EP0203032B1 - Siegelkopf - Google Patents

Siegelkopf Download PDF

Info

Publication number
EP0203032B1
EP0203032B1 EP86810203A EP86810203A EP0203032B1 EP 0203032 B1 EP0203032 B1 EP 0203032B1 EP 86810203 A EP86810203 A EP 86810203A EP 86810203 A EP86810203 A EP 86810203A EP 0203032 B1 EP0203032 B1 EP 0203032B1
Authority
EP
European Patent Office
Prior art keywords
sealing head
metal disc
head according
sealing
lamellae
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
EP86810203A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0203032A1 (de
Inventor
Christian Looser
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.)
Amcor Flexibles Rorschach AG
Original Assignee
Alcan Rorschach 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 Alcan Rorschach AG filed Critical Alcan Rorschach AG
Priority to AT86810203T priority Critical patent/ATE36686T1/de
Publication of EP0203032A1 publication Critical patent/EP0203032A1/de
Application granted granted Critical
Publication of EP0203032B1 publication Critical patent/EP0203032B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B5/00—Applying protective or decorative covers to closures; Devices for securing bottle closures with wire
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/2878—Securing closures on containers by heat-sealing

Definitions

  • the invention relates to a sealing head according to the preamble of patent claim 1.
  • the flatness of the sealing edge can suffer greatly as a result of uneven cooling during their manufacture, so that problems relating to tightness can arise when the lid or closure is sealed if the sealing head does not take these unevenness sufficiently into account.
  • the thin foils used as lids mostly made of coated aluminum, cannot compensate for these unevenness alone.
  • Sealing heads for sealing sealing films made of metal and plastic on glass containers are known.
  • German Offenlegungsschrift 2 915118 describes a sealing head, the sealing surface of which consists of a metal disk which is slotted along the periphery through recesses running towards the center.
  • the slotted area of the disc is conically bent downwards, so that the peripheral part of the disc bent downward rolls on the edge of the container when the sealing head is lowered and the film inserted between the disc and the edge presses onto the edge.
  • a sealing head with a pressure pad which consists of wire sections which are pressed in a tangled position to form a body having a fixed shape.
  • the side of the body facing the seal edge is adapted to its surface.
  • the dimensionally stable body pressed out of wire sections probably has a high thermal conductivity, but its surface, due to the recurring high surface pressure in the contact area with the edge of the seal, is unable to carry out a large number of seals before the contact area has hardened to such an extent that one perfect system is no longer guaranteed.
  • the object of the invention is now to create a sealing head, the lamellae of which follow the unevenness of the container rim and essentially apply a gap to the entire sealing surface.
  • this object is achieved by a sealing head according to the characterizing features of claim 1.
  • the recess above the lamellae, filled with metal balls, chips or granulate, enables the pressure surface to be precisely matched to the surface of the edge and excellent heat transfer from the heating elements to the lamellae.
  • the metal balls, chips or metal granules lying loosely in the recess cannot hinder the free movement of the slats.
  • the heat stored in the recess prevents the temperature of the sealing surface from dropping rapidly when it comes into contact with the glass rim.
  • the heat transfer takes place only at the edge, the middle of the lid remains cold. Thanks to the circular support in the center of the sealing surface, fine and thin lamellas can be used, which adapt perfectly to the unevenness of the surface.
  • the sealing head 1 shown in Fig. 1 is attached to the axially movable piston 3 of a conventional sealing machine (not shown).
  • a glass container 5 with a sealing edge 6 located just below the sealing head 1 stands on a base 7.
  • a disk-shaped metal plate 9, which is described in more detail below, is held clamped between a clamping ring 15 which can be pressed onto the sealing head body 13 with screws 11 and the sealing head body 13. It is also possible to attach the metal disc 9 directly to the sealing head body 13 with screws 11.
  • a metal closure or cover 8 is inserted between the metal disc 9 and the sealing edge 6.
  • the metal disc 9 rests on a shoulder 17.
  • a bore 19 connected to the back of the sealing head body 13 can be made.
  • a recess 22 filled with metal balls, shot or granules 21 is arranged above the metal disk 9.
  • the sealing head body 13 and the metal disk 9 which is thermally conductively connected to it can be heated with a heater 23 made of wires laid in a ring or spiral.
  • the heater 23 can be arranged in the sealing head body 13 or in the recess 22 (shown in broken lines).
  • the metal disk 9 covering the recess 22 has a plurality of essentially radially extending slots 27 which divide the metal disk 9 into lamellae 25.
  • the slots 27 are either split or branched in a V-shape (FIG. 2), or they end in a round or polygonal recess 29 (FIG. 3).
  • the distance a of the web 31 between the ends of the slots 27 or between the recesses 29 preferably corresponds approximately to the width c of the slats 25 at their end facing the center if there is a central opening 33 there.
  • the lamellae 25, the ends of which directed against the center only rest on the shoulder 17, can bend during the sealing by the force acting from the sealing edge 6 and adapt to its surface shape.
  • the lamella 25 can additionally pivot about its longitudinal axis and lie completely against the surface of the sealing edge 6.
  • the width of the slots 27 is so small that there is also sufficient contact pressure and sufficient heat transfer to the cover 8 to be sealed.
  • wavy slots 27 can also be provided.
  • the metal disk can also be designed without a central opening 33, in which case support in the center can then also be dispensed with.
  • the thickness of the metal disc 9, which is preferably made of an elastic material, e.g. Spring steel, exists and has a hardened surface, depends on the diameter of the sealing edge 6 and is only a few tenths of a millimeter for small diameters; about 1 mm for larger containers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Seal Device For Vehicle (AREA)
  • Closures For Containers (AREA)
  • Glass Compositions (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Paper (AREA)
  • Catching Or Destruction (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Package Closures (AREA)
  • Closing Of Containers (AREA)
EP86810203A 1985-05-17 1986-05-06 Siegelkopf Expired EP0203032B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86810203T ATE36686T1 (de) 1985-05-17 1986-05-06 Siegelkopf.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2108/85A CH668048A5 (de) 1985-05-17 1985-05-17 Siegelkopf.
CH2108/85 1985-05-17

Publications (2)

Publication Number Publication Date
EP0203032A1 EP0203032A1 (de) 1986-11-26
EP0203032B1 true EP0203032B1 (de) 1988-08-24

Family

ID=4226057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810203A Expired EP0203032B1 (de) 1985-05-17 1986-05-06 Siegelkopf

Country Status (7)

Country Link
EP (1) EP0203032B1 (da)
JP (1) JPS61273309A (da)
AT (1) ATE36686T1 (da)
AU (1) AU582650B2 (da)
CH (1) CH668048A5 (da)
DE (1) DE3660582D1 (da)
DK (1) DK161129C (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH680422A5 (da) * 1989-11-29 1992-08-31 Alusuisse Lonza Services Ag
FR2826336B1 (fr) * 2001-06-20 2004-01-16 Automatisme Assistance Dispositif d'operculage sous film de contenants rigides pour emballage sous vide ou sous atmosphere modifiee de produits alimentaires
DE102011078673B4 (de) * 2011-07-05 2015-10-01 Von Ardenne Gmbh Verfahren und Vorrichtung zur Vakuumbehandlung von Substraten
WO2026061615A1 (de) 2024-09-18 2026-03-26 watttron GmbH Flexibles werkzeug sowie verfahren zum stoffschlüssigen verbinden zweier fügepartner

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH627986A5 (de) * 1978-04-18 1982-02-15 Nyffeler Corti Ag Verfahren und vorrichtung zum heisssiegeln einer mit einem thermoplastischen material beschichteten folie auf den rand eines behaelters aus nicht thermoplastischem material.
GB1589014A (en) * 1978-05-24 1981-05-07 Whitelow A High density plastics containers and methods of and apparatus for filling and sealing such containers
FR2513965A1 (fr) * 1981-10-06 1983-04-08 Tscheulin Aluminium Dispositif pour l'obturation de recipients en matiere non deformable a la chaleur

Also Published As

Publication number Publication date
DE3660582D1 (en) 1988-09-29
AU5735286A (en) 1987-11-19
ATE36686T1 (de) 1988-09-15
CH668048A5 (de) 1988-11-30
DK161129B (da) 1991-06-03
EP0203032A1 (de) 1986-11-26
DK161129C (da) 1991-12-30
DK227286A (da) 1986-11-18
AU582650B2 (en) 1989-04-06
DK227286D0 (da) 1986-05-16
JPS61273309A (ja) 1986-12-03

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