DE102013217202A1 - Device with dockable printing modules - Google Patents

Abstract

Apparatus and a corresponding method for printing on containers, which are transported along a treatment path, wherein the device along the treatment path arranged and formed as exchangeable units pressure modules comprises, characterized in that each pressure module comprises at least one connecting element having a releasable, self-centering connection with can enter a frame of the device and / or an adjacent printing module, so that adjacent printing modules can be connected to each other directly or indirectly via the frame.

Description

The present invention relates to a device for printing on containers with a series of dockable printing modules.

State of the art

The modular design of container treatment machines is already known. For example, the EP 1 754 663 A1 a treatment machine for articles, such as bottles, wherein functional stations, such as labeling units or units for aligning the containers or control devices are designed as interchangeable modules that can be attached to the machine via standard interfaces and can be mounted at different positions of the labeling machine.

Furthermore, the shows DE 10 2008 049 241 A1 a device for printing on containers, wherein the containers are guided past several printing stations or printheads and the entire device is modular, ie consists of several modules. Each of these modules is associated with a transport element, so that juxtaposed modules already form part of the transport route. However, this modular design proves to be technically very complex and requires high conversion times, if modules must be replaced.

task

Starting from the prior art, it is therefore the object of the present invention to provide a device for printing on containers, such as bottles, which is as simple as possible to convert.

solution

This object is achieved by the apparatus for printing containers according to claim 1 and the method according to claim 9. Advantageous developments of the invention are covered in the subclaims.

According to the invention, the device for printing on containers, which are transported along a treatment path, along the treatment path can be arranged and formed as exchangeable units pressure modules and is characterized in that each pressure module comprises at least one connecting element, which is a detachable, self-centering connection with a frame of the device and / or can enter into a neighboring printing module, so that adjacent printing modules can be connected to one another directly or indirectly via the frame. Due to the self-centering attachment of the printing modules to the frame or directly to adjacent printing modules, an additional adjustment of a newly installed printing module can be avoided, which is why the changeover times can be significantly reduced.

In one embodiment, the connecting element of a printing module further comprises connections for power supply and / or control electronics and / or lines. Thus, the conversion effort is further reduced.

In one embodiment, the connection element of a pressure module comprises connections for compressed air and / or ink lines. Thus, the conversion effort is further reduced.

Furthermore, a connection can be provided in the connection element for a cleaning medium. The cleaning medium is intended to flush in predetermined, in particular regular, cycles, the ink lines and / or the printheads of a printing module.

Alternatively, the supply of ink and / or detergent can also take place independently of the connecting elements, namely via introduction from above into the printing module via a rotary distributor assigned to each module.

In particular, it is possible that at least two pressure modules, in particular all, are also connected to one another in terms of drive technology, namely by a gear which is guided within a tube connecting the two modules.

Furthermore, each printing module can comprise two connecting elements and be connected to two printing modules directly adjacent to this printing module. Optionally, in this embodiment, the frame may be omitted and, further, the attachment of the printing modules together permits the replacement of entire module groups in a contiguous manner.

In one embodiment, the device is characterized in that a conveyor is arranged at least partially parallel to the treatment path, which can transport printed container, wherein the conveyor at least along a part of the treatment path on which the printing modules are arranged, and container from the printing modules can carry away. By means of this conveyor, the transport of the printed containers can be carried out in a variable manner, preferably arranged along the entire treatment path to the printing modules.

The device may be characterized in that the printing modules are arranged without gaps. Thus, it can be achieved that the printing of the container is completed as quickly as possible. It would also be conceivable to provide an intermediate conveyor between two modules.

In one embodiment, it is provided that each printing module is assigned a transport device with which the printing module can be moved, wherein the connecting element is provided on the transport device and / or the printing module. Thus, a further facilitation in Umrüstprozessen be achieved because the printing modules do not need to be transported by hand but the corresponding transport device can be used.

According to a further embodiment, the device is characterized in that the printing modules are arranged along a rail and at least one motor is provided, which is suitable for moving the printing modules along the rail. If one of the printing modules is removed, the other printing modules can be moved along the rail, for example, so that they are arranged next to each other without gap. Also, for removal or installation of a printing module, the remaining printing modules can be moved away from the intended position of the printing module to be installed or removed in order to facilitate retooling.

The printing modules can be set up in zigzag to obtain treatment time on a printing module. Thus, treatment angles of more than 270 ° are given up to 300 °. A possible rail could follow this zigzag pattern.

Furthermore, it can be provided that the detachable connections are designed as quick-change systems. Thus, an even faster conversion is achieved.

On the fasteners may be provided a system for fine adjustment, the centerings should not be sufficient for a necessary accuracy. In particular, a fine adjustment in at least one, preferably two, more preferably three linear axes is possible.

If a zigzag arrangement of the modules is selected, the above mentioned conveyor can only be connected to every other module. In addition, a second conveyor may be provided which adjoins the modules not connected to the first conveyor.

Within the modules, brackets may be provided which accommodate slaves to which the containers are attached during transport through all printing modules for transport.

In particular, a module is designed as a rotary in which container and possibly the associated slaves are transported continuously along a circular section.

In particular, a plurality of container or slave shots are arranged at equidistant intervals on the circumference of the rotary traveler.

Furthermore, it is conceivable that at least one (also running) printhead for printing the container is available per shot. In particular, the print head is arranged radially within the recordings, that is, closer to a rotation axis of a print module.

The axis of rotation of the printing module is oriented in particular vertically, the extension of her thus cuts the center of the earth.

The printhead is preferably a printhead operating on the inkjet principle. The direction in which ink drops emerge from the print head is in particular radially outward.

In the frame, a plurality of lines for ink supply of the individual printing modules can be arranged. In particular, inks of different colors are pumped to the modules in the various lines.

By using, for example, these devices, a method of equipping a device for printing containers transported along a processing line can be realized, the method comprising arranging at least one printing module formed as an exchangeable unit along the processing line and being characterized in that after arranging a detachable, self-centering connection is made between a connecting element of the printing module and a frame of the device and / or a detachable, self-centering connection with an adjacent printing module, so that adjacent printing modules are connected to each other directly or indirectly via the frame. This method allows a flexible printing of containers with only short changeover times compared to the prior art. The self-centering connection reduces or eliminates the need for additional fine adjustment work.

In one embodiment, the method is characterized in that the detachable Connection is made at least between two connecting elements of the printing module and the adjacent connecting elements of two directly adjacent printing modules. Due to the direct connection of the printing modules with one another, it is possible to dispense with the intended frame and furthermore it is ensured that the printing modules are arranged in the correct relation to each other.

Furthermore, it can be provided that prior to arranging the printing module, a motor moves the printing modules arranged on a rail in such a way that a gap is formed in which the printing module is subsequently arranged. The movable formation of the print modules along a rail allows for the provision of additional space by driving away remaining print modules when a print module is to be installed or replaced.

In a further embodiment, the method is characterized in that a conveyor arranged at least partially in parallel to the treatment section removes printed containers from a part of the treatment section in which the printing modules are arranged. This additional conveyor allows a flexible removal of the container after leaving the last printing module.

Furthermore, it can be provided that the production of the detachable connection further comprises the connection of existing in the connecting element terminals for power supply and / or control electronics and / or lines to an external power supply and / or an external control unit and / or external media storage container. Thus, the necessary connection work for the printing module can be performed centrally, which significantly reduces the changeover times or replacement times for a printing module.

Brief description of the figures

1a and 1b Schematic representations of a device according to the invention according to two embodiments.

2 Schematic representations of two printing modules according to one embodiment.

3 Schematic representation of another embodiment of the device according to the invention.

4a + b Schematic representation of various printing module arrangements according to one embodiment.

5 Schematic representation of another embodiment of the device according to the invention.

Detailed description

1a shows a device according to the invention 100 , In this embodiment, the device comprises a plurality of printing modules 101 - 106 , These printing modules can be conveyed via a conveyor 160 container 161 be handed over. The printing modules 101 - 106 can be designed so that they transport the container according to the indicated arrow directions on a meandering treatment path away and print it while. Subsequently, the printed containers, for example via the conveyor 150 , be transported away. The printing modules of the device 100 are according to this embodiment via connecting elements 121 and 122 which are provided on each printing module connected to each other. The connecting elements are preferably designed so that they can produce a self-centering connection between the pressure modules, which, however, can also be released again. A corresponding self-centering connection can be realized, for example, via a cone and a corresponding conical bore. Other realizations are possible. Preferably, however, the self-centering connections or the connecting elements are designed so that their assembly is as simple as possible, so that any changeover times when replacing a pressure module from the device 100 can be reduced. The provided fasteners, it is possible, even fewer or more pressure modules 101 - 106 at the device 100 provided. The device may include, for example, 2, 5, 10 or 20 printing modules or any number of printing modules therebetween. For each printing module, an ink of a certain color is preferably applied to the container so that multi-color printing can be achieved when several modules pass through. The last module of a device may also be a pure UV module in which is not printed, but the previously applied ink is cured.

Preferably, the printing modules 101 - 106 arranged directly adjacent to each other, so that by means of the connecting elements a direct or direct connection between the individual printing modules can be created. This ensures that the container transported through the device 100 printed as reliably as the print modules 101 - 106 to each other already correctly aligned by the self-centering connection, so that the printing of a container in the different printing modules leads to correctly aligned single print images.

The training of the printing modules shown here 101 - 106 such that they can transport a container in a treatment section according to the illustrated arrow direction, so is not mandatory. It can also be provided that the conveyor 160 over the entire range of the device 100 extends. He can, for example, as in 1a indicated on the left in the transport direction of the printing modules 101 - 106 be provided. To fully print the containers along the device 100 to ensure the containers are 161 then on the conveyor 160 preferably via turntable or in the neck handling method, for example, with appropriate brackets or thorns, which allow rotation of the container (possibly including a part of the slave), transported, so that a Rundumbedrucken the container can be guaranteed. It can also be beneficial if the conveyor 160 the container to separate transport organs, such as rotating stars passes, which lead the containers to the printing modules.

The treatment angle shown here would be about 180 °. However, preference is given to a (not shown) list of modules in zigzag. Zig-zag means that a connection of the respective modules, viewed in the transporting direction, in the plan view results in a zigzag line.

1b shows an alternative device according to the invention 100 , In this case, the print modules are 101 - 106 not directly connected to each other via the connecting elements, but the connecting elements 111 . 121 and 131 be by means of an additional, for the device 100 framework 120 connected. In any case, this compound is provided as a releasable self-centering connection. Again, it is provided that by the releasable self-centering connection of the connecting elements 111 . 121 and 131 with the frame 120 already a correct orientation of the printing modules 101 - 106 takes place to each other, so that the printing of passing containers can be performed with high precision. Also in this embodiment, it is possible to more or less than the illustrated number of printing modules 101 - 106 in the device 100 provided. This can be advantageous if the frame 120 over a certain maximum length has provided along the corresponding docking sites for the connecting elements of the printing modules, so that, for example, 5, 10, 15 or 20 printing modules in the frame 120 can be attached. But it can also be provided that the frame 120 from several modules 120 . 121 can be assembled, in turn, via fasteners 122 and 123 can be connected to each other. These connecting elements are also preferably provided such that the assembled frame ensures correct alignment of the printing modules 101 - 106 along the entire length of a composite frame 120 allows. Advantageously, this is the connection of the individual frame parts 120 and 121 also a self-centering connection. Furthermore, a not shown additional direct connection of the modules 101 - 106 be provided with each other.

2 shows a possible realization of the printing modules 201 and 202 for example, in 1a are shown. In this embodiment, the printing modules are designed to be accessible via individual turntables 213 and 214 respectively. 223 and 224 feature. These are also associated with appropriate brackets that can fix the container, for example, the bottleneck. The actual printing units are the elements shown here 215 and 216 respectively. 225 and 226 , You can provide individual containers with certain print images. Subsequently, the containers can be transferred to another printing module or a conveyor.

The printing modules shown here 201 and 202 have complementary fasteners 211 and 212 respectively. 221 and 222 , These are provided in the form of a cone and a corresponding conical bore, so that when fitting the cone 221 into the cone hole 212 a self-centering connection between the printing modules 201 and 202 will be produced. To the self-centering connection with regard to the alignment of the printing modules 201 and 202 To further improve each other, it can be provided that perpendicular to the plane but in a straight connection with the conical bore 212 or the cone 221 further corresponding connecting elements along the extension of a printing module 201 or 202 are provided, which can be fitted in corresponding complementary connecting elements. This ensures that there are no unwanted rotations of the printing modules 201 and 202 to each other, which could lead to considerable misalignments especially when connecting a variety of pressure modules. To make the retrofitting safer, can also be provided that the corresponding fasteners 211 and 212 respectively. 221 and 222 as shown here on the opposite sides of the printing module, are designed so that they can be fitted only in one orientation in another printing module. Thus, incorrect assembly due to a rotated by 180 ° pressure module can not occur because the correspondingly provided connecting elements can not then be fitted into the existing connection elements of the other printing modules.

In principle, every printing module 201 and 202 with two more directly adjacent Connected to print modules. This is the print module 202 over the connecting element 222 with a (dashed line) pressure module 203 connected. This is especially true only if the print module 202 not the first or last printing module of the 1a is shown row.

Is, as in 1b , a frame provided so is a connection of the printing modules 201 and 202 in a direct manner, ie via directly interconnected fasteners 212 and 221 not necessarily. However, it is preferred if for attachment to the frame 120 , as in 1b illustrated, at least two connecting elements per printing module are provided so that the self-centering connection ensures the correct orientation of the print module. As an attachment of the print modules to the frame, as in 1b shown, only one side, the print modules can not be positioned incorrectly to each other (for example, rotated by 180 ° from each other), so that a corresponding arrangement of the connecting elements to avoid such misalignments can be omitted. It would also be conceivable to use the frame exclusively in the installation and alignment of the modules to each other and then remove it from the device. In such an embodiment, the frame then takes on a supporting and fixing effect during the conversion.

Furthermore, in 2 an embodiment of the printing modules shown, for conveying the printing modules 201 and 202 a wagon 220 provides. This can be connected via a detachable connection with the pressure module 201 , as shown here, and allows easy transport of the printing module 201 , To save space and costs, it can be provided that the transport device 220 for all printing modules 201 . 202 . 203 etc. can be used. Alternatively, it can also be provided that each printing module 201 - 203 a corresponding transport device 220 is permanently assigned (not shown here), ie that they can not be separated from the print module. The transport device 220 can in this case supportive of the self-centering connections ensure alignment and correct positioning of the printing modules to each other, for example by having a certain shape.

Also not shown is an embodiment in which the centering and / or connecting elements of two modules in relative movement of two modules to each other exclusively in a horizontal plane with each other. Related to 2 , would have to do this the elements 212 and 221 be placed at the same distance (with the module not raised) to the ground and point towards each other. In this way could be dispensed with a relatively high lifting a module for connection with another.

In general, it is also conceivable, all modules should be stored on the roles of connecting one or more modules on roles to settle all modules together after the connection.

3 shows a further embodiment of the device according to the invention. In this embodiment, the printing modules are 301 - 305 directly via corresponding connecting elements (as in 1a shown) connected to each other. In addition, they are about connections 353 with a rail 351 connected. As with respect to 1a and 1b described, it is provided that the printing modules are always arranged completely. However, this requires, in the case where a printing module is to be removed, for example, from the central region of the resulting chain, as here the printing module 304 in that the remaining printing modules must be rearranged so that a complete arrangement is created. It is provided that the connection 353 over the rail 351 and a correspondingly provided engine 352 a shift of the individual printing modules 301 - 305 can effect along the arrow directions shown. In order to avoid any unintentional misalignment of the printing modules 301 - 305 to effect each other, it can be provided that the connections of the printing modules 301 - 303 to each other, which, as shown here, should be pushed together to the left, while the displacement remains, so that the self-centering effect of the connecting elements with each other possible misalignments due to the displacement along the rail 351 can counteract.

In principle, the provision of a corresponding rail 351 with a motor 352 and the connections 353 the advantage that when removing a print module, such as the print module 304 , From the chain of printing modules on the one hand, the printing modules along the arrow directions shown by this print module to be taken out 304 can be removed, making corresponding alterations much easier (this also applies to the installation). At the same time, after removing the print module 304 the resulting gap can be closed again, for example by the pressure module 305 to the printing modules 301 - 303 or the group of printing modules 301 - 303 to the printing module 305 or both groups can be approximated. Preferably, however, it is provided that the first printing module in the transport direction of the container and the printing modules connected directly to it are not moved, but for closing a gap always the last printing modules in the transport direction to the first in the transport direction Print modules are introduced. So the starting point of the device remains 300 always the same, whereby the corresponding feed units do not need to be modified when removing a printing module. According to the embodiment according to 1b The rail can also be attached to the frame or integrated into it.

4a and b show another embodiment of the present invention. In this embodiment, the printing modules of the device 400 (in 4a ) a promoter 150 assigned. This is suitable containers from the printing modules of the device 400 to be transported along its entire length. Then he can, for example, a rotating star 411 to hand over. The conveyor 150 Therefore, for example, has a variable tap of the container, for example via corresponding brackets, the container of different pressure modules of the device 400 can dissipate. In the in 4a illustrated embodiment, the device comprises 400 only four interconnected print modules. In this case, these printing modules are arranged so that the fourth printing module 104 with the conveyor 150 coincides in the way that the promoter 150 one in the printing module 104 can accept a printed bottle or a container.

4b shows another device 400 ' consisting of pressure modules, which are interconnected. Opposite the in 4a The device shown comprises this device 400 ' however, four more print modules. As with respect to 3 mentioned, it is advantageous if the starting point of the device 400 respectively. 400 ' always remains the same to the transfer facilities, the incoming containers of the device 400 passed to leave unchanged, even if the number of printing modules in the device 400 respectively. 400 ' is changed. Therefore, the additional print modules are to the right of the print module 104 , which is the final printing module of the device 400 in 4a forms, arranged. The device 400 ' therefore extends over a larger part of the conveyor 150 , The last printing module 108 accordingly has a transfer point with the conveyor 150 together, the much further to the right of the transfer point of the printing module 104 lies. Nevertheless, the sponsor 150 able to container out of this pressure module 108 evacuate. The last module can also be a curing module without printing function.

By providing a corresponding conveyor which extends over a certain part of the device 400 respectively. 400 ' extends, a flexible transfer of containers from different printing modules or a different number of printing modules can be ensured. It is advantageous if the conveyor 150 is arranged so that it can remove containers from any number of printing modules, as long as this number is greater than or equal to the minimum number of printing modules. Is the device 400 For example, in such a way that it can provide containers with at least one black and one white printed image, this device must comprise at least two different printing modules. In this case, the conveyor would preferably start at the second printing module or be designed such that it can already pick off a container from this second printing module. It is equally advantageous if the conveyor 150 is designed so that it can remove containers from the last printing module of a chain of printing modules of maximum length. For example, it can be provided that the device 400 respectively. 400 ' can comprise or comprises a maximum of eight printing modules. In this case, the promoter would be 150 then designed so that it also from the last printing module 108 as it is for example in 4b is shown, can transport containers. For example, it is sufficient if, at a Abgriffpositionsänderung a cam for operating a on the conveyor 150 arranged clip is moved to the module to be tapped.

This ensures that from a device 400 with any number of printing modules between the minimum and the maximum number (including the minimum and maximum value) can be transported container. As a result, retooling be further simplified because the proposed transport facilities can remain unchanged. The feeders can remain unchanged since the first pressure module 101 always has the same position in this embodiment, ie, the transfer point of the feed conveyor, the container of the device 400 respectively. 400 ' promote, does not change. The takeover point of the containers on the conveyor 150 Although variable, but is the sponsor 150 As described above, it is designed so that it can remove containers from each printing module or from an arbitrarily long chain of printing modules between the minimum and the maximum length, so that regardless of how many printing modules the device 400 respectively. 400 ' includes, a removal of the container is always possible, as long as the number of printing modules not smaller than the minimum number of printing modules and not greater than the maximum number of printing modules for the device 400 is.

5 shows a further embodiment of the device according to the invention. In this embodiment, the printing modules are 502 . 503 and 504 not linearly connected to each other, ie they do not form a chain, such as in 1 but they are around a carousel 501 arranged. The carousel 501 here taking on the task of a distributor transports containers in the indicated arrow direction and can it to the pressure modules 502 . 503 and 504 to hand over. Preferably, the printing modules 502 - 504 via corresponding connecting elements 510 with the distributor 501 connected. In addition, however, any printing module, such as the printing module 503 , more than one or two other fasteners 511 - 514 include, so to this pressure module 503 even more printing modules or satellites can be arranged to record the container and can print. In this way, a flexible and individual device for printing on containers can be provided. A corresponding satellite construction can also be applied to the embodiment 1 apply. It would also be possible here for a container to be finished with a multicolor print on a print module and thus only pass through one satellite. The other satellites are used to hold containers that have not yet passed through a satellite. For example, the first container will only be satellite 502 supplied, the second satellite 503 , the third satellite 504 , the fourth again satellite 502 etc. The carousel 501 then serves as a distributor, so to speak.

For all of the embodiments of the device described above, it may additionally be provided that the connecting elements comprise connections for power supply, control electronics or other lines in which, for example, printing ink can be transported. This can be achieved that the connection of the printing modules is much easier and no time consuming adjustment requires more.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1754663 A1 [0002]
• DE 102008049241 A1 [0003]

Claims (12)

Contraption ( 100 ) for printing on containers ( 161 ), which are transported along a treatment route, wherein the device ( 100 ) can be arranged along the treatment path and formed as exchangeable units printing modules ( 101 - 106 ), characterized in that each printing module ( 101 - 106 ) comprises at least one connecting element ( 121 . 122 . 111 . 121 . 131 ) which provides a detachable, self-centering connection to a frame ( 120 ) of the device and / or an adjacent printing module ( 101 - 106 ), so that adjacent print modules ( 101 - 106 ) directly or indirectly through the framework ( 120 ) can be connected to each other. Apparatus according to claim 1, characterized in that the connecting element of a printing module further comprises connections for power supply and / or control electronics and / or lines. Apparatus according to claim 1 or 2, characterized in that each pressure module ( 201 . 202 ) two connecting elements ( 211 . 212 . 221 . 222 ) and can be connected to two, this printing module directly adjacent printing modules. Device according to one of claims 1 to 3, characterized in that a conveyor ( 150 ) is arranged at least partially parallel to the treatment section, which can transport printed container, wherein the conveyor at least along a part of the treatment path on which the pressure modules ( 101 - 108 ) are arranged, and container from the printing modules ( 101 - 108 ) can carry away. Device according to one of claims 1 to 4, characterized in that the pressure modules ( 101 - 108 ) are arranged without gaps. Device according to one of claims 1 to 5, characterized in that each printing module ( 201 . 202 ) a transport device ( 220 ), with which the print module ( 201 . 202 ) can be moved, wherein the connecting element to the transport device ( 220 ) and / or the print module ( 201 . 202 ) is provided. Device according to one of claims 1 to 6, characterized in that the pressure modules ( 301 - 305 ) along a rail ( 351 ) and at least one motor ( 352 ) is provided, which is suitable, the printing modules ( 301 - 305 ) along the rail ( 351 ) to move. Device according to one of claims 1 to 7, characterized in that the detachable connections are designed as quick-change systems. Device according to one of claims 1 to 8, characterized in that each printing module is designed as a rotary machine with a plurality of receptacles for containers or their slaves on which container, possibly associated with them slaves, are transportable and at least temporarily a recording at least partially associated with circulating printhead. Method for equipping a device ( 100 ) for printing on containers transported along a treatment line, the method comprising arranging at least one printing module (FIG. 101 - 106 ) along the treatment path and characterized in that, after placement, a releasable, self-centering connection between a connecting element ( 111 . 121 . 122 . 131 ) of the print module ( 101 - 106 ) and a frame ( 120 ) of the device and / or a detachable, self-centering connection with an adjacent printing module ( 101 - 106 ), so that neighboring printing modules can be directly or indirectly conveyed over the frame ( 120 ) are interconnected. A method according to claim 10, characterized in that the releasable connection is made at least between two connecting elements of the printing module and the adjacent connecting elements of two directly adjacent printing modules. A method according to claim 10 or 11, characterized in that prior to arranging the printing module, a motor ( 352 ) on a rail ( 351 ) arranged pressure modules ( 301 - 305 ) is moved such that a gap is formed in which the printing module ( 304 ) is subsequently arranged. Method according to one of Claims 10 to 12, characterized in that a conveyor, which is arranged at least partially parallel to the treatment path, removes printed containers from a part of the treatment path in which the printing modules are arranged. Method according to one of claims 10 to 13, characterized in that the production of the releasable connection further comprises connecting existing in the connecting element terminals for power and / or control electronics and / or lines to an external power supply and / or an external control unit and / or includes external media storage containers.

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