EP0664171B1 - Retirage des bôites dans machines de fermeture - Google Patents

Retirage des bôites dans machines de fermeture Download PDF

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Publication number
EP0664171B1
EP0664171B1 EP94105287A EP94105287A EP0664171B1 EP 0664171 B1 EP0664171 B1 EP 0664171B1 EP 94105287 A EP94105287 A EP 94105287A EP 94105287 A EP94105287 A EP 94105287A EP 0664171 B1 EP0664171 B1 EP 0664171B1
Authority
EP
European Patent Office
Prior art keywords
seaming
roller
tool according
section
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.)
Expired - Lifetime
Application number
EP94105287A
Other languages
German (de)
English (en)
Other versions
EP0664171A1 (fr
Inventor
Hans-Dietrich Politt
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.)
Maiko Engineering GmbH
Original Assignee
Maiko Engineering GmbH
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 Maiko Engineering GmbH filed Critical Maiko Engineering GmbH
Priority to PCT/DE1995/000059 priority Critical patent/WO1995019858A1/fr
Priority to CZ962101A priority patent/CZ210196A3/cs
Priority to PL95315541A priority patent/PL175763B1/pl
Priority to US08/676,307 priority patent/US5865587A/en
Publication of EP0664171A1 publication Critical patent/EP0664171A1/fr
Application granted granted Critical
Publication of EP0664171B1 publication Critical patent/EP0664171B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/30—Folding the circumferential seam
    • B21D51/32—Folding the circumferential seam by rolling

Definitions

  • the invention relates to a method according to claim 1 and Tool for capping machines with the characteristics of Preamble of claim 3.
  • Such a tool is known in practice and consists of a central closing head, the one in contact with the core wall of the lid in this engages and with his "locking head lip" when lifting of the supporting part carrying the standing can into the can opening inserts and counter to those acting on the support member Spring force the flanged edge of the lid against the flanged edge of the Presses can and in a predetermined position opposite the sealing rollers holds so that they radial without hindrance can be adjusted inwards until their groove on the lying on top of each other and in the can deform as desired.
  • Such sealing rolls with Figures 4, 7 or 8 show a profile groove GB-A 2,225,265 (CMB Packaging); in the upper inlet area of the sealing roller shown there, the inlet angle is 1 ° to 2 °.
  • the upper inlet area exercises at Start with the first role (“first" operation roll) axial and radial force P according to page 5, lines 3 to 17 out.
  • the actual sealing roller is according to FIG. 2c there designed.
  • the shape of the capping lip is essentially due to this Undercut and through a central recess on the Bottom of the capping head is designed to accommodate a Tear device for tear-open covers is determined. Thereby receives the transition area between the lip and the central part of the Capping head a relatively small cross-section with which Danger in this transition area due to the strong Alternating stresses Cracks or even tears occur.
  • One could strengthen it of the transition area is the central area of the Then would enlarge the closing head in the radial direction but lose the stripper function of the sealing rollers.
  • a tool with the characteristics of the The preamble of claim 3 is to be developed in such a way that the sealing roller reliably a wiper function unsealed can from the sealing head.
  • the edge of the can flange ensures the contouring of the sealing roller in the Transitional area for the fact that the Capping rolls, these rolls reliably on the flanged edge can run up without this over the closing head deform (claim 1.3), instead is on the flange exerted a downward deformation component.
  • the rolls can also be used in the further course of the flanging Remove the unsealed can reliably so that it closes no significant disruption to operations can occur.
  • Claim 10 makes it possible to face the role "second" transition area between the locking head lip and to sufficiently reinforce the central area of the head, so that this strong alternating stresses even with large Lip length can withstand safely.
  • a desired scraper function of the sealing rollers is not impaired as by the appropriate, targeted contouring of the transition area of the roles of the large diameters required for this in the upper area of the rollers can be maintained.
  • the role can continue with her Employment sufficiently far into the undercut of the Intervene in the closing head.
  • Seam-lid closing machines are generally known, so that there is no need to describe them here; one is shown in FIG. 1 , with typical closing head shapes with lips 9 or 9a of different lengths and different recesses 11 or 11a.
  • the right tool for such a machine has one that can be raised and lowered in the direction of the tool axis Lift table 13, of which the upright can receiving Support part 13a resilient by springs 13c or the like, is resiliently supported.
  • the movement of the lifting table in The direction of the tool axis 12 is indicated by a double arrow 14 indicated.
  • a capping head 8 is coaxial with the lifting table arranged, which can be fixed in the axial direction.
  • the Capping head has a recess 11 on its underside on, which is arranged and dimensioned so that in it A suitable tear-open mechanism without contact a tear-open cover 5 can be added.
  • the capping head has one on its top Undercut or recess 21, 22 on. Through this and that lower recess 11 is a radially outwardly projecting and towards below protruding capping lip 9, which with its outer surface in contact with a core wall 6 of the cover 5 occurs when the can 1 with the loosely placed lid 5 through the lifting table 13 on which the can bottom 3 with its seam 4 gets up, is raised to initiate the closing process.
  • FIG. 1 shows two typical closing head shapes with lips 9 and 9a of different lengths and different recesses 11 and 11a, respectively.
  • the different lips are assigned to lids with different core wall depths.
  • the flange 7 of the lid covers the flange 2 of the can.
  • Closing rollers 15 are used to form the closing seam, one of which is shown in detail in FIG.
  • the rotating rollers become radial during the closing process to axis 12 from the extended position 19a in the position 19 shown with a simple outline moves (employed). This on and off movement is z. B. by Corresponding control cams, similar to the lifting movement of the lifting table.
  • the rollers 15 each have a radially inward open Profile groove 16, which causes the actual deformation.
  • the upper boundary edge 17 of the profile groove 16 follows one externally rounded transition area 17b into a cylindrical surface 18a an upper roller section 18, whose diameter is much larger than the diameter of one Roller section 23 below the profile groove 16.
  • the Difference in diameter can e.g. 6mm and ensures that in the radially inner position 19 of the role of the upper Section 18 engages in the undercut 21,22 and the Capping head lip 9,9a overlaps in the radial direction.
  • This dimensioning is necessary so that the sealing rollers 15 if the lid is missing and the position on the flanged edge is off 2 attack the can and remove it from the sealing head can.
  • the off and on movement of the rollers 15 is due to the Double arrow 20 indicated.
  • FIG. 1 shows that the transition cross section between the lip 9, 9a and a central section 10 of the closing head is relatively narrow.
  • Practice shows that cracks 25 can occur in the transition area or the lip tears off completely when the heavy alternating loads occur.
  • Figure 1 shows that in the absence of a cover, the springs 13c raise the can 1 with its flanged edge 2 by the dimension 26 to a position in which the flanged edge is designated 2a, with the result that when the rollers 15 are turned on, the flanged edge of the Can is pushed inward over the shoulder 22 of the sealing head 8 and deformed so that the can 1 is no longer released from the sealing head.
  • the original course 32 of the outline of the roll is indicated, while at 30 and 31 two of many possible new contour lines in the (transition) area in question the rollers 15 are indicated.
  • the cross-sectional increase 35 the contour line 30 or 31 or similar instead of the long (axially pointing) shoulder 17 of Figure 1 is provided, in such a way that this line of about the remaining upper boundary flank 17 of the profile groove 16 extends radially inwards and axially upwards, as shown in the transition region 17a.
  • the middle angle 34 should be below 60 ° and preferably around 45 ° or below lie.
  • the contour line 30, 31 can be a conical surface or a Determine irregularly profiled area.
  • FIG. 3 and FIG. 3.1 show further possible configurations of the contour lines in the transition region 17a of the roller 15 at 40a to 40d.
  • the measures for changing the cross-section and changing the contour of the rollers can be coordinated with one another in such a way that both the desired reinforcement of the sealing head lip 9,9a and the desired contour line 30,31 for defining a run-up slope for the flanged edge 2a are obtained .
  • the sealing roller (15) for the folding lid sealing machine has a run-up area (30,31; 40a to 40d) at the upper end of the Profile groove (16), which is at least partially noticeable opposite the horizontal (perpendicular to 12).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Of Jars (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Package Closures (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Mechanical Sealing (AREA)
  • Closing Of Containers (AREA)

Claims (11)

  1. Procédé de fermeture de boítes posées debout par un couvercle à sertir (5) avec réduction des temps d'immobilisation de machines de fermeture par couvercles à sertir, suivant lequel un bord de sertissage (2, 2a) débordant radialement vers l'extérieur et faisant partie d'un corps de boíte (1) soutenu élastiquement (13, 13c) reçoit d'un galet de fermeture (15) déplacé radialement une composante de déformation qui est orientée vers le bas lorsque le bord de sertissage (2a) est situé plus haut en direction axiale (12) qu'il ne le serait si le couvercle à sertir correspondant (5) était inséré dans le corps (1) de la boíte.
  2. Procédé selon la revendication 1, suivant lequel le bord de sertissage (2, 2a) reçoit aussi une composante de déformation qui est orientée vers le bas lorsqu'aucun couvercle à sertir (5) n'a été amené pour le processus de fermeture et que l'extrémité extérieure du bord de sertissage (2a) est située au-dessus d'une gorge profilée (16) du galet de fermeture (15).
  3. Outil de fermeture de corps de boítes (1) posées debout par des couvercles à sertir (5) selon la revendication 1,
    (a) comprenant une tête de fermeture ou mandrin (8 ; 9, 10) et une pièce de soutien (13) souple, déplaçable vers le haut et vers le bas par rapport à celui-ci, faisant ressort (13c) dans la direction du mouvement, pour un corps de boite (1) posé debout, ainsi qu'au moins un galet de fermeture (15) qui est déplaçable radialement par rapport à l'axe du mandrin et qui comporte une gorge profilée (16) qui est ouverte vers le mandrin (8) et dont le flanc supérieur de délimitation (17) se prolonge par l'intermédiaire d'une première zone de transition en une partie supérieure de galet (18) dont le diamètre est notablement supérieur à celui du fond de la gorge profilée (16),
    (aa) la partie supérieure du galet (18) étant conformée pour pénétrer, lors d'un déplacement radial du galet (15), dans une contre-dépouille annulaire (21, 22) que comporte le côté supérieur de la tête de fermeture (8);
    (bb) la tête de fermeture (8) comportant sur le côté inférieur un évidement central (11, 11a) qui est destiné à loger un dispositif d'entraínement du couvercle (5) et qui délimite, conjointement avec la contre-dépouille (21, 22) de la tête de fermeture (8) une lèvre circonférentielle (9, 9a) de la tête de fermeture qui attaque l'âme (6) de la paroi du couvercle (5),
    caractérisé en ce que
    (b) pour former une surface annulaire d'engagement, la première zone de transition (17a) du galet de fermeture (15) présente en coupe transversale une ligne de contour (30, 31) qui est orientée, à partir d'un point situé à proximité du flanc supérieur de délimitation (17) de la gorge profilée (16), en direction radiale vers l'axe (12) de la tête de fermeture et avec une pente ascendante axialement vers le haut,
    la ligne de contour (30 ; 31 ; 40a, 40b, 40c, 40d) s'étendant en direction axiale sur une distance qui est au moins égale à la course élastique (26) de la pièce de soutien (13).
  4. Outil selon la revendication 3, caractérisé en ce que la ligne de contour (30, 31) du galet de fermeture (15) présente - en moyenne sur son étendue - un angle moyen d'inclinaison (34) d'environ 60°, de préférence de 45° par rapport au plan orienté perpendiculairement à l'axe (12).
  5. Outil selon la revendication 2, caractérisé en ce que la ligne de contour (30, 31) observée en coupe transversale délimite une surface conique ou une surface à profil irrégulier servant de surface d'engagement au galet de fermeture (15).
  6. Outil selon l'une des revendications 3 à 5, caractérisé par son utilisation dans des machines de fermeture dans lesquelles les boítes peuvent être entraínées en rotation pendant le processus de fermeture ou sont insérées en étant axialement immobiles sans mouvement de rotation.
  7. Outil selon l'une des revendications 3 à 5, caractérisé par son utilisation dans des machines de fermeture sans dévêtisseur au-dessus de la lèvre (9, 9a) de la tête de fermeture.
  8. Outil selon la revendication 7, caractérisé en ce que la partie supérieure du galet (18) située au-dessus de la gorge profilée (16) présente un diamètre prévu pour que cette zone assume une fonction de dévêtissement.
  9. Utilisation de l'outil selon l'une des revendications précédentes 3 à 8, en remplacement d'un outil de fermeture existant, comprenant un dévêtisseur, dans des machines existantes de fermeture.
  10. Outil selon la revendication 3, caractérisé en ce que la contre-dépouille (21, 22) est emplie (35) radialement à l'intérieur et axialement au bas de manière à former un renfort dans une deuxième zone de transition, en particulier de manière à correspondre à la ligne de contour (30, 31) de la surface d'accès de la première zone de transition (17a) du galet de fermeture (15).
  11. Outil selon la revendication 10, dans lequel l'emplissage (35) de la deuxième zone de transition a une surface conique ou une surface de profil irrégulier qui en forme la superficie.
EP94105287A 1994-01-19 1994-04-05 Retirage des bôites dans machines de fermeture Expired - Lifetime EP0664171B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/DE1995/000059 WO1995019858A1 (fr) 1994-01-19 1995-01-18 Outil pour sertisseurs
CZ962101A CZ210196A3 (en) 1994-01-19 1995-01-18 Tool for closing machines
PL95315541A PL175763B1 (pl) 1994-01-19 1995-01-18 Przyrząd do zamykarek puszek i sposób ograniczania ilości przestojów zamykarek
US08/676,307 US5865587A (en) 1994-01-19 1995-01-18 Tool for a seaming machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4401446 1994-01-19
DE4401446A DE4401446A1 (de) 1994-01-19 1994-01-19 Werkzeug für Verschließmaschinen

Publications (2)

Publication Number Publication Date
EP0664171A1 EP0664171A1 (fr) 1995-07-26
EP0664171B1 true EP0664171B1 (fr) 2000-07-12

Family

ID=6508235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94105287A Expired - Lifetime EP0664171B1 (fr) 1994-01-19 1994-04-05 Retirage des bôites dans machines de fermeture

Country Status (6)

Country Link
US (1) US6123493A (fr)
EP (1) EP0664171B1 (fr)
AT (1) ATE194523T1 (fr)
DE (2) DE4401446A1 (fr)
DK (1) DK0664171T3 (fr)
ES (1) ES2149831T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6830420B2 (en) 2001-12-28 2004-12-14 Scott K. Westphal Jig and method for manufacturing a container
WO2012143263A1 (fr) * 2011-04-18 2012-10-26 Crown Packaging Technology, Inc. Procédé et appareil permettant de sertir des récipients et double sertissage obtenu de la sorte

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441170A (en) * 1967-03-03 1969-04-29 Continental Can Co Coined bead for improved fill characteristics
US3871314A (en) * 1972-10-20 1975-03-18 Dorn Co V Method of making folded can ends and folded can end product
FR2319439A1 (fr) * 1975-07-31 1977-02-25 Gallay Sa Perfectionnement au procede de realisation du triple sertissage
FR2430276A1 (fr) * 1978-07-07 1980-02-01 Gallay Sa Perfectionnements aux emballages metalliques ou composites avec fonds assembles par sertissage et aux outillages permettant leur realisation
US4354784A (en) * 1979-08-27 1982-10-19 Boise Cascade Corporation Method and apparatus for forming a non-silver scored metal end
ZA807387B (en) * 1979-12-08 1981-11-25 Metal Box Co Ltd Containers
US4392295A (en) * 1980-10-27 1983-07-12 Nittetsu Steel Drum Co., Ltd. Method and apparatus for forming drum seam
US4540323A (en) * 1982-01-28 1985-09-10 Nittetsu Steel Drum Co., Ltd. Metal containers and their manufacturing method and apparatus
US4434641A (en) * 1982-03-11 1984-03-06 Ball Corporation Buckle resistance for metal container closures
GB2121332B (en) * 1982-05-27 1985-11-20 Plastic Drum Company Limited Sealing of drums
AU570007B2 (en) * 1982-08-04 1988-03-03 K D Binnie Engineering Pty Ltd Joining an end plate to a hollow body
US4578007A (en) * 1982-09-29 1986-03-25 Aluminum Company Of America Reforming necked-in portions of can bodies
US4626158A (en) * 1983-07-05 1986-12-02 Gallay S.A. Container seam and a process for forming a container seam
JPS63242430A (ja) * 1987-03-30 1988-10-07 Toyo Seikan Kaisha Ltd ネツクイン缶の製造方法
NL8802339A (nl) * 1988-09-21 1990-04-17 Leer Koninklijke Emballage Werkwijze voor het vervaardigen van een felsverbinding.
GB8825280D0 (en) * 1988-10-28 1988-11-30 Mb Group Plc Seaming rolls
PL175763B1 (pl) * 1994-01-19 1999-02-26 Schmalbach Lubeca Przyrząd do zamykarek puszek i sposób ograniczania ilości przestojów zamykarek

Also Published As

Publication number Publication date
EP0664171A1 (fr) 1995-07-26
ES2149831T3 (es) 2000-11-16
DE4401446A1 (de) 1995-07-20
ATE194523T1 (de) 2000-07-15
US6123493A (en) 2000-09-26
DE59409442D1 (de) 2000-08-17
DK0664171T3 (da) 2000-11-13

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