EP2832923B1 - Procédé pour la fabrication d'un sac à corde, machine pour la fabrication d'un sac à corde - Google Patents

Procédé pour la fabrication d'un sac à corde, machine pour la fabrication d'un sac à corde Download PDF

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Publication number
EP2832923B1
EP2832923B1 EP13178993.5A EP13178993A EP2832923B1 EP 2832923 B1 EP2832923 B1 EP 2832923B1 EP 13178993 A EP13178993 A EP 13178993A EP 2832923 B1 EP2832923 B1 EP 2832923B1
Authority
EP
European Patent Office
Prior art keywords
permeable
cord
air
water
bag
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.)
Active
Application number
EP13178993.5A
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German (de)
English (en)
Other versions
EP2832923A1 (fr
Inventor
Ralf Klein
Jörg Weitner
Dubravka Frinken
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Individual
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Individual
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Priority to EP13178993.5A priority Critical patent/EP2832923B1/fr
Publication of EP2832923A1 publication Critical patent/EP2832923A1/fr
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Publication of EP2832923B1 publication Critical patent/EP2832923B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • D06H7/02—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials transversely
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16—Cutting 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
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel 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
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B31B70/644—Making seals parallel to the direction of movement, i.e. longitudinal sealing
    • 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
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B31B70/645—Making seals transversally 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
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/813—Applying closures
    • B31B70/8134—Applying strings; Making string-closed bags
    • B31B70/8135—Applying strings; Making string-closed bags the strings being applied in the machine direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/28—Strings or strip-like closures, i.e. draw closures
    • 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
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B31B2155/0014—Flexible containers made from webs by folding webs longitudinally having their openings facing transversally 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
    • 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 method for producing a cord bag.
  • drawstring bags are made of a transparent plastic bag with cords attached to close the cord bag.
  • a transparent plastic material is welded in such a way that a drawstring is formed in which a cord can be accommodated, wherein the cord can be moved along the drawstring relative to the plastic bag.
  • a method for producing a cord bag wherein the bag material is severed by means of a separating device, wherein the separating device is configured such that the separating device divides the folded bag material surrounding the cord and leaves the cord undivided, is made of GB1075968 A or US3079844 A already known.
  • the manufacturing process should be as independent as possible of the bag material and side effects, such as scorching the water and air-permeable bag material, as possible not occur.
  • Kordel milk can be realized, which consist of a water- and air-permeable bag material.
  • cord bags advantageously have a wider scope of use than the plastic cord bags known in the art.
  • plastic cord bags are essentially provided as a stowage device, it is intended for the cord bag according to the invention to receive, for example, ingredients for the food preparation and thus to help in the preparation of the food.
  • tea can be filled into the drawstring bag according to the invention and then brewed tea.
  • uncooked rice and / or a spice mixture is filled and the filled and closed with the cords bag is then used to prepare food.
  • the potential cord bag contents can be individually determined or regulated.
  • the water-permeable and air-permeable bag material is a pulp, in particular a filter paper which is also used, for example, for coffee pods.
  • the water- and air-permeable bag material is fragrant and / or aroma permeable.
  • it is water-and air-permeable bag material having a thickness between 50 microns and 100 microns, preferably about 80 microns.
  • the water- and air-permeable bag material preferably has a porosity between 50 and 5000 l / m 2 s, preferably between 1000 and 2000 l / m 2 s.
  • the water- and air-permeable bag material has a tensile strength greater than 2 N / 15 mm and a tensile strength potential of more than 300 g / 50 mm, preferably more than 400 g / 50 mm. It is conceivable, inter alia, that the filter paper is oxygen bleached.
  • the folding is preferably a turning over of the water-permeable and air-permeable bag material, wherein one or more cords are at least partially enveloped by the folding over.
  • the handling of the water- and air-permeable bag material is preferably carried out so that the edge of the water- and air-permeable bag material on the surface side of the water-and air-permeable bag material, which faces away from the potential filling area of the bag, is arranged.
  • the cord is preferably made of a wool-like material, such as cotton or polyester. But it is also conceivable that the cord is at least partially made of metal or another plastic, such as rubber.
  • a bag bottom can be realized by folding the water-and air-permeable bag material. In particular, the bag material can be folded in such a way that a bottom fold is generated.
  • Such a bottom fold can advantageously be varied simply in size, wherein the size of the bottom fold, the volume of the drawstring bag, ie the filling area, co-determined.
  • the size of the bottom fold is determined by the water- and air-permeable bag material, which lies folded over one another in a direction perpendicular to the main extension plane of the cord bag direction and is not welded or cohesively connected to itself.
  • the separating device comprises a cutting means and a roller with a groove, wherein in the second method step, the folded, water and air-permeable bag material is arranged on the roller with the groove, that when cutting the folded, water and air-permeable bag material with the cutting means the cord is placed in the groove of the roller.
  • the cord can disappear by placing the water and air-permeable bag material on the roller in the groove or the cord disappears in the groove as soon as the cutting means with the water and air-permeable bag material comes into contact.
  • the cutting means presses the cord into the groove during the second method step.
  • the groove is slightly larger than the cord circumference, whereby the cord is prevented from being cut by the cutting means.
  • the roller is rotatable about a rolling axis and is non-rotatable during the second method step. This allows the Roller advantageously support the transport of the folded, water- and air-permeable bag material.
  • Cutting means are to be understood as means which can cause an immediate or delayed release of the water- and air-permeable bag material.
  • a time delay is understood to be the time that elapses between the contacting of the water-permeable and air-permeable bag material with the cutting means and the actual splitting of the water- and air-permeable bag material.
  • the cutting means could also be designed such that the cutting means perforates the water- and air-permeable bag material in such a way that a shearing force, for example by pulling on the water- and air-permeable bag material, leads to the division of the water- and air-permeable bag material.
  • the roller has one or more grooves. Each of these grooves is intended to receive at least one cord during the first process step. This advantageously makes it possible to realize a cord bag which has further drawstrings which are arranged offset in a direction parallel to the main extension plane of the cord bag and offset on one side of the cord bag.
  • the cutting means is a roll cutting knife, wherein the roll cutting blade is movable by means of a linear guide along a cutting direction parallel to the rolling axis and wherein the roll cutting blade is moved over the roll during the second process step along the cutting direction ,
  • the rotary cutting blade is rotatable about an axis of rotation of the rotary cutting blade and is rolled by the movement over the roller.
  • the rotary cutting blade has a blade region or a blade, wherein the blade region or the blade is arranged such that the blade region or the blade during the rolling of the rotary cutter blade with the water and air-permeable bag material in operative connection occurs and thereby the water and air-permeable bag material parts.
  • the blade area or the blade can be designed differently.
  • the blade region or the blade is designed such that after the division of the water- and air-permeable bag material, a structured edge is generated on the later cord bag.
  • the linear guide has a plurality of roll cutting knives. As a result, the water-and air-permeable bag material could be cut at several points during a simultaneous unrolling of the rotary cutting knife.
  • the roll cutting blade is pivotally hinged to the linear guide via a bracket, and wherein the roll cutting blade is movable both forward in a forward motion and rearward in a backward motion along the cutting direction, and wherein the rotary cutting blade in the Forward movement is moved so spaced from the roller along the cutting direction that the water- and air-permeable bag material remains undivided after completion of the forward movement.
  • the rotary cutter is not unrolled during the forward movement. Instead, the rotary cutter is only rolled during the backward movement. Consequently, therefore, the rotary cutting blade is always rotated in the same direction around the axis of rotation of the rotary cutting blade and the blade area or the blade worn as evenly as possible.
  • the roll cutting knife may also be moved such that, during the backward movement, the roll cutting blade is moved along the cutting direction so that the water- and air-permeable bag material remains undivided upon completion of the backward motion while the water- and air-permeable bag material breaks during advancement of the rotary cutting knife becomes.
  • the separating device can be integrated in an advantageous manner into the machine production process of the cord bag.
  • the cord bag is at least partially used to move the bags along the conveying direction.
  • the cord arranged in the drawstring is displaced relative to the bag after dividing the water-permeable and air-permeable bag material such that the cord projects out of the bag, in particular from the drawstring, on both sides along the conveying direction.
  • the dicing of the water and air permeable bag material, the shifting of the cord and the rotation of the roller are synchronized, d. H. coordinated.
  • a bag connection with itself and / or another bag material is generated.
  • the bag connection preferably takes place via a welding process.
  • the bag connection can be realized by an adhesive and / or by welding.
  • drawstrings can be realized which suppress the movement of the cord relative to the bag in a direction different from that dictated by the drawstring itself. This has the advantage that the cord bag can be closed very easily and stably.
  • the water- and air-permeable bag material is connected to another bag material, such as a plastic material and then in the second process step, the water- and air-permeable bag material and the other bag material are divided such that the cord remains undivided ,
  • the pouch connection is formed by a first sealing seam having a first sealing seam edge and a second sealing seam edge, and wherein the water- and air-permeable pouch material divides between the first sealing seam edge and the second sealing seam edge during the second method step becomes.
  • first and the second sealing seam border after dividing belong to different bags.
  • a second sealed seam is produced by the material-locking connection, wherein the cord is enveloped by the second sealing seam in such a way from the water and air-permeable bag material, that the cord form-fitting in a direction perpendicular to the conveying direction Direction cooperates with the water and air permeable bag material and is movable in a direction parallel to the conveying direction relative to the bag.
  • a seam is formed by the second sealed seam.
  • the second sealed seam creates a drawstring that guides the movement of the drawstring along a drawstring preferred direction.
  • the water and air permeable bag material is folded and welded such that at least one drawstring on an upper edge of the water and air permeable bag material and at least one further drawstring on a lower edge of the water and air permeable Bag material is formed, with the upper edge of the lower edge opposite.
  • two such water and air permeable drawstring bag materials are welded together at the first and second edges to form two opposed bag openings.
  • the one bag opening is arranged on the first edge and the second bag opening on the second edge.
  • a node is generated in the cord.
  • the third and the fourth method step preferably take place in a node machine.
  • a first drawstring is arranged with a cord on the front side of the bag and a second drawstring is arranged on the back of the cord bag.
  • the front and back of the cord bag are defined by the surface sides which are parallel to the main extension plane and face each other.
  • the first and second drawstrings are arranged at the same height.
  • the cord end of the cord is knotted from the first drawstring with that from the second drawstring, in particular with the cord end of the cord from a respective adjacent drawstring opening.
  • the node is formed such that the node prevents the cord from leaving the cord bag and wherein the third and the fourth method step are performed in a knotting device. It is conceivable that the node is executed differently. For example, a node may be formed which has fringes and / or a loop.
  • Another object of the present invention is a machine with a separating device for producing a cord bag according to one of the above-mentioned methods.
  • Advantage over the prior art is that with this machine Kordel milk be realized that have no damage caused by the manufacturing process on the surface.
  • the separating device comprises a roller with a groove and a rotary cutting knife.
  • FIG. 1 shows a schematic view of a first exemplary separation device for producing a cord bag according to a first exemplary embodiment of the present invention.
  • FIG. 2 shows a separating device for producing a cord bag 1 in an exemplary second method step according to a first exemplary embodiment of the present invention.
  • the cord bag 1 produced by the method comprises a bag 15 made of a water- and air-permeable bag material and a cord 13. It is provided in particular that the cord bag 1 comprises at least a first drawstring 16 'and / or a second drawstring 16 " the cord 13 is at least partially enveloped by the water- and air-permeable bag material such that the first drawstring 16 'and / or the second drawstring 16 "is formed by the water-permeable and air-permeable bag material.
  • the first drawstring 16 'and the second drawstring 16 "allow the drawstring to be pulled relative to the pouch 15 of the drawstring bag 1 and can thereby be used to close a pouch opening 18.
  • the water-permeable and air-permeable pouch Bag material is folded and in a second process step, the folded, water and air-permeable bag material by means of the separator 201 is divided such that the water and air-permeable bag material, preferably the cord to form a first drawstring 16 'and / or a second drawstring wrapped, is divided by the separating device 201, wherein the cord 13 remains undivided, that is, the cord 13 is not divided in the second process step FIG.
  • Separator 201 shown has a rotary cutting blade 30 which rotates about a rotational axis of the rotary cutting blade B.
  • the rotary cutting blade 30 is articulated via a bracket 33 to a linear guide 35.
  • the linear guide 35 is preferably along a cutting direction D, for example by means of a pneumatic cylinder or with an electric or electronic guide unit, movable, wherein the roll cutting blade 30 is also movable along the cutting direction D by the movement of the linear guide.
  • the separating device 201 comprises a roller 20 with a groove 21, wherein the groove 21 is arranged such that the folded, water and air-permeable bag material after the first method step on the roller 20 is placeable, that the cord 13 in the groove 21 disappears when the rotary cutting blade 30 is passed over the roller 20 for cutting the folded water and air-permeable bag material.
  • the folded, water- and air-permeable bag material is divided along a first sealed seam 11, the first sealed seam 11 being realized during the first method step after folding the water- and air-permeable bag material.
  • the first sealing seam 11 extends substantially parallel to the cutting direction D and forms after the Parting the water-and air-permeable bag material at least partially the edge of at least one bag of the manufactured cord bag 1.
  • the roller 20 is rotatable about a rolling axis A. Specifically, the roller 20 is rotated when the dicing operation of the second process step according to the present invention is interrupted. By the rotation of the roller 20, the transport of the bag 15 or of the water- and air-permeable bag material along a conveying direction C in the context of the production of the cord bag 1 can at least be supported. Preferably, then the conveying direction C is perpendicular to the cutting direction D. During the dicing process, it is provided that the roller 20 is arranged rotationally fixed.
  • the linear guide 35 leads the rotary cutting blade 30 in a forward movement along the cutting direction D, wherein during the forward movement, the rotary cutting blade 30 is pivotable about the bracket 33 that the rotary cutting blade 30, in particular the Cutting edge of the rotary cutter 30, spaced from the folded water and air-permeable bag material is passed, whereby neither the cord 13 nor the folded, water and air-permeable bag material is cut.
  • the folded, water- and air-permeable bag material 10 is conveyed along the conveying direction C during the forward movement of the rotary cutting blade 30.
  • a backward movement is provided, in which the roll cutting blade 30 is guided over the roller 20 so that the water- and air-permeable bag material is cut without dividing the cord 13.
  • forward movement and backward movement alternate, whereby at least one bag 15 for the cord bag 1 is realized.
  • FIGS. 2a, 2b and 2c 3 are three schematic side views during an exemplary fragmentation of a folded, water- and air-permeable bag material 10 according to the second method step of the present invention.
  • the first snapshot in FIG. 1 shows the position of the rotary cutter blade 30 at the beginning of the dicing process.
  • the rotary cutter 30 is pulled along the cutting direction D.
  • the rotary cutter 30 has a circular circumference.
  • the rotary cutting blade 30 takes other forms.
  • the rotary cutting blade 30 could also have an elliptical circumference when seen from the same perspective.
  • the roll cutting blade 30 is unrolled along the cutting direction D by contact with the roll 20 and by the movement of the rotary cutting blade 30 (guided by the linear guide).
  • the roll cutting blade 30 is guided in rotation over the roll 20, wherein the rolling movement between the roll 20 and roll cutting blade 30 arranged, folded water and air permeable Bag material is parted.
  • the rotary cutting blade 30 is rotated by means of a motor during the cutting process.
  • the rotary cutting blade 30 preferably comprises a sharp edge at the locations provided for the cutting of the water and air permeable bag material, that is to say the points which come into operative connection with the water- and air-permeable bag material.
  • the edge of the rotary cutting knife 30 has a perforating means, wherein the perforating means as the roll cutting blade 30 rolls over the roll 30 perforates the folded water and air permeable bag material such that pulling on the water and air permeable bag material in one direction, which runs substantially parallel to the conveying direction, leads to the division of the water- and air-permeable bag material.
  • the rotary cutting blade 30 has a contour that allows the individual bags have a profile at its edge after the cutting. As a result, for example, drawstring bags with a serrated or wavy edge profile can be generated. Out FIG.
  • the folded water- and air-permeable bag material is arranged on the roller 20 in such a way that the cord 13, which is at least partially covered by the water- and air-permeable bag material, is arranged in the groove 21 of the roller 20.
  • the rotary cutting blade 30 is unable to divide the cord 13 when the rotary cutting blade 30 is in a direction perpendicular to the cutting direction D direction over the cord 13.
  • This situation is called a snapshot in FIG. 2b shown. It is provided that the roll cutting blade 30 is rolled over the groove 21 along the cutting direction D and parts of the rest of the folded water and air-permeable bag material, as in Figure 2c is illustrated as another snapshot.
  • FIG. 3 is a schematic view and a block diagram showing an exemplary method of manufacturing a cord bag according to a second exemplary embodiment of the present invention.
  • On the left side of the FIG. 3 shows the schematic view of how the water and air-permeable bag material with the partially wrapped cord 13 along a conveying direction C is moved and processed until finally a drawstring 1 is formed.
  • the water- and air-permeable bag material and the cord 13 pass through different devices, which receive different tasks in the production process of the cord bag.
  • these tasks are documented or summarized accordingly.
  • the water- and air-permeable bag material is folded in a first process step.
  • a folding device 101 is provided for folding the water- and air-permeable bag material.
  • the first method step additionally comprises the welding of the folded water and air-permeable bag material 10 in a welding device 102.
  • the endless belt comprises a first sealed seam and a second sealed seam.
  • the first sealing seam runs essentially along a direction perpendicular to the conveying direction and has a first and a second sealing seam edge 41 and 42. It is provided that the water-permeable and air-permeable bag material is severed between the first and second sealing seam edge and the first sealing seam edge becomes part of a bag and the second sealing seam edge becomes part of another bag.
  • first sealing seam edge ensures that the bag is closed along a side which is substantially perpendicular to the conveying direction C
  • second sealing seam edge ensures that the other bag is closed along a side which is substantially perpendicular to the conveying direction C.
  • the second seal seam forms a first and a second drawstring 16 'and 16 ", the first and second drawstrings 16' and 16" comprising the water and air permeable bag material which at least partially surrounds the drawstring 13, that the cord 13 is movable in a direction substantially parallel to the conveying direction C relative to the first and second drawstring 16 and 16 ', respectively.
  • first and the second drawstring 16 'and 16 "' are arranged on opposite sides along a direction perpendicular to the conveying direction C and perpendicular to the course of the first sealing seam 11 and the bag opening 18 is arranged between them
  • the water- and air-permeable bag material 200 is cut along the first sealed seam 11 by means of a separating device 200, the separating device dividing the water- and air-permeable bag material but not dividing the cord 13.
  • the resulting bag 15 becomes so relative to the cord 13 that a piece of cord on each side protrudes from the drawstring of the bag, in a third process step, the cord 300 is divided into a cord-dividing device 301 and in a fourth process step, the nodes 17 are produced in a knotting device, the Knotting device, for example, loops and / or fringes realized at the ends of the cord 17.
  • separating device and knotting device are combined into a dividing and knotting device.
  • FIG. 4 a first exemplary drawstring bag 1 according to the present invention is shown.
  • the cord bag 1 made of the water and air permeable bag material has first and second drawstrings 16 'and 16 ". Between the first and second drawstrings 16' and 16" the bag opening 18 is arranged, through which a potential bag contents, such as e.g. Tea, rice, perfume carrier, spice mixtures or the like, in the Drawstring 1 is inserted.
  • a potential bag contents such as e.g. Tea, rice, perfume carrier, spice mixtures or the like
  • cords 1 which extend through the first and second drawstrings 16 'and 16 "and extend beyond the drawstring and thus beyond the bag 15
  • a simple closing of the preferably filled cord bag 1 can be realized
  • the knots of the illustrated exemplary knapsack are designed as fringes.
  • the illustrated drawstring 1 also has to form the drawstring a second sealed seam 12, wherein the second sealing seam 12 extends until the course of the drawstring, that by the second sealed seam 12, a movement of the cord 13 in a direction perpendicular to the course of the drawstring direction is positively prevented.
  • the cord bag 1 on the right and the left side each comprises a first sealing seam 11, which closes the bag to the side and prevents a potential bag contents from falling out of the bag.
  • the bag opening 18 along a direction substantially to the first seal seam 11 direction prevents the simply folded water and air-permeable bag material falling out of the potential bag contents.
  • FIG. 5 A second exemplary drawstring bag according to the present invention is shown.
  • the second exemplary drawstring bag has a further first and a further second drawstring 16 "'and 16"", in each of which a further drawstring 13 is placed such that the corresponding additional drawstring 13 relative to the bag along the course of the other first or second drawstring 16 "'or 16""is movable, in addition, second more second sealing seams 12 provide a hem formation.
  • the two cords of the further first drawstring 16 "'and the further second drawstring 16"” are knotted together outside of the drawstring bag 1.
  • the knot 17 slips out of the cords 13 from the further first and the second drawstring 16 "'and 16""prevented.
  • the water- and air-permeable bag material is folded and sealed in such a manner that both the cords 13 in the first and second drawstrings 16 'and 16 "and the cords 13 in the further first and further second drawstrings are substantially not relative to the bag
  • the water- and air-permeable bag material is folded such that the folded bag material can form a bag bottom 19.
  • the size of the bag bottom 19 can be defined over the circumference or area of the folded bag material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Making Paper Articles (AREA)

Claims (11)

  1. Procédé pour la fabrication d'un sac à cordon (1), dans lequel le sac à cordon (1) comprend un sac (15) et un cordon (13), le sac (15) se composant d'un matériau de sac perméable à l'eau et à l'air,
    - dans lequel, dans une première étape de procédé, le matériau de sac perméable à l'eau et à l'air est plié, le cordon (13) étant enveloppé au moins en partie par le matériau de sac perméable à l'eau et à l'air, et
    - dans lequel, dans une deuxième étape de procédé pour la fabrication du sac à cordon (1), le matériau de sac perméable à l'eau et à l'air plié est sectionné à l'aide d'un dispositif de séparation (201), le dispositif de séparation (201) étant conçu de manière à couper le matériau de sac perméable à l'eau et à l'air plié, qui entoure le cordon (13), sans couper la cordon (13), le dispositif de séparation (201) comprenant un moyen de coupe et un cylindre (20) doté d'une rainure (21), dans lequel, dans la deuxième étape de procédé, le matériau de sac perméable à l'eau et à l'air plié est disposé sur le cylindre (20) doté de la rainure (21) de telle manière que, lors de la coupe du matériau de sac perméable à l'eau et à l'air plié à l'aide du moyen de coupe, le cordon (13) est disposé dans la rainure (21) du cylindre (20).
  2. Procédé selon la revendication 1, dans lequel le moyen de coupe est une lame de coupe rotative (30), dans lequel la lame de coupe rotative (30) peut être déplacée à l'aide d'un guidage linéaire (35) le long d'une direction de coupe (D) parallèle à l'axe de cylindre (A) et dans lequel la lame de coupe rotative (30) est déplacée le long de la direction de coupe (D) sur le cylindre (20) pendant la deuxième étape de procédé.
  3. Procédé selon la revendication 2, dans lequel la lame de coupe rotative (30) est articulée de manière pivotante sur le guidage linéaire (35) par le biais d'un étrier (33) et dans lequel la lame de coupe rotative (30) peut être déplacée aussi bien vers l'avant que vers l'arrière le long de la direction de coupe (D), et la lame de coupe rotative (30) étant déplacée, lors du déplacement vers l'avant, de manière espacée du cylindre (20) le long de la direction de coupe (D) de telle manière que le matériau de sac perméable à l'eau et à l'air n'est pas coupé une fois le déplacement vers l'avant terminé.
  4. Procédé selon l'une des revendications précédentes, dans lequel le matériau de sac perméable à l'eau et à l'air plié et/ou le sac (15) avec le cordon (13) enveloppé au moins en partie par le matériau de sac perméable à l'eau et à l'air est déplacé le long d'une direction de transport (C) pendant le processus de fabrication, la direction de transport (C) s'étendant sensiblement perpendiculairement à l'axe de cylindre (A).
  5. Procédé selon l'une des revendications précédentes, dans lequel, dans la première étape de procédé, une liaison de sac est générée avec lui-même et/ou avec un autre matériau de sac.
  6. Procédé selon la revendication 5, dans lequel la liaison de sac forme un premier joint de scellement (11) avec un premier bord de joint de scellement (41) et un second bord de joint de scellement (42), et dans lequel le matériau de sac perméable à l'eau et à l'air est coupé entre le premier bord de joint de scellement (41) et le second bord de joint de scellement (42) pendant la deuxième étape de procédé.
  7. Procédé selon la revendication 5 ou 6, dans lequel la liaison par liaison de matière génère un second joint de scellement (12), le cordon (13) étant enveloppé par le matériau de sac perméable à l'eau et à l'air par le biais du second joint de scellement (12) de manière à coopérer par complémentarité de formes avec le matériau de sac perméable à l'eau et à l'air dans une direction s'étendant perpendiculairement à la direction de transport (C) et à pouvoir être déplacé par rapport au sac dans une direction s'étendant parallèlement à la direction de transport (C).
  8. Procédé selon l'une des revendications précédentes, dans lequel, dans une troisième étape de procédé, le cordon (13) est découpé et dans une quatrième étape de procédé, un noeud (17) est généré dans le cordon (13).
  9. Procédé selon la revendication 8, dans lequel le noeud (17) est conçu de telle manière que le noeud (17) empêche le cordon (13) de sortir du sac à cordon (1), la troisième et la quatrième étape de procédé étant exécutées dans une direction de nouage (401).
  10. Machine destinée à exécuter le procédé pour la fabrication d'un sac à cordon (1) d'après un procédé selon les revendications 1 à 10, comprenant un dispositif de séparation, caractérisée en ce que le dispositif de séparation (201) comprend un cylindre (20) doté d'une rainure (21), ainsi qu'une lame de coupe rotative (30).
  11. Machine selon la revendication 10, dans laquelle la machine comprend un moyen de transport, un dispositif de pliage (101), un dispositif de soudage (102), un dispositif de découpe de cordon (301) et un dispositif de nouage (401), dans laquelle le moyen de transport, le dispositif de pliage (101), le dispositif de soudage (102), le dispositif de découpe de cordon (301) et le dispositif de nouage (401) sont disposés de telle manière qu'un ou plusieurs moyens de transport transportent le matériau de sac perméable à l'eau et à l'air
    - vers le dispositif de pliage (101), dans lequel le matériau perméable à l'eau et à l'air est plié dans une première étape de procédé,
    - vers le dispositif de soudage (102), dans lequel le matériau de sac perméable à l'eau et à l'air est soudé de telle manière qu'un cordon (13) est enveloppé au moins en partie par le matériau de sac perméable à l'eau et à l'air plié,
    - vers le dispositif de séparation (201), qui coupe le matériau de sac perméable à l'eau et à l'air sans couper le cordon (13),
    - vers le dispositif de découpe de cordon (301), qui coupe le cordon (13), et/ou
    - vers le dispositif de nouage (401), qui noue les extrémités du cordon (13) coupé.
EP13178993.5A 2013-08-01 2013-08-01 Procédé pour la fabrication d'un sac à corde, machine pour la fabrication d'un sac à corde Active EP2832923B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13178993.5A EP2832923B1 (fr) 2013-08-01 2013-08-01 Procédé pour la fabrication d'un sac à corde, machine pour la fabrication d'un sac à corde

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EP13178993.5A EP2832923B1 (fr) 2013-08-01 2013-08-01 Procédé pour la fabrication d'un sac à corde, machine pour la fabrication d'un sac à corde

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EP2832923A1 EP2832923A1 (fr) 2015-02-04
EP2832923B1 true EP2832923B1 (fr) 2016-10-12

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107284989A (zh) * 2017-07-19 2017-10-24 江苏南江智能装备股份有限公司 一种自动手提袋穿绳装置的手挽绳分离机构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079844A (en) * 1959-12-16 1963-03-05 Kugler Emanuel Method of making draw string bags
FR1388864A (fr) * 1963-12-16 1965-02-12 Procédé de fabrication des sacs ou sachets à cordonnets
GB1039627A (en) * 1964-08-26 1966-08-17 Blicher Christoffersen As A bag with gathering strings enclosed in a casing and a method and a machine for manufacturing same

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