EP3060484B1 - Apparatus and method for changing paper rolls in a labelling machine - Google Patents

Description

The present invention relates to a device according to the preamble of claim 1 for changing rolls of paper in a labeling machine with a first receipt roll receptacle for a first receipt roll, the first receipt roll receptacle having a first roll carrier. The present invention also relates to a corresponding labeling machine with a labeling device, which has a supply device for supplying a carrier strip from a first receipt roll, wherein the carrier strip is provided with detachable labels, and a transfer device for transferring the labels from the carrier strip to an object to be labeled. The invention further relates to a method for changing reels, in particular using a device as defined above, in which the following steps are carried out: loading a first reel support of a first reel seat with a first reel in an unwinding position by the first reel on the first roll carrier is placed, and unwinding the first paper roll in the unwinding position of the first roll carrier.

A device according to the preamble of claim 1, a labeling machine with such a device and a corresponding method are known from the patent application EP 1 211 554 A1 known.

By a roll of paper is meant a wound strip of material from labels (linerless labels) or a carrier strip, for example carrier paper strips, with adhesive labels. Such rolls of paper are used in so-called labeling machines with which adhesive labels, which may be printed with information, are glued to articles to be labeled (goods or products). A labeling machine is for example from the DE 10 2007 034 698 A1 known. This labeling machine has a labeling device, which includes a supply device for supplying a carrier strip, which is provided with removable labels (the so-called adhesive labels). Such a carrier strip is usually supplied from a receipt roll. The labeling machine is also with a transfer means for transferring the labels from the carrier strip to the respective article to be labeled.

In labeling machines of the type described above, which thus use paper rolls for feeding the material or carrier strip, it is important to supply the material or carrier strip as continuously as possible, so that the labeling process is not possible or at least not interrupted for a long period of time. It must therefore be ensured that when a paper roll is completely unwound or contains no more labels, the Bonrollewechsel (that is, the insertion of a new Bonrolle) causes no appreciable time delay.

An aid with which the time required for a roll change can be bridged is, for example, a buffer with so-called dancer rolls. In such a buffer, a portion unwound from the respective receipt roll becomes e.g. a carrier strip several times over pulleys, of which at least some are movable, deflected and thereby "cached". Now, if the receipt roll unwound, the end of the unwound carrier strip is connected to the beginning of a new Bonrolle and the new Bonrolle inserted into the feeder. In the time required to connect the end of the unwound carrier strip to the beginning of the carrier strip wound on the new receipt roll and to insert the new receipt roll into the feeder, in the buffer the distance between the diverting pulleys is reduced further and further by some or all pulleys are moved, whereby the carrier strip from the buffer of the downstream transfer device can be fed further continuously or clocked, although the end of the carrier strip during said period is stationary (or at least moves less quickly).

It is an object of the present invention to optimize the roll change in a labeling machine.

• mit einer ersten Bonrollen-Aufnahme für eine erste Bonrolle, die also insbesondere zur Anordnung einer Bonrolle, insbesondere zum Einspannen einer Bonrolle, dient, die abgewickelt werden soll (das Abwickeln erfolgt insbesondere im Zuge eines Etikettiervorgangs, bei dem Produkte bzw. Waren etikettiert werden),
• mit einer zweiten Bonrollen-Aufnahme für eine zweite Bonrolle, die also insbesondere zur Anordnung einer Bonrolle dient, die, wenn die erste Bonrolle abgewickelt ist oder aus anderen Gründen entfernt worden ist, an die Stelle der ersten Bonrolle übertragen werden soll,
• mit einer entlang einer Achse, das heißt in axialer Richtung, hin- und herbewegbaren Welle (grundsätzlich kann die Welle jeden beliebigen Querschnitt haben, hat aber vorzugsweise einen runden Querschnitt und ist besonders bevorzugt als Spindel ausgebildet),
• wobei die erste Bonrollen-Aufnahme einen mit einem ersten Ende der Welle verbundenen ersten Rollenträger aufweist, wobei der erste Rollenträger insbesondere zum Einsetzen ins Innere einer Bonrolle bzw. eines Bonrollenkernelements und zum Tragen der Bonrolle dient bzw. konfiguriert ist,
• wobei der erste Rollenträger, insbesondere zusammen mit der Welle, entlang der Achse zwischen einer Abwickelposition und einer Transferposition hin- und herbewegbar ist,
• wobei der erste Rollenträger mindestens eine zwischen einer Spannposition und einer Freigabeposition radial (bezogen auf die axiale Richtung) verlagerbare, vorzugsweise radial schwenkbare, Spanneinrichtung, beispielweise Spannbacke, mit einer Kontaktfläche (zum Kontakt mit dem Inneren einer Bonrolle bzw. eines Bonrollenkernelements), die in der Spannposition radial weiter außen als in der Freigabeposition liegt, aufweist,
• wobei die zweite Bonrollen-Aufnahme einen zweiten Rollenträger aufweist, der in einer Lagerposition koaxial zum ersten Rollenträger angeordnet ist, wobei der zweite Rollenträger insbesondere zum Einsetzen ins Innere einer Bonrolle bzw. eines Bonrollenkernelements und zum Tragen der Bonrolle dient bzw. konfiguriert ist,
• wobei in der Transferposition des ersten Rollenträgers der erste Rollenträger zusammen mit der mindestens einen Spanneinrichtung, insbesondere Spannbacke, zumindest abschnittsweise im Inneren des in der Lagerposition angeordneten zweiten Rollenträgers, das heißt zumindest abschnittsweise im Inneren des Eingriffsbereichs des in der Lagerposition angeordneten zweiten Rollenträgers, angeordnet ist und
• wobei in der Abwickelposition des ersten Rollenträgers der erste Rollenträger zusammen mit der mindestens einen Spanneinrichtung, insbesondere Spannbacke, zumindest abschnittsweise außerhalb (das heißt axial neben) des in der Lagerposition angeordneten zweiten Rollenträgers, das heißt zumindest abschnittsweise außerhalb des Eingriffsbereichs des in der Lagerposition angeordneten zweiten Rollenträgers, angeordnet ist.

The previously derived and indicated object is achieved according to a first teaching of the present invention by a device for changing reels, in particular reels of a wound strip of labels or carrier strips, for example carrier paper strips, with adhesive labels, in a labeling machine

• with a first receipt roll receptacle for a first receipt roll, which thus serves in particular for arranging a receipt roll, in particular for clamping a receipt roll, which is to be unwound (the unwinding takes place in particular in the course of a labeling process in which products or goods are labeled) .
• with a second receipt roll receptacle for a second receipt roll, which thus serves in particular for arranging a receipt roll which, when the first receipt roll has been unwound or has been removed for other reasons, is to be transferred to the location of the first receipt roll,
• with a shaft which can be moved back and forth along an axis, that is to say in the axial direction (in principle the shaft can have any desired cross section, but preferably has a round cross section and is particularly preferably designed as a spindle),
• wherein the first receipt roll receptacle has a first roll carrier connected to a first end of the shaft, the first roll carrier being used for insertion into the interior of a receipt roll and for carrying the receipt roll, respectively;
• wherein the first roller carrier, in particular together with the shaft, is reciprocable along the axis between an unwinding position and a transfer position,
• wherein the first roller carrier at least one between a clamping position and a release position radially (with respect to the axial direction) displaceable, preferably radially pivotable, clamping device, for example, clamping jaw, with a contact surface (for contact with the interior of a Bonrolle or a Bonrollenkernelements), in the clamping position is radially outward than in the release position has,
• wherein the second roll receiving means comprises a second roll carrier which is arranged in a storage position coaxial with the first roll carrier, the second roll carrier being used in particular for insertion into the interior of a roll of candy and for carrying the roll of rolls;
• wherein in the transfer position of the first roller carrier of the first roller carrier together with the at least one clamping device, in particular clamping jaw, at least partially inside the arranged in the storage position second roller carrier, that is, at least partially inside the engagement region of the arranged in the storage position second roller carrier is arranged and
• wherein in the unwinding position of the first roller carrier of the first roller carrier together with the at least one clamping device, in particular clamping jaw, at least partially outside (that is, axially adjacent) of the arranged in the storage position second roller carrier, that is at least partially outside the engagement region of the arranged in the storage position second Roller carrier, is arranged.

As a clamping device not only a jaw can be used, but for example, an eccentric or air cushion. It is essential that the clamping device can expand and contract radially.

When the interior of the second roller carrier is mentioned, the engagement area of the second roller carrier is meant; Accordingly, when the area outside the second roller carrier is mentioned, the area outside the engagement area of the second roller carrier is meant. The area of engagement of the second roller carrier means the free space in the interior of a paper roll held in the intended manner by the second roller carrier, that is to say the space in which the second roller carrier engages. In other words, the engagement portion is defined as a space having the shape of a right circular cylinder whose cylinder axis is coaxial with the axis of the shaft to which the first roller support is connected, and whose Outer surface of the cylinder axis of the most distant (s) of the second roller carrier touched.

The device according to the invention, which may be part of a supply device for supplying a carrier strip with adhesive labels, wherein the supply device may be part of a labeling of a labeling machine, allows in a simple manner and in particular automatically changing reels, that is the replacement of a new paper reel against an old or unwound receipt roll. In this case, the second Bonroll recording can be equipped without time pressure with a second (new) Bonrolle, while in the first Bonroll recording the first (old) Bonrolle is unwound. The insertion of a receipt roll into the second receipt roll receptacle has no disturbing effect on the unwinding of the first receipt roll in the first receipt roll receptacle. By the first roller carrier by the shaft, which as I said in particular is a spindle, between the unwinding position or first recording Bonolla on the one hand and the transfer position or second Bonroll recording on the other hand back and forth can, with simple means, the second Bonrolle are moved from the second Bonrolle recording in the first Bonrollaufnahme (transferred) as soon as the old Bonrolle or the Bonrollenkernelement on which the old paper roll was wound up, is removed from the first Bonrollaufnahme. Since the shaft and thus the first roller carrier moves along an axis, the transport path of the new receipt roll from the second receipt roll receptacle to the first receipt receipt can be shortened to a minimum, so that the Bonrollewechsel can be done in a very short time.

In order to support the transport of the second receipt roll from the second receipt roll receptacle into the first receipt roll receptacle and in particular to automate partially or completely, according to the invention, as stated above, at least one fixture, in particular clamping fixture, is provided as part of the first roll support, which is relatively to the remaining part of the first roller carrier between a clamping position and a release position can reciprocate. This back and forth Herbewegung is, as will be further exemplified, in particular by cooperation of the first end of the shaft or spindle with the first roller carrier and the clamping devices, such as jaws, causes. Basically, the at least one clamping device, in particular clamping jaw, when the first roller carrier is in the transfer position, are brought into the clamping position, in which the contact surface of the clamping device, in particular clamping jaw axially fixed the receipt roll (preferably the contact surface of the clamping device presses against the inside Bonrolle or the Bonrollenkernelement). In this tensioned or axially fixed state, the receipt roll can now be moved from the second receipt roll receptacle to the first receipt roll receptacle by the first roll carrier being moved back from the transfer position to the unwinding position. It can then take the unwinding. After completion of the unwinding can then be removed to remove the old paper roll or Bonrollenkernelements the old paper roll from the first Bonrollen recording preferably the first roll carrier in a discharge position, which is even further away from the transfer position than the unwinding position. By the movement of the first roller carrier in the discharge position, the at least one clamping device, in particular clamping jaw, brought back into the release position, that is, the contact surface dissolves from the inside of the paper roll or the Bonrollenkernelements. At the same time, the paper roll or the Bonrollenkernelement be stripped from the first roll carrier, so that subsequently the first roll carrier is no longer equipped and can be used to hold the new, that is the second Bonrolle.

As already indicated above, the shaft, which is connected to the first roller carrier, preferably designed as a spindle. For the purposes of the present invention, a spindle is a shaft with an external thread. In particular, the first roller carrier has an internal thread corresponding to the external thread of the spindle. As a result, the first roller carrier can be moved relative to the spindle (by a screwing movement). But it is also possible that the movements of the spindle, that is, the rotational and the translational Movement, to be transferred to the first roller carrier. The spindle can thus basically fulfill two functions, namely on the one hand perform a movement relative to the first roller carrier (and thereby, for example, the at least one clamping device, in particular clamping jaw, move between the clamping position and the release position) and on the other hand, move the first roller carrier itself (and thus, for example Transport the receipt roll from the second receipt roll receptacle to the first receipt roll receptacle and / or discard or remove a receipt roll from the first receipt roll receptacle).

It should be noted that in the simplest case basically a single clamping device, in particular clamping jaw, sufficient for the described operation, in this case, therefore, the first roller carrier exactly one clamping device, in particular clamping jaw having. Preferably, the first roller carrier but at least two, more preferably at least three, between a clamping position and a release position radially displaceable, preferably radially pivotable, clamping devices or clamping jaws with a contact surface which is radially outward in the clamping position than in the release position. Each of these clamping devices or clamping jaws is then formed like the previously described at least one clamping device or clamping jaw and acts in the same way with the other components together. Thus, if in the following of the at least one clamping device, in particular clamping jaw, the speech is meant both the case that only a single clamping device, in particular clamping jaw, is provided, as well as the case that a plurality of clamping devices or clamping jaws are provided which are designed and work in the same way, in particular.

The one clamping device or jaw or the plurality of clamping devices or jaws can be designed hebeiförmig, wherein the respective clamping jaw or the lever which forms the clamping device or clamping jaw, articulated or formed on the first roller carrier, wherein one end the respective clamping device or the lever with the first end of the shaft or spindle cooperates and the other end of the respective clamping device or the lever has the contact surface.

According to one embodiment of the device according to the invention, as stated, the first roller carrier is movable along the axis, that is to say in the axial direction, into a release position, which is further away from the transfer position (in the axial direction) than the unwinding position. In other words, the unwinding position in this case lies axially between the dropping position and the transfer position. All positions lie on one and the same axis, so they are arranged coaxially to each other. By the first roller carrier can be brought into a discharge position, as stated, an old receipt roll can be removed or discarded from the first roll carrier in order then to be able to equip the first roll carrier with a new receipt roll.

According to another embodiment, the device has a stripping element which passes through the first roller carrier when it is moved along the axis from the unwinding position to the uncoupling position. The scraping element serves to strip the old paper roll or the roll core element from the first roll carrier when the first roll carrier is moved from the unwinding position to the dropping position. The wiping element may be the edge of an opening in a wall of the device (ie, the wall defining / surrounding material), the opening in particular having a diameter corresponding to the outer diameter of the first roller carrier in the state when the at least one clamping device or clamping jaw in the release position is (smallest possible circumference of the first roller carrier). The stripping element can also be used simultaneously to move the at least one clamping device or clamping jaw from the clamping position to the release position; Thus, the first roller carrier in the state when the at least one clamping device or clamping jaw is in the clamping position (largest possible circumference of the first roller carrier), a larger circumference than in the state when the at least one clamping device or clamping jaw in the Release position is. Inevitably, when the first roller carrier passes on the way from the unwinding position to the release position, the stripping element is guided through the opening in the wall of the device, the at least one clamping device or clamping jaw to the stripping element or the edge of said opening and When the first roll carrier is moved further toward the discharge position, it is pushed toward the release position.

The following is an example of how the Bonrollenwechsel can be achieved technically. Thus, according to one embodiment of the device according to the invention, it is provided that the at least one clamping device or clamping jaw is configured or movable or driven and / or cooperates with the shaft and the other roller carrier in such a way that, when the first roller carrier is in the transfer position is in the clamping position or can be brought into the clamping position, which is preferably done automatically (automated).

Furthermore, according to a further embodiment of the device according to the invention, it is provided that the at least one clamping device or clamping jaw is configured or movable or driven and / or cooperates with the shaft and the other roller carrier in such a way that, when the first roller carrier in the Abwickelposition is, in the clamping position or in an intermediate position between the clamping position and the release position is or can be brought into an intermediate position between the clamping position and the release position, which is preferably done automatically (automated).

In addition, according to yet another embodiment of the device according to the invention, it is provided that the at least one clamping device or clamping jaw is configured or movable or driven and / or cooperates with the shaft and the other roller carrier in such a way that, when the first roller carrier is in the discharge position is in the release position or can be brought into the release position, which is preferably done automatically (automated).

In particular, the first roller carrier is connected to the shaft such that a rotational movement of the shaft about the axis and / or a translatory movement of the shaft along the axis causes the radial displacement of the at least one clamping device or clamping jaw between the clamping position and the release position ,

The shaft (which is meant, as I said, in particular a spindle) can be moved along the said axis, ie axially, relative to the first roller carrier, which can be achieved in that the first roller carrier is fixed axially and / or radially, for example on a stop is applied, or in that the shaft jerky, that is suddenly, is moved, so that the inertia of the first roller carrier that the movement of the shaft can not follow or the movement of the shaft is not completely transferred to the first roller carrier. On the other hand, if the shaft is only accelerated or moved slowly, due to the friction between the roller carrier and the shaft, the movement of the shaft is transferred completely or at least almost completely to the first roller carrier so that it rotates and translates with the shaft.

• Transferposition: die Welle wird, insbesondere von einem ersten Motor eines Antriebs, zur Transferposition bewegt. Das dem ersten Rollenträger zugewandte bzw. mit dem ersten Rollenträger verbundene Ende, das heißt das erste Ende, der Welle, drückt die Spanneinrichtung(en) auseinander bzw. in die Spannposition, sobald sich der erste Rollenträger in der Transferposition befindet. Beispielsweise wird dies dadurch erreicht, dass der erste Rollenträger in der Transferposition an einen axialen Anschlag gelangt bzw. gedrückt wird, der verhindert, dass sich der erste Rollenträger in axialer Richtung weiter von der Abwickelposition als bis zu diesem Punkt entfernen kann, wobei die Welle sich aber dennoch weiter in Richtung von der Abwickelposition zur Transferposition bewegen kann, sich also dann relativ zum ersten Rollenträger (insbesondere in diesen hinein) bewegen kann, und dadurch die am ersten Rollenträger angelenkte(n) oder angeformte(n) Spanneinrichtung(en) in die Spannposition bringt. Die auf dem zweiten Rollenträger angeordnete zweite Bonrolle wird auf diese Weise am ersten Rollenträger festgeklemmt.

As a result of the preceding configuration of the device according to the invention and in particular by the described interaction between shaft, tensioning device (s) and remaining roller carrier, the following is achieved when the individual positions of the first roller carrier are reached (transfer position, unwinding position, discharge position):

• Transfer position: the shaft is moved to the transfer position, in particular by a first motor of a drive. The end facing the first roller carrier or connected to the first roller carrier, that is, the first end of the shaft, pushes the clamping device (s) apart or into the clamping position as soon as the first roller carrier is in the transfer position. For example, this is achieved by the fact that the first roller carrier in the transfer position is pressed or pressed against an axial stop, which prevents the first roller carrier in the axial direction further from the unwinding position than to this point, but the shaft can still move further in the direction from the unwinding position to the transfer position, and thus move relative to the first reel carrier (especially into it), and thereby bring the clamping device (s), which is hinged or molded onto the first roller carrier, into the clamping position. The arranged on the second roller carrier second Bonrolle is clamped in this way on the first roller carrier.

Unwinding position: when the shaft is then moved back from the transfer position to the unwinding position, for example by the first motor, the position of the shaft relative to the first roller carrier and relative to the tensioning device (s) does not change or at least hardly changes. In this case, the shaft does not rotate during the movement from the transfer position to the unwinding position, or at least not appreciably. The receipt roll remains clamped on the first roll carrier. It can happen that, during the movement from the transfer position into the unwinding position, the force transmitted by the shaft to the at least one clamping device or clamping jaw, which presses the at least one clamping device or clamping jaw into the clamping position, decreases somewhat, as a result of which the at least one clamping device or clamping jaw then no longer exactly in the clamping position (that is, the maximum outer position with the highest clamping force) would be, but slightly deviates from this position (this position was previously defined as an intermediate position between the clamping position and the release position). Despite a slight deviation from the clamping position in this intermediate position but then the clamping force that transmits the at least one clamping device or clamping jaw on its contact surface on the inside of the paper roll, still from the receipt roll on the first roll carrier for the purpose of unwinding in the unwinding position to fix. In principle, it is also conceivable that the clamping position is maintained in any case during the transport of the roll from the transfer position to the unwinding position, for example by upon reaching the clamping position, the at least one clamping device or clamping jaw is blocked by a securing means. The blocking or securing means can then be released manually or automatically if necessary.

Dropping position: Finally, the shaft, in particular by the first motor in the axial direction even further moved away from the transfer position, namely in the discharge position, the shaft moves back relative to the first roller carrier, this time in the opposite direction than in the Transfer position (in particular, the shaft moves partially out of the first roller carrier), whereby the pressure or the force of the shaft on the tensioning device (s) decreases or falls and the tensioning device (s) can move back to the release position / can. The latter can also be done by pressing the first motor. In the event that a securing means has blocked the clamping device (s) in the clamping position, this securing means is released in the discharge position or the blocking is released. The movement of the tensioner (s) from the cocking position to the release position may be assisted by a bias applied to the tensioner (s) by a spring force. In addition or alternatively, the wiping element can also be designed so that, as soon as the first roller carrier passes this in the direction of the discharge position, it compresses the clamping device (s) or presses it into the release position. The relative movement between the shaft and the first roller carrier can be effected in different ways, for example by a jerky or sudden movement of the shaft, which means that the first roller carrier does not or hardly moves due to its inertia. Alternatively or additionally, however, the first roller carrier in the discharge position can also be pressed against an axial stop, which prevents the first roller carrier from moving further away from the unwinding position in the axial direction, but the shaft nevertheless continues to move in the direction from the unwinding position to the discharge position can move, so again relative to the first roller carrier, in particular out of this, move, and thereby moves the hinged on the first roller support (s) or molded (n) clamping device (s) in the release position. The on the first roll carrier in the unwinding position arranged old paper roll is then because it is no longer clamped, dropped or discarded.

According to yet another embodiment, the device has a drive, which has at least one motor, preferably two motors, and the shaft along the axis, that is, in the axial direction, translational (ie back and forth) and the shaft about the axis rotatory (ie rotating) moves. When using two motors of a motor, especially at standstill of the other motor, cause the translational movement of the shaft. In particular, thereby a radial displacement of the clamping device (s), especially the clamping jaw (s), be effected in that only the motor for the translational movement is actuated while the other is stationary. If the first roller carrier is to be rotated, for example, to actively rotate the paper roll thereon, both motors can be actuated. In such a drive may be an electric drive (with one or two electric motor (s)) act.

According to yet another embodiment of the device according to the invention, it is provided that the second receiving roll holder and / or the second roll carrier is movable, in particular pivotable, between the storage position and a loading position, wherein in the loading position the second roll carrier lies outside the movement range of the first roll carrier. The storage position is the position of the second roll carrier in which the second receipt roll is stored until transfer to the first roll carrier. The storage position of the paper roll receiving or of the second roll carrier thus intersects in particular with the transfer position of the first roll carrier, since in the transfer position the transfer from the second receipt roll receptacle to the first roll carrier takes place. The loading position of the second recording roll receiving or the second roll carrier is different from the storage position, so that the second roll carrier can be easily and safely equipped with a large safety distance to the first Bonrollen recording and a possibly rotating first paper roll. In particular, the second receipt roll receptacle or the second roll support can be about an axis pivot, said pivot axis is preferably orthogonal to the shaft or spindle axis.

According to yet another embodiment of the device according to the invention, the second roller carrier is formed by one or more pins or a sleeve which is / are arranged radially outside the transfer position of the first roller carrier, when the second cartridge roller holder and / or the second roller carrier is in the storage position. In the case of the presence of one or more pins, these run in particular parallel to the shaft or spindle axis and are arranged, preferably uniformly, around this axis. In the case of the presence of a sleeve forming the second roller carrier, the sleeve wall (cylinder wall) extends parallel around the shaft or spindle axis.

The object is further achieved by a labeling machine with a labeling device having a supply device for supplying a strip of material from labels or carrier strip with detachable labels, and a transfer device for transferring the labels from the material or carrier strip on an object to be labeled, wherein the supply device a device as described above. The labeling machine can be designed as explained above. In particular, a material or carrier strip from a receipt roll, as described above, unwound and fed via the supply means of a transfer device, wherein in the last the labels are detached from the material or carrier strip and transferred to the respective object. In particular, the labeling can also have a buffer with dancer rolls, as this also has been described in the introduction. With such a buffer can easily bridge the time required for the change of the receipt rolls from the second Bonroll recording in the first Bonrollaufnahme.

• Bestücken eines ersten Rollenträgers einer ersten Bonrollen-Aufnahme mit einer ersten Bonrolle in einer Abwickelposition, indem die erste Bonrolle auf den ersten Rollenträger aufgesetzt wird,
• Abwickeln der ersten Bonrolle in der Abwickelposition des ersten Rollenträgers,
• Bestücken eines zweiten Rollenträgers einer zweiten Bonrollen-Aufnahme mit einer zweiten Bonrolle, insbesondere indem die zweite Bonrolle auf den zweiten Rollenträger aufgesetzt wird, was vorzugsweise in einer Bestückungsposition erfolgt (das Bestücken kann erfolgen, während der erste Rollenträger mit der ersten Bonrolle bestückt ist bzw. während die erste Bonrolle abgewickelt wird),
• nachdem die erste Bonrolle (damit kann auch ein eventuell vorhandenes Bonrollenkernelement gemeint sein, auf dem die erste Bonrolle aufgewickelt war) von dem ersten Rollenträger entfernt bzw. der erste Rollenträger von der ersten Bonrolle (bzw. dem Bonrollenkernelement) befreit ist, indem insbesondere die Bonrolle abgewickelt ist oder die Bonrolle aus einem anderen Grund vom ersten Rollenträger entfernt ist, Bewegen des ersten Rollenträgers entlang einer Achse ins Innere des zweiten Rollenträgers, das heißt ins Innere des Eingriffsbereichs des zweiten Rollenträgers, in eine Transferposition,
• während und/oder nach dem Bewegen des ersten Rollenträgers ins Innere des zweiten Rollenträgers, das heißt ins Innere des Eingriffsbereichs des zweiten Rollenträgers, radiales Verlagern mindestens einer Spanneinrichtung, beispielsweise Spannbacke, des ersten Rollenträgers in eine Spannposition und dadurch Festklemmen der zweiten Bonrolle auf dem ersten Rollenträger, und
• nach dem Festklemmen der zweiten Bonrolle auf dem ersten Rollenträger, Bewegen des ersten Rollenträgers entlang der Achse zurück in die Abwickelposition des ersten Rollenträgers.

Finally, the object is also achieved by a method for changing receipt rolls, in particular using a device as described above, in which the following steps are carried out:

• Loading a first roll carrier of a first receipt roll receptacle with a first receipt roll in an unwinding position by placing the first receipt roll on the first roll carrier,
• Unwinding the first receipt roll in the unwinding position of the first roll carrier,
• Equipping a second roll carrier of a second receipt roll receptacle with a second receipt roll, in particular by the second receipt roll is placed on the second roll carrier, which preferably takes place in a loading position (the loading can take place while the first roll carrier is equipped with the first paper roll or while the first receipt roll is being processed),
• after the first receipt roll (which may also mean a possibly present Bonrollenkernelement on which the first receipt roll was wound) removed from the first roll carrier or the first roller carrier of the first Bonrolle (or the Bonrollenkernelement) is exempted, in particular by the receipt role or the receipt roll is removed from the first roll carrier for another reason, moving the first roll carrier along an axis into the interior of the second roll carrier, that is to say into the interior of the engagement region of the second roll carrier, into a transfer position,
• During and / or after moving the first roller carrier into the interior of the second roller carrier, ie inside the engagement region of the second roller carrier, radially displacing at least one clamping device, such as jaw of the first roller carrier in a clamping position and thereby clamping the second paper roll on the first Roller carrier, and
• after clamping the second roll of paper on the first roll carrier, moving the first roll carrier along the axis back to the unwinding position of the first roll carrier.

Now that the original second receipt roll is on the first roll carrier in the unwinding position, it can be unwound. This Unwinding then corresponds again to the second bullet point in the preceding list ("unwinding of the first receipt roll in the unwinding position of the first roll carrier"), so that the inventive method can then repeat in particular from this point.

The step of loading the first roll carrier with the first roll of paper, in particular when it comes to the first loading, either by the fact that the first roll of paper is placed on the first roll carrier by hand, wherein after placing in particular a radial displacement of at least a clamping device, in particular clamping jaw, of the first roller carrier in a clamping position (ie, radially outward) and thereby a clamping of the first paper roll on the first roller carrier. In order to effect the radial displacement, a separate axial stop may be provided, which is preferably temporarily moved between the winding position and the transfer position for this purpose, so that it is aligned with the shaft axis. The radial displacement can then be effected by pushing the first roller carrier from the unwinding position against the separate stop which prevents the first roller carrier from moving farther from the unwinding position in the axial direction than to this point However, shaft can still move in the direction of the unwinding position to the transfer position and thereby bring the hinged on the first roller support (s) or integrally formed (s) clamping device (s) in the clamping position. The arranged on the first roll carrier carrier role is clamped in this way on the first roller carrier

Alternatively, the loading of the first roll carrier with the first roll of paper can also take place in that the second roll carrier is previously equipped with the first roll of rolls, in particular by the first roll of rolls is placed on the second roll carrier, which preferably takes place in the loading position, wherein subsequently the first Roller carrier is moved along the axis into the interior (the engagement portion) of the second roller carrier in the transfer position, wherein during and / or after moving the first roller carrier into the inside (of the Engaging portion) of the second roller carrier, the at least one tensioning device, such as clamping jaw, of the first roller carrier is displaced to a clamping position and thereby the first roll of paper is clamped on the first roll carrier, whereupon the first roll carrier with the first roll of paper along the axis back to the unwinding position of the first Roller carrier is moved, whereby the first roller carrier is also equipped (for the first time).

It can also be provided, in particular after the first roll carrier has been loaded with the respective roll of paper, that the outer end of the roll of rolls is threaded into a subsequent device, for example unwinding device, wherein the threading preferably takes place automatically, but can also be carried out by hand. Alternatively, it is also conceivable to glue together the outer end of the second receipt roll, which is in the transfer position on the second donut carrier, with the inner end of the receipt roll, which is on the first donut carrier in the unwinding position and which is or is to be unwound. The gluing is preferably also automatically, but can also be done by hand.

According to one embodiment of the method according to the invention, it is provided that, before the first roll carrier is freed from the first receipt roll, the outer (outer) end, ie the beginning, of the second receipt roll is connected to the inner (inner) end of the first receipt roll, in particular glued, is, whereby the material or carrier strip is formed in particular as a continuous strip. The connection of the beginning of the second roll of paper with the end of the first roll of rolls takes place in particular when the first roll carrier carries out no rotational movement, ie the unwinding process is stopped. In this case, the buffer described with the dancer rolls can bridge the time needed to connect the two roll paper ends together. In order to simplify the connection of the two ends, in particular each paper roll has an adhesive strip at the beginning, preferably on the side of the carrier strip facing away from the labels.

According to yet another embodiment of the method according to the invention, the first receipt roll and / or the second receipt roll have a separate core element, as has already been described above. The Bonrollenkernelement is usually a sleeve-shaped core element, preferably made of metal and / or cardboard and / or wood and / or plastic. The core element (also called the core) touches and surrounds the respective roller carrier equipped with the paper roll and serves to receive the wound carrier strip with the adhesive labels. After a receipt roll is completely unwound, then only the core element remains, which then has to be removed or stripped off before re-loading the first reel carrier with a second reel of this, which happens in particular by the fact that the first roll carrier from the unwinding in the dropping position is moved as previously described. For the sake of completeness, it should be pointed out that, in principle, in the case of the previously described transfer apparatus, the labeling machine described above and the corresponding method for changing receipt rolls, both receipt rolls and receipt rolls without a separate core element can be used. When using a paper roll without core element then also the movement of the first roll carrier from the unwinding position is unnecessary in a discharge position, since the first roll carrier is automatically free after the complete unwinding of the paper roll. Accordingly, in the latter case, the Bonrollewechselvorrichtung not even have the technical means with which the first roller carrier from the unwinding position is movable into a discharge position.

According to yet another embodiment of the method according to the invention, it is provided, as has already been explained above with reference to the device, that the at least one tensioning device or clamping jaw of the first roller carrier is removed from the first roller carrier by a first roller carrier for removing the first receiving roller and / or the core element Release position is shifted radially in which the first receipt roll loosely rests on the first roll carrier, that is no longer clamped.

Accordingly, according to yet another embodiment of the method according to the invention may be provided that is moved to remove the first paper roll and / or the core element of the first paper roll from the first roller carrier of the first roller carrier along the axis of a stripping past in a discharge position, which of the Transfer position in (axial direction) is farther away than the unwinding position, wherein upon movement of the first roller carrier from the unwinding position to the throw-off position, the first roller carrier passes the stripping element and the first paper roll and / or the core element of the first paper roll is detected by the scraping element and stripped off the first roller carrier.

In the method according to the invention, according to yet another embodiment, it can finally also be provided that, for loading the second roll carrier with the second roll of paper, the second roll of roll paper and / or the second roll carrier moves from a storage position to a fitted position, in particular is pivoted is arranged in the loading position of the second roller carrier outside the range of motion of the first roller carrier.

Fig. 1

eine perspektivische Ansicht einer Vorrichtung zum Wechseln von Bonrollen gemäß der vorliegenden Erfindung,

Fig. 2

eine Draufsicht auf die Vorrichtung aus Fig. 1,

Fig. 3

eine Seitenansicht der Vorrichtung aus Fig. 1 und

Fig. 4

eine Vorderansicht der Vorrichtung aus Fig. 1.

There are now a variety of ways to design and further develop the inventive device for changing rolls of paper, the labeling machine according to the invention and the inventive method for changing rolls of paper. In this respect, reference is made, on the one hand, to the claims subordinate to patent claim 1, and, on the other hand, to the description of an embodiment in conjunction with the drawing. In the drawing shows:

Fig. 1

a perspective view of a device for changing rolls of paper according to the present invention,

Fig. 2

a plan view of the device Fig. 1 .

Fig. 3

a side view of the device Fig. 1 and

Fig. 4

a front view of the device Fig. 1 ,

The in the FIGS. 1 to 4 illustrated device 1 is part of a supply device 8 for supplying a carrier strip 2.2 with labels 2.3, which can be solved by the carrier strip 2.2 and transmitted to be labeled objects (glued) can be. The device 1 and supply device 8 is the subject of a labeling machine (not shown). The device 1 according to the invention serves to change receipt rolls 2, 2 'from a second receipt roll receptacle 4 to a first receipt roll receptacle 3. The receipt rolls 2, 2' are exemplified here by carrier strips 2.2, which in the present case are a Core element 2.1 are wound from cardboard. Alternatively, the carrier strip 2.2 can also be wound up without a core element and form a receipt roll 2 or 2 '. A roll of paper may also mean a wound-up strip of labels (linerless labels).

The first Bonrolleaufnahme 3 serves to receive a first paper roll 2, which can be handled in this receptacle 3. The second receipt roll receptacle 4 serves to receive a second receipt roll 2 ', which is temporarily stored in the receptacle 4 until it is transferred to the first receipt roll receptacle 3 by the procedure described below.

The device 1 further comprises a spindle-shaped shaft 5, which can be moved back and forth along an axis X, whose first end (in the figures right) is connected to a first roller carrier 3.1 (via a threaded connection). The roller carrier 3.1 can also be moved back and forth along the axis X, specifically between an unwinding position I and a transfer position II. Furthermore, the first reel carrier 3.1 can also be brought into a release position III, which is even further axially removed from the transfer position II as the unwinding position I.

In the first roller carrier 3.1 is an originally rotationally symmetrical body, in the outside of three parallel to the axis of rotation grooves 3.13 are introduced, which are equally spaced in the circumferential direction. In these grooves 3.13 lever-shaped clamping jaws 3.11 are pivotally mounted. The clamping jaws 3.11 are articulated on the first roller carrier 3.1 via a pivot axis 3.12, which runs transversely to the grooves 3.13. The respective front end (directed towards the second receiving roll receiving element 4) of the clamping jaws 3.11 has on the outside a contact surface for the inside contact with the core element 2.1 of a receiving roll 2 or 2 '. The rear end of the jaws 3.11 is located beyond the suspension point (bearing) of the jaw 3.11 and cooperates with the spindle 5 so that the spindle 5 when it is moved relative to the first roller carrier 3.1, the clamping jaws 3.11 either apart or releases. The clamping jaws 3.11 are thus radially displaceable between a clamping position a and release position b, the clamping position a being further outward than the release position b.

Previously, exemplary lever-shaped jaws 3.11 were described, which are pivoted. But it is also conceivable that the clamping jaws are elements which extend parallel to the axis X both in the clamping position a and the release position b. The jaws are then moved in the radial direction between clamping and release position, without changing their angle to the axis X. The latter jaws have the advantage of a full-surface investment in the Bonrollenkern or in the paper roll compared to swivel jaws.

The second receipt roll receptacle 4 further has a second reel support 4.1, which is formed by three pins 4.11, which run parallel to the axis X and are each arranged far enough away from the axis X, that the first reel support 3.1 in a position between the pins 4.11 can be driven. This position is defined as transfer position II.

The second Bonrolleaufnahme 4 and the second roller carrier 4.1 are in the FIGS. 1 to 4 arranged in a storage position A, which is coaxial with the first roller carrier 3.1. In the transfer position II of the first roller carrier 3.1, which lies between the pins 4.11, the first roller carrier 3.1 is at least partially arranged together with the clamping jaws 3.11 inside the arranged in the storage position A second roller carrier 4.11 and can here by spreading the jaws 3.11 a in the second Bonroll recording 4 stored second receipt roll 2 'record. The first roller carrier 3.1 can then be moved to the unwinding position I, in which the first roller carrier 3.1 is arranged together with the clamping jaws 3.11 outside (of the engagement region) of the second roller carrier 4.1 arranged in the storage position A. In this position I, a receipt roll 2, as in Fig.1 shown, handled.

After the receipt roll 2 has been unwound, the first roll carrier 3.1 can be moved along the axis X to the discharge position III, wherein the roll carrier 3.1 is thereby moved through an opening in the walls 1.1 and 1.2 of the device 1. The right in the figures wall 1.1 and the edge of the provided in this wall 1.1 opening (not shown), through which the first roller carrier 3.1 is moved from the unwinding position I to the discharge position III, forms a scraper element 6, the first roller carrier 3.1 happens when it is moved to dropping position III. The wiping element serves to automatically strip the core element 2.1 of the paper roll 2 after it has been unwound.

When the first roller carrier 3.1 is in the transfer position II, the clamping jaws 3.11 are in the radially outer position, that is, the clamping position a. Thereby, a second receipt roll 2 ', which in Fig. 2 dashed lines are shown clamped on the first roller carrier 3.1. If the roller carrier 3.1 is moved back into the unwinding position I, the clamping position a is maintained in the present case, that is, the paper roll remains clamped on the roller carrier 3.1 as before. Only when the paper roll is unwound and the roller carrier 3.1 is moved to the discharge position III, the jaws 3.11 in the release position b moves, causing the core element 2.1 from the first roller carrier 3.1 triggers. The jaws 3.11, which are initially still in the clamping position a, come in the movement of the first roller support 3.1 from the unwinding position I to the release position III also with the stripping element 6, that is the opening in the wall 1.1, in contact and be compressed thereby, so that they reach the release position b.

The pressing apart of the clamping jaws 3.11 in the transfer position II, for example, by the fact that the first roller carrier 3.1 is pressed in the transfer position II to the wall 4.2 of the second receptacle 4, the wall 4.2 thus forms a stop for the roller carrier 3.1, which prevents the roller carrier 3.1 can move further to the right. The spindle 5 is mounted via a thread in the first roller carrier 3.1 so that it, if the roller carrier 3.1 can not move further to the right in the axial direction, still can move relative to the roller carrier 3.1, this relative movement causes the rear (the spindle 5 facing) ends of the jaws 3.11 are touched by the spindle end, wherein the now exerted on the lever-shaped jaws 3.11 of the spindle 5 force the clamping jaw lever 3.11 apart, in said clamping position a. A correspondingly opposite effect is achieved when the first roller carrier 3.1 is moved to the discharge position III and there comes into contact with the wall 1.3 of the device 1. In this case, the wall 1.3 forms a stop for the first roller carrier 3.1 in the dropping position III, so that the roller carrier 3.1 can not move further to the left in the axial direction. However, the spindle 5 can continue to move relative to the first roller carrier 3.1, whereby the force that has previously exerted the spindle 5 on the clamping jaws 3.11, omitted, so that the jaws 3.11 can get back into the release position b.

In the FIGS. 1 . 2 and 4 partially an electric drive 7 is shown, the spindle 5 both rotationally about the axis X (with a first motor) and translationally along the axis X (with a second motor, not shown here) emotional. For reasons of clarity, no connection is shown between the toothed output-side shaft 7.1 of the drive 7 and the likewise toothed transmission element 5.2. The connection can consist of a toothed belt or a gear. The externally toothed transmission element 5.2 is axially fixed to the housing of the device 1, so it can not move along the axis X. Inside, the transmission element 5.2 has an internal thread which corresponds to the external thread of the spindle 5. A corresponding corresponding internal thread also has the first roller carrier 3.1.

As in Fig. 2 is shown, the second Bonrollen receptacle 4 has a pivot axis 4.2, which allows to move the second Bonrollen receptacle 4 and the second roller carrier 4.1 between the storage position A and a loading position B, that is to pivot. In the loading position B, the second roller carrier 4.1 is outside the range of movement of the first roller carrier 3.1, that is, the first roller carrier 3.1, if it is in the transfer position II and the second Bonrollenaufnahme 4 is arranged in the loading position B, not between the pins 4.11 of the second roller carrier 4.1 arrive.

• Bestücken eines ersten Rollenträgers 3.1 einer ersten Bonrollen-Aufnahme 3 mit einer ersten Bonrolle 2 in einer Abwickelposition I, indem die erste Bonrolle 2 auf den ersten Rollenträger 3.1 aufgesetzt wird,
• Abwickeln der ersten Bonrolle 2 in der Abwickelposition I des ersten Rollenträgers 3.1,
• Bestücken eines zweiten Rollenträgers 4.1 einer zweiten Bonrollen-Aufnahme 4 mit einer zweiten Bonrolle 2',
• nachdem die erste Bonrolle 2 von dem ersten Rollenträger 3.1 entfernt ist, Bewegen des ersten Rollenträgers 3.1 entlang einer Achse X ins Innere (des Eingriffsbereichs) des zweiten Rollenträgers 4.1 in eine Transferposition 2,
• während und/oder nach dem Bewegen des ersten Rollenträgers 3.1 ins Innere (des Eingriffsbereichs) des zweiten Rollenträgers 4.1, radiales Verlagern mindestens einer Spannbacke 3.11 des ersten Rollenträgers 3.1 in eine Spannposition a und dadurch Festklemmen der zweiten Bonrolle 2' auf dem ersten Rollenträger 3.1, und
• nach dem Festklemmen der zweiten Bonrolle 2' auf dem ersten Rollenträger 3.1, Bewegen des ersten Rollenträgers 3.1 entlang der Achse X zurück in die Abwickelposition I des ersten Rollenträgers 3.1.

In the following, a method for changing receipt rolls 2, 2 'is described, which can be performed by the device 1. The procedure includes the following steps:

• Loading a first roll carrier 3.1 of a first receipt roll receptacle 3 with a first receipt roll 2 in an unwinding position I, by placing the first receipt roll 2 on the first roll carrier 3.1,
• Unwinding the first receipt roll 2 in the unwinding position I of the first roll carrier 3.1,
• Loading a second roll carrier 4.1 of a second receipt roll receptacle 4 with a second receipt roll 2 ',
• after the first receipt roll 2 has been removed from the first roll support 3.1, moving the first roll support 3.1 along an axis X into the interior (of the engagement region) of the second roll support 4.1 into a transfer position 2,
• during and / or after moving the first roller carrier 3.1 into the interior (of the engagement region) of the second roller carrier 4.1, radially displacing at least one clamping jaw 3.11 of the first roller carrier 3.1 into a clamping position a and thereby clamping the second carrier roller 2 'on the first roller carrier 3.1, and
• after clamping the second paper roll 2 'on the first roll carrier 3.1, moving the first roll carrier 3.1 along the axis X back to the unwinding position I of the first roll carrier 3.1.

Claims (15)

1. A device (1) for changing label rolls (2,2') in a labelling machine

   - with a first label roll holder (3) for a first label roll (2),

   - with a second label roll holder (4) for a second label roll (2'),

   - with a shaft (5) that can be moved to and fro along an axis (X),

   - wherein the first label roll holder (3) comprises a first roll carrier (3.1) that is connected to a first end (5.1) of the shaft,

   - wherein the first roll carrier (3.1) can be moved to and fro along the axis (X) between an unwinding position (I) and a transfer position (II),

   - wherein the first roll carrier (3.1) comprises at least one clamping device (3.11) that is radially displaceable between a clamping position (a) and a release position (b) and comprising a contact surface which in the clamping position (a) lies radially further outside than in the release position (b),

   - wherein the second label roll holder (4) comprises a second roll carrier (4.1) which in a storage position (A) is arranged coaxially to the first roll carrier (3.1), and

   - wherein in the unwinding position (I) of the first roll carrier (3.1) the first roll carrier (3.1) together with the at least one clamping device (3.11) is arranged, at least in some sections, outside the second roll carrier (4.1) arranged in the storage position (A),

   characterized in that in the transfer position (II) of the first roll carrier (3.1) the first roll carrier (3.1) together with the at least one clamping device (3.11) is arranged at least in some sections in the interior of the second roll carrier (4.1) arranged in the storage position (A).
2. The device (1) according to Claim 1, characterized in that the shaft (5) is formed as a spindle.
3. The device (1) according to Claim 1 or 2, characterized in that the first roll carrier (3.1) can be moved along the axis (X) into a dropping position (III), which is further away from the transfer position (II) than the unwinding position (I).
4. The device (1) according to any one of the preceding claims, characterized in that it comprises a stripping element (6), which the first roll carrier (3.1) passes when it is moved along the axis (X) from the unwinding position (I) into the dropping position (III).
5. The device (1) according to any one of the preceding claims, characterized in that the at least one clamping device (3.11) is configured and/or interacts with the shaft (5) and the remaining roll carrier (3.1) so

   - that, when the first roll carrier (3.1) is in the transfer position (II), it is in the clamping position (a) and/or can be brought into the clamping position (a), and/or

   - that the at least one clamping device (3.11) is configured and/or interacts with the shaft (5) and the remaining roll carrier (3.1) so that, when the first roll carrier (3.1) is in the unwinding position (I), it is in the clamping position (a) or in an intermediate position between the clamping position (a) and the release position (b) or can be brought into an intermediate position between the clamping position (a) and the release position (b), and/or

   - that, when the first roll carrier (3.1) is in the dropping position (III), it is in the release position (b) or can be brought into the release position (b).
6. The device (1) according to any one of the preceding claims, characterized in that the first roll carrier (3.1) is connected to the shaft (5) so that through a rotatoric movement of the shaft (5) about the axis (X) and/or translatoric movement of the shaft (5) along the axis (X), the radial displacement of the at least one clamping device (3.11) between the clamping position (a) and the release position (b) is brought about.
7. The device (1) according to any one of the preceding claims, characterized in that it comprises a drive (7), which translatorically moves the shaft (5) along the axis (X) and which rotatorically moves the shaft (5) about the axis (X), wherein the drive comprises in particular a single or two separate motors.
8. The device (1) according to any one of the preceding claims, characterized in that the second label roll holder (4) and/or the second roll carrier (4.1) can be moved, in particular pivoted, between the storage position (A) and a loading position (B), wherein in the loading position (B) the second roll carrier (4.1) lies outside the movement range of the first roll carrier (3.1).
9. The device (1) according to any one of the preceding claims, characterized in that the second roll carrier (4.1) is formed by one or more pins (4.11) or a sleeve, which is/are arranged radially outside the transfer position (II) of the first roll carrier (3.1) when the second label roll holder (4) and/or the second roll carrier (4.1) is in the storage position (A).
10. A labelling machine with a labelling device comprising a feeding device (8) for feeding a material strip of labels (2, 3) or substrate strip (2.2) with detachable labels (2.3) and a transfer device for transferring the labels (2.3) from the material or substrate strip (2.2) onto an object to be labelled, characterized in that the feeding device (8) comprises a device (1) according to any one of the preceding claims.
11. A method for changing label rolls (2.2') using a device (1) according to any one of Claims 1 to 9, during which the following steps are carried out:

    - loading a first roll carrier (3.1) of a first label roll holder (3) with a first label roll (2) in an unwinding position (I), by placing the first label roll (2) onto the first roll carrier (3.1),

    - unwinding the first label roll (2) in the unwinding position (I) of the first roll carrier (3.1),

    - loading a second roll carrier (4.1) of a second label roll holder (4) with a second label roll (2'),

    - after the first label roll (2) is removed from the first roll carrier (3.1), moving the first roll carrier (3.1) together with at least one clamping device (3.11) that is radially displaceable between a clamping position (a) and a release position (b) and comprising a contact surface which in the clamping position (a) lies radially further outside than in the release position (b), along an axis (X) into the interior of the second roll carrier (4.1) into a transfer position (2),

    - during and/or after the moving of the first roll carrier (3.1) into the interior of the second roll carrier (4.1), radial displacing of the at least one clamping device (3.11) of the first roll carrier (3.1) into the clamping position (a) and thereby tightly clamping the second label roll (2') on the first roll carrier (3.1), and

    - following the tightly clamping of the second label roll (2') on the first roll carrier (3.1), moving the first roll carrier (3.1) along the axis (X) back into the unwinding position (I) of the first roll carrier (3.1).
12. The method according to Claim 11, characterized in that before the first roll carrier (3.1) is freed of the first label roll (2), the outer end of the second label roll (2') is joined to the inner end of the first label roll (2).
13. The method according to Claim 11 or 12, characterized in that the first label roll (2) and/or the second label roll (2') comprises a separate core element (2.1), in particular a sleeve-like core element (2.1), preferentially made of metal and/or cardboard and/or wood and/or plastic, which touches and surrounds the respective roll carrier (3.1; 4.1) loaded with the label roll (2; 2').
14. The method according to any one of Claims 11 to 13, characterized in that for removing the first label roll (2) and/or the core element (2.1) of the first label roll (2) from the first roll carrier (3.1)

    - the at least one clamping device (3.11) of the first roll carrier (3.1) is radially displaced into a release position (b), in which the first label roll (2) is loosely supported on the first roll carrier (3.1), and/or

    - the first roll carrier (3.1) is moved along the axis (X) past a stripping element (6) into a dropping position (III), which is further away from the transfer position (II) than the unwinding position (I), wherein upon moving the first roll carrier (3.1) from the unwinding position (I) into the dropping position (III) the first roll carrier (3.1) passes the stripping element (6) and the first label roll (2) and/or the core element (2.1) of the first label roll (2) is grasped by the stripping element (6) and stripped from the first roll carrier (3.1).
15. The method according to any one of Claims 11 to 14, characterized in that for loading the second roll carrier (4.1) with the second label roll (2') the second label roll holder (4) and/or the second roll carrier (4.1) is moved, in particular pivoted, from a storage position (A) to a loading position (B), wherein in the loading position (B) the second roll carrier (4.1) is arranged outside the movement range of the first roll carrier (3.1).

Images