EP2848417A1 - Container handling machine for printing on containers - Google Patents

Abstract

Container treatment machine (1) for printing on containers (2) with a transport device (3) optionally designed as a carousel for transporting the containers (2) in circulating container receptacles (4), with at least one direct print head (5 w, 5 c, 5y, 5 m , 5 K,) for printing with a light-curing printing ink and with a stationary curing device (6) for curing the printing ink on the containers (2) by means of light radiation, optionally UV light radiation, characterized in that the container receptacles (4) each with a Abschirmeinhausung (7) for shielding the light radiation, which has at least one access opening (71) for the curing device (6), and the curing device (6) is formed with a shielding element (62) connected to the access opening (71) of at least one Abschirmeinhausung (7) cooperates such that a direct light leakage is prevented.

Description

The invention relates to a container treatment machine for printing containers with the features of the preamble of claim 1.

Usually, containers for products, such as drinks, toiletries and the like, are provided with a print for identifying the product and / or for a high quality product presentation. The printing can be applied both directly to a container outer surface and / or as additional printing on a label and, for example, have characters, logos, patterns and color gradients. To apply the printing, the containers are usually conveyed by means of a transport device, for example a carousel, using direct printing heads with e.g. light-curing printing inks printed. For multicolor printing several direct print heads can be arranged with printing inks of different colors on the container treatment machine.

The initially liquid printing ink is irradiated on the containers with a stationary on the carousel arranged curing device, for example, with UV light and thereby cured. The container treatment machine may include a plurality of curing devices that cure the printing ink after each printing a color. Alternatively, it is also conceivable that the curing device is arranged in the transport direction for all direct print heads and so the printing inks of all colors are cured simultaneously. Finally, a combination is conceivable in which e.g. After each print head with UV LEDs a so-called pinning (Erstanhärtung) is carried out and then the curing of the entire imprint.

The disadvantage here is that direct light radiation or stray light of the curing reaches the direct print heads and there inadvertently cures the printing ink. This may clog the nozzles of a direct print head and / or compromise the print quality of the direct print.

The object of the present invention is therefore to provide a container treatment machine for printing on containers, in which a clogging of nozzles of the direct print head and / or a reduction in print quality is avoided by unintentionally cured printing ink. Furthermore, the device is used to minimize the health hazard to the operator by UV radiation through shielding and to protect UV-sensitive components inside the machine.

This object is achieved in a container treatment machine for printing on containers according to the preamble of claim 1 with the features of the characterizing part, according to which the container receptacles are each formed with a Abschirmeinhausung for shielding the light radiation having at least one access opening for the curing device and the curing device is formed with a shielding member which cooperates with the access opening of at least one Abschirmeinhausung such that a direct light emission is prevented.

By providing the container receptacles each with a shielding housing having an access opening, the containers can be irradiated through the access opening by the curing device without disturbing the light radiation. In addition, since the container receptacles are each provided with its own Abschirmeinhausung, passes neither direct light radiation nor stray light from the area of a container receptacle to adjacent container receptacles or direct print heads. Furthermore, it is avoided by the Abschirmeinhausung that the light radiation passes from the curing device through a transparent container into the interior of the transport device and is scattered from there to the direct print heads.

In addition, the access opening opposite the shielding element is formed on the curing device, so that the access opening is closed when passing the curing device against light leakage. This prevents direct light from the curing device or stray light from exiting through the access opening and from there to the direct print head.

Accordingly, the container during irradiation in the region of the curing device is located in a substantially quasi-closed chamber formed in this region and formed there by the shielding housing and by the shielding element. This at least largely prevents light radiation from the curing device from reaching the direct print head, either directly or via scattered light paths, where it accidentally cures the printing ink or clogs the nozzles.

The container treatment machine for printing on containers can be arranged in a beverage processing plant. The container treatment machine may be arranged downstream of a filling unit for filling a product into the containers. The container treatment machine can also be subordinated directly to a stretch blow molding machine for PET bottles. The containers may be intended to contain drinks, toiletries, pastes, chemical, biological and / or pharmaceutical products. The containers may be plastic bottles, glass bottles, cans and / or tubes. Plastic containers may in particular be PET, HD-PE or PP containers or bottles.

The transport device may be formed with the container receptacles and at least one direct print head to continuously print a container stream or even cyclically. The transport device may be a carousel, on the circumference of the container receptacles are arranged. The container receptacles may each comprise an optionally driven with a direct drive turntable and a centering device. The turntable and the centering device can be designed to clamp the container on the container bottom or mouth. The carousel may be associated with an inlet and / or an outlet star to the containers to the container receptacles and / or dissipate. A drive in the container treatment machine may be provided to rotate the carousel about a vertical carousel axis. By "vertical" is meant here the direction whose vector is directed to the center of the earth. Furthermore, the carousel may have a carousel plane which is perpendicular to the carousel axis.

The direct print heads may be configured to print by an ink jet printing process. "Ink jet printing process" can mean here that the printing ink can be applied to the containers by means of a multiplicity of nozzles. The nozzles may each comprise a thermal or piezoelectric element. Furthermore, the nozzles can be designed to deliver pressure droplets in a printing direction to the containers. The direct print head may also be formed with any other direct printing method for computer-controlled delivery of pressure droplets to the containers.

The at least one direct print head may be arranged stationarily on the container treatment machine. "Stationary" can mean here that the direct print head does not move along with the transport device. "Photo-curable inks" may mean that the light radiation in the printing ink causes a chemical reaction that converts the liquid printing ink into a substantially solid or pasty phase. By the light radiation, the printing ink can be polymerized, which optionally be formed in the printing ink radicals from added photoinitiators. "Printing ink" may mean here that it is an ink, a paint, a varnish or the like.

The curing device may include a light source, optionally a UV light source. In general, to cure photocuring ink UV light radiation in a Wavelength range of 200-480 nm used. The light source may be a medium pressure, high pressure, or high pressure mercury vapor lamp. Likewise, the light source may be a gas discharge lamp, an arc lamp, a UV light-emitting diode or a xenon UV flash lamp.

"Stationary" curing device may mean here that the curing device is fixedly arranged on the container treatment machine. In other words, this may mean that the curing device does not move circumferentially with the transport device. The curing device may be arranged on the container treatment machine such that in operation the containers are guided past the stationary curing device for curing the printing ink by means of the transport device.

The Abschirmeinhausung can be arranged like a trough between the turntable and the centering device of the container receptacles. The two ends of the trough-shaped Abschirmeinhausung can be provided with shutters. The Abschirmeinhausung can be designed as a bent and / or angled sheet metal element. Likewise, the Abschirmeinhausung comprise a plurality of assembled sheet metal elements. The Abschirmeinhausung may be formed like a chamber around the container receptacles. The access opening may be formed between the longitudinal edges of the channel-shaped Abschirmeinhausung. In a transport device designed as a carousel, the access opening of the shielding housing can be formed radially outward. In this case, the stationary curing device can be aligned with a light exit opening radially inwards on the carousel axis, with optionally the light exit opening corresponding to at least one access opening of the Abschirmeinhausungen in operation.

The shielding element of the curing device may comprise at least one sheet metal element that overlaps with the shielding housing. The Abschirmeinhausung and the shielding may be formed such that they form a chamber for curing the printing ink. The fact that a direct light leakage is prevented, may mean that the Abschirmeinhausung and the shielding element cooperate such that a light beam from the curing device and / or from the container surface at least once on the shielding element or the Abschirmeinhausung is reflected or scattered before passing out of the shielding and the Abschirmeinhausung formed chamber emerges. The shielding element and / or the shielding enclosure may comprise a surface coating which reflects the light radiation in a range of 0-30%, optionally in a range of 0-10%. The shielding element and / or the Abschirmeinhausung can substantially light-absorbing be educated. The shielding element and / or the Abschirmeinhausung can for better absorption of flat incident light radiation with a structured surface, optionally with corrugations, be formed.

The Abschirmeinhausung may be U-shaped along a longitudinal axis of the container receptacle formed and the access opening may be formed by the free ends of the U-shape substantially parallel to the conveying direction of the transport device. Due to the U-shaped design of Abschirmeinhausung this is particularly easy to produce from a sheet and thus particularly cost. "U-shaped" here may mean that a cross section of the Abschirmeinhausung essentially has a U-profile. "U-shaped" may also mean that the Abschirmeinhausung is formed of a substantially unilaterally open rectangular profile. The U-shape can be opened radially outward in a conveyor designed as a carousel. "Feed direction of the transport device" may mean that this is the direction in which the container receivers move during operation.

The shielding element may be formed like an umbrella from the edges of a light exit opening of the curing device beyond the edges of the access opening. This avoids that light radiation passes beyond the edges of the light exit opening to the print head. The fact that the shielding element has the form of an umbrella can mean that the shielding element projects substantially parallel to the transporting direction over edges of the light exit opening. The shielding element should preferably survive at least one, preferably 1.5 to 2, shielding widths on both sides of the curing device in order to optimally form a radiation labyrinth. Furthermore, this may mean that an upper and / or a lower edge of the shielding element overlap with corresponding ends of the Abschirmeinhausung.

The shielding element and / or a housing of the curing device may comprise air exchange openings which are each formed by overlapping elements as a radiation labyrinth. This avoids that forms an air pulsation by the movement of the transport device and the constantly closing and opening curing chambers, which would otherwise result in a fluctuation in the light spectrum of the curing device. "Labyrinthine" can mean here that the overlapping elements have a distance from each other, but are arranged offset in such a way that no direct passage of light is possible.

The distance of the curing device to the container receptacles can be adjustable by means of a linear adjustment. As a result, on the one hand the irradiance on the container surface can be adjusted and on the other hand the curing device can be adapted to different types of containers (for example, with different diameters). The linear adjustment can be designed to move the curing device perpendicular to the conveying direction of the transport device. The linear adjustment may comprise a guide rail and / or a spindle. "Distance" may mean here that this is the vertical distance of the curing device to the conveying direction of the transport device.

The linear adjustment may be formed with a drive which can be controlled via a machine control for adjusting the distance. As a result, the linear adjustment can be adjusted particularly precisely or automatically by means of a control command. The drive can be a direct drive, for example a servo motor or a stepper motor. The servomotor may include a rotary encoder for detecting the angular position of the motor axis. As a result, the distance between the linear adjustment and the container surface can be calculated precisely via the pitch of the spindle. Furthermore, the linear adjustment may include a stop for absolute referencing.

The machine control can be connected to a variety management for retrieving adjustment parameters of the linear adjustment. Thereby, the distance of the curing device can be automatically adjusted to the type of container used. The variety management may be a database in the machine control or in a remote computing device.

The shielding element can be designed to be adjustable with respect to a light source of the curing device via an adjustment mechanism, which optionally has elongate holes. As a result, after an adjustment of the curing device, the distance between the shielding element and the shielding housing can be adjusted. As a result, the light leakage between the shield member and the shield housing is minimized.

The curing device can be designed to be pivotable by means of a rotary joint from a working position into a maintenance position. As a result, the light source in the curing device can be achieved particularly easily for replacement. The axis of rotation of the rotary joint can be aligned substantially parallel to the conveying direction of the transport device.

The curing device can be locked in the working position by means of a closure element. This ensures that in the working position no unintentional pivoting of the curing device is possible. The closure element may be a tension lock. Furthermore, the curing device may comprise position elements, so that the curing device can always be locked in the same working position after repeated pivoting.

A safety sensor or switch on the curing device may be configured such that the curing device is automatically deactivated in the maintenance position. This ensures that the curing device does not inadvertently emit light radiation during maintenance, which may be harmful to health. As a result, the curing device is particularly safe to maintain. The safety sensor or switch may be formed between two legs, which are connected for pivoting with the hinge. The security sensor or switch may be configured to deactivate the light source in the curing device. In addition, the design can be made so that the radiator can only be tilted into the maintenance position when the supply lines are disconnected. This will further endanger the operator. The sensor may further be designed so that it can detect during operation, whether the radiator is inclined, so not exactly vertical, and therefore whether there is a risk that stray radiation could escape.

The curing device may comprise an activated carbon filter system for filtering the exhaust air. As a result, the ozone generated by UV light sources with a significant proportion of UV-C usually filtered out of the exhaust air. As a result, a health hazard to the operator by ozone is avoided. The activated carbon filter system may include an activated carbon filter and / or a blower. Furthermore, the activated carbon filter system can be arranged in a housing of the curing device or outside the housing of the curing device. The activated carbon filter system can be connected via a hose to the housing of the curing device.

Supply lines such as cooling water lines, cooling and exhaust air lines as well as pneumatic and electrical lines of the curing device can be solved with quick-release fasteners. As a result, the curing device can be released particularly quickly from the container treatment machine during maintenance or replacement. The quick-release closures can be electrical plugs or connection flanges in air or fluid lines.

The supply lines can be suspended with a tarable cable system. As a result, the supply of the curing device from above is possible, wherein in a pivoting of the curing device from the working position to the maintenance position, the supply lines are tracked by the tarable cable system. This avoids that the supply lines obstruct the maintenance staff during maintenance.

Fig. 1

eine Darstellung einer Behälterbehandlungsmaschine zur Bedruckung von Behältern in einer Draufsicht;

Fig. 2

eine Teildarstellung der Behälterbehandlungsmaschine aus der Fig. 1 in einer perspektivischen Ansicht;

Fig. 3A

eine seitliche Darstellung der Aushärteeinrichtung der Behälterbehandlungsmaschine der Fig. 1 in einer Arbeitsposition; und

Fig. 3B

eine seitliche Darstellung der Aushärteeinrichtung der Behälterbehandlungsmaschine der Fig. 1 in einer Wartungsposition.

Further features and advantages of the invention will be explained below with reference to the embodiments illustrated in the figures. Showing:

Fig. 1

an illustration of a container treatment machine for printing containers in a plan view;

Fig. 2

a partial view of the container treatment machine from the Fig. 1 in a perspective view;

Fig. 3A

a side view of the curing device of the container treatment machine of Fig. 1 in a working position; and

Fig. 3B

a side view of the curing device of the container treatment machine of Fig. 1 in a maintenance position.

Fig. 1 shows a representation of the container treatment machine 1 for printing the container 2 in a plan view. It can be seen that the containers 2 are first placed over the inlet star 11 in the container receptacles 4 of the transport device 3 designed as a carousel. The container receptacles 4 are rotatably formed by means of a direct drive about the container longitudinal axes (not shown here). With the carousel 3, the containers 2 are guided past the direct printing heads 5 _W , 5 _C , 5 _Y , 5 _M and 5 _K for printing with light-curing printing inks. After printing, the containers 2 are irradiated by the curing device 6 by means of UV light radiation, whereby the printing ink hardens. Subsequently, the container 2 are removed through the outlet star 12 the container receptacles 4 and further treatment stations (for example, a packaging station) supplied.

The direct print heads 5 work here with the inkjet printing process. The light-curing printing ink is removed from an ink supply and sprayed directly onto the surface of the container 2 via a plurality of printing nozzles. As a result, the containers 2 can be provided with an individual print image. With each of the direct print heads 5 _W, 5 _C, 5 _Y, 5 _M and 5 _K, the containers 2 are sequentially printed in sequence with the various colors of white, cyan, yellow, magenta and black to generate a multi-colored printed image. Immediately after the last direct print head 5 _K , the printing inks on the container surface are substantially liquid.

The curing device 6 here comprises a housing 61, in which a UV light source, not shown, is arranged, which emits UV light through the light exit opening 63 onto the containers 2 in a wavelength range of 200-480 nm. At the same time, the container 2 rotates about the rotation axis B. By the rotation, the printing ink along the entire container circumference hardened. Also, a cure without rotation is possible, for example, in the continuous curing of mold containers.

In order to protect the direct printing heads 5 _W -5 _K against unintentional curing of the printing ink, the container receptacles 4 are each formed with a Abschirmeinhausung 7, which has an access opening 71 for the curing device 6. The Abschirmeinhausung 7 is here U-shaped, that is, it has a U-profile in cross section. The ends of the U-profile of adjacent Abschirmeinhausungen 7 are interconnected and arranged substantially on the outer circumference of the carousel 3. This avoids that the light radiation of the curing device 6 in the interior of the carousel 3, in which also UV-sensitive components can be located, and from there via stray light paths to the direct print heads 5 _W -5 _K passes.

Furthermore, the curing device 6 comprises the shielding element 62, which covers the access opening 71 of the shielding housing 7 over its edges. For this purpose, the shielding element 62 is formed umbrella-like over the edges of the access opening 71 addition. This can be seen from the fact that the ends of the shielding element 62 are formed further along the adjacent Abschirmeinhausungen 7. The shielding element 62 is designed here 100% longer in the transport direction T than the access opening 71 of the shielding housing 7.

During printing and curing of the printing ink, the containers 2 in the container receptacles 4 are transported continuously with the carousel 3. It is also conceivable that the containers 2 are transported in a cycle operation and stopped in front of the direct printing heads 5 _W -5 _K or in front of the curing device 6. In other words, the containers 2 are located directly opposite to the individual direct print heads 5 _W -5 _K during clocking operation and are only rotated about their container longitudinal axes B in the container receptacles 4.

In the Fig. 2 is a partial view of the container treatment machine 1 of the Fig. 1 shown in a perspective view. The carousel 3 in the region of the curing device 6 can essentially be seen.

The carousel 3 is rotatably arranged about the axis of rotation A relative to a machine base 9. At the carousel 3, the container receptacles 4 are arranged at regular intervals, in which the containers 2 are respectively clamped by means of the centering device 4a and the turntable 4b. Furthermore, it can be seen that the container receptacles 4 each comprise a Abschirmeinhausung 7, which is a U-shaped plate around the axes of rotation of the container receptacles 4 are formed. Two edges 72 of the U-shaped Abschirmeinhausung 7 each form an access opening 71st

Furthermore, it can be seen that the curing device 6 is fixedly attached to the boom 10 of the machine base 9. Between the boom 10 and the curing device 6, the linear adjustment 68 is arranged with which the curing device 6 along the double arrow can be adjusted radially to the axis of rotation A of the carousel 3. Thereby, the distance between the curing device 6 and the container 2 is adjusted. The linear adjustment 68 here includes a servo motor, a spindle and guide rails (not shown here). In addition, the curing device 6 is pivotable by means of the rotary joint 69 and can be folded away from the carousel 3 for maintenance (more precisely in FIGS FIGS. 3A and 3B shown). For locking the rotary joint 69 is the closure element 66, which is designed as a quick-release closure. Furthermore, it can be seen that the safety switch 67 is arranged in the region of the two limbs connected by the swivel joint 69 and detects a folding away of the curing device 6. As a result, the curing device 6 is automatically deactivated during maintenance for the safety of the operator.

Furthermore, it can be seen that the curing device 6 comprises the shielding element 62, which cooperates with the access opening 71 of the Abschirmeinhausung 7. As a result, when the container receptacles 4 pass by the curing device 6, in each case a substantially closed chamber is formed, through which a light exit is avoided. The shielding element 62 is formed umbrella-like and includes the largely in the conveying direction along the outer circumference of the carousel 3 cylindrically shaped wings 62a and 62c, and the two above and below formed edge elements 62b and 62d. The two wings 62a and 62c protrude into the adjacent container receptacles 4 or their associated Abschirmeinhausungen 7 into it.

The shielding member 62 has a gap to the edges 72 of the Abschirmeinhausung 7 to ensure easy rotation of the carousel 3. The fact that the wings 62a and 62c are slightly bent, a direct light emission is up to the in the Fig. 1 Direct print heads 5 _W -5 _{K are} not possible. Further, the upper and lower edge members 62b and 62d overlap the respective end surfaces of the shield housings 7 and the carousel 3, respectively, so that no light radiation can escape upward or downward.

In addition, the shielding element 62 is connected via the collar 62e to the housing 61 of the curing device 6 and can be adjusted with the adjustment devices 64a, 64b. In an adjustment of the linear adjustment 68 so the changed distance of the shielding 62 are adjusted to the Abschirmeinhausungen 7. In this case, the screws 64b are released, and the shielding member 62 can be displaced radially relative to the carousel 3 by the elongated holes 64a formed in the collar 62e. Subsequently, the screws 64b are tightened again.

Furthermore, it can be seen that in the collar 62e, the air exchange openings 65 are formed, each of which form a radiation labyrinth by overlapping elements, not shown here. As a result, during a rotation of the carousel 3, the air supplied with the shielding housings 7 can escape through the air exchange openings 65, but also enter, and a constant pressure thus arises in front of the curing device 6.

Furthermore, the supply lines 81 a for air and 81 b for electric power and water cooling lines are indicated. Via the hose 81 a, the air is removed from the curing device 6 and filtered by means of the activated carbon system 80. This includes an activated carbon filter and a radial fan (both not shown here). During maintenance, the supply lines 81 a and 81 b can be easily separated by means of the quick-release fasteners 82 a and 82 b. The tarable cable system 83 is further provided to support the supply line 81 a and 81 b upwards. When folding away the curing device 6 so the supply lines 81 a and 81 b tracked accordingly, so that the operator is not hindered during maintenance.

In the Fig. 3A the curing device 6 of the container treatment machine 1 can be seen in a working position A and in the Fig. 3B in a maintenance position W.

In the Fig. 3A It can be seen that the curing device 6 is in a substantially vertical working position A, so that the shielding element 62 with the Abschirmeinhausung 7 forms a chamber. As a result, as described above, a light leakage from this area is prevented. Furthermore, it can be seen that the carousel 3 rotates about the axis A. About the linear adjustment 68 while the distance of the curing device 6 to the container 2 can be adjusted.

When maintenance is now according to the Fig. 3B First, the linear adjustment 68 from the carousel 3 outwardly moved (in the figure to the right), so that the edge elements 62b, 62d of the shielding member 62 are released to fold away. Subsequently, via the rotary joint 69, the curing device 6 in the FIG. 3B folded clockwise so that the light exit opening 63 is facing up and the curing device 6 is in the maintenance position W. At the same time the safety switch 67 is released by the folding away, whereby the light source (not shown here) is deactivated in the curing device 6. This avoids light radiation continuing to escape during maintenance.

By the hinge 69, it is particularly easy to fold the curing device 6 in the maintenance position W, in which the interior of the curing device 6 is easily accessible.

Overall, so in the Fig. 1-3B shown container container for the printing of containers 2 as follows: The container 2 are placed in the container receptacles 4 through the inlet star 11. Furthermore, the containers 2 are transported by means of the carousel 3 sequentially to the direct printing heads 5 _W - 5 _K and printed there with light-curing printing inks of various colors (white, cyan, yellow, magenta, black). Subsequently, the light-curing printing inks are cured by means of the curing device 6 by UV light radiation. So that no light radiation reaches the direct print heads 5 _W -5 _K , the container receptacles 4 are provided with the Abschirmeinhausung 7, the shielding element 62 of the curing device 6 with the access opening 71 cooperates such that no light radiation reaches the direct print heads 5 _W -5 _K. Subsequently, the containers 2 are continued by the drain star 12 to further treatment stations.

With the container treatment machine 1 in the Fig. 1-3B So it is possible to prevent clogging of the nozzles of the direct printing heads 5 _W - 5 _K , a reduction in print quality by unintentionally cured ink and minimize the risk to the operator by UV radiation Furthermore, UV-sensitive components are protected inside the machine.

It is understood that in the embodiment described above features are not limited to these specific combinations and are possible in any other combinations.

Claims (15)

Container treatment machine (1) for printing containers (2) with an optionally designed as a carousel transport device (3) for transporting the container (2) in container receptacles (4), with at least one direct print head (5 _W , 5 _C , 5 _Y , 5 _M , 5 _K ,) for printing with a light-curing printing ink and with a curing device (6) for curing the printing ink on the containers (2) by means of light radiation, optionally UV light radiation,
characterized in that
the container receptacles (4) are each formed with a Abschirmeinhausung (7) for shielding the light radiation having at least one access opening (71) for the curing device (6), and
the curing device (6) is formed with a shielding element (62) which cooperates with the access opening (71) of at least one shielding housing (7) in such a way that direct light emission is prevented. A container treatment machine (1) according to claim 1, wherein the shielding housing (7) is U-shaped along a longitudinal axis (B) of the container receptacle (4) and the access opening (71) is substantially parallel through the free ends (72) of the U-shape to the conveying direction (T) of the transport device (3) is formed. Container treatment machine (1) according to claim 1 or 2, wherein the shielding element (62) from the edges of a light exit opening (63) of the curing device (6) over the edges of the access opening (71) is formed umbrella-like. Container treatment machine (1) according to at least one of claims 1-3, wherein the shielding element (62) and / or a housing (61) of the curing device (6) air exchange openings (65), which are each formed by overlapping elements as a radiation labyrinth. Container treatment machine (1) according to at least one of claims 1-4, wherein the distance of the curing device (6) to the container receptacles (4) by means of a linear adjustment (68) is adjustable. Container treatment machine (1) according to claim 5, wherein the linear adjustment (68) is formed with a drive which can be controlled via a machine control for adjusting the distance. A container treatment machine (1) according to claim 6, wherein the machine controller is connected to a variety manager for retrieving adjustment parameters of the linear adjustment. Container treatment machine (1) according to at least one of claims 1-7, wherein the shielding element (62) via an optionally formed with slots adjusting mechanism (64a, 64b) relative to a light source of the curing device (6) is adjustable. Container treatment machine (1) according to at least one of claims 1-8, wherein the curing device (6) by means of a rotary joint (69) from a working position (A) in a maintenance position (W) is designed to be pivotable. Container treatment machine (1) according to claim 9, wherein the curing device (6) in the working position (A) by means of a closure element (66) is lockable. Container treatment machine (1) according to claim 9 or 10, wherein a safety sensor or switch (67) on the curing device (6) is designed such that the curing device in the maintenance position (W) is automatically deactivated. Container treatment machine (1) according to at least one of claims 1-11, wherein the curing device (6) comprises an activated carbon filter system (80) for filtering the exhaust air. Container treatment machine (1) according to at least one of claims 1-12, wherein supply lines (81a, 81b) of the curing device (6) with quick-release fasteners (82a, 82b) are detachable. Container treatment machine (1) according to claim 13, wherein the supply lines (81 a, 81 b) are suspended by a tarable cable pull system (83). A method of printing containers feasible with a Behäwlterbehandlungsmaschine (1) according to claim 1.

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