EP0140360B1 - Machine for automatically manufacturing double bags - Google Patents

Machine for automatically manufacturing double bags Download PDF

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Publication number
EP0140360B1
EP0140360B1 EP84113015A EP84113015A EP0140360B1 EP 0140360 B1 EP0140360 B1 EP 0140360B1 EP 84113015 A EP84113015 A EP 84113015A EP 84113015 A EP84113015 A EP 84113015A EP 0140360 B1 EP0140360 B1 EP 0140360B1
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EP
European Patent Office
Prior art keywords
sack
machine
double
support
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.)
Expired
Application number
EP84113015A
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German (de)
French (fr)
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EP0140360A3 (en
EP0140360A2 (en
Inventor
Franz X. Huemer
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Individual
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Individual
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Publication of EP0140360A3 publication Critical patent/EP0140360A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2170/00—Construction of flexible containers
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined
    • B31B2170/202—Construction of flexible containers having multi-layered walls, e.g. laminated or lined having liners applied in already made bags, e.g. including turning the bags inside out

Definitions

  • the present invention relates to a clothing machine for the automatic production of double sacks, each consisting of an outer sack consisting of a woven fabric, in particular a round woven fabric, and an inner sack consisting of a polyolefin, in particular polyethylene film, with at least one device for the cyclical cutting to length and further conveying of a tubular endless fabric web Formation of the outer bags, with a device for factual cutting to length and further conveying and, if necessary, welding a bottom seam of a tubular film web to form the inner bags and with a device for automatically inserting an inner bag into an outer bag to form a double bag and for further conveying it.
  • bags made of jute and polyolefin fabric are provided with an inner bag made of, for example, a tubular film made of polyethylene with a welded bottom seam.
  • devices are already known (DE-B-1 221 544; DE-B-1 155 588) which insert prefabricated inner bags into prefabricated outer bags, for which the latter are opened in a wedge shape by means of suction cups at the mouth, whereupon the inner bag is inserted into the inner bag - The wedge plate is inserted into the open outer bag.
  • the clothing machine according to the invention is intended to allow inner bags to be inserted into the outer bags, which can vary in length and width.
  • the device for automatically inserting an inner bag into an outer bag has a free-arm bracket for receiving an inner bag, a reciprocating carriage with a device for receiving and for spreading and pulling an outer bag over the console and one Storage table for the double bag includes below the plane of movement of the slide.
  • Such a machine is capable, in terms of cycles, of optimally preparing both the outer bags and the inner bags to be put together to assemble them, put together there to form a double bag and then further conveyed to the finished assembly, for example by means of a sewing stage and a stacking device.
  • This assembly is possible regardless of how long and wide the inner bag is with respect to the outer bag.
  • Such a machine is also independent of which sack material is used to produce the inner bags or outer bags, whereby it is entirely possible, for. B. to produce the bottom seam of an inner bag by welding a tubular film web.
  • the machine according to the invention is therefore very versatile in its applicability and allows an efficient and reliable operation. It is also advantageous here that the edges of the sack mouths of the outer sack and inner sack can be welded or glued without problems after the outer sack has been slipped over the inner sack.
  • the assembly machine illustrated in FIGS. 1 and 2 for the automatic production of double sacks 33, each consisting of an outer sack 11 consisting of a polyolefin round fabric and an inner sack 22 consisting of a polythene tubular film, comprises here in series a device 1 for cutting to length and Conveying an endless fabric web 31 produced on a circular loom to form the outer bags 11;
  • This further conveying takes place in a transverse direction by means of a transverse conveyor device 7, 15, 16 and a transverse transport table 18 to at least one sewing device 34, as will be explained in more detail below.
  • the device 1 for cutting and further conveying the outer bags 11 according to the cycle comprises, in a manner known per se, a so-called roll cutting machine 41, in which the fabric web 31 is continuously drawn off from the fabric web supply roll 31 'by means of motor-driven take-off rollers 42.
  • the continuously removed fabric web 31 then arrives at a clamping plate table 43 and from there to a transport table 1 ', which forms a delivery point for the individual outer bag 11, as will be explained in more detail.
  • a clamping ruler 44 interacts with the clamping plate table 43, the drive means 45 of which are actuated in a predetermined cycle in order to lower this clamping ruler 44 for temporarily stopping the continuous fabric 31 and to clamp the fabric web, whereupon a separating cut is made on the fabric web 31 with the added knife 46 can, with which a partial fabric web, which forms the outer bag 11, is cut to length.
  • the endless fabric web 31 can also be supplied directly from the circular weaving machine with the deactivation of an intermediate storage on the roll 31 '.
  • the device 2 for the cyclical cutting to length and further conveying of the inner bags 22 likewise comprises a roll cutting machine 41 ', in which the film 32 is continuously drawn off from the tubular film supply roll 32' by means of motor-driven pulling rolls 42 '.
  • the continuously drawn film 32 then arrives at a clamping plate table 43 'and from there to a transport table 2', which forms a delivery point for the individual inner bag 22, as will be explained in more detail.
  • a clamping ruler 44 ' acts together with the clamping plate table 43', the drive means 45 'of which are actuated in a predetermined cycle in order to lower this clamping ruler 44' for temporarily stopping the continuous film 32 and to clamp the film, whereupon a knife 46 'is added Separating cut can be made on the film 32, with which a partial film, which forms the inner bag 22, is cut to length.
  • the device 3 for inserting an inner bag 22 into an outer bag 11 each has means between the delivery point 1 'of the device 1 for forming the outer bags 11 and the delivery point 2' of the device 2 for forming the inner bags 22 for placing or putting one over each Inner bag 22 on a free-arm console 5; for spreading and slipping on an outer bag 11 in question over the relevant console 5 and the inner bag 22 lying thereon or slipped thereon and for pulling off the double bag 33 thus formed from the console 5, as will be explained in more detail below and in detail.
  • the device 3 for introducing an inner bag 22 into an outer bag 11 comprises a carriage 4 which moves back and forth between the two aforementioned delivery points 1 'and 2' and which is in a first movement phase takes over an inner bag 22 from the relevant delivery point 2 'and places it on the free-arm console 5 and, in a second, opposite movement phase, takes over an outer bag 11 from the relevant delivery point 1', the bag mouth 11 'of which opens and the outer bag 11 via the console 5 and the inner bag 22 placed there.
  • the carriage 4 comprises 5 suction heads 8 for receiving an inner bag 22 or an outer bag 11 and, if necessary, for spreading the bag mouth 11 'of the outer bag 11 and, if appropriate, for pulling the double bag away from the console.
  • the carriage 4 here has cross-adjustable spreading fingers which are intended to engage in the bag mouth 11 'of an outer bag 11.
  • the double sack 33 is pulled from the console 5 by the carriage 4 itself during the first movement phase or by a gripper arm 6 and onto a table 7 below the plane of movement of the carriage 4 before a subsequent inner sack 22 is placed on the console 5 is filed.
  • the console 5 can be temporarily tilted or lowered against the table 7 for pulling off a double bag 33 and in a machine cycle.
  • the arrangement can be such that the slide guide 4 'on the side of the delivery point 1' for the outer bags 11 slopes downwards in order to achieve a lowering of the slide 4 to the lower level of the delivery point 1 'compared to the delivery point 2' , with which the relevant suction heads 8 can easily suck the upper web of the outer bag 11 in question at its bag mouth 11 'and open it to pull the open bag mouth 11' over the gripper fingers 9 (FIG. 3), which then spread the bag mouth 11 ' and hold on until the carriage 4 moves towards the delivery point 2 'for the inner bag 22 towards the outer bag 11 via the on the console 5 arranged inner bag 22.
  • the carriage 4 then moves in a controlled manner to the delivery point 2 'for the inner bag 22 and there takes up a ready-made inner bag 22 with the suction heads 8 mentioned and pulls it onto the console 5, of which the double bag 33 previously assembled, for example by means of the gripper arm 6 was subtracted. This pulling off can also be supported by a tilting movement of the console 5 against the storage table 7.
  • the prepared inner bag 22 has a different length than the outer bag 11 and can be inserted at different depths therein.
  • the inner bag 22 can also vary in width in comparison to the outer bag 11 and, for example, be considerably wider.
  • the support surface 5 'of the bracket 5 is provided with a saddle which forms longitudinal folds 22' on the inner bag 22 lying thereon.
  • one continuous circumferential transfer roller means 15 on one and / or other edge of the storage table 7 for the double bags 33 below the table level and at least approximately flush with the relevant edge of the deposited double bag, which is arranged with a tactically lowerable tip above the table level -Roller means 16 cooperate in order to move the double bags to their routing from the table 7 on a, the roller means 15 and 16 downstream transverse transport table 8.
  • the double bags 33 can then be fed to a stacking stage or the like, which is not shown in detail.
  • the clothing machine is characterized by at least one device for the cyclical cutting and further conveying of an endless fabric web produced on a circular loom to form the outer bags;
  • a turret 50 on the device 3 'for inserting an inner bag 22 into an outer bag 11, which here comprises four brackets 55 of the type described above.
  • This turret 50 rotates, for example, clockwise in time with the machine and picks up an inner bag 22 at the delivery point 2 'of the device 2 for forming the inner bags 22 and then pivots through 90 ° to the delivery point 1' of the device 1 for forming the outer bags 11 is arranged here at right angles to the first-mentioned device 2.
  • an outer bag 11 is slipped over the inner bag 22 and the relevant console 55.
  • the console 55 which now carries a double bag 33, arrives at a station 51 at which, for example, the edges of the mouths of the inner bag and outer bag can be glued together.
  • the relevant console 55 with the double bag 33 welded at its mouth arrives at a device 54 for removing the double bag and for its further transport to the next treatment stage, for example the aforementioned sewing device (not shown).
  • the displacements towards and away from the consoles can take place by means of piston-cylinder systems equipped with suction means and / or gripper fingers, which means that special slides can be dispensed with.
  • further treatment levels can be achieved with a turret head.
  • the device for ver gluing or welding of the mouth edges of the inner and outer bags can also be provided on the bracket 5 of the arrangement described above according to FIGS. 1 to 3 (not shown).

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  • Supplying Of Containers To The Packaging Station (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Bag Frames (AREA)

Description

Die vorliegende Erfindung betrifft eine Konfektionsmaschine für die automatische Herstellung von Doppelsäcken aus je einem aus einem Gewebe, insbesondere Rundgewebe bestehenden Aussensack und einem aus einer Polyolefin-, insbesondere Polyäthylen-Folie bestehenden Innensack, mit mindestens einer Einrichtung zum taktmässigen Ablängen und Weiterfördern einer schlauchförmigen Endlosgewebebahn zur Bildung der Aussensäcke, mit einer Einrichtung zum faktmässigen Ablängen und Weiterfördern und gegebenenfalls Schweissen einer Bodennaht einer schlauchförmigen Folienbahn zur Bildung der Innensäcke und mit einer Einrichtung zum automatischen Einbringen eines Innensackes in einen Aussensack zur Bildung eines Doppelsackes und zu deren Weiterförderung.The present invention relates to a clothing machine for the automatic production of double sacks, each consisting of an outer sack consisting of a woven fabric, in particular a round woven fabric, and an inner sack consisting of a polyolefin, in particular polyethylene film, with at least one device for the cyclical cutting to length and further conveying of a tubular endless fabric web Formation of the outer bags, with a device for factual cutting to length and further conveying and, if necessary, welding a bottom seam of a tubular film web to form the inner bags and with a device for automatically inserting an inner bag into an outer bag to form a double bag and for further conveying it.

Es ist allgemein bekannt, dass die rationellste Art der Sackherstellung das Rundweben ist, wobei sich neben Jute als Sackmaterial insbesondere Polyolefin, etwa Polypropylen (PP) oder Polyäthylen (PE), durchgesetzt haben, die in Form von flachen Bändchen verwoben werden. Säcke aus solchen Geweben sind chemikalienbeständig, wasserunempfindlich, hygienisch, atmungsaktiv, unverrottbar u. a.It is generally known that the most efficient way of making sacks is round weaving, whereby in addition to jute, polyolefin, such as polypropylene (PP) or polyethylene (PE), which has been woven in the form of flat ribbons, has established itself as the sack material. Sacks made of such fabrics are chemical-resistant, water-insensitive, hygienic, breathable, rot-proof and. a.

Um solche gewobenen Säcke auch für kornfeinste und feuchtigkeitsempfindliche Schüttgüter wie Zement verwenden zu können, ist es bekannt, die Polyolefingewebe vor dem Abnähen oder dem Verschweissen der Bodennaht zu beschichten. Anlagen für solche Beschichtungsvorgänge sind aber sehr aufwendig und wenig rentabel.In order to be able to use such woven bags for the finest grain and moisture-sensitive bulk materials such as cement, it is known to coat the polyolefin fabrics before sewing or welding the bottom seam. Plants for such coating processes are very complex and not very profitable.

Entsprechend werden zweckmässiger Säcke aus Jute und Polyolefingewebe mit einem Innensack aus beispielsweise einer Schlauchfolie aus Polyäthylen mit geschweisster Bodennaht versehen.Appropriately, bags made of jute and polyolefin fabric are provided with an inner bag made of, for example, a tubular film made of polyethylene with a welded bottom seam.

Hierfür sind bereits Einrichtungen bekannt (DE-B-1 221 544 ; DE-B-1 155 588), welche vorgefertigte Innensäcke in vorgefertigte Aussensäcke einschieben, wofür letztere mittels Saugnäpfen an der Mündung keilförmig geöffnet werden, worauf der Innensack mittels in den Innensack eingesteckter- Keilplatte in den geöffneten Aussensack eingeschoben wird.For this purpose, devices are already known (DE-B-1 221 544; DE-B-1 155 588) which insert prefabricated inner bags into prefabricated outer bags, for which the latter are opened in a wedge shape by means of suction cups at the mouth, whereupon the inner bag is inserted into the inner bag - The wedge plate is inserted into the open outer bag.

Solche Einrichtungen sind aber kompliziert und störanfällig und neigen leicht zu Beschädigungen der Säcke beim Einstossen des Innensackes in den Aussensack resp. beim Herausziehen der Keilplatte.However, such devices are complicated and prone to failure and tend to damage the bags when the inner bag is pushed into the outer bag, respectively. when pulling out the wedge plate.

Es ist deshalb Aufgabe der vorliegenden Erfindung, eine Konfektionsmaschine für die automatische Herstellung von Doppelsäcken aus je einem aus einem Gewebe, insbesondere Rundgewebe beliebigen Materials bestehenden Aussensack und einem aus einer Polyolefin-Schlauchfolie bestehenden Innensack zu schaffen, welche geeignet ist, allen Anforderungen bezüglich höchster Arbeitsgeschwindigkeit, optimaler Automation über alle Konfektionsstufen hinweg und raumsparender und somit übersichtlicher Konzeption zu genügen. Zudem soll die erfindungsgemässe Konfektionsmaschine gestatten, Innensäcke in die Aussensäcke einzubringen, die in der Länge und Breite variieren können.It is therefore an object of the present invention to provide a confection machine for the automatic production of double sacks, each consisting of an outer sack consisting of a fabric, in particular a round fabric of any material, and an inner sack consisting of a polyolefin tubular film, which is suitable for all requirements with regard to the highest working speed optimal automation across all assembly levels and space-saving and thus clear conception. In addition, the clothing machine according to the invention is intended to allow inner bags to be inserted into the outer bags, which can vary in length and width.

Dies wird erfindungsgemäss dadurch erreicht, dass die Einrichtung zum automatischen Einbringen eines Innensackes in einen Aussensack eine freiarmige Konsole zur Aufnahme eines Innensackes, einen hin-und-her gehenden Schlitten mit einer Vorrichtung zur Aufnahme und zum Aufspreizen und Ueberstülpen eines Aussensackes über die Konsole sowie einen Ablagetisch für den Doppelsack unterhalb der Bewegungsebene des Schlittens umfasst.This is achieved according to the invention in that the device for automatically inserting an inner bag into an outer bag has a free-arm bracket for receiving an inner bag, a reciprocating carriage with a device for receiving and for spreading and pulling an outer bag over the console and one Storage table for the double bag includes below the plane of movement of the slide.

Eine solche Maschine ist in der Lage, taktmässig sowohl die Aussensäcke als auch die Innensäcke optimal vorbereitet zur Stelle deren Zusammenfugung zu verbringen, dort zum Doppelsack zusammenzufügen und danach zur Fertigkonfektion, etwa mittels einer Nähstufe und einer Stapeleinrichtung, weiterzufördern. Dieses Zusammenfügen ist unabhängig davon möglich, wie lang und breit der innensack bezüglich des Aussensackes ist. Eine solche Maschine ist auch unabhängig davon, welches Sackmaterial zur Herstellung der Innensäcke bzw. Aussensäcke verwendet wird, wobei es durchaus möglich ist, z. B. die Bodennaht eines Innensackes durch Schweissen einer schlauchförmigen Folienbahn herzustellen. Die erfindungsgemässe Maschine ist daher sehr vielseitig in ihrer Anwendbarkeit und gestattet eine rationelle und betriebssichere Arbeitsweise. Hierbei ist auch von Vorteil, dass eine Verschweissung oder Verklebung der Ränder der Sackmündungen von Aussensack und Innensack nach der Ueberstülpung des Aussensackes über den Innensack problemlos möglich ist.Such a machine is capable, in terms of cycles, of optimally preparing both the outer bags and the inner bags to be put together to assemble them, put together there to form a double bag and then further conveyed to the finished assembly, for example by means of a sewing stage and a stacking device. This assembly is possible regardless of how long and wide the inner bag is with respect to the outer bag. Such a machine is also independent of which sack material is used to produce the inner bags or outer bags, whereby it is entirely possible, for. B. to produce the bottom seam of an inner bag by welding a tubular film web. The machine according to the invention is therefore very versatile in its applicability and allows an efficient and reliable operation. It is also advantageous here that the edges of the sack mouths of the outer sack and inner sack can be welded or glued without problems after the outer sack has been slipped over the inner sack.

Weitere Vorteile der Erfindung ergeben sich aus den Ansprüchen 2 bis 9 und der nachfolgenden Beschreibung.Further advantages of the invention emerge from claims 2 to 9 and the following description.

Eine beispielsweise Ausführungsform des Erfindungsgegenstandes ist nachfolgend anhand der Zeichnung näher erläutert. Es zeigen :

  • Fig. 1 in schematischer Draufsicht eine erfindungsgemässe Konfektionsmaschine für die automatische Herstellung von Doppelsäcken ;
  • Fig. 2 die Anordnung gemäss Fig. 1 in Seitenansicht ;
  • Fig. 3 ein Detail der erfindungsgemässen Konfektionsmaschine, in grösserem Massstab ; und
  • Fig. 4 in schematischer Darstellung eine Ausführungsvariante der Anordnung gemäss Fig. 3.
An example embodiment of the subject matter of the invention is explained in more detail below with reference to the drawing. Show it :
  • Figure 1 is a schematic plan view of an assembly machine according to the invention for the automatic production of double bags.
  • Fig. 2 shows the arrangement of Figure 1 in side view.
  • 3 shows a detail of the assembly machine according to the invention, on a larger scale; and
  • 4 shows a schematic representation of an embodiment variant of the arrangement according to FIG. 3.

Die in den Fig. 1 und 2 veranschaulichte Konfektionsmaschine für die automatische Herstellung von Doppelsäcken 33 aus hier je einem, aus einem Polyolefinrundgewebe bestehenden Aussensack 11 und einem aus einer Polyäthylen-Schlauchfolie bestehenden Innensack 22 umfasst hier zunächst in Reihe eine Einrichtung 1 zum taktmässigen Ablängen und Weiterfördern einer auf einer Rundwebmaschine hergestellten Endlosgewebebahn 31 zur Bildung der Aussensäcke 11;The assembly machine illustrated in FIGS. 1 and 2 for the automatic production of double sacks 33, each consisting of an outer sack 11 consisting of a polyolefin round fabric and an inner sack 22 consisting of a polythene tubular film, comprises here in series a device 1 for cutting to length and Conveying an endless fabric web 31 produced on a circular loom to form the outer bags 11;

eine Einrichtung 2 zum taktmässigen Ablängen und Weiterfördern und gegebenenfalls Schweissen einer Bodennaht einer schlauchförmigen Folienbahn 32 zur Bildung der Innensäcke 22 ; unda device 2 for timed cutting to length and further conveying and optionally welding a bottom seam of a tubular film web 32 to form the inner bags 22; and

eine Einrichtung 3 zum Einbringen der Innensäcke 22 jeweils in einen Aussensack 11 zur Bildung der Doppelsäcke 33 und zu deren Weiterförderung. Diese Weiterförderung erfolgt in einer Querrichtung mittels einer Querfördereinrichtung 7, 15, 16 und einem Quer-Transporttisch 18 zu mindestens einer Näheinrichtung 34, wie dies nachfolgend noch näher erläutert ist.a device 3 for inserting the inner bags 22 in each case into an outer bag 11 for forming the double bags 33 and for further conveying them. This further conveying takes place in a transverse direction by means of a transverse conveyor device 7, 15, 16 and a transverse transport table 18 to at least one sewing device 34, as will be explained in more detail below.

Die Einrichtung 1 zum taktmässigen Ablängen und Weiterfördern der Aussensäcke 11 umfasst in ansich bekannter Weise eine sogenannte Rollen-Schneidemaschine 41, bei welcher von der Gewebebahn-Vorratsrolle 31' mittels motorisch angetriebenen Abzugsrollen 42 die Gewebebahn 31 kontinuierlich abgezogen wird. Die kontinuierlich abgezogene Gewebebahn 31 gelangt dann zu einem Klemmplattentisch 43 und von dort zu einem Transporttisch 1', welcher eine Abgabestelle für den einzelnen Aussensack 11 bildet, wie noch näher erläutert ist.The device 1 for cutting and further conveying the outer bags 11 according to the cycle comprises, in a manner known per se, a so-called roll cutting machine 41, in which the fabric web 31 is continuously drawn off from the fabric web supply roll 31 'by means of motor-driven take-off rollers 42. The continuously removed fabric web 31 then arrives at a clamping plate table 43 and from there to a transport table 1 ', which forms a delivery point for the individual outer bag 11, as will be explained in more detail.

Mit dem Klemmplattentisch 43 wirkt ein Klemmlineal 44 zusammen, dessen Antriebsmittel 45 in einem vorgegebenen Takt angesteuert werden, um dieses Klemmlineal 44 zum temporären Stoppen des durchlaufenden Gewebes 31 abzusenken und die Gewebebahn festzuklemmen, worauf mit dem nachgesetzten Messer 46 ein Trennschnitt an der Gewebebahn 31 erfolgen kann, womit eine Teil-Gewebebahn, welche den Aussensack 11 bildet, abgelängt wird.A clamping ruler 44 interacts with the clamping plate table 43, the drive means 45 of which are actuated in a predetermined cycle in order to lower this clamping ruler 44 for temporarily stopping the continuous fabric 31 and to clamp the fabric web, whereupon a separating cut is made on the fabric web 31 with the added knife 46 can, with which a partial fabric web, which forms the outer bag 11, is cut to length.

Die Zulieferung der endlosen Gewebebahn 31 kann hierbei auch direkt von der Rundwebmaschine her unter Ausschaltung einer Zwischenspeicherung auf der Rolle 31' erfolgen.The endless fabric web 31 can also be supplied directly from the circular weaving machine with the deactivation of an intermediate storage on the roll 31 '.

In gleicher Weise umfasst die Einrichtung 2 zum taktmässigen Ablängen und Weiterfördern der Innensäcke 22 ebenfalls eine Rollen-Schneidemaschine 41', bei welcher von der Schlauchfolie-Vorratsrolle 32' mittels motorisch angetriebenen Abzugsrollen 42' die Folie 32 kontinuierlich abgezogen wird. Die kontinuierlich abgezogene Folie 32 gelangt dann zu einem Klemmplattentisch 43' und von dort zu einem Transporttisch 2', welcher eine Abgabestelle für den einzelnen Innensack 22 bildet, wie noch näher erläutert ist.In the same way, the device 2 for the cyclical cutting to length and further conveying of the inner bags 22 likewise comprises a roll cutting machine 41 ', in which the film 32 is continuously drawn off from the tubular film supply roll 32' by means of motor-driven pulling rolls 42 '. The continuously drawn film 32 then arrives at a clamping plate table 43 'and from there to a transport table 2', which forms a delivery point for the individual inner bag 22, as will be explained in more detail.

Mit dem Klemmplattentisch 43' wirkt ein Klemmlineal 44' zu sammen, dessen Antriebsmittel 45' in einem vorgegebenen Takt angesteuert werden, um dieses Klemmlineal 44' zum temporären Stoppen der durchlaufenden Folie 32 abzusenken und die Folie festzuklemmen, worauf mit dem nachgesetzten Messer 46' ein Trennschnitt an der Folie 32 erfolgen kann, womit eine Teil-Folie, welche den Innensack 22 bildet, abgelängt wird.A clamping ruler 44 'acts together with the clamping plate table 43', the drive means 45 'of which are actuated in a predetermined cycle in order to lower this clamping ruler 44' for temporarily stopping the continuous film 32 and to clamp the film, whereupon a knife 46 'is added Separating cut can be made on the film 32, with which a partial film, which forms the inner bag 22, is cut to length.

Zwischen der Schneidemaschine 41' für die Schlauchfolie 32 zur Bildung der Innensäcke 22 und der nachgeschalteten Abgabestelle 2' ist zweckmässig noch eine hier nicht näher gezeigte Schweisszone vorgesehen, welche gestattet, am Innensack 22 eine Bodennaht zu schweissen.Between the cutting machine 41 'for the tubular film 32 to form the inner bags 22 and the downstream delivery point 2' there is expediently also a welding zone, not shown here, which allows a bottom seam to be welded to the inner bag 22.

Erfindungsgemäss weist nun weiter die Einrichtung 3 zum Einbringen jeweils eines Innensackes 22 in einen Aussensack 11 Mittel zwischen der Abgabestelle 1' der Einrichtung 1 zur Bildung der Aussensäcke 11 und der Abgabestelle 2' der Einrichtung 2 zur Bildung der Innensäcke 22 zum Auflegen oder Ueberstülpen jeweils eines Innensackes 22 auf eine freiarmige Konsole 5 ; zum Aufspreizen und Ueberstülpen eines betreffenden Aussensackes 11 über die betreffende Konsole 5 und den dort aufliegenden oder übergestülpten Innensack 22 und zum Abziehen des so gebildeten Doppelsackes 33 von der Konsole 5 auf, wie nachfolgend noch näher und im einzelnen erläutert ist.According to the invention, the device 3 for inserting an inner bag 22 into an outer bag 11 each has means between the delivery point 1 'of the device 1 for forming the outer bags 11 and the delivery point 2' of the device 2 for forming the inner bags 22 for placing or putting one over each Inner bag 22 on a free-arm console 5; for spreading and slipping on an outer bag 11 in question over the relevant console 5 and the inner bag 22 lying thereon or slipped thereon and for pulling off the double bag 33 thus formed from the console 5, as will be explained in more detail below and in detail.

Bei einer den Fig. 1 bis 3 entnehmbaren ersten Ausführungsform umfasst die Einrichtung 3 zum Einbringen jeweils eines Innensackes 22 in einen Aussensack 11 einen zwischen den beiden vorgenannten Abgabestellen 1' und 2' hin-und-her gehenden Schlitten 4, der in einer ersten Bewegungsphase einen Innensack 22 von der betreffenden Abgabestelle 2' übernimmt und auf die freiarmige Konsole 5 ablegt und in einer zweiten, gegenläufigen Bewegungsphase einen Aussensack 11 von der betreffenden Abgabestelle 1' übernimmt, dessen Sackmund 11' öffnet und den Aussensack 11 über die Konsole 5 und den dort abgelegten Innensack 22 stülpt. Hierfür umfasst der Schlitten 4 zur Aufnahme eines Innensackes 22 bzw. eines Aussensackes 11 sowie gegebenenfalls zum Aufspreizen des Sackmundes 11' des Aussensackes 11 sowie gegebenenfalls zum Abziehen des Doppelsackes von der Konsole 5 Saugköpfe 8.In a first embodiment which can be seen in FIGS. 1 to 3, the device 3 for introducing an inner bag 22 into an outer bag 11 comprises a carriage 4 which moves back and forth between the two aforementioned delivery points 1 'and 2' and which is in a first movement phase takes over an inner bag 22 from the relevant delivery point 2 'and places it on the free-arm console 5 and, in a second, opposite movement phase, takes over an outer bag 11 from the relevant delivery point 1', the bag mouth 11 'of which opens and the outer bag 11 via the console 5 and the inner bag 22 placed there. For this purpose, the carriage 4 comprises 5 suction heads 8 for receiving an inner bag 22 or an outer bag 11 and, if necessary, for spreading the bag mouth 11 'of the outer bag 11 and, if appropriate, for pulling the double bag away from the console.

Wie insbesondere Fig. 3 erkennen lässt, weist hierbei der Schlitten 4 querverstellbare, zum Eingreifen in den Sackmund 11' eines Aussensackes 11 bestimmte Spreizfinger auf.As can be seen in particular in FIG. 3, the carriage 4 here has cross-adjustable spreading fingers which are intended to engage in the bag mouth 11 'of an outer bag 11.

Weiter ist erfindungsgemäss vorgesehen, dass der Doppelsack 33 vor der Ablage eines nachfolgenden Innensackes 22 auf der Konsole 5 durch den Schlitten 4 selbst bei dessen ersten Bewegungsphase oder durch einen Greiferarm 6 von der Konsole 5 abgezogen und auf einen Tisch 7 unterhalb der Bewegungsebene des Schlittens 4 abgelegt wird. Hierbei kann die Konsole 5 für das Abziehen eines Doppelsackes 33 temporär und im Maschinentakt gegen den Tisch 7 hin abkippbar oder absenkbar sein.It is further provided according to the invention that the double sack 33 is pulled from the console 5 by the carriage 4 itself during the first movement phase or by a gripper arm 6 and onto a table 7 below the plane of movement of the carriage 4 before a subsequent inner sack 22 is placed on the console 5 is filed. In this case, the console 5 can be temporarily tilted or lowered against the table 7 for pulling off a double bag 33 and in a machine cycle.

Die Anordnung kann hierbei so sein, dass sich die Schlittenführung 4' auf der Seite der Abgabestelle 1' für die Aussensäcke 11 nach unten neigt, um ein Absenken des Schlittens 4 auf das hier niedrigere Niveau der Abgabestelle 1' vergleichsweise der Abgabestelle 2' zu erreichen, womit die betreffenden Saugköpfe 8 die obere Bahn des betreffenden Aussensackes 11 an seinem Sackmund 11' leicht ansaugen können und diesen öffnen, um den geöffneten Sackmund 11' über die Greiferfinger 9 (Fig. 3) zu ziehen, welche dann den Sackmund 11' aufspreizen und festhalten, bis der Schlitten 4 auf seiner Bewegung zur Abgabestelle 2' für den Innensack 22 hin den Aussensack 11 über den auf der Konsole 5 angeordneten Innensack 22 gestülpt hat. Der Schlitten 4 bewegt sich dann gesteuert weiter zur Abgabestelle 2' für den Innensack 22 hin und nimmt dort mit den genannten Saugköpfen 8 einen bereitliegenden Innensack 22 auf und zieht diesen auf die Konsole 5, von welcher inzwischen der vorher zusammengefügte Doppelsack 33 beispielsweise mittels dem Greiferarm 6 abgezogen wurde. Dieses Abziehen kann noch durch eine Kippbewegung der Konsole 5 gegen den Ablagetisch 7 hin unterstützt werden.The arrangement can be such that the slide guide 4 'on the side of the delivery point 1' for the outer bags 11 slopes downwards in order to achieve a lowering of the slide 4 to the lower level of the delivery point 1 'compared to the delivery point 2' , with which the relevant suction heads 8 can easily suck the upper web of the outer bag 11 in question at its bag mouth 11 'and open it to pull the open bag mouth 11' over the gripper fingers 9 (FIG. 3), which then spread the bag mouth 11 ' and hold on until the carriage 4 moves towards the delivery point 2 'for the inner bag 22 towards the outer bag 11 via the on the console 5 arranged inner bag 22. The carriage 4 then moves in a controlled manner to the delivery point 2 'for the inner bag 22 and there takes up a ready-made inner bag 22 with the suction heads 8 mentioned and pulls it onto the console 5, of which the double bag 33 previously assembled, for example by means of the gripper arm 6 was subtracted. This pulling off can also be supported by a tilting movement of the console 5 against the storage table 7.

Es ist leicht zu ersehen, dass der vorbereitete Innensack 22 vergleichsweise zum Aussensack 11 unterschiedliche Länge aufweisen und unterschiedlich tief in diesen eingelegt werden kann.It is easy to see that the prepared inner bag 22 has a different length than the outer bag 11 and can be inserted at different depths therein.

Aber auch in der Breite kann der Innensack 22 vergleichsweise zum Aussensack 11 variieren und beispielsweise erheblich breiter sein.However, the inner bag 22 can also vary in width in comparison to the outer bag 11 and, for example, be considerably wider.

Um diesen dann vor dem Einbringen in den Aussensack 11 zu raffen, ist die Auflagefläche 5' der Konsole 5 mit einer Sattelung versehen, welche am aufliegenden Innensack 22 Längsfalten 22' bildet.In order to then gather this before inserting it into the outer bag 11, the support surface 5 'of the bracket 5 is provided with a saddle which forms longitudinal folds 22' on the inner bag 22 lying thereon.

Weiter münden an der Auflagefläche 5' der Konsole 5, welche natürlich auch eben sein kann, Unterdruck-Kanäle aus, welche über einen Regler 10' an einer Vakuum-Pumpe 10 angeschlossen sind (Fig. 3). Damit ist es möglich, den betreffenden Innensack 22 auf der Konsole 5 ohne weitere Hilfsmittel festzuhalten.Furthermore, negative pressure channels open at the support surface 5 'of the console 5, which can of course also be flat, which are connected to a vacuum pump 10 via a controller 10' (FIG. 3). This makes it possible to hold the inner bag 22 in question on the console 5 without further aids.

Insbesondere bei der Anordnung gemäss Fig. 3 ist es möglich, durch entsprechende Steuerung des Saugstromes von der Mitte der Konsole her zu den Seitenkanten hin eine präzise Faltung des Innensackes 22 entlang der Sattelung der Auflagefläche 5' der Konsole 5 zu erreichen und damit eine Verkürzung der Sackbreite vorzunehmen, um diesen ohne weiteres in den Aussensack 11 einbringen zu können.In particular with the arrangement according to FIG. 3, it is possible to achieve a precise folding of the inner bag 22 along the saddle of the support surface 5 'of the console 5 by corresponding control of the suction flow from the center of the console to the side edges and thus a shortening of the Make bag width so that it can be easily inserted into the outer bag 11.

Weiter ist vorgesehen, am einen und/oder anderen Rand des Ablagetisches 7 für die Doppelsäcke 33 unterhalb der Tischebene und wenigstens angenähert fluchtend mit der betreffenden Randkante des abgelegten Doppelsackes vorzugsweise kontinuierlich umlaufende Umsetz-Rollenmittel 15 anzuordnen, welche mit oberhalb der Tischebene taktmässig absenkbar angeordnete Tipp-Rollenmittel 16 zusammenwirken, um die Doppelsäcke zu deren Wegführung taktmässig vom Tisch 7 auf einen, den Rollenmitteln 15 und 16 nachgeschalteten Quer-Transporttisch 8 umzusetzen.It is further provided that preferably one continuous circumferential transfer roller means 15 on one and / or other edge of the storage table 7 for the double bags 33 below the table level and at least approximately flush with the relevant edge of the deposited double bag, which is arranged with a tactically lowerable tip above the table level -Roller means 16 cooperate in order to move the double bags to their routing from the table 7 on a, the roller means 15 and 16 downstream transverse transport table 8.

Diese Massnahmen gestatten ein sicheres, folgegenaues und taktmässiges Querverschieben des fertig zusammengefügten und auf den Ablagetisch 7 aufgebrachten Doppelsackes 33, der so zu einer nächsten Behandlungsstufe, beispielsweise die vorerwähnte Nähstrasse 34 zur Herstellung einer Bodennaht am Doppelsack gelangen kann.These measures allow the double bag 33, which has been fully assembled and is applied to the storage table 7, to be shifted securely, precisely and in terms of cycle, which can then proceed to a next treatment stage, for example the aforementioned sewing line 34 for producing a bottom seam on the double bag.

Von dort können die Doppelsäcke 33 dann einer nicht näher gezeigten Stapelstufe oder dgl. zugeführt werden.From there, the double bags 33 can then be fed to a stacking stage or the like, which is not shown in detail.

Aus dem Vorstehenden ergibt sich nun eine Konfektionsmaschine für die automatische Herstellung von Doppelsäcken, aus je einem, aus einem Gewebe, insbesondere Rundgewebe bestehenden Aussensack und einem, aus einer Polyolefin-, insbesondere Polyäthylen-Folie bestehenden Innensack, mit welcher höchste Arbeitsgeschwindigkeiten bei einer optimalen Automation über alle Konfektionsstufen hinweg erzielbar sind, wobei sich die Könfektionsmaschine als raumsparende, übersichtliche und sehr einfache und somit praktisch wartungsfreie Konzeption darstellt, die allen vorgestellten Anforderungen bezüglich ändernden Dimensionen von Innensack und Aussensack genügt.The above now results in a clothing machine for the automatic production of double bags, each consisting of an outer bag consisting of a fabric, in particular a round fabric, and an inner bag consisting of a polyolefin, in particular polyethylene film, with which the highest working speeds with optimal automation can be achieved across all confection levels, whereby the confection machine presents itself as a space-saving, clear and very simple and thus practically maintenance-free concept that meets all the requirements presented with regard to changing dimensions of the inner bag and outer bag.

Selbstverständlich sind an einer solchen Konfektionsmaschine eine grosse Anzahl Modifikationen möglich, ohne dabei den Erfindungsgedanken zu verlassen, nämlich dass sich die Konfektionsmaschine auszeichnet durch mindestens eine Einrichtung zum taktmässigen Ablängen und Weiterfördern einer auf einer Rundwebmaschine hergestellten Endlosgewebebahn zur Bildung der Aussensäcke;Of course, a large number of modifications are possible on such a clothing machine without departing from the inventive concept, namely that the clothing machine is characterized by at least one device for the cyclical cutting and further conveying of an endless fabric web produced on a circular loom to form the outer bags;

eine Einrichtung zum taktmässigen Ablängen und Weiterfördern und gegebenenfalls Schweissen einer Bodennaht einer schlauchförmigen Folienbahn zur Bildung der Innensäcke ; und eine Einrichtung zum Einbringen der Innensäcke jeweils in einen Aussensack zur Bildung der Doppelsäcke und zu deren Weiterförderung.a device for rhythmic cutting to length and further conveying and optionally welding a bottom seam of a tubular film web to form the inner bags; and a device for inserting the inner sacks into an outer sack to form the double sacks and to further convey them.

Beispielsweise ist es u. a. gemäss Fig. 4 möglich, an der Einrichtung 3' zum Einbringen jeweils eines Innensackes 22 in einen Aussensack 11 einen Revolverkopf 50 vorzusehen, der hier vier Konsolen 55 der vorbeschriebenen Art umfasst. Dieser Revolverkopf 50 dreht beispielsweise im Uhrzeigersinn im Takt der Maschine und nimmt an der Abgabestelle 2' der Einrichtung 2 zur Bildung der Innensäcke 22 einen Innensack 22 auf und schwenkt dann um 90° zur Abgabestelle 1' der Einrichtung 1 zur Bildung der Aussensäcke 11, die hier im rechten Winkel zur erstgenannten Einrichtung 2 angeordnet ist. Dort wird über den Innensack 22 und die betreffende Konsole 55 ein Aussensack 11 übergestülpt. Mit einer weiteren Drehung um 90° gelangt dann die Konsole 55, die nun einen Doppelsack 33 trägt, zu einer Station 51, bei der beispielsweise die Ränder der Mündungen von Innensack und Aussensack miteinander verklebt werden können. Mit einem weiteren Schwenk des Revolverkopfes 50 gelangt dann die betreffende Konsole 55 mit dem an seiner Mündung verschweissten Doppelsack 33 zu einer Einrichtung 54 zum Abziehen des Doppelsackes und zu dessen Weitertransport zur nächsten Behandlungsstufe, beispielsweise die vorgenannte Näheinrichtung (nicht dargestellt).For example, it is a. 4 possible to provide a turret 50 on the device 3 'for inserting an inner bag 22 into an outer bag 11, which here comprises four brackets 55 of the type described above. This turret 50 rotates, for example, clockwise in time with the machine and picks up an inner bag 22 at the delivery point 2 'of the device 2 for forming the inner bags 22 and then pivots through 90 ° to the delivery point 1' of the device 1 for forming the outer bags 11 is arranged here at right angles to the first-mentioned device 2. There, an outer bag 11 is slipped over the inner bag 22 and the relevant console 55. With a further rotation through 90 °, the console 55, which now carries a double bag 33, arrives at a station 51 at which, for example, the edges of the mouths of the inner bag and outer bag can be glued together. With a further swiveling of the turret 50, the relevant console 55 with the double bag 33 welded at its mouth then arrives at a device 54 for removing the double bag and for its further transport to the next treatment stage, for example the aforementioned sewing device (not shown).

Bei einer solchen Anordnung können die Verschiebungen zu den Konsolen hin und von den Konsolen weg durch mit Saugmitteln und/oder Greiferfingern ausgerüstete Kolben-Zylinder-Systeme erfolgen, womit auf besondere Schlitten verzichtet werden kann. Zudem lassen sich mit einem Revolverkopf weitere Behandlungsstufen erreichen.With such an arrangement, the displacements towards and away from the consoles can take place by means of piston-cylinder systems equipped with suction means and / or gripper fingers, which means that special slides can be dispensed with. In addition, further treatment levels can be achieved with a turret head.

Weiter kann natürlich die Einrichtung zum Verkleben oder Verschweissen der Mündungsränder von Innen- und Aussensack auch an der Konsole 5 der vorbeschriebenen Anordnung gemäss den Fig. 1 bis 3 vorgesehen sein (nicht dargestellt).The device for ver gluing or welding of the mouth edges of the inner and outer bags can also be provided on the bracket 5 of the arrangement described above according to FIGS. 1 to 3 (not shown).

Claims (9)

1. A machine for the automatic manufacture of double sacks, each sack comprising an outer sack made of a fabric, in particular a tubular fabric, and an inner sack made of a polyolefine film, in particular polyethylene film, essentially comprising at least one device (1) for the timed length-cutting and further transportation of a tubular, endless web of fabric for the formation of the outer sack (11); a device (2) for the timed lengthcutting and transportation and, if required, fusing of a bottom seam of a tubular run of film for the formation of the inner sack (22) ; and a device (3) for the automatic insertion of an inner sack (22) into an outer sack (11) for the formation of a double sack (33) and for the further transportation thereof, characterized in that the device (3) for the automatic insertion of an inner sack (22) into an outer sack (11) comprises a support (5) with free arms for taking up an inner sack (22) ; a reciprocating carriage (4) having a device for taking up and for spreading and slipping an outer sack (11) over the support (5), as well as a depositing table (7) for the double sack, disposed below the plane of motion of the sliding carriage (4).
2. The machine as defined in claim 1 wherein the sliding carriage (4) takes, at an initial phase of motion, an inner sack (22) from an initial supply station (2') and places said inner sack onto the support (5) and, at a second, countercurrent phase of motion, takes the outer sack (11) from another supply station (7').
3. The machine as defined in claims 1 and 2 wherein the drawing-off and depositing of the double sack (33) ensues prior to the depositing of a subsequent inner sack (22) onto the support (5) by means of the sliding carriage itself at the initial phase of motion thereof or by a gripper arm (6).
4. The machine as defined in claim 3 wherein the support (5) for the drawing off of a double sack (33) is supported temporarily and in time with the machine, inclinable or capable of being lowered in the direction of the table (7).
5. The machine as defined in claims 1 to 4 wherein the sliding carriage (4) comprises suck- tion heads (8) for taking up an inner sack (22) or an outer sack (11) as well as, if required, for spreading open the mouth (11') of the outer sack (11) as well as, if required, for drawing off the double sack (33) from the support (5).
6. The machine as defined in claim 1 wherein the sliding carriage (4) has cross-adjustable spreading fingers (9) for gripping into the mouth (11') of an outer sack (11).
7. The machine as defined in claim 1 wherein the support (5) has a bearing area (5 ') forming longitudinal folds (22') on the inner sack (22) lying thereon.
8. The machine as defined in claim 1 wherein the support (5) has low-pressure channels opening out at the bearing area (5') thereof and connected to a vacuum pump (10).
9. The machine as defined in claim 1 wherein continuously rotating changing rollers or rolls (15) are disposed on one edge of the depositing table (7) for the double sacks (33), below the plane of the table and at least approximately in alignment with the respective edge of the deposited double sack, which interact with tipping rollers (16) that are capable of being lowered in fixed cycle and which are disposed above the plane of the table in order to change in fixed cycles, for the taking away thereof, the double sacks from the table (7) onto a transverse feed table (18), downstream of the rollers or rolls (15 and 16).
EP84113015A 1983-11-03 1984-10-29 Machine for automatically manufacturing double bags Expired EP0140360B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5940/83A CH662307A5 (en) 1983-11-03 1983-11-03 CONFECTION MACHINE FOR THE AUTOMATIC PRODUCTION OF DOUBLE BAGS.
CH5940/83 1983-11-03

Publications (3)

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EP0140360A2 EP0140360A2 (en) 1985-05-08
EP0140360A3 EP0140360A3 (en) 1987-08-12
EP0140360B1 true EP0140360B1 (en) 1989-09-20

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EP (1) EP0140360B1 (en)
JP (1) JPS6091421U (en)
KR (1) KR890000371Y1 (en)
AT (1) AT382818B (en)
BR (1) BR8405605A (en)
CH (1) CH662307A5 (en)
DE (1) DE3479792D1 (en)
IN (1) IN162425B (en)

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CN111902265A (en) * 2018-09-17 2020-11-06 洛希亚有限公司 Device and method for producing a composite bag and composite bag

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WO2017161430A1 (en) * 2016-03-24 2017-09-28 Silva Luis Dias Da Apparatus for continuously inserting a roll of linear plastic material inside a roll of raffia-like braided polypropylene
CN111902265A (en) * 2018-09-17 2020-11-06 洛希亚有限公司 Device and method for producing a composite bag and composite bag
CN111902265B (en) * 2018-09-17 2022-09-23 洛希亚有限公司 Device and method for producing a composite bag and composite bag

Also Published As

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KR890000371Y1 (en) 1989-03-09
DE3479792D1 (en) 1989-10-26
AT382818B (en) 1987-04-10
EP0140360A3 (en) 1987-08-12
JPS6091421U (en) 1985-06-22
IN162425B (en) 1988-05-28
CH662307A5 (en) 1987-09-30
KR850007960U (en) 1985-10-26
EP0140360A2 (en) 1985-05-08
ATA417283A (en) 1986-09-15
BR8405605A (en) 1985-09-10

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