EP0149227B1 - Procédé de fabrication de paquets ou groupement d'articles emballés dans une feuille ainsi que dispositif pour la mise en oeuvre du procédé - Google Patents

Procédé de fabrication de paquets ou groupement d'articles emballés dans une feuille ainsi que dispositif pour la mise en oeuvre du procédé Download PDF

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Publication number
EP0149227B1
EP0149227B1 EP84116196A EP84116196A EP0149227B1 EP 0149227 B1 EP0149227 B1 EP 0149227B1 EP 84116196 A EP84116196 A EP 84116196A EP 84116196 A EP84116196 A EP 84116196A EP 0149227 B1 EP0149227 B1 EP 0149227B1
Authority
EP
European Patent Office
Prior art keywords
foil
film
package
tube
packages
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84116196A
Other languages
German (de)
English (en)
Other versions
EP0149227A2 (fr
EP0149227A3 (en
Inventor
Peter Silbernagel
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.)
B HAGEMANN AND Co
Original Assignee
B HAGEMANN AND Co
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
Priority claimed from DE19843401217 external-priority patent/DE3401217A1/de
Priority claimed from DE19843417341 external-priority patent/DE3417341A1/de
Application filed by B HAGEMANN AND Co filed Critical B HAGEMANN AND Co
Priority to AT84116196T priority Critical patent/ATE34541T1/de
Publication of EP0149227A2 publication Critical patent/EP0149227A2/fr
Publication of EP0149227A3 publication Critical patent/EP0149227A3/de
Application granted granted Critical
Publication of EP0149227B1 publication Critical patent/EP0149227B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/008—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material by webs revolving around articles moved along the axis of revolution
    • 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
    • B65B61/02—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/66—Inserted or applied tearing-strings or like flexible elements

Definitions

  • the invention relates to a process for the production of packages or containers packed with film, in which a package or container is conveyed by a winding device and is enveloped by a film tube formed by helically winding the film as it passes through the winding device.
  • the invention further relates to an apparatus for performing the method.
  • the strength of the stretch film means that the wrapping can later be difficult to remove from the packages.
  • the foil wrapping must be cut with scissors or a knife.
  • this is very disadvantageous for the loading of goods in sales markets, in which small packs are quickly removed, set up and offered from packaged containers, since each container has to be laboriously opened for the removal of products.
  • packages such as. B. Books that may be damaged if the film is torn open by force.
  • the invention is based on the object of specifying a method for producing packages or containers packed with film, in which the film packaging can be opened easily and in a simple manner by hand without using a knife or scissors.
  • At least one tear thread is guided in a straight line in the direction of flow of the packages or containers to one side and / or to the top of the package or container and is also enveloped by the film tube that forms, and then - on the inside of the film tube adhering - is withdrawn from a supply when the package or container is conveyed, and is cut through after the package or package has passed through the winding device,
  • a material weakening line is worked into the side of the film tube along the length of the tear thread
  • the film tube is kept at a distance from the package during the incorporation of the material weakening line.
  • the process according to the invention ensures that when the packages or containers are wrapped in film, the film packaging is given a tear thread by which it can be easily separated later.
  • the tear thread is preferably continuously and continuously withdrawn from a supply and comes to rest on the desired side or top of the packages. The actual winding process by the winding device is not affected. Depending on the size and type of the packages and containers, more than one tear thread can be fed to the packages.
  • Known, colored, narrow and flexible film strips for example made of polyvinyl chloride or polyester, are suitable as the tear thread.
  • Other embodiments are possible since in principle any thread, thread strand or strip made of textile, metal or plastic is suitable which has sufficient tensile strength.
  • Stretch films are particularly suitable as films.
  • less stretchable films can also be used, e.g. B. from cellophane, polyvinyl chloride or from various polyesters.
  • the method provides that a material weakening line is worked into the film tube along the length of the tear thread and in the area thereof.
  • the film packaging can then be cut along this line by pulling on the tear-open thread.
  • Perforation or non-perforating heat thinning can be used as material weakening lines.
  • the film tube is perforated on either side of the tear thread or weakened accordingly. This creates a strip underlaid by the tear thread.
  • Dilution lines or perforations are in the method by known devices, e.g. B. incorporated by heat wheels or spiked rollers in the film.
  • a tear thread with a surface structure promoting the severing of the film can also be used specially adapted to the use of stretch films, e.g. B. a plastic wire with a cut edge, teeth or thorns, or a film with an admixture of hard mineral granules, e.g. B. Glass that allow tearing without a line of weakness.
  • stretch films e.g. B. a plastic wire with a cut edge, teeth or thorns
  • a film with an admixture of hard mineral granules e.g. B. Glass that allow tearing without a line of weakness.
  • the perforation of the film can then be carried out in a suitable manner on the outside or top of conveyor belts which enclose the packages in the winding area of the winding device and are wrapped in film during winding.
  • the easiest way to arrange the tear thread to the packages is when the tear thread or threads are rectilinear in the direction of travel of the packages. In principle, however, it is also possible to make the tear thread run in a zigzag or undulating manner in the direction of passage.
  • the method can be used to produce packages or containers with an easily openable film tube wrapping, the film tube wrapping of which has on the inside at least one tear thread arranged in the longitudinal direction of the tube and adhering to the inside of the film.
  • the tear thread is placed on the package or container from above. Since the wrapping film tube is a relatively flexible and also pressure-compliant structure, the application of a material weakening or predetermined tear line brings with it difficulties. It was not readily possible to arrange spiked rollers or the like laterally, since the pressure exerted by the rollers either leads to perforations in the film which are too deep or hardly effective.
  • a device for carrying out the method in which there is a conveyor belt arranged below the film and above the package or bundle, with its conveying speed, via which the tear thread can be placed on the package or container from above, and that a fixed tongue is arranged below the film at least in the area in which a material weakening device in the form of a spiked roller or a heating element presses on the film from above, the tongue as Pressure surface for the latter device is used.
  • the device for carrying out the method also has a conveyor belt which presses onto the container from above, which prevents the packages or containers from migrating sideways or tipping away.
  • the film which is wound around both conveyor belts, generates only a small pressing force in the central region of the upper conveyor belt run, so that a tongue inserted there does not hinder the further sliding of the film tube in the conveying direction.
  • the spiked roller device arranged above the tongue and the foil placed on it now presses on the tongue to the right and left of the tear thread and thus performs a precisely defined perforation of the foil, so that a repeatable and adjustable material weakening line is created.
  • the winding device shown in FIG. 1 has a winding station 2, in which a film 30 jJ.m several, spaced-apart containers 1 are wound in a helical manner by means of two counter-rotating film rolls 3 and 3 ', so that the containers 1 after passing through the winding station 2 are wrapped in a film tube.
  • the film rolls are held on a torus 40, which is shown in section in FIG. 1 and is known per se.
  • stretch film is preferably used as film 30, which is pulled off from film rolls 3 and 3 'under tension.
  • the packs 1 to be packed which according to FIG. 1 consist, for example, of a cuboid combination of three boxes, are fed to the winding station 2 on a feed belt 4, the containers additionally being guided laterally by guide belts 5.
  • the containers 1 are taken over by conveyor belts 6, which abut the top and bottom of the containers 1 and convey the containers through the winding station 2.
  • the bundles 1 pass through the winding station 2 and the torus 40 in a straight line in the direction of the arrow.
  • the conveyor belt on top is not shown.
  • a tear 7 z. B. uses a narrow film made of polyvinyl chloride, which has a higher tear strength than the film 30.
  • the tear thread 7 has an adhesive layer on one side, so that after it has passed through the winding front, the tear thread 7 is pressed through the film 30 onto one of the side surfaces 32 of the container 1 projecting laterally beyond the conveyor belts 6 and then with its adhesive layer on the inside of the film 30 is liable.
  • the tear thread 7 is continuously withdrawn from the supply 8 as it passes through the winding station 2 and lies against the side surfaces 32 of the subsequent containers.
  • several tear threads can also be applied to the container 1, not only on the side but also on the top or bottom of the container.
  • the film tube is perforated on both sides of the tear thread 7 by a spiked roller 20 (shown in FIG. 4).
  • the film tube is released by the conveyor belts 6, whereupon the tube lies firmly against the container due to the pretensioning of the film 30.
  • a cutting device 34 shown in FIG. 3
  • the tube is then cut together with the tear thread 7 behind each container 1 that runs out.
  • Figure 2 shows a finished, provided with a film tube 9 container 1, which is equipped with bottles 16.
  • the plastic tube wrapping 9 holds the plastic bottles in the container, which consists of the bottles and a carrier carton that is open on the side surfaces and the top, without being displaced and firmly.
  • the end faces 14 of the packaging which showed the direction of flow during the winding process, and on which the film tube was severed, are only covered by the film in the edge area.
  • the film tube covering 9 carries the tear thread 7, which is glued to the inside of the film 30, on the inside at the level of a narrow edge strip 18 on the lower edge of a side surface 32 of the cardboard packaging.
  • the tear thread 7 runs parallel to the edge strip 18 towards the ends of the film tube section.
  • Material weakening lines 11 (perforation lines) run on both sides of the tear thread 7, along which the film tube covering 9 can easily be separated when the pull thread end 7 'is pulled.
  • the tear thread is dyed to clearly mark the tearing point of the container.
  • the winding device shown in FIG. 3 has a winding station 2, in which the film 30 J.Lm container 1 is wrapped by a film tube after passing through the winding station 2 by means of two counter-rotating film rolls 3 and 3 '.
  • So-called stretch film is preferably used as film 30, which is pulled off from film rolls 3 and 3 'under tension.
  • the packs 1 to be packaged are fed to the winding station 2 on a feed belt 4, the packs additionally being guided laterally by guide belts 5.
  • the containers 1 are taken over by conveyor belts 6, one of which is placed on the top 33 of the containers 1 and conveys the containers through the winding station.
  • the conveyor belts are so-called double conveyor belts (cf. US Pat. No. 4,317,322). Such a double conveyor belt 6 is shown in section in FIG.
  • the film tube After passing through the winding station 2, the film tube is perforated by a spiked roller 20 on both sides of the tear thread 7.
  • the perforation takes place on the upper run 21 of the upper conveyor belt 6, which is enveloped by the film 30 together with the containers 1. An injury to the container itself by the perforation device is therefore ruled out (see FIG. 4).
  • a fixed, elongated tongue 12 is provided, on which the spiked roller 20 presses from above; in other words: the tongue 12 serves as a pressure surface for the material weakening device (spiked roller 20).
  • the upper (15) of the two double conveyor belts is additionally provided with a groove 13 which is let into the center of the upper side and in which the tongue runs and is guided so closely that the tongue 12 results in a belt stabilizing device relative to the belt 15.
  • the over the band and the tongue reaching film 30 slips over the fixed tongue 12 without causing damage, since in the middle of the Tape practically no vertical force is exerted by the film.
  • FIG. 5 shows a tear thread which is particularly suitable for stretch films and which has a surface structure which promotes the severing of the film.
  • the tear thread 7 consists of polyvinyl chloride with metal granules 17 sprinkled in, which protrude somewhat in particular at the edge of the film and make the film itself tear more easily.
  • the tear thread 7 can be both self-adhesive and consist of a material that adheres specifically to the wrapping film used (stretch film) without being coated in a particularly adhesive manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Packages (AREA)

Claims (5)

1. Procédé pour réaliser des paquets ou des lots d'articles enveloppés dans de la feuille, sur lequel un paquet ou un lot d'articles (1) est transporté au travers d'un dispositif d'enroulement (2) et, lors de la traversée de ce dispositif (2), est enveloppé par une gaine de feuille formée par enroulement en hélice de la feuille (30), caractérisé
par le fait qu'avant le front d'enroulement (31) progressant relativement au paquet (1), on amène, rectilinéairement suivant la direction de passage des paquets ou des lots d'articles, à chaque fois le long du côté et/ou du dessus du paquet ou du lot d'articles (1), au moins un fil de déchirage (7) qui est enveloppé par la gaine en feuille en cours de formation, après quoi, alors qu'il adhère au côté intérieur de cette gaine, ce fil de déchirage est tiré d'une réserve (8) au fur et à mesure de la progression du paquet ou du lot d'articles (1) et est sectionné après que le paquet ou le lot d'articles (1) a traversé le dispositif d'enroulement ;
par le fait qu'une ligne d'affaiblissement (11) est aménagée dans la gaine en feuille, sur la longueur du fil de déchirage (7), latéralement à celui-ci ;
et par le fait qu'au cours de l'aménagement de la ligne d'affaiblissement, la gaine en feuille est maintenue à distance du paquet.
2. Procédé selon revendication 1, caractérisé par le fait que la feuille utilisée est une feuille extensible.
3. Dispositif pour mettre en ceuvre un procédé de réalisation de paquets ou de lots d'articles emballés par des feuilles, dans lequel un paquet ou un lot d'articles (1) est transporté au travers d'un dispositif d'enroulement (2) qui, pour l'essentiel, constitue en au moins un rouleau de feuille (3) tournant par rapport aux paquets ou aux lots d'articles (1) et en un dispositif de transport, ce paquet ou ce lot d'articles (1) étant, lors de son passage au travers du dispositif d'enroulement (2), enveloppé par une gaine en feuille formée par enroulement en hélice de la feuille (30),
caractérisé par le fait qu'il y a, en dessous de la feuille et au-dessus du paquet ou du lot d'articles (1), une bande transporteuse (6) se déplaçant à la vitesse de transport de ce paquet ou de ce lot, bande sur laquelle un fil de déchirage (7) est appliqué par le haut sur le paquet ou le lot d'articles (1), et par le fait qu'en dessous de la feuille (30) est agencée une languette fixe (12), située au moins dans la région où un dispositif (10) d'affaiblissement de matière, ayant la forme d'un rouleau à piquants (20) ou d'un élément chauffé, appuie par le haut sur la feuille (30), la languette (12) servant de surface d'appui pour le dispositif nommé en dernier.
4. Dispositif selon revendication 3, caractérisé par le fait que la languette (12) s'étend sur toute la. longueur de la bande transporteuse (6) et sert en même temps de stabilisateur de marche de cette bande.
5. Dispositif selon revendication 4, caractérisé par le fait que la languette (12) passe dans une rainure (13) de la bande (6), rainure qui est aménagée en position médiane dans la face supérieure de la bande (6).
EP84116196A 1984-01-14 1984-12-22 Procédé de fabrication de paquets ou groupement d'articles emballés dans une feuille ainsi que dispositif pour la mise en oeuvre du procédé Expired EP0149227B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84116196T ATE34541T1 (de) 1984-01-14 1984-12-22 Verfahren zur herstellung von mit folie eingepackten packstuecken oder gebinden sowie vorrichtung zur durchfuehrung des verfahrens.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19843401217 DE3401217A1 (de) 1984-01-14 1984-01-14 Verfahren zur herstellung von mit folie eingepackten, leicht oeffenbaren packstuecken oder gebinden sowie nach dem verfahren hergestellte packstuecke oder gebinde
DE3401217 1984-01-14
DE19843417341 DE3417341A1 (de) 1984-05-10 1984-05-10 Vorrichtung zur durchfuehrung eines verpackungsverfahrens
DE3417341 1984-05-10

Publications (3)

Publication Number Publication Date
EP0149227A2 EP0149227A2 (fr) 1985-07-24
EP0149227A3 EP0149227A3 (en) 1985-08-07
EP0149227B1 true EP0149227B1 (fr) 1988-05-25

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EP84116196A Expired EP0149227B1 (fr) 1984-01-14 1984-12-22 Procédé de fabrication de paquets ou groupement d'articles emballés dans une feuille ainsi que dispositif pour la mise en oeuvre du procédé

Country Status (3)

Country Link
US (2) US4655028A (fr)
EP (1) EP0149227B1 (fr)
DE (1) DE3471458D1 (fr)

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US5507429A (en) * 1995-09-18 1996-04-16 Arlin; Edward M. Tamper-evident shrink band for containers
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US7160096B2 (en) * 2003-10-24 2007-01-09 Sealed Air Corporation Perforation mechanism for a foam-in-bag cushion and method of use
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US7699171B2 (en) * 2004-11-20 2010-04-20 Consolidated Container Company Lp Stackable containers and methods of manufacturing, stacking, and shipping the same
US20070039437A1 (en) * 2005-08-19 2007-02-22 Lineberry Andrew J System for cutting and wrapping thermoplastic materials
FI20096129A0 (fi) * 2009-11-02 2009-11-02 Cross Wrap Oy Menetelmä ja laite pakattujen paalien valmistamiseksi
US8356456B2 (en) * 2010-03-04 2013-01-22 Douglas Machine Inc. Apparatus for adjustable wrapping
ITMI20131550A1 (it) * 2013-09-20 2015-03-21 Area S R L Apparecchiatura per l'imballaggio di bottiglie con pellicola sottile di materiale plastico estensibile.
CN106275540B (zh) * 2015-06-04 2018-12-28 深圳市富云帝科技有限公司 薄膜包装机及其包装工艺
ITUB20160579A1 (it) * 2016-02-09 2017-08-09 Colines Spa Metodo e macchina di imballaggio in pellicola estensibile di prodotti alimentati in continuo
ITUB20160594A1 (it) * 2016-02-09 2017-08-09 Colines Spa Metodo e macchina di imballaggio in pellicola estensibile di prodotti alimentati a gruppi
DE102016106004A1 (de) 2016-04-01 2017-10-05 Krones Ag Vorrichtung und Verfahren zum Winkel-Geschwindigkeitsbasierten Verpacken von Stückgutzusammenstellungen
US20180255951A1 (en) * 2017-03-10 2018-09-13 Engineered Floors, Llc Rug and methods of manufacturing and packaging
JP7369510B2 (ja) * 2017-10-16 2023-10-26 大倉工業株式会社 ストレッチフィルムを用いたスリーブ包装方法、スリーブ包装用ストレッチフィルム、およびスリーブ包装体の製造方法
IT201900001349A1 (it) * 2019-01-30 2020-07-30 Fb Balzanelli S P A Metodo per il confezionamento di un tubo avvolto in bobina fasciato con un film estensibile

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Also Published As

Publication number Publication date
US4729205A (en) 1988-03-08
DE3471458D1 (en) 1988-06-30
US4655028A (en) 1987-04-07
EP0149227A2 (fr) 1985-07-24
EP0149227A3 (en) 1985-08-07

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