EP2498984A1 - Ensemble d'application de feuille de couverture de fond pour collage sans bord - Google Patents

Ensemble d'application de feuille de couverture de fond pour collage sans bord

Info

Publication number
EP2498984A1
EP2498984A1 EP10773315A EP10773315A EP2498984A1 EP 2498984 A1 EP2498984 A1 EP 2498984A1 EP 10773315 A EP10773315 A EP 10773315A EP 10773315 A EP10773315 A EP 10773315A EP 2498984 A1 EP2498984 A1 EP 2498984A1
Authority
EP
European Patent Office
Prior art keywords
adhesive
pieces
piece
transport cylinder
cylinder
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.)
Granted
Application number
EP10773315A
Other languages
German (de)
English (en)
Other versions
EP2498984B1 (fr
Inventor
Jörg Christian THIES
Thomas Bozic
Thorsten KRÖGER
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP2498984A1 publication Critical patent/EP2498984A1/fr
Application granted granted Critical
Publication of EP2498984B1 publication Critical patent/EP2498984B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0012—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing in 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
    • 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
    • B31B2160/20—Shape of flexible containers with 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
    • 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
    • B31B70/812—Applying patches, strips or strings on sheets or webs
    • B31B70/8122—Applying patches

Definitions

  • the invention relates to a device for adhering pieces of material to parts of bags or sacks according to the preamble of claim 1 and to a corresponding method according to the preamble of claim 12.
  • Bags particularly block bottom bags with gussets
  • Bags are often made in a longitudinal process in which a piece of tubing is conveyed to the bag in its longitudinal direction for processing.
  • a bottom often a block or block bottom, formed.
  • the Auslegeschrift DE 1 245 699 shows a complete device for the production of bags of sheet-like materials.
  • Such bags are provided with bottom cover sheets to increase the stability of the soil.
  • the bottom cover sheets can be designed so that the user of this bag is a carrying handle available.
  • Such bags with differently designed cover sheets are shown and described in DE 41 02 548.
  • DE 1 245 699 indicates a device for adhering pieces of material to parts of bags or sacks.
  • the device is called there cover sheet sticker.
  • Such device for adhering pieces of material initially comprises a provision device for providing pieces of material.
  • This can be one Be magazine with which individual pieces of material, ie, for example, cover sheets, are provided as a stack.
  • a separating device in which individual pieces of material can be separated from the roll.
  • Such separating devices usually comprise a smooth-cutting or perforating knife with which separating cuts can be introduced into the material web.
  • the singulator is designed so that it can remove a piece of material from the stack.
  • the separated piece of material is taken over by a first transport cylinder which guides the piece of material past an adhesive application device.
  • the piece of material provided with adhesive is then stickable to parts of bags or sacks, in practice usually the floors.
  • the adhesive application device comprises an adhesive reservoir and an adhesive removal roller, which draws adhesive from the adhesive reservoir. Said roll then delivers the adhesive to an adhesive applicator roll.
  • This roller carries a to be glued surface of the piece of material corresponding format piece, which is often referred to as a cliché. Only this format piece takes the adhesive from the adhesive removal roller and transfers it to the piece of material.
  • the object of the present invention is to propose an apparatus and a method for adhering pieces of material to parts of bags or sacks, which avoids the said and other disadvantages.
  • a second transport cylinder is provided, with which the pieces of material from the first transport cylinder can be taken over and with which the pieces of material can be applied to the parts of the bag or sacks. Furthermore, it is provided that the adhesive application device cooperates with the second transport cylinder, so that adhesive can be applied to the material piece, if this is located on the second transport cylinder.
  • the second format cylinder comprises a format part whose surface contour corresponds to the region of a material piece to be provided with adhesive and that the material piece rests on this format part during transport with the second transport cylinder.
  • this problem is now circumvented by the material piece is now arranged raised above the outer surface by the format part on the outer surface of the second transport cylinder. If now the adhesive is applied by means of a roller, So this can only stick to the piece of material and does not reach the second transport cylinder. Thus, on the one hand pollution of the transport cylinder is avoided and on the other hand a more complete - a so-called borderless - adhesive application achieved. Especially the latter point is important if the bag is to be filled automatically in a filling device. In bags made in conventional devices, the bottom deck often has an edge that is not glued to the bag or bag. This edge can unfold in a filling device and then disturbs the proper transport of the bag through such a device. Machine downtime can not be ruled out in such cases. The device according to the invention can now be used to produce bags or sacks which can be transported more reliably in filling devices.
  • the format part comprises recesses or depressions.
  • the cover sheet is to comprise one or more carrying handles.
  • Such carrying handles can be created by cutting the piece of material so that the subsequent user can reach under the area delimited by the cuts. Of course, these areas must not be coated with adhesive.
  • the region of the later carrying handles can now be pulled slightly inwards as seen in the radial direction of the second transport roller, so that this area is not provided with adhesive.
  • the piece of material can be held in different ways on the surface of the second transport cylinder.
  • a practicable solution would be holding tongs or other mechanically acting devices. Magnetic or electrostatic forces would also be possible, depending on the material.
  • the second transport cylinder comprises openings, which can be acted upon by negative pressure. This vacuum is sufficient to hold pieces of material of very different materials on the cylinder can.
  • the openings not only with negative pressure, but also with overpressure can be acted upon.
  • the piece of material can thus be sucked in with negative pressure or repelled with overpressure. The latter is advantageous at the moment when the piece of material is to be dispensed from the second transport cylinder and applied to the bag.
  • the adhesive application roller needs, if the second transport roller carries a format part, itself no longer be subjected to a cliché. It is now sufficient to use an adhesive applicator roll, which has the same surface structure over the entire outer circumference. So it can be especially smooth. It is also advantageous if the adhesive application roller at least partially comprises a metal surface.
  • an adhesive application device is provided, with which hot-melt adhesive, ie hot-melt adhesive, can be provided.
  • hot-melt adhesive ie hot-melt adhesive
  • the procedural advantages no drying of the adhesive to fear during breaks, no long drying time for glued together workpiece parts necessary
  • plastic bags can be made in the same way. Also bags that include both paper and plastics are producible. In general, bags made of any materials can be produced with it.
  • the adhesive application device by means of a Absteil founded from an operating position in which adhesive can be applied to a piece of material, off, so that no contact with the piece of material, or if this is missing, can be produced with the format part.
  • the Absteil listening may include at least one compressed air cylinder.
  • a first short stroke cylinder can be for a very fast Ensure that the adhesive applicator is stopped when a piece of material fails.
  • the parking distance only needs to be a few millimeters.
  • a Weithubzylinder can convey the adhesive applicator in a maintenance position, which may for example be several 10 cm above the operating position.
  • Pneumatic cylinders are an example of suitable lifting devices. Other devices are equally applicable.
  • the senor may provide its "observations" to a controller which, in the absence of a portion of material, actuates the divider.
  • the adhesive application device comprises an adjustment device, with which the minimum radial position is adjustable relative to the second transport cylinder.
  • FIG. 1 side view of a device according to the invention for adhering pieces of material
  • FIG. 2 view of the section II-II in Fig. 1st
  • FIG. 3 view of the section III - III in Fig. 2nd
  • FIG. 4 view of the section IV - IV in Fig. 2nd
  • Fig. 1 shows a device 1 for adhering material pieces not shown in detail on parts of bags 2.
  • the bags are transported by means of a so-called storage cylinder 3, which has the task to a To put down finished bag 2 on a bag stack, not shown.
  • the bag 2 is initially transported by the storage cylinder along a first pressure roller 4.
  • This has the task, the bag bottom 5, which has just been formed in the previous steps, to press again to get the gluing of the piece of material (here: a ground cover sheet) as flat as possible.
  • the bottom cover sheet provided by the second transport cylinder 6 and already provided with adhesive is accurately applied to this floor.
  • the second transport cylinder can also be referred to as transfer cylinder 6.
  • transfer cylinder 6 can also be referred to as transfer cylinder 6.
  • the operations required to provide the ground cover sheet are described below.
  • the bag 2 is guided past a second pressure roller 7, which again presses the ground, so that the bottom cover sheet is as firmly as possible connected to the ground.
  • the bottom cover sheets are provided in the form of a roll 8, from which the material web 9 is unwound.
  • the web 9 passes through the nip of a punch 10.
  • a first roller 1 1 carries one or more punching blades, a second roller 12 comprises a counter-layer. With this punch cuts can be introduced into the web 9, which later separate the carrying handles from the rest of the bottom cover sheet.
  • the web 9 now passes through the nip of a feed roller pair 13. Subsequently, the web 9 reaches the peripheral surface of a cutting cylinder 14, which carries a cutting knife 15, usually in the form of a slitter knife.
  • the knife 15 cooperates with the fixed counter blade 16 and separates individual pieces of material, the later ground cover sheets, from the material web 9.
  • the cutting cylinder transports the so-isolated ground cover sheets on and therefore can also be referred to as the first transport cylinder 14.
  • this is preferably designed as a suction cylinder. This means that this cylinder comprises on its peripheral surface openings which can be acted upon by negative pressure.
  • the structure of the cutting cylinder 14 will be explained later with reference to the transfer cylinder 6, the advantageously has the same functionality with respect to the retention of the bottom cover sheet.
  • the transfer cylinder is acted upon at the same time with a negative pressure, so that a secure transfer of the ground cover sheet comes about.
  • the transfer cylinder 6 carries on its outer surface at least one format part 17. This is interchangeable and corresponds to the extent of the bottom cover sheet. After having been taken over by the cutting cylinder, the bottom cover sheet occupies exactly the format part 17.
  • the format part 17 has through holes which correspond to the openings of the transfer cylinder 6 that can be subjected to negative pressure, so that a bottom cover sheet can be securely fixed to the format part 17 by the negative pressure.
  • the bottom cover sheet is pressed by a pressure roller 18 against the format part 17, wherein not only the bottom cover sheet is again fixed on the format part 17 and smoothly painted, but the later grip strip is pressed slightly into an introduced into the format part recess.
  • an adhesive application device 19 which comprises at least one glue reservoir 20 and an adhesive application roller 21.
  • the adhesive applicator roll 21 can directly remove the adhesive from the reservoir. But it can also - as known - be provided an adhesive transfer roller, which takes over the task of adhesive removal and applies the adhesive to the adhesive applicator roll.
  • the adhesive application roller 21 is positioned relative to the transfer cylinder so that they just rest on the raised areas of the format part 17 Touched parts of the bottom cover sheet and only provides these parts with adhesive.
  • a sensor 23 is provided which detects the presence or absence of a bottom cover sheet.
  • the corresponding signals can now be processed by a control device (not shown). This can now cause a displacement of the adhesive application roller 21 in the direction of the double arrow 22. The displacement takes place by means of a parting device, which will be explained with reference to FIG 2.
  • the adhesive reservoir 21 is displaceable along a rail 24 in the direction of the double arrow 22. It can also be provided a plurality of parallel rails. Preferably, two rails 21 are disposed at each end of the adhesive reservoir 21.
  • the rails 24 are supported on brackets 25, which may be connected in a manner not shown to the machine frame.
  • a stop 26 is supported on a bracket 25. This is adjustable so that the operating position in which the adhesive application roller 21 applies the adhesive to the ground cover sheet, is changeable.
  • a pin 50 is shown, which is a portion 51 with a hexagonal plan, to which a wrench can engage, and a threaded portion 52 which is screwed into the bracket 25, is provided. By rotating the pin so its height and thus the operating position can be varied.
  • a first piston-cylinder unit 26 which is designed as a quick-release cylinder unit. This is actuated by the control device when the absence of a bottom cover sheet has been detected by means of the sensor 23.
  • a second piston-cylinder unit 27 is arranged on the console 25, which is designed as a Weithubzylinderü. With this cylinder unit 27, the displacement of the adhesive applicator 19 in a maintenance position is possible.
  • the outer surface 31 of the transfer cylinder 6 is shown. It can be seen that this comprises a plurality of openings 30.
  • a disk 32 is arranged at least on one end side of the transfer cylinder 6 and does not rotate together with the transfer cylinder.
  • This disc 32 comprises an overpressure port 33 and a vacuum port 34.
  • overpressure and negative pressure mean that a fluid is provided which is exposed to a higher or a lower pressure relative to the ambient pressure.
  • Preferred fluid is air, so that can be spoken of overpressure of compressed air and negative pressure of a vacuum.
  • the transfer cylinder 6 has a comparatively thick jacket, which comprises a plurality of axial bores 35, which in turn may be configured as through-bores. Each of these axial bores 35 may communicate with a plurality of radial bores 30 that represent the openings 30. If individual openings 30 are not supposed to overlap with or negative pressure can be applied, 35 bolts 37 can be inserted in the corresponding axial bores, whose length is dimensioned so that the desired number of openings 30 is covered. In FIG. 3, the open bores 35 are white and the bores closed with bolts 37 are shown in black.
  • the disk 32 is shown in more detail.
  • This comprises a circular arc-shaped recess 38 which communicates with the vacuum port.
  • the radial position of the recess 38 is dimensioned so that it can communicate with the holes 35.
  • the recess 38 includes, for example, an angle in a range of 200 to 270 degrees.
  • a bore 35 which is located in this angular range, is subjected to negative pressure.
  • the bore 35 leaves after a certain time the recess 38.
  • the bore 35 reaches a second circular arc-shaped recess 39. This is supplied via the compressed air connection 33 with an overpressure, so that the overpressure now the bore 35th detected.
  • the procedure described does not only refer to the transfer cylinder. It can also be provided in the cutting cylinder 14.

Landscapes

  • Making Paper Articles (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

L'invention décrit un dispositif pour coller des pièces de matériau (1) sur des parties de sachets (2) ou de sacs, comprenant : un dispositif de fourniture, avec lequel des pièces de matériau cohérentes peuvent être mises à disposition, un dispositif de séparation, qui permet de mettre à disposition des bouts de matériau individuels, un premier cylindre de transport, qui permet de transporter plus loin des pièces de matériau individuelles, un dispositif d'application de colle (19), qui permet d'appliquer de la colle sur une pièce de matériau respective, caractérisé en ce qu'il est prévu un second cylindre de transport (6), qui permet de prendre en charge les pièces de matériau sur le premier cylindre de transport et d'appliquer les pièces de matériau sur les parties des sachets (2) ou des sacs, et de telle sorte que le dispositif d'application de colle (19) coopère avec le second cylindre de transport (6), de sorte que de la colle peut être appliquée sur la pièce de matériau lorsque celle-ci se trouve sur le deuxième cylindre de transport (6).
EP10773315.6A 2009-11-09 2010-11-02 Ensemble d'application de feuille de couverture de fond pour collage sans bord Active EP2498984B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009046537A DE102009046537B4 (de) 2009-11-09 2009-11-09 Bodendeckblattaggregat für randlose Beleimung
PCT/EP2010/066645 WO2011054824A1 (fr) 2009-11-09 2010-11-02 Ensemble d'application de feuille de couverture de fond pour collage sans bord

Publications (2)

Publication Number Publication Date
EP2498984A1 true EP2498984A1 (fr) 2012-09-19
EP2498984B1 EP2498984B1 (fr) 2013-10-23

Family

ID=43431178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10773315.6A Active EP2498984B1 (fr) 2009-11-09 2010-11-02 Ensemble d'application de feuille de couverture de fond pour collage sans bord

Country Status (4)

Country Link
EP (1) EP2498984B1 (fr)
DE (1) DE102009046537B4 (fr)
ES (1) ES2443227T3 (fr)
WO (1) WO2011054824A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20160908A1 (it) * 2016-02-19 2017-08-19 Roberto Peano Macchina perfezionata per la fabbricazione di un imballo di foglio sottile
IT202200012494A1 (it) * 2022-06-13 2023-12-13 Eurocell S R L Unita' e relativo metodo per l'applicazione di fondelli di rinforzo su sacchetti

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE489863A (fr) *
US752360A (en) * 1904-02-16 Carpet-fastener
DE646902C (de) * 1929-08-13 1937-06-23 Verpackungsbedarf G M B H Vorrichtung zur Herstellung von Kreuzbodenventilsaecken mit Verstaerkungsstreifen
DE1245699B (de) * 1959-06-01 1967-07-27 Fischer & Krecke O H G Verfahren und Maschine zum Herstellen von Tragetaschen, die im zusammengefalteten Zustand flach liegen und mit Seitenfalten und Klotzboden versehen sind, aus Papier oder einem aehnlichen Material
DE4102548A1 (de) 1991-01-29 1992-07-30 Kochsiek Maschinenbau Soltau G Seitenfaltenbeutel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011054824A1 *

Also Published As

Publication number Publication date
DE102009046537B4 (de) 2012-07-05
WO2011054824A1 (fr) 2011-05-12
ES2443227T3 (es) 2014-02-18
EP2498984B1 (fr) 2013-10-23
DE102009046537A1 (de) 2011-05-12

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