EP3919397A1 - Segmented vacuum transfer cylinder - Google Patents

Abstract

The invention relates to a labeling unit (1) for applying labels to containers (3), comprising at least one unwinding device (4) for a label tape (2), a cutting rotor (5) for cutting the label tape into individual labels (20a, 20b, 20c ) and a vacuum transfer cylinder (6) for transferring the labels (20a, 20b, 20c) to the container, and characterized in that the vacuum transfer cylinder (6) comprises a plurality of interchangeable exchangeable segments (6a, 6b, 6c, 6d) on their outer contour surfaces the labels can be transported, the interchangeable segments (6a, 6b, 6c, 6d) being arranged between strips (8a, 8b, 8c, 8d) firmly connected to the vacuum transfer cylinder (6), and wherein the strips (8a, 8b, 8c, 8d) are designed as cutting surfaces for interaction with the cutting rotor (5) for cutting the label tape (2).

Description

State of the art

The invention relates to a labeling unit of the type specified in the preamble of claim 1 and a labeling machine of the type specified in the preamble of claim 15.

Labeling units are usually used to apply labels to containers or packaging in order to label them according to their content.

Such a labeling unit is for example in DE 202005002793 U1 described. Here, a label tape is unrolled from a roll and fed to a cutting unit via a tape buffer and various guide rollers. In the cutting unit, the label tape is transported on a vacuum roller and cut into individual labels with a cutting rotor that interacts with it. The individual labels are then transferred from the vacuum roller to a vacuum transfer cylinder, where they are glued with a hot glue unit at the beginning and end of the label and attached to the containers. The containers are moved past the labeling unit in container receptacles, for example by means of a carousel, and the labels are wound onto the container surface and glued by rotating the container.

With such labeling units it can occasionally happen that the labels are damaged during the transfer from the cutting unit to the vacuum transfer cylinder, which can possibly result in quality fluctuations. Furthermore, when applying glue using a hot glue plant, it can happen that in rare cases vapors of the hot glue escape and thus sensitive products can be impaired.

In addition, labeling units are known which use pre-glued labels.

Here, for example, the label tape already has pre-assembled strips of glue on the rear side opposite the print side, for example at the beginning or end of the label. As a result, the label tape is already provided with glue and passed through the entire labeling unit.

With all known labeling units, problems, quality fluctuations and faults in the labeling process can disadvantageously occur when changing products and / or changing the label format.

For example, it is possible that glue from label strips or glue from individual labels of different formats collects on the different parts of the labeling unit, e.g. rollers or cylinders, which can lead to malfunctions.

In addition, glue can be removed in the cutting unit, for example, which then reduces the quality of the subsequent labels.

For example, the wear and tear of non-stick coatings on rolls or cylinders, due to the high pressure applied to hold and convey the labels and to pull or warp the labels in a certain predetermined pitch, can cause malfunctions in the labeling unit, e.g. label tapes slipping, label tapes jam, Tearing of label tapes and the like.

The pulling or warping of the labels in a certain predetermined pitch is to be understood to mean bringing labels at a certain predetermined distance between two consecutive labels, for example due to the distance between two containers to be labeled.

task

It is therefore the object of the invention to improve a labeling unit or a labeling machine, in particular with regard to the efficiency, robustness and susceptibility of the labeling unit or the labeling machine to failure, with regard to the optimization of the possible uses of the labeling unit or the labeling machine, and with regard to the quality and accuracy of the labeling process .

solution

This is achieved according to the invention by a labeling unit according to claim 1 and a labeling machine according to claim 15. Advantageous embodiments and developments are the subject of the subclaims.

For example, a labeling unit described herein for applying labels to containers can comprise at least one unwinding device for a label tape, at least one cutting rotor for cutting the label tape into individual labels and at least one vacuum transfer cylinder for transferring the labels to the container.

Said exemplary vacuum transfer cylinder can include a plurality of exchangeable exchangeable segments on the outer contour surfaces of which the labels can be transported. The vacuum transfer cylinder can therefore be understood as a segmented cylinder.

The interchangeable segments can be arranged between strips firmly connected to the vacuum transfer cylinder, wherein the strips can be designed as cutting surfaces for interacting with the cutting rotor for cutting the label tape.

The strips can thus serve, for example, as counter-elements for cutting the cutting rotor, i.e. the strips can come into direct contact with the cutting rotor when the label tape or the labels are being cut.

The strips can extend over the entire height of the vacuum transfer cylinder and be aligned parallel to the longitudinal axis of the vacuum transfer cylinder.

The strips can be designed with a planar, convex or notch-shaped counter surface or outer surface which interacts with the cutting rotor during cutting. The counter surface or outer surface or outer contour surface of the strips can be directed radially outward on the vacuum transfer cylinder.

The labeling unit described herein offers numerous advantages. Instead of cutting the label tape into individual labels in a separate cutting unit, the cutting can take place directly on the vacuum transfer cylinder, which can then transfer the labels directly to a container and apply them.

By cutting immediately before transferring them to the container, the transport path of the cut labels can be kept as short as possible and transferring them to other rolls or cylinders can be dispensed with.

In this way, for example, a malfunction when transferring individual labels between the cutting unit and the vacuum transfer cylinder can be avoided.

Said strips, which can be designed as cutting surfaces to interact with the cutting rotor for cutting the label tape and can be designed, for example, as hard metal strips, in particular, enable the label tape or labels to be cut precisely in order to provide individual labels of high quality. In particular, hard metal strips can be made of hardened steel in order to increase the cutting precision and to reduce material wear.

The exemplary strips, which can be designed as cutting surfaces for interacting with the cutting rotor for cutting the label tape, can be connected directly or indirectly to the vacuum transfer cylinder via possible exemplary holding elements. For example, the possible mounting elements can be an integral part of the vacuum transfer cylinder. For example, the holding elements can be firmly connected to an inner core or an inner support frame or a skeletal inner structure of the vacuum transfer cylinder or can be an integral part of the exemplary core of the vacuum transfer cylinder. This possible exemplary inner core structure of the vacuum transfer cylinder can also include cavities for accommodating components for supplying the vacuum transfer cylinder with negative pressure or compressed air or for accommodating other structural components, such as movement mechanisms.

A fixed connection or rigid connection can be understood here to mean, for example, screwing, clamping or gluing or the like.

The holding elements can for example have a slot-like groove or recess which can be aligned parallel to the longitudinal axis of the vacuum transfer cylinder to accommodate the strips which can serve as cutting surfaces to interact with the cutting rotor to cut the label tape.

The mounting elements can also be designed as frame mountings, for example, in a material-saving manner.

The holding elements can have outer contour surfaces openings, in particular vacuum openings, via which a negative pressure can be applied. For example, the label tape can be better fixed on the bar, which can serve as a base or counter surface to the cutting edge of the cutting rotor during the cutting process, and the label tape can be cut more precisely without slipping, which ensures a better quality of the labels in terms of their geometry .

For example, at least some of the openings or bores in the outer contour surfaces of the holding elements can also be designed to accommodate fastening means, e.g. screws or pins, in order to be able to fix said strips serving as cutting surfaces on / in the holding elements.

The vacuum transfer cylinder can be designed to be rotatable. The vacuum transfer cylinder can in particular be designed to transfer the labels to the containers immediately after they have been cut.

The vacuum transfer cylinder or the interchangeable segments of the vacuum transfer cylinder can be equipped with vacuum openings in order to suck up the labels for transport.

The vacuum transfer cylinder can be connected to a vacuum pump for vacuum supply, for the selective and targeted application of negative pressure to some or all of the vacuum openings of the vacuum transfer cylinder located on the outside, i.e. for example both openings on the outer contour surface of the interchangeable segments and possible openings in the mounting elements.

The interchangeable segments of the vacuum transfer cylinder can have a suction bar which can divide the outer contour surfaces of the interchangeable segments into at least two areas.

The suction bar can also have vacuum openings via which a negative pressure can be applied selectively and in a targeted manner. For this purpose, the vacuum openings can be connected to the said exemplary vacuum pump of the vacuum transfer cylinder. The suction strips can therefore be understood as vacuum strips or vacuum suction strips.

These exemplary suction bar (s) can in particular serve to receive the label tape or labels and to transfer / apply the labels to an object to be labeled or a container to be labeled.

In particular, a suction bar of an interchangeable segment of the vacuum transfer cylinder can be arranged in such a way that it can divide the outer contour surface of an interchangeable segment into a first area whose radial peripheral circumference corresponds to the length of a label and in a second area whose radial peripheral circumference corresponds to a predetermined spacing between two labels that can be attached to two different containers.

The suction bar can be understood as an initial suction bar which sucks in the beginning of the label tape or the beginning of the label. In other words, the suction strips can each be assigned to the / a start area of a label or a / the start area of a label tape.

The strips serving as cutting surfaces or the strips serving as cutting surfaces and / or their holding elements can be assigned to the / one end region of a label

The exemplary geometry and division of the interchangeable segments of the vacuum transfer cylinder, which are limited, for example, by the strips serving as cutting surfaces or by the mounting elements of the strips serving as cutting surfaces, and in which a suction bar divides the interchangeable segments into at least two areas, among other things make it easier to bring the labels into a desired division or to pull or warp them into a desired division.

As mentioned, the pulling or warping of the labels in a certain predetermined pitch can be understood to mean bringing labels at a certain predetermined distance between two consecutive labels, for example due to the distance between two containers to be labeled.

When the labels are pulled or warped on the vacuum transfer cylinder, the cut label with a non-glued side can slide on the vacuum transfer cylinder that is subjected to negative pressure, or the vacuum transfer cylinder can turn away from under a label that is held firmly, e.g. by the cutting rotor, until the desired division is achieved will. For example, when picking up the labels from the vacuum transfer cylinder, an additional switchable roller can optionally be pressed against a label web conveyor roller in order to hold the label or the label web temporarily so that the vacuum transfer cylinder has rotated under the label or under the label web by a desired pitch.

To make it easier for the label or the label tape to slide, the interchangeable segments of the vacuum transfer cylinder can be provided with a non-stick coating.

The exemplary suction strips can have at least one outer contour surface with an outer diameter which can be larger than the outer diameter of the interchangeable segments and / or can be larger than the outer diameter of the mounting elements and / or can be larger than the outer diameter of the strips which are designed as cutting surfaces.

In particular, an exemplary suction bar can have a bulge or bulge or elevation or a projection, for example a step-shaped or step-shaped projection.

This can make it easier, for example, to label indented areas of containers.

A retracted area of a container can in particular be understood to mean a container area of the outer surface of the container which has a smaller outer diameter than adjacent outer areas of the container.

The exemplary suction strips of the exemplary interchangeable segments of the vacuum transfer cylinder described herein can be designed to be movable or displaceable and, in particular, be configured to perform a radial movement, or configured to be interconnected or displaced or displaced between different radial working positions or working positions.

For example, the exemplary suction strips can have a first radial working position for picking up and transferring labels and a second radial working position, wherein the radius of the second radial working position can be smaller than the radius of the first radial working position. Said exemplary second radial working position can be understood as an evasive position, for example to avoid collisions of the suction strips with parts of the cutting rotor, parts of a gluing device or other components of the labeling unit. Said first radial working position can, for example, be understood and defined as the radial starting position of the suction strips.

Said exemplary possible radial movement of the suction strips can include, for example, retraction or retraction of the suction strips to radial positions in which the outer contour surface (s) of the suction strips has / have a radial distance from the longitudinal axis of the vacuum transfer cylinder that is smaller, equal to or only slightly larger than, for example radial spacing of the outer contour surfaces of the interchangeable segments, whereby, for example, smaller or larger can be understood to mean a relative spacing range of up to 5 mm or up to 10 mm or more.

Likewise, the exemplary possible radial movement of the suction strips can include an extension or pulling out of the suction strips to radial positions in which the outer contour surface (s) of the suction strips is / have a radial distance from the longitudinal axis of the vacuum transfer cylinder which is greater than, for example, the radial distance between the outer contour surfaces of the interchangeable segments where, for example, larger can be understood to mean a relative distance range of up to 2 mm or up to 10 mm or more. The extension or pulling out of the suction strips can in particular be understood to mean that the suction strips can be moved from said exemplary evasive position into said exemplary starting position.

The exemplary possible extension, or said exemplary radial starting position, of the suction strips can facilitate the labeling of said exemplary retracted areas of containers since better contact of the suction strip with a container to be labeled or better contact of a label transported by the suction strip with a to labeling container can be achieved.

The exemplary possible retraction of the suction strips can, however, as already mentioned, among other things, be used to prevent possible collisions with other components, e.g. a collision with the cutting rotor and / or a collision with a possible gluing component, in certain working areas of the labeling unit.

An exemplary labeling unit can include, for example, at least one control cam mechanism or a sliding mechanism or a switching mechanism for controlling the movement of the suction strips, e.g. comprising a switching cam or control cam that interacts with a switching roller.

The exemplary interchangeable segments of the labeling unit can cover the entire outer diameter of the vacuum transfer cylinder with their outer contour surfaces, whereby the outer diameter of the vacuum transfer cylinder can, for example, be in a size range of about 400 - 600 mm, e.g. about 500 mm.

The full circumferential cover can make it easier to pull or warp the labels or the label tape over the outer contour surface of the vacuum transfer cylinder so that the labels can more easily be brought into a position and position intended for labeling.

A full coverage of the outer diameter of the vacuum transfer cylinder or the outer contour surface of the vacuum transfer cylinder by the exemplary interchangeable segments can be understood to mean that the area including the outer contour surfaces of the interchangeable segments together with the outer contour surfaces of the strips that serve as cutting surfaces and together with possible outer contour surfaces of the holders of the strips, cover the outer contour surface of the vacuum transfer cylinder completely or almost completely.

For example, a vacuum transfer cylinder can include two, three, four, six or more exchangeable segments.

For example, if there is an even number of interchangeable segments, all of the interchangeable segments can have the same shape, e.g. a pie-like shape or pie-end-like shape, of the same size, in particular with the same volume. In the case of an odd number of interchangeable segments, on the other hand, the interchangeable segments can differ in shape and / or size, in particular in volume.

Depending on the division of the vacuum transfer cylinder into interchangeable segments, the vacuum transfer cylinder has a correspondingly different number of strips that serve as cutting surfaces and, for example, a correspondingly different number of possible holders for the strips.

Other divisions of the vacuum transfer cylinder with a different number of interchangeable segments are also possible.

The exemplary vacuum transfer cylinder described herein can therefore be understood as a segmented drafting, cutting and transfer cylinder.

The segmentation of the vacuum transfer cylinder by the exemplary interchangeable segments described here, among other things, facilitates the conversion of the labeling unit to different label types and label formats, as well as simplifies the maintenance of the vacuum transfer cylinder. As a result, the downtime of the labeling unit or the labeling machine can be reduced.

In particular, for example, the changeover to new label formats can take place independently of the vacuum transfer cylinder or independently of the basic structure of the vacuum transfer cylinder, since only the exchangeable segments have to be exchanged.

The exchange of the individual, lighter and more manageable exchangeable segments can be done more easily and quickly than, for example, exchanging a complete and heavier whole vacuum transfer cylinder of the conventional type.

The segmented construction of the vacuum transfer cylinder described here also simplifies the repair of damaged vacuum transfer cylinder parts, since, for example, defective exchangeable segments can be exchanged quickly and easily.

The segmented design can also save weight and space. The easy removal option of the interchangeable segments can also facilitate access to inner parts of the vacuum transfer cylinder and / or access to other parts of the labeling unit or other parts of the labeling machine, for example for maintenance work.

The cutting rotor of an exemplary labeling unit can be designed to be rotatable about an axis. The cutting rotor can comprise at least one sheath which is arranged on the circumference and which can interact for cutting with the strips of the vacuum transfer cylinder designed as cutting surfaces.

The exemplary cutting edges can each be formed on radially extending arms of the cutting rotor. The cutting rotor can comprise two arms, each with a cutting edge, which are oriented outward in opposite directions to the axis of rotation of the cutting rotor.

The cutting rotor can be connected to a direct drive for the drive in order to regulate the rotational position and / or the rotational speed of the cutting rotor. As a result, the rotational movement of the cutting rotor can be regulated independently of the vacuum transfer cylinder in such a way that the cutting edges correspond exactly in position and / or speed to the strips of the vacuum transfer cylinder designed as cutting surfaces and / or move at the speed of the label tape.

This results in a particularly precise cut of the label tape into individual labels. Direct drive can mean that the drive is mechanically independent of the drive of the vacuum transfer cylinder.

The drive of the vacuum transfer cylinder can be connected to a direct drive in order to regulate the rotational position and / or the rotational speed of the vacuum transfer cylinder. This makes it possible to have different label lengths on the vacuum transfer cylinder cut and regulate its rotary movements accordingly. Direct drive can mean that the drive is mechanically independent of the cutting rotor and / or of the drive rollers for conveying the label strip.

The direct drive of the cutting rotor and / or of the vacuum transfer cylinder can be a servomotor which comprises a rotary encoder. By designing the direct drive as a servomotor, the direct drive can be precisely controlled with high torques. Servo motor can mean that this is a brushless electric motor whose drive shaft is coupled to the rotary encoder. The rotary encoder can be designed to detect the rotary position and / or the rotary speed of the servomotor.

The exemplary labeling unit can also include, for example, a control unit which can be designed to control a rotational position and / or rotational speed of the cutting rotor and / or the vacuum transfer cylinder.

In addition, the exemplary control unit can be designed to regulate a possible movement of the exemplary suction strips.

For example, the control unit can be configured in particular to retract exemplary suction strips radially in a predetermined range of rotary positions of the vacuum transfer cylinder, for example in an area in the vicinity of the cutting rotor and / or in an area in the vicinity of a possible gluing device.

The exemplary control unit can, among other things, also regulate and control possible control cams, which can alternatively or additionally control the radial stroke of the squeegee bars and, for example, optionally bring control cams into contact with possible control rollers of the squeegee bars.

An exemplary control unit can in particular be understood to mean a digital computer-controlled control unit or digital control electronics.

The exemplary labeling unit is described herein in particular on the basis of pre-glued labels, but can in principle also be used for non-pre-glued labels. The precise cut and the subsequent transfer of the individual labels to the containers results in a particularly consistent label quality. When processing labels that have not been pre-glued, a gluing unit for gluing the labels with hot or cold glue can be arranged on the vacuum transfer cylinder.

For the optional possible use of non-pre-glued labels, the exemplary labeling unit can have a movable gluing device for gluing labels on the vacuum transfer cylinder, which can optionally or if necessary glue labels on the vacuum transfer cylinder and, for example, can be moved or moved accordingly.

The mentioned possible exemplary control unit can also be designed to control the movement of the possible gluing device or a possible gluing process.

The labeling unit can be arranged in a beverage processing plant, for example. The labeling unit can be arranged downstream of a filling system for filling a product into the container.

The containers can be provided, for example, to hold beverages, hygiene articles, pastes, chemical, biological and / or pharmaceutical products. The containers can be, for example, plastic bottles, glass bottles, tubes and / or cans.

The labels can be, for example, labels that are applied with an adhesive (such as glue). The labels can be blanks made of paper or plastic, which in particular include an imprint that designates, describes and / or advertises the contents of the container. The label tape can be pre-glued. Pre-glued can mean that the label tape is provided with an imprint on one side and at least partially with a layer of glue on the other side. The glue layer can be formed with glue areas corresponding to the printing. The label tape can be provided with two strips of glue per label, which are applied at the beginning and end of the label. The label tape can already be pre-glued and wound onto rolls in an unwinding device.

An exemplary labeling machine can comprise a conveyor with container receptacles for transporting the containers and a labeling unit which can have the features described herein individually or in any combination.

The labeling machine can be arranged in a beverage processing plant. The labeling machine can, for example, be arranged downstream of a device for filling a product into the container.

The labeling machine is described here primarily on the basis of pre-glued labels, but can in principle also be used for non-pre-glued labels.

The conveyor can comprise a linear conveyor and / or a carousel. The conveyor can be designed with container receptacles for guiding the containers past the labeling unit. The container receptacle can be designed to be rotatable, optionally in order to rotate the container when the labels are applied by the labeling unit.

• Fig.1 : Beispielhaftes Etikettieraggregat in schematischer Draufsicht
• Fig. 2 : Beispielhafter Vakuumtransferzylinder in erster Ansicht
• Fig. 3a : Beispielhafter Vakuumtransferzylinder in zweiter Ansicht
• Fig. 3b : Beispielhaftes Wechselsegment in erster Ansicht
• Fig. 3c : Beispielhaftes Wechselsegment in zweiter Ansicht
• Fig. 4a : Beispielhafte Saugleiste
• Fig. 4b : Beispielhaftes Wechselsegment mit Behälter

Further exemplary aspects of the invention are explained below with reference to the exemplary embodiment shown in the figures. It shows:

• Fig.1 : Exemplary labeling unit in a schematic top view
• Fig. 2 : Exemplary vacuum transfer cylinder in first view
• Fig. 3a : Exemplary vacuum transfer cylinder in second view
• Figure 3b : Example of a changing segment in the first view
• Figure 3c : Example of a change segment in the second view
• Figure 4a : Exemplary squeegee
• Figure 4b : Exemplary interchangeable segment with container

the Fig. 1 represents an exemplary and schematic plan view of a possible labeling unit 1, which may have some or all of the components and features described above by way of example.

The label tape 2, for example, can have a label print on its front side, which is arranged sequentially one behind the other and can be repeated for each label 20a, 20b, 20c. Corresponding to the label print, a strip of glue can be applied to the back of the label tape, e.g. at the beginning and end of the label. The label tape can be rolled up and made available on an exemplary label tape storage roll 16a, already pre-assembled with imprint and glue strips.

The exemplary pre-glued label tape 2 can thus be unrolled from the label tape storage roll 16a, fed to the vacuum transfer cylinder 6 and cut into individual labels 20a, 20b, 20c there by means of the cutting rotor 5.

The individual labels 20a, 20b, 20c can then be sucked in by the vacuum transfer cylinder 6 during further transport and applied to the container 3 by the vacuum transfer cylinder 6, e.g. glued to the container 3 by means of pre-glued strips of glue.

The exemplary straight vacuum transfer cylinder 6 with a circular base area comprises a plurality of exchangeable exchangeable segments 6a, 6b, 6c, 6d on the outer contour surfaces of which the labels 20a, 20b, 20c can be transported.

The illustrated even division or segmentation of the vacuum transfer cylinder 6 into four interchangeable interchangeable segments 6a, 6b, 6c, 6d, which are all equally dimensioned, is only exemplary and other divisions, e.g. with different numbers of interchangeable segments and / or with differently dimensioned interchangeable segments, are also possible.

The exemplary interchangeable segments 6a, 6b, 6c, 6d are arranged, for example, between the strips 8a, 8b, 8c, 8d that are fixedly connected to the vacuum transfer cylinder 6.

The strips 8a, 8b, 8c, 8d can be designed as cutting surfaces for cooperation with the exemplary cutting rotor 5 for cutting the label tape 2 and can be designed, for example, as hard metal strips.

In the example shown, the label strip 2 is cut by the cutting rotor 5, for example by interacting with the bar 8a as a counter element and cutting surface on the vacuum transfer cylinder 6, and the exemplary label 20a is produced.

The label strip 2 or the labels can be attached to and onto the vacuum transfer cylinder 6 via exemplary suction strips 7a, 7b, 7c, 7d of the interchangeable segments 6a, 6b, 6c, 6d, which have openings, in particular vacuum openings, at which a negative pressure can be applied or be sucked on and onto the interchangeable segments 6a, 6b, 6c, 6d.

The interchangeable segments 6a, 6b, 6c, 6d can also have corresponding vacuum openings in their outer contour surfaces for the selective and targeted application of negative pressure in order to suck in and hold the labels for transport.

By means of an exemplary targeted coordination of the movements of the cutting rotor 5 and / or the conveyor roller (s) 12 and the vacuum transfer cylinder 6, the cut labels 20a, 20b, 20c can be spaced at a desired pitch, ie at a desired spacing 19a, 19b between two consecutive labels, brought or pulled or warped.

For example, it is conceivable that after a label 20a has been cut from the label tape 2 on a bar 8a of an interchangeable segment 6a, the label tape 2 is held until the vacuum transfer cylinder 6 has rotated further by an angle of rotation below the label tape 2 of a desired pitch 19a, 19b in order to be able to be sucked again by a suction bar 7d of a subsequent changeable segment 6d onto the vacuum transfer cylinder 6 or onto and onto the subsequent changeable segment 6d in order to be able to cut the next label from the label tape 2 on the bar 8d of the subsequent changeable segment 6d.

For this purpose, the suction strips 7a, 7b, 7c, 7d can be arranged in such a way that they each divide the outer contour surface of the respective interchangeable segment 6a, 6b, 6c, 6d into at least two areas, for example, as illustrated on the interchangeable segment 6a, in a first area 6a1, its radial one peripheral circumference corresponds to the length of a label 20a and in a second region 6a2 whose radial peripheral circumference corresponds to a predetermined spacing 19a, 19b between two labels 20a, 20b which are to be applied to two different containers.

This exemplary suction strip arrangement can, among other things, increase the accuracy with which labels can be applied to different containers. In addition, the easy interchangeability of the interchangeable segments 6a, 6b, 6c, 6d makes it easier to convert the labeling unit to other label types or other label formats or other container spacings, since, for example, other interchangeable segments with different suction bar arrangements are quick and easy to use for other respective label types or label formats or other container distances can be optimized, can be used in the labeling unit.

The labels can slide over the outer contour surface of the vacuum transfer cylinder 6 or over the outer contour surface of the interchangeable segments 6a, 6b, 6c, 6d with their side facing the vacuum transfer cylinder 6, which can be glued and printed.

Possible holding elements 9a, 9b, 9c, 9d of the strips 8a, 8b, 8c, 8d serving as cutting surfaces are also shown by way of example.

The holding elements 9a, 9b, 9c, 9d can be firmly connected to the vacuum transfer cylinder 6 or to the core or to a support frame 11 of the vacuum transfer cylinder.

In addition, as already mentioned, the mounting elements 9a, 9b, 9c, 9d can also have outer contour surfaces with openings via which a negative pressure can be applied in order, for example, to pull the label tape onto a strip 8a, 8b, 8c, 8d during the cutting process and temporarily fixed so that a more precise cutting process can be made possible.

The core or the supporting frame 11 of the vacuum transfer cylinder 6 can be understood as a skeleton of the vacuum transfer cylinder 6.

The illustrated radial structure of the core or the supporting frame 11 of the vacuum transfer cylinder 6 about the axis of rotation 22 is only an example.

The exemplary suction strips 7a, 7b, 7c, 7d can have at least one outer contour surface with an outer diameter which can be larger than the outer diameter of the interchangeable segments and / or can be larger than the outer diameter of the mounting elements and / or can be larger than the outer diameter of the strips 8a , 8b, 8c, 8d.

In particular, an exemplary suction strip can have a bulge or bulge or elevation or a projection, for example a step-shaped or step-shaped projection. For the sake of clarity, this is in the Fig.1 but not shown.

The exemplary suction strips 7a, 7b, 7c, 7d of the exemplary interchangeable segments of the vacuum transfer cylinder 6 described herein can be designed to be movable or displaceable and, in particular, can be configured to perform a radial movement with respect to the axis of rotation 22 of the vacuum transfer cylinder 6.

Said exemplary possible radial movement of the suction strips 7a, 7b, 7c, 7d can include, for example, retraction or retraction of the suction strips to radial positions in which the outer contour surface (s) of the suction strips is / have a radial distance from the longitudinal axis or axis of rotation 22 of the vacuum transfer cylinder 6 which is smaller, equal to or only slightly larger than, for example, the radial distance between the outer contour surfaces of the interchangeable segments 6a, 6b, 6c, 6d.

As mentioned above, the suction strips 7a, 7b, 7c, 7d can thus be retracted or retracted to a radial evasive position.

The exemplary possible radial movement of the suction strips can also include extending or pulling out the suction strips to radial positions in which the outer contour surface (s) of the suction strips 7a, 7b, 7c, 7d is at a radial distance from the longitudinal axis or from the axis of rotation 22 of the vacuum transfer cylinder 6 / that is greater than, for example, the radial distance between the outer contour surfaces of the interchangeable segments 6a, 6b, 6c, 6d.

As mentioned above, the suction strips 7a, 7b, 7c, 7d can thus have a radial starting position and extending or pulling out the suction strips can be understood as moving the suction strips 7a, 7b, 7c, 7d from a radial evasive position to a radial starting position, for example will.

The exemplary possible extension of the suction strips 7a, 7b, 7c, 7d or the possible radial starting position can facilitate the labeling of the containers, in particular the labeling of said exemplary retracted areas of containers, since better contact of the suction strips or better contact of the Labels transported to the suction strips can be reached with the containers.

The exemplary possible retraction of the suction strips into an evasive position can be used, among other things, to prevent possible collisions with other components, e.g. with the cutting rotor and / or a possible gluing component (not shown), in certain working areas of the labeling unit.

In the example shown, the suction strips 7a, 7b, 7c, 7d can be retracted in the area marked with the dashed arrow 21, an exemplary angular range of rotational positions of the vacuum transfer cylinder 6, in such a way that a collision with the conveyor roller or conveyor roller 12 and / or can be prevented with the cutting rotor 5. The suction strips 7a, 7b, 7c, 7d can therefore be located in this area 21 in the said exemplary radial evasive position and outside the area 21, for example, in the said exemplary radial starting position.

The exemplary control unit 18 of the labeling unit can be configured to control the rotational position and / or rotational speed of the cutting rotor 5 and / or the vacuum transfer cylinder 6 and also optionally the possible exemplary movements of the suction strips 7a, 7b, 7c, 7d.

The exemplary control unit 18 can also be configured to selectively and specifically act on openings or vacuum openings in the outer contour surfaces of the interchangeable segments 6a, 6b, 6c, 6d and / or in the outer contour surfaces of the suction strips 7a, 7b, 7c, 7d and / or in the outer contour surfaces to control and regulate the mounting elements 9a, 9b, 9c, 9d with negative pressure or pressure.

An exemplary guide or an exemplary run of the label tape 2 within the labeling unit 1 can take place as follows.

The label tape 2 can first be unrolled from the label tape storage roll 16a via the exemplary unwinding device 4 and fed to a splicing device 17. In the event that the end is reached, it can be glued together with the beginning of a further label tape of a second label tape storage roll 16b, thereby avoiding an interruption in production when changing rolls.

The label strip 2 can then run through a possible label strip buffer 15, e.g. to compensate for fluctuations in the unwinding of the label strip 2. Via a possible guide 14 and the two exemplary rollers 13 and 12, the label tape 2 can then be fed to the vacuum transfer cylinder 6 in such a way that the side provided, for example, with an imprint is directed towards the outer contour surface of the vacuum transfer cylinder 6 and the side used for attachment to the container 3 of the label tape 2 is directed outwards.

After the exemplary cutting process of the label tape 2 on one bar 8a, 8b, 8c, 8d of the vacuum transfer cylinder 6 as described above and the transport of the cut labels 20a, 20b, 20c on the vacuum transfer cylinder 6 to the container 3 to be labeled.

There, for example, a first strip of glue at the beginning of the label can initially be pressed against the container 3 and the container can be rotated around its longitudinal axis to wind the label 20c until the end of the label slightly overlaps the beginning of the label (for example 5mm). With an exemplary second strip of glue at the end of the label, the end of the label can be glued to the outside of the beginning of the label.

As mentioned above, instead of pre-glued tape or labels, non-pre-glued tape or labels can also be used. For this purpose, the labeling unit 1 can optionally have a gluing station (not shown) which applies glue a label tape or can be applied to a label, for example before or after the cutting process on the vacuum transfer cylinder 6.

In addition, the Fig.1 it can be seen that all of the elements described above (except for the container 3) can be arranged on a frame 10 and, for example, can be moved in a modular manner relative to a carousel or another device.

It should also be mentioned that the cutting rotor 5 can be connected to a direct drive (not shown here) which can precisely regulate the rotational position and the rotational speed of the cutting rotor 5 about its axis of rotation.

During the cutting process, it can thereby be ensured that the cutting edge of the cutting rotor 5 hits a bar of the vacuum transfer cylinder at a predefined position and that both have the same speed with respect to one another.

The speed can correspond to the tape speed of the label tape 2. This ensures a more precise cut.

In addition, the vacuum transfer cylinder 6 can also be connected to a direct drive (not shown here) and which is designed to regulate the rotational position and the rotational speed of the vacuum transfer cylinder 6.

As a result, the rotary movement of the vacuum transfer cylinder 6 can be adapted, for example, to the length of the label, the circumference of the container and the work cycle of a transport carousel (not shown here). The direct drives of the cutting rotor 5 and of the vacuum transfer cylinder 6 can be designed as servomotors.

The mentioned exemplary control unit 18 can be designed as digital control electronics, which can evaluate the position signals from the direct drives of the cutting rotor 5 and the vacuum transfer cylinder 6 and adjust the power supplies of the direct drives accordingly in such a way that the vacuum transfer cylinder 6 and the cutting rotor 5 exert the desired rotary movement .

In addition, the control unit 9 can be connected to an electronic sort management database in order to be able to call up the control parameters for the direct drives there according to the container type of the container 3.

For the sake of completeness, it should be noted that the arrows not provided with reference symbols in FIG Fig.1 represent the conveying and running direction of the label tape or the labels as well as the direction of rotation of the vacuum cylinder 5, the container 3 and the label tape storage rolls 16a, 16b.

the Fig. 2 shows, by way of example, part of the labeling unit 1 of FIG Fig.1 in a schematic spatial view comprising the vacuum transfer cylinder 6 with axis of rotation 22, the cutting rotor 5 and the conveyor roller / conveyor roller 12 and a part 27 of the frame 11 on which the labeling unit is mounted.

For the sake of clarity, neither a label strip nor individual labels are shown.

The exemplary interchangeable segments 6a, 6b, 6c, 6d, which are arranged between the exemplary mounting elements 9a, 9b, 9c, 9d, as well as the strips 8a, 8b, 8c, 8d received by the mounting elements 9a, 9b, 9c, 9d, can be seen can serve as a cut surface for cutting a / the label tape on the vacuum transfer cylinder 6.

It can also be seen that the exemplary holding elements 9a, 9b, 9c, 9d can be connected to an exemplary core 11 of the vacuum transfer cylinder 6.

The exemplary suction strips 7a, 7b, 7c, 7d of the interchangeable segments 6a, 6b, 6c, 6d can also be seen.

The exemplary perspective illustration of Fig. 2 It also enables the exemplary openings or exemplary vacuum openings 24, 25, 26 to be recognized in the outer contour surfaces of the interchangeable segments, the suction strips and the mounting elements.

For reasons of perspective, however, only the openings 26 in the interchangeable segments 6a and 6b, as well as the openings 24 in the mounting element 9b and the openings 25 in the suction strips 7a and 7b can be seen.

As mentioned above, some of the openings or bores 24 of the mounting elements 9a, 9b, 9c, 9d can be designed to receive fastening means, e.g. screws or pins, in order to be able to fix the strips 8a, 8b, 8c, 8d serving as cutting surfaces.

It can also be seen that behind the interchangeable segments 6a, 6b, 6c, 6d, ie inside the vacuum transfer cylinder 6, i.e. between the axis of rotation 22 or between the skeleton 11 and the interchangeable segments 6a, 6b, 6c, 6d, the vacuum transfer cylinder 6 has cavities 28a, 28b, 28c, 28d, which can serve, for example, in particular to accommodate vacuum channels or compressed air channels, for supplying said openings 24, 25, 26 with negative pressure or compressed air.

Likewise, these exemplary cavities 28a, 28b, 28c, 28d can, for example, provide space for receiving movement and control mechanisms, for example for movement and control mechanisms for squeegees, such as a control cam mechanism.

The cavities 28a, 28b, 28c, 28d can communicate with one another and form a common cavity 28.

the Fig. 3a shows the vacuum cylinder 6 as an example Fig. 2 or off Fig.1 from a different perspective, rotated clockwise by about 180 °, and with an interchangeable segment being removed from the vacuum cylinder 6.

For better orientation and clarity, the reference numbers for the frame part 27 of the labeling unit 1, the cutting rotor 5, the conveyor roller 12, the axis of rotation 22 of the vacuum cylinder 6, the skeleton 11 of the vacuum cylinder 6, the interchangeable segments 6a, 6b and 6d, the suction bar have been used 7b, the strips 8c, 8d and the mounting elements 9c, 9d are shown.

The missing or removed interchangeable segment 6c is in the Fig. 3b and Fig.3c shown in two different views.

The exemplary removal of the interchangeable segment 6c provides an exemplary insight into the interior of the vacuum cylinder 6. It can be seen by way of example that the core or the skeleton or the inner support structure 11 of the vacuum cylinder 6, the axis of rotation 22 can have a dumbbell-like shape and the mounting elements of the strips, as can be seen in the example of mounting element 9d, a frame 35 can have for establishing a permanent connection with the inner support frame 11 of the vacuum cylinder 6.

It can also be seen that the interior of the vacuum cylinder 6 can essentially have a cavity 28 or a plurality of cavities, the reference numeral 28c identifying an exemplary cavity that lies between the axis of rotation 22 and the missing change segment 6c.

The reference numerals 30b1, 30b2 denote exemplary fastening elements, e.g. screw connections, with which, for example, the interchangeable segment 6b can be connected to the vacuum cylinder 6 or to the inner support frame 11 of the vacuum cylinder 6.

the Figure 3b shows, by way of example, a perspective front view of the exchangeable segment 6c with suction strip 7c removed from the vacuum cylinder 6. The suction bar 7 can divide the outer contour surface of the interchangeable segment 6c into a first area 6c1 whose radial peripheral circumference can correspond to the length of a label and in a second area 6c2 whose radial peripheral circumference can correspond to a predetermined spacing between two labels that are attached to two different containers will.

The height 29 of the interchangeable segment 6c can be equal to or greater than the height of the container to be labeled and, for example, between 100 mm and 300 mm.

The reference numeral 26 identifies, for example, openings, exemplarily vacuum openings, in the outer contour surface of the interchangeable segment 6c and the reference numerals 30c1, 30c2 identify exemplary fastening elements, e.g. screwing elements, with which the interchangeable segment 6c is fixed to the vacuum cylinder 6 or to the inner support frame 11 of the vacuum cylinder 6 can be connected.

the Figure 3c shows an exemplary perspective rear view of the interchangeable segment 6c in which the exemplary rod-like fastening elements, e.g. screwing elements 30c1, 30c2, can be seen, as well as a plurality of channels or hoses 32, 33 for supplying openings of the interchangeable segments with vacuum or compressed air.

For reasons of clarity, not all channels or hoses are shown. For example, only one of the exemplary nine possible channels 32 is shown in the drawing.

In addition, examples of possible centering elements 31c1, 31c2, e.g. centering pins, are shown with which the interchangeable segment 6c can be centered more easily when it is installed in the vacuum cylinder 6.

In addition, the reference number 34 denotes an exemplary movement mechanism or an exemplary control mechanism for controlling the movement of the suction bar 7c, in particular for controlling a radial movement of the suction bar 7c.

the Figure 4a shows an example of a squeegee 36 with an associated example of a movement mechanism or sliding mechanism 39 or an example of a control mechanism for controlling the movement of the squeegee 7c, in particular for controlling a radial movement 42 of the squeegee 7c.

For example, the exemplary switching mechanism or movement mechanism 39 can comprise a control cam or switching cam 40 in cooperation with a switching roller 41, that is, form an exemplary control cam mechanism that enables radial movement of the suction bar 36 for retracting or extending the suction bar 36, ie for moving or switching the squeegee between different radial working positions or working positions.

The suction bars of the interchangeable segments can also be designed to be interchangeable, so that, for example, when retrofitting, e.g. when changing the container type or label type, only the suction bar and not the entire interchangeable segment has to be replaced.

In other words, the in Figure 4a The suction bar 36 shown can also be used with the interchangeable segments described in the preceding figures.

The exemplary suction strip 36 has an exemplary step or an exemplary projection 38 which divides the outer contour surface 37 of the suction strip 36 into at least two areas or two outer contour surface parts 37a, 37b, the outer contour surface part or the outer contour surface 37b having an outer diameter which is larger is the outer diameter of the interchangeable segments (not shown), the mounting elements and the strips of a vacuum transfer cylinder (not shown) serving as cutting surfaces.

The height 48 of the outer contour surface 37b can correspond to the height of a retracted area of a container to be labeled.

the Figure 4b shows in a perspective and simplified manner an exemplary relative positioning of an exemplary interchangeable segment 45 of a vacuum transfer cylinder (not shown) to a container 43 to be labeled Fig.4a exemplary suction bar 36 described. The exemplary interchangeable segment 45 and the exemplary suction strip 36 are fully compatible with the interchangeable segments of the exemplary vacuum cylinder 6 described above Fig.1 , Fig. 2 , Fig. 3a , Figures 3b and 3c .

The container 43 to be labeled has an exemplary retracted area 44, i.e. a container area of the outer surface of the container 43 which has a smaller outer diameter than adjacent or other outer areas of the container 43, such as the bottom area 43 of the container, which has a larger outer diameter as the exemplary indented area 44.

In an exemplary labeling process, the vacuum cylinder on which the interchangeable segment 45 can be located and the container 44 can be positioned so that the retracted container area 44 and the outer contour surface 37b of the suction strip 36 can be at the same height.

In the example shown, the base 47 of the interchangeable segment 45 lies above the base 46 of the container 43. However, this configuration is only an example. Among other things, it is also possible, for example, for the base 47 of the interchangeable segment 45 to be at the same height or in the same plane as the base 46 of the container 43.

For the sake of clarity, the Figure 4b no label shown on the interchangeable segment.

For the sake of completeness, it should be mentioned that the vacuum transfer cylinder can have a cover, which, however, was not shown in the figures in order to enable a view into the interior of the vacuum transfer cylinder.

It goes without saying that the features of the vacuum transfer cylinder and its interchangeable segments described by way of example are not limited to the special combinations described in the figures and are possible in any other combinations.

This is followed by 5 sheets with the figures Fig.1 , Fig. 2 , Fig. 3a , Figure 3b , Figure 3c , Fig. 4a and Fig. 4b .

• 1 Etikettieraggregat
• 2 Etikettenband, beispielhaftes vorbeleimtes Etikettenband
• 3 Zu etikettierender Gegenstand, z.B. Behälter
• 4 Abrollvorrichtung
• 5 Schneidrotor
• 6 Vakuumtransferzylinder, beispielhafter segmentierter Vakuumtransferzylinder
• 6a, 6b, 6c, 6d Wechselsegmente
• 6a1, 6a2 Beispielhafter Bereiche der Außenkonturfläche des Wechselsegmentes 6a
• 6c1, 6c2 Beispielhafter Bereiche der Außenkonturfläche des Wechselsegmentes 6c
• 7a, 7b, 7c, 7d Beispielhafte Saugleisten
• 8a, 8b, 8c, 8d Beispielhafte Leisten, beispielhafte Hartmetallleisten
• 9a, 9b, 9c, 9d Beispielhafte Halterungselemente zur Aufnahme / Halterung der Leisten
• 10 Beispielhaftes Gestell für Etikettieraggregat, beispielhaftes Gehäuse
• 11 Beispielhafter Kern, beispielhaftes Skelett, beispielhaftes inneres Tragegerüst
• 12 Beispielhafte Förderrolle / Förderwalze
• 13 Beispielhafte Förderrolle / Förderwalze
• 14 Beispielhafte Führung
• 15 Beispielhafter Etikettenbandpuffer
• 16a, 16b Beispielhafte Etikettenbandspeicherrolle
• 17 Beispielhafte Spleiß-Vorrichtung
• 18 Beispielhafte Regelungseinheit
• 19a, 19b Beispielhafte Teilung, beispielhafter Abstand zwischen zwei aufeinanderfolgenden Etiketten
• 20a, 20b, 20c Beispielhafte Etiketten, beispielhafte vom Etikettenband abgeschnittene / abgetrennte Etiketten
• 21 Beispielhafter Bereich, beispielhafter Winkelbereich von Drehpositionen des Vakuumtransferzylinders in dem etwaige vom Vakuumtransferzylinder radial abstehende Komponenten eingezogen werden können um Kollisionen zu vermeiden
• 22 Beispielhafte Drehachse des Vakuumtransferzylinders
• 23 Beispielhafte räumliche Ansicht eines Teils eines Etikettieraggregat
• 24 Beispielhafte Öffnung(en), beispielhafte Vakuumöffnung(en), in Halterungselement, beispielhafte Bohrung zur Aufnahme von Befestigungsmitteln
• 25 Beispielhafte Öffnung(en), beispielhafte Vakuumöffnung(en), in Saugleiste
• 26 Beispielhafte Öffnung(en), beispielhafte Vakuumöffnung(en), in Wechselsegment
• 27 Beispielhafter Teil eines Gestells des Etikettieraggregates
• 28, 28a, 28b, 28c, 28d Beispielhafte Hohlräume, die mit einander in Verbindung stehen können
• 29 Beispielhafte Höhe eines Wechselsegmentes
• 30c1, 30c2 Beispielhafte Befestigungselemente, beispielhafte Verschraubung
• 31c1, 31c2 Beispielhafte Zentrierelemente
• 32, 33 Beispielhafte Kanäle zur Versorgung von Öffnungen der Wechselsegmente mit Vakuum oder Druckluft
• 34 Beispielhafter Steuermechanismus zur Steuerung der Bewegung der Saugleiste 7c
• 35d Beispielhafter Rahmen von Haltelement 9d
• 36 Beispielhafte Saugleiste
• 37 Beispielhafte Außenkonturfläche der Saugleiste
• 37a Beispielhafter Außenkonturflächenteil der Saugleiste, beispielhafte Außenkonturfläche
• 37b Beispielhafter Außenkonturflächenteil der Saugleiste, Außenkonturfläche
• 38 Beispielhafte Stufe, beispielhafter Vorsprung
• 39 Beispielhafter Bewegungsmechanismus bzw. Schiebemechanismus bzw. Schaltmechanismus, beispielhafter Steuernockenmechanismus
• 40 Beispielhafte Schaltnocke, beispielhafte Steuerkurve
• 41 Beispielhafte Schaltrolle
• 42 Beispielhafte radiale Bewegung
• 43 Behälter
• 44 Beispielhafte eingezogener Behälterbereich
• 45 Beispielhaftes Wechselsegment
• 46 Beispielhafter Boden des Behälters
• 47 Beispielhafter Boden des Wechselsegmentes
• 48 Beispielhafte Höhe des Vorsprungs, beispielhafte Höhe des Außenkonturflächenteils der Saugleiste
• 49 Beispielhafte Höhe des eingezogenen Behälterbereichs

The reference symbols are assigned as follows.

• 1 labeling unit
• 2 label tape, exemplary pre-glued label tape
• 3 Object to be labeled, e.g. container
• 4 unwinding device
• 5 cutting rotor
• 6 vacuum transfer cylinder, exemplary segmented vacuum transfer cylinder
• 6a, 6b, 6c, 6d interchangeable segments
• 6a1, 6a2 Exemplary areas of the outer contour surface of the interchangeable segment 6a
• 6c1, 6c2 exemplary areas of the outer contour surface of the interchangeable segment 6c
• 7a, 7b, 7c, 7d Exemplary suction strips
• 8a, 8b, 8c, 8d Exemplary strips, exemplary hard metal strips
• 9a, 9b, 9c, 9d Exemplary mounting elements for receiving / mounting the strips
• 10 Exemplary frame for labeling unit, exemplary housing
• 11 Exemplary core, exemplary skeleton, exemplary inner supporting structure
• 12 Exemplary conveyor roller / conveyor roller
• 13 Exemplary conveyor roller / conveyor roller
• 14 Exemplary leadership
• 15 Exemplary label tape buffer
• 16a, 16b Exemplary tape storage roll
• 17 Exemplary splicing device
• 18 Exemplary control unit
• 19a, 19b Exemplary division, exemplary distance between two consecutive labels
• 20a, 20b, 20c Exemplary labels, exemplary labels cut / separated from the label tape
• 21 Exemplary range, exemplary angular range of rotary positions of the vacuum transfer cylinder in which any components protruding radially from the vacuum transfer cylinder can be drawn in to avoid collisions
• 22 Exemplary axis of rotation of the vacuum transfer cylinder
• 23 Exemplary three-dimensional view of part of a labeling unit
• 24 Exemplary opening (s), exemplary vacuum opening (s), in the mounting element, exemplary bore for receiving fasteners
• 25 Exemplary opening (s), exemplary vacuum opening (s), in the squeegee
• 26 Exemplary opening (s), exemplary vacuum opening (s), in an interchangeable segment
• 27 Exemplary part of a frame for the labeling unit
• 28, 28a, 28b, 28c, 28d Exemplary cavities that may be in communication with one another
• 29 Exemplary height of an interchangeable segment
• 30c1, 30c2 Exemplary fastening elements, exemplary screw connection
• 31 c1, 31c2 Exemplary centering elements
• 32, 33 Exemplary channels for supplying openings in the interchangeable segments with vacuum or compressed air
• 34 Exemplary control mechanism for controlling the movement of the squeegee 7c
• 35d Exemplary frame of retaining element 9d
• 36 Example squeegee
• 37 Exemplary outer contour surface of the squeegee
• 37a Exemplary outer contour surface part of the suction bar, exemplary outer contour surface
• 37b Exemplary outer contour surface part of the suction bar, outer contour surface
• 38 Exemplary level, exemplary lead
• 39 Exemplary movement mechanism or sliding mechanism or switching mechanism, exemplary control cam mechanism
• 40 Exemplary switch cam, exemplary control curve
• 41 Exemplary pulley
• 42 Exemplary radial movement
• 43 containers
• 44 Example of a retracted container area
• 45 Example of an interchangeable segment
• 46 Example bottom of the container
• 47 Exemplary floor of the interchangeable segment
• 48 Exemplary height of the projection, exemplary height of the outer contour surface part of the suction bar
• 49 Exemplary height of the retracted container area

Claims (15)

Labeling unit (1) for applying labels to containers (3), comprising at least one unwinding device (4) for a label tape (2), a cutting rotor (5) for cutting the label tape into individual labels (20a, 20b, 20c) and a vacuum transfer cylinder (6) for transferring the labels (20a, 20b, 20c) to the container,
characterized in that
the vacuum transfer cylinder (6) comprises a plurality of interchangeable interchangeable segments (6a, 6b, 6c, 6d), on the outer contour surfaces of which the labels can be transported, the interchangeable segments (6a, 6b, 6c, 6d) between fixed with the vacuum transfer cylinder (6) connected strips (8a, 8b, 8c, 8d) are arranged and wherein the strips (8a, 8b, 8c, 8d) are designed as cutting surfaces to interact with the cutting rotor (5) for cutting the label tape (2). Labeling unit (1) according to Claim 1, the strips (8a, 8b, 8c, 8d) being firmly connected to the vacuum transfer cylinder (6) via mounting elements (9a, 9b, 9c, 9d). Labeling unit (1) according to Claim 2, the holding elements (8a, 8b, 8c, 8d) having outer contour surfaces with openings (24) via which a negative pressure can be applied. Labeling unit (1) according to one of the preceding claims, wherein the interchangeable segments (6a, 6b, 6c, 6d) have a suction bar (7a, 7b, 7c, 7d) which divides the outer contour surfaces of the interchangeable segments into at least two areas (6a1, 6a2, 6c1 , 6c2) divides. Labeling unit (1) according to the preceding claim, wherein the suction bar (7a, 7b, 7c, 7d) is arranged in such a way that it moves the outer contour surface of an interchangeable segment (6a, 6b, 6c, 6d) into a first area (6a1, 6c1) divides the radial peripheral circumference of which corresponds to the length of a label and into a second area (6a2, 6c2) the radial peripheral circumference of which corresponds to a predetermined pitch (19a, 19b) between two labels which are attached to two different containers. Labeling unit (1) according to one of Claims 4 or 5, the suction strips (7a, 7b, 7c, 7d) having at least one outer contour surface with an outer diameter is larger than the outer diameter of the interchangeable segments (6a, 6b, 6c, 6d), the mounting elements (9a, 9b, 9c, 9d) and the strips (8a, 8b, 8c, 8d) which are designed as cutting surfaces. Labeling unit (1) according to one of Claims 4 to 6, the suction strips (7a, 7b, 7c, 7d) being designed to be movable and, in particular, being configured to carry out a radial movement. Labeling unit (1) according to the preceding claim, comprising at least one control cam mechanism (39) for controlling the movement of the suction strips (7a, 7b, 7c, 7d). Labeling unit (1) according to one of the preceding claims, wherein the strips (8a, 8b, 8c, 8d) designed as cutting surfaces for interacting with the cutting rotor for cutting the label strip are designed as hard metal strips. Labeling unit (1) according to one of the preceding claims, wherein the interchangeable segments (6a, 6b, 6c, 6d) with their outer contour surfaces cover the entire outer diameter of the vacuum transfer cylinder (6). Labeling unit (1) according to one of the preceding claims, comprising two, three, four, six or more exchangeable segments. Labeling unit (1) according to one of the preceding claims, comprising a control unit (18) which is designed to set a rotational position and / or rotational speed of the cutting rotor (5) and / or the vacuum transfer cylinder (6) and / or the control unit (18) for this purpose is designed to regulate the movement of the suction strips (7a, 7b, 7c, 7d) in a labeling unit according to one of claims 7 to 11. Labeling unit (1) according to the preceding claim and according to one of claims 7 to 11, wherein the control unit (18) is configured to retract the suction strips (7a, 7b, 7c, 7d) radially in a predetermined range of rotary positions of the vacuum transfer cylinder (6) . Labeling unit (1) according to one of the preceding claims, comprising a movable gluing device for gluing labels on the vacuum transfer cylinder (6). Labeling machine with a labeling unit (1) according to at least one of the preceding claims and with a conveyor with container receptacles for transporting the containers.

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