EP0376007B1 - Machine de fabrication de sacs à porter à poignées incorporées et pièces de renforcements en matière thermoplastique soudés autour de celles-ci - Google Patents

Machine de fabrication de sacs à porter à poignées incorporées et pièces de renforcements en matière thermoplastique soudés autour de celles-ci Download PDF

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Publication number
EP0376007B1
EP0376007B1 EP89122445A EP89122445A EP0376007B1 EP 0376007 B1 EP0376007 B1 EP 0376007B1 EP 89122445 A EP89122445 A EP 89122445A EP 89122445 A EP89122445 A EP 89122445A EP 0376007 B1 EP0376007 B1 EP 0376007B1
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EP
European Patent Office
Prior art keywords
foil
reinforcement
feed
bands
sheeting
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
EP89122445A
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German (de)
English (en)
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EP0376007A1 (fr
Inventor
Franz Bochtler
Wilhelm Ley
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.)
STIEGLER GmbH MASCHINENFABRIK
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STIEGLER GmbH MASCHINENFABRIK
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    • 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
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/876—Forming integral handles or mounting separate handles involving application of reinforcement strips or patches; involving reinforcements obtained by folding
    • 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

Definitions

  • the invention relates to a machine for producing carrier bags made of thermoplastic double-layer plastic film web with grip holes formed by cuts in the film layers and the grip holes surrounding reinforcement labels made of films made of thermoplastic plastic and welded to the inside of the film layers, with an unwinding device for the film web, possibly a folding device for Manufacture of double-layer film web, a web feed device for the continuous removal of the film web on the inlet side and step-by-step feed on the outlet side, a feed device controlled synchronously with the feed of the film web for the reinforcement labels to be cut off in sections from two film strips for welding to a film layer each with a band unwinding device with feed unit for the film strips, a separating plate arranged between the two film layers for spacing the two above one another transversely to Feed direction of the film web of film tapes that can be fed and a cutting device for separating the reinforcement labels from the film tapes, one around an axis perpendicular to the direction of advance of the film web, rotating turntable synchronously with the step feed
  • the invention has for its object to improve the known machine with feeder for the reinforcement label, so that always an accurate and flawless storage of the reinforcement label takes place on the turntable and thus higher production speeds can be achieved. Continuous operation of the machine with avoidance of empty cycles, i.e. suspension of the advance of the film web is to be made possible.
  • the invention solves this problem by developing the feed device for the film strips Reinforcement label to be cut in such a way that grooves running on the top and bottom in the direction of advance of the film strips, that a drivable feed roller provided with annular grooves is assigned to the top and bottom of the partition and each with one arranged in the partition and with annular grooves equipped counter roller cooperates in such a way that the grooves of the preferred roller and the grooves of the counter roller face each other and form nip chambers, which are aligned with the grooves of the separating plate and through the grooves and through the nip chamber each a comb rod is arranged cantilevered, and the pull-through gap for the film strips are formed between the areas of maximum diameter of the preferred roller and counter-rollers and the course forced by the comb rods in the nip chambers, as a result of which a corrugated outlet gap for the film strips transversely to the direction of advance of the film strips is formed and, viewed in the direction of advance after the end
  • the feed device for the production of the reinforcement sheet is designed so that the foil strips from which the reinforcement sheet is formed are corrugated, in such a way that the apex lines of the wave crests and valleys run in the longitudinal direction and parallel to the direction of advance of the foil strips , which gives the film strips greater rigidity and, when leaving the separating plate and feeding them onto the turntable, they can be pushed forward to the pick-up position on the turntable without any buckling.
  • the reinforcement label is cut off when the feed of the film tapes stops and the rotary plate comes to a standstill, i.e. the corrugated ends of the film tapes are cut using a knife for the upper and lower film tape .
  • comb rods are guided in the grooves in a self-supporting manner and are held in a comb back at the end which projects beyond the wedge-shaped region of the separating plate.
  • the comb rods are also adjustable in this holder.
  • each knife is fastened to a knife bar that is vertically movable on guide rods, that a hold-down plate is resiliently attached to the knife bar, the surface of which is ribbed or grooved parallel to the direction of advance of the reinforcement label, and which is slightly above the knife edge protrudes towards the mounting plate of the turntable.
  • This configuration of the device ensures that when the cutter bar moves vertically to separate the reinforcement label from the film strip, the hold-down plate first hits the corrugated film strip end that rests on the turntable, presses it smoothly and holds it in place, and then the cutting process is carried out.
  • the hold-down plate In order to enable the subsequent holding plate to be lifted off properly from the cut-off reinforcement label lying on the turntable and sucked onto it by means of a vacuum passed through the turntable, the hold-down plate is ribbed.
  • the drives required for the film feed, the cutting of the reinforcement label, the movement of the turntable and the welding of the reinforcement label to the film layers required by the feed device is carried out by a driven shaft - an input shaft - either from the main drive of the machine that controls the feed of the film web, is driven or is driven by a separate drive motor.
  • the feed device for the reinforcement labels it is proposed to arrange the feed device for the film strips so as to be displaceable parallel to the feed direction of the film web.
  • the individual drives for the feed rollers and unwinding device for the film web feed, the lifting movement of the knives for cutting off the reinforcement labels from the film strips via a crank disk and lever linkage, the turntable with stepping gear and the lifting movement of the welding stamps from the driven countershaft for welding the reinforcement labels are branched off via cam and lever linkage.
  • the feed device is to be put out of operation while the machine is running or the machine requires empty cycles for certain storage systems of the produced carrier bags, the supply of the reinforcement labels must be interrupted for the time of the empty cycles.
  • a pneumatically operable single-speed clutch is arranged before the individual drives branch off for the various functions of the feed device. It can be provided on the countershaft and switches the feed device off completely when actuated, i.e. that the turntable, the welding devices, the knives and the feed for the film strips are switched off. When the machine is started again, the clutch engages suddenly.
  • carrier bags 2 according to FIG. 3 can be produced from plastic film webs 1.
  • the carrier bags can be provided with an inserted bottom fold 5 on the bottom, have welded side seams 6, and in the area of the pocket opening the grip holes 4, which are arranged inside the pocket 2, see FIGS. 3a to c and on the inside of welded-on reinforcement sheets 3 made of thermoplastic film are surrounded.
  • the grip holes 4 can also be arranged on a part which projects beyond the pocket opening from the inside and is welded on to the walls of the pocket 2, reinforcement sheets 3, see FIG. 3d, e.
  • the film web 1 and 2 can be used with one lane for the production of carrier bags 2 or also with two lanes, ie for pairwise production of carrier bags 2 with the appropriate equipment.
  • the film web 1 is continuously pulled off the film roll 10 and passed over a folding triangle 11 and folded in half, the folding edge, which corresponds to the bottom edge of the carrying bag, running in the machine and the film edges along one Side edge. If the carrier bag is to be formed with a bottom fold, this can be done by guiding the folded film web through the folding device 13. Thereafter, the film web is guided via a driven pair of feed rollers 16 into the feed compensation device 15, which serves as a store for the stepwise stepwise feed of the film web on the output side.
  • the double-layer film web 1 is now transported in cycles by a pocket width and passes through the feed station 20, in which the reinforcement labels 3 are welded to the inside of the film layers of the film web in the area of the later grip hole.
  • the finger hole is then punched with the punch 17.
  • Correction rollers 18 for the length adjustment of the repeat according to the pocket width and a further driven pair of preferred rollers 19 are used to feed the film of a separating welding device with, for example, a separating welding knife 23 and a counter weld roller 26 via the driven pair of feed rollers 22 fed.
  • a storage rack 31 formed by circumferential bands or cords and are lifted from the rotating rotating suction arms 24 of a subsequent impeller 14 and on the storage device 27 at the closest storage place with receiving posts 29 are stored in a stack 2a.
  • the storage spaces are conveyed further in the direction of arrow P 2 by means of a conveyor belt 28 which is moved step by step.
  • the machine is equipped with a control panel 25 arranged on a swivel arm.
  • the impeller rotates in the direction of arrow P3.
  • the pre-welding device 21 is adjustable on traverses transverse to the feed direction T of the film web in accordance with the pocket length.
  • the machine also includes a blower, not shown, for generating the vacuum for the suction arms 24 of the impeller 14. 30 designates a collecting container for the punching waste of the grip hole.
  • the film web 1 is continuously withdrawn from the film roll 10 up to the feed compensation device 15 and from there it is transported step by step in each case by a pocket width, the feed device 20, the punching machine 17, possibly the feed welding device 21 and the separating welding device 23 being intermittently during the standstill of the feed. 26 work.
  • the basic structure of the feed device 20 for the reinforcement label 3 is shown in FIGS. 5 to 7.
  • the superimposed film layers 1a, 1b of the folded film web are guided past the feed device 20 in the transport direction T.
  • the feed device contains the turntable 200, which is rotatable step by step in the direction of rotation R about an axis X running perpendicular to the feed direction T and is driven by a step gear 52.
  • the turntable 200 is arranged on the side of the film web 1 on the machine in such a way that it projects with a section between the two film layers 1a, 1b.
  • the feed device 20 including the turntable 200 and the step mechanism 52 is mounted on a frame 32 and, if necessary, can be displaced in the direction of the arrow Z parallel to the feed direction T, corresponding to the position of the turntable with a variable pocket width to be able to change.
  • Either a drive derived from the main drive of the machine via a drive shaft or a separate drive is provided for driving the feed device, each of which drives an intermediate shaft 33, also referred to as a countershaft 33.
  • the individual drives for the various functions of the feed device 20 are derived from the countershaft 33.
  • the feed device 20 has to fulfill several functions, namely from the generation of the reinforcement label 3 to the welding of the same to the foil layers. This is explained with reference to FIGS. 5 to 7, in particular FIG. 6.
  • Two reinforcement labels 3 are required for the top and bottom foil layer. These can be produced, for example, from film strips 40a, 40b fed in parallel one above the other by simultaneous cutting.
  • the two film strips 40a, 40b can be drawn off from a film strip roll 35, for example, by double winding or, for example, by subsequently cutting open a tube.
  • the film strips 40a, b can be driven, for example, from the intermediate shaft 33 via a crankshaft (crank rod), not shown, to the driven feed roller pair 39.
  • the film strips 40a, 40b are then brought up to the turntable 200 via a wedge-shaped partition plate 41 up to the height of the top and bottom of the turntable.
  • the film strips 40a, 40b are severed in the gap left between the turntable 200 and the separating plate 41, with which the reinforcement label is made.
  • An upper and a lower cutting knife 220 are provided, which are fastened to a knife bar 221, which is also connected to the holding-down device in this way.
  • the vertical movement of the knives 220 is controlled by means of a lever linkage 230 via the cam plate 234 seated on a cam shaft K.
  • the cut-off reinforcement slips placed on the top and bottom of the turntable are vacuumed onto the turntable at their storage location captured.
  • the turntable 200 is then rotated by one position, ie here by 60 °, by means of the step mechanism 52. After 3 cuts, the reinforcement label placed and held on the turntable has arrived in the welding position IV opposite the receiving position 1. Likewise, when the film web and the turntable 200 are at a standstill, the reinforcement label is welded to the adjacent film layer 1a or 1b by closing the upper and lower welding punches 370.
  • the welding punches 370 are arranged to be vertically movable on the welding devices 37a and 37b, and the drive takes place via a further cam, not shown, which sits on the camshaft K and which moves a lever linkage 54 in a controlled manner, which moves the welding punches.
  • the welding devices 37a and 37b are not shown for reasons of clarity.
  • the welding time i.e. the dwell time of the welding stamp 370 can be set.
  • the counter bearing for the welding stamps is formed by the turntable 200.
  • the turntable is rotated again by one position in the direction of the arrow R.
  • the vacuum is switched off in the welding position during welding and the reinforcement label is thus released.
  • the reinforcement label received in loading position I reaches welding position IV after three additional cycles.
  • the turntable can then cool down again until it has returned to the loading position after another three cycles. 2 or 4 positions are also possible.
  • feed rollers 44 are provided in the area of the separating plate 41 and are driven via the feed rollers 39 by means of circulating chain belts 45.
  • 38 means the bearing of the turntable 200. So while the reinforcement labels are cut off from the foil strips when the turntable is at a standstill and the foil strips stand still and the foil web comes to a standstill while the reinforcement labels are welded on and at the same time grip hole punching and cross-cut welding of the carrier bags take place during the Foil web feed of the turntable is moved one position each and the feed of the foil tape is carried out on the turntable. Additional functions are required when the machine is at a standstill, such as lifting the welding punch.
  • slide valves are required in the turntable for sucking in the reinforcement label, ie for applying the vacuum, namely opening a slide valve in the area of loading position I after a new, empty receiving space has been moved in, for example by means of a mechanical stop and closing a slide valve for stopping of the vacuum in the area of the welding position IV, for example by means of a mechanical stop after reaching the welding station through the reinforcement label with the turntable.
  • the feed roller pair 39 is equipped with a brake, not shown.
  • a pneumatically operable claw coupling is provided, which is assigned to the main drive of the feed device 20. With the aid of such a coupling, not shown in detail, the feed device can be switched on and off completely.
  • FIG. 8 shows a detailed construction according to the invention of the knives and hold-down devices of the feed device 20 for the reinforcement labels in a sectional view according to FIG. 6 in approximately 2/3 natural size.
  • the film strips 40a, 40b are brought over the separating plate 41, which is tapered in a wedge shape in the inlet area 41a.
  • the partition plate ends at the height of the turntable 200, between the separating plate 41 and the turntable 200 there remains the immersion gap 211 for the knives 220.
  • the film strips 40a and 40b are brought up on the top 412 or underside 411 of the separating plate and in the feed direction V onto the turntable 200 to the receiving space formed on the edge 210 advanced.
  • a layer 201 of foam rubber on the receiving location including bores in the turntable with connection to a pressure-generating device.
  • vacuum is applied to the receiving location 210 from the side of the turntable, so that the film tapes remain in position when sucked in.
  • the lifting movement in the direction of arrow S is triggered for the knives 220 which are arranged on the top and bottom in front of the turntable, ie one knife for each film strip.
  • the knives 220 are resiliently fastened to the knife bar 221 with screws 223 with the interposition of compression springs 222.
  • the cutter bar is moved up and down on guide rods 229 in the direction of arrow S.
  • the hold-down plates 225 are also resiliently mounted on guide rods 226 with the interposition of compression springs 224 in slide bushes 227 facing the turntable. In the raised state, the hold-down plate 225 protrudes slightly above the knife edge 220 with its lower edge, so that when the knife or knife bar 221 moves in the direction of the turntable 200, the hold-down plate 225 first presses the film strip lying on it, and then the knife cuts the film strip and Forming the reinforcement slip is done.
  • the cutting movement of the knife and hold-down device takes place via the dashed two mutually movable angle levers 231, 232 which engage by means of rollers 233 arranged at their front ends in niches of the cutter bar 221, not shown, and are moved via the lever angle 230, which is controlled by the cam plate 234 .
  • the hold-down devices are grooved on their surface facing the turntable with grooves 228 running in the feed direction V.
  • FIG. 4a is a partial view of the Turntable 200 shown in FIG 5, which can be formed in the area of the receiving locations 210 with a straight or - as shown in dashed lines - circular front edge 207.
  • reinforcement labels 3 are rectangular, see FIG. 3a and in the case of a round end edge 207, reinforcement labels are produced in accordance with FIG. 3b, the knives 220 each following the course of the end edge 207 of the turntable 200, that is to say are straight or curved.
  • Figure 4b shows the section HH of Figure 4a.
  • the holes 206 provided between the individual receiving places 210 serve to reduce the mass.
  • the receiving spaces 210 which are each formed in pairs on the top and bottom, are characterized by a sheet metal plate 202 which is attached and fastened and which is covered on the upper side with a foam rubber layer 201.
  • Channels 203 and a bore 204 are provided in the turntable, to which the vacuum is connected, see also section HH according to FIG. 4b.
  • Small holes 205 lead from the channels 203 to the surface.
  • the slide valves for switching the vacuum on and off are located in the area of the bores 204 outside the receiving locations and are not shown.
  • the hold-down plate 225 does not stick to the reinforcement label when it is lifted off after it has been cut off, it is preferably formed on its surface with grooves 228 which run parallel to the direction of advance V.
  • the bore 204 is closed at the end by means of a sealing plug 218, see also FIG. 9.
  • the rigidity of the foil tapes for the self-supporting feed in this area is increased by corrugation.
  • This is not a permanent corrugation, but a short-term shaping that takes place after the film strips have been placed on the turntable when sucking in and pressing down using the hold-down plates is removed at the latest so that the reinforcement sheets are smooth and level.
  • the apex lines of the shafts or ribs run in the longitudinal extension of the foil strips.
  • plastic films made of thermoplastic, heat-weldable plastics are selected, which can be welded to the film web for the carrier bags.
  • FIGS. 9 and 11 show a construction of the feed device according to FIGS. 5 to 7 in the area of the separating plate 41 with grooves of approximately natural size in two sectional views, with which a longitudinal corrugation of the film strips 40a, 40b, see schematic cross section according to FIG. 10, can be manufactured.
  • the separating plate 41 extends close to the cutting plane of the knives 220 guided in the gap to the turntable.
  • the separating plate is tapered in a wedge shape, in the outlet area the top and bottom of the separating plate are parallel to one another at the same height as the turntable 200 adjoining on the other side of the cutting plane of the knives 220, see also FIG. 8.
  • the separating plate 41 is provided in this area on the top and bottom with grooves 413 running in the direction of advance of the film strips.
  • the film strips 40a and 40b are in these grooves pressed by comb bars 43.
  • the comb rods 43 are cantilevered in parallel in the grooves 413 and are held outside the partition plate 41 in a comb back 42, which is attached to the frame 32.
  • the comb rods 43 end self-supporting with the separating plate 41 or shortly before.
  • again driven feed rollers 44 are provided, which are driven by the feed rollers 39 via chains 45, see FIG. 6.
  • counter-rollers 46 are arranged in the separating plate 41 in the wedge-shaped tapered area Friction are taken. Both the feed rollers 44 and the counter-rollers 46 are grooved, the grooves 441 of the feed rollers 44 being aligned with the grooves 461 of the counter-rollers 46 and forming nip chambers 47 between them.
  • the gap chambers 47 are again aligned in the longitudinal direction with the grooves 413 of the separating plate and the comb rods 43 are also guided cantilevered through these gap chambers 47.
  • the feed takes place in the gap 48 of the film strips 40a and 40b via the frictional engagement.
  • the parts of the film strips 40a, 40b which are guided through the gap chambers 47 or grooves 413 are deformed in an undulating manner in these areas by the comb bars 43 and thus emerge in a corrugated manner at the end of the separating plate 41 and allow a perfect self-supporting feed by pushing onto the rotary plate.
  • the cutting knives 220 By actuating the cutting knives 220 in the direction of arrow S, after the corrugated foil strips have been held in place on the support locations 210, the foil strips are severed on the top and bottom sides of the turntable, and the reinforcement labels 3a, 3b are thus formed.

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  • Making Paper Articles (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Air Bags (AREA)

Claims (5)

  1. Machine de fabrication de sacs à porter fabriqués dans une bande de feuille thermoplastique à deux couches, à poignées incorporées formées par des entailles dans ces couches de feuilles, et à pièces de renforcement en matière thermoplastique entourant les poignées et soudées aux faces intérieures des couches de feuilles, comportant un dérouleur pour la bande de feuille, éventuellement un dispositif de pliage pour réaliser une bande de feuille à deux couches, un dispositif de traction de la bande pour tirer en continu la bande de feuille du côté entrée et la faire avancer par pas cadencés, du côté sortie, un dispositif d'amenée commandé en synchronisme avec le pas d'avance de la bande de feuille pour les pièces de renforcement à sectionner à partir de deux bandes de feuilles pour être soudées à chacune des couches de feuilles, un dérouleur de bande à rouleaux avanceurs pousseurs pour les bandes de feuilles, une plaque séparatrice agencée entre les deux bandes de feuilles pour écarter les deux bandes de feuilles amenées l'une au-dessus de l'autre transversalement au sens d'avancement de la bande de feuille, et un dispositif de sectionnement pour détacher les pièces de renforcement des bandes de feuilles, un plateau rotatif tournant en synchronisme avec le pas d'avance de la bande de feuille autour d'un axe orienté verticalement par rapport au sens d'avancement de la bande, qui s'engage par une section entre les couches de feuilles de la bande de feuille et présente, sur le dessus et le dessous, des empreintes pouvant être mises sous vide pour que les pièces de renforcement s'y déposent et y soient retenues, un dispositif de soudage étant associé, sur le dessus et le dessous, aux empreintes qui s'avancent le plus loin entre les couches de feuilles, pour souder les pièces de renforcement sur les couches de feuilles, et la plaque séparatrice se trouvant disposée à la suite de l'empreinte du plateau rotatif qui se trouve à l'extérieur des couches de feuilles en ménageant une fente permettant à la lame de s'abattre; ainsi qu'un dispositif de découpage pour découper les poignées dans la bande de feuille, et des dispositifs pour souder et sectionner les sacs à porter transversalement au sens d'avancement de la bande de feuille, machine caractérisée en ce que la plaque séparatrice (41) du dispositif d'amenée (20) des pièces de renforcement présente, sur le dessus et le dessous, des rainures (413) qui s'étendent dans le sens de l'avancement des bandes de feuilles (40a, 40b), en ce qu'un rouleau avanceur ultérieur (44) entraîné pourvu de rainures annulaires (441) est associé respectivement à la face supérieure et à la face inférieure de la plaque séparatrice et travaille de concert avec un rouleau complémentaire (46) installé dans la plaque séparatrice (41) et pourvu de rainures annulaires (461), de telle manière que les rainures (441) du rouleau entraîné (44) et les rainures (461) du rouleau complémentaire (46) sont portées en vis-à-vis et forment des compartiments (47) qui viennent en alignement sur les rainures (413) de la plaque séparatrice (41), et en ce qu'une tige-peigne (43) respective est disposée en porte à faux en s'enfonçant à travers les rainures (413) et le compartiment (47), et en ce que la fente de passage (48) pour les bandes de feuilles est formée entre les zones de diamètre maximum des rouleaux avanceurs (44) et des rouleaux complémentaires (46) et entre le passage forcé par les tiges-peignes (43) dans les compartiments (47), ce qui donne forme, transversalement au sens d'avancement des bandes de feuilles, à une fente de sortie ondulée pour la bande de feuille, et en ce qu'une lame (220) qui se lève et s'abaisse transversalement au sens d'avancement des bandes de feuilles est respectivement agencée au-dessus et en dessous du plan de la plaque séparatrice, après la fin de la plaque séparatrice (41), si l'on observe dans le sens de l'avancement.
  2. Machine suivant la revendication 1, caractérisée en ce que la plaque séparatrice (41) s'effile en forme de coin dans la zone d'amenée des bandes de feuilles, en ce que les rouleaux avanceurs entraînés (44) et les rouleaux complémentaires (46) sont agencés dans la section en forme de coin et les tiges-peignes (43) sont fixées à l'autre bout qui passe par-dessus la zone en forme de coin de la plaque séparatrice (41) en sens inverse du sens d'avancement des bandes de feuilles, dans un dos de peigne (42).
  3. Machine suivant la revendication 1 ou 2, caractérisée en ce que chaque lame (220) est fixée sur une barre porte-lames (221) qui évolue verticalement sur des barres de guidage (229), en ce qu'une plaque de serrage (225) est fixée sur la barre porte-lames, avec une aptitude au retour élastique, plaque dont la surface est cannelée ou rainurée parallèlement au sens d'avancement des pièces de renforcement (3) et qui dépasse légèrement du morfil des tranchants des lames dans la direction de la plaque réceptrice (210) du plateau rotatif (200).
  4. Machine suivant l'une des revendications 1 à 3, caractérisée en ce que le dispositif d'amenée (20) est équipé d'un arbre de renvoi (33) entraîné, dont partent des transmissions individuelles
    1. pour les rouleaux avanceurs (39) pour le déroulement des bandes de feuilles (40a, 40b) et l'avance des bandes de feuilles,
    2. pour la course (S) des lames (220) pour sectionner les pièces de renforcement des bandes de feuilles à l'intervention d'un plateau-came et d'un levier,
    3. pour le plateau rotatif (200) à mécanisme pas à pas (52) et la commande des raccords à vide,
    4. pour la course des poinçons de soudage (370) pour souder les pièces de renforcement à l'intervention du plateau-came et du levier.
  5. Machine suivant la revendication 4, caractérisée en ce que l'entraînement du dispositif d'amenée peut être actionné et stoppé au moyen d'un accouplement à un tour actionné par commande pneumatique.
EP89122445A 1988-12-22 1989-12-05 Machine de fabrication de sacs à porter à poignées incorporées et pièces de renforcements en matière thermoplastique soudés autour de celles-ci Expired - Lifetime EP0376007B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8815895U DE8815895U1 (de) 1988-12-22 1988-12-22 Maschine zum Herstellen von Tragetaschen mit Grifflöchern und diese umgebenden angeschweißten Verstärkungszetteln aus thermoplastischem Kunststoff
DE8815895U 1988-12-22

Publications (2)

Publication Number Publication Date
EP0376007A1 EP0376007A1 (fr) 1990-07-04
EP0376007B1 true EP0376007B1 (fr) 1993-05-05

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Family Applications (1)

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EP89122445A Expired - Lifetime EP0376007B1 (fr) 1988-12-22 1989-12-05 Machine de fabrication de sacs à porter à poignées incorporées et pièces de renforcements en matière thermoplastique soudés autour de celles-ci

Country Status (4)

Country Link
US (1) US5069659A (fr)
EP (1) EP0376007B1 (fr)
DE (2) DE8815895U1 (fr)
ES (1) ES2041952T3 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0687633B1 (fr) * 1994-06-17 1998-09-30 Idemitsu Petrochemical Co., Ltd. Sac à poignée et sa méthode de préparation et d'utilisation
DE19751798A1 (de) * 1997-11-24 1999-05-27 Lemo Maschb Gmbh Verfahren und Vorrichtung zum gleichzeitigen Herstellen von jeweils zwei Beuteln, insbesondere Automatenbeuteln aus Doppelfolienbahnabschnitten einer flachgelegten Schlauchbahn
DE10137844B4 (de) * 2001-08-02 2010-02-25 Windmöller & Hölscher Kg Verfahren zur Herstellung von Schlaufengrifftragetaschen
ES2273554B1 (es) * 2005-02-02 2008-03-16 Eficiencia Y Tecnologia, S.A. Maquina y procedimiento para la fabricacion de bolsas flexibles para materiales fluidos.
CN103381672B (zh) * 2013-08-06 2015-10-07 张家口通达纸塑彩印有限公司 一种塑料包装袋扣手热合机
US10035318B2 (en) * 2014-03-05 2018-07-31 Parkdale Incorporated Closure bag with reinforced handles
MX2019004768A (es) * 2016-10-27 2019-07-01 Lemo Maschb Gmbh Mejora en la fabricacion de bolsas de tapa plegable.
CN107116839B (zh) * 2017-05-26 2018-11-20 青岛欧勃亚索罗门包装有限公司 全自动鲜花包装袋制袋机
CN110436038B (zh) * 2019-08-08 2024-06-04 安徽天润医用新材料有限公司 一种一次性灭菌包装纸塑袋及其加工装置

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US2768560A (en) * 1954-06-23 1956-10-30 Strongleaf Paper Corp Apparatus for reinforcing and punching sheets
US3071046A (en) * 1960-04-05 1963-01-01 William H Conant Eyelet reinforcement device
CH470963A (fr) * 1968-04-26 1969-04-15 Ucb Sa Procédé d'application en continu d'éléments de renforcement sur une bande ou gaine en matériau non rigide et appareil pour la mise en oeuvre du procédé
BE791050A (nl) * 1971-11-11 1973-03-01 Vejle Plastic Ved G Werkwijze en inrichting voor het aanbrengen van bladmateriaal op een lengte uit dit materiaal
BE834398A (fr) * 1975-10-10 1976-02-02 Procede pour la fabrication de sacs en matiere thermosoudable, machinepour la mise en oeuvre de ce procede et sacs obtenus
FR2327085A1 (fr) * 1975-10-10 1977-05-06 Printex Procede pour la fabrication de sacs en matiere thermosoudable, machine pour la mise en oeuvre de ce procede et sacs obtenus
CA1206362A (fr) * 1983-12-16 1986-06-24 David C. Piggott Dispositif de fabrication et de separation de sacs
BE899260A (fr) * 1984-03-27 1984-07-16 Fmc Corp Machine a fabriquer des sacs en matiere thermoplastique.
US4735602A (en) * 1984-09-26 1988-04-05 Fmc Corporation Bag stacking method and apparatus
GB8502175D0 (en) * 1985-01-29 1985-02-27 Dimond T J Attaching elements to web

Also Published As

Publication number Publication date
DE8815895U1 (de) 1989-03-16
EP0376007A1 (fr) 1990-07-04
US5069659A (en) 1991-12-03
ES2041952T3 (es) 1993-12-01
DE58904281D1 (de) 1993-06-09

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