EP1198340B1 - Procede permettant de chauffer les volets de fermeture d'un contenant en carton - Google Patents

Procede permettant de chauffer les volets de fermeture d'un contenant en carton Download PDF

Info

Publication number
EP1198340B1
EP1198340B1 EP00958325A EP00958325A EP1198340B1 EP 1198340 B1 EP1198340 B1 EP 1198340B1 EP 00958325 A EP00958325 A EP 00958325A EP 00958325 A EP00958325 A EP 00958325A EP 1198340 B1 EP1198340 B1 EP 1198340B1
Authority
EP
European Patent Office
Prior art keywords
package
thermally activated
heating
thermal activation
mandrel
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
EP00958325A
Other languages
German (de)
English (en)
Other versions
EP1198340A1 (fr
Inventor
H. W. Mainz
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.)
SIG Combibloc Systems GmbH
Original Assignee
SIG Combibloc GmbH and Co KG
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 SIG Combibloc GmbH and Co KG filed Critical SIG Combibloc GmbH and Co KG
Priority to DK03004407T priority Critical patent/DK1352733T3/da
Priority to EP03004407A priority patent/EP1352733B1/fr
Publication of EP1198340A1 publication Critical patent/EP1198340A1/fr
Application granted granted Critical
Publication of EP1198340B1 publication Critical patent/EP1198340B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/20—Applying or generating heat or pressure or combinations thereof by fluid pressure acting directly on folds or on opposed surfaces, e.g. using hot-air jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/741—Moistening; Drying; Cooling; Heating; Sterilizing

Definitions

  • the invention relates to a method for heating the bottom of composite packages unfolded from packaging jackets, in particular beverage packages, wherein the heating (thermal activation) of the bottom area of the composite package unfolded onto a mandrel of the mandrel wheel to form the package bottom is effected by means of hot air guided through air outlet openings of a heating nozzle, wherein the thermal activation by uniformly guiding over the areas of the package jacket to be sealed during immersion in and out of the package jacket.
  • a device for closing of flat folded pieces of tubing upright containers by means of thermal activation in which a hot air outlet openings having Schudüse is brought into a heating position by heating by a cylinder, there the hot air to be sealed Diverts areas of the pack bottom and then pivoted back to the starting position (rest position).
  • the air outlet openings are designed as holes.
  • thermoplastic adhesive material Another closure device for containers with a closure of thermoplastic adhesive material is known from DE-AS 15 11 573, in which the heating nozzle also alternately take a rest and a working position to, evenly in time with the mandrel wheel, the area to be sealed thermally activate the bottom of the pack.
  • the air outlet openings are punctiform or slit-shaped. Again, the heating nozzle remains for a certain period of time inside the unfolded packing jacket.
  • EP-A-0 832 731 discloses a method for bottom formation of composite packs unfolded from packing shells by means of thermal activation, wherein the heating nozzle during heating is performed evenly over the areas to be sealed of the packing jacket.
  • a device with a clocked mandrel wheel and a bottom molding apparatus is provided, which has a substantially corresponding to the shape of the mandrel provided with a rectangular cross-section heating nozzle.
  • the invention is therefore based on the object, a method of the type mentioned above and described in more detail above and further develop that the quality of the seal can be checked visually.
  • This object is achieved in that outside of the thermally activated to form the package bottom area additionally at least two thermally activated reference marks are activated at a small mutual distance.
  • the thermal activation of two adjacent, but spaced reference marks in the non-sealed portion of the package bottom causes the quality of the seal can be optically monitored.
  • the monitoring can be done automatically by a plunging into the open package control optics.
  • the activation temperature is too low and the floor heating must be set higher. If the reference marks just come together, the activation temperature is sufficient and an optimal operating state is reached. If the reference marks completely merge, so the activation temperature is too high and the floor heating must be set lower.
  • the corresponding area can be observed through a polarizing filter on the aluminum-clad side of the packing jacket. The thermally activated areas are colored differently under the polarization filter.
  • the reference marks may be formed, for example, as circular reference points or else as strip-shaped reference bars.
  • the thermal activation preferably takes place when the mandrel wheel is stationary. According to a further embodiment of the invention, however, the heating nozzle can also be pivoted simultaneously with the mandrel to increase the clock speed during the activation process.
  • the heating nozzle is moved over the bottom portion of the unfolded packing jacket and the thermal activation occurs during immersion in and out of the packing jacket.
  • the bottom area inside and / or outside the packing jacket can be thermally activated. In this way, a particularly good thermal activation can be achieved, since the thermal activation takes place on the one hand shortly before the further movement of the mandrel wheel in the deformation station.
  • the heating nozzle 1 consists of three, each top and bottom open boxes, namely the upper box 2, the middle box 3 and the lower box 4.
  • the lower box 4 is down (packungsinnen perfume) with a lid 5 closed.
  • the heating nozzle 1 is shown in FIGS. 1 and 2 in its two side views, where the air outlet openings can be seen particularly well, which are partially designed as holes 6 and partially as slots 7.
  • Figs. 3 to 5 show plan views from below of the individual boxes 2, 3 and 4, wherein in particular the Formation of the nozzle structure in the formed as slots 7 air outlet openings can be seen. It is readily apparent that the design effort for the construction of such a heating nozzle can be made very simple when the slots 7 are arranged respectively at the edges of the individual boxes 2, 3 and 4 respectively.
  • the outer dimensions of the individual boxes 2, 3 and 4 corresponds approximately to the inner cross section of a folded-up packing jacket pushed onto a mandrel of a filling machine.
  • the size must be chosen so that between the heating nozzle 1 and (not shown) packing jacket remains a sufficient air gap to reliably exclude bonds or shifts of already thermally activated sealable material such as polyethylene.
  • the illustrated heating nozzle charged with hot air, now "dives" into the region of the packing jacket projecting from the mandrel.
  • the heating nozzle 1 passes over the areas of the package to be activated, so that an extremely uniform thermally activated zone is formed, in which an optimal temperature is adjustable for the subsequent sealing process.
  • the illustrated geometry of the air outlet openings, the holes 6 and 7 slots are selected only by way of example, by corresponding overlapping arrangement, even larger surface areas can heat evenly or even produce different temperature ranges, if they should be necessary for the sealing process.
  • FIGS. 6 to 8 the quality of the thermal activation can be monitored optically by means of reference marks provided outside the bottom area to be sealed, but in the bottom of the package. This can also be done fully automatically, with a connected control loop affecting the activation temperature.
  • circular reference points 8 which are generated at a small distance from one another by thermal activation during the activation process, serve as reference marks. It is clear that the distance of the reference marks must be determined empirically for each package format, since factors such as packaging material thickness, aluminum foil thickness, package size etc. play a role here.
  • the optical evaluation is done in practice by immersing an optic in the open-topped packing container, in the illustrations according to FIGS. 6 to 8 the bottom region of a packing jacket M is cut open and laid straight.
  • the two reference points 8 which are arranged at a small distance from one another in the bottom region of the packing shells, allow, as viewed through a polarizing filter, information about the quality of the seal. If the two reference points 8 are just touching, the activation temperature is set optimally, as can be seen in FIG. If two individual reference points 8 'can be recognized, as shown in FIG. 7, then this is sufficient Activation temperature is not off, it is rather a "underactivation".
  • Fig. 8 shows an unacceptable "over-activation" in which the two reference points 8 "merge into one another

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing Of Containers (AREA)
  • Package Closures (AREA)
  • Making Paper Articles (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Package Specialized In Special Use (AREA)

Claims (8)

  1. Procédé pour chauffer le fond d'emballages composites dépliés à partir d'enveloppes d'emballages (M), notamment d'emballages de boissons, selon lequel le chauffage (activation thermique) de la zone de fond de l'emballage composite déplié sur un mandrin d'une roue à mandrin pour la formation du fond de l'emballage, est effectué au moyen d'air chaud dirigé par des ouvertures de passage d'air d'une buse de chauffage (1), dans lequel l'activation thermique est effectuée par un guidage régulier au-dessus des zones à sceller de l'enveloppe d'emballage (M) pendant l'insertion dans l'enveloppe d'emballage (M) et l'extraction hors de celle-ci,
    caractérisé en ce que, à l'extérieur de la zone thermiquement activée pour la formation du fond de l'emballage, en supplément au moins deux marques de repère (8, 8', 8") à faible distance l'une de l'autre sont thermiquement activées.
  2. Procédé selon la revendication 1, caractérisé en ce que des points de référence circulaires servent de marques de repère (8, 8', 8 ").
  3. Procédé selon la revendication 1, caractérisé en ce que des barres de repère en forme de bandes servent de marques de repère.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la zone du fond est thermiquement activée à l'intérieur et à l'extérieur de l'enveloppe d'emballage (M).
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la zone du fond est thermiquement activée à l'intérieur de l'enveloppe d'emballage (M).
  6. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la zone du fond est thermiquement activée à l'extérieur de l'enveloppe d'emballage (M).
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que l'activation thermique est effectuée lorsque la roue à mandrin est immobile.
  8. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que l'activation thermique est effectuée pendant le pivotement de la roue à mandrin.
EP00958325A 1999-07-31 2000-07-28 Procede permettant de chauffer les volets de fermeture d'un contenant en carton Expired - Lifetime EP1198340B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK03004407T DK1352733T3 (da) 1999-07-31 2000-07-28 Indretning til opvarmning af lukkeklapper i en kartonbeholder
EP03004407A EP1352733B1 (fr) 1999-07-31 2000-07-28 Dispositif de chauffer les volets de fermeture d'un conteneur en carton

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19936150 1999-07-31
DE19936150 1999-07-31
PCT/EP2000/007364 WO2001008871A1 (fr) 1999-07-31 2000-07-28 Procede et dispositif permettant de chauffer les volets de fermeture d'un contenant en carton

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP03004407A Division EP1352733B1 (fr) 1999-07-31 2000-07-28 Dispositif de chauffer les volets de fermeture d'un conteneur en carton
EP03004407A Division-Into EP1352733B1 (fr) 1999-07-31 2000-07-28 Dispositif de chauffer les volets de fermeture d'un conteneur en carton

Publications (2)

Publication Number Publication Date
EP1198340A1 EP1198340A1 (fr) 2002-04-24
EP1198340B1 true EP1198340B1 (fr) 2004-03-31

Family

ID=7916790

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03004407A Expired - Lifetime EP1352733B1 (fr) 1999-07-31 2000-07-28 Dispositif de chauffer les volets de fermeture d'un conteneur en carton
EP00958325A Expired - Lifetime EP1198340B1 (fr) 1999-07-31 2000-07-28 Procede permettant de chauffer les volets de fermeture d'un contenant en carton

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP03004407A Expired - Lifetime EP1352733B1 (fr) 1999-07-31 2000-07-28 Dispositif de chauffer les volets de fermeture d'un conteneur en carton

Country Status (11)

Country Link
EP (2) EP1352733B1 (fr)
CN (1) CN1177683C (fr)
AT (2) ATE277746T1 (fr)
AU (1) AU6988800A (fr)
DE (2) DE50005919D1 (fr)
DK (2) DK1198340T3 (fr)
ES (2) ES2218211T3 (fr)
HK (1) HK1048282B (fr)
PT (2) PT1198340E (fr)
TW (1) TW508321B (fr)
WO (1) WO2001008871A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0411721D0 (en) * 2004-05-26 2004-06-30 Elopak Systems Method and apparatus
CN109789707B (zh) * 2016-10-20 2021-05-25 惠普发展公司，有限责任合伙企业 耗散加热元件的热量

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3222991B2 (ja) * 1993-07-13 2001-10-29 大日本印刷株式会社 紙容器シール用加熱方法及び装置
JP3763007B2 (ja) * 1996-09-27 2006-04-05 四国化工機株式会社 容器底部ヒートシール用加熱装置

Also Published As

Publication number Publication date
CN1177683C (zh) 2004-12-01
EP1198340A1 (fr) 2002-04-24
TW508321B (en) 2002-11-01
ES2229176T3 (es) 2005-04-16
ES2218211T3 (es) 2004-11-16
EP1352733B1 (fr) 2004-09-29
HK1048282B (zh) 2005-05-06
DK1352733T3 (da) 2004-11-15
PT1198340E (pt) 2004-08-31
PT1352733E (pt) 2005-01-31
DE50005919D1 (de) 2004-05-06
WO2001008871A1 (fr) 2001-02-08
WO2001008871B1 (fr) 2001-06-14
EP1352733A1 (fr) 2003-10-15
AU6988800A (en) 2001-02-19
ATE277746T1 (de) 2004-10-15
DE50008041D1 (de) 2004-11-04
HK1048282A1 (en) 2003-03-28
ATE263016T1 (de) 2004-04-15
CN1371318A (zh) 2002-09-25
DK1198340T3 (da) 2004-08-02

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