EP2272602A2 - Procédé et dispositif destinés à la fabrication de couvercles à ouverture facile - Google Patents

Procédé et dispositif destinés à la fabrication de couvercles à ouverture facile Download PDF

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Publication number
EP2272602A2
EP2272602A2 EP10006268A EP10006268A EP2272602A2 EP 2272602 A2 EP2272602 A2 EP 2272602A2 EP 10006268 A EP10006268 A EP 10006268A EP 10006268 A EP10006268 A EP 10006268A EP 2272602 A2 EP2272602 A2 EP 2272602A2
Authority
EP
European Patent Office
Prior art keywords
sealing surface
tear
edge
open
lid
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
EP10006268A
Other languages
German (de)
English (en)
Other versions
EP2272602B1 (fr
EP2272602A3 (fr
Inventor
Marcel Oberholzer
Peter Schreiber
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.)
Soudronic AG
Original Assignee
Soudronic AG
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 Soudronic AG filed Critical Soudronic AG
Publication of EP2272602A2 publication Critical patent/EP2272602A2/fr
Publication of EP2272602A3 publication Critical patent/EP2272602A3/fr
Application granted granted Critical
Publication of EP2272602B1 publication Critical patent/EP2272602B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44—Making closures, e.g. caps
    • B21D51/443—Making closures, e.g. caps easily removable closures, e.g. by means of tear strips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1043—Subsequent to assembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49936—Surface interlocking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/53787—Binding or covering
    • Y10T29/53791—Edge binding

Definitions

  • the invention relates to a method for the production of tear-open lids, in which a cover ring is provided which has a beaded edge and a sealing surface adjacent to the beaded edge, which adjoins the cover ring opening, and then a tear-open foil is sealed onto the sealing surface. Furthermore, the invention relates to a tear-open lid according to claim 7 and to an apparatus for producing tear-open lids according to claim 9.
  • lid for can or box-like packaging as on the top of the package permanently attached metal lid, which form a discharge opening, which is closed until the first use of the package contents by means of a tearable film which has been applied by heat sealing on the lid.
  • a tearable film which has been applied by heat sealing on the lid.
  • the tearing film which is also referred to as a sealing film, may e.g. be a plastic film or plastic-metal composite film.
  • An additional, arranged on the tear-open lid made of plastic makes the packaging during the period of use of the contents again closed. To open the tear-open lid or to tear off the sealed-on foil from the sealing edge of the lid ring, this usually has a tear-open tab.
  • FIGS. 1 to 6 serve to explain manufacturing steps.
  • the film In tear-open plastic or plastic-metal composite films, the film often has a low voltage after the completion of the lid, or it forms over the opening of the cover ring waves, which is perceived by the customers of the tear-open as a defect.
  • WO 2005/019047 shows a Aufreissdeckel, in which the sealing edge is bent directly subsequent to the beaded edge upwards toward the upper edge of the lid. This is intended to improve the holding force of the tear-open film on the edge of the seal.
  • WO 2005/005277 also shows a tear-open, in which the sealing edge is bent directly subsequent to the beaded edge upwards. This is also intended to improve the holding power of the tear-open film by avoiding peeling forces.
  • WO 2007/045385 a tear-open lid with sealing surface bent directly after the beaded edge.
  • the invention is based on the object to provide an improvement in tear-open, which should avoid the occurrence of waves in the tear-open at the finished tear-open.
  • a portion of the sealing surface is bent upwards. As a rule, a bend upwards by a few degrees with respect to the horizontal, around the Avoid waves in the tear-open film due to their tension.
  • FIG. 1 shows a schematic side view of an apparatus 1 for the production of tear-open.
  • a conveyor 10, 13, 14 conveys lid parts and the finished lid in the conveying direction, which is indicated by the arrow C, from the beginning of the device at the stack 11 to the end of the device where the lid via slides into the trays 16 or 17 arrive. From the stack 11 lid parts are stacked in a known manner and get into the conveyor.
  • This can have two each individually arranged laterally of the objects long rails 10 which lift the lying on shelves 10 'and in the stations 3 to 9 cover parts or cover when lifting the rods 10 by means of the drive 14 in the direction of arrow A upwards and then displace them forward by an amount in the direction of arrow B (rectified like the arrow C) by the crank drive 13 by an amount in the forward direction.
  • the rods are moved in the direction of the arrow A down while the lid parts and lid are in turn stored on their filing points.
  • the rods 10 are then moved backwards under the article storage positions in the direction of arrow B against the arrow C to then perform the process described again.
  • the cover parts or cover rest between the transport on their storage positions or are located in the processing stations and are processed there.
  • the renewed promotion preferably a known conveyor with two timing belt according WO 2006/017953 be used.
  • Such endless belt drive is provided in the necessary length for the number of processing stations and the stepwise, synchronized with the processing stations timing belt movement is effected by a stepper motor or servo motor which drives the timing belt by sprockets.
  • the Conveyor with timing belt allows the production of lids with a higher number of cycles of eg 200 lids per minute.
  • FIG. 2 shows stacked metal lid blanks 20 'as ready in the stack 11 at the beginning of the conveyor.
  • These blanks 20 ' are, for example, round metal discs of, for example, 11 cm in diameter. Of course, other basic shapes, such as square or rectangular discs and other diameters are readily possible.
  • the blanks 20 ' have already been preformed at its outer edge in a processing machine, not shown, that a bead 24 has been formed with its edge 24' and its upper side 27, which also forms the top 27 of the tear-open. This beading 24 is used in a known manner for connecting the tear-open with the jacket of the container, which is closed after its filling by the lid.
  • FIG. 3 to 6 only one sector of the cover ring or the lid is shown in each case in order to simplify the drawings.
  • the first processing station 3 of FIG. 1 is punched by punching with top and bottom tool an opening 29 in the disc, which in FIG. 3 it can be seen in which the edge of the opening is denoted by 21 and the punched round disc with 23.
  • This disc 23 enters the container 12 as waste FIG. 1 , This results in an annular cover part 20 or cover ring 20 having an opening 29 which forms the removal opening of the finished cover.
  • the punching processing station 3 is - as is the case with the other stations - driven by a drive 15.
  • the edge 21 is pulled down and reshaped, whereby, for example, the in FIG.
  • the tear-open film may be a foil-base or filling material-side hot-seal lacquer layer followed by the aluminum layer and the top-side PET layer.
  • Other embodiments are known in the art and can be used in the context of the present invention.
  • round foil blank 25 is usually punched out in the station 5 from a wide film web and placed over the opening 29 of the cover ring and through the sealing station, the film at the edge of the opening or on the sealing surface 26 of the cover ring 20th pressed under heat, so that the film 25 is sealed to the metal cover ring 20 by melting and subsequent cooling of the sealable layer.
  • the tear-open lid 28 is formed from cover ring and tear-open film.
  • the tab can furthermore be bent and fastened in a processing station 8, so that it comes to rest on the lid in a defined position.
  • the order of the stations 7 and 8 can also be reversed.
  • a state-of-the-art test station 9 which is also to be designated as a processing station, the now finished covers are subjected to a test, which as a rule comprises a leak test for the tear-off film 25 applied to the cover. If the film is tightly mounted on the cover ring, the cover enters the receptacle 16 for the finished cover. If a leak is detected, the lid passes over the other slide shown in the waste container 17th
  • the tear-open film is tensioned after it has been sealed onto the cover ring.
  • This can, for example, in the following on the sealing station 5 station 7 of FIG. 1 be made.
  • the FIGS. 7 and 8 show a first and a second example of how the processing of the lid 28 can be done. Same reference numerals designate the same elements again. The reference to a "horizontal” is in this sense that while the lid would rest with its underside on a horizontal surface. From “above” or “below” is spoken in this sense, so that on the in the FIGS. 7 to 9 shown position of the lid is referred to, in which the top 27 of the bead 24 is "up". In the FIGS. 7 to 9 only one part of the lid and the tools are shown. The tools are, like the lid itself, rotationally symmetric to a central vertical axis.
  • the lid 28 for tensioning the tear-open film 25 is clamped in a clamping tool with an upper clamping jaw 30 and a lower clamping jaw 31 on its sealing surface 26.
  • the clamping jaws 30 and 31 have planar clamping surfaces 32 and 33, so that a clamping of the sealing surface without deformation thereof takes place.
  • FIG. 1 In FIG. 1
  • FIG. 7 a first embodiment is shown, in which the clamping of a first straight portion 26 'of the sealing surface takes place, which is adjacent to the flange edge 24', and wherein a second sealing edge portion 26 ", which also extends straight and directly adjacent to the first portion 26 ',
  • This second section 26 " is then followed by the other end 22 of the sealing surface, which is preferably designed as a deformed and preferably rolled-up edge region which delimits the opening 29 of the lid.
  • the edge region is designed as a so-called "retort curl" in the illustrated form.
  • the first horizontally extending straight portion 26 " is then bent after clamping by another tool 35, which is thereby moved in the direction of the arrow upwards, upwards.
  • the end position of the bending process in which a bend is made up to the desired angle ⁇ .
  • the bend by the tool 35 is made to engage only at the curled edge portion 22 and not directly at the seal surface portion 26 "after this permanent deformation of the seal surface 26 in the transition region between the portions 26 'and 26 "The pressing tool 35 can be moved down again.
  • the lid is removed from the processing station and further promoted and a next lid is conveyed into the processing station 7 to be processed there in the manner explained.
  • the angle ⁇ can be used to tension the film 25 only are a few degrees and is for example in the range of 3 degrees to 9 degrees. In the figures, a larger angle is shown for better illustration.
  • FIG. 8 shows a preferred embodiment in which again like reference numerals designate like elements.
  • the clamped portion 26 'of the sealing surface 26 includes substantially the entire area from the bead edge 24' to adjacent the other end of the sealing surface, this end 22 again being formed as a rolled edge. Essentially, therefore, only the curled edge is bent upwardly and forms the portion 26 "while the rest of the sealing surface 26 is clamped and forms the portion 26 ', leaving substantially the entire sealing surface horizontal and only the curled edge This also results in the desired tensioning of the tear-open film 25.
  • FIG. 9 shows a lid 28, which after the execution of the method of FIG. 7 has been produced.
  • the angle ⁇ is for example 3 degrees to 30 degrees, but preferably only 3 degrees to 9 degrees.
  • the width d of the annular portion 26 ' is for example about 2.5mm.
  • FIG. 10 and FIG. 11 show further preferred embodiments of the edge of the removal opening, as they can also be used in the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing Of Containers (AREA)
  • Closures For Containers (AREA)
EP10006268.6A 2009-07-09 2010-06-17 Procédé et dispositif destinés à la fabrication de couvercles à ouverture facile et tel couvercle à ouverture facile Active EP2272602B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01068/09A CH701451A2 (de) 2009-07-09 2009-07-09 Verfahren und Vorrichtung zur Herstellung von Aufreissdeckeln.

Publications (3)

Publication Number Publication Date
EP2272602A2 true EP2272602A2 (fr) 2011-01-12
EP2272602A3 EP2272602A3 (fr) 2011-08-03
EP2272602B1 EP2272602B1 (fr) 2014-04-23

Family

ID=42937434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10006268.6A Active EP2272602B1 (fr) 2009-07-09 2010-06-17 Procédé et dispositif destinés à la fabrication de couvercles à ouverture facile et tel couvercle à ouverture facile

Country Status (7)

Country Link
US (1) US8287220B2 (fr)
EP (1) EP2272602B1 (fr)
CN (1) CN101947608B (fr)
BR (1) BRPI1002632B1 (fr)
CH (1) CH701451A2 (fr)
DK (1) DK2272602T3 (fr)
ES (1) ES2465011T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH705595A1 (de) * 2011-10-05 2013-04-15 Soudronic Ag Verfahren und Vorrichtung zur Herstellung von Aufreissdeckeln.
US20220396393A1 (en) * 2019-11-08 2022-12-15 Ball Corporation Resealable can end with stay on tab

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006017258B4 (de) * 2006-04-12 2011-07-21 MULTIVAC Sepp Haggenmüller GmbH & Co. KG, 87787 Verfahren zum Herstellen einer Verpackung und Verpackungsmaschine
US20130161324A1 (en) * 2009-05-05 2013-06-27 James R. Gilliam, Jr. Non-detachable beverage closure with a peel open cover system
CH702855A1 (de) * 2010-03-19 2011-09-30 Soudronic Ag Verfahren zur Herstellung von Siegelscheiben.
US9073681B2 (en) * 2010-04-01 2015-07-07 Silgan Plastic Food Containers Corporation Heat sealing thru food contaminants
HUE029731T2 (en) * 2010-11-29 2017-03-28 Crown Packaging Technology Inc Clasps
EP2734453B1 (fr) * 2011-07-21 2017-11-01 Crown Packaging Technology, Inc. Boîtes métalliques dotées de couvercles pelables
US9611082B2 (en) 2013-05-13 2017-04-04 Owens-Brockway Glass Container Inc. Seal ring for foil-sealing a container
US8991634B2 (en) 2013-05-13 2015-03-31 Owens-Brockway Glass Container Inc. Seal ring for sealing a container
CH709571A1 (de) * 2014-04-29 2015-10-30 Soudronic Ag Verfahren und Vorrichtung zur Herstellung von Aufreissdeckeln sowie ein Aufreissdeckel.
EP3279105A1 (fr) * 2016-08-02 2018-02-07 Amcor Flexibles Singen GmbH Bague de couvercle
CN107253560A (zh) * 2017-04-28 2017-10-17 浙江青莲食品股份有限公司 食品罐盖体及食品罐
FR3072660B1 (fr) * 2017-10-20 2019-11-22 Ardagh Mp Group Netherlands B.V. Couvercle pour boite de conserve metallique, comprenant un anneau metallique et membrane pelable thermoscellee
JP7163086B2 (ja) * 2018-07-12 2022-10-31 大和製罐株式会社 缶蓋
WO2020162524A1 (fr) * 2019-02-07 2020-08-13 日本製鉄株式会社 Couvercle de boîte pour récipients en composite métal-résine, qui est formé de feuille d'acier stratifiée de résine, fond de boîte pour récipients en composite métal-résine, qui est formé de feuille d'acier stratifiée de résine, et récipient en composite métal-résine
US11554894B2 (en) * 2020-12-04 2023-01-17 Sonoco Development, Inc. Peelable resealable membrane for containers
CN115889575B (zh) * 2023-02-21 2023-05-26 浙江金石包装有限公司 一种异形易撕盖用铝箔的制备系统

Citations (4)

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Publication number Priority date Publication date Assignee Title
WO2005005277A1 (fr) 2003-07-01 2005-01-20 Crown Packaging Technology Inc Fermeture
WO2005019047A2 (fr) 2003-08-19 2005-03-03 Impress Metal Packaging S.A. Bague de couvercle comprenant une partie jointive plate inclinee
WO2006017953A1 (fr) 2004-08-18 2006-02-23 Soudronic Ag Procede et dispositif pour le transport d'objets a usiner
WO2007045385A1 (fr) 2005-10-20 2007-04-26 Alcan Technology & Management Ltd. Procede de fabrication d'un couvercle de boite presentant une bague de couvercle et une membrane de fermeture

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Publication number Priority date Publication date Assignee Title
FR2687633A1 (fr) * 1992-02-24 1993-08-27 Lorraine Laminage Procede de fermeture d'un recipient pour produits alimentaires, notamment du type barquette, dispositif pour sa mise en óoeuvre et recipient obtenu par ce procede.
US7004345B2 (en) * 2001-08-16 2006-02-28 Rexam Beverage Can Company Can end
AU2005206169A1 (en) * 2004-01-16 2005-08-04 William M. Heyn Angled sealing surface for container end panel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005005277A1 (fr) 2003-07-01 2005-01-20 Crown Packaging Technology Inc Fermeture
WO2005019047A2 (fr) 2003-08-19 2005-03-03 Impress Metal Packaging S.A. Bague de couvercle comprenant une partie jointive plate inclinee
WO2006017953A1 (fr) 2004-08-18 2006-02-23 Soudronic Ag Procede et dispositif pour le transport d'objets a usiner
WO2007045385A1 (fr) 2005-10-20 2007-04-26 Alcan Technology & Management Ltd. Procede de fabrication d'un couvercle de boite presentant une bague de couvercle et une membrane de fermeture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH705595A1 (de) * 2011-10-05 2013-04-15 Soudronic Ag Verfahren und Vorrichtung zur Herstellung von Aufreissdeckeln.
US20220396393A1 (en) * 2019-11-08 2022-12-15 Ball Corporation Resealable can end with stay on tab

Also Published As

Publication number Publication date
BRPI1002632B1 (pt) 2019-10-15
EP2272602B1 (fr) 2014-04-23
BRPI1002632A2 (pt) 2012-03-27
CN101947608A (zh) 2011-01-19
EP2272602A3 (fr) 2011-08-03
US20110168713A1 (en) 2011-07-14
CN101947608B (zh) 2015-01-07
CH701451A2 (de) 2011-01-14
ES2465011T3 (es) 2014-06-04
DK2272602T3 (da) 2014-07-28
US8287220B2 (en) 2012-10-16

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