EP2049327A1 - Procédé de fabrication de sachets d'emballage avec une zone de fond renforcée ainsi que dispositif de réalisation du procédé - Google Patents

Procédé de fabrication de sachets d'emballage avec une zone de fond renforcée ainsi que dispositif de réalisation du procédé

Info

Publication number
EP2049327A1
EP2049327A1 EP07763957A EP07763957A EP2049327A1 EP 2049327 A1 EP2049327 A1 EP 2049327A1 EP 07763957 A EP07763957 A EP 07763957A EP 07763957 A EP07763957 A EP 07763957A EP 2049327 A1 EP2049327 A1 EP 2049327A1
Authority
EP
European Patent Office
Prior art keywords
adhesive
folding
packaging bag
bag
film web
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.)
Withdrawn
Application number
EP07763957A
Other languages
German (de)
English (en)
Inventor
Tiziano Colla
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.)
Water-Line SA
Water Line SA
Original Assignee
Water-Line SA
Water Line 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 Water-Line SA, Water Line SA filed Critical Water-Line SA
Publication of EP2049327A1 publication Critical patent/EP2049327A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives
    • 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
    • B31B2160/102—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from essentially rectangular sheets
    • 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
    • B31B70/008—Stiffening or reinforcing
    • 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
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/261—Folding sheets, blanks or webs involving transversely folding, i.e. along a line perpendicular to the direction of movement
    • 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
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/52—Folding sheets, blanks or webs by reciprocating or oscillating members other than plungers and dies, e.g. by fingers

Definitions

  • the present invention relates to the field of production of packaging bags. It relates to a method for producing packaging bags, in particular with reinforced bottom area, as well as a device for carrying out the method.
  • a film material is both single-layered and multilayer material is used in which, for example, films made of different plastics can be combined with intermediate aluminum foil.
  • a film tube is formed, which is usually provided with gussets.
  • transverse welds are introduced at regular intervals, which form the bottom of the subsequent packaging bag.
  • FIGS. 6 and 7 Such a packaging bag with bottom reinforcement is shown in simplified form in FIGS. 6 and 7.
  • the packaging bag 30 has a front side 34 and a back side 35, as well as gussets 36 and 37.
  • a folding section 21 is folded back along a fold line 22 and glued to the back 35 of the packaging bag 30.
  • a filling opening 31 can be seen, through which the bag can be filled or emptied.
  • the opening can be reclosed, e.g. be formed by means of a so-called zipper.
  • an adhesive application 33 of a hot melt or hot melt adhesive is usually used, which is applied to the back 35 of the packaging bag 30 parallel to the fold line 22, ie across the bag, and over the entire width of the packaging bag 30.
  • the spiral adhesive application 33 is produced with a fine adhesive nozzle, which is guided in a circular movement across the entire width of the bag. is the adhesive application 33 completed, the folding section 21 is folded over and pressed onto the adhesive application 33.
  • the described type of soil reinforcement or the adhesive application has disadvantages that are particularly in the lack of durability of the bond or the lack of mechanical strength are sought:
  • the situation is different in the connection between the adhesive application 33 and the inside of the folded folding section 21.
  • the application of the adhesive to the packaging bag takes a comparatively long period of time, because the application of adhesive extends over the entire width of the bag. As a result, the already applied adhesive cools down before the adhesive application is completed. Further, an outer skin is formed on the surface of the adhesive, which has a lowered adhesiveness.
  • the pot life (service life) of the adhesive is often exceeded due to the long time when applying the adhesive.
  • the folding section 21 can be detached from the packaging bag by hand without much effort. It was also found that the adhesive adhered only on the side to which it was applied. It then comes to a bond between the adhesive layer 33 and the film of the folding portion 21, which is more similar to a pressure-sensitive adhesive and runs without intimate connection between the adhesive and the film.
  • the folding section 21 can then be subjected to increased load - e.g. during filling, or when its slightly protruding outer edge catches behind a projection - thus loosening the intended effect of the soil reinforcement.
  • a paper bag which is formed substantially as a folded bag with taped seams.
  • the bottom area of the Paper bag can be folded over, wherein the fold can be bonded to the surface of the paper bag.
  • the disadvantage is that the paper bag is weakened by the same in the area of the adhesive application. In particular, the paper bag can tear in the area of the adhesive application.
  • an apparatus for carrying out the method should be specified.
  • a method or a device is to be specified which accelerates the process of producing a soil reinforcement.
  • the time between the beginning of the adhesive application and the folding of the folding section should be reduced.
  • Folded section along a transverse fold line is folded upwards and glued to the packaging bag.
  • an adhesive is applied to at least one of the two surfaces to be bonded.
  • the adhesive used is a hot-melt adhesive. According to the invention, the adhesive is applied approximately simultaneously in the form of a plurality of adhesive sections.
  • the essence of the invention is to make the adhesive application, in particular using multiple distributed adhesive nozzles so that the time for the adhesive application can be reduced.
  • the bonding can be done very quickly after application of the adhesive and the applied adhesive can intimately connect with both surfaces to be bonded.
  • Bonding is achieved with high mechanical strength, because the adhesive adheres to both surfaces to be bonded due to the short time between application and bonding with both surfaces.
  • the adhesive portions are spaced from each other. This is advantageous because it allows the adhesive to be applied in a short time.
  • the adhesive portions may be disposed adjacent to each other or overlapping.
  • a durable and durable bonding is achieved in that the application of the adhesive and the subsequent folding of the folding portion is carried out so that the adhesive substantially over the entire length of the adhesive application, ie the adhesive portion, connects to the two surfaces to be bonded.
  • the adhesive is applied in the form of a plurality of individual, distributed over the width of the packaging bag, arranged short sections, wherein preferably each of the adhesive portions or portions of the adhesive application is assigned its own adhesive nozzle.
  • the sections or adhesive sections have the form of adhesive beads, wherein for applying the adhesive beads of the packaging bag and / or the adhesive nozzles are moved.
  • the adhesive beads may preferably extend approximately or exactly transversely to the bag longitudinal direction. But you can also run obliquely to the bag longitudinal direction.
  • the adhesive beads can also cross the fold line.
  • the sections have the form of glue dots.
  • Another embodiment of the method according to the invention is characterized in that the adhesive is applied to both surfaces to be bonded in such a way that adhesive deposits of both surfaces come to rest on one another during folding, in particular congruently. As a result, a particularly good adhesive bond is obtained.
  • the folding section is folded over and pressed onto the packaging bag, the adhesive application and the subsequent folding and pressing of the folding section preferably taking place in a time interval of a few tenths of a second.
  • Another embodiment of the method according to the invention is characterized in that the individual packaging bags are cut off from a continuous tubular film web, which is transversely welded upstream of the subsequent separation points, and the free end of the film web is first transported into the position intended for the adhesive application and is held there, that then the packaging bag is separated from the film web, and that applied immediately after the separation of the adhesive and the folding section is folded over.
  • a further development is characterized in that the free end of the film web rests in the position provided for the adhesive application with the underside on a holding device and is held there by means of negative pressure, freeing the free end of the film web in the position intended for the adhesive application with the folding section projects beyond the holding device, and that the freely projecting folding section is folded over the entire width along the fold line by means of a pivotable folding device.
  • an adhesive device and a folding device in particular a floor treatment unit, are arranged one behind the other in the transport direction along a transport plane.
  • the folding device is for folding over a folding portion of the packaging bag to be produced, and immediately before the folding device, the adhesive device is provided with a plurality of distributed adhesive nozzles.
  • the adhesive nozzles are designed for approximately simultaneous application of a hot-melt adhesive for a plurality of adhesive sections.
  • An embodiment of the device according to the invention is characterized in that within the soil treatment unit in the region of the adhesive nozzles a negative pressure holding device is provided which sucks the film web lying on it during processing and holds, and that above the holding device holding-down are arranged, which hold down the film web at the edges on the holding device.
  • Another embodiment of the device according to the invention is characterized in that the distance between the cutting unit and the processing unit in the transport direction is adjustable, and that between the two units a length-adjustable, first belt-shaped transport device is arranged.
  • a second belt-shaped transport device is provided with two parallel belts, between which the finished packaging bags are transported compressed.
  • the folding device comprises a pivotable beam arranged transversely to the transport direction.
  • the adhesive nozzles can be mounted stationary in the inventive device above the transport plane; But they can also be mounted movable above the transport plane in the transverse direction.
  • Fig. 1 in several sub-figures Fig. 1A to 1F in the side view in a greatly simplified form various steps in the production of packaging bags with bottom reinforcement according to a preferred embodiment of the invention
  • FIG. 2 is a plan view from above of an adhesive application in the form of a plurality of transverse adhesive beads according to an embodiment of the invention
  • FIG. 3 shows the configuration of FIG. 2 after the folding section has been folded over
  • Fig. 4 in plan view from above an adhesive application in the form of several obliquely or extending in the longitudinal direction
  • Adhesive beads according to another embodiment of the invention.
  • Fig. 5 in plan view from above an adhesive application in the form of several adhesive dots according to another
  • FIG. 6 in perspective side view of a packaging bag with
  • Fig. 8 shows a preferred embodiment of a device according to the
  • FIG. 9 shows the device from FIG. 8 in a perspective illustration
  • FIG. 10 shows, in a representation comparable to FIG. 8, the device viewed from the other side, wherein the distance between the cutting unit and the processing unit is set at a maximum
  • FIG. 11 shows, in a somewhat simplified representation comparable to FIG. 9, the device with maximum distance between the cutting unit and the processing unit.
  • FIG. 12 is a perspective view of another embodiment of a soil treatment unit according to the invention.
  • Fig. 1 shows in several sub-figures Fig. 1A to 1 F in the side view in a greatly simplified form various steps in the production of packaging bags with bottom reinforcement according to a preferred embodiment of the invention.
  • the device 10 for producing a packaging bag according to FIG. 1A comprises a cutting unit 12 and a Soil processing unit 11, which are arranged along a horizontal transport plane 13 in a row. Between the two units 11 and 12, a transport device 15 is provided in the form of a belt running on rollers. The transport device 15 is omitted in the subfigures 1C to 1F for clarity.
  • the left-hand roller of the transport device 15 is part of a pair of rollers 16 with the aid of which the film web (20 in FIG.
  • the transport device 15 is then correspondingly adjustable in length.
  • a knife 14 is provided, with each of which a packaging bag is separated from the continuous film web 20.
  • the blade 14 is indicated schematically in FIG. 1 as a knife bar cutting from top to bottom.
  • the knife is designed as a transversely movable knife arranged below the transport plane 13, which transversally cuts through the film web 20 and thereby dips into the groove of a clamping bar (41 in FIG. 8) from above presses on the film web 20 and this fixed.
  • the transport plane 13 runs over a behind the pair of rollers 16 arranged holding device 18, which is supplied with negative pressure and on the top suction openings (38 in Fig. 2), can be sucked by the negative pressure overlying the film web 20 and fixed ,
  • a transversely extending row of a plurality of spaced adhesive nozzles 17 is provided, through which a suitable hot-melt adhesive, which is supplied via not shown heated or thermally insulated feeds, can be sprayed onto the upper side of the film web 20.
  • a folding device 19 In the transport direction (from right to left) behind the holding device 18, a folding device 19 is placed, which comprises a transverse bar, which due to a hinge mechanism (48 in Fig.10) while maintaining its orientation upwards, the holding device 18 and on the holding device 18 can be pivoted down (see Fig. 1D to 1F).
  • the folding device 19 folds a folding section 21 projecting beyond the holding device back onto the film web 20 in order there to form the bottom reinforcement of the next packaging bag by bonding to one side of the film web 20.
  • the (continuous) film web 20 by means of a (not shown) transport device right before the cutting unit 12 (42 in Fig. 8, 9), the transport device 15 and by means of the roller pair 16 with its free end through the cutting unit 12 so far forward in the processing unit 11 in that it protrudes with a track portion of predetermined length, which corresponds to the folding portion 21, over the holding device 18 ( Figure 1B).
  • the pair of rollers 16 is operated with a relation to the transport device 42 by about 1% higher speed, so that the film web is always pulled taut.
  • the section of the film web 20 provided for the next packaging bag can be introduced into the processing unit 11 with high positioning accuracy and without slipping.
  • a sensor is arranged, which detects the presence of the film web and gives corresponding signal to the control of the processing unit 11.
  • the nozzle assembly can be moved in different directions, whereby correspondingly formed and oriented adhesive beads arise (see Fig. 2-4).
  • an adhesive bead is essentially understood an adhesive application along a predetermined contour.
  • the contour can be understood, for example, as a straight line, as a continuous line or as a point. But it can also be a combined movement of the nozzles 17 and the film web 20 are provided to achieve a certain adhesive application. In this case, the film web would be the adhesive application is not fixed by vacuum. Due to the arrangement of a plurality of adhesive nozzles 17, a plurality of adhesive beads or adhesive portions can be applied approximately simultaneously.
  • Such individual adhesive sections do not extend over the entire width of the bag, but over a plurality of smaller sections or adhesive sections.
  • the almost simultaneous application can be carried out simultaneously or at different times for all adhesive sections.
  • the term "offset in time” is understood to mean that the adhesive application is to be started for all adhesive sections within a certain period of time. In particular, the time period should not exceed the time required for the application of an adhesive portion.
  • the adhesive portions are adjacent or spaced apart or overlapping each other. This depends on the length of the adhesive section. If the adhesive portions are adjacent to each other, the two adjacent adhesive portions touch. In the spaced apart arrangement, there is a gap between the adhesive sections without adhesive. In the overlapping arrangement, the adjacent adhesive portions overlap.
  • the folding section 21 projecting beyond the holding unit 18 is folded upwards along the fold line 22 by means of the pivotable folding device 19 and pressed from above onto the film web.
  • the fold line 22 may already be predetermined by a score line or bead, which has been introduced in advance in attaching the transverse welds in the film web 20, and facilitates the folding. For example, it is conceivable to make the score line or bead with a preheated beam.
  • the preheated bar can easily deform the bags 30 in the desired section.
  • the bar-shaped folding device 19 engages under the folding section 21 at the beginning of the pivoting operation and moves upward (FIG.
  • Figs. 2-5 3 Some of the most preferred types of adhesive application are shown in Figs. 2-5 3 three adhesive beads 25 are produced from three juxtaposed and transversely moving to the transport direction adhesive jets or adhesive jets at rest film web, which then at three points gluing the folding portion 21 with the film web 20 and the already cut packaging bag section effect (Fig. 3).
  • the adhesive nozzles 17 may return to their original position after application of the adhesive beads 25 for the next adhesive application. It is even easier if the adhesive nozzles are moved back during an adhesive application and back again during the next subsequent adhesive application.
  • oblique adhesive beads 26 can be applied according to FIG.
  • the oblique course can be generated either by a corresponding method of adhesive nozzles 17 or adhesive jets, or by appropriate superposition of two orthogonal movements of the adhesive nozzles 17 (adhesive jets) and the film web 20 itself.
  • the adhesive application can optionally be effected before and / or behind the fold line 22. If analog adhesive beads 27 are also applied on the other side of fold line 22, crossed adhesive webs are produced after folding. The adhesive beads on both sides of the fold line 22 may also be oriented so that they lie exactly on top of each other after folding. In this way, the adhesive beads are optimally anchored in the film material, and when folding connects directly to the adhesive of the superimposed adhesive beads.
  • Adhesive nozzles 17 extending in the transport direction in the longitudinal direction to produce adhesive beads 28, which can also extend beyond the fold line 22 away. These adhesive beads 28, of which only one is shown by way of example in FIG. 4, can be exposed at the fold line 22. If they are guided to the outer edge of the folding portion 21 and on the other side of the fold line 22 insert accordingly early, so the soil reinforcement can be glued over the entire gain range.
  • glue dots 29 instead of or in addition to elongated adhesive beads of the type shown in FIGS. 2 and 4.
  • These glue dots 29 may be arranged in a straight line as shown in FIG. 5; however, they can also be distributed over the width of the film web 20 in another configuration (eg along a zig-zag line).
  • the glue dots 29 can be applied even faster than the adhesive beads.
  • the adhesive nozzles 17 may also be movable in the vertical direction (see FIG. 11).
  • FIG. 8 A preferred embodiment of a device according to the invention is shown in Fig. 8 (and Fig. 10) fragmentary in side view.
  • the main parts of the device have already been shown schematically in FIG.
  • the device 10 is constructed on a subframe not shown in detail, which, inter alia, allows the displaceability of the cutting unit 12 relative to the processing unit 11 to adapt to different bag lengths (in Fig. 8, the minimum distance between cutting unit 12 and processing unit 11 is set; Transport device 15 arranged between cutting unit 12 and processing unit 11 is received by a movable arrangement of deflection rollers provided below the device; in FIG. 10, the maximum distance is set).
  • the uncut, continuous film web is transported from the right by means of a directly before the cutting unit 12 arranged first drive unit 42, which is equipped with a motor-driven roller pair, through the cutting unit 12 passes into the processing unit 11, where the end of the film web from the pair of rollers 16 received and is further transported to the holding unit 18 and shortly thereafter.
  • To the holding unit 18 extends from below coming a plurality of vacuum lines 47, which via arranged in the holding unit 18 valves to the intake ports 38 (in Fig. 2 are two examples drawn) lead, whose function has already been described above.
  • a total of 8 adhesive nozzles 17 are uniformly spaced from each other for two film webs to be processed side by side, ie four nozzles each for a film web, as shown in FIG two nozzles for two webs available), which are supplied by thermally insulated adhesive feeds 43 with the hot melt adhesive.
  • the adhesive nozzles 17 themselves are heated and controlled by a valve located immediately behind the nozzle.
  • the adhesive nozzles 17 are mounted stationary. Of course, they can also be designed to be movable transversely.
  • the roller pair 16 not only guides the film web to the holding device 18, but also transports the cut and finished bag on the bottom to a subsequent transport device 39, where the bag between two parallel belts 45, 46 pressed for subsequent treatment (control, packaging, etc.). ) is transported. By compressing the bags between the bands, the bonding process in the bottom area is mechanically supported until the hot glue has cooled sufficiently.
  • the two belts 45, 46 are driven by a second drive unit 40. Both the two bands 45, 46 and the band 44 are subdivided into a multiplicity of separate subbands, as can be seen in FIGS. 9 and 11.
  • Figures 12 and 13 show another embodiment according to the present invention. Identical parts are provided with the same reference numerals. Furthermore, features of the preceding embodiments be combined with each other and with this further embodiment as desired to new embodiments.
  • the arrow T represents the transport direction.
  • the device further comprises a hold-down device 100.
  • the hold-down device 100 comprises a drive 101, a coupling element 102, a transmission rod 103, a plurality of fastening elements 104 and hold-downs 105 fastened thereto.
  • the drive 101 which is here as a pneumatic cylinder is shown, brings a movement via the coupling element 102 on the transmission rod 103.
  • the coupling element 102 is moved due to its storage in a pivoting movement.
  • the transmission rod 103 is moved.
  • the fasteners 104 are mounted stationary or movable.
  • Each of the fastening elements 104 comprises a hold-down 105, which projects in the direction of the splice spot 125.
  • the hold-down 105 is preferably designed as a flexible sheet, in particular made of spring steel.
  • the hold-down 105 may also be referred to as finger-shaped design.
  • a hold-down device 100 is preferably placed in each case.
  • the hold-down 105 protrudes into a region between two adhesive sections or splices 125, so that the hold-down 105 does not come into contact with the adhesive.
  • the drive of the hold-down device is actuated with the retraction of the bag in the soil working unit 11.
  • the hold-downs 105 protrude into the region of the folding portion 21 of the bag and press the bag against the transport plane 13.
  • the drive of the hold-down device is actuated again and the hold-down drive against the transport direction of the device the space between the bag and folding section 21 back with a pivoting movement.
  • FIGS. 12 and 13 Also shown in FIGS. 12 and 13 is a further embodiment of the folding device 19.
  • the folding device 19 shown here comprises a folding beam 190, which is connected to the left and right of the transport direction with a folding lever 191.
  • the folding lever 191 is driven by an unillustrated servomotor.
  • the folding lever 191 performs a rotational movement, and thus moves the folding beam 190 in the direction of the folding portion 21 of the bag. In the further movement of the folding section 21 is taken and folded in the direction of splices and pressed there.
  • the folding beam can be adjusted depending on the thickness of the bag material to be folded.
  • the folding beam is moved along the arrow F.
  • Other alternative folding types or folding devices are also conceivable.

Landscapes

  • Making Paper Articles (AREA)

Abstract

Pour un procédé de fabrication de sachets d'emballage (30) en film plastique, une section du sachet d'emballage disposée au niveau d'une extrémité du sachet d'emballage (30) est repliée vers le haut comme section pliante (21) le long d'une ligne de pliage (22) s'étendant transversalement et collée au sachet d'emballage (30). Avant le repliage, une colle est appliquée sur au moins l'une des deux surfaces à coller. Une colle à chaud est utilisée comme colle. Selon l'invention, la colle est appliquée à peu près en même temps sous la forme d'une pluralité de sections de colle (25,.., 29, 125).
EP07763957A 2006-07-27 2007-07-20 Procédé de fabrication de sachets d'emballage avec une zone de fond renforcée ainsi que dispositif de réalisation du procédé Withdrawn EP2049327A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH12252006 2006-07-27
PCT/CH2007/000357 WO2008011740A1 (fr) 2006-07-27 2007-07-20 Procédé de fabrication de sachets d'emballage avec une zone de fond renforcée ainsi que dispositif de réalisation du procédé

Publications (1)

Publication Number Publication Date
EP2049327A1 true EP2049327A1 (fr) 2009-04-22

Family

ID=37496862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07763957A Withdrawn EP2049327A1 (fr) 2006-07-27 2007-07-20 Procédé de fabrication de sachets d'emballage avec une zone de fond renforcée ainsi que dispositif de réalisation du procédé

Country Status (3)

Country Link
US (1) US20100022375A1 (fr)
EP (1) EP2049327A1 (fr)
WO (1) WO2008011740A1 (fr)

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CN103909682A (zh) * 2014-03-20 2014-07-09 温州锐志包装机械有限公司 纸袋成型机
CN103909679A (zh) * 2014-03-20 2014-07-09 温州锐志包装机械有限公司 一种纸袋机

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GB2513661B (en) * 2013-05-03 2016-03-16 Dyson Technology Ltd Vibration isolation mount
WO2015026349A1 (fr) * 2013-08-22 2015-02-26 Tan Daniel Brian Couture de sac renforcée, procédé et appareil de fabrication de celle-ci
ITBO20130660A1 (it) * 2013-11-29 2015-05-30 Emmeci Spa Apparato per incollare sbozzati di carta destinati al rivestimento di scatole di carta o cartone
WO2016176540A1 (fr) * 2015-04-29 2016-11-03 Graphic Packaging International, Inc. Procédé et système de formation d'emballages
MX2017013718A (es) 2015-04-29 2018-03-02 Graphic Packaging Int Llc Metodo y sistema para formar paquetes.
CN107848723B (zh) 2015-07-14 2020-09-22 印刷包装国际有限责任公司 用于形成包装的方法和系统
IT201700052968A1 (it) * 2017-05-16 2018-11-16 Mobert Srl Dispositivo e metodo di piegatura del fondo di una busta a fondo piatto
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