EP0058602A1 - Apparatus for the heat shrinking of thermoplastic sleeves on containers - Google Patents

Apparatus for the heat shrinking of thermoplastic sleeves on containers Download PDF

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Publication number
EP0058602A1
EP0058602A1 EP82400224A EP82400224A EP0058602A1 EP 0058602 A1 EP0058602 A1 EP 0058602A1 EP 82400224 A EP82400224 A EP 82400224A EP 82400224 A EP82400224 A EP 82400224A EP 0058602 A1 EP0058602 A1 EP 0058602A1
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EP
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Prior art keywords
chamber
air
tunnel
conveyor
containers
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EP82400224A
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German (de)
French (fr)
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EP0058602B1 (en
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Jacques Fresnel
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Individual
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Priority to AT82400224T priority Critical patent/ATE9567T1/en
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    • 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
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
    • B65B53/063—Tunnels

Definitions

  • the object of the invention is to further improve the shrinkage systems of sleeves in order to make them suitable for the treatment of all types of receptacles and to avoid the presence of folds in the areas with high discontinuity of certain packages. It also aims to develop a device that saves as much as possible the calories expended on shrinking and authorizes universal use for any type of packaging.
  • the invention proposes a new device which essentially comprises: a) a tunnel in which the container conveyor circulates and divided into three contiguous zones communicating with each other, one of which preheating zone or chamber, a proper reheating chamber and a finishing chamber; b) a fan supplied with air from the preheating chamber and fitted with a vessel on its discharge outlet expansion closed by a perforated plate to which are connected series of flexible hollow tubes receiving, for the most part an air blowing nozzle; said nozzles, orientable in all directions, being in operation in the shrinking chamber while at least one flexible tube is connected to a diffuser located at the level of the finishing chamber and the outlet air of which, under slight pressure, constitutes a barrier forcing the hot air from the retaining chamber int to flow to the preheating chamber.
  • the width adopted for the tunnel is generally that which corresponds substantially to the width of the conveyor.
  • the walls of the tunnel are thermally insulated, for example by glass wool or equivalent heat insulation introduced between two sheets of sheet metal.
  • Heating of the air intended for the shrinkage operation of the sleeves can be provided by any known means.
  • each nozzle is provided in the sleeve which supports it with electrical resistances with fins.
  • the electrical resistances can be mounted in the housing or expansion vessel which surmounts the fan.
  • a device essentially comprises: a tunnel oven 1 divided into three zones A, B, C and an assembly 2 intended for the aspiration and the blowing of hot air and fitted with an original air distribution system intended for the heat shrinkage of sleeves on receptacles.
  • the fan 7, driven by the motor 8, draws its air directly, through the line 9, into the preheating chamber A.
  • this fan is surmounted by a hollow box 10 or expansion vessel closed by a perforated plate 11 in the holes of which flexible tubes are mounted 12.
  • the number of perforations 13 of the plate 11 can of course be any, for example six, eight, ten or more.
  • Most of the hoses 12 support at their end a nozzle 14 with pinched edges which delivers a thin air gap corresponding to the width of the selected slot.
  • These series of nozzles 14 surround the sleeved container 4 (see FIG. 2) which circulates in the tunnel at the level of the chamber B where the sleeve is retracted by suitable and very flexible orientation of the air knives coming from the adjustable nozzles.
  • At least one flexible 12 ′ is connected to a fixed or mobile diffuser 15 placed in the finishing chamber C.
  • the pressurized air which emanates from this diffuser acts as a barrier to the exit of the air. hot derived from the re- chamber 'hugged B and requires the latter to be discharged in the direction of arrow 16 toward the preheating chamber A. in this way there is little or no heat loss in outside the tunnel and the warm air of room A, instead of escaping into the atmosphere is recovered directly by the fan 7.
  • the additional heating of this warm air can be obtained by any known means.
  • electrical resistances can be adapted in the mandrel 17 which supports the nozzle 14.
  • resistors can be installed in the housing 10 which surmounts the fan 7.
  • cover or cap 18 of the tunnel 1 is preferably removably mounted in order to be able to intervene, if necessary, during the shrinking operations and allow automatic opening in the event of the conveyor stopping thereby avoiding overheating of products inside the tunnel.
  • the temperature adjustment is effected simply by spacing of the nozzles' relative to the sleeve-mounted container; in addition, this temperature can be regulated by thermostat at the aforementioned electrical resistances.

Abstract

1. Apparatus for hot shrinking of thermoplastic sleeves around the surface of containers traveling on a conveyor comprising a tunnel (1) in which the conveyor (3) provided with the containers (4) passes and which tunnel is divided into three contiguous communicating zones, said zones consisting of a preheating zone or chamber (A), a shaping chamber (B) and a finishing chamber (C) ; the inferior part of the tunnel comprising a blower (7) drawing its delivery air from the preheating chamber (A) by a piping (9) ; the apparatus being characterized in that, on an expansion vessel (10) which is closed by a perforated plate (11) above the blower (7), are erected a series of flexible hollow tubes (12), at least most of said tubes having a nozzle (14) for blowing air there from ; said nozzles, which are orientable in all directions, being located in the shaping chamber (B) during the operation while at least one flexible tube (12') is connected to a diffuser (15), fixed or movable, located in the finishing chamber (C) and the pressurized output air from which constitutes a barrier forcing the hot air from the shaping chamber (B) to flow into the preheating chamber (A).

Description

La présente invention a trait au domaine des dispositifs de production et circulation d'air chaud, destinés notamment à provoquer le retrait ou rétreint de film de matière plastique thermorétractable autour d'un support tel qu'un récipient destiné à être habillé ou décoré. Elle concerne tout particulièrement un nouvel appareillage destiné à l'opération de rétreint de tronçons de gaine ou manchons en matière thermoplastique autour de réceptacles de formes et nature diverses.The present invention relates to the field of devices for producing and circulating hot air, intended in particular to cause shrinkage or shrinking of film of heat-shrinkable plastic around a support such as a container intended to be dressed or decorated. It relates more particularly to a new apparatus intended for the operation of shrinking sheath sections or sleeves of thermoplastic material around receptacles of various shapes and nature.

On sait que l'utilisation de gaines ou manchons en film plastique thermorétractable, type chlorure de polyvinyle ou autre, pour la décoration et/ou l'inviolabilité de récipients de formes diverses (bouteilles,bbmbes aérosols, boîtes alimentaires...etc) pose de nombreux problèmes dans l'étape de rétraction. En effet, lors du gainage partiel ou total d'emballages, il importe de créér des zones où la température de l'air est variable, par exemple s'accroit progressivement, de façon à provoquer sélectivement le rétrécissement du manchon sur les diverses portions, de conformation plus ou moins complexe, du récipient à gainer.We know that the use of sheaths or sleeves in heat-shrinkable plastic film, polyvinyl chloride type or other, for the decoration and / or the inviolability of containers of various shapes (bottles, aerosol cans, food boxes ... etc) poses many problems in the retraction stage. In fact, when partially or completely wrapping packaging, it is important to create zones where the air temperature is variable, for example gradually increases, so as to selectively cause the sleeve to shrink on the various portions, of more or less complex conformation, of the container to be sheathed.

Les fours de rétraction classiques de films d'emballage ne convenant pas pour cet usage, on a cherché à mettre au point divers dispositifs perfectionnés tels que notamment : des fours-tunnels à parois latérales mobiles nécessitant de nombreux organes et des réglages délicats (brevet américain N°3.808.702) ; un four à recyclage d'air et à déflecteurs réglables pour obtenir de l'air progressivement chaud en différentes zones du manchon, mais dont l'utilisation est limitée à des réceptacles de faible hauteur (brevet français N°75.24467, publication N°2320 517) ; des boîtiers-diffuseurs réglables en toutes directions, munis à leur base d'une fente longitudinale de distribution d'air chaud présentant des discontinuités de direction, par exemple grâce à des parties rentrantes articulées, un tel boîtier étant disposé de chaque côté d'un convoyeur où les récipients manchonnés circulent,prêts à être rétreints (brevet français principal N°75.30896 et ses additions N°75.36299, 76.08851, et 76.39546).Conventional packaging film shrinking ovens not being suitable for this use, attempts have been made to develop various improved devices such as in particular: tunnel kilns with movable side walls requiring numerous organs and delicate adjustments (American patent No. 3,808,702); an air recycling oven with adjustable deflectors to obtain progressively hot air in different areas of the sleeve, but the use of which is limited to receptacles of low height (French patent N ° 75.24467, publication N ° 2320 517 ); diffusers boxes adjustable in all directions, provided at their base with a longitudinal slot for hot air distribution having discontinuities in direction, for example by means of articulated re-entrant parts, such a box being arranged on each side of a conveyor where the sleeved containers circulate, ready to be shrunk (main French patent N ° 75.30896 and its additions N ° 75.36299, 76.08851, and 76.39546).

L'invention a pour but d'améliorer encore les systèmes de rétraction de manchons afin de lée rendre aptes au traitement de tous types de réceptacles et d'éviter la présence de plis dans les zones à forte discontinuité de certains emballages. Elle vise en outre la mise au point d'un appareil permettant d'économiser au maximum les calories dépensées pour la rétraction et autorisant une utilisation universelle pour n'importe quel type d'emballage.The object of the invention is to further improve the shrinkage systems of sleeves in order to make them suitable for the treatment of all types of receptacles and to avoid the presence of folds in the areas with high discontinuity of certain packages. It also aims to develop a device that saves as much as possible the calories expended on shrinking and authorizes universal use for any type of packaging.

Pour atteindre ces buts et d'autres qui apparaitront au cours de la présente description, l'invention propose un nouveau dispositif qui comporte essentiellement : a) un tunnel dans lequel circule le convoyeur à récipients et divisé en trois zones contigües communiquant entre elles dont une zone ou chambre de préchauffage, une chambre de ré-". treint proprement dit et une chambre de finition ; b) un ventilateur alimenté par l'air de la chambre de préchauffage et muni, sur sa sortie de refoulement, d'un vase d'expansion fermé par une plaque perforée sur laquelle se raccordent des séries de tubes creux flexibles recevant, pour la plupart une buse de soufflage d'air ; lesdites buses, orientables en toutes directions, se trouvant en cours d'opération dans la chambre de rétreint alors qu'au moins un tube flexible est relié à un diffuseur situé au niveau de la chambre de finition et dont l'air de sortie, sous légère pression, constitue une barrière obligeant l'air chaud de la chambre de rétreint à s'écouler vers la chambre de préchauffage.To achieve these aims and others which will appear during the present description, the invention proposes a new device which essentially comprises: a) a tunnel in which the container conveyor circulates and divided into three contiguous zones communicating with each other, one of which preheating zone or chamber, a proper reheating chamber and a finishing chamber; b) a fan supplied with air from the preheating chamber and fitted with a vessel on its discharge outlet expansion closed by a perforated plate to which are connected series of flexible hollow tubes receiving, for the most part an air blowing nozzle; said nozzles, orientable in all directions, being in operation in the shrinking chamber while at least one flexible tube is connected to a diffuser located at the level of the finishing chamber and the outlet air of which, under slight pressure, constitutes a barrier forcing the hot air from the retaining chamber int to flow to the preheating chamber.

En pratique, la largeur adoptée pour le tunnel est généralement celle qui correspond sensiblement à la largeur du convoyeur. Les parois du tunnel sont isolées thermiquement, par exemple par de la laine de verre ou calorifuge équivalent introduit entre deux plaques de tôle.In practice, the width adopted for the tunnel is generally that which corresponds substantially to the width of the conveyor. The walls of the tunnel are thermally insulated, for example by glass wool or equivalent heat insulation introduced between two sheets of sheet metal.

La communication entre les zones ou chambres précitées à l'intérieur du tunnel s'effectue essentiellement par le passage laissé libre pour la circulation des récipients sur le convoyeur. Afin que chaque zone remplisse correctement sa fonction sans égalisation trop rapide des températures, il s'avère avantageux de munir les parois supérieure et latérales du tunnel de chicanes jouant le rôle de séparateurs de zones dont l'ouverture correspond audit passage libre des récipients.The communication between the aforementioned zones or chambers inside the tunnel takes place essentially by the passage left free for the movement of the containers on the conveyor. So that each zone fulfills its function correctly without too rapid temperature equalization, it proves advantageous to provide the upper and lateral walls of the tunnel with baffles playing the role of zone separators whose opening corresponds to said free passage of the containers.

Le chauffage de l'air destiné à l'opération de rétraction des manchons peut être assuré par tout moyen connu. Par exemple, selon un mode de réalisation, chaque buse est munie dans le manchon qui la supporte de résistances électriques à ailettes.Conformément à une autre réalisation, les résistances électriques peuvent être montées dans le boîtier ou vase d'expansion qui surmonte le ventilateur.Heating of the air intended for the shrinkage operation of the sleeves can be provided by any known means. For example, according to one embodiment, each nozzle is provided in the sleeve which supports it with electrical resistances with fins. In accordance with another embodiment, the electrical resistances can be mounted in the housing or expansion vessel which surmounts the fan.

L'invention sera mieux comprise et d'autres détails apparaitront par la description qui suit, relative à un mode d'exécution non limitatif illustré par les dessins annexés qui représentent schématiquement :

  • . Figure 1 une vue en coupe, de profil, d'un appareil de rétraction de film thermoplastique selon l'invention ;
  • . Figure 2 : une vue en plan, à 90 degrés de la figure 1 ;
  • . Figure 3 : le détail d'une plaque perforée adaptable au vase d'expansion du ventilateur ;
  • . Figure 4 : un détail de type de réalisation de buse.
The invention will be better understood and other details will appear from the description which follows, relating to a nonlimiting embodiment illustrated by the appended drawings which schematically represent:
  • . Figure 1 a sectional view, in profile, of a thermoplastic film shrinking apparatus according to the invention;
  • . Figure 2: a plan view, 90 degrees from Figure 1;
  • . Figure 3: detail of a perforated plate adaptable to the fan expansion tank;
  • . Figure 4: a detail of the embodiment of the nozzle.

Tel que représenté sous forme simplifiée sur la figure 1, un dispositif selon l'invention comprend essentiellement : un four-tunnel 1 divisé en trois zones A,B,C et un ensemble 2 destiné à l'aspiration et au soufflage d'air chaud et muni d'un système original de distribution de l'air destiné à la thermorétraction de manchons sur réceptacles.As shown in simplified form in FIG. 1, a device according to the invention essentially comprises: a tunnel oven 1 divided into three zones A, B, C and an assembly 2 intended for the aspiration and the blowing of hot air and fitted with an original air distribution system intended for the heat shrinkage of sleeves on receptacles.

Le tunnel 1 est réalisé en parois de tôle 2disolées (par laine de verre ou analogue) et s'adapte sensiblement aux dimensions d'un convoyeur classique 3 de récipients manchonnés 4 qui traverse le tunnel selon un chemin continu 5 en traversant d'abord la chambre de préchauffage A , puis la chambre de rétreint ou rétraction B et la chambre de finition C. Chaque chambre ou zone est séparée par des chicanes 6 qui entourent sensiblement l'espace libre ménagé pour la circulation des récipients 4.The tunnel 1 is made of sheet metal walls 2 insulated (by glass wool or the like) and adapts substantially to the dimensions of a conventional conveyor 3 of sleeved containers 4 which crosses the tunnel along a continuous path 5 by first crossing the preheating chamber A, then the shrinking or shrinking chamber B and the finishing chamber C. Each chamber or zone is separated by baffles 6 which substantially surround the free space provided for the circulation of the containers 4.

Conformément à une originalité de l'invention, le ventilateur 7,mû.par le moteur 8, aspire directement son air, par la conduite 9, dans la chambre de préchauffage A. En outre, ce ventilateur est surmonté d'un caisson creux 10 ou vase d'expansion fermé par une plaque perforée 11 dans les trous de laquelle sont montés des tubes flexibles 12. Le nombre de perforations 13 de la plaque 11 (voir figure 3) peut être bien entendu quelconque, par exemple six, huit, dix ou plus. La plupart des flexibles 12 supportent à leur extrémité une buse 14 à bords pincés qui délivre une mince lame d'air correspondant à la largeur de la fente sélectionnée. Ces séries de buses 14 entourent le récipient manchonné 4 (voir figure 2) qui circule dans le tunnel au niveau de la chambre B où s'effectue la rétraction du manchon par orientation convenable et très souple des lames d'air issues des buses réglables.In accordance with an originality of the invention, the fan 7, driven by the motor 8, draws its air directly, through the line 9, into the preheating chamber A. In addition, this fan is surmounted by a hollow box 10 or expansion vessel closed by a perforated plate 11 in the holes of which flexible tubes are mounted 12. The number of perforations 13 of the plate 11 (see FIG. 3) can of course be any, for example six, eight, ten or more. Most of the hoses 12 support at their end a nozzle 14 with pinched edges which delivers a thin air gap corresponding to the width of the selected slot. These series of nozzles 14 surround the sleeved container 4 (see FIG. 2) which circulates in the tunnel at the level of the chamber B where the sleeve is retracted by suitable and very flexible orientation of the air knives coming from the adjustable nozzles.

Selon une réalisation avantageuse, au moins un flexible 12' est relié à un diffuseur fixe ou mobile 15 placé dans la chambre de finition C. L'air sous pression qui émane de ce diffuseur joue le rôle de barrière à la sortie de l'air chaud issu de la chambre de ré-' treint B et oblige ce dernier à être refoulé dans le sens de la flèche 16 du côté de la chambre de préchauffage A. De cette façon il n'y a pas ou peu de déperdition calorifique à l'extérieur du tunnel et l'air tiède de la chambre A, au lieu de s'échapper dans l'atmosphère est récupéré directement par le ventilateur 7.According to an advantageous embodiment, at least one flexible 12 ′ is connected to a fixed or mobile diffuser 15 placed in the finishing chamber C. The pressurized air which emanates from this diffuser acts as a barrier to the exit of the air. hot derived from the re- chamber 'hugged B and requires the latter to be discharged in the direction of arrow 16 toward the preheating chamber A. in this way there is little or no heat loss in outside the tunnel and the warm air of room A, instead of escaping into the atmosphere is recovered directly by the fan 7.

Le chauffage complémentaire de cet air tiède peut être obtenu par tout moyen connu. Ainsi on peut adapter des résistances électriques dans le mandrin 17 qui supporte la buse 14. Selon une variante, de telles résistances peuvent être installées dans le boîtier 10 qui surmonte le ventilateur 7.The additional heating of this warm air can be obtained by any known means. Thus, electrical resistances can be adapted in the mandrel 17 which supports the nozzle 14. According to a variant, such resistors can be installed in the housing 10 which surmounts the fan 7.

Bien entendu, le couvercle ou chapeau 18 du tunnel 1 est de préférence monté de façon amovible pour pouvoir intervenir, s'il y a lieu, lors des opérations de rétreint et permettre une ouverture automatique en cas d'arrêt du convoyeur en évitant ainsi une surchauffe des produits à l'intérieur du tunnel.Of course, the cover or cap 18 of the tunnel 1 is preferably removably mounted in order to be able to intervene, if necessary, during the shrinking operations and allow automatic opening in the event of the conveyor stopping thereby avoiding overheating of products inside the tunnel.

Outre les avantages précités du dispositif selon l'invention il faut signaler que le règlage de température s'effectue par simple écartement des buses par 'rapport au récipient manchonné; en outre, cette température peut être régulée par thermostat au niveau des résistances électriques précitées.In addition to the aforementioned advantages of the device according to the invention it should be noted that the temperature adjustment is effected simply by spacing of the nozzles' relative to the sleeve-mounted container; in addition, this temperature can be regulated by thermostat at the aforementioned electrical resistances.

Claims (4)

1. Appareillage pour la rétraction à chaud de manchons thermoplastiques autour de récipients circulant sur un convoyeur, caractérisé en ce qu'il comporte : a)un tunnel (1) dans lequel passe le convoyeur (3) à récipients (4) et divisé en trois zones contigües communiquant entre elles dont une zone ou chambre de préchauffage (A), une chambre de rétreint (B) et une chambre de finition (C) ; b) un ventilateur(7) alimenté par l'air de la chambre de préchauffage (A) sur sa sortie de refoulement(9) et muni d'un vase d'expansion(10) fermé par une plaque perforée(11) sur laquelle se raccordent des séries de tubes creux flexibles (12) recevant pour la plupart une buse(14) de soufflage d'air ; lesdites buses, orientables en toutes directions, se trouvant en cours d'opération dans la chambre de rétreint (B) alors qu'au moins un tube flexible (12) est relié à un diffuseur (15), fixe ou mobile, situé au niveau de la chambre de finition (C) et dont l'air de sortie pressurisé constitue une barrière obligeant l'air chaud de la chambre de rétreint (B) à s'écouler vers la chambre de préchauffage (A).1. Apparatus for the hot shrinkage of thermoplastic sleeves around containers circulating on a conveyor, characterized in that it comprises: a) a tunnel (1) through which the conveyor (3) passes to receptacles (4) and divided into three contiguous zones communicating with each other including a preheating zone or chamber (A), a shrinking chamber (B) and a finishing chamber (C); b) a fan (7) supplied by the air from the preheating chamber (A) on its discharge outlet (9) and provided with an expansion vessel (10) closed by a perforated plate (11) on which are connected series of flexible hollow tubes (12) receiving for the most part a nozzle (14) for blowing air; said nozzles, orientable in all directions, being in operation in the necking chamber (B) while at least one flexible tube (12) is connected to a diffuser (15), fixed or mobile, located at the level from the finishing chamber (C) and whose pressurized outlet air constitutes a barrier forcing the hot air from the shrinking chamber (B) to flow towards the preheating chamber (A). 2. Appareillage selon la revendication 1, caractérisé en ce que le tunnel (1), dont les parois latérales (21) sont calorifugées et le couvercle 18 amovible, est muni de chicanes (6) pour fermer au maximum les contours de l'espace libre ménagé pour la circulation des récipients (4) sur le convoyeur (3)2. Apparatus according to claim 1, characterized in that the tunnel (1), whose side walls (21) are insulated and the removable cover 18, is provided with baffles (6) to close the contours of the space as much as possible. free space for the circulation of containers (4) on the conveyor (3) 3. Appareillage selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que chaque buse (14) est munie de résistances chauffantes (17).3. Apparatus according to any one of claims 1 or 2, characterized in that each nozzle (14) is provided with heating resistors (17). 4. Appareillage selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le boîtier ou vase d'expansion (10) du ventilateur (7) est muni de résistances chauffantes.4. Apparatus according to any one of claims 1 or 2, characterized in that the housing or expansion tank (10) of the fan (7) is provided with heating resistors.
EP82400224A 1981-02-13 1982-02-09 Apparatus for the heat shrinking of thermoplastic sleeves on containers Expired EP0058602B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82400224T ATE9567T1 (en) 1981-02-13 1982-02-09 DEVICE FOR HEAT SHRINKING OF THERMOPLASTIC SLEEVES ON CONTAINERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8102809A FR2499941A1 (en) 1981-02-13 1981-02-13 APPARATUS FOR HOT RETRACTION OF THERMOPLASTIC SLEEVES AROUND CONTAINERS
FR8102809 1981-02-13

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EP0058602A1 true EP0058602A1 (en) 1982-08-25
EP0058602B1 EP0058602B1 (en) 1984-09-26

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EP (1) EP0058602B1 (en)
AT (1) ATE9567T1 (en)
DE (1) DE3260800D1 (en)
FR (1) FR2499941A1 (en)

Cited By (7)

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GB2185958A (en) * 1986-02-04 1987-08-05 Secomak Air Products Limited Apparatus for heat-shrinking sleeves onto articles
FR2628093A1 (en) * 1988-03-04 1989-09-08 Owens Illinois Glass Container PREHEATED OVEN FOR GLASS CONTAINERS FOR RECEIVING HEAT SHRINK LABELS
US4979314A (en) * 1988-07-13 1990-12-25 Sleever International Company Method of controlling the temperature in a tunnel which is open at both ends, and apparatus for implementing the method
US5031298A (en) * 1989-05-11 1991-07-16 Sleever International Company Method of controlling constant temperature inside a shrink-fitting tunnel
US6925777B2 (en) * 2003-07-31 2005-08-09 Sleever International Company Method and a machine for heat-shrinking heat-shrink sleeves engaged individually on articles such as bottles
EP2103527A1 (en) * 2006-12-15 2009-09-23 Fuji Seal International, Inc. Heat shrinking apparatus for shrink film
DE102018132737A1 (en) * 2018-12-18 2020-06-18 Krones Aktiengesellschaft Process and shrink tunnel for shrinking thermoplastic packaging material onto articles

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Publication number Priority date Publication date Assignee Title
JP4243259B2 (en) * 2005-04-13 2009-03-25 サントリー株式会社 Packaging material mounting method and packaging material mounting apparatus

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GB575710A (en) * 1944-03-20 1946-03-01 James Mcdonald Conveyor type heating furnaces
FR1332396A (en) * 1962-08-25 1963-07-12 Weldotron Corp Apparatus and method for shrinking packaging envelopes
FR1404840A (en) * 1964-08-05 1965-07-02 Diamond National Corp Method and apparatus for producing packages from heat shrinkable film
US3399506A (en) * 1965-04-01 1968-09-03 Grace W R & Co Process and apparatus for simultaneously heat sealing and heat shrinking film

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB575710A (en) * 1944-03-20 1946-03-01 James Mcdonald Conveyor type heating furnaces
FR1332396A (en) * 1962-08-25 1963-07-12 Weldotron Corp Apparatus and method for shrinking packaging envelopes
FR1404840A (en) * 1964-08-05 1965-07-02 Diamond National Corp Method and apparatus for producing packages from heat shrinkable film
US3399506A (en) * 1965-04-01 1968-09-03 Grace W R & Co Process and apparatus for simultaneously heat sealing and heat shrinking film

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185958A (en) * 1986-02-04 1987-08-05 Secomak Air Products Limited Apparatus for heat-shrinking sleeves onto articles
FR2628093A1 (en) * 1988-03-04 1989-09-08 Owens Illinois Glass Container PREHEATED OVEN FOR GLASS CONTAINERS FOR RECEIVING HEAT SHRINK LABELS
US4979314A (en) * 1988-07-13 1990-12-25 Sleever International Company Method of controlling the temperature in a tunnel which is open at both ends, and apparatus for implementing the method
US5031298A (en) * 1989-05-11 1991-07-16 Sleever International Company Method of controlling constant temperature inside a shrink-fitting tunnel
US6925777B2 (en) * 2003-07-31 2005-08-09 Sleever International Company Method and a machine for heat-shrinking heat-shrink sleeves engaged individually on articles such as bottles
EP2103527A1 (en) * 2006-12-15 2009-09-23 Fuji Seal International, Inc. Heat shrinking apparatus for shrink film
EP2103527A4 (en) * 2006-12-15 2014-04-02 Fuji Seal Int Inc Heat shrinking apparatus for shrink film
DE102018132737A1 (en) * 2018-12-18 2020-06-18 Krones Aktiengesellschaft Process and shrink tunnel for shrinking thermoplastic packaging material onto articles

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ATE9567T1 (en) 1984-10-15
DE3260800D1 (en) 1984-10-31
FR2499941A1 (en) 1982-08-20
EP0058602B1 (en) 1984-09-26
FR2499941B3 (en) 1983-12-30

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