EP0234165A1 - Verfahren und Vorrichtung zur Herstellung eines Schraubverschlusses für Behälter mit Hals mit Aussengewinde - Google Patents

Verfahren und Vorrichtung zur Herstellung eines Schraubverschlusses für Behälter mit Hals mit Aussengewinde Download PDF

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Publication number
EP0234165A1
EP0234165A1 EP86420217A EP86420217A EP0234165A1 EP 0234165 A1 EP0234165 A1 EP 0234165A1 EP 86420217 A EP86420217 A EP 86420217A EP 86420217 A EP86420217 A EP 86420217A EP 0234165 A1 EP0234165 A1 EP 0234165A1
Authority
EP
European Patent Office
Prior art keywords
container
neck
sheath
heat
skirt
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
EP86420217A
Other languages
English (en)
French (fr)
Other versions
EP0234165B1 (de
Inventor
Albert Scheidegger
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.)
Ets Scheidegger W & Cie SA
Original Assignee
Ets Scheidegger W & Cie SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR8601408A external-priority patent/FR2593472B2/fr
Application filed by Ets Scheidegger W & Cie SA filed Critical Ets Scheidegger W & Cie SA
Publication of EP0234165A1 publication Critical patent/EP0234165A1/de
Application granted granted Critical
Publication of EP0234165B1 publication Critical patent/EP0234165B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/54—Caps or cap-like covers made of shrinkable material or formed in situ by dipping, e.g. using gelatine or celluloid
    • 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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
    • B65D55/06—Deformable or tearable wires, strings, or strips; Use of seals, e.g. destructible locking pins
    • B65D55/08—Annular elements encircling container necks
    • B65D55/0818—Destructible or permanently removable bands, e.g. adhesive
    • B65D55/0854—Shrink-film bands

Definitions

  • This stopper is of the type comprising a cover comprising a cylindrical ferrule intended to be engaged in the neck of the container and a peripheral gripping edge to which is assembled a skirt in which is fitted a thread screwable on that of the neck.
  • the cover is made of cork or synthetic material and the skirt belongs to an overcap capsule, generally made of aluminum, initially smooth and in which the thread is formed by knurling after it has been placed on the neck previously blocked by the operculum, the collar then serving as a punch.
  • This closure method uses complex means and is therefore expensive.
  • the present invention aims to provide a screw cap, simple and inexpensive to make, and which can be reused after its first opening.
  • the skirt is constituted by a section of sheath made of unidirectionally heat-shrinkable plastic material, namely circumferentially, the forming of its thread being carried out by heat-shrinking after being placed on the threaded neck of container.
  • the screw cap is perfectly adapted to the configuration and the geometry of the neck of the container and although its skirt is made in a sheath of small thickness, it has, thanks to the thread with which it is provided, sufficient rigidity allowing its screwing on the threaded neck.
  • the sheath section is constituted by a preform comprising, facing the threaded part of the container, a corrugated zone whose developed length, measured longitudinally, corresponds substantially to the developed length of the threaded part on which it is plated during the subsequent heat shrinkage.
  • the sheath section is preformed to present locally and longitudinally a reserve of material allowing, in the subsequent heat-shrinking phase, to fully match the profile of the sipres of the net therefore to form a regular net despite the unidirectionality of the retraction of the material favoring the circumferential retraction and providing a small longitudinal retraction normally disrupting the formation of the net.
  • the sheath section is constituted by a preform comprising a return covering the cover and locally a groove constituting a detent and positioning notch on the container.
  • Such a notch secures the skirt, already linked or not linked to the lid, with the container and prevents, between its deposition on the container and the final heat-shrinking shrinking it on it, the vibrations of the transport or the decompression of the gases in the container. allowing the seal to escape from the container.
  • the method of manufacturing the stopper according to the invention consists in making the thread of its skirt by heat-shrinking, after the sheath section has been placed on the neck of the container, previously filled and capped.
  • the part of the sheath in which the net is to be formed is heated, the rest of the sheath being heated subsequently.
  • the manufacturing process consists, before setting up the sheath section on the container, in preforming it by making it undergo, by heat-shrinking, a first deformation giving it a cylindrical shape of internal diameter allowing its introduction on the container and locally forming a ringed area projecting outside.
  • This preform can be produced before depositing on the container closed by the cover or at the same time as it is linked to the cover to form an assembly which can be subsequently deposited on the container.
  • the stopper comprises, on the one hand, a cover 3 and, on the other hand, a cylindrical skirt 4.
  • the cover 3 carries, on its inner face, a cylindrical ferrule 5 able to engage in the neck of the container and has a peripheral edge 6 capable of covering the upper edge 2a of the neck 2 of the container and having, in its upper part, longitudinal ridges 7.
  • the neck 2 of the container has a plurality of threads 8 with a steep slope, intended to allow the screwing and unscrewing of this plug.
  • the cylindrical skirt 4, which is assembled to the cover 3 and which is intended to be screwed onto the threads 8 of the neck 2 of the container, is, according to the invention, obtained from a section of a cylindrical sheath 4a made of mono-oriented synthetic material, ie unidirectionally heat-shrinkable.
  • the sheath is produced in such a way that the heat shrinkage occurs circumferentially and that it can therefore, when it is heated to the heat shrink temperature, be tightened radially on the neck of the container.
  • the circumferential retraction can go up to 50% while that longitudinal is of the order of 5% with a vinyl chloride skirt having a thickness between 100 and 200 microns and a heat shrinkage being carried out between 300 and 400 ° C, between one and a few seconds.
  • This sheath 4a is engaged on the neck 2 of the container, previously filled after fitting the cover 3, so that its upper end 4b is at a level slightly higher than that of the upper face of the cover 3, as illustrated in phantom in Figure 1.
  • the threaded skirt thus obtained has, thanks to its thread forming a stiffening rib and despite its small thickness, a very satisfactory rigidity allowing, after the first opening of the container, to reuse it several times to ensure the filling of the container by screwing on the neck of the latter.
  • the intermediate zone of sheath section 4a in which the plug threads are to be formed is heated alone, prior to the ends 4b and 4c, so as to allow heat shrinkage of this intermediate zone before that of the ends of the sheath section 4a.
  • these ends are then heat-shrunk by heating.
  • the sheath section is pre-assembled with the cover 3 so as to produce a set of cover 3-skirt 4 which is easy to store and send. and easier to install on the necks of containers to be corked by the user than when these two elements are delivered separately.
  • the cover 3 and the sheath section are placed on a support mandrel 11, slightly frustoconical, with a small base on the side of the upper end to facilitate removal of the plug after this pre-assembly.
  • the upper end of this mandrel 11 has a cylindrical cavity 12, centered on its axis of revolution, intended to house the cylindrical shell 5 while ensuring the centering of the cover 3.
  • This mandrel 11 is intended to allow pre-assembly from the ferrule 5 to the cover 3 by a first heat-shrinking, during which the ferrule comes to embrace and pinch the peripheral gripping edge 6 of the cover 3 and thus carry out their pre-assembly.
  • the upper edge of the mandrel 11 has a step which is formed between the peripheral grip edge 6 of the cover 3 and the corresponding zone of the mandrel 11, an annular groove 13 in which the skirt 4 of the plug penetrates, at least partially during this first heat-shrinking, to form a notch 14.
  • the assembly thus produced can then easily be stored and shipped to users, that is to say manufacturers who plug the containers previously filled.
  • the capping operation from this pre-assembled assembly cover 3-skirt 4 is obviously greatly simplified.
  • the forming of the skirt 4 of the plug is then carried out by these manufacturers and by a second heat-shrinking conforming to that described with reference to the first embodiment of this process.
  • the notch snaps into a groove in the container and ensures the positioning of this assembly on the container until the final heat shrinkage.
  • the use of a detent and positioning notch can also be used with a preform which, independent of the cover but comprising a return covering this cover, is linked to the latter during the final retraction. In this case, the preform contributes to the mantle of the lid on the container from its installation to the final heat shrinkage.
  • this cap can very easily be provided with a tamper-evident ring.
  • the neck 2 of the container has, at its base, a rib 2b and that the lower edge 4c of the cylindrical sheath section 4a intended to constitute the skirt 4 of this plug is, when it is put in place, located below the rib 2b of the neck 2 of the container, a precut line 9 formed on the skirt 4 at the level of the rib 2b allowing the constitution of a tamper-evident ring 4d tearable at the time of the first opening of the container.
  • the stopper has a tearable tamper-evident ring 4d linked to the base of the skirt 4 of the stopper by a pre-cut line 9, it is advantageous to provide a container neck 2 in which the wall of revolution of the rib 2b provided for the attachment of the tamper-evident ring 4d is frustoconical, with its small base oriented towards the open end of the neck 2, as shown in dashed lines in FIG. 1.
  • the precut line 9 must be located on the frustoconical wall of the rib 2b but as close as possible to its large base.
  • This arrangement has the advantage to provide the skirt 4 of the stopper with a flared free end facilitating its engagement on the neck 2 of the container during successive recaps of this container.
  • the neck 2 of the container carried a plurality of threads 8 with a steep slope, which has the advantage of allowing rapid unscrewing and screwing of the cap on the neck 2. It is obvious that one could just as well provide a single net with several turns.
  • the sheath section 4a instead of being delivered in the form of a cylindrical section having a square cross section with curvilinear sides, as shown in FIG. 3, is preformed to have the shape of the preform 20 shown in FIG. 4.
  • This preform 20 which, in cross section, has a circular shape with a diameter greater than the largest diameter of the neck of the container 2, so that it can be slid over this neck, has locally a corrugated zone A.
  • the preform 20 When the preform 20 is placed on the neck of the container, it has, opposite the net of this container, an accumulation of material which, when this container is subjected to the heat-shrinking operation, allows it to perfectly fit the contours of the net, despite the unidirectionality of the shrinkage of the sheath.
  • the upper part of the skirt covers the peripheral edge 6 of the cover 3, to which it is linked, while its central part perfectly follows the contours of the container, thus forming a regular net ensuring a good connection with the container and which can be reused without problem when filling it.
  • the container has, at the lower part of its neck 2, a shoulder 22.
  • FIG. 7 A description will now be given of the device for producing the preform 20 and for distributing it on containers 23 in continuous movement on a conveyor 24, as shown in FIG. 7.
  • 25 denotes a training station. and distribution of sheath sections carrying means 27 distributing the sections 4a by spacing them relative to each other.
  • Such a well-known device is, for example, of the type described in French patent 2,503,689.
  • the device according to the invention comprises an endless conveyor 28 whose upper strand moving in the direction of arrow 29, goes from the distribution station 7 to a heat shrink tunnel 30.
  • the lower strand of the conveyor moves in opposite direction until 'at a station 30 for ejecting the preforms 20.
  • the conveyor belt is integral with mandrels 33 projecting outwards perpendicularly to it. These mandrels are regularly spaced from one another and are capable of receiving a section of sheath 4a, delivered by the distribution station 27.
  • each mandrel is composed of a barrel 34, a central core 35, a sleeve 36 slidably mounted in the annular space 37 formed between the core and the barrel and an outer ring 38 slidably mounted on the barrel 34.
  • This barrel is linked by its base 39, to the two notched belts 40 constituting the transporter.
  • the connection of the base with each of the belts is ensured by a transverse pin 42 which is housed in the gap between teeth of the corresponding belt so as not to stiffen the belt and allow it to marry the return toothed pulleys.
  • the core 35 is tubular and is linked to the barrel 34 by a transverse pin 42.
  • a head 43 which is in the extension of the barrel 34, having the same diameter as it, is spaced from this barrel to form a housing 44 in which are arranged two annular springs 45.
  • the radial displacement necessary to make them protrude from the mandrel 33 is provided by the sleeve 36 whose free end is bevelled 36a and the lower end of which is provided with one and preferably with two fingers 46 passing through the barrel by oblong slots 47.
  • the sliding ring 38 is integral with a stud 49 which, transversely disposed in a through-hole 50 of the barrel 34, is subjected to the action of a return spring 52 disposed in an axial housing 53 of the core 35.
  • This ring 38 is therefore constantly biased by the spring to occupy the position shown in Figure 8, corresponding to its position for positioning the sheath section 4a. It has bearing surfaces 54 capable of cooperating with ramps 55 represented schematically by the dashed line in FIG. 7.
  • the heat-shrinking tunnel 32 is fixed on a mobile support 56 which is connected to a fixed support 57 linked to the chassis of the device by means 58 such as jacks able to vertically move the support 56 to bring it into an erasing position. as soon as the conveyor 28 is stopped.
  • the heat-shrinking tunnel is linked by a flexible pipe 60 to a hot air blower 62.
  • means are provided on the conveyor 24 to synchronize, in the preform ejection zone, the containers 23 with the mandrels 33
  • These means consist of longitudinal screws 63, the pitch of the turns of which corresponds to the interval between container and between mandrel 33.
  • each sheath section 4a delivered by the dispensing means 27, is taken up by a mandrel 33 passing under this dispensing station, mandrel whose springs 45 are then retracted. As it advances, the mandrel comes in the vicinity of the ramps 48 which control the extraction of the springs 45. These thus come into contact with the wall of the section.
  • the heat supplied by this tunnel ensures the retraction of the section on the barrel 34 and the head 43 and the formation of two beads constituting the ringed area A.
  • each container 23 with the preform 20 passes through a heat-shrinking tunnel 65 ensuring the retraction of the preform from the threaded part of the container.
  • This device can also be used to form either preforms alone, linked to the lids during final retraction, or assemblies composed of the lids 3 and the preform 20 in order to form capsules which can be dispensed later on the container necks.
  • the head 43 of each of the mandrels comprises a housing for receiving and positioning a cover 3 and the device comprises a cover distributor arranged upstream of the distributor 27 of sheath sections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Closures For Containers (AREA)
  • Sealing Of Jars (AREA)
EP86420217A 1986-01-27 1986-08-25 Verfahren und Vorrichtung zur Herstellung eines Schraubverschlusses für Behälter mit Hals mit Aussengewinde Expired - Lifetime EP0234165B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8601408 1986-01-27
FR8601408A FR2593472B2 (fr) 1985-08-01 1986-01-27 Bouchon vissable pour recipient muni d'un col equipe de filet exterieur, son procede de fabrication et sa mise en oeuvre

Publications (2)

Publication Number Publication Date
EP0234165A1 true EP0234165A1 (de) 1987-09-02
EP0234165B1 EP0234165B1 (de) 1990-02-07

Family

ID=9331710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86420217A Expired - Lifetime EP0234165B1 (de) 1986-01-27 1986-08-25 Verfahren und Vorrichtung zur Herstellung eines Schraubverschlusses für Behälter mit Hals mit Aussengewinde

Country Status (4)

Country Link
US (2) US4803829A (de)
EP (1) EP0234165B1 (de)
JP (1) JPS62220487A (de)
DE (1) DE3668867D1 (de)

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US4979351A (en) * 1990-02-20 1990-12-25 Eastman Kodak Company Packaging method
AU656776B2 (en) * 1991-05-21 1995-02-16 Sweetheart Cup Company Inc. Tamper evident container assembly
US5490827A (en) * 1991-05-21 1996-02-13 Sweetheart Cup Company, Inc. Tamper evident container and related apparatus
US6735990B1 (en) * 1992-01-24 2004-05-18 Acco Brands, Inc. Computer physical security device
US5658228A (en) * 1992-04-30 1997-08-19 Sweetheart Cup Company, Inc. Tamper evident container and related apparatus
US5654022A (en) * 1995-06-07 1997-08-05 Popcorn Design Llc Heat Shrink capsule for closing flanged bottle tops
DE19739327C2 (de) * 1997-09-09 1999-07-01 Fehland Engineering Gmbh Vorrichtung zum Verschließen von Getränkebehältern mit Verschlußkappen
US6564531B2 (en) * 1999-04-07 2003-05-20 Dtl Technology Limited Partnership Blow molded container with memory shrink closure attachment and method of making the same
US6263940B1 (en) 1999-04-21 2001-07-24 Axon Corporation In-line continuous feed sleeve labeling machine and method
FR2809706B1 (fr) * 2000-06-05 2002-12-13 Christophe Mortreux Procede pour maintenir reunis au moins deux elements
FR2811300B1 (fr) * 2000-07-06 2003-02-14 Pechiney Emballage Alimentaire Capsules de surbouchage a jupe roulee
FR2841224B1 (fr) * 2002-06-19 2004-08-06 Sleever Int Enveloppe d'emballage d'objet(s) en materiau thermoretractable a motif en relief
ITMI20022324A1 (it) * 2002-10-31 2004-05-01 Enoplastic S P A Procedimento per formare ed applicare un tappo-capsula di garanzia a recipienti con bocca filettata, e tappo capsula cosi' ottenuto.
US7028452B2 (en) * 2004-08-31 2006-04-18 Benison & Co., Ltd. Packaging device for fitting and heat-shrinking packaging film
WO2006082969A1 (ja) * 2005-02-07 2006-08-10 Yuyama Mfg. Co., Ltd. バイアル瓶キャッピング装置およびバイアルの瓶キャッピング方法
JP4243259B2 (ja) * 2005-04-13 2009-03-25 サントリー株式会社 包材装着方法および包材装着装置
US7438250B2 (en) * 2005-11-23 2008-10-21 Suncast Corporation Low entry hose reel device with elevated point of operation
ITBO20070044A1 (it) * 2007-01-25 2008-07-26 Marchesini Group Spa Apparato per la tappatura di flaconi e metodo per attuare tale tappatura
US8984846B2 (en) * 2010-12-26 2015-03-24 Oriya KLEIN Container closure tool
CA2872759C (en) * 2012-05-09 2020-04-21 Schreiner Group Gmbh & Co. Kg Closure element for a receptacle
USD739731S1 (en) 2013-10-03 2015-09-29 Anheuser-Busch, Llc Metal beverage bottle
USD739732S1 (en) 2013-10-03 2015-09-29 Anheuser-Busch, Llc Metal beverage bottle
DE102014104323A1 (de) * 2014-03-27 2015-10-01 Khs Gmbh Kronkorkenverschluss, Verschlussverfahren und Verschlussvorrichtung für Behälter
CN105039878B (zh) 2014-04-30 2017-11-07 美铝美国公司 具有高可成形性的铝板和所述铝板制成的铝容器
US11390408B2 (en) * 2020-11-24 2022-07-19 Axon Llc System and method for applying tubular bands to containers utilizing angled band ejection

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DE2804851A1 (de) * 1978-02-04 1979-08-09 Loos Co Gmbh Metallkapsel Flaschenkapsel aus kunststoff- schrumpffolie und verfahren zu ihrer herstellung
GB2022064A (en) * 1978-06-05 1979-12-12 Baxter Travenol Lab Closure system for containers
FR2436008A1 (fr) * 1978-09-14 1980-04-11 Fuji Seal Ind Co Ltd Procede et machine permettant d'ouvrir un tube de film cylindrique et de le placer sur un objet
EP0038468A1 (de) * 1980-04-10 1981-10-28 Tetra Laval Holdings & Finance SA Flaschenverschluss
US4387553A (en) * 1981-01-02 1983-06-14 Strub Eric W Banding apparatus
FR2560156A1 (fr) * 1984-02-27 1985-08-30 Cebal Dispositif de surbouchage etanche et inviolable et procede de realisation

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CH646398A5 (de) * 1980-03-28 1984-11-30 Obrist Ag Albert Verfahren und vorrichtung zum anschrumpfen einer verschlusskappe aus kunststoffmaterial auf eine behaeltermuendung.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2804851A1 (de) * 1978-02-04 1979-08-09 Loos Co Gmbh Metallkapsel Flaschenkapsel aus kunststoff- schrumpffolie und verfahren zu ihrer herstellung
GB2022064A (en) * 1978-06-05 1979-12-12 Baxter Travenol Lab Closure system for containers
FR2436008A1 (fr) * 1978-09-14 1980-04-11 Fuji Seal Ind Co Ltd Procede et machine permettant d'ouvrir un tube de film cylindrique et de le placer sur un objet
EP0038468A1 (de) * 1980-04-10 1981-10-28 Tetra Laval Holdings & Finance SA Flaschenverschluss
US4387553A (en) * 1981-01-02 1983-06-14 Strub Eric W Banding apparatus
FR2560156A1 (fr) * 1984-02-27 1985-08-30 Cebal Dispositif de surbouchage etanche et inviolable et procede de realisation

Also Published As

Publication number Publication date
US4803829A (en) 1989-02-14
US4947627A (en) 1990-08-14
EP0234165B1 (de) 1990-02-07
DE3668867D1 (de) 1990-03-15
JPS62220487A (ja) 1987-09-28

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