EP2547590A1 - 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

Info

Publication number
EP2547590A1
EP2547590A1 EP11702142A EP11702142A EP2547590A1 EP 2547590 A1 EP2547590 A1 EP 2547590A1 EP 11702142 A EP11702142 A EP 11702142A EP 11702142 A EP11702142 A EP 11702142A EP 2547590 A1 EP2547590 A1 EP 2547590A1
Authority
EP
European Patent Office
Prior art keywords
tunnel
temperature
shrink
shrink tunnel
operating temperature
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.)
Granted
Application number
EP11702142A
Other languages
German (de)
English (en)
Other versions
EP2547590B1 (fr
Inventor
Christian Schilling
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.)
KHS GmbH
Original Assignee
KHS GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=43911618&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2547590(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by KHS GmbH filed Critical KHS GmbH
Publication of EP2547590A1 publication Critical patent/EP2547590A1/fr
Application granted granted Critical
Publication of EP2547590B1 publication Critical patent/EP2547590B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

  • Shrink tunnel for applying shrink films, method for operating or controlling a shrink tunnel and production plant with a shrinking tunnel
  • the invention relates to a shrink tunnel for applying
  • the packaging such as bottles, cans or other packaging, which were filled in previous investment components or machines with a product, sealed and labeled, a downstream
  • packaging means in which the packaging means are assembled, for example on packaging elements in each case to packaging groups with a predetermined number of packaging and the packaging groups thus produced are each covered with a shrink film.
  • Packaging group formed by shrinking the shrink film under the action of heat, in particular by blowing hot air in each case a fixed or fixed packaging unit.
  • 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 malfunctions in which no packaging or packaging groups for shrinking the shrink film by the
  • Shrink tunnels are moved and, for example, due to disturbances in the shrink tunnel preceding or subsequent investment components or machines are required.
  • the heating means are usually electric or
  • gas-powered heating elements especially those of hot air blowers.
  • the invention has for its object to provide a shrink tunnel, which avoids these disadvantages.
  • a shrink tunnel according to the patent claim 1 is formed.
  • a method for operating or controlling a shrink tunnel is the subject of patent claim 10.
  • a production plant for manufacturing packaging units or containers with these enclosing and / or fixing shrink films is the subject of patent claim 19.
  • the shrink tunnel and / or the method for its control are advantageously designed such that
  • Heating means is controlled or controlled in such a way that during the normal operating mode, the tunnel temperature of the desired operating temperature, for example, a target operating temperature in the range between 190 and 210 ° C, preferably a desired operating temperature of 200 ° C and in standby mode, the tunnel temperature in the at least one tunnel zone to a temperature amount, for example by a temperature amount of 50 ° C to 80 ° C compared to the target operating temperature to a reduced
  • Tunnel zones each associated with their own heating means, these are controlled or controlled independently for switching the operating modes, preferably depending on set or stored in the control unit or control parameters,
  • the setpoint operating temperature and / or the reduced tunneling temperature are adjustable and / or stored in the control device as control or regulating parameters
  • the heating means of the at least one tunnel zone (14) are controlled or regulated between a base load corresponding heating power and a maximum heating power, for example between a heating power (base load) of 10 KW to 14 KW and a heating power of 46 KW - 50 KW, and / or
  • Control device of the production plant and / or initiated with a time delay, for example with a time delay in the range of 1 to 2 minutes,
  • Transport speed of a shrink tunnel side carrier for example, a reduction of the transport speed to 20% to 40% of the transport speed of the normal operating mode and / or a shutdown of cooling of the shrink tunnel side transport element and / or cooling, which serves to cool the packaging units after shrinking of the shrink film,
  • the tunnel temperature is set to
  • blower of the heating means when omitted fault message or when resetting the shrink tunnel in the normal operating mode, the blower of the heating means are turned on, and / or
  • shrink tunnel side conveyor (13) is again increased, for example, at a first temperature threshold, which is about 5% below the temperature threshold,
  • Set operating temperature cooling of this transport system are switched on, for example, at a first temperature threshold, which is about 5% below the temperature threshold,
  • Target operating temperature further approximated threshold, which is, for example, 2% below the desired operating temperature, generates a production release causing signal and / or the cooling for the
  • Packaging units or containers (4) is switched on
  • Production plant is used specifically to assemble the filled with the product packaging 2 to packaging groups 3 and for packaging each
  • Packaging group 3 u.a. using a shrink wrap, so that the
  • Packaging units or container 4 each with a predetermined number of packaging 2 form.
  • the packaging means 2 are, for example, bottles, cans or similar containers which are filled, sealed and labeled with the product.
  • the plant section 1 has for this purpose in a transport direction A, in which the packaging 2 and
  • Packaging groups 3 and finally the packaging units or containers 4 are moved, following one another, inter alia, the following system components with the following functions:
  • a buffer or storage unit 5 which is formed for example by a buffer or storage table and which serves for the intermediate storage of this device via an outer conveyor 6 in the transport direction A supplied packaging 2.
  • Packaging agent groups 3 are formed, in the illustrated
  • each packaging material group 3 including its packaging element 8 is wrapped with the shrink film, preferably such that the overlapping ends of this envelope at the bottom of the packaging element
  • Packing group 3 and the packaging element 8 are located.
  • the packaging elements 8 or these forming blanks are fed in the packaging machine 7 via a feed dog 9 (arrow B).
  • a shrink tunnel 10 in which the shrinking of the shrink film on the respective packaging groups 3 to form the packaging units or container 4, by the action of heat, in particular by the action of hot air on the through the shrink tunnel 10 in
  • Transport direction A moved, wrapped with the shrink film
  • 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, for example, with several heating or tunnel zones 14 following one another in the direction of transport A.
  • 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 Associated fan
  • 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 comprises a cooling device, not shown (for example cooling air blower), with which the at least one conveyor belt 13 on a
  • the shrink tunnel 10 In the trouble-free operating condition of the system, the shrink tunnel 10 is operated in its normal operating state or operating mode, the u.a. characterized by the following operating parameters:
  • Shrink tunnel 10 or its tunnel zones 14 are located on
  • Target operating temperature which is sufficient for the shrinking of the shrink film with the desired quality.
  • This target operating temperature which is the tunnel temperature in the interior of the shrink tunnel 10 or in the interior of the tunnel zones 14 and in particular also at least the temperature of the hot air introduced into the tunnel zones 14, is for example 200 ° C.
  • the at least one conveyor 13 is driven at production speed, i. at a speed that matches the performance of the plant and thus the performance of packaging machine 7 and the
  • Transport speed of the transport system 12 corresponds and is usually much larger than
  • the heating means 15 are to maintain the desired operating temperature between a basic heating power, which is for example 10-15 KW for each tunnel zone 14, and a maximum heating power or
  • Controlled or regulated total heat output for example, 45-50 KW for each tunnel zone 4.
  • the cooling device 17 or the local, cooling air generating blower is turned on.
  • 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 a respect to the normal, trouble-free operating state significantly reduced power and automatically return to the normal operating state after correcting the fault.
  • Such the standby mode is a standby mode or standby mode with a respect to the normal, trouble-free operating state significantly reduced power and automatically return to the normal operating state after correcting the fault.
  • causing disturbances are, for example, a given one
  • control of the shrink tunnel 10 between the two operating conditions is automatic, i. in the illustrated embodiment by an electronic
  • Control device 18 which is, for example, a shrinking tunnel 10 associated control device with its own intelligence and also regulates or controls the heating means 15 to comply with the respectively required tunnel temperature.
  • the control device 18, for example, via a not shown bus system with other control devices or with a central or higher
  • Control panel is connected, controls the switching between the
  • control device 18 for detecting present disturbances at least partially processed signals that are used to control other system components, for example, to control the
  • Packaging machine 7 Such signals are for example “shortage in the buffer or storage unit 5" and / or “shortage of packaging in the packaging machine 7", and / or “minimum product” as examples of error conditions in
  • Standby mode initiates the following actions, which can be taken individually or in any combination:
  • Control device 18 for adaptation to the concrete
  • Production conditions is adjustable, for example, for each tunnel zone 1 individually.
  • Shrink tunnels 10 applies with electrical energy, while in an operation of the shrink tunnel 10 with gas already for safety reasons the
  • Heating the tunnel zones 10 takes place exclusively with hot air.
  • a gas-driven shrink tunnel 10 inevitably causes a corresponding reduction in the basic heating power, i.
  • the heating elements or gas burners regulate themselves automatically to the required power and switch ggs. also for a short time.
  • Shrink tunnels 10 corresponds.
  • the standby mode which can preferably be triggered on site, ie on the shrink tunnel 10 or on the control device 18, is provided with a
  • the duration of this time delay At1 is preferably selected to be sufficiently long so that such packaging means groups 3 which are already in the shrink tunnel 10 as well as at the time of the input of at least one error message indicating the transition to the stand mode
  • 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 high
  • the time delay At1, 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 to the normal operating mode or mode is also delayed after the error message (s) and due to the time required for re-heating to the target operating temperature, i. with a time delay ⁇ ⁇ 2, for example, from 2 to 3 minutes. Only after the expiration of this time delay is the
  • Packaging machine 7 again turned off, of course, during the standby mode of the shrink tunnel 10 was switched off or in a stand-by mode.
  • a re-switching of the packaging machine 7 and of the packaging material groups 3 to the shrink tunnel 10 preferably takes place
  • Packaging machine 7 and preferably also of the transport system 12 is then caused, for example, 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 the
  • Shrink tunnels at the normal target operating temperature for example, maintained at the operating temperature of 200 ° C. This requires a heating power, which is reduced because of 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, which is about 40% to 50% of
  • Total performance of the shrink tunnel in normal trouble-free operation and corresponds, for example, in conventional shrink tunnels in the range between 40 KW and 45 KW.
  • Target operating temperature in normal trouble-free operation is 200 ° C, was at a temperature drop ⁇ ⁇ 50 ° C, i. on a reduced
  • Tunnel temperature of 150 ° C in standby mode a reduction of the heating power to 5.4 KW and a temperature drop ⁇ of 80 ° C, i. to a reduced tunnel temperature of 120 ° C, a reduction in heating power to 4.6 kW, the heating times to the nominal operating temperature 2.5 minutes at the temperature reduction ⁇ of 50 ° C and 4 minutes at the
  • Standby mode for the temperature drop from the target operating temperature to the reduced tunnel temperature of the standby mode is needed and is for example 8 to 10 minutes, resulting in a significant energy savings potential switching to standby mode. So is the example
  • a significant energy saving results further by switching off the cooling or cooling fan for the at least one conveyor belt 13 and the cooling zone 17 as well as by switching off at least one fan for the hot air in each tunnel zone 14, these fans, for example, a
  • Shrink tunnels 10 in the normal operating state after clearing the error messages takes place, for example, in the following steps:
  • the normal operating mode and the standby mode characterizing operating parameters, in particular the target operating temperature, the
  • Time delays At1 and At2 the reduction of the transport speed of the shrink tunnel side transport system or the at least one
  • Conveyor belt 13, etc. are as control or regulation 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, at
  • 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 predefined ones
  • Shrink tunnel 10 are driven into a lower standby mode, 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.

Landscapes

  • 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)

Abstract

L'invention concerne un tunnel de rétraction à employer dans un dispositif de production pour la fabrication d'unités d'emballage ou d'ensembles d'emballage composés d'éléments d'emballage remplis d'un produit, et d'un film rétractable rétracté sur l'élément d'emballage. Le tunnel de rétraction comporte au moins une zone de tunnel comportant des éléments de chauffe pour la rétraction du film rétractable sous l'effet de la chaleur sur les unités d'emballage traversant la zone de tunnel, à une température de tunnel étant une température de fonctionnement de consigne dans l'état de fonctionnement ou le mode de fonctionnement normal du tunnel de rétraction, exempt de perturbations.
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)

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

Family

ID=43911618

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (7)

Country Link
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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DE102016211619A1 (de) * 2016-06-28 2017-12-28 Krones Ag Anlage zum Behandeln von Behältern, sowie Verfahren zum Verpacken von gefüllten Behältern
FR3070376B1 (fr) * 2017-08-30 2021-04-16 C E R M E X Constructions Etudes Et Rech De Materiels Pour Lemballage Dexpedition Fonctionnement d'un dispositif de retraction d'une fardeleuse automatique
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DE102021103837A1 (de) 2021-02-18 2022-08-18 Krones Aktiengesellschaft Schrumpfvorrichtung und Verfahren zum Optimieren des Energieaustrags einer Schrumpfvorrichtung
DE102021108138A1 (de) 2021-03-31 2022-10-06 Krones Aktiengesellschaft Verfahren zum Überführen einer Schrumpfvorrichtung in einen StandBy-Modus und Schrumpfvorrichtung
IT202100009092A1 (it) * 2021-04-12 2022-10-12 Koerber Tissue S P A Metodo e macchina per il confezionamento di prodotti di carta tissue

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Also Published As

Publication number Publication date
EP2547590B1 (fr) 2016-03-30
DE102010011640B4 (de) 2020-03-12
US20130000256A1 (en) 2013-01-03
WO2011113506A1 (fr) 2011-09-22
US9926091B2 (en) 2018-03-27
BR112012021983A2 (pt) 2018-01-16
PL2547590T3 (pl) 2016-10-31
DE102010011640A1 (de) 2011-11-17
ES2568526T3 (es) 2016-04-29

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