Spindle for winding up a portion of a label web

Abstract

The present invention particularly relates to a shaft (14) for winding up a portion of a label tape from a label roller (10), and a conveying device (60) for conveying the label tape of the label roller (10). The shaft (14) includes a shaft body (22) having a longitudinal gap (24), preferably a longitudinal suction gap and / or a longitudinal clamping gap, for receiving and holding the starting point of the portion of the label tape.

Description

Technical Field

[0001] This invention relates to a shaft for winding label tape from a label roller, and to a conveying device for transporting the label tape. The invention also relates to a conveying device, a method for transporting label tape from a label roller, a method for manufacturing a shaft, and a computer program product. Background Technology

[0002] The container handling equipment may include labeling equipment for affixing labels to the containers. For example, the labeling equipment may label the containers with labels from a label roller (a roller with label material).

[0003] Traditionally, label rollers are added manually by the operator. If necessary, the user must perform further tasks, such as cutting the label tape to the correct position, applying double-sided tape to the label tape, or introducing the label tape into an automated bonding system. Roller cassettes that allow for manual assembly of multiple rollers can also be used.

[0004] DE 10 2021 125 133 A1 describes a mobile robot, and a supply system and method for changing label rollers on a labeling unit for labeling containers. The mobile robot accordingly includes: a vehicle device for changing the robot's position; and a manipulator device having a multi-axis manipulator and an associated end effector for manipulating the label rollers. Because the end effector is configured to support the label rollers and the outer circumferential clamp of the empty roller core of the label rollers, ergonomically problematic steps in adding label rollers can be performed entirely by the machine in a highly accurate and material-saving manner.

[0005] EP 3 760 550 A1 describes a conveying unit for supplying labeling material rollers to a labeling module configured to apply labels to articles. The conveying unit has support elements configured to support a plurality of rollers arranged vertically in at least one stack. The conveying unit also includes a robotic arm configured to remove at least one roller from the stack at a gripping station and release it at a release station. Summary of the Invention

[0006] The purpose of this invention is to provide an improved technique for handling label tape used in assembling labeling systems.

[0007] This objective is achieved through the features of the independent claims. Advantageous improvements are given in the dependent claims and the specification.

[0008] One aspect relates to a shaft, preferably a suction shaft and / or a clamping shaft, for winding up a portion of a label tape from a label roller, for a conveying device for transporting the label tape. The shaft has (e.g., a single or multiple) shaft bodies having (e.g., variable) longitudinal clearances, preferably longitudinal suction clearances and / or longitudinal clamping clearances, for receiving and holding the starting point of the portion of the label tape.

[0009] In this way, a compact and universally available shaft for label tape handling can be advantageously provided. Since the label tape can be securely held in place by being accommodated in the longitudinal gap and wound onto the shaft, high process reliability is advantageously present. This advantage is further supported by the fact that when the label tape is handled, for example when it is transferred to an adhesive device, such as a splicing station, the label tape can be completely cut only at the end. Tighter but gentler label tape transport can be advantageously achieved through tape force adjustment. Tape force adjustment can be achieved, for example, via the shaft and / or via label roller supports (e.g., film plates), for example, based on the signal output of a force sensor. Combined with roller holders, handling via the shaft can advantageously provide a continuous automated solution for consumable supply.

[0010] In one embodiment, the shaft body (e.g., entirely or partially) is formed from a plurality of adjacent, preferably additively manufactured material layers (e.g., PA material layers).

[0011] Through additive manufacturing and related geometrical degrees of freedom and functional integration, the shaft body (and optionally the entire shaft) can be advantageously manufactured in a very economical and rapid (rapid manufacturing) manner. Additional functions, such as suction, clamping, and / or conduit functions, can be advantageously integrated directly into the shaft body during additive manufacturing via so-called in-situ printing. This also advantageously saves assembly time and the additional cost of additional components. Additive manufacturing can advantageously allow for very lightweight variant designs, such as those with different wavelengths. By using lightweight structural principles, material usage can be advantageously minimized. Advantageously, the shaft can theoretically be designed to have fatigue strength and be maintenance-free.

[0012] In another embodiment, at least one of the following is satisfied:

[0013] - The shaft body has a generally cylindrical external shape;

[0014] - The longitudinal clearance opens in the outer peripheral surface of the shaft body;

[0015] - The shaft is a hollow shaft;

[0016] - The outer peripheral surface of the shaft has a non-stick coating (e.g., made of silicone or PTFE);

[0017] - The shaft has a shoulder (e.g., shaft body or sheath) at its free end, preferably segmented or fully circumferential, to prevent the label tape from slipping off the shaft;

[0018] - The longitudinal clearance extends substantially along the entire length of the shaft body;

[0019] - The shaft and / or shaft body have a total length of ≥200mm and / or ≤300mm; and

[0020] - The shaft and / or shaft body have an outer diameter of ≥50mm and / or ≤100mm.

[0021] In one embodiment, the shaft further includes a preferably sleeve-shaped (tubular) and / or metal (e.g., aluminum) sheath, which is preferably releasable around the shaft body (e.g., the shaft body can be releasably inserted into the sheath). Optionally, the sheath may have a non-stick coating on its outer peripheral surface. Preferably, it may have one or both end regions of the shaft body, preferably protruding, nose-shaped, or bow-shaped tolerance compensation elements. The tolerance compensation elements may be distributed around the outer periphery of the shaft body and / or shape-lockingly and optionally force-lockingly retain the shaft body in the sheath.

[0022] The sheath can be advantageously machined with high precision, and the shaft body, for example, additively manufactured, can be inserted into the sheath. On the one hand, this offers the advantage of relative dimensional stability of the sheath and allows for even greater precision in further assembly, such as in clamps. On the other hand, it advantageously protects the filamentous plastic components of the shaft body from contamination and from damage in the event of impact. The sheath can provide further advantages, for example, in various safety aspects. Thus, for instance, areas of the shaft body subjected to pressure or vacuum can be isolated from the environment and are safe in the event of damage. Furthermore, the risk of clamping can be minimized through the sheath due to the clamping function of the shaft body.

[0023] Tolerance compensation elements can advantageously compensate for manufacturing tolerances in the shaft body at the mating diameter of the shaft body used for the sheath. Therefore, assembly capability can be advantageously ensured even without further post-machining processing steps.

[0024] For example, the sheath may have a longitudinal gap that covers the longitudinal gap of the shaft body.

[0025] The sheath can preferably be designed as a hollow shaft.

[0026] Alternatively, for example, the shaft body itself may form the outer peripheral surface of the shaft for contact with the portion when the label tape is rolled up. In other words, the shaft does not have a separate sheath; the shaft body is located therein.

[0027] In another embodiment, the shaft body includes a suction device for drawing the starting point of a portion of the label tape into the longitudinal gap. Therefore, it is advantageous to support the accommodation of the starting point of the label tape within the longitudinal gap.

[0028] In another implementation variant, at least one of the following is satisfied:

[0029] - The suction device is installed in the shaft;

[0030] - The suction device has a suction nozzle connected to the longitudinal gap for sucking up the starting point of a portion of the label tape;

[0031] - The suction device (e.g., complete) is formed of multiple adjacent, preferably additively manufactured material layers (e.g., PA material layers);

[0032] - The suction device extends substantially along the entire length of the shaft body; and

[0033] - The suction device has vacuum lines, which (e.g., are arranged parallel to the central longitudinal axis of the shaft, along with the suction nozzles (e.g., integrally formed).

[0034] In another embodiment, the shaft body includes a preferably pneumatic clamping device arranged to clamp the starting point of a portion of the label tape in a longitudinal gap. In this way, it can advantageously help to hold the starting point of the label tape in the longitudinal gap and help to securely wind the portion of the label tape onto the shaft.

[0035] In one embodiment, at least one of the following is satisfied:

[0036] - The clamping device is located in the shaft;

[0037] - The clamping device (e.g., complete) is formed of multiple adjacent, preferably additively manufactured material layers (e.g., PA material layers);

[0038] - The clamping device includes a preferably resilient (e.g., for clamping) pre-tensioned (e.g., plate-like) clamping element, which (e.g., relative to a reverse retainer) is movable to clamp and release the starting point of a portion of the label tape, wherein, preferably, the clamping element is aligned with and / or extends substantially along the entire length of the longitudinal gap of the shaft body; and

[0039] - The shaft body has (e.g., plate-like) a reverse retainer, or the reverse retainer of the shaft is releasably positioned (e.g., inserted) in the shaft body, preferably via a dovetail guide and / or a locking connector, wherein the reverse retainer is arranged to clamp the starting point of a portion of the label tape between itself and the clamping device.

[0040] In another embodiment, the clamping device includes at least one, preferably pneumatic, clamping actuator, preferably a bellows, for moving the clamping element of the clamping device. Optionally, at least one of the following is also satisfied:

[0041] - At least one clamping actuator (e.g., fully) is formed of multiple adjacent, preferably additively manufactured material layers (e.g., PA material layers); and

[0042] - The shaft body has compressed air lines, which (e.g., integrally connected to at least one clamping actuator and are preferably spaced apart parallel to the central longitudinal axis of the shaft.

[0043] In one embodiment, the shaft also includes a strip sensor arranged to detect the starting point of a portion of the label strip accommodated in the longitudinal gap. Thus, for example, it can be advantageously tested whether the starting point of the label strip has been successfully accommodated in the longitudinal gap.

[0044] In another embodiment, at least one of the following conditions is met:

[0045] - A sensor is disposed in the shaft body, preferably for detecting the starting point of the portion of the label tape that protrudes into the shaft body through the longitudinal gap;

[0046] -The sensor is an optical sensor, preferably a laser sensor or an LED sensor;

[0047] - Connected to the shaft body with a sensor for torsion resistance;

[0048] - The sensor is located in the free end region of the shaft or at a specific location; and

[0049] - The shaft body has multiple retaining elements along its length inside, which hold the signal line connected to the sensor.

[0050] On the other hand, it relates to a (e.g., fixed) conveying device, preferably a robotic conveying device (e.g., an articulated arm robotic conveying device), for conveying label tape from a label roller. The conveying device has an axis as disclosed herein. Furthermore, at least one of the following may preferably be satisfied:

[0051] - The shaft is the end effector of the conveying device;

[0052] - The shaft is rotatably supported only on one end; and

[0053] - At least one of the rotary distributor (e.g. for compressed air or vacuum), assembly flange and vacuum generator is formed of a plurality of adjacent, preferably additively manufactured material layers, preferably together with the shaft body.

[0054] Another aspect relates to a labeling system for labeling containers. The labeling system includes two label roller supports, each for housing a label roller, an adhesive device (e.g., a splicing device) for connecting the start point of the label tape from one label roller to one end of the label tape from the other label roller, and a conveying device as disclosed herein. The conveying device (e.g., by means of a processing device) is configured to optionally supply a portion of the label tape from one of the two label roller supports to the adhesive device via a shaft, and optionally prepares this portion for the adhesive device, preferably by cutting and / or providing adhesive (e.g., double-sided tape).

[0055] On the other hand, it relates to a container handling apparatus (e.g., for temperature control, manufacturing, cleaning, coating, testing, filling, sealing, pasteurizing, decorating, labeling, printing, engraving, laser engraving, and / or packaging containers for liquid or paste-like media, preferably beverages, liquid foods, or products from the pharmaceutical or healthcare industries). The container handling apparatus may include shafts as disclosed herein, conveying devices as disclosed herein, or labeling systems as disclosed herein. The container handling apparatus may, for example, be a beverage filling apparatus.

[0056] On the other hand, a method for transporting label tape of a label roller by means of a shaft as disclosed herein or by means of a transport device as disclosed herein is provided. The method comprises: accommodating the starting point of a portion of the label tape of the label roller (e.g., from a label roller support (e.g., a turntable) of the labeling system) in a longitudinal gap of the shaft body, preferably assisted by suction of the starting point by means of a suction device of the shaft.

[0057] Optionally, the method further includes at least one of the following:

[0058] - The starting point is detected by a sensor on the shaft, which is contained in the longitudinal clearance;

[0059] - The starting point, which is contained in the longitudinal clearance, is held in the longitudinal clearance by a clamping device on the shaft;

[0060] - Parts are wound onto the shaft by means of a rotating shaft (e.g., by means of a conveying device); and

[0061] - Moving parts by moving axes in space, for example by means of a handling device (e.g., a handling robot).

[0062] Another aspect relates to a method for manufacturing a shaft as disclosed herein. The method includes additively manufacturing the shaft body of the shaft in multiple adjacent material layers, preferably in a powder bed process (e.g., MJF-multijets fusion) or a jetting process (e.g., multijets modeling).

[0063] For example, the Polyjet method can advantageously allow for the additive manufacturing of different functional areas of the shaft body from various materials during the manufacturing process. For instance, the clamping actuator can be made of a material optimized for reversible deformation. For example, a material with rubber-like properties can be used on the surface of the reverse retainer to achieve deformation adaptability and a high coefficient of friction. For example, in addition to geometric reinforcement, reinforcing materials can be used in regions within the shaft body where the force flow generated by clamping is dominant (e.g., at the reverse retainer).

[0064] The method may also include chemical smoothing of the shaft body surface. This can advantageously improve the surface quality of the shaft. For example, this can positively impact the service life of clamping actuators configured as bellows. It can also advantageously reduce the notch effect at narrow folding radii.

[0065] On the other hand, it relates to a computer program product including instructions (e.g., having at least one computer-readable storage medium stored thereon) that cause an additive manufacturing apparatus (e.g., a 3D printer) to perform a method for manufacturing an axis as disclosed herein, or to manufacture an axis as disclosed herein in a plurality of adjacent material layers in an additive manufacturing process.

[0066] For example, a computer program product may include a file displaying an axis and / or an axis body. For example, the display may be a 3D model of the axis and / or the axis body. For example, the display may have multiple layers, such as displaying multiple material layers.

[0067] The preferred embodiments and features of the present invention described above can be combined with each other as needed. Attached Figure Description

[0068] Other details and advantages of the invention will now be described with reference to the accompanying drawings. In the drawings:

[0069] Figure 1 A schematic perspective view of the label roller is shown;

[0070] Figure 2 A perspective view of the shaft according to an embodiment is shown;

[0071] Figure 3 A perspective view of the shaft body of an exemplary shaft is shown;

[0072] Figure 4 Another perspective view of the shaft body is shown;

[0073] Figure 5 A perspective sectional view through an exemplary axis is shown;

[0074] Figure 6 Another cross-sectional view through the exemplary axis is shown;

[0075] Figure 7 A sectional view through the shaft body is shown;

[0076] Figure 8 A perspective view of a portion of the labeling system and conveying device according to an embodiment is shown;

[0077] Figure 9 A perspective sectional view through the shaft body is shown when the label tape containing the label roller begins to pass through it;

[0078] Figure 10 A perspective view of the area of ​​the shaft body is shown;

[0079] Figure 11 A perspective view of an axis according to another embodiment is shown;

[0080] Figure 12 A perspective view of an axis according to another embodiment is shown;

[0081] Figure 13 A perspective view of an axis according to another embodiment is shown;

[0082] Figure 14-17 A schematic diagram of the elastically preloaded shaft region is shown to explain the clamping function of the corresponding shaft.

[0083] The embodiments shown in the figures are at least partially corresponding, so similar or identical parts are given the same reference numerals. In order to avoid repetition, reference is also made to the description of other embodiments or figures. Detailed Implementation

[0084] Figure 1 A preferred embodiment of a label roller 10 prepared for transport by means of the shaft disclosed herein is shown. Figure 1 The state during preparation before the adhesive label roller 10 is shown.

[0085] The label roller 10 or its label tape can have a height, for example, in the range of 20 mm to 200 mm, and other tape heights are also conceivable. The label tape material is preferably polypropylene (PP), while other tape materials are also conceivable.

[0086] The (starting) portion of the label tape of the label roller 10 (e.g., at the manufacturer's location) can preferably be secured by double-sided tape 12, specifically such that the starting portion protrudes from the tape 12 by a distance a. Therefore, the tape 12 can be positioned at a distance a from the edge of the starting point of the label tape. This distance a can be, for example, a few centimeters, such as between 30 mm and 40 mm.

[0087] Preferably, the tape 12 may also be spaced apart from the upper and / or lower edges of the label tape. For example, the distance b to the upper edge may be between 1 mm and 5 mm. The distance c to the lower edge may be between 1 mm and 5 mm.

[0088] Preferably, the tape 12 may have two sides with different adhesive strengths. Thus, for example, it can be ensured that when the tape starts to peel off, the tape 12 remains on the desired side, such as at the tape start point, rather than on the label roller 10.

[0089] Another possible possibility for preparation with a starting point is, for example, an adhesive strip with a non-adhesive end, which can be accommodated by the shaft disclosed herein.

[0090] Figures 2 to 7 Different views and sections of the shaft 14 used to transport the label tape from the label roller 10 are shown, such as Figure 1 The example is shown in the image.

[0091] Shaft 14 is used to receive and wind up (wrap) the (starting) portion of the label tape from label roller 10. Shaft 14 may be a hollow shaft to receive the starting point of the label tape. The portion of the label tape wound on shaft 14 can be held in place by shaft 14. The label tape held in this manner can then be further handled and processed, for example.

[0092] Preferably, shaft 14 can be part of a handling device for handling label tape. For example, shaft 14 can be designed as an end effector or part of an end effector for connection to a robotic arm, preferably a multi-axis robot, such as an articulated arm robot. For example, the robot can take over shaft 14 at a tool changing station, preferably automatically. For example, at a tool changing station, the robot can change shaft 14 and the label roller gripper as needed for gripping and handling the entire label roller 10. Shaft 14 can be used in other applications.

[0093] As explained in detail below as an example, according to the implementation scheme, shaft 14 can also be specified as a suction shaft and / or a clamping shaft.

[0094] Shaft 14 has a shaft body 22. Optionally, shaft 14 may also have, for example, a sheath 16 (only when...). Figure 2 , 5 (as shown in 6) and / or with sensor 50 (only in Figure 3 and 6 (See in the middle).

[0095] Shaft 14 can preferably have an outer diameter of ≥50 mm and / or ≤100 mm, for example, about 80 mm or less. For example, sheath 16 and / or shaft body 22 can have an outer diameter of ≥50 mm and / or ≤100 mm, for example, about 80 mm or less. Advantageously, with such a small outer diameter, a low mass moment of inertia can be achieved, which in turn facilitates belt force adjustment. Under normal circumstances, shaft 14 with this outer diameter may require approximately 8 rotations (600 mm roller outer diameter / 80 mm shaft diameter = 7.5 shaft rotations) to wind the first layer of label roller 10 onto shaft 14. Multiple / multi-layer winding of shaft 14 can advantageously support a secure hold of the label tape on shaft 14.

[0096] Shaft 14 can preferably have a total length of ≥200mm and / or ≤300mm. For example, sheath 16 and / or shaft body 22 can have a total length of ≥200mm and / or ≤300mm. Preferably, with such a total length, multiple label tapes of different heights can be transported by means of shaft 14.

[0097] The sheath 16 is preferably sleeve-shaped / tubular. The sheath 16 can preferably be designed as a sleeve. The sheath 16 can preferably releasably surround the shaft body 22. The shaft body 22 can be arranged within the sheath 16. Preferably, the shaft body 22 can be inserted into the sheath 16. For example, the sheath 16 can be a metal sheath, such as an aluminum sheath.

[0098] The outer peripheral surface of the sleeve 16 can contact the label tape, and the label tape can be rolled up on these peripheral surfaces if needed. The outer peripheral surface of the sleeve 16 may preferably have a non-stick coating. Therefore, it is advantageous to avoid using adhesive tape to secure the tape or its adhesive residue. The non-stick coating may be, for example, a ceramic or plastic coating. For example, the non-stick coating may be made of silicone or polytetrafluoroethylene.

[0099] The shaft 14 may have a shoulder 18. For example, the sheath 16 or the shaft body 22 may have a shoulder 18. The shoulder 18 may be, for example, ring-shaped or collar-shaped.

[0100] Shoulder 18 may preferably be arranged at the free (lower) end of shaft 14. Shoulder 18 may rotate fully or only segmentally about shaft 14. Shoulder 18 prevents the label tape from moving or slipping off shaft 14. For example, the lower longitudinal edge of the label tape may be supported on shoulder 18. The label tape may be guided along shoulder 18, for example, when wound onto shaft 14.

[0101] The sleeve 16 may have a longitudinal gap 20. The longitudinal gap 20 may extend parallel to the longitudinal axis of the sleeve 16. The longitudinal gap 20 connects the outer peripheral surface of the sleeve 16 to the inner peripheral surface of the sleeve 16. Through the longitudinal gap 20, the starting point of the label tape can pass through the sleeve 16 and be introduced into the shaft 14, thereby leading into the shaft body 22.

[0102] Alternatively, for example, shaft 14 may not have a sheath. For example, shaft body 22 itself may form the outer peripheral surface of shaft 14 for contacting and winding the label tape portion.

[0103] Preferably, the shaft body 22 can be formed wholly or partially from a plurality of adjacent additively manufactured material layers. The material layers can be, for example, polyamide material layers (PA material layers), such as those made of PA12. For example, the shaft body 22 can be additively manufactured in a powder bed process (e.g., MJF-multijets fusion) or a jetting process (e.g., multijets modeling). If additive manufacturing is performed via a powder bed process, all regions of the shaft body 22 can preferably be designed such that unmelted residual powder can be removed from the shaft body 22. For example, the shaft body 22 can have multiple dust collection openings for this purpose.

[0104] Based on the principles of lightweight structures, the wall thickness and cross-section of different regions within the shaft body 22 can be strengthened according to the corresponding force applied (see example). Figure 3 and Figure 4 (Irregular and / or perforated and / or ribbed areas of the central axis body 22).

[0105] The shaft body 22 may have a substantially cylindrical external shape.

[0106] The shaft body 22 has a longitudinal gap 24. The starting point of a portion of the label tape can be accommodated in the longitudinal gap 24.

[0107] Preferably, the starting point can be held in the longitudinal gap 24 in any conceivable manner, such as by clamping and / or suction. For example, the longitudinal gap 24 can be designed as a longitudinal suction gap and / or a longitudinal clamping gap.

[0108] The longitudinal clearance 24 may preferably extend parallel to the longitudinal axis of the shaft 14. The longitudinal clearance 24 may preferably extend substantially along the entire length of the shaft body 22. The longitudinal clearance 24 may have a total length of, for example, ≥200 mm and / or ≤300 mm.

[0109] If the sheath 16 is surrounded, the longitudinal gap 20 of the sheath 16 and the longitudinal gap 24 of the shaft body 22 can be aligned with each other, preferably aligned. For example, the longitudinal gap 20 of the sheath 16 can overlap / cover the longitudinal gap 24 of the shaft body 22.

[0110] The shaft body 22 may preferably have a suction device 26 and / or a clamping device 32 and / or at least one tolerance compensation element 48.

[0111] The suction device 26 can be constructed and arranged to draw the starting point of the label tape into the longitudinal gap 24 of the shaft body 22 and into the longitudinal gap 24 of the shaft body 22.

[0112] The suction device 26 is preferably arranged in the (hollow) shaft 14. The suction device 26 can be torsionally connected to the shaft 14 and can rotate with the shaft 14.

[0113] For example, the suction device 26 may have a suction nozzle 28. The suction nozzle 28 may be arranged in the shaft 14. The suction nozzle 28 may extend substantially along the entire length of the shaft 14 and / or the shaft body 22, for example. The geometry of the suction nozzle 28 may preferably be designed for flow optimization.

[0114] The starting point of the label tape can be drawn into the longitudinal gap 24 (and, if necessary, into the longitudinal gap 20) via the suction nozzle 28. The suction nozzle 28 is preferably connected to the longitudinal gap 24, and can be connected to the longitudinal gap 20 if necessary. In other words, the longitudinal gap 24 can be the inlet opening of the suction nozzle 28 through which the starting point of the label tape can be drawn into the suction nozzle 28.

[0115] The suction device 26 may have a vacuum line (vacuum action line) 30. For example, the vacuum line 30 may be tubular. The longitudinal axis of the vacuum line 30 may preferably be parallel to and spaced apart from the central longitudinal axis of the shaft 14. The route of the vacuum line 30 may preferably be configured in a flow-optimized manner.

[0116] The vacuum line 30 can be connected to a suction nozzle 28 for evacuating air. The suction nozzle 28 can extend radially from the vacuum line 30 and lead to the longitudinal gap 24, for example.

[0117] On the other hand, vacuum line 30 can be connected to a vacuum supply / source, for example, outside the shaft 14. One end of vacuum line 30 can lead to the end of shaft body 22. The vacuum source can include, for example, a vacuum generator, such as a side-channel compressor.

[0118] Preferably, the suction device 26 is formed wholly or partially from a plurality of adjacent additively manufactured material layers. The material layers may be, for example, polyamide material layers (PA material layers), such as those made of PA12. For example, the suction device 26 may be additively manufactured in a powder bed process (e.g., MJF-multijets fusion) or a polyjet process (e.g., multijets modeling).

[0119] The suction device 26 may be supported, for example, by at least one compressed air nozzle (not shown) on the shaft 14. For example, at least one compressed air nozzle may be arranged outside the shaft 14. For example, at least one compressed air nozzle may selectively direct compressed air onto the label roller 10 to lift the strip protrusion from the label roller 10 so as to receive it as the starting point of the label strip in the longitudinal gap 24.

[0120] The clamping device 32 can be used to clamp the starting point of a label tape housed in the longitudinal gap 24 and optionally in the longitudinal gap 20. Preferably, the clamping device 32 can clamp the starting point of the label tape, which is drawn into the shaft body 22 through the longitudinal gap 24 and optionally the longitudinal gap 20 via the suction device 26. The clamping device 32 is preferably a pneumatic clamping device.

[0121] The clamping device 32 is preferably arranged in the (hollow) shaft 14. The clamping device 32 can be torsionally connected to the shaft 14 and can rotate with the shaft 14.

[0122] The clamping device 32 can preferably extend substantially along the entire length of the shaft 14.

[0123] The clamping device 32 is preferably formed wholly or partially from a plurality of adjacent additively manufactured material layers. The material layers may be, for example, polyamide material layers (PA material layers), such as those made of PA12. For example, the clamping device 32 may be additively manufactured in a powder bed process (e.g., MJF-multijets fusion) or a polyjet process (e.g., multijets modeling).

[0124] The clamping device 32 may include, for example, a clamping element 34 and at least one clamping actuator 36.

[0125] The clamping element 34 may be movable and is used to clamp and release the starting point of the label tape. The clamping element 34 is preferably plate-shaped. The clamping element 34 is preferably aligned with the longitudinal gap 24. The clamping element 34 may extend substantially along the entire length of the longitudinal gap 24.

[0126] At least one clamping actuator 36 may be connected to the clamping element 34 to move the clamping element 34.

[0127] Preferably, a plurality of clamping actuators 36 are included. For example, the plurality of clamping actuators 36 may be arranged one on top of another. The plurality of clamping actuators 36 may preferably be arranged in a row, side by side or one on top of another, relative to the longitudinal axis of the shaft 14 of the shaft body 22.

[0128] At least one clamping actuator 36 may be, for example, an inflatable bellows or a pneumatic cylinder. At least one clamping actuator 36, acted upon by compressed air, may press the clamping element 34 against the reverse retainer 40 to clamp the starting point of the label tape, or alternatively or additionally, remove the clamping element 34 from the reverse retainer 40 to release the clamp.

[0129] For example, compressed air can be supplied to at least one clamping actuator 36 via a compressed air line 38 of the clamping device 32. The compressed air line 38 can be connected, for example, to a compressed air supply, such as on the end side of the shaft 14.

[0130] The compressed air line 38 is preferably integrated directly into the shaft body 22. The longitudinal axis of the compressed air line 38 may preferably be parallel to and spaced apart from the central longitudinal axis of the shaft body 22. The compressed air line 38 may preferably have a flow-optimized route.

[0131] The starting point of the label tape can be clamped between the clamping element 34 and the reverse retainer 40. The clamping element 34 and the reverse retainer 40 can be directly opposite each other. The reverse retainer 40 is preferably plate-shaped.

[0132] The longitudinal gap 24 may preferably be formed at least in sections between the clamping element 34 and the reverse retainer 40. The space between the clamping element 34 and the reverse retainer 40 may preferably form part of the suction nozzle 28.

[0133] The reverse retainer 40 can support the anti-slip element 42. The anti-slip element 42 can be, for example, a rubber element, such as an EPDM element (ethylene-propylene-diene rubber). The anti-slip element 42 can be used to increase the coefficient of friction. During clamping, the anti-slip element 42 can rest against the starting point of the label tape and increase the frictional resistance with the label tape.

[0134] The anti-slip element 42 can be supported on the clamping element 34.

[0135] For example, as an alternative to the anti-slip support element 42, the reverse retainer 40 may also have a flexible and / or rough structure (e.g., an arcuate structure) to increase the coefficient of friction.

[0136] Preferably, the reverse retainer 40 is formed wholly or partially from a plurality of adjacent additively manufactured material layers. The material layers may be, for example, polyamide material layers (PA material layers), such as those made of PA12. For example, the reverse retainer 40 may be additively manufactured in a powder bed process (e.g., MJF-multijets fusion) or a polyjet process (e.g., multijets modeling).

[0137] For example, the reverse retainer 40 can be releasably inserted into the shaft body 22 (without tools). Preferably, the reverse retainer 40 can be released from and removed from the shaft body 22 without tools. Due to its removability, the reverse retainer 40 can be easily cleaned and replaced with a new reverse retainer if necessary. Therefore, for example, it is not necessary to remanufacture the entire shaft body 22.

[0138] For example, the reverse retainer 40 can be inserted into the shaft body 22 via the dovetail guide 44 (see...). Figure 3 ).

[0139] For example, the reverse retainer 40 can be releasably mounted to the shaft body 22 via at least one locking connector 46 (see, for example, see...). Figure 4 and Figure 7 Preferably, the reverse retainer 40 may have multiple locking elements that can lock into or onto the bearing portion of the shaft body 22.

[0140] Alternatively, for example, the reverse retainer 40 may be integrally connected to the shaft body 22, or it may be part of the shaft body 22 itself.

[0141] The clamping element 34 can be elastically preloaded toward the reverse retainer 40, for example, elastically preloaded toward the reverse retainer 40. The reverse retainer 40 can be elastically preloaded toward the clamping element 34, for example, elastically preloaded.

[0142] Preferably, the clamping element 34 and / or the reverse retainer 40 may be at least partially formed and / or resiliently press-fit. For example, the surface of the clamping element 34 may be provided with a wire structure. To improve the clamping effect, the wire structure may be pressed into the reverse retainer 40 and / or the anti-slip element 42.

[0143] Preferably, even with a closed clamping between the clamping element 34 and the reverse retainer 40, an open cross-section for evacuating air can still be provided through the gap between the clamping element 34 and the surrounding portion of the shaft body 22. This cross-section allows for a defined airflow to be preferably positioned. This can be used, for example, to cool a vacuum source. If desired, this gap can be structurally adapted to the requirements of the corresponding vacuum source. For example, the further the clamping element 34 can extend, the more open the cross-section can be generated in the case of active clamping.

[0144] Tolerance compensation elements 48 may be disposed in one or both end regions of the shaft body 22. Tolerance compensation elements 48 may be designed, for example, on the front, as a raised plate, nose, or bow shape. Tolerance compensation elements 48 may be distributed around the outer periphery of the shaft body 22. Tolerance compensation elements 48 may form-lockingly and optionally force-lockingly retain the shaft body 22 in the sleeve 16, if present.

[0145] The sensor 50 can preferably detect when the starting point of the label tape is accommodated in the longitudinal gap 24.

[0146] The sensor 50 can be torsionally connected to the shaft 14. The sensor 50 can preferably be arranged in the shaft 14.

[0147] The sensor 50 can be, for example, an optical sensor, such as a laser sensor or an LED sensor. The sensor 50 can also be, for example, a light barrier, such as a reflective light barrier. In this respect, Figure 6 and 7 The diagram is purely schematic and may emit a beam of signal (e.g., a beam of light or a laser) S that the sensor 50 may emit to detect the start of the tag tape.

[0148] For example, the tape sensor 50 can be arranged in the free end region of the shaft 14 and / or the shaft body 22. It is sufficient to arrange the tape sensor 50 only in the free end region of the shaft 14, because label tapes of different heights can be wound onto the shaft 14 and are always resting against and guided on the shoulder 18. Therefore, when accommodated by the shaft 14, the lower edge of the label tape is always located at the lower edge of the longitudinal gap 24, and the tape sensor 50 can also be arranged at the lower edge of the longitudinal gap 24.

[0149] Signals (e.g., electrical) from sensor 50 can be transmitted from shaft 14, for example, via signal line 52. Preferably, the longitudinal axis of signal line 52 can be parallel to and spaced apart from the central longitudinal axis of shaft body 22. For example, shaft body 22 can have a plurality of retaining elements inside it along its length. The retaining elements can preferably releasably retain signal line 52 (see, for example...). Figure 3 The retaining element can be, for example, in the form of a wire clamp.

[0150] Figure 8 Details of the labeling system 54 are shown. For example, the labeling system 54 may also include a labeling unit (not shown) for labeling containers. As the container passes through the labeling unit, the labeling unit can label it with a label from a label tape delivered by (e.g., linear or rotary) a container conveyor (also not shown). Figure 8 (As shown in the image) The container for transport.

[0151] Preferably, the labeling system 54 may have two or more label roller supports 56 for accommodating one label roller 10 in each case for supplying label tape to the labeling unit. For example, the label roller supports 56 may be designed as a turntable and / or have a rotatable tension shaft for the label roller 10 in each case. Preferably, the turntable may be horizontally oriented and / or the clamping shaft may be vertically oriented. The label roller supports 56 may also be designed as compartments (e.g., inserts) with a preferred vertical orientation for the label roller storage.

[0152] Preferably, the labeling system 54 may further include an adhesive device 58 for adhesively attaching the starting point of a label strip from one label roller 10 to one end of a label strip from another label roller 10. The adhesive device 58 may preferably be designed as a so-called splicing device.

[0153] The labeling system 54 may also include a conveying device 60 having a shaft 14. The conveying device 60 is preferably a fixed conveying device. The conveying device 60 may preferably be a robotic conveying device, such as an articulated arm robotic conveying device.

[0154] Shaft 14 is preferably the end effector of the conveying device 60. Preferably, shaft 14 can be rotatably supported only on one end side of shaft 14, that is, opposite to the free end of shaft 14.

[0155] The drive unit of the conveying device 60 is drivably connected to the shaft 14 for rotating the shaft 14 about its central longitudinal axis. The drive unit is preferably an electric drive unit, such as a servo motor. The drive unit can preferably be connected to the shaft 14 via a gearbox. Alternatively, the drive unit can be directly connected to the shaft 14. The drive unit can allow the shaft 14 to rotate in two rotational directions.

[0156] Reference Figure 8 and Figure 9 The following example illustrates a method for transporting label tape from label roller 10 using shaft 14.

[0157] The starting point of the label tape of the label roller 10 is accommodated in the longitudinal gap 24. For this purpose, the label roller 10 can be accommodated, for example, on one of the label roller supports 56. Preferably, the starting point of the label tape can be assisted by means of a suction device 26 to draw / pull the starting point into the longitudinal gap 24. Preferably, the starting point of the label tape can be accommodated in the longitudinal gap 24, and if necessary, can be drawn in such that it is positioned between the clamping element 34 and the reverse retainer 40 (and, if necessary, the anti-slip element 42).

[0158] Preferably, the starting point of the label tape can be detected by means of a sensor 50, which can detect that the label tape has been accommodated in the longitudinal gap 24. The sensor 50 can, for example, output a corresponding detection signal to the processing equipment of the conveying device 60.

[0159] For example, the clamping device 32 can be actuated by the processing equipment in response to receiving a signal output from the sensor 50. The starting point of the label tape housed in the longitudinal gap 24 can be clamped by the clamping device 32. For example, the starting point of the label tape housed in the longitudinal gap 24 can be clamped between the clamping element 34 and the reverse retainer 40 (and, if necessary, the anti-slip element 42). To actuate the clamping device 32 to move the clamping element 34, compressed air can preferably be supplied to at least one clamping actuator 36 (see, for example...). Figure 7).

[0160] The separation of this portion from the label roller 10 is then preferably performed by a shearing or stretching motion. This motion can be achieved, for example, by the movement of a conveying device 60 (e.g., a robotic arm).

[0161] After the starting point of the label tape is received and preferably held in the longitudinal gap 24, a portion of the label tape can be wound onto the shaft 14. For this purpose, the shaft 14 can preferably be rotated about the central longitudinal axis of the shaft 14 by the drive unit of the conveying device 60. Preferably, at least one complete circumference of the label roller 10 is wound onto the shaft 14 as part of the label tape, for example due to dirt and tape residue and to securely fix it to the shaft 14.

[0162] The label tape held in this manner on the shaft 14 can then be moved and transported by the transport device 60 by moving the shaft 14 in space to a desired destination. For example, the transport device 60 can supply the label tape to the bonding device 58 for bonding one end of another label tape from another label roller support 56 to the label roller 10. Alternatively, the label tape can be pre-prepared, for example, cut to a certain size and / or equipped with adhesive (e.g., tape), for example by the transport device 60 or another device.

[0163] When the starting point of the tape is inserted into the adhesive device 96, the remaining portion of the label tape wrapped around the shaft 14 may be cut off and left on the shaft 14.

[0164] For example, the remaining portion can be cut by the cutting unit on shaft 14. Therefore, preferably, only the portion on shaft 14 that is clamped remains. The remaining portion can be suctioned and processed by suction device 26. In this case, the partially non-stick coating inside suction device 26 ensures that the remaining portion to which adhesive can be applied will not adhere to suction device 26 and clog it.

[0165] Alternatively, for example, the remaining portion of the winding can be moved to an external suction station. The suction station may include, for example, a fixed suction unit from which the remaining portion can be suctioned. By rotating shaft 14 and opening clamping device 32, the remaining portion can be released from shaft 14.

[0166] The following reference Figure 10 Subsequently, different variations and modifications of axis 14 and axis body 22 are explained. It should be understood that all features can be combined with each other individually or in any combination, and with the features already explained.

[0167] Figure 10 The improved shaft body 22 is shown.

[0168] For example, in the case of the shaft body 22, the tolerance compensation element 48 can be arc-shaped, such as a tolerance compensation arc. The arc-shaped tolerance compensation element 48 can be distributed around the outer periphery of the shaft body 22 in one or both end regions of the shaft body 22. Preferably, a plurality of arc-shaped tolerance compensation elements 48 are arranged in the form of collars in one or both end regions of the shaft body 22.

[0169] Figure 11 The improved shaft 14 is shown.

[0170] For example, shaft 14 may not have a sheath. Instead, the outer peripheral surface of shaft body 22 itself may form the outer peripheral surface of shaft 14. Accordingly, the outer peripheral surface of shaft 14 on which the label tape is wound may preferably be manufactured by additive manufacturing.

[0171] For example, if PA12 is used as the manufacturing material for this purpose, an advantageous characteristic of the outer peripheral surface of the shaft 14 of the shaft body 22 might be its anti-adhesion properties against adhesives. For example, this can prevent (double-sided) tape from adhering to the outer peripheral surface.

[0172] Preferably, the outer peripheral surface of the shaft 14 formed by the shaft body 22 may have a plurality of dust removal openings 62. The dust removal openings 62 may be arranged spaced apart from each other in the outer peripheral surface, for example, along the longitudinal axis of the shaft 14 of the shaft body 22. Alternatively or additionally, the dust removal openings 62 may be distributed, for example, around the outer peripheral surface of the shaft 14 of the shaft body 22.

[0173] The shaft body 22 may have a reverse retainer 40. Accordingly, the reverse retainer 40 may be manufactured directly together with the rest of the shaft body 22, for example, having a suction device 26 and / or a clamping device 32, preferably manufactured additively. Thus, it is advantageous to eliminate the additional manufacturing and assembly steps of the reverse retainer 40. Therefore, it is advantageous to further reduce costs.

[0174] like Figure 11 As shown as an example, the reverse retainer 40 may have, for example, a flexible and / or rough structure 64 for increasing the coefficient of friction. The starting point of the tag tape can then be clamped to the flexible and / or rough structure 64 of the reverse retainer 40 and the clamping element 34 of the clamping device 32 (in... Figure 11 (Hidden in the middle)

[0175] Figure 12 The improved shaft 14 is shown.

[0176] Preferably, the shaft 14 may have a vacuum generator 66 or be directly connected to it. The vacuum generator 66 may, for example, include a region that is part of the shaft body 22, or may be integrally formed with the shaft body 22. The vacuum generator 66 may preferably be arranged at one end of the shaft 14, for example, on the end side.

[0177] The vacuum generator 66 can preferably be formed from a plurality of adjacent additively manufactured material layers. The material layers can be, for example, polyamide material layers (PA material layers), such as those made of PA12. For example, the vacuum generator 66 can be additively manufactured in a powder bed process (e.g., MJF-multijets fusion) or a polyjet process (e.g., multijets modeling).

[0178] For example, the vacuum generator 66 can be designed as a volumetric flow amplifier. The vacuum generator 66 can, for example, receive a relatively small airflow and generate a relatively large airflow through a defined geometry (e.g., a Venturi nozzle). Therefore, external equipment for generating a vacuum can be advantageously omitted.

[0179] Figure 13 The improved shaft 14 is shown.

[0180] Shaft 14 may preferably have a rotary distributor 68 and / or an assembly flange 70, or may be directly connected to it.

[0181] The rotary distributor 68 and / or assembly flange 70 may include, for example, a region that is part of the shaft body 22, or may be integrally formed with the shaft body 22.

[0182] The rotary distributor 68 and / or assembly flange 70 may preferably be arranged at one end of the shaft 14, for example, on the end side.

[0183] The rotary distributor 68 and / or assembly flange 70 can preferably be formed from multiple adjacent additively manufactured material layers. The material layers can be, for example, polyamide material layers (PA material layers), such as those made of PA12. For example, the rotary distributor 68 and / or assembly flange 70 can be additively manufactured in a powder bed process (e.g., MJF-multijets fusion) or a polyjet process (e.g., multijets modeling).

[0184] For example, rotary distributor 68 can be configured to transfer vacuum to suction device 26 (in Figure 13 (Hidden in the middle) and / or deliver compressed air to clamping device 32. Preferably, the rotary distributor 68 can deliver vacuum or compressed air independently of the rotational position of shaft 14, i.e., for example, at an angle >360° (continuous rotation). For delivery, the rotary distributor 68 may have, for example, an upright portion that can be torsionally connected to an assembly flange (e.g., assembly flange 70) and a rotatable portion that can be torsionally connected to shaft body 22 / shaft 14.

[0185] For example, the assembly flange 70 can be configured to assemble the shaft 14 onto a support (e.g., a robotic arm) of the handling device 60 (see [reference]). Figure 8 Therefore, the assembly flange 70 can, for example, allow the shaft 14 to be connected to the transport device 60.

[0186] For example, where the manufacturing precision of the assembly flange 70 is insufficient, such as due to the process limitations of the additive manufacturing method, the assembly flange 70 can be post-processed by machining.

[0187] Figures 14 to 17 Different variations are shown, in which the clamping function of shaft 14 is elastically preloaded, preferably spring preloaded.

[0188] Shaft 14 may have at least one elastic element 72. Preferably, it includes a plurality of elastic elements 72. The elastic elements 72 may, for example, be spaced apart from each other relative to the longitudinal axis of shaft 14.

[0189] Preferably, at least one elastic element 72 may be designed as a spring element, such as a compression spring element or a tension spring element.

[0190] For example, at least one elastic element 72 can elastically preload the clamping element 34 for clamping, i.e., for movement to the reverse retainer 40. To release the clamp, for example, at least one clamping actuator 36 can be actuated by applying compressed air. The actuated clamping actuator 36 can move the clamping element 34 away from the reverse retainer 40 against the elastic preload. In this way, it can be advantageously ensured that the starting point of the label tape remains firmly held, even in the event of, for example, a compressed air failure.

[0191] At least one elastic element 72 may be supported, for example, on the shaft body 22 and / or the sheath 16.

[0192] At least one elastic element 72 may be arranged, for example as a conventional clamping element, during the assembly process of the shaft 14 to pre-tighten the clamping element 34 into the shaft body 22.

[0193] Optionally, at least one elastic element 72 may be formed, for example, from a plurality of adjacent additively manufactured material layers. For example, at least one elastic element 72 may be a region of the shaft body 22, and thus may be directly manufactured in its additive manufacturing.

[0194] Figure 14 and 15 The diagram shows in detail how several elastic elements 72 elastically preload the clamping element 34 toward the reverse retainer 40 for clamping. The elastic elements 72 are preferably conventional tension or compression springs.

[0195] like Figure 15 As shown, the clamping between the clamping element 34 and the reverse retainer 40 can be released by actuating the clamping actuator 36. The actuated clamping actuator 36 can resist the preload force generated by the elastic element 72 to move the clamping element 34 away from the reverse retainer 40.

[0196] Figure 16 and17 An embodiment of how to implement an elastic element 72 having at least one additively manufactured element is shown.

[0197] During additive manufacturing, at least one elastic element 72 may be manufactured initially in a relaxed state, for example, as a region of the shaft body 22. Elastic preload subsequently occurs during assembly, for example, when the shaft body 22 is inserted into the sheath 16 (see [link to assembly process]). Figure 16 ), or when the reverse retainer 40 is inserted into the shaft body 22 (see Figure 17 ).

[0198] Figure 16 The figure above shows that at least one elastic element 72 can be additively manufactured such that, in the relaxed state, one end of at least one elastic element 72 protrudes beyond the sheath 16. The other end of at least one elastic element 72 can be directly connected to the clamping element 34, for example. If multiple elastic elements 72 are included, one end of the elastic elements 72 can be connected to each other, for example, via a connecting element 74.

[0199] Figure 16 The figure below illustrates how at least one resilient element 72 is compressed and thus preloaded by inserting the shaft body 22 into the sleeve 16. One end of at least one resilient element 72 or connecting element 74 (if present) may be supported on the inner circumferential surface of the sleeve 16. For example, the resilient preload can overcome or eliminate the gap that still exists between the clamping element 34 and the reverse retainer 40 in the unassembled state.

[0200] Figure 17 The figure above shows the clamping element 34 being removed from the opposing surfaces through a (minimum) gap in the relaxed state of at least one elastic element 72. Therefore, for example, melting of the opposing surfaces during additive manufacturing can be prevented.

[0201] Figure 17 The figure below illustrates that during shaft assembly, a reverse retainer 40 can be inserted into the shaft body 22. As previously described, the reverse retainer 40 itself can be additively manufactured separately and / or carry anti-slip elements. The reverse retainer 40 inserted into the shaft body 22 can press the clamping element 34 against at least one resilient element 72. Thus, at least one resilient element 72 can be compressed, elastically pre-tensioning the clamping element 34 onto the reverse retainer 40. At least one clamping actuator 36 can extend around the displacement path of the clamping element 34.

[0202] For example, this variation might be useful if, instead of a separate sheath 16, the shaft body 22 itself forms the outer peripheral surface of the shaft 14.

[0203] This invention is not limited to the preferred embodiments described above. Instead, numerous variations and modifications are possible, which also utilize the concepts of this invention and thus fall within the scope of protection. In particular, this invention also claims protection for the subject matter and features of dependent claims independent of the cited claims. Specifically, the various features of independent claim 1 are disclosed independently of each other. Furthermore, features of dependent claims may also be disclosed and claimed independently of all features of independent claim 1, and for example, independently of features of independent claim 1 concerning the presence and / or configuration of the shaft body and / or longitudinal clearance. All scope details herein are understood to be disclosed and claimed in such a way that all values ​​falling within the corresponding scope are disclosed individually, for example, also as preferred narrower outer boundaries of the corresponding scope.

[0204] List of reference numerals

[0205] 10 label rollers

[0206] 12 Labels

[0207] 14-axis

[0208] 16-inch sheath

[0209] 18 Shoulders

[0210] 20 longitudinal clearance

[0211] 22-axis main body

[0212] 24 longitudinal gap

[0213] 26 suction equipment

[0214] 28 suction nozzles

[0215] 30 Vacuum Line

[0216] 32 clamping equipment

[0217] 34 clamping elements

[0218] 36 clamping actuator

[0219] 38 Compressed air lines

[0220] 40 Reverse Holder

[0221] 42 anti-slip elements

[0222] 44 dovetail guide rail

[0223] 46-lock connector

[0224] 48 tolerance compensation elements

[0225] 50 with sensors

[0226] 52 signal lines

[0227] 54 Labeling System

[0228] 56 Label Roller Support

[0229] 58 Adhesion Equipment

[0230] 60 conveying device

[0231] 62 dust removal openings

[0232] 64 structure

[0233] 66 Vacuum Generator

[0234] 68 Rotary Distributor

[0235] 70 Assembly Flange

[0236] 72 elastic elements

[0237] 74 connecting elements

[0238] S-signal beam.

Claims

1. A shaft (14), preferably a suction shaft and / or a clamping shaft, for winding up a portion of a label strip from a label roller (10), and a conveying device (60) for conveying the label strip from the label roller (10), wherein, The shaft (14) includes: A shaft body (22) having a longitudinal gap (24), preferably a longitudinal suction gap and / or a longitudinal clamping gap, for accommodating and holding the starting point of the portion of the label tape.

2. The shaft (14) according to claim 1, wherein, The shaft body (22) is formed of multiple adjacent, preferably additively manufactured material layers.

3. The shaft (14) according to claim 1 or claim 2, wherein, Meet at least one of the following: The shaft body (22) has a substantially cylindrical external shape; The longitudinal gap (24) opens in the outer peripheral surface of the shaft body (22); The shaft (14) is a hollow shaft; The outer peripheral surface of the shaft (14) has a non-stick coating; The shaft (14) has a shoulder (18) at its free end, preferably segmented or fully circumferential, to prevent the label tape from slipping off the shaft (14); The longitudinal gap (24) extends substantially along the entire length of the shaft body (22); The shaft (14) and / or the shaft body (22) have a total length of ≥200mm and / or ≤300mm; and The shaft (14) and / or the shaft body (22) have an outer diameter of ≥50mm and / or ≤100mm.

4. The shaft (14) according to any one of the preceding claims further comprises: Preferably, a sleeve-shaped and / or metal sheath (16) is provided, which is preferably releasable around the shaft body (22) and optionally has a non-stick coating on its outer peripheral surface; Preferably: One or both end regions of the shaft body (22) preferably have protruding, nose-shaped, or bow-shaped tolerance compensation elements (48), which - Distributed around the outer periphery of the shaft body (22); and - The shaft body (22) is held in the sleeve (16) in a shape-locking and optionally force-locking manner.

5. The shaft (14) according to any one of the preceding claims, wherein, The shaft body (22) includes a suction device (26) for drawing the starting point of the portion of the label tape into the longitudinal gap (24).

6. The shaft (14) according to claim 5, wherein, Meet at least one of the following: The suction device (26) is disposed in the shaft (14); The suction device (26) has a suction nozzle (28) connected to the longitudinal gap (24) for sucking in the starting point of the portion of the label tape; The suction device (26) is formed of multiple adjacent, preferably additively manufactured material layers; The suction device (26) extends substantially along the entire length of the shaft body (22); and The suction device (26) has vacuum lines (30) arranged at intervals parallel to the central longitudinal axis of the shaft (14).

7. The shaft (14) according to any one of the preceding claims, wherein, The shaft body (22) includes a preferably pneumatic clamping device (32) arranged to clamp the starting point of the portion of the label tape in the longitudinal gap (24).

8. The shaft (14) according to claim 7, wherein, Meet at least one of the following: The clamping device (32) is disposed in the shaft (14); The clamping device (32) is formed of a plurality of adjacent, preferably additively manufactured material layers; The clamping device (32) includes a preferably resiliently preloaded clamping element (34) movable to clamp and release the starting point of the portion of the label tape; The shaft body (22) has a reverse retainer (40), or the reverse retainer (40) of the shaft (14) is releasably positioned in the shaft body (22), preferably via a dovetail guide (44) and / or a locking connector (46), wherein the reverse retainer (40) is arranged to clamp the starting point of the portion of the label tape between itself and the clamping device (32).

9. The shaft (14) according to claim 7 or claim 8, wherein, The clamping device (32) includes at least one preferably pneumatic clamping actuator (36), preferably a bellows, for moving the clamping element (34) of the clamping device (32). Optionally, at least one of the following conditions must be met: The at least one clamping actuator (36) is formed of a plurality of adjacent, preferably additively manufactured material layers; and The shaft body (22) has compressed air lines (38) connected to the at least one clamping actuator (36) and preferably arranged at intervals parallel to the central longitudinal axis of the shaft (14).

10. The shaft (14) according to any one of the preceding claims further comprises: A sensor (50) is arranged to detect the starting point of the portion of the tag tape contained in the longitudinal gap (24).

11. The shaft (14) according to claim 10, wherein, Meet at least one of the following: The sensor (50) is disposed in the shaft body (22) and is preferably used to detect the starting point of the portion of the label tape that protrudes into the shaft body (22) through the longitudinal gap (24); The sensor (50) is an optical sensor, preferably a laser sensor or an LED sensor; The sensor (50) is torsionally connected to the shaft body (22). The sensor (50) is located in or at the free end region of the shaft (14); and The shaft body (22) has a plurality of retaining elements along its length inside, which retain the signal line (52) connected to the sensor (50).

12. A handling device (60), preferably a robotic handling device, for handling label tapes on a label roller (10), wherein, The conveying device (60) includes: The shaft (14) according to any one of the preceding claims. Preferably, at least one of the following is satisfied: The shaft (14) is the end effector of the conveying device (60); The shaft (14) is rotatably supported only on one end; and At least one of the rotary distributor (68), the assembly flange (70), and the vacuum generator (66) is formed of a plurality of adjacent, preferably additively manufactured layers of material, preferably together with the shaft body (22).

13. A method for transporting a label tape of a label roller (10) by means of a shaft (14) according to any one of claims 1 to 11 or by means of a transport device (60) according to claim 12, wherein, The method includes: The starting point of the label strip portion of the label roller (10) is accommodated in the longitudinal gap (24) of the shaft body (22), preferably assisted by suction of the starting point by means of a suction device (26) of the shaft (14). Optionally, the method further includes at least one of the following: The starting point is detected by means of a sensor on the shaft (14) within the longitudinal gap (24); The starting point, which is accommodated in the longitudinal gap (24), is held in the longitudinal gap (24) by the clamping device (32) of the shaft (14); The portion is wound onto the shaft (14) by rotating the shaft (14); and The part is moved by moving the axis (14) in space, for example by means of a conveying device (60).

14. A method for manufacturing a shaft (14) according to any one of claims 1 to 11, wherein, The method includes: The shaft body (22) of the shaft (14) is additively manufactured in multiple adjacent material layers, preferably in a powder bed process or a jet process.

15. A computer program product comprising instructions for causing an additive manufacturing apparatus. Perform the method according to claim 14; or In an additive manufacturing process, the shaft (14) according to any one of claims 1 to 11 is manufactured in a plurality of adjacent material layers.

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