EP2547590B1 - Tunnel de rétraction pour l'application de films rétractables, procédé pour faire fonctionner ou commander un tunnel de rétraction et dispositif de production comportant un tunnel de rétraction - Google Patents

Tunnel de rétraction pour l'application de films rétractables, procédé pour faire fonctionner ou commander un tunnel de rétraction et dispositif de production comportant un tunnel de rétraction Download PDF

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Publication number
EP2547590B1
EP2547590B1 EP11702142.8A EP11702142A EP2547590B1 EP 2547590 B1 EP2547590 B1 EP 2547590B1 EP 11702142 A EP11702142 A EP 11702142A EP 2547590 B1 EP2547590 B1 EP 2547590B1
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European Patent Office
Prior art keywords
tunnel
temperature
shrink
shrink tunnel
mode
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EP11702142.8A
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German (de)
English (en)
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EP2547590A1 (fr
Inventor
Christian Schilling
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KHS GmbH
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KHS GmbH
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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/40—Arrangements of controlling or monitoring devices
    • 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
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/24—Cooling filled packages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0059—Regulation involving the control of the conveyor movement, e.g. speed or sequences
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0087—Automatisation of the whole plant or activity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices

Definitions

  • the invention relates to a shrink tunnel for applying shrink films on packaging units or containers according to the preamble of claim 1 or 2, to a method for operating or controlling a shrink tunnel according to the preamble of claim 11 or 12 and to a production plant with a shrink tunnel according to the preamble.
  • a downstream packaging machine in which Packing means, for example, stacked together on packaging elements to packaging groups with a predetermined number of packaging and the packaging material groups thus generated are each covered with a shrink film.
  • Packing means for example, stacked together on packaging elements to packaging groups with a predetermined number of packaging and the packaging material groups thus generated are each covered with a shrink film.
  • a shrinking tunnel following the packaging machines a fixed or fixed packaging unit is formed from each packaging material group by shrinking the shrinking film under the action of heat, in particular also by blowing with hot air.
  • the shrink tunnel which generally has a plurality of heating or tunnel zones, each having its own heating means, in successive heating or tunneling zones of the packaging units or packages all tunnel zones by appropriate control or regulation of the heating power of the heating means constantly required for the shrinkage of the shrink films target operating temperature, for example a temperature in the range between 195 ° C and 210 ° C, preferably at a temperature of about 200 ° C, even during Operational disturbances in which no packaging or packaging groups for shrinking the shrink film are moved through the shrink tunnel and, for example, by disturbances in the Shrink tunnels preceding or subsequent investment components or machines are conditional.
  • the heating means are usually electric or gas-operated heating elements, in particular those of hot air blowers.
  • a shrink tunnel is known ( US 2004/0083687 A1 ) for applying shrink films to articles or packaging units.
  • a control unit provided on the shrink tunnel initiates a standby or economy mode with reduced power during a longer shutdown.
  • the duration of the interruption can be set manually at the control unit.
  • a shrink tunnel internal conveyor belt on which the objects or packaging units are moved through the Schrurnpftunnel is turned off when initiating the stand-by mode and only switched on when resetting the shrink tunnel in the normal operating state, when the shrink tunnel has reached the target operating temperature.
  • the invention has for its object to provide a shrink tunnel, which avoids these disadvantages.
  • a shrink tunnel according to claim 1 or 2 is formed.
  • a method for operating or controlling a shrink tunnel is the subject matter of claim 11 or 12.
  • a production plant for manufacturing packaging containers or containers with these enclosing and / or fixing shrink films is the subject of patent claim 18.
  • FIG. 1 in a simplified functional representation of a plant section 1 of a production plant for product-filled packaging 2, for example, with a liquid product, e.g. filled with a beverage packaging 2 shows, explained in more detail.
  • the plant section of the production plant shown in the figure and generally designated 1 is used specifically for assembling the packaging material 2 filled with the product into packaging material groups 3 and for packaging each packaging material group 3 and the like. using a shrink film, so that the packaging material groups 3 each form after shrinking the shrink film packaging units or container 4, each with a predetermined number of packaging 2.
  • the packaging units or containers 4 are fed via an external conveyor 11 to a further use or treatment, for example a device designed as a palletizer.
  • the buffer or storage unit 5, the packaging machine 7 and the shrink tunnel 10 are interconnected by a transport system 12 formed by at least one conveyor or conveyor belt, but the shrink tunnel 10 is an independent and independently controllable transport system for the packaging material groups 3 and the packaging units or container 4 formed from these in the form of at least one endless circulating drivable conveyor belt 13 (eg Drahtgliedergurtkette or also hinge band) has.
  • a transport system 12 formed by at least one conveyor or conveyor belt
  • the shrink tunnel 10 is an independent and independently controllable transport system for the packaging material groups 3 and the packaging units or container 4 formed from these in the form of at least one endless circulating drivable conveyor belt 13 (eg Drahtgliedergurtkette or also hinge band) has.
  • the shrink tunnel 10 for example, the usual for this system components construction.
  • the shrink tunnel is designed, for example, with a plurality of heating or tunnel zones 14 which follow each other in the direction of transport A, for example with a total of three tunnel zones 14, as a result of which u.a. It is ensured that in normal trouble-free operation of the system or the shrink tunnel 10 even with a dense sequence of moving in the transport direction A through the shrink tunnel 10 Packstoffmaschine 3 shrinking of the shrink film on each packaging material group 3 takes place with the required quality.
  • Each tunnel zones 14 is provided in the illustrated embodiment with its own, in the figure only very schematically 15 heating means which effect shrinkage of the shrink film on the packaging groups 3 by heat and at least one hot air generator consisting of at least one fan and at least one Fan associated with heater and optionally include at least one additional heater for a basic heating power.
  • at least one hot air generator consisting of at least one fan and at least one Fan associated with heater and optionally include at least one additional heater for a basic heating power.
  • slat curtains 16 are provided at the inlet and at the outlet of the shrink tunnel.
  • the shrink tunnel 10 also includes a cooling device, not shown (eg cooling air blower) with which the at least one conveyor belt 13 is cooled on a conveyor belt length outside of the shrink tunnel 10 and in the circumferential direction in front of the inlet of the shrink tunnel 10, so that each of the Shrink tunnel 10 supplied and wrapped with the shrink wrap packaging material group 3 is first transferred to the cooled conveyor belt 13. Furthermore, the shrink tunnel 10 in the direction of transport A to the tunnel zones 14 following a in the figure indicated by broken lines cooling zone 17, which among other things serves to cool the packaging units or container 4 and this example is equipped with a cooling air blower.
  • a cooling device not shown (eg cooling air blower) with which the at least one conveyor belt 13 is cooled on a conveyor belt length outside of the shrink tunnel 10 and in the circumferential direction in front of the inlet of the shrink tunnel 10, so that each of the Shrink tunnel 10 supplied and wrapped with the shrink wrap packaging material group 3 is first transferred to the cooled conveyor belt 13.
  • the shrink tunnel 10 in the direction of transport A to the tunnel zones 14
  • a special feature of the system or the shrink tunnel 10 is that when occurring in the system disturbances of the shrink tunnel 10 and its tunnel zones 14 occupy a standby mode or standby mode with respect to the normal, trouble-free operating condition significantly reduced power and after removing the fault again automatically return to normal operating condition.
  • Such disturbances causing the standby mode are, for example, a number of packaging means 2 in the buffer and storage unit 5 which falls below a predetermined minimum quantity of packaging material and / or a packaging jam within the installation, for example in an installation section preceding and / or following the shrinking tunnel 10 with respect to the transport direction A.
  • the control of the shrink tunnel 10 between the two operating states is carried out automatically, ie in the illustrated embodiment by an electronic control device 18, for example, the shrunken tunnel 10 associated control device with its own intelligence and also controls the heating means 15 to comply with the respectively required tunnel temperature or controls ,
  • the control device 18, which is connected, for example via an unillustrated bus system with other control devices or with a central or higher-level system control, controls the switching between the operating states of the shrink tunnel 10 (normal operating mode / standby mode) in response to error messages such as the higher-level system control and / or depending on other signals.
  • the control device 18 for detecting interference present signals are at least partially processed, which are used to control other equipment components, such as the control of the packaging machine 7.
  • Such signals are eg "shortage in the buffer or storage unit 5" and / or “lack of packaging in the packaging machine 7 ", and / or” minimum product “as examples of fault conditions in the transport direction A in front of the shrink tunnel 10, and / or” back pressure external "and / or” lack of pallets "for fault conditions in the transport direction A after the shrink tunnel 10, etc.
  • the standby mode which is preferably also on-site, i. can be triggered at the shrink tunnel 10 or at the control device 18 is initiated delayed with a time delay .DELTA.t1.
  • the duration of this time delay .DELTA.t1 is preferably chosen to be sufficiently long, so that those packaging material groups 3, which at the time of receipt of at least one causing the transition to the stand mode error message already in the shrink tunnel 10 and possibly also in a shrink tunnel with respect to the transport direction A preceding Section of the system, for example, in the packaging machine 7 and / or on the transport system 12 between the packaging machine 7 and the shrink tunnel 10 are reliably treated in the shrink tunnel 10 with high reliability, ie the shrink film is shrunk even on these groups of packaging 2 still properly.
  • the time delay ⁇ t1 at which the standby mode is initiated is, for example, 1 to 2 minutes.
  • the return of the shrink tunnel 10 from the standby mode in the normal operating mode or mode is also delayed, ie with a time delay .DELTA.t2, for example, from 2 to after the elimination of the error message (s) and due to the time required for re-heating to the desired operating temperature 3 minutes.
  • the packaging machine 7 is turned on again, which of course was switched off during standby mode of the shrink tunnel 10 or in a stand-by mode.
  • a re-switching the packaging machine 7 and the packaging material groups 3 to the shrink tunnel 10 promotional transport system 12 takes place only when the tunnel temperature has reached a target operating temperature strongly approximated temperature value.
  • the switching on of the packaging machine 7 and preferably also of the transport system 12 is then caused by a corresponding signal supplied by the control device 18.
  • the standby mode results in disturbances in the system a very significant energy savings, in particular, a very significant savings in heating energy and thus a significant reduction in exhaust emissions and in particular the CO2 emission in gas-powered shrink tunnel 10.
  • the operating temperature of the shrink tunnel is maintained at the normal target operating temperature, for example at the operating temperature of 200 ° C.
  • This requires a heating power that, while reduced due to the lack of moving through the shrink tunnel product groups 3 compared to the heating power in normal, trouble-free operation, but still means a heating power that corresponds to about 40% to 50% of the total power of the shrink tunnel in normal trouble-free operation and for example in conventional shrink tunnels in the range between 40 KW and 45 KW.
  • the nominal operating temperature of which is 200 ° C in normal trouble-free operation at a temperature drop ⁇ T of 50 ° C, i. to a reduced tunnel temperature of 150 ° C in the standby mode, a reduction of the heating power to 5.4 KW and a temperature decrease ⁇ T of 80 ° C, i. to a reduced tunnel temperature of 120 ° C, a reduction of the heating power to 4.6 kW found, the heating times to the target operating temperature 2.5 minutes at the temperature reduction .DELTA.T of 50 ° C and 4 minutes at the temperature drop .DELTA.T of 80 ° C.
  • the energy savings for a 10-minute disruption or interruption of operation is between 1.44 KWh and 5.76 KWh, and for a 30-minute disturbance or interruption is approximately 18 KWh, including that for the reheat after completion of the operation destruction necessary heating energy.
  • the operating parameters and the standby mode characterizing operating parameters in particular the target operating temperature, the temperature decrease .DELTA.T and / or the reduced tunnel temperature, the time delays At1 and .DELTA.t2, the reduction of the transport speed of the shrink tunnel transport system and the at least one conveyor belt 13, etc. are as a control - or control parameters on the control device 18 adjustable and / or stored there in a data memory.
  • At least one further standby mode or standby mode is provided for the shrink tunnel 10, which is initiated according to other criteria or parameters and / or has other measures than the standby mode described above, which is initiated in case of malfunction in the system.
  • This further standby mode can be provided, for example, for planned production interruptions, in particular of known frequency, preferably with a longer duration and / or with planned start and end times, for example for planned or predetermined production breaks. Since the end of such scheduled production stoppages, for example the end of a daily recurring break, and hence the time at which production resumes, may be brought to a deeper standby mode during such a scheduled or fixed stoppage of production, i.
  • the tunnel temperature in the tunnel zones 14 can be further reduced in comparison to the disruption-related standby mode, since the re-start, in particular the re-heating of the tunnel zones can be planned and timed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Basic Packing Technique (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Claims (15)

  1. Tunnel de rétraction destiné à être utilisé dans une installation de production servant à fabriquer des unités d'emballage ou des colis (4) composés de moyens d'emballage (2) remplis d'un produit et avec un film rétractable rétracté, comprenant
    au moins une zone de tunnel (14) pourvue de moyens de chauffage (15) servant à rétracter le film rétractable sous l'action de la chaleur sur les unités d'emballage (4) déplacées à travers la zone de tunnel, à une température de tunnel, qui est une température de fonctionnement théorique dans l'état de fonctionnement ou le mode de fonctionnement normal sans perturbation du tunnel de rétraction (10), sachant que le tunnel de rétraction (10) présente, en tant qu'état de fonctionnement supplémentaire, au moins un mode de veille présentant une puissance de chauffage réduite par rapport au mode de fonctionnement normal et une vitesse de transport d'un transporteur (13) côté tunnel de rétraction réduite par rapport au mode de fonctionnement normal, et
    un dispositif de commande (18) servant à commander les modes de fonctionnement, sachant que le dispositif de commande (18) ramène, lors du retour du tunnel de rétraction (10) dans le mode de fonctionnement normal, la température de tunnel à la température de fonctionnement théorique,
    caractérisé en ce
    que le dispositif de commande (18) augmente à nouveau, après le retour du tunnel de rétraction (10) dans le mode de fonctionnement normal, dès qu'une première valeur de seuil de température de la température de tunnel encore inférieure à la température de fonctionnement théorique est atteinte, la vitesse de transport du transporteur (13) côté tunnel de rétraction et/ou génère, lorsqu'une deuxième valeur de seuil plus proche de la température de fonctionnement théorique est atteinte, un signal donnant le feu vert pour la production.
  2. Tunnel de rétraction selon la revendication 1, caractérisé en ce que le dispositif de commande (18) est réalisé en vue du lancement du mode de veille en présence d'un signal fourni par un dispositif de commande maître de l'installation de production, indiquant une perturbation du fonctionnement de l'installation de production.
  3. Tunnel de rétraction selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de commande (18) est réalisé afin de commander ou de régler la température de tunnel dans le tunnel de rétraction et/ou dans au moins une zone de tunnel (14) par l'intermédiaire de la puissance des moyens de chauffage (15) générant la température de tunnel de telle manière qu'au cours du mode de fonctionnement normal, la température de tunnel correspond à une température de fonctionnement théorique dans la plage comprise entre 190 et 210 °C, de préférence à une température de fonctionnement théorique de 200 °C et que dans le mode de veille, la température de tunnel dans la zone de tunnel (14) au moins au nombre de une est abaissée d'une valeur de température (Δt) allant de 50 °C à 80 °C par rapport à la température de fonctionnement théorique, de manière à s'établir à une température de tunnel réduite.
  4. Tunnel de rétraction selon l'une quelconque des revendications précédentes, caractérisé par plusieurs zones de tunnel (14) se suivant les unes les autres dans la direction de transport (A), sachant que sont attribués à chaque zone de tunnel (14) des moyens de chauffage (15), qui peuvent être commandés ou réglés en toute autonomie en vue de la commutation des modes de fonctionnement, à savoir de manière préférée en fonction de paramètres de commande ou de réglage réglés ou enregistrés dans l'unité de commande (18).
  5. Tunnel de rétraction selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de chauffage (15) de la au moins une zone de tunnel peuvent être commandés ou réglés entre une puissance de chauffage, correspondant à une charge de base, allant de 10 KW à 14 KW et une puissance de chauffage maximale de 46 KW - 50 KW.
  6. Tunnel de rétraction selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de commande (18) est réalisé, en vue du lancement du mode de veille en présence du signal indiquant la perturbation de fonctionnement, en vue d'un déclenchement du mode de veille avec un départ différé (Δt1), par exemple avec un départ différé d'une durée comprise dans la plage allant de 1 à 2 minutes.
  7. Tunnel de rétraction selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de commande (18) est réalisé en vue d'une réduction de la vitesse de transport du transporteur (13) côté tunnel de rétraction à 20 % à 40 % de la vitesse de transport du mode de fonctionnement normal et/ou aux fins de la désactivation d'un refroidissement de l'élément de transport (13) côté tunnel de rétraction et/ou d'un refroidissement qui sert à refroidir les unités d'emballage (4) après la rétraction du film rétractable, et/ou aux fins de la désactivation de soufflantes des moyens de chauffage (15) respectivement après le lancement du mode de veille.
  8. Tunnel de rétraction selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de commande (18) est réalisé de telle sorte qu'il augmente à nouveau, lorsque la première valeur de seuil de température, qui est inférieure à la température de fonctionnement théorique, de 5 % à 7 %, est atteinte, la vitesse de transport du transporteur (13) côté tunnel de rétraction et/ou active un refroidissement dudit système de transport, et/ou en ce que le dispositif de commande (18) est réalisé de telle sorte qu'il génère, lorsque la deuxième valeur de seuil, qui est inférieure à la température de fonctionnement théorique de 2 % à 5 %, le signal donnant le feu vert pour la production et/ou active un refroidissement pour les unités d'emballage ou les colis (4).
  9. Procédé servant à faire fonctionner ou à commander un tunnel de rétraction destiné à être utilisé dans une installation de production servant à fabriquer des unités d'emballage ou des colis (4) composés de moyens d'emballage (2) remplis d'un produit et avec un film rétractable rétracté, sachant que le tunnel de rétraction forme au moins une zone de tunnel (14) pourvue de moyens de chauffage (15) servant à rétracter le film rétractable sous l'action de la chaleur sur les unités d'emballage (4) déplacées à travers le tunnel de rétraction (10) à une température de tunnel, qui est une température de fonctionnement théorique dans l'état de fonctionnement ou le mode de fonctionnement normal sans perturbation du tunnel de rétraction (10), qu'en présence de perturbations pour le tunnel de rétraction (10), un mode de veille est déclenché par une commande du temps et/ou par un signal de commande avec une puissance réduite par rapport au mode de fonctionnement normal, en particulier avec une puissance de chauffage réduite et une vitesse de transport réduite d'un transporteur (13) côté tunnel de rétraction,
    caractérisé en ce
    que la vitesse de transport du transporteur (13) côté tunnel de rétraction est à nouveau augmentée après le retour du tunnel de rétraction (10) dans le mode de fonctionnement normal dès qu'une première valeur de seuil de température de la température de tunnel encore inférieure à la température de fonctionnement théorique est atteinte, et/ou en ce qu'un signal donnant le feu vert pour la production est généré lorsqu'une deuxième valeur de seuil plus proche de la température de fonctionnement théorique est atteinte.
  10. Procédé selon la revendication 9, caractérisé en ce que la température de tunnel dans le tunnel de rétraction (10) et/ou dans la zone de tunnel (14) au moins au nombre de une est réglée ou commandé par l'intermédiaire de la puissance des moyens de chauffage (15) générant la température de tunnel de telle manière qu'au cours du mode de fonctionnement normal, la température de tunnel correspond à une température de fonctionnement théorique dans la plage comprise entre 190 et 210 °C, de préférence à une température de fonctionnement théorique de 200 °C et que dans le mode de veille, la température de tunnel dans la zone de tunnel (14) au moins au nombre de une est abaissée d'une valeur de température (ΔT) allant de 50 °C à 80 °C par rapport à la température de fonctionnement théorique de manière à s'établir à une température de tunnel réduite.
  11. Procédé selon l'une quelconque des revendications 9 - 10, caractérisé en ce que les moyens de chauffage (15) de la zone de tunnel (14) au moins au nombre de une sont commandés ou réglés entre une puissance de chauffage correspondant à une charge de base allant de 10 KW à 14 KW et une puissance de chauffage maximale de 46 KW - 50 KW.
  12. Procédé selon l'une quelconque des revendications 9 - 11, caractérisé en ce que le mode de veille est lancé avec un départ différé (Δt1), par exemple avec un départ différé d'une durée comprise dans la plage allant de 1à 2 minutes.
  13. Procédé selon l'une quelconque des revendications 9 - 12, caractérisé en ce que sont effectuées, après le déclenchement du mode de veille, une réduction de la vitesse de transport du transporteur (13) côté tunnel de rétraction à 20 % à 40 % de la vitesse de transport du mode de fonctionnement normal et/ou une désactivation d'un refroidissement de l'élément de transport (13) côté tunnel de rétraction et/ou d'un refroidissement, qui sert à refroidir les unités d'emballage (4) après la rétraction du film rétractable, et/ou une désactivation de soufflantes des moyens de chauffage (15).
  14. Procédé selon l'une quelconque des revendications 9 - 13, caractérisé en ce que la vitesse de transport du transporteur (13) côté tunnel de rétraction est à nouveau augmentée et/ou un refroidissement dudit système de transport est activé lorsque la première valeur de seuil de température, qui est inférieure à la température de fonctionnement théorique de 5 % à 7 %, est atteinte, et/ou en ce que le signal donnant le feu vert pour la production est généré et/ou un refroidissement pour les unités d'emballage ou colis (4) est activé lorsque la deuxième valeur de seuil qui est inférieure à la température de fonctionnement théorique de 2 % à 5 %, est atteinte.
  15. Installation de production équipée d'un tunnel de rétraction (10) monté en aval d'une machine d'emballage (7), caractérisée en ce que le tunnel de rétraction est réalisé selon l'une quelconque des revendications précédentes 1 - 8.
EP11702142.8A 2010-03-16 2011-01-25 Tunnel de rétraction pour l'application de films rétractables, procédé pour faire fonctionner ou commander un tunnel de rétraction et dispositif de production comportant un tunnel de rétraction Active EP2547590B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010011640.8A DE102010011640B4 (de) 2010-03-16 2010-03-16 Schrumpftunnel zum Aufbringen von Schrumpffolien, Verfahren zum Betrieb oder Steuern eines Schrumpftunnels sowie Produktionsanlage mit einem Schrumpftunnel
PCT/EP2011/000284 WO2011113506A1 (fr) 2010-03-16 2011-01-25 Tunnel de rétraction pour l'application de films rétractables, procédé pour faire fonctionner ou commander un tunnel de rétraction et dispositif de production comportant un tunnel de rétraction

Publications (2)

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EP2547590A1 EP2547590A1 (fr) 2013-01-23
EP2547590B1 true EP2547590B1 (fr) 2016-03-30

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EP11702142.8A Active EP2547590B1 (fr) 2010-03-16 2011-01-25 Tunnel de rétraction pour l'application de films rétractables, procédé pour faire fonctionner ou commander un tunnel de rétraction et dispositif de production comportant un tunnel de rétraction

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US (1) US9926091B2 (fr)
EP (1) EP2547590B1 (fr)
BR (1) BR112012021983A2 (fr)
DE (1) DE102010011640B4 (fr)
ES (1) ES2568526T3 (fr)
PL (1) PL2547590T3 (fr)
WO (1) WO2011113506A1 (fr)

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Also Published As

Publication number Publication date
DE102010011640B4 (de) 2020-03-12
PL2547590T3 (pl) 2016-10-31
US9926091B2 (en) 2018-03-27
WO2011113506A1 (fr) 2011-09-22
US20130000256A1 (en) 2013-01-03
BR112012021983A2 (pt) 2018-01-16
EP2547590A1 (fr) 2013-01-23
ES2568526T3 (es) 2016-04-29
DE102010011640A1 (de) 2011-11-17

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