EP2578499B1 - System for operating a packaging plant - Google Patents

Description

The invention relates to a system for operating a packaging installation for products, in particular tobacco articles, according to the preamble of claim 1.

In times of increasing energy prices, buyers of packaging equipment, packaging machines and individual units for such machines require that these organs can be operated in an energy-saving manner. It has therefore long been taken to ensure that the organs generally consume as little energy as possible during operation. Furthermore, it is common to dimension organs so that they are normally operated at a utilization level in which the organ has a low energy consumption.

Out WO 2011/113506 A1 For example, a method for operating or controlling a shrink tunnel is known in which it is proposed to put individual organs in a standby mode in the event of malfunctions in order to save energy.

On this basis, the invention has the object to improve systems of the type mentioned in the direction of further energy savings. The term energy saving refers to all measures that reduce the amount of energy consumed.

To solve this problem, an inventive system has the features of claim 1.

Energy efficiency is generally understood as the efficiency of the use of energy, ie the ratio of benefits to energy expenditure. Related to one Under energy efficiency, packaging equipment is understood to be the specific energy consumption, ie the energy required for the packaging of a product.

Under the operating mode is understood in the context of this application, the state of the organs in which they are in regular or normal operation of the packaging system. In this case, not only a single mode of operation necessarily exists, but several modes of operation may exist, for example for different products to be packed or handled in the system.

Under a power-saving mode is understood in the context of this application, a state in which the organs consume less energy than in the respective operating mode. This can be done by (complete) shutdown of the organs or by partially reducing the energy consumption. In practice, each organ may have different energy saving modes, with different respective energy consumption, until complete shutdown as the energy saving mode with the least or no energy consumption.

If different modes of operation exist for the organs - for example, for different products - it may be conceivable that the operating mode for one product corresponds to a power saving mode for another product.

According to a preferred development of the invention it can be provided that programs for controlling the packaging installation and / or their organs are stored in the control unit, the programs being assigned to specific operating states of the packaging installation and / or their organs.

Accordingly, a control unit may be provided which has programs for controlling or regulating the organs with regard to the operating and energy-saving modes or the energy consumption. Furthermore, it is provided that these programs are assigned to specific operating states.

For example, a program for "normal operation" in which all organs are operated in operating mode would be conceivable. If necessary, several programs for the "normal operation" exist, for example, depending on the product to be packaged. Conceivable are programs for certain products, in which organs are partially put into a power-saving mode or even switched off, because they are required in the packaging of the product to a lesser extent or not at all.

In particular, it is conceivable to operate low-temperature heaters in accordance with the product to be packaged.

Furthermore, it is conceivable that the organs are controlled or regulated in accordance with the production speed. It would be conceivable that at low production speed of the packaging system, the heaters are operated at a lower temperature and vice versa.

In particular, it would be conceivable to control or regulate the system in accordance with the operating speed of an operator. In this way, for example, could be saved in the training of operators energy. It could also be considered in this way, the general operating speed of the operator of a plant. It is then conceivable, for example, that certain systems are operated individually according to the operator with higher or lower production speeds in order to keep the specific energy consumption as low as possible.

In practice, great importance is also to be attached to programs which can be used in the event of business interruptions, such as Breaks, malfunctions, during maintenance, after hours, on weekends, in factory holidays etc. are used. Here it is conceivable that, depending on the length of the interruption, various programs are available to reduce the energy consumption of the organs.

• die Programme können direkt (manuell) ausgewählt werden,
• die Programme können automatisch ausgewählt werden.

With regard to the selection of the programs in the control unit, various possibilities are conceivable which can be implemented individually or cumulatively in any combination:

• the programs can be selected directly (manually),
• the programs can be selected automatically.

In the automatic selection is on the one hand a time-controlled selection in question, with the planned changes in the operating state of the institutions can be considered, such as breaks, scheduled maintenance, closing time, shift changes, weekends, plant holidays, etc.

On the other hand, an automatic selection of the programs on the basis of the operating state of the packaging installation and / or its organs is also conceivable.

In particular, for an automatic selection of the programs but also for statistical purposes or for a manual evaluation, it may be useful that the operating conditions and / or service interruptions of the packaging system and / or its organs are detected by the control unit.

• Betriebsmodus der Verpackungsanlage (10) und/oder deren Organe,
• Zeitpunkt,
• Produkt,
• Bediener bzw. Bedienmannschaft.

Furthermore, it is preferably provided that the energy consumption of the packaging installation and / or its organs are detected. Preferably, the detection is dependent on one or more of the following factors:

• Operating mode of the packaging installation (10) and / or its organs,
• Time,
• Product,
• Operator or operating team.

The acquired data can then be stored, for example, in the control unit (27), the machine control or a line computer.

According to a preferred embodiment of the invention, it is provided that the programs stored in the control unit are automatically adjusted on the basis of records of the operating state and / or the energy consumption and / or the service interruptions of the packaging installation and / or one or more organs. In this case, the system "learns" from the recorded data and can automatically optimize the programs from this.

For example, a self-learning system can detect that certain disorders of the organs lead to business interruptions of a certain length. Once sufficient data is available, it can be determined statistically or by probability calculations how long the respective interruption is likely to take, so that the corresponding programs are adapted accordingly by the control unit.

In addition, it is conceivable that new occasions for business interruptions are detected by the control unit and corresponding programs are generated in order to respond to this business interruption.

As an example, one could imagine that for the first time an aggregate of a folding turret fails in a packaging plant for cigarettes, whereby no error has yet been given for this defect Programming exists. The system would detect the newly occurring fault and subsequently register which organs of the system can be stopped or operated with less power due to this fault. Furthermore, the system would register the time until the error was remedied and could then generate a new rule or program which will be called upon re-occurrence of the error. Any future outage appearance would detect the effects and adjust the program if necessary.

It goes without saying that this procedure can be used not only in the event of faults or errors, but also in the case of planned interventions in the operating sequence, such as, for example, brand change, product change, maintenance, etc.

Other peculiarities relate to constructive solutions in the displacement of organs in a power-saving mode.

Fig. 1

eine Draufsicht auf eine Verpackungsanlage in schematischer Darstellung,

Fig. 2

eine schematische Darstellung der Organe der Verpackungsanlage sowie deren Steuerung,

Fig. 3.

eine schematische Darstellung des momentanen Energieverbrauchs der Organe,

Fig. 4

eine schematische Darstellung einer Bedieneinheit,

Fig. 5

eine Verpackungsmaschine der Verpackungsanlage in einer Seitenansicht gemäß Pfeil V in Fig. 1,

Fig. 6

eine Einzelheit der Verpackungsmaschine gemäß Kennzeichnung VI in Fig. 5 in vergrößerter Darstellung,

Fig. 7

eine schematische Darstellung eines Programms, und

Fig. 8

ein Horizontalschnitt durch die Vorrichtung entlang Schnittlinie VIII-VIII in Fig. 6.

A preferred embodiment of the invention will be described below with reference to the drawing. In this show:

Fig. 1

a top view of a packaging system in a schematic representation,

Fig. 2

a schematic representation of the organs of the packaging plant and its control,

Fig. 3.

a schematic representation of the current energy consumption of the organs,

Fig. 4

a schematic representation of a control unit,

Fig. 5

a packaging machine of the packaging system in a side view according to arrow V in Fig. 1 .

Fig. 6

a detail of the packaging machine according to marking VI in Fig. 5 in an enlarged view,

Fig. 7

a schematic representation of a program, and

Fig. 8

a horizontal section through the device along section line VIII-VIII in Fig. 6 ,

The invention is explained below by way of example with reference to a packaging installation 10 for tobacco products. In the exemplary embodiment shown, the packaging installation 10 includes an entire packaging line from the production of the cigarettes to the packaging of bundle packs.

It goes without saying that a packaging installation 10 does not necessarily have to be an entire packaging line. A packaging system 10 may also include only a single packaging machine or a single packaging unit.

Furthermore, it is understood that the invention can be used not only in connection with the packaging of tobacco articles, such as cigarettes, cigarillos or the like, but also in other products, such as hygiene products.

The packaging system 10 according to Fig. 1 has a number of packaging machines that pass through the product or intermediate to be manufactured during processing within the packaging plant. Each packaging machine in turn has a number of aggregates, which in turn can be controlled or regulated. In this respect, in the following textual simplification will always be the organs of the packaging system 10. This term includes all controllable or controllable components of the packaging installation 10, ie ultimately the packaging machines, their aggregates, sub-aggregates, etc.

• Maker 11,
• Filteransetzer 12,
• Zigarettenspeicher 13,
• Hinge-Lid-Packer 14,
• Zuschnittmagazin 15,
• Packungsspeicher 16,
• Cellophaniermaschine 17,
• Stangenpacker 18,
• Kartonpacker 19.

In the in Fig. 1 In the exemplary embodiment of a packaging installation 10, the following organs follow one another within the packaging line or the packaging process:

• Maker 11,
• Filter inserter 12,
• Cigarette storage 13,
• Hinge-lid packer 14,
• Blank magazine 15,
• Packet memory 16,
• Cellophaning machine 17,
• Rod packer 18,
• Carton packer 19.

On the side next to the packaging line, a reel storage 20 is arranged, with packaging materials for the individual organs of the packaging installation 10. By means of a reel supply 21, the packaging materials can be supplied to the individual organs.

The organs of the packaging system 10 are each associated with machine controls 22 for controlling the respective machine or the respective organ. These are connected via control lines 23 to a host computer 24. The main computer 24 in turn can be connected via lines 25, 26 to the Internet and / or the intranet.

At a production location, a plurality of such packaging systems 10 can be operated, which can optionally be controlled together via the lines 25 to the intranet in the network. It is also conceivable to couple a plurality of packaging installations 10 via the intranet and / or the Internet in order to be able to control, regulate, control or evaluate packaging installations 10 at one or more central locations from one or more central locations.

To increase the energy efficiency of the packaging system 10 and its organs, a control unit 27 is provided. The control unit 27 can be realized as a separate device and be connected to the packaging installation 10 via the lines 25, 26 or arranged in the main computer 24. Various programs for operating the packaging installation 10 are preferably stored in the control unit 27. The programs provide different configurations for the organs of the packaging installation 10, depending on the purpose of use.

An example of a first program in the event of a business interruption is in Fig. 7 shown. In the left column of the diagram, individual organs of the packaging installation 10 are shown graphically, in addition, there is in each case the configuration depending on the length of the business interruption. In the present case, it is provided that the temperature of a shrinkage heater 28 is lowered at short interruptions to a temperature of 50 ° C, with a longer interruption of the operation, the temperature is lowered to 30 ° C and finally at long Interruption, the shrink heater 28 is issued. Preferably, when lowering the temperature, the length of the expected service interruption is taken into account. In particular, the temperature should be lowered only to the extent that it can be raised again to the operating temperature until the expected end of the interruption, so that the business interruption is not prolonged by the lowering of the temperature.

Corresponding configurations are provided for a hot glue reservoir 29, a monitor 30, a machine lighting 31, an emergency stop switch 32, a servo motor 33, a vacuum blower 34, a camera control 35 and a laser print 36.

In addition, in a program, of course, the configuration for the "normal" operation of the organs be deposited. The next to the icons in Fig. 7 executed configurations of the organs then stand for the different energy-saving modes of the same.

In the present case, the control unit 27 is set up to set up, display and select the programs. As already mentioned, this is possible because the organs are connected to the respective machine controls 22 and these are connected to the control unit 27. Fig. 2 shows as a further organs of the packaging system 10 nor a cabinet 37 and the Cellophanier 17th

• manuell
• automatisch und zeitgesteuert
• automatisch nach Maßgabe des Betriebszustands.

The selection of programs can be as in Fig. 2 indicated in three different ways, namely

• manually
• automatic and timed
• automatically according to the operating status.

These three methods are in Fig. 2 indicated by corresponding symbols in the control unit 27.

A simple case is the manual selection of programs. By an operator, the individual programs can be selected on a control unit 27: This can, for example, depending on the operating state of Packaging system 10, depending on the product to be manufactured or in dependence on other boundary conditions.

Upon the occurrence of a fault that leads to an interruption in operation, the operator at the control unit 27 can select a corresponding program, which then switches one or more or all organs into a power-saving mode. This energy saving mode can be constant until the program finishes or as in Fig. 7 be shown time-dependent.

The time-controlled programming of the control unit 27, however, allows automatic consideration of predetermined interruptions in operation, such as in the case of breaks, shift changes, at closing time, on weekends, company holidays or the like. Also for scheduled maintenance work such time-controlled programs can be used.

In principle, during interruptions in operation, the time required to bring the units back to operating condition should be taken into account. This is especially true for the time required to heat sealing members, glue lines, glue nozzles, dry wheels and the like.

The highest degree of automation offers the selection of programs in accordance with the operating state of the packaging system 10. Due to the networking of the organs of the packaging system 10 information about the operating condition of the packaging system 10 and the units contained therein via the machine controls 22 to the control unit 27 passed. Not only data about the current energy consumption of the organs, but also information about disorders of individual organs to the control unit 27 can be transmitted. With appropriate programming, the control unit 27 is now able to automatically select the appropriate for the respective operating state of the packaging system 10 programs.

For example, it is conceivable that there is a fault in the area of the cellophaning machine 17, which requires a standstill of this unit and possibly of the packaging installation 10. The message of the error in the area of the cellophaning machine 17 is evaluated by the control unit 27 and a corresponding program started, for example, the vacuum fan 34 to supply the cellophaning machine 17 turns off with suction. This can be like in Fig. 7 shown as an example also take place only after a certain length of the fault, so that short-term interruptions do not lead to a shutdown.

If other organs are affected by business interruptions or disruptions in the region of an organ, corresponding energy-saving modes can also be stored for these organs in the control unit 27.

Preferably, the control unit 27 is also designed as a self-learning system. By monitoring the operating conditions of the organs of the packaging installation 10, the control unit 27 can draw conclusions as to how much time is needed to eliminate certain disturbances or interruptions in operation. By these measurements, the control unit 27 can then adjust and improve the stored programs. It is also conceivable that the programs are programmed depending on the product to be packaged or manufactured, for example, depending on the cigarette brand or the corresponding type of pack.

Furthermore, it is conceivable that a business interruption does not have to lead, or only conditionally, to the fact that the organs not affected by the disturbance or interruption are likewise put into an energy-saving mode or to the same extent. It is also conceivable, for example, that, for example, if the hinge-lid packer 14 is disturbed Fig. 1 the before or after arranged organs of the packaging machine 10, so in this case the maker 11 and the filter applicator 12 and the cellophaning machine 17 are operated at a lower production speed. As a further alternative, it is conceivable that the above-mentioned organs continue to produce initially at normal operating speed until the reservoirs 13 and 16 are filled or emptied and that only then, by appropriate programming, is the speed reduced. All of this can be specified centrally by the control unit 27.

It is also conceivable that the control unit 27 automatically generates programs for newly entering operating states in order to increase energy efficiency. This can be done with the help of the measurement results, error messages and with the help of statistical Calculations take place. Moreover, it is also conceivable to provide such programming in dependence on other factors, for example depending on the product to be packaged, as a function of the performance of the operators, as a function of environmental influences such as temperatures, and the like.

The control unit 27 can further be used to control and display the operation of the packaging equipment 10 with respect to the power consumption of the organs. For this purpose, the control unit according to Fig. 4 have a monitor 38 for displaying such information. It is conceivable that information on the energy consumption of the organs or the entire packaging installation 10 is displayed on the monitor 38.

Fig. 4 shows in this sense, on the one hand, a graph 39 of the energy consumption of the packaging system 10 as a function of time. Furthermore, monitor 38 shows in a further graph 40 the specific energy consumption of the packaging installation 10. It is also conceivable to display this information in relation to individual organs of the packaging installation 10. Furthermore, the control unit 27 has a plurality of buttons 41, and a controller 42 for selecting the information to be displayed or for selecting the programs and / or programming the same.

In principle, it is conceivable that not only the current energy consumption is displayed, but that chronological or statistical evaluations are made, such as comparisons with the previous day, another shift or another packaging installation 10.

The control unit 27 further allows the evaluation of the instantaneous energy consumption of the organs, as in Fig. 3 shown.

For each organ, the current energy consumption is indicated in each case via an arrow 43. Furthermore, a threshold 44 is indicated by a bar. In the present case, the limit value is a level above which the corresponding organ has an above-average energy consumption. Accordingly, the Verpackungsarilage 10 should be operated so that the energy consumption is below the respective limit. It can be seen that, for example, the laser print 36 and the servomotor 33 are operated above the limit value, which may indicate disturbances. In both cases, for example, soiling can lead to more energy being expended than usual. Conversely, such an increase in energy consumption may indicate that certain organs or aggregates are contaminated and need to be overhauled, cleaned or maintained. Of course, the energy consumption does not have to be stated as a percentage, but this can also be done with absolute information.

Furthermore, it is conceivable that the control unit 27 controls the packaging installation 10 in such a way that the lowest possible energy costs are caused. It is conceivable, for example, that the control unit 27 controls the packaging installation 10 such that certain (in particular cyclical) packaging processes take place when the costs for the procurement of the energy are particularly favorable. It would be conceivable, for example, an exploitation of night tariffs or the like. For example, in this way, in particular cyclical processes such as tobacco processing can take place at times when the energy is available at low cost. If the energy comes from regenerative energy sources, the processes can also take place in accordance with expected energy yields from the regenerative energy sources, for example, taking into account or in accordance with weather forecasts.

Another peculiarity may be that the programs provide for the institutions to return to operational mode in good time before the end of the business interruption. For example, timely heating of heating elements, such as e.g. the heat shrink 28, so that at the end of the interruption of the operating mode is present. This can be hard-coded in timed programs, or the control unit 27 learns from events that have already occurred to adjust the programs accordingly.

Another special feature is in Fig. 5, 6 and 8th shown. The illustrations deal with measures to support a power saving mode. It is envisaged that measures will be taken to ensure the continuation of the packaging process after a business interruption or the activation of a power-saving mode.

By way of example, such a measure is explained using the example of the cellophaning machine 17. It is common that the packaging material 45 is guided in this area via deflection rollers 46 in the region of a suction conveyor 47. With the help of the suction conveyor 47 is a blank of the packaging material 45, which is separated by means of a separator 48 from the packaging material 45, held in the transport path of a product to be packaged 49. The product 49 is conveyed through the cut prepared in a vertical plane on the suction conveyor 47 and inserted into a pocket 50 of a sealing turret 51. The suction conveyor 47 is supplied via a vacuum blower 34 with a negative pressure.

In the case of shutdown of the vacuum fan 34 during a prolonged stoppage ( Fig. 7 ) it would inevitably happen that the already isolated blanks fall off the circumference of the suction conveyor 47. As a result, would inevitably be a product 49 unpacked inserted into the sealing turret 51 when starting the device after the end of the business interruption.

To solve this problem, it is provided that when the vacuum blower 34 is switched off, a holding device 52 is automatically activated to secure the position of the packaging material 45 or a single blank on the suction conveyor 47.

The holding device 52 is constructed in such a way that when the vacuum fan 34 is switched off, a mechanical securing of the position of the packaging material 45 takes place automatically.

In the present case, a holding jaw 53 is provided for this purpose, which is pressed by means of a spring 54 against the suction conveyor 47 and thereby pushes the packaging material 45 against the suction conveyor 47. The holding jaw 53 is arranged on a shaft 55, which penetrates a corresponding opening of a housing 56. Within the housing 56, a suction plate 57 is arranged on the shaft 55, against which the spring 54 and the holding jaw 53 presses under support on a wall of the housing 56 against the suction conveyor 47. Furthermore, the housing 56 has a port 58 for connection to the vacuum blower 34. In the present case, the suction conveyor 47 has two suction belts 59, each suction belt 59 is associated with a holding device 52.

The mode of operation of the holding device 52 results from the illustration according to FIG Fig. 8 , The lower illustration in Fig. 8 shows the holding device 52 in the operating state. Via the port 48, a negative pressure in the housing 56 is generated, which causes the suction plate 57 is sucked under bias of the spring 54. This in turn means that the brake pad 53 of the holding device 52 is spaced from the suction conveyor 47. When switching off the vacuum fan 34 due to appropriate programming of the control unit 47 is - like the upper part of the Fig. 8 shows - the brake pad 53 pressed by the spring 54 against the suction conveyor 47.

In other words, this aspect of the invention provides that securing means are switched off or down-regulated in the energy-saving mode in order to ensure continuation of the packaging process after reactivation of the operating state.

In this sense, it is conceivable in principle that packaging materials and / or products are fixed at initiation of energy savings by mechanical holding means as securing means such that after completion of the energy saving mode production can be continued without intervention in the production process is required, in particular by an operator. In question comes such a solution, for example, when transporting or fixing products by means of negative pressure, compressed air or centrifugal force.

In addition, it is possible, for example, to replace electromagnetically operating holding devices as securing means when introducing energy measures by mechanical means. It is conceivable in this sense to replace electronic-magnetic holding devices in electric motors (for example for servo drives) by mechanical (spring-loaded) brakes.

Another solution provides that handling devices are mechanically held when initiating energy-saving measures in parking positions. It is conceivable, for example, the storage of a robot arm in a parking position in which the power supply to the robot arm can be turned off. <B> LIST OF REFERENCES: </ b> 10 packing plant 36 Laser printing 11 Maker 37 switch cabinet 12 tipper 38 monitor 13 cigarette store 39 graphic 14 Hinged-lid Packer 40 graphic 15 blank magazine 41 button 16 pack store 42 regulator 17 Overwrapper 43 arrow 18 rod packer 44 bar 19 Case packer 45 packing material 20 Bobinenlager 46 idler pulley 21 Bobinenversorgung 47 Saugförderer 22 machine control 48 separator 23 control line 49 product 24 host 50 bag 25 management 51 seal revolver 26 management 52 holder 27 control unit 53 holding jaw 28 shrink Heating 54 feather 29 Heißleimvorratsbehälter 55 shaft 30 monitor 56 casing 31 machine lighting 57 suction plate 32 Emergency switch 58 connection 33 servomotor 59 suction belt 34 vacuum blower 35 camera control

Claims (13)

1. System for operating a packaging installation (10) for products, in particular tobacco items, wherein inside a packaging installation (10) several elements of the packaging installation (10), in particular packaging machines or units of the same, follow in succession inside a packaging process, and wherein, to improve the energy efficiency of the packaging installation (10), elements are switched into an energy-saving mode at least partially by means of at least one control unit (27) in at least a temporary manner, in which energy-saving mode the corresponding elements require less energy than in an operating mode, and wherein programs for operating interruptions of the packaging installation (10) and/or the elements thereof are filed in the control unit (27), said programs being selected depending on the anticipated duration of the operating interruption, characterized in that the operating states of the packaging installation (10) and/or the elements thereof are detected by the control unit, and in that the anticipated duration of operating interruptions is determined as a result of the detected data on the basis of statistical calculations or probability calculations
2. System according to Claim 1, characterized in that programs for controlling the packaging installation (10) and/or the elements thereof are filed in the control unit (27), wherein the programs are associated with certain operating states of the packaging installation (10) and/or of the elements thereof.
3. System according to Claim 1 or 2, characterized in that the programs filed in the control unit (27) are selectable at the control unit (27).
4. System according to Claim 1 or to one of the further preceding Claims, characterized in that the programs filed in the control unit (27) are selected automatically in a time-dependent manner.
5. System according to Claim 1 or to one of the further preceding Claims, characterized in that the operating states and/or operating interruptions of the packaging installation (10) and/or of the elements thereof are detected, and in that the programs filed in the control unit (27) are automatically selected according to the detected operating states and/or operating interruptions.
6. System according to Claim 1 or to one of the further preceding Claims, characterized in that the energy consumption of the packaging installation (10) and/or of the elements thereof is/are detected, in particular in dependence on one or more of the following factors:

   - the operating mode of the packaging installation (10) and/or of the elements thereof,

   - the moment,

   - the product,

   - the operators or the operating team,

   and in that the detected data are preferably stored in the control unit (27)
7. System according to Claim 1 or to one of the further preceding Claims, characterized in that the programs filed in the control unit (27) are automatically adapted as a result of recordings of the operating state and/or of the energy consumption and/or of the operating interruptions of the packaging installation (10) and/or of one or several elements.
8. System according to Claim 5 or to one of the further preceding Claims, characterized in that programs for operating interruptions of the packaging installation (10) and/or of the elements thereof are filed in the control unit (27), said programs being selected automatically depending on the duration of the operating interruption and according to the product to be produced.
9. System according to Claim 1 or to one of the further preceding Claims, characterized in that the programs provide operating parameters of the elements, in particular temperature, cycle rate, speed, position, brightness, on/off and the like.
10. System according to Claim 1 or to one of the further preceding Claims, characterized in that the control unit (27) has means for evaluating the detected operating states and/or energy consumptions of the packaging installation (10) and/or of the elements thereof, in particular for determining a specific energy consumption of the packaging installation (10) or of the elements thereof.
11. System according to Claim 1 or to one of the further preceding Claims, characterized in that, when determining the anticipated duration of operating interruptions, the combination of the affected elements is taken into consideration.
12. System according to Claim 1 or to one of the further preceding Claims, characterized in that in particular energy-intensive processes are carried out by the control unit (27) at times during which the energy is available in a cost-efficient manner.
13. System according to Claim 1 or to one of the further preceding Claims, characterized in that packaging materials and/or products and/or elements are held mechanically in the event of operating interruptions or when energy-saving measures are introduced until the end of the operating interruption or of the energy-saving measure.

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