EP0424361B1 - Einrichtungen zum Begrenzen des Flüssigkeitsstromes, insbesondere für die Beutelherstellung aus weichem Material, insbesondere aus Kunststoff - Google Patents

Einrichtungen zum Begrenzen des Flüssigkeitsstromes, insbesondere für die Beutelherstellung aus weichem Material, insbesondere aus Kunststoff Download PDF

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Publication number
EP0424361B1
EP0424361B1 EP91100220A EP91100220A EP0424361B1 EP 0424361 B1 EP0424361 B1 EP 0424361B1 EP 91100220 A EP91100220 A EP 91100220A EP 91100220 A EP91100220 A EP 91100220A EP 0424361 B1 EP0424361 B1 EP 0424361B1
Authority
EP
European Patent Office
Prior art keywords
bag
bars
opening
sheath
vacuum generating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91100220A
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English (en)
French (fr)
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EP0424361A3 (en
EP0424361A2 (de
Inventor
André Jean Paul Allegre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Decomatic SA
Original Assignee
Decomatic SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Decomatic SA filed Critical Decomatic SA
Publication of EP0424361A2 publication Critical patent/EP0424361A2/de
Publication of EP0424361A3 publication Critical patent/EP0424361A3/fr
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Publication of EP0424361B1 publication Critical patent/EP0424361B1/de
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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
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/106—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from sheets cut from larger sheets or webs before finishing the bag forming operations
    • 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
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • 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
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/864—Mounting separate handles on bags, sheets or webs

Definitions

  • the present invention relates to pressure-reducing members, in particular for the manufacture of bags made of flexible material, in particular plastic, and more specifically of side bellows bags, in particular made of plastic.
  • the device used comprises means making it possible to present a sheath or a bag already cut from the sheath in a flattened position, means making it possible to separate, by a certain distance, the two edges of the opening of the bag and unfold, at least partially, the bellows, means for presenting on either side of the plane of symmetry of the bag, two bars arranged in parallel and spaced from each other by a sufficient distance so as not to be hampered by the presence of the bellows, and to introduce said bars into the opening thus formed in the vicinity of the internal faces of the corresponding edges of the bag, and means for welding said edges against the bars.
  • US-A-2 859 036 thus describes a pressure-reducing member provided with relatively deep oblong recesses and at the bottom of which are arranged two suction orifices.
  • the subject of the invention is pressure-reducing organs, specially adapted for gripping bags of flexible material, which have a rectangular geometric surface provided with a plurality of suction orifices arranged at the bottom of bowls formed in the surface of the depression-causing organ and which are characterized in that at least some of the suction orifices are arranged eccentrically at the bottom of bowls of substantially circular shape and of shallow depth.
  • the diameter of these bowls can advantageously be of the order of 8 mm.
  • FIGS. 4 and 5 For the description of depressogenic organs according to the invention, reference is made to FIGS. 4 and 5 and to the corresponding descriptive part.
  • the invention is applicable to a method, of the aforementioned type, for manufacturing bags made of flexible material, in particular plastic or complex material, characterized in that, to separate the two edges of the orifice from one another opening of the bag, so as to open the bellows, a vacuum is established on the two external faces of each edge of the opening of the bag using two pressure-reducing members extending parallel to said edges of on either side of the bag, said two pressure-reducing members being initially spaced from each other by a distance slightly greater than the thickness of the bag so as to move said edges until they apply against depression-causing organs.
  • the two pressure-reducing members for the two edges are, in the initial state, that is to say at the time of the depression, separated from one another by a distance of the order from 0.5 to 1 mm, the bag in the flattened state being placed in between.
  • the difference between the distance separating the two pressure-reducing members and the thickness of the bag is between 0.2 and 0.4 mm.
  • the flattened sheath is cut into individual bags, the bottom of which is welded, then the underside of the bag which has just been cut is applied by vacuum against part of a horizontal transfer table moving transversely relative to the direction of travel of the sheath to present the bag at a bag opening station and introduction and fixing or welding of the bars, an adequate part of said table having a pressure-reducing member holding said lower face applied against the table at a certain distance from the very edge of the opening of the bag.
  • this cut is made downstream of the weld line so that the opening of the bag opening scroll in the direction of the sheath looks in the upstream direction of scrolling. Thanks to this characteristic, it is possible to immediately fix the lower face near the lower edge of the bag opening against the pressure-reducing element of the table, and this in a fixed and precise position resulting from the cutting and welding of the bottom of the next bag, the table, in its translation, also passing under a guide ensuring good maintenance of the rest of the bag on the table.
  • the sheath when the bag has just been cut, can be given a short backward movement away from the opening of the bag which has just been cut, so as to avoid any interference between the sheath and the bag when translating the bag.
  • the bars, with or without handles are brought separately from above and from below, in the form of piles so as to be taken in loading by distribution means such as very flat clamps.
  • distribution means can advantageously be associated with means such as, for example, cams ensuring, at the time of gripping, a relative displacement, in the direction of stacking, ensuring a separation between the bar which will be taken in load and the rest of the overhead or underlying bars.
  • the invention can be used in a device for the implementation of this method, said device being characterized in that the means making it possible to separate, by a certain distance, the two edges of the opening of the bag and to unfold, at least partially, the bellows, comprise two pressure-reducing members arranged one opposite the other and initially spaced from each other by a distance making it possible to cause, at the start of the aspiration, a displacement of the edges of the bag until it comes apply against the respective depressive organs.
  • This distance can advantageously be of the order of 0.7 mm for conventional plastic bags.
  • the device can advantageously include two welding stations or fixing bars, alternately supplied by a table or other means of translation taking care of the bag cut from the sheath. If the bag is transferred in a horizontal state, on a table, it can be maintained and positioned on this table by another pressure-reducing member carried by the table in a location which does not interfere with that of the two pressure-reducing bodies intended for the opening of the bag, which is applied against the underside of the edge of the bag.
  • the device according to the invention preferably has, at a location where the sheath runs, a welding station ensuring transverse welding forming a bottom of the bag and a cutting station ensuring the separation of the bag formed from the sheath, the cutting station being located downstream of the welding station with respect to the direction of travel of the sheath, so that the opening of the bag formed by the cutting looks upstream.
  • the device can have means ensuring the formation of fold zones frank at the bellows, these means may include heating means, for example by hot pulsed air, the edges of the sheath folded at the bellows, and the pressing rollers of the edges thus heated.
  • heating means for example by hot pulsed air, the edges of the sheath folded at the bellows, and the pressing rollers of the edges thus heated.
  • the device may include two magazines for distributing strips, making it possible to bring the strips on either side of the plane of the bag to the level of the opening of the bag, these distributors being supplied by stacked bars .
  • the distributors can advantageously cooperate with gripper means capable of simultaneously gripping two bars, one from one of the distributors, for example an upper distributor, and the other from the other distributor, for example a lower distributor, to bring them simultaneously, in a position spaced from each other, in the opening of the bag, on either side of the bellows, said clamps being arranged so that they can be removed when welding jaws bring the bars, applied against the edges of the bag, towards each other, for welding.
  • the welding jaws are respectively mounted on mobile equipment, for example sliding, which also carry the pressure-reducing members ensuring the opening of the bag.
  • the device comprises, for feeding it, a reel receiving a roll 1 of flattened plastic sheath from which the sheath 2 can pass through the device by means of usual drive means by rollers 3.
  • the sheath 2 arrives from there usual accumulation zone 4 from which it is brought, by references 5, to a shaping station 6 comprising, in the usual way, a free inner core supported by rollers and intended to give the sheath a rectangular section, this post also comprising means making it possible to practice, in this rectangular section, below the core, folding internal intended to form the bellows of the sheath. Leaving the extraction rollers 7 of station 6, the sheath then has a flattened shape with, at each of its two edges, an internal bellows.
  • the sheath is then led to hot air heating means 8 of the sheath edges which provide a certain heating of the folds of the edges at the bellows.
  • a pair of pressing rollers 9 ensures an "ironing" of the sheath whose folds of bellows are thus clearly formed.
  • the sheath 2 then passes into a new accumulation station 10 in order to be brought to verification, lateral guide 11 and printing location 12 stations, then reach a welding and cutting station 13.
  • control means such as for example optical sensors, can advantageously be arranged, in order to ensure regulation, known per se, of the advancement of the sheath and of the sequence operations of the various stations.
  • a set of conductors 16 connected to electronic control and command means 17 allows the operations control.
  • the station 13 has two plates, namely an upstream plate 18 and a downstream plate 19 leaving between them a certain gap.
  • a resistance support 20 mounted fixed and receiving inside it an armored electrical resistance 21, the upper edge of the support 20, which extends transversely over the width of the sheath and beyond, seeing a thin strip of polytetrafluoroethylene 22 pass over it flowing between two rollers 23, 24.
  • the role of this strip 22 is to prevent the film of thermoplastic material from sticking against the upper part of the sealing bar or support 20.
  • the support 20 Above the support 20 is disposed a similar support 25 also beveled and receiving inside it an electric armored resistance 26.
  • the lower edge of the support 25 also sees a strip of polytetrafluoroethylene 27 running between rollers 28, 29 and having the same function as the strip 22.
  • the assembly is mounted on a vertically movable assembly making it possible to alternate and alternately bring the support 25 of the support 20, the bringing together of these supports causing the welding of a line transversely to the sheath, and intended to form the bottom of the bag.
  • a piece also mobile Downstream of the welding supports 20, 25, there is located a piece also mobile, preferably carried by the same crew, and having, on a suitable structure 30, a knife holder 31 driven in an alternating movement horizontally and transversely by relative to the direction of travel of the sheath and supporting a knife 32 which cuts the sheath slightly downstream from the weld line, the operation of the knife 32 therefore separating from the sheath a complete bag whose welded bottom is already located far downstream on the table 14 and whose opening looks at the welded bottom of the sheath upstream.
  • the bag which has just been cut therefore rests, at this moment, flat on the short fixed plate 19 and on the table 14 which follows it, its opening being arranged at the level of the knife 32 in the immediate vicinity of the sheath 2 upstream. .
  • a pressure-relief member 40 located in the table 14 has been actuated and maintains by suction, the bag on the table 14.
  • This pressure-relief member 40 extends over the transverse width of the table, that is to say perpendicular to the direction of travel of the sheath, under the entire width of the bag, and this all along the rear edge, that is to say facing downstream, of the table 14.
  • the rear or downstream edge 41 of the table 14, that is to say the edge of the pressure-reducing member 40, is situated at a distance of the order of 100 mm from the knife 32, that is to say from the location where finds the opening of the bag placed on the table, so that the bag protrudes from the table 14 over this distance, the protruding part sliding on the plate 19 which extends, tr Ansversally, up to the two stations 15 for inserting and welding bars arranged on either side of the device, and where the fixed table 14 is extended, in a way, by the movable lower pressure-reducing member of the station 15.
  • the station 15 comprises, on two mobile assemblies 35, 36, said two lower 50 and upper 51 pressure reducing members so that they can be moved, by the movement of the crews 35, 36, on either side of the horizontal plane in which find the table 14 and the bag, between a close position in which they are separated by a distance of 0.7 mm, and a separated position such that the side bellows of the bag are completely unfolded.
  • the pressure-reducing elements are produced in the form of rectangular flat tanks, the internal volume of which communicates with a suction orifice connected to a vacuum pump, said tank being surmounted by a rectangular cover 52 in the thickness of which a number of circular hollow bowls 53 of shallow depth (about 0.5 mm) into which opens, eccentrically, for example at the periphery, a through orifice 54 through which the depression prevailing inside the pressure-reducing organ is transmitted to the hollow 53.
  • the diameter of a hollow 53 is for example of the order of 8 mm.
  • the two members 50, 51 are spaced apart by a distance of 15 mm, so that the part of the bag which protrudes behind the end 41 of the table 14 is arranged between the two pressure-reducing members 50, 51 whose width is 50 mm, that is to say less than 50 mm than the length of the part of the bag which protrudes from the end 41, the latter then being placed at a short distance from the edge corresponding to the lower pressure-reducing member 50.
  • the two pressure-reducing members 50, 51 are brought closer to each other until they are spaced by a distance of 0, 7 mm.
  • the two pressure-reducing members are then placed under vacuum so that the corresponding walls of the bag are applied against the two respective pressure-reducing members, the spacing of which will then cause the opening of the bag orifice to open completely, causing the bellows to unfold completely. side of the bag.
  • the station 15 also has two welding jaws 55, 56 each comprising a resistor (not shown) embedded in the jaw made of steel, these jaws being capable of deviating or approaching symmetrically on either side of the horizontal plane of the table 14.
  • the welding jaws 55, 56 are respectively secured to the pressure-reducing members 50, 51.
  • FIG. 9 represents a schematic sectional view of the horizontal sliding table 14, the pressure-reducing members 50 and 51, to the welding jaws secured 55 and 56, bag and handle bars 63, 64.
  • Station 15 also has two distributors 57, 58 receiving stacks of bars, 59, 60, these distributors comprising guides inclined downward and upstream with corresponding belts to cause the displacement of the stacked bars.
  • These guides 61, 62 are bent so that an upper stack of bars will descend from the top and a lower stack of bars will rise from the bottom, until the lower lower bars 64 and upper 63 are present. practically symmetrical on either side of the geometrical plane in which the table 14 is arranged.
  • FIG. 6 the outlet of the lower bars 64 (the handles of the bars not being shown), these bars being stacked in the guide 62 which each has a bar at its upper end.
  • the upper and lower bars, 63, 64 are gripped simultaneously by sets or assemblies of clamps 65, 66, each set comprising, as can be seen in FIG. 7, on a crew, a plurality of clamps 67, 68, each forceps having two fine jaws which are likely to be disposed on either side of the end bar such as 63, 64 presented respectively by the lower and upper distributors of bars.
  • the respective sets of grippers 65, 66 are movable, on the one hand in rotation about an axis 69, on the other hand in translation by displacement of the axis 69 towards and away from the welding jaws 55, 56 , the movement of the crews 65, 66 being guided by means of paths or ramps and switching which will only be described schematically and which give them, under the simple effect of translation, the paths which will be defined below.
  • Station 15 also has a support device 70 having two or more substantially vertical stops or fingers 72 pushed upward relative to the entire device 70 by a suitable spring. Two movable retaining stops 71 are also displaceable at this level. Finally, a plate 73 inclined upwards and upstream can be moved in this direction, so as to form a means of detaching the finished bag to facilitate its evacuation, by the downstream direction, far from the station 15.
  • the axis 69 is then brought back, the pliers this time driving the two bars as seen in diagram c.
  • the axis 69 is again moved forward, the crews 65 and 66 being held in the open position by the positioning of their rollers 75 which, the switches 74 having tilted horizontally, are forced to enter their guide paths 76 (FIG. d).
  • the pressure-reducing members 50, 51 which have been placed under vacuum, move away from one another and cause the opening of the walls forming the edge of the bag and the complete deployment of the side bellows of the bag. It is the same for the jaws 55, 56 which are integral therewith.
  • the axis 69 is then moved downstream over a long distance and, the switch 74 and its symmetrical being controlled to engage the rollers 75 integral with the grippers in their guide paths, the gripper crews 65 and 66 are therefore moved in the same direction, keeping their angular position open, until the bars 63, 64 carried by the clamps approach the opening of the bag ( Figure e).
  • the guide tracks 76 cause a rapid tilting of the crews 65, 66 around the axis 69 so that the bars penetrate into the opening of the bag, one on the lower jaw 56 and the other under the upper jaw 55.
  • a slight continuation of the advance of the axis 69 causes the end of the movement of insertion of the bars 63, 64 in the opening and the simultaneous bringing together of the crews around the axis 69, so that the bars 63, 64 are brought closer to one another while the welding jaws follow the movement by applying the edges of the bag against the bars while the pressure-reducing members 50, 51 are not more depressed and allow the bag to close, the bellows coming, therefore, to be arranged between the two bars 63, 64 which approach each other.
  • the jaws of the clamps 67, 68 open and the clamps are withdrawn in the upstream direction, initially in the closed position, by the guide action of the guide tracks 76, then in the open position, as soon as they have reached the position they occupied just before their closing in the introduction phase, releasing the bars as seen in diagram g.
  • the jaws 55, 56 finish tightening and the welding current is then sent into the heating jaws 55, 56, causing the welding of the bars against the internal faces of the lips of the opening of the bag.
  • the jaws open partially as seen in diagram g and the ejection means, such as the plate 73 and its upper symmetrical (not shown) relative to the presentation plane of the bag, are implemented , peeling off the edges of the bag from the jaws, after which the finished bag can be discharged into the plane of the table 14, which, at this time, has already left to take charge of a new bag and bring it to the other station 15 for positioning and welding bars arranged on the other side of the machine.
  • the ejection means such as the plate 73 and its upper symmetrical (not shown) relative to the presentation plane of the bag
  • the two spring-mounted stops 72 come into contact with the lower clamp 68 and allow the latter to be slightly raised above the lower bar 64 so as to allow its release.
  • An identical device is associated with the clamp 67, symmetrically with respect to the plane in which the bag is presented. Also note that each stop 72 and its symmetrical hold the clamps 68 and 67 in contact with each other at the end of the cycle of introducing the handles into the bag.
  • the two lower stops 71 integral with the frame of the machine as well as two upper fixed stops (not shown), which are symmetrical with respect to the presentation plane of the bag, are intended to oppose a risk of withdrawal bars during the disengagement movement of the clips of the bars 63, 64.
  • FIG. 10 shows the different phases of the movements of the table 14 relative to the station 13 and to the two stations 15 arranged on either side.
  • the diagram a shows that the transverse dimension of the table 14 corresponds to four bag widths. Consequently, the table has four pressure-reducing members 40 arranged frontally.
  • the table 14 is then shifted to the left and (diagram c ) the bag 34A is presented to the station 15 on the left.
  • the bag 34A is taken care of and maintained by the pressure-reducing organs 50, 51 of the station 15 on the left and the organ 40 is no longer under vacuum.
  • a bag 34b is brought to the table 14 from this station 13 and held by suction by the pressure-reducing member 40 aligned with the sheath 2.
  • the table 14 is then moved to the right (diagram e ) by sliding under the bag 34A into which the bars 63, 64 penetrate, then the extreme member 40 brought under the bag 34A is put under vacuum; the 34B bag is is thus presented at the other item 15.
  • the table 14 is moved to the left (diagram g ) and the member 40 located under the bag 34A is removed from the vacuum.
  • the bag 34A can therefore be removed; in this movement, the table 14 brought the bag 34C to the position 15 on the left and slipped under the bag 34B.
  • a new bag 34D is presented at table 14 by station 13.

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  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (5)

  1. Unterdruckorgan, das speziell zum Ergreifen eines Beutels aus schmiegsamem Material ausgelegt ist und eine geometrische rechteckige Oberfläche aufweist, die mit einer Mehrzahl von Ansaugöffnungen (54) versehen ist, die exzentrisch am Boden von Mulden angeordnet sind, die in der Oberfläche des Unterdruckorgans (50) ausgebildet Sind, dadurch gekennzeichnet, daß zumindest gewisse Ansaugöffnungen (54) exzentrisch am Boden der Mulden (53) mit im wesentlichen kreisförmiger Form und geringer Tiefe angeordnet sind.
  2. Unterdruckorgan nach Anspruch 1, dadurch gekennzeichnet, daß die Ansaugöffnungen (54) zu einem Rand der Mulde (53) hin angeordnet sind.
  3. Unterdruckorgan nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Mulden (53) einen Durchmesser in der Größenordnung von 8 mm haben.
  4. Unterdruckorgan nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Mulden (53) eine Tiefe in der Größenordnung von 0,5 mm haben.
  5. Unterdruckorgan nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß es in der Form einer flachen rechteckigen Wanne hergestellt ist, deren inneres Volumen mit einer Ansaugöffnung in Verbindung steht, die dazu ausgelegt ist, mit einer Unterdruckpumpe verbunden zu werden, wobei die Wanne von einer rechteckigen Abdeckung (52) überdeckt ist, in deren Dicke eine gewisse Anzahl von kreisförmigen, die Mulden bildenden Vertiefungen (53) geringer Tiefe ausgebildet sind, in die in exzentrischer Weise eine hindurchgehende Öffnung (54) mündet, durch die der Unterdruck, der im Innern des Unterdruckorgans (50) herrscht, zu der Mulde (53) übertragen wird.
EP91100220A 1988-12-14 1989-11-22 Einrichtungen zum Begrenzen des Flüssigkeitsstromes, insbesondere für die Beutelherstellung aus weichem Material, insbesondere aus Kunststoff Expired - Lifetime EP0424361B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR8816441 1988-12-14
FR8816441A FR2640193B1 (fr) 1988-12-14 1988-12-14 Procede de fabrication de sacs en matiere souple, notamment plastique, dispositif pour la mise en oeuvre de ce procede et sacs obtenus
EP89403216A EP0375479B1 (de) 1988-12-14 1989-11-22 Verfahren zum Herstellen von Beuteln aus geschmeidigem Material, insbesondere aus Kunststoff, und Vorrichtung zum Ausführen dieses Verfahren

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP89403216A Division EP0375479B1 (de) 1988-12-14 1989-11-22 Verfahren zum Herstellen von Beuteln aus geschmeidigem Material, insbesondere aus Kunststoff, und Vorrichtung zum Ausführen dieses Verfahren
EP89403216.8 Division 1989-11-22

Publications (3)

Publication Number Publication Date
EP0424361A2 EP0424361A2 (de) 1991-04-24
EP0424361A3 EP0424361A3 (en) 1991-09-18
EP0424361B1 true EP0424361B1 (de) 1994-11-02

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EP91100220A Expired - Lifetime EP0424361B1 (de) 1988-12-14 1989-11-22 Einrichtungen zum Begrenzen des Flüssigkeitsstromes, insbesondere für die Beutelherstellung aus weichem Material, insbesondere aus Kunststoff
EP89403216A Expired - Lifetime EP0375479B1 (de) 1988-12-14 1989-11-22 Verfahren zum Herstellen von Beuteln aus geschmeidigem Material, insbesondere aus Kunststoff, und Vorrichtung zum Ausführen dieses Verfahren

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EP89403216A Expired - Lifetime EP0375479B1 (de) 1988-12-14 1989-11-22 Verfahren zum Herstellen von Beuteln aus geschmeidigem Material, insbesondere aus Kunststoff, und Vorrichtung zum Ausführen dieses Verfahren

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EP (2) EP0424361B1 (de)
DE (2) DE68919222T2 (de)
FR (1) FR2640193B1 (de)

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EP0009521A1 (de) * 1978-09-29 1980-04-16 Peter John Niccolls Verbesserungen an Maschinen für das Anbringen von Säcken auf Füllmundstücke von Sackfüllmaschinen
JPS55154202A (en) * 1979-05-22 1980-12-01 Kawatetsu Keiryoki Kk Method and device for packing merchandise in bag
FR2590520B1 (fr) * 1985-03-20 1987-11-20 Decomatic Sa Procede de fabrication de sacs en matieres souple notamment plastique, dispositif pour la mise en oeuvre de ce procede et sacs obtenus

Also Published As

Publication number Publication date
EP0424361A3 (en) 1991-09-18
EP0424361A2 (de) 1991-04-24
DE68913023D1 (de) 1994-03-24
EP0375479A1 (de) 1990-06-27
FR2640193A1 (fr) 1990-06-15
EP0375479B1 (de) 1994-02-09
DE68919222D1 (de) 1994-12-08
DE68919222T2 (de) 1995-03-23
FR2640193B1 (fr) 1994-06-03
DE68913023T2 (de) 1994-05-19

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