EP4532189A1 - Procédé et dispositif pour appliquer des bandes de déchirage sur une bande de matériau continue - Google Patents

Procédé et dispositif pour appliquer des bandes de déchirage sur une bande de matériau continue

Info

Publication number
EP4532189A1
EP4532189A1 EP23728280.1A EP23728280A EP4532189A1 EP 4532189 A1 EP4532189 A1 EP 4532189A1 EP 23728280 A EP23728280 A EP 23728280A EP 4532189 A1 EP4532189 A1 EP 4532189A1
Authority
EP
European Patent Office
Prior art keywords
material web
strip
drum
tear
lay
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.)
Pending
Application number
EP23728280.1A
Other languages
German (de)
English (en)
Inventor
Johann Köster
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.)
Focke and Co GmbH and Co KG
Original Assignee
Focke and Co GmbH and Co 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 Focke and Co GmbH and Co KG filed Critical Focke and Co GmbH and Co KG
Publication of EP4532189A1 publication Critical patent/EP4532189A1/fr
Pending 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
    • 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
    • B31B70/8123—Applying strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
    • B65B61/182—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying tear-strips or tear-tapes

Definitions

  • the invention relates to a method for attaching tear strips to a continuous material web for the production of wrappers for groups of products in the cigarette industry, a continuous strip of material for tear strips being pulled off a reel, preferably continuously, from which tear strips of a predetermined length are separated, which are then spaced apart are attached to each other on the continuous material web, according to the preamble of claim 1.
  • Devices and methods of this type are known in practice in numerous variants.
  • the invention is based on the object of further developing corresponding devices and methods, in particular of providing at least further variants or alternatives.
  • a method for solving this problem has the features of claim 1. It is therefore provided that the strip of material is brought into contact with the lateral surface of a laying drum which is polygonal in cross section and is preferably driven in cycles, so that an adhesive-provided side of the material strip faces outwards, and that a tear strip is then separated from the strip of material on the circumference of the laying drum is, and that then the material web preferably against the lateral surface of the lay-on drum is moved so that the separated tear strip is attached to the material web by gluing.
  • the continuous strip of material is provided with a grip tip at predetermined intervals before being fed to the lay-on drum and thus before the tear strips are attached to the material web,
  • the separating cut for separating a tear strip from the material web is carried out at a short distance from the grip tip.
  • the lateral surface of the laying drum which has a polygonal cross section, is formed by a (corresponding) number of flat side surfaces arranged at an angle to one another,
  • a special feature can be that the length of the flat side surfaces in the circumferential direction essentially corresponds to the predetermined length of the tear strips.
  • the lay-on drum is driven step by step and, during a short standstill phase of the lay-on drum, the material web is pressed against a facing side surface of the lay-on drum, so that the tear strip is glued to the material web, while the side surface and the material web (essentially ) are arranged in planes aligned parallel to each other.
  • Another special feature can be that the material web is continuously fed to the lay-on drum and is briefly stopped in the area of the lay-on drum in order to press the material web against the tear strip that is kept ready, and that the material web is then continuously transported away again.
  • the material web is guided in the area of the laying drum over deflection rollers, which are pivoted to briefly stop the material web, and which after be swung back again after attaching the tear strip in order to continuously convey the material web (again).
  • incisions and/or punchings are made on the material web during the short standstill of the material web, in particular for tear cuts in the area of the grip tips or for ventilation holes.
  • the tear strips are attached to the material web with their longitudinal extent pointing transversely to the longitudinal extent of the material web.
  • the material strip or one or more tear strips separated therefrom are held by means of negative pressure on the lateral surface of the lay-on drum, in particular a side surface thereof, and that the negative pressure is temporarily deactivated, in particular only in the area of a side surface facing the material web attach a tear strip to the material web.
  • the strip of material is fed in two lanes by two reels and transferred to lay-up drums operating parallel to one another and that the tear strips are attached to the material web simultaneously and parallel and at a distance from one another by one of the two lay-up drums.
  • the material web consists of paper or essentially consists of paper.
  • the grip tip consists of paper or essentially of paper.
  • a device has the features of claim 16. It is therefore characterized by a lay-on drum with a polygonal cross-section, on the outer surface of which the material strip can be brought into contact, so that an adhesive-provided side of the material strip faces outwards, and that the device is set up to form a tear strip on the circumference of the lay-on drum from the material strip and then move the material web against the lateral surface of the lay-on drum in such a way that the separated tear strip is attached to the material web by gluing.
  • a placement station for gripping tips is arranged on the material strip upstream of the lay-up drum, the placement station being set up to separate gripping tips from a material web and to attach them to the material strip at intervals from one another.
  • a cutting station is arranged on the circumference of the lay-on drum, which is set up to separate individual tear strips from the material strips held on the lateral surface of the lay-on drum.
  • a special feature can be that the continuously transportable material web in the area of the lay-on drum is guided over pivotable deflection rollers in such a way that by pivoting the deflection rollers, the material web can be brought to a standstill for a short time in the area of the lay-on drum or in the area of the lifting table in order to form a tear strip to be attached to the stationary material web.
  • Fig. 2 shows a second embodiment of a material web
  • Fig. 3 is a schematic spatial representation of the attachment of
  • Fig. 4 is a schematic spatial representation of the attachment of a
  • Fig. 5 is a side view of a device for attaching
  • Fig. 4 shows that the tear strips 10 are not (as one might assume) attached to the material web 11, but the material web 11 is moved against the tear strips 10.
  • the side of the tear strip 10 provided with adhesive comes into contact with the material web 12, so that both are glued together.
  • the device works on two tracks, therefore two reels 20 with strips of material 16 are provided in planes that are offset from one another. A strip of material 16 is removed from each reel 20 and provided with grip tips 12 at intervals. The material strips 16 prepared in this way are each fed to a lay-up drum 19 and held there on a peripheral or lateral surface 21 by means of negative pressure until they are attached to the material web 11.
  • the laying drums 19 are each rotated step by step or cycled around a horizontal file by their own drive 22.
  • the device can also be operated in one lane, for example when changing a bobbin. It is of course also conceivable that the device as a whole can be designed as a single track.
  • the laying drums 19 are preferably designed in cross section as a regular n-gon, in which all side surfaces 23 have the same dimensions and are arranged at the same angles to adjacent side surfaces 23.
  • the laying drums 19 are hexagonal in cross section, so that the lateral surface 21 is formed by six side surfaces 23. Adjacent side surfaces 23 are each arranged at matching angles to one another.
  • the laying drums 19 are coupled via a vacuum connection 24 to a vacuum source, not shown, so that the lateral surface 21 or the individual side surfaces 23 can be subjected to a negative pressure in order to hold the material strip 16 or one or more tear strips 10.
  • a lay-up station 27 is provided in the transport path of the material strips 16, in which gripping tips 12 are attached to the material strips 16.
  • the structure and functionality of the lay-up stations 27 is shown as an example in FIGS. 8 and 9. Accordingly, a material web 28 for the grip tips 12 is pulled off a reel 29 by means of a pair of preferred rollers 49 and a grip tip 12 is separated by means of the cutting knife 17.
  • the cutting knife 17 is driven in rotation by a servo motor 30.
  • the separated grip tip 12 is first held on a pivotable support 31 by means of negative pressure and then pressed onto the adhesive side of the material strip 16 by pivoting the support and secured there by gluing.
  • the material strips 16, which are provided with a grip tip 12 at intervals, reach the circumference of the respective lay-up drum 19.
  • the separating cut takes place in the transition between two adjacent side surfaces 23 of the laying drums 19.
  • the laying drums 19 are provided with a free space 35 at the corresponding points in order to prevent the separating knives 33 from coming into contact with the respective laying drum when carrying out the separating cut 19 collide.
  • 10 and 11 in particular show that the length of the tear strips 10 essentially correspond to the length of the side surfaces 23 in the circumferential direction. 6 and 7 show, in conjunction with FIGS is. While the tear strips 10 are being fed into a transfer station 37, the lifting table 36 is arranged at a distance from the circumference of the lay-on drums 19 (FIGS. 7 and 10).
  • the transfer station 37 which in the present exemplary embodiment is arranged in the area of the underside of the lay-on drums 19, the side surfaces 23 of the lay-on drums 19 with the tear strips 10 to be transferred are arranged parallel to the top of the lifting table 36, so that the material web 11 is moved by means of the lifting table 36 is pressed against the side surfaces 23 with the tear strips 10 in order to connect the same to the material web 11.
  • the lifting table 36 and with it the material web 11 are then spaced again from the lay-up drums 19 and the material web 11 is transported further in the conveying direction, while the next tear strips are moved into the transfer station 37 and the cycle begins again.
  • FIGS. 6 and 7 also show that the lifting table 36 is mounted on a base frame 43 via two pendulum supports 42, as well as the arrangement of a station 44 for making the tear cuts 18 and any ventilation holes in the material web following the lifting table 36. Also the lifting table 36 is moved by means of a drive 45.
  • the functionality or the process flow can be described as follows:
  • a tear strip 10 is pulled parallel and simultaneously from two reels 20.
  • a short strip of paper is placed on this as a grip tip 12 at defined pitches on the adhesive side.
  • the tear strip 10 is then wound onto two hexagonal laying drums 19 lying next to each other. There are suction holes in the lay-on drums 19, which fix the tear strip 10 on its non-adhesive side.
  • the lay-up drums 19 rotate step by step (clocked) through 60°.
  • the corresponding drives 22 work independently of one another, so that if one unit fails, the other can continue to operate.
  • the machine then preferably only works at half speed.
  • the pendulum rollers 41 After hanging up, the pendulum rollers 41 are moved to the left again. This allows the material web 11 to catch up again. This means that the material web 11 is fed continuously while the placement process in the station is clocked.
  • the pendulum rollers 41 are driven by a servo motor 39 via a crank mechanism.
  • the lifting table 36 is also driven by a servo motor 45.
  • the lifting table 36 is attached to a coupling rod 47. This coupling rod 47 connects a parallelogram gear 48, at the end of which two deflection rollers 46 are attached for web guidance.
  • the rollers 46 hold the material web 11 horizontally while it is pressed against the lay-up drums 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

L'invention concerne un dispositif et un procédé pour appliquer des bandes de déchirage (10) sur une bande de matériau continue (11) pour la fabrication d'enveloppes pour des groupes de produits de l'industrie du tabac, une bande de matériau continue (16) pour des bandes de déchirage étant prélevée, de préférence en continu, d'une bobine (20), à partir de laquelle des bandes de déchirage (10) de longueur prédéterminée sont séparées, lesquelles sont ensuite appliquées à distance les unes des autres sur la bande de matériau continue (11). Selon l'invention, il est prévu que la bande de matériau (16) soit amenée en appui contre la surface latérale (21) d'un tambour d'application (19) de section polygonale et de préférence entraîné de manière cadencée, de sorte qu'une face encollée de la bande de matériau (16) soit tournée vers l'extérieur, et qu'ensuite une bande de déchirage (10) soit séparée de la bande de matériau (16) à la périphérie du tambour d'application (19), et qu'ensuite la bande de matériau (11) soit de préférence déplacée contre la surface latérale (21) du tambour d'application (19) de sorte que la bande de déchirage (10) séparée soit fixée sur la bande de matériau (11) par collage.
EP23728280.1A 2022-06-01 2023-05-17 Procédé et dispositif pour appliquer des bandes de déchirage sur une bande de matériau continue Pending EP4532189A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022113839.9A DE102022113839A1 (de) 2022-06-01 2022-06-01 Verfahren und Vorrichtung zum Anbringen von Aufreißstreifen an einer fortlaufenden Materialbahn
PCT/EP2023/063226 WO2023232472A1 (fr) 2022-06-01 2023-05-17 Procédé et dispositif pour appliquer des bandes de déchirage sur une bande de matériau continue

Publications (1)

Publication Number Publication Date
EP4532189A1 true EP4532189A1 (fr) 2025-04-09

Family

ID=86688531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23728280.1A Pending EP4532189A1 (fr) 2022-06-01 2023-05-17 Procédé et dispositif pour appliquer des bandes de déchirage sur une bande de matériau continue

Country Status (3)

Country Link
EP (1) EP4532189A1 (fr)
DE (1) DE102022113839A1 (fr)
WO (1) WO2023232472A1 (fr)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3379364A (en) 1966-07-07 1968-04-23 Reynolds Metals Co Package means
FR2198469A5 (fr) * 1972-09-06 1974-03-29 Roustang Sa
US4233331A (en) 1978-07-31 1980-11-11 American Can Company Method of securing opener key to a container using oriented polypropylene film with solventless acrylic adhesive
DE2930231A1 (de) 1979-07-25 1981-02-12 Ferrero Ohg Vorrichtung zum anbringen von aufreissstreifen an verpackungsfolien
US4317694A (en) 1980-08-27 1982-03-02 Evana Tool & Engineering Company Laminate applying machine and method
JPS6278037A (ja) 1985-09-30 1987-04-10 株式会社フジキカイ 包装用材に対する開封用テ−プの貼合装置
DE8915722U1 (de) 1989-01-13 1991-03-21 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zum Stapeln von flachen Werkstücken auf Stapelstiften eines endlosen Transportmittels
IT1288722B1 (it) * 1996-10-03 1998-09-24 Cavanna Spa Dispositivo per applicare bande di strappo
DE19914609B4 (de) 1999-03-30 2010-07-29 Focke & Co.(Gmbh & Co. Kg) Vorrichtung zum Bedrucken von Materialbahnen
DE10105486A1 (de) 2000-11-24 2002-05-29 Focke & Co Verfahren und Vorrichtung zum Herstellen von Packungen mit Außenumhüllung
ITBO20030167A1 (it) * 2003-03-25 2004-09-26 S P R Srl Gruppo per il fissaggio di nastrini di strappo su
DE102016004391B4 (de) 2015-04-09 2021-03-18 G.D S.P.A. Vorrichtung und verfahren zum aufbringen vorgummierter aufreissbändchen auf eine hüllmaterialbahn
EP3569531B1 (fr) 2018-05-03 2021-09-15 Focke & Co. (GmbH & Co. KG) Procédé et dispositif de manipulation d'une bande de bandelette d'arrachage

Also Published As

Publication number Publication date
DE102022113839A1 (de) 2023-12-07
WO2023232472A1 (fr) 2023-12-07

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