sont disposées de manière qu'elles puissent tenir, ensemble, deux côtés longitudinaux du sac (1) à proximité d'une arête commune du sac, et qu'un couteau (16) est disposé entre elles sur un organe de déplacement (43, 44), couteau qui est capable, à travers une découpe dans l'élément-cadre (10), d'entailler l'arête longitudinale du sac sur une longueur préfixée à son bord supérieur.
6. Appareil selon la revendication 5, caractérisé en ce que les grands récipients (14) présentent, à leur bord supérieur, un grand nombre d'éléments de maintien (17) qui sont capables de reprendre des dispositifs de transfert (19) et de retenir les bandes marginales rabattables formées par les couteaux (18) sur le sac (1).
7. Appareil selon la revendication 6, caractérisé en ce que les éléments de maintien (17) sur les bords supérieurs du grand récipient (14) ont la forme de ressorts-lames et les dispositifs de transfert (19), fixés à l'écarteur (9), présentent des bras semblables à des lames (22) qui peuvent pousser les bandes marginales rabattables du sac (1) sous les ressorts-lames du dispositif de maintien (17).
8. Appareil selon une des revendications 4 à 7, caractérisé en ce que l'organe de déplacement (13) est capable de soulever l'écarteur (9) au-dessus du point de mise en place du sac, dans une mesure suffisante pour qu'un grand récipient (14) puisse être amené en position verticale sous l'écarteur (9).
EP83100743A 1982-01-30 1983-01-27 Procédé et appareil pour introduire automatiquement des sacs parallélépipédiques Expired EP0085399B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3203071 1982-01-30
DE19823203071 DE3203071A1 (de) 1982-01-30 1982-01-30 Verfahren und vorrichtung zum automatischen einlegen kastenfoermiger saecke

Publications (3)

Publication Number Publication Date
EP0085399A2 EP0085399A2 (fr) 1983-08-10
EP0085399A3 EP0085399A3 (en) 1984-05-09
EP0085399B1 true EP0085399B1 (fr) 1986-09-03

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US (1) US4687462A (fr)
EP (1) EP0085399B1 (fr)
DE (2) DE3203071A1 (fr)

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KR960007218B1 (ko) * 1987-04-09 1996-05-29 슈바이쩌리쉐 알루미니움 아크리엔게젤샤프트 2실압축가스패킹 및 그 제조방법
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Also Published As

Publication number Publication date
EP0085399A2 (fr) 1983-08-10
EP0085399A3 (en) 1984-05-09
DE3365754D1 (en) 1986-10-09
DE3203071A1 (de) 1983-08-04
US4687462A (en) 1987-08-18

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