EP2661374B1 - Machine for printing of containers - Google Patents
Machine for printing of containers Download PDFInfo
- Publication number
- EP2661374B1 EP2661374B1 EP11805886.6A EP11805886A EP2661374B1 EP 2661374 B1 EP2661374 B1 EP 2661374B1 EP 11805886 A EP11805886 A EP 11805886A EP 2661374 B1 EP2661374 B1 EP 2661374B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier
- containers
- treatment
- machine according
- treatment stations
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007639 printing Methods 0.000 title claims description 37
- 239000000969 carrier Substances 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims 2
- 230000032258 transport Effects 0.000 description 13
- 239000000976 ink Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 238000010894 electron beam technology Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
- B41J3/40733—Printing on cylindrical or rotationally symmetrical objects, e. g. on bottles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/0872—Machines for printing on articles having essentially cylindrical surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
- B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
- B41F16/0073—Transfer printing apparatus for printing from an inked or preprinted foil or band with means for printing on specific materials or products
- B41F16/008—Transfer printing apparatus for printing from an inked or preprinted foil or band with means for printing on specific materials or products for printing on three-dimensional articles
- B41F16/0086—Transfer printing apparatus for printing from an inked or preprinted foil or band with means for printing on specific materials or products for printing on three-dimensional articles for printing on articles with cylindrical surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
- B41F17/30—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on curved surfaces of essentially spherical, or part-spherical, articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
Definitions
- the invention relates to a machine for printing on containers, such as bottles made of glass or plastic or cans, with a plurality of treatment stations, on which printheads and possibly further required for pre- and post-treatment of the container facilities are provided, and with a carrier for several Containers placed side by side on the carrier.
- Containers such as bottles and packages, are usually labeled so that consumer information can be attached. It is also known to apply markers or other information to the package with ink jet printers to allow for customizations that label printing does not allow. Such printing systems are monochrome and limited to a few printing dots per line.
- a plurality of single-color printheads operating according to the ink-jet principle are successively and correspondingly offset so that, depending on the number of colors, an always uniform distance between the individual pressure points is achieved.
- This is possible with an adjustment to a machine with several printheads arranged one after the other.
- the packaging material and the print heads are guided past each other at a constant speed. The performance of such a machine is therefore dependent on the printing speed of a respective printhead.
- the ink must either be dried by heat or hardened by crosslinking by means of UV or electron beams.
- This process is also to be applied at least as a so-called pinning, a "partial hardening", between the printing of successive printing inks, which increases the length of such machines.
- a device in which the containers are each arranged on a mandrel serving as a container carrier during printing. With several printheads distributed around the mandrel, a colored print image consisting of several color sets is applied to the containers while rotating the mandrel.
- the mandrels are provided on a circumferentially driven transport element, with which the containers are moved during printing on a transport path formed between a container inlet and a container outlet.
- Object of the present invention is therefore to increase the printing quality in the printing of containers at high printing performance and reliable function.
- the carrier is transportable via a conveyor belt from one treatment station to the next, that in each case a plurality of treatment stations are arranged substantially transversely to the conveyor belt in series next to each other, that the carrier is arranged substantially transversely to the conveyor belt and that the treatment stations and the carrier in a substantially vertical direction are movable relative to each other.
- the machine according to the invention operates in the longitudinal stroke and always handles several containers simultaneously. Since the containers and the print heads do not rotate around the machine during printing on a longitudinal machine, unlike in the case of the above-described rotary travelers, the airstream affecting the print quality is eliminated, so that a more exact print image can be achieved.
- the machine operates as a rotary-stroke, wherein the carrier is transportable via a rotating device from one treatment station to the next, wherein it rotates about a center of rotation.
- the carrier is arranged substantially radially to the rotating device. The treatment stations and the carrier are movable in a substantially vertical direction relative to each other.
- Both variants thus operate on the same principle, in which a plurality of containers are arranged side by side on the carrier and transported in groups from one treatment station to the next.
- the cross member can be lifted up from the conveyor belt, so that the stored on the cross member container are moved from below into the treatment stations.
- a plurality of, in particular 4 to 7, printheads are arranged in a ring around the container in a treatment station and are preferably arranged in an annular manner aligned with one another on a holding plate.
- turntables for receiving the containers are provided on the carrier, so that the containers can be rotated about the center of the annularly provided around them printheads.
- the printheads themselves are silent when printing, which further increases the print quality.
- the containers do not fall over during transport, they are preferably held by negative pressure on the turntables.
- a jamming is possible, but for example, in PET bottles because of the required pressure can lead to undesirable deformations.
- An exact positioning of the container is inventively achieved by a preferably rotatable centering, which is placed on the container and holds it by its own weight.
- the containers are provided with centering devices with rotary drives which, when the carrier is lifted, are provided with rotary drives arranged containers are raised along its longitudinal axis. Due to the overlying weight, the rotation of the drive is reliably transmitted to the container, so that its circumference can be defined guided past the printheads.
- the ink After printing, the ink is usually cured by UV rays or electron beam guns (e-beam). When using electron beam guns, cheaper ink can be used because of better crosslinking. However, this z. B. generated X-rays, which may not be released to the environment.
- a lead-insulated cover provided on all sides and only open at the bottom is provided at the treatment station provided for the aftertreatment, which cover can be closed by lifting the support either by the support itself or by the turntables. If the cross member is lifted with the containers, the box is sealed tightly from below, so that the UV or e-beam treatment can be performed without unwanted radiation escaping.
- the cross member according to the invention alternatively and / or in addition to the pressing centered by the example lifting cylinder relative to the treatment station and / or additionally mechanically clamped. This can be done in a particularly simple manner by means of a Exzenterklemme, but also pneumatically, hydraulically or magnetically. Due to the tension of the cross member, all containers arranged thereon are simultaneously positioned in their respective treatment stations.
- the capacity of the machine can be further increased by several, in particular two to four rows of similar treatment stations in a row are arranged and the timing of the machine moves the cross member respectively corresponding to two to four steps.
- the treatment stations can be attached to the ground separately from the transport system according to the invention.
- the transport movements when inserting new containers and removing the finished printed containers are not transferred to the treatment station printing.
- the processing stations for preparing the printing, the printing process and the color curing can then be followed by stations for filling and closing the containers within the same machine.
- the existing container receptacle, the centering of the container, the transport device, the supply and delivery is not necessary a second time and achieved a low-cost system with multiple benefits.
- FIG. 1 and 2 schematically shown longitudinal machine 1 for printing on containers 2, such as bottles made of glass or plastic, cans or the like.
- containers 2 such as bottles made of glass or plastic, cans or the like.
- Several, shown here in bottle container 2 on a designed as a transport beam carrier (cross member) 3 are arranged side by side in series and treated in parallel.
- Each cross member 3 has a defined number, preferably eight or twelve, each rotatable about an axis turntable 4.
- the container 2 are held on the turntables 4 by negative pressure.
- 4 not shown suction holes are provided in the turntables, is sucked by the.
- the vacuum extraction takes place centrally, for example by a vacuum channel 15 along one or both sides of the machine 1.
- the vacuum channel 15 has guides 16, in which lateral end plates 17 of the cross member 3 slide to avoid additional tubes during longitudinal transport as well as the lifting movement ,
- the vacuum channels 15 are sealed to the lateral end plates 17 of the cross member 3 as well as the turntable 4, for example. About brush strips or seals.
- the turntable 4 are adapted by means of interchangeable format parts 10 of the bottom contour of the bottle.
- the turntable 4 is then preferably rotated with low torque, so that the container contour can engage in the negative mold of the format part 10 on the turntable 4 and thereby z. B. the rotation stops.
- the cross member 3 are transported by a machine 1 to the individual treatment stations 7 via a conveyor belt 6, in which the cross member 3 via centering pins 19 or the like.
- the conveyor belt 6 is moved in cycles. This can be at a first station z. B. eight containers 2 are pushed onto the individual turntable 4 and fixed by the negative pressure from the lateral vacuum channels 15.
- the cross member 3 are moved with their fixed containers 2 by the conveyor belt 6 intermittently. They thus arrive at a first treatment station 7, in which the cross member 3 with all centered and thus fixed containers 2 is lifted off the conveyor belt 6. The lifting of the cross member 3 via pneumatic cylinder 8. Alternatively, the cross member 3 remain on the conveyor belt 6 and the treatment stations 7 are lowered accordingly and then lifted again.
- centering 5 are provided at the treatment stations, so that the container 2 align its axis perpendicular.
- These centerings are driven by rotary drives or motors 9, for example servomotors or stepper motors, and transmit the rotational movement via the centering 5 to the containers 2.
- the containers 2 are used to lift the centering 5 and the motors 9 by the lifting movement and their own weight the necessary friction or positive engagement generated to the necessary Transmit torque. If necessary, the weight is supported by another force
- the cross members 3 are preferably fixed in their upper position by a plurality of electromagnets or mechanical locks, for example.
- An eccentric clamp to prevent vibrations and possible bending.
- the Be Daveerzentrierept 5 can be lifted at its top in a coupling, not shown, which is connected to a rotary drive 9 per station.
- the cross member 3 with the containers 2 are first transported to a pretreatment station 7a and treated after lifting in the station by a plasma jet on its surface to be printed to z. As grease or activate the surface.
- the containers can be centered in this station by the centering 5 and rotated.
- the containers 2 are lowered together with the cross member 3 in the cross beam centering on the conveyor belt 6 and further transported to the printing station 7b. There, the cross member 3 are raised again with the containers 2 and thereby in the Be fiscalerzentrierept 5, which is connected in each case one designed as a servomotor or stepper motor rotary drive or motor 9 out.
- the containers 2 are now rotated and the pressure begins, as soon as a constant speed is reached, preferably at all print heads 12 of a station 7b simultaneously.
- Each container 2 is printed in its own printing station 7b, the print heads 12 are arranged to circular on a holding plate 13 on a diameter corresponding to the maximum diameter of the container 2 plus a predefined distance (see. Fig. 2 ).
- the arrangement of the print heads 12 of the contour of the container 2 is adjusted.
- the container 2 is fed below the holding plate 13 of the print heads 12 and through a simple lifting device 8 raised so far that the container 2 is positioned with its surface to be printed in the ring of the print heads 12.
- the hub is instead of pneumatic cylinder 8 by a servo axis, which is able to bring the container so in a second stroke position that a continuation of the pressure can be done without a hitch.
- the holding plates 13 with the print heads 12 are designed to be removable in their fixation down, without the orientation of the heads 12 is lost among themselves.
- the printheads 12 can be changed quickly by attaching a new support plate 13, wherein the setting of the annular printheads 12 can be made with each other on the support plate 13 independently of the machine 1 on a test stand, not shown.
- the cross beams become 3 lowered again with the containers 2 and further transported to the next (post-treatment) station 7c. There, they are raised again and put back by coupling the container centering to a respective rotary drive 9 in rotation. In this case, the container 2 moves this time in a well-closed and only downwardly open cover 14.
- the cover can be performed either individually per station or as a box over about the length and width of the carrier.
- the downward opening is sealed either by the turntable 4 or the carrier 3 by the turntable 4 or the carrier 3 at the end of the lifting operation there rests or drives in a labyrinth seal.
- the ink is cured by means of UV rays 20 or electron beams (e-beam) 20, or partially cured (pinning), if other colors to be printed follow.
- e-beam electron beams
- pinning partially cured
- the empty cross member 3 are guided in a rail 11 on the return strand of the transport device driven back to the beginning. Due to the guidance in the rail 11, the cross member 3 can not fall out of its centering.
- the treatment stations 7 are preferably staggered on the ground, separate from the transport device 6, in order to avoid that vibrations caused by mechanical processes other than the printing itself are transmitted to the printheads 12.
- the invention ensures in a simple manner an optimal print image without being influenced by tolerances.
- two to four rows of the respective carrier 3 are arranged one behind the other and the conveyor belt 6 is driven in double, triple or quadruple steps in order to achieve a correspondingly increased output.
- stations for filling and closing the containers within the same machine 1 can subsequently be connected downstream of the treatment stations 7 for preparing the printing, the printing process and the color curing.
- the existing container receptacle, the centering of the container, the transport device, the supply and delivery is not necessary a second time and achieved a low-cost system with multiple benefits.
- the machine 30 operates in a rotary cycle, wherein a plurality of treatment stations 32 are arranged in a star shape around a center of rotation 31.
- a rotating device 33 has a plurality of carriers 34, which are also arranged in a star shape around the center of rotation 31 below the treatment stations 32.
- a feed station 32a a plurality of containers 2 arranged on a feed belt 35 or the like are gripped by a radially extendable gripper 36a and deposited on a carrier 34 on which the containers 2 are held in the same manner as in the first embodiment described above become. Subsequently, the carriers 34 are rotated by means of the rotator 33 and positioned below the next treatment station 32b. At this treatment is carried out analogously to the pretreatment 7a in the first embodiment.
- the containers 2 are moved with the support 34 rotationally to the next treatment station 32c and after the treatment there takes place to further treatment stations 32d before it is constructed at a removal station which is similar to theanistation 32a, lifted over a gripping device 36h again radially out of the machine and sold on a removal belt 37.
- the treatment and mounting of the containers in the individual treatment stations is carried out in the rotary transfer machine 30 in the same manner as has been explained above with respect to the longitudinal clock machine 1.
- the difference between the embodiments is essentially only the way of transport between the individual treatment stations.
- the advantage of the machines 1, 30 according to the invention over the conventional continuous rotary machines consists in the higher utilization of the print heads 12, since all print heads 12 have no waiting time except for the container exchange.
- the engine 1 becomes smaller because there are no "empty spaces" in the center of the carousel (s).
- Stationary printheads 12 do not produce centrifugal force affecting print quality and any stationary ink supply can be used. Special rotary feedthroughs are eliminated. Another advantage is the pressure at standstill. So there can be no vibrations through the barrel that can affect the print image.
Description
Die Erfindung bezieht sich auf eine Maschine zum Bedrucken von Behältern, wie Flaschen aus Glas oder Kunststoff oder Dosen, mit mehreren Behandlungsstationen, an welchen Druckköpfe und ggf. weitere zur Vor- und Nachbehandlung der Behälter erforderliche Einrichtungen vorgesehen sind, und mit einem Träger für mehrere Behälter, die nebeneinander auf dem Träger angeordnet werden.The invention relates to a machine for printing on containers, such as bottles made of glass or plastic or cans, with a plurality of treatment stations, on which printheads and possibly further required for pre- and post-treatment of the container facilities are provided, and with a carrier for several Containers placed side by side on the carrier.
Behälter, wie Flaschen und Verpackungen, werden üblicherweise mit Etiketten versehen, damit Verbraucherinformationen angebracht werden können. Es ist auch bekannt, mit Tintenstrahldruckern Markierungen oder andere Informationen auf die Verpackung aufzubringen, um Individualisierungen zu ermöglichen, die der Etikettendruck nicht erlaubt. Solche Drucksysteme arbeiten einfarbig und sind auf wenige Druckpunkte pro Zeilen beschränkt.Containers, such as bottles and packages, are usually labeled so that consumer information can be attached. It is also known to apply markers or other information to the package with ink jet printers to allow for customizations that label printing does not allow. Such printing systems are monochrome and limited to a few printing dots per line.
Um einen mehrfarbigen Druck direkt auf Behälter aufzubringen, werden mehrere einfarbig nach dem Tintenstrahlprinzip arbeitende Druckköpfe nacheinander und entsprechend versetzt so angeordnet, dass abhängig von der Anzahl der Farben ein immer gleichmäßiger Abstand zwischen den einzelnen Druckpunkten erreicht wird. Dies ist mit einer Justage an einer Maschine mit mehreren fest nacheinander angeordneten Druckköpfen möglich. Das Verpackungsmaterial und die Druckköpfe werden dabei mit konstanter Geschwindigkeit aneinander vorbei geführt. Die Leistung einer solchen Maschine ist daher abhängig von der Druckgeschwindigkeit eines jeweiligen Druckkopfes. Dies ist zwar praktikabel für saugfähige Verpackungsmaterialien, bei anderen Werkstoffen, wie Metallen, Glas oder Kunststoff, muss dagegen die Farbe entweder durch Wärme getrocknet oder mittels UV- oder Elektronenstrahlen durch Vernetzung gehärtet werden. Dieser Vorgang ist auch zwischen dem Druck von aufeinanderfolgenden Druckfarben zumindest als sogenanntes Pinning, einer "Teilhärtung", anzuwenden, was die Länge solcher Maschinen erhöht.In order to apply a multicolor print directly to containers, a plurality of single-color printheads operating according to the ink-jet principle are successively and correspondingly offset so that, depending on the number of colors, an always uniform distance between the individual pressure points is achieved. This is possible with an adjustment to a machine with several printheads arranged one after the other. The packaging material and the print heads are guided past each other at a constant speed. The performance of such a machine is therefore dependent on the printing speed of a respective printhead. Although this is practicable for absorbent packaging materials, for other materials such as metals, glass or plastic, on the other hand, the ink must either be dried by heat or hardened by crosslinking by means of UV or electron beams. This process is also to be applied at least as a so-called pinning, a "partial hardening", between the printing of successive printing inks, which increases the length of such machines.
Bei der in der
Aus der
Die industrielle Nutzung dieser Anlagen soll bei hohen Leistungen, beispielsweise in Flaschenabfüllanlagen mit bis zu 36.000 Flaschen pro Stunde erfolgen. Hierbei werden die Flaschen und damit auch der Druckkopf auf einer rotierenden Maschine mit einer Geschwindigkeit von ca. 1,5 m/s transportiert, so dass die Farbtropfen einer Luftströmung ausgesetzt werden, welche die Druckqualität beeinträchtigen kann.The industrial use of these plants should be carried out at high capacities, for example in bottling plants with up to 36,000 bottles per hour. Here, the bottles and thus the printhead are transported on a rotating machine at a speed of about 1.5 m / s, so that the drops of paint are exposed to an air flow, which can affect the print quality.
Aufgabe der vorliegenden Erfindung ist es daher, bei der Bedruckung von Behältern bei hoher Druckleistung und zuverlässiger Funktion die Druckqualität zu erhöhen.Object of the present invention is therefore to increase the printing quality in the printing of containers at high printing performance and reliable function.
Diese Aufgabe wird bei einer Maschine der eingangs genannten Art mit der Erfindung im Wesentlichen dadurch gelöst, dass der Träger über ein Transportband von einer Behandlungsstation zur nächsten transportierbar ist, dass jeweils mehrere Behandlungsstationen im Wesentlichen quer zum Transportband in Reihe nebeneinander angeordnet sind, dass der Träger im Wesentlichen quer zum Transportband angeordnet ist und dass die Behandlungsstationen und der Träger in im Wesentlichen vertikaler Richtung relativ zueinander bewegbar sind.This object is achieved in a machine of the type mentioned above with the invention essentially in that the carrier is transportable via a conveyor belt from one treatment station to the next, that in each case a plurality of treatment stations are arranged substantially transversely to the conveyor belt in series next to each other, that the carrier is arranged substantially transversely to the conveyor belt and that the treatment stations and the carrier in a substantially vertical direction are movable relative to each other.
Die erfindungsgemäße Maschine arbeitet im Längstakt und behandelt immer mehrere Behälter gleichzeitig. Da bei einer Längsmaschine anders als bei den oben beschriebenen Rundläufern die Behälter und die Druckköpfe beim Bedrucken nicht um die Maschine rotieren, entfällt der die Druckqualität beeinträchtigende Fahrtwind, so dass sich ein exakteres Druckbild erreichen lässt.The machine according to the invention operates in the longitudinal stroke and always handles several containers simultaneously. Since the containers and the print heads do not rotate around the machine during printing on a longitudinal machine, unlike in the case of the above-described rotary travelers, the airstream affecting the print quality is eliminated, so that a more exact print image can be achieved.
Bei einer alternativen Ausführungsform arbeitet die Maschine als Rundtakter, wobei der Träger über eine Dreheinrichtung von einer Behandlungsstation zur nächsten transportierbar ist, wobei er um ein Drehzentrum rotiert. Mehrere Behandlungsstationen sind jeweils im Wesentlichen radial zum Drehzentrum in Reihe nebeneinander angeordnet sind, Auch der Träger ist im Wesentlichen radial zur Dreheinrichtung angeordnet. Die Behandlungsstationen und der Träger sind in im Wesentlichen vertikaler Richtung relativ zueinander bewegbar.In an alternative embodiment, the machine operates as a rotary-stroke, wherein the carrier is transportable via a rotating device from one treatment station to the next, wherein it rotates about a center of rotation. Several treatment stations are each arranged substantially radially to the center of rotation in a row next to each other. Also, the carrier is arranged substantially radially to the rotating device. The treatment stations and the carrier are movable in a substantially vertical direction relative to each other.
Beide Varianten arbeiten somit nach demselben Prinzip, bei dem mehrere Behälter nebeneinander auf dem Träger angeordnet und gruppenweise von einer Behandlungsstation zur nächsten transportiert werden.Both variants thus operate on the same principle, in which a plurality of containers are arranged side by side on the carrier and transported in groups from one treatment station to the next.
Bei einer bevorzugten Ausführungsform lassen sich die Querträger nach oben vom Transportband abheben, so dass die auf dem Querträger gelagerten Behälter von unten in die Behandlungsstationen eingefahren werden.In a preferred embodiment, the cross member can be lifted up from the conveyor belt, so that the stored on the cross member container are moved from below into the treatment stations.
Erfindungsgemäß sind mehrere, insbesondere 4 bis 7 Druckköpfe in einer Behandlungsstation ringförmig um den Behälter angeordnet und vorzugsweise ringförmig zueinander ausgerichtet an einer Halteplatte angebracht. Damit wird ein schneller Wechsel von Druckköpfen mit einer neuen Halteplatte ermöglicht und die Einstellung der Druckköpfe zueinander auf der Halteplatte kann unabhängig von der Maschine auf einem Teststand vorgenommen werden. Die Wartungszeiten der Maschine lassen sich entsprechend verringern.According to the invention, a plurality of, in particular 4 to 7, printheads are arranged in a ring around the container in a treatment station and are preferably arranged in an annular manner aligned with one another on a holding plate. This allows a quick change of print heads with a new plate and the adjustment of the print heads to each other on the plate can be made independently of the machine on a test stand. The maintenance times of the machine can be correspondingly reduced.
Gemäß einer Weiterbildung der Erfindung sind auf dem Träger Drehteller zur Aufnahme der Behälter vorgesehen, so dass die Behälter um das Zentrum der ringförmig um sie vorgesehenen Druckköpfen gedreht werden können. Die Druckköpfe selbst stehen beim Druck still, wodurch die Druckqualität weiter erhöht wird.According to one embodiment of the invention, turntables for receiving the containers are provided on the carrier, so that the containers can be rotated about the center of the annularly provided around them printheads. The printheads themselves are silent when printing, which further increases the print quality.
Damit die Behälter beim Transport nicht umfallen, werden sie vorzugsweise durch Unterdruck auf den Drehtellern gehalten. Alternativ ist ein Festklemmen möglich, was aber bspw. bei PET-Flaschen wegen des erforderlichen Druckes zu unerwünschten Verformungen führen kann.So that the containers do not fall over during transport, they are preferably held by negative pressure on the turntables. Alternatively, a jamming is possible, but for example, in PET bottles because of the required pressure can lead to undesirable deformations.
Eine exakte Positionierung der Behälter wird erfindungsgemäß durch eine vorzugsweise drehbare Zentrierung erreicht, die auf den Behälter aufsetzbar ist und diesen durch ihr Eigengewicht hält.An exact positioning of the container is inventively achieved by a preferably rotatable centering, which is placed on the container and holds it by its own weight.
In Weiterbildung dieses Erfindungsgedankens sind an den Behandlungsstationen oberhalb des Trägers den Behältern zugeordnete Zentrierungen mit Drehantrieben vorgesehen, welche beim Anheben des Trägers durch die auf diesem angeordneten Behälter entlang ihrer Längsachse angehoben werden. Aufgrund des aufliegenden Gewichtes wird die Drehung des Antriebs zuverlässig auf den Behälter übertragen, so dass dessen Umfang definiert an den Druckköpfen vorbeigeführt werden kann.In a further development of this idea of the invention, at the treatment stations, above the carrier, the containers are provided with centering devices with rotary drives which, when the carrier is lifted, are provided with rotary drives arranged containers are raised along its longitudinal axis. Due to the overlying weight, the rotation of the drive is reliably transmitted to the container, so that its circumference can be defined guided past the printheads.
Nach dem Druck wird die Farbe üblicherweise durch UV-Strahlen oder mittels Elektronenstrahlkanonen (e-beam) gehärtet. Bei der Verwendung von Elektronenstrahlkanonen kann wegen der besseren Vernetzung billigere Tinte eingesetzt werden. Allerdings werden hierbei z. B. Röntgenstrahlen erzeugt, die nicht an die Umgebung abgegeben werden dürfen. Erfindungsgemäß ist daher an der für die Nachbehandlung vorgesehenen Behandlungsstation eine bspw. bleiisolierte allseits geschlossene und nur nach unten offene Abdeckung vorgesehen, welche durch das Anheben des Trägers entweder durch den Träger selbst oder durch die Drehteller verschließbar ist. Wird der Querträger mit den Behältern angehoben, so wird der Kasten dicht von unten verschlossen, so dass die UV oder e-beam-Behandlung vorgenommen werden kann, ohne dass unerwünschte Strahlung austritt.After printing, the ink is usually cured by UV rays or electron beam guns (e-beam). When using electron beam guns, cheaper ink can be used because of better crosslinking. However, this z. B. generated X-rays, which may not be released to the environment. According to the invention, for example, a lead-insulated cover provided on all sides and only open at the bottom is provided at the treatment station provided for the aftertreatment, which cover can be closed by lifting the support either by the support itself or by the turntables. If the cross member is lifted with the containers, the box is sealed tightly from below, so that the UV or e-beam treatment can be performed without unwanted radiation escaping.
Um beim Druck eine definierte Positionierung zu gewährleisten, wird der Querträger erfindungsgemäß alternativ und/oder zusätzlich zum Anpressen durch den bspw Hubzylinder gegenüber der Behandlungsstation zentriert und / oder zusätzlich mechanisch verspannt. Dies kann in besonders einfacher Weise mittels einer Exzenterklemme, aber auch pneumatisch, hydraulisch oder magnetisch erfolgen. Durch die Verspannung des Querträgers werden alle auf diesem angeordneten Behälter gleichzeitig in ihren jeweiligen Behandlungsstationen positioniert.In order to ensure a defined positioning during printing, the cross member according to the invention alternatively and / or in addition to the pressing centered by the example lifting cylinder relative to the treatment station and / or additionally mechanically clamped. This can be done in a particularly simple manner by means of a Exzenterklemme, but also pneumatically, hydraulically or magnetically. Due to the tension of the cross member, all containers arranged thereon are simultaneously positioned in their respective treatment stations.
Die Kapazität der Maschine lässt sich dadurch weiter erhöhen, dass mehrere, insbesondere zwei bis vier Reihen gleichartiger Behandlungsstationen hintereinander angeordnet sind und die Taktung der Maschine die Querträger jeweils entsprechend um zwei bis vier Schritte vorwärtsbewegt.The capacity of the machine can be further increased by several, in particular two to four rows of similar treatment stations in a row are arranged and the timing of the machine moves the cross member respectively corresponding to two to four steps.
Um Erschütterungen beim Druck weiter zu reduzieren, können erfindungsgemäß die Behandlungsstationen separat vom Transportsystem am Boden befestigt werden. Somit werden die Transportbewegungen beim Einsetzen neuer Behälter und dem Abnehmen der fertig bedruckten Behälter nicht auf die Behandlungsstation Drucken übertragen.In order to further reduce vibration during printing, the treatment stations can be attached to the ground separately from the transport system according to the invention. Thus, the transport movements when inserting new containers and removing the finished printed containers are not transferred to the treatment station printing.
Erfindungsgemäß können den Behandlungsstationen zum Vorbereiten der Bedruckung, des Druckvorgangs und der Farbhärtung anschließend Stationen zum Befüllen und Verschließen der Behälter innerhalb derselben Maschine nachgeschaltet werden. Damit wird die vorhandene Behälteraufnahme, die Zentrierung der Behälter, die Transporteinrichtung, die Auf- und Abgabe nicht ein 2-tes Mal notwendig und ein preisgünstiges System mit Mehrfachnutzen erreicht.According to the invention, the processing stations for preparing the printing, the printing process and the color curing can then be followed by stations for filling and closing the containers within the same machine. Thus, the existing container receptacle, the centering of the container, the transport device, the supply and delivery is not necessary a second time and achieved a low-cost system with multiple benefits.
Weiterbildungen, Vorteile und Anwendungsmöglichkeiten der Erfindung ergeben sich auch aus der nachfolgenden Beschreibung von Ausführungsbeispielen und der Zeichnung. Dabei bilden alle beschriebenen und/oder bildlich dargestellten Merkmale für sich oder in beliebiger Kombination den Gegenstand der Erfindung, unabhängig von ihrer Zusammenfassung in den Ansprüchen oder deren Rückbeziehung.Further developments, advantages and applications of the invention will become apparent from the following description of exemplary embodiments and the drawings. All described and / or illustrated features alone or in any combination form the subject matter of the invention, regardless of their combination in the claims or their dependency.
Es zeigen:
- Fig. 1
- schematisch eine Seitenansicht einer erfindungsgemäßen Maschine nach einer ersten, im Längstakt arbeitenden Ausführungsform,
- Fig. 2.
- schematisch ein Draufsicht auf die Längsmaschine mit nur teilweise dargestellten Querträgern,
- Fig. 3A und 3B
- schematisch einen Teilschnitt durch die Maschine mit abgesenktem bzw. angehobenem Träger,
- Fig. 4
- schematisch eine perspektivische Ansicht einer erfindungsgemäßen Maschine nach einer zweiten, im Rundtakt arbeitenden Ausführungsform,
- Fig. 1
- 1 is a schematic side view of a machine according to the invention after a first, longitudinally operating embodiment,
- Fig. 2.
- schematically a plan view of the longitudinal machine with only partially illustrated cross members,
- FIGS. 3A and 3B
- schematically a partial section through the machine with lowered or raised support,
- Fig. 4
- 1 schematically shows a perspective view of a machine according to the invention according to a second, rotary-clocking embodiment,
Bei der in den
Jeder Querträger 3 hat eine definierte Anzahl, vorzugsweise acht oder zwölf, jeweils um eine Achse drehbarer Drehteller 4. Die Behälter 2 werden auf den Drehtellern 4 durch Unterdruck gehalten. Hierzu sind in den Drehtellern 4 nicht dargestellte Sauglöcher vorgesehen, durch die angesaugt wird. Vorzugsweise erfolgt die Unterdruckabsaugung zentral, bspw. durch einen Unterdruckkanal 15 entlang einer oder beiden Seiten der Maschine 1. Der Unterdruckkanal 15 hat dabei Führungen 16, in denen seitliche Endplatten 17 der Querträger 3 gleiten, um beim Längstransport wie auch der Hubbewegung zusätzliche Schläuche zu vermeiden. Die Unterdruckkanäle 15 werden zu den seitlichen Endplatten 17 der Querträger 3 ebenso wie die Drehteller 4 bspw. über Bürstenleisten oder Dichtungen abgedichtet. Während der Hubbewegung laufen über und unter den Endplatten 17 Schieber 18, die die durch den Hub entstehenden Lücken verschließen. Die Standfestigkeit der Behälter 2 auf den Drehtellern 4 kann dadurch weiter verbessert werden, dass die Drehteller 4 mittels auswechselbarer Formatteile 10 der Bodenkontur der Flasche angepasst sind. Beim Aufsetzen der Behälter 2 auf den Drehteller 4 wird dann der Drehteller 4 vorzugsweise mit geringem Drehmoment gedreht, damit die Behälterkontur in die Negativform des Formatteils 10 auf dem Drehteller 4 einrasten kann und dadurch z. B. die Drehung stoppt.Each
Die Querträger 3 werden über ein Transportband 6, in welches die Querträger 3 über Zentrierbolzen 19 oder dgl. eingreifen, durch die Maschine 1 zu den einzelnen Behandlungsstationen 7 transportiert. Das Transportband 6 wird taktweise bewegt. Damit können an einer ersten Station z. B. acht Behälter 2 auf die einzelnen Drehteller 4 aufgeschoben und durch den Unterdruck aus den seitlichen Unterdruckkanälen 15 fixiert werden.The
Die Querträger 3 werden mit ihren fixierten Behältern 2 durch das Transportband 6 taktweise weiterbewegt. Sie gelangen so an eine erste Behandlungsstation 7, in der der Querträger 3 mit allen zentrierten und so fixierten Behältern 2 von dem Transportband 6 abgehoben wird. Das Anheben der Querträger 3 erfolgt über Pneumatikzylinder 8. Alternativ können die Querträger 3 auf dem Transportband 6 verbleiben und die Behandlungsstationen 7 werden entsprechend abgesenkt und anschließend wieder abgehoben.The
Oberhalb der Drehteller 4 sind an den Behandlungsstationen 7 Zentrierungen 5 vorgesehen, damit die Behälter 2 ihre Achse senkrecht ausrichten. Diese Zentrierungen werden durch Drehantriebe oder Motoren 9, bspw Servomotoren oder Schrittmotoren, angetrieben und übertragen die Drehbewegung über die Zentrierung 5 auf die Behälter 2. Dabei wird ausgenutzt, dass die Behälter 2 die Zentrierung 5 und die Motoren 9 durch die Hubbewegung anheben und deren Eigengewicht die notwendige Reibung oder Formschluss erzeugt, um das notwendige Drehmoment zu übertragen. Gegebenenfalls wird das Gewicht durch eine weitere Kraft unterstütztAbove the turntable 4 7 centering 5 are provided at the treatment stations, so that the
Die Querträger 3 werden vorzugsweise in ihrer oberen Position durch mehrere Elektromagnete oder mechanischen Verriegelungen, bspw. eine Exzenterklemme, fixiert, um Schwingungen und mögliches Durchbiegen zu verhindern. Dabei können alternativ die Behälterzentrierungen 5 auch an ihrer Oberseite in eine nicht dargestellte Kupplung gehoben werden, die mit einem Drehantrieb 9 je Station verbunden ist.The
In der Maschine 1 werden die Querträger 3 mit den Behältern 2 zunächst zu einer Vorbehandlungsstation 7a transportiert und nach Anheben in die Station durch einen Plasmastrahl an ihrer zu bedruckenden Fläche behandelt, um z. B. Fette abzulösen oder die Oberfläche zu aktivieren. Die Behälter können in dieser Station durch die Zentrierung 5 zentriert und in Rotation versetzt werden.In the machine 1, the
Nach der Plasmabehandlung werden die Behälter 2 zusammen mit dem Querträger 3 in die Querträgerzentrierung auf dem Transportband 6 abgesenkt und weitertransportiert zur Druckstation 7b. Dort werden die Querträger 3 mit den Behältern 2 wieder angehoben und dabei in die Behälterzentrierungen 5, die jeweils einem als Servomotor oder Schrittmotor ausgeführten Drehantrieb oder Motor 9 verbunden ist, geführt. Die Behälter 2 werden nun in Drehung versetzt und der Druck beginnt, sobald eine konstante Drehzahl erreicht ist, vorzugsweise an allen Druckköpfen 12 einer Station 7b gleichzeitig. Jeder Behälter 2 wird in einer eigenen Druckstation 7b bedruckt, deren Druckköpfe 12 dazu kreisförmig auf einer Halteplatte 13 auf einem Durchmesser, der dem maximalen Durchmesser des Behälters 2 plus einem vordefinierten Abstand entspricht, angeordnet werden (vgl.
Nach Ende der Rotation (bei einem einfachen Druck nach einer Drehung, bei einem Druck höherer Auflösung nach zwei Drehungen, wobei dann nach der ersten Drehung ein Versatz erzeugt wird, damit zwischen die Druckpunkte der ersten Drehung die nachfolgende Druckpunkte aufgebracht werden können) werden die Querträger 3 mit den Behältern 2 erneut abgesenkt und zur nächsten (Nachbehandlungs-) Station 7c weitertransportiert. Dort werden sie erneut angehoben und wieder durch Ankuppeln der Behälterzentrierung an einen jeweiligen Drehantrieb 9 in Rotation versetzt. Dabei fährt der Behälter 2 dieses Mal in eine allseits geschlossene und nur nach unten offene Abdeckung 14. Die Abdeckung kann entweder einzeln pro Station oder als Kasten über ca. die Länge und Breite des Trägers ausgeführt werden. Die nach unten gerichtete Öffnung wird entweder durch den Drehteller 4 oder den Träger 3 abgedichtet, indem der Drehteller 4 oder der Träger 3 bei Ende des Hubvorgangs dort anliegt oder in eine Labyrinthabdichtung fährt. An dieser Station 7c wird die Farbe mittels UV-Strahlen 20 oder Elektronenstrahlen (e-beam) 20 gehärtet, bzw. teilgehärtet (Pinning), wenn andere zu bedruckende Farben folgen. Somit können durch die Ausbildung der Abdeckung 14 keine Strahlen austreten und eine für die Umgebung sichere Behälterbehandlung erfolgen. Alternativ kann an dieser Station für alle Behälter ein gemeinsamer Antrieb zur Rotation installiert werden, der z. B. über einen Reibriemen alle Behälterzentrierungen 5 antreibt. Nach Ende des Härtungsvorgangs wird der Träger 3 mit den Behältern 2 wieder abgesenkt und zur letzten Station, der Ausgabestation, gefahren, von der aus sie die Anlage verlässt.After the end of the rotation (at a simple pressure after a rotation, at a higher resolution pressure after two rotations, then an offset is generated after the first rotation so that the subsequent pressure points can be applied between the pressure points of the first rotation), the cross beams become 3 lowered again with the
Die leeren Querträger 3 werden in einer Schiene 11 geführt über das Rücktrum der Transportvorrichtung wieder zum Anfang gefahren. Durch die Führung in der Schiene 11 können die Querträger 3 nicht aus ihrer Zentrierung fallen.The
Die Behandlungsstationen 7 sind vorzugsweise getrennt von der Transportvorrichtung 6 am Boden abgeständert, um zu vermeiden, dass durch andere mechanische Vorgänge als das Bedrucken selbst hervorgerufene Vibrationen auf die Druckköpfe 12 übertragen werden.The
Die Erfindung gewährleistet in einfacher Weise ein optimales Druckbild ohne Beeinflussung durch Toleranzen. Dazu wird der Druck mit z. B. bis zu sieben Farben in einer einzigen Station 7b und in einer einzigen Position zu einer Zeit durchgeführt, zu der keine mechanische Transporte oder Bewegungen außer der Behälterdrehung stattfinden und somit der Druck in völliger Ruhe erfolgt. Dabei kann auch das Teilhärten (Pinning) in dieser Posititon erfolgen.The invention ensures in a simple manner an optimal print image without being influenced by tolerances. For this purpose, the pressure with z. B. up to seven colors in a single station 7b and performed in a single position at a time to which no mechanical transports or movements other than the container rotation take place and thus the pressure takes place in complete peace. Partial curing (pinning) can also take place in this position.
Bei einer alternativen Ausführungsform werden zwei bis vier Reihen der jeweiligen Träger 3 hintereinander angeordnet und das Transportband 6 im Doppel- bzw. Dreier- oder Viererschritt gefahren, um eine entsprechend erhöhte Leistung zu erreichen.In an alternative embodiment, two to four rows of the
Es ist auch möglich, mehrere Druckstationen nacheinander anzufahren und dazwischen jeweils eine Reihe zur Zwischenhärtung vorsehen. Vorzugsweise wird hierzu der Drehteller 4 des Behälters 2 auf dem Querträger 3 mit einer Winkelcodierung versehen, damit man den Nullpunkt eindeutig identifizieren kann. Es ergibt sich dann folgende Behandlungsfolge:
- Oberflächenaktivierung durch z. B. Plasma
- Druck von Farbsatz 1
- Härtung von Farbsatz 1
Druck von Farbsatz 2Härtung von Farbsatz 2
- Surface activation by z. Eg plasma
- Printing of color set 1
- Hardening of color set 1
- Print of
color set 2 - Hardening of
color set 2
Erfindungsgemäß können den Behandlungsstationen 7 zum Vorbereiten der Bedruckung, des Druckvorgangs und der Farbhärtung anschließend Stationen zum Befüllen und Verschließen der Behälter innerhalb derselben Maschine 1 nachgeschaltet werden. Damit wird die vorhandene Behälteraufnahme, die Zentrierung der Behälter, die Transporteinrichtung, die Auf- und Abgabe nicht ein 2-tes Mal notwendig und ein preisgünstiges System mit Mehrfachnutzen erreicht.According to the invention, stations for filling and closing the containers within the same machine 1 can subsequently be connected downstream of the
Bei der in
Eine Dreheinrichtung 33 weist eine Mehrzahl von Trägern 34 auf, die unterhalb der Behandlungsstationen 32 ebenfalls sternförmig um das Drehzentrum 31 angeordnet sind.A
An einer Aufgabestation 32a wird eine Mehrzahl von auf einem Zufuhrband 35 oder dgl. angeordneten Behältern 2 durch eine radial ausfahrbare Greifeinrichtung 36a ergriffen und auf einem Träger 34 abgesetzt, auf dem die Behälter 2 in gleicher Weise wie bei der oben beschriebenen ersten Ausführungsform gehalten werden. Anschließend werden die Träger 34 mittels der Dreheinrichtung 33 rotiert und unter der nächsten Behandlungsstation 32b positioniert. An dieser erfolgt eine Behandlung analog der Vorbehandlung 7a bei der ersten Ausführungsform. Anschließend werden die Behälter 2 mit dem Träger 34 drehend zur nächsten Behandlungsstation 32c und nach der dort erfolgenden Behandlung zu weiteren Behandlungsstationen 32d verschoben, bevor sie an einer Entnahmestation die ähnlich wie die Aufgabestation 32a aufgebaut ist, über eine Greifeinrichtung 36h wieder radial aus der Maschine herausgehoben und auf einem Entnahmeband 37 abgesetzt werden.At a
Die Behandlung und Halterung der Behälter in den einzelnen Behandlungsstationen erfolgt bei der Rundtaktmaschine 30 in gleicher Weise wie es oben im Hinblick auf die Längstaktmaschine 1 erläutert wurde. Der Unterschied zwischen den Ausführungsformen besteht im Wesentlichen nur in der Art und Weise des Transports zwischen den einzelnen Behandlungsstationen.The treatment and mounting of the containers in the individual treatment stations is carried out in the
Der Vorteil der erfindungsgemäßen Maschinen 1, 30 gegenüber den herkömmlichen kontinuierlich arbeitenden Rundlaufmaschinen besteht in der höheren Ausnutzung der Druckköpfe 12, da alle Druckköpfe 12 außer beim Behältertausch keine Wartezeit haben. Bei der Längstaktmaschine wird außerdem die Maschine 1 kleiner, da es keine "Leerflächen" in der Mitte des / der Karussells gibt.The advantage of the
Durch stationäre Druckköpfe 12 entsteht keine die Druckqualität beeinflussende Fliehkraft und es kann jede stationäre Tintenversorgung verwendet werden. Spezielle Drehdurchführungen entfallen. Ein weiterer Vorteil ist der Druck bei Stillstand. So kann es keine Vibrationen durch den Lauf geben, die das Druckbild beeinflussen können.
- 11
- Maschine (Längstakt)Machine (longitudinal cycle)
- 22
- Behältercontainer
- 33
- Querträgercrossbeam
- 44
- Drehtellerturntable
- 55
- Zentrierungcentering
- 66
- Transportbandconveyor belt
- 77
- Behandlungsstationtreatment station
- 7a7a
- Vorbehandlungpreparation
- 7b7b
- Druckstationprinting station
- 7c7c
- Nachbehandlungaftercare
- 88th
- Hubzylinderlifting cylinder
- 99
- Drehantriebrotary drive
- 1010
- Formatteilformat part
- 1111
- Schienerail
- 1212
- Druckkopfprinthead
- 1313
- HalteplatteRetaining plate
- 1414
- Abdeckungcover
- 1515
- UnterdruckkanalVacuum channel
- 1616
- Führungguide
- 1717
- Endplatteendplate
- 1818
- Schieberpusher
- 1919
- Zentrierbolzencentering
- 2020
- UV Strahler bzw. e-beamUV lamp or e-beam
- 3030
- Maschine (Rundtakt)Machine (rotary cycle)
- 3131
- Drehzentrumturning center
- 3232
- Behandlungsstationtreatment station
- 32a32a
- Aufgabestationfeeding station
- 32b-d32b-d
- Behandlungsstationtreatment station
- 3333
- Dreheinrichtungrotator
- 3434
- Trägercarrier
- 3535
- Zufuhrbandfeed belt
- 36a, h36a, h
- Greifeinrichtunggripper
- 3737
- Entnahmebandwithdrawal tape
Claims (15)
- A machine (1) for printing containers such as bottles or cans, with a plurality of treatment stations (7), on which printing heads (12) and if applicable further devices required for the pre-treatment and post-treatment of the containers (1) are provided, with a carrier (3) for a plurality of containers (2), which are arranged on the carrier (3) next to one another, characterized in that the carrier (3) can be transported via a conveyor belt (6) from one treatment station (7) to the next, in that in each case a plurality of treatment stations (7) are arranged in series next to one another substantially transversely to the conveyor belt (6), in that the carrier (3) is substantially arranged transversely to the conveyor belt (6) and in that the carrier (3) can be moved relative to the treatment stations (7) substantially in vertical direction.
- A machine (30) for printing containers such as bottles or cans, with a plurality of treatment stations (32), on which printing heads (12) and if applicable further devices required for the pre-treatment and post-treatment of the containers (1) are provided, with a carrier (34) for a plurality of containers (2), which are arranged on the carrier (34) next to one another, characterized in that the carrier (34) can be transported from one treatment station (32) to the next via a rotary device (33), wherein it rotates about a rotary centre (31), in that in each case a plurality of treatment stations (32) are arranged in series next to one another substantially radially to the rotary centre (31), in that the carrier (34) is substantially arranged radially to the rotary centre (31) and in that the carrier (34) can be moved relative to the treatment stations (7) in the substantially vertical direction.
- The machine according to Claim 1 or 2, characterized in that the carrier (3, 34) can be lifted off the conveyor belt (6) or the rotary device (33) towards the top.
- The machine according to any one of the preceding claims, characterized in that a plurality, in particular four to seven printing heads (12) are arranged in a ring about the container (2) in a treatment station (7b, 32).
- The machine according to claim 4, characterized in that the printing heads (12) are attached to a retaining plate (13) annularly aligned with respect to one another.
- The machine according to any one of the preceding claims, characterized in that on the carrier (3, 34) turntables (4) for receiving the containers (2) are provided, wherein the containers (2) are preferably held on the turntables (4) through low pressure or vacuum.
- The machine according to any one of the preceding claims, characterized in that along the machine (1) a fixed low pressure or vacuum channel (15) or a plurality of fixed low pressure or vacuum channels (15) is/are arranged from which the low pressure or vacuum for attracting the containers (2) by suction is fed.
- The machine according to any one of the preceding claims, characterized in that the carrier (3, 34) with the turntables (4) for receiving the containers (2) is hollow and that a low pressure or vacuum is transmitted from the one fixed low pressure or vacuum channel (15) or the plurality of fixed low pressure or vacuum channels (15) to the carrier (3, 34) by way of laterally arranged end plates (17) running in guides (16) of the low pressure or vacuum channel (15).
- The machine according to any one of the preceding claims, characterized in that a centring device (5), which in particular can be placed onto the container (2), can be lifted off, lowered and/or rotated and if required driven by means of a motor or rotary drive (9).
- The machine according to any one of the preceding claims, characterized in that above the carrier (3, 34) on the treatment stations (7, 32) motors or rotary drives (9) assigned to the containers (2) are provided, which on lifting the carrier (3) are lifted off through the containers (2) arranged on said carrier along their longitudinal axis, centre the containers (2) through their own weight and thus also transmit the rotary drive force onto the container (2).
- The machine according to any one of the preceding claims, characterized in that at least one row of treatment stations (7c, 32) comprises one or a plurality of cover/s (14), which can be closed through the turntables (4) if required.
- The machine according to any one of the preceding claims, characterized in that at least one row or a plurality of rows of treatment stations (7c, 32) have a common cover (14), which can be closed through the carrier or carriers (3).
- The machine according to any one of the preceding claims, characterized in that the carrier (3, 34) can be mechanically braced against the treatment station (7, 32) for example through an eccentric clamp.
- The machine according to any one of the preceding claims, characterized in that a plurality, in particular two to four rows of the same type of treatment stations (7, 32) are arranged one after the other.
- The machine according to any one of the preceding claims, characterized in that the treatment stations (7, 32) are fastened to the floor separately from the transport system (6, 33).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011007979A DE102011007979A1 (en) | 2011-01-05 | 2011-01-05 | Machine for printing on containers |
PCT/EP2011/074289 WO2012093077A1 (en) | 2011-01-05 | 2011-12-30 | Machine for printing on containers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2661374A1 EP2661374A1 (en) | 2013-11-13 |
EP2661374B1 true EP2661374B1 (en) | 2015-02-18 |
Family
ID=45464573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP11805886.6A Active EP2661374B1 (en) | 2011-01-05 | 2011-12-30 | Machine for printing of containers |
Country Status (4)
Country | Link |
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US (1) | US9193146B2 (en) |
EP (1) | EP2661374B1 (en) |
DE (1) | DE102011007979A1 (en) |
WO (1) | WO2012093077A1 (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102012223402A1 (en) | 2012-12-17 | 2014-06-18 | Krones Ag | Direct printing machine with cladding |
DE102013214935A1 (en) * | 2013-07-30 | 2015-02-05 | Krones Ag | Printing station and method for direct printing of containers |
FR3009520B1 (en) * | 2013-08-06 | 2015-09-04 | Dubuit Mach | ENHANCED INK JET PRINTING MACHINE |
DE102013217665A1 (en) * | 2013-09-04 | 2015-03-05 | Krones Ag | Device for printing on containers |
GB201407440D0 (en) | 2014-04-28 | 2014-06-11 | Tonejet Ltd | Printing on cylindrical objects |
DE102014226573A1 (en) * | 2014-12-19 | 2016-06-23 | Krones Ag | Direct printing process |
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2011
- 2011-01-05 DE DE102011007979A patent/DE102011007979A1/en not_active Withdrawn
- 2011-12-30 US US13/977,364 patent/US9193146B2/en active Active
- 2011-12-30 EP EP11805886.6A patent/EP2661374B1/en active Active
- 2011-12-30 WO PCT/EP2011/074289 patent/WO2012093077A1/en active Application Filing
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US9193146B2 (en) | 2015-11-24 |
DE102011007979A1 (en) | 2012-07-05 |
WO2012093077A1 (en) | 2012-07-12 |
US20130269551A1 (en) | 2013-10-17 |
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